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gecko/dom/system/gonk/NetworkUtils.cpp

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/* Copyright 2012 Mozilla Foundation and Mozilla contributors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "NetworkUtils.h"
#include <android/log.h>
#include <cutils/properties.h>
#include <limits>
#include "mozilla/dom/network/NetUtils.h"
#include <errno.h>
#include <string.h>
#include <sys/types.h> // struct addrinfo
#include <sys/socket.h> // getaddrinfo(), freeaddrinfo()
#include <netdb.h>
#include <arpa/inet.h> // inet_ntop()
#define _DEBUG 0
#define WARN(args...) __android_log_print(ANDROID_LOG_WARN, "NetworkUtils", ## args)
#define ERROR(args...) __android_log_print(ANDROID_LOG_ERROR, "NetworkUtils", ## args)
#if _DEBUG
#define DEBUG(args...) __android_log_print(ANDROID_LOG_DEBUG, "NetworkUtils" , ## args)
#else
#define DEBUG(args...)
#endif
using namespace mozilla::dom;
using namespace mozilla::ipc;
static const char* PERSIST_SYS_USB_CONFIG_PROPERTY = "persist.sys.usb.config";
static const char* SYS_USB_CONFIG_PROPERTY = "sys.usb.config";
static const char* SYS_USB_STATE_PROPERTY = "sys.usb.state";
static const char* USB_FUNCTION_RNDIS = "rndis";
static const char* USB_FUNCTION_ADB = "adb";
// Use this command to continue the function chain.
static const char* DUMMY_COMMAND = "tether status";
// Retry 20 times (2 seconds) for usb state transition.
static const uint32_t USB_FUNCTION_RETRY_TIMES = 20;
// Check "sys.usb.state" every 100ms.
static const uint32_t USB_FUNCTION_RETRY_INTERVAL = 100;
// 1xx - Requested action is proceeding
static const uint32_t NETD_COMMAND_PROCEEDING = 100;
// 2xx - Requested action has been successfully completed
static const uint32_t NETD_COMMAND_OKAY = 200;
// 4xx - The command is accepted but the requested action didn't
// take place.
static const uint32_t NETD_COMMAND_FAIL = 400;
// 5xx - The command syntax or parameters error
static const uint32_t NETD_COMMAND_ERROR = 500;
// 6xx - Unsolicited broadcasts
static const uint32_t NETD_COMMAND_UNSOLICITED = 600;
// Broadcast messages
static const uint32_t NETD_COMMAND_INTERFACE_CHANGE = 600;
static const uint32_t NETD_COMMAND_BANDWIDTH_CONTROLLER = 601;
static const char* INTERFACE_DELIMIT = ",";
static const char* USB_CONFIG_DELIMIT = ",";
static const char* NETD_MESSAGE_DELIMIT = " ";
static const uint32_t BUF_SIZE = 1024;
static const int32_t SUCCESS = 0;
static uint32_t SDK_VERSION;
struct IFProperties {
char gateway[PROPERTY_VALUE_MAX];
char dns1[PROPERTY_VALUE_MAX];
char dns2[PROPERTY_VALUE_MAX];
};
struct CurrentCommand {
CommandChain* chain;
CommandCallback callback;
char command[MAX_COMMAND_SIZE];
};
typedef Tuple3<NetdCommand*, CommandChain*, CommandCallback> QueueData;
#define GET_CURRENT_NETD_COMMAND (gCommandQueue.IsEmpty() ? nullptr : gCommandQueue[0].a)
#define GET_CURRENT_CHAIN (gCommandQueue.IsEmpty() ? nullptr : gCommandQueue[0].b)
#define GET_CURRENT_CALLBACK (gCommandQueue.IsEmpty() ? nullptr : gCommandQueue[0].c)
#define GET_CURRENT_COMMAND (gCommandQueue.IsEmpty() ? nullptr : gCommandQueue[0].a->mData)
// A macro for native function call return value check.
// For native function call, non-zero return value means failure.
#define RETURN_IF_FAILED(rv) do { \
if (SUCCESS != rv) { \
return rv; \
} \
} while (0);
static NetworkUtils* gNetworkUtils;
static nsTArray<QueueData> gCommandQueue;
static CurrentCommand gCurrentCommand;
static bool gPending = false;
static nsTArray<nsCString> gReason;
static NetworkParams *gWifiTetheringParms = 0;
CommandFunc NetworkUtils::sWifiEnableChain[] = {
NetworkUtils::clearWifiTetherParms,
NetworkUtils::wifiFirmwareReload,
NetworkUtils::startAccessPointDriver,
NetworkUtils::setAccessPoint,
NetworkUtils::startSoftAP,
NetworkUtils::setInterfaceUp,
NetworkUtils::tetherInterface,
NetworkUtils::setIpForwardingEnabled,
NetworkUtils::tetheringStatus,
NetworkUtils::startTethering,
NetworkUtils::setDnsForwarders,
NetworkUtils::enableNat,
NetworkUtils::wifiTetheringSuccess
};
CommandFunc NetworkUtils::sWifiDisableChain[] = {
NetworkUtils::clearWifiTetherParms,
NetworkUtils::stopSoftAP,
NetworkUtils::stopAccessPointDriver,
NetworkUtils::wifiFirmwareReload,
NetworkUtils::untetherInterface,
NetworkUtils::preTetherInterfaceList,
NetworkUtils::postTetherInterfaceList,
NetworkUtils::disableNat,
NetworkUtils::setIpForwardingEnabled,
NetworkUtils::stopTethering,
NetworkUtils::wifiTetheringSuccess
};
CommandFunc NetworkUtils::sWifiFailChain[] = {
NetworkUtils::clearWifiTetherParms,
NetworkUtils::stopSoftAP,
NetworkUtils::setIpForwardingEnabled,
NetworkUtils::stopTethering
};
CommandFunc NetworkUtils::sWifiRetryChain[] = {
NetworkUtils::clearWifiTetherParms,
NetworkUtils::stopSoftAP,
NetworkUtils::stopTethering,
// sWifiEnableChain:
NetworkUtils::wifiFirmwareReload,
NetworkUtils::startAccessPointDriver,
NetworkUtils::setAccessPoint,
NetworkUtils::startSoftAP,
NetworkUtils::setInterfaceUp,
NetworkUtils::tetherInterface,
NetworkUtils::setIpForwardingEnabled,
NetworkUtils::tetheringStatus,
NetworkUtils::startTethering,
NetworkUtils::setDnsForwarders,
NetworkUtils::enableNat,
NetworkUtils::wifiTetheringSuccess
};
CommandFunc NetworkUtils::sWifiOperationModeChain[] = {
NetworkUtils::wifiFirmwareReload,
NetworkUtils::wifiOperationModeSuccess
};
CommandFunc NetworkUtils::sUSBEnableChain[] = {
NetworkUtils::setInterfaceUp,
NetworkUtils::enableNat,
NetworkUtils::setIpForwardingEnabled,
NetworkUtils::tetherInterface,
NetworkUtils::tetheringStatus,
NetworkUtils::startTethering,
NetworkUtils::setDnsForwarders,
NetworkUtils::usbTetheringSuccess
};
CommandFunc NetworkUtils::sUSBDisableChain[] = {
NetworkUtils::untetherInterface,
NetworkUtils::preTetherInterfaceList,
NetworkUtils::postTetherInterfaceList,
NetworkUtils::disableNat,
NetworkUtils::setIpForwardingEnabled,
NetworkUtils::stopTethering,
NetworkUtils::usbTetheringSuccess
};
CommandFunc NetworkUtils::sUSBFailChain[] = {
NetworkUtils::stopSoftAP,
NetworkUtils::setIpForwardingEnabled,
NetworkUtils::stopTethering
};
CommandFunc NetworkUtils::sUpdateUpStreamChain[] = {
NetworkUtils::cleanUpStream,
NetworkUtils::createUpStream,
NetworkUtils::updateUpStreamSuccess
};
CommandFunc NetworkUtils::sStartDhcpServerChain[] = {
NetworkUtils::setInterfaceUp,
NetworkUtils::startTethering,
NetworkUtils::setDhcpServerSuccess
};
CommandFunc NetworkUtils::sStopDhcpServerChain[] = {
NetworkUtils::stopTethering,
NetworkUtils::setDhcpServerSuccess
};
CommandFunc NetworkUtils::sNetworkInterfaceEnableAlarmChain[] = {
NetworkUtils::enableAlarm,
NetworkUtils::setQuota,
NetworkUtils::setAlarm,
NetworkUtils::networkInterfaceAlarmSuccess
};
CommandFunc NetworkUtils::sNetworkInterfaceDisableAlarmChain[] = {
NetworkUtils::removeQuota,
NetworkUtils::disableAlarm,
NetworkUtils::networkInterfaceAlarmSuccess
};
CommandFunc NetworkUtils::sNetworkInterfaceSetAlarmChain[] = {
NetworkUtils::setAlarm,
NetworkUtils::networkInterfaceAlarmSuccess
};
CommandFunc NetworkUtils::sSetDnsChain[] = {
NetworkUtils::setDefaultInterface,
NetworkUtils::setInterfaceDns
};
/**
* Helper function to get the mask from given prefix length.
