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-rw-r--r--tools/testing/selftests/filesystems/binderfs/binderfs_test.c627
1 files changed, 446 insertions, 181 deletions
diff --git a/tools/testing/selftests/filesystems/binderfs/binderfs_test.c b/tools/testing/selftests/filesystems/binderfs/binderfs_test.c
index 8c2ed962e1c7..5f362c0fd890 100644
--- a/tools/testing/selftests/filesystems/binderfs/binderfs_test.c
+++ b/tools/testing/selftests/filesystems/binderfs/binderfs_test.c
@@ -3,273 +3,538 @@
#define _GNU_SOURCE
#include <errno.h>
#include <fcntl.h>
+#include <pthread.h>
#include <sched.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
+#include <sys/fsuid.h>
#include <sys/ioctl.h>
#include <sys/mount.h>
+#include <sys/socket.h>
#include <sys/stat.h>
+#include <sys/sysinfo.h>
#include <sys/types.h>
+#include <sys/wait.h>
#include <unistd.h>
#include <linux/android/binder.h>
#include <linux/android/binderfs.h>
-#include "../../kselftest.h"
-static ssize_t write_nointr(int fd, const void *buf, size_t count)
+#include "../../kselftest_harness.h"
+
+#define DEFAULT_THREADS 4
+
+#define PTR_TO_INT(p) ((int)((intptr_t)(p)))
+#define INT_TO_PTR(u) ((void *)((intptr_t)(u)))
+
+#define close_prot_errno_disarm(fd) \
+ if (fd >= 0) { \
+ int _e_ = errno; \
+ close(fd); \
+ errno = _e_; \
+ fd = -EBADF; \
+ }
+
+static void change_mountns(struct __test_metadata *_metadata)
{
- ssize_t ret;
-again:
- ret = write(fd, buf, count);
- if (ret < 0 && errno == EINTR)
- goto again;
+ int ret;
- return ret;
+ ret = unshare(CLONE_NEWNS);
+ ASSERT_EQ(ret, 0) {
+ TH_LOG("%s - Failed to unshare mount namespace",
+ strerror(errno));
+ }
+
+ ret = mount(NULL, "/", NULL, MS_REC | MS_PRIVATE, 0);
+ ASSERT_EQ(ret, 0) {
+ TH_LOG("%s - Failed to mount / as private",
+ strerror(errno));
+ }
}
-static void write_to_file(const char *filename, const void *buf, size_t count,
- int allowed_errno)
+static int __do_binderfs_test(struct __test_metadata *_metadata)
{
- int fd, saved_errno;
- ssize_t ret;
+ int fd, ret, saved_errno, result = 1;
+ size_t len;
+ ssize_t wret;
+ struct binderfs_device device = { 0 };
+ struct binder_version version = { 0 };
+ char binderfs_mntpt[] = P_tmpdir "/binderfs_XXXXXX",
+ device_path[sizeof(P_tmpdir "/binderfs_XXXXXX/") + BINDERFS_MAX_NAME];
+ static const char * const binder_features[] = {
+ "oneway_spam_detection",
+ "extended_error",
+ };
- fd = open(filename, O_WRONLY | O_CLOEXEC);
- if (fd < 0)
- ksft_exit_fail_msg("%s - Failed to open file %s\n",
- strerror(errno), filename);
-
- ret = write_nointr(fd, buf, count);
- if (ret < 0) {
- if (allowed_errno && (errno == allowed_errno)) {
- close(fd);
- return;
- }
+ change_mountns(_metadata);
- goto on_error;
+ EXPECT_NE(mkdtemp(binderfs_mntpt), NULL) {
+ TH_LOG("%s - Failed to create binderfs mountpoint",
+ strerror(errno));
+ goto out;
}
- if ((size_t)ret != count)
- goto on_error;
+ ret = mount(NULL, binderfs_mntpt, "binder", 0, 0);
+ EXPECT_EQ(ret, 0) {
+ if (errno == ENODEV)
+ SKIP(goto out, "binderfs missing");
+ TH_LOG("%s - Failed to mount binderfs", strerror(errno));
+ goto rmdir;
+ }
+
+ /* 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);
+ 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);
- return;
+ errno = saved_errno;
+ EXPECT_GE(ret, 0) {
+ TH_LOG("%s - Failed to allocate new binder device",
+ strerror(errno));
+ goto umount;
