* Routines for NTP packet dissection
* Copyright 1999, Nathan Neulinger <nneul@umr.edu>
*
- * $Id: packet-ntp.c,v 1.27 2001/04/09 21:42:01 guy Exp $
+ * $Id: packet-ntp.c,v 1.36 2002/08/02 23:35:55 jmayer Exp $
*
* Ethereal - Network traffic analyzer
- * By Gerald Combs <gerald@zing.org>
+ * By Gerald Combs <gerald@ethereal.com>
* Copyright 1998 Gerald Combs
*
* Copied from packet-tftp.c
#include <stdio.h>
-#ifdef HAVE_SYS_TYPES_H
-# include <sys/types.h>
-#endif
-
-#ifdef HAVE_NETINET_IN_H
-# include <netinet/in.h>
-#endif
-
#include <string.h>
#include <time.h>
#include <math.h>
# include "snprintf.h"
#endif
-#include "packet.h"
-#include "resolv.h"
+#include <epan/packet.h>
+#include <epan/resolv.h>
#include "packet-ntp.h"
/*
} else {
temptime = tempstmp - (guint32) NTP_BASETIME;
bd = gmtime(&temptime);
- fractime = bd->tm_sec + tempfrac / 4294967296.0;
- snprintf(buff, NTP_TS_SIZE, "%04d-%02d-%02d %02d:%02d:%07.4f UTC",
- bd->tm_year + 1900, bd->tm_mon + 1, bd->tm_mday,
- bd->tm_hour, bd->tm_min, fractime);
+ if (bd != NULL) {
+ fractime = bd->tm_sec + tempfrac / 4294967296.0;
+ snprintf(buff, NTP_TS_SIZE,
+ "%04d-%02d-%02d %02d:%02d:%07.4f UTC",
+ bd->tm_year + 1900, bd->tm_mon + 1, bd->tm_mday,
+ bd->tm_hour, bd->tm_min, fractime);
+ } else
+ strncpy(buff, "Not representable", NTP_TS_SIZE);
}
return buff;
}
double rootdelay;
double rootdispersion;
const guint8 *refid;
+ guint32 refid_addr;
const guint8 *reftime;
const guint8 *org;
const guint8 *rec;
gchar buff[NTP_TS_SIZE];
int i;
- if (check_col(pinfo->fd, COL_PROTOCOL))
- col_set_str(pinfo->fd, COL_PROTOCOL, "NTP");
+ if (check_col(pinfo->cinfo, COL_PROTOCOL))
+ col_set_str(pinfo->cinfo, COL_PROTOCOL, "NTP");
- if (check_col(pinfo->fd, COL_INFO))
- col_set_str(pinfo->fd, COL_INFO, "NTP");
+ if (check_col(pinfo->cinfo, COL_INFO))
+ col_set_str(pinfo->cinfo, COL_INFO, "NTP");
if (tree) {
/* Adding NTP item and subtree */
- ti = proto_tree_add_item(tree, proto_ntp, tvb, 0,
- tvb_length(tvb), FALSE);
+ ti = proto_tree_add_item(tree, proto_ntp, tvb, 0, -1, FALSE);
ntp_tree = proto_item_add_subtree(ti, ett_ntp);
flags = tvb_get_guint8(tvb, 0);
}
} else {
buff[sizeof(buff) - 1] = '\0';
- strncpy (buff, get_hostname (htonl(tvb_get_ntohl(tvb, 12))),
+ tvb_memcpy(tvb, (guint8 *)&refid_addr, 12, 4);
+ strncpy (buff, get_hostname (refid_addr),
sizeof(buff));
if (buff[sizeof(buff) - 1] != '\0')
strcpy(&buff[sizeof(buff) - 4], "...");
static hf_register_info hf[] = {
{ &hf_ntp_flags, {
"Flags", "ntp.flags", FT_UINT8, BASE_HEX,
- NULL, 0, "Flags (Leap/Version/Mode)" }},
+ NULL, 0, "Flags (Leap/Version/Mode)", HFILL }},
{ &hf_ntp_flags_li, {
"Leap Indicator", "ntp.flags.li", FT_UINT8, BASE_DEC,
- VALS(li_types), NTP_LI_MASK, "Leap Indicator" }},
