diff options
Diffstat (limited to 'epan/dissectors/packet-smb-browse.c')
| -rw-r--r-- | epan/dissectors/packet-smb-browse.c | 1166 |
1 files changed, 1166 insertions, 0 deletions
diff --git a/epan/dissectors/packet-smb-browse.c b/epan/dissectors/packet-smb-browse.c new file mode 100644 index 0000000000..103e7799aa --- /dev/null +++ b/epan/dissectors/packet-smb-browse.c @@ -0,0 +1,1166 @@ +/* packet-smb-browse.c + * Routines for SMB Browser packet dissection + * Copyright 1999, Richard Sharpe <rsharpe@ns.aus.com> + * + * $Id$ + * + * Ethereal - Network traffic analyzer + * By Gerald Combs <gerald@ethereal.com> + * Copyright 1998 Gerald Combs + * + * Copied from packet-pop.c + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + */ + +#ifdef HAVE_CONFIG_H +# include "config.h" +#endif + +#include <stdio.h> + +#include <time.h> +#include <string.h> +#include <glib.h> +#include <ctype.h> +#include <epan/packet.h> +#include "smb.h" + +#include "packet-smb-browse.h" +#include "packet-dcerpc.h" + +static int proto_smb_browse = -1; +static int hf_command = -1; +static int hf_update_count = -1; +static int hf_periodicity = -1; +static int hf_server_name = -1; +static int hf_mb_server_name = -1; +static int hf_mb_reset_command = -1; +static int hf_mb_reset_demote = -1; +static int hf_mb_reset_flush = -1; +static int hf_mb_reset_stop = -1; +static int hf_os_major = -1; +static int hf_os_minor = -1; +static int hf_server_type = -1; +static int hf_server_type_workstation = -1; +static int hf_server_type_server = -1; +static int hf_server_type_sql = -1; +static int hf_server_type_domain = -1; +static int hf_server_type_backup = -1; +static int hf_server_type_time = -1; +static int hf_server_type_apple = -1; +static int hf_server_type_novell = -1; +static int hf_server_type_member = -1; +static int hf_server_type_print = -1; +static int hf_server_type_dialin = -1; +static int hf_server_type_xenix = -1; +static int hf_server_type_ntw = -1; +static int hf_server_type_wfw = -1; +static int hf_server_type_nts = -1; +static int hf_server_type_potentialb = -1; +static int hf_server_type_backupb = -1; +static int hf_server_type_masterb = -1; +static int hf_server_type_domainmasterb = -1; +static int hf_server_type_osf = -1; +static int hf_server_type_vms = -1; +static int hf_server_type_w95 = -1; +static int hf_server_type_local = -1; +static int hf_server_type_domainenum = -1; +static int hf_election_version = -1; +static int hf_proto_major = -1; +static int hf_proto_minor = -1; +static int hf_sig_const = -1; +static int hf_server_comment = -1; +static int hf_unused_flags = -1; +static int hf_response_computer_name = -1; +static int hf_election_criteria = -1; +static int hf_election_desire = -1; +static int hf_election_desire_flags_backup = -1; +static int hf_election_desire_flags_standby = -1; +static int hf_election_desire_flags_master = -1; +static int hf_election_desire_flags_domain_master = -1; +static int hf_election_desire_flags_wins = -1; +static int hf_election_desire_flags_nt = -1; +static int hf_election_revision = -1; +static int hf_election_os = -1; +static int hf_election_os_wfw = -1; +static int hf_election_os_ntw = -1; +static int hf_election_os_nts = -1; +static int hf_server_uptime = -1; +static int hf_backup_count = -1; +static int hf_backup_token = -1; +static int hf_backup_server = -1; +static int hf_browser_to_promote = -1; + +static gint ett_browse = -1; +static gint ett_browse_flags = -1; +static gint ett_browse_election_criteria = -1; +static gint ett_browse_election_os = -1; +static gint ett_browse_election_desire = -1; +static gint ett_browse_reset_cmd_flags = -1; + +#define SERVER_WORKSTATION 0 +#define SERVER_SERVER 1 +#define SERVER_SQL_SERVER 2 +#define SERVER_DOMAIN_CONTROLLER 3 +#define SERVER_BACKUP_CONTROLLER 4 +#define SERVER_TIME_SOURCE 5 +#define SERVER_APPLE_SERVER 6 +#define SERVER_NOVELL_SERVER 7 +#define SERVER_DOMAIN_MEMBER_SERVER 8 +#define SERVER_PRINT_QUEUE_SERVER 9 +#define SERVER_DIALIN_SERVER 