wireshark/epan/dissectors/packet-nlm.c

1205 lines
35 KiB
C

/* packet-nlm.c
* Routines for nlm dissection
*
* Wireshark - Network traffic analyzer
* By Gerald Combs <gerald@wireshark.org>
* Copyright 1998 Gerald Combs
*
* Copied from packet-mount.c
*
* 2001-JAN Ronnie Sahlberg <See AUTHORS for email>
* Updates to version 1 of the protocol.
* Added version 3 of the protocol.
* Added version 4 of the protocol.
*
*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "config.h"
#include "packet-nfs.h"
#include "packet-nlm.h"
#include <epan/prefs.h>
void proto_register_nlm(void);
void proto_reg_handoff_nlm(void);
/*
* 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).
*
* They can also be found if you go to
*
* http://www.opengroup.org/publications/catalog/c702.htm
*
* and follow the links to the HTML version of the document.
*/
static int proto_nlm = -1;
static int hf_nlm_procedure_v1 = -1;
static int hf_nlm_procedure_v2 = -1;
static int hf_nlm_procedure_v3 = -1;
static int hf_nlm_procedure_v4 = -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_offset64 = -1;
static int hf_nlm_lock_l_len = -1;
static int hf_nlm_lock_l_len64 = -1;
static int hf_nlm_reclaim = -1;
static int hf_nlm_stat = -1;
static int hf_nlm_state = -1;
static int hf_nlm_test_stat = -1;
static int hf_nlm_test_stat_stat = -1;
static int hf_nlm_holder = -1;
static int hf_nlm_share = -1;
static int hf_nlm_share_mode = -1;
static int hf_nlm_share_access = -1;
static int hf_nlm_share_name = -1;
static int hf_nlm_sequence = -1;
static int hf_nlm_request_in = -1;
static int hf_nlm_reply_in = -1;
static int hf_nlm_time = -1;
static gint ett_nlm = -1;
static gint ett_nlm_lock = -1;
/*
* stuff to match MSG and RES packets for async NLM
*/
static gboolean nlm_match_msgres = FALSE;
static wmem_map_t *nlm_msg_res_unmatched = NULL;
static wmem_map_t *nlm_msg_res_matched = NULL;
/* XXX when matching the packets we should really check the conversation (only address
NOT ports) and command type as well. I am lazy and thinks the cookie itself is
good enough for now
*/
typedef struct _nlm_msg_res_unmatched_data {
int req_frame;
nstime_t ns;
int cookie_len;
const guint8 *cookie;
} nlm_msg_res_unmatched_data;
typedef struct _nlm_msg_res_matched_data {
int req_frame;
int rep_frame;
nstime_t ns;
} nlm_msg_res_matched_data;
static guint
nlm_msg_res_unmatched_hash(gconstpointer k)
{
const nlm_msg_res_unmatched_data *umd = (const nlm_msg_res_unmatched_data *)k;
guint8 hash=0;
int i;
for(i=0;i<umd->cookie_len;i++){
hash^=umd->cookie[i];
}
return hash;
}
static guint
nlm_msg_res_matched_hash(gconstpointer k)
{
guint hash = GPOINTER_TO_UINT(k);
return hash;
}
static gint
nlm_msg_res_unmatched_equal(gconstpointer k1, gconstpointer k2)
{
const nlm_msg_res_unmatched_data *umd1 = (const nlm_msg_res_unmatched_data *)k1;
const nlm_msg_res_unmatched_data *umd2 = (const nlm_msg_res_unmatched_data *)k2;
if(umd1->cookie_len!=umd2->cookie_len){
return 0;
}
return( memcmp(umd1->cookie, umd2->cookie, umd1->cookie_len) == 0);
}
static gint
nlm_msg_res_matched_equal(gconstpointer k1, gconstpointer k2)
{
guint mk1 = GPOINTER_TO_UINT(k1);
guint mk2 = GPOINTER_TO_UINT(k2);
return( mk1==mk2 );
}
static void
nlm_print_msgres_reply(packet_info *pinfo, proto_tree *tree, tvbuff_t *tvb)
{
nlm_msg_res_matched_data *md;
md=(nlm_msg_res_matched_data *)wmem_map_lookup(nlm_msg_res_matched, GINT_TO_POINTER(pinfo->num));
if(md){
nstime_t ns;
proto_tree_add_uint(tree, hf_nlm_request_in, tvb, 0, 0, md->req_frame);
nstime_delta(&ns, &pinfo->abs_ts, &md->ns);
proto_tree_add_time(tree, hf_nlm_time, tvb, 0, 0, &ns);
}
}
static void
nlm_print_msgres_request(packet_info *pinfo, proto_tree *tree, tvbuff_t *tvb)
{
nlm_msg_res_matched_data *md;
md=(nlm_msg_res_matched_data *)wmem_map_lookup(nlm_msg_res_matched, GINT_TO_POINTER(pinfo->num));
if(md){
proto_tree_add_uint(tree, hf_nlm_reply_in, tvb, 0, 0, md->rep_frame);
}
}
static void
nlm_match_fhandle_reply(packet_info *pinfo, proto_tree *tree)
{
nlm_msg_res_matched_data *md;
