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-rw-r--r--security/nss/lib/smime/cmscinfo.c443
1 files changed, 443 insertions, 0 deletions
diff --git a/security/nss/lib/smime/cmscinfo.c b/security/nss/lib/smime/cmscinfo.c
new file mode 100644
index 0000000000..453ccaadaa
--- /dev/null
+++ b/security/nss/lib/smime/cmscinfo.c
@@ -0,0 +1,443 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+/*
+ * CMS contentInfo methods.
+ */
+
+#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
+ */
+SECStatus
+NSS_CMSContentInfo_Private_Init(NSSCMSContentInfo *cinfo)
+{
+ if (cinfo->privateInfo) {
+ return SECSuccess;
+ }
+ cinfo->privateInfo = PORT_ZNew(NSSCMSContentInfoPrivate);
+ return (cinfo->privateInfo) ? SECSuccess : SECFailure;
+}
+
+static void
+nss_cmsContentInfo_private_destroy(NSSCMSContentInfoPrivate *privateInfo)
+{
+ if (privateInfo->digcx) {
+ /* must destroy digest objects */
+ NSS_CMSDigestContext_Cancel(privateInfo->digcx);
+ privateInfo->digcx = NULL;
+ }
+ if (privateInfo->ciphcx) {
+ NSS_CMSCipherContext_Destroy(privateInfo->ciphcx);
+ privateInfo->ciphcx = NULL;
+ }
+ PORT_Free(privateInfo);
+}
+
+/*
+ * NSS_CMSContentInfo_Destroy - destroy a CMS contentInfo and all of its sub-pieces.
+ */
+void
+NSS_CMSContentInfo_Destroy(NSSCMSContentInfo *cinfo)
+{
+ SECOidTag kind;
+
+ if (cinfo == NULL) {
+ return;
+ }
+
+ 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:
+ NSS_CMSGenericWrapperData_Destroy(kind, cinfo->content.genericData);
+ /* XXX Anything else that needs to be "manually" freed/destroyed? */
+ break;
+ }
+ if (cinfo->privateInfo) {
+ nss_cmsContentInfo_private_destroy(cinfo->privateInfo);
+ cinfo->privateInfo = NULL;
+ }
+ if (cinfo->bulkkey) {
+ PK11_FreeSymKey(cinfo->bulkkey);
+ }
+}
+
+/*
+ * NSS_CMSContentInfo_GetChildContentInfo - get content's contentInfo (if it exists)
+ */
+NSSCMSContentInfo *
+NSS_CMSContentInfo_GetChildContentInfo(NSSCMSContentInfo *cinfo)
+{
+ NSSCMSContentInfo *ccinfo = NULL;
+
+ if (cinfo == NULL) {
+ return NULL;
+ }
+
+ SECOidTag tag = NSS_CMSContentInfo_GetContentTypeTag(cinfo);
+ switch (tag) {
+ case SEC_OID_PKCS7_SIGNED_DATA:
+ if (cinfo->content.signedData != NULL) {
+ ccinfo = &(cinfo->content.signedData->contentInfo);
+ }
+ break;
+ case SEC_OID_PKCS7_ENVELOPED_DATA:
+ if (cinfo->content.envelopedData != NULL) {
+ ccinfo = &(cinfo->content.envelopedData->contentInfo);
+ }
+ break;
+ case SEC_OID_PKCS7_DIGESTED_DATA:
+ if (cinfo->content.digestedData != NULL) {
+ ccinfo = &(cinfo->content.digestedData->contentInfo);
+ }
+ break;
+ case SEC_OID_PKCS7_ENCRYPTED_DATA:
+ if (cinfo->content.encryptedData != NULL) {
+ ccinfo = &(cinfo->content.encryptedData->contentInfo);
+ }
+ break;
+ case SEC_OID_PKCS7_DATA:
+ default:
+ if (NSS_CMSType_IsWrapper(tag)) {
+ if (cinfo->content.genericData != NULL) {
+ ccinfo = &(cinfo->content.genericData->contentInfo);
+ }
+ }
+ break;
+ }
+ if (ccinfo && !ccinfo->privateInfo) {
+ NSS_CMSContentInfo_Private_Init(ccinfo);
+ }
+ return ccinfo;
+}
+
+SECStatus
+NSS_CMSContentInfo_SetDontStream(NSSCMSContentInfo *cinfo, PRBool dontStream)
+{
+ SECStatus rv;
