mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-11-01 06:35:42 +00:00
f9ce4741fd
This patch converts |ListenSocket| to forward events to an instance of |ListenSocketConsumer|. All users are converted and the related listener and consumer classes are removed.
987 lines
28 KiB
C++
987 lines
28 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* vim: set sw=2 ts=2 et ft=cpp: 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 <fcntl.h>
|
|
#include <limits.h>
|
|
#include <pwd.h>
|
|
#include <sys/stat.h>
|
|
#include <sys/types.h>
|
|
|
|
#if defined(MOZ_WIDGET_GONK)
|
|
#include <android/log.h>
|
|
#define KEYSTORE_LOG(args...) __android_log_print(ANDROID_LOG_INFO, "Gonk", args)
|
|
#else
|
|
#define KEYSTORE_LOG(args...) printf(args);
|
|
#endif
|
|
|
|
#include "KeyStore.h"
|
|
#include "jsfriendapi.h"
|
|
#include "KeyStoreConnector.h"
|
|
#include "MainThreadUtils.h" // For NS_IsMainThread.
|
|
#include "nsICryptoHash.h"
|
|
|
|
#include "plbase64.h"
|
|
#include "certdb.h"
|
|
#include "ScopedNSSTypes.h"
|
|
|
|
using namespace mozilla::ipc;
|
|
#if ANDROID_VERSION >= 18
|
|
// After Android 4.3, it uses binder to access keystore instead of unix socket.
|
|
#include <android/log.h>
|
|
#include <binder/BinderService.h>
|
|
#include <binder/IPCThreadState.h>
|
|
#include <binder/IServiceManager.h>
|
|
#include <security/keystore/include/keystore/IKeystoreService.h>
|
|
#include <security/keystore/include/keystore/keystore.h>
|
|
|
|
using namespace android;
|
|
|
|
namespace android {
|
|
// This class is used to make compiler happy.
|
|
class BpKeystoreService : public BpInterface<IKeystoreService>
|
|
{
|
|
public:
|
|
BpKeystoreService(const sp<IBinder>& impl)
|
|
: BpInterface<IKeystoreService>(impl)
|
|
{
|
|
}
|
|
|
|
virtual int32_t get(const String16& name, uint8_t** item, size_t* itemLength) {return 0;}
|
|
virtual int32_t test() {return 0;}
|
|
virtual int32_t insert(const String16& name, const uint8_t* item, size_t itemLength, int uid, int32_t flags) {return 0;}
|
|
virtual int32_t del(const String16& name, int uid) {return 0;}
|
|
virtual int32_t exist(const String16& name, int uid) {return 0;}
|
|
virtual int32_t saw(const String16& name, int uid, Vector<String16>* matches) {return 0;}
|
|
virtual int32_t reset() {return 0;}
|
|
virtual int32_t password(const String16& password) {return 0;}
|
|
virtual int32_t lock() {return 0;}
|
|
virtual int32_t unlock(const String16& password) {return 0;}
|
|
virtual int32_t zero() {return 0;}
|
|
virtual int32_t import(const String16& name, const uint8_t* data, size_t length, int uid, int32_t flags) {return 0;}
|
|
virtual int32_t sign(const String16& name, const uint8_t* data, size_t length, uint8_t** out, size_t* outLength) {return 0;}
|
|
virtual int32_t verify(const String16& name, const uint8_t* data, size_t dataLength, const uint8_t* signature, size_t signatureLength) {return 0;}
|
|
virtual int32_t get_pubkey(const String16& name, uint8_t** pubkey, size_t* pubkeyLength) {return 0;}
|
|
virtual int32_t del_key(const String16& name, int uid) {return 0;}
|
|
virtual int32_t grant(const String16& name, int32_t granteeUid) {return 0;}
|
|
virtual int32_t ungrant(const String16& name, int32_t granteeUid) {return 0;}
|
|
virtual int64_t getmtime(const String16& name) {return 0;}
|
|
virtual int32_t duplicate(const String16& srcKey, int32_t srcUid, const String16& destKey, int32_t destUid) {return 0;}
|
|
virtual int32_t clear_uid(int64_t uid) {return 0;}
|
|
#if ANDROID_VERSION >= 21
|
|
virtual int32_t generate(const String16& name, int32_t uid, int32_t keyType, int32_t keySize, int32_t flags, Vector<sp<KeystoreArg> >* args) {return 0;}
|
|
virtual int32_t is_hardware_backed(const String16& keyType) {return 0;}
|
|
virtual int32_t reset_uid(int32_t uid) {return 0;}
|
|
virtual int32_t sync_uid(int32_t sourceUid, int32_t targetUid) {return 0;}
|
|
virtual int32_t password_uid(const String16& password, int32_t uid) {return 0;}
|
|
#elif ANDROID_VERSION == 18
|
|
virtual int32_t generate(const String16& name, int uid, int32_t flags) {return 0;}
|
|
virtual int32_t is_hardware_backed() {return 0;}
|
|
#else
|
|
virtual int32_t generate(const String16& name, int32_t uid, int32_t keyType, int32_t keySize, int32_t flags, Vector<sp<KeystoreArg> >* args) {return 0;}
|
|
virtual int32_t is_hardware_backed(const String16& keyType) {return 0;}
|
|
#endif
|
|
};
|
|
|
|
IMPLEMENT_META_INTERFACE(KeystoreService, "android.security.keystore");
|
|
|
|
// Here comes binder requests.
