create a case to test ELOOP, ENOTDIR, EROFS error number for access(2) Signed-off-by: Xiaoguang Wang <[email protected]> --- runtest/syscalls | 1 + testcases/kernel/syscalls/.gitignore | 1 + testcases/kernel/syscalls/access/access06.c | 245 +++++++++++++++++++++++++++ 3 files changed, 247 insertions(+), 0 deletions(-) create mode 100644 testcases/kernel/syscalls/access/access06.c
diff --git a/runtest/syscalls b/runtest/syscalls index 09e5f7f..791de7c 100644 --- a/runtest/syscalls +++ b/runtest/syscalls @@ -9,6 +9,7 @@ access02 access02 access03 access03 access04 access04 access05 access05 +access06 access06 -D DEVICE -T DEVICE_FS_TYPE acct01 acct01 acct02 acct02 diff --git a/testcases/kernel/syscalls/.gitignore b/testcases/kernel/syscalls/.gitignore index ad23c2e..c005111 100644 --- a/testcases/kernel/syscalls/.gitignore +++ b/testcases/kernel/syscalls/.gitignore @@ -6,6 +6,7 @@ /access/access03 /access/access04 /access/access05 +/access/access06 /acct/acct01 /acct/acct02 /add_key/add_key01 diff --git a/testcases/kernel/syscalls/access/access06.c b/testcases/kernel/syscalls/access/access06.c new file mode 100644 index 0000000..c4a6dff --- /dev/null +++ b/testcases/kernel/syscalls/access/access06.c @@ -0,0 +1,245 @@ +/* + * Copyright (C) 2013 Fujitsu Ltd. + * Author: Xiaoguang Wang <[email protected]> + * + * 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 Description: + * Verify that, + * 1. access() fails with -1 return value and sets errno to ENOTDIR + * if a component used as a directory in pathname is not a directory. + * 2. access() fails with -1 return value and sets errno to ELOOP + * if too many symbolic links were encountered in resolving pathname. + * 3. access() fails with -1 return value and sets errno to EROFS + * if write permission was requested for a file on a read-only file system + */ + +#include <stdio.h> +#include <errno.h> +#include <unistd.h> +#include <fcntl.h> +#include <string.h> +#include <signal.h> +#include <sys/types.h> +#include <sys/stat.h> +#include <sys/mman.h> +#include <sys/mount.h> +#include <pwd.h> + +#include "test.h" +#include "usctest.h" +#include "safe_macros.h" + + +static void setup(void); +static void cleanup(void); + +static void help(void); +static void setup1(void); +static void setup2(void); +static void setup3(void); + +#define FILE_MODE (S_IRUSR|S_IWUSR|S_IRGRP|S_IROTH) +#define DIR_MODE (S_IRUSR|S_IWUSR|S_IXUSR|S_IRGRP| \ + S_IXGRP|S_IROTH|S_IXOTH) + +#define TEST_FILE1 "test_file1/test_file2" +#define TEST_FILE2 "test_file3" +#define TEST_FILE3 "mntpoint" + +static const char mntpoint[] = "mntpoint"; +static const char *fs_type = "ext3"; +static char *fstype; +static char *device; +static int tflag; +static int dflag; +static int mount_flag; + +static option_t options[] = { + {"T:", &tflag, &fstype}, + {"D:", &dflag, &device}, + {NULL, NULL, NULL} +}; + +static struct test_case_t { + char *pathname; + int a_mode; + int exp_errno; + void (*setupfunc) (void); +} test_cases[] = { + {TEST_FILE1, R_OK, ENOTDIR, setup1}, + {TEST_FILE2, R_OK, ELOOP, setup2}, + {TEST_FILE3, W_OK, EROFS, setup3} +}; + +char *TCID = "access06"; +int TST_TOTAL = sizeof(test_cases) / sizeof(*test_cases); +static int exp_enos[] = { ENOTDIR, ELOOP, EROFS, 0 }; + +int main(int ac, char **av) +{ + int lc; + char *msg; + char *file_name; + int access_mode; + int i; + + msg = parse_opts(ac, av, options, help); + if (msg != NULL) + tst_brkm(TBROK, NULL, "OPTION