| // SPDX-License-Identifier: GPL-2.0 |
| #include <test_progs.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 */ |
| }; |
| __u32 duration = 0, 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); |
| } |
| |
| void test_signal_pending(enum bpf_prog_type prog_type) |
| { |
| test_signal_pending_by_type(BPF_PROG_TYPE_SOCKET_FILTER); |
| test_signal_pending_by_type(BPF_PROG_TYPE_FLOW_DISSECTOR); |
| } |