The arguments of socket() need to be changed sometimes like the MPTCP
case in the next commits.
It's too late to add the BPF hooks in BPF_CGROUP_RUN_PROG_INET_SOCK()
in inet_create(). So this patch invokes BPF_CGROUP_RUN_PROG_SOCKINIT()
in __socket_create() to change the arguments.
Signed-off-by: Geliang Tang <geliang.tang@xxxxxxxx>
---
net/socket.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/net/socket.c b/net/socket.c
index 2b0e54b2405c..27b423e1800f 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -1469,6 +1469,12 @@ int __sock_create(struct net *net, int family, int type, int protocol,
struct socket *sock;
const struct net_proto_family *pf;
+ if (!kern) {
+ err = BPF_CGROUP_RUN_PROG_SOCKINIT(&family, &type, &protocol);
+ if (err)
+ return err;
+ }
+
/*
* Check protocol is in range
*/
--
2.35.3
