e41c5bd730
reveal whether illegal block cipher padding was found or a MAC verification error occured. In ssl/s2_pkt.c, verify that the purported number of padding bytes is in the legal range.
269 lines
10 KiB
C
269 lines
10 KiB
C
/* ssl/ssl2.h */
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/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
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* All rights reserved.
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*
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* This package is an SSL implementation written
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* by Eric Young (eay@cryptsoft.com).
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* The implementation was written so as to conform with Netscapes SSL.
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*
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* This library is free for commercial and non-commercial use as long as
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* the following conditions are aheared to. The following conditions
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* apply to all code found in this distribution, be it the RC4, RSA,
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* lhash, DES, etc., code; not just the SSL code. The SSL documentation
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* included with this distribution is covered by the same copyright terms
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* except that the holder is Tim Hudson (tjh@cryptsoft.com).
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*
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* Copyright remains Eric Young's, and as such any Copyright notices in
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* the code are not to be removed.
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* If this package is used in a product, Eric Young should be given attribution
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* as the author of the parts of the library used.
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* This can be in the form of a textual message at program startup or
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* in documentation (online or textual) provided with the package.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* "This product includes cryptographic software written by
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* Eric Young (eay@cryptsoft.com)"
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* The word 'cryptographic' can be left out if the rouines from the library
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* being used are not cryptographic related :-).
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* 4. If you include any Windows specific code (or a derivative thereof) from
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* the apps directory (application code) you must include an acknowledgement:
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* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
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*
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* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* The licence and distribution terms for any publically available version or
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* derivative of this code cannot be changed. i.e. this code cannot simply be
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* copied and put under another distribution licence
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* [including the GNU Public Licence.]
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*/
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#ifndef HEADER_SSL2_H
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#define HEADER_SSL2_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* Protocol Version Codes */
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#define SSL2_VERSION 0x0002
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#define SSL2_VERSION_MAJOR 0x00
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#define SSL2_VERSION_MINOR 0x02
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/* #define SSL2_CLIENT_VERSION 0x0002 */
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/* #define SSL2_SERVER_VERSION 0x0002 */
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/* Protocol Message Codes */
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#define SSL2_MT_ERROR 0
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#define SSL2_MT_CLIENT_HELLO 1
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#define SSL2_MT_CLIENT_MASTER_KEY 2
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#define SSL2_MT_CLIENT_FINISHED 3
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#define SSL2_MT_SERVER_HELLO 4
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#define SSL2_MT_SERVER_VERIFY 5
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#define SSL2_MT_SERVER_FINISHED 6
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#define SSL2_MT_REQUEST_CERTIFICATE 7
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#define SSL2_MT_CLIENT_CERTIFICATE 8
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/* Error Message Codes */
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#define SSL2_PE_UNDEFINED_ERROR 0x0000
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#define SSL2_PE_NO_CIPHER 0x0001
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#define SSL2_PE_NO_CERTIFICATE 0x0002
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#define SSL2_PE_BAD_CERTIFICATE 0x0004
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#define SSL2_PE_UNSUPPORTED_CERTIFICATE_TYPE 0x0006
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/* Cipher Kind Values */
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#define SSL2_CK_NULL_WITH_MD5 0x02000000 /* v3 */
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#define SSL2_CK_RC4_128_WITH_MD5 0x02010080
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#define SSL2_CK_RC4_128_EXPORT40_WITH_MD5 0x02020080
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#define SSL2_CK_RC2_128_CBC_WITH_MD5 0x02030080
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#define SSL2_CK_RC2_128_CBC_EXPORT40_WITH_MD5 0x02040080
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#define SSL2_CK_IDEA_128_CBC_WITH_MD5 0x02050080
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#define SSL2_CK_DES_64_CBC_WITH_MD5 0x02060040
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#define SSL2_CK_DES_64_CBC_WITH_SHA 0x02060140 /* v3 */
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#define SSL2_CK_DES_192_EDE3_CBC_WITH_MD5 0x020700c0
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#define SSL2_CK_DES_192_EDE3_CBC_WITH_SHA 0x020701c0 /* v3 */
