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serve-expired: new feature, support cache serve-expired feature

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This commit is contained in:
Nick Peng
2020-02-15 15:24:03 +08:00
parent 8f40eba083
commit 8990446411
14 changed files with 167 additions and 46 deletions
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11
src/dns_server.c
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@@ -205,6 +205,8 @@ static struct dns_server server;
static tlog_log *dns_audit;
static int _dns_server_prefetch_request(char *domain, dns_type_t qtype);
static int _dns_server_forward_request(unsigned char *inpacket, int inpacket_len)
{
tlog(TLOG_DEBUG, "forward request.\n");
@@ -1617,6 +1619,7 @@ static int dns_server_resolve_callback(char *domain, dns_result_type rtype, unsi
/* Not need to wait check result if only has one ip address */
if (ip_num == 1 && request_wait == 1) {
request->has_ping_result = 1;
_dns_server_request_complete(request);
_dns_server_request_remove(request);
}
@@ -2009,7 +2012,11 @@ static int _dns_server_process_cache(struct dns_request *request)
_dns_reply(request);
}
dns_cache_update(dns_cache);
if (dns_cache_get_ttl(dns_cache) == 0) {
_dns_server_prefetch_request(request->domain, request->qtype);
} else {
dns_cache_update(dns_cache);
}
dns_cache_release(dns_cache);
if (dns_cache_A) {
@@ -3136,7 +3143,7 @@ int dns_server_init(void)
return -1;
}
if (dns_cache_init(dns_conf_cachesize) != 0) {
if (dns_cache_init(dns_conf_cachesize, dns_conf_serve_expired, dns_conf_serve_expired_ttl) != 0) {
tlog(TLOG_ERROR, "init cache failed.");
return -1;
}