/*---------------------------------------------------------------------------*/
static
PT_THREAD(udp_server_thread(struct pt *pt))
{
PT_BEGIN(pt);
uint16_t payloadlen;
static uint8_t str[64];
while(1)
{
PT_WAIT_UNTIL(pt,check_flag(new_packet,udp_server_flag));
if((buf[IP_PROTO_P]==IP_PROTO_UDP_V) && (buf[UDP_DST_PORT_H_P]==(MYUDPPORT>>8)) && (buf[UDP_DST_PORT_L_P]==(MYUDPPORT&0xff)))
{
/* calculate the udp message length */
payloadlen=buf[UDP_LEN_L_P]-UDP_HEADER_LEN;
/* replace the newline with string terminator */
buf[UDP_DATA_P+payloadlen-1] = '\0';
/* add some explanatory header to it */
sprintf(str,"> udp got: %s\r\n",buf+UDP_DATA_P);
/* send the same message with little modification to the sender */
make_udp_reply_from_request(buf,str,strlen(str),MYUDPPORT);
}
clear_flag(new_packet,udp_server_flag);
}
PT_END(pt);
}
/*---------------------------------------------------------------------------*/
static
PT_THREAD(coap_server_thread(struct pt *pt))
{
PT_BEGIN(pt);
uint16_t xt;
uint16_t tmp;
while(1)
{
PT_WAIT_UNTIL(pt,check_flag(new_packet,coap_server_flag));
if((buf[IP_PROTO_P]==IP_PROTO_UDP_V) && (buf[UDP_DST_PORT_H_P]==(COAPPORT>>8)) && (buf[UDP_DST_PORT_L_P]==(COAPPORT&0xff)))
{
/* UDP message length calculation */
xt = ((buf[UDP_LEN_H_P]<<8)+buf[UDP_LEN_L_P])-8;
#if 1
if(coap_parse(&pkt,buf+UDP_DATA_P,xt) != 0)
{
dbg(PSTR("\r\n> Bad coap packet\r\n"));
}
else
{
coap_handle_req(&scratch_buf, &pkt, &rsppkt);
xt = sizeof(response);
coap_build(response, &xt, &rsppkt);
make_udp_reply_from_request(buf,response,xt,COAPPORT);
}
#endif
}
clear_flag(new_packet,coap_server_flag);
}
PT_END(pt);
}/*---------------------------------------------------------------------------*/
int simple_server(void)
{
unsigned int plen;
unsigned int dat_p;
unsigned char i=0;
unsigned char cmd_pos=0;
unsigned char cmd;
unsigned char payloadlen=0;
char str[30];
char cmdval;
// Del_1ms(100);
/*initialize enc28j60*/
enc28j60Init(mymac);
init_ip_arp_udp_tcp(mymac,myip,mywwwport);
//ָʾµÆ״̬:0x476 is PHLCON LEDA(ÂÌ)=links status, LEDB(ºì)=receive/transmit
enc28j60PhyWrite(PHLCON,0x7a4);
enc28j60clkout(2); // change clkout from 6.25MHz to 12.5MHz
// Del_1ms(20);
//init the ethernet/ip layer:
while(1)
{
// OSTimeDlyHMSM(0, 0, 0, 50);
// get the next new packet:
plen = enc28j60PacketReceive(BUFFER_SIZE, buf);
//USART_DMASendData(USART1,buf,plen);
/*plen will ne unequal to zero if there is a valid packet (without crc error) */
if(plen==0)
{
continue;
}
// arp is broadcast if unknown but a host may also
// verify the mac address by sending it to
// a unicast address.
if(eth_type_is_arp_and_my_ip(buf,plen))
{
make_arp_answer_from_request(buf);
//USART_DMASendText(USART1,"make_arp_answer_from_request\n");
continue;
}
// check if ip packets are for us:
if(eth_type_is_ip_and_my_ip(buf,plen)==0)
{
continue;
}
if(buf[IP_PROTO_P]==IP_PROTO_ICMP_V && buf[ICMP_TYPE_P]==ICMP_TYPE_ECHOREQUEST_V)
{
// a ping packet, let's send pong
make_echo_reply_from_request(buf, plen);
//USART_DMASendText(USART1,"make_echo_reply_from_request\n");
continue;
}
// tcp port www start, compare only the lower byte
if (buf[IP_PROTO_P]==IP_PROTO_TCP_V&&buf[TCP_DST_PORT_H_P]==0&&buf[TCP_DST_PORT_L_P]==mywwwport)
{
if (buf[TCP_FLAGS_P] & TCP_FLAGS_SYN_V)
{
make_tcp_synack_from_syn(buf);
// make_tcp_synack_from_syn does already send the syn,ack
continue;
}
if (buf[TCP_FLAGS_P] & TCP_FLAGS_ACK_V)
{
init_len_info(buf); // init some data structures
// we can possibly have no data, just ack:
dat_p=get_tcp_data_pointer();
if (dat_p==0)
{
if (buf[TCP_FLAGS_P] & TCP_FLAGS_FIN_V)
{
// finack, answer with ack
make_tcp_ack_from_any(buf);
}
// just an ack with no data, wait for next packet
continue;
}
if (strncmp("GET ",(char *)&(buf[dat_p]),4)!=0)
{
// head, post and other methods:
//
// for possible status codes see:
// http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html
plen=fill_tcp_data_p(buf,0,PSTR("HTTP/1.0 200 OK\r\nContent-Type: text/html\r\n\r\n<h1>200 OK</h1>"));
goto SENDTCP;
}
