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authorChris Johns <chrisj@rtems.org>2014-09-14 22:00:18 (UTC)
committerChris Johns <chrisj@rtems.org>2014-09-16 05:19:58 (UTC)
commita8fa078f1efcc682f7155ab7423543d7d582f80a (patch)
treea8229f5851d15500c3491453dcf955b7bff35fb6
parent1434dbd6eb11a5dfa48bb28a786c6a4549faa166 (diff)
downloadrtems-a8fa078f1efcc682f7155ab7423543d7d582f80a.tar.bz2
shell: Add a ping command.
The ping code is taken from a recent FreeBSD release. Some options have been tested, other not tested or do not work. This could be due to the age of our TCP/IP stack. This version of ping will not work if more than 64 file descriptors are open at once because the select FD size is 64 as set in newlib.
-rw-r--r--cpukit/libmisc/Makefile.am2
-rw-r--r--cpukit/libmisc/shell/main_ping.c1976
-rw-r--r--cpukit/libmisc/shell/shellconfig.h7
-rw-r--r--cpukit/libmisc/shell/sysexits.h116
-rw-r--r--doc/shell/network.t311
5 files changed, 2390 insertions, 22 deletions
diff --git a/cpukit/libmisc/Makefile.am b/cpukit/libmisc/Makefile.am
index 421ddef..bcf8ff0 100644
--- a/cpukit/libmisc/Makefile.am
+++ b/cpukit/libmisc/Makefile.am
@@ -84,7 +84,7 @@ libshell_a_SOURCES = shell/cat_file.c shell/cmds.c shell/internal.h \
shell/main_mallocinfo.c shell/main_mdump.c shell/main_medit.c \
shell/main_mfill.c shell/main_mkdir.c shell/main_mount.c \
shell/main_mmove.c shell/main_msdosfmt.c \
- shell/main_mv.c shell/main_perioduse.c \
+ shell/main_mv.c shell/main_perioduse.c shell/main_ping.c \
shell/main_pwd.c shell/main_rm.c shell/main_rmdir.c shell/main_sleep.c \
shell/main_stackuse.c shell/main_tty.c shell/main_umask.c \
shell/main_unmount.c shell/main_blksync.c shell/main_whoami.c \
diff --git a/cpukit/libmisc/shell/main_ping.c b/cpukit/libmisc/shell/main_ping.c
new file mode 100644
index 0000000..a13d726
--- /dev/null
+++ b/cpukit/libmisc/shell/main_ping.c
@@ -0,0 +1,1976 @@
+#ifdef __rtems__
+#define __need_getopt_newlib
+#include <getopt.h>
+#endif
+/*
+ * Copyright (c) 1989, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Mike Muuss.
+ *
+ * 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.
+ * 4. Neither the name of the University 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 REGENTS 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 REGENTS 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.
+ */
+
+#if !__rtems__
+#ifndef lint
+static const char copyright[] =
+"@(#) Copyright (c) 1989, 1993\n\
+ The Regents of the University of California. All rights reserved.\n";
+#endif /* not lint */
+
+#ifndef lint
+static char sccsid[] = "@(#)ping.c 8.1 (Berkeley) 6/5/93";
+#endif /* not lint */
+#endif
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+/*
+ * P I N G . C
+ *
+ * Using the Internet Control Message Protocol (ICMP) "ECHO" facility,
+ * measure round-trip-delays and packet loss across network paths.
+ *
+ * Author -
+ * Mike Muuss
+ * U. S. Army Ballistic Research Laboratory
+ * December, 1983
+ *
+ * Status -
+ * Public Domain. Distribution Unlimited.
+ * Bugs -
+ * More statistics could always be gathered.
+ * This program has to run SUID to ROOT to access the ICMP socket.
+ */
+
+#include <sys/param.h> /* NB: we rely on this for <sys/types.h> */
+#include <sys/socket.h>
+#include <sys/sysctl.h>
+#include <sys/time.h>
+#include <sys/uio.h>
+
+#include <netinet/in.h>
+#include <netinet/in_systm.h>
+#include <netinet/ip.h>
+#include <netinet/ip_icmp.h>
+#include <netinet/ip_var.h>
+#include <arpa/inet.h>
+
+#ifdef IPSEC
+#include <netipsec/ipsec.h>
+#endif /*IPSEC*/
+
+#include <ctype.h>
+//#include <err.h>
+#include <errno.h>
+#include <math.h>
+#include <netdb.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+//#include <sysexits.h>
+#include <unistd.h>
+
+#include "err.h"
+#include "sysexits.h"
+#include <sys/select.h>
+
+#define INADDR_LEN ((int)sizeof(in_addr_t))
+#define TIMEVAL_LEN ((int)sizeof(struct tv32))
+#define MASK_LEN (ICMP_MASKLEN - ICMP_MINLEN)
+#define TS_LEN (ICMP_TSLEN - ICMP_MINLEN)
+#define DEFDATALEN 56 /* default data length */
+#define FLOOD_BACKOFF 20000 /* usecs to back off if F_FLOOD mode */
+ /* runs out of buffer space */
+#define MAXIPLEN (sizeof(struct ip) + MAX_IPOPTLEN)
+#define MAXICMPLEN (ICMP_ADVLENMIN + MAX_IPOPTLEN)
+#define MAXWAIT 10000 /* max ms to wait for response */
+#define MAXALARM (60 * 60) /* max seconds for alarm timeout */
+#define MAXTOS 255
+
+#define A(bit) rcvd_tbl[(bit)>>3] /* identify byte in array */
+#define B(bit) (1 << ((bit) & 0x07)) /* identify bit in byte */
+#define SET(bit) (A(bit) |= B(bit))
+#define CLR(bit) (A(bit) &= (~B(bit)))
+#define TST(bit) (A(bit) & B(bit))
+
+struct tv32 {
+ int32_t tv32_sec;
+ int32_t tv32_usec;
+};
+
+/* various options */
+#if !__rtems__
+int options;
+#endif
+#define F_FLOOD 0x0001
+#define F_INTERVAL 0x0002
+#define F_NUMERIC 0x0004
+#define F_PINGFILLED 0x0008
+#define F_QUIET 0x0010
+#define F_RROUTE 0x0020
+#define F_SO_DEBUG 0x0040
+#define F_SO_DONTROUTE 0x0080
+#define F_VERBOSE 0x0100
+#define F_QUIET2 0x0200
+#define F_NOLOOP 0x0400
+#define F_MTTL 0x0800
+#define F_MIF 0x1000
+#define F_AUDIBLE 0x2000
+#ifdef IPSEC
+#ifdef IPSEC_POLICY_IPSEC
+#define F_POLICY 0x4000
+#endif /*IPSEC_POLICY_IPSEC*/
+#endif /*IPSEC*/
+#define F_TTL 0x8000
+#define F_MISSED 0x10000
+#define F_ONCE 0x20000
+#define F_HDRINCL 0x40000
+#define F_MASK 0x80000
+#define F_TIME 0x100000
+#define F_SWEEP 0x200000
+#define F_WAITTIME 0x400000
+
+/*
+ * MAX_DUP_CHK is the number of bits in received table, i.e. the maximum
+ * number of received sequence numbers we can keep track of. Change 128
+ * to 8192 for complete accuracy...
+ */
+#define MAX_DUP_CHK (8 * 128)
+#if !__rtems__
+int mx_dup_ck = MAX_DUP_CHK;
+char rcvd_tbl[MAX_DUP_CHK / 8];
+
+struct sockaddr_in whereto; /* who to ping */
+int datalen = DEFDATALEN;
+int maxpayload;
+int s; /* socket file descriptor */
+u_char outpackhdr[IP_MAXPACKET], *outpack;
+#endif
+char BBELL = '\a'; /* characters written for MISSED and AUDIBLE */
+char BSPACE = '\b'; /* characters written for flood */
+char DOT = '.';
+#if !__rtems__
+char *hostname;
+char *shostname;
+int ident; /* process id to identify our packets */
+int uid; /* cached uid for micro-optimization */
+u_char icmp_type = ICMP_ECHO;
+u_char icmp_type_rsp = ICMP_ECHOREPLY;
+int phdr_len = 0;
+int send_len;
+
+/* counters */
+long nmissedmax; /* max value of ntransmitted - nreceived - 1 */
+long npackets; /* max packets to transmit */
+long nreceived; /* # of packets we got back */
+long nrepeats; /* number of duplicates */
+long ntransmitted; /* sequence # for outbound packets = #sent */
+long snpackets; /* max packets to transmit in one sweep */
+long snreceived; /* # of packets we got back in this sweep */
+long sntransmitted; /* # of packets we sent in this sweep */
+int sweepmax; /* max value of payload in sweep */
+int sweepmin = 0; /* start value of payload in sweep */
+int sweepincr = 1; /* payload increment in sweep */
+int interval = 1000; /* interval between packets, ms */
+int waittime = MAXWAIT; /* timeout for each packet */
+long nrcvtimeout = 0; /* # of packets we got back after waittime */
+
+/* timing */
+int timing; /* flag to do timing */
+double tmin = 999999999.0; /* minimum round trip time */
+double tmax = 0.0; /* maximum round trip time */
+double tsum = 0.0; /* sum of all times, for doing average */
+double tsumsq = 0.0; /* sum of all times squared, for std. dev. */
+
+volatile sig_atomic_t finish_up; /* nonzero if we've been told to finish up */
+volatile sig_atomic_t siginfo_p;
+
+static void fill(char *, char *);
+static u_short in_cksum(u_short *, int);
+static void check_status(void);
+static void finish(void) __dead2;
+static void pinger(void);
+static char *pr_addr(struct in_addr);
+static char *pr_ntime(n_time);
+static void pr_icmph(struct icmp *);
+static void pr_iph(struct ip *);
+static void pr_pack(char *, int, struct sockaddr_in *, struct timeval *);
+static void pr_retip(struct ip *);
+static void status(int);
+static void stopit(int);
+static void tvsub(struct timeval *, struct timeval *);
+static void usage(void) __dead2;
+#endif
+
+#if __rtems__
+#define _ALIGNBYTES CPU_ALIGNMENT
+#define _ALIGN(p) (((uintptr_t)(p) + _ALIGNBYTES) & ~_ALIGNBYTES)
+#define CMSG_SPACE(l) (_ALIGN(sizeof(struct cmsghdr)) + _ALIGN(l))
+#define CMSG_LEN(l) (_ALIGN(sizeof(struct cmsghdr)) + (l))
+typedef struct
+{
+ int options;
+ int mx_dup_ck;
+ char rcvd_tbl[MAX_DUP_CHK / 8];
+ struct sockaddr_in whereto;
+ int datalen;
+ int maxpayload;
+ int s;
+ u_char outpackhdr[IP_MAXPACKET];
+ u_char *outpack;
+ char *hostname;
+ char *shostname;
+ int ident;
+ int uid;
+ u_char icmp_type;
+ u_char icmp_type_rsp;
+ int phdr_len;
+ int send_len;
+ long nmissedmax;
+ long npackets;
+ long nreceived;
+ long nrepeats;
+ long ntransmitted;
+ long snpackets;
+ long snreceived;
+ long sntransmitted;
+ int sweepmax;
+ int sweepmin;
+ int sweepincr;
+ int interval;
+ int waittime;
+ long nrcvtimeout;
+ int timing;
+ double tmin;
+ double tmax;
+ double tsum;
+ double tsumsq;
+ volatile sig_atomic_t finish_up;
