W5500-Ethernet-Interface Makers
WIZnet PPPoE application library
How to use??
1. Set MAC address, IP address, Subnet mask, gateway address.
2. Run ppp_start function.
End~
Diff: PPPoE.cpp
- Revision:
- 0:7a9cde4dbf0b
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/PPPoE.cpp Wed Oct 29 06:17:02 2014 +0000
@@ -0,0 +1,1658 @@
+#include <stdint.h>
+#include "PPPoE.h"
+
+
+// ID and Password for PAP from main.c
+extern uint8_t pppoe_id[];//={};
+extern uint8_t pppoe_id_len;
+extern uint8_t pppoe_ip[];//={};
+extern uint8_t pppoe_pdns[];//={};
+extern uint8_t pppoe_sdns[];//={};
+extern uint8_t pppoe_pw[];//={};
+extern uint8_t pppoe_pw_len;
+
+
+//IPCP Reject flag
+uint8_t ip_rjt;
+uint8_t pdns_rjt;
+uint8_t sdns_rjt;
+
+
+// PPPoE Frame structure for send
+PPPMSG PPPMSG_req; // PPPoE frame
+PROTOCOL PPPPROTO; // Tag and Protocol data
+
+// TxRx Buffers pointer from main
+uint8_t* buf;
+
+// Server MAC and Assigned Session ID and IP address from NAS using PPPoE
+uint8_t NAS_mac[6];
+uint16_t NAS_sessionid = 0;
+
+// kind of authentication protocol and algorithm; decided by LCP phase
+// Authentication protocol : PAP - 0xC023, CHAP - 0xC223
+// Algorithm : MD5 - 0x05, MS-CHAP - 0x80, MS-CHAP-V2 - 0x81
+uint16_t auth_protocol;
+uint8_t chap_algorithm;
+
+// For MD5 calculation
+MD5_CTX context;
+uint8_t digest[16];
+
+// Identifier for PPPoE Protocols (increase per message sending)
+uint8_t protocol_id = 0x01;
+
+
+
+uint16_t pppoe_state = PPPoE_DISCOVERY;
+// PPPoE stage control flags
+uint16_t pppoe_control_flag = 0;
+
+//PPPoE retry count and send retry count
+uint8_t pppoe_retry_send_count = 0;
+extern uint16_t pppoe_retry_count;
+uint8_t pppoe_recv_count = 0;
+
+
+// Tmp variable
+uint16_t tmp_protocol;
+uint8_t tmp_pcode;
+
+PPPOEClient::PPPOEClient()
+{
+ eth = WIZnet_Chip::getInstance();
+}
+
+
+void PPPOEClient::set_pppinfo(uint8_t * nas_mac, uint8_t * ppp_ip, uint16_t nas_sessionid)
+{
+
+#ifdef __DEF_PPP_DBG1__
+ uint8_t str[8];//debug var
+ uint16_t psid;
+
+ printf("set_pppinfo() Start...\r\n");
+#endif
+ /* Set PPPoE bit in MR(Common Mode Register) : enable PPPoE */
+ eth->setMR(eth->getMR() | MR_PPPOE);
+
+ // Write PPPoE server's MAC address, Session ID and IP address.
+ // must be setted these value.
+#ifdef __DEF_PPP_DBG1__
+ printf("Server's MAC : %.2x:%.2x:%.2x:%.2x:%.2x:%.2x\r\n", nas_mac[0], nas_mac[1], nas_mac[2], nas_mac[3], nas_mac[4], nas_mac[5]);
+ printf("PPPoE IP : %.3d.%.3d.%.3d.%.3d\r\n", ppp_ip[0], ppp_ip[1], ppp_ip[2], ppp_ip[3]);
+ printf("Session ID : 0x%.2x%.2x\r\n", (uint8_t)(nas_sessionid >> 8), (uint8_t)nas_sessionid);
+#endif
+
+ eth->setPHAR(nas_mac);
+ eth->setSIPR(ppp_ip);
+ eth->setPSID(nas_sessionid);
+
+#ifdef __DEF_PPP_DBG1__
+ eth->getPHAR(str);
+ printf( "Read PHAR register : %.2x:%.2x:%.2x:%.2x:%.2x:%.2x\r\n", str[0], str[1], str[2], str[3], str[4], str[5]);
+ eth->getSIPR(str);
+ printf( "Read SIP register : %.3d.%.3d.%.3d.%.3d\r\n", str[0], str[1], str[2], str[3]);
+ psid = eth->getPSID();
+ printf("Read PSID register : %x\r\n", psid);
+#endif
+
+ //open socket in pppoe mode
+ eth->setPTIMER(0);
+
+
+#ifdef __DEF_PPP_DBG1__
+ printf("set_pppinfo() End...\r\n");
+#endif
+#ifdef __DEF_PPP_DBG1__
+ printf("pppoe PDNS : %.3d.%.3d.%.3d.%.3d\r\n", pppoe_pdns[0], pppoe_pdns[1], pppoe_pdns[2], pppoe_pdns[3]);
+ printf("pppoe SDNS : %.3d.%.3d.%.3d.%.3d\r\n", pppoe_sdns[0], pppoe_sdns[1], pppoe_sdns[2], pppoe_sdns[3]);
+#endif
+
+}
+
+
+void PPPOEClient::ppp_send(void)
+{
+ uint8_t *ptr;
+ uint8_t sn = 0;
+ uint16_t tmp16 = 0;
+ uint16_t txbuf_len = 0;
+
+ txbuf_len = sizeof(PPPMSG_req);
+
+
+
+ if(pppoe_state == PPPoE_DISCOVERY)
+ ptr = (uint8_t *)&PPPPROTO.opt;
+ else
+ ptr = (uint8_t *)&PPPPROTO;
+
+
+ // Fill the Tx buffer
+ //memcpy(txbuf, (uint8_t *)&PPPMSG_req, txbuf_len);
+ memcpy(buf, (uint8_t *)&PPPMSG_req, txbuf_len);
+ //change MSB and LSB because of different endian.
+ tmp16 = 0;
+ tmp16 = (PPPMSG_req.len & 0xFF) << 8;
+ tmp16 |= ((PPPMSG_req.len >> 8) & 0xFF);
+
+ //memcpy(txbuf + txbuf_len, ptr, tmp16);
+ memcpy(buf + txbuf_len, ptr, tmp16);
+ txbuf_len += tmp16;
+
+#ifdef __DEF_PPP_DBG2__
+ printf("Send data : ");
+ for(i=0; i<txbuf_len; i++)
+ {
+ if((i % 16) == 0) printf("\r\n");
+ printf("%.2x ", buf[i]);
+ }
+ printf("\r\n\r\n");
+#endif
+ // Send MACRAW data
+ eth->send(sn, (char*)buf, txbuf_len);
+ //setSn_CR(sn, Sn_CR_SEND);
+ eth->setSn_CR(sn, Sn_CR_SEND);
+ while( eth->getSn_CR(sn) ) ;
+}
+
+
+void PPPOEClient::ppp_recv( uint16_t received_len )
+{
+
+ uint16_t i;
+ uint8_t sn = 0;
+ uint8_t head[2] ={0,};
+
+ uint16_t ethertype = 0;
+ uint8_t pppoecode = 0;
+ uint16_t taglen = 0;
+ uint16_t tagname;
+
+ uint8_t get_protocol_id = 0;
+ uint16_t t_idx = 0, acknak_idx = 0, rjt_idx = 0;
+ uint16_t ppp_tag_len = 0, getlen = 0, opt_len = 0;
+ uint8_t acknak_opt[OPTMSG_LEN];
+ uint8_t rjt_opt[OPTMSG_LEN];
+ uint8_t opt_code;
+ uint8_t ppp_code;
+
+ uint8_t str[OPTMSG_LEN];
+ uint16_t str_len = 0;
+ uint8_t tmp8 = 0;
+ uint8_t mac[6];
+
+ //reset servicename flag
+ pppoe_control_flag = pppoe_control_flag & ~FLAG_PADO_SERVICENAME;
+
+
+ //getSHAR(mac);
+ eth->getSHAR(mac);
+
+ // MACRAW Receive
+ //receive header(packet length) of macraw packet
+
+ eth->recv(sn, (char*) head, 2);
+
+ eth->setSn_CR(sn,Sn_CR_RECV);
+
+ while( eth->getSn_CR(sn) ) ;
+
+ received_len = 0;
+ received_len = head[0] << 8;
+ received_len = received_len | head[1];
+ received_len = received_len - 2;
+
+
+ eth->recv(sn, (char*) buf, received_len);
+
+ eth->setSn_CR(sn,Sn_CR_RECV);
+
+ while( eth->getSn_CR(sn) ) ;
+
+
+ // Check the MAC in received packet
+ tmp8 = buf[0] - mac[0] + buf[1] - mac[1] + buf[2] - mac[2] + buf[3] - mac[3] + buf[4] - mac[4] + buf[5] - mac[5];
+
+ if(tmp8==0)
+ {
+#ifdef __DEF_PPP_DBG2__
+ printf("Received packet :");
+ for(i = 0; i < received_len; i++)
+ {
+ if((i % 16) == 0) printf("\r\n");
+ printf("%.2x ", buf[i]);
+ }
+ printf("\r\n");
+#endif
+ ethertype = buf[12];
+ ethertype = (ethertype << 8) + buf[13];
+
+ pppoecode = buf[15];
+
+ taglen = buf[18];
+ taglen = (taglen << 8) + buf[19];
+ ppp_code = buf[22];
+
+ //Check the Ether-Type and Code in received packet
+ t_idx = 20;
+ switch (ethertype)
+ {
+ case PPPoE_DISCOVERY :
+ if (pppoecode == PPPoE_PADO)
+ {
+#ifdef __DEF_PPP_DBG1__
+ printf("PPPoE Discovery: PADO received\r\n\r\n");
+#endif
+ for(i = 0; i < 6; i++) NAS_mac[i] = buf[6+i];
+ // PPPoE Frame
+ while(taglen)
+ {
+ tagname = buf[t_idx];
+ tagname = (tagname << 8) + buf[t_idx+1];
+
+ ppp_tag_len = buf[t_idx+2];
+ ppp_tag_len = (ppp_tag_len << 8) + buf[t_idx+3];
+
+ // Check option field overflow
+ // (OPTMSG_LEN defined maximum option field length.)
