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import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

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Roy Tam 2018-01-19 03:59:58 +08:00
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465
mozglue/android/APKOpen.cpp Normal file
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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/. */
/*
* This custom library loading code is only meant to be called
* during initialization. As a result, it takes no special
* precautions to be threadsafe. Any of the library loading functions
* like mozload should not be available to other code.
*/
#include <jni.h>
#include <android/log.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/mman.h>
#include <sys/limits.h>
#include <errno.h>
#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include <fcntl.h>
#include <unistd.h>
#include <zlib.h>
#include "dlfcn.h"
#include "APKOpen.h"
#include <sys/time.h>
#include <sys/resource.h>
#include <sys/prctl.h>
#include "sqlite3.h"
#include "SQLiteBridge.h"
#include "NSSBridge.h"
#include "ElfLoader.h"
#include "application.ini.h"
#include "mozilla/TimeStamp.h"
#include "mozilla/UniquePtr.h"
#include "XREChildData.h"
/* Android headers don't define RUSAGE_THREAD */
#ifndef RUSAGE_THREAD
#define RUSAGE_THREAD 1
#endif
#ifndef RELEASE_OR_BETA
/* Official builds have the debuggable flag set to false, which disables
* the backtrace dumper from bionic. However, as it is useful for native
* crashes happening before the crash reporter is registered, re-enable
* it on non release builds (i.e. nightly and aurora).
* Using a constructor so that it is re-enabled as soon as libmozglue.so
* is loaded.
*/
__attribute__((constructor))
void make_dumpable() {
prctl(PR_SET_DUMPABLE, 1);
}
#endif
extern "C" {
/*
* To work around http://code.google.com/p/android/issues/detail?id=23203
* we don't link with the crt objects. In some configurations, this means
* a lack of the __dso_handle symbol because it is defined there, and
* depending on the android platform and ndk versions used, it may or may
* not be defined in libc.so. In the latter case, we fail to link. Defining
* it here as weak makes us provide the symbol when it's not provided by
* the crt objects, making the change transparent for future NDKs that
* would fix the original problem. On older NDKs, it is not a problem
* either because the way __dso_handle was used was already broken (and
* the custom linker works around it).
*/
NS_EXPORT __attribute__((weak)) void *__dso_handle;
}
typedef int mozglueresult;
enum StartupEvent {
#define mozilla_StartupTimeline_Event(ev, z) ev,
#include "StartupTimeline.h"
#undef mozilla_StartupTimeline_Event
MAX_STARTUP_EVENT_ID
};
using namespace mozilla;
static const int MAX_MAPPING_INFO = 32;
static mapping_info lib_mapping[MAX_MAPPING_INFO];
NS_EXPORT const struct mapping_info *
getLibraryMapping()
{
return lib_mapping;
}
void
JNI_Throw(JNIEnv* jenv, const char* classname, const char* msg)
{
__android_log_print(ANDROID_LOG_ERROR, "GeckoLibLoad", "Throw\n");
jclass cls = jenv->FindClass(classname);
if (cls == nullptr) {
__android_log_print(ANDROID_LOG_ERROR, "GeckoLibLoad", "Couldn't find exception class (or exception pending) %s\n", classname);
exit(FAILURE);
}
int rc = jenv->ThrowNew(cls, msg);
if (rc < 0) {
__android_log_print(ANDROID_LOG_ERROR, "GeckoLibLoad", "Error throwing exception %s\n", msg);
exit(FAILURE);
}
jenv->DeleteLocalRef(cls);
}
namespace {
JavaVM* sJavaVM;
pthread_t sJavaUiThread;
}
void
abortThroughJava(const char* msg)
{
struct sigaction sigact = {};
if (SEGVHandler::__wrap_sigaction(SIGSEGV, nullptr, &sigact)) {
return; // sigaction call failed.
}
Dl_info info = {};
if ((sigact.sa_flags & SA_SIGINFO) &&
__wrap_dladdr(reinterpret_cast<void*>(sigact.sa_sigaction), &info) &&
info.dli_fname && strstr(info.dli_fname, "libxul.so")) {
return; // Existing signal handler is in libxul (i.e. we have crash reporter).
}
JNIEnv* env = nullptr;
if (!sJavaVM || sJavaVM->AttachCurrentThreadAsDaemon(&env, nullptr) != JNI_OK) {
return;
}
if (!env || env->PushLocalFrame(2) != JNI_OK) {
return;
}
jclass loader = env->FindClass("org/mozilla/gecko/mozglue/GeckoLoader");
if (!loader) {
return;
}
jmethodID method = env->GetStaticMethodID(loader, "abort", "(Ljava/lang/String;)V");
jstring str = env->NewStringUTF(msg);
if (method && str) {
env->CallStaticVoidMethod(loader, method, str);
}
env->PopLocalFrame(nullptr);
}
NS_EXPORT pthread_t
getJavaUiThread()
{
return sJavaUiThread;
}
extern "C" NS_EXPORT void MOZ_JNICALL
Java_org_mozilla_gecko_GeckoThread_registerUiThread(JNIEnv*, jclass)
{
sJavaUiThread = pthread_self();
}
static void * xul_handle = nullptr;
#ifndef MOZ_FOLD_LIBS
static void * sqlite_handle = nullptr;
static void * nspr_handle = nullptr;
static void * plc_handle = nullptr;
#else
#define sqlite_handle nss_handle
#define nspr_handle nss_handle
#define plc_handle nss_handle
#endif
static void * nss_handle = nullptr;
template <typename T> inline void
xul_dlsym(const char *symbolName, T *value)
{
*value = (T) (uintptr_t) __wrap_dlsym(xul_handle, symbolName);
}
static int mapping_count = 0;
extern "C" void
report_mapping(char *name, void *base, uint32_t len, uint32_t offset)
{
if (mapping_count >= MAX_MAPPING_INFO)
return;
struct mapping_info *info = &lib_mapping[mapping_count++];
info->name = strdup(name);
info->base = (uintptr_t)base;
info->len = len;
info->offset = offset;
}
extern "C" void
delete_mapping(const char *name)
{
for (int pos = 0; pos < mapping_count; ++pos) {
struct mapping_info *info = &lib_mapping[pos];
if (!strcmp(info->name, name)) {
struct mapping_info *last = &lib_mapping[mapping_count - 1];
free(info->name);
*info = *last;
--mapping_count;
break;
}
}
}
static void*
dlopenAPKLibrary(const char* apkName, const char* libraryName)
{
#define APK_ASSETS_PATH "!/assets/" ANDROID_CPU_ARCH "/"
size_t filenameLength = strlen(apkName) +
sizeof(APK_ASSETS_PATH) + // includes \0 terminator
strlen(libraryName);
auto file = MakeUnique<char[]>(filenameLength);
snprintf(file.get(), filenameLength, "%s" APK_ASSETS_PATH "%s",
apkName, libraryName);
return __wrap_dlopen(file.get(), RTLD_GLOBAL | RTLD_LAZY);
#undef APK_ASSETS_PATH
}
static mozglueresult
loadGeckoLibs(const char *apkName)
{
TimeStamp t0 = TimeStamp::Now();
struct rusage usage1_thread, usage1;
getrusage(RUSAGE_THREAD, &usage1_thread);
getrusage(RUSAGE_SELF, &usage1);
xul_handle = dlopenAPKLibrary(apkName, "libxul.so");
if (!xul_handle) {
__android_log_print(ANDROID_LOG_ERROR, "GeckoLibLoad", "Couldn't get a handle to libxul!");
return FAILURE;
}
void (*XRE_StartupTimelineRecord)(int, TimeStamp);
xul_dlsym("XRE_StartupTimelineRecord", &XRE_StartupTimelineRecord);
TimeStamp t1 = TimeStamp::Now();
struct rusage usage2_thread, usage2;
getrusage(RUSAGE_THREAD, &usage2_thread);
getrusage(RUSAGE_SELF, &usage2);
#define RUSAGE_TIMEDIFF(u1, u2, field) \
((u2.ru_ ## field.tv_sec - u1.ru_ ## field.tv_sec) * 1000 + \
(u2.ru_ ## field.tv_usec - u1.ru_ ## field.tv_usec) / 1000)
__android_log_print(ANDROID_LOG_ERROR, "GeckoLibLoad", "Loaded libs in %fms total, %ldms(%ldms) user, %ldms(%ldms) system, %ld(%ld) faults",
(t1 - t0).ToMilliseconds(),
RUSAGE_TIMEDIFF(usage1_thread, usage2_thread, utime),
RUSAGE_TIMEDIFF(usage1, usage2, utime),
RUSAGE_TIMEDIFF(usage1_thread, usage2_thread, stime),
RUSAGE_TIMEDIFF(usage1, usage2, stime),
usage2_thread.ru_majflt - usage1_thread.ru_majflt,
usage2.ru_majflt - usage1.ru_majflt);
XRE_StartupTimelineRecord(LINKER_INITIALIZED, t0);
XRE_StartupTimelineRecord(LIBRARIES_LOADED, t1);
return SUCCESS;
}
static mozglueresult loadNSSLibs(const char *apkName);
static mozglueresult
loadSQLiteLibs(const char *apkName)
{
if (sqlite_handle)
return SUCCESS;
#ifdef MOZ_FOLD_LIBS
if (loadNSSLibs(apkName) != SUCCESS)
return FAILURE;
#else
sqlite_handle = dlopenAPKLibrary(apkName, "libmozsqlite3.so");
if (!sqlite_handle) {
__android_log_print(ANDROID_LOG_ERROR, "GeckoLibLoad", "Couldn't get a handle to libmozsqlite3!");
return FAILURE;
}
#endif
setup_sqlite_functions(sqlite_handle);
return SUCCESS;
}
static mozglueresult
loadNSSLibs(const char *apkName)
{
if (nss_handle && nspr_handle && plc_handle)
return SUCCESS;
nss_handle = dlopenAPKLibrary(apkName, "libnss3.so");
#ifndef MOZ_FOLD_LIBS
nspr_handle = dlopenAPKLibrary(apkName, "libnspr4.so");
plc_handle = dlopenAPKLibrary(apkName, "libplc4.so");
#endif
if (!nss_handle) {
__android_log_print(ANDROID_LOG_ERROR, "GeckoLibLoad", "Couldn't get a handle to libnss3!");
return FAILURE;
}
#ifndef MOZ_FOLD_LIBS
if (!nspr_handle) {
__android_log_print(ANDROID_LOG_ERROR, "GeckoLibLoad", "Couldn't get a handle to libnspr4!");
return FAILURE;
}
if (!plc_handle) {
__android_log_print(ANDROID_LOG_ERROR, "GeckoLibLoad", "Couldn't get a handle to libplc4!");
return FAILURE;
}
#endif
return setup_nss_functions(nss_handle, nspr_handle, plc_handle);
}
extern "C" NS_EXPORT void MOZ_JNICALL
Java_org_mozilla_gecko_mozglue_GeckoLoader_extractGeckoLibsNative(
JNIEnv *jenv, jclass jGeckoAppShellClass, jstring jApkName)
{
MOZ_ALWAYS_TRUE(!jenv->GetJavaVM(&sJavaVM));
const char* apkName = jenv->GetStringUTFChars(jApkName, nullptr);
if (apkName == nullptr) {
return;
}
// Extract and cache native lib to allow for efficient startup from cache.
