Edit File: ssl3.h
/* ssl/ssl3.h */ /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) * All rights reserved. * * This package is an SSL implementation written * by Eric Young (eay@cryptsoft.com). * The implementation was written so as to conform with Netscapes SSL. * * This library is free for commercial and non-commercial use as long as * the following conditions are aheared to. The following conditions * apply to all code found in this distribution, be it the RC4, RSA, * lhash, DES, etc., code; not just the SSL code. The SSL documentation * included with this distribution is covered by the same copyright terms * except that the holder is Tim Hudson (tjh@cryptsoft.com). * * Copyright remains Eric Young's, and as such any Copyright notices in * the code are not to be removed. * If this package is used in a product, Eric Young should be given attribution * as the author of the parts of the library used. * This can be in the form of a textual message at program startup or * in documentation (online or textual) provided with the package. * * 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 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 acknowledgement: * "This product includes cryptographic software written by * Eric Young (eay@cryptsoft.com)" * The word 'cryptographic' can be left out if the rouines from the library * being used are not cryptographic related :-). * 4. If you include any Windows specific code (or a derivative thereof) from * the apps directory (application code) you must include an acknowledgement: * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" * * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND * ANY EXPRESS 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 AUTHOR OR 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. * * The licence and distribution terms for any publically available version or * derivative of this code cannot be changed. i.e. this code cannot simply be * copied and put under another distribution licence * [including the GNU Public Licence.] */ /* ==================================================================== * Copyright (c) 1998-2002 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). * */ /* ==================================================================== * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED. * ECC cipher suite support in OpenSSL originally developed by * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project. */ #ifndef HEADER_SSL3_H # define HEADER_SSL3_H # ifndef OPENSSL_NO_COMP # include <openssl/comp.h> # endif # include <openssl/buffer.h> # include <openssl/evp.h> # include <openssl/ssl.h> #ifdef __cplusplus extern "C" { #endif /* * Signalling cipher suite value from RFC 5746 * (TLS_EMPTY_RENEGOTIATION_INFO_SCSV) */ # define SSL3_CK_SCSV 0x030000FF /* * Signalling cipher suite value from draft-ietf-tls-downgrade-scsv-00 * (TLS_FALLBACK_SCSV) */ # define SSL3_CK_FALLBACK_SCSV 0x03005600 # define SSL3_CK_RSA_NULL_MD5 0x03000001 # define SSL3_CK_RSA_NULL_SHA 0x03000002 # define SSL3_CK_RSA_RC4_40_MD5 0x03000003 # define SSL3_CK_RSA_RC4_128_MD5 0x03000004 # define