md=(nlm_msg_res_matched_data *)wmem_map_lookup(nlm_msg_res_matched, GINT_TO_POINTER(pinfo->num));
if(md && md->rep_frame){
dissect_fhandle_hidden(pinfo,
tree, md->req_frame);
}
}
static void
nlm_match_fhandle_request(packet_info *pinfo, proto_tree *tree)
{
nlm_msg_res_matched_data *md;
md=(nlm_msg_res_matched_data *)wmem_map_lookup(nlm_msg_res_matched, GINT_TO_POINTER(pinfo->num));
if(md && md->rep_frame){
dissect_fhandle_hidden(pinfo,
tree, md->rep_frame);
}
}
static void
nlm_register_unmatched_res(packet_info *pinfo, tvbuff_t *tvb, int offset)
{
nlm_msg_res_unmatched_data umd;
nlm_msg_res_unmatched_data *old_umd;
umd.cookie_len=tvb_get_ntohl(tvb, offset);
umd.cookie=tvb_get_ptr(tvb, offset+4, -1);
/* have we seen this cookie before? */
old_umd=(nlm_msg_res_unmatched_data *)wmem_map_lookup(nlm_msg_res_unmatched, (gconstpointer)&umd);
if(old_umd){
nlm_msg_res_matched_data *md_req, *md_rep;
md_req = wmem_new(wmem_file_scope(), nlm_msg_res_matched_data);
md_req->req_frame = old_umd->req_frame;
md_req->rep_frame = pinfo->num;
md_req->ns = old_umd->ns;
md_rep = (nlm_msg_res_matched_data *)wmem_memdup(wmem_file_scope(), md_req, sizeof(nlm_msg_res_matched_data));
wmem_map_insert(nlm_msg_res_matched, GINT_TO_POINTER(md_req->req_frame), md_req);
wmem_map_insert(nlm_msg_res_matched, GINT_TO_POINTER(md_rep->rep_frame), md_rep);
wmem_map_remove(nlm_msg_res_unmatched, old_umd);
}
}
static void
nlm_register_unmatched_msg(packet_info *pinfo, tvbuff_t *tvb, int offset)
{
nlm_msg_res_unmatched_data *umd;
nlm_msg_res_unmatched_data *old_umd;
/* allocate and build the unmatched structure for this request */
umd = wmem_new(wmem_file_scope(), nlm_msg_res_unmatched_data);
umd->req_frame = pinfo->num;
umd->ns = pinfo->abs_ts;
umd->cookie_len = tvb_get_ntohl(tvb, offset);
umd->cookie = (const guint8 *)tvb_memdup(wmem_file_scope(), tvb, offset+4, umd->cookie_len);
/* remove any old duplicates */
old_umd=(nlm_msg_res_unmatched_data *)wmem_map_lookup(nlm_msg_res_unmatched, umd);
if(old_umd){
wmem_map_remove(nlm_msg_res_unmatched, (gconstpointer)old_umd);
}
/* add new one */
wmem_map_insert(nlm_msg_res_unmatched, umd, umd);
}
static const value_string names_nlm_stats[] =
{
/* 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 }
};
static const value_string names_fsh_mode[] =
{
#define FSM_DN 0
{ FSM_DN, "deny none" },
#define FSM_DR 1
{ FSM_DR, "deny read" },
#define FSM_DW 2
{ FSM_DW, "deny write" },
#define FSM_DRW 3
{ FSM_DRW, "deny read/write" },
{ 0, NULL }
};
static const value_string names_fsh_access[] =
{
#define FSA_NONE 0
{ FSA_NONE, "no access" },
#define FSA_R 1
{ FSA_R, "read-only" },
#define FSA_W 2
{ FSA_W, "write-only" },
#define FSA_RW 3
{ FSA_RW, "read/write" },
{ 0, NULL }
};
/* **************************** */
/* generic dissecting functions */
/* **************************** */
static int
dissect_lock(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int version, int offset, rpc_call_info_value* civ)
{
proto_item* lock_item = NULL;
proto_tree* lock_tree = NULL;
guint32 fh_hash, svid, start_offset=0, end_offset=0;
if (tree) {
lock_item = proto_tree_add_item(tree, hf_nlm_lock, tvb,
offset, -1, ENC_NA);
if (lock_item)
lock_tree = proto_item_add_subtree(lock_item, ett_nlm_lock);
}
offset = dissect_rpc_string(tvb,lock_tree,
hf_nlm_lock_caller_name, offset, NULL);
offset = dissect_nfs3_fh(tvb, offset, pinfo, lock_tree, "fh", &fh_hash, civ);
col_append_fstr(pinfo->cinfo, COL_INFO, " FH:0x%08x", fh_hash);
offset = dissect_rpc_data(tvb, lock_tree, hf_nlm_lock_owner, offset);
svid = tvb_get_ntohl(tvb, offset);
offset = dissect_rpc_uint32(tvb, lock_tree, hf_nlm_lock_svid, offset);
col_append_fstr(pinfo->cinfo, COL_INFO, " svid:%d", svid);
if (version == 4) {
start_offset = tvb_get_ntohl(tvb, offset);
offset = dissect_rpc_uint64(tvb, lock_tree, hf_nlm_lock_l_offset64, offset);
end_offset = tvb_get_ntohl(tvb, offset);
offset = dissect_rpc_uint64(tvb, lock_tree, hf_nlm_lock_l_len64, offset);
}
else {
start_offset = tvb_get_ntohl(tvb, offset);
offset = dissect_rpc_uint32(tvb, lock_tree, hf_nlm_lock_l_offset, offset);
