All of lore.kernel.org
 help / color / mirror / Atom feed
From: Daniel Borkmann <daniel@iogearbox.net>
To: bpf@vger.kernel.org
Cc: netdev@vger.kernel.org, martin.lau@linux.dev,
	razor@blackwall.org, ast@kernel.org, andrii@kernel.org,
	john.fastabend@gmail.com, sdf@google.com, toke@kernel.org,
	kuba@kernel.org, andrew@lunn.ch,
	Daniel Borkmann <daniel@iogearbox.net>,
	Quentin Monnet <quentin@isovalent.com>
Subject: [PATCH bpf-next v4 4/7] bpftool: Implement link show support for netkit
Date: Tue, 24 Oct 2023 23:49:01 +0200	[thread overview]
Message-ID: <20231024214904.29825-5-daniel@iogearbox.net> (raw)
In-Reply-To: <20231024214904.29825-1-daniel@iogearbox.net>

Add support to dump netkit link information to bpftool in similar way as
we have for XDP. The netkit link info only exposes the ifindex and the
attach_type.

Below shows an example link dump output, and a cgroup link is included for
comparison, too:

  # bpftool link
  [...]
  10: cgroup  prog 2466
        cgroup_id 1  attach_type cgroup_inet6_post_bind
  [...]
  8: netkit  prog 35
        ifindex nk1(18)  attach_type netkit_primary
  [...]

Equivalent json output:

  # bpftool link --json
  [...]
  {
    "id": 10,
    "type": "cgroup",
    "prog_id": 2466,
    "cgroup_id": 1,
    "attach_type": "cgroup_inet6_post_bind"
  },
  [...]
  {
    "id": 12,
    "type": "netkit",
    "prog_id": 61,
    "devname": "nk1",
    "ifindex": 21,
    "attach_type": "netkit_primary"
  }
  [...]

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Reviewed-by: Quentin Monnet <quentin@isovalent.com>
---
 tools/bpf/bpftool/link.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/tools/bpf/bpftool/link.c b/tools/bpf/bpftool/link.c
index 4b1407b05056..a1528cde81ab 100644
--- a/tools/bpf/bpftool/link.c
+++ b/tools/bpf/bpftool/link.c
@@ -451,6 +451,10 @@ static int show_link_close_json(int fd, struct bpf_link_info *info)
 		show_link_ifindex_json(info->tcx.ifindex, json_wtr);
 		show_link_attach_type_json(info->tcx.attach_type, json_wtr);
 		break;
+	case BPF_LINK_TYPE_NETKIT:
+		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_XDP:
 		show_link_ifindex_json(info->xdp.ifindex, json_wtr);
 		break;
@@ -791,6 +795,11 @@ static int show_link_close_plain(int fd, struct bpf_link_info *info)
 		show_link_ifindex_plain(info->tcx.ifindex);
 		show_link_attach_type_plain(info->tcx.attach_type);
 		break;
+	case BPF_LINK_TYPE_NETKIT:
+		printf("\n\t");
+		show_link_ifindex_plain(info->netkit.ifindex);
+		show_link_attach_type_plain(info->netkit.attach_type);
+		break;
 	case BPF_LINK_TYPE_XDP:
 		printf("\n\t");
 		show_link_ifindex_plain(info->xdp.ifindex);
-- 
2.34.1


  parent reply	other threads:[~2023-10-24 21:49 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-10-24 21:48 [PATCH bpf-next v4 0/7] Add bpf programmable net device Daniel Borkmann
2023-10-24 21:48 ` [PATCH bpf-next v4 1/7] netkit, bpf: " Daniel Borkmann
2023-10-25 15:47   ` Jiri Pirko
2023-10-25 17:20     ` Daniel Borkmann
2023-10-26  5:18       ` Jiri Pirko
2023-10-26 12:11         ` Daniel Borkmann
2023-10-25 19:21     ` Nikolay Aleksandrov
2023-10-26  5:26       ` Jiri Pirko
2023-10-26  6:21         ` Nikolay Aleksandrov
2023-10-25 21:24   ` Kui-Feng Lee
2023-10-25 22:09     ` Martin KaFai Lau
2023-10-26  1:15       ` Kui-Feng Lee
2023-10-26  1:18         ` Kui-Feng Lee
2023-10-26  6:20           ` Daniel Borkmann
2023-10-26 17:47             ` Kui-Feng Lee
2023-10-26 18:46               ` Martin KaFai Lau
2023-10-24 21:48 ` [PATCH bpf-next v4 2/7] tools: Sync if_link uapi header Daniel Borkmann
2023-10-24 21:49 ` [PATCH bpf-next v4 3/7] libbpf: Add link-based API for netkit Daniel Borkmann
2023-10-24 21:49 ` Daniel Borkmann [this message]
2023-10-24 21:49 ` [PATCH bpf-next v4 5/7] bpftool: Extend net dump with netkit progs Daniel Borkmann
2023-10-24 21:49 ` [PATCH bpf-next v4 6/7] selftests/bpf: Add netlink helper library Daniel Borkmann
2023-10-24 21:49 ` [PATCH bpf-next v4 7/7] selftests/bpf: Add selftests for netkit Daniel Borkmann
2023-10-24 22:45 ` [PATCH bpf-next v4 0/7] Add bpf programmable net device Martin KaFai Lau
2023-10-24 23:50 ` patchwork-bot+netdevbpf
2023-10-25 15:50   ` Jiri Pirko
2023-10-25 16:54     ` Martin KaFai Lau
2023-10-26  5:35       ` Jiri Pirko

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20231024214904.29825-5-daniel@iogearbox.net \
    --to=daniel@iogearbox.net \
    --cc=andrew@lunn.ch \
    --cc=andrii@kernel.org \
    --cc=ast@kernel.org \
    --cc=bpf@vger.kernel.org \
    --cc=john.fastabend@gmail.com \
    --cc=kuba@kernel.org \
    --cc=martin.lau@linux.dev \
    --cc=netdev@vger.kernel.org \
    --cc=quentin@isovalent.com \
    --cc=razor@blackwall.org \
    --cc=sdf@google.com \
    --cc=toke@kernel.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.