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-rw-r--r--tools/testing/selftests/filesystems/binderfs/binderfs_test.c284
1 files changed, 146 insertions, 138 deletions
diff --git a/tools/testing/selftests/filesystems/binderfs/binderfs_test.c b/tools/testing/selftests/filesystems/binderfs/binderfs_test.c
index 8a6b507e34a8..1d27f52c61e6 100644
--- a/tools/testing/selftests/filesystems/binderfs/binderfs_test.c
+++ b/tools/testing/selftests/filesystems/binderfs/binderfs_test.c
@@ -21,7 +21,6 @@
#include <linux/android/binder.h>
#include <linux/android/binderfs.h>
-#include "../../kselftest.h"
#include "../../kselftest_harness.h"
#define DEFAULT_THREADS 4
@@ -37,37 +36,26 @@
fd = -EBADF; \
}
-#define log_exit(format, ...) \
- ({ \
- fprintf(stderr, format "\n", ##__VA_ARGS__); \
- exit(EXIT_FAILURE); \
- })
-
-static void change_mountns(void)
+static void change_mountns(struct __test_metadata *_metadata)
{
int ret;
ret = unshare(CLONE_NEWNS);
- if (ret < 0)
- ksft_exit_fail_msg("%s - Failed to unshare mount namespace\n",
- strerror(errno));
+ ASSERT_EQ(ret, 0) {
+ TH_LOG("%s - Failed to unshare mount namespace",
+ strerror(errno));
+ }
ret = mount(NULL, "/", NULL, MS_REC | MS_PRIVATE, 0);
- if (ret < 0)
- ksft_exit_fail_msg("%s - Failed to mount / as private\n",
- strerror(errno));
-}
-
-static void rmdir_protect_errno(const char *dir)
-{
- int saved_errno = errno;
- (void)rmdir(dir);
- errno = saved_errno;
+ ASSERT_EQ(ret, 0) {
+ TH_LOG("%s - Failed to mount / as private",
+ strerror(errno));
+ }
}
-static int __do_binderfs_test(void)
+static int __do_binderfs_test(struct __test_metadata *_metadata)
{
- int fd, ret, saved_errno;
+ int fd, ret, saved_errno, result = 1;
size_t len;
ssize_t wret;
struct binderfs_device device = { 0 };
@@ -75,113 +63,107 @@ static int __do_binderfs_test(void)
char binderfs_mntpt[] = P_tmpdir "/binderfs_XXXXXX",
device_path[sizeof(P_tmpdir "/binderfs_XXXXXX/") + BINDERFS_MAX_NAME];
- change_mountns();
+ change_mountns(_metadata);
- if (!mkdtemp(binderfs_mntpt))
- ksft_exit_fail_msg(
- "%s - Failed to create binderfs mountpoint\n",
+ EXPECT_NE(mkdtemp(binderfs_mntpt), NULL) {
+ TH_LOG("%s - Failed to create binderfs mountpoint",
strerror(errno));
+ goto out;
+ }
ret = mount(NULL, binderfs_mntpt, "binder", 0, 0);
- if (ret < 0) {
- if (errno != ENODEV)
- ksft_exit_fail_msg("%s - Failed to mount binderfs\n",
- strerror(errno));
-
- rmdir_protect_errno(binderfs_mntpt);
- return 1;
+ EXPECT_EQ(ret, 0) {
+ if (errno == ENODEV)
+ XFAIL(goto out, "binderfs missing");
+ TH_LOG("%s - Failed to mount binderfs", strerror(errno));
+ goto rmdir;
}
- /* binderfs mount test passed */
- ksft_inc_pass_cnt();
+ /* success: binderfs mounted */
memcpy(device.name, "my-binder", strlen("my-binder"));
snprintf(device_path, sizeof(device_path), "%s/binder-control", binderfs_mntpt);