*/
static uint32_t makeMask(const uint32_t prefixLength)
{
uint32_t mask = 0;
for (uint32_t i = 0; i < prefixLength; ++i) {
mask |= (0x80000000 >> i);
}
return ntohl(mask);
}
/**
* Helper function to get the network part of an ip from prefix.
* param ip must be in network byte order.
*/
static char* getNetworkAddr(const uint32_t ip, const uint32_t prefix)
{
uint32_t mask = 0, subnet = 0;
mask = ~mask << (32 - prefix);
mask = htonl(mask);
subnet = ip & mask;
struct in_addr addr;
addr.s_addr = subnet;
return inet_ntoa(addr);
}
/**
* Helper function to split string by seperator, store split result as an nsTArray.
*/
static void split(char* str, const char* sep, nsTArray<nsCString>& result)
{
char *s = strtok(str, sep);
while (s != nullptr) {
result.AppendElement(s);
s = strtok(nullptr, sep);
}
}
static void split(char* str, const char* sep, nsTArray<nsString>& result)
{
char *s = strtok(str, sep);
while (s != nullptr) {
result.AppendElement(NS_ConvertUTF8toUTF16(s));
s = strtok(nullptr, sep);
}
}
/**
* Helper function that implement join function.
*/
static void join(nsTArray<nsCString>& array,
const char* sep,
const uint32_t maxlen,
char* result)
{
#define CHECK_LENGTH(len, add, max) len += add; \
if (len > max - 1) \
return; \
uint32_t len = 0;
uint32_t seplen = strlen(sep);
if (array.Length() > 0) {
CHECK_LENGTH(len, strlen(array[0].get()), maxlen)
strcpy(result, array[0].get());
for (uint32_t i = 1; i < array.Length(); i++) {
CHECK_LENGTH(len, seplen, maxlen)
strcat(result, sep);
CHECK_LENGTH(len, strlen(array[i].get()), maxlen)
strcat(result, array[i].get());
}
}
#undef CHECK_LEN
}
/**
* Helper function to get network interface properties from the system property table.
*/
static void getIFProperties(const char* ifname, IFProperties& prop)
{
char key[PROPERTY_KEY_MAX];
snprintf(key, PROPERTY_KEY_MAX - 1, "net.%s.gw", ifname);
property_get(key, prop.gateway, "");
snprintf(key, PROPERTY_KEY_MAX - 1, "net.%s.dns1", ifname);
property_get(key, prop.dns1, "");
snprintf(key, PROPERTY_KEY_MAX - 1, "net.%s.dns2", ifname);
property_get(key, prop.dns2, "");
}
static int getIpType(const char *aIp) {
struct addrinfo hint, *ip_info = NULL;
memset(&hint, 0, sizeof(hint));
hint.ai_family = AF_UNSPEC;
hint.ai_flags = AI_NUMERICHOST;
if (getaddrinfo(aIp, NULL, &hint, &ip_info)) {
return AF_UNSPEC;
}
int type = ip_info->ai_family;
freeaddrinfo(ip_info);
return type;
}
static void postMessage(NetworkResultOptions& aResult)
{
MOZ_ASSERT(gNetworkUtils);
MOZ_ASSERT(gNetworkUtils->getMessageCallback());
if (*(gNetworkUtils->getMessageCallback()))
(*(gNetworkUtils->getMessageCallback()))(aResult);
}
static void postMessage(NetworkParams& aOptions, NetworkResultOptions& aResult)
{
MOZ_ASSERT(gNetworkUtils);
MOZ_ASSERT(gNetworkUtils->getMessageCallback());
aResult.mId = aOptions.mId;
if (*(gNetworkUtils->getMessageCallback()))
(*(gNetworkUtils->getMessageCallback()))(aResult);
}
void NetworkUtils::next(CommandChain* aChain, bool aError, NetworkResultOptions& aResult)
{
if (aError) {
ErrorCallback onError = aChain->getErrorCallback();
if(onError) {
aResult.mError = true;
(*onError)(aChain->getParams(), aResult);
}
delete aChain;
return;
}
CommandFunc f = aChain->getNextCommand();
if (!f) {
delete aChain;
return;
}
(*f)(aChain, next, aResult);
}
CommandResult::CommandResult(int32_t aResultCode)
: mIsPending(false)
{
// This is usually not a netd command. We treat the return code
// typical linux convention, which uses 0 to indicate success.
mResult.mError = (aResultCode == SUCCESS ? false : true);
mResult.mResultCode = aResultCode;
if (aResultCode != SUCCESS) {
// The returned value is sometimes negative, make sure we pass a positive
// error number to strerror.
enum { STRERROR_R_BUF_SIZE = 1024, };
char strerrorBuf[STRERROR_R_BUF_SIZE];
strerror_r(abs(aResultCode), strerrorBuf, STRERROR_R_BUF_SIZE);
mResult.mReason = NS_ConvertUTF8toUTF16(strerrorBuf);
}
mResult.mRet = true;
}
CommandResult::CommandResult(const mozilla::dom::NetworkResultOptions& aResult)
: mResult(aResult)
, mIsPending(false)
{
}
CommandResult::CommandResult(const Pending&)
: mIsPending(true)
{
}
bool CommandResult::isPending() const
{
return mIsPending;
}
/**
* Send command to netd.
*/
void NetworkUtils::nextNetdCommand()
{
if (gCommandQueue.IsEmpty() || gPending) {
return;
}
gCurrentCommand.chain = GET_CURRENT_CHAIN;
gCurrentCommand.callback = GET_CURRENT_CALLBACK;
snprintf(gCurrentCommand.command, MAX_COMMAND_SIZE - 1, "%s", GET_CURRENT_COMMAND);
DEBUG("Sending \'%s\' command to netd.", gCurrentCommand.command);
SendNetdCommand(GET_CURRENT_NETD_COMMAND);
gCommandQueue.RemoveElementAt(0);
gPending = true;
}
/**
* Composite NetdCommand sent to netd
*
* @param aCommand Command sent to netd to execute.
* @param aChain Store command chain data, ex. command parameter.
* @param aCallback Callback function to be executed when the result of
* this command is returned from netd.