void* handle = dlopenAPKLibrary(apkName, "libxul.so");
if (handle) {
__android_log_print(ANDROID_LOG_INFO, "GeckoLibLoad",
"Extracted and cached libxul.so.");
// We have extracted and cached the lib, we can close it now.
__wrap_dlclose(handle);
} else {
JNI_Throw(jenv, "java/lang/Exception", "Error extracting gecko libraries");
}
jenv->ReleaseStringUTFChars(jApkName, apkName);
}
extern "C" NS_EXPORT void MOZ_JNICALL
Java_org_mozilla_gecko_mozglue_GeckoLoader_loadGeckoLibsNative(JNIEnv *jenv, jclass jGeckoAppShellClass, jstring jApkName)
{
jenv->GetJavaVM(&sJavaVM);
const char* str;
// XXX: java doesn't give us true UTF8, we should figure out something
// better to do here
str = jenv->GetStringUTFChars(jApkName, nullptr);
if (str == nullptr)
return;
int res = loadGeckoLibs(str);
if (res != SUCCESS) {
JNI_Throw(jenv, "java/lang/Exception", "Error loading gecko libraries");
}
jenv->ReleaseStringUTFChars(jApkName, str);
}
extern "C" NS_EXPORT void MOZ_JNICALL
Java_org_mozilla_gecko_mozglue_GeckoLoader_loadSQLiteLibsNative(JNIEnv *jenv, jclass jGeckoAppShellClass, jstring jApkName) {
const char* str;
// XXX: java doesn't give us true UTF8, we should figure out something
// better to do here
str = jenv->GetStringUTFChars(jApkName, nullptr);
if (str == nullptr)
return;
__android_log_print(ANDROID_LOG_ERROR, "GeckoLibLoad", "Load sqlite start\n");
mozglueresult rv = loadSQLiteLibs(str);
if (rv != SUCCESS) {
JNI_Throw(jenv, "java/lang/Exception", "Error loading sqlite libraries");
}
__android_log_print(ANDROID_LOG_ERROR, "GeckoLibLoad", "Load sqlite done\n");
jenv->ReleaseStringUTFChars(jApkName, str);
}
extern "C" NS_EXPORT void MOZ_JNICALL
Java_org_mozilla_gecko_mozglue_GeckoLoader_loadNSSLibsNative(JNIEnv *jenv, jclass jGeckoAppShellClass, jstring jApkName) {
const char* str;
// XXX: java doesn't give us true UTF8, we should figure out something
// better to do here
str = jenv->GetStringUTFChars(jApkName, nullptr);
if (str == nullptr)
return;
__android_log_print(ANDROID_LOG_ERROR, "GeckoLibLoad", "Load nss start\n");
mozglueresult rv = loadNSSLibs(str);
if (rv != SUCCESS) {
JNI_Throw(jenv, "java/lang/Exception", "Error loading nss libraries");
}
__android_log_print(ANDROID_LOG_ERROR, "GeckoLibLoad", "Load nss done\n");
jenv->ReleaseStringUTFChars(jApkName, str);
}
typedef void (*GeckoStart_t)(JNIEnv*, char*, const nsXREAppData*);
extern "C" NS_EXPORT void MOZ_JNICALL
Java_org_mozilla_gecko_mozglue_GeckoLoader_nativeRun(JNIEnv *jenv, jclass jc, jstring jargs)
{
GeckoStart_t GeckoStart;
xul_dlsym("GeckoStart", &GeckoStart);
if (GeckoStart == nullptr)
return;
// XXX: java doesn't give us true UTF8, we should figure out something
// better to do here
int len = jenv->GetStringUTFLength(jargs);
// GeckoStart needs to write in the args buffer, so we need a copy.
char *args = (char *) malloc(len + 1);
jenv->GetStringUTFRegion(jargs, 0, len, args);
args[len] = '\0';
ElfLoader::Singleton.ExpectShutdown(false);
GeckoStart(jenv, args, &sAppData);
ElfLoader::Singleton.ExpectShutdown(true);
free(args);
}
typedef int GeckoProcessType;
extern "C" NS_EXPORT mozglueresult
ChildProcessInit(int argc, char* argv[])
{
int i;
for (i = 0; i < (argc - 1); i++) {
if (strcmp(argv[i], "-greomni"))
continue;
i = i + 1;
break;
}
if (loadNSSLibs(argv[i]) != SUCCESS) {
return FAILURE;
}
if (loadSQLiteLibs(argv[i]) != SUCCESS) {
return FAILURE;
}
if (loadGeckoLibs(argv[i]) != SUCCESS) {
return FAILURE;
}
void (*fXRE_SetProcessType)(char*);
xul_dlsym("XRE_SetProcessType", &fXRE_SetProcessType);
mozglueresult (*fXRE_InitChildProcess)(int, char**, void*);
xul_dlsym("XRE_InitChildProcess", &fXRE_InitChildProcess);
fXRE_SetProcessType(argv[--argc]);
XREChildData childData;
return fXRE_InitChildProcess(argc, argv, &childData);
}

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mozglue/android/APKOpen.h Normal file
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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/. */
#ifndef APKOpen_h
#define APKOpen_h
#include <jni.h>
#include <pthread.h>
#ifndef NS_EXPORT
#define NS_EXPORT __attribute__ ((visibility("default")))
#endif
struct mapping_info {
char * name;
uintptr_t base;
size_t len;
size_t offset;
};
NS_EXPORT const struct mapping_info * getLibraryMapping();
NS_EXPORT void abortThroughJava(const char* msg);
NS_EXPORT pthread_t getJavaUiThread();
static const int SUCCESS = 0;
static const int FAILURE = 1;
void JNI_Throw(JNIEnv* jenv, const char* classname, const char* msg);
// Bug 1207642 - Work around Dalvik bug by realigning stack on JNI entry
#ifndef MOZ_JNICALL
# ifdef __i386__
# define MOZ_JNICALL JNICALL __attribute__((force_align_arg_pointer))
# else
# define MOZ_JNICALL JNICALL
# endif
#endif
#endif /* APKOpen_h */

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mozglue/android/NSSBridge.cpp Normal file
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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/. */
#include <stdlib.h>
#include "dlfcn.h"
#include "NSSBridge.h"
#include "APKOpen.h"
#ifdef ANDROID
#include <jni.h>
#include <android/log.h>
#endif
#include "ElfLoader.h"
#ifdef DEBUG
#define LOG(x...) __android_log_print(ANDROID_LOG_INFO, "GeckoJNI", x)
#else
#define LOG(x...)
