mirror of https://github.com/openssl/openssl.git
				
				
				
			
		
			
				
	
	
		
			2119 lines
		
	
	
		
			79 KiB
		
	
	
	
		
			C
		
	
	
	
			
		
		
	
	
			2119 lines
		
	
	
		
			79 KiB
		
	
	
	
		
			C
		
	
	
	
| /*
 | |
|  * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
 | |
|  *
 | |
|  * Licensed under the OpenSSL license (the "License").  You may not use
 | |
|  * this file except in compliance with the License.  You can obtain a copy
 | |
|  * in the file LICENSE in the source distribution or at
 | |
|  * https://www.openssl.org/source/license.html
 | |
|  */
 | |
| 
 | |
| /* ====================================================================
 | |
|  * 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 <stdlib.h>
 | |
| # include <time.h>
 | |
| # include <string.h>
 | |
| # include <errno.h>
 | |
| 
 | |
| # include "e_os.h"
 | |
| # if defined(__unix) || defined(__unix__)
 | |
| #  include <sys/time.h>  /* struct timeval for DTLS */
 | |
| # endif
 | |
| 
 | |
| # include <openssl/buffer.h>
 | |
| # include <openssl/comp.h>
 | |
| # include <openssl/bio.h>
 | |
| # include <openssl/stack.h>
 | |
| # include <openssl/rsa.h>
 | |
| # include <openssl/dsa.h>
 | |
| # include <openssl/err.h>
 | |
| # include <openssl/ssl.h>
 | |
| # include <openssl/async.h>
 | |
| # include <openssl/symhacks.h>
 | |
| # include <openssl/ct.h>
 | |
| #include "record/record.h"
 | |
| #include "statem/statem.h"
 | |
| #include "packet_locl.h"
 | |
| #include "internal/dane.h"
 | |
| 
 | |
| # 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), \
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|                          *((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), \
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|                          *((c)++)=(unsigned char)(((l)>>48)&0xff), \
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|                          *((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))
 | |
| 
 | |
| /* 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), \
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|                           c[1]=(unsigned char)(((s)    )&0xff)),c+=2)
 | |
| 
 | |
| # define n2l3(c,l)       ((l =(((unsigned long)(c[0]))<<16)| \
 | |
|                              (((unsigned long)(c[1]))<< 8)| \
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|                              (((unsigned long)(c[2]))    )),c+=3)
 | |
| 
 | |
| # define l2n3(l,c)       ((c[0]=(unsigned char)(((l)>>16)&0xff), \
 | |
|                           c[1]=(unsigned char)(((l)>> 8)&0xff), \
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|                           c[2]=(unsigned char)(((l)    )&0xff)),c+=3)
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| 
 | |
| #define DTLS_VERSION_GT(v1, v2) ((v1) < (v2))
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| #define DTLS_VERSION_GE(v1, v2) ((v1) <= (v2))
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| #define DTLS_VERSION_LT(v1, v2) ((v1) > (v2))
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| #define DTLS_VERSION_LE(v1, v2) ((v1) >= (v2))
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| 
 | |
| /* LOCAL STUFF */
 | |
| 
 | |
| # define SSL_DECRYPT     0
 | |
| # define SSL_ENCRYPT     1
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| 
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| # define TWO_BYTE_BIT    0x80
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| # define SEC_ESC_BIT     0x40
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| # define TWO_BYTE_MASK   0x7fff
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| # define THREE_BYTE_MASK 0x3fff
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| 
 | |
| # define INC32(a)        ((a)=((a)+1)&0xffffffffL)
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| # define DEC32(a)        ((a)=((a)-1)&0xffffffffL)
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| # define MAX_MAC_SIZE    20     /* up from 16 for SSLv3 */
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| 
 | |
| /*
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|  * Define the Bitmasks for SSL_CIPHER.algorithms.
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|  * This bits are used packed as dense as possible. If new methods/ciphers
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|  * etc will be added, the bits a likely to change, so this information
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|  * is for internal library use only, even though SSL_CIPHER.algorithms
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|  * can be publicly accessed.
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|  * Use the according functions for cipher management instead.
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|  *
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|  * The bit mask handling in the selection and sorting scheme in
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|  * ssl_create_cipher_list() has only limited capabilities, reflecting
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|  * that the different entities within are mutually exclusive:
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|  * ONLY ONE BIT PER MASK CAN BE SET AT A TIME.
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|  */
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| 
 | |
| /* Bits for algorithm_mkey (key exchange algorithm) */
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| /* RSA key exchange */
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| # define SSL_kRSA                0x00000001U
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| /* tmp DH key no DH cert */
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| # define SSL_kDHE                0x00000002U
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| /* synonym */
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| # define SSL_kEDH                SSL_kDHE
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| /* ephemeral ECDH */
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| # define SSL_kECDHE              0x00000004U
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| /* synonym */
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| # define SSL_kEECDH              SSL_kECDHE
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| /* PSK */
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| # define SSL_kPSK                0x00000008U
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| /* GOST key exchange */
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| # define SSL_kGOST               0x00000010U