*/
void NetworkUtils::doCommand(const char* aCommand, CommandChain* aChain, CommandCallback aCallback)
{
DEBUG("Preparing to send \'%s\' command...", aCommand);
NetdCommand* netdCommand = new NetdCommand();
// Android JB version adds sequence number to netd command.
if (SDK_VERSION >= 16) {
snprintf((char*)netdCommand->mData, MAX_COMMAND_SIZE - 1, "0 %s", aCommand);
} else {
snprintf((char*)netdCommand->mData, MAX_COMMAND_SIZE - 1, "%s", aCommand);
}
netdCommand->mSize = strlen((char*)netdCommand->mData) + 1;
gCommandQueue.AppendElement(QueueData(netdCommand, aChain, aCallback));
nextNetdCommand();
}
/*
* Netd command function
*/
#define GET_CHAR(prop) NS_ConvertUTF16toUTF8(aChain->getParams().prop).get()
#define GET_FIELD(prop) aChain->getParams().prop
void NetworkUtils::wifiFirmwareReload(CommandChain* aChain,
CommandCallback aCallback,
NetworkResultOptions& aResult)
{
char command[MAX_COMMAND_SIZE];
snprintf(command, MAX_COMMAND_SIZE - 1, "softap fwreload %s %s", GET_CHAR(mIfname), GET_CHAR(mMode));
doCommand(command, aChain, aCallback);
}
void NetworkUtils::startAccessPointDriver(CommandChain* aChain,
CommandCallback aCallback,
NetworkResultOptions& aResult)
{
// Skip the command for sdk version >= 16.
if (SDK_VERSION >= 16) {
aResult.mResultCode = 0;
aResult.mResultReason = NS_ConvertUTF8toUTF16("");
aCallback(aChain, false, aResult);
return;
}
char command[MAX_COMMAND_SIZE];
snprintf(command, MAX_COMMAND_SIZE - 1, "softap start %s", GET_CHAR(mIfname));
doCommand(command, aChain, aCallback);
}
void NetworkUtils::stopAccessPointDriver(CommandChain* aChain,
CommandCallback aCallback,
NetworkResultOptions& aResult)
{
// Skip the command for sdk version >= 16.
if (SDK_VERSION >= 16) {
aResult.mResultCode = 0;
aResult.mResultReason = NS_ConvertUTF8toUTF16("");
aCallback(aChain, false, aResult);
return;
}
char command[MAX_COMMAND_SIZE];
snprintf(command, MAX_COMMAND_SIZE - 1, "softap stop %s", GET_CHAR(mIfname));
doCommand(command, aChain, aCallback);
}
/**
* Command format for sdk version < 16
* Arguments:
* argv[2] - wlan interface
* argv[3] - SSID
* argv[4] - Security
* argv[5] - Key
* argv[6] - Channel
* argv[7] - Preamble
* argv[8] - Max SCB
*
* Command format for sdk version >= 16
* Arguments:
* argv[2] - wlan interface
* argv[3] - SSID
* argv[4] - Security
* argv[5] - Key
*
* Command format for sdk version >= 18
* Arguments:
* argv[2] - wlan interface
* argv[3] - SSID
* argv[4] - Broadcast/Hidden
* argv[5] - Channel
* argv[6] - Security
* argv[7] - Key
*/
void NetworkUtils::setAccessPoint(CommandChain* aChain,
CommandCallback aCallback,
NetworkResultOptions& aResult)
{
char command[MAX_COMMAND_SIZE];
nsCString ssid(GET_CHAR(mSsid));
nsCString key(GET_CHAR(mKey));
escapeQuote(ssid);
escapeQuote(key);
if (SDK_VERSION >= 19) {
snprintf(command, MAX_COMMAND_SIZE - 1, "softap set %s \"%s\" broadcast 6 %s \"%s\"",
GET_CHAR(mIfname),
ssid.get(),
GET_CHAR(mSecurity),
key.get());
} else if (SDK_VERSION >= 16) {
snprintf(command, MAX_COMMAND_SIZE - 1, "softap set %s \"%s\" %s \"%s\"",
GET_CHAR(mIfname),
ssid.get(),
GET_CHAR(mSecurity),
key.get());
} else {
snprintf(command, MAX_COMMAND_SIZE - 1, "softap set %s %s \"%s\" %s \"%s\" 6 0 8",
GET_CHAR(mIfname),
GET_CHAR(mWifictrlinterfacename),
ssid.get(),
GET_CHAR(mSecurity),
key.get());
}
doCommand(command, aChain, aCallback);
}
void NetworkUtils::cleanUpStream(CommandChain* aChain,
CommandCallback aCallback,
NetworkResultOptions& aResult)
{
char command[MAX_COMMAND_SIZE];
snprintf(command, MAX_COMMAND_SIZE - 1, "nat disable %s %s 0", GET_CHAR(mPreInternalIfname), GET_CHAR(mPreExternalIfname));
doCommand(command, aChain, aCallback);
}
void NetworkUtils::createUpStream(CommandChain* aChain,
CommandCallback aCallback,
NetworkResultOptions& aResult)
{
char command[MAX_COMMAND_SIZE];
snprintf(command, MAX_COMMAND_SIZE - 1, "nat enable %s %s 0", GET_CHAR(mCurInternalIfname), GET_CHAR(mCurExternalIfname));
doCommand(command, aChain, aCallback);
}
void NetworkUtils::startSoftAP(CommandChain* aChain,
CommandCallback aCallback,
NetworkResultOptions& aResult)
{
const char* command= "softap startap";
doCommand(command, aChain, aCallback);
}
void NetworkUtils::stopSoftAP(CommandChain* aChain,
CommandCallback aCallback,
NetworkResultOptions& aResult)
{
const char* command= "softap stopap";
doCommand(command, aChain, aCallback);
}
void NetworkUtils::clearWifiTetherParms(CommandChain* aChain,
CommandCallback aCallback,
NetworkResultOptions& aResult)
{
delete gWifiTetheringParms;
gWifiTetheringParms = 0;
next(aChain, false, aResult);
}
void NetworkUtils::enableAlarm(CommandChain* aChain,
CommandCallback aCallback,
NetworkResultOptions& aResult)
{
const char* command= "bandwidth enable";
doCommand(command, aChain, aCallback);
}
void NetworkUtils::disableAlarm(CommandChain* aChain,
CommandCallback aCallback,
NetworkResultOptions& aResult)
{
const char* command= "bandwidth disable";
doCommand(command, aChain, aCallback);
}
void NetworkUtils::setQuota(CommandChain* aChain,
CommandCallback aCallback,
NetworkResultOptions& aResult)
{
char command[MAX_COMMAND_SIZE];
snprintf(command, MAX_COMMAND_SIZE - 1, "bandwidth setiquota %s %lld", GET_CHAR(mIfname), LLONG_MAX);
doCommand(command, aChain, aCallback);
}
void NetworkUtils::removeQuota(CommandChain* aChain,
CommandCallback aCallback,
NetworkResultOptions& aResult)
{
char command[MAX_COMMAND_SIZE];
snprintf(command, MAX_COMMAND_SIZE - 1, "bandwidth removeiquota %s", GET_CHAR(mIfname));
doCommand(command, aChain, aCallback);
}
void NetworkUtils::setAlarm(CommandChain* aChain,
CommandCallback aCallback,
NetworkResultOptions& aResult)
{
char command[MAX_COMMAND_SIZE];
snprintf(command, MAX_COMMAND_SIZE - 1, "bandwidth setinterfacealert %s %ld", GET_CHAR(mIfname), GET_FIELD(mThreshold));
doCommand(command, aChain, aCallback);
}
void NetworkUtils::setInterfaceUp(CommandChain* aChain,
CommandCallback aCallback,
NetworkResultOptions& aResult)
{
char command[MAX_COMMAND_SIZE];
if (SDK_VERSION >= 16) {
snprintf(command, MAX_COMMAND_SIZE - 1, "interface setcfg %s %s %s %s",
GET_CHAR(mIfname),
GET_CHAR(mIp),
GET_CHAR(mPrefix),
GET_CHAR(mLink));
} else {
snprintf(command, MAX_COMMAND_SIZE - 1, "interface setcfg %s %s %s [%s]",
GET_CHAR(mIfname),
GET_CHAR(mIp),
GET_CHAR(mPrefix),
GET_CHAR(mLink));
}
doCommand(command, aChain, aCallback);
}
void NetworkUtils::tetherInterface(CommandChain* aChain,
CommandCallback aCallback,
NetworkResultOptions& aResult)
{
char command[MAX_COMMAND_SIZE];
snprintf(command, MAX_COMMAND_SIZE - 1, "tether interface add %s", GET_CHAR(mIfname));
doCommand(command, aChain, aCallback);
}
void NetworkUtils::preTetherInterfaceList(CommandChain* aChain,
CommandCallback aCallback,
NetworkResultOptions& aResult)
{
char command[MAX_COMMAND_SIZE];
if (SDK_VERSION >= 16) {
snprintf(command, MAX_COMMAND_SIZE - 1, "tether interface list");
} else {
snprintf(command, MAX_COMMAND_SIZE - 1, "tether interface list 0");
}
doCommand(command, aChain, aCallback);
}
void NetworkUtils::postTetherInterfaceList(CommandChain* aChain,
CommandCallback aCallback,
NetworkResultOptions& aResult)
{
// Send the dummy command to continue the function chain.
char command[MAX_COMMAND_SIZE];
snprintf(command, MAX_COMMAND_SIZE - 1, "%s", DUMMY_COMMAND);
char buf[BUF_SIZE];
const char* reason = NS_ConvertUTF16toUTF8(aResult.mResultReason).get();
memcpy(buf, reason, strlen(reason));
split(buf, INTERFACE_DELIMIT, GET_FIELD(mInterfaceList));
doCommand(command, aChain, aCallback);
}
void NetworkUtils::setIpForwardingEnabled(CommandChain* aChain,
CommandCallback aCallback,
NetworkResultOptions& aResult)
{
char command[MAX_COMMAND_SIZE];
if (GET_FIELD(mEnable)) {
snprintf(command, MAX_COMMAND_SIZE - 1, "ipfwd enable");
} else {
// Don't disable ip forwarding because others interface still need it.