#endif
static bool initialized = false;
#define NSS_WRAPPER_INT(name) name ## _t f_ ## name;
NSS_WRAPPER_INT(NSS_Initialize)
NSS_WRAPPER_INT(NSS_Shutdown)
NSS_WRAPPER_INT(SECITEM_ZfreeItem)
NSS_WRAPPER_INT(PK11SDR_Encrypt)
NSS_WRAPPER_INT(PK11SDR_Decrypt)
NSS_WRAPPER_INT(PK11_GetInternalKeySlot)
NSS_WRAPPER_INT(PK11_NeedUserInit)
NSS_WRAPPER_INT(PK11_InitPin)
NSS_WRAPPER_INT(PR_ErrorToString)
NSS_WRAPPER_INT(PR_GetError)
NSS_WRAPPER_INT(PR_Free)
NSS_WRAPPER_INT(PL_Base64Encode)
NSS_WRAPPER_INT(PL_Base64Decode)
NSS_WRAPPER_INT(PL_strfree)
int
setup_nss_functions(void *nss_handle,
void *nspr_handle,
void *plc_handle)
{
if (nss_handle == nullptr || nspr_handle == nullptr || plc_handle == nullptr) {
LOG("Missing handle\n");
return FAILURE;
}
#define GETFUNC(name) f_ ## name = (name ## _t) (uintptr_t) __wrap_dlsym(nss_handle, #name); \
if (!f_ ##name) { __android_log_print(ANDROID_LOG_ERROR, "GeckoJNI", "missing %s", #name); return FAILURE; }
GETFUNC(NSS_Initialize);
GETFUNC(NSS_Shutdown);
GETFUNC(PK11SDR_Encrypt);
GETFUNC(PK11SDR_Decrypt);
GETFUNC(PK11_GetInternalKeySlot);
GETFUNC(PK11_NeedUserInit);
GETFUNC(PK11_InitPin);
GETFUNC(SECITEM_ZfreeItem);
#undef GETFUNC
#define NSPRFUNC(name) f_ ## name = (name ## _t) (uintptr_t) __wrap_dlsym(nspr_handle, #name); \
if (!f_ ##name) { __android_log_print(ANDROID_LOG_ERROR, "GeckoJNI", "missing %s", #name); return FAILURE; }
NSPRFUNC(PR_ErrorToString);
NSPRFUNC(PR_GetError);
NSPRFUNC(PR_Free);
#undef NSPRFUNC
#define PLCFUNC(name) f_ ## name = (name ## _t) (uintptr_t) __wrap_dlsym(plc_handle, #name); \
if (!f_ ##name) { __android_log_print(ANDROID_LOG_ERROR, "GeckoJNI", "missing %s", #name); return FAILURE; }
PLCFUNC(PL_Base64Encode);
PLCFUNC(PL_Base64Decode);
PLCFUNC(PL_strfree);
#undef PLCFUNC
return SUCCESS;
}
/* Throws the current NSS error. */
static void
throwError(JNIEnv* jenv, const char * funcString) {
char *msg;
PRErrorCode perr = f_PR_GetError();
char * errString = f_PR_ErrorToString(perr, 0);
asprintf(&msg, "%s returned error %d: %s\n", funcString, perr, errString);
LOG("Throwing error: %s\n", msg);
JNI_Throw(jenv, "java/lang/Exception", msg);
free(msg);
LOG("Error thrown\n");
}
extern "C" NS_EXPORT jstring MOZ_JNICALL
Java_org_mozilla_gecko_NSSBridge_nativeEncrypt(JNIEnv* jenv, jclass,
jstring jPath,
jstring jValue)
{
jstring ret = jenv->NewStringUTF("");
const char* path;
path = jenv->GetStringUTFChars(jPath, nullptr);
const char* value;
value = jenv->GetStringUTFChars(jValue, nullptr);
char* result;
SECStatus rv = doCrypto(jenv, path, value, &result, true);
if (rv == SECSuccess) {
ret = jenv->NewStringUTF(result);
free(result);
}
jenv->ReleaseStringUTFChars(jValue, value);
jenv->ReleaseStringUTFChars(jPath, path);
return ret;
}
extern "C" NS_EXPORT jstring MOZ_JNICALL
Java_org_mozilla_gecko_NSSBridge_nativeDecrypt(JNIEnv* jenv, jclass,
jstring jPath,
jstring jValue)
{
jstring ret = jenv->NewStringUTF("");
const char* path;
path = jenv->GetStringUTFChars(jPath, nullptr);
const char* value;
value = jenv->GetStringUTFChars(jValue, nullptr);
char* result;
SECStatus rv = doCrypto(jenv, path, value, &result, false);
if (rv == SECSuccess) {
ret = jenv->NewStringUTF(result);
free(result);
}
jenv->ReleaseStringUTFChars(jValue, value);
jenv->ReleaseStringUTFChars(jPath, path);
return ret;
}
/* Encrypts or decrypts a string. result should be freed with free() when done */
SECStatus
doCrypto(JNIEnv* jenv, const char *path, const char *value, char** result, bool encrypt)
{
SECStatus rv;
PK11SlotInfo *slot;
if (!initialized) {
LOG("Initialize crypto in %s\n", path);
rv = f_NSS_Initialize(path, "", "", "secmod.db", NSS_INIT_NOROOTINIT);
if (rv != SECSuccess) {
throwError(jenv, "NSS_Initialize");
return rv;
}
initialized = true;
}
slot = f_PK11_GetInternalKeySlot();
if (!slot) {
throwError(jenv, "PK11_GetInternalKeySlot");
return SECFailure;
}
if (f_PK11_NeedUserInit(slot)) {
LOG("Initializing key3.db with default blank password.\n");
rv = f_PK11_InitPin(slot, nullptr, nullptr);
if (rv != SECSuccess) {
throwError(jenv, "PK11_InitPin");
return rv;
}
}
SECItem request;
SECItem reply;
reply.data = 0;
reply.len = 0;
if (encrypt) {
// This can print sensitive data. Uncomment if you need it.
// LOG("Encrypting: %s\n", value);
request.data = (unsigned char*)value;
request.len = strlen(value);
SECItem keyid;
keyid.data = 0;
keyid.len = 0;
rv = f_PK11SDR_Encrypt(&keyid, &request, &reply, nullptr);
if (rv != SECSuccess) {
throwError(jenv, "PK11SDR_Encrypt");
goto done;
}
rv = encode(reply.data, reply.len, result);
if (rv != SECSuccess) {
throwError(jenv, "encode");
goto done;
}
LOG("Encrypted: %s\n", *result);
} else {
LOG("Decoding: %s\n", value);
rv = decode(value, &request.data, (int32_t*)&request.len);
if (rv != SECSuccess) {
throwError(jenv, "decode");
return rv;
}
rv = f_PK11SDR_Decrypt(&request, &reply, nullptr);
if (rv != SECSuccess) {
throwError(jenv, "PK11SDR_Decrypt");
goto done;
}
*result = (char *)malloc(reply.len+1);
strncpy(*result, (char *)reply.data, reply.len);
(*result)[reply.len] = '\0';
// This can print sensitive data. Uncomment if you need it.
// LOG("Decoded %i letters: %s\n", reply.len, *result);
free(request.data);
}
done:
f_SECITEM_ZfreeItem(&reply, false);
return rv;
}
/*
* Base64 encodes the data passed in. The caller must deallocate _retval using free();
*/
SECStatus
encode(const unsigned char *data, int32_t dataLen, char **_retval)
{
SECStatus rv = SECSuccess;
char *encoded = f_PL_Base64Encode((const char *)data, dataLen, nullptr);
if (!encoded)
rv = SECFailure;
if (!*encoded)
rv = SECFailure;
if (rv == SECSuccess) {
*_retval = (char *)malloc(strlen(encoded)+1);
strcpy(*_retval, encoded);
}
if (encoded) {
f_PR_Free(encoded);
}
return rv;
}
/*
* Base64 decodes the data passed in. The caller must deallocate result using free();
*/
SECStatus
decode(const char *data, unsigned char **result, int32_t *length)
{
SECStatus rv = SECSuccess;
uint32_t len = strlen(data);
int adjust = 0;
/* Compute length adjustment */
if (len > 0 && data[len-1] == '=') {
adjust++;
if (data[len-2] == '=') adjust++;
}
char *decoded;
decoded = f_PL_Base64Decode(data, len, nullptr);
if (!decoded) {
return SECFailure;
}
if (!*decoded) {
return SECFailure;
}
*length = (len*3)/4 - adjust;
LOG("Decoded %i chars into %i chars\n", len, *length);
*result = (unsigned char*)malloc((size_t)len);
if (!*result) {
rv = SECFailure;
} else {
memcpy((char*)*result, decoded, len);
}
f_PR_Free(decoded);
return rv;
}

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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/. */
#ifndef NSSBridge_h
#define NSSBridge_h
#include "nss.h"
#include "pk11func.h"
#include "pk11sdr.h"
#include "seccomon.h"
#include "secitem.h"
#include "secmodt.h"
#include "prerror.h"
#include "plstr.h"
#include "prmem.h"
#include <jni.h>
int setup_nss_functions(void *nss_handle, void *nssutil_handle, void *plc_handle);
#define NSS_WRAPPER(name, return_type, args...) \
typedef return_type (*name ## _t)(args); \
extern name ## _t f_ ## name;
NSS_WRAPPER(NSS_Initialize, SECStatus, const char*, const char*, const char*, const char*, uint32_t)
NSS_WRAPPER(NSS_Shutdown, void, void)
NSS_WRAPPER(PK11SDR_Encrypt, SECStatus, SECItem *, SECItem *, SECItem *, void *)
NSS_WRAPPER(PK11SDR_Decrypt, SECStatus, SECItem *, SECItem *, void *)
NSS_WRAPPER(SECITEM_ZfreeItem, void, SECItem*, PRBool)
NSS_WRAPPER(PR_ErrorToString, char *, PRErrorCode, PRLanguageCode)
NSS_WRAPPER(PR_GetError, PRErrorCode, void)
NSS_WRAPPER(PR_Free, PRErrorCode, char *)
NSS_WRAPPER(PL_Base64Encode, char*, const char*, uint32_t, char*)
NSS_WRAPPER(PL_Base64Decode, char*, const char*, uint32_t, char*)
NSS_WRAPPER(PL_strfree, void, char*)
NSS_WRAPPER(PK11_GetInternalKeySlot, PK11SlotInfo *, void)
NSS_WRAPPER(PK11_NeedUserInit, PRBool, PK11SlotInfo *)
NSS_WRAPPER(PK11_InitPin, SECStatus, PK11SlotInfo*, const char*, const char*)
bool setPassword(PK11SlotInfo *slot);
SECStatus doCrypto(JNIEnv* jenv, const char *path, const char *value, char** result, bool doEncrypt);
SECStatus encode(const unsigned char *data, int32_t dataLen, char **_retval);
SECStatus decode(const char *data, unsigned char **result, int32_t * _retval);
#endif /* NSS_h */

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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/. */
#include "NativeCrypto.h"
#include "APKOpen.h"
#include <jni.h>
#include <errno.h>
#include <stdlib.h>
#include <inttypes.h>
#include "mozilla/SHA1.h"
#include "pbkdf2_sha256.h"
/**
* Helper function to invoke native PBKDF2 function with JNI
* arguments.