+ if((acknak_idx + (ppp_tag_len+4)) > OPTMSG_LEN)
+ {
+#ifdef __DEF_PPP_DBG__
+ printf("PPPoE Protocol option field overflow occuerd!\r\n");
+#endif
+ break;
+ }
+ else
+ {
+ switch(tagname)
+ {
+ case PPPoED_SERVICE_NAME :
+ if ((pppoe_control_flag & FLAG_PADO_SERVICENAME) == 0)
+ {
+ memcpy(&acknak_opt[acknak_idx], &buf[t_idx], ppp_tag_len+4);
+ acknak_idx += (ppp_tag_len+4);
+ pppoe_control_flag = pppoe_control_flag | FLAG_PADO_SERVICENAME;
+ }
+ break;
+ case PPPoED_HOST_UNIQ :
+ case PPPoED_AC_COOKIE :
+ memcpy(&acknak_opt[acknak_idx], &buf[t_idx], ppp_tag_len+4);
+ acknak_idx += (ppp_tag_len+4);
+ break;
+ default :
+ //case PPPoED_AC_NAME :
+ break;
+ }
+ }
+ t_idx += (ppp_tag_len+4);
+ taglen -= (ppp_tag_len+4);
+ }
+
+ memcpy(&PPPPROTO.opt[0], &acknak_opt[0], acknak_idx);
+
+ for(i = 0; i < 6; i++)
+ {
+ PPPMSG_req.dst_mac[i] = NAS_mac[i]; // NAS MAC address
+ }
+ PPPMSG_req.frame_code = PPPoE_PADR;
+ //change MSB and LSB because of different endian.
+ PPPMSG_req.len = 0;
+ PPPMSG_req.len = (acknak_idx & 0xFF) << 8;
+ PPPMSG_req.len |= ((acknak_idx >> 8) & 0xFF);
+
+#ifdef __DEF_PPP_DBG1__
+ printf("PPPoE Discovery : PADR send\r\n");
+#endif
+ ppp_send();
+ pppoe_control_flag = pppoe_control_flag | FLAG_DISCOVERY_RCV_PADO;
+
+
+ }
+ else if(pppoecode == PPPoE_PADS)
+ {
+#ifdef __DEF_PPP_DBG1__
+ printf("PPPoE Discovery: PADS received\r\n\r\n");
+#endif
+ pppoe_control_flag = pppoe_control_flag | FLAG_DISCOVERY_RCV_PADS;
+
+ NAS_sessionid = buf[16];
+ NAS_sessionid = (NAS_sessionid << 8) + buf[17];
+ }
+#ifdef __DEF_PPP_DBG1__
+ else printf("Not necessary packet received\r\n");
+#endif
+ break;
+ case PPPoE_SESSION :
+
+ // Process LCP
+ if ((buf[20] == 0xc0) && (buf[21] == 0x21))
+ {
+ //change MSB and LSB because of different endian.
+ PPPPROTO.protocol = 0;
+ PPPPROTO.protocol = (PPPoE_LCP & 0xFF) << 8;
+ PPPPROTO.protocol |= ((PPPoE_LCP >> 8) & 0xFF);
+
+ switch (ppp_code)
+ {
+ // when lcp_cr_rcv flag set && lcp_cr_sent flag set, goto PAP or CHAP
+ case PPP_CONFIG_REQ : //Configuration Request receive, and then ack or reject send
+ // when ack sent, lcp_cr_rcv flag set
+#ifdef __DEF_PPP_DBG1__
+ printf("PPPoE Session LCP: Configure-Request received\r\n\r\n");
+#endif
+ get_protocol_id = buf[23];
+ getlen = buf[24];
+ getlen = (getlen<<8) + buf[25];
+
+ getlen -= 4;
+ t_idx = 26;
+ while (getlen)
+ {
+ opt_code = buf[t_idx];
+ opt_len = buf[t_idx+1];
+ // Check option field overflow
+ // (OPTMSG_LEN defined maximum option field length.)
+ if((acknak_idx + opt_len) > OPTMSG_LEN || (rjt_idx + opt_len) > OPTMSG_LEN)
+ {
+#ifdef __DEF_PPP_DBG__
+ printf("PPPoE Protocol option field overflow occuerd!\r\n");
+#endif
+ break;
+ }
+ else
+ {
+ switch (opt_code)
+ {
+ case LCP_AUTH : // Authentication-Protocol
+ auth_protocol = buf[t_idx+2];
+ auth_protocol = (auth_protocol << 8) + buf[t_idx+3];
+ chap_algorithm = buf[t_idx+4];
+ memcpy(&acknak_opt[acknak_idx], &buf[t_idx], opt_len);
+ acknak_idx += opt_len;
+ break;
+ case LCP_MRU : // MRU (Maximum-Receive-Unit)
+ memcpy(&acknak_opt[acknak_idx], &buf[t_idx], opt_len);
+ acknak_idx += opt_len;
+ break;
+ case LCP_MAGICNUM : // Magic-Number
+ // opt_code : 0x01, 0x03, 0x05 shared process part
+ memcpy(&acknak_opt[acknak_idx], &buf[t_idx], opt_len);
+ acknak_idx += opt_len;
+
+ break;
+ default :
+ memcpy(&rjt_opt[rjt_idx], &buf[t_idx], opt_len);
+ rjt_idx += opt_len;
+ break;
+ }
+ }
+ t_idx += opt_len;
+ getlen -= opt_len;
+ }
+
+
+
+ if (rjt_idx)
+ {
+ // reject send, then wait cr
+ PPPPROTO.pcode = PPP_CONFIG_REJ; // Reject
+ memcpy(&PPPPROTO.opt[0], &rjt_opt[0], rjt_idx);
+ PPPPROTO.id = get_protocol_id;
+
+ //change MSB and LSB because of different endian.
+ PPPPROTO.len = 0;
+ PPPPROTO.len = ((rjt_idx+4) & 0xFF) << 8;
+ PPPPROTO.len |= (((rjt_idx+4) >> 8) & 0xFF);
+
+ //change MSB and LSB because of different endian.