// Send the dummy command to continue the function chain.
if (GET_FIELD(mInterfaceList).Length() > 1) {
snprintf(command, MAX_COMMAND_SIZE - 1, "%s", DUMMY_COMMAND);
} else {
snprintf(command, MAX_COMMAND_SIZE - 1, "ipfwd disable");
}
}
doCommand(command, aChain, aCallback);
}
void NetworkUtils::tetheringStatus(CommandChain* aChain,
CommandCallback aCallback,
NetworkResultOptions& aResult)
{
const char* command= "tether status";
doCommand(command, aChain, aCallback);
}
void NetworkUtils::stopTethering(CommandChain* aChain,
CommandCallback aCallback,
NetworkResultOptions& aResult)
{
char command[MAX_COMMAND_SIZE];
// Don't stop tethering because others interface still need it.
// Send the dummy to continue the function chain.
if (GET_FIELD(mInterfaceList).Length() > 1) {
snprintf(command, MAX_COMMAND_SIZE - 1, "%s", DUMMY_COMMAND);
} else {
snprintf(command, MAX_COMMAND_SIZE - 1, "tether stop");
}
doCommand(command, aChain, aCallback);
}
void NetworkUtils::startTethering(CommandChain* aChain,
CommandCallback aCallback,
NetworkResultOptions& aResult)
{
char command[MAX_COMMAND_SIZE];
// We don't need to start tethering again.
// Send the dummy command to continue the function chain.
if (aResult.mResultReason.Find("started") != kNotFound) {
snprintf(command, MAX_COMMAND_SIZE - 1, "%s", DUMMY_COMMAND);
} else {
snprintf(command, MAX_COMMAND_SIZE - 1, "tether start %s %s", GET_CHAR(mWifiStartIp), GET_CHAR(mWifiEndIp));
// If usbStartIp/usbEndIp is not valid, don't append them since
// the trailing white spaces will be parsed to extra empty args
// See: http://androidxref.com/4.3_r2.1/xref/system/core/libsysutils/src/FrameworkListener.cpp#78
if (!GET_FIELD(mUsbStartIp).IsEmpty() && !GET_FIELD(mUsbEndIp).IsEmpty()) {
snprintf(command, MAX_COMMAND_SIZE - 1, "%s %s %s", command, GET_CHAR(mUsbStartIp), GET_CHAR(mUsbEndIp));
}
}
doCommand(command, aChain, aCallback);
}
void NetworkUtils::untetherInterface(CommandChain* aChain,
CommandCallback aCallback,
NetworkResultOptions& aResult)
{
char command[MAX_COMMAND_SIZE];
snprintf(command, MAX_COMMAND_SIZE - 1, "tether interface remove %s", GET_CHAR(mIfname));
doCommand(command, aChain, aCallback);
}
void NetworkUtils::setDnsForwarders(CommandChain* aChain,
CommandCallback aCallback,
NetworkResultOptions& aResult)
{
char command[MAX_COMMAND_SIZE];
snprintf(command, MAX_COMMAND_SIZE - 1, "tether dns set %s %s", GET_CHAR(mDns1), GET_CHAR(mDns2));
doCommand(command, aChain, aCallback);
}
void NetworkUtils::enableNat(CommandChain* aChain,
CommandCallback aCallback,
NetworkResultOptions& aResult)
{
char command[MAX_COMMAND_SIZE];
if (!GET_FIELD(mIp).IsEmpty() && !GET_FIELD(mPrefix).IsEmpty()) {
uint32_t prefix = atoi(GET_CHAR(mPrefix));
uint32_t ip = inet_addr(GET_CHAR(mIp));
char* networkAddr = getNetworkAddr(ip, prefix);
// address/prefix will only take effect when secondary routing table exists.
snprintf(command, MAX_COMMAND_SIZE - 1, "nat enable %s %s 1 %s/%s",
GET_CHAR(mInternalIfname), GET_CHAR(mExternalIfname), networkAddr,
GET_CHAR(mPrefix));
} else {
snprintf(command, MAX_COMMAND_SIZE - 1, "nat enable %s %s 0",
GET_CHAR(mInternalIfname), GET_CHAR(mExternalIfname));
}
doCommand(command, aChain, aCallback);
}
void NetworkUtils::disableNat(CommandChain* aChain,
CommandCallback aCallback,
NetworkResultOptions& aResult)
{
char command[MAX_COMMAND_SIZE];
if (!GET_FIELD(mIp).IsEmpty() && !GET_FIELD(mPrefix).IsEmpty()) {
uint32_t prefix = atoi(GET_CHAR(mPrefix));
uint32_t ip = inet_addr(GET_CHAR(mIp));
char* networkAddr = getNetworkAddr(ip, prefix);
snprintf(command, MAX_COMMAND_SIZE - 1, "nat disable %s %s 1 %s/%s",
GET_CHAR(mInternalIfname), GET_CHAR(mExternalIfname), networkAddr,
GET_CHAR(mPrefix));
} else {
snprintf(command, MAX_COMMAND_SIZE - 1, "nat disable %s %s 0",
GET_CHAR(mInternalIfname), GET_CHAR(mExternalIfname));
}
doCommand(command, aChain, aCallback);
}
void NetworkUtils::setDefaultInterface(CommandChain* aChain,
CommandCallback aCallback,
NetworkResultOptions& aResult)
{
char command[MAX_COMMAND_SIZE];
snprintf(command, MAX_COMMAND_SIZE - 1, "resolver setdefaultif %s", GET_CHAR(mIfname));
doCommand(command, aChain, aCallback);
}
void NetworkUtils::setInterfaceDns(CommandChain* aChain,
CommandCallback aCallback,
NetworkResultOptions& aResult)
{
char command[MAX_COMMAND_SIZE];
int written = snprintf(command, sizeof command, "resolver setifdns %s %s",
GET_CHAR(mIfname), GET_CHAR(mDomain));
nsTArray<nsString>& dnses = GET_FIELD(mDnses);
uint32_t length = dnses.Length();
for (uint32_t i = 0; i < length; i++) {
NS_ConvertUTF16toUTF8 autoDns(dnses[i]);
int ret = snprintf(command + written, sizeof(command) - written, " %s", autoDns.get());
if (ret <= 1) {
command[written] = '\0';
continue;
}
if ((ret + written) >= sizeof(command)) {
command[written] = '\0';
break;
}
written += ret;
}
doCommand(command, aChain, aCallback);
}
#undef GET_CHAR
#undef GET_FIELD
/*
* Netd command success/fail function
*/
#define ASSIGN_FIELD(prop) aResult.prop = aChain->getParams().prop;
#define ASSIGN_FIELD_VALUE(prop, value) aResult.prop = value;
#define RUN_CHAIN(param, cmds, err) \
uint32_t size = sizeof(cmds) / sizeof(CommandFunc); \
CommandChain* chain = new CommandChain(param, cmds, size, err); \
NetworkResultOptions result; \
next(chain, false, result);
void NetworkUtils::wifiTetheringFail(NetworkParams& aOptions, NetworkResultOptions& aResult)
{
// Notify the main thread.
postMessage(aOptions, aResult);
// If one of the stages fails, we try roll back to ensure
// we don't leave the network systems in limbo.
