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863fe2ec | 1 | /* apps/s_cb.c - callback functions used by s_client, s_server, and s_time */ |
58964a49 | 2 | /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) |
d02b48c6 RE |
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 | */ | |
a661b653 | 58 | /* ==================================================================== |
241520e6 | 59 | * Copyright (c) 1998-2006 The OpenSSL Project. All rights reserved. |
a661b653 BM |
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 | */ | |
d02b48c6 RE |
111 | |
112 | #include <stdio.h> | |
113 | #include <stdlib.h> | |
114 | #define USE_SOCKETS | |
115 | #define NON_MAIN | |
116 | #include "apps.h" | |
117 | #undef NON_MAIN | |
118 | #undef USE_SOCKETS | |
ec577822 | 119 | #include <openssl/err.h> |
07a9d1a2 | 120 | #include <openssl/rand.h> |
ec577822 BM |
121 | #include <openssl/x509.h> |
122 | #include <openssl/ssl.h> | |
d02b48c6 RE |
123 | #include "s_apps.h" |
124 | ||
07a9d1a2 DSH |
125 | #define COOKIE_SECRET_LENGTH 16 |
126 | ||
d02b48c6 RE |
127 | int verify_depth=0; |
128 | int verify_error=X509_V_OK; | |
5d20c4fb | 129 | int verify_return_error=0; |
07a9d1a2 DSH |
130 | unsigned char cookie_secret[COOKIE_SECRET_LENGTH]; |
131 | int cookie_initialized=0; | |
d02b48c6 | 132 | |
6b691a5c | 133 | int MS_CALLBACK verify_callback(int ok, X509_STORE_CTX *ctx) |
d02b48c6 | 134 | { |
d02b48c6 RE |
135 | X509 *err_cert; |
136 | int err,depth; | |
137 | ||
138 | err_cert=X509_STORE_CTX_get_current_cert(ctx); | |
139 | err= X509_STORE_CTX_get_error(ctx); | |
140 | depth= X509_STORE_CTX_get_error_depth(ctx); | |
141 | ||
17716680 DSH |
142 | BIO_printf(bio_err,"depth=%d ",depth); |
143 | if (err_cert) | |
144 | { | |
145 | X509_NAME_print_ex(bio_err, X509_get_subject_name(err_cert), | |
146 | 0, XN_FLAG_ONELINE); | |
147 | BIO_puts(bio_err, "\n"); | |
148 | } | |
149 | else | |
150 | BIO_puts(bio_err, "<no cert>\n"); | |
d02b48c6 RE |
151 | if (!ok) |
152 | { | |
153 | BIO_printf(bio_err,"verify error:num=%d:%s\n",err, | |
154 | X509_verify_cert_error_string(err)); | |
155 | if (verify_depth >= depth) | |
156 | { | |
5d20c4fb DSH |
157 | if (!verify_return_error) |
158 | ok=1; | |
d02b48c6 RE |
159 | verify_error=X509_V_OK; |
160 | } | |
161 | else | |
162 | { | |
163 | ok=0; | |
164 | verify_error=X509_V_ERR_CERT_CHAIN_TOO_LONG; | |
165 | } | |
166 | } | |
17716680 | 167 | switch (err) |
d02b48c6 RE |
168 | { |
169 | case X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT: | |
17716680 DSH |
170 | BIO_puts(bio_err,"issuer= "); |
171 | X509_NAME_print_ex(bio_err, X509_get_issuer_name(err_cert), | |
172 | 0, XN_FLAG_ONELINE); | |
173 | BIO_puts(bio_err, "\n"); | |
d02b48c6 RE |
174 | break; |
175 | case X509_V_ERR_CERT_NOT_YET_VALID: | |
176 | case X509_V_ERR_ERROR_IN_CERT_NOT_BEFORE_FIELD: | |
177 | BIO_printf(bio_err,"notBefore="); | |
17716680 | 178 | ASN1_TIME_print(bio_err,X509_get_notBefore(err_cert)); |
d02b48c6 RE |
179 | BIO_printf(bio_err,"\n"); |
180 | break; | |
181 | case X509_V_ERR_CERT_HAS_EXPIRED: | |
182 | case X509_V_ERR_ERROR_IN_CERT_NOT_AFTER_FIELD: | |
183 | BIO_printf(bio_err,"notAfter="); | |
17716680 | 184 | ASN1_TIME_print(bio_err,X509_get_notAfter(err_cert)); |
d02b48c6 RE |
185 | BIO_printf(bio_err,"\n"); |
186 | break; | |
17716680 DSH |
187 | case X509_V_ERR_NO_EXPLICIT_POLICY: |
188 | policies_print(bio_err, ctx); | |
189 | break; | |
d02b48c6 | 190 | } |
17716680 DSH |
191 | if (err == X509_V_OK && ok == 2) |
192 | policies_print(bio_err, ctx); | |
193 | ||
d02b48c6 RE |
194 | BIO_printf(bio_err,"verify return:%d\n",ok); |
195 | return(ok); | |
196 | } | |
197 | ||
6b691a5c | 198 | int set_cert_stuff(SSL_CTX *ctx, char *cert_file, char *key_file) |
d02b48c6 RE |
199 | { |
200 | if (cert_file != NULL) | |
201 | { | |
dfeab068 | 202 | /* |
d02b48c6 RE |
203 | SSL *ssl; |
204 | X509 *x509; | |
dfeab068 | 205 | */ |
d02b48c6 RE |
206 | |
207 | if (SSL_CTX_use_certificate_file(ctx,cert_file, | |
208 | SSL_FILETYPE_PEM) <= 0) | |
209 | { | |
58964a49 | 210 | BIO_printf(bio_err,"unable to get certificate from '%s'\n",cert_file); |
d02b48c6 RE |
211 | ERR_print_errors(bio_err); |
212 | return(0); | |
213 | } | |
214 | if (key_file == NULL) key_file=cert_file; | |
215 | if (SSL_CTX_use_PrivateKey_file(ctx,key_file, | |
216 | SSL_FILETYPE_PEM) <= 0) | |
217 | { | |
58964a49 | 218 | BIO_printf(bio_err,"unable to get private key from '%s'\n",key_file); |
d02b48c6 RE |
219 | ERR_print_errors(bio_err); |
220 | return(0); | |
221 | } | |
222 | ||
dfeab068 RE |
223 | /* |
224 | In theory this is no longer needed | |
d02b48c6 RE |
225 | ssl=SSL_new(ctx); |
226 | x509=SSL_get_certificate(ssl); | |
227 | ||
a8236c8c DSH |
228 | if (x509 != NULL) { |
229 | EVP_PKEY *pktmp; | |
230 | pktmp = X509_get_pubkey(x509); | |
231 | EVP_PKEY_copy_parameters(pktmp, | |
232 | SSL_get_privatekey(ssl)); | |
