mirror of
https://github.com/lwip-tcpip/lwip.git
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1076 lines
30 KiB
C
1076 lines
30 KiB
C
/*
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* Copyright (c) 2001, 2002 Swedish Institute of Computer Science.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
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* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
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* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
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* OF SUCH DAMAGE.
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*
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* This file is part of the lwIP TCP/IP stack.
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*
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* Author: Adam Dunkels <adam@sics.se>
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*
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*/
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#include <string.h>
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#include <stdio.h>
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#include "lwip/mem.h"
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#include "lwip/debug.h"
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#include "lwip/def.h"
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#include "lwip/api.h"
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#include "lwip/stats.h"
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static unsigned char buffer[1024];
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struct command {
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struct netconn *conn;
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s8_t (* exec)(struct command *);
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u8_t nargs;
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char *args[10];
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};
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/* Following #undefs are here to keep compiler from issuing warnings
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about them being double defined. (They are defined in lwip/inet.h
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as well as the Unix #includes below.) */
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#undef htonl
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#undef ntohl
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#undef htons
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#undef ntohs
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#undef HTONL
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#undef NTOHL
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#undef HTONS
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#undef NTOHS
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#undef IP_HDRINCL
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#include <stdio.h>
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#include <errno.h>
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <netinet/in.h>
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#include <arpa/inet.h>
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#include <stdlib.h>
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#include <limits.h>
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#define ESUCCESS 0
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#define ESYNTAX -1
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#define ETOOFEW -2
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#define ETOOMANY -3
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#define ECLOSED -4
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#define NCONNS 10
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static struct netconn *conns[NCONNS];
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static char help_msg[] = "Avaliable commands:\n\
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open [IP address] [TCP port]: opens a TCP connection to the specified address.\n\
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lstn [TCP port]: sets up a server on the specified port.\n\
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acpt [connection #]: waits for an incoming connection request.\n\
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send [connection #] [message]: sends a message on a TCP connection.\n\
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udpc [local UDP port] [IP address] [remote port]: opens a UDP \"connection\".\n\
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udpl [local UDP port] [IP address] [remote port]: opens a UDP-Lite \"connection\".\n\
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udpn [local UDP port] [IP address] [remote port]: opens a UDP \"connection\" without checksums.\n\
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udpb [local port] [remote port]: opens a UDP broadcast \"connection\".\n\
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usnd [connection #] [message]: sends a message on a UDP connection.\n\
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recv [connection #]: recieves data on a TCP or UDP connection.\n\
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clos [connection #]: closes a TCP or UDP connection.\n\
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stat: prints out lwIP statistics.\n\
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quit: quits.\n";
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static char *stat_msgs[] = {
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"Link level * transmitted ",
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" retransmitted ",
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" * received ",
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" forwarded ",
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" * dropped ",
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" * checksum errors ",
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" * length errors ",
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" * memory errors ",
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" routing errors ",
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" protocol errors ",
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" option errors ",
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" * misc errors ",
