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_impl(struct ifnet *ifp, struct mbuf *m);
  147 #ifdef MAC
  148 extern bool mac_ifnet_check_transmit_fp_flag;
  149 #else
  150 #define mac_ifnet_check_transmit_fp_flag 0
  151 #endif
  152 #define mac_ifnet_check_transmit_enabled() __predict_false(mac_ifnet_check_transmit_fp_flag)
  153 static inline int
  154 mac_ifnet_check_transmit(struct ifnet *ifp, struct mbuf *m)
  155 {
  156 
  157         if (mac_ifnet_check_transmit_enabled())
  158                 return (mac_ifnet_check_transmit_impl(ifp, m));
  159         return (0);
  160 }
  161 
  162 void    mac_ifnet_create(struct ifnet *ifp);
  163 
  164 void    mac_ifnet_create_mbuf_impl(struct ifnet *ifp, struct mbuf *m);
  165 #ifdef MAC
  166 extern bool mac_ifnet_create_mbuf_fp_flag;
  167 #else
  168 #define mac_ifnet_create_mbuf_fp_flag 0
  169 #endif
  170 #define mac_ifnet_create_mbuf_enabled() __predict_false(mac_ifnet_create_mbuf_fp_flag)
  171 static inline void
  172 mac_ifnet_create_mbuf(struct ifnet *ifp, struct mbuf *m)
  173 {
  174 
  175         if (mac_ifnet_create_mbuf_enabled())
  176                 mac_ifnet_create_mbuf_impl(ifp, m);
  177 }
  178 
  179 void    mac_ifnet_destroy(struct ifnet *);
  180 void    mac_ifnet_init(struct ifnet *);
  181 int     mac_ifnet_ioctl_get(struct ucred *cred, struct ifreq *ifr,
  182             struct ifnet *ifp);
  183 int     mac_ifnet_ioctl_set(struct ucred *cred, struct ifreq *ifr,
  184             struct ifnet *ifp);
  185 
  186 int     mac_inpcb_check_deliver(struct inpcb *inp, struct mbuf *m);
  187 int     mac_inpcb_check_visible(struct ucred *cred, struct inpcb *inp);
  188 void    mac_inpcb_create(struct socket *so, struct inpcb *inp);
  189 void    mac_inpcb_create_mbuf(struct inpcb *inp, struct mbuf *m);
  190 void    mac_inpcb_destroy(struct inpcb *);
  191 int     mac_inpcb_init(struct inpcb *, int);
  192 void    mac_inpcb_sosetlabel(struct socket *so, struct inpcb *inp);
  193 
  194 void    mac_ip6q_create(struct mbuf *m, struct ip6q *q6);
  195 void    mac_ip6q_destroy(struct ip6q *q6);
  196 int     mac_ip6q_init(struct ip6q *q6, int);
  197 int     mac_ip6q_match(struct mbuf *m, struct ip6q *q6);
  198 void    mac_ip6q_reassemble(struct ip6q *q6, struct mbuf *m);
  199 void    mac_ip6q_update(struct mbuf *m, struct ip6q *q6);
  200 
  201 void    mac_ipq_create(struct mbuf *m, struct ipq *q);
  202 void    mac_ipq_destroy(struct ipq *q);
  203 int     mac_ipq_init(struct ipq *q, int);
  204 int     mac_ipq_match(struct mbuf *m, struct ipq *q);
  205 void    mac_ipq_reassemble(struct ipq *q, struct mbuf *m);
  206 void    mac_ipq_update(struct mbuf *m, struct ipq *q);
  207 
  208 int     mac_kenv_check_dump(struct ucred *cred);
  209 int     mac_kenv_check_get(struct ucred *cred, char *name);
  210 int     mac_kenv_check_set(struct ucred *cred, char *name, char *value);
  211 int     mac_kenv_check_unset(struct ucred *cred, char *name);
  212 
  213 int     mac_kld_check_load(struct ucred *cred, struct vnode *vp);
  214 int     mac_kld_check_stat(struct ucred *cred);
  215 
  216 void    mac_mbuf_copy(struct mbuf *, struct mbuf *);
  217 int     mac_mbuf_init(struct mbuf *, int);
  218 
  219 void    mac_mbuf_tag_copy(struct m_tag *, struct m_tag *);
  220 void    mac_mbuf_tag_destroy(struct m_tag *);
  221 int     mac_mbuf_tag_init(struct m_tag *, int);
  222 
  223 int     mac_mount_check_stat(struct ucred *cred, struct mount *mp);
  224 void    mac_mount_create(struct ucred *cred, struct mount *mp);
  225 void    mac_mount_destroy(struct mount *);
  226 void    mac_mount_init(struct mount *);
  227 
  228 void    mac_netinet_arp_send(struct ifnet *ifp, struct mbuf *m);
