The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/security/mac/mac_framework.h

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    1 /*-
    2  * Copyright (c) 1999-2002, 2007-2011 Robert N. M. Watson
    3  * Copyright (c) 2001-2005 Networks Associates Technology, Inc.
    4  * Copyright (c) 2005-2006 SPARTA, Inc.
    5  * All rights reserved.
    6  *
    7  * This software was developed by Robert Watson for the TrustedBSD Project.
    8  *
    9  * This software was developed for the FreeBSD Project in part by Network
   10  * Associates Laboratories, the Security Research Division of Network
   11  * Associates, Inc. under DARPA/SPAWAR contract N66001-01-C-8035 ("CBOSS"),
   12  * as part of the DARPA CHATS research program.
   13  *
   14  * This software was enhanced by SPARTA ISSO under SPAWAR contract
   15  * N66001-04-C-6019 ("SEFOS").
   16  *
   17  * This software was developed at the University of Cambridge Computer
   18  * Laboratory with support from a grant from Google, Inc.
   19  *
   20  * Redistribution and use in source and binary forms, with or without
   21  * modification, are permitted provided that the following conditions
   22  * are met:
   23  * 1. Redistributions of source code must retain the above copyright
   24  *    notice, this list of conditions and the following disclaimer.
   25  * 2. Redistributions in binary form must reproduce the above copyright
   26  *    notice, this list of conditions and the following disclaimer in the
   27  *    documentation and/or other materials provided with the distribution.
   28  *
   29  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   30  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   31  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   32  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   33  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   34  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   35  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   36  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   37  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   38  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   39  * SUCH DAMAGE.
   40  *
   41  * $FreeBSD$
   42  */
   43 
   44 /*
   45  * Kernel interface for Mandatory Access Control -- how kernel services
   46  * interact with the TrustedBSD MAC Framework.
   47  */
   48 
   49 #ifndef _SECURITY_MAC_MAC_FRAMEWORK_H_
   50 #define _SECURITY_MAC_MAC_FRAMEWORK_H_
   51 
   52 #ifndef _KERNEL
   53 #error "no user-serviceable parts inside"
   54 #endif
   55 
   56 struct auditinfo;
   57 struct auditinfo_addr;
   58 struct bpf_d;
   59 struct cdev;
   60 struct componentname;
   61 struct devfs_dirent;
   62 struct ifnet;
   63 struct ifreq;
   64 struct image_params;
   65 struct inpcb;
   66 struct ip6q;
   67 struct ipq;
   68 struct ksem;
   69 struct label;
   70 struct m_tag;
   71 struct mac;
   72 struct mbuf;
   73 struct mount;
   74 struct msg;
   75 struct msqid_kernel;
   76 struct proc;
   77 struct semid_kernel;
   78 struct shmfd;
   79 struct shmid_kernel;
   80 struct sockaddr;
   81 struct socket;
   82 struct sysctl_oid;
   83 struct sysctl_req;
   84 struct pipepair;
   85 struct thread;
   86 struct timespec;
   87 struct ucred;
   88 struct vattr;
   89 struct vnode;
   90 struct vop_setlabel_args;
   91 
   92 #include <sys/acl.h>                    /* XXX acl_type_t */
   93 #include <sys/types.h>                  /* accmode_t */
   94 
   95 /*
   96  * Entry points to the TrustedBSD MAC Framework from the remainder of the
   97  * kernel: entry points are named based on a principle object type and an
   98  * action relating to it.  They are sorted alphabetically first by object
   99  * type and then action.  In some situations, the principle object type is
  100  * obvious, and in other cases, less so as multiple objects may be inolved
  101  * in the operation.