SSL3_CK_RSA_RC4_128_SHA 0x03000005 # define SSL3_CK_RSA_RC2_40_MD5 0x03000006 # define SSL3_CK_RSA_IDEA_128_SHA 0x03000007 # define SSL3_CK_RSA_DES_40_CBC_SHA 0x03000008 # define SSL3_CK_RSA_DES_64_CBC_SHA 0x03000009 # define SSL3_CK_RSA_DES_192_CBC3_SHA 0x0300000A # define SSL3_CK_DH_DSS_DES_40_CBC_SHA 0x0300000B # define SSL3_CK_DH_DSS_DES_64_CBC_SHA 0x0300000C # define SSL3_CK_DH_DSS_DES_192_CBC3_SHA 0x0300000D # define SSL3_CK_DH_RSA_DES_40_CBC_SHA 0x0300000E # define SSL3_CK_DH_RSA_DES_64_CBC_SHA 0x0300000F # define SSL3_CK_DH_RSA_DES_192_CBC3_SHA 0x03000010 # define SSL3_CK_EDH_DSS_DES_40_CBC_SHA 0x03000011 # define SSL3_CK_DHE_DSS_DES_40_CBC_SHA SSL3_CK_EDH_DSS_DES_40_CBC_SHA # define SSL3_CK_EDH_DSS_DES_64_CBC_SHA 0x03000012 # define SSL3_CK_DHE_DSS_DES_64_CBC_SHA SSL3_CK_EDH_DSS_DES_64_CBC_SHA # define SSL3_CK_EDH_DSS_DES_192_CBC3_SHA 0x03000013 # define SSL3_CK_DHE_DSS_DES_192_CBC3_SHA SSL3_CK_EDH_DSS_DES_192_CBC3_SHA # define SSL3_CK_EDH_RSA_DES_40_CBC_SHA 0x03000014 # define SSL3_CK_DHE_RSA_DES_40_CBC_SHA SSL3_CK_EDH_RSA_DES_40_CBC_SHA # define SSL3_CK_EDH_RSA_DES_64_CBC_SHA 0x03000015 # define SSL3_CK_DHE_RSA_DES_64_CBC_SHA SSL3_CK_EDH_RSA_DES_64_CBC_SHA # define SSL3_CK_EDH_RSA_DES_192_CBC3_SHA 0x03000016 # define SSL3_CK_DHE_RSA_DES_192_CBC3_SHA SSL3_CK_EDH_RSA_DES_192_CBC3_SHA # define SSL3_CK_ADH_RC4_40_MD5 0x03000017 # define SSL3_CK_ADH_RC4_128_MD5 0x03000018 # define SSL3_CK_ADH_DES_40_CBC_SHA 0x03000019 # define SSL3_CK_ADH_DES_64_CBC_SHA 0x0300001A # define SSL3_CK_ADH_DES_192_CBC_SHA 0x0300001B # if 0 # define SSL3_CK_FZA_DMS_NULL_SHA 0x0300001C # define SSL3_CK_FZA_DMS_FZA_SHA 0x0300001D # if 0 /* Because it clashes with KRB5, is never * used any more, and is safe to remove * according to David Hopwood * <david.hopwood@zetnet.co.uk> of the * ietf-tls list */ # define SSL3_CK_FZA_DMS_RC4_SHA 0x0300001E # endif # endif /* * VRS Additional Kerberos5 entries */ # define SSL3_CK_KRB5_DES_64_CBC_SHA 0x0300001E # define SSL3_CK_KRB5_DES_192_CBC3_SHA 0x0300001F # define SSL3_CK_KRB5_RC4_128_SHA 0x03000020 # define SSL3_CK_KRB5_IDEA_128_CBC_SHA 0x03000021 # define SSL3_CK_KRB5_DES_64_CBC_MD5 0x03000022 # define SSL3_CK_KRB5_DES_192_CBC3_MD5 0x03000023 # define SSL3_CK_KRB5_RC4_128_MD5 0x03000024 # define SSL3_CK_KRB5_IDEA_128_CBC_MD5 0x03000025 # define SSL3_CK_KRB5_DES_40_CBC_SHA 0x03000026 # define SSL3_CK_KRB5_RC2_40_CBC_SHA 0x03000027 # define SSL3_CK_KRB5_RC4_40_SHA 0x03000028 # define SSL3_CK_KRB5_DES_40_CBC_MD5 0x03000029 # define SSL3_CK_KRB5_RC2_40_CBC_MD5 0x0300002A # define SSL3_CK_KRB5_RC4_40_MD5 0x0300002B # define SSL3_TXT_RSA_NULL_MD5 "NULL-MD5" # define SSL3_TXT_RSA_NULL_SHA "NULL-SHA" # define SSL3_TXT_RSA_RC4_40_MD5 "EXP-RC4-MD5" # define SSL3_TXT_RSA_RC4_128_MD5 "RC4-MD5" # define SSL3_TXT_RSA_RC4_128_SHA "RC4-SHA" # define SSL3_TXT_RSA_RC2_40_MD5 "EXP-RC2-CBC-MD5" # define SSL3_TXT_RSA_IDEA_128_SHA "IDEA-CBC-SHA" # define SSL3_TXT_RSA_DES_40_CBC_SHA "EXP-DES-CBC-SHA" # define SSL3_TXT_RSA_DES_64_CBC_SHA "DES-CBC-SHA" # define SSL3_TXT_RSA_DES_192_CBC3_SHA "DES-CBC3-SHA" # define SSL3_TXT_DH_DSS_DES_40_CBC_SHA "EXP-DH-DSS-DES-CBC-SHA" # define SSL3_TXT_DH_DSS_DES_64_CBC_SHA "DH-DSS-DES-CBC-SHA" # define SSL3_TXT_DH_DSS_DES_192_CBC3_SHA "DH-DSS-DES-CBC3-SHA" # define SSL3_TXT_DH_RSA_DES_40_CBC_SHA "EXP-DH-RSA-DES-CBC-SHA" # define SSL3_TXT_DH_RSA_DES_64_CBC_SHA "DH-RSA-DES-CBC-SHA" # define SSL3_TXT_DH_RSA_DES_192_CBC3_SHA "DH-RSA-DES-CBC3-SHA" # define SSL3_TXT_DHE_DSS_DES_40_CBC_SHA "EXP-DHE-DSS-DES-CBC-SHA" # define SSL3_TXT_DHE_DSS_DES_64_CBC_SHA "DHE-DSS-DES-CBC-SHA" # define SSL3_TXT_DHE_DSS_DES_192_CBC3_SHA "DHE-DSS-DES-CBC3-SHA" # define SSL3_TXT_DHE_RSA_DES_40_CBC_SHA "EXP-DHE-RSA-DES-CBC-SHA" # define SSL3_TXT_DHE_RSA_DES_64_CBC_SHA "DHE-RSA-DES-CBC-SHA" # define SSL3_TXT_DHE_RSA_DES_192_CBC3_SHA "DHE-RSA-DES-CBC3-SHA" /* * This next block of six "EDH" labels is for backward compatibility with * older versions of OpenSSL. New code should use the six "DHE" labels above * instead: */ # define SSL3_TXT_EDH_DSS_DES_40_CBC_SHA "EXP-EDH-DSS-DES-CBC-SHA" # define SSL3_TXT_EDH_DSS_DES_64_CBC_SHA "EDH-DSS-DES-CBC-SHA" # define SSL3_TXT_EDH_DSS_DES_192_CBC3_SHA "EDH-DSS-DES-CBC3-SHA" # define SSL3_TXT_EDH_RSA_DES_40_CBC_SHA "EXP-EDH-RSA-DES-CBC-SHA" # define SSL3_TXT_EDH_RSA_DES_64_CBC_SHA "EDH-RSA-DES-CBC-SHA" # define SSL3_TXT_EDH_RSA_DES_192_CBC3_SHA "EDH-RSA-DES-CBC3-SHA" # define SSL3_TXT_ADH_RC4_40_MD5 "EXP-ADH-RC4-MD5" # define SSL3_TXT_ADH_RC4_128_MD5 "ADH-RC4-MD5" # define SSL3_TXT_ADH_DES_40_CBC_SHA "EXP-ADH-DES-CBC-SHA" # define SSL3_TXT_ADH_DES_64_CBC_SHA "ADH-DES-CBC-SHA" # define SSL3_TXT_ADH_DES_192_CBC_SHA "ADH-DES-CBC3-SHA" # if 0 # define SSL3_TXT_FZA_DMS_NULL_SHA "FZA-NULL-SHA" # define SSL3_TXT_FZA_DMS_FZA_SHA "FZA-FZA-CBC-SHA" # define SSL3_TXT_FZA_DMS_RC4_SHA "FZA-RC4-SHA" # endif # define SSL3_TXT_KRB5_DES_64_CBC_SHA "KRB5-DES-CBC-SHA" # define SSL3_TXT_KRB5_DES_192_CBC3_SHA "KRB5-DES-CBC3-SHA" # define SSL3_TXT_KRB5_RC4_128_SHA "KRB5-RC4-SHA" # define SSL3_TXT_KRB5_IDEA_128_CBC_SHA "KRB5-IDEA-CBC-SHA" # define SSL3_TXT_KRB5_DES_64_CBC_MD5 "KRB5-DES-CBC-MD5" # define SSL3_TXT_KRB5_DES_192_CBC3_MD5 "KRB5-DES-CBC3-MD5" # define SSL3_TXT_KRB5_RC4_128_MD5 "KRB5-RC4-MD5" # define SSL3_TXT_KRB5_IDEA_128_CBC_MD5 "KRB5-IDEA-CBC-MD5" # define SSL3_TXT_KRB5_DES_40_CBC_SHA "EXP-KRB5-DES-CBC-SHA" # define SSL3_TXT_KRB5_RC2_40_CBC_SHA "EXP-KRB5-RC2-CBC-SHA" # define SSL3_TXT_KRB5_RC4_40_SHA "EXP-KRB5-RC4-SHA" # define SSL3_TXT_KRB5_DES_40_CBC_MD5 "EXP-KRB5-DES-CBC-MD5" # define SSL3_TXT_KRB5_RC2_40_CBC_MD5 "EXP-KRB5-RC2-CBC-MD5" # define SSL3_TXT_KRB5_RC4_40_MD5 "EXP-KRB5-RC4-MD5" # define SSL3_SSL_SESSION_ID_LENGTH 32 # define SSL3_MAX_SSL_SESSION_ID_LENGTH 32 # define SSL3_MASTER_SECRET_SIZE 48 # define SSL3_RANDOM_SIZE 32 # define SSL3_SESSION_ID_SIZE 32 # define SSL3_RT_HEADER_LENGTH 5 # define SSL3_HM_HEADER_LENGTH 4 # ifndef SSL3_ALIGN_PAYLOAD /* * Some will argue that this increases memory footprint, but it's not * actually true. Point is that malloc has to return at least 64-bit aligned * pointers, meaning that allocating 5 bytes wastes 3 bytes in either case. * Suggested pre-gaping simply moves these wasted bytes from the end of * allocated region to its front, but makes data payload aligned, which * improves performance:-) */ # define SSL3_ALIGN_PAYLOAD 8 # else # if (SSL3_ALIGN_PAYLOAD&(SSL3_ALIGN_PAYLOAD-1))!