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| /* SRP */
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| # define SSL_kSRP                0x00000020U
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| 
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| # define SSL_kRSAPSK             0x00000040U
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| # define SSL_kECDHEPSK           0x00000080U
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| # define SSL_kDHEPSK             0x00000100U
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| 
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| /* all PSK */
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| 
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| #define SSL_PSK     (SSL_kPSK | SSL_kRSAPSK | SSL_kECDHEPSK | SSL_kDHEPSK)
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| 
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| /* Bits for algorithm_auth (server authentication) */
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| /* RSA auth */
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| # define SSL_aRSA                0x00000001U
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| /* DSS auth */
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| # define SSL_aDSS                0x00000002U
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| /* no auth (i.e. use ADH or AECDH) */
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| # define SSL_aNULL               0x00000004U
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| /* ECDSA auth*/
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| # define SSL_aECDSA              0x00000008U
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| /* PSK auth */
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| # define SSL_aPSK                0x00000010U
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| /* GOST R 34.10-2001 signature auth */
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| # define SSL_aGOST01             0x00000020U
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| /* SRP auth */
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| # define SSL_aSRP                0x00000040U
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| /* GOST R 34.10-2012 signature auth */
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| # define SSL_aGOST12             0x00000080U
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| 
 | |
| /* Bits for algorithm_enc (symmetric encryption) */
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| # define SSL_DES                 0x00000001U
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| # define SSL_3DES                0x00000002U
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| # define SSL_RC4                 0x00000004U
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| # define SSL_RC2                 0x00000008U
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| # define SSL_IDEA                0x00000010U
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| # define SSL_eNULL               0x00000020U
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| # define SSL_AES128              0x00000040U
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| # define SSL_AES256              0x00000080U
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| # define SSL_CAMELLIA128         0x00000100U
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| # define SSL_CAMELLIA256         0x00000200U
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| # define SSL_eGOST2814789CNT     0x00000400U
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| # define SSL_SEED                0x00000800U
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| # define SSL_AES128GCM           0x00001000U
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| # define SSL_AES256GCM           0x00002000U
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| # define SSL_AES128CCM           0x00004000U
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| # define SSL_AES256CCM           0x00008000U
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| # define SSL_AES128CCM8          0x00010000U
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| # define SSL_AES256CCM8          0x00020000U
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| # define SSL_eGOST2814789CNT12   0x00040000U
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| # define SSL_CHACHA20POLY1305    0x00080000U
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| 
 | |
| # define SSL_AESGCM              (SSL_AES128GCM | SSL_AES256GCM)
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| # define SSL_AESCCM              (SSL_AES128CCM | SSL_AES256CCM | SSL_AES128CCM8 | SSL_AES256CCM8)
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| # define SSL_AES                 (SSL_AES128|SSL_AES256|SSL_AESGCM|SSL_AESCCM)
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| # define SSL_CAMELLIA            (SSL_CAMELLIA128|SSL_CAMELLIA256)
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| # define SSL_CHACHA20            (SSL_CHACHA20POLY1305)
 | |
| 
 | |
| /* Bits for algorithm_mac (symmetric authentication) */
 | |
| 
 | |
| # define SSL_MD5                 0x00000001U
 | |
| # define SSL_SHA1                0x00000002U
 | |
| # define SSL_GOST94      0x00000004U
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| # define SSL_GOST89MAC   0x00000008U
 | |
| # define SSL_SHA256              0x00000010U
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| # define SSL_SHA384              0x00000020U
 | |
| /* Not a real MAC, just an indication it is part of cipher */
 | |
| # define SSL_AEAD                0x00000040U
 | |
| # define SSL_GOST12_256          0x00000080U
 | |
| # define SSL_GOST89MAC12         0x00000100U
 | |
| # define SSL_GOST12_512          0x00000200U
 | |
| 
 | |
| /*
 | |
|  * When adding new digest in the ssl_ciph.c and increment SSL_MD_NUM_IDX make
 | |
|  * sure to update this constant too
 | |
|  */
 | |
| 
 | |
| # define SSL_MD_MD5_IDX  0
 | |
| # define SSL_MD_SHA1_IDX 1
 | |
| # define SSL_MD_GOST94_IDX 2
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| # define SSL_MD_GOST89MAC_IDX 3
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| # define SSL_MD_SHA256_IDX 4
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| # define SSL_MD_SHA384_IDX 5
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| # define SSL_MD_GOST12_256_IDX  6
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| # define SSL_MD_GOST89MAC12_IDX 7
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| # define SSL_MD_GOST12_512_IDX  8
