Tolerate a SEQUENCE in DN components.
[openssl.git] / crypto / asn1 / t_x509.c
1 /* crypto/asn1/t_x509.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 "cryptlib.h"
61 #include <openssl/buffer.h>
62 #include <openssl/bn.h>
63 #ifndef OPENSSL_NO_RSA
64 #include <openssl/rsa.h>
65 #endif
66 #ifndef OPENSSL_NO_DSA
67 #include <openssl/dsa.h>
68 #endif
69 #ifndef OPENSSL_NO_EC
70 #include <openssl/ec.h>
71 #endif
72 #include <openssl/objects.h>
73 #include <openssl/x509.h>
74 #include <openssl/x509v3.h>
75
76 #ifndef OPENSSL_NO_FP_API
77 int X509_print_fp(FILE *fp, X509 *x)
78         {
79         return X509_print_ex_fp(fp, x, XN_FLAG_COMPAT, X509_FLAG_COMPAT);
80         }
81
82 int X509_print_ex_fp(FILE *fp, X509 *x, unsigned long nmflag, unsigned long cflag)
83         {
84         BIO *b;
85         int ret;
86
87         if ((b=BIO_new(BIO_s_file())) == NULL)
88                 {
89                 X509err(X509_F_X509_PRINT_EX_FP,ERR_R_BUF_LIB);
90                 return(0);
91                 }
92         BIO_set_fp(b,fp,BIO_NOCLOSE);
93         ret=X509_print_ex(b, x, nmflag, cflag);
94         BIO_free(b);
95         return(ret);
96         }
97 #endif
98
99 int X509_print(BIO *bp, X509 *x)
100 {
101         return X509_print_ex(bp, x, XN_FLAG_COMPAT, X509_FLAG_COMPAT);
102 }
103
104 int X509_print_ex(BIO *bp, X509 *x, unsigned long nmflags, unsigned long cflag)
105         {
106         long l;
107         int ret=0,i;
108         char *m=NULL,mlch = ' ';
109         int nmindent = 0;
110         X509_CINF *ci;
111         ASN1_INTEGER *bs;
112         EVP_PKEY *pkey=NULL;
113         const char *neg;
114         ASN1_STRING *str=NULL;
115
116         if((nmflags & XN_FLAG_SEP_MASK) == XN_FLAG_SEP_MULTILINE) {
117                         mlch = '\n';
118                         nmindent = 12;
119         }
120
121         if(nmflags == X509_FLAG_COMPAT)
122                 nmindent = 16;
123
124         ci=x->cert_info;
125         if(!(cflag & X509_FLAG_NO_HEADER))
126                 {
127                 if (BIO_write(bp,"Certificate:\n",13) <= 0) goto err;
128                 if (BIO_write(bp,"    Data:\n",10) <= 0) goto err;
129                 }
130         if(!(cflag & X509_FLAG_NO_VERSION))
131                 {
132                 l=X509_get_version(x);
133                 if (BIO_printf(bp,"%8sVersion: %lu (0x%lx)\n","",l+1,l) <= 0) goto err;
134                 }
135         if(!(cflag & X509_FLAG_NO_SERIAL))
136                 {
137
138                 if (BIO_write(bp,"        Serial Number:",22) <= 0) goto err;
139
140                 bs=X509_get_serialNumber(x);
141                 if (bs->length <= 4)
142                         {
143                         l=ASN1_INTEGER_get(bs);
144                         if (l < 0)
145                                 {
146                                 l= -l;
147                                 neg="-";
148                                 }
149                         else
150                                 neg="";
151                         if (BIO_printf(bp," %s%lu (%s0x%lx)\n",neg,l,neg,l) <= 0)
152                                 goto err;
153                         }
154                 else
155                         {
156                         neg=(bs->type == V_ASN1_NEG_INTEGER)?" (Negative)":"";
157                         if (BIO_printf(bp,"\n%12s%s","",neg) <= 0) goto err;
158
159                         for (i=0; i<bs->length; i++)
160                                 {
161                                 if (BIO_printf(bp,"%02x%c",bs->data[i],
162                                         ((i+1 == bs->length)?'\n':':')) <= 0)
163                                         goto err;
164                                 }
165                         }
166
167                 }
168
169         if(!(cflag & X509_FLAG_NO_SIGNAME))
170                 {
171                 if (BIO_printf(bp,"%8sSignature Algorithm: ","") <= 0) 
172                         goto err;
173                 if (i2a_ASN1_OBJECT(bp, ci->signature->algorithm) <= 0)
174                         goto err;
175                 if (BIO_puts(bp, "\n") <= 0)
176                         goto err;
177                 }
178
179         if(!(cflag & X509_FLAG_NO_ISSUER))
180                 {
