f9df0a7775
Now that we are moving to support named FFDH groups, these fields are not ec-specific, so we need them to always be available. This fixes the no-ec --strict-warnings build, since gcc 5.4.0-6ubuntu1~16.04.4 appears to always try to compile the static inline functions from ssl_locl.h, even when they are not used in the current compilation unit. Reviewed-by: Rich Salz <rsalz@openssl.org> Reviewed-by: Richard Levitte <levitte@openssl.org> (Merged from https://github.com/openssl/openssl/pull/4518)
2511 lines
95 KiB
C
2511 lines
95 KiB
C
/*
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* Copyright 1995-2017 The OpenSSL Project Authors. All Rights Reserved.
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* Copyright (c) 2002, Oracle and/or its affiliates. All rights reserved
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* Copyright 2005 Nokia. All rights reserved.
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*
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* Licensed under the OpenSSL license (the "License"). You may not use
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* this file except in compliance with the License. You can obtain a copy
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* in the file LICENSE in the source distribution or at
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* https://www.openssl.org/source/license.html
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*/
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#ifndef HEADER_SSL_LOCL_H
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# define HEADER_SSL_LOCL_H
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# include "e_os.h" /* struct timeval for DTLS */
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# include <stdlib.h>
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# include <time.h>
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# include <string.h>
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# include <errno.h>
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# include <openssl/buffer.h>
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# include <openssl/comp.h>
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# include <openssl/bio.h>
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# include <openssl/rsa.h>
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# include <openssl/dsa.h>
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# include <openssl/err.h>
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# include <openssl/ssl.h>
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# include <openssl/async.h>
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# include <openssl/symhacks.h>
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# include <openssl/ct.h>
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# include "record/record.h"
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# include "statem/statem.h"
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# include "packet_locl.h"
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# include "internal/dane.h"
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# include "internal/refcount.h"
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# ifdef OPENSSL_BUILD_SHLIBSSL
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# undef OPENSSL_EXTERN
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# define OPENSSL_EXTERN OPENSSL_EXPORT
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# endif
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# define c2l(c,l) (l = ((unsigned long)(*((c)++))) , \
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l|=(((unsigned long)(*((c)++)))<< 8), \
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l|=(((unsigned long)(*((c)++)))<<16), \
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l|=(((unsigned long)(*((c)++)))<<24))
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/* NOTE - c is not incremented as per c2l */
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# define c2ln(c,l1,l2,n) { \
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c+=n; \
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l1=l2=0; \
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switch (n) { \
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case 8: l2 =((unsigned long)(*(--(c))))<<24; \
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case 7: l2|=((unsigned long)(*(--(c))))<<16; \
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case 6: l2|=((unsigned long)(*(--(c))))<< 8; \
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case 5: l2|=((unsigned long)(*(--(c)))); \
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case 4: l1 =((unsigned long)(*(--(c))))<<24; \
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case 3: l1|=((unsigned long)(*(--(c))))<<16; \
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case 2: l1|=((unsigned long)(*(--(c))))<< 8; \
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case 1: l1|=((unsigned long)(*(--(c)))); \
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} \
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}
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# define l2c(l,c) (*((c)++)=(unsigned char)(((l) )&0xff), \
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*((c)++)=(unsigned char)(((l)>> 8)&0xff), \
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*((c)++)=(unsigned char)(((l)>>16)&0xff), \
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*((c)++)=(unsigned char)(((l)>>24)&0xff))
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# define n2l(c,l) (l =((unsigned long)(*((c)++)))<<24, \
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l|=((unsigned long)(*((c)++)))<<16, \
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l|=((unsigned long)(*((c)++)))<< 8, \
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l|=((unsigned long)(*((c)++))))
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# define n2l8(c,l) (l =((uint64_t)(*((c)++)))<<56, \
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l|=((uint64_t)(*((c)++)))<<48, \
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l|=((uint64_t)(*((c)++)))<<40, \
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l|=((uint64_t)(*((c)++)))<<32, \
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l|=((uint64_t)(*((c)++)))<<24, \
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l|=((uint64_t)(*((c)++)))<<16, \
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l|=((uint64_t)(*((c)++)))<< 8, \
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l|=((uint64_t)(*((c)++))))
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# define l2n(l,c) (*((c)++)=(unsigned char)(((l)>>24)&0xff), \
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*((c)++)=(unsigned char)(((l)>>16)&0xff), \
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*((c)++)=(unsigned char)(((l)>> 8)&0xff), \
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*((c)++)=(unsigned char)(((l) )&0xff))
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# define l2n6(l,c) (*((c)++)=(unsigned char)(((l)>>40)&0xff), \
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*((c)++)=(unsigned char)(((l)>>32)&0xff), \
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*((c)++)=(unsigned char)(((l)>>24)&0xff), \
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*((c)++)=(unsigned char)(((l)>>16)&0xff), \
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*((c)++)=(unsigned char)(((l)>> 8)&0xff), \
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*((c)++)=(unsigned char)(((l) )&0xff))
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# 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), \
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*((c)++)=(unsigned char)(((l)>>32)&0xff), \
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*((c)++)=(unsigned char)(((l)>>24)&0xff), \
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*((c)++)=(unsigned char)(((l)>>16)&0xff), \
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*((c)++)=(unsigned char)(((l)>> 8)&0xff), \
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*((c)++)=(unsigned char)(((l) )&0xff))
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/* NOTE - c is not incremented as per l2c */
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# define l2cn(l1,l2,c,n) { \
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c+=n; \
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switch (n) { \
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case 8: *(--(c))=(unsigned char)(((l2)>>24)&0xff); \
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case 7: *(--(c))=(unsigned char)(((l2)>>16)&0xff); \
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case 6: *(--(c))=(unsigned char)(((l2)>> 8)&0xff); \
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case 5: *(--(c))=(unsigned char)(((l2) )&0xff); \
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case 4: *(--(c))=(unsigned char)(((l1)>>24)&0xff); \
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case 3: *(--(c))=(unsigned char)(((l1)>>16)&0xff); \
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case 2: *(--(c))=(unsigned char)(((l1)>> 8)&0xff); \
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case 1: *(--(c))=(unsigned char)(((l1) )&0xff); \
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} \
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}
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# define n2s(c,s) ((s=(((unsigned int)((c)[0]))<< 8)| \
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(((unsigned int)((c)[1])) )),(c)+=2)
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# define s2n(s,c) (((c)[0]=(unsigned char)(((s)>> 8)&0xff), \
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(c)[1]=(unsigned char)(((s) )&0xff)),(c)+=2)
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# define n2l3(c,l) ((l =(((unsigned long)((c)[0]))<<16)| \
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(((unsigned long)((c)[1]))<< 8)| \
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(((unsigned long)((c)[2])) )),(c)+=3)
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# define l2n3(l,c) (((c)[0]=(unsigned char)(((l)>>16)&0xff), \
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(c)[1]=(unsigned char)(((l)>> 8)&0xff), \
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(c)[2]=(unsigned char)(((l) )&0xff)),(c)+=3)
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/*
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* DTLS version numbers are strange because they're inverted. Except for
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* DTLS1_BAD_VER, which should be considered "lower" than the rest.
