1865695bbc89088b9526ea9045410e5afb70a985cplars/* 2865695bbc89088b9526ea9045410e5afb70a985cplars * 3865695bbc89088b9526ea9045410e5afb70a985cplars * Copyright (c) International Business Machines Corp., 2001 4865695bbc89088b9526ea9045410e5afb70a985cplars * 5865695bbc89088b9526ea9045410e5afb70a985cplars * This program is free software; you can redistribute it and/or modify 6865695bbc89088b9526ea9045410e5afb70a985cplars * it under the terms of the GNU General Public License as published by 7865695bbc89088b9526ea9045410e5afb70a985cplars * the Free Software Foundation; either version 2 of the License, or 8865695bbc89088b9526ea9045410e5afb70a985cplars * (at your option) any later version. 9865695bbc89088b9526ea9045410e5afb70a985cplars * 10865695bbc89088b9526ea9045410e5afb70a985cplars * This program is distributed in the hope that it will be useful, 11865695bbc89088b9526ea9045410e5afb70a985cplars * but WITHOUT ANY WARRANTY; without even the implied warranty of 12865695bbc89088b9526ea9045410e5afb70a985cplars * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See 13865695bbc89088b9526ea9045410e5afb70a985cplars * the GNU General Public License for more details. 14865695bbc89088b9526ea9045410e5afb70a985cplars * 15865695bbc89088b9526ea9045410e5afb70a985cplars * You should have received a copy of the GNU General Public License 16865695bbc89088b9526ea9045410e5afb70a985cplars * along with this program; if not, write to the Free Software 174548c6cf9bcdd96d8303caa4130ab638b61f8a30Wanlong Gao * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 18865695bbc89088b9526ea9045410e5afb70a985cplars */ 19865695bbc89088b9526ea9045410e5afb70a985cplars 20865695bbc89088b9526ea9045410e5afb70a985cplars/* 21865695bbc89088b9526ea9045410e5afb70a985cplars * NAME 22865695bbc89088b9526ea9045410e5afb70a985cplars * msgrcv02.c 23865695bbc89088b9526ea9045410e5afb70a985cplars * 24865695bbc89088b9526ea9045410e5afb70a985cplars * DESCRIPTION 25865695bbc89088b9526ea9045410e5afb70a985cplars * msgrcv02 - test for EACCES and EFAULT errors 26865695bbc89088b9526ea9045410e5afb70a985cplars * 27865695bbc89088b9526ea9045410e5afb70a985cplars * ALGORITHM 28865695bbc89088b9526ea9045410e5afb70a985cplars * create a message queue with read/write permissions 29865695bbc89088b9526ea9045410e5afb70a985cplars * initialize a message buffer with a known message and type 30865695bbc89088b9526ea9045410e5afb70a985cplars * enqueue the message 31865695bbc89088b9526ea9045410e5afb70a985cplars * create another message queue without read/write permissions 32865695bbc89088b9526ea9045410e5afb70a985cplars * loop if that option was specified 33865695bbc89088b9526ea9045410e5afb70a985cplars * call msgrcv() using two different invalid cases 34865695bbc89088b9526ea9045410e5afb70a985cplars * check the errno value 35865695bbc89088b9526ea9045410e5afb70a985cplars * issue a PASS message if we get EACCES or EFAULT 36865695bbc89088b9526ea9045410e5afb70a985cplars * otherwise, the tests fails 37865695bbc89088b9526ea9045410e5afb70a985cplars * issue a FAIL message 38865695bbc89088b9526ea9045410e5afb70a985cplars * call cleanup 39865695bbc89088b9526ea9045410e5afb70a985cplars * 40865695bbc89088b9526ea9045410e5afb70a985cplars * USAGE: <for command-line> 41865695bbc89088b9526ea9045410e5afb70a985cplars * msgrcv02 [-c n] [-e] [-i n] [-I x] [-P x] [-t] 42865695bbc89088b9526ea9045410e5afb70a985cplars * where, -c n : Run n copies concurrently. 