/* ssl/ssl_locl.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) 1998-2007 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. */ /* ==================================================================== * Copyright 2005 Nokia. All rights reserved. * * The portions of the attached software ("Contribution") is developed by * Nokia Corporation and is licensed pursuant to the OpenSSL open source * license. * * The Contribution, originally written by Mika Kousa and Pasi Eronen of * Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites * support (see RFC 4279) to OpenSSL. * * No patent licenses or other rights except those expressly stated in * the OpenSSL open source license shall be deemed granted or received * expressly, by implication, estoppel, or otherwise. * * No assurances are provided by Nokia that the Contribution does not * infringe the patent or other intellectual property rights of any third * party or that the license provides you with all the necessary rights * to make use of the Contribution. * * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN * ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA * SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY * OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR * OTHERWISE. */ #ifndef HEADER_SSL_LOCL_H # define HEADER_SSL_LOCL_H # include # include # include # include # include "e_os.h" # include # ifndef OPENSSL_NO_COMP # include # endif # include # include # ifndef OPENSSL_NO_RSA # include # endif # ifndef OPENSSL_NO_DSA # include # endif # include # include # include # ifdef OPENSSL_BUILD_SHLIBSSL # undef OPENSSL_EXTERN # define OPENSSL_EXTERN OPENSSL_EXPORT # endif # undef PKCS1_CHECK # define c2l(c,l) (l = ((unsigned long)(*((c)++))) , \ l|=(((unsigned long)(*((c)++)))<< 8), \ l|=(((unsigned long)(*((c)++)))<<16), \ l|=(((unsigned long)(*((c)++)))<<24)) /* NOTE - c is not incremented as per c2l */ # define c2ln(c,l1,l2,n) { \ c+=n; \ l1=l2=0; \ switch (n) { \ case 8: l2 =((unsigned long)(*(--(c))))<<24; \ case 7: l2|=((unsigned long)(*(--(c))))<<16; \ case 6: l2|=((unsigned long)(*(--(c))))<< 8; \ case 5: l2|=((unsigned long)(*(--(c)))); \ case 4: l1 =((unsigned long)(*(--(c))))<<24; \ case 3: l1|=((unsigned long)(*(--(c))))<<16; \ case 2: l1|=((unsigned long)(*(--(c))))<< 8; \ case 1: l1|=((unsigned long)(*(--(c)))); \ } \ } # define l2c(l,c) (*((c)++)=(unsigned char)(((l) )&0xff), \ *((c)++)=(unsigned char)(((l)>> 8)&0xff), \ *((c)++)=(unsigned char)(((l)>>16)&0xff), \ *((c)++)=(unsigned char)(((l)>>24)&0xff)) # define n2l(c,l) (l =((unsigned long)(*((c)++)))<<24, \ l|=((unsigned long)(*((c)++)))<<16, \ l|=((unsigned long)(*((c)++)))<< 8, \ l|=((unsigned long)(*((c)++)))) # define l2n(l,c) (*((c)++)=(unsigned char)(((l)>>24)&0xff), \ *((c)++)=(unsigned char)(((l)>>16)&0xff), \ *((c)++)=(unsigned char)(((l)>> 8)&0xff), \ *((c)++)=(unsigned char)(((l) )&0xff)) # define l2n6(l,c) (*((c)++)=(unsigned char)(((l)>>40)&0xff), \ *((c)++)=(unsigned char)(((l)>>32)&0xff), \ *((c)++)=(unsigned char)(((l)>>24)&0xff), \ *((c)++)=(unsigned char)(((l)>>16)&0xff), \ *((c)++)=(unsigned char)(((l)>> 8)&0xff), \ *((c)++)=(unsigned char)(((l) )&0xff)) # define l2n8(l,c) (*((c)++)=(unsigned char)(((l)>>56)&0xff), \ *((c)++)=(unsigned char)(((l)>>48)&0xff), \ *((c)++)=(unsigned char)(((l)>>40)&0xff), \ *((c)++)=(unsigned char)(((l)>>32)&0xff), \ *((c)++)=(unsigned char)(((l)>>24)&0xff), \ *((c)++)=(unsigned char)(((l)>>16)&0xff), \ *((c)++)=(unsigned char)(((l)>> 8)&0xff), \ *((c)++)=(unsigned char)(((l) )&0xff)) # define n2l6(c,l) (l =((BN_ULLONG)(*((c)++)))<<40, \ l|=((BN_ULLONG)(*((c)++)))<<32, \ l|=((BN_ULLONG)(*((c)++)))<<24, \ l|=((BN_ULLONG)(*((c)++)))<<16, \ l|=((BN_ULLONG)(*((c)++)))<< 8, \ l|=((BN_ULLONG)(*((c)++)))) /* NOTE - c is not incremented as per l2c */ # define l2cn(l1,l2,c,n) { \ c+=n; \ switch (n) { \ case 8: *(--(c))=(unsigned char)(((l2)>>24)&0xff); \ case 7: *(--(c))=(unsigned char)(((l2)>>16)&0xff); \ case 6: *(--(c))=(unsigned char)(((l2)>> 8)&0xff); \ case 5: *(--(c))=(unsigned char)(((l2) )&0xff); \ case 4: *(--(c))=(unsigned char)(((l1)>>24)&0xff); \ case 3: *(--(c))=(unsigned char)(((l1)>>16)&0xff); \ case 2: *(--(c))=(unsigned char)(((l1)>> 8)&0xff); \ case 1: *(--(c))=(unsigned char)(((l1) )&0xff); \ } \ } # define n2s(c,s) ((s=(((unsigned int)(c[0]))<< 8)| \ (((unsigned int)(c[1])) )),c+=2) # define s2n(s,c) ((c[0]=(unsigned char)(((s)>> 8)&0xff), \ c[1]=(unsigned char)(((s) )&0xff)),c+=2) # define n2l3(c,l) ((l =(((unsigned long)(c[0]))<<16)| \ (((unsigned long)(c[1]))<< 8)| \ (((unsigned long)(c[2])) )),c+=3) # define l2n3(l,c) ((c[0]=(unsigned char)(((l)>>16)&0xff), \ c[1]=(unsigned char)(((l)>> 8)&0xff), \ c[2]=(unsigned char)(((l) )&0xff)),c+=3) /* LOCAL STUFF */ # define SSL_DECRYPT 0 # define SSL_ENCRYPT 1 # define TWO_BYTE_BIT 0x80 # define SEC_ESC_BIT 0x40 # define TWO_BYTE_MASK 0x7fff # define THREE_BYTE_MASK 0x3fff # define INC32(a) ((a)=((a)+1)&0xffffffffL) # define DEC32(a) ((a)=((a)-1)&0xffffffffL) # define MAX_MAC_SIZE 20 /* up from 16 for SSLv3 */ /* * Define the Bitmasks for SSL_CIPHER.algorithms. * This bits are used packed as dense as possible. If new methods/ciphers * etc will be added, the bits a likely to change, so this information * is for internal library use only, even though SSL_CIPHER.algorithms * can be publicly accessed. * Use the according functions for cipher management instead. * * The bit mask handling in the selection and sorting scheme in * ssl_create_cipher_list() has only limited capabilities, reflecting * that the different entities within are mutually exclusive: * ONLY ONE BIT PER MASK CAN BE SET AT A TIME. */ /* Bits for algorithm_mkey (key exchange algorithm) */ /* RSA key exchange */ # define SSL_kRSA 0x00000001L /* DH cert, RSA CA cert */ # define SSL_kDHr 0x00000002L /* DH cert, DSA CA cert */ # define SSL_kDHd 0x00000004L /* tmp DH key no DH cert */ # define SSL_kDHE 0x00000008L /* synonym */ # define SSL_kEDH SSL_kDHE /* Kerberos5 key exchange */ # define SSL_kKRB5 0x00000010L /* ECDH cert, RSA CA cert */ # define SSL_kECDHr 0x00000020L /* ECDH cert, ECDSA CA cert */ # define SSL_kECDHe 0x00000040L /* ephemeral ECDH */ # define SSL_kECDHE 0x00000080L /* synonym */ # define SSL_kEECDH SSL_kECDHE /* PSK */ # define SSL_kPSK 0x00000100L /* GOST key exchange */ # define SSL_kGOST 0x00000200L /* SRP */ # define SSL_kSRP 0x00000400L /* Bits for algorithm_auth (server authentication) */ /* RSA auth */ # define SSL_aRSA 0x00000001L /* DSS auth */ # define SSL_aDSS 0x00000002L /* no auth (i.e. use ADH or AECDH) */ # define SSL_aNULL 0x00000004L /* Fixed DH auth (kDHd or kDHr) */ # define SSL_aDH 0x00000008L /* Fixed ECDH auth (kECDHe or kECDHr) */ # define SSL_aECDH 0x00000010L /* KRB5 auth */ # define SSL_aKRB5 0x00000020L /* ECDSA auth*/ # define SSL_aECDSA 0x00000040L /* PSK auth */ # define SSL_aPSK 0x00000080L /* GOST R 34.10-94 signature auth */ # define SSL_aGOST94 0x00000100L /* GOST R 34.10-2001 signature auth */ # define SSL_aGOST01 0x00000200L /* SRP auth */ # define SSL_aSRP 0x00000400L /* Bits for algorithm_enc (symmetric encryption) */ # define SSL_DES 0x00000001L # define SSL_3DES 0x00000002L # define SSL_RC4 0x00000004L # define SSL_RC2 0x00000008L # define SSL_IDEA 0x00000010L # define SSL_eNULL 0x00000020L # define SSL_AES128 0x00000040L # define SSL_AES256 0x00000080L # define SSL_CAMELLIA128 0x00000100L # define SSL_CAMELLIA256 0x00000200L # define SSL_eGOST2814789CNT 0x00000400L # define SSL_SEED 0x00000800L # define SSL_AES128GCM 0x00001000L # define SSL_AES256GCM 0x00002000L # define SSL_AES (SSL_AES128|SSL_AES256|SSL_AES128GCM|SSL_AES256GCM) # define SSL_CAMELLIA (SSL_CAMELLIA128|SSL_CAMELLIA256) /* Bits for algorithm_mac (symmetric authentication) */ # define SSL_MD5 0x00000001L # define SSL_SHA1 0x00000002L # define SSL_GOST94 0x00000004L # define SSL_GOST89MAC 0x00000008L # define SSL_SHA256 0x00000010L # define SSL_SHA384 0x00000020L /* Not a real MAC, just an indication it is part of cipher */ # define SSL_AEAD 0x00000040L /* Bits for algorithm_ssl (protocol version) */ # define SSL_SSLV3 0x00000002L # define SSL_TLSV1 SSL_SSLV3/* for now */ # define SSL_TLSV1_2 0x00000004L /* Bits for algorithm2 (handshake digests and other extra flags) */ # define SSL_HANDSHAKE_MAC_MD5 0x10 # define SSL_HANDSHAKE_MAC_SHA 0x20 # define SSL_HANDSHAKE_MAC_GOST94 0x40 # define SSL_HANDSHAKE_MAC_SHA256 0x80 # define SSL_HANDSHAKE_MAC_SHA384 0x100 # define SSL_HANDSHAKE_MAC_DEFAULT (SSL_HANDSHAKE_MAC_MD5 | SSL_HANDSHAKE_MAC_SHA) /* * When adding new digest in the ssl_ciph.c and increment SSM_MD_NUM_IDX make * sure to update this constant too */ # define SSL_MAX_DIGEST 6 # define TLS1_PRF_DGST_SHIFT 