CoCalc -- statem

GitHub Repository: freebsd/freebsd-src
Path: blob/main/crypto/openssl/ssl/statem/statem_local.h
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/*
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 * Copyright 2015-2025 The OpenSSL Project Authors. All Rights Reserved.
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 *
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 * Licensed under the Apache License 2.0 (the "License").  You may not use
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 * this file except in compliance with the License.  You can obtain a copy
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 * in the file LICENSE in the source distribution or at
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 * https://www.openssl.org/source/license.html
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 */
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/*****************************************************************************
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 *                                                                           *
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 * The following definitions are PRIVATE to the state machine. They should   *
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 * NOT be used outside of the state machine.                                 *
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 *                                                                           *
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 *****************************************************************************/
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/* Max message length definitions */
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/* The spec allows for a longer length than this, but we limit it */
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#define HELLO_VERIFY_REQUEST_MAX_LENGTH 258
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#define END_OF_EARLY_DATA_MAX_LENGTH    0
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#define HELLO_RETRY_REQUEST_MAX_LENGTH  20000
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#define ENCRYPTED_EXTENSIONS_MAX_LENGTH 20000
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#define SESSION_TICKET_MAX_LENGTH_TLS13 131338
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#define SESSION_TICKET_MAX_LENGTH_TLS12 65541
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#define SERVER_KEY_EXCH_MAX_LENGTH      102400
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#define SERVER_HELLO_DONE_MAX_LENGTH    0
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#define KEY_UPDATE_MAX_LENGTH           1
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#define CCS_MAX_LENGTH                  1
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/* Max ServerHello size permitted by RFC 8446 */
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#define SERVER_HELLO_MAX_LENGTH         65607
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/* Max CertificateVerify size permitted by RFC 8446 */
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#define CERTIFICATE_VERIFY_MAX_LENGTH   65539
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/* Max should actually be 36 but we are generous */
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#define FINISHED_MAX_LENGTH             64
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/* Dummy message type */
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#define SSL3_MT_DUMMY   -1
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/* Invalid extension ID for non-supported extensions */
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#define TLSEXT_TYPE_invalid            0x10000
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#define TLSEXT_TYPE_out_of_range       0x10001
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unsigned int ossl_get_extension_type(size_t idx);
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extern const unsigned char hrrrandom[];
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/* Message processing return codes */
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typedef enum {
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    /* Something bad happened */
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    MSG_PROCESS_ERROR,
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    /* We've finished reading - swap to writing */
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    MSG_PROCESS_FINISHED_READING,
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    /*
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     * We've completed the main processing of this message but there is some
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     * post processing to be done.
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     */
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    MSG_PROCESS_CONTINUE_PROCESSING,
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    /* We've finished this message - read the next message */
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    MSG_PROCESS_CONTINUE_READING
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} MSG_PROCESS_RETURN;
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typedef CON_FUNC_RETURN (*confunc_f) (SSL_CONNECTION *s, WPACKET *pkt);
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int ssl3_take_mac(SSL_CONNECTION *s);
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int check_in_list(SSL_CONNECTION *s, uint16_t group_id, const uint16_t *groups,
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                  size_t num_groups, int checkallow, size_t *pos);
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int create_synthetic_message_hash(SSL_CONNECTION *s,
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                                  const unsigned char *hashval,
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                                  size_t hashlen, const unsigned char *hrr,
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                                  size_t hrrlen);
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int parse_ca_names(SSL_CONNECTION *s, PACKET *pkt);
