1 | /* ssl/ssl3.h */ |
2 | /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) |
3 | * All rights reserved. |
4 | * |
5 | * This package is an SSL implementation written |
6 | * by Eric Young (eay@cryptsoft.com). |
7 | * The implementation was written so as to conform with Netscapes SSL. |
8 | * |
9 | * This library is free for commercial and non-commercial use as long as |
10 | * the following conditions are aheared to. The following conditions |
11 | * apply to all code found in this distribution, be it the RC4, RSA, |
12 | * lhash, DES, etc., code; not just the SSL code. The SSL documentation |
13 | * included with this distribution is covered by the same copyright terms |
14 | * except that the holder is Tim Hudson (tjh@cryptsoft.com). |
15 | * |
16 | * Copyright remains Eric Young's, and as such any Copyright notices in |
17 | * the code are not to be removed. |
18 | * If this package is used in a product, Eric Young should be given attribution |
19 | * as the author of the parts of the library used. |
20 | * This can be in the form of a textual message at program startup or |
21 | * in documentation (online or textual) provided with the package. |
22 | * |
23 | * Redistribution and use in source and binary forms, with or without |
24 | * modification, are permitted provided that the following conditions |
25 | * are met: |
26 | * 1. Redistributions of source code must retain the copyright |
27 | * notice, this list of conditions and the following disclaimer. |
28 | * 2. Redistributions in binary form must reproduce the above copyright |
29 | * notice, this list of conditions and the following disclaimer in the |
30 | * documentation and/or other materials provided with the distribution. |
31 | * 3. All advertising materials mentioning features or use of this software |
32 | * must display the following acknowledgement: |
33 | * "This product includes cryptographic software written by |
34 | * Eric Young (eay@cryptsoft.com)" |
35 | * The word 'cryptographic' can be left out if the rouines from the library |
36 | * being used are not cryptographic related :-). |
37 | * 4. If you include any Windows specific code (or a derivative thereof) from |
38 | * the apps directory (application code) you must include an acknowledgement: |
39 | * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" |
40 | * |
41 | * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND |
42 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
43 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
44 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
45 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
46 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
47 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
48 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
49 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
50 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
51 | * SUCH DAMAGE. |
52 | * |
53 | * The licence and distribution terms for any publically available version or |
54 | * derivative of this code cannot be changed. i.e. this code cannot simply be |
55 | * copied and put under another distribution licence |
56 | * [including the GNU Public Licence.] |
57 | */ |
58 | /* ==================================================================== |
59 | * Copyright (c) 1998-2002 The OpenSSL Project. All rights reserved. |
60 | * |
61 | * Redistribution and use in source and binary forms, with or without |
62 | * modification, are permitted provided that the following conditions |
63 | * are met: |
64 | * |
65 | * 1. Redistributions of source code must retain the above copyright |
66 | * notice, this list of conditions and the following disclaimer. |
67 | * |
68 | * 2. Redistributions in binary form must reproduce the above copyright |
69 | * notice, this list of conditions and the following disclaimer in |
