Ethereal-dev: Re: [ethereal-dev] Hello and a patch
Note: This archive is from the project's previous web site, ethereal.com. This list is no longer active.
From: James Coe <jammer@xxxxxxx>
Date: Mon, 06 Dec 1999 20:57:06 -0600
-------- Original Message -------- X-Mozilla-Status: 8011 X-Mozilla-Status2: 00000000 Message-ID: <384C7706.C11C0256@xxxxxxx> Date: Mon, 06 Dec 1999 20:55:03 -0600 From: James Coe <jammer@xxxxxxx> X-Mailer: Mozilla 4.61 [en] (X11; I; Linux 2.2.10 i586) X-Accept-Language: en MIME-Version: 1.0 To: Guy Harris <guy@xxxxxxxxxx> Subject: Re: [ethereal-dev] Hello and a patch References: <199912070256.SAA14429@tooting> Content-Type: multipart/mixed;boundary="------------F2BDC3CDAD20B83CBC34C82E" Guy Harris wrote: > > I am attaching a patch for the latest source tree to this message. The > > patch adds the 0.3 alpha version of my dissector for Service Location > > Protocol (SRVLOC) on port 427. It also modifies the NetWare Core > > Protocol (NCP) dissector to allow it to decode NCP over IP on port 524. > > "packet-srvloc.c" itself doesn't appear to be in the patch. Hmm. I guess the CVS diff didn't pick it up for some reason. I am attaching a patch file for Makefile.in and the source for packet-srvloc to this message. Jamie.
/* packet-srvloc.c
* Routines for SRVLOC (Service Location Protocol) packet dissection
* Copyright 1999, James Coe <jammer@xxxxxxx>
*
* NOTE: This is Alpha software not all features have been verified yet.
* In particular I have not had an opportunity to see how it
* responds to SRVLOC over TCP.
*
* $Id: packet-srvloc.c,v 0.3 1999/12/05 02:20:27 coe Exp $
*
* Ethereal - Network traffic analyzer
* By Gerald Combs <gerald@xxxxxxxxxx>
* Copyright 1998 Gerald Combs
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <stdio.h>
#include <stdlib.h>
#ifdef HAVE_SYS_TYPES_H
# include <sys/types.h>
#endif
#ifdef HAVE_NETINET_IN_H
# include <netinet/in.h>
#endif
#ifdef NEED_SNPRINTF_H
# ifdef HAVE_STDARG_H
# include <stdarg.h>
# else
# include <varargs.h>
# endif
# include "snprintf.h"
#endif
#include <string.h>
#include <glib.h>
#include "packet.h"
#include "packet-ipv6.h"
int proto_srvloc = -1;
int hf_srvloc_version = -1;
int hf_srvloc_function = -1;
int hf_srvloc_flags = -1;
int hf_srvloc_error = -1;
static gint ett_srvloc = -1;
// Define function types
#define SRVREQ 1
#define SRVRPLY 2
#define SRVREG 3
#define SRVDEREG 4
#define SRVACK 5
#define ATTRRQST 6
#define ATTRRPLY 7
#define DAADVERT 8
#define SRVTYPERQST 9
#define SRVTYPERPLY 10
// Create protocol header structure
struct srvloc_hdr {
guint8 version;
guint8 function;
guint16 length;
guint8 flags;
guint8 dialect;
u_char language[2];
guint16 encoding;
guint16 xid;
};
// List to resolve function numbers to names
static const value_string srvlocfunctionvals[] = {
{ SRVREQ, "Service Request" },
{ SRVRPLY, "Service Reply" },
{ SRVREG, "Service Registration" },
{ SRVDEREG, "Service Deregister" },
{ SRVACK, "Service Acknowledge" },
{ ATTRRQST, "Attribute Request" },
{ ATTRRPLY, "Attribute Reply" },
{ DAADVERT, "DA Advertisement" },
{ SRVTYPERQST, "Service Type Request" },
{ SRVTYPERPLY, "Service Type Reply" },
};