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" cache hits ",
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"IP * transmitted ",
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" retransmitted ",
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" * received ",
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" * forwarded ",
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" * dropped ",
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" * checksum errors ",
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" * length errors ",
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" * memory errors ",
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" * routing errors ",
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" * protocol errors ",
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" * option errors ",
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" * misc errors ",
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" cache hits ",
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"ICMP * transmitted ",
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" retransmitted ",
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" * received ",
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" forwarded ",
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" * dropped ",
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" * checksum errors ",
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" length errors ",
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" * memory errors ",
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" routing errors ",
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" * protocol errors ",
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" option errors ",
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" * misc errors ",
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" cache hits ",
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"UDP * transmitted ",
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" retransmitted ",
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" * received ",
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" forwarded ",
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" * dropped ",
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" * checksum errors ",
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" * length errors ",
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" * memory errors ",
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" * routing errors ",
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" * protocol errors ",
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" option errors ",
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" * misc errors ",
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" cache hits ",
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"TCP * transmitted ",
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" * retransmitted ",
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" * received ",
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" forwarded ",
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" * dropped ",
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" * checksum errors ",
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" * length errors ",
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" * memory errors ",
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" * routing errors ",
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" * protocol errors ",
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" * option errors ",
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" * misc errors ",
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" * cache hits ",
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"Pbufs * avaiable ",
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" * used ",
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" * high water mark ",
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" * errors ",
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" reclaimed ",
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" pbuf_alloc() locked ",
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" pbuf_refresh() locked ",
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"Memory * avaliable ",
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" * used ",
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" * high water mark ",
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" * errors ",
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" * reclaimed ",
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"Memp PBUF * avaliable ",
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" * used ",
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" * high water mark ",
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" * errors ",
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" * reclaimed ",
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"UDP PCB * avaliable ",
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" * used ",
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" * high water mark ",
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" * errors ",
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" * reclaimed ",
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"TCP PCB * avaliable ",
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" * used ",
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" * high water mark ",
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" * errors ",
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" * reclaimed ",
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"TCP LISTEN * avaliable ",
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" * used ",
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" * high water mark ",
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" * errors ",
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" * reclaimed ",
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"TCP SEG * avaliable ",
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" * used ",
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" * high water mark ",
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" * errors ",
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" * reclaimed ",
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"Netbufs * avaliable ",