  102  */
  103 int     mac_bpfdesc_check_receive(struct bpf_d *d, struct ifnet *ifp);
  104 void    mac_bpfdesc_create(struct ucred *cred, struct bpf_d *d);
  105 void    mac_bpfdesc_create_mbuf(struct bpf_d *d, struct mbuf *m);
  106 void    mac_bpfdesc_destroy(struct bpf_d *);
  107 void    mac_bpfdesc_init(struct bpf_d *);
  108 
  109 void    mac_cred_associate_nfsd(struct ucred *cred);
  110 int     mac_cred_check_setaudit(struct ucred *cred, struct auditinfo *ai);
  111 int     mac_cred_check_setaudit_addr(struct ucred *cred,
  112             struct auditinfo_addr *aia);
  113 int     mac_cred_check_setauid(struct ucred *cred, uid_t auid);
  114 int     mac_cred_check_setegid(struct ucred *cred, gid_t egid);
  115 int     mac_cred_check_seteuid(struct ucred *cred, uid_t euid);
  116 int     mac_cred_check_setgid(struct ucred *cred, gid_t gid);
  117 int     mac_cred_check_setgroups(struct ucred *cred, int ngroups,
  118             gid_t *gidset);
  119 int     mac_cred_check_setregid(struct ucred *cred, gid_t rgid, gid_t egid);
  120 int     mac_cred_check_setresgid(struct ucred *cred, gid_t rgid, gid_t egid,
  121             gid_t sgid);
  122 int     mac_cred_check_setresuid(struct ucred *cred, uid_t ruid, uid_t euid,
  123             uid_t suid);
  124 int     mac_cred_check_setreuid(struct ucred *cred, uid_t ruid, uid_t euid);
  125 int     mac_cred_check_setuid(struct ucred *cred, uid_t uid);
  126 int     mac_cred_check_visible(struct ucred *cr1, struct ucred *cr2);
  127 void    mac_cred_copy(struct ucred *cr1, struct ucred *cr2);
  128 void    mac_cred_create_init(struct ucred *cred);
  129 void    mac_cred_create_swapper(struct ucred *cred);
  130 void    mac_cred_destroy(struct ucred *);
  131 void    mac_cred_init(struct ucred *);
  132 
  133 void    mac_devfs_create_device(struct ucred *cred, struct mount *mp,
  134             struct cdev *dev, struct devfs_dirent *de);
  135 void    mac_devfs_create_directory(struct mount *mp, char *dirname,
  136             int dirnamelen, struct devfs_dirent *de);
  137 void    mac_devfs_create_symlink(struct ucred *cred, struct mount *mp,
  138             struct devfs_dirent *dd, struct devfs_dirent *de);
  139 void    mac_devfs_destroy(struct devfs_dirent *);
  140 void    mac_devfs_init(struct devfs_dirent *);
  141 void    mac_devfs_update(struct mount *mp, struct devfs_dirent *de,
  142             struct vnode *vp);
  143 void    mac_devfs_vnode_associate(struct mount *mp, struct devfs_dirent *de,
  144             struct vnode *vp);
  145 
  146 int     mac_ifnet_check_transmit(struct ifnet *ifp, struct mbuf *m);
  147 void    mac_ifnet_create(struct ifnet *ifp);
  148 void    mac_ifnet_create_mbuf(struct ifnet *ifp, struct mbuf *m);
  149 void    mac_ifnet_destroy(struct ifnet *);
  150 void    mac_ifnet_init(struct ifnet *);
  151 int     mac_ifnet_ioctl_get(struct ucred *cred, struct ifreq *ifr,
  152             struct ifnet *ifp);
  153 int     mac_ifnet_ioctl_set(struct ucred *cred, struct ifreq *ifr,
  154             struct ifnet *ifp);
  155 
  156 int     mac_inpcb_check_deliver(struct inpcb *inp, struct mbuf *m);
  157 int     mac_inpcb_check_visible(struct ucred *cred, struct inpcb *inp);
  158 void    mac_inpcb_create(struct socket *so, struct inpcb *inp);
  159 void    mac_inpcb_create_mbuf(struct inpcb *inp, struct mbuf *m);
  160 void    mac_inpcb_destroy(struct inpcb *);
  161 int     mac_inpcb_init(struct inpcb *, int);
  162 void    mac_inpcb_sosetlabel(struct socket *so, struct inpcb *inp);
  163 
  164 void    mac_ip6q_create(struct mbuf *m, struct ip6q *q6);
  165 void    mac_ip6q_destroy(struct ip6q *q6);
  166 int     mac_ip6q_init(struct ip6q *q6, int);
  167 int     mac_ip6q_match(struct mbuf *m, struct ip6q *q6);
  168 void    mac_ip6q_reassemble(struct ip6q *q6, struct mbuf *m);
  169 void    mac_ip6q_update(struct mbuf *m, struct ip6q *q6);
  170 
