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Set TTL on outbound ICMP echo reply packets to make Windows tracert work

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This commit is contained in:
adamdunkels 2008-02-07 01:34:25 +00:00
parent 245558fd56
commit d407fe2e9f
1 changed files with 7 additions and 6 deletions
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13
core/net/uip.c
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@ -41,7 +41,7 @@
*
* This file is part of the uIP TCP/IP stack.
*
* $Id: uip.c,v 1.10 2008/01/24 23:08:58 adamdunkels Exp $
* $Id: uip.c,v 1.11 2008/02/07 01:34:25 adamdunkels Exp $
*
*/
@ -107,7 +107,7 @@ const uip_ipaddr_t uip_broadcast_addr =
#else /* UIP_CONF_IPV6 */
{ { 0xff, 0xff, 0xff, 0xff } };
#endif /* UIP_CONF_IPV6 */
const uip_ipaddr_t all_zeroes_addr = { { 0x0, /* rest is 0 */ } };
const uip_ipaddr_t uip_all_zeroes_addr = { { 0x0, /* rest is 0 */ } };
#if UIP_FIXEDETHADDR
const struct uip_eth_addr uip_ethaddr = {{UIP_ETHADDR0,
@ -877,7 +877,7 @@ uip_process(u8_t flag)
}
#endif /* UIP_CONF_IPV6 */
if(uip_ipaddr_cmp(&uip_hostaddr, &all_zeroes_addr)) {
if(uip_ipaddr_cmp(&uip_hostaddr, &uip_all_zeroes_addr)) {
/* If we are configured to use ping IP address configuration and
hasn't been assigned an IP address yet, we accept all ICMP
packets. */
@ -975,7 +975,7 @@ uip_process(u8_t flag)
the destination IP address of this ping packet and assign it to
ourself. */
#if UIP_PINGADDRCONF
if(uip_ipaddr_cmp(&uip_hostaddr, &all_zeroes_addr)) {
if(uip_ipaddr_cmp(&uip_hostaddr, &uip_all_zeroes_addr)) {
uip_hostaddr = BUF->destipaddr;
}
#endif /* UIP_PINGADDRCONF */
@ -993,7 +993,8 @@ uip_process(u8_t flag)
uip_ipaddr_copy(&BUF->srcipaddr, &uip_hostaddr);
UIP_STAT(++uip_stat.icmp.sent);
goto send;
BUF->ttl = UIP_TTL;
goto ip_send_nolen;
/* End of IPv4 input header processing code. */
#else /* !UIP_CONF_IPV6 */
@ -1100,7 +1101,7 @@ uip_process(u8_t flag)
UDPBUF->destport == uip_udp_conn->lport &&
(uip_udp_conn->rport == 0 ||
UDPBUF->srcport == uip_udp_conn->rport) &&
(uip_ipaddr_cmp(&uip_udp_conn->ripaddr, &all_zeroes_addr) ||
(uip_ipaddr_cmp(&uip_udp_conn->ripaddr, &uip_all_zeroes_addr) ||
uip_ipaddr_cmp(&uip_udp_conn->ripaddr, &uip_broadcast_addr) ||
uip_ipaddr_cmp(&BUF->srcipaddr, &uip_udp_conn->ripaddr))) {
goto udp_found;