x509_att.c
上传用户:yisoukefu
上传日期:2020-08-09
资源大小:39506k
文件大小:10k
- /* crypto/x509/x509_att.c */
- /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
- * All rights reserved.
- *
- * This package is an SSL implementation written
- * by Eric Young (eay@cryptsoft.com).
- * The implementation was written so as to conform with Netscapes SSL.
- *
- * This library is free for commercial and non-commercial use as long as
- * the following conditions are aheared to. The following conditions
- * apply to all code found in this distribution, be it the RC4, RSA,
- * lhash, DES, etc., code; not just the SSL code. The SSL documentation
- * included with this distribution is covered by the same copyright terms
- * except that the holder is Tim Hudson (tjh@cryptsoft.com).
- *
- * Copyright remains Eric Young's, and as such any Copyright notices in
- * the code are not to be removed.
- * If this package is used in a product, Eric Young should be given attribution
- * as the author of the parts of the library used.
- * This can be in the form of a textual message at program startup or
- * in documentation (online or textual) provided with the package.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * "This product includes cryptographic software written by
- * Eric Young (eay@cryptsoft.com)"
- * The word 'cryptographic' can be left out if the rouines from the library
- * being used are not cryptographic related :-).
- * 4. If you include any Windows specific code (or a derivative thereof) from
- * the apps directory (application code) you must include an acknowledgement:
- * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
- *
- * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- * The licence and distribution terms for any publically available version or
- * derivative of this code cannot be changed. i.e. this code cannot simply be
- * copied and put under another distribution licence
- * [including the GNU Public Licence.]
- */
- #include <stdio.h>
- #include <openssl/stack.h>
- #include "cryptlib.h"
- #include <openssl/asn1.h>
- #include <openssl/objects.h>
- #include <openssl/evp.h>
- #include <openssl/x509.h>
- #include <openssl/x509v3.h>
- int X509at_get_attr_count(const STACK_OF(X509_ATTRIBUTE) *x)
- {
- if (!x) return 0;
- return(sk_X509_ATTRIBUTE_num(x));
- }
- int X509at_get_attr_by_NID(const STACK_OF(X509_ATTRIBUTE) *x, int nid,
- int lastpos)
- {
- ASN1_OBJECT *obj;
- obj=OBJ_nid2obj(nid);
- if (obj == NULL) return(-2);
- return(X509at_get_attr_by_OBJ(x,obj,lastpos));
- }
- int X509at_get_attr_by_OBJ(const STACK_OF(X509_ATTRIBUTE) *sk, ASN1_OBJECT *obj,
- int lastpos)
- {
- int n;
- X509_ATTRIBUTE *ex;
- if (sk == NULL) return(-1);
- lastpos++;
- if (lastpos < 0)
- lastpos=0;
- n=sk_X509_ATTRIBUTE_num(sk);
- for ( ; lastpos < n; lastpos++)
- {
- ex=sk_X509_ATTRIBUTE_value(sk,lastpos);
- if (OBJ_cmp(ex->object,obj) == 0)
- return(lastpos);
- }
- return(-1);
- }
