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[GNUnet-SVN] r19553 - gnunet/src/tun
From: |
gnunet |
Subject: |
[GNUnet-SVN] r19553 - gnunet/src/tun |
Date: |
Mon, 30 Jan 2012 23:01:44 +0100 |
Author: grothoff
Date: 2012-01-30 23:01:44 +0100 (Mon, 30 Jan 2012)
New Revision: 19553
Modified:
gnunet/src/tun/tun.c
Log:
-extra size checks
Modified: gnunet/src/tun/tun.c
===================================================================
--- gnunet/src/tun/tun.c 2012-01-30 21:35:45 UTC (rev 19552)
+++ gnunet/src/tun/tun.c 2012-01-30 22:01:44 UTC (rev 19553)
@@ -49,6 +49,7 @@
const struct in_addr *src,
const struct in_addr *dst)
{
+ GNUNET_assert (20 == sizeof (struct GNUNET_TUN_IPv4Header));
GNUNET_assert (payload_length <= UINT16_MAX - sizeof (struct
GNUNET_TUN_IPv4Header));
memset (ip, 0, sizeof (struct GNUNET_TUN_IPv4Header));
ip->header_length = sizeof (struct GNUNET_TUN_IPv4Header) / 4;
@@ -80,6 +81,7 @@
const struct in6_addr *src,
const struct in6_addr *dst)
{
+ GNUNET_assert (40 == sizeof (struct GNUNET_TUN_IPv6Header));
GNUNET_assert (payload_length <= UINT16_MAX - sizeof (struct
GNUNET_TUN_IPv6Header));
memset (ip, 0, sizeof (struct GNUNET_TUN_IPv6Header));
ip->version = 6;
@@ -108,6 +110,7 @@
uint32_t sum;
uint16_t tmp;
+ GNUNET_assert (20 == sizeof (struct GNUNET_TUN_TcpHeader));
GNUNET_assert (payload_length + sizeof (struct GNUNET_TUN_IPv4Header) +
sizeof (struct GNUNET_TUN_TcpHeader) ==
ntohs (ip->total_length));
GNUNET_assert (IPPROTO_TCP == ip->protocol);
@@ -143,6 +146,7 @@
uint32_t sum;
uint32_t tmp;
+ GNUNET_assert (20 == sizeof (struct GNUNET_TUN_TcpHeader));
GNUNET_assert (payload_length + sizeof (struct GNUNET_TUN_TcpHeader) ==
ntohs (ip->payload_length));
GNUNET_assert (IPPROTO_TCP == ip->next_header);
@@ -176,6 +180,7 @@
uint32_t sum;
uint16_t tmp;
+ GNUNET_assert (8 == sizeof (struct GNUNET_TUN_UdpHeader));
GNUNET_assert (payload_length + sizeof (struct GNUNET_TUN_IPv4Header) +
sizeof (struct GNUNET_TUN_UdpHeader) ==
ntohs (ip->total_length));
GNUNET_assert (IPPROTO_UDP == ip->protocol);
@@ -253,6 +258,7 @@
{
uint32_t sum;
+ GNUNET_assert (8 == sizeof (struct GNUNET_TUN_IcmpHeader));
icmp->crc = 0;
sum = GNUNET_CRYPTO_crc16_step (0,
icmp,
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