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*/
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# define dtls_ver_ordinal(v1) (((v1) == DTLS1_BAD_VER) ? 0xff00 : (v1))
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# define DTLS_VERSION_GT(v1, v2) (dtls_ver_ordinal(v1) < dtls_ver_ordinal(v2))
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# define DTLS_VERSION_GE(v1, v2) (dtls_ver_ordinal(v1) <= dtls_ver_ordinal(v2))
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# define DTLS_VERSION_LT(v1, v2) (dtls_ver_ordinal(v1) > dtls_ver_ordinal(v2))
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# define DTLS_VERSION_LE(v1, v2) (dtls_ver_ordinal(v1) >= dtls_ver_ordinal(v2))
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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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# define SSL_kRSAPSK 0x00000040U
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# define SSL_kECDHEPSK 0x00000080U
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# define SSL_kDHEPSK 0x00000100U
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/* all PSK */
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# define SSL_PSK (SSL_kPSK | SSL_kRSAPSK | SSL_kECDHEPSK | SSL_kDHEPSK)
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/* Any appropriate key exchange algorithm (for TLS 1.3 ciphersuites) */
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# define SSL_kANY 0x00000000U
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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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/* Any appropriate signature auth (for TLS 1.3 ciphersuites) */
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# define SSL_aANY 0x00000000U
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/* All bits requiring a certificate */
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#define SSL_aCERT \
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(SSL_aRSA | SSL_aDSS | SSL_aECDSA | SSL_aGOST01 | SSL_aGOST12)
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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_ARIA128GCM 0x00100000U
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# define SSL_ARIA256GCM 0x00200000U
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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)
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# define SSL_ARIAGCM (SSL_ARIA128GCM | SSL_ARIA256GCM)
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# define SSL_ARIA (SSL_ARIAGCM)
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/* Bits for algorithm_mac (symmetric authentication) */
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# define SSL_MD5 0x00000001U
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# define SSL_SHA1 0x00000002U
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# define SSL_GOST94 0x00000004U
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# define SSL_GOST89MAC 0x00000008U
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# define SSL_SHA256 0x00000010U
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# define SSL_SHA384 0x00000020U
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/* Not a real MAC, just an indication it is part of cipher */
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# define SSL_AEAD 0x00000040U
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# define SSL_GOST12_256 0x00000080U
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# define SSL_GOST89MAC12 0x00000100U
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# define SSL_GOST12_512 0x00000200U
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/*
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* When adding new digest in the ssl_ciph.c and increment SSL_MD_NUM_IDX make
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* sure to update this constant too
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*/
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# define SSL_MD_MD5_IDX 0
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# define SSL_MD_SHA1_IDX 1
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# 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
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# define SSL_MD_MD5_SHA1_IDX 9
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# define SSL_MD_SHA224_IDX 10
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# define SSL_MD_SHA512_IDX 11
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# define SSL_MAX_DIGEST 12
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/* Bits for algorithm2 (handshake digests and other extra flags) */
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/* Bits 0-7 are handshake MAC */
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# define SSL_HANDSHAKE_MAC_MASK 0xFF
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# define SSL_HANDSHAKE_MAC_MD5_SHA1 SSL_MD_MD5_SHA1_IDX
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# define SSL_HANDSHAKE_MAC_SHA256 SSL_MD_SHA256_IDX
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# define SSL_HANDSHAKE_MAC_SHA384 SSL_MD_SHA384_IDX
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# define SSL_HANDSHAKE_MAC_GOST94 SSL_MD_GOST94_IDX
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# define SSL_HANDSHAKE_MAC_GOST12_256 SSL_MD_GOST12_256_IDX
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# define SSL_HANDSHAKE_MAC_GOST12_512 SSL_MD_GOST12_512_IDX
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# define SSL_HANDSHAKE_MAC_DEFAULT SSL_HANDSHAKE_MAC_MD5_SHA1
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/* Bits 8-15 bits are PRF */
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# define TLS1_PRF_DGST_SHIFT 8
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# define TLS1_PRF_SHA1_MD5 (SSL_MD_MD5_SHA1_IDX << TLS1_PRF_DGST_SHIFT)
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# define TLS1_PRF_SHA256 (SSL_MD_SHA256_IDX << TLS1_PRF_DGST_SHIFT)
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# define TLS1_PRF_SHA384 (SSL_MD_SHA384_IDX << TLS1_PRF_DGST_SHIFT)
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# define TLS1_PRF_GOST94 (SSL_MD_GOST94_IDX << TLS1_PRF_DGST_SHIFT)
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# define TLS1_PRF_GOST12_256 (SSL_MD_GOST12_256_IDX << TLS1_PRF_DGST_SHIFT)
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# define TLS1_PRF_GOST12_512 (SSL_MD_GOST12_512_IDX << TLS1_PRF_DGST_SHIFT)
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# define TLS1_PRF (SSL_MD_MD5_SHA1_IDX << TLS1_PRF_DGST_SHIFT)
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/*
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* Stream MAC for GOST ciphersuites from cryptopro draft (currently this also
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* goes into algorithm2)
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*/
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# define TLS1_STREAM_MAC 0x10000
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# define SSL_STRONG_MASK 0x0000001FU
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# define SSL_DEFAULT_MASK 0X00000020U
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# define SSL_STRONG_NONE 0x00000001U
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# define SSL_LOW 0x00000002U
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# define SSL_MEDIUM 0x00000004U
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# define SSL_HIGH 0x00000008U
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# define SSL_FIPS 0x00000010U
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# define SSL_NOT_DEFAULT 0x00000020U
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/* we have used 0000003f - 26 bits left to go */
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/* Flag used on OpenSSL ciphersuite ids to indicate they are for SSLv3+ */
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# define SSL3_CK_CIPHERSUITE_FLAG 0x03000000
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/* Check if an SSL structure is using DTLS */
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# define SSL_IS_DTLS(s) (s->method->ssl3_enc->enc_flags & SSL_ENC_FLAG_DTLS)
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/* Check if we are using TLSv1.3 */
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# define SSL_IS_TLS13(s) (!SSL_IS_DTLS(s) \
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&& (s)->method->version >= TLS1_3_VERSION \
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&& (s)->method->version != TLS_ANY_VERSION)
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# define SSL_TREAT_AS_TLS13(s) \
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(SSL_IS_TLS13(s) || (s)->early_data_state == SSL_EARLY_DATA_WRITING \
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|| (s)->early_data_state == SSL_EARLY_DATA_WRITE_RETRY)
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# define SSL_IS_FIRST_HANDSHAKE(S) ((s)->s3->tmp.finish_md_len == 0)
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/* See if we need explicit IV */
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# define SSL_USE_EXPLICIT_IV(s) \
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(s->method->ssl3_enc->enc_flags & SSL_ENC_FLAG_EXPLICIT_IV)
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/*
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* See if we use signature algorithms extension and signature algorithm
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* before signatures.
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*/
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# define SSL_USE_SIGALGS(s) \
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(s->method->ssl3_enc->enc_flags & SSL_ENC_FLAG_SIGALGS)
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/*
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* Allow TLS 1.2 ciphersuites: applies to DTLS 1.2 as well as TLS 1.2: may
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* apply to others in future.
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*/
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# define SSL_USE_TLS1_2_CIPHERS(s) \
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(s->method->ssl3_enc->enc_flags & SSL_ENC_FLAG_TLS1_2_CIPHERS)
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/*
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* Determine if a client can use TLS 1.2 ciphersuites: can't rely on method
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* flags because it may not be set to correct version yet.
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*/
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# define SSL_CLIENT_USE_TLS1_2_CIPHERS(s) \
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((!SSL_IS_DTLS(s) && s->client_version >= TLS1_2_VERSION) || \
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(SSL_IS_DTLS(s) && DTLS_VERSION_GE(s->client_version, DTLS1_2_VERSION)))
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/*
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* Determine if a client should send signature algorithms extension:
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* as with TLS1.2 cipher we can't rely on method flags.
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*/
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# define SSL_CLIENT_USE_SIGALGS(s) \
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SSL_CLIENT_USE_TLS1_2_CIPHERS(s)
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# define SSL_READ_ETM(s) (s->s3->flags & TLS1_FLAGS_ENCRYPT_THEN_MAC_READ)
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# define SSL_WRITE_ETM(s) (s->s3->flags & TLS1_FLAGS_ENCRYPT_THEN_MAC_WRITE)
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/* Mostly for SSLv3 */
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# define SSL_PKEY_RSA 0
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# define SSL_PKEY_RSA_PSS_SIGN 1
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# define SSL_PKEY_DSA_SIGN 2
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# define SSL_PKEY_ECC 3
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# define SSL_PKEY_GOST01 4
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# define SSL_PKEY_GOST12_256 5
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# define SSL_PKEY_GOST12_512 6
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# define SSL_PKEY_ED25519 7
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# define SSL_PKEY_NUM 8
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/*
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* Pseudo-constant. GOST cipher suites can use different certs for 1
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* SSL_CIPHER. So let's see which one we have in fact.