10 +#define SERVER_XENIX_SERVER 11 +#define SERVER_NT_WORKSTATION 12 +#define SERVER_WINDOWS_FOR_WORKGROUPS 13 +#define SERVER_NT_SERVER 15 +#define SERVER_POTENTIAL_BROWSER 16 +#define SERVER_BACKUP_BROWSER 17 +#define SERVER_MASTER_BROWSER 18 +#define SERVER_DOMAIN_MASTER_BROWSER 19 +#define SERVER_OSF 20 +#define SERVER_VMS 21 +#define SERVER_WINDOWS_95 22 +#define SERVER_LOCAL_LIST_ONLY 30 +#define SERVER_DOMAIN_ENUM 31 + +static const value_string server_types[] = { + {SERVER_WORKSTATION, "Workstation"}, + {SERVER_SERVER, "Server"}, + {SERVER_SQL_SERVER, "SQL Server"}, + {SERVER_DOMAIN_CONTROLLER, "Domain Controller"}, + {SERVER_BACKUP_CONTROLLER, "Backup Controller"}, + {SERVER_TIME_SOURCE, "Time Source"}, + {SERVER_APPLE_SERVER, "Apple Server"}, + {SERVER_NOVELL_SERVER, "Novell Server"}, + {SERVER_DOMAIN_MEMBER_SERVER, "Domain Member Server"}, + {SERVER_PRINT_QUEUE_SERVER, "Print Queue Server"}, + {SERVER_DIALIN_SERVER, "Dialin Server"}, + {SERVER_XENIX_SERVER, "Xenix Server"}, + {SERVER_NT_WORKSTATION, "NT Workstation"}, + {SERVER_WINDOWS_FOR_WORKGROUPS, "Windows for Workgroups"}, + {SERVER_NT_SERVER, "NT Server"}, + {SERVER_POTENTIAL_BROWSER, "Potential Browser"}, + {SERVER_BACKUP_BROWSER, "Backup Browser"}, + {SERVER_MASTER_BROWSER, "Master Browser"}, + {SERVER_DOMAIN_MASTER_BROWSER, "Domain Master Browser"}, + {SERVER_OSF, "OSF"}, + {SERVER_VMS, "VMS"}, + {SERVER_WINDOWS_95, "Windows 95 or above"}, + {SERVER_LOCAL_LIST_ONLY, "Local List Only"}, + {SERVER_DOMAIN_ENUM, "Domain Enum"}, + {0, NULL} +}; + +static const value_string resetbrowserstate_command_names[] = { + { 0x01, "Stop being a master browser and become a backup browser"}, + { 0x02, "Discard browse lists, stop being a master browser, and try again"}, + { 0x04, "Stop being a master browser for ever"}, + { 0, NULL} +}; + +static true_false_string tfs_demote_to_backup = { + "Demote an LMB to a Backup Browser", + "Do not demote an LMB to a Backup Browser" +}; + +static true_false_string tfs_flush_browse_list = { + "Flush the Browse List", + "Do not Flush the Browse List" +}; + +static true_false_string tfs_stop_being_lmb = { + "Stop Being a Local Master Browser", + "Do not Stop Being a Local Master Browser" +}; + +static const true_false_string tfs_workstation = { + "This is a Workstation", + "This is NOT a Workstation" +}; +static const true_false_string tfs_server = { + "This is a Server", + "This is NOT a Server" +}; +static const true_false_string tfs_sql = { + "This is an SQL server", + "This is NOT an SQL server" +}; +static const true_false_string tfs_domain = { + "This is a Domain Controller", + "This is NOT a Domain Controller" +}; +static const true_false_string tfs_backup = { + "This is a Backup Controller", + "This is NOT a Backup Controller" +}; +static const true_false_string tfs_time = { + "This is a Time Source", + "This is NOT a Time Source" +}; +static const true_false_string tfs_apple = { + "This is an Apple host", + "This is NOT an Apple host" +}; +static const true_false_string tfs_novell = { + "This is a Novell server", + "This is NOT a Novell server" +}; +static const true_false_string tfs_member = { + "This is a Domain Member server", + "This is NOT a Domain Member server" +}; +static const true_false_string tfs_print = { + "This is a Print Queue server", + "This is NOT a Print Queue server" +}; +static const true_false_string tfs_dialin = { + "This is a Dialin server", + "This is NOT a Dialin server" +}; +static const true_false_string tfs_xenix = { + "This is a Xenix server", + "This is NOT a Xenix server" +}; +static const true_false_string tfs_ntw = { + "This is an NT Workstation", + "This is NOT an NT Workstation" +}; +static const true_false_string tfs_wfw = { + "This is a WfW host", + "This is NOT a WfW host" +}; +static const true_false_string tfs_nts = { + "This is an NT Server", + "This is NOT an NT Server" +}; +static const true_false_string tfs_potentialb = { + "This is a Potential Browser", + "This is NOT a Potential