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Diffstat (limited to 'src/include/openssl/ssl3.h')
-rw-r--r-- | src/include/openssl/ssl3.h | 662 |
1 files changed, 662 insertions, 0 deletions
diff --git a/src/include/openssl/ssl3.h b/src/include/openssl/ssl3.h new file mode 100644 index 0000000..8745281 --- /dev/null +++ b/src/include/openssl/ssl3.h @@ -0,0 +1,662 @@ +/* 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/buf.h> +#include <openssl/evp.h> +#include <openssl/ssl.h> + +#ifdef __cplusplus +extern "C" { +#endif + + +/* 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. */ +#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 */ + +#define SSL3_RT_MAX_COMPRESSED_LENGTH \ + (SSL3_RT_MAX_PLAIN_LENGTH + SSL3_RT_MAX_COMPRESSED_OVERHEAD) +#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 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 SSL3_AD_INAPPROPRIATE_FALLBACK 86 /* fatal */ + +typedef struct ssl3_record_st { + /*r */ int type; /* type of record */ + /*rw*/ unsigned int length; /* How many bytes available */ + /*r */ unsigned int off; /* read/write offset into 'buf' */ + /*rw*/ uint8_t *data; /* pointer to the record data */ + /*rw*/ uint8_t *input; /* where the decode bytes are */ + /*r */ unsigned long epoch; /* epoch number, needed by DTLS1 */ + /*r */ uint8_t seq_num[8]; /* sequence number, needed by DTLS1 */ +} 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; + int record_split_done; + + /* 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; + + /* 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 */ + SSL3_RECORD wrec; /* goes out from 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]; + + /* 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; + + /* 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; + + /* 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; + } 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; + /* tlsext_channel_id_new means that the updated Channel ID extension was + * negotiated. This is a temporary hack in the code to support both forms of + * Channel ID extension while we transition to the new format, which fixed a + * security issue. */ + char tlsext_channel_id_new; + /* 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_CUTTHROUGH_COMPLETE (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_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 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 (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 |