crypto/objects/obj_dat.c

   1 /* crypto/objects/obj_dat.c */
   2 /* Copyright (C) 1995-1997 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 "cryptlib.h"
  61 #include "lhash.h"
  62 #include "asn1.h"
  63 #include "objects.h"
  64
  65 /* obj_dat.h is generated from objects.h by obj_dat.pl */
  66 #include "obj_dat.h"
  67
  68 #ifndef NOPROTO
  69 static int sn_cmp(ASN1_OBJECT **a, ASN1_OBJECT **b);
  70 static int ln_cmp(ASN1_OBJECT **a, ASN1_OBJECT **b);
  71 static int obj_cmp(ASN1_OBJECT **a, ASN1_OBJECT **b);
  72 #else
  73 static int sn_cmp();
  74 static int ln_cmp();
  75 static int obj_cmp();
  76 #endif
  77
  78 #define ADDED_DATA      0
  79 #define ADDED_SNAME     1
  80 #define ADDED_LNAME     2
  81 #define ADDED_NID       3
  82
  83 typedef struct added_obj_st
  84         {
  85         int type;
  86         ASN1_OBJECT *obj;
  87         } ADDED_OBJ;
  88
  89 static int new_nid=NUM_NID;
  90 static LHASH *added=NULL;
  91
  92 static int sn_cmp(ap,bp)
  93 ASN1_OBJECT **ap;
  94 ASN1_OBJECT **bp;
  95         { return(strcmp((*ap)->sn,(*bp)->sn)); }
  96
  97 static int ln_cmp(ap,bp)
  98 ASN1_OBJECT **ap;
  99 ASN1_OBJECT **bp;
 100         { return(strcmp((*ap)->ln,(*bp)->ln)); }
 101
 102 static unsigned long add_hash(ca)
 103 ADDED_OBJ *ca;
 104         {
 105         ASN1_OBJECT *a;
 106         int i;
 107         unsigned long ret=0;
 108         unsigned char *p;
 109
 110         a=ca->obj;
 111         switch (ca->type)
 112                 {
 113         case ADDED_DATA:
 114                 ret=a->length<<20L;
 115                 p=(unsigned char *)a->data;
 116                 for (i=0; i<a->length; i++)
 117                         ret^=p[i]<<((i*3)%24);
 118                 break;
 119         case ADDED_SNAME:
 120                 ret=lh_strhash(a->sn);
 121                 break;
 122         case ADDED_LNAME:
 123                 ret=lh_strhash(a->ln);
 124                 break;
 125         case ADDED_NID:
 126                 ret=a->nid;
 127                 break;
 128         default:
 129                 abort();
 130                 }
 131         ret&=0x3fffffff;
 132         ret|=ca->type<<30L;
 133         return(ret);
 134         }
 135
 136 static int add_cmp(ca,cb)
 137 ADDED_OBJ *ca,*cb;
 138         {
 139         ASN1_OBJECT *a,*b;
 140         int i;
 141
 142         i=ca->type-cb->type;
 143         if (i) return(i);
 144         a=ca->obj;
 145         b=cb->obj;
 146         switch (ca->type)
 147                 {
 148         case ADDED_DATA:
 149                 i=(a->length - b->length);
 150                 if (i) return(i);
 151                 return(memcmp(a->data,b->data,a->length));
 152         case ADDED_SNAME:
 153                 if (a->sn == NULL) return(-1);
 154                 else if (b->sn == NULL) return(1);
 155                 else return(strcmp(a->sn,b->sn));
 156         case ADDED_LNAME:
 157                 if (a->ln == NULL) return(-1);
 158                 else if (b->ln == NULL) return(1);
 159                 else return(strcmp(a->ln,b->ln));
 160         case ADDED_NID:
 161                 return(a->nid-b->nid);
 162         default:
 163                 abort();
 164                 }
 165         }
 166
 167 static int init_added()
 168         {
 169         if (added != NULL) return(1);
 170         added=lh_new(add_hash,add_cmp);
 171         return(added != NULL);
 172         }
 173
 174 static void cleanup1(a)
 175 ADDED_OBJ *a;
 176         {
 177         a->obj->nid=0;
 178         a->obj->flags|=ASN1_OBJECT_FLAG_DYNAMIC|
 179                         ASN1_OBJECT_FLAG_DYNAMIC_STRINGS;
 180         }
 181
 182 static void cleanup2(a)
 183 ADDED_OBJ *a;
 184         { a->obj->nid++; }
 185
 186 static void cleanup3(a)
 187 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()
 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         }
 203
 204 int OBJ_new_nid(num)
 205 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(obj)
 215 ASN1_OBJECT *obj;
 216         {
 217         ASN1_OBJECT *o;
 218         ADDED_OBJ *ao[4],*aop;
 219         int i;
 220