=0 # error "insane SSL3_ALIGN_PAYLOAD" # undef SSL3_ALIGN_PAYLOAD # endif # endif /* * This is the maximum MAC (digest) size used by the SSL library. Currently * maximum of 20 is used by SHA1, but we reserve for future extension for * 512-bit hashes. */ # define SSL3_RT_MAX_MD_SIZE 64 /* * Maximum block size used in all ciphersuites. Currently 16 for AES. */ # define SSL_RT_MAX_CIPHER_BLOCK_SIZE 16 # define SSL3_RT_MAX_EXTRA (16384) /* Maximum plaintext length: defined by SSL/TLS standards */ # define SSL3_RT_MAX_PLAIN_LENGTH 16384 /* Maximum compression overhead: defined by SSL/TLS standards */ # define SSL3_RT_MAX_COMPRESSED_OVERHEAD 1024 /* * The standards give a maximum encryption overhead of 1024 bytes. In * practice the value is lower than this. The overhead is the maximum number * of padding bytes (256) plus the mac size. */ # define SSL3_RT_MAX_ENCRYPTED_OVERHEAD (256 + SSL3_RT_MAX_MD_SIZE) /* * OpenSSL currently only uses a padding length of at most one block so the * send overhead is smaller. */ # define SSL3_RT_SEND_MAX_ENCRYPTED_OVERHEAD \ (SSL_RT_MAX_CIPHER_BLOCK_SIZE + SSL3_RT_MAX_MD_SIZE) /* If compression isn't used don't include the compression overhead */ # ifdef OPENSSL_NO_COMP # define SSL3_RT_MAX_COMPRESSED_LENGTH SSL3_RT_MAX_PLAIN_LENGTH # else # define SSL3_RT_MAX_COMPRESSED_LENGTH \ (SSL3_RT_MAX_PLAIN_LENGTH+SSL3_RT_MAX_COMPRESSED_OVERHEAD) # endif # define SSL3_RT_MAX_ENCRYPTED_LENGTH \ (SSL3_RT_MAX_ENCRYPTED_OVERHEAD+SSL3_RT_MAX_COMPRESSED_LENGTH) # define SSL3_RT_MAX_PACKET_SIZE \ (SSL3_RT_MAX_ENCRYPTED_LENGTH+SSL3_RT_HEADER_LENGTH) # define SSL3_MD_CLIENT_FINISHED_CONST "\x43\x4C\x4E\x54" # define SSL3_MD_SERVER_FINISHED_CONST "\x53\x52\x56\x52" # define SSL3_VERSION 0x0300 # define SSL3_VERSION_MAJOR 0x03 # define SSL3_VERSION_MINOR 0x00 # define SSL3_RT_CHANGE_CIPHER_SPEC 20 # define SSL3_RT_ALERT 21 # define SSL3_RT_HANDSHAKE 22 # define SSL3_RT_APPLICATION_DATA 23 # define TLS1_RT_HEARTBEAT 24 /* Pseudo content types to indicate additional parameters */ # define TLS1_RT_CRYPTO 0x1000 # define TLS1_RT_CRYPTO_PREMASTER (TLS1_RT_CRYPTO | 0x1) # define TLS1_RT_CRYPTO_CLIENT_RANDOM (TLS1_RT_CRYPTO | 0x2) # define TLS1_RT_CRYPTO_SERVER_RANDOM (TLS1_RT_CRYPTO | 0x3) # define TLS1_RT_CRYPTO_MASTER (TLS1_RT_CRYPTO | 0x4) # define TLS1_RT_CRYPTO_READ 0x0000 # define TLS1_RT_CRYPTO_WRITE 0x0100 # define TLS1_RT_CRYPTO_MAC (TLS1_RT_CRYPTO | 0x5) # define TLS1_RT_CRYPTO_KEY (TLS1_RT_CRYPTO | 0x6) # define TLS1_RT_CRYPTO_IV (TLS1_RT_CRYPTO | 0x7) # define TLS1_RT_CRYPTO_FIXED_IV (TLS1_RT_CRYPTO | 0x8) /* Pseudo content type for SSL/TLS header info */ # define SSL3_RT_HEADER 0x100 # define SSL3_AL_WARNING 1 # define SSL3_AL_FATAL 2 # define SSL3_AD_CLOSE_NOTIFY 0 # define SSL3_AD_UNEXPECTED_MESSAGE 10/* fatal */ # define SSL3_AD_BAD_RECORD_MAC 20/* fatal */ # define SSL3_AD_DECOMPRESSION_FAILURE 30/* fatal */ # define SSL3_AD_HANDSHAKE_FAILURE 40/* fatal */ # define SSL3_AD_NO_CERTIFICATE 41 # define SSL3_AD_BAD_CERTIFICATE 42 # define SSL3_AD_UNSUPPORTED_CERTIFICATE 43 # define