1 /* crypto/x509/x509name.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 <openssl/stack.h>

    61 #include "cryptlib.h"

    62 #include <openssl/asn1.h>

    63 #include <openssl/objects.h>

    64 #include <openssl/evp.h>

    65 #include <openssl/x509.h>

    66 

    67 EXPORT_C int X509_NAME_get_text_by_NID(X509_NAME *name, int nid, char *buf, int len)

    68 	{

    69 	ASN1_OBJECT *obj;

    70 

    71 	obj=OBJ_nid2obj(nid);

    72 	if (obj == NULL) return(-1);

    73 	return(X509_NAME_get_text_by_OBJ(name,obj,buf,len));

    74 	}

    75 

    76 EXPORT_C int X509_NAME_get_text_by_OBJ(X509_NAME *name, ASN1_OBJECT *obj, char *buf,

    77 	     int len)

    78 	{

    79 	int i;

    80 	ASN1_STRING *data;

    81 

    82 	i=X509_NAME_get_index_by_OBJ(name,obj,-1);

    83 	if (i < 0) return(-1);

    84 	data=X509_NAME_ENTRY_get_data(X509_NAME_get_entry(name,i));

    85 	i=(data->length > (len-1))?(len-1):data->length;

    86 	if (buf == NULL) return(data->length);

    87 	memcpy(buf,data->data,i);

    88 	buf[i]='\0';

    89 	return(i);

    90 	}

    91 

    92 EXPORT_C int X509_NAME_entry_count(X509_NAME *name)

    93 	{

    94 	if (name == NULL) return(0);

    95 	return(sk_X509_NAME_ENTRY_num(name->entries));

    96 	}

    97 

    98 EXPORT_C int X509_NAME_get_index_by_NID(X509_NAME *name, int nid, int lastpos)

    99 	{

   100 	ASN1_OBJECT *obj;

   101 

   102 	obj=OBJ_nid2obj(nid);

   103 	if (obj == NULL) return(-2);

   104 	return(X509_NAME_get_index_by_OBJ(name,obj,lastpos));

   105 	}

   106 

   107 /* NOTE: you should be passsing -1, not 0 as lastpos */

   108 EXPORT_C int X509_NAME_get_index_by_OBJ(X509_NAME *name, ASN1_OBJECT *obj,

   109 	     int lastpos)

   110 	{

   111 	int n;

   112 	X509_NAME_ENTRY *ne;

   113 	STACK_OF(X509_NAME_ENTRY) *sk;

   114 

   115 	if (name == NULL) return(-1);

   116 	if (lastpos < 0)

   117 		lastpos= -1;

   118 	sk=name->entries;

   119 	n=sk_X509_NAME_ENTRY_num(sk);

   120 	for (lastpos++; lastpos < n; lastpos++)

   121 		{

   122 		ne=sk_X509_NAME_ENTRY_value(sk,lastpos);

   123 		if (OBJ_cmp(ne->object,obj) == 0)

   124 			return(lastpos);

   125 		}

   126 	return(-1);

   127 	}

   128 

   129 EXPORT_C X509_NAME_ENTRY *X509_NAME_get_entry(X509_NAME *name, int loc)

   130 	{

   131 	if(name == NULL || sk_X509_NAME_ENTRY_num(name->entries) <= loc

   132 	   || loc < 0)

   133 		return(NULL);

   134 	else

   135 		return(sk_X509_NAME_ENTRY_value(name->entries,loc));

   136 	}

   137 

   138 EXPORT_C X509_NAME_ENTRY *X509_NAME_delete_entry(X509_NAME *name, int loc)

   139 	{

   140 	X509_NAME_ENTRY *ret;

   141 	int i,n,set_prev,set_next;

   142 	STACK_OF(X509_NAME_ENTRY) *sk;

   143 

   144 	if (name == NULL || sk_X509_NAME_ENTRY_num(name->entries) <= loc

   145 	    || loc < 0)

   146 		return(NULL);

   147 	sk=name->entries;

   148 	ret=sk_X509_NAME_ENTRY_delete(sk,loc);

   149 	n=sk_X509_NAME_ENTRY_num(sk);

   150 	name->modified=1;

   151 	if (loc == n) return(ret);

   152 

   153 	/* else we need to fixup the set field */

   154 	if (loc != 0)

   155 		set_prev=(sk_X509_NAME_ENTRY_value(sk,loc-1))->set;

   156 	else

   157 		set_prev=ret->set-1;

   158 	set_next=sk_X509_NAME_ENTRY_value(sk,loc)->set;

   159 

   160 	/* set_prev is the previous set

   161 	 * set is the current set

   162 	 * set_next is the following

   163 	 * prev  1 1	1 1	1 1	1 1

   164 	 * set   1	1	2	2

   165 	 * next  1 1	2 2	2 2	3 2

   166 	 * so basically only if prev and next differ by 2, then

   167 	 * re-number down by 1 */

   168 	if (set_prev+1 < set_next)

