mac.h revision 106212
118334Speter/*- 290075Sobrien * Copyright (c) 1999, 2000, 2001, 2002 Robert N. M. Watson 3169689Skan * Copyright (c) 2001, 2002 Networks Associates Technology, Inc. 418334Speter * All rights reserved. 518334Speter * 690075Sobrien * This software was developed by Robert Watson for the TrustedBSD Project. 718334Speter * 890075Sobrien * This software was developed for the FreeBSD Project in part by NAI Labs, 990075Sobrien * the Security Research Division of Network Associates, Inc. under 1090075Sobrien * DARPA/SPAWAR contract N66001-01-C-8035 ("CBOSS"), as part of the DARPA 1190075Sobrien * CHATS research program. 1218334Speter * 1390075Sobrien * Redistribution and use in source and binary forms, with or without 1490075Sobrien * modification, are permitted provided that the following conditions 1590075Sobrien * are met: 1690075Sobrien * 1. Redistributions of source code must retain the above copyright 1718334Speter * notice, this list of conditions and the following disclaimer. 1818334Speter * 2. Redistributions in binary form must reproduce the above copyright 1990075Sobrien * notice, this list of conditions and the following disclaimer in the 20169689Skan * documentation and/or other materials provided with the distribution. 21169689Skan * 3. The names of the authors may not be used to endorse or promote 2218334Speter * products derived from this software without specific prior written 2318334Speter * permission. 24169689Skan * 2518334Speter * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 2618334Speter * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 2718334Speter * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 2818334Speter * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 2918334Speter * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 3018334Speter * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 3118334Speter * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 3218334Speter * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 3318334Speter * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 3418334Speter * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 3518334Speter * SUCH DAMAGE. 3618334Speter * 3718334Speter * $FreeBSD: head/sys/sys/mac.h 106212 2002-10-30 17:56:57Z rwatson $ 3852284Sobrien */ 3918334Speter/* 4090075Sobrien * Userland/kernel interface for Mandatory Access Control. 4118334Speter * 4218334Speter * The POSIX.1e implementation page may be reached at: 4318334Speter * http://www.trustedbsd.org/ 4418334Speter */ 4518334Speter#ifndef _SYS_MAC_H 4618334Speter#define _SYS_MAC_H 4718334Speter 4818334Speter#include <sys/_label.h> 4918334Speter 5018334Speter#ifndef _POSIX_MAC 5118334Speter#define _POSIX_MAC 5218334Speter#endif 5318334Speter 5418334Speter/* 5590075Sobrien * XXXMAC: The single MAC extended attribute will be deprecated once 5618334Speter * compound EA writes on a single target file can be performed cleanly 57169689Skan * with UFS2. 5818334Speter */ 5918334Speter#define FREEBSD_MAC_EXTATTR_NAME "freebsd.mac" 6018334Speter#define FREEBSD_MAC_EXTATTR_NAMESPACE EXTATTR_NAMESPACE_SYSTEM 6118334Speter 6218334Speter/* 6318334Speter * MAC framework-related constants and limits. 