+ if (cinfo == NULL) {
+ return SECFailure;
+ }
+
+ rv = NSS_CMSContentInfo_Private_Init(cinfo);
+ if (rv != SECSuccess) {
+ /* default is streaming, failure to get ccinfo will not effect this */
+ return dontStream ? SECFailure : SECSuccess;
+ }
+ cinfo->privateInfo->dontStream = dontStream;
+ return SECSuccess;
+}
+
+/*
+ * NSS_CMSContentInfo_SetContent - set content type & content
+ */
+SECStatus
+NSS_CMSContentInfo_SetContent(NSSCMSMessage *cmsg, NSSCMSContentInfo *cinfo,
+ SECOidTag type, void *ptr)
+{
+ SECStatus rv;
+ if (cinfo == NULL || cmsg == NULL) {
+ return SECFailure;
+ }
+
+ 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 (NSS_CMSType_IsData(type) && ptr) {
+ cinfo->rawContent = ptr;
+ } else {
+ /* 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;
+ }
+ if (detached) {
+ cinfo->rawContent = NULL;
+ }
+
+ 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)
+{
+ if (cinfo == NULL) {
+ return NULL;
+ }
+
+ SECOidTag tag = cinfo->contentTypeTag
+ ? cinfo->contentTypeTag->offset
+ : SEC_OID_UNKNOWN;
+ switch (tag) {
+ 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 NSS_CMSType_IsWrapper(tag) ? cinfo->content.pointer
+ : (NSS_CMSType_IsData(tag) ? cinfo->rawContent
+ : 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;
+ SECOidTag tag;
+ SECItem *pItem = NULL;
+
+ if (cinfo == NULL) {
+ return NULL;
+ }
+
+ tag = NSS_CMSContentInfo_GetContentTypeTag(cinfo);
+ if (NSS_CMSType_IsData(tag)) {
+ pItem = cinfo->content.data;
+ } else if (NSS_CMSType_IsWrapper(tag)) {
+ ccinfo = NSS_CMSContentInfo_GetChildContentInfo(cinfo);
+ if (ccinfo != NULL) {
+ pItem = NSS_CMSContentInfo_GetContent(ccinfo);
+ }
+ } else {
+ PORT_Assert(0);
+ }
+
+ return pItem;
+}
+
+/*
+ * 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 == NULL) {
+ return SEC_OID_UNKNOWN;
+ }
+
+ 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 == NULL) {
+ return NULL;
+ }
+
+ 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 == NULL) {
+ return SEC_OID_UNKNOWN;
+ }
+
+ 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)
+{
+ if (cinfo == NULL) {
+ return NULL;
+ }
+
+ return &(cinfo->contentEncAlg);
+}
+
+SECStatus
+NSS_CMSContentInfo_SetContentEncAlg(PLArenaPool *poolp, NSSCMSContentInfo *cinfo,
+ SECOidTag bulkalgtag, SECItem *parameters, int keysize)
+{
+ SECStatus rv;
+ if (cinfo == NULL) {
+ return SECFailure;
+ }
+
+ 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;
+ if (cinfo == NULL) {
+ return SECFailure;
+ }
+
+ 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)
+{
+ if (cinfo == NULL) {
+ return;
+ }
+
+ if (bulkkey == NULL) {
+ cinfo->bulkkey = NULL;
+ cinfo->keysize = 0;
+ } else {
+ cinfo->bulkkey = PK11_ReferenceSymKey(bulkkey);
+ cinfo->keysize = PK11_GetKeyStrength(cinfo->bulkkey, &(cinfo->contentEncAlg));
+ }
+}
+
+PK11SymKey *
+NSS_CMSContentInfo_GetBulkKey(NSSCMSContentInfo *cinfo)
+{
+ if (cinfo == NULL || cinfo->bulkkey == NULL) {
+ return NULL;
+ }
+
+ return PK11_ReferenceSymKey(cinfo->bulkkey);
+}
+
+int
+NSS_CMSContentInfo_GetBulkKeySize(NSSCMSContentInfo *cinfo)
+{
+ if (cinfo == NULL) {
+ return 0;
+ }
+
+ return cinfo->keysize;
+}