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wireshark/packet-fcct.c
Guy Harris 862a1f0e4c Move definitions of value_string tables out of header files and into 
source files, so that they're not defined in every file that includes
the header file, regardless of whether the file uses the table (in which
case it should be defined in one file, and externally referenced in
other files) or not (in which case it should't be defined in that file
at all).

Get rid of a boilerplate comment paragraph that doesn't apply.

svn path=/trunk/; revision=7952
2003-06-30 21:50:18 +00:00

308 lines
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C
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/* packet-fcct.c
* Routines for FC Common Transport Protocol (used by GS3 services)
* Copyright 2001, Dinesh G Dutt <ddutt@andiamo.com>
*
* $Id: packet-fcct.c,v 1.2 2003/06/30 21:50:17 guy Exp $
*
* Ethereal - Network traffic analyzer
* By Gerald Combs <gerald@ethereal.com>
* 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>
#include <string.h>
#ifdef HAVE_SYS_TYPES_H
# include <sys/types.h>
#endif
#ifdef HAVE_NETINET_IN_H
# include <netinet/in.h>
#endif
#include <glib.h>
#ifdef NEED_SNPRINTF_H
# include "snprintf.h"
#endif
#include <epan/packet.h>
#include "etypes.h"
#include "packet-fc.h"
#include "packet-fcct.h"
/* Initialize the protocol and registered fields */
static int proto_fcct = -1;
static int hf_fcct_revision = -1;
static int hf_fcct_inid = -1;
static int hf_fcct_gstype = -1;
static int hf_fcct_gssubtype = -1;
static int hf_fcct_options = -1;
static int hf_fcct_server = -1; /* derived field */
/* Extended preamble fields */
static int hf_fcct_ext_said = -1;
static int hf_fcct_ext_tid = -1;
static int hf_fcct_ext_reqname = -1;
static int hf_fcct_ext_tstamp = -1;
static int hf_fcct_ext_authblk = -1;
/* Initialize the subtree pointers */
static gint ett_fcct = -1;
static gint ett_fcct_ext = -1; /* for the extended header */
const value_string fc_ct_rjt_code_vals [] = {
{FCCT_RJT_INVCMDCODE, "Invalid Cmd Code"},
{FCCT_RJT_INVVERSION, "Invalid Version Level"},
{FCCT_RJT_LOGICALERR, "Logical Error"},
{FCCT_RJT_INVSIZE, "Invalid CT_IU Size"},
{FCCT_RJT_LOGICALBSY, "Logical Busy"},
{FCCT_RJT_PROTOERR, "Protocol Error"},
{FCCT_RJT_GENFAIL, "Unable to Perform Cmd"},
{FCCT_RJT_CMDNOTSUPP, "Cmd Not Supported"},
{0, NULL},
};
static const value_string fc_ct_gstype_vals[] = {
{FCCT_GSTYPE_KEYSVC, "Key Service"},
{FCCT_GSTYPE_ALIASSVC, "Alias Service"},
{FCCT_GSTYPE_MGMTSVC, "Management Service"},
{FCCT_GSTYPE_TIMESVC, "Time Service"},
{FCCT_GSTYPE_DIRSVC, "Directory Service"},
{0, NULL},
};
static const value_string fc_ct_gsserver_vals[] = {
{FCCT_GSRVR_DNS, "dNS"},
{FCCT_GSRVR_IP, "IP"},
{FCCT_GSRVR_FCS, "Fabric Config Server"},
{FCCT_GSRVR_UNS, "Unzoned Name Server"},
{FCCT_GSRVR_FZS, "Fabric Zone Server"},
{FCCT_GSRVR_TS, "Time Server"},
{FCCT_GSRVR_KS, "Key Server"},
{FCCT_GSRVR_AS, "Alias Server"},
{0, NULL},
};
static dissector_table_t fcct_gserver_table;
static dissector_handle_t data_handle;
static guint8
get_gs_server (guint8 gstype, guint8 gssubtype)
