diff options
Diffstat (limited to 'epan/dissectors/packet-nlm.c')
| -rw-r--r-- | epan/dissectors/packet-nlm.c | 1237 |
1 files changed, 1237 insertions, 0 deletions
diff --git a/epan/dissectors/packet-nlm.c b/epan/dissectors/packet-nlm.c new file mode 100644 index 0000000000..7aa352c082 --- /dev/null +++ b/epan/dissectors/packet-nlm.c @@ -0,0 +1,1237 @@ +/* packet-nlm.c + * Routines for nlm dissection + * + * $Id$ + * + * Ethereal - Network traffic analyzer + * By Gerald Combs <gerald@ethereal.com> + * 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., 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-nlm.h" +#include "prefs.h" +#include <string.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). + * + * 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 GHashTable *nlm_msg_res_unmatched = NULL; +static GHashTable *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 char *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 gboolean +nlm_msg_res_unmatched_free_all(gpointer key_arg _U_, gpointer value, gpointer user_data _U_) +{ + nlm_msg_res_unmatched_data *umd = (nlm_msg_res_unmatched_data *)value; + + g_free((gpointer)umd->cookie); + g_free(umd); + + return TRUE; +} +static gboolean +nlm_msg_res_matched_free_all(gpointer key_arg _U_, gpointer value, gpointer user_data _U_) +{ + nlm_msg_res_matched_data *md = (nlm_msg_res_matched_data *)value; + + g_free(md); + + return TRUE; +} + +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 = (guint)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)); +} +static gint +nlm_msg_res_matched_equal(gconstpointer k1, gconstpointer k2) +{ + guint mk1 = (guint)k1; + guint mk2 = (guint)k2; + + return( mk1==mk2 ); +} + +static void +nlm_msg_res_match_init(void) +{ + if(nlm_msg_res_unmatched != NULL){ + g_hash_table_foreach_remove(nlm_msg_res_unmatched, + nlm_msg_res_unmatched_free_all, NULL); + } else { + nlm_msg_res_unmatched=g_hash_table_new(nlm_msg_res_unmatched_hash, + nlm_msg_res_unmatched_equal); + } + + if(nlm_msg_res_matched != NULL){ + g_hash_table_foreach_remove(nlm_msg_res_matched, + nlm_msg_res_matched_free_all, NULL); + } else { + nlm_msg_res_matched=g_hash_table_new(nlm_msg_res_matched_hash, + nlm_msg_res_matched_equal); + } +} + +static void +nlm_print_msgres_reply(packet_info *pinfo, proto_tree *tree, tvbuff_t *tvb) +{ + nlm_msg_res_matched_data *md; + + md=g_hash_table_lookup(nlm_msg_res_matched, (gconstpointer)pinfo->fd->num); + if(md){ + nstime_t ns; + proto_tree_add_uint(tree, hf_nlm_request_in, tvb, 0, 0, md->req_frame); + ns.secs= pinfo->fd->abs_secs-md->ns.secs; + ns.nsecs=pinfo->fd->abs_usecs*1000-md->ns.nsecs; + if(ns.nsecs<0){ + ns.nsecs+=1000000000; + ns.secs--; + } + 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=g_hash_table_lookup(nlm_msg_res_matched, (gconstpointer)pinfo->fd->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=g_hash_table_lookup(nlm_msg_res_matched, (gconstpointer)pinfo->fd->num); + if(md && md->rep_frame){ + nfs_fhandle_data_t *fhd; + fhd=(nfs_fhandle_data_t *)g_hash_table_lookup( + nfs_fhandle_frame_table, + (gconstpointer)md->req_frame); + if(fhd){ + dissect_fhandle_hidden(pinfo, + tree, fhd); + } + } +} +static void +nlm_match_fhandle_request(packet_info *pinfo, proto_tree *tree) +{ + nlm_msg_res_matched_data *md; + + md=g_hash_table_lookup(nlm_msg_res_matched, (gconstpointer)pinfo->fd->num); + if(md && md->rep_frame){ + nfs_fhandle_data_t *fhd; + fhd=(nfs_fhandle_data_t *)g_hash_table_lookup( + nfs_fhandle_frame_table, + (gconstpointer)md->rep_frame); + if(fhd){ + dissect_fhandle_hidden(pinfo, + tree, fhd); + } + } +} + +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=(const char *)tvb_get_ptr(tvb, offset+4, -1); + + /* have we seen this cookie before? */ + old_umd=g_hash_table_lookup(nlm_msg_res_unmatched, (gconstpointer)&umd); + if(old_umd){ + nlm_msg_res_matched_data *md; + + md=g_malloc(sizeof(nlm_msg_res_matched_data)); + md->req_frame=old_umd->req_frame; + md->rep_frame=pinfo->fd->num; + md->ns=old_umd->ns; + g_hash_table_insert(nlm_msg_res_matched, (gpointer)md->req_frame, (gpointer)md); + g_hash_table_insert(nlm_msg_res_matched, (gpointer)md->rep_frame, (gpointer)md); + + g_hash_table_remove(nlm_msg_res_unmatched, (gconstpointer)old_umd); + g_free((gpointer)old_umd->cookie); + g_free(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=g_malloc(sizeof(nlm_msg_res_unmatched_data)); + umd->req_frame=pinfo->fd->num; + umd->ns.secs=pinfo->fd->abs_secs; + umd->ns.nsecs=pinfo->fd->abs_usecs*1000; + umd->cookie_len=tvb_get_ntohl(tvb, offset); + umd->cookie=tvb_memdup(tvb, offset+4, umd->cookie_len); + + /* remove any old duplicates */ + old_umd=g_hash_table_lookup(nlm_msg_res_unmatched, (gconstpointer)umd); + if(old_umd){ + g_hash_table_remove(nlm_msg_res_unmatched, (gconstpointer)old_umd); + g_free((gpointer)old_umd->cookie); + g_free(old_umd); + } + + /* add new one */ + g_hash_table_insert(nlm_msg_res_unmatched, (gpointer)umd, (gpointer)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) +{ + proto_item* lock_item = NULL; + proto_tree* lock_tree = NULL; + + if (tree) { + lock_item = proto_tree_add_item(tree, hf_nlm_lock, tvb, + offset, -1, FALSE); + 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_nfs_fh3(tvb, offset, pinfo, lock_tree, "fh", NULL); + + offset = dissect_rpc_data(tvb, lock_tree, hf_nlm_lock_owner, offset); + + offset = dissect_rpc_uint32(tvb, lock_tree, hf_nlm_lock_svid, 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_test(tvbuff_t *tvb, int offset, packet_info *pinfo, + proto_tree *tree, int version) +{ + if(nlm_match_msgres){ + rpc_call_info_value *rpc_call=pinfo->private_data; + 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); + return offset; +} + +static int +dissect_nlm_lock(tvbuff_t *tvb, int offset, packet_info *pinfo, + proto_tree *tree,int version) +{ + if(nlm_match_msgres){ + rpc_call_info_value *rpc_call=pinfo->private_data; + 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); + 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) +{ + if(nlm_match_msgres){ + rpc_call_info_value *rpc_call=pinfo->private_data; + 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); + return offset; +} + +static int +dissect_nlm_unlock(tvbuff_t *tvb, int offset, packet_info *pinfo, + proto_tree *tree,int version) +{ + if(nlm_match_msgres){ + rpc_call_info_value *rpc_call=pinfo->private_data; + 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); + return offset; +} + +static int +dissect_nlm_granted(tvbuff_t *tvb, int offset, packet_info *pinfo, + proto_tree *tree,int version) +{ + if(nlm_match_msgres){ + rpc_call_info_value *rpc_call=pinfo->private_data; + 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); + return offset; +} + + +static int +dissect_nlm_test_res(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, + proto_tree *tree,int version) +{ + proto_item* lock_item = NULL; + proto_tree* lock_tree = NULL; + + if(nlm_match_msgres){ + rpc_call_info_value *rpc_call=pinfo->private_data; + 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, FALSE); + if (lock_item) + 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, FALSE); + 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_) +{ + proto_item* lock_item = NULL; + proto_tree* lock_tree = NULL; + + 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, FALSE); + 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_nfs_fh3(tvb, offset, pinfo, lock_tree, "fh", NULL); + + 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_) +{ + offset = dissect_rpc_data(tvb, tree, hf_nlm_cookie, offset); + 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_stat, 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, int offset, packet_info *pinfo _U_, + proto_tree *tree) +{ + if(nlm_match_msgres){ + rpc_call_info_value *rpc_call=pinfo->private_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); + offset = dissect_rpc_uint32(tvb, tree, hf_nlm_stat, offset); + return offset; +} + +static int +dissect_nlm1_test(tvbuff_t *tvb, int offset, packet_info *pinfo, + proto_tree *tree) +{ + return dissect_nlm_test(tvb,offset,pinfo,tree,1); +} + +static int +dissect_nlm4_test(tvbuff_t *tvb, int offset, packet_info *pinfo, + proto_tree *tree) +{ + return dissect_nlm_test(tvb,offset,pinfo,tree,4); +} + + +static int +dissect_nlm1_lock(tvbuff_t *tvb, int offset, packet_info *pinfo, + proto_tree *tree) +{ + return dissect_nlm_lock(tvb,offset,pinfo,tree,1); +} + +static int +dissect_nlm4_lock(tvbuff_t *tvb, int offset, packet_info *pinfo, + proto_tree *tree) +{ + return dissect_nlm_lock(tvb,offset,pinfo,tree,4); +} + + +static int +dissect_nlm1_cancel(tvbuff_t *tvb, int offset, packet_info *pinfo, + proto_tree *tree) +{ + return dissect_nlm_cancel(tvb,offset,pinfo,tree,1); +} + +static int +dissect_nlm4_cancel(tvbuff_t *tvb, int offset, packet_info *pinfo, + proto_tree *tree) +{ + return dissect_nlm_cancel(tvb,offset,pinfo,tree,4); +} + + +static int +dissect_nlm1_unlock(tvbuff_t *tvb, int offset, packet_info *pinfo, + proto_tree *tree) +{ + return dissect_nlm_unlock(tvb,offset,pinfo,tree,1); +} + +static int +dissect_nlm4_unlock(tvbuff_t *tvb, int offset, packet_info *pinfo, + proto_tree *tree) +{ + return dissect_nlm_unlock(tvb,offset,pinfo,tree,4); +} + + +static int +dissect_nlm1_granted(tvbuff_t *tvb, int offset, packet_info *pinfo, + proto_tree *tree) +{ + return dissect_nlm_granted(tvb,offset,pinfo,tree,1); +} + +static int +dissect_nlm4_granted(tvbuff_t *tvb, int offset, packet_info *pinfo, + proto_tree *tree) +{ + return dissect_nlm_granted(tvb,offset,pinfo,tree,4); +} + + +static int +dissect_nlm1_test_res(tvbuff_t *tvb, int offset, packet_info *pinfo, + proto_tree *tree) +{ + return dissect_nlm_test_res(tvb,offset,pinfo,tree,1); +} + +static int +dissect_nlm4_test_res(tvbuff_t *tvb, int offset, packet_info *pinfo, + proto_tree *tree) +{ + return dissect_nlm_test_res(tvb,offset,pinfo,tree,4); +} + +static int +dissect_nlm3_share(tvbuff_t *tvb, int offset, packet_info *pinfo, + proto_tree *tree) +{ + return dissect_nlm_share(tvb,offset,pinfo,tree,3); +} + +static int +dissect_nlm4_share(tvbuff_t *tvb, int offset, packet_info *pinfo, + proto_tree *tree) +{ + return dissect_nlm_share(tvb,offset,pinfo,tree,4); +} + +static int +dissect_nlm3_shareres(tvbuff_t *tvb, int offset, packet_info *pinfo, + proto_tree *tree) +{ + return dissect_nlm_shareres(tvb,offset,pinfo,tree,3); +} + +static int +dissect_nlm4_shareres(tvbuff_t *tvb, int offset, packet_info *pinfo, + proto_tree *tree) +{ + return dissect_nlm_shareres(tvb,offset,pinfo,tree,4); +} + +static int +dissect_nlm3_freeall(tvbuff_t *tvb, int offset, packet_info *pinfo, + proto_tree *tree) +{ + return dissect_nlm_freeall(tvb,offset,pinfo,tree,3); +} + +static int +dissect_nlm4_freeall(tvbuff_t *tvb, int offset, packet_info *pinfo, + proto_tree *tree) +{ + return dissect_nlm_freeall(tvb,offset,pinfo,tree,4); +} + + + + +/* proc number, "proc name", dissect_request, dissect_reply */ +/* NULL as function pointer means: type of arguments is "void". */ +/* NLM protocol version 1 */ +static const vsff nlm1_proc[] = { + { NLM_NULL, "NULL", + NULL, NULL }, + { 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, NULL }, + { NLM_LOCK_MSG, "LOCK_MSG", + dissect_nlm1_lock, NULL }, + { NLM_CANCEL_MSG, "CANCEL_MSG", + dissect_nlm1_cancel, NULL }, + { NLM_UNLOCK_MSG, "UNLOCK_MSG", + dissect_nlm1_unlock, NULL }, + { NLM_GRANTED_MSG, "GRANTED_MSG", + dissect_nlm1_granted, NULL }, + { NLM_TEST_RES, "TEST_RES", + dissect_nlm1_test_res, NULL }, + { NLM_LOCK_RES, "LOCK_RES", + dissect_nlm_gen_reply, NULL }, + { NLM_CANCEL_RES, "CANCEL_RES", + dissect_nlm_gen_reply, NULL }, + { NLM_UNLOCK_RES, "UNLOCK_RES", + dissect_nlm_gen_reply, NULL }, + { NLM_GRANTED_RES, "GRANTED_RES", + dissect_nlm_gen_reply, NULL }, + { 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", + NULL, NULL }, + { 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, NULL }, + { NLM_LOCK_MSG, "LOCK_MSG", + dissect_nlm1_lock, NULL }, + { NLM_CANCEL_MSG, "CANCEL_MSG", + dissect_nlm1_cancel, NULL }, + { NLM_UNLOCK_MSG, "UNLOCK_MSG", + dissect_nlm1_unlock, NULL }, + { NLM_GRANTED_MSG, "GRANTED_MSG", + dissect_nlm1_granted, NULL }, + { NLM_TEST_RES, "TEST_RES", + dissect_nlm1_test_res, NULL }, + { NLM_LOCK_RES, "LOCK_RES", + dissect_nlm_gen_reply, NULL }, + { NLM_CANCEL_RES, "CANCEL_RES", + dissect_nlm_gen_reply, NULL }, + { NLM_UNLOCK_RES, "UNLOCK_RES", + dissect_nlm_gen_reply, NULL }, + { NLM_GRANTED_RES, "GRANTED_RES", + dissect_nlm_gen_reply, NULL }, + { 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", + NULL, NULL }, + { 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, NULL }, + { NLM_LOCK_MSG, "LOCK_MSG", + dissect_nlm1_lock, NULL }, + { NLM_CANCEL_MSG, "CANCEL_MSG", + dissect_nlm1_cancel, NULL }, + { NLM_UNLOCK_MSG, "UNLOCK_MSG", + dissect_nlm1_unlock, NULL }, + { NLM_GRANTED_MSG, "GRANTED_MSG", + dissect_nlm1_granted, NULL }, + { NLM_TEST_RES, "TEST_RES", + dissect_nlm1_test_res, NULL }, + { NLM_LOCK_RES, "LOCK_RES", + dissect_nlm_gen_reply, NULL }, + { NLM_CANCEL_RES, "CANCEL_RES", + dissect_nlm_gen_reply, NULL }, + { NLM_UNLOCK_RES, "UNLOCK_RES", + dissect_nlm_gen_reply, NULL }, + { NLM_GRANTED_RES, "GRANTED_RES", + dissect_nlm_gen_reply, NULL }, + { 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, NULL }, + { 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", + NULL, NULL }, + { 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, NULL }, + { NLM_LOCK_MSG, "LOCK_MSG", + dissect_nlm4_lock, NULL }, + { NLM_CANCEL_MSG, "CANCEL_MSG", + dissect_nlm4_cancel, NULL }, + { NLM_UNLOCK_MSG, "UNLOCK_MSG", + dissect_nlm4_unlock, NULL }, + { NLM_GRANTED_MSG, "GRANTED_MSG", + dissect_nlm4_granted, NULL }, + { NLM_TEST_RES, "TEST_RES", + dissect_nlm4_test_res, NULL }, + { NLM_LOCK_RES, "LOCK_RES", + dissect_nlm_gen_reply, NULL }, + { NLM_CANCEL_RES, "CANCEL_RES", + dissect_nlm_gen_reply, NULL }, + { NLM_UNLOCK_RES, "UNLOCK_RES", + dissect_nlm_gen_reply, NULL }, + { NLM_GRANTED_RES, "GRANTED_RES", + dissect_nlm_gen_reply, NULL }, + { 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, NULL }, + { 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 struct true_false_string yesno = { "Yes", "No" }; + + +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, "V1 Procedure", HFILL }}, + { &hf_nlm_procedure_v2, { + "V2 Procedure", "nlm.procedure_v2", FT_UINT32, BASE_DEC, + VALS(nlm2_proc_vals), 0, "V2 Procedure", HFILL }}, + { &hf_nlm_procedure_v3, { + "V3 Procedure", "nlm.procedure_v3", FT_UINT32, BASE_DEC, + VALS(nlm3_proc_vals), 0, "V3 Procedure", HFILL }}, + { &hf_nlm_procedure_v4, { + "V4 Procedure", "nlm.procedure_v4", FT_UINT32, BASE_DEC, + VALS(nlm4_proc_vals), 0, "V4 Procedure", HFILL }}, + { &hf_nlm_cookie, { + "cookie", "nlm.cookie", FT_BYTES, BASE_DEC, + NULL, 0, "cookie", HFILL }}, + { &hf_nlm_block, { + "block", "nlm.block", FT_BOOLEAN, BASE_NONE, + &yesno, 0, "block", HFILL }}, + { &hf_nlm_exclusive, { + "exclusive", "nlm.exclusive", FT_BOOLEAN, BASE_NONE, + &yesno, 0, "exclusive", HFILL }}, + { &hf_nlm_lock, { + "lock", "nlm.lock", FT_NONE, 0, + NULL, 0, "lock", HFILL }}, + { &hf_nlm_lock_caller_name, { + "caller_name", "nlm.lock.caller_name", FT_STRING, BASE_NONE, + NULL, 0, "caller_name", HFILL }}, + { &hf_nlm_lock_owner, { + "owner", "nlm.lock.owner", FT_BYTES, BASE_DEC, + NULL, 0, "owner", HFILL }}, + { &hf_nlm_lock_svid, { + "svid", "nlm.lock.svid", FT_UINT32, BASE_DEC, + NULL, 0, "svid", HFILL }}, + { &hf_nlm_lock_l_offset64, { + "l_offset", "nlm.lock.l_offset", FT_UINT64, BASE_DEC, + NULL, 0, "l_offset", HFILL }}, + { &hf_nlm_lock_l_offset, { + "l_offset", "nlm.lock.l_offset", FT_UINT32, BASE_DEC, + NULL, 0, "l_offset", HFILL }}, + { &hf_nlm_lock_l_len64, { + "l_len", "nlm.lock.l_len", FT_UINT64, BASE_DEC, + NULL, 0, "l_len", HFILL }}, + { &hf_nlm_lock_l_len, { + "l_len", "nlm.lock.l_len", FT_UINT32, BASE_DEC, + NULL, 0, "l_len", HFILL }}, + { &hf_nlm_reclaim, { + "reclaim", "nlm.reclaim", FT_BOOLEAN, BASE_NONE, + &yesno, 0, "reclaim", 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, "stat", HFILL }}, + { &hf_nlm_test_stat, { + "test_stat", "nlm.test_stat", FT_NONE, 0, + NULL, 0, "test_stat", HFILL }}, + { &hf_nlm_test_stat_stat, { + "stat", "nlm.test_stat.stat", FT_UINT32, BASE_DEC, + VALS(names_nlm_stats), 0, "stat", HFILL }}, + { &hf_nlm_holder, { + "holder", "nlm.holder", FT_NONE, 0, + NULL, 0, "holder", HFILL }}, + { &hf_nlm_share, { + "share", "nlm.share", FT_NONE, 0, + NULL, 0, "share", HFILL }}, + { &hf_nlm_share_mode, { + "mode", "nlm.share.mode", FT_UINT32, BASE_DEC, + VALS(names_fsh_mode), 0, "mode", HFILL }}, + { &hf_nlm_share_access, { + "access", "nlm.share.access", FT_UINT32, BASE_DEC, + VALS(names_fsh_access), 0, "access", HFILL }}, + { &hf_nlm_share_name, { + "name", "nlm.share.name", FT_STRING, BASE_NONE, + NULL, 0, "name", HFILL }}, + { &hf_nlm_sequence, { + "sequence", "nlm.sequence", FT_INT32, BASE_DEC, + NULL, 0, "sequence", 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); + register_init_routine(nlm_msg_res_match_init); +} + +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, hf_nlm_procedure_v1); + rpc_init_proc_table(NLM_PROGRAM, 2, nlm2_proc, hf_nlm_procedure_v2); + rpc_init_proc_table(NLM_PROGRAM, 3, nlm3_proc, hf_nlm_procedure_v3); + rpc_init_proc_table(NLM_PROGRAM, 4, nlm4_proc, hf_nlm_procedure_v4); +} |