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d02b48c6 | 1 | /* apps/verify.c */ |
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 | */ | |
58 | ||
59 | #include <stdio.h> | |
60 | #include <stdlib.h> | |
61 | #include <string.h> | |
62 | #include "apps.h" | |
ec577822 BM |
63 | #include <openssl/bio.h> |
64 | #include <openssl/err.h> | |
65 | #include <openssl/x509.h> | |
d4cec6a1 | 66 | #include <openssl/x509v3.h> |
ec577822 | 67 | #include <openssl/pem.h> |
d02b48c6 RE |
68 | |
69 | #undef PROG | |
70 | #define PROG verify_main | |
71 | ||
d02b48c6 | 72 | static int MS_CALLBACK cb(int ok, X509_STORE_CTX *ctx); |
7953b8ff | 73 | static int check(X509_STORE *ctx, char *file, STACK_OF(X509) *uchain, STACK_OF(X509) *tchain, int purpose, ENGINE *e); |
d4cec6a1 | 74 | static STACK_OF(X509) *load_untrusted(char *file); |
b545dc67 | 75 | static int v_verbose=0, vflags = 0; |
d02b48c6 | 76 | |
667ac4ec RE |
77 | int MAIN(int, char **); |
78 | ||
6b691a5c | 79 | int MAIN(int argc, char **argv) |
d02b48c6 | 80 | { |
5270e702 | 81 | ENGINE *e = NULL; |
c431798e | 82 | int i,ret=1, badarg = 0; |
d4cec6a1 | 83 | int purpose = -1; |
d02b48c6 | 84 | char *CApath=NULL,*CAfile=NULL; |
2f043896 DSH |
85 | char *untfile = NULL, *trustfile = NULL; |
86 | STACK_OF(X509) *untrusted = NULL, *trusted = NULL; | |
d02b48c6 RE |
87 | X509_STORE *cert_ctx=NULL; |
88 | X509_LOOKUP *lookup=NULL; | |
c431798e | 89 | X509_VERIFY_PARAM *vpm = NULL; |
0b13e9f0 | 90 | #ifndef OPENSSL_NO_ENGINE |
5270e702 | 91 | char *engine=NULL; |
0b13e9f0 | 92 | #endif |
d02b48c6 RE |
93 | |
94 | cert_ctx=X509_STORE_new(); | |
95 | if (cert_ctx == NULL) goto end; | |
96 | X509_STORE_set_verify_cb_func(cert_ctx,cb); | |
97 | ||
98 | ERR_load_crypto_strings(); | |
99 | ||
100 | apps_startup(); | |
101 | ||
102 | if (bio_err == NULL) | |
103 | if ((bio_err=BIO_new(BIO_s_file())) != NULL) | |
58964a49 | 104 | BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT); |
d02b48c6 | 105 | |
3647bee2 DSH |
106 | if (!load_config(bio_err, NULL)) |
107 | goto end; | |
108 | ||
d02b48c6 RE |
109 | argc--; |
110 | argv++; | |
111 | for (;;) | |
112 | { | |
113 | if (argc >= 1) | |
114 | { | |
115 | if (strcmp(*argv,"-CApath") == 0) | |
116 | { | |
117 | if (argc-- < 1) goto end; | |
118 | CApath= *(++argv); | |
119 | } | |
120 | else if (strcmp(*argv,"-CAfile") == 0) | |
121 | { | |
122 | if (argc-- < 1) goto end; | |
123 | CAfile= *(++argv); | |
124 | } | |
c431798e DSH |
125 | else if (args_verify(&argv, &argc, &badarg, bio_err, |
126 | &vpm)) | |
d4cec6a1 | 127 | { |
c431798e | 128 | if (badarg) |
d4cec6a1 | 129 | goto end; |
c431798e | 130 | continue; |
d4cec6a1 DSH |
131 | } |
132 | else if (strcmp(*argv,"-untrusted") == 0) | |
133 | { | |
134 | if (argc-- < 1) goto end; | |
135 | untfile= *(++argv); | |
136 | } | |
2f043896 DSH |
