Thread (2 messages) 2 messages, 2 authors, 2006-08-02

Re: [PATCH 14/23] [PATCH] [XFRM]: Restrict authentication algorithm only when inbound transformation protocol is IPsec.

From: David Miller <davem@davemloft.net>
Date: 2006-08-02 00:18:28

From: Masahide NAKAMURA <redacted>
Date: Sat, 29 Jul 2006 18:30:38 +0900
-		(tmpl->aalgos & (1<<x->props.aalgo)) &&
+		((tmpl->aalgos & (1<<x->props.aalgo)) ||
+		 !(xfrm_id_proto_match(tmpl->id.proto, IPSEC_PROTO_ANY))) &&
This is another instance of a xfrm_id_proto_match() call
which will always evaluate to true, because the userproto
argument is IPSEC_PROTO_ANY.

+static inline int xfrm_id_proto_match(u8 proto, u8 userproto)
+{
+	return (userproto == IPSEC_PROTO_ANY || proto == userproto);
+}

Can you elaborate on how this is supposed to work?  It does not
seem intentional that all of these calls will always evaluate
to true.
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