diff options
Diffstat (limited to 'icmp.c')
| -rw-r--r-- | icmp.c | 24 |
1 files changed, 20 insertions, 4 deletions
@@ -170,8 +170,16 @@ int icmp_tap_handler(const struct ctx *c, int af, const void *addr, iref.icmp.id = id = ntohs(ih->un.echo.id); if ((s = icmp_id_map[V4][id].sock) <= 0) { - s = sock_l4(c, AF_INET, IPPROTO_ICMP, NULL, NULL, id, - iref.u32); + const struct in_addr *bind_addr = NULL; + const char *bind_if; + + bind_if = *c->ip4.ifname_out ? c->ip4.ifname_out : NULL; + + if (!IN4_IS_ADDR_UNSPECIFIED(&c->ip4.addr_out)) + bind_addr = &c->ip4.addr_out; + + s = sock_l4(c, AF_INET, IPPROTO_ICMP, bind_addr, + bind_if, id, iref.u32); if (s < 0) goto fail_sock; if (s > SOCKET_MAX) { @@ -216,8 +224,16 @@ int icmp_tap_handler(const struct ctx *c, int af, const void *addr, iref.icmp.id = id = ntohs(ih->icmp6_identifier); if ((s = icmp_id_map[V6][id].sock) <= 0) { - s = sock_l4(c, AF_INET6, IPPROTO_ICMPV6, NULL, NULL, id, - iref.u32); + const struct in6_addr *bind_addr = NULL; + const char *bind_if; + + bind_if = *c->ip6.ifname_out ? c->ip6.ifname_out : NULL; + + if (!IN6_IS_ADDR_UNSPECIFIED(&c->ip6.addr_out)) + bind_addr = &c->ip6.addr_out; + + s = sock_l4(c, AF_INET6, IPPROTO_ICMPV6, bind_addr, + bind_if, id, iref.u32); if (s < 0) goto fail_sock; if (s > SOCKET_MAX) { |