// List to resolve flag values to names
// Define Error Codes
#define SUCCESS 0
#define LANG_NOT_SPTD 1
#define PROT_PARSE_ERR 2
#define INVLD_REG 3
#define SCOPE_NOT_SPTD 4
#define CHRSET_NOT_UND 5
#define AUTH_ABSENT 6
#define AUTH_FAILED 7
// List to resolve error codes to names
static const value_string srvloc_errs[] = {
{ SUCCESS, "No Error" },
{ LANG_NOT_SPTD, "Language not supported" },
{ PROT_PARSE_ERR, "Protocol parse error" },
{ INVLD_REG, "Invalid registration" },
{ SCOPE_NOT_SPTD, "Scope not supported" },
{ CHRSET_NOT_UND, "Character set not understood" },
{ AUTH_ABSENT, "Authentication absent" },
{ AUTH_FAILED, "Authentication failed" },
};
// Packet dissection routine called by tcp & udp when port 427 detected
void
dissect_srvloc(const u_char *pd, int offset, frame_data *fd, proto_tree *tree)
{
proto_item *ti;
proto_tree *srvloc_tree;
struct srvloc_hdr srvloc_hdr;
int count;
int length;
if (check_col(fd, COL_PROTOCOL))
col_add_str(fd, COL_PROTOCOL, "SRVLOC");
if (check_col(fd, COL_INFO))
col_add_str(fd, COL_INFO, "Service Location Protocol");
if (tree) {
ti = proto_tree_add_item(tree, proto_srvloc, offset, END_OF_FRAME, NULL);
srvloc_tree = proto_item_add_subtree(ti, ett_srvloc);
if ( END_OF_FRAME > sizeof(srvloc_hdr) ) {
memcpy( &srvloc_hdr, &pd[offset], sizeof(srvloc_hdr) );
srvloc_hdr.length = ntohs(srvloc_hdr.length);
srvloc_hdr.encoding = ntohs(srvloc_hdr.encoding);
srvloc_hdr.xid = ntohs(srvloc_hdr.xid);
proto_tree_add_item(srvloc_tree, hf_srvloc_version, offset, 1, srvloc_hdr.version);
proto_tree_add_item(srvloc_tree, hf_srvloc_function, offset + 1, 1, srvloc_hdr.function);
proto_tree_add_text(srvloc_tree, offset + 2, 2, "Length: %d",srvloc_hdr.length);
proto_tree_add_item(srvloc_tree, hf_srvloc_flags, offset + 4, 1, srvloc_hdr.flags);
proto_tree_add_text(srvloc_tree, offset + 4, 0, "Overflow %d... .xxx", (srvloc_hdr.flags & 0x80) >> 7 );
proto_tree_add_text(srvloc_tree, offset + 4, 0, "Monolingual .%d.. .xxx", (srvloc_hdr.flags & 0x40) >> 6 );
proto_tree_add_text(srvloc_tree, offset + 4, 0, "URL Authentication Present ..%d. .xxx", (srvloc_hdr.flags & 0x20) >> 5 );
proto_tree_add_text(srvloc_tree, offset + 4, 0, "Attribute Authentication Present ...%d .xxx", (srvloc_hdr.flags & 0x10) >> 4 );
proto_tree_add_text(srvloc_tree, offset + 4, 0, "Fresh Service Entry .... %dxxx", (srvloc_hdr.flags & 0x08) >> 3 );
proto_tree_add_text(srvloc_tree, offset + 5, 1, "Dialect: %d",srvloc_hdr.dialect);
proto_tree_add_text(srvloc_tree, offset + 6, 2, "Language: %s", format_text(srvloc_hdr.language,2));
proto_tree_add_text(srvloc_tree, offset + 8, 2, "Encoding: %d", srvloc_hdr.encoding);
proto_tree_add_text(srvloc_tree, offset + 10, 2, "Transaction ID: %d", srvloc_hdr.xid);
offset += 12;
} else {
proto_tree_add_text(srvloc_tree, offset, END_OF_FRAME, "Invalid Packet: Length less than header.");
};
if (( srvloc_hdr.length - 12 ) == END_OF_FRAME ) {
switch (srvloc_hdr.function) {
case SRVREQ:
proto_tree_add_text(srvloc_tree, offset, 0, "Service Request");
length = pntohs(&pd[offset]);
proto_tree_add_text(srvloc_tree, offset, 2, "Previous Response List Length: %d", length);
offset += 2;