fd = open(device_path, O_RDONLY | O_CLOEXEC);
- if (fd < 0)
- ksft_exit_fail_msg(
- "%s - Failed to open binder-control device\n",
+ EXPECT_GE(fd, 0) {
+ TH_LOG("%s - Failed to open binder-control device",
strerror(errno));
+ goto umount;
+ }
ret = ioctl(fd, BINDER_CTL_ADD, &device);
saved_errno = errno;
close(fd);
errno = saved_errno;
- if (ret < 0) {
- rmdir_protect_errno(binderfs_mntpt);
- ksft_exit_fail_msg(
- "%s - Failed to allocate new binder device\n",
+ EXPECT_GE(ret, 0) {
+ TH_LOG("%s - Failed to allocate new binder device",
strerror(errno));
+ goto umount;
}
- ksft_print_msg(
- "Allocated new binder device with major %d, minor %d, and name %s\n",
+ TH_LOG("Allocated new binder device with major %d, minor %d, and name %s",
device.major, device.minor, device.name);
- /* binder device allocation test passed */
- ksft_inc_pass_cnt();
+ /* success: binder device allocation */
snprintf(device_path, sizeof(device_path), "%s/my-binder", binderfs_mntpt);
fd = open(device_path, O_CLOEXEC | O_RDONLY);
- if (fd < 0) {
- rmdir_protect_errno(binderfs_mntpt);
- ksft_exit_fail_msg("%s - Failed to open my-binder device\n",
- strerror(errno));
+ EXPECT_GE(fd, 0) {
+ TH_LOG("%s - Failed to open my-binder device",
+ strerror(errno));
+ goto umount;
}
ret = ioctl(fd, BINDER_VERSION, &version);
saved_errno = errno;
close(fd);
errno = saved_errno;
- if (ret < 0) {
- rmdir_protect_errno(binderfs_mntpt);
- ksft_exit_fail_msg(
- "%s - Failed to open perform BINDER_VERSION request\n",
+ EXPECT_GE(ret, 0) {
+ TH_LOG("%s - Failed to open perform BINDER_VERSION request",
strerror(errno));
+ goto umount;
}
- ksft_print_msg("Detected binder version: %d\n",
- version.protocol_version);
+ TH_LOG("Detected binder version: %d", version.protocol_version);
- /* binder transaction with binderfs binder device passed */
- ksft_inc_pass_cnt();
+ /* success: binder transaction with binderfs binder device */
ret = unlink(device_path);
- if (ret < 0) {
- rmdir_protect_errno(binderfs_mntpt);
- ksft_exit_fail_msg("%s - Failed to delete binder device\n",
- strerror(errno));
+ EXPECT_EQ(ret, 0) {
+ TH_LOG("%s - Failed to delete binder device",
+ strerror(errno));
+ goto umount;
}
- /* binder device removal passed */
- ksft_inc_pass_cnt();
+ /* success: binder device removal */
snprintf(device_path, sizeof(device_path), "%s/binder-control", binderfs_mntpt);
ret = unlink(device_path);
- if (!ret) {
- rmdir_protect_errno(binderfs_mntpt);
- ksft_exit_fail_msg("Managed to delete binder-control device\n");
- } else if (errno != EPERM) {
- rmdir_protect_errno(binderfs_mntpt);
- ksft_exit_fail_msg(
- "%s - Failed to delete binder-control device but exited with unexpected error code\n",
+ EXPECT_NE(ret, 0) {
+ TH_LOG("Managed to delete binder-control device");
+ goto umount;
+ }
+ EXPECT_EQ(errno, EPERM) {
+ TH_LOG("%s - Failed to delete binder-control device but exited with unexpected error code",