*/
extern "C" JNIEXPORT jbyteArray MOZ_JNICALL Java_org_mozilla_gecko_background_nativecode_NativeCrypto_pbkdf2SHA256
(JNIEnv *env, jclass jc, jbyteArray jpassword, jbyteArray jsalt, jint c, jint dkLen) {
if (dkLen < 0) {
env->ThrowNew(env->FindClass("java/lang/IllegalArgumentException"),
"dkLen should not be less than 0");
return nullptr;
}
jbyte *password = env->GetByteArrayElements(jpassword, nullptr);
size_t passwordLen = env->GetArrayLength(jpassword);
jbyte *salt = env->GetByteArrayElements(jsalt, nullptr);
size_t saltLen = env->GetArrayLength(jsalt);
uint8_t hashResult[dkLen];
PBKDF2_SHA256((uint8_t *) password, passwordLen, (uint8_t *) salt, saltLen,
(uint64_t) c, hashResult, (size_t) dkLen);
env->ReleaseByteArrayElements(jpassword, password, JNI_ABORT);
env->ReleaseByteArrayElements(jsalt, salt, JNI_ABORT);
jbyteArray out = env->NewByteArray(dkLen);
if (out == nullptr) {
return nullptr;
}
env->SetByteArrayRegion(out, 0, dkLen, (jbyte *) hashResult);
return out;
}
using namespace mozilla;
/**
* Helper function to invoke native SHA-1 function with JNI arguments.
*/
extern "C" JNIEXPORT jbyteArray MOZ_JNICALL Java_org_mozilla_gecko_background_nativecode_NativeCrypto_sha1
(JNIEnv *env, jclass jc, jbyteArray jstr) {
jbyte *str = env->GetByteArrayElements(jstr, nullptr);
size_t strLen = env->GetArrayLength(jstr);
SHA1Sum sha1;
SHA1Sum::Hash hashResult;
sha1.update((void *) str, (uint32_t) strLen);
sha1.finish(hashResult);
env->ReleaseByteArrayElements(jstr, str, JNI_ABORT);
jbyteArray out = env->NewByteArray(SHA1Sum::kHashSize);
if (out == nullptr) {
return nullptr;
}
env->SetByteArrayRegion(out, 0, SHA1Sum::kHashSize, (jbyte *) hashResult);
return out;
}
/**
* Helper function to invoke native SHA-256 init with JNI arguments.
*/
extern "C" JNIEXPORT jbyteArray MOZ_JNICALL Java_org_mozilla_gecko_background_nativecode_NativeCrypto_sha256init
(JNIEnv *env, jclass jc) {
jbyteArray out = env->NewByteArray(sizeof(SHA256_CTX));
if (nullptr == out) {
return nullptr;
}
SHA256_CTX *shaContext = (SHA256_CTX*)env->GetByteArrayElements(out, nullptr);
SHA256_Init(shaContext);
env->ReleaseByteArrayElements(out, (jbyte*)shaContext, 0);
return out;
}
/**
* Helper function to invoke native SHA-256 update with JNI arguments.
*/
extern "C" JNIEXPORT void MOZ_JNICALL Java_org_mozilla_gecko_background_nativecode_NativeCrypto_sha256update
(JNIEnv *env, jclass jc, jbyteArray jctx, jbyteArray jstr, jint len) {
jbyte *str = env->GetByteArrayElements(jstr, nullptr);
SHA256_CTX *shaContext = (SHA256_CTX*)env->GetByteArrayElements(jctx, nullptr);
SHA256_Update(shaContext, (void*)str, (size_t) len);
env->ReleaseByteArrayElements(jstr, str, JNI_ABORT);
env->ReleaseByteArrayElements(jctx, (jbyte*)shaContext, 0);
return;
}
/**
* Helper function to invoke native SHA-256 finalize with JNI arguments.
*/
extern "C" JNIEXPORT jbyteArray MOZ_JNICALL Java_org_mozilla_gecko_background_nativecode_NativeCrypto_sha256finalize
(JNIEnv *env, jclass jc, jbyteArray jctx) {
SHA256_CTX *shaContext = (SHA256_CTX*)env->GetByteArrayElements(jctx, nullptr);
unsigned char* digest = new unsigned char[32];
SHA256_Final(digest, shaContext);
env->ReleaseByteArrayElements(jctx, (jbyte*)shaContext, JNI_ABORT);
jbyteArray out = env->NewByteArray(32);
if (nullptr != out) {
env->SetByteArrayRegion(out, 0, 32, (jbyte*)digest);
}
delete[] digest;
return out;
}

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/* DO NOT EDIT THIS FILE - it is machine generated */
#include <jni.h>
/* Header for class org_mozilla_gecko_background_nativecode_NativeCrypto */
#ifndef _Included_org_mozilla_gecko_background_nativecode_NativeCrypto
#define _Included_org_mozilla_gecko_background_nativecode_NativeCrypto
#ifdef __cplusplus
extern "C" {
#endif
/*
* Class: org_mozilla_gecko_background_nativecode_NativeCrypto
* Method: pbkdf2SHA256
* Signature: ([B[BII)[B
*/
JNIEXPORT jbyteArray JNICALL Java_org_mozilla_gecko_background_nativecode_NativeCrypto_pbkdf2SHA256
(JNIEnv *, jclass, jbyteArray, jbyteArray, jint, jint);
/*
* Class: org_mozilla_gecko_background_nativecode_NativeCrypto
* Method: sha1
* Signature: ([B)[B
*/
JNIEXPORT jbyteArray JNICALL Java_org_mozilla_gecko_background_nativecode_NativeCrypto_sha1
(JNIEnv *, jclass, jbyteArray);
/*
* Class: org_mozilla_gecko_background_nativecode_NativeCrypto
* Method: sha256init
* Signature: ()[B
*/
JNIEXPORT jbyteArray JNICALL Java_org_mozilla_gecko_background_nativecode_NativeCrypto_sha256init
(JNIEnv *, jclass);
/*
* Class: org_mozilla_gecko_background_nativecode_NativeCrypto
* Method: sha256update
* Signature: ([B[B)V
*/
JNIEXPORT void JNICALL Java_org_mozilla_gecko_background_nativecode_NativeCrypto_sha256update
(JNIEnv *, jclass, jbyteArray, jbyteArray, jint);
/*
* Class: org_mozilla_gecko_background_nativecode_NativeCrypto
* Method: sha256finalize
* Signature: ([B)[B
*/
JNIEXPORT jbyteArray JNICALL Java_org_mozilla_gecko_background_nativecode_NativeCrypto_sha256finalize
(JNIEnv *, jclass, jbyteArray);
#ifdef __cplusplus
}
#endif
#endif

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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/. */
#include <stdlib.h>
#include <stdio.h>
#include <jni.h>
#include <android/log.h>
#include "dlfcn.h"
#include "APKOpen.h"
#include "ElfLoader.h"
#include "SQLiteBridge.h"
#ifdef DEBUG
#define LOG(x...) __android_log_print(ANDROID_LOG_INFO, "GeckoJNI", x)
#else
#define LOG(x...)
#endif
#define SQLITE_WRAPPER_INT(name) name ## _t f_ ## name;
SQLITE_WRAPPER_INT(sqlite3_open)
SQLITE_WRAPPER_INT(sqlite3_errmsg)
SQLITE_WRAPPER_INT(sqlite3_prepare_v2)
SQLITE_WRAPPER_INT(sqlite3_bind_parameter_count)
SQLITE_WRAPPER_INT(sqlite3_bind_null)
SQLITE_WRAPPER_INT(sqlite3_bind_text)
SQLITE_WRAPPER_INT(sqlite3_step)
SQLITE_WRAPPER_INT(sqlite3_column_count)
SQLITE_WRAPPER_INT(sqlite3_finalize)
SQLITE_WRAPPER_INT(sqlite3_close)
SQLITE_WRAPPER_INT(sqlite3_column_name)
SQLITE_WRAPPER_INT(sqlite3_column_type)
SQLITE_WRAPPER_INT(sqlite3_column_blob)
SQLITE_WRAPPER_INT(sqlite3_column_bytes)
SQLITE_WRAPPER_INT(sqlite3_column_text)
SQLITE_WRAPPER_INT(sqlite3_changes)
SQLITE_WRAPPER_INT(sqlite3_last_insert_rowid)
void setup_sqlite_functions(void *sqlite_handle)
{
#define GETFUNC(name) f_ ## name = (name ## _t) (uintptr_t) __wrap_dlsym(sqlite_handle, #name)
GETFUNC(sqlite3_open);
GETFUNC(sqlite3_errmsg);
GETFUNC(sqlite3_prepare_v2);
GETFUNC(sqlite3_bind_parameter_count);
GETFUNC(sqlite3_bind_null);
GETFUNC(sqlite3_bind_text);
GETFUNC(sqlite3_step);
GETFUNC(sqlite3_column_count);
GETFUNC(sqlite3_finalize);
GETFUNC(sqlite3_close);
GETFUNC(sqlite3_column_name);
GETFUNC(sqlite3_column_type);
GETFUNC(sqlite3_column_blob);
GETFUNC(sqlite3_column_bytes);
GETFUNC(sqlite3_column_text);
GETFUNC(sqlite3_changes);
GETFUNC(sqlite3_last_insert_rowid);
#undef GETFUNC
}
static bool initialized = false;
static jclass stringClass;
static jclass objectClass;
static jclass byteBufferClass;
static jclass cursorClass;
static jmethodID jByteBufferAllocateDirect;
static jmethodID jCursorConstructor;
static jmethodID jCursorAddRow;
static jobject sqliteInternalCall(JNIEnv* jenv, sqlite3 *db, jstring jQuery,
jobjectArray jParams, jlongArray jQueryRes);
static void throwSqliteException(JNIEnv* jenv, const char* aFormat, ...)
