mirror of
https://github.com/rn10950/RetroZilla.git
synced 2024-11-11 02:10:17 +01:00
447 lines
10 KiB
C
447 lines
10 KiB
C
/* 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 User Define Types
|
|
*/
|
|
|
|
#include "cmslocal.h"
|
|
|
|
#include "prinit.h"
|
|
#include "pk11func.h"
|
|
#include "secitem.h"
|
|
#include "secoid.h"
|
|
#include "secerr.h"
|
|
#include "nss.h"
|
|
|
|
typedef struct nsscmstypeInfoStr nsscmstypeInfo;
|
|
struct nsscmstypeInfoStr {
|
|
SECOidTag type;
|
|
SEC_ASN1Template *template;
|
|
size_t size;
|
|
PRBool isData;
|
|
NSSCMSGenericWrapperDataDestroy destroy;
|
|
NSSCMSGenericWrapperDataCallback decode_before;
|
|
NSSCMSGenericWrapperDataCallback decode_after;
|
|
NSSCMSGenericWrapperDataCallback decode_end;
|
|
NSSCMSGenericWrapperDataCallback encode_start;
|
|
NSSCMSGenericWrapperDataCallback encode_before;
|
|
NSSCMSGenericWrapperDataCallback encode_after;
|
|
};
|
|
|
|
/* make sure the global tables are only initialized once */
|
|
static PRCallOnceType nsscmstypeOnce;
|
|
static PRCallOnceType nsscmstypeClearOnce;
|
|
/* lock for adding a new entry */
|
|
static PRLock *nsscmstypeAddLock;
|
|
/* lock for the hash table */
|
|
static PRLock *nsscmstypeHashLock;
|
|
/* the hash table itself */
|
|
static PLHashTable *nsscmstypeHash;
|
|
/* arena to hold all the hash table data */
|
|
static PLArenaPool *nsscmstypeArena;
|
|
|
|
/*
|
|
* clean up our global tables
|
|
*/
|
|
SECStatus
|
|
nss_cmstype_shutdown(void *appData, void *reserved)
|
|
{
|
|
if (nsscmstypeHashLock) {
|
|
PR_Lock(nsscmstypeHashLock);
|
|
}
|
|
if (nsscmstypeHash) {
|
|
PL_HashTableDestroy(nsscmstypeHash);
|
|
nsscmstypeHash = NULL;
|
|
}
|
|
if (nsscmstypeArena) {
|
|
PORT_FreeArena(nsscmstypeArena, PR_FALSE);
|
|
nsscmstypeArena = NULL;
|
|
}
|
|
if (nsscmstypeAddLock) {
|
|
PR_DestroyLock(nsscmstypeAddLock);
|
|
}
|
|
if (nsscmstypeHashLock) {
|
|
PRLock *oldLock = nsscmstypeHashLock;
|
|
nsscmstypeHashLock = NULL;
|
|
PR_Unlock(oldLock);
|
|
PR_DestroyLock(oldLock);
|
|
}
|
|
|
|
/* don't clear out the PR_ONCE data if we failed our inital call */
|
|
if (appData == NULL) {
|
|
nsscmstypeOnce = nsscmstypeClearOnce;
|
|
}
|
|
return SECSuccess;
|
|
}
|
|
|
|
static PLHashNumber
|
|
nss_cmstype_hash_key(const void *key)
|
|
{
|
|
return (PLHashNumber) key;
|
|
}
|
|
|
|
static PRIntn
|
|
nss_cmstype_compare_keys(const void *v1, const void *v2)
|
|
{
|
|
PLHashNumber value1 = (PLHashNumber) v1;
|
|
PLHashNumber value2 = (PLHashNumber) v2;
|
|
|
|
return (value1 == value2);
|
|
}
|
|
|
|
/*
|
|
* initialize our hash tables, called once on the first attemat to register
|
|
* a new SMIME type.
