| /* 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 |
| |
| #include <openssl/aead.h> |
| #include <openssl/buf.h> |
| #include <openssl/evp.h> |
| #include <openssl/ssl.h> |
| #include <openssl/type_check.h> |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| /* These are kept to support clients that negotiates higher protocol versions |
| * using SSLv2 client hello records. */ |
| #define SSL2_MT_CLIENT_HELLO 1 |
| #define SSL2_VERSION 0x0002 |
| |
| /* Signalling cipher suite value: from RFC5746 */ |
| #define SSL3_CK_SCSV 0x030000FF |
| /* Fallback signalling cipher suite value: not IANA assigned. |
| * See https://tools.ietf.org/html/draft-bmoeller-tls-downgrade-scsv-01 */ |
| #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_EDH_DSS_DES_64_CBC_SHA 0x03000012 |
| #define SSL3_CK_EDH_DSS_DES_192_CBC3_SHA 0x03000013 |
| #define SSL3_CK_EDH_RSA_DES_40_CBC_SHA 0x03000014 |
| #define SSL3_CK_EDH_RSA_DES_64_CBC_SHA 0x03000015 |
| #define SSL3_CK_EDH_RSA_DES_192_CBC3_SHA 0x03000016 |
| |
| #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 |
| |
| #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_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" |
| |
| #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. |
| * |
| * TODO(davidben): This derivation doesn't take AEADs into account, or TLS 1.1 |
| * explicit nonces. It happens to work because |SSL3_RT_MAX_MD_SIZE| is larger |
| * than necessary and no true AEAD has variable overhead in TLS 1.2. */ |
| #define SSL3_RT_MAX_ENCRYPTED_OVERHEAD (256 + SSL3_RT_MAX_MD_SIZE) |
| |
| /* SSL3_RT_SEND_MAX_ENCRYPTED_OVERHEAD is the maximum overhead in encrypting a |
| * record. This does not include the record header. Some ciphers use explicit |
| * nonces, so it includes both the AEAD overhead as well as the nonce. */ |
| #define SSL3_RT_SEND_MAX_ENCRYPTED_OVERHEAD \ |
| (EVP_AEAD_MAX_OVERHEAD + EVP_AEAD_MAX_NONCE_LENGTH) |
| |
| OPENSSL_COMPILE_ASSERT( |
| SSL3_RT_MAX_ENCRYPTED_OVERHEAD >= SSL3_RT_SEND_MAX_ENCRYPTED_OVERHEAD, |
| max_overheads_are_consistent); |
| |
| /* SSL3_RT_MAX_COMPRESSED_LENGTH is an alias for |
| * |SSL3_RT_MAX_PLAIN_LENGTH|. Compression is gone, so don't include the |
| * compression overhead. */ |
| #define SSL3_RT_MAX_COMPRESSED_LENGTH SSL3_RT_MAX_PLAIN_LENGTH |
| |
| #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 |
| |
| /* 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 SSL3_AD_INAPPROPRIATE_FALLBACK 86 /* fatal */ |
| |
| typedef struct ssl3_record_st { |
| /* type is the record type. */ |
| uint8_t type; |
| /* length is the number of unconsumed bytes of |data|. */ |
| uint16_t length; |
| /* off is the number of consumed bytes of |data|. */ |
| uint16_t off; |
| /* data is a non-owning pointer to the record contents. The total length of |
| * the buffer is |off| + |length|. */ |
| uint8_t *data; |
| /* epoch, in DTLS, is the epoch number of the record. */ |
| uint16_t epoch; |
| /* seq_num, in DTLS, is the sequence number of the record. The top two bytes |
| * are always zero. |
| * |
| * TODO(davidben): This is confusing. They should include the epoch or the |
| * field should be six bytes. */ |
| uint8_t seq_num[8]; |
| } SSL3_RECORD; |
| |
| typedef struct ssl3_buffer_st { |
| uint8_t *buf; /* at least SSL3_RT_MAX_PACKET_SIZE bytes, see |
| ssl3_setup_buffers() */ |
| size_t len; /* buffer size */ |
| int offset; /* where to 'copy from' */ |
| int left; /* how many bytes left */ |
| } SSL3_BUFFER; |
| |
| #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 |
| |
| |
| /* TODO(davidben): This flag can probably be merged into s3->change_cipher_spec |
| * to something tri-state. (Normal / Expect CCS / Between CCS and Finished). */ |
| #define SSL3_FLAGS_EXPECT_CCS 0x0080 |
| |
| typedef struct ssl3_state_st { |
| long flags; |
| |
| uint8_t read_sequence[8]; |
| int read_mac_secret_size; |
| uint8_t read_mac_secret[EVP_MAX_MD_SIZE]; |
| uint8_t write_sequence[8]; |
| int write_mac_secret_size; |
| uint8_t write_mac_secret[EVP_MAX_MD_SIZE]; |
| |
