Index: head/sys/kern/uipc_sem.c =================================================================== --- head/sys/kern/uipc_sem.c (revision 179962) +++ head/sys/kern/uipc_sem.c (revision 179963) @@ -1,1017 +1,1012 @@ /*- * Copyright (c) 2002 Alfred Perlstein * Copyright (c) 2003-2005 SPARTA, Inc. * Copyright (c) 2005 Robert N. M. Watson * All rights reserved. * * This software was developed for the FreeBSD Project in part by Network * Associates Laboratories, the Security Research Division of Network * Associates, Inc. under DARPA/SPAWAR contract N66001-01-C-8035 ("CBOSS"), * as part of the DARPA CHATS research program. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #include __FBSDID("$FreeBSD$"); #include "opt_mac.h" #include "opt_posix.h" #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include static int sem_count_proc(struct proc *p); static struct ksem *sem_lookup_byname(const char *name); static int sem_create(struct thread *td, const char *name, struct ksem **ksret, mode_t mode, unsigned int value); static void sem_free(struct ksem *ksnew); static int sem_perm(struct thread *td, struct ksem *ks); static void sem_enter(struct proc *p, struct ksem *ks); static int sem_leave(struct proc *p, struct ksem *ks); static void sem_exechook(void *arg, struct proc *p, struct image_params *imgp); static void sem_exithook(void *arg, struct proc *p); static void sem_forkhook(void *arg, struct proc *p1, struct proc *p2, int flags); static int sem_hasopen(struct thread *td, struct ksem *ks); static int kern_sem_close(struct thread *td, semid_t id); static int kern_sem_post(struct thread *td, semid_t id); static int kern_sem_wait(struct thread *td, semid_t id, int tryflag, struct timespec *abstime); static int kern_sem_init(struct thread *td, int dir, unsigned int value, semid_t *idp); static int kern_sem_open(struct thread *td, int dir, const char *name, int oflag, mode_t mode, unsigned int value, semid_t *idp); static int kern_sem_unlink(struct thread *td, const char *name); #ifndef SEM_MAX #define SEM_MAX 30 #endif #define SEM_MAX_NAMELEN 14 #define SEM_TO_ID(x) ((intptr_t)(x)) #define ID_TO_SEM(x) id_to_sem(x) /* * Available semaphores go here, this includes sem_init and any semaphores * created via sem_open that have not yet been unlinked. */ LIST_HEAD(, ksem) ksem_head = LIST_HEAD_INITIALIZER(&ksem_head); /* * Semaphores still in use but have been sem_unlink()'d go here. */ LIST_HEAD(, ksem) ksem_deadhead = LIST_HEAD_INITIALIZER(&ksem_deadhead); static struct mtx sem_lock; static MALLOC_DEFINE(M_SEM, "sems", "semaphore data"); static int nsems = 0; SYSCTL_DECL(_p1003_1b); SYSCTL_INT(_p1003_1b, OID_AUTO, nsems, CTLFLAG_RD, &nsems, 0, ""); static eventhandler_tag sem_exit_tag, sem_exec_tag, sem_fork_tag; #ifdef SEM_DEBUG #define DP(x) printf x #else #define DP(x) #endif static __inline void sem_ref(struct ksem *ks) { mtx_assert(&sem_lock, MA_OWNED); ks->ks_ref++; DP(("sem_ref: ks = %p, ref = %d\n", ks, ks->ks_ref)); } static __inline void sem_rel(struct ksem *ks) { mtx_assert(&sem_lock, MA_OWNED); DP(("sem_rel: ks = %p, ref = %d\n", ks, ks->ks_ref - 1)); if (--ks->ks_ref == 0) sem_free(ks); } static __inline struct ksem * id_to_sem(semid_t id) { struct ksem *ks; mtx_assert(&sem_lock, MA_OWNED); DP(("id_to_sem: id = %0x,%p\n", id, (struct ksem *)id)); LIST_FOREACH(ks, &ksem_head, ks_entry) { DP(("id_to_sem: ks = %p\n", ks)); if (ks == (struct ksem *)id) return (ks); } return (NULL); } static struct ksem * sem_lookup_byname(const char *name) { struct ksem *ks; mtx_assert(&sem_lock, MA_OWNED); LIST_FOREACH(ks, &ksem_head, ks_entry) if (ks->ks_name != NULL && strcmp(ks->ks_name, name) == 0) return (ks); return (NULL); } static int sem_create(struct thread *td, const char *name, struct ksem **ksret, mode_t mode, unsigned int value) { struct ksem *ret; struct proc *p; struct ucred *uc; size_t len; int error; DP(("sem_create\n")); p = td->td_proc; uc = td->td_ucred; if (value > SEM_VALUE_MAX) return (EINVAL); ret = malloc(sizeof(*ret), M_SEM, M_WAITOK | M_ZERO); if (name != NULL) { len = strlen(name); if (len > SEM_MAX_NAMELEN) { free(ret, M_SEM); return (ENAMETOOLONG); } /* Name must start with a '/' but not contain one. */ if (*name != '/' || len < 2 || index(name + 1, '/') != NULL) { free(ret, M_SEM); return (EINVAL); } ret->ks_name = malloc(len + 1, M_SEM, M_WAITOK); strcpy(ret->ks_name, name); } else { ret->ks_name = NULL; } ret->ks_mode = mode; ret->ks_value = value; ret->ks_ref = 1; ret->ks_waiters = 0; ret->ks_uid = uc->cr_uid; ret->ks_gid = uc->cr_gid; ret->ks_onlist = 0; cv_init(&ret->ks_cv, "sem"); LIST_INIT(&ret->ks_users); #ifdef MAC mac_posixsem_init(ret); mac_posixsem_create(uc, ret); #endif if (name != NULL) sem_enter(td->td_proc, ret); *ksret = ret; mtx_lock(&sem_lock); nsems++; if (nsems > p31b_getcfg(CTL_P1003_1B_SEM_NSEMS_MAX)) { sem_leave(td->td_proc, ret); sem_free(ret); error = ENFILE; } else error = 0; mtx_unlock(&sem_lock); return (error); } #ifndef _SYS_SYSPROTO_H_ struct ksem_init_args { unsigned int value; semid_t *idp; }; int ksem_init(struct thread *td, struct ksem_init_args *uap); #endif int ksem_init(struct thread *td, struct ksem_init_args *uap) { return (kern_sem_init(td, UIO_USERSPACE, uap->value, uap->idp)); } static int kern_sem_init(struct thread *td, int dir, unsigned int value, semid_t *idp) { struct ksem *ks; semid_t id; int error; error = sem_create(td, NULL, &ks, S_IRWXU | S_IRWXG, value); if (error) return (error); id = SEM_TO_ID(ks); if (dir == UIO_USERSPACE) { error = copyout(&id, idp, sizeof(id)); if (error) { mtx_lock(&sem_lock); sem_rel(ks); mtx_unlock(&sem_lock); return (error); } } else { *idp = id; } mtx_lock(&sem_lock); LIST_INSERT_HEAD(&ksem_head, ks, ks_entry); ks->ks_onlist = 1; mtx_unlock(&sem_lock); return (error); } #ifndef _SYS_SYSPROTO_H_ struct ksem_open_args { char *name; int oflag; mode_t mode; unsigned int value; semid_t *idp; }; int ksem_open(struct thread *td, struct ksem_open_args *uap); #endif int ksem_open(struct thread *td, struct ksem_open_args *uap) { char name[SEM_MAX_NAMELEN + 1]; size_t done; int error; error = copyinstr(uap->name, name, SEM_MAX_NAMELEN + 1, &done); if (error) return (error); DP((">>> sem_open start\n")); error = kern_sem_open(td, UIO_USERSPACE, name, uap->oflag, uap->mode, uap->value, uap->idp); DP(("<<< sem_open end\n")); return (error); } static int kern_sem_open(struct thread *td, int dir, const char *name, int oflag, mode_t mode, unsigned int value, semid_t *idp) { struct ksem *ksnew, *ks; int error; semid_t id; ksnew = NULL; mtx_lock(&sem_lock); ks = sem_lookup_byname(name); /* * If we found it but O_EXCL is set, error. */ if (ks != NULL && (oflag & O_EXCL) != 0) { mtx_unlock(&sem_lock); return (EEXIST); } /* * If we didn't find it... */ if (ks == NULL) { /* * didn't ask for creation? error. */ if ((oflag & O_CREAT) == 0) { mtx_unlock(&sem_lock); return (ENOENT); } /* * We may block during creation, so drop the lock. */ mtx_unlock(&sem_lock); error = sem_create(td, name, &ksnew, mode, value); if (error != 0) return (error); id = SEM_TO_ID(ksnew); if (dir == UIO_USERSPACE) { DP(("about to copyout! %d to %p\n", id, idp)); error = copyout(&id, idp, sizeof(id)); if (error) { mtx_lock(&sem_lock); sem_leave(td->td_proc, ksnew); sem_rel(ksnew); mtx_unlock(&sem_lock); return (error); } } else { DP(("about to set! %d to %p\n", id, idp)); *idp = id; } /* * We need to make sure we haven't lost a race while * allocating during creation. */ mtx_lock(&sem_lock); ks = sem_lookup_byname(name); if (ks != NULL) { /* we lost... */ sem_leave(td->td_proc, ksnew); sem_rel(ksnew); /* we lost and we can't loose... */ if ((oflag & O_EXCL) != 0) { mtx_unlock(&sem_lock); return (EEXIST); } } else { DP(("sem_create: about to add to list...\n")); LIST_INSERT_HEAD(&ksem_head, ksnew, ks_entry); DP(("sem_create: setting list bit...\n")); ksnew->ks_onlist = 1; DP(("sem_create: done, about to unlock...\n")); } } else { #ifdef MAC error = mac_posixsem_check_open(td->td_ucred, ks); if (error) goto err_open; #endif /* * if we aren't the creator, then enforce permissions. */ error = sem_perm(td, ks); if (error) goto err_open; sem_ref(ks); mtx_unlock(&sem_lock); id = SEM_TO_ID(ks); if (dir == UIO_USERSPACE) { error = copyout(&id, idp, sizeof(id)); if (error) { mtx_lock(&sem_lock); sem_rel(ks); mtx_unlock(&sem_lock); return (error); } } else { *idp = id; } sem_enter(td->td_proc, ks); mtx_lock(&sem_lock); sem_rel(ks); } err_open: mtx_unlock(&sem_lock); return (error); } static int sem_perm(struct thread *td, struct ksem *ks) { struct ucred *uc; /* * XXXRW: This permission routine appears to be incorrect. If the * user matches, we shouldn't go on to the group if the user * permissions don't allow the action? Not changed for now. To fix, * change from a series of if (); if (); to if () else if () else... */ uc = td->td_ucred; DP(("sem_perm: uc(%d,%d) ks(%d,%d,%o)\n", uc->cr_uid, uc->cr_gid, ks->ks_uid, ks->ks_gid, ks->ks_mode)); if ((uc->cr_uid == ks->ks_uid) && (ks->ks_mode & S_IWUSR) != 0) return (0); if ((uc->cr_gid == ks->ks_gid) && (ks->ks_mode & S_IWGRP) != 0) return (0); if ((ks->ks_mode & S_IWOTH) != 0) return (0); return (priv_check(td, PRIV_SEM_WRITE)); } static void sem_free(struct ksem *ks) { #ifdef MAC mac_posixsem_destroy(ks); #endif nsems--; if (ks->ks_onlist) LIST_REMOVE(ks, ks_entry); if (ks->ks_name != NULL) free(ks->ks_name, M_SEM); cv_destroy(&ks->ks_cv); free(ks, M_SEM); } static __inline struct kuser * sem_getuser(struct proc *p, struct ksem *ks) { struct kuser *k; LIST_FOREACH(k, &ks->ks_users, ku_next) if (k->ku_pid == p->p_pid) return (k); return (NULL); } static int sem_hasopen(struct thread *td, struct ksem *ks) { return ((ks->ks_name == NULL && sem_perm(td, ks) == 0) || sem_getuser(td->td_proc, ks) != NULL); } static int sem_leave(struct proc *p, struct ksem *ks) { struct kuser *k; DP(("sem_leave: ks = %p\n", ks)); k = sem_getuser(p, ks); DP(("sem_leave: ks = %p, k = %p\n", ks, k)); if (k != NULL) { LIST_REMOVE(k, ku_next); sem_rel(ks); DP(("sem_leave: about to free k\n")); free(k, M_SEM); DP(("sem_leave: returning\n")); return (0); } return (EINVAL); } static void sem_enter(struct proc *p, struct ksem *ks) { struct kuser *ku, *k; ku = malloc(sizeof(*ku), M_SEM, M_WAITOK); ku->ku_pid = p->p_pid; mtx_lock(&sem_lock); k = sem_getuser(p, ks); if (k != NULL) { mtx_unlock(&sem_lock); free(ku, M_TEMP); return; } LIST_INSERT_HEAD(&ks->ks_users, ku, ku_next); sem_ref(ks); mtx_unlock(&sem_lock); } #ifndef _SYS_SYSPROTO_H_ struct ksem_unlink_args { char *name; }; int ksem_unlink(struct thread *td, struct ksem_unlink_args *uap); #endif int ksem_unlink(struct thread *td, struct ksem_unlink_args *uap) { char name[SEM_MAX_NAMELEN + 1]; size_t done; int error; error = copyinstr(uap->name, name, SEM_MAX_NAMELEN + 1, &done); return (error ? error : kern_sem_unlink(td, name)); } static int kern_sem_unlink(struct thread *td, const char *name) { struct ksem *ks; int error; mtx_lock(&sem_lock); ks = sem_lookup_byname(name); if (ks != NULL) { #ifdef MAC error = mac_posixsem_check_unlink(td->td_ucred, ks); if (error) { mtx_unlock(&sem_lock); return (error); } #endif error = sem_perm(td, ks); } else error = ENOENT; DP(("sem_unlink: '%s' ks = %p, error = %d\n", name, ks, error)); if (error == 0) { LIST_REMOVE(ks, ks_entry); LIST_INSERT_HEAD(&ksem_deadhead, ks, ks_entry); sem_rel(ks); } mtx_unlock(&sem_lock); return (error); } #ifndef _SYS_SYSPROTO_H_ struct ksem_close_args { semid_t id; }; int ksem_close(struct thread *td, struct ksem_close_args *uap); #endif int ksem_close(struct thread *td, struct ksem_close_args *uap) { return (kern_sem_close(td, uap->id)); } static int kern_sem_close(struct thread *td, semid_t id) { struct ksem *ks; int error; error = EINVAL; mtx_lock(&sem_lock); ks = ID_TO_SEM(id); /* * This is not a valid operation for unnamed sems. */ if (ks != NULL && ks->ks_name != NULL) error = sem_leave(td->td_proc, ks); mtx_unlock(&sem_lock); return (error); } #ifndef _SYS_SYSPROTO_H_ struct ksem_post_args { semid_t id; }; int ksem_post(struct thread *td, struct ksem_post_args *uap); #endif int ksem_post(struct thread *td, struct ksem_post_args *uap) { return (kern_sem_post(td, uap->id)); } static int kern_sem_post(struct thread *td, semid_t id) { struct ksem *ks; int error; mtx_lock(&sem_lock); ks = ID_TO_SEM(id); if (ks == NULL || !sem_hasopen(td, ks)) { error = EINVAL; goto err; } #ifdef MAC error = mac_posixsem_check_post(td->td_ucred, ks); if (error) goto err; #endif if (ks->ks_value == SEM_VALUE_MAX) { error = EOVERFLOW; goto err; } ++ks->ks_value; if (ks->ks_waiters > 0) cv_signal(&ks->ks_cv); error = 0; err: mtx_unlock(&sem_lock); return (error); } #ifndef _SYS_SYSPROTO_H_ struct ksem_wait_args { semid_t id; }; int ksem_wait(struct thread *td, struct ksem_wait_args *uap); #endif int ksem_wait(struct thread *td, struct ksem_wait_args *uap) { return (kern_sem_wait(td, uap->id, 0, NULL)); } #ifndef _SYS_SYSPROTO_H_ struct ksem_timedwait_args { semid_t id; const struct timespec *abstime; }; int ksem_timedwait(struct thread *td, struct ksem_timedwait_args *uap); #endif int ksem_timedwait(struct thread *td, struct ksem_timedwait_args *uap) { struct timespec abstime; struct timespec *ts; int error; /* * We allow a null timespec (wait forever). */ if (uap->abstime == NULL) ts = NULL; else { error = copyin(uap->abstime, &abstime, sizeof(abstime)); if (error != 0) return (error); if (abstime.tv_nsec >= 1000000000 || abstime.tv_nsec < 0) return (EINVAL); ts = &abstime; } return (kern_sem_wait(td, uap->id, 0, ts)); } #ifndef _SYS_SYSPROTO_H_ struct ksem_trywait_args { semid_t id; }; int ksem_trywait(struct thread *td, struct ksem_trywait_args *uap); #endif int ksem_trywait(struct thread *td, struct ksem_trywait_args *uap) { return (kern_sem_wait(td, uap->id, 1, NULL)); } static int kern_sem_wait(struct thread *td, semid_t id, int tryflag, struct timespec *abstime) { struct timespec ts1, ts2; struct timeval tv; struct ksem *ks; int error; DP((">>> kern_sem_wait entered!\n")); mtx_lock(&sem_lock); ks = ID_TO_SEM(id); if (ks == NULL) { DP(("kern_sem_wait ks == NULL\n")); error = EINVAL; goto err; } sem_ref(ks); if (!sem_hasopen(td, ks)) { DP(("kern_sem_wait hasopen failed\n")); error = EINVAL; goto err; } #ifdef MAC error = mac_posixsem_check_wait(td->td_ucred, ks); if (error) { DP(("kern_sem_wait mac failed\n")); goto err; } #endif DP(("kern_sem_wait value = %d, tryflag %d\n", ks->ks_value, tryflag)); if (ks->ks_value == 0) { ks->ks_waiters++; if (tryflag != 0) error = EAGAIN; else if (abstime == NULL) error = cv_wait_sig(&ks->ks_cv, &sem_lock); else { for (;;) { ts1 = *abstime; getnanotime(&ts2); timespecsub(&ts1, &ts2); TIMESPEC_TO_TIMEVAL(&tv, &ts1); if (tv.tv_sec < 0) { error = ETIMEDOUT; break; } error = cv_timedwait_sig(&ks->ks_cv, &sem_lock, tvtohz(&tv)); if (error != EWOULDBLOCK) break; } } ks->ks_waiters--; if (error) goto err; } ks->ks_value--; error = 0; err: if (ks != NULL) sem_rel(ks); mtx_unlock(&sem_lock); DP(("<<< kern_sem_wait leaving, error = %d\n", error)); return (error); } #ifndef _SYS_SYSPROTO_H_ struct ksem_getvalue_args { semid_t id; int *val; }; int ksem_getvalue(struct thread *td, struct ksem_getvalue_args *uap); #endif int ksem_getvalue(struct thread *td, struct ksem_getvalue_args *uap) { struct ksem *ks; int error, val; mtx_lock(&sem_lock); ks = ID_TO_SEM(uap->id); if (ks == NULL || !sem_hasopen(td, ks)) { mtx_unlock(&sem_lock); return (EINVAL); } #ifdef MAC error = mac_posixsem_check_getvalue(td->td_ucred, ks); if (error) { mtx_unlock(&sem_lock); return (error); } #endif val = ks->ks_value; mtx_unlock(&sem_lock); error = copyout(&val, uap->val, sizeof(val)); return (error); } #ifndef _SYS_SYSPROTO_H_ struct ksem_destroy_args { semid_t id; }; int ksem_destroy(struct thread *td, struct ksem_destroy_args *uap); #endif int ksem_destroy(struct thread *td, struct ksem_destroy_args *uap) { struct ksem *ks; int error; mtx_lock(&sem_lock); ks = ID_TO_SEM(uap->id); if (ks == NULL || !sem_hasopen(td, ks) || ks->ks_name != NULL) { error = EINVAL; goto err; } -#ifdef MAC - error = mac_posixsem_check_destroy(td->td_ucred, ks); - if (error) - goto err; -#endif if (ks->ks_waiters != 0) { error = EBUSY; goto err; } sem_rel(ks); error = 0; err: mtx_unlock(&sem_lock); return (error); } /* * Count the number of kusers associated with a proc, so as to guess at how * many to allocate when forking. */ static int sem_count_proc(struct proc *p) { struct ksem *ks; struct kuser *ku; int count; mtx_assert(&sem_lock, MA_OWNED); count = 0; LIST_FOREACH(ks, &ksem_head, ks_entry) { LIST_FOREACH(ku, &ks->ks_users, ku_next) { if (ku->ku_pid == p->p_pid) count++; } } LIST_FOREACH(ks, &ksem_deadhead, ks_entry) { LIST_FOREACH(ku, &ks->ks_users, ku_next) { if (ku->ku_pid == p->p_pid) count++; } } return (count); } /* * When a process forks, the child process must gain a reference to each open * semaphore in the parent process, whether it is unlinked or not. This * requires allocating a kuser structure for each semaphore reference in the * new process. Because the set of semaphores in the parent can change while * the fork is in progress, we have to handle races -- first we attempt to * allocate enough storage to acquire references to each of the semaphores, * then we enter the semaphores and release the temporary references. */ static void sem_forkhook(void *arg, struct proc *p1, struct proc *p2, int flags) { struct ksem *ks, **sem_array; int count, i, new_count; struct kuser *ku; mtx_lock(&sem_lock); count = sem_count_proc(p1); if (count == 0) { mtx_unlock(&sem_lock); return; } race_lost: mtx_assert(&sem_lock, MA_OWNED); mtx_unlock(&sem_lock); sem_array = malloc(sizeof(struct ksem *) * count, M_TEMP, M_WAITOK); mtx_lock(&sem_lock); new_count = sem_count_proc(p1); if (count < new_count) { /* Lost race, repeat and allocate more storage. */ free(sem_array, M_TEMP); count = new_count; goto race_lost; } /* * Given an array capable of storing an adequate number of semaphore * references, now walk the list of semaphores and acquire a new * reference for any semaphore opened by p1. */ count = new_count; i = 0; LIST_FOREACH(ks, &ksem_head, ks_entry) { LIST_FOREACH(ku, &ks->ks_users, ku_next) { if (ku->ku_pid == p1->p_pid) { sem_ref(ks); sem_array[i] = ks; i++; break; } } } LIST_FOREACH(ks, &ksem_deadhead, ks_entry) { LIST_FOREACH(ku, &ks->ks_users, ku_next) { if (ku->ku_pid == p1->p_pid) { sem_ref(ks); sem_array[i] = ks; i++; break; } } } mtx_unlock(&sem_lock); KASSERT(i == count, ("sem_forkhook: i != count (%d, %d)", i, count)); /* * Now cause p2 to enter each of the referenced semaphores, then * release our temporary reference. This is pretty inefficient. * Finally, free our temporary array. */ for (i = 0; i < count; i++) { sem_enter(p2, sem_array[i]); mtx_lock(&sem_lock); sem_rel(sem_array[i]); mtx_unlock(&sem_lock); } free(sem_array, M_TEMP); } static void sem_exechook(void *arg, struct proc *p, struct image_params *imgp __unused) { sem_exithook(arg, p); } static void sem_exithook(void *arg, struct proc *p) { struct ksem *ks, *ksnext; mtx_lock(&sem_lock); ks = LIST_FIRST(&ksem_head); while (ks != NULL) { ksnext = LIST_NEXT(ks, ks_entry); sem_leave(p, ks); ks = ksnext; } ks = LIST_FIRST(&ksem_deadhead); while (ks != NULL) { ksnext = LIST_NEXT(ks, ks_entry); sem_leave(p, ks); ks = ksnext; } mtx_unlock(&sem_lock); } static int sem_modload(struct module *module, int cmd, void *arg) { int error = 0; switch (cmd) { case MOD_LOAD: mtx_init(&sem_lock, "sem", "semaphore", MTX_DEF); p31b_setcfg(CTL_P1003_1B_SEM_NSEMS_MAX, SEM_MAX); p31b_setcfg(CTL_P1003_1B_SEM_VALUE_MAX, SEM_VALUE_MAX); sem_exit_tag = EVENTHANDLER_REGISTER(process_exit, sem_exithook, NULL, EVENTHANDLER_PRI_ANY); sem_exec_tag = EVENTHANDLER_REGISTER(process_exec, sem_exechook, NULL, EVENTHANDLER_PRI_ANY); sem_fork_tag = EVENTHANDLER_REGISTER(process_fork, sem_forkhook, NULL, EVENTHANDLER_PRI_ANY); break; case MOD_UNLOAD: if (nsems != 0) { error = EOPNOTSUPP; break; } EVENTHANDLER_DEREGISTER(process_exit, sem_exit_tag); EVENTHANDLER_DEREGISTER(process_exec, sem_exec_tag); EVENTHANDLER_DEREGISTER(process_fork, sem_fork_tag); mtx_destroy(&sem_lock); break; case MOD_SHUTDOWN: break; default: error = EINVAL; break; } return (error); } static moduledata_t sem_mod = { "sem", &sem_modload, NULL }; SYSCALL_MODULE_HELPER(ksem_init); SYSCALL_MODULE_HELPER(ksem_open); SYSCALL_MODULE_HELPER(ksem_unlink); SYSCALL_MODULE_HELPER(ksem_close); SYSCALL_MODULE_HELPER(ksem_post); SYSCALL_MODULE_HELPER(ksem_wait); SYSCALL_MODULE_HELPER(ksem_timedwait); SYSCALL_MODULE_HELPER(ksem_trywait); SYSCALL_MODULE_HELPER(ksem_getvalue); SYSCALL_MODULE_HELPER(ksem_destroy); DECLARE_MODULE(sem, sem_mod, SI_SUB_SYSV_SEM, SI_ORDER_FIRST); MODULE_VERSION(sem, 1); Index: head/sys/security/mac/mac_framework.h =================================================================== --- head/sys/security/mac/mac_framework.h (revision 179962) +++ head/sys/security/mac/mac_framework.h (revision 179963) @@ -1,434 +1,433 @@ /*- * Copyright (c) 1999-2002, 2007 Robert N. M. Watson * Copyright (c) 2001-2005 Networks Associates Technology, Inc. * Copyright (c) 2005-2006 SPARTA, Inc. * All rights reserved. * * This software was developed by Robert Watson for the TrustedBSD Project. * * This software was developed for the FreeBSD Project in part by Network * Associates Laboratories, the Security Research Division of Network * Associates, Inc. under DARPA/SPAWAR contract N66001-01-C-8035 ("CBOSS"), * as part of the DARPA CHATS research program. * * This software was enhanced by SPARTA ISSO under SPAWAR contract * N66001-04-C-6019 ("SEFOS"). * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * $FreeBSD$ */ /* * Kernel interface for Mandatory Access Control -- how kernel services * interact with the TrustedBSD MAC Framework. */ #ifndef _SECURITY_MAC_MAC_FRAMEWORK_H_ #define _SECURITY_MAC_MAC_FRAMEWORK_H_ #ifndef _KERNEL #error "no user-serviceable parts inside" #endif struct auditinfo; struct auditinfo_addr; struct bpf_d; struct cdev; struct componentname; struct devfs_dirent; struct ifnet; struct ifreq; struct image_params; struct inpcb; struct ipq; struct ksem; struct label; struct m_tag; struct mac; struct mbuf; struct mount; struct msg; struct msqid_kernel; struct proc; struct semid_kernel; struct shmfd; struct shmid_kernel; struct sockaddr; struct socket; struct sysctl_oid; struct sysctl_req; struct pipepair; struct thread; struct timespec; struct ucred; struct uio; struct vattr; struct vnode; struct vop_setlabel_args; #include /* XXX acl_type_t */ /* * Entry points to the TrustedBSD MAC Framework from the remainder of the * kernel: entry points are named based on a principle object type and an * action relating to it. They are sorted alphabetically first by object * type and then action. In some situations, the principle object type is * obvious, and in other cases, less so as multiple objects may be inolved * in the operation. */ int mac_bpfdesc_check_receive(struct bpf_d *d, struct ifnet *ifp); void mac_bpfdesc_create(struct ucred *cred, struct bpf_d *d); void mac_bpfdesc_create_mbuf(struct bpf_d *d, struct mbuf *m); void mac_bpfdesc_destroy(struct bpf_d *); void mac_bpfdesc_init(struct bpf_d *); int mac_cred_check_visible(struct ucred *cr1, struct ucred *cr2); void mac_cred_copy(struct ucred *cr1, struct ucred *cr2); void mac_cred_destroy(struct ucred *); void mac_cred_init(struct ucred *); void mac_devfs_create_device(struct ucred *cred, struct mount *mp, struct cdev *dev, struct devfs_dirent *de); void mac_devfs_create_directory(struct mount *mp, char *dirname, int dirnamelen, struct devfs_dirent *de); void mac_devfs_create_symlink(struct ucred *cred, struct mount *mp, struct devfs_dirent *dd, struct devfs_dirent *de); void mac_devfs_destroy(struct devfs_dirent *); void mac_devfs_init(struct devfs_dirent *); void mac_devfs_update(struct mount *mp, struct devfs_dirent *de, struct vnode *vp); void mac_devfs_vnode_associate(struct mount *mp, struct devfs_dirent *de, struct vnode *vp); int mac_ifnet_check_transmit(struct ifnet *ifp, struct mbuf *m); void mac_ifnet_create(struct ifnet *ifp); void mac_ifnet_create_mbuf(struct ifnet *ifp, struct mbuf *m); void mac_ifnet_destroy(struct ifnet *); void mac_ifnet_init(struct ifnet *); int mac_ifnet_ioctl_get(struct ucred *cred, struct ifreq *ifr, struct ifnet *ifp); int mac_ifnet_ioctl_set(struct ucred *cred, struct ifreq *ifr, struct ifnet *ifp); int mac_inpcb_check_deliver(struct inpcb *inp, struct mbuf *m); void mac_inpcb_create(struct socket *so, struct inpcb *inp); void mac_inpcb_create_mbuf(struct inpcb *inp, struct mbuf *m); void mac_inpcb_destroy(struct inpcb *); int mac_inpcb_init(struct inpcb *, int); void mac_inpcb_sosetlabel(struct socket *so, struct inpcb *inp); void mac_ipq_create(struct mbuf *m, struct ipq *q); void mac_ipq_destroy(struct ipq *q); int mac_ipq_init(struct ipq *q, int); int mac_ipq_match(struct mbuf *m, struct ipq *q); void mac_ipq_reassemble(struct ipq *q, struct mbuf *m); void mac_ipq_update(struct mbuf *m, struct ipq *q); int mac_kenv_check_dump(struct ucred *cred); int mac_kenv_check_get(struct ucred *cred, char *name); int mac_kenv_check_set(struct ucred *cred, char *name, char *value); int mac_kenv_check_unset(struct ucred *cred, char *name); int mac_kld_check_load(struct ucred *cred, struct vnode *vp); int mac_kld_check_stat(struct ucred *cred); void mac_mbuf_copy(struct mbuf *, struct mbuf *); int mac_mbuf_init(struct mbuf *, int); void mac_mbuf_tag_copy(struct m_tag *, struct m_tag *); void mac_mbuf_tag_destroy(struct m_tag *); int mac_mbuf_tag_init(struct m_tag *, int); int mac_mount_check_stat(struct ucred *cred, struct mount *mp); void mac_mount_create(struct ucred *cred, struct mount *mp); void mac_mount_destroy(struct mount *); void mac_mount_init(struct mount *); void mac_netatalk_aarp_send(struct ifnet *ifp, struct mbuf *m); void mac_netinet_arp_send(struct ifnet *ifp, struct mbuf *m); void mac_netinet_firewall_reply(struct mbuf *mrecv, struct mbuf *msend); void mac_netinet_firewall_send(struct mbuf *m); void mac_netinet_fragment(struct mbuf *m, struct mbuf *frag); void mac_netinet_icmp_reply(struct mbuf *mrecv, struct mbuf *msend); void mac_netinet_icmp_replyinplace(struct mbuf *m); void mac_netinet_igmp_send(struct ifnet *ifp, struct mbuf *m); void mac_netinet_tcp_reply(struct mbuf *m); void mac_netinet6_nd6_send(struct ifnet *ifp, struct mbuf *m); int mac_pipe_check_ioctl(struct ucred *cred, struct pipepair *pp, unsigned long cmd, void *data); int mac_pipe_check_poll(struct ucred *cred, struct pipepair *pp); int mac_pipe_check_read(struct ucred *cred, struct pipepair *pp); int mac_pipe_check_stat(struct ucred *cred, struct pipepair *pp); int mac_pipe_check_write(struct ucred *cred, struct pipepair *pp); void mac_pipe_create(struct ucred *cred, struct pipepair *pp); void mac_pipe_destroy(struct pipepair *); void mac_pipe_init(struct pipepair *); int mac_pipe_label_set(struct ucred *cred, struct pipepair *pp, struct label *label); -int mac_posixsem_check_destroy(struct ucred *cred, struct ksem *ks); int mac_posixsem_check_getvalue(struct ucred *cred,struct ksem *ks); int mac_posixsem_check_open(struct ucred *cred, struct ksem *ks); int mac_posixsem_check_post(struct ucred *cred, struct ksem *ks); int mac_posixsem_check_unlink(struct ucred *cred, struct ksem *ks); int mac_posixsem_check_wait(struct ucred *cred, struct ksem *ks); void mac_posixsem_create(struct ucred *cred, struct ksem *ks); void mac_posixsem_destroy(struct ksem *); void mac_posixsem_init(struct ksem *); int mac_posixshm_check_mmap(struct ucred *cred, struct shmfd *shmfd, int prot, int flags); int mac_posixshm_check_open(struct ucred *cred, struct shmfd *shmfd); int mac_posixshm_check_stat(struct ucred *active_cred, struct ucred *file_cred, struct shmfd *shmfd); int mac_posixshm_check_truncate(struct ucred *active_cred, struct ucred *file_cred, struct shmfd *shmfd); int mac_posixshm_check_unlink(struct ucred *cred, struct shmfd *shmfd); void mac_posixshm_create(struct ucred *cred, struct shmfd *shmfd); void mac_posixshm_destroy(struct shmfd *); void mac_posixshm_init(struct shmfd *); int mac_priv_check(struct ucred *cred, int priv); int mac_priv_grant(struct ucred *cred, int priv); void mac_proc_associate_nfsd(struct ucred *cred); int mac_proc_check_debug(struct ucred *cred, struct proc *p); int mac_proc_check_sched(struct ucred *cred, struct proc *p); int mac_proc_check_setaudit(struct ucred *cred, struct auditinfo *ai); int mac_proc_check_setaudit_addr(struct ucred *cred, struct auditinfo_addr *aia); int mac_proc_check_setauid(struct ucred *cred, uid_t auid); int mac_proc_check_setegid(struct proc *p, struct ucred *cred, gid_t egid); int mac_proc_check_seteuid(struct proc *p, struct ucred *cred, uid_t euid); int mac_proc_check_setgid(struct proc *p, struct ucred *cred, gid_t gid); int mac_proc_check_setgroups(struct proc *p, struct ucred *cred, int ngroups, gid_t *gidset); int mac_proc_check_setregid(struct proc *p, struct ucred *cred, gid_t rgid, gid_t egid); int mac_proc_check_setresgid(struct proc *p, struct ucred *cred, gid_t rgid, gid_t egid, gid_t sgid); int mac_proc_check_setresuid(struct proc *p, struct ucred *cred, uid_t ruid, uid_t euid, uid_t suid); int mac_proc_check_setreuid(struct proc *p, struct ucred *cred, uid_t ruid, uid_t euid); int mac_proc_check_setuid(struct proc *p, struct ucred *cred, uid_t uid); int mac_proc_check_signal(struct ucred *cred, struct proc *p, int signum); int mac_proc_check_wait(struct ucred *cred, struct proc *p); void mac_proc_create_init(struct ucred *cred); void mac_proc_create_swapper(struct ucred *cred); void mac_proc_destroy(struct proc *); int mac_execve_enter(struct image_params *imgp, struct mac *mac_p); void mac_execve_exit(struct image_params *imgp); void mac_proc_init(struct proc *); int mac_socket_check_accept(struct ucred *cred, struct socket *so); int mac_socket_check_bind(struct ucred *cred, struct socket *so, struct sockaddr *sa); int mac_socket_check_connect(struct ucred *cred, struct socket *so, struct sockaddr *sa); int mac_socket_check_create(struct ucred *cred, int domain, int type, int proto); int mac_socket_check_deliver(struct socket *so, struct mbuf *m); int mac_socket_check_listen(struct ucred *cred, struct socket *so); int mac_socket_check_poll(struct ucred *cred, struct socket *so); int mac_socket_check_receive(struct ucred *cred, struct socket *so); int mac_socket_check_send(struct ucred *cred, struct socket *so); int mac_socket_check_stat(struct ucred *cred, struct socket *so); int mac_socket_check_visible(struct ucred *cred, struct socket *so); void mac_socket_create_mbuf(struct socket *so, struct mbuf *m); void mac_socket_create(struct ucred *cred, struct socket *so); void mac_socket_destroy(struct socket *); int mac_socket_init(struct socket *, int); void mac_socket_newconn(struct socket *oldso, struct socket *newso); int mac_getsockopt_label(struct ucred *cred, struct socket *so, struct mac *extmac); int mac_getsockopt_peerlabel(struct ucred *cred, struct socket *so, struct mac *extmac); int mac_setsockopt_label(struct ucred *cred, struct socket *so, struct mac *extmac); void mac_socketpeer_set_from_mbuf(struct mbuf *m, struct socket *so); void mac_socketpeer_set_from_socket(struct socket *oldso, struct socket *newso); void mac_syncache_create(struct label *l, struct inpcb *inp); void mac_syncache_create_mbuf(struct label *l, struct mbuf *m); void mac_syncache_destroy(struct label **l); int mac_syncache_init(struct label **l); int mac_system_check_acct(struct ucred *cred, struct vnode *vp); int mac_system_check_audit(struct ucred *cred, void *record, int length); int mac_system_check_auditctl(struct ucred *cred, struct vnode *vp); int mac_system_check_auditon(struct ucred *cred, int cmd); int mac_system_check_reboot(struct ucred *cred, int howto); int mac_system_check_swapon(struct ucred *cred, struct vnode *vp); int mac_system_check_swapoff(struct ucred *cred, struct vnode *vp); int mac_system_check_sysctl(struct ucred *cred, struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req); void mac_sysvmsg_cleanup(struct msg *msgptr); void mac_sysvmsg_create(struct ucred *cred, struct msqid_kernel *msqkptr, struct msg *msgptr); void mac_sysvmsg_destroy(struct msg *); void mac_sysvmsg_init(struct msg *); int mac_sysvmsq_check_msgmsq(struct ucred *cred, struct msg *msgptr, struct msqid_kernel *msqkptr); int mac_sysvmsq_check_msgrcv(struct ucred *cred, struct msg *msgptr); int mac_sysvmsq_check_msgrmid(struct ucred *cred, struct msg *msgptr); int mac_sysvmsq_check_msqctl(struct ucred *cred, struct msqid_kernel *msqkptr, int cmd); int mac_sysvmsq_check_msqget(struct ucred *cred, struct msqid_kernel *msqkptr); int mac_sysvmsq_check_msqrcv(struct ucred *cred, struct msqid_kernel *msqkptr); int mac_sysvmsq_check_msqsnd(struct ucred *cred, struct msqid_kernel *msqkptr); void mac_sysvmsq_cleanup(struct msqid_kernel *msqkptr); void mac_sysvmsq_create(struct ucred *cred, struct msqid_kernel *msqkptr); void mac_sysvmsq_destroy(struct msqid_kernel *); void mac_sysvmsq_init(struct msqid_kernel *); int mac_sysvsem_check_semctl(struct ucred *cred, struct semid_kernel *semakptr, int cmd); int mac_sysvsem_check_semget(struct ucred *cred, struct semid_kernel *semakptr); int mac_sysvsem_check_semop(struct ucred *cred, struct semid_kernel *semakptr, size_t accesstype); void mac_sysvsem_cleanup(struct semid_kernel *semakptr); void mac_sysvsem_create(struct ucred *cred, struct semid_kernel *semakptr); void mac_sysvsem_destroy(struct semid_kernel *); void mac_sysvsem_init(struct semid_kernel *); int mac_sysvshm_check_shmat(struct ucred *cred, struct shmid_kernel *shmsegptr, int shmflg); int mac_sysvshm_check_shmctl(struct ucred *cred, struct shmid_kernel *shmsegptr, int cmd); int mac_sysvshm_check_shmdt(struct ucred *cred, struct shmid_kernel *shmsegptr); int mac_sysvshm_check_shmget(struct ucred *cred, struct shmid_kernel *shmsegptr, int shmflg); void mac_sysvshm_cleanup(struct shmid_kernel *shmsegptr); void mac_sysvshm_create(struct ucred *cred, struct shmid_kernel *shmsegptr); void mac_sysvshm_destroy(struct shmid_kernel *); void mac_sysvshm_init(struct shmid_kernel *); void mac_thread_userret(struct thread *td); int mac_vnode_associate_extattr(struct mount *mp, struct vnode *vp); void mac_vnode_associate_singlelabel(struct mount *mp, struct vnode *vp); int mac_vnode_check_access(struct ucred *cred, struct vnode *vp, int acc_mode); int mac_vnode_check_chdir(struct ucred *cred, struct vnode *dvp); int mac_vnode_check_chroot(struct ucred *cred, struct vnode *dvp); int mac_vnode_check_create(struct ucred *cred, struct vnode *dvp, struct componentname *cnp, struct vattr *vap); int mac_vnode_check_deleteacl(struct ucred *cred, struct vnode *vp, acl_type_t type); int mac_vnode_check_deleteextattr(struct ucred *cred, struct vnode *vp, int attrnamespace, const char *name); int mac_vnode_check_exec(struct ucred *cred, struct vnode *vp, struct image_params *imgp); int mac_vnode_check_getacl(struct ucred *cred, struct vnode *vp, acl_type_t type); int mac_vnode_check_getextattr(struct ucred *cred, struct vnode *vp, int attrnamespace, const char *name, struct uio *uio); int mac_vnode_check_link(struct ucred *cred, struct vnode *dvp, struct vnode *vp, struct componentname *cnp); int mac_vnode_check_listextattr(struct ucred *cred, struct vnode *vp, int attrnamespace); int mac_vnode_check_lookup(struct ucred *cred, struct vnode *dvp, struct componentname *cnp); int mac_vnode_check_mmap(struct ucred *cred, struct vnode *vp, int prot, int flags); int mac_vnode_check_mprotect(struct ucred *cred, struct vnode *vp, int prot); int mac_vnode_check_open(struct ucred *cred, struct vnode *vp, int acc_mode); int mac_vnode_check_poll(struct ucred *active_cred, struct ucred *file_cred, struct vnode *vp); int mac_vnode_check_read(struct ucred *active_cred, struct ucred *file_cred, struct vnode *vp); int mac_vnode_check_readdir(struct ucred *cred, struct vnode *vp); int mac_vnode_check_readlink(struct ucred *cred, struct vnode *vp); int mac_vnode_check_rename_from(struct ucred *cred, struct vnode *dvp, struct vnode *vp, struct componentname *cnp); int mac_vnode_check_rename_to(struct ucred *cred, struct vnode *dvp, struct vnode *vp, int samedir, struct componentname *cnp); int mac_vnode_check_revoke(struct ucred *cred, struct vnode *vp); int mac_vnode_check_setacl(struct ucred *cred, struct vnode *vp, acl_type_t type, struct acl *acl); int mac_vnode_check_setextattr(struct ucred *cred, struct vnode *vp, int attrnamespace, const char *name, struct uio *uio); int mac_vnode_check_setflags(struct ucred *cred, struct vnode *vp, u_long flags); int mac_vnode_check_setmode(struct ucred *cred, struct vnode *vp, mode_t mode); int mac_vnode_check_setowner(struct ucred *cred, struct vnode *vp, uid_t uid, gid_t gid); int mac_vnode_check_setutimes(struct ucred *cred, struct vnode *vp, struct timespec atime, struct timespec mtime); int mac_vnode_check_stat(struct ucred *active_cred, struct ucred *file_cred, struct vnode *vp); int mac_vnode_check_unlink(struct ucred *cred, struct vnode *dvp, struct vnode *vp, struct componentname *cnp); int mac_vnode_check_write(struct ucred *active_cred, struct ucred *file_cred, struct vnode *vp); void mac_vnode_copy_label(struct label *, struct label *); void mac_vnode_init(struct vnode *); int mac_vnode_create_extattr(struct ucred *cred, struct mount *mp, struct vnode *dvp, struct vnode *vp, struct componentname *cnp); void mac_vnode_destroy(struct vnode *); void mac_vnode_execve_transition(struct ucred *oldcred, struct ucred *newcred, struct vnode *vp, struct label *interpvplabel, struct image_params *imgp); int mac_vnode_execve_will_transition(struct ucred *cred, struct vnode *vp, struct label *interpvplabel, struct image_params *imgp); void mac_vnode_relabel(struct ucred *cred, struct vnode *vp, struct label *newlabel); struct label *mac_cred_label_alloc(void); void mac_cred_label_free(struct label *); struct label *mac_vnode_label_alloc(void); void mac_vnode_label_free(struct label *); void mac_cred_mmapped_drop_perms(struct thread *td, struct ucred *cred); /* * Calls to help various file systems implement labeling functionality using * their existing EA implementation. */ int vop_stdsetlabel_ea(struct vop_setlabel_args *ap); #endif /* !