* copied and put under another distribution licence
* [including the GNU Public Licence.]
*/
+/* ====================================================================
+ * Copyright (c) 1998-2002 The OpenSSL Project. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ *
+ * 3. All advertising materials mentioning features or use of this
+ * software must display the following acknowledgment:
+ * "This product includes software developed by the OpenSSL Project
+ * for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
+ *
+ * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
+ * endorse or promote products derived from this software without
+ * prior written permission. For written permission, please contact
+ * openssl-core@openssl.org.
+ *
+ * 5. Products derived from this software may not be called "OpenSSL"
+ * nor may "OpenSSL" appear in their names without prior written
+ * permission of the OpenSSL Project.
+ *
+ * 6. Redistributions of any form whatsoever must retain the following
+ * acknowledgment:
+ * "This product includes software developed by the OpenSSL Project
+ * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
+ * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
+ * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ * ====================================================================
+ *
+ * This product includes cryptographic software written by Eric Young
+ * (eay@cryptsoft.com). This product includes software written by Tim
+ * Hudson (tjh@cryptsoft.com).
+ *
+ */
+/* ====================================================================
+ * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
+ * ECC cipher suite support in OpenSSL originally developed by
+ * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project.
+ */
#ifndef HEADER_SSL3_H
#define HEADER_SSL3_H
-#include "buffer.h"
+#ifndef OPENSSL_NO_COMP
+#include <openssl/comp.h>
+#endif
+#include <openssl/buffer.h>
+#include <openssl/evp.h>
+#include <openssl/ssl.h>
#ifdef __cplusplus
extern "C" {
#define SSL3_CK_ADH_DES_64_CBC_SHA 0x0300001A
#define SSL3_CK_ADH_DES_192_CBC_SHA 0x0300001B
-#define SSL3_CK_FZA_DMS_NULL_SHA 0x0300001C
-#define SSL3_CK_FZA_DMS_FZA_SHA 0x0300001D
-#define SSL3_CK_FZA_DMS_RC4_SHA 0x0300001E
+#if 0
+ #define SSL3_CK_FZA_DMS_NULL_SHA 0x0300001C
+ #define SSL3_CK_FZA_DMS_FZA_SHA 0x0300001D
+ #if 0 /* Because it clashes with KRB5, is never used any more, and is safe
+ to remove according to David Hopwood <david.hopwood@zetnet.co.uk>
+ of the ietf-tls list */
+ #define SSL3_CK_FZA_DMS_RC4_SHA 0x0300001E
+ #endif
+#endif
+
+/* VRS Additional Kerberos5 entries
+ */
+#define SSL3_CK_KRB5_DES_64_CBC_SHA 0x0300001E
+#define SSL3_CK_KRB5_DES_192_CBC3_SHA 0x0300001F
+#define SSL3_CK_KRB5_RC4_128_SHA 0x03000020
+#define SSL3_CK_KRB5_IDEA_128_CBC_SHA 0x03000021
+#define SSL3_CK_KRB5_DES_64_CBC_MD5 0x03000022
+#define SSL3_CK_KRB5_DES_192_CBC3_MD5 0x03000023
