plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 1 | /* |
Stanislav Kholmanskikh | de8b8db | 2013-10-21 11:25:16 +0400 | [diff] [blame] | 2 | * Copyright (c) International Business Machines Corp., 2001 |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 3 | * |
Stanislav Kholmanskikh | de8b8db | 2013-10-21 11:25:16 +0400 | [diff] [blame] | 4 | * This program is free software; you can redistribute it and/or modify |
| 5 | * it under the terms of the GNU General Public License as published by |
| 6 | * the Free Software Foundation; either version 2 of the License, or |
| 7 | * (at your option) any later version. |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 8 | * |
Stanislav Kholmanskikh | de8b8db | 2013-10-21 11:25:16 +0400 | [diff] [blame] | 9 | * This program is distributed in the hope that it will be useful, |
| 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See |
| 12 | * the GNU General Public License for more details. |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 13 | * |
Stanislav Kholmanskikh | de8b8db | 2013-10-21 11:25:16 +0400 | [diff] [blame] | 14 | * You should have received a copy of the GNU General Public License |
| 15 | * along with this program; if not, write to the Free Software |
| 16 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 17 | * |
Stanislav Kholmanskikh | de8b8db | 2013-10-21 11:25:16 +0400 | [diff] [blame] | 18 | * Ported by John George |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 19 | */ |
| 20 | |
| 21 | /* |
Stanislav Kholmanskikh | de8b8db | 2013-10-21 11:25:16 +0400 | [diff] [blame] | 22 | * Test setregid() when executed by a non-root user. |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 23 | */ |
| 24 | |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 25 | #include <errno.h> |
| 26 | #include <grp.h> |
Garrett Cooper | bacc849 | 2011-01-14 00:36:17 -0800 | [diff] [blame] | 27 | #include <stdlib.h> |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 28 | #include <pwd.h> |
| 29 | #include <string.h> |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 30 | #include <sys/wait.h> |
| 31 | |
Stanislav Kholmanskikh | de8b8db | 2013-10-21 11:25:16 +0400 | [diff] [blame] | 32 | #include "test.h" |
Stanislav Kholmanskikh | de8b8db | 2013-10-21 11:25:16 +0400 | [diff] [blame] | 33 | #include "compat_16.h" |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 34 | |
Stanislav Kholmanskikh | de8b8db | 2013-10-21 11:25:16 +0400 | [diff] [blame] | 35 | TCID_DEFINE(setregid03); |
| 36 | static int fail = -1; |
| 37 | static int pass; |
| 38 | static gid_t neg_one = -1; |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 39 | |
| 40 | /* flag to tell parent if child passed or failed. */ |
Stanislav Kholmanskikh | de8b8db | 2013-10-21 11:25:16 +0400 | [diff] [blame] | 41 | static int flag; |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 42 | |
robbiew | 3667ecf | 2001-08-31 16:12:21 +0000 | [diff] [blame] | 43 | struct group users, sys, root, bin; |
plars | 47eadf0 | 2001-09-13 16:20:59 +0000 | [diff] [blame] | 44 | struct passwd nobody; |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 45 | /* |
| 46 | * The following structure contains all test data. Each structure in the array |
| 47 | * is used for a separate test. The tests are executed in the for loop below. |
| 48 | */ |
| 49 | |
| 50 | struct test_data_t { |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 51 | gid_t *real_gid; |
| 52 | gid_t *eff_gid; |
| 53 | int *exp_ret; |
| 54 | struct group *exp_real_usr; |
| 55 | struct group *exp_eff_usr; |
| 56 | char *test_msg; |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 57 | } test_data[] = { |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 58 | { |
