diff options
Diffstat (limited to 'security/nss/lib/smime/cmsmessage.c')
| -rw-r--r-- | security/nss/lib/smime/cmsmessage.c | 321 |
1 files changed, 0 insertions, 321 deletions
diff --git a/security/nss/lib/smime/cmsmessage.c b/security/nss/lib/smime/cmsmessage.c deleted file mode 100644 index 1b3d69c74..000000000 --- a/security/nss/lib/smime/cmsmessage.c +++ /dev/null @@ -1,321 +0,0 @@ -/* ***** BEGIN LICENSE BLOCK ***** - * Version: MPL 1.1/GPL 2.0/LGPL 2.1 - * - * 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 the Initial Developer are Copyright (C) 1994-2000 - * the Initial Developer. All Rights Reserved. - * - * Contributor(s): - * - * Alternatively, the contents of this file may be used under the terms of - * either the GNU General Public License Version 2 or later (the "GPL"), or - * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), - * in which case the provisions of the GPL or the LGPL are applicable instead - * of those above. If you wish to allow use of your version of this file only - * under the terms of either the GPL or the LGPL, and not to allow others to - * use your version of this file under the terms of the MPL, indicate your - * decision by deleting the provisions above and replace them with the notice - * and other provisions required by the GPL or the LGPL. If you do not delete - * the provisions above, a recipient may use your version of this file under - * the terms of any one of the MPL, the GPL or the LGPL. - * - * ***** END LICENSE BLOCK ***** */ - -/* - * CMS message methods. - * - * $Id$ - */ - -#include "cmslocal.h" - -#include "cert.h" -#include "secasn1.h" -#include "secitem.h" -#include "secoid.h" -#include "pk11func.h" -#include "secerr.h" - -/* - * NSS_CMSMessage_Create - create a CMS message object - * - * "poolp" - arena to allocate memory from, or NULL if new arena should be created - */ -NSSCMSMessage * -NSS_CMSMessage_Create(PLArenaPool *poolp) -{ - void *mark = NULL; - NSSCMSMessage *cmsg; - PRBool poolp_is_ours = PR_FALSE; - - if (poolp == NULL) { - poolp = PORT_NewArena (1024); /* XXX what is right value? */ - if (poolp == NULL) - return NULL; - poolp_is_ours = PR_TRUE; - } - - if (!poolp_is_ours) - mark = PORT_ArenaMark(poolp); - - cmsg = (NSSCMSMessage *)PORT_ArenaZAlloc (poolp, sizeof(NSSCMSMessage)); - if (cmsg == NULL) { - if (!poolp_is_ours) { - if (mark) { - PORT_ArenaRelease(poolp, mark); - } - } else - PORT_FreeArena(poolp, PR_FALSE); - return NULL; - } - - cmsg->poolp = poolp; - cmsg->poolp_is_ours = poolp_is_ours; - cmsg->refCount = 1; - - if (mark) - PORT_ArenaUnmark(poolp, mark); - - return cmsg; -} - -/* - * NSS_CMSMessage_SetEncodingParams - set up a CMS message object for encoding or decoding - * - * "cmsg" - message object - * "pwfn", pwfn_arg" - callback function for getting token password - * "decrypt_key_cb", "decrypt_key_cb_arg" - callback function for getting bulk key for encryptedData - * "detached_digestalgs", "detached_digests" - digests from detached content - */ -void -NSS_CMSMessage_SetEncodingParams(NSSCMSMessage *cmsg, - PK11PasswordFunc pwfn, void *pwfn_arg, - NSSCMSGetDecryptKeyCallback decrypt_key_cb, void *decrypt_key_cb_arg, - SECAlgorithmID **detached_digestalgs, SECItem **detached_digests) -{ - if (pwfn) - PK11_SetPasswordFunc(pwfn); - cmsg->pwfn_arg = pwfn_arg; - cmsg->decrypt_key_cb = decrypt_key_cb; - cmsg->decrypt_key_cb_arg = decrypt_key_cb_arg; - cmsg->detached_digestalgs = detached_digestalgs; - cmsg->detached_digests = detached_digests; -} - -/* - * NSS_CMSMessage_Destroy - destroy a CMS message and all of its sub-pieces. - */ -void -NSS_CMSMessage_Destroy(NSSCMSMessage *cmsg) -{ - PORT_Assert (cmsg->refCount > 0); - if (cmsg->refCount <= 0) /* oops */ - return; - - cmsg->refCount--; /* thread safety? */ - if (cmsg->refCount > 0) - return; - - NSS_CMSContentInfo_Destroy(&(cmsg->contentInfo)); - - /* if poolp is not NULL, cmsg is the owner of its arena */ - if (cmsg->poolp_is_ours) - PORT_FreeArena (cmsg->poolp, PR_FALSE); /* XXX clear it? */ -} - -/* - * NSS_CMSMessage_Copy - return a copy of the given message. - * - * The copy may be virtual or may be real -- either way, the result needs - * to be passed to NSS_CMSMessage_Destroy later (as does the original). - */ -NSSCMSMessage * -NSS_CMSMessage_Copy(NSSCMSMessage *cmsg) -{ - if (cmsg == NULL) - return NULL; - - PORT_Assert (cmsg->refCount > 0); - - cmsg->refCount++; /* XXX chrisk thread