  171 void    mac_ipq_create(struct mbuf *m, struct ipq *q);
  172 void    mac_ipq_destroy(struct ipq *q);
  173 int     mac_ipq_init(struct ipq *q, int);
  174 int     mac_ipq_match(struct mbuf *m, struct ipq *q);
  175 void    mac_ipq_reassemble(struct ipq *q, struct mbuf *m);
  176 void    mac_ipq_update(struct mbuf *m, struct ipq *q);
  177 
  178 int     mac_kenv_check_dump(struct ucred *cred);
  179 int     mac_kenv_check_get(struct ucred *cred, char *name);
  180 int     mac_kenv_check_set(struct ucred *cred, char *name, char *value);
  181 int     mac_kenv_check_unset(struct ucred *cred, char *name);
  182 
  183 int     mac_kld_check_load(struct ucred *cred, struct vnode *vp);
  184 int     mac_kld_check_stat(struct ucred *cred);
  185 
  186 void    mac_mbuf_copy(struct mbuf *, struct mbuf *);
  187 int     mac_mbuf_init(struct mbuf *, int);
  188 
  189 void    mac_mbuf_tag_copy(struct m_tag *, struct m_tag *);
  190 void    mac_mbuf_tag_destroy(struct m_tag *);
  191 int     mac_mbuf_tag_init(struct m_tag *, int);
  192 
  193 int     mac_mount_check_stat(struct ucred *cred, struct mount *mp);
  194 void    mac_mount_create(struct ucred *cred, struct mount *mp);
  195 void    mac_mount_destroy(struct mount *);
  196 void    mac_mount_init(struct mount *);
  197 
  198 void    mac_netinet_arp_send(struct ifnet *ifp, struct mbuf *m);
  199 void    mac_netinet_firewall_reply(struct mbuf *mrecv, struct mbuf *msend);
  200 void    mac_netinet_firewall_send(struct mbuf *m);
  201 void    mac_netinet_fragment(struct mbuf *m, struct mbuf *frag);
  202 void    mac_netinet_icmp_reply(struct mbuf *mrecv, struct mbuf *msend);
  203 void    mac_netinet_icmp_replyinplace(struct mbuf *m);
  204 void    mac_netinet_igmp_send(struct ifnet *ifp, struct mbuf *m);
  205 void    mac_netinet_tcp_reply(struct mbuf *m);
  206 
  207 void    mac_netinet6_nd6_send(struct ifnet *ifp, struct mbuf *m);
  208 
  209 int     mac_pipe_check_ioctl(struct ucred *cred, struct pipepair *pp,
  210             unsigned long cmd, void *data);
  211 int     mac_pipe_check_poll_impl(struct ucred *cred, struct pipepair *pp);
  212 #ifdef MAC
  213 extern bool mac_pipe_check_poll_fp_flag;
  214 #else
  215 #define mac_pipe_check_poll_fp_flag 0
  216 #endif
  217 #define mac_pipe_check_poll_enabled() __predict_false(mac_pipe_check_poll_fp_flag)
  218 static inline int
  219 mac_pipe_check_poll(struct ucred *cred, struct pipepair *pp)
  220 {
  221 
  222         if (mac_pipe_check_poll_enabled())
  223                 return (mac_pipe_check_poll_impl(cred, pp));
  224         return (0);
  225 }
  226 
  227 #ifdef MAC
  228 extern bool mac_pipe_check_stat_fp_flag;
  229 #else
  230 #define mac_pipe_check_stat_fp_flag 0
  231 #endif
  232 #define mac_pipe_check_stat_enabled() __predict_false(mac_pipe_check_stat_fp_flag)
  233 int     mac_pipe_check_stat(struct ucred *cred, struct pipepair *pp);
  234 int     mac_pipe_check_read(struct ucred *cred, struct pipepair *pp);
  235 int     mac_pipe_check_write(struct ucred *cred, struct pipepair *pp);
  236 void    mac_pipe_create(struct ucred *cred, struct pipepair *pp);
  237 void    mac_pipe_destroy(struct pipepair *);
  238 void    mac_pipe_init(struct pipepair *);
  239 int     mac_pipe_label_set(struct ucred *cred, struct pipepair *pp,
  240             struct label *label);
  241 
  242 int     mac_posixsem_check_getvalue(struct ucred *active_cred,
  243             struct ucred *file_cred, struct ksem *ks);
  244 int     mac_posixsem_check_open(struct ucred *cred, struct ksem *ks);
  245 int     mac_posixsem_check_post(struct ucred *active_cred,
  246             struct ucred *file_cred, struct ksem *ks);
  247 int     mac_posixsem_check_setmode(struct ucred *cred, struct ksem *ks,
  248             mode_t mode);
  249 int     mac_posixsem_check_setowner(struct ucred *cred, struct ksem *ks,
  250             uid_t uid, gid_t gid);
  251 int     mac_posixsem_check_stat(struct ucred *active_cred,
