6eeb530802c23b77bb9a9483cd8ff4260e6c8742
[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(ASN1_OBJECT **a, ASN1_OBJECT **b);
83 static int ln_cmp(ASN1_OBJECT **a, ASN1_OBJECT **b);
84 static int obj_cmp(ASN1_OBJECT **a, ASN1_OBJECT **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(ASN1_OBJECT **ap, ASN1_OBJECT **bp)
100         { return(strcmp((*ap)->sn,(*bp)->sn)); }
101
102 static int ln_cmp(ASN1_OBJECT **ap, ASN1_OBJECT **bp)
103         { return(strcmp((*ap)->ln,(*bp)->ln)); }
104
105 static unsigned long add_hash(ADDED_OBJ *ca)
106         {
107         ASN1_OBJECT *a;
108         int i;
109         unsigned long ret=0;
110         unsigned char *p;
111
112         a=ca->obj;
113         switch (ca->type)
114                 {
115         case ADDED_DATA:
116                 ret=a->length<<20L;
117                 p=(unsigned char *)a->data;
118                 for (i=0; i<a->length; i++)
119                         ret^=p[i]<<((i*3)%24);
120                 break;
121         case ADDED_SNAME:
122                 ret=lh_strhash(a->sn);
123                 break;
124         case ADDED_LNAME:
125                 ret=lh_strhash(a->ln);
126                 break;
127         case ADDED_NID:
128                 ret=a->nid;
129                 break;
130         default:
131                 abort();
132                 }
133         ret&=0x3fffffffL;
134         ret|=ca->type<<30L;
135         return(ret);
136         }
137
138 static int add_cmp(ADDED_OBJ *ca, ADDED_OBJ *cb)
139         {
140         ASN1_OBJECT *a,*b;
141         int i;
142
143         i=ca->type-cb->type;
144         if (i) return(i);
145         a=ca->obj;
146         b=cb->obj;
147         switch (ca->type)
148                 {
149         case ADDED_DATA:
150                 i=(a->length - b->length);
151                 if (i) return(i);
152                 return(memcmp(a->data,b->data,a->length));
153         case ADDED_SNAME:
154                 if (a->sn == NULL) return(-1);
155                 else if (b->sn == NULL) return(1);
156                 else return(strcmp(a->sn,b->sn));
157         case ADDED_LNAME:
158                 if (a->ln == NULL) return(-1);
159                 else if (b->ln == NULL) return(1);
160                 else return(strcmp(a->ln,b->ln));
161         case ADDED_NID:
162                 return(a->nid-b->nid);
163         default:
164                 abort();
165                 }
166         return(1); /* should not get here */
167         }
168
169 static int init_added(void)
170         {
171         if (added != NULL) return(1);
172         added=lh_new(add_hash,add_cmp);
173         return(added != NULL);
174         }
175
176 static void cleanup1(ADDED_OBJ *a)
177         {
178         a->obj->nid=0;
179         a->obj->flags|=ASN1_OBJECT_FLAG_DYNAMIC|
180                         ASN1_OBJECT_FLAG_DYNAMIC_STRINGS|
181                         ASN1_OBJECT_FLAG_DYNAMIC_DATA;
182         }
183
184 static void cleanup2(ADDED_OBJ *a)
185         { a->obj->nid++; }
186
187 static void cleanup3(ADDED_OBJ *a)
188         {
189         if (--a->obj->nid == 0)
190                 ASN1_OBJECT_free(a->obj);
191         Free(a);
192         }
193
194 void OBJ_cleanup(void)
195         {
196         if (added == NULL) return;
197         added->down_load=0;
198         lh_doall(added,cleanup1); /* zero counters */
199         lh_doall(added,cleanup2); /* set counters */
200         lh_doall(added,cleanup3); /* free objects */
201         lh_free(added);
202         added=NULL;
203         }
204
205 int OBJ_new_nid(int num)
206         {
207         int i;
208
209         i=new_nid;
210         new_nid+=num;
211         return(i);
212         }
213