end_offset = tvb_get_ntohl(tvb, offset);
offset = dissect_rpc_uint32(tvb, lock_tree, hf_nlm_lock_l_len, offset);
}
col_append_fstr(pinfo->cinfo, COL_INFO, " pos:%d-%d", start_offset, end_offset);
return offset;
}
static int
dissect_nlm_test(tvbuff_t *tvb, int offset, packet_info *pinfo,
proto_tree *tree, int version, rpc_call_info_value* rpc_call)
{
if(nlm_match_msgres){
if(rpc_call->proc==6){ /* NLM_TEST_MSG */
if( (!pinfo->fd->flags.visited) ){
nlm_register_unmatched_msg(pinfo, tvb, offset);
} else {
nlm_print_msgres_request(pinfo, tree, tvb);
}
/* for the fhandle matching that finds both request and
response packet */
if(nfs_fhandle_reqrep_matching){
nlm_match_fhandle_request(pinfo, tree);
}
}
}
offset = dissect_rpc_data(tvb, tree, hf_nlm_cookie, offset);
dissect_rpc_bool(tvb, tree, hf_nlm_exclusive, offset);
offset += 4;
offset = dissect_lock(tvb, pinfo, tree, version, offset, rpc_call);
return offset;
}
static int
dissect_nlm_lock(tvbuff_t *tvb, int offset, packet_info *pinfo,
proto_tree *tree,int version, rpc_call_info_value* rpc_call)
{
if(nlm_match_msgres){
if(rpc_call->proc==7){ /* NLM_LOCK_MSG */
if( (!pinfo->fd->flags.visited) ){
nlm_register_unmatched_msg(pinfo, tvb, offset);
} else {
nlm_print_msgres_request(pinfo, tree, tvb);
}
/* for the fhandle matching that finds both request and
response packet */
if(nfs_fhandle_reqrep_matching){
nlm_match_fhandle_request(pinfo, tree);
}
}
}
offset = dissect_rpc_data(tvb, tree, hf_nlm_cookie, offset);
offset = dissect_rpc_bool(tvb, tree, hf_nlm_block, offset);
offset = dissect_rpc_bool(tvb, tree, hf_nlm_exclusive, offset);
offset = dissect_lock(tvb, pinfo, tree, version, offset, rpc_call);
offset = dissect_rpc_bool(tvb, tree, hf_nlm_reclaim, offset);
offset = dissect_rpc_uint32(tvb, tree, hf_nlm_state, offset);
return offset;
}
static int
dissect_nlm_cancel(tvbuff_t *tvb, int offset, packet_info *pinfo,
proto_tree *tree,int version, rpc_call_info_value* rpc_call)
{
if(nlm_match_msgres){
if(rpc_call->proc==8){ /* NLM_CANCEL_MSG */
if( (!pinfo->fd->flags.visited) ){
nlm_register_unmatched_msg(pinfo, tvb, offset);
} else {
nlm_print_msgres_request(pinfo, tree, tvb);
}
/* for the fhandle matching that finds both request and
response packet */
if(nfs_fhandle_reqrep_matching){
nlm_match_fhandle_request(pinfo, tree);
}
}
}
offset = dissect_rpc_data(tvb, tree, hf_nlm_cookie, offset);
offset = dissect_rpc_bool(tvb, tree, hf_nlm_block, offset);
offset = dissect_rpc_bool(tvb, tree, hf_nlm_exclusive, offset);
offset = dissect_lock(tvb, pinfo, tree, version, offset, rpc_call);
return offset;
}
static int
dissect_nlm_unlock(tvbuff_t *tvb, int offset, packet_info *pinfo,
proto_tree *tree,int version, rpc_call_info_value* rpc_call)
{
if(nlm_match_msgres){
if(rpc_call->proc==9){ /* NLM_UNLOCK_MSG */
if( (!pinfo->fd->flags.visited) ){
nlm_register_unmatched_msg(pinfo, tvb, offset);
} else {
nlm_print_msgres_request(pinfo, tree, tvb);
}
/* for the fhandle matching that finds both request and
response packet */
if(nfs_fhandle_reqrep_matching){
nlm_match_fhandle_request(pinfo, tree);
}
}
}
offset = dissect_rpc_data(tvb, tree, hf_nlm_cookie, offset);
offset = dissect_lock(tvb, pinfo, tree, version, offset, rpc_call);
return offset;
}
static int
dissect_nlm_granted(tvbuff_t *tvb, int offset, packet_info *pinfo,
proto_tree *tree,int version, rpc_call_info_value* rpc_call)
{
if(nlm_match_msgres){
if(rpc_call->proc==10){ /* NLM_GRANTED_MSG */
if( (!pinfo->fd->flags.visited) ){
nlm_register_unmatched_msg(pinfo, tvb, offset);
} else {
nlm_print_msgres_request(pinfo, tree, tvb);
}
/* for the fhandle matching that finds both request and
response packet */
if(nfs_fhandle_reqrep_matching){
nlm_match_fhandle_request(pinfo, tree);
}
}
}
offset = dissect_rpc_data(tvb, tree, hf_nlm_cookie, offset);
offset = dissect_rpc_bool(tvb, tree, hf_nlm_exclusive, offset);
offset = dissect_lock(tvb, pinfo, tree, version, offset, rpc_call);
return offset;
}
static int
dissect_nlm_test_res(tvbuff_t *tvb, int offset, packet_info *pinfo _U_,
