mac_syscalls.c

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    1 /*-
    2  * Copyright (c) 1999-2002, 2006 Robert N. M. Watson
    3  * Copyright (c) 2001 Ilmar S. Habibulin
    4  * Copyright (c) 2001-2005 Networks Associates Technology, Inc.
    5  * Copyright (c) 2005-2006 SPARTA, Inc.
    6  * All rights reserved.
    7  *
    8  * This software was developed by Robert Watson and Ilmar Habibulin for the
    9  * TrustedBSD Project.
   10  *
   11  * This software was developed for the FreeBSD Project in part by Network
   12  * Associates Laboratories, the Security Research Division of Network
   13  * Associates, Inc. under DARPA/SPAWAR contract N66001-01-C-8035 ("CBOSS"),
   14  * as part of the DARPA CHATS research program.
   15  *
   16  * This software was enhanced by SPARTA ISSO under SPAWAR contract 
   17  * N66001-04-C-6019 ("SEFOS").
   18  *
   19  * Redistribution and use in source and binary forms, with or without
   20  * modification, are permitted provided that the following conditions
   21  * are met:
   22  * 1. Redistributions of source code must retain the above copyright
   23  *    notice, this list of conditions and the following disclaimer.
   24  * 2. Redistributions in binary form must reproduce the above copyright
   25  *    notice, this list of conditions and the following disclaimer in the
   26  *    documentation and/or other materials provided with the distribution.
   27  *
   28  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   29  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   30  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   31  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   32  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   33  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   34  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   35  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   36  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   37  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   38  * SUCH DAMAGE.
   39  */
   40 
   41 #include <sys/cdefs.h>
   42 __FBSDID("$FreeBSD$");
   43 
   44 #include "opt_mac.h"
   45 
   46 #include <sys/param.h>
   47 #include <sys/kernel.h>
   48 #include <sys/lock.h>
   49 #include <sys/malloc.h>
   50 #include <sys/mutex.h>
   51 #include <sys/mac.h>
   52 #include <sys/proc.h>
   53 #include <sys/systm.h>
   54 #include <sys/sysproto.h>
   55 #include <sys/sysent.h>
   56 #include <sys/vnode.h>
   57 #include <sys/mount.h>
   58 #include <sys/file.h>
   59 #include <sys/namei.h>
   60 #include <sys/socket.h>
   61 #include <sys/pipe.h>
   62 #include <sys/socketvar.h>
   63 
   64 #include <security/mac/mac_framework.h>
   65 #include <security/mac/mac_internal.h>
   66 #include <security/mac/mac_policy.h>
   67 
   68 #ifdef MAC
   69 
   70 int
   71 __mac_get_pid(struct thread *td, struct __mac_get_pid_args *uap)
   72 {
   73         char *elements, *buffer;
   74         struct mac mac;
   75         struct proc *tproc;
   76         struct ucred *tcred;
   77         int error;
   78 
   79         error = copyin(uap->mac_p, &mac, sizeof(mac));
   80         if (error)
   81                 return (error);
   82 
   83         error = mac_check_structmac_consistent(&mac);
   84         if (error)
   85                 return (error);
   86 
   87         tproc = pfind(uap->pid);
   88         if (tproc == NULL)
   89                 return (ESRCH);
   90 
   91         tcred = NULL;                           /* Satisfy gcc. */
   92         error = p_cansee(td, tproc);
   93         if (error == 0)
   94                 tcred = crhold(tproc->p_ucred);
   95         PROC_UNLOCK(tproc);
   96         if (error)
