bpf/prog_tests/hash_large_key.c

0001 // SPDX-License-Identifier: GPL-2.0
0002
0003 #include <test_progs.h>
0004 #include "test_hash_large_key.skel.h"
0005
0006 void test_hash_large_key(void)
0007 {
0008     int err, value = 21, duration = 0, hash_map_fd;
0009     struct test_hash_large_key *skel;
0010
0011     struct bigelement {
0012         int a;
0013         char b[4096];
0014         long long c;
0015     } key;
0016     bzero(&key, sizeof(key));
0017
0018     skel = test_hash_large_key__open_and_load();
0019     if (CHECK(!skel, "skel_open_and_load", "skeleton open/load failed\n"))
0020         return;
0021
0022     hash_map_fd = bpf_map__fd(skel->maps.hash_map);
0023     if (CHECK(hash_map_fd < 0, "bpf_map__fd", "failed\n"))
0024         goto cleanup;
0025
0026     err = test_hash_large_key__attach(skel);
0027     if (CHECK(err, "attach_raw_tp", "err %d\n", err))
0028         goto cleanup;
0029
0030     err = bpf_map_update_elem(hash_map_fd, &key, &value, BPF_ANY);
0031     if (CHECK(err, "bpf_map_update_elem", "errno=%d\n", errno))
0032         goto cleanup;
0033
0034     key.c = 1;
0035     err = bpf_map_lookup_elem(hash_map_fd, &key, &value);
0036     if (CHECK(err, "bpf_map_lookup_elem", "errno=%d\n", errno))
0037         goto cleanup;
0038
0039     CHECK_FAIL(value != 42);
0040
0041 cleanup:
0042     test_hash_large_key__destroy(skel);
0043 }