 | |
| # define SSL_MD_MD5_SHA1_IDX 9
 | |
| # define SSL_MD_SHA224_IDX 10
 | |
| # define SSL_MD_SHA512_IDX 11
 | |
| # define SSL_MAX_DIGEST 12
 | |
| 
 | |
| /* Bits for algorithm2 (handshake digests and other extra flags) */
 | |
| 
 | |
| /* Bits 0-7 are handshake MAC */
 | |
| # define SSL_HANDSHAKE_MAC_MASK  0xFF
 | |
| # define SSL_HANDSHAKE_MAC_MD5_SHA1 SSL_MD_MD5_SHA1_IDX
 | |
| # define SSL_HANDSHAKE_MAC_SHA256   SSL_MD_SHA256_IDX
 | |
| # define SSL_HANDSHAKE_MAC_SHA384   SSL_MD_SHA384_IDX
 | |
| # define SSL_HANDSHAKE_MAC_GOST94 SSL_MD_GOST94_IDX
 | |
| # define SSL_HANDSHAKE_MAC_GOST12_256 SSL_MD_GOST12_256_IDX
 | |
| # define SSL_HANDSHAKE_MAC_GOST12_512 SSL_MD_GOST12_512_IDX
 | |
| # define SSL_HANDSHAKE_MAC_DEFAULT  SSL_HANDSHAKE_MAC_MD5_SHA1
 | |
| 
 | |
| /* Bits 8-15 bits are PRF */
 | |
| # define TLS1_PRF_DGST_SHIFT 8
 | |
| # define TLS1_PRF_SHA1_MD5 (SSL_MD_MD5_SHA1_IDX << TLS1_PRF_DGST_SHIFT)
 | |
| # define TLS1_PRF_SHA256 (SSL_MD_SHA256_IDX << TLS1_PRF_DGST_SHIFT)
 | |
| # define TLS1_PRF_SHA384 (SSL_MD_SHA384_IDX << TLS1_PRF_DGST_SHIFT)
 | |
| # define TLS1_PRF_GOST94 (SSL_MD_GOST94_IDX << TLS1_PRF_DGST_SHIFT)
 | |
| # define TLS1_PRF_GOST12_256 (SSL_MD_GOST12_256_IDX << TLS1_PRF_DGST_SHIFT)
 | |
| # define TLS1_PRF_GOST12_512 (SSL_MD_GOST12_512_IDX << TLS1_PRF_DGST_SHIFT)
 | |
| # define TLS1_PRF            (SSL_MD_MD5_SHA1_IDX << TLS1_PRF_DGST_SHIFT)
 | |
| 
 | |
| /*
 | |
|  * Stream MAC for GOST ciphersuites from cryptopro draft (currently this also
 | |
|  * goes into algorithm2)
 | |
|  */
 | |
| # define TLS1_STREAM_MAC 0x10000
 | |
| 
 | |
| # define SSL_STRONG_MASK         0x0000001FU
 | |
| # define SSL_DEFAULT_MASK        0X00000020U
 | |
| 
 | |
| # define SSL_STRONG_NONE         0x00000001U
 | |
| # define SSL_LOW                 0x00000002U
 | |
| # define SSL_MEDIUM              0x00000004U
 | |
| # define SSL_HIGH                0x00000008U
 | |
| # define SSL_FIPS                0x00000010U
 | |
| # define SSL_NOT_DEFAULT         0x00000020U
 | |
| 
 | |
| /* we have used 0000003f - 26 bits left to go */
 | |
| 
 | |
| /* 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 >= TLS1_2_VERSION) || \
 | |
|      (SSL_IS_DTLS(s) && DTLS_VERSION_GE(s->client_version, DTLS1_2_VERSION)))
 | |
| /*
 | |
|  * Determine if a client should send signature algorithms extension:
 | |
|  * as with TLS1.2 cipher we can't rely on method flags.
 | |
|  */
 | |
| # define SSL_CLIENT_USE_SIGALGS(s)        \
 | |
|     SSL_CLIENT_USE_TLS1_2_CIPHERS(s)
 | |
| 
 | |
| #  define SSL_USE_ETM(s) (s->s3->flags & TLS1_FLAGS_ENCRYPT_THEN_MAC)
 | |
| 
 | |
| /* Mostly for SSLv3 */
 | |
| # define SSL_PKEY_RSA_ENC        0
 | |
| # define SSL_PKEY_RSA_SIGN       1
 | |
| # define SSL_PKEY_DSA_SIGN       2
 | |
| # define SSL_PKEY_ECC            3
 | |
| # define SSL_PKEY_GOST01         4
 | |
| # define SSL_PKEY_GOST12_256     5
 | |
| # define SSL_PKEY_GOST12_512     6
 | |
| # define SSL_PKEY_NUM            7
 | |
| /*
 | |
|  * Pseudo-constant. GOST cipher suites can use different certs for 1
 | |
|  * SSL_CIPHER. So let's see which one we have in fact.
 | |
|  */
 | |
| # define SSL_PKEY_GOST_EC SSL_PKEY_NUM+1
 | |
| 
 | |
| /*-
 | |
|  * SSL_kRSA <- RSA_ENC
 | |
|  * 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
 | |
| */
 | |
| 
 | |
| 
 | |
| /* CipherSuite length. SSLv3 and all TLS versions. */
 | |
| #define TLS_CIPHER_LEN 2
 | |
| /* used to hold info on the particular ciphers used */
 | |
| struct ssl_cipher_st {
 | |
|     uint32_t valid;
 | |
|     const char *name;        /* text name */
 | |
|     uint32_t id;             /* id, 4 bytes, first is version */
 | |
|     /*
 | |
|      * changed in 1.0.0: these four used to be portions of a single value
 | |
|      * 'algorithms'
 | |
|      */
 | |
|     uint32_t algorithm_mkey; /* key exchange algorithm */
 | |
|     uint32_t algorithm_auth; /* server authentication */
 | |
|     uint32_t algorithm_enc;  /* symmetric encryption */
 | |
|     uint32_t algorithm_mac;  /* symmetric authentication */
 | |
|     int min_tls;             /* minimum SSL/TLS protocol version */
 | |
|     int max_tls;             /* maximum SSL/TLS protocol version */
 | |
|     int min_dtls;            /* minimum DTLS protocol version */
 | |
|     int max_dtls;            /* maximum DTLS protocol version */
 | |
|     uint32_t algo_strength;  /* strength and export flags */
 | |
|     uint32_t algorithm2;     /* Extra flags */
 | |
|     int32_t strength_bits;   /* Number of bits really used */
 | |
|     uint32_t alg_bits;       /* Number of bits for algorithm */
 | |
| };
 | |
| 
 | |
| /* Used to hold SSL/TLS functions */
 | |
| struct ssl_method_st {
 | |
|     int version;
 | |
|     unsigned flags;
 | |
|     unsigned long mask;
 | |
|     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);
 | |
|     int (*ssl_read_bytes) (SSL *s, int type, int *recvd_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);
 | |
|     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
 | |
|  *      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_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;
 | |
|     /* This is the cert and type for the other end. */
 | |
|     X509 *peer;
 | |
|     int peer_type;
 | |
|     /* Certificate chain peer sent */
 | |
|     STACK_OF(X509) *peer_chain;
 | |
|     /*
 | |
|      * 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;
 | |
|     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 */
 | |
|     unsigned long tlsext_tick_lifetime_hint; /* Session lifetime hint in seconds */
 | |
| # ifndef OPENSSL_NO_SRP
 | |
|     char *srp_username;
 | |
| # endif
 | |
|     uint32_t flags;
 | |
|     CRYPTO_RWLOCK *lock;
 | |
| };
 | |
| 
 | |
| /* 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;
 | |
|     COMP_METHOD *method;
 | |
| };
 | |
| 
 | |
| DEFINE_LHASH_OF(SSL_SESSION);
 | |
| /* Needed in ssl_cert.c */
 | |
| DEFINE_LHASH_OF(X509_NAME);
 | |
| 
 | |
| #define TLSEXT_KEYNAME_LENGTH 16
 | |
| 
 | |
| 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.
 | |
|      */
 | |
|     uint32_t 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,
 | |
|                                     const 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, const 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)
 | |
|      */
 | |
| 
 | |
|     uint32_t options;
 | |
|     uint32_t mode;
 | |
|     int min_proto_version;
 | |
|     int max_proto_version;
 | |
|     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;
 | |
| 
 | |
|     uint32_t 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;
 | |
| 
 | |
| #  ifndef OPENSSL_NO_CT
 | |