_SECURITY_MAC_MAC_FRAMEWORK_H_ */ Index: head/sys/security/mac/mac_policy.h =================================================================== --- head/sys/security/mac/mac_policy.h (revision 179962) +++ head/sys/security/mac/mac_policy.h (revision 179963) @@ -1,983 +1,980 @@ /*- * Copyright (c) 1999-2002, 2007 Robert N. M. Watson * Copyright (c) 2001-2005 Networks Associates Technology, Inc. * Copyright (c) 2005-2006 SPARTA, Inc. * All rights reserved. * * This software was developed by Robert Watson for the TrustedBSD Project. * * This software was developed for the FreeBSD Project in part by Network * Associates Laboratories, the Security Research Division of Network * Associates, Inc. under DARPA/SPAWAR contract N66001-01-C-8035 ("CBOSS"), * as part of the DARPA CHATS research program. * * This software was enhanced by SPARTA ISSO under SPAWAR contract * N66001-04-C-6019 ("SEFOS"). * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * $FreeBSD$ */ /* * Kernel interface for MAC policy modules. */ #ifndef _SECURITY_MAC_MAC_POLICY_H_ #define _SECURITY_MAC_MAC_POLICY_H_ #ifndef _KERNEL #error "no user-serviceable parts inside" #endif /*- * Pluggable access control policy definition structure. * * List of operations that are performed as part of the implementation of a * MAC policy. Policy implementors declare operations with a mac_policy_ops * structure, and using the MAC_POLICY_SET() macro. If an entry point is not * declared, then then the policy will be ignored during evaluation of that * event or check. * * Operations are sorted first by general class of operation, then * alphabetically. */ #include /* XXX acl_type_t */ struct acl; struct auditinfo; struct auditinfo_addr; struct bpf_d; struct cdev; struct componentname; struct devfs_dirent; struct ifnet; struct image_params; struct inpcb; struct ipq; struct ksem; struct label; struct mac_policy_conf; struct mbuf; struct mount; struct msg; struct msqid_kernel; struct pipepair; struct proc; struct sbuf; struct semid_kernel; struct shmfd; struct shmid_kernel; struct sockaddr; struct socket; struct sysctl_oid; struct sysctl_req; struct thread; struct ucred; struct uio; struct vattr; struct vnode; /* * Policy module operations. */ typedef void (*mpo_destroy_t)(struct mac_policy_conf *mpc); typedef void (*mpo_init_t)(struct mac_policy_conf *mpc); /* * General policy-directed security system call so that policies may * implement new services without reserving explicit system call numbers. */ typedef int (*mpo_syscall_t)(struct thread *td, int call, void *arg); /* * Place-holder function pointers for ABI-compatibility purposes. */ typedef void (*mpo_placeholder_t)(void); /* * Operations sorted alphabetically by primary object type and then method. */ typedef int (*mpo_bpfdesc_check_receive_t)(struct bpf_d *d, struct label *dlabel, struct ifnet *ifp, struct label *ifplabel); typedef void (*mpo_bpfdesc_create_t)(struct ucred *cred, struct bpf_d *d, struct label *dlabel); typedef void (*mpo_bpfdesc_create_mbuf_t)(struct bpf_d *d, struct label *dlabel, struct mbuf *m, struct label *mlabel); typedef void (*mpo_bpfdesc_destroy_label_t)(struct label *label); typedef void (*mpo_bpfdesc_init_label_t)(struct label *label); typedef int (*mpo_cred_check_relabel_t)(struct ucred *cred, struct label *newlabel); typedef int (*mpo_cred_check_visible_t)(struct ucred *cr1, struct ucred *cr2); typedef void (*mpo_cred_copy_label_t)(struct label *src, struct label *dest); typedef void (*mpo_cred_destroy_label_t)(struct label *label); typedef int (*mpo_cred_externalize_label_t)(struct label *label, char *element_name, struct sbuf *sb, int *claimed); typedef void (*mpo_cred_init_label_t)(struct label *label); typedef int (*mpo_cred_internalize_label_t)(struct label *label, char *element_name, char *element_data, int *claimed); typedef void (*mpo_cred_relabel_t)(struct ucred *cred, struct label *newlabel); typedef void (*mpo_devfs_create_device_t)(struct ucred *cred, struct mount *mp, struct cdev *dev, struct devfs_dirent *de, struct label *delabel); typedef void (*mpo_devfs_create_directory_t)(struct mount *mp, char *dirname, int dirnamelen, struct devfs_dirent *de, struct label *delabel); typedef void (*mpo_devfs_create_symlink_t)(struct ucred *cred, struct mount *mp, struct devfs_dirent *dd, struct label *ddlabel, struct devfs_dirent *de, struct label *delabel); typedef void (*mpo_devfs_destroy_label_t)(struct label *label); typedef void (*mpo_devfs_init_label_t)(struct label *label); typedef void (*mpo_devfs_update_t)(struct mount *mp, struct devfs_dirent *de, struct label *delabel, struct vnode *vp, struct label *vplabel); typedef void (*mpo_devfs_vnode_associate_t)(struct mount *mp, struct label *mplabel, struct devfs_dirent *de, struct label *delabel, struct vnode *vp, struct label *vplabel); typedef int (*mpo_ifnet_check_relabel_t)(struct ucred *cred, struct ifnet *ifp, struct label *ifplabel, struct label *newlabel); typedef int (*mpo_ifnet_check_transmit_t)(struct ifnet *ifp, struct label *ifplabel, struct mbuf *m, struct label *mlabel); typedef void (*mpo_ifnet_copy_label_t)(struct label *src, struct label *dest); typedef void (*mpo_ifnet_create_t)(struct ifnet *ifp, struct label *ifplabel); typedef void (*mpo_ifnet_create_mbuf_t)(struct ifnet *ifp, struct label *ifplabel, struct mbuf *m, struct label *mlabel); typedef void (*mpo_ifnet_destroy_label_t)(struct label *label); typedef int (*mpo_ifnet_externalize_label_t)(struct label *label, char *element_name, struct sbuf *sb, int *claimed); typedef void (*mpo_ifnet_init_label_t)(struct label *label); typedef int (*mpo_ifnet_internalize_label_t)(struct label *label, char *element_name, char *element_data, int *claimed); typedef void (*mpo_ifnet_relabel_t)(struct ucred *cred, struct ifnet *ifp, struct label *ifplabel, struct label *newlabel); typedef int (*mpo_inpcb_check_deliver_t)(struct inpcb *inp, struct label *inplabel, struct mbuf *m, struct label *mlabel); typedef void (*mpo_inpcb_create_t)(struct socket *so, struct label *solabel, struct inpcb *inp, struct label *inplabel); typedef void (*mpo_inpcb_create_mbuf_t)(struct inpcb *inp, struct label *inplabel, struct mbuf *m, struct label *mlabel); typedef void (*mpo_inpcb_destroy_label_t)(struct label *label); typedef int (*mpo_inpcb_init_label_t)(struct label *label, int flag); typedef void (*mpo_inpcb_sosetlabel_t)(struct socket *so, struct label *label, struct inpcb *inp, struct label *inplabel); typedef void (*mpo_ipq_create_t)(struct mbuf *m, struct label *mlabel, struct ipq *q, struct label *qlabel); typedef void (*mpo_ipq_destroy_label_t)(struct label *label); typedef int (*mpo_ipq_init_label_t)(struct label *label, int flag); typedef int (*mpo_ipq_match_t)(struct mbuf *m, struct label *mlabel, struct ipq *q, struct label *qlabel); typedef void (*mpo_ipq_reassemble)(struct ipq *q, struct label *qlabel, struct mbuf *m, struct label *mlabel); typedef void (*mpo_ipq_update_t)(struct mbuf *m, struct label *mlabel, struct ipq *q, struct label *qlabel); typedef int (*mpo_kenv_check_dump_t)(struct ucred *cred); typedef int (*mpo_kenv_check_get_t)(struct ucred *cred, char *name); typedef int (*mpo_kenv_check_set_t)(struct ucred *cred, char *name, char *value); typedef int (*mpo_kenv_check_unset_t)(struct ucred *cred, char *name); typedef int (*mpo_kld_check_load_t)(struct ucred *cred, struct vnode *vp, struct label *vplabel); typedef int (*mpo_kld_check_stat_t)(struct ucred *cred); typedef void (*mpo_mbuf_copy_label_t)(struct label *src, struct label *dest); typedef void (*mpo_mbuf_destroy_label_t)(struct label *label); typedef int (*mpo_mbuf_init_label_t)(struct label *label, int flag); typedef int (*mpo_mount_check_stat_t)(struct ucred *cred, struct mount *mp, struct label *mplabel); typedef void (*mpo_mount_create_t)(struct ucred *cred, struct mount *mp, struct label *mplabel); typedef void (*mpo_mount_destroy_label_t)(struct label *label); typedef void (*mpo_mount_init_label_t)(struct label *label); typedef void (*mpo_netatalk_aarp_send_t)(struct ifnet *ifp, struct label *ifplabel, struct mbuf *m, struct label *mlabel); typedef void (*mpo_netinet_arp_send_t)(struct ifnet *ifp, struct label *ifplabel, struct mbuf *m, struct label *mlabel); typedef void (*mpo_netinet_firewall_reply_t)(struct mbuf *mrecv, struct label *mrecvlabel, struct mbuf *msend, struct label *msendlabel); typedef void (*mpo_netinet_firewall_send_t)(struct mbuf *m, struct label *mlabel); typedef void (*mpo_netinet_fragment_t)(struct mbuf *m, struct label *mlabel, struct mbuf *frag, struct label *fraglabel); typedef void (*mpo_netinet_icmp_reply_t)(struct mbuf *mrecv, struct label *mrecvlabel, struct mbuf *msend, struct label *msendlabel); typedef void (*mpo_netinet_icmp_replyinplace_t)(struct mbuf *m, struct label *mlabel); typedef void (*mpo_netinet_igmp_send_t)(struct ifnet *ifp, struct label *ifplabel, struct mbuf *m, struct label *mlabel); typedef void (*mpo_netinet_tcp_reply_t)(struct mbuf *m, struct label *mlabel); typedef void (*mpo_netinet6_nd6_send_t)(struct ifnet *ifp, struct label *ifplabel, struct mbuf *m, struct label *mlabel); typedef int (*mpo_pipe_check_ioctl_t)(struct ucred *cred, struct pipepair *pp, struct label *pplabel, unsigned long cmd, void *data); typedef int (*mpo_pipe_check_poll_t)(struct ucred *cred, struct pipepair *pp, struct label *pplabel); typedef int (*mpo_pipe_check_read_t)(struct ucred *cred, struct pipepair *pp, struct label *pplabel); typedef int (*mpo_pipe_check_relabel_t)(struct ucred *cred, struct pipepair *pp, struct label *pplabel, struct label *newlabel); typedef int (*mpo_pipe_check_stat_t)(struct ucred *cred, struct pipepair *pp, struct label *pplabel); typedef int (*mpo_pipe_check_write_t)(struct ucred *cred, struct pipepair *pp, struct label *pplabel); typedef void (*mpo_pipe_copy_label_t)(struct label *src, struct label *dest); typedef void (*mpo_pipe_create_t)(struct ucred *cred, struct pipepair *pp, struct label *pplabel); typedef void (*mpo_pipe_destroy_label_t)(struct label *label); typedef int (*mpo_pipe_externalize_label_t)(struct label *label, char *element_name, struct sbuf *sb, int *claimed); typedef void (*mpo_pipe_init_label_t)(struct label *label); typedef int (*mpo_pipe_internalize_label_t)(struct label *label, char *element_name, char *element_data, int *claimed); typedef void (*mpo_pipe_relabel_t)(struct ucred *cred, struct pipepair *pp, struct label *oldlabel, struct label *newlabel); -typedef int (*mpo_posixsem_check_destroy_t)(struct ucred *cred, - struct ksem *ks, struct label *kslabel); typedef int (*mpo_posixsem_check_getvalue_t)(struct ucred *cred, struct ksem *ks, struct label *kslabel); typedef int (*mpo_posixsem_check_open_t)(struct ucred *cred, struct ksem *ks, struct label *kslabel); typedef int (*mpo_posixsem_check_post_t)(struct ucred *cred, struct ksem *ks, struct label *kslabel); typedef int (*mpo_posixsem_check_unlink_t)(struct ucred *cred, struct ksem *ks, struct label *kslabel); typedef int (*mpo_posixsem_check_wait_t)(struct ucred *cred, struct ksem *ks, struct label *kslabel); typedef void (*mpo_posixsem_create_t)(struct ucred *cred, struct ksem *ks, struct label *kslabel); typedef void (*mpo_posixsem_destroy_label_t)(struct label *label); typedef void (*mpo_posixsem_init_label_t)(struct label *label); typedef int (*mpo_posixshm_check_mmap_t)(struct ucred *cred, struct shmfd *shmfd, struct label *shmlabel, int prot, int flags); typedef int (*mpo_posixshm_check_open_t)(struct ucred *cred, struct shmfd *shmfd, struct label *shmlabel); typedef int (*mpo_posixshm_check_stat_t)(struct ucred *active_cred, struct ucred *file_cred, struct shmfd *shmfd, struct label *shmlabel); typedef int (*mpo_posixshm_check_truncate_t)(struct ucred *active_cred, struct ucred *file_cred, struct shmfd *shmfd, struct label *shmlabel); typedef int (*mpo_posixshm_check_unlink_t)(struct ucred *cred, struct shmfd *shmfd, struct label *shmlabel); typedef void (*mpo_posixshm_create_t)(struct ucred *cred, struct shmfd *shmfd, struct label *shmlabel); typedef void (*mpo_posixshm_destroy_label_t)(struct label *label); typedef void (*mpo_posixshm_init_label_t)(struct label *label); typedef int (*mpo_priv_check_t)(struct ucred *cred, int priv); typedef int (*mpo_priv_grant_t)(struct ucred *cred, int priv); typedef void (*mpo_proc_associate_nfsd_t)(struct ucred *cred); typedef int (*mpo_proc_check_debug_t)(struct ucred *cred, struct proc *p); typedef int (*mpo_proc_check_sched_t)(struct ucred *cred, struct proc *p); typedef int (*mpo_proc_check_setaudit_t)(struct ucred *cred, struct auditinfo *ai); typedef int (*mpo_proc_check_setaudit_addr_t)(struct ucred *cred, struct auditinfo_addr *aia); typedef int (*mpo_proc_check_setauid_t)(struct ucred *cred, uid_t auid); typedef int (*mpo_proc_check_setegid_t)(struct ucred *cred, gid_t egid); typedef int (*mpo_proc_check_seteuid_t)(struct ucred *cred, uid_t euid); typedef int (*mpo_proc_check_setgid_t)(struct ucred *cred, gid_t gid); typedef int (*mpo_proc_check_setgroups_t)(struct ucred *cred, int ngroups, gid_t *gidset); typedef int (*mpo_proc_check_setregid_t)(struct ucred *cred, gid_t rgid, gid_t egid); typedef int (*mpo_proc_check_setresgid_t)(struct ucred *cred, gid_t rgid, gid_t egid, gid_t sgid); typedef int (*mpo_proc_check_setresuid_t)(struct ucred *cred, uid_t ruid, uid_t euid, uid_t suid); typedef int (*mpo_proc_check_setreuid_t)(struct ucred *cred, uid_t ruid, uid_t euid); typedef int (*mpo_proc_check_setuid_t)(struct ucred *cred, uid_t uid); typedef int (*mpo_proc_check_signal_t)(struct ucred *cred, struct proc *proc, int signum); typedef int (*mpo_proc_check_wait_t)(struct ucred *cred, struct proc *proc); typedef void (*mpo_proc_create_init_t)(struct ucred *cred); typedef void (*mpo_proc_create_swapper_t)(struct ucred *cred); typedef void (*mpo_proc_destroy_label_t)(struct label *label); typedef void (*mpo_proc_init_label_t)(struct label *label); typedef int (*mpo_socket_check_accept_t)(struct ucred *cred, struct socket *so, struct label *solabel); typedef int (*mpo_socket_check_bind_t)(struct ucred *cred, struct socket *so, struct label *solabel, struct sockaddr *sa); typedef int (*mpo_socket_check_connect_t)(struct ucred *cred, struct socket *so, struct label *solabel, struct sockaddr *sa); typedef int (*mpo_socket_check_create_t)(struct ucred *cred, int domain, int type, int protocol); typedef int (*mpo_socket_check_deliver_t)(struct socket *so, struct label *solabel, struct mbuf *m, struct label *mlabel); typedef int (*mpo_socket_check_listen_t)(struct ucred *cred, struct socket *so, struct label *solabel); typedef int (*mpo_socket_check_poll_t)(struct ucred *cred, struct socket *so, struct label *solabel); typedef int (*mpo_socket_check_receive_t)(struct ucred *cred, struct socket *so, struct label *solabel); typedef int (*mpo_socket_check_relabel_t)(struct ucred *cred, struct socket *so, struct label *solabel, struct label *newlabel); typedef int (*mpo_socket_check_send_t)(struct ucred *cred, struct socket *so, struct label *solabel); typedef int (*mpo_socket_check_stat_t)(struct ucred *cred, struct socket *so, struct label *solabel); typedef int (*mpo_socket_check_visible_t)(struct ucred *cred, struct socket *so, struct label *solabel); typedef void (*mpo_socket_copy_label_t)(struct label *src, struct label *dest); typedef void (*mpo_socket_create_t)(struct ucred *cred, struct socket *so, struct label *solabel); typedef void (*mpo_socket_create_mbuf_t)(struct socket *so, struct label *solabel, struct mbuf *m, struct label *mlabel); typedef void (*mpo_socket_destroy_label_t)(struct label *label); typedef int (*mpo_socket_externalize_label_t)(struct label *label, char *element_name, struct sbuf *sb, int *claimed); typedef int (*mpo_socket_init_label_t)(struct label *label, int flag); typedef int (*mpo_socket_internalize_label_t)(struct label *label, char *element_name, char *element_data, int *claimed); typedef void (*mpo_socket_newconn_t)(struct socket *oldso, struct label *oldsolabel, struct socket *newso, struct label *newsolabel); typedef void (*mpo_socket_relabel_t)(struct ucred *cred, struct socket *so, struct label *oldlabel, struct label *newlabel); typedef void (*mpo_socketpeer_destroy_label_t)(struct label *label); typedef int (*mpo_socketpeer_externalize_label_t)(struct label *label, char *element_name, struct sbuf *sb, int *claimed); typedef int (*mpo_socketpeer_init_label_t)(struct label *label, int flag); typedef void (*mpo_socketpeer_set_from_mbuf_t)(struct mbuf *m, struct label *mlabel, struct socket *so, struct label *sopeerlabel); typedef void (*mpo_socketpeer_set_from_socket_t)(struct socket *oldso, struct label *oldsolabel, struct socket *newso, struct label *newsopeerlabel); typedef void (*mpo_syncache_create_t)(struct label *label, struct inpcb *inp); typedef void (*mpo_syncache_create_mbuf_t)(struct label *sc_label, struct mbuf *m, struct label *mlabel); typedef void (*mpo_syncache_destroy_label_t)(struct label *label); typedef int (*mpo_syncache_init_label_t)(struct label *label, int flag); typedef int (*mpo_system_check_acct_t)(struct ucred *cred, struct vnode *vp, struct label *vplabel); typedef int (*mpo_system_check_audit_t)(struct ucred *cred, void *record, int length); typedef int (*mpo_system_check_auditctl_t)(struct ucred *cred, struct vnode *vp, struct label *vplabel); typedef int (*mpo_system_check_auditon_t)(struct ucred *cred, int cmd); typedef int (*mpo_system_check_reboot_t)(struct ucred *cred, int howto); typedef int (*mpo_system_check_swapon_t)(struct ucred *cred, struct vnode *vp, struct label *vplabel); typedef int (*mpo_system_check_swapoff_t)(struct ucred *cred, struct vnode *vp, struct label *vplabel); typedef int (*mpo_system_check_sysctl_t)(struct ucred *cred, struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req); typedef void (*mpo_sysvmsg_cleanup_t)(struct label *msglabel); typedef void (*mpo_sysvmsg_create_t)(struct ucred *cred, struct msqid_kernel *msqkptr, struct label *msqlabel, struct msg *msgptr, struct label *msglabel); typedef void (*mpo_sysvmsg_destroy_label_t)(struct label *label); typedef void (*mpo_sysvmsg_init_label_t)(struct label *label); typedef int (*mpo_sysvmsq_check_msgmsq_t)(struct ucred *cred, struct msg *msgptr, struct label *msglabel, struct msqid_kernel *msqkptr, struct label *msqklabel); typedef int (*mpo_sysvmsq_check_msgrcv_t)(struct ucred *cred, struct msg *msgptr, struct label *msglabel); typedef int (*mpo_sysvmsq_check_msgrmid_t)(struct ucred *cred, struct msg *msgptr, struct label *msglabel); typedef int (*mpo_sysvmsq_check_msqget_t)(struct ucred *cred, struct msqid_kernel *msqkptr, struct label *msqklabel); typedef int (*mpo_sysvmsq_check_msqctl_t)(struct ucred *cred, struct msqid_kernel *msqkptr, struct label *msqklabel, int cmd); typedef int (*mpo_sysvmsq_check_msqrcv_t)(struct ucred *cred, struct msqid_kernel *msqkptr, struct label *msqklabel); typedef int (*mpo_sysvmsq_check_msqsnd_t)(struct ucred *cred, struct msqid_kernel *msqkptr, struct label *msqklabel); typedef void (*mpo_sysvmsq_cleanup_t)(struct label *msqlabel); typedef void (*mpo_sysvmsq_create_t)(struct ucred *cred, struct msqid_kernel *msqkptr, struct label *msqlabel); typedef void (*mpo_sysvmsq_destroy_label_t)(struct label *label); typedef void (*mpo_sysvmsq_init_label_t)(struct label *label); typedef int (*mpo_sysvsem_check_semctl_t)(struct ucred *cred, struct semid_kernel *semakptr, struct label *semaklabel, int cmd); typedef int (*mpo_sysvsem_check_semget_t)(struct ucred *cred, struct semid_kernel *semakptr, struct label *semaklabel); typedef int (*mpo_sysvsem_check_semop_t)(struct ucred *cred, struct semid_kernel *semakptr, struct label *semaklabel, size_t accesstype); typedef void (*mpo_sysvsem_cleanup_t)(struct label *semalabel); typedef void (*mpo_sysvsem_create_t)(struct ucred *cred, struct semid_kernel *semakptr, struct label *semalabel); typedef void (*mpo_sysvsem_destroy_label_t)(struct label *label); typedef void (*mpo_sysvsem_init_label_t)(struct label *label); typedef int (*mpo_sysvshm_check_shmat_t)(struct ucred *cred, struct shmid_kernel *shmsegptr, struct label *shmseglabel, int shmflg); typedef int (*mpo_sysvshm_check_shmctl_t)(struct ucred *cred, struct shmid_kernel *shmsegptr, struct label *shmseglabel, int cmd); typedef int (*mpo_sysvshm_check_shmdt_t)(struct ucred *cred, struct shmid_kernel *shmsegptr, struct label *shmseglabel); typedef int (*mpo_sysvshm_check_shmget_t)(struct ucred *cred, struct shmid_kernel *shmsegptr, struct label *shmseglabel, int shmflg); typedef void (*mpo_sysvshm_cleanup_t)(struct label *shmlabel); typedef void (*mpo_sysvshm_create_t)(struct ucred *cred, struct shmid_kernel *shmsegptr, struct label *shmlabel); typedef void (*mpo_sysvshm_destroy_label_t)(struct label *label); typedef void (*mpo_sysvshm_init_label_t)(struct label *label); typedef void (*mpo_thread_userret_t)(struct thread *thread); typedef int (*mpo_vnode_associate_extattr_t)(struct mount *mp, struct label *mplabel, struct vnode *vp, struct label *vplabel); typedef void (*mpo_vnode_associate_singlelabel_t)(struct mount *mp, struct label *mplabel, struct vnode *vp, struct label *vplabel); typedef int (*mpo_vnode_check_access_t)(struct ucred *cred, struct vnode *vp, struct label *vplabel, int acc_mode); typedef int (*mpo_vnode_check_chdir_t)(struct ucred *cred, struct vnode *dvp, struct label *dvplabel); typedef int (*mpo_vnode_check_chroot_t)(struct ucred *cred, struct vnode *dvp, struct label *dvplabel); typedef int (*mpo_vnode_check_create_t)(struct ucred *cred, struct vnode *dvp, struct label *dvplabel, struct componentname *cnp, struct vattr *vap); typedef int (*mpo_vnode_check_deleteacl_t)(struct ucred *cred, struct vnode *vp, struct label *vplabel, acl_type_t type); typedef int (*mpo_vnode_check_deleteextattr_t)(struct ucred *cred, struct vnode *vp, struct label *vplabel, int attrnamespace, const char *name); typedef int (*mpo_vnode_check_exec_t)(struct ucred *cred, struct vnode *vp, struct label *vplabel, struct image_params *imgp, struct label *execlabel); typedef int (*mpo_vnode_check_getacl_t)(struct ucred *cred, struct vnode *vp, struct label *vplabel, acl_type_t type); typedef int (*mpo_vnode_check_getextattr_t)(struct ucred *cred, struct vnode *vp, struct label *vplabel, int attrnamespace, const char *name, struct uio *uio); typedef int (*mpo_vnode_check_link_t)(struct ucred *cred, struct vnode *dvp, struct label *dvplabel, struct vnode *vp, struct label *vplabel, struct componentname *cnp); typedef int (*mpo_vnode_check_listextattr_t)(struct ucred *cred, struct vnode *vp, struct label *vplabel, int attrnamespace); typedef int (*mpo_vnode_check_lookup_t)(struct ucred *cred, struct vnode *dvp, struct label *dvplabel, struct componentname *cnp); typedef int (*mpo_vnode_check_mmap_t)(struct ucred *cred, struct vnode *vp, struct label *label, int prot, int flags); typedef void (*mpo_vnode_check_mmap_downgrade_t)(struct ucred *cred, struct vnode *vp, struct label *vplabel, int *prot); typedef int (*mpo_vnode_check_mprotect_t)(struct ucred *cred, struct vnode *vp, struct label *vplabel, int prot); typedef int (*mpo_vnode_check_open_t)(struct ucred *cred, struct vnode *vp, struct label *vplabel, int acc_mode); typedef int (*mpo_vnode_check_poll_t)(struct ucred *active_cred, struct ucred *file_cred, struct vnode *vp, struct label *vplabel); typedef int (*mpo_vnode_check_read_t)(struct ucred *active_cred, struct ucred *file_cred, struct vnode *vp, struct label *vplabel); typedef int (*mpo_vnode_check_readdir_t)(struct ucred *cred, struct vnode *dvp, struct label *dvplabel); typedef int (*mpo_vnode_check_readlink_t)(struct ucred *cred, struct vnode *vp, struct label *vplabel); typedef int (*mpo_vnode_check_relabel_t)(struct ucred *cred, struct vnode *vp, struct label *vplabel, struct label *newlabel); typedef int (*mpo_vnode_check_rename_from_t)(struct ucred *cred, struct vnode *dvp, struct label *dvplabel, struct vnode *vp, struct label *vplabel, struct componentname *cnp); typedef int (*mpo_vnode_check_rename_to_t)(struct ucred *cred, struct vnode *dvp, struct label *dvplabel, struct vnode *vp, struct label *vplabel, int samedir, struct componentname *cnp); typedef int (*mpo_vnode_check_revoke_t)(struct ucred *cred, struct vnode *vp, struct label *vplabel); typedef int (*mpo_vnode_check_setacl_t)(struct ucred *cred, struct vnode *vp, struct label *vplabel, acl_type_t type, struct acl *acl); typedef int (*mpo_vnode_check_setextattr_t)(struct ucred *cred, struct vnode *vp, struct label *vplabel, int attrnamespace, const char *name, struct uio *uio); typedef int (*mpo_vnode_check_setflags_t)(struct ucred *cred, struct vnode *vp, struct label *vplabel, u_long flags); typedef int (*mpo_vnode_check_setmode_t)(struct ucred *cred, struct vnode *vp, struct label *vplabel, mode_t mode); typedef int (*mpo_vnode_check_setowner_t)(struct ucred *cred, struct vnode *vp, struct label *vplabel, uid_t uid, gid_t gid); typedef int (*mpo_vnode_check_setutimes_t)(struct ucred *cred, struct vnode *vp, struct label *vplabel, struct timespec atime, struct timespec mtime); typedef int (*mpo_vnode_check_stat_t)(struct ucred *active_cred, struct ucred *file_cred, struct vnode *vp, struct label *vplabel); typedef int (*mpo_vnode_check_unlink_t)(struct ucred *cred, struct vnode *dvp, struct label *dvplabel, struct vnode *vp, struct label *vplabel, struct componentname *cnp); typedef int (*mpo_vnode_check_write_t)(struct ucred *active_cred, struct ucred *file_cred, struct vnode *vp, struct label *vplabel); typedef void (*mpo_vnode_copy_label_t)(struct label *src, struct label *dest); typedef int (*mpo_vnode_create_extattr_t)(struct ucred *cred, struct mount *mp, struct label *mplabel, struct vnode *dvp, struct label *dvplabel, struct vnode *vp, struct label *vplabel, struct componentname *cnp); typedef void (*mpo_vnode_destroy_label_t)(struct label *label); typedef void (*mpo_vnode_execve_transition_t)(struct ucred *old, struct ucred *new, struct vnode *vp, struct label *vplabel, struct label *interpvplabel, struct image_params *imgp, struct label *execlabel); typedef int (*mpo_vnode_execve_will_transition_t)(struct ucred *old, struct vnode *vp, struct label *vplabel, struct label *interpvplabel, struct image_params *imgp, struct label *execlabel); typedef int (*mpo_vnode_externalize_label_t)(struct label *label, char *element_name, struct sbuf *sb, int *claimed); typedef void (*mpo_vnode_init_label_t)(struct label *label); typedef int (*mpo_vnode_internalize_label_t)(struct label *label, char *element_name, char *element_data, int *claimed); typedef void (*mpo_vnode_relabel_t)(struct ucred *cred, struct vnode *vp, struct label *vplabel, struct label *label); typedef int (*mpo_vnode_setlabel_extattr_t)(struct ucred *cred, struct vnode *vp, struct label *vplabel, struct label *intlabel); struct mac_policy_ops { /* * Policy module operations. */ mpo_destroy_t mpo_destroy; mpo_init_t mpo_init; /* * General policy-directed security system call so that policies may * implement new services without reserving explicit system call * numbers. */ mpo_syscall_t mpo_syscall; /* * Label operations. Initialize label storage, destroy label * storage, recycle for re-use without init/destroy, copy a label to * initialized storage, and externalize/internalize from/to * initialized storage. */ mpo_bpfdesc_check_receive_t mpo_bpfdesc_check_receive; mpo_bpfdesc_create_t mpo_bpfdesc_create; mpo_bpfdesc_create_mbuf_t mpo_bpfdesc_create_mbuf; mpo_bpfdesc_destroy_label_t mpo_bpfdesc_destroy_label; mpo_bpfdesc_init_label_t mpo_bpfdesc_init_label; mpo_cred_check_relabel_t mpo_cred_check_relabel; mpo_cred_check_visible_t mpo_cred_check_visible; mpo_cred_copy_label_t mpo_cred_copy_label; mpo_cred_destroy_label_t mpo_cred_destroy_label; mpo_cred_externalize_label_t mpo_cred_externalize_label; mpo_cred_init_label_t mpo_cred_init_label; mpo_cred_internalize_label_t mpo_cred_internalize_label; mpo_cred_relabel_t mpo_cred_relabel; mpo_devfs_create_device_t mpo_devfs_create_device; mpo_devfs_create_directory_t mpo_devfs_create_directory; mpo_devfs_create_symlink_t mpo_devfs_create_symlink; mpo_devfs_destroy_label_t mpo_devfs_destroy_label; mpo_devfs_init_label_t mpo_devfs_init_label; mpo_devfs_update_t mpo_devfs_update; mpo_devfs_vnode_associate_t mpo_devfs_vnode_associate; mpo_ifnet_check_relabel_t mpo_ifnet_check_relabel; mpo_ifnet_check_transmit_t mpo_ifnet_check_transmit; mpo_ifnet_copy_label_t mpo_ifnet_copy_label; mpo_ifnet_create_t mpo_ifnet_create; mpo_ifnet_create_mbuf_t mpo_ifnet_create_mbuf; mpo_ifnet_destroy_label_t mpo_ifnet_destroy_label; mpo_ifnet_externalize_label_t mpo_ifnet_externalize_label; mpo_ifnet_init_label_t mpo_ifnet_init_label; mpo_ifnet_internalize_label_t mpo_ifnet_internalize_label; mpo_ifnet_relabel_t mpo_ifnet_relabel; mpo_inpcb_check_deliver_t mpo_inpcb_check_deliver; mpo_inpcb_create_t mpo_inpcb_create; mpo_inpcb_create_mbuf_t mpo_inpcb_create_mbuf; mpo_inpcb_destroy_label_t mpo_inpcb_destroy_label; mpo_inpcb_init_label_t mpo_inpcb_init_label; mpo_inpcb_sosetlabel_t mpo_inpcb_sosetlabel; mpo_ipq_create_t mpo_ipq_create; mpo_ipq_destroy_label_t mpo_ipq_destroy_label; mpo_ipq_init_label_t mpo_ipq_init_label; mpo_ipq_match_t mpo_ipq_match; mpo_ipq_reassemble mpo_ipq_reassemble; mpo_ipq_update_t mpo_ipq_update; mpo_kenv_check_dump_t mpo_kenv_check_dump; mpo_kenv_check_get_t mpo_kenv_check_get; mpo_kenv_check_set_t mpo_kenv_check_set; mpo_kenv_check_unset_t mpo_kenv_check_unset; mpo_kld_check_load_t mpo_kld_check_load; mpo_kld_check_stat_t mpo_kld_check_stat; mpo_mbuf_copy_label_t mpo_mbuf_copy_label; mpo_mbuf_destroy_label_t mpo_mbuf_destroy_label; mpo_mbuf_init_label_t mpo_mbuf_init_label; mpo_mount_check_stat_t mpo_mount_check_stat; mpo_mount_create_t mpo_mount_create; mpo_mount_destroy_label_t mpo_mount_destroy_label; mpo_mount_init_label_t mpo_mount_init_label; mpo_netatalk_aarp_send_t mpo_netatalk_aarp_send; mpo_netinet_arp_send_t mpo_netinet_arp_send; mpo_netinet_firewall_reply_t mpo_netinet_firewall_reply; mpo_netinet_firewall_send_t mpo_netinet_firewall_send; mpo_netinet_fragment_t mpo_netinet_fragment; mpo_netinet_icmp_reply_t mpo_netinet_icmp_reply; mpo_netinet_icmp_replyinplace_t mpo_netinet_icmp_replyinplace; mpo_netinet_igmp_send_t mpo_netinet_igmp_send; mpo_netinet_tcp_reply_t mpo_netinet_tcp_reply; mpo_netinet6_nd6_send_t mpo_netinet6_nd6_send; mpo_pipe_check_ioctl_t mpo_pipe_check_ioctl; mpo_pipe_check_poll_t mpo_pipe_check_poll; mpo_pipe_check_read_t mpo_pipe_check_read; mpo_pipe_check_relabel_t mpo_pipe_check_relabel; mpo_pipe_check_stat_t mpo_pipe_check_stat; mpo_pipe_check_write_t mpo_pipe_check_write; mpo_pipe_copy_label_t mpo_pipe_copy_label; mpo_pipe_create_t mpo_pipe_create; mpo_pipe_destroy_label_t mpo_pipe_destroy_label; mpo_pipe_externalize_label_t mpo_pipe_externalize_label; mpo_pipe_init_label_t mpo_pipe_init_label; mpo_pipe_internalize_label_t mpo_pipe_internalize_label; mpo_pipe_relabel_t mpo_pipe_relabel; - mpo_posixsem_check_destroy_t mpo_posixsem_check_destroy; mpo_posixsem_check_getvalue_t mpo_posixsem_check_getvalue; mpo_posixsem_check_open_t mpo_posixsem_check_open; mpo_posixsem_check_post_t mpo_posixsem_check_post; mpo_posixsem_check_unlink_t mpo_posixsem_check_unlink; mpo_posixsem_check_wait_t mpo_posixsem_check_wait; mpo_posixsem_create_t mpo_posixsem_create; mpo_posixsem_destroy_label_t mpo_posixsem_destroy_label; mpo_posixsem_init_label_t mpo_posixsem_init_label; mpo_posixshm_check_mmap_t mpo_posixshm_check_mmap; mpo_posixshm_check_open_t mpo_posixshm_check_open; mpo_posixshm_check_stat_t mpo_posixshm_check_stat; mpo_posixshm_check_truncate_t mpo_posixshm_check_truncate; mpo_posixshm_check_unlink_t mpo_posixshm_check_unlink; mpo_posixshm_create_t mpo_posixshm_create; mpo_posixshm_destroy_label_t mpo_posixshm_destroy_label; mpo_posixshm_init_label_t mpo_posixshm_init_label; mpo_priv_check_t mpo_priv_check; mpo_priv_grant_t mpo_priv_grant; mpo_proc_associate_nfsd_t mpo_proc_associate_nfsd; mpo_proc_check_debug_t mpo_proc_check_debug; mpo_proc_check_sched_t mpo_proc_check_sched; mpo_proc_check_setaudit_t mpo_proc_check_setaudit; mpo_proc_check_setaudit_addr_t mpo_proc_check_setaudit_addr; mpo_proc_check_setauid_t mpo_proc_check_setauid; mpo_proc_check_setuid_t mpo_proc_check_setuid; mpo_proc_check_seteuid_t mpo_proc_check_seteuid; mpo_proc_check_setgid_t mpo_proc_check_setgid; mpo_proc_check_setegid_t mpo_proc_check_setegid; mpo_proc_check_setgroups_t mpo_proc_check_setgroups; mpo_proc_check_setreuid_t mpo_proc_check_setreuid; mpo_proc_check_setregid_t mpo_proc_check_setregid; mpo_proc_check_setresuid_t mpo_proc_check_setresuid; mpo_proc_check_setresgid_t mpo_proc_check_setresgid; mpo_proc_check_signal_t mpo_proc_check_signal; mpo_proc_check_wait_t mpo_proc_check_wait; mpo_proc_create_swapper_t mpo_proc_create_swapper; mpo_proc_create_init_t mpo_proc_create_init; mpo_proc_destroy_label_t mpo_proc_destroy_label; mpo_proc_init_label_t mpo_proc_init_label; mpo_socket_check_accept_t mpo_socket_check_accept; mpo_socket_check_bind_t mpo_socket_check_bind; mpo_socket_check_connect_t mpo_socket_check_connect; mpo_socket_check_create_t mpo_socket_check_create; mpo_socket_check_deliver_t mpo_socket_check_deliver; mpo_socket_check_listen_t mpo_socket_check_listen; mpo_socket_check_poll_t mpo_socket_check_poll; mpo_socket_check_receive_t mpo_socket_check_receive; mpo_socket_check_relabel_t mpo_socket_check_relabel; mpo_socket_check_send_t mpo_socket_check_send; mpo_socket_check_stat_t mpo_socket_check_stat; mpo_socket_check_visible_t mpo_socket_check_visible; mpo_socket_copy_label_t mpo_socket_copy_label; mpo_socket_create_t mpo_socket_create; mpo_socket_create_mbuf_t mpo_socket_create_mbuf; mpo_socket_destroy_label_t mpo_socket_destroy_label; mpo_socket_externalize_label_t mpo_socket_externalize_label; mpo_socket_init_label_t mpo_socket_init_label; mpo_socket_internalize_label_t mpo_socket_internalize_label; mpo_socket_newconn_t mpo_socket_newconn; mpo_socket_relabel_t mpo_socket_relabel; mpo_socketpeer_destroy_label_t mpo_socketpeer_destroy_label; mpo_socketpeer_externalize_label_t mpo_socketpeer_externalize_label; mpo_socketpeer_init_label_t mpo_socketpeer_init_label; mpo_socketpeer_set_from_mbuf_t mpo_socketpeer_set_from_mbuf; mpo_socketpeer_set_from_socket_t mpo_socketpeer_set_from_socket; mpo_syncache_init_label_t mpo_syncache_init_label; mpo_syncache_destroy_label_t mpo_syncache_destroy_label; mpo_syncache_create_t mpo_syncache_create; mpo_syncache_create_mbuf_t mpo_syncache_create_mbuf; mpo_system_check_acct_t mpo_system_check_acct; mpo_system_check_audit_t mpo_system_check_audit; mpo_system_check_auditctl_t mpo_system_check_auditctl; mpo_system_check_auditon_t mpo_system_check_auditon; mpo_system_check_reboot_t mpo_system_check_reboot; mpo_system_check_swapon_t mpo_system_check_swapon; mpo_system_check_swapoff_t mpo_system_check_swapoff; mpo_system_check_sysctl_t mpo_system_check_sysctl; mpo_sysvmsg_cleanup_t mpo_sysvmsg_cleanup; mpo_sysvmsg_create_t mpo_sysvmsg_create; mpo_sysvmsg_destroy_label_t mpo_sysvmsg_destroy_label; mpo_sysvmsg_init_label_t mpo_sysvmsg_init_label; mpo_sysvmsq_check_msgmsq_t mpo_sysvmsq_check_msgmsq; mpo_sysvmsq_check_msgrcv_t mpo_sysvmsq_check_msgrcv; mpo_sysvmsq_check_msgrmid_t mpo_sysvmsq_check_msgrmid; mpo_sysvmsq_check_msqctl_t mpo_sysvmsq_check_msqctl; mpo_sysvmsq_check_msqget_t mpo_sysvmsq_check_msqget; mpo_sysvmsq_check_msqrcv_t mpo_sysvmsq_check_msqrcv; mpo_sysvmsq_check_msqsnd_t mpo_sysvmsq_check_msqsnd; mpo_sysvmsq_cleanup_t mpo_sysvmsq_cleanup; mpo_sysvmsq_create_t mpo_sysvmsq_create; mpo_sysvmsq_destroy_label_t mpo_sysvmsq_destroy_label; mpo_sysvmsq_init_label_t mpo_sysvmsq_init_label; mpo_sysvsem_check_semctl_t mpo_sysvsem_check_semctl; mpo_sysvsem_check_semget_t mpo_sysvsem_check_semget; mpo_sysvsem_check_semop_t mpo_sysvsem_check_semop; mpo_sysvsem_cleanup_t mpo_sysvsem_cleanup; mpo_sysvsem_create_t mpo_sysvsem_create; mpo_sysvsem_destroy_label_t mpo_sysvsem_destroy_label; mpo_sysvsem_init_label_t mpo_sysvsem_init_label; mpo_sysvshm_check_shmat_t mpo_sysvshm_check_shmat; mpo_sysvshm_check_shmctl_t mpo_sysvshm_check_shmctl; mpo_sysvshm_check_shmdt_t mpo_sysvshm_check_shmdt; mpo_sysvshm_check_shmget_t mpo_sysvshm_check_shmget; mpo_sysvshm_cleanup_t mpo_sysvshm_cleanup; mpo_sysvshm_create_t mpo_sysvshm_create; mpo_sysvshm_destroy_label_t mpo_sysvshm_destroy_label; mpo_sysvshm_init_label_t mpo_sysvshm_init_label; mpo_thread_userret_t mpo_thread_userret; mpo_vnode_check_access_t mpo_vnode_check_access; mpo_vnode_check_chdir_t mpo_vnode_check_chdir; mpo_vnode_check_chroot_t mpo_vnode_check_chroot; mpo_vnode_check_create_t mpo_vnode_check_create; mpo_vnode_check_deleteacl_t mpo_vnode_check_deleteacl; mpo_vnode_check_deleteextattr_t mpo_vnode_check_deleteextattr; mpo_vnode_check_exec_t mpo_vnode_check_exec; mpo_vnode_check_getacl_t mpo_vnode_check_getacl; mpo_vnode_check_getextattr_t mpo_vnode_check_getextattr; mpo_vnode_check_link_t mpo_vnode_check_link; mpo_vnode_check_listextattr_t mpo_vnode_check_listextattr; mpo_vnode_check_lookup_t mpo_vnode_check_lookup; mpo_vnode_check_mmap_t mpo_vnode_check_mmap; mpo_vnode_check_mmap_downgrade_t mpo_vnode_check_mmap_downgrade; mpo_vnode_check_mprotect_t mpo_vnode_check_mprotect; mpo_vnode_check_open_t mpo_vnode_check_open; mpo_vnode_check_poll_t mpo_vnode_check_poll; mpo_vnode_check_read_t mpo_vnode_check_read; mpo_vnode_check_readdir_t mpo_vnode_check_readdir; mpo_vnode_check_readlink_t mpo_vnode_check_readlink; mpo_vnode_check_relabel_t mpo_vnode_check_relabel; mpo_vnode_check_rename_from_t mpo_vnode_check_rename_from; mpo_vnode_check_rename_to_t mpo_vnode_check_rename_to; mpo_vnode_check_revoke_t mpo_vnode_check_revoke; mpo_vnode_check_setacl_t mpo_vnode_check_setacl; mpo_vnode_check_setextattr_t mpo_vnode_check_setextattr; mpo_vnode_check_setflags_t mpo_vnode_check_setflags; mpo_vnode_check_setmode_t mpo_vnode_check_setmode; mpo_vnode_check_setowner_t mpo_vnode_check_setowner; mpo_vnode_check_setutimes_t mpo_vnode_check_setutimes; mpo_vnode_check_stat_t mpo_vnode_check_stat; mpo_vnode_check_unlink_t mpo_vnode_check_unlink; mpo_vnode_check_write_t mpo_vnode_check_write; mpo_vnode_associate_extattr_t mpo_vnode_associate_extattr; mpo_vnode_associate_singlelabel_t mpo_vnode_associate_singlelabel; mpo_vnode_destroy_label_t mpo_vnode_destroy_label; mpo_vnode_copy_label_t mpo_vnode_copy_label; mpo_vnode_create_extattr_t mpo_vnode_create_extattr; mpo_vnode_execve_transition_t mpo_vnode_execve_transition; mpo_vnode_execve_will_transition_t mpo_vnode_execve_will_transition; mpo_vnode_externalize_label_t mpo_vnode_externalize_label; mpo_vnode_init_label_t mpo_vnode_init_label; mpo_vnode_internalize_label_t mpo_vnode_internalize_label; mpo_vnode_relabel_t mpo_vnode_relabel; mpo_vnode_setlabel_extattr_t mpo_vnode_setlabel_extattr; }; /* * struct mac_policy_conf is the registration structure for policies, and is * provided to the MAC Framework using MAC_POLICY_SET() to invoke a SYSINIT * to register the policy. In general, the fields are immutable, with the * exception of the "security field", run-time flags, and policy list entry, * which are managed by the MAC Framework. Be careful when modifying this * structure, as its layout is statically compiled into all policies. */ struct mac_policy_conf { char *mpc_name; /* policy name */ char *mpc_fullname; /* policy full name */ struct mac_policy_ops *mpc_ops; /* policy operations */ int mpc_loadtime_flags; /* flags */ int *mpc_field_off; /* security field */ int mpc_runtime_flags; /* flags */ LIST_ENTRY(mac_policy_conf) mpc_list; /* global list */ }; /* Flags for the mpc_loadtime_flags field. */ #define MPC_LOADTIME_FLAG_NOTLATE 0x00000001 #define MPC_LOADTIME_FLAG_UNLOADOK 0x00000002 #define MPC_LOADTIME_FLAG_LABELMBUFS 0x00000004 /* Flags for the mpc_runtime_flags field. */ #define MPC_RUNTIME_FLAG_REGISTERED 0x00000001 /*- * The TrustedBSD MAC Framework has a major version number, MAC_VERSION, * which defines the ABI of the Framework present in the kernel (and depended * on by policy modules compiled against that kernel). Currently, * MAC_POLICY_SET() requires that the kernel and module ABI version numbers * exactly match. The following major versions have been defined to date: * * MAC version FreeBSD versions * 1 5.x * 2 6.x * 3 7.x * 4 8.x */ #define MAC_VERSION 4 #define MAC_POLICY_SET(mpops, mpname, mpfullname, mpflags, privdata_wanted) \ static struct mac_policy_conf mpname##_mac_policy_conf = { \ #mpname, \ mpfullname, \ mpops, \ mpflags, \ privdata_wanted, \ 0, \ }; \ static moduledata_t mpname##_mod = { \ #mpname, \ mac_policy_modevent, \ &mpname##_mac_policy_conf \ }; \ MODULE_DEPEND(mpname, kernel_mac_support, MAC_VERSION, \ MAC_VERSION, MAC_VERSION); \ DECLARE_MODULE(mpname, mpname##_mod, SI_SUB_MAC_POLICY, \ SI_ORDER_MIDDLE) int mac_policy_modevent(module_t mod, int type, void *data); /* * Policy interface to map a struct label pointer to per-policy data. * Typically, policies wrap this in their own accessor macro that casts a * uintptr_t to a policy-specific data type. */ intptr_t mac_label_get(struct label *l, int slot); void mac_label_set(struct label *l, int slot, intptr_t v); #endif /* !