ASSIGN_FIELD_VALUE(mEnable, false)
RUN_CHAIN(aOptions, sWifiFailChain, nullptr)
}
void NetworkUtils::wifiTetheringSuccess(CommandChain* aChain,
CommandCallback aCallback,
NetworkResultOptions& aResult)
{
ASSIGN_FIELD(mEnable)
if (aChain->getParams().mEnable) {
MOZ_ASSERT(!gWifiTetheringParms);
gWifiTetheringParms = new NetworkParams(aChain->getParams());
}
postMessage(aChain->getParams(), aResult);
}
void NetworkUtils::usbTetheringFail(NetworkParams& aOptions,
NetworkResultOptions& aResult)
{
// Notify the main thread.
postMessage(aOptions, aResult);
// Try to roll back to ensure
// we don't leave the network systems in limbo.
// This parameter is used to disable ipforwarding.
{
aOptions.mEnable = false;
RUN_CHAIN(aOptions, sUSBFailChain, nullptr)
}
// Disable usb rndis function.
{
NetworkParams options;
options.mEnable = false;
options.mReport = false;
gNetworkUtils->enableUsbRndis(options);
}
}
void NetworkUtils::usbTetheringSuccess(CommandChain* aChain,
CommandCallback aCallback,
NetworkResultOptions& aResult)
{
ASSIGN_FIELD(mEnable)
postMessage(aChain->getParams(), aResult);
}
void NetworkUtils::networkInterfaceAlarmFail(NetworkParams& aOptions, NetworkResultOptions& aResult)
{
postMessage(aOptions, aResult);
}
void NetworkUtils::networkInterfaceAlarmSuccess(CommandChain* aChain,
CommandCallback aCallback,
NetworkResultOptions& aResult)
{
// TODO : error is not used , and it is conflict with boolean type error.
// params.error = parseFloat(params.resultReason);
postMessage(aChain->getParams(), aResult);
}
void NetworkUtils::updateUpStreamFail(NetworkParams& aOptions, NetworkResultOptions& aResult)
{
postMessage(aOptions, aResult);
}
void NetworkUtils::updateUpStreamSuccess(CommandChain* aChain,
CommandCallback aCallback,
NetworkResultOptions& aResult)
{
ASSIGN_FIELD(mCurExternalIfname)
ASSIGN_FIELD(mCurInternalIfname)
postMessage(aChain->getParams(), aResult);
}
void NetworkUtils::setDhcpServerFail(NetworkParams& aOptions, NetworkResultOptions& aResult)
{
aResult.mSuccess = false;
postMessage(aOptions, aResult);
}
void NetworkUtils::setDhcpServerSuccess(CommandChain* aChain, CommandCallback aCallback, NetworkResultOptions& aResult)
{
aResult.mSuccess = true;
postMessage(aChain->getParams(), aResult);
}
void NetworkUtils::wifiOperationModeFail(NetworkParams& aOptions, NetworkResultOptions& aResult)
{
postMessage(aOptions, aResult);
}
void NetworkUtils::wifiOperationModeSuccess(CommandChain* aChain,
CommandCallback aCallback,
NetworkResultOptions& aResult)
{
postMessage(aChain->getParams(), aResult);
}
void NetworkUtils::setDnsFail(NetworkParams& aOptions, NetworkResultOptions& aResult)
{
postMessage(aOptions, aResult);
}
#undef ASSIGN_FIELD
#undef ASSIGN_FIELD_VALUE
NetworkUtils::NetworkUtils(MessageCallback aCallback)
: mMessageCallback(aCallback)
{
mNetUtils = new NetUtils();
char value[PROPERTY_VALUE_MAX];
property_get("ro.build.version.sdk", value, nullptr);
SDK_VERSION = atoi(value);
gNetworkUtils = this;
}
NetworkUtils::~NetworkUtils()
{
}
#define GET_CHAR(prop) NS_ConvertUTF16toUTF8(aOptions.prop).get()
#define GET_FIELD(prop) aOptions.prop
// Hoist this type definition to global to avoid template
// instantiation error on gcc 4.4 used by ICS emulator.
typedef CommandResult (NetworkUtils::*CommandHandler)(NetworkParams&);
struct CommandHandlerEntry
{
const char* mCommandName;
CommandHandler mCommandHandler;
};
void NetworkUtils::ExecuteCommand(NetworkParams aOptions)
{
const static CommandHandlerEntry
COMMAND_HANDLER_TABLE[] = {
// For command 'testCommand', BUILD_ENTRY(testCommand) will generate
// {"testCommand", NetworkUtils::testCommand}
#define BUILD_ENTRY(c) {#c, &NetworkUtils::c}
BUILD_ENTRY(removeNetworkRoute),
BUILD_ENTRY(setDNS),
BUILD_ENTRY(setDefaultRoute),
BUILD_ENTRY(removeDefaultRoute),
BUILD_ENTRY(addHostRoute),
BUILD_ENTRY(removeHostRoute),
BUILD_ENTRY(removeHostRoutes),
BUILD_ENTRY(addSecondaryRoute),
BUILD_ENTRY(removeSecondaryRoute),
BUILD_ENTRY(setNetworkInterfaceAlarm),
BUILD_ENTRY(enableNetworkInterfaceAlarm),
BUILD_ENTRY(disableNetworkInterfaceAlarm),
BUILD_ENTRY(setWifiOperationMode),
BUILD_ENTRY(setDhcpServer),
BUILD_ENTRY(setWifiTethering),
BUILD_ENTRY(setUSBTethering),
BUILD_ENTRY(enableUsbRndis),
BUILD_ENTRY(updateUpStream),
BUILD_ENTRY(configureInterface),
BUILD_ENTRY(dhcpRequest),
BUILD_ENTRY(enableInterface),
BUILD_ENTRY(disableInterface),
BUILD_ENTRY(resetConnections),
#undef BUILD_ENTRY
};
// Loop until we find the command name which matches aOptions.mCmd.
CommandHandler handler = nullptr;
for (size_t i = 0; i < mozilla::ArrayLength(COMMAND_HANDLER_TABLE); i++) {
if (aOptions.mCmd.EqualsASCII(COMMAND_HANDLER_TABLE[i].mCommandName)) {
handler = COMMAND_HANDLER_TABLE[i].mCommandHandler;
break;
}
}
if (!handler) {
// Command not found in COMMAND_HANDLER_TABLE.
WARN("unknown message: %s", NS_ConvertUTF16toUTF8(aOptions.mCmd).get());
return;
}
// The handler would return one of the following 3 values
// to be wrapped to CommandResult:
//
// 1) |int32_t| for mostly synchronous native function calls.
// 2) |NetworkResultOptions| to populate additional results. (e.g. dhcpRequest)
// 3) |CommandResult::Pending| to indicate the result is not
// obtained yet.
//
// If the handler returns "Pending", the handler should take the
// responsibility for posting result to main thread.
CommandResult commandResult = (this->*handler)(aOptions);
if (!commandResult.isPending()) {
postMessage(aOptions, commandResult.mResult);
}
}
/**
* Handle received data from netd.
*/
void NetworkUtils::onNetdMessage(NetdCommand* aCommand)
{
char* data = (char*)aCommand->mData;
// get code & reason.
char* result = strtok(data, NETD_MESSAGE_DELIMIT);
if (!result) {
nextNetdCommand();
return;
}
uint32_t code = atoi(result);
if (!isBroadcastMessage(code) && SDK_VERSION >= 16) {
strtok(nullptr, NETD_MESSAGE_DELIMIT);
}
char* reason = strtok(nullptr, "\0");
if (isBroadcastMessage(code)) {
DEBUG("Receiving broadcast message from netd.");
DEBUG(" ==> Code: %d Reason: %s", code, reason);
sendBroadcastMessage(code, reason);
if (code == NETD_COMMAND_INTERFACE_CHANGE) {
if (gWifiTetheringParms) {
char linkdownReason[MAX_COMMAND_SIZE];
snprintf(linkdownReason, MAX_COMMAND_SIZE - 1,
"Iface linkstate %s down",
NS_ConvertUTF16toUTF8(gWifiTetheringParms->mIfname).get());
if (!strcmp(reason, linkdownReason)) {
DEBUG("Wifi link down, restarting tethering.");
RUN_CHAIN(*gWifiTetheringParms, sWifiRetryChain, wifiTetheringFail)
}
}
}
nextNetdCommand();
return;
}
// Set pending to false before we handle next command.