|
|
status_t BnKeystoreService::onTransact(uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
|
|
{
|
|
switch(code) {
|
|
case TEST: {
|
|
CHECK_INTERFACE(IKeystoreService, data, reply);
|
|
reply->writeNoException();
|
|
reply->writeInt32(test());
|
|
return NO_ERROR;
|
|
} break;
|
|
case GET: {
|
|
CHECK_INTERFACE(IKeystoreService, data, reply);
|
|
String16 name = data.readString16();
|
|
String8 tmp(name);
|
|
uint8_t* data = NULL;
|
|
size_t dataLength = 0;
|
|
int32_t ret = get(name, &data, &dataLength);
|
|
|
|
reply->writeNoException();
|
|
if (ret == 1) {
|
|
reply->writeInt32(dataLength);
|
|
void* buf = reply->writeInplace(dataLength);
|
|
memcpy(buf, data, dataLength);
|
|
free(data);
|
|
} else {
|
|
reply->writeInt32(-1);
|
|
}
|
|
return NO_ERROR;
|
|
} break;
|
|
case GET_PUBKEY: {
|
|
CHECK_INTERFACE(IKeystoreService, data, reply);
|
|
String16 name = data.readString16();
|
|
uint8_t* data = nullptr;
|
|
size_t dataLength = 0;
|
|
int32_t ret = get_pubkey(name, &data, &dataLength);
|
|
|
|
reply->writeNoException();
|
|
if (dataLength > 0 && data != nullptr) {
|
|
reply->writeInt32(dataLength);
|
|
void* buf = reply->writeInplace(dataLength);
|
|
memcpy(buf, data, dataLength);
|
|
free(data);
|
|
} else {
|
|
reply->writeInt32(-1);
|
|
}
|
|
reply->writeInt32(ret);
|
|
return NO_ERROR;
|
|
} break;
|
|
case SIGN: {
|
|
CHECK_INTERFACE(IKeystoreService, data, reply);
|
|
String16 name = data.readString16();
|
|
ssize_t signDataSize = data.readInt32();
|
|
const uint8_t *signData = nullptr;
|
|
if (signDataSize >= 0 && (size_t)signDataSize <= data.dataAvail()) {
|
|
signData = (const uint8_t *)data.readInplace(signDataSize);
|
|
}
|
|
|
|
uint8_t *signResult = nullptr;
|
|
size_t signResultSize;
|
|
int32_t ret = sign(name, signData, (size_t)signDataSize, &signResult,
|
|
&signResultSize);
|
|
|
|
reply->writeNoException();
|
|
if (signResultSize > 0 && signResult != nullptr) {
|
|
reply->writeInt32(signResultSize);
|
|
void* buf = reply->writeInplace(signResultSize);
|
|
memcpy(buf, signResult, signResultSize);
|
|
free(signResult);
|
|
} else {
|
|
reply->writeInt32(-1);
|
|
}
|
|
reply->writeInt32(ret);
|
|
return NO_ERROR;
|
|
} break;
|
|
default:
|
|
return NO_ERROR;
|
|
}
|
|
}
|
|
|
|
// Provide service for binder.
|
|
class KeyStoreService : public BnKeystoreService
|
|
, public nsNSSShutDownObject
|
|
{
|
|
public:
|
|
int32_t test() {
|
|
uid_t callingUid = IPCThreadState::self()->getCallingUid();
|
|
if (!mozilla::ipc::checkPermission(callingUid)) {
|
|
return ::PERMISSION_DENIED;
|
|
}
|
|
|
|
return ::NO_ERROR;
|
|
}
|
|
|
|
int32_t get(const String16& name, uint8_t** item, size_t* itemLength) {
|
|
nsNSSShutDownPreventionLock locker;
|
|
if (isAlreadyShutDown()) {
|
|
return ::SYSTEM_ERROR;
|
|
}
|
|
|
|
uid_t callingUid = IPCThreadState::self()->getCallingUid();
|
|
if (!mozilla::ipc::checkPermission(callingUid)) {
|
|
return ::PERMISSION_DENIED;
|
|
}
|
|
|
|
String8 certName(name);
|
|
if (!strncmp(certName.string(), "WIFI_USERKEY_", 13)) {
|
|
return getPrivateKey(certName.string(), (const uint8_t**)item, itemLength);
|
|
}
|
|
|
|
return getCertificate(certName.string(), (const uint8_t**)item, itemLength);
|
|
}
|
|
|
|
int32_t insert(const String16& name, const uint8_t* item, size_t itemLength, int uid, int32_t flags) {return ::UNDEFINED_ACTION;}
|
|
int32_t del(const String16& name, int uid) {return ::UNDEFINED_ACTION;}
|
|
int32_t exist(const String16& name, int uid) {return ::UNDEFINED_ACTION;}
|
|
int32_t saw(const String16& name, int uid, Vector<String16>* matches) {return ::UNDEFINED_ACTION;}
|
|
int32_t reset() {return ::UNDEFINED_ACTION;}
|
|
int32_t password(const String16& password) {return ::UNDEFINED_ACTION;}
|
|
int32_t lock() {return ::UNDEFINED_ACTION;}
|
|
int32_t unlock(const String16& password) {return ::UNDEFINED_ACTION;}
|
|
int32_t zero() {return ::UNDEFINED_ACTION;}
|
|
int32_t import(const String16& name, const uint8_t* data, size_t length, int uid, int32_t flags) {return ::UNDEFINED_ACTION;}
|
|
int32_t sign(const String16& name, const uint8_t* data, size_t length, uint8_t** out, size_t* outLength)
|
|
{
|
|
nsNSSShutDownPreventionLock locker;
|
|
if (isAlreadyShutDown()) {
|
|
return ::SYSTEM_ERROR;
|
|
}
|
|
|
|
uid_t callingUid = IPCThreadState::self()->getCallingUid();
|
|