   169 		for (i=loc; i<n; i++)

   170 			sk_X509_NAME_ENTRY_value(sk,i)->set--;

   171 	return(ret);

   172 	}

   173 

   174 EXPORT_C int X509_NAME_add_entry_by_OBJ(X509_NAME *name, ASN1_OBJECT *obj, int type,

   175 			unsigned char *bytes, int len, int loc, int set)

   176 {

   177 	X509_NAME_ENTRY *ne;

   178 	int ret;

   179 	ne = X509_NAME_ENTRY_create_by_OBJ(NULL, obj, type, bytes, len);

   180 	if(!ne) return 0;

   181 	ret = X509_NAME_add_entry(name, ne, loc, set);

   182 	X509_NAME_ENTRY_free(ne);

   183 	return ret;

   184 }

   185 

   186 EXPORT_C int X509_NAME_add_entry_by_NID(X509_NAME *name, int nid, int type,

   187 			unsigned char *bytes, int len, int loc, int set)

   188 {

   189 	X509_NAME_ENTRY *ne;

   190 	int ret;

   191 	ne = X509_NAME_ENTRY_create_by_NID(NULL, nid, type, bytes, len);

   192 	if(!ne) return 0;

   193 	ret = X509_NAME_add_entry(name, ne, loc, set);

   194 	X509_NAME_ENTRY_free(ne);

   195 	return ret;

   196 }

   197 

   198 EXPORT_C int X509_NAME_add_entry_by_txt(X509_NAME *name, const char *field, int type,

   199 			const unsigned char *bytes, int len, int loc, int set)

   200 {

   201 	X509_NAME_ENTRY *ne;

   202 	int ret;

   203 	ne = X509_NAME_ENTRY_create_by_txt(NULL, field, type, bytes, len);

   204 	if(!ne) return 0;

   205 	ret = X509_NAME_add_entry(name, ne, loc, set);

   206 	X509_NAME_ENTRY_free(ne);

   207 	return ret;

   208 }

   209 

   210 /* if set is -1, append to previous set, 0 'a new one', and 1,

   211  * prepend to the guy we are about to stomp on. */

   212 EXPORT_C int X509_NAME_add_entry(X509_NAME *name, X509_NAME_ENTRY *ne, int loc,

   213 	     int set)

   214 	{

   215 	X509_NAME_ENTRY *new_name=NULL;

   216 	int n,i,inc;

   217 	STACK_OF(X509_NAME_ENTRY) *sk;

   218 

   219 	if (name == NULL) return(0);

   220 	sk=name->entries;

   221 	n=sk_X509_NAME_ENTRY_num(sk);

   222 	if (loc > n) loc=n;

   223 	else if (loc < 0) loc=n;

   224 

   225 	name->modified=1;

   226 

   227 	if (set == -1)

   228 		{

   229 		if (loc == 0)

   230 			{

   231 			set=0;

   232 			inc=1;

   233 			}

   234 		else

   235 			{

   236 			set=sk_X509_NAME_ENTRY_value(sk,loc-1)->set;

   237 			inc=0;

   238 			}

   239 		}

   240 	else /* if (set >= 0) */

   241 		{

   242 		if (loc >= n)

   243 			{

   244 			if (loc != 0)

   245 				set=sk_X509_NAME_ENTRY_value(sk,loc-1)->set+1;

   246 			else

   247 				set=0;

   248 			}

   249 		else

   250 			set=sk_X509_NAME_ENTRY_value(sk,loc)->set;

   251 		inc=(set == 0)?1:0;

   252 		}

   253 

   254 	if ((new_name=X509_NAME_ENTRY_dup(ne)) == NULL)

   255 		goto err;

   256 	new_name->set=set;

   257 	if (!sk_X509_NAME_ENTRY_insert(sk,new_name,loc))

   258 		{

   259 		X509err(X509_F_X509_NAME_ADD_ENTRY,ERR_R_MALLOC_FAILURE);

   260 		goto err;

   261 		}

   262 	if (inc)

   263 		{

   264 		n=sk_X509_NAME_ENTRY_num(sk);

   265 		for (i=loc+1; i<n; i++)

   266 			sk_X509_NAME_ENTRY_value(sk,i-1)->set+=1;

   267 		}	

   268 	return(1);

   269 err:

   270 	if (new_name != NULL)

   271 		X509_NAME_ENTRY_free(new_name);

   272 	return(0);

   273 	}

   274 

   275 EXPORT_C X509_NAME_ENTRY *X509_NAME_ENTRY_create_by_txt(X509_NAME_ENTRY **ne,

   276 		const char *field, int type, const unsigned char *bytes, int len)