- X509_ATTRIBUTE *X509at_get_attr(const STACK_OF(X509_ATTRIBUTE) *x, int loc)
- {
- if (x == NULL || sk_X509_ATTRIBUTE_num(x) <= loc || loc < 0)
- return NULL;
- else
- return sk_X509_ATTRIBUTE_value(x,loc);
- }
- X509_ATTRIBUTE *X509at_delete_attr(STACK_OF(X509_ATTRIBUTE) *x, int loc)
- {
- X509_ATTRIBUTE *ret;
- if (x == NULL || sk_X509_ATTRIBUTE_num(x) <= loc || loc < 0)
- return(NULL);
- ret=sk_X509_ATTRIBUTE_delete(x,loc);
- return(ret);
- }
- STACK_OF(X509_ATTRIBUTE) *X509at_add1_attr(STACK_OF(X509_ATTRIBUTE) **x,
- X509_ATTRIBUTE *attr)
- {
- X509_ATTRIBUTE *new_attr=NULL;
- STACK_OF(X509_ATTRIBUTE) *sk=NULL;
- if (x == NULL)
- {
- X509err(X509_F_X509AT_ADD1_ATTR, ERR_R_PASSED_NULL_PARAMETER);
- goto err2;
- }
- if (*x == NULL)
- {
- if ((sk=sk_X509_ATTRIBUTE_new_null()) == NULL)
- goto err;
- }
- else
- sk= *x;
- if ((new_attr=X509_ATTRIBUTE_dup(attr)) == NULL)
- goto err2;
- if (!sk_X509_ATTRIBUTE_push(sk,new_attr))
- goto err;
- if (*x == NULL)
- *x=sk;
- return(sk);
- err:
- X509err(X509_F_X509AT_ADD1_ATTR,ERR_R_MALLOC_FAILURE);
- err2:
- if (new_attr != NULL) X509_ATTRIBUTE_free(new_attr);
- if (sk != NULL) sk_X509_ATTRIBUTE_free(sk);
- return(NULL);
- }
- STACK_OF(X509_ATTRIBUTE) *X509at_add1_attr_by_OBJ(STACK_OF(X509_ATTRIBUTE) **x,
- const ASN1_OBJECT *obj, int type,
- const unsigned char *bytes, int len)
- {
- X509_ATTRIBUTE *attr;
- STACK_OF(X509_ATTRIBUTE) *ret;
- attr = X509_ATTRIBUTE_create_by_OBJ(NULL, obj, type, bytes, len);
- if(!attr) return 0;
- ret = X509at_add1_attr(x, attr);
- X509_ATTRIBUTE_free(attr);
- return ret;
- }
- STACK_OF(X509_ATTRIBUTE) *X509at_add1_attr_by_NID(STACK_OF(X509_ATTRIBUTE) **x,
- int nid, int type,
- const unsigned char *bytes, int len)
- {
- X509_ATTRIBUTE *attr;
- STACK_OF(X509_ATTRIBUTE) *ret;
- attr = X509_ATTRIBUTE_create_by_NID(NULL, nid, type, bytes, len);
- if(!attr) return 0;
- ret = X509at_add1_attr(x, attr);
- X509_ATTRIBUTE_free(attr);
- return ret;
- }
- STACK_OF(X509_ATTRIBUTE) *X509at_add1_attr_by_txt(STACK_OF(X509_ATTRIBUTE) **x,
- const char *attrname, int type,
- const unsigned char *bytes, int len)
- {
- X509_ATTRIBUTE *attr;
- STACK_OF(X509_ATTRIBUTE) *ret;
- attr = X509_ATTRIBUTE_create_by_txt(NULL, attrname, type, bytes, len);
- if(!attr) return 0;
- ret = X509at_add1_attr(x, attr);
- X509_ATTRIBUTE_free(attr);
- return ret;
- }
- X509_ATTRIBUTE *X509_ATTRIBUTE_create_by_NID(X509_ATTRIBUTE **attr, int nid,
- int atrtype, const void *data, int len)
- {
- ASN1_OBJECT *obj;
- X509_ATTRIBUTE *ret;
- obj=OBJ_nid2obj(nid);
- if (obj == NULL)
- {
- X509err(X509_F_X509_ATTRIBUTE_CREATE_BY_NID,X509_R_UNKNOWN_NID);
- return(NULL);
- }
- ret=X509_ATTRIBUTE_create_by_OBJ(attr,obj,atrtype,data,len);
- if (ret == NULL) ASN1_OBJECT_free(obj);
- return(ret);
- }
- X509_ATTRIBUTE *X509_ATTRIBUTE_create_by_OBJ(X509_ATTRIBUTE **attr,
- const ASN1_OBJECT *obj, int atrtype, const void *data, int len)
- {
- X509_ATTRIBUTE *ret;
- if ((attr == NULL) || (*attr == NULL))