181                 if (BIO_printf(bp,"        Issuer:%c",mlch) <= 0) goto err;
182                 if (X509_NAME_print_ex(bp,X509_get_issuer_name(x),nmindent, nmflags) < 0) goto err;
183                 if (BIO_write(bp,"\n",1) <= 0) goto err;
184                 }
185         if(!(cflag & X509_FLAG_NO_VALIDITY))
186                 {
187                 if (BIO_write(bp,"        Validity\n",17) <= 0) goto err;
188                 if (BIO_write(bp,"            Not Before: ",24) <= 0) goto err;
189                 if (!ASN1_TIME_print(bp,X509_get_notBefore(x))) goto err;
190                 if (BIO_write(bp,"\n            Not After : ",25) <= 0) goto err;
191                 if (!ASN1_TIME_print(bp,X509_get_notAfter(x))) goto err;
192                 if (BIO_write(bp,"\n",1) <= 0) goto err;
193                 }
194         if(!(cflag & X509_FLAG_NO_SUBJECT))
195                 {
196                 if (BIO_printf(bp,"        Subject:%c",mlch) <= 0) goto err;
197                 if (X509_NAME_print_ex(bp,X509_get_subject_name(x),nmindent, nmflags) < 0) goto err;
198                 if (BIO_write(bp,"\n",1) <= 0) goto err;
199                 }
200         if(!(cflag & X509_FLAG_NO_PUBKEY))
201                 {
202                 if (BIO_write(bp,"        Subject Public Key Info:\n",33) <= 0)
203                         goto err;
204                 if (BIO_printf(bp,"%12sPublic Key Algorithm: ","") <= 0)
205                         goto err;
206                 if (i2a_ASN1_OBJECT(bp, ci->key->algor->algorithm) <= 0)
207                         goto err;
208                 if (BIO_puts(bp, "\n") <= 0)
209                         goto err;
210
211                 pkey=X509_get_pubkey(x);
212                 if (pkey == NULL)
213                         {
214                         BIO_printf(bp,"%12sUnable to load Public Key\n","");
215                         ERR_print_errors(bp);
216                         }
217                 else
218 #ifndef OPENSSL_NO_RSA
219                 if (pkey->type == EVP_PKEY_RSA)
220                         {
221                         BIO_printf(bp,"%12sRSA Public Key: (%d bit)\n","",
222                         BN_num_bits(pkey->pkey.rsa->n));
223                         RSA_print(bp,pkey->pkey.rsa,16);
224                         }
225                 else
226 #endif
227 #ifndef OPENSSL_NO_DSA
228                 if (pkey->type == EVP_PKEY_DSA)
229                         {
230                         BIO_printf(bp,"%12sDSA Public Key:\n","");
231                         DSA_print(bp,pkey->pkey.dsa,16);
232                         }
233                 else
234 #endif
235 #ifndef OPENSSL_NO_EC
236                 if (pkey->type == EVP_PKEY_EC)
237                         {
238                         BIO_printf(bp, "%12sEC Public Key:\n","");
239                         EC_KEY_print(bp, pkey->pkey.ec, 16);
240                         }
241                 else
242 #endif
243                         BIO_printf(bp,"%12sUnknown Public Key:\n","");
244
245                 EVP_PKEY_free(pkey);
246                 }
247
248         if (!(cflag & X509_FLAG_NO_EXTENSIONS))
249                 X509V3_extensions_print(bp, "X509v3 extensions",
250                                         ci->extensions, cflag, 8);
251
252         if(!(cflag & X509_FLAG_NO_SIGDUMP))
253                 {
254                 if(X509_signature_print(bp, x->sig_alg, x->signature) <= 0) goto err;
255                 }
256         if(!(cflag & X509_FLAG_NO_AUX))
257                 {
258                 if (!X509_CERT_AUX_print(bp, x->aux, 0)) goto err;
259                 }
260         ret=1;
261 err:
262         if (str != NULL) ASN1_STRING_free(str);
263         if (m != NULL) OPENSSL_free(m);
264         return(ret);
265         }
266
267 int X509_ocspid_print (BIO *bp, X509 *x)
268         {
269         unsigned char *der=NULL ;
270         unsigned char *dertmp;
271         int derlen;
272         int i;
273         unsigned char SHA1md[SHA_DIGEST_LENGTH];
274
275         /* display the hash of the subject as it would appear
276            in OCSP requests */
277         if (BIO_printf(bp,"        Subject OCSP hash: ") <= 0)
278                 goto err;
279         derlen = i2d_X509_NAME(x->cert_info->subject, NULL);
280         if ((der = dertmp = (unsigned char *)OPENSSL_malloc (derlen)) == NULL)
