158 lines
3.6 KiB
C
158 lines
3.6 KiB
C
/* Copyright (c) Wipro Technologies Ltd, 2002. All Rights Reserved.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of version 2 of the GNU General Public License as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it would be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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*/
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/*
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* This test case checks whether swapon(2) system call returns
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* 1. ENOENT when the path does not exist
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* 2. EINVAL when the path exists but is invalid
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* 3. EPERM when user is not a superuser
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* 4. EBUSY when the specified path is already being used as a swap area
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*/
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#include <unistd.h>
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#include <errno.h>
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#include <stdlib.h>
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#include <sys/types.h>
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#include <sys/wait.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <pwd.h>
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#include <string.h>
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#include <sys/utsname.h>
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#include <signal.h>
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#include "test.h"
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#include "lapi/syscalls.h"
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#include "safe_macros.h"
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#include "libswapon.h"
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static void setup(void);
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static void cleanup(void);
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static void setup01(void);
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static void cleanup01(void);
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char *TCID = "swapon02";
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int TST_TOTAL = 4;
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static uid_t nobody_uid;
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static int do_swapoff;
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static long fs_type;
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static struct test_case_t {
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char *err_desc;
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int exp_errno;
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char *exp_errval;
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char *path;
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void (*setup)(void);
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void (*cleanup)(void);
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} testcases[] = {
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{"Path does not exist", ENOENT, "ENOENT", "./doesnotexist", NULL, NULL},
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{"Invalid path", EINVAL, "EINVAL", "./notswap", NULL, NULL},
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{"Permission denied", EPERM, "EPERM", "./swapfile01",
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setup01, cleanup01},
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{"File already used", EBUSY, "EBUSY", "./alreadyused", NULL, NULL},
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};
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static void verify_swapon(struct test_case_t *test)
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{
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if (test->setup)
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test->setup();
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TEST(ltp_syscall(__NR_swapon, test->path, 0));
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if (test->cleanup)
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test->cleanup();
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if (TEST_RETURN == -1 && TEST_ERRNO == test->exp_errno) {
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tst_resm(TPASS, "swapon(2) expected failure;"
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" Got errno - %s : %s",
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test->exp_errval, test->err_desc);
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return;
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}
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if (fs_type == TST_BTRFS_MAGIC && errno == EINVAL) {
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tst_resm(TCONF, "Swapfile on BTRFS not implemeted");
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return;
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}
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tst_resm(TFAIL, "swapon(2) failed to produce expected error:"
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" %d, errno: %s and got %d.", test->exp_errno,
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test->exp_errval, TEST_ERRNO);
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}
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int main(int ac, char **av)
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{
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int lc, i;
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tst_parse_opts(ac, av, NULL, NULL);
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setup();
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for (lc = 0; TEST_LOOPING(lc); lc++) {
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tst_count = 0;
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for (i = 0; i < TST_TOTAL; i++)
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verify_swapon(testcases + i);
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}
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cleanup();
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tst_exit();
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}
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static void setup01(void)
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{
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SAFE_SETEUID(cleanup, nobody_uid);
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}
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static void cleanup01(void)
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{
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SAFE_SETEUID(cleanup, 0);
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}
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static void setup(void)
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{
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struct passwd *nobody;
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tst_sig(FORK, DEF_HANDLER, cleanup);
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tst_require_root();
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nobody = SAFE_GETPWNAM(cleanup, "nobody");
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nobody_uid = nobody->pw_uid;
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tst_tmpdir();
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is_swap_supported(cleanup, "./tstswap");
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SAFE_TOUCH(cleanup, "notswap", 0777, NULL);
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make_swapfile(cleanup, "swapfile01", 0);
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make_swapfile(cleanup, "alreadyused", 0);
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if (ltp_syscall(__NR_swapon, "alreadyused", 0)) {
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if (fs_type != TST_BTRFS_MAGIC || errno != EINVAL)
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tst_resm(TWARN | TERRNO, "swapon(alreadyused) failed");
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} else {
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do_swapoff = 1;
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}
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TEST_PAUSE;
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}
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void cleanup(void)
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{
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if (do_swapoff && ltp_syscall(__NR_swapoff, "alreadyused"))
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tst_resm(TWARN | TERRNO, "swapoff(alreadyused) failed");
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tst_rmdir();
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}
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