+ PPPMSG_req.len = 0;
+ PPPMSG_req.len = ((rjt_idx+6) & 0xFF) << 8;
+ PPPMSG_req.len |= (((rjt_idx+6) >> 8) & 0xFF);
+
+ ppp_send();
+ }
+ else
+ {
+ // ack send, lcp_cr_rcv flag set
+ //change MSB and LSB because of different endian.
+ PPPPROTO.protocol = 0;
+ PPPPROTO.protocol = (PPPoE_LCP & 0xFF) << 8;
+ PPPPROTO.protocol |= ((PPPoE_LCP >> 8) & 0xFF);
+
+ PPPPROTO.pcode = PPP_CONFIG_ACK; // ack
+ memcpy(&PPPPROTO.opt[0], &acknak_opt[0], acknak_idx);
+ PPPPROTO.id = get_protocol_id;
+ //change MSB and LSB because of different endian.
+ PPPPROTO.len = 0;
+ PPPPROTO.len = ((acknak_idx+4) & 0xFF) << 8;
+ PPPPROTO.len |= (((acknak_idx+4) >> 8) & 0xFF);
+
+ //change MSB and LSB because of different endian.
+ PPPMSG_req.len = 0;
+ PPPMSG_req.len = ((acknak_idx+6) & 0xFF) << 8;
+ PPPMSG_req.len |= (((acknak_idx+6) >> 8) & 0xFF);
+#ifdef __DEF_PPP_DBG1__
+ printf("LCP Configuration Ack send\r\n");
+#endif
+ ppp_send();//ack send
+ pppoe_control_flag = pppoe_control_flag | FLAG_LCP_CR_RCV;
+
+ }
+ break;
+
+
+ case PPP_CONFIG_ACK : //ack, then lcp_cr_sent flag set
+#ifdef __DEF_PPP_DBG1__
+ printf("PPPoE Session LCP: Configuration Ack received\r\n\r\n");
+#endif
+ pppoe_control_flag = pppoe_control_flag | FLAG_LCP_CR_SNT;
+ break;
+
+
+ case PPP_TERM_ACK :
+#ifdef __DEF_PPP_DBG1__
+ printf("Termination Ack received\r\n\r\n");
+#endif
+ pppoe_control_flag = pppoe_control_flag | FLAG_TERMINATION_ACK_RCV;
+
+ break;
+
+
+ case PPP_TERM_REQ:
+#ifdef __DEF_PPP_DBG1__
+ printf("Termination request received\r\n\r\n");
+#endif
+
+ //change MSB and LSB because of different endian.
+ PPPMSG_req.ether_type = 0;
+ PPPMSG_req.ether_type = (PPPoE_SESSION & 0xFF) << 8;
+ PPPMSG_req.ether_type |= ((PPPoE_SESSION >> 8) & 0xFF);// session
+
+ PPPMSG_req.frame_code = 0x00; // session data
+ //change MSB and LSB because of different endian.
+ PPPMSG_req.session_id = 0;
+ PPPMSG_req.session_id = (NAS_sessionid & 0xFF) << 8;
+ PPPMSG_req.session_id |= ((NAS_sessionid >> 8) & 0xFF);
+
+ //change MSB and LSB because of different endian.
+ PPPPROTO.protocol = 0;
+ PPPPROTO.protocol = (PPPoE_LCP & 0xFF) << 8;
+ PPPPROTO.protocol |= ((PPPoE_LCP >> 8) & 0xFF);
+
+ PPPPROTO.pcode = PPP_TERM_ACK; // Terminate-ack
+
+ PPPPROTO.opt[0] = 0x00; // Magic number
+ PPPPROTO.opt[1] = 0x01;
+ PPPPROTO.opt[2] = 0x02;
+ PPPPROTO.opt[3] = 0x03;
+
+ PPPPROTO.id = protocol_id++;
+ //change MSB and LSB because of different endian.
+ PPPPROTO.len = 0;
+ PPPPROTO.len = (8 & 0xFF) << 8;
+ PPPPROTO.len |= ((8 >> 8) & 0xFF);
+
+ //change MSB and LSB because of different endian.
+ PPPMSG_req.len = 0;
+ PPPMSG_req.len = (10 & 0xFF) << 8;
+ PPPMSG_req.len |= ((10 >> 8) & 0xFF);
+
+ pppoe_control_flag = pppoe_control_flag | FLAG_TERMINATION_REQ_RCV;
+
+#ifdef __DEF_PPP_DBG1__
+ printf("Termination ack send\r\n");
+#endif
+ ppp_send();
+
+ break;
+
+
+/*
+* Notice : This part is not implemented.
+* If necessary, please implement more for reply for request from NAS.
+*
+ case 0x04 : //reject
+ break;
+
+ case 0x09 : // Echo-Response
+ // Backup
+ tmp_protocol = PPPPROTO.protocol;
+ tmp_pcode = PPPPROTO.pcode;
+
+ PPPPROTO.protocol = PPPoE_LCP;
+ PPPPROTO.pcode = PPP_ECHO_REP;
+
+ PPPPROTO.id = buf[23];
+
+ PPPPROTO.len = buf[24];
+ PPPPROTO.len = (PPPPROTO.len << 8) + buf[25];
+
+ memcpy(&PPPPROTO.opt[0], &buf[26], PPPPROTO.len-4);
+ ppp_send();
+
+ // Recover
+ PPPPROTO.protocol = tmp_protocol;
+ PPPPROTO.pcode = tmp_pcode;
+ break;
+*/
+
+ default:
+#ifdef __DEF_PPP_DBG1__
+ printf("Not necessary packet received\r\n");
+#endif
+ break;
+ }
+ }
+ // Process PAP
+ else if ((buf[20] == 0xc0) && (buf[21] == 0x23))
+ {
+ if(ppp_code == PPP_CONFIG_ACK) // PPP_CONFIG_ACK = 0x02
+ {
+ pppoe_control_flag = pppoe_control_flag | FLAG_PAP_ACK_RCV;// receice ack
+
+#ifdef __DEF_PPP_DBG1__
+ printf("PPPoE Session PAP: Authentication ACK received\r\n\r\n");
+#endif
+ }
+ else if(ppp_code == PPP_TERM_ACK)
+ {
+#ifdef __DEF_PPP_DBG1__
+ printf("Termination Ack received\r\n\r\n");
+#endif
+ pppoe_control_flag = pppoe_control_flag | FLAG_TERMINATION_ACK_RCV;
+ }
+ }
+ // Process CHAP
+
+ else if ((buf[20] == 0xc2) && (buf[21] == 0x23))
+ {
+ switch(chap_algorithm)
+ {
+ case MD5 : // 0x05, MD5
+
+ get_protocol_id = buf[23];
+ // length of [code ~ packet end]
+ getlen = buf[24];
+ getlen = (getlen<<8) + buf[25];
+ // so, 'CHAP data' length is getlen - length of [code(1), ID(1), Length(2)].
+ getlen -= 4; //PPP CHAP total(getlen) - 4(header) = data length(value size(1) + value + name )
+ t_idx = 26;
+
+ switch(ppp_code)
+ {
+ case 0x01 :
+#ifdef __DEF_PPP_DBG1__
+ printf("PPPoE Session CHAP: CHAP Challenge received\r\n\r\n");
+#endif
+ // Challenge, parse the packet and return 'Response' to NAS
+ //-- MD5 calc input consist of ID(1), password(pwlen) and Challenge value(16).