+#define SSL3_CK_KRB5_RC4_128_MD5 0x03000024
+#define SSL3_CK_KRB5_IDEA_128_CBC_MD5 0x03000025
+
+#define SSL3_CK_KRB5_DES_40_CBC_SHA 0x03000026
+#define SSL3_CK_KRB5_RC2_40_CBC_SHA 0x03000027
+#define SSL3_CK_KRB5_RC4_40_SHA 0x03000028
+#define SSL3_CK_KRB5_DES_40_CBC_MD5 0x03000029
+#define SSL3_CK_KRB5_RC2_40_CBC_MD5 0x0300002A
+#define SSL3_CK_KRB5_RC4_40_MD5 0x0300002B
#define SSL3_TXT_RSA_NULL_MD5 "NULL-MD5"
#define SSL3_TXT_RSA_NULL_SHA "NULL-SHA"
#define SSL3_TXT_ADH_DES_64_CBC_SHA "ADH-DES-CBC-SHA"
#define SSL3_TXT_ADH_DES_192_CBC_SHA "ADH-DES-CBC3-SHA"
-#define SSL3_TXT_FZA_DMS_NULL_SHA "FZA-NULL-SHA"
-#define SSL3_TXT_FZA_DMS_FZA_SHA "FZA-FZA-CBC-SHA"
-#define SSL3_TXT_FZA_DMS_RC4_SHA "FZA-RC4-SHA"
+#if 0
+ #define SSL3_TXT_FZA_DMS_NULL_SHA "FZA-NULL-SHA"
+ #define SSL3_TXT_FZA_DMS_FZA_SHA "FZA-FZA-CBC-SHA"
+ #define SSL3_TXT_FZA_DMS_RC4_SHA "FZA-RC4-SHA"
+#endif
+
+#define SSL3_TXT_KRB5_DES_64_CBC_SHA "KRB5-DES-CBC-SHA"
+#define SSL3_TXT_KRB5_DES_192_CBC3_SHA "KRB5-DES-CBC3-SHA"
+#define SSL3_TXT_KRB5_RC4_128_SHA "KRB5-RC4-SHA"
+#define SSL3_TXT_KRB5_IDEA_128_CBC_SHA "KRB5-IDEA-CBC-SHA"
+#define SSL3_TXT_KRB5_DES_64_CBC_MD5 "KRB5-DES-CBC-MD5"
+#define SSL3_TXT_KRB5_DES_192_CBC3_MD5 "KRB5-DES-CBC3-MD5"
+#define SSL3_TXT_KRB5_RC4_128_MD5 "KRB5-RC4-MD5"
+#define SSL3_TXT_KRB5_IDEA_128_CBC_MD5 "KRB5-IDEA-CBC-MD5"
+
+#define SSL3_TXT_KRB5_DES_40_CBC_SHA "EXP-KRB5-DES-CBC-SHA"
+#define SSL3_TXT_KRB5_RC2_40_CBC_SHA "EXP-KRB5-RC2-CBC-SHA"
+#define SSL3_TXT_KRB5_RC4_40_SHA "EXP-KRB5-RC4-SHA"
+#define SSL3_TXT_KRB5_DES_40_CBC_MD5 "EXP-KRB5-DES-CBC-MD5"
+#define SSL3_TXT_KRB5_RC2_40_CBC_MD5 "EXP-KRB5-RC2-CBC-MD5"
+#define SSL3_TXT_KRB5_RC4_40_MD5 "EXP-KRB5-RC4-MD5"
#define SSL3_SSL_SESSION_ID_LENGTH 32
#define SSL3_MAX_SSL_SESSION_ID_LENGTH 32
#define SSL3_SESSION_ID_SIZE 32
#define SSL3_RT_HEADER_LENGTH 5
-/* Due to MS stuffing up, this can change.... */
-#if defined(WIN16) || (defined(MSDOS) && !defined(WIN32))
-#define SSL3_RT_MAX_EXTRA (14000)
+#ifndef SSL3_ALIGN_PAYLOAD
+ /* Some will argue that this increases memory footprint, but it's
+ * not actually true. Point is that malloc has to return at least
+ * 64-bit aligned pointers, meaning that allocating 5 bytes wastes
+ * 3 bytes in either case. Suggested pre-gaping simply moves these
+ * wasted bytes from the end of allocated region to its front,
+ * but makes data payload aligned, which improves performance:-) */
+# define SSL3_ALIGN_PAYLOAD 8
#else
-#define SSL3_RT_MAX_EXTRA (16384)
+# if (SSL3_ALIGN_PAYLOAD&(SSL3_ALIGN_PAYLOAD-1))!=0
+# error "insane SSL3_ALIGN_PAYLOAD"
+# undef SSL3_ALIGN_PAYLOAD
+# endif
#endif
+/* This is the maximum MAC (digest) size used by the SSL library.
+ * Currently maximum of 20 is used by SHA1, but we reserve for
+ * future extension for 512-bit hashes.
+ */
+
+#define SSL3_RT_MAX_MD_SIZE 64
+
+/* Maximum block size used in all ciphersuites. Currently 16 for AES.