|
|
*/
|
|
static PRStatus
|
|
nss_cmstype_init(void)
|
|
{
|
|
SECStatus rv;
|
|
|
|
nsscmstypeHashLock = PR_NewLock();
|
|
if (nsscmstypeHashLock == NULL) {
|
|
return PR_FAILURE;
|
|
}
|
|
nsscmstypeAddLock = PR_NewLock();
|
|
if (nsscmstypeHashLock == NULL) {
|
|
goto fail;
|
|
}
|
|
nsscmstypeHash = PL_NewHashTable(64, nss_cmstype_hash_key,
|
|
nss_cmstype_compare_keys, PL_CompareValues, NULL, NULL);
|
|
if (nsscmstypeHash == NULL) {
|
|
goto fail;
|
|
}
|
|
nsscmstypeArena = PORT_NewArena(2048);
|
|
if (nsscmstypeArena == NULL) {
|
|
goto fail;
|
|
}
|
|
rv = NSS_RegisterShutdown(nss_cmstype_shutdown, NULL);
|
|
if (rv != SECSuccess) {
|
|
goto fail;
|
|
}
|
|
return PR_SUCCESS;
|
|
|
|
fail:
|
|
nss_cmstype_shutdown(&nsscmstypeOnce, NULL);
|
|
return PR_FAILURE;
|
|
}
|
|
|
|
|
|
/*
|
|
* look up and registered SIME type
|
|
*/
|
|
static const nsscmstypeInfo *
|
|
nss_cmstype_lookup(SECOidTag type)
|
|
{
|
|
nsscmstypeInfo *typeInfo = NULL;;
|
|
if (!nsscmstypeHash) {
|
|
return NULL;
|
|
}
|
|
PR_Lock(nsscmstypeHashLock);
|
|
if (nsscmstypeHash) {
|
|
typeInfo = PL_HashTableLookupConst(nsscmstypeHash, (void *)type);
|
|
}
|
|
PR_Unlock(nsscmstypeHashLock);
|
|
return typeInfo;
|
|
}
|
|
|
|
/*
|
|
* add a new type to the SMIME type table
|
|
*/
|
|
static SECStatus
|
|
nss_cmstype_add(SECOidTag type, nsscmstypeInfo *typeinfo)
|
|
{
|
|
PLHashEntry *entry;
|
|
|
|
if (!nsscmstypeHash) {
|
|
/* assert? this shouldn't happen */
|
|
return SECFailure;
|
|
}
|
|
PR_Lock(nsscmstypeHashLock);
|
|
/* this is really paranoia. If we really are racing nsscmstypeHash, we'll
|
|
* also be racing nsscmstypeHashLock... */
|
|
if (!nsscmstypeHash) {
|
|
PR_Unlock(nsscmstypeHashLock);
|
|
return SECFailure;
|
|
}
|
|
entry = PL_HashTableAdd(nsscmstypeHash, (void *)type, typeinfo);
|
|
PR_Unlock(nsscmstypeHashLock);
|
|
return entry ? SECSuccess : SECFailure;
|
|
}
|
|
|
|
|
|
/* helper functions to manage new content types
|
|
*/
|
|
|
|
PRBool
|
|
NSS_CMSType_IsWrapper(SECOidTag type)
|
|
{
|
|
const nsscmstypeInfo *typeInfo = NULL;
|
|
|
|
switch (type) {
|
|
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 PR_TRUE;
|
|
default:
|
|
typeInfo = nss_cmstype_lookup(type);
|
|
if (typeInfo && !typeInfo->isData) {
|
|
return PR_TRUE;
|
|
}
|
|
}
|
|
return PR_FALSE;
|
|
}
|
|
|
|
PRBool
|
|
NSS_CMSType_IsData(SECOidTag type)
|
|
{
|
|
const nsscmstypeInfo *typeInfo = NULL;
|
|
|
|
switch (type) {
|
|
case SEC_OID_PKCS7_DATA:
|
|
return PR_TRUE;
|
|
default:
|
|
typeInfo = nss_cmstype_lookup(type);
|
|
if (typeInfo && typeInfo->isData) {
|
|
return PR_TRUE;
|
|
}
|
|
}
|
|
return PR_FALSE;
|
|
}
|
|
|
|
const SEC_ASN1Template *
|
|
NSS_CMSType_GetTemplate(SECOidTag type)
|
|
{
|
|
const nsscmstypeInfo *typeInfo = nss_cmstype_lookup(type);
|
|
|
|
if (typeInfo && typeInfo->template) {
