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https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
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bad2e478af
Turn ony libbpf 1.0 mode. Fix all the explicit IS_ERR checks that now will be broken because libbpf returns NULL on error (and sets errno). Fix ASSERT_OK_PTR and ASSERT_ERR_PTR to work for both old mode and new modes and use them throughout selftests. This is trivial to do by using libbpf_get_error() API that all libbpf users are supposed to use, instead of IS_ERR checks. A bunch of checks also did explicit -1 comparison for various fd-returning APIs. Such checks are replaced with >= 0 or < 0 cases. There were also few misuses of bpf_object__find_map_by_name() in test_maps. Those are fixed in this patch as well. Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: John Fastabend <john.fastabend@gmail.com> Acked-by: Toke Høiland-Jørgensen <toke@redhat.com> Link: https://lore.kernel.org/bpf/20210525035935.1461796-3-andrii@kernel.org
71 lines
2 KiB
C
71 lines
2 KiB
C
// SPDX-License-Identifier: GPL-2.0
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#include <test_progs.h>
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void test_obj_name(void)
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{
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struct {
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const char *name;
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int success;
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int expected_errno;
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} tests[] = {
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{ "", 1, 0 },
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{ "_123456789ABCDE", 1, 0 },
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{ "_123456789ABCDEF", 0, EINVAL },
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{ "_123456789ABCD\n", 0, EINVAL },
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};
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struct bpf_insn prog[] = {
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BPF_ALU64_IMM(BPF_MOV, BPF_REG_0, 0),
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BPF_EXIT_INSN(),
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};
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__u32 duration = 0;
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int i;
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for (i = 0; i < sizeof(tests) / sizeof(tests[0]); i++) {
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size_t name_len = strlen(tests[i].name) + 1;
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union bpf_attr attr;
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size_t ncopy;
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int fd;
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/* test different attr.prog_name during BPF_PROG_LOAD */
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ncopy = name_len < sizeof(attr.prog_name) ?
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name_len : sizeof(attr.prog_name);
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bzero(&attr, sizeof(attr));
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attr.prog_type = BPF_PROG_TYPE_SCHED_CLS;
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attr.insn_cnt = 2;
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attr.insns = ptr_to_u64(prog);
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attr.license = ptr_to_u64("");
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memcpy(attr.prog_name, tests[i].name, ncopy);
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fd = syscall(__NR_bpf, BPF_PROG_LOAD, &attr, sizeof(attr));
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CHECK((tests[i].success && fd < 0) ||
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(!tests[i].success && fd >= 0) ||
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(!tests[i].success && errno != tests[i].expected_errno),
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"check-bpf-prog-name",
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"fd %d(%d) errno %d(%d)\n",
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fd, tests[i].success, errno, tests[i].expected_errno);
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if (fd >= 0)
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close(fd);
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/* test different attr.map_name during BPF_MAP_CREATE */
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ncopy = name_len < sizeof(attr.map_name) ?
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name_len : sizeof(attr.map_name);
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bzero(&attr, sizeof(attr));
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attr.map_type = BPF_MAP_TYPE_ARRAY;
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attr.key_size = 4;
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attr.value_size = 4;
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attr.max_entries = 1;
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attr.map_flags = 0;
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memcpy(attr.map_name, tests[i].name, ncopy);
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fd = syscall(__NR_bpf, BPF_MAP_CREATE, &attr, sizeof(attr));
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CHECK((tests[i].success && fd < 0) ||
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(!tests[i].success && fd >= 0) ||
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(!tests[i].success && errno != tests[i].expected_errno),
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"check-bpf-map-name",
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"fd %d(%d) errno %d(%d)\n",
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fd, tests[i].success, errno, tests[i].expected_errno);
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if (fd >= 0)
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close(fd);
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}
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}
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