10 # define TLS1_PRF_MD5 (SSL_HANDSHAKE_MAC_MD5 << TLS1_PRF_DGST_SHIFT) # define TLS1_PRF_SHA1 (SSL_HANDSHAKE_MAC_SHA << TLS1_PRF_DGST_SHIFT) # define TLS1_PRF_SHA256 (SSL_HANDSHAKE_MAC_SHA256 << TLS1_PRF_DGST_SHIFT) # define TLS1_PRF_SHA384 (SSL_HANDSHAKE_MAC_SHA384 << TLS1_PRF_DGST_SHIFT) # define TLS1_PRF_GOST94 (SSL_HANDSHAKE_MAC_GOST94 << TLS1_PRF_DGST_SHIFT) # define TLS1_PRF (TLS1_PRF_MD5 | TLS1_PRF_SHA1) /* * Stream MAC for GOST ciphersuites from cryptopro draft (currently this also * goes into algorithm2) */ # define TLS1_STREAM_MAC 0x04 /* * Export and cipher strength information. For each cipher we have to decide * whether it is exportable or not. This information is likely to change * over time, since the export control rules are no static technical issue. * * Independent of the export flag the cipher strength is sorted into classes. * SSL_EXP40 was denoting the 40bit US export limit of past times, which now * is at 56bit (SSL_EXP56). If the exportable cipher class is going to change * again (eg. to 64bit) the use of "SSL_EXP*" becomes blurred even more, * since SSL_EXP64 could be similar to SSL_LOW. * For this reason SSL_MICRO and SSL_MINI macros are included to widen the * namespace of SSL_LOW-SSL_HIGH to lower values. As development of speed * and ciphers goes, another extension to SSL_SUPER and/or SSL_ULTRA would * be possible. */ # define SSL_EXP_MASK 0x00000003L # define SSL_STRONG_MASK 0x000001fcL # define SSL_NOT_EXP 0x00000001L # define SSL_EXPORT 0x00000002L # define SSL_STRONG_NONE 0x00000004L # define SSL_EXP40 0x00000008L # define SSL_MICRO (SSL_EXP40) # define SSL_EXP56 0x00000010L # define SSL_MINI (SSL_EXP56) # define SSL_LOW 0x00000020L # define SSL_MEDIUM 0x00000040L # define SSL_HIGH 0x00000080L # define SSL_FIPS 0x00000100L /* we have used 000001ff - 23 bits left to go */ /*- * Macros to check the export status and cipher strength for export ciphers. * Even though the macros for EXPORT and EXPORT40/56 have similar names, * their meaning is different: * *_EXPORT macros check the 'exportable' status. * *_EXPORT40/56 macros are used to check whether a certain cipher strength * is given. * Since the SSL_IS_EXPORT* and SSL_EXPORT* macros depend on the correct * algorithm structure element to be passed (algorithms, algo_strength) and no * typechecking can be done as they are all of type unsigned long, their * direct usage is discouraged. * Use the SSL_C_* macros instead. */ # define SSL_IS_EXPORT(a) ((a)&SSL_EXPORT) # define SSL_IS_EXPORT56(a) ((a)&SSL_EXP56) # define SSL_IS_EXPORT40(a) ((a)&SSL_EXP40) # define SSL_C_IS_EXPORT(c) SSL_IS_EXPORT((c)->algo_strength) # define SSL_C_IS_EXPORT56(c) SSL_IS_EXPORT56((c)->algo_strength) # define SSL_C_IS_EXPORT40(c) SSL_IS_EXPORT40((c)->algo_strength) # define SSL_EXPORT_KEYLENGTH(a,s) (SSL_IS_EXPORT40(s) ? 5 : \ (a) == SSL_DES ? 8 : 7) # define SSL_EXPORT_PKEYLENGTH(a) (SSL_IS_EXPORT40(a) ? 512 : 1024) # define SSL_C_EXPORT_KEYLENGTH(c) SSL_EXPORT_KEYLENGTH((c)->algorithm_enc, \ (c)->algo_strength) # define SSL_C_EXPORT_PKEYLENGTH(c) SSL_EXPORT_PKEYLENGTH((c)->algo_strength) /* Check if an SSL structure is using DTLS */ # define SSL_IS_DTLS(s) (s->method->ssl3_enc->enc_flags & SSL_ENC_FLAG_DTLS) /* See if we need explicit IV */ # define SSL_USE_EXPLICIT_IV(s) \ (s->method->ssl3_enc->enc_flags & SSL_ENC_FLAG_EXPLICIT_IV) /* * See if we use signature algorithms extension and signature algorithm * before signatures. */ # define SSL_USE_SIGALGS(s) \ (s->method->ssl3_enc->enc_flags & SSL_ENC_FLAG_SIGALGS) /* * Allow TLS 1.2 ciphersuites: applies to DTLS 1.2 as well as TLS 1.2: may * apply to others in future. */ # define SSL_USE_TLS1_2_CIPHERS(s) \ (s->method->ssl3_enc->enc_flags & SSL_ENC_FLAG_TLS1_2_CIPHERS) /* * Determine if a client can use TLS 1.2 ciphersuites: can't rely on method * flags because it may not be set to correct version yet. */ # define SSL_CLIENT_USE_TLS1_2_CIPHERS(s) \ ((SSL_IS_DTLS(s) && s->client_version <= DTLS1_2_VERSION) || \ (!SSL_IS_DTLS(s) && s->client_version >= TLS1_2_VERSION)) # ifdef TLSEXT_TYPE_encrypt_then_mac # define SSL_USE_ETM(s) (s->s3->flags & TLS1_FLAGS_ENCRYPT_THEN_MAC) # else # define SSL_USE_ETM(s) (0) # endif /* Mostly for SSLv3 */ # define SSL_PKEY_RSA_ENC 0 # define SSL_PKEY_RSA_SIGN 1 # define SSL_PKEY_DSA_SIGN 2 # define SSL_PKEY_DH_RSA 3 # define SSL_PKEY_DH_DSA 4 # define SSL_PKEY_ECC 5 # define SSL_PKEY_GOST94 6 # define SSL_PKEY_GOST01 7 # define SSL_PKEY_NUM 8 /*- * SSL_kRSA <- RSA_ENC | (RSA_TMP & RSA_SIGN) | * <- (EXPORT & (RSA_ENC | RSA_TMP) & RSA_SIGN) * SSL_kDH <- DH_ENC & (RSA_ENC | RSA_SIGN | DSA_SIGN) * SSL_kDHE <- RSA_ENC | RSA_SIGN | DSA_SIGN * SSL_aRSA <- RSA_ENC | RSA_SIGN * SSL_aDSS <- DSA_SIGN */ /*- #define CERT_INVALID 0 #define CERT_PUBLIC_KEY 1 #define CERT_PRIVATE_KEY 2 */ /* used to hold info on the particular ciphers used */ struct ssl_cipher_st { int valid; const char *name; /* text name */ unsigned long id; /* id, 4 bytes, first is version */ /* * changed in 0.9.9: these four used to be portions of a single value * 'algorithms' */ unsigned long algorithm_mkey; /* key exchange algorithm */ unsigned long algorithm_auth; /* server authentication */ unsigned long algorithm_enc; /* symmetric encryption */ unsigned long algorithm_mac; /* symmetric authentication */ unsigned long algorithm_ssl; /* (major) protocol version */ unsigned long algo_strength; /* strength and export flags */ unsigned long algorithm2; /* Extra flags */ int strength_bits; /* Number of bits really used */ int alg_bits; /* Number of bits for algorithm */ }; /* Used to hold functions for SSLv2 or SSLv3/TLSv1 functions */ struct ssl_method_st { int version; int (*ssl_new) (SSL *s); void (*ssl_clear) (SSL *s); void (*ssl_free) (SSL *s); int (*ssl_accept) (SSL *s); int (*ssl_connect) (SSL *s); int (*ssl_read) (SSL *s, void *buf, int len); int (*ssl_peek) (SSL *s, void *buf, int len); int (*ssl_write) (SSL *s, const void *buf, int len); int (*ssl_shutdown) (SSL *s); int (*ssl_renegotiate) (SSL *s); int (*ssl_renegotiate_check) (SSL *s); long (*ssl_get_message) (SSL *s, int st1, int stn, int mt, long max, int *ok); int (*ssl_read_bytes) (SSL *s, int type, unsigned char *buf, int len, int peek); int (*ssl_write_bytes) (SSL *s, int type, const void *buf_, int len); int (*ssl_dispatch_alert) (SSL *s); long (*ssl_ctrl) (SSL *s, int cmd, long larg, void *parg); long (*ssl_ctx_ctrl) (SSL_CTX *ctx, int cmd, long larg, void *parg); const SSL_CIPHER *(*get_cipher_by_char) (const unsigned char *ptr); int (*put_cipher_by_char) (const SSL_CIPHER *cipher, unsigned char *ptr); int (*ssl_pending) (const SSL *s); int (*num_ciphers) (void); const SSL_CIPHER *(*get_cipher) (unsigned ncipher); const struct ssl_method_st *(*get_ssl_method) (int version); long (*get_timeout) (void); const struct ssl3_enc_method *ssl3_enc; /* Extra SSLv3/TLS stuff */ int (*ssl_version) (void); long (*ssl_callback_ctrl) (SSL *s, int cb_id, void (*fp) (void)); long (*ssl_ctx_callback_ctrl) (SSL_CTX *s, int cb_id, void (*fp) (void)); }; /*- * Lets make this into an ASN.1 type structure as follows * SSL_SESSION_ID ::= SEQUENCE { * version INTEGER, -- structure version number * SSLversion INTEGER, -- SSL version number * Cipher OCTET STRING, -- the 3 byte cipher ID * Session_ID OCTET STRING, -- the Session ID * Master_key OCTET STRING, -- the master key * KRB5_principal OCTET STRING -- optional Kerberos principal * Key_Arg [ 0 ] IMPLICIT OCTET STRING, -- the optional Key argument * Time [ 1 ] EXPLICIT INTEGER, -- optional Start Time * Timeout [ 2 ] EXPLICIT INTEGER, -- optional Timeout ins seconds * Peer [ 3 ] EXPLICIT X509, -- optional Peer Certificate * Session_ID_context [ 4 ] EXPLICIT OCTET STRING, -- the Session ID context * Verify_result [ 5 ] EXPLICIT INTEGER, -- X509_V_... code for `Peer' * HostName [ 6 ] EXPLICIT OCTET STRING, -- optional HostName from servername TLS extension * PSK_identity_hint [ 7 ] EXPLICIT OCTET STRING, -- optional PSK identity hint * PSK_identity [ 8 ] EXPLICIT OCTET STRING, -- optional PSK identity * Ticket_lifetime_hint [9] EXPLICIT INTEGER, -- server's lifetime hint for session ticket * Ticket [10] EXPLICIT OCTET STRING, -- session ticket (clients only) * Compression_meth [11] EXPLICIT OCTET STRING, -- optional compression method * SRP_username [ 12 ] EXPLICIT OCTET STRING -- optional SRP username * flags [ 13 ] EXPLICIT INTEGER -- optional flags * } * Look in ssl/ssl_asn1.c for more details * I'm using EXPLICIT tags so I can read the damn things using asn1parse :-). */ struct ssl_session_st { int ssl_version; /* what ssl version session info is being * kept in here? */ int master_key_length; unsigned char master_key[SSL_MAX_MASTER_KEY_LENGTH]; /* session_id - valid? */ unsigned int session_id_length; unsigned char session_id[SSL_MAX_SSL_SESSION_ID_LENGTH]; /* * this is used to determine whether the session is being reused in the * appropriate context. It is up to the application to set this, via * SSL_new */ unsigned int sid_ctx_length; unsigned char sid_ctx[SSL_MAX_SID_CTX_LENGTH]; # ifndef OPENSSL_NO_KRB5 unsigned int krb5_client_princ_len; unsigned char krb5_client_princ[SSL_MAX_KRB5_PRINCIPAL_LENGTH]; # endif /* OPENSSL_NO_KRB5 */ # ifndef OPENSSL_NO_PSK char *psk_identity_hint; char *psk_identity; # endif /* * Used to indicate that session resumption is not allowed. Applications * can also set this bit for a new session via not_resumable_session_cb * to disable session caching and tickets. */ int not_resumable; /* The cert is the certificate used to establish this connection */ struct sess_cert_st /* SESS_CERT */ *sess_cert; /* * This is the cert for the other end. On clients, it will be the same as * sess_cert->peer_key->x509 (the latter is not enough as sess_cert is * not retained in the external representation of sessions, see * ssl_asn1.c). */ X509 *peer; /* * when app_verify_callback accepts a session where the peer's * certificate is not ok, we must remember the error for session reuse: */ long verify_result; /* only for servers */ int references; long timeout; long time; unsigned int compress_meth; /* Need to lookup the method */ const SSL_CIPHER *cipher; unsigned long cipher_id; /* when ASN.1 loaded, this needs to be used * to load the 'cipher' structure */ STACK_OF(SSL_CIPHER) *ciphers; /* shared ciphers? */ CRYPTO_EX_DATA ex_data; /* application specific data */ /* * These are used to make removal of session-ids more efficient and to * implement a maximum cache size. */ struct ssl_session_st *prev, *next; # ifndef OPENSSL_NO_TLSEXT char *tlsext_hostname; # ifndef OPENSSL_NO_EC size_t tlsext_ecpointformatlist_length; unsigned char *tlsext_ecpointformatlist; /* peer's list */ size_t tlsext_ellipticcurvelist_length; unsigned char *tlsext_ellipticcurvelist; /* peer's list */ # endif /* OPENSSL_NO_EC */ /* RFC4507 info */ unsigned char *tlsext_tick; /* Session ticket */ size_t tlsext_ticklen; /* Session ticket length */ long tlsext_tick_lifetime_hint; /* Session lifetime hint in seconds */ # endif # ifndef OPENSSL_NO_SRP char *srp_username; # endif long flags; }; /* Extended master secret support */ # define SSL_SESS_FLAG_EXTMS 0x1 # ifndef OPENSSL_NO_SRP typedef struct srp_ctx_st { /* param for all the callbacks */ void *SRP_cb_arg; /* set client Hello login callback */ int (*TLS_ext_srp_username_callback) (SSL *, int *, void *); /* set SRP N/g param callback for verification */ int (*SRP_verify_param_callback) (SSL *, void *); /* set SRP client passwd callback */ char *(*SRP_give_srp_client_pwd_callback) (SSL *, void *); char *login; BIGNUM *N, *g, *s, *B, *A; BIGNUM *a, *b, *v; char *info; int strength; unsigned long srp_Mask; } SRP_CTX; # endif struct ssl_comp_st { int id; const char *name; # ifndef OPENSSL_NO_COMP COMP_METHOD *method; # else char *method; # endif }; DECLARE_STACK_OF(SSL_COMP) DECLARE_LHASH_OF(SSL_SESSION); struct ssl_ctx_st { const SSL_METHOD *method; STACK_OF(SSL_CIPHER) *cipher_list; /* same as above but sorted for lookup */ STACK_OF(SSL_CIPHER) *cipher_list_by_id; struct x509_store_st /* X509_STORE */ *cert_store; LHASH_OF(SSL_SESSION) *sessions; /* * Most session-ids that will be cached, default is * SSL_SESSION_CACHE_MAX_SIZE_DEFAULT. 0 is unlimited. */ unsigned long session_cache_size; struct ssl_session_st *session_cache_head; struct ssl_session_st *session_cache_tail; /* * This can have one of 2 values, ored together, SSL_SESS_CACHE_CLIENT, * SSL_SESS_CACHE_SERVER, Default is SSL_SESSION_CACHE_SERVER, which * means only SSL_accept which cache SSL_SESSIONS. */ int session_cache_mode; /* * If timeout is not 0, it is the default timeout value set when * SSL_new() is called. This has been put in to make life easier to set * things up */ long session_timeout; /* * If this callback is not null, it will be called each time a session id * is added to the cache. If this function returns 1, it means that the * callback will do a SSL_SESSION_free() when it has finished using it. * Otherwise, on 0, it means the callback has finished with it. If * remove_session_cb is not null, it will be called when a session-id is * removed from the cache. After the call, OpenSSL will * SSL_SESSION_free() it. */ int (*new_session_cb) (struct ssl_st *ssl, SSL_SESSION *sess); void (*remove_session_cb) (struct ssl_ctx_st *ctx, SSL_SESSION *sess); SSL_SESSION *(*get_session_cb) (struct ssl_st *ssl, unsigned char *data, int len, int *copy); struct { int sess_connect; /* SSL new conn - started */ int sess_connect_renegotiate; /* SSL reneg - requested */ int sess_connect_good; /* SSL new conne/reneg - finished */ int sess_accept; /* SSL new accept - started */ int sess_accept_renegotiate; /* SSL reneg - requested */ int sess_accept_good; /* SSL accept/reneg - finished */ int sess_miss; /* session lookup misses */ int sess_timeout; /* reuse attempt on timeouted session */ int sess_cache_full; /* session removed due to full cache */ int sess_hit; /* session reuse actually done */ int sess_cb_hit; /* session-id that was not in the cache was * passed back via the callback. This * indicates that the application is * supplying session-id's from other * processes - spooky :-) */ } stats; int references; /* if defined, these override the X509_verify_cert() calls */ int (*app_verify_callback) (X509_STORE_CTX *, void *); void *app_verify_arg; /* * before OpenSSL 0.9.7, 'app_verify_arg' was ignored * ('app_verify_callback' was called with just one argument) */ /* Default password callback. */ pem_password_cb *default_passwd_callback; /* Default password callback user data. */ void *default_passwd_callback_userdata; /* get client cert callback */ int (*client_cert_cb) (SSL *ssl, X509 **x509, EVP_PKEY **pkey); /* cookie generate callback */ int (*app_gen_cookie_cb) (SSL *ssl, unsigned char *cookie, unsigned int *cookie_len); /* verify cookie callback */ int (*app_verify_cookie_cb) (SSL *ssl, unsigned char *cookie, unsigned int cookie_len); CRYPTO_EX_DATA ex_data; const EVP_MD *md5; /* For SSLv3/TLSv1 'ssl3-md5' */ const EVP_MD *sha1; /* For SSLv3/TLSv1 'ssl3->sha1' */ STACK_OF(X509) *extra_certs; STACK_OF(SSL_COMP) *comp_methods; /* stack of SSL_COMP, SSLv3/TLSv1 */ /* Default values used when no per-SSL value is defined follow */ /* used if SSL's info_callback is NULL */ void (*info_callback) (const SSL *ssl, int type, int val); /* what we put in client cert requests */ STACK_OF(X509_NAME) *client_CA; /* * Default values to use in SSL structures follow (these are copied by * SSL_new) */ unsigned long options; unsigned long mode; long max_cert_list; struct cert_st /* CERT */ *cert; int read_ahead; /* callback that allows applications to peek at protocol messages */ void (*msg_callback) (int write_p, int version, int content_type, const void *buf, size_t len, SSL *ssl, void *arg); void *msg_callback_arg; int verify_mode; unsigned int sid_ctx_length; unsigned char sid_ctx[SSL_MAX_SID_CTX_LENGTH]; /* called 'verify_callback' in the SSL */ int (*default_verify_callback) (int ok, X509_STORE_CTX *ctx); /* Default generate session ID callback. */ GEN_SESSION_CB generate_session_id; X509_VERIFY_PARAM *param; int quiet_shutdown; /* * Maximum amount of data to send in one fragment. actual record size can * be more than this due to padding and MAC overheads. */ unsigned int max_send_fragment; # ifndef OPENSSL_NO_ENGINE /* * Engine to pass requests for client certs to */ ENGINE *client_cert_engine; # endif # ifndef OPENSSL_NO_TLSEXT /* TLS extensions servername callback */ int (*tlsext_servername_callback) (SSL *, int *, void *); void *tlsext_servername_arg; /* RFC 4507 session ticket keys */ unsigned char tlsext_tick_key_name[16]; unsigned char tlsext_tick_hmac_key[16]; unsigned char tlsext_tick_aes_key[16]; /* Callback to support customisation of ticket key setting */ int (*tlsext_ticket_key_cb) (SSL *ssl, unsigned char *name, unsigned char *iv, EVP_CIPHER_CTX *ectx, HMAC_CTX *hctx, int enc); /* certificate status request info */ /* Callback for status request */ int (*tlsext_status_cb) (SSL *ssl, void *arg); void *tlsext_status_arg; # endif # ifndef OPENSSL_NO_PSK char *psk_identity_hint; unsigned int (*psk_client_callback) (SSL *ssl, const char *hint, char *identity, unsigned int max_identity_len, unsigned char *psk, unsigned int max_psk_len); unsigned int (*psk_server_callback) (SSL *ssl, const char *identity, unsigned char *psk, unsigned int max_psk_len); # endif # ifndef OPENSSL_NO_SRP