| /* |
| * Copyright (c) Wipro Technologies Ltd, 2002. All Rights Reserved. |
| * |
| * This program is free software; you can redistribute it and/or modify it |
| * under the terms of version 2 of the GNU General Public License as |
| * published by the Free Software Foundation. |
| * |
| * This program is distributed in the hope that it would be useful, but |
| * WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. |
| * |
| * You should have received a copy of the GNU General Public License along |
| * with this program; if not, write the Free Software Foundation, Inc., |
| * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| */ |
| /********************************************************** |
| * |
| * TEST IDENTIFIER : query_module01 |
| * |
| * EXECUTED BY : root / superuser |
| * |
| * TEST TITLE : Checking functionality of query_module(2) |
| * |
| * TEST CASE TOTAL : 6 |
| * |
| * AUTHOR : Madhu T L <madhu.tarikere@wipro.com> |
| * |
| * SIGNALS |
| * Uses SIGUSR1 to pause before test if option set. |
| * (See the parse_opts(3) man page). |
| * |
| * DESCRIPTION |
| * Verify that, |
| * 1. query_module(2) is successful for NULL module name, which argument |
| * set to 0. |
| * 2. query_module(2) is successful for NULL module name, which argument |
| * set to QM_MODULES. |
| * 3. query_module(2) is successful for valid module name, which argument |
| * set to QM_DEPS. |
| * 4. query_module(2) is successful for valid module name, which argument |
| * set to QM_REFS. |
| * 5. query_module(2) is successful for valid module name, which argument |
| * set to QM_INFO. |
| * 6. query_module(2) is successful for valid module name, which argument |
| * set to QM_SYMBOLS. |
| * |
| * Setup: |
| * Setup signal handling. |
| * Test caller is superuser |
| * Initialize long module name |
| * Pause for SIGUSR1 if option specified. |
| * |
| * Test: |
| * Loop if the proper options are given. |
| * Execute system call |
| * Check return value and functionality, if success, |
| * Issue PASS message |
| * Otherwise, |
| * Issue FAIL message |
| * |
| * Cleanup: |
| * Print errno log and/or timing stats if options given |
| * |
| * USAGE: <for command-line> |
| * query_module01 [-c n] [-e] [-f] [-h] [-i n] [-I x] [-p] [-P x] [-t] |
| * where, -c n : Run n copies concurrently. |
| * -e : Turn on errno logging. |
| * -f : Turn off functional testing |
| * -h : Show help screen |
| * -i n : Execute test n times. |
| * -I x : Execute test for x seconds. |
| * -p : Pause for SIGUSR1 before starting |
| * -P x : Pause for x seconds between iterations. |
| * -t : Turn on syscall timing. |
| * |
| * RESTRICTIONS |
| * -c option has no effect for this testcase, even if used allows only |
| * one instance to run at a time. |
| * |
| * CHANGES |
| * |
| * 12/03/02 Added "force" to insmod to ignore kernel version. |
| * -Robbie Williamson <robbiew@us.ibm.com> |
| * |
| ****************************************************************/ |
| |
| #include <errno.h> |
| #include <pwd.h> |
| #include <sys/types.h> |
| #include <unistd.h> |
| #include <limits.h> |
| #include <asm/atomic.h> |
| #include <linux/module.h> |
| #include "test.h" |
| |
| #ifndef PAGE_SIZE |
| #define PAGE_SIZE sysconf(_SC_PAGE_SIZE) |
| #endif |
