1 /* apps/verify.c */
2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
3 * All rights reserved.
4 *
5 * This package is an SSL implementation written
6 * by Eric Young (eay@cryptsoft.com).
7 * The implementation was written so as to conform with Netscapes SSL.
8 *
9 * This library is free for commercial and non-commercial use as long as
10 * the following conditions are aheared to. The following conditions
11 * apply to all code found in this distribution, be it the RC4, RSA,
12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
13 * included with this distribution is covered by the same copyright terms
14 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
15 *
16 * Copyright remains Eric Young's, and as such any Copyright notices in
17 * the code are not to be removed.
18 * If this package is used in a product, Eric Young should be given attribution
19 * as the author of the parts of the library used.
20 * This can be in the form of a textual message at program startup or
21 * in documentation (online or textual) provided with the package.
22 *
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
25 * are met:
26 * 1. Redistributions of source code must retain the copyright
27 * notice, this list of conditions and the following disclaimer.
28 * 2. Redistributions in binary form must reproduce the above copyright
29 * notice, this list of conditions and the following disclaimer in the
30 * documentation and/or other materials provided with the distribution.
31 * 3. All advertising materials mentioning features or use of this software
32 * must display the following acknowledgement:
33 * "This product includes cryptographic software written by
34 * Eric Young (eay@cryptsoft.com)"
35 * The word 'cryptographic' can be left out if the rouines from the library
36 * being used are not cryptographic related :-).
37 * 4. If you include any Windows specific code (or a derivative thereof) from
38 * the apps directory (application code) you must include an acknowledgement:
39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
40 *
41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
51 * SUCH DAMAGE.
52 *
53 * The licence and distribution terms for any publically available version or
54 * derivative of this code cannot be changed. i.e. this code cannot simply be
55 * copied and put under another distribution licence
56 * [including the GNU Public Licence.]
57 */
58
59 #include <stdio.h>
60 #include <stdlib.h>
61 #include <string.h>
62 #include "apps.h"
63 #include <openssl/bio.h>
64 #include <openssl/err.h>
65 #include <openssl/x509.h>
66 #include <openssl/x509v3.h>
67 #include <openssl/pem.h>
68
69 #undef PROG
70 #define PROG verify_main
71
72 static int MS_CALLBACK cb(int ok, X509_STORE_CTX *ctx);
73 static int check(X509_STORE *ctx, char *file,
74 STACK_OF(X509) *uchain, STACK_OF(X509) *tchain,
75 STACK_OF(X509_CRL) *crls, ENGINE *e);
76 static int v_verbose=0, vflags = 0;
77
78 int MAIN(int, char **);
79
MAIN(int argc,char ** argv)80 int MAIN(int argc, char **argv)
81 {
82 ENGINE *e = NULL;
83 int i,ret=1, badarg = 0;
84 char *CApath=NULL,*CAfile=NULL;
85 char *untfile = NULL, *trustfile = NULL, *crlfile = NULL;
86 STACK_OF(X509) *untrusted = NULL, *trusted = NULL;
87 STACK_OF(X509_CRL) *crls = NULL;
88 X509_STORE *cert_ctx=NULL;
