/* 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) { 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; } void *X509at_get0_data_by_OBJ(STACK_OF(X509_ATTRIBUTE) *x, ASN1_OBJECT *obj, int lastpos, int type) { int i; X509_ATTRIBUTE *at; i = X509at_get_attr_by_OBJ(x, obj, lastpos); if (i == -1) return NULL; if ((lastpos <= -2) && (X509at_get_attr_by_OBJ(x, obj, i) != -1)) return NULL; at = X509at_get_attr(x, i); if (lastpos <= -3 && (X509_ATTRIBUTE_count(at) != 1)) return NULL; return X509_ATTRIBUTE_get0_data(at, 0, type, NULL); } 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 = NULL; int atype = 0; 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 (len != -1){ 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; attr->single = 0; /* This is a bit naughty because the attribute should really have * at least one value but some types use and zero length SET and * require this. */ if (attrtype == 0) return 1; if(!(ttmp = ASN1_TYPE_new())) goto err; if ((len == -1) && !(attrtype & MBSTRING_FLAG)) { if (!ASN1_TYPE_set1(ttmp, attrtype, data)) goto err; } else ASN1_TYPE_set(ttmp, atype, stmp); if(!sk_ASN1_TYPE_push(attr->value.set, ttmp)) goto err; 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; }