diff options
Diffstat (limited to 'security/nss/lib/smime/cmscinfo.c')
| -rw-r--r-- | security/nss/lib/smime/cmscinfo.c | 327 |
1 files changed, 327 insertions, 0 deletions
diff --git a/security/nss/lib/smime/cmscinfo.c b/security/nss/lib/smime/cmscinfo.c new file mode 100644 index 000000000..9e4a2dc5e --- /dev/null +++ b/security/nss/lib/smime/cmscinfo.c @@ -0,0 +1,327 @@ +/* + * 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 contentInfo methods. + * + * $Id$ + */ + +#include "cmslocal.h" + +#include "pk11func.h" +#include "secitem.h" +#include "secoid.h" +#include "secerr.h" + +/* + * NSS_CMSContentInfo_Create - create a content info + * + * version is set in the _Finalize procedures for each content type + */ + +/* + * NSS_CMSContentInfo_Destroy - destroy a CMS contentInfo and all of its sub-pieces. + */ +void +NSS_CMSContentInfo_Destroy(NSSCMSContentInfo *cinfo) +{ + SECOidTag kind; + + kind = NSS_CMSContentInfo_GetContentTypeTag(cinfo); + switch (kind) { + case SEC_OID_PKCS7_ENVELOPED_DATA: + NSS_CMSEnvelopedData_Destroy(cinfo->content.envelopedData); + break; + case SEC_OID_PKCS7_SIGNED_DATA: + NSS_CMSSignedData_Destroy(cinfo->content.signedData); + break; + case SEC_OID_PKCS7_ENCRYPTED_DATA: + NSS_CMSEncryptedData_Destroy(cinfo->content.encryptedData); + break; + case SEC_OID_PKCS7_DIGESTED_DATA: + NSS_CMSDigestedData_Destroy(cinfo->content.digestedData); + break; + default: + /* XXX Anything else that needs to be "manually" freed/destroyed? */ + break; + } + if (cinfo->bulkkey) + PK11_FreeSymKey(cinfo->bulkkey); + + /* we live in a pool, so no need to worry about storage */ +} + +/* + * NSS_CMSContentInfo_GetChildContentInfo - get content's contentInfo (if it exists) + */ +NSSCMSContentInfo * +NSS_CMSContentInfo_GetChildContentInfo(NSSCMSContentInfo *cinfo) +{ + switch (NSS_CMSContentInfo_GetContentTypeTag(cinfo)) { + case SEC_OID_PKCS7_DATA: + return NULL; + case SEC_OID_PKCS7_SIGNED_DATA: + return &(cinfo->content.signedData->contentInfo); + case SEC_OID_PKCS7_ENVELOPED_DATA: + return &(cinfo->content.envelopedData->contentInfo); + case SEC_OID_PKCS7_DIGESTED_DATA: + return &(cinfo->content.digestedData->contentInfo); + case SEC_OID_PKCS7_ENCRYPTED_DATA: + return &(cinfo->content.encryptedData->contentInfo); + default: + return NULL; + } +} + +/* + * NSS_CMSContentInfo_SetContent - set content type & content + */ +SECStatus +NSS_CMSContentInfo_SetContent(NSSCMSMessage *cmsg, NSSCMSContentInfo *cinfo, SECOidTag type, void *ptr) +{ + SECStatus rv; + + cinfo->contentTypeTag = SECOID_FindOIDByTag(type); + if (cinfo->contentTypeTag == NULL) + return SECFailure; + + /* do not copy the oid, just create a reference */ + rv = SECITEM_CopyItem (cmsg->poolp, &(cinfo->contentType), &(cinfo->contentTypeTag->oid)); + if (rv != SECSuccess) + return SECFailure; + + cinfo->content.pointer = ptr; + + if (type != SEC_OID_PKCS7_DATA) { + /* as we always have some inner data, + * we need to set it to something, just to fool the encoder enough to work on it + * and get us into nss_cms_encoder_notify at that point */ + cinfo->rawContent = SECITEM_AllocItem(cmsg->poolp, NULL, 1); + if (cinfo->rawContent == NULL) { + PORT_SetError(SEC_ERROR_NO_MEMORY); + return SECFailure; + } + } + + return SECSuccess; +} + +/* + * NSS_CMSContentInfo_SetContent_XXXX - typesafe wrappers for NSS_CMSContentInfo_SetContent + */ + +/* + * data == NULL -> pass in data via NSS_CMSEncoder_Update + * data != NULL -> take this data + */ +SECStatus +NSS_CMSContentInfo_SetContent_Data(NSSCMSMessage *cmsg, NSSCMSContentInfo *cinfo, SECItem *data, PRBool detached) +{ + if (NSS_CMSContentInfo_SetContent(cmsg, cinfo, SEC_OID_PKCS7_DATA, (void *)data) != SECSuccess) + return SECFailure; + cinfo->rawContent = (detached) ? + NULL : (data) ? + data : SECITEM_AllocItem(cmsg->poolp, NULL, 1); + return SECSuccess; +} + +SECStatus +NSS_CMSContentInfo_SetContent_SignedData(NSSCMSMessage *cmsg, NSSCMSContentInfo *cinfo, NSSCMSSignedData *sigd) +{ + return NSS_CMSContentInfo_SetContent(cmsg, cinfo, SEC_OID_PKCS7_SIGNED_DATA, (void *)sigd); +} + +SECStatus +NSS_CMSContentInfo_SetContent_EnvelopedData(NSSCMSMessage *cmsg, NSSCMSContentInfo *cinfo, NSSCMSEnvelopedData *envd) +{ + return NSS_CMSContentInfo_SetContent(cmsg, cinfo, SEC_OID_PKCS7_ENVELOPED_DATA, (void *)envd); +} + +SECStatus +NSS_CMSContentInfo_SetContent_DigestedData(NSSCMSMessage *cmsg, NSSCMSContentInfo *cinfo, NSSCMSDigestedData *digd) +{ + return NSS_CMSContentInfo_SetContent(cmsg, cinfo, SEC_OID_PKCS7_DIGESTED_DATA, (void *)digd); +} + +SECStatus +NSS_CMSContentInfo_SetContent_EncryptedData(NSSCMSMessage *cmsg, NSSCMSContentInfo *cinfo, NSSCMSEncryptedData *encd) +{ + return NSS_CMSContentInfo_SetContent(cmsg, cinfo, SEC_OID_PKCS7_ENCRYPTED_DATA, (void *)encd); +} + +/* + * NSS_CMSContentInfo_GetContent - get pointer to inner content + * + * needs to be casted... + */ +void * +NSS_CMSContentInfo_GetContent(NSSCMSContentInfo *cinfo) +{ + switch (cinfo->contentTypeTag->offset) { + case SEC_OID_PKCS7_DATA: + case SEC_OID_PKCS7_SIGNED_DATA: + case SEC_OID_PKCS7_ENVELOPED_DATA: + case SEC_OID_PKCS7_DIGESTED_DATA: + case SEC_OID_PKCS7_ENCRYPTED_DATA: + return cinfo->content.pointer; + default: + return NULL; + } +} + +/* + * NSS_CMSContentInfo_GetInnerContent - get pointer to innermost content + * + * this is typically only called by NSS_CMSMessage_GetContent() + */ +SECItem * +NSS_CMSContentInfo_GetInnerContent(NSSCMSContentInfo *cinfo) +{ + NSSCMSContentInfo *ccinfo; + + switch (NSS_CMSContentInfo_GetContentTypeTag(cinfo)) { + case SEC_OID_PKCS7_DATA: + return cinfo->content.data; /* end of recursion - every message has to have a data cinfo */ + case SEC_OID_PKCS7_DIGESTED_DATA: + case