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

     /*-
      * Copyright (c) 1999-2002, 2009 Robert N. M. Watson
      * Copyright (c) 2001 Ilmar S. Habibulin
      * Copyright (c) 2001-2004 Networks Associates Technology, Inc.
      * Copyright (c) 2006 SPARTA, Inc.
      *
      * This software was developed by Robert Watson and Ilmar Habibulin for the
      * TrustedBSD Project.
      *
     * This software was developed for the FreeBSD Project in part by Network
     * Associates Laboratories, the Security Research Division of Network
     * Associates, Inc. under DARPA/SPAWAR contract N66001-01-C-8035 ("CBOSS"),
     * as part of the DARPA CHATS research program.
     *
     * This software was enhanced by SPARTA ISSO under SPAWAR contract
     * N66001-04-C-6019 ("SEFOS").
     *
     * This software was developed at the University of Cambridge Computer
     * Laboratory with support from a grant from Google, Inc. 
     *
     * Redistribution and use in source and binary forms, with or without
     * modification, are permitted provided that the following conditions
     * are met:
     * 1. Redistributions of source code must retain the above copyright
     *    notice, this list of conditions and the following disclaimer.
     * 2. Redistributions in binary form must reproduce the above copyright
     *    notice, this list of conditions and the following disclaimer in the
     *    documentation and/or other materials provided with the distribution.
     *
     * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
     * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
     * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     * SUCH DAMAGE.
     */
    
    #include <sys/cdefs.h>
    __FBSDID("$FreeBSD: releng/11.0/sys/security/mac/mac_audit.c 258541 2013-11-25 07:38:45Z attilio $");
    
    #include <sys/param.h>
    #include <sys/kernel.h>
    #include <sys/module.h>
    #include <sys/queue.h>
    #include <sys/sdt.h>
    #include <sys/vnode.h>
    
    #include <security/audit/audit.h>
    
    #include <security/mac/mac_framework.h>
    #include <security/mac/mac_internal.h>
    #include <security/mac/mac_policy.h>
    
    MAC_CHECK_PROBE_DEFINE2(cred_check_setaudit, "struct ucred *",
        "struct auditinfo *");
    
    int
    mac_cred_check_setaudit(struct ucred *cred, struct auditinfo *ai)
    {
            int error;
    
            MAC_POLICY_CHECK_NOSLEEP(cred_check_setaudit, cred, ai);
            MAC_CHECK_PROBE2(cred_check_setaudit, error, cred, ai);
    
            return (error);
    }
    
    MAC_CHECK_PROBE_DEFINE2(cred_check_setaudit_addr, "struct ucred *",
        "struct auditinfo_addr *");
    
    int
    mac_cred_check_setaudit_addr(struct ucred *cred, struct auditinfo_addr *aia)
    {
            int error;
    
            MAC_POLICY_CHECK_NOSLEEP(cred_check_setaudit_addr, cred, aia);
            MAC_CHECK_PROBE2(cred_check_setaudit_addr, error, cred, aia);
    
            return (error);
    }
    
    MAC_CHECK_PROBE_DEFINE2(cred_check_setauid, "struct ucred *", "uid_t");
    
    int
    mac_cred_check_setauid(struct ucred *cred, uid_t auid)
    {
            int error;
    
            MAC_POLICY_CHECK_NOSLEEP(cred_check_setauid, cred, auid);
            MAC_CHECK_PROBE2(cred_check_setauid, error, cred, auid);
    
            return (error);
    }
    
   MAC_CHECK_PROBE_DEFINE3(system_check_audit, "struct ucred *", "void *",
       "int");
   
   int
   mac_system_check_audit(struct ucred *cred, void *record, int length)
   {
           int error;
   
           MAC_POLICY_CHECK_NOSLEEP(system_check_audit, cred, record, length);
           MAC_CHECK_PROBE3(system_check_audit, error, cred, record, length);
   
           return (error);
   }
   
   MAC_CHECK_PROBE_DEFINE2(system_check_auditctl, "struct ucred *",
       "struct vnode *");
   
   int
   mac_system_check_auditctl(struct ucred *cred, struct vnode *vp)
   {
           int error;
           struct label *vl;
   
           ASSERT_VOP_LOCKED(vp, "mac_system_check_auditctl");
   
           vl = (vp != NULL) ? vp->v_label : NULL;
           MAC_POLICY_CHECK(system_check_auditctl, cred, vp, vl);
           MAC_CHECK_PROBE2(system_check_auditctl, error, cred, vp);
   
           return (error);
   }
   
   MAC_CHECK_PROBE_DEFINE2(system_check_auditon, "struct ucred *", "int");
   
   int
   mac_system_check_auditon(struct ucred *cred, int cmd)
   {
           int error;
   
           MAC_POLICY_CHECK_NOSLEEP(system_check_auditon, cred, cmd);
           MAC_CHECK_PROBE2(system_check_auditon, error, cred, cmd);
   
           return (error);
   }

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