Differential D21423 Diff 61843 tests/sys/posixshm/posixshm_test.c

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tests/sys/posixshm/posixshm_test.c

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#include <sys/param.h>		#include <sys/param.h>
#include <sys/mman.h>		#include <sys/mman.h>
#include <sys/resource.h>		#include <sys/resource.h>
#include <sys/stat.h>		#include <sys/stat.h>
#include <sys/syscall.h>		#include <sys/syscall.h>
#include <sys/wait.h>		#include <sys/wait.h>

		#include <ctype.h>
#include <errno.h>		#include <errno.h>
#include <fcntl.h>		#include <fcntl.h>
#include <signal.h>		#include <signal.h>
#include <stdio.h>		#include <stdio.h>
#include <stdlib.h>		#include <stdlib.h>
#include <string.h>		#include <string.h>
#include <unistd.h>		#include <unistd.h>

#include <atf-c.h>		#include <atf-c.h>

#define TEST_PATH_LEN 256		#define TEST_PATH_LEN 256
static char test_path[TEST_PATH_LEN];		static char test_path[TEST_PATH_LEN];
		static char test_path2[TEST_PATH_LEN];
		static unsigned int test_path_idx = 0;

static void		static void
gen_test_path(void)		gen_a_test_path(char *path)
{		{
		snprintf(path, TEST_PATH_LEN, "%s/tmp.XXXXXX%d",
		getenv("TMPDIR") == NULL ? "/tmp" : getenv("TMPDIR"),
		test_path_idx);

snprintf(test_path, sizeof(test_path), "%s/tmp.XXXXXX",		test_path_idx++;
getenv("TMPDIR") == NULL ? "/tmp" : getenv("TMPDIR"));
test_path[sizeof(test_path) - 1] = '\0';		ATF_REQUIRE_MSG(mkstemp(path) != -1,
ATF_REQUIRE_MSG(mkstemp(test_path) != -1,
"mkstemp failed; errno=%d", errno);		"mkstemp failed; errno=%d", errno);
ATF_REQUIRE_MSG(unlink(test_path) == 0,		ATF_REQUIRE_MSG(unlink(path) == 0,
"unlink failed; errno=%d", errno);		"unlink failed; errno=%d", errno);
}		}

		static void
		gen_test_path(void)
		{
		gen_a_test_path(test_path);
		}

		static void
		gen_test_path2(void)
		{
		gen_a_test_path(test_path2);
		}

/*		/*
* Attempt a shm_open() that should fail with an expected error of 'error'.		* Attempt a shm_open() that should fail with an expected error of 'error'.
*/		*/
static void		static void
shm_open_should_fail(const char *path, int flags, mode_t mode, int error)		shm_open_should_fail(const char *path, int flags, mode_t mode, int error)
{		{
int fd;		int fd;

Show All 13 Lines	shm_unlink_should_fail(const char *path, int error)

ATF_CHECK_MSG(shm_unlink(path) == -1, "shm_unlink didn't fail");		ATF_CHECK_MSG(shm_unlink(path) == -1, "shm_unlink didn't fail");
ATF_CHECK_MSG(error == errno,		ATF_CHECK_MSG(error == errno,
"shm_unlink didn't fail with expected errno; errno=%d; expected "		"shm_unlink didn't fail with expected errno; errno=%d; expected "
"errno=%d", errno, error);		"errno=%d", errno, error);
}		}

/*		/*
* Open the test object and write '1' to the first byte. Returns valid fd		* Open the test object and write a value to the first byte. Returns valid fd
* on success and -1 on failure.		* on success and -1 on failure.
*/		*/
static int		static int
scribble_object(void)		scribble_object(const char *path, char value)
{		{
char *page;		char *page;
int fd, pagesize;		int fd, pagesize;

gen_test_path();

ATF_REQUIRE(0 < (pagesize = getpagesize()));		ATF_REQUIRE(0 < (pagesize = getpagesize()));

fd = shm_open(test_path, O_CREAT\|O_EXCL\|O_RDWR, 0777);		fd = shm_open(path, O_CREAT\|O_EXCL\|O_RDWR, 0777);
if (fd < 0 && errno == EEXIST) {		if (fd < 0 && errno == EEXIST) {
if (shm_unlink(test_path) < 0)		if (shm_unlink(test_path) < 0)
atf_tc_fail("shm_unlink");		atf_tc_fail("shm_unlink");
fd = shm_open(test_path, O_CREAT \| O_EXCL \| O_RDWR, 0777);		fd = shm_open(test_path, O_CREAT \| O_EXCL \| O_RDWR, 0777);
}		}
if (fd < 0)		if (fd < 0)
atf_tc_fail("shm_open failed; errno=%d", errno);		atf_tc_fail("shm_open failed; errno=%d", errno);
if (ftruncate(fd, pagesize) < 0)		if (ftruncate(fd, pagesize) < 0)
atf_tc_fail("ftruncate failed; errno=%d", errno);		atf_tc_fail("ftruncate failed; errno=%d", errno);