proto_tree *tree, int version, rpc_call_info_value *rpc_call)
{
proto_item* lock_item = NULL;
proto_tree* lock_tree = NULL;
if(nlm_match_msgres){
if(rpc_call->proc==11){ /* NLM_TEST_RES */
if( (!pinfo->fd->flags.visited) ){
nlm_register_unmatched_res(pinfo, tvb, offset);
} else {
nlm_print_msgres_reply(pinfo, tree, tvb);
}
/* for the fhandle matching that finds both request and
response packet */
if(nfs_fhandle_reqrep_matching){
nlm_match_fhandle_reply(pinfo, tree);
}
}
}
offset = dissect_rpc_data(tvb, tree, hf_nlm_cookie, offset);
if (tree) {
lock_item = proto_tree_add_item(tree, hf_nlm_test_stat, tvb,
offset, -1, ENC_NA);
lock_tree = proto_item_add_subtree(lock_item, ett_nlm_lock);
}
offset = dissect_rpc_uint32(tvb, lock_tree, hf_nlm_test_stat_stat,
offset);
/* last structure is optional, only supplied for stat==1 (LOCKED) */
if(tvb_reported_length_remaining(tvb, offset) == 0){
return offset;
}
if (tree) {
lock_item = proto_tree_add_item(lock_tree, hf_nlm_holder, tvb,
offset, -1, ENC_NA);
if (lock_item)
lock_tree = proto_item_add_subtree(lock_item,
ett_nlm_lock);
}
offset = dissect_rpc_bool(tvb, lock_tree, hf_nlm_exclusive,
offset);
offset = dissect_rpc_uint32(tvb, lock_tree, hf_nlm_lock_svid,
offset);
offset = dissect_rpc_data(tvb, lock_tree, hf_nlm_lock_owner,
offset);
if (version == 4) {
offset = dissect_rpc_uint64(tvb, lock_tree,
hf_nlm_lock_l_offset64, offset);
offset = dissect_rpc_uint64(tvb, lock_tree,
hf_nlm_lock_l_len64, offset);
}
else {
offset = dissect_rpc_uint32(tvb, lock_tree,
hf_nlm_lock_l_offset, offset);
offset = dissect_rpc_uint32(tvb, lock_tree,
hf_nlm_lock_l_len, offset);
}
return offset;
}
static int
dissect_nlm_share(tvbuff_t *tvb, int offset, packet_info *pinfo,
proto_tree *tree,int version _U_, rpc_call_info_value* civ)
{
proto_item* lock_item = NULL;
proto_tree* lock_tree = NULL;
guint32 fh_hash;
offset = dissect_rpc_data(tvb, tree, hf_nlm_cookie, offset);
if (tree) {
lock_item = proto_tree_add_item(tree, hf_nlm_share, tvb,
offset, -1, ENC_NA);
if (lock_item)
lock_tree = proto_item_add_subtree(lock_item,
ett_nlm_lock);
}
offset = dissect_rpc_string(tvb,lock_tree,
hf_nlm_lock_caller_name, offset, NULL);
offset = dissect_nfs3_fh(tvb, offset, pinfo, lock_tree, "fh", &fh_hash, civ);
col_append_fstr(pinfo->cinfo, COL_INFO, " FH:0x%08x", fh_hash);
offset = dissect_rpc_data(tvb, lock_tree, hf_nlm_lock_owner, offset);
offset = dissect_rpc_uint32(tvb, lock_tree, hf_nlm_share_mode, offset);
offset = dissect_rpc_uint32(tvb, lock_tree, hf_nlm_share_access, offset);
offset = dissect_rpc_bool(tvb, tree, hf_nlm_reclaim, offset);
return offset;
}
static int
dissect_nlm_shareres(tvbuff_t *tvb, int offset, packet_info *pinfo _U_,
proto_tree *tree, int version _U_)
{
guint32 nlm_stat;
offset = dissect_rpc_data(tvb, tree, hf_nlm_cookie, offset);
nlm_stat = tvb_get_ntohl(tvb, offset);
if (nlm_stat) {
col_append_fstr(pinfo->cinfo, COL_INFO, " %s",
val_to_str(nlm_stat, names_nlm_stats, "Unknown Status (%u)"));
}
offset = dissect_rpc_uint32(tvb, tree, hf_nlm_stat, offset);
offset = dissect_rpc_uint32(tvb, tree, hf_nlm_sequence, offset);
return offset;
}
static int
dissect_nlm_freeall(tvbuff_t *tvb, int offset, packet_info *pinfo _U_,
proto_tree *tree,int version _U_)
{
offset = dissect_rpc_string(tvb,tree,
hf_nlm_share_name, offset, NULL);
offset = dissect_rpc_uint32(tvb, tree, hf_nlm_state, offset);
return offset;
}
/* RPC functions */
/* This function is identical for all NLM protocol versions (1-4)*/
static int
dissect_nlm_gen_reply(tvbuff_t *tvb, packet_info *pinfo _U_,
proto_tree *tree, void* data)
{
guint32 nlm_stat;
int offset = 0;
if(nlm_match_msgres){
rpc_call_info_value *rpc_call=(rpc_call_info_value *)data;
if((rpc_call->proc==12) /* NLM_LOCK_RES */
|| (rpc_call->proc==13) /* NLM_CANCEL_RES */
|| (rpc_call->proc==14) /* NLM_UNLOCK_RES */
|| (rpc_call->proc==15) ){ /* NLM_GRENTED_RES */
if( (!pinfo->fd->flags.visited) ){
nlm_register_unmatched_res(pinfo, tvb, offset);
} else {
nlm_print_msgres_reply(pinfo, tree, tvb);
}
/* for the fhandle matching that finds both request and
