393 lines
12 KiB
C
393 lines
12 KiB
C
/****************************************************************************
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* apps/system/ping/ping.c
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <nuttx/clock.h>
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#include <unistd.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <errno.h>
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#include <limits.h>
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#include <fixedmath.h>
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#include <nuttx/net/ip.h>
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#include "netutils/icmp_ping.h"
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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#define ICMP_PING_DATALEN 56
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#define ICMP_NPINGS 10 /* Default number of pings */
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#define ICMP_POLL_DELAY 1000 /* 1 second in milliseconds */
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/****************************************************************************
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* Private Types
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****************************************************************************/
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struct ping_priv_s
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{
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int code; /* Notice code ICMP_I/E/W_XXX */
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long tmin; /* Minimum round trip time */
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long tmax; /* Maximum round trip time */
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long long tsum; /* Sum of all times, for doing average */
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long long tsum2; /* Sum2 is the sum of the squares of sum ,for doing mean deviation */
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};
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/****************************************************************************
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* Private Functions
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****************************************************************************/
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/****************************************************************************
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* Name: show_usage
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****************************************************************************/
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static void show_usage(FAR const char *progname, int exitcode)
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noreturn_function;
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static void show_usage(FAR const char *progname, int exitcode)
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{
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#if defined(CONFIG_LIBC_NETDB) && defined(CONFIG_NETDB_DNSCLIENT)
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printf("\nUsage: %s [-c <count>] [-i <interval>] [-W <timeout>] "
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"[-s <size>] <hostname>\n", progname);
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printf(" %s -h\n", progname);
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printf("\nWhere:\n");
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printf(" <hostname> is either an IPv4 address or the name of "
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"the remote host\n");
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printf(" that is requested the ICMPv4 ECHO reply.\n");
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#else
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printf("\nUsage: %s [-c <count>] [-i <interval>] [-W <timeout>] "
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"[-s <size>] <ip-address>\n", progname);
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printf(" %s -h\n", progname);
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printf("\nWhere:\n");
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printf(" <ip-address> is the IPv4 address request the ICMP "
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"ECHO reply.\n");
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#endif
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printf(" -c <count> determines the number of pings. Default %u.\n",
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ICMP_NPINGS);
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printf(" -i <interval> is the default delay between pings "
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"(milliseconds).\n");
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printf(" Default %d.\n", ICMP_POLL_DELAY);
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printf(" -W <timeout> is the timeout for wait response "
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"(milliseconds).\n");
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printf(" Default %d.\n", ICMP_POLL_DELAY);
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printf(" -s <size> specifies the number of data bytes to be sent. "
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"Default %u.\n",
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ICMP_PING_DATALEN);
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printf(" -h shows this text and exits.\n");
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exit(exitcode);
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}
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/****************************************************************************
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* Name: ping_result
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****************************************************************************/
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static void ping_result(FAR const struct ping_result_s *result)
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{
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FAR struct ping_priv_s *priv = result->info->priv;
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if (result->code < 0)
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{
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priv->code = result->code;
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}
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switch (result->code)
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{
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case ICMP_E_HOSTIP:
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fprintf(stderr, "ERROR: ping_gethostip(%s) failed\n",
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result->info->hostname);
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break;
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case ICMP_E_MEMORY:
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fprintf(stderr, "ERROR: Failed to allocate memory\n");
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break;
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case ICMP_E_SOCKET:
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fprintf(stderr, "ERROR: socket() failed: %ld\n", result->extra);
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break;
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case ICMP_I_BEGIN:
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printf("PING %u.%u.%u.%u %u bytes of data\n",
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ip4_addr1(result->dest.s_addr),
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ip4_addr2(result->dest.s_addr),
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ip4_addr3(result->dest.s_addr),
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ip4_addr4(result->dest.s_addr),
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result->info->datalen);
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break;
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case ICMP_E_SENDTO:
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fprintf(stderr, "ERROR: sendto failed at seqno %u: %ld\n",
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result->seqno, result->extra);
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break;
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case ICMP_E_SENDSMALL:
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fprintf(stderr, "ERROR: sendto returned %ld, expected %u\n",
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result->extra, result->outsize);
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break;
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case ICMP_E_POLL:
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fprintf(stderr, "ERROR: poll failed: %ld\n", result->extra);
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break;
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case ICMP_W_TIMEOUT:
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printf("No response from %u.%u.%u.%u: icmp_seq=%u time=%ld ms\n",
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ip4_addr1(result->dest.s_addr),
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ip4_addr2(result->dest.s_addr),
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ip4_addr3(result->dest.s_addr),
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ip4_addr4(result->dest.s_addr),
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result->seqno, result->extra);
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break;
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case ICMP_E_RECVFROM:
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fprintf(stderr, "ERROR: recvfrom failed: %ld\n", result->extra);
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break;
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case ICMP_E_RECVSMALL:
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fprintf(stderr, "ERROR: short ICMP packet: %ld\n", result->extra);
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break;
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case ICMP_W_IDDIFF:
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fprintf(stderr,
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"WARNING: Ignoring ICMP reply with ID %ld. "
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"Expected %u\n",
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result->extra, result->id);
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break;
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case ICMP_W_SEQNOBIG:
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fprintf(stderr,
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"WARNING: Ignoring ICMP reply to sequence %ld. "
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"Expected <= %u\n",
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result->extra, result->seqno);
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break;
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case ICMP_W_SEQNOSMALL:
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fprintf(stderr, "WARNING: Received after timeout\n");
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break;
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case ICMP_I_ROUNDTRIP:
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priv->tsum += result->extra;
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priv->tsum2 += (long long)result->extra * result->extra;
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if (result->extra < priv->tmin)
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{
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priv->tmin = result->extra;
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}
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if (result->extra > priv->tmax)
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{
