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1 | /* ssl/ssl_locl.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) 1998-2007 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 | * Copyright 2005 Nokia. All rights reserved. | |
118 | * | |
119 | * The portions of the attached software ("Contribution") is developed by | |
120 | * Nokia Corporation and is licensed pursuant to the OpenSSL open source | |
121 | * license. | |
122 | * | |
123 | * The Contribution, originally written by Mika Kousa and Pasi Eronen of | |
124 | * Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites | |
125 | * support (see RFC 4279) to OpenSSL. | |
126 | * | |
127 | * No patent licenses or other rights except those expressly stated in | |
128 | * the OpenSSL open source license shall be deemed granted or received | |
129 | * expressly, by implication, estoppel, or otherwise. | |
130 | * | |
131 | * No assurances are provided by Nokia that the Contribution does not | |
132 | * infringe the patent or other intellectual property rights of any third | |
133 | * party or that the license provides you with all the necessary rights | |
134 | * to make use of the Contribution. | |
135 | * | |
136 | * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN | |
137 | * ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA | |
138 | * SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY | |
139 | * OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR | |
140 | * OTHERWISE. | |
141 | */ | |
142 | ||
143 | #ifndef HEADER_SSL_LOCL_H | |
144 | # define HEADER_SSL_LOCL_H | |
145 | # include <stdlib.h> | |
146 | # include <time.h> | |
147 | # include <string.h> | |
148 | # include <errno.h> | |
149 | ||
150 | # include "e_os.h" | |
151 | ||
152 | # include <openssl/buffer.h> | |
153 | # ifndef OPENSSL_NO_COMP | |
154 | # include <openssl/comp.h> | |
155 | # endif | |
156 | # include <openssl/bio.h> | |
157 | # include <openssl/stack.h> | |
158 | # ifndef OPENSSL_NO_RSA | |
159 | # include <openssl/rsa.h> | |
160 | # endif | |
161 | # ifndef OPENSSL_NO_DSA | |
162 | # include <openssl/dsa.h> | |
163 | # endif | |
164 | # include <openssl/err.h> | |
165 | # include <openssl/ssl.h> | |
166 | # include <openssl/symhacks.h> | |
167 | ||
168 | #include "record/record.h" | |
169 | ||
170 | # ifdef OPENSSL_BUILD_SHLIBSSL | |
171 | # undef OPENSSL_EXTERN | |
172 | # define OPENSSL_EXTERN OPENSSL_EXPORT | |
173 | # endif | |
174 | ||
175 | # undef PKCS1_CHECK | |
176 | ||
177 | # define c2l(c,l) (l = ((unsigned long)(*((c)++))) , \ | |
178 | l|=(((unsigned long)(*((c)++)))<< 8), \ | |
179 | l|=(((unsigned long)(*((c)++)))<<16), \ | |
180 | l|=(((unsigned long)(*((c)++)))<<24)) | |
181 | ||
182 | /* NOTE - c is not incremented as per c2l */ | |
183 | # define c2ln(c,l1,l2,n) { \ | |
184 | c+=n; \ | |
185 | l1=l2=0; \ | |
186 | switch (n) { \ | |
187 | case 8: l2 =((unsigned long)(*(--(c))))<<24; \ | |
188 | case 7: l2|=((unsigned long)(*(--(c))))<<16; \ | |
189 | case 6: l2|=((unsigned long)(*(--(c))))<< 8; \ | |
190 | case 5: l2|=((unsigned long)(*(--(c)))); \ | |
191 | case 4: l1 =((unsigned long)(*(--(c))))<<24; \ | |
192 | case 3: l1|=((unsigned long)(*(--(c))))<<16; \ | |
193 | case 2: l1|=((unsigned long)(*(--(c))))<< 8; \ | |
194 | case 1: l1|=((unsigned long)(*(--(c)))); \ | |
195 | } \ | |
196 | } | |
197 | ||
198 | # define l2c(l,c) (*((c)++)=(unsigned char)(((l) )&0xff), \ | |
199 | *((c)++)=(unsigned char)(((l)>> 8)&0xff), \ | |
200 | *((c)++)=(unsigned char)(((l)>>16)&0xff), \ | |
201 | *((c)++)=(unsigned char)(((l)>>24)&0xff)) | |
202 | ||
203 | # define n2l(c,l) (l =((unsigned long)(*((c)++)))<<24, \ | |
204 | l|=((unsigned long)(*((c)++)))<<16, \ | |
205 | l|=((unsigned long)(*((c)++)))<< 8, \ | |
206 | l|=((unsigned long)(*((c)++)))) | |
207 | ||
208 | # define l2n(l,c) (*((c)++)=(unsigned char)(((l)>>24)&0xff), \ | |
209 | *((c)++)=(unsigned char)(((l)>>16)&0xff), \ | |
210 | *((c)++)=(unsigned char)(((l)>> 8)&0xff), \ | |
211 | *((c)++)=(unsigned char)(((l) )&0xff)) | |
212 | ||
213 | # define l2n6(l,c) (*((c)++)=(unsigned char)(((l)>>40)&0xff), \ | |
214 | *((c)++)=(unsigned char)(((l)>>32)&0xff), \ | |
215 | *((c)++)=(unsigned char)(((l)>>24)&0xff), \ | |
216 | *((c)++)=(unsigned char)(((l)>>16)&0xff), \ | |
217 | *((c)++)=(unsigned char)(((l)>> 8)&0xff), \ | |
218 | *((c)++)=(unsigned char)(((l) )&0xff)) | |
219 | ||
220 | # define l2n8(l,c) (*((c)++)=(unsigned char)(((l)>>56)&0xff), \ | |
221 | *((c)++)=(unsigned char)(((l)>>48)&0xff), \ | |
222 | *((c)++)=(unsigned char)(((l)>>40)&0xff), \ | |
223 | *((c)++)=(unsigned char)(((l)>>32)&0xff), \ | |
224 | *((c)++)=(unsigned char)(((l)>>24)&0xff), \ | |
225 | *((c)++)=(unsigned char)(((l)>>16)&0xff), \ | |
226 | *((c)++)=(unsigned char)(((l)>> 8)&0xff), \ | |
227 | *((c)++)=(unsigned char)(((l) )&0xff)) | |
228 | ||
229 | # define n2l6(c,l) (l =((BN_ULLONG)(*((c)++)))<<40, \ | |
230 | l|=((BN_ULLONG)(*((c)++)))<<32, \ | |
231 | l|=((BN_ULLONG)(*((c)++)))<<24, \ | |
232 | l|=((BN_ULLONG)(*((c)++)))<<16, \ | |
233 | l|=((BN_ULLONG)(*((c)++)))<< 8, \ | |
234 | l|=((BN_ULLONG)(*((c)++)))) | |
235 | ||
236 | /* NOTE - c is not incremented as per l2c */ | |
237 | # define l2cn(l1,l2,c,n) { \ | |
238 | c+=n; \ | |
239 | switch (n) { \ | |
240 | case 8: *(--(c))=(unsigned char)(((l2)>>24)&0xff); \ | |
241 | case 7: *(--(c))=(unsigned char)(((l2)>>16)&0xff); \ | |
242 | case 6: *(--(c))=(unsigned char)(((l2)>> 8)&0xff); \ | |
243 | case 5: *(--(c))=(unsigned char)(((l2) )&0xff); \ | |
244 | case 4: *(--(c))=(unsigned char)(((l1)>>24)&0xff); \ | |
245 | case 3: *(--(c))=(unsigned char)(((l1)>>16)&0xff); \ | |
246 | case 2: *(--(c))=(unsigned char)(((l1)>> 8)&0xff); \ | |
247 | case 1: *(--(c))=(unsigned char)(((l1) )&0xff); \ | |
248 | } \ | |
249 | } | |
250 | ||
251 | # define n2s(c,s) ((s=(((unsigned int)(c[0]))<< 8)| \ | |
252 | (((unsigned int)(c[1])) )),c+=2) | |
253 | # define s2n(s,c) ((c[0]=(unsigned char)(((s)>> 8)&0xff), \ | |
254 | c[1]=(unsigned char)(((s) )&0xff)),c+=2) | |
255 | ||
256 | # define n2l3(c,l) ((l =(((unsigned long)(c[0]))<<16)| \ | |
257 | (((unsigned long)(c[1]))<< 8)| \ | |
258 | (((unsigned long)(c[2])) )),c+=3) | |
259 | ||
260 | # define l2n3(l,c) ((c[0]=(unsigned char)(((l)>>16)&0xff), \ | |
261 | c[1]=(unsigned char)(((l)>> 8)&0xff), \ | |
262 | c[2]=(unsigned char)(((l) )&0xff)),c+=3) | |
263 | ||
264 | /* LOCAL STUFF */ | |
265 | ||
266 | # define SSL_DECRYPT 0 | |
267 | # define SSL_ENCRYPT 1 | |
268 | ||
269 | # define TWO_BYTE_BIT 0x80 | |
270 | # define SEC_ESC_BIT 0x40 | |
271 | # define TWO_BYTE_MASK 0x7fff | |
272 | # define THREE_BYTE_MASK 0x3fff | |
273 | ||
274 | # define INC32(a) ((a)=((a)+1)&0xffffffffL) | |
275 | # define DEC32(a) ((a)=((a)-1)&0xffffffffL) | |
276 | # define MAX_MAC_SIZE 20 /* up from 16 for SSLv3 */ | |
277 | ||
278 | /* | |
279 | * Define the Bitmasks for SSL_CIPHER.algorithms. | |
280 | * This bits are used packed as dense as possible. If new methods/ciphers | |
281 | * etc will be added, the bits a likely to change, so this information | |
282 | * is for internal library use only, even though SSL_CIPHER.algorithms | |
283 | * can be publicly accessed. | |
284 | * Use the according functions for cipher management instead. | |
285 | * | |
286 | * The bit mask handling in the selection and sorting scheme in | |
287 | * ssl_create_cipher_list() has only limited capabilities, reflecting | |
288 | * that the different entities within are mutually exclusive: | |
289 | * ONLY ONE BIT PER MASK CAN BE SET AT A TIME. | |
290 | */ | |
291 | ||
292 | /* Bits for algorithm_mkey (key exchange algorithm) */ | |
293 | /* RSA key exchange */ | |
294 | # define SSL_kRSA 0x00000001L | |
295 | /* DH cert, RSA CA cert */ | |
296 | # define SSL_kDHr 0x00000002L | |
297 | /* DH cert, DSA CA cert */ | |
298 | # define SSL_kDHd 0x00000004L | |
299 | /* tmp DH key no DH cert */ | |
300 | # define SSL_kDHE 0x00000008L | |
301 | /* synonym */ | |
302 | # define SSL_kEDH SSL_kDHE | |
303 | /* ECDH cert, RSA CA cert */ | |
304 | # define SSL_kECDHr 0x00000020L | |
305 | /* ECDH cert, ECDSA CA cert */ | |
306 | # define SSL_kECDHe 0x00000040L | |
307 | /* ephemeral ECDH */ | |
308 | # define SSL_kECDHE 0x00000080L | |
309 | /* synonym */ | |
310 | # define SSL_kEECDH SSL_kECDHE | |
311 | /* PSK */ | |
312 | # define SSL_kPSK 0x00000100L | |
313 | /* GOST key exchange */ | |
314 | # define SSL_kGOST 0x00000200L | |
315 | /* SRP */ | |
316 | # define SSL_kSRP 0x00000400L | |
317 | ||
318 | /* Bits for algorithm_auth (server authentication) */ | |
319 | /* RSA auth */ | |
320 | # define SSL_aRSA 0x00000001L | |
321 | /* DSS auth */ | |
322 | # define SSL_aDSS 0x00000002L | |
323 | /* no auth (i.e. use ADH or AECDH) */ | |
324 | # define SSL_aNULL 0x00000004L | |
325 | /* Fixed DH auth (kDHd or kDHr) */ | |
326 | # define SSL_aDH 0x00000008L | |
327 | /* Fixed ECDH auth (kECDHe or kECDHr) */ | |
328 | # define SSL_aECDH 0x00000010L | |
329 | /* ECDSA auth*/ | |
330 | # define SSL_aECDSA 0x00000040L | |
331 | /* PSK auth */ | |
332 | # define SSL_aPSK 0x00000080L | |
333 | /* GOST R 34.10-94 signature auth */ | |
334 | # define SSL_aGOST94 0x00000100L | |
335 | /* GOST R 34.10-2001 signature auth */ | |
336 | # define SSL_aGOST01 0x00000200L | |
337 | /* SRP auth */ | |
338 | # define SSL_aSRP 0x00000400L | |
339 | ||
340 | /* Bits for algorithm_enc (symmetric encryption) */ | |
341 | # define SSL_DES 0x00000001L | |
342 | # define SSL_3DES 0x00000002L | |
343 | # define SSL_RC4 0x00000004L | |
344 | # define SSL_RC2 0x00000008L | |
345 | # define SSL_IDEA 0x00000010L | |
346 | # define SSL_eNULL 0x00000020L | |
347 | # define SSL_AES128 0x00000040L | |
348 | # define SSL_AES256 0x00000080L | |
349 | # define SSL_CAMELLIA128 0x00000100L | |
350 | # define SSL_CAMELLIA256 0x00000200L | |
351 | # define SSL_eGOST2814789CNT 0x00000400L | |
352 | # define SSL_SEED 0x00000800L | |
353 | # define SSL_AES128GCM 0x00001000L | |
354 | # define SSL_AES256GCM 0x00002000L | |
355 | ||
356 | # define SSL_AES (SSL_AES128|SSL_AES256|SSL_AES128GCM|SSL_AES256GCM) | |
357 | # define SSL_CAMELLIA (SSL_CAMELLIA128|SSL_CAMELLIA256) | |
358 | ||
359 | /* Bits for algorithm_mac (symmetric authentication) */ | |
360 | ||
361 | # define SSL_MD5 0x00000001L | |
362 | # define SSL_SHA1 0x00000002L | |
363 | # define SSL_GOST94 0x00000004L | |
364 | # define SSL_GOST89MAC 0x00000008L | |
365 | # define SSL_SHA256 0x00000010L | |
366 | # define SSL_SHA384 0x00000020L | |
367 | /* Not a real MAC, just an indication it is part of cipher */ | |
368 | # define SSL_AEAD 0x00000040L | |
369 | ||
370 | /* Bits for algorithm_ssl (protocol version) */ | |
371 | # define SSL_SSLV3 0x00000002L | |
372 | # define SSL_TLSV1 SSL_SSLV3/* for now */ | |
373 | # define SSL_TLSV1_2 0x00000004L | |
374 | ||
375 | /* Bits for algorithm2 (handshake digests and other extra flags) */ | |
376 | ||
377 | # define SSL_HANDSHAKE_MAC_MD5 0x10 | |
378 | # define SSL_HANDSHAKE_MAC_SHA 0x20 | |
379 | # define SSL_HANDSHAKE_MAC_GOST94 0x40 | |
380 | # define SSL_HANDSHAKE_MAC_SHA256 0x80 | |
381 | # define SSL_HANDSHAKE_MAC_SHA384 0x100 | |
