X-Git-Url: https://git.openssl.org/?p=openssl.git;a=blobdiff_plain;f=ssl%2Fssl_locl.h;h=fe4ac839cf0149dbb2b6a2e6f155af2cd61fe84f;hp=076129c8ea346d6600a93e26ad949c1c9878f0fd;hb=063a8905bfd53f3cc12a01789efc23c0ea6af053;hpb=224551f73222609952dcc0f21a6b007009c23d60 diff --git a/ssl/ssl_locl.h b/ssl/ssl_locl.h index 076129c8ea..fe4ac839cf 100644 --- a/ssl/ssl_locl.h +++ b/ssl/ssl_locl.h @@ -55,6 +55,59 @@ * copied and put under another distribution licence * [including the GNU Public Licence.] */ +/* ==================================================================== + * Copyright (c) 1998-2001 The OpenSSL Project. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * 3. All advertising materials mentioning features or use of this + * software must display the following acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" + * + * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to + * endorse or promote products derived from this software without + * prior written permission. For written permission, please contact + * openssl-core@openssl.org. + * + * 5. Products derived from this software may not be called "OpenSSL" + * nor may "OpenSSL" appear in their names without prior written + * permission of the OpenSSL Project. + * + * 6. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit (http://www.openssl.org/)" + * + * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY + * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR + * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + * ==================================================================== + * + * This product includes cryptographic software written by Eric Young + * (eay@cryptsoft.com). This product includes software written by Tim + * Hudson (tjh@cryptsoft.com). + * + */ #ifndef HEADER_SSL_LOCL_H #define HEADER_SSL_LOCL_H @@ -63,7 +116,7 @@ #include #include -#include +#include "e_os.h" #include #include @@ -74,6 +127,12 @@ #include #include #include +#include + +#ifdef OPENSSL_BUILD_SHLIBSSL +# undef OPENSSL_EXTERN +# define OPENSSL_EXTERN OPENSSL_EXPORT +#endif #define PKCS1_CHECK @@ -155,72 +214,129 @@ #define DEC32(a) ((a)=((a)-1)&0xffffffffL) #define MAX_MAC_SIZE 20 /* up from 16 for SSLv3 */ -#define SSL_MKEY_MASK 0x0000001FL +/* + * Define the Bitmasks for SSL_CIPHER.algorithms. + * This bits are used packed as dense as possible. If new methods/ciphers + * etc will be added, the bits a likely to change, so this information + * is for internal library use only, even though SSL_CIPHER.algorithms + * can be publicly accessed. + * Use the according functions for cipher management instead. + * + * The bit mask handling in the selection and sorting scheme in + * ssl_create_cipher_list() has only limited capabilities, reflecting + * that the different entities within are mutually exclusive: + * ONLY ONE BIT PER MASK CAN BE SET AT A TIME. + */ +#define SSL_MKEY_MASK 0x0000003FL #define SSL_kRSA 0x00000001L /* RSA key exchange */ #define SSL_kDHr 0x00000002L /* DH cert RSA CA cert */ #define SSL_kDHd 0x00000004L /* DH cert DSA CA cert */ #define SSL_kFZA 0x00000008L #define SSL_kEDH 0x00000010L /* tmp DH key no DH cert */ +#define SSL_kKRB5 0x00000020L /* Kerberos5 key exchange */ #define SSL_EDH (SSL_kEDH|(SSL_AUTH_MASK^SSL_aNULL)) -#define SSL_AUTH_MASK 0x000003e0L -#define SSL_aRSA 0x00000020L /* Authenticate with RSA */ -#define SSL_aDSS 0x00000040L /* Authenticate with DSS */ +#define SSL_AUTH_MASK 0x00000FC0L +#define SSL_aRSA 0x00000040L /* Authenticate with RSA */ +#define SSL_aDSS 0x00000080L /* Authenticate with DSS */ #define SSL_DSS SSL_aDSS -#define SSL_aFZA 0x00000080L -#define SSL_aNULL 0x00000100L /* no Authenticate, ADH */ -#define SSL_aDH 0x00000200L /* no Authenticate, ADH */ +#define SSL_aFZA 0x00000100L +#define SSL_aNULL 0x00000200L /* no Authenticate, ADH */ +#define SSL_aDH 0x00000400L /* no Authenticate, ADH */ +#define SSL_aKRB5 0x00000800L /* Authenticate with KRB5 */ #define SSL_NULL (SSL_eNULL) #define SSL_ADH (SSL_kEDH|SSL_aNULL) #define SSL_RSA (SSL_kRSA|SSL_aRSA) #define SSL_DH (SSL_kDHr|SSL_kDHd|SSL_kEDH) #define SSL_FZA (SSL_aFZA|SSL_kFZA|SSL_eFZA) - -#define SSL_ENC_MASK 0x0001Fc00L -#define SSL_DES 0x00000400L -#define SSL_3DES 0x00000800L -#define SSL_RC4 0x00001000L -#define SSL_RC2 0x00002000L -#define SSL_IDEA 0x00004000L -#define SSL_eFZA 0x00008000L -#define SSL_eNULL 0x00010000L - -#define SSL_MAC_MASK 0x00060000L -#define SSL_MD5 0x00020000L -#define SSL_SHA1 0x00040000L +#define SSL_KRB5 (SSL_kKRB5|SSL_aKRB5) + +#define SSL_ENC_MASK 0x0087F000L +#define SSL_DES 0x00001000L +#define SSL_3DES 0x00002000L +#define SSL_RC4 0x00004000L +#define SSL_RC2 0x00008000L +#define SSL_IDEA 0x00010000L +#define SSL_eFZA 0x00020000L +#define SSL_eNULL 0x00040000L +#define SSL_AES 0x00800000L + +#define SSL_MAC_MASK 0x00180000L +#define SSL_MD5 0x00080000L +#define SSL_SHA1 0x00100000L #define SSL_SHA (SSL_SHA1) -#define SSL_EXP_MASK 0x00300000L -#define SSL_EXP40 0x00100000L -#define SSL_NOT_EXP 0x00200000L -#define SSL_EXP56 0x00300000L -#define SSL_IS_EXPORT(a) ((a)&SSL_EXP40) -#define SSL_IS_EXPORT56(a) (((a)&SSL_EXP_MASK) == SSL_EXP56) -#define SSL_IS_EXPORT40(a) (((a)&SSL_EXP_MASK) == SSL_EXP40) -#define SSL_C_IS_EXPORT(c) SSL_IS_EXPORT((c)->algorithms) -#define SSL_C_IS_EXPORT56(c) SSL_IS_EXPORT56((c)->algorithms) -#define SSL_C_IS_EXPORT40(c) SSL_IS_EXPORT40((c)->algorithms) -#define SSL_EXPORT_KEYLENGTH(a) (SSL_IS_EXPORT40(a) ? 5 : \ +#define SSL_SSL_MASK 0x00600000L +#define SSL_SSLV2 0x00200000L +#define SSL_SSLV3 0x00400000L +#define SSL_TLSV1 SSL_SSLV3 /* for now */ + +/* we have used 007fffff - 9 bits left to go */ + +/* + * Export and cipher strength information. For each cipher we have to decide + * whether it is exportable or not. This information is likely to change + * over time, since the export control rules are no static technical issue. + * + * Independent of the export flag the cipher strength is sorted into classes. + * SSL_EXP40 was denoting the 40bit US export limit of past times, which now + * is at 56bit (SSL_EXP56). If the exportable cipher class is going to change + * again (eg. to 64bit) the use of "SSL_EXP*" becomes blurred even more, + * since SSL_EXP64 could be similar to SSL_LOW. + * For this reason SSL_MICRO and SSL_MINI macros are included to widen the + * namespace of SSL_LOW-SSL_HIGH to lower values. As development of speed + * and ciphers goes, another extension to SSL_SUPER and/or SSL_ULTRA would + * be possible. + */ +#define SSL_EXP_MASK 0x00000003L +#define SSL_NOT_EXP 0x00000001L +#define SSL_EXPORT 0x00000002L + +#define SSL_STRONG_MASK 0x000000fcL +#define SSL_STRONG_NONE 0x00000004L +#define SSL_EXP40 0x00000008L +#define SSL_MICRO (SSL_EXP40) +#define SSL_EXP56 0x00000010L +#define SSL_MINI (SSL_EXP56) +#define