The Tor Browser: dom/system/gonk/NetworkUtils.cpp@b8a032363ba2 (annotated)

dom/system/gonk/NetworkUtils.cpp@b8a032363ba2 (annotated)

dom/system/gonk/NetworkUtils.cpp

Thu, 22 Jan 2015 13:21:57 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Thu, 22 Jan 2015 13:21:57 +0100
branch: TOR_BUG_9701
changeset 15: b8a032363ba2
permissions: -rw-r--r--

Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6

 /* 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 <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 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)
 static NetworkUtils* gNetworkUtils;
 static nsTArray<QueueData> gCommandQueue;
 static CurrentCommand gCurrentCommand;
 static bool gPending = false;
 static nsTArray<nsCString> gReason;
 CommandFunc NetworkUtils::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::sWifiDisableChain[] = {
   NetworkUtils::stopSoftAP,
   NetworkUtils::stopAccessPointDriver,
   NetworkUtils::wifiFirmwareReload,
   NetworkUtils::untetherInterface,
   NetworkUtils::preTetherInterfaceList,
   NetworkUtils::postTetherInterfaceList,
   NetworkUtils::disableNat,
   NetworkUtils::setIpForwardingEnabled,
   NetworkUtils::stopTethering,
   NetworkUtils::wifiTetheringSuccess
 };
 CommandFunc NetworkUtils::sWifiFailChain[] = {
   NetworkUtils::stopSoftAP,
   NetworkUtils::setIpForwardingEnabled,
   NetworkUtils::stopTethering
 };
 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::sNetworkInterfaceStatsChain[] = {
   NetworkUtils::getRxBytes,
   NetworkUtils::getTxBytes,
   NetworkUtils::networkInterfaceStatsSuccess
 };
 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;
 }
 /**
  * Helper function to find the best match gateway. For now, return
  * the gateway that matches the address family passed.
  */
 static uint32_t selectGateway(nsTArray<nsString>& gateways, int addrFamily)
 {
   uint32_t length = gateways.Length();
   for (uint32_t i = 0; i < length; i++) {
     NS_ConvertUTF16toUTF8 autoGateway(gateways[i]);
     if ((getIpType(autoGateway.get()) == AF_INET && addrFamily == AF_INET) ||
         (getIpType(autoGateway.get()) == AF_INET6 && addrFamily == AF_INET6)) {
       return i;
     }
   }
   return length; // invalid index.
 }
 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);
 }
 /**
  * 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::getRxBytes(CommandChain* aChain,
                               CommandCallback aCallback,
                               NetworkResultOptions& aResult)
 {
   char command[MAX_COMMAND_SIZE];
   snprintf(command, MAX_COMMAND_SIZE - 1, "interface readrxcounter %s", GET_CHAR(mIfname));
   doCommand(command, aChain, aCallback);
 }
 void NetworkUtils::getTxBytes(CommandChain* aChain,
                               CommandCallback aCallback,
                               NetworkResultOptions& aResult)
 {
   NetworkParams& options = aChain->getParams();
   options.mRxBytes = atof(NS_ConvertUTF16toUTF8(aResult.mResultReason).get());
   char command[MAX_COMMAND_SIZE];
   snprintf(command, MAX_COMMAND_SIZE - 1, "interface readtxcounter %s", GET_CHAR(mIfname));
   doCommand(command, aChain, aCallback);
 }
 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)
   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::networkInterfaceStatsFail(NetworkParams& aOptions, NetworkResultOptions& aResult)
 {
   postMessage(aOptions, aResult);
 }
 void NetworkUtils::networkInterfaceStatsSuccess(CommandChain* aChain,
                                                 CommandCallback aCallback,
                                                 NetworkResultOptions& aResult)
 {
   ASSIGN_FIELD(mRxBytes)
   ASSIGN_FIELD_VALUE(mTxBytes, atof(NS_ConvertUTF16toUTF8(aResult.mResultReason).get()))
   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
 void NetworkUtils::ExecuteCommand(NetworkParams aOptions)
 {
   bool ret = true;
   if (aOptions.mCmd.EqualsLiteral("removeNetworkRoute")) {
     removeNetworkRoute(aOptions);
   } else if (aOptions.mCmd.EqualsLiteral("setDNS")) {
     setDNS(aOptions);
   } else if (aOptions.mCmd.EqualsLiteral("setDefaultRouteAndDNS")) {
     setDefaultRouteAndDNS(aOptions);
   } else if (aOptions.mCmd.EqualsLiteral("removeDefaultRoute")) {
     removeDefaultRoute(aOptions);
   } else if (aOptions.mCmd.EqualsLiteral("addHostRoute")) {
     addHostRoute(aOptions);
   } else if (aOptions.mCmd.EqualsLiteral("removeHostRoute")) {
     removeHostRoute(aOptions);
   } else if (aOptions.mCmd.EqualsLiteral("removeHostRoutes")) {
     removeHostRoutes(aOptions);
   } else if (aOptions.mCmd.EqualsLiteral("addSecondaryRoute")) {