if (strncmp("/ ",(char *)&(buf[dat_p+4]),2)==0)
{
plen=fill_tcp_data_p(buf,0,PSTR("HTTP/1.0 200 OK\r\nContent-Type: text/html\r\n\r\n"));
plen=fill_tcp_data_p(buf,plen,PSTR("<p>Usage: "));
plen=fill_tcp_data(buf,plen,baseurl);
plen=fill_tcp_data_p(buf,plen,PSTR("password</p>"));
goto SENDTCP;
}
cmd=analyse_get_url((char *)&(buf[dat_p+5]));
// for possible status codes see:
// http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html
if (cmd==-1)
{
plen=fill_tcp_data_p(buf,0,PSTR("HTTP/1.0 401 Unauthorized\r\nContent-Type: text/html\r\n\r\n<h1>401 Unauthorized</h1>"));
goto SENDTCP;
}
if (cmd==1)
{
//PORTD|= (1<<PD7);// transistor on
//IOCLR |= (1<<26);
// LED1ON();
i=1;
}
if (cmd==0)
{
//PORTD &= ~(1<<PD7);// transistor off
//IOSET |= (1<<26);
// LED1OFF();
i=0;
}
// if (cmd==-2) or any other value
// just display the status:
plen=print_webpage(buf,(i));
SENDTCP:
make_tcp_ack_from_any(buf); // send ack for http get
make_tcp_ack_with_data(buf,plen); // send data
continue;
}
}
// tcp port www end
//
// udp start, we listen on udp port 1200=0x4B0
if (buf[IP_PROTO_P]==IP_PROTO_UDP_V&&buf[UDP_DST_PORT_H_P]==4&&buf[UDP_DST_PORT_L_P]==0xb0)
{
payloadlen=buf[UDP_LEN_L_P]-UDP_HEADER_LEN;
// you must sent a string starting with v
// e.g udpcom version 10.0.0.24
if (verify_password((char *)&(buf[UDP_DATA_P])))
{
// find the first comma which indicates
// the start of a command:
cmd_pos=0;
while(cmd_pos<payloadlen)
{
cmd_pos++;
if (buf[UDP_DATA_P+cmd_pos]==',')
{
cmd_pos++; // put on start of cmd
break;
}
}
// a command is one char and a value. At
// least 3 characters long. It has an '=' on
// position 2:
if (cmd_pos<2 || cmd_pos>payloadlen-3 || buf[UDP_DATA_P+cmd_pos+1]!='=')
{
strcpy(str,"e=no_cmd");
goto ANSWER;
}
// supported commands are
// t=1 t=0 t=?
if (buf[UDP_DATA_P+cmd_pos]=='t')
{
cmdval=buf[UDP_DATA_P+cmd_pos+2];
if(cmdval=='1')
{
//PORTD|= (1<<PD7);// transistor on
//IOCLR |= (1<<26);
//LED1ON();
strcpy(str,"t=1");
goto ANSWER;
}
else if(cmdval=='0')
{
//PORTD &= ~(1<<PD7);// transistor off
//IOSET |= (1<<26);
//LED1OFF();
strcpy(str,"t=0");
goto ANSWER;
}
else if(cmdval=='?')
{
/*
if (IOPIN & (1<<26))
{
strcpy(str,"t=1");
goto ANSWER;
}
*/
strcpy(str,"t=0");
goto ANSWER;
}
}
strcpy(str,"e=no_such_cmd");
goto ANSWER;
}
strcpy(str,"e=invalid_pw");
ANSWER:
make_udp_reply_from_request(buf,str,strlen(str),myudpport);
}
}
// return (0);
}
int main(void){
uint16_t plen;
uint8_t i=0;
uint8_t cmd_pos=0;
uint8_t payloadlen=0;
char str[30];
char cmdval;
// set the clock speed to 8MHz
// set the clock prescaler. First write CLKPCE to enable setting of clock the
// next four instructions.
CLKPR=(1<<CLKPCE);
CLKPR=0; // 8 MHZ
delay_ms(10);
/* enable PB0, reset as output */
DDRB|= (1<<DDB0);
/* enable PD2/INT0, as input */
DDRD&= ~(1<<DDD2);
/* set output to gnd, reset the ethernet chip */
PORTB &= ~(1<<PB0);
delay_ms(10);
/* set output to Vcc, reset inactive */
PORTB|= (1<<PB0);
delay_ms(200);
/*initialize enc28j60*/
enc28j60Init(mymac);
delay_ms(20);
// LED
/* enable PB1, LED as output */
DDRB|= (1<<DDB1);
/* set output to Vcc, LED off */
PORTB|= (1<<PB1);
// the transistor on PD7
DDRD|= (1<<DDD7);
PORTD &= ~(1<<PD7);// transistor off
/* Magjack leds configuration, see enc28j60 datasheet, page 11 */
// LEDB=yellow LEDA=green
//
// 0x476 is PHLCON LEDA=links status, LEDB=receive/transmit
// enc28j60PhyWrite(PHLCON,0b0000 0100 0111 01 10);
enc28j60PhyWrite(PHLCON,0x476);
delay_ms(20);
/* set output to GND, red LED on */
PORTB &= ~(1<<PB1);
i=1;
//init the ethernet/ip layer:
init_ip_arp_udp(mymac,myip);
while(1){
// get the next new packet:
plen = enc28j60PacketReceive(BUFFER_SIZE, buf);
/*plen will ne unequal to zero if there is a valid
* packet (without crc error) */
if(plen==0){
continue;
}
// led----------
if (i){
/* set output to Vcc, LED off */
PORTB|= (1<<PB1);
i=0;
}else{
/* set output to GND, LED on */
PORTB &= ~(1<<PB1);
i=1;
}
// arp is broadcast if unknown but a host may also
// verify the mac address by sending it to
// a unicast address.