233 | EVP_PKEY_free(pktmp); | |
234 | } | |
d02b48c6 | 235 | SSL_free(ssl); |
dfeab068 | 236 | */ |
d02b48c6 RE |
237 | |
238 | /* If we are using DSA, we can copy the parameters from | |
239 | * the private key */ | |
a9e1c50b BL |
240 | |
241 | ||
d02b48c6 RE |
242 | /* Now we know that a key and cert have been set against |
243 | * the SSL context */ | |
244 | if (!SSL_CTX_check_private_key(ctx)) | |
245 | { | |
246 | BIO_printf(bio_err,"Private key does not match the certificate public key\n"); | |
247 | return(0); | |
248 | } | |
249 | } | |
250 | return(1); | |
251 | } | |
252 | ||
fc6fc7ff | 253 | int set_cert_key_stuff(SSL_CTX *ctx, X509 *cert, EVP_PKEY *key, |
74ecfab4 | 254 | STACK_OF(X509) *chain, int build_chain) |
826a42a0 | 255 | { |
a9e1c50b | 256 | if (cert == NULL) |
abbc186b | 257 | return 1; |
826a42a0 DSH |
258 | if (SSL_CTX_use_certificate(ctx,cert) <= 0) |
259 | { | |
260 | BIO_printf(bio_err,"error setting certificate\n"); | |
261 | ERR_print_errors(bio_err); | |
262 | return 0; | |
263 | } | |
826a42a0 | 264 | |
a9e1c50b BL |
265 | if (SSL_CTX_use_PrivateKey(ctx,key) <= 0) |
266 | { | |
267 | BIO_printf(bio_err,"error setting private key\n"); | |
268 | ERR_print_errors(bio_err); | |
269 | return 0; | |
270 | } | |
271 | ||
272 | /* Now we know that a key and cert have been set against | |
273 | * the SSL context */ | |
826a42a0 DSH |
274 | if (!SSL_CTX_check_private_key(ctx)) |
275 | { | |
276 | BIO_printf(bio_err,"Private key does not match the certificate public key\n"); | |
277 | return 0; | |
278 | } | |
fc6fc7ff DSH |
279 | if (chain && !SSL_CTX_set1_chain(ctx, chain)) |
280 | { | |
281 | BIO_printf(bio_err,"error setting certificate chain\n"); | |
282 | ERR_print_errors(bio_err); | |
283 | return 0; | |
284 | } | |
74ecfab4 DSH |
285 | if (!chain && build_chain && !SSL_CTX_build_cert_chain(ctx, 0)) |
286 | { | |
287 | BIO_printf(bio_err,"error building certificate chain\n"); | |
288 | ERR_print_errors(bio_err); | |
289 | return 0; | |
290 | } | |
291 | ||
826a42a0 DSH |
292 | return 1; |
293 | } | |
294 | ||
9f27b1ee | 295 | static void ssl_print_client_cert_types(BIO *bio, SSL *s) |
e7f8ff43 | 296 | { |
9f27b1ee DSH |
297 | const unsigned char *p; |
298 | int i; | |
299 | int cert_type_num = SSL_get0_certificate_types(s, &p); | |
300 | if (!cert_type_num) | |
301 | return; | |
302 | BIO_puts(bio, "Client Certificate Types: "); | |
303 | for (i = 0; i < cert_type_num; i++) | |
304 | { | |
305 | unsigned char cert_type = p[i]; | |
306 | char *cname; | |
307 | switch(cert_type) | |
308 | { | |
309 | case TLS_CT_RSA_SIGN: | |
310 | cname = "RSA sign"; | |
311 | break; | |
312 | ||
313 | case TLS_CT_DSS_SIGN: | |
314 | cname = "DSA sign"; | |
315 | break; | |
316 | ||
317 | case TLS_CT_RSA_FIXED_DH: | |
318 | cname = "RSA fixed DH"; | |
319 | break; | |
320 | ||
321 | case TLS_CT_DSS_FIXED_DH: | |
322 | cname = "DSS fixed DH"; | |
323 | break; | |
324 | ||
325 | case TLS_CT_ECDSA_SIGN: | |
326 | cname = "ECDSA sign"; | |
327 | break; | |
328 | ||
329 | case TLS_CT_RSA_FIXED_ECDH: | |
330 | cname = "RSA fixed ECDH"; | |
331 | break; | |
332 | ||
333 | case TLS_CT_ECDSA_FIXED_ECDH: | |
334 | cname = "ECDSA fixed ECDH"; | |
335 | break; | |
336 | ||
337 | case TLS_CT_GOST94_SIGN: | |
338 | cname = "GOST94 Sign"; | |
339 | break; | |
340 | ||
341 | case TLS_CT_GOST01_SIGN: | |
342 | cname = "GOST01 Sign"; | |
343 | break; | |
344 | ||
345 | default: | |
346 | cname = NULL; | |
347 | } | |
348 | ||
349 | if (i) | |
350 | BIO_puts(bio, ", "); | |
351 | ||
352 | if (cname) | |
353 | BIO_puts(bio, cname); | |
354 | else | |
355 | BIO_printf(bio, "UNKNOWN (%d),", cert_type); | |
356 | } | |
357 | BIO_puts(bio, "\n"); | |
358 | } | |
359 | ||
360 | static int do_print_sigalgs(BIO *out, SSL *s, int shared) | |
361 | { | |
362 | int i, nsig, client; | |
363 | client = SSL_is_server(s) ? 0 : 1; | |
4453cd8c DSH |
364 | if (shared) |
365 | nsig = SSL_get_shared_sigalgs(s, -1, NULL, NULL, NULL, | |
366 | NULL, NULL); | |
367 | else | |
368 | nsig = SSL_get_sigalgs(s, -1, NULL, NULL, NULL, NULL, NULL); | |
e7f8ff43 DSH |
369 | if (nsig == 0) |
370 | return 1; | |
371 | ||
4453cd8c DSH |
372 | if (shared) |
373 | BIO_puts(out, "Shared "); | |
374 | ||
375 | if (client) | |
376 | BIO_puts(out, "Requested "); | |
e7f8ff43 DSH |
377 | BIO_puts(out, "Signature Algorithms: "); |
378 | for (i = 0; i < nsig; i++) | |
379 | { | |
380 | int hash_nid, sign_nid; | |
381 | unsigned char rhash, rsign; | |
382 | const char *sstr = NULL; | |
4453cd8c DSH |
383 | if (shared) |
384 | SSL_get_shared_sigalgs(s, i, &sign_nid, &hash_nid, NULL, | |
385 | &rsign, &rhash); | |
386 | else | |
387 | SSL_get_sigalgs(s, i, &sign_nid, &hash_nid, NULL, | |
e7f8ff43 DSH |
388 | &rsign, &rhash); |
389 | if (i) | |
390 | BIO_puts(out, ":"); | |
391 | if (sign_nid == EVP_PKEY_RSA) | |
392 | sstr = "RSA"; | |
