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Diffstat (limited to 'conf.c')
-rw-r--r--conf.c61
1 files changed, 33 insertions, 28 deletions
diff --git a/conf.c b/conf.c
index 7eec313..d4a3e9c 100644
--- a/conf.c
+++ b/conf.c
@@ -410,12 +410,12 @@ static void add_dns_resolv(struct ctx *c, const char *nameserver,
* redirect
*/
if (IN4_IS_ADDR_LOOPBACK(&ns4)) {
- if (c->no_map_gw)
+ if (IN4_IS_ADDR_UNSPECIFIED(&c->ip4.map_host_loopback))
return;
- ns4 = c->ip4.gw;
+ ns4 = c->ip4.map_host_loopback;
if (IN4_IS_ADDR_UNSPECIFIED(&c->ip4.dns_match))
- c->ip4.dns_match = c->ip4.gw;
+ c->ip4.dns_match = c->ip4.map_host_loopback;
}
*idx4 += add_dns4(c, &ns4, *idx4);
@@ -429,13 +429,13 @@ static void add_dns_resolv(struct ctx *c, const char *nameserver,
* redirect
*/
if (IN6_IS_ADDR_LOOPBACK(&ns6)) {
- if (c->no_map_gw)
+ if (IN6_IS_ADDR_UNSPECIFIED(&c->ip6.map_host_loopback))
return;
- ns6 = c->ip6.gw;
+ ns6 = c->ip6.map_host_loopback;
if (IN6_IS_ADDR_UNSPECIFIED(&c->ip6.dns_match))
- c->ip6.dns_match = c->ip6.gw;
+ c->ip6.dns_match = c->ip6.map_host_loopback;
}
*idx6 += add_dns6(c, &ns6, *idx6);
@@ -625,8 +625,9 @@ static unsigned int conf_ip4(unsigned int ifi, struct ip4_ctx *ip4)
return 0;
}
- if (IN4_IS_ADDR_UNSPECIFIED(&ip4->gw)) {
- int rc = nl_route_get_def(nl_sock, ifi, AF_INET, &ip4->gw);
+ if (IN4_IS_ADDR_UNSPECIFIED(&ip4->guest_gw)) {
+ int rc = nl_route_get_def(nl_sock, ifi, AF_INET,
+ &ip4->guest_gw);
if (rc < 0) {
err("Couldn't discover IPv4 gateway address: %s",
strerror(-rc));
@@ -658,7 +659,7 @@ static unsigned int conf_ip4(unsigned int ifi, struct ip4_ctx *ip4)
ip4->addr_seen = ip4->addr;
- ip4->our_tap_addr = ip4->gw;
+ ip4->our_tap_addr = ip4->guest_gw;
if (IN4_IS_ADDR_UNSPECIFIED(&ip4->addr))
return 0;
@@ -686,8 +687,8 @@ static unsigned int conf_ip6(unsigned int ifi, struct ip6_ctx *ip6)
return 0;
}
- if (IN6_IS_ADDR_UNSPECIFIED(&ip6->gw)) {
- rc = nl_route_get_def(nl_sock, ifi, AF_INET6, &ip6->gw);
+ if (IN6_IS_ADDR_UNSPECIFIED(&ip6->guest_gw)) {
+ rc = nl_route_get_def(nl_sock, ifi, AF_INET6, &ip6->guest_gw);
if (rc < 0) {
err("Couldn't discover IPv6 gateway address: %s",
strerror(-rc));
@@ -705,8 +706,8 @@ static unsigned int conf_ip6(unsigned int ifi, struct ip6_ctx *ip6)
ip6->addr_seen = ip6->addr;
- if (IN6_IS_ADDR_LINKLOCAL(&ip6->gw))
- ip6->our_tap_ll = ip6->gw;
+ if (IN6_IS_ADDR_LINKLOCAL(&ip6->guest_gw))
+ ip6->our_tap_ll = ip6->guest_gw;
if (IN6_IS_ADDR_UNSPECIFIED(&ip6->addr) ||
IN6_IS_ADDR_UNSPECIFIED(&ip6->our_tap_ll))
@@ -969,7 +970,8 @@ static void conf_print(const struct ctx *c)
info(" mask: %s",
inet_ntop(AF_INET, &mask, buf4, sizeof(buf4)));
info(" router: %s",
- inet_ntop(AF_INET, &c->ip4.gw, buf4, sizeof(buf4)));
