[PATCH net-next] tipc: discard MSG_CRYPTO msgs when key_exchange_enabled is not set
STALE1758d
REVIEWED: 1 (1M)
From: Xin Long <lucien.xin@gmail.com>
Date: 2021-12-10 18:50:44
Subsystem:
networking [general], the rest, tipc network layer · Maintainers:
"David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds, Jon Maloy, Tung Quang Nguyen
1 review trailer (1 from subsystem maintainers).
When key_exchange is disabled, there is no reason to accept MSG_CRYPTO msgs if it doesn't send MSG_CRYPTO msgs. Signed-off-by: Xin Long <lucien.xin@gmail.com> Acked-by: Jon Maloy <jmaloy@redhat.com> --- net/tipc/link.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/net/tipc/link.c b/net/tipc/link.c
index 09ae8448f394..8d9e09f48f4c 100644
--- a/net/tipc/link.c
+++ b/net/tipc/link.c@@ -1298,7 +1298,8 @@ static bool tipc_data_input(struct tipc_link *l, struct sk_buff *skb, return false; #ifdef CONFIG_TIPC_CRYPTO case MSG_CRYPTO: - if (TIPC_SKB_CB(skb)->decrypted) { + if (sysctl_tipc_key_exchange_enabled && + TIPC_SKB_CB(skb)->decrypted) { tipc_crypto_msg_rcv(l->net, skb); return true; }
--
2.27.0