{
switch (gstype) {
case FCCT_GSTYPE_KEYSVC:
return FCCT_GSRVR_KS;
case FCCT_GSTYPE_ALIASSVC:
if (gssubtype == FCCT_GSSUBTYPE_AS)
return FCCT_GSRVR_AS;
return FCCT_GSRVR_UNKNOWN;
case FCCT_GSTYPE_MGMTSVC:
if (gssubtype == FCCT_GSSUBTYPE_FCS)
return FCCT_GSRVR_FCS;
else if (gssubtype == FCCT_GSSUBTYPE_UNS)
return FCCT_GSRVR_UNS;
else if (gssubtype == FCCT_GSSUBTYPE_FZS)
return FCCT_GSRVR_FZS;
else return FCCT_GSRVR_UNKNOWN;
case FCCT_GSTYPE_TIMESVC:
if (gssubtype == FCCT_GSSUBTYPE_TS)
return FCCT_GSRVR_TS;
return FCCT_GSRVR_UNKNOWN;
case FCCT_GSTYPE_DIRSVC:
if (gssubtype == FCCT_GSSUBTYPE_DNS)
return FCCT_GSRVR_DNS;
else if (gssubtype == FCCT_GSSUBTYPE_IP)
return FCCT_GSRVR_IP;
return FCCT_GSRVR_UNKNOWN;
default:
return FCCT_GSRVR_UNKNOWN;
}
}
/* Code to actually dissect the packets */
static void
dissect_fcct (tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
{
/* Set up structures needed to add the protocol subtree and manage it */
proto_item *ti;
proto_tree *fcct_tree;
tvbuff_t *next_tvb;
int in_id,
offset = 0;
guint8 server;
fc_ct_preamble cthdr;
/* Make entries in Protocol column and Info column on summary display */
if (check_col(pinfo->cinfo, COL_PROTOCOL))
col_set_str(pinfo->cinfo, COL_PROTOCOL, "FC_CT");
/*
cthdr.revision = tvb_get_guint8 (tvb, offset++);
cthdr.in_id = tvb_get_ntoh24 (tvb, offset);
offset += 3;
cthdr.gstype = tvb_get_guint8 (tvb, offset++);
cthdr.options = tvb_get_guint8 (tvb, offset++);
*/
tvb_memcpy (tvb, (guint8 *)&cthdr, offset, FCCT_PRMBL_SIZE);
cthdr.revision = tvb_get_guint8 (tvb, offset++);
cthdr.in_id = tvb_get_ntoh24 (tvb, offset);
cthdr.opcode = ntohs (cthdr.opcode);
cthdr.maxres_size = ntohs (cthdr.maxres_size);
if (check_col (pinfo->cinfo, COL_INFO)) {
if (cthdr.opcode < FCCT_MSG_REQ_MAX) {
col_append_str (pinfo->cinfo, COL_INFO, " Request");
}
else if (cthdr.opcode == FCCT_MSG_ACC) {
col_append_str (pinfo->cinfo, COL_INFO, " Accept");
}
else if (cthdr.opcode == FCCT_MSG_RJT) {
col_append_fstr (pinfo->cinfo, COL_INFO, " Reject (%s)",
val_to_str (cthdr.rjt_code, fc_ct_rjt_code_vals, "0x%x"));
}
else {
col_append_str (pinfo->cinfo, COL_INFO, " Reserved");
}
}
in_id = cthdr.in_id;
in_id = htonl (in_id) >> 8;
/* Determine server */
server = get_gs_server (cthdr.gstype, cthdr.gssubtype);
if (tree) {
offset = 0;
ti = proto_tree_add_protocol_format (tree, proto_fcct, tvb, 0, FCCT_PRMBL_SIZE,
"FC_CT");
fcct_tree = proto_item_add_subtree (ti, ett_fcct);
proto_tree_add_item (fcct_tree, hf_fcct_revision, tvb, offset++,
sizeof (guint8), 0);
proto_tree_add_string (fcct_tree, hf_fcct_inid, tvb, offset, 3,
fc_to_str ((guint8 *)&in_id));
offset += 3; /* sizeof FC address */
proto_tree_add_item (fcct_tree, hf_fcct_gstype, tvb, offset++,
sizeof (guint8), 0);
proto_tree_add_item (fcct_tree, hf_fcct_gssubtype, tvb, offset,
sizeof (guint8), 0);
proto_tree_add_uint (fcct_tree, hf_fcct_server, tvb, offset++, 1,
server);
proto_tree_add_item (fcct_tree, hf_fcct_options, tvb, offset++,
sizeof (guint8), 0);
}
/* We do not change the starting offset for the next protocol in the
* chain since the fc_ct header is common to the sub-protocols.
