| /* 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 <openssl/asn1.h> |
| #include <openssl/err.h> |
| #include <openssl/evp.h> |
| #include <openssl/obj.h> |
| #include <openssl/stack.h> |
| #include <openssl/x509.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) |
| { |
| const 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, |
| const 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 || loc < 0 || sk_X509_ATTRIBUTE_num(x) <= (size_t)loc) |
| 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 || loc < 0 || sk_X509_ATTRIBUTE_num(x) <= (size_t)loc) |
| 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) { |
| OPENSSL_PUT_ERROR(X509, 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: |
| OPENSSL_PUT_ERROR(X509, 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) |
| { |
| const ASN1_OBJECT *obj; |
| |
| obj = OBJ_nid2obj(nid); |
| if (obj == NULL) { |
| OPENSSL_PUT_ERROR(X509, X509_R_UNKNOWN_NID); |
| return (NULL); |
| } |
| return X509_ATTRIBUTE_create_by_OBJ(attr, obj, atrtype, data, len); |
| } |
| |
| 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) { |
| OPENSSL_PUT_ERROR(X509, 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) { |
| OPENSSL_PUT_ERROR(X509, 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 attr->object != NULL; |
| } |
| |
| 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) { |
| OPENSSL_PUT_ERROR(X509, 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: |
| OPENSSL_PUT_ERROR(X509, 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)) { |
| OPENSSL_PUT_ERROR(X509, 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; |
| } |
