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