proto_tree_add_text(srvloc_tree, offset, length, "Previous Response List: %s", format_text(&pd[offset], length));
offset += length;
length = pntohs(&pd[offset]);
proto_tree_add_text(srvloc_tree, offset, 2, "Predicate length: %d", length);
offset += 2;
proto_tree_add_text(srvloc_tree, offset, length, "Predicate: %s", format_text(&pd[offset], length));
offset += length;
break;
case SRVRPLY:
proto_tree_add_text(srvloc_tree, offset, 0, "Service Reply");
proto_tree_add_item(srvloc_tree, hf_srvloc_error, offset, 2, pd[offset]);;
offset += 2;
proto_tree_add_text(srvloc_tree, offset, 2, "URL Count: %d", pntohs(&pd[offset]));
offset += 2;
for (count = pntohs(&pd[offset]) + 1; count > 0; count--, offset++) {
proto_tree_add_text(srvloc_tree, offset, 2, "URL lifetime: %d", pntohs(&pd[offset]));
offset += 2;
length = pntohs(&pd[offset]);
proto_tree_add_text(srvloc_tree, offset, 2, "URL length: %d", length);
offset += 2;
proto_tree_add_text(srvloc_tree, offset, length, "Service URL: %s", format_text(&pd[offset], length));
offset += length;
};
break;
case SRVREG:
proto_tree_add_text(srvloc_tree, offset, 0, "Service Registration");
proto_tree_add_text(srvloc_tree, offset, 2, "URL lifetime: %d", pntohs(&pd[offset]));
offset += 2;
length = pntohs(&pd[offset]);
proto_tree_add_text(srvloc_tree, offset, 2, "URL length: %d", length);
offset += 2;
proto_tree_add_text(srvloc_tree, offset, length, "Service URL: %s", format_text(&pd[offset], length));
offset += length;
length = pntohs(&pd[offset]);
proto_tree_add_text(srvloc_tree, offset, 2, "Attribute List length: %d", length);
offset += 2;
proto_tree_add_text(srvloc_tree, offset, length, "Attribute List: %s", format_text(&pd[offset], length));
offset += length;
break;
case SRVDEREG:
proto_tree_add_text(srvloc_tree, offset, 0, "Service Deregister");
length = pntohs(&pd[offset]);
proto_tree_add_text(srvloc_tree, offset, 2, "URL length: %d", length);
offset += 2;
proto_tree_add_text(srvloc_tree, offset, length, "Service URL: %s", format_text(&pd[offset], length));
offset += length;
length = pntohs(&pd[offset]);
proto_tree_add_text(srvloc_tree, offset, 2, "Attribute List length: %d", length);
offset += 2;
proto_tree_add_text(srvloc_tree, offset, length, "Attribute List: %s", format_text(&pd[offset], length));
offset += length;
break;
case SRVACK:
proto_tree_add_text(srvloc_tree, offset, 0, "Service Acknowledge");
proto_tree_add_item(srvloc_tree, hf_srvloc_error, offset, 2, pd[offset]);;
offset += 2;
break;
case ATTRRQST:
proto_tree_add_text(srvloc_tree, offset, 0, "Attribute Request");
length = pntohs(&pd[offset]);
proto_tree_add_text(srvloc_tree, offset, 2, "Previous Response List Length: %d", length);
offset += 2;
proto_tree_add_text(srvloc_tree, offset, length, "Previous Response List: %s", format_text(&pd[offset], length));
offset += length;
length = pntohs(&pd[offset]);
proto_tree_add_text(srvloc_tree, offset, 2, "URL length: %d", length);
offset += 2;
proto_tree_add_text(srvloc_tree, offset, length, "Service URL: %s", format_text(&pd[offset], length));
offset += length;
length = pntohs(&pd[offset]);
proto_tree_add_text(srvloc_tree, offset, 2, "Scope List Length: %d", length);
offset += 2;
