Home | History | Annotate | Line # | Download | only in vfs
t_unpriv.c revision 1.6 
      1 /*	$NetBSD: t_unpriv.c,v 1.6 2012/03/15 12:57:27 njoly Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2011 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     17  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     18  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     19  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     20  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     21  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     22  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     23  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     24  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     25  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     26  * POSSIBILITY OF SUCH DAMAGE.
     27  */
     28 
     29 #include <sys/time.h>
     30 
     31 #include <atf-c.h>
     32 #include <libgen.h>
     33 #include <unistd.h>
     34 
     35 #include <rump/rump_syscalls.h>
     36 #include <rump/rump.h>
     37 
     38 #include "../common/h_fsmacros.h"
     39 #include "../../h_macros.h"
     40 
     41 #define USES_OWNER							 \
     42 	if (FSTYPE_MSDOS(tc))						 \
     43 	    atf_tc_skip("owner not supported by file system")
     44 
     45 static void
     46 owner(const atf_tc_t *tc, const char *mp)
     47 {
     48 
     49 	USES_OWNER;
     50 
     51 	FSTEST_ENTER();
     52 
     53 	rump_pub_lwproc_rfork(RUMP_RFCFDG);
     54 	if (rump_sys_setuid(1) == -1)
     55 		atf_tc_fail_errno("setuid");
     56         if (rump_sys_chown(".", 1, -1) != -1 || errno != EPERM)
     57 		atf_tc_fail_errno("chown");
     58         if (rump_sys_chmod(".", 0000) != -1 || errno != EPERM)
     59                 atf_tc_fail_errno("chmod");
     60 	rump_pub_lwproc_releaselwp();
     61 
     62 	if (rump_sys_chown(".", 1, -1) == -1)
     63 		atf_tc_fail_errno("chown");
     64 
     65 	rump_pub_lwproc_rfork(RUMP_RFCFDG);
     66 	if (rump_sys_setuid(1) == -1)
     67 		atf_tc_fail_errno("setuid");
     68         if (rump_sys_chown(".", 1, -1) == -1)
     69 		atf_tc_fail_errno("chown");
     70         if (rump_sys_chmod(".", 0000) == -1)
     71                 atf_tc_fail_errno("chmod");
     72 	rump_pub_lwproc_releaselwp();
     73 
     74 	FSTEST_EXIT();
     75 }
     76 
     77 static void
     78 dirperms(const atf_tc_t *tc, const char *mp)
     79 {
     80 	char name[] = "dir.test/file.test";
     81 	char *dir = dirname(name);
     82 	int fd;
     83 
     84 	if (FSTYPE_SYSVBFS(tc))
     85 		atf_tc_skip("directories not supported by file system");
     86 
     87 	FSTEST_ENTER();
     88 
     89 	if (rump_sys_mkdir(dir, 0777) == -1)
     90 		atf_tc_fail_errno("mkdir");
     91 
     92 	rump_pub_lwproc_rfork(RUMP_RFCFDG);
     93 	if (rump_sys_setuid(1) == -1)
     94 		atf_tc_fail_errno("setuid");
     95         if (rump_sys_open(name, O_RDWR|O_CREAT, 0666) != -1 || errno != EACCES)
     96 		atf_tc_fail_errno("open");
     97 	rump_pub_lwproc_releaselwp();
     98 
     99 	if ((fd = rump_sys_open(name, O_RDWR|O_CREAT, 0666)) == -1)
    100 		atf_tc_fail_errno("open");
    101 	if (rump_sys_close(fd) == -1)
    102 		atf_tc_fail_errno("close");
    103 
    104 	rump_pub_lwproc_rfork(RUMP_RFCFDG);
    105 	if (rump_sys_setuid(1) == -1)
    106 		atf_tc_fail_errno("setuid");
    107         if (rump_sys_unlink(name) != -1 || errno != EACCES)
    108 		atf_tc_fail_errno("unlink");
    109 	rump_pub_lwproc_releaselwp();
    110 
    111         if (rump_sys_unlink(name) == -1)
    112 		atf_tc_fail_errno("unlink");
    113 
    114 	if (rump_sys_rmdir(dir) == -1)
    115 		atf_tc_fail_errno("rmdir");
    116 
    117 	FSTEST_EXIT();
    118 }
    119 
    120 static void
    121 times(const atf_tc_t *tc, const char *mp)
    122 {
    123 	const char *name = "file.test";
    124 	int fd;
    125 
    126 	FSTEST_ENTER();
    127 
    128 	if ((fd = rump_sys_open(name, O_RDWR|O_CREAT, 0666)) == -1)
    129 		atf_tc_fail_errno("open");
    130 	if (rump_sys_close(fd) == -1)
    131 		atf_tc_fail_errno("close");
    132 
    133 	rump_pub_lwproc_rfork(RUMP_RFCFDG);
    134 	if (rump_sys_setuid(1) == -1)
    135 		atf_tc_fail_errno("setuid");
    136 	if (rump_sys_utimes(name, NULL) != -1 || errno != EACCES)
    137 		atf_tc_fail_errno("utimes");
    138 	rump_pub_lwproc_releaselwp();
    139 
    140 	if (rump_sys_utimes(name, NULL) == -1)
    141 		atf_tc_fail_errno("utimes");
    142 
    143 	if (rump_sys_unlink(name) == -1)
    144 		atf_tc_fail_errno("unlink");
    145 
    146 	FSTEST_EXIT();
    147 }
    148 
    149 ATF_TC_FSAPPLY(owner, "owner unprivileged checks");
    150 ATF_TC_FSAPPLY(dirperms, "directory permission checks");
    151 ATF_TC_FSAPPLY(times, "time set checks");
    152 
    153 ATF_TP_ADD_TCS(tp)
    154 {
    155 
    156 	ATF_TP_FSAPPLY(owner);
    157 	ATF_TP_FSAPPLY(dirperms);
    158 	ATF_TP_FSAPPLY(times);
    159 
    160 	return atf_no_error();
    161 }
    162