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<h1>m_ipmodem.cc</h1><a href="m__ipmodem_8cc.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">///</span>
<a name="l00002"></a>00002 <span class="comment"></span><span class="comment">/// \file m_ipmodem.cc</span>
<a name="l00003"></a>00003 <span class="comment"></span><span class="comment">/// Mode class for GPRS modem mode (using endpoints on</span>
<a name="l00004"></a>00004 <span class="comment"></span><span class="comment">/// modern devices)</span>
<a name="l00005"></a>00005 <span class="comment"></span><span class="comment">///</span>
<a name="l00006"></a>00006 <span class="comment"></span>
<a name="l00007"></a>00007 <span class="comment">/*</span>
<a name="l00008"></a>00008 <span class="comment"> Copyright (C) 2008-2010, Net Direct Inc. (http://www.netdirect.ca/)</span>
<a name="l00009"></a>00009 <span class="comment"></span>
<a name="l00010"></a>00010 <span class="comment"> This program is free software; you can redistribute it and/or modify</span>
<a name="l00011"></a>00011 <span class="comment"> it under the terms of the GNU General Public License as published by</span>
<a name="l00012"></a>00012 <span class="comment"> the Free Software Foundation; either version 2 of the License, or</span>
<a name="l00013"></a>00013 <span class="comment"> (at your option) any later version.</span>
<a name="l00014"></a>00014 <span class="comment"></span>
<a name="l00015"></a>00015 <span class="comment"> This program is distributed in the hope that it will be useful,</span>
<a name="l00016"></a>00016 <span class="comment"> but WITHOUT ANY WARRANTY; without even the implied warranty of</span>
<a name="l00017"></a>00017 <span class="comment"> MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.</span>
<a name="l00018"></a>00018 <span class="comment"></span>
<a name="l00019"></a>00019 <span class="comment"> See the GNU General Public License in the COPYING file at the</span>
<a name="l00020"></a>00020 <span class="comment"> root directory of this project for more details.</span>
<a name="l00021"></a>00021 <span class="comment">*/</span>
<a name="l00022"></a>00022
<a name="l00023"></a>00023 <span class="preprocessor">#include "<a class="code" href="m__ipmodem_8h.html" title="Mode class for GPRS modem mode (using endpoints on modern devices).">m_ipmodem.h</a>"</span>
<a name="l00024"></a>00024 <span class="preprocessor">#include "<a class="code" href="controller_8h.html" title="High level BlackBerry API class.">controller.h</a>"</span>
<a name="l00025"></a>00025 <span class="preprocessor">#include "<a class="code" href="data_8h.html" title="Class to deal with pre-saved data files.">data.h</a>"</span>
<a name="l00026"></a>00026 <span class="preprocessor">#include "debug.h"</span>
<a name="l00027"></a>00027 <span class="preprocessor">#include <sstream></span>
<a name="l00028"></a>00028 <span class="preprocessor">#include <string.h></span>
<a name="l00029"></a>00029 <span class="preprocessor">#include "sha1.h"</span>
<a name="l00030"></a>00030
<a name="l00031"></a>00031 <span class="keyword">namespace </span>Barry { <span class="keyword">namespace </span>Mode {
<a name="l00032"></a>00032
<a name="l00033"></a>00033 <span class="keyword">const</span> <span class="keywordtype">char</span> special_flag[] = { 0x78, 0x56, 0x34, 0x12 }; <span class="comment">// 0x12345678</span>
<a name="l00034"></a>00034 <span class="keyword">const</span> <span class="keywordtype">char</span> start[] = { 0x01, 0, 0, 0, 0x78, 0x56, 0x34, 0x12 };
<a name="l00035"></a>00035 <span class="keyword">const</span> <span class="keywordtype">char</span> pw_start[] = { 0x01, 0, 0, 0, 1, 0, 0, 0, 0x78, 0x56, 0x34, 0x12 };
<a name="l00036"></a>00036 <span class="keyword">const</span> <span class="keywordtype">char</span> stop[] = { 0x01, 0, 0, 0, 0, 0, 0, 0, 0x78, 0x56, 0x34, 0x12 };
<a name="l00037"></a>00037 <span class="comment"></span>
<a name="l00038"></a>00038 <span class="comment">//////////////////////////////////////////////////////////////////////////////</span>
<a name="l00039"></a>00039 <span class="comment"></span><span class="comment">// Mode::IpModem class</span>
<a name="l00040"></a>00040
<a name="l00041"></a>00041 IpModem::IpModem(Controller &con,
<a name="l00042"></a>00042 DeviceDataCallback callback,
<a name="l00043"></a>00043 <span class="keywordtype">void</span> *callback_context)
<a name="l00044"></a>00044 : m_con(con)
<a name="l00045"></a>00045 , m_dev(con.m_dev)