response packet */
if(nfs_fhandle_reqrep_matching){
nlm_match_fhandle_reply(pinfo, tree);
}
}
}
offset = dissect_rpc_data(tvb, tree, hf_nlm_cookie, offset);
nlm_stat = tvb_get_ntohl(tvb, offset);
if (nlm_stat) {
col_append_fstr(pinfo->cinfo, COL_INFO, " %s",
val_to_str(nlm_stat, names_nlm_stats, "Unknown Status (%u)"));
}
offset = dissect_rpc_uint32(tvb, tree, hf_nlm_stat, offset);
return offset;
}
static int
dissect_nlm1_test(tvbuff_t *tvb, packet_info *pinfo,
proto_tree *tree, void* data)
{
return dissect_nlm_test(tvb,0,pinfo,tree,1,(rpc_call_info_value*)data);
}
static int
dissect_nlm4_test(tvbuff_t *tvb, packet_info *pinfo,
proto_tree *tree, void* data)
{
return dissect_nlm_test(tvb,0,pinfo,tree,4,(rpc_call_info_value*)data);
}
static int
dissect_nlm1_lock(tvbuff_t *tvb, packet_info *pinfo,
proto_tree *tree, void* data)
{
return dissect_nlm_lock(tvb,0,pinfo,tree,1,(rpc_call_info_value*)data);
}
static int
dissect_nlm4_lock(tvbuff_t *tvb, packet_info *pinfo,
proto_tree *tree, void* data)
{
return dissect_nlm_lock(tvb,0,pinfo,tree,4,(rpc_call_info_value*)data);
}
static int
dissect_nlm1_cancel(tvbuff_t *tvb, packet_info *pinfo,
proto_tree *tree, void* data)
{
return dissect_nlm_cancel(tvb,0,pinfo,tree,1,(rpc_call_info_value*)data);
}
static int
dissect_nlm4_cancel(tvbuff_t *tvb, packet_info *pinfo,
proto_tree *tree, void* data)
{
return dissect_nlm_cancel(tvb,0,pinfo,tree,4,(rpc_call_info_value*)data);
}
static int
dissect_nlm1_unlock(tvbuff_t *tvb, packet_info *pinfo,
proto_tree *tree, void* data)
{
return dissect_nlm_unlock(tvb,0,pinfo,tree,1,(rpc_call_info_value*)data);
}
static int
dissect_nlm4_unlock(tvbuff_t *tvb, packet_info *pinfo,
proto_tree *tree, void* data)
{
return dissect_nlm_unlock(tvb,0,pinfo,tree,4,(rpc_call_info_value*)data);
}
static int
dissect_nlm1_granted(tvbuff_t *tvb, packet_info *pinfo,
proto_tree *tree, void* data)
{
return dissect_nlm_granted(tvb,0,pinfo,tree,1,(rpc_call_info_value*)data);
}
static int
dissect_nlm4_granted(tvbuff_t *tvb, packet_info *pinfo,
proto_tree *tree, void* data)
{
return dissect_nlm_granted(tvb,0,pinfo,tree,4,(rpc_call_info_value*)data);
}
static int
dissect_nlm1_test_res(tvbuff_t *tvb, packet_info *pinfo,
proto_tree *tree, void* data)
{
return dissect_nlm_test_res(tvb,0,pinfo,tree,1,(rpc_call_info_value*)data);
}
static int
dissect_nlm4_test_res(tvbuff_t *tvb, packet_info *pinfo,
proto_tree *tree, void* data)
{
return dissect_nlm_test_res(tvb,0,pinfo,tree,4,(rpc_call_info_value*)data);
}
static int
dissect_nlm3_share(tvbuff_t *tvb, packet_info *pinfo,
proto_tree *tree, void* data _U_)
{
return dissect_nlm_share(tvb,0,pinfo,tree,3,(rpc_call_info_value*)data);
}
static int
dissect_nlm4_share(tvbuff_t *tvb, packet_info *pinfo,
proto_tree *tree, void* data _U_)
{
return dissect_nlm_share(tvb,0,pinfo,tree,4,(rpc_call_info_value*)data);
}
static int
dissect_nlm3_shareres(tvbuff_t *tvb, packet_info *pinfo,
proto_tree *tree, void* data _U_)
{
return dissect_nlm_shareres(tvb,0,pinfo,tree,3);
}
static int
dissect_nlm4_shareres(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_)
{
return dissect_nlm_shareres(tvb,0,pinfo,tree,4);
}
static int
dissect_nlm3_freeall(tvbuff_t *tvb, packet_info *pinfo,
proto_tree *tree, void* data _U_)
{
return dissect_nlm_freeall(tvb,0,pinfo,tree,3);
}
static int
dissect_nlm4_freeall(tvbuff_t *tvb, packet_info *pinfo,
proto_tree *tree, void* data _U_)
{
return dissect_nlm_freeall(tvb,0,pinfo,tree,4);
}
/* proc number, "proc name", dissect_request, dissect_reply */
/* NLM protocol version 1 */
static const vsff nlm1_proc[] = {
{ NLM_NULL, "NULL",
dissect_rpc_void, dissect_rpc_void },
{ NLM_TEST, "TEST",
dissect_nlm1_test, dissect_nlm1_test_res },
{ NLM_LOCK, "LOCK",
dissect_nlm1_lock, dissect_nlm_gen_reply },
{ NLM_CANCEL, "CANCEL",
dissect_nlm1_cancel, dissect_nlm_gen_reply },
{ NLM_UNLOCK, "UNLOCK",
dissect_nlm1_unlock, dissect_nlm_gen_reply },
{ NLM_GRANTED, "GRANTED",
dissect_nlm1_granted, dissect_nlm_gen_reply },
{ NLM_TEST_MSG, "TEST_MSG",
dissect_nlm1_test, dissect_rpc_void },