|     CTLOG_STORE *ctlog_store; /* CT Log Store */
 | |
|     /*
 | |
|     * Validates that the SCTs (Signed Certificate Timestamps) are sufficient.
 | |
|     * If they are not, the connection should be aborted.
 | |
|     */
 | |
|     ssl_ct_validation_cb ct_validation_callback;
 | |
|     void *ct_validation_callback_arg;
 | |
| #  endif
 | |
| 
 | |
|     /*
 | |
|      * If we're using more than one pipeline how should we divide the data
 | |
|      * up between the pipes?
 | |
|      */
 | |
|     unsigned int split_send_fragment;
 | |
|     /*
 | |
|      * 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;
 | |
| 
 | |
|     /* Up to how many pipelines should we use? If 0 then 1 is assumed */
 | |
|     unsigned int max_pipelines;
 | |
| 
 | |
|     /* The default read buffer length to use (0 means not set) */
 | |
|     size_t default_read_buf_len;
 | |
| 
 | |
| #  ifndef OPENSSL_NO_ENGINE
 | |
|     /*
 | |
|      * Engine to pass requests for client certs to
 | |
|      */
 | |
|     ENGINE *client_cert_engine;
 | |
| #  endif
 | |
| 
 | |
|     /* 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[TLSEXT_KEYNAME_LENGTH];
 | |
|     unsigned char tlsext_tick_hmac_key[32];
 | |
|     unsigned char tlsext_tick_aes_key[32];
 | |
|     /* 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;
 | |
| 
 | |
| #  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
 | |
| 
 | |
| #  ifndef OPENSSL_NO_SRP
 | |
|     SRP_CTX srp_ctx;            /* ctx for SRP authentication */
 | |
| #  endif
 | |
| 
 | |
| #  ifndef OPENSSL_NO_NEXTPROTONEG
 | |
|     /* Next protocol negotiation information */
 | |
| 
 | |
|     /*
 | |
|      * 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;
 | |
| 
 | |
|     /* Shared DANE context */
 | |
|     struct dane_ctx_st dane;
 | |
| 
 | |
|     /* SRTP profiles we are willing to do from RFC 5764 */
 | |
|     STACK_OF(SRTP_PROTECTION_PROFILE) *srtp_profiles;
 | |
|     /*
 | |
|      * 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 */
 | |
| 
 | |
|     /* ext status type used for CSR extension (OCSP Stapling) */
 | |
|     int tlsext_status_type;
 | |
| 
 | |
|     CRYPTO_RWLOCK *lock;
 | |
| };
 | |
| 
 | |
| 
 | |
| struct ssl_st {
 | |
|     /*
 | |
|      * protocol version (one of SSL2_VERSION, SSL3_VERSION, TLS1_VERSION,
 | |
|      * DTLS1_VERSION)
 | |
|      */
 | |
|     int version;
 | |
| 
 | |
|     /* 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;
 | |
| 
 | |
|     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? */
 | |
|     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 */
 | |
|     OSSL_STATEM statem;
 | |
| 
 | |
|     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 */
 | |
| 
 | |
|     struct ssl3_state_st *s3;   /* SSLv3 variables */
 | |
|     struct dtls1_state_st *d1;  /* DTLSv1 variables */
 | |
| 
 | |
|     /* 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;
 | |
| 
 | |
|     /* Per connection DANE state */
 | |
|     SSL_DANE dane;
 | |
| 
 | |
|     /* 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
 | |
|      */
 | |
|     uint32_t mac_flags;
 | |
|     EVP_CIPHER_CTX *enc_read_ctx; /* cryptographic state */
 | |
|     EVP_MD_CTX *read_hash;      /* used for mac generation */
 | |
|     COMP_CTX *compress;         /* compression */
 | |
|     COMP_CTX *expand;           /* uncompress */
 | |
|     EVP_CIPHER_CTX *enc_write_ctx; /* cryptographic state */
 | |
|     EVP_MD_CTX *write_hash;     /* used for mac generation */
 | |
|     /* 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
 | |
|      */
 | |
|     uint32_t 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_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;
 | |
|     /* Verified chain of peer */
 | |
|     STACK_OF(X509) *verified_chain;
 | |
|     long verify_result;
 | |
|     /* extra application data */
 | |
|     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 */
 | |
|     uint32_t options;
 | |
|     /* API behaviour */
 | |
|     uint32_t mode;
 | |
|     int min_proto_version;
 | |
|     int max_proto_version;
 | |
|     long max_cert_list;
 | |
|     int first_packet;
 | |
|     /* what was passed, used for SSLv3/TLS rollback check */
 | |
|     int client_version;
 | |
| 
 | |
|     /*
 | |
|      * If we're using more than one pipeline how should we divide the data
 | |
|      * up between the pipes?
 | |
|      */
 | |
|     unsigned int split_send_fragment;
 | |
|     /*
 | |
|      * 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;
 | |
| 
 | |
|     /* Up to how many pipelines should we use? If 0 then 1 is assumed */
 | |
|     unsigned int max_pipelines;
 | |
| 
 | |
|     /* TLS extension debug callback */
 | |
|     void (*tlsext_debug_cb) (SSL *s, int client_server, int type,
 | |
|                              const 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;
 | |
| #  ifndef OPENSSL_NO_CT
 | |
|     /*
 | |
|     * Validates that the SCTs (Signed Certificate Timestamps) are sufficient.
 | |
|     * If they are not, the connection should be aborted.
 | |
|     */
 | |
|     ssl_ct_validation_cb ct_validation_callback;
 | |
|     /* User-supplied argument tha tis passed to the ct_validation_callback */
 | |
|     void *ct_validation_callback_arg;
 | |
|     /*
 | |
|      * Consolidated stack of SCTs from all sources.
 | |
|      * Lazily populated by CT_get_peer_scts(SSL*)
 | |
|      */
 | |
|     STACK_OF(SCT) *scts;
 | |
|     /* Raw extension data, if seen */
 | |
|     unsigned char *tlsext_scts;
 | |
|     /* Length of raw extension data, if seen */
 | |
|     uint16_t tlsext_scts_len;
 | |
|     /* Have we attempted to find/parse SCTs yet? */
 | |
|     int scts_parsed;
 | |
| #  endif
 | |
|     /* 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;
 | |
| 
 | |
|     /*-
 | |
|      * 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);
 | |
| 
 | |
|     RECORD_LAYER rlayer;
 | |
| 
 | |
|     /* Default password callback. */
 | |
|     pem_password_cb *default_passwd_callback;
 | |
| 
 | |
|     /* Default password callback user data. */
 | |
|     void *default_passwd_callback_userdata;
 | |
| 
 | |
|     /* Async Job info */
 | |
|     ASYNC_JOB *job;
 | |
|     ASYNC_WAIT_CTX *waitctx;
 | |
| 
 | |
|     CRYPTO_RWLOCK *lock;
 | |
| };
 | |
| 
 | |
| 
 | |
| typedef struct ssl3_state_st {
 | |
|     long flags;
 | |
|     int read_mac_secret_size;
 | |
|     unsigned char read_mac_secret[EVP_MAX_MD_SIZE];
 | |
|     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;
 | |
|     /* used during startup, digest all incoming/outgoing packets */
 | |
|     BIO *handshake_buffer;
 | |
|     /*
 | |
|      * When handshake digest is determined, buffer is hashed and