+ */
+
+#define SSL_RT_MAX_CIPHER_BLOCK_SIZE 16
+
+#define SSL3_RT_MAX_EXTRA (16384)
+
+/* Maximum plaintext length: defined by SSL/TLS standards */
#define SSL3_RT_MAX_PLAIN_LENGTH 16384
-#define SSL3_RT_MAX_COMPRESSED_LENGTH (1024+SSL3_RT_MAX_PLAIN_LENGTH)
-#define SSL3_RT_MAX_ENCRYPTED_LENGTH (1024+SSL3_RT_MAX_COMPRESSED_LENGTH)
-#define SSL3_RT_MAX_PACKET_SIZE (SSL3_RT_MAX_ENCRYPTED_LENGTH+SSL3_RT_HEADER_LENGTH)
-#define SSL3_RT_MAX_DATA_SIZE (1024*1024)
-
-/* the states that a SSL3_RECORD can be in
- * For SSL_read it goes
- * rbuf->ENCODED -> read
- * ENCODED -> we need to decode everything - call decode_record
+/* Maximum compression overhead: defined by SSL/TLS standards */
+#define SSL3_RT_MAX_COMPRESSED_OVERHEAD 1024
+
+/* The standards give a maximum encryption overhead of 1024 bytes.
+ * In practice the value is lower than this. The overhead is the maximum
+ * number of padding bytes (256) plus the mac size.
+ */
+#define SSL3_RT_MAX_ENCRYPTED_OVERHEAD (256 + SSL3_RT_MAX_MD_SIZE)
+
+/* OpenSSL currently only uses a padding length of at most one block so
+ * the send overhead is smaller.
*/
-
-#define SSL3_RS_BLANK 1
-#define SSL3_RS_DATA
-#define SSL3_RS_ENCODED 2
-#define SSL3_RS_READ_MORE 3
-#define SSL3_RS_WRITE_MORE
-#define SSL3_RS_PLAIN 3
-#define SSL3_RS_PART_READ 4
-#define SSL3_RS_PART_WRITE 5
+#define SSL3_RT_SEND_MAX_ENCRYPTED_OVERHEAD \
+ (SSL_RT_MAX_CIPHER_BLOCK_SIZE + SSL3_RT_MAX_MD_SIZE)
+
+/* If compression isn't used don't include the compression overhead */
-#define SSL3_MD_CLIENT_FINISHED_CONST {0x43,0x4C,0x4E,0x54}
-#define SSL3_MD_SERVER_FINISHED_CONST {0x53,0x52,0x56,0x52}
+#ifdef OPENSSL_NO_COMP
+#define SSL3_RT_MAX_COMPRESSED_LENGTH SSL3_RT_MAX_PLAIN_LENGTH
+#else
+#define SSL3_RT_MAX_COMPRESSED_LENGTH \
+ (SSL3_RT_MAX_PLAIN_LENGTH+SSL3_RT_MAX_COMPRESSED_OVERHEAD)
+#endif
+#define SSL3_RT_MAX_ENCRYPTED_LENGTH \
+ (SSL3_RT_MAX_ENCRYPTED_OVERHEAD+SSL3_RT_MAX_COMPRESSED_LENGTH)
+#define SSL3_RT_MAX_PACKET_SIZE \
+ (SSL3_RT_MAX_ENCRYPTED_LENGTH+SSL3_RT_HEADER_LENGTH)
+
+#define SSL3_MD_CLIENT_FINISHED_CONST "\x43\x4C\x4E\x54"
+#define SSL3_MD_SERVER_FINISHED_CONST "\x53\x52\x56\x52"
#define SSL3_VERSION 0x0300
#define SSL3_VERSION_MAJOR 0x03
typedef struct ssl3_record_st
{
-/*r */ int type; /* type of record */
-/* */ /*int state;*/ /* any data in it? */
-/*rw*/ unsigned int length; /* How many bytes available */
-/*r */ unsigned int off; /* read/write offset into 'buf' */
-/*rw*/ unsigned char *data; /* pointer to the record data */
-/*rw*/ unsigned char *input; /* where the decode bytes are */
-/*r */ unsigned char *comp; /* only used with decompression - malloc()ed */
+/*r */ int type; /* type of record */
+/*rw*/ unsigned int length; /* How many bytes available */
+/*r */ unsigned int off; /* read/write offset into 'buf' */
+/*rw*/ unsigned char *data; /* pointer to the record data */
+/*rw*/ unsigned char *input; /* where the decode bytes are */
+/*r */ unsigned char *comp; /* only used with decompression - malloc()ed */
+/*r */ unsigned long epoch; /* epoch number, needed by DTLS1 */
+/*r */ unsigned char seq_num[8]; /* sequence number, needed by DTLS1 */
} SSL3_RECORD;
typedef struct ssl3_buffer_st
{
-/*r */ int total; /* used in non-blocking writes */
-/*r */ int wanted; /* how many more bytes we need */
-/*rw*/ int left; /* how many bytes left */
-/*rw*/ int offset; /* where to 'copy from' */
-/*rw*/ unsigned char *buf; /* SSL3_RT_MAX_PACKET_SIZE bytes */
+ unsigned char *buf; /* at least SSL3_RT_MAX_PACKET_SIZE bytes,
+ * see ssl3_setup_buffers() */
+ size_t len; /* buffer size */
+ int offset; /* where to 'copy from' */
+ int left; /* how many bytes left */
} SSL3_BUFFER;
#define SSL3_CT_RSA_SIGN 1
#define SSL3_CT_RSA_EPHEMERAL_DH 5
#define SSL3_CT_DSS_EPHEMERAL_DH 6
#define SSL3_CT_FORTEZZA_DMS 20
-#define SSL3_CT_NUMBER 7
+/* SSL3_CT_NUMBER is used to size arrays and it must be large
+ * enough to contain all of the cert types defined either for
+ * SSLv3 and TLSv1.