6418334Speter */ 6518334Speter#define MAC_MAX_POLICY_NAME 32 6618334Speter#define MAC_MAX_LABEL_ELEMENT_NAME 32 6718334Speter#define MAC_MAX_LABEL_ELEMENT_DATA 4096 6818334Speter#define MAC_MAX_LABEL_BUF_LEN 8192 6918334Speter 7018334Speterstruct mac { 7118334Speter size_t m_buflen; 7218334Speter char *m_string; 73169689Skan}; 74169689Skan 7518334Spetertypedef struct mac *mac_t; 7618334Speter 7718334Speter#ifndef _KERNEL 7818334Speter 7918334Speter/* 8018334Speter * Location of the userland MAC framework configuration file. mac.conf 8118334Speter * binds policy names to shared libraries that understand those policies, 8218334Speter * as well as setting defaults for MAC-aware applications. 8318334Speter */ 8418334Speter#define MAC_CONFFILE "/etc/mac.conf" 8518334Speter 8618334Speter/* 8718334Speter * Extended non-POSIX.1e interfaces that offer additional services 88117395Skan * available from the userland and kernel MAC frameworks. 8918334Speter */ 90117395Skanint mac_free(mac_t _label); 9118334Speterint mac_from_text(mac_t *_label, const char *_text); 92169689Skanint mac_get_fd(int _fd, mac_t _label); 93169689Skanint mac_get_file(const char *_path, mac_t _label); 9418334Speterint mac_get_link(const char *_path, mac_t _label); 95117395Skanint mac_get_pid(pid_t _pid, mac_t _label); 96117395Skanint mac_get_proc(mac_t _label); 97169689Skanint mac_is_present(const char *_policyname); 98117395Skanint mac_prepare(mac_t *_label, char *_elements); 99132718Skanint mac_prepare_file_label(mac_t *_label); 100132718Skanint mac_prepare_ifnet_label(mac_t *_label); 101132718Skanint mac_prepare_process_label(mac_t *_label); 102169689Skanint mac_set_fd(int _fildes, const mac_t _label); 103132718Skanint mac_set_file(const char *_path, mac_t _label); 104132718Skanint mac_set_link(const char *_path, mac_t _label); 105132718Skanint mac_set_proc(const mac_t _label); 106132718Skanint mac_syscall(const char *_policyname, int _call, void *_arg); 107132718Skanint mac_to_text(mac_t mac, char **_text); 10850397Sobrien 109132718Skan#else /* _KERNEL */ 110132718Skan 11118334Speter/* 11290075Sobrien * Kernel functions to manage and evaluate labels. 11318334Speter */ 11490075Sobrienstruct bpf_d; 11518334Speterstruct componentname; 116169689Skanstruct devfs_dirent; 117169689Skanstruct ifnet; 118169689Skanstruct ifreq; 119117395Skanstruct ipq; 12090075Sobrienstruct mbuf; 121169689Skanstruct mount; 122169689Skanstruct proc; 12318334Speterstruct sockaddr; 12418334Speterstruct socket; 12518334Speterstruct pipe; 12618334Speterstruct thread; 12718334Speterstruct timespec; 12818334Speterstruct ucred; 12918334Speterstruct uio; 13018334Speterstruct vattr; 13118334Speterstruct vnode; 13218334Speter 13318334Speter#include <sys/acl.h> /* XXX acl_type_t */ 13418334Speter 13518334Speterstruct vop_refreshlabel_args; 13690075Sobrienstruct vop_setlabel_args; 13790075Sobrien 13850397Sobrien/* 13950397Sobrien * Label operations. 14090075Sobrien */ 14118334Spetervoid mac_init_bpfdesc(struct bpf_d *); 14250397Sobrienvoid mac_init_cred(struct ucred *); 14318334Spetervoid mac_init_devfsdirent(struct devfs_dirent *); 14418334Spetervoid mac_init_ifnet(struct ifnet *); 14518334Spetervoid mac_init_ipq(struct ipq *); 14618334Speterint mac_init_socket(struct socket *, int flag); 14718334Spetervoid mac_init_pipe(struct pipe *); 14818334Speterint mac_init_mbuf(struct mbuf *m, int flag); 14918334Spetervoid mac_init_mount(struct mount *); 15018334Spetervoid mac_init_vnode(struct vnode *); 15190075Sobrienvoid mac_init_vnode_label(struct label *); 152169689Skanvoid mac_copy_vnode_label(struct label *, struct label *label); 15318334Spetervoid mac_destroy_bpfdesc(struct bpf_d *); 15418334Spetervoid mac_destroy_cred(struct ucred *); 15518334Spetervoid mac_destroy_devfsdirent(struct devfs_dirent *); 15618334Spetervoid mac_destroy_ifnet(struct ifnet *); 15718334Spetervoid mac_destroy_ipq(struct ipq *); 15818334Spetervoid mac_destroy_socket(struct socket *); 15918334Spetervoid mac_destroy_pipe(struct pipe *); 16018334Spetervoid mac_destroy_mbuf(struct mbuf *); 16118334Spetervoid mac_destroy_mount(struct mount *); 16218334Spetervoid mac_destroy_vnode(struct vnode *); 16318334Spetervoid mac_destroy_vnode_label(struct label *); 16418334Speter 16518334Speter/* 16618334Speter * Labeling event operations: file system objects, and things that 16718334Speter * look a lot like file system objects. 