proto_tree_add_text(srvloc_tree, offset, length, "Scope Response List: %s", format_text(&pd[offset], length));
offset += length;
length = pntohs(&pd[offset]);
proto_tree_add_text(srvloc_tree, offset, 2, "Attribute List length: %d", length);
offset += 2;
proto_tree_add_text(srvloc_tree, offset, length, "Attribute List: %s", format_text(&pd[offset], length));
offset += length;
break;
case ATTRRPLY:
proto_tree_add_text(srvloc_tree, offset, 0, "Attribute Reply");
proto_tree_add_item(srvloc_tree, hf_srvloc_error, offset, 2, pd[offset]);;
offset += 2;
length = pntohs(&pd[offset]);
proto_tree_add_text(srvloc_tree, offset, 2, "Attribute List length: %d", length);
offset += 2;
proto_tree_add_text(srvloc_tree, offset, length, "Attribute List: %s", format_text(&pd[offset], length));
offset += length;
break;
case DAADVERT:
proto_tree_add_text(srvloc_tree, offset, 0, "DA Advertisement");
proto_tree_add_item(srvloc_tree, hf_srvloc_error, offset, 2, pd[offset]);;
offset += 2;
length = pntohs(&pd[offset]);
proto_tree_add_text(srvloc_tree, offset, 2, "URL length: %d", length);
offset += 2;
proto_tree_add_text(srvloc_tree, offset, length, "Service URL: %s", format_text(&pd[offset], length));
offset += length;
length = pntohs(&pd[offset]);
proto_tree_add_text(srvloc_tree, offset, 2, "Scope List Length: %d", length);
offset += 2;
proto_tree_add_text(srvloc_tree, offset, length, "Scope Response List: %s", format_text(&pd[offset], length));
offset += length;
break;
case SRVTYPERQST:
proto_tree_add_text(srvloc_tree, offset, 0, "Service Type Request");
length = pntohs(&pd[offset]);
proto_tree_add_text(srvloc_tree, offset, 2, "Previous Response List Length: %d", length);
offset += 2;
proto_tree_add_text(srvloc_tree, offset, length, "Previous Response List: %s", format_text(&pd[offset], length));
offset += length;
length = pntohs(&pd[offset]);
proto_tree_add_text(srvloc_tree, offset, 2, "Naming Authority List length: %d", length);
offset += 2;
proto_tree_add_text(srvloc_tree, offset, length, "Naming Authority List: %s", format_text(&pd[offset], length));
offset += length;
length = pntohs(&pd[offset]);
proto_tree_add_text(srvloc_tree, offset, 2, "Scope List Length: %d", length);
offset += 2;
proto_tree_add_text(srvloc_tree, offset, length, "Scope Response List: %s", format_text(&pd[offset], length));
offset += length;
break;
case SRVTYPERPLY:
proto_tree_add_text(srvloc_tree, offset, 0, "Service Type Reply");
proto_tree_add_item(srvloc_tree, hf_srvloc_error, offset, 2, pd[offset]);;
offset += 2;
proto_tree_add_text(srvloc_tree, offset, 2, "Service Type Count: %d", pntohs(&pd[offset]));
offset += 2;
for (count = pntohs(&pd[offset]) + 1; count > 0; count--, offset++) {
length = pntohs(&pd[offset]);
proto_tree_add_text(srvloc_tree, offset, 2, "Service Type List length: %d", length);
offset += 2;
proto_tree_add_text(srvloc_tree, offset, length, "Service Type List: %s", format_text(&pd[offset], length));
offset += length;
};
break;
default:
proto_tree_add_text(srvloc_tree, offset, END_OF_FRAME, "Unknown Function Type");
};
} else { proto_tree_add_text(srvloc_tree, offset, END_OF_FRAME,"Invalid packet: Bad length value");
};
};
};
// Register protocol with Ethereal.