+ }
+
+ TH_LOG("Allocated new binder device with major %d, minor %d, and name %s",
+ device.major, device.minor, device.name);
+
+ /* success: binder device allocation */
+
+ snprintf(device_path, sizeof(device_path), "%s/my-binder", binderfs_mntpt);
+ fd = open(device_path, O_CLOEXEC | O_RDONLY);
+ EXPECT_GE(fd, 0) {
+ TH_LOG("%s - Failed to open my-binder device",
+ strerror(errno));
+ goto umount;
+ }
-on_error:
+ ret = ioctl(fd, BINDER_VERSION, &version);
saved_errno = errno;
close(fd);
errno = saved_errno;
+ EXPECT_GE(ret, 0) {
+ TH_LOG("%s - Failed to open perform BINDER_VERSION request",
+ strerror(errno));
+ goto umount;
+ }
- if (ret < 0)
- ksft_exit_fail_msg("%s - Failed to write to file %s\n",
- strerror(errno), filename);
+ TH_LOG("Detected binder version: %d", version.protocol_version);
- ksft_exit_fail_msg("Failed to write to file %s\n", filename);
-}
+ /* success: binder transaction with binderfs binder device */
-static void change_to_userns(void)
-{
- int ret;
- uid_t uid;
- gid_t gid;
- /* {g,u}id_map files only allow a max of 4096 bytes written to them */
- char idmap[4096];
+ ret = unlink(device_path);
+ EXPECT_EQ(ret, 0) {
+ TH_LOG("%s - Failed to delete binder device",
+ strerror(errno));
+ goto umount;
+ }
- uid = getuid();
- gid = getgid();
+ /* success: binder device removal */
- ret = unshare(CLONE_NEWUSER);
- if (ret < 0)
- ksft_exit_fail_msg("%s - Failed to unshare user namespace\n",
- strerror(errno));
+ snprintf(device_path, sizeof(device_path), "%s/binder-control", binderfs_mntpt);
+ ret = unlink(device_path);
+ 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;
+ }
- write_to_file("/proc/self/setgroups", "deny", strlen("deny"), ENOENT);
+ /* success: binder-control device removal failed as expected */
- ret = snprintf(idmap, sizeof(idmap), "0 %d 1", uid);
- if (ret < 0 || (size_t)ret >= sizeof(idmap))
- ksft_exit_fail_msg("%s - Failed to prepare uid mapping\n",
- strerror(errno));
+ for (int i = 0; i < ARRAY_SIZE(binder_features); i++) {
+ snprintf(device_path, sizeof(device_path), "%s/features/%s",
+ binderfs_mntpt, binder_features[i]);
+ fd = open(device_path, O_CLOEXEC | O_RDONLY);
+ EXPECT_GE(fd, 0) {
+ TH_LOG("%s - Failed to open binder feature: %s",
+ strerror(errno), binder_features[i]);
+ goto umount;
+ }
+ close(fd);
+ }
- write_to_file("/proc/self/uid_map", idmap, strlen(idmap), 0);
+ /* success: binder feature files found */
+ result = 0;
- ret = snprintf(idmap, sizeof(idmap), "0 %d 1", gid);
- if (ret < 0 || (size_t)ret >= sizeof(idmap))
- ksft_exit_fail_msg("%s - Failed to prepare uid mapping\n",
- strerror(errno));
+umount:
+ ret = umount2(binderfs_mntpt, MNT_DETACH);
+ 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;
+}
- write_to_file("/proc/self/gid_map", idmap, strlen(idmap), 0);
+static int wait_for_pid(pid_t pid)
+{
+ int status, ret;
- ret = setgid(0);
- if (ret)
- ksft_exit_fail_msg("%s - Failed to setgid(0)\n",
- strerror(errno));
+again:
+ ret = waitpid(pid, &status, 0);
+ if (ret == -1) {
+ if (errno == EINTR)
+ goto again;
- ret = setuid(0);
- if (ret)
- ksft_exit_fail_msg("%s - Failed to setgid(0)\n",
- strerror(errno));
+ return -1;
+ }
+
+ if (!WIFEXITED(status))
+ return -1;
+
+ return WEXITSTATUS(status);
}
-static void change_to_mountns(void)
+static int setid_userns_root(void)
{
- int ret;
+ if (setuid(0))
+ return -1;
+ if (setgid(0))