- {
- if ((ret=X509_ATTRIBUTE_new()) == NULL)
- {
- X509err(X509_F_X509_ATTRIBUTE_CREATE_BY_OBJ,ERR_R_MALLOC_FAILURE);
- return(NULL);
- }
- }
- else
- ret= *attr;
- if (!X509_ATTRIBUTE_set1_object(ret,obj))
- goto err;
- if (!X509_ATTRIBUTE_set1_data(ret,atrtype,data,len))
- goto err;
-
- if ((attr != NULL) && (*attr == NULL)) *attr=ret;
- return(ret);
- err:
- if ((attr == NULL) || (ret != *attr))
- X509_ATTRIBUTE_free(ret);
- return(NULL);
- }
- X509_ATTRIBUTE *X509_ATTRIBUTE_create_by_txt(X509_ATTRIBUTE **attr,
- const char *atrname, int type, const unsigned char *bytes, int len)
- {
- ASN1_OBJECT *obj;
- X509_ATTRIBUTE *nattr;
- obj=OBJ_txt2obj(atrname, 0);
- if (obj == NULL)
- {
- X509err(X509_F_X509_ATTRIBUTE_CREATE_BY_TXT,
- X509_R_INVALID_FIELD_NAME);
- ERR_add_error_data(2, "name=", atrname);
- return(NULL);
- }
- nattr = X509_ATTRIBUTE_create_by_OBJ(attr,obj,type,bytes,len);
- ASN1_OBJECT_free(obj);
- return nattr;
- }
- int X509_ATTRIBUTE_set1_object(X509_ATTRIBUTE *attr, const ASN1_OBJECT *obj)
- {
- if ((attr == NULL) || (obj == NULL))
- return(0);
- ASN1_OBJECT_free(attr->object);
- attr->object=OBJ_dup(obj);
- return(1);
- }
- int X509_ATTRIBUTE_set1_data(X509_ATTRIBUTE *attr, int attrtype, const void *data, int len)
- {
- ASN1_TYPE *ttmp;
- ASN1_STRING *stmp;
- int atype;
- if (!attr) return 0;
- if(attrtype & MBSTRING_FLAG) {
- stmp = ASN1_STRING_set_by_NID(NULL, data, len, attrtype,
- OBJ_obj2nid(attr->object));
- if(!stmp) {
- X509err(X509_F_X509_ATTRIBUTE_SET1_DATA, ERR_R_ASN1_LIB);
- return 0;
- }
- atype = stmp->type;
- } else {
- if(!(stmp = ASN1_STRING_type_new(attrtype))) goto err;
- if(!ASN1_STRING_set(stmp, data, len)) goto err;
- atype = attrtype;
- }
- if(!(attr->value.set = sk_ASN1_TYPE_new_null())) goto err;
- if(!(ttmp = ASN1_TYPE_new())) goto err;
- if(!sk_ASN1_TYPE_push(attr->value.set, ttmp)) goto err;
- attr->single = 0;
- ASN1_TYPE_set(ttmp, atype, stmp);
- return 1;
- err:
- X509err(X509_F_X509_ATTRIBUTE_SET1_DATA, ERR_R_MALLOC_FAILURE);
- return 0;
- }
- int X509_ATTRIBUTE_count(X509_ATTRIBUTE *attr)
- {
- if(!attr->single) return sk_ASN1_TYPE_num(attr->value.set);
- if(attr->value.single) return 1;
- return 0;
- }
- ASN1_OBJECT *X509_ATTRIBUTE_get0_object(X509_ATTRIBUTE *attr)
- {
- if (attr == NULL) return(NULL);
- return(attr->object);
- }
- void *X509_ATTRIBUTE_get0_data(X509_ATTRIBUTE *attr, int idx,
- int atrtype, void *data)
- {
- ASN1_TYPE *ttmp;
- ttmp = X509_ATTRIBUTE_get0_type(attr, idx);
- if(!ttmp) return NULL;
- if(atrtype != ASN1_TYPE_get(ttmp)){
- X509err(X509_F_X509_ATTRIBUTE_GET0_DATA, X509_R_WRONG_TYPE);
- return NULL;
- }
- return ttmp->value.ptr;
- }
- ASN1_TYPE *X509_ATTRIBUTE_get0_type(X509_ATTRIBUTE *attr, int idx)
- {
- if (attr == NULL) return(NULL);
- if(idx >= X509_ATTRIBUTE_count(attr)) return NULL;
- if(!attr->single) return sk_ASN1_TYPE_value(attr->value.set, idx);
- else return attr->value.single;
- }