From 8458a4fe283ec19007e85915e2985f2a6f9e803e Mon Sep 17 00:00:00 2001 From: adamdunkels Date: Sun, 10 May 2009 21:02:24 +0000 Subject: [PATCH] Added a 'netstat' command that (currently) shows active TCP connections --- apps/shell/shell-netstat.c | 143 +++++++++++++++++++++++++++++++++++++ apps/shell/shell-netstat.h | 48 +++++++++++++ 2 files changed, 191 insertions(+) create mode 100644 apps/shell/shell-netstat.c create mode 100644 apps/shell/shell-netstat.h diff --git a/apps/shell/shell-netstat.c b/apps/shell/shell-netstat.c new file mode 100644 index 000000000..1fbb715cb --- /dev/null +++ b/apps/shell/shell-netstat.c @@ -0,0 +1,143 @@ +/* + * Copyright (c) 2004, Adam Dunkels. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the Institute nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * This file is part of the Contiki operating system. + * + * Author: Adam Dunkels + * + * $Id: shell-netstat.c,v 1.1 2009/05/10 21:02:24 adamdunkels Exp $ + */ + +#include +#include +#include + +#include "contiki.h" +#include "shell.h" +#include "contiki-net.h" + +static const char closed[] = /* "CLOSED",*/ +{0x43, 0x4c, 0x4f, 0x53, 0x45, 0x44, 0}; +static const char syn_rcvd[] = /* "SYN-RCVD",*/ +{0x53, 0x59, 0x4e, 0x2d, 0x52, 0x43, 0x56, + 0x44, 0}; +static const char syn_sent[] = /* "SYN-SENT",*/ +{0x53, 0x59, 0x4e, 0x2d, 0x53, 0x45, 0x4e, + 0x54, 0}; +static const char established[] = /* "ESTABLISHED",*/ +{0x45, 0x53, 0x54, 0x41, 0x42, 0x4c, 0x49, + 0x53, 0x48, 0x45, 0x44, 0}; +static const char fin_wait_1[] = /* "FIN-WAIT-1",*/ +{0x46, 0x49, 0x4e, 0x2d, 0x57, 0x41, 0x49, + 0x54, 0x2d, 0x31, 0}; +static const char fin_wait_2[] = /* "FIN-WAIT-2",*/ +{0x46, 0x49, 0x4e, 0x2d, 0x57, 0x41, 0x49, + 0x54, 0x2d, 0x32, 0}; +static const char closing[] = /* "CLOSING",*/ +{0x43, 0x4c, 0x4f, 0x53, 0x49, + 0x4e, 0x47, 0}; +static const char time_wait[] = /* "TIME-WAIT,"*/ +{0x54, 0x49, 0x4d, 0x45, 0x2d, 0x57, 0x41, + 0x49, 0x54, 0}; +static const char last_ack[] = /* "LAST-ACK"*/ +{0x4c, 0x41, 0x53, 0x54, 0x2d, 0x41, 0x43, + 0x4b, 0}; +static const char none[] = /* "NONE"*/ +{0x4e, 0x4f, 0x4e, 0x45, 0}; +static const char running[] = /* "RUNNING"*/ +{0x52, 0x55, 0x4e, 0x4e, 0x49, 0x4e, 0x47, + 0}; +static const char called[] = /* "CALLED"*/ +{0x43, 0x41, 0x4c, 0x4c, 0x45, 0x44, 0}; +static const char file_name[] = /* "file-stats"*/ +{0x66, 0x69, 0x6c, 0x65, 0x2d, 0x73, 0x74, + 0x61, 0x74, 0x73, 0}; +static const char tcp_name[] = /* "tcp-connections"*/ +{0x74, 0x63, 0x70, 0x2d, 0x63, 0x6f, 0x6e, + 0x6e, 0x65, 0x63, 0x74, 0x69, 0x6f, 0x6e, + 0x73, 0}; +static const char proc_name[] = /* "processes"*/ +{0x70, 0x72, 0x6f, 0x63, 0x65, 0x73, 0x73, + 0x65, 0x73, 0}; + +static const char *states[] = { + closed, + syn_rcvd, + syn_sent, + established, + fin_wait_1, + fin_wait_2, + closing, + time_wait, + last_ack, + none, + running, + called}; + +#define BUFLEN 100 + +/*---------------------------------------------------------------------------*/ +PROCESS(shell_netstat_process, "netstat"); +SHELL_COMMAND(netstat_command, + "netstat", + "netstat: show UDP and TCP connections", + &shell_netstat_process); +/*---------------------------------------------------------------------------*/ +PROCESS_THREAD(shell_netstat_process, ev, data) +{ + char buf[BUFLEN]; + int i; + struct uip_conn *conn; + PROCESS_BEGIN(); + + for(i = 0; i < UIP_CONNS; ++i) { + conn = &uip_conns[i]; + snprintf(buf, BUFLEN, + "%d, %u.%u.%u.%u:%u, %s, %u, %u, %c %c", + htons(conn->lport), + conn->ripaddr.u8[0], + conn->ripaddr.u8[1], + conn->ripaddr.u8[2], + conn->ripaddr.u8[3], + htons(conn->rport), + states[conn->tcpstateflags & UIP_TS_MASK], + conn->nrtx, + conn->timer, + (uip_outstanding(conn))? '*':' ', + (uip_stopped(conn))? '!':' '); + shell_output_str(&netstat_command, "TCP ", buf); + } + PROCESS_END(); +} +/*---------------------------------------------------------------------------*/ +void +shell_netstat_init(void) +{ + shell_register_command(&netstat_command); +} +/*---------------------------------------------------------------------------*/ diff --git a/apps/shell/shell-netstat.h b/apps/shell/shell-netstat.h new file mode 100644 index 000000000..2bc5ecafe --- /dev/null +++ b/apps/shell/shell-netstat.h @@ -0,0 +1,48 @@ +/* + * Copyright (c) 2008, Swedish Institute of Computer Science. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the Institute nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * This file is part of the Contiki operating system. + * + * $Id: shell-netstat.h,v 1.1 2009/05/10 21:02:24 adamdunkels Exp $ + */ + +/** + * \file + * Header file for Contik shell command netstat + * \author + * Adam Dunkels + */ + +#ifndef __SHELL_NETSTAT_H__ +#define __SHELL_NETSTAT_H__ + +#include "shell.h" + +void shell_netstat_init(void); + +#endif /* __SHELL_NETSTAT_H__ */