if(eth_type_is_arp_and_my_ip(buf,plen)){
make_arp_answer_from_request(buf,plen);
continue;
}
// check if ip packets (icmp or udp) are for us:
if(eth_type_is_ip_and_my_ip(buf,plen)==0){
continue;
}
if(buf[IP_PROTO_P]==IP_PROTO_ICMP_V && buf[ICMP_TYPE_P]==ICMP_TYPE_ECHOREQUEST_V){
// a ping packet, let's send pong
make_echo_reply_from_request(buf,plen);
continue;
}
// we listen on port 1200=0x4B0
if (buf[IP_PROTO_P]==IP_PROTO_UDP_V&&buf[UDP_DST_PORT_H_P]==4&&buf[UDP_DST_PORT_L_P]==0xb0){
payloadlen=buf[UDP_LEN_L_P]-UDP_HEADER_LEN;
// you must sent a string starting with v
// e.g udpcom version 10.0.0.24
if (verify_password((char *)&(buf[UDP_DATA_P]))){
// find the first comma which indicates
// the start of a command:
cmd_pos=0;
while(cmd_pos<payloadlen){
cmd_pos++;
if (buf[UDP_DATA_P+cmd_pos]==','){
cmd_pos++; // put on start of cmd
break;
}
}
// a command is one char and a value. At
// least 3 characters long. It has an '=' on
// position 2:
if (cmd_pos<2 || cmd_pos>payloadlen-3 || buf[UDP_DATA_P+cmd_pos+1]!='='){
strcpy(str,"e=no_cmd");
goto ANSWER;
}
// supported commands are
// t=1 t=0 t=?
if (buf[UDP_DATA_P+cmd_pos]=='t'){
cmdval=buf[UDP_DATA_P+cmd_pos+2];
if(cmdval=='1'){
PORTD|= (1<<PD7);// transistor on
strcpy(str,"t=1");
goto ANSWER;
}else if(cmdval=='0'){
PORTD &= ~(1<<PD7);// transistor off
strcpy(str,"t=0");
goto ANSWER;
}else if(cmdval=='?'){
if (PORTD & (1<<PD7)){
strcpy(str,"t=1");
goto ANSWER;
}
strcpy(str,"t=0");
goto ANSWER;
}
}
strcpy(str,"e=no_such_cmd");
goto ANSWER;
}
strcpy(str,"e=invalid_pw");
ANSWER:
make_udp_reply_from_request(buf,str,strlen(str),myport);
}
}
return (0);
}
int main(void){
uint16_t plen;
uint16_t dat_p;
uint8_t i=0;
uint8_t payloadlen=0;
// set the clock speed to 8MHz
// set the clock prescaler. First write CLKPCE to enable setting of clock the
// next four instructions.
//CLKPR=(1<<CLKPCE);
//CLKPR=0; // 8 MHZ
_delay_loop_1(50); // 12ms
// LED
/* enable PB1, LED as output */
DDRB|= (1<<DDB1);
/* one blink for indicate of start programm */
cbi(PORTB, PORTB1); // on
_delay_ms(100);
sbi(PORTB,PORTB1); // off
_delay_ms(100);
cbi(PORTB,PORTB1); // on
/*initialize enc28j60*/
enc28j60Init(mymac);
enc28j60clkout(2); // change clkout from 6.25MHz to 12.5MHz
_delay_loop_1(50); // 12ms
/* Magjack leds configuration, see enc28j60 datasheet, page 11 */
// LEDB=yellow LEDA=green
//
// 0x476 is PHLCON LEDA=links status, LEDB=receive/transmit
// enc28j60PhyWrite(PHLCON,0b0000 0100 0111 01 10);
enc28j60PhyWrite(PHLCON,0x476);
_delay_loop_1(50); // 12ms
/* set output to GND, red LED on */
PORTB &= ~(1<<PORTB1);
i=1;
//init the ethernet/ip layer:
init_ip_arp_udp_tcp(mymac,myip,MYWWWPORT);
while(1){
// get the next new packet:
plen = enc28j60PacketReceive(BUFFER_SIZE, buf);
/*plen will ne unequal to zero if there is a valid
* packet (without crc error) */
if(plen==0){
continue;
}
// arp is broadcast if unknown but a host may also
// verify the mac address by sending it to
// a unicast address.
if(eth_type_is_arp_and_my_ip(buf,plen)){
make_arp_answer_from_request(buf);
continue;
}
// check if ip packets (icmp or udp) are for us:
if(eth_type_is_ip_and_my_ip(buf,plen)==0){
continue;
}
if (i){
/* set output to Vcc, LED off */
PORTB|= (1<<PORTB1);
i=0;
}else{
/* set output to GND, LED on */
PORTB &= ~(1<<PORTB1);
i=1;
}
if(buf[IP_PROTO_P]==IP_PROTO_ICMP_V && buf[ICMP_TYPE_P]==ICMP_TYPE_ECHOREQUEST_V){
// a ping packet, let's send pong
make_echo_reply_from_request(buf,plen);
continue;
}
// tcp port www start, compare only the lower byte
if (buf[IP_PROTO_P]==IP_PROTO_TCP_V&&buf[TCP_DST_PORT_H_P]==0&&buf[TCP_DST_PORT_L_P]==MYWWWPORT){
if (buf[TCP_FLAGS_P] & TCP_FLAGS_SYN_V){
make_tcp_synack_from_syn(buf);
// make_tcp_synack_from_syn does already send the syn,ack
continue;
}
if (buf[TCP_FLAGS_P] & TCP_FLAGS_ACK_V){
init_len_info(buf); // init some data structures
// we can possibly have no data, just ack:
dat_p=get_tcp_data_pointer();
if (dat_p==0){
if (buf[TCP_FLAGS_P] & TCP_FLAGS_FIN_V){
// finack, answer with ack
make_tcp_ack_from_any(buf);
}
// just an ack with no data, wait for next packet
continue;
}
if (strncmp("GET ",(char *)&(buf[dat_p]),4)!=0){
// head, post and other methods:
//
// for possible status codes see:
// http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html
plen=fill_tcp_data_p(buf,0,PSTR("HTTP/1.0 200 OK\r\nContent-Type: text/html\r\n\r\n<h1>200 OK</h1>"));
}else{
// the "get" method
plen=fill_tcp_data_p(buf,0,PSTR("HTTP/1.0 200 OK\r\nContent-Type: text/html\r\n\r\n<p>OK, it works</p>"));
}
make_tcp_ack_from_any(buf); // send ack for http get
make_tcp_ack_with_data(buf,plen); // send data
continue;
}
}
// udp interface:
if (buf[IP_PROTO_P]==IP_PROTO_UDP_V){
payloadlen=buf[UDP_LEN_L_P]-UDP_HEADER_LEN;
// the received command has to start with t and be 4 char long
// e.g "test\0"
if (buf[UDP_DATA_P]=='t' && payloadlen==5){
make_udp_reply_from_request(buf,"hello",6,MYUDPPORT);
}
}
}
return (0);
}
int main(void){
uint16_t plen;
uint8_t i=0;
uint8_t payloadlen=0;
// set the clock speed to 8MHz
// set the clock prescaler. First write CLKPCE to enable setting of clock the
// next four instructions.
