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better cluster master collision resolution
[l2tpns.git]
/
icmp.c
diff --git
a/icmp.c
b/icmp.c
index
f7d73c6
..
6db1a2c
100644
(file)
--- a/
icmp.c
+++ b/
icmp.c
@@
-1,3
+1,7
@@
+// L2TPNS: icmp
+
+char const *cvs_id_icmp = "$Id: icmp.c,v 1.5 2004-11-16 07:54:32 bodea Exp $";
+
#include <arpa/inet.h>
#include <netdb.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <netdb.h>
#include <netinet/in.h>
@@
-13,7
+17,7
@@
#include "l2tpns.h"
#include "l2tpns.h"
-__u16 _checksum(unsigned char *addr, int count);
+
static
__u16 _checksum(unsigned char *addr, int count);
void host_unreachable(ipt destination, u16 id, ipt source, char *packet, int packet_len)
{
void host_unreachable(ipt destination, u16 id, ipt source, char *packet, int packet_len)
{
@@
-24,8
+28,9
@@
void host_unreachable(ipt destination, u16 id, ipt source, char *packet, int pac
int len = 0, on = 1, icmp_socket;
struct sockaddr_in whereto = {0};
int len = 0, on = 1, icmp_socket;
struct sockaddr_in whereto = {0};
- if (
!(icmp_socket = socket(AF_INET, SOCK_RAW, IPPROTO_RAW))
)
+ if (
(icmp_socket = socket(AF_INET, SOCK_RAW, IPPROTO_RAW)) < 0
)
return;
return;
+
setsockopt(icmp_socket, IPPROTO_IP, IP_HDRINCL, (char *)&on, sizeof(on));
whereto.sin_addr.s_addr = destination;
setsockopt(icmp_socket, IPPROTO_IP, IP_HDRINCL, (char *)&on, sizeof(on));
whereto.sin_addr.s_addr = destination;
@@
-63,7
+68,7
@@
void host_unreachable(ipt destination, u16 id, ipt source, char *packet, int pac
close(icmp_socket);
}
close(icmp_socket);
}
-__u16 _checksum(unsigned char *addr, int count)
+
static
__u16 _checksum(unsigned char *addr, int count)
{
register long sum = 0;
{
register long sum = 0;