Added a 'netstat' command that (currently) shows active TCP connections
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adamdunkels
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2 changed files with 191 additions and 0 deletions
143
apps/shell/shell-netstat.c
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143
apps/shell/shell-netstat.c
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/*
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* Copyright (c) 2004, Adam Dunkels.
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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
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the Institute nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* This file is part of the Contiki operating system.
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*
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* Author: Adam Dunkels <adam@sics.se>
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*
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* $Id: shell-netstat.c,v 1.1 2009/05/10 21:02:24 adamdunkels Exp $
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*/
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#include <string.h>
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#include <stddef.h>
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#include <stdio.h>
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#include "contiki.h"
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#include "shell.h"
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#include "contiki-net.h"
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static const char closed[] = /* "CLOSED",*/
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{0x43, 0x4c, 0x4f, 0x53, 0x45, 0x44, 0};
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static const char syn_rcvd[] = /* "SYN-RCVD",*/
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{0x53, 0x59, 0x4e, 0x2d, 0x52, 0x43, 0x56,
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0x44, 0};
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static const char syn_sent[] = /* "SYN-SENT",*/
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{0x53, 0x59, 0x4e, 0x2d, 0x53, 0x45, 0x4e,
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0x54, 0};
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static const char established[] = /* "ESTABLISHED",*/
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{0x45, 0x53, 0x54, 0x41, 0x42, 0x4c, 0x49,
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0x53, 0x48, 0x45, 0x44, 0};
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static const char fin_wait_1[] = /* "FIN-WAIT-1",*/
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{0x46, 0x49, 0x4e, 0x2d, 0x57, 0x41, 0x49,
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0x54, 0x2d, 0x31, 0};
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static const char fin_wait_2[] = /* "FIN-WAIT-2",*/
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{0x46, 0x49, 0x4e, 0x2d, 0x57, 0x41, 0x49,
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0x54, 0x2d, 0x32, 0};
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static const char closing[] = /* "CLOSING",*/
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{0x43, 0x4c, 0x4f, 0x53, 0x49,
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0x4e, 0x47, 0};
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static const char time_wait[] = /* "TIME-WAIT,"*/
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{0x54, 0x49, 0x4d, 0x45, 0x2d, 0x57, 0x41,
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0x49, 0x54, 0};
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static const char last_ack[] = /* "LAST-ACK"*/
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{0x4c, 0x41, 0x53, 0x54, 0x2d, 0x41, 0x43,
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0x4b, 0};
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static const char none[] = /* "NONE"*/
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{0x4e, 0x4f, 0x4e, 0x45, 0};
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static const char running[] = /* "RUNNING"*/
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{0x52, 0x55, 0x4e, 0x4e, 0x49, 0x4e, 0x47,
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0};
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static const char called[] = /* "CALLED"*/
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{0x43, 0x41, 0x4c, 0x4c, 0x45, 0x44, 0};
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static const char file_name[] = /* "file-stats"*/
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{0x66, 0x69, 0x6c, 0x65, 0x2d, 0x73, 0x74,
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0x61, 0x74, 0x73, 0};
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static const char tcp_name[] = /* "tcp-connections"*/
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{0x74, 0x63, 0x70, 0x2d, 0x63, 0x6f, 0x6e,
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0x6e, 0x65, 0x63, 0x74, 0x69, 0x6f, 0x6e,
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0x73, 0};
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static const char proc_name[] = /* "processes"*/
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{0x70, 0x72, 0x6f, 0x63, 0x65, 0x73, 0x73,
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0x65, 0x73, 0};
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static const char *states[] = {
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closed,
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syn_rcvd,
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syn_sent,
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established,
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fin_wait_1,
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fin_wait_2,
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closing,
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time_wait,
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last_ack,
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none,
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running,
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called};
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#define BUFLEN 100
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/*---------------------------------------------------------------------------*/
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PROCESS(shell_netstat_process, "netstat");
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SHELL_COMMAND(netstat_command,
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"netstat",
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"netstat: show UDP and TCP connections",
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&shell_netstat_process);
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/*---------------------------------------------------------------------------*/
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PROCESS_THREAD(shell_netstat_process, ev, data)
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{
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char buf[BUFLEN];
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int i;
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struct uip_conn *conn;
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PROCESS_BEGIN();
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for(i = 0; i < UIP_CONNS; ++i) {
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conn = &uip_conns[i];
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snprintf(buf, BUFLEN,
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"%d, %u.%u.%u.%u:%u, %s, %u, %u, %c %c",
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htons(conn->lport),
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conn->ripaddr.u8[0],
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conn->ripaddr.u8[1],
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conn->ripaddr.u8[2],
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conn->ripaddr.u8[3],
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htons(conn->rport),
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states[conn->tcpstateflags & UIP_TS_MASK],
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conn->nrtx,
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conn->timer,
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(uip_outstanding(conn))? '*':' ',
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(uip_stopped(conn))? '!':' ');
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shell_output_str(&netstat_command, "TCP ", buf);
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}
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PROCESS_END();
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}
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/*---------------------------------------------------------------------------*/
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void
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shell_netstat_init(void)
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{
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shell_register_command(&netstat_command);
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}
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/*---------------------------------------------------------------------------*/
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48
apps/shell/shell-netstat.h
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48
apps/shell/shell-netstat.h
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@ -0,0 +1,48 @@
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/*
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* Copyright (c) 2008, 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
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the Institute nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* This file is part of the Contiki operating system.
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*
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* $Id: shell-netstat.h,v 1.1 2009/05/10 21:02:24 adamdunkels Exp $
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*/
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/**
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* \file
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* Header file for Contik shell command netstat
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* \author
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* Adam Dunkels <adam@sics.se>
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*/
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#ifndef __SHELL_NETSTAT_H__
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#define __SHELL_NETSTAT_H__
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#include "shell.h"
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void shell_netstat_init(void);
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#endif /* __SHELL_NETSTAT_H__ */
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