43865695bbc89088b9526ea9045410e5afb70a985cplars * -e : Turn on errno logging. 44865695bbc89088b9526ea9045410e5afb70a985cplars * -i n : Execute test n times. 45865695bbc89088b9526ea9045410e5afb70a985cplars * -I x : Execute test for x seconds. 46865695bbc89088b9526ea9045410e5afb70a985cplars * -P x : Pause for x seconds between iterations. 47865695bbc89088b9526ea9045410e5afb70a985cplars * -t : Turn on syscall timing. 48865695bbc89088b9526ea9045410e5afb70a985cplars * 49865695bbc89088b9526ea9045410e5afb70a985cplars * HISTORY 50865695bbc89088b9526ea9045410e5afb70a985cplars * 03/2001 - Written by Wayne Boyer 516d2b29e24b48f9a486738b7588e087eec2c5d650subrata_modak * 14/03/2008 Matthieu Fertré (Matthieu.Fertre@irisa.fr) 526d2b29e24b48f9a486738b7588e087eec2c5d650subrata_modak * - Fix concurrency issue. The second key used for this test could 536d2b29e24b48f9a486738b7588e087eec2c5d650subrata_modak * conflict with the key from another task. 546d2b29e24b48f9a486738b7588e087eec2c5d650subrata_modak 55865695bbc89088b9526ea9045410e5afb70a985cplars * 56865695bbc89088b9526ea9045410e5afb70a985cplars * RESTRICTIONS 57865695bbc89088b9526ea9045410e5afb70a985cplars * none 58865695bbc89088b9526ea9045410e5afb70a985cplars */ 59865695bbc89088b9526ea9045410e5afb70a985cplars 60c277a360a0c73acc733af2aef5c537e0c6dc8125robbiew#include <pwd.h> 61c277a360a0c73acc733af2aef5c537e0c6dc8125robbiew 62865695bbc89088b9526ea9045410e5afb70a985cplars#include "test.h" 63865695bbc89088b9526ea9045410e5afb70a985cplars 6423499f09a7c071dfe524cd7c130c67192a162d04robbiew#include "ipcmsg.h" 65865695bbc89088b9526ea9045410e5afb70a985cplars 66865695bbc89088b9526ea9045410e5afb70a985cplarsvoid cleanup(void); 67865695bbc89088b9526ea9045410e5afb70a985cplarsvoid setup(void); 68865695bbc89088b9526ea9045410e5afb70a985cplars 69865695bbc89088b9526ea9045410e5afb70a985cplarschar *TCID = "msgrcv02"; 70865695bbc89088b9526ea9045410e5afb70a985cplarsint TST_TOTAL = 2; 71865695bbc89088b9526ea9045410e5afb70a985cplars 72c277a360a0c73acc733af2aef5c537e0c6dc8125robbiewchar nobody_uid[] = "nobody"; 73c277a360a0c73acc733af2aef5c537e0c6dc8125robbiewstruct passwd *ltpuser; 74c277a360a0c73acc733af2aef5c537e0c6dc8125robbiew 75865695bbc89088b9526ea9045410e5afb70a985cplarsint msg_q_1 = -1; /* The message queue ID created in setup */ 76865695bbc89088b9526ea9045410e5afb70a985cplarsint msg_q_2 = -1; /* Another message queue ID created in setup */ 77865695bbc89088b9526ea9045410e5afb70a985cplarsMSGBUF snd_buf, rcv_buf; 78865695bbc89088b9526ea9045410e5afb70a985cplars 