Stanislav Kholmanskikh | de8b8db | 2013-10-21 11:25:16 +0400 | [diff] [blame] | 59 | &sys.gr_gid, &bin.gr_gid, &pass, &sys, &bin, |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 60 | "After setregid(sys, bin),"}, { |
Stanislav Kholmanskikh | de8b8db | 2013-10-21 11:25:16 +0400 | [diff] [blame] | 61 | &neg_one, &sys.gr_gid, &pass, &sys, &sys, "After setregid(-1, sys)"}, |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 62 | { |
Stanislav Kholmanskikh | de8b8db | 2013-10-21 11:25:16 +0400 | [diff] [blame] | 63 | &neg_one, &bin.gr_gid, &pass, &sys, &bin, "After setregid(-1, bin),"}, |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 64 | { |
Stanislav Kholmanskikh | de8b8db | 2013-10-21 11:25:16 +0400 | [diff] [blame] | 65 | &bin.gr_gid, &neg_one, &pass, &bin, &bin, "After setregid(bin, -1),"}, |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 66 | { |
| 67 | &neg_one, &neg_one, &pass, &bin, &bin, "After setregid(-1, -1),"}, { |
Stanislav Kholmanskikh | de8b8db | 2013-10-21 11:25:16 +0400 | [diff] [blame] | 68 | &neg_one, &bin.gr_gid, &pass, &bin, &bin, "After setregid(-1, bin),"}, |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 69 | { |
Stanislav Kholmanskikh | de8b8db | 2013-10-21 11:25:16 +0400 | [diff] [blame] | 70 | &bin.gr_gid, &neg_one, &pass, &bin, &bin, "After setregid(bin, -1),"}, |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 71 | { |
Stanislav Kholmanskikh | de8b8db | 2013-10-21 11:25:16 +0400 | [diff] [blame] | 72 | &bin.gr_gid, &bin.gr_gid, &pass, &bin, &bin, |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 73 | "After setregid(bin, bin),"}, { |
Stanislav Kholmanskikh | de8b8db | 2013-10-21 11:25:16 +0400 | [diff] [blame] | 74 | &sys.gr_gid, &neg_one, &fail, &bin, &bin, "After setregid(sys, -1)"}, |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 75 | { |
Stanislav Kholmanskikh | de8b8db | 2013-10-21 11:25:16 +0400 | [diff] [blame] | 76 | &neg_one, &sys.gr_gid, &fail, &bin, &bin, "After setregid(-1, sys)"}, |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 77 | { |
Stanislav Kholmanskikh | de8b8db | 2013-10-21 11:25:16 +0400 | [diff] [blame] | 78 | &sys.gr_gid, &sys.gr_gid, &fail, &bin, &bin, |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 79 | "After setregid(sys, sys)"},}; |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 80 | |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 81 | int TST_TOTAL = sizeof(test_data) / sizeof(test_data[0]); |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 82 | |
Stanislav Kholmanskikh | de8b8db | 2013-10-21 11:25:16 +0400 | [diff] [blame] | 83 | static void setup(void); |
| 84 | static void cleanup(void); |
| 85 | static void gid_verify(struct group *ru, struct group *eu, char *when); |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 86 | |
robbiew | f1ca238 | 2003-03-27 20:28:50 +0000 | [diff] [blame] | 87 | int main(int ac, char **av) |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 88 | { |
Cyril Hrubis | 89af32a | 2012-10-24 16:39:11 +0200 | [diff] [blame] | 89 | int lc; |
Cyril Hrubis | 0b9589f | 2014-05-27 17:40:33 +0200 | [diff] [blame] | 90 | const char *msg; |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 91 | |
Garrett Cooper | 60fa801 | 2010-11-22 13:50:58 -0800 | [diff] [blame] | 92 | if ((msg = parse_opts(ac, av, NULL, NULL)) != NULL) |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 93 | tst_brkm(TBROK, NULL, "OPTION PARSING ERROR - %s", msg); |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 94 | |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 95 | setup(); |
| 96 | |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 97 | for (lc = 0; TEST_LOOPING(lc); lc++) { |
Garrett Cooper | 60fa801 | 2010-11-22 13:50:58 -0800 | [diff] [blame] | 98 | pid_t pid; |
| 99 | int status, i; |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 100 | |
