netdev - [PATCH bpf-next 2/5] tools: bpf: support BPF_CGROUP_INET{4,6}_SOCK

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Date:   Thu, 17 Jan 2019 16:41:03 -0800
From:   Stanislav Fomichev <sdf@...gle.com>
To:     netdev@...r.kernel.org
Cc:     davem@...emloft.net, ast@...nel.org, daniel@...earbox.net,
        Stanislav Fomichev <sdf@...gle.com>
Subject: [PATCH bpf-next 2/5] tools: bpf: support BPF_CGROUP_INET{4,6}_SOCK_RELEASE
 in libbpf/bpftool

Sync uapi and make sure libbpf and bpftools are aware of the hooks.

Signed-off-by: Stanislav Fomichev <sdf@...gle.com>
---
 tools/bpf/bpftool/cgroup.c     | 2 ++
 tools/include/uapi/linux/bpf.h | 2 ++
 tools/lib/bpf/libbpf.c         | 4 ++++
 3 files changed, 8 insertions(+)

diff --git a/tools/bpf/bpftool/cgroup.c b/tools/bpf/bpftool/cgroup.c
index 4b5c8da2a7c0..3474f810ba5a 100644
--- a/tools/bpf/bpftool/cgroup.c
+++ b/tools/bpf/bpftool/cgroup.c
@@ -31,6 +31,8 @@ static const char * const attach_type_strings[] = {
 	[BPF_CGROUP_INET_INGRESS] = "ingress",
 	[BPF_CGROUP_INET_EGRESS] = "egress",
 	[BPF_CGROUP_INET_SOCK_CREATE] = "sock_create",
+	[BPF_CGROUP_INET4_SOCK_RELEASE] = "sock_release4",
+	[BPF_CGROUP_INET6_SOCK_RELEASE] = "sock_release6",
 	[BPF_CGROUP_SOCK_OPS] = "sock_ops",
 	[BPF_CGROUP_DEVICE] = "device",
 	[BPF_CGROUP_INET4_BIND] = "bind4",
diff --git a/tools/include/uapi/linux/bpf.h b/tools/include/uapi/linux/bpf.h
index 91c43884f295..8e78aa28a42e 100644
--- a/tools/include/uapi/linux/bpf.h
+++ b/tools/include/uapi/linux/bpf.h
@@ -186,6 +186,8 @@ enum bpf_attach_type {
 	BPF_CGROUP_UDP6_SENDMSG,
 	BPF_LIRC_MODE2,
 	BPF_FLOW_DISSECTOR,
+	BPF_CGROUP_INET4_SOCK_RELEASE,
+	BPF_CGROUP_INET6_SOCK_RELEASE,
 	__MAX_BPF_ATTACH_TYPE
 };
 
diff --git a/tools/lib/bpf/libbpf.c b/tools/lib/bpf/libbpf.c
index 169e347c76f6..fdadd1ac22ad 100644
--- a/tools/lib/bpf/libbpf.c
+++ b/tools/lib/bpf/libbpf.c
@@ -2626,6 +2626,10 @@ static const struct {
 	BPF_APROG_SEC("cgroup_skb/egress",	BPF_PROG_TYPE_CGROUP_SKB,
 						BPF_CGROUP_INET_EGRESS),
 	BPF_APROG_COMPAT("cgroup/skb",		BPF_PROG_TYPE_CGROUP_SKB),
+	BPF_EAPROG_SEC("cgroup/sock_release4",	BPF_PROG_TYPE_CGROUP_SOCK,
+						BPF_CGROUP_INET4_SOCK_RELEASE),
+	BPF_EAPROG_SEC("cgroup/sock_release6",	BPF_PROG_TYPE_CGROUP_SOCK,
+						BPF_CGROUP_INET6_SOCK_RELEASE),
 	BPF_APROG_SEC("cgroup/sock",		BPF_PROG_TYPE_CGROUP_SOCK,
 						BPF_CGROUP_INET_SOCK_CREATE),
 	BPF_EAPROG_SEC("cgroup/post_bind4",	BPF_PROG_TYPE_CGROUP_SOCK,
-- 
2.20.1.321.g9e740568ce-goog