137 | else if (strcmp(*argv,"-trusted") == 0) |
138 | { | |
139 | if (argc-- < 1) goto end; | |
140 | trustfile= *(++argv); | |
141 | } | |
0b13e9f0 | 142 | #ifndef OPENSSL_NO_ENGINE |
5270e702 RL |
143 | else if (strcmp(*argv,"-engine") == 0) |
144 | { | |
145 | if (--argc < 1) goto end; | |
146 | engine= *(++argv); | |
147 | } | |
0b13e9f0 | 148 | #endif |
d02b48c6 RE |
149 | else if (strcmp(*argv,"-help") == 0) |
150 | goto end; | |
151 | else if (strcmp(*argv,"-verbose") == 0) | |
152 | v_verbose=1; | |
153 | else if (argv[0][0] == '-') | |
154 | goto end; | |
155 | else | |
156 | break; | |
157 | argc--; | |
158 | argv++; | |
159 | } | |
160 | else | |
161 | break; | |
162 | } | |
163 | ||
0b13e9f0 | 164 | #ifndef OPENSSL_NO_ENGINE |
531d630b | 165 | e = setup_engine(bio_err, engine, 0); |
0b13e9f0 | 166 | #endif |
5270e702 | 167 | |
c431798e DSH |
168 | if (vpm) |
169 | X509_STORE_set1_param(cert_ctx, vpm); | |
170 | ||
d02b48c6 RE |
171 | lookup=X509_STORE_add_lookup(cert_ctx,X509_LOOKUP_file()); |
172 | if (lookup == NULL) abort(); | |
52664f50 DSH |
173 | if (CAfile) { |
174 | i=X509_LOOKUP_load_file(lookup,CAfile,X509_FILETYPE_PEM); | |
175 | if(!i) { | |
176 | BIO_printf(bio_err, "Error loading file %s\n", CAfile); | |
177 | ERR_print_errors(bio_err); | |
178 | goto end; | |
179 | } | |
180 | } else X509_LOOKUP_load_file(lookup,NULL,X509_FILETYPE_DEFAULT); | |
d02b48c6 RE |
181 | |
182 | lookup=X509_STORE_add_lookup(cert_ctx,X509_LOOKUP_hash_dir()); | |
183 | if (lookup == NULL) abort(); | |
52664f50 DSH |
184 | if (CApath) { |
185 | i=X509_LOOKUP_add_dir(lookup,CApath,X509_FILETYPE_PEM); | |
186 | if(!i) { | |
187 | BIO_printf(bio_err, "Error loading directory %s\n", CApath); | |
188 | ERR_print_errors(bio_err); | |
189 | goto end; | |
190 | } | |
191 | } else X509_LOOKUP_add_dir(lookup,NULL,X509_FILETYPE_DEFAULT); | |
d02b48c6 | 192 | |
dfeab068 | 193 | ERR_clear_error(); |
d4cec6a1 DSH |
194 | |
195 | if(untfile) { | |
196 | if(!(untrusted = load_untrusted(untfile))) { | |
197 | BIO_printf(bio_err, "Error loading untrusted file %s\n", untfile); | |
198 | ERR_print_errors(bio_err); | |
199 | goto end; | |
200 | } | |
201 | } | |
202 | ||
2f043896 DSH |
203 | if(trustfile) { |
204 | if(!(trusted = load_untrusted(trustfile))) { | |
205 | BIO_printf(bio_err, "Error loading untrusted file %s\n", trustfile); | |
206 | ERR_print_errors(bio_err); | |
207 | goto end; | |
208 | } | |
209 | } | |
210 | ||
7953b8ff | 211 | if (argc < 1) check(cert_ctx, NULL, untrusted, trusted, purpose, e); |
d02b48c6 RE |
212 | else |
213 | for (i=0; i<argc; i++) | |
7953b8ff | 214 | check(cert_ctx,argv[i], untrusted, trusted, purpose, e); |
d02b48c6 RE |
215 | ret=0; |
216 | end: | |
d4cec6a1 | 217 | if (ret == 1) { |
0b13e9f0 RL |
218 | BIO_printf(bio_err,"usage: verify [-verbose] [-CApath path] [-CAfile file] [-purpose purpose] [-crl_check]"); |