  229 void    mac_netinet_firewall_reply(struct mbuf *mrecv, struct mbuf *msend);
  230 void    mac_netinet_firewall_send(struct mbuf *m);
  231 void    mac_netinet_fragment(struct mbuf *m, struct mbuf *frag);
  232 void    mac_netinet_icmp_reply(struct mbuf *mrecv, struct mbuf *msend);
  233 void    mac_netinet_icmp_replyinplace(struct mbuf *m);
  234 void    mac_netinet_igmp_send(struct ifnet *ifp, struct mbuf *m);
  235 void    mac_netinet_tcp_reply(struct mbuf *m);
  236 
  237 void    mac_netinet6_nd6_send(struct ifnet *ifp, struct mbuf *m);
  238 
  239 int     mac_pipe_check_ioctl(struct ucred *cred, struct pipepair *pp,
  240             unsigned long cmd, void *data);
  241 int     mac_pipe_check_poll_impl(struct ucred *cred, struct pipepair *pp);
  242 #ifdef MAC
  243 extern bool mac_pipe_check_poll_fp_flag;
  244 #else
  245 #define mac_pipe_check_poll_fp_flag 0
  246 #endif
  247 #define mac_pipe_check_poll_enabled() __predict_false(mac_pipe_check_poll_fp_flag)
  248 static inline int
  249 mac_pipe_check_poll(struct ucred *cred, struct pipepair *pp)
  250 {
  251 
  252         if (mac_pipe_check_poll_enabled())
  253                 return (mac_pipe_check_poll_impl(cred, pp));
  254         return (0);
  255 }
  256 
  257 #ifdef MAC
  258 extern bool mac_pipe_check_stat_fp_flag;
  259 #else
  260 #define mac_pipe_check_stat_fp_flag 0
  261 #endif
  262 #define mac_pipe_check_stat_enabled() __predict_false(mac_pipe_check_stat_fp_flag)
  263 int     mac_pipe_check_stat(struct ucred *cred, struct pipepair *pp);
  264 int     mac_pipe_check_read(struct ucred *cred, struct pipepair *pp);
  265 int     mac_pipe_check_write(struct ucred *cred, struct pipepair *pp);
  266 void    mac_pipe_create(struct ucred *cred, struct pipepair *pp);
  267 void    mac_pipe_destroy(struct pipepair *);
  268 void    mac_pipe_init(struct pipepair *);
  269 int     mac_pipe_label_set(struct ucred *cred, struct pipepair *pp,
  270             struct label *label);
  271 
  272 int     mac_posixsem_check_getvalue(struct ucred *active_cred,
  273             struct ucred *file_cred, struct ksem *ks);
  274 int     mac_posixsem_check_open(struct ucred *cred, struct ksem *ks);
  275 int     mac_posixsem_check_post(struct ucred *active_cred,
  276             struct ucred *file_cred, struct ksem *ks);
  277 int     mac_posixsem_check_setmode(struct ucred *cred, struct ksem *ks,
  278             mode_t mode);
  279 int     mac_posixsem_check_setowner(struct ucred *cred, struct ksem *ks,
  280             uid_t uid, gid_t gid);
  281 int     mac_posixsem_check_stat(struct ucred *active_cred,
  282             struct ucred *file_cred, struct ksem *ks);
  283 int     mac_posixsem_check_unlink(struct ucred *cred, struct ksem *ks);
  284 int     mac_posixsem_check_wait(struct ucred *active_cred,
  285             struct ucred *file_cred, struct ksem *ks);
  286 void    mac_posixsem_create(struct ucred *cred, struct ksem *ks);
  287 void    mac_posixsem_destroy(struct ksem *);
  288 void    mac_posixsem_init(struct ksem *);
  289 
  290 int     mac_posixshm_check_create(struct ucred *cred, const char *path);
  291 int     mac_posixshm_check_mmap(struct ucred *cred, struct shmfd *shmfd,
  292             int prot, int flags);
  293 int     mac_posixshm_check_open(struct ucred *cred, struct shmfd *shmfd,
  294             accmode_t accmode);
  295 int     mac_posixshm_check_read(struct ucred *active_cred,
  296             struct ucred *file_cred, struct shmfd *shmfd);
  297 int     mac_posixshm_check_setmode(struct ucred *cred, struct shmfd *shmfd,
  298             mode_t mode);
  299 int     mac_posixshm_check_setowner(struct ucred *cred, struct shmfd *shmfd,