*/
next_tvb = tvb_new_subset (tvb, 0, -1, -1);
if (!dissector_try_port (fcct_gserver_table, server, next_tvb, pinfo,
tree)) {
call_dissector (data_handle, next_tvb, pinfo, tree);
}
}
/* Register the protocol with Ethereal */
/* this format is require because a script is used to build the C function
that calls all the protocol registration.
*/
void
proto_register_fcct(void)
{
/* Setup list of header fields See Section 1.6.1 for details*/
static hf_register_info hf[] = {
{ &hf_fcct_revision,
{"Revision", "fcct.revision", FT_UINT8, BASE_DEC, NULL, 0x0, "", HFILL}},
{ &hf_fcct_inid,
{"IN_ID", "fcct.in_id", FT_STRING, BASE_HEX, NULL, 0x0, "", HFILL}},
{ &hf_fcct_gstype,
{"GS Type", "fcct.gstype", FT_UINT8, BASE_HEX, VALS(fc_ct_gstype_vals),
0x0, "", HFILL}},
{ &hf_fcct_gssubtype,
{"GS Subtype", "fcct.gssubtype", FT_UINT8, BASE_HEX, NULL, 0x0,
"", HFILL}},
{ &hf_fcct_server,
{"Server", "fcct.server", FT_UINT8, BASE_HEX,
VALS (fc_ct_gsserver_vals), 0x0,
"Derived from GS Type & Subtype fields", HFILL}},
{ &hf_fcct_options,
{"Options", "fcct.options", FT_UINT8, BASE_HEX, NULL, 0x0, "",
HFILL}},
{ &hf_fcct_ext_said,
{"Auth SAID", "fcct.ext_said", FT_UINT32, BASE_HEX, NULL, 0x0, "",
HFILL}},
{ &hf_fcct_ext_tid,
{"Transaction ID", "fcct.ext_tid", FT_UINT32, BASE_HEX, NULL, 0x0, "",
HFILL}},
{ &hf_fcct_ext_reqname,
{"Requestor Port Name", "fcct_ext_reqnm", FT_BYTES, BASE_HEX, NULL,
0x0, "", HFILL}},
{ &hf_fcct_ext_tstamp,
{"Timestamp", "fcct_ext_tstamp", FT_BYTES, BASE_HEX, NULL, 0x0, "",
HFILL}},
{ &hf_fcct_ext_authblk,
{"Auth Hash Blk", "fcct_ext_authblk", FT_BYTES, BASE_HEX, NULL, 0x0,
"", HFILL}},
};
/* Setup protocol subtree array */
static gint *ett[] = {
&ett_fcct,
&ett_fcct_ext,
};
/* Register the protocol name and description */
proto_fcct = proto_register_protocol("Fibre Channel Common Transport", "FC_CT", "fcct");
/* Required function calls to register the header fields and subtrees used */
proto_register_field_array(proto_fcct, hf, array_length(hf));
proto_register_subtree_array(ett, array_length(ett));
fcct_gserver_table = register_dissector_table ("fcct.server",
"Server",
FT_UINT8, BASE_HEX);
}
/* If this dissector uses sub-dissector registration add a registration routine.
This format is required because a script is used to find these routines and
create the code that calls these routines.
*/
void
proto_reg_handoff_fcct (void)
{
dissector_handle_t fcct_handle;
fcct_handle = create_dissector_handle (dissect_fcct, proto_fcct);
dissector_add("fc.ftype", FC_FTYPE_FCCT, fcct_handle);
data_handle = find_dissector ("data");
}
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