CLKPR=(1<<CLKPCE);
CLKPR=0; // 8 MHZ
/* enable PB0, reset as output */
DDRB|= (1<<DDB0);
/* set output to gnd, reset the ethernet chip */
PORTB &= ~(1<<PB0);
delay_ms(20);
/* set output to Vcc, reset inactive */
PORTB|= (1<<PB0);
delay_ms(100);
// LED
/* enable PB1, LED as output */
DDRB|= (1<<DDB1);
/* set output to Vcc, LED off */
PORTB|= (1<<PB1);
/*initialize enc28j60*/
enc28j60Init(mymac);
delay_ms(20);
/* Magjack leds configuration, see enc28j60 datasheet, page 11 */
// LEDB=yellow LEDA=green
//
// 0x476 is PHLCON LEDA=links status, LEDB=receive/transmit
// enc28j60PhyWrite(PHLCON,0b0000 0100 0111 01 10);
enc28j60PhyWrite(PHLCON,0x476);
delay_ms(20);
/* set output to GND, red LED on */
PORTB &= ~(1<<PB1);
i=1;
//init the ethernet/ip layer:
init_ip_arp_udp(mymac,myip);
while(1){
// get the next new packet:
plen = enc28j60PacketReceive(BUFFER_SIZE, buf);
/*plen will ne unequal to zero if there is a valid
* packet (without crc error) */
if(plen==0){
continue;
}
// arp is broadcast if unknown but a host may also
// verify the mac address by sending it to
// a unicast address.
if(eth_type_is_arp_and_my_ip(buf,plen)){
make_arp_answer_from_request(buf,plen);
continue;
}
// check if ip packets (icmp or udp) are for us:
if(eth_type_is_ip_and_my_ip(buf,plen)==0){
continue;
}
if (i){
/* set output to Vcc, LED off */
PORTB|= (1<<PB1);
i=0;
}else{
/* set output to GND, LED on */
PORTB &= ~(1<<PB1);
i=1;
}
if(buf[IP_PROTO_P]==IP_PROTO_ICMP_V && buf[ICMP_TYPE_P]==ICMP_TYPE_ECHOREQUEST_V){
// a ping packet, let's send pong
make_echo_reply_from_request(buf,plen);
continue;
}
if (buf[IP_PROTO_P]==IP_PROTO_UDP_V){
payloadlen=buf[UDP_LEN_L_P]-UDP_HEADER_LEN;
if (buf[UDP_DATA_P]=='t' && payloadlen==5){
make_udp_reply_from_request(buf,"hello",6,myport);
}
}
}
return (0);
}
void ethernet_process(void)
{
uint16_t plen;
uint16_t dat_p;
uint8_t cmd_pos=0;
int8_t cmd;
uint8_t payloadlen=0;
char str[30];
char cmdval;
// get the next new packet:
plen = enc28j60PacketReceive(BUFFER_SIZE, buf);
buf[BUFFER_SIZE]='\0';
dat_p=packetloop_arp_icmp_tcp(buf,plen);
#if 0
// tcp port 80 begin
if (strncmp("GET ",(char *)&(buf[dat_p]),4)!=0)
{
// head, post and other methods:
dat_p=http200ok();
dat_p=ES_fill_tcp_data(buf,dat_p,"<h1>200 OK</h1>");
goto SENDTCP;
}
#endif
/*plen will ne unequal to zero if there is a valid
* packet (without crc error) */
if(plen==0)
{
//continue;
}
// arp is broadcast if unknown but a host may also
// verify the mac address by sending it to
// a unicast address.