89 X509_LOOKUP *lookup=NULL;
90 X509_VERIFY_PARAM *vpm = NULL;
91 #ifndef OPENSSL_NO_ENGINE
92 char *engine=NULL;
93 #endif
94
95 cert_ctx=X509_STORE_new();
96 if (cert_ctx == NULL) goto end;
97 X509_STORE_set_verify_cb(cert_ctx,cb);
98
99 ERR_load_crypto_strings();
100
101 apps_startup();
102
103 if (bio_err == NULL)
104 if ((bio_err=BIO_new(BIO_s_file())) != NULL)
105 BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT);
106
107 if (!load_config(bio_err, NULL))
108 goto end;
109
110 argc--;
111 argv++;
112 for (;;)
113 {
114 if (argc >= 1)
115 {
116 if (strcmp(*argv,"-CApath") == 0)
117 {
118 if (argc-- < 1) goto end;
119 CApath= *(++argv);
120 }
121 else if (strcmp(*argv,"-CAfile") == 0)
122 {
123 if (argc-- < 1) goto end;
124 CAfile= *(++argv);
125 }
126 else if (args_verify(&argv, &argc, &badarg, bio_err,
127 &vpm))
128 {
129 if (badarg)
130 goto end;
131 continue;
132 }
133 else if (strcmp(*argv,"-untrusted") == 0)
134 {
135 if (argc-- < 1) goto end;
136 untfile= *(++argv);
137 }
138 else if (strcmp(*argv,"-trusted") == 0)
139 {
140 if (argc-- < 1) goto end;
141 trustfile= *(++argv);
142 }
143 else if (strcmp(*argv,"-CRLfile") == 0)
144 {
145 if (argc-- < 1) goto end;
146 crlfile= *(++argv);
147 }
148 #ifndef OPENSSL_NO_ENGINE
149 else if (strcmp(*argv,"-engine") == 0)
150 {
151 if (--argc < 1) goto end;
152 engine= *(++argv);
153 }
154 #endif
155 else if (strcmp(*argv,"-help") == 0)
156 goto end;
157 else if (strcmp(*argv,"-verbose") == 0)
158 v_verbose=1;
159 else if (argv[0][0] == '-')
160 goto end;
161 else
162 break;
163 argc--;
164 argv++;
165 }
166 else
167 break;
168 }
169
170 #ifndef OPENSSL_NO_ENGINE
171 e = setup_engine(bio_err, engine, 0);
172 #endif
173
174 if (vpm)
175 X509_STORE_set1_param(cert_ctx, vpm);
176
177 lookup=X509_STORE_add_lookup(cert_ctx,X509_LOOKUP_file());
178 if (lookup == NULL) abort();
179 if (CAfile) {
180 i=X509_LOOKUP_load_file(lookup,CAfile,X509_FILETYPE_PEM);
181 if(!i) {
182 BIO_printf(bio_err, "Error loading file %s\n", CAfile);
183 ERR_print_errors(bio_err);
184 goto end;
185 }
186 } else X509_LOOKUP_load_file(lookup,NULL,X509_FILETYPE_DEFAULT);
187
188 lookup=X509_STORE_add_lookup(cert_ctx,X509_LOOKUP_hash_dir());
189 if (lookup == NULL) abort();
190 if (CApath) {
191 i=X509_LOOKUP_add_dir(lookup,CApath,X509_FILETYPE_PEM);
192 if(!i) {
193 BIO_printf(bio_err, "Error loading directory %s\n", CApath);
194 ERR_print_errors(bio_err);
195 goto end;
196 }
197 } else X509_LOOKUP_add_dir(lookup,NULL,X509_FILETYPE_DEFAULT);
198
199 ERR_clear_error();
200
201 if(untfile)
202 {
203 untrusted = load_certs(bio_err, untfile, FORMAT_PEM,
204 NULL, e, "untrusted certificates");
205 if(!untrusted)
206 goto end;
207 }
208
209 if(trustfile)
210 {
211 trusted = load_certs(bio_err, trustfile, FORMAT_PEM,
212 NULL, e, "trusted certificates");
213 if(!trusted)
214 goto end;
215 }
216
217 if(crlfile)
218 {
219 crls = load_crls(bio_err, crlfile, FORMAT_PEM,
220 NULL, e, "other CRLs");
221 if(!crls)
222 goto end;
223 }
224
225 if (argc < 1) check(cert_ctx, NULL, untrusted, trusted, crls, e);
226 else
227 for (i=0; i<argc; i++)
228 check(cert_ctx,argv[i], untrusted, trusted, crls, e);
229 ret=0;
230 end:
231 if (ret == 1) {
232 BIO_printf(bio_err,"usage: verify [-verbose] [-CApath path] [-CAfile file] [-purpose purpose] [-crl_check]");