<a name="l00046"></a>00046 , m_continue_reading(false)
<a name="l00047"></a>00047 , m_callback(callback)
<a name="l00048"></a>00048 , m_callback_context(callback_context)
<a name="l00049"></a>00049 {
<a name="l00050"></a>00050 memset(m_session_key, 0, <span class="keyword">sizeof</span>(m_session_key));
<a name="l00051"></a>00051 }
<a name="l00052"></a>00052
<a name="l00053"></a>00053 IpModem::~IpModem()
<a name="l00054"></a>00054 {
<a name="l00055"></a>00055 <span class="keywordflow">try</span> {
<a name="l00056"></a>00056 Close();
<a name="l00057"></a>00057 } <span class="keywordflow">catch</span>( std::exception &e ) {
<a name="l00058"></a>00058 dout(<span class="stringliteral">"Exception caught in IpModem destructor, ignoring: "</span>
<a name="l00059"></a>00059 << e.what());
<a name="l00060"></a>00060 }
<a name="l00061"></a>00061 }
<a name="l00062"></a>00062
<a name="l00063"></a>00063 <span class="keywordtype">bool</span> IpModem::SendPassword( <span class="keyword">const</span> <span class="keywordtype">char</span> *password, uint32_t seed )
<a name="l00064"></a>00064 {
<a name="l00065"></a>00065 <span class="keywordflow">if</span>( !password || strlen(password) == 0 ) {
<a name="l00066"></a>00066 <span class="keywordflow">throw</span> BadPassword(<span class="stringliteral">"Logic error: No password provided in SendPassword."</span>, 0, <span class="keyword">false</span>);
<a name="l00067"></a>00067 }
<a name="l00068"></a>00068
<a name="l00069"></a>00069 <span class="keywordtype">int</span> read_ep = m_con.GetProbeResult().m_epModem.read;
<a name="l00070"></a>00070 <span class="keywordtype">int</span> write_ep = m_con.GetProbeResult().m_epModem.write;
<a name="l00071"></a>00071 <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> pwdigest[SHA_DIGEST_LENGTH];
<a name="l00072"></a>00072 <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> prefixedhash[SHA_DIGEST_LENGTH + 4];
<a name="l00073"></a>00073 <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> pw_response[SHA_DIGEST_LENGTH + 8];
<a name="l00074"></a>00074 uint32_t new_seed;
<a name="l00075"></a>00075 Data data;
<a name="l00076"></a>00076
<a name="l00077"></a>00077 <span class="keywordflow">if</span>( !password || strlen(password) == 0 ) {
<a name="l00078"></a>00078 <span class="keywordflow">throw</span> BadPassword(<span class="stringliteral">"No password provided."</span>, 0, <span class="keyword">false</span>);
<a name="l00079"></a>00079 }
<a name="l00080"></a>00080
<a name="l00081"></a>00081 <span class="comment">// Build the password hash</span>
<a name="l00082"></a>00082 <span class="comment">// first, hash the password by itself</span>
<a name="l00083"></a>00083 SHA1((<span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *) password, strlen(password), pwdigest);
<a name="l00084"></a>00084
<a name="l00085"></a>00085 <span class="comment">// prefix the resulting hash with the provided seed</span>
<a name="l00086"></a>00086 memcpy(&prefixedhash[0], &seed, <span class="keyword">sizeof</span>(uint32_t));
<a name="l00087"></a>00087 memcpy(&prefixedhash[4], pwdigest, SHA_DIGEST_LENGTH);
<a name="l00088"></a>00088
<a name="l00089"></a>00089 <span class="comment">// hash again</span>
<a name="l00090"></a>00090 SHA1((<span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *) prefixedhash, SHA_DIGEST_LENGTH + 4, pwdigest);
<a name="l00091"></a>00091
<a name="l00092"></a>00092 <span class="comment">// Build the response packet</span>
<a name="l00093"></a>00093 <span class="keyword">const</span> <span class="keywordtype">char</span> pw_rsphdr[] = { 0x03, 0x00, 0x00, 0x00 };
<a name="l00094"></a>00094 memcpy(&pw_response[0], pw_rsphdr, <span class="keyword">sizeof</span>(pw_rsphdr));
<a name="l00095"></a>00095 memcpy(&pw_response[4], pwdigest, SHA_DIGEST_LENGTH);
<a name="l00096"></a>00096 memcpy(&pw_response[24], special_flag, <span class="keyword">sizeof</span>(special_flag));
<a name="l00097"></a>00097
<a name="l00098"></a>00098 <span class="comment">// Send the password response packet</span>
<a name="l00099"></a>00099 m_dev.BulkWrite(write_ep, pw_response, <span class="keyword">sizeof</span>(pw_response));
<a name="l00100"></a>00100 m_dev.BulkRead(read_ep, data);
<a name="l00101"></a>00101 ddout(<span class="stringliteral">"IPModem: Read password response.\n"</span> << data);
<a name="l00102"></a>00102
<a name="l00103"></a>00103 <span class="comment">// Added for the BB Storm 9000's second password request</span>