70 | * the documentation and/or other materials provided with the |
71 | * distribution. |
72 | * |
73 | * 3. All advertising materials mentioning features or use of this |
74 | * software must display the following acknowledgment: |
75 | * "This product includes software developed by the OpenSSL Project |
76 | * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" |
77 | * |
78 | * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to |
79 | * endorse or promote products derived from this software without |
80 | * prior written permission. For written permission, please contact |
81 | * openssl-core@openssl.org. |
82 | * |
83 | * 5. Products derived from this software may not be called "OpenSSL" |
84 | * nor may "OpenSSL" appear in their names without prior written |
85 | * permission of the OpenSSL Project. |
86 | * |
87 | * 6. Redistributions of any form whatsoever must retain the following |
88 | * acknowledgment: |
89 | * "This product includes software developed by the OpenSSL Project |
90 | * for use in the OpenSSL Toolkit (http://www.openssl.org/)" |
91 | * |
92 | * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY |
93 | * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
94 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
95 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR |
96 | * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
97 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
98 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
99 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
100 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
101 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
102 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
103 | * OF THE POSSIBILITY OF SUCH DAMAGE. |
104 | * ==================================================================== |
105 | * |
106 | * This product includes cryptographic software written by Eric Young |
107 | * (eay@cryptsoft.com). This product includes software written by Tim |
108 | * Hudson (tjh@cryptsoft.com). |
109 | * |
110 | */ |
111 | /* ==================================================================== |
112 | * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED. |
113 | * ECC cipher suite support in OpenSSL originally developed by |
114 | * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project. |
115 | */ |
116 | |
117 | #ifndef HEADER_SSL3_H |
118 | #define HEADER_SSL3_H |
119 | |
120 | #ifndef OPENSSL_NO_COMP |
121 | #include <openssl/comp.h> |
122 | #endif |
123 | #include <openssl/buffer.h> |
124 | #include <openssl/evp.h> |
125 | #include <openssl/ssl.h> |
126 | |
127 | #ifdef __cplusplus |
128 | extern "C" { |
129 | #endif |
130 | |
131 | /* Signalling cipher suite value: from draft-ietf-tls-renegotiation-03.txt */ |
132 | #define SSL3_CK_SCSV 0x030000FF |
133 | |
134 | #define SSL3_CK_RSA_NULL_MD5 0x03000001 |
135 | #define SSL3_CK_RSA_NULL_SHA 0x03000002 |
136 | #define SSL3_CK_RSA_RC4_40_MD5 0x03000003 |
137 | #define SSL3_CK_RSA_RC4_128_MD5 0x03000004 |
138 | #define SSL3_CK_RSA_RC4_128_SHA 0x03000005 |
139 | #define SSL3_CK_RSA_RC2_40_MD5 0x03000006 |
140 | #define SSL3_CK_RSA_IDEA_128_SHA 0x03000007 |
141 | #define SSL3_CK_RSA_DES_40_CBC_SHA 0x03000008 |
142 | #define SSL3_CK_RSA_DES_64_CBC_SHA 0x03000009 |
143 | #define SSL3_CK_RSA_DES_192_CBC3_SHA 0x0300000A |
144 | |
145 | #define SSL3_CK_DH_DSS_DES_40_CBC_SHA 0x0300000B |
146 | #define SSL3_CK_DH_DSS_DES_64_CBC_SHA 0x0300000C |
147 | #define SSL3_CK_DH_DSS_DES_192_CBC3_SHA 0x0300000D |
148 | #define SSL3_CK_DH_RSA_DES_40_CBC_SHA 0x0300000E |
149 | #define SSL3_CK_DH_RSA_DES_64_CBC_SHA 0x0300000F |
150 | #define SSL3_CK_DH_RSA_DES_192_CBC3_SHA 0x03000010 |
151 | |
152 | #define SSL3_CK_EDH_DSS_DES_40_CBC_SHA 0x03000011 |
153 | #define SSL3_CK_EDH_DSS_DES_64_CBC_SHA 0x03000012 |
154 | #define SSL3_CK_EDH_DSS_DES_192_CBC3_SHA 0x03000013 |