16818334Speter */ 16918334Spetervoid mac_associate_vnode_devfs(struct mount *mp, struct devfs_dirent *de, 17018334Speter struct vnode *vp); 17118334Speterint mac_associate_vnode_extattr(struct mount *mp, struct vnode *vp); 17250397Sobrienvoid mac_associate_vnode_singlelabel(struct mount *mp, struct vnode *vp); 17350397Sobrienvoid mac_create_devfs_device(dev_t dev, struct devfs_dirent *de); 174132718Skanvoid mac_create_devfs_directory(char *dirname, int dirnamelen, 175132718Skan struct devfs_dirent *de); 176132718Skanvoid mac_create_devfs_symlink(struct ucred *cred, struct devfs_dirent *dd, 17750397Sobrien struct devfs_dirent *de); 17850397Sobrienvoid mac_create_devfs_vnode(struct devfs_dirent *de, struct vnode *vp); 17950397Sobrienint mac_create_vnode_extattr(struct ucred *cred, struct mount *mp, 18018334Speter struct vnode *dvp, struct vnode *vp, struct componentname *cnp); 18118334Spetervoid mac_create_mount(struct ucred *cred, struct mount *mp); 18218334Spetervoid mac_create_root_mount(struct ucred *cred, struct mount *mp); 18318334Spetervoid mac_relabel_vnode(struct ucred *cred, struct vnode *vp, 18418334Speter struct label *newlabel); 18518334Spetervoid mac_update_devfsdirent(struct devfs_dirent *de, struct vnode *vp); 18618334Speter 18750397Sobrien/* 18818334Speter * Labeling event operations: IPC objects. 18990075Sobrien */ 19018334Spetervoid mac_create_mbuf_from_socket(struct socket *so, struct mbuf *m); 19118334Spetervoid mac_create_socket(struct ucred *cred, struct socket *socket); 19218334Spetervoid mac_create_socket_from_socket(struct socket *oldsocket, 19318334Speter struct socket *newsocket); 19418334Spetervoid mac_set_socket_peer_from_mbuf(struct mbuf *mbuf, 19518334Speter struct socket *socket); 19618334Spetervoid mac_set_socket_peer_from_socket(struct socket *oldsocket, 19718334Speter struct socket *newsocket); 19818334Spetervoid mac_create_pipe(struct ucred *cred, struct pipe *pipe); 19918334Speter 20050397Sobrien/* 20118334Speter * Labeling event operations: network objects. 20218334Speter */ 20318334Spetervoid mac_create_bpfdesc(struct ucred *cred, struct bpf_d *bpf_d); 20418334Spetervoid mac_create_ifnet(struct ifnet *ifp); 20518334Spetervoid mac_create_ipq(struct mbuf *fragment, struct ipq *ipq); 20618334Spetervoid mac_create_datagram_from_ipq(struct ipq *ipq, struct mbuf *datagram); 20718334Spetervoid mac_create_fragment(struct mbuf *datagram, struct mbuf *fragment); 20818334Spetervoid mac_create_mbuf_from_mbuf(struct mbuf *oldmbuf, struct mbuf *newmbuf); 20918334Spetervoid mac_create_mbuf_linklayer(struct ifnet *ifnet, struct mbuf *m); 21018334Spetervoid mac_create_mbuf_from_bpfdesc(struct bpf_d *bpf_d, struct mbuf *m); 21118334Spetervoid mac_create_mbuf_from_ifnet(struct ifnet *ifnet, struct mbuf *m); 21218334Spetervoid mac_create_mbuf_multicast_encap(struct mbuf *oldmbuf, 21318334Speter struct ifnet *ifnet, struct mbuf *newmbuf); 21418334Spetervoid mac_create_mbuf_netlayer(struct mbuf *oldmbuf, struct mbuf *newmbuf); 21518334Speterint mac_fragment_match(struct mbuf *fragment, struct ipq *ipq); 21618334Spetervoid mac_update_ipq(struct mbuf *fragment, struct ipq *ipq); 21718334Speter 21818334Speter/* 21918334Speter * Labeling event operations: processes. 