| |
| #define LONGMODNAMECHAR 'm' /* Arbitrarily selected */ |
| #define MODNAMEMAX (PAGE_SIZE + 1) |
| #define EXP_RET_VAL 0 |
| #define DUMMY_MOD "dummy_query_mod" |
| #define DUMMY_MOD_DEP "dummy_query_mod_dep" |
| #define QM_INVALID (QM_INFO + 100) |
| |
| /* Name of exported function in DUMMY_MOD */ |
| #define EXP_FUNC_NAME "dummy_func_test" |
| |
| struct test_case_t { /* test case structure */ |
| char *modname; |
| int which; |
| char *desc; |
| int (*setup) (void); /* Individual setup routine */ |
| void (*cleanup) (void); /* Individual cleanup routine */ |
| }; |
| |
| char *TCID = "query_module01"; |
| static char longmodname[MODNAMEMAX]; |
| static int testno; |
| static char out_buf[PAGE_SIZE]; |
| static size_t ret; |
| |
| static int test_functionality(int, char *, size_t, size_t); |
| static void setup(void); |
| static void cleanup(void); |
| static int setup1(void); |
| static void cleanup1(void); |
| static int setup2(void); |
| static void cleanup2(void); |
| |
| static struct test_case_t tdat[] = { |
| {NULL, 0, "module name: NULL, which: 0", NULL, NULL}, |
| |
| {NULL, QM_MODULES, "NULL module name, which: QM_MODULES", |
| setup1, cleanup1}, |
| |
| {DUMMY_MOD_DEP, QM_DEPS, "valid module name, which: QM_DEPS", |
| setup2, cleanup2}, |
| |
| {DUMMY_MOD, QM_REFS, "valid module name, which: QM_REFS", |
| setup2, cleanup2}, |
| |
| {DUMMY_MOD, QM_INFO, "valid module name, which: QM_INFO", |
| setup1, cleanup1}, |
| |
| {DUMMY_MOD, QM_SYMBOLS, "valid module name, which: QM_SYMBOLS", |
| setup1, cleanup1}, |
| }; |
| |
| int TST_TOTAL = sizeof(tdat) / sizeof(tdat[0]); |
| |
| int main(int argc, char **argv) |
| { |
| int lc; |
| size_t buflen = sizeof(out_buf); |
| |
| tst_parse_opts(argc, argv, NULL, NULL); |
| |
| tst_tmpdir(); |
| setup(); |
| |
| for (lc = 0; TEST_LOOPING(lc); lc++) { |
| /* reset tst_count in case we are looping */ |
| tst_count = 0; |
| |
| for (testno = 0; testno < TST_TOTAL; ++testno) { |
| if ((tdat[testno].setup) && (tdat[testno].setup())) { |
| /* setup() failed, skip this test */ |
| continue; |
| } |
| |
| TEST(query_module(tdat[testno].modname, |
| tdat[testno].which, (void *)out_buf, |
| buflen, &ret)); |
| |
| if ((TEST_RETURN == EXP_RET_VAL) && |
| !test_functionality(tdat[testno].which, |
| out_buf, buflen, ret)) { |
| tst_resm(TPASS, "query_module() successful " |
| "for %s", tdat[testno].desc); |
| } else { |
| tst_resm(TFAIL, "query_module() failed for " |
| "%s ; returned" |
| " %d (expected %d), errno %d (expected" |
| " 0)", tdat[testno].desc, |
| TEST_RETURN, EXP_RET_VAL, TEST_ERRNO); |
| } |
| if (tdat[testno].cleanup) { |
| tdat[testno].cleanup(); |
| } |
| } |
| } |
| cleanup(); |
| tst_exit(); |
| } |
| |
| int test_functionality(int which, char *buf, size_t bufsize, size_t ret) |
| { |
| int i = 0; |
| char *modname; |
| unsigned long *vals; |
| |
| switch (which) { |
| case 0: |
| /* Always return SUCCESS */ |
| return 0; |
| |
| case QM_MODULES: |
| case QM_DEPS: |
| /* Return SUCCESS if found DUMMY_MOD entry */ |
| modname = DUMMY_MOD; |
| break; |
| |
| case QM_REFS: |
| /* Return SUCCESS if found DUMMY_MOD_DEP entry */ |
| modname = DUMMY_MOD_DEP; |
| break; |
| |
| case QM_INFO: |
| /* |
| * Since module is already loaded, flags should show |
