epan/dissectors/packet-ncp-int.h

   1 /* packet-ncp-int.h
   2  * Structures and functions for NetWare Core Protocol.
   3  * Gilbert Ramirez <gram@alumni.rice.edu>
   4  * Modified for NDS support by Greg Morris (gmorris@novell.com)
   5  *
   6  * Portions Copyright (c) Gilbert Ramirez 2000-2002
   7  * Portions Copyright (c) Novell, Inc. 2000-2003
   8  *
   9  * $Id$
  10  *
  11  * Wireshark - Network traffic analyzer
  12  * By Gerald Combs <gerald@wireshark.org>
  13  * Copyright 2000 Gerald Combs
  14  *
  15  * This program is free software; you can redistribute it and/or
  16  * modify it under the terms of the GNU General Public License
  17  * as published by the Free Software Foundation; either version 2
  18  * of the License, or (at your option) any later version.
  19  *
  20  * This program is distributed in the hope that it will be useful,
  21  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  22  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  23  * GNU General Public License for more details.
  24  *
  25  * You should have received a copy of the GNU General Public License
  26  * along with this program; if not, write to the Free Software
  27  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  28  */
  29
  30 #ifndef __PACKET_NCP_INT_H__
  31 #define __PACKET_NCP_INT_H__
  32
  33 #include <epan/expert.h>
  34
  35 typedef struct _ptvc_record ptvc_record;
  36 typedef struct _sub_ptvc_record sub_ptvc_record;
  37
  38 struct _ptvc_record {
  39         int                     *hf_ptr;
  40         gint                    length;
  41         const sub_ptvc_record   *sub_ptvc_rec;
  42         unsigned int    endianness      : 1; /* 0=BE, 1=LE */
  43         unsigned int    var_index       : 2;
  44         unsigned int    repeat_index    : 2;
  45         unsigned int    req_cond_index  : 8;
  46         unsigned int    special_fmt     : 2;
  47 };
  48
  49 /*
  50  * Every NCP packet has this common header (except for burst packets).
  51  */
  52 struct ncp_common_header {
  53         guint16 type;
  54         guint8  sequence;
  55         guint8  conn_low;
  56         guint8  task;
  57         guint8  conn_high; /* type=0x5555 doesn't have this */
  58 };
  59
  60 #define NCP_FMT_NONE                    0
  61 #define NCP_FMT_NW_DATE                 1
  62 #define NCP_FMT_NW_TIME                 2
  63 #define NCP_FMT_UNICODE         3
  64
  65 extern gboolean nds_defragment;
  66 extern gboolean nds_echo_eid;
  67 extern gboolean ncp_echo_err;
  68 extern gboolean ncp_echo_conn;
  69 extern gboolean ncp_echo_server;
  70 extern gboolean ncp_echo_file;
  71 extern gboolean ncp_newstyle;
  72
  73 struct _sub_ptvc_record {
  74         gint                    *ett;
  75         const char              *descr;
  76         const ptvc_record       *ptvc_rec;
  77 };
  78
  79 typedef struct {
  80         const char              *dfilter_text;
  81         dfilter_t               *dfilter;
  82 } conditional_record;
  83
  84 typedef struct {
  85         int                     *hf_ptr;
  86         const char              *first_string;
  87         const char              *repeat_string;
  88 } info_string_t;
  89
  90
  91 struct novell_tap {
  92         int stat;
  93         int hdr;
  94 };
  95
  96 typedef struct novell_tap _novell_tap;
  97
  98 typedef struct {
  99         guint8                  error_in_packet;
 100         gint                    ncp_error_index;
 101 } error_equivalency;
 102
 103 typedef struct {
 104         guint8                  func;
 105         guint8                  subfunc;
 106         guint8                  has_subfunc;
 107         const gchar*            name;
 108         gint                    group;
 109         const ptvc_record       *request_ptvc;
 110         const ptvc_record       *reply_ptvc;
 111         const error_equivalency *errors;
 112         const int               *req_cond_indexes;
 113         unsigned int            req_cond_size_type;
 114         const info_string_t     *req_info_str;
 115 } ncp_record;
 116
 117 typedef struct {
 118         const ncp_record        *ncp_rec;
 119         gboolean                *req_cond_results;
 120         guint32                 req_frame_num;
 121         nstime_t                req_frame_time;
 122         guint16                 length;
 123         guint32                 req_nds_flags;
 124         guint32                 req_nds_prot_flags;
 125         guint8                  nds_request_verb;
 126         guint8                  nds_version;
 127         char                    object_name[256];
 128         gboolean                nds_frag;
 129         guint32                 nds_end_frag;
 130         guint32                 nds_frag_num;
 131         guint16                 req_mask;
 132         guint16                 req_mask_ext;
 133         guint32                 nds_frag_flags;
 134 } ncp_req_hash_value;
 135
 136 void dissect_ncp_request(tvbuff_t*, packet_info*, guint32,
 137                 guint8, guint16, proto_tree *volatile);
 138
 139 void dissect_ncp_reply(tvbuff_t *, packet_info*, guint32, guint8,
 140                 guint16, proto_tree*, struct novell_tap*);
 141
 142 void dissect_ping_req(tvbuff_t *, packet_info*, guint32, guint8,
 143                 guint16, proto_tree*);
 144
 145 void dissect_nds_request(tvbuff_t*, packet_info*, guint32,
 146                 guint8, guint16, proto_tree*);
 147
 148 void nds_defrag(tvbuff_t*, packet_info*, guint32,
 149                 guint8, guint16, proto_tree*, struct novell_tap*);
 150
 151 extern int proto_ncp;
 152 extern gint ett_ncp;
 153 extern gint ett_nds;
 154 extern gint ett_nds_segments;
 155 extern gint ett_nds_segment;
 156
 157 /*extern dissector_handle_t nds_data_handle;*/
 158
 159 /*
 160  * NCP packet types.
 161  */
 162 #define NCP_ALLOCATE_SLOT       0x1111
 163 #define NCP_SERVICE_REQUEST     0x2222
 164 #define NCP_SERVICE_REPLY       0x3333
 165 #define NCP_WATCHDOG            0x3e3e
 166 #define NCP_DEALLOCATE_SLOT     0x5555
 167 #define NCP_BURST_MODE_XFER     0x7777
 168 #define NCP_POSITIVE_ACK        0x9999
 169 #define NCP_BROADCAST_SLOT      0xbbbb
 170 #define NCP_LIP_ECHO            0x4c69
 171
 172 #endif