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*/
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# define SSL_PKEY_GOST_EC SSL_PKEY_NUM+1
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/*-
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* SSL_kRSA <- RSA_ENC
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* SSL_kDH <- DH_ENC & (RSA_ENC | RSA_SIGN | DSA_SIGN)
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* SSL_kDHE <- RSA_ENC | RSA_SIGN | DSA_SIGN
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* SSL_aRSA <- RSA_ENC | RSA_SIGN
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* SSL_aDSS <- DSA_SIGN
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*/
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/*-
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#define CERT_INVALID 0
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#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 */
|
|
const char *stdname; /* RFC 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);
|
|
int (*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, size_t len, size_t *readbytes);
|
|
int (*ssl_peek) (SSL *s, void *buf, size_t len, size_t *readbytes);
|
|
int (*ssl_write) (SSL *s, const void *buf, size_t len, size_t *written);
|
|
int (*ssl_shutdown) (SSL *s);
|
|
int (*ssl_renegotiate) (SSL *s);
|
|
int (*ssl_renegotiate_check) (SSL *s, int);
|
|
int (*ssl_read_bytes) (SSL *s, int type, int *recvd_type,
|
|
unsigned char *buf, size_t len, int peek,
|
|
size_t *readbytes);
|
|
int (*ssl_write_bytes) (SSL *s, int type, const void *buf_, size_t len,
|
|
size_t *written);
|
|
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, WPACKET *pkt,
|
|
size_t *len);
|
|
size_t (*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? */
|
|
size_t master_key_length;
|
|
|
|
/* TLSv1.3 early_secret used for external PSKs */
|
|
unsigned char early_secret[EVP_MAX_MD_SIZE];
|
|
/*
|
|
* For <=TLS1.2 this is the master_key. For TLS1.3 this is the resumption
|
|
* master secret
|
|
*/
|
|
unsigned char master_key[TLS13_MAX_RESUMPTION_MASTER_LENGTH];
|
|
/* session_id - valid? */
|
|
size_t 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
|
|
*/
|
|
size_t 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 */
|
|
CRYPTO_REF_COUNT 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;
|
|
|
|
struct {
|
|
char *hostname;
|
|
# ifndef OPENSSL_NO_EC
|
|
size_t ecpointformats_len;
|
|
unsigned char *ecpointformats; /* peer's list */
|
|
# endif /* OPENSSL_NO_EC */
|
|
size_t supportedgroups_len;
|
|
uint16_t *supportedgroups; /* peer's list */
|
|
/* RFC4507 info */
|
|
unsigned char *tick; /* Session ticket */
|
|
size_t ticklen; /* Session ticket length */
|
|
/* Session lifetime hint in seconds */
|
|
unsigned long tick_lifetime_hint;
|
|
uint32_t tick_age_add;
|
|
unsigned char *tick_nonce;
|
|
size_t tick_nonce_len;
|
|
int tick_identity;
|
|
/* Max number of bytes that can be sent as early data */
|
|
uint32_t max_early_data;
|
|
/* The ALPN protocol selected for this session */
|
|
unsigned char *alpn_selected;
|
|
size_t alpn_selected_len;
|
|
} ext;
|
|
# 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
|
|
|
|
typedef enum {
|
|
SSL_EARLY_DATA_NONE = 0,
|
|
SSL_EARLY_DATA_CONNECT_RETRY,
|
|
SSL_EARLY_DATA_CONNECTING,
|
|
SSL_EARLY_DATA_WRITE_RETRY,
|
|
SSL_EARLY_DATA_WRITING,
|
|
SSL_EARLY_DATA_UNAUTH_WRITING,
|
|
SSL_EARLY_DATA_FINISHED_WRITING,
|
|
SSL_EARLY_DATA_ACCEPT_RETRY,
|
|
SSL_EARLY_DATA_ACCEPTING,
|
|
SSL_EARLY_DATA_READ_RETRY,
|
|
SSL_EARLY_DATA_READING,
|
|
SSL_EARLY_DATA_FINISHED_READING
|
|
} SSL_EARLY_DATA_STATE;
|
|
|
|
/*
|
|
* We check that the amount of unreadable early data doesn't exceed
|
|
* max_early_data. max_early_data is given in plaintext bytes. However if it is
|
|
* unreadable then we only know the number of ciphertext bytes. We also don't
|
|
* know how much the overhead should be because it depends on the ciphersuite.
|
|
* We make a small allowance. We assume 5 records of actual data plus the end
|
|
* of early data alert record. Each record has a tag and a content type byte.
|
|
* The longest tag length we know of is EVP_GCM_TLS_TAG_LEN. We don't count the
|
|
* content of the alert record either which is 2 bytes.
|
|
*/
|
|
# define EARLY_DATA_CIPHERTEXT_OVERHEAD ((6 * (EVP_GCM_TLS_TAG_LEN + 1)) + 2)
|
|
|
|
/*
|
|
* The allowance we have between the client's calculated ticket age and our own.
|
|
* We allow for 10 seconds (units are in ms). If a ticket is presented and the
|
|
* client's age calculation is different by more than this than our own then we
|
|
* do not allow that ticket for early_data.
|
|
*/
|
|
# define TICKET_AGE_ALLOWANCE (10 * 1000)
|
|
|
|
#define MAX_COMPRESSIONS_SIZE 255
|
|
|
|
struct ssl_comp_st {
|
|
int id;
|
|
const char *name;
|
|
COMP_METHOD *method;
|
|
};
|
|
|
|
typedef struct raw_extension_st {
|
|
/* Raw packet data for the extension */
|
|
PACKET data;
|
|
/* Set to 1 if the extension is present or 0 otherwise */
|
|
int present;
|
|
/* Set to 1 if we have already parsed the extension or 0 otherwise */
|
|
int parsed;
|
|
/* The type of this extension, i.e. a TLSEXT_TYPE_* value */
|
|
unsigned int type;
|
|
/* Track what order extensions are received in (0-based). */
|
|
size_t received_order;
|
|
} RAW_EXTENSION;
|
|
|
|
typedef struct {
|
|
unsigned int isv2;
|
|
unsigned int legacy_version;
|
|
unsigned char random[SSL3_RANDOM_SIZE];
|
|
size_t session_id_len;
|
|
unsigned char session_id[SSL_MAX_SSL_SESSION_ID_LENGTH];
|
|
size_t dtls_cookie_len;
|
|
unsigned char dtls_cookie[DTLS1_COOKIE_LENGTH];
|
|
PACKET ciphersuites;
|
|
size_t compressions_len;
|
|
unsigned char compressions[MAX_COMPRESSIONS_SIZE];
|
|
PACKET extensions;
|
|
size_t pre_proc_exts_len;
|
|
RAW_EXTENSION *pre_proc_exts;
|
|
} CLIENTHELLO_MSG;
|
|
|
|
/*
|
|
* Extension index values NOTE: Any updates to these defines should be mirrored
|
|
* with equivalent updates to ext_defs in extensions.c
|
|
*/
|
|
typedef enum tlsext_index_en {
|
|
TLSEXT_IDX_renegotiate,
|
|
TLSEXT_IDX_server_name,
|
|
TLSEXT_IDX_srp,
|
|
TLSEXT_IDX_ec_point_formats,
|
|
TLSEXT_IDX_supported_groups,
|
|
TLSEXT_IDX_session_ticket,
|
|
TLSEXT_IDX_status_request,
|
|
TLSEXT_IDX_next_proto_neg,
|
|
TLSEXT_IDX_application_layer_protocol_negotiation,
|
|
TLSEXT_IDX_use_srtp,
|
|
TLSEXT_IDX_encrypt_then_mac,
|
|
TLSEXT_IDX_signed_certificate_timestamp,
|
|
TLSEXT_IDX_extended_master_secret,
|
|
TLSEXT_IDX_signature_algorithms,
|
|
TLSEXT_IDX_supported_versions,
|
|
TLSEXT_IDX_psk_kex_modes,
|
|
TLSEXT_IDX_key_share,
|
|
TLSEXT_IDX_cookie,
|
|
TLSEXT_IDX_cryptopro_bug,
|
|
TLSEXT_IDX_early_data,
|
|
TLSEXT_IDX_certificate_authorities,
|
|
TLSEXT_IDX_padding,
|
|
TLSEXT_IDX_psk,
|
|
/* Dummy index - must always be the last entry */
|
|
TLSEXT_IDX_num_builtins
|
|
} TLSEXT_INDEX;
|
|
|
|
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.
