diff mbox series

[bpf-next,v3,3/5] bpftool: Add link dump support for BPF_LINK_TYPE_SOCKMAP

Message ID 20240326022209.656999-1-yonghong.song@linux.dev (mailing list archive)
State Superseded
Delegated to: BPF
Headers show
Series bpf: Add bpf_link support for sk_msg and sk_skb progs | expand

Checks

Context Check Description
netdev/series_format success Posting correctly formatted
netdev/tree_selection success Clearly marked for bpf-next, async
netdev/ynl success Generated files up to date; no warnings/errors; no diff in generated;
netdev/fixes_present success Fixes tag not required for -next series
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 8 this patch: 8
netdev/build_tools success Errors and warnings before: 0 this patch: 0
netdev/cc_maintainers warning 8 maintainers not CCed: song@kernel.org kpsingh@kernel.org eddyz87@gmail.com jolsa@kernel.org martin.lau@linux.dev sdf@google.com quentin@isovalent.com haoluo@google.com
netdev/build_clang success Errors and warnings before: 8 this patch: 8
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/deprecated_api success None detected
netdev/check_selftest success No net selftest shell script
netdev/verify_fixes success No Fixes tag
netdev/build_allmodconfig_warn success Errors and warnings before: 8 this patch: 8
netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 21 lines checked
netdev/build_clang_rust success No Rust files in patch. Skipping build
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/source_inline success Was 0 now: 0
bpf/vmtest-bpf-next-PR fail PR summary
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bpf/vmtest-bpf-next-VM_Test-7 success Logs for aarch64-gcc / test (test_progs, false, 360) / test_progs on aarch64 with gcc
bpf/vmtest-bpf-next-VM_Test-6 success Logs for aarch64-gcc / test (test_maps, false, 360) / test_maps on aarch64 with gcc
bpf/vmtest-bpf-next-VM_Test-8 success Logs for aarch64-gcc / test (test_progs_no_alu32, false, 360) / test_progs_no_alu32 on aarch64 with gcc
bpf/vmtest-bpf-next-VM_Test-21 success Logs for x86_64-gcc / test (test_maps, false, 360) / test_maps on x86_64 with gcc
bpf/vmtest-bpf-next-VM_Test-24 success Logs for x86_64-gcc / test (test_progs_no_alu32_parallel, true, 30) / test_progs_no_alu32_parallel on x86_64 with gcc
bpf/vmtest-bpf-next-VM_Test-25 success Logs for x86_64-gcc / test (test_progs_parallel, true, 30) / test_progs_parallel on x86_64 with gcc
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bpf/vmtest-bpf-next-VM_Test-38 fail Logs for x86_64-llvm-18 / test (test_progs, false, 360) / test_progs on x86_64 with llvm-18
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Commit Message

Yonghong Song March 26, 2024, 2:22 a.m. UTC 
An example output looks like:
  $ bpftool link
    1776: sk_skb  prog 49730
            map_id 0  attach_type sk_skb_verdict
            pids test_progs(8424)
    1777: sk_skb  prog 49755
            map_id 0  attach_type sk_skb_stream_verdict
            pids test_progs(8424)
    1778: sk_msg  prog 49770
            map_id 8208  attach_type sk_msg_verdict
            pids test_progs(8424)

Signed-off-by: Yonghong Song <yonghong.song@linux.dev>
---
 tools/bpf/bpftool/link.c | 9 +++++++++
 1 file changed, 9 insertions(+)

Comments

Quentin Monnet March 27, 2024, 11:58 a.m. UTC | #1 
2024-03-26 02:22 UTC+0000 ~ Yonghong Song <yonghong.song@linux.dev>
> An example output looks like:
>   $ bpftool link
>     1776: sk_skb  prog 49730
>             map_id 0  attach_type sk_skb_verdict
>             pids test_progs(8424)
>     1777: sk_skb  prog 49755
>             map_id 0  attach_type sk_skb_stream_verdict
>             pids test_progs(8424)
>     1778: sk_msg  prog 49770
>             map_id 8208  attach_type sk_msg_verdict
>             pids test_progs(8424)
> 
> Signed-off-by: Yonghong Song <yonghong.song@linux.dev>

Reviewed-by: Quentin Monnet <qmo@kernel.org>
diff mbox series

Patch

diff --git a/tools/bpf/bpftool/link.c b/tools/bpf/bpftool/link.c
index afde9d0c2ea1..5cd503b763d7 100644
--- a/tools/bpf/bpftool/link.c
+++ b/tools/bpf/bpftool/link.c
@@ -526,6 +526,10 @@  static int show_link_close_json(int fd, struct bpf_link_info *info)
 		show_link_ifindex_json(info->netkit.ifindex, json_wtr);
 		show_link_attach_type_json(info->netkit.attach_type, json_wtr);
 		break;
+	case BPF_LINK_TYPE_SOCKMAP:
+		jsonw_uint_field(json_wtr, "map_id", info->sockmap.map_id);
+		show_link_attach_type_json(info->sockmap.attach_type, json_wtr);
+		break;
 	case BPF_LINK_TYPE_XDP:
 		show_link_ifindex_json(info->xdp.ifindex, json_wtr);
 		break;
@@ -915,6 +919,11 @@  static int show_link_close_plain(int fd, struct bpf_link_info *info)
 		show_link_ifindex_plain(info->netkit.ifindex);
 		show_link_attach_type_plain(info->netkit.attach_type);
 		break;
+	case BPF_LINK_TYPE_SOCKMAP:
+		printf("\n\t");
+		printf("map_id %u  ", info->sockmap.map_id);
+		show_link_attach_type_plain(info->sockmap.attach_type);
+		break;
 	case BPF_LINK_TYPE_XDP:
 		printf("\n\t");
 		show_link_ifindex_plain(info->xdp.ifindex);