155 | #define SSL3_CK_EDH_RSA_DES_40_CBC_SHA 0x03000014 |
156 | #define SSL3_CK_EDH_RSA_DES_64_CBC_SHA 0x03000015 |
157 | #define SSL3_CK_EDH_RSA_DES_192_CBC3_SHA 0x03000016 |
158 | |
159 | #define SSL3_CK_ADH_RC4_40_MD5 0x03000017 |
160 | #define SSL3_CK_ADH_RC4_128_MD5 0x03000018 |
161 | #define SSL3_CK_ADH_DES_40_CBC_SHA 0x03000019 |
162 | #define SSL3_CK_ADH_DES_64_CBC_SHA 0x0300001A |
163 | #define SSL3_CK_ADH_DES_192_CBC_SHA 0x0300001B |
164 | |
165 | #if 0 |
166 | #define SSL3_CK_FZA_DMS_NULL_SHA 0x0300001C |
167 | #define SSL3_CK_FZA_DMS_FZA_SHA 0x0300001D |
168 | #if 0 /* Because it clashes with KRB5, is never used any more, and is safe |
169 | to remove according to David Hopwood <david.hopwood@zetnet.co.uk> |
170 | of the ietf-tls list */ |
171 | #define SSL3_CK_FZA_DMS_RC4_SHA 0x0300001E |
172 | #endif |
173 | #endif |
174 | |
175 | /* VRS Additional Kerberos5 entries |
176 | */ |
177 | #define SSL3_CK_KRB5_DES_64_CBC_SHA 0x0300001E |
178 | #define SSL3_CK_KRB5_DES_192_CBC3_SHA 0x0300001F |
179 | #define SSL3_CK_KRB5_RC4_128_SHA 0x03000020 |
180 | #define SSL3_CK_KRB5_IDEA_128_CBC_SHA 0x03000021 |
181 | #define SSL3_CK_KRB5_DES_64_CBC_MD5 0x03000022 |
182 | #define SSL3_CK_KRB5_DES_192_CBC3_MD5 0x03000023 |
183 | #define SSL3_CK_KRB5_RC4_128_MD5 0x03000024 |
184 | #define SSL3_CK_KRB5_IDEA_128_CBC_MD5 0x03000025 |
185 | |
186 | #define SSL3_CK_KRB5_DES_40_CBC_SHA 0x03000026 |
187 | #define SSL3_CK_KRB5_RC2_40_CBC_SHA 0x03000027 |
188 | #define SSL3_CK_KRB5_RC4_40_SHA 0x03000028 |
189 | #define SSL3_CK_KRB5_DES_40_CBC_MD5 0x03000029 |
190 | #define SSL3_CK_KRB5_RC2_40_CBC_MD5 0x0300002A |
191 | #define SSL3_CK_KRB5_RC4_40_MD5 0x0300002B |
192 | |
193 | #define SSL3_TXT_RSA_NULL_MD5 "NULL-MD5" |
194 | #define SSL3_TXT_RSA_NULL_SHA "NULL-SHA" |
195 | #define SSL3_TXT_RSA_RC4_40_MD5 "EXP-RC4-MD5" |
196 | #define SSL3_TXT_RSA_RC4_128_MD5 "RC4-MD5" |
197 | #define SSL3_TXT_RSA_RC4_128_SHA "RC4-SHA" |
198 | #define SSL3_TXT_RSA_RC2_40_MD5 "EXP-RC2-CBC-MD5" |
199 | #define SSL3_TXT_RSA_IDEA_128_SHA "IDEA-CBC-SHA" |
200 | #define SSL3_TXT_RSA_DES_40_CBC_SHA "EXP-DES-CBC-SHA" |
201 | #define SSL3_TXT_RSA_DES_64_CBC_SHA "DES-CBC-SHA" |
202 | #define SSL3_TXT_RSA_DES_192_CBC3_SHA "DES-CBC3-SHA" |
203 | |
204 | #define SSL3_TXT_DH_DSS_DES_40_CBC_SHA "EXP-DH-DSS-DES-CBC-SHA" |
205 | #define SSL3_TXT_DH_DSS_DES_64_CBC_SHA "DH-DSS-DES-CBC-SHA" |
206 | #define SSL3_TXT_DH_DSS_DES_192_CBC3_SHA "DH-DSS-DES-CBC3-SHA" |
207 | #define SSL3_TXT_DH_RSA_DES_40_CBC_SHA "EXP-DH-RSA-DES-CBC-SHA" |
208 | #define SSL3_TXT_DH_RSA_DES_64_CBC_SHA "DH-RSA-DES-CBC-SHA" |
209 | #define SSL3_TXT_DH_RSA_DES_192_CBC3_SHA "DH-RSA-DES-CBC3-SHA" |
210 | |
211 | #define SSL3_TXT_EDH_DSS_DES_40_CBC_SHA "EXP-EDH-DSS-DES-CBC-SHA" |
212 | #define SSL3_TXT_EDH_DSS_DES_64_CBC_SHA "EDH-DSS-DES-CBC-SHA" |
213 | #define SSL3_TXT_EDH_DSS_DES_192_CBC3_SHA "EDH-DSS-DES-CBC3-SHA" |
214 | #define SSL3_TXT_EDH_RSA_DES_40_CBC_SHA "EXP-EDH-RSA-DES-CBC-SHA" |
215 | #define SSL3_TXT_EDH_RSA_DES_64_CBC_SHA "EDH-RSA-DES-CBC-SHA" |
216 | #define SSL3_TXT_EDH_RSA_DES_192_CBC3_SHA "EDH-RSA-DES-CBC3-SHA" |
217 | |
218 | #define SSL3_TXT_ADH_RC4_40_MD5 "EXP-ADH-RC4-MD5" |
219 | #define SSL3_TXT_ADH_RC4_128_MD5 "ADH-RC4-MD5" |
220 | #define SSL3_TXT_ADH_DES_40_CBC_SHA "EXP-ADH-DES-CBC-SHA" |
221 | #define SSL3_TXT_ADH_DES_64_CBC_SHA "ADH-DES-CBC-SHA" |
222 | #define SSL3_TXT_ADH_DES_192_CBC_SHA "ADH-DES-CBC3-SHA" |
223 | |
224 | #if 0 |
225 | #define SSL3_TXT_FZA_DMS_NULL_SHA "FZA-NULL-SHA" |
226 | #define SSL3_TXT_FZA_DMS_FZA_SHA "FZA-FZA-CBC-SHA" |
227 | #define SSL3_TXT_FZA_DMS_RC4_SHA "FZA-RC4-SHA" |
228 | #endif |
229 | |
230 | #define SSL3_TXT_KRB5_DES_64_CBC_SHA "KRB5-DES-CBC-SHA" |
231 | #define SSL3_TXT_KRB5_DES_192_CBC3_SHA "KRB5-DES-CBC3-SHA" |
232 | #define SSL3_TXT_KRB5_RC4_128_SHA "KRB5-RC4-SHA" |
233 | #define SSL3_TXT_KRB5_IDEA_128_CBC_SHA "KRB5-IDEA-CBC-SHA" |
