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linux/tools/bpf/bpftool
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Florian Westphal d0fe92fb5e tools: bpftool: print netfilter link info 
Dump protocol family, hook and priority value:
$ bpftool link
2: netfilter  prog 14
        ip input prio -128
        pids install(3264)
5: netfilter  prog 14
        ip6 forward prio 21
        pids a.out(3387)
9: netfilter  prog 14
        ip prerouting prio 123
        pids a.out(5700)
10: netfilter  prog 14
        ip input prio 21
        pids test2(5701)

v2: Quentin Monnet suggested to also add 'bpftool net' support:

$ bpftool net
xdp:

tc:

flow_dissector:

netfilter:

        ip prerouting prio 21 prog_id 14
        ip input prio -128 prog_id 14
        ip input prio 21 prog_id 14
        ip forward prio 21 prog_id 14
        ip output prio 21 prog_id 14
        ip postrouting prio 21 prog_id 14

'bpftool net' only dumps netfilter link type, links are sorted by protocol
family, hook and priority.

v5: fix bpf ci failure: libbpf needs small update to prog_type_name[]
    and probe_prog_load helper.
v4: don't fail with -EOPNOTSUPP in libbpf probe_prog_load, update
    prog_type_name[] with "netfilter" entry (bpf ci)
v3: fix bpf.h copy, 'reserved' member was removed (Alexei)
    use p_err, not fprintf (Quentin)

Suggested-by: Quentin Monnet <quentin@isovalent.com>
Link: https://lore.kernel.org/bpf/eeeaac99-9053-90c2-aa33-cc1ecb1ae9ca@isovalent.com/
Reviewed-by: Quentin Monnet <quentin@isovalent.com>
Signed-off-by: Florian Westphal <fw@strlen.de>
Link: https://lore.kernel.org/r/20230421170300.24115-6-fw@strlen.de
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2023-04-21 11:34:49 -07:00
..
bash-completion bpftool: Clean up _bpftool_once_attr() calls in bash completion 2023-04-05 21:27:27 -07:00
Documentation bpftool: Update doc to explain struct_ops register subcommand. 2023-04-21 11:10:10 -07:00
skeleton bpftool: Add bpf_cookie to link output 2022-03-15 15:07:27 -07:00
.gitignore bpftool: Fix SPDX tag for Makefiles and .gitignore 2021-11-10 09:00:52 -08:00
btf_dumper.c bpftool: Replace "__fallthrough" by a comment to address merge conflict 2023-04-20 16:38:10 -07:00
btf.c bpftool: Use bpf_{btf,link,map,prog}_get_info_by_fd() 2023-02-16 15:32:45 -08:00
cfg.c bpftool: Support printing opcodes and source file references in CFG 2023-04-05 21:27:27 -07:00
cfg.h bpftool: Support printing opcodes and source file references in CFG 2023-04-05 21:27:27 -07:00
cgroup.c bpftool: Use bpf_{btf,link,map,prog}_get_info_by_fd() 2023-02-16 15:32:45 -08:00
common.c bpftool: Register struct_ops with a link. 2023-04-21 11:10:10 -07:00
feature.c bpftool: fix output for skipping kernel config check 2023-01-10 17:42:31 -08:00
gen.c bpftool: clean-up usage of libbpf_get_error() 2022-11-20 16:17:46 -08:00
iter.c bpftool: clean-up usage of libbpf_get_error() 2022-11-20 16:17:46 -08:00
jit_disasm.c bpftool: Fix spelling mistake "disasembler" -> "disassembler" 2022-10-26 18:20:22 -07:00
json_writer.c tools: bpftool: json: Fix backslash escape typo in jsonw_puts 2023-03-29 09:48:45 -07:00
json_writer.h tools: bpftool: json: Fix backslash escape typo in jsonw_puts 2023-03-29 09:48:45 -07:00
link.c tools: bpftool: print netfilter link info 2023-04-21 11:34:49 -07:00
main.c bpftool: clean-up usage of libbpf_get_error() 2022-11-20 16:17:46 -08:00
main.h tools: bpftool: print netfilter link info 2023-04-21 11:34:49 -07:00
Makefile bpftool: Always disable stack protection for BPF objects 2023-01-13 16:44:21 +01:00
map_perf_ring.c bpftool: Fix error message of strerror 2022-09-30 15:40:46 -07:00
map.c bpftool: Use bpf_{btf,link,map,prog}_get_info_by_fd() 2023-02-16 15:32:45 -08:00
net.c tools: bpftool: print netfilter link info 2023-04-21 11:34:49 -07:00
netlink_dumper.c
netlink_dumper.h
perf.c bpftool: Define _GNU_SOURCE only once 2022-10-25 10:11:56 -07:00
pids.c libbpf: Hashmap interface update to allow both long and void* keys/values 2022-11-09 20:45:14 -08:00
prog.c bpftool: Register struct_ops with a link. 2023-04-21 11:10:10 -07:00
struct_ops.c bpftool: Register struct_ops with a link. 2023-04-21 11:10:10 -07:00
tracelog.c bpftool, musl compat: Replace sys/fcntl.h by fcntl.h 2022-04-25 23:24:28 +02:00
xlated_dumper.c bpftool: Support printing opcodes and source file references in CFG 2023-04-05 21:27:27 -07:00
xlated_dumper.h bpftool: Support printing opcodes and source file references in CFG 2023-04-05 21:27:27 -07:00