Commit | Line | Data |
---|---|---|
9d1c15ef JH |
1 | /************************************************* |
2 | * Exim - an Internet mail transport agent * | |
3 | *************************************************/ | |
4 | ||
80fea873 | 5 | /* Copyright (c) Jeremy Harris 2014 - 2016 */ |
9d1c15ef JH |
6 | |
7 | /* This module provides TLS (aka SSL) support for Exim using the OpenSSL | |
8 | library. It is #included into the tls.c file when that library is used. | |
9 | */ | |
10 | ||
11 | ||
12 | /* Heading stuff */ | |
13 | ||
14 | #include <openssl/lhash.h> | |
15 | #include <openssl/ssl.h> | |
16 | #include <openssl/err.h> | |
17 | #include <openssl/rand.h> | |
51424d08 | 18 | #include <openssl/x509v3.h> |
9d1c15ef | 19 | |
c8dfb21d JH |
20 | #if OPENSSL_VERSION_NUMBER >= 0x10100000L |
21 | # define EXIM_HAVE_ASN1_MACROS | |
22 | #endif | |
23 | ||
9d1c15ef JH |
24 | |
25 | /***************************************************** | |
26 | * Export/import a certificate, binary/printable | |
27 | *****************************************************/ | |
28 | int | |
29 | tls_export_cert(uschar * buf, size_t buflen, void * cert) | |
30 | { | |
31 | BIO * bp = BIO_new(BIO_s_mem()); | |
32 | int fail; | |
33 | ||
34 | if ((fail = PEM_write_bio_X509(bp, (X509 *)cert) ? 0 : 1)) | |
35 | log_write(0, LOG_MAIN, "TLS error in certificate export: %s", | |
36 | ERR_error_string(ERR_get_error(), NULL)); | |
37 | else | |
38 | { | |
39 | char * cp = CS buf; | |
40 | int n; | |
41 | buflen -= 2; | |
42 | for(;;) | |
43 | { | |
44 | if ((n = BIO_gets(bp, cp, (int)buflen)) <= 0) break; | |
45 | cp += n+1; | |
46 | buflen -= n+1; | |
47 | cp[-2] = '\\'; cp[-1] = 'n'; /* newline->"\n" */ | |
48 | } /* compat with string_printing() */ | |
49 | *cp = '\0'; | |
50 | } | |
51 | ||
52 | BIO_free(bp); | |
53 | return fail; | |
54 | } | |
55 | ||
56 | int | |
57 | tls_import_cert(const uschar * buf, void ** cert) | |
58 | { | |
59 | void * reset_point = store_get(0); | |
60 | const uschar * cp = string_unprinting(US buf); | |
61 | BIO * bp; | |
152e7604 | 62 | X509 * x = *(X509 **)cert; |
c03fae8a | 63 | int fail = 0; |
9d1c15ef | 64 | |
152e7604 JH |
65 | if (x) X509_free(x); |
66 | ||
9d1c15ef | 67 | bp = BIO_new_mem_buf(US cp, -1); |
c03fae8a JH |
68 | if (!(x = PEM_read_bio_X509(bp, NULL, 0, NULL))) |
69 | { | |
70 | log_write(0, LOG_MAIN, "TLS error in certificate import: %s", | |
71 | ERR_error_string(ERR_get_error(), NULL)); | |
9d1c15ef | 72 | fail = 1; |
c03fae8a | 73 | } |
9d1c15ef JH |
74 | else |
75 | *cert = (void *)x; | |
76 | BIO_free(bp); | |
77 | store_reset(reset_point); | |
78 | return fail; | |
79 | } | |
80 | ||
81 | void | |
790fbb71 | 82 | tls_free_cert(void ** cert) |
9d1c15ef | 83 | { |
790fbb71 JH |
84 | X509 * x = *(X509 **)cert; |
85 | if (x) | |
86 | { | |
87 | X509_free(x); | |
88 | *cert = NULL; | |
89 | } | |
9d1c15ef JH |
90 | } |
91 | ||
c03fae8a | 92 | |
9d1c15ef JH |
93 | /***************************************************** |
94 | * Certificate field extraction routines | |
