diff --git a/sys/kern/vfs_extattr.c b/sys/kern/vfs_extattr.c index e178589067c1..dc1bbb58644b 100644 --- a/sys/kern/vfs_extattr.c +++ b/sys/kern/vfs_extattr.c @@ -1,852 +1,853 @@ /*- * SPDX-License-Identifier: BSD-2-Clause * * Copyright (c) 1999-2001 Robert N. M. Watson * All rights reserved. * * This software was developed by Robert Watson for the TrustedBSD Project. * * 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 #include #include #include #include #include #include #include #include #include #include #include #include #include #include +#include #include #include static int user_extattr_set_path(struct thread *td, const char *path, int attrnamespace, const char *attrname, void *data, size_t nbytes, int follow); static int user_extattr_get_path(struct thread *td, const char *path, int attrnamespace, const char *attrname, void *data, size_t nbytes, int follow); static int user_extattr_delete_path(struct thread *td, const char *path, int attrnamespace, const char *attrname, int follow); static int user_extattr_list_path(struct thread *td, const char *path, int attrnamespace, void *data, size_t nbytes, int follow); /* * Syscall to push extended attribute configuration information into the VFS. * Accepts a path, which it converts to a mountpoint, as well as a command * (int cmd), and attribute name and misc data. * * Currently this is used only by UFS1 extended attributes. */ #ifndef _SYS_SYSPROTO_H_ struct extattrctl_args { const char *path; int cmd; const char *filename; int attrnamespace; const char *attrname; }; #endif int sys_extattrctl(struct thread *td, struct extattrctl_args *uap) { struct vnode *filename_vp; struct nameidata nd; struct mount *mp, *mp_writable; char attrname[EXTATTR_MAXNAMELEN + 1]; int error; AUDIT_ARG_CMD(uap->cmd); AUDIT_ARG_VALUE(uap->attrnamespace); /* * uap->attrname is not always defined. We check again later when we * invoke the VFS call so as to pass in NULL there if needed. */ if (uap->attrname != NULL) { error = copyinstr(uap->attrname, attrname, sizeof(attrname), NULL); if (error) return (error); } AUDIT_ARG_TEXT(attrname); mp = NULL; filename_vp = NULL; if (uap->filename != NULL) { NDINIT(&nd, LOOKUP, FOLLOW | AUDITVNODE2, UIO_USERSPACE, uap->filename); error = namei(&nd); if (error) return (error); filename_vp = nd.ni_vp; NDFREE_PNBUF(&nd); } /* uap->path is always defined. */ NDINIT(&nd, LOOKUP, FOLLOW | LOCKLEAF | AUDITVNODE1, UIO_USERSPACE, uap->path); error = namei(&nd); if (error) goto out; mp = nd.ni_vp->v_mount; error = vfs_busy(mp, 0); if (error) { vput(nd.ni_vp); NDFREE_PNBUF(&nd); mp = NULL; goto out; } VOP_UNLOCK(nd.ni_vp); error = vn_start_write(nd.ni_vp, &mp_writable, V_WAIT | V_PCATCH); vrele(nd.ni_vp); NDFREE_PNBUF(&nd); if (error) goto out; if (filename_vp != NULL) { /* * uap->filename is not always defined. If it is, * grab a vnode lock, which VFS_EXTATTRCTL() will * later release. */ error = vn_lock(filename_vp, LK_EXCLUSIVE); if (error) { vn_finished_write(mp_writable); goto out; } } error = VFS_EXTATTRCTL(mp, uap->cmd, filename_vp, uap->attrnamespace, uap->attrname != NULL ? attrname : NULL); vn_finished_write(mp_writable); out: if (mp != NULL) vfs_unbusy(mp); /* * VFS_EXTATTRCTL will have unlocked, but not de-ref'd, filename_vp, * so vrele it if it is defined. */ if (filename_vp != NULL) vrele(filename_vp); return (error); } /*- * Set a named extended attribute on a file or directory * * Arguments: unlocked vnode "vp", attribute namespace "attrnamespace", * kernelspace string pointer "attrname", userspace buffer * pointer "data", buffer length "nbytes", thread "td". * Returns: 0 on success, an error number otherwise * Locks: none * References: vp must be a valid reference for the duration of the call */ static int extattr_set_vp(struct vnode *vp, int attrnamespace, const char *attrname, void *data, size_t nbytes, struct thread *td) { struct mount *mp; struct uio auio; struct iovec aiov; ssize_t cnt; int error; if (nbytes > IOSIZE_MAX) return (EINVAL); error = vn_start_write(vp, &mp, V_WAIT | V_PCATCH); if (error) return (error); vn_lock(vp, LK_EXCLUSIVE | LK_RETRY); aiov.iov_base = data; aiov.iov_len = nbytes; auio.uio_iov = &aiov; auio.uio_iovcnt = 1; auio.uio_offset = 0; auio.uio_resid = nbytes; auio.uio_rw = UIO_WRITE; auio.uio_segflg = UIO_USERSPACE; auio.uio_td = td; cnt = nbytes; #ifdef MAC error = mac_vnode_check_setextattr(td->td_ucred, vp, attrnamespace, attrname); if (error) goto done; #endif error = VOP_SETEXTATTR(vp, attrnamespace, attrname, &auio, td->td_ucred, td); cnt -= auio.uio_resid; td->td_retval[0] = cnt; #ifdef MAC done: #endif VOP_UNLOCK(vp); vn_finished_write(mp); return (error); } #ifndef _SYS_SYSPROTO_H_ struct extattr_set_fd_args { int fd; int attrnamespace; const char *attrname; void *data; size_t nbytes; }; #endif int sys_extattr_set_fd(struct thread *td, struct extattr_set_fd_args *uap) { char attrname[EXTATTR_MAXNAMELEN + 1]; int error; error = copyinstr(uap->attrname, attrname, sizeof(attrname), NULL); if (error) return (error); return (kern_extattr_set_fd(td, uap->fd, uap->attrnamespace, attrname, uap->data, uap->nbytes)); } int kern_extattr_set_fd(struct thread *td, int fd, int attrnamespace, const char *attrname, void *data, size_t nbytes) { struct file *fp; cap_rights_t rights; int error; AUDIT_ARG_FD(fd); AUDIT_ARG_VALUE(attrnamespace); AUDIT_ARG_TEXT(attrname); error = getvnode_path(td, fd, cap_rights_init_one(&rights, CAP_EXTATTR_SET), &fp); if (error) return (error); error = extattr_set_vp(fp->f_vnode, attrnamespace, attrname, data, nbytes, td); fdrop(fp, td); return (error); } #ifndef _SYS_SYSPROTO_H_ struct extattr_set_file_args { const char *path; int attrnamespace; const char *attrname; void *data; size_t nbytes; }; #endif int sys_extattr_set_file(struct thread *td, struct extattr_set_file_args *uap) { return (user_extattr_set_path(td, uap->path, uap->attrnamespace, uap->attrname, uap->data, uap->nbytes, FOLLOW)); } #ifndef _SYS_SYSPROTO_H_ struct extattr_set_link_args { const char *path; int attrnamespace; const char *attrname; void *data; size_t nbytes; }; #endif int sys_extattr_set_link(struct thread *td, struct extattr_set_link_args *uap) { return (user_extattr_set_path(td, uap->path, uap->attrnamespace, uap->attrname, uap->data, uap->nbytes, NOFOLLOW)); } static int user_extattr_set_path(struct thread *td, const char *path, int attrnamespace, const char *uattrname, void *data, size_t nbytes, int follow) { char attrname[EXTATTR_MAXNAMELEN + 1]; int error; error = copyinstr(uattrname, attrname, sizeof(attrname), NULL); if (error) return (error); return (kern_extattr_set_path(td, path, attrnamespace, attrname, data, nbytes, follow, UIO_USERSPACE)); } int kern_extattr_set_path(struct thread *td, const char *path, int attrnamespace, const char *attrname, void *data, size_t nbytes, int follow, enum uio_seg pathseg) { struct nameidata nd; int error; AUDIT_ARG_VALUE(attrnamespace); AUDIT_ARG_TEXT(attrname); NDINIT(&nd, LOOKUP, follow | AUDITVNODE1, pathseg, path); error = namei(&nd); if (error) return (error); NDFREE_PNBUF(&nd); error = extattr_set_vp(nd.ni_vp, attrnamespace, attrname, data, nbytes, td); vrele(nd.ni_vp); return (error); } /*- * Get a named extended attribute on a file or directory * * Arguments: unlocked vnode "vp", attribute namespace "attrnamespace", * kernelspace string pointer "attrname", userspace buffer * pointer "data", buffer length "nbytes", thread "td". * Returns: 0 on success, an error number otherwise * Locks: none * References: vp must be a valid reference for the duration of the call */ static int extattr_get_vp(struct vnode *vp, int attrnamespace, const char *attrname, void *data, size_t nbytes, struct thread *td) { struct uio auio, *auiop; struct iovec aiov; ssize_t cnt; size_t size, *sizep; int error; if (nbytes > IOSIZE_MAX) return (EINVAL); vn_lock(vp, LK_SHARED | LK_RETRY); /* * Slightly unusual semantics: if the user provides a NULL data * pointer, they don't want to receive the data, just the maximum * read length. */ auiop = NULL; sizep = NULL; cnt = 0; if (data != NULL) { aiov.iov_base = data; aiov.iov_len = nbytes; auio.uio_iov = &aiov; auio.uio_iovcnt = 1; auio.uio_offset = 0; auio.uio_resid = nbytes; auio.uio_rw = UIO_READ; auio.uio_segflg = UIO_USERSPACE; auio.uio_td = td; auiop = &auio; cnt = nbytes; } else sizep = &size; #ifdef MAC error = mac_vnode_check_getextattr(td->td_ucred, vp, attrnamespace, attrname); if (error) goto done; #endif error = VOP_GETEXTATTR(vp, attrnamespace, attrname, auiop, sizep, td->td_ucred, td); if (auiop != NULL) { cnt -= auio.uio_resid; td->td_retval[0] = cnt; } else td->td_retval[0] = size; #ifdef MAC done: #endif VOP_UNLOCK(vp); return (error); } #ifndef _SYS_SYSPROTO_H_ struct extattr_get_fd_args { int fd; int attrnamespace; const char *attrname; void *data; size_t nbytes; }; #endif int sys_extattr_get_fd(struct thread *td, struct extattr_get_fd_args *uap) { char attrname[EXTATTR_MAXNAMELEN + 1]; int error; error = copyinstr(uap->attrname, attrname, sizeof(attrname), NULL); if (error) return (error); return (kern_extattr_get_fd(td, uap->fd, uap->attrnamespace, attrname, uap->data, uap->nbytes)); } int kern_extattr_get_fd(struct thread *td, int fd, int attrnamespace, const char *attrname, void *data, size_t nbytes) { struct file *fp; cap_rights_t rights; int error; AUDIT_ARG_FD(fd); AUDIT_ARG_VALUE(attrnamespace); AUDIT_ARG_TEXT(attrname); error = getvnode_path(td, fd, cap_rights_init_one(&rights, CAP_EXTATTR_GET), &fp); if (error) return (error); error = extattr_get_vp(fp->f_vnode, attrnamespace, attrname, data, nbytes, td); fdrop(fp, td); return (error); } #ifndef _SYS_SYSPROTO_H_ struct extattr_get_file_args { const char *path; int attrnamespace; const char *attrname; void *data; size_t nbytes; }; #endif int sys_extattr_get_file(struct thread *td, struct extattr_get_file_args *uap) { return (user_extattr_get_path(td, uap->path, uap->attrnamespace, uap->attrname, uap->data, uap->nbytes, FOLLOW)); } #ifndef _SYS_SYSPROTO_H_ struct extattr_get_link_args { const char *path; int attrnamespace; const char *attrname; void *data; size_t nbytes; }; #endif int sys_extattr_get_link(struct thread *td, struct extattr_get_link_args *uap) { return (user_extattr_get_path(td, uap->path, uap->attrnamespace, uap->attrname, uap->data, uap->nbytes, NOFOLLOW)); } static int user_extattr_get_path(struct thread *td, const char *path, int attrnamespace, const char *uattrname, void *data, size_t nbytes, int follow) { char attrname[EXTATTR_MAXNAMELEN + 1]; int error; error = copyinstr(uattrname, attrname, sizeof(attrname), NULL); if (error) return (error); return (kern_extattr_get_path(td, path, attrnamespace, attrname, data, nbytes, follow, UIO_USERSPACE)); } int kern_extattr_get_path(struct thread *td, const char *path, int attrnamespace, const char *attrname, void *data, size_t nbytes, int follow, enum uio_seg pathseg) { struct nameidata nd; int error; AUDIT_ARG_VALUE(attrnamespace); AUDIT_ARG_TEXT(attrname); NDINIT(&nd, LOOKUP, follow | AUDITVNODE1, pathseg, path); error = namei(&nd); if (error) return (error); NDFREE_PNBUF(&nd); error = extattr_get_vp(nd.ni_vp, attrnamespace, attrname, data, nbytes, td); vrele(nd.ni_vp); return (error); } /* * extattr_delete_vp(): Delete a named extended attribute on a file or * directory * * Arguments: unlocked vnode "vp", attribute namespace "attrnamespace", * kernelspace string pointer "attrname", proc "p" * Returns: 0 on success, an error number otherwise * Locks: none * References: vp must be a valid reference for the duration of the call */ static int extattr_delete_vp(struct vnode *vp, int attrnamespace, const char *attrname, struct thread *td) { struct mount *mp; int error; error = vn_start_write(vp, &mp, V_WAIT | V_PCATCH); if (error) return (error); vn_lock(vp, LK_EXCLUSIVE | LK_RETRY); #ifdef MAC error = mac_vnode_check_deleteextattr(td->td_ucred, vp, attrnamespace, attrname); if (error) goto done; #endif error = VOP_DELETEEXTATTR(vp, attrnamespace, attrname, td->td_ucred, td); if (error == EOPNOTSUPP) error = VOP_SETEXTATTR(vp, attrnamespace, attrname, NULL, td->td_ucred, td); #ifdef MAC done: #endif VOP_UNLOCK(vp); vn_finished_write(mp); return (error); } #ifndef _SYS_SYSPROTO_H_ struct extattr_delete_fd_args { int fd; int attrnamespace; const char *attrname; }; #endif int sys_extattr_delete_fd(struct thread *td, struct extattr_delete_fd_args *uap) { char attrname[EXTATTR_MAXNAMELEN + 1]; int error; error = copyinstr(uap->attrname, attrname, sizeof(attrname), NULL); if (error) return (error); return (kern_extattr_delete_fd(td, uap->fd, uap->attrnamespace, attrname)); } int kern_extattr_delete_fd(struct thread *td, int fd, int attrnamespace, const char *attrname) { struct file *fp; cap_rights_t rights; int error; AUDIT_ARG_FD(fd); AUDIT_ARG_VALUE(attrnamespace); AUDIT_ARG_TEXT(attrname); error = getvnode_path(td, fd, cap_rights_init_one(&rights, CAP_EXTATTR_DELETE), &fp); if (error) return (error); error = extattr_delete_vp(fp->f_vnode, attrnamespace, attrname, td); fdrop(fp, td); return (error); } #ifndef _SYS_SYSPROTO_H_ struct extattr_delete_file_args { const char *path; int attrnamespace; const char *attrname; }; #endif int sys_extattr_delete_file(struct thread *td, struct extattr_delete_file_args *uap) { return (user_extattr_delete_path(td, uap->path, uap->attrnamespace, uap->attrname, FOLLOW)); } #ifndef _SYS_SYSPROTO_H_ struct extattr_delete_link_args { const char *path; int attrnamespace; const char *attrname; }; #endif int sys_extattr_delete_link(struct thread *td, struct extattr_delete_link_args *uap) { return (user_extattr_delete_path(td, uap->path, uap->attrnamespace, uap->attrname, NOFOLLOW)); } int user_extattr_delete_path(struct thread *td, const char *path, int attrnamespace, const char *uattrname, int follow) { char attrname[EXTATTR_MAXNAMELEN + 1]; int error; error = copyinstr(uattrname, attrname, sizeof(attrname), NULL); if (error) return(error); return (kern_extattr_delete_path(td, path, attrnamespace, attrname, follow, UIO_USERSPACE)); } int kern_extattr_delete_path(struct thread *td, const char *path, int attrnamespace, const char *attrname, int follow, enum uio_seg pathseg) { struct nameidata nd; int error; AUDIT_ARG_VALUE(attrnamespace); AUDIT_ARG_TEXT(attrname); NDINIT(&nd, LOOKUP, follow | AUDITVNODE1, pathseg, path); error = namei(&nd); if (error) return(error); NDFREE_PNBUF(&nd); error = extattr_delete_vp(nd.ni_vp, attrnamespace, attrname, td); vrele(nd.ni_vp); return(error); } /*- * Retrieve a list of extended attributes on a file or directory. * * Arguments: unlocked vnode "vp", attribute namespace 'attrnamespace", * userspace buffer pointer "data", buffer length "nbytes", * thread "td". * Returns: 0 on success, an error number otherwise * Locks: none * References: vp must be a valid reference for the duration of the call */ static int extattr_list_vp(struct vnode *vp, int attrnamespace, struct uio *auiop, struct thread *td) { size_t size, *sizep; ssize_t cnt; int error; sizep = NULL; cnt = 0; if (auiop != NULL) { if (auiop->uio_resid > IOSIZE_MAX) return (EINVAL); cnt = auiop->uio_resid; } else sizep = &size; vn_lock(vp, LK_SHARED | LK_RETRY); #ifdef MAC error = mac_vnode_check_listextattr(td->td_ucred, vp, attrnamespace); if (error) { VOP_UNLOCK(vp); return (error); } #endif error = VOP_LISTEXTATTR(vp, attrnamespace, auiop, sizep, td->td_ucred, td); VOP_UNLOCK(vp); if (auiop != NULL) { cnt -= auiop->uio_resid; td->td_retval[0] = cnt; } else td->td_retval[0] = size; return (error); } #ifndef _SYS_SYSPROTO_H_ struct extattr_list_fd_args { int fd; int attrnamespace; void *data; size_t nbytes; }; #endif int sys_extattr_list_fd(struct thread *td, struct extattr_list_fd_args *uap) { struct uio auio, *auiop; struct iovec aiov; if (uap->data != NULL) { aiov.iov_base = uap->data; aiov.iov_len = uap->nbytes; auio.uio_iov = &aiov; auio.uio_iovcnt = 1; auio.uio_offset = 0; auio.uio_resid = uap->nbytes; auio.uio_rw = UIO_READ; auio.uio_segflg = UIO_USERSPACE; auio.uio_td = td; auiop = &auio; } else auiop = NULL; return (kern_extattr_list_fd(td, uap->fd, uap->attrnamespace, auiop)); } int kern_extattr_list_fd(struct thread *td, int fd, int attrnamespace, struct uio *auiop) { struct file *fp; cap_rights_t rights; int error; AUDIT_ARG_FD(fd); AUDIT_ARG_VALUE(attrnamespace); error = getvnode_path(td, fd, cap_rights_init_one(&rights, CAP_EXTATTR_LIST), &fp); if (error) return (error); error = extattr_list_vp(fp->f_vnode, attrnamespace, auiop, td); fdrop(fp, td); return (error); } #ifndef _SYS_SYSPROTO_H_ struct extattr_list_file_args { const char *path; int attrnamespace; void *data; size_t nbytes; } #endif int sys_extattr_list_file(struct thread *td, struct extattr_list_file_args *uap) { return (user_extattr_list_path(td, uap->path, uap->attrnamespace, uap->data, uap->nbytes, FOLLOW)); } #ifndef _SYS_SYSPROTO_H_ struct extattr_list_link_args { const char *path; int attrnamespace; void *data; size_t nbytes; }; #endif int sys_extattr_list_link(struct thread *td, struct extattr_list_link_args *uap) { return (user_extattr_list_path(td, uap->path, uap->attrnamespace, uap->data, uap->nbytes, NOFOLLOW)); } static int user_extattr_list_path(struct thread *td, const char *path, int attrnamespace, void *data, size_t nbytes, int follow) { struct uio auio, *auiop; struct iovec aiov; if (data != NULL) { aiov.iov_base = data; aiov.iov_len = nbytes; auio.uio_iov = &aiov; auio.uio_iovcnt = 1; auio.uio_offset = 0; auio.uio_resid = nbytes; auio.uio_rw = UIO_READ; auio.uio_segflg = UIO_USERSPACE; auio.uio_td = td; auiop = &auio; } else auiop = NULL; return (kern_extattr_list_path(td, path, attrnamespace, auiop, follow, UIO_USERSPACE)); } int kern_extattr_list_path(struct thread *td, const char *path, int attrnamespace, struct uio *auiop, int follow, enum uio_seg pathseg) { struct nameidata nd; int error; AUDIT_ARG_VALUE(attrnamespace); NDINIT(&nd, LOOKUP, follow | AUDITVNODE1, pathseg, path); error = namei(&nd); if (error) return (error); NDFREE_PNBUF(&nd); error = extattr_list_vp(nd.ni_vp, attrnamespace, auiop, td); vrele(nd.ni_vp); return (error); } diff --git a/sys/sys/extattr.h b/sys/sys/extattr.h index a6689c869c0c..a16ef238656f 100644 --- a/sys/sys/extattr.h +++ b/sys/sys/extattr.h @@ -1,127 +1,105 @@ /*- * SPDX-License-Identifier: BSD-2-Clause * * Copyright (c) 1999-2001 Robert N. M. Watson * All rights reserved. * * This software was developed by Robert Watson for the TrustedBSD Project. * * 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. */ /* * Developed by the TrustedBSD Project. * Support for extended filesystem attributes. */ #ifndef _SYS_EXTATTR_H_ #define _SYS_EXTATTR_H_ /* * Defined name spaces for extended attributes. Numeric constants are passed * via system calls, but a user-friendly string is also defined. */ #define EXTATTR_NAMESPACE_EMPTY 0x00000000 #define EXTATTR_NAMESPACE_EMPTY_STRING "empty" #define EXTATTR_NAMESPACE_USER 0x00000001 #define EXTATTR_NAMESPACE_USER_STRING "user" #define EXTATTR_NAMESPACE_SYSTEM 0x00000002 #define EXTATTR_NAMESPACE_SYSTEM_STRING "system" /* * The following macro is designed to initialize an array that maps * extended-attribute namespace values to their names, e.g.: * * char *extattr_namespace_names[] = EXTATTR_NAMESPACE_NAMES; */ #define EXTATTR_NAMESPACE_NAMES { \ EXTATTR_NAMESPACE_EMPTY_STRING, \ EXTATTR_NAMESPACE_USER_STRING, \ EXTATTR_NAMESPACE_SYSTEM_STRING } #define EXTATTR_MAXNAMELEN NAME_MAX #ifdef _KERNEL #include -enum uio_seg; -struct uio; struct thread; struct ucred; struct vnode; int extattr_check_cred(struct vnode *vp, int attrnamespace, struct ucred *cred, struct thread *td, accmode_t accmode); -int kern_extattr_set_path(struct thread *td, const char *path, - int attrnamespace, const char *attrname, void *data, - size_t nbytes, int follow, enum uio_seg pathseg); -int kern_extattr_set_fd(struct thread *td, int fd, int attrnamespace, - const char *attrname, void *data, size_t nbytes); -int kern_extattr_get_path(struct thread *td, const char *path, - int attrnamespace, const char *attrname, void *data, - size_t nbytes, int follow, enum uio_seg pathseg); -int kern_extattr_get_fd(struct thread *td, int fd, int attrnamespace, - const char *attrname, void *data, size_t nbytes); -int kern_extattr_delete_path(struct thread *td, const char *path, - int attrnamespace, const char *attrname, int follow, - enum uio_seg pathseg); -int kern_extattr_delete_fd(struct thread *td, int fd, int attrnamespace, - const char *attrname); -int kern_extattr_list_path(struct thread *td, const char *path, - int attrnamespace, struct uio *auiop, int follow, - enum uio_seg pathseg); -int kern_extattr_list_fd(struct thread *td, int fd, int attrnamespace, - struct uio *auiop); #else #include struct iovec; __BEGIN_DECLS int extattrctl(const char *_path, int _cmd, const char *_filename, int _attrnamespace, const char *_attrname); int extattr_delete_fd(int _fd, int _attrnamespace, const char *_attrname); int extattr_delete_file(const char *_path, int _attrnamespace, const char *_attrname); int extattr_delete_link(const char *_path, int _attrnamespace, const char *_attrname); ssize_t extattr_get_fd(int _fd, int _attrnamespace, const char *_attrname, void *_data, size_t _nbytes); ssize_t extattr_get_file(const char *_path, int _attrnamespace, const char *_attrname, void *_data, size_t _nbytes); ssize_t extattr_get_link(const char *_path, int _attrnamespace, const char *_attrname, void *_data, size_t _nbytes); ssize_t extattr_list_fd(int _fd, int _attrnamespace, void *_data, size_t _nbytes); ssize_t extattr_list_file(const char *_path, int _attrnamespace, void *_data, size_t _nbytes); ssize_t extattr_list_link(const char *_path, int _attrnamespace, void *_data, size_t _nbytes); ssize_t extattr_set_fd(int _fd, int _attrnamespace, const char *_attrname, const void *_data, size_t _nbytes); ssize_t extattr_set_file(const char *_path, int _attrnamespace, const char *_attrname, const void *_data, size_t _nbytes); ssize_t extattr_set_link(const char *_path, int _attrnamespace, const char *_attrname, const void *_data, size_t _nbytes); __END_DECLS #endif /* !_KERNEL */ #endif /* !_SYS_EXTATTR_H_ */ diff --git a/sys/sys/syscallsubr.h b/sys/sys/syscallsubr.h index 8be860dc0fd4..0480eda2fca4 100644 --- a/sys/sys/syscallsubr.h +++ b/sys/sys/syscallsubr.h @@ -1,371 +1,391 @@ /*- * SPDX-License-Identifier: BSD-2-Clause * * 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. */ #ifndef _SYS_SYSCALLSUBR_H_ #define _SYS_SYSCALLSUBR_H_ #include #include #include #include #include #include #include struct __wrusage; struct cpuset_copy_cb; 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; struct sched_param; struct sembuf; union semun; struct sockaddr; struct spacectl_range; struct stat; struct thr_param; struct timex; struct uio; struct vm_map; struct vmspace; typedef int (*mmap_check_fp_fn)(struct file *, int, int, int); struct mmap_req { vm_offset_t mr_hint; vm_size_t mr_len; int mr_prot; int mr_flags; int mr_fd; off_t mr_pos; mmap_check_fp_fn mr_check_fp_fn; }; uint64_t at2cnpflags(u_int at_flags, u_int mask); int kern___getcwd(struct thread *td, char *buf, enum uio_seg bufseg, size_t buflen, size_t path_max); int kern_abort2(struct thread *td, const char *why, int nargs, void **uargs); 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, const char *path, enum uio_seg pathseg, int flags, int mode); int kern_adjtime(struct thread *td, struct timeval *delta, struct timeval *olddelta); int kern_bindat(struct thread *td, int dirfd, int fd, struct sockaddr *sa); int kern_break(struct thread *td, uintptr_t *addr); 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, const 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_nanosleep(struct thread *td, clockid_t clock_id, int flags, const struct timespec *rqtp, struct timespec *rmtp); int kern_clock_settime(struct thread *td, clockid_t clock_id, struct timespec *ats); void kern_thread_cputime(struct thread *targettd, struct timespec *ats); void kern_process_cputime(struct proc *targetp, struct timespec *ats); int kern_close_range(struct thread *td, int flags, u_int lowfd, u_int highfd); int kern_close(struct thread *td, int fd); int kern_connectat(struct thread *td, int dirfd, int fd, struct sockaddr *sa); int kern_copy_file_range(struct thread *td, int infd, off_t *inoffp, int outfd, off_t *outoffp, size_t len, unsigned int flags); int user_cpuset_getaffinity(struct thread *td, cpulevel_t level, cpuwhich_t which, id_t id, size_t cpusetsize, cpuset_t *maskp, const struct cpuset_copy_cb *cb); int kern_cpuset_getaffinity(struct thread *td, cpulevel_t level, cpuwhich_t which, id_t id, size_t cpusetsize, cpuset_t *mask); int kern_cpuset_setaffinity(struct thread *td, cpulevel_t level, cpuwhich_t which, id_t id, cpuset_t *maskp); int user_cpuset_setaffinity(struct thread *td, cpulevel_t level, cpuwhich_t which, id_t id, size_t cpusetsize, const cpuset_t *maskp, const struct cpuset_copy_cb *cb); int kern_cpuset_getdomain(struct thread *td, cpulevel_t level, cpuwhich_t which, id_t id, size_t domainsetsize, domainset_t *maskp, int *policyp, const struct cpuset_copy_cb *cb); int kern_cpuset_setdomain(struct thread *td, cpulevel_t level, cpuwhich_t which, id_t id, size_t domainsetsize, const domainset_t *maskp, int policy, const struct cpuset_copy_cb *cb); int kern_cpuset_getid(struct thread *td, cpulevel_t level, cpuwhich_t which, id_t id, cpusetid_t *setid); int kern_cpuset_setid(struct thread *td, cpuwhich_t which, id_t id, cpusetid_t setid); 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, struct vmspace *oldvmspace); +int