  300             uid_t uid, gid_t gid);
  301 int     mac_posixshm_check_stat(struct ucred *active_cred,
  302             struct ucred *file_cred, struct shmfd *shmfd);
  303 int     mac_posixshm_check_truncate(struct ucred *active_cred,
  304             struct ucred *file_cred, struct shmfd *shmfd);
  305 int     mac_posixshm_check_unlink(struct ucred *cred, struct shmfd *shmfd);
  306 int     mac_posixshm_check_write(struct ucred *active_cred,
  307             struct ucred *file_cred, struct shmfd *shmfd);
  308 void    mac_posixshm_create(struct ucred *cred, struct shmfd *shmfd);
  309 void    mac_posixshm_destroy(struct shmfd *);
  310 void    mac_posixshm_init(struct shmfd *);
  311 
  312 int     mac_priv_check_impl(struct ucred *cred, int priv);
  313 #ifdef MAC
  314 extern bool mac_priv_check_fp_flag;
  315 #else
  316 #define mac_priv_check_fp_flag 0
  317 #endif
  318 #define mac_priv_check_enabled()        __predict_false(mac_priv_check_fp_flag)
  319 static inline int
  320 mac_priv_check(struct ucred *cred, int priv)
  321 {
  322 
  323         if (mac_priv_check_enabled())
  324                 return (mac_priv_check_impl(cred, priv));
  325         return (0);
  326 }
  327 
  328 int     mac_priv_grant_impl(struct ucred *cred, int priv);
  329 #ifdef MAC
  330 extern bool mac_priv_grant_fp_flag;
  331 #else
  332 #define mac_priv_grant_fp_flag 0
  333 #endif
  334 #define mac_priv_grant_enabled()        __predict_false(mac_priv_grant_fp_flag)
  335 static inline int
  336 mac_priv_grant(struct ucred *cred, int priv)
  337 {
  338 
  339         if (mac_priv_grant_enabled())
  340                 return (mac_priv_grant_impl(cred, priv));
  341         return (EPERM);
  342 }
  343 
  344 int     mac_proc_check_debug(struct ucred *cred, struct proc *p);
  345 int     mac_proc_check_sched(struct ucred *cred, struct proc *p);
  346 int     mac_proc_check_signal(struct ucred *cred, struct proc *p,
  347             int signum);
  348 int     mac_proc_check_wait(struct ucred *cred, struct proc *p);
  349 void    mac_proc_destroy(struct proc *);
  350 void    mac_proc_init(struct proc *);
  351 void    mac_proc_vm_revoke(struct thread *td);
  352 int     mac_execve_enter(struct image_params *imgp, struct mac *mac_p);
  353 void    mac_execve_exit(struct image_params *imgp);
  354 void    mac_execve_interpreter_enter(struct vnode *interpvp,
  355             struct label **interplabel);
  356 void    mac_execve_interpreter_exit(struct label *interpvplabel);
  357 
  358 int     mac_socket_check_accept(struct ucred *cred, struct socket *so);
  359 int     mac_socket_check_bind(struct ucred *cred, struct socket *so,
  360             struct sockaddr *sa);
  361 int     mac_socket_check_connect(struct ucred *cred, struct socket *so,
  362             struct sockaddr *sa);
  363 int     mac_socket_check_create(struct ucred *cred, int domain, int type,
  364             int proto);
  365 int     mac_socket_check_deliver(struct socket *so, struct mbuf *m);
  366 int     mac_socket_check_listen(struct ucred *cred, struct socket *so);
  367 int     mac_socket_check_poll(struct ucred *cred, struct socket *so);
  368 int     mac_socket_check_receive(struct ucred *cred, struct socket *so);
  369 int     mac_socket_check_send(struct ucred *cred, struct socket *so);
  370 int     mac_socket_check_stat(struct ucred *cred, struct socket *so);
  371 int     mac_socket_check_visible(struct ucred *cred, struct socket *so);
  372 void    mac_socket_create_mbuf(struct socket *so, struct mbuf *m);
  373 void    mac_socket_create(struct ucred *cred, struct socket *so);
  374 void    mac_socket_destroy(struct socket *);
  375 int     mac_socket_init(struct socket *, int);