if(eth_type_is_arp_and_my_ip(buf,plen))
{
make_arp_answer_from_request(buf);
//continue;
}
// check if ip packets are for us:
if(eth_type_is_ip_and_my_ip(buf,plen)==0)
{
//continue;
}
#ifdef _DEBUG_
// led----------
if (i){
/* set output to Vcc, LED off */
PORTB|= (1<<PORTB1);
i=0;
}else{
/* set output to GND, LED on */
PORTB &= ~(1<<PORTB1);
i=1;
}
#endif
if(buf[IP_PROTO_P]==IP_PROTO_ICMP_V && buf[ICMP_TYPE_P]==ICMP_TYPE_ECHOREQUEST_V)
{
// a ping packet, let's send pong
make_echo_reply_from_request(buf,plen);
//continue;
}
// tcp port www start, compare only the lower byte
if (buf[IP_PROTO_P]==IP_PROTO_TCP_V&&buf[TCP_DST_PORT_H_P]==0&&buf[TCP_DST_PORT_L_P]==MYWWWPORT)
{
if (buf[TCP_FLAGS_P] & TCP_FLAGS_SYN_V)
{
make_tcp_synack_from_syn(buf);
// make_tcp_synack_from_syn does already send the syn,ack
//continue;
}
if (buf[TCP_FLAGS_P] & TCP_FLAGS_ACK_V)
{
init_len_info(buf); // init some data structures
// we can possibly have no data, just ack:
dat_p=get_tcp_data_pointer();
if (dat_p==0)
{
if (buf[TCP_FLAGS_P] & TCP_FLAGS_FIN_V)
{
// finack, answer with ack
make_tcp_ack_from_any(buf,1,0);
}
// just an ack with no data, wait for next packet
//continue;
}
if (strncmp("GET ",(char *)&(buf[dat_p]),4)!=0)
{
// head, post and other methods:
//
// for possible status codes see:
// http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html
plen=fill_tcp_data_p(buf,0,PSTR("HTTP/1.0 200 OK\r\nContent-Type: text/html\r\n\r\n<h1>200 OK</h1>"));
goto SENDTCP;
}
if (strncmp("/ ",(char *)&(buf[dat_p+4]),2)==0)
{
plen=fill_tcp_data_p(buf,0,PSTR("HTTP/1.0 200 OK\r\nContent-Type: text/html\r\n\r\n"));
plen=fill_tcp_data_p(buf,plen,PSTR("<p>Usage: http://host_or_ip/password</p>\n"));
goto SENDTCP;
}
cmd=analyse_get_url((char *)&(buf[dat_p+5]));
// for possible status codes see:
// http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html
if (cmd==-1)
{
plen=fill_tcp_data_p(buf,0,PSTR("HTTP/1.0 401 Unauthorized\r\nContent-Type: text/html\r\n\r\n<h1>401 Unauthorized</h1>"));
goto SENDTCP;
}
#ifdef _DEBUG_
if (cmd==1)
{
PORTD|= (1<<PORTD7);// transistor on
}
if (cmd==0)
{
PORTD &= ~(1<<PORTD7);// transistor off
}
#endif
if (cmd==-3)
{
// redirect to add a trailing slash
plen=moved_perm(buf);
goto SENDTCP;
}
#ifndef _DEBUG_
// if (cmd==-2) or any other value
// just display the status:
//plen=print_webpage(buf,(PORTD & (1<<PORTD7)));
plen=print_webpage(buf);
//
#endif
SENDTCP:
plen=print_webpage(buf);
make_tcp_ack_from_any(buf,1,0); // send ack for http get
make_tcp_ack_with_data(buf,plen); // send data
//continue;
}
}
// tcp port www end
//
// udp start, we listen on udp port 1200=0x4B0
if (buf[IP_PROTO_P]==IP_PROTO_UDP_V&&buf[UDP_DST_PORT_H_P]==4&&buf[UDP_DST_PORT_L_P]==0xb0)
{
payloadlen=buf[UDP_LEN_L_P]-UDP_HEADER_LEN;
// you must sent a string starting with v
// e.g udpcom version 10.0.0.24
if (verify_password((char *)&(buf[UDP_DATA_P])))
{
// find the first comma which indicates
// the start of a command:
cmd_pos=0;
while(cmd_pos<payloadlen)
{
cmd_pos++;
if (buf[UDP_DATA_P+cmd_pos]==',')
{
cmd_pos++; // put on start of cmd
break;
}
}
// a command is one char and a value. At
// least 3 characters long. It has an '=' on
// position 2:
if (cmd_pos<2 || cmd_pos>payloadlen-3 || buf[UDP_DATA_P+cmd_pos+1]!='=')
{
strcpy(str,"e=no_cmd");
goto ANSWER;
}
// supported commands are
// t=1 t=0 t=?
if (buf[UDP_DATA_P+cmd_pos]=='t')
{
cmdval=buf[UDP_DATA_P+cmd_pos+2];
if(cmdval=='1')
{
//PORTD|= (1<<PORTD7);// transistor on
strcpy(str,"t=1");
goto ANSWER;
}
else if(cmdval=='0')
{
//PORTD &= ~(1<<PORTD7);// transistor off
strcpy(str,"t=0");
goto ANSWER;
}
else if(cmdval=='?')
{
// if (PORTD & (1<<PORTD7)){
// strcpy(str,"t=1");
// goto ANSWER;
// }
strcpy(str,"t=0");
goto ANSWER;
}
}
strcpy(str,"e=no_such_cmd");
goto ANSWER;
}
strcpy(str,"e=invalid_pw");
ANSWER:
make_udp_reply_from_request(buf,str,strlen(str),MYUDPPORT);
}
}
int main(void){
uint16_t plen;
uint16_t dat_p;
uint8_t i=0;
uint8_t payloadlen=0;
char str[20];
// set the clock speed to 8MHz
// set the clock prescaler. First write CLKPCE to enable setting of clock the
// next four instructions.