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" * used ",
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" * high water mark ",
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" * errors ",
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" * reclaimed ",
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"Netconns * avaliable ",
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" * used ",
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" * high water mark ",
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" * errors ",
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" * reclaimed ",
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"API msgs * avaliable ",
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" * used ",
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" * high water mark ",
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" * errors ",
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" * reclaimed ",
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"TCPIP msgs * avaliable ",
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" * used ",
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" * high water mark ",
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" * errors ",
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" * reclaimed ",
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"Timeouts * avaliable ",
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" * used ",
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" * high water mark ",
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" * errors ",
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" * reclaimed ",
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"Semaphores * used ",
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" * high water mark ",
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" * errors ",
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"Mailboxes * used ",
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" * high water mark ",
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" * errors "
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};
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/*-----------------------------------------------------------------------------------*/
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static void
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sendstr(const char *str, struct netconn *conn)
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{
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netconn_write(conn, (void *)str, strlen(str), NETCONN_NOCOPY);
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}
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/*-----------------------------------------------------------------------------------*/
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static s8_t
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com_open(struct command *com)
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{
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struct ip_addr ipaddr;
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u16_t port;
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int i;
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err_t err;
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if(inet_aton(com->args[0], (struct in_addr *)&ipaddr) == -1) {
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sendstr(strerror(errno), com->conn);
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return ESYNTAX;
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}
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port = strtol(com->args[1], NULL, 10);
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/* Find the first unused connection in conns. */
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for(i = 0; i < NCONNS && conns[i] != NULL; i++);
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if(i == NCONNS) {
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sendstr("No more connections avaliable, sorry.\n", com->conn);
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return ESUCCESS;
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}
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sendstr("Opening connection to ", com->conn);
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netconn_write(com->conn, com->args[0], strlen(com->args[0]), NETCONN_COPY);
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sendstr(":", com->conn);
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netconn_write(com->conn, com->args[1], strlen(com->args[1]), NETCONN_COPY);
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sendstr("\n", com->conn);
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conns[i] = netconn_new(NETCONN_TCP);
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if(conns[i] == NULL) {
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sendstr("Could not create connection identifier (out of memory).\n", com->conn);
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return ESUCCESS;
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}
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err = netconn_connect(conns[i], &ipaddr, port);
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if(err != ERR_OK) {
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fprintf(stderr, "error %s\n", lwip_strerr(err));
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sendstr("Could not connect to remote host: ", com->conn);
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#ifdef LWIP_DEBUG
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sendstr(lwip_strerr(err), com->conn);
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#else
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sendstr("(debugging must be turned on for error message to appear)", com->conn);
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#endif /* LWIP_DEBUG */
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sendstr("\n", com->conn);
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netconn_delete(conns[i]);
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conns[i] = NULL;
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return ESUCCESS;
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}
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sendstr("Opened connection, connection identifier is ", com->conn);
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sprintf((char *)buffer, "%d\n", i);