{ NLM_LOCK_MSG, "LOCK_MSG",
dissect_nlm1_lock, dissect_rpc_void },
{ NLM_CANCEL_MSG, "CANCEL_MSG",
dissect_nlm1_cancel, dissect_rpc_void },
{ NLM_UNLOCK_MSG, "UNLOCK_MSG",
dissect_nlm1_unlock, dissect_rpc_void },
{ NLM_GRANTED_MSG, "GRANTED_MSG",
dissect_nlm1_granted, dissect_rpc_void },
{ NLM_TEST_RES, "TEST_RES",
dissect_nlm1_test_res, dissect_rpc_void },
{ NLM_LOCK_RES, "LOCK_RES",
dissect_nlm_gen_reply, dissect_rpc_void },
{ NLM_CANCEL_RES, "CANCEL_RES",
dissect_nlm_gen_reply, dissect_rpc_void },
{ NLM_UNLOCK_RES, "UNLOCK_RES",
dissect_nlm_gen_reply, dissect_rpc_void },
{ NLM_GRANTED_RES, "GRANTED_RES",
dissect_nlm_gen_reply, dissect_rpc_void },
{ 0, NULL,
NULL, NULL }
};
static const value_string nlm1_proc_vals[] = {
{ NLM_NULL, "NULL" },
{ NLM_TEST, "TEST" },
{ NLM_LOCK, "LOCK" },
{ NLM_CANCEL, "CANCEL" },
{ NLM_UNLOCK, "UNLOCK" },
{ NLM_GRANTED, "GRANTED" },
{ NLM_TEST_MSG, "TEST_MSG" },
{ NLM_LOCK_MSG, "LOCK_MSG" },
{ NLM_CANCEL_MSG, "CANCEL_MSG" },
{ NLM_UNLOCK_MSG, "UNLOCK_MSG" },
{ NLM_GRANTED_MSG, "GRANTED_MSG" },
{ NLM_TEST_RES, "TEST_RES" },
{ NLM_LOCK_RES, "LOCK_RES" },
{ NLM_CANCEL_RES, "CANCEL_RES" },
{ NLM_UNLOCK_RES, "UNLOCK_RES" },
{ NLM_GRANTED_RES, "GRANTED_RES" },
{ 0, NULL }
};
/* end of NLM protocol version 1 */
/* NLM protocol version 2 */
static const vsff nlm2_proc[] = {
{ NLM_NULL, "NULL",
dissect_rpc_void, dissect_rpc_void },
{ NLM_TEST, "TEST",
dissect_nlm1_test, dissect_nlm1_test_res },
{ NLM_LOCK, "LOCK",
dissect_nlm1_lock, dissect_nlm_gen_reply },
{ NLM_CANCEL, "CANCEL",
dissect_nlm1_cancel, dissect_nlm_gen_reply },
{ NLM_UNLOCK, "UNLOCK",
dissect_nlm1_unlock, dissect_nlm_gen_reply },
{ NLM_GRANTED, "GRANTED",
dissect_nlm1_granted, dissect_nlm_gen_reply },
{ NLM_TEST_MSG, "TEST_MSG",
dissect_nlm1_test, dissect_rpc_void },
{ NLM_LOCK_MSG, "LOCK_MSG",
dissect_nlm1_lock, dissect_rpc_void },
{ NLM_CANCEL_MSG, "CANCEL_MSG",
dissect_nlm1_cancel, dissect_rpc_void },
{ NLM_UNLOCK_MSG, "UNLOCK_MSG",
dissect_nlm1_unlock, dissect_rpc_void },
{ NLM_GRANTED_MSG, "GRANTED_MSG",
dissect_nlm1_granted, dissect_rpc_void },
{ NLM_TEST_RES, "TEST_RES",
dissect_nlm1_test_res, dissect_rpc_void },
{ NLM_LOCK_RES, "LOCK_RES",
dissect_nlm_gen_reply, dissect_rpc_void },
{ NLM_CANCEL_RES, "CANCEL_RES",
dissect_nlm_gen_reply, dissect_rpc_void },
{ NLM_UNLOCK_RES, "UNLOCK_RES",
dissect_nlm_gen_reply, dissect_rpc_void },
{ NLM_GRANTED_RES, "GRANTED_RES",
dissect_nlm_gen_reply, dissect_rpc_void },
{ 0, NULL,
NULL, NULL }
};
static const value_string nlm2_proc_vals[] = {
{ NLM_NULL, "NULL" },
{ NLM_TEST, "TEST" },
{ NLM_LOCK, "LOCK" },
{ NLM_CANCEL, "CANCEL" },
{ NLM_UNLOCK, "UNLOCK" },
{ NLM_GRANTED, "GRANTED" },
{ NLM_TEST_MSG, "TEST_MSG" },
{ NLM_LOCK_MSG, "LOCK_MSG" },
{ NLM_CANCEL_MSG, "CANCEL_MSG" },
{ NLM_UNLOCK_MSG, "UNLOCK_MSG" },
{ NLM_GRANTED_MSG, "GRANTED_MSG" },
{ NLM_TEST_RES, "TEST_RES" },
{ NLM_LOCK_RES, "LOCK_RES" },
{ NLM_CANCEL_RES, "CANCEL_RES" },
{ NLM_UNLOCK_RES, "UNLOCK_RES" },
{ NLM_GRANTED_RES, "GRANTED_RES" },
{ 0, NULL }
};
/* end of NLM protocol version 2 */
/* NLM protocol version 3 */
static const vsff nlm3_proc[] = {
{ NLM_NULL, "NULL",
dissect_rpc_void, dissect_rpc_void },
{ NLM_TEST, "TEST",
dissect_nlm1_test, dissect_nlm1_test_res },
{ NLM_LOCK, "LOCK",
dissect_nlm1_lock, dissect_nlm_gen_reply },
{ NLM_CANCEL, "CANCEL",
dissect_nlm1_cancel, dissect_nlm_gen_reply },
{ NLM_UNLOCK, "UNLOCK",
dissect_nlm1_unlock, dissect_nlm_gen_reply },
{ NLM_GRANTED, "GRANTED",
dissect_nlm1_granted, dissect_nlm_gen_reply },
{ NLM_TEST_MSG, "TEST_MSG",
dissect_nlm1_test, dissect_rpc_void },
{ NLM_LOCK_MSG, "LOCK_MSG",
dissect_nlm1_lock, dissect_rpc_void },
{ NLM_CANCEL_MSG, "CANCEL_MSG",
dissect_nlm1_cancel, dissect_rpc_void },
{ NLM_UNLOCK_MSG, "UNLOCK_MSG",
dissect_nlm1_unlock, dissect_rpc_void },
{ NLM_GRANTED_MSG, "GRANTED_MSG",
dissect_nlm1_granted, dissect_rpc_void },
{ NLM_TEST_RES, "TEST_RES",
dissect_nlm1_test_res, dissect_rpc_void },
{ NLM_LOCK_RES, "LOCK_RES",
dissect_nlm_gen_reply, dissect_rpc_void },