95 | *****************************************************/ | |
c03fae8a JH |
96 | |
97 | /* First, some internal service functions */ | |
98 | ||
99 | static uschar * | |
100 | badalloc(void) | |
101 | { | |
102 | expand_string_message = US"allocation failure"; | |
103 | return NULL; | |
104 | } | |
105 | ||
9d1c15ef JH |
106 | static uschar * |
107 | bio_string_copy(BIO * bp, int len) | |
108 | { | |
e3dd1d67 | 109 | uschar * cp = US""; |
9d1c15ef JH |
110 | len = len > 0 ? (int) BIO_get_mem_data(bp, &cp) : 0; |
111 | cp = string_copyn(cp, len); | |
112 | BIO_free(bp); | |
113 | return cp; | |
114 | } | |
115 | ||
116 | static uschar * | |
e9477a08 | 117 | asn1_time_copy(const ASN1_TIME * asntime, uschar * mod) |
9d1c15ef | 118 | { |
e9477a08 | 119 | uschar * s = NULL; |
9d1c15ef | 120 | BIO * bp = BIO_new(BIO_s_mem()); |
c03fae8a JH |
121 | int len; |
122 | ||
e9477a08 JH |
123 | if (!bp) |
124 | return badalloc(); | |
125 | len = ASN1_TIME_print(bp, asntime); | |
d4ff61d1 | 126 | len = len > 0 ? (int) BIO_get_mem_data(bp, CSS &s) : 0; |
c03fae8a | 127 | |
e9477a08 JH |
128 | if (mod && Ustrcmp(mod, "raw") == 0) /* native ASN */ |
129 | s = string_copyn(s, len); | |
130 | else | |
131 | { | |
132 | struct tm tm; | |
133 | struct tm * tm_p = &tm; | |
755762fd | 134 | BOOL mod_tz = TRUE; |
45500060 | 135 | uschar * tz = to_tz(US"GMT0"); /* need to call strptime with baseline TZ */ |
e9477a08 JH |
136 | |
137 | /* Parse OpenSSL ASN1_TIME_print output. A shame there seems to | |
138 | be no other interface for the times. | |
139 | */ | |
140 | ||
141 | /*XXX %Z might be glibc-specific? Solaris has it, at least*/ | |
142 | /*XXX should we switch to POSIX locale for this? */ | |
143 | tm.tm_isdst = 0; | |
d4ff61d1 | 144 | if (!len || !strptime(CCS s, "%b %e %T %Y %Z", &tm)) |
e9477a08 JH |
145 | expand_string_message = US"failed time conversion"; |
146 | ||
147 | else | |
148 | { | |
149 | time_t t = mktime(&tm); /* make the tm self-consistent */ | |
150 | ||
151 | if (mod && Ustrcmp(mod, "int") == 0) /* seconds since epoch */ | |
152 | s = string_sprintf("%u", t); | |
153 | ||
154 | else | |
155 | { | |
156 | if (!timestamps_utc) /* decoded string in local TZ */ | |
157 | { /* shift to local TZ */ | |
158 | restore_tz(tz); | |
159 | mod_tz = FALSE; | |
160 | tm_p = localtime(&t); | |
161 | } | |
162 | /* "utc" is default, and rfc5280 says cert times should be Zulu */ | |
163 | ||
164 | /* convert to string in our format */ | |
165 | len = 32; | |
166 | s = store_get(len); | |
167 | strftime(CS s, (size_t)len, "%b %e %T %Y %z", tm_p); | |
168 | } | |
169 | } | |
170 | ||
755762fd | 171 | if (mod_tz) |
e9477a08 JH |
172 | restore_tz(tz); |
173 | } | |
174 | BIO_free(bp); | |
175 | return s; | |
9d1c15ef JH |
176 | } |
177 | ||
178 | static uschar * | |
179 | x509_name_copy(X509_NAME * name) | |
180 | { | |
181 | BIO * bp = BIO_new(BIO_s_mem()); | |
c03fae8a JH |
182 | int len_good; |
183 | ||
184 | if (!bp) return badalloc(); | |
185 | ||
186 | len_good = | |
9d1c15ef JH |
187 | X509_NAME_print_ex(bp, name, 0, XN_FLAG_RFC2253) >= 0 |
188 | ? 1 : 0; | |