382 | # define SSL_HANDSHAKE_MAC_DEFAULT (SSL_HANDSHAKE_MAC_MD5 | SSL_HANDSHAKE_MAC_SHA) | |
383 | ||
384 | /* | |
385 | * When adding new digest in the ssl_ciph.c and increment SSM_MD_NUM_IDX make | |
386 | * sure to update this constant too | |
387 | */ | |
388 | # define SSL_MAX_DIGEST 6 | |
389 | ||
390 | # define TLS1_PRF_DGST_SHIFT 10 | |
391 | # define TLS1_PRF_MD5 (SSL_HANDSHAKE_MAC_MD5 << TLS1_PRF_DGST_SHIFT) | |
392 | # define TLS1_PRF_SHA1 (SSL_HANDSHAKE_MAC_SHA << TLS1_PRF_DGST_SHIFT) | |
393 | # define TLS1_PRF_SHA256 (SSL_HANDSHAKE_MAC_SHA256 << TLS1_PRF_DGST_SHIFT) | |
394 | # define TLS1_PRF_SHA384 (SSL_HANDSHAKE_MAC_SHA384 << TLS1_PRF_DGST_SHIFT) | |
395 | # define TLS1_PRF_GOST94 (SSL_HANDSHAKE_MAC_GOST94 << TLS1_PRF_DGST_SHIFT) | |
396 | # define TLS1_PRF (TLS1_PRF_MD5 | TLS1_PRF_SHA1) | |
397 | ||
398 | /* | |
399 | * Stream MAC for GOST ciphersuites from cryptopro draft (currently this also | |
400 | * goes into algorithm2) | |
401 | */ | |
402 | # define TLS1_STREAM_MAC 0x04 | |
403 | ||
404 | /* | |
405 | * Export and cipher strength information. For each cipher we have to decide | |
406 | * whether it is exportable or not. This information is likely to change | |
407 | * over time, since the export control rules are no static technical issue. | |
408 | * | |
409 | * Independent of the export flag the cipher strength is sorted into classes. | |
410 | * SSL_EXP40 was denoting the 40bit US export limit of past times, which now | |
411 | * is at 56bit (SSL_EXP56). If the exportable cipher class is going to change | |
412 | * again (eg. to 64bit) the use of "SSL_EXP*" becomes blurred even more, | |
413 | * since SSL_EXP64 could be similar to SSL_LOW. | |
414 | * For this reason SSL_MICRO and SSL_MINI macros are included to widen the | |
415 | * namespace of SSL_LOW-SSL_HIGH to lower values. As development of speed | |
416 | * and ciphers goes, another extension to SSL_SUPER and/or SSL_ULTRA would | |
417 | * be possible. | |
418 | */ | |
419 | # define SSL_EXP_MASK 0x00000003L | |
420 | # define SSL_STRONG_MASK 0x000001fcL | |
421 | ||
422 | # define SSL_NOT_EXP 0x00000001L | |
423 | # define SSL_EXPORT 0x00000002L | |
424 | ||
425 | # define SSL_STRONG_NONE 0x00000004L | |
426 | # define SSL_EXP40 0x00000008L | |
427 | # define SSL_MICRO (SSL_EXP40) | |
428 | # define SSL_EXP56 0x00000010L | |
429 | # define SSL_MINI (SSL_EXP56) | |
430 | # define SSL_LOW 0x00000020L | |
431 | # define SSL_MEDIUM 0x00000040L | |
432 | # define SSL_HIGH 0x00000080L | |
433 | # define SSL_FIPS 0x00000100L | |
434 | ||
435 | /* we have used 000001ff - 23 bits left to go */ | |
436 | ||
437 | /*- | |
438 | * Macros to check the export status and cipher strength for export ciphers. | |
439 | * Even though the macros for EXPORT and EXPORT40/56 have similar names, | |
440 | * their meaning is different: | |
441 | * *_EXPORT macros check the 'exportable' status. | |
442 | * *_EXPORT40/56 macros are used to check whether a certain cipher strength | |
443 | * is given. | |
444 | * Since the SSL_IS_EXPORT* and SSL_EXPORT* macros depend on the correct | |
445 | * algorithm structure element to be passed (algorithms, algo_strength) and no | |
446 | * typechecking can be done as they are all of type unsigned long, their | |
447 | * direct usage is discouraged. | |
448 | * Use the SSL_C_* macros instead. | |
449 | */ | |
450 | # define SSL_IS_EXPORT(a) ((a)&SSL_EXPORT) | |
451 | # define SSL_IS_EXPORT56(a) ((a)&SSL_EXP56) | |
452 | # define SSL_IS_EXPORT40(a) ((a)&SSL_EXP40) | |
453 | # define SSL_C_IS_EXPORT(c) SSL_IS_EXPORT((c)->algo_strength) | |
454 | # define SSL_C_IS_EXPORT56(c) SSL_IS_EXPORT56((c)->algo_strength) | |
455 | # define SSL_C_IS_EXPORT40(c) SSL_IS_EXPORT40((c)->algo_strength) | |
456 | ||
457 | # define SSL_EXPORT_KEYLENGTH(a,s) (SSL_IS_EXPORT40(s) ? 5 : \ | |
458 | (a) == SSL_DES ? 8 : 7) | |
459 | # define SSL_EXPORT_PKEYLENGTH(a) (SSL_IS_EXPORT40(a) ? 512 : 1024) | |
460 | # define SSL_C_EXPORT_KEYLENGTH(c) SSL_EXPORT_KEYLENGTH((c)->algorithm_enc, \ | |
461 | (c)->algo_strength) | |
462 | # define SSL_C_EXPORT_PKEYLENGTH(c) SSL_EXPORT_PKEYLENGTH((c)->algo_strength) | |
463 | ||
464 | /* Check if an SSL structure is using DTLS */ | |
465 | # define SSL_IS_DTLS(s) (s->method->ssl3_enc->enc_flags & SSL_ENC_FLAG_DTLS) | |
466 | /* See if we need explicit IV */ | |
467 | # define SSL_USE_EXPLICIT_IV(s) \ | |
468 | (s->method->ssl3_enc->enc_flags & SSL_ENC_FLAG_EXPLICIT_IV) | |
469 | /* | |
470 | * See if we use signature algorithms extension and signature algorithm | |
471 | * before signatures. | |
472 | */ | |
473 | # define SSL_USE_SIGALGS(s) \ | |
474 | (s->method->ssl3_enc->enc_flags & SSL_ENC_FLAG_SIGALGS) | |
475 | /* | |
476 | * Allow TLS 1.2 ciphersuites: applies to DTLS 1.2 as well as TLS 1.2: may | |
477 | * apply to others in future. | |
478 | */ | |
479 | # define SSL_USE_TLS1_2_CIPHERS(s) \ | |
480 | (s->method->ssl3_enc->enc_flags & SSL_ENC_FLAG_TLS1_2_CIPHERS) | |
481 | /* | |
482 | * Determine if a client can use TLS 1.2 ciphersuites: can't rely on method | |
483 | * flags because it may not be set to correct version yet. | |
484 | */ | |
485 | # define SSL_CLIENT_USE_TLS1_2_CIPHERS(s) \ | |
486 | ((SSL_IS_DTLS(s) && s->client_version <= DTLS1_2_VERSION) || \ | |
487 | (!SSL_IS_DTLS(s) && s->client_version >= TLS1_2_VERSION)) | |
488 | ||
489 | # ifdef TLSEXT_TYPE_encrypt_then_mac | |
490 | # define SSL_USE_ETM(s) (s->s3->flags & TLS1_FLAGS_ENCRYPT_THEN_MAC) | |
491 | # else | |
492 | # define SSL_USE_ETM(s) (0) | |
493 | # endif | |
494 | ||
495 | /* Mostly for SSLv3 */ | |
496 | # define SSL_PKEY_RSA_ENC 0 | |
497 | # define SSL_PKEY_RSA_SIGN 1 | |
498 | # define SSL_PKEY_DSA_SIGN 2 | |
499 | # define SSL_PKEY_DH_RSA 3 | |
500 | # define SSL_PKEY_DH_DSA 4 | |
501 | # define SSL_PKEY_ECC 5 | |
502 | # define SSL_PKEY_GOST94 6 | |
503 | # define SSL_PKEY_GOST01 7 | |
504 | # define SSL_PKEY_NUM 8 | |
505 | ||
506 | /*- | |
507 | * SSL_kRSA <- RSA_ENC | (RSA_TMP & RSA_SIGN) | | |
508 | * <- (EXPORT & (RSA_ENC | RSA_TMP) & RSA_SIGN) | |
509 | * SSL_kDH <- DH_ENC & (RSA_ENC | RSA_SIGN | DSA_SIGN) | |
510 | * SSL_kDHE <- RSA_ENC | RSA_SIGN | DSA_SIGN | |
511 | * SSL_aRSA <- RSA_ENC | RSA_SIGN | |
512 | * SSL_aDSS <- DSA_SIGN | |
513 | */ | |
514 | ||
515 | /*- | |
516 | #define CERT_INVALID 0 | |
517 | #define CERT_PUBLIC_KEY 1 | |
518 | #define CERT_PRIVATE_KEY 2 | |
519 | */ | |
520 | ||
521 | /* used to hold info on the particular ciphers used */ | |
522 | struct ssl_cipher_st { | |
523 | int valid; | |
524 | const char *name; /* text name */ | |
525 | unsigned long id; /* id, 4 bytes, first is version */ | |
526 | /* | |
527 | * changed in 0.9.9: these four used to be portions of a single value | |
528 | * 'algorithms' | |
529 | */ | |
530 | unsigned long algorithm_mkey; /* key exchange algorithm */ | |
531 | unsigned long algorithm_auth; /* server authentication */ | |
532 | unsigned long algorithm_enc; /* symmetric encryption */ | |
533 | unsigned long algorithm_mac; /* symmetric authentication */ | |
534 | unsigned long algorithm_ssl; /* (major) protocol version */ | |
535 | unsigned long algo_strength; /* strength and export flags */ | |
536 | unsigned long algorithm2; /* Extra flags */ | |
537 | int strength_bits; /* Number of bits really used */ | |
538 | int alg_bits; /* Number of bits for algorithm */ | |
539 | }; | |
540 | ||
541 | /* Used to hold functions for SSLv2 or SSLv3/TLSv1 functions */ | |
542 | struct ssl_method_st { | |
543 | int version; | |
544 | int (*ssl_new) (SSL *s); | |
545 | void (*ssl_clear) (SSL *s); | |
546 | void (*ssl_free) (SSL *s); | |
547 | int (*ssl_accept) (SSL *s); | |
548 | int (*ssl_connect) (SSL *s); | |
549 | int (*ssl_read) (SSL *s, void *buf, int len); | |
550 | int (*ssl_peek) (SSL *s, void *buf, int len); | |
551 | int (*ssl_write) (SSL *s, const void *buf, int len); | |
552 | int (*ssl_shutdown) (SSL *s); | |
553 | int (*ssl_renegotiate) (SSL *s); | |
554 | int (*ssl_renegotiate_check) (SSL *s); | |
555 | long (*ssl_get_message) (SSL *s, int st1, int stn, int mt, long | |
556 | max, int *ok); | |
557 | int (*ssl_read_bytes) (SSL *s, int type, unsigned char *buf, int len, | |
558 | int peek); | |
559 | int (*ssl_write_bytes) (SSL *s, int type, const void *buf_, int len); | |
560 | int (*ssl_dispatch_alert) (SSL *s); | |
561 | long (*ssl_ctrl) (SSL *s, int cmd, long larg, void *parg); | |
562 | long (*ssl_ctx_ctrl) (SSL_CTX *ctx, int cmd, long larg, void *parg); | |
563 | const SSL_CIPHER *(*get_cipher_by_char) (const unsigned char *ptr); | |
564 | int (*put_cipher_by_char) (const SSL_CIPHER *cipher, unsigned char *ptr); | |
565 | int (*ssl_pending) (const SSL *s); | |
566 | int (*num_ciphers) (void); | |
567 | const SSL_CIPHER *(*get_cipher) (unsigned ncipher); | |
568 | const struct ssl_method_st *(*get_ssl_method) (int version); | |
569 | long (*get_timeout) (void); | |
570 | const struct ssl3_enc_method *ssl3_enc; /* Extra SSLv3/TLS stuff */ | |
571 | int (*ssl_version) (void); | |
572 | long (*ssl_callback_ctrl) (SSL *s, int cb_id, void (*fp) (void)); | |
573 | long (*ssl_ctx_callback_ctrl) (SSL_CTX *s, int cb_id, void (*fp) (void)); | |
574 | }; | |
575 | ||
576 | /*- | |
577 | * Lets make this into an ASN.1 type structure as follows | |
578 | * SSL_SESSION_ID ::= SEQUENCE { | |
579 | * version INTEGER, -- structure version number | |
580 | * SSLversion INTEGER, -- SSL version number | |
581 | * Cipher OCTET STRING, -- the 3 byte cipher ID | |
582 | * Session_ID OCTET STRING, -- the Session ID | |
583 | * Master_key OCTET STRING, -- the master key | |
584 | * Key_Arg [ 0 ] IMPLICIT OCTET STRING, -- the optional Key argument | |
585 | * Time [ 1 ] EXPLICIT INTEGER, -- optional Start Time | |
586 | * Timeout [ 2 ] EXPLICIT INTEGER, -- optional Timeout ins seconds | |
587 | * Peer [ 3 ] EXPLICIT X509, -- optional Peer Certificate | |
588 | * Session_ID_context [ 4 ] EXPLICIT OCTET STRING, -- the Session ID context | |
589 | * Verify_result [ 5 ] EXPLICIT INTEGER, -- X509_V_... code for `Peer' | |
590 | * HostName [ 6 ] EXPLICIT OCTET STRING, -- optional HostName from servername TLS extension | |
591 | * PSK_identity_hint [ 7 ] EXPLICIT OCTET STRING, -- optional PSK identity hint | |
592 | * PSK_identity [ 8 ] EXPLICIT OCTET STRING, -- optional PSK identity | |
593 | * Ticket_lifetime_hint [9] EXPLICIT INTEGER, -- server's lifetime hint for session ticket | |
594 | * Ticket [10] EXPLICIT OCTET STRING, -- session ticket (clients only) | |
595 | * Compression_meth [11] EXPLICIT OCTET STRING, -- optional compression method | |
596 | * SRP_username [ 12 ] EXPLICIT OCTET STRING -- optional SRP username | |
597 | * flags [ 13 ] EXPLICIT INTEGER -- optional flags | |
598 | * } | |
599 | * Look in ssl/ssl_asn1.c for more details | |
600 | * I'm using EXPLICIT tags so I can read the damn things using asn1parse :-). | |
601 | */ | |
602 | struct ssl_session_st { | |
603 | int ssl_version; /* what ssl version session info is being | |
604 | * kept in here? */ | |
605 | int master_key_length; | |
606 | unsigned char master_key[SSL_MAX_MASTER_KEY_LENGTH]; | |
