diff options
| -rw-r--r-- | src/router.c | 23 |
1 files changed, 10 insertions, 13 deletions
diff --git a/src/router.c b/src/router.c index c02d675..f45ecab 100644 --- a/src/router.c +++ b/src/router.c @@ -424,11 +424,17 @@ static uint64_t send_router_advert(struct interface *iface, const struct in6_add default_route = true; } + /* DNS Recursive DNS */ + struct in6_addr dns_pref, *dns_addr = NULL; + size_t dns_cnt = 0; - struct in6_addr dns_pref, *dns_addr = &dns_pref; - size_t dns_cnt = 1; - - odhcpd_get_interface_dns_addr(iface, &dns_pref); + if (iface->dns_cnt > 0) { + dns_addr = iface->dns; + dns_cnt = iface->dns_cnt; + } else if (!odhcpd_get_interface_dns_addr(iface, &dns_pref)) { + dns_addr = &dns_pref; + dns_cnt = 1; + } /* Construct Prefix Information options */ size_t pfxs_cnt = 0; @@ -526,15 +532,6 @@ static uint64_t send_router_advert(struct interface *iface, const struct in6_add syslog(LOG_INFO, "Using a RA lifetime of %d seconds on %s", ntohs(adv.h.nd_ra_router_lifetime), iface->ifname); - /* DNS Recursive DNS */ - if (iface->dns_cnt > 0) { - dns_addr = iface->dns; - dns_cnt = iface->dns_cnt; - } - - if (!dns_addr || IN6_IS_ADDR_UNSPECIFIED(dns_addr)) - dns_cnt = 0; - struct { uint8_t type; uint8_t len; |