393 | else if(sign_nid == EVP_PKEY_DSA) | |
394 | sstr = "DSA"; | |
395 | else if(sign_nid == EVP_PKEY_EC) | |
396 | sstr = "ECDSA"; | |
397 | if (sstr) | |
398 | BIO_printf(out,"%s+", sstr); | |
399 | else | |
400 | BIO_printf(out,"0x%02X+", (int)rsign); | |
401 | if (hash_nid != NID_undef) | |
402 | BIO_printf(out, "%s", OBJ_nid2sn(hash_nid)); | |
403 | else | |
404 | BIO_printf(out,"0x%02X", (int)rhash); | |
405 | } | |
406 | BIO_puts(out, "\n"); | |
407 | return 1; | |
408 | } | |
409 | ||
9f27b1ee | 410 | int ssl_print_sigalgs(BIO *out, SSL *s) |
4453cd8c | 411 | { |
9f27b1ee DSH |
412 | if (!SSL_is_server(s)) |
413 | ssl_print_client_cert_types(out, s); | |
414 | do_print_sigalgs(out, s, 0); | |
415 | do_print_sigalgs(out, s, 1); | |
4453cd8c DSH |
416 | return 1; |
417 | } | |
418 | ||
e7f8ff43 DSH |
419 | int ssl_print_curves(BIO *out, SSL *s) |
420 | { | |
d0595f17 DSH |
421 | int i, ncurves, *curves, nid; |
422 | const char *cname; | |
423 | ncurves = SSL_get1_curves(s, NULL); | |
e7f8ff43 DSH |
424 | if (ncurves <= 0) |
425 | return 1; | |
426 | curves = OPENSSL_malloc(ncurves * sizeof(int)); | |
d0595f17 | 427 | SSL_get1_curves(s, curves); |
e7f8ff43 DSH |
428 | |
429 | BIO_puts(out, "Supported Elliptic Curves: "); | |
430 | for (i = 0; i < ncurves; i++) | |
431 | { | |
e7f8ff43 DSH |
432 | if (i) |
433 | BIO_puts(out, ":"); | |
434 | nid = curves[i]; | |
435 | /* If unrecognised print out hex version */ | |
436 | if (nid & TLSEXT_nid_unknown) | |
437 | BIO_printf(out, "0x%04X", nid & 0xFFFF); | |
438 | else | |
439 | { | |
440 | /* Use NIST name for curve if it exists */ | |
441 | cname = EC_curve_nid2nist(nid); | |
442 | if (!cname) | |
443 | cname = OBJ_nid2sn(nid); | |
444 | BIO_printf(out, "%s", cname); | |
445 | } | |
446 | } | |
d0595f17 | 447 | BIO_puts(out, "\nShared Elliptic curves: "); |
e7f8ff43 | 448 | OPENSSL_free(curves); |
d0595f17 DSH |
449 | ncurves = SSL_get_shared_curve(s, -1); |
450 | for (i = 0; i < ncurves; i++) | |
451 | { | |
452 | if (i) | |
453 | BIO_puts(out, ":"); | |
454 | nid = SSL_get_shared_curve(s, i); | |
455 | cname = EC_curve_nid2nist(nid); | |
456 | if (!cname) | |
457 | cname = OBJ_nid2sn(nid); | |
458 | BIO_printf(out, "%s", cname); | |
459 | } | |
a4352630 DSH |
460 | if (ncurves == 0) |
461 | BIO_puts(out, "NONE"); | |
d0595f17 | 462 | BIO_puts(out, "\n"); |
e7f8ff43 DSH |
463 | return 1; |
464 | } | |
465 | ||
466 | ||
25495640 | 467 | long MS_CALLBACK bio_dump_callback(BIO *bio, int cmd, const char *argp, |
774b2fe7 | 468 | int argi, long argl, long ret) |
d02b48c6 RE |
469 | { |
470 | BIO *out; | |
471 | ||
472 | out=(BIO *)BIO_get_callback_arg(bio); | |
473 | if (out == NULL) return(ret); | |
474 | ||
475 | if (cmd == (BIO_CB_READ|BIO_CB_RETURN)) | |
476 | { | |
70d71f61 DSH |
477 | BIO_printf(out,"read from %p [%p] (%lu bytes => %ld (0x%lX))\n", |
478 | (void *)bio,argp,(unsigned long)argi,ret,ret); | |
d02b48c6 RE |
479 | BIO_dump(out,argp,(int)ret); |
480 | return(ret); | |
481 | } | |
482 | else if (cmd == (BIO_CB_WRITE|BIO_CB_RETURN)) | |
483 | { | |
70d71f61 DSH |
484 | BIO_printf(out,"write to %p [%p] (%lu bytes => %ld (0x%lX))\n", |
485 | (void *)bio,argp,(unsigned long)argi,ret,ret); | |
d02b48c6 RE |
486 | BIO_dump(out,argp,(int)ret); |
487 | } | |
488 | return(ret); | |
489 | } | |
490 | ||
45d87a1f | 491 | void MS_CALLBACK apps_ssl_info_callback(const SSL *s, int where, int ret) |
d02b48c6 | 492 | { |
7d727231 | 493 | const char *str; |
d02b48c6 RE |
494 | int w; |
495 | ||
496 | w=where& ~SSL_ST_MASK; | |
497 | ||
498 | if (w & SSL_ST_CONNECT) str="SSL_connect"; | |
499 | else if (w & SSL_ST_ACCEPT) str="SSL_accept"; | |
500 | else str="undefined"; | |
501 | ||
502 | if (where & SSL_CB_LOOP) | |
503 | { | |
504 | BIO_printf(bio_err,"%s:%s\n",str,SSL_state_string_long(s)); | |
505 | } | |
506 | else if (where & SSL_CB_ALERT) | |
507 | { | |
508 | str=(where & SSL_CB_READ)?"read":"write"; | |
509 | BIO_printf(bio_err,"SSL3 alert %s:%s:%s\n", | |
510 | str, | |
511 | SSL_alert_type_string_long(ret), | |
512 | SSL_alert_desc_string_long(ret)); | |
513 | } | |
514 | else if (where & SSL_CB_EXIT) | |
515 | { | |
516 | if (ret == 0) | |
517 | BIO_printf(bio_err,"%s:failed in %s\n", | |
518 | str,SSL_state_string_long(s)); | |
519 | else if (ret < 0) | |
520 | { | |
521 | BIO_printf(bio_err,"%s:error in %s\n", | |
522 | str,SSL_state_string_long(s)); | |
523 | } | |
524 | } | |
525 | } | |
526 | ||
a661b653 BM |
527 | |
528 | void MS_CALLBACK msg_cb(int write_p, int version, int content_type, const void *buf, size_t len, SSL *ssl, void *arg) | |
529 | { | |
530 | BIO *bio = arg; | |
531 | const char *str_write_p, *str_version, *str_content_type = "", *str_details1 = "", *str_details2= ""; | |
532 | ||
533 | str_write_p = write_p ? ">>>" : "<<<"; | |
534 | ||
535 | switch (version) | |
536 | { | |
537 | case SSL2_VERSION: | |
538 | str_version = "SSL 2.0"; | |