607 | /* session_id - valid? */ | |
608 | unsigned int session_id_length; | |
609 | unsigned char session_id[SSL_MAX_SSL_SESSION_ID_LENGTH]; | |
610 | /* | |
611 | * this is used to determine whether the session is being reused in the | |
612 | * appropriate context. It is up to the application to set this, via | |
613 | * SSL_new | |
614 | */ | |
615 | unsigned int sid_ctx_length; | |
616 | unsigned char sid_ctx[SSL_MAX_SID_CTX_LENGTH]; | |
617 | # ifndef OPENSSL_NO_PSK | |
618 | char *psk_identity_hint; | |
619 | char *psk_identity; | |
620 | # endif | |
621 | /* | |
622 | * Used to indicate that session resumption is not allowed. Applications | |
623 | * can also set this bit for a new session via not_resumable_session_cb | |
624 | * to disable session caching and tickets. | |
625 | */ | |
626 | int not_resumable; | |
627 | /* This is the cert and type for the other end. */ | |
628 | X509 *peer; | |
629 | int peer_type; | |
630 | /* Certificate chain of peer */ | |
631 | STACK_OF(X509) *peer_chain; | |
632 | /* | |
633 | * when app_verify_callback accepts a session where the peer's | |
634 | * certificate is not ok, we must remember the error for session reuse: | |
635 | */ | |
636 | long verify_result; /* only for servers */ | |
637 | int references; | |
638 | long timeout; | |
639 | long time; | |
640 | unsigned int compress_meth; /* Need to lookup the method */ | |
641 | const SSL_CIPHER *cipher; | |
642 | unsigned long cipher_id; /* when ASN.1 loaded, this needs to be used | |
643 | * to load the 'cipher' structure */ | |
644 | STACK_OF(SSL_CIPHER) *ciphers; /* shared ciphers? */ | |
645 | CRYPTO_EX_DATA ex_data; /* application specific data */ | |
646 | /* | |
647 | * These are used to make removal of session-ids more efficient and to | |
648 | * implement a maximum cache size. | |
649 | */ | |
650 | struct ssl_session_st *prev, *next; | |
651 | char *tlsext_hostname; | |
652 | # ifndef OPENSSL_NO_EC | |
653 | size_t tlsext_ecpointformatlist_length; | |
654 | unsigned char *tlsext_ecpointformatlist; /* peer's list */ | |
655 | size_t tlsext_ellipticcurvelist_length; | |
656 | unsigned char *tlsext_ellipticcurvelist; /* peer's list */ | |
657 | # endif /* OPENSSL_NO_EC */ | |
658 | /* RFC4507 info */ | |
659 | unsigned char *tlsext_tick; /* Session ticket */ | |
660 | size_t tlsext_ticklen; /* Session ticket length */ | |
661 | unsigned long tlsext_tick_lifetime_hint; /* Session lifetime hint in seconds */ | |
662 | # ifndef OPENSSL_NO_SRP | |
663 | char *srp_username; | |
664 | # endif | |
665 | long flags; | |
666 | }; | |
667 | ||
668 | /* Extended master secret support */ | |
669 | # define SSL_SESS_FLAG_EXTMS 0x1 | |
670 | ||
671 | ||
672 | # ifndef OPENSSL_NO_SRP | |
673 | ||
674 | typedef struct srp_ctx_st { | |
675 | /* param for all the callbacks */ | |
676 | void *SRP_cb_arg; | |
677 | /* set client Hello login callback */ | |
678 | int (*TLS_ext_srp_username_callback) (SSL *, int *, void *); | |
679 | /* set SRP N/g param callback for verification */ | |
680 | int (*SRP_verify_param_callback) (SSL *, void *); | |
681 | /* set SRP client passwd callback */ | |
682 | char *(*SRP_give_srp_client_pwd_callback) (SSL *, void *); | |
683 | char *login; | |
684 | BIGNUM *N, *g, *s, *B, *A; | |
685 | BIGNUM *a, *b, *v; | |
686 | char *info; | |
687 | int strength; | |
688 | unsigned long srp_Mask; | |
689 | } SRP_CTX; | |
690 | ||
691 | # endif | |
692 | ||
693 | typedef struct ssl_comp_st SSL_COMP; | |
694 | ||
695 | struct ssl_comp_st { | |
696 | int id; | |
697 | const char *name; | |
698 | COMP_METHOD *method; | |
699 | }; | |
700 | ||
701 | DECLARE_STACK_OF(SSL_COMP) | |
702 | DECLARE_LHASH_OF(SSL_SESSION); | |
703 | ||
704 | struct ssl_ctx_st { | |
705 | const SSL_METHOD *method; | |
706 | STACK_OF(SSL_CIPHER) *cipher_list; | |
707 | /* same as above but sorted for lookup */ | |
708 | STACK_OF(SSL_CIPHER) *cipher_list_by_id; | |
709 | struct x509_store_st /* X509_STORE */ *cert_store; | |
710 | LHASH_OF(SSL_SESSION) *sessions; | |
711 | /* | |
712 | * Most session-ids that will be cached, default is | |
713 | * SSL_SESSION_CACHE_MAX_SIZE_DEFAULT. 0 is unlimited. | |
714 | */ | |
715 | unsigned long session_cache_size; | |
716 | struct ssl_session_st *session_cache_head; | |
717 | struct ssl_session_st *session_cache_tail; | |
718 | /* | |
719 | * This can have one of 2 values, ored together, SSL_SESS_CACHE_CLIENT, | |
720 | * SSL_SESS_CACHE_SERVER, Default is SSL_SESSION_CACHE_SERVER, which | |
721 | * means only SSL_accept which cache SSL_SESSIONS. | |
722 | */ | |
723 | int session_cache_mode; | |
724 | /* | |
725 | * If timeout is not 0, it is the default timeout value set when | |
726 | * SSL_new() is called. This has been put in to make life easier to set | |
727 | * things up | |
728 | */ | |
729 | long session_timeout; | |
730 | /* | |
731 | * If this callback is not null, it will be called each time a session id | |
732 | * is added to the cache. If this function returns 1, it means that the | |
733 | * callback will do a SSL_SESSION_free() when it has finished using it. | |
734 | * Otherwise, on 0, it means the callback has finished with it. If | |
735 | * remove_session_cb is not null, it will be called when a session-id is | |
736 | * removed from the cache. After the call, OpenSSL will | |
737 | * SSL_SESSION_free() it. | |
738 | */ | |
739 | int (*new_session_cb) (struct ssl_st *ssl, SSL_SESSION *sess); | |
740 | void (*remove_session_cb) (struct ssl_ctx_st *ctx, SSL_SESSION *sess); | |
741 | SSL_SESSION *(*get_session_cb) (struct ssl_st *ssl, | |
742 | unsigned char *data, int len, int *copy); | |
743 | struct { | |
744 | int sess_connect; /* SSL new conn - started */ | |
745 | int sess_connect_renegotiate; /* SSL reneg - requested */ | |
746 | int sess_connect_good; /* SSL new conne/reneg - finished */ | |
747 | int sess_accept; /* SSL new accept - started */ | |
748 | int sess_accept_renegotiate; /* SSL reneg - requested */ | |
749 | int sess_accept_good; /* SSL accept/reneg - finished */ | |
750 | int sess_miss; /* session lookup misses */ | |
751 | int sess_timeout; /* reuse attempt on timeouted session */ | |
752 | int sess_cache_full; /* session removed due to full cache */ | |
753 | int sess_hit; /* session reuse actually done */ | |
754 | int sess_cb_hit; /* session-id that was not in the cache was | |
755 | * passed back via the callback. This | |
756 | * indicates that the application is | |
757 | * supplying session-id's from other | |
758 | * processes - spooky :-) */ | |
759 | } stats; | |
760 | ||
761 | int references; | |
762 | ||
763 | /* if defined, these override the X509_verify_cert() calls */ | |
764 | int (*app_verify_callback) (X509_STORE_CTX *, void *); | |
765 | void *app_verify_arg; | |
766 | /* | |
767 | * before OpenSSL 0.9.7, 'app_verify_arg' was ignored | |
768 | * ('app_verify_callback' was called with just one argument) | |
769 | */ | |
770 | ||
771 | /* Default password callback. */ | |
772 | pem_password_cb *default_passwd_callback; | |
773 | ||
774 | /* Default password callback user data. */ | |
775 | void *default_passwd_callback_userdata; | |
776 | ||
777 | /* get client cert callback */ | |
778 | int (*client_cert_cb) (SSL *ssl, X509 **x509, EVP_PKEY **pkey); | |
779 | ||
780 | /* cookie generate callback */ | |
781 | int (*app_gen_cookie_cb) (SSL *ssl, unsigned char *cookie, | |
782 | unsigned int *cookie_len); | |
783 | ||
784 | /* verify cookie callback */ | |
785 | int (*app_verify_cookie_cb) (SSL *ssl, unsigned char *cookie, | |
786 | unsigned int cookie_len); | |
787 | ||
788 | CRYPTO_EX_DATA ex_data; | |
789 | ||
790 | const EVP_MD *md5; /* For SSLv3/TLSv1 'ssl3-md5' */ | |
791 | const EVP_MD *sha1; /* For SSLv3/TLSv1 'ssl3->sha1' */ | |
792 | ||
793 | STACK_OF(X509) *extra_certs; | |
794 | STACK_OF(SSL_COMP) *comp_methods; /* stack of SSL_COMP, SSLv3/TLSv1 */ | |
795 | ||
796 | /* Default values used when no per-SSL value is defined follow */ | |
797 | ||
798 | /* used if SSL's info_callback is NULL */ | |
799 | void (*info_callback) (const SSL *ssl, int type, int val); | |
800 | ||
801 | /* what we put in client cert requests */ | |
802 | STACK_OF(X509_NAME) *client_CA; | |
803 | ||
804 | /* | |
805 | * Default values to use in SSL structures follow (these are copied by | |
806 | * SSL_new) | |
807 | */ | |
808 | ||
809 | unsigned long options; | |
810 | unsigned long mode; | |
811 | long max_cert_list; | |
812 | ||
813 | struct cert_st /* CERT */ *cert; | |
814 | int read_ahead; | |
815 | ||
816 | /* callback that allows applications to peek at protocol messages */ | |
817 | void (*msg_callback) (int write_p, int version, int content_type, | |
818 | const void *buf, size_t len, SSL *ssl, void *arg); | |
819 | void *msg_callback_arg; | |
820 | ||
821 | int verify_mode; | |
822 | unsigned int sid_ctx_length; | |
823 | unsigned char sid_ctx[SSL_MAX_SID_CTX_LENGTH]; | |
824 | /* called 'verify_callback' in the SSL */ | |
825 | int (*default_verify_callback) (int ok, X509_STORE_CTX *ctx); | |
826 | ||
827 | /* Default generate session ID callback. */ | |
828 | GEN_SESSION_CB generate_session_id; | |
829 | ||
830 | X509_VERIFY_PARAM *param; | |
831 | ||
832 | int quiet_shutdown; | |
833 | ||
834 | /* | |
835 | * Maximum amount of data to send in one fragment. actual record size can | |
836 | * be more than this due to padding and MAC overheads. | |
837 | */ | |
838 | unsigned int max_send_fragment; | |
839 | ||
840 | # ifndef OPENSSL_NO_ENGINE | |
841 | /* | |
842 | * Engine to pass requests for client certs to | |
843 | */ | |
844 | ENGINE *client_cert_engine; | |
845 | # endif | |
846 | ||
847 | /* TLS extensions servername callback */ | |
848 | int (*tlsext_servername_callback) (SSL *, int *, void *); | |
849 | void *tlsext_servername_arg; | |
850 | /* RFC 4507 session ticket keys */ | |
851 | unsigned char tlsext_tick_key_name[16]; | |
852 | unsigned char tlsext_tick_hmac_key[16]; | |
853 | unsigned char tlsext_tick_aes_key[16]; | |
854 | /* Callback to support customisation of ticket key setting */ | |
855 | int (*tlsext_ticket_key_cb) (SSL *ssl, | |
856 | unsigned char *name, unsigned char *iv, | |
857 | EVP_CIPHER_CTX *ectx, | |
858 | HMAC_CTX *hctx, int enc); | |
859 | ||
860 | /* certificate status request info */ | |
861 | /* Callback for status request */ | |
862 | int (*tlsext_status_cb) (SSL *ssl, void *arg); | |
863 | void *tlsext_status_arg; | |
864 | ||
865 | # ifndef OPENSSL_NO_PSK | |
866 | char *psk_identity_hint; | |
867 | unsigned int (*psk_client_callback) (SSL *ssl, const char *hint, | |
868 | char *identity, | |
869 | unsigned int max_identity_len, | |
870 | unsigned char *psk, | |
871 | unsigned int max_psk_len); | |
872 | unsigned int (*psk_server_callback) (SSL *ssl, const char *identity, | |
873 | unsigned char *psk, | |
874 | unsigned int max_psk_len); | |
875 | # endif | |
876 | ||
877 | # ifndef OPENSSL_NO_SRP | |
878 | SRP_CTX srp_ctx; /* ctx for SRP authentication */ | |
879 | # endif | |
880 | ||
881 | # ifndef OPENSSL_NO_NEXTPROTONEG | |
882 | /* Next protocol negotiation information */ | |
