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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); |
2f043896 | 73 | static int check(X509_STORE *ctx, char *file, STACK_OF(X509) *uchain, STACK_OF(X509) *tchain, int purpose); |
d4cec6a1 | 74 | static STACK_OF(X509) *load_untrusted(char *file); |
709e8595 | 75 | static int v_verbose=0, issuer_checks = 0; |
d02b48c6 | 76 | |
667ac4ec RE |
77 | int MAIN(int, char **); |
78 | ||
6b691a5c | 79 | int MAIN(int argc, char **argv) |
d02b48c6 RE |
80 | { |
81 | int i,ret=1; | |
d4cec6a1 | 82 | int purpose = -1; |
d02b48c6 | 83 | char *CApath=NULL,*CAfile=NULL; |
2f043896 DSH |
84 | char *untfile = NULL, *trustfile = NULL; |
85 | STACK_OF(X509) *untrusted = NULL, *trusted = NULL; | |
d02b48c6 RE |
86 | X509_STORE *cert_ctx=NULL; |
87 | X509_LOOKUP *lookup=NULL; | |
88 | ||
89 | cert_ctx=X509_STORE_new(); | |
90 | if (cert_ctx == NULL) goto end; | |
91 | X509_STORE_set_verify_cb_func(cert_ctx,cb); | |
92 | ||
93 | ERR_load_crypto_strings(); | |
94 | ||
95 | apps_startup(); | |
96 | ||
97 | if (bio_err == NULL) | |
98 | if ((bio_err=BIO_new(BIO_s_file())) != NULL) | |
58964a49 | 99 | BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT); |
d02b48c6 RE |
100 | |
101 | argc--; | |
102 | argv++; | |
103 | for (;;) | |
104 | { | |
105 | if (argc >= 1) | |
106 | { | |
107 | if (strcmp(*argv,"-CApath") == 0) | |
108 | { | |
109 | if (argc-- < 1) goto end; | |
110 | CApath= *(++argv); | |
111 | } | |
112 | else if (strcmp(*argv,"-CAfile") == 0) | |
113 | { | |
114 | if (argc-- < 1) goto end; | |
115 | CAfile= *(++argv); | |
116 | } | |
d4cec6a1 DSH |
117 | else if (strcmp(*argv,"-purpose") == 0) |
118 | { | |
119 | X509_PURPOSE *xptmp; | |
120 | if (argc-- < 1) goto end; | |
121 | i = X509_PURPOSE_get_by_sname(*(++argv)); | |
122 | if(i < 0) | |
123 | { | |
657e60fa | 124 | BIO_printf(bio_err, "unrecognized purpose\n"); |
d4cec6a1 DSH |
125 | goto end; |
126 | } | |
6d0d5431 | 127 | xptmp = X509_PURPOSE_get0(i); |
d4cec6a1 DSH |
128 | purpose = X509_PURPOSE_get_id(xptmp); |
129 | } | |
130 | else if (strcmp(*argv,"-untrusted") == 0) | |
131 | { | |
132 | if (argc-- < 1) goto end; | |
133 | untfile= *(++argv); | |
134 | } | |
2f043896 DSH |
135 | else if (strcmp(*argv,"-trusted") == 0) |
136 | { | |
137 | if (argc-- < 1) goto end; | |
138 | trustfile= *(++argv); | |
139 | } | |
d02b48c6 RE |
140 | else if (strcmp(*argv,"-help") == 0) |
141 | goto end; | |
709e8595 DSH |
142 | else if (strcmp(*argv,"-issuer_checks") == 0) |
143 | issuer_checks=1; | |
d02b48c6 RE |
144 | else if (strcmp(*argv,"-verbose") == 0) |
145 | v_verbose=1; | |
146 | else if (argv[0][0] == '-') | |
147 | goto end; | |
148 | else | |
149 | break; | |
150 | argc--; | |
151 | argv++; | |
152 | } | |
153 | else | |
154 | break; | |
155 | } | |
156 | ||
157 | lookup=X509_STORE_add_lookup(cert_ctx,X509_LOOKUP_file()); | |
158 | if (lookup == NULL) abort(); | |
52664f50 DSH |
159 | if (CAfile) { |
160 | i=X509_LOOKUP_load_file(lookup,CAfile,X509_FILETYPE_PEM); | |
161 | if(!i) { | |
162 | BIO_printf(bio_err, "Error loading file %s\n", CAfile); | |
163 | ERR_print_errors(bio_err); | |
164 | goto end; | |
165 | } | |
166 | } else X509_LOOKUP_load_file(lookup,NULL,X509_FILETYPE_DEFAULT); | |
d02b48c6 RE |
167 | |