539 | break; | |
540 | case SSL3_VERSION: | |
541 | str_version = "SSL 3.0 "; | |
542 | break; | |
543 | case TLS1_VERSION: | |
544 | str_version = "TLS 1.0 "; | |
545 | break; | |
48435b20 DSH |
546 | case TLS1_1_VERSION: |
547 | str_version = "TLS 1.1 "; | |
548 | break; | |
cbc0b0ec AP |
549 | case TLS1_2_VERSION: |
550 | str_version = "TLS 1.2 "; | |
551 | break; | |
bdfa4ff9 DSH |
552 | case DTLS1_VERSION: |
553 | str_version = "DTLS 1.0 "; | |
554 | break; | |
555 | case DTLS1_BAD_VER: | |
556 | str_version = "DTLS 1.0 (bad) "; | |
557 | break; | |
a661b653 BM |
558 | default: |
559 | str_version = "???"; | |
560 | } | |
561 | ||
29e0c30c BM |
562 | if (version == SSL2_VERSION) |
563 | { | |
564 | str_details1 = "???"; | |
565 | ||
566 | if (len > 0) | |
567 | { | |
7d727231 | 568 | switch (((const unsigned char*)buf)[0]) |
29e0c30c BM |
569 | { |
570 | case 0: | |
571 | str_details1 = ", ERROR:"; | |
572 | str_details2 = " ???"; | |
573 | if (len >= 3) | |
574 | { | |
7d727231 | 575 | unsigned err = (((const unsigned char*)buf)[1]<<8) + ((const unsigned char*)buf)[2]; |
29e0c30c BM |
576 | |
577 | switch (err) | |
578 | { | |
579 | case 0x0001: | |
580 | str_details2 = " NO-CIPHER-ERROR"; | |
581 | break; | |
582 | case 0x0002: | |
583 | str_details2 = " NO-CERTIFICATE-ERROR"; | |
584 | break; | |
585 | case 0x0004: | |
586 | str_details2 = " BAD-CERTIFICATE-ERROR"; | |
587 | break; | |
588 | case 0x0006: | |
589 | str_details2 = " UNSUPPORTED-CERTIFICATE-TYPE-ERROR"; | |
590 | break; | |
591 | } | |
592 | } | |
593 | ||
594 | break; | |
595 | case 1: | |
596 | str_details1 = ", CLIENT-HELLO"; | |
597 | break; | |
598 | case 2: | |
599 | str_details1 = ", CLIENT-MASTER-KEY"; | |
600 | break; | |
601 | case 3: | |
602 | str_details1 = ", CLIENT-FINISHED"; | |
603 | break; | |
604 | case 4: | |
605 | str_details1 = ", SERVER-HELLO"; | |
606 | break; | |
607 | case 5: | |
608 | str_details1 = ", SERVER-VERIFY"; | |
609 | break; | |
610 | case 6: | |
611 | str_details1 = ", SERVER-FINISHED"; | |
612 | break; | |
613 | case 7: | |
614 | str_details1 = ", REQUEST-CERTIFICATE"; | |
615 | break; | |
616 | case 8: | |
617 | str_details1 = ", CLIENT-CERTIFICATE"; | |
618 | break; | |
619 | } | |
620 | } | |
621 | } | |
622 | ||
bdfa4ff9 DSH |
623 | if (version == SSL3_VERSION || |
624 | version == TLS1_VERSION || | |
625 | version == DTLS1_VERSION || | |
626 | version == DTLS1_BAD_VER) | |
a661b653 BM |
627 | { |
628 | switch (content_type) | |
629 | { | |
630 | case 20: | |
631 | str_content_type = "ChangeCipherSpec"; | |
632 | break; | |
633 | case 21: | |
634 | str_content_type = "Alert"; | |
635 | break; | |
636 | case 22: | |
637 | str_content_type = "Handshake"; | |
638 | break; | |
639 | } | |
640 | ||
641 | if (content_type == 21) /* Alert */ | |
642 | { | |
643 | str_details1 = ", ???"; | |
644 | ||
645 | if (len == 2) | |
646 | { | |
7d727231 | 647 | switch (((const unsigned char*)buf)[0]) |
a661b653 BM |
648 | { |
649 | case 1: | |
650 | str_details1 = ", warning"; | |
651 | break; | |
652 | case 2: | |
653 | str_details1 = ", fatal"; | |
654 | break; | |
655 | } | |
656 | ||
657 | str_details2 = " ???"; | |
7d727231 | 658 | switch (((const unsigned char*)buf)[1]) |
a661b653 BM |
659 | { |
660 | case 0: | |
661 | str_details2 = " close_notify"; | |
662 | break; | |
663 | case 10: | |
664 | str_details2 = " unexpected_message"; | |
665 | break; | |
666 | case 20: | |
667 | str_details2 = " bad_record_mac"; | |
668 | break; | |
669 | case 21: | |
670 | str_details2 = " decryption_failed"; | |
671 | break; | |
672 | case 22: | |
673 | str_details2 = " record_overflow"; | |
674 | break; | |
675 | case 30: | |
676 | str_details2 = " decompression_failure"; | |
677 | break; | |
678 | case 40: | |
679 | str_details2 = " handshake_failure"; | |
680 | break; | |
681 | case 42: | |
682 | str_details2 = " bad_certificate"; | |
683 | break; | |
684 | case 43: | |
685 | str_details2 = " unsupported_certificate"; | |
686 | break; | |
687 | case 44: | |
688 | str_details2 = " certificate_revoked"; | |
689 | break; | |
690 | case 45: | |
691 | str_details2 = " certificate_expired"; | |
692 | break; | |
693 | case 46: | |
694 | str_details2 = " certificate_unknown"; | |
695 | break; | |
696 | case 47: | |
697 | str_details2 = " illegal_parameter"; | |
698 | break; | |
699 | case 48: | |
700 | str_details2 = " unknown_ca"; | |
701 | break; | |
702 | case 49: | |
703 | str_details2 = " access_denied"; | |
704 | break; | |
705 | case 50: | |
706 | str_details2 = " decode_error"; | |
707 | break; | |
708 | case 51: | |
709 | str_details2 = " decrypt_error"; | |
710 | break; | |
711 | case 60: | |
712 | str_details2 = " export_restriction"; | |
713 | break; | |
714 | case 70: | |
715 | str_details2 = " protocol_version"; | |
716 | break; | |
717 | case 71: | |
718 | str_details2 = " insufficient_security"; | |
719 | break; | |
