Ethereal-dev: [Ethereal-dev] WINS Replication dissector
Note: This archive is from the project's previous web site, ethereal.com. This list is no longer active.
From: Stefan Metzmacher <metze@xxxxxxxxx>
Date: Wed, 7 Sep 2005 13:30:26 +0200
Hi *, can some apply this for me? I have allready uploaded some stuff to the Wiki http://wiki.ethereal.com/WINS-Replication -- metze -- Stefan (metze) Metzmcher <metze at samba dot org>
Index: epan/dissectors/packet-winsrepl.c =================================================================== --- epan/dissectors/packet-winsrepl.c (Revision 0) +++ epan/dissectors/packet-winsrepl.c (Revision 0) @@ -0,0 +1,850 @@ +/* + * packet-winsrepl.c + * + * Routines for WINS Replication packet dissection + * + * Copyright 2005 Stefan Metzmacher <metze@xxxxxxxxx> + * + * $Id$ + * + * Ethereal - Network traffic analyzer + * By Gerald Combs <gerald@xxxxxxxxxxxx> + * Copyright 1998 Gerald Combs + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + */ + +#ifdef HAVE_CONFIG_H +# include "config.h" +#endif + +#include <stdio.h> + +#include <time.h> +#include <string.h> +#include <glib.h> +#include <ctype.h> +#include <epan/packet.h> +#include <epan/conversation.h> +#include <epan/strutil.h> +#include <epan/prefs.h> +#include <epan/reassemble.h> +#include <epan/tap.h> + +#include "packet-windows-common.h" +#include "packet-netbios.h" + +#include "packet-winsrepl.h" + +static gboolean winsrepl_reassemble = TRUE; + +struct winsrepl_frame_data { + struct wrepl_wrap w; +}; + +static int proto_winsrepl = -1; + +static int hf_winsrepl_size = -1; +static int hf_winsrepl_opcode = -1; +static int hf_winsrepl_assoc_ctx = -1; +static int hf_winsrepl_mess_type = -1; + +static int hf_winsrepl_start_minor_version = -1; +static int hf_winsrepl_start_major_version = -1; + +static int hf_winsrepl_stop_reason = -1; + +static int hf_winsrepl_replication_command = -1; + +static int hf_winsrepl_owner_address = -1; +static int hf_winsrepl_owner_max_version = -1; +static int hf_winsrepl_owner_min_version = -1; +static int hf_winsrepl_owner_type = -1; + +static int hf_winsrepl_table_partner_count = -1; +static int hf_winsrepl_table_initiator = -1; + +static int hf_winsrepl_ip_owner = -1; +static int hf_winsrepl_ip_ip = -1; +static int hf_winsrepl_addr_list_num_ips = -1; + +static int hf_winsrepl_name_len = -1; +static int hf_winsrepl_name_flags = -1; +static int hf_winsrepl_name_group_flag = -1; +static int hf_winsrepl_name_id = -1; +static int hf_winsrepl_name_unknown = -1; + +static int hf_winsrepl_reply_num_names = -1; + +static gint ett_winsrepl = -1; + +static gint ett_winsrepl_start = -1; +static gint ett_winsrepl_stop = -1; +static gint ett_winsrepl_replication = -1; + +static gint ett_winsrepl_owner = -1; +static gint ett_winsrepl_table_reply = -1; + +static gint ett_winsrepl_ip = -1; +static gint ett_winsrepl_addr_list = -1; + +static gint ett_winsrepl_name = -1; +static gint ett_winsrepl_send_reply = -1; + +dissector_handle_t winsrepl_handle; + +static unsigned int glb_winsrepl_tcp_port = WINS_REPLICATION_PORT; + +static const char * +decode_winsrepl_replication_cmd(enum wrepl_replication_cmd cmd) +{ + switch (cmd) { + case WREPL_REPL_TABLE_QUERY: + return "WREPL_REPL_TABLE_QUERY"; + case WREPL_REPL_TABLE_REPLY: + return "WREPL_REPL_TABLE_REPLY"; + case WREPL_REPL_SEND_REQUEST: + return "WREPL_REPL_SEND_REQUEST"; + case WREPL_REPL_SEND_REPLY: + return "WREPL_REPL_SEND_REPLY"; + case WREPL_REPL_UPDATE: + return "WREPL_REPL_UPDATE"; + case WREPL_REPL_INFORM: + return "WREPL_REPL_INFORM"; + } + return "UNKNOWN"; +} + +static const char * +decode_winsrepl_message_type(enum wrepl_mess_type type) +{ + switch (type) { + case WREPL_START_ASSOCIATION: + return "WREPL_START_ASSOCIATION"; + case WREPL_START_ASSOCIATION_REPLY: + return "WREPL_START_ASSOCIATION_REPLY"; + case WREPL_STOP_ASSOCIATION: + return "WREPL_STOP_ASSOCIATION"; + case WREPL_REPLICATION: + return "WREPL_REPLICATION"; + } + return "UNKNOWN"; +} + +static int +dissect_winsrepl_start(tvbuff_t *winsrepl_tvb, _U_ packet_info *pinfo, + int winsrepl_offset, proto_tree *winsrepl_tree, + struct winsrepl_frame_data *winsrepl) +{ + struct wrepl_start *start = &winsrepl->w.packet.message.start; + proto_item *start_item = NULL; + proto_tree *start_tree = NULL; + + if (winsrepl_tree) { + start_item = proto_tree_add_text(winsrepl_tree, winsrepl_tvb, winsrepl_offset, -1 , "WREPL_START_ASSOCIATION"); + start_tree = proto_item_add_subtree(start_item, ett_winsrepl_start); + } + + /* ASSOC_CTX */ + start->assoc_ctx = tvb_get_ntohl(winsrepl_tvb, winsrepl_offset); + proto_tree_add_uint(start_tree, hf_winsrepl_assoc_ctx, winsrepl_tvb, winsrepl_offset, 4, start->assoc_ctx); + winsrepl_offset += 4; + + /* MINOR VERSION */ + start->minor_version = tvb_get_ntohs(winsrepl_tvb, winsrepl_offset); + proto_tree_add_uint(start_tree, hf_winsrepl_start_minor_version, winsrepl_tvb, winsrepl_offset, 2, start->minor_version); + winsrepl_offset += 2; + + /* MAJOR VERSION */ + start->major_version = tvb_get_ntohs(winsrepl_tvb, winsrepl_offset); + proto_tree_add_uint(start_tree, hf_winsrepl_start_major_version, winsrepl_tvb, winsrepl_offset, 2, start->major_version); + winsrepl_offset += 2; + + return winsrepl_offset; +} + +static int +dissect_winsrepl_stop(tvbuff_t *winsrepl_tvb, _U_ packet_info *pinfo, + int winsrepl_offset, proto_tree *winsrepl_tree, + struct winsrepl_frame_data *winsrepl) +{ + struct wrepl_stop *stop = &winsrepl->w.packet.message.stop; + proto_item *stop_item = NULL; + proto_tree *stop_tree = NULL; + + if (winsrepl_tree) { + stop_item = proto_tree_add_text(winsrepl_tree, winsrepl_tvb, winsrepl_offset, -1 , "WREPL_STOP_ASSOCIATION"); + stop_tree = proto_item_add_subtree(stop_item, ett_winsrepl_stop); + } + + /* REASON */ + stop->reason = tvb_get_ntohl(winsrepl_tvb, winsrepl_offset); + proto_tree_add_uint(stop_tree, hf_winsrepl_stop_reason, winsrepl_tvb, winsrepl_offset, 4, stop->reason); + winsrepl_offset += 4; + + return winsrepl_offset; +} + +static int +dissect_winsrepl_table_query(tvbuff_t *winsrepl_tvb, packet_info *pinfo, + int winsrepl_offset, proto_tree *winsrepl_tree, + struct winsrepl_frame_data *winsrepl) +{ + /* Nothing to do here */ + return winsrepl_offset; +} + +static int +dissect_winsrepl_wins_owner(tvbuff_t *winsrepl_tvb, _U_ packet_info *pinfo, + int winsrepl_offset, proto_tree *winsrepl_tree, + _U_ struct winsrepl_frame_data *winsrepl, + struct wrepl_wins_owner *owner, + proto_tree *sub_tree, + guint32 index) +{ + proto_item *owner_item = NULL; + proto_tree *owner_tree = NULL; + const guint8 *addr_ptr; + guint32 addr; + + if (sub_tree) { + owner_item = proto_tree_add_text(sub_tree, winsrepl_tvb, winsrepl_offset, 24 , "Wins Owner [%u]", index); + owner_tree = proto_item_add_subtree(owner_item, ett_winsrepl_owner); + } else if (winsrepl_tree) { + owner_item = proto_tree_add_text(winsrepl_tree, winsrepl_tvb, winsrepl_offset, 24 , "Wins Owner"); + owner_tree = proto_item_add_subtree(owner_item, ett_winsrepl_owner); + } + + /* ADDRESS */ + addr_ptr = tvb_get_ptr(winsrepl_tvb, winsrepl_offset, 4); + addr = tvb_get_letohl(winsrepl_tvb, winsrepl_offset); + SET_ADDRESS(&owner->address, AT_IPv4, 4, addr_ptr); + proto_tree_add_ipv4(owner_tree, hf_winsrepl_owner_address, winsrepl_tvb, winsrepl_offset, 4, addr); + winsrepl_offset += 4; + + /* MAX_VERSION */ + owner->max_version = tvb_get_ntoh64(winsrepl_tvb, winsrepl_offset); + proto_tree_add_uint64(owner_tree, hf_winsrepl_owner_max_version, winsrepl_tvb, winsrepl_offset, 8, owner->max_version); + winsrepl_offset += 8; + + /* MIN_VERSION */ + owner->min_version = tvb_get_ntoh64(winsrepl_tvb, winsrepl_offset); + proto_tree_add_uint64(owner_tree, hf_winsrepl_owner_min_version, winsrepl_tvb, winsrepl_offset, 8, owner->min_version); + winsrepl_offset += 8; + + /* TYPE */ + owner->type = tvb_get_ntohl(winsrepl_tvb, winsrepl_offset); + proto_tree_add_uint(owner_tree, hf_winsrepl_owner_type, winsrepl_tvb, winsrepl_offset, 4, owner->type); + winsrepl_offset += 4; + + return