234 | #define SSL3_TXT_KRB5_DES_64_CBC_MD5 "KRB5-DES-CBC-MD5" |
235 | #define SSL3_TXT_KRB5_DES_192_CBC3_MD5 "KRB5-DES-CBC3-MD5" |
236 | #define SSL3_TXT_KRB5_RC4_128_MD5 "KRB5-RC4-MD5" |
237 | #define SSL3_TXT_KRB5_IDEA_128_CBC_MD5 "KRB5-IDEA-CBC-MD5" |
238 | |
239 | #define SSL3_TXT_KRB5_DES_40_CBC_SHA "EXP-KRB5-DES-CBC-SHA" |
240 | #define SSL3_TXT_KRB5_RC2_40_CBC_SHA "EXP-KRB5-RC2-CBC-SHA" |
241 | #define SSL3_TXT_KRB5_RC4_40_SHA "EXP-KRB5-RC4-SHA" |
242 | #define SSL3_TXT_KRB5_DES_40_CBC_MD5 "EXP-KRB5-DES-CBC-MD5" |
243 | #define SSL3_TXT_KRB5_RC2_40_CBC_MD5 "EXP-KRB5-RC2-CBC-MD5" |
244 | #define SSL3_TXT_KRB5_RC4_40_MD5 "EXP-KRB5-RC4-MD5" |
245 | |
246 | #define SSL3_SSL_SESSION_ID_LENGTH 32 |
247 | #define SSL3_MAX_SSL_SESSION_ID_LENGTH 32 |
248 | |
249 | #define SSL3_MASTER_SECRET_SIZE 48 |
250 | #define SSL3_RANDOM_SIZE 32 |
251 | #define SSL3_SESSION_ID_SIZE 32 |
252 | #define SSL3_RT_HEADER_LENGTH 5 |
253 | |
254 | #ifndef SSL3_ALIGN_PAYLOAD |
255 | /* Some will argue that this increases memory footprint, but it's |
256 | * not actually true. Point is that malloc has to return at least |
257 | * 64-bit aligned pointers, meaning that allocating 5 bytes wastes |
258 | * 3 bytes in either case. Suggested pre-gaping simply moves these |
259 | * wasted bytes from the end of allocated region to its front, |
260 | * but makes data payload aligned, which improves performance:-) */ |
261 | # define SSL3_ALIGN_PAYLOAD 8 |
262 | #else |
263 | # if (SSL3_ALIGN_PAYLOAD&(SSL3_ALIGN_PAYLOAD-1))!=0 |
264 | # error "insane SSL3_ALIGN_PAYLOAD" |
265 | # undef SSL3_ALIGN_PAYLOAD |
266 | # endif |
267 | #endif |
268 | |
269 | /* This is the maximum MAC (digest) size used by the SSL library. |
270 | * Currently maximum of 20 is used by SHA1, but we reserve for |
271 | * future extension for 512-bit hashes. |
272 | */ |
273 | |
274 | #define SSL3_RT_MAX_MD_SIZE 64 |
275 | |
276 | /* Maximum block size used in all ciphersuites. Currently 16 for AES. |
277 | */ |
278 | |
279 | #define SSL_RT_MAX_CIPHER_BLOCK_SIZE 16 |
280 | |
281 | #define SSL3_RT_MAX_EXTRA (16384) |
282 | |
283 | /* Maximum plaintext length: defined by SSL/TLS standards */ |
284 | #define SSL3_RT_MAX_PLAIN_LENGTH 16384 |
285 | /* Maximum compression overhead: defined by SSL/TLS standards */ |
286 | #define SSL3_RT_MAX_COMPRESSED_OVERHEAD 1024 |
287 | |
288 | /* The standards give a maximum encryption overhead of 1024 bytes. |
289 | * In practice the value is lower than this. The overhead is the maximum |
290 | * number of padding bytes (256) plus the mac size. |
291 | */ |
292 | #define SSL3_RT_MAX_ENCRYPTED_OVERHEAD (256 + SSL3_RT_MAX_MD_SIZE) |
293 | |
294 | /* OpenSSL currently only uses a padding length of at most one block so |
295 | * the send overhead is smaller. |
296 | */ |
297 | |
298 | #define SSL3_RT_SEND_MAX_ENCRYPTED_OVERHEAD \ |
299 | (SSL_RT_MAX_CIPHER_BLOCK_SIZE + SSL3_RT_MAX_MD_SIZE) |
300 | |
301 | /* If compression isn't used don't include the compression overhead */ |
302 | |
303 | #ifdef OPENSSL_NO_COMP |
304 | #define SSL3_RT_MAX_COMPRESSED_LENGTH SSL3_RT_MAX_PLAIN_LENGTH |
305 | #else |
306 | #define SSL3_RT_MAX_COMPRESSED_LENGTH \ |
307 | (SSL3_RT_MAX_PLAIN_LENGTH+SSL3_RT_MAX_COMPRESSED_OVERHEAD) |
308 | #endif |
309 | #define SSL3_RT_MAX_ENCRYPTED_LENGTH \ |
310 | (SSL3_RT_MAX_ENCRYPTED_OVERHEAD+SSL3_RT_MAX_COMPRESSED_LENGTH) |
311 | #define SSL3_RT_MAX_PACKET_SIZE \ |
312 | (SSL3_RT_MAX_ENCRYPTED_LENGTH+SSL3_RT_HEADER_LENGTH) |
313 | |
314 | #define SSL3_MD_CLIENT_FINISHED_CONST "\x43\x4C\x4E\x54" |
315 | #define SSL3_MD_SERVER_FINISHED_CONST "\x53\x52\x56\x52" |
316 | |
317 | #define SSL3_VERSION 0x0300 |
318 | #define SSL3_VERSION_MAJOR 0x03 |
319 | #define SSL3_VERSION_MINOR 0x00 |
320 | |
321 | #define SSL3_RT_CHANGE_CIPHER_SPEC 20 |
322 | #define SSL3_RT_ALERT 21 |
323 | #define SSL3_RT_HANDSHAKE 22 |
324 | #define SSL3_RT_APPLICATION_DATA 23 |