   97                 return (error);
   98 
   99         elements = malloc(mac.m_buflen, M_MACTEMP, M_WAITOK);
  100         error = copyinstr(mac.m_string, elements, mac.m_buflen, NULL);
  101         if (error) {
  102                 free(elements, M_MACTEMP);
  103                 crfree(tcred);
  104                 return (error);
  105         }
  106 
  107         buffer = malloc(mac.m_buflen, M_MACTEMP, M_WAITOK | M_ZERO);
  108         error = mac_externalize_cred_label(tcred->cr_label, elements,
  109             buffer, mac.m_buflen);
  110         if (error == 0)
  111                 error = copyout(buffer, mac.m_string, strlen(buffer)+1);
  112 
  113         free(buffer, M_MACTEMP);
  114         free(elements, M_MACTEMP);
  115         crfree(tcred);
  116         return (error);
  117 }
  118 
  119 int
  120 __mac_get_proc(struct thread *td, struct __mac_get_proc_args *uap)
  121 {
  122         char *elements, *buffer;
  123         struct mac mac;
  124         int error;
  125 
  126         error = copyin(uap->mac_p, &mac, sizeof(mac));
  127         if (error)
  128                 return (error);
  129 
  130         error = mac_check_structmac_consistent(&mac);
  131         if (error)
  132                 return (error);
  133 
  134         elements = malloc(mac.m_buflen, M_MACTEMP, M_WAITOK);
  135         error = copyinstr(mac.m_string, elements, mac.m_buflen, NULL);
  136         if (error) {
  137                 free(elements, M_MACTEMP);
  138                 return (error);
  139         }
  140 
  141         buffer = malloc(mac.m_buflen, M_MACTEMP, M_WAITOK | M_ZERO);
  142         error = mac_externalize_cred_label(td->td_ucred->cr_label,
  143             elements, buffer, mac.m_buflen);
  144         if (error == 0)
  145                 error = copyout(buffer, mac.m_string, strlen(buffer)+1);
  146 
  147         free(buffer, M_MACTEMP);
  148         free(elements, M_MACTEMP);
  149         return (error);
  150 }
  151 
  152 int
  153 __mac_set_proc(struct thread *td, struct __mac_set_proc_args *uap)
  154 {
  155         struct ucred *newcred, *oldcred;
  156         struct label *intlabel;
  157         struct proc *p;
  158         struct mac mac;
  159         char *buffer;
  160         int error;
  161 
  162         error = copyin(uap->mac_p, &mac, sizeof(mac));
  163         if (error)
  164                 return (error);
  165 
  166         error = mac_check_structmac_consistent(&mac);
  167         if (error)
  168                 return (error);
  169 
  170         buffer = malloc(mac.m_buflen, M_MACTEMP, M_WAITOK);
  171         error = copyinstr(mac.m_string, buffer, mac.m_buflen, NULL);
  172         if (error) {
  173                 free(buffer, M_MACTEMP);
  174                 return (error);
  175         }
  176 
  177         intlabel = mac_cred_label_alloc();
  178         error = mac_internalize_cred_label(intlabel, buffer);
  179         free(buffer, M_MACTEMP);
  180         if (error)
  181                 goto out;
  182 
  183         newcred = crget();
  184 
  185         p = td->td_proc;
  186         PROC_LOCK(p);
  187         oldcred = p->p_ucred;
  188 
  189         error = mac_check_cred_relabel(oldcred, intlabel);
  190         if (error) {
  191                 PROC_UNLOCK(p);
  192                 crfree(newcred);
  193                 goto out;
  194         }
  195 
  196         setsugid(p);
  197         crcopy(newcred, oldcred);
  198         mac_relabel_cred(newcred, intlabel);
  199         p->p_ucred = newcred;
  200 
  201         /*
  202          * Grab additional reference for use while revoking mmaps, prior to
  203          * releasing the proc lock and sharing the cred.
