79a474e8f2
it is just a place holder for functionality to be added later. Its been added now so the X509V3_EXT_METHOD structure shouldn't (hopefully) have to change after the release.
269 lines
7.9 KiB
C
269 lines
7.9 KiB
C
/* v3_akey.c */
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/* Written by Dr Stephen N Henson (shenson@bigfoot.com) for the OpenSSL
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* project 1999.
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*/
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/* ====================================================================
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* Copyright (c) 1999 The OpenSSL Project. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* 3. All advertising materials mentioning features or use of this
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* software must display the following acknowledgment:
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* "This product includes software developed by the OpenSSL Project
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* for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
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*
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* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
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* endorse or promote products derived from this software without
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* prior written permission. For written permission, please contact
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* licensing@OpenSSL.org.
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*
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* 5. Products derived from this software may not be called "OpenSSL"
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* nor may "OpenSSL" appear in their names without prior written
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* permission of the OpenSSL Project.
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*
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* 6. Redistributions of any form whatsoever must retain the following
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* acknowledgment:
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* "This product includes software developed by the OpenSSL Project
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* for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
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*
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* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
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* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
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* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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* ====================================================================
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*
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* This product includes cryptographic software written by Eric Young
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* (eay@cryptsoft.com). This product includes software written by Tim
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* Hudson (tjh@cryptsoft.com).
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*
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*/
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#include <stdio.h>
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#include "cryptlib.h"
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#include "conf.h"
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#include "asn1.h"
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#include "asn1_mac.h"
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#include "x509v3.h"
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#ifndef NOPROTO
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static STACK *i2v_AUTHORITY_KEYID(X509V3_EXT_METHOD *method, AUTHORITY_KEYID *akeyid, STACK *extlist);
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static AUTHORITY_KEYID *v2i_AUTHORITY_KEYID(X509V3_EXT_METHOD *method, X509V3_CTX *ctx, STACK *values);
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#else
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static STACK *i2v_AUTHORITY_KEYID();
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static AUTHORITY_KEYID *v2i_AUTHORITY_KEYID();
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#endif
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X509V3_EXT_METHOD v3_akey_id = {
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NID_authority_key_identifier, 0,
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(X509V3_EXT_NEW)AUTHORITY_KEYID_new,
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AUTHORITY_KEYID_free,
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(X509V3_EXT_D2I)d2i_AUTHORITY_KEYID,
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i2d_AUTHORITY_KEYID,
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NULL, NULL,
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(X509V3_EXT_I2V)i2v_AUTHORITY_KEYID,
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(X509V3_EXT_V2I)v2i_AUTHORITY_KEYID,
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NULL,NULL,
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NULL
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};
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/*
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* ASN1err(ASN1_F_AUTHORITY_KEYID_NEW,ERR_R_MALLOC_FAILURE);
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* ASN1err(ASN1_F_D2I_AUTHORITY_KEYID,ERR_R_MALLOC_FAILURE);
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*/
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int i2d_AUTHORITY_KEYID(a,pp)
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AUTHORITY_KEYID *a;
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unsigned char **pp;
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{
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M_ASN1_I2D_vars(a);
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M_ASN1_I2D_len_IMP_opt (a->keyid, i2d_ASN1_OCTET_STRING);
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M_ASN1_I2D_len_IMP_opt (a->issuer, i2d_GENERAL_NAMES);
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M_ASN1_I2D_len_IMP_opt (a->serial, i2d_ASN1_INTEGER);
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M_ASN1_I2D_seq_total();
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M_ASN1_I2D_put_IMP_opt (a->keyid, i2d_ASN1_OCTET_STRING, 0);
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M_ASN1_I2D_put_IMP_opt (a->issuer, i2d_GENERAL_NAMES, 1);
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M_ASN1_I2D_put_IMP_opt (a->serial, i2d_ASN1_INTEGER, 2);
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M_ASN1_I2D_finish();
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}
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AUTHORITY_KEYID *AUTHORITY_KEYID_new()
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{
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AUTHORITY_KEYID *ret=NULL;
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ASN1_CTX c;
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M_ASN1_New_Malloc(ret, AUTHORITY_KEYID);
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ret->keyid = NULL;
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ret->issuer = NULL;
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ret->serial = NULL;
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return (ret);
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M_ASN1_New_Error(ASN1_F_AUTHORITY_KEYID_NEW);
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}
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AUTHORITY_KEYID *d2i_AUTHORITY_KEYID(a,pp,length)
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AUTHORITY_KEYID **a;
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unsigned char **pp;
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long length;
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{
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M_ASN1_D2I_vars(a,AUTHORITY_KEYID *,AUTHORITY_KEYID_new);
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M_ASN1_D2I_Init();
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M_ASN1_D2I_start_sequence();
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M_ASN1_D2I_get_IMP_opt (ret->keyid, d2i_ASN1_OCTET_STRING, 0,
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V_ASN1_OCTET_STRING);
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M_ASN1_D2I_get_IMP_opt (ret->issuer, d2i_GENERAL_NAMES, 1,
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V_ASN1_SEQUENCE);
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M_ASN1_D2I_get_IMP_opt (ret->serial, d2i_ASN1_INTEGER, 2,
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V_ASN1_INTEGER);