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const STACK_OF(X509_NAME) *get_ca_names(SSL_CONNECTION *s);
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int construct_ca_names(SSL_CONNECTION *s, const STACK_OF(X509_NAME) *ca_sk,
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                       WPACKET *pkt);
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size_t construct_key_exchange_tbs(SSL_CONNECTION *s, unsigned char **ptbs,
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                                  const void *param, size_t paramlen);
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/*
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 * TLS/DTLS client state machine functions
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 */
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int ossl_statem_client_read_transition(SSL_CONNECTION *s, int mt);
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WRITE_TRAN ossl_statem_client_write_transition(SSL_CONNECTION *s);
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WORK_STATE ossl_statem_client_pre_work(SSL_CONNECTION *s, WORK_STATE wst);
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WORK_STATE ossl_statem_client_post_work(SSL_CONNECTION *s, WORK_STATE wst);
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int ossl_statem_client_construct_message(SSL_CONNECTION *s,
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                                         confunc_f *confunc, int *mt);
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size_t ossl_statem_client_max_message_size(SSL_CONNECTION *s);
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MSG_PROCESS_RETURN ossl_statem_client_process_message(SSL_CONNECTION *s,
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                                                      PACKET *pkt);
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WORK_STATE ossl_statem_client_post_process_message(SSL_CONNECTION *s,
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                                                   WORK_STATE wst);
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/*
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 * TLS/DTLS server state machine functions
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 */
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int ossl_statem_server_read_transition(SSL_CONNECTION *s, int mt);
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WRITE_TRAN ossl_statem_server_write_transition(SSL_CONNECTION *s);
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WORK_STATE ossl_statem_server_pre_work(SSL_CONNECTION *s, WORK_STATE wst);
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WORK_STATE ossl_statem_server_post_work(SSL_CONNECTION *s, WORK_STATE wst);
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int ossl_statem_server_construct_message(SSL_CONNECTION *s,
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                                         confunc_f *confunc,int *mt);
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size_t ossl_statem_server_max_message_size(SSL_CONNECTION *s);
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MSG_PROCESS_RETURN ossl_statem_server_process_message(SSL_CONNECTION *s,
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                                                      PACKET *pkt);
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WORK_STATE ossl_statem_server_post_process_message(SSL_CONNECTION *s,
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                                                   WORK_STATE wst);
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/* Functions for getting new message data */
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__owur int tls_get_message_header(SSL_CONNECTION *s, int *mt);
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__owur int tls_get_message_body(SSL_CONNECTION *s, size_t *len);
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__owur int dtls_get_message(SSL_CONNECTION *s, int *mt);
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__owur int dtls_get_message_body(SSL_CONNECTION *s, size_t *len);
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/* Message construction and processing functions */
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__owur int tls_process_initial_server_flight(SSL_CONNECTION *s);
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__owur MSG_PROCESS_RETURN tls_process_change_cipher_spec(SSL_CONNECTION *s,
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                                                         PACKET *pkt);
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__owur MSG_PROCESS_RETURN tls_process_finished(SSL_CONNECTION *s, PACKET *pkt);
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__owur CON_FUNC_RETURN  tls_construct_change_cipher_spec(SSL_CONNECTION *s,
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                                                         WPACKET *pkt);
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__owur CON_FUNC_RETURN dtls_construct_change_cipher_spec(SSL_CONNECTION *s,
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                                                         WPACKET *pkt);
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__owur CON_FUNC_RETURN tls_construct_finished(SSL_CONNECTION *s, WPACKET *pkt);
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__owur CON_FUNC_RETURN tls_construct_key_update(SSL_CONNECTION *s, WPACKET *pkt);
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__owur MSG_PROCESS_RETURN tls_process_key_update(SSL_CONNECTION *s,
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                                                 PACKET *pkt);
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__owur WORK_STATE tls_finish_handshake(SSL_CONNECTION *s, WORK_STATE wst,
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                                       int clearbufs, int stop);
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__owur WORK_STATE dtls_wait_for_dry(SSL_CONNECTION *s);
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#ifndef OPENSSL_NO_COMP_ALG