79865695bbc89088b9526ea9045410e5afb70a985cplarsstruct test_case_t { 80865695bbc89088b9526ea9045410e5afb70a985cplars int *queue_id; 81865695bbc89088b9526ea9045410e5afb70a985cplars MSGBUF *mbuf; 82865695bbc89088b9526ea9045410e5afb70a985cplars int error; 83865695bbc89088b9526ea9045410e5afb70a985cplars} TC[] = { 84865695bbc89088b9526ea9045410e5afb70a985cplars /* EACCES - the queue has no read access */ 8556207cec7732e09c216c751c0b5f88a242bacae6subrata_modak { 8656207cec7732e09c216c751c0b5f88a242bacae6subrata_modak &msg_q_2, &rcv_buf, EACCES}, 8756207cec7732e09c216c751c0b5f88a242bacae6subrata_modak /* EFAULT - the message buffer address is invalid */ 8856207cec7732e09c216c751c0b5f88a242bacae6subrata_modak { 8956207cec7732e09c216c751c0b5f88a242bacae6subrata_modak &msg_q_1, (MSGBUF *) - 1, EFAULT} 90865695bbc89088b9526ea9045410e5afb70a985cplars}; 91865695bbc89088b9526ea9045410e5afb70a985cplars 9223499f09a7c071dfe524cd7c130c67192a162d04robbiewint main(int ac, char **av) 93865695bbc89088b9526ea9045410e5afb70a985cplars{ 9489af32a63ce8a780ea39337339e14caae244b5a4Cyril Hrubis int lc; 95865695bbc89088b9526ea9045410e5afb70a985cplars int i; 96865695bbc89088b9526ea9045410e5afb70a985cplars 97d6d11d08678aac1ed2c370ea8e42e5f45aea07beCyril Hrubis tst_parse_opts(ac, av, NULL, NULL); 98865695bbc89088b9526ea9045410e5afb70a985cplars 9956207cec7732e09c216c751c0b5f88a242bacae6subrata_modak setup(); /* global setup */ 100865695bbc89088b9526ea9045410e5afb70a985cplars 101865695bbc89088b9526ea9045410e5afb70a985cplars /* The following loop checks looping state if -i option given */ 102865695bbc89088b9526ea9045410e5afb70a985cplars 103865695bbc89088b9526ea9045410e5afb70a985cplars for (lc = 0; TEST_LOOPING(lc); lc++) { 104d59a659cd639ca2780b00049d102acd2a783d585Caspar Zhang /* reset tst_count in case we are looping */ 105d59a659cd639ca2780b00049d102acd2a783d585Caspar Zhang tst_count = 0; 106865695bbc89088b9526ea9045410e5afb70a985cplars 10756207cec7732e09c216c751c0b5f88a242bacae6subrata_modak for (i = 0; i < TST_TOTAL; i++) { 108865695bbc89088b9526ea9045410e5afb70a985cplars 109865695bbc89088b9526ea9045410e5afb70a985cplars /* 110865695bbc89088b9526ea9045410e5afb70a985cplars * Use the TEST macro to make the call 111865695bbc89088b9526ea9045410e5afb70a985cplars */ 112bdbaec51a423e715c2b03ed9e497e9a1fba6103esubrata_modak 113865695bbc89088b9526ea9045410e5afb70a985cplars TEST(msgrcv(*(TC[i].queue_id), TC[i].mbuf, MSGSIZE, 11456207cec7732e09c216c751c0b5f88a242bacae6subrata_modak 1, IPC_NOWAIT)); 115bdbaec51a423e715c2b03ed9e497e9a1fba6103esubrata_modak 116865695bbc89088b9526ea9045410e5afb70a985cplars if (TEST_RETURN != -1) { 117865695bbc89088b9526ea9045410e5afb70a985cplars tst_resm(TFAIL, "call succeeded unexpectedly"); 118865695bbc89088b9526ea9045410e5afb70a985cplars continue; 119865695bbc89088b9526ea9045410e5afb70a985cplars } 120bdbaec51a423e715c2b03ed9e497e9a1fba6103esubrata_modak 121865695bbc89088b9526ea9045410e5afb70a985cplars if (TEST_ERRNO == TC[i].error) { 122865695bbc89088b9526ea9045410e5afb70a985cplars