SRP_CTX srp_ctx; /* ctx for SRP authentication */ # endif # ifndef OPENSSL_NO_TLSEXT # ifndef OPENSSL_NO_NEXTPROTONEG /* Next protocol negotiation information */ /* (for experimental NPN extension). */ /* * For a server, this contains a callback function by which the set of * advertised protocols can be provided. */ int (*next_protos_advertised_cb) (SSL *s, const unsigned char **buf, unsigned int *len, void *arg); void *next_protos_advertised_cb_arg; /* * For a client, this contains a callback function that selects the next * protocol from the list provided by the server. */ int (*next_proto_select_cb) (SSL *s, unsigned char **out, unsigned char *outlen, const unsigned char *in, unsigned int inlen, void *arg); void *next_proto_select_cb_arg; # endif /* * ALPN information (we are in the process of transitioning from NPN to * ALPN.) */ /*- * For a server, this contains a callback function that allows the * server to select the protocol for the connection. * out: on successful return, this must point to the raw protocol * name (without the length prefix). * outlen: on successful return, this contains the length of |*out|. * in: points to the client's list of supported protocols in * wire-format. * inlen: the length of |in|. */ int (*alpn_select_cb) (SSL *s, const unsigned char **out, unsigned char *outlen, const unsigned char *in, unsigned int inlen, void *arg); void *alpn_select_cb_arg; /* * For a client, this contains the list of supported protocols in wire * format. */ unsigned char *alpn_client_proto_list; unsigned alpn_client_proto_list_len; /* SRTP profiles we are willing to do from RFC 5764 */ STACK_OF(SRTP_PROTECTION_PROFILE) *srtp_profiles; # endif /* * Callback for disabling session caching and ticket support on a session * basis, depending on the chosen cipher. */ int (*not_resumable_session_cb) (SSL *ssl, int is_forward_secure); # ifndef OPENSSL_NO_EC /* EC extension values inherited by SSL structure */ size_t tlsext_ecpointformatlist_length; unsigned char *tlsext_ecpointformatlist; size_t tlsext_ellipticcurvelist_length; unsigned char *tlsext_ellipticcurvelist; # endif /* OPENSSL_NO_EC */ }; struct ssl_st { /* * protocol version (one of SSL2_VERSION, SSL3_VERSION, TLS1_VERSION, * DTLS1_VERSION) */ int version; /* SSL_ST_CONNECT or SSL_ST_ACCEPT */ int type; /* SSLv3 */ const SSL_METHOD *method; /* * There are 2 BIO's even though they are normally both the same. This * is so data can be read and written to different handlers */ /* used by SSL_read */ BIO *rbio; /* used by SSL_write */ BIO *wbio; /* used during session-id reuse to concatenate messages */ BIO *bbio; /* * This holds a variable that indicates what we were doing when a 0 or -1 * is returned. This is needed for non-blocking IO so we know what * request needs re-doing when in SSL_accept or SSL_connect */ int rwstate; /* true when we are actually in SSL_accept() or SSL_connect() */ int in_handshake; int (*handshake_func) (SSL *); /* * Imagine that here's a boolean member "init" that is switched as soon * as SSL_set_{accept/connect}_state is called for the first time, so * that "state" and "handshake_func" are properly initialized. But as * handshake_func is == 0 until then, we use this test instead of an * "init" member. */ /* are we the server side? - mostly used by SSL_clear */ int server; /* * Generate a new session or reuse an old one. * NB: For servers, the 'new' session may actually be a previously * cached session or even the previous session unless * SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION is set */ int new_session; /* don't send shutdown packets */ int quiet_shutdown; /* we have shut things down, 0x01 sent, 0x02 for received */ int shutdown; /* where we are */ int state; /* where we are when reading */ int rstate; BUF_MEM *init_buf; /* buffer used during init */ void *init_msg; /* pointer to handshake message body, set by * ssl3_get_message() */ int init_num; /* amount read/written */ int init_off; /* amount read/written */ /* used internally to point at a raw packet */ unsigned char *packet; unsigned int packet_length; struct ssl3_state_st *s3; /* SSLv3 variables */ struct dtls1_state_st *d1; /* DTLSv1 variables */ int read_ahead; /* Read as many input bytes as possible (for * non-blocking reads) */ /* callback that allows applications to peek at protocol messages */ void (*msg_callback) (int write_p, int version, int content_type, const void *buf, size_t len, SSL *ssl, void *arg); void *msg_callback_arg; int hit; /* reusing a previous session */ X509_VERIFY_PARAM *param; /* crypto */ STACK_OF(SSL_CIPHER) *cipher_list; STACK_OF(SSL_CIPHER) *cipher_list_by_id; /* * These are the ones being used, the ones in SSL_SESSION are the ones to * be 'copied' into these ones */ int mac_flags; EVP_CIPHER_CTX *enc_read_ctx; /* cryptographic state */ EVP_MD_CTX *read_hash; /* used for mac generation */ # ifndef OPENSSL_NO_COMP COMP_CTX *expand; /* uncompress */ # else char *expand; # endif EVP_CIPHER_CTX *enc_write_ctx; /* cryptographic state */ EVP_MD_CTX *write_hash; /* used for mac generation */ # ifndef OPENSSL_NO_COMP COMP_CTX *compress; /* compression */ # else char *compress; # endif /* session info */ /* client cert? */ /* This is used to hold the server certificate used */ struct cert_st /* CERT */ *cert; /* * the session_id_context is used to ensure sessions are only reused in * the appropriate context */ unsigned int sid_ctx_length; unsigned char sid_ctx[SSL_MAX_SID_CTX_LENGTH]; /* This can also be in the session once a session is established */ SSL_SESSION *session; /* Default generate session ID callback. */ GEN_SESSION_CB generate_session_id; /* Used in SSL3 */ /* * 0 don't care about verify failure. * 1 fail if verify fails */ int verify_mode; /* fail if callback returns 0 */ int (*verify_callback) (int ok, X509_STORE_CTX *ctx); /* optional informational callback */ void (*info_callback) (const SSL *ssl, int type, int val); /* error bytes to be written */ int error; /* actual code */ int error_code; # ifndef OPENSSL_NO_KRB5 /* Kerberos 5 context */ KSSL_CTX *kssl_ctx; # endif /* OPENSSL_NO_KRB5 */ # ifndef OPENSSL_NO_PSK unsigned int (*psk_client_callback) (SSL *ssl, const char *hint, char *identity, unsigned int max_identity_len, unsigned char *psk, unsigned int max_psk_len); unsigned int (*psk_server_callback) (SSL *ssl, const char *identity, unsigned char *psk, unsigned int max_psk_len); # endif SSL_CTX *ctx; /* * set this flag to 1 and a sleep(1) is put into all SSL_read() and * SSL_write() calls, good for nbio debuging :-) */ int debug; /* extra application data */ long verify_result; CRYPTO_EX_DATA ex_data; /* for server side, keep the list of CA_dn we can use */ STACK_OF(X509_NAME) *client_CA; int references; /* protocol behaviour */ unsigned long options; /* API behaviour */ unsigned long mode; long max_cert_list; int first_packet; /* what was passed, used for SSLv3/TLS rollback check */ int client_version; unsigned int max_send_fragment; # ifndef OPENSSL_NO_TLSEXT /* TLS extension debug callback */ void (*tlsext_debug_cb) (SSL *s, int client_server, int type, unsigned char *data, int len, void *arg); void *tlsext_debug_arg; char *tlsext_hostname; /*- * no further mod of servername * 0 : call the servername extension callback. * 1 : prepare 2, allow last ack just after in server callback. * 2 : don't call servername callback, no ack in server hello */ int servername_done; /* certificate status request info */ /* Status type or -1 if no status type */ int tlsext_status_type; /* Expect OCSP CertificateStatus message */ int tlsext_status_expected; /* OCSP status request only */ STACK_OF(OCSP_RESPID) *tlsext_ocsp_ids; X509_EXTENSIONS *tlsext_ocsp_exts; /* OCSP response received or to be sent */ unsigned char *tlsext_ocsp_resp; int tlsext_ocsp_resplen; /* RFC4507 session ticket expected to be received or sent */ int tlsext_ticket_expected; # ifndef OPENSSL_NO_EC size_t tlsext_ecpointformatlist_length; /* our list */ unsigned char *tlsext_ecpointformatlist; size_t tlsext_ellipticcurvelist_length; /* our list */ unsigned char *tlsext_ellipticcurvelist; # endif /* OPENSSL_NO_EC */ /* TLS Session Ticket extension override */ TLS_SESSION_TICKET_EXT *tlsext_session_ticket; /* TLS Session Ticket extension callback */ tls_session_ticket_ext_cb_fn tls_session_ticket_ext_cb; void *tls_session_ticket_ext_cb_arg; /* TLS pre-shared secret session resumption */ tls_session_secret_cb_fn tls_session_secret_cb; void *tls_session_secret_cb_arg; SSL_CTX *initial_ctx; /* initial ctx, used to store sessions */ # ifndef OPENSSL_NO_NEXTPROTONEG /* * Next protocol negotiation. For the client, this is the protocol that * we sent in NextProtocol and is set