winsrepl_offset; +} + +static int +dissect_winsrepl_table_reply(tvbuff_t *winsrepl_tvb, packet_info *pinfo, + int winsrepl_offset, proto_tree *winsrepl_tree, + struct winsrepl_frame_data *winsrepl) +{ + struct wrepl_table *table = &winsrepl->w.packet.message.replication.info.table; + struct wrepl_wins_owner owner; + proto_item *table_item = NULL; + proto_tree *table_tree = NULL; + const guint8 *initiator_ptr; + guint32 initiator; + guint32 i; + + if (winsrepl_tree) { + table_item = proto_tree_add_text(winsrepl_tree, winsrepl_tvb, winsrepl_offset, -1 , "WREPL_REPL_TABLE_REPLY"); + table_tree = proto_item_add_subtree(table_item, ett_winsrepl_table_reply); + } + + /* PARTNER COUNT */ + table->partner_count = tvb_get_ntohl(winsrepl_tvb, winsrepl_offset); + proto_tree_add_uint(table_tree, hf_winsrepl_table_partner_count, winsrepl_tvb, winsrepl_offset, 4, table->partner_count); + winsrepl_offset += 4; + + for (i=0; i < table->partner_count; i++) { + winsrepl_offset = dissect_winsrepl_wins_owner(winsrepl_tvb, pinfo, + winsrepl_offset, table_tree, + winsrepl, &owner, table_tree, i); + } + + /* INITIATOR */ + initiator_ptr= tvb_get_ptr(winsrepl_tvb, winsrepl_offset, 4); + initiator = tvb_get_letohl(winsrepl_tvb, winsrepl_offset); + SET_ADDRESS(&table->initiator, AT_IPv4, 4, initiator_ptr); + proto_tree_add_ipv4(table_tree, hf_winsrepl_table_initiator, winsrepl_tvb, winsrepl_offset, 4, initiator); + winsrepl_offset += 4; + + return winsrepl_offset; +} + +static int +dissect_winsrepl_send_request(tvbuff_t *winsrepl_tvb, packet_info *pinfo, + int winsrepl_offset, proto_tree *winsrepl_tree, + struct winsrepl_frame_data *winsrepl) +{ + struct wrepl_wins_owner *owner = &winsrepl->w.packet.message.replication.info.owner; + + winsrepl_offset = dissect_winsrepl_wins_owner(winsrepl_tvb, pinfo, + winsrepl_offset, winsrepl_tree, + winsrepl, owner, NULL, 0); + + return winsrepl_offset; +} + +static int +dissect_winsrepl_wins_ip(tvbuff_t *winsrepl_tvb, _U_ packet_info *pinfo, + int winsrepl_offset, proto_tree *winsrepl_tree, + _U_ struct winsrepl_frame_data *winsrepl, + struct wrepl_ip *ip, + proto_tree *sub_tree, + guint32 index) +{ + proto_item *ip_item = NULL; + proto_tree *ip_tree = NULL; + const guint8 *addr_ptr; + guint32 addr; + + if (sub_tree) { + ip_item = proto_tree_add_text(sub_tree, winsrepl_tvb, winsrepl_offset, 8 , "Wins IP [%u]", index); + ip_tree = proto_item_add_subtree(ip_item, ett_winsrepl_ip); + } else if (winsrepl_tree) { + ip_item = proto_tree_add_text(winsrepl_tree, winsrepl_tvb, winsrepl_offset, 8 , "Wins IP"); + ip_tree = proto_item_add_subtree(ip_item, ett_winsrepl_ip); + } + + /* OWNER */ + addr_ptr= tvb_get_ptr(winsrepl_tvb, winsrepl_offset, 4); + addr = tvb_get_letohl(winsrepl_tvb, winsrepl_offset); + SET_ADDRESS(&ip->owner, AT_IPv4, 4, addr_ptr); + proto_tree_add_ipv4(ip_tree, hf_winsrepl_ip_owner, winsrepl_tvb, winsrepl_offset, 4, addr); + winsrepl_offset += 4; + + /* IP */ + addr_ptr= tvb_get_ptr(winsrepl_tvb, winsrepl_offset, 4); + addr = tvb_get_letohl(winsrepl_tvb, winsrepl_offset); + SET_ADDRESS(&ip->ip, AT_IPv4, 4, addr_ptr); + proto_tree_add_ipv4(ip_tree, hf_winsrepl_ip_ip, winsrepl_tvb, winsrepl_offset, 4, addr); + proto_item_append_text(ip_item, ": %s", ip_to_str(ip->ip.data)); + winsrepl_offset += 4; + + return winsrepl_offset; +} + +static int +dissect_winsrepl_wins_address_list(tvbuff_t *winsrepl_tvb, packet_info *pinfo, + int winsrepl_offset, proto_tree *winsrepl_tree, + struct winsrepl_frame_data *winsrepl, + struct wrepl_address_list *addresses, + proto_item *parent_item) +{ + proto_item *addr_list_item = NULL; + proto_tree *addr_list_tree = NULL; + int old_offset = winsrepl_offset; + struct wrepl_ip ip; + guint32 i; + + if (winsrepl_tree) { + addr_list_item = proto_tree_add_text(winsrepl_tree, winsrepl_tvb, winsrepl_offset, -1 , "Wins Address LIst"); + addr_list_tree = proto_item_add_subtree(addr_list_item, ett_winsrepl_addr_list); + } + + /* NUM_IPS */ + addresses->num_ips = tvb_get_letohl(winsrepl_tvb, winsrepl_offset); + proto_tree_add_uint(addr_list_tree, hf_winsrepl_addr_list_num_ips, winsrepl_tvb, winsrepl_offset, 4, addresses->num_ips); + winsrepl_offset += 4; + + for (i=0; i < addresses->num_ips; i++) { + winsrepl_offset = dissect_winsrepl_wins_ip(winsrepl_tvb, pinfo, + winsrepl_offset, addr_list_tree, + winsrepl, &ip, addr_list_tree, i); + if (i == 0) { + proto_item_append_text(parent_item, ": %s", ip_to_str(ip.ip.data)); + proto_item_append_text(addr_list_item, ": %s", ip_to_str(ip.ip.data)); + } else { + proto_item_append_text(parent_item, ", %s", ip_to_str(ip.ip.data)); + proto_item_append_text(addr_list_item, ", %s", ip_to_str(ip.ip.data)); + } + } + + proto_item_set_len(addr_list_item, winsrepl_offset - old_offset); + + return winsrepl_offset; +} + +static int +dissect_winsrepl_wins_name(tvbuff_t *winsrepl_tvb, packet_info *pinfo, + int winsrepl_offset, proto_tree *winsrepl_tree, + struct winsrepl_frame_data *winsrepl, + struct wrepl_wins_name *name, + proto_tree *sub_tree, + guint32 index) +{ + proto_item *name_item = NULL; + proto_tree *name_tree = NULL; + int old_offset = winsrepl_offset; + tvbuff_t *name_tvb = NULL; + char name_str[(NETBIOS_NAME_LEN - 1)*4 + 1]; + int name_type; + const guint8 *addr_ptr; + guint32 addr; + + if (sub_tree) { + name_item = proto_tree_add_text(sub_tree, winsrepl_tvb, winsrepl_offset, -1 , "Wins Name [%u]", index); + name_tree = proto_item_add_subtree(name_item, ett_winsrepl_name); + } else if (winsrepl_tree) { + name_item = proto_tree_add_text(winsrepl_tree, winsrepl_tvb, winsrepl_offset, -1 , "Wins Name"); + name_tree = proto_item_add_subtree(name_item, ett_winsrepl_name); + } + + /* NAME_LEN */ + name->name_len = tvb_get_ntohl(winsrepl_tvb, winsrepl_offset); + proto_tree_add_uint(name_tree, hf_winsrepl_name_len, winsrepl_tvb, winsrepl_offset, 4, name->name_len); + winsrepl_offset += 4; + + /* NAME: TODO! */ + name_tvb = tvb_new_subset(winsrepl_tvb, winsrepl_offset, name->name_len, name->name_len); + netbios_add_name("Name", name_tvb, 0, name_tree); + name_type = get_netbios_name(name_tvb, 0, name_str); + proto_item_append_text(name_item, ": %s<%02x>", name_str, name_type); + winsrepl_offset += name->name_len; + + /* ALIGN to 4 Byte */ + winsrepl_offset += ((winsrepl_offset & (4-1)) == 0 ? 0 : (4 - (winsrepl_offset & (4-1)))); + + /* FLAGS */ + name->flags = tvb_get_ntohl(winsrepl_tvb, winsrepl_offset); + proto_tree_add_uint(name_tree, hf_winsrepl_name_flags, winsrepl_tvb, winsrepl_offset, 4, name->flags); + winsrepl_offset += 4; + + /* GROUP_FLAG */ + name->group_flag = tvb_get_letohl(winsrepl_tvb, winsrepl_offset); + proto_tree_add_uint(name_tree, hf_winsrepl_name_group_flag, winsrepl_tvb, winsrepl_offset, 4, name->group_flag); + winsrepl_offset += 4; + + /* ID */ + name->id = tvb_get_ntoh64(winsrepl_tvb, winsrepl_offset); + proto_tree_add_uint64(name_tree, hf_winsrepl_name_id, winsrepl_tvb, winsrepl_offset, 8, name->id); + winsrepl_offset += 8; + + switch (name->flags & 2) { + case 0: + /* IP */ + addr_ptr= tvb_get_ptr(winsrepl_tvb, winsrepl_offset, 4); + addr = tvb_get_letohl(winsrepl_tvb, winsrepl_offset); + SET_ADDRESS(&name->addresses.ip, AT_IPv4, 4, addr_ptr); + proto_tree_add_ipv4(name_tree, hf_winsrepl_ip_ip, winsrepl_tvb, winsrepl_offset, 4, addr); + proto_item_append_text(name_item, ": %s", ip_to_str(name->addresses.ip.data)); + winsrepl_offset += 4; + break; + case 2: + winsrepl_offset = dissect_winsrepl_wins_address_list(winsrepl_tvb, pinfo, + winsrepl_offset, name_tree, + winsrepl, &name->addresses.addresses, name_item); + break; + } + + + /* UNKNOWN, little or big endian??? */ + addr_ptr= tvb_get_ptr(winsrepl_tvb, winsrepl_offset, 4); + addr = tvb_get_letohl(winsrepl_tvb, winsrepl_offset); + SET_ADDRESS(&name->unknown, AT_IPv4, 4, addr_ptr); + proto_tree_add_ipv4(name_tree, hf_winsrepl_name_unknown, winsrepl_tvb, winsrepl_offset, 4, addr); + winsrepl_offset += 4; + + proto_item_set_len(name_item, winsrepl_offset - old_offset); + + return winsrepl_offset; +} + +static int +dissect_winsrepl_send_reply(tvbuff_t *winsrepl_tvb, packet_info *pinfo, + int winsrepl_offset, proto_tree *winsrepl_tree, + struct winsrepl_frame_data *winsrepl) +{ + struct wrepl_send_reply *reply = &winsrepl->w.packet.message.replication.info.reply; + struct wrepl_wins_name name; + proto_item *rep_item = NULL; + proto_tree *rep_tree = NULL; + guint32 i; + + if (winsrepl_tree) { + rep_item = proto_tree_add_text(winsrepl_tree, winsrepl_tvb, winsrepl_offset, -1 , "WREPL_REPL_SEND_REPLY"); + rep_tree = proto_item_add_subtree(rep_item, ett_winsrepl_send_reply); + } + + /* NUM NAMES */ + reply->num_names = tvb_get_ntohl(winsrepl_tvb, winsrepl_offset); + proto_tree_add_uint(rep_tree, hf_winsrepl_reply_num_names, winsrepl_tvb, winsrepl_offset, 4, reply->num_names); + winsrepl_offset += 4; + + for (i=0; i < reply->num_names; i++) { + winsrepl_offset = dissect_winsrepl_wins_name(winsrepl_tvb, pinfo, + winsrepl_offset, rep_tree, + winsrepl, &name, rep_tree, i); + } + + return winsrepl_offset; +} + +static int +dissect_winsrepl_update(tvbuff_t *winsrepl_tvb, packet_info *pinfo, + int winsrepl_offset, proto_tree *winsrepl_tree, + struct winsrepl_frame_data *winsrepl) +{ + return winsrepl_offset; +} + +static int +dissect_winsrepl_inform(tvbuff_t *winsrepl_tvb, packet_info *pinfo, + int winsrepl_offset, proto_tree *winsrepl_tree, + struct winsrepl_frame_data *winsrepl) +{ + winsrepl_offset = dissect_winsrepl_table_reply(winsrepl_tvb, pinfo, + winsrepl_offset, winsrepl_tree, + winsrepl); + return winsrepl_offset; +} + +static int +dissect_winsrepl_replication(tvbuff_t *winsrepl_tvb, packet_info *pinfo, + int winsrepl_offset, proto_tree *winsrepl_tree, + struct winsrepl_frame_data *winsrepl) +{ + struct wrepl_replication *repl = &winsrepl->w.packet.message.replication; + proto_item *repl_item = NULL; + proto_tree *repl_tree = NULL; + + if (winsrepl_tree) { + repl_item = proto_tree_add_text(winsrepl_tree, winsrepl_tvb, winsrepl_offset, -1 , "WREPL_REPLICATION"); + repl_tree = proto_item_add_subtree(repl_item, ett_winsrepl_replication); + } + + /* REPLIICATION_CMD */ + repl->command = tvb_get_ntohl(winsrepl_tvb, winsrepl_offset); + proto_tree_add_uint_format(repl_tree, hf_winsrepl_replication_command, winsrepl_tvb, winsrepl_offset, 4, + repl->command, "Replication Cmd: %s (0x%08X)", + decode_winsrepl_replication_cmd(repl->command), repl->command); + winsrepl_offset += 4; + + switch (repl->command) { + case WREPL_REPL_TABLE_QUERY: + winsrepl_offset = dissect_winsrepl_table_query(winsrepl_tvb, pinfo, + winsrepl_offset, repl_tree, + winsrepl); + break; + case WREPL_REPL_TABLE_REPLY: + winsrepl_offset = dissect_winsrepl_table_reply(winsrepl_tvb, pinfo, + winsrepl_offset, repl_tree, + winsrepl); + break; + case WREPL_REPL_SEND_REQUEST: + winsrepl_offset = dissect_winsrepl_send_request(winsrepl_tvb, pinfo, + winsrepl_offset, repl_tree, + winsrepl); + break; + case WREPL_REPL_SEND_REPLY: + winsrepl_offset = dissect_winsrepl_send_reply(winsrepl_tvb, pinfo, + winsrepl_offset, repl_tree, + winsrepl); + break; + case WREPL_REPL_UPDATE: + winsrepl_offset = dissect_winsrepl_update(winsrepl_tvb, pinfo, + winsrepl_offset, repl_tree, + winsrepl); + break; + case WREPL_REPL_INFORM: + winsrepl_offset = dissect_winsrepl_inform(winsrepl_tvb, pinfo, + winsrepl_offset, repl_tree, + winsrepl); + break; + } + + return winsrepl_offset; +} + +static void +dissect_winsrepl_pdu(tvbuff_t *tvb, packet_info *pinfo, proto_tree *parent_tree) +{ + int winsrepl_offset = 0; + tvbuff_t *winsrepl_tvb = NULL; + proto_item *winsrepl_item = NULL; + proto_tree *winsrepl_tree = NULL; + struct winsrepl_frame_data _winsrepl_frame; + struct winsrepl_frame_data *winsrepl = &_winsrepl_frame; + + if (check_col(pinfo->cinfo, COL_PROTOCOL)){ + col_set_str(pinfo->cinfo, COL_PROTOCOL, "WINS-Replication"); + } + if (check_col(pinfo->cinfo, COL_INFO)){ + col_clear(pinfo->cinfo, COL_INFO); + } + + winsrepl_tvb = tvb_new_subset(tvb, 0, -1, -1); + + if (parent_tree) { + winsrepl_item = proto_tree_add_item(parent_tree, proto_winsrepl, winsrepl_tvb, winsrepl_offset, -1, FALSE); + winsrepl_tree = proto_item_add_subtree(winsrepl_item, ett_winsrepl); + } + + /* SIZE */ + winsrepl->w.size = tvb_get_ntohl(winsrepl_tvb, winsrepl_offset); + proto_tree_add_uint(winsrepl_tree, hf_winsrepl_size, winsrepl_tvb, winsrepl_offset, 4, winsrepl->w.size); + winsrepl_offset += 4; + + proto_item_set_len(winsrepl_item, winsrepl->w.size + 4); + + /* OPCODE */ + winsrepl->w.packet.opcode = tvb_get_ntohl(winsrepl_tvb, winsrepl_offset); + proto_tree_add_uint(winsrepl_tree, hf_winsrepl_opcode, winsrepl_tvb, winsrepl_offset, 4, winsrepl->w.packet.opcode); + winsrepl_offset += 4; + + /* ASSOC_CTX */ + winsrepl->w.packet.assoc_ctx = tvb_get_ntohl(winsrepl_tvb, winsrepl_offset); + proto_tree_add_uint(winsrepl_tree, hf_winsrepl_assoc_ctx, winsrepl_tvb, winsrepl_offset, 4, winsrepl->w.packet.assoc_ctx); + winsrepl_offset += 4; + + /* MESSAGE_TYPE */ + winsrepl->w.packet.mess_type = tvb_get_ntohl(winsrepl_tvb, winsrepl_offset); + proto_tree_add_uint_format(winsrepl_tree, hf_winsrepl_mess_type, winsrepl_tvb, winsrepl_offset, 4, + winsrepl->w.packet.mess_type, "Message Type: %s (0x%08X)", + decode_winsrepl_message_type(winsrepl->w.packet.mess_type), + winsrepl->w.packet.mess_type); + winsrepl_offset += 4; + + switch (winsrepl->w.packet.mess_type) { + case WREPL_START_ASSOCIATION: + winsrepl_offset = dissect_winsrepl_start(winsrepl_tvb, pinfo, + winsrepl_offset, winsrepl_tree, + winsrepl); + break; + case WREPL_START_ASSOCIATION_REPLY: + winsrepl_offset = dissect_winsrepl_start(winsrepl_tvb, pinfo, + winsrepl_offset, winsrepl_tree, + winsrepl); + break; + case WREPL_STOP_ASSOCIATION: + winsrepl_offset = dissect_winsrepl_stop(winsrepl_tvb, pinfo, + winsrepl_offset, winsrepl_tree, + winsrepl); + break; + case WREPL_REPLICATION: + winsrepl_offset = dissect_winsrepl_replication(winsrepl_tvb, pinfo, + winsrepl_offset, winsrepl_tree, + winsrepl); + break; + } + + return; +} + +static void +dissect_winsrepl(tvbuff_t *tvb, packet_info *pinfo, proto_tree *parent_tree) +{ + int offset = 0; + + if (!winsrepl_reassemble || !pinfo->can_desegment) { + dissect_winsrepl_pdu(tvb, pinfo, parent_tree); + return; + } + + while (tvb_reported_length_remaining(tvb, offset) > 0) { + guint length_remaining = 0; + tvbuff_t *pdu_tvb = NULL; + guint32 pdu_size = 0; + + length_remaining = tvb_ensure_length_remaining(tvb, offset); + if (length_remaining < 4) { + pinfo->desegment_offset = offset; + pinfo->desegment_len = 4 - length_remaining; + return; + } + + pdu_size = tvb_get_ntohl(tvb, offset); + pdu_size += 4; + + if (length_remaining < pdu_size) { + pinfo->want_pdu_tracking = 2; + pinfo->bytes_until_next_pdu = pdu_size - length_remaining; + pinfo->desegment_offset = offset; + pinfo->desegment_len = pdu_size - length_remaining; + return; + } + + pdu_tvb = tvb_new_subset(tvb, offset, pdu_size, pdu_size); + + dissect_winsrepl_pdu(pdu_tvb, pinfo, parent_tree); + + offset += pdu_size; + } + + return; +} + +void +proto_register_winsrepl(void) +{ + static hf_register_info hf[] = { + { &hf_winsrepl_size, { + "Packet Size", "winsrepl.size", + FT_UINT32, BASE_DEC, NULL, 0x0, + "WINS Replication Packet Size", HFILL }}, + + { &hf_winsrepl_opcode, { + "Opcode", "winsrepl.opcode", + FT_UINT32, BASE_HEX, NULL, 0x0, + "WINS Replication Opcode", HFILL }}, + + { &hf_winsrepl_assoc_ctx, { + "Assoc_Ctx", "winsrepl.assoc_ctx", + FT_UINT32, BASE_HEX, NULL, 0x0, + "WINS Replication Assoc_Ctx", HFILL }}, + + { &hf_winsrepl_mess_type, { + "Assoc_Ctx", "winsrepl.message_type", + FT_UINT32, BASE_DEC, NULL, 0x0, + "WINS Replication Message_Type", HFILL }}, + + { &hf_winsrepl_start_minor_version, { + "Minor Version", "winsrepl.minor_version", + FT_UINT16, BASE_DEC, NULL, 0x0, + "WINS Replication Minor Version", HFILL }}, + + { &hf_winsrepl_start_major_version, { + "Major Version", "winsrepl.major_version", + FT_UINT16, BASE_DEC, NULL, 0x0, + "WINS Replication Major Version", HFILL }}, + + { &hf_winsrepl_stop_reason, { + "Reason", "winsrepl.reason", + FT_UINT32, BASE_HEX, NULL, 