219 | #ifndef OPENSSL_NO_ENGINE | |
220 | BIO_printf(bio_err," [-engine e]"); | |
221 | #endif | |
222 | BIO_printf(bio_err," cert1 cert2 ...\n"); | |
657e60fa | 223 | BIO_printf(bio_err,"recognized usages:\n"); |
d4cec6a1 DSH |
224 | for(i = 0; i < X509_PURPOSE_get_count(); i++) { |
225 | X509_PURPOSE *ptmp; | |
6d0d5431 | 226 | ptmp = X509_PURPOSE_get0(i); |
c7cb16a8 DSH |
227 | BIO_printf(bio_err, "\t%-10s\t%s\n", X509_PURPOSE_get0_sname(ptmp), |
228 | X509_PURPOSE_get0_name(ptmp)); | |
d4cec6a1 DSH |
229 | } |
230 | } | |
c431798e | 231 | if (vpm) X509_VERIFY_PARAM_free(vpm); |
d02b48c6 | 232 | if (cert_ctx != NULL) X509_STORE_free(cert_ctx); |
d4cec6a1 | 233 | sk_X509_pop_free(untrusted, X509_free); |
2f043896 | 234 | sk_X509_pop_free(trusted, X509_free); |
7953b8ff | 235 | apps_shutdown(); |
1c3e4a36 | 236 | OPENSSL_EXIT(ret); |
d02b48c6 RE |
237 | } |
238 | ||
7953b8ff | 239 | static int check(X509_STORE *ctx, char *file, STACK_OF(X509) *uchain, STACK_OF(X509) *tchain, int purpose, ENGINE *e) |
d02b48c6 RE |
240 | { |
241 | X509 *x=NULL; | |
d02b48c6 | 242 | int i=0,ret=0; |
d4cec6a1 | 243 | X509_STORE_CTX *csc; |
d02b48c6 | 244 | |
7953b8ff | 245 | x = load_cert(bio_err, file, FORMAT_PEM, NULL, e, "certificate file"); |
d02b48c6 | 246 | if (x == NULL) |
d02b48c6 | 247 | goto end; |
d02b48c6 RE |
248 | fprintf(stdout,"%s: ",(file == NULL)?"stdin":file); |
249 | ||
d4cec6a1 DSH |
250 | csc = X509_STORE_CTX_new(); |
251 | if (csc == NULL) | |
252 | { | |
253 | ERR_print_errors(bio_err); | |
254 | goto end; | |
255 | } | |
bdee69f7 | 256 | X509_STORE_set_flags(ctx, vflags); |
79aa04ef GT |
257 | if(!X509_STORE_CTX_init(csc,ctx,x,uchain)) |
258 | { | |
259 | ERR_print_errors(bio_err); | |
260 | goto end; | |
261 | } | |
2f043896 | 262 | if(tchain) X509_STORE_CTX_trusted_stack(csc, tchain); |
13938ace | 263 | if(purpose >= 0) X509_STORE_CTX_set_purpose(csc, purpose); |
d4cec6a1 DSH |
264 | i=X509_verify_cert(csc); |
265 | X509_STORE_CTX_free(csc); | |
d02b48c6 RE |
266 | |
267 | ret=0; | |
268 | end: | |
bab53405 | 269 | if (i > 0) |
d02b48c6 RE |
270 | { |
271 | fprintf(stdout,"OK\n"); | |
272 | ret=1; | |
273 | } | |
274 | else | |
275 | ERR_print_errors(bio_err); | |
276 | if (x != NULL) X509_free(x); | |
d02b48c6 RE |
277 | |
278 | return(ret); | |
279 | } | |
280 | ||
d4cec6a1 DSH |
281 | static STACK_OF(X509) *load_untrusted(char *certfile) |
282 | { | |
283 | STACK_OF(X509_INFO) *sk=NULL; | |
284 | STACK_OF(X509) *stack=NULL, *ret=NULL; | |
285 | BIO *in=NULL; | |
286 | X509_INFO *xi; | |
287 | ||
288 | if(!(stack = sk_X509_new_null())) { | |
289 | BIO_printf(bio_err,"memory allocation failure\n"); | |
290 | goto end; | |
291 | } | |
292 | ||
293 | if(!(in=BIO_new_file(certfile, "r"))) { | |
294 | BIO_printf(bio_err,"error opening the file, %s\n",certfile); | |