<a name="l00104"></a>00104 <span class="keywordflow">if</span>( data.GetSize() >= 16 && data.GetData()[0] == 0x00 ) {
<a name="l00105"></a>00105 <span class="keywordflow">try</span> {
<a name="l00106"></a>00106 m_dev.BulkRead(read_ep, data, 500);
<a name="l00107"></a>00107 ddout(<span class="stringliteral">"IPModem: Null Response Packet:\n"</span> << data);
<a name="l00108"></a>00108 }
<a name="l00109"></a>00109 <span class="keywordflow">catch</span>( <a class="code" href="classUsb_1_1Timeout.html">Usb::Timeout</a> &to ) {
<a name="l00110"></a>00110 <span class="comment">// do nothing on timeouts</span>
<a name="l00111"></a>00111 ddout(<span class="stringliteral">"IPModem: Null Response Timeout"</span>);
<a name="l00112"></a>00112 }
<a name="l00113"></a>00113 }
<a name="l00114"></a>00114
<a name="l00115"></a>00115 <span class="comment">//</span>
<a name="l00116"></a>00116 <span class="comment">// check response 04 00 00 00 .......</span>
<a name="l00117"></a>00117 <span class="comment">// On the 8703e the seed is incremented, retries are reset to 10</span>
<a name="l00118"></a>00118 <span class="comment">// when the password is accepted.</span>
<a name="l00119"></a>00119 <span class="comment">//</span>
<a name="l00120"></a>00120 <span class="comment">// If data.GetData() + 4 is = to the orginal seed +1 or 00 00 00 00</span>
<a name="l00121"></a>00121 <span class="comment">// then the password was acceppted.</span>
<a name="l00122"></a>00122 <span class="comment">//</span>
<a name="l00123"></a>00123 <span class="comment">// When data.GetData() + 4 is not 00 00 00 00 then data.GetData()[8]</span>
<a name="l00124"></a>00124 <span class="comment">// contains the number of password retrys left.</span>
<a name="l00125"></a>00125 <span class="comment">//</span>
<a name="l00126"></a>00126 <span class="keywordflow">if</span>( data.GetSize() >= 9 && data.GetData()[0] == 0x04 ) {
<a name="l00127"></a>00127 memcpy(&new_seed, data.GetData() + 4, <span class="keyword">sizeof</span>(uint32_t));
<a name="l00128"></a>00128 seed++;
<a name="l00129"></a>00129 <span class="keywordflow">if</span>( seed == new_seed || new_seed == 0 ) {
<a name="l00130"></a>00130 ddout(<span class="stringliteral">"IPModem: Password accepted.\n"</span>);
<a name="l00131"></a>00131
<a name="l00132"></a>00132 <span class="preprocessor">#if SHA_DIGEST_LENGTH < SB_IPMODEM_SESSION_KEY_LENGTH</span>
<a name="l00133"></a>00133 <span class="preprocessor"></span><span class="preprocessor">#error Session key field must be smaller than SHA digest</span>
<a name="l00134"></a>00134 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
<a name="l00135"></a>00135 <span class="preprocessor"></span> <span class="comment">// Create session key - last 8 bytes of the password hash</span>
<a name="l00136"></a>00136 memcpy(&m_session_key[0],
<a name="l00137"></a>00137 pwdigest + SHA_DIGEST_LENGTH - <span class="keyword">sizeof</span>(m_session_key),
<a name="l00138"></a>00138 <span class="keyword">sizeof</span>(m_session_key));
<a name="l00139"></a>00139
<a name="l00140"></a>00140 <span class="comment">// blank password hashes as we don't need these anymore</span>
<a name="l00141"></a>00141 memset(pwdigest, 0, <span class="keyword">sizeof</span>(pwdigest));
<a name="l00142"></a>00142 memset(prefixedhash, 0, <span class="keyword">sizeof</span>(prefixedhash));
<a name="l00143"></a>00143 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00144"></a>00144 }
<a name="l00145"></a>00145 <span class="keywordflow">else</span> {
<a name="l00146"></a>00146 ddout(<span class="stringliteral">"IPModem: Invalid password.\n"</span> << data);
<a name="l00147"></a>00147 <span class="keywordflow">throw</span> BadPassword(<span class="stringliteral">"Password rejected by device."</span>, data.GetData()[8], <span class="keyword">false</span>);
<a name="l00148"></a>00148 }
<a name="l00149"></a>00149 }
<a name="l00150"></a>00150 <span class="comment">// Unknown packet</span>
<a name="l00151"></a>00151 ddout(<span class="stringliteral">"IPModem: Error unknown packet.\n"</span> << data);
<a name="l00152"></a>00152 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00153"></a>00153 }
<a name="l00154"></a>00154 <span class="comment"></span>
<a name="l00155"></a>00155 <span class="comment">//////////////////////////////////////////////////////////////////////////////</span>
<a name="l00156"></a>00156 <span class="comment"></span><span class="comment">// protected API / static functions</span>
<a name="l00157"></a>00157