214 int OBJ_add_object(ASN1_OBJECT *obj)
215         {
216         ASN1_OBJECT *o;
217         ADDED_OBJ *ao[4]={NULL,NULL,NULL,NULL},*aop;
218         int i;
219
220         if (added == NULL)
221                 if (!init_added()) return(0);
222         if ((o=OBJ_dup(obj)) == NULL) goto err;
223         ao[ADDED_NID]=(ADDED_OBJ *)Malloc(sizeof(ADDED_OBJ));
224         if ((o->length != 0) && (obj->data != NULL))
225                 ao[ADDED_DATA]=(ADDED_OBJ *)Malloc(sizeof(ADDED_OBJ));
226         if (o->sn != NULL)
227                 ao[ADDED_SNAME]=(ADDED_OBJ *)Malloc(sizeof(ADDED_OBJ));
228         if (o->ln != NULL)
229                 ao[ADDED_LNAME]=(ADDED_OBJ *)Malloc(sizeof(ADDED_OBJ));
230
231         for (i=ADDED_DATA; i<=ADDED_NID; i++)
232                 {
233                 if (ao[i] != NULL)
234                         {
235                         ao[i]->type=i;
236                         ao[i]->obj=o;
237                         aop=(ADDED_OBJ *)lh_insert(added,ao[i]);
238                         /* memory leak, buit should not normally matter */
239                         if (aop != NULL)
240                                 Free(aop);
241                         }
242                 }
243         o->flags&= ~(ASN1_OBJECT_FLAG_DYNAMIC|ASN1_OBJECT_FLAG_DYNAMIC_STRINGS|
244                         ASN1_OBJECT_FLAG_DYNAMIC_DATA);
245
246         return(o->nid);
247 err:
248         for (i=ADDED_DATA; i<=ADDED_NID; i++)
249                 if (ao[i] != NULL) Free(ao[i]);
250         if (o != NULL) Free(o);
251         return(NID_undef);
252         }
253
254 ASN1_OBJECT *OBJ_nid2obj(int n)
255         {
256         ADDED_OBJ ad,*adp;
257         ASN1_OBJECT ob;
258
259         if ((n >= 0) && (n < NUM_NID))
260                 {
261                 if ((n != NID_undef) && (nid_objs[n].nid == NID_undef))
262                         {
263                         OBJerr(OBJ_F_OBJ_NID2OBJ,OBJ_R_UNKNOWN_NID);
264                         return(NULL);
265                         }
266                 return((ASN1_OBJECT *)&(nid_objs[n]));
267                 }
268         else if (added == NULL)
269                 return(NULL);
270         else
271                 {
272                 ad.type=ADDED_NID;
273                 ad.obj= &ob;
274                 ob.nid=n;
275                 adp=(ADDED_OBJ *)lh_retrieve(added,&ad);
276                 if (adp != NULL)
277                         return(adp->obj);
278                 else
279                         {
280                         OBJerr(OBJ_F_OBJ_NID2OBJ,OBJ_R_UNKNOWN_NID);
281                         return(NULL);
282                         }
283                 }
284         }
285
286 const char *OBJ_nid2sn(int n)
287         {
288         ADDED_OBJ ad,*adp;
289         ASN1_OBJECT ob;
290
291         if ((n >= 0) && (n < NUM_NID))
292                 {
293                 if ((n != NID_undef) && (nid_objs[n].nid == NID_undef))
294                         {
295                         OBJerr(OBJ_F_OBJ_NID2SN,OBJ_R_UNKNOWN_NID);
296                         return(NULL);
297                         }
298                 return(nid_objs[n].sn);
299                 }
300         else if (added == NULL)
301                 return(NULL);
302         else
303                 {
304                 ad.type=ADDED_NID;
305                 ad.obj= &ob;
306                 ob.nid=n;
307                 adp=(ADDED_OBJ *)lh_retrieve(added,&ad);
308                 if (adp != NULL)
309                         return(adp->obj->sn);
310                 else
311                         {
312                         OBJerr(OBJ_F_OBJ_NID2SN,OBJ_R_UNKNOWN_NID);
313                         return(NULL);
314                         }
