fix checksum recalc

diff --git a/l2tpns.c b/l2tpns.c
index 0d9a2c2..6effc9f 100644 (file)
--- a/l2tpns.c
+++ b/l2tpns.c
@@ -4,7 +4,7 @@
 // Copyright (c) 2002 FireBrick (Andrews & Arnold Ltd / Watchfront Ltd) - GPL licenced
 // vim: sw=8 ts=8
 
 // Copyright (c) 2002 FireBrick (Andrews & Arnold Ltd / Watchfront Ltd) - GPL licenced
 // vim: sw=8 ts=8
 

-char const *cvs_id_l2tpns = "$Id: l2tpns.c,v 1.148 2005/11/14 21:08:30 bodea Exp $";
+char const *cvs_id_l2tpns = "$Id: l2tpns.c,v 1.149 2005/11/17 06:46:24 bodea Exp $";

 
 #include <arpa/inet.h>
 #include <assert.h>
 
 #include <arpa/inet.h>
 #include <assert.h>


@@ -1043,7 +1043,7 @@ void adjust_tcp_mss(sessionidt s, tunnelidt t, uint8_t *buf, int len, uint8_t *t
        sum = orig + (~MSS & 0xffff);
        sum += ntohs(*(uint16_t *) (tcp + 16));
        sum = (sum & 0xffff) + (sum >> 16);
        sum = orig + (~MSS & 0xffff);
        sum += ntohs(*(uint16_t *) (tcp + 16));
        sum = (sum & 0xffff) + (sum >> 16);

-       *(uint16_t *) (tcp + 16) = htons(sum);
+       *(uint16_t *) (tcp + 16) = htons(sum + (sum >> 16));

 }
 
 // process outgoing (to tunnel) IP
 }
 
 // process outgoing (to tunnel) IP


@@ -1170,7 +1170,8 @@ static void processipout(uint8_t *buf, int len)
                        master_throttle_packet(sp->tbf_out, data, size);
                return;
        }
                        master_throttle_packet(sp->tbf_out, data, size);
                return;
        }

-       else if (sp->walled_garden && !config->cluster_iam_master)
+
+       if (sp->walled_garden && !config->cluster_iam_master)

        {
                // We are walled-gardening this
                master_garden_packet(s, data, size);
        {
                // We are walled-gardening this
                master_garden_packet(s, data, size);