Index: head/sys/kern/sys_capability.c =================================================================== --- head/sys/kern/sys_capability.c (revision 286617) +++ head/sys/kern/sys_capability.c (revision 286618) @@ -1,627 +1,632 @@ /*- * Copyright (c) 2008-2011 Robert N. M. Watson * Copyright (c) 2010-2011 Jonathan Anderson * Copyright (c) 2012 FreeBSD Foundation * All rights reserved. * * This software was developed at the University of Cambridge Computer * Laboratory with support from a grant from Google, Inc. * * Portions of this software were developed by Pawel Jakub Dawidek under * sponsorship from the FreeBSD Foundation. * * 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 capability facility. * * Two kernel features are implemented here: capability mode, a sandboxed mode * of execution for processes, and capabilities, a refinement on file * descriptors that allows fine-grained control over operations on the file * descriptor. Collectively, these allow processes to run in the style of a * historic "capability system" in which they can use only resources * explicitly delegated to them. This model is enforced by restricting access * to global namespaces in capability mode. * * Capabilities wrap other file descriptor types, binding them to a constant * rights mask set when the capability is created. New capabilities may be * derived from existing capabilities, but only if they have the same or a * strict subset of the rights on the original capability. * * System calls permitted in capability mode are defined in capabilities.conf; * calls must be carefully audited for safety to ensure that they don't allow * escape from a sandbox. Some calls permit only a subset of operations in * capability mode -- for example, shm_open(2) is limited to creating * anonymous, rather than named, POSIX shared memory objects. */ #include __FBSDID("$FreeBSD$"); #include "opt_capsicum.h" #include "opt_ktrace.h" #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #ifdef CAPABILITY_MODE FEATURE(security_capability_mode, "Capsicum Capability Mode"); /* * System call to enter capability mode for the process. */ int sys_cap_enter(struct thread *td, struct cap_enter_args *uap) { struct ucred *newcred, *oldcred; struct proc *p; if (IN_CAPABILITY_MODE(td)) return (0); newcred = crget(); p = td->td_proc; PROC_LOCK(p); oldcred = crcopysafe(p, newcred); newcred->cr_flags |= CRED_FLAG_CAPMODE; proc_set_cred(p, newcred); PROC_UNLOCK(p); crfree(oldcred); return (0); } /* * System call to query whether the process is in capability mode. */ int sys_cap_getmode(struct thread *td, struct cap_getmode_args *uap) { u_int i; i = IN_CAPABILITY_MODE(td) ? 1 : 0; return (copyout(&i, uap->modep, sizeof(i))); } #else /* !CAPABILITY_MODE */ int sys_cap_enter(struct thread *td, struct cap_enter_args *uap) { return (ENOSYS); } int sys_cap_getmode(struct thread *td, struct cap_getmode_args *uap) { return (ENOSYS); } #endif /* CAPABILITY_MODE */ #ifdef CAPABILITIES FEATURE(security_capabilities, "Capsicum Capabilities"); MALLOC_DECLARE(M_FILECAPS); static inline int _cap_check(const cap_rights_t *havep, const cap_rights_t *needp, enum ktr_cap_fail_type type) { int i; for (i = 0; i < nitems(havep->cr_rights); i++) { if (!cap_rights_contains(havep, needp)) { #ifdef KTRACE if (KTRPOINT(curthread, KTR_CAPFAIL)) ktrcapfail(type, needp, havep); #endif return (ENOTCAPABLE); } } return (0); } /* * Test whether a capability grants the requested rights. */ int cap_check(const cap_rights_t *havep, const cap_rights_t *needp) { return (_cap_check(havep, needp, CAPFAIL_NOTCAPABLE)); } /* * Convert capability rights into VM access flags. */ u_char cap_rights_to_vmprot(cap_rights_t *havep) { u_char maxprot; maxprot = VM_PROT_NONE; if (cap_rights_is_set(havep, CAP_MMAP_R)) maxprot |= VM_PROT_READ; if (cap_rights_is_set(havep, CAP_MMAP_W)) maxprot |= VM_PROT_WRITE; if (cap_rights_is_set(havep, CAP_MMAP_X)) maxprot |= VM_PROT_EXECUTE; return (maxprot); } /* * Extract rights from a capability for monitoring purposes -- not for use in * any other way, as we want to keep all capability permission evaluation in * this one file. */ cap_rights_t * cap_rights_fde(struct filedescent *fde) { return (&fde->fde_rights); } cap_rights_t * cap_rights(struct filedesc *fdp, int fd) { return (cap_rights_fde(&fdp->fd_ofiles[fd])); } +int +kern_cap_rights_limit(struct thread *td, int fd, cap_rights_t *rights) +{ + struct filedesc *fdp; + int error; + + fdp = td->td_proc->p_fd; + FILEDESC_XLOCK(fdp); + if (fget_locked(fdp, fd) == NULL) { + FILEDESC_XUNLOCK(fdp); + return (EBADF); + } + error = _cap_check(cap_rights(fdp, fd), rights, CAPFAIL_INCREASE); + if (error == 0) { + fdp->fd_ofiles[fd].fde_rights = *rights; + if (!cap_rights_is_set(rights, CAP_IOCTL)) { + free(fdp->fd_ofiles[fd].fde_ioctls, M_FILECAPS); + fdp->fd_ofiles[fd].fde_ioctls = NULL; + fdp->fd_ofiles[fd].fde_nioctls = 0; + } + if (!cap_rights_is_set(rights, CAP_FCNTL)) + fdp->fd_ofiles[fd].fde_fcntls = 0; + } + FILEDESC_XUNLOCK(fdp); + return (error); +} + /* * System call to limit rights of the given capability. */ int sys_cap_rights_limit(struct thread *td, struct cap_rights_limit_args *uap) { - struct filedesc *fdp; cap_rights_t rights; - int error, fd, version; + int error, version; cap_rights_init(&rights); error = copyin(uap->rightsp, &rights, sizeof(rights.cr_rights[0])); if (error != 0) return (error); version = CAPVER(&rights); if (version != CAP_RIGHTS_VERSION_00) return (EINVAL); error = copyin(uap->rightsp, &rights, sizeof(rights.cr_rights[0]) * CAPARSIZE(&rights)); if (error != 0) return (error); /* Check for race. */ if (CAPVER(&rights) != version) return (EINVAL); if (!cap_rights_is_valid(&rights)) return (EINVAL); if (version != CAP_RIGHTS_VERSION) { rights.cr_rights[0] &= ~(0x3ULL << 62); rights.cr_rights[0] |= ((uint64_t)CAP_RIGHTS_VERSION << 62); } #ifdef KTRACE if (KTRPOINT(td, KTR_STRUCT)) ktrcaprights(&rights); #endif - fd = uap->fd; - - AUDIT_ARG_FD(fd); + AUDIT_ARG_FD(uap->fd); AUDIT_ARG_RIGHTS(&rights); - - fdp = td->td_proc->p_fd; - FILEDESC_XLOCK(fdp); - if (fget_locked(fdp, fd) == NULL) { - FILEDESC_XUNLOCK(fdp); - return (EBADF); - } - error = _cap_check(cap_rights(fdp, fd), &rights, CAPFAIL_INCREASE); - if (error == 0) { - fdp->fd_ofiles[fd].fde_rights = rights; - if (!cap_rights_is_set(&rights, CAP_IOCTL)) { - free(fdp->fd_ofiles[fd].fde_ioctls, M_FILECAPS); - fdp->fd_ofiles[fd].fde_ioctls = NULL; - fdp->fd_ofiles[fd].fde_nioctls = 0; - } - if (!cap_rights_is_set(&rights, CAP_FCNTL)) - fdp->fd_ofiles[fd].fde_fcntls = 0; - } - FILEDESC_XUNLOCK(fdp); - return (error); + return (kern_cap_rights_limit(td, uap->fd, &rights)); } /* * System call to query the rights mask associated with a capability. */ int sys___cap_rights_get(struct thread *td, struct __cap_rights_get_args *uap) { struct filedesc *fdp; cap_rights_t rights; int error, fd, i, n; if (uap->version != CAP_RIGHTS_VERSION_00) return (EINVAL); fd = uap->fd; AUDIT_ARG_FD(fd); fdp = td->td_proc->p_fd; FILEDESC_SLOCK(fdp); if (fget_locked(fdp, fd) == NULL) { FILEDESC_SUNLOCK(fdp); return (EBADF); } rights = *cap_rights(fdp, fd); FILEDESC_SUNLOCK(fdp); n = uap->version + 2; if (uap->version != CAPVER(&rights)) { /* * For older versions we need to check if the descriptor * doesn't contain rights not understood by the caller. * If it does, we have to return an error. */ for (i = n; i < CAPARSIZE(&rights); i++) { if ((rights.cr_rights[i] & ~(0x7FULL << 57)) != 0) return (EINVAL); } } error = copyout(&rights, uap->rightsp, sizeof(rights.cr_rights[0]) * n); #ifdef KTRACE if (error == 0 && KTRPOINT(td, KTR_STRUCT)) ktrcaprights(&rights); #endif return (error); } /* * Test whether a capability grants the given ioctl command. * If descriptor doesn't have CAP_IOCTL, then ioctls list is empty and * ENOTCAPABLE will be returned. */ int cap_ioctl_check(struct filedesc *fdp, int fd, u_long cmd) { u_long *cmds; ssize_t ncmds; long i; FILEDESC_LOCK_ASSERT(fdp); KASSERT(fd >= 0 && fd < fdp->fd_nfiles, ("%s: invalid fd=%d", __func__, fd)); ncmds = fdp->fd_ofiles[fd].fde_nioctls; if (ncmds == -1) return (0); cmds = fdp->fd_ofiles[fd].fde_ioctls; for (i = 0; i < ncmds; i++) { if (cmds[i] == cmd) return (0); } return (ENOTCAPABLE); } /* * Check if the current ioctls list can be replaced by the new one. */ static int cap_ioctl_limit_check(struct filedesc *fdp, int fd, const u_long *cmds, size_t ncmds) { u_long *ocmds; ssize_t oncmds; u_long i; long j; oncmds = fdp->fd_ofiles[fd].fde_nioctls; if (oncmds == -1) return (0); if (oncmds < (ssize_t)ncmds) return (ENOTCAPABLE); ocmds = fdp->fd_ofiles[fd].fde_ioctls; for (i = 0; i < ncmds; i++) { for (j = 0; j < oncmds; j++) { if (cmds[i] == ocmds[j]) break; } if (j == oncmds) return (ENOTCAPABLE); } return (0); } int kern_cap_ioctls_limit(struct thread *td, int fd, u_long *cmds, size_t ncmds) { struct filedesc *fdp; u_long *ocmds; int error; AUDIT_ARG_FD(fd); fdp = td->td_proc->p_fd; FILEDESC_XLOCK(fdp); if (fget_locked(fdp, fd) == NULL) { error = EBADF; goto out; } error = cap_ioctl_limit_check(fdp, fd, cmds, ncmds); if (error != 0) goto out; ocmds = fdp->fd_ofiles[fd].fde_ioctls; fdp->fd_ofiles[fd].fde_ioctls = cmds; fdp->fd_ofiles[fd].fde_nioctls = ncmds; cmds = ocmds; error = 0; out: FILEDESC_XUNLOCK(fdp); free(cmds, M_FILECAPS); return (error); } int sys_cap_ioctls_limit(struct thread *td, struct cap_ioctls_limit_args *uap) { u_long *cmds; size_t ncmds; int error; ncmds = uap->ncmds; if (ncmds > 256) /* XXX: Is 256 sane? */ return (EINVAL); if (ncmds == 0) { cmds = NULL; } else { cmds = malloc(sizeof(cmds[0]) * ncmds, M_FILECAPS, M_WAITOK); error = copyin(uap->cmds, cmds, sizeof(cmds[0]) * ncmds); if (error != 0) { free(cmds, M_FILECAPS); return (error); } } return (kern_cap_ioctls_limit(td, uap->fd, cmds, ncmds)); } int sys_cap_ioctls_get(struct thread *td, struct cap_ioctls_get_args *uap) { struct filedesc *fdp; struct filedescent *fdep; u_long *cmds; size_t maxcmds; int error, fd; fd = uap->fd; cmds = uap->cmds; maxcmds = uap->maxcmds; AUDIT_ARG_FD(fd); fdp = td->td_proc->p_fd; FILEDESC_SLOCK(fdp); if (fget_locked(fdp, fd) == NULL) { error = EBADF; goto out; } /* * If all ioctls are allowed (fde_nioctls == -1 && fde_ioctls == NULL) * the only sane thing we can do is to not populate the given array and * return CAP_IOCTLS_ALL. */ fdep = &fdp->fd_ofiles[fd]; if (cmds != NULL && fdep->fde_ioctls != NULL) { error = copyout(fdep->fde_ioctls, cmds, sizeof(cmds[0]) * MIN(fdep->fde_nioctls, maxcmds)); if (error != 0) goto out; } if (fdep->fde_nioctls == -1) td->td_retval[0] = CAP_IOCTLS_ALL; else td->td_retval[0] = fdep->fde_nioctls; error = 0; out: FILEDESC_SUNLOCK(fdp); return (error); } /* * Test whether a capability grants the given fcntl command. */ int cap_fcntl_check_fde(struct filedescent *fde, int cmd) { uint32_t fcntlcap; fcntlcap = (1 << cmd); KASSERT((CAP_FCNTL_ALL & fcntlcap) != 0, ("Unsupported fcntl=%d.", cmd)); if ((fde->fde_fcntls & fcntlcap) != 0) return (0); return (ENOTCAPABLE); } int cap_fcntl_check(struct filedesc *fdp, int fd, int cmd) { KASSERT(fd >= 0 && fd < fdp->fd_nfiles, ("%s: invalid fd=%d", __func__, fd)); return (cap_fcntl_check_fde(&fdp->fd_ofiles[fd], cmd)); } int sys_cap_fcntls_limit(struct thread *td, struct cap_fcntls_limit_args *uap) { struct filedesc *fdp; uint32_t fcntlrights; int fd; fd = uap->fd; fcntlrights = uap->fcntlrights; AUDIT_ARG_FD(fd); AUDIT_ARG_FCNTL_RIGHTS(fcntlrights); if ((fcntlrights & ~CAP_FCNTL_ALL) != 0) return (EINVAL); fdp = td->td_proc->p_fd; FILEDESC_XLOCK(fdp); if (fget_locked(fdp, fd) == NULL) { FILEDESC_XUNLOCK(fdp); return (EBADF); } if ((fcntlrights & ~fdp->fd_ofiles[fd].fde_fcntls) != 0) { FILEDESC_XUNLOCK(fdp); return (ENOTCAPABLE); } fdp->fd_ofiles[fd].fde_fcntls = fcntlrights; FILEDESC_XUNLOCK(fdp); return (0); } int sys_cap_fcntls_get(struct thread *td, struct cap_fcntls_get_args *uap) { struct filedesc *fdp; uint32_t rights; int fd; fd = uap->fd; AUDIT_ARG_FD(fd); fdp = td->td_proc->p_fd; FILEDESC_SLOCK(fdp); if (fget_locked(fdp, fd) == NULL) { FILEDESC_SUNLOCK(fdp); return (EBADF); } rights = fdp->fd_ofiles[fd].fde_fcntls; FILEDESC_SUNLOCK(fdp); return (copyout(&rights, uap->fcntlrightsp, sizeof(rights))); } #else /* !CAPABILITIES */ /* * Stub Capability functions for when options CAPABILITIES isn't compiled * into the kernel. */ int sys_cap_rights_limit(struct thread *td, struct cap_rights_limit_args *uap) { return (ENOSYS); } int sys___cap_rights_get(struct thread *td, struct __cap_rights_get_args *uap) { return (ENOSYS); } int sys_cap_ioctls_limit(struct thread *td, struct cap_ioctls_limit_args *uap) { return (ENOSYS); } int sys_cap_ioctls_get(struct thread *td, struct cap_ioctls_get_args *uap) { return (ENOSYS); } int sys_cap_fcntls_limit(struct thread *td, struct cap_fcntls_limit_args *uap) { return (ENOSYS); } int sys_cap_fcntls_get(struct thread *td, struct cap_fcntls_get_args *uap) { return (ENOSYS); } #endif /* CAPABILITIES */ Index: head/sys/sys/syscallsubr.h =================================================================== --- head/sys/sys/syscallsubr.h (revision 286617) +++ head/sys/sys/syscallsubr.h (revision 286618) @@ -1,261 +1,262 @@ /*- * Copyright (c) 2002 Ian Dowse. All rights reserved. * * 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. * * $FreeBSD$ */ #ifndef _SYS_SYSCALLSUBR_H_ #define _SYS_SYSCALLSUBR_H_ #include #include #include #include #include struct file; struct filecaps; enum idtype; struct itimerval; struct image_args; struct jail; struct kevent; struct kevent_copyops; struct kld_file_stat; struct ksiginfo; struct mbuf; struct msghdr; struct msqid_ds; struct pollfd; struct ogetdirentries_args; struct rlimit; struct rusage; union semun; struct sendfile_args; struct sockaddr; struct stat; struct thr_param; struct sched_param; struct __wrusage; int kern___getcwd(struct thread *td, char *buf, enum uio_seg