Browser" +}; +static const true_false_string tfs_backupb = { + "This is a Backup Browser", + "This is NOT a Backup Browser" +}; +static const true_false_string tfs_masterb = { + "This is a Master Browser", + "This is NOT a Master Browser" +}; +static const true_false_string tfs_domainmasterb = { + "This is a Domain Master Browser", + "This is NOT a Domain Master Browser" +}; +static const true_false_string tfs_osf = { + "This is an OSF host", + "This is NOT an OSF host" +}; +static const true_false_string tfs_vms = { + "This is a VMS host", + "This is NOT a VMS host" +}; +static const true_false_string tfs_w95 = { + "This is a Windows 95 or above host", + "This is NOT a Windows 95 or above host" +}; +static const true_false_string tfs_local = { + "This is a local list only request", + "This is NOT a local list only request" +}; +static const true_false_string tfs_domainenum = { + "This is a Domain Enum request", + "This is NOT a Domain Enum request" +}; + +#define DESIRE_BACKUP 0 +#define DESIRE_STANDBY 1 +#define DESIRE_MASTER 2 +#define DESIRE_DOMAIN_MASTER 3 +#define DESIRE_WINS 5 +#define DESIRE_NT 7 + +static const value_string desire_flags[] = { + {DESIRE_BACKUP, "Backup Browse Server"}, + {DESIRE_STANDBY, "Standby Browse Server"}, + {DESIRE_MASTER, "Master Browser"}, + {DESIRE_DOMAIN_MASTER, "Domain Master Browse Server"}, + {DESIRE_WINS, "WINS Client"}, + {DESIRE_NT, "Windows NT Advanced Server"}, + {0, NULL} +}; + +static const true_false_string tfs_desire_backup = { + "Backup Browse Server", + "NOT Backup Browse Server" + }; +static const true_false_string tfs_desire_standby = { + "Standby Browse Server", + "NOT Standby Browse Server" +}; +static const true_false_string tfs_desire_master = { + "Master Browser", + "NOT Master Browser" +}; +static const true_false_string tfs_desire_domain_master = { + "Domain Master Browse Server", + "NOT Domain Master Browse Server" +}; +static const true_false_string tfs_desire_wins = { + "WINS Client", + "NOT WINS Client" +}; +static const true_false_string tfs_desire_nt = { + "Windows NT Advanced Server", + "NOT Windows NT Advanced Server" +}; + +#define BROWSE_HOST_ANNOUNCE 1 +#define BROWSE_REQUEST_ANNOUNCE 2 +#define BROWSE_ELECTION_REQUEST 8 +#define BROWSE_BACKUP_LIST_REQUEST 9 +#define BROWSE_BACKUP_LIST_RESPONSE 10 +#define BROWSE_BECOME_BACKUP 11 +#define BROWSE_DOMAIN_ANNOUNCEMENT 12 +#define BROWSE_MASTER_ANNOUNCEMENT 13 +#define BROWSE_RESETBROWSERSTATE_ANNOUNCEMENT 14 +#define BROWSE_LOCAL_MASTER_ANNOUNCEMENT 15 + +static const value_string commands[] = { + {BROWSE_HOST_ANNOUNCE, "Host Announcement"}, + {BROWSE_REQUEST_ANNOUNCE, "Request Announcement"}, + {BROWSE_ELECTION_REQUEST, "Browser Election Request"}, + {BROWSE_BACKUP_LIST_REQUEST, "Get Backup List Request"}, + {BROWSE_BACKUP_LIST_RESPONSE, "Get Backup List Response"}, + {BROWSE_BECOME_BACKUP, "Become Backup Browser"}, + {BROWSE_DOMAIN_ANNOUNCEMENT, "Domain/Workgroup Announcement"}, + {BROWSE_MASTER_ANNOUNCEMENT, "Master Announcement"}, + {BROWSE_RESETBROWSERSTATE_ANNOUNCEMENT, "Reset Browser State Announcement"}, + {BROWSE_LOCAL_MASTER_ANNOUNCEMENT,"Local Master Announcement"}, + {0, NULL} +}; + +#define OS_WFW 0 +#define OS_NTW 4 +#define OS_NTS 5 + +static const value_string os_flags[] = { + {OS_WFW, "Windows for Workgroups"}, + {OS_NTW, "Windows NT Workstation"}, + {OS_NTS, "Windows NT Server"}, + {0, NULL} +}; + +static const true_false_string tfs_os_wfw = { + "Windows for Workgroups", + "Not Windows for Workgroups" +}; +static const true_false_string tfs_os_ntw = { + "Windows NT Workstation", + "Not Windows NT Workstation" +}; +static const true_false_string tfs_os_nts = { + "Windows NT Server", + "Not Windows NT Server" +}; + +static void +dissect_election_criterion_os(tvbuff_t *tvb, proto_tree *parent_tree, int offset) +{ + proto_tree *tree = NULL; + proto_item *item = NULL; + guint8 os; + + os = tvb_get_guint8(tvb, offset); + + if (parent_tree) { + item = proto_tree_add_uint(parent_tree, hf_election_os, tvb, offset, 