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 root. |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 23 | */ |
| 24 | |
Stanislav Kholmanskikh | de8b8db | 2013-10-21 11:25:16 +0400 | [diff] [blame] | 25 | #include <errno.h> |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 26 | #include <pwd.h> |
| 27 | #include <grp.h> |
Garrett Cooper | bacc849 | 2011-01-14 00:36:17 -0800 | [diff] [blame] | 28 | #include <stdlib.h> |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 29 | #include <string.h> |
Stanislav Kholmanskikh | de8b8db | 2013-10-21 11:25:16 +0400 | [diff] [blame] | 30 | |
Garrett Cooper | e8530df | 2010-12-21 11:37:57 -0800 | [diff] [blame] | 31 | #include "test.h" |
Stanislav Kholmanskikh | de8b8db | 2013-10-21 11:25:16 +0400 | [diff] [blame] | 32 | #include "compat_16.h" |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 33 | |
Stanislav Kholmanskikh | de8b8db | 2013-10-21 11:25:16 +0400 | [diff] [blame] | 34 | TCID_DEFINE(setregid04); |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 35 | |
Stanislav Kholmanskikh | de8b8db | 2013-10-21 11:25:16 +0400 | [diff] [blame] | 36 | static gid_t neg_one = -1; |
| 37 | |
| 38 | static struct group users_gr, daemon_gr, root_gr, bin_gr; |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 39 | |
| 40 | /* |
| 41 | * The following structure contains all test data. Each structure in the array |
| 42 | * is used for a separate test. The tests are executed in the for loop below. |
| 43 | */ |
| 44 | |
| 45 | struct test_data_t { |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 46 | gid_t *real_gid; |
| 47 | gid_t *eff_gid; |
| 48 | struct group *exp_real_usr; |
| 49 | struct group *exp_eff_usr; |
yaberauneya | 0953632 | 2009-11-14 10:12:29 +0000 | [diff] [blame] | 50 | const char *test_msg; |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 51 | } test_data[] = { |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 52 | { |
Stanislav Kholmanskikh | de8b8db | 2013-10-21 11:25:16 +0400 | [diff] [blame] | 53 | &root_gr.gr_gid, &root_gr.gr_gid, &root_gr, &root_gr, |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 54 | "After setregid(root, root),"}, { |
Stanislav Kholmanskikh | de8b8db | 2013-10-21 11:25:16 +0400 | [diff] [blame] | 55 | &users_gr.gr_gid, &neg_one, &users_gr, &root_gr, |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 56 | "After setregid(users, -1)"}, { |
Stanislav Kholmanskikh | de8b8db | 2013-10-21 11:25:16 +0400 | [diff] [blame] | 57 | &root_gr.gr_gid, &neg_one, &root_gr, &root_gr, |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 58 | "After setregid(root,-1),"}, { |
| 59 | &neg_one, &neg_one, &root_gr, &root_gr, |
| 60 | "After setregid(-1, -1),"}, { |
Stanislav Kholmanskikh | de8b8db | 2013-10-21 11:25:16 +0400 | [diff] [blame] | 61 | &neg_one, &root_gr.gr_gid, &root_gr, &root_gr, |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 62 | "After setregid(-1, root)"}, { |
Stanislav Kholmanskikh | de8b8db | 2013-10-21 11:25:16 +0400 | [diff] [blame] | 63 | &root_gr.gr_gid, &neg_one, &root_gr, &root_gr, |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 64 | "After setregid(root, -1),"}, { |
Stanislav Kholmanskikh | de8b8db | 2013-10-21 11:25:16 +0400 | [diff] [blame] | 65 | &daemon_gr.gr_gid, &users_gr.gr_gid, &daemon_gr, &users_gr, |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 66 | "After setregid(daemon, users)"}, { |
| 67 | &neg_one, &neg_one, &daemon_gr, &users_gr, |
| 68 | "After setregid(-1, -1)"}, { |
Stanislav Kholmanskikh | de8b8db | 2013-10-21 11:25:16 +0400 | [diff] [blame] | 69 | &neg_one, &users_gr.gr_gid, &daemon_gr, &users_gr, |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 70 | "After setregid(-1, users)"} |
yaberauneya | 0953632 | 2009-11-14 10:12:29 +0000 | [diff] [blame] | 71 | }; |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 72 | |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 73 | int TST_TOTAL = sizeof(test_data) / sizeof(test_data[0]); |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 74 | |
Stanislav Kholmanskikh | de8b8db | 2013-10-21 11:25:16 +0400 | [diff] [blame] | 75 | static void setup(void); |
| 76 | static void cleanup(void); |
| 77 | static void gid_verify(struct group *ru, struct group *eu, const char *when); |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 78 | |
robbiew | f1ca238 | 2003-03-27 20:28:50 +0000 | [diff] [blame] | 79 | int main(int ac, char **av) |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 80 | { |
Cyril Hrubis | 89af32a | 2012-10-24 16:39:11 +0200 | [diff] [blame] | 81 | int lc; |