  252             struct ucred *file_cred, struct ksem *ks);
  253 int     mac_posixsem_check_unlink(struct ucred *cred, struct ksem *ks);
  254 int     mac_posixsem_check_wait(struct ucred *active_cred,
  255             struct ucred *file_cred, struct ksem *ks);
  256 void    mac_posixsem_create(struct ucred *cred, struct ksem *ks);
  257 void    mac_posixsem_destroy(struct ksem *);
  258 void    mac_posixsem_init(struct ksem *);
  259 
  260 int     mac_posixshm_check_create(struct ucred *cred, const char *path);
  261 int     mac_posixshm_check_mmap(struct ucred *cred, struct shmfd *shmfd,
  262             int prot, int flags);
  263 int     mac_posixshm_check_open(struct ucred *cred, struct shmfd *shmfd,
  264             accmode_t accmode);
  265 int     mac_posixshm_check_read(struct ucred *active_cred,
  266             struct ucred *file_cred, struct shmfd *shmfd);
  267 int     mac_posixshm_check_setmode(struct ucred *cred, struct shmfd *shmfd,
  268             mode_t mode);
  269 int     mac_posixshm_check_setowner(struct ucred *cred, struct shmfd *shmfd,
  270             uid_t uid, gid_t gid);
  271 int     mac_posixshm_check_stat(struct ucred *active_cred,
  272             struct ucred *file_cred, struct shmfd *shmfd);
  273 int     mac_posixshm_check_truncate(struct ucred *active_cred,
  274             struct ucred *file_cred, struct shmfd *shmfd);
  275 int     mac_posixshm_check_unlink(struct ucred *cred, struct shmfd *shmfd);
  276 int     mac_posixshm_check_write(struct ucred *active_cred,
  277             struct ucred *file_cred, struct shmfd *shmfd);
  278 void    mac_posixshm_create(struct ucred *cred, struct shmfd *shmfd);
  279 void    mac_posixshm_destroy(struct shmfd *);
  280 void    mac_posixshm_init(struct shmfd *);
  281 
  282 int     mac_priv_check_impl(struct ucred *cred, int priv);
  283 #ifdef MAC
  284 extern bool mac_priv_check_fp_flag;
  285 #else
  286 #define mac_priv_check_fp_flag 0
  287 #endif
  288 #define mac_priv_check_enabled()        __predict_false(mac_priv_check_fp_flag)
  289 static inline int
  290 mac_priv_check(struct ucred *cred, int priv)
  291 {
  292 
  293         if (mac_priv_check_enabled())
  294                 return (mac_priv_check_impl(cred, priv));
  295         return (0);
  296 }
  297 
  298 int     mac_priv_grant_impl(struct ucred *cred, int priv);
  299 #ifdef MAC
  300 extern bool mac_priv_grant_fp_flag;
  301 #else
  302 #define mac_priv_grant_fp_flag 0
  303 #endif
  304 #define mac_priv_grant_enabled()        __predict_false(mac_priv_grant_fp_flag)
  305 static inline int
  306 mac_priv_grant(struct ucred *cred, int priv)
  307 {
  308 
  309         if (mac_priv_grant_enabled())
  310                 return (mac_priv_grant_impl(cred, priv));
  311         return (EPERM);
  312 }
  313 
  314 int     mac_proc_check_debug(struct ucred *cred, struct proc *p);
  315 int     mac_proc_check_sched(struct ucred *cred, struct proc *p);
  316 int     mac_proc_check_signal(struct ucred *cred, struct proc *p,
  317             int signum);
  318 int     mac_proc_check_wait(struct ucred *cred, struct proc *p);
  319 void    mac_proc_destroy(struct proc *);
  320 void    mac_proc_init(struct proc *);
  321 void    mac_proc_vm_revoke(struct thread *td);
  322 int     mac_execve_enter(struct image_params *imgp, struct mac *mac_p);
  323 void    mac_execve_exit(struct image_params *imgp);
  324 void    mac_execve_interpreter_enter(struct vnode *interpvp,
  325             struct label **interplabel);
  326 void    mac_execve_interpreter_exit(struct label *interpvplabel);
  327 
  328 int     mac_socket_check_accept(struct ucred *cred, struct socket *so);
  329 int     mac_socket_check_bind(struct ucred *cred, struct socket *so,
  330             struct sockaddr *sa);
  331 int     mac_socket_check_connect(struct ucred *cred, struct socket *so,
  332             struct sockaddr *sa);
