Merge pull request #798 from armink/add_apps_to_lwip202
[lwIP] Add apps to lwip202
This commit is contained in:
Bernard Xiong
GitHub
commit
16b54610f6
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@ -75,6 +75,10 @@ if GetDepend(['RT_LWIP_SNMP']):
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if GetDepend(['RT_LWIP_PPP']):
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src += ppp_src
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path += [GetCurrentDir() + '/src/netif/ppp']
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# For testing apps
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if GetDepend(['RT_USING_NETUTILS']):
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src += Glob('./apps/*.c')
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group = DefineGroup('lwIP', src, depend = ['RT_USING_LWIP', 'RT_USING_LWIP202'], CPPPATH = path)
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@ -0,0 +1,201 @@
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/*
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* netutils: ping implementation
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*/
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#include "lwip/opt.h"
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#include "lwip/mem.h"
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#include "lwip/icmp.h"
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#include "lwip/netif.h"
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#include "lwip/sys.h"
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#include "lwip/sockets.h"
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#include "lwip/inet.h"
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#include "lwip/inet_chksum.h"
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#include "lwip/ip.h"
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/**
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* PING_DEBUG: Enable debugging for PING.
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*/
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#ifndef PING_DEBUG
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#define PING_DEBUG LWIP_DBG_ON
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#endif
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/** ping receive timeout - in milliseconds */
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#define PING_RCV_TIMEO rt_tick_from_millisecond(2000)
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/** ping delay - in milliseconds */
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#define PING_DELAY rt_tick_from_millisecond(1000)
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/** ping identifier - must fit on a u16_t */
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#ifndef PING_ID
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#define PING_ID 0xAFAF
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#endif
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/** ping additional data size to include in the packet */
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#ifndef PING_DATA_SIZE
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#define PING_DATA_SIZE 32
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#endif
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/* ping variables */
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static u16_t ping_seq_num;
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struct _ip_addr
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{
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rt_uint8_t addr0, addr1, addr2, addr3;
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};
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/** Prepare a echo ICMP request */
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static void ping_prepare_echo( struct icmp_echo_hdr *iecho, u16_t len)
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{
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size_t i;
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size_t data_len = len - sizeof(struct icmp_echo_hdr);
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ICMPH_TYPE_SET(iecho, ICMP_ECHO);
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ICMPH_CODE_SET(iecho, 0);
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iecho->chksum = 0;
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iecho->id = PING_ID;
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iecho->seqno = htons(++ping_seq_num);
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/* fill the additional data buffer with some data */
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for(i = 0; i < data_len; i++)
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{
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((char*)iecho)[sizeof(struct icmp_echo_hdr) + i] = (char)i;
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}
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iecho->chksum = inet_chksum(iecho, len);
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}
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/* Ping using the socket ip */
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static err_t ping_send(int s, ip_addr_t *addr, int size)
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{
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int err;
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struct icmp_echo_hdr *iecho;
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struct sockaddr_in to;
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size_t ping_size = sizeof(struct icmp_echo_hdr) + size;
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LWIP_ASSERT("ping_size is too big", ping_size <= 0xffff);
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iecho = rt_malloc(ping_size);
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if (iecho == RT_NULL)
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{
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return ERR_MEM;
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}
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ping_prepare_echo(iecho, (u16_t)ping_size);
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to.sin_len = sizeof(to);
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to.sin_family = AF_INET;
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to.sin_addr.s_addr = addr->addr;
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err = lwip_sendto(s, iecho, ping_size, 0, (struct sockaddr*)&to, sizeof(to));
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rt_free(iecho);
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return (err == ping_size ? ERR_OK : ERR_VAL);
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}
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static int ping_recv(int s, int *ttl)
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{
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char buf[64];