SSL_LOW 0x00000020L +#define SSL_MEDIUM 0x00000040L +#define SSL_HIGH 0x00000080L + +/* we have used 000000ff - 24 bits left to go */ + +/* + * Macros to check the export status and cipher strength for export ciphers. + * Even though the macros for EXPORT and EXPORT40/56 have similar names, + * their meaning is different: + * *_EXPORT macros check the 'exportable' status. + * *_EXPORT40/56 macros are used to check whether a certain cipher strength + * is given. + * Since the SSL_IS_EXPORT* and SSL_EXPORT* macros depend on the correct + * algorithm structure element to be passed (algorithms, algo_strength) and no + * typechecking can be done as they are all of type unsigned long, their + * direct usage is discouraged. + * Use the SSL_C_* macros instead. + */ +#define SSL_IS_EXPORT(a) ((a)&SSL_EXPORT) +#define SSL_IS_EXPORT56(a) ((a)&SSL_EXP56) +#define SSL_IS_EXPORT40(a) ((a)&SSL_EXP40) +#define SSL_C_IS_EXPORT(c) SSL_IS_EXPORT((c)->algo_strength) +#define SSL_C_IS_EXPORT56(c) SSL_IS_EXPORT56((c)->algo_strength) +#define SSL_C_IS_EXPORT40(c) SSL_IS_EXPORT40((c)->algo_strength) + +#define SSL_EXPORT_KEYLENGTH(a,s) (SSL_IS_EXPORT40(s) ? 5 : \ ((a)&SSL_ENC_MASK) == SSL_DES ? 8 : 7) #define SSL_EXPORT_PKEYLENGTH(a) (SSL_IS_EXPORT40(a) ? 512 : 1024) -#define SSL_C_EXPORT_KEYLENGTH(c) SSL_EXPORT_KEYLENGTH((c)->algorithms) -#define SSL_C_EXPORT_PKEYLENGTH(c) SSL_EXPORT_PKEYLENGTH((c)->algorithms) - -#define SSL_SSL_MASK 0x00c00000L -#define SSL_SSLV2 0x00400000L -#define SSL_SSLV3 0x00800000L -#define SSL_TLSV1 SSL_SSLV3 /* for now */ +#define SSL_C_EXPORT_KEYLENGTH(c) SSL_EXPORT_KEYLENGTH((c)->algorithms, \ + (c)->algo_strength) +#define SSL_C_EXPORT_PKEYLENGTH(c) SSL_EXPORT_PKEYLENGTH((c)->algo_strength) -#define SSL_STRONG_MASK 0x07000000L -#define SSL_LOW 0x01000000L -#define SSL_MEDIUM 0x02000000L -#define SSL_HIGH 0x04000000L -/* we have used 0fffffff - 4 bits left to go */ #define SSL_ALL 0xffffffffL #define SSL_ALL_CIPHERS (SSL_MKEY_MASK|SSL_AUTH_MASK|SSL_ENC_MASK|\ - SSL_MAC_MASK|SSL_EXP_MASK) + SSL_MAC_MASK) +#define SSL_ALL_STRENGTHS (SSL_EXP_MASK|SSL_STRONG_MASK) /* Mostly for SSLv3 */ #define SSL_PKEY_RSA_ENC 0 @@ -254,21 +370,21 @@ typedef struct cert_st { /* Current active set */ CERT_PKEY *key; /* ALWAYS points to an element of the pkeys array - * Probably it would make more sense to store - * an index, not a pointer. */ - + * Probably it would make more sense to store + * an index, not a pointer. */ + /* The following masks are for the key and auth * algorithms that are supported by the certs below */ int valid; unsigned long mask; unsigned long export_mask; -#ifndef NO_RSA +#ifndef OPENSSL_NO_RSA RSA *rsa_tmp; - RSA *(*rsa_tmp_cb)(SSL *ssl,int export,int keysize); + RSA *(*rsa_tmp_cb)(SSL *ssl,int is_export,int keysize); #endif -#ifndef NO_DH +#ifndef OPENSSL_NO_DH DH *dh_tmp; - DH *(*dh_tmp_cb)(SSL *ssl,int export,int keysize); + DH *(*dh_tmp_cb)(SSL *ssl,int is_export,int keysize); #endif CERT_PKEY pkeys[SSL_PKEY_NUM]; @@ -289,10 +405,10 @@ typedef struct sess_cert_st /* Obviously we don't have the private keys of these, * so maybe we shouldn't even use the CERT_PKEY type here. */ -#ifndef NO_RSA +#ifndef OPENSSL_NO_RSA RSA *peer_rsa_tmp; /* not used for SSL 2 */ #endif -#ifndef NO_DH +#ifndef OPENSSL_NO_DH DH *peer_dh_tmp; /* not used for SSL 2 */ #endif @@ -319,39 +435,39 @@ typedef struct sess_cert_st /* 