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