diff options
Diffstat (limited to 'tools/testing/selftests/bpf/prog_tests/signal_pending.c')
| -rw-r--r-- | tools/testing/selftests/bpf/prog_tests/signal_pending.c | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/prog_tests/signal_pending.c b/tools/testing/selftests/bpf/prog_tests/signal_pending.c new file mode 100644 index 0000000000..70b49da5ca --- /dev/null +++ b/tools/testing/selftests/bpf/prog_tests/signal_pending.c @@ -0,0 +1,50 @@ +// SPDX-License-Identifier: GPL-2.0 +#include <test_progs.h> +#include <network_helpers.h> + +static void sigalrm_handler(int s) {} +static struct sigaction sigalrm_action = { + .sa_handler = sigalrm_handler, +}; + +static void test_signal_pending_by_type(enum bpf_prog_type prog_type) +{ + struct bpf_insn prog[4096]; + struct itimerval timeo = { + .it_value.tv_usec = 100000, /* 100ms */ + }; + int prog_fd; + int err; + int i; + LIBBPF_OPTS(bpf_test_run_opts, topts, + .data_in = &pkt_v4, + .data_size_in = sizeof(pkt_v4), + .repeat = 0xffffffff, + ); + + 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_test_load_program(prog_type, prog, ARRAY_SIZE(prog), + "GPL", 0, NULL, 0); + ASSERT_GE(prog_fd, 0, "test-run load"); + + err = sigaction(SIGALRM, &sigalrm_action, NULL); + ASSERT_OK(err, "test-run-signal-sigaction"); + + err = setitimer(ITIMER_REAL, &timeo, NULL); + ASSERT_OK(err, "test-run-signal-timer"); + + err = bpf_prog_test_run_opts(prog_fd, &topts); + ASSERT_LE(topts.duration, 500000000 /* 500ms */, + "test-run-signal-duration"); + + signal(SIGALRM, SIG_DFL); +} + +void test_signal_pending(void) +{ + test_signal_pending_by_type(BPF_PROG_TYPE_SOCKET_FILTER); + test_signal_pending_by_type(BPF_PROG_TYPE_FLOW_DISSECTOR); +} |