315                 }
316         }
317
318 const char *OBJ_nid2ln(int n)
319         {
320         ADDED_OBJ ad,*adp;
321         ASN1_OBJECT ob;
322
323         if ((n >= 0) && (n < NUM_NID))
324                 {
325                 if ((n != NID_undef) && (nid_objs[n].nid == NID_undef))
326                         {
327                         OBJerr(OBJ_F_OBJ_NID2LN,OBJ_R_UNKNOWN_NID);
328                         return(NULL);
329                         }
330                 return(nid_objs[n].ln);
331                 }
332         else if (added == NULL)
333                 return(NULL);
334         else
335                 {
336                 ad.type=ADDED_NID;
337                 ad.obj= &ob;
338                 ob.nid=n;
339                 adp=(ADDED_OBJ *)lh_retrieve(added,&ad);
340                 if (adp != NULL)
341                         return(adp->obj->ln);
342                 else
343                         {
344                         OBJerr(OBJ_F_OBJ_NID2LN,OBJ_R_UNKNOWN_NID);
345                         return(NULL);
346                         }
347                 }
348         }
349
350 int OBJ_obj2nid(ASN1_OBJECT *a)
351         {
352         ASN1_OBJECT **op;
353         ADDED_OBJ ad,*adp;
354
355         if (a == NULL)
356                 return(NID_undef);
357         if (a->nid != 0)
358                 return(a->nid);
359
360         if (added != NULL)
361                 {
362                 ad.type=ADDED_DATA;
363                 ad.obj=a;
364                 adp=(ADDED_OBJ *)lh_retrieve(added,&ad);
365                 if (adp != NULL) return (adp->obj->nid);
366                 }
367         op=(ASN1_OBJECT **)OBJ_bsearch((char *)&a,(char *)obj_objs,NUM_OBJ,
368                 sizeof(ASN1_OBJECT *),(int (*)())obj_cmp);
369         if (op == NULL)
370                 return(NID_undef);
371         return((*op)->nid);
372         }
373
374 /* Convert an object name into an ASN1_OBJECT
375  * if "noname" is not set then search for short and long names first.
376  * This will convert the "dotted" form into an object: unlike OBJ_txt2nid
377  * it can be used with any objects, not just registered ones.
378  */
379
380 ASN1_OBJECT *OBJ_txt2obj(const char *s, int no_name)
381         {
382         int nid = NID_undef;
383         ASN1_OBJECT *op=NULL;
384         unsigned char *buf,*p;
385         int i, j;
386
387         if(!no_name) {
388                 if( ((nid = OBJ_sn2nid(s)) != NID_undef) ||
389                         ((nid = OBJ_ln2nid(s)) != NID_undef) ) 
390                                         return OBJ_nid2obj(nid);
391         }
392
393         /* Work out size of content octets */
394         i=a2d_ASN1_OBJECT(NULL,0,s,-1);
395         if (i <= 0) {
396                 /* Clear the error */
397                 ERR_get_error();
398                 return NULL;
399         }
400         /* Work out total size */
401         j = ASN1_object_size(0,i,V_ASN1_OBJECT);
402
403         if((buf=(unsigned char *)Malloc(j)) == NULL) return NULL;
404
405         p = buf;
406         /* Write out tag+length */
407         ASN1_put_object(&p,0,i,V_ASN1_OBJECT,V_ASN1_UNIVERSAL);
408         /* Write out contents */
409         a2d_ASN1_OBJECT(p,i,s,-1);
410         
411         p=buf;
412         op=d2i_ASN1_OBJECT(NULL,&p,i);
413         Free(buf);
414         return op;
415         }
416
417 int OBJ_obj2txt(char *buf, int buf_len, ASN1_OBJECT *a, int no_name)
418 {
419         int i,idx=0,n=0,len,nid;
420         unsigned long l;
421         unsigned char *p;
422         const char *s;
423         char tbuf[32];
424
425         if (buf_len <= 0) return(0);
426
427         if ((a == NULL) || (a->data == NULL)) {