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__owur MSG_PROCESS_RETURN tls13_process_compressed_certificate(SSL_CONNECTION *sc,
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                                                               PACKET *pkt,
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                                                               PACKET *tmppkt,
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                                                               BUF_MEM *buf);
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#endif
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/* some client-only functions */
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__owur CON_FUNC_RETURN tls_construct_client_hello(SSL_CONNECTION *s,
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                                                  WPACKET *pkt);
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__owur MSG_PROCESS_RETURN tls_process_server_hello(SSL_CONNECTION *s,
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                                                   PACKET *pkt);
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__owur MSG_PROCESS_RETURN tls_process_certificate_request(SSL_CONNECTION *s,
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                                                          PACKET *pkt);
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__owur MSG_PROCESS_RETURN tls_process_new_session_ticket(SSL_CONNECTION *s,
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                                                         PACKET *pkt);
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__owur int tls_process_cert_status_body(SSL_CONNECTION *s, PACKET *pkt);
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__owur MSG_PROCESS_RETURN tls_process_cert_status(SSL_CONNECTION *s,
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                                                  PACKET *pkt);
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__owur MSG_PROCESS_RETURN tls_process_server_done(SSL_CONNECTION *s,
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                                                  PACKET *pkt);
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__owur CON_FUNC_RETURN tls_construct_cert_verify(SSL_CONNECTION *s,
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                                                 WPACKET *pkt);
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__owur WORK_STATE tls_prepare_client_certificate(SSL_CONNECTION *s,
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                                                 WORK_STATE wst);
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__owur CON_FUNC_RETURN tls_construct_client_certificate(SSL_CONNECTION *s,
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                                                        WPACKET *pkt);
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#ifndef OPENSSL_NO_COMP_ALG
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__owur CON_FUNC_RETURN tls_construct_client_compressed_certificate(SSL_CONNECTION *sc,
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                                                                   WPACKET *pkt);
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#endif
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__owur int ssl_do_client_cert_cb(SSL_CONNECTION *s, X509 **px509,
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                                 EVP_PKEY **ppkey);
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__owur CON_FUNC_RETURN tls_construct_client_key_exchange(SSL_CONNECTION *s,
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                                                         WPACKET *pkt);
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__owur int tls_client_key_exchange_post_work(SSL_CONNECTION *s);
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__owur int tls_construct_cert_status_body(SSL_CONNECTION *s, WPACKET *pkt);
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__owur CON_FUNC_RETURN tls_construct_cert_status(SSL_CONNECTION *s,
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                                                 WPACKET *pkt);
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__owur MSG_PROCESS_RETURN tls_process_key_exchange(SSL_CONNECTION *s,
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                                                   PACKET *pkt);
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__owur MSG_PROCESS_RETURN tls_process_server_rpk(SSL_CONNECTION *sc,
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                                                 PACKET *pkt);
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__owur MSG_PROCESS_RETURN tls_process_client_rpk(SSL_CONNECTION *sc,
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                                                 PACKET *pkt);
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__owur unsigned long tls_output_rpk(SSL_CONNECTION *sc, WPACKET *pkt,
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                                    CERT_PKEY *cpk);
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__owur int tls_process_rpk(SSL_CONNECTION *s, PACKET *pkt, EVP_PKEY **peer_rpk);
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__owur MSG_PROCESS_RETURN tls_process_server_certificate(SSL_CONNECTION *s,
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                                                         PACKET *pkt);
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__owur WORK_STATE tls_post_process_server_certificate(SSL_CONNECTION *s,
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                                                      WORK_STATE wst);
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#ifndef OPENSSL_NO_COMP_ALG
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__owur MSG_PROCESS_RETURN tls_process_server_compressed_certificate(SSL_CONNECTION *sc,
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                                                                    PACKET *pkt);