page = mmap(0, pagesize, PROT_READ \| PROT_WRITE, MAP_SHARED, fd, 0);		page = mmap(0, pagesize, PROT_READ \| PROT_WRITE, MAP_SHARED, fd, 0);
if (page == MAP_FAILED)		if (page == MAP_FAILED)
atf_tc_fail("mmap failed; errno=%d", errno);		atf_tc_fail("mmap failed; errno=%d", errno);

page[0] = '1';		page[0] = value;
ATF_REQUIRE_MSG(munmap(page, pagesize) == 0, "munmap failed; errno=%d",		ATF_REQUIRE_MSG(munmap(page, pagesize) == 0, "munmap failed; errno=%d",
errno);		errno);

return (fd);		return (fd);
}		}

		/*
		* Fail the test case if the 'path' does not refer to an shm whose first byte
		* is equal to expected_value
		*/
		static void
		verify_object(const char *path, char expected_value)
		{
		int fd;
		int pagesize;
		char *page;

		ATF_REQUIRE(0 < (pagesize = getpagesize()));

		fd = shm_open(path, O_RDONLY, 0777);
		if (fd < 0)
		atf_tc_fail("shm_open failed in verify_object; errno=%d, path=%s",
		errno, path);

		page = mmap(0, pagesize, PROT_READ, MAP_SHARED, fd, 0);
		if (page == MAP_FAILED)
		atf_tc_fail("mmap(1)");
		if (page[0] != expected_value)
		atf_tc_fail("Renamed object has incorrect value; has"
		"%d (0x%x, '%c'), expected %d (0x%x, '%c')\n",
		page[0], page[0], isprint(page[0]) ? page[0] : ' ',
		expected_value, expected_value,
		isprint(expected_value) ? expected_value : ' ');
		ATF_REQUIRE_MSG(munmap(page, pagesize) == 0, "munmap failed; errno=%d",
		errno);
		close(fd);
		}

ATF_TC_WITHOUT_HEAD(remap_object);		ATF_TC_WITHOUT_HEAD(remap_object);
ATF_TC_BODY(remap_object, tc)		ATF_TC_BODY(remap_object, tc)
{		{
char *page;		char *page;
int fd, pagesize;		int fd, pagesize;

ATF_REQUIRE(0 < (pagesize = getpagesize()));		ATF_REQUIRE(0 < (pagesize = getpagesize()));

fd = scribble_object();		gen_test_path();
		fd = scribble_object(test_path, '1');

page = mmap(0, pagesize, PROT_READ \| PROT_WRITE, MAP_SHARED, fd, 0);		page = mmap(0, pagesize, PROT_READ \| PROT_WRITE, MAP_SHARED, fd, 0);
if (page == MAP_FAILED)		if (page == MAP_FAILED)
atf_tc_fail("mmap(2) failed; errno=%d", errno);		atf_tc_fail("mmap(2) failed; errno=%d", errno);

if (page[0] != '1')		if (page[0] != '1')
atf_tc_fail("missing data ('%c' != '1')", page[0]);		atf_tc_fail("missing data ('%c' != '1')", page[0]);

close(fd);		close(fd);
ATF_REQUIRE_MSG(munmap(page, pagesize) == 0, "munmap failed; errno=%d",		ATF_REQUIRE_MSG(munmap(page, pagesize) == 0, "munmap failed; errno=%d",
errno);		errno);

ATF_REQUIRE_MSG(shm_unlink(test_path) != -1,		ATF_REQUIRE_MSG(shm_unlink(test_path) != -1,
"shm_unlink failed; errno=%d", errno);		"shm_unlink failed; errno=%d", errno);
}		}

		ATF_TC_WITHOUT_HEAD(rename_from_anon);
		ATF_TC_BODY(rename_from_anon, tc)
		{
		int rc;

		gen_test_path();
		rc = shm_rename(SHM_ANON, test_path, 0);
		if (rc != -1)
		atf_tc_fail("shm_rename from SHM_ANON succeeded unexpectedly");
		}