189 | return bio_string_copy(bp, len_good); | |
190 | } | |
191 | ||
192 | /**/ | |
c03fae8a JH |
193 | /* Now the extractors, called from expand.c |
194 | Arguments: | |
195 | cert The certificate | |
196 | mod Optional modifiers for the operator | |
197 | ||
198 | Return: | |
199 | Allocated string with extracted value | |
200 | */ | |
9d1c15ef JH |
201 | |
202 | uschar * | |
9e4dddbd | 203 | tls_cert_issuer(void * cert, uschar * mod) |
9d1c15ef | 204 | { |
812a6045 JH |
205 | uschar * cp = x509_name_copy(X509_get_issuer_name((X509 *)cert)); |
206 | return mod ? tls_field_from_dn(cp, mod) : cp; | |
9d1c15ef JH |
207 | } |
208 | ||
209 | uschar * | |
9e4dddbd | 210 | tls_cert_not_before(void * cert, uschar * mod) |
9d1c15ef | 211 | { |
25ba2544 | 212 | return asn1_time_copy(X509_get_notBefore((X509 *)cert), mod); |
9d1c15ef JH |
213 | } |
214 | ||
215 | uschar * | |
9e4dddbd | 216 | tls_cert_not_after(void * cert, uschar * mod) |
9d1c15ef | 217 | { |
25ba2544 | 218 | return asn1_time_copy(X509_get_notAfter((X509 *)cert), mod); |
9d1c15ef JH |
219 | } |
220 | ||
221 | uschar * | |
9e4dddbd | 222 | tls_cert_serial_number(void * cert, uschar * mod) |
9d1c15ef JH |
223 | { |
224 | uschar txt[256]; | |
225 | BIO * bp = BIO_new(BIO_s_mem()); | |
c03fae8a | 226 | int len; |
9d1c15ef | 227 | |
c03fae8a JH |
228 | if (!bp) return badalloc(); |
229 | ||
230 | len = i2a_ASN1_INTEGER(bp, X509_get_serialNumber((X509 *)cert)); | |
9d1c15ef JH |
231 | if (len < sizeof(txt)) |
232 | BIO_read(bp, txt, len); | |
233 | else | |
234 | len = 0; | |
235 | BIO_free(bp); | |
236 | return string_copynlc(txt, len); /* lowercase */ | |
237 | } | |
238 | ||
239 | uschar * | |
9e4dddbd | 240 | tls_cert_signature(void * cert, uschar * mod) |
9d1c15ef | 241 | { |
9d1c15ef | 242 | uschar * cp = NULL; |
c03fae8a JH |
243 | BIO * bp = BIO_new(BIO_s_mem()); |
244 | ||
245 | if (!bp) return badalloc(); | |
9d1c15ef JH |
246 | |
247 | if (X509_print_ex(bp, (X509 *)cert, 0, | |
94431adb HSHR |
248 | X509_FLAG_NO_HEADER | X509_FLAG_NO_VERSION | X509_FLAG_NO_SERIAL | |
249 | X509_FLAG_NO_SIGNAME | X509_FLAG_NO_ISSUER | X509_FLAG_NO_VALIDITY | | |
250 | X509_FLAG_NO_SUBJECT | X509_FLAG_NO_PUBKEY | X509_FLAG_NO_EXTENSIONS | | |
9d1c15ef JH |
251 | /* X509_FLAG_NO_SIGDUMP is the missing one */ |
252 | X509_FLAG_NO_AUX) == 1) | |
253 | { | |
254 | long len = BIO_get_mem_data(bp, &cp); | |
315e209a JH |
255 | |
256 | /* Strip leading "Signature Algorithm" line */ | |
257 | while (*cp && *cp != '\n') { cp++; len--; } | |
258 | ||
259 | cp = string_copyn(cp+1, len-1); | |
9d1c15ef JH |
260 | } |
261 | BIO_free(bp); | |
262 | return cp; | |
263 | } | |
264 | ||
265 | uschar * | |
9e4dddbd | 266 | tls_cert_signature_algorithm(void * cert, uschar * mod) |
9d1c15ef | 267 | { |
315e209a JH |
268 | uschar * cp = NULL; |
269 | BIO * bp = BIO_new(BIO_s_mem()); | |
270 | ||
271 | if (!bp) return badalloc(); | |
272 | ||
273 | if (X509_print_ex(bp, (X509 *)cert, 0, | |
94431adb | 274 | X509_FLAG_NO_HEADER | X509_FLAG_NO_VERSION | X509_FLAG_NO_SERIAL | |
