diff options
Diffstat (limited to 'openssl/ssl/dtls1.h')
| -rw-r--r-- | openssl/ssl/dtls1.h | 267 |
1 files changed, 0 insertions, 267 deletions
diff --git a/openssl/ssl/dtls1.h b/openssl/ssl/dtls1.h deleted file mode 100644 index 2900d1d8..00000000 --- a/openssl/ssl/dtls1.h +++ /dev/null @@ -1,267 +0,0 @@ -/* ssl/dtls1.h */ -/* - * DTLS implementation written by Nagendra Modadugu - * (nagendra@cs.stanford.edu) for the OpenSSL project 2005. - */ -/* ==================================================================== - * Copyright (c) 1999-2005 The OpenSSL Project. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * - * 3. All advertising materials mentioning features or use of this - * software must display the following acknowledgment: - * "This product includes software developed by the OpenSSL Project - * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" - * - * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to - * endorse or promote products derived from this software without - * prior written permission. For written permission, please contact - * openssl-core@OpenSSL.org. - * - * 5. Products derived from this software may not be called "OpenSSL" - * nor may "OpenSSL" appear in their names without prior written - * permission of the OpenSSL Project. - * - * 6. Redistributions of any form whatsoever must retain the following - * acknowledgment: - * "This product includes software developed by the OpenSSL Project - * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" - * - * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY - * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR - * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR - * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT - * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; - * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) - * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED - * OF THE POSSIBILITY OF SUCH DAMAGE. - * ==================================================================== - * - * This product includes cryptographic software written by Eric Young - * (eay@cryptsoft.com). This product includes software written by Tim - * Hudson (tjh@cryptsoft.com). - * - */ - -#ifndef HEADER_DTLS1_H -#define HEADER_DTLS1_H - -#include <openssl/buffer.h> -#include <openssl/pqueue.h> -#ifdef OPENSSL_SYS_VMS -#include <resource.h> -#include <sys/timeb.h> -#endif -#ifdef OPENSSL_SYS_WIN32 -/* Needed for struct timeval */ -#include <winsock.h> -#elif defined(OPENSSL_SYS_NETWARE) && !defined(_WINSOCK2API_) -#include <sys/timeval.h> -#else -#include <sys/time.h> -#endif - -#ifdef __cplusplus -extern "C" { -#endif - -#define DTLS1_VERSION 0xFEFF -#define DTLS1_BAD_VER 0x0100 - -#if 0 -/* this alert description is not specified anywhere... */ -#define DTLS1_AD_MISSING_HANDSHAKE_MESSAGE 110 -#endif - -/* lengths of messages */ -#define DTLS1_COOKIE_LENGTH 256 - -#define DTLS1_RT_HEADER_LENGTH 13 - -#define DTLS1_HM_HEADER_LENGTH 12 - -#define DTLS1_HM_BAD_FRAGMENT -2 -#define DTLS1_HM_FRAGMENT_RETRY -3 - -#define DTLS1_CCS_HEADER_LENGTH 1 - -#ifdef DTLS1_AD_MISSING_HANDSHAKE_MESSAGE -#define DTLS1_AL_HEADER_LENGTH 7 -#else -#define DTLS1_AL_HEADER_LENGTH 2 -#endif - - -typedef struct dtls1_bitmap_st - { - unsigned long map; /* track 32 packets on 32-bit systems - and 64 - on 64-bit systems */ - unsigned char max_seq_num[8]; /* max record number seen so far, - 64-bit value in big-endian - encoding */ - } DTLS1_BITMAP; - -struct dtls1_retransmit_state - { - EVP_CIPHER_CTX *enc_write_ctx; /* cryptographic state */ - EVP_MD_CTX *write_hash; /* used for mac generation */ -#ifndef OPENSSL_NO_COMP - COMP_CTX *compress; /* compression */ -#else - char *compress; -#endif - SSL_SESSION *session; - unsigned short epoch; - }; - -struct hm_header_st - { - unsigned char type; - unsigned long msg_len; - unsigned short seq; - unsigned long frag_off; - unsigned long frag_len; - unsigned int is_ccs; - struct dtls1_retransmit_state saved_retransmit_state; - }; - -struct ccs_header_st - { - unsigned char type; - unsigned short seq; - }; - -struct dtls1_timeout_st - { - /* Number of read timeouts so far */ - unsigned int read_timeouts; - - /* Number of write timeouts so far */ - unsigned int write_timeouts; - - /* Number of alerts received so far */ - unsigned int num_alerts; - }; - -typedef struct record_pqueue_st - { - unsigned short epoch; - pqueue q; - } record_pqueue; - -typedef struct hm_fragment_st - { - struct hm_header_st msg_header; - unsigned char *fragment; - unsigned char *reassembly; - } hm_fragment; - -typedef struct dtls1_state_st - { - unsigned int send_cookie; - unsigned char cookie[DTLS1_COOKIE_LENGTH]; - unsigned char rcvd_cookie[DTLS1_COOKIE_LENGTH]; - unsigned int cookie_len; - - /* - * The current data and handshake epoch. This is initially - * undefined, and starts at zero once the initial handshake is - * completed - */ - unsigned short r_epoch; - unsigned short w_epoch; - - /* records being received in the current epoch */ - DTLS1_BITMAP bitmap; - - /* renegotiation starts a new set of sequence numbers */ - DTLS1_BITMAP next_bitmap; - - /* handshake message numbers */ - unsigned short handshake_write_seq; - unsigned short next_handshake_write_seq; - - unsigned short handshake_read_seq; - - /* save last sequence number for retransmissions */ - unsigned char last_write_sequence[8]; - - /* Received handshake records (processed and unprocessed) */ - record_pqueue unprocessed_rcds; - record_pqueue processed_rcds; - - /* Buffered handshake messages */ - pqueue buffered_messages; - - /* Buffered (sent) handshake records */ - pqueue sent_messages; - - /* Buffered application records. - * Only for records between CCS and Finished - * to prevent either protocol violation or - * unnecessary message loss. - */ - record_pqueue buffered_app_data; - - /* Is set when listening for new connections with dtls1_listen() */ - unsigned int listen; - - unsigned int mtu; /* max DTLS packet size */ - - struct hm_header_st w_msg_hdr; - struct hm_header_st r_msg_hdr; - - struct dtls1_timeout_st timeout; - - /* Indicates when the last handshake msg sent will timeout */ - struct timeval next_timeout; - - /* Timeout duration */ - unsigned short timeout_duration; - - /* storage for Alert/Handshake protocol data received but not - * yet processed by ssl3_read_bytes: */ - unsigned char alert_fragment[DTLS1_AL_HEADER_LENGTH]; - unsigned int alert_fragment_len; - unsigned char handshake_fragment[DTLS1_HM_HEADER_LENGTH]; - unsigned int handshake_fragment_len; - - unsigned int retransmitting; - unsigned int change_cipher_spec_ok; - - } DTLS1_STATE; - -typedef struct dtls1_record_data_st - { - unsigned char *packet; - unsigned int packet_length; - SSL3_BUFFER rbuf; - SSL3_RECORD rrec; - } DTLS1_RECORD_DATA; - - -/* Timeout multipliers (timeout slice is defined in apps/timeouts.h */ -#define DTLS1_TMO_READ_COUNT 2 -#define DTLS1_TMO_WRITE_COUNT 2 - -#define DTLS1_TMO_ALERT_COUNT 12 - -#ifdef __cplusplus -} -#endif -#endif - |