78 lines · c
1// SPDX-License-Identifier: GPL-2.02#include <test_progs.h>3#include <network_helpers.h>4 5#include "test_pkt_access.skel.h"6 7static const __u32 duration;8 9static void check_run_cnt(int prog_fd, __u64 run_cnt)10{11 struct bpf_prog_info info = {};12 __u32 info_len = sizeof(info);13 int err;14 15 err = bpf_prog_get_info_by_fd(prog_fd, &info, &info_len);16 if (CHECK(err, "get_prog_info", "failed to get bpf_prog_info for fd %d\n", prog_fd))17 return;18 19 CHECK(run_cnt != info.run_cnt, "run_cnt",20 "incorrect number of repetitions, want %llu have %llu\n", run_cnt, info.run_cnt);21}22 23void test_prog_run_opts(void)24{25 struct test_pkt_access *skel;26 int err, stats_fd = -1, prog_fd;27 char buf[10] = {};28 __u64 run_cnt = 0;29 30 LIBBPF_OPTS(bpf_test_run_opts, topts,31 .repeat = 1,32 .data_in = &pkt_v4,33 .data_size_in = sizeof(pkt_v4),34 .data_out = buf,35 .data_size_out = 5,36 );37 38 stats_fd = bpf_enable_stats(BPF_STATS_RUN_TIME);39 if (!ASSERT_GE(stats_fd, 0, "enable_stats good fd"))40 return;41 42 skel = test_pkt_access__open_and_load();43 if (!ASSERT_OK_PTR(skel, "open_and_load"))44 goto cleanup;45 46 prog_fd = bpf_program__fd(skel->progs.test_pkt_access);47 48 err = bpf_prog_test_run_opts(prog_fd, &topts);49 ASSERT_EQ(errno, ENOSPC, "test_run errno");50 ASSERT_ERR(err, "test_run");51 ASSERT_OK(topts.retval, "test_run retval");52 53 ASSERT_EQ(topts.data_size_out, sizeof(pkt_v4), "test_run data_size_out");54 ASSERT_EQ(buf[5], 0, "overflow, BPF_PROG_TEST_RUN ignored size hint");55 56 run_cnt += topts.repeat;57 check_run_cnt(prog_fd, run_cnt);58 59 topts.data_out = NULL;60 topts.data_size_out = 0;61 topts.repeat = 2;62 errno = 0;63 64 err = bpf_prog_test_run_opts(prog_fd, &topts);65 ASSERT_OK(errno, "run_no_output errno");66 ASSERT_OK(err, "run_no_output err");67 ASSERT_OK(topts.retval, "run_no_output retval");68 69 run_cnt += topts.repeat;70 check_run_cnt(prog_fd, run_cnt);71 72cleanup:73 if (skel)74 test_pkt_access__destroy(skel);75 if (stats_fd >= 0)76 close(stats_fd);77}78