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#endif
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__owur int ssl3_check_cert_and_algorithm(SSL_CONNECTION *s);
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#ifndef OPENSSL_NO_NEXTPROTONEG
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__owur CON_FUNC_RETURN tls_construct_next_proto(SSL_CONNECTION *s, WPACKET *pkt);
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#endif
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__owur MSG_PROCESS_RETURN tls_process_hello_req(SSL_CONNECTION *s, PACKET *pkt);
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__owur MSG_PROCESS_RETURN dtls_process_hello_verify(SSL_CONNECTION *s, PACKET *pkt);
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__owur CON_FUNC_RETURN tls_construct_end_of_early_data(SSL_CONNECTION *s,
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                                                       WPACKET *pkt);
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/* some server-only functions */
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__owur MSG_PROCESS_RETURN tls_process_client_hello(SSL_CONNECTION *s,
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                                                   PACKET *pkt);
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__owur WORK_STATE tls_post_process_client_hello(SSL_CONNECTION *s,
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                                                WORK_STATE wst);
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__owur CON_FUNC_RETURN tls_construct_server_hello(SSL_CONNECTION *s,
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                                                  WPACKET *pkt);
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__owur CON_FUNC_RETURN dtls_construct_hello_verify_request(SSL_CONNECTION *s,
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                                                           WPACKET *pkt);
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__owur CON_FUNC_RETURN tls_construct_server_certificate(SSL_CONNECTION *s,
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                                                        WPACKET *pkt);
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#ifndef OPENSSL_NO_COMP_ALG
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__owur CON_FUNC_RETURN tls_construct_server_compressed_certificate(SSL_CONNECTION *sc,
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                                                                   WPACKET *pkt);
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#endif
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__owur CON_FUNC_RETURN tls_construct_server_key_exchange(SSL_CONNECTION *s,
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                                                         WPACKET *pkt);
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__owur CON_FUNC_RETURN tls_construct_certificate_request(SSL_CONNECTION *s,
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                                                         WPACKET *pkt);
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__owur CON_FUNC_RETURN tls_construct_server_done(SSL_CONNECTION *s,
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                                                 WPACKET *pkt);
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__owur MSG_PROCESS_RETURN tls_process_client_certificate(SSL_CONNECTION *s,
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                                                         PACKET *pkt);
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#ifndef OPENSSL_NO_COMP_ALG
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__owur MSG_PROCESS_RETURN tls_process_client_compressed_certificate(SSL_CONNECTION *sc,
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                                                                    PACKET *pkt);
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#endif
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__owur MSG_PROCESS_RETURN tls_process_client_key_exchange(SSL_CONNECTION *s,
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                                                          PACKET *pkt);
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__owur WORK_STATE tls_post_process_client_key_exchange(SSL_CONNECTION *s,
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                                                       WORK_STATE wst);
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__owur MSG_PROCESS_RETURN tls_process_cert_verify(SSL_CONNECTION *s,
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                                                  PACKET *pkt);
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#ifndef OPENSSL_NO_NEXTPROTONEG
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__owur MSG_PROCESS_RETURN tls_process_next_proto(SSL_CONNECTION *s,
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                                                 PACKET *pkt);
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#endif
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__owur CON_FUNC_RETURN tls_construct_new_session_ticket(SSL_CONNECTION *s,
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                                                        WPACKET *pkt);
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MSG_PROCESS_RETURN tls_process_end_of_early_data(SSL_CONNECTION *s,
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                                                 PACKET *pkt);
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#ifndef OPENSSL_NO_GOST
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/* These functions are used in GOST18 CKE, both for client and server */
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int ossl_gost18_cke_cipher_nid(const SSL_CONNECTION *s);
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int ossl_gost_ukm(const SSL_CONNECTION *s, unsigned char *dgst_buf);
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#endif
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/* Extension processing */
