296 lines
7.6 KiB
C
296 lines
7.6 KiB
C
/*-
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* Copyright (c) 1999-2002, 2007-2008 Robert N. M. Watson
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* Copyright (c) 2001-2005 Networks Associates Technology, Inc.
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* Copyright (c) 2005 Tom Rhodes
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* Copyright (c) 2006 SPARTA, Inc.
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* All rights reserved.
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*
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* This software was developed by Robert Watson for the TrustedBSD Project.
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* It was later enhanced by Tom Rhodes for the TrustedBSD Project.
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*
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* This software was developed for the FreeBSD Project in part by Network
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* Associates Laboratories, the Security Research Division of Network
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* Associates, Inc. under DARPA/SPAWAR contract N66001-01-C-8035 ("CBOSS"),
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* as part of the DARPA CHATS research program.
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*
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* This software was enhanced by SPARTA ISSO under SPAWAR contract
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* N66001-04-C-6019 ("SEFOS").
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#include <sys/param.h>
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#include <sys/acl.h>
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#include <sys/kernel.h>
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#include <sys/jail.h>
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#include <sys/lock.h>
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#include <sys/malloc.h>
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#include <sys/module.h>
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#include <sys/mount.h>
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#include <sys/mutex.h>
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#include <sys/priv.h>
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#include <sys/systm.h>
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#include <sys/vnode.h>
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#include <sys/sysctl.h>
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#include <sys/syslog.h>
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#include <sys/stat.h>
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#include <security/mac/mac_policy.h>
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#include <security/mac_bsdextended/mac_bsdextended.h>
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#include <security/mac_bsdextended/ugidfw_internal.h>
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int
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ugidfw_vnode_check_access(struct ucred *cred, struct vnode *vp,
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struct label *vplabel, accmode_t accmode)
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{
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return (ugidfw_check_vp(cred, vp, ugidfw_accmode2mbi(accmode)));
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}
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int
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ugidfw_vnode_check_chdir(struct ucred *cred, struct vnode *dvp,
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struct label *dvplabel)
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{
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return (ugidfw_check_vp(cred, dvp, MBI_EXEC));
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}
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int
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ugidfw_vnode_check_chroot(struct ucred *cred, struct vnode *dvp,
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struct label *dvplabel)
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{
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return (ugidfw_check_vp(cred, dvp, MBI_EXEC));
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}
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int
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ugidfw_check_create_vnode(struct ucred *cred, struct vnode *dvp,
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struct label *dvplabel, struct componentname *cnp, struct vattr *vap)
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{
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return (ugidfw_check_vp(cred, dvp, MBI_WRITE));
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}
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int
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ugidfw_vnode_check_deleteacl(struct ucred *cred, struct vnode *vp,
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struct label *vplabel, acl_type_t type)
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{
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return (ugidfw_check_vp(cred, vp, MBI_ADMIN));
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}
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int
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ugidfw_vnode_check_deleteextattr(struct ucred *cred, struct vnode *vp,
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struct label *vplabel, int attrnamespace, const char *name)
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{
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return (ugidfw_check_vp(cred, vp, MBI_WRITE));
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}
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int
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ugidfw_vnode_check_exec(struct ucred *cred, struct vnode *vp,
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struct label *vplabel, struct image_params *imgp,
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struct label *execlabel)
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{
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return (ugidfw_check_vp(cred, vp, MBI_READ|MBI_EXEC));
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}
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int
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ugidfw_vnode_check_getacl(struct ucred *cred, struct vnode *vp,
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struct label *vplabel, acl_type_t type)
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{
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return (ugidfw_check_vp(cred, vp, MBI_STAT));
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}
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int
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ugidfw_vnode_check_getextattr(struct ucred *cred, struct vnode *vp,
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struct label *vplabel, int attrnamespace, const char *name)
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{
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return (ugidfw_check_vp(cred, vp, MBI_READ));
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}
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int
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ugidfw_vnode_check_link(struct ucred *cred, struct vnode *dvp,
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struct label *dvplabel, struct vnode *vp, struct label *label,
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struct componentname *cnp)
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{
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int error;
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error = ugidfw_check_vp(cred, dvp, MBI_WRITE);
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if (error)
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return (error);
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error = ugidfw_check_vp(cred, vp, MBI_WRITE);
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if (error)
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return (error);
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return (0);
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}
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int
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ugidfw_vnode_check_listextattr(struct ucred *cred, struct vnode *vp,
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struct label *vplabel, int attrnamespace)
