260 lines
9.6 KiB
C
260 lines
9.6 KiB
C
/*-
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* Copyright (c) 2006 nCircle Network Security, Inc.
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* Copyright (c) 2007 Robert N. M. Watson
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* All rights reserved.
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*
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* This software was developed by Robert N. M. Watson for the TrustedBSD
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* Project under contract to nCircle Network Security, Inc.
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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, NCIRCLE NETWORK SECURITY,
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* INC., OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
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* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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/*
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* This is a joint test of both the read and write privileges with respect to
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* discretionary file system access control (permissions). Only permissions,
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* not ACL semantics, and only privilege-related checks are performed.
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*/
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <err.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include "main.h"
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static char fpath_none[1024];
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static char fpath_read[1024];
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static char fpath_write[1024];
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static char fpath_readwrite[1024];
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static int fpath_none_initialized;
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static int fpath_read_initialized;
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static int fpath_write_initialized;
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static int fpath_readwrite_initialized;
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static void
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try_io(const char *label, const char *fpathp, int asroot, int injail,
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int flags, int expected_error, int expected_errno)
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{
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int fd;
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fd = open(fpathp, flags);
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if (fd < 0) {
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if (expected_error != -1)
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warnx("%s(%s, %s): expected (%d, %d) got (-1, %d)",
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label, asroot ? "root" : "!root", injail ? "jail"
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: "!jail", expected_error, expected_errno, errno);
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} else {
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if (expected_error == -1)
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warnx("%s(%s, %s): expected (%d, %d) got 0", label,
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asroot ? "root" : "!root", injail ? "jail" :
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"!jail", expected_error, expected_errno);
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(void)close(fd);
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}
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}
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int
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priv_vfs_readwrite_fowner_setup(int asroot, int injail, struct test *test)
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{
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setup_file("priv_vfs_readwrite_fowner_setup: fpath_none", fpath_none,
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asroot ? UID_ROOT : UID_OWNER, GID_OTHER, 0000);
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fpath_none_initialized = 1;
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setup_file("priv_vfs_readwrite_fowner_setup: fpath_read", fpath_read,
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asroot ? UID_ROOT : UID_OWNER, GID_OTHER, 0400);
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fpath_read_initialized = 1;
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setup_file("priv_vfs_readwrite_fowner_setup: fpath_write",
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fpath_write, asroot ? UID_ROOT : UID_OWNER, GID_OTHER, 0200);
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fpath_write_initialized = 1;
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setup_file("priv_vfs_readwrite_fowner_setup: fpath_readwrite",
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fpath_readwrite, asroot ? UID_ROOT : UID_OWNER, GID_OTHER, 0600);
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fpath_readwrite_initialized = 1;
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return (0);
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}
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int
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priv_vfs_readwrite_fgroup_setup(int asroot, int injail, struct test *test)
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{
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setup_file("priv_vfs_readwrite_fgroup_setup: fpath_none", fpath_none,
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UID_OTHER, asroot ? GID_WHEEL : GID_OWNER, 0000);
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fpath_none_initialized = 1;
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setup_file("priv_vfs_readwrite_fgroup_setup: fpath_read", fpath_read,
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UID_OTHER, asroot ? GID_WHEEL : GID_OWNER, 0040);
