diff options
Diffstat (limited to 'conf.c')
| -rw-r--r-- | conf.c | 16 |
1 files changed, 16 insertions, 0 deletions
@@ -829,6 +829,9 @@ static void usage(const char *name, FILE *f, int status) " --dns-forward ADDR Forward DNS queries sent to ADDR\n" " can be specified zero to two times (for IPv4 and IPv6)\n" " default: don't forward DNS queries\n" + " --dns-host ADDR Host nameserver to direct queries to\n" + " can be specified zero to two times (for IPv4 and IPv6)\n" + " default: first nameserver from host's /etc/resolv.conf\n" " --no-tcp Disable TCP protocol handler\n" " --no-udp Disable UDP protocol handler\n" " --no-icmp Disable ICMP/ICMPv6 protocol handler\n" @@ -1286,6 +1289,7 @@ void conf(struct ctx *c, int argc, char **argv) {"netns-only", no_argument, NULL, 20 }, {"map-host-loopback", required_argument, NULL, 21 }, {"map-guest-addr", required_argument, NULL, 22 }, + {"dns-host", required_argument, NULL, 24 }, { 0 }, }; const char *logname = (c->mode == MODE_PASTA) ? "pasta" : "passt"; @@ -1463,6 +1467,18 @@ void conf(struct ctx *c, int argc, char **argv) conf_nat(optarg, &c->ip4.map_guest_addr, &c->ip6.map_guest_addr, NULL); break; + case 24: + if (inet_pton(AF_INET6, optarg, &c->ip6.dns_host) && + !IN6_IS_ADDR_UNSPECIFIED(&c->ip6.dns_host)) + break; + + if (inet_pton(AF_INET, optarg, &c->ip4.dns_host) && + !IN4_IS_ADDR_UNSPECIFIED(&c->ip4.dns_host) && + !IN4_IS_ADDR_BROADCAST(&c->ip4.dns_host)) + break; + + die("Invalid host nameserver address: %s", optarg); + break; case 'd': c->debug = 1; c->quiet = 0; |