if (!mozilla::ipc::checkPermission(callingUid)) {
|
|
return ::PERMISSION_DENIED;
|
|
}
|
|
|
|
if (data == nullptr) {
|
|
return ::SYSTEM_ERROR;
|
|
}
|
|
|
|
String8 keyName(name);
|
|
if (!strncmp(keyName.string(), "WIFI_USERKEY_", 13)) {
|
|
return signData(keyName.string(), data, length, out, outLength);
|
|
}
|
|
|
|
return ::UNDEFINED_ACTION;
|
|
}
|
|
|
|
int32_t verify(const String16& name, const uint8_t* data, size_t dataLength, const uint8_t* signature, size_t signatureLength) {return ::UNDEFINED_ACTION;}
|
|
int32_t get_pubkey(const String16& name, uint8_t** pubkey, size_t* pubkeyLength) {
|
|
nsNSSShutDownPreventionLock locker;
|
|
if (isAlreadyShutDown()) {
|
|
return ::SYSTEM_ERROR;
|
|
}
|
|
|
|
uid_t callingUid = IPCThreadState::self()->getCallingUid();
|
|
if (!mozilla::ipc::checkPermission(callingUid)) {
|
|
return ::PERMISSION_DENIED;
|
|
}
|
|
|
|
String8 keyName(name);
|
|
if (!strncmp(keyName.string(), "WIFI_USERKEY_", 13)) {
|
|
return getPublicKey(keyName.string(), (const uint8_t**)pubkey, pubkeyLength);
|
|
}
|
|
|
|
return ::UNDEFINED_ACTION;
|
|
}
|
|
|
|
int32_t del_key(const String16& name, int uid) {return ::UNDEFINED_ACTION;}
|
|
int32_t grant(const String16& name, int32_t granteeUid) {return ::UNDEFINED_ACTION;}
|
|
int32_t ungrant(const String16& name, int32_t granteeUid) {return ::UNDEFINED_ACTION;}
|
|
int64_t getmtime(const String16& name) {return ::UNDEFINED_ACTION;}
|
|
int32_t duplicate(const String16& srcKey, int32_t srcUid, const String16& destKey, int32_t destUid) {return ::UNDEFINED_ACTION;}
|
|
int32_t clear_uid(int64_t uid) {return ::UNDEFINED_ACTION;}
|
|
#if ANDROID_VERSION >= 21
|
|
virtual int32_t generate(const String16& name, int32_t uid, int32_t keyType, int32_t keySize, int32_t flags, Vector<sp<KeystoreArg> >* args) {return ::UNDEFINED_ACTION;}
|
|
virtual int32_t is_hardware_backed(const String16& keyType) {return ::UNDEFINED_ACTION;}
|
|
virtual int32_t reset_uid(int32_t uid) {return ::UNDEFINED_ACTION;;}
|
|
virtual int32_t sync_uid(int32_t sourceUid, int32_t targetUid) {return ::UNDEFINED_ACTION;}
|
|
virtual int32_t password_uid(const String16& password, int32_t uid) {return ::UNDEFINED_ACTION;}
|
|
#elif ANDROID_VERSION == 18
|
|
virtual int32_t generate(const String16& name, int uid, int32_t flags) {return ::UNDEFINED_ACTION;}
|
|
virtual int32_t is_hardware_backed() {return ::UNDEFINED_ACTION;}
|
|
#else
|
|
virtual int32_t generate(const String16& name, int32_t uid, int32_t keyType, int32_t keySize, int32_t flags, Vector<sp<KeystoreArg> >* args) {return ::UNDEFINED_ACTION;}
|
|
virtual int32_t is_hardware_backed(const String16& keyType) {return ::UNDEFINED_ACTION;}
|
|
#endif
|
|
|
|
protected:
|
|
virtual void virtualDestroyNSSReference() {}
|
|
|
|
private:
|
|
~KeyStoreService() {
|
|
nsNSSShutDownPreventionLock locker;
|
|
if (isAlreadyShutDown()) {
|
|
return;
|
|
}
|
|
shutdown(calledFromObject);
|
|
}
|
|
};
|
|
|
|
} // namespace android
|
|
|
|
void startKeyStoreService()
|
|
{
|
|
android::sp<android::IServiceManager> sm = android::defaultServiceManager();
|
|
android::sp<android::KeyStoreService> keyStoreService = new android::KeyStoreService();
|
|
sm->addService(String16("android.security.keystore"), keyStoreService);
|
|
}
|
|
#else
|
|
void startKeyStoreService() { return; }
|
|
#endif
|
|
|
|
static const char *CA_BEGIN = "-----BEGIN ",
|
|
*CA_END = "-----END ",
|
|
*CA_TAILER = "-----\n";
|
|
|
|
namespace mozilla {
|
|
namespace ipc {
|
|
|
|
static const char* KEYSTORE_ALLOWED_USERS[] = {
|
|
"root",
|
|
"wifi",
|
|
NULL
|
|
};
|
|
static const char* KEYSTORE_ALLOWED_PREFIXES[] = {
|
|
"WIFI_SERVERCERT_",
|
|
"WIFI_USERCERT_",
|
|
"WIFI_USERKEY_",
|
|
NULL
|
|
};
|
|
|
|
// Transform base64 certification data into DER format
|
|
void
|
|
FormatCaData(const char *aCaData, int aCaDataLength,
|
|
const char *aName, const uint8_t **aFormatData,
|
|
size_t *aFormatDataLength)
|
|
{
|
|
size_t bufSize = strlen(CA_BEGIN) + strlen(CA_END) + strlen(CA_TAILER) * 2 +
|
|
strlen(aName) * 2 + aCaDataLength + aCaDataLength/CA_LINE_SIZE
|
|
+ 2;
|
|
char *buf = (char *)malloc(bufSize);
|
|
if (!buf) {
|
|
*aFormatData = nullptr;
|
|
return;
|
|
}
|
|
|
|
*aFormatDataLength = bufSize;
|
|
*aFormatData = (const uint8_t *)buf;
|
|
|
|
char *ptr = buf;
|
|
size_t len;
|
|
|
|
// Create DER header.