void
proto_register_srvloc(void)
{
static hf_register_info hf[] = {
{ &hf_srvloc_version,
{ "Version", "srvloc.version",
FT_UINT8, BASE_DEC, NULL, 0x0,
"" }
},
{&hf_srvloc_function,
{"Function", "srvloc.function",
FT_UINT8, BASE_DEC, VALS(srvlocfunctionvals), 0x0,
""}
},
{&hf_srvloc_flags,
{"Flags", "srvloc.flags",
FT_UINT8, BASE_HEX, NULL, 0x0,
""}
},
{&hf_srvloc_error,
{"Error Code", "srvloc.err",
FT_UINT8, BASE_DEC, VALS(srvloc_errs), 0x0,
""}
},
};
static gint *ett[] = {
&ett_srvloc,
};
proto_srvloc = proto_register_protocol("Service Location Protocol", "srvloc");
proto_register_field_array(proto_srvloc, hf, array_length(hf));
proto_register_subtree_array(ett, array_length(ett));
};
--- Makefile.in~ Mon Dec 6 17:57:53 1999 +++ Makefile.in Mon Dec 6 19:17:08 1999 @@ -123,7 +123,7 @@ # Any POSIX-compatible YACC should honor the -p flag YFLAGS = -d -p dfilter_ -DISSECTOR_SOURCES = packet-aarp.c packet-afs.c packet-afs.h packet-arp.c packet-arp.h packet-ascend.c packet-atalk.c packet-atalk.h packet-atm.c packet-auto_rp.c packet-bgp.c packet-bgp.h packet-bootp.c packet-bootparams.c packet-bootparams.h packet-bpdu.c packet-cdp.c packet-clip.c packet-data.c packet-dns.c packet-dns.h packet-eth.c packet-fddi.c packet-ftp.c packet-giop.c packet-gre.c packet-hsrp.c packet-http.c packet-icmpv6.c packet-icp.c packet-icq.c packet-imap.c packet-ip.c packet-ip.h packet-ipp.c packet-ipsec.c packet-ipv6.c packet-ipv6.h packet-ipx.c packet-ipx.h packet-irc.c packet-isakmp.c packet-lapb.c packet-lapd.c packet-llc.c packet-lpd.c packet-mapi.c packet-mount.c packet-mount.h packet-nbipx.c packet-nbns.c packet-ncp.c packet-ncp.h packet-netbios.c packet-netbios.h packet-nfs.c packet-nfs.h packet-nlm.c packet-nlm.h packet-nntp.c packet-ntp.c packet-ntp.h packet-null.c packet-osi.c packet-ospf.c packet-ospf.h packet-pim.c packet-pop.c packet-portmap.c packet-portmap.h packet-ppp.c packet-pppoe.c packet-pptp.c packet-q2931.c packet-q931.c packet-q931.h packet-radius.c packet-raw.c packet-rip.c packet-rip.h packet-ripng.c packet-ripng.h packet-rpc.c packet-rpc.h packet-rsvp.c packet-rsvp.h packet-rtsp.c packet-rx.c packet-rx.h packet-sap.c packet-sdp.c packet-smb.c packet-sna.c packet-sna.h packet-snmp.c packet-snmp.h packet-sscop.c packet-stat.c packet-stat.h packet-tacacs.c packet-tcp.c packet-telnet.c packet-tftp.c packet-tns.c packet-tns.h packet-tr.c packet-trmac.c packet-udp.c packet-vines.c packet-vines.h packet-vlan.c packet-vrrp.c packet-x25.c packet-yhoo.c packet-yhoo.h packet-ypbind.c packet-ypbind.h packet-ypserv.c packet-ypserv.h packet-ypxfr.c packet-ypxfr.h +DISSECTOR_SOURCES = packet-aarp.c packet-afs.c packet-afs.h packet-arp.c packet-arp.h packet-ascend.c packet-atalk.c packet-atalk.h packet-atm.c packet-auto_rp.c packet-bgp.c packet-bgp.h packet-bootp.c packet-bootparams.c packet-bootparams.h packet-bpdu.c packet-cdp.c packet-clip.c packet-data.c packet-dns.c packet-dns.h packet-eth.c packet-fddi.c packet-ftp.c packet-giop.c packet-gre.c packet-hsrp.c