+ VALS(li_types), NTP_LI_MASK, "Leap Indicator", HFILL }},
{ &hf_ntp_flags_vn, {
"Version number", "ntp.flags.vn", FT_UINT8, BASE_DEC,
- VALS(ver_nums), NTP_VN_MASK, "Version number" }},
+ VALS(ver_nums), NTP_VN_MASK, "Version number", HFILL }},
{ &hf_ntp_flags_mode, {
"Mode", "ntp.flags.mode", FT_UINT8, BASE_DEC,
- VALS(mode_types), NTP_MODE_MASK, "Mode" }},
+ VALS(mode_types), NTP_MODE_MASK, "Mode", HFILL }},
{ &hf_ntp_stratum, {
"Peer Clock Stratum", "ntp.stratum", FT_UINT8, BASE_DEC,
- NULL, 0, "Peer Clock Stratum" }},
+ NULL, 0, "Peer Clock Stratum", HFILL }},
{ &hf_ntp_ppoll, {
"Peer Polling Interval", "ntp.ppoll", FT_UINT8, BASE_DEC,
- NULL, 0, "Peer Polling Interval" }},
+ NULL, 0, "Peer Polling Interval", HFILL }},
{ &hf_ntp_precision, {
"Peer Clock Precision", "ntp.precision", FT_UINT8, BASE_DEC,
- NULL, 0, "Peer Clock Precision" }},
+ NULL, 0, "Peer Clock Precision", HFILL }},
{ &hf_ntp_rootdelay, {
"Root Delay", "ntp.rootdelay", FT_DOUBLE, BASE_DEC,
- NULL, 0, "Root Delay" }},
+ NULL, 0, "Root Delay", HFILL }},
{ &hf_ntp_rootdispersion, {
"Clock Dispersion", "ntp.rootdispersion", FT_DOUBLE, BASE_DEC,
- NULL, 0, "Clock Dispersion" }},
+ NULL, 0, "Clock Dispersion", HFILL }},
{ &hf_ntp_refid, {
"Reference Clock ID", "ntp.refid", FT_BYTES, BASE_NONE,
- NULL, 0, "Reference Clock ID" }},
+ NULL, 0, "Reference Clock ID", HFILL }},
{ &hf_ntp_reftime, {
"Reference Clock Update Time", "ntp.reftime", FT_BYTES, BASE_NONE,
- NULL, 0, "Reference Clock Update Time" }},
+ NULL, 0, "Reference Clock Update Time", HFILL }},
{ &hf_ntp_org, {
"Originate Time Stamp", "ntp.org", FT_BYTES, BASE_NONE,
- NULL, 0, "Originate Time Stamp" }},
+ NULL, 0, "Originate Time Stamp", HFILL }},
{ &hf_ntp_rec, {
"Receive Time Stamp", "ntp.rec", FT_BYTES, BASE_NONE,
- NULL, 0, "Receive Time Stamp" }},
+ NULL, 0, "Receive Time Stamp", HFILL }},
{ &hf_ntp_xmt, {
"Transmit Time Stamp", "ntp.xmt", FT_BYTES, BASE_NONE,
- NULL, 0, "Transmit Time Stamp" }},
+ NULL, 0, "Transmit Time Stamp", HFILL }},
{ &hf_ntp_keyid, {
"Key ID", "ntp.keyid", FT_BYTES, BASE_HEX,
- NULL, 0, "Key ID" }},
+ NULL, 0, "Key ID", HFILL }},
{ &hf_ntp_mac, {
"Message Authentication Code", "ntp.mac", FT_BYTES, BASE_HEX,
- NULL, 0, "Message Authentication Code" }},
+ NULL, 0, "Message Authentication Code", HFILL }},
};
static gint *ett[] = {
&ett_ntp,
void
proto_reg_handoff_ntp(void)
{
- dissector_add("udp.port", UDP_PORT_NTP, dissect_ntp, proto_ntp);
- dissector_add("tcp.port", TCP_PORT_NTP, dissect_ntp, proto_ntp);
+ dissector_handle_t ntp_handle;
+
+ ntp_handle = create_dissector_handle(dissect_ntp, proto_ntp);
+ dissector_add("udp.port", UDP_PORT_NTP, ntp_handle);
+ dissector_add("tcp.port", TCP_PORT_NTP, ntp_handle);
}
git.samba.org / obnox / wireshark / wip.git / blobdiff