<a name="l00158"></a>00158 <span class="keywordtype">void</span> *IpModem::DataReadThread(<span class="keywordtype">void</span> *userptr)
<a name="l00159"></a>00159 {
<a name="l00160"></a>00160 IpModem *ipmodem = (IpModem*) userptr;
<a name="l00161"></a>00161
<a name="l00162"></a>00162 <span class="keywordtype">int</span> read_ep = ipmodem->m_con.GetProbeResult().m_epModem.read;
<a name="l00163"></a>00163 Data data;
<a name="l00164"></a>00164
<a name="l00165"></a>00165 <span class="keywordflow">while</span>( ipmodem->m_continue_reading ) {
<a name="l00166"></a>00166
<a name="l00167"></a>00167 <span class="keywordflow">try</span> {
<a name="l00168"></a>00168
<a name="l00169"></a>00169 ipmodem->m_dev.BulkRead(read_ep, data, 5000);
<a name="l00170"></a>00170
<a name="l00171"></a>00171 <span class="comment">// is it a special code?</span>
<a name="l00172"></a>00172 <span class="keywordflow">if</span>( data.GetSize() > 4 &&
<a name="l00173"></a>00173 memcmp(data.GetData() + data.GetSize() - 4, special_flag, <span class="keyword">sizeof</span>(special_flag)) == 0 ) {
<a name="l00174"></a>00174 <span class="comment">// log, then drop it on the floor for now</span>
<a name="l00175"></a>00175 ddout(<span class="stringliteral">"IPModem: Special packet:\n"</span> << data);
<a name="l00176"></a>00176 <span class="keywordflow">continue</span>;
<a name="l00177"></a>00177 }
<a name="l00178"></a>00178
<a name="l00179"></a>00179 <span class="comment">// call callback if available</span>
<a name="l00180"></a>00180 <span class="keywordflow">if</span>( ipmodem->m_callback ) {
<a name="l00181"></a>00181 (*ipmodem->m_callback)(ipmodem->m_callback_context,
<a name="l00182"></a>00182 data.GetData(),
<a name="l00183"></a>00183 data.GetSize());
<a name="l00184"></a>00184 }
<a name="l00185"></a>00185 <span class="comment">// else {</span>
<a name="l00186"></a>00186 <span class="comment">// // append data to readCache</span>
<a name="l00187"></a>00187 <span class="comment">// FIXME;</span>
<a name="l00188"></a>00188 <span class="comment">// }</span>
<a name="l00189"></a>00189
<a name="l00190"></a>00190 }
<a name="l00191"></a>00191 <span class="keywordflow">catch</span>( <a class="code" href="classUsb_1_1Timeout.html">Usb::Timeout</a> &to ) {
<a name="l00192"></a>00192 <span class="comment">// do nothing on timeouts</span>
<a name="l00193"></a>00193 ddout(<span class="stringliteral">"IPModem: Timeout in DataReadThread!"</span>);
<a name="l00194"></a>00194 }
<a name="l00195"></a>00195 <span class="keywordflow">catch</span>( std::exception &e ) {
<a name="l00196"></a>00196 eout(<span class="stringliteral">"Exception in IpModem::DataReadThread: "</span> << e.what());
<a name="l00197"></a>00197 }
<a name="l00198"></a>00198 }
<a name="l00199"></a>00199
<a name="l00200"></a>00200 <span class="keywordflow">return</span> 0;
<a name="l00201"></a>00201 }
<a name="l00202"></a>00202 <span class="comment"></span>
<a name="l00203"></a>00203 <span class="comment">//////////////////////////////////////////////////////////////////////////////</span>
<a name="l00204"></a>00204 <span class="comment"></span><span class="comment">// public API</span>
<a name="l00205"></a>00205
<a name="l00206"></a>00206 <span class="keywordtype">void</span> IpModem::Open(<span class="keyword">const</span> <span class="keywordtype">char</span> *password)
<a name="l00207"></a>00207 {
<a name="l00208"></a>00208 <span class="keywordtype">int</span> read_ep = m_con.GetProbeResult().m_epModem.read;
<a name="l00209"></a>00209 <span class="keywordtype">int</span> write_ep = m_con.GetProbeResult().m_epModem.write;
<a name="l00210"></a>00210 <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> response[28];
<a name="l00211"></a>00211 uint32_t seed;
<a name="l00212"></a>00212 Data data;
<a name="l00213"></a>00213
<a name="l00214"></a>00214 <span class="comment">// check that we have endpoints for the modem</span>
<a name="l00215"></a>00215 <span class="keyword">const</span> <a class="code" href="structUsb_1_1EndpointPair.html">Usb::EndpointPair</a> &pair = m_con.GetProbeResult().m_epModem;
<a name="l00216"></a>00216 <span class="keywordflow">if</span>( !pair.IsComplete() ) {
<a name="l00217"></a>00217 std::ostringstream oss;
<a name="l00218"></a>00218 oss << <span class="stringliteral">"IP Modem not supported by this device: "</span>
<a name="l00219"></a>00219 << <span class="stringliteral">"read: "</span> << std::hex << (<span class="keywordtype">unsigned</span> int) pair.read