1, os); + tree = proto_item_add_subtree(item, ett_browse_election_os); + } + + proto_tree_add_boolean(tree, hf_election_os_wfw, + tvb, offset, 1, os); + proto_tree_add_boolean(tree, hf_election_os_ntw, + tvb, offset, 1, os); + proto_tree_add_boolean(tree, hf_election_os_nts, + tvb, offset, 1, os); + +} + +static void +dissect_election_criterion_desire(tvbuff_t *tvb, proto_tree *parent_tree, int offset) +{ + proto_tree *tree = NULL; + proto_item *item = NULL; + guint8 desire; + + desire = tvb_get_guint8(tvb, offset); + + if (parent_tree) { + item = proto_tree_add_uint(parent_tree, hf_election_desire, tvb, offset, 1, desire); + tree = proto_item_add_subtree(item, ett_browse_election_desire); + } + + proto_tree_add_boolean(tree, hf_election_desire_flags_backup, + tvb, offset, 1, desire); + proto_tree_add_boolean(tree, hf_election_desire_flags_standby, + tvb, offset, 1, desire); + proto_tree_add_boolean(tree, hf_election_desire_flags_master, + tvb, offset, 1, desire); + proto_tree_add_boolean(tree, hf_election_desire_flags_domain_master, + tvb, offset, 1, desire); + proto_tree_add_boolean(tree, hf_election_desire_flags_wins, + tvb, offset, 1, desire); + proto_tree_add_boolean(tree, hf_election_desire_flags_nt, + tvb, offset, 1, desire); + +} + +static void +dissect_election_criterion(tvbuff_t *tvb, proto_tree *parent_tree, int offset) +{ + proto_tree *tree = NULL; + proto_item *item = NULL; + guint32 criterion; + + criterion = tvb_get_letohl(tvb, offset); + + if (parent_tree) { + item = proto_tree_add_uint(parent_tree, hf_election_criteria, tvb, offset, 4, criterion); + tree = proto_item_add_subtree(item, ett_browse_election_criteria); + } + + /* election desire */ + dissect_election_criterion_desire(tvb, tree, offset); + offset += 1; + + /* browser protocol major version */ + proto_tree_add_item(tree, hf_proto_major, tvb, offset, 1, TRUE); + offset += 1; + + /* browser protocol minor version */ + proto_tree_add_item(tree, hf_proto_minor, tvb, offset, 1, TRUE); + offset += 1; + + /* election os */ + dissect_election_criterion_os(tvb, tree, offset); + offset += 1; + +} + +/* + * XXX - this causes non-browser packets to have browser fields. + */ +int +dissect_smb_server_type_flags(tvbuff_t *tvb, int offset, packet_info *pinfo, + proto_tree *parent_tree, guint8 *drep, + gboolean infoflag) +{ + proto_tree *tree = NULL; + proto_item *item = NULL; + guint32 flags; + int i; + + if (drep != NULL) { + /* + * Called from a DCE RPC protocol dissector, for a + * protocol where a 32-bit NDR integer contains + * an server type mask; extract the server type mask + * with an NDR call. + */ + offset = dissect_ndr_uint32( + tvb, offset, pinfo, tree, drep, hf_server_type, &flags); + } else { + /* + * Called from SMB browser or RAS, where the server type + * mask is just a 4-byte little-endian quantity with no + * special NDR alignment requirement; extract it with + * "tvb_get_letohl()". + */ + flags = tvb_get_letohl(tvb, offset); + offset += 4; + } + + if (parent_tree) { + item = proto_tree_add_uint(parent_tree, hf_server_type, tvb, offset, 4, flags); + tree = proto_item_add_subtree(item, ett_browse_flags); + } + + if (infoflag) { + /* Append the type(s) of the system to the COL_INFO line ... */ + if (check_col(pinfo->cinfo, COL_INFO)) { + for (i = 0; i < 32; i++) { + if (flags & (1<<i)) { + col_append_fstr(pinfo->cinfo, COL_INFO, ", %s", + val_to_str(i, server_types, + "Unknown server type:%d")); + } + } + } + } + + proto_tree_add_boolean(tree, hf_server_type_workstation, + tvb, offset, 4, flags); + proto_tree_add_boolean(tree, hf_server_type_server, + tvb, offset, 4, flags); + proto_tree_add_boolean(tree, hf_server_type_sql, + tvb, offset, 4, flags); + proto_tree_add_boolean(tree, hf_server_type_domain, + tvb, offset, 4, flags); + proto_tree_add_boolean(tree, hf_server_type_backup, + tvb, offset, 4, flags); + proto_tree_add_boolean(tree, hf_server_type_time, + tvb, offset, 4, flags); + proto_tree_add_boolean(tree, hf_server_type_apple, + tvb, offset, 