720 | case 80: | |
721 | str_details2 = " internal_error"; | |
722 | break; | |
723 | case 90: | |
724 | str_details2 = " user_canceled"; | |
725 | break; | |
726 | case 100: | |
727 | str_details2 = " no_renegotiation"; | |
728 | break; | |
241520e6 BM |
729 | case 110: |
730 | str_details2 = " unsupported_extension"; | |
731 | break; | |
732 | case 111: | |
733 | str_details2 = " certificate_unobtainable"; | |
734 | break; | |
735 | case 112: | |
736 | str_details2 = " unrecognized_name"; | |
737 | break; | |
738 | case 113: | |
739 | str_details2 = " bad_certificate_status_response"; | |
740 | break; | |
741 | case 114: | |
742 | str_details2 = " bad_certificate_hash_value"; | |
743 | break; | |
0c58d22a DSH |
744 | case 115: |
745 | str_details2 = " unknown_psk_identity"; | |
746 | break; | |
a661b653 BM |
747 | } |
748 | } | |
749 | } | |
750 | ||
751 | if (content_type == 22) /* Handshake */ | |
752 | { | |
753 | str_details1 = "???"; | |
754 | ||
755 | if (len > 0) | |
756 | { | |
7d727231 | 757 | switch (((const unsigned char*)buf)[0]) |
a661b653 BM |
758 | { |
759 | case 0: | |
760 | str_details1 = ", HelloRequest"; | |
761 | break; | |
762 | case 1: | |
763 | str_details1 = ", ClientHello"; | |
764 | break; | |
765 | case 2: | |
766 | str_details1 = ", ServerHello"; | |
767 | break; | |
bdfa4ff9 DSH |
768 | case 3: |
769 | str_details1 = ", HelloVerifyRequest"; | |
770 | break; | |
a661b653 BM |
771 | case 11: |
772 | str_details1 = ", Certificate"; | |
773 | break; | |
774 | case 12: | |
775 | str_details1 = ", ServerKeyExchange"; | |
776 | break; | |
777 | case 13: | |
778 | str_details1 = ", CertificateRequest"; | |
779 | break; | |
780 | case 14: | |
781 | str_details1 = ", ServerHelloDone"; | |
782 | break; | |
783 | case 15: | |
784 | str_details1 = ", CertificateVerify"; | |
785 | break; | |
786 | case 16: | |
787 | str_details1 = ", ClientKeyExchange"; | |
788 | break; | |
789 | case 20: | |
790 | str_details1 = ", Finished"; | |
791 | break; | |
792 | } | |
793 | } | |
794 | } | |
4817504d DSH |
795 | |
796 | #ifndef OPENSSL_NO_HEARTBEATS | |
797 | if (content_type == 24) /* Heartbeat */ | |
798 | { | |
799 | str_details1 = ", Heartbeat"; | |
800 | ||
801 | if (len > 0) | |
802 | { | |
803 | switch (((const unsigned char*)buf)[0]) | |
804 | { | |
805 | case 1: | |
806 | str_details1 = ", HeartbeatRequest"; | |
807 | break; | |
808 | case 2: | |
809 | str_details1 = ", HeartbeatResponse"; | |
810 | break; | |
811 | } | |
812 | } | |
813 | } | |
814 | #endif | |
a661b653 BM |
815 | } |
816 | ||
817 | BIO_printf(bio, "%s %s%s [length %04lx]%s%s\n", str_write_p, str_version, str_content_type, (unsigned long)len, str_details1, str_details2); | |
818 | ||
819 | if (len > 0) | |
820 | { | |
821 | size_t num, i; | |
822 | ||
823 | BIO_printf(bio, " "); | |
824 | num = len; | |
825 | #if 0 | |
826 | if (num > 16) | |
827 | num = 16; | |
828 | #endif | |
829 | for (i = 0; i < num; i++) | |
830 | { | |
831 | if (i % 16 == 0 && i > 0) | |
832 | BIO_printf(bio, "\n "); | |
7d727231 | 833 | BIO_printf(bio, " %02x", ((const unsigned char*)buf)[i]); |
a661b653 BM |
834 | } |
835 | if (i < len) | |
836 | BIO_printf(bio, " ..."); | |
837 | BIO_printf(bio, "\n"); | |
838 | } | |
710069c1 | 839 | (void)BIO_flush(bio); |
a661b653 | 840 | } |
6434abbf DSH |
841 | |
842 | void MS_CALLBACK tlsext_cb(SSL *s, int client_server, int type, | |
843 | unsigned char *data, int len, | |
844 | void *arg) | |
845 | { | |
846 | BIO *bio = arg; | |
847 | char *extname; | |
848 | ||
849 | switch(type) | |
850 | { | |
851 | case TLSEXT_TYPE_server_name: | |
852 | extname = "server name"; | |
853 | break; | |
854 | ||
855 | case TLSEXT_TYPE_max_fragment_length: | |
856 | extname = "max fragment length"; | |
857 | break; | |
858 | ||
859 | case TLSEXT_TYPE_client_certificate_url: | |
860 | extname = "client certificate URL"; | |
861 | break; | |
862 | ||
863 | case TLSEXT_TYPE_trusted_ca_keys: | |
864 | extname = "trusted CA keys"; | |
865 | break; | |
866 | ||
867 | case TLSEXT_TYPE_truncated_hmac: | |
868 | extname = "truncated HMAC"; | |
869 | break; | |
870 | ||
871 | case TLSEXT_TYPE_status_request: | |
872 | extname = "status request"; | |
873 | break; | |
874 | ||
15a40af2 DSH |
875 | case TLSEXT_TYPE_user_mapping: |
876 | extname = "user mapping"; | |
877 | break; | |
878 | ||
879 | case TLSEXT_TYPE_client_authz: | |
880 | extname = "client authz"; | |
881 | break; | |
882 | ||
883 | case TLSEXT_TYPE_server_authz: | |
884 | extname = "server authz"; | |
885 | break; | |
886 | ||
887 | case TLSEXT_TYPE_cert_type: | |
888 | extname = "cert type"; | |
889 | break; | |
890 | ||
6434abbf DSH |
891 | case TLSEXT_TYPE_elliptic_curves: |
892 | extname = "elliptic curves"; | |
893 | break; | |
894 | ||
895 | case TLSEXT_TYPE_ec_point_formats: | |
896 | extname = "EC point formats"; | |
897 | break; | |
898 | ||
15a40af2 DSH |
