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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* 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/. */
#include "PKCS11ModuleDB.h"
#include "ScopedNSSTypes.h"
#include "nsComponentManagerUtils.h"
#include "nsIMutableArray.h"
#include "nsNSSCertHelper.h"
#include "nsNSSComponent.h"
#include "nsNativeCharsetUtils.h"
#include "nsPKCS11Slot.h"
#include "nsServiceManagerUtils.h"
namespace mozilla {
namespace psm {
NS_IMPL_ISUPPORTS(PKCS11ModuleDB, nsIPKCS11ModuleDB)
// Convert the UTF16 name of the module as it appears to the user to the
// internal representation. For most modules this just involves converting from
// UTF16 to UTF8. For the builtin root module, it also involves mapping from the
// localized name to the internal, non-localized name.
static nsresult NormalizeModuleNameIn(const nsAString& moduleNameIn,
nsCString& moduleNameOut) {
nsAutoString localizedRootModuleName;
nsresult rv =
GetPIPNSSBundleString("RootCertModuleName", localizedRootModuleName);
if (NS_FAILED(rv)) {
return rv;
}
if (moduleNameIn.Equals(localizedRootModuleName)) {
moduleNameOut.Assign(kRootModuleName);
return NS_OK;
}
moduleNameOut.Assign(NS_ConvertUTF16toUTF8(moduleNameIn));
return NS_OK;
}
// Delete a PKCS11 module from the user's profile.
NS_IMETHODIMP
PKCS11ModuleDB::DeleteModule(const nsAString& aModuleName) {
if (aModuleName.IsEmpty()) {
return NS_ERROR_INVALID_ARG;
}
nsAutoCString moduleNameNormalized;
nsresult rv = NormalizeModuleNameIn(aModuleName, moduleNameNormalized);
if (NS_FAILED(rv)) {
return rv;
}
// modType is an output variable. We ignore it.
int32_t modType;
SECStatus srv = SECMOD_DeleteModule(moduleNameNormalized.get(), &modType);
if (srv != SECSuccess) {
return NS_ERROR_FAILURE;
}
return NS_OK;
}
// Add a new PKCS11 module to the user's profile.
NS_IMETHODIMP
PKCS11ModuleDB::AddModule(const nsAString& aModuleName,
const nsAString& aLibraryFullPath,
int32_t aCryptoMechanismFlags, int32_t aCipherFlags) {
if (aModuleName.IsEmpty()) {
return NS_ERROR_INVALID_ARG;
}
// "Root Certs" is the name some NSS command-line utilities will give the
// roots module if they decide to load it when there happens to be a
// `MOZ_DLL_PREFIX "nssckbi" MOZ_DLL_SUFFIX` file in the directory being
// operated on. This causes failures, so as a workaround, the PSM
// initialization code will unconditionally remove any module named "Root
// Certs". We should prevent the user from adding an unrelated module named
// "Root Certs" in the first place so PSM doesn't delete it. See bug 1406396.
if (aModuleName.EqualsLiteral("Root Certs")) {
return NS_ERROR_ILLEGAL_VALUE;
}
// There appears to be a deadlock if we try to load modules concurrently, so
// just wait until the loadable roots module has been loaded.
nsresult rv = BlockUntilLoadableCertsLoaded();
if (NS_FAILED(rv)) {
return rv;
}
nsAutoCString moduleNameNormalized;
rv = NormalizeModuleNameIn(aModuleName, moduleNameNormalized);
if (NS_FAILED(rv)) {
return rv;
}
nsCString fullPath;
// NSS doesn't support Unicode path. Use native charset
NS_CopyUnicodeToNative(aLibraryFullPath, fullPath);
uint32_t mechFlags = SECMOD_PubMechFlagstoInternal(aCryptoMechanismFlags);
uint32_t cipherFlags = SECMOD_PubCipherFlagstoInternal(aCipherFlags);
SECStatus srv = SECMOD_AddNewModule(moduleNameNormalized.get(),
fullPath.get(), mechFlags, cipherFlags);
if (srv != SECSuccess) {
return NS_ERROR_FAILURE;
}
return NS_OK;
}
NS_IMETHODIMP
PKCS11ModuleDB::ListModules(nsISimpleEnumerator** _retval) {
NS_ENSURE_ARG_POINTER(_retval);
nsresult rv = BlockUntilLoadableCertsLoaded();
if (NS_FAILED(rv)) {
return rv;
}
nsCOMPtr<nsIMutableArray> array = do_CreateInstance(NS_ARRAY_CONTRACTID);
if (!array) {
return NS_ERROR_FAILURE;
}
/* lock down the list for reading */
AutoSECMODListReadLock lock;
for (SECMODModuleList* list = SECMOD_GetDefaultModuleList(); list;
list = list->next) {
nsCOMPtr<nsIPKCS11Module> module = new nsPKCS11Module(list->module);
nsresult rv = array->AppendElement(module);
if (NS_FAILED(rv)) {
return rv;
}
}
/* Get the modules in the database that didn't load */
for (SECMODModuleList* list = SECMOD_GetDeadModuleList(); list;
list = list->next) {
nsCOMPtr<nsIPKCS11Module> module = new nsPKCS11Module(list->module);
nsresult rv = array->AppendElement(module);
if (NS_FAILED(rv)) {
return rv;
}
}
return array->Enumerate(_retval, NS_GET_IID(nsIPKCS11Module));
}
NS_IMETHODIMP
PKCS11ModuleDB::GetCanToggleFIPS(bool* aCanToggleFIPS) {
NS_ENSURE_ARG_POINTER(aCanToggleFIPS);
*aCanToggleFIPS = SECMOD_CanDeleteInternalModule();
return NS_OK;
}
NS_IMETHODIMP
PKCS11ModuleDB::ToggleFIPSMode() {
// The way to toggle FIPS mode in NSS is extremely obscure. Basically, we
// delete the internal module, and it gets replaced with the opposite module
// (i.e. if it was FIPS before, then it becomes non-FIPS next).
// SECMOD_GetInternalModule() returns a pointer to a local copy of the
// internal module stashed in NSS. We don't want to delete it since it will
// cause much pain in NSS.
SECMODModule* internal = SECMOD_GetInternalModule();
if (!internal) {
return NS_ERROR_FAILURE;
}
if (SECMOD_DeleteInternalModule(internal->commonName) != SECSuccess) {
return NS_ERROR_FAILURE;
}
return NS_OK;
}
NS_IMETHODIMP
PKCS11ModuleDB::GetIsFIPSEnabled(bool* aIsFIPSEnabled) {
NS_ENSURE_ARG_POINTER(aIsFIPSEnabled);
*aIsFIPSEnabled = PK11_IsFIPS();
return NS_OK;
}
} // namespace psm
} // namespace mozilla