X-Git-Url: https://git.saurik.com/apple/security.git/blobdiff_plain/5dd5f9ec28f304ca377c42fd7f711d6cf12b90e1..5c19dc3ae3bd8e40a9c028b0deddd50ff337692c:/Security/libsecurity_smime/lib/cmsattr.c diff --git a/Security/libsecurity_smime/lib/cmsattr.c b/Security/libsecurity_smime/lib/cmsattr.c deleted file mode 100644 index 49603992..00000000 --- a/Security/libsecurity_smime/lib/cmsattr.c +++ /dev/null @@ -1,451 +0,0 @@ -/* - * The contents of this file are subject to the Mozilla Public - * License Version 1.1 (the "License"); you may not use this file - * except in compliance with the License. You may obtain a copy of - * the License at http://www.mozilla.org/MPL/ - * - * Software distributed under the License is distributed on an "AS - * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or - * implied. See the License for the specific language governing - * rights and limitations under the License. - * - * The Original Code is the Netscape security libraries. - * - * The Initial Developer of the Original Code is Netscape - * Communications Corporation. Portions created by Netscape are - * Copyright (C) 1994-2000 Netscape Communications Corporation. All - * Rights Reserved. - * - * Contributor(s): - * - * Alternatively, the contents of this file may be used under the - * terms of the GNU General Public License Version 2 or later (the - * "GPL"), in which case the provisions of the GPL are applicable - * instead of those above. If you wish to allow use of your - * version of this file only under the terms of the GPL and not to - * allow others to use your version of this file under the MPL, - * indicate your decision by deleting the provisions above and - * replace them with the notice and other provisions required by - * the GPL. If you do not delete the provisions above, a recipient - * may use your version of this file under either the MPL or the - * GPL. - */ - -/* - * CMS attributes. - */ - -#include "cmslocal.h" - -#include "secoid.h" -#include "secitem.h" - -#include -#include - -/* - * ------------------------------------------------------------------- - * XXX The following Attribute stuff really belongs elsewhere. - * The Attribute type is *not* part of CMS but rather X.501. - * But for now, since CMS is the only customer of attributes, - * we define them here. Once there is a use outside of CMS, - * then change the attribute types and functions from internal - * to external naming convention, and move them elsewhere! - */ - - -/* - * SecCmsAttributeCreate - create an attribute - * - * if value is NULL, the attribute won't have a value. It can be added later - * with SecCmsAttributeAddValue. - */ -SecCmsAttribute * -SecCmsAttributeCreate(PRArenaPool *poolp, SECOidTag oidtag, CSSM_DATA_PTR value, Boolean encoded) -{ - SecCmsAttribute *attr; - CSSM_DATA_PTR copiedvalue; - void *mark; - - PORT_Assert (poolp != NULL); - - mark = PORT_ArenaMark (poolp); - - attr = (SecCmsAttribute *)PORT_ArenaZAlloc(poolp, sizeof(SecCmsAttribute)); - if (attr == NULL) - goto loser; - - attr->typeTag = SECOID_FindOIDByTag(oidtag); - if (attr->typeTag == NULL) - goto loser; - - if (SECITEM_CopyItem(poolp, &(attr->type), &(attr->typeTag->oid)) != SECSuccess) - goto loser; - - if (value != NULL) { - if ((copiedvalue = SECITEM_AllocItem(poolp, NULL, value->Length)) == NULL) - goto loser; - - if (SECITEM_CopyItem(poolp, copiedvalue, value) != SECSuccess) - goto loser; - - if (SecCmsArrayAdd(poolp, (void ***)&(attr->values), (void *)copiedvalue) != SECSuccess) - goto loser; - } - - attr->encoded = encoded; - - PORT_ArenaUnmark (poolp, mark); - - return attr; - -loser: - PORT_Assert (mark != NULL); - PORT_ArenaRelease (poolp, mark); - return NULL; -} - -/* - * SecCmsAttributeAddValue - add another value to an attribute - */ -OSStatus -SecCmsAttributeAddValue(PLArenaPool *poolp, SecCmsAttribute *attr, CSSM_DATA_PTR value) -{ - CSSM_DATA copiedvalue; - void *mark; - - PORT_Assert (poolp != NULL); - - mark = PORT_ArenaMark(poolp); - - /* XXX we need an object memory model #$%#$%! */ - if (SECITEM_CopyItem(poolp, &copiedvalue, value) != SECSuccess) - goto loser; - - if (SecCmsArrayAdd(poolp, (void ***)&(attr->values), (void *)&copiedvalue) != SECSuccess) - goto loser; - - PORT_ArenaUnmark(poolp, mark); - return SECSuccess; - -loser: - PORT_Assert (mark != NULL); - PORT_ArenaRelease (poolp, mark); - return SECFailure; -} - -/* - * SecCmsAttributeGetType - return the OID tag - */ -SECOidTag -SecCmsAttributeGetType(SecCmsAttribute *attr) -{ - SECOidData *typetag; - - typetag = SECOID_FindOID(&(attr->type)); - if (typetag == NULL) - return SEC_OID_UNKNOWN; - - return typetag->offset; -} - -/* - * SecCmsAttributeGetValue - return the first attribute value - * - * We do some sanity checking first: - * - Multiple values are *not* expected. - * - Empty values are *not* expected. - */ -CSSM_DATA_PTR -SecCmsAttributeGetValue(SecCmsAttribute *attr) -{ - CSSM_DATA_PTR value; - - if (attr == NULL) - return NULL; - - value = attr->values[0]; - - if (value == NULL || value->Data == NULL || value->Length == 0) - return NULL; - - if (attr->values[1] != NULL) - return NULL; - - return value; -} - -/* - * SecCmsAttributeCompareValue - compare the attribute's first value against data - */ -Boolean -SecCmsAttributeCompareValue(SecCmsAttribute *attr, CSSM_DATA_PTR av) -{ - CSSM_DATA_PTR value; - - if (attr == NULL) - return PR_FALSE; - - value = SecCmsAttributeGetValue(attr); - - return (value != NULL && value->Length == av->Length && - PORT_Memcmp (value->Data, av->Data, value->Length) == 0); -} - -/* - * templates and functions for separate ASN.1 encoding of attributes - * - * used in SecCmsAttributeArrayReorder - */ - -/* - * helper function for dynamic template determination of the attribute value - */ -static const SecAsn1Template * -cms_attr_choose_attr_value_template(void *src_or_dest, Boolean encoding, const char *buf, void *dest) -{ - const SecAsn1Template *theTemplate; - SecCmsAttribute *attribute; - SECOidData *oiddata; - Boolean encoded; - - PORT_Assert (src_or_dest != NULL); - if (src_or_dest == NULL) - return NULL; - - attribute = (SecCmsAttribute *)src_or_dest; - - if (encoding && attribute->encoded) - /* we're encoding, and the attribute value is already encoded. */ - return SEC_ASN1_GET(kSecAsn1AnyTemplate); - - /* get attribute's typeTag */ - oiddata = attribute->typeTag; - if (oiddata == NULL) { - oiddata = SECOID_FindOID(&attribute->type); - attribute->typeTag = oiddata; - } - - if (oiddata == NULL) { - /* still no OID tag? OID is unknown then. en/decode value as ANY. */ - encoded = PR_TRUE; - theTemplate = SEC_ASN1_GET(kSecAsn1AnyTemplate); - } else { - switch (oiddata->offset) { - case SEC_OID_PKCS9_SMIME_CAPABILITIES: - case SEC_OID_SMIME_ENCRYPTION_KEY_PREFERENCE: - /* these guys need to stay DER-encoded */ - default: - /* same goes for OIDs that are not handled here */ - encoded = PR_TRUE; - theTemplate = SEC_ASN1_GET(kSecAsn1AnyTemplate); - break; - /* otherwise choose proper template */ - case SEC_OID_PKCS9_EMAIL_ADDRESS: - case SEC_OID_RFC1274_MAIL: - case SEC_OID_PKCS9_UNSTRUCTURED_NAME: - encoded = PR_FALSE; - theTemplate = SEC_ASN1_GET(kSecAsn1IA5StringTemplate); - break; - case SEC_OID_PKCS9_CONTENT_TYPE: - encoded = PR_FALSE; - theTemplate = SEC_ASN1_GET(kSecAsn1ObjectIDTemplate); - break; - case SEC_OID_PKCS9_MESSAGE_DIGEST: - encoded = PR_FALSE; - theTemplate = SEC_ASN1_GET(kSecAsn1OctetStringTemplate); - break; - case SEC_OID_PKCS9_SIGNING_TIME: - encoded = PR_FALSE; - theTemplate = SEC_ASN1_GET(kSecAsn1UTCTimeTemplate); // @@@ This should be a choice between UTCTime and GeneralizedTime -- mb - break; - /* XXX Want other types here, too */ - } - } - - if (encoding) { - /* - * If we are encoding and we think we have an already-encoded value, - * then the code which initialized this attribute should have set - * the "encoded" property to true (and we would have returned early, - * up above). No devastating error, but that code should be fixed. - * (It could indicate that the resulting encoded bytes are wrong.) - */ - PORT_Assert (!encoded); - } else { - /* - * We are decoding; record whether the resulting value is - * still encoded or not. - */ - attribute->encoded = encoded; - } - return theTemplate; -} - -static const SecAsn1TemplateChooserPtr cms_attr_chooser - = cms_attr_choose_attr_value_template; - -const SecAsn1Template nss_cms_attribute_template[] = { - { SEC_ASN1_SEQUENCE, - 0, NULL, sizeof(SecCmsAttribute) }, - { SEC_ASN1_OBJECT_ID, - offsetof(SecCmsAttribute,type) }, - { SEC_ASN1_DYNAMIC | SEC_ASN1_SET_OF, - offsetof(SecCmsAttribute,values), - &cms_attr_chooser }, - { 0 } -}; - -const SecAsn1Template nss_cms_set_of_attribute_template[] = { - { SEC_ASN1_SET_OF, 0, nss_cms_attribute_template } -}; - -/* ============================================================================= - * Attribute Array methods - */ - -/* - * SecCmsAttributeArrayEncode - encode an Attribute array as SET OF Attributes - * - * If you are wondering why this routine does not reorder the attributes - * first, and might be tempted to make it do so, see the comment by the - * call to ReorderAttributes in cmsencode.c. (Or, see who else calls this - * and think long and hard about the implications of making it always - * do the reordering.) - */ -CSSM_DATA_PTR -SecCmsAttributeArrayEncode(PRArenaPool *poolp, SecCmsAttribute ***attrs, CSSM_DATA_PTR dest) -{ - return SEC_ASN1EncodeItem (poolp, dest, (void *)attrs, nss_cms_set_of_attribute_template); -} - -/* - * SecCmsAttributeArrayReorder - sort attribute array by attribute's DER encoding - * - * make sure that the order of the attributes guarantees valid DER (which must be - * in lexigraphically ascending order for a SET OF); if reordering is necessary it - * will be done in place (in attrs). - */ -OSStatus -SecCmsAttributeArrayReorder(SecCmsAttribute **attrs) -{ - return SecCmsArraySortByDER((void **)attrs, nss_cms_attribute_template, NULL); -} - -/* - * SecCmsAttributeArrayFindAttrByOidTag - look through a set of attributes and - * find one that matches the specified object ID. - * - * If "only" is true, then make sure that there is not more than one attribute - * of the same type. Otherwise, just return the first one found. (XXX Does - * anybody really want that first-found behavior? It was like that when I found it...) - */ -SecCmsAttribute * -SecCmsAttributeArrayFindAttrByOidTag(SecCmsAttribute **attrs, SECOidTag oidtag, Boolean only) -{ - SECOidData *oid; - SecCmsAttribute *attr1, *attr2; - - if (attrs == NULL) - return NULL; - - oid = SECOID_FindOIDByTag(oidtag); - if (oid == NULL) - return NULL; - - while ((attr1 = *attrs++) != NULL) { - if (attr1->type.Length == oid->oid.Length && PORT_Memcmp (attr1->type.Data, - oid->oid.Data, - oid->oid.Length) == 0) - break; - } - - if (attr1 == NULL) - return NULL; - - if (!only) - return attr1; - - while ((attr2 = *attrs++) != NULL) { - if (attr2->type.Length == oid->oid.Length && PORT_Memcmp (attr2->type.Data, - oid->oid.Data, - oid->oid.Length) == 0) - break; - } - - if (attr2 != NULL) - return NULL; - - return attr1; -} - -/* - * SecCmsAttributeArrayAddAttr - add an attribute to an - * array of attributes. - */ -OSStatus -SecCmsAttributeArrayAddAttr(PLArenaPool *poolp, SecCmsAttribute ***attrs, SecCmsAttribute *attr) -{ - SecCmsAttribute *oattr; - void *mark; - SECOidTag type; - - mark = PORT_ArenaMark(poolp); - - /* find oidtag of attr */ - type = SecCmsAttributeGetType(attr); - - /* see if we have one already */ - oattr = SecCmsAttributeArrayFindAttrByOidTag(*attrs, type, PR_FALSE); - PORT_Assert (oattr == NULL); - if (oattr != NULL) - goto loser; /* XXX or would it be better to replace it? */ - - /* no, shove it in */ - if (SecCmsArrayAdd(poolp, (void ***)attrs, (void *)attr) != SECSuccess) - goto loser; - - PORT_ArenaUnmark(poolp, mark); - return SECSuccess; - -loser: - PORT_ArenaRelease(poolp, mark); - return SECFailure; -} - -/* - * SecCmsAttributeArraySetAttr - set an attribute's value in a set of attributes - */ -OSStatus -SecCmsAttributeArraySetAttr(PLArenaPool *poolp, SecCmsAttribute ***attrs, SECOidTag type, CSSM_DATA_PTR value, Boolean encoded) -{ - SecCmsAttribute *attr; - void *mark; - - mark = PORT_ArenaMark(poolp); - - /* see if we have one already */ - attr = SecCmsAttributeArrayFindAttrByOidTag(*attrs, type, PR_FALSE); - if (attr == NULL) { - /* not found? create one! */ - attr = SecCmsAttributeCreate(poolp, type, value, encoded); - if (attr == NULL) - goto loser; - /* and add it to the list */ - if (SecCmsArrayAdd(poolp, (void ***)attrs, (void *)attr) != SECSuccess) - goto loser; - } else { - /* found, shove it in */ - /* XXX we need a decent memory model @#$#$!#!!! */ - attr->values[0] = value; - attr->encoded = encoded; - } - - PORT_ArenaUnmark (poolp, mark); - return SECSuccess; - -loser: - PORT_ArenaRelease (poolp, mark); - return SECFailure; -} -