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conf: add config: dualstack-ip-allow-force-AAAA

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This commit is contained in:
Nick Peng
2022-06-28 22:10:42 +08:00
parent 1f07a7ea97
commit e3436263d9
3 changed files with 12 additions and 0 deletions
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9
src/dns_server.c
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@@ -1500,6 +1500,10 @@ static int _dns_server_force_dualstack(struct dns_request *request)
}
}
if (request->qtype == DNS_T_A && dns_conf_dualstack_ip_allow_force_AAAA == 0) {
return -1;
}
/* if ipv4 is fasting than ipv6, add ipv4 to cache, and return SOA for AAAA request */
tlog(TLOG_INFO, "result: %s, qtype: %d, force %s perfered, id: %d, time1: %d, time2: %d", request->domain,
request->qtype, request->qtype == DNS_T_AAAA ? "IPv4" : "IPv6", request->id, request->ping_time,
@@ -3449,6 +3453,10 @@ static int _dns_server_process_cache(struct dns_request *request)
goto out;
}
if (request->qtype == DNS_T_A && dns_conf_dualstack_ip_allow_force_AAAA == 0) {
goto reply_cache;
}
if (request->dualstack_selection) {
int dualstack_qtype;
if (request->qtype == DNS_T_A) {
@@ -3480,6 +3488,7 @@ static int _dns_server_process_cache(struct dns_request *request)
}
}
reply_cache:
if (dns_cache_is_soa(dns_cache)) {
if (dns_cache_get_ttl(dns_cache) > 0) {
ret = _dns_server_process_cache_packet(request, dns_cache);