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typedef enum ext_return_en {
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    EXT_RETURN_FAIL,
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    EXT_RETURN_SENT,
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    EXT_RETURN_NOT_SENT
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} EXT_RETURN;
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__owur int tls_validate_all_contexts(SSL_CONNECTION *s, unsigned int thisctx,
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                                     RAW_EXTENSION *exts);
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__owur int extension_is_relevant(SSL_CONNECTION *s, unsigned int extctx,
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                                 unsigned int thisctx);
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__owur int tls_collect_extensions(SSL_CONNECTION *s, PACKET *packet,
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                                  unsigned int context,
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                                  RAW_EXTENSION **res, size_t *len, int init);
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__owur int tls_parse_extension(SSL_CONNECTION *s, TLSEXT_INDEX idx, int context,
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                               RAW_EXTENSION *exts,  X509 *x, size_t chainidx);
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__owur int tls_parse_all_extensions(SSL_CONNECTION *s, int context,
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                                    RAW_EXTENSION *exts,
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                                    X509 *x, size_t chainidx, int fin);
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__owur int should_add_extension(SSL_CONNECTION *s, unsigned int extctx,
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                                unsigned int thisctx, int max_version);
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__owur int tls_construct_extensions(SSL_CONNECTION *s, WPACKET *pkt,
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                                    unsigned int context,
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                                    X509 *x, size_t chainidx);
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__owur int tls_psk_do_binder(SSL_CONNECTION *s, const EVP_MD *md,
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                             const unsigned char *msgstart,
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                             size_t binderoffset, const unsigned char *binderin,
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                             unsigned char *binderout,
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                             SSL_SESSION *sess, int sign, int external);
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/* Server Extension processing */
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int tls_parse_ctos_renegotiate(SSL_CONNECTION *s, PACKET *pkt,
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                               unsigned int context,
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                               X509 *x, size_t chainidx);
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int tls_parse_ctos_server_name(SSL_CONNECTION *s, PACKET *pkt,
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                               unsigned int context,
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                               X509 *x, size_t chainidx);
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int tls_parse_ctos_maxfragmentlen(SSL_CONNECTION *s, PACKET *pkt,
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                                  unsigned int context,
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                                  X509 *x, size_t chainidx);
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#ifndef OPENSSL_NO_SRP
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int tls_parse_ctos_srp(SSL_CONNECTION *s, PACKET *pkt, unsigned int context,
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                       X509 *x, size_t chainidx);
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#endif
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int tls_parse_ctos_early_data(SSL_CONNECTION *s, PACKET *pkt,
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                              unsigned int context,
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                              X509 *x, size_t chainidx);
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int tls_parse_ctos_ec_pt_formats(SSL_CONNECTION *s, PACKET *pkt,
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                                 unsigned int context,
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                                 X509 *x, size_t chainidx);
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int tls_parse_ctos_supported_groups(SSL_CONNECTION *s, PACKET *pkt,
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                                    unsigned int context,
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                                    X509 *x, size_t chainidxl);
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int tls_parse_ctos_session_ticket(SSL_CONNECTION *s, PACKET *pkt,
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                                  unsigned int context,
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                                  X509 *x, size_t chainidx);
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int tls_parse_ctos_sig_algs_cert(SSL_CONNECTION *s, PACKET *pkt,
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                                 unsigned int context,
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                                 X509 *x, size_t chainidx);
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int tls_parse_ctos_sig_algs(SSL_CONNECTION *s, PACKET *pkt,