+ inet_ntop(AF_INET, &c->ip4.guest_gw,
+ buf4, sizeof(buf4)));
}
for (i = 0; !IN4_IS_ADDR_UNSPECIFIED(&c->ip4.dns[i]); i++) {
@@ -999,7 +1001,7 @@ static void conf_print(const struct ctx *c)
info(" assign: %s",
inet_ntop(AF_INET6, &c->ip6.addr, buf6, sizeof(buf6)));
info(" router: %s",
- inet_ntop(AF_INET6, &c->ip6.gw, buf6, sizeof(buf6)));
+ inet_ntop(AF_INET6, &c->ip6.guest_gw, buf6, sizeof(buf6)));
info(" our link-local: %s",
inet_ntop(AF_INET6, &c->ip6.our_tap_ll,
buf6, sizeof(buf6)));
@@ -1173,7 +1175,7 @@ fail:
*/
void conf(struct ctx *c, int argc, char **argv)
{
- int netns_only = 0;
+ int netns_only = 0, no_map_gw = 0;
const struct option options[] = {
{"debug", no_argument, NULL, 'd' },
{"quiet", no_argument, NULL, 'q' },
@@ -1202,7 +1204,7 @@ void conf(struct ctx *c, int argc, char **argv)
{"no-dhcpv6", no_argument, &c->no_dhcpv6, 1 },
{"no-ndp", no_argument, &c->no_ndp, 1 },
{"no-ra", no_argument, &c->no_ra, 1 },
- {"no-map-gw", no_argument, &c->no_map_gw, 1 },
+ {"no-map-gw", no_argument, &no_map_gw, 1 },
{"ipv4-only", no_argument, NULL, '4' },
{"ipv6-only", no_argument, NULL, '6' },
{"one-off", no_argument, NULL, '1' },
@@ -1503,18 +1505,18 @@ void conf(struct ctx *c, int argc, char **argv)
parse_mac(c->our_tap_mac, optarg);
break;
case 'g':
- if (inet_pton(AF_INET6, optarg, &c->ip6.gw) &&
- !IN6_IS_ADDR_UNSPECIFIED(&c->ip6.gw) &&
- !IN6_IS_ADDR_LOOPBACK(&c->ip6.gw)) {
+ if (inet_pton(AF_INET6, optarg, &c->ip6.guest_gw) &&
+ !IN6_IS_ADDR_UNSPECIFIED(&c->ip6.guest_gw) &&
+ !IN6_IS_ADDR_LOOPBACK(&c->ip6.guest_gw)) {
if (c->mode == MODE_PASTA)
c->ip6.no_copy_routes = true;
break;
}
- if (inet_pton(AF_INET, optarg, &c->ip4.gw) &&
- !IN4_IS_ADDR_UNSPECIFIED(&c->ip4.gw) &&
- !IN4_IS_ADDR_BROADCAST(&c->ip4.gw) &&
- !IN4_IS_ADDR_LOOPBACK(&c->ip4.gw)) {
+ if (inet_pton(AF_INET, optarg, &c->ip4.guest_gw) &&
+ !IN4_IS_ADDR_UNSPECIFIED(&c->ip4.guest_gw) &&
+ !IN4_IS_ADDR_BROADCAST(&c->ip4.guest_gw) &&
+ !IN4_IS_ADDR_LOOPBACK(&c->ip4.guest_gw)) {
if (c->mode == MODE_PASTA)
c->ip4.no_copy_routes = true;
break;
@@ -1637,11 +1639,14 @@ void conf(struct ctx *c, int argc, char **argv)
(*c->ip6.ifname_out && !c->ifi6))
die("External interface not usable");
- if (c->ifi4 && IN4_IS_ADDR_UNSPECIFIED(&c->ip4.gw))
- c->no_map_gw = c->no_dhcp = 1;
+ if (c->ifi4 && !no_map_gw)
+ c->ip4.map_host_loopback = c->ip4.guest_gw;
- if (c->ifi6 && IN6_IS_ADDR_UNSPECIFIED(&c->ip6.gw))
- c->no_map_gw = 1;
+ if (c->ifi6 && !no_map_gw)
+ c->ip6.map_host_loopback = c->ip6.guest_gw;
+
+ if (c->ifi4 && IN4_IS_ADDR_UNSPECIFIED(&c->ip4.guest_gw))
+ c->no_dhcp = 1;
/* Inbound port options & DNS can be parsed now (after IPv4/IPv6
* settings)
generated by cgit v1.2.3 (git 2.25.1) at 2024-10-19 00:47:57 +0000