4, flags); + proto_tree_add_boolean(tree, hf_server_type_novell, + tvb, offset, 4, flags); + proto_tree_add_boolean(tree, hf_server_type_member, + tvb, offset, 4, flags); + proto_tree_add_boolean(tree, hf_server_type_print, + tvb, offset, 4, flags); + proto_tree_add_boolean(tree, hf_server_type_dialin, + tvb, offset, 4, flags); + proto_tree_add_boolean(tree, hf_server_type_xenix, + tvb, offset, 4, flags); + proto_tree_add_boolean(tree, hf_server_type_ntw, + tvb, offset, 4, flags); + proto_tree_add_boolean(tree, hf_server_type_wfw, + tvb, offset, 4, flags); + proto_tree_add_boolean(tree, hf_server_type_nts, + tvb, offset, 4, flags); + proto_tree_add_boolean(tree, hf_server_type_potentialb, + tvb, offset, 4, flags); + proto_tree_add_boolean(tree, hf_server_type_backupb, + tvb, offset, 4, flags); + proto_tree_add_boolean(tree, hf_server_type_masterb, + tvb, offset, 4, flags); + proto_tree_add_boolean(tree, hf_server_type_domainmasterb, + tvb, offset, 4, flags); + proto_tree_add_boolean(tree, hf_server_type_osf, + tvb, offset, 4, flags); + proto_tree_add_boolean(tree, hf_server_type_vms, + tvb, offset, 4, flags); + proto_tree_add_boolean(tree, hf_server_type_w95, + tvb, offset, 4, flags); + proto_tree_add_boolean(tree, hf_server_type_local, + tvb, offset, 4, flags); + proto_tree_add_boolean(tree, hf_server_type_domainenum, + tvb, offset, 4, flags); + + return offset; +} + + +static void +dissect_mailslot_browse(tvbuff_t *tvb, packet_info *pinfo, proto_tree *parent_tree) +{ + int offset = 0; + guint8 cmd; + proto_tree *tree = NULL; + proto_item *item = NULL; + guint32 periodicity; + guint8 host_name[17]; + gint namelen; + guint8 server_count, reset_cmd; + int i; + guint32 uptime; + + if (check_col(pinfo->cinfo, COL_PROTOCOL)) { + col_set_str(pinfo->cinfo, COL_PROTOCOL, "BROWSER"); + } + if (check_col(pinfo->cinfo, COL_INFO)) { + col_clear(pinfo->cinfo, COL_INFO); + } + + cmd = tvb_get_guint8(tvb, offset); + + if (check_col(pinfo->cinfo, COL_INFO)) { + /* Put in something, and replace it later */ + col_set_str(pinfo->cinfo, COL_INFO, val_to_str(cmd, commands, "Unknown command:0x%02x")); + } + + + if (parent_tree) { + item = proto_tree_add_item(parent_tree, proto_smb_browse, tvb, offset, -1, TRUE); + + tree = proto_item_add_subtree(item, ett_browse); + } + + /* command */ + proto_tree_add_uint(tree, hf_command, tvb, offset, 1, cmd); + offset += 1; + + switch (cmd) { + case BROWSE_DOMAIN_ANNOUNCEMENT: + case BROWSE_LOCAL_MASTER_ANNOUNCEMENT: + case BROWSE_HOST_ANNOUNCE: { + /* update count */ + proto_tree_add_item(tree, hf_update_count, tvb, offset, 1, TRUE); + offset += 1; + + /* periodicity (in milliseconds) */ + periodicity = tvb_get_letohl(tvb, offset); + proto_tree_add_uint_format(tree, hf_periodicity, tvb, offset, 4, + periodicity, + "Update Periodicity: %s", + time_msecs_to_str(periodicity)); + offset += 4; + + /* server name */ + tvb_get_nstringz0(tvb, offset, sizeof(host_name), host_name); + if (check_col(pinfo->cinfo, COL_INFO)) { + col_append_fstr(pinfo->cinfo, COL_INFO, " %s", host_name); + } + proto_tree_add_string_format(tree, hf_server_name, + tvb, offset, 16, + host_name, + (cmd==BROWSE_DOMAIN_ANNOUNCEMENT)? + "Domain/Workgroup: %s": + "Host Name: %s", + host_name); + offset += 16; + + /* OS major version */ + proto_tree_add_item(tree, hf_os_major, tvb, offset, 1, TRUE); + offset += 1; + + /* OS minor version */ + proto_tree_add_item(tree, hf_os_minor, tvb, offset, 1, TRUE); + offset += 1; + + /* server type flags */ + offset = dissect_smb_server_type_flags( + tvb, offset, pinfo, tree, NULL, TRUE); + + if (cmd == BROWSE_DOMAIN_ANNOUNCEMENT) { + /* + * Network Monitor claims this is a "Comment + * Pointer". I don't believe it. + * + * It's not a browser protocol major/minor + * version number, and signature constant, + * however. + */ + proto_tree_add_text(tree, tvb, offset, 4, + "Mysterious Field: 0x%08x", + tvb_get_letohl(tvb, offset)); + offset += 4; + } else { + /* browser protocol major