  204          */
  205         crhold(newcred);
  206         PROC_UNLOCK(p);
  207 
  208         mac_cred_mmapped_drop_perms(td, newcred);
  209 
  210         crfree(newcred);        /* Free revocation reference. */
  211         crfree(oldcred);
  212 
  213 out:
  214         mac_cred_label_free(intlabel);
  215         return (error);
  216 }
  217 
  218 int
  219 __mac_get_fd(struct thread *td, struct __mac_get_fd_args *uap)
  220 {
  221         char *elements, *buffer;
  222         struct label *intlabel;
  223         struct file *fp;
  224         struct mac mac;
  225         struct vnode *vp;
  226         struct pipe *pipe;
  227         struct socket *so;
  228         short label_type;
  229         int vfslocked, error;
  230 
  231         error = copyin(uap->mac_p, &mac, sizeof(mac));
  232         if (error)
  233                 return (error);
  234 
  235         error = mac_check_structmac_consistent(&mac);
  236         if (error)
  237                 return (error);
  238 
  239         elements = malloc(mac.m_buflen, M_MACTEMP, M_WAITOK);
  240         error = copyinstr(mac.m_string, elements, mac.m_buflen, NULL);
  241         if (error) {
  242                 free(elements, M_MACTEMP);
  243                 return (error);
  244         }
  245 
  246         buffer = malloc(mac.m_buflen, M_MACTEMP, M_WAITOK | M_ZERO);
  247         error = fget(td, uap->fd, &fp);
  248         if (error)
  249                 goto out;
  250 
  251         label_type = fp->f_type;
  252         switch (fp->f_type) {
  253         case DTYPE_FIFO:
  254         case DTYPE_VNODE:
  255                 vp = fp->f_vnode;
  256                 intlabel = mac_vnode_label_alloc();
  257                 vfslocked = VFS_LOCK_GIANT(vp->v_mount);
  258                 vn_lock(vp, LK_EXCLUSIVE | LK_RETRY, td);
  259                 mac_copy_vnode_label(vp->v_label, intlabel);
  260                 VOP_UNLOCK(vp, 0, td);
  261                 VFS_UNLOCK_GIANT(vfslocked);
  262                 error = mac_externalize_vnode_label(intlabel, elements,
  263                     buffer, mac.m_buflen);
  264                 mac_vnode_label_free(intlabel);
  265                 break;
  266 
  267         case DTYPE_PIPE:
  268                 pipe = fp->f_data;
  269                 intlabel = mac_pipe_label_alloc();
  270                 PIPE_LOCK(pipe);
  271                 mac_copy_pipe_label(pipe->pipe_pair->pp_label, intlabel);
  272                 PIPE_UNLOCK(pipe);
  273                 error = mac_externalize_pipe_label(intlabel, elements,
  274                     buffer, mac.m_buflen);
  275                 mac_pipe_label_free(intlabel);
  276                 break;
  277 
  278         case DTYPE_SOCKET:
  279                 so = fp->f_data;
  280                 intlabel = mac_socket_label_alloc(M_WAITOK);
  281                 SOCK_LOCK(so);
  282                 mac_copy_socket_label(so->so_label, intlabel);
  283                 SOCK_UNLOCK(so);
  284                 error = mac_externalize_socket_label(intlabel, elements,
  285                     buffer, mac.m_buflen);
  286                 mac_socket_label_free(intlabel);
  287                 break;
  288 
  289         default:
  290                 error = EINVAL;
  291         }
  292         fdrop(fp, td);
  293         if (error == 0)
  294                 error = copyout(buffer, mac.m_string, strlen(buffer)+1);
  295 
  296 out:
  297         free(buffer, M_MACTEMP);
  298         free(elements, M_MACTEMP);
  299         return (error);
  300 }
  301 
  302 int
  303 __mac_get_file(struct thread *td, struct __mac_get_file_args *uap)
  304 {
  305         char *elements, *buffer;
  306         struct nameidata nd;
  307         struct label *intlabel;
  308         struct mac mac;
  309         int vfslocked, error;
  310 
  311         error = copyin(uap->mac_p, &mac, sizeof(mac));
  312         if (error)
  313                 return (error);
  314 
  315         error = mac_check_structmac_consistent(&mac);
  316         if (error)
  317                 return (error);
  318 
  319         elements = malloc(mac.m_buflen, M_MACTEMP, M_WAITOK);
  320         error = copyinstr(mac.m_string, elements, mac.m_buflen, NULL);
  321         if (error) {