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int fromlen = sizeof(struct sockaddr_in), len;
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struct sockaddr_in from;
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struct ip_hdr *iphdr;
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struct icmp_echo_hdr *iecho;
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while((len = lwip_recvfrom(s, buf, sizeof(buf), 0, (struct sockaddr*)&from, (socklen_t*)&fromlen)) > 0)
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{
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if (len >= (sizeof(struct ip_hdr)+sizeof(struct icmp_echo_hdr)))
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{
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iphdr = (struct ip_hdr *)buf;
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iecho = (struct icmp_echo_hdr *)(buf+(IPH_HL(iphdr) * 4));
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if ((iecho->id == PING_ID) && (iecho->seqno == htons(ping_seq_num)))
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{
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*ttl = iphdr->_ttl;
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return len;
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}
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}
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}
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return len;
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}
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rt_err_t ping(char* target, rt_uint32_t times, rt_size_t size)
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{
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int s, ttl, recv_len;
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struct timeval timeout = { PING_RCV_TIMEO / RT_TICK_PER_SECOND, PING_RCV_TIMEO % RT_TICK_PER_SECOND };
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ip_addr_t ping_target;
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rt_uint32_t send_times;
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rt_tick_t recv_start_tick;
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struct _ip_addr
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{
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rt_uint8_t addr0, addr1, addr2, addr3;
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} *addr;
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send_times = 0;
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ping_seq_num = 0;
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if(size == 0)
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size = PING_DATA_SIZE;
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if (inet_aton(target, &ping_target) == 0)
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{
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rt_kprintf("ping: unknown host %s\n", target);
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return -RT_ERROR;
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}
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addr = (struct _ip_addr*)&ping_target;
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if ((s = lwip_socket(AF_INET, SOCK_RAW, IP_PROTO_ICMP)) < 0)
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{
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rt_kprintf("ping: create socket failled\n");
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return -RT_ERROR;
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}
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lwip_setsockopt(s, SOL_SOCKET, SO_RCVTIMEO, &timeout, sizeof(struct timeval));
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while (1)
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{
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if (ping_send(s, &ping_target, size) == ERR_OK)
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{
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recv_start_tick = rt_tick_get();
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if ((recv_len = ping_recv(s, &ttl)) >= 0)
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{
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rt_kprintf("%d bytes from %d.%d.%d.%d icmp_seq=%d ttl=%d time=%d ticks\n", recv_len, addr->addr0,
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addr->addr1, addr->addr2, addr->addr3, send_times, ttl, rt_tick_get() - recv_start_tick);
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}
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else
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{
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rt_kprintf("From %d.%d.%d.%d icmp_seq=%d timeout\n", addr->addr0, addr->addr1, addr->addr2,
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addr->addr3, send_times);
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}
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}
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else
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{
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rt_kprintf("Send %d.%d.%d.%d - error\n", addr->addr0, addr->addr1, addr->addr2, addr->addr3);
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}
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send_times ++;
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if (send_times >= times) break; /* send ping times reached, stop */
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rt_thread_delay(PING_DELAY); /* take a delay */
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}
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lwip_close(s);
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return RT_EOK;
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}
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#ifdef RT_USING_FINSH
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#include <finsh.h>
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FINSH_FUNCTION_EXPORT(ping, ping network host);
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int cmd_ping(int argc, char **argv)
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{
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if (argc == 1)
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{
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rt_kprintf("Please input: ping <host address>\n");
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}
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else
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{
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ping(argv[1], 4, 0);
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}
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return 0;
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}
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FINSH_FUNCTION_EXPORT_ALIAS(cmd_ping, __cmd_ping, ping network host);
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#endif
