tlsv1_client_i.h

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00001 
00016 #ifndef TLSV1_CLIENT_I_H
00017 #define TLSV1_CLIENT_I_H
00018 
00019 struct tlsv1_client {
00020         enum {
00021                 CLIENT_HELLO, SERVER_HELLO, SERVER_CERTIFICATE,
00022                 SERVER_KEY_EXCHANGE, SERVER_CERTIFICATE_REQUEST,
00023                 SERVER_HELLO_DONE, CLIENT_KEY_EXCHANGE, CHANGE_CIPHER_SPEC,
00024                 SERVER_CHANGE_CIPHER_SPEC, SERVER_FINISHED, ACK_FINISHED,
00025                 ESTABLISHED, FAILED
00026         } state;
00027 
00028         struct tlsv1_record_layer rl;
00029 
00030         u8 session_id[TLS_SESSION_ID_MAX_LEN];
00031         size_t session_id_len;
00032         u8 client_random[TLS_RANDOM_LEN];
00033         u8 server_random[TLS_RANDOM_LEN];
00034         u8 master_secret[TLS_MASTER_SECRET_LEN];
00035 
00036         u8 alert_level;
00037         u8 alert_description;
00038 
00039         unsigned int certificate_requested:1;
00040         unsigned int session_resumed:1;
00041         unsigned int session_ticket_included:1;
00042         unsigned int use_session_ticket:1;
00043 
00044         struct crypto_public_key *server_rsa_key;
00045 
00046         struct tls_verify_hash verify;
00047 
00048 #define MAX_CIPHER_COUNT 30
00049         u16 cipher_suites[MAX_CIPHER_COUNT];
00050         size_t num_cipher_suites;
00051 
00052         u16 prev_cipher_suite;
00053 
00054         u8 *client_hello_ext;
00055         size_t client_hello_ext_len;
00056 
00057         /* The prime modulus used for Diffie-Hellman */
00058         u8 *dh_p;
00059         size_t dh_p_len;
00060         /* The generator used for Diffie-Hellman */
00061         u8 *dh_g;
00062         size_t dh_g_len;
00063         /* The server's Diffie-Hellman public value */
00064         u8 *dh_ys;
00065         size_t dh_ys_len;
00066 
00067         struct tlsv1_credentials *cred;
00068 
00069         tlsv1_client_session_ticket_cb session_ticket_cb;
00070         void *session_ticket_cb_ctx;
00071 };
00072 
00073 
00074 void tls_alert(struct tlsv1_client *conn, u8 level, u8 description);
00075 void tlsv1_client_free_dh(struct tlsv1_client *conn);
00076 int tls_derive_pre_master_secret(u8 *pre_master_secret);
00077 int tls_derive_keys(struct tlsv1_client *conn,
00078                     const u8 *pre_master_secret, size_t pre_master_secret_len);
00079 u8 * tls_send_client_hello(struct tlsv1_client *conn, size_t *out_len);
00080 u8 * tlsv1_client_send_alert(struct tlsv1_client *conn, u8 level,
00081                              u8 description, size_t *out_len);
00082 u8 * tlsv1_client_handshake_write(struct tlsv1_client *conn, size_t *out_len,
00083                                   int no_appl_data);
00084 int tlsv1_client_process_handshake(struct tlsv1_client *conn, u8 ct,
00085                                    const u8 *buf, size_t *len,
00086                                    u8 **out_data, size_t *out_len);
00087 
00088 #endif /* TLSV1_CLIENT_I_H */
00089