295 | goto end; | |
296 | } | |
297 | ||
298 | /* This loads from a file, a stack of x509/crl/pkey sets */ | |
299 | if(!(sk=PEM_X509_INFO_read_bio(in,NULL,NULL,NULL))) { | |
300 | BIO_printf(bio_err,"error reading the file, %s\n",certfile); | |
301 | goto end; | |
302 | } | |
303 | ||
304 | /* scan over it and pull out the certs */ | |
305 | while (sk_X509_INFO_num(sk)) | |
306 | { | |
307 | xi=sk_X509_INFO_shift(sk); | |
308 | if (xi->x509 != NULL) | |
309 | { | |
310 | sk_X509_push(stack,xi->x509); | |
311 | xi->x509=NULL; | |
312 | } | |
313 | X509_INFO_free(xi); | |
314 | } | |
315 | if(!sk_X509_num(stack)) { | |
316 | BIO_printf(bio_err,"no certificates in file, %s\n",certfile); | |
317 | sk_X509_free(stack); | |
318 | goto end; | |
319 | } | |
320 | ret=stack; | |
321 | end: | |
322 | BIO_free(in); | |
323 | sk_X509_INFO_free(sk); | |
324 | return(ret); | |
325 | } | |
326 | ||
6b691a5c | 327 | static int MS_CALLBACK cb(int ok, X509_STORE_CTX *ctx) |
d02b48c6 RE |
328 | { |
329 | char buf[256]; | |
330 | ||
331 | if (!ok) | |
332 | { | |
c431798e DSH |
333 | if (ctx->current_cert) |
334 | { | |
335 | X509_NAME_oneline( | |
54a656ef BL |
336 | X509_get_subject_name(ctx->current_cert),buf, |
337 | sizeof buf); | |
c431798e DSH |
338 | printf("%s\n",buf); |
339 | } | |
f76d8c47 DSH |
340 | printf("error %d at %d depth lookup:%s\n",ctx->error, |
341 | ctx->error_depth, | |
342 | X509_verify_cert_error_string(ctx->error)); | |
343 | if (ctx->error == X509_V_ERR_CERT_HAS_EXPIRED) ok=1; | |
344 | /* since we are just checking the certificates, it is | |
345 | * ok if they are self signed. But we should still warn | |
346 | * the user. | |
347 | */ | |
348 | if (ctx->error == X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT) ok=1; | |
d4cec6a1 DSH |
349 | /* Continue after extension errors too */ |
350 | if (ctx->error == X509_V_ERR_INVALID_CA) ok=1; | |
30b415b0 | 351 | if (ctx->error == X509_V_ERR_INVALID_NON_CA) ok=1; |
d4cec6a1 DSH |
352 | if (ctx->error == X509_V_ERR_PATH_LENGTH_EXCEEDED) ok=1; |
353 | if (ctx->error == X509_V_ERR_INVALID_PURPOSE) ok=1; | |
354 | if (ctx->error == X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT) ok=1; | |
b545dc67 DSH |
355 | if (ctx->error == X509_V_ERR_CRL_HAS_EXPIRED) ok=1; |
356 | if (ctx->error == X509_V_ERR_CRL_NOT_YET_VALID) ok=1; | |
f1558bb4 | 357 | if (ctx->error == X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION) ok=1; |
c431798e DSH |
358 | |
359 | if (ctx->error == X509_V_ERR_NO_EXPLICIT_POLICY) | |
360 | policies_print(NULL, ctx); | |
361 | return ok; | |
362 | ||
d02b48c6 | 363 | } |
c431798e DSH |
364 | if ((ctx->error == X509_V_OK) && (ok == 2)) |
365 | policies_print(NULL, ctx); | |
d02b48c6 RE |
366 | if (!v_verbose) |
367 | ERR_clear_error(); | |
368 | return(ok); | |
369 | } |