 | |
|      * freed and MD_CTX for the required digest is stored here.
 | |
|      */
 | |
|     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 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;
 | |
| #  if !defined(OPENSSL_NO_EC) || !defined(OPENSSL_NO_DH)
 | |
|         EVP_PKEY *pkey;            /* holds short lived DH/ECDH key */
 | |
| #  endif
 | |
|         /* used for certificate requests */
 | |
|         int cert_req;
 | |
|         int ctype_num;
 | |
|         char ctype[SSL3_CT_NUMBER];
 | |
|         STACK_OF(X509_NAME) *ca_names;
 | |
|         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;
 | |
|         /* Raw values of the cipher list from a client */
 | |
|         unsigned char *ciphers_raw;
 | |
|         size_t ciphers_rawlen;
 | |
|         /* Temporary storage for premaster secret */
 | |
|         unsigned char *pms;
 | |
|         size_t pmslen;
 | |
| #ifndef OPENSSL_NO_PSK
 | |
|         /* Temporary storage for PSK key */
 | |
|         unsigned char *psk;
 | |
|         size_t psklen;
 | |
| #endif
 | |
|         /*
 | |
|          * 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;
 | |
|         /* Digest peer uses for signing */
 | |
|         const EVP_MD *peer_md;
 | |
|         /* Array of digests used for signing */
 | |
|         const EVP_MD *md[SSL_PKEY_NUM];
 | |
|         /*
 | |
|          * Set if corresponding 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.
 | |
|          */
 | |
|         uint32_t valid_flags[SSL_PKEY_NUM];
 | |
|         /*
 | |
|          * 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.
 | |
|          */
 | |
|         uint32_t mask_k;
 | |
|         uint32_t mask_a;
 | |
|         /*
 | |
|          * The following are used by the client to see if a cipher is allowed or
 | |
|          * not.  It contains the minimum and maximum version the client's using
 | |
|          * based on what it knows so far.
 | |
|          */
 | |
|         int min_ver;
 | |
|         int max_ver;
 | |
|     } 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
 | |
| 
 | |
|     /*
 | |
|      * 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;
 | |
|     size_t alpn_selected_len;
 | |
|     /* used by the server to know what options were proposed */
 | |
|     unsigned char *alpn_proposed;
 | |
|     size_t alpn_proposed_len;
 | |
|     /* used by the client to know if it actually sent alpn */
 | |
|     int alpn_sent;
 | |
| 
 | |
| #   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 */
 | |
| 
 | |
|     /* For clients: peer temporary key */
 | |
| # if !defined(OPENSSL_NO_EC) || !defined(OPENSSL_NO_DH)
 | |
|     EVP_PKEY *peer_tmp;
 | |
| # endif
 | |
| 
 | |
| } 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
 | |
| 
 | |
| /*
 | |
|  * Flag used in message reuse to indicate the buffer contains the record
 | |
|  * header as well as the the handshake message header.
 | |
|  */
 | |
| #  define DTLS1_SKIP_RECORD_HEADER                 2
 | |
| 
 | |
| struct dtls1_retransmit_state {
 | |
|     EVP_CIPHER_CTX *enc_write_ctx; /* cryptographic state */
 | |
|     EVP_MD_CTX *write_hash;     /* used for mac generation */
 | |
|     COMP_CTX *compress;         /* compression */
 | |
|     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 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 hm_fragment_st {
 | |
|     struct hm_header_st msg_header;
 | |
|     unsigned char *fragment;
 | |
|     unsigned char *reassembly;
 | |
| } hm_fragment;
 | |
| 
 | |
| typedef struct pqueue_st pqueue;
 | |
| typedef struct pitem_st pitem;
 | |
| 
 | |
| struct pitem_st {
 | |
|     unsigned char priority[8];  /* 64-bit value in big-endian encoding */
 | |
|     void *data;
 | |
|     pitem *next;
 | |
| };
 | |
| 
 | |
| typedef struct pitem_st *piterator;
 | |
| 
 | |
| pitem *pitem_new(unsigned char *prio64be, void *data);
 | |
| void pitem_free(pitem *item);
 | |
| pqueue* pqueue_new(void);
 | |
| void pqueue_free(pqueue *pq);
 | |
| pitem *pqueue_insert(pqueue *pq, pitem *item);
 | |
| pitem *pqueue_peek(pqueue *pq);
 | |
| pitem *pqueue_pop(pqueue *pq);
 | |
| pitem *pqueue_find(pqueue *pq, unsigned char *prio64be);
 | |
| pitem *pqueue_iterator(pqueue *pq);
 | |
| pitem *pqueue_next(piterator *iter);
 | |
| int pqueue_size(pqueue *pq);
 | |
| 
 | |
| typedef struct dtls1_state_st {
 | |
|     unsigned char cookie[DTLS1_COOKIE_LENGTH];
 | |
|     unsigned int cookie_len;
 | |
|     unsigned int cookie_verified;
 | |
| 
 | |
|     /* handshake message numbers */
 | |
|     unsigned short handshake_write_seq;
 | |
|     unsigned short next_handshake_write_seq;
 | |
|     unsigned short handshake_read_seq;
 | |
| 
 | |
|     /* Buffered handshake messages */
 | |
|     pqueue *buffered_messages;
 | |
|     /* Buffered (sent) handshake records */
 | |
|     pqueue *sent_messages;
 | |
| 
 | |
|     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;
 | |
| 
 | |
|     unsigned int retransmitting;
 | |
| #  ifndef OPENSSL_NO_SCTP
 | |
|     int shutdown_received;
 | |
| #  endif
 | |
| } DTLS1_STATE;
 | |
| 
 | |
| 
 | |
| 
 | |
| # 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;
 | |
|     /* Chain for this certificate */
 | |
|     STACK_OF(X509) *chain;
 | |
| 
 | |
|     /*-
 | |
|      * 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;
 | |
| } 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.
 | |
|      */
 | |
|     uint32_t 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;
 | |
| # ifndef OPENSSL_NO_DH
 | |
|     EVP_PKEY *dh_tmp;
 | |
|     DH *(*dh_tmp_cb) (SSL *ssl, int is_export, int keysize);
 | |
|     int dh_tmp_auto;
 | |
| # endif
 | |
|     /* Flags related to certificates */
 | |
|     uint32_t 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;
 | |
|     /*
 | |
|      * 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;
 | |
|     /* Custom extension methods for server and client */
 | |
|     custom_ext_methods cli_ext;
 | |
|     custom_ext_methods srv_ext;
 | |
|     /* Security callback */
 | |
|     int (*sec_cb) (const SSL *s, const SSL_CTX *ctx, int op, int bits, int nid,
 | |
|                    void *other, void *ex);
 | |
|     /* Security level */
 | |
|     int sec_level;
 | |
|     void *sec_ex;
 | |
| #ifndef OPENSSL_NO_PSK
 | |
|     /* If not NULL psk identity hint to use for servers */
 | |
|     char *psk_identity_hint;
 | |
| #endif
 | |
|     int references;             /* >1 only if SSL_copy_session_id is used */
 | |
|     CRYPTO_RWLOCK *lock;
 | |
| } 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 FP_ICC  (int (*)(const void *,const void *))
 | |
| 
 | |
| /*
 | |