+
+ //-- buf[t_idx] => CV(challenge value) size, buf[t_idx+1] => start byte of CV
+
+ memcpy(&str[str_len], &get_protocol_id, 1); // ID(value)
+ str_len += 1;
+ memcpy(&str[str_len], &pppoe_pw[0], pppoe_pw_len); // user password
+ str_len += pppoe_pw_len;
+ memcpy(&str[str_len], &buf[t_idx+1], buf[t_idx]); // CV(value)
+ str_len += buf[t_idx];
+
+ /*
+ memcpy(&str[str_len], &buf[t_idx+1], buf[t_idx]); // CV(value)
+ str_len += buf[t_idx];
+ memcpy(&str[str_len], &pppoe_pw, pppoe_pw_len); // user password
+ str_len += pppoe_pw_len;
+ memcpy(&str[str_len], &pppoe_id, pppoe_id_len); // user id
+ str_len += pppoe_id_len;
+ */
+
+ /*
+ MD5Init(&context);
+ MD5Update(&context, str, str_len);
+ MD5Final(digest, &context);
+ */
+
+
+ MD5Init(&context);
+ MD5Update(&context, &get_protocol_id, 1);
+ MD5Update(&context, pppoe_pw, pppoe_pw_len);
+ MD5Update(&context, (unsigned char *)(&buf[t_idx+1]), 16);
+ MD5Final(digest, &context);
+
+ // making response msg
+ acknak_opt[acknak_idx++] = CV_HV_LEN; // fixed value, 16
+ memcpy(&acknak_opt[acknak_idx], &digest, CV_HV_LEN);
+ acknak_idx += CV_HV_LEN;
+
+
+ memcpy(&acknak_opt[acknak_idx], &pppoe_id, pppoe_id_len); // Name: User ID
+ acknak_idx += pppoe_id_len;
+
+
+ //change MSB and LSB because of different endian.
+ PPPPROTO.protocol = 0;
+ PPPPROTO.protocol = (PPPoE_CHAP & 0xFF) << 8;
+ PPPPROTO.protocol |= ((PPPoE_CHAP >> 8) & 0xFF);
+
+ PPPPROTO.pcode = 0x02; // response
+ PPPPROTO.id = get_protocol_id;
+ //change MSB and LSB because of different endian.
+ PPPPROTO.len = 0;
+ PPPPROTO.len = ((acknak_idx + 4) & 0xFF) << 8;
+ PPPPROTO.len |= (((acknak_idx + 4) >> 8) & 0xFF);
+
+ //change MSB and LSB because of different endian.
+ PPPMSG_req.len = 0;
+ PPPMSG_req.len = ((acknak_idx + 6) & 0xFF) << 8;
+ PPPMSG_req.len |= (((acknak_idx + 6) >> 8) & 0xFF);
+
+
+ memcpy(&PPPPROTO.opt[0], &acknak_opt[0], acknak_idx);
+#ifdef __DEF_PPP_DBG1__
+ printf("CHAP response MSG send \r\n\r\n");
+#endif
+ ppp_send();
+ break;
+
+
+ case 0x03 : // PPP_SUCCESS
+#ifdef __DEF_PPP_DBG1__
+ printf("PPPoE Session CHAP: CHAP Succeed packet received\r\n\r\n");
+#endif
+ pppoe_control_flag = pppoe_control_flag | FLAG_CHAP_SUC_RCV;
+
+ break;
+
+
+ case 0x04 : // PPP_FAIL
+#ifdef __DEF_PPP_DBG1__
+ printf("PPPoE Session CHAP: CHAP failure packet received\r\n\r\n");
+#endif
+
+ break;
+
+ default :
+ break;
+ }
+ break;
+#ifdef __DEF_PPP_DBG1__
+ case MS_CHAP : // 0x80, MS-CHAP
+ case MS_CHAP_V2 : // 0x81, MS-CHAP-V2
+ printf("This CHAP Algorithm is not supported : ");
+ if(chap_algorithm == MS_CHAP) printf("MS-CHAP\r\n");
+ else printf("MS-CHAP-V2\r\n");
+ break;
+#endif
+ default :
+ break;
+ }
+ }
+ // Process IPCP
+ else if ((buf[20] == 0x80) && (buf[21] == 0x21))
+ {
+ switch(ppp_code)
+ {
+ case PPP_CONFIG_REQ : // cr, send ack
+ case PPP_CONFIG_NAK : // nak, save ip addr and send config requset
+
+#ifdef __DEF_PPP_DBG1__
+ if(ppp_code == 0x01) printf("PPPoE Session IPCP: Configure-Request received\r\n\r\n");
+ else if (ppp_code == 0x03) printf("PPPoE Session IPCP: Configure-Nak received\r\n\r\n");
+#endif
+ get_protocol_id = buf[23];
+ getlen = buf[24];
+ getlen = (getlen<<8) + buf[25];
+
+ getlen -= 4;
+ t_idx = 26;
+
+ while (getlen)
+ {
+ opt_code = buf[t_idx];
+ opt_len = buf[t_idx+1];
+
+ // Check option field overflow
+ // (OPTMSG_LEN defined maximum option field length.)
+ if((acknak_idx + opt_len) > OPTMSG_LEN || (rjt_idx + opt_len) > OPTMSG_LEN)
+ {
+#ifdef __DEF_PPP_DBG__
+ printf("PPPoE Protocol option field overflow occuerd!\r\n");
+#endif
+ break;
+ }
+ else
+ {
+ switch (opt_code)
+ {
+ //case 0x02 : // type : ip compression protocol
+ case 0x03 : // type : ip address
+ memcpy(&acknak_opt[acknak_idx], &buf[t_idx], opt_len);
+ memcpy(&pppoe_ip, &buf[t_idx+2], opt_len-2);
+
+ acknak_idx += opt_len;
+ break;
+ case 0x81 : //PDNS
+ memcpy(&acknak_opt[acknak_idx], &buf[t_idx], opt_len);
+ memcpy(&pppoe_pdns, &buf[t_idx+2], opt_len-2);
+
+ acknak_idx += opt_len;
+ break;
+ case 0x83 : //SDNS
+ memcpy(&acknak_opt[acknak_idx], &buf[t_idx], opt_len);
+ memcpy(&pppoe_sdns, &buf[t_idx+2], opt_len-2);
+
+ acknak_idx += opt_len;
+ break;
+ default : // reject
+ memcpy(&rjt_opt[rjt_idx], &buf[t_idx], opt_len);
+ rjt_idx += opt_len;
+ break;
+ }
+ }
+ t_idx += opt_len;
+ getlen -= opt_len;
+ }
+
+
+
+ if (rjt_idx)//if reject
+ {
+#ifdef __DEF_PPP_DBG1__
+ printf("reject send!\r\n");
+#endif
+ // reject send, then wait cr
+ //change MSB and LSB because of different endian.
+ PPPPROTO.protocol = 0;
+ PPPPROTO.protocol = (PPPoE_IPCP & 0xFF) << 8;
+ PPPPROTO.protocol |= ((PPPoE_IPCP >> 8) & 0xFF);
+
+ PPPPROTO.pcode = 0x04; // Reject
+
+ memcpy(&PPPPROTO.opt[0], &rjt_opt[0], rjt_idx);
+
+ PPPPROTO.id = get_protocol_id;
+ //change MSB and LSB because of different endian.
+ PPPPROTO.len = 0;
+ PPPPROTO.len = ((rjt_idx+4) & 0xFF) << 8;
+ PPPPROTO.len |= (((rjt_idx+4) >> 8) & 0xFF);
+ //change MSB and LSB because of different endian.
+ PPPMSG_req.len = 0;
+ PPPMSG_req.len = ((rjt_idx+6) & 0xFF) << 8;
+ PPPMSG_req.len |= (((rjt_idx+6) >> 8) & 0xFF);
+
+ ppp_send();
+ }
+ else // if not reject
+ {
+ // ack send, lcp_cr_rcv flag set
+ //change MSB and LSB because of different endian.
+ PPPPROTO.protocol = 0;
+ PPPPROTO.protocol = (PPPoE_IPCP & 0xFF) << 8;
+ PPPPROTO.protocol |= ((PPPoE_IPCP >> 8) & 0xFF);
+
+ if(ppp_code == PPP_CONFIG_REQ)
+ {
+ PPPPROTO.pcode = 0x02; // if configuration request MSG received, send ack
+#ifdef __DEF_PPP_DBG1__
+ printf("IPCP configuration ack send!\r\n");
+#endif
+ }
+ else
+ {
+ PPPPROTO.pcode = 0x01; // if nak received, send cr
+#ifdef __DEF_PPP_DBG1__
+ printf("IPCP Configuration Request send!\r\n");
+#endif
+ }
+
+ memcpy(&PPPPROTO.opt[0], &acknak_opt[0], acknak_idx);
+
+ PPPPROTO.id = get_protocol_id;
+ //change MSB and LSB because of different endian.
