diff options
Diffstat (limited to 'app/src/fil/libre/repwifiapp/helpers/Engine.java')
| -rw-r--r-- | app/src/fil/libre/repwifiapp/helpers/Engine.java | 859 |
1 files changed, 430 insertions, 429 deletions
diff --git a/app/src/fil/libre/repwifiapp/helpers/Engine.java b/app/src/fil/libre/repwifiapp/helpers/Engine.java index 5a2f2b2..68d8745 100644 --- a/app/src/fil/libre/repwifiapp/helpers/Engine.java +++ b/app/src/fil/libre/repwifiapp/helpers/Engine.java @@ -20,449 +20,450 @@ package fil.libre.repwifiapp.helpers; +import java.net.NetworkInterface; +import java.net.SocketException; import java.util.ArrayList; +import java.util.Enumeration; import fil.libre.repwifiapp.Commons; +public abstract class Engine implements IEngine { -public abstract class Engine implements IEngine{ - - public static final String DNS1 = "193.183.98.154"; - public static final String DNS2 = "87.98.175.85"; - - protected String getCmdWpaSup(){ - return "wpa_supplicant -B -dd -i" + Commons.INTERFACE_NAME + " -C\"" +Commons.SOCKET_DIR + "\" -P\"" + Commons.PID_FILE + "\""; - } - - protected String getCmdWpaCli() { - return "wpa_cli -p" + Commons.SOCKET_DIR + " -P" + Commons.PID_FILE + " -i" + Commons.INTERFACE_NAME; - } - - protected abstract String getCmdWpaStart(); - - public boolean deleteFileIfExists(String filePath){ - - if (filePath == null){ - return false; - } - - if (filePath.contains("*")){ - //it's safer to reject bulk rm'ing - return false; - } - - if (filePath.contains(" -r ")){ - //only file rm'ing acceppted - return false; - } - - //needs root (it only gets used by the 4p2 engine, working in /data/misc/wifi) - return executeRootCmd("if [ -e \""+ filePath + "\" ]; then rm \"" + filePath + "\"; fi"); - - } - - public boolean chmodFile(String filePath, String mod){ - //needs root (chmod) - return executeRootCmd("chmod " + mod + " \"" + filePath + "\""); - } - - @Override - public boolean killPreviousConnections() { - - //needs root (for killall) - - Utils.logDebug("killing wpa_supplicant..:"); - if (executeRootCmd("killall -SIGINT wpa_supplicant")){ - Utils.logDebug("Killed wpa_supplicant"); - }else{ - Utils.logDebug("Wpa_supplicant NOT killed."); - } - - Utils.logDebug("killing dhcpcd.."); - if (executeRootCmd("killall -SIGINT dhcpcd")){ - Utils.logDebug("Killed dhcpcd"); - }else{ - Utils.logDebug("dhcpcd NOT killed."); - } - - - return true; - - } - - @Override - public boolean clearWorkingDir(){ - - //needs root (to work within /data/misc/wifi) - - Utils.logDebug("clearWorkingDir():"); - - if (executeRootCmd("rm -r " + Commons.SOCKET_DIR)){ - Utils.logDebug("removed socket dir"); - } - - if (executeRootCmd("rm " + Commons.ENTROPY_FILE)){ - Utils.logDebug("removed entropy file"); - } - - if (executeRootCmd("rm " + Commons.PID_FILE)){ - Utils.logDebug("removed pidfile"); - } - - if (executeRootCmd("rm " + Commons.SOFTAP_FILE)){ - Utils.logDebug("removed softap file"); - } - - if (executeRootCmd("rm " + Commons.WPA_CONF)){ - Utils.logDebug("removed wpa conf file"); - } - - if (executeRootCmd("rm " + Commons.P2P_CONF)){ - Utils.logDebug("removed p2p conf file"); - } - - - return true; - - } - - @Override - public boolean startWpaSupplicant(){ - - Utils.logDebug("startWpaSupplicant():"); - - //needs root (for wpa_supplicant) - if (executeRootCmd(getCmdWpaSup())){ - return true; - }else{ - Utils.logDebug("Failed to start wpa"); - return false; - } - - } - - @Override - public AccessPointInfo[] getAvailableNetworks(){ - - Utils.logDebug("getAvailableNetworks():"); - - killPreviousConnections(); - - //is it really necessary??? --- Fil - if (! clearWorkingDir()){ - Utils.logError("Failed clearing dir"); - return null; - } - - if (! startWpaSupplicant()){ - Utils.logError("Failed starting wpa_supplicant"); - return