428                 buf[0]='\0';
429                 return(0);
430         }
431
432         nid=OBJ_obj2nid(a);
433         if ((nid == NID_undef) || no_name) {
434                 len=a->length;
435                 p=a->data;
436
437                 idx=0;
438                 l=0;
439                 while (idx < a->length) {
440                         l|=(p[idx]&0x7f);
441                         if (!(p[idx] & 0x80)) break;
442                         l<<=7L;
443                         idx++;
444                 }
445                 idx++;
446                 i=(int)(l/40);
447                 if (i > 2) i=2;
448                 l-=(long)(i*40);
449
450                 sprintf(tbuf,"%d.%lu",i,l);
451                 i=strlen(tbuf);
452                 strncpy(buf,tbuf,buf_len);
453                 buf_len-=i;
454                 buf+=i;
455                 n+=i;
456
457                 l=0;
458                 for (; idx<len; idx++) {
459                         l|=p[idx]&0x7f;
460                         if (!(p[idx] & 0x80)) {
461                                 sprintf(tbuf,".%lu",l);
462                                 i=strlen(tbuf);
463                                 if (buf_len > 0)
464                                         strncpy(buf,tbuf,buf_len);
465                                 buf_len-=i;
466                                 buf+=i;
467                                 n+=i;
468                                 l=0;
469                         }
470                         l<<=7L;
471                 }
472         } else {
473                 s=OBJ_nid2ln(nid);
474                 if (s == NULL)
475                         s=OBJ_nid2sn(nid);
476                 strncpy(buf,s,buf_len);
477                 n=strlen(s);
478         }
479         buf[buf_len-1]='\0';
480         return(n);
481 }
482
483 int OBJ_txt2nid(char *s)
484 {
485         ASN1_OBJECT *obj;
486         int nid;
487         obj = OBJ_txt2obj(s, 0);
488         nid = OBJ_obj2nid(obj);
489         ASN1_OBJECT_free(obj);
490         return nid;
491 }
492
493 int OBJ_ln2nid(const char *s)
494         {
495         ASN1_OBJECT o,*oo= &o,**op;
496         ADDED_OBJ ad,*adp;
497
498         o.ln=s;
499         if (added != NULL)
500                 {
501                 ad.type=ADDED_LNAME;
502                 ad.obj= &o;
503                 adp=(ADDED_OBJ *)lh_retrieve(added,&ad);
504                 if (adp != NULL) return (adp->obj->nid);
505                 }
506         op=(ASN1_OBJECT **)OBJ_bsearch((char *)&oo,(char *)ln_objs,NUM_LN,
507                 sizeof(ASN1_OBJECT *),(int (*)())ln_cmp);
508         if (op == NULL) return(NID_undef);
509         return((*op)->nid);
510         }
511
512 int OBJ_sn2nid(const char *s)
513         {
514         ASN1_OBJECT o,*oo= &o,**op;
515         ADDED_OBJ ad,*adp;
516
517         o.sn=s;
518         if (added != NULL)
519                 {
520                 ad.type=ADDED_SNAME;
521                 ad.obj= &o;
522                 adp=(ADDED_OBJ *)lh_retrieve(added,&ad);
523                 if (adp != NULL) return (adp->obj->nid);
524                 }
525         op=(ASN1_OBJECT **)OBJ_bsearch((char *)&oo,(char *)sn_objs,NUM_SN,
526                 sizeof(ASN1_OBJECT *),(int (*)())sn_cmp);
527         if (op == NULL) return(NID_undef);
528         return((*op)->nid);
529         }
530
531 static int obj_cmp(ASN1_OBJECT **ap, ASN1_OBJECT **bp)
532         {
533         int j;
534         ASN1_OBJECT *a= *ap;
535         ASN1_OBJECT *b= *bp;
536
537         j=(a->length - b->length);
538         if (j) return(j);
539         return(memcmp(a->data,b->data,a->length));
540         }
541
542 char *OBJ_bsearch(char *key, char *base, int num, int size, int (*cmp)())