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netconn_write(com->conn, buffer, strlen((const char *)buffer), NETCONN_COPY);
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return ESUCCESS;
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}
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/*-----------------------------------------------------------------------------------*/
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static s8_t
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com_lstn(struct command *com)
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{
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u16_t port;
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int i;
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err_t err;
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port = strtol(com->args[0], NULL, 10);
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/* Find the first unused connection in conns. */
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for(i = 0; i < NCONNS && conns[i] != NULL; i++);
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if(i == NCONNS) {
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sendstr("No more connections avaliable, sorry.\n", com->conn);
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return ESUCCESS;
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}
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sendstr("Opening a listening connection on port ", com->conn);
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netconn_write(com->conn, com->args[0], strlen(com->args[0]), NETCONN_COPY);
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sendstr("\n", com->conn);
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conns[i] = netconn_new(NETCONN_TCP);
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if(conns[i] == NULL) {
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sendstr("Could not create connection identifier (out of memory).\n", com->conn);
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return ESUCCESS;
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}
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err = netconn_bind(conns[i], IP_ADDR_ANY, port);
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if(err != ERR_OK) {
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netconn_delete(conns[i]);
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conns[i] = NULL;
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sendstr("Could not bind: ", com->conn);
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#ifdef LWIP_DEBUG
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sendstr(lwip_strerr(err), com->conn);
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#else
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sendstr("(debugging must be turned on for error message to appear)", com->conn);
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#endif /* LWIP_DEBUG */
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sendstr("\n", com->conn);
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return ESUCCESS;
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}
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err = netconn_listen(conns[i]);
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if(err != ERR_OK) {
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netconn_delete(conns[i]);
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conns[i] = NULL;
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sendstr("Could not listen: ", com->conn);
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#ifdef LWIP_DEBUG
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sendstr(lwip_strerr(err), com->conn);
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#else
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sendstr("(debugging must be turned on for error message to appear)", com->conn);
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#endif /* LWIP_DEBUG */
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sendstr("\n", com->conn);
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return ESUCCESS;
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}
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sendstr("Opened connection, connection identifier is ", com->conn);
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sprintf((char *)buffer, "%d\n", i);
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netconn_write(com->conn, buffer, strlen((const char *)buffer), NETCONN_COPY);
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return ESUCCESS;
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}
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/*-----------------------------------------------------------------------------------*/
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/*-----------------------------------------------------------------------------------*/
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static s8_t
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com_clos(struct command *com)
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{
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int i;
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err_t err;
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i = strtol(com->args[0], NULL, 10);
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if(i > NCONNS) {
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sendstr("Connection identifier too high.\n", com->conn);
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return ESUCCESS;
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}
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if(conns[i] == NULL) {
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sendstr("Connection identifier not in use.\n", com->conn);
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return ESUCCESS;
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}
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err = netconn_close(conns[i]);
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if(err != ERR_OK) {
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sendstr("Could not close connection: ", com->conn);
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#ifdef LWIP_DEBUG
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sendstr(lwip_strerr(err), com->conn);
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#else