{
va_list ap;
va_start(ap, aFormat);
char* msg = nullptr;
vasprintf(&msg, aFormat, ap);
LOG("Error in SQLiteBridge: %s\n", msg);
JNI_Throw(jenv, "org/mozilla/gecko/sqlite/SQLiteBridgeException", msg);
free(msg);
va_end(ap);
}
static void
JNI_Setup(JNIEnv* jenv)
{
if (initialized) return;
jclass lObjectClass = jenv->FindClass("java/lang/Object");
jclass lStringClass = jenv->FindClass("java/lang/String");
jclass lByteBufferClass = jenv->FindClass("java/nio/ByteBuffer");
jclass lCursorClass = jenv->FindClass("org/mozilla/gecko/sqlite/MatrixBlobCursor");
if (lStringClass == nullptr
|| lObjectClass == nullptr
|| lByteBufferClass == nullptr
|| lCursorClass == nullptr) {
throwSqliteException(jenv, "FindClass error");
return;
}
// Those are only local references. Make them global so they work
// across calls and threads.
objectClass = (jclass)jenv->NewGlobalRef(lObjectClass);
stringClass = (jclass)jenv->NewGlobalRef(lStringClass);
byteBufferClass = (jclass)jenv->NewGlobalRef(lByteBufferClass);
cursorClass = (jclass)jenv->NewGlobalRef(lCursorClass);
if (stringClass == nullptr || objectClass == nullptr
|| byteBufferClass == nullptr
|| cursorClass == nullptr) {
throwSqliteException(jenv, "NewGlobalRef error");
return;
}
// public static ByteBuffer allocateDirect(int capacity)
jByteBufferAllocateDirect =
jenv->GetStaticMethodID(byteBufferClass, "allocateDirect", "(I)Ljava/nio/ByteBuffer;");
// new MatrixBlobCursor(String [])
jCursorConstructor =
jenv->GetMethodID(cursorClass, "<init>", "([Ljava/lang/String;)V");
// public void addRow (Object[] columnValues)
jCursorAddRow =
jenv->GetMethodID(cursorClass, "addRow", "([Ljava/lang/Object;)V");
if (jByteBufferAllocateDirect == nullptr
|| jCursorConstructor == nullptr
|| jCursorAddRow == nullptr) {
throwSqliteException(jenv, "GetMethodId error");
return;
}
initialized = true;
}
extern "C" NS_EXPORT jobject MOZ_JNICALL
Java_org_mozilla_gecko_sqlite_SQLiteBridge_sqliteCall(JNIEnv* jenv, jclass,
jstring jDb,
jstring jQuery,
jobjectArray jParams,
jlongArray jQueryRes)
{
JNI_Setup(jenv);
int rc;
jobject jCursor = nullptr;
const char* dbPath;
sqlite3 *db;
dbPath = jenv->GetStringUTFChars(jDb, nullptr);
rc = f_sqlite3_open(dbPath, &db);
jenv->ReleaseStringUTFChars(jDb, dbPath);
if (rc != SQLITE_OK) {
throwSqliteException(jenv,
"Can't open database: %s", f_sqlite3_errmsg(db));
f_sqlite3_close(db); // close db even if open failed
return nullptr;
}
jCursor = sqliteInternalCall(jenv, db, jQuery, jParams, jQueryRes);
f_sqlite3_close(db);
return jCursor;
}
extern "C" NS_EXPORT jobject MOZ_JNICALL
Java_org_mozilla_gecko_sqlite_SQLiteBridge_sqliteCallWithDb(JNIEnv* jenv, jclass,
jlong jDb,
jstring jQuery,
jobjectArray jParams,
jlongArray jQueryRes)
{
JNI_Setup(jenv);
jobject jCursor = nullptr;
sqlite3 *db = (sqlite3*)jDb;
jCursor = sqliteInternalCall(jenv, db, jQuery, jParams, jQueryRes);
return jCursor;
}
extern "C" NS_EXPORT jlong MOZ_JNICALL
Java_org_mozilla_gecko_sqlite_SQLiteBridge_openDatabase(JNIEnv* jenv, jclass,
jstring jDb)
{
JNI_Setup(jenv);
int rc;
const char* dbPath;
sqlite3 *db;
dbPath = jenv->GetStringUTFChars(jDb, nullptr);
rc = f_sqlite3_open(dbPath, &db);
jenv->ReleaseStringUTFChars(jDb, dbPath);
if (rc != SQLITE_OK) {
throwSqliteException(jenv,
"Can't open database: %s", f_sqlite3_errmsg(db));
f_sqlite3_close(db); // close db even if open failed
return 0;
}
return (jlong)db;
}
extern "C" NS_EXPORT void MOZ_JNICALL
Java_org_mozilla_gecko_sqlite_SQLiteBridge_closeDatabase(JNIEnv* jenv, jclass,
jlong jDb)
{
JNI_Setup(jenv);
sqlite3 *db = (sqlite3*)jDb;
f_sqlite3_close(db);
}
static jobject
sqliteInternalCall(JNIEnv* jenv,
sqlite3 *db,
jstring jQuery,
jobjectArray jParams,
jlongArray jQueryRes)
{
JNI_Setup(jenv);
jobject jCursor = nullptr;
jsize numPars = 0;
const char *pzTail;
sqlite3_stmt *ppStmt;
int rc;
const char* queryStr;
queryStr = jenv->GetStringUTFChars(jQuery, nullptr);
rc = f_sqlite3_prepare_v2(db, queryStr, -1, &ppStmt, &pzTail);
if (rc != SQLITE_OK || ppStmt == nullptr) {
throwSqliteException(jenv,
"Can't prepare statement: %s", f_sqlite3_errmsg(db));
return nullptr;
}
jenv->ReleaseStringUTFChars(jQuery, queryStr);
// Check if number of parameters matches
if (jParams != nullptr) {
numPars = jenv->GetArrayLength(jParams);
}
int sqlNumPars;
sqlNumPars = f_sqlite3_bind_parameter_count(ppStmt);
if (numPars != sqlNumPars) {
throwSqliteException(jenv,
"Passed parameter count (%d) "
"doesn't match SQL parameter count (%d)",
numPars, sqlNumPars);
return nullptr;
}
if (jParams != nullptr) {
// Bind parameters, if any
if (numPars > 0) {
for (int i = 0; i < numPars; i++) {
jobject jObjectParam = jenv->GetObjectArrayElement(jParams, i);
// IsInstanceOf or isAssignableFrom? String is final, so IsInstanceOf
// should be OK.
jboolean isString = jenv->IsInstanceOf(jObjectParam, stringClass);
if (isString != JNI_TRUE) {
throwSqliteException(jenv,
"Parameter is not of String type");
return nullptr;
}
// SQLite parameters index from 1.
if (jObjectParam == nullptr) {
rc = f_sqlite3_bind_null(ppStmt, i + 1);
} else {
jstring jStringParam = (jstring) jObjectParam;
const char* paramStr = jenv->GetStringUTFChars(jStringParam, nullptr);
rc = f_sqlite3_bind_text(ppStmt, i + 1, paramStr, -1, SQLITE_TRANSIENT);
jenv->ReleaseStringUTFChars(jStringParam, paramStr);
}
if (rc != SQLITE_OK) {
throwSqliteException(jenv, "Error binding query parameter");
return nullptr;
}
}
}
}
// Execute the query and step through the results
rc = f_sqlite3_step(ppStmt);
if (rc != SQLITE_ROW && rc != SQLITE_DONE) {
throwSqliteException(jenv,
"Can't step statement: (%d) %s", rc, f_sqlite3_errmsg(db));
return nullptr;
}
// Get the column count and names
int cols;
cols = f_sqlite3_column_count(ppStmt);
{
// Allocate a String[cols]
jobjectArray jStringArray = jenv->NewObjectArray(cols,
stringClass,
nullptr);
if (jStringArray == nullptr) {
throwSqliteException(jenv, "Can't allocate String[]");
return nullptr;
}
// Assign column names to the String[]
for (int i = 0; i < cols; i++) {
const char* colName = f_sqlite3_column_name(ppStmt, i);
jstring jStr = jenv->NewStringUTF(colName);
jenv->SetObjectArrayElement(jStringArray, i, jStr);
}
// Construct the MatrixCursor(String[]) with given column names
jCursor = jenv->NewObject(cursorClass,
jCursorConstructor,
jStringArray);
if (jCursor == nullptr) {
throwSqliteException(jenv, "Can't allocate MatrixBlobCursor");
return nullptr;
}
}
// Return the id and number of changed rows in jQueryRes
{
jlong id = f_sqlite3_last_insert_rowid(db);
jenv->SetLongArrayRegion(jQueryRes, 0, 1, &id);
jlong changed = f_sqlite3_changes(db);
jenv->SetLongArrayRegion(jQueryRes, 1, 1, &changed);
}
// For each row, add an Object[] to the passed ArrayList,
// with that containing either String or ByteArray objects
// containing the columns
while (rc != SQLITE_DONE) {
// Process row
// Construct Object[]
jobjectArray jRow = jenv->NewObjectArray(cols,
objectClass,
nullptr);
if (jRow == nullptr) {
throwSqliteException(jenv, "Can't allocate jRow Object[]");
return nullptr;
}
for (int i = 0; i < cols; i++) {
int colType = f_sqlite3_column_type(ppStmt, i);
if (colType == SQLITE_BLOB) {
// Treat as blob
const void* blob = f_sqlite3_column_blob(ppStmt, i);
int colLen = f_sqlite3_column_bytes(ppStmt, i);
// Construct ByteBuffer of correct size
jobject jByteBuffer =
jenv->CallStaticObjectMethod(byteBufferClass,
jByteBufferAllocateDirect,
colLen);
if (jByteBuffer == nullptr) {
throwSqliteException(jenv,
"Failure calling ByteBuffer.allocateDirect");
return nullptr;
}
// Get its backing array
void* bufferArray = jenv->GetDirectBufferAddress(jByteBuffer);
if (bufferArray == nullptr) {
throwSqliteException(jenv,
"Failure calling GetDirectBufferAddress");
return nullptr;
}
memcpy(bufferArray, blob, colLen);
jenv->SetObjectArrayElement(jRow, i, jByteBuffer);
jenv->DeleteLocalRef(jByteBuffer);
} else if (colType == SQLITE_NULL) {
jenv->SetObjectArrayElement(jRow, i, nullptr);
} else {
// Treat everything else as text
const char* txt = (const char*)f_sqlite3_column_text(ppStmt, i);
jstring jStr = jenv->NewStringUTF(txt);
jenv->SetObjectArrayElement(jRow, i, jStr);
jenv->DeleteLocalRef(jStr);
}
}
// Append Object[] to Cursor
jenv->CallVoidMethod(jCursor, jCursorAddRow, jRow);
// Clean up
jenv->DeleteLocalRef(jRow);
// Get next row
rc = f_sqlite3_step(ppStmt);
// Real error?
