1 /* 2 * Copyright (c) Wipro Technologies Ltd, 2002. All Rights Reserved. 3 * 4 * This program is free software; you can redistribute it and/or modify it 5 * under the terms of version 2 of the GNU General Public License as 6 * published by the Free Software Foundation. 7 * 8 * This program is distributed in the hope that it would be useful, but 9 * WITHOUT ANY WARRANTY; without even the implied warranty of 10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 11 * 12 * You should have received a copy of the GNU General Public License along 13 * with this program; if not, write the Free Software Foundation, Inc., 14 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. 15 * 16 */ 17 /********************************************************** 18 * 19 * TEST IDENTIFIER : syslog11 20 * 21 * EXECUTED BY : root / superuser 22 * 23 * TEST TITLE : Basic tests for syslog(2) 24 * 25 * TEST CASE TOTAL : 11 26 * 27 * AUTHOR : Madhu T L <madhu.tarikere (at) wipro.com> 28 * 29 * SIGNALS 30 * Uses SIGUSR1 to pause before test if option set. 31 * (See the parse_opts(3) man page). 32 * 33 * DESCRIPTION 34 * Verify that, syslog(2) is successful for type ranging from 1 to 8 35 * 36 * Setup: 37 * Setup signal handling. 38 * Test caller is superuser 39 * Check existence of user nobody 40 * Pause for SIGUSR1 if option specified. 41 * 42 * Test: 43 * Loop if the proper options are given. 44 * Execute system call 45 * Check return value, if not successful, 46 * Issue FAIL message 47 * Otherwise, 48 * Issue PASS message 49 * 50 * Cleanup: 51 * Print errno log and/or timing stats if options given 52 * 53 * USAGE: <for command-line> 54 * syslog11 [-c n] [-e] [-f] [-h] [-i n] [-I x] [-p] [-P x] [-t] 55 * where, -c n : Run n copies concurrently. 56 * -e : Turn on errno logging. 57 * -f : Turn off functional testing 58 * -h : Show help screen 59 * -i n : Execute test n times. 60 * -I x : Execute test for x seconds. 61 * -p : Pause for SIGUSR1 before starting 62 * -P x : Pause for x seconds between iterations. 63 * -t : Turn on syscall timing. 64 * 65 ****************************************************************/ 66 67 #include <errno.h> 68 #include <pwd.h> 69 #include <sys/types.h> 70 #include <unistd.h> 71 #include <linux/unistd.h> 72 #include "test.h" 73 74 #define UNEXP_RET_VAL -1 75 76 struct test_case_t { /* test case structure */ 77 int type; /* 1st arg. */ 78 char *buf; /* 2nd arg. */ 79 int len; /* 3rd arg. */ 80 int (*setup) (void); /* Individual setup routine */ 81 void (*cleanup) (void); /* Individual cleanup routine */ 82 char *desc; /* Test description */ 83 }; 84 85 char *TCID = "syslog11"; 86 static int testno; 87 static char buf; 88 static struct passwd *ltpuser; 89 90 static void setup(void); 91 static void cleanup(void); 92 static int setup1(void); 93 static void cleanup1(void); 94 95 #define syslog(arg1, arg2, arg3) syscall(__NR_syslog, arg1, arg2, arg3) 96 97 static struct test_case_t tdat[] = { 98 /* Type 0 and 1 are currently not implemented, always returns success */ 99 {0, &buf, 0, NULL, NULL, "type 0/Close the log"}, 100 {1, &buf, 0, NULL, NULL, "type 1/Open the log"}, 101 {2, &buf, 0, NULL, NULL, "type 2/Read from the log"}, 102 {3, &buf, 0, NULL, NULL, "type 3/Read ring buffer"}, 103 {3, &buf, 0, setup1, cleanup1, "type 3/Read ring buffer for non-root " 104 "user"}, 105 /* Next two lines will clear dmesg. Uncomment if that is okay. -Robbie Williamson */ 106 /* { 4, &buf, 0, NULL, NULL, "type 4/Read and clear ring buffer" }, */ 107 /* { 5, &buf, 0, NULL, NULL, "type 5/Clear ring buffer" }, */ 108 109 {8, NULL, 1, NULL, NULL, "type 8/Set log level to 1"}, 110 {8, NULL, 7, NULL, NULL, "type 8/Set log level to 7(default)"}, 111 {6, NULL, 0, NULL, NULL, "type 6/Disable printk's to console"}, 112 {7, NULL, 0, NULL, NULL, "type 7/Enable printk's to console"}, 113 }; 114 115 int TST_TOTAL = sizeof(tdat) / sizeof(tdat[0]); 116 117 int main(int argc, char **argv) 118 { 119 int lc; 120 121 tst_parse_opts(argc, argv, NULL, NULL); 122 setup(); 123 124 for (lc = 0; TEST_LOOPING(lc); lc++) { 125 /* reset tst_count in case we are looping */ 126 tst_count = 0; 127 128 for (testno = 0; testno < TST_TOTAL; ++testno) { 129 130 if (tdat[testno].setup && tdat[testno].setup()) { 131 /* Setup failed, skip this testcase */ 132 continue; 133 } 134 135 TEST(syslog(tdat[testno].type, tdat[testno].buf, 136 tdat[testno].len)); 137 138 if (TEST_RETURN == UNEXP_RET_VAL) { 139 if (TEST_ERRNO == EPERM && geteuid() != 0) { 140 tst_resm(TPASS, 141 "syslog() passed for %s (non-root EPERM is OK)", 142 tdat[testno].desc); 143 } else { 144 tst_resm(TFAIL, 145 "syslog() failed for %s: errno " 146 "%d (%s)", tdat[testno].desc, 147 TEST_ERRNO, strerror(errno)); 148 } 149 } else { 150 tst_resm(TPASS, "syslog() successful for %s", 151 tdat[testno].desc); 152 } 153 154 if (tdat[testno].cleanup) { 155 tdat[testno].cleanup(); 156 } 157 } 158 } 159 cleanup(); 160 161 tst_exit(); 162 } 163 164 int setup1(void) 165 { 166 /* Change effective user id to nodody */ 167 if (seteuid(ltpuser->pw_uid) == -1) { 168 tst_resm(TBROK, "seteuid failed to set the effective" 169 " uid to %d", ltpuser->pw_uid); 170 return 1; 171 } 172 return 0; 173 } 174 175 void cleanup1(void) 176 { 177 /* Change effective user id to root */ 178 if (seteuid(0) == -1) { 179 tst_brkm(TBROK, NULL, "seteuid failed to set the effective" 180 " uid to root"); 181 } 182 } 183 184 /* 185 * setup() 186 * performs all ONE TIME setup for this test 187 */ 188 void setup(void) 189 { 190 tst_require_root(); 191 192 tst_sig(NOFORK, DEF_HANDLER, cleanup); 193 194 /* Check for nobody_uid user id */ 195 if ((ltpuser = getpwnam("nobody")) == NULL) { 196 tst_brkm(TBROK, NULL, "nobody user id doesn't exist"); 197 } 198 199 /* Pause if that option was specified 200 * TEST_PAUSE contains the code to fork the test with the -c option. 201 */ 202 TEST_PAUSE; 203 } 204 205 /* 206 * cleanup() 207 * performs all ONE TIME cleanup for this test at 208 * completion or premature exit 209 */ 210 void cleanup(void) 211 { 212 213 } 214