     addSecondaryRoute(aOptions);
   } else if (aOptions.mCmd.EqualsLiteral("removeSecondaryRoute")) {
     removeSecondaryRoute(aOptions);
   } else if (aOptions.mCmd.EqualsLiteral("getNetworkInterfaceStats")) {
     getNetworkInterfaceStats(aOptions);
   } else if (aOptions.mCmd.EqualsLiteral("setNetworkInterfaceAlarm")) {
     setNetworkInterfaceAlarm(aOptions);
   } else if (aOptions.mCmd.EqualsLiteral("enableNetworkInterfaceAlarm")) {
     enableNetworkInterfaceAlarm(aOptions);
   } else if (aOptions.mCmd.EqualsLiteral("disableNetworkInterfaceAlarm")) {
     disableNetworkInterfaceAlarm(aOptions);
   } else if (aOptions.mCmd.EqualsLiteral("setWifiOperationMode")) {
     setWifiOperationMode(aOptions);
   } else if (aOptions.mCmd.EqualsLiteral("setDhcpServer")) {
     setDhcpServer(aOptions);
   } else if (aOptions.mCmd.EqualsLiteral("setWifiTethering")) {
     setWifiTethering(aOptions);
   } else if (aOptions.mCmd.EqualsLiteral("setUSBTethering")) {
     setUSBTethering(aOptions);
   } else if (aOptions.mCmd.EqualsLiteral("enableUsbRndis")) {
     enableUsbRndis(aOptions);
   } else if (aOptions.mCmd.EqualsLiteral("updateUpStream")) {
     updateUpStream(aOptions);
   } else {
     WARN("unknon message");
     return;
   }
   if (!aOptions.mIsAsync) {
     NetworkResultOptions result;
     result.mRet = ret;
     postMessage(aOptions, result);
   }
 }
 /**
  * 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);
     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.
  */
 bool 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 true;
 }
 /**
  * Set DNS servers for given network interface.
  */
 bool 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 true;
 }
 /**
  * Set default route and DNS servers for given network interface.
  */
 bool NetworkUtils::setDefaultRouteAndDNS(NetworkParams& aOptions)
 {
   NS_ConvertUTF16toUTF8 autoIfname(aOptions.mIfname);
   if (!aOptions.mOldIfname.IsEmpty()) {
     // Remove IPv4's default route.
     mNetUtils->do_ifc_remove_default_route(GET_CHAR(mOldIfname));
     // Remove IPv6's default route.
     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) {
         mNetUtils->do_ifc_add_route(autoIfname.get(), "::", 0, autoGateway.get());
       } else { /* type == AF_INET */
         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 false;
     }
     if (type == AF_INET6) {
       mNetUtils->do_ifc_add_route(autoIfname.get(), "::", 0, gateway);
     } else { /* type == AF_INET */
       mNetUtils->do_ifc_set_default_route(autoIfname.get(), inet_addr(gateway));
     }
   }
   setDNS(aOptions);
   return true;
 }
 /**
  * Remove default route for given network interface.
  */
 bool 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 false;
     }
     mNetUtils->do_ifc_remove_route(GET_CHAR(mIfname),
                                    type == AF_INET ? "0.0.0.0" : "::",
 , autoGateway.get());
   }
   return true;
 }
 /**
  * Add host route for given network interface.
  */
 bool NetworkUtils::addHostRoute(NetworkParams& aOptions)
 {
   NS_ConvertUTF16toUTF8 autoIfname(aOptions.mIfname);
   int type, prefix;
   uint32_t length = aOptions.mHostnames.Length();
   for (uint32_t i = 0; i < length; i++) {
     NS_ConvertUTF16toUTF8 autoHostname(aOptions.mHostnames[i]);
     type = getIpType(autoHostname.get());
     if (type != AF_INET && type != AF_INET6) {
       continue;
     }
     uint32_t index = selectGateway(aOptions.mGateways, type);
     if (index >= aOptions.mGateways.Length()) {
       continue;
     }
     NS_ConvertUTF16toUTF8 autoGateway(aOptions.mGateways[index]);
     prefix = type == AF_INET ? 32 : 128;
     mNetUtils->do_ifc_add_route(autoIfname.get(), autoHostname.get(), prefix,
                                 autoGateway.get());
   }
   return true;
 }
 /**
  * Remove host route for given network interface.
  */
 bool NetworkUtils::removeHostRoute(NetworkParams& aOptions)
 {
   NS_ConvertUTF16toUTF8 autoIfname(aOptions.mIfname);
   int type, prefix;
   uint32_t length = aOptions.mHostnames.Length();
   for (uint32_t i = 0; i < length; i++) {
     NS_ConvertUTF16toUTF8 autoHostname(aOptions.mHostnames[i]);
     type = getIpType(autoHostname.get());
     if (type != AF_INET && type != AF_INET6) {
       continue;
     }
     uint32_t index = selectGateway(aOptions.mGateways, type);
     if (index >= aOptions.mGateways.Length()) {
       continue;
     }
     NS_ConvertUTF16toUTF8 autoGateway(aOptions.mGateways[index]);
     prefix = type == AF_INET ? 32 : 128;