if (rc != SQLITE_ROW && rc != SQLITE_DONE) {
throwSqliteException(jenv,
"Can't re-step statement:(%d) %s", rc, f_sqlite3_errmsg(db));
return nullptr;
}
}
rc = f_sqlite3_finalize(ppStmt);
if (rc != SQLITE_OK) {
throwSqliteException(jenv,
"Can't finalize statement: %s", f_sqlite3_errmsg(db));
return nullptr;
}
return jCursor;
}

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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/. */
#ifndef SQLiteBridge_h
#define SQLiteBridge_h
#include "sqlite3.h"
void setup_sqlite_functions(void *sqlite_handle);
#define SQLITE_WRAPPER(name, return_type, args...) \
typedef return_type (*name ## _t)(args); \
extern name ## _t f_ ## name;
SQLITE_WRAPPER(sqlite3_open, int, const char*, sqlite3**)
SQLITE_WRAPPER(sqlite3_errmsg, const char*, sqlite3*)
SQLITE_WRAPPER(sqlite3_prepare_v2, int, sqlite3*, const char*, int, sqlite3_stmt**, const char**)
SQLITE_WRAPPER(sqlite3_bind_parameter_count, int, sqlite3_stmt*)
SQLITE_WRAPPER(sqlite3_bind_text, int, sqlite3_stmt*, int, const char*, int, void(*)(void*))
SQLITE_WRAPPER(sqlite3_bind_null, int, sqlite3_stmt*, int)
SQLITE_WRAPPER(sqlite3_step, int, sqlite3_stmt*)
SQLITE_WRAPPER(sqlite3_column_count, int, sqlite3_stmt*)
SQLITE_WRAPPER(sqlite3_finalize, int, sqlite3_stmt*)
SQLITE_WRAPPER(sqlite3_close, int, sqlite3*)
SQLITE_WRAPPER(sqlite3_column_name, const char*, sqlite3_stmt*, int)
SQLITE_WRAPPER(sqlite3_column_type, int, sqlite3_stmt*, int)
SQLITE_WRAPPER(sqlite3_column_blob, const void*, sqlite3_stmt*, int)
SQLITE_WRAPPER(sqlite3_column_bytes, int, sqlite3_stmt*, int)
SQLITE_WRAPPER(sqlite3_column_text, const unsigned char*, sqlite3_stmt*, int)
SQLITE_WRAPPER(sqlite3_changes, int, sqlite3*)
SQLITE_WRAPPER(sqlite3_last_insert_rowid, sqlite3_int64, sqlite3*)
#endif /* SQLiteBridge_h */

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/* -*- Mode: c++; c-basic-offset: 4; tab-width: 20; indent-tabs-mode: nil; -*-
* 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 <jni.h>
#include <string.h>
#include <sys/mman.h>
extern "C" {
JNIEXPORT
void JNICALL
Java_org_mozilla_gecko_mozglue_SharedMemBuffer_nativeReadFromDirectBuffer(JNIEnv* jenv, jclass, jobject src, jlong dest, jint offset, jint size)
{
uint8_t* from = static_cast<uint8_t*>(jenv->GetDirectBufferAddress(src));
if (from == nullptr) {
jenv->ThrowNew(jenv->FindClass("java/lang/NullPointerException"), "Null direct buffer");
return;
}
void* to = reinterpret_cast<void*>(dest);
if (to == nullptr) {
jenv->ThrowNew(jenv->FindClass("java/lang/NullPointerException"), "Null shared memory buffer");
return;
}
memcpy(to, from + offset, size);
}
JNIEXPORT
void JNICALL
Java_org_mozilla_gecko_mozglue_SharedMemBuffer_nativeWriteToDirectBuffer(JNIEnv* jenv, jclass, jlong src, jobject dest, jint offset, jint size)
{
uint8_t* from = reinterpret_cast<uint8_t*>(src);
if (from == nullptr) {
jenv->ThrowNew(jenv->FindClass("java/lang/NullPointerException"), "Null shared memory buffer");
return;
}
void* to = jenv->GetDirectBufferAddress(dest);
if (to == nullptr) {
jenv->ThrowNew(jenv->FindClass("java/lang/NullPointerException"), "Null direct buffer");
return;
}
memcpy(to, from + offset, size);
}
JNIEXPORT
jlong JNICALL
Java_org_mozilla_gecko_mozglue_SharedMemory_map(JNIEnv *env, jobject jobj, jint fd, jint length)
{
void* address = mmap(NULL, length, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
return jlong(address);
}
JNIEXPORT
void JNICALL
Java_org_mozilla_gecko_mozglue_SharedMemory_unmap(JNIEnv *env, jobject jobj, jlong address, jint size)
{
munmap((void*)address, (size_t)size);
}
}

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# -*- Mode: python; indent-tabs-mode: nil; tab-width: 40 -*-
# vim: set filetype=python:
# 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/.
EXPORTS += [
'APKOpen.h',
]
SOURCES += [
'APKOpen.cpp',
'NativeCrypto.cpp',
'nsGeckoUtils.cpp',
'NSSBridge.cpp',
'pbkdf2_sha256.c',
'SharedMemNatives.cpp',
'SQLiteBridge.cpp',
]
FINAL_LIBRARY = 'mozglue'
for var in ('ANDROID_PACKAGE_NAME',
'ANDROID_CPU_ARCH'):
DEFINES[var] = '"%s"' % CONFIG[var]
if CONFIG['MOZ_FOLD_LIBS']:
DEFINES['MOZ_FOLD_LIBS'] = True
LOCAL_INCLUDES += [
'!/build',
'../linker',
'/db/sqlite3/src',
'/ipc/chromium/src',
'/nsprpub/lib/ds',
'/nsprpub/lib/libc/include',
'/nsprpub/pr/include',
'/security/nss/lib/base',
'/security/nss/lib/certdb',
'/security/nss/lib/cryptohi',
'/security/nss/lib/dev',
'/security/nss/lib/freebl',
'/security/nss/lib/nss',
'/security/nss/lib/pk11wrap',
'/security/nss/lib/pkcs7',
'/security/nss/lib/pki',
'/security/nss/lib/smime',
'/security/nss/lib/softoken',
'/security/nss/lib/ssl',
'/security/nss/lib/util',
'/toolkit/components/startup',
'/xpcom/build',
]
DISABLE_STL_WRAPPING = True
if CONFIG['GNU_CXX']:
CXXFLAGS += ['-Wno-error=shadow']

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/* -*- Mode: c++; c-basic-offset: 4; tab-width: 20; indent-tabs-mode: nil; -*-
* 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 <jni.h>
#include <stdlib.h>
#include <fcntl.h>
#include "APKOpen.h"
#include "Zip.h"
#include "mozilla/RefPtr.h"
extern "C"
__attribute__ ((visibility("default")))
void MOZ_JNICALL
Java_org_mozilla_gecko_mozglue_GeckoLoader_putenv(JNIEnv *jenv, jclass, jstring map)
{
const char* str;
// XXX: java doesn't give us true UTF8, we should figure out something
// better to do here
str = jenv->GetStringUTFChars(map, nullptr);
if (str == nullptr)
return;
putenv(strdup(str));
jenv->ReleaseStringUTFChars(map, str);
}
extern "C"
__attribute__ ((visibility("default")))
jobject MOZ_JNICALL
Java_org_mozilla_gecko_mozglue_DirectBufferAllocator_nativeAllocateDirectBuffer(JNIEnv *jenv, jclass, jlong size)
{
jobject buffer = nullptr;
void* mem = malloc(size);
if (mem) {
buffer = jenv->NewDirectByteBuffer(mem, size);
if (!buffer)
free(mem);
}
return buffer;
}
extern "C"
__attribute__ ((visibility("default")))
void MOZ_JNICALL
Java_org_mozilla_gecko_mozglue_DirectBufferAllocator_nativeFreeDirectBuffer(JNIEnv *jenv, jclass, jobject buf)
{
free(jenv->GetDirectBufferAddress(buf));
}
extern "C"
__attribute__ ((visibility("default")))
jlong MOZ_JNICALL
Java_org_mozilla_gecko_mozglue_NativeZip_getZip(JNIEnv *jenv, jclass, jstring path)
{
const char* str;
str = jenv->GetStringUTFChars(path, nullptr);
if (!str || !*str) {
if (str)
jenv->ReleaseStringUTFChars(path, str);
JNI_Throw(jenv, "java/lang/IllegalArgumentException", "Invalid path");
return 0;
}
RefPtr<Zip> zip = ZipCollection::GetZip(str);
jenv->ReleaseStringUTFChars(path, str);
if (!zip) {
JNI_Throw(jenv, "java/lang/IllegalArgumentException", "Invalid path or invalid zip");
return 0;
}