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sendstr("(debugging must be turned on for error message to appear)", com->conn);
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#endif /* LWIP_DEBUG */
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sendstr("\n", com->conn);
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return ESUCCESS;
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}
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sendstr("Connection closed.\n", com->conn);
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netconn_delete(conns[i]);
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conns[i] = NULL;
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return ESUCCESS;
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}
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/*-----------------------------------------------------------------------------------*/
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static s8_t
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com_acpt(struct command *com)
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{
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int i, j;
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/* Find the first unused connection in conns. */
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for(j = 0; j < NCONNS && conns[j] != NULL; j++);
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if(j == NCONNS) {
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sendstr("No more connections avaliable, sorry.\n", com->conn);
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return ESUCCESS;
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}
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i = strtol(com->args[0], NULL, 10);
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if(i > NCONNS) {
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sendstr("Connection identifier too high.\n", com->conn);
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return ESUCCESS;
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}
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if(conns[i] == NULL) {
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sendstr("Connection identifier not in use.\n", com->conn);
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return ESUCCESS;
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}
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conns[j] = netconn_accept(conns[i]);
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if(conns[j] == NULL) {
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sendstr("Could not accept connection: ", com->conn);
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#ifdef LWIP_DEBUG
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sendstr(lwip_strerr(netconn_err(conns[i])), com->conn);
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#else
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sendstr("(debugging must be turned on for error message to appear)", com->conn);
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#endif /* LWIP_DEBUG */
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sendstr("\n", com->conn);
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return ESUCCESS;
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}
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sendstr("Accepted connection, connection identifier for new connection is ", com->conn);
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sprintf((char *)buffer, "%d\n", j);
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netconn_write(com->conn, buffer, strlen((const char *)buffer), NETCONN_COPY);
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return ESUCCESS;
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}
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/*-----------------------------------------------------------------------------------*/
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static s8_t
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com_stat(struct command *com)
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{
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int i;
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char buf[100];
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u16_t len;
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for(i = 0; i < sizeof(struct stats_) / 2; i++) {
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len = sprintf(buf, "%d", ((u16_t *)&stats)[i]);
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sendstr(stat_msgs[i], com->conn);
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netconn_write(com->conn, buf, len, NETCONN_COPY);
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sendstr("\n", com->conn);
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}
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return ESUCCESS;
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}
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/*-----------------------------------------------------------------------------------*/
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static s8_t
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com_send(struct command *com)
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{
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int i;
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err_t err;
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int len;
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i = strtol(com->args[0], NULL, 10);
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if(i > NCONNS) {
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sendstr("Connection identifier too high.\n", com->conn);
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return ESUCCESS;
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}
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if(conns[i] == NULL) {
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sendstr("Connection identifier not in use.\n", com->conn);
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return ESUCCESS;
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}
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len = strlen(com->args[1]);
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com->args[1][len] = '\r';
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com->args[1][len + 1] = '\n';
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com->args[1][len + 2] = 0;