  322                 free(elements, M_MACTEMP);
  323                 return (error);
  324         }
  325 
  326         buffer = malloc(mac.m_buflen, M_MACTEMP, M_WAITOK | M_ZERO);
  327         NDINIT(&nd, LOOKUP, MPSAFE | LOCKLEAF | FOLLOW, UIO_USERSPACE,
  328             uap->path_p, td);
  329         error = namei(&nd);
  330         if (error)
  331                 goto out;
  332 
  333         intlabel = mac_vnode_label_alloc();
  334         vfslocked = NDHASGIANT(&nd);
  335         mac_copy_vnode_label(nd.ni_vp->v_label, intlabel);
  336         error = mac_externalize_vnode_label(intlabel, elements, buffer,
  337             mac.m_buflen);
  338 
  339         NDFREE(&nd, 0);
  340         VFS_UNLOCK_GIANT(vfslocked);
  341         mac_vnode_label_free(intlabel);
  342         if (error == 0)
  343                 error = copyout(buffer, mac.m_string, strlen(buffer)+1);
  344 
  345 out:
  346         free(buffer, M_MACTEMP);
  347         free(elements, M_MACTEMP);
  348 
  349         return (error);
  350 }
  351 
  352 int
  353 __mac_get_link(struct thread *td, struct __mac_get_link_args *uap)
  354 {
  355         char *elements, *buffer;
  356         struct nameidata nd;
  357         struct label *intlabel;
  358         struct mac mac;
  359         int vfslocked, error;
  360 
  361         error = copyin(uap->mac_p, &mac, sizeof(mac));
  362         if (error)
  363                 return (error);
  364 
  365         error = mac_check_structmac_consistent(&mac);
  366         if (error)
  367                 return (error);
  368 
  369         elements = malloc(mac.m_buflen, M_MACTEMP, M_WAITOK);
  370         error = copyinstr(mac.m_string, elements, mac.m_buflen, NULL);
  371         if (error) {
  372                 free(elements, M_MACTEMP);
  373                 return (error);
  374         }
  375 
  376         buffer = malloc(mac.m_buflen, M_MACTEMP, M_WAITOK | M_ZERO);
  377         NDINIT(&nd, LOOKUP, MPSAFE | LOCKLEAF | NOFOLLOW, UIO_USERSPACE,
  378             uap->path_p, td);
  379         error = namei(&nd);
  380         if (error)
  381                 goto out;
  382 
  383         intlabel = mac_vnode_label_alloc();
  384         vfslocked = NDHASGIANT(&nd);
  385         mac_copy_vnode_label(nd.ni_vp->v_label, intlabel);
  386         error = mac_externalize_vnode_label(intlabel, elements, buffer,
  387             mac.m_buflen);
  388         NDFREE(&nd, 0);
  389         VFS_UNLOCK_GIANT(vfslocked);
  390         mac_vnode_label_free(intlabel);
  391 
  392         if (error == 0)
  393                 error = copyout(buffer, mac.m_string, strlen(buffer)+1);
  394 
  395 out:
  396         free(buffer, M_MACTEMP);
  397         free(elements, M_MACTEMP);
  398 
  399         return (error);
  400 }
  401 
  402 int
  403 __mac_set_fd(struct thread *td, struct __mac_set_fd_args *uap)
  404 {
  405         struct label *intlabel;
  406         struct pipe *pipe;
  407         struct socket *so;
  408         struct file *fp;
  409         struct mount *mp;
  410         struct vnode *vp;
  411         struct mac mac;
  412         char *buffer;
  413         int error, vfslocked;
  414 
  415         error = copyin(uap->mac_p, &mac, sizeof(mac));
  416         if (error)
  417                 return (error);
  418 
  419         error = mac_check_structmac_consistent(&mac);
  420         if (error)
  421                 return (error);
  422 
  423         buffer = malloc(mac.m_buflen, M_MACTEMP, M_WAITOK);
  424         error = copyinstr(mac.m_string, buffer, mac.m_buflen, NULL);
  425         if (error) {
  426                 free(buffer, M_MACTEMP);
  427                 return (error);
  428         }
  429 
  430         error = fget(td, uap->fd, &fp);
  431         if (error)
  432                 goto out;
  433 
  434         switch (fp->f_type) {
  435         case DTYPE_FIFO:
  436         case DTYPE_VNODE:
  437                 intlabel = mac_vnode_label_alloc();
  438                 error = mac_internalize_vnode_label(intlabel, buffer);
  439                 if (error) {
  440                         mac_vnode_label_free(intlabel);
  441                         break;
  442                 }
  443                 vp = fp->f_vnode;
  444                 vfslocked = VFS_LOCK_GIANT(vp->v_mount);
