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Support DNS Over HTTPS

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This commit is contained in:
Nick Peng
2019-03-30 20:10:27 +08:00
parent 5501bfb6a3
commit 2d01ed8a04
21 changed files with 1264 additions and 88 deletions
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34
src/dns_client.h
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@@ -2,6 +2,7 @@
#define _SMART_DNS_CLIENT_H
#include "dns.h"
#define DNS_SERVER_SPKI_LEN 64
#define DNS_SERVER_GROUP_DEFAULT "default"
typedef enum {
@@ -35,8 +36,39 @@ int dns_client_query(char *domain, int qtype, dns_client_callback callback, void
void dns_client_exit(void);
struct client_dns_server_flag_udp {
int ttl;
};
struct client_dns_server_flag_tls {
char spki[DNS_SERVER_SPKI_LEN];
int spi_len;
char host[DNS_MAX_CNAME_LEN];
};
struct client_dns_server_flag_https {
char spki[DNS_SERVER_SPKI_LEN];
int spi_len;
char host[DNS_MAX_CNAME_LEN];
char path[DNS_MAX_CNAME_LEN];
};
struct client_dns_server_flags {
dns_server_type_t type;
unsigned int server_flag;
unsigned int result_flag;
union {
struct client_dns_server_flag_udp udp;
struct client_dns_server_flag_tls tls;
struct client_dns_server_flag_https https;
};
};
int dns_client_spki_decode(const char *spki, unsigned char *spki_data_out);
/* add remote dns server */
int dns_client_add_server(char *server_ip, int port, dns_server_type_t server_type, unsigned int server_flag, unsigned int result_flag, int ttl, char *spki);
int dns_client_add_server(char *server_ip, int port, dns_server_type_t server_type, struct client_dns_server_flags *flags);
/* remove remote dns server */
int dns_client_remove_server(char *server_ip, int port, dns_server_type_t server_type);