/* 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 #include #include #include #include #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 RFC 5746. */ #define SSL3_CK_SCSV 0x030000FF /* Fallback signalling cipher suite value from RFC 7507. */ #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_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; } SSL3_RECORD; typedef struct ssl3_buffer_st { /* buf is the memory allocated for this buffer. */ uint8_t *buf; /* offset is the offset into |buf| which the buffer contents start at. */ uint16_t offset; /* len is the length of the buffer contents from |buf| + |offset|. */ uint16_t len; /* cap is how much memory beyond |buf| + |offset| is available. */ uint16_t cap; } 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; /* 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; /* read_buffer holds data from the transport to be processed. */ SSL3_BUFFER read_buffer; /* write_buffer holds data to be written to the transport. */ SSL3_BUFFER write_buffer; 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; /* handshake_buffer, if non-NULL, contains the handshake transcript. */ BUF_MEM *handshake_buffer; /* handshake_hash, if initialized with an |EVP_MD|, maintains the handshake * hash. For TLS 1.1 and below, it is the SHA-1 half. */ EVP_MD_CTX handshake_hash; /* handshake_md5, if initialized with an |EVP_MD|, maintains the MD5 half of * the handshake hash for TLS 1.1 and below. */ EVP_MD_CTX handshake_md5; /* 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; union { /* sent is a bitset where the bits correspond to elements of * |client_custom_extensions| in the |SSL_CTX|. Each bit is set if that * extension was sent in a ClientHello. It's not used by servers. */ uint16_t sent; /* received is a bitset, like |sent|, but is used by servers to record * which custom extensions were received from a client. The bits here * correspond to |server_custom_extensions|. */ uint16_t received; } custom_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. (This is * used on both the client and server sides.) */ unsigned certificate_status_expected:1; /* ocsp_stapling_requested is true if a client requested OCSP stapling. */ unsigned ocsp_stapling_requested:1; /* 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; /* peer_dh_tmp, on a client, is the server's DHE public key. */ DH *peer_dh_tmp; /* peer_ecdh_tmp, on a client, is the server's ECDHE public key. */ EC_KEY *peer_ecdh_tmp; } 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) #define SSL3_ST_VERIFY_SERVER_CERT (0x102 | 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) #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_KEY_EXCH_C (0x152 | 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