+ */
+#define SSL3_CT_NUMBER 7
+
#define SSL3_FLAGS_NO_RENEGOTIATE_CIPHERS 0x0001
#define SSL3_FLAGS_DELAY_CLIENT_FINISHED 0x0002
#define SSL3_FLAGS_POP_BUFFER 0x0004
#define TLS1_FLAGS_TLS_PADDING_BUG 0x0008
-#if 0
-#define AD_CLOSE_NOTIFY 0
-#define AD_UNEXPECTED_MESSAGE 1
-#define AD_BAD_RECORD_MAC 2
-#define AD_DECRYPTION_FAILED 3
-#define AD_RECORD_OVERFLOW 4
-#define AD_DECOMPRESSION_FAILURE 5 /* fatal */
-#define AD_HANDSHAKE_FAILURE 6 /* fatal */
-#define AD_NO_CERTIFICATE 7 /* Not under TLS */
-#define AD_BAD_CERTIFICATE 8
-#define AD_UNSUPPORTED_CERTIFICATE 9
-#define AD_CERTIFICATE_REVOKED 10
-#define AD_CERTIFICATE_EXPIRED 11
-#define AD_CERTIFICATE_UNKNOWN 12
-#define AD_ILLEGAL_PARAMETER 13 /* fatal */
-#define AD_UNKNOWN_CA 14 /* fatal */
-#define AD_ACCESS_DENIED 15 /* fatal */
-#define AD_DECODE_ERROR 16 /* fatal */
-#define AD_DECRYPT_ERROR 17
-#define AD_EXPORT_RESTRICION 18 /* fatal */
-#define AD_PROTOCOL_VERSION 19 /* fatal */
-#define AD_INSUFFICIENT_SECURITY 20 /* fatal */
-#define AD_INTERNAL_ERROR 21 /* fatal */
-#define AD_USER_CANCLED 22
-#define AD_NO_RENEGOTIATION 23
-#endif
-
-typedef struct ssl3_ctx_st
+typedef struct ssl3_state_st
{
long flags;
int delay_buf_pop_ret;
unsigned char server_random[SSL3_RANDOM_SIZE];
unsigned char client_random[SSL3_RANDOM_SIZE];
+ /* flags for countermeasure against known-IV weakness */
+ int need_empty_fragments;
+ int empty_fragment_done;
+
+ /* The value of 'extra' when the buffers were initialized */
+ int init_extra;
+
SSL3_BUFFER rbuf; /* read IO goes into here */
SSL3_BUFFER wbuf; /* write IO goes into here */
+
SSL3_RECORD rrec; /* each decoded record goes in here */
SSL3_RECORD wrec; /* goes out from here */
- /* Used by ssl3_read_n to point
- * to input data packet */
+
+ /* storage for Alert/Handshake protocol data received but not
+ * yet processed by ssl3_read_bytes: */
+ unsigned char alert_fragment[2];
+ unsigned int alert_fragment_len;
+ unsigned char handshake_fragment[4];
+ unsigned int handshake_fragment_len;
/* partial write - check the numbers match */
unsigned int wnum; /* number of bytes sent so far */
int wpend_tot; /* number bytes written */
int wpend_type;
int wpend_ret; /* number of bytes submitted */
- char *wpend_buf;
+ const unsigned char *wpend_buf;
/* used during startup, digest all incoming/outgoing packets */
EVP_MD_CTX finish_dgst1;
int warn_alert;
int fatal_alert;
- /* we alow one fatal and one warning alert to be outstanding,
+ /* we allow one fatal and one warning alert to be outstanding,