|
|
*/
|
|
size_t 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;
|
|
|
|
CRYPTO_REF_COUNT 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 certificate_authorities extension for TLS 1.3
|
|
* (ClientHello and CertificateRequest) or just client cert requests for
|
|
* earlier versions.
|
|
*/
|
|
STACK_OF(X509_NAME) *ca_names;
|
|
|
|
/*
|
|
* 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;
|
|
size_t 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;
|
|
size_t 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?
|
|
*/
|
|
size_t 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.
|
|
*/
|
|
size_t max_send_fragment;
|
|
|
|
/* Up to how many pipelines should we use? If 0 then 1 is assumed */
|
|
size_t 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
|
|
|
|
/* ClientHello callback. Mostly for extensions, but not entirely. */
|
|
SSL_client_hello_cb_fn client_hello_cb;
|
|
void *client_hello_cb_arg;
|
|
|
|
/* TLS extensions. */
|
|
struct {
|
|
/* TLS extensions servername callback */
|
|
int (*servername_cb) (SSL *, int *, void *);
|
|
void *servername_arg;
|
|
/* RFC 4507 session ticket keys */
|
|
unsigned char tick_key_name[TLSEXT_KEYNAME_LENGTH];
|
|
unsigned char tick_hmac_key[32];
|
|
unsigned char tick_aes_key[32];
|
|
/* Callback to support customisation of ticket key setting */
|
|
int (*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 (*status_cb) (SSL *ssl, void *arg);
|
|
void *status_arg;
|
|
/* ext status type used for CSR extension (OCSP Stapling) */
|
|
int status_type;
|
|
|
|
# ifndef OPENSSL_NO_EC
|
|
/* EC extension values inherited by SSL structure */
|
|
size_t ecpointformats_len;
|
|
unsigned char *ecpointformats;
|
|
size_t supportedgroups_len;
|
|
uint16_t *supportedgroups;
|
|
# endif /* OPENSSL_NO_EC */
|
|
|
|
/*
|
|
* 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;
|
|
size_t alpn_len;
|
|
|
|
# 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.
|
|
*/
|
|
SSL_CTX_npn_advertised_cb_func npn_advertised_cb;
|
|
void *npn_advertised_cb_arg;
|
|
/*
|
|
* For a client, this contains a callback function that selects the next
|
|
* protocol from the list provided by the server.
|
|
*/
|
|
SSL_CTX_npn_select_cb_func npn_select_cb;
|
|
void *npn_select_cb_arg;
|
|
# endif
|
|
} ext;
|
|
|
|
# ifndef OPENSSL_NO_PSK
|
|
SSL_psk_client_cb_func psk_client_callback;
|
|
SSL_psk_server_cb_func psk_server_callback;
|
|
# endif
|
|
SSL_psk_find_session_cb_func psk_find_session_cb;
|
|
SSL_psk_use_session_cb_func psk_use_session_cb;
|
|
|
|
# ifndef OPENSSL_NO_SRP
|
|
SRP_CTX srp_ctx; /* ctx for SRP authentication */
|
|
# endif
|
|
|
|
/* 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);
|
|
|
|
CRYPTO_RWLOCK *lock;
|
|
|
|
/*
|
|
* Callback for logging key material for use with debugging tools like
|
|
* Wireshark. The callback should log `line` followed by a newline.
|
|
*/
|
|
SSL_CTX_keylog_cb_func keylog_callback;
|
|
|
|
/* The maximum number of bytes that can be sent as early data */
|
|
uint32_t max_early_data;
|
|
|
|
/* TLS1.3 padding callback */
|
|
size_t (*record_padding_cb)(SSL *s, int type, size_t len, void *arg);
|
|
void *record_padding_arg;
|
|
size_t block_padding;
|
|
};
|
|
|
|
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;
|
|
SSL_EARLY_DATA_STATE early_data_state;
|
|
BUF_MEM *init_buf; /* buffer used during init */
|
|
void *init_msg; /* pointer to handshake message body, set by
|
|
* ssl3_get_message() */
|
|
size_t init_num; /* amount read/written */
|
|
size_t 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;
|
|
/*
|
|
* The TLS1.3 secrets. The resumption master secret is stored in the
|
|
* session.
|
|
*/
|
|
unsigned char early_secret[EVP_MAX_MD_SIZE];
|
|
unsigned char handshake_secret[EVP_MAX_MD_SIZE];
|
|
unsigned char master_secret[EVP_MAX_MD_SIZE];
|
|
unsigned char client_finished_secret[EVP_MAX_MD_SIZE];
|
|
unsigned char server_finished_secret[EVP_MAX_MD_SIZE];
|
|
unsigned char server_finished_hash[EVP_MAX_MD_SIZE];
|
|
unsigned char handshake_traffic_hash[EVP_MAX_MD_SIZE];
|
|
unsigned char client_app_traffic_secret[EVP_MAX_MD_SIZE];
|
|
unsigned char server_app_traffic_secret[EVP_MAX_MD_SIZE];
|
|
unsigned char exporter_master_secret[EVP_MAX_MD_SIZE];
|
|
EVP_CIPHER_CTX *enc_read_ctx; /* cryptographic state */
|
|
unsigned char read_iv[EVP_MAX_IV_LENGTH]; /* TLSv1.3 static read IV */
|
|
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 */
|
|
unsigned char write_iv[EVP_MAX_IV_LENGTH]; /* TLSv1.3 static write IV */
|
|
EVP_MD_CTX *write_hash; /* used for mac generation */
|
|
/* Count of how many KeyUpdate messages we have received */
|
|
unsigned int key_update_count;
|
|
/* session info */
|
|
/* client cert? */
|
|
/* This is used to hold the server certificate used */
|
|
struct cert_st /* CERT */ *cert;
|
|
|
|
/*
|
|
* The hash of all messages prior to the CertificateVerify, and the length
|
|
* of that hash.
|
|
*/
|
|
unsigned char cert_verify_hash[EVP_MAX_MD_SIZE];
|
|
size_t cert_verify_hash_len;
|
|
|
|
/* Flag to indicate whether we should send a HelloRetryRequest or not */
|
|
int hello_retry_request;
|
|
|
|
/*
|
|
* the session_id_context is used to ensure sessions are only reused in
|
|
* the appropriate context
|
|
*/
|
|
size_t 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;
|
|
/* TLSv1.3 PSK session */
|
|
SSL_SESSION *psksession;
|
|
unsigned char *psksession_id;
|
|
size_t psksession_id_len;
|
|
/* 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
|
|
SSL_psk_client_cb_func psk_client_callback;
|
|
SSL_psk_server_cb_func psk_server_callback;
|
|
# endif
|
|
SSL_psk_find_session_cb_func psk_find_session_cb;
|
|
SSL_psk_use_session_cb_func psk_use_session_cb;
|
|
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) *ca_names;
|
|
CRYPTO_REF_COUNT references;
|
|
/* protocol behaviour */
|
|
uint32_t options;
|
|
/* API behaviour */
|
|
uint32_t mode;
|
|
int min_proto_version;
|
|
int max_proto_version;
|
|
size_t max_cert_list;
|
|
int first_packet;
|
|
/*
|
|
* What was passed in ClientHello.legacy_version. Used for RSA pre-master
|
|
* secret and SSLv3/TLS (<=1.2) rollback check
|
|
*/
|
|
int client_version;
|
|
/*
|
|
* If we're using more than one pipeline how should we divide the data
|
|
* up between the pipes?
|
|
*/
|
|
size_t 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.