22018334Speter */ 22118334Spetervoid mac_create_cred(struct ucred *cred_parent, struct ucred *cred_child); 22218334Spetervoid mac_execve_transition(struct ucred *old, struct ucred *new, 22318334Speter struct vnode *vp); 22418334Speterint mac_execve_will_transition(struct ucred *old, struct vnode *vp); 22518334Spetervoid mac_create_proc0(struct ucred *cred); 22618334Spetervoid mac_create_proc1(struct ucred *cred); 22718334Spetervoid mac_thread_userret(struct thread *td); 228169689Skan 229132718Skan/* Access control checks. */ 230132718Skanint mac_check_bpfdesc_receive(struct bpf_d *bpf_d, struct ifnet *ifnet); 231132718Skanint mac_check_cred_visible(struct ucred *u1, struct ucred *u2); 232132718Skanint mac_check_ifnet_transmit(struct ifnet *ifnet, struct mbuf *m); 23318334Speterint mac_check_mount_stat(struct ucred *cred, struct mount *mp); 23418334Speterint mac_check_pipe_ioctl(struct ucred *cred, struct pipe *pipe, 23518334Speter unsigned long cmd, void *data); 23618334Speterint mac_check_pipe_poll(struct ucred *cred, struct pipe *pipe); 237117395Skanint mac_check_pipe_read(struct ucred *cred, struct pipe *pipe); 23818334Speterint mac_check_pipe_stat(struct ucred *cred, struct pipe *pipe); 23990075Sobrienint mac_check_pipe_write(struct ucred *cred, struct pipe *pipe); 240132718Skanint mac_check_proc_debug(struct ucred *cred, struct proc *proc); 241132718Skanint mac_check_proc_sched(struct ucred *cred, struct proc *proc); 242169689Skanint mac_check_proc_signal(struct ucred *cred, struct proc *proc, 243169689Skan int signum); 244169689Skanint mac_check_socket_bind(struct ucred *cred, struct socket *so, 245169689Skan struct sockaddr *sockaddr); 246169689Skanint mac_check_socket_connect(struct ucred *cred, struct socket *so, 247169689Skan struct sockaddr *sockaddr); 248169689Skanint mac_check_socket_deliver(struct socket *so, struct mbuf *m); 249169689Skanint mac_check_socket_listen(struct ucred *cred, struct socket *so); 250169689Skanint mac_check_socket_receive(struct ucred *cred, struct socket *so); 251169689Skanint mac_check_socket_send(struct ucred *cred, struct socket *so); 252169689Skanint mac_check_socket_visible(struct ucred *cred, struct socket *so); 253169689Skanint mac_check_system_reboot(struct ucred *cred, int howto); 254169689Skanint mac_check_system_swapon(struct ucred *cred, struct vnode *vp); 255169689Skanint mac_check_system_sysctl(struct ucred *cred, int *name, 256169689Skan u_int namelen, void *old, size_t *oldlenp, int inkernel, 257169689Skan void *new, size_t newlen); 258169689Skanint mac_check_vnode_access(struct ucred *cred, struct vnode *vp, 259169689Skan int acc_mode); 260132718Skanint mac_check_vnode_chdir(struct ucred *cred, struct vnode *dvp); 261169689Skanint mac_check_vnode_chroot(struct ucred *cred, struct vnode *dvp); 262169689Skanint mac_check_vnode_create(struct ucred *cred, struct vnode *dvp, 263169689Skan struct componentname *cnp, struct vattr *vap); 264169689Skanint mac_check_vnode_delete(struct ucred *cred, struct vnode *dvp, 265169689Skan struct vnode *vp, struct componentname *cnp); 266132718Skanint mac_check_vnode_deleteacl(struct ucred *cred, struct vnode *vp, 267169689Skan acl_type_t type); 268169689Skanint mac_check_vnode_exec(struct ucred *cred, struct vnode *vp); 269169689Skanint mac_check_vnode_getacl(struct ucred *cred, struct vnode *vp, 270169689Skan acl_type_t type); 271169689Skanint mac_check_vnode_getextattr(struct