<a name="l00220"></a>00220 << <span class="stringliteral">" write: "</span> << std::hex << (<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>) pair.write
<a name="l00221"></a>00221 << <span class="stringliteral">" type: "</span> << std::hex << (<span class="keywordtype">unsigned</span> int) pair.type;
<a name="l00222"></a>00222 eout(oss.str());
<a name="l00223"></a>00223 <span class="keywordflow">throw</span> <a class="code" href="classBarry_1_1Error.html" title="The base class for any future derived exceptions.">Barry::Error</a>(oss.str());
<a name="l00224"></a>00224 }
<a name="l00225"></a>00225
<a name="l00226"></a>00226 <span class="comment">// clear halt when starting out</span>
<a name="l00227"></a>00227 m_dev.ClearHalt(pair.read);
<a name="l00228"></a>00228 m_dev.ClearHalt(pair.write);
<a name="l00229"></a>00229
<a name="l00230"></a>00230 <span class="comment">// Send stop command</span>
<a name="l00231"></a>00231 ddout(<span class="stringliteral">"IPModem: Sending Stop Response:\n"</span>);
<a name="l00232"></a>00232 m_dev.BulkWrite(write_ep, stop, <span class="keyword">sizeof</span>(stop));
<a name="l00233"></a>00233 <span class="keywordflow">try</span> {
<a name="l00234"></a>00234 m_dev.BulkRead(read_ep, data, 500);
<a name="l00235"></a>00235 ddout(<span class="stringliteral">"IPModem: Stop Response Packet:\n"</span> << data);
<a name="l00236"></a>00236 }
<a name="l00237"></a>00237 <span class="keywordflow">catch</span>( <a class="code" href="classUsb_1_1Timeout.html">Usb::Timeout</a> &to ) {
<a name="l00238"></a>00238 <span class="comment">// do nothing on timeouts</span>
<a name="l00239"></a>00239 ddout(<span class="stringliteral">"IPModem: Stop Response Timeout"</span>);
<a name="l00240"></a>00240 }
<a name="l00241"></a>00241
<a name="l00242"></a>00242 <span class="comment">// Send start commands to figure out if the device needs a password.</span>
<a name="l00243"></a>00243 ddout(<span class="stringliteral">"IPModem: Sending Start Response:\n"</span>);
<a name="l00244"></a>00244 m_dev.BulkWrite(write_ep, pw_start, <span class="keyword">sizeof</span>(pw_start));
<a name="l00245"></a>00245 m_dev.BulkRead(read_ep, data, 5000);
<a name="l00246"></a>00246 ddout(<span class="stringliteral">"IPModem: Start Response Packet:\n"</span> << data);
<a name="l00247"></a>00247
<a name="l00248"></a>00248 <span class="comment">// check for 02 00 00 00 SS SS SS SS RR 00 00 00 0a 00 00 00 PP PP PP PP PP 00 00 00 78 56 34 12</span>
<a name="l00249"></a>00249 <span class="keywordflow">if</span>( data.GetSize() >= 9 && data.GetData()[0] == 0x02 &&
<a name="l00250"></a>00250 memcmp(data.GetData() + data.GetSize() - 4, special_flag, <span class="keyword">sizeof</span>(special_flag))== 0 ) {
<a name="l00251"></a>00251 <span class="comment">// Got a password request packet</span>
<a name="l00252"></a>00252 ddout(<span class="stringliteral">"IPModem: Password request packet:\n"</span> << data);
<a name="l00253"></a>00253
<a name="l00254"></a>00254 <span class="comment">// Check how many retries are left</span>
<a name="l00255"></a>00255 <span class="keywordflow">if</span>( data.GetData()[8] < BARRY_MIN_PASSWORD_TRIES ) {
<a name="l00256"></a>00256 <span class="keywordflow">throw</span> BadPassword(<span class="stringliteral">"Fewer than "</span> BARRY_MIN_PASSWORD_TRIES_ASC <span class="stringliteral">" password tries remaining in device. Refusing to proceed, to avoid device zapping itself. Use a Windows client, or re-cradle the device."</span>,
<a name="l00257"></a>00257 data.GetData()[8],
<a name="l00258"></a>00258 <span class="keyword">true</span>);
<a name="l00259"></a>00259 }
<a name="l00260"></a>00260 memcpy(&seed, data.GetData() + 4, <span class="keyword">sizeof</span>(seed));
<a name="l00261"></a>00261 <span class="comment">// Send password</span>
<a name="l00262"></a>00262 <span class="keywordflow">if</span>( !SendPassword(password, seed) ) {
<a name="l00263"></a>00263 <span class="keywordflow">throw</span> <a class="code" href="classBarry_1_1Error.html" title="The base class for any future derived exceptions.">Barry::Error</a>(<span class="stringliteral">"IpModem: Error sending password."</span>);
<a name="l00264"></a>00264 }
<a name="l00265"></a>00265
<a name="l00266"></a>00266 <span class="comment">// Re-send "start" packet</span>
<a name="l00267"></a>00267 ddout(<span class="stringliteral">"IPModem: Re-sending Start Response:\n"</span>);
<a name="l00268"></a>00268 m_dev.BulkWrite(write_ep, pw_start, <span class="keyword">sizeof</span>(pw_start));