null; - } - - if (! createScanScripts()){ - Utils.logError("Failed creating scripts"); - return null; - } - - if (! scanNetworks()){ - Utils.logError("failed scanning networks"); - return null; - } - - if (!getScanResults()){ - Utils.logError("failed getting scan results"); - return null; - } - - //chmod 664 scan_file to make it readable - if (!chmodFile(Commons.getScanFile(), "664")){ - Utils.logError("failed chmodding scan_file"); - return null; - } - - AccessPointInfo[] a = AccessPointInfo.parseScanResult(Commons.getScanFile()); - if (a == null){ - Utils.logError("Unable to parse scan file into AccessPointInfo array"); - } - - return a; - - } - - @Override - public abstract boolean connect(AccessPointInfo info); - - @Override - public boolean disconnect(){ - - //needs root (for wpa_cli) - - if (! isWpaSupplicantRunning()){ - return true; - } - - try { - - RootCommand su = new RootCommand(getCmdWpaCli() + " disconnect"); - if (su.execute() == 0){ - String out = su.getOutput(); - if (out != null && out.trim().replace("\n", "").equals("OK")){ - return true; - }else { - return false; - } - } - else{ - return false; - } - - } catch (Exception e) { - Utils.logError("Error while enabling network", e); - return false; - } - } - - /*** - * returns null if unable to determine connection status for any reason. - */ - @Override - public ConnectionStatus getConnectionStatus(){ - - Utils.logDebug("called getConnecitonStatus()"); - if (! isWpaSupplicantRunning()){ - //wpa_supplicant is not running. - //unable to determin status. - Utils.logDebug("wpa not running, cannot get connection status."); - return null; - - } - - try { - - RootCommand su = new RootCommand(getCmdWpaCli() + " status"); - if(su.execute() == 0){ - String out = su.getOutput(); - if (out == null || out.trim().equals("")){ - return null; - } - else { - return ConnectionStatus.parseWpaCliOutput(out); - } - } - else { - return null; - } - - } catch (Exception e) { - Utils.logError("Error while executing wpa_cli status", e); - return null; - } - - } - - @Override - public boolean isInterfaceAvailable(String ifaceName){ - - String[]ifaces = getAvailableInterfaces(); - if(ifaces == null || ifaces.length == 0){ - return false; - } - - for(String name : ifaces){ - if (name.equals(ifaceName)){ - return true; - } - } - - return false; - } - - @Override - public String[] getAvailableInterfaces(){ - - try { - - ShellCommand cmd = new ShellCommand("ip link"); - if (cmd.execute() == 0){ - - String out = cmd.getOutput(); - if (out == null || out.contains("\n") == false){ - Utils.logDebug("No out from ip link"); - return null; - } - - ArrayList<String> list = new ArrayList<String>(); - - String[] lines = out.split("\n"); - for (String l : lines){ - - String[] fields = l.split(":"); - if (fields.length != 3){ - continue; - } - - String interfName = fields[1].trim(); - list.add(interfName); - - } - - String[] retArr = new String[list.size()]; - retArr = list.toArray(retArr); - - return retArr; - - } - else{ - return null; - } - - } catch (Exception e) { - Utils.logError("Error while querying ip link", e); - return null; - } - - } - - public boolean runDhcpcd(){ - - //needs root - return executeRootCmd("dhcpcd " + Commons.INTERFACE_NAME); - - } - - public boolean interfaceUp(){ - //needs root (tested) - return executeRootCmd("ifconfig " + Commons.INTERFACE_NAME + " up"); - } - - protected boolean executeCmd(String cmd){ - - try { - - ShellCommand c = new ShellCommand(cmd); - if ( c.execute() == 0){ - return true; - }else { - return false; - } - - } catch (Exception e) { - Utils.logError("Error executing \"" + cmd + "\"",e); - return false; - } - - } - - protected boolean executeRootCmd(String cmd){ - - try { - - RootCommand c = new