Cyril Hrubis | 0b9589f | 2014-05-27 17:40:33 +0200 | [diff] [blame] | 82 | const char *msg; |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 83 | |
Garrett Cooper | 5374050 | 2010-12-16 00:04:01 -0800 | [diff] [blame] | 84 | if ((msg = parse_opts(ac, av, NULL, NULL)) != NULL) |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 85 | tst_brkm(TBROK, NULL, "OPTION PARSING ERROR - %s", msg); |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 86 | |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 87 | setup(); |
| 88 | |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 89 | for (lc = 0; TEST_LOOPING(lc); lc++) { |
| 90 | int i; |
| 91 | |
Caspar Zhang | d59a659 | 2013-03-07 14:59:12 +0800 | [diff] [blame] | 92 | tst_count = 0; |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 93 | |
| 94 | for (i = 0; i < TST_TOTAL; i++) { |
| 95 | /* Set the real or effective group id */ |
Stanislav Kholmanskikh | de8b8db | 2013-10-21 11:25:16 +0400 | [diff] [blame] | 96 | TEST(SETREGID(cleanup, *test_data[i].real_gid, |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 97 | *test_data[i].eff_gid)); |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 98 | |
| 99 | if (TEST_RETURN == -1) { |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 100 | tst_resm(TBROK, "setregid(%d, %d) failed", |
subrata_modak | 923b23f | 2009-11-02 13:57:16 +0000 | [diff] [blame] | 101 | *test_data[i].real_gid, |
| 102 | *test_data[i].eff_gid); |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 103 | } else { |
Cyril Hrubis | e38b961 | 2014-06-02 17:20:57 +0200 | [diff] [blame] | 104 | gid_verify(test_data[i].exp_real_usr, |
| 105 | test_data[i].exp_eff_usr, |
| 106 | test_data[i].test_msg); |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 107 | } |
| 108 | } |
| 109 | } |
Garrett Cooper | 685b8e7 | 2010-11-22 13:23:01 -0800 | [diff] [blame] | 110 | |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 111 | cleanup(); |
Garrett Cooper | 1e6f5a6 | 2010-12-19 09:58:10 -0800 | [diff] [blame] | 112 | tst_exit(); |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 113 | } |
| 114 | |
yaberauneya | 0953632 | 2009-11-14 10:12:29 +0000 | [diff] [blame] | 115 | #define SAFE_GETGROUP(GROUPNAME) \ |
Stanislav Kholmanskikh | de8b8db | 2013-10-21 11:25:16 +0400 | [diff] [blame] | 116 | if (getgrnam(#GROUPNAME) == NULL) { \ |
yaberauneya | 0953632 | 2009-11-14 10:12:29 +0000 | [diff] [blame] | 117 | tst_brkm(TBROK, NULL, "Couldn't find the `" #GROUPNAME "' group"); \ |
yaberauneya | 0953632 | 2009-11-14 10:12:29 +0000 | [diff] [blame] | 118 | } \ |
Stanislav Kholmanskikh | de8b8db | 2013-10-21 11:25:16 +0400 | [diff] [blame] | 119 | GROUPNAME ## _gr = *(getgrnam(#GROUPNAME)); |
yaberauneya | 0953632 | 2009-11-14 10:12:29 +0000 | [diff] [blame] | 120 | |
Stanislav Kholmanskikh | de8b8db | 2013-10-21 11:25:16 +0400 | [diff] [blame] | 121 | static void setup(void) |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 122 | { |
Garrett Cooper | 685b8e7 | 2010-11-22 13:23:01 -0800 | [diff] [blame] | 123 | tst_require_root(NULL); |
| 124 | |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 125 | tst_sig(FORK, DEF_HANDLER, cleanup); |
| 126 | |
yaberauneya | 0953632 | 2009-11-14 10:12:29 +0000 | [diff] [blame] | 127 | SAFE_GETGROUP(root); |
| 128 | SAFE_GETGROUP(users); |
| 129 | SAFE_GETGROUP(daemon); |
| 130 | SAFE_GETGROUP(bin); |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 131 | |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 132 | TEST_PAUSE; |
| 133 | } |
| 134 | |
Stanislav Kholmanskikh | de8b8db | 2013-10-21 11:25:16 +0400 | [diff] [blame] | 135 | static void cleanup(void) |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 136 | { |
yaberauneya | 0953632 | 2009-11-14 10:12:29 +0000 | [diff] [blame] | 137 | } |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 138 | |
Stanislav Kholmanskikh | de8b8db | 2013-10-21 11:25:16 +0400 | [diff] [blame] | 139 | static void gid_verify(struct group *rg, struct group *eg, const char *when) |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 140 | { |
| 141 | if ((getgid() != rg->gr_gid) || (getegid() != eg->gr_gid)) { |
| 142 | tst_resm(TFAIL, "ERROR: %s real gid = %d; effective gid = %d", |
| 143 | when, getgid(), getegid()); |
| 144 | tst_resm(TINFO, "Expected: real gid = %d; effective gid = %d", |
| 145 | rg->gr_gid, eg->gr_gid); |
| 146 | } else { |
| 147 | tst_resm(TPASS, "real or effective gid was modified as " |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 148 | "expected"); |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 149 | } |
Garrett Cooper | bacc849 | 2011-01-14 00:36:17 -0800 | [diff] [blame] | 150 | } |