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err = netconn_write(conns[i], com->args[1], len + 3, NETCONN_COPY);
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if(err != ERR_OK) {
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sendstr("Could not send data: ", com->conn);
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#ifdef LWIP_DEBUG
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sendstr(lwip_strerr(err), com->conn);
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#else
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sendstr("(debugging must be turned on for error message to appear)", com->conn);
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#endif /* LWIP_DEBUG */
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sendstr("\n", com->conn);
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return ESUCCESS;
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}
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sendstr("Data enqueued for sending.\n", com->conn);
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return ESUCCESS;
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}
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|
/*-----------------------------------------------------------------------------------*/
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static s8_t
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com_recv(struct command *com)
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{
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int i;
|
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err_t err;
|
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struct netbuf *buf;
|
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u16_t len;
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i = strtol(com->args[0], NULL, 10);
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if(i > NCONNS) {
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sendstr("Connection identifier too high.\n", com->conn);
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return ESUCCESS;
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}
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if(conns[i] == NULL) {
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sendstr("Connection identifier not in use.\n", com->conn);
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return ESUCCESS;
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}
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buf = netconn_recv(conns[i]);
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if(buf != NULL) {
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netbuf_copy(buf, buffer, 1024);
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len = netbuf_len(buf);
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sendstr("Reading from connection:\n", com->conn);
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netconn_write(com->conn, buffer, len, NETCONN_COPY);
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netbuf_delete(buf);
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} else {
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sendstr("EOF.\n", com->conn);
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}
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err = netconn_err(conns[i]);
|
|
if(err != ERR_OK) {
|
|
sendstr("Could not receive data: ", com->conn);
|
|
#ifdef LWIP_DEBUG
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sendstr(lwip_strerr(err), com->conn);
|
|
#else
|
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sendstr("(debugging must be turned on for error message to appear)", com->conn);
|
|
#endif /* LWIP_DEBUG */
|
|
sendstr("\n", com->conn);
|
|
return ESUCCESS;
|
|
}
|
|
return ESUCCESS;
|
|
}
|
|
/*-----------------------------------------------------------------------------------*/
|
|
static s8_t
|
|
com_udpc(struct command *com)
|
|
{
|
|
struct ip_addr ipaddr;
|
|
u16_t lport, rport;
|
|
int i;
|
|
err_t err;
|
|
|
|
lport = strtol(com->args[0], NULL, 10);
|
|
if(inet_aton(com->args[1], (struct in_addr *)&ipaddr) == -1) {
|
|
sendstr(strerror(errno), com->conn);
|
|
return ESYNTAX;
|
|
}
|
|
rport = strtol(com->args[2], NULL, 10);
|
|
|
|
/* Find the first unused connection in conns. */
|
|
for(i = 0; i < NCONNS && conns[i] != NULL; i++);
|
|
|
|
if(i == NCONNS) {
|
|
sendstr("No more connections avaliable, sorry.\n", com->conn);
|
|
return ESUCCESS;
|
|
}
|
|
|
|
sendstr("Setting up UDP connection from port ", com->conn);
|
|
netconn_write(com->conn, com->args[0], strlen(com->args[0]), NETCONN_COPY);
|
|
sendstr(" to ", com->conn);
|
|
netconn_write(com->conn, com->args[1], strlen(com->args[1]), NETCONN_COPY);
|
|
sendstr(":", com->conn);
|
|
netconn_write(com->conn, com->args[2], strlen(com->args[2]), NETCONN_COPY);
|
|
sendstr("\n", com->conn);
|
|
|
|
conns[i] = netconn_new(NETCONN_UDP);
|
|
if(conns[i] == NULL) {
|
|
sendstr("Could not create connection identifier (out of memory).\n", com->conn);
|
|
return ESUCCESS;
|
|
}
|
|
|
|
err = netconn_connect(conns[i], &ipaddr, rport);
|
|
if(err != ERR_OK) {
|
|
netconn_delete(conns[i]);
|
|
conns[i] = NULL;
|
|
sendstr("Could not connect to remote host: ", com->conn);
|
|
#ifdef LWIP_DEBUG
|
|
sendstr(lwip_strerr(err), com->conn);
|
|
#else
|
|
sendstr("(debugging must be turned on for error message to appear)", com->conn);
|
|
#endif /* LWIP_DEBUG */
|
|
sendstr("\n", com->conn);
|
|
return ESUCCESS;
|
|
}
|
|
|
|
err = netconn_bind(conns[i], IP_ADDR_ANY, lport);
|
|
if(err != ERR_OK) {
|
|
netconn_delete(conns[i]);
|
|
conns[i] = NULL;
|
|
sendstr("Could not bind: ", com->conn);
|
|
#ifdef LWIP_DEBUG
|
|
sendstr(lwip_strerr(err), com->conn);
|
|
#else
|
|
sendstr("(debugging must be turned on for error message to appear)", com->conn);
|
|
#endif /* LWIP_DEBUG */
|
|
sendstr("\n", com->conn);
|
|
return ESUCCESS;
|
|
}
|
|
|
|
sendstr("Connection set up, connection identifier is ", com->conn);
|
|
sprintf((char *)buffer, "%d\n", i);
|
|
netconn_write(com->conn, buffer, strlen((const char *)buffer), NETCONN_COPY);
|
|
|
|
return ESUCCESS;
|
|
}
|
|
/*-----------------------------------------------------------------------------------*/
|
|
static s8_t
|
|
com_udpl(struct command *com)
|
|
{
|
|
struct ip_addr ipaddr;
|
|
u16_t lport, rport;
|
|
int i;
|
|
err_t err;
|
|
|
|
lport = strtol(com->args[0], NULL, 10);
|
|
if(inet_aton(com->args[1], (struct in_addr *)&ipaddr) == -1) {
|
|
sendstr(strerror(errno), com->conn);
|
|
return ESYNTAX;
|
|
}
|
|
