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