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fpath_read_initialized = 1;
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setup_file("priv_vfs_readwrite_fgroup_setup: fpath_write",
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fpath_write, UID_OTHER, asroot ? GID_WHEEL : GID_OWNER, 0020);
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fpath_write_initialized = 1;
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setup_file("priv_vfs_readwrite_fgroup_setup: fpath_readwrite",
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fpath_readwrite, UID_OTHER, asroot ? GID_WHEEL : GID_OWNER,
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0060);
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fpath_readwrite_initialized = 1;
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return (0);
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}
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int
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priv_vfs_readwrite_fother_setup(int asroot, int injail, struct test *test)
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{
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setup_file("priv_vfs_readwrite_fother_setup: fpath_none", fpath_none,
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UID_OTHER, GID_OTHER, 0000);
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fpath_none_initialized = 1;
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setup_file("priv_vfs_readwrite_fother_setup: fpath_read", fpath_read,
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UID_OTHER, GID_OTHER, 0004);
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fpath_read_initialized = 1;
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setup_file("priv_vfs_readwrite_fother_setup: fpath_write",
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fpath_write, UID_OTHER, GID_OTHER, 0002);
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fpath_write_initialized = 1;
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setup_file("priv_vfs_readwrite_fother_setup: fpath_readwrite",
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fpath_readwrite, UID_OTHER, GID_OTHER, 0006);
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fpath_readwrite_initialized = 1;
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return (0);
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}
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void
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priv_vfs_readwrite_fowner(int asroot, int injail, struct test *test)
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{
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try_io("priv_vfs_readwrite_fowner(none, O_RDONLY)", fpath_none,
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asroot, injail, O_RDONLY, asroot ? 0 : -1, EACCES);
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try_io("priv_vfs_readwrite_fowner(none, O_WRONLY)", fpath_none,
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asroot, injail, O_WRONLY, asroot ? 0 : -1, EACCES);
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try_io("priv_vfs_readwrite_fowner(none, O_RDWR)", fpath_none,
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asroot, injail, O_RDWR, asroot ? 0 : -1, EACCES);
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try_io("priv_vfs_readwrite_fowner(read, O_RDONLY)", fpath_read,
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asroot, injail, O_RDONLY, 0, 0);
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try_io("priv_vfs_readwrite_fowner(read, O_WRONLY)", fpath_read,
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asroot, injail, O_WRONLY, asroot ? 0 : -1, EACCES);
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try_io("priv_vfs_readwrite_fowner(read, O_RDWR)", fpath_read,
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asroot, injail, O_RDWR, asroot ? 0 : -1, EACCES);
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try_io("priv_vfs_readwrite_fowner(write, O_RDONLY)", fpath_write,
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asroot, injail, O_RDONLY, asroot ? 0 : -1, EACCES);
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try_io("priv_vfs_readwrite_fowner(write, O_WRONLY)", fpath_write,
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asroot, injail, O_WRONLY, 0, 0);
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try_io("priv_vfs_readwrite_fowner(write, O_RDWR)", fpath_write,
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asroot, injail, O_RDWR, asroot ? 0 : -1, EACCES);
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try_io("priv_vfs_readwrite_fowner(write, O_RDONLY)", fpath_readwrite,
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asroot, injail, O_RDONLY, 0, 0);
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try_io("priv_vfs_readwrite_fowner(write, O_WRONLY)", fpath_readwrite,
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asroot, injail, O_WRONLY, 0, 0);
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try_io("priv_vfs_readwrite_fowner(write, O_RDWR)", fpath_readwrite,
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asroot, injail, O_RDWR, 0, 0);
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}
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void
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priv_vfs_readwrite_fgroup(int asroot, int injail, struct test *test)
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{
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try_io("priv_vfs_readwrite_fgroup(none, O_RDONLY)", fpath_none,
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asroot, injail, O_RDONLY, asroot ? 0 : -1, EACCES);
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try_io("priv_vfs_readwrite_fgroup(none, O_WRONLY)", fpath_none,
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asroot, injail, O_WRONLY, asroot ? 0 : -1, EACCES);
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try_io("priv_vfs_readwrite_fgroup(none, O_RDWR)", fpath_none,
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asroot, injail, O_RDWR, asroot ? 0 : -1, EACCES);
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try_io("priv_vfs_readwrite_fgroup(read, O_RDONLY)", fpath_read,