kern_extattr_delete_fd(struct thread *td, int fd, int attrnamespace, + const char *attrname); +int kern_extattr_delete_path(struct thread *td, const char *path, + int attrnamespace, const char *attrname, int follow, + enum uio_seg pathseg); +int kern_extattr_get_fd(struct thread *td, int fd, int attrnamespace, + const char *attrname, void *data, size_t nbytes); +int kern_extattr_get_path(struct thread *td, const char *path, + int attrnamespace, const char *attrname, void *data, + size_t nbytes, int follow, enum uio_seg pathseg); +int kern_extattr_list_fd(struct thread *td, int fd, int attrnamespace, + struct uio *auiop); +int kern_extattr_list_path(struct thread *td, const char *path, + int attrnamespace, struct uio *auiop, int follow, + enum uio_seg pathseg); +int kern_extattr_set_fd(struct thread *td, int fd, int attrnamespace, + const char *attrname, void *data, size_t nbytes); +int kern_extattr_set_path(struct thread *td, const char *path, + int attrnamespace, const char *attrname, void *data, + size_t nbytes, int follow, enum uio_seg pathseg); int kern_fchmodat(struct thread *td, int fd, const char *path, enum uio_seg pathseg, mode_t mode, int flag); int kern_fchownat(struct thread *td, int fd, const 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_fhopen(struct thread *td, const struct fhandle *u_fhp, int flags); 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_fpathconf(struct thread *td, int fd, int name, long *valuep); int kern_freebsd11_getfsstat(struct thread *td, struct freebsd11_statfs *ubuf, long bufsize, int mode); int kern_fstat(struct thread *td, int fd, struct stat *sbp); int kern_fstatfs(struct thread *td, int fd, struct statfs *buf); int kern_fsync(struct thread *td, int fd, bool fullsync); int kern_ftruncate(struct thread *td, int fd, off_t length); int kern_futimes(struct thread *td, int fd, const struct timeval *tptr, enum uio_seg tptrseg); int kern_futimens(struct thread *td, int fd, const struct timespec *tptr, enum uio_seg tptrseg); int kern_getdirentries(struct thread *td, int fd, char *buf, size_t count, off_t *basep, ssize_t *residp, enum uio_seg bufseg); int kern_getfhat(struct thread *td, int flags, int fd, const char *path, enum uio_seg pathseg, fhandle_t *fhp, enum uio_seg fhseg); int kern_getfsstat(struct thread *td, struct statfs **buf, size_t bufsize, size_t *countp, enum uio_seg bufseg, int mode); 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_getpriority(struct thread *td, int which, int who); int kern_getrusage(struct thread *td, int who, struct rusage *rup); int kern_getsid(struct thread *td, pid_t pid); 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_anonymous(struct thread *td, int nevents, struct kevent_copyops *k_ops); 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_kill(struct thread *td, pid_t pid, int signum); 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, const char *path1, const char *path2, enum uio_seg segflg, int flag); int kern_listen(struct thread *td, int s, int backlog); int kern_lseek(struct thread *td, int fd, off_t offset, int whence); int kern_lutimes(struct thread *td, const char *path, enum uio_seg pathseg, const struct timeval *tptr, enum uio_seg tptrseg); int kern_madvise(struct thread *td, uintptr_t addr, size_t len, int behav); int kern_mincore(struct thread *td, uintptr_t addr, size_t len, char *vec); int kern_minherit(struct thread *td, uintptr_t addr, size_t len, int inherit); int kern_mkdirat(struct thread *td, int fd, const char *path, enum uio_seg segflg, int mode); int kern_membarrier(struct thread *td, int cmd, unsigned flags, int cpu_id); int kern_mkfifoat(struct thread *td, int fd, const char *path, enum uio_seg pathseg, int mode); int kern_mknodat(struct thread *td, int fd, const char *path, enum uio_seg pathseg, int mode, dev_t dev); int kern_mlock(struct proc *proc, struct ucred *cred, uintptr_t addr, size_t len); int kern_mmap(struct thread *td, const struct mmap_req *mrp); int kern_mmap_racct_check(struct thread *td, struct vm_map *map, vm_size_t size); int kern_mmap_maxprot(struct proc *p, int prot); int kern_mprotect(struct thread *td, uintptr_t addr, size_t size, int prot, int flags); int kern_msgctl(struct thread *, int, int, struct msqid_ds *); int kern_msgrcv(struct thread *, int, void *, size_t, long, int, long *); int kern_msgsnd(struct thread *, int, const void *, size_t, int, long); int kern_msync(struct thread *td, uintptr_t addr, size_t size, int flags); int kern_munlock(struct thread *td, uintptr_t addr, size_t size); int kern_munmap(struct thread *td, uintptr_t addr, size_t size); int kern_nanosleep(struct thread *td, struct timespec *rqt, struct timespec *rmt); int kern_ntp_adjtime(struct thread *td, struct timex *ntv, int *retvalp); int kern_ogetdirentries(struct thread *td, struct ogetdirentries_args *uap, long *ploff); int kern_ommap(struct thread *td, uintptr_t hint, int len, int oprot, int oflags, int fd, long pos); int kern_openat(struct thread *td, int fd, const char *path, enum uio_seg pathseg, int flags, int mode); int kern_pathconf(struct thread *td, const char *path, enum uio_seg pathseg, int name, u_long flags, long *valuep); 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_poll_kfds(struct thread *td, struct pollfd *fds, u_int nfds, struct timespec *tsp, sigset_t *uset); bool kern_poll_maxfds(u_int nfds); int kern_posix_error(struct thread *td, int error); 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_fspacectl(struct thread *td, int fd, int cmd, const struct spacectl_range *, int flags, struct spacectl_range *); int kern_procctl(struct thread *td, enum idtype idtype, id_t id, int com, void *data); int kern_pread(struct thread *td, int fd, void *buf, size_t nbyte, off_t offset); 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_pwrite(struct thread *td, int fd, const void *buf, size_t nbyte, off_t offset); int kern_pwritev(struct thread *td, int fd, struct uio *auio, off_t offset); int kern_readlinkat(struct thread *td, int fd, const 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, const char *old, int newfd, const char *new, enum uio_seg pathseg); int kern_frmdirat(struct thread *td, int dfd, const char *path, int fd, enum uio_seg pathseg, int flag); 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_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_setpriority(struct thread *td, int which, int who, int prio); int kern_setrlimit(struct thread *, u_int, struct rlimit *); int kern_setsockopt(struct thread *td, int s, int level, int name, const 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_shm_open2(struct thread *td, const char *path, int flags, mode_t mode, int shmflags, struct filecaps *fcaps, const char *name); 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_shutdown(struct thread *td, int s, int how); 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_sigqueue(struct thread *td, pid_t pid, int signum, union sigval *value); int kern_socket(struct thread *td, int domain, int type, int protocol); int kern_statat(struct thread *td, int flag, int fd, const char *path, enum uio_seg pathseg, struct stat *sbp); int kern_specialfd(struct thread *td, int type, void *arg); int kern_statfs(struct thread *td, const char *path, enum uio_seg pathseg, struct statfs *buf); int kern_symlinkat(struct thread *td, const char *path1, int fd, const char *path2, enum uio_seg segflg); int kern_sync(struct thread *td); 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_semop(struct thread *td, int usemid, struct sembuf *usops, size_t nsops, struct timespec *timeout); 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, const char *path, enum uio_seg pathseg, off_t length); int kern_funlinkat(struct thread *td, int dfd, const char *path, int fd, enum uio_seg pathseg, int flag, ino_t oldinum); int kern_utimesat(struct thread *td, int fd, const char *path, enum uio_seg pathseg, const struct timeval *tptr, enum uio_seg tptrseg); int kern_utimensat(struct thread *td, int fd, const char *path, enum uio_seg pathseg, const struct timespec *tptr, enum uio_seg tptrseg, int flag); 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); int kern_unmount(struct thread *td, const char *path, int flags); /* flags for kern_sigaction */ #define KSA_OSIGSET 0x0001 /* uses osigact_t */ #define KSA_FREEBSD4 0x0002 /* uses ucontext4 */ struct freebsd11_dirent; int freebsd11_kern_getdirentries(struct thread *td, int fd, char *ubuf, u_int count, long *basep, void (*func)(struct freebsd11_dirent *)); #endif /* !_SYS_SYSCALLSUBR_H_ */