SSL3_AD_CERTIFICATE_REVOKED 44 # define SSL3_AD_CERTIFICATE_EXPIRED 45 # define SSL3_AD_CERTIFICATE_UNKNOWN 46 # define SSL3_AD_ILLEGAL_PARAMETER 47/* fatal */ # define TLS1_HB_REQUEST 1 # define TLS1_HB_RESPONSE 2 # ifndef OPENSSL_NO_SSL_INTERN typedef struct ssl3_record_st { /* type of record */ /* * r */ int type; /* How many bytes available */ /* * rw */ unsigned int length; /* read/write offset into 'buf' */ /* * r */ unsigned int off; /* pointer to the record data */ /* * rw */ unsigned char *data; /* where the decode bytes are */ /* * rw */ unsigned char *input; /* only used with decompression - malloc()ed */ /* * r */ unsigned char *comp; /* epoch number, needed by DTLS1 */ /* * r */ unsigned long epoch; /* sequence number, needed by DTLS1 */ /* * r */ unsigned char seq_num[8]; } SSL3_RECORD; typedef struct ssl3_buffer_st { /* at least SSL3_RT_MAX_PACKET_SIZE bytes, see ssl3_setup_buffers() */ unsigned char *buf; /* buffer size */ size_t len; /* where to 'copy from' */ int offset; /* how many bytes left */ int left; } SSL3_BUFFER; # endif # define SSL3_CT_RSA_SIGN 1 # define SSL3_CT_DSS_SIGN 2 # define SSL3_CT_RSA_FIXED_DH 3 # define SSL3_CT_DSS_FIXED_DH 4 # define SSL3_CT_RSA_EPHEMERAL_DH 5 # define SSL3_CT_DSS_EPHEMERAL_DH 6 # define SSL3_CT_FORTEZZA_DMS 20 /* * SSL3_CT_NUMBER is used to size arrays and it must be large enough to * contain all of the cert types defined either for SSLv3 and TLSv1. */ # define SSL3_CT_NUMBER 9 # define SSL3_FLAGS_NO_RENEGOTIATE_CIPHERS 0x0001 # define SSL3_FLAGS_DELAY_CLIENT_FINISHED 0x0002 # define SSL3_FLAGS_POP_BUFFER 0x0004 # define TLS1_FLAGS_TLS_PADDING_BUG 0x0008 # define TLS1_FLAGS_SKIP_CERT_VERIFY 0x0010 # define TLS1_FLAGS_KEEP_HANDSHAKE 0x0020 /* * Set when the handshake is ready to process peer's ChangeCipherSpec message. * Cleared after the message has been processed. */ # define SSL3_FLAGS_CCS_OK 0x0080 /* SSL3_FLAGS_SGC_RESTART_DONE is no longer used */ # define SSL3_FLAGS_SGC_RESTART_DONE 0x0040 # ifndef OPENSSL_NO_SSL_INTERN typedef struct ssl3_state_st { long flags; int delay_buf_pop_ret; unsigned char read_sequence[8]; int read_mac_secret_size; unsigned char read_mac_secret[EVP_MAX_MD_SIZE]; unsigned char write_sequence[8]; int write_mac_secret_size; unsigned char write_mac_secret[EVP_MAX_MD_SIZE]; unsigned char server_random[SSL3_RANDOM_SIZE]; unsigned char client_random[SSL3_RANDOM_SIZE]; /* flags for countermeasure against known-IV weakness */ int need_empty_fragments; int empty_fragment_done; /* The value of 'extra' when the buffers were initialized */ int init_extra; SSL3_BUFFER rbuf; /* read IO goes into here */ SSL3_BUFFER wbuf; /* write IO goes into here */ SSL3_RECORD rrec; /* each decoded record goes in here */ SSL3_RECORD wrec; /* goes out from here */ /* * storage for Alert/Handshake protocol data received but not yet * processed by ssl3_read_bytes: */ unsigned char alert_fragment[2]; unsigned int alert_fragment_len; unsigned char handshake_fragment[4]; unsigned int handshake_fragment_len; /* partial write - check the numbers match */ unsigned int wnum; /* number of bytes sent so far */ int wpend_tot; /* number bytes written */ int wpend_type; int wpend_ret; /* number of bytes submitted */ const unsigned char *wpend_buf; /* used during startup, digest all incoming/outgoing packets */ BIO *handshake_buffer; /* * When set of handshake digests is determined, buffer is hashed and * freed and MD_CTX-es for all required digests are stored in this array */ EVP_MD_CTX **handshake_dgst; /* * Set whenever an expected ChangeCipherSpec message is processed. * Unset when the peer's Finished message is received. * Unexpected ChangeCipherSpec messages trigger a fatal alert. */ int change_cipher_spec; int warn_alert; int fatal_alert; /* * we allow one fatal and one warning alert to be outstanding, send close * alert via the warning alert */ int alert_dispatch; unsigned char send_alert[2]; /* * This flag is set when we should renegotiate ASAP, basically when there * is no more data in the read or write buffers */ int renegotiate; int total_renegotiations; int num_renegotiations; int in_read_app_data; /* * Opaque PRF input as used for the current handshake. These fields are * used only if TLSEXT_TYPE_opaque_prf_input is defined (otherwise, they * are merely present to improve binary compatibility) */ void *client_opaque_prf_input; size_t client_opaque_prf_input_len; void *server_opaque_prf_input; size_t server_opaque_prf_input_len; struct { /* actually only needs to be 16+20 */ unsigned char cert_verify_md[EVP_MAX_MD_SIZE * 2]; /* actually only need to be 16+20 for SSLv3 and 12 for TLS */ unsigned char finish_md[EVP_MAX_MD_SIZE * 2]; int finish_md_len; unsigned char peer_finish_md[EVP_MAX_MD_SIZE * 2]; int peer_finish_md_len; unsigned long message_size; int message_type; /* used to hold the new cipher we are going to use */ const SSL_CIPHER *new_cipher; # ifndef OPENSSL_NO_DH DH *dh; # endif # ifndef OPENSSL_NO_ECDH EC_KEY *ecdh; /* holds short lived ECDH key */ # endif /* used when SSL_ST_FLUSH_DATA is entered */ int next_state; int reuse_message; /* used for certificate requests */ int cert_req; int ctype_num; char ctype[SSL3_CT_NUMBER]; STACK_OF(X509_NAME) *ca_names; int use_rsa_tmp; int key_block_length; unsigned char *key_block; const EVP_CIPHER *new_sym_enc; const EVP_MD *new_hash; int new_mac_pkey_type; int new_mac_secret_size; # ifndef OPENSSL_NO_COMP const SSL_COMP *new_compression; # else char *new_compression; # endif int cert_request; } tmp; /* Connection binding to prevent renegotiation attacks */ unsigned char previous_client_finished[EVP_MAX_MD_SIZE]; unsigned char previous_client_finished_len; unsigned char previous_server_finished[EVP_MAX_MD_SIZE]; unsigned char previous_server_finished_len; int send_connection_binding; /* TODOEKR */ # ifndef OPENSSL_NO_NEXTPROTONEG /* * Set if we saw the Next Protocol Negotiation extension from our peer. */ int next_proto_neg_seen; # endif # ifndef OPENSSL_NO_TLSEXT # ifndef OPENSSL_NO_EC /* * This is set to true if we believe that this is a version of Safari * running on OS X 10.6 or newer. We wish to know this because Safari on * 10.8 .. 