+ return -1;
- ret = unshare(CLONE_NEWNS);
- if (ret < 0)
- ksft_exit_fail_msg("%s - Failed to unshare mount namespace\n",
- strerror(errno));
+ setfsuid(0);
+ setfsgid(0);
- 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));
+ return 0;
}
-static void rmdir_protect_errno(const char *dir)
+enum idmap_type {
+ UID_MAP,
+ GID_MAP,
+};
+
+static ssize_t read_nointr(int fd, void *buf, size_t count)
{
- int saved_errno = errno;
- (void)rmdir(dir);
- errno = saved_errno;
+ ssize_t ret;
+again:
+ ret = read(fd, buf, count);
+ if (ret < 0 && errno == EINTR)
+ goto again;
+
+ return ret;
}
-static void __do_binderfs_test(void)
+static ssize_t write_nointr(int fd, const void *buf, size_t count)
{
- int fd, ret, saved_errno;
- size_t len;
- ssize_t wret;
- bool keep = false;
- struct binderfs_device device = { 0 };
- struct binder_version version = { 0 };
+ ssize_t ret;
+again:
+ ret = write(fd, buf, count);
+ if (ret < 0 && errno == EINTR)
+ goto again;
- change_to_mountns();
+ return ret;
+}
- ret = mkdir("/dev/binderfs", 0755);
- if (ret < 0) {
- if (errno != EEXIST)
- ksft_exit_fail_msg(
- "%s - Failed to create binderfs mountpoint\n",
- strerror(errno));
+static int write_id_mapping(enum idmap_type type, pid_t pid, const char *buf,
+ size_t buf_size)
+{
+ int fd;
+ int ret;
+ char path[4096];
- keep = true;
- }
+ if (type == GID_MAP) {
+ int setgroups_fd;
- ret = mount(NULL, "/dev/binderfs", "binder", 0, 0);
- if (ret < 0) {
- if (errno != ENODEV)
- ksft_exit_fail_msg("%s - Failed to mount binderfs\n",
- strerror(errno));
+ snprintf(path, sizeof(path), "/proc/%d/setgroups", pid);
+ setgroups_fd = open(path, O_WRONLY | O_CLOEXEC | O_NOFOLLOW);
+ if (setgroups_fd < 0 && errno != ENOENT)
+ return -1;
- keep ? : rmdir_protect_errno("/dev/binderfs");
- ksft_exit_skip(
- "The Android binderfs filesystem is not available\n");
+ if (setgroups_fd >= 0) {
+ ret = write_nointr(setgroups_fd, "deny", sizeof("deny") - 1);
+ close_prot_errno_disarm(setgroups_fd);
+ if (ret != sizeof("deny") - 1)
+ return -1;
+ }
}
- /* binderfs mount test passed */
- ksft_inc_pass_cnt();
-
- memcpy(device.name, "my-binder", strlen("my-binder"));
+ switch (type) {
+ case UID_MAP:
+ ret = snprintf(path, sizeof(path), "/proc/%d/uid_map", pid);
+ break;
+ case GID_MAP:
+ ret = snprintf(path, sizeof(path), "/proc/%d/gid_map", pid);
+ break;
+ default:
+ return -1;
+ }
+ if (ret < 0 || ret >= sizeof(path))
+ return -E2BIG;
- fd = open("/dev/binderfs/binder-control", O_RDONLY | O_CLOEXEC);
+ fd = open(path, O_WRONLY | O_CLOEXEC | O_NOFOLLOW);
if (fd < 0)
- ksft_exit_fail_msg(
- "%s - Failed to open binder-control device\n",
- strerror(errno));
+ return -1;
- ret = ioctl(fd, BINDER_CTL_ADD, &device);
- saved_errno = errno;
- close(fd);
- errno = saved_errno;
- if (ret < 0) {
- keep ? : rmdir_protect_errno("/dev/binderfs");
- ksft_exit_fail_msg(
- "%s - Failed to allocate new binder device\n",
+ ret = write_nointr(fd, buf, buf_size);
+ close_prot_errno_disarm(fd);
+ if (ret != buf_size)
+ return -1;
+
+ return 0;
+}
+
+static void change_userns(struct __test_metadata *_metadata, int syncfds[2])
+{
+ int ret;
+ char buf;
+
+ close_prot_errno_disarm(syncfds[1]);
+
+ ret = unshare(CLONE_NEWUSER);
+ ASSERT_EQ(ret, 0) {
+ TH_LOG("%s - Failed to unshare user namespace",
strerror(errno));
}
- ksft_print_msg(
- "Allocated new binder device with major %d, minor %d, and name %s\n",