     mNetUtils->do_ifc_remove_route(autoIfname.get(), autoHostname.get(), prefix,
                                    autoGateway.get());
   }
   return true;
 }
 /**
  * Remove the routes associated with the named interface.
  */
 bool NetworkUtils::removeHostRoutes(NetworkParams& aOptions)
 {
   mNetUtils->do_ifc_remove_host_routes(GET_CHAR(mIfname));
   return true;
 }
 bool 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 false;
   }
   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 false;
     }
     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 false;
     }
     // Remove default route.
     mNetUtils->do_ifc_remove_route(autoIfname.get(), "::", 0, NULL);
     // Remove subnet route.
     mNetUtils->do_ifc_remove_route(autoIfname.get(), subnetStr, prefixLength, NULL);
     return true;
   }
   /* 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);
   mNetUtils->do_ifc_remove_default_route(autoIfname.get());
   mNetUtils->do_ifc_remove_route(autoIfname.get(), dst, prefixLength, gateway);
   return true;
 }
 bool 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 true;
 }
 bool 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 true;
 }
 bool NetworkUtils::getNetworkInterfaceStats(NetworkParams& aOptions)
 {
   DEBUG("getNetworkInterfaceStats: %s", GET_CHAR(mIfname));
   aOptions.mRxBytes = -1;
   aOptions.mTxBytes = -1;
   RUN_CHAIN(aOptions, sNetworkInterfaceStatsChain, networkInterfaceStatsFail);
   return  true;
 }
 bool NetworkUtils::setNetworkInterfaceAlarm(NetworkParams& aOptions)
 {
   DEBUG("setNetworkInterfaceAlarms: %s", GET_CHAR(mIfname));
   RUN_CHAIN(aOptions, sNetworkInterfaceSetAlarmChain, networkInterfaceAlarmFail);
   return true;
 }
 bool NetworkUtils::enableNetworkInterfaceAlarm(NetworkParams& aOptions)
 {
   DEBUG("enableNetworkInterfaceAlarm: %s", GET_CHAR(mIfname));
   RUN_CHAIN(aOptions, sNetworkInterfaceEnableAlarmChain, networkInterfaceAlarmFail);
   return true;
 }
 bool NetworkUtils::disableNetworkInterfaceAlarm(NetworkParams& aOptions)
 {
   DEBUG("disableNetworkInterfaceAlarms: %s", GET_CHAR(mIfname));
   RUN_CHAIN(aOptions, sNetworkInterfaceDisableAlarmChain, networkInterfaceAlarmFail);
   return true;
 }
 /**
  * handling main thread's reload Wifi firmware request
  */
 bool NetworkUtils::setWifiOperationMode(NetworkParams& aOptions)
 {
   DEBUG("setWifiOperationMode: %s %s", GET_CHAR(mIfname), GET_CHAR(mMode));
   RUN_CHAIN(aOptions, sWifiOperationModeChain, wifiOperationModeFail);
   return true;
 }
 /**
  * handling main thread's enable/disable WiFi Tethering request
  */
 bool NetworkUtils::setWifiTethering(NetworkParams& aOptions)
 {
   bool enable = aOptions.mEnable;
   IFProperties interfaceProperties;
   getIFProperties(GET_CHAR(mExternalIfname), interfaceProperties);
   if (strcmp(interfaceProperties.dns1, "")) {
     aOptions.mDns1 = NS_ConvertUTF8toUTF16(interfaceProperties.dns1);
   }
   if (strcmp(interfaceProperties.dns2, "")) {
     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 true;
 }
 bool NetworkUtils::setUSBTethering(NetworkParams& aOptions)
 {
   bool enable = aOptions.mEnable;
   IFProperties interfaceProperties;
   getIFProperties(GET_CHAR(mExternalIfname), interfaceProperties);
   if (strcmp(interfaceProperties.dns1, "")) {
     aOptions.mDns1 = NS_ConvertUTF8toUTF16(interfaceProperties.dns1);
   }
   if (strcmp(interfaceProperties.dns2, "")) {
     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 true;
 }
 void NetworkUtils::escapeQuote(nsCString& aString)
 {
   aString.ReplaceSubstring("\\", "\\\\");
   aString.ReplaceSubstring("\"", "\\\"");
 }
 void 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;
     postMessage(aOptions, result);
     retry = 0;
     return;
   }
   if (retry < USB_FUNCTION_RETRY_TIMES) {
     retry++;
     usleep(USB_FUNCTION_RETRY_INTERVAL * 1000);
     checkUsbRndisState(aOptions);
     return;
   }
   NetworkResultOptions result;
   result.mResult = false;
   postMessage(aOptions, result);
   retry = 0;
 }
 /**
  * Modify usb function's property to turn on USB RNDIS function
  */
 bool 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);
     checkUsbRndisState(aOptions);
   }
   return true;
 }
 /**
  * handling upstream interface change event.
  */
 bool NetworkUtils::updateUpStream(NetworkParams& aOptions)
 {
   RUN_CHAIN(aOptions, sUpdateUpStreamChain, updateUpStreamFail)
   return true;
 }
 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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dom/system/gonk/NetworkUtils.cpp@b8a032363ba2 (annotated)

dom/system/gonk/NetworkUtils.cpp