|  * 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 *, SSL3_RECORD *, unsigned int, int);
 | |
|     int (*mac) (SSL *, SSL3_RECORD *, 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;
 | |
|     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 */
 | |
|     uint32_t enc_flags;
 | |
|     /* Handshake header length */
 | |
|     unsigned int hhlen;
 | |
|     /* Set the handshake header */
 | |
|     int (*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;
 | |
| 
 | |
| __owur const SSL_METHOD *ssl_bad_method(int ver);
 | |
| __owur const SSL_METHOD *sslv3_method(void);
 | |
| __owur const SSL_METHOD *sslv3_server_method(void);
 | |
| __owur const SSL_METHOD *sslv3_client_method(void);
 | |
| __owur const SSL_METHOD *tlsv1_method(void);
 | |
| __owur const SSL_METHOD *tlsv1_server_method(void);
 | |
| __owur const SSL_METHOD *tlsv1_client_method(void);
 | |
| __owur const SSL_METHOD *tlsv1_1_method(void);
 | |
| __owur const SSL_METHOD *tlsv1_1_server_method(void);
 | |
| __owur const SSL_METHOD *tlsv1_1_client_method(void);
 | |
| __owur const SSL_METHOD *tlsv1_2_method(void);
 | |
| __owur const SSL_METHOD *tlsv1_2_server_method(void);
 | |
| __owur const SSL_METHOD *tlsv1_2_client_method(void);
 | |
| __owur const SSL_METHOD *dtlsv1_method(void);
 | |
| __owur const SSL_METHOD *dtlsv1_server_method(void);
 | |
| __owur const SSL_METHOD *dtlsv1_client_method(void);
 | |
| __owur const SSL_METHOD *dtlsv1_2_method(void);
 | |
| __owur const SSL_METHOD *dtlsv1_2_server_method(void);
 | |
| __owur const SSL_METHOD *dtlsv1_2_client_method(void);
 | |
| 
 | |
| 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;
 | |
| 
 | |
| /*
 | |
|  * Flags for SSL methods
 | |
|  */
 | |
| #define SSL_METHOD_NO_FIPS      (1U<<0)
 | |
| #define SSL_METHOD_NO_SUITEB    (1U<<1)
 | |
| 
 | |
| # define IMPLEMENT_tls_meth_func(version, flags, mask, func_name, s_accept, \
 | |
|                                  s_connect, enc_data) \
 | |
| const SSL_METHOD *func_name(void)  \
 | |
|         { \
 | |
|         static const SSL_METHOD func_name##_data= { \
 | |
|                 version, \
 | |
|                 flags, \
 | |
|                 mask, \
 | |
|                 tls1_new, \
 | |
|                 tls1_clear, \
 | |
|                 tls1_free, \
 | |
|                 s_accept, \
 | |
|                 s_connect, \
 | |
|                 ssl3_read, \
 | |
|                 ssl3_peek, \
 | |
|                 ssl3_write, \
 | |
|                 ssl3_shutdown, \
 | |
|                 ssl3_renegotiate, \
 | |
|                 ssl3_renegotiate_check, \
 | |
|                 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, \
 | |
|                 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) \
 | |
| const SSL_METHOD *func_name(void)  \
 | |
|         { \
 | |
|         static const SSL_METHOD func_name##_data= { \
 | |
|                 SSL3_VERSION, \
 | |
|                 SSL_METHOD_NO_FIPS | SSL_METHOD_NO_SUITEB, \
 | |
|                 SSL_OP_NO_SSLv3, \
 | |
|                 ssl3_new, \
 | |
|                 ssl3_clear, \
 | |
|                 ssl3_free, \
 | |
|                 s_accept, \
 | |
|                 s_connect, \
 | |
|                 ssl3_read, \
 | |
|                 ssl3_peek, \
 | |
|                 ssl3_write, \
 | |
|                 ssl3_shutdown, \
 | |
|                 ssl3_renegotiate, \
 | |
|                 ssl3_renegotiate_check, \
 | |
|                 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, \
 | |
|                 ssl3_default_timeout, \
 | |
|                 &SSLv3_enc_data, \
 | |
|                 ssl_undefined_void_function, \
 | |
|                 ssl3_callback_ctrl, \
 | |
|                 ssl3_ctx_callback_ctrl, \
 | |
|         }; \
 | |
|         return &func_name##_data; \
 | |
|         }
 | |
| 
 | |
| # define IMPLEMENT_dtls1_meth_func(version, flags, mask, func_name, s_accept, \
 | |
|                                         s_connect, enc_data) \
 | |
| const SSL_METHOD *func_name(void)  \
 | |
|         { \
 | |
|         static const SSL_METHOD func_name##_data= { \
 | |
|                 version, \
 | |
|                 flags, \
 | |
|                 mask, \
 | |
|                 dtls1_new, \
 | |
|                 dtls1_clear, \
 | |
|                 dtls1_free, \
 | |
|                 s_accept, \
 | |
|                 s_connect, \
 | |
|                 ssl3_read, \
 | |
|                 ssl3_peek, \
 | |
|                 ssl3_write, \
 | |
|                 dtls1_shutdown, \
 | |
|                 ssl3_renegotiate, \
 | |
|                 ssl3_renegotiate_check, \
 | |
|                 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, \
 | |
|                 ssl3_get_cipher, \
 | |
|                 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 (*p_ssl3_setup_buffers) (SSL *s);
 | |
| # ifndef OPENSSL_NO_HEARTBEATS
 | |
|     int (*p_dtls1_process_heartbeat) (SSL *s,
 | |
|         unsigned char *p, unsigned int length);
 | |
| # endif
 | |
| };
 | |
| 
 | |
| const char *ssl_protocol_to_string(int version);
 | |
| 
 | |
| # ifndef OPENSSL_UNIT_TEST
 | |
| 
 | |
| void ssl_clear_cipher_ctx(SSL *s);
 | |
| int ssl_clear_bad_session(SSL *s);
 | |
| __owur CERT *ssl_cert_new(void);
 | |
| __owur CERT *ssl_cert_dup(CERT *cert);
 | |
| void ssl_cert_clear_certs(CERT *c);
 | |
| void ssl_cert_free(CERT *c);
 | |
| __owur int ssl_get_new_session(SSL *s, int session);
 | |
| __owur int ssl_get_prev_session(SSL *s, const PACKET *ext,
 | |
|                                 const PACKET *session_id);
 | |
| __owur SSL_SESSION *ssl_session_dup(SSL_SESSION *src, int ticket);
 | |
| __owur 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);
 | |
| __owur int ssl_cipher_ptr_id_cmp(const SSL_CIPHER *const *ap,
 | |
|                           const SSL_CIPHER *const *bp);
 | |
| __owur 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);
 | |
| __owur 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);
 | |
| __owur int ssl_cipher_get_cert_index(const SSL_CIPHER *c);
 | |
| __owur const SSL_CIPHER *ssl_get_cipher_by_char(SSL *ssl, const unsigned char *ptr);
 | |
| __owur int ssl_cert_set0_chain(SSL *s, SSL_CTX *ctx, STACK_OF(X509) *chain);
 | |
| __owur int ssl_cert_set1_chain(SSL *s, SSL_CTX *ctx, STACK_OF(X509) *chain);
 | |
| __owur int ssl_cert_add0_chain_cert(SSL *s, SSL_CTX *ctx, X509 *x);
 | |
| __owur int ssl_cert_add1_chain_cert(SSL *s, SSL_CTX *ctx, X509 *x);
 | |
| __owur int ssl_cert_select_current(CERT *c, X509 *x);
 | |
| __owur int ssl_cert_set_current(CERT *c, long arg);
 | |
| __owur 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);
 | |
| 
 | |
