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authorMichal Luczaj <mhal@rbox.co>2024-10-13 18:26:39 +0200
committerDaniel Borkmann <daniel@iogearbox.net>2024-10-17 13:02:54 +0200
commit9c5bd93edf7b8834aecaa7c340b852d5990d7c78 (patch)
treebe4c3e2466140f00e09796450377d10a6439f043 /include
parentselftests/bpf: Add asserts for netfilter link info (diff)
downloadlinux-9c5bd93edf7b8834aecaa7c340b852d5990d7c78.tar.xz
linux-9c5bd93edf7b8834aecaa7c340b852d5990d7c78.zip
bpf, sockmap: SK_DROP on attempted redirects of unsupported af_vsock
Don't mislead the callers of bpf_{sk,msg}_redirect_{map,hash}(): make sure to immediately and visibly fail the forwarding of unsupported af_vsock packets. Fixes: 634f1a7110b4 ("vsock: support sockmap") Signed-off-by: Michal Luczaj <mhal@rbox.co> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: John Fastabend <john.fastabend@gmail.com> Link: https://lore.kernel.org/bpf/20241013-vsock-fixes-for-redir-v2-1-d6577bbfe742@rbox.co
Diffstat (limited to 'include')
-rw-r--r--include/net/sock.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/include/net/sock.h b/include/net/sock.h
index c58ca8dd561b..c87295f3476d 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -2715,6 +2715,11 @@ static inline bool sk_is_stream_unix(const struct sock *sk)
return sk->sk_family == AF_UNIX && sk->sk_type == SOCK_STREAM;
}
+static inline bool sk_is_vsock(const struct sock *sk)
+{
+ return sk->sk_family == AF_VSOCK;
+}
+
/**
* sk_eat_skb - Release a skb if it is no longer needed
* @sk: socket to eat this skb from