1 /* packet-klm.c 2001 Ronnie Sahlberg <See AUTHORS for email>
2 * Routines for klm dissection
4 * $Id: packet-klm.c,v 1.8 2002/04/03 13:24:12 girlich Exp $
6 * Ethereal - Network traffic analyzer
7 * By Gerald Combs <gerald@ethereal.com>
8 * Copyright 1998 Gerald Combs
10 * This program is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU General Public License
12 * as published by the Free Software Foundation; either version 2
13 * of the License, or (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
30 #ifdef HAVE_SYS_TYPES_H
31 #include <sys/types.h>
35 #include "packet-rpc.h"
36 #include "packet-nfs.h"
37 #include "packet-klm.h"
39 static int proto_klm = -1;
40 static int hf_klm_exclusive = -1;
41 static int hf_klm_lock = -1;
42 static int hf_klm_servername = -1;
43 static int hf_klm_pid = -1;
44 static int hf_klm_offset = -1;
45 static int hf_klm_len = -1;
46 static int hf_klm_stats = -1;
47 static int hf_klm_holder = -1;
48 static int hf_klm_block = -1;
50 static gint ett_klm = -1;
51 static gint ett_klm_lock = -1;
52 static gint ett_klm_holder = -1;
54 static const value_string names_klm_stats[] =
57 { KLM_GRANTED, "KLM_GRANTED" },
59 { KLM_DENIED, "KLM_DENIED" },
60 #define KLM_DENIED_NOLOCKS 2
61 { KLM_DENIED_NOLOCKS, "KLM_DENIED_NOLOCKS" },
63 { KLM_WORKING, "KLM_WORKING" },
68 dissect_holder(tvbuff_t *tvb, proto_tree *tree, int offset)
70 proto_item* lock_item = NULL;
71 proto_tree* lock_tree = NULL;
73 lock_item = proto_tree_add_item(tree, hf_klm_holder, tvb,
76 lock_tree = proto_item_add_subtree(lock_item, ett_klm_holder);
78 offset = dissect_rpc_bool( tvb, lock_tree,
79 hf_klm_exclusive, offset);
81 offset = dissect_rpc_uint32(tvb, lock_tree,
84 offset = dissect_rpc_uint32(tvb, lock_tree,
85 hf_klm_offset, offset);
87 offset = dissect_rpc_uint32(tvb, lock_tree,
94 dissect_lock(tvbuff_t *tvb, packet_info* pinfo, proto_tree *tree, int offset)
96 proto_item* lock_item = NULL;
97 proto_tree* lock_tree = NULL;
99 lock_item = proto_tree_add_item(tree, hf_klm_lock, tvb,
102 lock_tree = proto_item_add_subtree(lock_item, ett_klm_lock);
104 offset = dissect_rpc_string(tvb, lock_tree,
105 hf_klm_servername, offset, NULL);
107 offset = dissect_nfs_fh3(tvb, offset, pinfo, lock_tree,"fh");
109 offset = dissect_rpc_uint32(tvb, lock_tree,
112 offset = dissect_rpc_uint32(tvb, lock_tree,
113 hf_klm_offset, offset);
115 offset = dissect_rpc_uint32(tvb, lock_tree,
122 dissect_klm_unlock_call(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree)
124 offset = dissect_lock(tvb, pinfo, tree, offset);
130 dissect_klm_stat_reply(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree)
133 offset = dissect_rpc_uint32(tvb, tree,
134 hf_klm_stats, offset);
140 dissect_klm_lock_call(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree)
142 offset = dissect_rpc_bool( tvb, tree,
143 hf_klm_block, offset);
145 offset = dissect_rpc_bool( tvb, tree,
146 hf_klm_exclusive, offset);
148 offset = dissect_lock(tvb, pinfo, tree, offset);
154 dissect_klm_test_reply(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree)
158 stats = tvb_get_ntohl(tvb, offset);
160 offset = dissect_rpc_uint32(tvb, tree,
161 hf_klm_stats, offset);
163 if (stats == KLM_DENIED) {
164 offset = dissect_holder(tvb, tree, offset);
171 dissect_klm_test_call(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree)
173 offset = dissect_rpc_bool( tvb, tree,
174 hf_klm_exclusive, offset);
176 offset = dissect_lock(tvb, pinfo, tree, offset);
182 /* proc number, "proc name", dissect_request, dissect_reply */
183 /* NULL as function pointer means: type of arguments is "void". */
184 static const vsff klm1_proc[] = {
185 { KLMPROC_TEST, "TEST",
186 dissect_klm_test_call, dissect_klm_test_reply },
187 { KLMPROC_LOCK, "LOCK",
188 dissect_klm_lock_call, dissect_klm_stat_reply },
189 { KLMPROC_CANCEL, "CANCEL",
190 dissect_klm_lock_call, dissect_klm_stat_reply },
191 { KLMPROC_UNLOCK, "UNLOCK",
192 dissect_klm_unlock_call, dissect_klm_stat_reply },
193 { 0, NULL, NULL, NULL }
197 proto_register_klm(void)
199 static struct true_false_string tfs_exclusive = { "Exclusive", "Not exclusive" };
200 static struct true_false_string tfs_block = { "Block", "Do not block" };
202 static hf_register_info hf[] = {
203 { &hf_klm_exclusive, {
204 "exclusive", "klm.exclusive", FT_BOOLEAN, BASE_NONE,
205 &tfs_exclusive, 0, "Exclusive lock", HFILL }},
208 "lock", "klm.lock", FT_NONE, BASE_NONE,
209 NULL, 0, "KLM lock structure", HFILL }},
211 { &hf_klm_servername, {
212 "server name", "klm.servername", FT_STRING, BASE_NONE,
213 NULL, 0, "Server name", HFILL }},
216 "pid", "klm.pid", FT_UINT32, BASE_DEC,
217 NULL, 0, "ProcessID", HFILL }},
220 "offset", "klm.offset", FT_UINT32, BASE_DEC,
221 NULL, 0, "File offset", HFILL }},
224 "length", "klm.len", FT_UINT32, BASE_DEC,
225 NULL, 0, "Length of lock region", HFILL }},
228 "stats", "klm.stats", FT_UINT32, BASE_DEC,
229 VALS(names_klm_stats), 0, "stats", HFILL }},
232 "holder", "klm.holder", FT_NONE, BASE_NONE,
233 NULL, 0, "KLM lock holder", HFILL }},
236 "block", "klm.block", FT_BOOLEAN, BASE_NONE,
237 &tfs_block, 0, "Block", HFILL }},
241 static gint *ett[] = {
247 proto_klm = proto_register_protocol("Kernel Lock Manager",
249 proto_register_field_array(proto_klm, hf, array_length(hf));
250 proto_register_subtree_array(ett, array_length(ett));
254 proto_reg_handoff_klm(void)
256 /* Register the protocol as RPC */
257 rpc_init_prog(proto_klm, KLM_PROGRAM, ett_klm);
258 /* Register the procedure tables */
259 rpc_init_proc_table(KLM_PROGRAM, 1, klm1_proc);