Stanislav Kholmanskikh | de8b8db | 2013-10-21 11:25:16 +0400 | [diff] [blame] | 101 | pass = 0; |
| 102 | flag = 0; |
| 103 | |
Caspar Zhang | d59a659 | 2013-03-07 14:59:12 +0800 | [diff] [blame] | 104 | tst_count = 0; |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 105 | |
| 106 | /* set the appropriate ownership values */ |
Stanislav Kholmanskikh | de8b8db | 2013-10-21 11:25:16 +0400 | [diff] [blame] | 107 | if (SETREGID(cleanup, sys.gr_gid, bin.gr_gid) == -1) |
Garrett Cooper | 60fa801 | 2010-11-22 13:50:58 -0800 | [diff] [blame] | 108 | tst_brkm(TBROK, NULL, "Initial setregid failed"); |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 109 | |
Stanislav Kholmanskikh | de8b8db | 2013-10-21 11:25:16 +0400 | [diff] [blame] | 110 | if (seteuid(nobody.pw_uid) == -1) |
Garrett Cooper | 60fa801 | 2010-11-22 13:50:58 -0800 | [diff] [blame] | 111 | tst_brkm(TBROK, NULL, "Initial seteuid failed"); |
Stanislav Kholmanskikh | de8b8db | 2013-10-21 11:25:16 +0400 | [diff] [blame] | 112 | |
robbiew | d34d581 | 2005-07-11 22:28:09 +0000 | [diff] [blame] | 113 | if ((pid = FORK_OR_VFORK()) == -1) { |
Garrett Cooper | 60fa801 | 2010-11-22 13:50:58 -0800 | [diff] [blame] | 114 | tst_brkm(TBROK, NULL, "fork failed"); |
| 115 | } else if (pid == 0) { /* child */ |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 116 | for (i = 0; i < TST_TOTAL; i++) { |
vapier | fa569e4 | 2006-07-08 14:51:23 +0000 | [diff] [blame] | 117 | gid_t test_ret; |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 118 | /* Set the real or effective group id */ |
Stanislav Kholmanskikh | de8b8db | 2013-10-21 11:25:16 +0400 | [diff] [blame] | 119 | TEST(SETREGID(NULL, *test_data[i].real_gid, |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 120 | *test_data[i].eff_gid)); |
vapier | fa569e4 | 2006-07-08 14:51:23 +0000 | [diff] [blame] | 121 | test_ret = TEST_RETURN; |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 122 | |
vapier | fa569e4 | 2006-07-08 14:51:23 +0000 | [diff] [blame] | 123 | if (test_ret == *test_data[i].exp_ret) { |
| 124 | if (test_ret == neg_one) { |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 125 | if (TEST_ERRNO != EPERM) { |
| 126 | tst_resm(TFAIL, |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 127 | "setregid(%d, %d) " |
| 128 | "did not set errno " |
| 129 | "value as expected.", |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 130 | *test_data |
| 131 | [i].real_gid, |
| 132 | *test_data |
| 133 | [i].eff_gid); |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 134 | fail = -1; |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 135 | continue; |
| 136 | } else { |
| 137 | tst_resm(TPASS, |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 138 | "setregid(%d, %d) " |
| 139 | "failed as expected.", |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 140 | *test_data |
| 141 | [i].real_gid, |
| 142 | *test_data |
| 143 | [i].eff_gid); |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 144 | } |
| 145 | } else { |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 146 | tst_resm(TPASS, |
| 147 | "setregid(%d, %d) " |
| 148 | "succeeded as expected.", |
| 149 | *test_data[i].real_gid, |
| 150 | *test_data[i].eff_gid); |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 151 | } |
| 152 | } else { |
| 153 | tst_resm(TFAIL, "setregid(%d, %d) " |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 154 | "did not return as expected.", |
| 155 | *test_data[i].real_gid, |
| 156 | *test_data[i].eff_gid); |
| 157 | flag = -1; |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 158 | } |
vapier | fa569e4 | 2006-07-08 14:51:23 +0000 | [diff] [blame] | 159 | if (test_ret == -1) { |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 160 | } |
| 161 | |