DEBUG("Receiving \"%s\" command response from netd.", gCurrentCommand.command);
DEBUG(" ==> Code: %d Reason: %s", code, reason);
gReason.AppendElement(nsCString(reason));
// 1xx response code regards as command is proceeding, we need to wait for
// final response code such as 2xx, 4xx and 5xx before sending next command.
if (isProceeding(code)) {
return;
}
if (isComplete(code)) {
gPending = false;
}
if (gCurrentCommand.callback) {
char buf[BUF_SIZE];
join(gReason, INTERFACE_DELIMIT, BUF_SIZE, buf);
NetworkResultOptions result;
result.mResultCode = code;
result.mResultReason = NS_ConvertUTF8toUTF16(buf);
(*gCurrentCommand.callback)(gCurrentCommand.chain, isError(code), result);
gReason.Clear();
}
// Handling pending commands if any.
if (isComplete(code)) {
nextNetdCommand();
}
}
/**
* Start/Stop DHCP server.
*/
CommandResult NetworkUtils::setDhcpServer(NetworkParams& aOptions)
{
if (aOptions.mEnabled) {
aOptions.mWifiStartIp = aOptions.mStartIp;
aOptions.mWifiEndIp = aOptions.mEndIp;
aOptions.mIp = aOptions.mServerIp;
aOptions.mPrefix = aOptions.mMaskLength;
aOptions.mLink = NS_ConvertUTF8toUTF16("up");
RUN_CHAIN(aOptions, sStartDhcpServerChain, setDhcpServerFail)
} else {
RUN_CHAIN(aOptions, sStopDhcpServerChain, setDhcpServerFail)
}
return CommandResult::Pending();
}
/**
* Set DNS servers for given network interface.
*/
CommandResult NetworkUtils::setDNS(NetworkParams& aOptions)
{
uint32_t length = aOptions.mDnses.Length();
if (length > 0) {
for (uint32_t i = 0; i < length; i++) {
NS_ConvertUTF16toUTF8 autoDns(aOptions.mDnses[i]);
char dns_prop_key[PROPERTY_VALUE_MAX];
snprintf(dns_prop_key, sizeof dns_prop_key, "net.dns%d", i+1);
property_set(dns_prop_key, autoDns.get());
}
} else {
// Set dnses from system properties.
IFProperties interfaceProperties;
getIFProperties(GET_CHAR(mIfname), interfaceProperties);
property_set("net.dns1", interfaceProperties.dns1);
property_set("net.dns2", interfaceProperties.dns2);
}
// Bump the DNS change property.
char dnschange[PROPERTY_VALUE_MAX];
property_get("net.dnschange", dnschange, "0");
char num[PROPERTY_VALUE_MAX];
snprintf(num, PROPERTY_VALUE_MAX - 1, "%d", atoi(dnschange) + 1);
property_set("net.dnschange", num);
// DNS needs to be set through netd since JellyBean (4.3).
if (SDK_VERSION >= 18) {
RUN_CHAIN(aOptions, sSetDnsChain, setDnsFail)
return CommandResult::Pending();
}
return SUCCESS;
}
CommandResult NetworkUtils::configureInterface(NetworkParams& aOptions)
{
NS_ConvertUTF16toUTF8 autoIfname(aOptions.mIfname);
return mNetUtils->do_ifc_configure(
autoIfname.get(),
aOptions.mIpaddr,
aOptions.mMask,
aOptions.mGateway_long,
aOptions.mDns1_long,
aOptions.mDns2_long
);
}
CommandResult NetworkUtils::dhcpRequest(NetworkParams& aOptions) {
mozilla::dom::NetworkResultOptions result;
NS_ConvertUTF16toUTF8 autoIfname(aOptions.mIfname);
char ipaddr[PROPERTY_VALUE_MAX];
char gateway[PROPERTY_VALUE_MAX];
uint32_t prefixLength;
char dns1[PROPERTY_VALUE_MAX];
char dns2[PROPERTY_VALUE_MAX];
char server[PROPERTY_VALUE_MAX];
uint32_t lease;
char vendorinfo[PROPERTY_VALUE_MAX];
int32_t ret = mNetUtils->do_dhcp_do_request(autoIfname.get(),
ipaddr,
gateway,
&prefixLength,
dns1,
dns2,
server,
&lease,
vendorinfo);
RETURN_IF_FAILED(ret);
result.mIpaddr_str = NS_ConvertUTF8toUTF16(ipaddr);
result.mGateway_str = NS_ConvertUTF8toUTF16(gateway);
result.mDns1_str = NS_ConvertUTF8toUTF16(dns1);
result.mDns2_str = NS_ConvertUTF8toUTF16(dns2);
result.mServer_str = NS_ConvertUTF8toUTF16(server);
result.mVendor_str = NS_ConvertUTF8toUTF16(vendorinfo);
result.mLease = lease;
result.mMask = makeMask(prefixLength);
uint32_t inet4; // only support IPv4 for now.
#define INET_PTON(var, field) \
PR_BEGIN_MACRO \
inet_pton(AF_INET, var, &inet4); \
result.field = inet4; \
PR_END_MACRO
INET_PTON(ipaddr, mIpaddr);
INET_PTON(gateway, mGateway);
if (dns1[0] != '\0') {
INET_PTON(dns1, mDns1);
}
if (dns2[0] != '\0') {
INET_PTON(dns2, mDns2);
}
INET_PTON(server, mServer);
char inet_str[64];
if (inet_ntop(AF_INET, &result.mMask, inet_str, sizeof(inet_str))) {
result.mMask_str = NS_ConvertUTF8toUTF16(inet_str);
}
return result;
}
CommandResult NetworkUtils::enableInterface(NetworkParams& aOptions) {
return mNetUtils->do_ifc_enable(
NS_ConvertUTF16toUTF8(aOptions.mIfname).get());
}
CommandResult NetworkUtils::disableInterface(NetworkParams& aOptions) {
return mNetUtils->do_ifc_disable(
NS_ConvertUTF16toUTF8(aOptions.mIfname).get());
}
CommandResult NetworkUtils::resetConnections(NetworkParams& aOptions) {
NS_ConvertUTF16toUTF8 autoIfname(aOptions.mIfname);
return mNetUtils->do_ifc_reset_connections(
NS_ConvertUTF16toUTF8(aOptions.mIfname).get(),
RESET_ALL_ADDRESSES);
}
/**
* Set default route and DNS servers for given network interface.
*/
CommandResult NetworkUtils::setDefaultRoute(NetworkParams& aOptions)
{
NS_ConvertUTF16toUTF8 autoIfname(aOptions.mIfname);
if (!aOptions.mOldIfname.IsEmpty()) {
// Remove IPv4's default route.
RETURN_IF_FAILED(mNetUtils->do_ifc_remove_default_route(GET_CHAR(mOldIfname)));
// Remove IPv6's default route.
RETURN_IF_FAILED(mNetUtils->do_ifc_remove_route(GET_CHAR(mOldIfname), "::", 0, NULL));
}
uint32_t length = aOptions.mGateways.Length();
if (length > 0) {
for (uint32_t i = 0; i < length; i++) {
NS_ConvertUTF16toUTF8 autoGateway(aOptions.mGateways[i]);
int type = getIpType(autoGateway.get());
if (type != AF_INET && type != AF_INET6) {
continue;
}
if (type == AF_INET6) {
RETURN_IF_FAILED(mNetUtils->do_ifc_add_route(autoIfname.get(), "::", 0, autoGateway.get()));
} else { /* type == AF_INET */
RETURN_IF_FAILED(mNetUtils->do_ifc_set_default_route(autoIfname.get(), inet_addr(autoGateway.get())));
}
}
} else {
// Set default froute from system properties.
char key[PROPERTY_KEY_MAX];
char gateway[PROPERTY_KEY_MAX];
snprintf(key, sizeof key - 1, "net.%s.gw", autoIfname.get());
property_get(key, gateway, "");
int type = getIpType(gateway);
if (type != AF_INET && type != AF_INET6) {
return EAFNOSUPPORT;
}
if (type == AF_INET6) {
RETURN_IF_FAILED(mNetUtils->do_ifc_add_route(autoIfname.get(), "::", 0, gateway));
} else { /* type == AF_INET */
RETURN_IF_FAILED(mNetUtils->do_ifc_set_default_route(autoIfname.get(), inet_addr(gateway)));
}
}
return SUCCESS;
}
/**
* Remove default route for given network interface.