SEC_OID_PKCS7_ENCRYPTED_DATA: + case SEC_OID_PKCS7_ENVELOPED_DATA: + case SEC_OID_PKCS7_SIGNED_DATA: + if ((ccinfo = NSS_CMSContentInfo_GetChildContentInfo(cinfo)) == NULL) + break; + return NSS_CMSContentInfo_GetContent(ccinfo); + default: + PORT_Assert(0); + break; + } + return NULL; +} + +/* + * NSS_CMSContentInfo_GetContentType{Tag,OID} - find out (saving pointer to lookup result + * for future reference) and return the inner content type. + */ +SECOidTag +NSS_CMSContentInfo_GetContentTypeTag(NSSCMSContentInfo *cinfo) +{ + if (cinfo->contentTypeTag == NULL) + cinfo->contentTypeTag = SECOID_FindOID(&(cinfo->contentType)); + + if (cinfo->contentTypeTag == NULL) + return SEC_OID_UNKNOWN; + + return cinfo->contentTypeTag->offset; +} + +SECItem * +NSS_CMSContentInfo_GetContentTypeOID(NSSCMSContentInfo *cinfo) +{ + if (cinfo->contentTypeTag == NULL) + cinfo->contentTypeTag = SECOID_FindOID(&(cinfo->contentType)); + + if (cinfo->contentTypeTag == NULL) + return NULL; + + return &(cinfo->contentTypeTag->oid); +} + +/* + * NSS_CMSContentInfo_GetContentEncAlgTag - find out (saving pointer to lookup result + * for future reference) and return the content encryption algorithm tag. + */ +SECOidTag +NSS_CMSContentInfo_GetContentEncAlgTag(NSSCMSContentInfo *cinfo) +{ + if (cinfo->contentEncAlgTag == SEC_OID_UNKNOWN) + cinfo->contentEncAlgTag = SECOID_GetAlgorithmTag(&(cinfo->contentEncAlg)); + + return cinfo->contentEncAlgTag; +} + +/* + * NSS_CMSContentInfo_GetContentEncAlg - find out and return the content encryption algorithm tag. + */ +SECAlgorithmID * +NSS_CMSContentInfo_GetContentEncAlg(NSSCMSContentInfo *cinfo) +{ + return &(cinfo->contentEncAlg); +} + +SECStatus +NSS_CMSContentInfo_SetContentEncAlg(PLArenaPool *poolp, NSSCMSContentInfo *cinfo, + SECOidTag bulkalgtag, SECItem *parameters, int keysize) +{ + SECStatus rv; + + rv = SECOID_SetAlgorithmID(poolp, &(cinfo->contentEncAlg), bulkalgtag, parameters); + if (rv != SECSuccess) + return SECFailure; + cinfo->keysize = keysize; + return SECSuccess; +} + +SECStatus +NSS_CMSContentInfo_SetContentEncAlgID(PLArenaPool *poolp, NSSCMSContentInfo *cinfo, + SECAlgorithmID *algid, int keysize) +{ + SECStatus rv; + + rv = SECOID_CopyAlgorithmID(poolp, &(cinfo->contentEncAlg), algid); + if (rv != SECSuccess) + return SECFailure; + if (keysize >= 0) + cinfo->keysize = keysize; + return SECSuccess; +} + +void +NSS_CMSContentInfo_SetBulkKey(NSSCMSContentInfo *cinfo, PK11SymKey *bulkkey) +{ + cinfo->bulkkey = PK11_ReferenceSymKey(bulkkey); + cinfo->keysize = PK11_GetKeyStrength(cinfo->bulkkey, &(cinfo->contentEncAlg)); +} + +PK11SymKey * +NSS_CMSContentInfo_GetBulkKey(NSSCMSContentInfo *cinfo) +{ + if (cinfo->bulkkey == NULL) + return NULL; + + return PK11_ReferenceSymKey(cinfo->bulkkey); +} + +int +NSS_CMSContentInfo_GetBulkKeySize(NSSCMSContentInfo *cinfo) +{ + return cinfo->keysize; +} |