+ PPPPROTO.len = 0;
+ PPPPROTO.len = ((acknak_idx+4) & 0xFF) << 8;
+ PPPPROTO.len |= (((acknak_idx+4) >> 8) & 0xFF);
+ //change MSB and LSB because of different endian.
+ PPPMSG_req.len = 0;
+ PPPMSG_req.len = ((acknak_idx+6) & 0xFF) << 8;
+ PPPMSG_req.len |= (((acknak_idx+6) >> 8) & 0xFF);
+
+ ppp_send();
+ if(ppp_code == 0x01) pppoe_control_flag = pppoe_control_flag | FLAG_IPCP_CR_RCV;
+ else pppoe_control_flag = pppoe_control_flag | FLAG_IPCP_NAK_RCV;
+ }
+ break;
+
+
+ case PPP_CONFIG_REJ : // Reject receive.
+#ifdef __DEF_PPP_DBG1__
+ printf("IPCP reject message received!!\r\n");
+#endif
+
+ get_protocol_id = buf[23];
+ getlen = buf[24];
+ getlen = (getlen<<8) + buf[25];
+
+ getlen -= 4;
+ t_idx = 26;
+
+ ip_rjt = 0;
+ pdns_rjt =0;
+ sdns_rjt = 0;
+
+ while (getlen)
+ {
+ opt_code = buf[t_idx];
+ opt_len = buf[t_idx+1];
+
+ switch (opt_code)
+ {
+ //case 0x02 : // type : ip compression protocol
+ case 0x03 : // ip address
+ ip_rjt = 1;
+ break;
+ case 0x81 : // PDNS
+ pdns_rjt = 1;
+ break;
+ case 0x83 : // SDNS
+ sdns_rjt = 1;
+ break;
+ default :
+ break;
+ }
+ t_idx += opt_len;
+ getlen -= opt_len;
+ }
+
+ // Configuration send without reject protocol.
+
+ //change MSB and LSB because of different endian.
+ PPPPROTO.protocol = 0;
+ PPPPROTO.protocol = (PPPoE_IPCP & 0xFF) << 8;
+ PPPPROTO.protocol |= ((PPPoE_IPCP >> 8) & 0xFF);
+
+ PPPPROTO.pcode = PPP_CONFIG_REQ ;
+ t_idx = 0;
+ if( ip_rjt == 0 )
+ {
+ PPPPROTO.opt[t_idx++] = 0x03; // option code, IP address
+ PPPPROTO.opt[t_idx++] = 0x06; // option len
+ PPPPROTO.opt[t_idx++] = 0x00;
+ PPPPROTO.opt[t_idx++] = 0x00;
+ PPPPROTO.opt[t_idx++] = 0x00;
+ PPPPROTO.opt[t_idx++] = 0x00;
+ }
+
+ if( pdns_rjt == 0 )
+ {
+ PPPPROTO.opt[t_idx++] = 0x81; // option code, PDNS address
+ PPPPROTO.opt[t_idx++] = 0x06; // option len
+ PPPPROTO.opt[t_idx++] = 0x00;
+ PPPPROTO.opt[t_idx++] = 0x00;
+ PPPPROTO.opt[t_idx++] = 0x00;
+ PPPPROTO.opt[t_idx++] = 0x00;
+ }
+
+ if( sdns_rjt == 0 )
+ {
+ PPPPROTO.opt[t_idx++] = 0x83; // option code, SDNS address
+ PPPPROTO.opt[t_idx++] = 0x06; // option len
+ PPPPROTO.opt[t_idx++] = 0x00;
+ PPPPROTO.opt[t_idx++] = 0x00;
+ PPPPROTO.opt[t_idx++] = 0x00;
+ PPPPROTO.opt[t_idx++] = 0x00;
+ }
+
+ PPPPROTO.id = get_protocol_id;
+ //change MSB and LSB because of different endian.
+ PPPPROTO.len = 0;
+ PPPPROTO.len = ((t_idx+4) & 0xFF) << 8;
+ PPPPROTO.len |= (((t_idx+4) >> 8) & 0xFF);
+ //change MSB and LSB because of different endian.
+ PPPMSG_req.len = 0;
+ PPPMSG_req.len = ((t_idx+6) & 0xFF) << 8;
+ PPPMSG_req.len |= (((t_idx+6) >> 8) & 0xFF);
+
+ if( ip_rjt && pdns_rjt && sdns_rjt)
+ {
+#ifdef __DEF_PPP_DBG1__
+ printf("IPCP session : All IPCP options are rejected!!\r\n");
+#endif
+ do_lcp_terminate();
+ }
+ else
+ {
+#ifdef __DEF_PPP_DBG1__
+ printf("IPCP configuration request send without reject protocol\r\n");
+#endif
+ ppp_send();
+ }
+
+
+ break;
+ case PPP_CONFIG_ACK : // ack, then ipcp_cr_snt flag set
+#ifdef __DEF_PPP_DBG1__
+ printf("PPPoE Session IPCP: Configure-Ack received\r\n");
+#endif
+ if((pppoe_control_flag & FLAG_IPCP_NAK_RCV) == FLAG_IPCP_NAK_RCV) pppoe_control_flag = pppoe_control_flag | FLAG_IPCP_CR_SNT;
+ break;
+ }
+ }
+ break;
+ default:
+ break;
+ }
+ }
+}
+
+
+
+void PPPOEClient::do_discovery(void)
+{
+ uint16_t i = 0;
+ uint8_t mac[6] = {0,};
+ //getSHAR(mac);
+ eth->getSHAR(mac);
+
+ // PPPoE Frame
+ for(i = 0; i < 6; i++)
+ {
+ PPPMSG_req.dst_mac[i] = 0xFF; // Broadcast MAC address
+ PPPMSG_req.src_mac[i] = mac[i]; // Source MAC address
+ //-- Opt. Device MAC Address
+ PPPPROTO.opt[10+i] = mac[i];
+ }
+ //Reset control flag.
+ pppoe_control_flag = 0;
+
+ //change MSB and LSB because of different endian.
+ PPPMSG_req.ether_type = 0;
+ PPPMSG_req.ether_type = (PPPoE_DISCOVERY & 0xFF) << 8;//session data
+ PPPMSG_req.ether_type |= ((PPPoE_DISCOVERY >> 8) & 0xFF);//session data
+
+ PPPMSG_req.version_type = PPPoE_VER_TYPE; // Ver : 0001, Type : 0001
+ PPPMSG_req.frame_code = PPPoE_PADI; // PADI
+
+ PPPMSG_req.session_id = 0;
+
+
+ // Tag name : PPPoED_SERVICE_NAME
+ PPPPROTO.opt[0] = 0x01;
+ PPPPROTO.opt[1] = 0x01;
+ // Tag len
+ PPPPROTO.opt[2] = 0x00;
+ PPPPROTO.opt[3] = 0x00;
+
+ // Tag name : PPPoED_HOST_UNIQ
+ PPPPROTO.opt[4] = 0x01;
+ PPPPROTO.opt[5] = 0x03;
+ // Tag len (2bytes)
+ PPPPROTO.opt[6] = 0x00;
+ PPPPROTO.opt[7] = 0x08;
+ // Fill the Host-Uniq field using MAC address
+ PPPPROTO.opt[8] = 0x00;
+ PPPPROTO.opt[9] = 0x00;
+ //PPPPROTO.opt[10~15] refer to "//-- Opt. Device MAC Address"
+
+ //change MSB and LSB because of different endian.
+ PPPMSG_req.len = 0;
+ PPPMSG_req.len = (16 & 0xFF) << 8;
+ PPPMSG_req.len |= ((16 >> 8) & 0xFF);//size of opt[0-9]+ opt[10-15]
+
+#ifdef __DEF_PPP_DBG1__
+ printf("PPPoE Discovery : PADI send\r\n");
+#endif
+ ppp_send();
+
+}
+
+void PPPOEClient::do_lcp(void)
+{
+
+ //change MSB and LSB because of different endian.
+ PPPMSG_req.ether_type = 0;
+ PPPMSG_req.ether_type = (PPPoE_SESSION & 0xFF) << 8;
+ PPPMSG_req.ether_type |= ((PPPoE_SESSION >> 8) & 0xFF);//session data
+
+ PPPMSG_req.frame_code = 0x00; //session data
+ //change MSB and LSB because of different endian.
