forked from osmocom/wireshark
c6097bf684
The RPC layer itself handles all this stuff. svn path=/trunk/; revision=2271
400 lines
12 KiB
C
400 lines
12 KiB
C
/* packet-nlm.c
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* Routines for nlm dissection
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*
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* $Id: packet-nlm.c,v 1.9 2000/08/14 11:36:02 girlich Exp $
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*
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* Ethereal - Network traffic analyzer
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* By Gerald Combs <gerald@zing.org>
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* Copyright 1998 Gerald Combs
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*
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* Copied from packet-mount.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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#include "packet-rpc.h"
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#include "packet-nfs.h"
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#include "packet-nlm.h"
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/*
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* NFS Lock Manager protocol specs can only be found in actual
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* implementations or in the nice book:
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* Brent Callaghan: "NFS Illustrated", Addison-Wesley, ISBN 0-201-32570-5
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* which I use here as reference (BC).
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*/
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static int proto_nlm = -1;
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static int hf_nlm_cookie = -1;
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static int hf_nlm_block = -1;
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static int hf_nlm_exclusive = -1;
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static int hf_nlm_lock = -1;
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static int hf_nlm_lock_caller_name = -1;
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static int hf_nlm_lock_owner = -1;
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static int hf_nlm_lock_svid = -1;
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static int hf_nlm_lock_l_offset = -1;
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static int hf_nlm_lock_l_len = -1;
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static int hf_nlm_reclaim = -1;
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static int hf_nlm_state = -1;
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static gint ett_nlm = -1;
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static gint ett_nlm_lock = -1;
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const value_string names_nlm_state[] =
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{
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/* NLM_GRANTED is the function number 5 and the state code 0.
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* So we use for the state the postfix _S.
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*/
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#define NLM_GRANTED_S 0
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{ NLM_GRANTED_S, "NLM_GRANTED" },
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#define NLM_DENIED 1
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{ NLM_DENIED, "NLM_DENIED" },
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#define NLM_DENIED_NOLOCKS 2
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{ NLM_DENIED_NOLOCKS, "NLM_DENIED_NOLOCKS" },
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#define NLM_BLOCKED 3
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{ NLM_BLOCKED, "NLM_BLOCKED" },
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#define NLM_DENIED_GRACE_PERIOD 4
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{ NLM_DENIED_GRACE_PERIOD, "NLM_DENIED_GRACE_PERIOD" },
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#define NLM_DEADLCK 5
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{ NLM_DEADLCK, "NLM_DEADLCK" },
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#define NLM_ROFS 6
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{ NLM_ROFS, "NLM_ROFS" },
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#define NLM_STALE_FH 7
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{ NLM_STALE_FH, "NLM_STALE_FH" },
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#define NLM_BIG 8
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{ NLM_BIG, "NLM_BIG" },
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#define NLM_FAILED 9
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{ NLM_FAILED, "NLM_FAILED" },
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{ 0, NULL }
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};
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/* generic dissecting functions */
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static int
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dissect_nlm_lock(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int version, int offset)
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{
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proto_item* lock_item = NULL;
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proto_tree* lock_tree = NULL;
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const guint8 *pd;
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int compat_offset;
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tvb_compat(tvb, &pd, &compat_offset);
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if (tree) {
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lock_item = proto_tree_add_item(tree, hf_nlm_lock, tvb,
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offset, tvb_length_remaining(tvb, offset), FALSE);
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if (lock_item)
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lock_tree = proto_item_add_subtree(lock_item, ett_nlm_lock);
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}
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offset = dissect_rpc_string_tvb(tvb,pinfo,lock_tree,
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hf_nlm_lock_caller_name, offset, NULL);
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offset = dissect_nfs_fh3(pd, compat_offset+offset, pinfo->fd, lock_tree,"fh") - compat_offset;
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offset = dissect_rpc_data_tvb(tvb, pinfo, lock_tree, hf_nlm_lock_owner, offset);
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offset = dissect_rpc_uint32_tvb(tvb, pinfo, lock_tree, hf_nlm_lock_svid, offset);
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if (version == 4) {