883 | /* (for experimental NPN extension). */ | |
884 | ||
885 | /* | |
886 | * For a server, this contains a callback function by which the set of | |
887 | * advertised protocols can be provided. | |
888 | */ | |
889 | int (*next_protos_advertised_cb) (SSL *s, const unsigned char **buf, | |
890 | unsigned int *len, void *arg); | |
891 | void *next_protos_advertised_cb_arg; | |
892 | /* | |
893 | * For a client, this contains a callback function that selects the next | |
894 | * protocol from the list provided by the server. | |
895 | */ | |
896 | int (*next_proto_select_cb) (SSL *s, unsigned char **out, | |
897 | unsigned char *outlen, | |
898 | const unsigned char *in, | |
899 | unsigned int inlen, void *arg); | |
900 | void *next_proto_select_cb_arg; | |
901 | # endif | |
902 | ||
903 | /* | |
904 | * ALPN information (we are in the process of transitioning from NPN to | |
905 | * ALPN.) | |
906 | */ | |
907 | ||
908 | /*- | |
909 | * For a server, this contains a callback function that allows the | |
910 | * server to select the protocol for the connection. | |
911 | * out: on successful return, this must point to the raw protocol | |
912 | * name (without the length prefix). | |
913 | * outlen: on successful return, this contains the length of |*out|. | |
914 | * in: points to the client's list of supported protocols in | |
915 | * wire-format. | |
916 | * inlen: the length of |in|. | |
917 | */ | |
918 | int (*alpn_select_cb) (SSL *s, | |
919 | const unsigned char **out, | |
920 | unsigned char *outlen, | |
921 | const unsigned char *in, | |
922 | unsigned int inlen, void *arg); | |
923 | void *alpn_select_cb_arg; | |
924 | ||
925 | /* | |
926 | * For a client, this contains the list of supported protocols in wire | |
927 | * format. | |
928 | */ | |
929 | unsigned char *alpn_client_proto_list; | |
930 | unsigned alpn_client_proto_list_len; | |
931 | ||
932 | /* SRTP profiles we are willing to do from RFC 5764 */ | |
933 | STACK_OF(SRTP_PROTECTION_PROFILE) *srtp_profiles; | |
934 | /* | |
935 | * Callback for disabling session caching and ticket support on a session | |
936 | * basis, depending on the chosen cipher. | |
937 | */ | |
938 | int (*not_resumable_session_cb) (SSL *ssl, int is_forward_secure); | |
939 | # ifndef OPENSSL_NO_EC | |
940 | /* EC extension values inherited by SSL structure */ | |
941 | size_t tlsext_ecpointformatlist_length; | |
942 | unsigned char *tlsext_ecpointformatlist; | |
943 | size_t tlsext_ellipticcurvelist_length; | |
944 | unsigned char *tlsext_ellipticcurvelist; | |
945 | # endif /* OPENSSL_NO_EC */ | |
946 | }; | |
947 | ||
948 | ||
949 | struct ssl_st { | |
950 | /* | |
951 | * protocol version (one of SSL2_VERSION, SSL3_VERSION, TLS1_VERSION, | |
952 | * DTLS1_VERSION) | |
953 | */ | |
954 | int version; | |
955 | /* SSL_ST_CONNECT or SSL_ST_ACCEPT */ | |
956 | int type; | |
957 | /* SSLv3 */ | |
958 | const SSL_METHOD *method; | |
959 | /* | |
960 | * There are 2 BIO's even though they are normally both the same. This | |
961 | * is so data can be read and written to different handlers | |
962 | */ | |
963 | /* used by SSL_read */ | |
964 | BIO *rbio; | |
965 | /* used by SSL_write */ | |
966 | BIO *wbio; | |
967 | /* used during session-id reuse to concatenate messages */ | |
968 | BIO *bbio; | |
969 | /* | |
970 | * This holds a variable that indicates what we were doing when a 0 or -1 | |
971 | * is returned. This is needed for non-blocking IO so we know what | |
972 | * request needs re-doing when in SSL_accept or SSL_connect | |
973 | */ | |
974 | int rwstate; | |
975 | /* true when we are actually in SSL_accept() or SSL_connect() */ | |
976 | int in_handshake; | |
977 | int (*handshake_func) (SSL *); | |
978 | /* | |
979 | * Imagine that here's a boolean member "init" that is switched as soon | |
980 | * as SSL_set_{accept/connect}_state is called for the first time, so | |
981 | * that "state" and "handshake_func" are properly initialized. But as | |
982 | * handshake_func is == 0 until then, we use this test instead of an | |
983 | * "init" member. | |
984 | */ | |
985 | /* are we the server side? - mostly used by SSL_clear */ | |
986 | int server; | |
987 | /* | |
988 | * Generate a new session or reuse an old one. | |
989 | * NB: For servers, the 'new' session may actually be a previously | |
990 | * cached session or even the previous session unless | |
991 | * SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION is set | |
992 | */ | |
993 | int new_session; | |
994 | /* don't send shutdown packets */ | |
995 | int quiet_shutdown; | |
996 | /* we have shut things down, 0x01 sent, 0x02 for received */ | |
997 | int shutdown; | |
998 | /* where we are */ | |
999 | int state; | |
1000 | BUF_MEM *init_buf; /* buffer used during init */ | |
1001 | void *init_msg; /* pointer to handshake message body, set by | |
1002 | * ssl3_get_message() */ | |
1003 | int init_num; /* amount read/written */ | |
1004 | int init_off; /* amount read/written */ | |
1005 | ||
1006 | struct ssl3_state_st *s3; /* SSLv3 variables */ | |
1007 | struct dtls1_state_st *d1; /* DTLSv1 variables */ | |
1008 | ||
1009 | /* callback that allows applications to peek at protocol messages */ | |
1010 | void (*msg_callback) (int write_p, int version, int content_type, | |
1011 | const void *buf, size_t len, SSL *ssl, void *arg); | |
1012 | void *msg_callback_arg; | |
1013 | int hit; /* reusing a previous session */ | |
1014 | X509_VERIFY_PARAM *param; | |
1015 | /* crypto */ | |
1016 | STACK_OF(SSL_CIPHER) *cipher_list; | |
1017 | STACK_OF(SSL_CIPHER) *cipher_list_by_id; | |
1018 | /* | |
1019 | * These are the ones being used, the ones in SSL_SESSION are the ones to | |
1020 | * be 'copied' into these ones | |
1021 | */ | |
1022 | int mac_flags; | |
1023 | EVP_CIPHER_CTX *enc_read_ctx; /* cryptographic state */ | |
1024 | EVP_MD_CTX *read_hash; /* used for mac generation */ | |
1025 | COMP_CTX *compress; /* compression */ | |
1026 | COMP_CTX *expand; /* uncompress */ | |
1027 | EVP_CIPHER_CTX *enc_write_ctx; /* cryptographic state */ | |
1028 | EVP_MD_CTX *write_hash; /* used for mac generation */ | |
1029 | /* session info */ | |
1030 | /* client cert? */ | |
1031 | /* This is used to hold the server certificate used */ | |
1032 | struct cert_st /* CERT */ *cert; | |
1033 | /* | |
1034 | * the session_id_context is used to ensure sessions are only reused in | |
1035 | * the appropriate context | |
1036 | */ | |
1037 | unsigned int sid_ctx_length; | |
1038 | unsigned char sid_ctx[SSL_MAX_SID_CTX_LENGTH]; | |
1039 | /* This can also be in the session once a session is established */ | |
1040 | SSL_SESSION *session; | |
1041 | /* Default generate session ID callback. */ | |
1042 | GEN_SESSION_CB generate_session_id; | |
1043 | /* Used in SSL3 */ | |
1044 | /* | |
1045 | * 0 don't care about verify failure. | |
1046 | * 1 fail if verify fails | |
1047 | */ | |
1048 | int verify_mode; | |
1049 | /* fail if callback returns 0 */ | |
1050 | int (*verify_callback) (int ok, X509_STORE_CTX *ctx); | |
1051 | /* optional informational callback */ | |
1052 | void (*info_callback) (const SSL *ssl, int type, int val); | |
1053 | /* error bytes to be written */ | |
1054 | int error; | |
1055 | /* actual code */ | |
1056 | int error_code; | |
1057 | # ifndef OPENSSL_NO_PSK | |
1058 | unsigned int (*psk_client_callback) (SSL *ssl, const char *hint, | |
1059 | char *identity, | |
1060 | unsigned int max_identity_len, | |
1061 | unsigned char *psk, | |
1062 | unsigned int max_psk_len); | |
1063 | unsigned int (*psk_server_callback) (SSL *ssl, const char *identity, | |
1064 | unsigned char *psk, | |
1065 | unsigned int max_psk_len); | |
1066 | # endif | |
1067 | SSL_CTX *ctx; | |
1068 | /* | |
1069 | * set this flag to 1 and a sleep(1) is put into all SSL_read() and | |
1070 | * SSL_write() calls, good for nbio debuging :-) | |
1071 | */ | |
1072 | int debug; | |
1073 | /* extra application data */ | |
1074 | long verify_result; | |
1075 | CRYPTO_EX_DATA ex_data; | |
1076 | /* for server side, keep the list of CA_dn we can use */ | |
1077 | STACK_OF(X509_NAME) *client_CA; | |
1078 | int references; | |
1079 | /* protocol behaviour */ | |
1080 | unsigned long options; | |
1081 | /* API behaviour */ | |
1082 | unsigned long mode; | |
1083 | long max_cert_list; | |
1084 | int first_packet; | |
1085 | /* what was passed, used for SSLv3/TLS rollback check */ | |
1086 | int client_version; | |
1087 | unsigned int max_send_fragment; | |
1088 | ||
1089 | /* TLS extension debug callback */ | |
1090 | void (*tlsext_debug_cb) (SSL *s, int client_server, int type, | |
1091 | unsigned char *data, int len, void *arg); | |
1092 | void *tlsext_debug_arg; | |
1093 | char *tlsext_hostname; | |
1094 | /*- | |
1095 | * no further mod of servername | |
1096 | * 0 : call the servername extension callback. | |
1097 | * 1 : prepare 2, allow last ack just after in server callback. | |
1098 | * 2 : don't call servername callback, no ack in server hello | |
1099 | */ | |
1100 | int servername_done; | |
1101 | /* certificate status request info */ | |
1102 | /* Status type or -1 if no status type */ | |
1103 | int tlsext_status_type; | |
1104 | /* Expect OCSP CertificateStatus message */ | |
1105 | int tlsext_status_expected; | |
1106 | /* OCSP status request only */ | |
1107 | STACK_OF(OCSP_RESPID) *tlsext_ocsp_ids; | |
1108 | X509_EXTENSIONS *tlsext_ocsp_exts; | |
1109 | /* OCSP response received or to be sent */ | |
1110 | unsigned char *tlsext_ocsp_resp; | |
1111 | int tlsext_ocsp_resplen; | |
1112 | /* RFC4507 session ticket expected to be received or sent */ | |
1113 | int tlsext_ticket_expected; | |
1114 | # ifndef OPENSSL_NO_EC | |
1115 | size_t tlsext_ecpointformatlist_length; | |
1116 | /* our list */ | |
1117 | unsigned char *tlsext_ecpointformatlist; | |
1118 | size_t tlsext_ellipticcurvelist_length; | |
1119 | /* our list */ | |
1120 | unsigned char *tlsext_ellipticcurvelist; | |
1121 | # endif /* OPENSSL_NO_EC */ | |
1122 | /* TLS Session Ticket extension override */ | |
1123 | TLS_SESSION_TICKET_EXT *tlsext_session_ticket; | |
1124 | /* TLS Session Ticket extension callback */ | |
1125 | tls_session_ticket_ext_cb_fn tls_session_ticket_ext_cb; | |
1126 | void *tls_session_ticket_ext_cb_arg; | |
1127 | /* TLS pre-shared secret session resumption */ | |
1128 | tls_session_secret_cb_fn tls_session_secret_cb; | |
1129 | void *tls_session_secret_cb_arg; | |
1130 | SSL_CTX *initial_ctx; /* initial ctx, used to store sessions */ | |
1131 | # ifndef OPENSSL_NO_NEXTPROTONEG | |
1132 | /* | |
1133 | * Next protocol negotiation. For the client, this is the protocol that | |
1134 | * we sent in NextProtocol and is set when handling ServerHello | |
1135 | * extensions. For a server, this is the client's selected_protocol from | |
1136 | * NextProtocol and is set when handling the NextProtocol message, before | |
1137 | * the Finished message. | |
1138 | */ | |
1139 | unsigned char *next_proto_negotiated; | |
1140 | unsigned char next_proto_negotiated_len; | |
1141 | # endif | |
1142 | # define session_ctx initial_ctx | |
1143 | /* What we'll do */ | |