RootCommand(cmd); - if ( c.execute() == 0){ - return true; - }else { - return false; - } - - } catch (Exception e) { - Utils.logError("Error executing \"" + cmd + "\"",e); - return false; - } - } - - protected boolean isWpaSupplicantRunning(){ - - boolean retval = false; - - try { - - RootCommand su = new RootCommand("pidof wpa_supplicant"); - if (su.execute() == 0){ - - if (su.getOutput().trim().equals("")){ - retval = false; - }else{ - retval = true; - } - - }else { - retval = false; - } - - - } catch (Exception e) { - Utils.logError("Exception during isWpaSupplicantRunning()",e); - retval = false; - } - - return retval; - - } - - protected boolean scanNetworks(){ - - //needs root (for wpa_supplicant and wpa_cli) - return executeRootCmd("bash " + Commons.getScriptScan()); - - } - - protected boolean getScanResults(){ - - //needs root (for wpa_supplicant and wpa_cli) - return executeRootCmd("bash " + Commons.getScriptScanRes()); - - } - - protected boolean createScanScripts(){ - - try { - - String scan = getCmdWpaCli() + " scan\n" + - "if [ $? -ne 0 ]; then\n" + - "exit 1\n" + - "fi\n" + - "sleep 2s\n"; - - String scanRes = "if [ -e \"" + Commons.getScanFile() + "\" ]; then\n" + - " rm \"" + Commons.getScanFile() + "\"\n" + - "fi\n" + - getCmdWpaCli() + " scan_results > \""+ Commons.getScanFile() + "\"\n" + - "if [ $? -ne 0 ]; then\n" + - " exit 1\n" + - "fi\n" + - "sleep 1s\n"; + protected String getCmdWpaSup() { + return "wpa_supplicant -B -dd -i" + Commons.INTERFACE_NAME + " -C" + Commons.SOCKET_DIR + + " -P" + Commons.PID_FILE + " -I" + Commons.OVERLAY_FILE + " -e" + + Commons.ENTROPY_FILE; + } - - if (! Utils.writeFile(Commons.getScriptScan(),scan,true) ){ + protected String getCmdWpaCli() { + return "wpa_cli -p" + Commons.SOCKET_DIR + " -P" + Commons.PID_FILE + " -i" + + Commons.INTERFACE_NAME; + } - Exception e = Utils.getLastException(); - if (e != null){ - Utils.logError("Error while writing scan script.",e); - } + protected abstract String getCmdWpaStart(); - return false; - } + public boolean deleteFileIfExists(String filePath) { - - if (! Utils.writeFile(Commons.getScriptScanRes(),scanRes,true) ){ + if (filePath == null) { + return false; + } - Exception e = Utils.getLastException(); - if (e != null){ - Utils.logError("Error while writing getScanResults script.",e); - } + if (filePath.contains("*")) { + // it's safer to reject bulk rm'ing + return false; + } - return false; - } + if (filePath.contains(" -r ")) { + // only file rm'ing acceppted + return false; + } + // needs root (it only gets used by the 4p2 engine, working in + // /data/misc/wifi) + return executeRootCmd("if [ -e \"" + filePath + "\" ]; then rm \"" + filePath + "\"; fi"); - return true; + } - } catch (Exception e) { + public boolean chmodFile(String filePath, String mod) { + // needs root (chmod) + return executeRootCmd("chmod " + mod + " \"" + filePath + "\""); + } - Utils.logError("Error while creating the scanning script.",e); - return false; - } + @Override + public boolean killBackEndProcesses() { - } - + // needs root (for killall) + + Utils.logDebug("killing wpa_supplicant..:"); + if (executeRootCmd("killall -SIGINT wpa_supplicant")) { + Utils.logDebug("Killed wpa_supplicant"); + } else { + Utils.logDebug("Wpa_supplicant NOT killed."); + } + + Utils.logDebug("killing dhcpcd.."); + if (executeRootCmd("killall -SIGINT dhcpcd")) { + Utils.logDebug("Killed dhcpcd"); + } else { + Utils.logDebug("dhcpcd NOT killed."); + } + + return true; + + } + + @Override + public boolean clearWorkingDir() { + + // needs root (to work within /data/misc/wifi) + + Utils.logDebug("clearWorkingDir():"); + + if (executeRootCmd("rm -r " + Commons.SOCKET_DIR)) { + Utils.logDebug("removed socket dir"); + } + + if (executeRootCmd("rm " + Commons.ENTROPY_FILE)) { + Utils.logDebug("removed entropy file"); + } + + if (executeRootCmd("rm " + Commons.PID_FILE)) { + Utils.logDebug("removed pidfile"); + } + + if (executeRootCmd("rm " + Commons.SOFTAP_FILE)) { + Utils.logDebug("removed softap file"); + } + + if (executeRootCmd("rm " + Commons.WPA_CONF)) { + Utils.logDebug("removed wpa conf file"); + } + + if (executeRootCmd("rm " + Commons.P2P_CONF)) { + Utils.logDebug("removed p2p conf file"); + } + + return true; + + } + + @Override + public boolean startWpaSupplicant() { + + Utils.logDebug("startWpaSupplicant():"); + + // needs root (for wpa_supplicant) + if (executeRootCmd(getCmdWpaSup())) { + return true; + } else { + Utils.logDebug("Failed to start wpa"); + return false; + } + + } + + @Override + public AccessPointInfo[] getAvailableNetworks() { + + Utils.logDebug("getAvailableNetworks():"); + + // killPreviousConnections(); + + // Is it really necessary??? + // seems that clearing /data/misc/wifi is NOT necessary + // so, commented out - Fil 2017-03-24 + /* + * if (! clearWorkingDir()){ Utils.logError("Failed clearing dir"); + * return null; } + */ + + if (!startWpaSupplicant()) { + Utils.logError("Failed starting wpa_supplicant"); + return null; + } + + if (!createScanScripts()) { + Utils.logError("Failed creating scripts"); + return null; + } + + if (!scanNetworks()) { + Utils.logError("failed scanning networks"); + return null; + } + + if (!getScanResults()) { + Utils.logError("failed getting scan results"); + return null; + } + + // chmod 664 scan_file to make it readable + /* + * if (!chmodFile(Commons.getScanFile(), "664")){ + * Utils.logError("failed chmodding scan_file"); return null; } + */ + + AccessPointInfo[] a = AccessPointInfo.parseScanResult(Commons.getScanFile()); + if (a == null) { + Utils.logError("Unable to parse scan file into AccessPointInfo array"); + return a; + } + + Utils.logDebug("# of APs found: " + a.length); + + return a; + + } + + @Override + public abstract boolean connect(AccessPointInfo info); + + @Override + public boolean disconnect() { + + // needs root (for wpa_cli) + + if (!isWpaSupplicantRunning()) { + return true; + } + + try { + + RootCommand su = new RootCommand(getCmdWpaCli() + " disconnect"); + if (su.execute() == 0) { + String out = su.getOutput(); + if (out != null && out.trim().replace("\n", "").equals("OK")) { + return true; + } else { + return false; + } + } else { + return false; + } + + } catch (Exception e) { + Utils.logError("Error while enabling network", e); + return false; + } + } + + /*** + * returns null if unable to determine connection status for any reason. + */ + @Override + public ConnectionStatus getConnectionStatus() { + + Utils.logDebug("called getConnecitonStatus()"); + if (!isWpaSupplicantRunning()) { + // wpa_supplicant is not running. + // unable to determin status. + Utils.logDebug("wpa not running, cannot get connection status."); + return null; + + } + + try { + + RootCommand su = new RootCommand(getCmdWpaCli() + " status"); + if (su.execute() == 0) { + String out = su.getOutput(); + if (out == null || out.trim().equals("")) { + return null; + } else { + return ConnectionStatus.parseWpaCliOutput(out); + } + } else { + return null; + } + + } catch (Exception e) { + Utils.logError("Error while executing wpa_cli status", e); + return null; + } + + } + + @Override + public boolean isInterfaceAvailable(String ifaceName) throws SocketException { + + /* + * String[]ifaces = getAvailableInterfaces(); if(ifaces == null || + * ifaces.length == 0){ return false; } + * + * for(String name : ifaces){ + * + * if (name.equals(ifaceName)){ return true; } } + * + * return false; + */ + + Enumeration<NetworkInterface> interfaces = NetworkInterface.getNetworkInterfaces(); + while (interfaces.hasMoreElements()) { + NetworkInterface nif = interfaces.nextElement(); + String nm = nif.getName(); + if (nm.equals(ifaceName)) { + return true; + } + } + return false; + + } + + @Override + public String[] getAvailableInterfaces() { + + try { + + // No need for root for "ip link" + // tested 2017-03-24 - Fil + ShellCommand cmd = new ShellCommand("ip link"); + if (cmd.execute() == 0) { + + String out = cmd.getOutput(); + if (out == null || out.contains("\n") == false) { + Utils.logDebug("No out from ip link"); + return null; + } + + ArrayList<String> list = new ArrayList<String>(); + + String[] lines = out.split("\n"); + for (String l : lines) { + + String[] fields = l.split(":"); + if (fields.length != 3) { + continue; + } + + String interfName = fields[1].trim(); + list.add(interfName); + + } + + String[] retArr = new String[list.size()]; + retArr = list.toArray(retArr); + + return retArr; + + } else { + return null; + } + + } catch (Exception e) { + Utils.logError("Error while querying ip link", e); + return null; + } + + } + + public boolean runDhcpcd() { + + // needs root + return executeRootCmd("dhcpcd " + Commons.INTERFACE_NAME); + + } + + public boolean interfaceUp() { + // needs root (tested) + return executeRootCmd("ifconfig " + Commons.INTERFACE_NAME + " up"); + } + + /* + * protected boolean executeCmd(String cmd){ + * + * try { + * + * ShellCommand c = new ShellCommand(cmd); if ( c.execute() == 0){ return + * true; }else { return false; } + * + * } catch (Exception e) { Utils.logError("Error executing \"" + cmd + + * "\"",e); return false; } + * + * } + */ + + protected boolean executeRootCmd(String cmd) { + + try { + + RootCommand c = new RootCommand(cmd); + if (c.execute() == 0) { + return true; + } else { + return false; + } + + } catch (Exception e) { + Utils.logError("Error executing \"" + cmd + "\"", e); + return false; + } + } + + protected boolean isWpaSupplicantRunning() { + + boolean retval = false; + + try { + + RootCommand su = new RootCommand("pidof wpa_supplicant"); + if (su.execute() == 0) { + + if (su.getOutput().trim().equals("")) { + retval = false; + } else { + retval = true; + } + + } else { + retval = false; + } + + } catch (Exception e) { + Utils.logError("Exception during isWpaSupplicantRunning()", e); + retval = false; + } + + return retval; + + } + + protected boolean scanNetworks() { + + // needs root (for wpa_supplicant and wpa_cli) + return executeRootCmd("bash " + Commons.getScriptScan()); + + } + + protected boolean getScanResults() { + + // needs root (for wpa_supplicant and wpa_cli) + boolean res = executeRootCmd("bash " + Commons.getScriptScanRes()); + if (!res) { + return false; + } + return res; + + } + + protected boolean createScanScripts() { + + try { + + String scan = getCmdWpaCli() + " scan\n" + "if [ $? -ne 0 ]; then\n" + "exit 1\n" + + "fi\n" + "sleep 2s\n"; + + String scanRes = "if [ -e \"" + Commons.getScanFile() + "\" ]; then\n" + " rm \"" + + Commons.getScanFile() + "\"\n" + "fi\n" + getCmdWpaCli() + + " scan_results > \"" + Commons.getScanFile() + "\"\n" + + "if [ $? -ne 0 ]; then\n" + " exit 1\n" + "fi\n"; + + if (!Utils.writeFile(Commons.getScriptScan(), scan, true)) { + + Exception e = Utils.getLastException(); + if (e != null) { + Utils.logError("Error while writing scan script.", e); + } + + return false; + } + + if (!Utils.writeFile(Commons.getScriptScanRes(), scanRes, true)) { + + Exception e = Utils.getLastException(); + if (e != null) { + Utils.logError("Error while writing getScanResults script.", e); + } + + return false; + } + + return true; + + } catch (Exception e) { + + Utils.logError("Error while creating the scanning script.", e); + return false; + } + + } } |