6eb9f4886123ee0a692fad8d3790feef7c60b39c
[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         {
113         ASN1_OBJECT *a;
114         int i;
115         unsigned long ret=0;
116         unsigned char *p;
117
118         a=ca->obj;
119         switch (ca->type)
120                 {
121         case ADDED_DATA:
122                 ret=a->length<<20L;
123                 p=(unsigned char *)a->data;
124                 for (i=0; i<a->length; i++)
125                         ret^=p[i]<<((i*3)%24);
126                 break;
127         case ADDED_SNAME:
128                 ret=lh_strhash(a->sn);
129                 break;
130         case ADDED_LNAME:
131                 ret=lh_strhash(a->ln);
132                 break;
133         case ADDED_NID:
134                 ret=a->nid;
135                 break;
136         default:
137                 /* abort(); */
138                 return 0;
139                 }
140         ret&=0x3fffffffL;
141         ret|=ca->type<<30L;
142         return(ret);
143         }
144
145 static int add_cmp(ADDED_OBJ *ca, ADDED_OBJ *cb)
146         {
147         ASN1_OBJECT *a,*b;
148         int i;
149
150         i=ca->type-cb->type;
151         if (i) return(i);
152         a=ca->obj;
153         b=cb->obj;
154         switch (ca->type)
155                 {
156         case ADDED_DATA:
157                 i=(a->length - b->length);
158                 if (i) return(i);
159                 return(memcmp(a->data,b->data,a->length));
160         case ADDED_SNAME:
161                 if (a->sn == NULL) return(-1);
162                 else if (b->sn == NULL) return(1);
163                 else return(strcmp(a->sn,b->sn));
164         case ADDED_LNAME:
165                 if (a->ln == NULL) return(-1);
166                 else if (b->ln == NULL) return(1);
167                 else return(strcmp(a->ln,b->ln));
168         case ADDED_NID:
169                 return(a->nid-b->nid);
170         default:
171                 /* abort(); */
172                 return 0;
173                 }
174         return(1); /* should not get here */
175         }
176
177 static IMPLEMENT_LHASH_HASH_FN(add_hash, ADDED_OBJ *)
178 static IMPLEMENT_LHASH_COMP_FN(add_cmp, ADDED_OBJ *)
179
180 static int init_added(void)
181         {
182         if (added != NULL) return(1);
183         added=lh_new(LHASH_HASH_FN(add_hash),LHASH_COMP_FN(add_cmp));
184         return(added != NULL);
185         }
186
187 static void cleanup1(ADDED_OBJ *a)
188         {
189         a->obj->nid=0;
190         a->obj->flags|=ASN1_OBJECT_FLAG_DYNAMIC|
191                         ASN1_OBJECT_FLAG_DYNAMIC_STRINGS|
192                         ASN1_OBJECT_FLAG_DYNAMIC_DATA;
193         }
194
195 static void cleanup2(ADDED_OBJ *a)
196         { a->obj->nid++; }
197
198 static void cleanup3(ADDED_OBJ *a)
199         {
200         if (--a->obj->nid == 0)
201                 ASN1_OBJECT_free(a->obj);
202         OPENSSL_free(a);
203         }
204
205 void OBJ_cleanup(void)
206         {
207         if (added == NULL) return;
208         added->down_load=0;
209         lh_doall(added,(LHASH_DOALL_FN_TYPE)cleanup1); /* zero counters */
210         lh_doall(added,(LHASH_DOALL_FN_TYPE)cleanup2); /* set counters */
211         lh_doall(added,(LHASH_DOALL_FN_TYPE)cleanup3); /* free objects */
212         lh_free(added);
213         added=NULL;
214         }
215
216 int OBJ_new_nid(int num)
217         {
218         int i;
219
220         i=new_nid;
221         new_nid+=num;
222         return(i);
223         }
224
225 int OBJ_add_object(ASN1_OBJECT *obj)
226         {
227         ASN1_OBJECT *o;
228         ADDED_OBJ *ao[4]={NULL,NULL,NULL,NULL},*aop;
229         int i;
230