bufseg, u_int buflen, u_int path_max); int kern_accept(struct thread *td, int s, struct sockaddr **name, socklen_t *namelen, struct file **fp); int kern_accept4(struct thread *td, int s, struct sockaddr **name, socklen_t *namelen, int flags, struct file **fp); int kern_accessat(struct thread *td, int fd, char *path, enum uio_seg pathseg, int flags, int mode); int kern_adjtime(struct thread *td, struct timeval *delta, struct timeval *olddelta); int kern_alternate_path(struct thread *td, const char *prefix, const char *path, enum uio_seg pathseg, char **pathbuf, int create, int dirfd); int kern_bindat(struct thread *td, int dirfd, int fd, struct sockaddr *sa); int kern_cap_ioctls_limit(struct thread *td, int fd, u_long *cmds, size_t ncmds); +int kern_cap_rights_limit(struct thread *td, int fd, cap_rights_t *rights); int kern_chdir(struct thread *td, char *path, enum uio_seg pathseg); int kern_clock_getcpuclockid2(struct thread *td, id_t id, int which, clockid_t *clk_id); int kern_clock_getres(struct thread *td, clockid_t clock_id, struct timespec *ts); int kern_clock_gettime(struct thread *td, clockid_t clock_id, struct timespec *ats); int kern_clock_settime(struct thread *td, clockid_t clock_id, struct timespec *ats); int kern_close(struct thread *td, int fd); int kern_connectat(struct thread *td, int dirfd, int fd, struct sockaddr *sa); int kern_dup(struct thread *td, u_int mode, int flags, int old, int new); int kern_execve(struct thread *td, struct image_args *args, struct mac *mac_p); int kern_fchmodat(struct thread *td, int fd, char *path, enum uio_seg pathseg, mode_t mode, int flag); int kern_fchownat(struct thread *td, int fd, char *path, enum uio_seg pathseg, int uid, int gid, int flag); int kern_fcntl(struct thread *td, int fd, int cmd, intptr_t arg); int kern_fcntl_freebsd(struct thread *td, int fd, int cmd, long arg); int kern_fhstat(struct thread *td, fhandle_t fh, struct stat *buf); int kern_fhstatfs(struct thread *td, fhandle_t fh, struct statfs *buf); int kern_fstat(struct thread *td, int fd, struct stat *sbp); int kern_fstatfs(struct thread *td, int fd, struct statfs *buf); int kern_ftruncate(struct thread *td, int fd, off_t length); int kern_futimes(struct thread *td, int fd, struct timeval *tptr, enum uio_seg tptrseg); int kern_futimens(struct thread *td, int fd, struct timespec *tptr, enum uio_seg tptrseg); int kern_getdirentries(struct thread *td, int fd, char *buf, u_int count, long *basep, ssize_t *residp, enum uio_seg bufseg); int kern_getfsstat(struct thread *td, struct statfs **buf, size_t bufsize, size_t *countp, enum uio_seg bufseg, int flags); int kern_getitimer(struct thread *, u_int, struct itimerval *); int kern_getppid(struct thread *); int kern_getpeername(struct thread *td, int fd, struct sockaddr **sa, socklen_t *alen); int kern_getrusage(struct thread *td, int who, struct rusage *rup); int kern_getsockname(struct thread *td, int fd, struct sockaddr **sa, socklen_t *alen); int kern_getsockopt(struct thread *td, int s, int level, int name, void *optval, enum uio_seg valseg, socklen_t *valsize); int kern_ioctl(struct thread *td, int fd, u_long com, caddr_t data); int kern_jail(struct thread *td, struct jail *j); int kern_jail_get(struct thread *td, struct uio *options, int flags); int kern_jail_set(struct thread *td, struct uio *options, int flags); int kern_kevent(struct thread *td, int fd, int nchanges, int nevents, struct kevent_copyops *k_ops, const struct timespec *timeout); int