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offset = dissect_rpc_uint64_tvb(tvb, pinfo, lock_tree, hf_nlm_lock_l_offset, offset);
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offset = dissect_rpc_uint64_tvb(tvb, pinfo, lock_tree, hf_nlm_lock_l_len, offset);
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}
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else {
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offset = dissect_rpc_uint32_tvb(tvb, pinfo, lock_tree, hf_nlm_lock_l_offset, offset);
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offset = dissect_rpc_uint32_tvb(tvb, pinfo, lock_tree, hf_nlm_lock_l_len, offset);
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}
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return offset;
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}
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/* RPC functions */
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#if 0
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static int
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dissect_nlm1_lock_call(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
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{
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#else
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int
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dissect_nlm1_lock_call(const u_char* pd, int offset, frame_data* fd, proto_tree* tree)
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{
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tvbuff_t *tvb = tvb_create_from_top(offset);
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packet_info *pinfo = π
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#endif
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int noffset;
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noffset = dissect_rpc_data_tvb(tvb, pinfo, tree, hf_nlm_cookie, 0);
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noffset = dissect_rpc_bool_tvb(tvb, pinfo, tree, hf_nlm_block, noffset);
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noffset = dissect_rpc_bool_tvb(tvb, pinfo, tree, hf_nlm_exclusive, noffset);
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noffset = dissect_nlm_lock(tvb, pinfo, tree, 1, noffset);
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noffset = dissect_rpc_bool_tvb(tvb, pinfo, tree, hf_nlm_reclaim, noffset);
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noffset = dissect_rpc_uint32_tvb(tvb, pinfo, tree, hf_nlm_state, noffset);
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return tvb_raw_offset(tvb) + noffset;
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}
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#if 0
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static int
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dissect_nlm1_unlock_call(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
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{
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#else
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int
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dissect_nlm1_unlock_call(const u_char* pd, int offset, frame_data* fd, proto_tree* tree)
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{
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tvbuff_t *tvb = tvb_create_from_top(offset);
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packet_info *pinfo = π
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#endif
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int noffset;
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noffset = dissect_rpc_data_tvb(tvb, pinfo, tree, hf_nlm_cookie, 0);
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noffset = dissect_nlm_lock(tvb, pinfo, tree, 1, noffset);
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return tvb_raw_offset(tvb) + noffset;
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}
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#if 0
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static int
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dissect_nlm1_gen_reply(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
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{
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#else
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int
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dissect_nlm1_gen_reply(const u_char* pd, int offset, frame_data* fd, proto_tree* tree)
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{
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tvbuff_t *tvb = tvb_create_from_top(offset);
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packet_info *pinfo = π
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#endif
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int noffset;
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noffset = dissect_rpc_data_tvb(tvb, pinfo, tree, hf_nlm_cookie, 0);
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noffset = dissect_rpc_uint32_tvb(tvb, pinfo, tree, hf_nlm_state, noffset);
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return tvb_raw_offset(tvb) + noffset;
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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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/* NLM protocol version 1 */
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const vsff nlm1_proc[] = {
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{ NLM_NULL, "NULL", /* OK */
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NULL, NULL },
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{ NLM_TEST, "TEST",
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NULL, NULL },
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{ NLM_LOCK, "LOCK", /* OK */
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dissect_nlm1_lock_call, dissect_nlm1_gen_reply },
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{ NLM_CANCEL, "CANCEL",
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NULL, dissect_nlm1_gen_reply },
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{ NLM_UNLOCK, "UNLOCK", /* OK */
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dissect_nlm1_unlock_call, dissect_nlm1_gen_reply },
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{ NLM_GRANTED, "GRANTED",
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NULL, NULL },
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{ NLM_TEST_MSG, "TEST_MSG",
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NULL, NULL },
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{ NLM_LOCK_MSG, "LOCK_MSG", /* OK */
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dissect_nlm1_lock_call, NULL },
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{ NLM_CANCEL_MSG, "CANCEL_MSG",
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NULL, NULL },
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{ NLM_UNLOCK_MSG, "UNLOCK_MSG", /* OK */