231         if (added == NULL)
232                 if (!init_added()) return(0);
233         if ((o=OBJ_dup(obj)) == NULL) goto err;
234         ao[ADDED_NID]=(ADDED_OBJ *)OPENSSL_malloc(sizeof(ADDED_OBJ));
235         if ((o->length != 0) && (obj->data != NULL))
236                 ao[ADDED_DATA]=(ADDED_OBJ *)OPENSSL_malloc(sizeof(ADDED_OBJ));
237         if (o->sn != NULL)
238                 ao[ADDED_SNAME]=(ADDED_OBJ *)OPENSSL_malloc(sizeof(ADDED_OBJ));
239         if (o->ln != NULL)
240                 ao[ADDED_LNAME]=(ADDED_OBJ *)OPENSSL_malloc(sizeof(ADDED_OBJ));
241
242         for (i=ADDED_DATA; i<=ADDED_NID; i++)
243                 {
244                 if (ao[i] != NULL)
245                         {
246                         ao[i]->type=i;
247                         ao[i]->obj=o;
248                         aop=(ADDED_OBJ *)lh_insert(added,ao[i]);
249                         /* memory leak, buit should not normally matter */
250                         if (aop != NULL)
251                                 OPENSSL_free(aop);
252                         }
253                 }
254         o->flags&= ~(ASN1_OBJECT_FLAG_DYNAMIC|ASN1_OBJECT_FLAG_DYNAMIC_STRINGS|
255                         ASN1_OBJECT_FLAG_DYNAMIC_DATA);
256
257         return(o->nid);
258 err:
259         for (i=ADDED_DATA; i<=ADDED_NID; i++)
260                 if (ao[i] != NULL) OPENSSL_free(ao[i]);
261         if (o != NULL) OPENSSL_free(o);
262         return(NID_undef);
263         }
264
265 ASN1_OBJECT *OBJ_nid2obj(int n)
266         {
267         ADDED_OBJ ad,*adp;
268         ASN1_OBJECT ob;
269
270         if ((n >= 0) && (n < NUM_NID))
271                 {
272                 if ((n != NID_undef) && (nid_objs[n].nid == NID_undef))
273                         {
274                         OBJerr(OBJ_F_OBJ_NID2OBJ,OBJ_R_UNKNOWN_NID);
275                         return(NULL);
276                         }
277                 return((ASN1_OBJECT *)&(nid_objs[n]));
278                 }
279         else if (added == NULL)
280                 return(NULL);
281         else
282                 {
283                 ad.type=ADDED_NID;
284                 ad.obj= &ob;
285                 ob.nid=n;
286                 adp=(ADDED_OBJ *)lh_retrieve(added,&ad);
287                 if (adp != NULL)
288                         return(adp->obj);
289                 else
290                         {
291                         OBJerr(OBJ_F_OBJ_NID2OBJ,OBJ_R_UNKNOWN_NID);
292                         return(NULL);
293                         }
294                 }
295         }
296
297 const char *OBJ_nid2sn(int n)
298         {
299         ADDED_OBJ ad,*adp;
300         ASN1_OBJECT ob;
301
302         if ((n >= 0) && (n < NUM_NID))
303                 {
304                 if ((n != NID_undef) && (nid_objs[n].nid == NID_undef))
305                         {
306                         OBJerr(OBJ_F_OBJ_NID2SN,OBJ_R_UNKNOWN_NID);
307                         return(NULL);
308                         }
309                 return(nid_objs[n].sn);
310                 }
311         else if (added == NULL)
312                 return(NULL);
313         else
314                 {
315                 ad.type=ADDED_NID;
316                 ad.obj= &ob;
317                 ob.nid=n;
318                 adp=(ADDED_OBJ *)lh_retrieve(added,&ad);
319                 if (adp != NULL)
320                         return(adp->obj->sn);
321                 else
322                         {
323                         OBJerr(OBJ_F_OBJ_NID2SN,OBJ_R_UNKNOWN_NID);
324                         return(NULL);
325                         }
326                 }
327         }
328
329 const char *OBJ_nid2ln(int n)