   277 	{

   278 	ASN1_OBJECT *obj;

   279 	X509_NAME_ENTRY *nentry;

   280 

   281 	obj=OBJ_txt2obj(field, 0);

   282 	if (obj == NULL)

   283 		{

   284 		X509err(X509_F_X509_NAME_ENTRY_CREATE_BY_TXT,

   285 						X509_R_INVALID_FIELD_NAME);

   286 		ERR_add_error_data(2, "name=", field);

   287 		return(NULL);

   288 		}

   289 	nentry = X509_NAME_ENTRY_create_by_OBJ(ne,obj,type,bytes,len);

   290 	ASN1_OBJECT_free(obj);

   291 	return nentry;

   292 	}

   293 

   294 EXPORT_C X509_NAME_ENTRY *X509_NAME_ENTRY_create_by_NID(X509_NAME_ENTRY **ne, int nid,

   295 	     int type, unsigned char *bytes, int len)

   296 	{

   297 	ASN1_OBJECT *obj;

   298 	X509_NAME_ENTRY *nentry;

   299 

   300 	obj=OBJ_nid2obj(nid);

   301 	if (obj == NULL)

   302 		{

   303 		X509err(X509_F_X509_NAME_ENTRY_CREATE_BY_NID,X509_R_UNKNOWN_NID);

   304 		return(NULL);

   305 		}

   306 	nentry = X509_NAME_ENTRY_create_by_OBJ(ne,obj,type,bytes,len);

   307 	ASN1_OBJECT_free(obj);

   308 	return nentry;

   309 	}

   310 

   311 EXPORT_C X509_NAME_ENTRY *X509_NAME_ENTRY_create_by_OBJ(X509_NAME_ENTRY **ne,

   312 	     ASN1_OBJECT *obj, int type, const unsigned char *bytes, int len)

   313 	{

   314 	X509_NAME_ENTRY *ret;

   315 

   316 	if ((ne == NULL) || (*ne == NULL))

   317 		{

   318 		if ((ret=X509_NAME_ENTRY_new()) == NULL)

   319 			return(NULL);

   320 		}

   321 	else

   322 		ret= *ne;

   323 

   324 	if (!X509_NAME_ENTRY_set_object(ret,obj))

   325 		goto err;

   326 	if (!X509_NAME_ENTRY_set_data(ret,type,bytes,len))

   327 		goto err;

   328 

   329 	if ((ne != NULL) && (*ne == NULL)) *ne=ret;

   330 	return(ret);

   331 err:

   332 	if ((ne == NULL) || (ret != *ne))

   333 		X509_NAME_ENTRY_free(ret);

   334 	return(NULL);

   335 	}

   336 

   337 EXPORT_C int X509_NAME_ENTRY_set_object(X509_NAME_ENTRY *ne, ASN1_OBJECT *obj)

   338 	{

   339 	if ((ne == NULL) || (obj == NULL))

   340 		{

   341 		X509err(X509_F_X509_NAME_ENTRY_SET_OBJECT,ERR_R_PASSED_NULL_PARAMETER);

   342 		return(0);

   343 		}

   344 	ASN1_OBJECT_free(ne->object);

   345 	ne->object=OBJ_dup(obj);

   346 	return((ne->object == NULL)?0:1);

   347 	}

   348 

   349 EXPORT_C int X509_NAME_ENTRY_set_data(X509_NAME_ENTRY *ne, int type,

   350 	     const unsigned char *bytes, int len)

   351 	{

   352 	int i;

   353 

   354 	if ((ne == NULL) || ((bytes == NULL) && (len != 0))) return(0);

   355 	if((type > 0) && (type & MBSTRING_FLAG)) 

   356 		return ASN1_STRING_set_by_NID(&ne->value, bytes,

   357 						len, type,

   358 					OBJ_obj2nid(ne->object)) ? 1 : 0;

   359 	if (len < 0) len=strlen((char *)bytes);

   360 	i=ASN1_STRING_set(ne->value,bytes,len);

   361 	if (!i) return(0);

   362 	if (type != V_ASN1_UNDEF)

   363 		{

   364 		if (type == V_ASN1_APP_CHOOSE)

   365 			ne->value->type=ASN1_PRINTABLE_type(bytes,len);

   366 		else

   367 			ne->value->type=type;

   368 		}

   369 	return(1);

   370 	}

   371 

   372 EXPORT_C ASN1_OBJECT *X509_NAME_ENTRY_get_object(X509_NAME_ENTRY *ne)

   373 	{

   374 	if (ne == NULL) return(NULL);

   375 	return(ne->object);

   376 	}

   377 

   378 EXPORT_C ASN1_STRING *X509_NAME_ENTRY_get_data(X509_NAME_ENTRY *ne)

   379 	{

   380 	if (ne == NULL) return(NULL);

   381 	return(ne->value);

   382 	}

   383