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// 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);
}
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