diff options
Diffstat (limited to 'openssl-1.1.0h/ssl/statem/statem_locl.h')
| -rw-r--r-- | openssl-1.1.0h/ssl/statem/statem_locl.h | 125 |
1 files changed, 125 insertions, 0 deletions
diff --git a/openssl-1.1.0h/ssl/statem/statem_locl.h b/openssl-1.1.0h/ssl/statem/statem_locl.h new file mode 100644 index 0000000..5dbc62b --- /dev/null +++ b/openssl-1.1.0h/ssl/statem/statem_locl.h @@ -0,0 +1,125 @@ +/* + * Copyright 2015-2018 The OpenSSL Project Authors. All Rights Reserved. + * + * Licensed under the OpenSSL license (the "License"). You may not use + * this file except in compliance with the License. You can obtain a copy + * in the file LICENSE in the source distribution or at + * https://www.openssl.org/source/license.html + */ + +/***************************************************************************** + * * + * The following definitions are PRIVATE to the state machine. They should * + * NOT be used outside of the state machine. * + * * + *****************************************************************************/ + +/* Max message length definitions */ + +/* The spec allows for a longer length than this, but we limit it */ +#define HELLO_VERIFY_REQUEST_MAX_LENGTH 258 +#define SERVER_HELLO_MAX_LENGTH 20000 +#define SERVER_KEY_EXCH_MAX_LENGTH 102400 +#define SERVER_HELLO_DONE_MAX_LENGTH 0 +#define CCS_MAX_LENGTH 1 +/* Max should actually be 36 but we are generous */ +#define FINISHED_MAX_LENGTH 64 + +/* Message processing return codes */ +typedef enum { + /* Something bad happened */ + MSG_PROCESS_ERROR, + /* We've finished reading - swap to writing */ + MSG_PROCESS_FINISHED_READING, + /* + * We've completed the main processing of this message but there is some + * post processing to be done. + */ + MSG_PROCESS_CONTINUE_PROCESSING, + /* We've finished this message - read the next message */ + MSG_PROCESS_CONTINUE_READING +} MSG_PROCESS_RETURN; + +/* Flush the write BIO */ +int statem_flush(SSL *s); +int ssl3_take_mac(SSL *s); + +/* + * TLS/DTLS client state machine functions + */ +int ossl_statem_client_read_transition(SSL *s, int mt); +WRITE_TRAN ossl_statem_client_write_transition(SSL *s); +WORK_STATE ossl_statem_client_pre_work(SSL *s, WORK_STATE wst); +WORK_STATE ossl_statem_client_post_work(SSL *s, WORK_STATE wst); +int ossl_statem_client_construct_message(SSL *s); +unsigned long ossl_statem_client_max_message_size(SSL *s); +MSG_PROCESS_RETURN ossl_statem_client_process_message(SSL *s, PACKET *pkt); +WORK_STATE ossl_statem_client_post_process_message(SSL *s, WORK_STATE wst); + +/* + * TLS/DTLS server state machine functions + */ +int ossl_statem_server_read_transition(SSL *s, int mt); +WRITE_TRAN ossl_statem_server_write_transition(SSL *s); +WORK_STATE ossl_statem_server_pre_work(SSL *s, WORK_STATE wst); +WORK_STATE ossl_statem_server_post_work(SSL *s, WORK_STATE wst); +int ossl_statem_server_construct_message(SSL *s); +unsigned long ossl_statem_server_max_message_size(SSL *s); +MSG_PROCESS_RETURN ossl_statem_server_process_message(SSL *s, PACKET *pkt); +WORK_STATE ossl_statem_server_post_process_message(SSL *s, WORK_STATE wst); + +/* Functions for getting new message data */ +__owur int tls_get_message_header(SSL *s, int *mt); +__owur int tls_get_message_body(SSL *s, unsigned long *len); +__owur int dtls_get_message(SSL *s, int *mt, unsigned long *len); + +/* Message construction and processing functions */ +__owur MSG_PROCESS_RETURN tls_process_change_cipher_spec(SSL *s, PACKET *pkt); +__owur MSG_PROCESS_RETURN tls_process_finished(SSL *s, PACKET *pkt); +__owur int tls_construct_change_cipher_spec(SSL *s); +__owur int dtls_construct_change_cipher_spec(SSL *s); + +__owur int tls_construct_finished(SSL *s, const char *sender, int slen); +__owur WORK_STATE tls_finish_handshake(SSL *s, WORK_STATE wst); +__owur WORK_STATE dtls_wait_for_dry(SSL *s); + +/* some client-only functions */ +__owur int tls_construct_client_hello(SSL *s); +__owur MSG_PROCESS_RETURN tls_process_server_hello(SSL *s, PACKET *pkt); +__owur MSG_PROCESS_RETURN tls_process_certificate_request(SSL *s, PACKET *pkt); +__owur MSG_PROCESS_RETURN tls_process_new_session_ticket(SSL *s, PACKET *pkt); +__owur MSG_PROCESS_RETURN tls_process_cert_status(SSL *s, PACKET *pkt); +__owur MSG_PROCESS_RETURN tls_process_server_done(SSL *s, PACKET *pkt); +__owur int tls_construct_client_verify(SSL *s); +__owur WORK_STATE tls_prepare_client_certificate(SSL *s, WORK_STATE wst); +__owur int tls_construct_client_certificate(SSL *s); +__owur int ssl_do_client_cert_cb(SSL *s, X509 **px509, EVP_PKEY **ppkey); +__owur int tls_construct_client_key_exchange(SSL *s); +__owur int tls_client_key_exchange_post_work(SSL *s); +__owur int tls_construct_cert_status(SSL *s); +__owur MSG_PROCESS_RETURN tls_process_key_exchange(SSL *s, PACKET *pkt); +__owur MSG_PROCESS_RETURN tls_process_server_certificate(SSL *s, PACKET *pkt); +__owur int ssl3_check_cert_and_algorithm(SSL *s); +#ifndef OPENSSL_NO_NEXTPROTONEG +__owur int tls_construct_next_proto(SSL *s); +#endif +__owur MSG_PROCESS_RETURN dtls_process_hello_verify(SSL *s, PACKET *pkt); + +/* some server-only functions */ +__owur MSG_PROCESS_RETURN tls_process_client_hello(SSL *s, PACKET *pkt); +__owur WORK_STATE tls_post_process_client_hello(SSL *s, WORK_STATE wst); +__owur int tls_construct_server_hello(SSL *s); +__owur int tls_construct_hello_request(SSL *s); +__owur int dtls_construct_hello_verify_request(SSL *s); +__owur int tls_construct_server_certificate(SSL *s); +__owur int tls_construct_server_key_exchange(SSL *s); +__owur int tls_construct_certificate_request(SSL *s); +__owur int tls_construct_server_done(SSL *s); +__owur MSG_PROCESS_RETURN tls_process_client_certificate(SSL *s, PACKET *pkt); +__owur MSG_PROCESS_RETURN tls_process_client_key_exchange(SSL *s, PACKET *pkt); +__owur WORK_STATE tls_post_process_client_key_exchange(SSL *s, WORK_STATE wst); +__owur MSG_PROCESS_RETURN tls_process_cert_verify(SSL *s, PACKET *pkt); +#ifndef OPENSSL_NO_NEXTPROTONEG +__owur MSG_PROCESS_RETURN tls_process_next_proto(SSL *s, PACKET *pkt); +#endif +__owur int tls_construct_new_session_ticket(SSL *s); |