* send close alert via the warning alert */
int alert_dispatch;
- char send_alert[2];
+ 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 in_read_app_data;
struct {
- /* Actually only needs to be 16+20 for SSLv3 and 12 for TLS */
+ /* actually only needs to be 16+20 */
+ unsigned char cert_verify_md[EVP_MAX_MD_SIZE*2];
+
+ /* actually only need to be 16+20 for SSLv3 and 12 for TLS */
unsigned char finish_md[EVP_MAX_MD_SIZE*2];
+ int finish_md_len;
+ unsigned char peer_finish_md[EVP_MAX_MD_SIZE*2];
+ int peer_finish_md_len;
unsigned long message_size;
int message_type;
/* used to hold the new cipher we are going to use */
SSL_CIPHER *new_cipher;
+#ifndef OPENSSL_NO_DH
DH *dh;
+#endif
+
+#ifndef OPENSSL_NO_ECDH
+ EC_KEY *ecdh; /* holds short lived ECDH key */
+#endif
/* used when SSL_ST_FLUSH_DATA is entered */
int next_state;
int key_block_length;
unsigned char *key_block;
- EVP_CIPHER *new_sym_enc;
- EVP_MD *new_hash;
-#ifdef HEADER_COMP_H
- SSL_COMP *new_compression;
+ const EVP_CIPHER *new_sym_enc;
+ const EVP_MD *new_hash;
+#ifndef OPENSSL_NO_COMP
+ const SSL_COMP *new_compression;
#else
char *new_compression;
#endif
int cert_request;
} tmp;
- } SSL3_CTX;
+ } SSL3_STATE;
+
/* SSLv3 */
/*client */
/* read from server */
#define SSL3_ST_CR_SRVR_HELLO_A (0x120|SSL_ST_CONNECT)
#define SSL3_ST_CR_SRVR_HELLO_B (0x121|SSL_ST_CONNECT)
+#define DTLS1_ST_CR_HELLO_VERIFY_REQUEST_A (0x126|SSL_ST_CONNECT)
+#define DTLS1_ST_CR_HELLO_VERIFY_REQUEST_B (0x127|SSL_ST_CONNECT)
#define SSL3_ST_CR_CERT_A (0x130|SSL_ST_CONNECT)
#define SSL3_ST_CR_CERT_B (0x131|SSL_ST_CONNECT)
#define SSL3_ST_CR_KEY_EXCH_A (0x140|SSL_ST_CONNECT)
#define SSL3_ST_SR_CLNT_HELLO_B (0x111|SSL_ST_ACCEPT)
#define SSL3_ST_SR_CLNT_HELLO_C (0x112|SSL_ST_ACCEPT)
/* write to client */
+#define DTLS1_ST_SW_HELLO_VERIFY_REQUEST_A (0x113|SSL_ST_ACCEPT)
+#define DTLS1_ST_SW_HELLO_VERIFY_REQUEST_B (0x114|SSL_ST_ACCEPT)
#define SSL3_ST_SW_HELLO_REQ_A (0x120|SSL_ST_ACCEPT)
#define SSL3_ST_SW_HELLO_REQ_B (0x121|SSL_ST_ACCEPT)
#define SSL3_ST_SW_HELLO_REQ_C (0x122|SSL_ST_ACCEPT)
#define SSL3_ST_SW_FINISHED_A (0x1E0|SSL_ST_ACCEPT)
#define SSL3_ST_SW_FINISHED_B (0x1E1|SSL_ST_ACCEPT)
-#define SSL3_MT_CLIENT_REQUEST 0
+#define SSL3_MT_HELLO_REQUEST 0
#define SSL3_MT_CLIENT_HELLO 1
#define SSL3_MT_SERVER_HELLO 2
#define SSL3_MT_CERTIFICATE 11
#define SSL3_MT_CERTIFICATE_VERIFY 15
#define SSL3_MT_CLIENT_KEY_EXCHANGE 16
#define SSL3_MT_FINISHED 20
+#define DTLS1_MT_HELLO_VERIFY_REQUEST 3
+
#define SSL3_MT_CCS 1
projects / openssl.git / blobdiff