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/* 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 recipient list functions
*/
#include "cmslocal.h"
#include "cert.h"
#include "keyhi.h"
#include "secasn1.h"
#include "secitem.h"
#include "secoid.h"
#include "pk11func.h"
#include "prtime.h"
#include "secerr.h"
static int
nss_cms_recipients_traverse(NSSCMSRecipientInfo **recipientinfos,
NSSCMSRecipient **recipient_list)
{
int count = 0;
int rlindex = 0;
int i, j;
NSSCMSRecipient *rle;
NSSCMSRecipientInfo *ri;
NSSCMSRecipientEncryptedKey *rek;
for (i = 0; recipientinfos[i] != NULL; i++) {
ri = recipientinfos[i];
switch (ri->recipientInfoType) {
case NSSCMSRecipientInfoID_KeyTrans:
if (recipient_list) {
NSSCMSRecipientIdentifier *recipId =
&ri->ri.keyTransRecipientInfo.recipientIdentifier;
if (recipId->identifierType != NSSCMSRecipientID_IssuerSN &&
recipId->identifierType != NSSCMSRecipientID_SubjectKeyID) {
PORT_SetError(SEC_ERROR_INVALID_ARGS);
return -1;
}
/* alloc one & fill it out */
rle = (NSSCMSRecipient *)PORT_ZAlloc(sizeof(NSSCMSRecipient));
if (!rle)
return -1;
rle->riIndex = i;
rle->subIndex = -1;
switch (recipId->identifierType) {
case NSSCMSRecipientID_IssuerSN:
rle->kind = RLIssuerSN;
rle->id.issuerAndSN = recipId->id.issuerAndSN;
break;
case NSSCMSRecipientID_SubjectKeyID:
rle->kind = RLSubjKeyID;
rle->id.subjectKeyID = recipId->id.subjectKeyID;
break;
default: /* we never get here because of identifierType check
we done before. Leaving it to kill compiler warning */
break;
}
recipient_list[rlindex++] = rle;
} else {
count++;
}
break;
case NSSCMSRecipientInfoID_KeyAgree:
if (ri->ri.keyAgreeRecipientInfo.recipientEncryptedKeys == NULL)
break;
for (j = 0; ri->ri.keyAgreeRecipientInfo.recipientEncryptedKeys[j] != NULL; j++) {
if (recipient_list) {
rek = ri->ri.keyAgreeRecipientInfo.recipientEncryptedKeys[j];
/* alloc one & fill it out */
rle = (NSSCMSRecipient *)PORT_ZAlloc(sizeof(NSSCMSRecipient));
if (!rle)
return -1;
rle->riIndex = i;
rle->subIndex = j;
switch (rek->recipientIdentifier.identifierType) {
case NSSCMSKeyAgreeRecipientID_IssuerSN:
rle->kind = RLIssuerSN;
rle->id.issuerAndSN = rek->recipientIdentifier.id.issuerAndSN;
break;
case NSSCMSKeyAgreeRecipientID_RKeyID:
rle->kind = RLSubjKeyID;
rle->id.subjectKeyID =
rek->recipientIdentifier.id.recipientKeyIdentifier.subjectKeyIdentifier;
break;
}
recipient_list[rlindex++] = rle;
} else {
count++;
}
}
break;
case NSSCMSRecipientInfoID_KEK:
/* KEK is not implemented */
break;
}
}
/* if we have a recipient list, we return on success (-1, above, on failure) */
/* otherwise, we return the count. */
if (recipient_list) {
recipient_list[rlindex] = NULL;
return 0;
} else {
return count;
}
}
NSSCMSRecipient **
nss_cms_recipient_list_create(NSSCMSRecipientInfo **recipientinfos)
{
int count, rv;
NSSCMSRecipient **recipient_list;
/* count the number of recipient identifiers */
count = nss_cms_recipients_traverse(recipientinfos, NULL);
if (count <= 0) {
/* no recipients? */
PORT_SetError(SEC_ERROR_BAD_DATA);
#if 0
PORT_SetErrorString("Cannot find recipient data in envelope.");
#endif
return NULL;
}
/* allocate an array of pointers */
recipient_list = (NSSCMSRecipient **)
PORT_ZAlloc((count + 1) * sizeof(NSSCMSRecipient *));
if (recipient_list == NULL)
return NULL;
/* now fill in the recipient_list */
rv = nss_cms_recipients_traverse(recipientinfos, recipient_list);
if (rv < 0) {
nss_cms_recipient_list_destroy(recipient_list);
return NULL;
}
return recipient_list;
}
void
nss_cms_recipient_list_destroy(NSSCMSRecipient **recipient_list)
{
int i;
NSSCMSRecipient *recipient;
for (i = 0; recipient_list[i] != NULL; i++) {
recipient = recipient_list[i];
if (recipient->cert)
CERT_DestroyCertificate(recipient->cert);
if (recipient->privkey)
SECKEY_DestroyPrivateKey(recipient->privkey);
if (recipient->slot)
PK11_FreeSlot(recipient->slot);
PORT_Free(recipient);
}
PORT_Free(recipient_list);
}
NSSCMSRecipientEncryptedKey *
NSS_CMSRecipientEncryptedKey_Create(PLArenaPool *poolp)
{
return (NSSCMSRecipientEncryptedKey *)PORT_ArenaZAlloc(poolp,
sizeof(NSSCMSRecipientEncryptedKey));
}
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