  445                 error = vn_start_write(vp, &mp, V_WAIT | PCATCH);
  446                 if (error != 0) {
  447                         VFS_UNLOCK_GIANT(vfslocked);
  448                         mac_vnode_label_free(intlabel);
  449                         break;
  450                 }
  451                 vn_lock(vp, LK_EXCLUSIVE | LK_RETRY, td);
  452                 error = vn_setlabel(vp, intlabel, td->td_ucred);
  453                 VOP_UNLOCK(vp, 0, td);
  454                 vn_finished_write(mp);
  455                 VFS_UNLOCK_GIANT(vfslocked);
  456                 mac_vnode_label_free(intlabel);
  457                 break;
  458 
  459         case DTYPE_PIPE:
  460                 intlabel = mac_pipe_label_alloc();
  461                 error = mac_internalize_pipe_label(intlabel, buffer);
  462                 if (error == 0) {
  463                         pipe = fp->f_data;
  464                         PIPE_LOCK(pipe);
  465                         error = mac_pipe_label_set(td->td_ucred,
  466                             pipe->pipe_pair, intlabel);
  467                         PIPE_UNLOCK(pipe);
  468                 }
  469                 mac_pipe_label_free(intlabel);
  470                 break;
  471 
  472         case DTYPE_SOCKET:
  473                 intlabel = mac_socket_label_alloc(M_WAITOK);
  474                 error = mac_internalize_socket_label(intlabel, buffer);
  475                 if (error == 0) {
  476                         so = fp->f_data;
  477                         error = mac_socket_label_set(td->td_ucred, so,
  478                             intlabel);
  479                 }
  480                 mac_socket_label_free(intlabel);
  481                 break;
  482 
  483         default:
  484                 error = EINVAL;
  485         }
  486         fdrop(fp, td);
  487 out:
  488         free(buffer, M_MACTEMP);
  489         return (error);
  490 }
  491 
  492 int
  493 __mac_set_file(struct thread *td, struct __mac_set_file_args *uap)
  494 {
  495         struct label *intlabel;
  496         struct nameidata nd;
  497         struct mount *mp;
  498         struct mac mac;
  499         char *buffer;
  500         int vfslocked, error;
  501 
  502         error = copyin(uap->mac_p, &mac, sizeof(mac));
  503         if (error)
  504                 return (error);
  505 
  506         error = mac_check_structmac_consistent(&mac);
  507         if (error)
  508                 return (error);
  509 
  510         buffer = malloc(mac.m_buflen, M_MACTEMP, M_WAITOK);
  511         error = copyinstr(mac.m_string, buffer, mac.m_buflen, NULL);
  512         if (error) {
  513                 free(buffer, M_MACTEMP);
  514                 return (error);
  515         }
  516 
  517         intlabel = mac_vnode_label_alloc();
  518         error = mac_internalize_vnode_label(intlabel, buffer);
  519         free(buffer, M_MACTEMP);
  520         if (error)
  521                 goto out;
  522 
  523         NDINIT(&nd, LOOKUP, MPSAFE | LOCKLEAF | FOLLOW, UIO_USERSPACE,
  524             uap->path_p, td);
  525         error = namei(&nd);
  526         vfslocked = NDHASGIANT(&nd);
  527         if (error == 0) {
  528                 error = vn_start_write(nd.ni_vp, &mp, V_WAIT | PCATCH);
  529                 if (error == 0) {
  530                         error = vn_setlabel(nd.ni_vp, intlabel,
  531                             td->td_ucred);
  532                         vn_finished_write(mp);
  533                 }
  534         }
  535 
  536         NDFREE(&nd, 0);
  537         VFS_UNLOCK_GIANT(vfslocked);
  538 out:
  539         mac_vnode_label_free(intlabel);
  540         return (error);
  541 }
  542 
  543 int
  544 __mac_set_link(struct thread *td, struct __mac_set_link_args *uap)
  545 {
  546         struct label *intlabel;
  547         struct nameidata nd;
  548         struct mount *mp;
  549         struct mac mac;
  550         char *buffer;
  551         int vfslocked, error;
  552 
  553         error = copyin(uap->mac_p, &mac, sizeof(mac));
  554         if (error)
  555                 return (error);
  556 
  557         error = mac_check_structmac_consistent(&mac);
  558         if (error)
  559                 return (error);
  560 
