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selftests/bpf: fix veristat's singular file-or-prog filter 

Fix the bug of filtering out filename too early, before we know the
program name, if using unified file-or-prog filter (i.e., -f
<any-glob>). Because we try to filter BPF object file early without
opening and parsing it, if any_glob (file-or-prog) filter is used we
have to accept any filename just to get program name, which might match
any_glob.

Fixes: 10b1b3f3e5 ("selftests/bpf: consolidate and improve file/prog filtering in veristat")
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Acked-by: Stanislav Fomichev <sdf@google.com>
Link: https://lore.kernel.org/r/20221111181242.2101192-1-andrii@kernel.org
Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
This commit is contained in:
Andrii Nakryiko 2022-11-11 10:12:42 -08:00 committed by Martin KaFai Lau
parent 0f7dc423a5
commit eb6af4ceda
1 changed files with 7 additions and 1 deletions
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8
tools/testing/selftests/bpf/veristat.c
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@ -367,7 +367,13 @@ static bool should_process_file_prog(const char *filename, const char *prog_name
if (f->any_glob) {
if (glob_matches(filename, f->any_glob))
return true;
if (prog_name && glob_matches(prog_name, f->any_glob))
/* If we don't know program name yet, any_glob filter
* has to assume that current BPF object file might be
* relevant; we'll check again later on after opening
* BPF object file, at which point program name will
* be known finally.
*/
if (!prog_name || glob_matches(prog_name, f->any_glob))
return true;
} else {
if (f->file_glob && !glob_matches(filename, f->file_glob))