+ volatile sig_atomic_t siginfo_p;
+
+ /* main */
+ u_char packet[IP_MAXPACKET] __aligned(4);
+
+ /* pr_pack */
+ int old_rrlen;
+ char old_rr[MAX_IPOPTLEN];
+
+ int exit_code;
+ jmp_buf exit_jmp;
+} rtems_shell_globals_t;
+
+#define options_ globals->options
+#define mx_dup_ck globals->mx_dup_ck
+#define rcvd_tbl globals->rcvd_tbl
+#define whereto globals->whereto
+#define datalen globals->datalen
+#define maxpayload globals->maxpayload
+#define s globals->s
+#define outpackhdr globals->outpackhdr
+#define outpack globals->outpack
+#define hostname globals->hostname
+#define shostname globals->shostname
+#define ident globals->ident
+#define uid globals->uid
+#define icmp_type_ globals->icmp_type
+#define icmp_type_rsp globals->icmp_type_rsp
+#define phdr_len globals->phdr_len
+#define send_len globals->send_len
+#define nmissedmax globals->nmissedmax
+#define npackets globals->npackets
+#define nreceived globals->nreceived
+#define nrepeats globals->nrepeats
+#define ntransmitted globals->ntransmitted
+#define snpackets globals->snpackets
+#define snreceived globals->snreceived
+#define sntransmitted globals->sntransmitted
+#define sweepmax globals->sweepmax
+#define sweepmin globals->sweepmin
+#define sweepincr globals->sweepincr
+#define interval globals->interval
+#define waittime globals->waittime
+#define nrcvtimeout globals->nrcvtimeout
+#define timing globals->timing
+#define tmin globals->tmin
+#define tmax globals->tmax
+#define tsum globals->tsum
+#define tsumsq globals->tsumsq
+#define finish_up globals->finish_up
+#define siginfo_p globals->siginfo_p
+
+#define old_rrlen globals->old_rrlen
+#define old_rr globals->old_rr
+
+#define packet_ globals->packet
+
+static u_short in_cksum(u_short *, int);
+static char *pr_ntime(n_time);
+static void pr_icmph(struct icmp *);
+static void pr_iph(struct ip *);
+static void pr_retip(struct ip *);
+static void status(int);
+static void stopit(int);
+static void tvsub(struct timeval *, struct timeval *);
+
+#define fill(_a1, _a2) g_fill(_a1, _a2, globals)
+static void g_fill(char *_a1, char *_a2, rtems_shell_globals_t* globals);
+
+#define check_status() g_check_status(globals)
+static void g_check_status(rtems_shell_globals_t* globals);
+
+#define finish() g_finish(globals)
+static void g_finish(rtems_shell_globals_t* globals) __dead2;
+
+#define pinger() g_pinger(globals)
+static void g_pinger(rtems_shell_globals_t* globals);
+
+#define pr_addr(_a1) g_pr_addr(_a1, globals)
+static char *g_pr_addr(struct in_addr, rtems_shell_globals_t* globals);
+
+#define pr_pack(_a1, _a2, _a3, _a4) g_pr_pack(_a1, _a2, _a3, _a4, globals)
+static void g_pr_pack(char *, int, struct sockaddr_in *, struct timeval *, rtems_shell_globals_t* globals);
+
+#define usage() g_usage(globals)
+static void g_usage(rtems_shell_globals_t* globals) __dead2;
+
+void
+rtems_shell_ping_exit (rtems_shell_globals_t* globals, int code)
+{
+ globals->exit_code = code;
+ longjmp (globals->exit_jmp, 1);
+}
+
+#define exit(_c) rtems_shell_ping_exit (globals, _c)
+#define _exit(_c) exit(_c)
+
+static int main_ping(int argc, char *const *argv, rtems_shell_globals_t* globals);
+static int rtems_shell_main_ping(int argc, char *argv[])
+{
+ rtems_shell_globals_t* globals = malloc(sizeof(rtems_shell_globals_t));
+ if (!globals)
+ {
+ printf("error: no memory\n");
+ return 1;
+ }
+ memset (globals, 0, sizeof (rtems_shell_globals_t));
+ npackets = 5;
+ datalen = DEFDATALEN;
+ icmp_type_ = ICMP_ECHO;
+ icmp_type_rsp = ICMP_ECHOREPLY;
+ phdr_len = 0;
+ sweepmin = 0;
+ sweepincr = 1;
+ interval = 1000;
+ waittime = MAXWAIT;
+ nrcvtimeout = 0;
+ tmin = 999999999.0;
+ tmax = 0.0;
+ tsum = 0.0;
+ tsumsq = 0.0;
+ globals->exit_code = 1;
+ if (setjmp (globals->exit_jmp) == 0)
+ return main_ping (argc, argv, globals);
+ return globals->exit_code;
+}
+#endif
+
+
+
+int
+#ifdef __rtems__
+main_ping(argc, argv, globals)
+#else
+main(argc, argv)
+#endif
+ int argc;
+ char *const *argv;
+ rtems_shell_globals_t* globals;
+{
+ struct sockaddr_in from, sock_in;
+ struct in_addr ifaddr;
+ struct timeval last, intvl;
+ struct iovec iov;
+ struct ip *ip;
+ struct msghdr msg;
+ struct sigaction si_sa;
+ size_t sz;
+#if !__rtems__
+ u_char *datap, packet[IP_MAXPACKET] __aligned(4);
+#else
+ u_char *datap;
+#endif
+ char *ep, *source, *target, *payload;
+ struct hostent *hp;
+#ifdef IPSEC_POLICY_IPSEC
+ char *policy_in, *policy_out;
+#endif
+ struct sockaddr_in *to;
+ double t;
+ u_long alarmtimeout, ultmp;
+ int almost_done, ch, df, hold, i, icmp_len, mib[4], preload, sockerrno,
+ tos, ttl;
+ char ctrl[CMSG_SPACE(sizeof(struct timeval))];
+ char hnamebuf[MAXHOSTNAMELEN], snamebuf[MAXHOSTNAMELEN];
+#ifdef IP_OPTIONS
+ char rspace[MAX_IPOPTLEN]; /* record route space */
+#endif
+ unsigned char loop, mttl;
+#ifdef __rtems__
+ struct getopt_data getopt_reent;
+#define optarg getopt_reent.optarg
+#define optind getopt_reent.optind
+#define opterr getopt.reent.opterr
+#define optopt getopt.reent.optopt
+#endif
+
+ payload = source = NULL;
+#ifdef IPSEC_POLICY_IPSEC
+ policy_in = policy_out = NULL;
+#endif
+
+ /*
+ * Do the stuff that we need root priv's for *first*, and
+ * then drop our setuid bit. Save error reporting for
+ * after arg parsing.
+ */
+ s = socket(AF_INET, SOCK_RAW, IPPROTO_ICMP);
+ sockerrno = errno;
+
+ setuid(getuid());
+ uid = getuid();
+
+ alarmtimeout = df = preload = tos = 0;
+
+ outpack = outpackhdr + sizeof(struct ip);
+#ifdef __rtems__
+ memset(&getopt_reent, 0, sizeof(getopt_data));
+ while ((ch = getopt_r(argc, argv,
+#else
+ while ((ch = getopt(argc, argv,
+#endif
+ "Aac:DdfG:g:h:I:i:Ll:M:m:nop:QqRrS:s:T:t:vW:z:"
+#ifdef IPSEC
+#ifdef IPSEC_POLICY_IPSEC
+ "P:"
+#endif /*IPSEC_POLICY_IPSEC*/
+#endif /*IPSEC*/
+#ifdef __rtems__
+ , &getopt_reent
+#endif
+ )) != -1)
+ {
+ switch(ch) {
+ case 'A':
+ options_ |= F_MISSED;
+ break;
+ case 'a':
+ options_ |= F_AUDIBLE;
+ break;
+ case 'c':
+ ultmp = strtoul(optarg, &ep, 0);
+ if (*ep || ep == optarg || ultmp > LONG_MAX || !ultmp)
+ errx(&globals->exit_jmp, EX_USAGE,
+ "invalid count of packets to transmit: `%s'",
+ optarg);
+ npackets = ultmp;
+ break;
+ case 'D':
+ options_ |= F_HDRINCL;
+ df = 1;
+ break;
+ case 'd':
+ options_ |= F_SO_DEBUG;
+ break;
+ case 'f':
+ if (uid) {
+ errno = EPERM;
+ err(&globals->exit_jmp, EX_NOPERM, "-f flag");
+ }
+ options_ |= F_FLOOD;
+ setbuf(stdout, (char *)NULL);
+ break;
+ case 'G': /* Maximum packet size for ping sweep */
+ ultmp = strtoul(optarg, &ep, 0);
+ if (*ep || ep == optarg)
+ errx(&globals->exit_jmp, EX_USAGE, "invalid packet size: `%s'",
+ optarg);
+ if (uid != 0 && ultmp > DEFDATALEN) {
+ errno = EPERM;
+ err(&globals->exit_jmp, EX_NOPERM,
+ "packet size too large: %lu > %u",
+ ultmp, DEFDATALEN);
+ }
+ options_ |= F_SWEEP;
+ sweepmax = ultmp;
+ break;
+ case 'g': /* Minimum packet size for ping sweep */
+ ultmp = strtoul(optarg, &ep, 0);
+ if (*ep || ep == optarg)
+ errx(&globals->exit_jmp, EX_USAGE, "invalid packet size: `%s'",
+ optarg);
+ if (uid != 0 && ultmp > DEFDATALEN) {
+ errno = EPERM;
+ err(&globals->exit_jmp, EX_NOPERM,
+ "packet size too large: %lu > %u",
+ ultmp, DEFDATALEN);
+ }
+ options_ |= F_SWEEP;
+ sweepmin = ultmp;
+ break;
+ case 'h': /* Packet size increment for ping sweep */
+ ultmp = strtoul(optarg, &ep, 0);
+ if (*ep || ep == optarg || ultmp < 1)
+ errx(&globals->exit_jmp, EX_USAGE, "invalid increment size: `%s'",
+ optarg);
+ if (uid != 0 && ultmp > DEFDATALEN) {
+ errno = EPERM;
+ err(&globals->exit_jmp, EX_NOPERM,
+ "packet size too large: %lu > %u",
+ ultmp, DEFDATALEN);
+ }
+ options_ |= F_SWEEP;
+ sweepincr = ultmp;
+ break;
+ case 'I': /* multicast interface */
+ if (inet_aton(optarg, &ifaddr) == 0)
+ errx(&globals->exit_jmp, EX_USAGE,
+ "invalid multicast interface: `%s'",
+ optarg);
+ options_ |= F_MIF;
+ break;
+ case 'i': /* wait between sending packets */
+ t = strtod(optarg, &ep) * 1000.0;
+ if (*ep || ep == optarg || t > (double)INT_MAX)
+ errx(&globals->exit_jmp, EX_USAGE, "invalid timing interval: `%s'",
+ optarg);
+ options_ |= F_INTERVAL;
+ interval = (int)t;
+ if (uid && interval < 1000) {
+ errno = EPERM;
+ err(&globals->exit_jmp, EX_NOPERM, "-i interval too short");
+ }
+ break;
+ case 'L':
+ options_ |= F_NOLOOP;
+ loop = 0;
+ break;
+ case 'l':
+ ultmp = strtoul(optarg, &ep, 0);
+ if (*ep || ep == optarg || ultmp > INT_MAX)
+ errx(&globals->exit_jmp, EX_USAGE,
+ "invalid preload value: `%s'", optarg);
+ if (uid) {
+ errno = EPERM;
+ err(&globals->exit_jmp, EX_NOPERM, "-l flag");
+ }
+ preload = ultmp;
+ break;
+ case 'M':
+ switch(optarg[0]) {
+ case 'M':
+ case 'm':
+ options_ |= F_MASK;
+ break;
+ case 'T':
+ case 't':
+ options_ |= F_TIME;
+ break;
+ default:
+ errx(&globals->exit_jmp, EX_USAGE, "invalid message: `%c'", optarg[0]);
+ break;
+ }
+ break;
+ case 'm': /* TTL */
+ ultmp = strtoul(optarg, &ep, 0);
+ if (*ep || ep == optarg || ultmp > MAXTTL)
+ errx(&globals->exit_jmp, EX_USAGE, "invalid TTL: `%s'", optarg);
+ ttl = ultmp;
+ options_ |= F_TTL;
+ break;
+ case 'n':
+ options_ |= F_NUMERIC;
+ break;
+ case 'o':
+ options_ |= F_ONCE;
+ break;
+#ifdef IPSEC
+#ifdef IPSEC_POLICY_IPSEC