rport = strtol(com->args[2], NULL, 10);
|
|
|
|
/* Find the first unused connection in conns. */
|
|
for(i = 0; i < NCONNS && conns[i] != NULL; i++);
|
|
|
|
if(i == NCONNS) {
|
|
sendstr("No more connections avaliable, sorry.\n", com->conn);
|
|
return ESUCCESS;
|
|
}
|
|
|
|
sendstr("Setting up UDP-Lite connection from port ", com->conn);
|
|
netconn_write(com->conn, com->args[0], strlen(com->args[0]), NETCONN_COPY);
|
|
sendstr(" to ", com->conn);
|
|
netconn_write(com->conn, com->args[1], strlen(com->args[1]), NETCONN_COPY);
|
|
sendstr(":", com->conn);
|
|
netconn_write(com->conn, com->args[2], strlen(com->args[2]), NETCONN_COPY);
|
|
sendstr("\n", com->conn);
|
|
|
|
conns[i] = netconn_new(NETCONN_UDPLITE);
|
|
if(conns[i] == NULL) {
|
|
sendstr("Could not create connection identifier (out of memory).\n", com->conn);
|
|
return ESUCCESS;
|
|
}
|
|
|
|
err = netconn_connect(conns[i], &ipaddr, rport);
|
|
if(err != ERR_OK) {
|
|
netconn_delete(conns[i]);
|
|
conns[i] = NULL;
|
|
sendstr("Could not connect to remote host: ", com->conn);
|
|
#ifdef LWIP_DEBUG
|
|
sendstr(lwip_strerr(err), com->conn);
|
|
#else
|
|
sendstr("(debugging must be turned on for error message to appear)", com->conn);
|
|
#endif /* LWIP_DEBUG */
|
|
sendstr("\n", com->conn);
|
|
return ESUCCESS;
|
|
}
|
|
|
|
err = netconn_bind(conns[i], IP_ADDR_ANY, lport);
|
|
if(err != ERR_OK) {
|
|
netconn_delete(conns[i]);
|
|
conns[i] = NULL;
|
|
sendstr("Could not bind: ", com->conn);
|
|
#ifdef LWIP_DEBUG
|
|
sendstr(lwip_strerr(err), com->conn);
|
|
#else
|
|
sendstr("(debugging must be turned on for error message to appear)", com->conn);
|
|
#endif /* LWIP_DEBUG */
|
|
sendstr("\n", com->conn);
|
|
return ESUCCESS;
|
|
}
|
|
|
|
sendstr("Connection set up, connection identifier is ", com->conn);
|
|
sprintf((char *)buffer, "%d\n", i);
|
|
netconn_write(com->conn, buffer, strlen((const char *)buffer), NETCONN_COPY);
|
|
|
|
return ESUCCESS;
|
|
}
|
|
/*-----------------------------------------------------------------------------------*/
|
|
static s8_t
|
|
com_udpn(struct command *com)
|
|
{
|
|
struct ip_addr ipaddr;
|
|
u16_t lport, rport;
|
|
int i;
|
|
err_t err;
|
|
|
|
lport = strtol(com->args[0], NULL, 10);
|
|
if(inet_aton(com->args[1], (struct in_addr *)&ipaddr) == -1) {
|
|
sendstr(strerror(errno), com->conn);
|
|
return ESYNTAX;
|
|
}
|
|
rport = strtol(com->args[2], NULL, 10);
|
|
|
|
/* Find the first unused connection in conns. */
|
|
for(i = 0; i < NCONNS && conns[i] != NULL; i++);
|
|
|
|
if(i == NCONNS) {
|
|
sendstr("No more connections avaliable, sorry.\n", com->conn);
|
|
return ESUCCESS;
|
|
}
|
|
|
|
sendstr("Setting up UDP connection without checksums from port ", com->conn);
|
|
netconn_write(com->conn, com->args[0], strlen(com->args[0]), NETCONN_COPY);
|
|
sendstr(" to ", com->conn);
|
|
netconn_write(com->conn, com->args[1], strlen(com->args[1]), NETCONN_COPY);
|
|
sendstr(":", com->conn);
|
|
netconn_write(com->conn, com->args[2], strlen(com->args[2]), NETCONN_COPY);
|
|
sendstr("\n", com->conn);
|
|
|
|
conns[i] = netconn_new(NETCONN_UDPNOCHKSUM);
|
|
if(conns[i] == NULL) {
|
|
sendstr("Could not create connection identifier (out of memory).\n", com->conn);
|
|
return ESUCCESS;
|
|
}
|
|
|
|
err = netconn_connect(conns[i], &ipaddr, rport);
|
|
if(err != ERR_OK) {
|
|
netconn_delete(conns[i]);
|
|
conns[i] = NULL;
|
|
sendstr("Could not connect to remote host: ", com->conn);
|
|
#ifdef LWIP_DEBUG
|
|
sendstr(lwip_strerr(err), com->conn);
|
|
#else
|
|
sendstr("(debugging must be turned on for error message to appear)", com->conn);
|
|
#endif /* LWIP_DEBUG */
|
|
sendstr("\n", com->conn);
|
|
return ESUCCESS;
|
|
}
|
|
|
|
err = netconn_bind(conns[i], IP_ADDR_ANY, lport);
|
|
if(err != ERR_OK) {
|
|
netconn_delete(conns[i]);
|
|
conns[i] = NULL;
|
|
sendstr("Could not bind: ", com->conn);
|
|
#ifdef LWIP_DEBUG
|
|
sendstr(lwip_strerr(err), com->conn);
|
|
#else
|
|
sendstr("(debugging must be turned on for error message to appear)", com->conn);
|
|
#endif /* LWIP_DEBUG */
|
|
sendstr("\n", com->conn);
|
|
return ESUCCESS;
|
|
}
|
|
|
|
sendstr("Connection set up, connection identifier is ", com->conn);
|
|
sprintf((char *)buffer, "%d\n", i);
|
|
netconn_write(com->conn, buffer, strlen((const char *)buffer), NETCONN_COPY);
|
|
|
|
return ESUCCESS;
|
|
}
|
|
/*-----------------------------------------------------------------------------------*/
|
|
static s8_t
|
|
com_udpb(struct command *com)
|
|
{
|
|
struct ip_addr ipaddr;
|
|
u16_t lport, rport;
|
|
int i;
|
|
err_t err;
|
|
struct ip_addr bcaddr;
|
|
|
|
lport = strtol(com->args[0], NULL, 10);
|
|
if(inet_aton(com->args[1], (struct in_addr *)&ipaddr) == -1) {
|
|
sendstr(strerror(errno), com->conn);
|
|
return ESYNTAX;
|
|
}
|
|
rport = strtol(com->args[2], NULL, 10);
|
|
|
|
/* Find the first unused connection in conns. */
|
|
for(i = 0; i < NCONNS && conns[i] != NULL; i++);
|
|
|
|
if(i == NCONNS) {
|
|
sendstr("No more connections avaliable, sorry.\n", com->conn);
|
|
return ESUCCESS;
|
|
}
|
|
|
|
sendstr("Setting up UDP broadcast connection from port ", com->conn);
|
|
netconn_write(com->conn, com->args[0], strlen(com->args[0]), NETCONN_COPY);
|
|
sendstr(" to ", com->conn);
|
|
netconn_write(com->conn, com->args[1], strlen(com->args[1]), NETCONN_COPY);
|
|
sendstr("\n", com->conn);
|
|
|
|
conns[i] = netconn_new(NETCONN_UDP);
|
|
if(conns[i] == NULL) {
|
|
sendstr("Could not create connection identifier (out of memory).\n", com->conn);
|
|
return ESUCCESS;
|
|
}
|
|
|
|
err = netconn_connect(conns[i], &ipaddr, rport);
|
|
if(err != ERR_OK) {
|
|
netconn_delete(conns[i]);
|
|
conns[i] = NULL;
|
|
sendstr("Could not connect to remote host: ", com->conn);
|
|
#ifdef LWIP_DEBUG
|
|
sendstr(lwip_strerr(err), com->conn);
|
|
#else
|
|
sendstr("(debugging must be turned on for error message to appear)", com->conn);
|
|
#endif /* LWIP_DEBUG */
|
|
sendstr("\n", com->conn);
|
|
return ESUCCESS;
|
|
}
|
|
|
|
IP4_ADDR(&bcaddr, 255,255,255,255);
|
|
err = netconn_bind(conns[i], &bcaddr, lport);
|
|
if(err != ERR_OK) {
|
|
netconn_delete(conns[i]);
|
|
conns[i] = NULL;
|
|
sendstr("Could not bind: ", com->conn);
|
|
#ifdef LWIP_DEBUG
|
|
sendstr(lwip_strerr(err), com->conn);
|
|
#else
|
|
sendstr("(debugging must be turned on for error message to appear)", com->conn);
|
|
#endif /* LWIP_DEBUG */
|
|
sendstr("\n", com->conn);
|
|
return ESUCCESS;
|
|
}
|
|
|
|
sendstr("Connection set up, connection identifier is ", com->conn);
|
|
sprintf((char *)buffer, "%d\n", i);
|
|
