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Library for Bert van Dam's book "ARM MICROCONTROLLERS" For all chapters with internet.

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NetServices/if/ppp/PPPNetIf.cpp@0:4edb816d21e1, 2015-10-16 (annotated)

Committer:
ICTFBI
Date:
Fri Oct 16 14:28:26 2015 +0000
Revision:
0:4edb816d21e1
Pre-update 16-10-15

Who changed what in which revision?

UserRevisionLine numberNew contents of line
ICTFBI 0:4edb816d21e1 1
ICTFBI 0:4edb816d21e1 2 /*
ICTFBI 0:4edb816d21e1 3 Copyright (c) 2010 Donatien Garnier (donatiengar [at] gmail [dot] com)
ICTFBI 0:4edb816d21e1 4
ICTFBI 0:4edb816d21e1 5 Permission is hereby granted, free of charge, to any person obtaining a copy
ICTFBI 0:4edb816d21e1 6 of this software and associated documentation files (the "Software"), to deal
ICTFBI 0:4edb816d21e1 7 in the Software without restriction, including without limitation the rights
ICTFBI 0:4edb816d21e1 8 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
ICTFBI 0:4edb816d21e1 9 copies of the Software, and to permit persons to whom the Software is
ICTFBI 0:4edb816d21e1 10 furnished to do so, subject to the following conditions:
ICTFBI 0:4edb816d21e1 11
ICTFBI 0:4edb816d21e1 12 The above copyright notice and this permission notice shall be included in
ICTFBI 0:4edb816d21e1 13 all copies or substantial portions of the Software.
ICTFBI 0:4edb816d21e1 14
ICTFBI 0:4edb816d21e1 15 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
ICTFBI 0:4edb816d21e1 16 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
ICTFBI 0:4edb816d21e1 17 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
ICTFBI 0:4edb816d21e1 18 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
ICTFBI 0:4edb816d21e1 19 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
ICTFBI 0:4edb816d21e1 20 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
ICTFBI 0:4edb816d21e1 21 THE SOFTWARE.
ICTFBI 0:4edb816d21e1 22 */
ICTFBI 0:4edb816d21e1 23
ICTFBI 0:4edb816d21e1 24 #include "PPPNetIf.h"
ICTFBI 0:4edb816d21e1 25 #include "mbed.h"
ICTFBI 0:4edb816d21e1 26 #include "ppp/ppp.h"
ICTFBI 0:4edb816d21e1 27 #include "lwip/init.h"
ICTFBI 0:4edb816d21e1 28 #include "lwip/sio.h"
ICTFBI 0:4edb816d21e1 29
ICTFBI 0:4edb816d21e1 30 #define __DEBUG
ICTFBI 0:4edb816d21e1 31 #include "dbg/dbg.h"
ICTFBI 0:4edb816d21e1 32
ICTFBI 0:4edb816d21e1 33 #include "netCfg.h"
ICTFBI 0:4edb816d21e1 34 #if NET_PPP
ICTFBI 0:4edb816d21e1 35
ICTFBI 0:4edb816d21e1 36 #define PPP_TIMEOUT 60000
ICTFBI 0:4edb816d21e1 37
ICTFBI 0:4edb816d21e1 38 #define BUF_SIZE 256
ICTFBI 0:4edb816d21e1 39
ICTFBI 0:4edb816d21e1 40 PPPNetIf::PPPNetIf(GPRSModem* pIf) : LwipNetIf(), m_pIf(pIf),/* m_open(false),*/ m_connected(false), m_status(PPP_DISCONNECTED), m_fd(0) //, m_id(0)
ICTFBI 0:4edb816d21e1 41 {