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                            unsigned int context, X509 *x, size_t chainidx);
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#ifndef OPENSSL_NO_OCSP
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int tls_parse_ctos_status_request(SSL_CONNECTION *s, PACKET *pkt,
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                                  unsigned int context,
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                                  X509 *x, size_t chainidx);
315
#endif
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#ifndef OPENSSL_NO_NEXTPROTONEG
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int tls_parse_ctos_npn(SSL_CONNECTION *s, PACKET *pkt, unsigned int context,
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                       X509 *x, size_t chainidx);
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#endif
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int tls_parse_ctos_alpn(SSL_CONNECTION *s, PACKET *pkt, unsigned int context,
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                        X509 *x, size_t chainidx);
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#ifndef OPENSSL_NO_SRTP
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int tls_parse_ctos_use_srtp(SSL_CONNECTION *s, PACKET *pkt,
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                            unsigned int context, X509 *x, size_t chainidx);
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#endif
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int tls_parse_ctos_etm(SSL_CONNECTION *s, PACKET *pkt, unsigned int context,
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                       X509 *x, size_t chainidx);
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int tls_parse_ctos_key_share(SSL_CONNECTION *s, PACKET *pkt,
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                             unsigned int context, X509 *x, size_t chainidx);
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int tls_parse_ctos_cookie(SSL_CONNECTION *s, PACKET *pkt, unsigned int context,
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                          X509 *x, size_t chainidx);
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int tls_parse_ctos_ems(SSL_CONNECTION *s, PACKET *pkt, unsigned int context,
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                       X509 *x, size_t chainidx);
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int tls_parse_ctos_psk_kex_modes(SSL_CONNECTION *s, PACKET *pkt,
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                                 unsigned int context,
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                                 X509 *x, size_t chainidx);
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int tls_parse_ctos_psk(SSL_CONNECTION *s, PACKET *pkt, unsigned int context,
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                       X509 *x, size_t chainidx);
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int tls_parse_ctos_post_handshake_auth(SSL_CONNECTION *, PACKET *pkt,
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                                       unsigned int context,
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                                       X509 *x, size_t chainidx);
342

343
EXT_RETURN tls_construct_stoc_renegotiate(SSL_CONNECTION *s, WPACKET *pkt,
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                                          unsigned int context, X509 *x,
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                                          size_t chainidx);
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EXT_RETURN tls_construct_stoc_server_name(SSL_CONNECTION *s, WPACKET *pkt,
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                                          unsigned int context, X509 *x,
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                                          size_t chainidx);
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EXT_RETURN tls_construct_stoc_early_data(SSL_CONNECTION *s, WPACKET *pkt,
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                                         unsigned int context, X509 *x,
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                                         size_t chainidx);
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EXT_RETURN tls_construct_stoc_maxfragmentlen(SSL_CONNECTION *s, WPACKET *pkt,
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                                             unsigned int context, X509 *x,
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                                             size_t chainidx);
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EXT_RETURN tls_construct_stoc_ec_pt_formats(SSL_CONNECTION *s, WPACKET *pkt,
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                                            unsigned int context, X509 *x,
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                                            size_t chainidx);
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EXT_RETURN tls_construct_stoc_supported_groups(SSL_CONNECTION *s, WPACKET *pkt,
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                                               unsigned int context, X509 *x,
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                                               size_t chainidx);
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EXT_RETURN tls_construct_stoc_session_ticket(SSL_CONNECTION *s, WPACKET *pkt,
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                                             unsigned int context, X509 *x,
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                                             size_t chainidx);
364
#ifndef OPENSSL_NO_OCSP
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EXT_RETURN tls_construct_stoc_status_request(SSL_CONNECTION *s, WPACKET *pkt,
366
                                             unsigned int context, X509 *x,
367
                                             size_t chainidx);
368
#endif
369
#ifndef OPENSSL_NO_NEXTPROTONEG
