1 #ifndef UNBOUND_DNSCRYPT_H 2 #define UNBOUND_DNSCRYPT_H 9 #include "dnscrypt/dnscrypt_config.h" 12 #define DNSCRYPT_MAGIC_HEADER_LEN 8U 13 #define DNSCRYPT_MAGIC_RESPONSE "r6fnvWj8" 15 #ifndef DNSCRYPT_MAX_PADDING 16 # define DNSCRYPT_MAX_PADDING 256U 18 #ifndef DNSCRYPT_BLOCK_SIZE 19 # define DNSCRYPT_BLOCK_SIZE 64U 21 #ifndef DNSCRYPT_MIN_PAD_LEN 22 # define DNSCRYPT_MIN_PAD_LEN 8U 25 #define crypto_box_HALF_NONCEBYTES (crypto_box_NONCEBYTES / 2U) 31 #define DNSCRYPT_QUERY_HEADER_SIZE \ 32 (DNSCRYPT_MAGIC_HEADER_LEN + crypto_box_PUBLICKEYBYTES + crypto_box_HALF_NONCEBYTES + crypto_box_MACBYTES) 33 #define DNSCRYPT_RESPONSE_HEADER_SIZE \ 34 (DNSCRYPT_MAGIC_HEADER_LEN + crypto_box_NONCEBYTES + crypto_box_MACBYTES) 36 #define DNSCRYPT_REPLY_HEADER_SIZE \ 37 (DNSCRYPT_MAGIC_HEADER_LEN + crypto_box_HALF_NONCEBYTES * 2 + crypto_box_MACBYTES) 44 typedef struct KeyPair_ {
45 uint8_t crypt_publickey[crypto_box_PUBLICKEYBYTES];
46 uint8_t crypt_secretkey[crypto_box_SECRETKEYBYTES];
49 typedef struct cert_ {
50 uint8_t magic_query[DNSCRYPT_MAGIC_HEADER_LEN];
59 size_t signed_certs_count;
60 size_t rotated_certs_count;
61 uint8_t provider_publickey[crypto_sign_ed25519_PUBLICKEYBYTES];
62 uint8_t provider_secretkey[crypto_sign_ed25519_SECRETKEYBYTES];
64 size_t keypairs_count;
66 unsigned char hash_key[crypto_shorthash_KEYBYTES];
70 struct slabhash *shared_secrets_cache;
74 size_t num_query_dnscrypt_secret_missed_cache;
81 size_t num_query_dnscrypt_replay;
84 struct dnscrypt_query_header {
85 uint8_t magic_query[DNSCRYPT_MAGIC_HEADER_LEN];
86 uint8_t publickey[crypto_box_PUBLICKEYBYTES];
87 uint8_t nonce[crypto_box_HALF_NONCEBYTES];
88 uint8_t mac[crypto_box_MACBYTES];
96 struct dnsc_env * dnsc_create(
void);
107 int dnsc_apply_cfg(
struct dnsc_env *env,
struct config_file *cfg);
113 void dnsc_delete(
struct dnsc_env *env);
121 int dnsc_handle_curved_request(
struct dnsc_env* dnscenv,
131 int dnsc_handle_uncurved_request(
struct comm_reply *repinfo);
136 size_t dnsc_shared_secrets_sizefunc(
void *k,
void *d);
141 int dnsc_shared_secrets_compfunc(
void *m1,
void *m2);
146 void dnsc_shared_secrets_delkeyfunc(
void *k,
void* arg);
151 void dnsc_shared_secrets_deldatafunc(
void* d,
void* arg);
156 size_t dnsc_nonces_sizefunc(
void *k,
void *d);
161 int dnsc_nonces_compfunc(
void *m1,
void *m2);
166 void dnsc_nonces_delkeyfunc(
void *k,
void* arg);
171 void dnsc_nonces_deldatafunc(
void* d,
void* arg);
std::vector< std::string > keypair
unsigned __int64 uint64_t