  376 void    mac_socket_newconn(struct socket *oldso, struct socket *newso);
  377 int     mac_getsockopt_label(struct ucred *cred, struct socket *so,
  378             struct mac *extmac);
  379 int     mac_getsockopt_peerlabel(struct ucred *cred, struct socket *so,
  380             struct mac *extmac);
  381 int     mac_setsockopt_label(struct ucred *cred, struct socket *so,
  382             struct mac *extmac);
  383 
  384 void    mac_socketpeer_set_from_mbuf(struct mbuf *m, struct socket *so);
  385 void    mac_socketpeer_set_from_socket(struct socket *oldso,
  386             struct socket *newso);
  387 
  388 void    mac_syncache_create(struct label *l, struct inpcb *inp);
  389 void    mac_syncache_create_mbuf(struct label *l, struct mbuf *m);
  390 void    mac_syncache_destroy(struct label **l);
  391 int     mac_syncache_init(struct label **l);
  392 
  393 int     mac_system_check_acct(struct ucred *cred, struct vnode *vp);
  394 int     mac_system_check_audit(struct ucred *cred, void *record, int length);
  395 int     mac_system_check_auditctl(struct ucred *cred, struct vnode *vp);
  396 int     mac_system_check_auditon(struct ucred *cred, int cmd);
  397 int     mac_system_check_reboot(struct ucred *cred, int howto);
  398 int     mac_system_check_swapon(struct ucred *cred, struct vnode *vp);
  399 int     mac_system_check_swapoff(struct ucred *cred, struct vnode *vp);
  400 int     mac_system_check_sysctl(struct ucred *cred, struct sysctl_oid *oidp,
  401             void *arg1, int arg2, struct sysctl_req *req);
  402 
  403 void    mac_sysvmsg_cleanup(struct msg *msgptr);
  404 void    mac_sysvmsg_create(struct ucred *cred, struct msqid_kernel *msqkptr,
  405             struct msg *msgptr);
  406 void    mac_sysvmsg_destroy(struct msg *);
  407 void    mac_sysvmsg_init(struct msg *);
  408 
  409 int     mac_sysvmsq_check_msgmsq(struct ucred *cred, struct msg *msgptr,
  410             struct msqid_kernel *msqkptr);
  411 int     mac_sysvmsq_check_msgrcv(struct ucred *cred, struct msg *msgptr);
  412 int     mac_sysvmsq_check_msgrmid(struct ucred *cred, struct msg *msgptr);
  413 int     mac_sysvmsq_check_msqctl(struct ucred *cred,
  414             struct msqid_kernel *msqkptr, int cmd);
  415 int     mac_sysvmsq_check_msqget(struct ucred *cred,
  416             struct msqid_kernel *msqkptr);
  417 int     mac_sysvmsq_check_msqrcv(struct ucred *cred,
  418             struct msqid_kernel *msqkptr);
  419 int     mac_sysvmsq_check_msqsnd(struct ucred *cred,
  420             struct msqid_kernel *msqkptr);
  421 void    mac_sysvmsq_cleanup(struct msqid_kernel *msqkptr);
  422 void    mac_sysvmsq_create(struct ucred *cred, struct msqid_kernel *msqkptr);
  423 void    mac_sysvmsq_destroy(struct msqid_kernel *);
  424 void    mac_sysvmsq_init(struct msqid_kernel *);
  425 
  426 int     mac_sysvsem_check_semctl(struct ucred *cred,
  427             struct semid_kernel *semakptr, int cmd);
  428 int     mac_sysvsem_check_semget(struct ucred *cred,
  429            struct semid_kernel *semakptr);
  430 int     mac_sysvsem_check_semop(struct ucred *cred,
  431             struct semid_kernel *semakptr, size_t accesstype);
  432 void    mac_sysvsem_cleanup(struct semid_kernel *semakptr);
  433 void    mac_sysvsem_create(struct ucred *cred,
  434             struct semid_kernel *semakptr);
  435 void    mac_sysvsem_destroy(struct semid_kernel *);
  436 void    mac_sysvsem_init(struct semid_kernel *);
  437 
  438 int     mac_sysvshm_check_shmat(struct ucred *cred,
  439             struct shmid_kernel *shmsegptr, int shmflg);
  440 int     mac_sysvshm_check_shmctl(struct ucred *cred,
  441             struct shmid_kernel *shmsegptr, int cmd);