 221         if (added == NULL)
 222                 if (!init_added()) return(0);
 223         if ((o=OBJ_dup(obj)) == NULL) goto err;
 224         ao[ADDED_DATA]=NULL;
 225         ao[ADDED_SNAME]=NULL;
 226         ao[ADDED_LNAME]=NULL;
 227         ao[ADDED_NID]=NULL;
 228         ao[ADDED_NID]=(ADDED_OBJ *)Malloc(sizeof(ADDED_OBJ));
 229         if ((o->length != 0) && (obj->data != NULL))
 230                 ao[ADDED_DATA]=(ADDED_OBJ *)Malloc(sizeof(ADDED_OBJ));
 231         if (o->sn != NULL)
 232                 ao[ADDED_SNAME]=(ADDED_OBJ *)Malloc(sizeof(ADDED_OBJ));
 233         if (o->ln != NULL)
 234                 ao[ADDED_LNAME]=(ADDED_OBJ *)Malloc(sizeof(ADDED_OBJ));
 235
 236         for (i=ADDED_DATA; i<=ADDED_NID; i++)
 237                 {
 238                 if (ao[i] != NULL)
 239                         {
 240                         ao[i]->type=i;
 241                         ao[i]->obj=o;
 242                         aop=(ADDED_OBJ *)lh_insert(added,(char *)ao[i]);
 243                         /* memory leak, buit should not normally matter */
 244                         if (aop != NULL)
 245                                 Free(aop);
 246                         }
 247                 }
 248         o->flags&= ~(ASN1_OBJECT_FLAG_DYNAMIC|ASN1_OBJECT_FLAG_DYNAMIC_STRINGS);
 249         return(o->nid);
 250 err:
 251         for (i=ADDED_DATA; i<=ADDED_NID; i++)
 252                 if (ao[i] != NULL) Free(ao[i]);
 253         if (o != NULL) Free(o);
 254         return(0);
 255         }
 256
 257 ASN1_OBJECT *OBJ_nid2obj(n)
 258 int n;
 259         {
 260         ADDED_OBJ ad,*adp;
 261         ASN1_OBJECT ob;
 262
 263         if ((n >= 0) && (n < NUM_NID))
 264                 {
 265                 if ((n != NID_undef) && (nid_objs[n].nid == NID_undef))
 266                         {
 267                         OBJerr(OBJ_F_OBJ_NID2OBJ,OBJ_R_UNKNOWN_NID);
 268                         return(NULL);
 269                         }
 270                 return((ASN1_OBJECT *)&(nid_objs[n]));
 271                 }
 272         else if (added == NULL)
 273                 return(NULL);
 274         else
 275                 {
 276                 ad.type=ADDED_NID;
 277                 ad.obj= &ob;
 278                 ob.nid=n;
 279                 adp=(ADDED_OBJ *)lh_retrieve(added,(char *)&ad);
 280                 if (adp != NULL)
 281                         return(adp->obj);
 282                 else
 283                         {
 284                         OBJerr(OBJ_F_OBJ_NID2OBJ,OBJ_R_UNKNOWN_NID);
 285                         return(NULL);
 286                         }
 287                 }
 288         }
 289
 290 char *OBJ_nid2sn(n)
 291 int n;
 292         {
 293         ADDED_OBJ ad,*adp;
 294         ASN1_OBJECT ob;
 295
 296         if ((n >= 0) && (n < NUM_NID))
 297                 {
 298                 if ((n != NID_undef) && (nid_objs[n].nid == NID_undef))
 299                         {
 300                         OBJerr(OBJ_F_OBJ_NID2SN,OBJ_R_UNKNOWN_NID);
 301                         return(NULL);
 302                         }
 303                 return(nid_objs[n].sn);
 304                 }
 305         else if (added == NULL)
 306                 return(NULL);
 307         else
 308                 {
 309                 ad.type=ADDED_NID;
 310                 ad.obj= &ob;
 311                 ob.nid=n;
 312                 adp=(ADDED_OBJ *)lh_retrieve(added,(char *)&ad);
 313                 if (adp != NULL)
 314                         return(adp->obj->sn);
 315                 else
 316                         {
 317                         OBJerr(OBJ_F_OBJ_NID2SN,OBJ_R_UNKNOWN_NID);
 318                         return(NULL);
 319                         }
 320                 }
 321         }
 322
 323 char *OBJ_nid2ln(n)
 324 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,(char *)&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(a)
 357 ASN1_OBJECT *a;
 358         {
 359         ASN1_OBJECT **op;
 360         ADDED_OBJ ad,*adp;
 361
 362         if (a == NULL)
 363                 return(NID_undef);