899 | case TLSEXT_TYPE_srp: |
900 | extname = "SRP"; | |
860c3dd1 DSH |
901 | break; |
902 | ||
7409d7ad DSH |
903 | case TLSEXT_TYPE_signature_algorithms: |
904 | extname = "signature algorithms"; | |
905 | break; | |
906 | ||
15a40af2 DSH |
907 | case TLSEXT_TYPE_use_srtp: |
908 | extname = "use SRTP"; | |
909 | break; | |
910 | ||
911 | case TLSEXT_TYPE_heartbeat: | |
912 | extname = "heartbeat"; | |
913 | break; | |
914 | ||
915 | case TLSEXT_TYPE_session_ticket: | |
916 | extname = "session ticket"; | |
917 | break; | |
918 | ||
919 | case TLSEXT_TYPE_renegotiate: | |
920 | extname = "renegotiation info"; | |
921 | break; | |
922 | ||
761772d7 BM |
923 | #ifdef TLSEXT_TYPE_opaque_prf_input |
924 | case TLSEXT_TYPE_opaque_prf_input: | |
925 | extname = "opaque PRF input"; | |
926 | break; | |
927 | #endif | |
15a40af2 DSH |
928 | #ifdef TLSEXT_TYPE_next_proto_neg |
929 | case TLSEXT_TYPE_next_proto_neg: | |
930 | extname = "next protocol"; | |
931 | break; | |
932 | #endif | |
6434abbf DSH |
933 | |
934 | default: | |
935 | extname = "unknown"; | |
936 | break; | |
937 | ||
938 | } | |
939 | ||
940 | BIO_printf(bio, "TLS %s extension \"%s\" (id=%d), len=%d\n", | |
941 | client_server ? "server": "client", | |
942 | extname, type, len); | |
710069c1 | 943 | BIO_dump(bio, (char *)data, len); |
367eb1f1 | 944 | (void)BIO_flush(bio); |
6434abbf | 945 | } |
07a9d1a2 DSH |
946 | |
947 | int MS_CALLBACK generate_cookie_callback(SSL *ssl, unsigned char *cookie, unsigned int *cookie_len) | |
948 | { | |
949 | unsigned char *buffer, result[EVP_MAX_MD_SIZE]; | |
950 | unsigned int length, resultlength; | |
636b6b45 | 951 | union { |
cba9ffc3 | 952 | struct sockaddr sa; |
636b6b45 | 953 | struct sockaddr_in s4; |
cba9ffc3 AP |
954 | #if OPENSSL_USE_IPV6 |
955 | struct sockaddr_in6 s6; | |
636b6b45 | 956 | #endif |
cba9ffc3 | 957 | } peer; |
636b6b45 | 958 | |
07a9d1a2 DSH |
959 | /* Initialize a random secret */ |
960 | if (!cookie_initialized) | |
961 | { | |
962 | if (!RAND_bytes(cookie_secret, COOKIE_SECRET_LENGTH)) | |
963 | { | |
964 | BIO_printf(bio_err,"error setting random cookie secret\n"); | |
965 | return 0; | |
966 | } | |
967 | cookie_initialized = 1; | |
968 | } | |
969 | ||
970 | /* Read peer information */ | |
971 | (void)BIO_dgram_get_peer(SSL_get_rbio(ssl), &peer); | |
972 | ||
973 | /* Create buffer with peer's address and port */ | |
636b6b45 | 974 | length = 0; |
cba9ffc3 | 975 | switch (peer.sa.sa_family) |
636b6b45 DSH |
976 | { |
977 | case AF_INET: | |
978 | length += sizeof(struct in_addr); | |
be456366 | 979 | length += sizeof(peer.s4.sin_port); |
636b6b45 | 980 | break; |
cba9ffc3 | 981 | #if OPENSSL_USE_IPV6 |
636b6b45 DSH |
982 | case AF_INET6: |
983 | length += sizeof(struct in6_addr); | |
be456366 | 984 | length += sizeof(peer.s6.sin6_port); |
636b6b45 | 985 | break; |
cba9ffc3 | 986 | #endif |
636b6b45 DSH |
987 | default: |
988 | OPENSSL_assert(0); | |
989 | break; | |
990 | } | |
07a9d1a2 DSH |
991 | buffer = OPENSSL_malloc(length); |
992 | ||
993 | if (buffer == NULL) | |
994 | { | |
995 | BIO_printf(bio_err,"out of memory\n"); | |
996 | return 0; | |
997 | } | |
636b6b45 | 998 | |
cba9ffc3 | 999 | switch (peer.sa.sa_family) |
636b6b45 DSH |
1000 | { |
1001 | case AF_INET: | |
1002 | memcpy(buffer, | |
1003 | &peer.s4.sin_port, | |
be456366 DSH |
1004 | sizeof(peer.s4.sin_port)); |
1005 | memcpy(buffer + sizeof(peer.s4.sin_port), | |
636b6b45 DSH |
1006 | &peer.s4.sin_addr, |
1007 | sizeof(struct in_addr)); | |
1008 | break; | |
cba9ffc3 | 1009 | #if OPENSSL_USE_IPV6 |
636b6b45 DSH |
1010 | case AF_INET6: |
1011 | memcpy(buffer, | |
1012 | &peer.s6.sin6_port, | |
be456366 DSH |
1013 | sizeof(peer.s6.sin6_port)); |
1014 | memcpy(buffer + sizeof(peer.s6.sin6_port), | |
636b6b45 DSH |
1015 | &peer.s6.sin6_addr, |
1016 | sizeof(struct in6_addr)); | |
1017 | break; | |
cba9ffc3 | 1018 | #endif |
636b6b45 DSH |
1019 | default: |
1020 | OPENSSL_assert(0); | |
1021 | break; | |
1022 | } | |
07a9d1a2 DSH |
1023 | |
1024 | /* Calculate HMAC of buffer using the secret */ | |
1025 | HMAC(EVP_sha1(), cookie_secret, COOKIE_SECRET_LENGTH, | |
1026 | buffer, length, result, &resultlength); | |
1027 | OPENSSL_free(buffer); | |
1028 | ||
1029 | memcpy(cookie, result, resultlength); | |
1030 | *cookie_len = resultlength; | |
1031 | ||
1032 | return 1; | |
1033 | } | |
1034 | ||
1035 | int MS_CALLBACK verify_cookie_callback(SSL *ssl, unsigned char *cookie, unsigned int cookie_len) | |
1036 | { | |
1037 | unsigned char *buffer, result[EVP_MAX_MD_SIZE]; | |
1038 | unsigned int length, resultlength; | |
636b6b45 | 1039 | union { |
cba9ffc3 | 1040 | struct sockaddr sa; |
636b6b45 | 1041 | struct sockaddr_in s4; |
cba9ffc3 AP |
1042 | #if OPENSSL_USE_IPV6 |
1043 | struct sockaddr_in6 s6; | |
636b6b45 | 1044 | #endif |
cba9ffc3 | 1045 | } peer; |
636b6b45 | 1046 | |
07a9d1a2 DSH |
