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 * NAME 22 * msgctl04.c 23 * 24 * DESCRIPTION 25 * msgctl04 - test for EACCES, EFAULT and EINVAL errors using 26 * a variety of incorrect calls. 27 * 28 * ALGORITHM 29 * create two message queues 30 * loop if that option was specified 31 * try to access a queue with some invalid argument 32 * check the errno value 33 * issue a PASS message if we get EACCES, EFAULT or EINVAL 34 * depending on the test case 35 * otherwise, the tests fails 36 * issue a FAIL message 37 * call cleanup 38 * 39 * USAGE: <for command-line> 40 * msgctl04 [-c n] [-e] [-i n] [-I x] [-P x] [-t] 41 * where, -c n : Run n copies concurrently. 42 * -e : Turn on errno logging. 43 * -i n : Execute test n times. 44 * -I x : Execute test for x seconds. 45 * -P x : Pause for x seconds between iterations. 46 * -t : Turn on syscall timing. 47 * 48 * HISTORY 49 * 03/2001 - Written by Wayne Boyer 50 * 12/03/2008 Matthieu Fertr (Matthieu.Fertre (at) irisa.fr) 51 * - Fix concurrency issue. The second key used for this test could 52 * conflict with the key from another task. 53 * 54 * RESTRICTIONS 55 * none 56 */ 57 #include <pwd.h> 58 59 #include "test.h" 60 61 #include "ipcmsg.h" 62 63 char *TCID = "msgctl04"; 64 int TST_TOTAL = 6; 65 66 char nobody_uid[] = "nobody"; 67 struct passwd *ltpuser; 68 69 int msg_q_1 = -1; /* The message queue id created in setup */ 70 int msg_q_2 = -1; /* Another queue id created in setup */ 71 int bad_q = -1; /* a value to use as a bad queue id */ 72 73 struct msqid_ds q_buf; 74 75 struct test_case_t { /* This allows testing of many negative */ 76 int *queue_id; /* test cases that can all use the same */ 77 int ipc_cmd; /* basic test setup. */ 78 struct msqid_ds *buf; 79 int error; 80 } TC[] = { 81 /* EACCES - there is no read permission for the queue */ 82 { 83 &msg_q_1, IPC_STAT, &q_buf, EACCES}, 84 /* EFAULT - the structure address is invalid - IPC_STAT */ 85 { 86 &msg_q_2, IPC_STAT, (struct msqid_ds *)-1, EFAULT}, 87 /* EFAULT - the structure address is invalid - IPC_SET */ 88 { 89 &msg_q_2, IPC_SET, (struct msqid_ds *)-1, EFAULT}, 90 /* EINVAL - the command (-1) is invalid */ 91 { 92 &msg_q_2, -1, &q_buf, EINVAL}, 93 /* EINVAL - the queue id is invalid - IPC_STAT */ 94 { 95 &bad_q, IPC_STAT, &q_buf, EINVAL}, 96 /* EINVAL - the queue id is invalid - IPC_SET */ 97 { 98 &bad_q, IPC_SET, &q_buf, EINVAL} 99 }; 100 101 int main(int ac, char **av) 102 { 103 int lc; 104 int i; 105 106 tst_parse_opts(ac, av, NULL, NULL); 107 108 setup(); /* global setup */ 109 110 /* The following loop checks looping state if -i option given */ 111 112 for (lc = 0; TEST_LOOPING(lc); lc++) { 113 /* reset tst_count in case we are looping */ 114 tst_count = 0; 115 116 /* loop through the test cases */ 117 118 for (i = 0; i < TST_TOTAL; i++) { 119 120 TEST(msgctl(*(TC[i].queue_id), TC[i].ipc_cmd, 121 TC[i].buf)); 122 123 if (TEST_RETURN != -1) { 124 tst_resm(TFAIL, "msgctl() call succeeded " 125 "on expected fail"); 126 continue; 127 } 128 129 if (TEST_ERRNO == TC[i].error) { 130 tst_resm(TPASS | TTERRNO, "expected failure"); 131 } else { 132 tst_resm(TFAIL | TTERRNO, "unexpected error"); 133 tst_resm(TINFO, "expected error is - %d : %s", 134 TC[i].error, strerror(TC[i].error)); 135 } 136 } 137 } 138 139 cleanup(); 140 141 tst_exit(); 142 } 143 144 /* 145 * setup() - performs all the ONE TIME setup for this test. 146 */ 147 void setup(void) 148 { 149 key_t msgkey2; 150 151 tst_require_root(); 152 153 tst_sig(NOFORK, DEF_HANDLER, cleanup); 154 155 TEST_PAUSE; 156 157 /* Switch to nobody user for correct error code collection */ 158 ltpuser = getpwnam(nobody_uid); 159 if (setuid(ltpuser->pw_uid) == -1) 160 tst_resm(TINFO, "setuid(%d) failed", ltpuser->pw_uid); 161 162 /* 163 * Create a temporary directory and cd into it. 164 * This helps to ensure that a unique msgkey is created. 165 * See ../lib/libipc.c for more information. 166 */ 167 tst_tmpdir(); 168 169 msgkey = getipckey(); 170 171 /* Get an new IPC resource key. */ 172 msgkey2 = getipckey(); 173 174 /* now we have a key, so let's create a message queue */ 175 if ((msg_q_1 = msgget(msgkey, IPC_CREAT | IPC_EXCL)) == -1) { 176 tst_brkm(TBROK | TERRNO, cleanup, 177 "Can't create message queue #1"); 178 } 179 180 /* now let's create another message queue with read & write access */ 181 if ((msg_q_2 = 182 msgget(msgkey2, IPC_CREAT | IPC_EXCL | MSG_RD | MSG_WR)) == -1) { 183 tst_brkm(TBROK | TERRNO, cleanup, 184 "Can't create message queue #2"); 185 } 186 } 187 188 /* 189 * cleanup() - performs all the ONE TIME cleanup for this test at completion 190 * or premature exit. 191 */ 192 void cleanup(void) 193 { 194 /* 195 * remove the message queues that were created. 196 */ 197 rm_queue(msg_q_1); 198 199 rm_queue(msg_q_2); 200 201 tst_rmdir(); 202 203 } 204