  442 int     mac_sysvshm_check_shmdt(struct ucred *cred,
  443             struct shmid_kernel *shmsegptr);
  444 int     mac_sysvshm_check_shmget(struct ucred *cred,
  445             struct shmid_kernel *shmsegptr, int shmflg);
  446 void    mac_sysvshm_cleanup(struct shmid_kernel *shmsegptr);
  447 void    mac_sysvshm_create(struct ucred *cred,
  448             struct shmid_kernel *shmsegptr);
  449 void    mac_sysvshm_destroy(struct shmid_kernel *);
  450 void    mac_sysvshm_init(struct shmid_kernel *);
  451 
  452 void    mac_thread_userret(struct thread *td);
  453 
  454 #if defined(MAC) && defined(DEBUG_VFS_LOCKS)
  455 void    mac_vnode_assert_locked(struct vnode *vp, const char *func);
  456 #else
  457 #define mac_vnode_assert_locked(vp, func) do { } while (0)
  458 #endif
  459 
  460 int     mac_vnode_associate_extattr(struct mount *mp, struct vnode *vp);
  461 void    mac_vnode_associate_singlelabel(struct mount *mp, struct vnode *vp);
  462 int     mac_vnode_check_access_impl(struct ucred *cred, struct vnode *dvp,
  463             accmode_t accmode);
  464 extern bool mac_vnode_check_access_fp_flag;
  465 #define mac_vnode_check_access_enabled() __predict_false(mac_vnode_check_access_fp_flag)
  466 static inline int
  467 mac_vnode_check_access(struct ucred *cred, struct vnode *dvp,
  468     accmode_t accmode)
  469 {
  470 
  471         mac_vnode_assert_locked(dvp, "mac_vnode_check_access");
  472         if (mac_vnode_check_access_enabled())
  473                 return (mac_vnode_check_access_impl(cred, dvp, accmode));
  474         return (0);
  475 }
  476 int     mac_vnode_check_chdir(struct ucred *cred, struct vnode *dvp);
  477 int     mac_vnode_check_chroot(struct ucred *cred, struct vnode *dvp);
  478 int     mac_vnode_check_create(struct ucred *cred, struct vnode *dvp,
  479             struct componentname *cnp, struct vattr *vap);
  480 int     mac_vnode_check_deleteacl(struct ucred *cred, struct vnode *vp,
  481             acl_type_t type);
  482 int     mac_vnode_check_deleteextattr(struct ucred *cred, struct vnode *vp,
  483             int attrnamespace, const char *name);
  484 int     mac_vnode_check_exec(struct ucred *cred, struct vnode *vp,
  485             struct image_params *imgp);
  486 int     mac_vnode_check_getacl(struct ucred *cred, struct vnode *vp,
  487             acl_type_t type);
  488 int     mac_vnode_check_getextattr(struct ucred *cred, struct vnode *vp,
  489             int attrnamespace, const char *name);
  490 int     mac_vnode_check_link(struct ucred *cred, struct vnode *dvp,
  491             struct vnode *vp, struct componentname *cnp);
  492 int     mac_vnode_check_listextattr(struct ucred *cred, struct vnode *vp,
  493             int attrnamespace);
  494 
  495 int     mac_vnode_check_lookup_impl(struct ucred *cred, struct vnode *dvp,
  496             struct componentname *cnp);
  497 #ifdef MAC
  498 extern bool mac_vnode_check_lookup_fp_flag;
  499 #else
  500 #define mac_vnode_check_lookup_fp_flag 0
  501 #endif
  502 #define mac_vnode_check_lookup_enabled() __predict_false(mac_vnode_check_lookup_fp_flag)
  503 static inline int
  504 mac_vnode_check_lookup(struct ucred *cred, struct vnode *dvp,
  505     struct componentname *cnp)
  506 {
  507 
  508         mac_vnode_assert_locked(dvp, "mac_vnode_check_lookup");
  509         if (mac_vnode_check_lookup_enabled())
  510                 return (mac_vnode_check_lookup_impl(cred, dvp, cnp));
  511         return (0);
  512 }
  513 
  514 int     mac_vnode_check_mmap_impl(struct ucred *cred, struct vnode *vp, int prot,
  515             int flags);
  516 #ifdef MAC
  517 extern bool mac_vnode_check_mmap_fp_flag;
  518 #else