 364         if (a->nid != 0)
 365                 return(a->nid);
 366
 367         if (added != NULL)
 368                 {
 369                 ad.type=ADDED_DATA;
 370                 ad.obj=a;
 371                 adp=(ADDED_OBJ *)lh_retrieve(added,(char *)&ad);
 372                 if (adp != NULL) return (adp->obj->nid);
 373                 }
 374         op=(ASN1_OBJECT **)OBJ_bsearch((char *)&a,(char *)obj_objs,NUM_OBJ,
 375                 sizeof(ASN1_OBJECT *),(int (*)())obj_cmp);
 376         if (op == NULL)
 377                 return(NID_undef);
 378         return((*op)->nid);
 379         }
 380
 381 int OBJ_txt2nid(s)
 382 char *s;
 383         {
 384         int ret;
 385
 386         ret=OBJ_sn2nid(s);
 387         if (ret == NID_undef)
 388                 return(OBJ_ln2nid(s));
 389         else
 390                 return(ret);
 391         }
 392
 393 int OBJ_ln2nid(s)
 394 char *s;
 395         {
 396         ASN1_OBJECT o,*oo= &o,**op;
 397         ADDED_OBJ ad,*adp;
 398
 399         o.ln=s;
 400         if (added != NULL)
 401                 {
 402                 ad.type=ADDED_LNAME;
 403                 ad.obj= &o;
 404                 adp=(ADDED_OBJ *)lh_retrieve(added,(char *)&ad);
 405                 if (adp != NULL) return (adp->obj->nid);
 406                 }
 407         op=(ASN1_OBJECT **)OBJ_bsearch((char *)&oo,(char *)ln_objs,NUM_LN,
 408                 sizeof(ASN1_OBJECT *),(int (*)())ln_cmp);
 409         if (op == NULL) return(NID_undef);
 410         return((*op)->nid);
 411         }
 412
 413 int OBJ_sn2nid(s)
 414 char *s;
 415         {
 416         ASN1_OBJECT o,*oo= &o,**op;
 417         ADDED_OBJ ad,*adp;
 418
 419         o.sn=s;
 420         if (added != NULL)
 421                 {
 422                 ad.type=ADDED_SNAME;
 423                 ad.obj= &o;
 424                 adp=(ADDED_OBJ *)lh_retrieve(added,(char *)&ad);
 425                 if (adp != NULL) return (adp->obj->nid);
 426                 }
 427         op=(ASN1_OBJECT **)OBJ_bsearch((char *)&oo,(char *)sn_objs,NUM_SN,
 428                 sizeof(ASN1_OBJECT *),(int (*)())sn_cmp);
 429         if (op == NULL) return(NID_undef);
 430         return((*op)->nid);
 431         }
 432
 433 static int obj_cmp(ap, bp)
 434 ASN1_OBJECT **ap;
 435 ASN1_OBJECT **bp;
 436         {
 437         int j;
 438         ASN1_OBJECT *a= *ap;
 439         ASN1_OBJECT *b= *bp;
 440
 441         j=(a->length - b->length);
 442         if (j) return(j);
 443         return(memcmp(a->data,b->data,a->length));
 444         }
 445
 446 char *OBJ_bsearch(key,base,num,size,cmp)
 447 char *key;
 448 char *base;
 449 int num;
 450 int size;
 451 int (*cmp)();
 452         {
 453         int l,h,i,c;
 454         char *p;
 455
 456         if (num == 0) return(NULL);
 457         l=0;
 458         h=num;
 459         while (l < h)
 460                 {
 461                 i=(l+h)/2;
 462                 p= &(base[i*size]);
 463                 c=(*cmp)(key,p);
 464                 if (c < 0)
 465                         h=i;
 466                 else if (c > 0)
 467                         l=i+1;
 468                 else
 469                         return(p);
 470                 }
 471         return(NULL);
 472         }
 473
 474 int OBJ_create_and_add_object(oid,sn,ln)
 475 char *oid;
 476 char *sn;
 477 char *ln;
 478         {
 479         int ok=0;
 480         ASN1_OBJECT *op=NULL;
 481         unsigned char *buf;
 482         int i;
 483
 484         i=a2d_ASN1_OBJECT(NULL,0,oid,-1);
 485         if (i <= 0) return(0);
 486
 487         if ((buf=(unsigned char *)Malloc(i)) == NULL)
 488                 {
 489                 OBJerr(OBJ_F_OBJ_CREATE_AND_ADD_OBJECT,OBJ_R_MALLOC_FAILURE);
 490                 return(0);
 491                 }
 492         i=a2d_ASN1_OBJECT(buf,i,oid,-1);
 493         op=(ASN1_OBJECT *)ASN1_OBJECT_create(OBJ_new_nid(1),buf,i,sn,ln);
 494         if (op == NULL)
 495                 goto err;
 496         ok=OBJ_add_object(op);
 497 err:
 498         ASN1_OBJECT_free(op);
 499         Free((char *)buf);
 500         return(ok);
 501         }