version */ + proto_tree_add_item(tree, hf_proto_major, tvb, offset, 1, TRUE); + offset += 1; + + /* browser protocol minor version */ + proto_tree_add_item(tree, hf_proto_minor, tvb, offset, 1, TRUE); + offset += 1; + + /* signature constant */ + proto_tree_add_item(tree, hf_sig_const, tvb, offset, 2, TRUE); + offset += 2; + } + + /* master browser server name or server comment */ + namelen = tvb_strsize(tvb, offset); + proto_tree_add_item(tree, + (cmd==BROWSE_DOMAIN_ANNOUNCEMENT)? + hf_mb_server_name : hf_server_comment, + tvb, offset, namelen, TRUE); + offset += namelen; + break; + } + case BROWSE_REQUEST_ANNOUNCE: { + guint8 *computer_name; + + /* unused/unknown flags */ + proto_tree_add_item(tree, hf_unused_flags, + tvb, offset, 1, TRUE); + offset += 1; + + /* name of computer to which to send reply */ + computer_name = tvb_get_stringz(tvb, offset, &namelen); + proto_tree_add_string(tree, hf_response_computer_name, + tvb, offset, namelen, computer_name); + if (check_col(pinfo->cinfo, COL_INFO)) + col_append_fstr( + pinfo->cinfo, COL_INFO, " %s", computer_name); + g_free(computer_name); + offset += namelen; + break; + } + + case BROWSE_ELECTION_REQUEST: + /* election version */ + proto_tree_add_item(tree, hf_election_version, tvb, offset, 1, TRUE); + offset += 1; + + /* criterion */ + dissect_election_criterion(tvb, tree, offset); + offset += 4; + + /* server uptime */ + uptime = tvb_get_letohl(tvb, offset); + proto_tree_add_uint_format(tree, hf_server_uptime, + tvb, offset, 4, uptime, + "Uptime: %s", + time_msecs_to_str(uptime)); + offset += 4; + + /* next 4 bytes must be zero */ + offset += 4; + + /* server name */ + namelen = tvb_strsize(tvb, offset); + proto_tree_add_item(tree, hf_server_name, + tvb, offset, namelen, TRUE); + offset += namelen; + break; + + case BROWSE_BACKUP_LIST_REQUEST: + /* backup list requested count */ + proto_tree_add_item(tree, hf_backup_count, tvb, offset, 1, TRUE); + offset += 1; + + /* backup requested token */ + proto_tree_add_item(tree, hf_backup_token, tvb, offset, 4, TRUE); + offset += 4; + break; + + case BROWSE_BACKUP_LIST_RESPONSE: + /* backup list requested count */ + server_count = tvb_get_guint8(tvb, offset); + proto_tree_add_uint(tree, hf_backup_count, tvb, offset, 1, + server_count); + offset += 1; + + /* backup requested token */ + proto_tree_add_item(tree, hf_backup_token, tvb, offset, 4, TRUE); + offset += 4; + + /* backup server names */ + for (i = 0; i < server_count; i++) { + namelen = tvb_strsize(tvb, offset); + proto_tree_add_item(tree, hf_backup_server, + tvb, offset, namelen, TRUE); + offset += namelen; + } + break; + + case BROWSE_MASTER_ANNOUNCEMENT: + /* master browser server name */ + namelen = tvb_strsize(tvb, offset); + proto_tree_add_item(tree, hf_mb_server_name, + tvb, offset, namelen, TRUE); + offset += namelen; + break; + + case BROWSE_RESETBROWSERSTATE_ANNOUNCEMENT: { + proto_tree *sub_tree; + proto_item *reset_item; + + /* the subcommand follows ... one of three values */ + + reset_cmd = tvb_get_guint8(tvb, offset); + reset_item = proto_tree_add_uint(tree, hf_mb_reset_command, tvb, + offset, 1, reset_cmd); + sub_tree = proto_item_add_subtree(item, ett_browse_reset_cmd_flags); + proto_tree_add_boolean(sub_tree, hf_mb_reset_demote, tvb, + offset, 1, reset_cmd); + proto_tree_add_boolean(sub_tree, hf_mb_reset_flush, tvb, + offset, 1, reset_cmd); + proto_tree_add_boolean(sub_tree, hf_mb_reset_stop, tvb, + offset, 1, reset_cmd); + offset += 1; + break; + } + + case BROWSE_BECOME_BACKUP: + /* name of browser to promote */ + namelen = tvb_strsize(tvb, offset); + proto_tree_add_item(tree, hf_browser_to_promote, + tvb, offset, namelen, TRUE); + offset += namelen; + break; + } +} + +/* + * It appears that browser announcements sent to \MAILSLOT\LANMAN aren't + * the same as browser announcements sent to \MAILSLOT\BROWSE. + * Was that an older version of the protocol? + * + * The document at + * + * http://www.samba.org/samba/ftp/specs/brow_rev.txt + * + * gives both