<a name="l00269"></a>00269 m_dev.BulkRead(read_ep, data);
<a name="l00270"></a>00270 ddout(<span class="stringliteral">"IPModem: Start Response Packet:\n"</span> << data);
<a name="l00271"></a>00271 }
<a name="l00272"></a>00272
<a name="l00273"></a>00273 <span class="comment">// send packet with the session_key</span>
<a name="l00274"></a>00274 <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> response_header[] = { 0x00, 0, 0, 0, 0, 0, 0, 0, 3, 0, 0, 0, 0, 0xc2, 1, 0 };
<a name="l00275"></a>00275 memcpy(&response[0], response_header, <span class="keyword">sizeof</span>(response_header));
<a name="l00276"></a>00276 memcpy(&response[16], m_session_key, <span class="keyword">sizeof</span>(m_session_key));
<a name="l00277"></a>00277 memcpy(&response[24], special_flag, <span class="keyword">sizeof</span>(special_flag));
<a name="l00278"></a>00278 ddout(<span class="stringliteral">"IPModem: Sending Session key:\n"</span>);
<a name="l00279"></a>00279 m_dev.BulkWrite(write_ep, response, <span class="keyword">sizeof</span>(response));
<a name="l00280"></a>00280 <span class="keywordflow">if</span>( data.GetSize() >= 16 ) {
<a name="l00281"></a>00281 <span class="keywordflow">switch</span>(data.GetData()[0])
<a name="l00282"></a>00282 {
<a name="l00283"></a>00283 <span class="keywordflow">case</span> 0x00: <span class="comment">// Null packet</span>
<a name="l00284"></a>00284 <span class="keywordflow">break</span>;
<a name="l00285"></a>00285
<a name="l00286"></a>00286 <span class="keywordflow">case</span> 0x02: <span class="comment">// password seed received</span>
<a name="l00287"></a>00287 memcpy(&seed, data.GetData() + 4, <span class="keyword">sizeof</span>(uint32_t));
<a name="l00288"></a>00288 <span class="keywordflow">if</span>( !SendPassword( password, seed ) ) {
<a name="l00289"></a>00289 <span class="keywordflow">throw</span> <a class="code" href="classBarry_1_1Error.html" title="The base class for any future derived exceptions.">Barry::Error</a>(<span class="stringliteral">"IpModem: Error sending password."</span>);
<a name="l00290"></a>00290 }
<a name="l00291"></a>00291 <span class="keywordflow">break</span>;
<a name="l00292"></a>00292 <span class="keywordflow">case</span> 0x04: <span class="comment">// command accepted</span>
<a name="l00293"></a>00293 <span class="keywordflow">break</span>;
<a name="l00294"></a>00294
<a name="l00295"></a>00295 <span class="keywordflow">default</span>: <span class="comment">// ???</span>
<a name="l00296"></a>00296 ddout(<span class="stringliteral">"IPModem: Unknown response.\n"</span>);
<a name="l00297"></a>00297 <span class="keywordflow">break</span>;
<a name="l00298"></a>00298 }
<a name="l00299"></a>00299 }
<a name="l00300"></a>00300
<a name="l00301"></a>00301 <span class="comment">// see if the modem will respond to commands</span>
<a name="l00302"></a>00302 <span class="keyword">const</span> <span class="keywordtype">char</span> modem_command[] = { <span class="stringliteral">"AT\r"</span> };
<a name="l00303"></a>00303 m_dev.BulkWrite(write_ep, modem_command, strlen(modem_command));
<a name="l00304"></a>00304 m_dev.BulkRead(read_ep, data);
<a name="l00305"></a>00305 ddout(<span class="stringliteral">"IPModem: Test command response.\n"</span> << data);
<a name="l00306"></a>00306 <span class="keywordflow">if</span>( data.GetSize() >= 1 ) {
<a name="l00307"></a>00307 <span class="keywordflow">switch</span>(data.GetData()[0])
<a name="l00308"></a>00308 {
<a name="l00309"></a>00309 <span class="keywordflow">case</span> 0x00: <span class="comment">// Null packet</span>
<a name="l00310"></a>00310 <span class="keywordflow">try</span> {
<a name="l00311"></a>00311 m_dev.BulkRead(read_ep, data, 5000);
<a name="l00312"></a>00312 ddout(<span class="stringliteral">"IPModem: AT Response Packet:\n"</span> << data);
<a name="l00313"></a>00313 }
<a name="l00314"></a>00314 <span class="keywordflow">catch</span>( <a class="code" href="classUsb_1_1Timeout.html">Usb::Timeout</a> &to ) {
<a name="l00315"></a>00315 <span class="comment">// do nothing on timeouts</span>
<a name="l00316"></a>00316 ddout(<span class="stringliteral">"IPModem: AT Response Timeout"</span>);
<a name="l00317"></a>00317 }
<a name="l00318"></a>00318 <span class="keywordflow">break</span>;
<a name="l00319"></a>00319
<a name="l00320"></a>00320 <span class="keywordflow">case</span> 0x02: <span class="comment">// password seed received</span>
<a name="l00321"></a>00321 <span class="keywordflow">if</span>( !password || strlen(password) == 0 ) {