1144 | STACK_OF(SRTP_PROTECTION_PROFILE) *srtp_profiles; | |
1145 | /* What's been chosen */ | |
1146 | SRTP_PROTECTION_PROFILE *srtp_profile; | |
1147 | /*- | |
1148 | * Is use of the Heartbeat extension negotiated? | |
1149 | * 0: disabled | |
1150 | * 1: enabled | |
1151 | * 2: enabled, but not allowed to send Requests | |
1152 | */ | |
1153 | unsigned int tlsext_heartbeat; | |
1154 | /* Indicates if a HeartbeatRequest is in flight */ | |
1155 | unsigned int tlsext_hb_pending; | |
1156 | /* HeartbeatRequest sequence number */ | |
1157 | unsigned int tlsext_hb_seq; | |
1158 | /* | |
1159 | * For a client, this contains the list of supported protocols in wire | |
1160 | * format. | |
1161 | */ | |
1162 | unsigned char *alpn_client_proto_list; | |
1163 | unsigned alpn_client_proto_list_len; | |
1164 | ||
1165 | /*- | |
1166 | * 1 if we are renegotiating. | |
1167 | * 2 if we are a server and are inside a handshake | |
1168 | * (i.e. not just sending a HelloRequest) | |
1169 | */ | |
1170 | int renegotiate; | |
1171 | # ifndef OPENSSL_NO_SRP | |
1172 | /* ctx for SRP authentication */ | |
1173 | SRP_CTX srp_ctx; | |
1174 | # endif | |
1175 | /* | |
1176 | * Callback for disabling session caching and ticket support on a session | |
1177 | * basis, depending on the chosen cipher. | |
1178 | */ | |
1179 | int (*not_resumable_session_cb) (SSL *ssl, int is_forward_secure); | |
1180 | ||
1181 | RECORD_LAYER rlayer; | |
1182 | }; | |
1183 | ||
1184 | ||
1185 | typedef struct ssl3_state_st { | |
1186 | long flags; | |
1187 | int delay_buf_pop_ret; | |
1188 | int read_mac_secret_size; | |
1189 | unsigned char read_mac_secret[EVP_MAX_MD_SIZE]; | |
1190 | int write_mac_secret_size; | |
1191 | unsigned char write_mac_secret[EVP_MAX_MD_SIZE]; | |
1192 | unsigned char server_random[SSL3_RANDOM_SIZE]; | |
1193 | unsigned char client_random[SSL3_RANDOM_SIZE]; | |
1194 | /* flags for countermeasure against known-IV weakness */ | |
1195 | int need_empty_fragments; | |
1196 | int empty_fragment_done; | |
1197 | /* The value of 'extra' when the buffers were initialized */ | |
1198 | int init_extra; | |
1199 | /* used during startup, digest all incoming/outgoing packets */ | |
1200 | BIO *handshake_buffer; | |
1201 | /* | |
1202 | * When set of handshake digests is determined, buffer is hashed and | |
1203 | * freed and MD_CTX-es for all required digests are stored in this array | |
1204 | */ | |
1205 | EVP_MD_CTX **handshake_dgst; | |
1206 | /* | |
1207 | * Set whenever an expected ChangeCipherSpec message is processed. | |
1208 | * Unset when the peer's Finished message is received. | |
1209 | * Unexpected ChangeCipherSpec messages trigger a fatal alert. | |
1210 | */ | |
1211 | int change_cipher_spec; | |
1212 | int warn_alert; | |
1213 | int fatal_alert; | |
1214 | /* | |
1215 | * we allow one fatal and one warning alert to be outstanding, send close | |
1216 | * alert via the warning alert | |
1217 | */ | |
1218 | int alert_dispatch; | |
1219 | unsigned char send_alert[2]; | |
1220 | /* | |
1221 | * This flag is set when we should renegotiate ASAP, basically when there | |
1222 | * is no more data in the read or write buffers | |
1223 | */ | |
1224 | int renegotiate; | |
1225 | int total_renegotiations; | |
1226 | int num_renegotiations; | |
1227 | int in_read_app_data; | |
1228 | struct { | |
1229 | /* actually only needs to be 16+20 */ | |
1230 | unsigned char cert_verify_md[EVP_MAX_MD_SIZE * 2]; | |
1231 | /* actually only need to be 16+20 for SSLv3 and 12 for TLS */ | |
1232 | unsigned char finish_md[EVP_MAX_MD_SIZE * 2]; | |
1233 | int finish_md_len; | |
1234 | unsigned char peer_finish_md[EVP_MAX_MD_SIZE * 2]; | |
1235 | int peer_finish_md_len; | |
1236 | unsigned long message_size; | |
1237 | int message_type; | |
1238 | /* used to hold the new cipher we are going to use */ | |
1239 | const SSL_CIPHER *new_cipher; | |
1240 | # ifndef OPENSSL_NO_DH | |
1241 | DH *dh; | |
1242 | # endif | |
1243 | # ifndef OPENSSL_NO_EC | |
1244 | EC_KEY *ecdh; /* holds short lived ECDH key */ | |
1245 | # endif | |
1246 | /* used when SSL_ST_FLUSH_DATA is entered */ | |
1247 | int next_state; | |
1248 | int reuse_message; | |
1249 | /* used for certificate requests */ | |
1250 | int cert_req; | |
1251 | int ctype_num; | |
1252 | char ctype[SSL3_CT_NUMBER]; | |
1253 | STACK_OF(X509_NAME) *ca_names; | |
1254 | int use_rsa_tmp; | |
1255 | int key_block_length; | |
1256 | unsigned char *key_block; | |
1257 | const EVP_CIPHER *new_sym_enc; | |
1258 | const EVP_MD *new_hash; | |
1259 | int new_mac_pkey_type; | |
1260 | int new_mac_secret_size; | |
1261 | # ifndef OPENSSL_NO_COMP | |
1262 | const SSL_COMP *new_compression; | |
1263 | # else | |
1264 | char *new_compression; | |
1265 | # endif | |
1266 | int cert_request; | |
1267 | /* Raw values of the cipher list from a client */ | |
1268 | unsigned char *ciphers_raw; | |
1269 | size_t ciphers_rawlen; | |
1270 | /* Temporary storage for premaster secret */ | |
1271 | unsigned char *pms; | |
1272 | size_t pmslen; | |
1273 | /* | |
1274 | * signature algorithms peer reports: e.g. supported signature | |
1275 | * algorithms extension for server or as part of a certificate | |
1276 | * request for client. | |
1277 | */ | |
1278 | unsigned char *peer_sigalgs; | |
1279 | /* Size of above array */ | |
1280 | size_t peer_sigalgslen; | |
1281 | /* Digest peer uses for signing */ | |
1282 | const EVP_MD *peer_md; | |
1283 | /* Array of digests used for signing */ | |
1284 | const EVP_MD *md[SSL_PKEY_NUM]; | |
1285 | /* | |
1286 | * Set if corresponding CERT_PKEY can be used with current | |
1287 | * SSL session: e.g. appropriate curve, signature algorithms etc. | |
1288 | * If zero it can't be used at all. | |
1289 | */ | |
1290 | int valid_flags[SSL_PKEY_NUM]; | |
1291 | /* | |
1292 | * For servers the following masks are for the key and auth algorithms | |
1293 | * that are supported by the certs below. For clients they are masks of | |
1294 | * *disabled* algorithms based on the current session. | |
1295 | */ | |
1296 | unsigned long mask_k; | |
1297 | unsigned long mask_a; | |
1298 | unsigned long export_mask_k; | |
1299 | unsigned long export_mask_a; | |
1300 | /* Client only */ | |
1301 | unsigned long mask_ssl; | |
1302 | } tmp; | |
1303 | ||
1304 | /* Connection binding to prevent renegotiation attacks */ | |
1305 | unsigned char previous_client_finished[EVP_MAX_MD_SIZE]; | |
1306 | unsigned char previous_client_finished_len; | |
1307 | unsigned char previous_server_finished[EVP_MAX_MD_SIZE]; | |
1308 | unsigned char previous_server_finished_len; | |
1309 | int send_connection_binding; /* TODOEKR */ | |
1310 | ||
1311 | # ifndef OPENSSL_NO_NEXTPROTONEG | |
1312 | /* | |
1313 | * Set if we saw the Next Protocol Negotiation extension from our peer. | |
1314 | */ | |
1315 | int next_proto_neg_seen; | |
1316 | # endif | |
1317 | ||
1318 | /* | |
1319 | * ALPN information (we are in the process of transitioning from NPN to | |
1320 | * ALPN.) | |
1321 | */ | |
1322 | ||
1323 | /* | |
1324 | * In a server these point to the selected ALPN protocol after the | |
1325 | * ClientHello has been processed. In a client these contain the protocol | |
1326 | * that the server selected once the ServerHello has been processed. | |
1327 | */ | |
1328 | unsigned char *alpn_selected; | |
1329 | unsigned alpn_selected_len; | |
1330 | ||
1331 | # ifndef OPENSSL_NO_EC | |
1332 | /* | |
1333 | * This is set to true if we believe that this is a version of Safari | |
1334 | * running on OS X 10.6 or newer. We wish to know this because Safari on | |
1335 | * 10.8 .. 10.8.3 has broken ECDHE-ECDSA support. | |
1336 | */ | |
1337 | char is_probably_safari; | |
1338 | # endif /* !OPENSSL_NO_EC */ | |
1339 | ||
1340 | /* For clients: peer temporary key */ | |
1341 | # ifndef OPENSSL_NO_RSA | |
1342 | RSA *peer_rsa_tmp; | |
1343 | # endif | |
1344 | # ifndef OPENSSL_NO_DH | |
1345 | DH *peer_dh_tmp; | |
1346 | # endif | |
1347 | # ifndef OPENSSL_NO_EC | |
1348 | EC_KEY *peer_ecdh_tmp; | |
1349 | # endif | |
1350 | ||
1351 | } SSL3_STATE; | |
1352 | ||
1353 | ||
1354 | /* DTLS structures */ | |
1355 | ||
1356 | # ifndef OPENSSL_NO_SCTP | |
1357 | # define DTLS1_SCTP_AUTH_LABEL "EXPORTER_DTLS_OVER_SCTP" | |
1358 | # endif | |
1359 | ||
1360 | /* Max MTU overhead we know about so far is 40 for IPv6 + 8 for UDP */ | |
1361 | # define DTLS1_MAX_MTU_OVERHEAD 48 | |
1362 | ||
1363 | struct dtls1_retransmit_state { | |
1364 | EVP_CIPHER_CTX *enc_write_ctx; /* cryptographic state */ | |
1365 | EVP_MD_CTX *write_hash; /* used for mac generation */ | |
1366 | COMP_CTX *compress; /* compression */ | |
1367 | SSL_SESSION *session; | |
1368 | unsigned short epoch; | |
1369 | }; | |
1370 | ||
1371 | struct hm_header_st { | |
1372 | unsigned char type; | |
1373 | unsigned long msg_len; | |
1374 | unsigned short seq; | |
1375 | unsigned long frag_off; | |
1376 | unsigned long frag_len; | |
1377 | unsigned int is_ccs; | |
1378 | struct dtls1_retransmit_state saved_retransmit_state; | |
1379 | }; | |
1380 | ||
1381 | struct dtls1_timeout_st { | |
1382 | /* Number of read timeouts so far */ | |
1383 | unsigned int read_timeouts; | |
1384 | /* Number of write timeouts so far */ | |
1385 | unsigned int write_timeouts; | |
1386 | /* Number of alerts received so far */ | |
1387 | unsigned int num_alerts; | |
1388 | }; | |
1389 | ||
1390 | typedef struct hm_fragment_st { | |
1391 | struct hm_header_st msg_header; | |
1392 | unsigned char *fragment; | |
1393 | unsigned char *reassembly; | |
1394 | } hm_fragment; | |
1395 | ||
1396 | typedef struct dtls1_state_st { | |
1397 | unsigned int send_cookie; | |
1398 | unsigned char cookie[DTLS1_COOKIE_LENGTH]; | |
1399 | unsigned char rcvd_cookie[DTLS1_COOKIE_LENGTH]; | |
1400 | unsigned int cookie_len; | |
1401 | ||
1402 | /* handshake message numbers */ | |
1403 | unsigned short handshake_write_seq; | |
1404 | unsigned short next_handshake_write_seq; | |
1405 | unsigned short handshake_read_seq; | |
1406 | ||
1407 | /* Buffered handshake messages */ | |
1408 | pqueue buffered_messages; | |
1409 | /* Buffered (sent) handshake records */ | |
1410 | pqueue sent_messages; | |
1411 | ||
1412 | /* Is set when listening for new connections with dtls1_listen() */ | |
1413 | unsigned int listen; | |
1414 | unsigned int link_mtu; /* max on-the-wire DTLS packet size */ | |
1415 | unsigned int mtu; /* max DTLS packet size */ | |
1416 | struct hm_header_st w_msg_hdr; | |
1417 | struct hm_header_st r_msg_hdr; | |
1418 | struct dtls1_timeout_st timeout; | |
1419 | /* | |
1420 | * Indicates when the last handshake msg or heartbeat sent will timeout | |
1421 | */ | |
1422 | struct timeval next_timeout; | |
1423 | /* Timeout duration */ | |
1424 | unsigned short timeout_duration; | |
1425 | ||
1426 | unsigned int retransmitting; | |
1427 | /* | |
1428 | * Set when the handshake is ready to process peer's ChangeCipherSpec message. | |
1429 | * Cleared after the message has been processed. | |
1430 | */ | |
1431 | unsigned int change_cipher_spec_ok; | |
1432 | # ifndef OPENSSL_NO_SCTP | |
1433 | /* used when SSL_ST_XX_FLUSH is entered */ | |