| * MOD_RUNNING |
| */ |
| if (((struct module_info *)buf)->flags & MOD_RUNNING) { |
| return 0; |
| } |
| return 1; |
| |
| case QM_SYMBOLS: |
| vals = (unsigned long *)buf; |
| |
| /* |
| * Find entry for atleast one symbol, checking for |
| * EXP_FUNC_NAME symbol, if found return SUCCESS. |
| */ |
| for (i = 0; i < ret; i++, vals += 2) { |
| |
| /* buf + vals[1] - address of symbol name */ |
| if (!strcmp(buf + vals[1], EXP_FUNC_NAME)) { |
| return 0; |
| } |
| } |
| return 1; |
| |
| default: |
| /* Unknown which type */ |
| return 1; |
| } |
| |
| /* Return SUCCESS if found entry */ |
| for (i = 0; i != ret; i++) { |
| if (strcmp(buf, modname)) { |
| buf += strlen(buf) + 1; |
| } else { |
| return 0; |
| } |
| } |
| return 1; |
| |
| } |
| |
| /* Insert a module of name mod */ |
| int insert_mod(char *mod) |
| { |
| char cmd[80]; |
| |
| if (sprintf(cmd, "cp `which %s.o` ./", mod) == -1) { |
| tst_resm(TBROK, "sprintf failed"); |
| return 1; |
| } |
| if (system(cmd) != 0) { |
| tst_resm(TBROK, "Failed to copy %s module", mod); |
| return 1; |
| } |
| |
| /* Should use force to ignore kernel version & insure loading */ |
| /* -RW */ |
| /* if (sprintf(cmd, "insmod %s.o", mod) == -1) { */ |
| if (sprintf(cmd, "insmod --force -q %s.o >/dev/null 2>&1", mod) == -1) { |
| tst_resm(TBROK, "sprintf failed"); |
| return 1; |
| } |
| if (system(cmd) != 0) { |
| tst_resm(TBROK, "Failed to load %s module", mod); |
| return 1; |
| } |
| return 0; |
| } |
| |
| int setup1(void) |
| { |
| if (insert_mod(DUMMY_MOD)) { |
| /* Failed */ |
| return 1; |
| } else { |
| return 0; |
| } |
| } |
| |
| int setup2(void) |
| { |
| if (insert_mod(DUMMY_MOD)) { |
| /* Failed */ |
| return 1; |
| } |
| if (insert_mod(DUMMY_MOD_DEP)) { |
| /* Falied to load DUMMY_MOD_DEP, unload DUMMY_MOD */ |
| cleanup1(); |
| return 1; |
| } |
| return 0; |
| } |
| |
| void cleanup1(void) |
| { |
| /* Remove the loadable module - DUMMY_MOD */ |
| if (system("rmmod " DUMMY_MOD) != 0) { |
| tst_brkm(TBROK, cleanup, "Failed to unload module %s", |
| DUMMY_MOD); |
| } |
| } |
| |
| void cleanup2(void) |
| { |
| /* Remove the loadable module - DUMMY_MOD_DEP */ |
| if (system("rmmod " DUMMY_MOD_DEP) != 0) { |
| tst_brkm(TBROK, cleanup, "Failed to unload module %s", |
| DUMMY_MOD_DEP); |
| } |
| /* Remove the loadable module - DUMMY_MOD */ |
| cleanup1(); |
| } |
| |
| /* |
| * setup() |
| * performs all ONE TIME setup for this test |
| */ |
| void setup(void) |
| { |
| |
| tst_sig(FORK, DEF_HANDLER, cleanup); |
| |
| tst_require_root(); |
| |
| if (tst_kvercmp(2, 5, 48) >= 0) |
| tst_brkm(TCONF, NULL, "This test will not work on " |
| "kernels after 2.5.48"); |
| |
| /* Initialize longmodname to LONGMODNAMECHAR character */ |
| memset(longmodname, LONGMODNAMECHAR, MODNAMEMAX - 1); |
| |
| /* Pause if that option was specified |
| * TEST_PAUSE contains the code to fork the test with the -c option. |
| */ |
| TEST_PAUSE; |
| } |
| |
| /* |
| * cleanup() |
| * performs all ONE TIME cleanup for this test at |
| * completion or premature exit |
| */ |
| void cleanup(void) |
| { |
| /* |
| * print timing stats if that option was specified. |
| * print errno log if that option was specified. |
| */ |
| |
| tst_rmdir(); |
| } |