168 | lookup=X509_STORE_add_lookup(cert_ctx,X509_LOOKUP_hash_dir()); | |
169 | if (lookup == NULL) abort(); | |
52664f50 DSH |
170 | if (CApath) { |
171 | i=X509_LOOKUP_add_dir(lookup,CApath,X509_FILETYPE_PEM); | |
172 | if(!i) { | |
173 | BIO_printf(bio_err, "Error loading directory %s\n", CApath); | |
174 | ERR_print_errors(bio_err); | |
175 | goto end; | |
176 | } | |
177 | } else X509_LOOKUP_add_dir(lookup,NULL,X509_FILETYPE_DEFAULT); | |
d02b48c6 | 178 | |
dfeab068 | 179 | ERR_clear_error(); |
d4cec6a1 DSH |
180 | |
181 | if(untfile) { | |
182 | if(!(untrusted = load_untrusted(untfile))) { | |
183 | BIO_printf(bio_err, "Error loading untrusted file %s\n", untfile); | |
184 | ERR_print_errors(bio_err); | |
185 | goto end; | |
186 | } | |
187 | } | |
188 | ||
2f043896 DSH |
189 | if(trustfile) { |
190 | if(!(trusted = load_untrusted(trustfile))) { | |
191 | BIO_printf(bio_err, "Error loading untrusted file %s\n", trustfile); | |
192 | ERR_print_errors(bio_err); | |
193 | goto end; | |
194 | } | |
195 | } | |
196 | ||
197 | if (argc < 1) check(cert_ctx, NULL, untrusted, trusted, purpose); | |
d02b48c6 RE |
198 | else |
199 | for (i=0; i<argc; i++) | |
2f043896 | 200 | check(cert_ctx,argv[i], untrusted, trusted, purpose); |
d02b48c6 RE |
201 | ret=0; |
202 | end: | |
d4cec6a1 | 203 | if (ret == 1) { |
25063f1d | 204 | BIO_printf(bio_err,"usage: verify [-verbose] [-CApath path] [-CAfile file] [-purpose purpose] cert1 cert2 ...\n"); |
657e60fa | 205 | BIO_printf(bio_err,"recognized usages:\n"); |
d4cec6a1 DSH |
206 | for(i = 0; i < X509_PURPOSE_get_count(); i++) { |
207 | X509_PURPOSE *ptmp; | |
6d0d5431 | 208 | ptmp = X509_PURPOSE_get0(i); |
c7cb16a8 DSH |
209 | BIO_printf(bio_err, "\t%-10s\t%s\n", X509_PURPOSE_get0_sname(ptmp), |
210 | X509_PURPOSE_get0_name(ptmp)); | |
d4cec6a1 DSH |
211 | } |
212 | } | |
d02b48c6 | 213 | if (cert_ctx != NULL) X509_STORE_free(cert_ctx); |
d4cec6a1 | 214 | sk_X509_pop_free(untrusted, X509_free); |
2f043896 | 215 | sk_X509_pop_free(trusted, X509_free); |
d02b48c6 RE |
216 | EXIT(ret); |
217 | } | |
218 | ||
2f043896 | 219 | static int check(X509_STORE *ctx, char *file, STACK_OF(X509) *uchain, STACK_OF(X509) *tchain, int purpose) |
d02b48c6 RE |
220 | { |
221 | X509 *x=NULL; | |
222 | BIO *in=NULL; | |
223 | int i=0,ret=0; | |
d4cec6a1 | 224 | X509_STORE_CTX *csc; |
d02b48c6 RE |
225 | |
226 | in=BIO_new(BIO_s_file()); | |
227 | if (in == NULL) | |
228 | { | |
229 | ERR_print_errors(bio_err); | |
230 | goto end; | |
231 | } | |
232 | ||
233 | if (file == NULL) | |
234 | BIO_set_fp(in,stdin,BIO_NOCLOSE); | |
235 | else | |
236 | { | |
237 | if (BIO_read_filename(in,file) <= 0) | |
238 | { | |
239 | perror(file); | |
240 | goto end; | |
241 | } | |
242 | } | |
243 | ||
74678cc2 | 244 | x=PEM_read_bio_X509(in,NULL,NULL,NULL); |
d02b48c6 RE |
245 | if (x == NULL) |
246 | { | |
247 | fprintf(stdout,"%s: unable to load certificate file\n", | |
248 | (file == NULL)?"stdin":file); | |
249 | ERR_print_errors(bio_err); | |
250 | goto end; | |
251 | } | |
252 | fprintf(stdout,"%s: ",(file == NULL)?"stdin":file); | |
253 | ||
d4cec6a1 DSH |
254 | csc = X509_STORE_CTX_new(); |
255 | if (csc == NULL) | |
256 | { | |
257 | ERR_print_errors(bio_err); | |
258 | goto end; | |
259 | } | |
260 | X509_STORE_CTX_init(csc,ctx,x,uchain); | |