315e209a | 275 | /* X509_FLAG_NO_SIGNAME is the missing one */ |
94431adb HSHR |
276 | X509_FLAG_NO_ISSUER | X509_FLAG_NO_VALIDITY | |
277 | X509_FLAG_NO_SUBJECT | X509_FLAG_NO_PUBKEY | X509_FLAG_NO_EXTENSIONS | | |
315e209a JH |
278 | X509_FLAG_NO_SIGDUMP | X509_FLAG_NO_AUX) == 1) |
279 | { | |
280 | long len = BIO_get_mem_data(bp, &cp); | |
281 | ||
282 | /* Strip leading " Signature Algorithm: " and trailing newline */ | |
283 | while (*cp && *cp != ':') { cp++; len--; } | |
284 | do { cp++; len--; } while (*cp && *cp == ' '); | |
285 | if (cp[len-1] == '\n') len--; | |
286 | ||
287 | cp = string_copyn(cp, len); | |
288 | } | |
289 | BIO_free(bp); | |
290 | return cp; | |
9d1c15ef JH |
291 | } |
292 | ||
293 | uschar * | |
9e4dddbd | 294 | tls_cert_subject(void * cert, uschar * mod) |
9d1c15ef | 295 | { |
812a6045 JH |
296 | uschar * cp = x509_name_copy(X509_get_subject_name((X509 *)cert)); |
297 | return mod ? tls_field_from_dn(cp, mod) : cp; | |
9d1c15ef JH |
298 | } |
299 | ||
300 | uschar * | |
9e4dddbd | 301 | tls_cert_version(void * cert, uschar * mod) |
9d1c15ef JH |
302 | { |
303 | return string_sprintf("%d", X509_get_version((X509 *)cert)); | |
304 | } | |
305 | ||
306 | uschar * | |
307 | tls_cert_ext_by_oid(void * cert, uschar * oid, int idx) | |
308 | { | |
e3dd1d67 | 309 | int nid = OBJ_create(CS oid, "", ""); |
9d1c15ef JH |
310 | int nidx = X509_get_ext_by_NID((X509 *)cert, nid, idx); |
311 | X509_EXTENSION * ex = X509_get_ext((X509 *)cert, nidx); | |
312 | ASN1_OCTET_STRING * adata = X509_EXTENSION_get_data(ex); | |
313 | BIO * bp = BIO_new(BIO_s_mem()); | |
314 | long len; | |
315 | uschar * cp1; | |
316 | uschar * cp2; | |
317 | uschar * cp3; | |
318 | ||
c03fae8a JH |
319 | if (!bp) return badalloc(); |
320 | ||
c8dfb21d JH |
321 | #ifdef EXIM_HAVE_ASN1_MACROS |
322 | ASN1_STRING_print(bp, adata); | |
323 | #else | |
9d1c15ef | 324 | M_ASN1_OCTET_STRING_print(bp, adata); |
c8dfb21d | 325 | #endif |
9d1c15ef | 326 | |
c8dfb21d | 327 | /* binary data, DER encoded */ |
9d1c15ef JH |
328 | /* just dump for now */ |
329 | len = BIO_get_mem_data(bp, &cp1); | |
330 | cp3 = cp2 = store_get(len*3+1); | |
331 | ||
332 | while(len) | |
333 | { | |
e3dd1d67 | 334 | sprintf(CS cp2, "%.2x ", *cp1++); |
9d1c15ef JH |
335 | cp2 += 3; |
336 | len--; | |
337 | } | |
338 | cp2[-1] = '\0'; | |
339 | ||
340 | return cp3; | |
341 | } | |
342 | ||
343 | uschar * | |
9e4dddbd | 344 | tls_cert_subject_altname(void * cert, uschar * mod) |
9d1c15ef | 345 | { |
9e4dddbd | 346 | uschar * list = NULL; |
9d1c15ef JH |
347 | STACK_OF(GENERAL_NAME) * san = (STACK_OF(GENERAL_NAME) *) |
348 | X509_get_ext_d2i((X509 *)cert, NID_subject_alt_name, NULL, NULL); | |
b3ef41c9 | 349 | uschar osep = '\n'; |
9e4dddbd JH |
350 | uschar * tag = US""; |
351 | uschar * ele; | |
352 | int match = -1; | |
e51c7be2 | 353 | int len; |
9d1c15ef JH |
354 | |
355 | if (!san) return NULL; | |
356 | ||
b3ef41c9 | 357 | while (mod && *mod) |
9e4dddbd | 358 | { |
b3ef41c9 JH |
359 | if (*mod == '>' && *++mod) osep = *mod++; |
360 | else if (Ustrncmp(mod,"dns",3)==0) { match = GEN_DNS; mod += 3; } | |