ICTFBI 0:4edb816d21e1 42 //FIXME: Check static refcount
ICTFBI 0:4edb816d21e1 43 m_buf = new uint8_t[BUF_SIZE];
ICTFBI 0:4edb816d21e1 44 }
ICTFBI 0:4edb816d21e1 45
ICTFBI 0:4edb816d21e1 46 PPPNetIf::~PPPNetIf()
ICTFBI 0:4edb816d21e1 47 {
ICTFBI 0:4edb816d21e1 48 delete[] m_buf;
ICTFBI 0:4edb816d21e1 49 }
ICTFBI 0:4edb816d21e1 50
ICTFBI 0:4edb816d21e1 51 #if 0
ICTFBI 0:4edb816d21e1 52 PPPErr PPPNetIf::open(Serial* pSerial)
ICTFBI 0:4edb816d21e1 53 {
ICTFBI 0:4edb816d21e1 54 GPRSErr err = m_pIf->open(pSerial);
ICTFBI 0:4edb816d21e1 55 if(err)
ICTFBI 0:4edb816d21e1 56 return PPP_MODEM;
ICTFBI 0:4edb816d21e1 57 m_open = true;
ICTFBI 0:4edb816d21e1 58 #if 0
ICTFBI 0:4edb816d21e1 59 m_id = sioMgr::registerSerialIf(this);
ICTFBI 0:4edb816d21e1 60 if(!m_id)
ICTFBI 0:4edb816d21e1 61 {
ICTFBI 0:4edb816d21e1 62 close();
ICTFBI 0:4edb816d21e1 63 return PPP_CLOSED;
ICTFBI 0:4edb816d21e1 64 }
ICTFBI 0:4edb816d21e1 65 #endif
ICTFBI 0:4edb816d21e1 66 return PPP_OK;
ICTFBI 0:4edb816d21e1 67 }
ICTFBI 0:4edb816d21e1 68 #endif
ICTFBI 0:4edb816d21e1 69
ICTFBI 0:4edb816d21e1 70
ICTFBI 0:4edb816d21e1 71 PPPErr PPPNetIf::GPRSConnect(const char* apn, const char* userId, const char* password) //Connect using GPRS
ICTFBI 0:4edb816d21e1 72 {
ICTFBI 0:4edb816d21e1 73 LwipNetIf::init();
ICTFBI 0:4edb816d21e1 74 pppInit();
ICTFBI 0:4edb816d21e1 75 //TODO: Tell ATIf that we get ownership of the serial port
ICTFBI 0:4edb816d21e1 76
ICTFBI 0:4edb816d21e1 77 GPRSErr gprsErr;
ICTFBI 0:4edb816d21e1 78 gprsErr = m_pIf->connect(apn);
ICTFBI 0:4edb816d21e1 79 if(gprsErr)
ICTFBI 0:4edb816d21e1 80 return PPP_NETWORK;
ICTFBI 0:4edb816d21e1 81
ICTFBI 0:4edb816d21e1 82 DBG("PPPNetIf: If Connected.\n");
ICTFBI 0:4edb816d21e1 83
ICTFBI 0:4edb816d21e1 84 if( userId == NULL )
ICTFBI 0:4edb816d21e1 85 pppSetAuth(PPPAUTHTYPE_NONE, NULL, NULL);
ICTFBI 0:4edb816d21e1 86 else
ICTFBI 0:4edb816d21e1 87 pppSetAuth(PPPAUTHTYPE_PAP, userId, password); //TODO: Allow CHAP as well
ICTFBI 0:4edb816d21e1 88
ICTFBI 0:4edb816d21e1 89 DBG("PPPNetIf: Set Auth.\n");
ICTFBI 0:4edb816d21e1 90
ICTFBI 0:4edb816d21e1 91 //wait(1.);
ICTFBI 0:4edb816d21e1 92
ICTFBI 0:4edb816d21e1 93 //m_pIf->flushBuffer(); //Flush buffer before passing serial port to PPP
ICTFBI 0:4edb816d21e1 94
ICTFBI 0:4edb816d21e1 95 m_status = PPP_CONNECTING;
ICTFBI 0:4edb816d21e1 96 DBG("m_pIf = %p\n", m_pIf);
ICTFBI 0:4edb816d21e1 97 int res = pppOverSerialOpen((void*)m_pIf, sPppCallback, (void*)this);
ICTFBI 0:4edb816d21e1 98 DBG("PPP connected\n");
ICTFBI 0:4edb816d21e1 99 if(res<0)
ICTFBI 0:4edb816d21e1 100 {
ICTFBI 0:4edb816d21e1 101 disconnect();
ICTFBI 0:4edb816d21e1 102 return PPP_PROTOCOL;
ICTFBI 0:4edb816d21e1 103 }
ICTFBI 0:4edb816d21e1 104
ICTFBI 0:4edb816d21e1 105 DBG("PPPNetIf: PPP Started with res = %d.\n", res);
ICTFBI 0:4edb816d21e1 106
ICTFBI 0:4edb816d21e1 107 m_fd = res;