when handling ServerHello * extensions. For a server, this is the client's selected_protocol from * NextProtocol and is set when handling the NextProtocol message, before * the Finished message. */ unsigned char *next_proto_negotiated; unsigned char next_proto_negotiated_len; # endif # define session_ctx initial_ctx /* What we'll do */ STACK_OF(SRTP_PROTECTION_PROFILE) *srtp_profiles; /* What's been chosen */ SRTP_PROTECTION_PROFILE *srtp_profile; /*- * Is use of the Heartbeat extension negotiated? * 0: disabled * 1: enabled * 2: enabled, but not allowed to send Requests */ unsigned int tlsext_heartbeat; /* Indicates if a HeartbeatRequest is in flight */ unsigned int tlsext_hb_pending; /* HeartbeatRequest sequence number */ unsigned int tlsext_hb_seq; /* * For a client, this contains the list of supported protocols in wire * format. */ unsigned char *alpn_client_proto_list; unsigned alpn_client_proto_list_len; # else # define session_ctx ctx # endif /* OPENSSL_NO_TLSEXT */ /*- * 1 if we are renegotiating. * 2 if we are a server and are inside a handshake * (i.e. not just sending a HelloRequest) */ int renegotiate; # ifndef OPENSSL_NO_SRP /* ctx for SRP authentication */ SRP_CTX srp_ctx; # endif /* * Callback for disabling session caching and ticket support on a session * basis, depending on the chosen cipher. */ int (*not_resumable_session_cb) (SSL *ssl, int is_forward_secure); }; typedef struct ssl3_record_st { /* type of record */ /* * r */ int type; /* How many bytes available */ /* * rw */ unsigned int length; /* * How many bytes were available before padding was removed? This is used * to implement the MAC check in constant time for CBC records. */ /* * rw */ unsigned int orig_len; /* 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; 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; 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 /* * 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; # 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 */ # endif /* !OPENSSL_NO_TLSEXT */ } SSL3_STATE; /* DTLS structures */ # ifndef OPENSSL_NO_SCTP # define DTLS1_SCTP_AUTH_LABEL "EXPORTER_DTLS_OVER_SCTP" # endif /* Max MTU overhead we know about so far is 40 for IPv6 + 8 for UDP */ # define DTLS1_MAX_MTU_OVERHEAD 48 typedef struct dtls1_bitmap_st { unsigned long map; /* track 32 packets on 32-bit systems and 64 * - on 64-bit systems */ unsigned char max_seq_num[8]; /* max record number seen so far, 64-bit * value in big-endian encoding */ } DTLS1_BITMAP; struct dtls1_retransmit_state { EVP_CIPHER_CTX *enc_write_ctx; /* cryptographic state */ EVP_MD_CTX *write_hash; /* used for mac generation */ # ifndef OPENSSL_NO_COMP COMP_CTX *compress; /* compression */ # else char *compress; # endif SSL_SESSION *session; unsigned short epoch; }; struct hm_header_st { unsigned char type; unsigned long msg_len; unsigned short seq; unsigned long frag_off; unsigned long frag_len; unsigned int is_ccs; struct dtls1_retransmit_state saved_retransmit_state; }; struct ccs_header_st { unsigned char type; unsigned short seq; }; struct dtls1_timeout_st { /* Number of read timeouts so far */ unsigned int read_timeouts; /* Number of write timeouts so far */ unsigned int write_timeouts; /* Number of alerts received so far */ unsigned int num_alerts; }; typedef struct record_pqueue_st { unsigned short epoch; pqueue q; } record_pqueue; typedef struct hm_fragment_st { struct hm_header_st msg_header; unsigned char *fragment; unsigned char *reassembly; } hm_fragment; typedef struct dtls1_state_st { unsigned int send_cookie; unsigned char cookie[DTLS1_COOKIE_LENGTH]; unsigned char rcvd_cookie[DTLS1_COOKIE_LENGTH]; unsigned int cookie_len; /* * The current data and handshake epoch. This is initially * undefined, and starts at zero once the initial handshake is * completed */ unsigned short r_epoch; unsigned short w_epoch; /* records being received in the current epoch */ DTLS1_BITMAP bitmap; /* renegotiation starts a new set of sequence numbers */ DTLS1_BITMAP next_bitmap; /* handshake message numbers */ unsigned short handshake_write_seq; unsigned short next_handshake_write_seq; unsigned short handshake_read_seq; /* save last sequence number for retransmissions */ unsigned char last_write_sequence[8]; /* Received handshake records (processed and unprocessed) */ record_pqueue unprocessed_rcds; record_pqueue processed_rcds; /* Buffered handshake messages */ pqueue buffered_messages; /* Buffered (sent) handshake records */ pqueue sent_messages; /* * Buffered application records. Only for records between CCS and * Finished to prevent either protocol violation or unnecessary message * loss. */ record_pqueue buffered_app_data; /* Is set when listening for new connections with dtls1_listen() */ unsigned int listen; unsigned int link_mtu; /* max on-the-wire DTLS packet size */ unsigned int mtu; /* max DTLS packet size */ struct hm_header_st w_msg_hdr; struct hm_header_st r_msg_hdr; struct dtls1_timeout_st timeout; /* * Indicates when the last handshake msg or heartbeat sent will timeout */ struct timeval next_timeout; /* Timeout duration */ unsigned short timeout_duration; /* * storage for Alert/Handshake protocol data received but not yet * processed by ssl3_read_bytes: */ unsigned char alert_fragment[DTLS1_AL_HEADER_LENGTH]; unsigned int alert_fragment_len; unsigned char handshake_fragment[DTLS1_HM_HEADER_LENGTH]; unsigned int handshake_fragment_len; unsigned int retransmitting; /* * Set when the handshake is ready to process peer's ChangeCipherSpec message. * Cleared after the message has been processed. */ unsigned int change_cipher_spec_ok; # ifndef OPENSSL_NO_SCTP /* used when SSL_ST_XX_FLUSH is entered */ int next_state; int shutdown_received; # endif } DTLS1_STATE; typedef struct dtls1_record_data_st { unsigned char *packet; unsigned int packet_length; SSL3_BUFFER rbuf; SSL3_RECORD rrec; # ifndef OPENSSL_NO_SCTP struct bio_dgram_sctp_rcvinfo recordinfo; # endif } DTLS1_RECORD_DATA; # ifndef OPENSSL_NO_EC /* * From ECC-TLS draft, used in encoding the curve type in ECParameters */ # define EXPLICIT_PRIME_CURVE_TYPE 1 # define EXPLICIT_CHAR2_CURVE_TYPE 2 # define NAMED_CURVE_TYPE 3 # endif /* OPENSSL_NO_EC */ typedef struct cert_pkey_st { X509 *x509; EVP_PKEY *privatekey; /* Digest to use when signing */ const EVP_MD *digest; /* Chain for this certificate */ STACK_OF(X509) *chain; # ifndef OPENSSL_NO_TLSEXT /*- * serverinfo data for this certificate. The data is in TLS Extension * wire format, specifically it's a series of records like: * uint16_t extension_type; // (RFC 5246, 7.4.1.4, Extension) * uint16_t length; * uint8_t data[length]; */ unsigned char *serverinfo; size_t serverinfo_length; # endif /* * Set if CERT_PKEY can be used with current SSL session: e.g. * appropriate curve, signature algorithms etc. If zero it can't be used * at all. */ int valid_flags; } CERT_PKEY; /* Retrieve Suite B flags */ # define tls1_suiteb(s) (s->cert->cert_flags & SSL_CERT_FLAG_SUITEB_128_LOS) /* Uses to check strict mode: suite B modes are always strict */ # define SSL_CERT_FLAGS_CHECK_TLS_STRICT \ (SSL_CERT_FLAG_SUITEB_128_LOS|SSL_CERT_FLAG_TLS_STRICT) typedef struct { unsigned short ext_type; /* * Per-connection flags relating to this extension type: not used if * part of an SSL_CTX structure. */ unsigned short ext_flags; custom_ext_add_cb add_cb; custom_ext_free_cb free_cb; void *add_arg; custom_ext_parse_cb parse_cb; void *parse_arg; } custom_ext_method; /* ext_flags values */ /* * Indicates an extension has been received. Used to check for unsolicited or * duplicate extensions. */ # define SSL_EXT_FLAG_RECEIVED 0x1 /* * Indicates an extension has been sent: used to enable sending of * corresponding ServerHello extension. */ # define SSL_EXT_FLAG_SENT 0x2 typedef struct { custom_ext_method *meths; size_t meths_count; } custom_ext_methods; typedef struct cert_st { /* Current active set */ /* * ALWAYS points to an element of the pkeys array * Probably it would make more sense to store * an index, not a pointer. */ CERT_PKEY *key; /* * For servers the following masks are for the key and auth algorithms * that are supported by the certs below. For clients they are masks of * *disabled* algorithms based on the current session. */ int valid; unsigned long mask_k; unsigned long mask_a; unsigned long export_mask_k; unsigned long export_mask_a; /* Client only */ unsigned long mask_ssl; # ifndef OPENSSL_NO_RSA RSA *rsa_tmp; RSA *(*rsa_tmp_cb) (SSL *ssl, int is_export, int keysize); # endif # ifndef OPENSSL_NO_DH DH *dh_tmp; DH *(*dh_tmp_cb) (SSL *ssl, int is_export, int keysize); int dh_tmp_auto; # endif # ifndef OPENSSL_NO_ECDH EC_KEY *ecdh_tmp; /* Callback for generating