| uint8_t server_random[SSL3_RANDOM_SIZE]; |
| uint8_t client_random[SSL3_RANDOM_SIZE]; |
| |
| /* flags for countermeasure against known-IV weakness */ |
| int need_record_splitting; |
| |
| /* The value of 'extra' when the buffers were initialized */ |
| int init_extra; |
| |
| /* have_version is true if the connection's final version is known. Otherwise |
| * the version has not been negotiated yet. */ |
| char have_version; |
| |
| /* initial_handshake_complete is true if the initial handshake has |
| * completed. */ |
| char initial_handshake_complete; |
| |
| /* sniff_buffer is used by the server in the initial handshake to read a |
| * V2ClientHello before the record layer is initialized. */ |
| BUF_MEM *sniff_buffer; |
| size_t sniff_buffer_len; |
| |
| 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 */ |
| |
| /* storage for Handshake protocol data received but not yet processed by |
| * ssl3_read_bytes: */ |
| uint8_t 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 uint8_t *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; |
| /* this is set whenerver we see a change_cipher_spec message come in when we |
| * are not looking for one */ |
| 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; |
| uint8_t send_alert[2]; |
| |
| int total_renegotiations; |
| |
| /* empty_record_count is the number of consecutive empty records received. */ |
| uint8_t empty_record_count; |
| |
| /* warning_alert_count is the number of consecutive warning alerts |
| * received. */ |
| uint8_t warning_alert_count; |
| |
| /* State pertaining to the pending handshake. |
| * |
| * TODO(davidben): State is current spread all over the place. Move |
| * pending handshake state here so it can be managed separately from |
| * established connection state in case of renegotiations. */ |
| struct { |
| /* actually only need to be 16+20 for SSLv3 and 12 for TLS */ |
| uint8_t finish_md[EVP_MAX_MD_SIZE * 2]; |
| int finish_md_len; |
| uint8_t 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; |
| DH *dh; |
| |
| EC_KEY *ecdh; /* holds short lived ECDH key */ |
| |
| /* used when SSL_ST_FLUSH_DATA is entered */ |
| int next_state; |
| |
| int reuse_message; |
| |
| union { |
| /* sent is a bitset where the bits correspond to elements of kExtensions |
| * in t1_lib.c. Each bit is set if that extension was sent in a |
| * ClientHello. It's not used by servers. */ |
| uint32_t sent; |
| /* received is a bitset, like |sent|, but is used by servers to record |
| * which extensions were received from a client. */ |
| uint32_t received; |
| } extensions; |
| |
| |
| /* SNI extension */ |
| |
| /* should_ack_sni is used by a server and indicates that the SNI extension |
| * should be echoed in the ServerHello. */ |
| unsigned should_ack_sni:1; |
| |
| |
| /* Client-only: cert_req determines if a client certificate is to be sent. |
| * This is 0 if no client Certificate message is to be sent, 1 if there is |
| * a client certificate, and 2 to send an empty client Certificate |
| * message. */ |
| int cert_req; |
| |
| /* Client-only: ca_names contains the list of CAs received in a |
| * CertificateRequest message. */ |
| STACK_OF(X509_NAME) *ca_names; |
| |
| /* Client-only: certificate_types contains the set of certificate types |
| * received in a CertificateRequest message. */ |
| uint8_t *certificate_types; |
| size_t num_certificate_types; |
| |
| int key_block_length; |
| uint8_t *key_block; |
| |
| const EVP_AEAD *new_aead; |
| uint8_t new_mac_secret_len; |
| uint8_t new_fixed_iv_len; |
| uint8_t new_variable_iv_len; |
| |
| /* Server-only: cert_request is true if a client certificate was |
| * requested. */ |
| int cert_request; |
| |
| /* certificate_status_expected is true if OCSP stapling was negotiated and |
| * the server is expected to send a CertificateStatus message. */ |
| char certificate_status_expected; |
| |
| /* peer_ecpointformatlist contains the EC point formats advertised by the |
| * peer. */ |
| uint8_t *peer_ecpointformatlist; |
| size_t peer_ecpointformatlist_length; |