281                 goto err;
282         i2d_X509_NAME(x->cert_info->subject, &dertmp);
283
284         EVP_Digest(der, derlen, SHA1md, NULL, EVP_sha1(), NULL);
285         for (i=0; i < SHA_DIGEST_LENGTH; i++)
286                 {
287                 if (BIO_printf(bp,"%02X",SHA1md[i]) <= 0) goto err;
288                 }
289         OPENSSL_free (der);
290         der=NULL;
291
292         /* display the hash of the public key as it would appear
293            in OCSP requests */
294         if (BIO_printf(bp,"\n        Public key OCSP hash: ") <= 0)
295                 goto err;
296
297         EVP_Digest(x->cert_info->key->public_key->data,
298                 x->cert_info->key->public_key->length, SHA1md, NULL, EVP_sha1(), NULL);
299         for (i=0; i < SHA_DIGEST_LENGTH; i++)
300                 {
301                 if (BIO_printf(bp,"%02X",SHA1md[i]) <= 0)
302                         goto err;
303                 }
304         BIO_printf(bp,"\n");
305
306         return (1);
307 err:
308         if (der != NULL) OPENSSL_free(der);
309         return(0);
310         }
311
312 int X509_signature_print(BIO *bp, X509_ALGOR *sigalg, ASN1_STRING *sig)
313 {
314         unsigned char *s;
315         int i, n;
316         if (BIO_puts(bp,"    Signature Algorithm: ") <= 0) return 0;
317         if (i2a_ASN1_OBJECT(bp, sigalg->algorithm) <= 0) return 0;
318
319         n=sig->length;
320         s=sig->data;
321         for (i=0; i<n; i++)
322                 {
323                 if ((i%18) == 0)
324                         if (BIO_write(bp,"\n        ",9) <= 0) return 0;
325                         if (BIO_printf(bp,"%02x%s",s[i],
326                                 ((i+1) == n)?"":":") <= 0) return 0;
327                 }
328         if (BIO_write(bp,"\n",1) != 1) return 0;
329         return 1;
330 }
331
332 int ASN1_STRING_print(BIO *bp, ASN1_STRING *v)
333         {
334         int i,n;
335         char buf[80],*p;;
336
337         if (v == NULL) return(0);
338         n=0;
339         p=(char *)v->data;
340         for (i=0; i<v->length; i++)
341                 {
342                 if ((p[i] > '~') || ((p[i] < ' ') &&
343                         (p[i] != '\n') && (p[i] != '\r')))
344                         buf[n]='.';
345                 else
346                         buf[n]=p[i];
347                 n++;
348                 if (n >= 80)
349                         {
350                         if (BIO_write(bp,buf,n) <= 0)
351                                 return(0);
352                         n=0;
353                         }
354                 }
355         if (n > 0)
356                 if (BIO_write(bp,buf,n) <= 0)
357                         return(0);
358         return(1);
359         }
360
361 int ASN1_TIME_print(BIO *bp, ASN1_TIME *tm)
362 {
363         if(tm->type == V_ASN1_UTCTIME) return ASN1_UTCTIME_print(bp, tm);
364         if(tm->type == V_ASN1_GENERALIZEDTIME)
365                                 return ASN1_GENERALIZEDTIME_print(bp, tm);
366         BIO_write(bp,"Bad time value",14);
367         return(0);
368 }
369
370 static const char *mon[12]=
371     {
372     "Jan","Feb","Mar","Apr","May","Jun",
373     "Jul","Aug","Sep","Oct","Nov","Dec"
374     };
375
376 int ASN1_GENERALIZEDTIME_print(BIO *bp, ASN1_GENERALIZEDTIME *tm)
377         {
378         char *v;
379         int gmt=0;
380         int i;
381         int y=0,M=0,d=0,h=0,m=0,s=0;
382         char *f = NULL;
383         int f_len = 0;
384
385         i=tm->length;
386         v=(char *)tm->data;
387
388         if (i < 12) goto err;
389         if (v[i-1] == 'Z') gmt=1;
390         for (i=0; i<12; i++)
391                 if ((v[i] > '9') || (v[i] < '0')) goto err;
392         y= (v[0]-'0')*1000+(v[1]-'0')*100 + (v[2]-'0')*10+(v[3]-'0');
393         M= (v[4]-'0')*10+(v[5]-'0');
394         if ((M > 12) || (M < 1)) goto err;
395         d= (v[6]-'0')*10+(v[7]-'0');
396         h= (v[8]-'0')*10+(v[9]-'0');
397         m=  (v[10]-'0')*10+(v[11]-'0');
398         if (    (v[12] >= '0') && (v[12] <= '9') &&
399                 (v[13] >= '0') && (v[13] <= '9'))
400                 {
401                 s=  (v[12]-'0')*10+(v[13]-'0');
402                 /* Check for fractions of seconds. */
403                 if (v[14] == '.')