formats of host announcement packets, saying that + * "[The first] format seems wrong", that one being what appears to + * show up in \MAILSLOT\LANMAN packets, and that "[The second one] + * may be better", that one being what appears to show up in + * \MAILSLOT\BROWSE packets. + * + * XXX - what other browser packets go out to that mailslot? + */ +static void +dissect_mailslot_lanman(tvbuff_t *tvb, packet_info *pinfo, proto_tree *parent_tree) +{ + int offset = 0; + guint8 cmd; + proto_tree *tree = NULL; + proto_item *item = NULL; + guint32 periodicity; + const guint8 *host_name; + guint namelen; + + if (check_col(pinfo->cinfo, COL_PROTOCOL)) { + col_set_str(pinfo->cinfo, COL_PROTOCOL, "BROWSER"); + } + if (check_col(pinfo->cinfo, COL_INFO)) { + col_clear(pinfo->cinfo, COL_INFO); + } + + cmd = tvb_get_guint8(tvb, offset); + + if (check_col(pinfo->cinfo, COL_INFO)) { + /* Put in something, and replace it later */ + col_set_str(pinfo->cinfo, COL_INFO, val_to_str(cmd, commands, "Unknown command:0x%02x")); + } + + + if (parent_tree) { + item = proto_tree_add_item(parent_tree, proto_smb_browse, tvb, offset, -1, TRUE); + + tree = proto_item_add_subtree(item, ett_browse); + } + + /* command */ + proto_tree_add_uint(tree, hf_command, tvb, offset, 1, cmd); + offset += 1; + + switch (cmd) { + case BROWSE_DOMAIN_ANNOUNCEMENT: + case BROWSE_LOCAL_MASTER_ANNOUNCEMENT: + case BROWSE_HOST_ANNOUNCE: + + /* update count */ + proto_tree_add_item(tree, hf_update_count, tvb, offset, 1, TRUE); + offset += 1; + + /* server type flags */ + offset = dissect_smb_server_type_flags( + tvb, offset, pinfo, tree, NULL, TRUE); + + /* OS major version */ + proto_tree_add_item(tree, hf_os_major, tvb, offset, 1, TRUE); + offset += 1; + + /* OS minor version */ + proto_tree_add_item(tree, hf_os_minor, tvb, offset, 1, TRUE); + offset += 1; + + /* periodicity (in seconds; convert to milliseconds) */ + periodicity = tvb_get_letohs(tvb, offset)*1000; + proto_tree_add_uint_format(tree, hf_periodicity, tvb, offset, 2, + periodicity, + "Update Periodicity: %s", + time_msecs_to_str(periodicity)); + offset += 2; + + /* server name */ + namelen = tvb_strsize(tvb, offset); + host_name = tvb_get_ptr(tvb, offset, namelen); + if (check_col(pinfo->cinfo, COL_INFO)) { + col_append_fstr(pinfo->cinfo, COL_INFO, " %s", host_name); + } + proto_tree_add_item(tree, hf_server_name, + tvb, offset, namelen, TRUE); + offset += namelen; + + /* master browser server name or server comment */ + namelen = tvb_strsize(tvb, offset); + proto_tree_add_item(tree, + (cmd==BROWSE_DOMAIN_ANNOUNCEMENT)? + hf_mb_server_name : hf_server_comment, + tvb, offset, namelen, TRUE); + offset += namelen; + break; + } +} + +void +proto_register_smb_browse(void) +{ + static hf_register_info hf[] = { + { &hf_command, + { "Command", "browser.command", FT_UINT8, BASE_HEX, + VALS(commands), 0, "Browse command opcode", HFILL }}, + + { &hf_update_count, + { "Update Count", "browser.update_count", FT_UINT8, BASE_DEC, + NULL, 0, "Browse Update Count", HFILL }}, + + { &hf_periodicity, + { "Update Periodicity", "browser.period", FT_UINT32, BASE_DEC, + NULL, 0, "Update Periodicity in ms", HFILL }}, + + { &hf_server_name, + { "Server Name", "browser.server", FT_STRING, BASE_NONE, + NULL, 0, "BROWSE Server Name", HFILL }}, + + { &hf_mb_server_name, + { "Master Browser Server Name", "browser.mb_server", FT_STRING, BASE_NONE, + NULL, 0, "BROWSE Master Browser Server Name", HFILL }}, + + { &hf_mb_reset_command, + { "ResetBrowserState Command", "browser.reset_cmd", FT_UINT8, + BASE_HEX, VALS(&resetbrowserstate_command_names), 0, + "ResetBrowserState Command", HFILL }}, + { &hf_mb_reset_demote, + { "Demote LMB", "browser.reset_cmd.demote", FT_BOOLEAN, + 8, TFS(&tfs_demote_to_backup), 0x01, "Demote LMB", HFILL}}, + { &hf_mb_reset_flush, + { "Flush Browse List", "browser.reset_cmd.flush", FT_BOOLEAN, + 8, TFS(&tfs_flush_browse_list), 0x02, "Flush Browse List", HFILL}}, + { &hf_mb_reset_stop, + { "Stop Being