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author | Quentin Monnet <quentin.monnet@netronome.com> | 2019-07-05 18:54:33 +0100 |
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committer | Daniel Borkmann <daniel@iogearbox.net> | 2019-07-05 23:48:07 +0200 |
commit | ba95c7452439756d4f6dceb5a188b7c31dbbe5b6 (patch) | |
tree | 3de589eb0db88df304b599186a92a833a0d96742 /tools/bpf/bpftool/main.h | |
parent | e232cb6ff75bbfdae86e01ada24ead7528dbebe4 (diff) | |
download | linux-ba95c7452439756d4f6dceb5a188b7c31dbbe5b6.tar.gz |
tools: bpftool: add "prog run" subcommand to test-run programs
Add a new "bpftool prog run" subcommand to run a loaded program on input data (and possibly with input context) passed by the user. Print output data (and output context if relevant) into a file or into the console. Print return value and duration for the test run into the console. A "repeat" argument can be passed to run the program several times in a row. The command does not perform any kind of verification based on program type (Is this program type allowed to use an input context?) or on data consistency (Can I work with empty input data?), this is left to the kernel. Example invocation: # perl -e 'print "\x0" x 14' | ./bpftool prog run \ pinned /sys/fs/bpf/sample_ret0 \ data_in - data_out - repeat 5 0000000 0000 0000 0000 0000 0000 0000 0000 | ........ ...... Return value: 0, duration (average): 260ns When one of data_in or ctx_in is "-", bpftool reads from standard input, in binary format. Other formats (JSON, hexdump) might be supported (via an optional command line keyword like "data_fmt_in") in the future if relevant, but this would require doing more parsing in bpftool. v2: - Fix argument names for function check_single_stdin(). (Yonghong) Signed-off-by: Quentin Monnet <quentin.monnet@netronome.com> Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com> Acked-by: Yonghong Song <yhs@fb.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Diffstat (limited to 'tools/bpf/bpftool/main.h')
-rw-r--r-- | tools/bpf/bpftool/main.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/tools/bpf/bpftool/main.h b/tools/bpf/bpftool/main.h index 9c5d9c80f71e..3ef0d9051e10 100644 --- a/tools/bpf/bpftool/main.h +++ b/tools/bpf/bpftool/main.h @@ -101,6 +101,7 @@ void p_err(const char *fmt, ...); void p_info(const char *fmt, ...); bool is_prefix(const char *pfx, const char *str); +int detect_common_prefix(const char *arg, ...); void fprint_hex(FILE *f, void *arg, unsigned int n, const char *sep); void usage(void) __noreturn; |