strerror(errno));
+ goto umount;
}
- /* binder-control device removal failed as expected */
- ksft_inc_xfail_cnt();
+ /* success: binder-control device removal failed as expected */
+ result = 0;
-on_error:
+umount:
ret = umount2(binderfs_mntpt, MNT_DETACH);
- rmdir_protect_errno(binderfs_mntpt);
- if (ret < 0)
- ksft_exit_fail_msg("%s - Failed to unmount binderfs\n",
- strerror(errno));
-
- /* binderfs unmount test passed */
- ksft_inc_pass_cnt();
- return 0;
+ EXPECT_EQ(ret, 0) {
+ TH_LOG("%s - Failed to unmount binderfs", strerror(errno));
+ }
+rmdir:
+ ret = rmdir(binderfs_mntpt);
+ EXPECT_EQ(ret, 0) {
+ TH_LOG("%s - Failed to rmdir binderfs mount", strerror(errno));
+ }
+out:
+ return result;
}
static int wait_for_pid(pid_t pid)
@@ -291,7 +273,7 @@ static int write_id_mapping(enum idmap_type type, pid_t pid, const char *buf,
return 0;
}
-static void change_userns(int syncfds[2])
+static void change_userns(struct __test_metadata *_metadata, int syncfds[2])
{
int ret;
char buf;
@@ -299,25 +281,29 @@ static void change_userns(int syncfds[2])
close_prot_errno_disarm(syncfds[1]);
ret = unshare(CLONE_NEWUSER);
- if (ret < 0)
- ksft_exit_fail_msg("%s - Failed to unshare user namespace\n",
- strerror(errno));
+ ASSERT_EQ(ret, 0) {
+ TH_LOG("%s - Failed to unshare user namespace",
+ strerror(errno));
+ }
ret = write_nointr(syncfds[0], "1", 1);
- if (ret != 1)
- ksft_exit_fail_msg("write_nointr() failed\n");
+ ASSERT_EQ(ret, 1) {
+ TH_LOG("write_nointr() failed");
+ }
ret = read_nointr(syncfds[0], &buf, 1);
- if (ret != 1)
- ksft_exit_fail_msg("read_nointr() failed\n");
+ ASSERT_EQ(ret, 1) {
+ TH_LOG("read_nointr() failed");
+ }
close_prot_errno_disarm(syncfds[0]);
- if (setid_userns_root())
- ksft_exit_fail_msg("setid_userns_root() failed");
+ ASSERT_EQ(setid_userns_root(), 0) {
+ TH_LOG("setid_userns_root() failed");
+ }
}
-static void change_idmaps(int syncfds[2], pid_t pid)
+static void change_idmaps(struct __test_metadata *_metadata, int syncfds[2], pid_t pid)
{
int ret;
char buf;
@@ -326,35 +312,42 @@ static void change_idmaps(int syncfds[2], pid_t pid)
close_prot_errno_disarm(syncfds[0]);
ret = read_nointr(syncfds[1], &buf, 1);
- if (ret != 1)
- ksft_exit_fail_msg("read_nointr() failed\n");
+ ASSERT_EQ(ret, 1) {
+ TH_LOG("read_nointr() failed");
+ }
snprintf(id_map, sizeof(id_map), "0 %d 1\n", getuid());
ret = write_id_mapping(UID_MAP, pid, id_map, strlen(id_map));
- if (ret)
- ksft_exit_fail_msg("write_id_mapping(UID_MAP) failed");
+ ASSERT_EQ(ret, 0) {
+ TH_LOG("write_id_mapping(UID_MAP) failed");
+ }
snprintf(id_map, sizeof(id_map), "0 %d 1\n", getgid());
ret = write_id_mapping(GID_MAP, pid, id_map, strlen(id_map));
- if (ret)
- ksft_exit_fail_msg("write_id_mapping(GID_MAP) failed");
+ ASSERT_EQ(ret, 0) {
+ TH_LOG("write_id_mapping(GID_MAP) failed");
+ }