325 | #define TLS1_RT_HEARTBEAT 24 |
326 | |
327 | #define SSL3_AL_WARNING 1 |
328 | #define SSL3_AL_FATAL 2 |
329 | |
330 | #define SSL3_AD_CLOSE_NOTIFY 0 |
331 | #define SSL3_AD_UNEXPECTED_MESSAGE 10 /* fatal */ |
332 | #define SSL3_AD_BAD_RECORD_MAC 20 /* fatal */ |
333 | #define SSL3_AD_DECOMPRESSION_FAILURE 30 /* fatal */ |
334 | #define SSL3_AD_HANDSHAKE_FAILURE 40 /* fatal */ |
335 | #define SSL3_AD_NO_CERTIFICATE 41 |
336 | #define SSL3_AD_BAD_CERTIFICATE 42 |
337 | #define SSL3_AD_UNSUPPORTED_CERTIFICATE 43 |
338 | #define SSL3_AD_CERTIFICATE_REVOKED 44 |
339 | #define SSL3_AD_CERTIFICATE_EXPIRED 45 |
340 | #define SSL3_AD_CERTIFICATE_UNKNOWN 46 |
341 | #define SSL3_AD_ILLEGAL_PARAMETER 47 /* fatal */ |
342 | |
343 | #define TLS1_HB_REQUEST 1 |
344 | #define TLS1_HB_RESPONSE 2 |
345 | |
346 | #ifndef OPENSSL_NO_SSL_INTERN |
347 | |
348 | typedef struct ssl3_record_st |
349 | { |
350 | /*r */ int type; /* type of record */ |
351 | /*rw*/ unsigned int length; /* How many bytes available */ |
352 | /*r */ unsigned int off; /* read/write offset into 'buf' */ |
353 | /*rw*/ unsigned char *data; /* pointer to the record data */ |
354 | /*rw*/ unsigned char *input; /* where the decode bytes are */ |
355 | /*r */ unsigned char *comp; /* only used with decompression - malloc()ed */ |
356 | /*r */ unsigned long epoch; /* epoch number, needed by DTLS1 */ |
357 | /*r */ unsigned char seq_num[8]; /* sequence number, needed by DTLS1 */ |
358 | } SSL3_RECORD; |
359 | |
360 | typedef struct ssl3_buffer_st |
361 | { |
362 | unsigned char *buf; /* at least SSL3_RT_MAX_PACKET_SIZE bytes, |
363 | * see ssl3_setup_buffers() */ |
364 | size_t len; /* buffer size */ |
365 | int offset; /* where to 'copy from' */ |
366 | int left; /* how many bytes left */ |
367 | } SSL3_BUFFER; |
368 | |
369 | #endif |
370 | |
371 | #define SSL3_CT_RSA_SIGN 1 |
372 | #define SSL3_CT_DSS_SIGN 2 |
373 | #define SSL3_CT_RSA_FIXED_DH 3 |
374 | #define SSL3_CT_DSS_FIXED_DH 4 |
375 | #define SSL3_CT_RSA_EPHEMERAL_DH 5 |
376 | #define SSL3_CT_DSS_EPHEMERAL_DH 6 |
377 | #define SSL3_CT_FORTEZZA_DMS 20 |
378 | /* SSL3_CT_NUMBER is used to size arrays and it must be large |
379 | * enough to contain all of the cert types defined either for |
380 | * SSLv3 and TLSv1. |
381 | */ |
382 | #define SSL3_CT_NUMBER 9 |
383 | |
384 | |
385 | #define SSL3_FLAGS_NO_RENEGOTIATE_CIPHERS 0x0001 |
386 | #define SSL3_FLAGS_DELAY_CLIENT_FINISHED 0x0002 |
387 | #define SSL3_FLAGS_POP_BUFFER 0x0004 |
388 | #define TLS1_FLAGS_TLS_PADDING_BUG 0x0008 |
389 | #define TLS1_FLAGS_SKIP_CERT_VERIFY 0x0010 |
390 | #define TLS1_FLAGS_KEEP_HANDSHAKE 0x0020 |
391 | #define SSL3_FLAGS_CCS_OK 0x0080 |
392 | |
393 | /* SSL3_FLAGS_SGC_RESTART_DONE is set when we |
394 | * restart a handshake because of MS SGC and so prevents us |
395 | * from restarting the handshake in a loop. It's reset on a |
396 | * renegotiation, so effectively limits the client to one restart |
397 | * per negotiation. This limits the possibility of a DDoS |
398 | * attack where the client handshakes in a loop using SGC to |
399 | * restart. Servers which permit renegotiation can still be |
400 | * effected, but we can't prevent that. |
401 | */ |
402 | #define SSL3_FLAGS_SGC_RESTART_DONE 0x0040 |
403 | |
404 | #ifndef OPENSSL_NO_SSL_INTERN |
405 | |
406 | typedef struct ssl3_state_st |
407 | { |
408 | long flags; |
409 | int delay_buf_pop_ret; |
410 | |
411 | unsigned char read_sequence[8]; |
412 | int read_mac_secret_size; |
413 | unsigned char read_mac_secret[EVP_MAX_MD_SIZE]; |
414 | unsigned char write_sequence[8]; |
415 | int write_mac_secret_size; |
416 | unsigned char write_mac_secret[EVP_MAX_MD_SIZE]; |
417 | |
418 | unsigned char server_random[SSL3_RANDOM_SIZE]; |
419 | unsigned char client_random[SSL3_RANDOM_SIZE]; |
420 | |
421 | /* flags for countermeasure against known-IV weakness */ |