+ case 'P':
+ options_ |= F_POLICY;
+ if (!strncmp("in", optarg, 2))
+ policy_in = strdup(optarg);
+ else if (!strncmp("out", optarg, 3))
+ policy_out = strdup(optarg);
+ else
+ errx(&globals->exit_jmp, 1, "invalid security policy");
+ break;
+#endif /*IPSEC_POLICY_IPSEC*/
+#endif /*IPSEC*/
+ case 'p': /* fill buffer with user pattern */
+ options_ |= F_PINGFILLED;
+ payload = optarg;
+ break;
+ case 'Q':
+ options_ |= F_QUIET2;
+ break;
+ case 'q':
+ options_ |= F_QUIET;
+ break;
+ case 'R':
+ options_ |= F_RROUTE;
+ break;
+ case 'r':
+ options_ |= F_SO_DONTROUTE;
+ break;
+ case 'S':
+ source = optarg;
+ break;
+ case 's': /* size of packet to send */
+ ultmp = strtoul(optarg, &ep, 0);
+ if (*ep || ep == optarg)
+ errx(&globals->exit_jmp, EX_USAGE, "invalid packet size: `%s'",
+ optarg);
+ if (uid != 0 && ultmp > DEFDATALEN) {
+ errno = EPERM;
+ err(&globals->exit_jmp, EX_NOPERM,
+ "packet size too large: %lu > %u",
+ ultmp, DEFDATALEN);
+ }
+ datalen = ultmp;
+ break;
+ case 'T': /* multicast TTL */
+ ultmp = strtoul(optarg, &ep, 0);
+ if (*ep || ep == optarg || ultmp > MAXTTL)
+ errx(&globals->exit_jmp, EX_USAGE, "invalid multicast TTL: `%s'",
+ optarg);
+ mttl = ultmp;
+ options_ |= F_MTTL;
+ break;
+ case 't':
+ alarmtimeout = strtoul(optarg, &ep, 0);
+ if ((alarmtimeout < 1) || (alarmtimeout == ULONG_MAX))
+ errx(&globals->exit_jmp, EX_USAGE, "invalid timeout: `%s'",
+ optarg);
+ if (alarmtimeout > MAXALARM)
+ errx(&globals->exit_jmp, EX_USAGE, "invalid timeout: `%s' > %d",
+ optarg, MAXALARM);
+ alarm((int)alarmtimeout);
+ break;
+ case 'v':
+ options_ |= F_VERBOSE;
+ break;
+ case 'W': /* wait ms for answer */
+ t = strtod(optarg, &ep);
+ if (*ep || ep == optarg || t > (double)INT_MAX)
+ errx(&globals->exit_jmp, EX_USAGE, "invalid timing interval: `%s'",
+ optarg);
+ options_ |= F_WAITTIME;
+ waittime = (int)t;
+ break;
+ case 'z':
+ options_ |= F_HDRINCL;
+ ultmp = strtoul(optarg, &ep, 0);
+ if (*ep || ep == optarg || ultmp > MAXTOS)
+ errx(&globals->exit_jmp, EX_USAGE, "invalid TOS: `%s'", optarg);
+ tos = ultmp;
+ break;
+ default:
+ usage();
+
+ }
+ }
+
+ if (argc - optind != 1)
+ usage();
+
+ target = argv[optind];
+
+ switch (options_ & (F_MASK|F_TIME)) {
+ case 0: break;
+ case F_MASK:
+ icmp_type_ = ICMP_MASKREQ;
+ icmp_type_rsp = ICMP_MASKREPLY;
+ phdr_len = MASK_LEN;
+ if (!(options_ & F_QUIET))
+ (void)printf("ICMP_MASKREQ\n");
+ break;
+ case F_TIME:
+ icmp_type_ = ICMP_TSTAMP;
+ icmp_type_rsp = ICMP_TSTAMPREPLY;
+ phdr_len = TS_LEN;
+ if (!(options_ & F_QUIET))
+ (void)printf("ICMP_TSTAMP\n");
+ break;
+ default:
+ errx(&globals->exit_jmp, EX_USAGE, "ICMP_TSTAMP and ICMP_MASKREQ are exclusive.");
+ break;
+ }
+ icmp_len = sizeof(struct ip) + ICMP_MINLEN + phdr_len;
+ if (options_ & F_RROUTE)
+ icmp_len += MAX_IPOPTLEN;
+ maxpayload = IP_MAXPACKET - icmp_len;
+ if (datalen > maxpayload)
+ errx(&globals->exit_jmp, EX_USAGE, "packet size too large: %d > %d", datalen,
+ maxpayload);
+ send_len = icmp_len + datalen;
+ datap = &outpack[ICMP_MINLEN + phdr_len + TIMEVAL_LEN];
+ if (options_ & F_PINGFILLED) {
+ fill((char *)datap, payload);
+ }
+ if (source) {
+ bzero((char *)&sock_in, sizeof(sock_in));
+ sock_in.sin_family = AF_INET;
+ if (inet_aton(source, &sock_in.sin_addr) != 0) {
+ shostname = source;
+ } else {
+ hp = gethostbyname2(source, AF_INET);
+ if (!hp)
+ errx(&globals->exit_jmp, EX_NOHOST, "cannot resolve %s: %s",
+ source, hstrerror(h_errno));
+
+ sock_in.sin_len = sizeof sock_in;
+ if ((unsigned)hp->h_length > sizeof(sock_in.sin_addr) ||
+ hp->h_length < 0)
+ errx(&globals->exit_jmp, 1, "gethostbyname2: illegal address");
+ memcpy(&sock_in.sin_addr, hp->h_addr_list[0],
+ sizeof(sock_in.sin_addr));
+ (void)strncpy(snamebuf, hp->h_name,
+ sizeof(snamebuf) - 1);
+ snamebuf[sizeof(snamebuf) - 1] = '\0';
+ shostname = snamebuf;
+ }
+ if (bind(s, (struct sockaddr *)&sock_in, sizeof sock_in) == -1)
+ err(&globals->exit_jmp, 1, "bind");
+ }
+
+ bzero(&whereto, sizeof(whereto));
+ to = &whereto;
+ to->sin_family = AF_INET;
+ to->sin_len = sizeof *to;
+ if (inet_aton(target, &to->sin_addr) != 0) {
+ hostname = target;
+ } else {
+ hp = gethostbyname2(target, AF_INET);
+ if (!hp)
+ errx(&globals->exit_jmp, EX_NOHOST, "cannot resolve %s: %s",
+ target, hstrerror(h_errno));
+
+ if ((unsigned)hp->h_length > sizeof(to->sin_addr))
+ errx(&globals->exit_jmp, 1, "gethostbyname2 returned an illegal address");
+ memcpy(&to->sin_addr, hp->h_addr_list[0], sizeof to->sin_addr);
+ (void)strncpy(hnamebuf, hp->h_name, sizeof(hnamebuf) - 1);
+ hnamebuf[sizeof(hnamebuf) - 1] = '\0';
+ hostname = hnamebuf;
+ }
+
+ if (options_ & F_FLOOD && options_ & F_INTERVAL)
+ errx(&globals->exit_jmp, EX_USAGE, "-f and -i: incompatible options");
+
+ if (options_ & F_FLOOD && IN_MULTICAST(ntohl(to->sin_addr.s_addr)))
+ errx(&globals->exit_jmp, EX_USAGE,
+ "-f flag cannot be used with multicast destination");
+ if (options_ & (F_MIF | F_NOLOOP | F_MTTL)
+ && !IN_MULTICAST(ntohl(to->sin_addr.s_addr)))
+ errx(&globals->exit_jmp, EX_USAGE,
+ "-I, -L, -T flags cannot be used with unicast destination");
+
+ if (datalen >= TIMEVAL_LEN) /* can we time transfer */
+ timing = 1;
+
+ if (!(options_ & F_PINGFILLED))
+ for (i = TIMEVAL_LEN; i < datalen; ++i)
+ *datap++ = i;
+
+ ident = getpid() & 0xFFFF;
+
+ if (s < 0) {
+ errno = sockerrno;
+ err(&globals->exit_jmp, EX_OSERR, "socket");
+ }
+ hold = 1;
+ if (options_ & F_SO_DEBUG)
+ (void)setsockopt(s, SOL_SOCKET, SO_DEBUG, (char *)&hold,
+ sizeof(hold));
+ if (options_ & F_SO_DONTROUTE)
+ (void)setsockopt(s, SOL_SOCKET, SO_DONTROUTE, (char *)&hold,
+ sizeof(hold));
+#ifdef IPSEC
+#ifdef IPSEC_POLICY_IPSEC
+ if (options_ & F_POLICY) {
+ char *buf;
+ if (policy_in != NULL) {
+ buf = ipsec_set_policy(policy_in, strlen(policy_in));
+ if (buf == NULL)
+ errx(&globals->exit_jmp, EX_CONFIG, "%s", ipsec_strerror());
+ if (setsockopt(s, IPPROTO_IP, IP_IPSEC_POLICY,
+ buf, ipsec_get_policylen(buf)) < 0)
+ err(EX_CONFIG,
+ "ipsec policy cannot be configured");
+ free(buf);
+ }
+
+ if (policy_out != NULL) {
+ buf = ipsec_set_policy(policy_out, strlen(policy_out));
+ if (buf == NULL)
+ errx(&globals->exit_jmp, EX_CONFIG, "%s", ipsec_strerror());
+ if (setsockopt(s, IPPROTO_IP, IP_IPSEC_POLICY,
+ buf, ipsec_get_policylen(buf)) < 0)
+ err(EX_CONFIG,
+ "ipsec policy cannot be configured");
+ free(buf);
+ }
+ }
+#endif /*IPSEC_POLICY_IPSEC*/
+#endif /*IPSEC*/
+
+ if (options_ & F_HDRINCL) {
+ ip = (struct ip*)outpackhdr;
+ if (!(options_ & (F_TTL | F_MTTL))) {
+ mib[0] = CTL_NET;
+ mib[1] = PF_INET;
+ mib[2] = IPPROTO_IP;
+ mib[3] = IPCTL_DEFTTL;
+ sz = sizeof(ttl);
+ if (sysctl(mib, 4, &ttl, &sz, NULL, 0) == -1)
+ err(&globals->exit_jmp, 1, "sysctl(net.inet.ip.ttl)");
+ }
+ setsockopt(s, IPPROTO_IP, IP_HDRINCL, &hold, sizeof(hold));
+ ip->ip_v = IPVERSION;
+ ip->ip_hl = sizeof(struct ip) >> 2;
+ ip->ip_tos = tos;
+ ip->ip_id = 0;
+ ip->ip_off = df ? IP_DF : 0;
+ ip->ip_ttl = ttl;
+ ip->ip_p = IPPROTO_ICMP;
+ ip->ip_src.s_addr = source ? sock_in.sin_addr.s_addr : INADDR_ANY;
+ ip->ip_dst = to->sin_addr;
+ }
+ /* record route option */
+ if (options_ & F_RROUTE) {
+#ifdef IP_OPTIONS
+ bzero(rspace, sizeof(rspace));
+ rspace[IPOPT_OPTVAL] = IPOPT_RR;
+ rspace[IPOPT_OLEN] = sizeof(rspace) - 1;
+ rspace[IPOPT_OFFSET] = IPOPT_MINOFF;
+ rspace[sizeof(rspace) - 1] = IPOPT_EOL;
+ if (setsockopt(s, IPPROTO_IP, IP_OPTIONS, rspace,
+ sizeof(rspace)) < 0)
+ err(&globals->exit_jmp, EX_OSERR, "setsockopt IP_OPTIONS");
+#else
+ errx(&globals->exit_jmp, EX_UNAVAILABLE,
+ "record route not available in this implementation");
+#endif /* IP_OPTIONS */
+ }
+
+ if (options_ & F_TTL) {
+ if (setsockopt(s, IPPROTO_IP, IP_TTL, &ttl,
+ sizeof(ttl)) < 0) {
+ err(&globals->exit_jmp, EX_OSERR, "setsockopt IP_TTL");
+ }
+ }
+ if (options_ & F_NOLOOP) {
+ if (setsockopt(s, IPPROTO_IP, IP_MULTICAST_LOOP, &loop,
+ sizeof(loop)) < 0) {
+ err(&globals->exit_jmp, EX_OSERR, "setsockopt IP_MULTICAST_LOOP");
+ }
+ }
+ if (options_ & F_MTTL) {
+ if (setsockopt(s, IPPROTO_IP, IP_MULTICAST_TTL, &mttl,
+ sizeof(mttl)) < 0) {
+ err(&globals->exit_jmp, EX_OSERR, "setsockopt IP_MULTICAST_TTL");
+ }
+ }
+ if (options_ & F_MIF) {
+ if (setsockopt(s, IPPROTO_IP, IP_MULTICAST_IF, &ifaddr,
+ sizeof(ifaddr)) < 0) {
+ err(&globals->exit_jmp, EX_OSERR, "setsockopt IP_MULTICAST_IF");
+ }
+ }
+#ifdef SO_TIMESTAMP
+ { int on = 1;
+ if (setsockopt(s, SOL_SOCKET, SO_TIMESTAMP, &on, sizeof(on)) < 0)
+ err(&globals->exit_jmp, EX_OSERR, "setsockopt SO_TIMESTAMP");
+ }
+#endif
+ if (sweepmax) {
+ if (sweepmin >= sweepmax)
+ errx(&globals->exit_jmp, EX_USAGE, "Maximum packet size must be greater than the minimum packet size");
+
+ if (datalen != DEFDATALEN)
+ errx(&globals->exit_jmp, EX_USAGE, "Packet size and ping sweep are mutually exclusive");
+
+ if (npackets > 0) {
+ snpackets = npackets;
+ npackets = 0;
+ } else
+ snpackets = 1;
+ datalen = sweepmin;
+ send_len = icmp_len + sweepmin;
+ }
+ if (options_ & F_SWEEP && !sweepmax)
+ errx(&globals->exit_jmp, EX_USAGE, "Maximum sweep size must be specified");
+
+ /*
+ * When pinging the broadcast address, you can get a lot of answers.
