实例介绍
【实例简介】
【实例截图】
【实例截图】
【核心代码】
/*
* Copyright (c) 2001, Adam Dunkels.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Adam Dunkels.
* 4. The name of the author may not be used to endorse or promote
* products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* This file is part of the uIP TCP/IP stack.
*
* $Id: main.c,v 1.16 2006/06/11 21:55:03 adam Exp $
*
*/
#include "stdio.h"
#include "uip.h"
#include "uip_arp.h"
#include "tapdev.h"
#include "timer.h"
#include "web_server.h"
#include "dm9k_uip.h"
#include "string.h"
#include "led.h"
#define BUF ((struct uip_eth_hdr *)&uip_buf[0])
#ifndef NULL
#define NULL (void *)0
#endif /* NULL */
#define ETH_HEADER_LEN 14
// values of certain bytes:
#define ETHTYPE_ARP_H_V 0x08
#define ETHTYPE_ARP_L_V 0x06
#define ETHTYPE_IP_H_V 0x08
#define ETHTYPE_IP_L_V 0x00
// byte positions in the ethernet frame:
//
// Ethernet type field (2bytes):
#define ETH_TYPE_H_P 12
#define ETH_TYPE_L_P 13
//
#define ETH_DST_MAC 0
#define ETH_SRC_MAC 6
// ******* ARP *******
#define ETH_ARP_OPCODE_REPLY_H_V 0x0
#define ETH_ARP_OPCODE_REPLY_L_V 0x02
//
#define ETHTYPE_ARP_L_V 0x06
// arp.dst.ip
#define ETH_ARP_DST_IP_P 0x26
// arp.opcode
#define ETH_ARP_OPCODE_H_P 0x14
#define ETH_ARP_OPCODE_L_P 0x15
// arp.src.mac
#define ETH_ARP_SRC_MAC_P 0x16
#define ETH_ARP_SRC_IP_P 0x1c
#define ETH_ARP_DST_MAC_P 0x20
#define ETH_ARP_DST_IP_P 0x26
// ******* IP *******
#define IP_HEADER_LEN 0x14
// ip.src
#define IP_SRC_P 0x1a
#define IP_DST_P 0x1e
#define IP_HEADER_LEN_VER_P 0xe
#define IP_CHECKSUM_P 0x18
#define IP_TTL_P 0x16
#define IP_FLAGS_P 0x14
#define IP_P 0x0e
#define IP_TOTLEN_H_P 0x10
#define IP_TOTLEN_L_P 0x11
#define IP_PROTO_P 0x17
#define IP_PROTO_ICMP_V 1
#define IP_PROTO_TCP_V 6
// 17=0x11
#define IP_PROTO_UDP_V 17
// ******* ICMP *******
#define ICMP_TYPE_ECHOREPLY_V 0
#define ICMP_TYPE_ECHOREQUEST_V 8
//
#define ICMP_TYPE_P 0x22
#define ICMP_CHECKSUM_P 0x24
// ******* UDP *******
#define UDP_HEADER_LEN 8
//
#define UDP_SRC_PORT_H_P 0x22
#define UDP_SRC_PORT_L_P 0x23
#define UDP_DST_PORT_H_P 0x24
#define UDP_DST_PORT_L_P 0x25
//
#define UDP_LEN_H_P 0x26
#define UDP_LEN_L_P 0x27
#define UDP_CHECKSUM_H_P 0x28
#define UDP_CHECKSUM_L_P 0x29
#define UDP_DATA_P 0x2a
// ******* TCP *******
#define TCP_SRC_PORT_H_P 0x22
#define TCP_SRC_PORT_L_P 0x23
#define TCP_DST_PORT_H_P 0x24
#define TCP_DST_PORT_L_P 0x25
// the tcp seq number is 4 bytes 0x26-0x29
#define TCP_SEQ_H_P 0x26
#define TCP_SEQACK_H_P 0x2a
// flags: SYN=2
#define TCP_FLAGS_P 0x2f
#define TCP_FLAGS_SYN_V 2
#define TCP_FLAGS_FIN_V 1
#define TCP_FLAGS_PUSH_V 8
#define TCP_FLAGS_SYNACK_V 0x12
#define TCP_FLAGS_ACK_V 0x10
#define TCP_FLAGS_PSHACK_V 0x18
// plain len without the options:
#define TCP_HEADER_LEN_PLAIN 20
#define TCP_HEADER_LEN_P 0x2e
#define TCP_CHECKSUM_H_P 0x32
#define TCP_CHECKSUM_L_P 0x33
#define TCP_OPTIONS_P 0x36
static unsigned char ipaddr[4] = {192, 168, 1, 253};
static unsigned char macaddr[6] = {0x00,0x1a,0x2a,0x3a,0x4a,0x52};
//uint8_t RemoteIP[4] = {103,21,136,175};
uint8_t RemoteIP[4] = {192, 168, 1, 12};
uint16_t LocalPort = 8200; //????
