[PATCH v2 3/3] Do not drop vpn connection if packet arrived is larger than MTU

[Nikolay Martynov]

Sometimes server sends us packets that are larger than negotiated MTU.
Current implementation bails out in this case.
This patch makes openconnect to send such packets up the stack and continue.
It looks like data stream from VPN server is generally correct - with
exception of packet being too large, so we can continue parsing further
packets.

This improves connection stability.

Signed-off-by: Nikolay Martynov <mar.kolya at gmail.com>
---
 oncp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/oncp.c b/oncp.c
index 3c7cfa1..40ac1de 100644
--- a/oncp.c
+++ b/oncp.c
@@ -1011,7 +1011,7 @@ int oncp_mainloop(struct openconnect_info *vpninfo, int *timeout)
 				goto unknown_pkt;
 			}
 
-			if (!iplen || iplen > vpninfo->ip_info.mtu || iplen > kmplen)
+			if (!iplen || iplen > kmplen)
 				goto badiplen;
 
 			if (iplen > vpninfo->cstp_pkt->len - 20)
-- 
2.11.0