| /* |
| * 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_module03 |
| * |
| * EXECUTED BY : root / superuser |
| * |
| * TEST TITLE : Checking error conditions for query_module(2) |
| * |
| * TEST CASE TOTAL : 4 |
| * |
| * 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) returns -1 and sets errno to EFAULT for module name |
| * argument outside program's accessible address space. |
| * 2. query_module(2) returns -1 and sets errno to EFAULT for return size |
| * argument outside program's accessible address space. |
| * 3. query_module(2) returns -1 and sets errno to EFAULT for output buffer |
| * argument outside program's accessible address space. |
| * 4. query_module(2) returns -1 and sets errno to ENOSPC for too small |
| * buffer size. |
| * |
| * Setup: |
| * Setup signal handling. |
| * Test caller is superuser |
| * Set expected errnos for logging |
| * Pause for SIGUSR1 if option specified. |
| * |
| * Test: |
| * Loop if the proper options are given. |
| * Execute system call |
| * Check return code and error number, if matching, |
| * Issue PASS message |
| * Otherwise, |
| * Issue FAIL message |
| * |
| * Cleanup: |
| * Print errno log and/or timing stats if options given |
| * |
| * USAGE: <for command-line> |
| * query_module03 [-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 <unistd.h> |
| #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 <sys/mman.h> |
| #include "test.h" |
| |
| #ifndef PAGE_SIZE |
| #define PAGE_SIZE sysconf(_SC_PAGE_SIZE) |
| #endif |
| |
| #define EXP_RET_VAL -1 |
| #define DUMMY_MOD "dummy_query_mod" |
| #define SMALLBUFSIZE 1 |
| |
| struct test_case_t { /* test case structure */ |
| char *modname; |
| int which; |
| void *buf; |
| size_t bufsize; |
| size_t *ret_size; |
| int experrno; /* expected errno */ |
| char *desc; |
| int (*setup) (void); |
| void (*cleanup) (void); |
| }; |
| |
| char *TCID = "query_module03"; |
| |
| static int testno; |
| static char out_buf[PAGE_SIZE]; |
| static size_t ret_size; |
| |
| char *bad_addr = 0; |
| |
| static void setup(void); |
| static void cleanup(void); |
| static int setup1(void); |
| static void cleanup1(void); |
| |
| static struct test_case_t tdat[] = { |
| |
| {(char *)-1, QM_MODULES, (void *)out_buf, sizeof(out_buf), &ret_size, |
| EFAULT, "results for module name argument outside program's " |
| "accessible address space", NULL, NULL} |
| , |
| |
| {NULL, QM_MODULES, (void *)out_buf, sizeof(out_buf), (size_t *) - 1, |
| EFAULT, "results for return size argument outside program's " |
| "accessible address space", NULL, NULL} |
| , |
| |
| {NULL, QM_MODULES, (void *)-1, sizeof(out_buf), &ret_size, EFAULT, |
| "results for output buffer argument outside program's " |
| "accessible address space", setup1, cleanup1} |
| , |
| |
| {NULL, QM_MODULES, (void *)out_buf, SMALLBUFSIZE, &ret_size, ENOSPC, |
| "results for too small buffer size", setup1, cleanup1}, |
| }; |
| |
| int TST_TOTAL = sizeof(tdat) / sizeof(tdat[0]); |
| |
| int main(int argc, char **argv) |
| { |
| int lc; |
| const char *msg; |
| |
| if ((msg = parse_opts(argc, argv, NULL, NULL)) != NULL) { |
| tst_brkm(TBROK, NULL, "OPTION PARSING ERROR - %s", msg); |
| } |
| |
| 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, tdat[testno].buf, |
| tdat[testno].bufsize, |
| tdat[testno].ret_size)); |
| if ((TEST_RETURN == EXP_RET_VAL) && |
| (TEST_ERRNO == tdat[testno].experrno)) { |
| tst_resm(TPASS, "Expected %s, errno: %d", |
| tdat[testno].desc, TEST_ERRNO); |
| } else { |
| tst_resm(TFAIL, "Unexpected %s ; returned" |
| " %d (expected %d), errno %d (expected" |
| " %d)", tdat[testno].desc, |
| TEST_RETURN, EXP_RET_VAL, |
| TEST_ERRNO, tdat[testno].experrno); |
| } |
| if (tdat[testno].cleanup) { |
| tdat[testno].cleanup(); |
| } |
| } |
| } |
| cleanup(); |
| tst_exit(); |
| } |
| |
| int setup1(void) |
| { |
| char cmd[80]; |
| |
| if (sprintf(cmd, "cp `which %s.o` ./", DUMMY_MOD) == -1) { |
| tst_resm(TBROK, "sprintf failed"); |
| return 1; |
| } |
| if (system(cmd) != 0) { |
| tst_resm(TBROK, "Failed to copy %s module", DUMMY_MOD); |
| return 1; |
| } |
| |
| /* Should use force to ignore kernel version & insure loading */ |
| /* -RW */ |
| /* if (sprintf(cmd, "insmod %s.o", DUMMY_MOD) == -1) { */ |
| if (sprintf(cmd, "insmod --force -q %s.o >/dev/null 2>&1", DUMMY_MOD) == |
| -1) { |
| tst_resm(TBROK, "sprintf failed"); |
| return 1; |
| } |
| if (system(cmd) != 0) { |
| tst_resm(TBROK, "Failed to load %s module", DUMMY_MOD); |
| 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); |
| } |
| } |
| |
| /* |
| * setup() |
| * performs all ONE TIME setup for this test |
| */ |
| void setup(void) |
| { |
| |
| tst_sig(FORK, DEF_HANDLER, cleanup); |
| |
| tst_require_root(NULL); |
| |
| if (tst_kvercmp(2, 5, 48) >= 0) |
| tst_brkm(TCONF, NULL, "This test will not work on " |
| "kernels after 2.5.48"); |
| |
| /* Pause if that option was specified |
| * TEST_PAUSE contains the code to fork the test with the -c option. |
| */ |
| TEST_PAUSE; |
| |
| bad_addr = mmap(0, 1, PROT_NONE, MAP_PRIVATE | MAP_ANONYMOUS, 0, 0); |
| if (bad_addr == MAP_FAILED) { |
| tst_brkm(TBROK, cleanup, "mmap failed"); |
| } |
| tdat[0].modname = bad_addr; |
| tdat[2].buf = (void *)bad_addr; |
| |
| } |
| |
| /* |
| * 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(); |
| } |