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asroot, injail, O_RDONLY, 0, 0);
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try_io("priv_vfs_readwrite_fgroup(read, O_WRONLY)", fpath_read,
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asroot, injail, O_WRONLY, asroot ? 0 : -1, EACCES);
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try_io("priv_vfs_readwrite_fgroup(read, O_RDWR)", fpath_read,
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asroot, injail, O_RDWR, asroot ? 0 : -1, EACCES);
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try_io("priv_vfs_readwrite_fgroup(write, O_RDONLY)", fpath_write,
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asroot, injail, O_RDONLY, asroot ? 0 : -1, EACCES);
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try_io("priv_vfs_readwrite_fgroup(write, O_WRONLY)", fpath_write,
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asroot, injail, O_WRONLY, 0, 0);
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try_io("priv_vfs_readwrite_fgroup(write, O_RDWR)", fpath_write,
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asroot, injail, O_RDWR, asroot ? 0 : -1, EACCES);
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try_io("priv_vfs_readwrite_fgroup(write, O_RDONLY)", fpath_readwrite,
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asroot, injail, O_RDONLY, 0, 0);
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try_io("priv_vfs_readwrite_fgroup(write, O_WRONLY)", fpath_readwrite,
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asroot, injail, O_WRONLY, 0, 0);
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try_io("priv_vfs_readwrite_fgroup(write, O_RDWR)", fpath_readwrite,
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asroot, injail, O_RDWR, 0, 0);
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}
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void
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priv_vfs_readwrite_fother(int asroot, int injail, struct test *test)
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{
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try_io("priv_vfs_readwrite_fother(none, O_RDONLY)", fpath_none,
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asroot, injail, O_RDONLY, asroot ? 0 : -1, EACCES);
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try_io("priv_vfs_readwrite_fother(none, O_WRONLY)", fpath_none,
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asroot, injail, O_WRONLY, asroot ? 0 : -1, EACCES);
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try_io("priv_vfs_readwrite_fother(none, O_RDWR)", fpath_none,
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asroot, injail, O_RDWR, asroot ? 0 : -1, EACCES);
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try_io("priv_vfs_readwrite_fother(read, O_RDONLY)", fpath_read,
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asroot, injail, O_RDONLY, 0, 0);
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try_io("priv_vfs_readwrite_fother(read, O_WRONLY)", fpath_read,
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asroot, injail, O_WRONLY, asroot ? 0 : -1, EACCES);
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try_io("priv_vfs_readwrite_fother(read, O_RDWR)", fpath_read,
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asroot, injail, O_RDWR, asroot ? 0 : -1, EACCES);
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try_io("priv_vfs_readwrite_fother(write, O_RDONLY)", fpath_write,
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asroot, injail, O_RDONLY, asroot ? 0 : -1, EACCES);
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try_io("priv_vfs_readwrite_fother(write, O_WRONLY)", fpath_write,
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asroot, injail, O_WRONLY, 0, 0);
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try_io("priv_vfs_readwrite_fother(write, O_RDWR)", fpath_write,
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asroot, injail, O_RDWR, asroot ? 0 : -1, EACCES);
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try_io("priv_vfs_readwrite_fother(write, O_RDONLY)", fpath_readwrite,
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asroot, injail, O_RDONLY, 0, 0);
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try_io("priv_vfs_readwrite_fother(write, O_WRONLY)", fpath_readwrite,
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asroot, injail, O_WRONLY, 0, 0);
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try_io("priv_vfs_readwrite_fother(write, O_RDWR)", fpath_readwrite,
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asroot, injail, O_RDWR, 0, 0);
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}
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void
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priv_vfs_readwrite_cleanup(int asroot, int injail, struct test *test)
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{
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if (fpath_none_initialized) {
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(void)unlink(fpath_none);
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fpath_none_initialized = 0;
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}
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if (fpath_read_initialized) {
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(void)unlink(fpath_read);
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fpath_read_initialized = 0;
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}
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if (fpath_write_initialized) {
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(void)unlink(fpath_write);
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fpath_write_initialized = 0;
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}
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if (fpath_readwrite_initialized) {
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(void)unlink(fpath_readwrite);
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fpath_readwrite_initialized = 0;
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}
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}
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