| yuezonghe | 824eb0c | 2024-06-27 02:32:26 -0700 | [diff] [blame^] | 1 | /* |
| 2 | * TLSv1 client - internal structures |
| 3 | * Copyright (c) 2006-2011, Jouni Malinen <j@w1.fi> |
| 4 | * |
| 5 | * This software may be distributed under the terms of the BSD license. |
| 6 | * See README for more details. |
| 7 | */ |
| 8 | |
| 9 | #ifndef TLSV1_CLIENT_I_H |
| 10 | #define TLSV1_CLIENT_I_H |
| 11 | |
| 12 | struct tlsv1_client { |
| 13 | enum { |
| 14 | CLIENT_HELLO, SERVER_HELLO, SERVER_CERTIFICATE, |
| 15 | SERVER_KEY_EXCHANGE, SERVER_CERTIFICATE_REQUEST, |
| 16 | SERVER_HELLO_DONE, CLIENT_KEY_EXCHANGE, CHANGE_CIPHER_SPEC, |
| 17 | SERVER_CHANGE_CIPHER_SPEC, SERVER_FINISHED, ACK_FINISHED, |
| 18 | ESTABLISHED, FAILED |
| 19 | } state; |
| 20 | |
| 21 | struct tlsv1_record_layer rl; |
| 22 | |
| 23 | u8 session_id[TLS_SESSION_ID_MAX_LEN]; |
| 24 | size_t session_id_len; |
| 25 | u8 client_random[TLS_RANDOM_LEN]; |
| 26 | u8 server_random[TLS_RANDOM_LEN]; |
| 27 | u8 master_secret[TLS_MASTER_SECRET_LEN]; |
| 28 | |
| 29 | u8 alert_level; |
| 30 | u8 alert_description; |
| 31 | |
| 32 | unsigned int flags; /* TLS_CONN_* bitfield */ |
| 33 | |
| 34 | unsigned int certificate_requested:1; |
| 35 | unsigned int session_resumed:1; |
| 36 | unsigned int session_ticket_included:1; |
| 37 | unsigned int use_session_ticket:1; |
| 38 | unsigned int cert_in_cb:1; |
| 39 | unsigned int ocsp_resp_received:1; |
| 40 | |
| 41 | struct crypto_public_key *server_rsa_key; |
| 42 | |
| 43 | struct tls_verify_hash verify; |
| 44 | |
| 45 | #define MAX_CIPHER_COUNT 30 |
| 46 | u16 cipher_suites[MAX_CIPHER_COUNT]; |
| 47 | size_t num_cipher_suites; |
| 48 | |
| 49 | u16 prev_cipher_suite; |
| 50 | |
| 51 | u8 *client_hello_ext; |
| 52 | size_t client_hello_ext_len; |
| 53 | |
| 54 | /* The prime modulus used for Diffie-Hellman */ |
| 55 | u8 *dh_p; |
| 56 | size_t dh_p_len; |
| 57 | /* The generator used for Diffie-Hellman */ |
| 58 | u8 *dh_g; |
| 59 | size_t dh_g_len; |
| 60 | /* The server's Diffie-Hellman public value */ |
| 61 | u8 *dh_ys; |
| 62 | size_t dh_ys_len; |
| 63 | |
| 64 | struct tlsv1_credentials *cred; |
| 65 | |
| 66 | tlsv1_client_session_ticket_cb session_ticket_cb; |
| 67 | void *session_ticket_cb_ctx; |
| 68 | |
| 69 | struct wpabuf *partial_input; |
| 70 | |
| 71 | void (*event_cb)(void *ctx, enum tls_event ev, |
| 72 | union tls_event_data *data); |
| 73 | void *cb_ctx; |
| 74 | |
| 75 | struct x509_certificate *server_cert; |
| 76 | }; |
| 77 | |
| 78 | |
| 79 | void tls_alert(struct tlsv1_client *conn, u8 level, u8 description); |
| 80 | void tlsv1_client_free_dh(struct tlsv1_client *conn); |
| 81 | u16 tls_client_highest_ver(struct tlsv1_client *conn); |
| 82 | int tls_derive_pre_master_secret(struct tlsv1_client *conn, |
| 83 | u8 *pre_master_secret); |
| 84 | int tls_derive_keys(struct tlsv1_client *conn, |
| 85 | const u8 *pre_master_secret, size_t pre_master_secret_len); |
| 86 | u8 * tls_send_client_hello(struct tlsv1_client *conn, size_t *out_len); |
| 87 | u8 * tlsv1_client_send_alert(struct tlsv1_client *conn, u8 level, |
| 88 | u8 description, size_t *out_len); |
| 89 | u8 * tlsv1_client_handshake_write(struct tlsv1_client *conn, size_t *out_len, |
| 90 | int no_appl_data); |
| 91 | int tlsv1_client_process_handshake(struct tlsv1_client *conn, u8 ct, |
| 92 | const u8 *buf, size_t *len, |
| 93 | u8 **out_data, size_t *out_len); |
| 94 | |
| 95 | enum tls_ocsp_result { |
| 96 | TLS_OCSP_NO_RESPONSE, TLS_OCSP_INVALID, TLS_OCSP_GOOD, TLS_OCSP_REVOKED |
| 97 | }; |
| 98 | |
| 99 | enum tls_ocsp_result tls_process_ocsp_response(struct tlsv1_client *conn, |
| 100 | const u8 *resp, size_t len); |
| 101 | |
| 102 | #endif /* TLSV1_CLIENT_I_H */ |