|
|
len = snprintf(ptr, bufSize, "%s%s%s", CA_BEGIN, aName, CA_TAILER);
|
|
ptr += len;
|
|
bufSize -= len;
|
|
|
|
// Split base64 data in lines.
|
|
int copySize;
|
|
while (aCaDataLength > 0) {
|
|
copySize = (aCaDataLength > CA_LINE_SIZE) ? CA_LINE_SIZE : aCaDataLength;
|
|
|
|
memcpy(ptr, aCaData, copySize);
|
|
ptr += copySize;
|
|
aCaData += copySize;
|
|
aCaDataLength -= copySize;
|
|
bufSize -= copySize;
|
|
|
|
*ptr = '\n';
|
|
ptr++;
|
|
bufSize--;
|
|
}
|
|
|
|
// Create DEA tailer.
|
|
snprintf(ptr, bufSize, "%s%s%s", CA_END, aName, CA_TAILER);
|
|
}
|
|
|
|
ResponseCode
|
|
getCertificate(const char *aCertName, const uint8_t **aCertData,
|
|
size_t *aCertDataLength)
|
|
{
|
|
// certificate name prefix check.
|
|
if (!aCertName) {
|
|
return KEY_NOT_FOUND;
|
|
}
|
|
|
|
const char **prefix = KEYSTORE_ALLOWED_PREFIXES;
|
|
for (; *prefix; prefix++ ) {
|
|
if (!strncmp(*prefix, aCertName, strlen(*prefix))) {
|
|
break;
|
|
}
|
|
}
|
|
if (!(*prefix)) {
|
|
return KEY_NOT_FOUND;
|
|
}
|
|
|
|
// Get cert from NSS by name
|
|
ScopedCERTCertificate cert(CERT_FindCertByNickname(CERT_GetDefaultCertDB(),
|
|
aCertName));
|
|
|
|
if (!cert) {
|
|
return KEY_NOT_FOUND;
|
|
}
|
|
|
|
char *certDER = PL_Base64Encode((const char *)cert->derCert.data,
|
|
cert->derCert.len, nullptr);
|
|
if (!certDER) {
|
|
return SYSTEM_ERROR;
|
|
}
|
|
|
|
FormatCaData(certDER, strlen(certDER), "CERTIFICATE", aCertData,
|
|
aCertDataLength);
|
|
PL_strfree(certDER);
|
|
|
|
if (!(*aCertData)) {
|
|
return SYSTEM_ERROR;
|
|
}
|
|
|
|
return SUCCESS;
|
|
}
|
|
|
|
ResponseCode getPrivateKey(const char *aKeyName, const uint8_t **aKeyData,
|
|
size_t *aKeyDataLength)
|
|
{
|
|
*aKeyData = nullptr;
|
|
// Get corresponding user certificate nickname
|
|
char userCertName[128] = {0};
|
|
snprintf(userCertName, sizeof(userCertName) - 1, "WIFI_USERCERT_%s", aKeyName + 13);
|
|
|
|
// Get private key from user certificate.
|
|
ScopedCERTCertificate userCert(
|
|
CERT_FindCertByNickname(CERT_GetDefaultCertDB(), userCertName));
|
|
if (!userCert) {
|
|
return KEY_NOT_FOUND;
|
|
}
|
|
|
|
ScopedSECKEYPrivateKey privateKey(
|
|
PK11_FindKeyByAnyCert(userCert.get(), nullptr));
|
|
if (!privateKey) {
|
|
return KEY_NOT_FOUND;
|
|
}
|
|
|
|
// Export private key in PKCS#12 encrypted format, no password.