|
|
return typeInfo->template;
|
|
}
|
|
return SEC_ASN1_GET(SEC_PointerToOctetStringTemplate);
|
|
}
|
|
|
|
size_t
|
|
NSS_CMSType_GetContentSize(SECOidTag type)
|
|
{
|
|
const nsscmstypeInfo *typeInfo = nss_cmstype_lookup(type);
|
|
|
|
if (typeInfo) {
|
|
return typeInfo->size;
|
|
}
|
|
return sizeof(SECItem *);
|
|
|
|
}
|
|
|
|
void
|
|
NSS_CMSGenericWrapperData_Destroy(SECOidTag type, NSSCMSGenericWrapperData *gd)
|
|
{
|
|
const nsscmstypeInfo *typeInfo = nss_cmstype_lookup(type);
|
|
|
|
if (typeInfo && typeInfo->destroy) {
|
|
(*typeInfo->destroy)(gd);
|
|
}
|
|
|
|
}
|
|
|
|
|
|
SECStatus
|
|
NSS_CMSGenericWrapperData_Decode_BeforeData(SECOidTag type,
|
|
NSSCMSGenericWrapperData *gd)
|
|
{
|
|
const nsscmstypeInfo *typeInfo;
|
|
|
|
/* short cut common case */
|
|
if (type == SEC_OID_PKCS7_DATA) {
|
|
return SECSuccess;
|
|
}
|
|
|
|
typeInfo = nss_cmstype_lookup(type);
|
|
if (typeInfo) {
|
|
if (typeInfo->decode_before) {
|
|
return (*typeInfo->decode_before)(gd);
|
|
}
|
|
/* decoder ops optional for data tags */
|
|
if (typeInfo->isData) {
|
|
return SECSuccess;
|
|
}
|
|
}
|
|
/* expected a function, but none existed */
|
|
return SECFailure;
|
|
|
|
}
|
|
|
|
SECStatus
|
|
NSS_CMSGenericWrapperData_Decode_AfterData(SECOidTag type,
|
|
NSSCMSGenericWrapperData *gd)
|
|
{
|
|
const nsscmstypeInfo *typeInfo;
|
|
|
|
/* short cut common case */
|
|
if (type == SEC_OID_PKCS7_DATA) {
|
|
return SECSuccess;
|
|
}
|
|
|
|
typeInfo = nss_cmstype_lookup(type);
|
|
if (typeInfo) {
|
|
if (typeInfo->decode_after) {
|
|
return (*typeInfo->decode_after)(gd);
|
|
}
|
|
/* decoder ops optional for data tags */
|
|
if (typeInfo->isData) {
|
|
return SECSuccess;
|
|
}
|
|
}
|
|
/* expected a function, but none existed */
|
|
return SECFailure;
|
|
}
|
|
|
|
SECStatus
|
|
NSS_CMSGenericWrapperData_Decode_AfterEnd(SECOidTag type,
|
|
NSSCMSGenericWrapperData *gd)
|
|
{
|
|
const nsscmstypeInfo *typeInfo;
|
|
|
|
/* short cut common case */
|
|
if (type == SEC_OID_PKCS7_DATA) {
|
|
return SECSuccess;
|
|
}
|
|
|
|
typeInfo = nss_cmstype_lookup(type);
|
|
if (typeInfo) {
|
|
if (typeInfo->decode_end) {
|
|
return (*typeInfo->decode_end)(gd);
|
|
}
|
|
/* decoder ops optional for data tags */
|
|
if (typeInfo->isData) {
|
|
return SECSuccess;
|
|
}
|
|
}
|
|
/* expected a function, but none existed */
|
|
return SECFailure;
|
|
}
|
|
|
|
SECStatus
|
|
NSS_CMSGenericWrapperData_Encode_BeforeStart(SECOidTag type,
|
|
NSSCMSGenericWrapperData *gd)
|
|
{
|
|
const nsscmstypeInfo *typeInfo;
|
|
|
|
/* short cut common case */
|
|
if (type == SEC_OID_PKCS7_DATA) {
|
|
return SECSuccess;
|
|
}
|
|
|
|
typeInfo = nss_cmstype_lookup(type);
|
|
if (typeInfo) {
|
|
if (typeInfo->encode_start) {
|
|
return (*typeInfo->encode_start)(gd);
|
|
}
|
|
/* decoder ops optional for data tags */