361 | else if (Ustrncmp(mod,"uri",3)==0) { match = GEN_URI; mod += 3; } | |
362 | else if (Ustrncmp(mod,"mail",4)==0) { match = GEN_EMAIL; mod += 4; } | |
363 | else mod++; | |
9e4dddbd | 364 | |
b3ef41c9 | 365 | if (*mod == ',') mod++; |
9e4dddbd JH |
366 | } |
367 | ||
9d1c15ef JH |
368 | while (sk_GENERAL_NAME_num(san) > 0) |
369 | { | |
370 | GENERAL_NAME * namePart = sk_GENERAL_NAME_pop(san); | |
9e4dddbd JH |
371 | if (match != -1 && match != namePart->type) |
372 | continue; | |
9d1c15ef JH |
373 | switch (namePart->type) |
374 | { | |
9e4dddbd JH |
375 | case GEN_DNS: |
376 | tag = US"DNS"; | |
377 | ele = ASN1_STRING_data(namePart->d.dNSName); | |
e51c7be2 | 378 | len = ASN1_STRING_length(namePart->d.dNSName); |
9e4dddbd | 379 | break; |
9d1c15ef | 380 | case GEN_URI: |
9e4dddbd JH |
381 | tag = US"URI"; |
382 | ele = ASN1_STRING_data(namePart->d.uniformResourceIdentifier); | |
e51c7be2 | 383 | len = ASN1_STRING_length(namePart->d.uniformResourceIdentifier); |
9e4dddbd | 384 | break; |
9d1c15ef | 385 | case GEN_EMAIL: |
9e4dddbd JH |
386 | tag = US"MAIL"; |
387 | ele = ASN1_STRING_data(namePart->d.rfc822Name); | |
e51c7be2 | 388 | len = ASN1_STRING_length(namePart->d.rfc822Name); |
9e4dddbd | 389 | break; |
9d1c15ef | 390 | default: |
9e4dddbd | 391 | continue; /* ignore unrecognised types */ |
9d1c15ef | 392 | } |
e51c7be2 JH |
393 | if (ele[len]) /* not nul-terminated */ |
394 | ele = string_copyn(ele, len); | |
395 | ||
9acf6b94 | 396 | if (Ustrlen(ele) == len) /* ignore any with embedded nul */ |
b3ef41c9 | 397 | list = string_append_listele(list, osep, |
9e4dddbd | 398 | match == -1 ? string_sprintf("%s=%s", tag, ele) : ele); |
9d1c15ef JH |
399 | } |
400 | ||
9e4dddbd JH |
401 | sk_GENERAL_NAME_free(san); |
402 | return list; | |
9d1c15ef JH |
403 | } |
404 | ||
405 | uschar * | |
9e4dddbd | 406 | tls_cert_ocsp_uri(void * cert, uschar * mod) |
9d1c15ef JH |
407 | { |
408 | STACK_OF(ACCESS_DESCRIPTION) * ads = (STACK_OF(ACCESS_DESCRIPTION) *) | |
409 | X509_get_ext_d2i((X509 *)cert, NID_info_access, NULL, NULL); | |
410 | int adsnum = sk_ACCESS_DESCRIPTION_num(ads); | |
411 | int i; | |
9e4dddbd JH |
412 | uschar sep = '\n'; |
413 | uschar * list = NULL; | |
414 | ||
415 | if (mod) | |
416 | if (*mod == '>' && *++mod) sep = *mod++; | |
9d1c15ef JH |
417 | |
418 | for (i = 0; i < adsnum; i++) | |
419 | { | |
420 | ACCESS_DESCRIPTION * ad = sk_ACCESS_DESCRIPTION_value(ads, i); | |
421 | ||
422 | if (ad && OBJ_obj2nid(ad->method) == NID_ad_OCSP) | |
00ba27c5 JH |
423 | { |
424 | uschar * ele = ASN1_STRING_data(ad->location->d.ia5); | |
425 | int len = ASN1_STRING_length(ad->location->d.ia5); | |
426 | list = string_append_listele_n(list, sep, ele, len); | |
427 | } | |
9d1c15ef | 428 | } |
00ba27c5 | 429 | sk_ACCESS_DESCRIPTION_free(ads); |
9e4dddbd | 430 | return list; |
9d1c15ef JH |
431 | } |
432 | ||
433 | uschar * | |
9e4dddbd | 434 | tls_cert_crl_uri(void * cert, uschar * mod) |
9d1c15ef JH |
435 | { |
436 | STACK_OF(DIST_POINT) * dps = (STACK_OF(DIST_POINT) *) | |