1047 | /* If secret isn't initialized yet, the cookie can't be valid */ |
1048 | if (!cookie_initialized) | |
1049 | return 0; | |
1050 | ||
1051 | /* Read peer information */ | |
1052 | (void)BIO_dgram_get_peer(SSL_get_rbio(ssl), &peer); | |
1053 | ||
1054 | /* Create buffer with peer's address and port */ | |
636b6b45 | 1055 | length = 0; |
cba9ffc3 | 1056 | switch (peer.sa.sa_family) |
636b6b45 DSH |
1057 | { |
1058 | case AF_INET: | |
1059 | length += sizeof(struct in_addr); | |
be456366 | 1060 | length += sizeof(peer.s4.sin_port); |
636b6b45 | 1061 | break; |
cba9ffc3 | 1062 | #if OPENSSL_USE_IPV6 |
636b6b45 DSH |
1063 | case AF_INET6: |
1064 | length += sizeof(struct in6_addr); | |
be456366 | 1065 | length += sizeof(peer.s6.sin6_port); |
636b6b45 | 1066 | break; |
cba9ffc3 | 1067 | #endif |
636b6b45 DSH |
1068 | default: |
1069 | OPENSSL_assert(0); | |
1070 | break; | |
1071 | } | |
07a9d1a2 DSH |
1072 | buffer = OPENSSL_malloc(length); |
1073 | ||
1074 | if (buffer == NULL) | |
1075 | { | |
1076 | BIO_printf(bio_err,"out of memory\n"); | |
1077 | return 0; | |
1078 | } | |
636b6b45 | 1079 | |
cba9ffc3 | 1080 | switch (peer.sa.sa_family) |
636b6b45 DSH |
1081 | { |
1082 | case AF_INET: | |
1083 | memcpy(buffer, | |
1084 | &peer.s4.sin_port, | |
be456366 DSH |
1085 | sizeof(peer.s4.sin_port)); |
1086 | memcpy(buffer + sizeof(peer.s4.sin_port), | |
636b6b45 DSH |
1087 | &peer.s4.sin_addr, |
1088 | sizeof(struct in_addr)); | |
1089 | break; | |
cba9ffc3 | 1090 | #if OPENSSL_USE_IPV6 |
636b6b45 DSH |
1091 | case AF_INET6: |
1092 | memcpy(buffer, | |
1093 | &peer.s6.sin6_port, | |
be456366 DSH |
1094 | sizeof(peer.s6.sin6_port)); |
1095 | memcpy(buffer + sizeof(peer.s6.sin6_port), | |
636b6b45 DSH |
1096 | &peer.s6.sin6_addr, |
1097 | sizeof(struct in6_addr)); | |
1098 | break; | |
cba9ffc3 | 1099 | #endif |
636b6b45 DSH |
1100 | default: |
1101 | OPENSSL_assert(0); | |
1102 | break; | |
1103 | } | |
07a9d1a2 DSH |
1104 | |
1105 | /* Calculate HMAC of buffer using the secret */ | |
1106 | HMAC(EVP_sha1(), cookie_secret, COOKIE_SECRET_LENGTH, | |
1107 | buffer, length, result, &resultlength); | |
1108 | OPENSSL_free(buffer); | |
636b6b45 | 1109 | |
07a9d1a2 DSH |
1110 | if (cookie_len == resultlength && memcmp(result, cookie, resultlength) == 0) |
1111 | return 1; | |
1112 | ||
1113 | return 0; | |
1114 | } | |
18d71588 DSH |
1115 | |
1116 | /* Example of extended certificate handling. Where the standard support | |
1117 | * of one certificate per algorithm is not sufficient an application | |
1118 | * can decide which certificate(s) to use at runtime based on whatever | |
1119 | * criteria it deems appropriate. | |
1120 | */ | |
1121 | ||
1122 | /* Linked list of certificates, keys and chains */ | |
1123 | struct ssl_excert_st | |
1124 | { | |
1125 | int certform; | |
1126 | const char *certfile; | |
1127 | int keyform; | |
1128 | const char *keyfile; | |
1129 | const char *chainfile; | |
1130 | X509 *cert; | |
1131 | EVP_PKEY *key; | |
1132 | STACK_OF(X509) *chain; | |
74ecfab4 | 1133 | int build_chain; |
18d71588 DSH |
1134 | struct ssl_excert_st *next, *prev; |
1135 | }; | |
1136 | ||
1137 | /* Very basic selection callback: just use any certificate chain | |
1138 | * reported as valid. More sophisticated could prioritise according | |
1139 | * to local policy. | |
1140 | */ | |
1141 | static int set_cert_cb(SSL *ssl, void *arg) | |
1142 | { | |
1143 | SSL_EXCERT *exc = arg; | |
1144 | SSL_certs_clear(ssl); | |
1145 | ||
1146 | if (!exc) | |
1147 | return 1; | |
1148 | ||
1149 | /* Go to end of list and traverse backwards since we prepend | |
1150 | * newer entries this retains the original order. | |
1151 | */ | |
1152 | while (exc->next) | |
1153 | exc = exc->next; | |
1154 | ||
1155 | while(exc) | |
1156 | { | |
1157 | if (SSL_check_chain(ssl, exc->cert, exc->key, exc->chain)) | |
1158 | { | |
1159 | SSL_use_certificate(ssl, exc->cert); | |
1160 | SSL_use_PrivateKey(ssl, exc->key); | |
74ecfab4 DSH |
1161 | /* NB: we wouldn't normally do this as it is |
1162 | * not efficient building chains on each connection | |
1163 | * better to cache the chain in advance. | |
1164 | */ | |
1165 | if (exc->build_chain) | |
1166 | { | |
1167 | if (!SSL_build_cert_chain(ssl, 0)) | |
1168 | return 0; | |
1169 | } | |
1170 | else if (exc->chain) | |
18d71588 DSH |
1171 | SSL_set1_chain(ssl, exc->chain); |
1172 | } | |
1173 | exc = exc->prev; | |
1174 | } | |
1175 | return 1; | |
1176 | } | |
1177 | ||
1178 | void ssl_ctx_set_excert(SSL_CTX *ctx, SSL_EXCERT *exc) | |
1179 | { | |
1180 | SSL_CTX_set_cert_cb(ctx, set_cert_cb, exc); | |
1181 | } | |
1182 | ||
1183 | static int ssl_excert_prepend(SSL_EXCERT **pexc) | |
1184 | { | |
1185 | SSL_EXCERT *exc; | |
1186 | exc = OPENSSL_malloc(sizeof(SSL_EXCERT)); | |
1187 | if (!exc) | |
1188 | return 0; | |
1189 | exc->certfile = NULL; | |
1190 | exc->keyfile = NULL; | |
1191 | exc->chainfile = NULL; | |
