netdev - [PATCH bpf-next v7 5/9] libbpf: Add support for cgroup unix socket address hooks

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Date: Tue,  3 Oct 2023 11:30:19 +0200
From: Daan De Meyer <daan.j.demeyer@...il.com>
To: bpf@...r.kernel.org
Cc: Daan De Meyer <daan.j.demeyer@...il.com>,
	martin.lau@...ux.dev,
	kernel-team@...a.com,
	netdev@...r.kernel.org
Subject: [PATCH bpf-next v7 5/9] libbpf: Add support for cgroup unix socket address hooks

Add the necessary plumbing to hook up the new cgroup unix sockaddr
hooks into libbpf.

Signed-off-by: Daan De Meyer <daan.j.demeyer@...il.com>
---
 tools/lib/bpf/libbpf.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/tools/lib/bpf/libbpf.c b/tools/lib/bpf/libbpf.c
index 31b8b252e614..a295f6acf98f 100644
--- a/tools/lib/bpf/libbpf.c
+++ b/tools/lib/bpf/libbpf.c
@@ -82,17 +82,22 @@ static const char * const attach_type_name[] = {
 	[BPF_CGROUP_INET6_BIND]		= "cgroup_inet6_bind",
 	[BPF_CGROUP_INET4_CONNECT]	= "cgroup_inet4_connect",
 	[BPF_CGROUP_INET6_CONNECT]	= "cgroup_inet6_connect",
+	[BPF_CGROUP_UNIX_CONNECT]       = "cgroup_unix_connect",
 	[BPF_CGROUP_INET4_POST_BIND]	= "cgroup_inet4_post_bind",
 	[BPF_CGROUP_INET6_POST_BIND]	= "cgroup_inet6_post_bind",
 	[BPF_CGROUP_INET4_GETPEERNAME]	= "cgroup_inet4_getpeername",
 	[BPF_CGROUP_INET6_GETPEERNAME]	= "cgroup_inet6_getpeername",
+	[BPF_CGROUP_UNIX_GETPEERNAME]	= "cgroup_unix_getpeername",
 	[BPF_CGROUP_INET4_GETSOCKNAME]	= "cgroup_inet4_getsockname",
 	[BPF_CGROUP_INET6_GETSOCKNAME]	= "cgroup_inet6_getsockname",
+	[BPF_CGROUP_UNIX_GETSOCKNAME]	= "cgroup_unix_getsockname",
 	[BPF_CGROUP_UDP4_SENDMSG]	= "cgroup_udp4_sendmsg",
 	[BPF_CGROUP_UDP6_SENDMSG]	= "cgroup_udp6_sendmsg",
+	[BPF_CGROUP_UNIX_SENDMSG]	= "cgroup_unix_sendmsg",
 	[BPF_CGROUP_SYSCTL]		= "cgroup_sysctl",
 	[BPF_CGROUP_UDP4_RECVMSG]	= "cgroup_udp4_recvmsg",
 	[BPF_CGROUP_UDP6_RECVMSG]	= "cgroup_udp6_recvmsg",
+	[BPF_CGROUP_UNIX_RECVMSG]	= "cgroup_unix_recvmsg",
 	[BPF_CGROUP_GETSOCKOPT]		= "cgroup_getsockopt",
 	[BPF_CGROUP_SETSOCKOPT]		= "cgroup_setsockopt",
 	[BPF_SK_SKB_STREAM_PARSER]	= "sk_skb_stream_parser",
@@ -8960,14 +8965,19 @@ static const struct bpf_sec_def section_defs[] = {
 	SEC_DEF("cgroup/bind6",		CGROUP_SOCK_ADDR, BPF_CGROUP_INET6_BIND, SEC_ATTACHABLE),
 	SEC_DEF("cgroup/connect4",	CGROUP_SOCK_ADDR, BPF_CGROUP_INET4_CONNECT, SEC_ATTACHABLE),
 	SEC_DEF("cgroup/connect6",	CGROUP_SOCK_ADDR, BPF_CGROUP_INET6_CONNECT, SEC_ATTACHABLE),
+	SEC_DEF("cgroup/connect_unix",	CGROUP_SOCK_ADDR, BPF_CGROUP_UNIX_CONNECT, SEC_ATTACHABLE),
 	SEC_DEF("cgroup/sendmsg4",	CGROUP_SOCK_ADDR, BPF_CGROUP_UDP4_SENDMSG, SEC_ATTACHABLE),
 	SEC_DEF("cgroup/sendmsg6",	CGROUP_SOCK_ADDR, BPF_CGROUP_UDP6_SENDMSG, SEC_ATTACHABLE),
+	SEC_DEF("cgroup/sendmsg_unix",	CGROUP_SOCK_ADDR, BPF_CGROUP_UNIX_SENDMSG, SEC_ATTACHABLE),
 	SEC_DEF("cgroup/recvmsg4",	CGROUP_SOCK_ADDR, BPF_CGROUP_UDP4_RECVMSG, SEC_ATTACHABLE),
 	SEC_DEF("cgroup/recvmsg6",	CGROUP_SOCK_ADDR, BPF_CGROUP_UDP6_RECVMSG, SEC_ATTACHABLE),
+	SEC_DEF("cgroup/recvmsg_unix",	CGROUP_SOCK_ADDR, BPF_CGROUP_UNIX_RECVMSG, SEC_ATTACHABLE),
 	SEC_DEF("cgroup/getpeername4",	CGROUP_SOCK_ADDR, BPF_CGROUP_INET4_GETPEERNAME, SEC_ATTACHABLE),
 	SEC_DEF("cgroup/getpeername6",	CGROUP_SOCK_ADDR, BPF_CGROUP_INET6_GETPEERNAME, SEC_ATTACHABLE),
+	SEC_DEF("cgroup/getpeername_unix", CGROUP_SOCK_ADDR, BPF_CGROUP_UNIX_GETPEERNAME, SEC_ATTACHABLE),
 	SEC_DEF("cgroup/getsockname4",	CGROUP_SOCK_ADDR, BPF_CGROUP_INET4_GETSOCKNAME, SEC_ATTACHABLE),
 	SEC_DEF("cgroup/getsockname6",	CGROUP_SOCK_ADDR, BPF_CGROUP_INET6_GETSOCKNAME, SEC_ATTACHABLE),
+	SEC_DEF("cgroup/getsockname_unix", CGROUP_SOCK_ADDR, BPF_CGROUP_UNIX_GETSOCKNAME, SEC_ATTACHABLE),
 	SEC_DEF("cgroup/sysctl",	CGROUP_SYSCTL, BPF_CGROUP_SYSCTL, SEC_ATTACHABLE),
 	SEC_DEF("cgroup/getsockopt",	CGROUP_SOCKOPT, BPF_CGROUP_GETSOCKOPT, SEC_ATTACHABLE),
 	SEC_DEF("cgroup/setsockopt",	CGROUP_SOCKOPT, BPF_CGROUP_SETSOCKOPT, SEC_ATTACHABLE),
-- 
2.41.0