+ * Doing something so evil is useful if you are trying to stress the
+ * ethernet, or just want to fill the arp cache to get some stuff for
+ * /etc/ethers. But beware: RFC 1122 allows hosts to ignore broadcast
+ * or multicast pings if they wish.
+ */
+
+ /*
+ * XXX receive buffer needs undetermined space for mbuf overhead
+ * as well.
+ */
+ hold = IP_MAXPACKET + 128;
+ (void)setsockopt(s, SOL_SOCKET, SO_RCVBUF, (char *)&hold,
+ sizeof(hold));
+ if (uid == 0)
+ (void)setsockopt(s, SOL_SOCKET, SO_SNDBUF, (char *)&hold,
+ sizeof(hold));
+
+ if (to->sin_family == AF_INET) {
+ (void)printf("PING %s (%s)", hostname,
+ inet_ntoa(to->sin_addr));
+ if (source)
+ (void)printf(" from %s", shostname);
+ if (sweepmax)
+ (void)printf(": (%d ... %d) data bytes\n",
+ sweepmin, sweepmax);
+ else
+ (void)printf(": %d data bytes\n", datalen);
+
+ } else {
+ if (sweepmax)
+ (void)printf("PING %s: (%d ... %d) data bytes\n",
+ hostname, sweepmin, sweepmax);
+ else
+ (void)printf("PING %s: %d data bytes\n", hostname, datalen);
+ }
+
+ /*
+ * Use sigaction() instead of signal() to get unambiguous semantics,
+ * in particular with SA_RESTART not set.
+ */
+
+ sigemptyset(&si_sa.sa_mask);
+ si_sa.sa_flags = 0;
+
+ si_sa.sa_handler = stopit;
+ if (sigaction(SIGINT, &si_sa, 0) == -1) {
+ err(&globals->exit_jmp, EX_OSERR, "sigaction SIGINT");
+ }
+
+#ifdef SIGINFO
+ si_sa.sa_handler = status;
+ if (sigaction(SIGINFO, &si_sa, 0) == -1) {
+ err(EX_OSERR, "sigaction");
+ }
+#endif
+
+ if (alarmtimeout > 0) {
+ si_sa.sa_handler = stopit;
+ if (sigaction(SIGALRM, &si_sa, 0) == -1)
+ err(&globals->exit_jmp, EX_OSERR, "sigaction SIGALRM");
+ }
+
+ bzero(&msg, sizeof(msg));
+ msg.msg_name = (caddr_t)&from;
+ msg.msg_iov = &iov;
+ msg.msg_iovlen = 1;
+#ifdef SO_TIMESTAMP
+ msg.msg_control = (caddr_t)ctrl;
+#endif
+ iov.iov_base = packet_;
+ iov.iov_len = IP_MAXPACKET;
+
+ if (preload == 0)
+ pinger(); /* send the first ping */
+ else {
+ if (npackets != 0 && preload > npackets)
+ preload = npackets;
+ while (preload--) /* fire off them quickies */
+ pinger();
+ }
+ (void)gettimeofday(&last, NULL);
+
+ if (options_ & F_FLOOD) {
+ intvl.tv_sec = 0;
+ intvl.tv_usec = 10000;
+ } else {
+ intvl.tv_sec = interval / 1000;
+ intvl.tv_usec = interval % 1000 * 1000;
+ }
+
+ almost_done = 0;
+ while (!finish_up) {
+ struct timeval now, timeout;
+ fd_set rfds;
+ int cc, n;
+
+ check_status();
+ if ((unsigned)s >= FD_SETSIZE)
+ errx(&globals->exit_jmp, EX_OSERR, "descriptor too large");
+ FD_ZERO(&rfds);
+ FD_SET(s, &rfds);
+ (void)gettimeofday(&now, NULL);
+ timeout.tv_sec = last.tv_sec + intvl.tv_sec - now.tv_sec;
+ timeout.tv_usec = last.tv_usec + intvl.tv_usec - now.tv_usec;
+ while (timeout.tv_usec < 0) {
+ timeout.tv_usec += 1000000;
+ timeout.tv_sec--;
+ }
+ while (timeout.tv_usec >= 1000000) {
+ timeout.tv_usec -= 1000000;
+ timeout.tv_sec++;
+ }
+ if (timeout.tv_sec < 0)
+ timeout.tv_sec = timeout.tv_usec = 0;
+ n = select(s + 1, &rfds, NULL, NULL, &timeout);
+ if (n < 0)
+ continue; /* Must be EINTR. */
+ if (n == 1) {
+ struct timeval *tv = NULL;
+#ifdef SO_TIMESTAMP
+ struct cmsghdr *cmsg = (struct cmsghdr *)&ctrl;
+
+ msg.msg_controllen = sizeof(ctrl);
+#endif
+
+ bzero(&msg, sizeof(msg));
+ msg.msg_name = (caddr_t)&from;
+ msg.msg_iov = &iov;
+ msg.msg_iovlen = 1;
+#ifdef SO_TIMESTAMP
+ msg.msg_control = (caddr_t)ctrl;
+#endif
+ iov.iov_base = packet_;
+ iov.iov_len = IP_MAXPACKET;
+
+ msg.msg_namelen = sizeof(from);
+ if ((cc = recvmsg(s, &msg, 0)) < 0) {
+ if (errno == EINTR)
+ continue;
+ warn("recvmsg");
+ continue;
+ }
+#ifdef SO_TIMESTAMP
+ if (cmsg->cmsg_level == SOL_SOCKET &&
+ cmsg->cmsg_type == SCM_TIMESTAMP &&
+ cmsg->cmsg_len == CMSG_LEN(sizeof *tv)) {
+ /* Copy to avoid alignment problems: */
+ memcpy(&now, CMSG_DATA(cmsg), sizeof(now));
+ tv = &now;
+ }
+#endif
+ if (tv == NULL) {
+ (void)gettimeofday(&now, NULL);
+ tv = &now;
+ }
+ pr_pack((char *)packet_, cc, &from, tv);
+ if ((options_ & F_ONCE && nreceived) ||
+ (npackets && nreceived >= npackets))
+ break;
+ }
+ if (n == 0 || options_ & F_FLOOD) {
+ if (sweepmax && sntransmitted == snpackets) {
+ for (i = 0; i < sweepincr ; ++i)
+ *datap++ = i;
+ datalen += sweepincr;
+ if (datalen > sweepmax)
+ break;
+ send_len = icmp_len + datalen;
+ sntransmitted = 0;
+ }
+ if (!npackets || ntransmitted < npackets)
+ pinger();
+ else {
+ if (almost_done)
+ break;
+ almost_done = 1;
+ intvl.tv_usec = 0;
+ if (nreceived) {
+ intvl.tv_sec = 2 * tmax / 1000;
+ if (!intvl.tv_sec)
+ intvl.tv_sec = 1;
+ } else {
+ intvl.tv_sec = waittime / 1000;
+ intvl.tv_usec = waittime % 1000 * 1000;
+ }
+ }
+ (void)gettimeofday(&last, NULL);
+ if (ntransmitted - nreceived - 1 > nmissedmax) {
+ nmissedmax = ntransmitted - nreceived - 1;
+ if (options_ & F_MISSED)
+ (void)write(STDOUT_FILENO, &BBELL, 1);
+ }
+ }
+ }
+ finish();
+#ifdef __rtems__
+ /* RTEMS shell programs return -- they do not exit */
+ if (nreceived)
+ return(0);
+ else
+ return(2);
+#endif
+ /* NOTREACHED */
+ exit(0); /* Make the compiler happy */
+}
+
+/*
+ * stopit --
+ * Set the global bit that causes the main loop to quit.
+ * Do NOT call finish() from here, since finish() does far too much
+ * to be called from a signal handler.
+ */
+void
+stopit(sig)
+ int sig __unused;
+{
+#if !__rtems__
+ /*
+ * When doing reverse DNS lookups, the finish_up flag might not
+ * be noticed for a while. Just exit if we get a second SIGINT.
+ */
+ if (!(options_ & F_NUMERIC) && finish_up)
+ _exit(nreceived ? 0 : 2);
+ finish_up = 1;
+#endif
+}
+
+/*
+ * pinger --
+ * Compose and transmit an ICMP ECHO REQUEST packet. The IP packet
+ * will be added on by the kernel. The ID field is our UNIX process ID,
+ * and the sequence number is an ascending integer. The first TIMEVAL_LEN
+ * bytes of the data portion are used to hold a UNIX "timeval" struct in
+ * host byte-order, to compute the round-trip time.
