diff options
| -rw-r--r-- | tools/testing/selftests/bpf/test_verifier.c | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/tools/testing/selftests/bpf/test_verifier.c b/tools/testing/selftests/bpf/test_verifier.c index 59bfa6201d1d..58b5a349d3ba 100644 --- a/tools/testing/selftests/bpf/test_verifier.c +++ b/tools/testing/selftests/bpf/test_verifier.c @@ -88,6 +88,10 @@ struct bpf_test { int fixup_map_event_output[MAX_FIXUPS]; int fixup_map_reuseport_array[MAX_FIXUPS]; int fixup_map_ringbuf[MAX_FIXUPS]; + /* Expected verifier log output for result REJECT or VERBOSE_ACCEPT. + * Can be a tab-separated sequence of expected strings. An empty string + * means no log verification. + */ const char *errstr; const char *errstr_unpriv; uint32_t insn_processed; @@ -995,13 +999,19 @@ static int do_prog_test_run(int fd_prog, bool unpriv, uint32_t expected_val, return 0; } +/* Returns true if every part of exp (tab-separated) appears in log, in order. + * + * If exp is an empty string, returns true. + */ static bool cmp_str_seq(const char *log, const char *exp) { - char needle[80]; + char needle[200]; const char *p, *q; int len; do { + if (!strlen(exp)) + break; p = strchr(exp, '\t'); if (!p) p = exp + strlen(exp); @@ -1015,7 +1025,7 @@ static bool cmp_str_seq(const char *log, const char *exp) needle[len] = 0; q = strstr(log, needle); if (!q) { - printf("FAIL\nUnexpected verifier log in successful load!\n" + printf("FAIL\nUnexpected verifier log!\n" "EXP: %s\nRES:\n", needle); return false; } @@ -1130,7 +1140,7 @@ static void do_test_single(struct bpf_test *test, bool unpriv, printf("FAIL\nUnexpected success to load!\n"); goto fail_log; } - if (!expected_err || !strstr(bpf_vlog, expected_err)) { + if (!expected_err || !cmp_str_seq(bpf_vlog, expected_err)) { printf("FAIL\nUnexpected error message!\n\tEXP: %s\n\tRES: %s\n", expected_err, bpf_vlog); goto fail_log; |