0x0, + "WINS Replication Reason", HFILL }}, + + { &hf_winsrepl_replication_command, { + "Replication Command", "winsrepl.repl_cmd", + FT_UINT32, BASE_HEX, NULL, 0x0, + "WINS Replication Command", HFILL }}, + + { &hf_winsrepl_owner_address, { + "Owner Address", "winsrepl.owner_address", + FT_IPv4, BASE_NONE, NULL, 0x0, + "WINS Replication Owner Address", HFILL }}, + + { &hf_winsrepl_owner_max_version, { + "Max Version", "winsrepl.max_version", + FT_UINT64, BASE_DEC, NULL, 0x0, + "WINS Replication Max Version", HFILL }}, + + { &hf_winsrepl_owner_min_version, { + "Min Version", "winsrepl.min_version", + FT_UINT64, BASE_DEC, NULL, 0x0, + "WINS Replication Min Version", HFILL }}, + + { &hf_winsrepl_owner_type, { + "Owner Type", "winsrepl.owner_type", + FT_UINT32, BASE_DEC, NULL, 0x0, + "WINS Replication Owner Type", HFILL }}, + + { &hf_winsrepl_table_partner_count, { + "Partner Count", "winsrepl.partner_count", + FT_UINT32, BASE_DEC, NULL, 0x0, + "WINS Replication Partner Count", HFILL }}, + + { &hf_winsrepl_table_initiator, { + "Initiator", "winsrepl.initiator", + FT_IPv4, BASE_NONE, NULL, 0x0, + "WINS Replication Initiator", HFILL }}, + + { &hf_winsrepl_ip_owner, { + "IP Owner", "winsrepl.ip_owner", + FT_IPv4, BASE_NONE, NULL, 0x0, + "WINS Replication IP Owner", HFILL }}, + + { &hf_winsrepl_ip_ip, { + "IP Address", "winsrepl.ip_address", + FT_IPv4, BASE_NONE, NULL, 0x0, + "WINS Replication IP Address", HFILL }}, + + { &hf_winsrepl_addr_list_num_ips, { + "Num IPs", "winsrepl.num_ips", + FT_UINT32, BASE_DEC, NULL, 0x0, + "WINS Replication Num IPs", HFILL }}, + + { &hf_winsrepl_name_len, { + "Name Len", "winsrepl.name_len", + FT_UINT32, BASE_DEC, NULL, 0x0, + "WINS Replication Name Len", HFILL }}, + + { &hf_winsrepl_name_flags, { + "Name Flags", "winsrepl.name_flags", + FT_UINT32, BASE_HEX, NULL, 0x0, + "WINS Replication Name Flags", HFILL }}, + + { &hf_winsrepl_name_group_flag, { + "Name Group Flag", "winsrepl.name_group_flag", + FT_UINT32, BASE_HEX, NULL, 0x0, + "WINS Replication Name Group Flag", HFILL }}, + + { &hf_winsrepl_name_id, { + "Name Id", "winsrepl.name_id", + FT_UINT64, BASE_DEC, NULL, 0x0, + "WINS Replication Name Id", HFILL }}, + + { &hf_winsrepl_name_unknown, { + "Unknown IP", "winsrepl.unknown", + FT_IPv4, BASE_NONE, NULL, 0x0, + "WINS Replication Unknown IP", HFILL }}, + + { &hf_winsrepl_reply_num_names, { + "Num Names", "winsrepl.num_names", + FT_UINT32, BASE_DEC, NULL, 0x0, + "WINS Replication Num Names", HFILL }}, + }; + + static gint *ett[] = { + &ett_winsrepl, + &ett_winsrepl_start, + &ett_winsrepl_stop, + &ett_winsrepl_replication, + &ett_winsrepl_owner, + &ett_winsrepl_table_reply, + &ett_winsrepl_ip, + &ett_winsrepl_addr_list, + &ett_winsrepl_name, + &ett_winsrepl_send_reply, + }; + + module_t *winsrepl_module; + + proto_winsrepl = proto_register_protocol("WINS (Windows Internet Name Service) Replication", + "WINS-Replication", "winsrepl"); + proto_register_subtree_array(ett, array_length(ett)); + proto_register_field_array(proto_winsrepl, hf, array_length(hf)); + + winsrepl_module = prefs_register_protocol(proto_winsrepl, NULL); + prefs_register_bool_preference(winsrepl_module, "reassemble", + "Reassemble WINS-Replication messages spanning multiple TCP segments", + "Whether the WINS-Replication dissector should reassemble messages spanning multiple TCP segments." + " To use this option, you must also enable \"Allow subdissectors to reassemble TCP streams\" in the TCP protocol settings.", + &winsrepl_reassemble); +} + +void +proto_reg_handoff_winsrepl(void) +{ + winsrepl_handle = create_dissector_handle(dissect_winsrepl, proto_winsrepl); + dissector_add("tcp.port", glb_winsrepl_tcp_port, winsrepl_handle); +} Index: epan/dissectors/packet-winsrepl.h =================================================================== --- epan/dissectors/packet-winsrepl.h (Revision 0) +++ epan/dissectors/packet-winsrepl.h (Revision 0) @@ -0,0 +1,129 @@ +/* header auto-generated by pidl */ + +/* + * winsrepl.h (generated