|
|
*/
|
|
size_t max_send_fragment;
|
|
/* Up to how many pipelines should we use? If 0 then 1 is assumed */
|
|
size_t max_pipelines;
|
|
|
|
struct {
|
|
/* Built-in extension flags */
|
|
uint8_t extflags[TLSEXT_IDX_num_builtins];
|
|
/* TLS extension debug callback */
|
|
void (*debug_cb)(SSL *s, int client_server, int type,
|
|
const unsigned char *data, int len, void *arg);
|
|
void *debug_arg;
|
|
char *hostname;
|
|
/* certificate status request info */
|
|
/* Status type or -1 if no status type */
|
|
int status_type;
|
|
/* Raw extension data, if seen */
|
|
unsigned char *scts;
|
|
/* Length of raw extension data, if seen */
|
|
uint16_t scts_len;
|
|
/* Expect OCSP CertificateStatus message */
|
|
int status_expected;
|
|
|
|
struct {
|
|
/* OCSP status request only */
|
|
STACK_OF(OCSP_RESPID) *ids;
|
|
X509_EXTENSIONS *exts;
|
|
/* OCSP response received or to be sent */
|
|
unsigned char *resp;
|
|
size_t resp_len;
|
|
} ocsp;
|
|
|
|
/* RFC4507 session ticket expected to be received or sent */
|
|
int ticket_expected;
|
|
# ifndef OPENSSL_NO_EC
|
|
size_t ecpointformats_len;
|
|
/* our list */
|
|
unsigned char *ecpointformats;
|
|
# endif /* OPENSSL_NO_EC */
|
|
size_t supportedgroups_len;
|
|
/* our list */
|
|
uint16_t *supportedgroups;
|
|
/* TLS Session Ticket extension override */
|
|
TLS_SESSION_TICKET_EXT *session_ticket;
|
|
/* TLS Session Ticket extension callback */
|
|
tls_session_ticket_ext_cb_fn session_ticket_cb;
|
|
void *session_ticket_cb_arg;
|
|
/* TLS pre-shared secret session resumption */
|
|
tls_session_secret_cb_fn session_secret_cb;
|
|
void *session_secret_cb_arg;
|
|
/*
|
|
* For a client, this contains the list of supported protocols in wire
|
|
* format.
|
|
*/
|
|
unsigned char *alpn;
|
|
size_t alpn_len;
|
|
/*
|
|
* 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 *npn;
|
|
size_t npn_len;
|
|
|
|
/* The available PSK key exchange modes */
|
|
int psk_kex_mode;
|
|
|
|
/* Set to one if we have negotiated ETM */
|
|
int use_etm;
|
|
|
|
/* Are we expecting to receive early data? */
|
|
int early_data;
|
|
/* Is the session suitable for early data? */
|
|
int early_data_ok;
|
|
|
|
/* May be sent by a server in HRR. Must be echoed back in ClientHello */
|
|
unsigned char *tls13_cookie;
|
|
size_t tls13_cookie_len;
|
|
} ext;
|
|
|
|
/*
|
|
* Parsed form of the ClientHello, kept around across client_hello_cb
|
|
* calls.
|
|
*/
|
|
CLIENTHELLO_MSG *clienthello;
|
|
|
|
/*-
|
|
* 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;
|
|
# 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 that is 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;
|
|
/* Have we attempted to find/parse SCTs yet? */
|
|
int scts_parsed;
|
|
# endif
|
|
SSL_CTX *session_ctx; /* initial ctx, used to store sessions */
|
|
/* What we'll do */
|
|
STACK_OF(SRTP_PROTECTION_PROFILE) *srtp_profiles;
|
|
/* What's been chosen */
|
|
SRTP_PROTECTION_PROFILE *srtp_profile;
|
|
/*-
|
|
* 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;
|
|
/* If sending a KeyUpdate is pending */
|
|
int key_update;
|
|
# 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;
|
|
size_t asyncrw;
|
|
|
|
/* The maximum number of plaintext bytes that can be sent as early data */
|
|
uint32_t max_early_data;
|
|
/*
|
|
* The number of bytes of early data received so far. If we accepted early
|
|
* data then this is a count of the plaintext bytes. If we rejected it then
|
|
* this is a count of the ciphertext bytes.
|
|
*/
|
|
uint32_t early_data_count;
|
|
|
|
/* TLS1.3 padding callback */
|
|
size_t (*record_padding_cb)(SSL *s, int type, size_t len, void *arg);
|
|
void *record_padding_arg;
|
|
size_t block_padding;
|
|
|
|
CRYPTO_RWLOCK *lock;
|
|
RAND_DRBG *drbg;
|
|
};
|
|
|
|
/*
|
|
* Structure containing table entry of values associated with the signature
|
|
* algorithms (signature scheme) extension
|
|
*/
|
|
typedef struct sigalg_lookup_st {
|
|
/* TLS 1.3 signature scheme name */
|
|
const char *name;
|
|
/* Raw value used in extension */
|
|
uint16_t sigalg;
|
|
/* NID of hash algorithm or NID_undef if no hash */
|
|
int hash;
|
|
/* Index of hash algorithm or -1 if no hash algorithm */
|
|
int hash_idx;
|
|
/* NID of signature algorithm */
|
|
int sig;
|
|
/* Index of signature algorithm */
|
|
int sig_idx;
|
|
/* Combined hash and signature NID, if any */
|
|
int sigandhash;
|
|
/* Required public key curve (ECDSA only) */
|
|
int curve;
|
|
} SIGALG_LOOKUP;
|
|
|
|
typedef struct tls_group_info_st {
|
|
int nid; /* Curve NID */
|
|
int secbits; /* Bits of security (from SP800-57) */
|
|
uint16_t flags; /* Flags: currently just group type */
|
|
} TLS_GROUP_INFO;
|
|
|
|
/* flags values */
|
|
# define TLS_CURVE_TYPE 0x3 /* Mask for group type */
|
|
# define TLS_CURVE_PRIME 0x0
|
|
# define TLS_CURVE_CHAR2 0x1
|
|
# define TLS_CURVE_CUSTOM 0x2
|
|
|
|
typedef struct cert_pkey_st CERT_PKEY;
|
|
|
|
/*
|
|
* Structure containing table entry of certificate info corresponding to
|
|
* CERT_PKEY entries
|
|
*/
|
|
typedef struct {
|
|
int nid; /* NID of pubic key algorithm */
|
|
uint32_t amask; /* authmask corresponding to key type */
|
|
} SSL_CERT_LOOKUP;
|
|
|
|
typedef struct ssl3_state_st {
|
|
long flags;
|
|
size_t read_mac_secret_size;
|
|
unsigned char read_mac_secret[EVP_MAX_MD_SIZE];
|
|
size_t 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];
|
|
size_t finish_md_len;
|
|
unsigned char peer_finish_md[EVP_MAX_MD_SIZE * 2];
|
|
size_t peer_finish_md_len;
|
|
size_t 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;
|
|
/* Certificate types in certificate request message. */
|
|
uint8_t *ctype;
|
|
size_t ctype_len;
|
|
/* Certificate authorities list peer sent */
|
|
STACK_OF(X509_NAME) *peer_ca_names;
|
|
size_t key_block_length;
|
|
unsigned char *key_block;
|
|
const EVP_CIPHER *new_sym_enc;
|
|
const EVP_MD *new_hash;
|
|
int new_mac_pkey_type;
|
|
size_t 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 algorithm we actually use */
|
|
const SIGALG_LOOKUP *sigalg;
|
|
/* Pointer to certificate we use */
|
|
CERT_PKEY *cert;
|
|
/*
|
|
* signature algorithms peer reports: e.g. supported signature
|
|
* algorithms extension for server or as part of a certificate
|
|
* request for client.