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#define SSL2_CK_RC4_64_WITH_MD5 0x02080080 /* MS hack */
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#define SSL2_CK_DES_64_CFB64_WITH_MD5_1 0x02ff0800 /* SSLeay */
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#define SSL2_CK_NULL 0x02ff0810 /* SSLeay */
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#define SSL2_TXT_DES_64_CFB64_WITH_MD5_1 "DES-CFB-M1"
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#define SSL2_TXT_NULL_WITH_MD5 "NULL-MD5"
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#define SSL2_TXT_RC4_128_WITH_MD5 "RC4-MD5"
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#define SSL2_TXT_RC4_128_EXPORT40_WITH_MD5 "EXP-RC4-MD5"
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#define SSL2_TXT_RC2_128_CBC_WITH_MD5 "RC2-CBC-MD5"
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#define SSL2_TXT_RC2_128_CBC_EXPORT40_WITH_MD5 "EXP-RC2-CBC-MD5"
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#define SSL2_TXT_IDEA_128_CBC_WITH_MD5 "IDEA-CBC-MD5"
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#define SSL2_TXT_DES_64_CBC_WITH_MD5 "DES-CBC-MD5"
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#define SSL2_TXT_DES_64_CBC_WITH_SHA "DES-CBC-SHA"
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#define SSL2_TXT_DES_192_EDE3_CBC_WITH_MD5 "DES-CBC3-MD5"
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#define SSL2_TXT_DES_192_EDE3_CBC_WITH_SHA "DES-CBC3-SHA"
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#define SSL2_TXT_RC4_64_WITH_MD5 "RC4-64-MD5"
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#define SSL2_TXT_NULL "NULL"
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/* Flags for the SSL_CIPHER.algorithm2 field */
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#define SSL2_CF_5_BYTE_ENC 0x01
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#define SSL2_CF_8_BYTE_ENC 0x02
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/* Certificate Type Codes */
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#define SSL2_CT_X509_CERTIFICATE 0x01
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/* Authentication Type Code */
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#define SSL2_AT_MD5_WITH_RSA_ENCRYPTION 0x01
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#define SSL2_MAX_SSL_SESSION_ID_LENGTH 32
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/* Upper/Lower Bounds */
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#define SSL2_MAX_MASTER_KEY_LENGTH_IN_BITS 256
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#ifdef MPE
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#define SSL2_MAX_RECORD_LENGTH_2_BYTE_HEADER 29998u
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#else
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#define SSL2_MAX_RECORD_LENGTH_2_BYTE_HEADER 32767u /* 2^15-1 */
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#endif
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#define SSL2_MAX_RECORD_LENGTH_3_BYTE_HEADER 16383 /* 2^14-1 */
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#define SSL2_CHALLENGE_LENGTH 16
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/*#define SSL2_CHALLENGE_LENGTH 32 */
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#define SSL2_MIN_CHALLENGE_LENGTH 16
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#define SSL2_MAX_CHALLENGE_LENGTH 32
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#define SSL2_CONNECTION_ID_LENGTH 16
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#define SSL2_MAX_CONNECTION_ID_LENGTH 16
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#define SSL2_SSL_SESSION_ID_LENGTH 16
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#define SSL2_MAX_CERT_CHALLENGE_LENGTH 32
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#define SSL2_MIN_CERT_CHALLENGE_LENGTH 16
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#define SSL2_MAX_KEY_MATERIAL_LENGTH 24
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#ifndef HEADER_SSL_LOCL_H
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#define CERT char
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#endif
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typedef struct ssl2_state_st
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{
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int three_byte_header;
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int clear_text; /* clear text */
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int escape; /* not used in SSLv2 */
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int ssl2_rollback; /* used if SSLv23 rolled back to SSLv2 */
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/* non-blocking io info, used to make sure the same
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* args were passwd */
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unsigned int wnum; /* number of bytes sent so far */
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int wpend_tot;
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const unsigned char *wpend_buf;
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int wpend_off; /* offset to data to write */
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int wpend_len; /* number of bytes passwd to write */
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int wpend_ret; /* number of bytes to return to caller */
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/* buffer raw data */
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int rbuf_left;
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int rbuf_offs;
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unsigned char *rbuf;
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unsigned char *wbuf;
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unsigned char *write_ptr;/* used to point to the start due to
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* 2/3 byte header. */
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unsigned int padding;
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unsigned int rlength; /* passed to ssl2_enc */
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int ract_data_length; /* Set when things are encrypted. */
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unsigned int wlength; /* passed to ssl2_enc */
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int wact_data_length; /* Set when things are decrypted. */
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unsigned char *ract_data;
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unsigned char *wact_data;
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unsigned char *mac_data;
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unsigned char *pad_data_UNUSED; /* only for binary compatibility with 0.9.6b */