ephemeral ECDH keys */ EC_KEY *(*ecdh_tmp_cb) (SSL *ssl, int is_export, int keysize); /* Select ECDH parameters automatically */ int ecdh_tmp_auto; # endif /* Flags related to certificates */ unsigned int cert_flags; CERT_PKEY pkeys[SSL_PKEY_NUM]; /* * Certificate types (received or sent) in certificate request message. * On receive this is only set if number of certificate types exceeds * SSL3_CT_NUMBER. */ unsigned char *ctypes; size_t ctype_num; /* Temporary storage for premaster secret */ unsigned char *pms; size_t pmslen; /* * signature algorithms peer reports: e.g. supported signature algorithms * extension for server or as part of a certificate request for client. */ unsigned char *peer_sigalgs; /* Size of above array */ size_t peer_sigalgslen; /* * suppported signature algorithms. When set on a client this is sent in * the client hello as the supported signature algorithms extension. For * servers it represents the signature algorithms we are willing to use. */ unsigned char *conf_sigalgs; /* Size of above array */ size_t conf_sigalgslen; /* * Client authentication signature algorithms, if not set then uses * conf_sigalgs. On servers these will be the signature algorithms sent * to the client in a cerificate request for TLS 1.2. On a client this * represents the signature algortithms we are willing to use for client * authentication. */ unsigned char *client_sigalgs; /* Size of above array */ size_t client_sigalgslen; /* * Signature algorithms shared by client and server: cached because these * are used most often. */ TLS_SIGALGS *shared_sigalgs; size_t shared_sigalgslen; /* * Certificate setup callback: if set is called whenever a certificate * may be required (client or server). the callback can then examine any * appropriate parameters and setup any certificates required. This * allows advanced applications to select certificates on the fly: for * example based on supported signature algorithms or curves. */ int (*cert_cb) (SSL *ssl, void *arg); void *cert_cb_arg; /* * Optional X509_STORE for chain building or certificate validation If * NULL the parent SSL_CTX store is used instead. */ X509_STORE *chain_store; X509_STORE *verify_store; /* Raw values of the cipher list from a client */ unsigned char *ciphers_raw; size_t ciphers_rawlen; /* Custom extension methods for server and client */ custom_ext_methods cli_ext; custom_ext_methods srv_ext; /* Security callback */ int (*sec_cb) (SSL *s, SSL_CTX *ctx, int op, int bits, int nid, void *other, void *ex); /* Security level */ int sec_level; void *sec_ex; int references; /* >1 only if SSL_copy_session_id is used */ } CERT; typedef struct sess_cert_st { STACK_OF(X509) *cert_chain; /* as received from peer */ /* The 'peer_...' members are used only by clients. */ int peer_cert_type; CERT_PKEY *peer_key; /* points to an element of peer_pkeys (never * NULL!) */ CERT_PKEY peer_pkeys[SSL_PKEY_NUM]; /* * Obviously we don't have the private keys of these, so maybe we * shouldn't even use the CERT_PKEY type here. */ # ifndef OPENSSL_NO_RSA RSA *peer_rsa_tmp; /* not used for SSL 2 */ # endif # ifndef OPENSSL_NO_DH DH *peer_dh_tmp; /* not used for SSL 2 */ # endif # ifndef OPENSSL_NO_ECDH EC_KEY *peer_ecdh_tmp; # endif int references; /* actually always 1 at the moment */ } SESS_CERT; /* Structure containing decoded values of signature algorithms extension */ struct tls_sigalgs_st { /* NID of hash algorithm */ int hash_nid; /* NID of signature algorithm */ int sign_nid; /* Combined hash and signature NID */ int signandhash_nid; /* Raw values used in extension */ unsigned char rsign; unsigned char rhash; }; /* * #define MAC_DEBUG */ /* * #define ERR_DEBUG */ /* * #define ABORT_DEBUG */ /* * #define PKT_DEBUG 1 */ /* * #define DES_DEBUG */ /* * #define DES_OFB_DEBUG */ /* * #define SSL_DEBUG */ /* * #define RSA_DEBUG */ /* * #define IDEA_DEBUG */ # define FP_ICC (int (*)(const void *,const void *)) # define ssl_put_cipher_by_char(ssl,ciph,ptr) \ ((ssl)->method->put_cipher_by_char((ciph),(ptr))) /* * This is for the SSLv3/TLSv1.0 differences in crypto/hash stuff It is a bit * of a mess of functions, but hell, think of it as an opaque structure :-) */ typedef struct ssl3_enc_method { int (*enc) (SSL *, int); int (*mac) (SSL *, unsigned char *, int); int (*setup_key_block) (SSL *); int (*generate_master_secret) (SSL *, unsigned char *, unsigned char *, int); int (*change_cipher_state) (SSL *, int); int (*final_finish_mac) (SSL *, const char *, int, unsigned char *); int finish_mac_length; int (*cert_verify_mac) (SSL *, int, unsigned char *); const char *client_finished_label; int client_finished_label_len; const char *server_finished_label; int server_finished_label_len; int (*alert_value) (int); int (*export_keying_material) (SSL *, unsigned char *, size_t, const char *, size_t, const unsigned char *, size_t, int use_context); /* Various flags indicating protocol version requirements */ unsigned int enc_flags; /* Handshake header length */ unsigned int hhlen; /* Set the handshake header */ void (*set_handshake_header) (SSL *s, int type, unsigned long len); /* Write out handshake message */ int (*do_write) (SSL *s); } SSL3_ENC_METHOD; # define SSL_HM_HEADER_LENGTH(s) s->method->ssl3_enc->hhlen # define ssl_handshake_start(s) \ (((unsigned char *)s->init_buf->data) + s->method->ssl3_enc->hhlen) # define ssl_set_handshake_header(s, htype, len) \ s->method->ssl3_enc->set_handshake_header(s, htype, len) # define ssl_do_write(s) s->method->ssl3_enc->do_write(s) /* Values for enc_flags */ /* Uses explicit IV for CBC mode */ # define SSL_ENC_FLAG_EXPLICIT_IV 0x1 /* Uses signature algorithms extension */ # define SSL_ENC_FLAG_SIGALGS 0x2 /* Uses SHA256 default PRF */ # define SSL_ENC_FLAG_SHA256_PRF 0x4 /* Is DTLS */ # define SSL_ENC_FLAG_DTLS 0x8 /* * Allow TLS 1.2 ciphersuites: applies to DTLS 1.2 as well as TLS 1.2: may * apply to others in future. */ # define SSL_ENC_FLAG_TLS1_2_CIPHERS 0x10 # ifndef OPENSSL_NO_COMP /* Used for holding the relevant compression methods loaded into SSL_CTX */ typedef struct ssl3_comp_st { int comp_id; /* The identifier byte for this compression * type */ char *name; /* Text name used for the compression type */ COMP_METHOD *method; /* The method :-) */ } SSL3_COMP; # endif extern SSL3_ENC_METHOD ssl3_undef_enc_method; OPENSSL_EXTERN const SSL_CIPHER ssl3_ciphers[]; SSL_METHOD *ssl_bad_method(int ver); extern const SSL3_ENC_METHOD TLSv1_enc_data; extern const SSL3_ENC_METHOD TLSv1_1_enc_data; extern const SSL3_ENC_METHOD TLSv1_2_enc_data; extern const SSL3_ENC_METHOD SSLv3_enc_data; extern const SSL3_ENC_METHOD DTLSv1_enc_data; extern const SSL3_ENC_METHOD DTLSv1_2_enc_data; # define IMPLEMENT_tls_meth_func(version, func_name, s_accept, s_connect, \ s_get_meth, enc_data) \ const SSL_METHOD *func_name(void) \ { \ static const SSL_METHOD func_name##_data= { \ version, \ tls1_new, \ tls1_clear, \ tls1_free, \ s_accept, \ s_connect, \ ssl3_read, \ ssl3_peek, \ ssl3_write, \ ssl3_shutdown, \ ssl3_renegotiate, \ ssl3_renegotiate_check, \ ssl3_get_message, \ ssl3_read_bytes, \ ssl3_write_bytes, \ ssl3_dispatch_alert, \ ssl3_ctrl, \ ssl3_ctx_ctrl, \ ssl3_get_cipher_by_char, \ ssl3_put_cipher_by_char, \ ssl3_pending, \ ssl3_num_ciphers, \ ssl3_get_cipher, \ s_get_meth, \ tls1_default_timeout, \ &enc_data, \ ssl_undefined_void_function, \ ssl3_callback_ctrl, \ ssl3_ctx_callback_ctrl, \ }; \ return &func_name##_data; \ } # define IMPLEMENT_ssl3_meth_func(func_name, s_accept, s_connect, s_get_meth) \ const SSL_METHOD *func_name(void) \ { \ static const SSL_METHOD func_name##_data= { \ SSL3_VERSION, \ ssl3_new, \ ssl3_clear, \ ssl3_free, \ s_accept, \ s_connect, \ ssl3_read, \ ssl3_peek, \ ssl3_write, \ ssl3_shutdown, \ ssl3_renegotiate, \ ssl3_renegotiate_check, \ ssl3_get_message, \ ssl3_read_bytes, \ ssl3_write_bytes, \ ssl3_dispatch_alert, \ ssl3_ctrl, \ ssl3_ctx_ctrl, \ ssl3_get_cipher_by_char, \ ssl3_put_cipher_by_char, \ ssl3_pending, \ ssl3_num_ciphers, \ ssl3_get_cipher, \ s_get_meth, \ ssl3_default_timeout, \ &SSLv3_enc_data, \ ssl_undefined_void_function, \ ssl3_callback_ctrl, \ ssl3_ctx_callback_ctrl, \ }; \ return &func_name##_data; \ } # define IMPLEMENT_ssl23_meth_func(func_name, s_accept, s_connect, s_get_meth) \ const SSL_METHOD *func_name(void) \ { \ static const SSL_METHOD func_name##_data= { \ TLS1_2_VERSION, \ tls1_new, \ tls1_clear, \ tls1_free, \ s_accept, \ s_connect, \ ssl23_read, \ ssl23_peek, \ ssl23_write, \ ssl_undefined_function, \ ssl_undefined_function, \ ssl_ok, \ ssl3_get_message, \ ssl3_read_bytes, \ ssl3_write_bytes, \ ssl3_dispatch_alert, \ ssl3_ctrl, \ ssl3_ctx_ctrl, \ ssl23_get_cipher_by_char, \ ssl23_put_cipher_by_char, \ ssl_undefined_const_function, \ ssl23_num_ciphers, \ ssl23_get_cipher, \ s_get_meth, \ ssl23_default_timeout, \ &TLSv1_2_enc_data, \ ssl_undefined_void_function, \ ssl3_callback_ctrl, \ ssl3_ctx_callback_ctrl, \ }; \ return &func_name##_data; \ } # define IMPLEMENT_dtls1_meth_func(version, func_name, s_accept, s_connect, \ s_get_meth, enc_data) \ const SSL_METHOD *func_name(void) \ { \ static const SSL_METHOD func_name##_data= { \ version, \ dtls1_new, \ dtls1_clear, \ dtls1_free, \ s_accept, \ s_connect, \ ssl3_read, \ ssl3_peek, \ ssl3_write, \ dtls1_shutdown, \ ssl3_renegotiate, \ ssl3_renegotiate_check, \ dtls1_get_message, \ dtls1_read_bytes, \ dtls1_write_app_data_bytes, \ dtls1_dispatch_alert, \ dtls1_ctrl, \ ssl3_ctx_ctrl, \ ssl3_get_cipher_by_char, \ ssl3_put_cipher_by_char, \ ssl3_pending, \ ssl3_num_ciphers, \ dtls1_get_cipher, \ s_get_meth, \ dtls1_default_timeout, \ &enc_data, \ ssl_undefined_void_function, \ ssl3_callback_ctrl, \ ssl3_ctx_callback_ctrl, \ }; \ return &func_name##_data; \ } struct openssl_ssl_test_functions { int (*p_ssl_init_wbio_buffer) (SSL *s, int push); int (*p_ssl3_setup_buffers) (SSL *s); int (*p_tls1_process_heartbeat) (SSL *s); int (*p_dtls1_process_heartbeat) (SSL *s); }; # ifndef OPENSSL_UNIT_TEST void ssl_clear_cipher_ctx(SSL *s); int ssl_clear_bad_session(SSL *s); CERT *ssl_cert_new(void); CERT *ssl_cert_dup(CERT *cert); void ssl_cert_set_default_md(CERT *cert); int ssl_cert_inst(CERT **o); void ssl_cert_clear_certs(CERT *c); void ssl_cert_free(CERT *c); SESS_CERT *ssl_sess_cert_new(void); void ssl_sess_cert_free(SESS_CERT *sc); int ssl_set_peer_cert_type(SESS_CERT *c, int type); int ssl_get_new_session(SSL *s, int session); int ssl_get_prev_session(SSL *s, unsigned char *session, int len, const unsigned char *limit); int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b); DECLARE_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER, SSL_CIPHER, ssl_cipher_id); int ssl_cipher_ptr_id_cmp(const SSL_CIPHER *const *ap, const SSL_CIPHER *const *bp); STACK_OF(SSL_CIPHER) *ssl_bytes_to_cipher_list(SSL *s, unsigned char *p, int num, STACK_OF(SSL_CIPHER) **skp); int ssl_cipher_list_to_bytes(SSL *s, STACK_OF(SSL_CIPHER) *sk, unsigned char *p, int (*put_cb) (const SSL_CIPHER *, unsigned char *)); STACK_OF(SSL_CIPHER) *ssl_create_cipher_list(const SSL_METHOD *meth, STACK_OF(SSL_CIPHER) **pref, STACK_OF(SSL_CIPHER) **sorted, const char *rule_str, CERT *c); void ssl_update_cache(SSL *s, int mode); int ssl_cipher_get_evp(const SSL_SESSION *s, const EVP_CIPHER **enc, const EVP_MD **md, int *mac_pkey_type, int *mac_secret_size, SSL_COMP **comp, int use_etm); int ssl_get_handshake_digest(int i, long *mask, const EVP_MD **md); int ssl_cipher_get_cert_index(const SSL_CIPHER *c); const SSL_CIPHER *ssl_get_cipher_by_char(SSL *ssl, const unsigned char *ptr); int ssl_cert_set0_chain(SSL *s, SSL_CTX *ctx, STACK_OF(X509) *chain); int ssl_cert_set1_chain(SSL *s, SSL_CTX *ctx, STACK_OF(X509) *chain); int ssl_cert_add0_chain_cert(SSL *s, SSL_CTX *ctx, X509 *x); int ssl_cert_add1_chain_cert(SSL *s, SSL_CTX *ctx, X509 *x); int ssl_cert_select_current(CERT *c, X509 *x); int ssl_cert_set_current(CERT *c, long arg); X509 *ssl_cert_get0_next_certificate(CERT *c, int first); void ssl_cert_set_cert_cb(CERT *c, int (*cb) (SSL *ssl, void *arg), void *arg); int ssl_verify_cert_chain(SSL *s, STACK_OF(X509) *sk); int ssl_add_cert_chain(SSL *s, CERT_PKEY *cpk, unsigned long *l); int ssl_build_cert_chain(SSL *s, SSL_CTX *ctx, int flags); int ssl_cert_set_cert_store(CERT *c, X509_STORE *store, int chain, int ref); int ssl_security(SSL *s, int op, int bits, int nid, void *other); int ssl_ctx_security(SSL_CTX *ctx, int op, int bits, int nid, void *other); int ssl_undefined_function(SSL *s); int ssl_undefined_void_function(void); int ssl_undefined_const_function(const SSL *s); CERT_PKEY *ssl_get_server_send_pkey(const SSL *s); # ifndef OPENSSL_NO_TLSEXT int ssl_get_server_cert_serverinfo(SSL *s, const unsigned char **serverinfo, size_t *serverinfo_length); # endif EVP_PKEY *ssl_get_sign_pkey(SSL *s, const SSL_CIPHER *c, const EVP_MD **pmd); int ssl_cert_type(X509 *x, EVP_PKEY *pkey); void ssl_set_cert_masks(CERT *c, const SSL_CIPHER *cipher); STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s); int ssl_verify_alarm_type(long type); void ssl_load_ciphers(void); int ssl_fill_hello_random(SSL *s, int server, unsigned char *field, int len); const SSL_CIPHER *ssl3_get_cipher_by_char(const unsigned char *p); int ssl3_put_cipher_by_char(const SSL_CIPHER *c, unsigned char *p); void ssl3_init_finished_mac(SSL *s); int ssl3_send_server_certificate(SSL *s); int ssl3_send_newsession_ticket(SSL *s); int ssl3_send_cert_status(SSL *s); int ssl3_get_finished(SSL *s, int state_a, int state_b); int ssl3_setup_key_block(SSL *s); int ssl3_send_change_cipher_spec(SSL *s, int state_a, int state_b); int ssl3_change_cipher_state(SSL *s, int which); void ssl3_cleanup_key_block(SSL *s); int ssl3_do_write(SSL *s, int type); int ssl3_send_alert(SSL *s, int level, int desc); int ssl3_generate_master_secret(SSL *s, unsigned char *out, unsigned char *p, int len); int ssl3_get_req_cert_type(SSL *s, unsigned char *p); long ssl3_get_message(SSL *s, int st1, int stn, int mt, long max, int *ok); int ssl3_send_finished(SSL *s, int a, int b, const char *sender, int slen); int ssl3_num_ciphers(void); const SSL_CIPHER *ssl3_get_cipher(unsigned int u); int ssl3_renegotiate(SSL *ssl); int ssl3_renegotiate_check(SSL *ssl); int ssl3_dispatch_alert(SSL *s); int ssl3_read_bytes(SSL *s, int type, unsigned char *buf, int len, int peek); int ssl3_write_bytes(SSL *s, int type, const void *buf, int len); int ssl3_final_finish_mac(SSL *s, const char *sender, int slen, unsigned char *p); int ssl3_cert_verify_mac(SSL *s, int md_nid, unsigned char *p); void ssl3_finish_mac(SSL *s, const unsigned char *buf, int len); int ssl3_enc(SSL *s, int send_data); int n_ssl3_mac(SSL *ssl, unsigned char *md, int send_data); void ssl3_free_digest_list(SSL *s); unsigned long ssl3_output_cert_chain(SSL *s, CERT_PKEY *cpk); SSL_CIPHER *ssl3_choose_cipher(SSL *ssl, STACK_OF(SSL_CIPHER) *clnt, STACK_OF(SSL_CIPHER) *srvr); int ssl3_setup_buffers(SSL *s); int ssl3_setup_read_buffer(SSL *s); int ssl3_setup_write_buffer(SSL *s); int ssl3_release_read_buffer(SSL *s); int ssl3_release_write_buffer(SSL *s); int ssl3_digest_cached_records(SSL *s); int ssl3_new(SSL *s); void ssl3_free(SSL *s); int ssl3_accept(SSL *s); int ssl3_connect(SSL *s); int ssl3_read(SSL *s, void *buf, int len); int ssl3_peek(SSL *s, void *buf, int len); int ssl3_write(SSL *s, const void *buf, int len); int ssl3_shutdown(SSL *s); void ssl3_clear(SSL *s); long ssl3_ctrl(SSL *s, int cmd, long larg, void *parg); long ssl3_ctx_ctrl(SSL_CTX *s, int cmd, long larg, void *parg); long ssl3_callback_ctrl(SSL *s, int cmd, void (*fp) (void)); long ssl3_ctx_callback_ctrl(SSL_CTX *s, int cmd, void (*fp) (void)); int ssl3_pending(const SSL *s); void ssl3_record_sequence_update(unsigned char *seq); int ssl3_do_change_cipher_spec(SSL *ssl); long ssl3_default_timeout(void); void ssl3_set_handshake_header(SSL *s, int htype, unsigned long len); int ssl3_handshake_write(SSL *s); int ssl23_num_ciphers(void); const SSL_CIPHER *ssl23_get_cipher(unsigned int u); int ssl23_read(SSL *s, void *buf, int len); int ssl23_peek(SSL *s, void *buf, int len); int ssl23_write(SSL *s, const void *buf, int len); int ssl23_put_cipher_by_char(const SSL_CIPHER *c, unsigned char *p); const SSL_CIPHER *ssl23_get_cipher_by_char(const unsigned char *p); long ssl23_default_timeout(void); int ssl_allow_compression(SSL *s); long tls1_default_timeout(void); int dtls1_do_write(SSL *s, int type); int ssl3_read_n(SSL *s, int n, int max, int extend); int dtls1_read_bytes(SSL *s, int type, unsigned char *buf, int len, int peek); int ssl3_do_compress(SSL *ssl); int ssl3_do_uncompress(SSL *ssl); int ssl3_write_pending(SSL *s, int type, const unsigned char *buf, unsigned int len); unsigned char *dtls1_set_message_header(SSL *s, unsigned char *p, unsigned char mt, unsigned long len, unsigned long frag_off, unsigned long frag_len); int dtls1_write_app_data_bytes(SSL *s, int type, const void *buf, int len); int dtls1_write_bytes(SSL *s, int type, const void *buf, int len); int dtls1_send_change_cipher_spec(SSL *s, int a, int b); int dtls1_send_finished(SSL *s, int a, int b, const char *sender, int slen); int dtls1_read_failed(SSL *s, int code); int dtls1_buffer_message(SSL *s, int ccs); int dtls1_retransmit_message(SSL *s, unsigned short seq, unsigned long frag_off, int *found); int dtls1_get_queue_priority(unsigned short seq, int is_ccs); int dtls1_retransmit_buffered_messages(SSL *s); void dtls1_clear_record_buffer(SSL *s); void dtls1_get_message_header(unsigned char *data, struct hm_header_st *msg_hdr); void dtls1_get_ccs_header(unsigned char *data, struct ccs_header_st *ccs_hdr); void dtls1_reset_seq_numbers(SSL *s, int rw); long dtls1_default_timeout(void); struct timeval *dtls1_get_timeout(SSL *s, struct timeval *timeleft); int dtls1_check_timeout_num(SSL *s); int dtls1_handle_timeout(SSL *s); const SSL_CIPHER *dtls1_get_cipher(unsigned int u); void dtls1_start_timer(SSL *s); void dtls1_stop_timer(SSL *s); int dtls1_is_timer_expired(SSL *s); void dtls1_double_timeout(SSL *s); int dtls1_send_newsession_ticket(SSL *s); unsigned int dtls1_min_mtu(SSL *s); unsigned int dtls1_link_min_mtu(void); void dtls1_hm_fragment_free(hm_fragment *frag); /* some client-only functions */ int ssl3_client_hello(SSL *s); int ssl3_get_server_hello(SSL *s); int ssl3_get_certificate_request(SSL *s); int ssl3_get_new_session_ticket(SSL *s); int ssl3_get_cert_status(SSL *s); int ssl3_get_server_done(SSL *s); int ssl3_send_client_verify(SSL *s); int ssl3_send_client_certificate(SSL *s); int ssl_do_client_cert_cb(SSL *s, X509 **px509, EVP_PKEY **ppkey); int ssl3_send_client_key_exchange(SSL *s); int ssl3_get_key_exchange(SSL *s); int ssl3_get_server_certificate(SSL *s); int ssl3_check_cert_and_algorithm(SSL *s); # ifndef OPENSSL_NO_TLSEXT # ifndef OPENSSL_NO_NEXTPROTONEG int ssl3_send_next_proto(SSL *s); # endif # endif int dtls1_client_hello(SSL *s); /* some server-only functions */ int ssl3_get_client_hello(SSL *s); int ssl3_send_server_hello(SSL *s); int ssl3_send_hello_request(SSL *s); int ssl3_send_server_key_exchange(SSL *s); int ssl3_send_certificate_request(SSL *s); int ssl3_send_server_done(SSL *s); int ssl3_get_client_certificate(SSL *s); int ssl3_get_client_key_exchange(SSL *s); int ssl3_get_cert_verify(SSL *s); # ifndef OPENSSL_NO_NEXTPROTONEG int ssl3_get_next_proto(SSL *s); # endif int ssl23_accept(SSL *s); int ssl23_connect(SSL *s); int ssl23_read_bytes(SSL *s, int n); int ssl23_write_bytes(SSL *s); int tls1_new(SSL *s); void tls1_free(SSL *s); void tls1_clear(SSL *s); long tls1_ctrl(SSL *s, int cmd, long larg, void *parg); long tls1_callback_ctrl(SSL *s, int cmd, void (*fp) (void)); int dtls1_new(SSL *s); int dtls1_accept(SSL *s); int dtls1_connect(SSL *s); void dtls1_free(SSL *s); void dtls1_clear(SSL *s); long dtls1_ctrl(SSL *s, int cmd, long larg, void *parg); int dtls1_shutdown(SSL *s); long dtls1_get_message(SSL *s, int st1, int stn, int mt, long max, int *ok); int dtls1_get_record(SSL *s); int do_dtls1_write(SSL *s, int type, const unsigned char *buf, unsigned int len, int create_empty_fragement); int dtls1_dispatch_alert(SSL *s); int ssl_init_wbio_buffer(SSL *s, int push); void ssl_free_wbio_buffer(SSL *s); int tls1_change_cipher_state(SSL *s, int which); int tls1_setup_key_block(SSL *s); int tls1_enc(SSL *s, int snd); int tls1_final_finish_mac(SSL *s, const char *str, int slen, unsigned char *p); int tls1_cert_verify_mac(SSL *s, int md_nid, unsigned char *p); int tls1_mac(SSL *ssl, unsigned char *md, int snd); int tls1_generate_master_secret(SSL *s, unsigned char *out, unsigned char *p, int len); int tls1_export_keying_material(SSL *s, unsigned char *out, size_t olen, const char *label, size_t llen, const unsigned char *p, size_t plen, int use_context); int tls1_alert_code(int code); int ssl3_alert_code(int code); int ssl_ok(SSL *s); # ifndef OPENSSL_NO_ECDH int ssl_check_srvr_ecc_cert_and_alg(X509 *x, SSL *s); # endif SSL_COMP *ssl3_comp_find(STACK_OF(SSL_COMP) *sk, int n); # ifndef OPENSSL_NO_EC int tls1_ec_curve_id2nid(int curve_id); int tls1_ec_nid2curve_id(int nid); int tls1_check_curve(SSL *s, const unsigned char *p, size_t len); int tls1_shared_curve(SSL *s, int nmatch); int tls1_set_curves(unsigned char **pext, size_t *pextlen, int *curves, size_t ncurves); int tls1_set_curves_list(unsigned char **pext, size_t *pextlen, const char *str); # ifndef OPENSSL_NO_ECDH int tls1_check_ec_tmp_key(SSL *s, unsigned long id); # endif /* OPENSSL_NO_ECDH */ # endif /* OPENSSL_NO_EC */ # ifndef OPENSSL_NO_TLSEXT int tls1_shared_list(SSL *s, const unsigned char *l1, size_t l1len, const unsigned char *l2, size_t l2len, int nmatch); unsigned char *ssl_add_clienthello_tlsext(SSL *s, unsigned char *buf, unsigned char *limit, int *al); unsigned char *ssl_add_serverhello_tlsext(SSL *s, unsigned char *buf, unsigned char *limit, int *al); int ssl_parse_clienthello_tlsext(SSL *s, unsigned char **data, unsigned char *d, int n); int tls1_set_server_sigalgs(SSL *s); int ssl_check_clienthello_tlsext_late(SSL *s); int ssl_parse_serverhello_tlsext(SSL *s, unsigned char **data, unsigned char *d, int n); int ssl_prepare_clienthello_tlsext(SSL *s); int ssl_prepare_serverhello_tlsext(SSL *s); # ifndef OPENSSL_NO_HEARTBEATS int tls1_heartbeat(SSL *s); int dtls1_heartbeat(SSL *s); int tls1_process_heartbeat(SSL *s); int dtls1_process_heartbeat(SSL *s); # endif int tls1_process_ticket(SSL *s, unsigned char *session_id, int len, const unsigned char *limit, SSL_SESSION **ret); int tls12_get_sigandhash(unsigned char *p, const EVP_PKEY *pk, const EVP_MD *md); int tls12_get_sigid(const EVP_PKEY *pk); const EVP_MD *tls12_get_hash(unsigned char hash_alg); void ssl_set_sig_mask(unsigned long *pmask_a, SSL *s, int op); int tls1_set_sigalgs_list(CERT *c, const char *str, int client); int tls1_set_sigalgs(CERT *c, const int *salg, size_t salglen, int client); int tls1_check_chain(SSL *s, X509 *x, EVP_PKEY *pk, STACK_OF(X509) *chain, int idx); void tls1_set_cert_validity(SSL *s); # endif # ifndef OPENSSL_NO_DH DH *ssl_get_auto_dh(SSL *s); # endif int ssl_security_cert(SSL *s, SSL_CTX *ctx, X509 *x, int vfy, int is_ee); int ssl_security_cert_chain(SSL *s, STACK_OF(X509) *sk, X509 *ex, int vfy); EVP_MD_CTX *ssl_replace_hash(EVP_MD_CTX **hash, const EVP_MD *md); void ssl_clear_hash_ctx(EVP_MD_CTX **hash); int ssl_add_serverhello_renegotiate_ext(SSL *s, unsigned char *p, int *len, int maxlen); int ssl_parse_serverhello_renegotiate_ext(SSL *s, unsigned char *d, int len, int *al); int ssl_add_clienthello_renegotiate_ext(SSL *s, unsigned char *p, int *len, int maxlen); int ssl_parse_clienthello_renegotiate_ext(SSL *s, unsigned char *d, int len, int *al); long ssl_get_algorithm2(SSL *s); size_t tls12_copy_sigalgs(SSL *s, unsigned char *out, const unsigned char *psig, size_t psiglen); int tls1_save_sigalgs(SSL *s, const unsigned char *data, int dsize); int tls1_process_sigalgs(SSL *s); size_t tls12_get_psigalgs(SSL *s, const unsigned char **psigs); int tls12_check_peer_sigalg(const EVP_MD **pmd, SSL *s, const unsigned char *sig, EVP_PKEY *pkey); void ssl_set_client_disabled(SSL *s); int ssl_cipher_disabled(SSL *s, const SSL_CIPHER *c, int op); int ssl_add_clienthello_use_srtp_ext(SSL *s, unsigned char *p, int *len, int maxlen); int ssl_parse_clienthello_use_srtp_ext(SSL *s, unsigned char *d, int len, int *al); int ssl_add_serverhello_use_srtp_ext(SSL *s, unsigned char *p, int *len, int maxlen); int ssl_parse_serverhello_use_srtp_ext(SSL *s, unsigned char *d, int len, int *al); int ssl_handshake_hash(SSL *s, unsigned char *out, int outlen); /* s3_cbc.c */ void ssl3_cbc_copy_mac(unsigned char *out, const SSL3_RECORD *rec, unsigned md_size); int ssl3_cbc_remove_padding(const SSL *s, SSL3_RECORD *rec, unsigned block_size, unsigned mac_size); int tls1_cbc_remove_padding(const SSL *s, SSL3_RECORD *rec, unsigned block_size, unsigned mac_size); char ssl3_cbc_record_digest_supported(const EVP_MD_CTX *ctx); void ssl3_cbc_digest_record(const EVP_MD_CTX *ctx, unsigned char *md_out, size_t *md_out_size, const unsigned char header[13], const unsigned char *data, size_t data_plus_mac_size, size_t data_plus_mac_plus_padding_size, const unsigned char *mac_secret, unsigned mac_secret_length, char is_sslv3); void tls_fips_digest_extra(const EVP_CIPHER_CTX *cipher_ctx, EVP_MD_CTX *mac_ctx, const unsigned char *data, size_t data_len, size_t orig_len); int srp_verify_server_param(SSL *s, int *al); /* t1_ext.c */ void custom_ext_init(custom_ext_methods *meths); int custom_ext_parse(SSL *s, int server, unsigned int ext_type, const unsigned char *ext_data, size_t ext_size, int *al); int custom_ext_add(SSL *s, int server, unsigned char **pret, unsigned char *limit, int *al); int custom_exts_copy(custom_ext_methods *dst, const custom_ext_methods *src); void custom_exts_free(custom_ext_methods *exts); # else # define ssl_init_wbio_buffer SSL_test_functions()->p_ssl_init_wbio_buffer # define ssl3_setup_buffers SSL_test_functions()->p_ssl3_setup_buffers # define tls1_process_heartbeat SSL_test_functions()->p_tls1_process_heartbeat # define dtls1_process_heartbeat SSL_test_functions()->p_dtls1_process_heartbeat # endif #endif