*/
CommandResult NetworkUtils::removeDefaultRoute(NetworkParams& aOptions)
{
uint32_t length = aOptions.mGateways.Length();
for (uint32_t i = 0; i < length; i++) {
NS_ConvertUTF16toUTF8 autoGateway(aOptions.mGateways[i]);
int type = getIpType(autoGateway.get());
if (type != AF_INET && type != AF_INET6) {
return EAFNOSUPPORT;
}
RETURN_IF_FAILED(mNetUtils->do_ifc_remove_route(GET_CHAR(mIfname),
type == AF_INET ? "0.0.0.0" : "::",
0, autoGateway.get()));
}
return SUCCESS;
}
/**
* Add host route for given network interface.
*/
CommandResult NetworkUtils::addHostRoute(NetworkParams& aOptions)
{
NS_ConvertUTF16toUTF8 autoIfname(aOptions.mIfname);
NS_ConvertUTF16toUTF8 autoHostname(aOptions.mIp);
NS_ConvertUTF16toUTF8 autoGateway(aOptions.mGateway);
int type, prefix;
type = getIpType(autoHostname.get());
if (type != AF_INET && type != AF_INET6) {
return EAFNOSUPPORT;
}
if (type != getIpType(autoGateway.get())) {
return EINVAL;
}
prefix = type == AF_INET ? 32 : 128;
return mNetUtils->do_ifc_add_route(autoIfname.get(), autoHostname.get(),
prefix, autoGateway.get());
}
/**
* Remove host route for given network interface.
*/
CommandResult NetworkUtils::removeHostRoute(NetworkParams& aOptions)
{
NS_ConvertUTF16toUTF8 autoIfname(aOptions.mIfname);
NS_ConvertUTF16toUTF8 autoHostname(aOptions.mIp);
NS_ConvertUTF16toUTF8 autoGateway(aOptions.mGateway);
int type, prefix;
type = getIpType(autoHostname.get());
if (type != AF_INET && type != AF_INET6) {
return EAFNOSUPPORT;
}
if (type != getIpType(autoGateway.get())) {
return EINVAL;
}
prefix = type == AF_INET ? 32 : 128;
return mNetUtils->do_ifc_remove_route(autoIfname.get(), autoHostname.get(),
prefix, autoGateway.get());
}
/**
* Remove the routes associated with the named interface.
*/
CommandResult NetworkUtils::removeHostRoutes(NetworkParams& aOptions)
{
return mNetUtils->do_ifc_remove_host_routes(GET_CHAR(mIfname));
}
CommandResult NetworkUtils::removeNetworkRoute(NetworkParams& aOptions)
{
NS_ConvertUTF16toUTF8 autoIfname(aOptions.mIfname);
NS_ConvertUTF16toUTF8 autoIp(aOptions.mIp);
int type = getIpType(autoIp.get());
if (type != AF_INET && type != AF_INET6) {
return EAFNOSUPPORT;
}
uint32_t prefixLength = GET_FIELD(mPrefixLength);
if (type == AF_INET6) {
// Calculate subnet.
struct in6_addr in6;
if (inet_pton(AF_INET6, autoIp.get(), &in6) != 1) {
return EINVAL;
}
uint32_t p, i, p1, mask;
p = prefixLength;
i = 0;
while (i < 4) {
p1 = p > 32 ? 32 : p;
p -= p1;
mask = p1 ? ~0x0 << (32 - p1) : 0;
in6.s6_addr32[i++] &= htonl(mask);
}
char subnetStr[INET6_ADDRSTRLEN];
if (!inet_ntop(AF_INET6, &in6, subnetStr, sizeof subnetStr)) {
return EINVAL;
}
// Remove default route.
RETURN_IF_FAILED(mNetUtils->do_ifc_remove_route(autoIfname.get(), "::", 0, NULL));
// Remove subnet route.
RETURN_IF_FAILED(mNetUtils->do_ifc_remove_route(autoIfname.get(), subnetStr, prefixLength, NULL));
return SUCCESS;
}
/* type == AF_INET */
uint32_t ip = inet_addr(autoIp.get());
uint32_t netmask = makeMask(prefixLength);
uint32_t subnet = ip & netmask;
const char* gateway = "0.0.0.0";
struct in_addr addr;
addr.s_addr = subnet;
const char* dst = inet_ntoa(addr);
RETURN_IF_FAILED(mNetUtils->do_ifc_remove_default_route(autoIfname.get()));
RETURN_IF_FAILED(mNetUtils->do_ifc_remove_route(autoIfname.get(), dst, prefixLength, gateway));
return SUCCESS;
}
CommandResult NetworkUtils::addSecondaryRoute(NetworkParams& aOptions)
{
char command[MAX_COMMAND_SIZE];
snprintf(command, MAX_COMMAND_SIZE - 1,
"interface route add %s secondary %s %s %s",
GET_CHAR(mIfname),
GET_CHAR(mIp),
GET_CHAR(mPrefix),
GET_CHAR(mGateway));
doCommand(command, nullptr, nullptr);
return SUCCESS;
}
CommandResult NetworkUtils::removeSecondaryRoute(NetworkParams& aOptions)
{
char command[MAX_COMMAND_SIZE];
snprintf(command, MAX_COMMAND_SIZE - 1,
"interface route remove %s secondary %s %s %s",
GET_CHAR(mIfname),
GET_CHAR(mIp),
GET_CHAR(mPrefix),
GET_CHAR(mGateway));
doCommand(command, nullptr, nullptr);
return SUCCESS;
}
CommandResult NetworkUtils::setNetworkInterfaceAlarm(NetworkParams& aOptions)
{
DEBUG("setNetworkInterfaceAlarms: %s", GET_CHAR(mIfname));
RUN_CHAIN(aOptions, sNetworkInterfaceSetAlarmChain, networkInterfaceAlarmFail);
return CommandResult::Pending();
}
CommandResult NetworkUtils::enableNetworkInterfaceAlarm(NetworkParams& aOptions)
{
DEBUG("enableNetworkInterfaceAlarm: %s", GET_CHAR(mIfname));
RUN_CHAIN(aOptions, sNetworkInterfaceEnableAlarmChain, networkInterfaceAlarmFail);
return CommandResult::Pending();
}
CommandResult NetworkUtils::disableNetworkInterfaceAlarm(NetworkParams& aOptions)
{
DEBUG("disableNetworkInterfaceAlarms: %s", GET_CHAR(mIfname));
RUN_CHAIN(aOptions, sNetworkInterfaceDisableAlarmChain, networkInterfaceAlarmFail);
return CommandResult::Pending();
}
/**
* handling main thread's reload Wifi firmware request
*/
CommandResult NetworkUtils::setWifiOperationMode(NetworkParams& aOptions)
{
DEBUG("setWifiOperationMode: %s %s", GET_CHAR(mIfname), GET_CHAR(mMode));
RUN_CHAIN(aOptions, sWifiOperationModeChain, wifiOperationModeFail);
return CommandResult::Pending();
}
/**
* handling main thread's enable/disable WiFi Tethering request
*/
CommandResult NetworkUtils::setWifiTethering(NetworkParams& aOptions)
{
bool enable = aOptions.mEnable;
IFProperties interfaceProperties;
getIFProperties(GET_CHAR(mExternalIfname), interfaceProperties);
if (strcmp(interfaceProperties.dns1, "")) {
int type = getIpType(interfaceProperties.dns1);
if (type != AF_INET6) {
aOptions.mDns1 = NS_ConvertUTF8toUTF16(interfaceProperties.dns1);
}
}
if (strcmp(interfaceProperties.dns2, "")) {
int type = getIpType(interfaceProperties.dns2);
if (type != AF_INET6) {
aOptions.mDns2 = NS_ConvertUTF8toUTF16(interfaceProperties.dns2);
}
}
dumpParams(aOptions, "WIFI");
if (enable) {
DEBUG("Starting Wifi Tethering on %s <-> %s",
GET_CHAR(mInternalIfname), GET_CHAR(mExternalIfname));
RUN_CHAIN(aOptions, sWifiEnableChain, wifiTetheringFail)
} else {
DEBUG("Stopping Wifi Tethering on %s <-> %s",
GET_CHAR(mInternalIfname), GET_CHAR(mExternalIfname));
RUN_CHAIN(aOptions, sWifiDisableChain, wifiTetheringFail)
}
return CommandResult::Pending();
}