uint16_t RemotePort = 8752; //????
void make_eth(unsigned char* buf);
u8 tx_buf[25] = {0xA0, 0x00, 0x00, 0x00, 0x00, 0x00 , 0x00 , 0x00 , 0x10 , 0x81 , 0x00 , 0x00 , 0x00 , 0x00 , 0x00 , 0x00 , 0x00 , 0x00 , 0x00 , 0x00 , 0x00 , 0x00 , 0x00 , 0x00 , 0x32};
uint8_t enc_send_size = 10; //需要发送的字节数
uint8_t enc_send_buf[256] = {0}; //???????256
u8 enc_recive_buf[256] = {0}; //????????256
struct uip_udp_conn *my_udp_conn; //udp??
struct uip_conn *my_tcp_conn; //tcp?????
u8_t tcp_server_flag = 0;//tcp??????????
int flag_t = 0;
//**************??????***********************************************
void tcp_newdata()
{
char *nptr;
enc_send_size = uip_datalen(); //??????
nptr = (char *)uip_appdata;
memcpy(enc_send_buf, nptr, enc_send_size);
}
void tcp_senddata()
{
uip_send(enc_send_buf, enc_send_size);
}
void udp_newdata()
{
char *nptr;
enc_send_size = uip_datalen(); //??????
nptr = (char *)uip_appdata;
memcpy(enc_send_buf, nptr, enc_send_size);
}
void udp_senddata()
{
char *nptr;
nptr = (char *)uip_appdata;
memcpy(nptr, enc_send_buf, enc_send_size);
uip_udp_send(enc_send_size);
}
//??tcp????????
void tcp_server_appcall(void)
{
u16_t datlen;
//********?????????????**********************
/* if (uip_aborted()){tcp_aborted();}
if (uip_timedout()){tcp_timedout();}
if (uip_closed()){tcp_closed();}
if (uip_connected()){tcp_connected();}
if (uip_acked()){tcp_acked();}
*/
/* ???????TCP???,???????? */
if (uip_newdata())
{
//tcp_newdata();
if((uip_len > 0) && (uip_len <= 1446))
{
if(1)
{
if(memcmp(uip_appdata,"Hello,",4) == 0) // ??IP
{
datlen = strlen("Hello! This is TCP Server Test!\n");
memcpy(uip_appdata, "Hello! This is TCP Server Test!\n", datlen);
//uip_send(uip_appdata, datlen);
tcp_newdata();
}
}
}
}
/* ???????????,??uip???? */
if (uip_rexmit() || uip_newdata() )
{
tcp_senddata();
}
}
//??tcp????????
void tcp_client_appcall(void)
{
uint16_t datlen;
u8_t *rx;
//********?????????????**********************
/* if (uip_aborted()){tcp_aborted();}
if (uip_timedout()){tcp_timedout();}
if (uip_closed()){tcp_closed();}
if (uip_connected()){tcp_connected();}
if (uip_acked()){tcp_acked();}
*/
/* ???????TCP???,???????? */
if(uip_connected())
{
tcp_server_flag = 0;
}
if (uip_newdata())
{
//tcp_newdata();
//tcp_newdata();
if((uip_len > 0) && (uip_len <= 1446))
{
if(1)
{
if(memcmp(uip_appdata,"Hello", 5) == 0) // test
{
datlen = strlen("This is TCP Client Test!\n");
uip_len = datlen;
memcpy(uip_appdata, "This is TCP Client Test!\n", datlen);
//uip_send(uip_appdata, datlen);
tcp_newdata();
}
else if(memcmp(uip_appdata,"LED1 On", 7) == 0) // ??