ICTFBI 0:4edb816d21e1 108 m_connected = true;
ICTFBI 0:4edb816d21e1 109 Timer t;
ICTFBI 0:4edb816d21e1 110 t.start();
ICTFBI 0:4edb816d21e1 111 while( m_status == PPP_CONNECTING ) //Wait for callback
ICTFBI 0:4edb816d21e1 112 {
ICTFBI 0:4edb816d21e1 113 poll();
ICTFBI 0:4edb816d21e1 114 if(t.read_ms()>PPP_TIMEOUT)
ICTFBI 0:4edb816d21e1 115 {
ICTFBI 0:4edb816d21e1 116 DBG("PPPNetIf: Timeout.\n");
ICTFBI 0:4edb816d21e1 117 disconnect();
ICTFBI 0:4edb816d21e1 118 return PPP_PROTOCOL;
ICTFBI 0:4edb816d21e1 119 }
ICTFBI 0:4edb816d21e1 120 }
ICTFBI 0:4edb816d21e1 121
ICTFBI 0:4edb816d21e1 122 DBG("PPPNetIf: Callback returned.\n");
ICTFBI 0:4edb816d21e1 123
ICTFBI 0:4edb816d21e1 124 if( m_status == PPP_DISCONNECTED )
ICTFBI 0:4edb816d21e1 125 {
ICTFBI 0:4edb816d21e1 126 disconnect();
ICTFBI 0:4edb816d21e1 127 return PPP_PROTOCOL;
ICTFBI 0:4edb816d21e1 128 }
ICTFBI 0:4edb816d21e1 129
ICTFBI 0:4edb816d21e1 130 return PPP_OK;
ICTFBI 0:4edb816d21e1 131
ICTFBI 0:4edb816d21e1 132 }
ICTFBI 0:4edb816d21e1 133
ICTFBI 0:4edb816d21e1 134 PPPErr PPPNetIf::ATConnect(const char* number) //Connect using a "classic" voice modem or GSM
ICTFBI 0:4edb816d21e1 135 {
ICTFBI 0:4edb816d21e1 136 //TODO: IMPL
ICTFBI 0:4edb816d21e1 137 return PPP_MODEM;
ICTFBI 0:4edb816d21e1 138 }
ICTFBI 0:4edb816d21e1 139
ICTFBI 0:4edb816d21e1 140 PPPErr PPPNetIf::disconnect()
ICTFBI 0:4edb816d21e1 141 {
ICTFBI 0:4edb816d21e1 142 if(m_fd)
ICTFBI 0:4edb816d21e1 143 pppClose(m_fd); //0 if ok, else should gen a WARN
ICTFBI 0:4edb816d21e1 144 m_connected = false;
ICTFBI 0:4edb816d21e1 145
ICTFBI 0:4edb816d21e1 146 m_pIf->flushBuffer();
ICTFBI 0:4edb816d21e1 147 m_pIf->printf("+++\r\n");
ICTFBI 0:4edb816d21e1 148 wait(.5);
ICTFBI 0:4edb816d21e1 149 m_pIf->flushBuffer();
ICTFBI 0:4edb816d21e1 150
ICTFBI 0:4edb816d21e1 151 GPRSErr gprsErr;
ICTFBI 0:4edb816d21e1 152 gprsErr = m_pIf->disconnect();
ICTFBI 0:4edb816d21e1 153 if(gprsErr)
ICTFBI 0:4edb816d21e1 154 return PPP_NETWORK;
ICTFBI 0:4edb816d21e1 155
ICTFBI 0:4edb816d21e1 156 return PPP_OK;
ICTFBI 0:4edb816d21e1 157 }
ICTFBI 0:4edb816d21e1 158
ICTFBI 0:4edb816d21e1 159 #if 0
ICTFBI 0:4edb816d21e1 160 PPPErr PPPNetIf::close()
ICTFBI 0:4edb816d21e1 161 {
ICTFBI 0:4edb816d21e1 162 GPRSErr err = m_pIf->close();
ICTFBI 0:4edb816d21e1 163 if(err)
ICTFBI 0:4edb816d21e1 164 return PPP_MODEM;
ICTFBI 0:4edb816d21e1 165 m_open = false;
ICTFBI 0:4edb816d21e1 166 return PPP_OK;
ICTFBI 0:4edb816d21e1 167 }
ICTFBI 0:4edb816d21e1 168 #endif
ICTFBI 0:4edb816d21e1 169
ICTFBI 0:4edb816d21e1 170
ICTFBI 0:4edb816d21e1 171 #if 0
ICTFBI 0:4edb816d21e1 172 //We have to use :
ICTFBI 0:4edb816d21e1 173
ICTFBI 0:4edb816d21e1 174 /** Pass received raw characters to PPPoS to be decoded. This function is
ICTFBI 0:4edb816d21e1 175 * thread-safe and can be called from a dedicated RX-thread or from a main-loop.