CLKPR=(1<<CLKPCE);
CLKPR=0; // 8 MHZ
_delay_loop_1(50); // 12ms
/*initialize enc28j60*/
enc28j60Init(mymac);
enc28j60clkout(2); // change clkout from 6.25MHz to 12.5MHz
_delay_loop_1(50); // 12ms
// LED
/* enable PB1, LED as output */
DDRB|= (1<<DDB1);
/* set output to Vcc, LED off */
PORTB|= (1<<PORTB1);
/* Magjack leds configuration, see enc28j60 datasheet, page 11 */
// LEDB=yellow LEDA=green
//
// 0x476 is PHLCON LEDA=links status, LEDB=receive/transmit
// enc28j60PhyWrite(PHLCON,0b0000 0100 0111 01 10);
enc28j60PhyWrite(PHLCON,0x476);
_delay_loop_1(50); // 12ms
/* set output to GND, red LED on */
PORTB &= ~(1<<PORTB1);
i=1;
//init the ethernet/ip layer:
init_ip_arp_udp_tcp(mymac,myip,MYWWWPORT);
while(1){
// get the next new packet:
plen = enc28j60PacketReceive(BUFFER_SIZE, buf);
/*plen will ne unequal to zero if there is a valid
* packet (without crc error) */
if(plen==0){
continue;
}
// arp is broadcast if unknown but a host may also
// verify the mac address by sending it to
// a unicast address.
if(eth_type_is_arp_and_my_ip(buf,plen)){
make_arp_answer_from_request(buf);
continue;
}
// check if ip packets (icmp or udp) are for us:
if(eth_type_is_ip_and_my_ip(buf,plen)==0){
continue;
}
if (i){
/* set output to Vcc, LED off */
PORTB|= (1<<PORTB1);
i=0;
}else{
/* set output to GND, LED on */
PORTB &= ~(1<<PORTB1);
i=1;
}
if(buf[IP_PROTO_P]==IP_PROTO_ICMP_V && buf[ICMP_TYPE_P]==ICMP_TYPE_ECHOREQUEST_V){
// a ping packet, let's send pong
make_echo_reply_from_request(buf,plen);
continue;
}
// tcp port 80 start
if (buf[IP_PROTO_P]==IP_PROTO_TCP_V&&buf[TCP_DST_PORT_H_P]==0&&buf[TCP_DST_PORT_L_P]==MYWWWPORT){
if (buf[TCP_FLAGS_P] & TCP_FLAGS_SYN_V){
make_tcp_synack_from_syn(buf);
// make_tcp_synack_from_syn does already send the syn,ack
continue;
}
if (buf[TCP_FLAGS_P] & TCP_FLAGS_ACK_V){
init_len_info(buf); // init some data structures
// we can possibly have no data, just ack:
dat_p=get_tcp_data_pointer();
if (dat_p==0){
if (buf[TCP_FLAGS_P] & TCP_FLAGS_FIN_V){
// finack, answer with ack
make_tcp_ack_from_any(buf);
}
// just an ack with no data, wait for next packet
continue;
}
if (strncmp("GET ",(char *)&(buf[dat_p]),4)!=0){
// head, post and other methods:
//
// for possible status codes see:
// http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html
plen=fill_tcp_data_p(buf,0,PSTR("HTTP/1.0 200 OK\r\nContent-Type: text/html\r\n\r\n<h1>200 OK</h1>"));
goto SENDTCP;
}
// any GET, any url:
plen=print_webpage(buf,enc28j60getrev());
SENDTCP:
make_tcp_ack_from_any(buf); // send ack for http get
make_tcp_ack_with_data(buf,plen); // send data
continue;
}
}
// tcp port 80 end
//
// udp start, we listen on udp port 1200=0x4B0
if (buf[IP_PROTO_P]==IP_PROTO_UDP_V&&buf[UDP_DST_PORT_H_P]==4&&buf[UDP_DST_PORT_L_P]==0xb0){
payloadlen=buf[UDP_LEN_L_P]-UDP_HEADER_LEN;
// you must sent a string starting with v
// e.g udpcom version 10.0.0.24
if (buf[UDP_DATA_P]=='v' ){
str[0]='v';
str[1]='e';
str[2]='r';
str[3]='=';
str[4]='B';
itoa((enc28j60getrev()),&(str[5]),10);
make_udp_reply_from_request(buf,str,strnlen(str,10),MYUDPPORT);
}
}
}
return (0);
}
/*
* 函数名：Web_Server
* 描述 ：在浏览器上创建一个web服务器，通过web里面的命令来控制开发板上的LED的亮灭。
* 输入 ：无
* 输出 ：无
* 返回 ：-0 运行成功
* 应用 ：1 在PC机的DOS界面输入： ping 192.168.1.15 (看能否ping通)
* 2 在IE浏览器中输入：http://192.168.1.15/123456 则会出现一个网页，通过网页
* 中的命令可以控制开发板中的LED的亮灭
*/
int Web_Server(void)
{
unsigned int plen, i1 = 0;
unsigned int dat_p;
// unsigned char i = 0;
unsigned char cmd, *buf1;
unsigned int payloadlen = 0;
/* 初始化 enc28j60 的MAC地址(物理地址),这个函数必须要调用一次 */
enc28j60Init(mymac);
/* PHY LED 配置,LED用来指示通信的状态 */
enc28j60PhyWrite(PHLCON,0x476);
/* 将enc28j60第三引脚的时钟输出改为：from 6.25MHz to 12.5MHz(本例程该引脚NC,没用到) */
//enc28j60clkout(2);
/* 初始化以太网 IP 层 */
init_ip_arp_udp_tcp(mymac,myip,mywwwport);
printf("服务器初始化成功！\n");
while(1)
{
// get the next new packet:
plen = enc28j60PacketReceive(BUFFER_SIZE, buf);
// plen will ne unequal to zero if there is a valid packet (without crc error)
if(plen==0)
{
continue;
}
// arp is broadcast if unknown but a host may also
// verify the mac address by sending it to
// a unicast address.