422 | int need_empty_fragments; |
423 | int empty_fragment_done; |
424 | |
425 | /* The value of 'extra' when the buffers were initialized */ |
426 | int ; |
427 | |
428 | SSL3_BUFFER rbuf; /* read IO goes into here */ |
429 | SSL3_BUFFER wbuf; /* write IO goes into here */ |
430 | |
431 | SSL3_RECORD rrec; /* each decoded record goes in here */ |
432 | SSL3_RECORD wrec; /* goes out from here */ |
433 | |
434 | /* storage for Alert/Handshake protocol data received but not |
435 | * yet processed by ssl3_read_bytes: */ |
436 | unsigned char alert_fragment[2]; |
437 | unsigned int alert_fragment_len; |
438 | unsigned char handshake_fragment[4]; |
439 | unsigned int handshake_fragment_len; |
440 | |
441 | /* partial write - check the numbers match */ |
442 | unsigned int wnum; /* number of bytes sent so far */ |
443 | int wpend_tot; /* number bytes written */ |
444 | int wpend_type; |
445 | int wpend_ret; /* number of bytes submitted */ |
446 | const unsigned char *wpend_buf; |
447 | |
448 | /* used during startup, digest all incoming/outgoing packets */ |
449 | BIO *handshake_buffer; |
450 | /* When set of handshake digests is determined, buffer is hashed |
451 | * and freed and MD_CTX-es for all required digests are stored in |
452 | * this array */ |
453 | EVP_MD_CTX **handshake_dgst; |
454 | /* this is set whenerver we see a change_cipher_spec message |
455 | * come in when we are not looking for one */ |
456 | int change_cipher_spec; |
457 | |
458 | int warn_alert; |
459 | int fatal_alert; |
460 | /* we allow one fatal and one warning alert to be outstanding, |
461 | * send close alert via the warning alert */ |
462 | int alert_dispatch; |
463 | unsigned char send_alert[2]; |
464 | |
465 | /* This flag is set when we should renegotiate ASAP, basically when |
466 | * there is no more data in the read or write buffers */ |
467 | int renegotiate; |
468 | int total_renegotiations; |
469 | int num_renegotiations; |
470 | |
471 | int in_read_app_data; |
472 | |
473 | /* Opaque PRF input as used for the current handshake. |
474 | * These fields are used only if TLSEXT_TYPE_opaque_prf_input is defined |
475 | * (otherwise, they are merely present to improve binary compatibility) */ |
476 | void *client_opaque_prf_input; |
477 | size_t client_opaque_prf_input_len; |
478 | void *server_opaque_prf_input; |
479 | size_t server_opaque_prf_input_len; |
480 | |
481 | struct { |
482 | /* actually only needs to be 16+20 */ |
483 | unsigned char cert_verify_md[EVP_MAX_MD_SIZE*2]; |
484 | |
485 | /* actually only need to be 16+20 for SSLv3 and 12 for TLS */ |
486 | unsigned char finish_md[EVP_MAX_MD_SIZE*2]; |
487 | int finish_md_len; |
488 | unsigned char peer_finish_md[EVP_MAX_MD_SIZE*2]; |
489 | int peer_finish_md_len; |
490 | |
491 | unsigned long message_size; |
492 | int message_type; |
493 | |
494 | /* used to hold the new cipher we are going to use */ |
495 | const SSL_CIPHER *new_cipher; |
496 | #ifndef OPENSSL_NO_DH |
497 | DH *dh; |
498 | #endif |
499 | |
500 | #ifndef OPENSSL_NO_ECDH |
501 | EC_KEY *ecdh; /* holds short lived ECDH key */ |
502 | #endif |
503 | |
504 | /* used when SSL_ST_FLUSH_DATA is entered */ |
505 | int next_state; |
506 | |
507 | int reuse_message; |
508 | |
509 | /* used for certificate requests */ |
510 | int cert_req; |
511 | int ctype_num; |
512 | char ctype[SSL3_CT_NUMBER]; |
513 | STACK_OF(X509_NAME) *ca_names; |
514 | |
515 | int use_rsa_tmp; |
516 | |
517 | int key_block_length; |
518 | unsigned char *key_block; |
519 | |
520 | const EVP_CIPHER *new_sym_enc; |
521 | const EVP_MD *new_hash; |
522 | int new_mac_pkey_type; |
523 | int new_mac_secret_size; |
524 | #ifndef OPENSSL_NO_COMP |
525 | const SSL_COMP *new_compression; |
526 | #else |
527 | char *new_compression; |
528 | #endif |
529 | int cert_request; |
530 | } tmp; |
531 | |
532 | /* Connection binding to prevent renegotiation attacks */ |