{ NLM_CANCEL_RES, "CANCEL_RES",
dissect_nlm_gen_reply, dissect_rpc_void },
{ NLM_UNLOCK_RES, "UNLOCK_RES",
dissect_nlm_gen_reply, dissect_rpc_void },
{ NLM_GRANTED_RES, "GRANTED_RES",
dissect_nlm_gen_reply, dissect_rpc_void },
{ NLM_SHARE, "SHARE",
dissect_nlm3_share, dissect_nlm3_shareres },
{ NLM_UNSHARE, "UNSHARE",
dissect_nlm3_share, dissect_nlm3_shareres },
{ NLM_NM_LOCK, "NM_LOCK",
dissect_nlm1_lock, dissect_nlm_gen_reply },
{ NLM_FREE_ALL, "FREE_ALL",
dissect_nlm3_freeall, dissect_rpc_void },
{ 0, NULL,
NULL, NULL }
};
static const value_string nlm3_proc_vals[] = {
{ NLM_NULL, "NULL" },
{ NLM_TEST, "TEST" },
{ NLM_LOCK, "LOCK" },
{ NLM_CANCEL, "CANCEL" },
{ NLM_UNLOCK, "UNLOCK" },
{ NLM_GRANTED, "GRANTED" },
{ NLM_TEST_MSG, "TEST_MSG" },
{ NLM_LOCK_MSG, "LOCK_MSG" },
{ NLM_CANCEL_MSG, "CANCEL_MSG" },
{ NLM_UNLOCK_MSG, "UNLOCK_MSG" },
{ NLM_GRANTED_MSG, "GRANTED_MSG" },
{ NLM_TEST_RES, "TEST_RES" },
{ NLM_LOCK_RES, "LOCK_RES" },
{ NLM_CANCEL_RES, "CANCEL_RES" },
{ NLM_UNLOCK_RES, "UNLOCK_RES" },
{ NLM_GRANTED_RES, "GRANTED_RES" },
{ NLM_SHARE, "SHARE" },
{ NLM_UNSHARE, "UNSHARE" },
{ NLM_NM_LOCK, "NM_LOCK" },
{ NLM_FREE_ALL, "FREE_ALL" },
{ 0, NULL }
};
/* end of NLM protocol version 3 */
/* NLM protocol version 4 */
static const vsff nlm4_proc[] = {
{ NLM_NULL, "NULL",
dissect_rpc_void, dissect_rpc_void },
{ NLM_TEST, "TEST",
dissect_nlm4_test, dissect_nlm4_test_res },
{ NLM_LOCK, "LOCK",
dissect_nlm4_lock, dissect_nlm_gen_reply },
{ NLM_CANCEL, "CANCEL",
dissect_nlm4_cancel, dissect_nlm_gen_reply },
{ NLM_UNLOCK, "UNLOCK",
dissect_nlm4_unlock, dissect_nlm_gen_reply },
{ NLM_GRANTED, "GRANTED",
dissect_nlm4_granted, dissect_nlm_gen_reply },
{ NLM_TEST_MSG, "TEST_MSG",
dissect_nlm4_test, dissect_rpc_void },
{ NLM_LOCK_MSG, "LOCK_MSG",
dissect_nlm4_lock, dissect_rpc_void },
{ NLM_CANCEL_MSG, "CANCEL_MSG",
dissect_nlm4_cancel, dissect_rpc_void },
{ NLM_UNLOCK_MSG, "UNLOCK_MSG",
dissect_nlm4_unlock, dissect_rpc_void },
{ NLM_GRANTED_MSG, "GRANTED_MSG",
dissect_nlm4_granted, dissect_rpc_void },
{ NLM_TEST_RES, "TEST_RES",
dissect_nlm4_test_res, dissect_rpc_void },
{ NLM_LOCK_RES, "LOCK_RES",
dissect_nlm_gen_reply, dissect_rpc_void },
{ NLM_CANCEL_RES, "CANCEL_RES",
dissect_nlm_gen_reply, dissect_rpc_void },
{ NLM_UNLOCK_RES, "UNLOCK_RES",
dissect_nlm_gen_reply, dissect_rpc_void },
{ NLM_GRANTED_RES, "GRANTED_RES",
dissect_nlm_gen_reply, dissect_rpc_void },
{ NLM_SHARE, "SHARE",
dissect_nlm4_share, dissect_nlm4_shareres },
{ NLM_UNSHARE, "UNSHARE",
dissect_nlm4_share, dissect_nlm4_shareres },
{ NLM_NM_LOCK, "NM_LOCK",
dissect_nlm4_lock, dissect_nlm_gen_reply },
{ NLM_FREE_ALL, "FREE_ALL",
dissect_nlm4_freeall, dissect_rpc_void },
{ 0, NULL,
NULL, NULL }
};
static const value_string nlm4_proc_vals[] = {
{ NLM_NULL, "NULL" },
{ NLM_TEST, "TEST" },
{ NLM_LOCK, "LOCK" },
{ NLM_CANCEL, "CANCEL" },
{ NLM_UNLOCK, "UNLOCK" },
{ NLM_GRANTED, "GRANTED" },
{ NLM_TEST_MSG, "TEST_MSG" },
{ NLM_LOCK_MSG, "LOCK_MSG" },
{ NLM_CANCEL_MSG, "CANCEL_MSG" },
{ NLM_UNLOCK_MSG, "UNLOCK_MSG" },
{ NLM_GRANTED_MSG, "GRANTED_MSG" },
{ NLM_TEST_RES, "TEST_RES" },
{ NLM_LOCK_RES, "LOCK_RES" },
{ NLM_CANCEL_RES, "CANCEL_RES" },
{ NLM_UNLOCK_RES, "UNLOCK_RES" },
{ NLM_GRANTED_RES, "GRANTED_RES" },
{ NLM_SHARE, "SHARE" },
{ NLM_UNSHARE, "UNSHARE" },
{ NLM_NM_LOCK, "NM_LOCK" },
{ NLM_FREE_ALL, "FREE_ALL" },
{ 0, NULL }
};
/* end of NLM protocol version 4 */
static const rpc_prog_vers_info nlm_vers_info[] = {
{ 1, nlm1_proc, &hf_nlm_procedure_v1 },
{ 2, nlm2_proc, &hf_nlm_procedure_v2 },
{ 3, nlm3_proc, &hf_nlm_procedure_v3 },
{ 4, nlm4_proc, &hf_nlm_procedure_v4 },
};
void
proto_register_nlm(void)
{
static hf_register_info hf[] = {
{ &hf_nlm_procedure_v1, {
"V1 Procedure", "nlm.procedure_v1", FT_UINT32, BASE_DEC,
VALS(nlm1_proc_vals), 0, NULL, HFILL }},
{ &hf_nlm_procedure_v2, {
"V2 Procedure", "nlm.procedure_v2", FT_UINT32, BASE_DEC,
VALS(nlm2_proc_vals), 0, NULL, HFILL }},
{ &hf_nlm_procedure_v3, {
"V3 Procedure", "nlm.procedure_v3", FT_UINT32, BASE_DEC,
VALS(nlm3_proc_vals), 0, NULL, HFILL }},