		ATF_TC_WITHOUT_HEAD(rename_bad_path_pointer);
		ATF_TC_BODY(rename_bad_path_pointer, tc)
		{
		const char *bad_path;
		int rc;

		bad_path = (const char *)0x1;

		gen_test_path();
		rc = shm_rename(test_path, bad_path, 0);
		if (rc != -1)
		atf_tc_fail("shm_rename of nonexisting shm succeeded unexpectedly");

		rc = shm_rename(bad_path, test_path, 0);
		if (rc != -1)
		atf_tc_fail("shm_rename of nonexisting shm succeeded unexpectedly");
		}

		ATF_TC_WITHOUT_HEAD(rename_from_nonexisting);
		ATF_TC_BODY(rename_from_nonexisting, tc)
		{
		int rc;

		gen_test_path();
		rc = shm_rename(test_path, test_path2, 0);
		if (rc != -1)
		atf_tc_fail("shm_rename of nonexisting shm succeeded unexpectedly");

		if (errno != ENOENT)
		atf_tc_fail("Expected ENOENT to rename of nonexistent shm");
		}

		ATF_TC_WITHOUT_HEAD(rename_to_anon);
		ATF_TC_BODY(rename_to_anon, tc)
		{
		int rc;

		gen_test_path();
		rc = shm_rename(test_path, SHM_ANON, 0);
		if (rc != -1)
		atf_tc_fail("shm_rename to SHM_ANON succeeded unexpectedly");
		}

		ATF_TC_WITHOUT_HEAD(rename_to_replace);
		ATF_TC_BODY(rename_to_replace, tc)
		{
		char expected_value;
		int fd;
		int fd2;

		// Some contents we can verify later
		expected_value = 'g';

		gen_test_path();
		fd = scribble_object(test_path, expected_value);
		close(fd);

		// Give the other some different value so we can detect success
		gen_test_path2();
		fd2 = scribble_object(test_path2, 'h');
		close(fd2);

		ATF_REQUIRE_MSG(shm_rename(test_path, test_path2, 0) == 0,
		"shm_rename failed; errno=%d", errno);

		// Read back renamed; verify contents
		verify_object(test_path2, expected_value);
		}

		ATF_TC_WITHOUT_HEAD(rename_to_noreplace);
		ATF_TC_BODY(rename_to_noreplace, tc)
		{
		char expected_value_from;
		char expected_value_to;
		int fd_from;
		int fd_to;
		int rc;

		// Some contents we can verify later
		expected_value_from = 'g';
		gen_test_path();
		fd_from = scribble_object(test_path, expected_value_from);
		close(fd_from);

		// Give the other some different value so we can detect success
		expected_value_to = 'h';
		gen_test_path2();
		fd_to = scribble_object(test_path2, expected_value_to);
		close(fd_to);

		rc = shm_rename(test_path, test_path2, SHM_RENAME_NOREPLACE);
		ATF_REQUIRE_MSG((rc == -1) && (errno == EEXIST),
		"shm_rename didn't fail as expected; errno: %d; return: %d", errno,
		rc);

		// Read back renamed; verify contents
		verify_object(test_path2, expected_value_to);
		}

		ATF_TC_WITHOUT_HEAD(rename_to_exchange);
		ATF_TC_BODY(rename_to_exchange, tc)
		{
		char expected_value_from;
		char expected_value_to;
		int fd_from;
		int fd_to;

		// Some contents we can verify later
		expected_value_from = 'g';
		gen_test_path();
		fd_from = scribble_object(test_path, expected_value_from);
		close(fd_from);

		// Give the other some different value so we can detect success
		expected_value_to = 'h';
		gen_test_path2();
		fd_to = scribble_object(test_path2, expected_value_to);
		close(fd_to);

		ATF_REQUIRE_MSG(shm_rename(test_path, test_path2,
		SHM_RENAME_EXCHANGE) == 0,
		"shm_rename failed; errno=%d", errno);

		// Read back renamed; verify contents
		verify_object(test_path, expected_value_to);
		verify_object(test_path2, expected_value_from);
		}

		ATF_TC_WITHOUT_HEAD(rename_to_exchange_nonexisting);
		ATF_TC_BODY(rename_to_exchange_nonexisting, tc)
		{
		char expected_value_from;
		int fd_from;

		// Some contents we can verify later
		expected_value_from = 'g';
		gen_test_path();
		fd_from = scribble_object(test_path, expected_value_from);
		close(fd_from);

		gen_test_path2();

		ATF_REQUIRE_MSG(shm_rename(test_path, test_path2,
		SHM_RENAME_EXCHANGE) == 0,
		"shm_rename failed; errno=%d", errno);

		// Read back renamed; verify contents
		verify_object(test_path2, expected_value_from);
		}