tst_resm(TPASS, "expected failure - errno = " 123865695bbc89088b9526ea9045410e5afb70a985cplars "%d : %s", TEST_ERRNO, 124865695bbc89088b9526ea9045410e5afb70a985cplars strerror(TEST_ERRNO)); 125865695bbc89088b9526ea9045410e5afb70a985cplars } else { 126865695bbc89088b9526ea9045410e5afb70a985cplars tst_resm(TFAIL, "call failed with an " 127865695bbc89088b9526ea9045410e5afb70a985cplars "unexpected error - %d : %s", 128865695bbc89088b9526ea9045410e5afb70a985cplars TEST_ERRNO, strerror(TEST_ERRNO)); 12956207cec7732e09c216c751c0b5f88a242bacae6subrata_modak } 130865695bbc89088b9526ea9045410e5afb70a985cplars } 131865695bbc89088b9526ea9045410e5afb70a985cplars } 132865695bbc89088b9526ea9045410e5afb70a985cplars 133865695bbc89088b9526ea9045410e5afb70a985cplars cleanup(); 134865695bbc89088b9526ea9045410e5afb70a985cplars 13553740500924f6439623a8ac256b5be2d6c59ed1fGarrett Cooper tst_exit(); 136865695bbc89088b9526ea9045410e5afb70a985cplars} 137865695bbc89088b9526ea9045410e5afb70a985cplars 138865695bbc89088b9526ea9045410e5afb70a985cplars/* 139865695bbc89088b9526ea9045410e5afb70a985cplars * setup() - performs all the ONE TIME setup for this test. 140865695bbc89088b9526ea9045410e5afb70a985cplars */ 14156207cec7732e09c216c751c0b5f88a242bacae6subrata_modakvoid setup(void) 142865695bbc89088b9526ea9045410e5afb70a985cplars{ 1436d2b29e24b48f9a486738b7588e087eec2c5d650subrata_modak key_t msgkey2; 1446d2b29e24b48f9a486738b7588e087eec2c5d650subrata_modak 145d1e794d62b1bf619df8390535e4c2a58899b1145Cyril Hrubis tst_require_root(); 146d4ceb37d3ab506483612ef0ad74c88e5828a9779Nicolas Joly 147865695bbc89088b9526ea9045410e5afb70a985cplars tst_sig(NOFORK, DEF_HANDLER, cleanup); 148865695bbc89088b9526ea9045410e5afb70a985cplars 149865695bbc89088b9526ea9045410e5afb70a985cplars TEST_PAUSE; 150865695bbc89088b9526ea9045410e5afb70a985cplars 15156207cec7732e09c216c751c0b5f88a242bacae6subrata_modak /* Switch to nobody user for correct error code collection */ 15256207cec7732e09c216c751c0b5f88a242bacae6subrata_modak ltpuser = getpwnam(nobody_uid); 15356207cec7732e09c216c751c0b5f88a242bacae6subrata_modak if (setuid(ltpuser->pw_uid) == -1) { 15456207cec7732e09c216c751c0b5f88a242bacae6subrata_modak tst_resm(TINFO, "setuid failed to " 15556207cec7732e09c216c751c0b5f88a242bacae6subrata_modak "to set the effective uid to %d", ltpuser->pw_uid); 15656207cec7732e09c216c751c0b5f88a242bacae6subrata_modak perror("setuid"); 15756207cec7732e09c216c751c0b5f88a242bacae6subrata_modak } 158c277a360a0c73acc733af2aef5c537e0c6dc8125robbiew 159865695bbc89088b9526ea9045410e5afb70a985cplars /* 160865695bbc89088b9526ea9045410e5afb70a985cplars * Create a temporary directory and cd into it. 161865695bbc89088b9526ea9045410e5afb70a985cplars * This helps to ensure that a unique msgkey is created. 162865695bbc89088b9526ea9045410e5afb70a985cplars * See ../lib/libipc.c for more information. 