  333 int     mac_socket_check_create(struct ucred *cred, int domain, int type,
  334             int proto);
  335 int     mac_socket_check_deliver(struct socket *so, struct mbuf *m);
  336 int     mac_socket_check_listen(struct ucred *cred, struct socket *so);
  337 int     mac_socket_check_poll(struct ucred *cred, struct socket *so);
  338 int     mac_socket_check_receive(struct ucred *cred, struct socket *so);
  339 int     mac_socket_check_send(struct ucred *cred, struct socket *so);
  340 int     mac_socket_check_stat(struct ucred *cred, struct socket *so);
  341 int     mac_socket_check_visible(struct ucred *cred, struct socket *so);
  342 void    mac_socket_create_mbuf(struct socket *so, struct mbuf *m);
  343 void    mac_socket_create(struct ucred *cred, struct socket *so);
  344 void    mac_socket_destroy(struct socket *);
  345 int     mac_socket_init(struct socket *, int);
  346 void    mac_socket_newconn(struct socket *oldso, struct socket *newso);
  347 int     mac_getsockopt_label(struct ucred *cred, struct socket *so,
  348             struct mac *extmac);
  349 int     mac_getsockopt_peerlabel(struct ucred *cred, struct socket *so,
  350             struct mac *extmac);
  351 int     mac_setsockopt_label(struct ucred *cred, struct socket *so,
  352             struct mac *extmac);
  353 
  354 void    mac_socketpeer_set_from_mbuf(struct mbuf *m, struct socket *so);
  355 void    mac_socketpeer_set_from_socket(struct socket *oldso,
  356             struct socket *newso);
  357 
  358 void    mac_syncache_create(struct label *l, struct inpcb *inp);
  359 void    mac_syncache_create_mbuf(struct label *l, struct mbuf *m);
  360 void    mac_syncache_destroy(struct label **l);
  361 int     mac_syncache_init(struct label **l);
  362 
  363 int     mac_system_check_acct(struct ucred *cred, struct vnode *vp);
  364 int     mac_system_check_audit(struct ucred *cred, void *record, int length);
  365 int     mac_system_check_auditctl(struct ucred *cred, struct vnode *vp);
  366 int     mac_system_check_auditon(struct ucred *cred, int cmd);
  367 int     mac_system_check_reboot(struct ucred *cred, int howto);
  368 int     mac_system_check_swapon(struct ucred *cred, struct vnode *vp);
  369 int     mac_system_check_swapoff(struct ucred *cred, struct vnode *vp);
  370 int     mac_system_check_sysctl(struct ucred *cred, struct sysctl_oid *oidp,
  371             void *arg1, int arg2, struct sysctl_req *req);
  372 
  373 void    mac_sysvmsg_cleanup(struct msg *msgptr);
  374 void    mac_sysvmsg_create(struct ucred *cred, struct msqid_kernel *msqkptr,
  375             struct msg *msgptr);
  376 void    mac_sysvmsg_destroy(struct msg *);
  377 void    mac_sysvmsg_init(struct msg *);
  378 
  379 int     mac_sysvmsq_check_msgmsq(struct ucred *cred, struct msg *msgptr,
  380             struct msqid_kernel *msqkptr);
  381 int     mac_sysvmsq_check_msgrcv(struct ucred *cred, struct msg *msgptr);
  382 int     mac_sysvmsq_check_msgrmid(struct ucred *cred, struct msg *msgptr);
  383 int     mac_sysvmsq_check_msqctl(struct ucred *cred,
  384             struct msqid_kernel *msqkptr, int cmd);
  385 int     mac_sysvmsq_check_msqget(struct ucred *cred,
  386             struct msqid_kernel *msqkptr);
  387 int     mac_sysvmsq_check_msqrcv(struct ucred *cred,
  388             struct msqid_kernel *msqkptr);
  389 int     mac_sysvmsq_check_msqsnd(struct ucred *cred,
  390             struct msqid_kernel *msqkptr);
  391 void    mac_sysvmsq_cleanup(struct msqid_kernel *msqkptr);
  392 void    mac_sysvmsq_create(struct ucred *cred, struct msqid_kernel *msqkptr);
  393 void    mac_sysvmsq_destroy(struct msqid_kernel *);
  394 void    mac_sysvmsq_init(struct msqid_kernel *);
  395 
  396 int     mac_sysvsem_check_semctl(struct ucred *cred,
  397             struct semid_kernel *semakptr, int cmd);
  398 int     mac_sysvsem_check_semget(struct ucred *cred,
  399            struct semid_kernel *semakptr);