CommandResult NetworkUtils::setUSBTethering(NetworkParams& aOptions)
{
bool enable = aOptions.mEnable;
IFProperties interfaceProperties;
getIFProperties(GET_CHAR(mExternalIfname), interfaceProperties);
if (strcmp(interfaceProperties.dns1, "")) {
int type = getIpType(interfaceProperties.dns1);
if (type != AF_INET6) {
aOptions.mDns1 = NS_ConvertUTF8toUTF16(interfaceProperties.dns1);
}
}
if (strcmp(interfaceProperties.dns2, "")) {
int type = getIpType(interfaceProperties.dns2);
if (type != AF_INET6) {
aOptions.mDns2 = NS_ConvertUTF8toUTF16(interfaceProperties.dns2);
}
}
dumpParams(aOptions, "USB");
if (enable) {
DEBUG("Starting USB Tethering on %s <-> %s",
GET_CHAR(mInternalIfname), GET_CHAR(mExternalIfname));
RUN_CHAIN(aOptions, sUSBEnableChain, usbTetheringFail)
} else {
DEBUG("Stopping USB Tethering on %s <-> %s",
GET_CHAR(mInternalIfname), GET_CHAR(mExternalIfname));
RUN_CHAIN(aOptions, sUSBDisableChain, usbTetheringFail)
}
return CommandResult::Pending();
}
void NetworkUtils::escapeQuote(nsCString& aString)
{
aString.ReplaceSubstring("\\", "\\\\");
aString.ReplaceSubstring("\"", "\\\"");
}
CommandResult NetworkUtils::checkUsbRndisState(NetworkParams& aOptions)
{
static uint32_t retry = 0;
char currentState[PROPERTY_VALUE_MAX];
property_get(SYS_USB_STATE_PROPERTY, currentState, nullptr);
nsTArray<nsCString> stateFuncs;
split(currentState, USB_CONFIG_DELIMIT, stateFuncs);
bool rndisPresent = stateFuncs.Contains(nsCString(USB_FUNCTION_RNDIS));
if (aOptions.mEnable == rndisPresent) {
NetworkResultOptions result;
result.mEnable = aOptions.mEnable;
result.mResult = true;
retry = 0;
return result;
}
if (retry < USB_FUNCTION_RETRY_TIMES) {
retry++;
usleep(USB_FUNCTION_RETRY_INTERVAL * 1000);
return checkUsbRndisState(aOptions);
}
NetworkResultOptions result;
result.mResult = false;
retry = 0;
return result;
}
/**
* Modify usb function's property to turn on USB RNDIS function
*/
CommandResult NetworkUtils::enableUsbRndis(NetworkParams& aOptions)
{
bool report = aOptions.mReport;
// For some reason, rndis doesn't play well with diag,modem,nmea.
// So when turning rndis on, we set sys.usb.config to either "rndis"
// or "rndis,adb". When turning rndis off, we go back to
// persist.sys.usb.config.
//
// On the otoro/unagi, persist.sys.usb.config should be one of:
//
// diag,modem,nmea,mass_storage
// diag,modem,nmea,mass_storage,adb
//
// When rndis is enabled, sys.usb.config should be one of:
//
// rdnis
// rndis,adb
//
// and when rndis is disabled, it should revert to persist.sys.usb.config
char currentConfig[PROPERTY_VALUE_MAX];
property_get(SYS_USB_CONFIG_PROPERTY, currentConfig, nullptr);
nsTArray<nsCString> configFuncs;
split(currentConfig, USB_CONFIG_DELIMIT, configFuncs);
char persistConfig[PROPERTY_VALUE_MAX];
property_get(PERSIST_SYS_USB_CONFIG_PROPERTY, persistConfig, nullptr);
nsTArray<nsCString> persistFuncs;
split(persistConfig, USB_CONFIG_DELIMIT, persistFuncs);
if (aOptions.mEnable) {
configFuncs.Clear();
configFuncs.AppendElement(nsCString(USB_FUNCTION_RNDIS));
if (persistFuncs.Contains(nsCString(USB_FUNCTION_ADB))) {
configFuncs.AppendElement(nsCString(USB_FUNCTION_ADB));
}
} else {
// We're turning rndis off, revert back to the persist setting.
// adb will already be correct there, so we don't need to do any
// further adjustments.
configFuncs = persistFuncs;
}
char newConfig[PROPERTY_VALUE_MAX] = "";
property_get(SYS_USB_CONFIG_PROPERTY, currentConfig, nullptr);
join(configFuncs, USB_CONFIG_DELIMIT, PROPERTY_VALUE_MAX, newConfig);
if (strcmp(currentConfig, newConfig)) {
property_set(SYS_USB_CONFIG_PROPERTY, newConfig);
}
// Trigger the timer to check usb state and report the result to NetworkManager.
if (report) {
usleep(USB_FUNCTION_RETRY_INTERVAL * 1000);
return checkUsbRndisState(aOptions);
}
return SUCCESS;
}
/**
* handling upstream interface change event.
*/
CommandResult NetworkUtils::updateUpStream(NetworkParams& aOptions)
{
RUN_CHAIN(aOptions, sUpdateUpStreamChain, updateUpStreamFail)
return CommandResult::Pending();
}
void NetworkUtils::sendBroadcastMessage(uint32_t code, char* reason)
{
NetworkResultOptions result;
switch(code) {
case NETD_COMMAND_INTERFACE_CHANGE:
result.mTopic = NS_ConvertUTF8toUTF16("netd-interface-change");
break;
case NETD_COMMAND_BANDWIDTH_CONTROLLER:
result.mTopic = NS_ConvertUTF8toUTF16("netd-bandwidth-control");
break;
default:
return;
}
result.mBroadcast = true;
result.mReason = NS_ConvertUTF8toUTF16(reason);
postMessage(result);
}
inline uint32_t NetworkUtils::netdResponseType(uint32_t code)
{
return (code / 100) * 100;
}
inline bool NetworkUtils::isBroadcastMessage(uint32_t code)
{
uint32_t type = netdResponseType(code);
return type == NETD_COMMAND_UNSOLICITED;
}
inline bool NetworkUtils::isError(uint32_t code)
{
uint32_t type = netdResponseType(code);
return type != NETD_COMMAND_PROCEEDING && type != NETD_COMMAND_OKAY;
}
inline bool NetworkUtils::isComplete(uint32_t code)
{
uint32_t type = netdResponseType(code);
return type != NETD_COMMAND_PROCEEDING;
}
inline bool NetworkUtils::isProceeding(uint32_t code)
{
uint32_t type = netdResponseType(code);
return type == NETD_COMMAND_PROCEEDING;
}
void NetworkUtils::dumpParams(NetworkParams& aOptions, const char* aType)
{
#ifdef _DEBUG
DEBUG("Dump params:");
DEBUG(" ifname: %s", GET_CHAR(mIfname));
DEBUG(" ip: %s", GET_CHAR(mIp));
DEBUG(" link: %s", GET_CHAR(mLink));
DEBUG(" prefix: %s", GET_CHAR(mPrefix));
DEBUG(" wifiStartIp: %s", GET_CHAR(mWifiStartIp));
DEBUG(" wifiEndIp: %s", GET_CHAR(mWifiEndIp));
DEBUG(" usbStartIp: %s", GET_CHAR(mUsbStartIp));
DEBUG(" usbEndIp: %s", GET_CHAR(mUsbEndIp));
DEBUG(" dnsserver1: %s", GET_CHAR(mDns1));
DEBUG(" dnsserver2: %s", GET_CHAR(mDns2));
DEBUG(" internalIfname: %s", GET_CHAR(mInternalIfname));
DEBUG(" externalIfname: %s", GET_CHAR(mExternalIfname));
if (!strcmp(aType, "WIFI")) {
DEBUG(" wifictrlinterfacename: %s", GET_CHAR(mWifictrlinterfacename));
DEBUG(" ssid: %s", GET_CHAR(mSsid));
DEBUG(" security: %s", GET_CHAR(mSecurity));
DEBUG(" key: %s", GET_CHAR(mKey));
}
#endif
}
#undef GET_CHAR
#undef GET_FIELD
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