543         {
544         int l,h,i,c;
545         char *p;
546
547         if (num == 0) return(NULL);
548         l=0;
549         h=num;
550         while (l < h)
551                 {
552                 i=(l+h)/2;
553                 p= &(base[i*size]);
554                 c=(*cmp)(key,p);
555                 if (c < 0)
556                         h=i;
557                 else if (c > 0)
558                         l=i+1;
559                 else
560                         return(p);
561                 }
562 #ifdef CHARSET_EBCDIC
563 /* THIS IS A KLUDGE - Because the *_obj is sorted in ASCII order, and
564  * I don't have perl (yet), we revert to a *LINEAR* search
565  * when the object wasn't found in the binary search.
566  */
567         for (i=0; i<num; ++i) {
568                 p= &(base[i*size]);
569                 if ((*cmp)(key,p) == 0)
570                         return p;
571         }
572 #endif
573         return(NULL);
574         }
575
576 int OBJ_create_objects(BIO *in)
577         {
578         MS_STATIC char buf[512];
579         int i,num=0;
580         char *o,*s,*l=NULL;
581
582         for (;;)
583                 {
584                 s=o=NULL;
585                 i=BIO_gets(in,buf,512);
586                 if (i <= 0) return(num);
587                 buf[i-1]='\0';
588                 if (!isalnum((unsigned char)buf[0])) return(num);
589                 o=s=buf;
590                 while (isdigit((unsigned char)*s) || (*s == '.'))
591                         s++;
592                 if (*s != '\0')
593                         {
594                         *(s++)='\0';
595                         while (isspace((unsigned char)*s))
596                                 s++;
597                         if (*s == '\0')
598                                 s=NULL;
599                         else
600                                 {
601                                 l=s;
602                                 while ((*l != '\0') && !isspace((unsigned char)*l))
603                                         l++;
604                                 if (*l != '\0')
605                                         {
606                                         *(l++)='\0';
607                                         while (isspace((unsigned char)*l))
608                                                 l++;
609                                         if (*l == '\0') l=NULL;
610                                         }
611                                 else
612                                         l=NULL;
613                                 }
614                         }
615                 else
616                         s=NULL;
617                 if ((o == NULL) || (*o == '\0')) return(num);
618                 if (!OBJ_create(o,s,l)) return(num);
619                 num++;
620                 }
621         /* return(num); */
622         }
623
624 int OBJ_create(char *oid, char *sn, char *ln)
625         {
626         int ok=0;
627         ASN1_OBJECT *op=NULL;
628         unsigned char *buf;
629         int i;
630
631         i=a2d_ASN1_OBJECT(NULL,0,oid,-1);
632         if (i <= 0) return(0);
633
634         if ((buf=(unsigned char *)Malloc(i)) == NULL)
635                 {
636                 OBJerr(OBJ_F_OBJ_CREATE,OBJ_R_MALLOC_FAILURE);
637                 return(0);
638                 }
639         i=a2d_ASN1_OBJECT(buf,i,oid,-1);
640         op=(ASN1_OBJECT *)ASN1_OBJECT_create(OBJ_new_nid(1),buf,i,sn,ln);
641         if (op == NULL) 
642                 goto err;
643         ok=OBJ_add_object(op);
644 err:
645         ASN1_OBJECT_free(op);
646         Free((char *)buf);
647         return(ok);
648         }
649