ret = write_nointr(syncfds[1], "1", 1);
- if (ret != 1)
- ksft_exit_fail_msg("write_nointr() failed");
+ ASSERT_EQ(ret, 1) {
+ TH_LOG("write_nointr() failed");
+ }
close_prot_errno_disarm(syncfds[1]);
}
+struct __test_metadata *_thread_metadata;
static void *binder_version_thread(void *data)
{
+ struct __test_metadata *_metadata = _thread_metadata;
int fd = PTR_TO_INT(data);
struct binder_version version = { 0 };
int ret;
ret = ioctl(fd, BINDER_VERSION, &version);
if (ret < 0)
- ksft_print_msg("%s - Failed to open perform BINDER_VERSION request\n", strerror(errno));
+ TH_LOG("%s - Failed to open perform BINDER_VERSION request\n",
+ strerror(errno));
pthread_exit(data);
}
@@ -377,68 +370,79 @@ TEST(binderfs_stress)
device_path[sizeof(P_tmpdir "/binderfs_XXXXXX/") + BINDERFS_MAX_NAME];
ret = socketpair(PF_LOCAL, SOCK_STREAM | SOCK_CLOEXEC, 0, syncfds);
- if (ret < 0)
- ksft_exit_fail_msg("%s - Failed to create socket pair", strerror(errno));
+ ASSERT_EQ(ret, 0) {
+ TH_LOG("%s - Failed to create socket pair", strerror(errno));
+ }
pid = fork();
- if (pid < 0) {
+ ASSERT_GE(pid, 0) {
+ TH_LOG("%s - Failed to fork", strerror(errno));
close_prot_errno_disarm(syncfds[0]);
close_prot_errno_disarm(syncfds[1]);
- ksft_exit_fail_msg("%s - Failed to fork", strerror(errno));
}
if (pid == 0) {
int i, j, k, nthreads;
pthread_attr_t attr;
pthread_t threads[DEFAULT_THREADS];
- change_userns(syncfds);
- change_mountns();
+ change_userns(_metadata, syncfds);
+ change_mountns(_metadata);
- if (!mkdtemp(binderfs_mntpt))
- log_exit("%s - Failed to create binderfs mountpoint\n",
- strerror(errno));
+ ASSERT_NE(mkdtemp(binderfs_mntpt), NULL) {
+ TH_LOG("%s - Failed to create binderfs mountpoint",
+ strerror(errno));
+ }
ret = mount(NULL, binderfs_mntpt, "binder", 0, 0);
- if (ret < 0)
- log_exit("%s - Failed to mount binderfs\n", strerror(errno));
+ ASSERT_EQ(ret, 0) {
+ TH_LOG("%s - Failed to mount binderfs", strerror(errno));
+ }
for (int i = 0; i < ARRAY_SIZE(fds); i++) {
snprintf(device_path, sizeof(device_path),
"%s/binder-control", binderfs_mntpt);
fd = open(device_path, O_RDONLY | O_CLOEXEC);
- if (fd < 0)
- log_exit("%s - Failed to open binder-control device\n", strerror(errno));
+ ASSERT_GE(fd, 0) {
+ TH_LOG("%s - Failed to open binder-control device",
+ strerror(errno));
+ }
memset(&device, 0, sizeof(device));
snprintf(device.name, sizeof(device.name), "%d", i);
ret = ioctl(fd, BINDER_CTL_ADD, &device);
close_prot_errno_disarm(fd);
- if (ret < 0)
- log_exit("%s - Failed to allocate new binder device\n", strerror(errno));
+ ASSERT_EQ(ret, 0) {
+ TH_LOG("%s - Failed to allocate new binder device",
+ strerror(errno));
+ }
snprintf(device_path, sizeof(device_path), "%s/%d",
binderfs_mntpt, i);
fds[i] = open(device_path, O_RDONLY | O_CLOEXEC);
- if (fds[i] < 0)
- log_exit("%s - Failed to open binder device\n", strerror(errno));
