diff options
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/testing/selftests/bpf/test_progs.c | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/test_progs.c b/tools/testing/selftests/bpf/test_progs.c index c52bd90fbb34..c59d2e015d16 100644 --- a/tools/testing/selftests/bpf/test_progs.c +++ b/tools/testing/selftests/bpf/test_progs.c @@ -12,6 +12,7 @@ #include <stdlib.h> #include <stdarg.h> #include <time.h> +#include <signal.h> #include <linux/types.h> typedef __u16 __sum16; @@ -28,6 +29,7 @@ typedef __u16 __sum16; #include <sys/ioctl.h> #include <sys/wait.h> #include <sys/types.h> +#include <sys/time.h> #include <fcntl.h> #include <pthread.h> #include <linux/bpf.h> @@ -2108,6 +2110,46 @@ close_prog_noerr: bpf_object__close(obj); } +static void sigalrm_handler(int s) {} +static struct sigaction sigalrm_action = { + .sa_handler = sigalrm_handler, +}; + +static void test_signal_pending(enum bpf_prog_type prog_type) +{ + struct bpf_insn prog[4096]; + struct itimerval timeo = { + .it_value.tv_usec = 100000, /* 100ms */ + }; + __u32 duration, retval; + int prog_fd; + int err; + int i; + + for (i = 0; i < ARRAY_SIZE(prog); i++) + prog[i] = BPF_ALU64_IMM(BPF_MOV, BPF_REG_0, 0); + prog[ARRAY_SIZE(prog) - 1] = BPF_EXIT_INSN(); + + prog_fd = bpf_load_program(prog_type, prog, ARRAY_SIZE(prog), + "GPL", 0, NULL, 0); + CHECK(prog_fd < 0, "test-run", "errno %d\n", errno); + + err = sigaction(SIGALRM, &sigalrm_action, NULL); + CHECK(err, "test-run-signal-sigaction", "errno %d\n", errno); + + err = setitimer(ITIMER_REAL, &timeo, NULL); + CHECK(err, "test-run-signal-timer", "errno %d\n", errno); + + err = bpf_prog_test_run(prog_fd, 0xffffffff, &pkt_v4, sizeof(pkt_v4), + NULL, NULL, &retval, &duration); + CHECK(duration > 500000000, /* 500ms */ + "test-run-signal-duration", + "duration %dns > 500ms\n", + duration); + + signal(SIGALRM, SIG_DFL); +} + int main(void) { srand(time(NULL)); @@ -2138,6 +2180,8 @@ int main(void) test_flow_dissector(); test_spinlock(); test_map_lock(); + test_signal_pending(BPF_PROG_TYPE_SOCKET_FILTER); + test_signal_pending(BPF_PROG_TYPE_FLOW_DISSECTOR); printf("Summary: %d PASSED, %d FAILED\n", pass_cnt, error_cnt); return error_cnt ? EXIT_FAILURE : EXIT_SUCCESS; |