| /* |
| * |
| * Copyright (c) International Business Machines Corp., 2001 |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2 of the License, or |
| * (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See |
| * the GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| */ |
| |
| /* |
| * Test Name: mknod06 |
| * |
| * Test Description: |
| * Verify that, |
| * 1) mknod(2) returns -1 and sets errno to EEXIST if specified path |
| * already exists. |
| * 2) mknod(2) returns -1 and sets errno to EFAULT if pathname points |
| * outside user's accessible address space. |
| * 3) mknod(2) returns -1 and sets errno to ENOENT if the directory |
| * component in pathname does not exist. |
| * 4) mknod(2) returns -1 and sets errno to ENAMETOOLONG if the pathname |
| * component was too long. |
| * 5) mknod(2) returns -1 and sets errno to ENOTDIR if the directory |
| * component in pathname is not a directory. |
| * |
| * Expected Result: |
| * mknod() should fail with return value -1 and set expected errno. |
| * |
| * Algorithm: |
| * Setup: |
| * Setup signal handling. |
| * Create temporary directory. |
| * Pause for SIGUSR1 if option specified. |
| * |
| * Test: |
| * Loop if the proper options are given. |
| * Execute system call |
| * Check return code, if system call failed (return=-1) |
| * if errno set == expected errno |
| * Issue sys call fails with expected return value and errno. |
| * Otherwise, |
| * Issue sys call fails with unexpected errno. |
| * Otherwise, |
| * Issue sys call returns unexpected value. |
| * |
| * Cleanup: |
| * Print errno log and/or timing stats if options given |
| * Delete the temporary directory(s)/file(s) created. |
| * |
| * Usage: <for command-line> |
| * mknod06 [-c n] [-e] [-i n] [-I x] [-P x] [-t] |
| * where, -c n : Run n copies concurrently. |
| * -e : Turn on errno logging. |
| * -i n : Execute test n times. |
| * -I x : Execute test for x seconds. |
| * -P x : Pause for x seconds between iterations. |
| * -t : Turn on syscall timing. |
| * |
| * HISTORY |
| * 07/2001 Ported by Wayne Boyer |
| * |
| * RESTRICTIONS: |
| * This test should be executed by super-user (root) only. |
| */ |
| |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <unistd.h> |
| #include <errno.h> |
| #include <string.h> |
| #include <signal.h> |
| #include <sys/types.h> |
| #include <sys/stat.h> |
| #include <sys/param.h> |
| #include <sys/mman.h> |
| |
| #include "test.h" |
| |
| #define MODE_RWX S_IFIFO | S_IRWXU | S_IRWXG | S_IRWXO |
| |
| int setup1(); /* setup function to test mknod for EEXIST */ |
| int setup3(); /* setup function to test mknod for ENOTDIR */ |
| int longpath_setup(); /* setup function to test mknod for ENAMETOOLONG */ |
| int no_setup(); /* simply returns 0 to the caller */ |
| char Longpathname[PATH_MAX + 2]; |
| char High_address_node[64]; |
| |
| struct test_case_t { /* test case struct. to hold ref. test cond's */ |
| char *pathname; |
| char *desc; |
| int exp_errno; |
| int (*setupfunc) (); |
| } Test_cases[] = { |
| { |
| "tnode_1", "Specified node already exists", EEXIST, setup1}, |
| #if !defined(UCLINUX) |
| { |
| (char *)-1, "Negative address", EFAULT, no_setup}, { |
| High_address_node, "Address beyond address space", EFAULT, |
| no_setup}, |
| #endif |
| { |
| "testdir_2/tnode_2", "Non-existent file", ENOENT, no_setup}, { |
| "", "Pathname is empty", ENOENT, no_setup}, { |
| Longpathname, "Pathname too long", ENAMETOOLONG, longpath_setup}, { |
| "tnode/tnode_3", "Path contains regular file", ENOTDIR, setup3}, { |
| NULL, NULL, 0, no_setup} |
| }; |
| |
| char *TCID = "mknod06"; |
| int TST_TOTAL = ARRAY_SIZE(Test_cases); |
| #if !defined(UCLINUX) |
| extern char *get_high_address(); |
| #else |
| #endif |
| |
| char *bad_addr = 0; |
| |
| void setup(); /* setup function for the tests */ |
| void cleanup(); /* cleanup function for the tests */ |
| |
| int main(int ac, char **av) |
| { |
| int lc; |
| const char *msg; |
| char *node_name; /* ptr. for node name created */ |
| char *test_desc; /* test specific error message */ |
| int ind; /* counter to test different test conditions */ |
| |
| msg = parse_opts(ac, av, NULL, NULL); |
| if (msg != NULL) { |
| tst_brkm(TBROK, NULL, "OPTION PARSING ERROR - %s", msg); |
| |
| } |
| |
| /* |