Cyril Hrubis | e38b961 | 2014-06-02 17:20:57 +0200 | [diff] [blame] | 162 | gid_verify(test_data[i].exp_real_usr, |
| 163 | test_data[i].exp_eff_usr, |
| 164 | test_data[i].test_msg); |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 165 | } |
| 166 | exit(flag); |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 167 | } else { /* parent */ |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 168 | waitpid(pid, &status, 0); |
| 169 | if (WEXITSTATUS(status) != 0) { |
| 170 | tst_resm(TFAIL, "test failed within " |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 171 | "child process."); |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 172 | } |
| 173 | } |
| 174 | } |
| 175 | cleanup(); |
Garrett Cooper | 1e6f5a6 | 2010-12-19 09:58:10 -0800 | [diff] [blame] | 176 | tst_exit(); |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 177 | } |
| 178 | |
Stanislav Kholmanskikh | de8b8db | 2013-10-21 11:25:16 +0400 | [diff] [blame] | 179 | static void setup(void) |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 180 | { |
Stanislav Kholmanskikh | de8b8db | 2013-10-21 11:25:16 +0400 | [diff] [blame] | 181 | struct group *junk; |
| 182 | |
Garrett Cooper | 60fa801 | 2010-11-22 13:50:58 -0800 | [diff] [blame] | 183 | tst_require_root(NULL); |
| 184 | |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 185 | tst_sig(FORK, DEF_HANDLER, cleanup); |
| 186 | |
Stanislav Kholmanskikh | de8b8db | 2013-10-21 11:25:16 +0400 | [diff] [blame] | 187 | if (getpwnam("nobody") == NULL) |
| 188 | tst_brkm(TBROK, NULL, "nobody must be a valid user."); |
plars | 47eadf0 | 2001-09-13 16:20:59 +0000 | [diff] [blame] | 189 | nobody = *(getpwnam("nobody")); |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 190 | |
Stanislav Kholmanskikh | de8b8db | 2013-10-21 11:25:16 +0400 | [diff] [blame] | 191 | #define GET_GID(group) do { \ |
| 192 | junk = getgrnam(#group); \ |
| 193 | if (junk == NULL) { \ |
| 194 | tst_brkm(TBROK, NULL, "%s must be a valid group", #group); \ |
| 195 | } \ |
| 196 | GID16_CHECK(junk->gr_gid, setregid, NULL); \ |
| 197 | group = *(junk); \ |
| 198 | } while (0) |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 199 | |
Stanislav Kholmanskikh | de8b8db | 2013-10-21 11:25:16 +0400 | [diff] [blame] | 200 | GET_GID(users); |
| 201 | GET_GID(sys); |
| 202 | GET_GID(bin); |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 203 | |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 204 | TEST_PAUSE; |
| 205 | } |
| 206 | |
Stanislav Kholmanskikh | de8b8db | 2013-10-21 11:25:16 +0400 | [diff] [blame] | 207 | static void cleanup(void) |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 208 | { |
Garrett Cooper | 60fa801 | 2010-11-22 13:50:58 -0800 | [diff] [blame] | 209 | } |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 210 | |
Stanislav Kholmanskikh | de8b8db | 2013-10-21 11:25:16 +0400 | [diff] [blame] | 211 | static void gid_verify(struct group *rg, struct group *eg, char *when) |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 212 | { |
| 213 | if ((getgid() != rg->gr_gid) || (getegid() != eg->gr_gid)) { |
Stanislav Kholmanskikh | de8b8db | 2013-10-21 11:25:16 +0400 | [diff] [blame] | 214 | tst_resm(TFAIL, "ERROR: %s real gid = %d; effective gid = %d", |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 215 | when, getgid(), getegid()); |
| 216 | tst_resm(TINFO, "Expected: real gid = %d; effective gid = %d", |
| 217 | rg->gr_gid, eg->gr_gid); |
| 218 | flag = -1; |
Stanislav Kholmanskikh | de8b8db | 2013-10-21 11:25:16 +0400 | [diff] [blame] | 219 | } else { |
| 220 | tst_resm(TPASS, "real or effective gid was modified as expected"); |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 221 | } |
Garrett Cooper | bacc849 | 2011-01-14 00:36:17 -0800 | [diff] [blame] | 222 | } |