return reinterpret_cast<jlong>(zip.forget().take());
}
extern "C"
__attribute__ ((visibility("default")))
jlong MOZ_JNICALL
Java_org_mozilla_gecko_mozglue_NativeZip_getZipFromByteBuffer(JNIEnv *jenv, jclass, jobject buffer)
{
void *buf = jenv->GetDirectBufferAddress(buffer);
size_t size = jenv->GetDirectBufferCapacity(buffer);
RefPtr<Zip> zip = Zip::Create(buf, size);
if (!zip) {
JNI_Throw(jenv, "java/lang/IllegalArgumentException", "Invalid zip");
return 0;
}
return reinterpret_cast<jlong>(zip.forget().take());
}
extern "C"
__attribute__ ((visibility("default")))
void MOZ_JNICALL
Java_org_mozilla_gecko_mozglue_NativeZip__1release(JNIEnv *jenv, jclass, jlong obj)
{
Zip *zip = (Zip *)obj;
zip->Release();
}
extern "C"
__attribute__ ((visibility("default")))
jobject MOZ_JNICALL
Java_org_mozilla_gecko_mozglue_NativeZip__1getInputStream(JNIEnv *jenv, jobject jzip, jlong obj, jstring path)
{
Zip *zip = (Zip *)obj;
const char* str;
str = jenv->GetStringUTFChars(path, nullptr);
Zip::Stream stream;
bool res = zip->GetStream(str, &stream);
jenv->ReleaseStringUTFChars(path, str);
if (!res) {
return nullptr;
}
jobject buf = jenv->NewDirectByteBuffer(const_cast<void *>(stream.GetBuffer()), stream.GetSize());
if (!buf) {
JNI_Throw(jenv, "java/lang/RuntimeException", "Failed to create ByteBuffer");
return nullptr;
}
jclass nativeZip = jenv->GetObjectClass(jzip);
jmethodID method = jenv->GetMethodID(nativeZip, "createInputStream", "(Ljava/nio/ByteBuffer;I)Ljava/io/InputStream;");
// Since this function is only expected to be called from Java, it is safe
// to skip exception checking for the method call below, as long as no
// other Native -> Java call doesn't happen before returning to Java.
return jenv->CallObjectMethod(jzip, method, buf, (jint) stream.GetType());
}

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/*-
* Copyright 2005,2007,2009 Colin Percival
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/types.h>
#include <stdint.h>
#include <string.h>
#include <sys/endian.h>
#include "pbkdf2_sha256.h"
static inline uint32_t
be32dec(const void *pp)
{
const uint8_t *p = (uint8_t const *)pp;
return ((uint32_t)(p[3]) +
((uint32_t)(p[2]) << 8) +
((uint32_t)(p[1]) << 16) +
((uint32_t)(p[0]) << 24));
}
static inline void
be32enc(void *pp, uint32_t x)
{
uint8_t * p = (uint8_t *)pp;
p[3] = x & 0xff;
p[2] = (x >> 8) & 0xff;
p[1] = (x >> 16) & 0xff;
p[0] = (x >> 24) & 0xff;
}
/*
* Encode a length len/4 vector of (uint32_t) into a length len vector of
* (unsigned char) in big-endian form. Assumes len is a multiple of 4.
*/
static void
be32enc_vect(unsigned char *dst, const uint32_t *src, size_t len)
{
size_t i;
for (i = 0; i < len / 4; i++)
be32enc(dst + i * 4, src[i]);
}
/*
* Decode a big-endian length len vector of (unsigned char) into a length
* len/4 vector of (uint32_t). Assumes len is a multiple of 4.
*/
static void
be32dec_vect(uint32_t *dst, const unsigned char *src, size_t len)
{
size_t i;
for (i = 0; i < len / 4; i++)
dst[i] = be32dec(src + i * 4);
}
/* Elementary functions used by SHA256 */
#define Ch(x, y, z) ((x & (y ^ z)) ^ z)
#define Maj(x, y, z) ((x & (y | z)) | (y & z))
#define SHR(x, n) (x >> n)
#define ROTR(x, n) ((x >> n) | (x << (32 - n)))
#define S0(x) (ROTR(x, 2) ^ ROTR(x, 13) ^ ROTR(x, 22))
#define S1(x) (ROTR(x, 6) ^ ROTR(x, 11) ^ ROTR(x, 25))
#define s0(x) (ROTR(x, 7) ^ ROTR(x, 18) ^ SHR(x, 3))
#define s1(x) (ROTR(x, 17) ^ ROTR(x, 19) ^ SHR(x, 10))
/* SHA256 round function */
#define RND(a, b, c, d, e, f, g, h, k) \
t0 = h + S1(e) + Ch(e, f, g) + k; \
t1 = S0(a) + Maj(a, b, c); \
d += t0; \
h = t0 + t1;
/* Adjusted round function for rotating state */
#define RNDr(S, W, i, k) \
RND(S[(64 - i) % 8], S[(65 - i) % 8], \
S[(66 - i) % 8], S[(67 - i) % 8], \
S[(68 - i) % 8], S[(69 - i) % 8], \
S[(70 - i) % 8], S[(71 - i) % 8], \
W[i] + k)
/*
* SHA256 block compression function. The 256-bit state is transformed via
* the 512-bit input block to produce a new state.
*/
static void
SHA256_Transform(uint32_t * state, const unsigned char block[64])
{
uint32_t W[64];
uint32_t S[8];
uint32_t t0, t1;
int i;
/* 1. Prepare message schedule W. */
be32dec_vect(W, block, 64);
for (i = 16; i < 64; i++)
W[i] = s1(W[i - 2]) + W[i - 7] + s0(W[i - 15]) + W[i - 16];
/* 2. Initialize working variables. */
memcpy(S, state, 32);
/* 3. Mix. */
RNDr(S, W, 0, 0x428a2f98);
RNDr(S, W, 1, 0x71374491);
RNDr(S, W, 2, 0xb5c0fbcf);
RNDr(S, W, 3, 0xe9b5dba5);
RNDr(S, W, 4, 0x3956c25b);
RNDr(S, W, 5, 0x59f111f1);
RNDr(S, W, 6, 0x923f82a4);
RNDr(S, W, 7, 0xab1c5ed5);
RNDr(S, W, 8, 0xd807aa98);
RNDr(S, W, 9, 0x12835b01);
RNDr(S, W, 10, 0x243185be);
RNDr(S, W, 11, 0x550c7dc3);
RNDr(S, W, 12, 0x72be5d74);
RNDr(S, W, 13, 0x80deb1fe);
RNDr(S, W, 14, 0x9bdc06a7);
RNDr(S, W, 15, 0xc19bf174);
RNDr(S, W, 16, 0xe49b69c1);
RNDr(S, W, 17, 0xefbe4786);
RNDr(S, W, 18, 0x0fc19dc6);
RNDr(S, W, 19, 0x240ca1cc);
RNDr(S, W, 20, 0x2de92c6f);
RNDr(S, W, 21, 0x4a7484aa);
RNDr(S, W, 22, 0x5cb0a9dc);
RNDr(S, W, 23, 0x76f988da);
RNDr(S, W, 24, 0x983e5152);
RNDr(S, W, 25, 0xa831c66d);
RNDr(S, W, 26, 0xb00327c8);
RNDr(S, W, 27, 0xbf597fc7);
RNDr(S, W, 28, 0xc6e00bf3);
RNDr(S, W, 29, 0xd5a79147);
RNDr(S, W, 30, 0x06ca6351);
RNDr(S, W, 31, 0x14292967);
RNDr(S, W, 32, 0x27b70a85);
RNDr(S, W, 33, 0x2e1b2138);
RNDr(S, W, 34, 0x4d2c6dfc);
RNDr(S, W, 35, 0x53380d13);
RNDr(S, W, 36, 0x650a7354);
RNDr(S, W, 37, 0x766a0abb);
RNDr(S, W, 38, 0x81c2c92e);
RNDr(S, W, 39, 0x92722c85);
RNDr(S, W, 40, 0xa2bfe8a1);
RNDr(S, W, 41, 0xa81a664b);
RNDr(S, W, 42, 0xc24b8b70);
RNDr(S, W, 43, 0xc76c51a3);
RNDr(S, W, 44, 0xd192e819);
RNDr(S, W, 45, 0xd6990624);
RNDr(S, W, 46, 0xf40e3585);
RNDr(S, W, 47, 0x106aa070);
RNDr(S, W, 48, 0x19a4c116);
RNDr(S, W, 49, 0x1e376c08);
RNDr(S, W, 50, 0x2748774c);
RNDr(S, W, 51, 0x34b0bcb5);
RNDr(S, W, 52, 0x391c0cb3);
RNDr(S, W, 53, 0x4ed8aa4a);
RNDr(S, W, 54, 0x5b9cca4f);
RNDr(S, W, 55, 0x682e6ff3);
RNDr(S, W, 56, 0x748f82ee);
RNDr(S, W, 57, 0x78a5636f);
RNDr(S, W, 58, 0x84c87814);
RNDr(S, W, 59, 0x8cc70208);
RNDr(S, W, 60, 0x90befffa);
RNDr(S, W, 61, 0xa4506ceb);
RNDr(S, W, 62, 0xbef9a3f7);
RNDr(S, W, 63, 0xc67178f2);
/* 4. Mix local working variables into global state. */
for (i = 0; i < 8; i++)
state[i] += S[i];
/* Clean the stack. */
memset(W, 0, 256);
memset(S, 0, 32);
t0 = t1 = 0;
}
static unsigned char PAD[64] = {
0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
};
/* Add padding and terminating bit-count. */
static void
SHA256_Pad(SHA256_CTX * ctx)
{
unsigned char len[8];
uint32_t r, plen;
/*
* Convert length to a vector of bytes -- we do this now rather
* than later because the length will change after we pad.
