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-rw-r--r--udp.c22
1 files changed, 11 insertions, 11 deletions
diff --git a/udp.c b/udp.c
index fca418d..42a17a7 100644
--- a/udp.c
+++ b/udp.c
@@ -678,9 +678,13 @@ static void udp_sock_fill_data_v4(const struct ctx *c, int n,
src_port = ntohs(b->s_in.sin_port);
- if (IN4_IS_ADDR_LOOPBACK(&b->s_in.sin_addr) ||
- IN4_IS_ADDR_UNSPECIFIED(&b->s_in.sin_addr)||
- IN4_ARE_ADDR_EQUAL(&b->s_in.sin_addr, &c->ip4.addr_seen)) {
+ if (!IN4_IS_ADDR_UNSPECIFIED(&c->ip4.dns_fwd) &&
+ IN4_ARE_ADDR_EQUAL(&b->s_in.sin_addr, &c->ip4.dns[0]) &&
+ src_port == 53) {
+ b->iph.saddr = c->ip4.dns_fwd.s_addr;
+ } else if (IN4_IS_ADDR_LOOPBACK(&b->s_in.sin_addr) ||
+ IN4_IS_ADDR_UNSPECIFIED(&b->s_in.sin_addr)||
+ IN4_ARE_ADDR_EQUAL(&b->s_in.sin_addr, &c->ip4.addr_seen)) {
b->iph.saddr = c->ip4.gw.s_addr;
udp_tap_map[V4][src_port].ts = now->tv_sec;
udp_tap_map[V4][src_port].flags |= PORT_LOCAL;
@@ -691,10 +695,6 @@ static void udp_sock_fill_data_v4(const struct ctx *c, int n,
udp_tap_map[V4][src_port].flags |= PORT_LOOPBACK;
bitmap_set(udp_act[V4][UDP_ACT_TAP], src_port);
- } else if (!IN4_IS_ADDR_UNSPECIFIED(&c->ip4.dns_fwd) &&
- IN4_ARE_ADDR_EQUAL(&b->s_in.sin_addr, &c->ip4.dns[0]) &&
- src_port == 53) {
- b->iph.saddr = c->ip4.dns_fwd.s_addr;
} else {
b->iph.saddr = b->s_in.sin_addr.s_addr;
}
@@ -770,6 +770,10 @@ static void udp_sock_fill_data_v6(const struct ctx *c, int n,
if (IN6_IS_ADDR_LINKLOCAL(src)) {
b->ip6h.daddr = c->ip6.addr_ll_seen;
b->ip6h.saddr = b->s_in6.sin6_addr;
+ } else if (!IN6_IS_ADDR_UNSPECIFIED(&c->ip6.dns_fwd) &&
+ IN6_ARE_ADDR_EQUAL(src, &c->ip6.dns[0]) && src_port == 53) {
+ b->ip6h.daddr = c->ip6.addr_seen;
+ b->ip6h.saddr = c->ip6.dns_fwd;
} else if (IN6_IS_ADDR_LOOPBACK(src) ||
IN6_ARE_ADDR_EQUAL(src, &c->ip6.addr_seen) ||
IN6_ARE_ADDR_EQUAL(src, &c->ip6.addr)) {
@@ -794,10 +798,6 @@ static void udp_sock_fill_data_v6(const struct ctx *c, int n,
udp_tap_map[V6][src_port].flags &= ~PORT_GUA;
bitmap_set(udp_act[V6][UDP_ACT_TAP], src_port);
- } else if (!IN6_IS_ADDR_UNSPECIFIED(&c->ip6.dns_fwd) &&
- IN6_ARE_ADDR_EQUAL(src, &c->ip6.dns[0]) && src_port == 53) {
- b->ip6h.daddr = c->ip6.addr_seen;
- b->ip6h.saddr = c->ip6.dns_fwd;
} else {
b->ip6h.daddr = c->ip6.addr_seen;
b->ip6h.saddr = b->s_in6.sin6_addr;