ICTFBI 0:4edb816d21e1 176 *
ICTFBI 0:4edb816d21e1 177 * @param pd PPP descriptor index, returned by pppOpen()
ICTFBI 0:4edb816d21e1 178 * @param data received data
ICTFBI 0:4edb816d21e1 179 * @param len length of received data
ICTFBI 0:4edb816d21e1 180 */
ICTFBI 0:4edb816d21e1 181 void
ICTFBI 0:4edb816d21e1 182 pppos_input(int pd, u_char* data, int len)
ICTFBI 0:4edb816d21e1 183 {
ICTFBI 0:4edb816d21e1 184 pppInProc(&pppControl[pd].rx, data, len);
ICTFBI 0:4edb816d21e1 185 }
ICTFBI 0:4edb816d21e1 186 #endif
ICTFBI 0:4edb816d21e1 187
ICTFBI 0:4edb816d21e1 188 void PPPNetIf::poll()
ICTFBI 0:4edb816d21e1 189 {
ICTFBI 0:4edb816d21e1 190 if(!m_connected)
ICTFBI 0:4edb816d21e1 191 return;
ICTFBI 0:4edb816d21e1 192 LwipNetIf::poll();
ICTFBI 0:4edb816d21e1 193 //static u8_t buf[128];
ICTFBI 0:4edb816d21e1 194 int len;
ICTFBI 0:4edb816d21e1 195 do
ICTFBI 0:4edb816d21e1 196 {
ICTFBI 0:4edb816d21e1 197 len = sio_tryread((sio_fd_t) m_pIf, m_buf, BUF_SIZE);
ICTFBI 0:4edb816d21e1 198 if(len > 0)
ICTFBI 0:4edb816d21e1 199 pppos_input(m_fd, m_buf, len);
ICTFBI 0:4edb816d21e1 200 } while(len>0);
ICTFBI 0:4edb816d21e1 201 }
ICTFBI 0:4edb816d21e1 202
ICTFBI 0:4edb816d21e1 203 //Link Callback
ICTFBI 0:4edb816d21e1 204 void PPPNetIf::pppCallback(int errCode, void *arg)
ICTFBI 0:4edb816d21e1 205 {
ICTFBI 0:4edb816d21e1 206 switch ( errCode )
ICTFBI 0:4edb816d21e1 207 {
ICTFBI 0:4edb816d21e1 208 //No error
ICTFBI 0:4edb816d21e1 209 case PPPERR_NONE:
ICTFBI 0:4edb816d21e1 210 {
ICTFBI 0:4edb816d21e1 211 struct ppp_addrs* addrs = (struct ppp_addrs*) arg;
ICTFBI 0:4edb816d21e1 212 m_ip = IpAddr(&(addrs->our_ipaddr)); //Set IP
ICTFBI 0:4edb816d21e1 213 }
ICTFBI 0:4edb816d21e1 214 m_status = PPP_CONNECTED;
ICTFBI 0:4edb816d21e1 215 break;
ICTFBI 0:4edb816d21e1 216 default:
ICTFBI 0:4edb816d21e1 217 //Disconnected
ICTFBI 0:4edb816d21e1 218 DBG("PPPNetIf: Callback errCode = %d.\n", errCode);
ICTFBI 0:4edb816d21e1 219 m_status = PPP_DISCONNECTED;
ICTFBI 0:4edb816d21e1 220 break;
ICTFBI 0:4edb816d21e1 221 }
ICTFBI 0:4edb816d21e1 222 }
ICTFBI 0:4edb816d21e1 223
ICTFBI 0:4edb816d21e1 224 #endif