if(eth_type_is_arp_and_my_ip(buf,plen))
{
make_arp_answer_from_request(buf);
continue;
}
// check if ip packets are for us:
if(eth_type_is_ip_and_my_ip(buf,plen)==0)
{
continue;
}
if(buf[IP_PROTO_P]==IP_PROTO_ICMP_V && buf[ICMP_TYPE_P]==ICMP_TYPE_ECHOREQUEST_V)
{
// a ping packet, let's send pong DOS 下的 ping 命令包
make_echo_reply_from_request(buf, plen);
continue;
}
/*-----------------tcp port www start, compare only the lower byte-----------------------------------*/
if (buf[IP_PROTO_P]==IP_PROTO_TCP_V&&buf[TCP_DST_PORT_H_P]==0&&buf[TCP_DST_PORT_L_P]==mywwwport)
{
if (buf[TCP_FLAGS_P] & TCP_FLAGS_SYN_V)
{
make_tcp_synack_from_syn(buf);
// make_tcp_synack_from_syn does already send the syn,ack
continue;
}
if (buf[TCP_FLAGS_P] & TCP_FLAGS_ACK_V)
{
init_len_info(buf); // init some data structures
// we can possibly have no data, just ack:
dat_p=get_tcp_data_pointer();
if (dat_p==0)
{
if (buf[TCP_FLAGS_P] & TCP_FLAGS_FIN_V)
{
// finack, answer with ack
make_tcp_ack_from_any(buf);
}
// just an ack with no data, wait for next packet
continue;
}
if (strncmp("GET ",(char *)&(buf[dat_p]),4)!=0)
{
// head, post and other methods:
//
// for possible status codes see:
// http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html
plen=fill_tcp_data_p(buf,0,PSTR("HTTP/1.0 200 OK\r\nContent-Type: text/html\r\n\r\n<h1>200 OK</h1>"));
goto SENDTCP;
}
if (strncmp("/ ",(char *)&(buf[dat_p+4]),2)==0)
{
plen=fill_tcp_data_p(buf,0,PSTR("HTTP/1.0 200 OK\r\nContent-Type: text/html\r\n\r\n"));
plen=fill_tcp_data_p(buf,plen,PSTR("<p>Usage: "));
plen=fill_tcp_data(buf,plen,baseurl);
plen=fill_tcp_data_p(buf,plen,PSTR("password</p>"));
goto SENDTCP;
}
cmd=analyse_get_url((char *)&(buf[dat_p+5]));
// for possible status codes see:
// http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html
if (cmd==1)
{
plen=fill_tcp_data_p(buf,0,PSTR("HTTP/1.0 401 Unauthorized\r\nContent-Type: text/html\r\n\r\n<h1>401 Unauthorized</h1>"));
goto SENDTCP;
}
// if (cmd==1) // 用户程序
// {
// LED1(ON);
// i=1; // 命令 = 1
// }
// if (cmd==0) // 用户程序
// {
// LED1(OFF);
// i=0; // 命令 = 0
// }
// if (cmd==-2) or any other value
// just display the status:
plen=print_webpage(buf,1);
SENDTCP:
make_tcp_ack_from_any(buf); // send ack for http get
make_tcp_ack_with_data(buf,plen); // send data
continue;
}
}
/*-------------------------------------- tcp port www end ---------------------------------------*/
/*--------------------- udp start, we listen on udp port 1200=0x4B0 -----------------------------*/
if (buf[IP_PROTO_P]==IP_PROTO_UDP_V&&buf[UDP_DST_PORT_H_P]==4&&buf[UDP_DST_PORT_L_P]==0xb0)
{
payloadlen= buf[UDP_LEN_H_P];
payloadlen=payloadlen<<8;
payloadlen=(payloadlen+buf[UDP_LEN_L_P])-UDP_HEADER_LEN;
//payloadlen=buf[UDP_LEN_L_P]-UDP_HEADER_LEN;
ANSWER:
//while(1){
for(i1=0; i1<payloadlen; i1++) buf1[i1]=buf[UDP_DATA_P+i1];
//make_udp_reply_from_request(buf,str,strlen(str),myudpport);
make_udp_reply_from_request(buf,buf1,payloadlen,myudpport);
//}
}
/*----------------------------------------udp end -----------------------------------------------*/
}
return (0);
}
void EtherShield::ES_make_udp_reply_from_request(uint8_t *buf,char *data,uint16_t datalen,uint16_t port) {
make_udp_reply_from_request(buf,data,datalen,port);
}
int main(void){
uint16_t plen;
uint16_t dat_p;
uint8_t i=0;
uint8_t cmd_pos=0;
int8_t cmd;
uint8_t payloadlen=0;
char str[30];
char cmdval;
// set the clock speed to "no pre-scaler" (8MHz with internal osc or
// full external speed)
// set the clock prescaler. First write CLKPCE to enable setting of clock the
// next four instructions.
CLKPR=(1<<CLKPCE); // change enable
CLKPR=0; // "no pre-scaler"
delay_ms(1);
/* enable PD2/INT0, as input */
DDRD&= ~(1<<DDD2);
/*initialize enc28j60*/
enc28j60Init(mymac);
enc28j60clkout(2); // change clkout from 6.25MHz to 12.5MHz
delay_ms(10);
// LED
/* enable PB1, LED as output */
DDRB|= (1<<DDB1);
/* set output to Vcc, LED off */
PORTB|= (1<<PB1);
// the transistor on PD7
DDRD|= (1<<DDD7);
PORTD &= ~(1<<PD7);// transistor off
/* Magjack leds configuration, see enc28j60 datasheet, page 11 */
// LEDB=yellow LEDA=green
//
// 0x476 is PHLCON LEDA=links status, LEDB=receive/transmit
// enc28j60PhyWrite(PHLCON,0b0000 0100 0111 01 10);
enc28j60PhyWrite(PHLCON,0x476);
delay_ms(20);
/* set output to GND, red LED on */
PORTB &= ~(1<<PB1);
i=1;
//init the ethernet/ip layer:
init_ip_arp_udp_tcp(mymac,myip,MYWWWPORT);
while(1){
// get the next new packet:
plen = enc28j60PacketReceive(BUFFER_SIZE, buf);
/*plen will ne unequal to zero if there is a valid
* packet (without crc error) */
if(plen==0){
continue;
}
// arp is broadcast if unknown but a host may also
// verify the mac address by sending it to
// a unicast address.