netconn_write(com->conn, buffer, strlen((const char *)buffer), NETCONN_COPY);
|
|
|
|
return ESUCCESS;
|
|
}
|
|
/*-----------------------------------------------------------------------------------*/
|
|
static s8_t
|
|
com_usnd(struct command *com)
|
|
{
|
|
int i;
|
|
err_t err;
|
|
struct netbuf *buf;
|
|
char *mem;
|
|
|
|
i = strtol(com->args[0], NULL, 10);
|
|
|
|
if(i > NCONNS) {
|
|
sendstr("Connection identifier too high.\n", com->conn);
|
|
return ESUCCESS;
|
|
}
|
|
|
|
if(conns[i] == NULL) {
|
|
sendstr("Connection identifier not in use.\n", com->conn);
|
|
return ESUCCESS;
|
|
}
|
|
|
|
buf = netbuf_new();
|
|
mem = netbuf_alloc(buf, strlen(com->args[1]) + 1);
|
|
if(mem == NULL) {
|
|
sendstr("Could not allocate memory for sending.\n", com->conn);
|
|
return ESUCCESS;
|
|
}
|
|
strncpy(mem, com->args[1], strlen(com->args[1]) + 1);
|
|
err = netconn_send(conns[i], buf);
|
|
netbuf_delete(buf);
|
|
if(err != ERR_OK) {
|
|
sendstr("Could not send data: ", com->conn);
|
|
#ifdef LWIP_DEBUG
|
|
sendstr(lwip_strerr(err), com->conn);
|
|
#else
|
|
sendstr("(debugging must be turned on for error message to appear)", com->conn);
|
|
#endif /* LWIP_DEBUG */
|
|
sendstr("\n", com->conn);
|
|
return ESUCCESS;
|
|
}
|
|
|
|
sendstr("Data sent.\n", com->conn);
|
|
return ESUCCESS;
|
|
}
|
|
/*-----------------------------------------------------------------------------------*/
|
|
static s8_t
|
|
com_help(struct command *com)
|
|
{
|
|
sendstr(help_msg, com->conn);
|
|
return ESUCCESS;
|
|
}
|
|
/*-----------------------------------------------------------------------------------*/
|
|
static s8_t
|
|
parse_command(struct command *com, u32_t len)
|
|
{
|
|
u16_t i;
|
|
u16_t bufp;
|
|
|
|
if(strncmp((const char *)buffer, "open", 4) == 0) {
|
|
com->exec = com_open;
|
|
com->nargs = 2;
|
|
} else if(strncmp((const char *)buffer, "lstn", 4) == 0) {
|
|
com->exec = com_lstn;
|
|
com->nargs = 1;
|
|
} else if(strncmp((const char *)buffer, "acpt", 4) == 0) {
|
|
com->exec = com_acpt;
|
|
com->nargs = 1;
|
|
} else if(strncmp((const char *)buffer, "clos", 4) == 0) {
|
|
com->exec = com_clos;
|
|
com->nargs = 1;
|
|
} else if(strncmp((const char *)buffer, "stat", 4) == 0) {
|
|
com->exec = com_stat;
|
|
com->nargs = 0;
|
|
} else if(strncmp((const char *)buffer, "send", 4) == 0) {
|
|
com->exec = com_send;
|
|
com->nargs = 2;
|
|
} else if(strncmp((const char *)buffer, "recv", 4) == 0) {
|
|
com->exec = com_recv;
|
|
com->nargs = 1;
|
|
} else if(strncmp((const char *)buffer, "udpc", 4) == 0) {
|
|
com->exec = com_udpc;
|
|
com->nargs = 3;
|
|
} else if(strncmp((const char *)buffer, "udpb", 4) == 0) {
|
|
com->exec = com_udpb;
|
|
com->nargs = 2;
|
|
} else if(strncmp((const char *)buffer, "udpl", 4) == 0) {
|
|
com->exec = com_udpl;
|
|
com->nargs = 3;
|
|
} else if(strncmp((const char *)buffer, "udpn", 4) == 0) {
|
|
com->exec = com_udpn;
|
|
com->nargs = 3;
|
|
} else if(strncmp((const char *)buffer, "usnd", 4) == 0) {
|
|
com->exec = com_usnd;
|
|
com->nargs = 2;
|
|
} else if(strncmp((const char *)buffer, "help", 4) == 0) {
|
|
com->exec = com_help;
|
|
com->nargs = 0;
|
|
} else if(strncmp((const char *)buffer, "quit", 4) == 0) {
|
|
printf("quit\n");
|
|
return ECLOSED;
|
|
} else {
|
|
return ESYNTAX;
|
|
}
|
|
|
|
if(com->nargs == 0) {
|
|
return ESUCCESS;
|
|
}
|
|
bufp = 0;
|
|
for(; bufp < len && buffer[bufp] != ' '; bufp++);
|
|
for(i = 0; i < 10; i++) {
|
|
for(; bufp < len && buffer[bufp] == ' '; bufp++);
|
|
if(buffer[bufp] == '\r' ||
|
|
buffer[bufp] == '\n') {
|
|
buffer[bufp] = 0;
|
|
if(i < com->nargs - 1) {
|
|
return ETOOFEW;
|
|
}
|
|
if(i > com->nargs - 1) {
|
|
return ETOOMANY;
|
|
}
|
|
break;
|
|
}
|
|
if(bufp > len) {
|
|
return ETOOFEW;
|
|
}
|
|
com->args[i] = (char *)&buffer[bufp];
|
|
for(; bufp < len && buffer[bufp] != ' ' && buffer[bufp] != '\r' &&
|
|
buffer[bufp] != '\n'; bufp++) {
|
|
if(buffer[bufp] == '\\') {
|
|
buffer[bufp] = ' ';
|
|
}
|
|
}
|
|
if(bufp > len) {
|
|
return ESYNTAX;
|
|
}
|
|
buffer[bufp] = 0;
|
|
bufp++;
|
|
if(i == com->nargs - 1) {
|
|
break;
|
|
}
|
|
|
|
}
|
|
|
|
return ESUCCESS;
|
|
}
|
|
/*-----------------------------------------------------------------------------------*/
|
|
static void
|
|
error(s8_t err, struct netconn *conn)
|
|
{
|
|
switch(err) {
|
|
case ESYNTAX:
|
|
sendstr("## Syntax error\n", conn);
|
|
break;
|
|
case ETOOFEW:
|
|
sendstr("## Too few arguments to command given\n", conn);
|
|
break;
|
|
case ETOOMANY:
|
|
sendstr("## Too many arguments to command given\n", conn);
|
|
break;
|
|
}
|
|
}
|
|
/*-----------------------------------------------------------------------------------*/
|
|
static void
|
|
prompt(struct netconn *conn)
|
|
{
|
|
sendstr("> ", conn);
|
|
}
|
|
/*-----------------------------------------------------------------------------------*/
|
|
static void
|
|
shell_main(struct netconn *conn)
|
|
{
|
|
struct netbuf *buf;
|
|
u32_t len;
|
|
struct command com;
|
|
s8_t err;
|
|
int i;
|
|
|
|
do {
|
|
buf = netconn_recv(conn);
|
|
if(buf != NULL) {
|
|
netbuf_copy(buf, buffer, 1024);
|
|
len = netbuf_len(buf);
|
|
netbuf_delete(buf);
|
|
if(len >= 4) {
|
|
if(buffer[0] != 0xff &&
|
|
buffer[1] != 0xfe) {
|
|
err = parse_command(&com, len);
|
|
if(err == ESUCCESS) {
|
|
com.conn = conn;
|
|
err = com.exec(&com);
|
|
}
|
|
if(err != ESUCCESS) {
|
|
error(err, conn);
|
|
}
|
|
if(err == ECLOSED) {
|
|
printf("Closed\n");
|
|
error(err, conn);
|
|
goto close;
|
|
}
|
|
} else {
|
|
sendstr("\n\n"
|
|
"lwIP simple interactive shell.\n"
|
|
"(c) Copyright 2001, Swedish Institute of Computer Science.\n"
|
|
"Written by Adam Dunkels.\n"
|
|
"For help, try the \"help\" command.\n", conn);
|
|
}
|
|
}
|
|
}
|
|
if(buf != NULL) {
|
|
prompt(conn);
|
|
}
|
|
} while(buf != NULL);
|
|
printf("buf == NULL err %s\n", lwip_strerr(conn->err));
|
|
close:
|
|
netconn_close(conn);
|
|
|
|
for(i = 0; i < NCONNS; i++) {
|
|
if(conns[i] != NULL) {
|
|
netconn_delete(conns[i]);
|
|
}
|
|
conns[i] = NULL;
|
|
}
|
|
|
|
}
|
|
/*-----------------------------------------------------------------------------------*/
|
|
static void
|
|
shell_thread(void *arg)
|
|
{
|
|
struct netconn *conn, *newconn;
|
|
|
|
conn = netconn_new(NETCONN_TCP);
|
|
netconn_bind(conn, NULL, 23);
|
|
netconn_listen(conn);
|
|
|
|
while(1) {
|
|
newconn = netconn_accept(conn);
|
|
shell_main(newconn);
|
|
netconn_delete(newconn);
|
|
}
|
|
}
|
|
/*-----------------------------------------------------------------------------------*/
|
|
void
|
|
shell_init(void)
|
|
{
|
|
sys_thread_new(shell_thread, NULL);
|
|
}
|
|
|
|
|
|
|
|
|