|
|
*/
|
|
uint16_t *peer_sigalgs;
|
|
/* Size of above array */
|
|
size_t peer_sigalgslen;
|
|
/* Sigalg peer actualy uses */
|
|
const SIGALG_LOOKUP *peer_sigalg;
|
|
/*
|
|
* 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];
|
|
size_t previous_client_finished_len;
|
|
unsigned char previous_server_finished[EVP_MAX_MD_SIZE];
|
|
size_t 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 npn_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)
|
|
/* The group_id for the DH/ECDH key */
|
|
uint16_t group_id;
|
|
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;
|
|
size_t msg_len;
|
|
unsigned short seq;
|
|
size_t frag_off;
|
|
size_t 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);
|
|
size_t pqueue_size(pqueue *pq);
|
|
|
|
typedef struct dtls1_state_st {
|
|
unsigned char cookie[DTLS1_COOKIE_LENGTH];
|
|
size_t 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;
|
|
size_t link_mtu; /* max on-the-wire DTLS packet size */
|
|
size_t 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 sent will timeout
|
|
*/
|
|
struct timeval next_timeout;
|
|
/* Timeout duration */
|
|
unsigned int timeout_duration_us;
|
|
|
|
unsigned int retransmitting;
|
|
# ifndef OPENSSL_NO_SCTP
|
|
int shutdown_received;
|
|
# endif
|
|
|
|
DTLS_timer_cb timer_cb;
|
|
|
|
} 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 */
|
|
|
|
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;
|
|
};
|
|
/* 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 enum {
|
|
ENDPOINT_CLIENT = 0,
|
|
ENDPOINT_SERVER,
|
|
ENDPOINT_BOTH
|
|
} ENDPOINT;
|
|
|
|
|
|
typedef struct {
|
|
unsigned short ext_type;
|
|
ENDPOINT role;
|
|
/* The context which this extension applies to */
|
|
unsigned int context;
|
|
/*
|
|
* Per-connection flags relating to this extension type: not used if
|
|
* part of an SSL_CTX structure.
|
|
*/
|
|
uint32_t ext_flags;
|
|
SSL_custom_ext_add_cb_ex add_cb;
|
|
SSL_custom_ext_free_cb_ex free_cb;
|
|
void *add_arg;
|
|
SSL_custom_ext_parse_cb_ex 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];
|
|
/* Custom certificate types sent in certificate request message. */
|
|
uint8_t *ctype;
|
|
size_t ctype_len;
|
|
/*
|
|
* supported 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.
|
|
*/
|
|
uint16_t *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 certificate request for TLS 1.2. On a client this
|
|
* represents the signature algorithms we are willing to use for client
|
|
* authentication.
|
|
*/
|
|
uint16_t *client_sigalgs;
|
|
/* Size of above array */
|
|
size_t client_sigalgslen;
|
|
/*
|
|
* Signature algorithms shared by client and server: cached because these
|
|
* are used most often.
|
|
*/
|
|
const SIGALG_LOOKUP **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 extensions */
|
|
custom_ext_methods custext;
|
|
/* 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
|
|
CRYPTO_REF_COUNT references; /* >1 only if SSL_copy_session_id is used */
|
|
CRYPTO_RWLOCK *lock;
|
|
} CERT;
|
|
|
|
# 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 *, size_t, int);
|
|
int (*mac) (SSL *, SSL3_RECORD *, unsigned char *, int);
|
|
int (*setup_key_block) (SSL *);
|
|
int (*generate_master_secret) (SSL *, unsigned char *, unsigned char *,
|
|
size_t, size_t *);
|
|
int (*change_cipher_state) (SSL *, int);
|
|
size_t (*final_finish_mac) (SSL *, const char *, size_t, unsigned char *);
|
|
const char *client_finished_label;
|
|
size_t client_finished_label_len;
|
|
const char *server_finished_label;
|
|
size_t 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;
|
|
/* Set the handshake header */
|
|
int (*set_handshake_header) (SSL *s, WPACKET *pkt, int type);
|
|
/* Close construction of the handshake message */
|
|
int (*close_construct_packet) (SSL *s, WPACKET *pkt, int htype);
|
|
/* Write out handshake message */
|
|
int (*do_write) (SSL *s);
|
|
} SSL3_ENC_METHOD;
|
|
|
|
# define ssl_set_handshake_header(s, pkt, htype) \
|
|
s->method->ssl3_enc->set_handshake_header((s), (pkt), (htype))
|
|
# define ssl_close_construct_packet(s, pkt, htype) \
|
|
s->method->ssl3_enc->close_construct_packet((s), (pkt), (htype))
|
|
# 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
|
|
|
|
typedef enum downgrade_en {
|
|
DOWNGRADE_NONE,
|
|
DOWNGRADE_TO_1_2,
|
|
DOWNGRADE_TO_1_1
|
|
} DOWNGRADE;
|
|
|
|
/*
|
|
* Dummy status type for the status_type extension. Indicates no status type
|
|
* set
|
|
*/
|
|
#define TLSEXT_STATUSTYPE_nothing -1
|
|
|
|
/* Sigalgs values */
|
|
#define TLSEXT_SIGALG_ecdsa_secp256r1_sha256 0x0403
|
|
#define TLSEXT_SIGALG_ecdsa_secp384r1_sha384 0x0503
|
|
#define TLSEXT_SIGALG_ecdsa_secp521r1_sha512 0x0603
|
|
#define TLSEXT_SIGALG_ecdsa_sha224 0x0303
|
|
#define TLSEXT_SIGALG_ecdsa_sha1 0x0203
|
|
#define TLSEXT_SIGALG_rsa_pss_sha256 0x0804
|
|
#define TLSEXT_SIGALG_rsa_pss_sha384 0x0805
|
|
#define TLSEXT_SIGALG_rsa_pss_sha512 0x0806
|
|
#define TLSEXT_SIGALG_rsa_pkcs1_sha256 0x0401
|
|
#define TLSEXT_SIGALG_rsa_pkcs1_sha384 0x0501
|
|
#define TLSEXT_SIGALG_rsa_pkcs1_sha512 0x0601
|
|
#define TLSEXT_SIGALG_rsa_pkcs1_sha224 0x0301
|
|
#define TLSEXT_SIGALG_rsa_pkcs1_sha1 0x0201
|
|
#define TLSEXT_SIGALG_dsa_sha256 0x0402
|
|
#define TLSEXT_SIGALG_dsa_sha384 0x0502
|
|
#define TLSEXT_SIGALG_dsa_sha512 0x0602
|
|
#define TLSEXT_SIGALG_dsa_sha224 0x0302
|
|
#define TLSEXT_SIGALG_dsa_sha1 0x0202
|
|
#define TLSEXT_SIGALG_gostr34102012_256_gostr34112012_256 0xeeee
|
|
#define TLSEXT_SIGALG_gostr34102012_512_gostr34112012_512 0xefef
|
|
#define TLSEXT_SIGALG_gostr34102001_gostr3411 0xeded
|
|
|
|
#define TLSEXT_SIGALG_ed25519 0x0807
|
|
|
|
/* Known PSK key exchange modes */
|
|
#define TLSEXT_KEX_MODE_KE 0x00
|
|
#define TLSEXT_KEX_MODE_KE_DHE 0x01
|
|
|
|
/*
|
|
* Internal representations of key exchange modes
|
|
*/
|
|
#define TLSEXT_KEX_MODE_FLAG_NONE 0
|
|
#define TLSEXT_KEX_MODE_FLAG_KE 1
|
|
#define TLSEXT_KEX_MODE_FLAG_KE_DHE 2
|
|
|
|
/* An invalid index into the TLSv1.3 PSK identities */
|
|
#define TLSEXT_PSK_BAD_IDENTITY -1
|
|
|
|
#define SSL_USE_PSS(s) (s->s3->tmp.peer_sigalg != NULL && \
|
|
s->s3->tmp.peer_sigalg->sig == EVP_PKEY_RSA_PSS)
|
|
|
|
/* A dummy signature value not valid for TLSv1.2 signature algs */
|
|
#define TLSEXT_signature_rsa_pss 0x0101
|
|
|
|
/* TLSv1.3 downgrade protection sentinel values */
|
|
extern const unsigned char tls11downgrade[8];
|
|
extern const unsigned char tls12downgrade[8];
|
|
|
|
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 *tlsv1_3_method(void);