+ */
+static void
+g_pinger(globals)
+ rtems_shell_globals_t* globals;
+{
+ struct timeval now;
+ struct tv32 tv32;
+ struct ip *ip;
+ struct icmp *icp;
+ int cc, i;
+ u_char *packet;
+
+ packet = outpack;
+ icp = (struct icmp *)outpack;
+ icp->icmp_type = icmp_type_;
+ icp->icmp_code = 0;
+ icp->icmp_cksum = 0;
+ icp->icmp_seq = htons(ntransmitted);
+ icp->icmp_id = ident; /* ID */
+
+ CLR(ntransmitted % mx_dup_ck);
+
+ if ((options_ & F_TIME) || timing) {
+ (void)gettimeofday(&now, NULL);
+
+ tv32.tv32_sec = htonl(now.tv_sec);
+ tv32.tv32_usec = htonl(now.tv_usec);
+ if (options_ & F_TIME)
+ icp->icmp_otime = htonl((now.tv_sec % (24*60*60))
+ * 1000 + now.tv_usec / 1000);
+ if (timing)
+ bcopy((void *)&tv32,
+ (void *)&outpack[ICMP_MINLEN + phdr_len],
+ sizeof(tv32));
+ }
+
+ cc = ICMP_MINLEN + phdr_len + datalen;
+
+ /* compute ICMP checksum here */
+ icp->icmp_cksum = in_cksum((u_short *)icp, cc);
+
+ if (options_ & F_HDRINCL) {
+ cc += sizeof(struct ip);
+ ip = (struct ip *)outpackhdr;
+ ip->ip_len = cc;
+ ip->ip_sum = in_cksum((u_short *)outpackhdr, cc);
+ packet = outpackhdr;
+ }
+ i = sendto(s, (char *)packet, cc, 0, (struct sockaddr *)&whereto,
+ sizeof(whereto));
+
+ if (i < 0 || i != cc) {
+ if (i < 0) {
+ if (options_ & F_FLOOD && errno == ENOBUFS) {
+ usleep(FLOOD_BACKOFF);
+ return;
+ }
+ warn("sendto");
+ } else {
+ warn("%s: partial write: %d of %d bytes",
+ hostname, i, cc);
+ }
+ }
+ ntransmitted++;
+ sntransmitted++;
+ if (!(options_ & F_QUIET) && options_ & F_FLOOD)
+ (void)write(STDOUT_FILENO, &DOT, 1);
+}
+
+/*
+ * pr_pack --
+ * Print out the packet, if it came from us. This logic is necessary
+ * because ALL readers of the ICMP socket get a copy of ALL ICMP packets
+ * which arrive ('tis only fair). This permits multiple copies of this
+ * program to be run without having intermingled output (or statistics!).
+ */
+static void
+g_pr_pack(buf, cc, from, tv, globals)
+ char *buf;
+ int cc;
+ struct sockaddr_in *from;
+ struct timeval *tv;
+ rtems_shell_globals_t* globals;
+{
+ struct in_addr ina;
+ u_char *cp, *dp;
+ struct icmp *icp;
+ struct ip *ip;
+ const void *tp;
+ double triptime;
+ int dupflag, hlen, i, j, recv_len, seq;
+#if !__rtems__
+ static int old_rrlen;
+ static char old_rr[MAX_IPOPTLEN];
+#endif
+
+ /* Check the IP header */
+ ip = (struct ip *)buf;
+ hlen = ip->ip_hl << 2;
+ recv_len = cc;
+ if (cc < hlen + ICMP_MINLEN) {
+ if (options_ & F_VERBOSE)
+ warn("packet too short (%d bytes) from %s", cc,
+ inet_ntoa(from->sin_addr));
+ return;
+ }
+
+ /* Now the ICMP part */
+ cc -= hlen;
+ icp = (struct icmp *)(buf + hlen);
+ if (icp->icmp_type == icmp_type_rsp) {
+ if (icp->icmp_id != ident)
+ return; /* 'Twas not our ECHO */
+ ++nreceived;
+ triptime = 0.0;
+ if (timing) {
+ struct timeval tv1;
+ struct tv32 tv32;
+#ifndef icmp_data
+ tp = &icp->icmp_ip;
+#else
+ tp = icp->icmp_data;
+#endif
+ tp = (const char *)tp + phdr_len;
+
+ if (cc - ICMP_MINLEN - phdr_len >= (int) sizeof(tv1)) {
+ /* Copy to avoid alignment problems: */
+ memcpy(&tv32, tp, sizeof(tv32));
+ tv1.tv_sec = ntohl(tv32.tv32_sec);
+ tv1.tv_usec = ntohl(tv32.tv32_usec);
+ tvsub(tv, &tv1);
+ triptime = ((double)tv->tv_sec) * 1000.0 +
+ ((double)tv->tv_usec) / 1000.0;
+ tsum += triptime;
+ tsumsq += triptime * triptime;
+ if (triptime < tmin)
+ tmin = triptime;
+ if (triptime > tmax)
+ tmax = triptime;
+ } else
+ timing = 0;
+ }
+
+ seq = ntohs(icp->icmp_seq);
+
+ if (TST(seq % mx_dup_ck)) {
+ ++nrepeats;
+ --nreceived;
+ dupflag = 1;
+ } else {
+ SET(seq % mx_dup_ck);
+ dupflag = 0;
+ }
+
+ if (options_ & F_QUIET)
+ return;
+
+ if (options_ & F_WAITTIME && triptime > waittime) {
+ ++nrcvtimeout;
+ return;
+ }
+
+ if (options_ & F_FLOOD)
+ (void)write(STDOUT_FILENO, &BSPACE, 1);
+ else {
+ (void)printf("%d bytes from %s: icmp_seq=%u", cc,
+ inet_ntoa(*(struct in_addr *)&from->sin_addr.s_addr),
+ seq);
+ (void)printf(" ttl=%d", ip->ip_ttl);
+ if (timing)
+ (void)printf(" time=%.3f ms", triptime);
+ if (dupflag)
+ (void)printf(" (DUP!)");
+ if (options_ & F_AUDIBLE)
+ (void)write(STDOUT_FILENO, &BBELL, 1);
+ if (options_ & F_MASK) {
+ /* Just prentend this cast isn't ugly */
+ (void)printf(" mask=%s",
+ pr_addr(*(struct in_addr *)&(icp->icmp_mask)));
+ }
+ if (options_ & F_TIME) {
+ (void)printf(" tso=%s", pr_ntime(icp->icmp_otime));
+ (void)printf(" tsr=%s", pr_ntime(icp->icmp_rtime));
+ (void)printf(" tst=%s", pr_ntime(icp->icmp_ttime));
+ }
+ if (recv_len != send_len) {
+ (void)printf(
+ "\nwrong total length %d instead of %d",
+ recv_len, send_len);
+ }
+ /* check the data */
+ cp = (u_char*)&icp->icmp_data[phdr_len];
+ dp = &outpack[ICMP_MINLEN + phdr_len];
+ cc -= ICMP_MINLEN + phdr_len;
+ i = 0;
+ if (timing) { /* don't check variable timestamp */
+ cp += TIMEVAL_LEN;
+ dp += TIMEVAL_LEN;
+ cc -= TIMEVAL_LEN;
+ i += TIMEVAL_LEN;
+ }
+ for (; i < datalen && cc > 0; ++i, ++cp, ++dp, --cc) {
+ if (*cp != *dp) {
+ (void)printf("\nwrong data byte #%d should be 0x%x but was 0x%x",
+ i, *dp, *cp);
+ (void)printf("\ncp:");
+ cp = (u_char*)&icp->icmp_data[0];
+ for (i = 0; i < datalen; ++i, ++cp) {
+ if ((i % 16) == 8)
+ (void)printf("\n\t");
+ (void)printf("%2x ", *cp);
+ }
+ (void)printf("\ndp:");
+ cp = &outpack[ICMP_MINLEN];
+ for (i = 0; i < datalen; ++i, ++cp) {
+ if ((i % 16) == 8)
+ (void)printf("\n\t");
+ (void)printf("%2x ", *cp);
+ }
+ break;
+ }
+ }
+ }
+ } else {
+ /*
+ * We've got something other than an ECHOREPLY.
+ * See if it's a reply to something that we sent.
+ * We can compare IP destination, protocol,
+ * and ICMP type and ID.
+ *
+ * Only print all the error messages if we are running
+ * as root to avoid leaking information not normally
+ * available to those not running as root.
+ */
+#ifndef icmp_data
+ struct ip *oip = &icp->icmp_ip;
+#else
+ struct ip *oip = (struct ip *)icp->icmp_data;
+#endif
+ struct icmp *oicmp = (struct icmp *)(oip + 1);
+
+ if (((options_ & F_VERBOSE) && uid == 0) ||
+ (!(options_ & F_QUIET2) &&
+ (oip->ip_dst.s_addr == whereto.sin_addr.s_addr) &&
+ (oip->ip_p == IPPROTO_ICMP) &&
+ (oicmp->icmp_type == ICMP_ECHO) &&
+ (oicmp->icmp_id == ident))) {
+ (void)printf("%d bytes from %s: ", cc,
+ pr_addr(from->sin_addr));
+ pr_icmph(icp);
+ } else
+ return;
+ }
+
+ /* Display any IP options */
+ cp = (u_char *)buf + sizeof(struct ip);
+
+ for (; hlen > (int)sizeof(struct ip); --hlen, ++cp)
+ switch (*cp) {
+ case IPOPT_EOL:
+ hlen = 0;
+ break;
+ case IPOPT_LSRR:
+ case IPOPT_SSRR:
+ (void)printf(*cp == IPOPT_LSRR ?
+ "\nLSRR: " : "\nSSRR: ");
+ j = cp[IPOPT_OLEN] - IPOPT_MINOFF + 1;
+ hlen -= 2;
+ cp += 2;
+ if (j >= INADDR_LEN &&
+ j <= hlen - (int)sizeof(struct ip)) {
+ for (;;) {
+ bcopy(++cp, &ina.s_addr, INADDR_LEN);
+ if (ina.s_addr == 0)
+ (void)printf("\t0.0.0.0");
+ else
+ (void)printf("\t%s",
+ pr_addr(ina));
+ hlen -= INADDR_LEN;
+ cp += INADDR_LEN - 1;
+ j -= INADDR_LEN;
+ if (j < INADDR_LEN)
+ break;
+ (void)putchar('\n');
+ }
+ } else
+ (void)printf("\t(truncated route)\n");
+ break;
+ case IPOPT_RR:
+ j = cp[IPOPT_OLEN]; /* get length */
+ i = cp[IPOPT_OFFSET]; /* and pointer */
+ hlen -= 2;
+ cp += 2;
+ if (i > j)
+ i = j;
+ i = i - IPOPT_MINOFF + 1;
+ if (i < 0 || i > (hlen - (int)sizeof(struct ip))) {
+ old_rrlen = 0;
+ continue;
+ }
+ if (i == old_rrlen
+ && !bcmp((char *)cp, old_rr, i)
+ && !(options_ & F_FLOOD)) {
+ (void)printf("\t(same route)");
+ hlen -= i;
+ cp += i;
+ break;
+ }
+ old_rrlen = i;
+ bcopy((char *)cp, old_rr, i);
+ (void)printf("\nRR: ");
+ if (i >= INADDR_LEN &&
+ i <= hlen - (int)sizeof(struct ip)) {
+ for (;;) {
+ bcopy(++cp, &ina.s_addr, INADDR_LEN);
+ if (ina.s_addr == 0)
+ (void)printf("\t0.0.0.0");
+ else
+ (void)printf("\t%s",
+ pr_addr(ina));
+ hlen -= INADDR_LEN;
+ cp += INADDR_LEN - 1;
+ i -= INADDR_LEN;
+ if (i < INADDR_LEN)
+ break;
+ (void)putchar('\n');
+ }
+ } else
+ (void)printf("\t(truncated route)");
+ break;
+ case IPOPT_NOP:
+ (void)printf("\nNOP");
+ break;
+ default:
+ (void)printf("\nunknown option %x", *cp);
+ break;
+ }
+ if (!(options_ & F_FLOOD)) {
+ (void)putchar('\n');
+ (void)fflush(stdout);
+ }
+}
+
+/*
+ * in_cksum --
+ * Checksum routine for Internet Protocol family headers (C Version)
+ */
+u_short
+in_cksum(addr, len)
+ u_short *addr;
+ int len;
+{
+ int nleft, sum;
+ u_short *w;
+ union {
+ u_short us;
+ u_char uc[2];
+ } last;
+ u_short answer;
+
+ nleft = len;
+ sum = 0;
+ w = addr;
+
+ /*
+ * Our algorithm is simple, using a 32 bit accumulator (sum), we add
+ * sequential 16 bit words to it, and at the end, fold back all the
+ * carry bits from the top 16 bits into the lower 16 bits.
