1 // SPDX-License-Identifier: GPL-2.0
2 #include <test_progs.h>
3 #include <network_helpers.h>
4
5 static void sigalrm_handler(int s) {}
6 static struct sigaction sigalrm_action = {
7 .sa_handler = sigalrm_handler,
8 };
9
10 static void test_signal_pending_by_type(enum bpf_prog_type prog_type)
11 {
12 struct bpf_insn prog[4096];
13 struct itimerval timeo = {
14 .it_value.tv_usec = 100000, /* 100ms */
15 };
16 int prog_fd;
17 int err;
18 int i;
19 LIBBPF_OPTS(bpf_test_run_opts, topts,
20 .data_in = &pkt_v4,
21 .data_size_in = sizeof(pkt_v4),
22 .repeat = 0xffffffff,
23 );
24
25 for (i = 0; i < ARRAY_SIZE(prog); i++)
26 prog[i] = BPF_ALU64_IMM(BPF_MOV, BPF_REG_0, 0);
27 prog[ARRAY_SIZE(prog) - 1] = BPF_EXIT_INSN();
28
29 prog_fd = bpf_test_load_program(prog_type, prog, ARRAY_SIZE(prog),
30 "GPL", 0, NULL, 0);
31 ASSERT_GE(prog_fd, 0, "test-run load");
32
33 err = sigaction(SIGALRM, &sigalrm_action, NULL);
34 ASSERT_OK(err, "test-run-signal-sigaction");
35
36 err = setitimer(ITIMER_REAL, &timeo, NULL);
37 ASSERT_OK(err, "test-run-signal-timer");
38
39 err = bpf_prog_test_run_opts(prog_fd, &topts);
40 ASSERT_LE(topts.duration, 500000000 /* 500ms */,
41 "test-run-signal-duration");
42
43 signal(SIGALRM, SIG_DFL);
44 }
45
46 void test_signal_pending(void)
47 {
48 test_signal_pending_by_type(BPF_PROG_TYPE_SOCKET_FILTER);
49 test_signal_pending_by_type(BPF_PROG_TYPE_FLOW_DISSECTOR);
50 }
51
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