static int test_pidfd_send_signal_syscall_support(void)
{
int pidfd, ret;
const char *test_name = "pidfd_send_signal check for support";
pidfd = open("/proc/self", O_DIRECTORY | O_CLOEXEC);
if (pidfd < 0)
ksft_exit_fail_msg(
"%s test: Failed to open process file descriptor\n",
test_name);
ret = sys_pidfd_send_signal(pidfd, 0, NULL, 0);
if (ret < 0) {
/*
* pidfd_send_signal() will currently return ENOSYS when
* CONFIG_PROC_FS is not set.
*/
if (errno == ENOSYS)
ksft_exit_skip(
"%s test: pidfd_send_signal() syscall not supported (Ensure that CONFIG_PROC_FS=y is set)\n",
test_name);
ksft_exit_fail_msg("%s test: Failed to send signal\n",
test_name);
}
close(pidfd);
ksft_test_result_pass(
"%s test: pidfd_send_signal() syscall is supported. Tests can be executed\n",
test_name);
return 0;
}
int main(void)
{
int *rcv_fd, nodes;
if (numa_available() < 0)
ksft_exit_skip("no numa api support\n");
nodes = numa_max_node() + 1;
rcv_fd = calloc(nodes, sizeof(int));
if (!rcv_fd)
error(1, 0, "failed to allocate array");
fprintf(stderr, "---- IPv4 UDP ----\n");
test(rcv_fd, nodes, AF_INET, SOCK_DGRAM);
fprintf(stderr, "---- IPv6 UDP ----\n");
test(rcv_fd, nodes, AF_INET6, SOCK_DGRAM);
fprintf(stderr, "---- IPv4 TCP ----\n");
test(rcv_fd, nodes, AF_INET, SOCK_STREAM);
fprintf(stderr, "---- IPv6 TCP ----\n");
test(rcv_fd, nodes, AF_INET6, SOCK_STREAM);
free(rcv_fd);
fprintf(stderr, "SUCCESS\n");
return 0;
}
static void init_test(void)
{
struct timespec ts;
struct sample sample;
if (clock_gettime(CLOCK_MONOTONIC_RAW, &ts)) {
perror("[FAIL] clock_gettime(CLOCK_MONOTONIC_RAW)");
ksft_exit_fail();
}
mono_raw_base = ts.tv_sec;
if (clock_gettime(CLOCK_MONOTONIC, &ts)) {
perror("[FAIL] clock_gettime(CLOCK_MONOTONIC)");
ksft_exit_fail();
}
mono_base = ts.tv_sec;
user_hz = sysconf(_SC_CLK_TCK);
precision = get_sample(&sample) / 2.0;
printf("CLOCK_MONOTONIC_RAW+CLOCK_MONOTONIC precision: %.0f ns\t\t",
1e9 * precision);
if (precision > MAX_PRECISION)
ksft_exit_skip("precision: %.0f ns > MAX_PRECISION: %.0f ns\n",
1e9 * precision, 1e9 * MAX_PRECISION);
printf("[OK]\n");
srand(ts.tv_sec ^ ts.tv_nsec);
run_test(1, 0.0, 0.0);
}
void suspend(void)
{
int power_state_fd;
struct sigevent event = {};
int timerfd;
int err;
struct itimerspec spec = {};
if (getuid() != 0)
ksft_exit_skip("Please run the test as root - Exiting.\n");
power_state_fd = open("/sys/power/state", O_RDWR);
if (power_state_fd < 0)
ksft_exit_fail_msg(
"open(\"/sys/power/state\") failed %s)\n",
strerror(errno));
timerfd = timerfd_create(CLOCK_BOOTTIME_ALARM, 0);
if (timerfd < 0)
ksft_exit_fail_msg("timerfd_create() failed\n");
spec.it_value.tv_sec = 5;
err = timerfd_settime(timerfd, 0, &spec, NULL);
if (err < 0)
ksft_exit_fail_msg("timerfd_settime() failed\n");
if (write(power_state_fd, "mem", strlen("mem")) != strlen("mem"))
ksft_exit_fail_msg("Failed to enter Suspend state\n");
close(timerfd);
close(power_state_fd);
}
int main(int argc, char **argv)
{
int opt;
char media_device[256];
int count;
struct media_device_info mdi;
int ret;
int fd;
if (argc < 2) {
printf("Usage: %s [-d </dev/mediaX>]\n", argv[0]);
exit(-1);
}
/* Process arguments */
while ((opt = getopt(argc, argv, "d:")) != -1) {
switch (opt) {
case 'd':
strncpy(media_device, optarg, sizeof(media_device) - 1);
media_device[sizeof(media_device)-1] = '\0';
break;
default:
printf("Usage: %s [-d </dev/mediaX>]\n", argv[0]);
exit(-1);
}
}
if (getuid() != 0)
ksft_exit_skip("Please run the test as root - Exiting.\n");
/* Generate random number of interations */
srand((unsigned int) time(NULL));
count = rand();
/* Open Media device and keep it open */