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@ -0,0 +1,391 @@
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#include <rtthread.h>
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#include <lwip/api.h>
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#include <lwip/sockets.h>
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#include <rtdevice.h>
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#include <finsh.h>
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#include <shell.h>
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#define TELNET_PORT 23
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#define TELNET_BACKLOG 5
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#define RX_BUFFER_SIZE 256
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#define TX_BUFFER_SIZE 4096
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#define ISO_nl 0x0a
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#define ISO_cr 0x0d
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#define STATE_NORMAL 0
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#define STATE_IAC 1
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#define STATE_WILL 2
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#define STATE_WONT 3
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#define STATE_DO 4
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#define STATE_DONT 5
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#define STATE_CLOSE 6
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#define TELNET_IAC 255
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#define TELNET_WILL 251
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#define TELNET_WONT 252
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#define TELNET_DO 253
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#define TELNET_DONT 254
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struct telnet_session
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{
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struct rt_ringbuffer rx_ringbuffer;
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struct rt_ringbuffer tx_ringbuffer;
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rt_mutex_t rx_ringbuffer_lock;
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rt_mutex_t tx_ringbuffer_lock;
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struct rt_device device;
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rt_int32_t server_fd;
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rt_int32_t client_fd;
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/* telnet protocol */
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rt_uint8_t state;
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rt_uint8_t echo_mode;
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};
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static struct telnet_session* telnet;
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/* process tx data */
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static void send_to_client(struct telnet_session* telnet)
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{
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rt_size_t length;
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rt_uint8_t tx_buffer[32];
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while (1)
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{
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rt_memset(tx_buffer, 0, sizeof(tx_buffer));
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rt_mutex_take(telnet->tx_ringbuffer_lock, RT_WAITING_FOREVER);
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/* get buffer from ringbuffer */
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length = rt_ringbuffer_get(&(telnet->tx_ringbuffer), tx_buffer, sizeof(tx_buffer));
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rt_mutex_release(telnet->tx_ringbuffer_lock);
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/* do a tx procedure */
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if (length > 0)
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{
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send(telnet->client_fd, tx_buffer, length, 0);
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}
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else break;
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}
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}
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/* send telnet option to remote */
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static void send_option_to_client(struct telnet_session* telnet, rt_uint8_t option, rt_uint8_t value)
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{
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rt_uint8_t optbuf[4];
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optbuf[0] = TELNET_IAC;
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optbuf[1] = option;
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optbuf[2] = value;
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optbuf[3] = 0;
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rt_mutex_take(telnet->tx_ringbuffer_lock, RT_WAITING_FOREVER);
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rt_ringbuffer_put(&telnet->tx_ringbuffer, optbuf, 3);
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rt_mutex_release(telnet->tx_ringbuffer_lock);
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send_to_client(telnet);
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}
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/* process rx data */
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static void process_rx(struct telnet_session* telnet, rt_uint8_t *data, rt_size_t length)
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{
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rt_size_t rx_length, index;
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for (index = 0; index < length; index ++)
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{
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switch(telnet->state)
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{
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case STATE_IAC:
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if (*data == TELNET_IAC)
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{
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rt_mutex_take(telnet->rx_ringbuffer_lock, RT_WAITING_FOREVER);
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/* put buffer to ringbuffer */
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rt_ringbuffer_putchar(&(telnet->rx_ringbuffer), *data);
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rt_mutex_release(telnet->rx_ringbuffer_lock);
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telnet->state = STATE_NORMAL;
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}
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else