163865695bbc89088b9526ea9045410e5afb70a985cplars */ 164865695bbc89088b9526ea9045410e5afb70a985cplars tst_tmpdir(); 165865695bbc89088b9526ea9045410e5afb70a985cplars 166865695bbc89088b9526ea9045410e5afb70a985cplars msgkey = getipckey(); 167865695bbc89088b9526ea9045410e5afb70a985cplars 16856207cec7732e09c216c751c0b5f88a242bacae6subrata_modak /* Get an new IPC resource key. */ 1696d2b29e24b48f9a486738b7588e087eec2c5d650subrata_modak msgkey2 = getipckey(); 1706d2b29e24b48f9a486738b7588e087eec2c5d650subrata_modak 171865695bbc89088b9526ea9045410e5afb70a985cplars /* create a message queue with read/write permission */ 172865695bbc89088b9526ea9045410e5afb70a985cplars if ((msg_q_1 = msgget(msgkey, IPC_CREAT | IPC_EXCL | MSG_RW)) == -1) { 173865695bbc89088b9526ea9045410e5afb70a985cplars tst_brkm(TBROK, cleanup, "Can't create message queue #1"); 174865695bbc89088b9526ea9045410e5afb70a985cplars } 175865695bbc89088b9526ea9045410e5afb70a985cplars 176865695bbc89088b9526ea9045410e5afb70a985cplars /* initialize a message buffer */ 177865695bbc89088b9526ea9045410e5afb70a985cplars init_buf(&snd_buf, MSGTYPE, MSGSIZE); 178865695bbc89088b9526ea9045410e5afb70a985cplars 179865695bbc89088b9526ea9045410e5afb70a985cplars /* put it on msq_q_1 */ 180865695bbc89088b9526ea9045410e5afb70a985cplars if (msgsnd(msg_q_1, &snd_buf, MSGSIZE, IPC_NOWAIT) == -1) { 181865695bbc89088b9526ea9045410e5afb70a985cplars tst_brkm(TBROK, cleanup, "Couldn't put message on queue"); 182865695bbc89088b9526ea9045410e5afb70a985cplars } 183865695bbc89088b9526ea9045410e5afb70a985cplars 184865695bbc89088b9526ea9045410e5afb70a985cplars /* create a message queue without read/write permission */ 1856d2b29e24b48f9a486738b7588e087eec2c5d650subrata_modak if ((msg_q_2 = msgget(msgkey2, IPC_CREAT | IPC_EXCL)) == -1) { 186865695bbc89088b9526ea9045410e5afb70a985cplars tst_brkm(TBROK, cleanup, "Can't create message queue #2"); 187865695bbc89088b9526ea9045410e5afb70a985cplars } 188865695bbc89088b9526ea9045410e5afb70a985cplars} 189865695bbc89088b9526ea9045410e5afb70a985cplars 190865695bbc89088b9526ea9045410e5afb70a985cplars/* 191865695bbc89088b9526ea9045410e5afb70a985cplars * cleanup() - performs all the ONE TIME cleanup for this test at completion 192865695bbc89088b9526ea9045410e5afb70a985cplars * or premature exit. 193865695bbc89088b9526ea9045410e5afb70a985cplars */ 19456207cec7732e09c216c751c0b5f88a242bacae6subrata_modakvoid cleanup(void) 195865695bbc89088b9526ea9045410e5afb70a985cplars{ 196865695bbc89088b9526ea9045410e5afb70a985cplars /* if it exists, remove the message queue #1 */ 197865695bbc89088b9526ea9045410e5afb70a985cplars rm_queue(msg_q_1); 198865695bbc89088b9526ea9045410e5afb70a985cplars 199865695bbc89088b9526ea9045410e5afb70a985cplars /* if it exists, remove the message queue #2 */ 200865695bbc89088b9526ea9045410e5afb70a985cplars rm_queue(msg_q_2); 201865695bbc89088b9526ea9045410e5afb70a985cplars 202865695bbc89088b9526ea9045410e5afb70a985cplars tst_rmdir(); 203865695bbc89088b9526ea9045410e5afb70a985cplars 204ec6edca7aa42b6affd989ef91b5897f96795e40fChris Dearman} 205