+ */
+ while (nleft > 1) {
+ sum += *w++;
+ nleft -= 2;
+ }
+
+ /* mop up an odd byte, if necessary */
+ if (nleft == 1) {
+ last.uc[0] = *(u_char *)w;
+ last.uc[1] = 0;
+ sum += last.us;
+ }
+
+ /* add back carry outs from top 16 bits to low 16 bits */
+ sum = (sum >> 16) + (sum & 0xffff); /* add hi 16 to low 16 */
+ sum += (sum >> 16); /* add carry */
+ answer = ~sum; /* truncate to 16 bits */
+ return(answer);
+}
+
+/*
+ * tvsub --
+ * Subtract 2 timeval structs: out = out - in. Out is assumed to
+ * be >= in.
+ */
+static void
+tvsub(out, in)
+ struct timeval *out, *in;
+{
+
+ if ((out->tv_usec -= in->tv_usec) < 0) {
+ --out->tv_sec;
+ out->tv_usec += 1000000;
+ }
+ out->tv_sec -= in->tv_sec;
+}
+
+/*
+ * status --
+ * Print out statistics when SIGINFO is received.
+ */
+
+static void
+status(sig)
+ int sig __unused;
+{
+#if !__rtems__
+ siginfo_p = 1;
+#endif
+}
+
+static void
+g_check_status(globals)
+ rtems_shell_globals_t* globals;
+{
+ if (siginfo_p) {
+ siginfo_p = 0;
+ (void)fprintf(stderr, "\r%ld/%ld packets received (%.1f%%)",
+ nreceived, ntransmitted,
+ ntransmitted ? nreceived * 100.0 / ntransmitted : 0.0);
+ if (nreceived && timing)
+ (void)fprintf(stderr, " %.3f min / %.3f avg / %.3f max",
+ tmin, tsum / (nreceived + nrepeats), tmax);
+ (void)fprintf(stderr, "\n");
+ }
+}
+
+/*
+ * finish --
+ * Print out statistics, and give up.
+ */
+static void
+g_finish(globals)
+ rtems_shell_globals_t* globals;
+{
+
+ (void)signal(SIGINT, SIG_IGN);
+ (void)signal(SIGALRM, SIG_IGN);
+ (void)putchar('\n');
+ (void)fflush(stdout);
+ (void)printf("--- %s ping statistics ---\n", hostname);
+ (void)printf("%ld packets transmitted, ", ntransmitted);
+ (void)printf("%ld packets received, ", nreceived);
+ if (nrepeats)
+ (void)printf("+%ld duplicates, ", nrepeats);
+ if (ntransmitted) {
+ if (nreceived > ntransmitted)
+ (void)printf("-- somebody's printing up packets!");
+ else
+ (void)printf("%.1f%% packet loss",
+ ((ntransmitted - nreceived) * 100.0) /
+ ntransmitted);
+ }
+ if (nrcvtimeout)
+ (void)printf(", %ld packets out of wait time", nrcvtimeout);
+ (void)putchar('\n');
+ if (nreceived && timing) {
+ double n = nreceived + nrepeats;
+ double avg = tsum / n;
+ double vari = tsumsq / n - avg * avg;
+ (void)printf(
+ "round-trip min/avg/max/stddev = %.3f/%.3f/%.3f/%.3f ms\n",
+ tmin, avg, tmax, sqrt(vari));
+ }
+ if (nreceived)
+ exit(0);
+ else
+ exit(2);
+ while (1);
+}
+
+#ifdef notdef
+static char *ttab[] = {
+ "Echo Reply", /* ip + seq + udata */
+ "Dest Unreachable", /* net, host, proto, port, frag, sr + IP */
+ "Source Quench", /* IP */
+ "Redirect", /* redirect type, gateway, + IP */
+ "Echo",
+ "Time Exceeded", /* transit, frag reassem + IP */
+ "Parameter Problem", /* pointer + IP */
+ "Timestamp", /* id + seq + three timestamps */
+ "Timestamp Reply", /* " */
+ "Info Request", /* id + sq */
+ "Info Reply" /* " */
+};
+#endif
+
+/*
+ * pr_icmph --
+ * Print a descriptive string about an ICMP header.
+ */
+static void
+pr_icmph(icp)
+ struct icmp *icp;
+{
+
+ switch(icp->icmp_type) {
+ case ICMP_ECHOREPLY:
+ (void)printf("Echo Reply\n");
+ /* XXX ID + Seq + Data */
+ break;
+ case ICMP_UNREACH:
+ switch(icp->icmp_code) {
+ case ICMP_UNREACH_NET:
+ (void)printf("Destination Net Unreachable\n");
+ break;
+ case ICMP_UNREACH_HOST:
+ (void)printf("Destination Host Unreachable\n");
+ break;
+ case ICMP_UNREACH_PROTOCOL:
+ (void)printf("Destination Protocol Unreachable\n");
+ break;
+ case ICMP_UNREACH_PORT:
+ (void)printf("Destination Port Unreachable\n");
+ break;
+ case ICMP_UNREACH_NEEDFRAG:
+ (void)printf("frag needed and DF set (MTU %d)\n",
+ ntohs(icp->icmp_nextmtu));
+ break;
+ case ICMP_UNREACH_SRCFAIL:
+ (void)printf("Source Route Failed\n");
+ break;
+ case ICMP_UNREACH_FILTER_PROHIB:
+ (void)printf("Communication prohibited by filter\n");
+ break;
+ default:
+ (void)printf("Dest Unreachable, Bad Code: %d\n",
+ icp->icmp_code);
+ break;
+ }
+ /* Print returned IP header information */
+#ifndef icmp_data
+ pr_retip(&icp->icmp_ip);
+#else
+ pr_retip((struct ip *)icp->icmp_data);
+#endif
+ break;
+ case ICMP_SOURCEQUENCH:
+ (void)printf("Source Quench\n");
+#ifndef icmp_data
+ pr_retip(&icp->icmp_ip);
+#else
+ pr_retip((struct ip *)icp->icmp_data);
+#endif
+ break;
+ case ICMP_REDIRECT:
+ switch(icp->icmp_code) {
+ case ICMP_REDIRECT_NET:
+ (void)printf("Redirect Network");
+ break;
+ case ICMP_REDIRECT_HOST:
+ (void)printf("Redirect Host");
+ break;
+ case ICMP_REDIRECT_TOSNET:
+ (void)printf("Redirect Type of Service and Network");
+ break;
+ case ICMP_REDIRECT_TOSHOST:
+ (void)printf("Redirect Type of Service and Host");
+ break;
+ default:
+ (void)printf("Redirect, Bad Code: %d", icp->icmp_code);
+ break;
+ }
+ (void)printf("(New addr: %s)\n", inet_ntoa(icp->icmp_gwaddr));
+#ifndef icmp_data
+ pr_retip(&icp->icmp_ip);
+#else
+ pr_retip((struct ip *)icp->icmp_data);
+#endif
+ break;
+ case ICMP_ECHO:
+ (void)printf("Echo Request\n");
+ /* XXX ID + Seq + Data */
+ break;
+ case ICMP_TIMXCEED:
+ switch(icp->icmp_code) {
+ case ICMP_TIMXCEED_INTRANS:
+ (void)printf("Time to live exceeded\n");
+ break;
+ case ICMP_TIMXCEED_REASS:
+ (void)printf("Frag reassembly time exceeded\n");
+ break;
+ default:
+ (void)printf("Time exceeded, Bad Code: %d\n",
+ icp->icmp_code);
+ break;
+ }
+#ifndef icmp_data
+ pr_retip(&icp->icmp_ip);
+#else
+ pr_retip((struct ip *)icp->icmp_data);
+#endif
+ break;
+ case ICMP_PARAMPROB:
+ (void)printf("Parameter problem: pointer = 0x%02x\n",
+ icp->icmp_hun.ih_pptr);
+#ifndef icmp_data
+ pr_retip(&icp->icmp_ip);
+#else
+ pr_retip((struct ip *)icp->icmp_data);
+#endif
+ break;
+ case ICMP_TSTAMP:
+ (void)printf("Timestamp\n");
+ /* XXX ID + Seq + 3 timestamps */
+ break;
+ case ICMP_TSTAMPREPLY:
+ (void)printf("Timestamp Reply\n");
+ /* XXX ID + Seq + 3 timestamps */
+ break;
+ case ICMP_IREQ:
+ (void)printf("Information Request\n");
+ /* XXX ID + Seq */
+ break;
+ case ICMP_IREQREPLY:
+ (void)printf("Information Reply\n");
+ /* XXX ID + Seq */
+ break;
+ case ICMP_MASKREQ:
+ (void)printf("Address Mask Request\n");
+ break;
+ case ICMP_MASKREPLY:
+ (void)printf("Address Mask Reply\n");
+ break;
+ case ICMP_ROUTERADVERT:
+ (void)printf("Router Advertisement\n");
+ break;
+ case ICMP_ROUTERSOLICIT:
+ (void)printf("Router Solicitation\n");
+ break;
+ default:
+ (void)printf("Bad ICMP type: %d\n", icp->icmp_type);
+ }
+}
+
+/*
+ * pr_iph --
+ * Print an IP header with options.
+ */
+static void
+pr_iph(ip)
+ struct ip *ip;
+{
+ u_char *cp;
+ int hlen;
+
+ hlen = ip->ip_hl << 2;
+ cp = (u_char *)ip + 20; /* point to options */
+
+ (void)printf("Vr HL TOS Len ID Flg off TTL Pro cks Src Dst\n");
+ (void)printf(" %1x %1x %02x %04x %04x",
+ ip->ip_v, ip->ip_hl, ip->ip_tos, ntohs(ip->ip_len),
+ ntohs(ip->ip_id));
+ (void)printf(" %1lx %04lx",
+ (u_long) (ntohl(ip->ip_off) & 0xe000) >> 13,
+ (u_long) ntohl(ip->ip_off) & 0x1fff);
+ (void)printf(" %02x %02x %04x", ip->ip_ttl, ip->ip_p,
+ ntohs(ip->ip_sum));
+ (void)printf(" %s ", inet_ntoa(*(struct in_addr *)&ip->ip_src.s_addr));
+ (void)printf(" %s ", inet_ntoa(*(struct in_addr *)&ip->ip_dst.s_addr));
+ /* dump any option bytes */
+ while (hlen-- > 20) {
+ (void)printf("%02x", *cp++);
+ }
+ (void)putchar('\n');
+}
+
+/*
+ * pr_addr --
+ * Return an ascii host address as a dotted quad and optionally with
+ * a hostname.
+ */
+static char *
+g_pr_addr(ina, globals)
+ struct in_addr ina;
+ rtems_shell_globals_t* globals;
+{
+ struct hostent *hp;
+ static char buf[16 + 3 + MAXHOSTNAMELEN];
+
+ if ((options_ & F_NUMERIC) ||
+ !(hp = gethostbyaddr((char *)&ina, 4, AF_INET)))
+ return inet_ntoa(ina);
+ else
+ (void)snprintf(buf, sizeof(buf), "%s (%s)", hp->h_name,
+ inet_ntoa(ina));
+ return(buf);
+}
+
+/*
+ * pr_retip --
+ * Dump some info on a returned (via ICMP) IP packet.
