forked from osmocom/wireshark
![Anders Broman](/assets/img/avatar_default.png)
Modification to (proto.h) is made to add an additional expert group type of PI_REQUEST_CODE to allow Request tag information to be passed to the expert tap. This is for such reasons where a dissector would like to echo specific information about certain types of requests. For example: NCP connection request is really a request not a REPLY_CODE. Same is true for the TCP SYN request. Changes to packet-ncp.c 1. Server broadcast message flag. Now indicates if the message is a pending message or an oplock clear notification. 2. Cleanup of packet signature detection process. Previous method had some flaws so I redesigned it. Appears to be solid now. 3. Echo NCP Server Session information to expert tap. Note on item #3: NCP Connection+Task = NCP Session, a Single connection can have many tasks. The server sees each connection/task as a unique session. For this reason the NCP session information is now echoed to the expert composite statistics so that you can easily identify the different NCP processes and sessions. It is important to NCP analysis to understand that each session is most likely a different program on the requesting host sharing the same NCP connection. Changes to packet-ncp2222.inc 1. Comment out the echo of NCP connection info to expert tap. Replaced by NCP sessions. 2. Add displayEID in request decode (resolves Coverity defect for dead code in NCP dissector) Changes to ncp2222.py 1. Fix for endian display of bindery object type in NCP 0x1720. 2. Fix for size of bindery object type to 2 bytes instead of 4 to match other bindery NCP's. svn path=/trunk/; revision=17636
169 lines
4.2 KiB
C
169 lines
4.2 KiB
C
/* packet-ncp-int.h
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* Structures and functions for NetWare Core Protocol.
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* Gilbert Ramirez <gram@alumni.rice.edu>
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* Modified for NDS support by Greg Morris (gmorris@novell.com)
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*
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* Portions Copyright (c) Gilbert Ramirez 2000-2002
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* Portions Copyright (c) Novell, Inc. 2000-2003
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*
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* $Id$
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*
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* Ethereal - Network traffic analyzer
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* By Gerald Combs <gerald@ethereal.com>
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* Copyright 2000 Gerald Combs
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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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#ifndef __PACKET_NCP_INT_H__
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#define __PACKET_NCP_INT_H__
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#include <epan/expert.h>
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typedef struct _ptvc_record ptvc_record;
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typedef struct _sub_ptvc_record sub_ptvc_record;
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struct _ptvc_record {
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int *hf_ptr;
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gint length;
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const sub_ptvc_record *sub_ptvc_rec;
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unsigned int endianness : 1; /* 0=BE, 1=LE */
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unsigned int var_index : 2;
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unsigned int repeat_index : 2;
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unsigned int req_cond_index : 8;
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unsigned int special_fmt : 2;
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};
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/*
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* Every NCP packet has this common header (except for burst packets).
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*/
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struct ncp_common_header {
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guint16 type;
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guint8 sequence;
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guint8 conn_low;
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guint8 task;
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guint8 conn_high; /* type=0x5555 doesn't have this */
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};
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#define NCP_FMT_NONE 0
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#define NCP_FMT_NW_DATE 1
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#define NCP_FMT_NW_TIME 2
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#define NCP_FMT_UNICODE 3
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extern gboolean nds_defragment;
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extern gboolean nds_echo_eid;
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extern gboolean ncp_echo_err;
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extern gboolean ncp_echo_conn;
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extern gboolean ncp_echo_server;
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extern gboolean ncp_echo_file;
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struct _sub_ptvc_record {
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gint *ett;
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const char *descr;
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const ptvc_record *ptvc_rec;
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};
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typedef struct {
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const char *dfilter_text;
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dfilter_t *dfilter;
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} conditional_record;
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typedef struct {
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int *hf_ptr;
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const char *first_string;
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const char *repeat_string;
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} info_string_t;
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struct novell_tap {
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int stat;
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int hdr;
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};
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typedef struct novell_tap _novell_tap;
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typedef struct {
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guint8 error_in_packet;
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gint ncp_error_index;
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} error_equivalency;
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typedef struct {
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guint8 func;
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guint8 subfunc;
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guint8 has_subfunc;
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const gchar* name;
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gint group;
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const ptvc_record *request_ptvc;
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const ptvc_record *reply_ptvc;
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const error_equivalency *errors;
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const int *req_cond_indexes;
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unsigned int req_cond_size_type;
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const info_string_t *req_info_str;
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} ncp_record;
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typedef struct {
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const ncp_record *ncp_rec;
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gboolean *req_cond_results;
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guint32 req_frame_num;
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nstime_t req_frame_time;
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guint32 req_nds_flags;
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guint8 nds_request_verb;
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guint8 nds_version;
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char object_name[256];
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gboolean nds_frag;
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guint32 nds_end_frag;
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guint32 nds_frag_num;
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} ncp_req_hash_value;
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void dissect_ncp_request(tvbuff_t*, packet_info*, guint32,
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guint8, guint16, proto_tree *volatile);
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void dissect_ncp_reply(tvbuff_t *, packet_info*, guint32, guint8,
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guint16, proto_tree*, struct novell_tap*);
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void dissect_ping_req(tvbuff_t *, packet_info*, guint32, guint8,
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guint16, proto_tree*);
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void dissect_nds_request(tvbuff_t*, packet_info*, guint32,
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guint8, guint16, proto_tree*);
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void nds_defrag(tvbuff_t*, packet_info*, guint32,
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guint8, guint16, proto_tree*, struct novell_tap*);
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extern int proto_ncp;
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extern gint ett_ncp;
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extern gint ett_nds;
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extern gint ett_nds_segments;
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extern gint ett_nds_segment;
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/*extern dissector_handle_t nds_data_handle;*/
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extern GHashTable *nds_fragment_table;
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extern GHashTable *nds_reassembled_table;
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/*
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* NCP packet types.
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*/
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#define NCP_ALLOCATE_SLOT 0x1111
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#define NCP_SERVICE_REQUEST 0x2222
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#define NCP_SERVICE_REPLY 0x3333
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#define NCP_WATCHDOG 0x3e3e
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#define NCP_DEALLOCATE_SLOT 0x5555
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#define NCP_BURST_MODE_XFER 0x7777
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#define NCP_POSITIVE_ACK 0x9999
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#define NCP_BROADCAST_SLOT 0xbbbb
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#define NCP_LIP_ECHO 0x4c69
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#endif
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