Make `bpf link show` aware of new link type, that is links attached to
netns. When listing netns-attached links, display netns inode number as its
identifier and link attach type.
Signed-off-by: Jakub Sitnicki <jakub@xxxxxxxxxxxxxx>
---
tools/bpf/bpftool/link.c | 19 +++++++++++++++++++
1 file changed, 19 insertions(+)
diff --git a/tools/bpf/bpftool/link.c b/tools/bpf/bpftool/link.c
index 670a561dc31b..83a17d62c4c3 100644
--- a/tools/bpf/bpftool/link.c
+++ b/tools/bpf/bpftool/link.c
@@ -17,6 +17,7 @@ static const char * const link_type_name[] = {
[BPF_LINK_TYPE_TRACING] = "tracing",
[BPF_LINK_TYPE_CGROUP] = "cgroup",
[BPF_LINK_TYPE_ITER] = "iter",
+ [BPF_LINK_TYPE_NETNS] = "netns",
};
static int link_parse_fd(int *argc, char ***argv)
@@ -122,6 +123,16 @@ static int show_link_close_json(int fd, struct bpf_link_info *info)
jsonw_uint_field(json_wtr, "attach_type",
info->cgroup.attach_type);
break;
+ case BPF_LINK_TYPE_NETNS:
+ jsonw_uint_field(json_wtr, "netns_ino",
+ info->netns.netns_ino);
+ if (info->netns.attach_type < ARRAY_SIZE(attach_type_name))
+ jsonw_string_field(json_wtr, "attach_type",
+ attach_type_name[info->netns.attach_type]);
+ else
+ jsonw_uint_field(json_wtr, "attach_type",
+ info->netns.attach_type);
+ break;
default:
break;
}
@@ -190,6 +201,14 @@ static int show_link_close_plain(int fd, struct bpf_link_info *info)
else
printf("attach_type %u ", info->cgroup.attach_type);
break;
+ case BPF_LINK_TYPE_NETNS:
+ printf("\n\tnetns_ino %u ", info->netns.netns_ino);
+ if (info->netns.attach_type < ARRAY_SIZE(attach_type_name))
+ printf("attach_type %s ",
+ attach_type_name[info->netns.attach_type]);
+ else
+ printf("attach_type %u ", info->netns.attach_type);
+ break;
default:
break;
}
--
2.25.4