10.8.3 has broken ECDHE-ECDSA support. */ char is_probably_safari; # endif /* !OPENSSL_NO_EC */ /* * ALPN information (we are in the process of transitioning from NPN to * ALPN.) */ /* * In a server these point to the selected ALPN protocol after the * ClientHello has been processed. In a client these contain the protocol * that the server selected once the ServerHello has been processed. */ unsigned char *alpn_selected; unsigned alpn_selected_len; # endif /* OPENSSL_NO_TLSEXT */ } SSL3_STATE; # endif /* SSLv3 */ /* * client */ /* extra state */ # define SSL3_ST_CW_FLUSH (0x100|SSL_ST_CONNECT) # ifndef OPENSSL_NO_SCTP # define DTLS1_SCTP_ST_CW_WRITE_SOCK (0x310|SSL_ST_CONNECT) # define DTLS1_SCTP_ST_CR_READ_SOCK (0x320|SSL_ST_CONNECT) # endif /* write to server */ # define SSL3_ST_CW_CLNT_HELLO_A (0x110|SSL_ST_CONNECT) # define SSL3_ST_CW_CLNT_HELLO_B (0x111|SSL_ST_CONNECT) /* read from server */ # define SSL3_ST_CR_SRVR_HELLO_A (0x120|SSL_ST_CONNECT) # define SSL3_ST_CR_SRVR_HELLO_B (0x121|SSL_ST_CONNECT) # define DTLS1_ST_CR_HELLO_VERIFY_REQUEST_A (0x126|SSL_ST_CONNECT) # define DTLS1_ST_CR_HELLO_VERIFY_REQUEST_B (0x127|SSL_ST_CONNECT) # define SSL3_ST_CR_CERT_A (0x130|SSL_ST_CONNECT) # define SSL3_ST_CR_CERT_B (0x131|SSL_ST_CONNECT) # define SSL3_ST_CR_KEY_EXCH_A (0x140|SSL_ST_CONNECT) # define SSL3_ST_CR_KEY_EXCH_B (0x141|SSL_ST_CONNECT) # define SSL3_ST_CR_CERT_REQ_A (0x150|SSL_ST_CONNECT) # define SSL3_ST_CR_CERT_REQ_B (0x151|SSL_ST_CONNECT) # define SSL3_ST_CR_SRVR_DONE_A (0x160|SSL_ST_CONNECT) # define SSL3_ST_CR_SRVR_DONE_B (0x161|SSL_ST_CONNECT) /* write to server */ # define SSL3_ST_CW_CERT_A (0x170|SSL_ST_CONNECT) # define SSL3_ST_CW_CERT_B (0x171|SSL_ST_CONNECT) # define SSL3_ST_CW_CERT_C (0x172|SSL_ST_CONNECT) # define SSL3_ST_CW_CERT_D (0x173|SSL_ST_CONNECT) # define SSL3_ST_CW_KEY_EXCH_A (0x180|SSL_ST_CONNECT) # define SSL3_ST_CW_KEY_EXCH_B (0x181|SSL_ST_CONNECT) # define SSL3_ST_CW_CERT_VRFY_A (0x190|SSL_ST_CONNECT) # define SSL3_ST_CW_CERT_VRFY_B (0x191|SSL_ST_CONNECT) # define SSL3_ST_CW_CHANGE_A (0x1A0|SSL_ST_CONNECT) # define SSL3_ST_CW_CHANGE_B (0x1A1|SSL_ST_CONNECT) # ifndef OPENSSL_NO_NEXTPROTONEG # define SSL3_ST_CW_NEXT_PROTO_A (0x200|SSL_ST_CONNECT) # define SSL3_ST_CW_NEXT_PROTO_B (0x201|SSL_ST_CONNECT) # endif # define SSL3_ST_CW_FINISHED_A (0x1B0|SSL_ST_CONNECT) # define SSL3_ST_CW_FINISHED_B (0x1B1|SSL_ST_CONNECT) /* read from server */ # define SSL3_ST_CR_CHANGE_A (0x1C0|SSL_ST_CONNECT) # define SSL3_ST_CR_CHANGE_B (0x1C1|SSL_ST_CONNECT) # define SSL3_ST_CR_FINISHED_A (0x1D0|SSL_ST_CONNECT) # define SSL3_ST_CR_FINISHED_B (0x1D1|SSL_ST_CONNECT) # define SSL3_ST_CR_SESSION_TICKET_A (0x1E0|SSL_ST_CONNECT) # define SSL3_ST_CR_SESSION_TICKET_B (0x1E1|SSL_ST_CONNECT) # define SSL3_ST_CR_CERT_STATUS_A (0x1F0|SSL_ST_CONNECT) # define SSL3_ST_CR_CERT_STATUS_B (0x1F1|SSL_ST_CONNECT) /* server */ /* extra state */ # define SSL3_ST_SW_FLUSH (0x100|SSL_ST_ACCEPT) # ifndef OPENSSL_NO_SCTP # define DTLS1_SCTP_ST_SW_WRITE_SOCK (0x310|SSL_ST_ACCEPT) # define DTLS1_SCTP_ST_SR_READ_SOCK (0x320|SSL_ST_ACCEPT) # endif /* read from client */ /* Do not change the number values, they do matter */ # define SSL3_ST_SR_CLNT_HELLO_A (0x110|SSL_ST_ACCEPT) # define SSL3_ST_SR_CLNT_HELLO_B (0x111|SSL_ST_ACCEPT) # define