|
|
unsigned char pwstr[] = {0, 0};
|
|
SECItem password = {siBuffer, pwstr, sizeof(pwstr)};
|
|
ScopedSECKEYEncryptedPrivateKeyInfo encryptedPrivateKey(
|
|
PK11_ExportEncryptedPrivKeyInfo(privateKey->pkcs11Slot,
|
|
SEC_OID_PKCS12_V2_PBE_WITH_SHA1_AND_40_BIT_RC4, &password, privateKey, 1,
|
|
privateKey->wincx));
|
|
|
|
if (!encryptedPrivateKey) {
|
|
return KEY_NOT_FOUND;
|
|
}
|
|
|
|
// Decrypt into RSA private key.
|
|
//
|
|
// Generate key for PKCS#12 encryption, we use SHA1 with 1 iteration, as the
|
|
// parameters used in PK11_ExportEncryptedPrivKeyInfo() above.
|
|
// see: PKCS#12 v1.0, B.2.
|
|
//
|
|
uint8_t DSP[192] = {0};
|
|
memset(DSP, 0x01, 64); // Diversifier part, ID = 1 for decryption.
|
|
memset(DSP + 128, 0x00, 64); // Password part, no password.
|
|
|
|
uint8_t *S = &DSP[64]; // Salt part.
|
|
uint8_t *salt = encryptedPrivateKey->algorithm.parameters.data + 4;
|
|
int saltLength = (int)encryptedPrivateKey->algorithm.parameters.data[3];
|
|
if (saltLength <= 0) {
|
|
return SYSTEM_ERROR;
|
|
}
|
|
for (int i = 0; i < 64; i++) {
|
|
S[i] = salt[i % saltLength];
|
|
}
|
|
|
|
// Generate key by SHA-1
|
|
nsresult rv;
|
|
nsCOMPtr<nsICryptoHash> hash =
|
|
do_CreateInstance("@mozilla.org/security/hash;1", &rv);
|
|
if (NS_FAILED(rv)) {
|
|
return SYSTEM_ERROR;
|
|
}
|
|
|
|
rv = hash->Init(nsICryptoHash::SHA1);
|
|
if (NS_FAILED(rv)) {
|
|
return SYSTEM_ERROR;
|
|
}
|
|
|
|
rv = hash->Update(DSP, sizeof(DSP));
|
|
if (NS_FAILED(rv)) {
|
|
return SYSTEM_ERROR;
|
|
}
|
|
|
|
nsCString hashResult;
|
|
rv = hash->Finish(false, hashResult);
|
|
if (NS_FAILED(rv)) {
|
|
return SYSTEM_ERROR;
|
|
}
|
|
|
|
// First 40-bit as key for RC4.
|
|
uint8_t key[5];
|
|
memcpy(key, hashResult.get(), sizeof(key));
|
|
|
|
ScopedPK11SlotInfo slot(PK11_GetInternalSlot());
|
|
if (!slot) {
|
|
return SYSTEM_ERROR;
|
|
}
|
|
|
|
SECItem keyItem = {siBuffer, key, sizeof(key)};
|
|
ScopedPK11SymKey symKey(PK11_ImportSymKey(slot, CKM_RC4, PK11_OriginUnwrap,
|
|
CKA_DECRYPT, &keyItem, nullptr));
|
|
if (!symKey) {
|
|
return SYSTEM_ERROR;
|
|
}
|
|
|
|
// Get expected decrypted data size then allocate memory.
|
|
uint8_t *encryptedData = (uint8_t *)encryptedPrivateKey->encryptedData.data;
|
|
unsigned int encryptedDataLen = encryptedPrivateKey->encryptedData.len;
|
|
unsigned int decryptedDataLen = encryptedDataLen;
|
|
SECStatus srv = PK11_Decrypt(symKey, CKM_RC4, &keyItem, nullptr,
|
|
&decryptedDataLen, encryptedDataLen,
|
|
encryptedData, encryptedDataLen);
|
|
if (srv != SECSuccess) {
|
|
return SYSTEM_ERROR;
|
|
}
|
|
|
|
ScopedSECItem decryptedData(::SECITEM_AllocItem(nullptr, nullptr,
|
|
decryptedDataLen));
|
|
if (!decryptedData) {
|
|
return SYSTEM_ERROR;
|
|
}
|
|
|
|
// Decrypt by RC4.
|
|
srv = PK11_Decrypt(symKey, CKM_RC4, &keyItem, decryptedData->data,
|
|
&decryptedDataLen, decryptedData->len, encryptedData,
|
|
encryptedDataLen);
|
|
if (srv != SECSuccess) {
|
|
return SYSTEM_ERROR;
|
|
}
|
|
|
|
// Export key in PEM format.
|
|
char *keyPEM = PL_Base64Encode((const char *)decryptedData->data,
|
|
decryptedDataLen, nullptr);
|
|
|
|
if (!keyPEM) {
|
|
return SYSTEM_ERROR;
|
|
}
|
|
|
|
FormatCaData(keyPEM, strlen(keyPEM), "PRIVATE KEY", aKeyData, aKeyDataLength);
|
|
PL_strfree(keyPEM);
|
|
|
|
if (!(*aKeyData)) {
|
|
return SYSTEM_ERROR;
|
|
}
|
|
|
|
return SUCCESS;
|
|
}
|
|
|
|
ResponseCode getPublicKey(const char *aKeyName, const uint8_t **aKeyData,
|
|
size_t *aKeyDataLength)
|
|
{
|
|
*aKeyData = nullptr;
|
|
|
|
// Get corresponding user certificate nickname
|
|
char userCertName[128] = {0};
|
|
snprintf(userCertName, sizeof(userCertName) - 1, "WIFI_USERCERT_%s", aKeyName + 13);
|
|
|
|
// Get public key from user certificate.