+ PPPMSG_req.session_id = 0;
+ PPPMSG_req.session_id = (NAS_sessionid & 0xFF) << 8;
+ PPPMSG_req.session_id |= ((NAS_sessionid >> 8) & 0xFF);//session data
+
+ //change MSB and LSB because of different endian.
+ PPPPROTO.protocol = 0;
+ PPPPROTO.protocol = (PPPoE_LCP & 0xFF) << 8;
+ PPPPROTO.protocol |= ((PPPoE_LCP >> 8) & 0xFF);
+
+
+ PPPPROTO.pcode = PPP_CONFIG_REQ; // CR
+
+ PPPPROTO.opt[0] = 0x05;
+ PPPPROTO.opt[1] = 0x06;
+ PPPPROTO.opt[2] = 0x00;
+ PPPPROTO.opt[3] = 0x01;
+ PPPPROTO.opt[4] = 0x02;
+ PPPPROTO.opt[5] = 0x03;
+
+ PPPPROTO.id = protocol_id++;
+ //change MSB and LSB because of different endian.
+ PPPPROTO.len = 0;
+ PPPPROTO.len = (10 & 0xFF) << 8;
+ PPPPROTO.len |= ((10 >> 8) & 0xFF);
+
+ //change MSB and LSB because of different endian.
+ PPPMSG_req.len = 0;
+ PPPMSG_req.len = (12 & 0xFF) << 8;
+ PPPMSG_req.len |= ((12 >> 8) & 0xFF);
+
+#ifdef __DEF_PPP_DBG1__
+ printf("LCP configuration Request send\r\n");
+#endif
+ ppp_send();
+
+}
+
+void PPPOEClient::do_lcp_echo(void)
+{
+
+ //change MSB and LSB because of different endian.
+ PPPMSG_req.ether_type = 0;
+ PPPMSG_req.ether_type = (PPPoE_SESSION & 0xFF) << 8;
+ PPPMSG_req.ether_type |= ((PPPoE_SESSION >> 8) & 0xFF);// session
+
+ PPPMSG_req.frame_code = 0x00; // session data
+ //change MSB and LSB because of different endian.
+ PPPMSG_req.session_id = 0;
+ PPPMSG_req.session_id = (NAS_sessionid & 0xFF) << 8;
+ PPPMSG_req.session_id |= ((NAS_sessionid >> 8) & 0xFF);// session id
+
+ //change MSB and LSB because of different endian.
+ PPPPROTO.protocol = 0;
+ PPPPROTO.protocol = (PPPoE_LCP & 0xFF) << 8;
+ PPPPROTO.protocol |= ((PPPoE_LCP >> 8) & 0xFF);
+
+ PPPPROTO.pcode = PPP_ECHO_REQ; // Echo-Requset
+
+ PPPPROTO.opt[0] = 0x00; // Magic number
+ PPPPROTO.opt[1] = 0x01;
+ PPPPROTO.opt[2] = 0x02;
+ PPPPROTO.opt[3] = 0x03;
+
+ PPPPROTO.id = protocol_id++;
+ //change MSB and LSB because of different endian.
+ PPPPROTO.len = 0;
+ PPPPROTO.len = (8 & 0xFF) << 8;
+ PPPPROTO.len |= ((8 >> 8) & 0xFF);
+ //change MSB and LSB because of different endian.
+ PPPMSG_req.len = 0;
+ PPPMSG_req.len = (10 & 0xFF) << 8;
+ PPPMSG_req.len |= ((10 >> 8) & 0xFF);
+#ifdef __DEF_PPP_DBG1__
+ printf("LCP echo request send\r\n");
+#endif
+ ppp_send();
+
+}
+
+//return -- 1 : success, 0 : failed
+uint8_t PPPOEClient::do_lcp_terminate(void)
+{
+ uint16_t received_len = 0;
+ uint8_t sock_num = 0;
+
+
+ pppoe_retry_count = 0;
+
+ //while( (pppoe_control_flag & FLAG_TERMINATION_ACK_RCV) == 0 )
+ while(1)
+ {
+ //change MSB and LSB because of different endian.
+ PPPMSG_req.ether_type = 0;
+ PPPMSG_req.ether_type = (PPPoE_SESSION & 0xFF) << 8;
+ PPPMSG_req.ether_type |= ((PPPoE_SESSION >> 8) & 0xFF);// session
+
+ PPPMSG_req.frame_code = 0x00; // session data
+ //change MSB and LSB because of different endian.
+ PPPMSG_req.session_id = 0;
+ PPPMSG_req.session_id = (NAS_sessionid & 0xFF) << 8;
+ PPPMSG_req.session_id |= ((NAS_sessionid >> 8) & 0xFF);
+
+ //change MSB and LSB because of different endian.
+ PPPPROTO.protocol = 0;
+ PPPPROTO.protocol = (PPPoE_LCP & 0xFF) << 8;
+ PPPPROTO.protocol |= ((PPPoE_LCP >> 8) & 0xFF);
+
+ PPPPROTO.pcode = PPP_TERM_REQ; // Terminate-Requset
+
+ PPPPROTO.opt[0] = 0x00; // Magic number
+ PPPPROTO.opt[1] = 0x01;
+ PPPPROTO.opt[2] = 0x02;
+ PPPPROTO.opt[3] = 0x03;
+
+ PPPPROTO.id = protocol_id++;
+ //change MSB and LSB because of different endian.
+ PPPPROTO.len = 0;
+ PPPPROTO.len = (8 & 0xFF) << 8;
+ PPPPROTO.len |= ((8 >> 8) & 0xFF);
+
+ //change MSB and LSB because of different endian.
+ PPPMSG_req.len = 0;
+ PPPMSG_req.len = (10 & 0xFF) << 8;
+ PPPMSG_req.len |= ((10 >> 8) & 0xFF);
+
+
+#ifdef __DEF_PPP_DBG1__
+ printf("Termination Request send\r\n");
+#endif
+ ppp_send();
+ pppoe_retry_count++;
+
+
+ if(pppoe_retry_count > PPP_MAX_RETRY_COUNT)
+ {
+ printf("Termination Failed\r\n");
+ return 0;//termination fail
+ }
+
+
+ pppoe_recv_count = 0;
+ while((pppoe_control_flag & FLAG_TERMINATION_ACK_RCV) == 0 && pppoe_recv_count < PPP_MAX_RETRYRECV_COUNT)
+ {
+ wait(0.4);
+ pppoe_recv_count ++;
+
+
+ received_len = eth->getSn_RX_RSR(sock_num);
+
+ if(received_len > 0)
+ {
+ ppp_recv(received_len);
+ if((pppoe_control_flag & FLAG_TERMINATION_ACK_RCV) == FLAG_TERMINATION_ACK_RCV) // Termination success
+ {
+ pppoe_state = PPPoE_FAILED;
+
+ // Flags reset
+ pppoe_control_flag = 0;
+ // Clear Session ID for new PPPoE Discovery process
+ NAS_sessionid = 0;
+
+ NAS_mac[0] = 0;
+ NAS_mac[1] = 0;
+ NAS_mac[2] = 0;
+ NAS_mac[3] = 0;
+ NAS_mac[4] = 0;
+ NAS_mac[5] = 0;
+
+ pppoe_ip[0] = 0;
+ pppoe_ip[1] = 0;
+ pppoe_ip[2] = 0;
+ pppoe_ip[3] = 0;
+
+ printf("Termination completed\r\n");
+ return 1;//termination success
+ }
+ }
+ }
+
+ }
+
+}
+
+
+void PPPOEClient::do_pap(void)
+{
+
+ uint16_t i=0, j=0;
+
+ //change MSB and LSB because of different endian.