|
|
if (typeInfo->isData) {
|
|
return SECSuccess;
|
|
}
|
|
}
|
|
/* expected a function, but none existed */
|
|
return SECFailure;
|
|
}
|
|
|
|
SECStatus
|
|
NSS_CMSGenericWrapperData_Encode_BeforeData(SECOidTag type,
|
|
NSSCMSGenericWrapperData *gd)
|
|
{
|
|
const nsscmstypeInfo *typeInfo;
|
|
|
|
/* short cut common case */
|
|
if (type == SEC_OID_PKCS7_DATA) {
|
|
return SECSuccess;
|
|
}
|
|
|
|
typeInfo = nss_cmstype_lookup(type);
|
|
if (typeInfo) {
|
|
if (typeInfo->encode_before) {
|
|
return (*typeInfo->encode_before)(gd);
|
|
}
|
|
/* decoder ops optional for data tags */
|
|
if (typeInfo->isData) {
|
|
return SECSuccess;
|
|
}
|
|
}
|
|
/* expected a function, but none existed */
|
|
return SECFailure;
|
|
}
|
|
|
|
SECStatus
|
|
NSS_CMSGenericWrapperData_Encode_AfterData(SECOidTag type,
|
|
NSSCMSGenericWrapperData *gd)
|
|
{
|
|
const nsscmstypeInfo *typeInfo;
|
|
|
|
/* short cut common case */
|
|
if (type == SEC_OID_PKCS7_DATA) {
|
|
return SECSuccess;
|
|
}
|
|
|
|
typeInfo = nss_cmstype_lookup(type);
|
|
if (typeInfo) {
|
|
if (typeInfo->encode_after) {
|
|
return (*typeInfo->encode_after)(gd);
|
|
}
|
|
/* decoder ops optional for data tags */
|
|
if (typeInfo->isData) {
|
|
return SECSuccess;
|
|
}
|
|
}
|
|
/* expected a function, but none existed */
|
|
return SECFailure;
|
|
}
|
|
|
|
|
|
SECStatus
|
|
NSS_CMSType_RegisterContentType(SECOidTag type,
|
|
SEC_ASN1Template *asn1Template, size_t size,
|
|
NSSCMSGenericWrapperDataDestroy destroy,
|
|
NSSCMSGenericWrapperDataCallback decode_before,
|
|
NSSCMSGenericWrapperDataCallback decode_after,
|
|
NSSCMSGenericWrapperDataCallback decode_end,
|
|
NSSCMSGenericWrapperDataCallback encode_start,
|
|
NSSCMSGenericWrapperDataCallback encode_before,
|
|
NSSCMSGenericWrapperDataCallback encode_after,
|
|
PRBool isData)
|
|
{
|
|
PRStatus rc;
|
|
SECStatus rv;
|
|
nsscmstypeInfo *typeInfo;
|
|
const nsscmstypeInfo *exists;
|
|
|
|
rc = PR_CallOnce( &nsscmstypeOnce, nss_cmstype_init);
|
|
if (rc == PR_FAILURE) {
|
|
return SECFailure;
|
|
}
|
|
PR_Lock(nsscmstypeAddLock);
|
|
exists = nss_cmstype_lookup(type);
|
|
if (exists) {
|
|
PR_Unlock(nsscmstypeAddLock);
|
|
/* already added */
|
|
return SECSuccess;
|
|
}
|
|
typeInfo = PORT_ArenaNew(nsscmstypeArena, nsscmstypeInfo);
|
|
typeInfo->type = type;
|
|
typeInfo->size = size;
|
|
typeInfo->isData = isData;
|
|
typeInfo->template = asn1Template;
|
|
typeInfo->destroy = destroy;
|
|
typeInfo->decode_before = decode_before;
|
|
typeInfo->decode_after = decode_after;
|
|
typeInfo->decode_end = decode_end;
|
|
typeInfo->encode_start = encode_start;
|
|
typeInfo->encode_before = encode_before;
|
|
typeInfo->encode_after = encode_after;
|
|
rv = nss_cmstype_add(type, typeInfo);
|
|
PR_Unlock(nsscmstypeAddLock);
|
|
return rv;
|
|
}
|
|
|