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{
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/* set telnet state according to received package */
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switch (*data)
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{
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case TELNET_WILL: telnet->state = STATE_WILL; break;
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case TELNET_WONT: telnet->state = STATE_WONT; break;
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case TELNET_DO: telnet->state = STATE_DO; break;
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case TELNET_DONT: telnet->state = STATE_DONT; break;
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default: telnet->state = STATE_NORMAL; break;
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}
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}
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break;
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/* don't option */
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case STATE_WILL:
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case STATE_WONT:
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send_option_to_client(telnet, TELNET_DONT, *data);
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telnet->state = STATE_NORMAL;
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break;
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/* won't option */
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case STATE_DO:
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case STATE_DONT:
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send_option_to_client(telnet, TELNET_WONT, *data);
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telnet->state = STATE_NORMAL;
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break;
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case STATE_NORMAL:
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if (*data == TELNET_IAC) telnet->state = STATE_IAC;
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else if (*data != '\r') /* ignore '\r' */
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{
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rt_mutex_take(telnet->rx_ringbuffer_lock, RT_WAITING_FOREVER);
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/* put buffer to ringbuffer */
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rt_ringbuffer_putchar(&(telnet->rx_ringbuffer), *data);
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rt_mutex_release(telnet->rx_ringbuffer_lock);
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}
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break;
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}
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data ++;
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}
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rt_mutex_take(telnet->rx_ringbuffer_lock, RT_WAITING_FOREVER);
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/* get total size */
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rx_length = rt_ringbuffer_data_len(&telnet->rx_ringbuffer);
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rt_mutex_release(telnet->rx_ringbuffer_lock);
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/* indicate there are reception data */
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if ((rx_length > 0) && (telnet->device.rx_indicate != RT_NULL))
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telnet->device.rx_indicate(&telnet->device, rx_length);
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return;
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}
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/* client close */
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static void client_close(struct telnet_session* telnet)
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{
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/* set console */
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rt_console_set_device(RT_CONSOLE_DEVICE_NAME);
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/* set finsh device */
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finsh_set_device(RT_CONSOLE_DEVICE_NAME);
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/* close connection */
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closesocket(telnet->client_fd);
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/* restore shell option */
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finsh_set_echo(telnet->echo_mode);
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rt_kprintf("resume console to %s\n", RT_CONSOLE_DEVICE_NAME);
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}
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/* RT-Thread Device Driver Interface */
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static rt_err_t telnet_init(rt_device_t dev)
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{
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return RT_EOK;
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}
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static rt_err_t telnet_open(rt_device_t dev, rt_uint16_t oflag)
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{
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return RT_EOK;
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}
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static rt_err_t telnet_close(rt_device_t dev)
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{
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return RT_EOK;
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}
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static rt_size_t telnet_read(rt_device_t dev, rt_off_t pos, void* buffer, rt_size_t size)
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{
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rt_size_t result;
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/* read from rx ring buffer */
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rt_mutex_take(telnet->rx_ringbuffer_lock, RT_WAITING_FOREVER);
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result = rt_ringbuffer_get(&(telnet->rx_ringbuffer), buffer, size);
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rt_mutex_release(telnet->rx_ringbuffer_lock);
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return result;
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}
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static rt_size_t telnet_write (rt_device_t dev, rt_off_t pos, const void* buffer, rt_size_t size)
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{
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const rt_uint8_t *ptr;
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ptr = (rt_uint8_t*) buffer;
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rt_mutex_take(telnet->tx_ringbuffer_lock, RT_WAITING_FOREVER);