+ PPPPROTO.protocol = 0;
+ PPPPROTO.protocol = (PPPoE_PAP & 0xFF) << 8;
+ PPPPROTO.protocol |= ((PPPoE_PAP >> 8) & 0xFF);
+
+ PPPPROTO.pcode = PPP_CONFIG_REQ; // cr
+ PPPPROTO.opt[i++] = pppoe_id_len;
+
+ for(j = 0; j < pppoe_id_len; j++)
+ {
+ PPPPROTO.opt[i++] = pppoe_id[j];
+ }
+
+ PPPPROTO.opt[i++] = pppoe_pw_len;
+ for(j = 0; j < pppoe_pw_len; j++)
+ {
+ PPPPROTO.opt[i++] = pppoe_pw[j];
+ }
+
+ PPPPROTO.id = protocol_id++;
+ //change MSB and LSB because of different endian.
+ PPPPROTO.len = 0;
+ PPPPROTO.len = ((i+4) & 0xFF) << 8;
+ PPPPROTO.len |= (((i+4) >> 8) & 0xFF);
+ //change MSB and LSB because of different endian.
+ PPPMSG_req.len = 0;
+ PPPMSG_req.len = (((i+4)+2) & 0xFF) << 8;
+ PPPMSG_req.len |= ((((i+4)+2) >> 8) & 0xFF);
+
+#ifdef __DEF_PPP_DBG1__
+ printf("PAP authenticate-Request send\r\n");
+#endif
+
+ ppp_send();
+
+}
+
+void PPPOEClient::do_ipcp(void)
+{
+
+ //change MSB and LSB because of different endian.
+ PPPPROTO.protocol = 0;
+ PPPPROTO.protocol = (PPPoE_IPCP & 0xFF) << 8;
+ PPPPROTO.protocol |= ((PPPoE_IPCP >> 8) & 0xFF);
+
+ PPPPROTO.pcode = PPP_CONFIG_REQ; // configuration-req
+
+ PPPPROTO.opt[0] = 0x03; // option code, IP address
+ PPPPROTO.opt[1] = 0x06; // option len
+ PPPPROTO.opt[2] = 0x00;
+ PPPPROTO.opt[3] = 0x00;
+ PPPPROTO.opt[4] = 0x00;
+ PPPPROTO.opt[5] = 0x00;
+ //Option PDNS
+ PPPPROTO.opt[6] = 0x81; //op code, PDNS
+ PPPPROTO.opt[7] = 0x06; //option len
+ PPPPROTO.opt[8] = 0x00;
+ PPPPROTO.opt[9] = 0x00;
+ PPPPROTO.opt[10] = 0x00;
+ PPPPROTO.opt[11] = 0x00;
+ //Option SDNS
+ PPPPROTO.opt[12] = 0x83; //op code, SDNS
+ PPPPROTO.opt[13] = 0x06; //option len
+ PPPPROTO.opt[14] = 0x00;
+ PPPPROTO.opt[15] = 0x00;
+ PPPPROTO.opt[16] = 0x00;
+ PPPPROTO.opt[17] = 0x00;
+
+
+ PPPPROTO.id = protocol_id++;
+
+ //change MSB and LSB because of different endian.
+ /*
+ PPPPROTO.len = 0;
+ PPPPROTO.len = (10 & 0xFF) << 8;
+ PPPPROTO.len |= ((10 >> 8) & 0xFF);
+
+ //change MSB and LSB because of different endian.
+ PPPMSG_req.len = 0;
+ PPPMSG_req.len = (12 & 0xFF) << 8;
+ PPPMSG_req.len |= ((12 >> 8) & 0xFF);
+ */
+ PPPPROTO.len = 0;
+ PPPPROTO.len = (22 & 0xFF) << 8;
+ PPPPROTO.len |= ((22 >> 8) & 0xFF);
+
+ //change MSB and LSB because of different endian.
+ PPPMSG_req.len = 0;
+ PPPMSG_req.len = (24 & 0xFF) << 8;
+ PPPMSG_req.len |= ((24 >> 8) & 0xFF);
+#ifdef __DEF_PPP_DBG1__
+ printf("IPCP Configuration request send\r\n");
+#endif
+
+ ppp_send();
+
+}
+
+
+
+// PPPoE start
+//ret = Success : 1, Fail : 0, continue : 2
+uint8_t PPPOEClient::ppp_start(uint8_t * pppoe_buf)
+{
+ uint8_t sock_num;
+ uint8_t mFlag;
+ uint16_t dummyPort;
+ uint8_t ret = 2;
+ uint16_t received_len = 0;
+
+ buf = pppoe_buf;
+ //-- Init. param
+ sock_num = 0;
+ dummyPort = 0;
+ mFlag = 0x80; //MAC filter enable in MACRAW
+
+
+ switch(eth->getSn_SR(sock_num))
+ {
+ case WIZnet_Chip::SOCK_CLOSED:
+ eth->close(sock_num); // Close the SOCKET
+ eth->Socket_macraw(sock_num, dummyPort, mFlag); // Open the SOCKET with MACRAW mode
+#ifdef __DEF_PPP_DBG1__
+ printf("No.%d socket is opened with MACRAW and flag is 0x%2x\r\n", sock_num, mFlag);
+#endif
+#ifdef __DEF_PPP_DBG__
+ printf("\r\n=======================================\r\n");
+ printf("PHASE 0. PPPoE setup\r\n");
+ printf("=======================================\r\n");
+#endif
+ break;
+
+ case SOCK_MACRAW:
+
+ if(pppoe_retry_send_count > PPP_MAX_RETRYSEND_COUNT) pppoe_state = PPPoE_FAILED;
+
+ switch(pppoe_state)
+ {
+ case PPPoE_DISCOVERY : // Discovery
+ // PPPoE Discoveryecv(
+ //if((pppoe_control_flag & FLAG_DISCOVERY_RCV_PADO) == 0)
+ if((pppoe_control_flag & FLAG_DISCOVERY_RCV_PADO) == 0 || (pppoe_control_flag & FLAG_DISCOVERY_RCV_PADS) == 0) //Not recv PADO or PADS
+ {
+#ifdef __DEF_PPP_DBG__
+ printf("\r\n=======================================\r\n");
+ printf("PHASE 1. PPPoE Discovery\r\n");
+ printf("=======================================\r\n");
+#endif
+#ifdef __DEF_PPP_DBG1__
+ printf("Retry send count : %d\r\n", pppoe_retry_send_count);
+#endif
+ do_discovery(); // Send PADI
+ pppoe_retry_send_count++;
+ }
+
+ pppoe_recv_count = 0;
+ while((pppoe_control_flag & FLAG_DISCOVERY_RCV_PADS) == 0 && pppoe_recv_count < (PPP_MAX_RETRYRECV_COUNT) * 2)
+ {
+ wait(0.2);
+ pppoe_recv_count ++;
+
+ received_len = eth->getSn_RX_RSR(sock_num);
+
+ if(received_len > 0)
+ {
+ ppp_recv(received_len);
+
+
+ if((pppoe_control_flag & FLAG_DISCOVERY_RCV_PADS) == FLAG_DISCOVERY_RCV_PADS)// Discovery success
+ {
+ pppoe_state = PPPoE_LCP;
+ pppoe_retry_send_count = 0;//reset
+ }
+ }
+ }
+
+ break;
+
+ case PPPoE_LCP : // LCP
+ if((pppoe_control_flag & FLAG_LCP_CR_RCV) == 0)
+ {
+#ifdef __DEF_PPP_DBG__
+ printf("\r\n=======================================\r\n");
+ printf("PHASE 2. PPPoE LCP\r\n");
+ printf("=======================================\r\n");
+#endif
+ do_lcp_echo();
+
+#ifdef __DEF_PPP_DBG1__
+ printf("Retry send count : %d\r\n", pppoe_retry_send_count);
+#endif
+ pppoe_retry_send_count++;
+ }
+
+ pppoe_recv_count = 0;
+ while((pppoe_control_flag & FLAG_LCP_CR_RCV) == 0 && pppoe_recv_count < PPP_MAX_RETRYRECV_COUNT)
+ {
+ wait(0.2);
+ pppoe_recv_count++;
+
+ received_len = eth->getSn_RX_RSR(sock_num);
+ if(received_len > 0)
+ {
+ ppp_recv(received_len);
+ if((pppoe_control_flag & FLAG_LCP_CR_RCV) == FLAG_LCP_CR_RCV) pppoe_retry_send_count = 0;//reset
+ }
+ }
+