|
|
ScopedCERTCertificate userCert(
|
|
CERT_FindCertByNickname(CERT_GetDefaultCertDB(), userCertName));
|
|
if (!userCert) {
|
|
return KEY_NOT_FOUND;
|
|
}
|
|
|
|
// Get public key.
|
|
ScopedSECKEYPublicKey publicKey(CERT_ExtractPublicKey(userCert));
|
|
if (!publicKey) {
|
|
return KEY_NOT_FOUND;
|
|
}
|
|
|
|
ScopedSECItem keyItem(PK11_DEREncodePublicKey(publicKey));
|
|
if (!keyItem) {
|
|
return KEY_NOT_FOUND;
|
|
}
|
|
|
|
size_t bufSize = keyItem->len;
|
|
char *buf = (char *)malloc(bufSize);
|
|
if (!buf) {
|
|
return SYSTEM_ERROR;
|
|
}
|
|
|
|
memcpy(buf, keyItem->data, bufSize);
|
|
*aKeyData = (const uint8_t *)buf;
|
|
*aKeyDataLength = bufSize;
|
|
|
|
return SUCCESS;
|
|
}
|
|
|
|
ResponseCode signData(const char *aKeyName, const uint8_t *data, size_t length,
|
|
uint8_t **out, size_t *outLength)
|
|
{
|
|
*out = nullptr;
|
|
// Get corresponding user certificate nickname
|
|
char userCertName[128] = {0};
|
|
snprintf(userCertName, sizeof(userCertName) - 1, "WIFI_USERCERT_%s", aKeyName + 13);
|
|
|
|
// Get private key from user certificate.
|
|
ScopedCERTCertificate userCert(
|
|
CERT_FindCertByNickname(CERT_GetDefaultCertDB(), userCertName));
|
|
if (!userCert) {
|
|
return KEY_NOT_FOUND;
|
|
}
|
|
|
|
ScopedSECKEYPrivateKey privateKey(
|
|
PK11_FindKeyByAnyCert(userCert.get(), nullptr));
|
|
if (!privateKey) {
|
|
return KEY_NOT_FOUND;
|
|
}
|
|
|
|
//
|
|
// Find hash data from incoming data.
|
|
//
|
|
// Incoming data might be padded by PKCS-1 format:
|
|
// 00 01 FF FF ... FF 00 || Hash of length 36
|
|
// If the padding part exists, we have to ignore them.
|
|
//
|
|
uint8_t *hash = (uint8_t *)data;
|
|
const size_t HASH_LENGTH = 36;
|
|
if (length < HASH_LENGTH) {
|
|
return VALUE_CORRUPTED;
|
|
}
|
|
if (hash[0] == 0x00 && hash[1] == 0x01 && hash[2] == 0xFF && hash[3] == 0xFF) {
|
|
hash += 4;
|
|
while (*hash == 0xFF) {
|
|
if (hash + HASH_LENGTH > data + length) {
|
|
return VALUE_CORRUPTED;
|
|
}
|
|
hash++;
|
|
}
|
|
if (*hash != 0x00) {
|
|
return VALUE_CORRUPTED;
|
|
}
|
|
hash++;
|
|
}
|
|
if (hash + HASH_LENGTH != data + length) {
|
|
return VALUE_CORRUPTED;
|
|
}
|
|
SECItem hashItem = {siBuffer, hash, HASH_LENGTH};
|
|
|
|
// Sign hash.
|
|
ScopedSECItem signItem(::SECITEM_AllocItem(nullptr, nullptr,
|
|
PK11_SignatureLen(privateKey)));
|
|
if (!signItem) {
|
|
return SYSTEM_ERROR;
|
|
}
|
|
|
|
SECStatus srv;
|
|
srv = PK11_Sign(privateKey, signItem.get(), &hashItem);
|
|
if (srv != SECSuccess) {
|
|
return SYSTEM_ERROR;
|
|
}
|
|
|
|
uint8_t *buf = (uint8_t *)malloc(signItem->len);
|
|
if (!buf) {
|
|
return SYSTEM_ERROR;
|
|
}
|
|
|
|
memcpy(buf, signItem->data, signItem->len);
|
|
*out = buf;
|
|
*outLength = signItem->len;
|
|
|
|
return SUCCESS;
|
|
}
|
|
|
|
bool
|
|
checkPermission(uid_t uid)
|
|
{
|
|
struct passwd *userInfo = getpwuid(uid);
|
|
for (const char **user = KEYSTORE_ALLOWED_USERS; *user; user++ ) {
|
|
if (!strcmp(*user, userInfo->pw_name)) {
|
|
return true;
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
//
|
|
// KeyStore
|
|
//
|
|
|
|
KeyStore::KeyStore()
|
|
: mShutdown(false)
|
|
{
|
|
MOZ_COUNT_CTOR(KeyStore);
|
|
::startKeyStoreService();
|
|
Listen();
|
|
}
|
|
|
|
KeyStore::~KeyStore()
|
|
{
|
|
nsNSSShutDownPreventionLock locker;
|
|
MOZ_COUNT_DTOR(KeyStore);
|
|
|
|
if (isAlreadyShutDown()) {
|
|
return;
|
|
}
|
|
|
|
shutdown(calledFromObject);
|
|
|
|
MOZ_ASSERT(!mListenSocket);
|
|
MOZ_ASSERT(!mStreamSocket);
|
|
}
|
|
|
|
void
|
|
KeyStore::Shutdown()
|
|
{
|
|
// We set mShutdown first, so that |OnDisconnect| won't try to reconnect.