- device.major, device.minor, device.name);
-
- /* binder device allocation test passed */
- ksft_inc_pass_cnt();
+ ret = write_nointr(syncfds[0], "1", 1);
+ ASSERT_EQ(ret, 1) {
+ TH_LOG("write_nointr() failed");
+ }
- fd = open("/dev/binderfs/my-binder", O_CLOEXEC | O_RDONLY);
- if (fd < 0) {
- keep ? : rmdir_protect_errno("/dev/binderfs");
- ksft_exit_fail_msg("%s - Failed to open my-binder device\n",
- strerror(errno));
+ ret = read_nointr(syncfds[0], &buf, 1);
+ ASSERT_EQ(ret, 1) {
+ TH_LOG("read_nointr() failed");
}
- ret = ioctl(fd, BINDER_VERSION, &version);
- saved_errno = errno;
- close(fd);
- errno = saved_errno;
- if (ret < 0) {
- keep ? : rmdir_protect_errno("/dev/binderfs");
- ksft_exit_fail_msg(
- "%s - Failed to open perform BINDER_VERSION request\n",
- strerror(errno));
+ close_prot_errno_disarm(syncfds[0]);
+
+ ASSERT_EQ(setid_userns_root(), 0) {
+ TH_LOG("setid_userns_root() failed");
}
+}
- ksft_print_msg("Detected binder version: %d\n",
- version.protocol_version);
+static void change_idmaps(struct __test_metadata *_metadata, int syncfds[2], pid_t pid)
+{
+ int ret;
+ char buf;
+ char id_map[4096];
- /* binder transaction with binderfs binder device passed */
- ksft_inc_pass_cnt();
+ close_prot_errno_disarm(syncfds[0]);
- ret = unlink("/dev/binderfs/my-binder");
- if (ret < 0) {
- keep ? : rmdir_protect_errno("/dev/binderfs");
- ksft_exit_fail_msg("%s - Failed to delete binder device\n",
- strerror(errno));
+ ret = read_nointr(syncfds[1], &buf, 1);
+ ASSERT_EQ(ret, 1) {
+ TH_LOG("read_nointr() failed");
}
- /* binder device removal passed */
- ksft_inc_pass_cnt();
+ snprintf(id_map, sizeof(id_map), "0 %d 1\n", getuid());
+ ret = write_id_mapping(UID_MAP, pid, id_map, strlen(id_map));
+ ASSERT_EQ(ret, 0) {
+ TH_LOG("write_id_mapping(UID_MAP) failed");
+ }
- ret = unlink("/dev/binderfs/binder-control");
- if (!ret) {
- keep ? : rmdir_protect_errno("/dev/binderfs");
- ksft_exit_fail_msg("Managed to delete binder-control device\n");
- } else if (errno != EPERM) {
- keep ? : rmdir_protect_errno("/dev/binderfs");
- ksft_exit_fail_msg(
- "%s - Failed to delete binder-control device but exited with unexpected error code\n",
- strerror(errno));
+ snprintf(id_map, sizeof(id_map), "0 %d 1\n", getgid());
+ ret = write_id_mapping(GID_MAP, pid, id_map, strlen(id_map));
+ ASSERT_EQ(ret, 0) {
+ TH_LOG("write_id_mapping(GID_MAP) failed");
}
- /* binder-control device removal failed as expected */
- ksft_inc_xfail_cnt();
+ ret = write_nointr(syncfds[1], "1", 1);
+ ASSERT_EQ(ret, 1) {
+ TH_LOG("write_nointr() failed");
+ }
+
+ close_prot_errno_disarm(syncfds[1]);
+}
-on_error:
- ret = umount2("/dev/binderfs", MNT_DETACH);
- keep ?: rmdir_protect_errno("/dev/binderfs");
+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_exit_fail_msg("%s - Failed to unmount binderfs\n",
- strerror(errno));
+ TH_LOG("%s - Failed to open perform BINDER_VERSION request\n",
+ strerror(errno));
- /* binderfs unmount test passed */
- ksft_inc_pass_cnt();
+ pthread_exit(data);
}
-static void binderfs_test_privileged()
+/*
+ * Regression test:
+ * 2669b8b0c798 ("binder: prevent UAF for binderfs devices")
+ * f0fe2c0f050d ("binder: prevent UAF for binderfs devices II")
+ * 211b64e4b5b6 ("binderfs: use refcount for binder control devices too")
+ */
+TEST(binderfs_stress)
{
- if (geteuid() != 0)
- ksft_print_msg(
