/* packet-klm.c 2001 Ronnie Sahlberg * Routines for klm dissection * * $Id: packet-klm.c,v 1.13 2003/08/17 21:34:22 sahlberg Exp $ * * Ethereal - Network traffic analyzer * By Gerald Combs * 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 "packet-rpc.h" #include "packet-nfs.h" #include "packet-klm.h" static int proto_klm = -1; static int hf_klm_procedure_v1 = -1; static int hf_klm_exclusive = -1; static int hf_klm_lock = -1; static int hf_klm_servername = -1; static int hf_klm_pid = -1; static int hf_klm_offset = -1; static int hf_klm_len = -1; static int hf_klm_stats = -1; static int hf_klm_holder = -1; static int hf_klm_block = -1; static gint ett_klm = -1; static gint ett_klm_lock = -1; static gint ett_klm_holder = -1; static const value_string names_klm_stats[] = { #define KLM_GRANTED 0 { KLM_GRANTED, "KLM_GRANTED" }, #define KLM_DENIED 1 { KLM_DENIED, "KLM_DENIED" }, #define KLM_DENIED_NOLOCKS 2 { KLM_DENIED_NOLOCKS, "KLM_DENIED_NOLOCKS" }, #define KLM_WORKING 3 { KLM_WORKING, "KLM_WORKING" }, { 0, NULL } }; static int dissect_holder(tvbuff_t *tvb, proto_tree *tree, int offset) { proto_item* lock_item = NULL; proto_tree* lock_tree = NULL; lock_item = proto_tree_add_item(tree, hf_klm_holder, tvb, offset, -1, FALSE); lock_tree = proto_item_add_subtree(lock_item, ett_klm_holder); offset = dissect_rpc_bool( tvb, lock_tree, hf_klm_exclusive, offset); offset = dissect_rpc_uint32(tvb, lock_tree, hf_klm_pid, offset); offset = dissect_rpc_uint32(tvb, lock_tree, hf_klm_offset, offset); offset = dissect_rpc_uint32(tvb, lock_tree, hf_klm_len, offset); return offset; } static int dissect_lock(tvbuff_t *tvb, packet_info* pinfo, proto_tree *tree, int offset) { proto_item* lock_item = NULL; proto_tree* lock_tree = NULL; lock_item = proto_tree_add_item(tree, hf_klm_lock, tvb, offset, -1, FALSE); lock_tree = proto_item_add_subtree(lock_item, ett_klm_lock); offset = dissect_rpc_string(tvb, lock_tree, hf_klm_servername, offset, NULL); offset = dissect_nfs_fh3(tvb, offset, pinfo, lock_tree,"fh", NULL); offset = dissect_rpc_uint32(tvb, lock_tree, hf_klm_pid, offset); offset = dissect_rpc_uint32(tvb, lock_tree, hf_klm_offset, offset); offset = dissect_rpc_uint32(tvb, lock_tree, hf_klm_len, offset); return offset; } static int dissect_klm_unlock_call(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree) { offset = dissect_lock(tvb, pinfo, tree, offset); return offset; } static int dissect_klm_stat_reply(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree) { offset = dissect_rpc_uint32(tvb, tree, hf_klm_stats, offset); return offset; } static int dissect_klm_lock_call(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree) { offset = dissect_rpc_bool( tvb, tree, hf_klm_block, offset); offset = dissect_rpc_bool( tvb, tree, hf_klm_exclusive, offset); offset = dissect_lock(tvb, pinfo, tree, offset); return offset; } static int dissect_klm_test_reply(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree) { gint32 stats; stats = tvb_get_ntohl(tvb, offset); offset = dissect_rpc_uint32(tvb, tree, hf_klm_stats, offset); if (stats == KLM_DENIED) { offset = dissect_holder(tvb, tree, offset); } return offset; } static int dissect_klm_test_call(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree) { offset = dissect_rpc_bool( tvb, tree, hf_klm_exclusive, offset); offset = dissect_lock(tvb, pinfo, tree, offset); return offset; } /* proc number, "proc name", dissect_request, dissect_reply */ /* NULL as function pointer means: type of arguments is "void". */ static const vsff klm1_proc[] = { { KLMPROC_TEST, "TEST", dissect_klm_test_call, dissect_klm_test_reply }, { KLMPROC_LOCK, "LOCK", dissect_klm_lock_call, dissect_klm_stat_reply }, { KLMPROC_CANCEL, "CANCEL", dissect_klm_lock_call, dissect_klm_stat_reply }, { KLMPROC_UNLOCK, "UNLOCK", dissect_klm_unlock_call, dissect_klm_stat_reply }, { 0, NULL, NULL, NULL } }; static const value_string klm1_proc_vals[] = { { KLMPROC_TEST, "TEST" }, { KLMPROC_LOCK, "LOCK" }, { KLMPROC_CANCEL, "CANCEL" }, { KLMPROC_UNLOCK, "UNLOCK" }, { 0, NULL} }; void proto_register_klm(void) { static struct true_false_string tfs_exclusive = { "Exclusive", "Not exclusive" }; static struct true_false_string tfs_block = { "Block", "Do not block" }; static hf_register_info hf[] = { { &hf_klm_procedure_v1, { "V1 Procedure", "klm.procedure_v1", FT_UINT32, BASE_DEC, VALS(klm1_proc_vals), 0, "V1 Procedure", HFILL }}, { &hf_klm_exclusive, { "exclusive", "klm.exclusive", FT_BOOLEAN, BASE_NONE, &tfs_exclusive, 0, "Exclusive lock", HFILL }}, { &hf_klm_lock, { "lock", "klm.lock", FT_NONE, BASE_NONE, NULL, 0, "KLM lock structure", HFILL }}, { &hf_klm_servername, { "server name", "klm.servername", FT_STRING, BASE_NONE, NULL, 0, "Server name", HFILL }}, { &hf_klm_pid, { "pid", "klm.pid", FT_UINT32, BASE_DEC, NULL, 0, "ProcessID", HFILL }}, { &hf_klm_offset, { "offset", "klm.offset", FT_UINT32, BASE_DEC, NULL, 0, "File offset", HFILL }}, { &hf_klm_len, { "length", "klm.len", FT_UINT32, BASE_DEC, NULL, 0, "Length of lock region", HFILL }}, { &hf_klm_stats, { "stats", "klm.stats", FT_UINT32, BASE_DEC, VALS(names_klm_stats), 0, "stats", HFILL }}, { &hf_klm_holder, { "holder", "klm.holder", FT_NONE, BASE_NONE, NULL, 0, "KLM lock holder", HFILL }}, { &hf_klm_block, { "block", "klm.block", FT_BOOLEAN, BASE_NONE, &tfs_block, 0, "Block", HFILL }}, }; static gint *ett[] = { &ett_klm, &ett_klm_lock, &ett_klm_holder, }; proto_klm = proto_register_protocol("Kernel Lock Manager", "KLM", "klm"); proto_register_field_array(proto_klm, hf, array_length(hf)); proto_register_subtree_array(ett, array_length(ett)); } void proto_reg_handoff_klm(void) { /* Register the protocol as RPC */ rpc_init_prog(proto_klm, KLM_PROGRAM, ett_klm); /* Register the procedure tables */ rpc_init_proc_table(KLM_PROGRAM, 1, klm1_proc, hf_klm_procedure_v1); }