{
LED1_ON();
uip_len = strlen("LED is On!\n");
memcpy(uip_appdata, "LED is On!\n", uip_len);
//uip_send(uip_appdata, datlen);
tcp_newdata();
}
else if(memcmp(uip_appdata,"LED1 Off", 8) == 0) // ??
{
LED1_OFF();
uip_len = strlen("LED is Off!\n");
memcpy(uip_appdata, "LED is Off!\n", uip_len);
//uip_send(uip_appdata, datlen);
tcp_newdata();
}
else if(memcmp(uip_appdata,"?", 8) == 0) // ??????
{
uip_len = strlen("LED is Off!\n");
memcpy(uip_appdata, "LED is Off!\n", uip_len);
//uip_send(uip_appdata, datlen);
tcp_newdata();
}
else
{
if(uip_len == 19)
{
rx = (char *)uip_appdata;
memset(enc_recive_buf, 0, 256);
memcpy(enc_recive_buf, rx, uip_len);
if((enc_recive_buf[0] == 0xa0) && (enc_recive_buf[5] == 0x01) && (enc_recive_buf[9] == 0x09))
{
LED1_FLASH();
}
}
}
}
}
}
if(flag_t >= 3)
{
enc_send_size = 25;
memcpy(enc_send_buf, tx_buf, 25);
tcp_senddata();
flag_t = 0;
}
/* ???????????,??uip???? */
if (uip_rexmit() || uip_newdata())
{
tcp_senddata();
}
if(uip_closed())
{
tcp_server_flag ;
if(tcp_server_flag == 2)
{
uip_ipaddr_t ipaddr; //??IP????
uip_ipaddr(ipaddr, RemoteIP[0], RemoteIP[1], RemoteIP[2], RemoteIP[3]); //??IP
my_tcp_conn = uip_connect(&ipaddr, HTONS(RemotePort)); //???????
tcp_server_flag = 0;
}
}
if( uip_aborted())
{
uip_ipaddr_t ipaddr; //??IP????
uip_ipaddr(ipaddr, RemoteIP[0], RemoteIP[1], RemoteIP[2], RemoteIP[3]); //??IP
my_tcp_conn = uip_connect(&ipaddr, HTONS(RemotePort)); //???????
}
}
void make_arp_answer_from_request(unsigned char* buf)
{
unsigned char i = 0;
//
make_eth(buf);
buf[ETH_ARP_OPCODE_H_P] = ETH_ARP_OPCODE_REPLY_H_V;
buf[ETH_ARP_OPCODE_L_P] = ETH_ARP_OPCODE_REPLY_L_V;
// fill the mac addresses:
while (i < 6)
{
buf[ETH_ARP_DST_MAC_P i] = buf[ETH_ARP_SRC_MAC_P i];
buf[ETH_ARP_SRC_MAC_P i] = macaddr[i];
i ;
}
i = 0;
while (i < 4)
{
buf[ETH_ARP_DST_IP_P i] = buf[ETH_ARP_SRC_IP_P i];
buf[ETH_ARP_SRC_IP_P i] = ipaddr[i];
i ;
}
// eth arp is 42 bytes:
//enc28j60PacketSend(42, buf);
etherdev_send(buf, 42);
}
// make a return eth header from a received eth packet
void make_eth(unsigned char* buf)
{
unsigned char i = 0;
//
//copy the destination mac from the source and fill my mac into src
while (i < 6)
{
buf[ETH_DST_MAC i] = buf[ETH_SRC_MAC i];
buf[ETH_SRC_MAC i] = macaddr[i];
i ;
}
}
unsigned char eth_type_is_arp_and_my_ip(unsigned char* buf, unsigned int len)
{
unsigned char i = 0;
//
if (len < 41)
{
return(0);
}
if (buf[ETH_TYPE_H_P] != ETHTYPE_ARP_H_V || buf[ETH_TYPE_L_P] != ETHTYPE_ARP_L_V)
{
return(0);
}
while (i < 4)
{
if (buf[ETH_ARP_DST_IP_P i] != ipaddr[i])
{
return(0);
}
i ;
}
return(1);
}
//udp?????
