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[GNUnet-SVN] r19539 - gnunet/src/tun
From: |
gnunet |
Subject: |
[GNUnet-SVN] r19539 - gnunet/src/tun |
Date: |
Mon, 30 Jan 2012 15:20:37 +0100 |
Author: grothoff
Date: 2012-01-30 15:20:37 +0100 (Mon, 30 Jan 2012)
New Revision: 19539
Modified:
gnunet/src/tun/tun.c
Log:
-possible fix for 2124
Modified: gnunet/src/tun/tun.c
===================================================================
--- gnunet/src/tun/tun.c 2012-01-30 13:32:03 UTC (rev 19538)
+++ gnunet/src/tun/tun.c 2012-01-30 14:20:37 UTC (rev 19539)
@@ -106,7 +106,7 @@
uint16_t payload_length)
{
uint32_t sum;
- uint32_t tmp;
+ uint16_t tmp;
GNUNET_assert (payload_length + sizeof (struct GNUNET_TUN_IPv4Header) +
sizeof (struct GNUNET_TUN_TcpHeader) ==
ntohs (ip->total_length));
@@ -116,8 +116,10 @@
sum = GNUNET_CRYPTO_crc16_step (0,
&ip->source_address,
sizeof (struct in_addr) * 2);
- tmp = htonl ((IPPROTO_TCP << 16) | (payload_length + sizeof (struct
GNUNET_TUN_TcpHeader)));
- sum = GNUNET_CRYPTO_crc16_step (sum, &tmp, sizeof (uint32_t));
+ tmp = htons (IPPROTO_TCP);
+ sum = GNUNET_CRYPTO_crc16_step (sum, &tmp, sizeof (uint16_t));
+ tmp = htons (payload_length + sizeof (struct GNUNET_TUN_TcpHeader));
+ sum = GNUNET_CRYPTO_crc16_step (sum, &tmp, sizeof (uint16_t));
sum = GNUNET_CRYPTO_crc16_step (sum, tcp, sizeof (struct
GNUNET_TUN_TcpHeader));
sum = GNUNET_CRYPTO_crc16_step (sum, payload, payload_length);
tcp->crc = GNUNET_CRYPTO_crc16_finish (sum);
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