kern_kevent_fp(struct thread *td, struct file *fp, int nchanges, int nevents, struct kevent_copyops *k_ops, const struct timespec *timeout); int kern_kqueue(struct thread *td, int flags, struct filecaps *fcaps); int kern_kldload(struct thread *td, const char *file, int *fileid); int kern_kldstat(struct thread *td, int fileid, struct kld_file_stat *stat); int kern_kldunload(struct thread *td, int fileid, int flags); int kern_linkat(struct thread *td, int fd1, int fd2, char *path1, char *path2, enum uio_seg segflg, int follow); int kern_lutimes(struct thread *td, char *path, enum uio_seg pathseg, struct timeval *tptr, enum uio_seg tptrseg); int kern_mkdirat(struct thread *td, int fd, char *path, enum uio_seg segflg, int mode); int kern_mkfifoat(struct thread *td, int fd, char *path, enum uio_seg pathseg, int mode); int kern_mknodat(struct thread *td, int fd, char *path, enum uio_seg pathseg, int mode, int dev); int kern_msgctl(struct thread *, int, int, struct msqid_ds *); int kern_msgsnd(struct thread *, int, const void *, size_t, int, long); int kern_msgrcv(struct thread *, int, void *, size_t, long, int, long *); int kern_nanosleep(struct thread *td, struct timespec *rqt, struct timespec *rmt); int kern_ogetdirentries(struct thread *td, struct ogetdirentries_args *uap, long *ploff); int kern_openat(struct thread *td, int fd, char *path, enum uio_seg pathseg, int flags, int mode); int kern_pathconf(struct thread *td, char *path, enum uio_seg pathseg, int name, u_long flags); int kern_pipe(struct thread *td, int fildes[2], int flags, struct filecaps *fcaps1, struct filecaps *fcaps2); int kern_poll(struct thread *td, struct pollfd *fds, u_int nfds, struct timespec *tsp, sigset_t *uset); int kern_posix_fadvise(struct thread *td, int fd, off_t offset, off_t len, int advice); int kern_posix_fallocate(struct thread *td, int fd, off_t offset, off_t len); int kern_procctl(struct thread *td, enum idtype idtype, id_t id, int com, void *data); int kern_preadv(struct thread *td, int fd, struct uio *auio, off_t offset); int kern_pselect(struct thread *td, int nd, fd_set *in, fd_set *ou, fd_set *ex, struct timeval *tvp, sigset_t *uset, int abi_nfdbits); int kern_ptrace(struct thread *td, int req, pid_t pid, void *addr, int data); int kern_pwritev(struct thread *td, int fd, struct uio *auio, off_t offset); int kern_readlinkat(struct thread *td, int fd, char *path, enum uio_seg pathseg, char *buf, enum uio_seg bufseg, size_t count); int kern_readv(struct thread *td, int fd, struct uio *auio); int kern_recvit(struct thread *td, int s, struct msghdr *mp, enum uio_seg fromseg, struct mbuf **controlp); int kern_renameat(struct thread *td, int oldfd, char *old, int newfd, char *new, enum uio_seg pathseg); int kern_rmdirat(struct thread *td, int fd, char *path, enum uio_seg pathseg); int kern_sched_getparam(struct thread *td, struct thread *targettd, struct sched_param *param); int kern_sched_getscheduler(struct thread *td, struct thread *targettd, int *policy); int kern_sched_setparam(struct thread *td, struct thread *targettd, struct sched_param *param); int kern_sched_setscheduler(struct thread *td, struct thread *targettd, int policy, struct sched_param *param); int kern_sched_rr_get_interval(struct thread *td, pid_t pid, struct timespec *ts); int kern_sched_rr_get_interval_td(struct thread *td, struct thread *targettd, struct timespec *ts); int kern_semctl(struct thread *td, int semid, int semnum, int cmd, union semun *arg, register_t *rval); int kern_select(struct thread *td, int nd, fd_set *fd_in, fd_set *fd_ou, fd_set *fd_ex, struct timeval *tvp, int abi_nfdbits); int kern_sendfile(struct thread *td, struct sendfile_args *uap, struct uio *hdr_uio, struct uio *trl_uio, int compat); int kern_sendit(struct thread *td, int s, struct msghdr *mp, int flags, struct mbuf *control, enum uio_seg segflg); int kern_setgroups(struct thread *td, u_int ngrp, gid_t *groups); int kern_setitimer(struct thread *, u_int, struct itimerval *, struct itimerval *); int kern_setrlimit(struct thread *, u_int, struct rlimit *); int kern_setsockopt(struct thread *td, int s, int level, int name, void *optval, enum uio_seg valseg, socklen_t valsize); int kern_settimeofday(struct thread *td, struct timeval *tv, struct timezone *tzp); int kern_shm_open(struct thread *td, const char *userpath, int flags, mode_t mode, struct filecaps *fcaps); int kern_shmat(struct thread *td, int shmid, const void *shmaddr, int shmflg); int kern_shmctl(struct thread *td, int shmid, int cmd, void *buf, size_t *bufsz); int kern_sigaction(struct thread *td, int sig, const struct sigaction *act, struct sigaction *oact, int flags); int kern_sigaltstack(struct thread *td, stack_t *ss, stack_t *oss); int kern_sigprocmask(struct thread *td, int how, sigset_t *set, sigset_t *oset, int flags); int kern_sigsuspend(struct thread *td, sigset_t mask); int kern_sigtimedwait(struct thread *td, sigset_t waitset, struct ksiginfo *ksi, struct timespec *timeout); int kern_statat(struct thread *td, int flag, int fd, char *path, enum uio_seg pathseg, struct stat *sbp, void (*hook)(struct vnode *vp, struct stat *sbp)); int kern_statfs(struct thread *td, char *path, enum uio_seg pathseg, struct statfs *buf); int kern_symlinkat(struct thread *td, char *path1, int fd, char *path2, enum uio_seg segflg); int kern_ktimer_create(struct thread *td, clockid_t clock_id, struct sigevent *evp, int *timerid, int preset_id); int kern_ktimer_delete(struct thread *, int); int kern_ktimer_settime(struct thread *td, int timer_id, int flags, struct itimerspec *val, struct itimerspec *oval); int kern_ktimer_gettime(struct thread *td, int timer_id, struct itimerspec *val); int kern_ktimer_getoverrun(struct thread *td, int timer_id); int kern_thr_alloc(struct proc *, int pages, struct thread **); int kern_thr_exit(struct thread *td); int kern_thr_new(struct thread *td, struct thr_param *param); int kern_thr_suspend(struct thread *td, struct timespec *tsp); int kern_truncate(struct thread *td, char *path, enum uio_seg pathseg, off_t length); int kern_unlinkat(struct thread *td, int fd, char *path, enum uio_seg pathseg, ino_t oldinum); int kern_utimesat(struct thread *td, int fd, char *path, enum uio_seg pathseg, struct timeval *tptr, enum uio_seg tptrseg); int kern_utimensat(struct thread *td, int fd, char *path, enum uio_seg pathseg, struct timespec *tptr, enum uio_seg tptrseg, int follow); int kern_wait(struct thread *td, pid_t pid, int *status, int options, struct rusage *rup); int kern_wait6(struct thread *td, enum idtype idtype, id_t id, int *status, int options, struct __wrusage *wrup, siginfo_t *sip); int kern_writev(struct thread *td, int fd, struct uio *auio); int kern_socketpair(struct thread *td, int domain, int type, int protocol, int *rsv); /* flags for kern_sigaction */ #define KSA_OSIGSET 0x0001 /* uses osigact_t */ #define KSA_FREEBSD4 0x0002 /* uses ucontext4 */ #endif /* !_SYS_SYSCALLSUBR_H_ */