|
|
mShutdown = true;
|
|
|
|
if (mStreamSocket) {
|
|
mStreamSocket->Close();
|
|
mStreamSocket = nullptr;
|
|
}
|
|
if (mListenSocket) {
|
|
mListenSocket->Close();
|
|
mListenSocket = nullptr;
|
|
}
|
|
}
|
|
|
|
void
|
|
KeyStore::Listen()
|
|
{
|
|
// We only allocate one |StreamSocket|, but re-use it for every connection.
|
|
if (mStreamSocket) {
|
|
mStreamSocket->Close();
|
|
} else {
|
|
mStreamSocket = new StreamSocket(this, STREAM_SOCKET);
|
|
}
|
|
|
|
if (!mListenSocket) {
|
|
// We only ever allocate one |ListenSocket|...
|
|
mListenSocket = new ListenSocket(this, LISTEN_SOCKET);
|
|
mListenSocket->Listen(new KeyStoreConnector(KEYSTORE_ALLOWED_USERS),
|
|
mStreamSocket);
|
|
} else {
|
|
// ... but keep it open.
|
|
mListenSocket->Listen(mStreamSocket);
|
|
}
|
|
|
|
ResetHandlerInfo();
|
|
}
|
|
|
|
void
|
|
KeyStore::ResetHandlerInfo()
|
|
{
|
|
mHandlerInfo.state = STATE_IDLE;
|
|
mHandlerInfo.command = 0;
|
|
mHandlerInfo.paramCount = 0;
|
|
mHandlerInfo.commandPattern = nullptr;
|
|
for (int i = 0; i < MAX_PARAM; i++) {
|
|
mHandlerInfo.param[i].length = 0;
|
|
memset(mHandlerInfo.param[i].data, 0, VALUE_SIZE);
|
|
}
|
|
}
|
|
|
|
bool
|
|
KeyStore::CheckSize(UnixSocketBuffer *aMessage, size_t aExpectSize)
|
|
{
|
|
return (aMessage->GetSize() >= aExpectSize);
|
|
}
|
|
|
|
ResponseCode
|
|
KeyStore::ReadCommand(UnixSocketBuffer *aMessage)
|
|
{
|
|
if (mHandlerInfo.state != STATE_IDLE) {
|
|
NS_WARNING("Wrong state in ReadCommand()!");
|
|
return SYSTEM_ERROR;
|
|
}
|
|
|
|
if (!CheckSize(aMessage, 1)) {
|
|
NS_WARNING("Data size error in ReadCommand()!");
|
|
return PROTOCOL_ERROR;
|
|
}
|
|
|
|
mHandlerInfo.command = *aMessage->GetData();
|
|
aMessage->Consume(1);
|
|
|
|
// Find corrsponding command pattern
|
|
const struct ProtocolCommand *command = commands;
|
|
while (command->command && command->command != mHandlerInfo.command) {
|
|
command++;
|
|
}
|
|
|
|
if (!command->command) {
|
|
NS_WARNING("Unsupported command!");
|
|
return PROTOCOL_ERROR;
|
|
}
|
|
|
|
// Get command pattern.
|
|
mHandlerInfo.commandPattern = command;
|
|
if (command->paramNum) {
|
|
// Read command parameter if needed.
|
|
mHandlerInfo.state = STATE_READ_PARAM_LEN;
|
|
} else {
|
|
mHandlerInfo.state = STATE_PROCESSING;
|
|
}
|
|
|
|
return SUCCESS;
|
|
}
|
|
|
|
ResponseCode
|
|
KeyStore::ReadLength(UnixSocketBuffer *aMessage)
|
|
{
|
|
if (mHandlerInfo.state != STATE_READ_PARAM_LEN) {
|
|
NS_WARNING("Wrong state in ReadLength()!");
|
|
return SYSTEM_ERROR;
|
|
}
|
|
|
|
if (!CheckSize(aMessage, 2)) {
|
|
NS_WARNING("Data size error in ReadLength()!");
|
|
return PROTOCOL_ERROR;
|
|
}
|
|
|
|
// Read length of command parameter.
|
|
// FIXME: Depends on endianess and (sizeof(unsigned short) == 2)
|
|
unsigned short dataLength;
|
|
memcpy(&dataLength, aMessage->GetData(), 2);
|
|
aMessage->Consume(2);
|
|
mHandlerInfo.param[mHandlerInfo.paramCount].length = ntohs(dataLength);
|
|
|
|
mHandlerInfo.state = STATE_READ_PARAM_DATA;
|
|
|
|
return SUCCESS;
|
|
}
|
|
|
|
ResponseCode
|
|
KeyStore::ReadData(UnixSocketBuffer *aMessage)
|
|
{
|
|
if (mHandlerInfo.state != STATE_READ_PARAM_DATA) {
|
|
NS_WARNING("Wrong state in ReadData()!");
|
|
return SYSTEM_ERROR;
|
|
}
|
|
|
|
if (!CheckSize(aMessage, mHandlerInfo.param[mHandlerInfo.paramCount].length)) {
|
|
NS_WARNING("Data size error in ReadData()!");
|
|
return PROTOCOL_ERROR;
|
|
}
|
|
|
|
// Read command parameter.
