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(ASN1_OBJECT **ap, ASN1_OBJECT **bp)
 107         { return(strcmp((*ap)->sn,(*bp)->sn)); }
 108
 109 static int ln_cmp(ASN1_OBJECT **ap, ASN1_OBJECT **bp)
 110         { return(strcmp((*ap)->ln,(*bp)->ln)); }
 111
 112 static unsigned long add_hash(ADDED_OBJ *ca)
 113         {
 114         ASN1_OBJECT *a;
 115         int i;
 116         unsigned long ret=0;
 117         unsigned char *p;
 118
 119         a=ca->obj;
 120         switch (ca->type)
 121                 {
 122         case ADDED_DATA:
 123                 ret=a->length<<20L;
 124                 p=(unsigned char *)a->data;
 125                 for (i=0; i<a->length; i++)
 126                         ret^=p[i]<<((i*3)%24);
 127                 break;
 128         case ADDED_SNAME:
 129                 ret=lh_strhash(a->sn);
 130                 break;
 131         case ADDED_LNAME:
 132                 ret=lh_strhash(a->ln);
 133                 break;
 134         case ADDED_NID:
 135                 ret=a->nid;
 136                 break;
 137         default:
 138                 abort();
 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                 }
 173         return(1); /* should not get here */
 174         }
 175
 176 static int init_added(void)
 177         {
 178         if (added != NULL) return(1);
 179         added=lh_new(add_hash,add_cmp);
 180         return(added != NULL);
 181         }
 182
 183 static void cleanup1(ADDED_OBJ *a)
 184         {
 185         a->obj->nid=0;
 186         a->obj->flags|=ASN1_OBJECT_FLAG_DYNAMIC|
 187                         ASN1_OBJECT_FLAG_DYNAMIC_STRINGS|
 188                         ASN1_OBJECT_FLAG_DYNAMIC_DATA;
 189         }
 190
 191 static void cleanup2(ADDED_OBJ *a)
 192         { a->obj->nid++; }
 193
 194 static void cleanup3(ADDED_OBJ *a)
 195         {
 196         if (--a->obj->nid == 0)
 197                 ASN1_OBJECT_free(a->obj);
 198         Free(a);
 199         }
 200
 201 void OBJ_cleanup(void)
 202         {
 203         if (added == NULL) return;
 204         added->down_load=0;
 205         lh_doall(added,cleanup1); /* zero counters */
 206         lh_doall(added,cleanup2); /* set counters */
 207         lh_doall(added,cleanup3); /* free objects */
 208         lh_free(added);
 209         added=NULL;
 210         }
 211
 212 int OBJ_new_nid(int num)
 213         {
 214         int i;
 215
 216         i=new_nid;
 217         new_nid+=num;
 218         return(i);
 219         }
 220
 221 int OBJ_add_object(ASN1_OBJECT *obj)
 222         {
 223         ASN1_OBJECT *o;
 224         ADDED_OBJ *ao[4],*aop;
 225         int i;
 226
 227         if (added == NULL)
 228                 if (!init_added()) return(0);
 229         if ((o=OBJ_dup(obj)) == NULL) goto err;
 230         ao[ADDED_DATA]=NULL;
 231         ao[ADDED_SNAME]=NULL;
 232         ao[ADDED_LNAME]=NULL;
 233         ao[ADDED_NID]=NULL;
 234         ao[ADDED_NID]=(ADDED_OBJ *)Malloc(sizeof(ADDED_OBJ));
 235         if ((o->length != 0) && (obj->data != NULL))
 236                 ao[ADDED_DATA]=(ADDED_OBJ *)Malloc(sizeof(ADDED_OBJ));
 237         if (o->sn != NULL)
 238                 ao[ADDED_SNAME]=(ADDED_OBJ *)Malloc(sizeof(ADDED_OBJ));
 239         if (o->ln != NULL)
 240                 ao[ADDED_LNAME]=(ADDED_OBJ *)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,(char *)ao[i]);
 249                         /* memory leak, buit should not normally matter */
 250                         if (aop != NULL)
 251                                 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) Free(ao[i]);
 261         if (o != NULL) 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,(char *)&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,(char *)&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,(char *)&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,(char *)&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 *),(int (*)())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 *)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         Free(buf);
 425         return op;
 426         }
 427
 428 int OBJ_txt2nid(char *s)
 429 {
 430         ASN1_OBJECT *obj;
 431         int nid;
 432         obj = OBJ_txt2obj(s, 0);
 433         nid = OBJ_obj2nid(obj);
 434         ASN1_OBJECT_free(obj);
 435         return nid;
 436 }
 437
 438 int OBJ_ln2nid(const char *s)
 439         {
 440         ASN1_OBJECT o,*oo= &o,**op;
 441         ADDED_OBJ ad,*adp;
 442
 443         o.ln=s;
 444         if (added != NULL)
 445                 {
 446                 ad.type=ADDED_LNAME;