| __owur int ssl_verify_cert_chain(SSL *s, STACK_OF(X509) *sk);
 | |
| __owur int ssl_add_cert_chain(SSL *s, CERT_PKEY *cpk, unsigned long *l);
 | |
| __owur int ssl_build_cert_chain(SSL *s, SSL_CTX *ctx, int flags);
 | |
| __owur int ssl_cert_set_cert_store(CERT *c, X509_STORE *store, int chain, int ref);
 | |
| 
 | |
| __owur int ssl_security(const SSL *s, int op, int bits, int nid, void *other);
 | |
| __owur int ssl_ctx_security(const SSL_CTX *ctx, int op, int bits, int nid, void *other);
 | |
| 
 | |
| int ssl_undefined_function(SSL *s);
 | |
| __owur int ssl_undefined_void_function(void);
 | |
| __owur int ssl_undefined_const_function(const SSL *s);
 | |
| __owur CERT_PKEY *ssl_get_server_send_pkey(SSL *s);
 | |
| __owur int ssl_get_server_cert_serverinfo(SSL *s, const unsigned char **serverinfo,
 | |
|                                    size_t *serverinfo_length);
 | |
| __owur EVP_PKEY *ssl_get_sign_pkey(SSL *s, const SSL_CIPHER *c, const EVP_MD **pmd);
 | |
| __owur int ssl_cert_type(X509 *x, EVP_PKEY *pkey);
 | |
| void ssl_set_masks(SSL *s);
 | |
| __owur STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s);
 | |
| __owur int ssl_verify_alarm_type(long type);
 | |
| void ssl_sort_cipher_list(void);
 | |
| void ssl_load_ciphers(void);
 | |
| __owur int ssl_fill_hello_random(SSL *s, int server, unsigned char *field, int len);
 | |
| __owur int ssl_generate_master_secret(SSL *s, unsigned char *pms, size_t pmslen,
 | |
|                                       int free_pms);
 | |
| __owur EVP_PKEY *ssl_generate_pkey(EVP_PKEY *pm, int nid);
 | |
| __owur int ssl_derive(SSL *s, EVP_PKEY *privkey, EVP_PKEY *pubkey);
 | |
| __owur EVP_PKEY *ssl_dh_to_pkey(DH *dh);
 | |
| 
 | |
| __owur const SSL_CIPHER *ssl3_get_cipher_by_char(const unsigned char *p);
 | |
| __owur int ssl3_put_cipher_by_char(const SSL_CIPHER *c, unsigned char *p);
 | |
| int ssl3_init_finished_mac(SSL *s);
 | |
| __owur int ssl3_setup_key_block(SSL *s);
 | |
| __owur int ssl3_change_cipher_state(SSL *s, int which);
 | |
| void ssl3_cleanup_key_block(SSL *s);
 | |
| __owur int ssl3_do_write(SSL *s, int type);
 | |
| int ssl3_send_alert(SSL *s, int level, int desc);
 | |
| __owur int ssl3_generate_master_secret(SSL *s, unsigned char *out,
 | |
|                                 unsigned char *p, int len);
 | |
| __owur int ssl3_get_req_cert_type(SSL *s, unsigned char *p);
 | |
| __owur int ssl3_num_ciphers(void);
 | |
| __owur const SSL_CIPHER *ssl3_get_cipher(unsigned int u);
 | |
| int ssl3_renegotiate(SSL *ssl);
 | |
| int ssl3_renegotiate_check(SSL *ssl);
 | |
| __owur int ssl3_dispatch_alert(SSL *s);
 | |
| __owur int ssl3_final_finish_mac(SSL *s, const char *sender, int slen,
 | |
|                           unsigned char *p);
 | |
| __owur int ssl3_finish_mac(SSL *s, const unsigned char *buf, int len);
 | |
| void ssl3_free_digest_list(SSL *s);
 | |
| __owur unsigned long ssl3_output_cert_chain(SSL *s, CERT_PKEY *cpk);
 | |
| __owur const SSL_CIPHER *ssl3_choose_cipher(SSL *ssl,
 | |
|                                             STACK_OF(SSL_CIPHER) *clnt,
 | |
|                                             STACK_OF(SSL_CIPHER) *srvr);
 | |
| __owur int ssl3_digest_cached_records(SSL *s, int keep);
 | |
| __owur int ssl3_new(SSL *s);
 | |
| void ssl3_free(SSL *s);
 | |
| __owur int ssl3_read(SSL *s, void *buf, int len);
 | |
| __owur int ssl3_peek(SSL *s, void *buf, int len);
 | |
| __owur int ssl3_write(SSL *s, const void *buf, int len);
 | |
| __owur int ssl3_shutdown(SSL *s);
 | |
| void ssl3_clear(SSL *s);
 | |
| __owur long ssl3_ctrl(SSL *s, int cmd, long larg, void *parg);
 | |
| __owur long ssl3_ctx_ctrl(SSL_CTX *s, int cmd, long larg, void *parg);
 | |
| __owur long ssl3_callback_ctrl(SSL *s, int cmd, void (*fp) (void));
 | |
| __owur long ssl3_ctx_callback_ctrl(SSL_CTX *s, int cmd, void (*fp) (void));
 | |
| 
 | |
| __owur int ssl3_do_change_cipher_spec(SSL *ssl);
 | |
| __owur long ssl3_default_timeout(void);
 | |
| 
 | |
| __owur int ssl3_set_handshake_header(SSL *s, int htype, unsigned long len);
 | |
| __owur int ssl3_handshake_write(SSL *s);
 | |
| 
 | |
| __owur int ssl_allow_compression(SSL *s);
 | |
| 
 | |
| __owur int ssl_version_supported(const SSL *s, int version);
 | |
| 
 | |
| __owur int ssl_set_client_hello_version(SSL *s);
 | |
| __owur int ssl_check_version_downgrade(SSL *s);
 | |
| __owur int ssl_set_version_bound(int method_version, int version, int *bound);
 | |
| __owur int ssl_choose_server_version(SSL *s);
 | |
| __owur int ssl_choose_client_version(SSL *s, int version);
 | |
| int ssl_get_client_min_max_version(const SSL *s, int *min_version, int *max_version);
 | |
| 
 | |
| __owur long tls1_default_timeout(void);
 | |
| __owur int dtls1_do_write(SSL *s, int type);
 | |
| void dtls1_set_message_header(SSL *s,
 | |
|                               unsigned char mt,
 | |
|                               unsigned long len,
 | |
|                               unsigned long frag_off,
 | |
|                               unsigned long frag_len);
 | |
| 
 | |
| __owur int dtls1_write_app_data_bytes(SSL *s, int type, const void *buf, int len);
 | |
| 
 | |
| __owur int dtls1_read_failed(SSL *s, int code);
 | |
| __owur int dtls1_buffer_message(SSL *s, int ccs);
 | |
| __owur int dtls1_retransmit_message(SSL *s, unsigned short seq, int *found);
 | |
| __owur 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);
 | |
| __owur long dtls1_default_timeout(void);
 | |
| __owur struct timeval *dtls1_get_timeout(SSL *s, struct timeval *timeleft);
 | |
| __owur int dtls1_check_timeout_num(SSL *s);
 | |
| __owur int dtls1_handle_timeout(SSL *s);
 | |
| void dtls1_start_timer(SSL *s);
 | |
| void dtls1_stop_timer(SSL *s);
 | |
| __owur int dtls1_is_timer_expired(SSL *s);
 | |
| void dtls1_double_timeout(SSL *s);
 | |
| __owur unsigned int dtls_raw_hello_verify_request(unsigned char *buf,
 | |
|                                                   unsigned char *cookie,
 | |
|                                                   unsigned char cookie_len);
 | |
| __owur int dtls1_send_newsession_ticket(SSL *s);
 | |
| __owur unsigned int dtls1_min_mtu(SSL *s);
 | |
| void dtls1_hm_fragment_free(hm_fragment *frag);
 | |
| __owur int dtls1_query_mtu(SSL *s);
 | |
| 
 | |
| __owur 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));
 | |
| 
 | |
| __owur int dtls1_new(SSL *s);
 | |
| void dtls1_free(SSL *s);
 | |
| void dtls1_clear(SSL *s);
 | |
| long dtls1_ctrl(SSL *s, int cmd, long larg, void *parg);
 | |
| __owur int dtls1_shutdown(SSL *s);
 | |
| 
 | |
| __owur int dtls1_dispatch_alert(SSL *s);
 | |
| 
 | |
| __owur int ssl_init_wbio_buffer(SSL *s);
 | |
| void ssl_free_wbio_buffer(SSL *s);
 | |
| 
 | |