1434 | int next_state; | |
1435 | int shutdown_received; | |
1436 | # endif | |
1437 | } DTLS1_STATE; | |
1438 | ||
1439 | ||
1440 | ||
1441 | # ifndef OPENSSL_NO_EC | |
1442 | /* | |
1443 | * From ECC-TLS draft, used in encoding the curve type in ECParameters | |
1444 | */ | |
1445 | # define EXPLICIT_PRIME_CURVE_TYPE 1 | |
1446 | # define EXPLICIT_CHAR2_CURVE_TYPE 2 | |
1447 | # define NAMED_CURVE_TYPE 3 | |
1448 | # endif /* OPENSSL_NO_EC */ | |
1449 | ||
1450 | typedef struct cert_pkey_st { | |
1451 | X509 *x509; | |
1452 | EVP_PKEY *privatekey; | |
1453 | /* Chain for this certificate */ | |
1454 | STACK_OF(X509) *chain; | |
1455 | ||
1456 | /*- | |
1457 | * serverinfo data for this certificate. The data is in TLS Extension | |
1458 | * wire format, specifically it's a series of records like: | |
1459 | * uint16_t extension_type; // (RFC 5246, 7.4.1.4, Extension) | |
1460 | * uint16_t length; | |
1461 | * uint8_t data[length]; | |
1462 | */ | |
1463 | unsigned char *serverinfo; | |
1464 | size_t serverinfo_length; | |
1465 | } CERT_PKEY; | |
1466 | /* Retrieve Suite B flags */ | |
1467 | # define tls1_suiteb(s) (s->cert->cert_flags & SSL_CERT_FLAG_SUITEB_128_LOS) | |
1468 | /* Uses to check strict mode: suite B modes are always strict */ | |
1469 | # define SSL_CERT_FLAGS_CHECK_TLS_STRICT \ | |
1470 | (SSL_CERT_FLAG_SUITEB_128_LOS|SSL_CERT_FLAG_TLS_STRICT) | |
1471 | ||
1472 | typedef struct { | |
1473 | unsigned short ext_type; | |
1474 | /* | |
1475 | * Per-connection flags relating to this extension type: not used if | |
1476 | * part of an SSL_CTX structure. | |
1477 | */ | |
1478 | unsigned short ext_flags; | |
1479 | custom_ext_add_cb add_cb; | |
1480 | custom_ext_free_cb free_cb; | |
1481 | void *add_arg; | |
1482 | custom_ext_parse_cb parse_cb; | |
1483 | void *parse_arg; | |
1484 | } custom_ext_method; | |
1485 | ||
1486 | /* ext_flags values */ | |
1487 | ||
1488 | /* | |
1489 | * Indicates an extension has been received. Used to check for unsolicited or | |
1490 | * duplicate extensions. | |
1491 | */ | |
1492 | # define SSL_EXT_FLAG_RECEIVED 0x1 | |
1493 | /* | |
1494 | * Indicates an extension has been sent: used to enable sending of | |
1495 | * corresponding ServerHello extension. | |
1496 | */ | |
1497 | # define SSL_EXT_FLAG_SENT 0x2 | |
1498 | ||
1499 | typedef struct { | |
1500 | custom_ext_method *meths; | |
1501 | size_t meths_count; | |
1502 | } custom_ext_methods; | |
1503 | ||
1504 | typedef struct cert_st { | |
1505 | /* Current active set */ | |
1506 | /* | |
1507 | * ALWAYS points to an element of the pkeys array | |
1508 | * Probably it would make more sense to store | |
1509 | * an index, not a pointer. | |
1510 | */ | |
1511 | CERT_PKEY *key; | |
1512 | # ifndef OPENSSL_NO_RSA | |
1513 | RSA *rsa_tmp; | |
1514 | RSA *(*rsa_tmp_cb) (SSL *ssl, int is_export, int keysize); | |
1515 | # endif | |
1516 | # ifndef OPENSSL_NO_DH | |
1517 | DH *dh_tmp; | |
1518 | DH *(*dh_tmp_cb) (SSL *ssl, int is_export, int keysize); | |
1519 | int dh_tmp_auto; | |
1520 | # endif | |
1521 | # ifndef OPENSSL_NO_EC | |
1522 | EC_KEY *ecdh_tmp; | |
1523 | /* Callback for generating ephemeral ECDH keys */ | |
1524 | EC_KEY *(*ecdh_tmp_cb) (SSL *ssl, int is_export, int keysize); | |
1525 | /* Select ECDH parameters automatically */ | |
1526 | int ecdh_tmp_auto; | |
1527 | # endif | |
1528 | /* Flags related to certificates */ | |
1529 | unsigned int cert_flags; | |
1530 | CERT_PKEY pkeys[SSL_PKEY_NUM]; | |
1531 | /* | |
1532 | * Certificate types (received or sent) in certificate request message. | |
1533 | * On receive this is only set if number of certificate types exceeds | |
1534 | * SSL3_CT_NUMBER. | |
1535 | */ | |
1536 | unsigned char *ctypes; | |
1537 | size_t ctype_num; | |
1538 | /* | |
1539 | * suppported signature algorithms. When set on a client this is sent in | |
1540 | * the client hello as the supported signature algorithms extension. For | |
1541 | * servers it represents the signature algorithms we are willing to use. | |
1542 | */ | |
1543 | unsigned char *conf_sigalgs; | |
1544 | /* Size of above array */ | |
1545 | size_t conf_sigalgslen; | |
1546 | /* | |
1547 | * Client authentication signature algorithms, if not set then uses | |
1548 | * conf_sigalgs. On servers these will be the signature algorithms sent | |
1549 | * to the client in a cerificate request for TLS 1.2. On a client this | |
1550 | * represents the signature algortithms we are willing to use for client | |
1551 | * authentication. | |
1552 | */ | |
1553 | unsigned char *client_sigalgs; | |
1554 | /* Size of above array */ | |
1555 | size_t client_sigalgslen; | |
1556 | /* | |
1557 | * Signature algorithms shared by client and server: cached because these | |
1558 | * are used most often. | |
1559 | */ | |
1560 | TLS_SIGALGS *shared_sigalgs; | |
1561 | size_t shared_sigalgslen; | |
1562 | /* | |
1563 | * Certificate setup callback: if set is called whenever a certificate | |
1564 | * may be required (client or server). the callback can then examine any | |
1565 | * appropriate parameters and setup any certificates required. This | |
1566 | * allows advanced applications to select certificates on the fly: for | |
1567 | * example based on supported signature algorithms or curves. | |
1568 | */ | |
1569 | int (*cert_cb) (SSL *ssl, void *arg); | |
1570 | void *cert_cb_arg; | |
1571 | /* | |
1572 | * Optional X509_STORE for chain building or certificate validation If | |
1573 | * NULL the parent SSL_CTX store is used instead. | |
1574 | */ | |
1575 | X509_STORE *chain_store; | |
1576 | X509_STORE *verify_store; | |
1577 | /* Custom extension methods for server and client */ | |
1578 | custom_ext_methods cli_ext; | |
1579 | custom_ext_methods srv_ext; | |
1580 | /* Security callback */ | |
1581 | int (*sec_cb) (SSL *s, SSL_CTX *ctx, int op, int bits, int nid, | |
1582 | void *other, void *ex); | |
1583 | /* Security level */ | |
1584 | int sec_level; | |
1585 | void *sec_ex; | |
1586 | int references; /* >1 only if SSL_copy_session_id is used */ | |
1587 | } CERT; | |
1588 | ||
1589 | /* Structure containing decoded values of signature algorithms extension */ | |
1590 | struct tls_sigalgs_st { | |
1591 | /* NID of hash algorithm */ | |
1592 | int hash_nid; | |
1593 | /* NID of signature algorithm */ | |
1594 | int sign_nid; | |
1595 | /* Combined hash and signature NID */ | |
1596 | int signandhash_nid; | |
1597 | /* Raw values used in extension */ | |
1598 | unsigned char rsign; | |
1599 | unsigned char rhash; | |
1600 | }; | |
1601 | ||
1602 | /* | |
1603 | * #define MAC_DEBUG | |
1604 | */ | |
1605 | ||
1606 | /* | |
1607 | * #define ERR_DEBUG | |
1608 | */ | |
1609 | /* | |
1610 | * #define ABORT_DEBUG | |
1611 | */ | |
1612 | /* | |
1613 | * #define PKT_DEBUG 1 | |
1614 | */ | |
1615 | /* | |
1616 | * #define DES_DEBUG | |
1617 | */ | |
1618 | /* | |
1619 | * #define DES_OFB_DEBUG | |
1620 | */ | |
1621 | /* | |
1622 | * #define SSL_DEBUG | |
1623 | */ | |
1624 | /* | |
1625 | * #define RSA_DEBUG | |
1626 | */ | |
1627 | /* | |
1628 | * #define IDEA_DEBUG | |
1629 | */ | |
1630 | ||
1631 | # define FP_ICC (int (*)(const void *,const void *)) | |
1632 | # define ssl_put_cipher_by_char(ssl,ciph,ptr) \ | |
1633 | ((ssl)->method->put_cipher_by_char((ciph),(ptr))) | |
1634 | ||
1635 | /* | |
1636 | * This is for the SSLv3/TLSv1.0 differences in crypto/hash stuff It is a bit | |
1637 | * of a mess of functions, but hell, think of it as an opaque structure :-) | |
1638 | */ | |
1639 | typedef struct ssl3_enc_method { | |
1640 | int (*enc) (SSL *, int); | |
1641 | int (*mac) (SSL *, unsigned char *, int); | |
1642 | int (*setup_key_block) (SSL *); | |
1643 | int (*generate_master_secret) (SSL *, unsigned char *, unsigned char *, | |
1644 | int); | |
1645 | int (*change_cipher_state) (SSL *, int); | |
1646 | int (*final_finish_mac) (SSL *, const char *, int, unsigned char *); | |
1647 | int finish_mac_length; | |
1648 | int (*cert_verify_mac) (SSL *, int, unsigned char *); | |
1649 | const char *client_finished_label; | |
1650 | int client_finished_label_len; | |
1651 | const char *server_finished_label; | |
1652 | int server_finished_label_len; | |
1653 | int (*alert_value) (int); | |
1654 | int (*export_keying_material) (SSL *, unsigned char *, size_t, | |
1655 | const char *, size_t, | |
1656 | const unsigned char *, size_t, | |
1657 | int use_context); | |
1658 | /* Various flags indicating protocol version requirements */ | |
1659 | unsigned int enc_flags; | |
1660 | /* Handshake header length */ | |
1661 | unsigned int hhlen; | |
1662 | /* Set the handshake header */ | |
1663 | int (*set_handshake_header) (SSL *s, int type, unsigned long len); | |
1664 | /* Write out handshake message */ | |
1665 | int (*do_write) (SSL *s); | |
1666 | } SSL3_ENC_METHOD; | |
1667 | ||
1668 | # define SSL_HM_HEADER_LENGTH(s) s->method->ssl3_enc->hhlen | |
1669 | # define ssl_handshake_start(s) \ | |
1670 | (((unsigned char *)s->init_buf->data) + s->method->ssl3_enc->hhlen) | |
1671 | # define ssl_set_handshake_header(s, htype, len) \ | |
1672 | s->method->ssl3_enc->set_handshake_header(s, htype, len) | |
1673 | # define ssl_do_write(s) s->method->ssl3_enc->do_write(s) | |
1674 | ||
1675 | /* Values for enc_flags */ | |
1676 | ||
1677 | /* Uses explicit IV for CBC mode */ | |
1678 | # define SSL_ENC_FLAG_EXPLICIT_IV 0x1 | |
1679 | /* Uses signature algorithms extension */ | |
1680 | # define SSL_ENC_FLAG_SIGALGS 0x2 | |
1681 | /* Uses SHA256 default PRF */ | |
1682 | # define SSL_ENC_FLAG_SHA256_PRF 0x4 | |
1683 | /* Is DTLS */ | |
1684 | # define SSL_ENC_FLAG_DTLS 0x8 | |
1685 | /* | |
1686 | * Allow TLS 1.2 ciphersuites: applies to DTLS 1.2 as well as TLS 1.2: may | |
1687 | * apply to others in future. | |
1688 | */ | |
1689 | # define SSL_ENC_FLAG_TLS1_2_CIPHERS 0x10 | |
1690 | ||
1691 | # ifndef OPENSSL_NO_COMP | |
1692 | /* Used for holding the relevant compression methods loaded into SSL_CTX */ | |
1693 | typedef struct ssl3_comp_st { | |
1694 | int comp_id; /* The identifier byte for this compression | |
1695 | * type */ | |
1696 | char *name; /* Text name used for the compression type */ | |
1697 | COMP_METHOD *method; /* The method :-) */ | |
1698 | } SSL3_COMP; | |
1699 | # endif | |
1700 | ||
1701 | extern SSL3_ENC_METHOD ssl3_undef_enc_method; | |
1702 | OPENSSL_EXTERN const SSL_CIPHER ssl3_ciphers[]; | |
1703 | ||
1704 | SSL_METHOD *ssl_bad_method(int ver); | |
1705 | ||
1706 | extern const SSL3_ENC_METHOD TLSv1_enc_data; | |
1707 | extern const SSL3_ENC_METHOD TLSv1_1_enc_data; | |
1708 | extern const SSL3_ENC_METHOD TLSv1_2_enc_data; | |
1709 | extern const SSL3_ENC_METHOD SSLv3_enc_data; | |
1710 | extern const SSL3_ENC_METHOD DTLSv1_enc_data; | |
1711 | extern const SSL3_ENC_METHOD DTLSv1_2_enc_data; | |
1712 | ||
1713 | # define IMPLEMENT_tls_meth_func(version, func_name, s_accept, s_connect, \ | |
1714 | s_get_meth, enc_data) \ | |
1715 | const SSL_METHOD *func_name(void) \ | |
1716 | { \ | |
1717 | static const SSL_METHOD func_name##_data= { \ | |
1718 | version, \ | |
1719 | tls1_new, \ | |
1720 | tls1_clear, \ | |
1721 | tls1_free, \ | |