2f043896 | 261 | if(tchain) X509_STORE_CTX_trusted_stack(csc, tchain); |
13938ace | 262 | if(purpose >= 0) X509_STORE_CTX_set_purpose(csc, purpose); |
709e8595 DSH |
263 | if(issuer_checks) |
264 | X509_STORE_CTX_set_flags(csc, X509_V_FLAG_CB_ISSUER_CHECK); | |
d4cec6a1 DSH |
265 | i=X509_verify_cert(csc); |
266 | X509_STORE_CTX_free(csc); | |
d02b48c6 RE |
267 | |
268 | ret=0; | |
269 | end: | |
270 | if (i) | |
271 | { | |
272 | fprintf(stdout,"OK\n"); | |
273 | ret=1; | |
274 | } | |
275 | else | |
276 | ERR_print_errors(bio_err); | |
277 | if (x != NULL) X509_free(x); | |
278 | if (in != NULL) BIO_free(in); | |
279 | ||
280 | return(ret); | |
281 | } | |
282 | ||
d4cec6a1 DSH |
283 | static STACK_OF(X509) *load_untrusted(char *certfile) |
284 | { | |
285 | STACK_OF(X509_INFO) *sk=NULL; | |
286 | STACK_OF(X509) *stack=NULL, *ret=NULL; | |
287 | BIO *in=NULL; | |
288 | X509_INFO *xi; | |
289 | ||
290 | if(!(stack = sk_X509_new_null())) { | |
291 | BIO_printf(bio_err,"memory allocation failure\n"); | |
292 | goto end; | |
293 | } | |
294 | ||
295 | if(!(in=BIO_new_file(certfile, "r"))) { | |
296 | BIO_printf(bio_err,"error opening the file, %s\n",certfile); | |
297 | goto end; | |
298 | } | |
299 | ||
300 | /* This loads from a file, a stack of x509/crl/pkey sets */ | |
301 | if(!(sk=PEM_X509_INFO_read_bio(in,NULL,NULL,NULL))) { | |
302 | BIO_printf(bio_err,"error reading the file, %s\n",certfile); | |
303 | goto end; | |
304 | } | |
305 | ||
306 | /* scan over it and pull out the certs */ | |
307 | while (sk_X509_INFO_num(sk)) | |
308 | { | |
309 | xi=sk_X509_INFO_shift(sk); | |
310 | if (xi->x509 != NULL) | |
311 | { | |
312 | sk_X509_push(stack,xi->x509); | |
313 | xi->x509=NULL; | |
314 | } | |
315 | X509_INFO_free(xi); | |
316 | } | |
317 | if(!sk_X509_num(stack)) { | |
318 | BIO_printf(bio_err,"no certificates in file, %s\n",certfile); | |
319 | sk_X509_free(stack); | |
320 | goto end; | |
321 | } | |
322 | ret=stack; | |
323 | end: | |
324 | BIO_free(in); | |
325 | sk_X509_INFO_free(sk); | |
326 | return(ret); | |
327 | } | |
328 | ||
6b691a5c | 329 | static int MS_CALLBACK cb(int ok, X509_STORE_CTX *ctx) |
d02b48c6 RE |
330 | { |
331 | char buf[256]; | |
332 | ||
333 | if (!ok) | |
334 | { | |
f76d8c47 | 335 | X509_NAME_oneline( |
d02b48c6 | 336 | X509_get_subject_name(ctx->current_cert),buf,256); |
f76d8c47 DSH |
337 | printf("%s\n",buf); |
338 | printf("error %d at %d depth lookup:%s\n",ctx->error, | |
339 | ctx->error_depth, | |
340 | X509_verify_cert_error_string(ctx->error)); | |
341 | if (ctx->error == X509_V_ERR_CERT_HAS_EXPIRED) ok=1; | |
342 | /* since we are just checking the certificates, it is | |
343 | * ok if they are self signed. But we should still warn | |
344 | * the user. | |
345 | */ | |
346 | if (ctx->error == X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT) ok=1; | |
d4cec6a1 DSH |
347 | /* Continue after extension errors too */ |
348 | if (ctx->error == X509_V_ERR_INVALID_CA) ok=1; | |
349 | if (ctx->error == X509_V_ERR_PATH_LENGTH_EXCEEDED) ok=1; | |
350 | if (ctx->error == X509_V_ERR_INVALID_PURPOSE) ok=1; | |
351 | if (ctx->error == X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT) ok=1; | |
d02b48c6 RE |
352 | } |
353 | if (!v_verbose) | |
354 | ERR_clear_error(); | |
355 | return(ok); | |
356 | } | |
357 |