diff mbox series

[bpf-next,v2,4/6] bpftool: Add link dump support for BPF_LINK_TYPE_SK_{MSG,SKB}

Message ID 20240319175422.2942069-1-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State Superseded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

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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
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netdev/cc_maintainers warning 8 maintainers not CCed: haoluo@google.com eddyz87@gmail.com quentin@isovalent.com sdf@google.com song@kernel.org kpsingh@kernel.org martin.lau@linux.dev jolsa@kernel.org
netdev/build_clang success Errors and warnings before: 8 this patch: 8
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Commit Message

Yonghong Song March 19, 2024, 5:54 p.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 | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

Comments

Quentin Monnet March 20, 2024, 5:11 p.m. UTC | #1 
2024-03-19 17:54 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>

Thanks!
diff mbox series

Patch

diff --git a/tools/bpf/bpftool/link.c b/tools/bpf/bpftool/link.c
index afde9d0c2ea1..c01d3c38cdf0 100644
--- a/tools/bpf/bpftool/link.c
+++ b/tools/bpf/bpftool/link.c
@@ -526,6 +526,14 @@  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_SK_MSG:
+		jsonw_uint_field(json_wtr, "map_id", info->skmsg.map_id);
+		show_link_attach_type_json(info->skmsg.attach_type, json_wtr);
+		break;
+	case BPF_LINK_TYPE_SK_SKB:
+		jsonw_uint_field(json_wtr, "map_id", info->skskb.map_id);
+		show_link_attach_type_json(info->skskb.attach_type, json_wtr);
+		break;
 	case BPF_LINK_TYPE_XDP:
 		show_link_ifindex_json(info->xdp.ifindex, json_wtr);
 		break;
@@ -915,6 +923,16 @@  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_SK_MSG:
+		printf("\n\t");
+		printf("map_id %u  ", info->skmsg.map_id);
+		show_link_attach_type_plain(info->skmsg.attach_type);
+		break;
+	case BPF_LINK_TYPE_SK_SKB:
+		printf("\n\t");
+		printf("map_id %u  ", info->skskb.map_id);
+		show_link_attach_type_plain(info->skskb.attach_type);
+		break;
 	case BPF_LINK_TYPE_XDP:
 		printf("\n\t");
 		show_link_ifindex_plain(info->xdp.ifindex);