_SECURITY_MAC_MAC_POLICY_H_ */ Index: head/sys/security/mac/mac_posix_sem.c =================================================================== --- head/sys/security/mac/mac_posix_sem.c (revision 179962) +++ head/sys/security/mac/mac_posix_sem.c (revision 179963) @@ -1,151 +1,141 @@ /*- * Copyright (c) 2003-2006 SPARTA, Inc. * All rights reserved. * * This software was developed for the FreeBSD Project in part by Network * Associates Laboratories, the Security Research Division of Network * Associates, Inc. under DARPA/SPAWAR contract N66001-01-C-8035 ("CBOSS"), * as part of the DARPA CHATS research program. * * This software was enhanced by SPARTA ISSO under SPAWAR contract * N66001-04-C-6019 ("SEFOS"). * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #include __FBSDID("$FreeBSD$"); #include "opt_mac.h" #include "opt_posix.h" #include #include #include #include #include #include #include #include #include #include static struct label * mac_posixsem_label_alloc(void) { struct label *label; label = mac_labelzone_alloc(M_WAITOK); MAC_PERFORM(posixsem_init_label, label); return (label); } void mac_posixsem_init(struct ksem *ks) { ks->ks_label = mac_posixsem_label_alloc(); } static void mac_posixsem_label_free(struct label *label) { MAC_PERFORM(posixsem_destroy_label, label); mac_labelzone_free(label); } void mac_posixsem_destroy(struct ksem *ks) { mac_posixsem_label_free(ks->ks_label); ks->ks_label = NULL; } void mac_posixsem_create(struct ucred *cred, struct ksem *ks) { MAC_PERFORM(posixsem_create, cred, ks, ks->ks_label); } int -mac_posixsem_check_destroy(struct ucred *cred, struct ksem *ks) -{ - int error; - - MAC_CHECK(posixsem_check_destroy, cred, ks, ks->ks_label); - - return (error); -} - -int mac_posixsem_check_open(struct ucred *cred, struct ksem *ks) { int error; MAC_CHECK(posixsem_check_open, cred, ks, ks->ks_label); return (error); } int mac_posixsem_check_getvalue(struct ucred *cred, struct ksem *ks) { int error; MAC_CHECK(posixsem_check_getvalue, cred, ks, ks->ks_label); return (error); } int mac_posixsem_check_post(struct ucred *cred, struct ksem *ks) { int error; MAC_CHECK(posixsem_check_post, cred, ks, ks->ks_label); return (error); } int mac_posixsem_check_unlink(struct ucred *cred, struct ksem *ks) { int error; MAC_CHECK(posixsem_check_unlink, cred, ks, ks->ks_label); return (error); } int mac_posixsem_check_wait(struct ucred *cred, struct ksem *ks) { int error; MAC_CHECK(posixsem_check_wait, cred, ks, ks->ks_label); return (error); } Index: head/sys/security/mac_biba/mac_biba.c =================================================================== --- head/sys/security/mac_biba/mac_biba.c (revision 179962) +++ head/sys/security/mac_biba/mac_biba.c (revision 179963) @@ -1,3463 +1,3462 @@ /*- * Copyright (c) 1999-2002, 2007 Robert N. M. Watson * Copyright (c) 2001-2005 McAfee, Inc. * Copyright (c) 2006 SPARTA, Inc. * All rights reserved. * * This software was developed by Robert Watson for the TrustedBSD Project. * * This software was developed for the FreeBSD Project in part by McAfee * Research, the Security Research Division of McAfee, Inc. under * DARPA/SPAWAR contract N66001-01-C-8035 ("CBOSS"), as part of the DARPA * CHATS research program. * * This software was enhanced by SPARTA ISSO under SPAWAR contract * N66001-04-C-6019 ("SEFOS"). * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * $FreeBSD$ */ /* * Developed by the TrustedBSD Project. * * Biba fixed label mandatory integrity policy. */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include SYSCTL_DECL(_security_mac); SYSCTL_NODE(_security_mac, OID_AUTO, biba, CTLFLAG_RW, 0, "TrustedBSD mac_biba policy controls"); static int biba_label_size = sizeof(struct mac_biba); SYSCTL_INT(_security_mac_biba, OID_AUTO, label_size, CTLFLAG_RD, &biba_label_size, 0, "Size of struct mac_biba"); static int biba_enabled = 1; SYSCTL_INT(_security_mac_biba, OID_AUTO, enabled, CTLFLAG_RW, &biba_enabled, 0, "Enforce MAC/Biba policy"); TUNABLE_INT("security.mac.biba.enabled", &biba_enabled); static int destroyed_not_inited; SYSCTL_INT(_security_mac_biba, OID_AUTO, destroyed_not_inited, CTLFLAG_RD, &destroyed_not_inited, 0, "Count of labels destroyed but not inited"); static int trust_all_interfaces = 0; SYSCTL_INT(_security_mac_biba, OID_AUTO, trust_all_interfaces, CTLFLAG_RD, &trust_all_interfaces, 0, "Consider all interfaces 'trusted' by MAC/Biba"); TUNABLE_INT("security.mac.biba.trust_all_interfaces", &trust_all_interfaces); static char trusted_interfaces[128]; SYSCTL_STRING(_security_mac_biba, OID_AUTO, trusted_interfaces, CTLFLAG_RD, trusted_interfaces, 0, "Interfaces considered 'trusted' by MAC/Biba"); TUNABLE_STR("security.mac.biba.trusted_interfaces", trusted_interfaces, sizeof(trusted_interfaces)); static int max_compartments = MAC_BIBA_MAX_COMPARTMENTS; SYSCTL_INT(_security_mac_biba, OID_AUTO, max_compartments, CTLFLAG_RD, &max_compartments, 0, "Maximum supported compartments"); static int ptys_equal = 0; SYSCTL_INT(_security_mac_biba, OID_AUTO, ptys_equal, CTLFLAG_RW, &ptys_equal, 0, "Label pty devices as biba/equal on create"); TUNABLE_INT("security.mac.biba.ptys_equal", &ptys_equal); static int interfaces_equal; SYSCTL_INT(_security_mac_biba, OID_AUTO, interfaces_equal, CTLFLAG_RW, &interfaces_equal, 0, "Label network interfaces as biba/equal on create"); TUNABLE_INT("security.mac.biba.interfaces_equal", &interfaces_equal); static int revocation_enabled = 0; SYSCTL_INT(_security_mac_biba, OID_AUTO, revocation_enabled, CTLFLAG_RW, &revocation_enabled, 0, "Revoke access to objects on relabel"); TUNABLE_INT("security.mac.biba.revocation_enabled", &revocation_enabled); static int biba_slot; #define SLOT(l) ((struct mac_biba *)mac_label_get((l), biba_slot)) #define SLOT_SET(l, val) mac_label_set((l), biba_slot, (uintptr_t)(val)) static uma_zone_t zone_biba; static __inline int biba_bit_set_empty(u_char *set) { int i; for (i = 0; i < MAC_BIBA_MAX_COMPARTMENTS >> 3; i++) if (set[i] != 0) return (0); return (1); } static struct mac_biba * biba_alloc(int flag) { return (uma_zalloc(zone_biba, flag | M_ZERO)); } static void biba_free(struct mac_biba *mb) { if (mb != NULL) uma_zfree(zone_biba, mb); else atomic_add_int(&destroyed_not_inited, 1); } static int biba_atmostflags(struct mac_biba *mb, int flags) { if ((mb->mb_flags & flags) != mb->mb_flags) return (EINVAL); return (0); } static int biba_dominate_element(struct mac_biba_element *a, struct mac_biba_element *b) { int bit; switch (a->mbe_type) { case MAC_BIBA_TYPE_EQUAL: case MAC_BIBA_TYPE_HIGH: return (1); case MAC_BIBA_TYPE_LOW: switch (b->mbe_type) { case MAC_BIBA_TYPE_GRADE: case MAC_BIBA_TYPE_HIGH: return (0); case MAC_BIBA_TYPE_EQUAL: case MAC_BIBA_TYPE_LOW: return (1); default: panic("biba_dominate_element: b->mbe_type invalid"); } case MAC_BIBA_TYPE_GRADE: switch (b->mbe_type) { case MAC_BIBA_TYPE_EQUAL: case MAC_BIBA_TYPE_LOW: return (1); case MAC_BIBA_TYPE_HIGH: return (0); case MAC_BIBA_TYPE_GRADE: for (bit = 1; bit <= MAC_BIBA_MAX_COMPARTMENTS; bit++) if (!MAC_BIBA_BIT_TEST(bit, a->mbe_compartments) && MAC_BIBA_BIT_TEST(bit, b->mbe_compartments)) return (0); return (a->mbe_grade >= b->mbe_grade); default: panic("biba_dominate_element: b->mbe_type invalid"); } default: panic("biba_dominate_element: a->mbe_type invalid"); } return (0); } static int biba_subject_dominate_high(struct mac_biba *mb) { struct mac_biba_element *element; KASSERT((mb->mb_flags & MAC_BIBA_FLAG_EFFECTIVE) != 0, ("biba_effective_in_range: mb not effective")); element = &mb->mb_effective; return (element->mbe_type == MAC_BIBA_TYPE_EQUAL || element->mbe_type == MAC_BIBA_TYPE_HIGH); } static int biba_range_in_range(struct mac_biba *rangea, struct mac_biba *rangeb) { return (biba_dominate_element(&rangeb->mb_rangehigh, &rangea->mb_rangehigh) && biba_dominate_element(&rangea->mb_rangelow, &rangeb->mb_rangelow)); } static int biba_effective_in_range(struct mac_biba *effective, struct mac_biba *range) { KASSERT((effective->mb_flags & MAC_BIBA_FLAG_EFFECTIVE) != 0, ("biba_effective_in_range: a not effective")); KASSERT((range->mb_flags & MAC_BIBA_FLAG_RANGE) != 0, ("biba_effective_in_range: b not range")); return (biba_dominate_element(&range->mb_rangehigh, &effective->mb_effective) && biba_dominate_element(&effective->mb_effective, &range->mb_rangelow)); return (1); } static int biba_dominate_effective(struct mac_biba *a, struct mac_biba *b) { KASSERT((a->mb_flags & MAC_BIBA_FLAG_EFFECTIVE) != 0, ("biba_dominate_effective: a not effective")); KASSERT((b->mb_flags & MAC_BIBA_FLAG_EFFECTIVE) != 0, ("biba_dominate_effective: b not effective")); return (biba_dominate_element(&a->mb_effective, &b->mb_effective)); } static int biba_equal_element(struct mac_biba_element *a, struct mac_biba_element *b) { if (a->mbe_type == MAC_BIBA_TYPE_EQUAL || b->mbe_type == MAC_BIBA_TYPE_EQUAL) return (1); return (a->mbe_type == b->mbe_type && a->mbe_grade == b->mbe_grade); } static int biba_equal_effective(struct mac_biba *a, struct mac_biba *b) { KASSERT((a->mb_flags & MAC_BIBA_FLAG_EFFECTIVE) != 0, ("biba_equal_effective: a not effective")); KASSERT((b->mb_flags & MAC_BIBA_FLAG_EFFECTIVE) != 0, ("biba_equal_effective: b not effective")); return (biba_equal_element(&a->mb_effective, &b->mb_effective)); } static int biba_contains_equal(struct mac_biba *mb) { if (mb->mb_flags & MAC_BIBA_FLAG_EFFECTIVE) { if (mb->mb_effective.mbe_type == MAC_BIBA_TYPE_EQUAL) return (1); } if (mb->mb_flags & MAC_BIBA_FLAG_RANGE) { if (mb->mb_rangelow.mbe_type == MAC_BIBA_TYPE_EQUAL) return (1); if (mb->mb_rangehigh.mbe_type == MAC_BIBA_TYPE_EQUAL) return (1); } return (0); } static int biba_subject_privileged(struct mac_biba *mb) { KASSERT((mb->mb_flags & MAC_BIBA_FLAGS_BOTH) == MAC_BIBA_FLAGS_BOTH, ("biba_subject_privileged: subject doesn't have both labels")); /* If the effective is EQUAL, it's ok. */ if (mb->mb_effective.mbe_type == MAC_BIBA_TYPE_EQUAL) return (0); /* If either range endpoint is EQUAL, it's ok. */ if (mb->mb_rangelow.mbe_type == MAC_BIBA_TYPE_EQUAL || mb->mb_rangehigh.mbe_type == MAC_BIBA_TYPE_EQUAL) return (0); /* If the range is low-high, it's ok. */ if (mb->mb_rangelow.mbe_type == MAC_BIBA_TYPE_LOW && mb->mb_rangehigh.mbe_type == MAC_BIBA_TYPE_HIGH) return (0); /* It's not ok. */ return (EPERM); } static int biba_high_effective(struct mac_biba *mb) { KASSERT((mb->mb_flags & MAC_BIBA_FLAG_EFFECTIVE) != 0, ("biba_equal_effective: mb not effective")); return (mb->mb_effective.mbe_type == MAC_BIBA_TYPE_HIGH); } static int biba_valid(struct mac_biba *mb) { if (mb->mb_flags & MAC_BIBA_FLAG_EFFECTIVE) { switch (mb->mb_effective.mbe_type) { case MAC_BIBA_TYPE_GRADE: break; case MAC_BIBA_TYPE_EQUAL: case MAC_BIBA_TYPE_HIGH: case MAC_BIBA_TYPE_LOW: if (mb->mb_effective.mbe_grade != 0 || !MAC_BIBA_BIT_SET_EMPTY( mb->mb_effective.mbe_compartments)) return (EINVAL); break; default: return (EINVAL); } } else { if (mb->mb_effective.mbe_type != MAC_BIBA_TYPE_UNDEF) return (EINVAL); } if (mb->mb_flags & MAC_BIBA_FLAG_RANGE) { switch (mb->mb_rangelow.mbe_type) { case MAC_BIBA_TYPE_GRADE: break; case MAC_BIBA_TYPE_EQUAL: case MAC_BIBA_TYPE_HIGH: case MAC_BIBA_TYPE_LOW: if (mb->mb_rangelow.mbe_grade != 0 || !MAC_BIBA_BIT_SET_EMPTY( mb->mb_rangelow.mbe_compartments)) return (EINVAL); break; default: return (EINVAL); } switch (mb->mb_rangehigh.mbe_type) { case MAC_BIBA_TYPE_GRADE: break; case MAC_BIBA_TYPE_EQUAL: case MAC_BIBA_TYPE_HIGH: case MAC_BIBA_TYPE_LOW: if (mb->mb_rangehigh.mbe_grade != 0 || !MAC_BIBA_BIT_SET_EMPTY( mb->mb_rangehigh.mbe_compartments)) return (EINVAL); break; default: return (EINVAL); } if (!biba_dominate_element(&mb->mb_rangehigh, &mb->mb_rangelow)) return (EINVAL); } else { if (mb->mb_rangelow.mbe_type != MAC_BIBA_TYPE_UNDEF || mb->mb_rangehigh.mbe_type != MAC_BIBA_TYPE_UNDEF) return (EINVAL); } return (0); } static void biba_set_range(struct mac_biba *mb, u_short typelow, u_short gradelow, u_char *compartmentslow, u_short typehigh, u_short gradehigh, u_char *compartmentshigh) { mb->mb_rangelow.mbe_type = typelow; mb->mb_rangelow.mbe_grade = gradelow; if (compartmentslow != NULL) memcpy(mb->mb_rangelow.mbe_compartments, compartmentslow, sizeof(mb->mb_rangelow.mbe_compartments)); mb->mb_rangehigh.mbe_type = typehigh; mb->mb_rangehigh.mbe_grade = gradehigh; if (compartmentshigh != NULL) memcpy(mb->mb_rangehigh.mbe_compartments, compartmentshigh, sizeof(mb->mb_rangehigh.mbe_compartments)); mb->mb_flags |= MAC_BIBA_FLAG_RANGE; } static void biba_set_effective(struct mac_biba *mb, u_short type, u_short grade, u_char *compartments) { mb->mb_effective.mbe_type = type; mb->mb_effective.mbe_grade = grade; if (compartments != NULL) memcpy(mb->mb_effective.mbe_compartments, compartments, sizeof(mb->mb_effective.mbe_compartments)); mb->mb_flags |= MAC_BIBA_FLAG_EFFECTIVE; } static void biba_copy_range(struct mac_biba *labelfrom, struct mac_biba *labelto) { KASSERT((labelfrom->mb_flags & MAC_BIBA_FLAG_RANGE) != 0, ("biba_copy_range: labelfrom not range")); labelto->mb_rangelow = labelfrom->mb_rangelow; labelto->mb_rangehigh = labelfrom->mb_rangehigh; labelto->mb_flags |= MAC_BIBA_FLAG_RANGE; } static void biba_copy_effective(struct mac_biba *labelfrom, struct mac_biba *labelto) { KASSERT((labelfrom->mb_flags & MAC_BIBA_FLAG_EFFECTIVE) != 0, ("biba_copy_effective: labelfrom not effective")); labelto->mb_effective = labelfrom->mb_effective; labelto->mb_flags |= MAC_BIBA_FLAG_EFFECTIVE; } static void biba_copy(struct mac_biba *source, struct mac_biba *dest) { if (source->mb_flags & MAC_BIBA_FLAG_EFFECTIVE) biba_copy_effective(source, dest); if (source->mb_flags & MAC_BIBA_FLAG_RANGE) biba_copy_range(source, dest); } /* * Policy module operations. */ static void biba_init(struct mac_policy_conf *conf) { zone_biba = uma_zcreate("mac_biba", sizeof(struct mac_biba), NULL, NULL, NULL, NULL, UMA_ALIGN_PTR, 0); } /* * Label operations. */ static void biba_init_label(struct label *label) { SLOT_SET(label, biba_alloc(M_WAITOK)); } static int biba_init_label_waitcheck(struct label *label, int flag) { SLOT_SET(label, biba_alloc(flag)); if (SLOT(label) == NULL) return (ENOMEM); return (0); } static void biba_destroy_label(struct label *label) { biba_free(SLOT(label)); SLOT_SET(label, NULL); } /* * biba_element_to_string() accepts an sbuf and Biba element. It converts * the Biba element to a string and stores the result in the sbuf; if there * isn't space in the sbuf, -1 is returned. */ static int biba_element_to_string(struct sbuf *sb, struct mac_biba_element *element) { int i, first; switch (element->mbe_type) { case MAC_BIBA_TYPE_HIGH: return (sbuf_printf(sb, "high")); case MAC_BIBA_TYPE_LOW: return (sbuf_printf(sb, "low")); case MAC_BIBA_TYPE_EQUAL: return (sbuf_printf(sb, "equal")); case MAC_BIBA_TYPE_GRADE: if (sbuf_printf(sb, "%d", element->mbe_grade) == -1) return (-1); first = 1; for (i = 1; i <= MAC_BIBA_MAX_COMPARTMENTS; i++) { if (MAC_BIBA_BIT_TEST(i, element->mbe_compartments)) { if (first) { if (sbuf_putc(sb, ':') == -1) return (-1); if (sbuf_printf(sb, "%d", i) == -1) return (-1); first = 0; } else { if (sbuf_printf(sb, "+%d", i) == -1) return (-1); } } } return (0); default: panic("biba_element_to_string: invalid type (%d)", element->mbe_type); } } /* * biba_to_string() converts a Biba label to a string, and places the results * in the passed sbuf. It returns 0 on success, or EINVAL if there isn't * room in the sbuf. Note: the sbuf will be modified even in a failure case, * so the caller may need to revert the sbuf by restoring the offset if * that's undesired. */ static int biba_to_string(struct sbuf *sb, struct mac_biba *mb) { if (mb->mb_flags & MAC_BIBA_FLAG_EFFECTIVE) { if (biba_element_to_string(sb, &mb->mb_effective) == -1) return (EINVAL); } if (mb->mb_flags & MAC_BIBA_FLAG_RANGE) { if (sbuf_putc(sb, '(') == -1) return (EINVAL); if (biba_element_to_string(sb, &mb->mb_rangelow) == -1) return (EINVAL); if (sbuf_putc(sb, '-') == -1) return (EINVAL); if (biba_element_to_string(sb, &mb->mb_rangehigh) == -1) return (EINVAL); if (sbuf_putc(sb, ')') == -1) return (EINVAL); } return (0); } static int biba_externalize_label(struct label *label, char *element_name, struct sbuf *sb, int *claimed) { struct mac_biba *mb; if (strcmp(MAC_BIBA_LABEL_NAME, element_name) != 0) return (0); (*claimed)++; mb = SLOT(label); return (biba_to_string(sb, mb)); } static int biba_parse_element(struct mac_biba_element *element, char *string) { char *compartment, *end, *grade; int value; if (strcmp(string, "high") == 0 || strcmp(string, "hi") == 0) { element->mbe_type = MAC_BIBA_TYPE_HIGH; element->mbe_grade = MAC_BIBA_TYPE_UNDEF; } else if (strcmp(string, "low") == 0 || strcmp(string, "lo") == 0) { element->mbe_type = MAC_BIBA_TYPE_LOW; element->mbe_grade = MAC_BIBA_TYPE_UNDEF; } else if (strcmp(string, "equal") == 0 || strcmp(string, "eq") == 0) { element->mbe_type = MAC_BIBA_TYPE_EQUAL; element->mbe_grade = MAC_BIBA_TYPE_UNDEF; } else { element->mbe_type = MAC_BIBA_TYPE_GRADE; /* * Numeric grade piece of the element. */ grade = strsep(&string, ":"); value = strtol(grade, &end, 10); if (end == grade || *end != '\0') return (EINVAL); if (value < 0 || value > 65535) return (EINVAL); element->mbe_grade = value; /* * Optional compartment piece of the element. If none * are included, we assume that the label has no * compartments. */ if (string == NULL) return (0); if (*string == '\0') return (0); while ((compartment = strsep(&string, "+")) != NULL) { value = strtol(compartment, &end, 10); if (compartment == end || *end != '\0') return (EINVAL); if (value < 1 || value > MAC_BIBA_MAX_COMPARTMENTS) return (EINVAL); MAC_BIBA_BIT_SET(value, element->mbe_compartments); } } return (0); } /* * Note: destructively consumes the string, make a local copy before * calling if that's a problem. */ static int biba_parse(struct mac_biba *mb, char *string) { char *rangehigh, *rangelow, *effective; int error; effective = strsep(&string, "("); if (*effective == '\0') effective = NULL; if (string != NULL) { rangelow = strsep(&string, "-"); if (string == NULL) return (EINVAL); rangehigh = strsep(&string, ")"); if (string == NULL) return (EINVAL); if (*string != '\0') return (EINVAL); } else { rangelow = NULL; rangehigh = NULL; } KASSERT((rangelow != NULL && rangehigh != NULL) || (rangelow == NULL && rangehigh == NULL), ("biba_parse: range mismatch")); bzero(mb, sizeof(*mb)); if (effective != NULL) { error = biba_parse_element(&mb->mb_effective, effective); if (error) return (error); mb->mb_flags |= MAC_BIBA_FLAG_EFFECTIVE; } if (rangelow != NULL) { error = biba_parse_element(&mb->mb_rangelow, rangelow); if (error) return (error); error = biba_parse_element(&mb->mb_rangehigh, rangehigh); if (error) return (error); mb->mb_flags |= MAC_BIBA_FLAG_RANGE; } error = biba_valid(mb); if (error) return (error); return (0); } static int biba_internalize_label(struct label *label, char *element_name, char *element_data, int *claimed) { struct mac_biba *mb, mb_temp; int error; if (strcmp(MAC_BIBA_LABEL_NAME, element_name) != 0) return (0); (*claimed)++; error = biba_parse(&mb_temp, element_data); if (error) return (error); mb = SLOT(label); *mb = mb_temp; return (0); } static void biba_copy_label(struct label *src, struct label *dest) { *SLOT(dest) = *SLOT(src); } /* * Object-specific entry point implementations are sorted alphabetically by * object type name and then by operation. */ static int biba_bpfdesc_check_receive(struct bpf_d *d, struct label *dlabel, struct ifnet *ifp, struct label *ifplabel) { struct mac_biba *a, *b; if (!biba_enabled) return (0); a = SLOT(dlabel); b = SLOT(ifplabel); if (biba_equal_effective(a, b)) return (0); return (EACCES); } static void biba_bpfdesc_create(struct ucred *cred, struct bpf_d *d, struct label *dlabel) { struct mac_biba *source, *dest; source = SLOT(cred->cr_label); dest = SLOT(dlabel); biba_copy_effective(source, dest); } static void biba_bpfdesc_create_mbuf(struct bpf_d *d, struct label *dlabel, struct mbuf *m, struct label *mlabel) { struct mac_biba *source, *dest; source = SLOT(dlabel); dest = SLOT(mlabel); biba_copy_effective(source, dest); } static int biba_cred_check_relabel(struct ucred *cred, struct label *newlabel) { struct mac_biba *subj, *new; int error; subj = SLOT(cred->cr_label); new = SLOT(newlabel); /* * If there is a Biba label update for the credential, it may * be an update of the effective, range, or both. */ error = biba_atmostflags(new, MAC_BIBA_FLAGS_BOTH); if (error) return (error); /* * If the Biba label is to be changed, authorize as appropriate. */ if (new->mb_flags & MAC_BIBA_FLAGS_BOTH) { /* * If the change request modifies both the Biba label * effective and range, check that the new effective will be * in the new range. */ if ((new->mb_flags & MAC_BIBA_FLAGS_BOTH) == MAC_BIBA_FLAGS_BOTH && !biba_effective_in_range(new, new)) return (EINVAL); /* * To change the Biba effective label on a credential, the * new effective label must be in the current range. */ if (new->mb_flags & MAC_BIBA_FLAG_EFFECTIVE && !biba_effective_in_range(new, subj)) return (EPERM); /* * To change the Biba range on a credential, the new range * label must be in the current range. */ if (new->mb_flags & MAC_BIBA_FLAG_RANGE && !biba_range_in_range(new, subj)) return (EPERM); /* * To have EQUAL in any component of the new credential Biba * label, the subject must already have EQUAL in their label. */ if (biba_contains_equal(new)) { error = biba_subject_privileged(subj); if (error) return (error); } } return (0); } static int biba_cred_check_visible(struct ucred *u1, struct ucred *u2) { struct mac_biba *subj, *obj; if (!biba_enabled) return (0); subj = SLOT(u1->cr_label); obj = SLOT(u2->cr_label); /* XXX: range */ if (!biba_dominate_effective(obj, subj)) return (ESRCH); return (0); } static void biba_cred_relabel(struct ucred *cred, struct label *newlabel) { struct mac_biba *source, *dest; source = SLOT(newlabel); dest = SLOT(cred->cr_label); biba_copy(source, dest); } static void biba_devfs_create_device(struct ucred *cred, struct mount *mp, struct cdev *dev, struct devfs_dirent *de, struct label *delabel) { struct mac_biba *mb; int biba_type; mb = SLOT(delabel); if (strcmp(dev->si_name, "null") == 0 || strcmp(dev->si_name, "zero") == 0 || strcmp(dev->si_name, "random") == 0 || strncmp(dev->si_name, "fd/", strlen("fd/")) == 0) biba_type = MAC_BIBA_TYPE_EQUAL; else if (ptys_equal && (strncmp(dev->si_name, "ttyp", strlen("ttyp")) == 0 || strncmp(dev->si_name, "ptyp", strlen("ptyp")) == 0)) biba_type = MAC_BIBA_TYPE_EQUAL; else biba_type = MAC_BIBA_TYPE_HIGH; biba_set_effective(mb, biba_type, 0, NULL); } static void biba_devfs_create_directory(struct mount *mp, char *dirname, int dirnamelen, struct devfs_dirent *de, struct label *delabel) { struct mac_biba *mb; mb = SLOT(delabel); biba_set_effective(mb, MAC_BIBA_TYPE_HIGH, 0, NULL); } static void biba_devfs_create_symlink(struct ucred *cred, struct mount *mp, struct devfs_dirent *dd, struct label *ddlabel, struct devfs_dirent *de, struct label *delabel) { struct mac_biba *source, *dest; source = SLOT(cred->cr_label); dest = SLOT(delabel); biba_copy_effective(source, dest); } static void biba_devfs_update(struct mount *mp, struct devfs_dirent *de, struct label *delabel, struct vnode *vp, struct label *vplabel) { struct mac_biba *source, *dest; source = SLOT(vplabel); dest = SLOT(delabel); biba_copy(source, dest); } static void biba_devfs_vnode_associate(struct mount *mp, struct label *mntlabel, struct devfs_dirent *de, struct label *delabel, struct vnode *vp, struct label *vplabel) { struct mac_biba *source, *dest; source = SLOT(delabel); dest = SLOT(vplabel); biba_copy_effective(source, dest); } static int biba_ifnet_check_relabel(struct ucred *cred, struct ifnet *ifp, struct label *ifplabel, struct label *newlabel) { struct mac_biba *subj, *new; int error; subj = SLOT(cred->cr_label); new = SLOT(newlabel); /* * If there is a Biba label update for the interface, it may be an * update of the effective, range, or both. */ error = biba_atmostflags(new, MAC_BIBA_FLAGS_BOTH); if (error) return (error); /* * Relabling network interfaces requires Biba privilege. */ error = biba_subject_privileged(subj); if (error) return (error); return (0); } static int biba_ifnet_check_transmit(struct ifnet *ifp, struct label *ifplabel, struct mbuf *m, struct label *mlabel) { struct mac_biba *p, *i; if (!biba_enabled) return (0); p = SLOT(mlabel); i = SLOT(ifplabel); return (biba_effective_in_range(p, i) ? 0 : EACCES); } static void biba_ifnet_create(struct ifnet *ifp, struct label *ifplabel) { char tifname[IFNAMSIZ], *p, *q; char tiflist[sizeof(trusted_interfaces)]; struct mac_biba *dest; int len, type; dest = SLOT(ifplabel); if (ifp->if_type == IFT_LOOP || interfaces_equal != 0) { type = MAC_BIBA_TYPE_EQUAL; goto set; } if (trust_all_interfaces) { type = MAC_BIBA_TYPE_HIGH; goto set; } type = MAC_BIBA_TYPE_LOW; if (trusted_interfaces[0] == '\0' || !strvalid(trusted_interfaces, sizeof(trusted_interfaces))) goto set; bzero(tiflist, sizeof(tiflist)); for (p = trusted_interfaces, q = tiflist; *p != '\0'; p++, q++) if(*p != ' ' && *p != '\t') *q = *p; for (p = q = tiflist;; p++) { if (*p == ',' || *p == '\0') { len = p - q; if (len < IFNAMSIZ) { bzero(tifname, sizeof(tifname)); bcopy(q, tifname, len); if (strcmp(tifname, ifp->if_xname) == 0) { type = MAC_BIBA_TYPE_HIGH; break; } } else { *p = '\0'; printf("mac_biba warning: interface name " "\"%s\" is too long (must be < %d)\n", q, IFNAMSIZ); } if (*p == '\0') break; q = p + 1; } } set: biba_set_effective(dest, type, 0, NULL); biba_set_range(dest, type, 0, NULL, type, 0, NULL); } static void biba_ifnet_create_mbuf(struct ifnet *ifp, struct label *ifplabel, struct mbuf *m, struct label *mlabel) { struct mac_biba *source, *dest; source = SLOT(ifplabel); dest = SLOT(mlabel); biba_copy_effective(source, dest); } static void biba_ifnet_relabel(struct ucred *cred, struct ifnet *ifp, struct label *ifplabel, struct label *newlabel) { struct mac_biba *source, *dest; source = SLOT(newlabel); dest = SLOT(ifplabel); biba_copy(source, dest); } static int biba_inpcb_check_deliver(struct inpcb *inp, struct label *inplabel, struct mbuf *m, struct label *mlabel) { struct mac_biba *p, *i; if (!biba_enabled) return (0); p = SLOT(mlabel); i = SLOT(inplabel); return (biba_equal_effective(p, i) ? 0 : EACCES); } static void biba_inpcb_create(struct socket *so, struct label *solabel, struct inpcb *inp, struct label *inplabel) { struct mac_biba *source, *dest; source = SLOT(solabel); dest = SLOT(inplabel); biba_copy_effective(source, dest); } static void biba_inpcb_create_mbuf(struct inpcb *inp, struct label *inplabel, struct mbuf *m, struct label *mlabel) { struct mac_biba *source, *dest; source = SLOT(inplabel); dest = SLOT(mlabel); biba_copy_effective(source, dest); } static void biba_inpcb_sosetlabel(struct socket *so, struct label *solabel, struct inpcb *inp, struct label *inplabel) { struct mac_biba *source, *dest; source = SLOT(solabel); dest = SLOT(inplabel); biba_copy(source, dest); } static void biba_ipq_create(struct mbuf *m, struct label *mlabel, struct ipq *q, struct label *qlabel) { struct mac_biba *source, *dest; source = SLOT(mlabel); dest = SLOT(qlabel); biba_copy_effective(source, dest); } static int biba_ipq_match(struct mbuf *m, struct label *mlabel, struct ipq *q, struct label *qlabel) { struct mac_biba *a, *b; a = SLOT(qlabel); b = SLOT(mlabel); return (biba_equal_effective(a, b)); } static void biba_ipq_reassemble(struct ipq *q, struct label *qlabel, struct mbuf *m, struct label *mlabel) { struct mac_biba *source, *dest; source = SLOT(qlabel); dest = SLOT(mlabel); /* Just use the head, since we require them all to match. */ biba_copy_effective(source, dest); } static void biba_ipq_update(struct mbuf *m, struct label *mlabel, struct ipq *q, struct label *qlabel) { /* NOOP: we only accept matching labels, so no need to update */ } static int biba_kld_check_load(struct ucred *cred, struct vnode *vp, struct label *vplabel) { struct mac_biba *subj, *obj; int error; if (!biba_enabled) return (0); subj = SLOT(cred->cr_label); error = biba_subject_privileged(subj); if (error) return (error); obj = SLOT(vplabel); if (!biba_high_effective(obj)) return (EACCES); return (0); } static int biba_mount_check_stat(struct ucred *cred, struct mount *mp, struct label *mplabel) { struct mac_biba *subj, *obj; if (!biba_enabled) return (0); subj = SLOT(cred->cr_label); obj = SLOT(mplabel); if (!biba_dominate_effective(obj, subj)) return (EACCES); return (0); } static void biba_mount_create(struct ucred *cred, struct mount *mp, struct label *mplabel) { struct mac_biba *source, *dest; source = SLOT(cred->cr_label); dest = SLOT(mplabel); biba_copy_effective(source, dest); } static void biba_netatalk_aarp_send(struct ifnet *ifp, struct label *ifplabel, struct mbuf *m, struct label *mlabel) { struct mac_biba *dest; dest = SLOT(mlabel); biba_set_effective(dest, MAC_BIBA_TYPE_EQUAL, 0, NULL); } static void biba_netinet_arp_send(struct ifnet *ifp, struct label *ifplabel, struct mbuf *m, struct label *mlabel) { struct mac_biba *dest; dest = SLOT(mlabel); biba_set_effective(dest, MAC_BIBA_TYPE_EQUAL, 0, NULL); } static void biba_netinet_firewall_reply(struct mbuf *mrecv, struct label *mrecvlabel, struct mbuf *msend, struct label *msendlabel) { struct mac_biba *source, *dest; source = SLOT(mrecvlabel); dest = SLOT(msendlabel); biba_copy_effective(source, dest); } static void biba_netinet_firewall_send(struct mbuf *m, struct label *mlabel) { struct mac_biba *dest; dest = SLOT(mlabel); /* XXX: where is the label for the firewall really coming from? */ biba_set_effective(dest, MAC_BIBA_TYPE_EQUAL, 0, NULL); } static void biba_netinet_fragment(struct mbuf *m, struct label *mlabel, struct mbuf *frag, struct label *fraglabel) { struct mac_biba *source, *dest; source = SLOT(mlabel); dest = SLOT(fraglabel); biba_copy_effective(source, dest); } static void biba_netinet_icmp_reply(struct mbuf *mrecv, struct label *mrecvlabel, struct mbuf *msend, struct label *msendlabel) { struct mac_biba *source, *dest; source = SLOT(mrecvlabel); dest = SLOT(msendlabel); biba_copy_effective(source, dest); } static void biba_netinet_igmp_send(struct ifnet *ifp, struct label *ifplabel, struct mbuf *m, struct label *mlabel) { struct mac_biba *dest; dest = SLOT(mlabel); biba_set_effective(dest, MAC_BIBA_TYPE_EQUAL, 0, NULL); } static void biba_netinet6_nd6_send(struct ifnet *ifp, struct label *ifplabel, struct mbuf *m, struct label *mlabel) { struct mac_biba *dest; dest = SLOT(mlabel); biba_set_effective(dest, MAC_BIBA_TYPE_EQUAL, 0, NULL); } static int biba_pipe_check_ioctl(struct ucred *cred, struct pipepair *pp, struct label *pplabel, unsigned long cmd, void /* caddr_t */ *data) { if(!biba_enabled) return (0); /* XXX: This will be implemented soon... */ return (0); } static int biba_pipe_check_poll(struct ucred *cred, struct pipepair *pp, struct label *pplabel) { struct mac_biba *subj, *obj; if (!biba_enabled) return (0); subj = SLOT(cred->cr_label); obj = SLOT(pplabel); if (!biba_dominate_effective(obj, subj)) return (EACCES); return (0); } static int biba_pipe_check_read(struct ucred *cred, struct pipepair *pp, struct label *pplabel) { struct mac_biba *subj, *obj; if (!biba_enabled) return (0); subj = SLOT(cred->cr_label); obj = SLOT(pplabel); if (!biba_dominate_effective(obj, subj)) return (EACCES); return (0); } static int biba_pipe_check_relabel(struct ucred *cred, struct pipepair *pp, struct label *pplabel, struct label *newlabel) { struct mac_biba *subj, *obj, *new; int error; new = SLOT(newlabel); subj = SLOT(cred->cr_label); obj = SLOT(pplabel); /* * If there is a Biba label update for a pipe, it must be a effective * update. */ error = biba_atmostflags(new, MAC_BIBA_FLAG_EFFECTIVE); if (error) return (error); /* * To perform a relabel of a pipe (Biba label or not), Biba must * authorize the relabel. */ if (!biba_effective_in_range(obj, subj)) return (EPERM); /* * If the Biba label is to be changed, authorize as appropriate. */ if (new->mb_flags & MAC_BIBA_FLAG_EFFECTIVE) { /* * To change the Biba label on a pipe, the new pipe label * must be in the subject range. */ if (!biba_effective_in_range(new, subj)) return (EPERM); /* * To change the Biba label on a pipe to be EQUAL, the * subject must have appropriate privilege. */ if (biba_contains_equal(new)) { error = biba_subject_privileged(subj); if (error) return (error); } } return (0); } static int biba_pipe_check_stat(struct ucred *cred, struct pipepair *pp, struct label *pplabel) { struct mac_biba *subj, *obj; if (!biba_enabled) return (0); subj = SLOT(cred->cr_label); obj = SLOT(pplabel); if (!biba_dominate_effective(obj, subj)) return (EACCES); return (0); } static int biba_pipe_check_write(struct ucred *cred, struct pipepair *pp, struct label *pplabel) { struct mac_biba *subj, *obj; if (!biba_enabled) return (0); subj = SLOT(cred->cr_label); obj = SLOT(pplabel); if (!biba_dominate_effective(subj, obj)) return (EACCES); return (0); } static void biba_pipe_create(struct ucred *cred, struct pipepair *pp, struct label *pplabel) { struct mac_biba *source, *dest; source = SLOT(cred->cr_label); dest = SLOT(pplabel); biba_copy_effective(source, dest); } static void biba_pipe_relabel(struct ucred *cred, struct pipepair *pp, struct label *pplabel, struct label *newlabel) { struct mac_biba *source, *dest; source = SLOT(newlabel); dest = SLOT(pplabel); biba_copy(source, dest); } static int biba_posixsem_check_write(struct ucred *cred, struct ksem *ks, struct label *kslabel) { struct mac_biba *subj, *obj; if (!biba_enabled) return (0); subj = SLOT(cred->cr_label); obj = SLOT(kslabel); if (!biba_dominate_effective(subj, obj)) return (EACCES); return (0); } static int biba_posixsem_check_rdonly(struct ucred *cred, struct ksem *ks, struct label *kslabel) { struct mac_biba *subj, *obj; if (!biba_enabled) return (0); subj = SLOT(cred->cr_label); obj = SLOT(kslabel); if (!biba_dominate_effective(obj, subj)) return (EACCES); return (0); } static void biba_posixsem_create(struct ucred *cred, struct ksem *ks, struct label *kslabel) { struct mac_biba *source, *dest; source = SLOT(cred->cr_label); dest = SLOT(kslabel); biba_copy_effective(source, dest); } /* * Some system privileges are allowed regardless of integrity grade; others * are allowed only when running with privilege with respect to the Biba * policy as they might otherwise allow bypassing of the integrity policy. */ static int biba_priv_check(struct ucred *cred, int priv) { struct mac_biba *subj; int error; if (!biba_enabled) return (0); /* * Exempt only specific privileges from the Biba integrity policy. */ switch (priv) { case PRIV_KTRACE: case PRIV_MSGBUF: /* * Allow processes to manipulate basic process audit properties, and * to submit audit records. */ case PRIV_AUDIT_GETAUDIT: case PRIV_AUDIT_SETAUDIT: case PRIV_AUDIT_SUBMIT: /* * Allow processes to manipulate their regular UNIX credentials. */ case PRIV_CRED_SETUID: case PRIV_CRED_SETEUID: case PRIV_CRED_SETGID: case PRIV_CRED_SETEGID: case PRIV_CRED_SETGROUPS: case PRIV_CRED_SETREUID: case PRIV_CRED_SETREGID: case PRIV_CRED_SETRESUID: case PRIV_CRED_SETRESGID: /* * Allow processes to perform system monitoring. */ case PRIV_SEEOTHERGIDS: case PRIV_SEEOTHERUIDS: break; /* * Allow access to general process debugging facilities. We * separately control debugging based on MAC label. */ case PRIV_DEBUG_DIFFCRED: case PRIV_DEBUG_SUGID: case PRIV_DEBUG_UNPRIV: /* * Allow manipulating jails. */ case PRIV_JAIL_ATTACH: /* * Allow privilege with respect to the Partition policy, but not the * Privs policy. */ case PRIV_MAC_PARTITION: /* * Allow privilege with respect to process resource limits and login * context. */ case PRIV_PROC_LIMIT: case PRIV_PROC_SETLOGIN: case PRIV_PROC_SETRLIMIT: /* * Allow System V and POSIX IPC privileges. */ case PRIV_IPC_READ: case PRIV_IPC_WRITE: case PRIV_IPC_ADMIN: case PRIV_IPC_MSGSIZE: case PRIV_MQ_ADMIN: /* * Allow certain scheduler manipulations -- possibly this should be * controlled by more fine-grained policy, as potentially low * integrity processes can deny CPU to higher integrity ones. */ case PRIV_SCHED_DIFFCRED: case PRIV_SCHED_SETPRIORITY: case PRIV_SCHED_RTPRIO: case PRIV_SCHED_SETPOLICY: case PRIV_SCHED_SET: case PRIV_SCHED_SETPARAM: /* * More IPC privileges. */ case PRIV_SEM_WRITE: /* * Allow signaling privileges subject to integrity policy. */ case PRIV_SIGNAL_DIFFCRED: case PRIV_SIGNAL_SUGID: /* * Allow access to only limited sysctls from lower integrity levels; * piggy-back on the Jail definition. */ case PRIV_SYSCTL_WRITEJAIL: /* * Allow TTY-based privileges, subject to general device access using * labels on TTY device nodes, but not console privilege. */ case PRIV_TTY_DRAINWAIT: case PRIV_TTY_DTRWAIT: case PRIV_TTY_EXCLUSIVE: case PRIV_TTY_PRISON: case PRIV_TTY_STI: case PRIV_TTY_SETA: /* * Grant most VFS privileges, as almost all are in practice bounded * by more specific checks using labels. */ case PRIV_VFS_READ: case PRIV_VFS_WRITE: case PRIV_VFS_ADMIN: case PRIV_VFS_EXEC: case PRIV_VFS_LOOKUP: case PRIV_VFS_CHFLAGS_DEV: case PRIV_VFS_CHOWN: case PRIV_VFS_CHROOT: case PRIV_VFS_RETAINSUGID: case PRIV_VFS_EXCEEDQUOTA: case PRIV_VFS_FCHROOT: case PRIV_VFS_FHOPEN: case PRIV_VFS_FHSTATFS: case PRIV_VFS_GENERATION: case PRIV_VFS_GETFH: case PRIV_VFS_GETQUOTA: case PRIV_VFS_LINK: case PRIV_VFS_MOUNT: case PRIV_VFS_MOUNT_OWNER: case PRIV_VFS_MOUNT_PERM: case PRIV_VFS_MOUNT_SUIDDIR: case PRIV_VFS_MOUNT_NONUSER: case PRIV_VFS_SETGID: case PRIV_VFS_STICKYFILE: case PRIV_VFS_SYSFLAGS: case PRIV_VFS_UNMOUNT: /* * Allow VM privileges; it would be nice if these were subject to * resource limits. */ case PRIV_VM_MADV_PROTECT: case PRIV_VM_MLOCK: case PRIV_VM_MUNLOCK: /* * Allow some but not all network privileges. In general, dont allow * reconfiguring the network stack, just normal use. */ case PRIV_NETATALK_RESERVEDPORT: case PRIV_NETINET_RESERVEDPORT: case PRIV_NETINET_RAW: case PRIV_NETINET_REUSEPORT: case PRIV_NETIPX_RESERVEDPORT: case PRIV_NETIPX_RAW: break; /* * All remaining system privileges are allow only if the process * holds privilege with respect to the Biba policy. */ default: subj = SLOT(cred->cr_label); error = biba_subject_privileged(subj); if (error) return (error); } return (0); } static void biba_proc_associate_nfsd(struct ucred *cred) { struct mac_biba *label; label = SLOT(cred->cr_label); biba_set_effective(label, MAC_BIBA_TYPE_LOW, 0, NULL); biba_set_range(label, MAC_BIBA_TYPE_LOW, 0, NULL, MAC_BIBA_TYPE_HIGH, 0, NULL); } static int biba_proc_check_debug(struct ucred *cred, struct proc *p) { struct mac_biba *subj, *obj; if (!biba_enabled) return (0); subj = SLOT(cred->cr_label); obj = SLOT(p->p_ucred->cr_label); /* XXX: range checks */ if (!biba_dominate_effective(obj, subj)) return (ESRCH); if (!biba_dominate_effective(subj, obj)) return (EACCES); return (0); } static int biba_proc_check_sched(struct ucred *cred, struct proc *p) { struct mac_biba *subj, *obj; if (!biba_enabled) return (0); subj = SLOT(cred->cr_label); obj = SLOT(p->p_ucred->cr_label); /* XXX: range checks */ if (!biba_dominate_effective(obj, subj)) return (ESRCH); if (!biba_dominate_effective(subj, obj)) return (EACCES); return (0); } static int biba_proc_check_signal(struct ucred *cred, struct proc *p, int signum) { struct mac_biba *subj, *obj; if (!biba_enabled) return (0); subj = SLOT(cred->cr_label); obj = SLOT(p->p_ucred->cr_label); /* XXX: range checks */ if (!biba_dominate_effective(obj, subj)) return (ESRCH); if (!biba_dominate_effective(subj, obj)) return (EACCES); return (0); } static int biba_socket_check_deliver(struct socket *so, struct label *solabel, struct mbuf *m, struct label *mlabel) { struct mac_biba *p, *s; if (!biba_enabled) return (0); p = SLOT(mlabel); s = SLOT(solabel); return (biba_equal_effective(p, s) ? 