|
|
memcpy(mHandlerInfo.param[mHandlerInfo.paramCount].data,
|
|
aMessage->GetData(),
|
|
mHandlerInfo.param[mHandlerInfo.paramCount].length);
|
|
aMessage->Consume(mHandlerInfo.param[mHandlerInfo.paramCount].length);
|
|
mHandlerInfo.paramCount++;
|
|
|
|
if (mHandlerInfo.paramCount == mHandlerInfo.commandPattern->paramNum) {
|
|
mHandlerInfo.state = STATE_PROCESSING;
|
|
} else {
|
|
mHandlerInfo.state = STATE_READ_PARAM_LEN;
|
|
}
|
|
|
|
return SUCCESS;
|
|
}
|
|
|
|
// Status response
|
|
void
|
|
KeyStore::SendResponse(ResponseCode aResponse)
|
|
{
|
|
MOZ_ASSERT(mStreamSocket);
|
|
|
|
if (aResponse == NO_RESPONSE)
|
|
return;
|
|
|
|
uint8_t response = (uint8_t)aResponse;
|
|
UnixSocketRawData* data = new UnixSocketRawData((const void *)&response, 1);
|
|
mStreamSocket->SendSocketData(data);
|
|
}
|
|
|
|
// Data response
|
|
void
|
|
KeyStore::SendData(const uint8_t *aData, int aLength)
|
|
{
|
|
MOZ_ASSERT(mStreamSocket);
|
|
|
|
unsigned short dataLength = htons(aLength);
|
|
|
|
UnixSocketRawData* length = new UnixSocketRawData((const void *)&dataLength, 2);
|
|
mStreamSocket->SendSocketData(length);
|
|
|
|
UnixSocketRawData* data = new UnixSocketRawData((const void *)aData, aLength);
|
|
mStreamSocket->SendSocketData(data);
|
|
}
|
|
|
|
// |StreamSocketConsumer|, |ListenSocketConsumer|
|
|
|
|
void
|
|
KeyStore::ReceiveSocketData(int aIndex, nsAutoPtr<UnixSocketBuffer>& aMessage)
|
|
{
|
|
MOZ_ASSERT(NS_IsMainThread());
|
|
|
|
// Handle request.
|
|
ResponseCode result = SUCCESS;
|
|
while (aMessage->GetSize() ||
|
|
mHandlerInfo.state == STATE_PROCESSING) {
|
|
switch (mHandlerInfo.state) {
|
|
case STATE_IDLE:
|
|
result = ReadCommand(aMessage);
|
|
break;
|
|
case STATE_READ_PARAM_LEN:
|
|
result = ReadLength(aMessage);
|
|
break;
|
|
case STATE_READ_PARAM_DATA:
|
|
result = ReadData(aMessage);
|
|
break;
|
|
case STATE_PROCESSING:
|
|
if (mHandlerInfo.command == 'g') {
|
|
result = SYSTEM_ERROR;
|
|
|
|
nsNSSShutDownPreventionLock locker;
|
|
if (isAlreadyShutDown()) {
|
|
break;
|
|
}
|
|
|
|
// Get CA
|
|
const uint8_t *data;
|
|
size_t dataLength;
|
|
const char *name = (const char *)mHandlerInfo.param[0].data;
|
|
|
|
if (!strncmp(name, "WIFI_USERKEY_", 13)) {
|
|
result = getPrivateKey(name, &data, &dataLength);
|
|
} else {
|
|
result = getCertificate(name, &data, &dataLength);
|
|
}
|
|
if (result != SUCCESS) {
|
|
break;
|
|
}
|
|
|
|
SendResponse(SUCCESS);
|
|
SendData(data, (int)dataLength);
|
|
|
|
free((void *)data);
|
|
}
|
|
|
|
ResetHandlerInfo();
|
|
break;
|
|
}
|
|
|
|
if (result != SUCCESS) {
|
|
SendResponse(result);
|
|
ResetHandlerInfo();
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
KeyStore::OnConnectSuccess(int aIndex)
|
|
{
|
|
if (aIndex == STREAM_SOCKET) {
|
|
mShutdown = false;
|
|
}
|
|
}
|
|
|
|
void
|
|
KeyStore::OnConnectError(int aIndex)
|
|
{
|
|
if (mShutdown) {
|
|
return;
|
|
}
|
|
|
|
if (aIndex == STREAM_SOCKET) {
|
|
// Stream socket error; start listening again
|
|
Listen();
|
|
}
|
|
}
|
|
|
|
void
|
|
KeyStore::OnDisconnect(int aIndex)
|
|
{
|
|
if (mShutdown) {
|
|
return;
|
|
}
|
|
|
|
switch (aIndex) {
|
|
case LISTEN_SOCKET:
|
|
// Listen socket disconnected; start anew.
|
|
mListenSocket = nullptr;
|
|
Listen();
|
|
break;
|
|
case STREAM_SOCKET:
|
|
// Stream socket disconnected; start listening again.
|
|
Listen();
|
|
break;
|
|
}
|
|
}
|
|
|
|
} // namespace ipc
|
|
} // namespace mozilla
|