1 /* 2 * 3 * Copyright (c) International Business Machines Corp., 2001 4 * 5 * This program is free software; you can redistribute it and/or modify 6 * it under the terms of the GNU General Public License as published by 7 * the Free Software Foundation; either version 2 of the License, or 8 * (at your option) any later version. 9 * 10 * This program is distributed in the hope that it will be useful, 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See 13 * the GNU General Public License for more details. 14 * 15 * You should have received a copy of the GNU General Public License 16 * along with this program; if not, write to the Free Software 17 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 18 */ 19 20 /* 21 * Test Name: setgroups02 22 * 23 * Test Description: 24 * Verify that, only root process can invoke setgroups() system call to 25 * set the supplementary group IDs of the process. 26 * 27 * Expected Result: 28 * The call succeeds in setting all the supplementary group IDs of the 29 * calling process. The new group should be set in the process supplemental 30 * group list. 31 * 32 * Algorithm: 33 * Setup: 34 * Setup signal handling. 35 * Pause for SIGUSR1 if option specified. 36 * 37 * Test: 38 * Loop if the proper options are given. 39 * Execute system call 40 * Check return code, if system call failed (return=-1) 41 * Log the errno and Issue a FAIL message. 42 * Otherwise, 43 * Verify the Functionality of system call 44 * if successful, 45 * Issue Functionality-Pass message. 46 * Otherwise, 47 * Issue Functionality-Fail message. 48 * Cleanup: 49 * Print errno log and/or timing stats if options given 50 * 51 * Usage: <for command-line> 52 * setgroups02 [-c n] [-f] [-i n] [-I x] [-P x] [-t] 53 * where, -c n : Run n copies concurrently. 54 * -f : Turn off functionality Testing. 55 * -i n : Execute test n times. 56 * -I x : Execute test for x seconds. 57 * -P x : Pause for x seconds between iterations. 58 * -t : Turn on syscall timing. 59 * 60 * HISTORY 61 * 07/2001 Ported by Wayne Boyer 62 * 63 * RESTRICTIONS: 64 * This test should be run by 'super-user' (root) only. 65 * 66 */ 67 #include <sys/types.h> 68 #include <unistd.h> 69 #include <errno.h> 70 #include <pwd.h> 71 #include <grp.h> 72 #include <sys/param.h> 73 74 #include "test.h" 75 76 #include "compat_16.h" 77 78 #define TESTUSER "nobody" 79 80 TCID_DEFINE(setgroups02); 81 int TST_TOTAL = 1; /* Total number of test conditions */ 82 GID_T groups_list[NGROUPS]; /* Array to hold gids for getgroups() */ 83 84 struct passwd *user_info; /* struct. to hold test user info */ 85 void setup(); /* setup function for the test */ 86 void cleanup(); /* cleanup function for the test */ 87 88 int main(int ac, char **av) 89 { 90 int lc, i; 91 int gidsetsize = 1; /* only one GID, the GID of TESTUSER */ 92 int PASS_FLAG = 0; /* used for checking group array */ 93 94 tst_parse_opts(ac, av, NULL, NULL); 95 96 setup(); 97 98 for (lc = 0; TEST_LOOPING(lc); lc++) { 99 100 tst_count = 0; 101 102 /* 103 * Call setgroups() to set supplimentary group IDs of 104 * the calling super-user process to gid of TESTUSER. 105 */ 106 TEST(SETGROUPS(cleanup, gidsetsize, groups_list)); 107 108 if (TEST_RETURN == -1) { 109 tst_resm(TFAIL, "setgroups(%d, groups_list) Failed, " 110 "errno=%d : %s", gidsetsize, TEST_ERRNO, 111 strerror(TEST_ERRNO)); 112 continue; 113 } 114 115 /* 116 * Call getgroups(2) to verify that 117 * setgroups(2) successfully set the 118 * supp. gids of TESTUSER. 119 */ 120 groups_list[0] = '\0'; 121 if (GETGROUPS(cleanup, gidsetsize, groups_list) < 0) { 122 tst_brkm(TFAIL, cleanup, "getgroups() Fails, " 123 "error=%d", errno); 124 } 125 for (i = 0; i < NGROUPS; i++) { 126 if (groups_list[i] == user_info->pw_gid) { 127 tst_resm(TPASS, 128 "Functionality of setgroups" 129 "(%d, groups_list) successful", 130 gidsetsize); 131 PASS_FLAG = 1; 132 } 133 } 134 if (PASS_FLAG == 0) { 135 tst_resm(TFAIL, "Supplimentary gid %d not set " 136 "for the process", user_info->pw_gid); 137 } 138 } 139 140 cleanup(); 141 tst_exit(); 142 } 143 144 /* 145 * setup() - performs all ONE TIME setup for this test. 146 * 147 * Make sure the test process uid is root. 148 * Get the supplimentrary group id of test user from /etc/passwd file. 149 */ 150 void setup(void) 151 { 152 153 tst_require_root(); 154 155 tst_sig(NOFORK, DEF_HANDLER, cleanup); 156 157 TEST_PAUSE; 158 159 /* Get the group id info. of TESTUSER from /etc/passwd */ 160 if ((user_info = getpwnam(TESTUSER)) == NULL) { 161 tst_brkm(TFAIL, cleanup, "getpwnam(2) of %s Failed", TESTUSER); 162 } 163 164 if (!GID_SIZE_CHECK(user_info->pw_gid)) { 165 tst_brkm(TBROK, 166 cleanup, 167 "gid returned from getpwnam is too large for testing setgroups16"); 168 } 169 170 groups_list[0] = user_info->pw_gid; 171 } 172 173 /* 174 * cleanup() - performs all ONE TIME cleanup for this test at 175 * completion or premature exit. 176 */ 177 void cleanup(void) 178 { 179 180 } 181