1722 | s_accept, \ | |
1723 | s_connect, \ | |
1724 | ssl3_read, \ | |
1725 | ssl3_peek, \ | |
1726 | ssl3_write, \ | |
1727 | ssl3_shutdown, \ | |
1728 | ssl3_renegotiate, \ | |
1729 | ssl3_renegotiate_check, \ | |
1730 | ssl3_get_message, \ | |
1731 | ssl3_read_bytes, \ | |
1732 | ssl3_write_bytes, \ | |
1733 | ssl3_dispatch_alert, \ | |
1734 | ssl3_ctrl, \ | |
1735 | ssl3_ctx_ctrl, \ | |
1736 | ssl3_get_cipher_by_char, \ | |
1737 | ssl3_put_cipher_by_char, \ | |
1738 | ssl3_pending, \ | |
1739 | ssl3_num_ciphers, \ | |
1740 | ssl3_get_cipher, \ | |
1741 | s_get_meth, \ | |
1742 | tls1_default_timeout, \ | |
1743 | &enc_data, \ | |
1744 | ssl_undefined_void_function, \ | |
1745 | ssl3_callback_ctrl, \ | |
1746 | ssl3_ctx_callback_ctrl, \ | |
1747 | }; \ | |
1748 | return &func_name##_data; \ | |
1749 | } | |
1750 | ||
1751 | # define IMPLEMENT_ssl3_meth_func(func_name, s_accept, s_connect, s_get_meth) \ | |
1752 | const SSL_METHOD *func_name(void) \ | |
1753 | { \ | |
1754 | static const SSL_METHOD func_name##_data= { \ | |
1755 | SSL3_VERSION, \ | |
1756 | ssl3_new, \ | |
1757 | ssl3_clear, \ | |
1758 | ssl3_free, \ | |
1759 | s_accept, \ | |
1760 | s_connect, \ | |
1761 | ssl3_read, \ | |
1762 | ssl3_peek, \ | |
1763 | ssl3_write, \ | |
1764 | ssl3_shutdown, \ | |
1765 | ssl3_renegotiate, \ | |
1766 | ssl3_renegotiate_check, \ | |
1767 | ssl3_get_message, \ | |
1768 | ssl3_read_bytes, \ | |
1769 | ssl3_write_bytes, \ | |
1770 | ssl3_dispatch_alert, \ | |
1771 | ssl3_ctrl, \ | |
1772 | ssl3_ctx_ctrl, \ | |
1773 | ssl3_get_cipher_by_char, \ | |
1774 | ssl3_put_cipher_by_char, \ | |
1775 | ssl3_pending, \ | |
1776 | ssl3_num_ciphers, \ | |
1777 | ssl3_get_cipher, \ | |
1778 | s_get_meth, \ | |
1779 | ssl3_default_timeout, \ | |
1780 | &SSLv3_enc_data, \ | |
1781 | ssl_undefined_void_function, \ | |
1782 | ssl3_callback_ctrl, \ | |
1783 | ssl3_ctx_callback_ctrl, \ | |
1784 | }; \ | |
1785 | return &func_name##_data; \ | |
1786 | } | |
1787 | ||
1788 | # define IMPLEMENT_dtls1_meth_func(version, func_name, s_accept, s_connect, \ | |
1789 | s_get_meth, enc_data) \ | |
1790 | const SSL_METHOD *func_name(void) \ | |
1791 | { \ | |
1792 | static const SSL_METHOD func_name##_data= { \ | |
1793 | version, \ | |
1794 | dtls1_new, \ | |
1795 | dtls1_clear, \ | |
1796 | dtls1_free, \ | |
1797 | s_accept, \ | |
1798 | s_connect, \ | |
1799 | ssl3_read, \ | |
1800 | ssl3_peek, \ | |
1801 | ssl3_write, \ | |
1802 | dtls1_shutdown, \ | |
1803 | ssl3_renegotiate, \ | |
1804 | ssl3_renegotiate_check, \ | |
1805 | dtls1_get_message, \ | |
1806 | dtls1_read_bytes, \ | |
1807 | dtls1_write_app_data_bytes, \ | |
1808 | dtls1_dispatch_alert, \ | |
1809 | dtls1_ctrl, \ | |
1810 | ssl3_ctx_ctrl, \ | |
1811 | ssl3_get_cipher_by_char, \ | |
1812 | ssl3_put_cipher_by_char, \ | |
1813 | ssl3_pending, \ | |
1814 | ssl3_num_ciphers, \ | |
1815 | dtls1_get_cipher, \ | |
1816 | s_get_meth, \ | |
1817 | dtls1_default_timeout, \ | |
1818 | &enc_data, \ | |
1819 | ssl_undefined_void_function, \ | |
1820 | ssl3_callback_ctrl, \ | |
1821 | ssl3_ctx_callback_ctrl, \ | |
1822 | }; \ | |
1823 | return &func_name##_data; \ | |
1824 | } | |
1825 | ||
1826 | struct openssl_ssl_test_functions { | |
1827 | int (*p_ssl_init_wbio_buffer) (SSL *s, int push); | |
1828 | int (*p_ssl3_setup_buffers) (SSL *s); | |
1829 | int (*p_tls1_process_heartbeat) (SSL *s, | |
1830 | unsigned char *p, unsigned int length); | |
1831 | int (*p_dtls1_process_heartbeat) (SSL *s, | |
1832 | unsigned char *p, unsigned int length); | |
1833 | }; | |
1834 | ||
1835 | # ifndef OPENSSL_UNIT_TEST | |
1836 | ||
1837 | void ssl_clear_cipher_ctx(SSL *s); | |
1838 | int ssl_clear_bad_session(SSL *s); | |
1839 | __owur CERT *ssl_cert_new(void); | |
1840 | __owur CERT *ssl_cert_dup(CERT *cert); | |
1841 | void ssl_cert_clear_certs(CERT *c); | |
1842 | void ssl_cert_free(CERT *c); | |
1843 | __owur int ssl_get_new_session(SSL *s, int session); | |
1844 | __owur int ssl_get_prev_session(SSL *s, unsigned char *session, int len, | |
1845 | const unsigned char *limit); | |
1846 | __owur SSL_SESSION *ssl_session_dup(SSL_SESSION *src, int ticket); | |
1847 | __owur int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b); | |
1848 | DECLARE_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER, SSL_CIPHER, ssl_cipher_id); | |
1849 | __owur int ssl_cipher_ptr_id_cmp(const SSL_CIPHER *const *ap, | |
1850 | const SSL_CIPHER *const *bp); | |
1851 | __owur STACK_OF(SSL_CIPHER) *ssl_create_cipher_list(const SSL_METHOD *meth, | |
1852 | STACK_OF(SSL_CIPHER) **pref, | |
1853 | STACK_OF(SSL_CIPHER) **sorted, | |
1854 | const char *rule_str, CERT *c); | |
1855 | void ssl_update_cache(SSL *s, int mode); | |
1856 | __owur int ssl_cipher_get_evp(const SSL_SESSION *s, const EVP_CIPHER **enc, | |
1857 | const EVP_MD **md, int *mac_pkey_type, | |
1858 | int *mac_secret_size, SSL_COMP **comp, int use_etm); | |
1859 | __owur int ssl_get_handshake_digest(int i, long *mask, const EVP_MD **md); | |
1860 | __owur int ssl_cipher_get_cert_index(const SSL_CIPHER *c); | |
1861 | __owur const SSL_CIPHER *ssl_get_cipher_by_char(SSL *ssl, const unsigned char *ptr); | |
1862 | __owur int ssl_cert_set0_chain(SSL *s, SSL_CTX *ctx, STACK_OF(X509) *chain); | |
1863 | __owur int ssl_cert_set1_chain(SSL *s, SSL_CTX *ctx, STACK_OF(X509) *chain); | |
1864 | __owur int ssl_cert_add0_chain_cert(SSL *s, SSL_CTX *ctx, X509 *x); | |
1865 | __owur int ssl_cert_add1_chain_cert(SSL *s, SSL_CTX *ctx, X509 *x); | |
1866 | __owur int ssl_cert_select_current(CERT *c, X509 *x); | |
1867 | __owur int ssl_cert_set_current(CERT *c, long arg); | |
1868 | __owur X509 *ssl_cert_get0_next_certificate(CERT *c, int first); | |
1869 | void ssl_cert_set_cert_cb(CERT *c, int (*cb) (SSL *ssl, void *arg), | |
1870 | void *arg); | |
1871 | ||
1872 | __owur int ssl_verify_cert_chain(SSL *s, STACK_OF(X509) *sk); | |
1873 | __owur int ssl_add_cert_chain(SSL *s, CERT_PKEY *cpk, unsigned long *l); | |
1874 | __owur int ssl_build_cert_chain(SSL *s, SSL_CTX *ctx, int flags); | |
1875 | __owur int ssl_cert_set_cert_store(CERT *c, X509_STORE *store, int chain, int ref); | |
1876 | ||
1877 | __owur int ssl_security(SSL *s, int op, int bits, int nid, void *other); | |
1878 | __owur int ssl_ctx_security(SSL_CTX *ctx, int op, int bits, int nid, void *other); | |
1879 | ||
1880 | int ssl_undefined_function(SSL *s); | |
1881 | __owur int ssl_undefined_void_function(void); | |
1882 | __owur int ssl_undefined_const_function(const SSL *s); | |
1883 | __owur CERT_PKEY *ssl_get_server_send_pkey(SSL *s); | |
1884 | __owur int ssl_get_server_cert_serverinfo(SSL *s, const unsigned char **serverinfo, | |
1885 | size_t *serverinfo_length); | |
1886 | __owur EVP_PKEY *ssl_get_sign_pkey(SSL *s, const SSL_CIPHER *c, const EVP_MD **pmd); | |
1887 | __owur int ssl_cert_type(X509 *x, EVP_PKEY *pkey); | |
1888 | void ssl_set_masks(SSL *s, const SSL_CIPHER *cipher); | |
1889 | __owur STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s); | |
1890 | __owur int ssl_verify_alarm_type(long type); | |
1891 | void ssl_load_ciphers(void); | |
1892 | __owur int ssl_fill_hello_random(SSL *s, int server, unsigned char *field, int len); | |
1893 | ||
1894 | __owur const SSL_CIPHER *ssl3_get_cipher_by_char(const unsigned char *p); | |
1895 | __owur int ssl3_put_cipher_by_char(const SSL_CIPHER *c, unsigned char *p); | |
1896 | void ssl3_init_finished_mac(SSL *s); | |
1897 | __owur int ssl3_send_server_certificate(SSL *s); | |
1898 | __owur int ssl3_send_newsession_ticket(SSL *s); | |
1899 | __owur int ssl3_send_cert_status(SSL *s); | |
1900 | __owur int ssl3_get_finished(SSL *s, int state_a, int state_b); | |
1901 | __owur int ssl3_setup_key_block(SSL *s); | |
1902 | __owur int ssl3_send_change_cipher_spec(SSL *s, int state_a, int state_b); | |
1903 | __owur int ssl3_change_cipher_state(SSL *s, int which); | |
1904 | void ssl3_cleanup_key_block(SSL *s); | |
1905 | __owur int ssl3_do_write(SSL *s, int type); | |
1906 | int ssl3_send_alert(SSL *s, int level, int desc); | |
1907 | __owur int ssl3_generate_master_secret(SSL *s, unsigned char *out, | |
1908 | unsigned char *p, int len); | |
1909 | __owur int ssl3_get_req_cert_type(SSL *s, unsigned char *p); | |
1910 | __owur long ssl3_get_message(SSL *s, int st1, int stn, int mt, long max, int *ok); | |
1911 | __owur int ssl3_send_finished(SSL *s, int a, int b, const char *sender, int slen); | |
1912 | __owur int ssl3_num_ciphers(void); | |
1913 | __owur const SSL_CIPHER *ssl3_get_cipher(unsigned int u); | |
1914 | int ssl3_renegotiate(SSL *ssl); | |
1915 | int ssl3_renegotiate_check(SSL *ssl); | |
1916 | __owur int ssl3_dispatch_alert(SSL *s); | |
1917 | __owur int ssl3_final_finish_mac(SSL *s, const char *sender, int slen, | |
1918 | unsigned char *p); | |
1919 | __owur int ssl3_cert_verify_mac(SSL *s, int md_nid, unsigned char *p); | |
1920 | void ssl3_finish_mac(SSL *s, const unsigned char *buf, int len); | |
1921 | void ssl3_free_digest_list(SSL *s); | |
1922 | __owur unsigned long ssl3_output_cert_chain(SSL *s, CERT_PKEY *cpk); | |
1923 | __owur SSL_CIPHER *ssl3_choose_cipher(SSL *ssl, STACK_OF(SSL_CIPHER) *clnt, | |
1924 | STACK_OF(SSL_CIPHER) *srvr); | |
1925 | __owur int ssl3_digest_cached_records(SSL *s); | |
1926 | __owur int ssl3_new(SSL *s); | |
1927 | void ssl3_free(SSL *s); | |
1928 | __owur int ssl3_accept(SSL *s); | |
1929 | __owur int ssl3_connect(SSL *s); | |
1930 | __owur int ssl3_read(SSL *s, void *buf, int len); | |
1931 | __owur int ssl3_peek(SSL *s, void *buf, int len); | |
1932 | __owur int ssl3_write(SSL *s, const void *buf, int len); | |
1933 | __owur int ssl3_shutdown(SSL *s); | |
1934 | void ssl3_clear(SSL *s); | |
1935 | __owur long ssl3_ctrl(SSL *s, int cmd, long larg, void *parg); | |
1936 | __owur long ssl3_ctx_ctrl(SSL_CTX *s, int cmd, long larg, void *parg); | |
1937 | __owur long ssl3_callback_ctrl(SSL *s, int cmd, void (*fp) (void)); | |
1938 | __owur long ssl3_ctx_callback_ctrl(SSL_CTX *s, int cmd, void (*fp) (void)); | |
1939 | ||
1940 | __owur int ssl3_do_change_cipher_spec(SSL *ssl); | |
1941 | __owur long ssl3_default_timeout(void); | |
1942 | ||
1943 | __owur int ssl3_set_handshake_header(SSL *s, int htype, unsigned long len); | |
1944 | __owur int ssl3_handshake_write(SSL *s); | |
1945 | ||
1946 | __owur int ssl_allow_compression(SSL *s); | |
1947 | ||
1948 | __owur long tls1_default_timeout(void); | |
1949 | __owur int dtls1_do_write(SSL *s, int type); | |
1950 | void dtls1_set_message_header(SSL *s, | |
1951 | unsigned char *p, unsigned char mt, | |
1952 | unsigned long len, | |
1953 | unsigned long frag_off, | |
1954 | unsigned long frag_len); | |
1955 | ||
1956 | __owur int dtls1_write_app_data_bytes(SSL *s, int type, const void *buf, int len); | |
1957 | ||
1958 | __owur int dtls1_send_change_cipher_spec(SSL *s, int a, int b); | |
1959 | __owur int dtls1_read_failed(SSL *s, int code); | |
1960 | __owur int dtls1_buffer_message(SSL *s, int ccs); | |
1961 | __owur int dtls1_retransmit_message(SSL *s, unsigned short seq, | |
1962 | unsigned long frag_off, int *found); | |