1192 | exc->cert = NULL; | |
1193 | exc->key = NULL; | |
1194 | exc->chain = NULL; | |
1195 | exc->prev = NULL; | |
74ecfab4 | 1196 | exc->build_chain = 0; |
18d71588 DSH |
1197 | |
1198 | exc->next = *pexc; | |
1199 | *pexc = exc; | |
1200 | ||
1201 | if (exc->next) | |
1202 | { | |
1203 | exc->certform = exc->next->certform; | |
1204 | exc->keyform = exc->next->keyform; | |
1205 | exc->next->prev = exc; | |
1206 | } | |
1207 | else | |
1208 | { | |
1209 | exc->certform = FORMAT_PEM; | |
1210 | exc->keyform = FORMAT_PEM; | |
1211 | } | |
1212 | return 1; | |
1213 | ||
1214 | } | |
1215 | ||
1216 | void ssl_excert_free(SSL_EXCERT *exc) | |
1217 | { | |
1218 | SSL_EXCERT *curr; | |
1219 | while (exc) | |
1220 | { | |
1221 | if (exc->cert) | |
1222 | X509_free(exc->cert); | |
1223 | if (exc->key) | |
1224 | EVP_PKEY_free(exc->key); | |
1225 | if (exc->chain) | |
1226 | sk_X509_pop_free(exc->chain, X509_free); | |
1227 | curr = exc; | |
1228 | exc = exc->next; | |
1229 | OPENSSL_free(curr); | |
1230 | } | |
1231 | } | |
1232 | ||
1233 | int load_excert(SSL_EXCERT **pexc, BIO *err) | |
1234 | { | |
1235 | SSL_EXCERT *exc = *pexc; | |
1236 | if (!exc) | |
1237 | return 1; | |
1238 | /* If nothing in list, free and set to NULL */ | |
1239 | if (!exc->certfile && !exc->next) | |
1240 | { | |
1241 | ssl_excert_free(exc); | |
1242 | *pexc = NULL; | |
1243 | return 1; | |
1244 | } | |
1245 | for(; exc; exc=exc->next) | |
1246 | { | |
1247 | if (!exc->certfile) | |
1248 | { | |
1249 | BIO_printf(err, "Missing filename\n"); | |
1250 | return 0; | |
1251 | } | |
1252 | exc->cert = load_cert(err, exc->certfile, exc->certform, | |
1253 | NULL, NULL, "Server Certificate"); | |
1254 | if (!exc->cert) | |
1255 | return 0; | |
1256 | if (exc->keyfile) | |
1257 | exc->keyfile = exc->certfile; | |
1258 | exc->key = load_key(err, exc->certfile, exc->certform, 0, | |
1259 | NULL, NULL, "Server Certificate"); | |
1260 | if (!exc->key) | |
1261 | return 0; | |
1262 | if (exc->chainfile) | |
1263 | { | |
1264 | exc->chain = load_certs(err, | |
1265 | exc->chainfile, FORMAT_PEM, | |
1266 | NULL, NULL, | |
1267 | "Server Chain"); | |
1268 | if (!exc->chainfile) | |
1269 | return 0; | |
1270 | } | |
1271 | } | |
1272 | return 1; | |
1273 | } | |
1274 | ||
1275 | ||
1276 | int args_excert(char ***pargs, int *pargc, | |
1277 | int *badarg, BIO *err, SSL_EXCERT **pexc) | |
1278 | { | |
1279 | char *arg = **pargs, *argn = (*pargs)[1]; | |
1280 | SSL_EXCERT *exc = *pexc; | |
74ecfab4 | 1281 | int narg = 2; |
3208fc59 | 1282 | if (!exc) |
18d71588 | 1283 | { |
3208fc59 DSH |
1284 | if (ssl_excert_prepend(&exc)) |
1285 | *pexc = exc; | |
1286 | else | |
1287 | { | |
1288 | BIO_printf(err, "Error initialising xcert\n"); | |
1289 | *badarg = 1; | |
1290 | goto err; | |
1291 | } | |
18d71588 DSH |
1292 | } |
1293 | if (strcmp(arg, "-xcert") == 0) | |
1294 | { | |
1295 | if (!argn) | |
1296 | { | |
1297 | *badarg = 1; | |
1298 | return 1; | |
1299 | } | |
1300 | if (exc->certfile && !ssl_excert_prepend(&exc)) | |
1301 | { | |
1302 | BIO_printf(err, "Error adding xcert\n"); | |
1303 | *badarg = 1; | |
1304 | goto err; | |
1305 | } | |
1306 | exc->certfile = argn; | |
1307 | } | |
1308 | else if (strcmp(arg,"-xkey") == 0) | |
1309 | { | |
1310 | if (!argn) | |
1311 | { | |
1312 | *badarg = 1; | |
1313 | return 1; | |
1314 | } | |
1315 | if (exc->keyfile) | |
1316 | { | |
1317 | BIO_printf(err, "Key already specified\n"); | |
1318 | *badarg = 1; | |
1319 | return 1; | |
1320 | } | |
1321 | exc->keyfile = argn; | |
1322 | } | |
1323 | else if (strcmp(arg,"-xchain") == 0) | |
1324 | { | |
1325 | if (!argn) | |
1326 | { | |
1327 | *badarg = 1; | |
1328 | return 1; | |
1329 | } | |
1330 | if (exc->chainfile) | |
1331 | { | |
1332 | BIO_printf(err, "Chain already specified\n"); | |
1333 | *badarg = 1; | |
1334 | return 1; | |
1335 | } | |
1336 | exc->chainfile = argn; | |
1337 | } | |
74ecfab4 DSH |
1338 | else if (strcmp(arg,"-xchain_build") == 0) |
1339 | { | |
1340 | narg = 1; | |
1341 | exc->build_chain = 1; | |
1342 | } | |
18d71588 DSH |
1343 | else if (strcmp(arg,"-xcertform") == 0) |
1344 | { | |
1345 | if (!argn) | |
1346 | { | |
1347 | *badarg = 1; | |
1348 | goto err; | |
1349 | } | |
1350 | exc->certform = str2fmt(argn); | |
1351 | } | |
1352 | else if (strcmp(arg,"-xkeyform") == 0) | |
1353 | { | |
1354 | if (!argn) | |
1355 | { | |
1356 | *badarg = 1; | |
1357 | goto err; | |
1358 | } | |
1359 | exc->keyform = str2fmt(argn); | |
1360 | } | |
1361 | else | |
1362 | return 0; | |
1363 | ||
74ecfab4 | 1364 | (*pargs) += narg; |
18d71588 DSH |
1365 | |
1366 | if (pargc) | |
74ecfab4 | 1367 | *pargc -= narg; |
18d71588 DSH |
1368 | |
1369 | *pexc = exc; | |
1370 | ||
1371 | return 1; | |
1372 | ||
1373 | err: | |
1374 | ERR_print_errors(err); | |
1375 | ssl_excert_free(exc); | |
1376 | *pexc = NULL; | |
1377 | return 1; | |
1378 | } | |
1379 |