void udp_appcall(void)
{
//********?????????????**********************
/* if (uip_aborted()){udp_aborted();}
if (uip_timedout()){udp_timedout();}
if (uip_closed()){udp_closed();}
if (uip_connected()){udp_connected();}
if (uip_acked()){udp_acked();}
*/
/* ???????TCP???,???????? */
if (uip_newdata())
{
udp_newdata();
}
/* ???????????????????????,??uip???? */
if (uip_rexmit() || uip_newdata())
{
udp_senddata();
}
}
//??UDP?????*****************************
void Udp_Init(void)
{
uip_ipaddr_t ipaddr;//??IP????
uip_ipaddr(ipaddr, RemoteIP[0], RemoteIP[1], RemoteIP[2], RemoteIP[3]); //??IP
if(my_udp_conn != NULL)
{
uip_udp_remove(my_udp_conn);//????????,????
}
my_udp_conn = uip_udp_new(&ipaddr, HTONS(RemotePort));//???????
if(my_udp_conn != NULL)
{
uip_udp_bind(my_udp_conn, HTONS(LocalPort));//??????
}
}
//??tcp??????
void Tcp_Init(void)
{
uip_ipaddr_t ipaddr; //??IP????
uip_ipaddr(ipaddr, RemoteIP[0], RemoteIP[1], RemoteIP[2], RemoteIP[3]); //??IP
my_tcp_conn = uip_connect(&ipaddr, HTONS(RemotePort)); //???????
}
int WebServer(void)
{
int i;
uip_ipaddr_t ipaddr;
struct timer periodic_timer, arp_timer;
/*设置TCP超时处理时间和ARP老化时间*/
timer_set(&periodic_timer, CLOCK_SECOND / 2);
timer_set(&arp_timer, CLOCK_SECOND * 10);
printf("Start WebServer...\n\r");
tapdev_init();
printf("uip_init\n\r");
uip_init();
printf("uip ip address : 192,168,1,253\n\r");
uip_ipaddr(ipaddr, 192,168,1,253);
uip_sethostaddr(ipaddr);
printf("uip route address : 192,168,1,1\n\r");
uip_ipaddr(ipaddr, 192,168,1,1);
uip_setdraddr(ipaddr);
printf("uip net mask : 255,255,255,0\n\r");
uip_ipaddr(ipaddr, 255,255,255,0);
uip_setnetmask(ipaddr);
// httpd_init();
uip_listen(HTONS(8756)); // tcp
Udp_Init(); // udp
Tcp_Init(); // tcp client
printf("Enter listen status...\n\r");
// printf("Press Right key to Quit\n\r");
/* telnetd_init();*/
/* hello_world_init();*/
/* {
u8_t mac[6] = {1,2,3,4,5,6};
dhcpc_init(&mac, 6);
}*/
/*uip_ipaddr(ipaddr, 127,0,0,1);
smtp_configure("localhost", ipaddr);
SMTP_SEND("adam@sics.se", NULL, "uip-testing@example.com",
"Testing SMTP from uIP",
"Test message sent by uIP\r\n");*/
/*
webclient_init();
resolv_init();
uip_ipaddr(ipaddr, 195,54,122,204);
resolv_conf(ipaddr);
resolv_query("www.sics.se");*/
while(0)
{
uip_len = tapdev_read();
if (uip_len == 0)
{
continue;
}
if (eth_type_is_arp_and_my_ip(uip_buf, uip_len))
{
make_arp_answer_from_request(uip_buf);
//USART_DMASendText(USART1,"make_arp_answer_from_request\n");
continue;
}
}
while(1)
{
uip_len = tapdev_read();
if(uip_len > 0)
{
/*收到的是IP数据，调用uip_input()处理*/
if(BUF->type == htons(UIP_ETHTYPE_IP))
{
uip_arp_ipin();
uip_input();
/* If the above function invocation resulted in data that
should be sent out on the network, the global variable
uip_len is set to a value > 0. */
/*处理完成后，如果uip_buf中有数据，则调用etherdev_send 发送出去*/
if (uip_len > 0)
{