533 | unsigned char previous_client_finished[EVP_MAX_MD_SIZE]; |
534 | unsigned char previous_client_finished_len; |
535 | unsigned char previous_server_finished[EVP_MAX_MD_SIZE]; |
536 | unsigned char previous_server_finished_len; |
537 | int send_connection_binding; /* TODOEKR */ |
538 | |
539 | #ifndef OPENSSL_NO_NEXTPROTONEG |
540 | /* Set if we saw the Next Protocol Negotiation extension from our peer. */ |
541 | int next_proto_neg_seen; |
542 | #endif |
543 | |
544 | #ifndef OPENSSL_NO_TLSEXT |
545 | #ifndef OPENSSL_NO_EC |
546 | /* This is set to true if we believe that this is a version of Safari |
547 | * running on OS X 10.6 or newer. We wish to know this because Safari |
548 | * on 10.8 .. 10.8.3 has broken ECDHE-ECDSA support. */ |
549 | char is_probably_safari; |
550 | #endif /* !OPENSSL_NO_EC */ |
551 | #endif /* !OPENSSL_NO_TLSEXT */ |
552 | } SSL3_STATE; |
553 | |
554 | #endif |
555 | |
556 | /* SSLv3 */ |
557 | /*client */ |
558 | /* extra state */ |
559 | #define SSL3_ST_CW_FLUSH (0x100|SSL_ST_CONNECT) |
560 | #ifndef OPENSSL_NO_SCTP |
561 | #define DTLS1_SCTP_ST_CW_WRITE_SOCK (0x310|SSL_ST_CONNECT) |
562 | #define DTLS1_SCTP_ST_CR_READ_SOCK (0x320|SSL_ST_CONNECT) |
563 | #endif |
564 | /* write to server */ |
565 | #define SSL3_ST_CW_CLNT_HELLO_A (0x110|SSL_ST_CONNECT) |
566 | #define SSL3_ST_CW_CLNT_HELLO_B (0x111|SSL_ST_CONNECT) |
567 | /* read from server */ |
568 | #define SSL3_ST_CR_SRVR_HELLO_A (0x120|SSL_ST_CONNECT) |
569 | #define SSL3_ST_CR_SRVR_HELLO_B (0x121|SSL_ST_CONNECT) |
570 | #define DTLS1_ST_CR_HELLO_VERIFY_REQUEST_A (0x126|SSL_ST_CONNECT) |
571 | #define DTLS1_ST_CR_HELLO_VERIFY_REQUEST_B (0x127|SSL_ST_CONNECT) |
572 | #define SSL3_ST_CR_CERT_A (0x130|SSL_ST_CONNECT) |
573 | #define SSL3_ST_CR_CERT_B (0x131|SSL_ST_CONNECT) |
574 | #define SSL3_ST_CR_KEY_EXCH_A (0x140|SSL_ST_CONNECT) |
575 | #define SSL3_ST_CR_KEY_EXCH_B (0x141|SSL_ST_CONNECT) |
576 | #define SSL3_ST_CR_CERT_REQ_A (0x150|SSL_ST_CONNECT) |
577 | #define SSL3_ST_CR_CERT_REQ_B (0x151|SSL_ST_CONNECT) |
578 | #define SSL3_ST_CR_SRVR_DONE_A (0x160|SSL_ST_CONNECT) |
579 | #define SSL3_ST_CR_SRVR_DONE_B (0x161|SSL_ST_CONNECT) |
580 | /* write to server */ |
581 | #define SSL3_ST_CW_CERT_A (0x170|SSL_ST_CONNECT) |
582 | #define SSL3_ST_CW_CERT_B (0x171|SSL_ST_CONNECT) |
583 | #define SSL3_ST_CW_CERT_C (0x172|SSL_ST_CONNECT) |
584 | #define SSL3_ST_CW_CERT_D (0x173|SSL_ST_CONNECT) |
585 | #define SSL3_ST_CW_KEY_EXCH_A (0x180|SSL_ST_CONNECT) |
586 | #define SSL3_ST_CW_KEY_EXCH_B (0x181|SSL_ST_CONNECT) |
587 | #define SSL3_ST_CW_CERT_VRFY_A (0x190|SSL_ST_CONNECT) |
588 | #define SSL3_ST_CW_CERT_VRFY_B (0x191|SSL_ST_CONNECT) |
589 | #define SSL3_ST_CW_CHANGE_A (0x1A0|SSL_ST_CONNECT) |
590 | #define SSL3_ST_CW_CHANGE_B (0x1A1|SSL_ST_CONNECT) |
591 | #ifndef OPENSSL_NO_NEXTPROTONEG |
592 | #define SSL3_ST_CW_NEXT_PROTO_A (0x200|SSL_ST_CONNECT) |
593 | #define SSL3_ST_CW_NEXT_PROTO_B (0x201|SSL_ST_CONNECT) |
594 | #endif |
595 | #define SSL3_ST_CW_FINISHED_A (0x1B0|SSL_ST_CONNECT) |
596 | #define SSL3_ST_CW_FINISHED_B (0x1B1|SSL_ST_CONNECT) |
597 | /* read from server */ |
598 | #define SSL3_ST_CR_CHANGE_A (0x1C0|SSL_ST_CONNECT) |
599 | #define SSL3_ST_CR_CHANGE_B (0x1C1|SSL_ST_CONNECT) |
600 | #define SSL3_ST_CR_FINISHED_A (0x1D0|SSL_ST_CONNECT) |
601 | #define SSL3_ST_CR_FINISHED_B (0x1D1|SSL_ST_CONNECT) |
602 | #define SSL3_ST_CR_SESSION_TICKET_A (0x1E0|SSL_ST_CONNECT) |
603 | #define SSL3_ST_CR_SESSION_TICKET_B (0x1E1|SSL_ST_CONNECT) |
604 | #define SSL3_ST_CR_CERT_STATUS_A (0x1F0|SSL_ST_CONNECT) |
605 | #define SSL3_ST_CR_CERT_STATUS_B (0x1F1|SSL_ST_CONNECT) |
606 | |
607 | /* server */ |
608 | /* extra state */ |
609 | #define SSL3_ST_SW_FLUSH (0x100|SSL_ST_ACCEPT) |
610 | #ifndef OPENSSL_NO_SCTP |
611 | #define DTLS1_SCTP_ST_SW_WRITE_SOCK (0x310|SSL_ST_ACCEPT) |
612 | #define DTLS1_SCTP_ST_SR_READ_SOCK (0x320|SSL_ST_ACCEPT) |
