map: handle IPv6 extension headers for TCP/UDP
Without this patch offset for TCP/UDP headers was not calculated
correctly if there is one or more IPv6 extension headers.
Type: fix
@@ -345,7 +345,7 @@ map_ip6_to_ip4_tcp_udp (vlib_main_t * vm, vlib_buffer_t * p,
if (l4_protocol == IP_PROTOCOL_TCP)
{
- tcp_header_t *tcp = ip6_next_header (ip6);
+ tcp_header_t *tcp = (tcp_header_t *) u8_ptr_add (ip6, l4_offset);
if (mm->tcp_mss > 0)
{
csum = tcp->checksum;
@@ -356,7 +356,7 @@ map_ip6_to_ip4_tcp_udp (vlib_main_t * vm, vlib_buffer_t * p,
}
else
{
- udp_header_t *udp = ip6_next_header (ip6);
+ udp_header_t *udp = (udp_header_t *) u8_ptr_add (ip6, l4_offset);
checksum = &udp->checksum;
}