| |
| /* Server-only: peer_ellipticcurvelist contains the EC curve IDs advertised |
| * by the peer. This is only set on the server's end. The server does not |
| * advertise this extension to the client. */ |
| uint16_t *peer_ellipticcurvelist; |
| size_t peer_ellipticcurvelist_length; |
| |
| /* extended_master_secret indicates whether the extended master secret |
| * computation is used in this handshake. Note that this is different from |
| * whether it was used for the current session. If this is a resumption |
| * handshake then EMS might be negotiated in the client and server hello |
| * messages, but it doesn't matter if the session that's being resumed |
| * didn't use it to create the master secret initially. */ |
| char extended_master_secret; |
| |
| /* Client-only: peer_psk_identity_hint is the psk_identity_hint sent by the |
| * server when using a PSK key exchange. */ |
| char *peer_psk_identity_hint; |
| |
| /* new_mac_secret_size is unused and exists only until wpa_supplicant can |
| * be updated. It is only needed for EAP-FAST, which we don't support. */ |
| uint8_t new_mac_secret_size; |
| |
| /* Client-only: in_false_start is one if there is a pending handshake in |
| * False Start. The client may write data at this point. */ |
| char in_false_start; |
| } tmp; |
| |
| /* Connection binding to prevent renegotiation attacks */ |
| uint8_t previous_client_finished[EVP_MAX_MD_SIZE]; |
| uint8_t previous_client_finished_len; |
| uint8_t previous_server_finished[EVP_MAX_MD_SIZE]; |
| uint8_t previous_server_finished_len; |
| int send_connection_binding; /* TODOEKR */ |
| |
| /* Set if we saw the Next Protocol Negotiation extension from our peer. */ |
| int next_proto_neg_seen; |
| |
| /* 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. */ |
| uint8_t *alpn_selected; |
| size_t alpn_selected_len; |
| |
| /* In a client, this means that the server supported Channel ID and that a |
| * Channel ID was sent. In a server it means that we echoed support for |
| * Channel IDs and that tlsext_channel_id will be valid after the |
| * handshake. */ |
| char tlsext_channel_id_valid; |
| /* For a server: |
| * If |tlsext_channel_id_valid| is true, then this contains the |
| * verified Channel ID from the client: a P256 point, (x,y), where |
| * each are big-endian values. */ |
| uint8_t tlsext_channel_id[64]; |
| } SSL3_STATE; |
| |
| /* SSLv3 */ |
| /* client */ |
| /* extra state */ |
| #define SSL3_ST_CW_FLUSH (0x100 | SSL_ST_CONNECT) |
| #define SSL3_ST_FALSE_START (0x101 | SSL_ST_CONNECT) |
| /* 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_CERT_VRFY_C (0x192 | SSL_ST_CONNECT) |
| #define SSL3_ST_CW_CHANGE_A (0x1A0 | SSL_ST_CONNECT) |
| #define SSL3_ST_CW_CHANGE_B (0x1A1 | SSL_ST_CONNECT) |
| #define SSL3_ST_CW_NEXT_PROTO_A (0x200 | SSL_ST_CONNECT) |
| #define SSL3_ST_CW_NEXT_PROTO_B (0x201 | SSL_ST_CONNECT) |
| #define SSL3_ST_CW_CHANNEL_ID_A (0x220 | SSL_ST_CONNECT) |
| #define SSL3_ST_CW_CHANNEL_ID_B (0x221 | SSL_ST_CONNECT) |
| #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 (0x1C0 | 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) |
| /* read from client */ |
| #define SSL3_ST_SR_INITIAL_BYTES (0x240 | SSL_ST_ACCEPT) |
| #define SSL3_ST_SR_V2_CLIENT_HELLO (0x241 | SSL_ST_ACCEPT) |
| /* 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 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 (0x1B0 | SSL_ST_ACCEPT) |
| #define SSL3_ST_SR_NEXT_PROTO_A (0x210 | SSL_ST_ACCEPT) |
| #define SSL3_ST_SR_NEXT_PROTO_B (0x211 | SSL_ST_ACCEPT) |
| #define SSL3_ST_SR_CHANNEL_ID_A (0x230 | SSL_ST_ACCEPT) |
| #define SSL3_ST_SR_CHANNEL_ID_B (0x231 | SSL_ST_ACCEPT) |
| #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_ST_SW_SUPPLEMENTAL_DATA_A (0x220 | SSL_ST_ACCEPT) |
| #define SSL3_ST_SW_SUPPLEMENTAL_DATA_B (0x221 | 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 |
| #define SSL3_MT_SUPPLEMENTAL_DATA 23 |
| #define SSL3_MT_NEXT_PROTO 67 |
| #define SSL3_MT_ENCRYPTED_EXTENSIONS 203 |
| #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 |