+ */
+static void
+pr_retip(ip)
+ struct ip *ip;
+{
+ u_char *cp;
+ int hlen;
+
+ pr_iph(ip);
+ hlen = ip->ip_hl << 2;
+ cp = (u_char *)ip + hlen;
+
+ if (ip->ip_p == 6)
+ (void)printf("TCP: from port %u, to port %u (decimal)\n",
+ (*cp * 256 + *(cp + 1)), (*(cp + 2) * 256 + *(cp + 3)));
+ else if (ip->ip_p == 17)
+ (void)printf("UDP: from port %u, to port %u (decimal)\n",
+ (*cp * 256 + *(cp + 1)), (*(cp + 2) * 256 + *(cp + 3)));
+}
+
+static char *
+pr_ntime (n_time timestamp)
+{
+ static char buf[10];
+ int hour, min, sec;
+
+ sec = ntohl(timestamp) / 1000;
+ hour = sec / 60 / 60;
+ min = (sec % (60 * 60)) / 60;
+ sec = (sec % (60 * 60)) % 60;
+
+ (void)snprintf(buf, sizeof(buf), "%02d:%02d:%02d", hour, min, sec);
+
+ return (buf);
+}
+
+static void
+g_fill(bp, patp, globals)
+ char *bp, *patp;
+ rtems_shell_globals_t* globals;
+{
+ char *cp;
+ int pat[16];
+ u_int ii, jj, kk;
+
+ for (cp = patp; *cp; cp++) {
+ if (!isxdigit(*cp))
+ errx(&globals->exit_jmp, EX_USAGE,
+ "patterns must be specified as hex digits");
+
+ }
+ ii = sscanf(patp,
+ "%2x%2x%2x%2x%2x%2x%2x%2x%2x%2x%2x%2x%2x%2x%2x%2x",
+ &pat[0], &pat[1], &pat[2], &pat[3], &pat[4], &pat[5], &pat[6],
+ &pat[7], &pat[8], &pat[9], &pat[10], &pat[11], &pat[12],
+ &pat[13], &pat[14], &pat[15]);
+
+ if (ii > 0)
+ for (kk = 0; kk <= maxpayload - (TIMEVAL_LEN + ii); kk += ii)
+ for (jj = 0; jj < ii; ++jj)
+ bp[jj + kk] = pat[jj];
+ if (!(options_ & F_QUIET)) {
+ (void)printf("PATTERN: 0x");
+ for (jj = 0; jj < ii; ++jj)
+ (void)printf("%02x", bp[jj] & 0xFF);
+ (void)printf("\n");
+ }
+}
+
+#if defined(IPSEC) && defined(IPSEC_POLICY_IPSEC)
+#define SECOPT " [-P policy]"
+#else
+#define SECOPT ""
+#endif
+static void
+g_usage(globals)
+ rtems_shell_globals_t* globals;
+{
+ (void)fprintf(stderr, "%s\n%s\n%s\n%s\n%s\n%s\n%s\n%s\n",
+"usage: ping [-AaDdfnoQqRrv] [-c count] [-G sweepmaxsize] [-g sweepminsize]",
+" [-h sweepincrsize] [-i wait] [-l preload] [-M mask | time] [-m ttl]",
+" " SECOPT " [-p pattern] [-S src_addr] [-s packetsize] [-t timeout]",
+" [-W waittime] [-z tos] host",
+" ping [-AaDdfLnoQqRrv] [-c count] [-I iface] [-i wait] [-l preload]",
+" [-M mask | time] [-m ttl]" SECOPT " [-p pattern] [-S src_addr]",
+" [-s packetsize] [-T ttl] [-t timeout] [-W waittime]",
+" [-z tos] mcast-group");
+ exit(EX_USAGE);
+ while (1);
+}
+
+#if __rtems__
+ #include <rtems/shell.h>
+
+ rtems_shell_cmd_t rtems_shell_PING_Command = {
+ "ping", /* name */
+ "ping [args]", /* usage */
+ "network", /* topic */
+ rtems_shell_main_ping, /* command */
+ NULL, /* alias */
+ NULL /* next */
+ };
+#endif
diff --git a/cpukit/libmisc/shell/shellconfig.h b/cpukit/libmisc/shell/shellconfig.h
index 2cdfcc5..988bf88 100644
--- a/cpukit/libmisc/shell/shellconfig.h
+++ b/cpukit/libmisc/shell/shellconfig.h
@@ -84,6 +84,7 @@ extern rtems_shell_cmd_t rtems_shell_MALLOC_INFO_Command;
extern rtems_shell_cmd_t rtems_shell_IFCONFIG_Command;
extern rtems_shell_cmd_t rtems_shell_ROUTE_Command;
extern rtems_shell_cmd_t rtems_shell_NETSTATS_Command;
+ extern rtems_shell_cmd_t rtems_shell_PING_Command;
#endif
extern rtems_shell_cmd_t *rtems_shell_Initial_commands[];
@@ -441,6 +442,12 @@ extern rtems_shell_alias_t *rtems_shell_Initial_aliases[];
defined(CONFIGURE_SHELL_COMMAND_NETSTATS)
&rtems_shell_NETSTATS_Command,
#endif
+
+ #if (defined(CONFIGURE_SHELL_COMMANDS_ALL_NETWORKING) && \
+ !defined(CONFIGURE_SHELL_NO_COMMAND_PING)) || \
+ defined(CONFIGURE_SHELL_COMMAND_PING)
+ &rtems_shell_PING_Command,
+ #endif
#endif
/* Miscanellous shell commands */
diff --git a/cpukit/libmisc/shell/sysexits.h b/cpukit/libmisc/shell/sysexits.h
new file mode 100644
index 0000000..50827f1
--- /dev/null
+++ b/cpukit/libmisc/shell/sysexits.h
@@ -0,0 +1,116 @@
+/*
+ * Copyright (c) 1987, 1993
+ * The Regents of the University of California. 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 University 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 REGENTS 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 REGENTS 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.
+ *
+ * @(#)sysexits.h 8.1 (Berkeley) 6/2/93
+ *
+ * $FreeBSD: release/9.1.0/include/sysexits.h 203964 2010-02-16 19:39:50Z imp $
+ */
+
+#ifndef _SYSEXITS_H_
+#define _SYSEXITS_H_
+
+/*
+ * SYSEXITS.H -- Exit status codes for system programs.
+ *
+ * This include file attempts to categorize possible error
+ * exit statuses for system programs, notably delivermail
+ * and the Berkeley network.
+ *
+ * Error numbers begin at EX__BASE to reduce the possibility of
+ * clashing with other exit statuses that random programs may
+ * already return. The meaning of the codes is approximately
+ * as follows:
+ *
+ * EX_USAGE -- The command was used incorrectly, e.g., with
+ * the wrong number of arguments, a bad flag, a bad
+ * syntax in a parameter, or whatever.
+ * EX_DATAERR -- The input data was incorrect in some way.
+ * This should only be used for user's data & not
+ * system files.
+ * EX_NOINPUT -- An input file (not a system file) did not
+ * exist or was not readable. This could also include
+ * errors like "No message" to a mailer (if it cared
+ * to catch it).
+ * EX_NOUSER -- The user specified did not exist. This might
+ * be used for mail addresses or remote logins.
+ * EX_NOHOST -- The host specified did not exist. This is used
+ * in mail addresses or network requests.
+ * EX_UNAVAILABLE -- A service is unavailable. This can occur
+ * if a support program or file does not exist. This
+ * can also be used as a catchall message when something
+ * you wanted to do doesn't work, but you don't know
+ * why.
+ * EX_SOFTWARE -- An internal software error has been detected.
+ * This should be limited to non-operating system related
+ * errors as possible.
+ * EX_OSERR -- An operating system error has been detected.
+ * This is intended to be used for such things as "cannot
+ * fork", "cannot create pipe", or the like. It includes
+ * things like getuid returning a user that does not
+ * exist in the passwd file.
+ * EX_OSFILE -- Some system file (e.g., /etc/passwd, /etc/utmp,
+ * etc.) does not exist, cannot be opened, or has some
+ * sort of error (e.g., syntax error).
+ * EX_CANTCREAT -- A (user specified) output file cannot be
+ * created.
+ * EX_IOERR -- An error occurred while doing I/O on some file.
+ * EX_TEMPFAIL -- temporary failure, indicating something that
+ * is not really an error. In sendmail, this means
+ * that a mailer (e.g.) could not create a connection,
+ * and the request should be reattempted later.
+ * EX_PROTOCOL -- the remote system returned something that
+ * was "not possible" during a protocol exchange.
+ * EX_NOPERM -- You did not have sufficient permission to
+ * perform the operation. This is not intended for
+ * file system problems, which should use NOINPUT or
+ * CANTCREAT, but rather for higher level permissions.
+ */
+
+#define EX_OK 0 /* successful termination */
+
+#define EX__BASE 64 /* base value for error messages */
+
+#define EX_USAGE 64 /* command line usage error */
+#define EX_DATAERR 65 /* data format error */
+#define EX_NOINPUT 66 /* cannot open input */
+#define EX_NOUSER 67 /* addressee unknown */
+#define EX_NOHOST 68 /* host name unknown */
+#define EX_UNAVAILABLE 69 /* service unavailable */
+#define EX_SOFTWARE 70 /* internal software error */
+#define EX_OSERR 71 /* system error (e.g., can't fork) */
+#define EX_OSFILE 72 /* critical OS file missing */
+#define EX_CANTCREAT 73 /* can't create (user) output file */
+#define EX_IOERR 74 /* input/output error */
+#define EX_TEMPFAIL 75 /* temp failure; user is invited to retry */
+#define EX_PROTOCOL 76 /* remote error in protocol */
+#define EX_NOPERM 77 /* permission denied */
+#define EX_CONFIG 78 /* configuration error */
+
+#define EX__MAX 78 /* maximum listed value */
+
+#endif /* !_SYSEXITS_H_ */
diff --git a/doc/shell/network.t b/doc/shell/network.t
index ec052dd..a5bd86a 100644
--- a/doc/shell/network.t
+++ b/doc/shell/network.t
@@ -14,6 +14,7 @@ The RTEMS shell has the following network commands:
@item @code{netstats} - obtain network statistics
@item @code{ifconfig} - configure a network interface
@item @code{route} - show or manipulate the IP routing table
+@item @code{ping} - ping a host or IP address
@end itemize
@@ -103,10 +104,10 @@ command to print the MBUF statistics:
************ MBUF STATISTICS ************
mbufs:2048 clusters: 128 free: 63
drops: 0 waits: 0 drains: 0
- free:1967 data:79 header:2 socket:0
- pcb:0 rtable:0 htable:0 atable:0
- soname:0 soopts:0 ftable:0 rights:0
- ifaddr:0 control:0 oobdata:0
+ free:1967 data:79 header:2 socket:0
+ pcb:0 rtable:0 htable:0 atable:0
+ soname:0 soopts:0 ftable:0 rights:0
+ ifaddr:0 control:0 oobdata:0
@end smallexample
The following is an example of using the @code{netstats}
@@ -117,14 +118,14 @@ command to print the print the interface statistics:
************ INTERFACE STATISTICS ************
***** eth1 *****
Ethernet Address: 00:04:9F:00:5B:21
-Address:192.168.1.244 Broadcast Address:192.168.1.255 Net mask:255.255.255.0
+Address:192.168.1.244 Broadcast Address:192.168.1.255 Net mask:255.255.255.0
Flags: Up Broadcast Running Active Multicast
-Send queue limit:50 length:1 Dropped:0
- Rx Interrupts:889 Not First:0 Not Last:0
- Giant:0 Non-octet:0
- Bad CRC:0 Overrun:0 Collision:0
- Tx Interrupts:867 Deferred:0 Late Collision:0
- Retransmit Limit:0 Underrun:0 Misaligned:0
+Send queue limit:50 length:1 Dropped:0
+ Rx Interrupts:889 Not First:0 Not Last:0
+ Giant:0 Non-octet:0
+ Bad CRC:0 Overrun:0 Collision:0
+ Tx Interrupts:867 Deferred:0 Late Collision:0
+ Retransmit Limit:0 Underrun:0 Misaligned:0
@end smallexample
The following is an example of using the @code{netstats}
@@ -190,7 +191,7 @@ command to print the TCP statistics:
@findex CONFIGURE_SHELL_NO_COMMAND_NETSTATS
@findex CONFIGURE_SHELL_COMMAND_NETSTATS
-This command is included in the default shell command set.
+This command is included in the default shell command set.
When building a custom command set, define
@code{CONFIGURE_SHELL_COMMAND_NETSTATS} to have this
command included.
