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mac_audit.c
(4.31 KB)
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mac_cred.c
(8.74 KB)
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mac_framework.c
(19.87 KB)
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mac_framework.h
(25.25 KB)
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mac_inet.c
(10.94 KB)
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mac_inet6.c
(4.3 KB)
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mac_internal.h
(18.48 KB)
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mac_label.c
(4.01 KB)
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mac_net.c
(11.7 KB)
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mac_pipe.c
(6.22 KB)
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mac_policy.h
(46.31 KB)
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mac_posix_sem.c
(6.04 KB)
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mac_posix_shm.c
(6.95 KB)
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mac_priv.c
(3.17 KB)
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mac_process.c
(11.23 KB)
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mac_socket.c
(15.39 KB)
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mac_syscalls.c
(14.92 KB)
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mac_system.c
(6.33 KB)
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mac_sysv_msg.c
(6.86 KB)
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mac_sysv_sem.c
(4.44 KB)
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mac_sysv_shm.c
(4.9 KB)
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mac_vfs.c
(25.89 KB)
Editing: mac_priv.c
/*- * Copyright (c) 2006 nCircle Network Security, Inc. * Copyright (c) 2009 Robert N. M. Watson * All rights reserved. * * This software was developed by Robert N. M. Watson for the TrustedBSD * Project under contract to nCircle Network Security, Inc. * * 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, NCIRCLE NETWORK SECURITY, * INC., 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. */ /* * MAC checks for system privileges. */ #include "sys/cdefs.h" __FBSDID("$FreeBSD$"); #include "opt_mac.h" #include <sys/param.h> #include <sys/kernel.h> #include <sys/priv.h> #include <sys/sdt.h> #include <sys/module.h> #include <security/mac/mac_framework.h> #include <security/mac/mac_internal.h> #include <security/mac/mac_policy.h> /* * The MAC Framework interacts with kernel privilege checks in two ways: it * may restrict the granting of privilege to a subject, and it may grant * additional privileges to the subject. Policies may implement none, one, * or both of these entry points. Restriction of privilege by any policy * always overrides granting of privilege by any policy or other privilege * mechanism. See kern_priv.c:priv_check_cred() for details of the * composition. */ MAC_CHECK_PROBE_DEFINE2(priv_check, "struct ucred *", "int"); /* * Restrict access to a privilege for a credential. Return failure if any * policy denies access. */ int mac_priv_check_impl(struct ucred *cred, int priv) { int error; MAC_POLICY_CHECK_NOSLEEP(priv_check, cred, priv); MAC_CHECK_PROBE2(priv_check, error, cred, priv); return (error); } MAC_GRANT_PROBE_DEFINE2(priv_grant, "struct ucred *", "int"); /* * Grant access to a privilege for a credential. Return success if any * policy grants access. */ int mac_priv_grant_impl(struct ucred *cred, int priv) { int error; MAC_POLICY_GRANT_NOSLEEP(priv_grant, cred, priv); MAC_GRANT_PROBE2(priv_grant, error, cred, priv); return (error); }
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