Add support for the noCheck OCSP extension. This is
[openssl.git] / crypto / objects / obj_dat.c
1 /* crypto/objects/obj_dat.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 <ctype.h>
61 #include "cryptlib.h"
62 #include <openssl/lhash.h>
63 #include <openssl/asn1.h>
64 #include <openssl/objects.h>
65
66 /* obj_dat.h is generated from objects.h by obj_dat.pl */
67 #ifndef NO_OBJECT
68 #include "obj_dat.h"
69 #else
70 /* You will have to load all the objects needed manually in the application */
71 #define NUM_NID 0
72 #define NUM_SN 0
73 #define NUM_LN 0
74 #define NUM_OBJ 0
75 static unsigned char lvalues[1];
76 static ASN1_OBJECT nid_objs[1];
77 static ASN1_OBJECT *sn_objs[1];
78 static ASN1_OBJECT *ln_objs[1];
79 static ASN1_OBJECT *obj_objs[1];
80 #endif
81
82 static int sn_cmp(const void *a, const void *b);
83 static int ln_cmp(const void *a, const void *b);
84 static int obj_cmp(const void *a, const void *b);
85 #define ADDED_DATA      0
86 #define ADDED_SNAME     1
87 #define ADDED_LNAME     2
88 #define ADDED_NID       3
89
90 typedef struct added_obj_st
91         {
92         int type;
93         ASN1_OBJECT *obj;
94         } ADDED_OBJ;
95
96 static int new_nid=NUM_NID;
97 static LHASH *added=NULL;
98
99 static int sn_cmp(const void *a, const void *b)
100         {
101         const ASN1_OBJECT * const *ap = a, * const *bp = b;
102         return(strcmp((*ap)->sn,(*bp)->sn));
103         }
104
105 static int ln_cmp(const void *a, const void *b)
106         { 
107         const ASN1_OBJECT * const *ap = a, * const *bp = b;
108         return(strcmp((*ap)->ln,(*bp)->ln));
109         }
110
111 /* static unsigned long add_hash(ADDED_OBJ *ca) */
112 static unsigned long add_hash(const void *ca_void)
113         {
114         const ASN1_OBJECT *a;
115         int i;
116         unsigned long ret=0;
117         unsigned char *p;
118         ADDED_OBJ *ca = (ADDED_OBJ *)ca_void;
119
120         a=ca->obj;
121         switch (ca->type)
122                 {
123         case ADDED_DATA:
124                 ret=a->length<<20L;
125                 p=(unsigned char *)a->data;
126                 for (i=0; i<a->length; i++)
127                         ret^=p[i]<<((i*3)%24);
128                 break;
129         case ADDED_SNAME:
130                 ret=lh_strhash(a->sn);
131                 break;
132         case ADDED_LNAME:
133                 ret=lh_strhash(a->ln);
134                 break;
135         case ADDED_NID:
136                 ret=a->nid;
137                 break;
138         default:
139                 /* abort(); */
140                 return 0;
141                 }
142         ret&=0x3fffffffL;
143         ret|=ca->type<<30L;
144         return(ret);
145         }
146
147 /* static int add_cmp(ADDED_OBJ *ca, ADDED_OBJ *cb) */
148 static int add_cmp(const void *ca_void, const void *cb_void)
149         {
150         ASN1_OBJECT *a,*b;
151         int i;
152         ADDED_OBJ *ca = (ADDED_OBJ *)ca_void;
153         ADDED_OBJ *cb = (ADDED_OBJ *)cb_void;
154
155         i=ca->type-cb->type;
156         if (i) return(i);
157         a=ca->obj;
158         b=cb->obj;
159         switch (ca->type)
160                 {
161         case ADDED_DATA:
162                 i=(a->length - b->length);
163                 if (i) return(i);
164                 return(memcmp(a->data,b->data,a->length));
165         case ADDED_SNAME:
166                 if (a->sn == NULL) return(-1);
167                 else if (b->sn == NULL) return(1);
168                 else return(strcmp(a->sn,b->sn));
169         case ADDED_LNAME:
170                 if (a->ln == NULL) return(-1);
171                 else if (b->ln == NULL) return(1);
172                 else return(strcmp(a->ln,b->ln));
173         case ADDED_NID:
174                 return(a->nid-b->nid);
175         default:
176                 /* abort(); */
177                 return 0;
178                 }
179         return(1); /* should not get here */
180         }
181
182 static int init_added(void)
183         {
184         if (added != NULL) return(1);
185         added=lh_new(add_hash,add_cmp);
186         return(added != NULL);
187         }
188
189 static void cleanup1(ADDED_OBJ *a)
190         {
191         a->obj->nid=0;
192         a->obj->flags|=ASN1_OBJECT_FLAG_DYNAMIC|
193                         ASN1_OBJECT_FLAG_DYNAMIC_STRINGS|
194                         ASN1_OBJECT_FLAG_DYNAMIC_DATA;
195         }
196
197 static void cleanup2(ADDED_OBJ *a)
198         { a->obj->nid++; }
199
200 static void cleanup3(ADDED_OBJ *a)
201         {
202         if (--a->obj->nid == 0)
203                 ASN1_OBJECT_free(a->obj);
204         OPENSSL_free(a);
205         }
206
207 void OBJ_cleanup(void)
208         {
209         if (added == NULL) return;
210         added->down_load=0;
211         lh_doall(added,(LHASH_DOALL_FN_TYPE)cleanup1); /* zero counters */
212         lh_doall(added,(LHASH_DOALL_FN_TYPE)cleanup2); /* set counters */
213         lh_doall(added,(LHASH_DOALL_FN_TYPE)cleanup3); /* free objects */
214         lh_free(added);
215         added=NULL;
216         }
217
218 int OBJ_new_nid(int num)
219         {
220         int i;
221
222         i=new_nid;
223         new_nid+=num;
224         return(i);
225         }
226
227 int OBJ_add_object(const ASN1_OBJECT *obj)
228         {
229         ASN1_OBJECT *o;
230         ADDED_OBJ *ao[4]={NULL,NULL,NULL,NULL},*aop;
231         int i;
232
233         if (added == NULL)
234                 if (!init_added()) return(0);
235         if ((o=OBJ_dup(obj)) == NULL) goto err;
236         ao[ADDED_NID]=(ADDED_OBJ *)OPENSSL_malloc(sizeof(ADDED_OBJ));
237         if ((o->length != 0) && (obj->data != NULL))
238                 ao[ADDED_DATA]=(ADDED_OBJ *)OPENSSL_malloc(sizeof(ADDED_OBJ));
239         if (o->sn != NULL)
240                 ao[ADDED_SNAME]=(ADDED_OBJ *)OPENSSL_malloc(sizeof(ADDED_OBJ));
241         if (o->ln != NULL)
242                 ao[ADDED_LNAME]=(ADDED_OBJ *)OPENSSL_malloc(sizeof(ADDED_OBJ));
243
244         for (i=ADDED_DATA; i<=ADDED_NID; i++)
245                 {
246                 if (ao[i] != NULL)
247                         {
248                         ao[i]->type=i;
249                         ao[i]->obj=o;
250                         aop=(ADDED_OBJ *)lh_insert(added,ao[i]);
251                         /* memory leak, buit should not normally matter */
252                         if (aop != NULL)
253                                 OPENSSL_free(aop);
254                         }
255                 }
256         o->flags&= ~(ASN1_OBJECT_FLAG_DYNAMIC|ASN1_OBJECT_FLAG_DYNAMIC_STRINGS|
257                         ASN1_OBJECT_FLAG_DYNAMIC_DATA);
258
259         return(o->nid);
260 err:
261         for (i=ADDED_DATA; i<=ADDED_NID; i++)
262                 if (ao[i] != NULL) OPENSSL_free(ao[i]);
263         if (o != NULL) OPENSSL_free(o);
264         return(NID_undef);
265         }
266
267 ASN1_OBJECT *OBJ_nid2obj(int n)
268         {
269         ADDED_OBJ ad,*adp;
270         ASN1_OBJECT ob;
271
272         if ((n >= 0) && (n < NUM_NID))
273                 {
274                 if ((n != NID_undef) && (nid_objs[n].nid == NID_undef))
275                         {
276                         OBJerr(OBJ_F_OBJ_NID2OBJ,OBJ_R_UNKNOWN_NID);
277                         return(NULL);
278                         }
279                 return((ASN1_OBJECT *)&(nid_objs[n]));
280                 }
281         else if (added == NULL)
282                 return(NULL);
283         else