@@ -260,14 +261,14 @@ The following is an example of how to use @code{ifconfig}:
************ INTERFACE STATISTICS ************
***** eth1 *****
Ethernet Address: 00:04:9F:00:5B:21
-Address:192.168.1.244 Broadcast Address:192.168.1.255 Net mask:255.255.255.0
+Address:192.168.1.244 Broadcast Address:192.168.1.255 Net mask:255.255.255.0
Flags: Up Broadcast Running Active Multicast
-Send queue limit:50 length:1 Dropped:0
- Rx Interrupts:5391 Not First:0 Not Last:0
- Giant:0 Non-octet:0
- Bad CRC:0 Overrun:0 Collision:0
- Tx Interrupts:5256 Deferred:0 Late Collision:0
- Retransmit Limit:0 Underrun:0 Misaligned:0
+Send queue limit:50 length:1 Dropped:0
+ Rx Interrupts:5391 Not First:0 Not Last:0
+ Giant:0 Non-octet:0
+ Bad CRC:0 Overrun:0 Collision:0
+ Tx Interrupts:5256 Deferred:0 Late Collision:0
+ Retransmit Limit:0 Underrun:0 Misaligned:0
@end smallexample
@subheading CONFIGURATION:
@@ -275,7 +276,7 @@ Send queue limit:50 length:1 Dropped:0
@findex CONFIGURE_SHELL_NO_COMMAND_IFCONFIG
@findex CONFIGURE_SHELL_COMMAND_IFCONFIG
-This command is included in the default shell command set.
+This command is included in the default shell command set.
When building a custom command set, define
@code{CONFIGURE_SHELL_COMMAND_IFCONFIG} to have this
command included.
@@ -381,7 +382,7 @@ default 192.168.1.14 UGS 0 0 0 eth1
@findex CONFIGURE_SHELL_NO_COMMAND_ROUTE
@findex CONFIGURE_SHELL_COMMAND_ROUTE
-This command is included in the default shell command set.
+This command is included in the default shell command set.
When building a custom command set, define
@code{CONFIGURE_SHELL_COMMAND_ROUTE} to have this
command included.
@@ -411,3 +412,271 @@ following prototype:
extern rtems_shell_cmd_t rtems_shell_ROUTE_Command;
@end example
+@c
+@c
+@c
+@page
+@subsection ping - ping a host or IP address
+
+@pgindex ping
+
+@subheading SYNOPSYS:
+
+@example
+ping [-AaDdfnoQqRrv] [-c count] [-G sweepmaxsize] [-g sweepminsize]
+ [-h sweepincrsize] [-i wait] [-l preload] [-M mask | time] [-m ttl]
+ [-p pattern] [-S src_addr] [-s packetsize] [-t timeout]
+ [-W waittime] [-z tos] host
+ping [-AaDdfLnoQqRrv] [-c count] [-I iface] [-i wait] [-l preload]
+ [-M mask | time] [-m ttl] [-p pattern] [-S src_addr]
+ [-s packetsize] [-T ttl] [-t timeout] [-W waittime]
+ [-z tos] mcast-group
+@end example
+
+@subheading DESCRIPTION:
+
+The ping utility uses the ICMP protocol's mandatory ECHO_REQUEST
+datagram to elicit an ICMP ECHO_RESPONSE from a host or gateway.
+ECHO_REQUEST datagrams (``pings'') have an IP and ICMP header,
+followed by a ``struct timeval'' and then an arbitrary number of
+``pad'' bytes used to fill out the packet. The options are as
+follows:
+
+@table @b
+@item -A
+Audible. Output a bell (ASCII 0x07) character when no packet is
+received before the next packet is transmitted. To cater for
+round-trip times that are longer than the interval between
+transmissions, further missing packets cause a bell only if the
+maximum number of unreceived packets has increased.
+
+@item -a
+Audible. Include a bell (ASCII 0x07) character in the output when any
+packet is received. This option is ignored if other format options
+are present.
+
+@item -c count
+Stop after sending (and receiving) count ECHO_RESPONSE packets. If
+this option is not specified, ping will operate until interrupted. If
+this option is specified in conjunction with ping sweeps, each sweep
+will consist of count packets.
+
+@item -D
+Set the Don't Fragment bit.
+
+@item -d
+Set the SO_DEBUG option on the socket being used.
+
+@item -f
+Flood ping. Outputs packets as fast as they come back or one
+hundred times per second, whichever is more. For every ECHO_REQUEST
+sent a period ``.'' is printed, while for every ECHO_REPLY received a
+backspace is printed. This provides a rapid display of how many
+packets are being dropped. Only the super-user may use this option.
+This can be very hard on a network and should be used with caution.
+
+@item -G sweepmaxsize
+Specify the maximum size of ICMP payload when sending sweeping pings.
+This option is required for ping sweeps.
+
+@item -g sweepminsize
+Specify the size of ICMP payload to start with when sending sweeping
+pings. The default value is 0.
+
+@item -h sweepincrsize
+Specify the number of bytes to increment the size of ICMP payload
+after each sweep when sending sweeping pings. The default value is 1.
+
+@item -I iface
+Source multicast packets with the given interface address. This flag
+only applies if the ping destination is a multicast address.
+
+@item -i wait
+Wait wait seconds between sending each packet. The default is to wait
+for one second between each packet. The wait time may be fractional,
+but only the super-user may specify values less than 1 second. This
+option is incompatible with the -f option.
+
+@item -L
+Suppress loopback of multicast packets. This flag only applies if the
+ping destination is a multicast address.
+
+@item -l preload
+If preload is specified, ping sends that many packets as fast as
+possible before falling into its normal mode of behavior. Only the
+super-user may use this option.
+
+@item -M mask | time
+Use ICMP_MASKREQ or ICMP_TSTAMP instead of ICMP_ECHO. For mask, print
+the netmask of the remote machine. Set the net.inet.icmp.maskrepl MIB
+variable to enable ICMP_MASKREPLY. For time, print the origination,
+reception and transmission timestamps.
+
+@item -m ttl
+Set the IP Time To Live for outgoing packets. If not specified, the
+kernel uses the value of the net.inet.ip.ttl MIB variable.
+
+@item -n
+Numeric output only. No attempt will be made to lookup symbolic names
+for host addresses.
+
+@item -o
+Exit successfully after receiving one reply packet.
+
+@item -p pattern
+You may specify up to 16 ``pad'' bytes to fill out the packet you
+send. This is useful for diagnosing data-dependent problems in a
+network. For example, ``-p ff'' will cause the sent packet to be
+filled with all ones.
+
+@item -Q
+Somewhat quiet output. Don't display ICMP error messages that are in
+response to our query messages. Originally, the -v flag was required
+to display such errors, but -v displays all ICMP error messages. On a
+busy machine, this output can be overbear- ing. Without the -Q flag,
+ping prints out any ICMP error mes- sages caused by its own
+ECHO_REQUEST messages.
+
+@item -q
+Quiet output. Nothing is displayed except the summary lines at
+startup time and when finished.
+
+@item -R
+Record route. Includes the RECORD_ROUTE option in the ECHO_REQUEST
+packet and displays the route buffer on returned packets. Note that
+the IP header is only large enough for nine such routes; the
+traceroute(8) command is usually better at determining the route
+packets take to a particular destination. If more routes come back
+than should, such as due to an illegal spoofed packet, ping will print
+the route list and then truncate it at the correct spot. Many hosts
+ignore or discard the RECORD_ROUTE option.
+
+@item -r
+Bypass the normal routing tables and send directly to a host on an
+attached network. If the host is not on a directly-attached network,
+an error is returned. This option can be used to ping a local host
+through an interface that has no route through it (e.g., after the
+interface was dropped).
+
+@item -S src_addr
+Use the following IP address as the source address in outgoing
+packets. On hosts with more than one IP address, this option can be
+used to force the source address to be something other than the IP
+address of the interface the probe packet is sent on. If the IP
+address is not one of this machine's interface addresses, an error is
+returned and nothing is sent.
+
+@item -s packetsize
+Specify the number of data bytes to be sent. The default is 56, which
+translates into 64 ICMP data bytes when combined with the 8 bytes of
+ICMP header data. Only the super-user may specify val- ues more than
+default. This option cannot be used with ping sweeps.
+
+@item -T ttl
+Set the IP Time To Live for multicasted packets. This flag only
+applies if the ping destination is a multicast address.
+
+@item -t timeout
+Specify a timeout, in seconds, before ping exits regardless of how
+many packets have been received.
+
+@item -v
+Verbose output. ICMP packets other than ECHO_RESPONSE that are
+received are listed.
+
+@item -W waittime
+Time in milliseconds to wait for a reply for each packet sent. If a
+reply arrives later, the packet is not printed as replied, but
+considered as replied when calculating statistics.
+
+@item -z tos
+Use the specified type of service.
+
+@subheading EXIT STATUS:
+The ping utility exits with one of the following values:
+
+0 At least one response was heard from the specified host.
+
+2 The transmission was successful but no responses were
+ received.
+
+any other value an error occurred. These values are defined in
+<sysexits.h>.
+
+@subheading NOTES:
+
+When using ping for fault isolation, it should first be run on the
+local host, to verify that the local network interface is up and
+running. Then, hosts and gateways further and further away should be
+``pinged''. Round-trip times and packet loss statistics are computed.
+If duplicate packets are received, they are not included in the packet
+loss calculation, although the round trip time of these packets is
+used in calculating the round-trip time statistics. When the
+specified number of packets have been sent a brief summary is
+displayed, showing the number of packets sent and received, and the
+minimum, mean, maximum, and standard deviation of the round-trip
+times.
+
+This program is intended for use in network testing, measurement and
+management. Because of the load it can impose on the network, it is
+unwise to use ping during normal operations or from automated scripts.
+
+@subheading EXAMPLES:
+
+The following is an example of how to use @code{oing} to ping:
+
+@smallexample
+[/] # ping 10.10.10.1
+PING 10.10.10.1 (10.10.10.1): 56 data bytes
+64 bytes from 10.10.10.1: icmp_seq=0 ttl=63 time=0.356 ms
+64 bytes from 10.10.10.1: icmp_seq=1 ttl=63 time=0.229 ms
+64 bytes from 10.10.10.1: icmp_seq=2 ttl=63 time=0.233 ms
+64 bytes from 10.10.10.1: icmp_seq=3 ttl=63 time=0.235 ms
+64 bytes from 10.10.10.1: icmp_seq=4 ttl=63 time=0.229 ms
+
+--- 10.10.10.1 ping statistics ---
+5 packets transmitted, 5 packets received, 0.0% packet loss
+round-trip min/avg/max/stddev = 0.229/0.256/0.356/0.050 ms
+[/] # ping -f -c 10000 10.10.10.1
+PING 10.10.10.1 (10.10.10.1): 56 data bytes
+.
+--- 10.10.10.1 ping statistics ---
+10000 packets transmitted, 10000 packets received, 0.0% packet loss
+round-trip min/avg/max/stddev = 0.154/0.225/0.533/0.027 ms
+@end smallexample
+
+@subheading CONFIGURATION:
+
+@findex CONFIGURE_SHELL_NO_COMMAND_PING
+@findex CONFIGURE_SHELL_COMMAND_PING
+
+This command is included in the default shell command set.
+When building a custom command set, define
+@code{CONFIGURE_SHELL_COMMAND_PING} to have this
+command included.
+
+This command can be excluded from the shell command set by
+defining @code{CONFIGURE_SHELL_NO_COMMAND_PING} when all
+shell commands have been configured.
+
+@subheading PROGRAMMING INFORMATION:
+
+@findex rtems_shell_rtems_main_ping
+
+The @code{ping} is implemented by a C language function
+which has the following prototype:
+
+@example
+int rtems_shell_rtems_main_ping(
+ int argc,
+ char **argv
+);
+@end example
+
+The configuration structure for the @code{ping} has the
+following prototype:
+
+@example
+extern rtems_shell_cmd_t rtems_shell_PING_Command;
+@end example
+