| * Invoke setup function to call individual test setup functions |
| * for the test which run as root/super-user. |
| */ |
| setup(); |
| |
| for (lc = 0; TEST_LOOPING(lc); lc++) { |
| |
| tst_count = 0; |
| |
| for (ind = 0; Test_cases[ind].desc != NULL; ind++) { |
| node_name = Test_cases[ind].pathname; |
| test_desc = Test_cases[ind].desc; |
| |
| #if !defined(UCLINUX) |
| if (node_name == High_address_node) { |
| node_name = get_high_address(); |
| } |
| #endif |
| |
| /* |
| * Call mknod(2) to test different test conditions. |
| * verify that it fails with -1 return value and |
| * sets appropriate errno. |
| */ |
| TEST(mknod(node_name, MODE_RWX, 0)); |
| |
| /* Check return code from mknod(2) */ |
| if (TEST_RETURN != -1) { |
| tst_resm(TFAIL, |
| "mknod() returned %ld, expected " |
| "-1, errno:%d", TEST_RETURN, |
| Test_cases[ind].exp_errno); |
| continue; |
| } |
| |
| if (TEST_ERRNO == Test_cases[ind].exp_errno) { |
| tst_resm(TPASS, "mknod() fails, %s, errno:%d", |
| test_desc, TEST_ERRNO); |
| } else { |
| tst_resm(TFAIL, "mknod() fails, %s, errno:%d, " |
| "expected errno:%d", test_desc, |
| TEST_ERRNO, Test_cases[ind].exp_errno); |
| } |
| } |
| |
| } |
| |
| /* |
| * Invoke cleanup() to delete the test directories created |
| * in the setup(). |
| */ |
| cleanup(); |
| |
| tst_exit(); |
| } |
| |
| /* |
| * setup(void) - performs all ONE TIME setup for this test. |
| * Exit the test program on receipt of unexpected signals. |
| * Create a temporary directory used to hold test directories and nodes |
| * created and change the directory to it. |
| * Invoke individual test setup functions according to the order |
| * set in struct. definition. |
| */ |
| void setup(void) |
| { |
| int ind; |
| |
| tst_require_root(NULL); |
| |
| /* Capture unexpected signals */ |
| tst_sig(NOFORK, DEF_HANDLER, cleanup); |
| |
| TEST_PAUSE; |
| |
| /* Make a temp dir and cd to it */ |
| tst_tmpdir(); |
| |
| #if !defined(UCLINUX) |
| bad_addr = mmap(0, 1, PROT_NONE, |
| MAP_PRIVATE_EXCEPT_UCLINUX | MAP_ANONYMOUS, 0, 0); |
| if (bad_addr == MAP_FAILED) { |
| tst_brkm(TBROK, cleanup, "mmap failed"); |
| } |
| Test_cases[2].pathname = bad_addr; |
| #endif |
| /* call individual setup functions */ |
| for (ind = 0; Test_cases[ind].desc != NULL; ind++) { |
| Test_cases[ind].setupfunc(); |
| } |
| } |
| |
| /* |
| * no_setup() - Some test conditions for mknod(2) do not any setup. |
| * Hence, this function just returns 0. |
| */ |
| int no_setup(void) |
| { |
| return 0; |
| } |
| |
| /* |
| * longpath_setup() - setup to create a node with a name length exceeding |
| * the MAX. length of PATH_MAX. |
| * This function retruns 0. |
| */ |
| int longpath_setup(void) |
| { |
| int ind; /* counter variable */ |
| |
| for (ind = 0; ind <= (PATH_MAX + 1); ind++) { |
| Longpathname[ind] = 'a'; |
| } |
| return 0; |
| } |
| |
| /* |
| * setup1() - setup function for a test condition for which mknod(2) |
| * returns -1 and sets errno to EEXIST. |
| * This function creates a node using mknod(2) and tries to create |
| * same node in the test and fails with above errno. |
| * This function returns 0. |
| */ |
| int setup1(void) |
| { |
| /* Create a node using mknod */ |
| if (mknod("tnode_1", MODE_RWX, 0) < 0) { |
| tst_brkm(TBROK, cleanup, "Fails to create node in setup1()"); |
| } |
| |
| return 0; |
| } |
| |
| /* |
| * setup3() - setup function for a test condition for which mknod(2) |
| * returns -1 and sets errno to ENOTDIR. |
| * This function creates a node under temporary directory and the |
| * test attempts to create another node under under this node and fails |
| * with ENOTDIR as the node created here is a regular file. |
| * This function returns 0. |
| */ |
| int setup3(void) |
| { |
| /* Create a node using mknod */ |
| if (mknod("tnode", MODE_RWX, 0) < 0) { |
| tst_brkm(TBROK, cleanup, "Fails to create node in setup3()"); |
| } |
| |
| return 0; |
| } |
| |
| /* |
| * cleanup() - Performs all ONE TIME cleanup for this test at |
| * completion or premature exit. |
| * Print test timing stats and errno log if test executed with options. |
| * Remove temporary directory and sub-directories/files under it |
| * created during setup(). |
| * Exit the test program with normal exit code. |
| */ |
| void cleanup(void) |
| { |
| |
| tst_rmdir(); |
| |
| } |