284                 {
285                 ad.type=ADDED_NID;
286                 ad.obj= &ob;
287                 ob.nid=n;
288                 adp=(ADDED_OBJ *)lh_retrieve(added,&ad);
289                 if (adp != NULL)
290                         return(adp->obj);
291                 else
292                         {
293                         OBJerr(OBJ_F_OBJ_NID2OBJ,OBJ_R_UNKNOWN_NID);
294                         return(NULL);
295                         }
296                 }
297         }
298
299 const char *OBJ_nid2sn(int n)
300         {
301         ADDED_OBJ ad,*adp;
302         ASN1_OBJECT ob;
303
304         if ((n >= 0) && (n < NUM_NID))
305                 {
306                 if ((n != NID_undef) && (nid_objs[n].nid == NID_undef))
307                         {
308                         OBJerr(OBJ_F_OBJ_NID2SN,OBJ_R_UNKNOWN_NID);
309                         return(NULL);
310                         }
311                 return(nid_objs[n].sn);
312                 }
313         else if (added == NULL)
314                 return(NULL);
315         else
316                 {
317                 ad.type=ADDED_NID;
318                 ad.obj= &ob;
319                 ob.nid=n;
320                 adp=(ADDED_OBJ *)lh_retrieve(added,&ad);
321                 if (adp != NULL)
322                         return(adp->obj->sn);
323                 else
324                         {
325                         OBJerr(OBJ_F_OBJ_NID2SN,OBJ_R_UNKNOWN_NID);
326                         return(NULL);
327                         }
328                 }
329         }
330
331 const char *OBJ_nid2ln(int n)
332         {
333         ADDED_OBJ ad,*adp;
334         ASN1_OBJECT ob;
335
336         if ((n >= 0) && (n < NUM_NID))
337                 {
338                 if ((n != NID_undef) && (nid_objs[n].nid == NID_undef))
339                         {
340                         OBJerr(OBJ_F_OBJ_NID2LN,OBJ_R_UNKNOWN_NID);
341                         return(NULL);
342                         }
343                 return(nid_objs[n].ln);
344                 }
345         else if (added == NULL)
346                 return(NULL);
347         else
348                 {
349                 ad.type=ADDED_NID;
350                 ad.obj= &ob;
351                 ob.nid=n;
352                 adp=(ADDED_OBJ *)lh_retrieve(added,&ad);
353                 if (adp != NULL)
354                         return(adp->obj->ln);
355                 else
356                         {
357                         OBJerr(OBJ_F_OBJ_NID2LN,OBJ_R_UNKNOWN_NID);
358                         return(NULL);
359                         }
360                 }
361         }
362
363 int OBJ_obj2nid(const ASN1_OBJECT *a)
364         {
365         ASN1_OBJECT **op;
366         ADDED_OBJ ad,*adp;
367
368         if (a == NULL)
369                 return(NID_undef);
370         if (a->nid != 0)
371                 return(a->nid);
372
373         if (added != NULL)
374                 {
375                 ad.type=ADDED_DATA;
376                 ad.obj=(ASN1_OBJECT *)a; /* XXX: ugly but harmless */
377                 adp=(ADDED_OBJ *)lh_retrieve(added,&ad);
378                 if (adp != NULL) return (adp->obj->nid);
379                 }
380         op=(ASN1_OBJECT **)OBJ_bsearch((char *)&a,(char *)obj_objs,NUM_OBJ,
381                 sizeof(ASN1_OBJECT *),obj_cmp);
382         if (op == NULL)
383                 return(NID_undef);
384         return((*op)->nid);
385         }
386
387 /* Convert an object name into an ASN1_OBJECT
388  * if "noname" is not set then search for short and long names first.
389  * This will convert the "dotted" form into an object: unlike OBJ_txt2nid
390  * it can be used with any objects, not just registered ones.
