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authorXin Long <lucien.xin@gmail.com>2021-12-10 13:50:40 -0500
committerDavid S. Miller <davem@davemloft.net>2021-12-13 12:31:36 +0000
commit6180c780e64ceb8dd23345b586dfa70c0a1536ee (patch)
treec1244851cd59e01268ff38aef371f7f2b6646903 /net/tipc
parent3a6c12a0c6c3f857f47efe0e40011360063a35bc (diff)
tipc: discard MSG_CRYPTO msgs when key_exchange_enabled is not set
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> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/tipc')
-rw-r--r--net/tipc/link.c3
1 files changed, 2 insertions, 1 deletions
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;
}