613 | #endif |
614 | /* read from client */ |
615 | /* Do not change the number values, they do matter */ |
616 | #define SSL3_ST_SR_CLNT_HELLO_A (0x110|SSL_ST_ACCEPT) |
617 | #define SSL3_ST_SR_CLNT_HELLO_B (0x111|SSL_ST_ACCEPT) |
618 | #define SSL3_ST_SR_CLNT_HELLO_C (0x112|SSL_ST_ACCEPT) |
619 | /* write to client */ |
620 | #define DTLS1_ST_SW_HELLO_VERIFY_REQUEST_A (0x113|SSL_ST_ACCEPT) |
621 | #define DTLS1_ST_SW_HELLO_VERIFY_REQUEST_B (0x114|SSL_ST_ACCEPT) |
622 | #define SSL3_ST_SW_HELLO_REQ_A (0x120|SSL_ST_ACCEPT) |
623 | #define SSL3_ST_SW_HELLO_REQ_B (0x121|SSL_ST_ACCEPT) |
624 | #define SSL3_ST_SW_HELLO_REQ_C (0x122|SSL_ST_ACCEPT) |
625 | #define SSL3_ST_SW_SRVR_HELLO_A (0x130|SSL_ST_ACCEPT) |
626 | #define SSL3_ST_SW_SRVR_HELLO_B (0x131|SSL_ST_ACCEPT) |
627 | #define SSL3_ST_SW_CERT_A (0x140|SSL_ST_ACCEPT) |
628 | #define SSL3_ST_SW_CERT_B (0x141|SSL_ST_ACCEPT) |
629 | #define SSL3_ST_SW_KEY_EXCH_A (0x150|SSL_ST_ACCEPT) |
630 | #define SSL3_ST_SW_KEY_EXCH_B (0x151|SSL_ST_ACCEPT) |
631 | #define SSL3_ST_SW_CERT_REQ_A (0x160|SSL_ST_ACCEPT) |
632 | #define SSL3_ST_SW_CERT_REQ_B (0x161|SSL_ST_ACCEPT) |
633 | #define SSL3_ST_SW_SRVR_DONE_A (0x170|SSL_ST_ACCEPT) |
634 | #define SSL3_ST_SW_SRVR_DONE_B (0x171|SSL_ST_ACCEPT) |
635 | /* read from client */ |
636 | #define SSL3_ST_SR_CERT_A (0x180|SSL_ST_ACCEPT) |
637 | #define SSL3_ST_SR_CERT_B (0x181|SSL_ST_ACCEPT) |
638 | #define SSL3_ST_SR_KEY_EXCH_A (0x190|SSL_ST_ACCEPT) |
639 | #define SSL3_ST_SR_KEY_EXCH_B (0x191|SSL_ST_ACCEPT) |
640 | #define SSL3_ST_SR_CERT_VRFY_A (0x1A0|SSL_ST_ACCEPT) |
641 | #define SSL3_ST_SR_CERT_VRFY_B (0x1A1|SSL_ST_ACCEPT) |
642 | #define SSL3_ST_SR_CHANGE_A (0x1B0|SSL_ST_ACCEPT) |
643 | #define SSL3_ST_SR_CHANGE_B (0x1B1|SSL_ST_ACCEPT) |
644 | #ifndef OPENSSL_NO_NEXTPROTONEG |
645 | #define SSL3_ST_SR_NEXT_PROTO_A (0x210|SSL_ST_ACCEPT) |
646 | #define SSL3_ST_SR_NEXT_PROTO_B (0x211|SSL_ST_ACCEPT) |
647 | #endif |
648 | #define SSL3_ST_SR_FINISHED_A (0x1C0|SSL_ST_ACCEPT) |
649 | #define SSL3_ST_SR_FINISHED_B (0x1C1|SSL_ST_ACCEPT) |
650 | /* write to client */ |
651 | #define SSL3_ST_SW_CHANGE_A (0x1D0|SSL_ST_ACCEPT) |
652 | #define SSL3_ST_SW_CHANGE_B (0x1D1|SSL_ST_ACCEPT) |
653 | #define SSL3_ST_SW_FINISHED_A (0x1E0|SSL_ST_ACCEPT) |
654 | #define SSL3_ST_SW_FINISHED_B (0x1E1|SSL_ST_ACCEPT) |
655 | #define SSL3_ST_SW_SESSION_TICKET_A (0x1F0|SSL_ST_ACCEPT) |
656 | #define SSL3_ST_SW_SESSION_TICKET_B (0x1F1|SSL_ST_ACCEPT) |
657 | #define SSL3_ST_SW_CERT_STATUS_A (0x200|SSL_ST_ACCEPT) |
658 | #define SSL3_ST_SW_CERT_STATUS_B (0x201|SSL_ST_ACCEPT) |
659 | |
660 | #define SSL3_MT_HELLO_REQUEST 0 |
661 | #define SSL3_MT_CLIENT_HELLO 1 |
662 | #define SSL3_MT_SERVER_HELLO 2 |
663 | #define SSL3_MT_NEWSESSION_TICKET 4 |
664 | #define SSL3_MT_CERTIFICATE 11 |
665 | #define SSL3_MT_SERVER_KEY_EXCHANGE 12 |
666 | #define SSL3_MT_CERTIFICATE_REQUEST 13 |
667 | #define SSL3_MT_SERVER_DONE 14 |
668 | #define SSL3_MT_CERTIFICATE_VERIFY 15 |
669 | #define SSL3_MT_CLIENT_KEY_EXCHANGE 16 |
670 | #define SSL3_MT_FINISHED 20 |
671 | #define SSL3_MT_CERTIFICATE_STATUS 22 |
672 | #ifndef OPENSSL_NO_NEXTPROTONEG |
673 | #define SSL3_MT_NEXT_PROTO 67 |
674 | #endif |
675 | #define DTLS1_MT_HELLO_VERIFY_REQUEST 3 |
676 | |
677 | |
678 | #define SSL3_MT_CCS 1 |
679 | |
680 | /* These are used when changing over to a new cipher */ |
681 | #define SSL3_CC_READ 0x01 |
682 | #define SSL3_CC_WRITE 0x02 |
683 | #define SSL3_CC_CLIENT 0x10 |
684 | #define SSL3_CC_SERVER 0x20 |
685 | #define SSL3_CHANGE_CIPHER_CLIENT_WRITE (SSL3_CC_CLIENT|SSL3_CC_WRITE) |
686 | #define SSL3_CHANGE_CIPHER_SERVER_READ (SSL3_CC_SERVER|SSL3_CC_READ) |
687 | #define SSL3_CHANGE_CIPHER_CLIENT_READ (SSL3_CC_CLIENT|SSL3_CC_READ) |
688 | #define SSL3_CHANGE_CIPHER_SERVER_WRITE (SSL3_CC_SERVER|SSL3_CC_WRITE) |
689 | |
690 | #ifdef __cplusplus |
691 | } |
692 | #endif |
693 | #endif |
694 | |
695 | |