//printf("DM9000AE Detect Ok, vid&pid = %08X\n\r", uip_len);
uip_arp_out();
tapdev_send();
}
}
else if (BUF->type == htons(UIP_ETHTYPE_ARP))
{
uip_arp_arpin();
/* If the above function invocation resulted in data that
should be sent out on the network, the global variable
uip_len is set to a value > 0. */
if (uip_len > 0)
{
tapdev_send();
}
}
}
else if(timer_expired(&periodic_timer))
{
//printf(" 0.5s periodic timer expired\n\r");
timer_reset(&periodic_timer);
for(i = 0; i < UIP_CONNS; i )
{
uip_periodic(i);
/* If the above function invocation resulted in data that
should be sent out on the network, the global variable
uip_len is set to a value > 0. */
if(uip_len > 0)
{
uip_arp_out(); //发送一个arp请求
tapdev_send();
}
}
#if UIP_UDP
for(i = 0; i < UIP_UDP_CONNS; i )
{
uip_udp_periodic(i);
/* If the above function invocation resulted in data that
should be sent out on the network, the global variable
uip_len is set to a value > 0. */
if(uip_len > 0)
{
uip_arp_out();
tapdev_send();
}
}
#endif /* UIP_UDP */
/* Call the ARP timer function every 10 seconds. */
if (timer_expired(&arp_timer))
{
//printf(" 10s periodic timer expired\n\r");
timer_reset(&arp_timer);
uip_arp_timer();
}
}
else
{
/* 添加退出的操作
if (ReadKey() == RIGHT)
{
return 0;
}
*/
}
}
return 0;
}
//uip-tcp??????
void tcp_appcall(void)
{
if(uip_conn->lport == HTONS(80))
{
httpd_appcall();
}
if(uip_conn->lport == HTONS(LocalPort))
{
tcp_server_appcall();
}
if(uip_conn->rport == HTONS(RemotePort))
{
tcp_client_appcall();
}
}
/*---------------------------------------------------------------------------*/
void
uip_log(char *m)
{
printf("uIP log message: %s\n", m);
}
void
resolv_found(char *name, u16_t *ipaddr)
{
// u16_t *ipaddr2;
if(ipaddr == NULL)
{
printf("Host '%s' not found.\n", name);
}
else
{
printf("Found name '%s' = %d.%d.%d.%d\n", name,
htons(ipaddr[0]) >> 8,
htons(ipaddr[0]) & 0xff,
htons(ipaddr[1]) >> 8,
htons(ipaddr[1]) & 0xff);
/* webclient_get("www.sics.se", 80, "/~adam/uip");*/
}
}
#ifdef __DHCPC_H__
void
dhcpc_configured(const struct dhcpc_state *s)
{
uip_sethostaddr(s->ipaddr);
uip_setnetmask(s->netmask);
uip_setdraddr(s->default_router);
resolv_conf(s->dnsaddr);
}
#endif /* __DHCPC_H__ */
void
smtp_done(unsigned char code)
{
printf("SMTP done with code %d\n", code);
}
void
webclient_closed(void)
{
printf("Webclient: connection closed\n");
}
void
webclient_aborted(void)
{
printf("Webclient: connection aborted\n");
}
void
webclient_timedout(void)
{
printf("Webclient: connection timed out\n");
}
void
webclient_connected(void)
{
printf("Webclient: connected, waiting for data...\n");
}
void
webclient_datahandler(char *data, u16_t len)
{
printf("Webclient: got %d bytes of data.\n", len);
}
/*---------------------------------------------------------------------------*/
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