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priv->tmax = result->extra;
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}
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printf("%u bytes from %u.%u.%u.%u: icmp_seq=%u time=%ld.%ld ms\n",
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result->info->datalen,
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ip4_addr1(result->dest.s_addr),
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ip4_addr2(result->dest.s_addr),
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ip4_addr3(result->dest.s_addr),
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ip4_addr4(result->dest.s_addr),
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result->seqno, result->extra / USEC_PER_MSEC,
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result->extra % USEC_PER_MSEC / MSEC_PER_DSEC);
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break;
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case ICMP_W_RECVBIG:
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fprintf(stderr,
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"WARNING: Ignoring ICMP reply with different payload "
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"size: %ld vs %u\n",
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result->extra, result->outsize);
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break;
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case ICMP_W_DATADIFF:
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fprintf(stderr, "WARNING: Echoed data corrupted\n");
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break;
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case ICMP_W_TYPE:
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fprintf(stderr, "WARNING: ICMP packet with unknown type: %ld\n",
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result->extra);
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break;
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case ICMP_I_FINISH:
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if (result->nrequests > 0)
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{
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unsigned int tmp;
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/* Calculate the percentage of lost packets */
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tmp = (100 * (result->nrequests - result->nreplies) +
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(result->nrequests >> 1)) /
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result->nrequests;
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printf("%u packets transmitted, %u received, %u%% packet loss, "
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"time %ld ms\n",
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result->nrequests, result->nreplies, tmp,
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result->extra / USEC_PER_MSEC);
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if (result->nreplies > 0)
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{
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long avg = 0;
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long long tempnum = 0;
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long tmdev = 0;
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if (priv->tsum > 0)
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{
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avg = priv->tsum / result->nreplies;
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tempnum = priv->tsum2 / result->nreplies -
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(long long)avg * avg;
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tmdev = ub16toi(ub32sqrtub16(uitoub32(tempnum)));
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}
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printf("rtt min/avg/max/mdev = %ld.%03ld/%ld.%03ld/"
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"%ld.%03ld/%ld.%03ld ms\n",
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priv->tmin / USEC_PER_MSEC,
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priv->tmin % USEC_PER_MSEC,
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avg / USEC_PER_MSEC, avg % USEC_PER_MSEC,
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priv->tmax / USEC_PER_MSEC,
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priv->tmax % USEC_PER_MSEC,
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tmdev / USEC_PER_MSEC, tmdev % USEC_PER_MSEC);
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}
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}
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break;
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}
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}
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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int main(int argc, FAR char *argv[])
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{
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struct ping_info_s info;
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struct ping_priv_s priv;
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FAR char *endptr;
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int exitcode;
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int option;
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info.count = ICMP_NPINGS;
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info.datalen = ICMP_PING_DATALEN;
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info.delay = ICMP_POLL_DELAY;
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info.timeout = ICMP_POLL_DELAY;
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info.callback = ping_result;
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info.priv = &priv;
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priv.code = ICMP_I_OK;
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priv.tmin = LONG_MAX;
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priv.tmax = 0;
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priv.tsum = 0;
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priv.tsum2 = 0;
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/* Parse command line options */
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exitcode = EXIT_FAILURE;
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while ((option = getopt(argc, argv, ":c:i:W:s:h")) != ERROR)
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{
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switch (option)
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{
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case 'c':
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{
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long count = strtol(optarg, &endptr, 10);
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if (count < 1 || count > UINT16_MAX)
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{
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fprintf(stderr, "ERROR: <count> out of range: %ld\n",
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count);
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goto errout_with_usage;
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}
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info.count = (uint16_t)count;
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}
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break;
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case 'i':
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{
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long delay = strtol(optarg, &endptr, 10);
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if (delay < 1 || delay > UINT16_MAX)
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{
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fprintf(stderr, "ERROR: <interval> out of range: %ld\n",
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delay);
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goto errout_with_usage;
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}
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info.delay = (int16_t)delay;
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}
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break;
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case 'W':
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{
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long timeout = strtol(optarg, &endptr, 10);
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if (timeout < 1 || timeout > UINT16_MAX)
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{
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fprintf(stderr, "ERROR: <timeout> out of range: %ld\n",
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timeout);
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goto errout_with_usage;
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}
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info.timeout = (int16_t)timeout;
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}
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break;
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case 's':
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{
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long datalen = strtol(optarg, &endptr, 10);
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if (datalen < 1 || datalen > UINT16_MAX)
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{
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fprintf(stderr, "ERROR: <size> out of range: %ld\n",
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datalen);
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goto errout_with_usage;
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}
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info.datalen = (uint16_t)datalen;
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}
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break;
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case 'h':
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exitcode = EXIT_SUCCESS;
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goto errout_with_usage;
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case ':':
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fprintf(stderr, "ERROR: Missing required argument\n");
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goto errout_with_usage;
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case '?':
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default:
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fprintf(stderr, "ERROR: Unrecognized option\n");
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goto errout_with_usage;
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}
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}
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/* There should be one final parameters remaining on the command line */
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if (optind >= argc)
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{
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printf("ERROR: Missing required <ip-address> argument\n");
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goto errout_with_usage;
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}
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info.hostname = argv[optind];
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icmp_ping(&info);
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return priv.code < 0 ? EXIT_FAILURE: EXIT_SUCCESS;
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errout_with_usage:
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optind = 0;
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show_usage(argv[0], exitcode);
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return exitcode; /* Not reachable */
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}
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