  400 int     mac_sysvsem_check_semop(struct ucred *cred,
  401             struct semid_kernel *semakptr, size_t accesstype);
  402 void    mac_sysvsem_cleanup(struct semid_kernel *semakptr);
  403 void    mac_sysvsem_create(struct ucred *cred,
  404             struct semid_kernel *semakptr);
  405 void    mac_sysvsem_destroy(struct semid_kernel *);
  406 void    mac_sysvsem_init(struct semid_kernel *);
  407 
  408 int     mac_sysvshm_check_shmat(struct ucred *cred,
  409             struct shmid_kernel *shmsegptr, int shmflg);
  410 int     mac_sysvshm_check_shmctl(struct ucred *cred,
  411             struct shmid_kernel *shmsegptr, int cmd);
  412 int     mac_sysvshm_check_shmdt(struct ucred *cred,
  413             struct shmid_kernel *shmsegptr);
  414 int     mac_sysvshm_check_shmget(struct ucred *cred,
  415             struct shmid_kernel *shmsegptr, int shmflg);
  416 void    mac_sysvshm_cleanup(struct shmid_kernel *shmsegptr);
  417 void    mac_sysvshm_create(struct ucred *cred,
  418             struct shmid_kernel *shmsegptr);
  419 void    mac_sysvshm_destroy(struct shmid_kernel *);
  420 void    mac_sysvshm_init(struct shmid_kernel *);
  421 
  422 void    mac_thread_userret(struct thread *td);
  423 
  424 #if defined(MAC) && defined(DEBUG_VFS_LOCKS)
  425 void    mac_vnode_assert_locked(struct vnode *vp, const char *func);
  426 #else
  427 #define mac_vnode_assert_locked(vp, func) do { } while (0)
  428 #endif
  429 
  430 int     mac_vnode_associate_extattr(struct mount *mp, struct vnode *vp);
  431 void    mac_vnode_associate_singlelabel(struct mount *mp, struct vnode *vp);
  432 int     mac_vnode_check_access_impl(struct ucred *cred, struct vnode *dvp,
  433             accmode_t accmode);
  434 extern bool mac_vnode_check_access_fp_flag;
  435 #define mac_vnode_check_access_enabled() __predict_false(mac_vnode_check_access_fp_flag)
  436 static inline int
  437 mac_vnode_check_access(struct ucred *cred, struct vnode *dvp,
  438     accmode_t accmode)
  439 {
  440 
  441         mac_vnode_assert_locked(dvp, "mac_vnode_check_access");
  442         if (mac_vnode_check_access_enabled())
  443                 return (mac_vnode_check_access_impl(cred, dvp, accmode));
  444         return (0);
  445 }
  446 int     mac_vnode_check_chdir(struct ucred *cred, struct vnode *dvp);
  447 int     mac_vnode_check_chroot(struct ucred *cred, struct vnode *dvp);
  448 int     mac_vnode_check_create(struct ucred *cred, struct vnode *dvp,
  449             struct componentname *cnp, struct vattr *vap);
  450 int     mac_vnode_check_deleteacl(struct ucred *cred, struct vnode *vp,
  451             acl_type_t type);
  452 int     mac_vnode_check_deleteextattr(struct ucred *cred, struct vnode *vp,
  453             int attrnamespace, const char *name);
  454 int     mac_vnode_check_exec(struct ucred *cred, struct vnode *vp,
  455             struct image_params *imgp);
  456 int     mac_vnode_check_getacl(struct ucred *cred, struct vnode *vp,
  457             acl_type_t type);
  458 int     mac_vnode_check_getextattr(struct ucred *cred, struct vnode *vp,
  459             int attrnamespace, const char *name);
  460 int     mac_vnode_check_link(struct ucred *cred, struct vnode *dvp,
  461             struct vnode *vp, struct componentname *cnp);
  462 int     mac_vnode_check_listextattr(struct ucred *cred, struct vnode *vp,
  463             int attrnamespace);
  464 
  465 int     mac_vnode_check_lookup_impl(struct ucred *cred, struct vnode *dvp,
  466             struct componentname *cnp);
  467 #ifdef MAC
  468 extern bool mac_vnode_check_lookup_fp_flag;
  469 #else
  470 #define mac_vnode_check_lookup_fp_flag 0
  471 #endif
  472 #define mac_vnode_check_lookup_enabled() __predict_false(mac_vnode_check_lookup_fp_flag)
  473 static inline int
  474 mac_vnode_check_lookup(struct ucred *cred, struct vnode *dvp,
  475     struct componentname *cnp)
  476 {
  477 