safety? */ - return cmsg; -} - -/* - * NSS_CMSMessage_GetArena - return a pointer to the message's arena pool - */ -PLArenaPool * -NSS_CMSMessage_GetArena(NSSCMSMessage *cmsg) -{ - return cmsg->poolp; -} - -/* - * NSS_CMSMessage_GetContentInfo - return a pointer to the top level contentInfo - */ -NSSCMSContentInfo * -NSS_CMSMessage_GetContentInfo(NSSCMSMessage *cmsg) -{ - return &(cmsg->contentInfo); -} - -/* - * Return a pointer to the actual content. - * In the case of those types which are encrypted, this returns the *plain* content. - * In case of nested contentInfos, this descends and retrieves the innermost content. - */ -SECItem * -NSS_CMSMessage_GetContent(NSSCMSMessage *cmsg) -{ - /* this is a shortcut */ - NSSCMSContentInfo * cinfo = NSS_CMSMessage_GetContentInfo(cmsg); - SECItem * pItem = NSS_CMSContentInfo_GetInnerContent(cinfo); - return pItem; -} - -/* - * NSS_CMSMessage_ContentLevelCount - count number of levels of CMS content objects in this message - * - * CMS data content objects do not count. - */ -int -NSS_CMSMessage_ContentLevelCount(NSSCMSMessage *cmsg) -{ - int count = 0; - NSSCMSContentInfo *cinfo; - - /* walk down the chain of contentinfos */ - for (cinfo = &(cmsg->contentInfo); cinfo != NULL; ) { - count++; - cinfo = NSS_CMSContentInfo_GetChildContentInfo(cinfo); - } - return count; -} - -/* - * NSS_CMSMessage_ContentLevel - find content level #n - * - * CMS data content objects do not count. - */ -NSSCMSContentInfo * -NSS_CMSMessage_ContentLevel(NSSCMSMessage *cmsg, int n) -{ - int count = 0; - NSSCMSContentInfo *cinfo; - - /* walk down the chain of contentinfos */ - for (cinfo = &(cmsg->contentInfo); cinfo != NULL && count < n; cinfo = NSS_CMSContentInfo_GetChildContentInfo(cinfo)) { - count++; - } - - return cinfo; -} - -/* - * NSS_CMSMessage_ContainsCertsOrCrls - see if message contains certs along the way - */ -PRBool -NSS_CMSMessage_ContainsCertsOrCrls(NSSCMSMessage *cmsg) -{ - NSSCMSContentInfo *cinfo; - - /* descend into CMS message */ - for (cinfo = &(cmsg->contentInfo); cinfo != NULL; cinfo = NSS_CMSContentInfo_GetChildContentInfo(cinfo)) { - if (NSS_CMSContentInfo_GetContentTypeTag(cinfo) != SEC_OID_PKCS7_SIGNED_DATA) - continue; /* next level */ - - if (NSS_CMSSignedData_ContainsCertsOrCrls(cinfo->content.signedData)) - return PR_TRUE; - } - return PR_FALSE; -} - -/* - * NSS_CMSMessage_IsEncrypted - see if message contains a encrypted submessage - */ -PRBool -NSS_CMSMessage_IsEncrypted(NSSCMSMessage *cmsg) -{ - NSSCMSContentInfo *cinfo; - - /* walk down the chain of contentinfos */ - for (cinfo = &(cmsg->contentInfo); cinfo != NULL; cinfo = NSS_CMSContentInfo_GetChildContentInfo(cinfo)) - { - switch (NSS_CMSContentInfo_GetContentTypeTag(cinfo)) { - case SEC_OID_PKCS7_ENVELOPED_DATA: - case SEC_OID_PKCS7_ENCRYPTED_DATA: - return PR_TRUE; - default: - break; - } - } - return PR_FALSE; -} - -/* - * NSS_CMSMessage_IsSigned - see if message contains a signed submessage - * - * If the CMS message has a SignedData with a signature (not just a SignedData) - * return true; false otherwise. This can/should be called before calling - * VerifySignature, which will always indicate failure if no signature is - * present, but that does not mean there even was a signature! - * Note that the content itself can be empty (detached content was sent - * another way); it is the presence of the signature that matters. - */ -PRBool -NSS_CMSMessage_IsSigned(NSSCMSMessage *cmsg) -{ - NSSCMSContentInfo *cinfo; - - /* walk down the chain of contentinfos */ - for (cinfo = &(cmsg->contentInfo); cinfo != NULL; cinfo = NSS_CMSContentInfo_GetChildContentInfo(cinfo)) - { - switch (NSS_CMSContentInfo_GetContentTypeTag(cinfo)) { - case SEC_OID_PKCS7_SIGNED_DATA: - if (!NSS_CMSArray_IsEmpty((void **)cinfo->content.signedData->signerInfos)) - return PR_TRUE; - break; - default: - break; - } - } - return PR_FALSE; -} - -/* - * NSS_CMSMessage_IsContentEmpty - see if content is empty - * - * returns PR_TRUE is innermost content length is < minLen - * XXX need the encrypted content length (why?) - */ -PRBool -NSS_CMSMessage_IsContentEmpty(NSSCMSMessage *cmsg, unsigned int minLen) -{ - SECItem *item = NULL; - - if (cmsg == NULL) - return PR_TRUE; - - item = NSS_CMSContentInfo_GetContent(NSS_CMSMessage_GetContentInfo(cmsg)); - - if (!item) { - return PR_TRUE; - } else if(item->len <= minLen) { - return PR_TRUE; - } - - return PR_FALSE; -} |