- "Tests are not run as root. Skipping privileged tests\n");
- else
- __do_binderfs_test();
+ int fds[1000];
+ int syncfds[2];
+ pid_t pid;
+ int fd, ret;
+ size_t len;
+ struct binderfs_device device = { 0 };
+ char binderfs_mntpt[] = P_tmpdir "/binderfs_XXXXXX",
+ device_path[sizeof(P_tmpdir "/binderfs_XXXXXX/") + BINDERFS_MAX_NAME];
+
+ ret = socketpair(PF_LOCAL, SOCK_STREAM | SOCK_CLOEXEC, 0, syncfds);
+ ASSERT_EQ(ret, 0) {
+ TH_LOG("%s - Failed to create socket pair", strerror(errno));
+ }
+
+ pid = fork();
+ ASSERT_GE(pid, 0) {
+ TH_LOG("%s - Failed to fork", strerror(errno));
+ close_prot_errno_disarm(syncfds[0]);
+ close_prot_errno_disarm(syncfds[1]);
+ }
+
+ if (pid == 0) {
+ int i, j, k, nthreads;
+ pthread_attr_t attr;
+ pthread_t threads[DEFAULT_THREADS];
+ change_userns(_metadata, syncfds);
+ change_mountns(_metadata);
+
+ ASSERT_NE(mkdtemp(binderfs_mntpt), NULL) {
+ TH_LOG("%s - Failed to create binderfs mountpoint",
+ strerror(errno));
+ }
+
+ ret = mount(NULL, binderfs_mntpt, "binder", 0, 0);
+ ASSERT_EQ(ret, 0) {
+ TH_LOG("%s - Failed to mount binderfs, check if CONFIG_ANDROID_BINDERFS is enabled in the running kernel",
+ 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);
+ 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);
+ 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);
+ ASSERT_GE(fds[i], 0) {
+ TH_LOG("%s - Failed to open binder device", strerror(errno));
+ }
+ }
+
+ ret = umount2(binderfs_mntpt, MNT_DETACH);
+ 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) {
+ TH_LOG("%s - Failed to create thread %d",
+ strerror(errno), i);
+ break;
+ }
+ }
+
+ for (j = 0; j < i; j++) {
+ void *fdptr = NULL;
+
+ ret = pthread_join(threads[j], &fdptr);
+ if (ret)
+ TH_LOG("%s - Failed to join thread %d for fd %d",
+ strerror(errno), j, PTR_TO_INT(fdptr));
+ }
+ }
+ pthread_attr_destroy(&attr);
+
+ for (k = 0; k < ARRAY_SIZE(fds); k++)
+ close(fds[k]);
+
+ exit(EXIT_SUCCESS);
+ }
+
+ change_idmaps(_metadata, syncfds, pid);
+
+ ret = wait_for_pid(pid);
+ ASSERT_EQ(ret, 0) {
+ TH_LOG("wait_for_pid() failed");
+ }
}
-static void binderfs_test_unprivileged()
+TEST(binderfs_test_privileged)
{
- change_to_userns();
- __do_binderfs_test();
+ if (geteuid() != 0)
+ SKIP(return, "Tests are not run as root. Skipping privileged tests");
+
+ if (__do_binderfs_test(_metadata))
+ SKIP(return, "The Android binderfs filesystem is not available");
}
-int main(int argc, char *argv[])
+TEST(binderfs_test_unprivileged)
{
- binderfs_test_privileged();
- binderfs_test_unprivileged();
- ksft_exit_pass();
+ int ret;
+ int syncfds[2];
+ pid_t pid;
+
+ ret = socketpair(PF_LOCAL, SOCK_STREAM | SOCK_CLOEXEC, 0, syncfds);
+ ASSERT_EQ(ret, 0) {
+ TH_LOG("%s - Failed to create socket pair", strerror(errno));
+ }
+
+ pid = fork();
+ ASSERT_GE(pid, 0) {
+ close_prot_errno_disarm(syncfds[0]);
+ close_prot_errno_disarm(syncfds[1]);
+ TH_LOG("%s - Failed to fork", strerror(errno));
+ }
+
+ if (pid == 0) {
+ change_userns(_metadata, syncfds);
+ if (__do_binderfs_test(_metadata))
+ exit(2);
+ exit(EXIT_SUCCESS);
+ }
+
+ change_idmaps(_metadata, syncfds, pid);
+
+ ret = wait_for_pid(pid);
+ if (ret) {
+ if (ret == 2)
+ SKIP(return, "The Android binderfs filesystem is not available");
+ ASSERT_EQ(ret, 0) {
+ TH_LOG("wait_for_pid() failed");
+ }
+ }
}
+
+TEST_HARNESS_MAIN
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