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unsigned char *read_key;
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unsigned char *write_key;
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/* Stuff specifically to do with this SSL session */
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unsigned int challenge_length;
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unsigned char challenge[SSL2_MAX_CHALLENGE_LENGTH];
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unsigned int conn_id_length;
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unsigned char conn_id[SSL2_MAX_CONNECTION_ID_LENGTH];
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unsigned int key_material_length;
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unsigned char key_material[SSL2_MAX_KEY_MATERIAL_LENGTH*2];
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unsigned long read_sequence;
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unsigned long write_sequence;
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struct {
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unsigned int conn_id_length;
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unsigned int cert_type;
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unsigned int cert_length;
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int csl;
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int clear;
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unsigned int enc;
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unsigned char ccl[SSL2_MAX_CERT_CHALLENGE_LENGTH];
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int cipher_spec_length;
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unsigned int session_id_length;
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unsigned int clen;
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unsigned int rlen;
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} tmp;
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} SSL2_STATE;
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/* SSLv2 */
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/* client */
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#define SSL2_ST_SEND_CLIENT_HELLO_A (0x10|SSL_ST_CONNECT)
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#define SSL2_ST_SEND_CLIENT_HELLO_B (0x11|SSL_ST_CONNECT)
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#define SSL2_ST_GET_SERVER_HELLO_A (0x20|SSL_ST_CONNECT)
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#define SSL2_ST_GET_SERVER_HELLO_B (0x21|SSL_ST_CONNECT)
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#define SSL2_ST_SEND_CLIENT_MASTER_KEY_A (0x30|SSL_ST_CONNECT)
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#define SSL2_ST_SEND_CLIENT_MASTER_KEY_B (0x31|SSL_ST_CONNECT)
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#define SSL2_ST_SEND_CLIENT_FINISHED_A (0x40|SSL_ST_CONNECT)
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#define SSL2_ST_SEND_CLIENT_FINISHED_B (0x41|SSL_ST_CONNECT)
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#define SSL2_ST_SEND_CLIENT_CERTIFICATE_A (0x50|SSL_ST_CONNECT)
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#define SSL2_ST_SEND_CLIENT_CERTIFICATE_B (0x51|SSL_ST_CONNECT)
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#define SSL2_ST_SEND_CLIENT_CERTIFICATE_C (0x52|SSL_ST_CONNECT)
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#define SSL2_ST_SEND_CLIENT_CERTIFICATE_D (0x53|SSL_ST_CONNECT)
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#define SSL2_ST_GET_SERVER_VERIFY_A (0x60|SSL_ST_CONNECT)
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#define SSL2_ST_GET_SERVER_VERIFY_B (0x61|SSL_ST_CONNECT)
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#define SSL2_ST_GET_SERVER_FINISHED_A (0x70|SSL_ST_CONNECT)
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#define SSL2_ST_GET_SERVER_FINISHED_B (0x71|SSL_ST_CONNECT)
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#define SSL2_ST_CLIENT_START_ENCRYPTION (0x80|SSL_ST_CONNECT)
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#define SSL2_ST_X509_GET_CLIENT_CERTIFICATE (0x90|SSL_ST_CONNECT)
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/* server */
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#define SSL2_ST_GET_CLIENT_HELLO_A (0x10|SSL_ST_ACCEPT)
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#define SSL2_ST_GET_CLIENT_HELLO_B (0x11|SSL_ST_ACCEPT)
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#define SSL2_ST_GET_CLIENT_HELLO_C (0x12|SSL_ST_ACCEPT)
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#define SSL2_ST_SEND_SERVER_HELLO_A (0x20|SSL_ST_ACCEPT)
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#define SSL2_ST_SEND_SERVER_HELLO_B (0x21|SSL_ST_ACCEPT)
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#define SSL2_ST_GET_CLIENT_MASTER_KEY_A (0x30|SSL_ST_ACCEPT)
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#define SSL2_ST_GET_CLIENT_MASTER_KEY_B (0x31|SSL_ST_ACCEPT)
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#define SSL2_ST_SEND_SERVER_VERIFY_A (0x40|SSL_ST_ACCEPT)
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#define SSL2_ST_SEND_SERVER_VERIFY_B (0x41|SSL_ST_ACCEPT)
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#define SSL2_ST_SEND_SERVER_VERIFY_C (0x42|SSL_ST_ACCEPT)
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#define SSL2_ST_GET_CLIENT_FINISHED_A (0x50|SSL_ST_ACCEPT)
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#define SSL2_ST_GET_CLIENT_FINISHED_B (0x51|SSL_ST_ACCEPT)
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#define SSL2_ST_SEND_SERVER_FINISHED_A (0x60|SSL_ST_ACCEPT)
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#define SSL2_ST_SEND_SERVER_FINISHED_B (0x61|SSL_ST_ACCEPT)
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#define SSL2_ST_SEND_REQUEST_CERTIFICATE_A (0x70|SSL_ST_ACCEPT)
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#define SSL2_ST_SEND_REQUEST_CERTIFICATE_B (0x71|SSL_ST_ACCEPT)
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#define SSL2_ST_SEND_REQUEST_CERTIFICATE_C (0x72|SSL_ST_ACCEPT)
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#define SSL2_ST_SEND_REQUEST_CERTIFICATE_D (0x73|SSL_ST_ACCEPT)
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#define SSL2_ST_SERVER_START_ENCRYPTION (0x80|SSL_ST_ACCEPT)
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#define SSL2_ST_X509_GET_SERVER_CERTIFICATE (0x90|SSL_ST_ACCEPT)
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#ifdef __cplusplus
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}
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#endif
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#endif
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