+
+ if((pppoe_control_flag & FLAG_LCP_CR_RCV) == FLAG_LCP_CR_RCV)
+ {
+ do_lcp();
+
+#ifdef __DEF_PPP_DBG1__
+ printf("Retry send count : %d\r\n", pppoe_retry_send_count);
+#endif
+ pppoe_retry_send_count++;
+
+ pppoe_recv_count = 0;
+ while((pppoe_control_flag & FLAG_LCP_CR_SNT) == 0 && pppoe_recv_count < PPP_MAX_RETRYRECV_COUNT)
+ {
+ wait(0.2);
+ pppoe_recv_count++;
+
+ received_len = eth->getSn_RX_RSR(sock_num);
+ if(received_len > 0)
+ {
+ ppp_recv(received_len);
+ if((pppoe_control_flag & FLAG_LCP_CR_SNT) == FLAG_LCP_CR_SNT)
+ {
+ // PAP
+ if(auth_protocol == PPPoE_PAP)
+ {
+ pppoe_state = PPPoE_PAP;
+ pppoe_retry_send_count = 0;//reset
+ }
+ // CHAP
+ else if(auth_protocol == PPPoE_CHAP)
+ {
+ pppoe_state = PPPoE_CHAP;
+ pppoe_retry_send_count = 0;//reset
+ }
+ // unknown auth protocol
+ else
+ {
+#ifdef __DEF_PPP_DBG1__
+ printf("\r\nError : Unknown authentication protocol");
+#endif
+ pppoe_state = PPPoE_FAILED;
+ }
+
+ }
+ }
+ }
+ }
+ break;
+
+ case PPPoE_PAP : // PAP
+#ifdef __DEF_PPP_DBG__
+ printf("\r\n=======================================\r\n");
+ printf("PHASE 3. PPPoE PAP\r\n");
+ printf("=======================================\r\n");
+#endif
+
+
+ if((pppoe_control_flag & FLAG_PAP_ACK_RCV) == 0 )
+ {
+ do_pap();
+ pppoe_retry_send_count++;
+#ifdef __DEF_PPP_DBG1__
+ printf("Retry send count : %d\r\n", pppoe_retry_send_count );
+#endif
+ }
+
+ pppoe_recv_count = 0;
+ while((pppoe_control_flag & FLAG_PAP_ACK_RCV) == 0 && pppoe_recv_count < PPP_MAX_RETRYRECV_COUNT)
+ {
+ wait(0.4);
+ pppoe_recv_count++;
+
+ received_len = eth->getSn_RX_RSR(sock_num);
+ if(received_len > 0)
+ {
+ ppp_recv(received_len);
+
+ if((pppoe_control_flag & FLAG_PAP_ACK_RCV) == FLAG_PAP_ACK_RCV)// pap auth success
+ {
+ pppoe_state = PPPoE_IPCP;
+ pppoe_retry_send_count = 0;//reset
+ }
+ }
+ }
+ break;
+
+ case PPPoE_CHAP : // CHAP
+#ifdef __DEF_PPP_DBG__
+ printf("\r\n=======================================\r\n");
+ printf("PHASE 3. PPPoE CHAP\r\n");
+ printf("=======================================\r\n");
+#endif
+
+
+ pppoe_recv_count = 0;
+ while((pppoe_control_flag & FLAG_CHAP_SUC_RCV) == 0 && pppoe_recv_count < 50)
+ {
+ wait(0.4);
+ pppoe_recv_count++;
+
+ printf("test\r\n");
+
+ received_len = eth->getSn_RX_RSR(sock_num);
+ if(received_len > 0)
+ {
+ ppp_recv(received_len);
+
+ if((pppoe_control_flag & FLAG_CHAP_SUC_RCV) == FLAG_CHAP_SUC_RCV)
+ {
+ pppoe_state = PPPoE_IPCP;
+ }
+
+ if((pppoe_control_flag & FLAG_TERMINATION_REQ_RCV) == FLAG_TERMINATION_REQ_RCV)
+ {
+ pppoe_state = PPPoE_FAILED;
+
+ break;
+ }
+ }
+ }
+
+ if( pppoe_recv_count >= 50)
+ {
+ if(do_lcp_terminate() == 0) //if termination is failed.
+ return 0;
+ }
+
+ break;
+
+ case PPPoE_IPCP : // IPCP
+#ifdef __DEF_PPP_DBG__
+ printf("\r\n=======================================\r\n");
+ printf("PHASE 4. PPPoE IPCP\r\n");
+ printf("=======================================\r\n");
+#endif
+
+ pppoe_recv_count = 0;
+ while((pppoe_control_flag & FLAG_IPCP_CR_RCV) == 0 && pppoe_recv_count < PPP_MAX_RETRYRECV_COUNT)
+ {
+ wait(1);
+ pppoe_recv_count++;
+
+ received_len = eth->getSn_RX_RSR(sock_num);
+ if(received_len > 0)
+ {
+ ppp_recv(received_len);
+
+ if((pppoe_control_flag & FLAG_IPCP_CR_RCV) == FLAG_IPCP_CR_RCV) pppoe_retry_send_count = 0;//reset
+
+ }
+
+ }
+ // After received IPCP Configuration-Request and sent ACK,
+ // User device have to send IPCP Configuration-Request and receive ACK.
+ if((pppoe_control_flag & FLAG_IPCP_CR_RCV) == FLAG_IPCP_CR_RCV)
+ {
+ do_ipcp();
+ pppoe_retry_send_count++;
+
+ pppoe_recv_count = 0;
+ while((pppoe_control_flag & FLAG_IPCP_CR_SNT) == 0 && pppoe_recv_count < PPP_MAX_RETRYRECV_COUNT)
+ {
+ wait(1);
+ pppoe_recv_count++;
+
+ received_len = eth->getSn_RX_RSR(sock_num);
+ if(received_len > 0)
+ {
+ ppp_recv(received_len);
+
+ if((pppoe_control_flag & FLAG_IPCP_CR_SNT) == FLAG_IPCP_CR_SNT)
+ {
+ pppoe_retry_send_count = 0;//reset
+#ifdef __DEF_PPP_DBG__
+ printf("\r\n=======================================\r\n");
+ printf("PHASE 5. PPPoE Socket open\r\n");
+ printf("=======================================\r\n");
+#endif
+ set_pppinfo(NAS_mac, pppoe_ip, NAS_sessionid);
+ ret = PPP_SUCCESS;
+ }
+ else if( (pppoe_control_flag & FLAG_TERMINATION_ACK_RCV) == FLAG_TERMINATION_ACK_RCV)
+ {
+ return 0;
+ }
+ else if( (pppoe_control_flag & FLAG_TERMINATION_REQ_RCV) == FLAG_TERMINATION_REQ_RCV)
+ {
+ return 0;
+ }
+ }
+ }
+ }
+ break;
+
+ case PPPoE_FAILED :
+ pppoe_retry_count++;
+#ifdef __DEF_PPP_DBG__
+ printf("\r\nPPPoE FAILED !!!\r\n");
+#endif
+#ifdef __DEF_PPP_DBG1__
+ printf("Retry count : %d\r\n", pppoe_retry_count);
+#endif
+ // All flags reset
+ pppoe_control_flag = 0;
+
+ // Clear Session ID for new PPPoE Discovery process
+ //NAS_sessionid = 0;
+
+ pppoe_retry_send_count = 0;
+ pppoe_state = PPPoE_DISCOVERY;
+
+ break;
+
+
+ default :
+#ifdef __DEF_PPP_DBG__
+ printf("\r\nUndefined state!\r\n");
+#endif
+ pppoe_state = PPPoE_FAILED;
+ break;
+ }
+
+ // PPPoE packet send count over : connection terminate
+ if(pppoe_retry_send_count >= PPP_MAX_RETRYSEND_COUNT) pppoe_state = PPPoE_FAILED;
+ break;
+
+ default:
+ break;
+ }
+ return ret;
+}
+/*
+void PPPOEClient::delay_ms(uint32_t time)
+{
+ uint32_t i;
+
+ for(i=0; i<time; i++)
+ {
+ xSysCtlDelay((xSysCtlClockGet()/1000)); // wait 1ms
+ }
+}
+*/
\ No newline at end of file