<a name="l00322"></a>00322 <span class="keywordflow">throw</span> BadPassword(<span class="stringliteral">"This device requested a password."</span>,
<a name="l00323"></a>00323 data.GetSize() >= 9 ? data.GetData()[8] : 0, <span class="keyword">false</span>);
<a name="l00324"></a>00324 }
<a name="l00325"></a>00325 <span class="keywordflow">else</span> { <span class="comment">// added for the Storm 9000</span>
<a name="l00326"></a>00326 memcpy(&seed, data.GetData() + 4, <span class="keyword">sizeof</span>(seed));
<a name="l00327"></a>00327 <span class="keywordflow">if</span>( !SendPassword( password, seed ) ) {
<a name="l00328"></a>00328 <span class="keywordflow">throw</span> <a class="code" href="classBarry_1_1Error.html" title="The base class for any future derived exceptions.">Barry::Error</a>(<span class="stringliteral">"IpModem: Error sending password."</span>);
<a name="l00329"></a>00329 }
<a name="l00330"></a>00330 }
<a name="l00331"></a>00331 <span class="keywordflow">break</span>;
<a name="l00332"></a>00332 <span class="keywordflow">case</span> 0x04: <span class="comment">// command accepted</span>
<a name="l00333"></a>00333 <span class="keywordflow">break</span>;
<a name="l00334"></a>00334
<a name="l00335"></a>00335 <span class="keywordflow">case</span> 0x07: <span class="comment">// device is password protected?</span>
<a name="l00336"></a>00336 <span class="keywordflow">throw</span> BadPassword(<span class="stringliteral">"This device requires a password."</span>, 0, <span class="keyword">false</span>);
<a name="l00337"></a>00337
<a name="l00338"></a>00338 <span class="keywordflow">default</span>: <span class="comment">// ???</span>
<a name="l00339"></a>00339 ddout(<span class="stringliteral">"IPModem: Unknown AT command response.\n"</span>);
<a name="l00340"></a>00340 <span class="comment">// treat this unknown data as a serial response</span>
<a name="l00341"></a>00341 <span class="keywordflow">if</span>( m_callback ) {
<a name="l00342"></a>00342 (*m_callback)(m_callback_context,
<a name="l00343"></a>00343 data.GetData(),
<a name="l00344"></a>00344 data.GetSize());
<a name="l00345"></a>00345 }
<a name="l00346"></a>00346 <span class="keywordflow">break</span>;
<a name="l00347"></a>00347 }
<a name="l00348"></a>00348 }
<a name="l00349"></a>00349 ddout(<span class="stringliteral">"IPModem: Modem Ready.\n"</span>);
<a name="l00350"></a>00350
<a name="l00351"></a>00351 <span class="comment">// spawn read thread</span>
<a name="l00352"></a>00352 m_continue_reading = <span class="keyword">true</span>;
<a name="l00353"></a>00353 <span class="keywordtype">int</span> ret = pthread_create(&m_modem_read_thread, NULL, &IpModem::DataReadThread, <span class="keyword">this</span>);
<a name="l00354"></a>00354 <span class="keywordflow">if</span>( ret ) {
<a name="l00355"></a>00355 m_continue_reading = <span class="keyword">false</span>;
<a name="l00356"></a>00356 <span class="keywordflow">throw</span> <a class="code" href="classBarry_1_1ErrnoError.html" title="System error that provides an errno error code.">Barry::ErrnoError</a>(<span class="stringliteral">"IpModem: Error creating USB read thread."</span>, ret);
<a name="l00357"></a>00357 }
<a name="l00358"></a>00358 }
<a name="l00359"></a>00359
<a name="l00360"></a>00360 <span class="keywordtype">void</span> IpModem::Write(<span class="keyword">const</span> Data &data, <span class="keywordtype">int</span> timeout)
<a name="l00361"></a>00361 {
<a name="l00362"></a>00362 <span class="keywordflow">if</span>( data.GetSize() == 0 )
<a name="l00363"></a>00363 <span class="keywordflow">return</span>; <span class="comment">// nothing to do</span>
<a name="l00364"></a>00364
<a name="l00365"></a>00365 <span class="comment">// according to Rick Scott the m_filter is not needed with the ip modem</span>
<a name="l00366"></a>00366 <span class="comment">// but with the 8320 with Rogers, it doesn't seem to connect without it</span>
<a name="l00367"></a>00367 <span class="comment">// If this is a performance problem, perhaps make this a runtime</span>
<a name="l00368"></a>00368 <span class="comment">// option.</span>
<a name="l00369"></a>00369 m_dev.BulkWrite(m_con.GetProbeResult().m_epModem.write,
<a name="l00370"></a>00370 m_filter.Write(data), timeout);
<a name="l00371"></a>00371 }
<a name="l00372"></a>00372
<a name="l00373"></a>00373 <span class="keywordtype">void</span> IpModem::Close()
<a name="l00374"></a>00374 {
<a name="l00375"></a>00375 <span class="comment">// This is the terminate connection sequence</span>