*/
be32enc_vect(len, ctx->count, 8);
/* Add 1--64 bytes so that the resulting length is 56 mod 64. */
r = (ctx->count[1] >> 3) & 0x3f;
plen = (r < 56) ? (56 - r) : (120 - r);
SHA256_Update(ctx, PAD, (size_t)plen);
/* Add the terminating bit-count. */
SHA256_Update(ctx, len, 8);
}
/* SHA-256 initialization. Begins a SHA-256 operation. */
void
SHA256_Init(SHA256_CTX * ctx)
{
/* Zero bits processed so far. */
ctx->count[0] = ctx->count[1] = 0;
/* Magic initialization constants. */
ctx->state[0] = 0x6A09E667;
ctx->state[1] = 0xBB67AE85;
ctx->state[2] = 0x3C6EF372;
ctx->state[3] = 0xA54FF53A;
ctx->state[4] = 0x510E527F;
ctx->state[5] = 0x9B05688C;
ctx->state[6] = 0x1F83D9AB;
ctx->state[7] = 0x5BE0CD19;
}
/* Add bytes into the hash. */
void
SHA256_Update(SHA256_CTX * ctx, const void *in, size_t len)
{
uint32_t bitlen[2];
uint32_t r;
const unsigned char *src = in;
/* Number of bytes left in the buffer from previous updates. */
r = (ctx->count[1] >> 3) & 0x3f;
/* Convert the length into a number of bits. */
bitlen[1] = ((uint32_t)len) << 3;
bitlen[0] = (uint32_t)(len >> 29);
/* Update number of bits. */
if ((ctx->count[1] += bitlen[1]) < bitlen[1])
ctx->count[0]++;
ctx->count[0] += bitlen[0];
/* Handle the case where we don't need to perform any transforms. */
if (len < 64 - r) {
memcpy(&ctx->buf[r], src, len);
return;
}
/* Finish the current block. */
memcpy(&ctx->buf[r], src, 64 - r);
SHA256_Transform(ctx->state, ctx->buf);
src += 64 - r;
len -= 64 - r;
/* Perform complete blocks. */
while (len >= 64) {
SHA256_Transform(ctx->state, src);
src += 64;
len -= 64;
}
/* Copy left over data into buffer. */
memcpy(ctx->buf, src, len);
}
/*
* SHA-256 finalization. Pads the input data, exports the hash value,
* and clears the context state.
*/
void
SHA256_Final(unsigned char digest[32], SHA256_CTX * ctx)
{
/* Add padding. */
SHA256_Pad(ctx);
/* Write the hash. */
be32enc_vect(digest, ctx->state, 32);
/* Clear the context state. */
memset((void *)ctx, 0, sizeof(*ctx));
}
/* Initialize an HMAC-SHA256 operation with the given key. */
void
HMAC_SHA256_Init(HMAC_SHA256_CTX * ctx, const void * _K, size_t Klen)
{
unsigned char pad[64];
unsigned char khash[32];
const unsigned char * K = _K;
size_t i;
/* If Klen > 64, the key is really SHA256(K). */
if (Klen > 64) {
SHA256_Init(&ctx->ictx);
SHA256_Update(&ctx->ictx, K, Klen);
SHA256_Final(khash, &ctx->ictx);
K = khash;
Klen = 32;
}
/* Inner SHA256 operation is SHA256(K xor [block of 0x36] || data). */
SHA256_Init(&ctx->ictx);
memset(pad, 0x36, 64);
for (i = 0; i < Klen; i++)
pad[i] ^= K[i];
SHA256_Update(&ctx->ictx, pad, 64);
/* Outer SHA256 operation is SHA256(K xor [block of 0x5c] || hash). */
SHA256_Init(&ctx->octx);
memset(pad, 0x5c, 64);
for (i = 0; i < Klen; i++)
pad[i] ^= K[i];
SHA256_Update(&ctx->octx, pad, 64);
/* Clean the stack. */
memset(khash, 0, 32);
}
/* Add bytes to the HMAC-SHA256 operation. */
void
HMAC_SHA256_Update(HMAC_SHA256_CTX * ctx, const void *in, size_t len)
{
/* Feed data to the inner SHA256 operation. */
SHA256_Update(&ctx->ictx, in, len);
}
/* Finish an HMAC-SHA256 operation. */
void
HMAC_SHA256_Final(unsigned char digest[32], HMAC_SHA256_CTX * ctx)
{
unsigned char ihash[32];
/* Finish the inner SHA256 operation. */
SHA256_Final(ihash, &ctx->ictx);
/* Feed the inner hash to the outer SHA256 operation. */
SHA256_Update(&ctx->octx, ihash, 32);
/* Finish the outer SHA256 operation. */
SHA256_Final(digest, &ctx->octx);
/* Clean the stack. */
memset(ihash, 0, 32);
}
/**
* PBKDF2_SHA256(passwd, passwdlen, salt, saltlen, c, buf, dkLen):
* Compute PBKDF2(passwd, salt, c, dkLen) using HMAC-SHA256 as the PRF, and
* write the output to buf. The value dkLen must be at most 32 * (2^32 - 1).
*/
void
PBKDF2_SHA256(const uint8_t * passwd, size_t passwdlen, const uint8_t * salt,
size_t saltlen, uint64_t c, uint8_t * buf, size_t dkLen)
{
HMAC_SHA256_CTX PShctx, hctx;
size_t i;
uint8_t ivec[4];
uint8_t U[32];
uint8_t T[32];
uint64_t j;
int k;
size_t clen;
/* Compute HMAC state after processing P and S. */
HMAC_SHA256_Init(&PShctx, passwd, passwdlen);
HMAC_SHA256_Update(&PShctx, salt, saltlen);
/* Iterate through the blocks. */
for (i = 0; i * 32 < dkLen; i++) {
/* Generate INT(i + 1). */
be32enc(ivec, (uint32_t)(i + 1));
/* Compute U_1 = PRF(P, S || INT(i)). */
memcpy(&hctx, &PShctx, sizeof(HMAC_SHA256_CTX));
HMAC_SHA256_Update(&hctx, ivec, 4);
HMAC_SHA256_Final(U, &hctx);
/* T_i = U_1 ... */
memcpy(T, U, 32);
for (j = 2; j <= c; j++) {
/* Compute U_j. */
HMAC_SHA256_Init(&hctx, passwd, passwdlen);
HMAC_SHA256_Update(&hctx, U, 32);
HMAC_SHA256_Final(U, &hctx);
/* ... xor U_j ... */
for (k = 0; k < 32; k++)
T[k] ^= U[k];
}
/* Copy as many bytes as necessary into buf. */
clen = dkLen - i * 32;
if (clen > 32)
clen = 32;
memcpy(&buf[i * 32], T, clen);
}
/* Clean PShctx, since we never called _Final on it. */
memset(&PShctx, 0, sizeof(HMAC_SHA256_CTX));
}

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/*-
* Copyright 2005,2007,2009 Colin Percival
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD: src/lib/libmd/sha256.h,v 1.2 2006/01/17 15:35:56 phk Exp $
*/
#ifndef _SHA256_H_
#define _SHA256_H_
#ifdef __cplusplus
extern "C" {
#endif
#include <sys/types.h>
#include <stdint.h>
typedef struct SHA256Context {
uint32_t state[8];
uint32_t count[2];
unsigned char buf[64];
} SHA256_CTX;
typedef struct HMAC_SHA256Context {
SHA256_CTX ictx;
SHA256_CTX octx;
} HMAC_SHA256_CTX;
void SHA256_Init(SHA256_CTX *);
void SHA256_Update(SHA256_CTX *, const void *, size_t);
void SHA256_Final(unsigned char [32], SHA256_CTX *);
void HMAC_SHA256_Init(HMAC_SHA256_CTX *, const void *, size_t);
void HMAC_SHA256_Update(HMAC_SHA256_CTX *, const void *, size_t);
void HMAC_SHA256_Final(unsigned char [32], HMAC_SHA256_CTX *);
/**
* PBKDF2_SHA256(passwd, passwdlen, salt, saltlen, c, buf, dkLen):
* Compute PBKDF2(passwd, salt, c, dkLen) using HMAC-SHA256 as the PRF, and
* write the output to buf. The value dkLen must be at most 32 * (2^32 - 1).
*/
void PBKDF2_SHA256(const uint8_t *, size_t, const uint8_t *, size_t,
uint64_t, uint8_t *, size_t);
#ifdef __cplusplus
}
#endif
#endif /* !_SHA256_H_ */