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{
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return (ugidfw_check_vp(cred, vp, MBI_READ));
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}
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int
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ugidfw_vnode_check_lookup(struct ucred *cred, struct vnode *dvp,
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struct label *dvplabel, struct componentname *cnp)
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{
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return (ugidfw_check_vp(cred, dvp, MBI_EXEC));
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}
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int
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ugidfw_vnode_check_open(struct ucred *cred, struct vnode *vp,
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struct label *vplabel, accmode_t accmode)
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{
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return (ugidfw_check_vp(cred, vp, ugidfw_accmode2mbi(accmode)));
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}
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int
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ugidfw_vnode_check_readdir(struct ucred *cred, struct vnode *dvp,
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struct label *dvplabel)
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{
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return (ugidfw_check_vp(cred, dvp, MBI_READ));
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}
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int
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ugidfw_vnode_check_readdlink(struct ucred *cred, struct vnode *vp,
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struct label *vplabel)
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{
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return (ugidfw_check_vp(cred, vp, MBI_READ));
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}
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int
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ugidfw_vnode_check_rename_from(struct ucred *cred, struct vnode *dvp,
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struct label *dvplabel, struct vnode *vp, struct label *vplabel,
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struct componentname *cnp)
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{
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int error;
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error = ugidfw_check_vp(cred, dvp, MBI_WRITE);
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if (error)
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return (error);
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return (ugidfw_check_vp(cred, vp, MBI_WRITE));
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}
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int
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ugidfw_vnode_check_rename_to(struct ucred *cred, struct vnode *dvp,
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struct label *dvplabel, struct vnode *vp, struct label *vplabel,
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int samedir, struct componentname *cnp)
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{
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int error;
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error = ugidfw_check_vp(cred, dvp, MBI_WRITE);
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if (error)
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return (error);
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if (vp != NULL)
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error = ugidfw_check_vp(cred, vp, MBI_WRITE);
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return (error);
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}
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int
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ugidfw_vnode_check_revoke(struct ucred *cred, struct vnode *vp,
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struct label *vplabel)
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{
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return (ugidfw_check_vp(cred, vp, MBI_ADMIN));
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}
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int
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ugidfw_check_setacl_vnode(struct ucred *cred, struct vnode *vp,
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struct label *vplabel, acl_type_t type, struct acl *acl)
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{
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return (ugidfw_check_vp(cred, vp, MBI_ADMIN));
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}
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int
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ugidfw_vnode_check_setextattr(struct ucred *cred, struct vnode *vp,
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struct label *vplabel, int attrnamespace, const char *name)
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{
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return (ugidfw_check_vp(cred, vp, MBI_WRITE));
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}
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int
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ugidfw_vnode_check_setflags(struct ucred *cred, struct vnode *vp,
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struct label *vplabel, u_long flags)
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{
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return (ugidfw_check_vp(cred, vp, MBI_ADMIN));
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}
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int
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ugidfw_vnode_check_setmode(struct ucred *cred, struct vnode *vp,
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struct label *vplabel, mode_t mode)
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{
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return (ugidfw_check_vp(cred, vp, MBI_ADMIN));
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}
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int
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ugidfw_vnode_check_setowner(struct ucred *cred, struct vnode *vp,
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struct label *vplabel, uid_t uid, gid_t gid)
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{
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return (ugidfw_check_vp(cred, vp, MBI_ADMIN));
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}
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int
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ugidfw_vnode_check_setutimes(struct ucred *cred, struct vnode *vp,
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struct label *vplabel, struct timespec atime, struct timespec utime)
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{
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return (ugidfw_check_vp(cred, vp, MBI_ADMIN));
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}
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int
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ugidfw_vnode_check_stat(struct ucred *active_cred,
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struct ucred *file_cred, struct vnode *vp, struct label *vplabel)
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{
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return (ugidfw_check_vp(active_cred, vp, MBI_STAT));
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}
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int
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ugidfw_vnode_check_unlink(struct ucred *cred, struct vnode *dvp,
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struct label *dvplabel, struct vnode *vp, struct label *vplabel,
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struct componentname *cnp)
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{
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int error;
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error = ugidfw_check_vp(cred, dvp, MBI_WRITE);
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if (error)
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return (error);
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return (ugidfw_check_vp(cred, vp, MBI_WRITE));
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}
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