<a name="l00376"></a>00376 <span class="comment">// that resets the modem so we can re-connect</span>
<a name="l00377"></a>00377 <span class="comment">// without unpluging the USB cable or reseting</span>
<a name="l00378"></a>00378 <span class="comment">// the whole device.</span>
<a name="l00379"></a>00379 <span class="comment">// This works on a BB 8703e a with password. other BB's??</span>
<a name="l00380"></a>00380 <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> end[28];
<a name="l00381"></a>00381 <span class="keywordtype">int</span> read_ep = m_con.GetProbeResult().m_epModem.read;
<a name="l00382"></a>00382 <span class="keywordtype">int</span> write_ep = m_con.GetProbeResult().m_epModem.write;
<a name="l00383"></a>00383 Data data;
<a name="l00384"></a>00384
<a name="l00385"></a>00385 <span class="comment">//0 0 0 0 b0 0 0 0 0 0 0 0 0 c2 1 0 + session_key + special_flag</span>
<a name="l00386"></a>00386 ddout(<span class="stringliteral">"IpModem: Closing connection."</span>);
<a name="l00387"></a>00387 memset(end, 0, <span class="keyword">sizeof</span>(end));
<a name="l00388"></a>00388 end[4] = 0xb0;
<a name="l00389"></a>00389 end[13] = 0xc2;
<a name="l00390"></a>00390 end[14] = 0x01;
<a name="l00391"></a>00391 memcpy(&end[16], m_session_key, <span class="keyword">sizeof</span>(m_session_key));
<a name="l00392"></a>00392 memcpy(&end[24], special_flag, <span class="keyword">sizeof</span>(special_flag));
<a name="l00393"></a>00393 m_dev.BulkWrite(write_ep, end, <span class="keyword">sizeof</span>(end));
<a name="l00394"></a>00394
<a name="l00395"></a>00395 <span class="comment">//0 0 0 0 20 0 0 0 3 0 0 0 0 c2 1 0 + session_key + special_flag</span>
<a name="l00396"></a>00396 memset(end, 0, <span class="keyword">sizeof</span>(end));
<a name="l00397"></a>00397 end[4] = 0x20;
<a name="l00398"></a>00398 end[8] = 0x03;
<a name="l00399"></a>00399 end[13] = 0xc2;
<a name="l00400"></a>00400 end[14] = 0x01;
<a name="l00401"></a>00401 memcpy(&end[16], m_session_key, <span class="keyword">sizeof</span>(m_session_key));
<a name="l00402"></a>00402 memcpy(&end[24], special_flag, <span class="keyword">sizeof</span>(special_flag));
<a name="l00403"></a>00403 m_dev.BulkWrite(write_ep, end, <span class="keyword">sizeof</span>(end));
<a name="l00404"></a>00404
<a name="l00405"></a>00405 <span class="comment">//0 0 0 0 30 0 0 0 0 0 0 0 0 c2 1 0 + session_key + special_flag</span>
<a name="l00406"></a>00406 <span class="comment">// The session_key is set to 0x0's when there is no password.</span>
<a name="l00407"></a>00407 memset(end, 0, <span class="keyword">sizeof</span>(end));
<a name="l00408"></a>00408 end[4] = 0x30;
<a name="l00409"></a>00409 end[13] = 0xc2;
<a name="l00410"></a>00410 end[14] = 0x01;
<a name="l00411"></a>00411 memcpy(&end[16], m_session_key, <span class="keyword">sizeof</span>(m_session_key));
<a name="l00412"></a>00412 memcpy(&end[24], special_flag, <span class="keyword">sizeof</span>(special_flag));
<a name="l00413"></a>00413 m_dev.BulkWrite(write_ep, end, <span class="keyword">sizeof</span>(end));
<a name="l00414"></a>00414 m_dev.BulkWrite(write_ep, stop, <span class="keyword">sizeof</span>(stop));
<a name="l00415"></a>00415 <span class="keywordflow">try</span> {
<a name="l00416"></a>00416 m_dev.BulkRead(read_ep, data, 5000);
<a name="l00417"></a>00417 ddout(<span class="stringliteral">"IPModem: Close read packet:\n"</span> << data);
<a name="l00418"></a>00418 }
<a name="l00419"></a>00419 <span class="keywordflow">catch</span>( <a class="code" href="classUsb_1_1Timeout.html">Usb::Timeout</a> &to ) {
<a name="l00420"></a>00420 <span class="comment">// do nothing on timeouts</span>
<a name="l00421"></a>00421 ddout(<span class="stringliteral">"IPModem: Close Read Timeout"</span>);
<a name="l00422"></a>00422 }
<a name="l00423"></a>00423 <span class="comment">// stop the read thread</span>
<a name="l00424"></a>00424 <span class="keywordflow">if</span>( m_continue_reading ) {
<a name="l00425"></a>00425 m_continue_reading = <span class="keyword">false</span>;
<a name="l00426"></a>00426 pthread_join(m_modem_read_thread, NULL);
<a name="l00427"></a>00427 }
<a name="l00428"></a>00428 ddout(<span class="stringliteral">"IPmodem: Closed!"</span>);
<a name="l00429"></a>00429
<a name="l00430"></a>00430 }
<a name="l00431"></a>00431
<a name="l00432"></a>00432 }} <span class="comment">// namespace Barry::Mode</span>
<a name="l00433"></a>00433
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