![Guy Harris](/assets/img/avatar_default.png)
dynamically-assigned "ett_" integer values, assigned by "proto_register_subtree_array()"; this: obviates the need to update "packet.h" whenever you add a new subtree type - you only have to add a call to "proto_register_subtree_array()" to a "register" routine and an array of pointers to "ett_", if they're not already there, and add a pointer to the new "ett_" variable to the array, if they are there; would allow run-time-loaded dissectors to allocate subtree types when they're loaded. svn path=/trunk/; revision=1043
191 lines
5.2 KiB
C
191 lines
5.2 KiB
C
/* packet-bootparams.c
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* Routines for bootparams dissection
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*
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* $Id: packet-bootparams.c,v 1.6 1999/11/16 11:42:27 guy Exp $
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*
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* Ethereal - Network traffic analyzer
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* By Gerald Combs <gerald@unicom.net>
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* Copyright 1998 Gerald Combs
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*
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* Copied from packet-smb.c
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#ifdef HAVE_SYS_TYPES_H
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#include <sys/types.h>
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#endif
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#ifdef HAVE_NETINET_IN_H
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# include <netinet/in.h>
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#endif
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#include <string.h>
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#include <glib.h>
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#include "packet-rpc.h"
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#include "packet-bootparams.h"
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static int proto_bootparams = -1;
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static int hf_bootparams_host = -1;
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static int hf_bootparams_domain = -1;
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static int hf_bootparams_fileid = -1;
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static int hf_bootparams_filepath = -1;
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static int hf_bootparams_hostaddr = -1;
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static int hf_bootparams_routeraddr = -1;
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static gint ett_bootparams = -1;
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int dissect_bp_address(const u_char *pd, int offset, frame_data *fd,
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proto_tree *tree, int hfindex)
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{
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guint32 type;
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guint32 ipaddr;
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/* get the address type */
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if ( !BYTES_ARE_IN_FRAME(offset, 1)) return offset;
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type = pntohl(&pd[offset]); /* type of address */
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#if 0
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proto_tree_add_item(tree, hf_bootparams_addresstype,
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offset, 4, type);
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#endif
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offset += 4;
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if ( type != 1 ) /* only know how to handle this type of address */
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{
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return offset;
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}
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/* get the address itself - weird ass format */
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if ( ! BYTES_ARE_IN_FRAME(offset, 16)) return offset;
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ipaddr = (pd[offset+3]<<24) + (pd[offset+7]<<16) +
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(pd[offset+11]<<8) + (pd[offset+15]);
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proto_tree_add_item(tree, hfindex,
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offset, 16, ntohl(ipaddr));
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offset += 16;
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return offset;
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}
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/* Dissect a getfile call */
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int dissect_getfile_call(const u_char *pd, int offset, frame_data *fd,
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proto_tree *tree)
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{
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if ( tree )
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{
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offset = dissect_rpc_string(pd,offset,fd,tree,hf_bootparams_host);
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offset = dissect_rpc_string(pd,offset,fd,tree,hf_bootparams_fileid);
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}
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return offset;
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}
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/* Dissect a getfile reply */
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int dissect_getfile_reply(const u_char *pd, int offset, frame_data *fd,
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proto_tree *tree)
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{
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if ( tree )
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{
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offset = dissect_rpc_string(pd,offset,fd,tree,hf_bootparams_host);
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offset = dissect_bp_address(pd,offset,fd,tree,hf_bootparams_hostaddr);
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offset = dissect_rpc_string(pd,offset,fd,tree,hf_bootparams_filepath);
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}
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return offset;
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}
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/* Dissect a whoami call */
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int dissect_whoami_call(const u_char *pd, int offset, frame_data *fd,
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proto_tree *tree)
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{
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if ( tree )
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{
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offset = dissect_bp_address(pd,offset,fd,tree,hf_bootparams_hostaddr);
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}
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return offset;
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}
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/* Dissect a whoami reply */
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int dissect_whoami_reply(const u_char *pd, int offset, frame_data *fd,
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proto_tree *tree)
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{
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if ( tree )
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{
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offset = dissect_rpc_string(pd,offset,fd,tree,hf_bootparams_host);
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offset = dissect_rpc_string(pd,offset,fd,tree,hf_bootparams_domain);
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offset = dissect_bp_address(pd,offset,fd,tree,hf_bootparams_routeraddr);
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}
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return offset;
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}
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/* proc number, "proc name", dissect_request, dissect_reply */
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/* NULL as function pointer means: take the generic one. */
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const vsff bootparams1_proc[] = {
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{ BOOTPARAMSPROC_NULL, "NULL",
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NULL, NULL },
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{ BOOTPARAMSPROC_WHOAMI, "WHOAMI",
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dissect_whoami_call, dissect_whoami_reply },
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{ BOOTPARAMSPROC_GETFILE, "GETFILE",
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dissect_getfile_call, dissect_getfile_reply },
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{ 0, NULL, NULL, NULL }
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};
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/* end of Bootparams version 1 */
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void
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proto_register_bootparams(void)
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{
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static hf_register_info hf[] = {
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{ &hf_bootparams_host, {
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"Client Host", "bootparams.host", FT_STRING, BASE_DEC,
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NULL, 0, "Client Host" }},
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{ &hf_bootparams_domain, {
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"Client Domain", "bootparams.domain", FT_STRING, BASE_DEC,
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NULL, 0, "Client Domain" }},
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{ &hf_bootparams_fileid, {
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"File ID", "bootparams.fileid", FT_STRING, BASE_DEC,
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NULL, 0, "File ID" }},
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{ &hf_bootparams_filepath, {
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"File Path", "bootparams.filepath", FT_STRING, BASE_DEC,
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NULL, 0, "File Path" }},
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{ &hf_bootparams_hostaddr, {
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"Client Address", "bootparams.hostaddr", FT_IPv4, BASE_DEC,
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NULL, 0, "Address" }},
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{ &hf_bootparams_routeraddr, {
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"Router Address", "bootparams.routeraddr", FT_IPv4, BASE_DEC,
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NULL, 0, "Router Address" }},
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};
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static gint *ett[] = {
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&ett_bootparams,
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};
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proto_bootparams = proto_register_protocol("Boot Parameters", "bootparams");
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proto_register_field_array(proto_bootparams, hf, array_length(hf));
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proto_register_subtree_array(ett, array_length(ett));
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/* Register the protocol as RPC */
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rpc_init_prog(proto_bootparams, BOOTPARAMS_PROGRAM, ett_bootparams);
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/* Register the procedure tables */
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rpc_init_proc_table(BOOTPARAMS_PROGRAM, 1, bootparams1_proc);
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}
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