|
|
__owur const SSL_METHOD *tlsv1_3_server_method(void);
|
|
__owur const SSL_METHOD *tlsv1_3_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 *dtls_bad_ver_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 TLSv1_3_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);
|
|
};
|
|
|
|
const char *ssl_protocol_to_string(int version);
|
|
|
|
/* Returns true if certificate and private key for 'idx' are present */
|
|
static ossl_inline int ssl_has_cert(const SSL *s, int idx)
|
|
{
|
|
if (idx < 0 || idx >= SSL_PKEY_NUM)
|
|
return 0;
|
|
return s->cert->pkeys[idx].x509 != NULL
|
|
&& s->cert->pkeys[idx].privatekey != NULL;
|
|
}
|
|
|
|
static ossl_inline void tls1_get_peer_groups(SSL *s, const uint16_t **pgroups,
|
|
size_t *pgroupslen)
|
|
{
|
|
*pgroups = s->session->ext.supportedgroups;
|
|
*pgroupslen = s->session->ext.supportedgroups_len;
|
|
}
|
|
|
|
# ifndef OPENSSL_UNIT_TEST
|
|
|
|
__owur int ssl_read_internal(SSL *s, void *buf, size_t num, size_t *readbytes);
|
|
__owur int ssl_write_internal(SSL *s, const void *buf, size_t num, size_t *written);
|
|
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_generate_session_id(SSL *s, SSL_SESSION *ss);
|
|
__owur int ssl_get_new_session(SSL *s, int session);
|
|
__owur int ssl_get_prev_session(SSL *s, CLIENTHELLO_MSG *hello, int *al);
|
|
__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);
|
|
__owur int ssl_cache_cipherlist(SSL *s, PACKET *cipher_suites,
|
|
int sslv2format, int *al);
|
|
__owur int bytes_to_cipher_list(SSL *s, PACKET *cipher_suites,
|
|
STACK_OF(SSL_CIPHER) **skp,
|
|
STACK_OF(SSL_CIPHER) **scsvs, int sslv2format,
|
|
int *al);
|
|
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,
|
|
size_t *mac_secret_size, SSL_COMP **comp,
|
|
int use_etm);
|
|
__owur int ssl_cipher_get_overhead(const SSL_CIPHER *c, size_t *mac_overhead,
|
|
size_t *int_overhead, size_t *blocksize,
|
|
size_t *ext_overhead);
|
|
__owur int ssl_cert_is_disabled(size_t idx);
|
|
__owur const SSL_CIPHER *ssl_get_cipher_by_char(SSL *ssl,
|
|
const unsigned char *ptr,
|
|
int all);
|
|
__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);
|
|
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_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_randbytes(SSL *s, unsigned char *buf, size_t num);
|
|
__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);
|
|
|
|
__owur const SSL_CERT_LOOKUP *ssl_cert_lookup_by_pkey(const EVP_PKEY *pk,
|
|
size_t *pidx);
|
|
__owur const SSL_CERT_LOOKUP *ssl_cert_lookup_by_idx(size_t idx);
|
|
|
|
int ssl_undefined_function(SSL *s);
|
|
__owur int ssl_undefined_void_function(void);
|
|
__owur int ssl_undefined_const_function(const SSL *s);
|
|
__owur int ssl_get_server_cert_serverinfo(SSL *s,
|
|
const unsigned char **serverinfo,
|
|
size_t *serverinfo_length);
|
|
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);
|
|
int ssl_load_ciphers(void);
|
|
__owur int ssl_fill_hello_random(SSL *s, int server, unsigned char *field,
|
|
size_t len, DOWNGRADE dgrd);
|
|
__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);
|
|
__owur int ssl_derive(SSL *s, EVP_PKEY *privkey, EVP_PKEY *pubkey,
|
|
int genmaster);
|
|
__owur EVP_PKEY *ssl_dh_to_pkey(DH *dh);
|
|
|
|
__owur const SSL_CIPHER *ssl3_get_cipher_by_id(uint32_t id);
|
|
__owur const SSL_CIPHER *ssl3_get_cipher_by_std_name(const char *stdname);
|
|
__owur const SSL_CIPHER *ssl3_get_cipher_by_char(const unsigned char *p);
|
|
__owur int ssl3_put_cipher_by_char(const SSL_CIPHER *c, WPACKET *pkt,
|
|
size_t *len);
|
|
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, size_t len,
|
|
size_t *secret_size);
|
|
__owur int ssl3_get_req_cert_type(SSL *s, WPACKET *pkt);
|
|
__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, int initok);
|
|
__owur int ssl3_dispatch_alert(SSL *s);
|
|
__owur size_t ssl3_final_finish_mac(SSL *s, const char *sender, size_t slen,
|
|
unsigned char *p);
|
|
__owur int ssl3_finish_mac(SSL *s, const unsigned char *buf, size_t len);
|
|
void ssl3_free_digest_list(SSL *s);
|
|
__owur unsigned long ssl3_output_cert_chain(SSL *s, WPACKET *pkt,
|
|
CERT_PKEY *cpk, int *al);
|
|
__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, size_t len, size_t *readbytes);
|
|
__owur int ssl3_peek(SSL *s, void *buf, size_t len, size_t *readbytes);
|
|
__owur int ssl3_write(SSL *s, const void *buf, size_t len, size_t *written);
|
|
__owur int ssl3_shutdown(SSL *s);
|
|
int 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, WPACKET *pkt, int htype);
|
|
__owur int tls_close_construct_packet(SSL *s, WPACKET *pkt, int htype);
|
|
__owur int tls_setup_handshake(SSL *s);
|
|
__owur int dtls1_set_handshake_header(SSL *s, WPACKET *pkt, int htype);
|
|
__owur int dtls1_close_construct_packet(SSL *s, WPACKET *pkt, int htype);
|
|
__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, CLIENTHELLO_MSG *hello,
|
|
DOWNGRADE *dgrd);
|
|
__owur int ssl_choose_client_version(SSL *s, int version, int checkdgrd,
|
|
int *al);
|
|
int ssl_get_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,
|
|
size_t len,
|
|
size_t frag_off, size_t frag_len);
|
|
|
|
int dtls1_write_app_data_bytes(SSL *s, int type, const void *buf_, size_t len,
|
|
size_t *written);
|
|
|
|
__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_received_buffer(SSL *s);
|
|
void dtls1_clear_sent_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 int dtls_raw_hello_verify_request(WPACKET *pkt, unsigned char *cookie,
|
|
size_t cookie_len);
|
|
__owur size_t 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);
|
|
int tls1_clear(SSL *s);
|
|
|
|
__owur int dtls1_new(SSL *s);
|
|
void dtls1_free(SSL *s);
|
|
int 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);
|
|
int 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 size_t tls1_final_finish_mac(SSL *s, const char *str, size_t slen,
|
|
unsigned char *p);
|
|
__owur int tls1_generate_master_secret(SSL *s, unsigned char *out,
|
|
unsigned char *p, size_t len,
|
|
size_t *secret_size);
|
|
__owur int tls13_setup_key_block(SSL *s);
|
|
__owur size_t tls13_final_finish_mac(SSL *s, const char *str, size_t slen,
|
|
unsigned char *p);
|
|
__owur int tls13_change_cipher_state(SSL *s, int which);
|
|
__owur int tls13_update_key(SSL *s, int send);
|
|
__owur int tls13_hkdf_expand(SSL *s, const EVP_MD *md,
|
|
const unsigned char *secret,
|
|
const unsigned char *label, size_t labellen,
|
|
const unsigned char *data, size_t datalen,
|
|