  478         mac_vnode_assert_locked(dvp, "mac_vnode_check_lookup");
  479         if (mac_vnode_check_lookup_enabled())
  480                 return (mac_vnode_check_lookup_impl(cred, dvp, cnp));
  481         return (0);
  482 }
  483 
  484 int     mac_vnode_check_mmap_impl(struct ucred *cred, struct vnode *vp, int prot,
  485             int flags);
  486 #ifdef MAC
  487 extern bool mac_vnode_check_mmap_fp_flag;
  488 #else
  489 #define mac_vnode_check_mmap_fp_flag 0
  490 #endif
  491 #define mac_vnode_check_mmap_enabled() __predict_false(mac_vnode_check_mmap_fp_flag)
  492 static inline int
  493 mac_vnode_check_mmap(struct ucred *cred, struct vnode *vp, int prot,
  494     int flags)
  495 {
  496 
  497         mac_vnode_assert_locked(vp, "mac_vnode_check_mmap");
  498         if (mac_vnode_check_mmap_enabled())
  499                 return (mac_vnode_check_mmap_impl(cred, vp, prot, flags));
  500         return (0);
  501 }
  502 
  503 int     mac_vnode_check_open_impl(struct ucred *cred, struct vnode *vp,
  504             accmode_t accmode);
  505 #ifdef MAC
  506 extern bool mac_vnode_check_open_fp_flag;
  507 #else
  508 #define mac_vnode_check_open_fp_flag 0
  509 #endif
  510 #define mac_vnode_check_open_enabled() __predict_false(mac_vnode_check_open_fp_flag)
  511 static inline int
  512 mac_vnode_check_open(struct ucred *cred, struct vnode *vp,
  513     accmode_t accmode)
  514 {
  515 
  516         mac_vnode_assert_locked(vp, "mac_vnode_check_open");
  517         if (mac_vnode_check_open_enabled())
  518                 return (mac_vnode_check_open_impl(cred, vp, accmode));
  519         return (0);
  520 }
  521 
  522 int     mac_vnode_check_mprotect(struct ucred *cred, struct vnode *vp,
  523             int prot);
  524 
  525 #define mac_vnode_check_poll_enabled() __predict_false(mac_vnode_check_poll_fp_flag)
  526 #ifdef MAC
  527 extern bool mac_vnode_check_poll_fp_flag;
  528 int     mac_vnode_check_poll(struct ucred *active_cred,
  529             struct ucred *file_cred, struct vnode *vp);
  530 #else
  531 #define mac_vnode_check_poll_fp_flag    0
  532 static inline int
  533 mac_vnode_check_poll(struct ucred *active_cred, struct ucred *file_cred,
  534     struct vnode *vp)
  535 {
  536 
  537         return (0);
  538 }
  539 #endif
  540 int     mac_vnode_check_readdir(struct ucred *cred, struct vnode *vp);
  541 int     mac_vnode_check_readlink_impl(struct ucred *cred, struct vnode *dvp);
  542 #ifdef MAC
  543 extern bool mac_vnode_check_readlink_fp_flag;
  544 #else
  545 #define mac_vnode_check_readlink_fp_flag 0
  546 #endif
  547 #define mac_vnode_check_readlink_enabled() __predict_false(mac_vnode_check_readlink_fp_flag)
  548 static inline int
  549 mac_vnode_check_readlink(struct ucred *cred, struct vnode *vp)
  550 {
  551 
  552         mac_vnode_assert_locked(vp, "mac_vnode_check_readlink");
  553         if (mac_vnode_check_readlink_enabled())
  554                 return (mac_vnode_check_readlink_impl(cred, vp));
  555         return (0);
  556 }
  557 #define mac_vnode_check_rename_from_enabled() __predict_false(mac_vnode_check_rename_from_fp_flag)
  558 #ifdef MAC
  559 extern bool mac_vnode_check_rename_from_fp_flag;
  560 #endif
  561 int     mac_vnode_check_rename_from(struct ucred *cred, struct vnode *dvp,
  562             struct vnode *vp, struct componentname *cnp);
  563 int     mac_vnode_check_rename_to(struct ucred *cred, struct vnode *dvp,
  564             struct vnode *vp, int samedir, struct componentname *cnp);
  565 int     mac_vnode_check_revoke(struct ucred *cred, struct vnode *vp);
  566 int     mac_vnode_check_setacl(struct ucred *cred, struct vnode *vp,
  567             acl_type_t type, struct acl *acl);
  568 int     mac_vnode_check_setextattr(struct ucred *cred, struct vnode *vp,
  569             int attrnamespace, const char *name);
  570 int     mac_vnode_check_setflags(struct ucred *cred, struct vnode *vp,