  519 #define mac_vnode_check_mmap_fp_flag 0
  520 #endif
  521 #define mac_vnode_check_mmap_enabled() __predict_false(mac_vnode_check_mmap_fp_flag)
  522 static inline int
  523 mac_vnode_check_mmap(struct ucred *cred, struct vnode *vp, int prot,
  524     int flags)
  525 {
  526 
  527         mac_vnode_assert_locked(vp, "mac_vnode_check_mmap");
  528         if (mac_vnode_check_mmap_enabled())
  529                 return (mac_vnode_check_mmap_impl(cred, vp, prot, flags));
  530         return (0);
  531 }
  532 
  533 int     mac_vnode_check_open_impl(struct ucred *cred, struct vnode *vp,
  534             accmode_t accmode);
  535 #ifdef MAC
  536 extern bool mac_vnode_check_open_fp_flag;
  537 #else
  538 #define mac_vnode_check_open_fp_flag 0
  539 #endif
  540 #define mac_vnode_check_open_enabled() __predict_false(mac_vnode_check_open_fp_flag)
  541 static inline int
  542 mac_vnode_check_open(struct ucred *cred, struct vnode *vp,
  543     accmode_t accmode)
  544 {
  545 
  546         mac_vnode_assert_locked(vp, "mac_vnode_check_open");
  547         if (mac_vnode_check_open_enabled())
  548                 return (mac_vnode_check_open_impl(cred, vp, accmode));
  549         return (0);
  550 }
  551 
  552 int     mac_vnode_check_mprotect(struct ucred *cred, struct vnode *vp,
  553             int prot);
  554 
  555 #define mac_vnode_check_poll_enabled() __predict_false(mac_vnode_check_poll_fp_flag)
  556 #ifdef MAC
  557 extern bool mac_vnode_check_poll_fp_flag;
  558 int     mac_vnode_check_poll(struct ucred *active_cred,
  559             struct ucred *file_cred, struct vnode *vp);
  560 #else
  561 #define mac_vnode_check_poll_fp_flag    0
  562 static inline int
  563 mac_vnode_check_poll(struct ucred *active_cred, struct ucred *file_cred,
  564     struct vnode *vp)
  565 {
  566 
  567         return (0);
  568 }
  569 #endif
  570 int     mac_vnode_check_readdir(struct ucred *cred, struct vnode *vp);
  571 int     mac_vnode_check_readlink_impl(struct ucred *cred, struct vnode *dvp);
  572 #ifdef MAC
  573 extern bool mac_vnode_check_readlink_fp_flag;
  574 #else
  575 #define mac_vnode_check_readlink_fp_flag 0
  576 #endif
  577 #define mac_vnode_check_readlink_enabled() __predict_false(mac_vnode_check_readlink_fp_flag)
  578 static inline int
  579 mac_vnode_check_readlink(struct ucred *cred, struct vnode *vp)
  580 {
  581 
  582         mac_vnode_assert_locked(vp, "mac_vnode_check_readlink");
  583         if (mac_vnode_check_readlink_enabled())
  584                 return (mac_vnode_check_readlink_impl(cred, vp));
  585         return (0);
  586 }
  587 #define mac_vnode_check_rename_from_enabled() __predict_false(mac_vnode_check_rename_from_fp_flag)
  588 #ifdef MAC
  589 extern bool mac_vnode_check_rename_from_fp_flag;
  590 #endif
  591 int     mac_vnode_check_rename_from(struct ucred *cred, struct vnode *dvp,
  592             struct vnode *vp, struct componentname *cnp);
  593 int     mac_vnode_check_rename_to(struct ucred *cred, struct vnode *dvp,
  594             struct vnode *vp, int samedir, struct componentname *cnp);
  595 int     mac_vnode_check_revoke(struct ucred *cred, struct vnode *vp);
  596 int     mac_vnode_check_setacl(struct ucred *cred, struct vnode *vp,
  597             acl_type_t type, struct acl *acl);
  598 int     mac_vnode_check_setextattr(struct ucred *cred, struct vnode *vp,
  599             int attrnamespace, const char *name);
  600 int     mac_vnode_check_setflags(struct ucred *cred, struct vnode *vp,
  601             u_long flags);
  602 int     mac_vnode_check_setmode(struct ucred *cred, struct vnode *vp,
  603             mode_t mode);
  604 int     mac_vnode_check_setowner(struct ucred *cred, struct vnode *vp,