  561         buffer = malloc(mac.m_buflen, M_MACTEMP, M_WAITOK);
  562         error = copyinstr(mac.m_string, buffer, mac.m_buflen, NULL);
  563         if (error) {
  564                 free(buffer, M_MACTEMP);
  565                 return (error);
  566         }
  567 
  568         intlabel = mac_vnode_label_alloc();
  569         error = mac_internalize_vnode_label(intlabel, buffer);
  570         free(buffer, M_MACTEMP);
  571         if (error)
  572                 goto out;
  573 
  574         NDINIT(&nd, LOOKUP, MPSAFE | LOCKLEAF | NOFOLLOW, UIO_USERSPACE,
  575             uap->path_p, td);
  576         error = namei(&nd);
  577         vfslocked = NDHASGIANT(&nd);
  578         if (error == 0) {
  579                 error = vn_start_write(nd.ni_vp, &mp, V_WAIT | PCATCH);
  580                 if (error == 0) {
  581                         error = vn_setlabel(nd.ni_vp, intlabel,
  582                             td->td_ucred);
  583                         vn_finished_write(mp);
  584                 }
  585         }
  586 
  587         NDFREE(&nd, 0);
  588         VFS_UNLOCK_GIANT(vfslocked);
  589 out:
  590         mac_vnode_label_free(intlabel);
  591         return (error);
  592 }
  593 
  594 int
  595 mac_syscall(struct thread *td, struct mac_syscall_args *uap)
  596 {
  597         struct mac_policy_conf *mpc;
  598         char target[MAC_MAX_POLICY_NAME];
  599         int entrycount, error;
  600 
  601         error = copyinstr(uap->policy, target, sizeof(target), NULL);
  602         if (error)
  603                 return (error);
  604 
  605         error = ENOSYS;
  606         LIST_FOREACH(mpc, &mac_static_policy_list, mpc_list) {
  607                 if (strcmp(mpc->mpc_name, target) == 0 &&
  608                     mpc->mpc_ops->mpo_syscall != NULL) {
  609                         error = mpc->mpc_ops->mpo_syscall(td,
  610                             uap->call, uap->arg);
  611                         goto out;
  612                 }
  613         }
  614 
  615         if ((entrycount = mac_policy_list_conditional_busy()) != 0) {
  616                 LIST_FOREACH(mpc, &mac_policy_list, mpc_list) {
  617                         if (strcmp(mpc->mpc_name, target) == 0 &&
  618                             mpc->mpc_ops->mpo_syscall != NULL) {
  619                                 error = mpc->mpc_ops->mpo_syscall(td,
  620                                     uap->call, uap->arg);
  621                                 break;
  622                         }
  623                 }
  624                 mac_policy_list_unbusy();
  625         }
  626 out:
  627         return (error);
  628 }
  629 
  630 #else /* !MAC */
  631 
  632 int
  633 __mac_get_pid(struct thread *td, struct __mac_get_pid_args *uap)
  634 {
  635 
  636         return (ENOSYS);
  637 }
  638 
  639 int
  640 __mac_get_proc(struct thread *td, struct __mac_get_proc_args *uap)
  641 {
  642 
  643         return (ENOSYS);
  644 }
  645 
  646 int
  647 __mac_set_proc(struct thread *td, struct __mac_set_proc_args *uap)
  648 {
  649 
  650         return (ENOSYS);
  651 }
  652 
  653 int
  654 __mac_get_fd(struct thread *td, struct __mac_get_fd_args *uap)
  655 {
  656 
  657         return (ENOSYS);
  658 }
  659 
  660 int
  661 __mac_get_file(struct thread *td, struct __mac_get_file_args *uap)
  662 {
  663 
  664         return (ENOSYS);
  665 }
  666 
  667 int
  668 __mac_get_link(struct thread *td, struct __mac_get_link_args *uap)
  669 {
  670 
  671         return (ENOSYS);
  672 }
  673 
  674 int
  675 __mac_set_fd(struct thread *td, struct __mac_set_fd_args *uap)
  676 {
  677 
  678         return (ENOSYS);
  679 }
  680 
  681 int
  682 __mac_set_file(struct thread *td, struct __mac_set_file_args *uap)
  683 {
  684 
  685         return (ENOSYS);
  686 }
  687 
  688 int
  689 __mac_set_link(struct thread *td, struct __mac_set_link_args *uap)
  690 {
  691 
  692         return (ENOSYS);
  693 }
  694 
  695 int
  696 mac_syscall(struct thread *td, struct mac_syscall_args *uap)
  697 {
  698 
  699         return (ENOSYS);
  700 }
  701 
  702 #endif /* !MAC */
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FreeBSD/Linux Kernel Cross Reference sys/security/mac/mac_syscalls.c

FreeBSD/Linux Kernel Cross Reference
sys/security/mac/mac_syscalls.c