		ATF_TC_WITHOUT_HEAD(rename_to_self);
		ATF_TC_BODY(rename_to_self, tc)
		{
		int fd;
		char expected_value;

		expected_value = 't';

		gen_test_path();
		fd = scribble_object(test_path, expected_value);
		close(fd);

		ATF_REQUIRE_MSG(shm_rename(test_path, test_path, 0) == 0,
		"shm_rename failed; errno=%d", errno);

		verify_object(test_path, expected_value);
		}

		ATF_TC_WITHOUT_HEAD(rename_bad_flag);
		ATF_TC_BODY(rename_bad_flag, tc)
		{
		int fd;
		int rc;

		/* Make sure we don't fail out due to ENOENT */
		gen_test_path();
		gen_test_path2();
		fd = scribble_object(test_path, 'd');
		close(fd);
		fd = scribble_object(test_path2, 'd');
		close(fd);

		/*
		* Note: if we end up with enough flags that we use all the bits,
		* then remove this test completely.
		*/
		rc = shm_rename(test_path, test_path2, INT_MIN);
		ATF_REQUIRE_MSG((rc == -1) && (errno == EINVAL),
		"shm_rename should have failed with EINVAL; got: return=%d, "
		"errno=%d", rc, errno);
		}

ATF_TC_WITHOUT_HEAD(reopen_object);		ATF_TC_WITHOUT_HEAD(reopen_object);
ATF_TC_BODY(reopen_object, tc)		ATF_TC_BODY(reopen_object, tc)
{		{
char *page;		char *page;
int fd, pagesize;		int fd, pagesize;

ATF_REQUIRE(0 < (pagesize = getpagesize()));		ATF_REQUIRE(0 < (pagesize = getpagesize()));

fd = scribble_object();		gen_test_path();
		fd = scribble_object(test_path, '1');
close(fd);		close(fd);

fd = shm_open(test_path, O_RDONLY, 0777);		fd = shm_open(test_path, O_RDONLY, 0777);
if (fd < 0)		if (fd < 0)
atf_tc_fail("shm_open(2) failed; errno=%d", errno);		atf_tc_fail("shm_open(2) failed; errno=%d", errno);

page = mmap(0, pagesize, PROT_READ, MAP_SHARED, fd, 0);		page = mmap(0, pagesize, PROT_READ, MAP_SHARED, fd, 0);
if (page == MAP_FAILED)		if (page == MAP_FAILED)
▲ Show 20 Lines • Show All 460 Lines • ▼ Show 20 Lines	ATF_TC_BODY(cloexec, tc)
close(fd);		close(fd);
}		}


ATF_TP_ADD_TCS(tp)		ATF_TP_ADD_TCS(tp)
{		{

ATF_TP_ADD_TC(tp, remap_object);		ATF_TP_ADD_TC(tp, remap_object);
		ATF_TP_ADD_TC(tp, rename_from_anon);
		ATF_TP_ADD_TC(tp, rename_bad_path_pointer);
		ATF_TP_ADD_TC(tp, rename_from_nonexisting);
		ATF_TP_ADD_TC(tp, rename_to_anon);
		ATF_TP_ADD_TC(tp, rename_to_replace);
		ATF_TP_ADD_TC(tp, rename_to_noreplace);
		ATF_TP_ADD_TC(tp, rename_to_exchange);
		ATF_TP_ADD_TC(tp, rename_to_exchange_nonexisting);
		ATF_TP_ADD_TC(tp, rename_to_self);
		ATF_TP_ADD_TC(tp, rename_bad_flag);
ATF_TP_ADD_TC(tp, reopen_object);		ATF_TP_ADD_TC(tp, reopen_object);
ATF_TP_ADD_TC(tp, readonly_mmap_write);		ATF_TP_ADD_TC(tp, readonly_mmap_write);
ATF_TP_ADD_TC(tp, open_after_link);		ATF_TP_ADD_TC(tp, open_after_link);
ATF_TP_ADD_TC(tp, open_invalid_path);		ATF_TP_ADD_TC(tp, open_invalid_path);
ATF_TP_ADD_TC(tp, open_write_only);		ATF_TP_ADD_TC(tp, open_write_only);
ATF_TP_ADD_TC(tp, open_extra_flags);		ATF_TP_ADD_TC(tp, open_extra_flags);
ATF_TP_ADD_TC(tp, open_anon);		ATF_TP_ADD_TC(tp, open_anon);
ATF_TP_ADD_TC(tp, open_anon_readonly);		ATF_TP_ADD_TC(tp, open_anon_readonly);
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