391  */
392
393 ASN1_OBJECT *OBJ_txt2obj(const char *s, int no_name)
394         {
395         int nid = NID_undef;
396         ASN1_OBJECT *op=NULL;
397         unsigned char *buf,*p;
398         int i, j;
399
400         if(!no_name) {
401                 if( ((nid = OBJ_sn2nid(s)) != NID_undef) ||
402                         ((nid = OBJ_ln2nid(s)) != NID_undef) ) 
403                                         return OBJ_nid2obj(nid);
404         }
405
406         /* Work out size of content octets */
407         i=a2d_ASN1_OBJECT(NULL,0,s,-1);
408         if (i <= 0) {
409                 /* Clear the error */
410                 ERR_get_error();
411                 return NULL;
412         }
413         /* Work out total size */
414         j = ASN1_object_size(0,i,V_ASN1_OBJECT);
415
416         if((buf=(unsigned char *)OPENSSL_malloc(j)) == NULL) return NULL;
417
418         p = buf;
419         /* Write out tag+length */
420         ASN1_put_object(&p,0,i,V_ASN1_OBJECT,V_ASN1_UNIVERSAL);
421         /* Write out contents */
422         a2d_ASN1_OBJECT(p,i,s,-1);
423         
424         p=buf;
425         op=d2i_ASN1_OBJECT(NULL,&p,i);
426         OPENSSL_free(buf);
427         return op;
428         }
429
430 int OBJ_obj2txt(char *buf, int buf_len, const ASN1_OBJECT *a, int no_name)
431 {
432         int i,idx=0,n=0,len,nid;
433         unsigned long l;
434         unsigned char *p;
435         const char *s;
436         char tbuf[32];
437
438         if (buf_len <= 0) return(0);
439
440         if ((a == NULL) || (a->data == NULL)) {
441                 buf[0]='\0';
442                 return(0);
443         }
444
445         nid=OBJ_obj2nid(a);
446         if ((nid == NID_undef) || no_name) {
447                 len=a->length;
448                 p=a->data;
449
450                 idx=0;
451                 l=0;
452                 while (idx < a->length) {
453                         l|=(p[idx]&0x7f);
454                         if (!(p[idx] & 0x80)) break;
455                         l<<=7L;
456                         idx++;
457                 }
458                 idx++;
459                 i=(int)(l/40);
460                 if (i > 2) i=2;
461                 l-=(long)(i*40);
462
463                 sprintf(tbuf,"%d.%lu",i,l);
464                 i=strlen(tbuf);
465                 strncpy(buf,tbuf,buf_len);
466                 buf_len-=i;
467                 buf+=i;
468                 n+=i;
469
470                 l=0;
471                 for (; idx<len; idx++) {
472                         l|=p[idx]&0x7f;
473                         if (!(p[idx] & 0x80)) {
474                                 sprintf(tbuf,".%lu",l);
475                                 i=strlen(tbuf);
476                                 if (buf_len > 0)
477                                         strncpy(buf,tbuf,buf_len);
478                                 buf_len-=i;
479                                 buf+=i;
480                                 n+=i;
481                                 l=0;
482                         }
483                         l<<=7L;
484                 }
485         } else {
486                 s=OBJ_nid2ln(nid);
487                 if (s == NULL)
488                         s=OBJ_nid2sn(nid);
489                 strncpy(buf,s,buf_len);
490                 n=strlen(s);
491         }
492         buf[buf_len-1]='\0';
493         return(n);
494 }
495
496 int OBJ_txt2nid(const char *s)
497 {
498         ASN1_OBJECT *obj;
499         int nid;
500         obj = OBJ_txt2obj(s, 0);
501         nid = OBJ_obj2nid(obj);
502         ASN1_OBJECT_free(obj);
503         return nid;
504 }
505
506 int OBJ_ln2nid(const char *s)
507         {
508         ASN1_OBJECT o,*oo= &o,**op;
509         ADDED_OBJ ad,*adp;
510
511         o.ln=s;
512         if (added != NULL)
513                 {
514                 ad.type=ADDED_LNAME;
515                 ad.obj= &o;
516                 adp=(ADDED_OBJ *)lh_retrieve(added,&ad);
517                 if (adp != NULL) return (adp->obj->nid);
518                 }
519         op=(ASN1_OBJECT **)OBJ_bsearch((char *)&oo,(char *)ln_objs,NUM_LN,
520                 sizeof(ASN1_OBJECT *),ln_cmp);
521         if (op == NULL) return(NID_undef);
522         return((*op)->nid);
523         }
524
525 int OBJ_sn2nid(const char *s)
526         {
527         ASN1_OBJECT o,*oo= &o,**op;
528         ADDED_OBJ ad,*adp;
529
530         o.sn=s;
531         if (added != NULL)
532                 {
533                 ad.type=ADDED_SNAME;
534                 ad.obj= &o;
