diff options
Diffstat (limited to 'contrib/tcpdump/print-ntp.c')
-rw-r--r-- | contrib/tcpdump/print-ntp.c | 289 |
1 files changed, 0 insertions, 289 deletions
diff --git a/contrib/tcpdump/print-ntp.c b/contrib/tcpdump/print-ntp.c deleted file mode 100644 index 606a654..0000000 --- a/contrib/tcpdump/print-ntp.c +++ /dev/null @@ -1,289 +0,0 @@ -/* - * Copyright (c) 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997 - * 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: (1) source code distributions - * retain the above copyright notice and this paragraph in its entirety, (2) - * distributions including binary code include the above copyright notice and - * this paragraph in its entirety in the documentation or other materials - * provided with the distribution, and (3) all advertising materials mentioning - * features or use of this software display the following acknowledgement: - * ``This product includes software developed by the University of California, - * Lawrence Berkeley Laboratory and its contributors.'' 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 ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. - * - * Format and print ntp packets. - * By Jeffrey Mogul/DECWRL - * loosely based on print-bootp.c - */ - -#ifndef lint -static const char rcsid[] _U_ = - "@(#) $Header: /tcpdump/master/tcpdump/print-ntp.c,v 1.41.2.1 2005/05/06 07:57:18 guy Exp $ (LBL)"; -#endif - -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -#include <tcpdump-stdinc.h> - -#include <stdio.h> -#include <string.h> -#ifdef HAVE_STRFTIME -#include <time.h> -#endif - -#include "interface.h" -#include "addrtoname.h" -#include "extract.h" -#ifdef MODEMASK -#undef MODEMASK /* Solaris sucks */ -#endif -#include "ntp.h" - -static void p_sfix(const struct s_fixedpt *); -static void p_ntp_time(const struct l_fixedpt *); -static void p_ntp_delta(const struct l_fixedpt *, const struct l_fixedpt *); - -static struct tok ntp_mode_values[] = { - { MODE_UNSPEC, "unspecified" }, - { MODE_SYM_ACT, "symmetric active" }, - { MODE_SYM_PAS, "symmetric passive" }, - { MODE_CLIENT, "Client" }, - { MODE_SERVER, "Server" }, - { MODE_BROADCAST, "Broadcast" }, - { MODE_RES1, "Reserved" }, - { MODE_RES2, "Reserved" }, - { 0, NULL } -}; - -static struct tok ntp_leapind_values[] = { - { NO_WARNING, "" }, - { PLUS_SEC, "+1s" }, - { MINUS_SEC, "-1s" }, - { ALARM, "clock unsynchronized" }, - { 0, NULL } -}; - -/* - * Print ntp requests - */ -void -ntp_print(register const u_char *cp, u_int length) -{ - register const struct ntpdata *bp; - int mode, version, leapind; - - bp = (struct ntpdata *)cp; - - TCHECK(bp->status); - - version = (int)(bp->status & VERSIONMASK) >> 3; - printf("NTPv%d", version); - - mode = bp->status & MODEMASK; - if (!vflag) { - printf (", %s, length %u", - tok2str(ntp_mode_values, "Unknown mode", mode), - length); - return; - } - - printf (", length %u\n\t%s", - length, - tok2str(ntp_mode_values, "Unknown mode", mode)); - - leapind = bp->status & LEAPMASK; - printf (", Leap indicator: %s (%u)", - tok2str(ntp_leapind_values, "Unknown", leapind), - leapind); - - TCHECK(bp->stratum); - printf(", Stratum %u", bp->stratum); - - TCHECK(bp->ppoll); - printf(", poll %us", bp->ppoll); - - /* Can't TCHECK bp->precision bitfield so bp->distance + 0 instead */ - TCHECK2(bp->root_delay, 0); - printf(", precision %d", bp->precision); - - TCHECK(bp->root_delay); - fputs("\n\tRoot Delay: ", stdout); - p_sfix(&bp->root_delay); - - TCHECK(bp->root_dispersion); - fputs(", Root dispersion: ", stdout); - p_sfix(&bp->root_dispersion); - - TCHECK(bp->refid); - fputs(", Reference-ID: ", stdout); - /* Interpretation depends on stratum */ - switch (bp->stratum) { - - case UNSPECIFIED: - printf("(unspec)"); - break; - - case PRIM_REF: - if (fn_printn((u_char *)&(bp->refid), 4, snapend)) - goto trunc; - break; - - case INFO_QUERY: - printf("%s INFO_QUERY", ipaddr_string(&(bp->refid))); - /* this doesn't have more content */ - return; - - case INFO_REPLY: - printf("%s INFO_REPLY", ipaddr_string(&(bp->refid))); - /* this is too complex to be worth printing */ - return; - - default: - printf("%s", ipaddr_string(&(bp->refid))); - break; - } - - TCHECK(bp->ref_timestamp); - fputs("\n\t Reference Timestamp: ", stdout); - p_ntp_time(&(bp->ref_timestamp)); - - TCHECK(bp->org_timestamp); - fputs("\n\t Originator Timestamp: ", stdout); - p_ntp_time(&(bp->org_timestamp)); - - TCHECK(bp->rec_timestamp); - fputs("\n\t Receive Timestamp: ", stdout); - p_ntp_time(&(bp->rec_timestamp)); - - TCHECK(bp->xmt_timestamp); - fputs("\n\t Transmit Timestamp: ", stdout); - p_ntp_time(&(bp->xmt_timestamp)); - - fputs("\n\t Originator - Receive Timestamp: ", stdout); - p_ntp_delta(&(bp->org_timestamp), &(bp->rec_timestamp)); - - fputs("\n\t Originator - Transmit Timestamp: ", stdout); - p_ntp_delta(&(bp->org_timestamp), &(bp->xmt_timestamp)); - - /* FIXME key-id, authentication */ - - return; - -trunc: - fputs(" [|ntp]", stdout); -} - -static void -p_sfix(register const struct s_fixedpt *sfp) -{ - register int i; - register int f; - register float ff; - - i = EXTRACT_16BITS(&sfp->int_part); - f = EXTRACT_16BITS(&sfp->fraction); - ff = f / 65536.0; /* shift radix point by 16 bits */ - f = ff * 1000000.0; /* Treat fraction as parts per million */ - printf("%d.%06d", i, f); -} - -#define FMAXINT (4294967296.0) /* floating point rep. of MAXINT */ - -static void -p_ntp_time(register const struct l_fixedpt *lfp) -{ - register int32_t i; - register u_int32_t uf; - register u_int32_t f; - register float ff; - - i = EXTRACT_32BITS(&lfp->int_part); - uf = EXTRACT_32BITS(&lfp->fraction); - ff = uf; - if (ff < 0.0) /* some compilers are buggy */ - ff += FMAXINT; - ff = ff / FMAXINT; /* shift radix point by 32 bits */ - f = ff * 1000000000.0; /* treat fraction as parts per billion */ - printf("%u.%09d", i, f); - -#ifdef HAVE_STRFTIME - /* - * print the time in human-readable format. - */ - if (i) { - time_t seconds = i - JAN_1970; - struct tm *tm; - char time_buf[128]; - - tm = localtime(&seconds); - strftime(time_buf, sizeof (time_buf), "%Y/%m/%d %H:%M:%S", tm); - printf (" (%s)", time_buf); - } -#endif -} - -/* Prints time difference between *lfp and *olfp */ -static void -p_ntp_delta(register const struct l_fixedpt *olfp, - register const struct l_fixedpt *lfp) -{ - register int32_t i; - register u_int32_t u, uf; - register u_int32_t ou, ouf; - register u_int32_t f; - register float ff; - int signbit; - - u = EXTRACT_32BITS(&lfp->int_part); - ou = EXTRACT_32BITS(&olfp->int_part); - uf = EXTRACT_32BITS(&lfp->fraction); - ouf = EXTRACT_32BITS(&olfp->fraction); - if (ou == 0 && ouf == 0) { - p_ntp_time(lfp); - return; - } - - i = u - ou; - - if (i > 0) { /* new is definitely greater than old */ - signbit = 0; - f = uf - ouf; - if (ouf > uf) /* must borrow from high-order bits */ - i -= 1; - } else if (i < 0) { /* new is definitely less than old */ - signbit = 1; - f = ouf - uf; - if (uf > ouf) /* must carry into the high-order bits */ - i += 1; - i = -i; - } else { /* int_part is zero */ - if (uf > ouf) { - signbit = 0; - f = uf - ouf; - } else { - signbit = 1; - f = ouf - uf; - } - } - - ff = f; - if (ff < 0.0) /* some compilers are buggy */ - ff += FMAXINT; - ff = ff / FMAXINT; /* shift radix point by 32 bits */ - f = ff * 1000000000.0; /* treat fraction as parts per billion */ - if (signbit) - putchar('-'); - else - putchar('+'); - printf("%d.%09d", i, f); -} - |