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dualstack: cache SOA record for speed.

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This commit is contained in:
Nick Peng
2021-01-24 14:16:35 +08:00
parent 51e1e6565f
commit 11cf7b614c
3 changed files with 119 additions and 46 deletions
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13
src/dns_cache.h
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@@ -63,6 +63,7 @@ struct dns_cache_addr {
struct dns_cache_addr_data {
unsigned int cname_ttl;
char cname[DNS_MAX_CNAME_LEN];
char soa;
union {
unsigned char ipv4_addr[DNS_RR_A_LEN];
unsigned char ipv6_addr[DNS_RR_AAAA_LEN];
@@ -116,9 +117,6 @@ uint32_t dns_cache_get_cache_flag(struct dns_cache_data *cache_data);
void dns_cache_data_free(struct dns_cache_data *data);
struct dns_cache_data *dns_cache_new_data_addr(uint32_t cache_flag, char *cname, int cname_ttl, unsigned char *addr,
int addr_len);
struct dns_cache_data *dns_cache_new_data_packet(uint32_t cache_flag, void *packet, size_t packet_len);
int dns_cache_init(int size, int enable_inactive, int inactive_list_expired);
@@ -145,8 +143,17 @@ void dns_cache_invalidate(dns_cache_preinvalid_callback callback, int ttl_pre);
int dns_cache_get_ttl(struct dns_cache *dns_cache);
int dns_cache_is_soa(struct dns_cache *dns_cache);
struct dns_cache_data *dns_cache_new_data(void);
struct dns_cache_data *dns_cache_get_data(struct dns_cache *dns_cache);
void dns_cache_set_data_addr(struct dns_cache_data *dns_cache, uint32_t cache_flag, char *cname, int cname_ttl,
unsigned char *addr, int addr_len);
void dns_cache_set_data_soa(struct dns_cache_data *dns_cache, int32_t cache_flag, char *cname, int cname_ttl);
void dns_cache_destroy(void);
int dns_cache_load(const char *file);