535                 adp=(ADDED_OBJ *)lh_retrieve(added,&ad);
536                 if (adp != NULL) return (adp->obj->nid);
537                 }
538         op=(ASN1_OBJECT **)OBJ_bsearch((char *)&oo,(char *)sn_objs,NUM_SN,
539                 sizeof(ASN1_OBJECT *),sn_cmp);
540         if (op == NULL) return(NID_undef);
541         return((*op)->nid);
542         }
543
544 static int obj_cmp(const void *ap, const void *bp)
545         {
546         int j;
547         ASN1_OBJECT *a= *(ASN1_OBJECT **)ap;
548         ASN1_OBJECT *b= *(ASN1_OBJECT **)bp;
549
550         j=(a->length - b->length);
551         if (j) return(j);
552         return(memcmp(a->data,b->data,a->length));
553         }
554
555 const char *OBJ_bsearch(const char *key, const char *base, int num, int size,
556         int (*cmp)(const void *, const void *))
557         {
558         int l,h,i,c;
559         const char *p;
560
561         if (num == 0) return(NULL);
562         l=0;
563         h=num;
564         while (l < h)
565                 {
566                 i=(l+h)/2;
567                 p= &(base[i*size]);
568                 c=(*cmp)(key,p);
569                 if (c < 0)
570                         h=i;
571                 else if (c > 0)
572                         l=i+1;
573                 else
574                         return(p);
575                 }
576 #ifdef CHARSET_EBCDIC
577 /* THIS IS A KLUDGE - Because the *_obj is sorted in ASCII order, and
578  * I don't have perl (yet), we revert to a *LINEAR* search
579  * when the object wasn't found in the binary search.
580  */
581         for (i=0; i<num; ++i) {
582                 p= &(base[i*size]);
583                 if ((*cmp)(key,p) == 0)
584                         return p;
585         }
586 #endif
587         return(NULL);
588         }
589
590 int OBJ_create_objects(BIO *in)
591         {
592         MS_STATIC char buf[512];
593         int i,num=0;
594         char *o,*s,*l=NULL;
595
596         for (;;)
597                 {
598                 s=o=NULL;
599                 i=BIO_gets(in,buf,512);
600                 if (i <= 0) return(num);
601                 buf[i-1]='\0';
602                 if (!isalnum((unsigned char)buf[0])) return(num);
603                 o=s=buf;
604                 while (isdigit((unsigned char)*s) || (*s == '.'))
605                         s++;
606                 if (*s != '\0')
607                         {
608                         *(s++)='\0';
609                         while (isspace((unsigned char)*s))
610                                 s++;
611                         if (*s == '\0')
612                                 s=NULL;
613                         else
614                                 {
615                                 l=s;
616                                 while ((*l != '\0') && !isspace((unsigned char)*l))
617                                         l++;
618                                 if (*l != '\0')
619                                         {
620                                         *(l++)='\0';
621                                         while (isspace((unsigned char)*l))
622                                                 l++;
623                                         if (*l == '\0') l=NULL;
624                                         }
625                                 else
626                                         l=NULL;
627                                 }
628                         }
629                 else
630                         s=NULL;
631                 if ((o == NULL) || (*o == '\0')) return(num);
632                 if (!OBJ_create(o,s,l)) return(num);
633                 num++;
634                 }
635         /* return(num); */
636         }
637
638 int OBJ_create(const char *oid, const char *sn, const char *ln)
639         {
640         int ok=0;
641         ASN1_OBJECT *op=NULL;
642         unsigned char *buf;
643         int i;
644
645         i=a2d_ASN1_OBJECT(NULL,0,oid,-1);
646         if (i <= 0) return(0);
647
648         if ((buf=(unsigned char *)OPENSSL_malloc(i)) == NULL)
649                 {
650                 OBJerr(OBJ_F_OBJ_CREATE,OBJ_R_MALLOC_FAILURE);
651                 return(0);
652                 }
653         i=a2d_ASN1_OBJECT(buf,i,oid,-1);
654         op=(ASN1_OBJECT *)ASN1_OBJECT_create(OBJ_new_nid(1),buf,i,sn,ln);
655         if (op == NULL) 
656                 goto err;
657         ok=OBJ_add_object(op);
658 err:
659         ASN1_OBJECT_free(op);
660         OPENSSL_free(buf);
661         return(ok);
662         }
663