fd = open(media_device, O_RDWR);
if (fd == -1) {
printf("Media Device open errno %s\n", strerror(errno));
exit(-1);
}
printf("\nNote:\n"
"While test is running, remove the device and\n"
"ensure there are no use after free errors and\n"
"other Oops in the dmesg. Enable KaSan kernel\n"
"config option for use-after-free error detection.\n\n");
printf("Running test for %d iterations\n", count);
while (count > 0) {
ret = ioctl(fd, MEDIA_IOC_DEVICE_INFO, &mdi);
if (ret < 0)
printf("Media Device Info errno %s\n", strerror(errno));
else
printf("Media device model %s driver %s - count %d\n",
mdi.model, mdi.driver, count);
sleep(10);
count--;
}
}
int main(int argc, char **argv)
{
switch (test_membarrier_query()) {
case TEST_MEMBARRIER_FAIL:
return ksft_exit_fail();
case TEST_MEMBARRIER_SKIP:
return ksft_exit_skip();
}
switch (test_membarrier()) {
case TEST_MEMBARRIER_FAIL:
return ksft_exit_fail();
case TEST_MEMBARRIER_SKIP:
return ksft_exit_skip();
}
printf("membarrier: tests done!\n");
return ksft_exit_pass();
}
static void __do_binderfs_test(void)
{
int fd, ret, saved_errno;
size_t len;
ssize_t wret;
bool keep = false;
struct binderfs_device device = { 0 };
struct binder_version version = { 0 };
change_to_mountns();
ret = mkdir("/dev/binderfs", 0755);
if (ret < 0) {
if (errno != EEXIST)
ksft_exit_fail_msg(
"%s - Failed to create binderfs mountpoint\n",
strerror(errno));
keep = true;
}
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));
keep ? : rmdir_protect_errno("/dev/binderfs");
ksft_exit_skip(
"The Android binderfs filesystem is not available\n");
}
/* binderfs mount test passed */
ksft_inc_pass_cnt();
memcpy(device.name, "my-binder", strlen("my-binder"));
fd = open("/dev/binderfs/binder-control", O_RDONLY | O_CLOEXEC);
if (fd < 0)
ksft_exit_fail_msg(
"%s - Failed to open binder-control device\n",
strerror(errno));
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",
strerror(errno));
}
bool run_test(int cpu)
{
int status;
pid_t pid = fork();
pid_t wpid;
if (pid < 0) {
ksft_print_msg("fork() failed: %s\n", strerror(errno));
return false;
}
if (pid == 0)
child(cpu);
wpid = waitpid(pid, &status, __WALL);
if (wpid != pid) {
ksft_print_msg("waitpid() failed: %s\n", strerror(errno));
return false;
}
if (!WIFSTOPPED(status)) {
ksft_print_msg("child did not stop: %s\n", strerror(errno));
return false;
}
if (WSTOPSIG(status) != SIGSTOP) {
ksft_print_msg("child did not stop with SIGSTOP: %s\n",
strerror(errno));
return false;
}
if (ptrace(PTRACE_SINGLESTEP, pid, NULL, NULL) < 0) {
if (errno == EIO) {
ksft_exit_skip(
"ptrace(PTRACE_SINGLESTEP) not supported on this architecture: %s\n",
strerror(errno));
}
ksft_print_msg("ptrace(PTRACE_SINGLESTEP) failed: %s\n",
strerror(errno));
return false;
}
wpid = waitpid(pid, &status, __WALL);
if (wpid != pid) {
ksft_print_msg("waitpid() failed: $s\n", strerror(errno));
return false;
}
if (WIFEXITED(status)) {
ksft_print_msg("child did not single-step: %s\n",
strerror(errno));
return false;
}
if (!WIFSTOPPED(status)) {
ksft_print_msg("child did not stop: %s\n", strerror(errno));
return false;
}
if (WSTOPSIG(status) != SIGTRAP) {
ksft_print_msg("child did not stop with SIGTRAP: %s\n",
strerror(errno));
return false;
}
if (ptrace(PTRACE_CONT, pid, NULL, NULL) < 0) {
ksft_print_msg("ptrace(PTRACE_CONT) failed: %s\n",
strerror(errno));
return false;
}
wpid = waitpid(pid, &status, __WALL);
if (wpid != pid) {
ksft_print_msg("waitpid() failed: %s\n", strerror(errno));
return false;
}
if (!WIFEXITED(status)) {
ksft_print_msg("child did not exit after PTRACE_CONT: %s\n",
strerror(errno));
return false;
}
return true;
}