{ &hf_nlm_procedure_v4, {
"V4 Procedure", "nlm.procedure_v4", FT_UINT32, BASE_DEC,
VALS(nlm4_proc_vals), 0, NULL, HFILL }},
{ &hf_nlm_cookie, {
"cookie", "nlm.cookie", FT_BYTES, BASE_NONE,
NULL, 0, NULL, HFILL }},
{ &hf_nlm_block, {
"block", "nlm.block", FT_BOOLEAN, BASE_NONE,
TFS(&tfs_yes_no), 0x0, NULL, HFILL }},
{ &hf_nlm_exclusive, {
"exclusive", "nlm.exclusive", FT_BOOLEAN, BASE_NONE,
TFS(&tfs_yes_no), 0x0, NULL, HFILL }},
{ &hf_nlm_lock, {
"lock", "nlm.lock", FT_NONE, BASE_NONE,
NULL, 0, NULL, HFILL }},
{ &hf_nlm_lock_caller_name, {
"caller_name", "nlm.lock.caller_name", FT_STRING, BASE_NONE,
NULL, 0, NULL, HFILL }},
{ &hf_nlm_lock_owner, {
"owner", "nlm.lock.owner", FT_BYTES, BASE_NONE,
NULL, 0, NULL, HFILL }},
{ &hf_nlm_lock_svid, {
"svid", "nlm.lock.svid", FT_UINT32, BASE_DEC,
NULL, 0, NULL, HFILL }},
{ &hf_nlm_lock_l_offset64, {
"l_offset", "nlm.lock.l_offset64", FT_UINT64, BASE_DEC,
NULL, 0, NULL, HFILL }},
{ &hf_nlm_lock_l_offset, {
"l_offset", "nlm.lock.l_offset", FT_UINT32, BASE_DEC,
NULL, 0, NULL, HFILL }},
{ &hf_nlm_lock_l_len64, {
"l_len", "nlm.lock.l_len64", FT_UINT64, BASE_DEC,
NULL, 0, NULL, HFILL }},
{ &hf_nlm_lock_l_len, {
"l_len", "nlm.lock.l_len", FT_UINT32, BASE_DEC,
NULL, 0, NULL, HFILL }},
{ &hf_nlm_reclaim, {
"reclaim", "nlm.reclaim", FT_BOOLEAN, BASE_NONE,
TFS(&tfs_yes_no), 0x0, NULL, HFILL }},
{ &hf_nlm_state, {
"state", "nlm.state", FT_UINT32, BASE_DEC,
NULL, 0, "STATD state", HFILL }},
{ &hf_nlm_stat, {
"stat", "nlm.stat", FT_UINT32, BASE_DEC,
VALS(names_nlm_stats), 0, NULL, HFILL }},
{ &hf_nlm_test_stat, {
"test_stat", "nlm.test_stat", FT_NONE, BASE_NONE,
NULL, 0, NULL, HFILL }},
{ &hf_nlm_test_stat_stat, {
"stat", "nlm.test_stat.stat", FT_UINT32, BASE_DEC,
VALS(names_nlm_stats), 0, NULL, HFILL }},
{ &hf_nlm_holder, {
"holder", "nlm.holder", FT_NONE, BASE_NONE,
NULL, 0, NULL, HFILL }},
{ &hf_nlm_share, {
"share", "nlm.share", FT_NONE, BASE_NONE,
NULL, 0, NULL, HFILL }},
{ &hf_nlm_share_mode, {
"mode", "nlm.share.mode", FT_UINT32, BASE_DEC,
VALS(names_fsh_mode), 0, NULL, HFILL }},
{ &hf_nlm_share_access, {
"access", "nlm.share.access", FT_UINT32, BASE_DEC,
VALS(names_fsh_access), 0, NULL, HFILL }},
{ &hf_nlm_share_name, {
"name", "nlm.share.name", FT_STRING, BASE_NONE,
NULL, 0, NULL, HFILL }},
{ &hf_nlm_sequence, {
"sequence", "nlm.sequence", FT_INT32, BASE_DEC,
NULL, 0, NULL, HFILL }},
{ &hf_nlm_request_in, {
"Request MSG in", "nlm.msg_in", FT_UINT32, BASE_DEC,
NULL, 0, "The RES packet is a response to the MSG in this packet", HFILL }},
{ &hf_nlm_reply_in, {
"Reply RES in", "nlm.res_in", FT_UINT32, BASE_DEC,
NULL, 0, "The response to this MSG packet is in this packet", HFILL }},
{ &hf_nlm_time, {
"Time from request", "nlm.time", FT_RELATIVE_TIME, BASE_NONE,
NULL, 0, "Time between Request and Reply for async NLM calls", HFILL }},
};
static gint *ett[] = {
&ett_nlm,
&ett_nlm_lock,
};
module_t *nlm_module;
proto_nlm = proto_register_protocol("Network Lock Manager Protocol",
"NLM", "nlm");
proto_register_field_array(proto_nlm, hf, array_length(hf));
proto_register_subtree_array(ett, array_length(ett));
nlm_module = prefs_register_protocol(proto_nlm, NULL);
prefs_register_bool_preference(nlm_module, "msg_res_matching",
"Match MSG/RES packets for async NLM",
"Whether the dissector will track and match MSG and RES calls for asynchronous NLM",
&nlm_match_msgres);
nlm_msg_res_unmatched = wmem_map_new_autoreset(wmem_epan_scope(), wmem_file_scope(),
nlm_msg_res_unmatched_hash, nlm_msg_res_unmatched_equal);
nlm_msg_res_matched = wmem_map_new_autoreset(wmem_epan_scope(), wmem_file_scope(),
nlm_msg_res_matched_hash, nlm_msg_res_matched_equal);
}
void
proto_reg_handoff_nlm(void)
{
/* Register the protocol as RPC */
rpc_init_prog(proto_nlm, NLM_PROGRAM, ett_nlm,
G_N_ELEMENTS(nlm_vers_info), nlm_vers_info);
}
/*
* Editor modelines - http://www.wireshark.org/tools/modelines.html
*
* Local variables:
* c-basic-offset: 8
* tab-width: 8
* indent-tabs-mode: t
* End:
*
* vi: set shiftwidth=8 tabstop=8 noexpandtab:
* :indentSize=8:tabSize=8:noTabs=false:
*/