330         {
331         ADDED_OBJ ad,*adp;
332         ASN1_OBJECT ob;
333
334         if ((n >= 0) && (n < NUM_NID))
335                 {
336                 if ((n != NID_undef) && (nid_objs[n].nid == NID_undef))
337                         {
338                         OBJerr(OBJ_F_OBJ_NID2LN,OBJ_R_UNKNOWN_NID);
339                         return(NULL);
340                         }
341                 return(nid_objs[n].ln);
342                 }
343         else if (added == NULL)
344                 return(NULL);
345         else
346                 {
347                 ad.type=ADDED_NID;
348                 ad.obj= &ob;
349                 ob.nid=n;
350                 adp=(ADDED_OBJ *)lh_retrieve(added,&ad);
351                 if (adp != NULL)
352                         return(adp->obj->ln);
353                 else
354                         {
355                         OBJerr(OBJ_F_OBJ_NID2LN,OBJ_R_UNKNOWN_NID);
356                         return(NULL);
357                         }
358                 }
359         }
360
361 int OBJ_obj2nid(ASN1_OBJECT *a)
362         {
363         ASN1_OBJECT **op;
364         ADDED_OBJ ad,*adp;
365
366         if (a == NULL)
367                 return(NID_undef);
368         if (a->nid != 0)
369                 return(a->nid);
370
371         if (added != NULL)
372                 {
373                 ad.type=ADDED_DATA;
374                 ad.obj=a;
375                 adp=(ADDED_OBJ *)lh_retrieve(added,&ad);
376                 if (adp != NULL) return (adp->obj->nid);
377                 }
378         op=(ASN1_OBJECT **)OBJ_bsearch((char *)&a,(char *)obj_objs,NUM_OBJ,
379                 sizeof(ASN1_OBJECT *),obj_cmp);
380         if (op == NULL)
381                 return(NID_undef);
382         return((*op)->nid);
383         }
384
385 /* Convert an object name into an ASN1_OBJECT
386  * if "noname" is not set then search for short and long names first.
387  * This will convert the "dotted" form into an object: unlike OBJ_txt2nid
388  * it can be used with any objects, not just registered ones.
389  */
390
391 ASN1_OBJECT *OBJ_txt2obj(const char *s, int no_name)
392         {
393         int nid = NID_undef;
394         ASN1_OBJECT *op=NULL;
395         unsigned char *buf,*p;
396         int i, j;
397
398         if(!no_name) {
399                 if( ((nid = OBJ_sn2nid(s)) != NID_undef) ||
400                         ((nid = OBJ_ln2nid(s)) != NID_undef) ) 
401                                         return OBJ_nid2obj(nid);
402         }
403
404         /* Work out size of content octets */
405         i=a2d_ASN1_OBJECT(NULL,0,s,-1);
406         if (i <= 0) {
407                 /* Clear the error */
408                 ERR_get_error();
409                 return NULL;
410         }
411         /* Work out total size */
412         j = ASN1_object_size(0,i,V_ASN1_OBJECT);
413
414         if((buf=(unsigned char *)OPENSSL_malloc(j)) == NULL) return NULL;
415
416         p = buf;
417         /* Write out tag+length */
418         ASN1_put_object(&p,0,i,V_ASN1_OBJECT,V_ASN1_UNIVERSAL);
419         /* Write out contents */
420         a2d_ASN1_OBJECT(p,i,s,-1);
421         
422         p=buf;
423         op=d2i_ASN1_OBJECT(NULL,&p,i);
424         OPENSSL_free(buf);
425         return op;
426         }
427
428 int OBJ_obj2txt(char *buf, int buf_len, ASN1_OBJECT *a, int no_name)
429 {
430         int i,idx=0,n=0,len,nid;
431         unsigned long l;
432         unsigned char *p;
433         const char *s;
434         char tbuf[32];
435
436         if (buf_len <= 0) return(0);
437
438         if ((a == NULL) || (a->data == NULL)) {
439                 buf[0]='\0';
440                 return(0);