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 strucute :-) */ + * an opaque structure :-) */ typedef struct ssl3_enc_method { - int (*enc)(); - int (*mac)(); - int (*setup_key_block)(); - int (*generate_master_secret)(); - int (*change_cipher_state)(); - int (*final_finish_mac)(); + int (*enc)(SSL *, int); + int (*mac)(SSL *, unsigned char *, int); + int (*setup_key_block)(SSL *); + int (*generate_master_secret)(SSL *, unsigned char *, unsigned char *, int); + int (*change_cipher_state)(SSL *, int); + int (*final_finish_mac)(SSL *, EVP_MD_CTX *, EVP_MD_CTX *, const char *, int, unsigned char *); int finish_mac_length; - int (*cert_verify_mac)(); - unsigned char client_finished[20]; - int client_finished_len; - unsigned char server_finished[20]; - int server_finished_len; - int (*alert_value)(); + int (*cert_verify_mac)(SSL *, EVP_MD_CTX *, unsigned char *); + const char *client_finished_label; + int client_finished_label_len; + const char *server_finished_label; + int server_finished_label_len; + int (*alert_value)(int); } SSL3_ENC_METHOD; /* Used for holding the relevant compression methods loaded into SSL_CTX */ typedef struct ssl3_comp_st { - int comp_id; /* The identifer byte for this compression type */ + 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; -EXTERN SSL3_ENC_METHOD ssl3_undef_enc_method; -EXTERN SSL_CIPHER ssl2_ciphers[]; -EXTERN SSL_CIPHER ssl3_ciphers[]; +OPENSSL_EXTERN SSL3_ENC_METHOD ssl3_undef_enc_method; +OPENSSL_EXTERN SSL_CIPHER ssl2_ciphers[]; +OPENSSL_EXTERN SSL_CIPHER ssl3_ciphers[]; -#ifdef VMS +#ifdef OPENSSL_SYS_VMS #undef SSL_COMP_get_compression_methods -#define SSL_COMP_get_compression_methods SSL_COMP_get_compress_methods +#define SSL_COMP_get_compression_methods SSL_COMP_get_compress_methods #endif @@ -371,15 +487,16 @@ void ssl_sess_cert_free(SESS_CERT *sc); int ssl_set_peer_cert_type(SESS_CERT *c, int type); int ssl_get_new_session(SSL *s, int session); int ssl_get_prev_session(SSL *s, unsigned char *session,int len); -int ssl_cipher_id_cmp(SSL_CIPHER *a,SSL_CIPHER *b); -int ssl_cipher_ptr_id_cmp(SSL_CIPHER **ap,SSL_CIPHER **bp); +int ssl_cipher_id_cmp(const SSL_CIPHER *a,const SSL_CIPHER *b); +int ssl_cipher_ptr_id_cmp(const SSL_CIPHER * const *ap, + const SSL_CIPHER * const *bp); STACK_OF(SSL_CIPHER) *ssl_bytes_to_cipher_list(SSL *s,unsigned char *p,int num, STACK_OF(SSL_CIPHER) **skp); int ssl_cipher_list_to_bytes(SSL *s,STACK_OF(SSL_CIPHER) *sk,unsigned char *p); -STACK_OF(SSL_CIPHER) *ssl_create_cipher_list(SSL_METHOD *meth, +STACK_OF(SSL_CIPHER) *ssl_create_cipher_list(const SSL_METHOD *meth, STACK_OF(SSL_CIPHER) **pref, STACK_OF(SSL_CIPHER) **sorted, - char *str); + const char *rule_str); void ssl_update_cache(SSL *s, int mode); int ssl_cipher_get_evp(SSL_SESSION *s,const EVP_CIPHER **enc,const EVP_MD **md, SSL_COMP **comp); @@ -410,12 +527,14 @@ void ssl2_free(SSL *s); int ssl2_accept(SSL *s); int ssl2_connect(SSL *s); int ssl2_read(SSL *s, void *buf, int len); -int ssl2_peek(SSL *s, char *buf, int len); +int ssl2_peek(SSL *s, void *buf, int len); int ssl2_write(SSL *s, const void *buf, int len); int ssl2_shutdown(SSL *s); void ssl2_clear(SSL *s); -long ssl2_ctrl(SSL *s,int cmd, long larg, char *parg); -long ssl2_ctx_ctrl(SSL_CTX *s,int cmd, long larg, char *parg); +long ssl2_ctrl(SSL *s,int cmd, long larg, void *parg); +long ssl2_ctx_ctrl(SSL_CTX *s,int cmd, long larg, void *parg); +long ssl2_callback_ctrl(SSL *s,int cmd, void (*fp)()); +long ssl2_ctx_callback_ctrl(SSL_CTX *s,int cmd, void (*fp)()); int ssl2_pending(SSL *s); SSL_CIPHER *ssl3_get_cipher_by_char(const unsigned char *p); @@ -433,36 +552,37 @@ int ssl3_generate_master_secret(SSL *s, unsigned char *out, unsigned char *p, int len); int ssl3_get_req_cert_type(SSL *s,unsigned char *p); long ssl3_get_message(SSL *s, int st1, int stn, int mt, long max, int *ok); -int ssl3_send_finished(SSL *s, int a, int b, unsigned char *sender,int slen); +int ssl3_send_finished(SSL *s, int a, int b, const char *sender,int slen); int ssl3_num_ciphers(void); SSL_CIPHER *ssl3_get_cipher(unsigned int u); int ssl3_renegotiate(SSL *ssl); int ssl3_renegotiate_check(SSL *ssl); int ssl3_dispatch_alert(SSL *s); -int ssl3_read_bytes(SSL *s, int type, unsigned char *buf, int len); -int ssl3_part_read(SSL *s, int i); +int ssl3_read_bytes(SSL *s, int type, unsigned char *buf, int len, int peek); int ssl3_write_bytes(SSL *s, int type, const void *buf, int len); -int ssl3_final_finish_mac(SSL *s, EVP_MD_CTX *ctx1,EVP_MD_CTX *ctx2, - unsigned char *sender, int slen,unsigned char *p); +int ssl3_final_finish_mac(SSL *s, EVP_MD_CTX *ctx1, EVP_MD_CTX *ctx2, + const char *sender, int slen,unsigned char *p); int ssl3_cert_verify_mac(SSL *s, EVP_MD_CTX *in, unsigned char *p); void ssl3_finish_mac(SSL *s, const unsigned char *buf, int len); int ssl3_enc(SSL *s, int send_data); int ssl3_mac(SSL *ssl, unsigned char *md, int send_data); unsigned long ssl3_output_cert_chain(SSL *s, X509 *x); -SSL_CIPHER *ssl3_choose_cipher(SSL *ssl,STACK_OF(SSL_CIPHER) *have, - STACK_OF(SSL_CIPHER) *pref); +SSL_CIPHER *ssl3_choose_cipher(SSL *ssl,STACK_OF(SSL_CIPHER) *clnt, + STACK_OF(SSL_CIPHER) *srvr); int ssl3_setup_buffers(SSL *s); int ssl3_new(SSL *s); void ssl3_free(SSL *s); int ssl3_accept(SSL *s); int ssl3_connect(SSL *s); int ssl3_read(SSL *s, void *buf, int len); -int ssl3_peek(SSL *s,char *buf, int len); +int ssl3_peek(SSL *s, void *buf, int len); int ssl3_write(SSL *s, const void *buf, int len); int ssl3_shutdown(SSL *s); void ssl3_clear(SSL *s); -long ssl3_ctrl(SSL *s,int cmd, long larg, char *parg); -long ssl3_ctx_ctrl(SSL_CTX *s,int cmd, long larg, char *parg); +long ssl3_ctrl(SSL *s,int cmd, long larg, void *parg); +long ssl3_ctx_ctrl(SSL_CTX *s,int cmd, long larg, void *parg); +long ssl3_callback_ctrl(SSL *s,int cmd, void (*fp)()); +long ssl3_ctx_callback_ctrl(SSL_CTX *s,int cmd, void (*fp)()); int ssl3_pending(SSL *s); int ssl23_accept(SSL *s); @@ -473,7 +593,8 @@ int ssl23_write_bytes(SSL *s); int tls1_new(SSL *s); void tls1_free(SSL *s); void tls1_clear(SSL *s); -long tls1_ctrl(SSL *s,int cmd, long larg, char *parg); +long tls1_ctrl(SSL *s,int cmd, long larg, void *parg); +long tls1_callback_ctrl(SSL *s,int cmd, void (*fp)()); SSL_METHOD *tlsv1_base_method(void ); int ssl_init_wbio_buffer(SSL *s, int push); @@ -483,7 +604,7 @@ int tls1_change_cipher_state(SSL *s, int which); int tls1_setup_key_block(SSL *s); int tls1_enc(SSL *s, int snd); int tls1_final_finish_mac(SSL *s, EVP_MD_CTX *in1_ctx, EVP_MD_CTX *in2_ctx, - unsigned char *str, int slen, unsigned char *p); + const char *str, int slen, unsigned char *p); int tls1_cert_verify_mac(SSL *s, EVP_MD_CTX *in, unsigned char *p); int tls1_mac(SSL *ssl, unsigned char *md, int snd); int tls1_generate_master_secret(SSL *s, unsigned char *out,