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dissect_nlm1_unlock_call, NULL },
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{ NLM_GRANTED_MSG, "GRANTED_MSG",
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NULL, dissect_nlm1_gen_reply },
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{ NLM_TEST_RES, "TEST_RES",
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NULL, NULL },
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{ NLM_LOCK_RES, "LOCK_RES", /* OK */
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dissect_nlm1_gen_reply, NULL },
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{ NLM_CANCEL_RES, "CANCEL_RES", /* OK */
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dissect_nlm1_gen_reply, NULL },
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{ NLM_UNLOCK_RES, "UNLOCK_RES", /* OK */
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dissect_nlm1_gen_reply, NULL },
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{ NLM_GRANTED_RES, "GRANTED_RES", /* OK */
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dissect_nlm1_gen_reply, NULL },
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{ 0, NULL, NULL, NULL }
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};
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/* end of NLM protocol version 1 */
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/* NLM protocol version 2 */
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const vsff nlm2_proc[] = {
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{ NLM_NULL, "NULL", NULL, NULL },
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{ NLM_TEST, "TEST", NULL, NULL },
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{ NLM_LOCK, "LOCK", NULL, NULL },
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{ NLM_CANCEL, "CANCEL", NULL, NULL },
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{ NLM_UNLOCK, "UNLOCK", NULL, NULL },
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{ NLM_GRANTED, "GRANTED", NULL, NULL },
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{ NLM_TEST_MSG, "TEST_MSG", NULL, NULL },
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{ NLM_LOCK_MSG, "LOCK_MSG", NULL, NULL },
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{ NLM_CANCEL_MSG, "CANCEL_MSG", NULL, NULL },
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{ NLM_UNLOCK_MSG, "UNLOCK_MSG", NULL, NULL },
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{ NLM_GRANTED_MSG, "GRANTED_MSG", NULL, NULL },
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{ NLM_TEST_RES, "TEST_RES", NULL, NULL },
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{ NLM_LOCK_RES, "LOCK_RES", NULL, NULL },
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{ NLM_CANCEL_RES, "CANCEL_RES", NULL, NULL },
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{ NLM_UNLOCK_RES, "UNLOCK_RES", NULL, NULL },
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{ NLM_GRANTED_RES, "GRANTED_RES", NULL, NULL },
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{ 0, NULL, NULL, NULL }
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};
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/* end of NLM protocol version 2 */
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/* NLM protocol version 3 */
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const vsff nlm3_proc[] = {
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{ NLM_NULL, "NULL", NULL, NULL },
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{ NLM_TEST, "TEST", NULL, NULL },
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{ NLM_LOCK, "LOCK", NULL, NULL },
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{ NLM_CANCEL, "CANCEL", NULL, NULL },
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{ NLM_UNLOCK, "UNLOCK", NULL, NULL },
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{ NLM_GRANTED, "GRANTED", NULL, NULL },
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{ NLM_TEST_MSG, "TEST_MSG", NULL, NULL },
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{ NLM_LOCK_MSG, "LOCK_MSG", NULL, NULL },
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{ NLM_CANCEL_MSG, "CANCEL_MSG", NULL, NULL },
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{ NLM_UNLOCK_MSG, "UNLOCK_MSG", NULL, NULL },
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{ NLM_GRANTED_MSG, "GRANTED_MSG", NULL, NULL },
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{ NLM_TEST_RES, "TEST_RES", NULL, NULL },
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{ NLM_LOCK_RES, "LOCK_RES", NULL, NULL },
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{ NLM_CANCEL_RES, "CANCEL_RES", NULL, NULL },
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{ NLM_UNLOCK_RES, "UNLOCK_RES", NULL, NULL },
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{ NLM_GRANTED_RES, "GRANTED_RES", NULL, NULL },
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{ NLM_SHARE, "SHARE", NULL, NULL },
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{ NLM_UNSHARE, "UNSHARE", NULL, NULL },
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{ NLM_NM_LOCK, "NM_LOCK", NULL, NULL },
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{ NLM_FREE_ALL, "FREE_ALL", NULL, NULL },
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{ 0, NULL, NULL, NULL }
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};
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/* end of NLM protocol version 3 */
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#if 0
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static int
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dissect_nlm4_test_call(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
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{
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#else
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int
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dissect_nlm4_test_call(const u_char* pd, int offset, frame_data* fd, proto_tree* tree)
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{
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tvbuff_t *tvb = tvb_create_from_top(offset);
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packet_info *pinfo = π
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#endif
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int noffset;
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noffset = dissect_rpc_data_tvb(tvb, pinfo, tree, hf_nlm_cookie, 0);
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dissect_rpc_bool_tvb(tvb, pinfo, tree, hf_nlm_exclusive, noffset);
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noffset += 4;
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noffset = dissect_nlm_lock(tvb, pinfo, tree, 4, noffset);
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return tvb_raw_offset(tvb) + noffset;
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}
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/* NLM protocol version 4 */