441         }
442
443         nid=OBJ_obj2nid(a);
444         if ((nid == NID_undef) || no_name) {
445                 len=a->length;
446                 p=a->data;
447
448                 idx=0;
449                 l=0;
450                 while (idx < a->length) {
451                         l|=(p[idx]&0x7f);
452                         if (!(p[idx] & 0x80)) break;
453                         l<<=7L;
454                         idx++;
455                 }
456                 idx++;
457                 i=(int)(l/40);
458                 if (i > 2) i=2;
459                 l-=(long)(i*40);
460
461                 sprintf(tbuf,"%d.%lu",i,l);
462                 i=strlen(tbuf);
463                 strncpy(buf,tbuf,buf_len);
464                 buf_len-=i;
465                 buf+=i;
466                 n+=i;
467
468                 l=0;
469                 for (; idx<len; idx++) {
470                         l|=p[idx]&0x7f;
471                         if (!(p[idx] & 0x80)) {
472                                 sprintf(tbuf,".%lu",l);
473                                 i=strlen(tbuf);
474                                 if (buf_len > 0)
475                                         strncpy(buf,tbuf,buf_len);
476                                 buf_len-=i;
477                                 buf+=i;
478                                 n+=i;
479                                 l=0;
480                         }
481                         l<<=7L;
482                 }
483         } else {
484                 s=OBJ_nid2ln(nid);
485                 if (s == NULL)
486                         s=OBJ_nid2sn(nid);
487                 strncpy(buf,s,buf_len);
488                 n=strlen(s);
489         }
490         buf[buf_len-1]='\0';
491         return(n);
492 }
493
494 int OBJ_txt2nid(char *s)
495 {
496         ASN1_OBJECT *obj;
497         int nid;
498         obj = OBJ_txt2obj(s, 0);
499         nid = OBJ_obj2nid(obj);
500         ASN1_OBJECT_free(obj);
501         return nid;
502 }
503
504 int OBJ_ln2nid(const char *s)
505         {
506         ASN1_OBJECT o,*oo= &o,**op;
507         ADDED_OBJ ad,*adp;
508
509         o.ln=s;
510         if (added != NULL)
511                 {
512                 ad.type=ADDED_LNAME;
513                 ad.obj= &o;
514                 adp=(ADDED_OBJ *)lh_retrieve(added,&ad);
515                 if (adp != NULL) return (adp->obj->nid);
516                 }
517         op=(ASN1_OBJECT **)OBJ_bsearch((char *)&oo,(char *)ln_objs,NUM_LN,
518                 sizeof(ASN1_OBJECT *),ln_cmp);
519         if (op == NULL) return(NID_undef);
520         return((*op)->nid);
521         }
522
523 int OBJ_sn2nid(const char *s)
524         {
525         ASN1_OBJECT o,*oo= &o,**op;
526         ADDED_OBJ ad,*adp;
527
528         o.sn=s;
529         if (added != NULL)
530                 {
531                 ad.type=ADDED_SNAME;
532                 ad.obj= &o;
533                 adp=(ADDED_OBJ *)lh_retrieve(added,&ad);
534                 if (adp != NULL) return (adp->obj->nid);
535                 }
536         op=(ASN1_OBJECT **)OBJ_bsearch((char *)&oo,(char *)sn_objs,NUM_SN,
537                 sizeof(ASN1_OBJECT *),sn_cmp);
538         if (op == NULL) return(NID_undef);
539         return((*op)->nid);
540         }
541
542 static int obj_cmp(const void *ap, const void *bp)
543         {
544         int j;
545         ASN1_OBJECT *a= *(ASN1_OBJECT **)ap;
546         ASN1_OBJECT *b= *(ASN1_OBJECT **)bp;
547
548         j=(a->length - b->length);
549         if (j) return(j);
550         return(memcmp(a->data,b->data,a->length));
551         }
552
553 char *OBJ_bsearch(char *key, char *base, int num, int size, int (*cmp)(const void *, const void *))