0 : EACCES); } static void biba_proc_create_init(struct ucred *cred) { struct mac_biba *dest; dest = SLOT(cred->cr_label); biba_set_effective(dest, MAC_BIBA_TYPE_HIGH, 0, NULL); biba_set_range(dest, MAC_BIBA_TYPE_LOW, 0, NULL, MAC_BIBA_TYPE_HIGH, 0, NULL); } static void biba_proc_create_swapper(struct ucred *cred) { struct mac_biba *dest; dest = SLOT(cred->cr_label); biba_set_effective(dest, MAC_BIBA_TYPE_EQUAL, 0, NULL); biba_set_range(dest, MAC_BIBA_TYPE_LOW, 0, NULL, MAC_BIBA_TYPE_HIGH, 0, NULL); } static int biba_socket_check_relabel(struct ucred *cred, struct socket *so, struct label *solabel, struct label *newlabel) { struct mac_biba *subj, *obj, *new; int error; new = SLOT(newlabel); subj = SLOT(cred->cr_label); obj = SLOT(solabel); /* * If there is a Biba label update for the socket, it may be an * update of effective. */ error = biba_atmostflags(new, MAC_BIBA_FLAG_EFFECTIVE); if (error) return (error); /* * To relabel a socket, the old socket effective must be in the * subject range. */ if (!biba_effective_in_range(obj, subj)) return (EPERM); /* * If the Biba label is to be changed, authorize as appropriate. */ if (new->mb_flags & MAC_BIBA_FLAG_EFFECTIVE) { /* * To relabel a socket, the new socket effective must be in * the subject range. */ if (!biba_effective_in_range(new, subj)) return (EPERM); /* * To change the Biba label on the socket to contain EQUAL, * the subject must have appropriate privilege. */ if (biba_contains_equal(new)) { error = biba_subject_privileged(subj); if (error) return (error); } } return (0); } static int biba_socket_check_visible(struct ucred *cred, struct socket *so, struct label *solabel) { struct mac_biba *subj, *obj; if (!biba_enabled) return (0); subj = SLOT(cred->cr_label); obj = SLOT(solabel); if (!biba_dominate_effective(obj, subj)) return (ENOENT); return (0); } static void biba_socket_create(struct ucred *cred, struct socket *so, struct label *solabel) { struct mac_biba *source, *dest; source = SLOT(cred->cr_label); dest = SLOT(solabel); biba_copy_effective(source, dest); } static void biba_socket_create_mbuf(struct socket *so, struct label *solabel, struct mbuf *m, struct label *mlabel) { struct mac_biba *source, *dest; source = SLOT(solabel); dest = SLOT(mlabel); biba_copy_effective(source, dest); } static void biba_socket_newconn(struct socket *oldso, struct label *oldsolabel, struct socket *newso, struct label *newsolabel) { struct mac_biba *source, *dest; source = SLOT(oldsolabel); dest = SLOT(newsolabel); biba_copy_effective(source, dest); } static void biba_socket_relabel(struct ucred *cred, struct socket *so, struct label *solabel, struct label *newlabel) { struct mac_biba *source, *dest; source = SLOT(newlabel); dest = SLOT(solabel); biba_copy(source, dest); } static void biba_socketpeer_set_from_mbuf(struct mbuf *m, struct label *mlabel, struct socket *so, struct label *sopeerlabel) { struct mac_biba *source, *dest; source = SLOT(mlabel); dest = SLOT(sopeerlabel); biba_copy_effective(source, dest); } static void biba_socketpeer_set_from_socket(struct socket *oldso, struct label *oldsolabel, struct socket *newso, struct label *newsopeerlabel) { struct mac_biba *source, *dest; source = SLOT(oldsolabel); dest = SLOT(newsopeerlabel); biba_copy_effective(source, dest); } static void biba_syncache_create(struct label *label, struct inpcb *inp) { struct mac_biba *source, *dest; source = SLOT(inp->inp_label); dest = SLOT(label); biba_copy_effective(source, dest); } static void biba_syncache_create_mbuf(struct label *sc_label, struct mbuf *m, struct label *mlabel) { struct mac_biba *source, *dest; source = SLOT(sc_label); dest = SLOT(mlabel); biba_copy_effective(source, dest); } static int biba_system_check_acct(struct ucred *cred, struct vnode *vp, struct label *vplabel) { struct mac_biba *subj, *obj; int error; if (!biba_enabled) return (0); subj = SLOT(cred->cr_label); error = biba_subject_privileged(subj); if (error) return (error); if (vplabel == NULL) return (0); obj = SLOT(vplabel); if (!biba_high_effective(obj)) return (EACCES); return (0); } static int biba_system_check_auditctl(struct ucred *cred, struct vnode *vp, struct label *vplabel) { struct mac_biba *subj, *obj; int error; if (!biba_enabled) return (0); subj = SLOT(cred->cr_label); error = biba_subject_privileged(subj); if (error) return (error); if (vplabel == NULL) return (0); obj = SLOT(vplabel); if (!biba_high_effective(obj)) return (EACCES); return (0); } static int biba_system_check_auditon(struct ucred *cred, int cmd) { struct mac_biba *subj; int error; if (!biba_enabled) return (0); subj = SLOT(cred->cr_label); error = biba_subject_privileged(subj); if (error) return (error); return (0); } static int biba_system_check_swapoff(struct ucred *cred, struct vnode *vp, struct label *label) { struct mac_biba *subj; int error; if (!biba_enabled) return (0); subj = SLOT(cred->cr_label); error = biba_subject_privileged(subj); if (error) return (error); return (0); } static int biba_system_check_swapon(struct ucred *cred, struct vnode *vp, struct label *vplabel) { struct mac_biba *subj, *obj; int error; if (!biba_enabled) return (0); subj = SLOT(cred->cr_label); obj = SLOT(vplabel); error = biba_subject_privileged(subj); if (error) return (error); if (!biba_high_effective(obj)) return (EACCES); return (0); } static int biba_system_check_sysctl(struct ucred *cred, struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req) { struct mac_biba *subj; int error; if (!biba_enabled) return (0); subj = SLOT(cred->cr_label); /* * Treat sysctl variables without CTLFLAG_ANYBODY flag as biba/high, * but also require privilege to change them. */ if (req->newptr != NULL && (oidp->oid_kind & CTLFLAG_ANYBODY) == 0) { if (!biba_subject_dominate_high(subj)) return (EACCES); error = biba_subject_privileged(subj); if (error) return (error); } return (0); } static void biba_sysvmsg_cleanup(struct label *msglabel) { bzero(SLOT(msglabel), sizeof(struct mac_biba)); } static void biba_sysvmsg_create(struct ucred *cred, struct msqid_kernel *msqkptr, struct label *msqlabel, struct msg *msgptr, struct label *msglabel) { struct mac_biba *source, *dest; /* Ignore the msgq label */ source = SLOT(cred->cr_label); dest = SLOT(msglabel); biba_copy_effective(source, dest); } static int biba_sysvmsq_check_msgrcv(struct ucred *cred, struct msg *msgptr, struct label *msglabel) { struct mac_biba *subj, *obj; if (!biba_enabled) return (0); subj = SLOT(cred->cr_label); obj = SLOT(msglabel); if (!biba_dominate_effective(obj, subj)) return (EACCES); return (0); } static int biba_sysvmsq_check_msgrmid(struct ucred *cred, struct msg *msgptr, struct label *msglabel) { struct mac_biba *subj, *obj; if (!biba_enabled) return (0); subj = SLOT(cred->cr_label); obj = SLOT(msglabel); if (!biba_dominate_effective(subj, obj)) return (EACCES); return (0); } static int biba_sysvmsq_check_msqget(struct ucred *cred, struct msqid_kernel *msqkptr, struct label *msqklabel) { struct mac_biba *subj, *obj; if (!biba_enabled) return (0); subj = SLOT(cred->cr_label); obj = SLOT(msqklabel); if (!biba_dominate_effective(obj, subj)) return (EACCES); return (0); } static int biba_sysvmsq_check_msqsnd(struct ucred *cred, struct msqid_kernel *msqkptr, struct label *msqklabel) { struct mac_biba *subj, *obj; if (!biba_enabled) return (0); subj = SLOT(cred->cr_label); obj = SLOT(msqklabel); if (!biba_dominate_effective(subj, obj)) return (EACCES); return (0); } static int biba_sysvmsq_check_msqrcv(struct ucred *cred, struct msqid_kernel *msqkptr, struct label *msqklabel) { struct mac_biba *subj, *obj; if (!biba_enabled) return (0); subj = SLOT(cred->cr_label); obj = SLOT(msqklabel); if (!biba_dominate_effective(obj, subj)) return (EACCES); return (0); } static int biba_sysvmsq_check_msqctl(struct ucred *cred, struct msqid_kernel *msqkptr, struct label *msqklabel, int cmd) { struct mac_biba *subj, *obj; if (!biba_enabled) return (0); subj = SLOT(cred->cr_label); obj = SLOT(msqklabel); switch(cmd) { case IPC_RMID: case IPC_SET: if (!biba_dominate_effective(subj, obj)) return (EACCES); break; case IPC_STAT: if (!biba_dominate_effective(obj, subj)) return (EACCES); break; default: return (EACCES); } return (0); } static void biba_sysvmsq_cleanup(struct label *msqlabel) { bzero(SLOT(msqlabel), sizeof(struct mac_biba)); } static void biba_sysvmsq_create(struct ucred *cred, struct msqid_kernel *msqkptr, struct label *msqlabel) { struct mac_biba *source, *dest; source = SLOT(cred->cr_label); dest = SLOT(msqlabel); biba_copy_effective(source, dest); } static int biba_sysvsem_check_semctl(struct ucred *cred, struct semid_kernel *semakptr, struct label *semaklabel, int cmd) { struct mac_biba *subj, *obj; if (!biba_enabled) return (0); subj = SLOT(cred->cr_label); obj = SLOT(semaklabel); switch(cmd) { case IPC_RMID: case IPC_SET: case SETVAL: case SETALL: if (!biba_dominate_effective(subj, obj)) return (EACCES); break; case IPC_STAT: case GETVAL: case GETPID: case GETNCNT: case GETZCNT: case GETALL: if (!biba_dominate_effective(obj, subj)) return (EACCES); break; default: return (EACCES); } return (0); } static int biba_sysvsem_check_semget(struct ucred *cred, struct semid_kernel *semakptr, struct label *semaklabel) { struct mac_biba *subj, *obj; if (!biba_enabled) return (0); subj = SLOT(cred->cr_label); obj = SLOT(semaklabel); if (!biba_dominate_effective(obj, subj)) return (EACCES); return (0); } static int biba_sysvsem_check_semop(struct ucred *cred, struct semid_kernel *semakptr, struct label *semaklabel, size_t accesstype) { struct mac_biba *subj, *obj; if (!biba_enabled) return (0); subj = SLOT(cred->cr_label); obj = SLOT(semaklabel); if (accesstype & SEM_R) if (!biba_dominate_effective(obj, subj)) return (EACCES); if (accesstype & SEM_A) if (!biba_dominate_effective(subj, obj)) return (EACCES); return (0); } static void biba_sysvsem_cleanup(struct label *semalabel) { bzero(SLOT(semalabel), sizeof(struct mac_biba)); } static void biba_sysvsem_create(struct ucred *cred, struct semid_kernel *semakptr, struct label *semalabel) { struct mac_biba *source, *dest; source = SLOT(cred->cr_label); dest = SLOT(semalabel); biba_copy_effective(source, dest); } static int biba_sysvshm_check_shmat(struct ucred *cred, struct shmid_kernel *shmsegptr, struct label *shmseglabel, int shmflg) { struct mac_biba *subj, *obj; if (!biba_enabled) return (0); subj = SLOT(cred->cr_label); obj = SLOT(shmseglabel); if (!biba_dominate_effective(obj, subj)) return (EACCES); if ((shmflg & SHM_RDONLY) == 0) { if (!biba_dominate_effective(subj, obj)) return (EACCES); } return (0); } static int biba_sysvshm_check_shmctl(struct ucred *cred, struct shmid_kernel *shmsegptr, struct label *shmseglabel, int cmd) { struct mac_biba *subj, *obj; if (!biba_enabled) return (0); subj = SLOT(cred->cr_label); obj = SLOT(shmseglabel); switch(cmd) { case IPC_RMID: case IPC_SET: if (!biba_dominate_effective(subj, obj)) return (EACCES); break; case IPC_STAT: case SHM_STAT: if (!biba_dominate_effective(obj, subj)) return (EACCES); break; default: return (EACCES); } return (0); } static int biba_sysvshm_check_shmget(struct ucred *cred, struct shmid_kernel *shmsegptr, struct label *shmseglabel, int shmflg) { struct mac_biba *subj, *obj; if (!biba_enabled) return (0); subj = SLOT(cred->cr_label); obj = SLOT(shmseglabel); if (!biba_dominate_effective(obj, subj)) return (EACCES); return (0); } static void biba_sysvshm_cleanup(struct label *shmlabel) { bzero(SLOT(shmlabel), sizeof(struct mac_biba)); } static void biba_sysvshm_create(struct ucred *cred, struct shmid_kernel *shmsegptr, struct label *shmlabel) { struct mac_biba *source, *dest; source = SLOT(cred->cr_label); dest = SLOT(shmlabel); biba_copy_effective(source, dest); } static int biba_vnode_associate_extattr(struct mount *mp, struct label *mplabel, struct vnode *vp, struct label *vplabel) { struct mac_biba mb_temp, *source, *dest; int buflen, error; source = SLOT(mplabel); dest = SLOT(vplabel); buflen = sizeof(mb_temp); bzero(&mb_temp, buflen); error = vn_extattr_get(vp, IO_NODELOCKED, MAC_BIBA_EXTATTR_NAMESPACE, MAC_BIBA_EXTATTR_NAME, &buflen, (char *) &mb_temp, curthread); if (error == ENOATTR || error == EOPNOTSUPP) { /* Fall back to the mntlabel. */ biba_copy_effective(source, dest); return (0); } else if (error) return (error); if (buflen != sizeof(mb_temp)) { printf("biba_vnode_associate_extattr: bad size %d\n", buflen); return (EPERM); } if (biba_valid(&mb_temp) != 0) { printf("biba_vnode_associate_extattr: invalid\n"); return (EPERM); } if ((mb_temp.mb_flags & MAC_BIBA_FLAGS_BOTH) != MAC_BIBA_FLAG_EFFECTIVE) { printf("biba_vnode_associate_extattr: not effective\n"); return (EPERM); } biba_copy_effective(&mb_temp, dest); return (0); } static void biba_vnode_associate_singlelabel(struct mount *mp, struct label *mplabel, struct vnode *vp, struct label *vplabel) { struct mac_biba *source, *dest; source = SLOT(mplabel); dest = SLOT(vplabel); biba_copy_effective(source, dest); } static int biba_vnode_check_chdir(struct ucred *cred, struct vnode *dvp, struct label *dvplabel) { struct mac_biba *subj, *obj; if (!biba_enabled) return (0); subj = SLOT(cred->cr_label); obj = SLOT(dvplabel); if (!biba_dominate_effective(obj, subj)) return (EACCES); return (0); } static int biba_vnode_check_chroot(struct ucred *cred, struct vnode *dvp, struct label *dvplabel) { struct mac_biba *subj, *obj; if (!biba_enabled) return (0); subj = SLOT(cred->cr_label); obj = SLOT(dvplabel); if (!biba_dominate_effective(obj, subj)) return (EACCES); return (0); } static int biba_vnode_check_create(struct ucred *cred, struct vnode *dvp, struct label *dvplabel, struct componentname *cnp, struct vattr *vap) { struct mac_biba *subj, *obj; if (!biba_enabled) return (0); subj = SLOT(cred->cr_label); obj = SLOT(dvplabel); if (!biba_dominate_effective(subj, obj)) return (EACCES); return (0); } static int biba_vnode_check_deleteacl(struct ucred *cred, struct vnode *vp, struct label *vplabel, acl_type_t type) { struct mac_biba *subj, *obj; if (!biba_enabled) return (0); subj = SLOT(cred->cr_label); obj = SLOT(vplabel); if (!biba_dominate_effective(subj, obj)) return (EACCES); return (0); } static int biba_vnode_check_deleteextattr(struct ucred *cred, struct vnode *vp, struct label *vplabel, int attrnamespace, const char *name) { struct mac_biba *subj, *obj; if (!biba_enabled) return (0); subj = SLOT(cred->cr_label); obj = SLOT(vplabel); if (!biba_dominate_effective(subj, obj)) return (EACCES); return (0); } static int biba_vnode_check_exec(struct ucred *cred, struct vnode *vp, struct label *vplabel, struct image_params *imgp, struct label *execlabel) { struct mac_biba *subj, *obj, *exec; int error; if (execlabel != NULL) { /* * We currently don't permit labels to be changed at * exec-time as part of Biba, so disallow non-NULL Biba label * elements in the execlabel. */ exec = SLOT(execlabel); error = biba_atmostflags(exec, 0); if (error) return (error); } if (!biba_enabled) return (0); subj = SLOT(cred->cr_label); obj = SLOT(vplabel); if (!biba_dominate_effective(obj, subj)) return (EACCES); return (0); } static int biba_vnode_check_getacl(struct ucred *cred, struct vnode *vp, struct label *vplabel, acl_type_t type) { struct mac_biba *subj, *obj; if (!biba_enabled) return (0); subj = SLOT(cred->cr_label); obj = SLOT(vplabel); if (!biba_dominate_effective(obj, subj)) return (EACCES); return (0); } static int biba_vnode_check_getextattr(struct ucred *cred, struct vnode *vp, struct label *vplabel, int attrnamespace, const char *name, struct uio *uio) { struct mac_biba *subj, *obj; if (!biba_enabled) return (0); subj = SLOT(cred->cr_label); obj = SLOT(vplabel); if (!biba_dominate_effective(obj, subj)) return (EACCES); return (0); } static int biba_vnode_check_link(struct ucred *cred, struct vnode *dvp, struct label *dvplabel, struct vnode *vp, struct label *vplabel, struct componentname *cnp) { struct mac_biba *subj, *obj; if (!biba_enabled) return (0); subj = SLOT(cred->cr_label); obj = SLOT(dvplabel); if (!biba_dominate_effective(subj, obj)) return (EACCES); obj = SLOT(vplabel); if (!biba_dominate_effective(subj, obj)) return (EACCES); return (0); } static int biba_vnode_check_listextattr(struct ucred *cred, struct vnode *vp, struct label *vplabel, int attrnamespace) { struct mac_biba *subj, *obj; if (!biba_enabled) return (0); subj = SLOT(cred->cr_label); obj = SLOT(vplabel); if (!biba_dominate_effective(obj, subj)) return (EACCES); return (0); } static int biba_vnode_check_lookup(struct ucred *cred, struct vnode *dvp, struct label *dvplabel, struct componentname *cnp) { struct mac_biba *subj, *obj; if (!biba_enabled) return (0); subj = SLOT(cred->cr_label); obj = SLOT(dvplabel); if (!biba_dominate_effective(obj, subj)) return (EACCES); return (0); } static int biba_vnode_check_mmap(struct ucred *cred, struct vnode *vp, struct label *vplabel, int prot, int flags) { struct mac_biba *subj, *obj; /* * Rely on the use of open()-time protections to handle * non-revocation cases. */ if (!biba_enabled || !revocation_enabled) return (0); subj = SLOT(cred->cr_label); obj = SLOT(vplabel); if (prot & (VM_PROT_READ | VM_PROT_EXECUTE)) { if (!biba_dominate_effective(obj, subj)) return (EACCES); } if (((prot & VM_PROT_WRITE) != 0) && ((flags & MAP_SHARED) != 0)) { if (!biba_dominate_effective(subj, obj)) return (EACCES); } return (0); } static int biba_vnode_check_open(struct ucred *cred, struct vnode *vp, struct label *vplabel, int acc_mode) { struct mac_biba *subj, *obj; if (!biba_enabled) return (0); subj = SLOT(cred->cr_label); obj = SLOT(vplabel); /* XXX privilege override for admin? */ if (acc_mode & (VREAD | VEXEC | VSTAT)) { if (!biba_dominate_effective(obj, subj)) return (EACCES); } if (acc_mode & (VWRITE | VAPPEND | VADMIN)) { if (!biba_dominate_effective(subj, obj)) return (EACCES); } return (0); } static int biba_vnode_check_poll(struct ucred *active_cred, struct ucred *file_cred, struct vnode *vp, struct label *vplabel) { struct mac_biba *subj, *obj; if (!biba_enabled || !revocation_enabled) return (0); subj = SLOT(active_cred->cr_label); obj = SLOT(vplabel); if (!biba_dominate_effective(obj, subj)) return (EACCES); return (0); } static int biba_vnode_check_read(struct ucred *active_cred, struct ucred *file_cred, struct vnode *vp, struct label *vplabel) { struct mac_biba *subj, *obj; if (!biba_enabled || !revocation_enabled) return (0); subj = SLOT(active_cred->cr_label); obj = SLOT(vplabel); if (!biba_dominate_effective(obj, subj)) return (EACCES); return (0); } static int biba_vnode_check_readdir(struct ucred *cred, struct vnode *dvp, struct label *dvplabel) { struct mac_biba *subj, *obj; if (!biba_enabled) return (0); subj = SLOT(cred->cr_label); obj = SLOT(dvplabel); if (!biba_dominate_effective(obj, subj)) return (EACCES); return (0); } static int biba_vnode_check_readlink(struct ucred *cred, struct vnode *vp, struct label *vplabel) { struct mac_biba *subj, *obj; if (!biba_enabled) return (0); subj = SLOT(cred->cr_label); obj = SLOT(vplabel); if (!biba_dominate_effective(obj, subj)) return (EACCES); return (0); } static int biba_vnode_check_relabel(struct ucred *cred, struct vnode *vp, struct label *vplabel, struct label *newlabel) { struct mac_biba *old, *new, *subj; int error; old = SLOT(vplabel); new = SLOT(newlabel); subj = SLOT(cred->cr_label); /* * If there is a Biba label update for the vnode, it must be a * effective label. */ error = biba_atmostflags(new, MAC_BIBA_FLAG_EFFECTIVE); if (error) return (error); /* * To perform a relabel of the vnode (Biba label or not), Biba must * authorize the relabel. */ if (!biba_effective_in_range(old, subj)) return (EPERM); /* * If the Biba label is to be changed, authorize as appropriate. */ if (new->mb_flags & MAC_BIBA_FLAG_EFFECTIVE) { /* * To change the Biba label on a vnode, the new vnode label * must be in the subject range. */ if (!biba_effective_in_range(new, subj)) return (EPERM); /* * To change the Biba label on the vnode to be EQUAL, the * subject must have appropriate privilege. */ if (biba_contains_equal(new)) { error = biba_subject_privileged(subj); if (error) return (error); } } return (0); } static int biba_vnode_check_rename_from(struct ucred *cred, struct vnode *dvp, struct label *dvplabel, struct vnode *vp, struct label *vplabel, struct componentname *cnp) { struct mac_biba *subj, *obj; if (!biba_enabled) return (0); subj = SLOT(cred->cr_label); obj = SLOT(dvplabel); if (!biba_dominate_effective(subj, obj)) return (EACCES); obj = SLOT(vplabel); if (!biba_dominate_effective(subj, obj)) return (EACCES); return (0); } static int biba_vnode_check_rename_to(struct ucred *cred, struct vnode *dvp, struct label *dvplabel, struct vnode *vp, struct label *vplabel, int samedir, struct componentname *cnp) { struct mac_biba *subj, *obj; if (!biba_enabled) return (0); subj = SLOT(cred->cr_label); obj = SLOT(dvplabel); if (!biba_dominate_effective(subj, obj)) return (EACCES); if (vp != NULL) { obj = SLOT(vplabel); if (!biba_dominate_effective(subj, obj)) return (EACCES); } return (0); } static int biba_vnode_check_revoke(struct ucred *cred, struct vnode *vp, struct label *vplabel) { struct mac_biba *subj, *obj; if (!biba_enabled) return (0); subj = SLOT(cred->cr_label); obj = SLOT(vplabel); if (!biba_dominate_effective(subj, obj)) return (EACCES); return (0); } static int biba_vnode_check_setacl(struct ucred *cred, struct vnode *vp, struct label *vplabel, acl_type_t type, struct acl *acl) { struct mac_biba *subj, *obj; if (!biba_enabled) return (0); subj = SLOT(cred->cr_label); obj = SLOT(vplabel); if (!biba_dominate_effective(subj, obj)) return (EACCES); return (0); } static int biba_vnode_check_setextattr(struct ucred *cred, struct vnode *vp, struct label *vplabel, int attrnamespace, const char *name, struct uio *uio) { struct mac_biba *subj, *obj; if (!biba_enabled) return (0); subj = SLOT(cred->cr_label); obj = SLOT(vplabel); if (!biba_dominate_effective(subj, obj)) return (EACCES); /* XXX: protect the MAC EA in a special way? */ return (0); } static int biba_vnode_check_setflags(struct ucred *cred, struct vnode *vp, struct label *vplabel, u_long flags) { struct mac_biba *subj, *obj; if (!biba_enabled) return (0); subj = SLOT(cred->cr_label); obj = SLOT(vplabel); if (!biba_dominate_effective(subj, obj)) return (EACCES); return (0); } static int biba_vnode_check_setmode(struct ucred *cred, struct vnode *vp, struct label *vplabel, mode_t mode) { struct mac_biba *subj, *obj; if (!biba_enabled) return (0); subj = SLOT(cred->cr_label); obj = SLOT(vplabel); if (!biba_dominate_effective(subj, obj)) return (EACCES); return (0); } static int biba_vnode_check_setowner(struct ucred *cred, struct vnode *vp, struct label *vplabel, uid_t uid, gid_t gid) { struct mac_biba *subj, *obj; if (!biba_enabled) return (0); subj = SLOT(cred->cr_label); obj = SLOT(vplabel); if (!biba_dominate_effective(subj, obj)) return (EACCES); return (0); } static int biba_vnode_check_setutimes(struct ucred *cred, struct vnode *vp, struct label *vplabel, struct timespec atime, struct timespec mtime) { struct mac_biba *subj, *obj; if (!biba_enabled) return (0); subj = SLOT(cred->cr_label); obj = SLOT(vplabel); if (!biba_dominate_effective(subj, obj)) return (EACCES); return (0); } static int biba_vnode_check_stat(struct ucred *active_cred, struct ucred *file_cred, struct vnode *vp, struct label *vplabel) { struct mac_biba *subj, *obj; if (!biba_enabled) return (0); subj = SLOT(active_cred->cr_label); obj = SLOT(vplabel); if (!biba_dominate_effective(obj, subj)) return (EACCES); return (0); } static int biba_vnode_check_unlink(struct ucred *cred, struct vnode *dvp, struct label *dvplabel, struct vnode *vp, struct label *vplabel, struct componentname *cnp) { struct mac_biba *subj, *obj; if (!biba_enabled) return (0); subj = SLOT(cred->cr_label); obj = SLOT(dvplabel); if (!biba_dominate_effective(subj, obj)) return (EACCES); obj = SLOT(vplabel); if (!biba_dominate_effective(subj, obj)) return (EACCES); return (0); } static int biba_vnode_check_write(struct ucred *active_cred, struct ucred *file_cred, struct vnode *vp, struct label *vplabel) { struct mac_biba *subj, *obj; if (!biba_enabled || !revocation_enabled) return (0); subj = SLOT(active_cred->cr_label); obj = SLOT(vplabel); if (!biba_dominate_effective(subj, obj)) return (EACCES); return (0); } static int biba_vnode_create_extattr(struct ucred *cred, struct mount *mp, struct label *mplabel, struct vnode *dvp, struct label *dvplabel, struct vnode *vp, struct label *vplabel, struct componentname *cnp) { struct mac_biba *source, *dest, mb_temp; size_t buflen; int error; buflen = sizeof(mb_temp); bzero(&mb_temp, buflen); source = SLOT(cred->cr_label); dest = SLOT(vplabel); biba_copy_effective(source, &mb_temp); error = vn_extattr_set(vp, IO_NODELOCKED, MAC_BIBA_EXTATTR_NAMESPACE, MAC_BIBA_EXTATTR_NAME, buflen, (char *) &mb_temp, curthread); if (error == 0) biba_copy_effective(source, dest); return (error); } static void biba_vnode_relabel(struct ucred *cred, struct vnode *vp, struct label *vplabel, struct label *newlabel) { struct mac_biba *source, *dest; source = SLOT(newlabel); dest = SLOT(vplabel); biba_copy(source, dest); } static int biba_vnode_setlabel_extattr(struct ucred *cred, struct vnode *vp, struct label *vplabel, struct label *intlabel) { struct mac_biba *source, mb_temp; size_t buflen; int error; buflen = sizeof(mb_temp); bzero(&mb_temp, buflen); source = SLOT(intlabel); if ((source->mb_flags & MAC_BIBA_FLAG_EFFECTIVE) == 0) return (0); biba_copy_effective(source, &mb_temp); error = vn_extattr_set(vp, IO_NODELOCKED, MAC_BIBA_EXTATTR_NAMESPACE, MAC_BIBA_EXTATTR_NAME, buflen, (char *) &mb_temp, curthread); return (error); } static struct mac_policy_ops mac_biba_ops = { .mpo_init = biba_init, .mpo_bpfdesc_check_receive = biba_bpfdesc_check_receive, .mpo_bpfdesc_create = biba_bpfdesc_create, .mpo_bpfdesc_create_mbuf = biba_bpfdesc_create_mbuf, .mpo_bpfdesc_destroy_label = biba_destroy_label, .mpo_bpfdesc_init_label = biba_init_label, .mpo_cred_check_relabel = biba_cred_check_relabel, .mpo_cred_check_visible = biba_cred_check_visible, .mpo_cred_copy_label = biba_copy_label, .mpo_cred_destroy_label = biba_destroy_label, .mpo_cred_externalize_label = biba_externalize_label, .mpo_cred_init_label = biba_init_label, .mpo_cred_internalize_label = biba_internalize_label, .mpo_cred_relabel = biba_cred_relabel, .mpo_devfs_create_device = biba_devfs_create_device, .mpo_devfs_create_directory = biba_devfs_create_directory, .mpo_devfs_create_symlink = biba_devfs_create_symlink, .mpo_devfs_destroy_label = biba_destroy_label, .mpo_devfs_init_label = biba_init_label, .mpo_devfs_update = biba_devfs_update, .mpo_devfs_vnode_associate = biba_devfs_vnode_associate, .mpo_ifnet_check_relabel = biba_ifnet_check_relabel, .mpo_ifnet_check_transmit = biba_ifnet_check_transmit, .mpo_ifnet_copy_label = biba_copy_label, .mpo_ifnet_create = biba_ifnet_create, .mpo_ifnet_create_mbuf = biba_ifnet_create_mbuf, .mpo_ifnet_destroy_label = biba_destroy_label, .mpo_ifnet_externalize_label = biba_externalize_label, .mpo_ifnet_init_label = biba_init_label, .mpo_ifnet_internalize_label = biba_internalize_label, .mpo_ifnet_relabel = biba_ifnet_relabel, .mpo_inpcb_check_deliver = biba_inpcb_check_deliver, .mpo_inpcb_create = biba_inpcb_create, .mpo_inpcb_create_mbuf = biba_inpcb_create_mbuf, .mpo_inpcb_destroy_label = biba_destroy_label, .mpo_inpcb_init_label = biba_init_label_waitcheck, .mpo_inpcb_sosetlabel = biba_inpcb_sosetlabel, .mpo_ipq_create = biba_ipq_create, .mpo_ipq_destroy_label = biba_destroy_label, .mpo_ipq_init_label = biba_init_label_waitcheck, .mpo_ipq_match = biba_ipq_match, .mpo_ipq_reassemble = biba_ipq_reassemble, .mpo_ipq_update = biba_ipq_update, .mpo_kld_check_load = biba_kld_check_load, .mpo_mbuf_copy_label = biba_copy_label, .mpo_mbuf_destroy_label = biba_destroy_label, .mpo_mbuf_init_label = biba_init_label_waitcheck, .mpo_mount_check_stat = biba_mount_check_stat, .mpo_mount_create = biba_mount_create, .mpo_mount_destroy_label = biba_destroy_label, .mpo_mount_init_label = biba_init_label, .mpo_netatalk_aarp_send = biba_netatalk_aarp_send, .mpo_netinet_arp_send = biba_netinet_arp_send, .mpo_netinet_firewall_reply = biba_netinet_firewall_reply, .mpo_netinet_firewall_send = biba_netinet_firewall_send, .mpo_netinet_fragment = biba_netinet_fragment, .mpo_netinet_icmp_reply = biba_netinet_icmp_reply, .mpo_netinet_igmp_send = biba_netinet_igmp_send, .mpo_netinet6_nd6_send = biba_netinet6_nd6_send, .mpo_pipe_check_ioctl = biba_pipe_check_ioctl, .mpo_pipe_check_poll = biba_pipe_check_poll, .mpo_pipe_check_read = biba_pipe_check_read, .mpo_pipe_check_relabel = biba_pipe_check_relabel, .mpo_pipe_check_stat = biba_pipe_check_stat, .mpo_pipe_check_write = biba_pipe_check_write, .mpo_pipe_copy_label = biba_copy_label, .mpo_pipe_create = biba_pipe_create, .mpo_pipe_destroy_label = biba_destroy_label, .mpo_pipe_externalize_label = biba_externalize_label, .mpo_pipe_init_label = biba_init_label, .mpo_pipe_internalize_label = biba_internalize_label, .mpo_pipe_relabel = biba_pipe_relabel, - .mpo_posixsem_check_destroy = biba_posixsem_check_write, .mpo_posixsem_check_getvalue = biba_posixsem_check_rdonly, .mpo_posixsem_check_open = biba_posixsem_check_write, .mpo_posixsem_check_post = biba_posixsem_check_write, .mpo_posixsem_check_unlink = biba_posixsem_check_write, .mpo_posixsem_check_wait = biba_posixsem_check_write, .mpo_posixsem_create = biba_posixsem_create, .mpo_posixsem_destroy_label = biba_destroy_label, .mpo_posixsem_init_label = biba_init_label, .mpo_priv_check = biba_priv_check, .mpo_proc_associate_nfsd = biba_proc_associate_nfsd, .mpo_proc_check_debug = biba_proc_check_debug, .mpo_proc_check_sched = biba_proc_check_sched, .mpo_proc_check_signal = biba_proc_check_signal, .mpo_proc_create_init = biba_proc_create_init, .mpo_proc_create_swapper = biba_proc_create_swapper, .mpo_socket_check_deliver = biba_socket_check_deliver, .mpo_socket_check_relabel = biba_socket_check_relabel, .mpo_socket_check_visible = biba_socket_check_visible, .mpo_socket_copy_label = biba_copy_label, .mpo_socket_create = biba_socket_create, .mpo_socket_create_mbuf = biba_socket_create_mbuf, .mpo_socket_destroy_label = biba_destroy_label, .mpo_socket_externalize_label = biba_externalize_label, .mpo_socket_init_label = biba_init_label_waitcheck, .mpo_socket_internalize_label = biba_internalize_label, .mpo_socket_newconn = biba_socket_newconn, .mpo_socket_relabel = biba_socket_relabel, .mpo_socketpeer_destroy_label = biba_destroy_label, .mpo_socketpeer_externalize_label = biba_externalize_label, .mpo_socketpeer_init_label = biba_init_label_waitcheck, .mpo_socketpeer_set_from_mbuf = biba_socketpeer_set_from_mbuf, .mpo_socketpeer_set_from_socket = biba_socketpeer_set_from_socket, .mpo_syncache_create = biba_syncache_create, .mpo_syncache_create_mbuf = biba_syncache_create_mbuf, .mpo_syncache_destroy_label = biba_destroy_label, .mpo_syncache_init_label = biba_init_label_waitcheck, .mpo_system_check_acct = biba_system_check_acct, .mpo_system_check_auditctl = biba_system_check_auditctl, .mpo_system_check_auditon = biba_system_check_auditon, .mpo_system_check_swapoff = biba_system_check_swapoff, .mpo_system_check_swapon = biba_system_check_swapon, .mpo_system_check_sysctl = biba_system_check_sysctl, .mpo_sysvmsg_cleanup = biba_sysvmsg_cleanup, .mpo_sysvmsg_create = biba_sysvmsg_create, .mpo_sysvmsg_destroy_label = biba_destroy_label, .mpo_sysvmsg_init_label = biba_init_label, .mpo_sysvmsq_check_msgrcv = biba_sysvmsq_check_msgrcv, .mpo_sysvmsq_check_msgrmid = biba_sysvmsq_check_msgrmid, .mpo_sysvmsq_check_msqget = biba_sysvmsq_check_msqget, .mpo_sysvmsq_check_msqsnd = biba_sysvmsq_check_msqsnd, .mpo_sysvmsq_check_msqrcv = biba_sysvmsq_check_msqrcv, .mpo_sysvmsq_check_msqctl = biba_sysvmsq_check_msqctl, .mpo_sysvmsq_cleanup = biba_sysvmsq_cleanup, .mpo_sysvmsq_create = biba_sysvmsq_create, .mpo_sysvmsq_destroy_label = biba_destroy_label, .mpo_sysvmsq_init_label = biba_init_label, .mpo_sysvsem_check_semctl = biba_sysvsem_check_semctl, .mpo_sysvsem_check_semget = biba_sysvsem_check_semget, .mpo_sysvsem_check_semop = biba_sysvsem_check_semop, .mpo_sysvsem_cleanup = biba_sysvsem_cleanup, .mpo_sysvsem_create = biba_sysvsem_create, .mpo_sysvsem_destroy_label = biba_destroy_label, .mpo_sysvsem_init_label = biba_init_label, .mpo_sysvshm_check_shmat = biba_sysvshm_check_shmat, .mpo_sysvshm_check_shmctl = biba_sysvshm_check_shmctl, .mpo_sysvshm_check_shmget = biba_sysvshm_check_shmget, .mpo_sysvshm_cleanup = biba_sysvshm_cleanup, .mpo_sysvshm_create = biba_sysvshm_create, .mpo_sysvshm_destroy_label = biba_destroy_label, .mpo_sysvshm_init_label = biba_init_label, .mpo_vnode_associate_extattr = biba_vnode_associate_extattr, .mpo_vnode_associate_singlelabel = biba_vnode_associate_singlelabel, .mpo_vnode_check_access = biba_vnode_check_open, .mpo_vnode_check_chdir = biba_vnode_check_chdir, .mpo_vnode_check_chroot = biba_vnode_check_chroot, .mpo_vnode_check_create = biba_vnode_check_create, .mpo_vnode_check_deleteacl = biba_vnode_check_deleteacl, .mpo_vnode_check_deleteextattr = biba_vnode_check_deleteextattr, .mpo_vnode_check_exec = biba_vnode_check_exec, .mpo_vnode_check_getacl = biba_vnode_check_getacl, .mpo_vnode_check_getextattr = biba_vnode_check_getextattr, .mpo_vnode_check_link = biba_vnode_check_link, .mpo_vnode_check_listextattr = biba_vnode_check_listextattr, .mpo_vnode_check_lookup = biba_vnode_check_lookup, .mpo_vnode_check_mmap = biba_vnode_check_mmap, .mpo_vnode_check_open = biba_vnode_check_open, .mpo_vnode_check_poll = biba_vnode_check_poll, .mpo_vnode_check_read = biba_vnode_check_read, .mpo_vnode_check_readdir = biba_vnode_check_readdir, .mpo_vnode_check_readlink = biba_vnode_check_readlink, .mpo_vnode_check_relabel = biba_vnode_check_relabel, .mpo_vnode_check_rename_from = biba_vnode_check_rename_from, .mpo_vnode_check_rename_to = biba_vnode_check_rename_to, .mpo_vnode_check_revoke = biba_vnode_check_revoke, .mpo_vnode_check_setacl = biba_vnode_check_setacl, .mpo_vnode_check_setextattr = biba_vnode_check_setextattr, .mpo_vnode_check_setflags = biba_vnode_check_setflags, .mpo_vnode_check_setmode = biba_vnode_check_setmode, .mpo_vnode_check_setowner = biba_vnode_check_setowner, .mpo_vnode_check_setutimes = biba_vnode_check_setutimes, .mpo_vnode_check_stat = biba_vnode_check_stat, .mpo_vnode_check_unlink = biba_vnode_check_unlink, .mpo_vnode_check_write = biba_vnode_check_write, .mpo_vnode_create_extattr = biba_vnode_create_extattr, .mpo_vnode_copy_label = biba_copy_label, .mpo_vnode_destroy_label = biba_destroy_label, .mpo_vnode_externalize_label = biba_externalize_label, .mpo_vnode_init_label = biba_init_label, .mpo_vnode_internalize_label = biba_internalize_label, .mpo_vnode_relabel = biba_vnode_relabel, .mpo_vnode_setlabel_extattr = biba_vnode_setlabel_extattr, }; MAC_POLICY_SET(&mac_biba_ops, mac_biba, "TrustedBSD MAC/Biba", MPC_LOADTIME_FLAG_NOTLATE | MPC_LOADTIME_FLAG_LABELMBUFS, &biba_slot); Index: head/sys/security/mac_mls/mac_mls.c =================================================================== --- head/sys/security/mac_mls/mac_mls.c (revision 179962) +++ head/sys/security/mac_mls/mac_mls.c (revision 179963) @@ -1,3082 +1,3081 @@ /*- * Copyright (c) 1999-2002, 2007 Robert N. M. Watson * Copyright (c) 2001-2005 McAfee, Inc. * Copyright (c) 2006 SPARTA, Inc. * All rights reserved. * * This software was developed by Robert Watson for the TrustedBSD Project. * * This software was developed for the FreeBSD Project in part by McAfee * Research, the Security Research Division of McAfee, Inc. under * DARPA/SPAWAR contract N66001-01-C-8035 ("CBOSS"), as part of the DARPA * CHATS research program. * * This software was enhanced by SPARTA ISSO under SPAWAR contract * N66001-04-C-6019 ("SEFOS"). * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * $FreeBSD$ */ /* * Developed by the TrustedBSD Project. * * MLS fixed label mandatory confidentiality policy. */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include SYSCTL_DECL(_security_mac); SYSCTL_NODE(_security_mac, OID_AUTO, mls, CTLFLAG_RW, 0, "TrustedBSD mac_mls policy controls"); static int mls_label_size = sizeof(struct mac_mls); SYSCTL_INT(_security_mac_mls, OID_AUTO, label_size, CTLFLAG_RD, &mls_label_size, 0, "Size of struct mac_mls"); static int mls_enabled = 1; SYSCTL_INT(_security_mac_mls, OID_AUTO, enabled, CTLFLAG_RW, &mls_enabled, 0, "Enforce MAC/MLS policy"); TUNABLE_INT("security.mac.mls.enabled", &mls_enabled); static int destroyed_not_inited; SYSCTL_INT(_security_mac_mls, OID_AUTO, destroyed_not_inited, CTLFLAG_RD, &destroyed_not_inited, 0, "Count of labels destroyed but not inited"); static int ptys_equal = 0; SYSCTL_INT(_security_mac_mls, OID_AUTO, ptys_equal, CTLFLAG_RW, &ptys_equal, 0, "Label pty devices as mls/equal on create"); TUNABLE_INT("security.mac.mls.ptys_equal", &ptys_equal); static int revocation_enabled = 0; SYSCTL_INT(_security_mac_mls, OID_AUTO, revocation_enabled, CTLFLAG_RW, &revocation_enabled, 0, "Revoke access to objects on relabel"); TUNABLE_INT("security.mac.mls.revocation_enabled", &revocation_enabled); static int max_compartments = MAC_MLS_MAX_COMPARTMENTS; SYSCTL_INT(_security_mac_mls, OID_AUTO, max_compartments, CTLFLAG_RD, &max_compartments, 0, "Maximum compartments the policy supports"); static int mls_slot; #define SLOT(l) ((struct mac_mls *)mac_label_get((l), mls_slot)) #define SLOT_SET(l, val) mac_label_set((l), mls_slot, (uintptr_t)(val)) static uma_zone_t zone_mls; static __inline int mls_bit_set_empty(u_char *set) { int i; for (i = 0; i < MAC_MLS_MAX_COMPARTMENTS >> 3; i++) if (set[i] != 0) return (0); return (1); } static struct mac_mls * mls_alloc(int flag) { return (uma_zalloc(zone_mls, flag | M_ZERO)); } static void mls_free(struct mac_mls *mm) { if (mm != NULL) uma_zfree(zone_mls, mm); else atomic_add_int(&destroyed_not_inited, 1); } static int mls_atmostflags(struct mac_mls *mm, int flags) { if ((mm->mm_flags & flags) != mm->mm_flags) return (EINVAL); return (0); } static int mls_dominate_element(struct mac_mls_element *a, struct mac_mls_element *b) { int bit; switch (a->mme_type) { case MAC_MLS_TYPE_EQUAL: case MAC_MLS_TYPE_HIGH: return (1); case MAC_MLS_TYPE_LOW: switch (b->mme_type) { case MAC_MLS_TYPE_LEVEL: case MAC_MLS_TYPE_HIGH: return (0); case MAC_MLS_TYPE_EQUAL: case MAC_MLS_TYPE_LOW: return (1); default: panic("mls_dominate_element: b->mme_type invalid"); } case MAC_MLS_TYPE_LEVEL: switch (b->mme_type) { case MAC_MLS_TYPE_EQUAL: case MAC_MLS_TYPE_LOW: return (1); case MAC_MLS_TYPE_HIGH: return (0); case MAC_MLS_TYPE_LEVEL: for (bit = 1; bit <= MAC_MLS_MAX_COMPARTMENTS; bit++) if (!MAC_MLS_BIT_TEST(bit, a->mme_compartments) && MAC_MLS_BIT_TEST(bit, b->mme_compartments)) return (0); return (a->mme_level >= b->mme_level); default: panic("mls_dominate_element: b->mme_type invalid"); } default: panic("mls_dominate_element: a->mme_type invalid"); } return (0); } static int mls_range_in_range(struct mac_mls *rangea, struct mac_mls *rangeb) { return (mls_dominate_element(&rangeb->mm_rangehigh, &rangea->mm_rangehigh) && mls_dominate_element(&rangea->mm_rangelow, &rangeb->mm_rangelow)); } static int mls_effective_in_range(struct mac_mls *effective, struct mac_mls *range) { KASSERT((effective->mm_flags & MAC_MLS_FLAG_EFFECTIVE) != 0, ("mls_effective_in_range: a not effective")); KASSERT((range->mm_flags & MAC_MLS_FLAG_RANGE) != 0, ("mls_effective_in_range: b not range")); return (mls_dominate_element(&range->mm_rangehigh, &effective->mm_effective) && mls_dominate_element(&effective->mm_effective, &range->mm_rangelow)); return (1); } static int mls_dominate_effective(struct mac_mls *a, struct mac_mls *b) { KASSERT((a->mm_flags & MAC_MLS_FLAG_EFFECTIVE) != 0, ("mls_dominate_effective: a not effective")); KASSERT((b->mm_flags & MAC_MLS_FLAG_EFFECTIVE) != 0, ("mls_dominate_effective: b not effective")); return (mls_dominate_element(&a->mm_effective, &b->mm_effective)); } static int mls_equal_element(struct mac_mls_element *a, struct mac_mls_element *b) { if (a->mme_type == MAC_MLS_TYPE_EQUAL || b->mme_type == MAC_MLS_TYPE_EQUAL) return (1); return (a->mme_type == b->mme_type && a->mme_level == b->mme_level); } static int mls_equal_effective(struct mac_mls *a, struct mac_mls *b) { KASSERT((a->mm_flags & MAC_MLS_FLAG_EFFECTIVE) != 0, ("mls_equal_effective: a not effective")); KASSERT((b->mm_flags & MAC_MLS_FLAG_EFFECTIVE) != 0, ("mls_equal_effective: b not effective")); return (mls_equal_element(&a->mm_effective, &b->mm_effective)); } static int mls_contains_equal(struct mac_mls *mm) { if (mm->mm_flags & MAC_MLS_FLAG_EFFECTIVE) if (mm->mm_effective.mme_type == MAC_MLS_TYPE_EQUAL) return (1); if (mm->mm_flags & MAC_MLS_FLAG_RANGE) { if (mm->mm_rangelow.mme_type == MAC_MLS_TYPE_EQUAL) return (1); if (mm->mm_rangehigh.mme_type == MAC_MLS_TYPE_EQUAL) return (1); } return (0); } static int mls_subject_privileged(struct mac_mls *mm) { KASSERT((mm->mm_flags & MAC_MLS_FLAGS_BOTH) == MAC_MLS_FLAGS_BOTH, ("mls_subject_privileged: subject doesn't have both labels")); /* If the effective is EQUAL, it's ok. */ if (mm->mm_effective.mme_type == MAC_MLS_TYPE_EQUAL) return (0); /* If either range endpoint is EQUAL, it's ok. */ if (mm->mm_rangelow.mme_type == MAC_MLS_TYPE_EQUAL || mm->mm_rangehigh.mme_type == MAC_MLS_TYPE_EQUAL) return (0); /* If the range is low-high, it's ok. */ if (mm->mm_rangelow.mme_type == MAC_MLS_TYPE_LOW && mm->mm_rangehigh.mme_type == MAC_MLS_TYPE_HIGH) return (0); /* It's not ok. */ return (EPERM); } static int mls_valid(struct mac_mls *mm) { if (mm->mm_flags & MAC_MLS_FLAG_EFFECTIVE) { switch (mm->mm_effective.mme_type) { case MAC_MLS_TYPE_LEVEL: break; case MAC_MLS_TYPE_EQUAL: case MAC_MLS_TYPE_HIGH: case MAC_MLS_TYPE_LOW: if (mm->mm_effective.mme_level != 0 || !MAC_MLS_BIT_SET_EMPTY( mm->mm_effective.mme_compartments)) return (EINVAL); break; default: return (EINVAL); } } else { if (mm->mm_effective.mme_type != MAC_MLS_TYPE_UNDEF) return (EINVAL); } if (mm->mm_flags & MAC_MLS_FLAG_RANGE) { switch (mm->mm_rangelow.mme_type) { case MAC_MLS_TYPE_LEVEL: break; case MAC_MLS_TYPE_EQUAL: case MAC_MLS_TYPE_HIGH: case MAC_MLS_TYPE_LOW: if (mm->mm_rangelow.mme_level != 0 || !MAC_MLS_BIT_SET_EMPTY( mm->mm_rangelow.mme_compartments)) return (EINVAL); break; default: return (EINVAL); } switch (mm->mm_rangehigh.mme_type) { case MAC_MLS_TYPE_LEVEL: break; case MAC_MLS_TYPE_EQUAL: case MAC_MLS_TYPE_HIGH: case MAC_MLS_TYPE_LOW: if (mm->mm_rangehigh.mme_level != 0 || !MAC_MLS_BIT_SET_EMPTY( mm->mm_rangehigh.mme_compartments)) return (EINVAL); break; default: return (EINVAL); } if (!mls_dominate_element(&mm->mm_rangehigh, &mm->mm_rangelow)) return (EINVAL); } else { if (mm->mm_rangelow.mme_type != MAC_MLS_TYPE_UNDEF || mm->mm_rangehigh.mme_type != MAC_MLS_TYPE_UNDEF) return (EINVAL); } return (0); } static void mls_set_range(struct mac_mls *mm, u_short typelow, u_short levellow, u_char *compartmentslow, u_short typehigh, u_short levelhigh, u_char *compartmentshigh) { mm->mm_rangelow.mme_type = typelow; mm->mm_rangelow.mme_level = levellow; if (compartmentslow != NULL) memcpy(mm->mm_rangelow.mme_compartments, compartmentslow, sizeof(mm->mm_rangelow.mme_compartments)); mm->mm_rangehigh.mme_type = typehigh; mm->mm_rangehigh.mme_level = levelhigh; if (compartmentshigh != NULL) memcpy(mm->mm_rangehigh.mme_compartments, compartmentshigh, sizeof(mm->mm_rangehigh.mme_compartments)); mm->mm_flags |= MAC_MLS_FLAG_RANGE; } static void mls_set_effective(struct mac_mls *mm, u_short type, u_short level, u_char *compartments) { mm->mm_effective.mme_type = type; mm->mm_effective.mme_level = level; if (compartments != NULL) memcpy(mm->mm_effective.mme_compartments, compartments, sizeof(mm->mm_effective.mme_compartments)); mm->mm_flags |= MAC_MLS_FLAG_EFFECTIVE; } static void mls_copy_range(struct mac_mls *labelfrom, struct mac_mls *labelto) { KASSERT((labelfrom->mm_flags & MAC_MLS_FLAG_RANGE) != 0, ("mls_copy_range: labelfrom not range")); labelto->mm_rangelow = labelfrom->mm_rangelow; labelto->mm_rangehigh = labelfrom->mm_rangehigh; labelto->mm_flags |= MAC_MLS_FLAG_RANGE; } static void mls_copy_effective(struct mac_mls *labelfrom, struct mac_mls *labelto) { KASSERT((labelfrom->mm_flags & MAC_MLS_FLAG_EFFECTIVE) != 0, ("mls_copy_effective: labelfrom not effective")); labelto->mm_effective = labelfrom->mm_effective; labelto->mm_flags |= MAC_MLS_FLAG_EFFECTIVE; } static void mls_copy(struct mac_mls *source, struct mac_mls *dest) { if (source->mm_flags & MAC_MLS_FLAG_EFFECTIVE) mls_copy_effective(source, dest); if (source->mm_flags & MAC_MLS_FLAG_RANGE) mls_copy_range(source, dest); } /* * Policy module operations. */ static void mls_init(struct mac_policy_conf *conf) { zone_mls = uma_zcreate("mac_mls", sizeof(struct mac_mls), NULL, NULL, NULL, NULL, UMA_ALIGN_PTR, 0); } /* * Label operations. */ static void mls_init_label(struct label *label) { SLOT_SET(label, mls_alloc(M_WAITOK)); } static int mls_init_label_waitcheck(struct label *label, int flag) { SLOT_SET(label, mls_alloc(flag)); if (SLOT(label) == NULL) return (ENOMEM); return (0); } static void mls_destroy_label(struct label *label) { mls_free(SLOT(label)); SLOT_SET(label, NULL); } /* * mls_element_to_string() accepts an sbuf and MLS element. It converts the * MLS element to a string and stores the result in the sbuf; if there isn't * space in the sbuf, -1 is returned. */ static int mls_element_to_string(struct sbuf *sb, struct mac_mls_element *element) { int i, first; switch (element->mme_type) { case MAC_MLS_TYPE_HIGH: return (sbuf_printf(sb, "high")); case MAC_MLS_TYPE_LOW: return (sbuf_printf(sb, "low")); case MAC_MLS_TYPE_EQUAL: return (sbuf_printf(sb, "equal")); case MAC_MLS_TYPE_LEVEL: if (sbuf_printf(sb, "%d", element->mme_level) == -1) return (-1); first = 1; for (i = 1; i <= MAC_MLS_MAX_COMPARTMENTS; i++) { if (MAC_MLS_BIT_TEST(i, element->mme_compartments)) { if (first) { if (sbuf_putc(sb, ':') == -1) return (-1); if (sbuf_printf(sb, "%d", i) == -1) return (-1); first = 0; } else { if (sbuf_printf(sb, "+%d", i) == -1) return (-1); } } } return (0); default: panic("mls_element_to_string: invalid type (%d)", element->mme_type); } } /* * mls_to_string() converts an MLS label to a string, and places the results * in the passed sbuf. It returns 0 on success, or EINVAL if there isn't * room in the sbuf. Note: the sbuf will be modified even in a failure case, * so the caller may need to revert the sbuf by restoring the offset if * that's undesired. */ static int mls_to_string(struct sbuf *sb, struct mac_mls *mm) { if (mm->mm_flags & MAC_MLS_FLAG_EFFECTIVE) { if (mls_element_to_string(sb, &mm->mm_effective) == -1) return (EINVAL); } if (mm->mm_flags & MAC_MLS_FLAG_RANGE) { if (sbuf_putc(sb, '(') == -1) return (EINVAL); if (mls_element_to_string(sb, &mm->mm_rangelow) == -1) return (EINVAL); if (sbuf_putc(sb, '-') == -1) return (EINVAL); if (mls_element_to_string(sb, &mm->mm_rangehigh) == -1) return (EINVAL); if (sbuf_putc(sb, ')') == -1) return (EINVAL); } return (0); } static int mls_externalize_label(struct label *label, char *element_name, struct sbuf *sb, int *claimed) { struct mac_mls *mm; if (strcmp(MAC_MLS_LABEL_NAME, element_name) != 0) return (0); (*claimed)++; mm = SLOT(label); return (mls_to_string(sb, mm)); } static int mls_parse_element(struct mac_mls_element *element, char *string) { char *compartment, *end, *level; int value; if (strcmp(string, "high") == 0 || strcmp(string, "hi") == 0) { element->mme_type = MAC_MLS_TYPE_HIGH; element->mme_level = MAC_MLS_TYPE_UNDEF; } else if (strcmp(string, "low") == 0 || strcmp(string, "lo") == 0) { element->mme_type = MAC_MLS_TYPE_LOW; element->mme_level = MAC_MLS_TYPE_UNDEF; } else if (strcmp(string, "equal") == 0 || strcmp(string, "eq") == 0) { element->mme_type = MAC_MLS_TYPE_EQUAL; element->mme_level = MAC_MLS_TYPE_UNDEF; } else { element->mme_type = MAC_MLS_TYPE_LEVEL; /* * Numeric level piece of the element. */ level = strsep(&string, ":"); value = strtol(level, &end, 10); if (end == level || *end != '\0') return (EINVAL); if (value < 0 || value > 65535) return (EINVAL); element->mme_level = value; /* * Optional compartment piece of the element. If none are * included, we assume that the label has no compartments. */ if (string == NULL) return (0); if (*string == '\0') return (0); while ((compartment = strsep(&string, "+")) != NULL) { value = strtol(compartment, &end, 10); if (compartment == end || *end != '\0') return (EINVAL); if (value < 1 || value > MAC_MLS_MAX_COMPARTMENTS) return (EINVAL); MAC_MLS_BIT_SET(value, element->mme_compartments); } } return (0); } /* * Note: destructively consumes the string, make a local copy before calling * if that's a problem. */ static int mls_parse(struct mac_mls *mm, char *string) { char *rangehigh, *rangelow, *effective; int error; effective = strsep(&string, "("); if (*effective == '\0') effective = NULL; if (string != NULL) { rangelow = strsep(&string, "-"); if (string == NULL) return (EINVAL); rangehigh = strsep(&string, ")"); if (string == NULL) return (EINVAL); if (*string != '\0') return (EINVAL); } else { rangelow = NULL; rangehigh = NULL; } KASSERT((rangelow != NULL && rangehigh != NULL) || (rangelow == NULL && rangehigh == NULL), ("mls_parse: range mismatch")); bzero(mm, sizeof(*mm)); if (effective != NULL) { error = mls_parse_element(&mm->mm_effective, effective); if (error) return (error); mm->mm_flags |= MAC_MLS_FLAG_EFFECTIVE; } if (rangelow != NULL) { error = mls_parse_element(&mm->mm_rangelow, rangelow); if (error) return (error); error = mls_parse_element(&mm->mm_rangehigh, rangehigh); if (error) return (error); mm->mm_flags |= MAC_MLS_FLAG_RANGE; } error = mls_valid(mm); if (error) return (error); return (0); } static int mls_internalize_label(struct label *label, char *element_name, char *element_data, int *claimed) { struct mac_mls *mm, mm_temp; int error; if (strcmp(MAC_MLS_LABEL_NAME, element_name) != 0) return (0); (*claimed)++; error = mls_parse(&mm_temp, element_data); if (error) return (error); mm = SLOT(label); *mm = mm_temp; return (0); } static void mls_copy_label(struct label *src, struct label *dest) { *SLOT(dest) = *SLOT(src); } /* * Object-specific entry point implementations are sorted alphabetically by * object type name and then by operation. */ static int mls_bpfdesc_check_receive(struct bpf_d *d, struct label *dlabel, struct ifnet *ifp, struct label *ifplabel) { struct mac_mls *a, *b; if (!mls_enabled) return (0); a = SLOT(dlabel); b = SLOT(ifplabel); if (mls_equal_effective(a, b)) return (0); return (EACCES); } static void mls_bpfdesc_create(struct ucred *cred, struct bpf_d *d, struct label *dlabel) { struct mac_mls *source, *dest; source = SLOT(cred->cr_label); dest = SLOT(dlabel); mls_copy_effective(source, dest); } static void mls_bpfdesc_create_mbuf(struct bpf_d *d, struct label *dlabel, struct mbuf *m, struct label *mlabel) { struct mac_mls *source, *dest; source = SLOT(dlabel); dest = SLOT(mlabel); mls_copy_effective(source, dest); } static int mls_cred_check_relabel(struct ucred *cred, struct label *newlabel) { struct mac_mls *subj, *new; int error; subj = SLOT(cred->cr_label); new = SLOT(newlabel); /* * If there is an MLS label update for the credential, it may be an * update of effective, range, or both. */ error = mls_atmostflags(new, MAC_MLS_FLAGS_BOTH); if (error) return (error); /* * If the MLS label is to be changed, authorize as appropriate. */ if (new->mm_flags & MAC_MLS_FLAGS_BOTH) { /* * If the change request modifies both the MLS label * effective and range, check that the new effective will be * in the new range. */ if ((new->mm_flags & MAC_MLS_FLAGS_BOTH) == MAC_MLS_FLAGS_BOTH && !mls_effective_in_range(new, new)) return (EINVAL); /* * To change the MLS effective label on a credential, the new * effective label must be in the current range. */ if (new->mm_flags & MAC_MLS_FLAG_EFFECTIVE && !mls_effective_in_range(new, subj)) return (EPERM); /* * To change the MLS range label on a credential, the new * range must be in the current range. */ if (new->mm_flags & MAC_MLS_FLAG_RANGE && !mls_range_in_range(new, subj)) return (EPERM); /* * To have EQUAL in any component of the new credential MLS * label, the subject must already have EQUAL in their label. */ if (mls_contains_equal(new)) { error = mls_subject_privileged(subj); if (error) return (error); } } return (0); } static int mls_cred_check_visible(struct ucred *cr1, struct ucred *cr2) { struct mac_mls *subj, *obj; if (!mls_enabled) return (0); subj = SLOT(cr1->cr_label); obj = SLOT(cr2->cr_label); /* XXX: range */ if (!mls_dominate_effective(subj, obj)) return (ESRCH); return (0); } static void mls_cred_relabel(struct ucred *cred, struct label *newlabel) { struct mac_mls *source, *dest; source = SLOT(newlabel); dest = SLOT(cred->cr_label); mls_copy(source, dest); } static void mls_devfs_create_device(struct ucred *cred, struct mount *mp, struct cdev *dev, struct devfs_dirent *de, struct label *delabel) { struct mac_mls *mm; int mls_type; mm = SLOT(delabel); if (strcmp(dev->si_name, "null") == 0 || strcmp(dev->si_name, "zero") == 0 || strcmp(dev->si_name, "random") == 0 || strncmp(dev->si_name, "fd/", strlen("fd/")) == 0) mls_type = MAC_MLS_TYPE_EQUAL; else if (strcmp(dev->si_name, "kmem") == 0 || strcmp(dev->si_name, "mem") == 0) mls_type = MAC_MLS_TYPE_HIGH; else if (ptys_equal && (strncmp(dev->si_name, "ttyp", strlen("ttyp")) == 0 || strncmp(dev->si_name, "ptyp", strlen("ptyp")) == 0)) mls_type = MAC_MLS_TYPE_EQUAL; else mls_type = MAC_MLS_TYPE_LOW; mls_set_effective(mm, mls_type, 0, NULL); } static void mls_devfs_create_directory(struct mount *mp, char *dirname, int dirnamelen, struct devfs_dirent *de, struct label *delabel) { struct mac_mls *mm; mm = SLOT(delabel); mls_set_effective(mm, MAC_MLS_TYPE_LOW, 0, NULL); } static void mls_devfs_create_symlink(struct ucred *cred, struct mount *mp, struct devfs_dirent *dd, struct label *ddlabel, struct devfs_dirent *de, struct label *delabel) { struct mac_mls *source, *dest; source = SLOT(cred->cr_label); dest = SLOT(delabel); mls_copy_effective(source, dest); } static void mls_devfs_update(struct mount *mp, struct devfs_dirent *de, struct label *delabel, struct vnode *vp, struct label *vplabel) { struct mac_mls *source, *dest; source = SLOT(vplabel); dest = SLOT(delabel); mls_copy_effective(source, dest); } static void mls_devfs_vnode_associate(struct mount *mp, struct label *mplabel, struct devfs_dirent *de, struct label *delabel, struct vnode *vp, struct label *vplabel) { struct mac_mls *source, *dest; source = SLOT(delabel); dest = SLOT(vplabel); mls_copy_effective(source, dest); } static int mls_ifnet_check_relabel(struct ucred *cred, struct ifnet *ifp, struct label *ifplabel, struct label *newlabel) { struct mac_mls *subj, *new; int error; subj = SLOT(cred->cr_label); new = SLOT(newlabel); /* * If there is an MLS label update for the interface, it may be an * update of effective, range, or both. */ error = mls_atmostflags(new, MAC_MLS_FLAGS_BOTH); if (error) return (error); /* * Relabeling network interfaces requires MLS privilege. */ return (mls_subject_privileged(subj)); } static int mls_ifnet_check_transmit(struct ifnet *ifp, struct label *ifplabel, struct mbuf *m, struct label *mlabel) { struct mac_mls *p, *i; if (!mls_enabled) return (0); p = SLOT(mlabel); i = SLOT(ifplabel); return (mls_effective_in_range(p, i) ? 0 : EACCES); } static void mls_ifnet_create(struct ifnet *ifp, struct label *ifplabel) { struct mac_mls *dest; int type; dest = SLOT(ifplabel); if (ifp->if_type == IFT_LOOP) type = MAC_MLS_TYPE_EQUAL; else type = MAC_MLS_TYPE_LOW; mls_set_effective(dest, type, 0, NULL); mls_set_range(dest, type, 0, NULL, type, 0, NULL); } static void mls_ifnet_create_mbuf(struct ifnet *ifp, struct label *ifplabel, struct mbuf *m, struct label *mlabel) { struct mac_mls *source, *dest; source = SLOT(ifplabel); dest = SLOT(mlabel); mls_copy_effective(source, dest); } static void mls_ifnet_relabel(struct ucred *cred, struct ifnet *ifp, struct label *ifplabel, struct label *newlabel) { struct mac_mls *source, *dest; source = SLOT(newlabel); dest = SLOT(ifplabel); mls_copy(source, dest); } static int mls_inpcb_check_deliver(struct inpcb *inp, struct label *inplabel, struct mbuf *m, struct label *mlabel) { struct mac_mls *p, *i; if (!mls_enabled) return (0); p = SLOT(mlabel); i = SLOT(inplabel); return (mls_equal_effective(p, i) ? 0 : EACCES); } static void mls_inpcb_create(struct socket *so, struct label *solabel, struct inpcb *inp, struct label *inplabel) { struct mac_mls *source, *dest; source = SLOT(solabel); dest = SLOT(inplabel); mls_copy_effective(source, dest); } static void mls_inpcb_create_mbuf(struct inpcb *inp, struct label *inplabel, struct mbuf *m, struct label *mlabel) { struct mac_mls *source, *dest; source = SLOT(inplabel); dest = SLOT(mlabel); mls_copy_effective(source, dest); } static void mls_inpcb_sosetlabel(struct socket *so, struct label *solabel, struct inpcb *inp, struct label *inplabel) { struct mac_mls *source, *dest; source = SLOT(solabel); dest = SLOT(inplabel); mls_copy(source, dest); } static void mls_ipq_create(struct mbuf *m, struct label *mlabel, struct ipq *q, struct label *qlabel) { struct mac_mls *source, *dest; source = SLOT(mlabel); dest = SLOT(qlabel); mls_copy_effective(source, dest); } static int mls_ipq_match(struct mbuf *m, struct label *mlabel, struct ipq *q, struct label *qlabel) { struct mac_mls *a, *b; a = SLOT(qlabel); b = SLOT(mlabel); return (mls_equal_effective(a, b)); } static void mls_ipq_reassemble(struct ipq *q, struct label *qlabel, struct mbuf *m, struct label *mlabel) { struct mac_mls *source, *dest; source = SLOT(qlabel); dest = SLOT(mlabel); /* Just use the head, since we require them all to match. */ mls_copy_effective(source, dest); } static void mls_ipq_update(struct mbuf *m, struct label *mlabel, struct ipq *q, struct label *qlabel) { /* NOOP: we only accept matching labels, so no need to update */ } static int mls_mount_check_stat(struct ucred *cred, struct mount *mp, struct label *mntlabel) { struct mac_mls *subj, *obj; if (!mls_enabled) return (0); subj = SLOT(cred->cr_label); obj = SLOT(mntlabel); if (!mls_dominate_effective(subj, obj)) return (EACCES); return (0); } static void mls_mount_create(struct ucred *cred, struct mount *mp, struct label *mplabel) { struct mac_mls *source, *dest; source = SLOT(cred->cr_label); dest = SLOT(mplabel); mls_copy_effective(source, dest); } static void mls_netatalk_aarp_send(struct ifnet *ifp, struct label *ifplabel, struct mbuf *m, struct label *mlabel) { struct mac_mls *dest; dest = SLOT(mlabel); mls_set_effective(dest, MAC_MLS_TYPE_EQUAL, 0, NULL); } static void mls_netinet_arp_send(struct ifnet *ifp, struct label *ifplabel, struct mbuf *m, struct label *mlabel) { struct mac_mls *dest; dest = SLOT(mlabel); mls_set_effective(dest, MAC_MLS_TYPE_EQUAL, 0, NULL); } static void mls_netinet_firewall_reply(struct mbuf *mrecv, struct label *mrecvlabel, struct mbuf *msend, struct label *msendlabel) { struct mac_mls *source, *dest; source = SLOT(mrecvlabel); dest = SLOT(msendlabel); mls_copy_effective(source, dest); } static void mls_netinet_firewall_send(struct mbuf *m, struct label *mlabel) { struct mac_mls *dest; dest = SLOT(mlabel); /* XXX: where is the label for the firewall really comming from? */ mls_set_effective(dest, MAC_MLS_TYPE_EQUAL, 0, NULL); } static void mls_netinet_fragment(struct mbuf *m, struct label *mlabel, struct mbuf *frag, struct label *fraglabel) { struct mac_mls *source, *dest; source = SLOT(mlabel); dest = SLOT(fraglabel); mls_copy_effective(source, dest); } static void mls_netinet_icmp_reply(struct mbuf *mrecv, struct label *mrecvlabel, struct mbuf *msend, struct label *msendlabel) { struct mac_mls *source, *dest; source = SLOT(mrecvlabel); dest = SLOT(msendlabel); mls_copy_effective(source, dest); } static void mls_netinet_igmp_send(struct ifnet *ifp, struct label *ifplabel, struct mbuf *m, struct label *mlabel) { struct mac_mls *dest; dest = SLOT(mlabel); mls_set_effective(dest, MAC_MLS_TYPE_EQUAL, 0, NULL); } static void mls_netinet6_nd6_send(struct ifnet *ifp, struct label *ifplabel, struct mbuf *m, struct label *mlabel) { struct mac_mls *dest; dest = SLOT(mlabel); mls_set_effective(dest, MAC_MLS_TYPE_EQUAL, 0, NULL); } static int mls_pipe_check_ioctl(struct ucred *cred, struct pipepair *pp, struct label *pplabel, unsigned long cmd, void /* caddr_t */ *data) { if (!mls_enabled) return (0); /* XXX: This will be implemented soon... */ return (0); } static int mls_pipe_check_poll(struct ucred *cred, struct pipepair *pp, struct label *pplabel) { struct mac_mls *subj, *obj; if (!mls_enabled) return (0); subj = SLOT(cred->cr_label); obj = SLOT(pplabel); if (!mls_dominate_effective(subj, obj)) return (EACCES); return (0); } static int mls_pipe_check_read(struct ucred *cred, struct pipepair *pp, struct label *pplabel) { struct mac_mls *subj, *obj; if (!mls_enabled) return (0); subj = SLOT(cred->cr_label); obj = SLOT(pplabel); if (!mls_dominate_effective(subj, obj)) return (EACCES); return (0); } static int mls_pipe_check_relabel(struct ucred *cred, struct pipepair *pp, struct label *pplabel, struct label *newlabel) { struct mac_mls *subj, *obj, *new; int error; new = SLOT(newlabel); subj = SLOT(cred->cr_label); obj = SLOT(pplabel); /* * If there is an MLS label update for a pipe, it must be a effective * update. */ error = mls_atmostflags(new, MAC_MLS_FLAG_EFFECTIVE); if (error) return (error); /* * To perform a relabel of a pipe (MLS label or not), MLS must * authorize the relabel. */ if (!mls_effective_in_range(obj, subj)) return (EPERM); /* * If the MLS label is to be changed, authorize as appropriate. */ if (new->mm_flags & MAC_MLS_FLAG_EFFECTIVE) { /* * To change the MLS label on a pipe, the new pipe label must * be in the subject range. */ if (!mls_effective_in_range(new, subj)) return (EPERM); /* * To change the MLS label on a pipe to be EQUAL, the subject * must have appropriate privilege. */ if (mls_contains_equal(new)) { error = mls_subject_privileged(subj); if (error) return (error); } } return (0); } static int mls_pipe_check_stat(struct ucred *cred, struct pipepair *pp, struct label *pplabel) { struct mac_mls *subj, *obj; if (!mls_enabled) return (0); subj = SLOT(cred->cr_label); obj = SLOT(pplabel); if (!mls_dominate_effective(subj, obj)) return (EACCES); return (0); } static int mls_pipe_check_write(struct ucred *cred, struct pipepair *pp, struct label *pplabel) { struct mac_mls *subj, *obj; if (!mls_enabled) return (0); subj = SLOT(cred->cr_label); obj = SLOT(pplabel); if (!mls_dominate_effective(obj, subj)) return (EACCES); return (0); } static void mls_pipe_create(struct ucred *cred, struct pipepair *pp, struct label *pplabel) { struct mac_mls *source, *dest; source = SLOT(cred->cr_label); dest = SLOT(pplabel); mls_copy_effective(source, dest); } static void mls_pipe_relabel(struct ucred *cred, struct pipepair *pp, struct label *pplabel, struct label *newlabel) { struct mac_mls *source, *dest; source = SLOT(newlabel); dest = SLOT(pplabel); mls_copy(source, dest); } static int mls_posixsem_check_rdonly(struct ucred *cred, struct ksem *ks, struct label *kslabel) { struct mac_mls *subj, *obj; if (!mls_enabled) return (0); subj = SLOT(cred->cr_label); obj = SLOT(kslabel); if (!mls_dominate_effective(subj, obj)) return (EACCES); return (0); } static int mls_posixsem_check_write(struct ucred *cred, struct ksem *ks, struct label *kslabel) { struct mac_mls *subj, *obj; if (!mls_enabled) return (0); subj = SLOT(cred->cr_label); obj = SLOT(kslabel); if (!mls_dominate_effective(obj, subj)) return (EACCES); return (0); } static void mls_posixsem_create(struct ucred *cred, struct ksem *ks, struct label *kslabel) { struct mac_mls *source, *dest; source = SLOT(cred->cr_label); dest = SLOT(kslabel); mls_copy_effective(source, dest); } static void mls_proc_associate_nfsd(struct ucred *cred) { struct mac_mls *label; label = SLOT(cred->cr_label); mls_set_effective(label, MAC_MLS_TYPE_LOW, 0, NULL); mls_set_range(label, MAC_MLS_TYPE_LOW, 0, NULL, MAC_MLS_TYPE_HIGH, 0, NULL); } static int mls_proc_check_debug(struct ucred *cred, struct proc *p) { struct mac_mls *subj, *obj; if (!mls_enabled) return (0); subj = SLOT(cred->cr_label); obj = SLOT(p->p_ucred->cr_label); /* XXX: range checks */ if (!mls_dominate_effective(subj, obj)) return (ESRCH); if (!mls_dominate_effective(obj, subj)) return (EACCES); return (0); } static int mls_proc_check_sched(struct ucred *cred, struct proc *p) { struct mac_mls *subj, *obj; if (!mls_enabled) return (0); subj = SLOT(cred->cr_label); obj = SLOT(p->p_ucred->cr_label); /* XXX: range checks */ if (!mls_dominate_effective(subj, obj)) return (ESRCH); if (!mls_dominate_effective(obj, subj)) return (EACCES); return (0); } static int mls_proc_check_signal(struct ucred *cred, struct proc *p, int signum) { struct mac_mls *subj, *obj; if (!mls_enabled) return (0); subj = SLOT(cred->cr_label); obj = SLOT(p->p_ucred->cr_label); /* XXX: range checks */ if (!mls_dominate_effective(subj, obj)) return (ESRCH); if (!mls_dominate_effective(obj, subj)) return (EACCES); return (0); } static void mls_proc_create_init(struct ucred *cred) { struct mac_mls *dest; dest = SLOT(cred->cr_label); mls_set_effective(dest, MAC_MLS_TYPE_LOW, 0, NULL); mls_set_range(dest, MAC_MLS_TYPE_LOW, 0, NULL, MAC_MLS_TYPE_HIGH, 0, NULL); } static void mls_proc_create_swapper(struct ucred *cred) { struct mac_mls *dest; dest = SLOT(cred->cr_label); mls_set_effective(dest, MAC_MLS_TYPE_EQUAL, 0, NULL); mls_set_range(dest, MAC_MLS_TYPE_LOW, 0, NULL, MAC_MLS_TYPE_HIGH, 0, NULL); } static int mls_socket_check_deliver(struct socket *so, struct label *solabel, struct mbuf *m, struct label *mlabel) { struct mac_mls *p, *s; if (!mls_enabled) return (0); p = SLOT(mlabel); s = SLOT(solabel); return (mls_equal_effective(p, s) ? 0 : EACCES); } static int mls_socket_check_relabel(struct ucred *cred, struct socket *so, struct label *solabel, struct label *newlabel) { struct mac_mls *subj, *obj, *new; int error; new = SLOT(newlabel); subj = SLOT(cred->cr_label); obj = SLOT(solabel); /* * If there is an MLS label update for the socket, it may be an * update of effective. */ error = mls_atmostflags(new, MAC_MLS_FLAG_EFFECTIVE); if (error) return (error); /* * To relabel a socket, the old socket effective must be in the * subject range. */ if (!mls_effective_in_range(obj, subj)) return (EPERM); /* * If the MLS label is to be changed, authorize as appropriate. */ if (new->mm_flags & MAC_MLS_FLAG_EFFECTIVE) { /* * To relabel a socket, the new socket effective must be in * the subject range. */ if (!mls_effective_in_range(new, subj)) return (EPERM); /* * To change the MLS label on the socket to contain EQUAL, * the subject must have appropriate privilege. */ if (mls_contains_equal(new)) { error = mls_subject_privileged(subj); if (error) return (error); } } return (0); } static int mls_socket_check_visible(struct ucred *cred, struct socket *so, struct label *solabel) { struct mac_mls *subj, *obj; if (!mls_enabled) return (0); subj = SLOT(cred->cr_label); obj = SLOT(solabel); if (!mls_dominate_effective(subj, obj)) return (ENOENT); return (0); } static void mls_socket_create(struct ucred *cred, struct socket *so, struct label *solabel) { struct mac_mls *source, *dest; source = SLOT(cred->cr_label); dest = SLOT(solabel); mls_copy_effective(source, dest); } static void mls_socket_create_mbuf(struct socket *so, struct label *solabel, struct mbuf *m, struct label *mlabel) { struct mac_mls *source, *dest; source = SLOT(solabel); dest = SLOT(mlabel); mls_copy_effective(source, dest); } static void mls_socket_newconn(struct socket *oldso, struct label *oldsolabel, struct socket *newso, struct label *newsolabel) { struct mac_mls *source, *dest; source = SLOT(oldsolabel); dest = SLOT(newsolabel); mls_copy_effective(source, dest); } static void mls_socket_relabel(struct ucred *cred, struct socket *so, struct label *solabel, struct label *newlabel) { struct mac_mls *source, *dest; source = SLOT(newlabel); dest = SLOT(solabel); mls_copy(source, dest); } static void mls_socketpeer_set_from_mbuf(struct mbuf *m, struct label *mlabel, struct socket *so, struct label *sopeerlabel) { struct mac_mls *source, *dest; source = SLOT(mlabel); dest = SLOT(sopeerlabel); mls_copy_effective(source, dest); } static void mls_socketpeer_set_from_socket(struct socket *oldso, struct label *oldsolabel, struct socket *newso, struct label *newsopeerlabel) { struct mac_mls *source, *dest; source = SLOT(oldsolabel); dest = SLOT(newsopeerlabel); mls_copy_effective(source, dest); } static void mls_syncache_create(struct label *label, struct inpcb *inp) { struct mac_mls *source, *dest; source = SLOT(inp->inp_label); dest = SLOT(label); mls_copy_effective(source, dest); } static void mls_syncache_create_mbuf(struct label *sc_label, struct mbuf *m, struct label *mlabel) { struct mac_mls *source, *dest; source = SLOT(sc_label); dest = SLOT(mlabel); mls_copy_effective(source, dest); } static int mls_system_check_acct(struct ucred *cred, struct vnode *vp, struct label *vplabel) { struct mac_mls *subj, *obj; if (!mls_enabled) return (0); subj = SLOT(cred->cr_label); obj = SLOT(vplabel); if (!mls_dominate_effective(obj, subj) || !mls_dominate_effective(subj, obj)) return (EACCES); return (0); } static int mls_system_check_auditctl(struct ucred *cred, struct vnode *vp, struct label *vplabel) { struct mac_mls *subj, *obj; if (!mls_enabled) return (0); subj = SLOT(cred->cr_label); obj = SLOT(vplabel); if (!mls_dominate_effective(obj, subj) || !mls_dominate_effective(subj, obj)) return (EACCES); return (0); } static int mls_system_check_swapon(struct ucred *cred, struct vnode *vp, struct label *vplabel) { struct mac_mls *subj, *obj; if (!mls_enabled) return (0); subj = SLOT(cred->cr_label); obj = SLOT(vplabel); if (!mls_dominate_effective(obj, subj) || !mls_dominate_effective(subj, obj)) return (EACCES); return (0); } static void mls_sysvmsg_cleanup(struct label *msglabel) { bzero(SLOT(msglabel), sizeof(struct mac_mls)); } static void mls_sysvmsg_create(struct ucred *cred, struct msqid_kernel *msqkptr, struct label *msqlabel, struct msg *msgptr, struct label *msglabel) { struct mac_mls *source, *dest; /* Ignore the msgq label. */ source = SLOT(cred->cr_label); dest = SLOT(msglabel); mls_copy_effective(source, dest); } static int mls_sysvmsq_check_msgrcv(struct ucred *cred, struct msg *msgptr, struct label *msglabel) { struct mac_mls *subj, *obj; if (!mls_enabled) return (0); subj = SLOT(cred->cr_label); obj = SLOT(msglabel); if (!mls_dominate_effective(subj, obj)) return (EACCES); return (0); } static int mls_sysvmsq_check_msgrmid(struct ucred *cred, struct msg *msgptr, struct label *msglabel) { struct mac_mls *subj, *obj; if (!mls_enabled) return (0); subj = SLOT(cred->cr_label); obj = SLOT(msglabel); if (!mls_dominate_effective(obj, subj)) return (EACCES); return (0); } static int mls_sysvmsq_check_msqget(struct ucred *cred, struct msqid_kernel *msqkptr, struct label *msqklabel) { struct mac_mls *subj, *obj; if (!mls_enabled) return (0); subj = SLOT(cred->cr_label); obj = SLOT(msqklabel); if (!mls_dominate_effective(subj, obj)) return (EACCES); return (0); } static int mls_sysvmsq_check_msqsnd(struct ucred *cred, struct msqid_kernel *msqkptr, struct label *msqklabel) { struct mac_mls *subj, *obj; if (!mls_enabled) return (0); subj = SLOT(cred->cr_label); obj = SLOT(msqklabel); if (!mls_dominate_effective(obj, subj)) return (EACCES); return (0); } static int mls_sysvmsq_check_msqrcv(struct ucred *cred, struct msqid_kernel *msqkptr, struct label *msqklabel) { struct mac_mls *subj, *obj; if (!mls_enabled) return (0); subj = SLOT(cred->cr_label); obj = SLOT(msqklabel); if (!mls_dominate_effective(subj, obj)) return (EACCES); return (0); } static int mls_sysvmsq_check_msqctl(struct ucred *cred, struct msqid_kernel *msqkptr, struct label *msqklabel, int cmd) { struct mac_mls *subj, *obj; if (!mls_enabled) return (0); subj = SLOT(cred->cr_label); obj = SLOT(msqklabel); switch(cmd) { case IPC_RMID: case IPC_SET: if (!mls_dominate_effective(obj, subj)) return (EACCES); break; case IPC_STAT: if (!mls_dominate_effective(subj, obj)) return (EACCES); break; default: return (EACCES); } return (0); } static void mls_sysvmsq_cleanup(struct label *msqlabel) { bzero(SLOT(msqlabel), sizeof(struct mac_mls)); } static void mls_sysvmsq_create(struct ucred *cred, struct msqid_kernel *msqkptr, struct label *msqlabel) { struct mac_mls *source, *dest; source = SLOT(cred->cr_label); dest = SLOT(msqlabel); mls_copy_effective(source, dest); } static int mls_sysvsem_check_semctl(struct ucred *cred, struct semid_kernel *semakptr, struct label *semaklabel, int cmd) { struct mac_mls *subj, *obj; if (!mls_enabled) return (0); subj = SLOT(cred->cr_label); obj = SLOT(semaklabel); switch(cmd) { case IPC_RMID: case IPC_SET: case SETVAL: case SETALL: if (!mls_dominate_effective(obj, subj)) return (EACCES); break; case IPC_STAT: case GETVAL: case GETPID: case GETNCNT: case GETZCNT: case GETALL: if (!mls_dominate_effective(subj, obj)) return (EACCES); break; default: return (EACCES); } return (0); } static int mls_sysvsem_check_semget(struct ucred *cred, struct semid_kernel *semakptr, struct label *semaklabel) { struct mac_mls *subj, *obj; if (!mls_enabled) return (0); subj = SLOT(cred->cr_label); obj = SLOT(semaklabel); if (!mls_dominate_effective(subj, obj)) return (EACCES); return (0); } static int mls_sysvsem_check_semop(struct ucred *cred, struct semid_kernel *semakptr, struct label *semaklabel, size_t accesstype) { struct mac_mls *subj, *obj; if (!mls_enabled) return (0); subj = SLOT(cred->cr_label); obj = SLOT(semaklabel); if( accesstype & SEM_R ) if (!mls_dominate_effective(subj, obj)) return (EACCES); if( accesstype & SEM_A ) if (!mls_dominate_effective(obj, subj)) return (EACCES); return (0); } static void mls_sysvsem_cleanup(struct label *semalabel) { bzero(SLOT(semalabel), sizeof(struct mac_mls)); } static void mls_sysvsem_create(struct ucred *cred, struct semid_kernel *semakptr, struct label *semalabel) { struct mac_mls *source, *dest; source = SLOT(cred->cr_label); dest = SLOT(semalabel); mls_copy_effective(source, dest); } static int mls_sysvshm_check_shmat(struct ucred *cred, struct shmid_kernel *shmsegptr, struct label *shmseglabel, int shmflg) { struct mac_mls *subj, *obj; if (!mls_enabled) return (0); subj = SLOT(cred->cr_label); obj = SLOT(shmseglabel); if (!mls_dominate_effective(subj, obj)) return (EACCES); if ((shmflg & SHM_RDONLY) == 0) { if (!mls_dominate_effective(obj, subj)) return (EACCES); } return (0); } static int mls_sysvshm_check_shmctl(struct ucred *cred, struct shmid_kernel *shmsegptr, struct label *shmseglabel, int cmd) { struct mac_mls *subj, *obj; if (!mls_enabled) return (0); subj = SLOT(cred->cr_label); obj = SLOT(shmseglabel); switch(cmd) { case IPC_RMID: case IPC_SET: if (!mls_dominate_effective(obj, subj)) return (EACCES); break; case IPC_STAT: case SHM_STAT: if (!mls_dominate_effective(subj, obj)) return (EACCES); break; default: return (EACCES); } return (0); } static int mls_sysvshm_check_shmget(struct ucred *cred, struct shmid_kernel *shmsegptr, struct label *shmseglabel, int shmflg) { struct mac_mls *subj, *obj; if (!mls_enabled) return (0); subj = SLOT(cred->cr_label); obj = SLOT(shmseglabel); if (!mls_dominate_effective(obj, subj)) return (EACCES); return (0); } static void mls_sysvshm_cleanup(struct label *shmlabel) { bzero(SLOT(shmlabel), sizeof(struct mac_mls)); } static void mls_sysvshm_create(struct ucred *cred, struct shmid_kernel *shmsegptr, struct label *shmlabel) { struct mac_mls *source, *dest; source = SLOT(cred->cr_label); dest = SLOT(shmlabel); mls_copy_effective(source, dest); } static int mls_vnode_associate_extattr(struct mount *mp, struct label *mplabel, struct vnode *vp, struct label *vplabel) { struct mac_mls mm_temp, *source, *dest; int buflen, error; source = SLOT(mplabel); dest = SLOT(vplabel); buflen = sizeof(mm_temp); bzero(&mm_temp, buflen); error = vn_extattr_get(vp, IO_NODELOCKED, MAC_MLS_EXTATTR_NAMESPACE, MAC_MLS_EXTATTR_NAME, &buflen, (char *) &mm_temp, curthread); if (error == ENOATTR || error == EOPNOTSUPP) { /* Fall back to the mntlabel. */ mls_copy_effective(source, dest); return (0); } else if (error) return (error); if (buflen != sizeof(mm_temp)) { printf("mls_vnode_associate_extattr: bad size %d\n", buflen); return (EPERM); } if (mls_valid(&mm_temp) != 0) { printf("mls_vnode_associate_extattr: invalid\n"); return (EPERM); } if ((mm_temp.mm_flags & MAC_MLS_FLAGS_BOTH) != MAC_MLS_FLAG_EFFECTIVE) { printf("mls_associated_vnode_extattr: not effective\n"); return (EPERM); } mls_copy_effective(&mm_temp, dest); return (0); } static void mls_vnode_associate_singlelabel(struct mount *mp, struct label *mplabel, struct vnode *vp, struct label *vplabel) { struct mac_mls *source, *dest; source = SLOT(mplabel); dest = SLOT(vplabel); mls_copy_effective(source, dest); } static int mls_vnode_check_chdir(struct ucred *cred, struct vnode *dvp, struct label *dvplabel) { struct mac_mls *subj, *obj; if (!mls_enabled) return (0); subj = SLOT(cred->cr_label); obj = SLOT(dvplabel); if (!mls_dominate_effective(subj, obj)) return (EACCES); return (0); } static int mls_vnode_check_chroot(struct ucred *cred, struct vnode *dvp, struct label *dvplabel) { struct mac_mls *subj, *obj; if (!mls_enabled) return (0); subj = SLOT(cred->cr_label); obj = SLOT(dvplabel); if (!mls_dominate_effective(subj, obj)) return (EACCES); return (0); } static int mls_vnode_check_create(struct ucred *cred, struct vnode *dvp, struct label *dvplabel, struct componentname *cnp, struct vattr *vap) { struct mac_mls *subj, *obj; if (!mls_enabled) return (0); subj = SLOT(cred->cr_label); obj = SLOT(dvplabel); if (!mls_dominate_effective(obj, subj)) return (EACCES); return (0); } static int mls_vnode_check_deleteacl(struct ucred *cred, struct vnode *vp, struct label *vplabel, acl_type_t type) { struct mac_mls *subj, *obj; if (!mls_enabled) return (0); subj = SLOT(cred->cr_label); obj = SLOT(vplabel); if (!mls_dominate_effective(obj, subj)) return (EACCES); return (0); } static int mls_vnode_check_deleteextattr(struct ucred *cred, struct vnode *vp, struct label *vplabel, int attrnamespace, const char *name) { struct mac_mls *subj, *obj; if (!mls_enabled) return (0); subj = SLOT(cred->cr_label); obj = SLOT(vplabel); if (!mls_dominate_effective(obj, subj)) return (EACCES); return (0); } static int mls_vnode_check_exec(struct ucred *cred, struct vnode *vp, struct label *vplabel, struct image_params *imgp, struct label *execlabel) { struct mac_mls *subj, *obj, *exec; int error; if (execlabel != NULL) { /* * We currently don't permit labels to be changed at * exec-time as part of MLS, so disallow non-NULL MLS label * elements in the execlabel. */ exec = SLOT(execlabel); error = mls_atmostflags(exec, 0); if (error) return (error); } if (!mls_enabled) return (0); subj = SLOT(cred->cr_label); obj = SLOT(vplabel); if (!mls_dominate_effective(subj, obj)) return (EACCES); return (0); } static int mls_vnode_check_getacl(struct ucred *cred, struct vnode *vp, struct label *vplabel, acl_type_t type) { struct mac_mls *subj, *obj; if (!mls_enabled) return (0); subj = SLOT(cred->cr_label); obj = SLOT(vplabel); if (!mls_dominate_effective(subj, obj)) return (EACCES); return (0); } static int mls_vnode_check_getextattr(struct ucred *cred, struct vnode *vp, struct label *vplabel, int attrnamespace, const char *name, struct uio *uio) { struct mac_mls *subj, *obj; if (!mls_enabled) return (0); subj = SLOT(cred->cr_label); obj = SLOT(vplabel); if (!mls_dominate_effective(subj, obj)) return (EACCES); return (0); } static int mls_vnode_check_link(struct ucred *cred, struct vnode *dvp, struct label *dvplabel, struct vnode *vp, struct label *vplabel, struct componentname *cnp) { struct mac_mls *subj, *obj; if (!mls_enabled) return (0); subj = SLOT(cred->cr_label); obj = SLOT(dvplabel); if (!mls_dominate_effective(obj, subj)) return (EACCES); obj = SLOT(vplabel); if (!mls_dominate_effective(obj, subj)) return (EACCES); return (0); } static int mls_vnode_check_listextattr(struct ucred *cred, struct vnode *vp, struct label *vplabel, int attrnamespace) { struct mac_mls *subj, *obj; if (!mls_enabled) return (0); subj = SLOT(cred->cr_label); obj = SLOT(vplabel); if (!mls_dominate_effective(subj, obj)) return (EACCES); return (0); } static int mls_vnode_check_lookup(struct ucred *cred, struct vnode *dvp, struct label *dvplabel, struct componentname *cnp) { struct mac_mls *subj, *obj; if (!mls_enabled) return (0); subj = SLOT(cred->cr_label); obj = SLOT(dvplabel); if (!mls_dominate_effective(subj, obj)) return (EACCES); return (0); } static int mls_vnode_check_mmap(struct ucred *cred, struct vnode *vp, struct label *vplabel, int prot, int flags) { struct mac_mls *subj, *obj; /* * Rely on the use of open()-time protections to handle * non-revocation cases. */ if (!mls_enabled || !revocation_enabled) return (0); subj = SLOT(cred->cr_label); obj = SLOT(vplabel); if (prot & (VM_PROT_READ | VM_PROT_EXECUTE)) { if (!mls_dominate_effective(subj, obj)) return (EACCES); } if (((prot & VM_PROT_WRITE) != 0) && ((flags & MAP_SHARED) != 0)) { if (!mls_dominate_effective(obj, subj)) return (EACCES); } return (0); } static int mls_vnode_check_open(struct ucred *cred, struct vnode *vp, struct label *vplabel, int acc_mode) { struct mac_mls *subj, *obj; if (!mls_enabled) return (0); subj = SLOT(cred->cr_label); obj = SLOT(vplabel); /* XXX privilege override for admin? */ if (acc_mode & (VREAD | VEXEC | VSTAT)) { if (!mls_dominate_effective(subj, obj)) return (EACCES); } if (acc_mode & (VWRITE | VAPPEND | VADMIN)) { if (!mls_dominate_effective(obj, subj)) return (EACCES); } return (0); } static int mls_vnode_check_poll(struct ucred *active_cred, struct ucred *file_cred, struct vnode *vp, struct label *vplabel) { struct mac_mls *subj, *obj; if (!mls_enabled || !revocation_enabled) return (0); subj = SLOT(active_cred->cr_label); obj = SLOT(vplabel); if (!mls_dominate_effective(subj, obj)) return (EACCES); return (0); } static int mls_vnode_check_read(struct ucred *active_cred, struct ucred *file_cred, struct vnode *vp, struct label *vplabel) { struct mac_mls *subj, *obj; if (!mls_enabled || !revocation_enabled) return (0); subj = SLOT(active_cred->cr_label); obj = SLOT(vplabel); if (!mls_dominate_effective(subj, obj)) return (EACCES); return (0); } static int mls_vnode_check_readdir(struct ucred *cred, struct vnode *dvp, struct label *dvplabel) { struct mac_mls *subj, *obj; if (!mls_enabled) return (0); subj = SLOT(cred->cr_label); obj = SLOT(dvplabel); if (!mls_dominate_effective(subj, obj)) return (EACCES); return (0); } static int mls_vnode_check_readlink(struct ucred *cred, struct vnode *vp, struct label *vplabel) { struct mac_mls *subj, *obj; if (!mls_enabled) return (0); subj = SLOT(cred->cr_label); obj = SLOT(vplabel); if (!mls_dominate_effective(subj, obj)) return (EACCES); return (0); } static int mls_vnode_check_relabel(struct ucred *cred, struct vnode *vp, struct label *vplabel, struct label *newlabel) { struct mac_mls *old, *new, *subj; int error; old = SLOT(vplabel); new = SLOT(newlabel); subj = SLOT(cred->cr_label); /* * If there is an MLS label update for the vnode, it must be a * effective label. */ error = mls_atmostflags(new, MAC_MLS_FLAG_EFFECTIVE); if (error) return (error); /* * To perform a relabel of the vnode (MLS label or not), MLS must * authorize the relabel. */ if (!mls_effective_in_range(old, subj)) return (EPERM); /* * If the MLS label is to be changed, authorize as appropriate. */ if (new->mm_flags & MAC_MLS_FLAG_EFFECTIVE) { /* * To change the MLS label on a vnode, the new vnode label * must be in the subject range. */ if (!mls_effective_in_range(new, subj)) return (EPERM); /* * To change the MLS label on the vnode to be EQUAL, the * subject must have appropriate privilege. */ if (mls_contains_equal(new)) { error = mls_subject_privileged(subj); if (error) return (error); } } return (0); } static int mls_vnode_check_rename_from(struct ucred *cred, struct vnode *dvp, struct label *dvplabel, struct vnode *vp, struct label *vplabel, struct componentname *cnp) { struct mac_mls *subj, *obj; if (!mls_enabled) return (0); subj = SLOT(cred->cr_label); obj = SLOT(dvplabel); if (!mls_dominate_effective(obj, subj)) return (EACCES); obj = SLOT(vplabel); if (!mls_dominate_effective(obj, subj)) return (EACCES); return (0); } static int mls_vnode_check_rename_to(struct ucred *cred, struct vnode *dvp, struct label *dvplabel, struct vnode *vp, struct label *vplabel, int samedir, struct componentname *cnp) { struct mac_mls *subj, *obj; if (!mls_enabled) return (0); subj = SLOT(cred->cr_label); obj = SLOT(dvplabel); if (!mls_dominate_effective(obj, subj)) return (EACCES); if (vp != NULL) { obj = SLOT(vplabel); if (!mls_dominate_effective(obj, subj)) return (EACCES); } return (0); } static int mls_vnode_check_revoke(struct ucred *cred, struct vnode *vp, struct label *vplabel) { struct mac_mls *subj, *obj; if (!mls_enabled) return (0); subj = SLOT(cred->cr_label); obj = SLOT(vplabel); if (!mls_dominate_effective(obj, subj)) return (EACCES); return (0); } static int mls_vnode_check_setacl(struct ucred *cred, struct vnode *vp, struct label *vplabel, acl_type_t type, struct acl *acl) { struct mac_mls *subj, *obj; if (!mls_enabled) return (0); subj = SLOT(cred->cr_label); obj = SLOT(vplabel); if (!mls_dominate_effective(obj, subj)) return (EACCES); return (0); } static int mls_vnode_check_setextattr(struct ucred *cred, struct vnode *vp, struct label *vplabel, int attrnamespace, const char *name, struct uio *uio) { struct mac_mls *subj, *obj; if (!mls_enabled) return (0); subj = SLOT(cred->cr_label); obj = SLOT(vplabel); if (!mls_dominate_effective(obj, subj)) return (EACCES); /* XXX: protect the MAC EA in a special way? */ return (0); } static int mls_vnode_check_setflags(struct ucred *cred, struct vnode *vp, struct label *vplabel, u_long flags) { struct mac_mls *subj, *obj; if (!mls_enabled) return (0); subj = SLOT(cred->cr_label); obj = SLOT(vplabel); if (!mls_dominate_effective(obj, subj)) return (EACCES); return (0); } static int mls_vnode_check_setmode(struct ucred *cred, struct vnode *vp, struct label *vplabel, mode_t mode) { struct mac_mls *subj, *obj; if (!mls_enabled) return (0); subj = SLOT(cred->cr_label); obj = SLOT(vplabel); if (!mls_dominate_effective(obj, subj)) return (EACCES); return (0); } static int mls_vnode_check_setowner(struct ucred *cred, struct vnode *vp, struct label *vplabel, uid_t uid, gid_t gid) { struct mac_mls *subj, *obj; if (!mls_enabled) return (0); subj = SLOT(cred->cr_label); obj = SLOT(vplabel); if (!mls_dominate_effective(obj, subj)) return (EACCES); return (0); } static int mls_vnode_check_setutimes(struct ucred *cred, struct vnode *vp, struct label *vplabel, struct timespec atime, struct timespec mtime) { struct mac_mls *subj, *obj; if (!mls_enabled) return (0); subj = SLOT(cred->cr_label); obj = SLOT(vplabel); if (!mls_dominate_effective(obj, subj)) return (EACCES); return (0); } static int mls_vnode_check_stat(struct ucred *active_cred, struct ucred *file_cred, struct vnode *vp, struct label *vplabel) { struct mac_mls *subj, *obj; if (!mls_enabled) return (0); subj = SLOT(active_cred->cr_label); obj = SLOT(vplabel); if (!mls_dominate_effective(subj, obj)) return (EACCES); return (0); } static int mls_vnode_check_unlink(struct ucred *cred, struct vnode *dvp, struct label *dvplabel, struct vnode *vp, struct label *vplabel, struct componentname *cnp) { struct mac_mls *subj, *obj; if (!mls_enabled) return (0); subj = SLOT(cred->cr_label); obj = SLOT(dvplabel); if (!mls_dominate_effective(obj, subj)) return (EACCES); obj = SLOT(vplabel); if (!mls_dominate_effective(obj, subj)) return (EACCES); return (0); } static int mls_vnode_check_write(struct ucred *active_cred, struct ucred *file_cred, struct vnode *vp, struct label *vplabel) { struct mac_mls *subj, *obj; if (!mls_enabled || !revocation_enabled) return (0); subj = SLOT(active_cred->cr_label); obj = SLOT(vplabel); if (!mls_dominate_effective(obj, subj)) return (EACCES); return (0); } static int mls_vnode_create_extattr(struct ucred *cred, struct mount *mp, struct label *mplabel, struct vnode *dvp, struct label *dvplabel, struct vnode *vp, struct label *vplabel, struct componentname *cnp) { struct mac_mls *source, *dest, mm_temp; size_t buflen; int error; buflen = sizeof(mm_temp); bzero(&mm_temp, buflen); source = SLOT(cred->cr_label); dest = SLOT(vplabel); mls_copy_effective(source, &mm_temp); error = vn_extattr_set(vp, IO_NODELOCKED, MAC_MLS_EXTATTR_NAMESPACE, MAC_MLS_EXTATTR_NAME, buflen, (char *) &mm_temp, curthread); if (error == 0) mls_copy_effective(source, dest); return (error); } static void mls_vnode_relabel(struct ucred *cred, struct vnode *vp, struct label *vplabel, struct label *label) { struct mac_mls *source, *dest; source = SLOT(label); dest = SLOT(vplabel); mls_copy(source, dest); } static int mls_vnode_setlabel_extattr(struct ucred *cred, struct vnode *vp, struct label *vplabel, struct label *intlabel) { struct mac_mls *source, mm_temp; size_t buflen; int error; buflen = sizeof(mm_temp); bzero(&mm_temp, buflen); source = SLOT(intlabel); if ((source->mm_flags & MAC_MLS_FLAG_EFFECTIVE) == 0) return (0); mls_copy_effective(source, &mm_temp); error = vn_extattr_set(vp, IO_NODELOCKED, MAC_MLS_EXTATTR_NAMESPACE, MAC_MLS_EXTATTR_NAME, buflen, (char *) &mm_temp, curthread); return (error); } static struct mac_policy_ops mls_ops = { .mpo_init = mls_init, .mpo_bpfdesc_check_receive = mls_bpfdesc_check_receive, .mpo_bpfdesc_create = mls_bpfdesc_create, .mpo_bpfdesc_create_mbuf = mls_bpfdesc_create_mbuf, .mpo_bpfdesc_destroy_label = mls_destroy_label, .mpo_bpfdesc_init_label = mls_init_label, .mpo_cred_check_relabel = mls_cred_check_relabel, .mpo_cred_check_visible = mls_cred_check_visible, .mpo_cred_copy_label = mls_copy_label, .mpo_cred_destroy_label = mls_destroy_label, .mpo_cred_externalize_label = mls_externalize_label, .mpo_cred_init_label = mls_init_label, .mpo_cred_internalize_label = mls_internalize_label, .mpo_cred_relabel = mls_cred_relabel, .mpo_devfs_create_device = mls_devfs_create_device, .mpo_devfs_create_directory = mls_devfs_create_directory, .mpo_devfs_create_symlink = mls_devfs_create_symlink, .mpo_devfs_destroy_label = mls_destroy_label, .mpo_devfs_init_label = mls_init_label, .mpo_devfs_update = mls_devfs_update, .mpo_devfs_vnode_associate = mls_devfs_vnode_associate, .mpo_ifnet_check_relabel = mls_ifnet_check_relabel, .mpo_ifnet_check_transmit = mls_ifnet_check_transmit, .mpo_ifnet_copy_label = mls_copy_label, .mpo_ifnet_create = mls_ifnet_create, .mpo_ifnet_create_mbuf = mls_ifnet_create_mbuf, .mpo_ifnet_destroy_label = mls_destroy_label, .mpo_ifnet_externalize_label = mls_externalize_label, .mpo_ifnet_init_label = mls_init_label, .mpo_ifnet_internalize_label = mls_internalize_label, .mpo_ifnet_relabel = mls_ifnet_relabel, .mpo_inpcb_check_deliver = mls_inpcb_check_deliver, .mpo_inpcb_create = mls_inpcb_create, .mpo_inpcb_create_mbuf = mls_inpcb_create_mbuf, .mpo_inpcb_destroy_label = mls_destroy_label, .mpo_inpcb_init_label = mls_init_label_waitcheck, .mpo_inpcb_sosetlabel = mls_inpcb_sosetlabel, .mpo_ipq_create = mls_ipq_create, .mpo_ipq_destroy_label = mls_destroy_label, .mpo_ipq_init_label = mls_init_label_waitcheck, .mpo_ipq_match = mls_ipq_match, .mpo_ipq_reassemble = mls_ipq_reassemble, .mpo_ipq_update = mls_ipq_update, .mpo_mbuf_copy_label = mls_copy_label, .mpo_mbuf_destroy_label = mls_destroy_label, .mpo_mbuf_init_label = mls_init_label_waitcheck, .mpo_mount_check_stat = mls_mount_check_stat, .mpo_mount_create = mls_mount_create, .mpo_mount_destroy_label = mls_destroy_label, .mpo_mount_init_label = mls_init_label, .mpo_netatalk_aarp_send = mls_netatalk_aarp_send, .mpo_netinet_arp_send = mls_netinet_arp_send, .mpo_netinet_firewall_reply = mls_netinet_firewall_reply, .mpo_netinet_firewall_send = mls_netinet_firewall_send, .mpo_netinet_fragment = mls_netinet_fragment, .mpo_netinet_icmp_reply = mls_netinet_icmp_reply, .mpo_netinet_igmp_send = mls_netinet_igmp_send, .mpo_netinet6_nd6_send = mls_netinet6_nd6_send, .mpo_pipe_check_ioctl = mls_pipe_check_ioctl, .mpo_pipe_check_poll = mls_pipe_check_poll, .mpo_pipe_check_read = mls_pipe_check_read, .mpo_pipe_check_relabel = mls_pipe_check_relabel, .mpo_pipe_check_stat = mls_pipe_check_stat, .mpo_pipe_check_write = mls_pipe_check_write, .mpo_pipe_copy_label = mls_copy_label, .mpo_pipe_create = mls_pipe_create, .mpo_pipe_destroy_label = mls_destroy_label, .mpo_pipe_externalize_label = mls_externalize_label, .mpo_pipe_init_label = mls_init_label, .mpo_pipe_internalize_label = mls_internalize_label, .mpo_pipe_relabel = mls_pipe_relabel, - .mpo_posixsem_check_destroy = mls_posixsem_check_write, .mpo_posixsem_check_getvalue = mls_posixsem_check_rdonly, .mpo_posixsem_check_open = mls_posixsem_check_write, .mpo_posixsem_check_post = mls_posixsem_check_write, .mpo_posixsem_check_unlink = mls_posixsem_check_write, .mpo_posixsem_check_wait = mls_posixsem_check_write, .mpo_posixsem_create = mls_posixsem_create, .mpo_posixsem_destroy_label = mls_destroy_label, .mpo_posixsem_init_label = mls_init_label, .mpo_proc_associate_nfsd = mls_proc_associate_nfsd, .mpo_proc_check_debug = mls_proc_check_debug, .mpo_proc_check_sched = mls_proc_check_sched, .mpo_proc_check_signal = mls_proc_check_signal, .mpo_proc_create_init = mls_proc_create_init, .mpo_proc_create_swapper = mls_proc_create_swapper, .mpo_socket_check_deliver = mls_socket_check_deliver, .mpo_socket_check_relabel = mls_socket_check_relabel, .mpo_socket_check_visible = mls_socket_check_visible, .mpo_socket_copy_label = mls_copy_label, .mpo_socket_create = mls_socket_create, .mpo_socket_create_mbuf = mls_socket_create_mbuf, .mpo_socket_destroy_label = mls_destroy_label, .mpo_socket_externalize_label = mls_externalize_label, .mpo_socket_init_label = mls_init_label_waitcheck, .mpo_socket_internalize_label = mls_internalize_label, .mpo_socket_newconn = mls_socket_newconn, .mpo_socket_relabel = mls_socket_relabel, .mpo_socketpeer_destroy_label = mls_destroy_label, .mpo_socketpeer_externalize_label = mls_externalize_label, .mpo_socketpeer_init_label = mls_init_label_waitcheck, .mpo_socketpeer_set_from_mbuf = mls_socketpeer_set_from_mbuf, .mpo_socketpeer_set_from_socket = mls_socketpeer_set_from_socket, .mpo_syncache_create = mls_syncache_create, .mpo_syncache_create_mbuf = mls_syncache_create_mbuf, .mpo_syncache_destroy_label = mls_destroy_label, .mpo_syncache_init_label = mls_init_label_waitcheck, .mpo_sysvmsg_cleanup = mls_sysvmsg_cleanup, .mpo_sysvmsg_create = mls_sysvmsg_create, .mpo_sysvmsg_destroy_label = mls_destroy_label, .mpo_sysvmsg_init_label = mls_init_label, .mpo_sysvmsq_check_msgrcv = mls_sysvmsq_check_msgrcv, .mpo_sysvmsq_check_msgrmid = mls_sysvmsq_check_msgrmid, .mpo_sysvmsq_check_msqget = mls_sysvmsq_check_msqget, .mpo_sysvmsq_check_msqsnd = mls_sysvmsq_check_msqsnd, .mpo_sysvmsq_check_msqrcv = mls_sysvmsq_check_msqrcv, .mpo_sysvmsq_check_msqctl = mls_sysvmsq_check_msqctl, .mpo_sysvmsq_cleanup = mls_sysvmsq_cleanup, .mpo_sysvmsq_destroy_label = mls_destroy_label, .mpo_sysvmsq_init_label = mls_init_label, .mpo_sysvmsq_create = mls_sysvmsq_create, .mpo_sysvsem_check_semctl = mls_sysvsem_check_semctl, .mpo_sysvsem_check_semget = mls_sysvsem_check_semget, .mpo_sysvsem_check_semop = mls_sysvsem_check_semop, .mpo_sysvsem_cleanup = mls_sysvsem_cleanup, .mpo_sysvsem_create = mls_sysvsem_create, .mpo_sysvsem_destroy_label = mls_destroy_label, .mpo_sysvsem_init_label = mls_init_label, .mpo_sysvshm_check_shmat = mls_sysvshm_check_shmat, .mpo_sysvshm_check_shmctl = mls_sysvshm_check_shmctl, .mpo_sysvshm_check_shmget = mls_sysvshm_check_shmget, .mpo_sysvshm_cleanup = mls_sysvshm_cleanup, .mpo_sysvshm_create = mls_sysvshm_create, .mpo_sysvshm_destroy_label = mls_destroy_label, .mpo_sysvshm_init_label = mls_init_label, .mpo_system_check_acct = mls_system_check_acct, .mpo_system_check_auditctl = mls_system_check_auditctl, .mpo_system_check_swapon = mls_system_check_swapon, .mpo_vnode_associate_extattr = mls_vnode_associate_extattr, .mpo_vnode_associate_singlelabel = mls_vnode_associate_singlelabel, .mpo_vnode_check_access = mls_vnode_check_open, .mpo_vnode_check_chdir = mls_vnode_check_chdir, .mpo_vnode_check_chroot = mls_vnode_check_chroot, .mpo_vnode_check_create = mls_vnode_check_create, .mpo_vnode_check_deleteacl = mls_vnode_check_deleteacl, .mpo_vnode_check_deleteextattr = mls_vnode_check_deleteextattr, .mpo_vnode_check_exec = mls_vnode_check_exec, .mpo_vnode_check_getacl = mls_vnode_check_getacl, .mpo_vnode_check_getextattr = mls_vnode_check_getextattr, .mpo_vnode_check_link = mls_vnode_check_link, .mpo_vnode_check_listextattr = mls_vnode_check_listextattr, .mpo_vnode_check_lookup = mls_vnode_check_lookup, .mpo_vnode_check_mmap = mls_vnode_check_mmap, .mpo_vnode_check_open = mls_vnode_check_open, .mpo_vnode_check_poll = mls_vnode_check_poll, .mpo_vnode_check_read = mls_vnode_check_read, .mpo_vnode_check_readdir = mls_vnode_check_readdir, .mpo_vnode_check_readlink = mls_vnode_check_readlink, .mpo_vnode_check_relabel = mls_vnode_check_relabel, .mpo_vnode_check_rename_from = mls_vnode_check_rename_from, .mpo_vnode_check_rename_to = mls_vnode_check_rename_to, .mpo_vnode_check_revoke = mls_vnode_check_revoke, .mpo_vnode_check_setacl = mls_vnode_check_setacl, .mpo_vnode_check_setextattr = mls_vnode_check_setextattr, .mpo_vnode_check_setflags = mls_vnode_check_setflags, .mpo_vnode_check_setmode = mls_vnode_check_setmode, .mpo_vnode_check_setowner = mls_vnode_check_setowner, .mpo_vnode_check_setutimes = mls_vnode_check_setutimes, .mpo_vnode_check_stat = mls_vnode_check_stat, .mpo_vnode_check_unlink = mls_vnode_check_unlink, .mpo_vnode_check_write = mls_vnode_check_write, .mpo_vnode_copy_label = mls_copy_label, .mpo_vnode_create_extattr = mls_vnode_create_extattr, .mpo_vnode_destroy_label = mls_destroy_label, .mpo_vnode_externalize_label = mls_externalize_label, .mpo_vnode_init_label = mls_init_label, .mpo_vnode_internalize_label = mls_internalize_label, .mpo_vnode_relabel = mls_vnode_relabel, .mpo_vnode_setlabel_extattr = mls_vnode_setlabel_extattr, }; MAC_POLICY_SET(&mls_ops, mac_mls, "TrustedBSD MAC/MLS", MPC_LOADTIME_FLAG_NOTLATE | MPC_LOADTIME_FLAG_LABELMBUFS, &mls_slot); Index: head/sys/security/mac_stub/mac_stub.c =================================================================== --- head/sys/security/mac_stub/mac_stub.c (revision 179962) +++ head/sys/security/mac_stub/mac_stub.c (revision 179963) @@ -1,1758 +1,1749 @@ /*- * Copyright (c) 1999-2002, 2007 Robert N. M. Watson * Copyright (c) 2001-2005 McAfee, Inc. * Copyright (c) 2005-2006 SPARTA, Inc. * All rights reserved. * * This software was developed by Robert Watson for the TrustedBSD Project. * * This software was developed for the FreeBSD Project in part by McAfee * Research, the Security Research Division of McAfee, Inc. under * DARPA/SPAWAR contract N66001-01-C-8035 ("CBOSS"), as part of the DARPA * CHATS research program. * * This software was enhanced by SPARTA ISSO under SPAWAR contract * N66001-04-C-6019 ("SEFOS"). * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * $FreeBSD$ */ /* * Developed by the TrustedBSD Project. * * Stub module that implements a NOOP for most (if not all) MAC Framework * policy entry points. */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include SYSCTL_DECL(_security_mac); SYSCTL_NODE(_security_mac, OID_AUTO, stub, CTLFLAG_RW, 0, "TrustedBSD mac_stub policy controls"); static int stub_enabled = 1; SYSCTL_INT(_security_mac_stub, OID_AUTO, enabled, CTLFLAG_RW, &stub_enabled, 0, "Enforce mac_stub policy"); /* * Policy module operations. */ static void stub_destroy(struct mac_policy_conf *conf) { } static void stub_init(struct mac_policy_conf *conf) { } static int stub_syscall(struct thread *td, int call, void *arg) { return (0); } /* * Label operations. */ static void stub_init_label(struct label *label) { } static int stub_init_label_waitcheck(struct label *label, int flag) { return (0); } static void stub_destroy_label(struct label *label) { } static void stub_copy_label(struct label *src, struct label *dest) { } static int stub_externalize_label(struct label *label, char *element_name, struct sbuf *sb, int *claimed) { return (0); } static int stub_internalize_label(struct label *label, char *element_name, char *element_data, int *claimed) { return (0); } /* * Object-specific entry point imeplementations are sorted alphabetically by * object type name and then by operation. */ static int stub_bpfdesc_check_receive(struct bpf_d *d, struct label *dlabel, struct ifnet *ifp, struct label *ifplabel) { return (0); } static void stub_bpfdesc_create(struct ucred *cred, struct bpf_d *d, struct label *dlabel) { } static void stub_bpfdesc_create_mbuf(struct bpf_d *d, struct label *dlabel, struct mbuf *m, struct label *mlabel) { } static int stub_cred_check_relabel(struct ucred *cred, struct label *newlabel) { return (0); } static int stub_cred_check_visible(struct ucred *cr1, struct ucred *cr2) { return (0); } static void stub_cred_relabel(struct ucred *cred, struct label *newlabel) { } static void stub_devfs_create_device(struct ucred *cred, struct mount *mp, struct cdev *dev, struct devfs_dirent *de, struct label *delabel) { } static void stub_devfs_create_directory(struct mount *mp, char *dirname, int dirnamelen, struct devfs_dirent *de, struct label *delabel) { } static void stub_devfs_create_symlink(struct ucred *cred, struct mount *mp, struct devfs_dirent *dd, struct label *ddlabel, struct devfs_dirent *de, struct label *delabel) { } static void stub_devfs_update(struct mount *mp, struct devfs_dirent *de, struct label *delabel, struct vnode *vp, struct label *vplabel) { } static void stub_devfs_vnode_associate(struct mount *mp, struct label *mplabel, struct devfs_dirent *de, struct label *delabel, struct vnode *vp, struct label *vplabel) { } static int stub_ifnet_check_relabel(struct ucred *cred, struct ifnet *ifp, struct label *ifplabel, struct label *newlabel) { return (0); } static int stub_ifnet_check_transmit(struct ifnet *ifp, struct label *ifplabel, struct mbuf *m, struct label *mlabel) { return (0); } static void stub_ifnet_create(struct ifnet *ifp, struct label *ifplabel) { } static void stub_ifnet_create_mbuf(struct ifnet *ifp, struct label *ifplabel, struct mbuf *m, struct label *mlabel) { } static void stub_ifnet_relabel(struct ucred *cred, struct ifnet *ifp, struct label *ifplabel, struct label *newlabel) { } static int stub_inpcb_check_deliver(struct inpcb *inp, struct label *inplabel, struct mbuf *m, struct label *mlabel) { return (0); } static void stub_inpcb_create(struct socket *so, struct label *solabel, struct inpcb *inp, struct label *inplabel) { } static void stub_inpcb_create_mbuf(struct inpcb *inp, struct label *inplabel, struct mbuf *m, struct label *mlabel) { } static void stub_inpcb_sosetlabel(struct socket *so, struct label *solabel, struct inpcb *inp, struct label *inplabel) { } static void stub_ipq_create(struct mbuf *m, struct label *mlabel, struct ipq *q, struct label *qlabel) { } static int stub_ipq_match(struct mbuf *m, struct label *mlabel, struct ipq *q, struct label *qlabel) { return (1); } static void stub_ipq_reassemble(struct ipq *q, struct label *qlabel, struct mbuf *m, struct label *mlabel) { } static void stub_ipq_update(struct mbuf *m, struct label *mlabel, struct ipq *q, struct label *qlabel) { } static int stub_kenv_check_dump(struct ucred *cred) { return (0); } static int stub_kenv_check_get(struct ucred *cred, char *name) { return (0); } static int stub_kenv_check_set(struct ucred *cred, char *name, char *value) { return (0); } static int stub_kenv_check_unset(struct ucred *cred, char *name) { return (0); } static int stub_kld_check_load(struct ucred *cred, struct vnode *vp, struct label *vplabel) { return (0); } static int stub_kld_check_stat(struct ucred *cred) { return (0); } static int stub_mount_check_stat(struct ucred *cred, struct mount *mp, struct label *mplabel) { return (0); } static void stub_mount_create(struct ucred *cred, struct mount *mp, struct label *mplabel) { } static void stub_netatalk_aarp_send(struct ifnet *ifp, struct label *iflpabel, struct mbuf *m, struct label *mlabel) { } static void stub_netinet_arp_send(struct ifnet *ifp, struct label *iflpabel, struct mbuf *m, struct label *mlabel) { } static void stub_netinet_firewall_reply(struct mbuf *mrecv, struct label *mrecvlabel, struct mbuf *msend, struct label *msendlabel) { } static void stub_netinet_firewall_send(struct mbuf *m, struct label *mlabel) { } static void stub_netinet_fragment(struct mbuf *m, struct label *mlabel, struct mbuf *frag, struct label *fraglabel) { } static void stub_netinet_icmp_reply(struct mbuf *mrecv, struct label *mrecvlabel, struct mbuf *msend, struct label *msendlabel) { } static void stub_netinet_icmp_replyinplace(struct mbuf *m, struct label *mlabel) { } static void stub_netinet_igmp_send(struct ifnet *ifp, struct label *iflpabel, struct mbuf *m, struct label *mlabel) { } static void stub_netinet_tcp_reply(struct mbuf *m, struct label *mlabel) { } static void stub_netinet6_nd6_send(struct ifnet *ifp, struct label *iflpabel, struct mbuf *m, struct label *mlabel) { } static int stub_pipe_check_ioctl(struct ucred *cred, struct pipepair *pp, struct label *pplabel, unsigned long cmd, void /* caddr_t */ *data) { return (0); } static int stub_pipe_check_poll(struct ucred *cred, struct pipepair *pp, struct label *pplabel) { return (0); } static int stub_pipe_check_read(struct ucred *cred, struct pipepair *pp, struct label *pplabel) { return (0); } static int stub_pipe_check_relabel(struct ucred *cred, struct pipepair *pp, struct label *pplabel, struct label *newlabel) { return (0); } static int stub_pipe_check_stat(struct ucred *cred, struct pipepair *pp, struct label *pplabel) { return (0); } static int stub_pipe_check_write(struct ucred *cred, struct pipepair *pp, struct label *pplabel) { return (0); } static void stub_pipe_create(struct ucred *cred, struct pipepair *pp, struct label *pplabel) { } static void stub_pipe_relabel(struct ucred *cred, struct pipepair *pp, struct label *pplabel, struct label *newlabel) { } static int -stub_posixsem_check_destroy(struct ucred *cred, struct ksem *ks, - struct label *kslabel) -{ - - return (0); -} - -static int stub_posixsem_check_getvalue(struct ucred *cred, struct ksem *ks, struct label *kslabel) { return (0); } static int stub_posixsem_check_open(struct ucred *cred, struct ksem *ks, struct label *kslabel) { return (0); } static int stub_posixsem_check_post(struct ucred *cred, struct ksem *ks, struct label *kslabel) { return (0); } static int stub_posixsem_check_unlink(struct ucred *cred, struct ksem *ks, struct label *kslabel) { return (0); } static int stub_posixsem_check_wait(struct ucred *cred, struct ksem *ks, struct label *kslabel) { return (0); } static void stub_posixsem_create(struct ucred *cred, struct ksem *ks, struct label *kslabel) { } static int stub_posixshm_check_mmap(struct ucred *cred, struct shmfd *shmfd, struct label *shmlabel, int prot, int flags) { return (0); } static int stub_posixshm_check_open(struct ucred *cred, struct shmfd *shmfd, struct label *shmlabel) { return (0); } static int stub_posixshm_check_stat(struct ucred *active_cred, struct ucred *file_cred, struct shmfd *shmfd, struct label *shmlabel) { return (0); } static int stub_posixshm_check_truncate(struct ucred *active_cred, struct ucred *file_cred, struct shmfd *shmfd, struct label *shmlabel) { return (0); } static int stub_posixshm_check_unlink(struct ucred *cred, struct shmfd *shmfd, struct label *shmlabel) { return (0); } static void stub_posixshm_create(struct ucred *cred, struct shmfd *shmfd, struct label *shmlabel) { } static int stub_priv_check(struct ucred *cred, int priv) { return (0); } static int stub_priv_grant(struct ucred *cred, int priv) { return (EPERM); } static void stub_proc_associate_nfsd(struct ucred *cred) { } static int stub_proc_check_debug(struct ucred *cred, struct proc *p) { return (0); } static int stub_proc_check_sched(struct ucred *cred, struct proc *p) { return (0); } static int stub_proc_check_setaudit(struct ucred *cred, struct auditinfo *ai) { return (0); } static int stub_proc_check_setaudit_addr(struct ucred *cred, struct auditinfo_addr *aia) { return (0); } static int stub_proc_check_setauid(struct ucred *cred, uid_t auid) { return (0); } static int stub_proc_check_setegid(struct ucred *cred, gid_t egid) { return (0); } static int stub_proc_check_seteuid(struct ucred *cred, uid_t euid) { return (0); } static int stub_proc_check_setgid(struct ucred *cred, gid_t gid) { return (0); } static int stub_proc_check_setgroups(struct ucred *cred, int ngroups, gid_t *gidset) { return (0); } static int stub_proc_check_setregid(struct ucred *cred, gid_t rgid, gid_t egid) { return (0); } static int stub_proc_check_setresgid(struct ucred *cred, gid_t rgid, gid_t egid, gid_t sgid) { return (0); } static int stub_proc_check_setresuid(struct ucred *cred, uid_t ruid, uid_t euid, uid_t suid) { return (0); } static int stub_proc_check_setreuid(struct ucred *cred, uid_t ruid, uid_t euid) { return (0); } static int stub_proc_check_setuid(struct ucred *cred, uid_t uid) { return (0); } static int stub_proc_check_signal(struct ucred *cred, struct proc *p, int signum) { return (0); } static int stub_proc_check_wait(struct ucred *cred, struct proc *p) { return (0); } static void stub_proc_create_init(struct ucred *cred) { } static void stub_proc_create_swapper(struct ucred *cred) { } static int stub_socket_check_accept(struct ucred *cred, struct socket *so, struct label *solabel) { return (0); } static int stub_socket_check_bind(struct ucred *cred, struct socket *so, struct label *solabel, struct sockaddr *sa) { return (0); } static int stub_socket_check_connect(struct ucred *cred, struct socket *so, struct label *solabel, struct sockaddr *sa) { return (0); } static int stub_socket_check_create(struct ucred *cred, int domain, int type, int proto) { return (0); } static int stub_socket_check_deliver(struct socket *so, struct label *solabel, struct mbuf *m, struct label *mlabel) { return (0); } static int stub_socket_check_listen(struct ucred *cred, struct socket *so, struct label *solabel) { return (0); } static int stub_socket_check_poll(struct ucred *cred, struct socket *so, struct label *solabel) { return (0); } static int stub_socket_check_receive(struct ucred *cred, struct socket *so, struct label *solabel) { return (0); } static int stub_socket_check_relabel(struct ucred *cred, struct socket *so, struct label *solabel, struct label *newlabel) { return (0); } static int stub_socket_check_send(struct ucred *cred, struct socket *so, struct label *solabel) { return (0); } static int stub_socket_check_stat(struct ucred *cred, struct socket *so, struct label *solabel) { return (0); } static int stub_socket_check_visible(struct ucred *cred, struct socket *so, struct label *solabel) { return (0); } static void stub_socket_create(struct ucred *cred, struct socket *so, struct label *solabel) { } static void stub_socket_create_mbuf(struct socket *so, struct label *solabel, struct mbuf *m, struct label *mlabel) { } static void stub_socket_newconn(struct socket *oldso, struct label *oldsolabel, struct socket *newso, struct label *newsolabel) { } static void stub_socket_relabel(struct ucred *cred, struct socket *so, struct label *solabel, struct label *newlabel) { } static void stub_socketpeer_set_from_mbuf(struct mbuf *m, struct label *mlabel, struct socket *so, struct label *sopeerlabel) { } static void stub_socketpeer_set_from_socket(struct socket *oldso, struct label *oldsolabel, struct socket *newso, struct label *newsopeerlabel) { } static void stub_syncache_create(struct label *label, struct inpcb *inp) { } static void stub_syncache_create_mbuf(struct label *sc_label, struct mbuf *m, struct label *mlabel) { } static int stub_system_check_acct(struct ucred *cred, struct vnode *vp, struct label *vplabel) { return (0); } static int stub_system_check_audit(struct ucred *cred, void *record, int length) { return (0); } static int stub_system_check_auditctl(struct ucred *cred, struct vnode *vp, struct label *vplabel) { return (0); } static int stub_system_check_auditon(struct ucred *cred, int cmd) { return (0); } static int stub_system_check_reboot(struct ucred *cred, int how) { return (0); } static int stub_system_check_swapoff(struct ucred *cred, struct vnode *vp, struct label *vplabel) { return (0); } static int stub_system_check_swapon(struct ucred *cred, struct vnode *vp, struct label *vplabel) { return (0); } static int stub_system_check_sysctl(struct ucred *cred, struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req) { return (0); } static int stub_vnode_check_access(struct ucred *cred, struct vnode *vp, struct label *vplabel, int acc_mode) { return (0); } static int stub_vnode_check_chdir(struct ucred *cred, struct vnode *dvp, struct label *dvplabel) { return (0); } static int stub_vnode_check_chroot(struct ucred *cred, struct vnode *dvp, struct label *dvplabel) { return (0); } static int stub_vnode_check_create(struct ucred *cred, struct vnode *dvp, struct label *dvplabel, struct componentname *cnp, struct vattr *vap) { return (0); } static void stub_sysvmsg_cleanup(struct label *msglabel) { } static void stub_sysvmsg_create(struct ucred *cred, struct msqid_kernel *msqkptr, struct label *msqlabel, struct msg *msgptr, struct label *msglabel) { } static int stub_sysvmsq_check_msgmsq(struct ucred *cred, struct msg *msgptr, struct label *msglabel, struct msqid_kernel *msqkptr, struct label *msqklabel) { return (0); } static int stub_sysvmsq_check_msgrcv(struct ucred *cred, struct msg *msgptr, struct label *msglabel) { return (0); } static int stub_sysvmsq_check_msgrmid(struct ucred *cred, struct msg *msgptr, struct label *msglabel) { return (0); } static int stub_sysvmsq_check_msqget(struct ucred *cred, struct msqid_kernel *msqkptr, struct label *msqklabel) { return (0); } static int stub_sysvmsq_check_msqsnd(struct ucred *cred, struct msqid_kernel *msqkptr, struct label *msqklabel) { return (0); } static int stub_sysvmsq_check_msqrcv(struct ucred *cred, struct msqid_kernel *msqkptr, struct label *msqklabel) { return (0); } static int stub_sysvmsq_check_msqctl(struct ucred *cred, struct msqid_kernel *msqkptr, struct label *msqklabel, int cmd) { return (0); } static void stub_sysvmsq_cleanup(struct label *msqlabel) { } static void stub_sysvmsq_create(struct ucred *cred, struct msqid_kernel *msqkptr, struct label *msqlabel) { } static int stub_sysvsem_check_semctl(struct ucred *cred, struct semid_kernel *semakptr, struct label *semaklabel, int cmd) { return (0); } static int stub_sysvsem_check_semget(struct ucred *cred, struct semid_kernel *semakptr, struct label *semaklabel) { return (0); } static int stub_sysvsem_check_semop(struct ucred *cred, struct semid_kernel *semakptr, struct label *semaklabel, size_t accesstype) { return (0); } static void stub_sysvsem_cleanup(struct label *semalabel) { } static void stub_sysvsem_create(struct ucred *cred, struct semid_kernel *semakptr, struct label *semalabel) { } static int stub_sysvshm_check_shmat(struct ucred *cred, struct shmid_kernel *shmsegptr, struct label *shmseglabel, int shmflg) { return (0); } static int stub_sysvshm_check_shmctl(struct ucred *cred, struct shmid_kernel *shmsegptr, struct label *shmseglabel, int cmd) { return (0); } static int stub_sysvshm_check_shmdt(struct ucred *cred, struct shmid_kernel *shmsegptr, struct label *shmseglabel) { return (0); } static int stub_sysvshm_check_shmget(struct ucred *cred, struct shmid_kernel *shmsegptr, struct label *shmseglabel, int shmflg) { return (0); } static void stub_sysvshm_cleanup(struct label *shmlabel) { } static void stub_sysvshm_create(struct ucred *cred, struct shmid_kernel *shmsegptr, struct label *shmalabel) { } static void stub_thread_userret(struct thread *td) { } static int stub_vnode_associate_extattr(struct mount *mp, struct label *mplabel, struct vnode *vp, struct label *vplabel) { return (0); } static void stub_vnode_associate_singlelabel(struct mount *mp, struct label *mplabel, struct vnode *vp, struct label *vplabel) { } static int stub_vnode_check_deleteacl(struct ucred *cred, struct vnode *vp, struct label *vplabel, acl_type_t type) { return (0); } static int stub_vnode_check_deleteextattr(struct ucred *cred, struct vnode *vp, struct label *vplabel, int attrnamespace, const char *name) { return (0); } static int stub_vnode_check_exec(struct ucred *cred, struct vnode *vp, struct label *vplabel, struct image_params *imgp, struct label *execlabel) { return (0); } static int stub_vnode_check_getacl(struct ucred *cred, struct vnode *vp, struct label *vplabel, acl_type_t type) { return (0); } static int stub_vnode_check_getextattr(struct ucred *cred, struct vnode *vp, struct label *vplabel, int attrnamespace, const char *name, struct uio *uio) { return (0); } static int stub_vnode_check_link(struct ucred *cred, struct vnode *dvp, struct label *dvplabel, struct vnode *vp, struct label *vplabel, struct componentname *cnp) { return (0); } static int stub_vnode_check_listextattr(struct ucred *cred, struct vnode *vp, struct label *vplabel, int attrnamespace) { return (0); } static int stub_vnode_check_lookup(struct ucred *cred, struct vnode *dvp, struct label *dvplabel, struct componentname *cnp) { return (0); } static int stub_vnode_check_mmap(struct ucred *cred, struct vnode *vp, struct label *vplabel, int prot, int flags) { return (0); } static void stub_vnode_check_mmap_downgrade(struct ucred *cred, struct vnode *vp, struct label *vplabel, int *prot) { } static int stub_vnode_check_mprotect(struct ucred *cred, struct vnode *vp, struct label *vplabel, int prot) { return (0); } static int stub_vnode_check_open(struct ucred *cred, struct vnode *vp, struct label *vplabel, int acc_mode) { return (0); } static int stub_vnode_check_poll(struct ucred *active_cred, struct ucred *file_cred, struct vnode *vp, struct label *vplabel) { return (0); } static int stub_vnode_check_read(struct ucred *active_cred, struct ucred *file_cred, struct vnode *vp, struct label *vplabel) { return (0); } static int stub_vnode_check_readdir(struct ucred *cred, struct vnode *vp, struct label *dvplabel) { return (0); } static int stub_vnode_check_readlink(struct ucred *cred, struct vnode *vp, struct label *vplabel) { return (0); } static int stub_vnode_check_relabel(struct ucred *cred, struct vnode *vp, struct label *vplabel, struct label *newlabel) { return (0); } static int stub_vnode_check_rename_from(struct ucred *cred, struct vnode *dvp, struct label *dvplabel, struct vnode *vp, struct label *vplabel, struct componentname *cnp) { return (0); } static int stub_vnode_check_rename_to(struct ucred *cred, struct vnode *dvp, struct label *dvplabel, struct vnode *vp, struct label *vplabel, int samedir, struct componentname *cnp) { return (0); } static int stub_vnode_check_revoke(struct ucred *cred, struct vnode *vp, struct label *vplabel) { return (0); } static int stub_vnode_check_setacl(struct ucred *cred, struct vnode *vp, struct label *vplabel, acl_type_t type, struct acl *acl) { return (0); } static int stub_vnode_check_setextattr(struct ucred *cred, struct vnode *vp, struct label *vplabel, int attrnamespace, const char *name, struct uio *uio) { return (0); } static int stub_vnode_check_setflags(struct ucred *cred, struct vnode *vp, struct label *vplabel, u_long flags) { return (0); } static int stub_vnode_check_setmode(struct ucred *cred, struct vnode *vp, struct label *vplabel, mode_t mode) { return (0); } static int stub_vnode_check_setowner(struct ucred *cred, struct vnode *vp, struct label *vplabel, uid_t uid, gid_t gid) { return (0); } static int stub_vnode_check_setutimes(struct ucred *cred, struct vnode *vp, struct label *vplabel, struct timespec atime, struct timespec mtime) { return (0); } static int stub_vnode_check_stat(struct ucred *active_cred, struct ucred *file_cred, struct vnode *vp, struct label *vplabel) { return (0); } static int stub_vnode_check_unlink(struct ucred *cred, struct vnode *dvp, struct label *dvplabel, struct vnode *vp, struct label *vplabel, struct componentname *cnp) { return (0); } static int stub_vnode_check_write(struct ucred *active_cred, struct ucred *file_cred, struct vnode *vp, struct label *vplabel) { return (0); } static int stub_vnode_create_extattr(struct ucred *cred, struct mount *mp, struct label *mntlabel, struct vnode *dvp, struct label *dvplabel, struct vnode *vp, struct label *vplabel, struct componentname *cnp) { return (0); } static void stub_vnode_execve_transition(struct ucred *old, struct ucred *new, struct vnode *vp, struct label *vplabel, struct label *interpvplabel, struct image_params *imgp, struct label *execlabel) { } static int stub_vnode_execve_will_transition(struct ucred *old, struct vnode *vp, struct label *vplabel, struct label *interpvplabel, struct image_params *imgp, struct label *execlabel) { return (0); } static void stub_vnode_relabel(struct ucred *cred, struct vnode *vp, struct label *vplabel, struct label *label) { } static int stub_vnode_setlabel_extattr(struct ucred *cred, struct vnode *vp, struct label *vplabel, struct label *intlabel) { return (0); } /* * Register functions with MAC Framework policy entry points. */ static struct mac_policy_ops stub_ops = { .mpo_destroy = stub_destroy, .mpo_init = stub_init, .mpo_syscall = stub_syscall, .mpo_bpfdesc_check_receive = stub_bpfdesc_check_receive, .mpo_bpfdesc_create = stub_bpfdesc_create, .mpo_bpfdesc_create_mbuf = stub_bpfdesc_create_mbuf, .mpo_bpfdesc_destroy_label = stub_destroy_label, .mpo_bpfdesc_init_label = stub_init_label, .mpo_cred_check_relabel = stub_cred_check_relabel, .mpo_cred_check_visible = stub_cred_check_visible, .mpo_cred_copy_label = stub_copy_label, .mpo_cred_destroy_label = stub_destroy_label, .mpo_cred_externalize_label = stub_externalize_label, .mpo_cred_init_label = stub_init_label, .mpo_cred_internalize_label = stub_internalize_label, .mpo_cred_relabel= stub_cred_relabel, .mpo_devfs_create_device = stub_devfs_create_device, .mpo_devfs_create_directory = stub_devfs_create_directory, .mpo_devfs_create_symlink = stub_devfs_create_symlink, .mpo_devfs_destroy_label = stub_destroy_label, .mpo_devfs_init_label = stub_init_label, .mpo_devfs_update = stub_devfs_update, .mpo_devfs_vnode_associate = stub_devfs_vnode_associate, .mpo_ifnet_check_relabel = stub_ifnet_check_relabel, .mpo_ifnet_check_transmit = stub_ifnet_check_transmit, .mpo_ifnet_copy_label = stub_copy_label, .mpo_ifnet_create = stub_ifnet_create, .mpo_ifnet_create_mbuf = stub_ifnet_create_mbuf, .mpo_ifnet_destroy_label = stub_destroy_label, .mpo_ifnet_externalize_label = stub_externalize_label, .mpo_ifnet_init_label = stub_init_label, .mpo_ifnet_internalize_label = stub_internalize_label, .mpo_ifnet_relabel = stub_ifnet_relabel, .mpo_inpcb_check_deliver = stub_inpcb_check_deliver, .mpo_inpcb_create = stub_inpcb_create, .mpo_inpcb_create_mbuf = stub_inpcb_create_mbuf, .mpo_inpcb_destroy_label = stub_destroy_label, .mpo_inpcb_init_label = stub_init_label_waitcheck, .mpo_inpcb_sosetlabel = stub_inpcb_sosetlabel, .mpo_ipq_create = stub_ipq_create, .mpo_ipq_destroy_label = stub_destroy_label, .mpo_ipq_init_label = stub_init_label_waitcheck, .mpo_ipq_match = stub_ipq_match, .mpo_ipq_update = stub_ipq_update, .mpo_ipq_reassemble = stub_ipq_reassemble, .mpo_kenv_check_dump = stub_kenv_check_dump, .mpo_kenv_check_get = stub_kenv_check_get, .mpo_kenv_check_set = stub_kenv_check_set, .mpo_kenv_check_unset = stub_kenv_check_unset, .mpo_kld_check_load = stub_kld_check_load, .mpo_kld_check_stat = stub_kld_check_stat, .mpo_mbuf_copy_label = stub_copy_label, .mpo_mbuf_destroy_label = stub_destroy_label, .mpo_mbuf_init_label = stub_init_label_waitcheck, .mpo_mount_check_stat = stub_mount_check_stat, .mpo_mount_create = stub_mount_create, .mpo_mount_destroy_label = stub_destroy_label, .mpo_mount_init_label = stub_init_label, .mpo_netatalk_aarp_send = stub_netatalk_aarp_send, .mpo_netinet_arp_send = stub_netinet_arp_send, .mpo_netinet_firewall_reply = stub_netinet_firewall_reply, .mpo_netinet_firewall_send = stub_netinet_firewall_send, .mpo_netinet_fragment = stub_netinet_fragment, .mpo_netinet_icmp_reply = stub_netinet_icmp_reply, .mpo_netinet_icmp_replyinplace = stub_netinet_icmp_replyinplace, .mpo_netinet_tcp_reply = stub_netinet_tcp_reply, .mpo_netinet_igmp_send = stub_netinet_igmp_send, .mpo_netinet6_nd6_send = stub_netinet6_nd6_send, .mpo_pipe_check_ioctl = stub_pipe_check_ioctl, .mpo_pipe_check_poll = stub_pipe_check_poll, .mpo_pipe_check_read = stub_pipe_check_read, .mpo_pipe_check_relabel = stub_pipe_check_relabel, .mpo_pipe_check_stat = stub_pipe_check_stat, .mpo_pipe_check_write = stub_pipe_check_write, .mpo_pipe_copy_label = stub_copy_label, .mpo_pipe_create = stub_pipe_create, .mpo_pipe_destroy_label = stub_destroy_label, .mpo_pipe_externalize_label = stub_externalize_label, .mpo_pipe_init_label = stub_init_label, .mpo_pipe_internalize_label = stub_internalize_label, .mpo_pipe_relabel = stub_pipe_relabel, - .mpo_posixsem_check_destroy = stub_posixsem_check_destroy, .mpo_posixsem_check_getvalue = stub_posixsem_check_getvalue, .mpo_posixsem_check_open = stub_posixsem_check_open, .mpo_posixsem_check_post = stub_posixsem_check_post, .mpo_posixsem_check_unlink = stub_posixsem_check_unlink, .mpo_posixsem_check_wait = stub_posixsem_check_wait, .mpo_posixsem_create = stub_posixsem_create, .mpo_posixsem_destroy_label = stub_destroy_label, .mpo_posixsem_init_label = stub_init_label, .mpo_posixshm_check_mmap = stub_posixshm_check_mmap, .mpo_posixshm_check_open = stub_posixshm_check_open, .mpo_posixshm_check_stat = stub_posixshm_check_stat, .mpo_posixshm_check_truncate = stub_posixshm_check_truncate, .mpo_posixshm_check_unlink = stub_posixshm_check_unlink, .mpo_posixshm_create = stub_posixshm_create, .mpo_posixshm_destroy_label = stub_destroy_label, .mpo_posixshm_init_label = stub_init_label, .mpo_priv_check = stub_priv_check, .mpo_priv_grant = stub_priv_grant, .mpo_proc_associate_nfsd = stub_proc_associate_nfsd, .mpo_proc_check_debug = stub_proc_check_debug, .mpo_proc_check_sched = stub_proc_check_sched, .mpo_proc_check_setaudit = stub_proc_check_setaudit, .mpo_proc_check_setaudit_addr = stub_proc_check_setaudit_addr, .mpo_proc_check_setauid = stub_proc_check_setauid, .mpo_proc_check_setegid = stub_proc_check_setegid, .mpo_proc_check_seteuid = stub_proc_check_seteuid, .mpo_proc_check_setgid = stub_proc_check_setgid, .mpo_proc_check_setgroups = stub_proc_check_setgroups, .mpo_proc_check_setregid = stub_proc_check_setregid, .mpo_proc_check_setresgid = stub_proc_check_setresgid, .mpo_proc_check_setresuid = stub_proc_check_setresuid, .mpo_proc_check_setreuid = stub_proc_check_setreuid, .mpo_proc_check_setuid = stub_proc_check_setuid, .mpo_proc_check_signal = stub_proc_check_signal, .mpo_proc_check_wait = stub_proc_check_wait, .mpo_proc_create_init = stub_proc_create_init, .mpo_proc_create_swapper = stub_proc_create_swapper, .mpo_socket_check_accept = stub_socket_check_accept, .mpo_socket_check_bind = stub_socket_check_bind, .mpo_socket_check_connect = stub_socket_check_connect, .mpo_socket_check_create = stub_socket_check_create, .mpo_socket_check_deliver = stub_socket_check_deliver, .mpo_socket_check_listen = stub_socket_check_listen, .mpo_socket_check_poll = stub_socket_check_poll, .mpo_socket_check_receive = stub_socket_check_receive, .mpo_socket_check_relabel = stub_socket_check_relabel, .mpo_socket_check_send = stub_socket_check_send, .mpo_socket_check_stat = stub_socket_check_stat, .mpo_socket_check_visible = stub_socket_check_visible, .mpo_socket_copy_label = stub_copy_label, .mpo_socket_create = stub_socket_create, .mpo_socket_create_mbuf = stub_socket_create_mbuf, .mpo_socket_destroy_label = stub_destroy_label, .mpo_socket_externalize_label = stub_externalize_label, .mpo_socket_init_label = stub_init_label_waitcheck, .mpo_socket_internalize_label = stub_internalize_label, .mpo_socket_newconn = stub_socket_newconn, .mpo_socket_relabel = stub_socket_relabel, .mpo_socketpeer_destroy_label = stub_destroy_label, .mpo_socketpeer_externalize_label = stub_externalize_label, .mpo_socketpeer_init_label = stub_init_label_waitcheck, .mpo_socketpeer_set_from_mbuf = stub_socketpeer_set_from_mbuf, .mpo_socketpeer_set_from_socket = stub_socketpeer_set_from_socket, .mpo_syncache_init_label = stub_init_label_waitcheck, .mpo_syncache_destroy_label = stub_destroy_label, .mpo_syncache_create = stub_syncache_create, .mpo_syncache_create_mbuf= stub_syncache_create_mbuf, .mpo_sysvmsg_cleanup = stub_sysvmsg_cleanup, .mpo_sysvmsg_create = stub_sysvmsg_create, .mpo_sysvmsg_destroy_label = stub_destroy_label, .mpo_sysvmsg_init_label = stub_init_label, .mpo_sysvmsq_check_msgmsq = stub_sysvmsq_check_msgmsq, .mpo_sysvmsq_check_msgrcv = stub_sysvmsq_check_msgrcv, .mpo_sysvmsq_check_msgrmid = stub_sysvmsq_check_msgrmid, .mpo_sysvmsq_check_msqget = stub_sysvmsq_check_msqget, .mpo_sysvmsq_check_msqsnd = stub_sysvmsq_check_msqsnd, .mpo_sysvmsq_check_msqrcv = stub_sysvmsq_check_msqrcv, .mpo_sysvmsq_check_msqctl = stub_sysvmsq_check_msqctl, .mpo_sysvmsq_cleanup = stub_sysvmsq_cleanup, .mpo_sysvmsq_create = stub_sysvmsq_create, .mpo_sysvmsq_destroy_label = stub_destroy_label, .mpo_sysvmsq_init_label = stub_init_label, .mpo_sysvsem_check_semctl = stub_sysvsem_check_semctl, .mpo_sysvsem_check_semget = stub_sysvsem_check_semget, .mpo_sysvsem_check_semop = stub_sysvsem_check_semop, .mpo_sysvsem_cleanup = stub_sysvsem_cleanup, .mpo_sysvsem_create = stub_sysvsem_create, .mpo_sysvsem_destroy_label = stub_destroy_label, .mpo_sysvsem_init_label = stub_init_label, .mpo_sysvshm_check_shmat = stub_sysvshm_check_shmat, .mpo_sysvshm_check_shmctl = stub_sysvshm_check_shmctl, .mpo_sysvshm_check_shmdt = stub_sysvshm_check_shmdt, .mpo_sysvshm_check_shmget = stub_sysvshm_check_shmget, .mpo_sysvshm_cleanup = stub_sysvshm_cleanup, .mpo_sysvshm_create = stub_sysvshm_create, .mpo_sysvshm_destroy_label = stub_destroy_label, .mpo_sysvshm_init_label = stub_init_label, .mpo_system_check_acct = stub_system_check_acct, .mpo_system_check_audit = stub_system_check_audit, .mpo_system_check_auditctl = stub_system_check_auditctl, .mpo_system_check_auditon = stub_system_check_auditon, .mpo_system_check_reboot = stub_system_check_reboot, .mpo_system_check_swapoff = stub_system_check_swapoff, .mpo_system_check_swapon = stub_system_check_swapon, .mpo_system_check_sysctl = stub_system_check_sysctl, .mpo_thread_userret = stub_thread_userret, .mpo_vnode_associate_extattr = stub_vnode_associate_extattr, .mpo_vnode_associate_singlelabel = stub_vnode_associate_singlelabel, .mpo_vnode_check_access = stub_vnode_check_access, .mpo_vnode_check_chdir = stub_vnode_check_chdir, .mpo_vnode_check_chroot = stub_vnode_check_chroot, .mpo_vnode_check_create = stub_vnode_check_create, .mpo_vnode_check_deleteacl = stub_vnode_check_deleteacl, .mpo_vnode_check_deleteextattr = stub_vnode_check_deleteextattr, .mpo_vnode_check_exec = stub_vnode_check_exec, .mpo_vnode_check_getacl = stub_vnode_check_getacl, .mpo_vnode_check_getextattr = stub_vnode_check_getextattr, .mpo_vnode_check_link = stub_vnode_check_link, .mpo_vnode_check_listextattr = stub_vnode_check_listextattr, .mpo_vnode_check_lookup = stub_vnode_check_lookup, .mpo_vnode_check_mmap = stub_vnode_check_mmap, .mpo_vnode_check_mmap_downgrade = stub_vnode_check_mmap_downgrade, .mpo_vnode_check_mprotect = stub_vnode_check_mprotect, .mpo_vnode_check_open = stub_vnode_check_open, .mpo_vnode_check_poll = stub_vnode_check_poll, .mpo_vnode_check_read = stub_vnode_check_read, .mpo_vnode_check_readdir = stub_vnode_check_readdir, .mpo_vnode_check_readlink = stub_vnode_check_readlink, .mpo_vnode_check_relabel = stub_vnode_check_relabel, .mpo_vnode_check_rename_from = stub_vnode_check_rename_from, .mpo_vnode_check_rename_to = stub_vnode_check_rename_to, .mpo_vnode_check_revoke = stub_vnode_check_revoke, .mpo_vnode_check_setacl = stub_vnode_check_setacl, .mpo_vnode_check_setextattr = stub_vnode_check_setextattr, .mpo_vnode_check_setflags = stub_vnode_check_setflags, .mpo_vnode_check_setmode = stub_vnode_check_setmode, .mpo_vnode_check_setowner = stub_vnode_check_setowner, .mpo_vnode_check_setutimes = stub_vnode_check_setutimes, .mpo_vnode_check_stat = stub_vnode_check_stat, .mpo_vnode_check_unlink = stub_vnode_check_unlink, .mpo_vnode_check_write = stub_vnode_check_write, .mpo_vnode_copy_label = stub_copy_label, .mpo_vnode_create_extattr = stub_vnode_create_extattr, .mpo_vnode_destroy_label = stub_destroy_label, .mpo_vnode_execve_transition = stub_vnode_execve_transition, .mpo_vnode_execve_will_transition = stub_vnode_execve_will_transition, .mpo_vnode_externalize_label = stub_externalize_label, .mpo_vnode_init_label = stub_init_label, .mpo_vnode_internalize_label = stub_internalize_label, .mpo_vnode_relabel = stub_vnode_relabel, .mpo_vnode_setlabel_extattr = stub_vnode_setlabel_extattr, }; MAC_POLICY_SET(&stub_ops, mac_stub, "TrustedBSD MAC/Stub", MPC_LOADTIME_FLAG_UNLOADOK, NULL); Index: head/sys/security/mac_test/mac_test.c =================================================================== --- head/sys/security/mac_test/mac_test.c (revision 179962) +++ head/sys/security/mac_test/mac_test.c (revision 179963) @@ -1,3042 +1,3028 @@ /*- * Copyright (c) 1999-2002, 2007 Robert N. M. Watson * Copyright (c) 2001-2005 McAfee, Inc. * Copyright (c) 2006 SPARTA, Inc. * All rights reserved. * * This software was developed by Robert Watson for the TrustedBSD Project. * * This software was developed for the FreeBSD Project in part by McAfee * Research, the Security Research Division of McAfee, Inc. under * DARPA/SPAWAR contract N66001-01-C-8035 ("CBOSS"), as part of the DARPA * CHATS research program. * * This software was enhanced by SPARTA ISSO under SPAWAR contract * N66001-04-C-6019 ("SEFOS"). * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * $FreeBSD$ */ /* * Developed by the TrustedBSD Project. * * MAC Test policy - tests MAC Framework labeling by assigning object class * magic numbers to each label and validates that each time an object label * is passed into the policy, it has a consistent object type, catching * incorrectly passed labels, labels passed after free, etc. */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include SYSCTL_DECL(_security_mac); SYSCTL_NODE(_security_mac, OID_AUTO, test, CTLFLAG_RW, 0, "TrustedBSD mac_test policy controls"); #define MAGIC_BPF 0xfe1ad1b6 #define MAGIC_DEVFS 0x9ee79c32 #define MAGIC_IFNET 0xc218b120 #define MAGIC_INPCB 0x4440f7bb #define MAGIC_IPQ 0x206188ef #define MAGIC_MBUF 0xbbefa5bb #define MAGIC_MOUNT 0xc7c46e47 #define MAGIC_SOCKET 0x9199c6cd #define MAGIC_SYNCACHE 0x7fb838a8 #define MAGIC_SYSV_MSG 0x8bbba61e #define MAGIC_SYSV_MSQ 0xea672391 #define MAGIC_SYSV_SEM 0x896e8a0b #define MAGIC_SYSV_SHM 0x76119ab0 #define MAGIC_PIPE 0xdc6c9919 #define MAGIC_POSIX_SEM 0x78ae980c #define MAGIC_POSIX_SHM 0x4e853fc9 #define MAGIC_PROC 0x3b4be98f #define MAGIC_CRED 0x9a5a4987 #define MAGIC_VNODE 0x1a67a45c #define MAGIC_FREE 0x849ba1fd #define SLOT(x) mac_label_get((x), test_slot) #define SLOT_SET(x, v) mac_label_set((x), test_slot, (v)) static int test_slot; SYSCTL_INT(_security_mac_test, OID_AUTO, slot, CTLFLAG_RD, &test_slot, 0, "Slot allocated by framework"); SYSCTL_NODE(_security_mac_test, OID_AUTO, counter, CTLFLAG_RW, 0, "TrustedBSD mac_test counters controls"); #define COUNTER_DECL(variable) \ static int counter_##variable; \ SYSCTL_INT(_security_mac_test_counter, OID_AUTO, variable, \ CTLFLAG_RD, &counter_##variable, 0, #variable) #define COUNTER_INC(variable) atomic_add_int(&counter_##variable, 1) #ifdef KDB #define DEBUGGER(func, string) kdb_enter(KDB_WHY_MAC, (string)) #else #define DEBUGGER(func, string) printf("mac_test: %s: %s\n", (func), (string)) #endif #define LABEL_CHECK(label, magic) do { \ if (label != NULL) { \ KASSERT(SLOT(label) == magic || SLOT(label) == 0, \ ("%s: bad %s label", __func__, #magic)); \ } \ } while (0) #define LABEL_DESTROY(label, magic) do { \ if (SLOT(label) == magic || SLOT(label) == 0) { \ SLOT_SET(label, MAGIC_FREE); \ } else if (SLOT(label) == MAGIC_FREE) { \ DEBUGGER("%s: dup destroy", __func__); \ } else { \ DEBUGGER("%s: corrupted label", __func__); \ } \ } while (0) #define LABEL_INIT(label, magic) do { \ SLOT_SET(label, magic); \ } while (0) #define LABEL_NOTFREE(label) do { \ KASSERT(SLOT(label) != MAGIC_FREE, \ ("%s: destroyed label", __func__)); \ } while (0) /* * Object-specific entry point implementations are sorted alphabetically by * object type name and then by operation. */ COUNTER_DECL(bpfdesc_check_receive); static int test_bpfdesc_check_receive(struct bpf_d *d, struct label *dlabel, struct ifnet *ifp, struct label *ifplabel) { LABEL_CHECK(dlabel, MAGIC_BPF); LABEL_CHECK(ifplabel, MAGIC_IFNET); COUNTER_INC(bpfdesc_check_receive); return (0); } COUNTER_DECL(bpfdesc_create); static void test_bpfdesc_create(struct ucred *cred, struct bpf_d *d, struct label *dlabel) { LABEL_CHECK(cred->cr_label, MAGIC_CRED); LABEL_CHECK(dlabel, MAGIC_BPF); COUNTER_INC(bpfdesc_create); } COUNTER_DECL(bpfdesc_create_mbuf); static void test_bpfdesc_create_mbuf(struct bpf_d *d, struct label *dlabel, struct mbuf *m, struct label *mlabel) { LABEL_CHECK(dlabel, MAGIC_BPF); LABEL_CHECK(mlabel, MAGIC_MBUF); COUNTER_INC(bpfdesc_create_mbuf); } COUNTER_DECL(bpfdesc_destroy_label); static void test_bpfdesc_destroy_label(struct label *label) { LABEL_DESTROY(label, MAGIC_BPF); COUNTER_INC(bpfdesc_destroy_label); } COUNTER_DECL(bpfdesc_init_label); static void test_bpfdesc_init_label(struct label *label) { LABEL_INIT(label, MAGIC_BPF); COUNTER_INC(bpfdesc_init_label); } COUNTER_DECL(cred_check_relabel); static int test_cred_check_relabel(struct ucred *cred, struct label *newlabel) { LABEL_CHECK(cred->cr_label, MAGIC_CRED); LABEL_CHECK(newlabel, MAGIC_CRED); COUNTER_INC(cred_check_relabel); return (0); } COUNTER_DECL(cred_check_visible); static int test_cred_check_visible(struct ucred *u1, struct ucred *u2) { LABEL_CHECK(u1->cr_label, MAGIC_CRED); LABEL_CHECK(u2->cr_label, MAGIC_CRED); COUNTER_INC(cred_check_visible); return (0); } COUNTER_DECL(cred_copy_label); static void test_cred_copy_label(struct label *src, struct label *dest) { LABEL_CHECK(src, MAGIC_CRED); LABEL_CHECK(dest, MAGIC_CRED); COUNTER_INC(cred_copy_label); } COUNTER_DECL(cred_destroy_label); static void test_cred_destroy_label(struct label *label) { LABEL_DESTROY(label, MAGIC_CRED); COUNTER_INC(cred_destroy_label); } COUNTER_DECL(cred_externalize_label); static int test_cred_externalize_label(struct label *label, char *element_name, struct sbuf *sb, int *claimed) { LABEL_CHECK(label, MAGIC_CRED); COUNTER_INC(cred_externalize_label); return (0); } COUNTER_DECL(cred_init_label); static void test_cred_init_label(struct label *label) { LABEL_INIT(label, MAGIC_CRED); COUNTER_INC(cred_init_label); } COUNTER_DECL(cred_internalize_label); static int test_cred_internalize_label(struct label *label, char *element_name, char *element_data, int *claimed) { LABEL_CHECK(label, MAGIC_CRED); COUNTER_INC(cred_internalize_label); return (0); } COUNTER_DECL(cred_relabel); static void test_cred_relabel(struct ucred *cred, struct label *newlabel) { LABEL_CHECK(cred->cr_label, MAGIC_CRED); LABEL_CHECK(newlabel, MAGIC_CRED); COUNTER_INC(cred_relabel); } COUNTER_DECL(devfs_create_device); static void test_devfs_create_device(struct ucred *cred, struct mount *mp, struct cdev *dev, struct devfs_dirent *de, struct label *delabel) { if (cred != NULL) LABEL_CHECK(cred->cr_label, MAGIC_CRED); LABEL_CHECK(delabel, MAGIC_DEVFS); COUNTER_INC(devfs_create_device); } COUNTER_DECL(devfs_create_directory); static void test_devfs_create_directory(struct mount *mp, char *dirname, int dirnamelen, struct devfs_dirent *de, struct label *delabel) { LABEL_CHECK(delabel, MAGIC_DEVFS); COUNTER_INC(devfs_create_directory); } COUNTER_DECL(devfs_create_symlink); static void test_devfs_create_symlink(struct ucred *cred, struct mount *mp, struct devfs_dirent *dd, struct label *ddlabel, struct devfs_dirent *de, struct label *delabel) { LABEL_CHECK(cred->cr_label, MAGIC_CRED); LABEL_CHECK(ddlabel, MAGIC_DEVFS); LABEL_CHECK(delabel, MAGIC_DEVFS); COUNTER_INC(devfs_create_symlink); } COUNTER_DECL(devfs_destroy_label); static void test_devfs_destroy_label(struct label *label) { LABEL_DESTROY(label, MAGIC_DEVFS); COUNTER_INC(devfs_destroy_label); } COUNTER_DECL(devfs_init_label); static void test_devfs_init_label(struct label *label) { LABEL_INIT(label, MAGIC_DEVFS); COUNTER_INC(devfs_init_label); } COUNTER_DECL(devfs_update); static void test_devfs_update(struct mount *mp, struct devfs_dirent *devfs_dirent, struct label *direntlabel, struct vnode *vp, struct label *vplabel) { LABEL_CHECK(direntlabel, MAGIC_DEVFS); LABEL_CHECK(vplabel, MAGIC_VNODE); COUNTER_INC(devfs_update); } COUNTER_DECL(devfs_vnode_associate); static void test_devfs_vnode_associate(struct mount *mp, struct label *mplabel, struct devfs_dirent *de, struct label *delabel, struct vnode *vp, struct label *vplabel) { LABEL_CHECK(mplabel, MAGIC_MOUNT); LABEL_CHECK(delabel, MAGIC_DEVFS); LABEL_CHECK(vplabel, MAGIC_VNODE); COUNTER_INC(devfs_vnode_associate); } COUNTER_DECL(ifnet_check_relabel); static int test_ifnet_check_relabel(struct ucred *cred, struct ifnet *ifp, struct label *ifplabel, struct label *newlabel) { LABEL_CHECK(cred->cr_label, MAGIC_CRED); LABEL_CHECK(ifplabel, MAGIC_IFNET); LABEL_CHECK(newlabel, MAGIC_IFNET); COUNTER_INC(ifnet_check_relabel); return (0); } COUNTER_DECL(ifnet_check_transmit); static int test_ifnet_check_transmit(struct ifnet *ifp, struct label *ifplabel, struct mbuf *m, struct label *mlabel) { LABEL_CHECK(ifplabel, MAGIC_IFNET); LABEL_CHECK(mlabel, MAGIC_MBUF); COUNTER_INC(ifnet_check_transmit); return (0); } COUNTER_DECL(ifnet_copy_label); static void test_ifnet_copy_label(struct label *src, struct label *dest) { LABEL_CHECK(src, MAGIC_IFNET); LABEL_CHECK(dest, MAGIC_IFNET); COUNTER_INC(ifnet_copy_label); } COUNTER_DECL(ifnet_create); static void test_ifnet_create(struct ifnet *ifp, struct label *ifplabel) { LABEL_CHECK(ifplabel, MAGIC_IFNET); COUNTER_INC(ifnet_create); } COUNTER_DECL(ifnet_create_mbuf); static void test_ifnet_create_mbuf(struct ifnet *ifp, struct label *ifplabel, struct mbuf *m, struct label *mlabel) { LABEL_CHECK(ifplabel, MAGIC_IFNET); LABEL_CHECK(mlabel, MAGIC_MBUF); COUNTER_INC(ifnet_create_mbuf); } COUNTER_DECL(ifnet_destroy_label); static void test_ifnet_destroy_label(struct label *label) { LABEL_DESTROY(label, MAGIC_IFNET); COUNTER_INC(ifnet_destroy_label); } COUNTER_DECL(ifnet_externalize_label); static int test_ifnet_externalize_label(struct label *label, char *element_name, struct sbuf *sb, int *claimed) { LABEL_CHECK(label, MAGIC_IFNET); COUNTER_INC(ifnet_externalize_label); return (0); } COUNTER_DECL(ifnet_init_label); static void test_ifnet_init_label(struct label *label) { LABEL_INIT(label, MAGIC_IFNET); COUNTER_INC(ifnet_init_label); } COUNTER_DECL(ifnet_internalize_label); static int test_ifnet_internalize_label(struct label *label, char *element_name, char *element_data, int *claimed) { LABEL_CHECK(label, MAGIC_IFNET); COUNTER_INC(ifnet_internalize_label); return (0); } COUNTER_DECL(ifnet_relabel); static void test_ifnet_relabel(struct ucred *cred, struct ifnet *ifp, struct label *ifplabel, struct label *newlabel) { LABEL_CHECK(cred->cr_label, MAGIC_CRED); LABEL_CHECK(ifplabel, MAGIC_IFNET); LABEL_CHECK(newlabel, MAGIC_IFNET); COUNTER_INC(ifnet_relabel); } COUNTER_DECL(inpcb_check_deliver); static int test_inpcb_check_deliver(struct inpcb *inp, struct label *inplabel, struct mbuf *m, struct label *mlabel) { LABEL_CHECK(inplabel, MAGIC_INPCB); LABEL_CHECK(mlabel, MAGIC_MBUF); COUNTER_INC(inpcb_check_deliver); return (0); } COUNTER_DECL(inpcb_create); static void test_inpcb_create(struct socket *so, struct label *solabel, struct inpcb *inp, struct label *inplabel) { LABEL_CHECK(solabel, MAGIC_SOCKET); LABEL_CHECK(inplabel, MAGIC_INPCB); COUNTER_INC(inpcb_create); } COUNTER_DECL(inpcb_create_mbuf); static void test_inpcb_create_mbuf(struct inpcb *inp, struct label *inplabel, struct mbuf *m, struct label *mlabel) { LABEL_CHECK(inplabel, MAGIC_INPCB); LABEL_CHECK(mlabel, MAGIC_MBUF); COUNTER_INC(inpcb_create_mbuf); } COUNTER_DECL(inpcb_destroy_label); static void test_inpcb_destroy_label(struct label *label) { LABEL_DESTROY(label, MAGIC_INPCB); COUNTER_INC(inpcb_destroy_label); } COUNTER_DECL(inpcb_init_label); static int test_inpcb_init_label(struct label *label, int flag) { if (flag & M_WAITOK) WITNESS_WARN(WARN_GIANTOK | WARN_SLEEPOK, NULL, "test_inpcb_init_label() at %s:%d", __FILE__, __LINE__); LABEL_INIT(label, MAGIC_INPCB); COUNTER_INC(inpcb_init_label); return (0); } COUNTER_DECL(inpcb_sosetlabel); static void test_inpcb_sosetlabel(struct socket *so, struct label *solabel, struct inpcb *inp, struct label *inplabel) { LABEL_CHECK(solabel, MAGIC_SOCKET); LABEL_CHECK(inplabel, MAGIC_INPCB); COUNTER_INC(inpcb_sosetlabel); } COUNTER_DECL(ipq_create); static void test_ipq_create(struct mbuf *fragment, struct label *fragmentlabel, struct ipq *q, struct label *qlabel) { LABEL_CHECK(fragmentlabel, MAGIC_MBUF); LABEL_CHECK(qlabel, MAGIC_IPQ); COUNTER_INC(ipq_create); } COUNTER_DECL(ipq_destroy_label); static void test_ipq_destroy_label(struct label *label) { LABEL_DESTROY(label, MAGIC_IPQ); COUNTER_INC(ipq_destroy_label); } COUNTER_DECL(ipq_init_label); static int test_ipq_init_label(struct label *label, int flag) { if (flag & M_WAITOK) WITNESS_WARN(WARN_GIANTOK | WARN_SLEEPOK, NULL, "test_ipq_init_label() at %s:%d", __FILE__, __LINE__); LABEL_INIT(label, MAGIC_IPQ); COUNTER_INC(ipq_init_label); return (0); } COUNTER_DECL(ipq_match); static int test_ipq_match(struct mbuf *fragment, struct label *fragmentlabel, struct ipq *q, struct label *qlabel) { LABEL_CHECK(fragmentlabel, MAGIC_MBUF); LABEL_CHECK(qlabel, MAGIC_IPQ); COUNTER_INC(ipq_match); return (1); } COUNTER_DECL(ipq_reassemble); static void test_ipq_reassemble(struct ipq *q, struct label *qlabel, struct mbuf *m, struct label *mlabel) { LABEL_CHECK(qlabel, MAGIC_IPQ); LABEL_CHECK(mlabel, MAGIC_MBUF); COUNTER_INC(ipq_reassemble); } COUNTER_DECL(ipq_update); static void test_ipq_update(struct mbuf *m, struct label *mlabel, struct ipq *q, struct label *qlabel) { LABEL_CHECK(mlabel, MAGIC_MBUF); LABEL_CHECK(qlabel, MAGIC_IPQ); COUNTER_INC(ipq_update); } COUNTER_DECL(kenv_check_dump); static int test_kenv_check_dump(struct ucred *cred) { LABEL_CHECK(cred->cr_label, MAGIC_CRED); COUNTER_INC(kenv_check_dump); return (0); } COUNTER_DECL(kenv_check_get); static int test_kenv_check_get(struct ucred *cred, char *name) { LABEL_CHECK(cred->cr_label, MAGIC_CRED); COUNTER_INC(kenv_check_get); return (0); } COUNTER_DECL(kenv_check_set); static int test_kenv_check_set(struct ucred *cred, char *name, char *value) { LABEL_CHECK(cred->cr_label, MAGIC_CRED); COUNTER_INC(kenv_check_set); return (0); } COUNTER_DECL(kenv_check_unset); static int test_kenv_check_unset(struct ucred *cred, char *name) { LABEL_CHECK(cred->cr_label, MAGIC_CRED); COUNTER_INC(kenv_check_unset); return (0); } COUNTER_DECL(kld_check_load); static int test_kld_check_load(struct ucred *cred, struct vnode *vp, struct label *label) { LABEL_CHECK(cred->cr_label, MAGIC_CRED); LABEL_CHECK(label, MAGIC_VNODE); COUNTER_INC(kld_check_load); return (0); } COUNTER_DECL(kld_check_stat); static int test_kld_check_stat(struct ucred *cred) { LABEL_CHECK(cred->cr_label, MAGIC_CRED); COUNTER_INC(kld_check_stat); return (0); } COUNTER_DECL(mbuf_copy_label); static void test_mbuf_copy_label(struct label *src, struct label *dest) { LABEL_CHECK(src, MAGIC_MBUF); LABEL_CHECK(dest, MAGIC_MBUF); COUNTER_INC(mbuf_copy_label); } COUNTER_DECL(mbuf_destroy_label); static void test_mbuf_destroy_label(struct label *label) { /* * If we're loaded dynamically, there may be mbufs in flight that * didn't have label storage allocated for them. Handle this * gracefully. */ if (label == NULL) return; LABEL_DESTROY(label, MAGIC_MBUF); COUNTER_INC(mbuf_destroy_label); } COUNTER_DECL(mbuf_init_label); static int test_mbuf_init_label(struct label *label, int flag) { if (flag & M_WAITOK) WITNESS_WARN(WARN_GIANTOK | WARN_SLEEPOK, NULL, "test_mbuf_init_label() at %s:%d", __FILE__, __LINE__); LABEL_INIT(label, MAGIC_MBUF); COUNTER_INC(mbuf_init_label); return (0); } COUNTER_DECL(mount_check_stat); static int test_mount_check_stat(struct ucred *cred, struct mount *mp, struct label *mplabel) { LABEL_CHECK(cred->cr_label, MAGIC_CRED); LABEL_CHECK(mplabel, MAGIC_MOUNT); COUNTER_INC(mount_check_stat); return (0); } COUNTER_DECL(mount_create); static void test_mount_create(struct ucred *cred, struct mount *mp, struct label *mplabel) { LABEL_CHECK(cred->cr_label, MAGIC_CRED); LABEL_CHECK(mplabel, MAGIC_MOUNT); COUNTER_INC(mount_create); } COUNTER_DECL(mount_destroy_label); static void test_mount_destroy_label(struct label *label) { LABEL_DESTROY(label, MAGIC_MOUNT); COUNTER_INC(mount_destroy_label); } COUNTER_DECL(mount_init_label); static void test_mount_init_label(struct label *label) { LABEL_INIT(label, MAGIC_MOUNT); COUNTER_INC(mount_init_label); } COUNTER_DECL(netatalk_aarp_send); static void test_netatalk_aarp_send(struct ifnet *ifp, struct label *ifplabel, struct mbuf *m, struct label *mlabel) { LABEL_CHECK(ifplabel, MAGIC_IFNET); LABEL_CHECK(mlabel, MAGIC_MBUF); COUNTER_INC(netatalk_aarp_send); } COUNTER_DECL(netinet_arp_send); static void test_netinet_arp_send(struct ifnet *ifp, struct label *ifplabel, struct mbuf *m, struct label *mlabel) { LABEL_CHECK(ifplabel, MAGIC_IFNET); LABEL_CHECK(mlabel, MAGIC_MBUF); COUNTER_INC(netinet_arp_send); } COUNTER_DECL(netinet_fragment); static void test_netinet_fragment(struct mbuf *m, struct label *mlabel, struct mbuf *frag, struct label *fraglabel) { LABEL_CHECK(mlabel, MAGIC_MBUF); LABEL_CHECK(fraglabel, MAGIC_MBUF); COUNTER_INC(netinet_fragment); } COUNTER_DECL(netinet_icmp_reply); static void test_netinet_icmp_reply(struct mbuf *mrecv, struct label *mrecvlabel, struct mbuf *msend, struct label *msendlabel) { LABEL_CHECK(mrecvlabel, MAGIC_MBUF); LABEL_CHECK(msendlabel, MAGIC_MBUF); COUNTER_INC(netinet_icmp_reply); } COUNTER_DECL(netinet_icmp_replyinplace); static void test_netinet_icmp_replyinplace(struct mbuf *m, struct label *mlabel) { LABEL_CHECK(mlabel, MAGIC_MBUF); COUNTER_INC(netinet_icmp_replyinplace); } COUNTER_DECL(netinet_igmp_send); static void test_netinet_igmp_send(struct ifnet *ifp, struct label *ifplabel, struct mbuf *m, struct label *mlabel) { LABEL_CHECK(ifplabel, MAGIC_IFNET); LABEL_CHECK(mlabel, MAGIC_MBUF); COUNTER_INC(netinet_igmp_send); } COUNTER_DECL(netinet_tcp_reply); static void test_netinet_tcp_reply(struct mbuf *m, struct label *mlabel) { LABEL_CHECK(mlabel, MAGIC_MBUF); COUNTER_INC(netinet_tcp_reply); } COUNTER_DECL(netinet6_nd6_send); static void test_netinet6_nd6_send(struct ifnet *ifp, struct label *ifplabel, struct mbuf *m, struct label *mlabel) { LABEL_CHECK(ifplabel, MAGIC_IFNET); LABEL_CHECK(mlabel, MAGIC_MBUF); COUNTER_INC(netinet6_nd6_send); } COUNTER_DECL(pipe_check_ioctl); static int test_pipe_check_ioctl(struct ucred *cred, struct pipepair *pp, struct label *pplabel, unsigned long cmd, void /* caddr_t */ *data) { LABEL_CHECK(cred->cr_label, MAGIC_CRED); LABEL_CHECK(pplabel, MAGIC_PIPE); COUNTER_INC(pipe_check_ioctl); return (0); } COUNTER_DECL(pipe_check_poll); static int test_pipe_check_poll(struct ucred *cred, struct pipepair *pp, struct label *pplabel) { LABEL_CHECK(cred->cr_label, MAGIC_CRED); LABEL_CHECK(pplabel, MAGIC_PIPE); COUNTER_INC(pipe_check_poll); return (0); } COUNTER_DECL(pipe_check_read); static int test_pipe_check_read(struct ucred *cred, struct pipepair *pp, struct label *pplabel) { LABEL_CHECK(cred->cr_label, MAGIC_CRED); LABEL_CHECK(pplabel, MAGIC_PIPE); COUNTER_INC(pipe_check_read); return (0); } COUNTER_DECL(pipe_check_relabel); static int test_pipe_check_relabel(struct ucred *cred, struct pipepair *pp, struct label *pplabel, struct label *newlabel) { LABEL_CHECK(cred->cr_label, MAGIC_CRED); LABEL_CHECK(pplabel, MAGIC_PIPE); LABEL_CHECK(newlabel, MAGIC_PIPE); COUNTER_INC(pipe_check_relabel); return (0); } COUNTER_DECL(pipe_check_stat); static int test_pipe_check_stat(struct ucred *cred, struct pipepair *pp, struct label *pplabel) { LABEL_CHECK(cred->cr_label, MAGIC_CRED); LABEL_CHECK(pplabel, MAGIC_PIPE); COUNTER_INC(pipe_check_stat); return (0); } COUNTER_DECL(pipe_check_write); static int test_pipe_check_write(struct ucred *cred, struct pipepair *pp, struct label *pplabel) { LABEL_CHECK(cred->cr_label, MAGIC_CRED); LABEL_CHECK(pplabel, MAGIC_PIPE); COUNTER_INC(pipe_check_write); return (0); } COUNTER_DECL(pipe_copy_label); static void test_pipe_copy_label(struct label *src, struct label *dest) { LABEL_CHECK(src, MAGIC_PIPE); LABEL_CHECK(dest, MAGIC_PIPE); COUNTER_INC(pipe_copy_label); } COUNTER_DECL(pipe_create); static void test_pipe_create(struct ucred *cred, struct pipepair *pp, struct label *pplabel) { LABEL_CHECK(cred->cr_label, MAGIC_CRED); LABEL_CHECK(pplabel, MAGIC_PIPE); COUNTER_INC(pipe_create); } COUNTER_DECL(pipe_destroy_label); static void test_pipe_destroy_label(struct label *label) { LABEL_DESTROY(label, MAGIC_PIPE); COUNTER_INC(pipe_destroy_label); } COUNTER_DECL(pipe_externalize_label); static int test_pipe_externalize_label(struct label *label, char *element_name, struct sbuf *sb, int *claimed) { LABEL_CHECK(label, MAGIC_PIPE); COUNTER_INC(pipe_externalize_label); return (0); } COUNTER_DECL(pipe_init_label); static void test_pipe_init_label(struct label *label) { LABEL_INIT(label, MAGIC_PIPE); COUNTER_INC(pipe_init_label); } COUNTER_DECL(pipe_internalize_label); static int test_pipe_internalize_label(struct label *label, char *element_name, char *element_data, int *claimed) { LABEL_CHECK(label, MAGIC_PIPE); COUNTER_INC(pipe_internalize_label); return (0); } COUNTER_DECL(pipe_relabel); static void test_pipe_relabel(struct ucred *cred, struct pipepair *pp, struct label *pplabel, struct label *newlabel) { LABEL_CHECK(cred->cr_label, MAGIC_CRED); LABEL_CHECK(pplabel, MAGIC_PIPE); LABEL_CHECK(newlabel, MAGIC_PIPE); COUNTER_INC(pipe_relabel); } -COUNTER_DECL(posixsem_check_destroy); -static int -test_posixsem_check_destroy(struct ucred *cred, struct ksem *ks, - struct label *kslabel) -{ - - LABEL_CHECK(cred->cr_label, MAGIC_CRED); - LABEL_CHECK(kslabel, MAGIC_POSIX_SEM); - COUNTER_INC(posixsem_check_destroy); - - return (0); -} - COUNTER_DECL(posixsem_check_getvalue); static int test_posixsem_check_getvalue(struct ucred *cred, struct ksem *ks, struct label *kslabel) { LABEL_CHECK(cred->cr_label, MAGIC_CRED); LABEL_CHECK(kslabel, MAGIC_POSIX_SEM); COUNTER_INC(posixsem_check_getvalue); return (0); } COUNTER_DECL(posixsem_check_open); static int test_posixsem_check_open(struct ucred *cred, struct ksem *ks, struct label *kslabel) { LABEL_CHECK(cred->cr_label, MAGIC_CRED); LABEL_CHECK(kslabel, MAGIC_POSIX_SEM); COUNTER_INC(posixsem_check_open); return (0); } COUNTER_DECL(posixsem_check_post); static int test_posixsem_check_post(struct ucred *cred, struct ksem *ks, struct label *kslabel) { LABEL_CHECK(cred->cr_label, MAGIC_CRED); LABEL_CHECK(kslabel, MAGIC_POSIX_SEM); COUNTER_INC(posixsem_check_post); return (0); } COUNTER_DECL(posixsem_check_unlink); static int test_posixsem_check_unlink(struct ucred *cred, struct ksem *ks, struct label *kslabel) { LABEL_CHECK(cred->cr_label, MAGIC_CRED); LABEL_CHECK(kslabel, MAGIC_POSIX_SEM); COUNTER_INC(posixsem_check_unlink); return (0); } COUNTER_DECL(posixsem_check_wait); static int test_posixsem_check_wait(struct ucred *cred, struct ksem *ks, struct label *kslabel) { LABEL_CHECK(cred->cr_label, MAGIC_CRED); LABEL_CHECK(kslabel, MAGIC_POSIX_SEM); COUNTER_INC(posixsem_check_wait); return (0); } COUNTER_DECL(posixsem_create); static void test_posixsem_create(struct ucred *cred, struct ksem *ks, struct label *kslabel) { LABEL_CHECK(cred->cr_label, MAGIC_CRED); LABEL_CHECK(kslabel, MAGIC_POSIX_SEM); COUNTER_INC(posixsem_create); } COUNTER_DECL(posixsem_destroy_label); static void test_posixsem_destroy_label(struct label *label) { LABEL_DESTROY(label, MAGIC_POSIX_SEM); COUNTER_INC(posixsem_destroy_label); } COUNTER_DECL(posixsem_init_label); static void test_posixsem_init_label(struct label *label) { LABEL_INIT(label, MAGIC_POSIX_SEM); COUNTER_INC(posixsem_init_label); } COUNTER_DECL(posixshm_check_mmap); static int test_posixshm_check_mmap(struct ucred *cred, struct shmfd *shmfd, struct label *shmfdlabel, int prot, int flags) { LABEL_CHECK(cred->cr_label, MAGIC_CRED); LABEL_CHECK(shmfdlabel, MAGIC_POSIX_SHM); return (0); } COUNTER_DECL(posixshm_check_open); static int test_posixshm_check_open(struct ucred *cred, struct shmfd *shmfd, struct label *shmfdlabel) { LABEL_CHECK(cred->cr_label, MAGIC_CRED); LABEL_CHECK(shmfdlabel, MAGIC_POSIX_SHM); return (0); } COUNTER_DECL(posixshm_check_stat); static int test_posixshm_check_stat(struct ucred *active_cred, struct ucred *file_cred, struct shmfd *shmfd, struct label *shmfdlabel) { LABEL_CHECK(active_cred->cr_label, MAGIC_CRED); LABEL_CHECK(file_cred->cr_label, MAGIC_CRED); LABEL_CHECK(shmfdlabel, MAGIC_POSIX_SHM); return (0); } COUNTER_DECL(posixshm_check_truncate); static int test_posixshm_check_truncate(struct ucred *active_cred, struct ucred *file_cred, struct shmfd *shmfd, struct label *shmfdlabel) { LABEL_CHECK(active_cred->cr_label, MAGIC_CRED); LABEL_CHECK(file_cred->cr_label, MAGIC_CRED); LABEL_CHECK(shmfdlabel, MAGIC_POSIX_SHM); return (0); } COUNTER_DECL(posixshm_check_unlink); static int test_posixshm_check_unlink(struct ucred *cred, struct shmfd *shmfd, struct label *shmfdlabel) { LABEL_CHECK(cred->cr_label, MAGIC_CRED); LABEL_CHECK(shmfdlabel, MAGIC_POSIX_SHM); return (0); } COUNTER_DECL(posixshm_create); static void test_posixshm_create(struct ucred *cred, struct shmfd *shmfd, struct label *shmfdlabel) { LABEL_CHECK(cred->cr_label, MAGIC_CRED); LABEL_CHECK(shmfdlabel, MAGIC_POSIX_SHM); COUNTER_INC(posixshm_create); } COUNTER_DECL(posixshm_destroy_label); static void test_posixshm_destroy_label(struct label *label) { LABEL_DESTROY(label, MAGIC_POSIX_SHM); COUNTER_INC(posixshm_destroy_label); } COUNTER_DECL(posixshm_init_label); static void test_posixshm_init_label(struct label *label) { LABEL_INIT(label, MAGIC_POSIX_SHM); COUNTER_INC(posixshm_init_label); } COUNTER_DECL(proc_check_debug); static int test_proc_check_debug(struct ucred *cred, struct proc *p) { LABEL_CHECK(cred->cr_label, MAGIC_CRED); LABEL_CHECK(p->p_ucred->cr_label, MAGIC_CRED); COUNTER_INC(proc_check_debug); return (0); } COUNTER_DECL(proc_check_sched); static int test_proc_check_sched(struct ucred *cred, struct proc *p) { LABEL_CHECK(cred->cr_label, MAGIC_CRED); LABEL_CHECK(p->p_ucred->cr_label, MAGIC_CRED); COUNTER_INC(proc_check_sched); return (0); } COUNTER_DECL(proc_check_signal); static int test_proc_check_signal(struct ucred *cred, struct proc *p, int signum) { LABEL_CHECK(cred->cr_label, MAGIC_CRED); LABEL_CHECK(p->p_ucred->cr_label, MAGIC_CRED); COUNTER_INC(proc_check_signal); return (0); } COUNTER_DECL(proc_check_setaudit); static int test_proc_check_setaudit(struct ucred *cred, struct auditinfo *ai) { LABEL_CHECK(cred->cr_label, MAGIC_CRED); COUNTER_INC(proc_check_setaudit); return (0); } COUNTER_DECL(proc_check_setaudit_addr); static int test_proc_check_setaudit_addr(struct ucred *cred, struct auditinfo_addr *aia) { LABEL_CHECK(cred->cr_label, MAGIC_CRED); COUNTER_INC(proc_check_setaudit_addr); return (0); } COUNTER_DECL(proc_check_setauid); static int test_proc_check_setauid(struct ucred *cred, uid_t auid) { LABEL_CHECK(cred->cr_label, MAGIC_CRED); COUNTER_INC(proc_check_setauid); return (0); } COUNTER_DECL(proc_check_setegid); static int test_proc_check_setegid(struct ucred *cred, gid_t egid) { LABEL_CHECK(cred->cr_label, MAGIC_CRED); COUNTER_INC(proc_check_setegid); return (0); } COUNTER_DECL(proc_check_euid); static int test_proc_check_seteuid(struct ucred *cred, uid_t euid) { LABEL_CHECK(cred->cr_label, MAGIC_CRED); COUNTER_INC(proc_check_euid); return (0); } COUNTER_DECL(proc_check_setregid); static int test_proc_check_setregid(struct ucred *cred, gid_t rgid, gid_t egid) { LABEL_CHECK(cred->cr_label, MAGIC_CRED); COUNTER_INC(proc_check_setregid); return (0); } COUNTER_DECL(proc_check_setreuid); static int test_proc_check_setreuid(struct ucred *cred, uid_t ruid, uid_t euid) { LABEL_CHECK(cred->cr_label, MAGIC_CRED); COUNTER_INC(proc_check_setreuid); return (0); } COUNTER_DECL(proc_check_setgid); static int test_proc_check_setgid(struct ucred *cred, gid_t gid) { LABEL_CHECK(cred->cr_label, MAGIC_CRED); COUNTER_INC(proc_check_setgid); return (0); } COUNTER_DECL(proc_check_setgroups); static int test_proc_check_setgroups(struct ucred *cred, int ngroups, gid_t *gidset) { LABEL_CHECK(cred->cr_label, MAGIC_CRED); COUNTER_INC(proc_check_setgroups); return (0); } COUNTER_DECL(proc_check_setresgid); static int test_proc_check_setresgid(struct ucred *cred, gid_t rgid, gid_t egid, gid_t sgid) { LABEL_CHECK(cred->cr_label, MAGIC_CRED); COUNTER_INC(proc_check_setresgid); return (0); } COUNTER_DECL(proc_check_setresuid); static int test_proc_check_setresuid(struct ucred *cred, uid_t ruid, uid_t euid, uid_t suid) { LABEL_CHECK(cred->cr_label, MAGIC_CRED); COUNTER_INC(proc_check_setresuid); return (0); } COUNTER_DECL(proc_check_setuid); static int test_proc_check_setuid(struct ucred *cred, uid_t uid) { LABEL_CHECK(cred->cr_label, MAGIC_CRED); COUNTER_INC(proc_check_setuid); return (0); } COUNTER_DECL(proc_check_wait); static int test_proc_check_wait(struct ucred *cred, struct proc *p) { LABEL_CHECK(cred->cr_label, MAGIC_CRED); LABEL_CHECK(p->p_ucred->cr_label, MAGIC_CRED); COUNTER_INC(proc_check_wait); return (0); } COUNTER_DECL(proc_create_init); static void test_proc_create_init(struct ucred *cred) { LABEL_CHECK(cred->cr_label, MAGIC_CRED); COUNTER_INC(proc_create_init); } COUNTER_DECL(proc_create_swapper); static void test_proc_create_swapper(struct ucred *cred) { LABEL_CHECK(cred->cr_label, MAGIC_CRED); COUNTER_INC(proc_create_swapper); } COUNTER_DECL(proc_destroy_label); static void test_proc_destroy_label(struct label *label) { LABEL_DESTROY(label, MAGIC_PROC); COUNTER_INC(proc_destroy_label); } COUNTER_DECL(proc_init_label); static void test_proc_init_label(struct label *label) { LABEL_INIT(label, MAGIC_PROC); COUNTER_INC(proc_init_label); } COUNTER_DECL(socket_check_accept); static int test_socket_check_accept(struct ucred *cred, struct socket *so, struct label *solabel) { LABEL_CHECK(cred->cr_label, MAGIC_CRED); LABEL_CHECK(solabel, MAGIC_SOCKET); COUNTER_INC(socket_check_accept); return (0); } COUNTER_DECL(socket_check_bind); static int test_socket_check_bind(struct ucred *cred, struct socket *so, struct label *solabel, struct sockaddr *sa) { LABEL_CHECK(cred->cr_label, MAGIC_CRED); LABEL_CHECK(solabel, MAGIC_SOCKET); COUNTER_INC(socket_check_bind); return (0); } COUNTER_DECL(socket_check_connect); static int test_socket_check_connect(struct ucred *cred, struct socket *so, struct label *solabel, struct sockaddr *sa) { LABEL_CHECK(cred->cr_label, MAGIC_CRED); LABEL_CHECK(solabel, MAGIC_SOCKET); COUNTER_INC(socket_check_connect); return (0); } COUNTER_DECL(socket_check_deliver); static int test_socket_check_deliver(struct socket *so, struct label *solabel, struct mbuf *m, struct label *mlabel) { LABEL_CHECK(solabel, MAGIC_SOCKET); LABEL_CHECK(mlabel, MAGIC_MBUF); COUNTER_INC(socket_check_deliver); return (0); } COUNTER_DECL(socket_check_listen); static int test_socket_check_listen(struct ucred *cred, struct socket *so, struct label *solabel) { LABEL_CHECK(cred->cr_label, MAGIC_CRED); LABEL_CHECK(solabel, MAGIC_SOCKET); COUNTER_INC(socket_check_listen); return (0); } COUNTER_DECL(socket_check_poll); static int test_socket_check_poll(struct ucred *cred, struct socket *so, struct label *solabel) { LABEL_CHECK(cred->cr_label, MAGIC_CRED); LABEL_CHECK(solabel, MAGIC_SOCKET); COUNTER_INC(socket_check_poll); return (0); } COUNTER_DECL(socket_check_receive); static int test_socket_check_receive(struct ucred *cred, struct socket *so, struct label *solabel) { LABEL_CHECK(cred->cr_label, MAGIC_CRED); LABEL_CHECK(solabel, MAGIC_SOCKET); COUNTER_INC(socket_check_receive); return (0); } COUNTER_DECL(socket_check_relabel); static int test_socket_check_relabel(struct ucred *cred, struct socket *so, struct label *solabel, struct label *newlabel) { LABEL_CHECK(cred->cr_label, MAGIC_CRED); LABEL_CHECK(solabel, MAGIC_SOCKET); LABEL_CHECK(newlabel, MAGIC_SOCKET); COUNTER_INC(socket_check_relabel); return (0); } COUNTER_DECL(socket_check_send); static int test_socket_check_send(struct ucred *cred, struct socket *so, struct label *solabel) { LABEL_CHECK(cred->cr_label, MAGIC_CRED); LABEL_CHECK(solabel, MAGIC_SOCKET); COUNTER_INC(socket_check_send); return (0); } COUNTER_DECL(socket_check_stat); static int test_socket_check_stat(struct ucred *cred, struct socket *so, struct label *solabel) { LABEL_CHECK(cred->cr_label, MAGIC_CRED); LABEL_CHECK(solabel, MAGIC_SOCKET); COUNTER_INC(socket_check_stat); return (0); } COUNTER_DECL(socket_check_visible); static int test_socket_check_visible(struct ucred *cred, struct socket *so, struct label *solabel) { LABEL_CHECK(cred->cr_label, MAGIC_CRED); LABEL_CHECK(solabel, MAGIC_SOCKET); COUNTER_INC(socket_check_visible); return (0); } COUNTER_DECL(socket_copy_label); static void test_socket_copy_label(struct label *src, struct label *dest) { LABEL_CHECK(src, MAGIC_SOCKET); LABEL_CHECK(dest, MAGIC_SOCKET); COUNTER_INC(socket_copy_label); } COUNTER_DECL(socket_create); static void test_socket_create(struct ucred *cred, struct socket *so, struct label *solabel) { LABEL_CHECK(cred->cr_label, MAGIC_CRED); LABEL_CHECK(solabel, MAGIC_SOCKET); COUNTER_INC(socket_create); } COUNTER_DECL(socket_create_mbuf); static void test_socket_create_mbuf(struct socket *so, struct label *socketlabel, struct mbuf *m, struct label *mlabel) { LABEL_CHECK(socketlabel, MAGIC_SOCKET); LABEL_CHECK(mlabel, MAGIC_MBUF); COUNTER_INC(socket_create_mbuf); } COUNTER_DECL(socket_destroy_label); static void test_socket_destroy_label(struct label *label) { LABEL_DESTROY(label, MAGIC_SOCKET); COUNTER_INC(socket_destroy_label); } COUNTER_DECL(socket_externalize_label); static int test_socket_externalize_label(struct label *label, char *element_name, struct sbuf *sb, int *claimed) { LABEL_CHECK(label, MAGIC_SOCKET); COUNTER_INC(socket_externalize_label); return (0); } COUNTER_DECL(socket_init_label); static int test_socket_init_label(struct label *label, int flag) { if (flag & M_WAITOK) WITNESS_WARN(WARN_GIANTOK | WARN_SLEEPOK, NULL, "test_socket_init_label() at %s:%d", __FILE__, __LINE__); LABEL_INIT(label, MAGIC_SOCKET); COUNTER_INC(socket_init_label); return (0); } COUNTER_DECL(socket_internalize_label); static int test_socket_internalize_label(struct label *label, char *element_name, char *element_data, int *claimed) { LABEL_CHECK(label, MAGIC_SOCKET); COUNTER_INC(socket_internalize_label); return (0); } COUNTER_DECL(socket_newconn); static void test_socket_newconn(struct socket *oldso, struct label *oldsolabel, struct socket *newso, struct label *newsolabel) { LABEL_CHECK(oldsolabel, MAGIC_SOCKET); LABEL_CHECK(newsolabel, MAGIC_SOCKET); COUNTER_INC(socket_newconn); } COUNTER_DECL(socket_relabel); static void test_socket_relabel(struct ucred *cred, struct socket *so, struct label *solabel, struct label *newlabel) { LABEL_CHECK(cred->cr_label, MAGIC_CRED); LABEL_CHECK(solabel, MAGIC_SOCKET); LABEL_CHECK(newlabel, MAGIC_SOCKET); COUNTER_INC(socket_relabel); } COUNTER_DECL(socketpeer_destroy_label); static void test_socketpeer_destroy_label(struct label *label) { LABEL_DESTROY(label, MAGIC_SOCKET); COUNTER_INC(socketpeer_destroy_label); } COUNTER_DECL(socketpeer_externalize_label); static int test_socketpeer_externalize_label(struct label *label, char *element_name, struct sbuf *sb, int *claimed) { LABEL_CHECK(label, MAGIC_SOCKET); COUNTER_INC(socketpeer_externalize_label); return (0); } COUNTER_DECL(socketpeer_init_label); static int test_socketpeer_init_label(struct label *label, int flag) { if (flag & M_WAITOK) WITNESS_WARN(WARN_GIANTOK | WARN_SLEEPOK, NULL, "test_socketpeer_init_label() at %s:%d", __FILE__, __LINE__); LABEL_INIT(label, MAGIC_SOCKET); COUNTER_INC(socketpeer_init_label); return (0); } COUNTER_DECL(socketpeer_set_from_mbuf); static void test_socketpeer_set_from_mbuf(struct mbuf *m, struct label *mlabel, struct socket *socket, struct label *socketpeerlabel) { LABEL_CHECK(mlabel, MAGIC_MBUF); LABEL_CHECK(socketpeerlabel, MAGIC_SOCKET); COUNTER_INC(socketpeer_set_from_mbuf); } COUNTER_DECL(socketpeer_set_from_socket); static void test_socketpeer_set_from_socket(struct socket *oldso, struct label *oldsolabel, struct socket *newso, struct label *newsopeerlabel) { LABEL_CHECK(oldsolabel, MAGIC_SOCKET); LABEL_CHECK(newsopeerlabel, MAGIC_SOCKET); COUNTER_INC(socketpeer_set_from_socket); } COUNTER_DECL(syncache_create); static void test_syncache_create(struct label *label, struct inpcb *inp) { LABEL_CHECK(label, MAGIC_SYNCACHE); COUNTER_INC(syncache_create); } COUNTER_DECL(syncache_create_mbuf); static void test_syncache_create_mbuf(struct label *sc_label, struct mbuf *m, struct label *mlabel) { LABEL_CHECK(sc_label, MAGIC_SYNCACHE); LABEL_CHECK(mlabel, MAGIC_MBUF); COUNTER_INC(syncache_create_mbuf); } COUNTER_DECL(syncache_destroy_label); static void test_syncache_destroy_label(struct label *label) { LABEL_DESTROY(label, MAGIC_SYNCACHE); COUNTER_INC(syncache_destroy_label); } COUNTER_DECL(syncache_init_label); static int test_syncache_init_label(struct label *label, int flag) { if (flag & M_WAITOK) WITNESS_WARN(WARN_GIANTOK | WARN_SLEEPOK, NULL, "test_syncache_init_label() at %s:%d", __FILE__, __LINE__); LABEL_INIT(label, MAGIC_SYNCACHE); COUNTER_INC(syncache_init_label); return (0); } COUNTER_DECL(system_check_acct); static int test_system_check_acct(struct ucred *cred, struct vnode *vp, struct label *vplabel) { LABEL_CHECK(cred->cr_label, MAGIC_CRED); LABEL_CHECK(vplabel, MAGIC_VNODE); COUNTER_INC(system_check_acct); return (0); } COUNTER_DECL(system_check_audit); static int test_system_check_audit(struct ucred *cred, void *record, int length) { LABEL_CHECK(cred->cr_label, MAGIC_CRED); COUNTER_INC(system_check_audit); return (0); } COUNTER_DECL(system_check_auditctl); static int test_system_check_auditctl(struct ucred *cred, struct vnode *vp, struct label *vplabel) { LABEL_CHECK(cred->cr_label, MAGIC_CRED); LABEL_CHECK(vplabel, MAGIC_VNODE); COUNTER_INC(system_check_auditctl); return (0); } COUNTER_DECL(system_check_auditon); static int test_system_check_auditon(struct ucred *cred, int cmd) { LABEL_CHECK(cred->cr_label, MAGIC_CRED); COUNTER_INC(system_check_auditon); return (0); } COUNTER_DECL(system_check_reboot); static int test_system_check_reboot(struct ucred *cred, int how) { LABEL_CHECK(cred->cr_label, MAGIC_CRED); COUNTER_INC(system_check_reboot); return (0); } COUNTER_DECL(system_check_swapoff); static int test_system_check_swapoff(struct ucred *cred, struct vnode *vp, struct label *vplabel) { LABEL_CHECK(cred->cr_label, MAGIC_CRED); LABEL_CHECK(vplabel, MAGIC_VNODE); COUNTER_INC(system_check_swapoff); return (0); } COUNTER_DECL(system_check_swapon); static int test_system_check_swapon(struct ucred *cred, struct vnode *vp, struct label *vplabel) { LABEL_CHECK(cred->cr_label, MAGIC_CRED); LABEL_CHECK(vplabel, MAGIC_VNODE); COUNTER_INC(system_check_swapon); return (0); } COUNTER_DECL(system_check_sysctl); static int test_system_check_sysctl(struct ucred *cred, struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req) { LABEL_CHECK(cred->cr_label, MAGIC_CRED); COUNTER_INC(system_check_sysctl); return (0); } COUNTER_DECL(sysvmsg_cleanup); static void test_sysvmsg_cleanup(struct label *msglabel) { LABEL_CHECK(msglabel, MAGIC_SYSV_MSG); COUNTER_INC(sysvmsg_cleanup); } COUNTER_DECL(sysvmsg_create); static void test_sysvmsg_create(struct ucred *cred, struct msqid_kernel *msqkptr, struct label *msqlabel, struct msg *msgptr, struct label *msglabel) { LABEL_CHECK(msglabel, MAGIC_SYSV_MSG); LABEL_CHECK(msqlabel, MAGIC_SYSV_MSQ); COUNTER_INC(sysvmsg_create); } COUNTER_DECL(sysvmsg_destroy_label); static void test_sysvmsg_destroy_label(struct label *label) { LABEL_DESTROY(label, MAGIC_SYSV_MSG); COUNTER_INC(sysvmsg_destroy_label); } COUNTER_DECL(sysvmsg_init_label); static void test_sysvmsg_init_label(struct label *label) { LABEL_INIT(label, MAGIC_SYSV_MSG); COUNTER_INC(sysvmsg_init_label); } COUNTER_DECL(sysvmsq_check_msgmsq); static int test_sysvmsq_check_msgmsq(struct ucred *cred, struct msg *msgptr, struct label *msglabel, struct msqid_kernel *msqkptr, struct label *msqklabel) { LABEL_CHECK(msqklabel, MAGIC_SYSV_MSQ); LABEL_CHECK(msglabel, MAGIC_SYSV_MSG); LABEL_CHECK(cred->cr_label, MAGIC_CRED); COUNTER_INC(sysvmsq_check_msgmsq); return (0); } COUNTER_DECL(sysvmsq_check_msgrcv); static int test_sysvmsq_check_msgrcv(struct ucred *cred, struct msg *msgptr, struct label *msglabel) { LABEL_CHECK(msglabel, MAGIC_SYSV_MSG); LABEL_CHECK(cred->cr_label, MAGIC_CRED); COUNTER_INC(sysvmsq_check_msgrcv); return (0); } COUNTER_DECL(sysvmsq_check_msgrmid); static int test_sysvmsq_check_msgrmid(struct ucred *cred, struct msg *msgptr, struct label *msglabel) { LABEL_CHECK(msglabel, MAGIC_SYSV_MSG); LABEL_CHECK(cred->cr_label, MAGIC_CRED); COUNTER_INC(sysvmsq_check_msgrmid); return (0); } COUNTER_DECL(sysvmsq_check_msqget); static int test_sysvmsq_check_msqget(struct ucred *cred, struct msqid_kernel *msqkptr, struct label *msqklabel) { LABEL_CHECK(msqklabel, MAGIC_SYSV_MSQ); LABEL_CHECK(cred->cr_label, MAGIC_CRED); COUNTER_INC(sysvmsq_check_msqget); return (0); } COUNTER_DECL(sysvmsq_check_msqsnd); static int test_sysvmsq_check_msqsnd(struct ucred *cred, struct msqid_kernel *msqkptr, struct label *msqklabel) { LABEL_CHECK(msqklabel, MAGIC_SYSV_MSQ); LABEL_CHECK(cred->cr_label, MAGIC_CRED); COUNTER_INC(sysvmsq_check_msqsnd); return (0); } COUNTER_DECL(sysvmsq_check_msqrcv); static int test_sysvmsq_check_msqrcv(struct ucred *cred, struct msqid_kernel *msqkptr, struct label *msqklabel) { LABEL_CHECK(msqklabel, MAGIC_SYSV_MSQ); LABEL_CHECK(cred->cr_label, MAGIC_CRED); COUNTER_INC(sysvmsq_check_msqrcv); return (0); } COUNTER_DECL(sysvmsq_check_msqctl); static int test_sysvmsq_check_msqctl(struct ucred *cred, struct msqid_kernel *msqkptr, struct label *msqklabel, int cmd) { LABEL_CHECK(msqklabel, MAGIC_SYSV_MSQ); LABEL_CHECK(cred->cr_label, MAGIC_CRED); COUNTER_INC(sysvmsq_check_msqctl); return (0); } COUNTER_DECL(sysvmsq_cleanup); static void test_sysvmsq_cleanup(struct label *msqlabel) { LABEL_CHECK(msqlabel, MAGIC_SYSV_MSQ); COUNTER_INC(sysvmsq_cleanup); } COUNTER_DECL(sysvmsq_create); static void test_sysvmsq_create(struct ucred *cred, struct msqid_kernel *msqkptr, struct label *msqlabel) { LABEL_CHECK(msqlabel, MAGIC_SYSV_MSQ); COUNTER_INC(sysvmsq_create); } COUNTER_DECL(sysvmsq_destroy_label); static void test_sysvmsq_destroy_label(struct label *label) { LABEL_DESTROY(label, MAGIC_SYSV_MSQ); COUNTER_INC(sysvmsq_destroy_label); } COUNTER_DECL(sysvmsq_init_label); static void test_sysvmsq_init_label(struct label *label) { LABEL_INIT(label, MAGIC_SYSV_MSQ); COUNTER_INC(sysvmsq_init_label); } COUNTER_DECL(sysvsem_check_semctl); static int test_sysvsem_check_semctl(struct ucred *cred, struct semid_kernel *semakptr, struct label *semaklabel, int cmd) { LABEL_CHECK(cred->cr_label, MAGIC_CRED); LABEL_CHECK(semaklabel, MAGIC_SYSV_SEM); COUNTER_INC(sysvsem_check_semctl); return (0); } COUNTER_DECL(sysvsem_check_semget); static int test_sysvsem_check_semget(struct ucred *cred, struct semid_kernel *semakptr, struct label *semaklabel) { LABEL_CHECK(cred->cr_label, MAGIC_CRED); LABEL_CHECK(semaklabel, MAGIC_SYSV_SEM); COUNTER_INC(sysvsem_check_semget); return (0); } COUNTER_DECL(sysvsem_check_semop); static int test_sysvsem_check_semop(struct ucred *cred, struct semid_kernel *semakptr, struct label *semaklabel, size_t accesstype) { LABEL_CHECK(cred->cr_label, MAGIC_CRED); LABEL_CHECK(semaklabel, MAGIC_SYSV_SEM); COUNTER_INC(sysvsem_check_semop); return (0); } COUNTER_DECL(sysvsem_cleanup); static void test_sysvsem_cleanup(struct label *semalabel) { LABEL_CHECK(semalabel, MAGIC_SYSV_SEM); COUNTER_INC(sysvsem_cleanup); } COUNTER_DECL(sysvsem_create); static void test_sysvsem_create(struct ucred *cred, struct semid_kernel *semakptr, struct label *semalabel) { LABEL_CHECK(semalabel, MAGIC_SYSV_SEM); COUNTER_INC(sysvsem_create); } COUNTER_DECL(sysvsem_destroy_label); static void test_sysvsem_destroy_label(struct label *label) { LABEL_DESTROY(label, MAGIC_SYSV_SEM); COUNTER_INC(sysvsem_destroy_label); } COUNTER_DECL(sysvsem_init_label); static void test_sysvsem_init_label(struct label *label) { LABEL_INIT(label, MAGIC_SYSV_SEM); COUNTER_INC(sysvsem_init_label); } COUNTER_DECL(sysvshm_check_shmat); static int test_sysvshm_check_shmat(struct ucred *cred, struct shmid_kernel *shmsegptr, struct label *shmseglabel, int shmflg) { LABEL_CHECK(cred->cr_label, MAGIC_CRED); LABEL_CHECK(shmseglabel, MAGIC_SYSV_SHM); COUNTER_INC(sysvshm_check_shmat); return (0); } COUNTER_DECL(sysvshm_check_shmctl); static int test_sysvshm_check_shmctl(struct ucred *cred, struct shmid_kernel *shmsegptr, struct label *shmseglabel, int cmd) { LABEL_CHECK(cred->cr_label, MAGIC_CRED); LABEL_CHECK(shmseglabel, MAGIC_SYSV_SHM); COUNTER_INC(sysvshm_check_shmctl); return (0); } COUNTER_DECL(sysvshm_check_shmdt); static int test_sysvshm_check_shmdt(struct ucred *cred, struct shmid_kernel *shmsegptr, struct label *shmseglabel) { LABEL_CHECK(cred->cr_label, MAGIC_CRED); LABEL_CHECK(shmseglabel, MAGIC_SYSV_SHM); COUNTER_INC(sysvshm_check_shmdt); return (0); } COUNTER_DECL(sysvshm_check_shmget); static int test_sysvshm_check_shmget(struct ucred *cred, struct shmid_kernel *shmsegptr, struct label *shmseglabel, int shmflg) { LABEL_CHECK(cred->cr_label, MAGIC_CRED); LABEL_CHECK(shmseglabel, MAGIC_SYSV_SHM); COUNTER_INC(sysvshm_check_shmget); return (0); } COUNTER_DECL(sysvshm_cleanup); static void test_sysvshm_cleanup(struct label *shmlabel) { LABEL_CHECK(shmlabel, MAGIC_SYSV_SHM); COUNTER_INC(sysvshm_cleanup); } COUNTER_DECL(sysvshm_create); static void test_sysvshm_create(struct ucred *cred, struct shmid_kernel *shmsegptr, struct label *shmlabel) { LABEL_CHECK(shmlabel, MAGIC_SYSV_SHM); COUNTER_INC(sysvshm_create); } COUNTER_DECL(sysvshm_destroy_label); static void test_sysvshm_destroy_label(struct label *label) { LABEL_DESTROY(label, MAGIC_SYSV_SHM); COUNTER_INC(sysvshm_destroy_label); } COUNTER_DECL(sysvshm_init_label); static void test_sysvshm_init_label(struct label *label) { LABEL_INIT(label, MAGIC_SYSV_SHM); COUNTER_INC(sysvshm_init_label); } COUNTER_DECL(thread_userret); static void test_thread_userret(struct thread *td) { COUNTER_INC(thread_userret); } COUNTER_DECL(vnode_associate_extattr); static int test_vnode_associate_extattr(struct mount *mp, struct label *mplabel, struct vnode *vp, struct label *vplabel) { LABEL_CHECK(mplabel, MAGIC_MOUNT); LABEL_CHECK(vplabel, MAGIC_VNODE); COUNTER_INC(vnode_associate_extattr); return (0); } COUNTER_DECL(vnode_associate_singlelabel); static void test_vnode_associate_singlelabel(struct mount *mp, struct label *mplabel, struct vnode *vp, struct label *vplabel) { LABEL_CHECK(mplabel, MAGIC_MOUNT); LABEL_CHECK(vplabel, MAGIC_VNODE); COUNTER_INC(vnode_associate_singlelabel); } COUNTER_DECL(vnode_check_access); static int test_vnode_check_access(struct ucred *cred, struct vnode *vp, struct label *vplabel, int acc_mode) { LABEL_CHECK(cred->cr_label, MAGIC_CRED); LABEL_CHECK(vplabel, MAGIC_VNODE); COUNTER_INC(vnode_check_access); return (0); } COUNTER_DECL(vnode_check_chdir); static int test_vnode_check_chdir(struct ucred *cred, struct vnode *dvp, struct label *dvplabel) { LABEL_CHECK(cred->cr_label, MAGIC_CRED); LABEL_CHECK(dvplabel, MAGIC_VNODE); COUNTER_INC(vnode_check_chdir); return (0); } COUNTER_DECL(vnode_check_chroot); static int test_vnode_check_chroot(struct ucred *cred, struct vnode *dvp, struct label *dvplabel) { LABEL_CHECK(cred->cr_label, MAGIC_CRED); LABEL_CHECK(dvplabel, MAGIC_VNODE); COUNTER_INC(vnode_check_chroot); return (0); } COUNTER_DECL(vnode_check_create); static int test_vnode_check_create(struct ucred *cred, struct vnode *dvp, struct label *dvplabel, struct componentname *cnp, struct vattr *vap) { LABEL_CHECK(cred->cr_label, MAGIC_CRED); LABEL_CHECK(dvplabel, MAGIC_VNODE); COUNTER_INC(vnode_check_create); return (0); } COUNTER_DECL(vnode_check_deleteacl); static int test_vnode_check_deleteacl(struct ucred *cred, struct vnode *vp, struct label *vplabel, acl_type_t type) { LABEL_CHECK(cred->cr_label, MAGIC_CRED); LABEL_CHECK(vplabel, MAGIC_VNODE); COUNTER_INC(vnode_check_deleteacl); return (0); } COUNTER_DECL(vnode_check_deleteextattr); static int test_vnode_check_deleteextattr(struct ucred *cred, struct vnode *vp, struct label *vplabel, int attrnamespace, const char *name) { LABEL_CHECK(cred->cr_label, MAGIC_CRED); LABEL_CHECK(vplabel, MAGIC_VNODE); COUNTER_INC(vnode_check_deleteextattr); return (0); } COUNTER_DECL(vnode_check_exec); static int test_vnode_check_exec(struct ucred *cred, struct vnode *vp, struct label *vplabel, struct image_params *imgp, struct label *execlabel) { LABEL_CHECK(cred->cr_label, MAGIC_CRED); LABEL_CHECK(vplabel, MAGIC_VNODE); LABEL_CHECK(execlabel, MAGIC_CRED); COUNTER_INC(vnode_check_exec); return (0); } COUNTER_DECL(vnode_check_getacl); static int test_vnode_check_getacl(struct ucred *cred, struct vnode *vp, struct label *vplabel, acl_type_t type) { LABEL_CHECK(cred->cr_label, MAGIC_CRED); LABEL_CHECK(vplabel, MAGIC_VNODE); COUNTER_INC(vnode_check_getacl); return (0); } COUNTER_DECL(vnode_check_getextattr); static int test_vnode_check_getextattr(struct ucred *cred, struct vnode *vp, struct label *vplabel, int attrnamespace, const char *name, struct uio *uio) { LABEL_CHECK(cred->cr_label, MAGIC_CRED); LABEL_CHECK(vplabel, MAGIC_VNODE); COUNTER_INC(vnode_check_getextattr); return (0); } COUNTER_DECL(vnode_check_link); static int test_vnode_check_link(struct ucred *cred, struct vnode *dvp, struct label *dvplabel, struct vnode *vp, struct label *vplabel, struct componentname *cnp) { LABEL_CHECK(cred->cr_label, MAGIC_CRED); LABEL_CHECK(dvplabel, MAGIC_VNODE); LABEL_CHECK(vplabel, MAGIC_VNODE); COUNTER_INC(vnode_check_link); return (0); } COUNTER_DECL(vnode_check_listextattr); static int test_vnode_check_listextattr(struct ucred *cred, struct vnode *vp, struct label *vplabel, int attrnamespace) { LABEL_CHECK(cred->cr_label, MAGIC_CRED); LABEL_CHECK(vplabel, MAGIC_VNODE); COUNTER_INC(vnode_check_listextattr); return (0); } COUNTER_DECL(vnode_check_lookup); static int test_vnode_check_lookup(struct ucred *cred, struct vnode *dvp, struct label *dvplabel, struct componentname *cnp) { LABEL_CHECK(cred->cr_label, MAGIC_CRED); LABEL_CHECK(dvplabel, MAGIC_VNODE); COUNTER_INC(vnode_check_lookup); return (0); } COUNTER_DECL(vnode_check_mmap); static int test_vnode_check_mmap(struct ucred *cred, struct vnode *vp, struct label *vplabel, int prot, int flags) { LABEL_CHECK(cred->cr_label, MAGIC_CRED); LABEL_CHECK(vplabel, MAGIC_VNODE); COUNTER_INC(vnode_check_mmap); return (0); } COUNTER_DECL(vnode_check_open); static int test_vnode_check_open(struct ucred *cred, struct vnode *vp, struct label *vplabel, int acc_mode) { LABEL_CHECK(cred->cr_label, MAGIC_CRED); LABEL_CHECK(vplabel, MAGIC_VNODE); COUNTER_INC(vnode_check_open); return (0); } COUNTER_DECL(vnode_check_poll); static int test_vnode_check_poll(struct ucred *active_cred, struct ucred *file_cred, struct vnode *vp, struct label *vplabel) { LABEL_CHECK(active_cred->cr_label, MAGIC_CRED); if (file_cred != NULL) LABEL_CHECK(file_cred->cr_label, MAGIC_CRED); LABEL_CHECK(vplabel, MAGIC_VNODE); COUNTER_INC(vnode_check_poll); return (0); } COUNTER_DECL(vnode_check_read); static int test_vnode_check_read(struct ucred *active_cred, struct ucred *file_cred, struct vnode *vp, struct label *vplabel) { LABEL_CHECK(active_cred->cr_label, MAGIC_CRED); if (file_cred != NULL) LABEL_CHECK(file_cred->cr_label, MAGIC_CRED); LABEL_CHECK(vplabel, MAGIC_VNODE); COUNTER_INC(vnode_check_read); return (0); } COUNTER_DECL(vnode_check_readdir); static int test_vnode_check_readdir(struct ucred *cred, struct vnode *dvp, struct label *dvplabel) { LABEL_CHECK(cred->cr_label, MAGIC_CRED); LABEL_CHECK(dvplabel, MAGIC_VNODE); COUNTER_INC(vnode_check_readdir); return (0); } COUNTER_DECL(vnode_check_readlink); static int test_vnode_check_readlink(struct ucred *cred, struct vnode *vp, struct label *vplabel) { LABEL_CHECK(cred->cr_label, MAGIC_CRED); LABEL_CHECK(vplabel, MAGIC_VNODE); COUNTER_INC(vnode_check_readlink); return (0); } COUNTER_DECL(vnode_check_relabel); static int test_vnode_check_relabel(struct ucred *cred, struct vnode *vp, struct label *vplabel, struct label *newlabel) { LABEL_CHECK(cred->cr_label, MAGIC_CRED); LABEL_CHECK(vplabel, MAGIC_VNODE); LABEL_CHECK(newlabel, MAGIC_VNODE); COUNTER_INC(vnode_check_relabel); return (0); } COUNTER_DECL(vnode_check_rename_from); static int test_vnode_check_rename_from(struct ucred *cred, struct vnode *dvp, struct label *dvplabel, struct vnode *vp, struct label *vplabel, struct componentname *cnp) { LABEL_CHECK(cred->cr_label, MAGIC_CRED); LABEL_CHECK(dvplabel, MAGIC_VNODE); LABEL_CHECK(vplabel, MAGIC_VNODE); COUNTER_INC(vnode_check_rename_from); return (0); } COUNTER_DECL(vnode_check_rename_to); static int test_vnode_check_rename_to(struct ucred *cred, struct vnode *dvp, struct label *dvplabel, struct vnode *vp, struct label *vplabel, int samedir, struct componentname *cnp) { LABEL_CHECK(cred->cr_label, MAGIC_CRED); LABEL_CHECK(dvplabel, MAGIC_VNODE); LABEL_CHECK(vplabel, MAGIC_VNODE); COUNTER_INC(vnode_check_rename_to); return (0); } COUNTER_DECL(vnode_check_revoke); static int test_vnode_check_revoke(struct ucred *cred, struct vnode *vp, struct label *vplabel) { LABEL_CHECK(cred->cr_label, MAGIC_CRED); LABEL_CHECK(vplabel, MAGIC_VNODE); COUNTER_INC(vnode_check_revoke); return (0); } COUNTER_DECL(vnode_check_setacl); static int test_vnode_check_setacl(struct ucred *cred, struct vnode *vp, struct label *vplabel, acl_type_t type, struct acl *acl) { LABEL_CHECK(cred->cr_label, MAGIC_CRED); LABEL_CHECK(vplabel, MAGIC_VNODE); COUNTER_INC(vnode_check_setacl); return (0); } COUNTER_DECL(vnode_check_setextattr); static int test_vnode_check_setextattr(struct ucred *cred, struct vnode *vp, struct label *vplabel, int attrnamespace, const char *name, struct uio *uio) { LABEL_CHECK(cred->cr_label, MAGIC_CRED); LABEL_CHECK(vplabel, MAGIC_VNODE); COUNTER_INC(vnode_check_setextattr); return (0); } COUNTER_DECL(vnode_check_setflags); static int test_vnode_check_setflags(struct ucred *cred, struct vnode *vp, struct label *vplabel, u_long flags) { LABEL_CHECK(cred->cr_label, MAGIC_CRED); LABEL_CHECK(vplabel, MAGIC_VNODE); COUNTER_INC(vnode_check_setflags); return (0); } COUNTER_DECL(vnode_check_setmode); static int test_vnode_check_setmode(struct ucred *cred, struct vnode *vp, struct label *vplabel, mode_t mode) { LABEL_CHECK(cred->cr_label, MAGIC_CRED); LABEL_CHECK(vplabel, MAGIC_VNODE); COUNTER_INC(vnode_check_setmode); return (0); } COUNTER_DECL(vnode_check_setowner); static int test_vnode_check_setowner(struct ucred *cred, struct vnode *vp, struct label *vplabel, uid_t uid, gid_t gid) { LABEL_CHECK(cred->cr_label, MAGIC_CRED); LABEL_CHECK(vplabel, MAGIC_VNODE); COUNTER_INC(vnode_check_setowner); return (0); } COUNTER_DECL(vnode_check_setutimes); static int test_vnode_check_setutimes(struct ucred *cred, struct vnode *vp, struct label *vplabel, struct timespec atime, struct timespec mtime) { LABEL_CHECK(cred->cr_label, MAGIC_CRED); LABEL_CHECK(vplabel, MAGIC_VNODE); COUNTER_INC(vnode_check_setutimes); return (0); } COUNTER_DECL(vnode_check_stat); static int test_vnode_check_stat(struct ucred *active_cred, struct ucred *file_cred, struct vnode *vp, struct label *vplabel) { LABEL_CHECK(active_cred->cr_label, MAGIC_CRED); if (file_cred != NULL) LABEL_CHECK(file_cred->cr_label, MAGIC_CRED); LABEL_CHECK(vplabel, MAGIC_VNODE); COUNTER_INC(vnode_check_stat); return (0); } COUNTER_DECL(vnode_check_unlink); static int test_vnode_check_unlink(struct ucred *cred, struct vnode *dvp, struct label *dvplabel, struct vnode *vp, struct label *vplabel, struct componentname *cnp) { LABEL_CHECK(cred->cr_label, MAGIC_CRED); LABEL_CHECK(dvplabel, MAGIC_VNODE); LABEL_CHECK(vplabel, MAGIC_VNODE); COUNTER_INC(vnode_check_unlink); return (0); } COUNTER_DECL(vnode_check_write); static int test_vnode_check_write(struct ucred *active_cred, struct ucred *file_cred, struct vnode *vp, struct label *vplabel) { LABEL_CHECK(active_cred->cr_label, MAGIC_CRED); if (file_cred != NULL) LABEL_CHECK(file_cred->cr_label, MAGIC_CRED); LABEL_CHECK(vplabel, MAGIC_VNODE); COUNTER_INC(vnode_check_write); return (0); } COUNTER_DECL(vnode_copy_label); static void test_vnode_copy_label(struct label *src, struct label *dest) { LABEL_CHECK(src, MAGIC_VNODE); LABEL_CHECK(dest, MAGIC_VNODE); COUNTER_INC(vnode_copy_label); } COUNTER_DECL(vnode_create_extattr); static int test_vnode_create_extattr(struct ucred *cred, struct mount *mp, struct label *mplabel, struct vnode *dvp, struct label *dvplabel, struct vnode *vp, struct label *vplabel, struct componentname *cnp) { LABEL_CHECK(cred->cr_label, MAGIC_CRED); LABEL_CHECK(mplabel, MAGIC_MOUNT); LABEL_CHECK(dvplabel, MAGIC_VNODE); COUNTER_INC(vnode_create_extattr); return (0); } COUNTER_DECL(vnode_destroy_label); static void test_vnode_destroy_label(struct label *label) { LABEL_DESTROY(label, MAGIC_VNODE); COUNTER_INC(vnode_destroy_label); } COUNTER_DECL(vnode_execve_transition); static void test_vnode_execve_transition(struct ucred *old, struct ucred *new, struct vnode *vp, struct label *filelabel, struct label *interpvplabel, struct image_params *imgp, struct label *execlabel) { LABEL_CHECK(old->cr_label, MAGIC_CRED); LABEL_CHECK(new->cr_label, MAGIC_CRED); LABEL_CHECK(filelabel, MAGIC_VNODE); LABEL_CHECK(interpvplabel, MAGIC_VNODE); LABEL_CHECK(execlabel, MAGIC_CRED); COUNTER_INC(vnode_execve_transition); } COUNTER_DECL(vnode_execve_will_transition); static int test_vnode_execve_will_transition(struct ucred *old, struct vnode *vp, struct label *filelabel, struct label *interpvplabel, struct image_params *imgp, struct label *execlabel) { LABEL_CHECK(old->cr_label, MAGIC_CRED); LABEL_CHECK(filelabel, MAGIC_VNODE); LABEL_CHECK(interpvplabel, MAGIC_VNODE); LABEL_CHECK(execlabel, MAGIC_CRED); COUNTER_INC(vnode_execve_will_transition); return (0); } COUNTER_DECL(vnode_externalize_label); static int test_vnode_externalize_label(struct label *label, char *element_name, struct sbuf *sb, int *claimed) { LABEL_CHECK(label, MAGIC_VNODE); COUNTER_INC(vnode_externalize_label); return (0); } COUNTER_DECL(vnode_init_label); static void test_vnode_init_label(struct label *label) { LABEL_INIT(label, MAGIC_VNODE); COUNTER_INC(vnode_init_label); } COUNTER_DECL(vnode_internalize_label); static int test_vnode_internalize_label(struct label *label, char *element_name, char *element_data, int *claimed) { LABEL_CHECK(label, MAGIC_VNODE); COUNTER_INC(vnode_internalize_label); return (0); } COUNTER_DECL(vnode_relabel); static void test_vnode_relabel(struct ucred *cred, struct vnode *vp, struct label *vplabel, struct label *label) { LABEL_CHECK(cred->cr_label, MAGIC_CRED); LABEL_CHECK(vplabel, MAGIC_VNODE); LABEL_CHECK(label, MAGIC_VNODE); COUNTER_INC(vnode_relabel); } COUNTER_DECL(vnode_setlabel_extattr); static int test_vnode_setlabel_extattr(struct ucred *cred, struct vnode *vp, struct label *vplabel, struct label *intlabel) { LABEL_CHECK(cred->cr_label, MAGIC_CRED); LABEL_CHECK(vplabel, MAGIC_VNODE); LABEL_CHECK(intlabel, MAGIC_VNODE); COUNTER_INC(vnode_setlabel_extattr); return (0); } static struct mac_policy_ops test_ops = { .mpo_bpfdesc_check_receive = test_bpfdesc_check_receive, .mpo_bpfdesc_create = test_bpfdesc_create, .mpo_bpfdesc_create_mbuf = test_bpfdesc_create_mbuf, .mpo_bpfdesc_destroy_label = test_bpfdesc_destroy_label, .mpo_bpfdesc_init_label = test_bpfdesc_init_label, .mpo_cred_check_relabel = test_cred_check_relabel, .mpo_cred_check_visible = test_cred_check_visible, .mpo_cred_copy_label = test_cred_copy_label, .mpo_cred_destroy_label = test_cred_destroy_label, .mpo_cred_externalize_label = test_cred_externalize_label, .mpo_cred_init_label = test_cred_init_label, .mpo_cred_internalize_label = test_cred_internalize_label, .mpo_cred_relabel = test_cred_relabel, .mpo_devfs_create_device = test_devfs_create_device, .mpo_devfs_create_directory = test_devfs_create_directory, .mpo_devfs_create_symlink = test_devfs_create_symlink, .mpo_devfs_destroy_label = test_devfs_destroy_label, .mpo_devfs_init_label = test_devfs_init_label, .mpo_devfs_update = test_devfs_update, .mpo_devfs_vnode_associate = test_devfs_vnode_associate, .mpo_ifnet_check_relabel = test_ifnet_check_relabel, .mpo_ifnet_check_transmit = test_ifnet_check_transmit, .mpo_ifnet_copy_label = test_ifnet_copy_label, .mpo_ifnet_create = test_ifnet_create, .mpo_ifnet_create_mbuf = test_ifnet_create_mbuf, .mpo_ifnet_destroy_label = test_ifnet_destroy_label, .mpo_ifnet_externalize_label = test_ifnet_externalize_label, .mpo_ifnet_init_label = test_ifnet_init_label, .mpo_ifnet_internalize_label = test_ifnet_internalize_label, .mpo_ifnet_relabel = test_ifnet_relabel, .mpo_syncache_destroy_label = test_syncache_destroy_label, .mpo_syncache_init_label = test_syncache_init_label, .mpo_sysvmsg_destroy_label = test_sysvmsg_destroy_label, .mpo_sysvmsg_init_label = test_sysvmsg_init_label, .mpo_sysvmsq_destroy_label = test_sysvmsq_destroy_label, .mpo_sysvmsq_init_label = test_sysvmsq_init_label, .mpo_sysvsem_destroy_label = test_sysvsem_destroy_label, .mpo_sysvsem_init_label = test_sysvsem_init_label, .mpo_sysvshm_destroy_label = test_sysvshm_destroy_label, .mpo_sysvshm_init_label = test_sysvshm_init_label, .mpo_inpcb_check_deliver = test_inpcb_check_deliver, .mpo_inpcb_create = test_inpcb_create, .mpo_inpcb_create_mbuf = test_inpcb_create_mbuf, .mpo_inpcb_destroy_label = test_inpcb_destroy_label, .mpo_inpcb_init_label = test_inpcb_init_label, .mpo_inpcb_sosetlabel = test_inpcb_sosetlabel, .mpo_ipq_create = test_ipq_create, .mpo_ipq_destroy_label = test_ipq_destroy_label, .mpo_ipq_init_label = test_ipq_init_label, .mpo_ipq_match = test_ipq_match, .mpo_ipq_reassemble = test_ipq_reassemble, .mpo_ipq_update = test_ipq_update, .mpo_kenv_check_dump = test_kenv_check_dump, .mpo_kenv_check_get = test_kenv_check_get, .mpo_kenv_check_set = test_kenv_check_set, .mpo_kenv_check_unset = test_kenv_check_unset, .mpo_kld_check_load = test_kld_check_load, .mpo_kld_check_stat = test_kld_check_stat, .mpo_mbuf_copy_label = test_mbuf_copy_label, .mpo_mbuf_destroy_label = test_mbuf_destroy_label, .mpo_mbuf_init_label = test_mbuf_init_label, .mpo_mount_check_stat = test_mount_check_stat, .mpo_mount_create = test_mount_create, .mpo_mount_destroy_label = test_mount_destroy_label, .mpo_mount_init_label = test_mount_init_label, .mpo_netatalk_aarp_send = test_netatalk_aarp_send, .mpo_netinet_arp_send = test_netinet_arp_send, .mpo_netinet_fragment = test_netinet_fragment, .mpo_netinet_icmp_reply = test_netinet_icmp_reply, .mpo_netinet_icmp_replyinplace = test_netinet_icmp_replyinplace, .mpo_netinet_igmp_send = test_netinet_igmp_send, .mpo_netinet_tcp_reply = test_netinet_tcp_reply, .mpo_netinet6_nd6_send = test_netinet6_nd6_send, .mpo_pipe_check_ioctl = test_pipe_check_ioctl, .mpo_pipe_check_poll = test_pipe_check_poll, .mpo_pipe_check_read = test_pipe_check_read, .mpo_pipe_check_relabel = test_pipe_check_relabel, .mpo_pipe_check_stat = test_pipe_check_stat, .mpo_pipe_check_write = test_pipe_check_write, .mpo_pipe_copy_label = test_pipe_copy_label, .mpo_pipe_create = test_pipe_create, .mpo_pipe_destroy_label = test_pipe_destroy_label, .mpo_pipe_externalize_label = test_pipe_externalize_label, .mpo_pipe_init_label = test_pipe_init_label, .mpo_pipe_internalize_label = test_pipe_internalize_label, .mpo_pipe_relabel = test_pipe_relabel, - .mpo_posixsem_check_destroy = test_posixsem_check_destroy, .mpo_posixsem_check_getvalue = test_posixsem_check_getvalue, .mpo_posixsem_check_open = test_posixsem_check_open, .mpo_posixsem_check_post = test_posixsem_check_post, .mpo_posixsem_check_unlink = test_posixsem_check_unlink, .mpo_posixsem_check_wait = test_posixsem_check_wait, .mpo_posixsem_create = test_posixsem_create, .mpo_posixsem_destroy_label = test_posixsem_destroy_label, .mpo_posixsem_init_label = test_posixsem_init_label, .mpo_posixshm_check_mmap = test_posixshm_check_mmap, .mpo_posixshm_check_open = test_posixshm_check_open, .mpo_posixshm_check_stat = test_posixshm_check_stat, .mpo_posixshm_check_truncate = test_posixshm_check_truncate, .mpo_posixshm_check_unlink = test_posixshm_check_unlink, .mpo_posixshm_create = test_posixshm_create, .mpo_posixshm_destroy_label = test_posixshm_destroy_label, .mpo_posixshm_init_label = test_posixshm_init_label, .mpo_proc_check_debug = test_proc_check_debug, .mpo_proc_check_sched = test_proc_check_sched, .mpo_proc_check_setaudit = test_proc_check_setaudit, .mpo_proc_check_setaudit_addr = test_proc_check_setaudit_addr, .mpo_proc_check_setauid = test_proc_check_setauid, .mpo_proc_check_seteuid = test_proc_check_seteuid, .mpo_proc_check_setegid = test_proc_check_setegid, .mpo_proc_check_setgid = test_proc_check_setgid, .mpo_proc_check_setgroups = test_proc_check_setgroups, .mpo_proc_check_setregid = test_proc_check_setregid, .mpo_proc_check_setresgid = test_proc_check_setresgid, .mpo_proc_check_setresuid = test_proc_check_setresuid, .mpo_proc_check_setreuid = test_proc_check_setreuid, .mpo_proc_check_setuid = test_proc_check_setuid, .mpo_proc_check_signal = test_proc_check_signal, .mpo_proc_check_wait = test_proc_check_wait, .mpo_proc_create_init = test_proc_create_init, .mpo_proc_create_swapper = test_proc_create_swapper, .mpo_proc_destroy_label = test_proc_destroy_label, .mpo_proc_init_label = test_proc_init_label, .mpo_socket_check_accept = test_socket_check_accept, .mpo_socket_check_bind = test_socket_check_bind, .mpo_socket_check_connect = test_socket_check_connect, .mpo_socket_check_deliver = test_socket_check_deliver, .mpo_socket_check_listen = test_socket_check_listen, .mpo_socket_check_poll = test_socket_check_poll, .mpo_socket_check_receive = test_socket_check_receive, .mpo_socket_check_relabel = test_socket_check_relabel, .mpo_socket_check_send = test_socket_check_send, .mpo_socket_check_stat = test_socket_check_stat, .mpo_socket_check_visible = test_socket_check_visible, .mpo_socket_copy_label = test_socket_copy_label, .mpo_socket_create = test_socket_create, .mpo_socket_create_mbuf = test_socket_create_mbuf, .mpo_socket_destroy_label = test_socket_destroy_label, .mpo_socket_externalize_label = test_socket_externalize_label, .mpo_socket_init_label = test_socket_init_label, .mpo_socket_internalize_label = test_socket_internalize_label, .mpo_socket_newconn = test_socket_newconn, .mpo_socket_relabel = test_socket_relabel, .mpo_socketpeer_destroy_label = test_socketpeer_destroy_label, .mpo_socketpeer_externalize_label = test_socketpeer_externalize_label, .mpo_socketpeer_init_label = test_socketpeer_init_label, .mpo_socketpeer_set_from_mbuf = test_socketpeer_set_from_mbuf, .mpo_socketpeer_set_from_socket = test_socketpeer_set_from_socket, .mpo_syncache_create = test_syncache_create, .mpo_syncache_create_mbuf = test_syncache_create_mbuf, .mpo_system_check_acct = test_system_check_acct, .mpo_system_check_audit = test_system_check_audit, .mpo_system_check_auditctl = test_system_check_auditctl, .mpo_system_check_auditon = test_system_check_auditon, .mpo_system_check_reboot = test_system_check_reboot, .mpo_system_check_swapoff = test_system_check_swapoff, .mpo_system_check_swapon = test_system_check_swapon, .mpo_system_check_sysctl = test_system_check_sysctl, .mpo_vnode_check_access = test_vnode_check_access, .mpo_sysvmsg_cleanup = test_sysvmsg_cleanup, .mpo_sysvmsg_create = test_sysvmsg_create, .mpo_sysvmsq_check_msgmsq = test_sysvmsq_check_msgmsq, .mpo_sysvmsq_check_msgrcv = test_sysvmsq_check_msgrcv, .mpo_sysvmsq_check_msgrmid = test_sysvmsq_check_msgrmid, .mpo_sysvmsq_check_msqget = test_sysvmsq_check_msqget, .mpo_sysvmsq_check_msqsnd = test_sysvmsq_check_msqsnd, .mpo_sysvmsq_check_msqrcv = test_sysvmsq_check_msqrcv, .mpo_sysvmsq_check_msqctl = test_sysvmsq_check_msqctl, .mpo_sysvmsq_cleanup = test_sysvmsq_cleanup, .mpo_sysvmsq_create = test_sysvmsq_create, .mpo_sysvsem_check_semctl = test_sysvsem_check_semctl, .mpo_sysvsem_check_semget = test_sysvsem_check_semget, .mpo_sysvsem_check_semop = test_sysvsem_check_semop, .mpo_sysvsem_cleanup = test_sysvsem_cleanup, .mpo_sysvsem_create = test_sysvsem_create, .mpo_sysvshm_check_shmat = test_sysvshm_check_shmat, .mpo_sysvshm_check_shmctl = test_sysvshm_check_shmctl, .mpo_sysvshm_check_shmdt = test_sysvshm_check_shmdt, .mpo_sysvshm_check_shmget = test_sysvshm_check_shmget, .mpo_sysvshm_cleanup = test_sysvshm_cleanup, .mpo_sysvshm_create = test_sysvshm_create, .mpo_thread_userret = test_thread_userret, .mpo_vnode_associate_extattr = test_vnode_associate_extattr, .mpo_vnode_associate_singlelabel = test_vnode_associate_singlelabel, .mpo_vnode_check_chdir = test_vnode_check_chdir, .mpo_vnode_check_chroot = test_vnode_check_chroot, .mpo_vnode_check_create = test_vnode_check_create, .mpo_vnode_check_deleteacl = test_vnode_check_deleteacl, .mpo_vnode_check_deleteextattr = test_vnode_check_deleteextattr, .mpo_vnode_check_exec = test_vnode_check_exec, .mpo_vnode_check_getacl = test_vnode_check_getacl, .mpo_vnode_check_getextattr = test_vnode_check_getextattr, .mpo_vnode_check_link = test_vnode_check_link, .mpo_vnode_check_listextattr = test_vnode_check_listextattr, .mpo_vnode_check_lookup = test_vnode_check_lookup, .mpo_vnode_check_mmap = test_vnode_check_mmap, .mpo_vnode_check_open = test_vnode_check_open, .mpo_vnode_check_poll = test_vnode_check_poll, .mpo_vnode_check_read = test_vnode_check_read, .mpo_vnode_check_readdir = test_vnode_check_readdir, .mpo_vnode_check_readlink = test_vnode_check_readlink, .mpo_vnode_check_relabel = test_vnode_check_relabel, .mpo_vnode_check_rename_from = test_vnode_check_rename_from, .mpo_vnode_check_rename_to = test_vnode_check_rename_to, .mpo_vnode_check_revoke = test_vnode_check_revoke, .mpo_vnode_check_setacl = test_vnode_check_setacl, .mpo_vnode_check_setextattr = test_vnode_check_setextattr, .mpo_vnode_check_setflags = test_vnode_check_setflags, .mpo_vnode_check_setmode = test_vnode_check_setmode, .mpo_vnode_check_setowner = test_vnode_check_setowner, .mpo_vnode_check_setutimes = test_vnode_check_setutimes, .mpo_vnode_check_stat = test_vnode_check_stat, .mpo_vnode_check_unlink = test_vnode_check_unlink, .mpo_vnode_check_write = test_vnode_check_write, .mpo_vnode_copy_label = test_vnode_copy_label, .mpo_vnode_create_extattr = test_vnode_create_extattr, .mpo_vnode_destroy_label = test_vnode_destroy_label, .mpo_vnode_execve_transition = test_vnode_execve_transition, .mpo_vnode_execve_will_transition = test_vnode_execve_will_transition, .mpo_vnode_externalize_label = test_vnode_externalize_label, .mpo_vnode_init_label = test_vnode_init_label, .mpo_vnode_internalize_label = test_vnode_internalize_label, .mpo_vnode_relabel = test_vnode_relabel, .mpo_vnode_setlabel_extattr = test_vnode_setlabel_extattr, }; MAC_POLICY_SET(&test_ops, mac_test, "TrustedBSD MAC/Test", MPC_LOADTIME_FLAG_UNLOADOK | MPC_LOADTIME_FLAG_LABELMBUFS, &test_slot);