233 #ifndef OPENSSL_NO_ENGINE
234 BIO_printf(bio_err," [-engine e]");
235 #endif
236 BIO_printf(bio_err," cert1 cert2 ...\n");
237 BIO_printf(bio_err,"recognized usages:\n");
238 for(i = 0; i < X509_PURPOSE_get_count(); i++) {
239 X509_PURPOSE *ptmp;
240 ptmp = X509_PURPOSE_get0(i);
241 BIO_printf(bio_err, "\t%-10s\t%s\n", X509_PURPOSE_get0_sname(ptmp),
242 X509_PURPOSE_get0_name(ptmp));
243 }
244 }
245 if (vpm) X509_VERIFY_PARAM_free(vpm);
246 if (cert_ctx != NULL) X509_STORE_free(cert_ctx);
247 sk_X509_pop_free(untrusted, X509_free);
248 sk_X509_pop_free(trusted, X509_free);
249 sk_X509_CRL_pop_free(crls, X509_CRL_free);
250 apps_shutdown();
251 OPENSSL_EXIT(ret);
252 }
253
check(X509_STORE * ctx,char * file,STACK_OF (X509)* uchain,STACK_OF (X509)* tchain,STACK_OF (X509_CRL)* crls,ENGINE * e)254 static int check(X509_STORE *ctx, char *file,
255 STACK_OF(X509) *uchain, STACK_OF(X509) *tchain,
256 STACK_OF(X509_CRL) *crls, ENGINE *e)
257 {
258 X509 *x=NULL;
259 int i=0,ret=0;
260 X509_STORE_CTX *csc;
261
262 x = load_cert(bio_err, file, FORMAT_PEM, NULL, e, "certificate file");
263 if (x == NULL)
264 goto end;
265 fprintf(stdout,"%s: ",(file == NULL)?"stdin":file);
266
267 csc = X509_STORE_CTX_new();
268 if (csc == NULL)
269 {
270 ERR_print_errors(bio_err);
271 goto end;
272 }
273 X509_STORE_set_flags(ctx, vflags);
274 if(!X509_STORE_CTX_init(csc,ctx,x,uchain))
275 {
276 ERR_print_errors(bio_err);
277 goto end;
278 }
279 if(tchain) X509_STORE_CTX_trusted_stack(csc, tchain);
280 if (crls)
281 X509_STORE_CTX_set0_crls(csc, crls);
282 i=X509_verify_cert(csc);
283 X509_STORE_CTX_free(csc);
284
285 ret=0;
286 end:
287 if (i > 0)
288 {
289 fprintf(stdout,"OK\n");
290 ret=1;
291 }
292 else
293 ERR_print_errors(bio_err);
294 if (x != NULL) X509_free(x);
295
296 return(ret);
297 }
298
cb(int ok,X509_STORE_CTX * ctx)299 static int MS_CALLBACK cb(int ok, X509_STORE_CTX *ctx)
300 {
301 int cert_error = X509_STORE_CTX_get_error(ctx);
302 X509 *current_cert = X509_STORE_CTX_get_current_cert(ctx);
303
304 if (!ok)
305 {
306 if (current_cert)
307 {
308 X509_NAME_print_ex_fp(stdout,
309 X509_get_subject_name(current_cert),
310 0, XN_FLAG_ONELINE);
311 printf("\n");
312 }
313 printf("%serror %d at %d depth lookup:%s\n",
314 X509_STORE_CTX_get0_parent_ctx(ctx) ? "[CRL path]" : "",
315 cert_error,
316 X509_STORE_CTX_get_error_depth(ctx),
317 X509_verify_cert_error_string(cert_error));
318 switch(cert_error)
319 {
320 case X509_V_ERR_NO_EXPLICIT_POLICY:
321 policies_print(NULL, ctx);
322 case X509_V_ERR_CERT_HAS_EXPIRED:
323
324 /* since we are just checking the certificates, it is
325 * ok if they are self signed. But we should still warn
326 * the user.
327 */
328
329 case X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT:
330 /* Continue after extension errors too */
331 case X509_V_ERR_INVALID_CA:
332 case X509_V_ERR_INVALID_NON_CA:
333 case X509_V_ERR_PATH_LENGTH_EXCEEDED:
334 case X509_V_ERR_INVALID_PURPOSE:
335 case X509_V_ERR_CRL_HAS_EXPIRED:
336 case X509_V_ERR_CRL_NOT_YET_VALID:
337 case X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION:
338 ok = 1;
339
340 }
341
342 return ok;
343
344 }
345 if (cert_error == X509_V_OK && ok == 2)
346 policies_print(NULL, ctx);
347 if (!v_verbose)
348 ERR_clear_error();
349 return(ok);
350 }
351