554         {
555         int l,h,i,c;
556         char *p;
557
558         if (num == 0) return(NULL);
559         l=0;
560         h=num;
561         while (l < h)
562                 {
563                 i=(l+h)/2;
564                 p= &(base[i*size]);
565                 c=(*cmp)(key,p);
566                 if (c < 0)
567                         h=i;
568                 else if (c > 0)
569                         l=i+1;
570                 else
571                         return(p);
572                 }
573 #ifdef CHARSET_EBCDIC
574 /* THIS IS A KLUDGE - Because the *_obj is sorted in ASCII order, and
575  * I don't have perl (yet), we revert to a *LINEAR* search
576  * when the object wasn't found in the binary search.
577  */
578         for (i=0; i<num; ++i) {
579                 p= &(base[i*size]);
580                 if ((*cmp)(key,p) == 0)
581                         return p;
582         }
583 #endif
584         return(NULL);
585         }
586
587 int OBJ_create_objects(BIO *in)
588         {
589         MS_STATIC char buf[512];
590         int i,num=0;
591         char *o,*s,*l=NULL;
592
593         for (;;)
594                 {
595                 s=o=NULL;
596                 i=BIO_gets(in,buf,512);
597                 if (i <= 0) return(num);
598                 buf[i-1]='\0';
599                 if (!isalnum((unsigned char)buf[0])) return(num);
600                 o=s=buf;
601                 while (isdigit((unsigned char)*s) || (*s == '.'))
602                         s++;
603                 if (*s != '\0')
604                         {
605                         *(s++)='\0';
606                         while (isspace((unsigned char)*s))
607                                 s++;
608                         if (*s == '\0')
609                                 s=NULL;
610                         else
611                                 {
612                                 l=s;
613                                 while ((*l != '\0') && !isspace((unsigned char)*l))
614                                         l++;
615                                 if (*l != '\0')
616                                         {
617                                         *(l++)='\0';
618                                         while (isspace((unsigned char)*l))
619                                                 l++;
620                                         if (*l == '\0') l=NULL;
621                                         }
622                                 else
623                                         l=NULL;
624                                 }
625                         }
626                 else
627                         s=NULL;
628                 if ((o == NULL) || (*o == '\0')) return(num);
629                 if (!OBJ_create(o,s,l)) return(num);
630                 num++;
631                 }
632         /* return(num); */
633         }
634
635 int OBJ_create(char *oid, char *sn, char *ln)
636         {
637         int ok=0;
638         ASN1_OBJECT *op=NULL;
639         unsigned char *buf;
640         int i;
641
642         i=a2d_ASN1_OBJECT(NULL,0,oid,-1);
643         if (i <= 0) return(0);
644
645         if ((buf=(unsigned char *)OPENSSL_malloc(i)) == NULL)
646                 {
647                 OBJerr(OBJ_F_OBJ_CREATE,OBJ_R_MALLOC_FAILURE);
648                 return(0);
649                 }
650         i=a2d_ASN1_OBJECT(buf,i,oid,-1);
651         op=(ASN1_OBJECT *)ASN1_OBJECT_create(OBJ_new_nid(1),buf,i,sn,ln);
652         if (op == NULL) 
653                 goto err;
654         ok=OBJ_add_object(op);
655 err:
656         ASN1_OBJECT_free(op);
657         OPENSSL_free(buf);
658         return(ok);
659         }
660