PARSING ERROR - %s", msg); + + /* Check for mandatory option of the testcase */ + if (!dflag) + tst_brkm(TBROK, NULL, "you must specify the device used " + "for mounting with -D option"); + if (tflag) + fs_type = fstype; + + setup(); + + TEST_EXP_ENOS(exp_enos); + + for (lc = 0; TEST_LOOPING(lc); lc++) { + tst_count = 0; + + for (i = 0; i < TST_TOTAL; i++) { + file_name = test_cases[i].pathname; + access_mode = test_cases[i].a_mode; + + /* + * Call access(2) to test different test conditions. + * verify that it fails with -1 return value and + * sets appropriate errno. + */ + TEST(access(file_name, access_mode)); + + if (TEST_RETURN != -1) { + tst_resm(TFAIL, "access(%s, %#o)" + "succeeded unexpectedly", + file_name, access_mode); + continue; + } + + if (TEST_ERRNO == test_cases[i].exp_errno) + tst_resm(TPASS | TTERRNO, + "access failed as expected"); + else + tst_resm(TFAIL | TTERRNO, + "access failed unexpectedly;" + "expected: %d - %s", + test_cases[i].exp_errno, + strerror(test_cases[i].exp_errno)); + } + } + + cleanup(); + tst_exit(); +} + +static void setup(void) +{ + int i; + + tst_sig(NOFORK, DEF_HANDLER, cleanup); + + tst_require_root(NULL); + + tst_mkfs(NULL, device, fstype, NULL); + + tst_tmpdir(); + + SAFE_MKDIR(cleanup, mntpoint, DIR_MODE); + + TEST_PAUSE; + + for (i = 0; i < TST_TOTAL; i++) + if (test_cases[i].setupfunc != NULL) + test_cases[i].setupfunc(); +} + +static void setup_file(const char *file, mode_t perms) +{ + int fd = open(file, O_RDWR | O_CREAT, FILE_MODE); + + if (fd == -1) + tst_brkm(TBROK | TERRNO, cleanup, + "open(%s, O_RDWR|O_CREAT, %#o) failed", + file, FILE_MODE); + + if (fchmod(fd, perms) < 0) + tst_brkm(TBROK | TERRNO, cleanup, + "fchmod(%s, %#o) failed", file, perms); + if (close(fd) == -1) + tst_brkm(TBROK | TERRNO, cleanup, + "close(%s) failed", file); +} + +/* + * setup1() -setup to create two regular files: test_file1 and test_file2 + */ +static void setup1(void) +{ + setup_file("test_file1", 0644); + setup_file("test_file2", 0644); +} + +/* + *setup2() -setup to create two symbolic links who point to each other. + */ +static void setup2(void) +{ + if (mkdir("dir1", 0755) < 0) + tst_brkm(TBROK | TERRNO, cleanup, + "create temporary directory dir1 failed"); + if (symlink("dir1/test_file3", "test_file3") < 0) + tst_brkm(TBROK | TERRNO, cleanup, + "create symbolink test_file3 to " + "dir1/test_file3 failed"); + if (symlink("../test_file3", "dir1/test_file3") < 0) + tst_brkm(TBROK | TERRNO, cleanup, + "create symbolink test_file3 in dir1 to " + "../test_file3 failed"); +} + +/* + *setup3() -setup to mount a readonly file system + */ +static void setup3(void) +{ + if (mount(device, mntpoint, fs_type, MS_RDONLY, NULL) < 0) + tst_brkm(TBROK | TERRNO, cleanup, + "mount device:%s failed", device); + mount_flag = 1; +} + +static void cleanup(void) +{ + TEST_CLEANUP; + + if (mount_flag && umount(mntpoint) < 0) + tst_brkm(TBROK | TERRNO, cleanup, + "umount device:%s failed", device); + mount_flag = 0; + tst_rmdir(); +} + +static void help(void) +{ + printf("-T type : specifies the type of filesystem to be mounted." + " Default ext3.\n"); + printf("-D device: device used for mounting.\n"); +} -- 1.7.1 Regards, Xiaoguang Wang ------------------------------------------------------------------------------ October Webinars: Code for Performance Free Intel webinars can help you accelerate application performance. 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