 447                 ad.obj= &o;
 448                 adp=(ADDED_OBJ *)lh_retrieve(added,(char *)&ad);
 449                 if (adp != NULL) return (adp->obj->nid);
 450                 }
 451         op=(ASN1_OBJECT **)OBJ_bsearch((char *)&oo,(char *)ln_objs,NUM_LN,
 452                 sizeof(ASN1_OBJECT *),(int (*)())ln_cmp);
 453         if (op == NULL) return(NID_undef);
 454         return((*op)->nid);
 455         }
 456
 457 int OBJ_sn2nid(const char *s)
 458         {
 459         ASN1_OBJECT o,*oo= &o,**op;
 460         ADDED_OBJ ad,*adp;
 461
 462         o.sn=s;
 463         if (added != NULL)
 464                 {
 465                 ad.type=ADDED_SNAME;
 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 *)sn_objs,NUM_SN,
 471                 sizeof(ASN1_OBJECT *),(int (*)())sn_cmp);
 472         if (op == NULL) return(NID_undef);
 473         return((*op)->nid);
 474         }
 475
 476 static int obj_cmp(ASN1_OBJECT **ap, ASN1_OBJECT **bp)
 477         {
 478         int j;
 479         ASN1_OBJECT *a= *ap;
 480         ASN1_OBJECT *b= *bp;
 481
 482         j=(a->length - b->length);
 483         if (j) return(j);
 484         return(memcmp(a->data,b->data,a->length));
 485         }
 486
 487 char *OBJ_bsearch(char *key, char *base, int num, int size, int (*cmp)())
 488         {
 489         int l,h,i,c;
 490         char *p;
 491
 492         if (num == 0) return(NULL);
 493         l=0;
 494         h=num;
 495         while (l < h)
 496                 {
 497                 i=(l+h)/2;
 498                 p= &(base[i*size]);
 499                 c=(*cmp)(key,p);
 500                 if (c < 0)
 501                         h=i;
 502                 else if (c > 0)
 503                         l=i+1;
 504                 else
 505                         return(p);
 506                 }
 507         return(NULL);
 508         }
 509
 510 int OBJ_create_objects(BIO *in)
 511         {
 512         MS_STATIC char buf[512];
 513         int i,num=0;
 514         char *o,*s,*l=NULL;
 515
 516         for (;;)
 517                 {
 518                 s=o=NULL;
 519                 i=BIO_gets(in,buf,512);
 520                 if (i <= 0) return(num);
 521                 buf[i-1]='\0';
 522                 if (!isalnum(buf[0])) return(num);
 523                 o=s=buf;
 524                 while (isdigit(*s) || (*s == '.'))
 525                         s++;
 526                 if (*s != '\0')
 527                         {
 528                         *(s++)='\0';
 529                         while (isspace(*s))
 530                                 s++;
 531                         if (*s == '\0')
 532                                 s=NULL;
 533                         else
 534                                 {
 535                                 l=s;
 536                                 while ((*l != '\0') && !isspace(*l))
 537                                         l++;
 538                                 if (*l != '\0')
 539                                         {
 540                                         *(l++)='\0';
 541                                         while (isspace(*l))
 542                                                 l++;
 543                                         if (*l == '\0') l=NULL;
 544                                         }
 545                                 else
 546                                         l=NULL;
 547                                 }
 548                         }
 549                 else
 550                         s=NULL;
 551                 if ((o == NULL) || (*o == '\0')) return(num);
 552                 if (!OBJ_create(o,s,l)) return(num);
 553                 num++;
 554                 }
 555         /* return(num); */
 556         }
 557
 558 int OBJ_create(char *oid, char *sn, char *ln)
 559         {
 560         int ok=0;
 561         ASN1_OBJECT *op=NULL;
 562         unsigned char *buf;
 563         int i;
 564
 565         i=a2d_ASN1_OBJECT(NULL,0,oid,-1);
 566         if (i <= 0) return(0);
 567
 568         if ((buf=(unsigned char *)Malloc(i)) == NULL)
 569                 {
 570                 OBJerr(OBJ_F_OBJ_CREATE,OBJ_R_MALLOC_FAILURE);
 571                 return(0);
 572                 }
 573         i=a2d_ASN1_OBJECT(buf,i,oid,-1);
 574         op=(ASN1_OBJECT *)ASN1_OBJECT_create(OBJ_new_nid(1),buf,i,sn,ln);
 575         if (op == NULL)
 576                 goto err;
 577         ok=OBJ_add_object(op);
 578 err:
 579         ASN1_OBJECT_free(op);
 580         Free((char *)buf);
 581         return(ok);
 582         }
 583