+ ASSERT_GE(fds[i], 0) {
+ TH_LOG("%s - Failed to open binder device", strerror(errno));
+ }
}
ret = umount2(binderfs_mntpt, MNT_DETACH);
- rmdir_protect_errno(binderfs_mntpt);
- if (ret < 0)
- log_exit("%s - Failed to unmount binderfs\n", strerror(errno));
+ ASSERT_EQ(ret, 0) {
+ TH_LOG("%s - Failed to unmount binderfs", strerror(errno));
+ rmdir(binderfs_mntpt);
+ }
nthreads = get_nprocs_conf();
if (nthreads > DEFAULT_THREADS)
nthreads = DEFAULT_THREADS;
+ _thread_metadata = _metadata;
pthread_attr_init(&attr);
for (k = 0; k < ARRAY_SIZE(fds); k++) {
for (i = 0; i < nthreads; i++) {
ret = pthread_create(&threads[i], &attr, binder_version_thread, INT_TO_PTR(fds[k]));
if (ret) {
- ksft_print_msg("%s - Failed to create thread %d\n", strerror(errno), i);
+ TH_LOG("%s - Failed to create thread %d",
+ strerror(errno), i);
break;
}
}
@@ -448,7 +452,8 @@ TEST(binderfs_stress)
ret = pthread_join(threads[j], &fdptr);
if (ret)
- ksft_print_msg("%s - Failed to join thread %d for fd %d\n", strerror(errno), j, PTR_TO_INT(fdptr));
+ TH_LOG("%s - Failed to join thread %d for fd %d",
+ strerror(errno), j, PTR_TO_INT(fdptr));
}
}
pthread_attr_destroy(&attr);
@@ -459,11 +464,12 @@ TEST(binderfs_stress)
exit(EXIT_SUCCESS);
}
- change_idmaps(syncfds, pid);
+ change_idmaps(_metadata, syncfds, pid);
ret = wait_for_pid(pid);
- if (ret)
- ksft_exit_fail_msg("wait_for_pid() failed");
+ ASSERT_EQ(ret, 0) {
+ TH_LOG("wait_for_pid() failed");
+ }
}
TEST(binderfs_test_privileged)
@@ -471,7 +477,7 @@ TEST(binderfs_test_privileged)
if (geteuid() != 0)
XFAIL(return, "Tests are not run as root. Skipping privileged tests");
- if (__do_binderfs_test() == 1)
+ if (__do_binderfs_test(_metadata))
XFAIL(return, "The Android binderfs filesystem is not available");
}
@@ -482,31 +488,33 @@ TEST(binderfs_test_unprivileged)
pid_t pid;
ret = socketpair(PF_LOCAL, SOCK_STREAM | SOCK_CLOEXEC, 0, syncfds);
- if (ret < 0)
- ksft_exit_fail_msg("%s - Failed to create socket pair", strerror(errno));
+ ASSERT_EQ(ret, 0) {
+ TH_LOG("%s - Failed to create socket pair", strerror(errno));
+ }
pid = fork();
- if (pid < 0) {
+ ASSERT_GE(pid, 0) {
close_prot_errno_disarm(syncfds[0]);
close_prot_errno_disarm(syncfds[1]);
- ksft_exit_fail_msg("%s - Failed to fork", strerror(errno));
+ TH_LOG("%s - Failed to fork", strerror(errno));
}
if (pid == 0) {
- change_userns(syncfds);
- if (__do_binderfs_test() == 1)
+ change_userns(_metadata, syncfds);
+ if (__do_binderfs_test(_metadata))
exit(2);
exit(EXIT_SUCCESS);
}
- change_idmaps(syncfds, pid);
+ change_idmaps(_metadata, syncfds, pid);
ret = wait_for_pid(pid);
if (ret) {
if (ret == 2)
XFAIL(return, "The Android binderfs filesystem is not available");
- else
- ksft_exit_fail_msg("wait_for_pid() failed");
+ ASSERT_EQ(ret, 0) {
+ TH_LOG("wait_for_pid() failed");
+ }
}
}
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