437 | X509_get_ext_d2i((X509 *)cert, NID_crl_distribution_points, | |
438 | NULL, NULL); | |
439 | DIST_POINT * dp; | |
440 | int dpsnum = sk_DIST_POINT_num(dps); | |
441 | int i; | |
9e4dddbd JH |
442 | uschar sep = '\n'; |
443 | uschar * list = NULL; | |
444 | ||
445 | if (mod) | |
446 | if (*mod == '>' && *++mod) sep = *mod++; | |
9d1c15ef JH |
447 | |
448 | if (dps) for (i = 0; i < dpsnum; i++) | |
449 | if ((dp = sk_DIST_POINT_value(dps, i))) | |
450 | { | |
451 | STACK_OF(GENERAL_NAME) * names = dp->distpoint->name.fullname; | |
452 | GENERAL_NAME * np; | |
453 | int nnum = sk_GENERAL_NAME_num(names); | |
454 | int j; | |
455 | ||
456 | for (j = 0; j < nnum; j++) | |
457 | if ( (np = sk_GENERAL_NAME_value(names, j)) | |
458 | && np->type == GEN_URI | |
459 | ) | |
00ba27c5 JH |
460 | { |
461 | uschar * ele = ASN1_STRING_data(np->d.uniformResourceIdentifier); | |
462 | int len = ASN1_STRING_length(np->d.uniformResourceIdentifier); | |
463 | list = string_append_listele_n(list, sep, ele, len); | |
464 | } | |
9d1c15ef | 465 | } |
00ba27c5 | 466 | sk_DIST_POINT_free(dps); |
9e4dddbd | 467 | return list; |
9d1c15ef JH |
468 | } |
469 | ||
6a8a60e0 JH |
470 | |
471 | ||
472 | /***************************************************** | |
473 | * Certificate operator routines | |
474 | *****************************************************/ | |
59b87190 JH |
475 | uschar * |
476 | tls_cert_der_b64(void * cert) | |
477 | { | |
478 | BIO * bp = BIO_new(BIO_s_mem()); | |
479 | uschar * cp = NULL; | |
480 | ||
481 | if (!i2d_X509_bio(bp, (X509 *)cert)) | |
482 | log_write(0, LOG_MAIN, "TLS error in certificate export: %s", | |
483 | ERR_error_string(ERR_get_error(), NULL)); | |
484 | else | |
485 | { | |
486 | long len = BIO_get_mem_data(bp, &cp); | |
487 | cp = b64encode(cp, (int)len); | |
488 | } | |
489 | ||
490 | BIO_free(bp); | |
491 | return cp; | |
492 | } | |
493 | ||
494 | ||
6a8a60e0 JH |
495 | static uschar * |
496 | fingerprint(X509 * cert, const EVP_MD * fdig) | |
497 | { | |
498 | int j; | |
499 | unsigned int n; | |
500 | uschar md[EVP_MAX_MD_SIZE]; | |
501 | uschar * cp; | |
502 | ||
503 | if (!X509_digest(cert,fdig,md,&n)) | |
504 | { | |
505 | expand_string_message = US"tls_cert_fprt: out of mem\n"; | |
506 | return NULL; | |
507 | } | |
508 | cp = store_get(n*2+1); | |
e3dd1d67 | 509 | for (j = 0; j < (int)n; j++) sprintf(CS cp+2*j, "%02X", md[j]); |
6a8a60e0 JH |
510 | return(cp); |
511 | } | |
512 | ||
94431adb | 513 | uschar * |
6a8a60e0 JH |
514 | tls_cert_fprt_md5(void * cert) |
515 | { | |
516 | return fingerprint((X509 *)cert, EVP_md5()); | |
517 | } | |
518 | ||
94431adb | 519 | uschar * |
6a8a60e0 JH |
520 | tls_cert_fprt_sha1(void * cert) |
521 | { | |
522 | return fingerprint((X509 *)cert, EVP_sha1()); | |
523 | } | |
524 | ||
94431adb | 525 | uschar * |
9ef9101c JH |
526 | tls_cert_fprt_sha256(void * cert) |
527 | { | |
528 | return fingerprint((X509 *)cert, EVP_sha256()); | |
529 | } | |
530 | ||
6a8a60e0 | 531 | |
9d1c15ef JH |
532 | /* vi: aw ai sw=2 |
533 | */ | |
534 | /* End of tlscert-openssl.c */ |