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const vsff nlm4_proc[] = {
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{ NLM_NULL, "NULL", NULL, NULL },
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{ NLM_TEST, "TEST", dissect_nlm4_test_call, NULL },
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{ NLM_LOCK, "LOCK", NULL, NULL },
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{ NLM_CANCEL, "CANCEL", NULL, NULL },
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{ NLM_UNLOCK, "UNLOCK", NULL, NULL },
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{ NLM_GRANTED, "GRANTED", NULL, NULL },
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{ NLM_TEST_MSG, "TEST_MSG", NULL, NULL },
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{ NLM_LOCK_MSG, "LOCK_MSG", NULL, NULL },
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{ NLM_CANCEL_MSG, "CANCEL_MSG", NULL, NULL },
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{ NLM_UNLOCK_MSG, "UNLOCK_MSG", NULL, NULL },
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{ NLM_GRANTED_MSG, "GRANTED_MSG", NULL, NULL },
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{ NLM_TEST_RES, "TEST_RES", NULL, NULL },
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{ NLM_LOCK_RES, "LOCK_RES", NULL, NULL },
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{ NLM_CANCEL_RES, "CANCEL_RES", NULL, NULL },
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{ NLM_UNLOCK_RES, "UNLOCK_RES", NULL, NULL },
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{ NLM_GRANTED_RES, "GRANTED_RES", NULL, NULL },
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{ NLM_SHARE, "SHARE", NULL, NULL },
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{ NLM_UNSHARE, "UNSHARE", NULL, NULL },
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{ NLM_NM_LOCK, "NM_LOCK", NULL, NULL },
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{ NLM_FREE_ALL, "FREE_ALL", NULL, NULL },
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{ 0, NULL, NULL, NULL }
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};
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/* end of NLM protocol version 4 */
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static struct true_false_string yesno = { "Yes", "No" };
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void
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proto_register_nlm(void)
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{
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static hf_register_info hf[] = {
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{ &hf_nlm_cookie, {
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"cookie", "nlm.cookie", FT_STRING, BASE_DEC,
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NULL, 0, "cookie" }},
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{ &hf_nlm_block, {
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"block", "nlm.block", FT_BOOLEAN, BASE_NONE,
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&yesno, 0, "block" }},
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{ &hf_nlm_exclusive, {
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"exclusive", "nlm.exclusive", FT_BOOLEAN, BASE_NONE,
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&yesno, 0, "exclusive" }},
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{ &hf_nlm_lock, {
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"lock", "nlm.lock", FT_NONE, 0,
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NULL, 0, "lock" }},
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{ &hf_nlm_lock_caller_name, {
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"caller_name", "nlm.lock.caller_name", FT_STRING, BASE_NONE,
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NULL, 0, "caller_name" }},
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{ &hf_nlm_lock_owner, {
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"owner", "nlm.lock.owner", FT_STRING, BASE_DEC,
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NULL, 0, "owner" }},
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{ &hf_nlm_lock_svid, {
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"svid", "nlm.lock.svid", FT_UINT32, BASE_DEC,
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NULL, 0, "svid" }},
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{ &hf_nlm_lock_l_offset, {
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"l_offset", "nlm.lock.l_offset", FT_UINT32, BASE_DEC,
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NULL, 0, "l_offset" }},
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{ &hf_nlm_lock_l_len, {
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"l_len", "nlm.lock.l_len", FT_UINT32, BASE_DEC,
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NULL, 0, "l_len" }},
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{ &hf_nlm_reclaim, {
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"reclaim", "nlm.reclaim", FT_BOOLEAN, BASE_NONE,
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&yesno, 0, "reclaim" }},
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{ &hf_nlm_state, {
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"state", "nlm.state", FT_UINT32, BASE_DEC,
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VALS(names_nlm_state), 0, "state" }},
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};
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static gint *ett[] = {
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&ett_nlm,
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&ett_nlm_lock,
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};
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proto_nlm = proto_register_protocol("Network Lock Manager Protocol", "nlm");
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proto_register_field_array(proto_nlm, hf, array_length(hf));
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proto_register_subtree_array(ett, array_length(ett));
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}
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void
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proto_reg_handoff_nlm(void)
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{
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/* Register the protocol as RPC */
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rpc_init_prog(proto_nlm, NLM_PROGRAM, ett_nlm);
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/* Register the procedure tables */
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rpc_init_proc_table(NLM_PROGRAM, 1, nlm1_proc);
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rpc_init_proc_table(NLM_PROGRAM, 2, nlm2_proc);
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rpc_init_proc_table(NLM_PROGRAM, 3, nlm3_proc);
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rpc_init_proc_table(NLM_PROGRAM, 4, nlm4_proc);
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}
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