from winsrepl.idl) + * + * Modified for ethereal: + * + * uint8_t => guint8 + * uint16_t => guint16 + * uint32_t => guint32 + * uint64_t => guint64 + * ipv4addres (const char *) => address + * DATA_BLOB => (skipped) + */ + +#ifndef _HEADER_wrepl +#define _HEADER_wrepl + +#define WINS_REPLICATION_PORT ( 42 ) +#define WREPL_OPCODE_BITS ( 0x7800 ) +struct wrepl_ip { + address owner; + address ip; +}/* [flag(LIBNDR_FLAG_BIGENDIAN)] */; + +struct wrepl_address_list { + guint32 num_ips; + struct wrepl_ip *ips; +}/* [flag(LIBNDR_FLAG_LITTLE_ENDIAN)] */; + +union wrepl_addresses { + address ip;/* [case(0)] */ + struct wrepl_address_list addresses;/* [case(2)] */ +}/* [nodiscriminant] */; + +struct wrepl_wins_name { + guint32 name_len; + guint8 *name; + guint32 flags; + guint32 group_flag;/* [flag(LIBNDR_FLAG_LITTLE_ENDIAN)] */ + guint64 id; + union wrepl_addresses addresses;/* [switch_is(flags&2)] */ + address unknown; +}; + +struct wrepl_send_reply { + guint32 num_names; + struct wrepl_wins_name *names; +}; + +struct wrepl_wins_owner { + address address; + guint64 max_version; + guint64 min_version; + guint32 type; +}; + +struct wrepl_table { + guint32 partner_count; + struct wrepl_wins_owner *partners; + address initiator; +}; + +enum wrepl_replication_cmd { + WREPL_REPL_TABLE_QUERY=0, + WREPL_REPL_TABLE_REPLY=1, + WREPL_REPL_SEND_REQUEST=2, + WREPL_REPL_SEND_REPLY=3, + WREPL_REPL_UPDATE=4, + WREPL_REPL_INFORM=8 +}; + +union wrepl_replication_info { + struct wrepl_table table;/* [case(WREPL_REPL_TABLE_REPLY)] */ + struct wrepl_wins_owner owner;/* [case(WREPL_REPL_SEND_REQUEST)] */ + struct wrepl_send_reply reply;/* [case(WREPL_REPL_SEND_REPLY)] */ +}/* [nodiscriminant] */; + +struct wrepl_replication { + enum wrepl_replication_cmd command; + union wrepl_replication_info info;/* [switch_is(command)] */ +}; + +struct wrepl_start { + guint32 assoc_ctx; + guint16 minor_version; + guint16 major_version; +}; + +struct wrepl_stop { + guint32 reason; +}; + +enum wrepl_mess_type { + WREPL_START_ASSOCIATION=0, + WREPL_START_ASSOCIATION_REPLY=1, + WREPL_STOP_ASSOCIATION=2, + WREPL_REPLICATION=3 +}; + +union wrepl_message { + struct wrepl_start start;/* [case(WREPL_START_ASSOCIATION)] */ + struct wrepl_start start_reply;/* [case(WREPL_START_ASSOCIATION_REPLY)] */ + struct wrepl_stop stop;/* [case(WREPL_STOP_ASSOCIATION)] */ + struct wrepl_replication replication;/* [case(WREPL_REPLICATION)] */ +}/* [nodiscriminant] */; + +struct wrepl_packet { + guint32 opcode; + guint32 assoc_ctx; + enum wrepl_mess_type mess_type; + union wrepl_message message;/* [switch_is(mess_type)] */ + /*DATA_BLOB padding;*//* [flag(LIBNDR_FLAG_REMAINING)] */ +}/* [gensize,public,flag(LIBNDR_FLAG_BIGENDIAN|LIBNDR_PRINT_ARRAY_HEX)] */; + +struct wrepl_wrap { + guint32 size;/* [value(ndr_size_wrepl_packet(&packet,ndr->flags))] */ + struct wrepl_packet packet; +}/* [public,flag(LIBNDR_FLAG_BIGENDIAN|LIBNDR_PRINT_ARRAY_HEX)] */; + + +struct decode_winsrepl { + struct { + struct wrepl_wrap p; + } in; + +}; + +#endif /* _HEADER_wrepl */ Index: epan/dissectors/Makefile.common =================================================================== --- epan/dissectors/Makefile.common (Revision 15680) +++ epan/dissectors/Makefile.common (Arbeitskopie) @@ -596,6 +596,7 @@ packet-wfleet-hdlc.c \ packet-who.c \ packet-windows-common.c \ + packet-winsrepl.c \ packet-wlancap.c \ packet-wlancertextn.c \ packet-wsp.c \ @@ -848,6 +849,7 @@ packet-wap.h \ packet-wccp.h \ packet-windows-common.h \ + packet-winsrepl.h \ packet-wlancap.h \ packet-wlancertextn.h \ packet-wsp.h \
Attachment:
pgp_VXRDBchkq.pgp
Description: PGP signature
- Follow-Ups:
- [Ethereal-dev] Re: WINS Replication dissector
- From: ronnie sahlberg
- [Ethereal-dev] Re: WINS Replication dissector
- Prev by Date: [Ethereal-dev] Buildbot crash output
- Next by Date: [Ethereal-dev] Buildbot crash output
- Previous by thread: [Ethereal-dev] New ethereal-win32-libs tag
- Next by thread: [Ethereal-dev] Re: WINS Replication dissector
- Index(es):