  571             u_long flags);
  572 int     mac_vnode_check_setmode(struct ucred *cred, struct vnode *vp,
  573             mode_t mode);
  574 int     mac_vnode_check_setowner(struct ucred *cred, struct vnode *vp,
  575             uid_t uid, gid_t gid);
  576 int     mac_vnode_check_setutimes(struct ucred *cred, struct vnode *vp,
  577             struct timespec atime, struct timespec mtime);
  578 
  579 int     mac_vnode_check_stat_impl(struct ucred *active_cred,
  580             struct ucred *file_cred, struct vnode *vp);
  581 #ifdef MAC
  582 extern bool mac_vnode_check_stat_fp_flag;
  583 #else
  584 #define mac_vnode_check_stat_fp_flag 0
  585 #endif
  586 #define mac_vnode_check_stat_enabled()  __predict_false(mac_vnode_check_stat_fp_flag)
  587 static inline int
  588 mac_vnode_check_stat(struct ucred *active_cred, struct ucred *file_cred,
  589     struct vnode *vp)
  590 {
  591 
  592         mac_vnode_assert_locked(vp, "mac_vnode_check_stat");
  593         if (mac_vnode_check_stat_enabled())
  594                 return (mac_vnode_check_stat_impl(active_cred, file_cred, vp));
  595         return (0);
  596 }
  597 
  598 int     mac_vnode_check_read_impl(struct ucred *active_cred,
  599             struct ucred *file_cred, struct vnode *vp);
  600 #ifdef MAC
  601 extern bool mac_vnode_check_read_fp_flag;
  602 #else
  603 #define mac_vnode_check_read_fp_flag 0
  604 #endif
  605 #define mac_vnode_check_read_enabled() __predict_false(mac_vnode_check_read_fp_flag)
  606 static inline int
  607 mac_vnode_check_read(struct ucred *active_cred, struct ucred *file_cred,
  608     struct vnode *vp)
  609 {
  610 
  611         mac_vnode_assert_locked(vp, "mac_vnode_check_read");
  612         if (mac_vnode_check_read_enabled())
  613                 return (mac_vnode_check_read_impl(active_cred, file_cred, vp));
  614         return (0);
  615 }
  616 
  617 int     mac_vnode_check_write_impl(struct ucred *active_cred,
  618             struct ucred *file_cred, struct vnode *vp);
  619 #ifdef MAC
  620 extern bool mac_vnode_check_write_fp_flag;
  621 #else
  622 #define mac_vnode_check_write_fp_flag 0
  623 #endif
  624 #define mac_vnode_check_write_enabled() __predict_false(mac_vnode_check_write_fp_flag)
  625 static inline int
  626 mac_vnode_check_write(struct ucred *active_cred, struct ucred *file_cred,
  627     struct vnode *vp)
  628 {
  629 
  630         mac_vnode_assert_locked(vp, "mac_vnode_check_write");
  631         if (mac_vnode_check_write_enabled())
  632                 return (mac_vnode_check_write_impl(active_cred, file_cred, vp));
  633         return (0);
  634 }
  635 
  636 int     mac_vnode_check_unlink(struct ucred *cred, struct vnode *dvp,
  637             struct vnode *vp, struct componentname *cnp);
  638 void    mac_vnode_copy_label(struct label *, struct label *);
  639 void    mac_vnode_init(struct vnode *);
  640 int     mac_vnode_create_extattr(struct ucred *cred, struct mount *mp,
  641             struct vnode *dvp, struct vnode *vp, struct componentname *cnp);
  642 void    mac_vnode_destroy(struct vnode *);
  643 void    mac_vnode_execve_transition(struct ucred *oldcred,
  644             struct ucred *newcred, struct vnode *vp,
  645             struct label *interpvplabel, struct image_params *imgp);
  646 int     mac_vnode_execve_will_transition(struct ucred *cred,
  647             struct vnode *vp, struct label *interpvplabel,
  648             struct image_params *imgp);
  649 void    mac_vnode_relabel(struct ucred *cred, struct vnode *vp,
  650             struct label *newlabel);
  651 
  652 /*
  653  * Calls to help various file systems implement labeling functionality using
  654  * their existing EA implementation.
  655  */
  656 int     vop_stdsetlabel_ea(struct vop_setlabel_args *ap);
  657 
  658 #endif /* !_SECURITY_MAC_MAC_FRAMEWORK_H_ */

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