ucred *cred, struct vnode *vp, 272169689Skan int attrnamespace, const char *name, struct uio *uio); 273169689Skanint mac_check_vnode_link(struct ucred *cred, struct vnode *dvp, 274169689Skan struct vnode *vp, struct componentname *cnp); 275169689Skanint mac_check_vnode_lookup(struct ucred *cred, struct vnode *dvp, 276169689Skan struct componentname *cnp); 277169689Skanint mac_check_vnode_mmap(struct ucred *cred, struct vnode *vp, 278169689Skan int prot); 279169689Skanint mac_check_vnode_mprotect(struct ucred *cred, struct vnode *vp, 28018334Speter int prot); 28118334Speterint mac_check_vnode_open(struct ucred *cred, struct vnode *vp, 282132718Skan int acc_mode); 28318334Speterint mac_check_vnode_poll(struct ucred *active_cred, 28418334Speter struct ucred *file_cred, struct vnode *vp); 28518334Speterint mac_check_vnode_read(struct ucred *active_cred, 28618334Speter struct ucred *file_cred, struct vnode *vp); 28718334Speterint mac_check_vnode_readdir(struct ucred *cred, struct vnode *vp); 28818334Speterint mac_check_vnode_readlink(struct ucred *cred, struct vnode *vp); 28918334Speterint mac_check_vnode_rename_from(struct ucred *cred, struct vnode *dvp, 29018334Speter struct vnode *vp, struct componentname *cnp); 29118334Speterint mac_check_vnode_rename_to(struct ucred *cred, struct vnode *dvp, 29218334Speter struct vnode *vp, int samedir, struct componentname *cnp); 29318334Speterint mac_check_vnode_revoke(struct ucred *cred, struct vnode *vp); 29418334Speterint mac_check_vnode_setacl(struct ucred *cred, struct vnode *vp, 29518334Speter acl_type_t type, struct acl *acl); 29618334Speterint mac_check_vnode_setextattr(struct ucred *cred, struct vnode *vp, 29718334Speter int attrnamespace, const char *name, struct uio *uio); 29818334Speterint mac_check_vnode_setflags(struct ucred *cred, struct vnode *vp, 29918334Speter u_long flags); 30018334Speterint mac_check_vnode_setmode(struct ucred *cred, struct vnode *vp, 30118334Speter mode_t mode); 30218334Speterint mac_check_vnode_setowner(struct ucred *cred, struct vnode *vp, 30318334Speter uid_t uid, gid_t gid); 30418334Speterint mac_check_vnode_setutimes(struct ucred *cred, struct vnode *vp, 30518334Speter struct timespec atime, struct timespec mtime); 30618334Speterint mac_check_vnode_stat(struct ucred *active_cred, 30718334Speter struct ucred *file_cred, struct vnode *vp); 308169689Skanint mac_check_vnode_write(struct ucred *active_cred, 30918334Speter struct ucred *file_cred, struct vnode *vp); 31018334Speterint mac_getsockopt_label_get(struct ucred *cred, struct socket *so, 31118334Speter struct mac *extmac); 31250397Sobrienint mac_getsockopt_peerlabel_get(struct ucred *cred, struct socket *so, 31318334Speter struct mac *extmac); 31418334Speterint mac_ioctl_ifnet_get(struct ucred *cred, struct ifreq *ifr, 31518334Speter struct ifnet *ifnet); 31618334Speterint mac_ioctl_ifnet_set(struct ucred *cred, struct ifreq *ifr, 317132718Skan struct ifnet *ifnet); 31818334Speterint mac_setsockopt_label_set(struct ucred *cred, struct socket *so, 31990075Sobrien struct mac *extmac); 32018334Speterint mac_pipe_label_set(struct ucred *cred, struct pipe *pipe, 321132718Skan struct label *label); 32218334Speter 32318334Speter/* 32418334Speter * Calls to help various file systems implement labeling functionality 32518334Speter * using their existing EA implementation. 32618334Speter */ 32718334Speterint vop_stdsetlabel_ea(struct vop_setlabel_args *ap); 32818334Speter 32918334Speter#endif /* !_KERNEL */ 33018334Speter 331132718Skan#endif /* !_SYS_MAC_H */ 33218334Speter