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M_ASN1_D2I_Finish(a, AUTHORITY_KEYID_free, ASN1_F_D2I_AUTHORITY_KEYID);
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}
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void AUTHORITY_KEYID_free(a)
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AUTHORITY_KEYID *a;
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{
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if (a == NULL) return;
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ASN1_OCTET_STRING_free(a->keyid);
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sk_pop_free(a->issuer, GENERAL_NAME_free);
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ASN1_INTEGER_free (a->serial);
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Free ((char *)a);
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}
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static STACK *i2v_AUTHORITY_KEYID(method, akeyid, extlist)
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X509V3_EXT_METHOD *method;
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AUTHORITY_KEYID *akeyid;
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STACK *extlist;
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{
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char *tmp;
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if(akeyid->keyid) {
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tmp = hex_to_string(akeyid->keyid->data, akeyid->keyid->length);
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X509V3_add_value("keyid", tmp, &extlist);
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Free(tmp);
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}
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if(akeyid->issuer)
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extlist = i2v_GENERAL_NAMES(NULL, akeyid->issuer, extlist);
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if(akeyid->serial) {
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tmp = hex_to_string(akeyid->serial->data,
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akeyid->serial->length);
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X509V3_add_value("serial", tmp, &extlist);
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Free(tmp);
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}
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return extlist;
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}
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/* Currently two options:
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* keyid: use the issuers subject keyid, the value 'always' means its is
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* an error if the issuer certificate doesn't have a key id.
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* issuer: use the issuers cert issuer and serial number. The default is
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* to only use this if keyid is not present. With the option 'always'
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* this is always included.
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*/
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static AUTHORITY_KEYID *v2i_AUTHORITY_KEYID(method, ctx, values)
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X509V3_EXT_METHOD *method;
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X509V3_CTX *ctx;
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STACK *values;
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{
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char keyid=0, issuer=0;
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int i;
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CONF_VALUE *cnf;
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ASN1_OCTET_STRING *ikeyid = NULL;
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X509_NAME *isname = NULL;
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STACK * gens = NULL;
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GENERAL_NAME *gen = NULL;
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ASN1_INTEGER *serial = NULL;
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X509_EXTENSION *ext;
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X509 *cert;
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AUTHORITY_KEYID *akeyid;
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for(i = 0; i < sk_num(values); i++) {
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cnf = (CONF_VALUE *)sk_value(values, i);
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if(!strcmp(cnf->name, "keyid")) {
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keyid = 1;
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if(cnf->value && !strcmp(cnf->value, "always")) keyid = 2;
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} else if(!strcmp(cnf->name, "issuer")) {
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issuer = 1;
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if(cnf->value && !strcmp(cnf->value, "always")) issuer = 2;
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} else {
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X509V3err(X509V3_F_V2I_AUTHORITY_KEYID,X509V3_R_UNKNOWN_OPTION);
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ERR_add_error_data(2, "name=", cnf->name);
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return NULL;
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}
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}
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if(!ctx || !ctx->issuer_cert) {
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if(ctx && (ctx->flags==CTX_TEST)) return AUTHORITY_KEYID_new();
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X509V3err(X509V3_F_V2I_AUTHORITY_KEYID,X509V3_R_NO_ISSUER_CERTIFICATE);
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return NULL;
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}
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cert = ctx->issuer_cert;
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if(keyid) {
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i = X509_get_ext_by_NID(cert, NID_subject_key_identifier, -1);
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if((i >= 0) && (ext = X509_get_ext(cert, i)))
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ikeyid = (ASN1_OCTET_STRING *) X509V3_EXT_d2i(ext);
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if(keyid==2 && !ikeyid) {
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X509V3err(X509V3_F_V2I_AUTHORITY_KEYID,X509V3_R_UNABLE_TO_GET_ISSUER_KEYID);
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return NULL;
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}
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}
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if((issuer && !ikeyid) || (issuer == 2)) {
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isname = X509_NAME_dup(X509_get_issuer_name(cert));
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serial = ASN1_INTEGER_dup(X509_get_serialNumber(cert));
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if(!isname || !serial) {
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X509V3err(X509V3_F_V2I_AUTHORITY_KEYID,X509V3_R_UNABLE_TO_GET_ISSUER_DETAILS);
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goto err;
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}
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}
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if(!(akeyid = AUTHORITY_KEYID_new())) goto err;
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if(isname) {
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if(!(gens = sk_new(NULL)) || !(gen = GENERAL_NAME_new())
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|| !sk_push(gens, (char *)gen)) {
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X509V3err(X509V3_F_V2I_AUTHORITY_KEYID,ERR_R_MALLOC_FAILURE);
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goto err;
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}
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gen->type = GEN_DIRNAME;
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gen->d.dirn = isname;
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}
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akeyid->issuer = gens;
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akeyid->serial = serial;
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akeyid->keyid = ikeyid;
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return akeyid;
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err:
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X509_NAME_free(isname);
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ASN1_INTEGER_free(serial);
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ASN1_OCTET_STRING_free(ikeyid);
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return NULL;
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}
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