if(eth_type_is_arp_and_my_ip(buf,plen)){
make_arp_answer_from_request(buf);
continue;
}
// check if ip packets are for us:
if(eth_type_is_ip_and_my_ip(buf,plen)==0){
continue;
}
// led----------
if (i){
/* set output to Vcc, LED off */
PORTB|= (1<<PB1);
i=0;
}else{
/* set output to GND, LED on */
PORTB &= ~(1<<PB1);
i=1;
}
if(buf[IP_PROTO_P]==IP_PROTO_ICMP_V && buf[ICMP_TYPE_P]==ICMP_TYPE_ECHOREQUEST_V){
// a ping packet, let's send pong
make_echo_reply_from_request(buf,plen);
continue;
}
// tcp port www start, compare only the lower byte
if (buf[IP_PROTO_P]==IP_PROTO_TCP_V&&buf[TCP_DST_PORT_H_P]==0&&buf[TCP_DST_PORT_L_P]==MYWWWPORT){
if (buf[TCP_FLAGS_P] & TCP_FLAGS_SYN_V){
make_tcp_synack_from_syn(buf);
// make_tcp_synack_from_syn does already send the syn,ack
continue;
}
if (buf[TCP_FLAGS_P] & TCP_FLAGS_ACK_V){
init_len_info(buf); // init some data structures
// we can possibly have no data, just ack:
dat_p=get_tcp_data_pointer();
if (dat_p==0){
if (buf[TCP_FLAGS_P] & TCP_FLAGS_FIN_V){
// finack, answer with ack
make_tcp_ack_from_any(buf);
}
// just an ack with no data, wait for next packet
continue;
}
if (strncmp("GET ",(char *)&(buf[dat_p]),4)!=0){
// head, post and other methods:
//
// for possible status codes see:
// http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html
plen=fill_tcp_data_p(buf,0,PSTR("HTTP/1.0 200 OK\r\nContent-Type: text/html\r\n\r\n<h1>200 OK</h1>"));
goto SENDTCP;
}
if (strncmp("/ ",(char *)&(buf[dat_p+4]),2)==0){
plen=fill_tcp_data_p(buf,0,PSTR("HTTP/1.0 200 OK\r\nContent-Type: text/html\r\n\r\n"));
plen=fill_tcp_data_p(buf,plen,PSTR("<p>Usage: http://host_or_ip/password</p>\n"));
goto SENDTCP;
}
cmd=analyse_get_url((char *)&(buf[dat_p+5]));
// for possible status codes see:
// http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html
if (cmd==-1){
plen=fill_tcp_data_p(buf,0,PSTR("HTTP/1.0 401 Unauthorized\r\nContent-Type: text/html\r\n\r\n<h1>401 Unauthorized</h1>"));
goto SENDTCP;
}
if (cmd==1){
PORTD|= (1<<PD7);// transistor on
}
if (cmd==0){
PORTD &= ~(1<<PD7);// transistor off
}
if (cmd==-3){
// redirect to add a trailing slash
plen=moved_perm(buf);
goto SENDTCP;
}
// if (cmd==-2) or any other value
// just display the status:
plen=print_webpage(buf,(PORTD & (1<<PD7)));
//
SENDTCP:
make_tcp_ack_from_any(buf); // send ack for http get
make_tcp_ack_with_data(buf,plen); // send data
continue;
}
}
// tcp port www end
//
// udp start, we listen on udp port 1200=0x4B0
if (buf[IP_PROTO_P]==IP_PROTO_UDP_V&&buf[UDP_DST_PORT_H_P]==4&&buf[UDP_DST_PORT_L_P]==0xb0){
payloadlen=buf[UDP_LEN_L_P]-UDP_HEADER_LEN;
// you must sent a string starting with v
// e.g udpcom version 10.0.0.24
if (verify_password((char *)&(buf[UDP_DATA_P]))){
// find the first comma which indicates
// the start of a command:
cmd_pos=0;
while(cmd_pos<payloadlen){
cmd_pos++;
if (buf[UDP_DATA_P+cmd_pos]==','){
cmd_pos++; // put on start of cmd
break;
}
}
// a command is one char and a value. At
// least 3 characters long. It has an '=' on
// position 2:
if (cmd_pos<2 || cmd_pos>payloadlen-3 || buf[UDP_DATA_P+cmd_pos+1]!='='){
strcpy(str,"e=no_cmd");
goto ANSWER;
}
// supported commands are
// t=1 t=0 t=?
if (buf[UDP_DATA_P+cmd_pos]=='t'){
cmdval=buf[UDP_DATA_P+cmd_pos+2];
if(cmdval=='1'){
PORTD|= (1<<PD7);// transistor on
strcpy(str,"t=1");
goto ANSWER;
}else if(cmdval=='0'){
PORTD &= ~(1<<PD7);// transistor off
strcpy(str,"t=0");
goto ANSWER;
}else if(cmdval=='?'){
if (PORTD & (1<<PD7)){
strcpy(str,"t=1");
goto ANSWER;
}
strcpy(str,"t=0");
goto ANSWER;
}
}
strcpy(str,"e=no_such_cmd");
goto ANSWER;
}
strcpy(str,"e=invalid_pw");
ANSWER:
make_udp_reply_from_request(buf,str,strlen(str),MYUDPPORT);
}
}
return (0);
}