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while (size)
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{
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if (*ptr == '\n')
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rt_ringbuffer_putchar(&telnet->tx_ringbuffer, '\r');
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if (rt_ringbuffer_putchar(&telnet->tx_ringbuffer, *ptr) == 0) /* overflow */
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break;
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ptr++;
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size--;
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}
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rt_mutex_release(telnet->tx_ringbuffer_lock);
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/* send data to telnet client */
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send_to_client(telnet);
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return (rt_uint32_t) ptr - (rt_uint32_t) buffer;
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}
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static rt_err_t telnet_control(rt_device_t dev, rt_uint8_t cmd, void *args)
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{
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return RT_EOK;
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}
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/* telnet server thread entry */
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static void telnet_thread(void* parameter)
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{
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#define RECV_BUF_LEN 64
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struct sockaddr_in addr;
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socklen_t addr_size;
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rt_uint8_t recv_buf[RECV_BUF_LEN];
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rt_int32_t recv_len = 0;
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if ((telnet->server_fd = socket(AF_INET, SOCK_STREAM, 0)) == -1)
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{
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rt_kprintf("telnet: create socket failed\n");
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return;
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}
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addr.sin_family = AF_INET;
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addr.sin_port = htons(TELNET_PORT);
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addr.sin_addr.s_addr = INADDR_ANY;
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rt_memset(&(addr.sin_zero), 0, sizeof(addr.sin_zero));
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if (bind(telnet->server_fd, (struct sockaddr *)&addr, sizeof(struct sockaddr)) == -1)
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{
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rt_kprintf("telnet: bind socket failed\n");
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return;
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}
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if (listen(telnet->server_fd, TELNET_BACKLOG) == -1)
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{
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rt_kprintf("telnet: listen socket failed\n");
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return;
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}
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|
||||
/* register telnet device */
|
||||
telnet->device.type = RT_Device_Class_Char;
|
||||
telnet->device.init = telnet_init;
|
||||
telnet->device.open = telnet_open;
|
||||
telnet->device.close = telnet_close;
|
||||
telnet->device.read = telnet_read;
|
||||
telnet->device.write = telnet_write;
|
||||
telnet->device.control = telnet_control;
|
||||
|
||||
/* no private */
|
||||
telnet->device.user_data = RT_NULL;
|
||||
|
||||
/* register telnet device */
|
||||
rt_device_register(&telnet->device, "telnet",
|
||||
RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_STREAM);
|
||||
|
||||
while (1)
|
||||
{
|
||||
rt_kprintf("telnet server waiting for connection\n");
|
||||
|
||||
/* grab new connection */
|
||||
if ((telnet->client_fd = accept(telnet->server_fd, (struct sockaddr * )&addr, &addr_size)) == -1)
|
||||
{
|
||||
continue;
|
||||
}
|
||||
|
||||
rt_kprintf("new telnet client(%s:%d) connection, switch console to telnet...\n", inet_ntoa(addr.sin_addr), addr.sin_port);
|
||||
|
||||
/* process the new connection */
|
||||
/* set console */
|
||||
rt_console_set_device("telnet");
|
||||
/* set finsh device */
|
||||
finsh_set_device("telnet");
|
||||
|
||||
/* set init state */
|
||||
telnet->state = STATE_NORMAL;
|
||||
|
||||
telnet->echo_mode = finsh_get_echo();
|
||||
/* disable echo mode */
|
||||
finsh_set_echo(0);
|
||||
|
||||
while (1)
|
||||
{
|
||||
/* try to send all data in tx ringbuffer */
|
||||
send_to_client(telnet);
|
||||
|
||||
/* do a rx procedure */
|
||||
if ((recv_len = recv(telnet->client_fd, recv_buf, RECV_BUF_LEN, 0)) > 0)
|
||||
{
|
||||
process_rx(telnet, recv_buf, recv_len);
|
||||
}
|
||||
else
|
||||
{
|
||||
/* close connection */
|
||||
client_close(telnet);
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/* telnet server */
|
||||
void telnet_srv(void)
|
||||
{
|
||||
rt_thread_t tid;
|
||||
|
||||
if (telnet == RT_NULL)
|
||||
{
|
||||
rt_uint8_t *ptr;
|
||||
|
||||
telnet = rt_malloc(sizeof(struct telnet_session));
|
||||
if (telnet == RT_NULL)
|
||||
{
|
||||
rt_kprintf("telnet: no memory\n");
|
||||
return;
|
||||
}
|
||||
/* init ringbuffer */
|
||||
ptr = rt_malloc(RX_BUFFER_SIZE);
|
||||
if (ptr)
|
||||
{
|
||||
rt_ringbuffer_init(&telnet->rx_ringbuffer, ptr, RX_BUFFER_SIZE);
|
||||
}
|
||||
else
|
||||
{
|
||||
rt_kprintf("telnet: no memory\n");
|
||||
return;
|
||||
}
|
||||
ptr = rt_malloc(TX_BUFFER_SIZE);
|
||||
if (ptr)
|
||||
{
|
||||
rt_ringbuffer_init(&telnet->tx_ringbuffer, ptr, TX_BUFFER_SIZE);
|
||||
}
|
||||
else
|
||||
{
|
||||
rt_kprintf("telnet: no memory\n");
|
||||
return;
|
||||
}
|
||||
/* create tx ringbuffer lock */
|
||||
telnet->tx_ringbuffer_lock = rt_mutex_create("telnet_tx", RT_IPC_FLAG_FIFO);
|
||||
/* create rx ringbuffer lock */
|
||||
telnet->rx_ringbuffer_lock = rt_mutex_create("telnet_rx", RT_IPC_FLAG_FIFO);
|
||||
|
||||
tid = rt_thread_create("telnet", telnet_thread, RT_NULL, 2048, 25, 5);
|
||||
if (tid != RT_NULL)
|
||||
rt_thread_startup(tid);
|
||||
}
|
||||
else
|
||||
{
|
||||
rt_kprintf("telnet: already running\n");
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
#ifdef RT_USING_FINSH
|
||||
#include <finsh.h>
|
||||
FINSH_FUNCTION_EXPORT(telnet_srv, startup telnet server);
|
||||
#ifdef FINSH_USING_MSH
|
||||
MSH_CMD_EXPORT(telnet_srv, startup telnet server)
|
||||
#endif /* FINSH_USING_MSH */
|
||||
#endif /* RT_USING_FINSH */
|
||||
Loading…
Reference in New Issue