404                         {
405                         int l = tm->length;
406                         f = &v[14];     /* The decimal point. */
407                         f_len = 1;
408                         while (14 + f_len < l && f[f_len] >= '0' && f[f_len] <= '9')
409                                 ++f_len;
410                         }
411                 }
412
413         if (BIO_printf(bp,"%s %2d %02d:%02d:%02d%.*s %d%s",
414                 mon[M-1],d,h,m,s,f_len,f,y,(gmt)?" GMT":"") <= 0)
415                 return(0);
416         else
417                 return(1);
418 err:
419         BIO_write(bp,"Bad time value",14);
420         return(0);
421         }
422
423 int ASN1_UTCTIME_print(BIO *bp, ASN1_UTCTIME *tm)
424         {
425         char *v;
426         int gmt=0;
427         int i;
428         int y=0,M=0,d=0,h=0,m=0,s=0;
429
430         i=tm->length;
431         v=(char *)tm->data;
432
433         if (i < 10) goto err;
434         if (v[i-1] == 'Z') gmt=1;
435         for (i=0; i<10; i++)
436                 if ((v[i] > '9') || (v[i] < '0')) goto err;
437         y= (v[0]-'0')*10+(v[1]-'0');
438         if (y < 50) y+=100;
439         M= (v[2]-'0')*10+(v[3]-'0');
440         if ((M > 12) || (M < 1)) goto err;
441         d= (v[4]-'0')*10+(v[5]-'0');
442         h= (v[6]-'0')*10+(v[7]-'0');
443         m=  (v[8]-'0')*10+(v[9]-'0');
444         if (    (v[10] >= '0') && (v[10] <= '9') &&
445                 (v[11] >= '0') && (v[11] <= '9'))
446                 s=  (v[10]-'0')*10+(v[11]-'0');
447
448         if (BIO_printf(bp,"%s %2d %02d:%02d:%02d %d%s",
449                 mon[M-1],d,h,m,s,y+1900,(gmt)?" GMT":"") <= 0)
450                 return(0);
451         else
452                 return(1);
453 err:
454         BIO_write(bp,"Bad time value",14);
455         return(0);
456         }
457
458 int X509_NAME_print(BIO *bp, X509_NAME *name, int obase)
459         {
460         char *s,*c,*b;
461         int ret=0,l,ll,i,first=1;
462
463         ll=80-2-obase;
464
465         b=s=X509_NAME_oneline(name,NULL,0);
466         if (!*s)
467                 {
468                 OPENSSL_free(b);
469                 return 1;
470                 }
471         s++; /* skip the first slash */
472
473         l=ll;
474         c=s;
475         for (;;)
476                 {
477 #ifndef CHARSET_EBCDIC
478                 if (    ((*s == '/') &&
479                                 ((s[1] >= 'A') && (s[1] <= 'Z') && (
480                                         (s[2] == '=') ||
481                                         ((s[2] >= 'A') && (s[2] <= 'Z') &&
482                                         (s[3] == '='))
483                                  ))) ||
484                         (*s == '\0'))
485 #else
486                 if (    ((*s == '/') &&
487                                 (isupper(s[1]) && (
488                                         (s[2] == '=') ||
489                                         (isupper(s[2]) &&
490                                         (s[3] == '='))
491                                  ))) ||
492                         (*s == '\0'))
493 #endif
494                         {
495                         if ((l <= 0) && !first)
496                                 {
497                                 first=0;
498                                 if (BIO_write(bp,"\n",1) != 1) goto err;
499                                 for (i=0; i<obase; i++)
500                                         {
501                                         if (BIO_write(bp," ",1) != 1) goto err;
502                                         }
503                                 l=ll;
504                                 }
505                         i=s-c;
506                         if (BIO_write(bp,c,i) != i) goto err;
507                         c+=i;
508                         c++;
509                         if (*s != '\0')
510                                 {
511                                 if (BIO_write(bp,", ",2) != 2) goto err;
512                                 }
513                         l--;
514                         }
515                 if (*s == '\0') break;
516                 s++;
517                 l--;
518                 }
519         
520         ret=1;
521         if (0)
522                 {
523 err:
524                 X509err(X509_F_X509_NAME_PRINT,ERR_R_BUF_LIB);
525                 }
526         OPENSSL_free(b);
527         return(ret);
528         }
529