1963 | __owur int dtls1_get_queue_priority(unsigned short seq, int is_ccs); | |
1964 | int dtls1_retransmit_buffered_messages(SSL *s); | |
1965 | void dtls1_clear_record_buffer(SSL *s); | |
1966 | void dtls1_get_message_header(unsigned char *data, | |
1967 | struct hm_header_st *msg_hdr); | |
1968 | __owur long dtls1_default_timeout(void); | |
1969 | __owur struct timeval *dtls1_get_timeout(SSL *s, struct timeval *timeleft); | |
1970 | __owur int dtls1_check_timeout_num(SSL *s); | |
1971 | __owur int dtls1_handle_timeout(SSL *s); | |
1972 | __owur const SSL_CIPHER *dtls1_get_cipher(unsigned int u); | |
1973 | void dtls1_start_timer(SSL *s); | |
1974 | void dtls1_stop_timer(SSL *s); | |
1975 | __owur int dtls1_is_timer_expired(SSL *s); | |
1976 | void dtls1_double_timeout(SSL *s); | |
1977 | __owur int dtls1_send_newsession_ticket(SSL *s); | |
1978 | __owur unsigned int dtls1_min_mtu(SSL *s); | |
1979 | __owur unsigned int dtls1_link_min_mtu(void); | |
1980 | void dtls1_hm_fragment_free(hm_fragment *frag); | |
1981 | ||
1982 | /* some client-only functions */ | |
1983 | __owur int ssl3_client_hello(SSL *s); | |
1984 | __owur int ssl3_get_server_hello(SSL *s); | |
1985 | __owur int ssl3_get_certificate_request(SSL *s); | |
1986 | __owur int ssl3_get_new_session_ticket(SSL *s); | |
1987 | __owur int ssl3_get_cert_status(SSL *s); | |
1988 | __owur int ssl3_get_server_done(SSL *s); | |
1989 | __owur int ssl3_send_client_verify(SSL *s); | |
1990 | __owur int ssl3_send_client_certificate(SSL *s); | |
1991 | __owur int ssl_do_client_cert_cb(SSL *s, X509 **px509, EVP_PKEY **ppkey); | |
1992 | __owur int ssl3_send_client_key_exchange(SSL *s); | |
1993 | __owur int ssl3_get_key_exchange(SSL *s); | |
1994 | __owur int ssl3_get_server_certificate(SSL *s); | |
1995 | __owur int ssl3_check_cert_and_algorithm(SSL *s); | |
1996 | # ifndef OPENSSL_NO_NEXTPROTONEG | |
1997 | __owur int ssl3_send_next_proto(SSL *s); | |
1998 | # endif | |
1999 | ||
2000 | int dtls1_client_hello(SSL *s); | |
2001 | ||
2002 | /* some server-only functions */ | |
2003 | __owur int ssl3_get_client_hello(SSL *s); | |
2004 | __owur int ssl3_send_server_hello(SSL *s); | |
2005 | __owur int ssl3_send_hello_request(SSL *s); | |
2006 | __owur int ssl3_send_server_key_exchange(SSL *s); | |
2007 | __owur int ssl3_send_certificate_request(SSL *s); | |
2008 | __owur int ssl3_send_server_done(SSL *s); | |
2009 | __owur int ssl3_get_client_certificate(SSL *s); | |
2010 | __owur int ssl3_get_client_key_exchange(SSL *s); | |
2011 | __owur int ssl3_get_cert_verify(SSL *s); | |
2012 | # ifndef OPENSSL_NO_NEXTPROTONEG | |
2013 | __owur int ssl3_get_next_proto(SSL *s); | |
2014 | # endif | |
2015 | ||
2016 | __owur int tls1_new(SSL *s); | |
2017 | void tls1_free(SSL *s); | |
2018 | void tls1_clear(SSL *s); | |
2019 | long tls1_ctrl(SSL *s, int cmd, long larg, void *parg); | |
2020 | long tls1_callback_ctrl(SSL *s, int cmd, void (*fp) (void)); | |
2021 | ||
2022 | __owur int dtls1_new(SSL *s); | |
2023 | __owur int dtls1_accept(SSL *s); | |
2024 | __owur int dtls1_connect(SSL *s); | |
2025 | void dtls1_free(SSL *s); | |
2026 | void dtls1_clear(SSL *s); | |
2027 | long dtls1_ctrl(SSL *s, int cmd, long larg, void *parg); | |
2028 | __owur int dtls1_shutdown(SSL *s); | |
2029 | ||
2030 | __owur long dtls1_get_message(SSL *s, int st1, int stn, int mt, long max, int *ok); | |
2031 | __owur int dtls1_dispatch_alert(SSL *s); | |
2032 | ||
2033 | __owur int ssl_init_wbio_buffer(SSL *s, int push); | |
2034 | void ssl_free_wbio_buffer(SSL *s); | |
2035 | ||
2036 | __owur int tls1_change_cipher_state(SSL *s, int which); | |
2037 | __owur int tls1_setup_key_block(SSL *s); | |
2038 | __owur int tls1_final_finish_mac(SSL *s, | |
2039 | const char *str, int slen, unsigned char *p); | |
2040 | __owur int tls1_cert_verify_mac(SSL *s, int md_nid, unsigned char *p); | |
2041 | __owur int tls1_generate_master_secret(SSL *s, unsigned char *out, | |
2042 | unsigned char *p, int len); | |
2043 | __owur int tls1_export_keying_material(SSL *s, unsigned char *out, size_t olen, | |
2044 | const char *label, size_t llen, | |
2045 | const unsigned char *p, size_t plen, | |
2046 | int use_context); | |
2047 | __owur int tls1_alert_code(int code); | |
2048 | __owur int ssl3_alert_code(int code); | |
2049 | __owur int ssl_ok(SSL *s); | |
2050 | ||
2051 | # ifndef OPENSSL_NO_EC | |
2052 | __owur int ssl_check_srvr_ecc_cert_and_alg(X509 *x, SSL *s); | |
2053 | # endif | |
2054 | ||
2055 | SSL_COMP *ssl3_comp_find(STACK_OF(SSL_COMP) *sk, int n); | |
2056 | ||
2057 | # ifndef OPENSSL_NO_EC | |
2058 | __owur int tls1_ec_curve_id2nid(int curve_id); | |
2059 | __owur int tls1_ec_nid2curve_id(int nid); | |
2060 | __owur int tls1_check_curve(SSL *s, const unsigned char *p, size_t len); | |
2061 | __owur int tls1_shared_curve(SSL *s, int nmatch); | |
2062 | __owur int tls1_set_curves(unsigned char **pext, size_t *pextlen, | |
2063 | int *curves, size_t ncurves); | |
2064 | __owur int tls1_set_curves_list(unsigned char **pext, size_t *pextlen, | |
2065 | const char *str); | |
2066 | __owur int tls1_check_ec_tmp_key(SSL *s, unsigned long id); | |
2067 | # endif /* OPENSSL_NO_EC */ | |
2068 | ||
2069 | __owur int tls1_shared_list(SSL *s, | |
2070 | const unsigned char *l1, size_t l1len, | |
2071 | const unsigned char *l2, size_t l2len, int nmatch); | |
2072 | __owur unsigned char *ssl_add_clienthello_tlsext(SSL *s, unsigned char *buf, | |
2073 | unsigned char *limit, int *al); | |
2074 | __owur unsigned char *ssl_add_serverhello_tlsext(SSL *s, unsigned char *buf, | |
2075 | unsigned char *limit, int *al); | |
2076 | __owur int ssl_parse_clienthello_tlsext(SSL *s, unsigned char **data, | |
2077 | unsigned char *d, int n); | |
2078 | __owur int tls1_set_server_sigalgs(SSL *s); | |
2079 | __owur int ssl_check_clienthello_tlsext_late(SSL *s); | |
2080 | __owur int ssl_parse_serverhello_tlsext(SSL *s, unsigned char **data, | |
2081 | unsigned char *d, int n); | |
2082 | __owur int ssl_prepare_clienthello_tlsext(SSL *s); | |
2083 | __owur int ssl_prepare_serverhello_tlsext(SSL *s); | |
2084 | ||
2085 | # ifndef OPENSSL_NO_HEARTBEATS | |
2086 | __owur int tls1_heartbeat(SSL *s); | |
2087 | __owur int dtls1_heartbeat(SSL *s); | |
2088 | __owur int tls1_process_heartbeat(SSL *s, unsigned char *p, unsigned int length); | |
2089 | __owur int dtls1_process_heartbeat(SSL *s, unsigned char *p, unsigned int length); | |
2090 | # endif | |
2091 | ||
2092 | __owur int tls1_process_ticket(SSL *s, unsigned char *session_id, int len, | |
2093 | const unsigned char *limit, SSL_SESSION **ret); | |
2094 | ||
2095 | __owur int tls12_get_sigandhash(unsigned char *p, const EVP_PKEY *pk, | |
2096 | const EVP_MD *md); | |
2097 | __owur int tls12_get_sigid(const EVP_PKEY *pk); | |
2098 | __owur const EVP_MD *tls12_get_hash(unsigned char hash_alg); | |
2099 | void ssl_set_sig_mask(unsigned long *pmask_a, SSL *s, int op); | |
2100 | ||
2101 | __owur int tls1_set_sigalgs_list(CERT *c, const char *str, int client); | |
2102 | __owur int tls1_set_sigalgs(CERT *c, const int *salg, size_t salglen, int client); | |
2103 | int tls1_check_chain(SSL *s, X509 *x, EVP_PKEY *pk, STACK_OF(X509) *chain, | |
2104 | int idx); | |
2105 | void tls1_set_cert_validity(SSL *s); | |
2106 | ||
2107 | # ifndef OPENSSL_NO_DH | |
2108 | __owur DH *ssl_get_auto_dh(SSL *s); | |
2109 | # endif | |
2110 | ||
2111 | __owur int ssl_security_cert(SSL *s, SSL_CTX *ctx, X509 *x, int vfy, int is_ee); | |
2112 | __owur int ssl_security_cert_chain(SSL *s, STACK_OF(X509) *sk, X509 *ex, int vfy); | |
2113 | ||
2114 | __owur EVP_MD_CTX *ssl_replace_hash(EVP_MD_CTX **hash, const EVP_MD *md); | |
2115 | void ssl_clear_hash_ctx(EVP_MD_CTX **hash); | |
2116 | __owur int ssl_add_serverhello_renegotiate_ext(SSL *s, unsigned char *p, int *len, | |
2117 | int maxlen); | |
2118 | __owur int ssl_parse_serverhello_renegotiate_ext(SSL *s, unsigned char *d, int len, | |
2119 | int *al); | |
2120 | __owur int ssl_add_clienthello_renegotiate_ext(SSL *s, unsigned char *p, int *len, | |
2121 | int maxlen); | |
2122 | __owur int ssl_parse_clienthello_renegotiate_ext(SSL *s, unsigned char *d, int len, | |
2123 | int *al); | |
2124 | __owur long ssl_get_algorithm2(SSL *s); | |
2125 | __owur size_t tls12_copy_sigalgs(SSL *s, unsigned char *out, | |
2126 | const unsigned char *psig, size_t psiglen); | |
2127 | __owur int tls1_save_sigalgs(SSL *s, const unsigned char *data, int dsize); | |
2128 | __owur int tls1_process_sigalgs(SSL *s); | |
2129 | __owur size_t tls12_get_psigalgs(SSL *s, const unsigned char **psigs); | |
2130 | __owur int tls12_check_peer_sigalg(const EVP_MD **pmd, SSL *s, | |
2131 | const unsigned char *sig, EVP_PKEY *pkey); | |
2132 | void ssl_set_client_disabled(SSL *s); | |
2133 | __owur int ssl_cipher_disabled(SSL *s, const SSL_CIPHER *c, int op); | |
2134 | ||
2135 | __owur int ssl_add_clienthello_use_srtp_ext(SSL *s, unsigned char *p, int *len, | |
2136 | int maxlen); | |
2137 | __owur int ssl_parse_clienthello_use_srtp_ext(SSL *s, unsigned char *d, int len, | |
2138 | int *al); | |
2139 | __owur int ssl_add_serverhello_use_srtp_ext(SSL *s, unsigned char *p, int *len, | |
2140 | int maxlen); | |
2141 | __owur int ssl_parse_serverhello_use_srtp_ext(SSL *s, unsigned char *d, int len, | |
2142 | int *al); | |
2143 | ||
2144 | __owur int ssl_handshake_hash(SSL *s, unsigned char *out, int outlen); | |
2145 | ||
2146 | /* s3_cbc.c */ | |
2147 | __owur char ssl3_cbc_record_digest_supported(const EVP_MD_CTX *ctx); | |
2148 | void ssl3_cbc_digest_record(const EVP_MD_CTX *ctx, | |
2149 | unsigned char *md_out, | |
2150 | size_t *md_out_size, | |
2151 | const unsigned char header[13], | |
2152 | const unsigned char *data, | |
2153 | size_t data_plus_mac_size, | |
2154 | size_t data_plus_mac_plus_padding_size, | |
2155 | const unsigned char *mac_secret, | |
2156 | unsigned mac_secret_length, char is_sslv3); | |
2157 | ||
2158 | void tls_fips_digest_extra(const EVP_CIPHER_CTX *cipher_ctx, | |
2159 | EVP_MD_CTX *mac_ctx, const unsigned char *data, | |
2160 | size_t data_len, size_t orig_len); | |
2161 | ||
2162 | __owur int srp_verify_server_param(SSL *s, int *al); | |
2163 | ||
2164 | /* t1_ext.c */ | |
2165 | ||
2166 | void custom_ext_init(custom_ext_methods *meths); | |
2167 | ||
2168 | __owur int custom_ext_parse(SSL *s, int server, | |
2169 | unsigned int ext_type, | |
2170 | const unsigned char *ext_data, size_t ext_size, int *al); | |
2171 | __owur int custom_ext_add(SSL *s, int server, | |
2172 | unsigned char **pret, unsigned char *limit, int *al); | |
2173 | ||
2174 | __owur int custom_exts_copy(custom_ext_methods *dst, const custom_ext_methods *src); | |
2175 | void custom_exts_free(custom_ext_methods *exts); | |
2176 | ||
2177 | # else | |
2178 | ||
2179 | # define ssl_init_wbio_buffer SSL_test_functions()->p_ssl_init_wbio_buffer | |
2180 | # define ssl3_setup_buffers SSL_test_functions()->p_ssl3_setup_buffers | |
2181 | # define tls1_process_heartbeat SSL_test_functions()->p_tls1_process_heartbeat | |
2182 | # define dtls1_process_heartbeat SSL_test_functions()->p_dtls1_process_heartbeat | |
2183 | ||
2184 | # endif | |
2185 | #endif |