unsigned char *out, size_t outlen);
|
|
__owur int tls13_derive_key(SSL *s, const EVP_MD *md,
|
|
const unsigned char *secret, unsigned char *key,
|
|
size_t keylen);
|
|
__owur int tls13_derive_iv(SSL *s, const EVP_MD *md,
|
|
const unsigned char *secret, unsigned char *iv,
|
|
size_t ivlen);
|
|
__owur int tls13_derive_finishedkey(SSL *s, const EVP_MD *md,
|
|
const unsigned char *secret,
|
|
unsigned char *fin, size_t finlen);
|
|
int tls13_generate_secret(SSL *s, const EVP_MD *md,
|
|
const unsigned char *prevsecret,
|
|
const unsigned char *insecret,
|
|
size_t insecretlen,
|
|
unsigned char *outsecret);
|
|
__owur int tls13_generate_handshake_secret(SSL *s,
|
|
const unsigned char *insecret,
|
|
size_t insecretlen);
|
|
__owur int tls13_generate_master_secret(SSL *s, unsigned char *out,
|
|
unsigned char *prev, size_t prevlen,
|
|
size_t *secret_size);
|
|
__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 tls13_export_keying_material(SSL *s, unsigned char *out, size_t olen,
|
|
const char *label, size_t llen,
|
|
const unsigned char *context,
|
|
size_t contextlen, int use_context);
|
|
__owur int tls1_alert_code(int code);
|
|
__owur int tls13_alert_code(int code);
|
|
__owur int ssl3_alert_code(int code);
|
|
|
|
# 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 const TLS_GROUP_INFO *tls1_group_id_lookup(uint16_t curve_id);
|
|
__owur int tls1_check_group_id(SSL *s, uint16_t group_id);
|
|
__owur uint16_t tls1_shared_group(SSL *s, int nmatch);
|
|
__owur int tls1_set_groups(uint16_t **pext, size_t *pextlen,
|
|
int *curves, size_t ncurves);
|
|
__owur int tls1_set_groups_list(uint16_t **pext, size_t *pextlen,
|
|
const char *str);
|
|
void tls1_get_formatlist(SSL *s, const unsigned char **pformats,
|
|
size_t *num_formats);
|
|
__owur int tls1_check_ec_tmp_key(SSL *s, unsigned long id);
|
|
__owur EVP_PKEY *ssl_generate_pkey_group(uint16_t id);
|
|
__owur EVP_PKEY *ssl_generate_param_group(uint16_t id);
|
|
# endif /* OPENSSL_NO_EC */
|
|
|
|
__owur int tls_curve_allowed(SSL *s, uint16_t curve, int op);
|
|
void tls1_get_supported_groups(SSL *s, const uint16_t **pgroups,
|
|
size_t *pgroupslen);
|
|
|
|
__owur int tls1_set_server_sigalgs(SSL *s);
|
|
|
|
/* Return codes for tls_get_ticket_from_client() and tls_decrypt_ticket() */
|
|
typedef enum ticket_en {
|
|
/* fatal error, malloc failure */
|
|
TICKET_FATAL_ERR_MALLOC,
|
|
/* fatal error, either from parsing or decrypting the ticket */
|
|
TICKET_FATAL_ERR_OTHER,
|
|
/* No ticket present */
|
|
TICKET_NONE,
|
|
/* Empty ticket present */
|
|
TICKET_EMPTY,
|
|
/* the ticket couldn't be decrypted */
|
|
TICKET_NO_DECRYPT,
|
|
/* a ticket was successfully decrypted */
|
|
TICKET_SUCCESS,
|
|
/* same as above but the ticket needs to be renewed */
|
|
TICKET_SUCCESS_RENEW
|
|
} TICKET_RETURN;
|
|
|
|
__owur TICKET_RETURN tls_get_ticket_from_client(SSL *s, CLIENTHELLO_MSG *hello,
|
|
SSL_SESSION **ret);
|
|
__owur TICKET_RETURN tls_decrypt_ticket(SSL *s, const unsigned char *etick,
|
|
size_t eticklen,
|
|
const unsigned char *sess_id,
|
|
size_t sesslen, SSL_SESSION **psess);
|
|
|
|
__owur int tls_use_ticket(SSL *s);
|
|
|
|
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);
|
|
|
|
int tls_choose_sigalg(SSL *s, int *al);
|
|
|
|
__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 long ssl_get_algorithm2(SSL *s);
|
|
__owur int tls12_copy_sigalgs(SSL *s, WPACKET *pkt,
|
|
const uint16_t *psig, size_t psiglen);
|
|
__owur int tls1_save_u16(PACKET *pkt, uint16_t **pdest, size_t *pdestlen);
|
|
__owur int tls1_save_sigalgs(SSL *s, PACKET *pkt);
|
|
__owur int tls1_process_sigalgs(SSL *s);
|
|
__owur int tls1_set_peer_legacy_sigalg(SSL *s, const EVP_PKEY *pkey);
|
|
__owur int tls1_lookup_md(const SIGALG_LOOKUP *lu, const EVP_MD **pmd);
|
|
__owur size_t tls12_get_psigalgs(SSL *s, int sent, const uint16_t **psigs);
|
|
__owur int tls12_check_peer_sigalg(SSL *s, uint16_t, EVP_PKEY *pkey);
|
|
void ssl_set_client_disabled(SSL *s);
|
|
__owur int ssl_cipher_disabled(SSL *s, const SSL_CIPHER *c, int op, int echde);
|
|
|
|
__owur int ssl_handshake_hash(SSL *s, unsigned char *out, size_t outlen,
|
|
size_t *hashlen);
|
|
__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);
|
|
|
|
/*
|
|
* ssl_log_rsa_client_key_exchange logs |premaster| to the SSL_CTX associated
|
|
* with |ssl|, if logging is enabled. It returns one on success and zero on
|
|
* failure. The entry is identified by the first 8 bytes of
|
|
* |encrypted_premaster|.
|
|
*/
|
|
__owur int ssl_log_rsa_client_key_exchange(SSL *ssl,
|
|
const uint8_t *encrypted_premaster,
|
|
size_t encrypted_premaster_len,
|
|
const uint8_t *premaster,
|
|
size_t premaster_len);
|
|
|
|
/*
|
|
* ssl_log_secret logs |secret| to the SSL_CTX associated with |ssl|, if
|
|
* logging is available. It returns one on success and zero on failure. It tags
|
|
* the entry with |label|.
|
|
*/
|
|
__owur int ssl_log_secret(SSL *ssl, const char *label,
|
|
const uint8_t *secret, size_t secret_len);
|
|
|
|
#define MASTER_SECRET_LABEL "CLIENT_RANDOM"
|
|
#define CLIENT_EARLY_LABEL "CLIENT_EARLY_TRAFFIC_SECRET"
|
|
#define CLIENT_HANDSHAKE_LABEL "CLIENT_HANDSHAKE_TRAFFIC_SECRET"
|
|
#define SERVER_HANDSHAKE_LABEL "SERVER_HANDSHAKE_TRAFFIC_SECRET"
|
|
#define CLIENT_APPLICATION_LABEL "CLIENT_TRAFFIC_SECRET_0"
|
|
#define SERVER_APPLICATION_LABEL "SERVER_TRAFFIC_SECRET_0"
|
|
|
|
/* 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,
|
|
size_t mac_secret_length, char is_sslv3);
|
|
|
|
__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);
|
|
|
|
/* statem/extensions_cust.c */
|
|
|
|
custom_ext_method *custom_ext_find(const custom_ext_methods *exts,
|
|
ENDPOINT role, unsigned int ext_type,
|
|
size_t *idx);
|
|
|
|
void custom_ext_init(custom_ext_methods *meths);
|
|
|
|
__owur int custom_ext_parse(SSL *s, unsigned int context, unsigned int ext_type,
|
|
const unsigned char *ext_data, size_t ext_size,
|
|
X509 *x, size_t chainidx, int *al);
|
|
__owur int custom_ext_add(SSL *s, int context, WPACKET *pkt, X509 *x,
|
|
size_t chainidx, int maxversion, int *al);
|
|
|
|
__owur int custom_exts_copy(custom_ext_methods *dst,
|
|
const custom_ext_methods *src);
|
|
__owur int custom_exts_copy_flags(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 /* OPENSSL_UNIT_TEST */
|
|
|
|
# define ssl_init_wbio_buffer SSL_test_functions()->p_ssl_init_wbio_buffer
|
|
# define ssl3_setup_buffers SSL_test_functions()->p_ssl3_setup_buffers
|
|
|
|
# endif
|
|
#endif
|