| __owur int tls1_change_cipher_state(SSL *s, int which);
 | |
| __owur int tls1_setup_key_block(SSL *s);
 | |
| __owur int tls1_final_finish_mac(SSL *s,
 | |
|                           const char *str, int slen, unsigned char *p);
 | |
| __owur int tls1_generate_master_secret(SSL *s, unsigned char *out,
 | |
|                                 unsigned char *p, int len);
 | |
| __owur 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);
 | |
| __owur int tls1_alert_code(int code);
 | |
| __owur int ssl3_alert_code(int code);
 | |
| __owur int ssl_ok(SSL *s);
 | |
| 
 | |
| #  ifndef OPENSSL_NO_EC
 | |
| __owur 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
 | |
| __owur int tls1_ec_curve_id2nid(int curve_id);
 | |
| __owur int tls1_ec_nid2curve_id(int nid);
 | |
| __owur int tls1_check_curve(SSL *s, const unsigned char *p, size_t len);
 | |
| __owur int tls1_shared_curve(SSL *s, int nmatch);
 | |
| __owur int tls1_set_curves(unsigned char **pext, size_t *pextlen,
 | |
|                     int *curves, size_t ncurves);
 | |
| __owur int tls1_set_curves_list(unsigned char **pext, size_t *pextlen,
 | |
|                          const char *str);
 | |
| __owur int tls1_check_ec_tmp_key(SSL *s, unsigned long id);
 | |
| #  endif                        /* OPENSSL_NO_EC */
 | |
| 
 | |
| __owur int tls1_shared_list(SSL *s,
 | |
|                      const unsigned char *l1, size_t l1len,
 | |
|                      const unsigned char *l2, size_t l2len, int nmatch);
 | |
| __owur unsigned char *ssl_add_clienthello_tlsext(SSL *s, unsigned char *buf,
 | |
|                                           unsigned char *limit, int *al);
 | |
| __owur unsigned char *ssl_add_serverhello_tlsext(SSL *s, unsigned char *buf,
 | |
|                                           unsigned char *limit, int *al);
 | |
| __owur int ssl_parse_clienthello_tlsext(SSL *s, PACKET *pkt);
 | |
| void ssl_set_default_md(SSL *s);
 | |
| __owur int tls1_set_server_sigalgs(SSL *s);
 | |
| __owur int ssl_check_clienthello_tlsext_late(SSL *s);
 | |
| __owur int ssl_parse_serverhello_tlsext(SSL *s, PACKET *pkt);
 | |
| __owur int ssl_prepare_clienthello_tlsext(SSL *s);
 | |
| __owur int ssl_prepare_serverhello_tlsext(SSL *s);
 | |
| 
 | |
| #  ifndef OPENSSL_NO_HEARTBEATS
 | |
| __owur int dtls1_heartbeat(SSL *s);
 | |
| __owur int dtls1_process_heartbeat(SSL *s, unsigned char *p, unsigned int length);
 | |
| #  endif
 | |
| 
 | |
| __owur int tls_check_serverhello_tlsext_early(SSL *s, const PACKET *ext,
 | |
|                                               const PACKET *session_id,
 | |
|                                               SSL_SESSION **ret);
 | |
| 
 | |
| __owur int tls12_get_sigandhash(unsigned char *p, const EVP_PKEY *pk,
 | |
|                          const EVP_MD *md);
 | |
| __owur int tls12_get_sigid(const EVP_PKEY *pk);
 | |
| __owur const EVP_MD *tls12_get_hash(unsigned char hash_alg);
 | |
| void ssl_set_sig_mask(uint32_t *pmask_a, SSL *s, int op);
 | |
| 
 | |
| __owur int tls1_set_sigalgs_list(CERT *c, const char *str, int client);
 | |
| __owur 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);
 | |
| 
 | |
| #ifndef OPENSSL_NO_CT
 | |
| __owur int ssl_validate_ct(SSL *s);
 | |
| #endif
 | |
| 
 | |
| #  ifndef OPENSSL_NO_DH
 | |
| __owur DH *ssl_get_auto_dh(SSL *s);
 | |
| #  endif
 | |
| 
 | |
| __owur int ssl_security_cert(SSL *s, SSL_CTX *ctx, X509 *x, int vfy, int is_ee);
 | |
| __owur int ssl_security_cert_chain(SSL *s, STACK_OF(X509) *sk, X509 *ex, int vfy);
 | |
| 
 | |
| __owur EVP_MD_CTX *ssl_replace_hash(EVP_MD_CTX **hash, const EVP_MD *md);
 | |
| void ssl_clear_hash_ctx(EVP_MD_CTX **hash);
 | |
| __owur int ssl_add_serverhello_renegotiate_ext(SSL *s, unsigned char *p, int *len,
 | |
|                                         int maxlen);
 | |
| __owur int ssl_parse_serverhello_renegotiate_ext(SSL *s, PACKET *pkt,
 | |
|                                           int *al);
 | |
| __owur int ssl_add_clienthello_renegotiate_ext(SSL *s, unsigned char *p, int *len,
 | |
|                                         int maxlen);
 | |
| __owur int ssl_parse_clienthello_renegotiate_ext(SSL *s, PACKET *pkt, int *al);
 | |
| __owur long ssl_get_algorithm2(SSL *s);
 | |
| __owur size_t tls12_copy_sigalgs(SSL *s, unsigned char *out,
 | |
|                           const unsigned char *psig, size_t psiglen);
 | |
| __owur int tls1_save_sigalgs(SSL *s, const unsigned char *data, int dsize);
 | |
| __owur int tls1_process_sigalgs(SSL *s);
 | |
| __owur size_t tls12_get_psigalgs(SSL *s, const unsigned char **psigs);
 | |
| __owur 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);
 | |
| __owur int ssl_cipher_disabled(SSL *s, const SSL_CIPHER *c, int op);
 | |
| 
 | |
| __owur int ssl_add_clienthello_use_srtp_ext(SSL *s, unsigned char *p, int *len,
 | |
|                                      int maxlen);
 | |
| __owur int ssl_parse_clienthello_use_srtp_ext(SSL *s, PACKET *pkt, int *al);
 | |
| __owur int ssl_add_serverhello_use_srtp_ext(SSL *s, unsigned char *p, int *len,
 | |
|                                      int maxlen);
 | |
| __owur int ssl_parse_serverhello_use_srtp_ext(SSL *s, PACKET *pkt, int *al);
 | |
| 
 | |
| __owur int ssl_handshake_hash(SSL *s, unsigned char *out, int outlen);
 | |
| __owur const EVP_MD *ssl_md(int idx);
 | |
| __owur const EVP_MD *ssl_handshake_md(SSL *s);
 | |
| __owur const EVP_MD *ssl_prf_md(SSL *s);
 | |
| 
 | |
| /* s3_cbc.c */
 | |
| __owur char ssl3_cbc_record_digest_supported(const EVP_MD_CTX *ctx);
 | |
| __owur int 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);
 | |
| 
 | |
| __owur int 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);
 | |
| 
 | |
| __owur int srp_generate_server_master_secret(SSL *s);
 | |
| __owur int srp_generate_client_master_secret(SSL *s);
 | |
| __owur int srp_verify_server_param(SSL *s, int *al);
 | |
| 
 | |
| /* t1_ext.c */
 | |
| 
 | |
| void custom_ext_init(custom_ext_methods *meths);
 | |
| 
 | |
| __owur int custom_ext_parse(SSL *s, int server,
 | |
|                      unsigned int ext_type,
 | |
|                      const unsigned char *ext_data, size_t ext_size, int *al);
 | |
| __owur int custom_ext_add(SSL *s, int server,
 | |
|                    unsigned char **pret, unsigned char *limit, int *al);
 | |
| 
 | |
| __owur int custom_exts_copy(custom_ext_methods *dst, const custom_ext_methods *src);
 | |
| void custom_exts_free(custom_ext_methods *exts);
 | |
| 
 | |
| void ssl_comp_free_compression_methods_int(void);
 | |
| 
 | |
| # 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 dtls1_process_heartbeat SSL_test_functions()->p_dtls1_process_heartbeat
 | |
| 
 | |
| # endif
 | |
| #endif
 |