packet-http.c packet-icmpv6.c packet-icp.c packet-icq.c packet-imap.c packet-ip.c packet-ip.h packet-ipp.c packet-ipsec.c packet-ipv6.c packet-ipv6.h packet-ipx.c packet-ipx.h packet-irc.c packet-isakmp.c packet-lapb.c packet-lapd.c packet-llc.c packet-lpd.c packet-mapi.c packet-mount.c packet-mount.h packet-nbipx.c packet-nbns.c packet-ncp.c packet-ncp.h packet-netbios.c packet-netbios.h packet-nfs.c packet-nfs.h packet-nlm.c packet-nlm.h packet-nntp.c packet-ntp.c packet-ntp.h packet-null.c packet-osi.c packet-ospf.c packet-ospf.h packet-pim.c packet-pop.c packet-portmap.c packet-portmap.h packet-ppp.c packet-pppoe.c packet-pptp.c packet-q2931.c packet-q931.c packet-q931.h packet-radius.c packet-raw.c packet-rip.c packet-rip.h packet-ripng.c packet-ripng.h packet-rpc.c packet-rpc.h packet-rsvp.c packet-rsvp.h packet-rtsp.c packet-rx.c packet-rx.h packet-sap.c packet-sdp.c packet-smb.c packet-sna.c packet-sna.h packet-snmp.c packet-snmp.h packet-srvloc.c packet-sscop.c packet-stat.c packet-stat.h packet-tacacs.c packet-tcp.c packet-telnet.c packet-tftp.c packet-tns.c packet-tns.h packet-tr.c packet-trmac.c packet-udp.c packet-vines.c packet-vines.h packet-vlan.c packet-vrrp.c packet-x25.c packet-yhoo.c packet-yhoo.h packet-ypbind.c packet-ypbind.h packet-ypserv.c packet-ypserv.h packet-ypxfr.c packet-ypxfr.h ethereal_SOURCES = alignment.h asn1.c asn1.h capture.c capture.h colors.c colors.h column.c column.h conversation.c conversation.h dfilter-int.h dfilter-grammar.y dfilter-scanner.l dfilter.c dfilter.h ethertype.c etypes.h file.c file.h follow.c follow.h globals.h inet_v6defs.h ipproto.c ipv4.c ipv4.h packet.c packet.h prefs.c prefs.h print.c print.h proto.c proto.h ps.c ps.h register.c register.h resolv.c resolv.h smb.h summary.c summary.h timestamp.h util.c util.h xdlc.c xdlc.h $(DISSECTOR_SOURCES) @@ -173,7 +173,7 @@ packet-pptp.o packet-q2931.o packet-q931.o packet-radius.o packet-raw.o \ packet-rip.o packet-ripng.o packet-rpc.o packet-rsvp.o packet-rtsp.o \ packet-rx.o packet-sap.o packet-sdp.o packet-smb.o packet-sna.o \ -packet-snmp.o packet-sscop.o packet-stat.o packet-tacacs.o packet-tcp.o \ +packet-snmp.o packet-srvloc.o packet-sscop.o packet-stat.o packet-tacacs.o packet-tcp.o \ packet-telnet.o packet-tftp.o packet-tns.o packet-tr.o packet-trmac.o \ packet-udp.o packet-vines.o packet-vlan.o packet-vrrp.o packet-x25.o \ packet-yhoo.o packet-ypbind.o packet-ypserv.o packet-ypxfr.o @@ -228,7 +228,7 @@ .deps/packet-raw.P .deps/packet-rip.P .deps/packet-ripng.P \ .deps/packet-rpc.P .deps/packet-rsvp.P .deps/packet-rtsp.P \ .deps/packet-rx.P .deps/packet-sap.P .deps/packet-sdp.P \ -.deps/packet-smb.P .deps/packet-sna.P .deps/packet-snmp.P \ +.deps/packet-smb.P .deps/packet-sna.P .deps/packet-snmp.P packet-srvloc.P\ .deps/packet-sscop.P .deps/packet-stat.P .deps/packet-tacacs.P \ .deps/packet-tcp.P .deps/packet-telnet.P .deps/packet-tftp.P \ .deps/packet-tns.P .deps/packet-tr.P .deps/packet-trmac.P \
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