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EXT_RETURN tls_construct_stoc_next_proto_neg(SSL_CONNECTION *s, WPACKET *pkt,
371
                                             unsigned int context, X509 *x,
372
                                             size_t chainidx);
373
#endif
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EXT_RETURN tls_construct_stoc_alpn(SSL_CONNECTION *s, WPACKET *pkt,
375
                                   unsigned int context,
376
                                   X509 *x, size_t chainidx);
377
#ifndef OPENSSL_NO_SRTP
378
EXT_RETURN tls_construct_stoc_use_srtp(SSL_CONNECTION *s, WPACKET *pkt,
379
                                       unsigned int context,
380
                                       X509 *x, size_t chainidx);
381
#endif
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EXT_RETURN tls_construct_stoc_etm(SSL_CONNECTION *s, WPACKET *pkt,
383
                                  unsigned int context,
384
                                  X509 *x, size_t chainidx);
385
EXT_RETURN tls_construct_stoc_ems(SSL_CONNECTION *s, WPACKET *pkt,
386
                                  unsigned int context,
387
                                  X509 *x, size_t chainidx);
388
EXT_RETURN tls_construct_stoc_supported_versions(SSL_CONNECTION *s, WPACKET *pkt,
389
                                                 unsigned int context, X509 *x,
390
                                                 size_t chainidx);
391
EXT_RETURN tls_construct_stoc_key_share(SSL_CONNECTION *s, WPACKET *pkt,
392
                                        unsigned int context, X509 *x,
393
                                        size_t chainidx);
394
EXT_RETURN tls_construct_stoc_cookie(SSL_CONNECTION *s, WPACKET *pkt,
395
                                     unsigned int context,
396
                                     X509 *x, size_t chainidx);
397
/*
398
 * Not in public headers as this is not an official extension. Only used when
399
 * SSL_OP_CRYPTOPRO_TLSEXT_BUG is set.
400
 */
401
#define TLSEXT_TYPE_cryptopro_bug      0xfde8
402
EXT_RETURN tls_construct_stoc_cryptopro_bug(SSL_CONNECTION *s, WPACKET *pkt,
403
                                            unsigned int context, X509 *x,
404
                                            size_t chainidx);
405
EXT_RETURN tls_construct_stoc_psk(SSL_CONNECTION *s, WPACKET *pkt,
406
                                  unsigned int context,
407
                                  X509 *x, size_t chainidx);
408

409
/* Client Extension processing */
410
EXT_RETURN tls_construct_ctos_renegotiate(SSL_CONNECTION *s, WPACKET *pkt,
411
                                          unsigned int context,
412
                                          X509 *x, size_t chainidx);
413
EXT_RETURN tls_construct_ctos_server_name(SSL_CONNECTION *s, WPACKET *pkt,
414
                                          unsigned int context,
415
                                          X509 *x, size_t chainidx);
416
EXT_RETURN tls_construct_ctos_maxfragmentlen(SSL_CONNECTION *s, WPACKET *pkt,
417
                                             unsigned int context,
418
                                             X509 *x, size_t chainidx);
419
#ifndef OPENSSL_NO_SRP
420
EXT_RETURN tls_construct_ctos_srp(SSL_CONNECTION *s, WPACKET *pkt,
421
                                  unsigned int context, X509 *x,
422
                                  size_t chainidx);
423
#endif
424
EXT_RETURN tls_construct_ctos_ec_pt_formats(SSL_CONNECTION *s, WPACKET *pkt,
425
                                            unsigned int context, X509 *x,
426
                                            size_t chainidx);
427
EXT_RETURN tls_construct_ctos_supported_groups(SSL_CONNECTION *s, WPACKET *pkt,
428
                                               unsigned int context, X509 *x,
429
                                               size_t chainidx);
430

431
EXT_RETURN tls_construct_ctos_early_data(SSL_CONNECTION *s, WPACKET *pkt,
432
                                         unsigned int context, X509 *x,
433
                                         size_t chainidx);
434
EXT_RETURN tls_construct_ctos_session_ticket(SSL_CONNECTION *s, WPACKET *pkt,
435
                                             unsigned int context, X509 *x,
436
                                             size_t chainidx);
437
EXT_RETURN tls_construct_ctos_sig_algs(SSL_CONNECTION *s, WPACKET *pkt,
438
                                       unsigned int context, X509 *x,
439
                                       size_t chainidx);
440
#ifndef OPENSSL_NO_OCSP
441
EXT_RETURN tls_construct_ctos_status_request(SSL_CONNECTION *s, WPACKET *pkt,
442
                                             unsigned int context, X509 *x,
443
                                             size_t chainidx);
444
#endif
445
#ifndef OPENSSL_NO_NEXTPROTONEG
446
EXT_RETURN tls_construct_ctos_npn(SSL_CONNECTION *s, WPACKET *pkt,
447
                                  unsigned int context,
448
                                  X509 *x, size_t chainidx);
449
#endif
450
EXT_RETURN tls_construct_ctos_alpn(SSL_CONNECTION *s, WPACKET *pkt,
451
                                   unsigned int context,
452
                                   X509 *x, size_t chainidx);
453
#ifndef OPENSSL_NO_SRTP
454
EXT_RETURN tls_construct_ctos_use_srtp(SSL_CONNECTION *s, WPACKET *pkt,
455
                                       unsigned int context,
456
                                       X509 *x, size_t chainidx);
457
#endif
458
EXT_RETURN tls_construct_ctos_etm(SSL_CONNECTION *s, WPACKET *pkt,
459
                                  unsigned int context,
460
                                  X509 *x, size_t chainidx);
461
#ifndef OPENSSL_NO_CT
462
EXT_RETURN tls_construct_ctos_sct(SSL_CONNECTION *s, WPACKET *pkt,
463
                                  unsigned int context,
464
                                  X509 *x, size_t chainidx);
465
#endif
466
EXT_RETURN tls_construct_ctos_ems(SSL_CONNECTION *s, WPACKET *pkt,
467
                                  unsigned int context,
468
                                  X509 *x, size_t chainidx);
469
EXT_RETURN tls_construct_ctos_supported_versions(SSL_CONNECTION *s, WPACKET *pkt,
470
                                                 unsigned int context, X509 *x,
471
                                                 size_t chainidx);