  605             uid_t uid, gid_t gid);
  606 int     mac_vnode_check_setutimes(struct ucred *cred, struct vnode *vp,
  607             struct timespec atime, struct timespec mtime);
  608 
  609 int     mac_vnode_check_stat_impl(struct ucred *active_cred,
  610             struct ucred *file_cred, struct vnode *vp);
  611 #ifdef MAC
  612 extern bool mac_vnode_check_stat_fp_flag;
  613 #else
  614 #define mac_vnode_check_stat_fp_flag 0
  615 #endif
  616 #define mac_vnode_check_stat_enabled()  __predict_false(mac_vnode_check_stat_fp_flag)
  617 static inline int
  618 mac_vnode_check_stat(struct ucred *active_cred, struct ucred *file_cred,
  619     struct vnode *vp)
  620 {
  621 
  622         mac_vnode_assert_locked(vp, "mac_vnode_check_stat");
  623         if (mac_vnode_check_stat_enabled())
  624                 return (mac_vnode_check_stat_impl(active_cred, file_cred, vp));
  625         return (0);
  626 }
  627 
  628 int     mac_vnode_check_read_impl(struct ucred *active_cred,
  629             struct ucred *file_cred, struct vnode *vp);
  630 #ifdef MAC
  631 extern bool mac_vnode_check_read_fp_flag;
  632 #else
  633 #define mac_vnode_check_read_fp_flag 0
  634 #endif
  635 #define mac_vnode_check_read_enabled() __predict_false(mac_vnode_check_read_fp_flag)
  636 static inline int
  637 mac_vnode_check_read(struct ucred *active_cred, struct ucred *file_cred,
  638     struct vnode *vp)
  639 {
  640 
  641         mac_vnode_assert_locked(vp, "mac_vnode_check_read");
  642         if (mac_vnode_check_read_enabled())
  643                 return (mac_vnode_check_read_impl(active_cred, file_cred, vp));
  644         return (0);
  645 }
  646 
  647 int     mac_vnode_check_write_impl(struct ucred *active_cred,
  648             struct ucred *file_cred, struct vnode *vp);
  649 #ifdef MAC
  650 extern bool mac_vnode_check_write_fp_flag;
  651 #else
  652 #define mac_vnode_check_write_fp_flag 0
  653 #endif
  654 #define mac_vnode_check_write_enabled() __predict_false(mac_vnode_check_write_fp_flag)
  655 static inline int
  656 mac_vnode_check_write(struct ucred *active_cred, struct ucred *file_cred,
  657     struct vnode *vp)
  658 {
  659 
  660         mac_vnode_assert_locked(vp, "mac_vnode_check_write");
  661         if (mac_vnode_check_write_enabled())
  662                 return (mac_vnode_check_write_impl(active_cred, file_cred, vp));
  663         return (0);
  664 }
  665 
  666 int     mac_vnode_check_unlink(struct ucred *cred, struct vnode *dvp,
  667             struct vnode *vp, struct componentname *cnp);
  668 void    mac_vnode_copy_label(struct label *, struct label *);
  669 void    mac_vnode_init(struct vnode *);
  670 int     mac_vnode_create_extattr(struct ucred *cred, struct mount *mp,
  671             struct vnode *dvp, struct vnode *vp, struct componentname *cnp);
  672 void    mac_vnode_destroy(struct vnode *);
  673 void    mac_vnode_execve_transition(struct ucred *oldcred,
  674             struct ucred *newcred, struct vnode *vp,
  675             struct label *interpvplabel, struct image_params *imgp);
  676 int     mac_vnode_execve_will_transition(struct ucred *cred,
  677             struct vnode *vp, struct label *interpvplabel,
  678             struct image_params *imgp);
  679 void    mac_vnode_relabel(struct ucred *cred, struct vnode *vp,
  680             struct label *newlabel);
  681 
  682 /*
  683  * Calls to help various file systems implement labeling functionality using
  684  * their existing EA implementation.
  685  */
  686 int     vop_stdsetlabel_ea(struct vop_setlabel_args *ap);
  687 
  688 #endif /* !_SECURITY_MAC_MAC_FRAMEWORK_H_ */

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