SSL3_ST_SR_CLNT_HELLO_C (0x112|SSL_ST_ACCEPT) # define SSL3_ST_SR_CLNT_HELLO_D (0x115|SSL_ST_ACCEPT) /* write to client */ # define DTLS1_ST_SW_HELLO_VERIFY_REQUEST_A (0x113|SSL_ST_ACCEPT) # define DTLS1_ST_SW_HELLO_VERIFY_REQUEST_B (0x114|SSL_ST_ACCEPT) # define SSL3_ST_SW_HELLO_REQ_A (0x120|SSL_ST_ACCEPT) # define SSL3_ST_SW_HELLO_REQ_B (0x121|SSL_ST_ACCEPT) # define SSL3_ST_SW_HELLO_REQ_C (0x122|SSL_ST_ACCEPT) # define SSL3_ST_SW_SRVR_HELLO_A (0x130|SSL_ST_ACCEPT) # define SSL3_ST_SW_SRVR_HELLO_B (0x131|SSL_ST_ACCEPT) # define SSL3_ST_SW_CERT_A (0x140|SSL_ST_ACCEPT) # define SSL3_ST_SW_CERT_B (0x141|SSL_ST_ACCEPT) # define SSL3_ST_SW_KEY_EXCH_A (0x150|SSL_ST_ACCEPT) # define SSL3_ST_SW_KEY_EXCH_B (0x151|SSL_ST_ACCEPT) # define SSL3_ST_SW_CERT_REQ_A (0x160|SSL_ST_ACCEPT) # define SSL3_ST_SW_CERT_REQ_B (0x161|SSL_ST_ACCEPT) # define SSL3_ST_SW_SRVR_DONE_A (0x170|SSL_ST_ACCEPT) # define SSL3_ST_SW_SRVR_DONE_B (0x171|SSL_ST_ACCEPT) /* read from client */ # define SSL3_ST_SR_CERT_A (0x180|SSL_ST_ACCEPT) # define SSL3_ST_SR_CERT_B (0x181|SSL_ST_ACCEPT) # define SSL3_ST_SR_KEY_EXCH_A (0x190|SSL_ST_ACCEPT) # define SSL3_ST_SR_KEY_EXCH_B (0x191|SSL_ST_ACCEPT) # define SSL3_ST_SR_CERT_VRFY_A (0x1A0|SSL_ST_ACCEPT) # define SSL3_ST_SR_CERT_VRFY_B (0x1A1|SSL_ST_ACCEPT) # define SSL3_ST_SR_CHANGE_A (0x1B0|SSL_ST_ACCEPT) # define SSL3_ST_SR_CHANGE_B (0x1B1|SSL_ST_ACCEPT) # ifndef OPENSSL_NO_NEXTPROTONEG # define SSL3_ST_SR_NEXT_PROTO_A (0x210|SSL_ST_ACCEPT) # define SSL3_ST_SR_NEXT_PROTO_B (0x211|SSL_ST_ACCEPT) # endif # define SSL3_ST_SR_FINISHED_A (0x1C0|SSL_ST_ACCEPT) # define SSL3_ST_SR_FINISHED_B (0x1C1|SSL_ST_ACCEPT) /* write to client */ # define SSL3_ST_SW_CHANGE_A (0x1D0|SSL_ST_ACCEPT) # define SSL3_ST_SW_CHANGE_B (0x1D1|SSL_ST_ACCEPT) # define SSL3_ST_SW_FINISHED_A (0x1E0|SSL_ST_ACCEPT) # define SSL3_ST_SW_FINISHED_B (0x1E1|SSL_ST_ACCEPT) # define SSL3_ST_SW_SESSION_TICKET_A (0x1F0|SSL_ST_ACCEPT) # define SSL3_ST_SW_SESSION_TICKET_B (0x1F1|SSL_ST_ACCEPT) # define SSL3_ST_SW_CERT_STATUS_A (0x200|SSL_ST_ACCEPT) # define SSL3_ST_SW_CERT_STATUS_B (0x201|SSL_ST_ACCEPT) # define SSL3_MT_HELLO_REQUEST 0 # define SSL3_MT_CLIENT_HELLO 1 # define SSL3_MT_SERVER_HELLO 2 # define SSL3_MT_NEWSESSION_TICKET 4 # define SSL3_MT_CERTIFICATE 11 # define SSL3_MT_SERVER_KEY_EXCHANGE 12 # define SSL3_MT_CERTIFICATE_REQUEST 13 # define SSL3_MT_SERVER_DONE 14 # define SSL3_MT_CERTIFICATE_VERIFY 15 # define SSL3_MT_CLIENT_KEY_EXCHANGE 16 # define SSL3_MT_FINISHED 20 # define SSL3_MT_CERTIFICATE_STATUS 22 # ifndef OPENSSL_NO_NEXTPROTONEG # define SSL3_MT_NEXT_PROTO 67 # endif # define DTLS1_MT_HELLO_VERIFY_REQUEST 3 # define SSL3_MT_CCS 1 /* These are used when changing over to a new cipher */ # define SSL3_CC_READ 0x01 # define SSL3_CC_WRITE 0x02 # define SSL3_CC_CLIENT 0x10 # define SSL3_CC_SERVER 0x20 # define SSL3_CHANGE_CIPHER_CLIENT_WRITE (SSL3_CC_CLIENT|SSL3_CC_WRITE) # define SSL3_CHANGE_CIPHER_SERVER_READ (SSL3_CC_SERVER|SSL3_CC_READ) # define SSL3_CHANGE_CIPHER_CLIENT_READ (SSL3_CC_CLIENT|SSL3_CC_READ) # define SSL3_CHANGE_CIPHER_SERVER_WRITE (SSL3_CC_SERVER|SSL3_CC_WRITE) #ifdef __cplusplus } #endif #endif