472
EXT_RETURN tls_construct_ctos_key_share(SSL_CONNECTION *s, WPACKET *pkt,
473
                                        unsigned int context, X509 *x,
474
                                        size_t chainidx);
475
EXT_RETURN tls_construct_ctos_psk_kex_modes(SSL_CONNECTION *s, WPACKET *pkt,
476
                                            unsigned int context, X509 *x,
477
                                            size_t chainidx);
478
EXT_RETURN tls_construct_ctos_cookie(SSL_CONNECTION *s, WPACKET *pkt,
479
                                     unsigned int context,
480
                                     X509 *x, size_t chainidx);
481
EXT_RETURN tls_construct_ctos_padding(SSL_CONNECTION *s, WPACKET *pkt,
482
                                      unsigned int context, X509 *x,
483
                                      size_t chainidx);
484
EXT_RETURN tls_construct_ctos_psk(SSL_CONNECTION *s, WPACKET *pkt,
485
                                  unsigned int context,
486
                                  X509 *x, size_t chainidx);
487
EXT_RETURN tls_construct_ctos_post_handshake_auth(SSL_CONNECTION *s, WPACKET *pkt,
488
                                                  unsigned int context,
489
                                                  X509 *x, size_t chainidx);
490

491
int tls_parse_stoc_renegotiate(SSL_CONNECTION *s, PACKET *pkt,
492
                               unsigned int context,
493
                               X509 *x, size_t chainidx);
494
int tls_parse_stoc_server_name(SSL_CONNECTION *s, PACKET *pkt,
495
                               unsigned int context,
496
                               X509 *x, size_t chainidx);
497
int tls_parse_stoc_early_data(SSL_CONNECTION *s, PACKET *pkt,
498
                              unsigned int context,
499
                              X509 *x, size_t chainidx);
500
int tls_parse_stoc_maxfragmentlen(SSL_CONNECTION *s, PACKET *pkt,
501
                                  unsigned int context,
502
                                  X509 *x, size_t chainidx);
503
int tls_parse_stoc_ec_pt_formats(SSL_CONNECTION *s, PACKET *pkt,
504
                                 unsigned int context,
505
                                 X509 *x, size_t chainidx);
506
int tls_parse_stoc_session_ticket(SSL_CONNECTION *s, PACKET *pkt,
507
                                  unsigned int context,
508
                                  X509 *x, size_t chainidx);
509
#ifndef OPENSSL_NO_OCSP
510
int tls_parse_stoc_status_request(SSL_CONNECTION *s, PACKET *pkt,
511
                                  unsigned int context,
512
                                  X509 *x, size_t chainidx);
513
#endif
514
#ifndef OPENSSL_NO_CT
515
int tls_parse_stoc_sct(SSL_CONNECTION *s, PACKET *pkt, unsigned int context,
516
                       X509 *x, size_t chainidx);
517
#endif
518
#ifndef OPENSSL_NO_NEXTPROTONEG
519
int tls_parse_stoc_npn(SSL_CONNECTION *s, PACKET *pkt, unsigned int context,
520
                       X509 *x, size_t chainidx);
521
#endif
522
int tls_parse_stoc_alpn(SSL_CONNECTION *s, PACKET *pkt, unsigned int context,
523
                        X509 *x, size_t chainidx);
524
#ifndef OPENSSL_NO_SRTP
525
int tls_parse_stoc_use_srtp(SSL_CONNECTION *s, PACKET *pkt,
526
                            unsigned int context, X509 *x, size_t chainidx);
527
#endif
528
int tls_parse_stoc_etm(SSL_CONNECTION *s, PACKET *pkt, unsigned int context,
529
                       X509 *x, size_t chainidx);
530
int tls_parse_stoc_ems(SSL_CONNECTION *s, PACKET *pkt, unsigned int context,
531
                       X509 *x, size_t chainidx);
532
int tls_parse_stoc_supported_versions(SSL_CONNECTION *s, PACKET *pkt,
533
                                      unsigned int context,
534
                                      X509 *x, size_t chainidx);
535
int tls_parse_stoc_key_share(SSL_CONNECTION *s, PACKET *pkt,
536
                             unsigned int context, X509 *x, size_t chainidx);
537
int tls_parse_stoc_cookie(SSL_CONNECTION *s, PACKET *pkt, unsigned int context,
538
                          X509 *x, size_t chainidx);
539
int tls_parse_stoc_psk(SSL_CONNECTION *s, PACKET *pkt, unsigned int context,
540
                       X509 *x, size_t chainidx);
541

542
int tls_handle_alpn(SSL_CONNECTION *s);
543

544
int tls13_save_handshake_digest_for_pha(SSL_CONNECTION *s);
545
int tls13_restore_handshake_digest_for_pha(SSL_CONNECTION *s);
546

547
__owur EVP_PKEY* tls_get_peer_pkey(const SSL_CONNECTION *sc);
548
/* RFC7250 */
549
EXT_RETURN tls_construct_ctos_client_cert_type(SSL_CONNECTION *sc, WPACKET *pkt,
550
                                               unsigned int context,
551
                                               X509 *x, size_t chainidx);
552
EXT_RETURN tls_construct_stoc_client_cert_type(SSL_CONNECTION *sc, WPACKET *pkt,
553
                                               unsigned int context,
554
                                               X509 *x, size_t chainidx);
555
int tls_parse_ctos_client_cert_type(SSL_CONNECTION *sc, PACKET *pkt,
556
                                    unsigned int context,
557
                                    X509 *x, size_t chainidx);
558
int tls_parse_stoc_client_cert_type(SSL_CONNECTION *sc, PACKET *pkt,
559
                                    unsigned int context,
560
                               X509 *x, size_t chainidx);
561
EXT_RETURN tls_construct_ctos_server_cert_type(SSL_CONNECTION *sc, WPACKET *pkt,
562
                                               unsigned int context,
563
                                               X509 *x, size_t chainidx);
564
EXT_RETURN tls_construct_stoc_server_cert_type(SSL_CONNECTION *sc, WPACKET *pkt,
565
                                               unsigned int context,
566
                                               X509 *x, size_t chainidx);
567
int tls_parse_ctos_server_cert_type(SSL_CONNECTION *sc, PACKET *pkt,
568
                                    unsigned int context,
569
                                    X509 *x, size_t chainidx);
570
int tls_parse_stoc_server_cert_type(SSL_CONNECTION *s, PACKET *pkt,
571
                                    unsigned int context,
572
                                    X509 *x, size_t chainidx);
573

574
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