LMB", "browser.reset_cmd.stop_lmb", FT_BOOLEAN, + 8, TFS(&tfs_stop_being_lmb), 0x04, "Stop Being LMB", HFILL}}, + { &hf_os_major, + { "OS Major Version", "browser.os_major", FT_UINT8, BASE_DEC, + NULL, 0, "Operating System Major Version", HFILL }}, + + { &hf_os_minor, + { "OS Minor Version", "browser.os_minor", FT_UINT8, BASE_DEC, + NULL, 0, "Operating System Minor Version", HFILL }}, + + { &hf_server_type, + { "Server Type", "browser.server_type", FT_UINT32, BASE_HEX, + NULL, 0, "Server Type Flags", HFILL }}, + + { &hf_server_type_workstation, + { "Workstation", "browser.server_type.workstation", FT_BOOLEAN, 32, + TFS(&tfs_workstation), 1<<SERVER_WORKSTATION, "Is This A Workstation?", HFILL }}, + + { &hf_server_type_server, + { "Server", "browser.server_type.server", FT_BOOLEAN, 32, + TFS(&tfs_server), 1<<SERVER_SERVER, "Is This A Server?", HFILL }}, + + { &hf_server_type_sql, + { "SQL", "browser.server_type.sql", FT_BOOLEAN, 32, + TFS(&tfs_sql), 1<<SERVER_SQL_SERVER, "Is This A SQL Server?", HFILL }}, + + { &hf_server_type_domain, + { "Domain Controller", "browser.server_type.domain_controller", FT_BOOLEAN, 32, + TFS(&tfs_domain), 1<<SERVER_DOMAIN_CONTROLLER, "Is This A Domain Controller?", HFILL }}, + + { &hf_server_type_backup, + { "Backup Controller", "browser.server_type.backup_controller", FT_BOOLEAN, 32, + TFS(&tfs_backup), 1<<SERVER_BACKUP_CONTROLLER, "Is This A Backup Domain Controller?", HFILL }}, + + { &hf_server_type_time, + { "Time Source", "browser.server_type.time", FT_BOOLEAN, 32, + TFS(&tfs_time), 1<<SERVER_TIME_SOURCE, "Is This A Time Source?", HFILL }}, + + { &hf_server_type_apple, + { "Apple", "browser.server_type.apple", FT_BOOLEAN, 32, + TFS(&tfs_apple), 1<<SERVER_APPLE_SERVER, "Is This An Apple Server ?", HFILL }}, + + { &hf_server_type_novell, + { "Novell", "browser.server_type.novell", FT_BOOLEAN, 32, + TFS(&tfs_novell), 1<<SERVER_NOVELL_SERVER, "Is This A Novell Server?", HFILL }}, + + { &hf_server_type_member, + { "Member", "browser.server_type.member", FT_BOOLEAN, 32, + TFS(&tfs_member), 1<<SERVER_DOMAIN_MEMBER_SERVER, "Is This A Domain Member Server?", HFILL }}, + + { &hf_server_type_print, + { "Print", "browser.server_type.print", FT_BOOLEAN, 32, + TFS(&tfs_print), 1<<SERVER_PRINT_QUEUE_SERVER, "Is This A Print Server?", HFILL }}, + + { &hf_server_type_dialin, + { "Dialin", "browser.server_type.dialin", FT_BOOLEAN, 32, + TFS(&tfs_dialin), 1<<SERVER_DIALIN_SERVER, "Is This A Dialin Server?", HFILL }}, + + { &hf_server_type_xenix, + { "Xenix", "browser.server_type.xenix", FT_BOOLEAN, 32, + TFS(&tfs_xenix), 1<<SERVER_XENIX_SERVER, "Is This A Xenix Server?", HFILL }}, + + { &hf_server_type_ntw, + { "NT Workstation", "browser.server_type.ntw", FT_BOOLEAN, 32, + TFS(&tfs_ntw), 1<<SERVER_NT_WORKSTATION, "Is This A NT Workstation?", HFILL }}, + + { &hf_server_type_wfw, + { "WfW", "browser.server_type.wfw", FT_BOOLEAN, 32, + TFS(&tfs_wfw), 1<<SERVER_WINDOWS_FOR_WORKGROUPS, "Is This A Windows For Workgroups Server?", HFILL }}, + + { &hf_server_type_nts, + { "NT Server", "browser.server_type.nts", FT_BOOLEAN, 32, + TFS(&tfs_nts), 1<<SERVER_NT_SERVER, "Is This A NT Server?", HFILL }}, + + { &hf_server_type_potentialb, + { "Potential Browser", "browser.server_type.browser.potential", FT_BOOLEAN, 32, + TFS(&tfs_potentialb), 1<<SERVER_POTENTIAL_BROWSER, "Is This A Potential Browser?", HFILL }}, + + { &hf_server_type_backupb, + { "Backup Browser", "browser.server_type.browser.backup", FT_BOOLEAN, 32, + TFS(&tfs_backupb), 1<<SERVER_BACKUP_BROWSER, "Is This A Backup Browser?", HFILL }}, + + { &hf_server_type_masterb, + { "Master Browser", "browser.server_type.browser.master", FT_BOOLEAN, 32, + TFS(&tfs_masterb), 1<<SERVER_MASTER_BROWSER, "Is This A Master Browser?", HFILL }}, + + { &hf_server_type_domainmasterb, + { "Domain Master Browser", "browser.server_type.browser.domain_master", FT_BOOLEAN, 32, + TFS(&tfs_domainmasterb), 1<<SERVER_DOMAIN_MASTER_BROWSER, "Is This A Domain Master Browser?", HFILL }}, + + { &hf_server_type_osf, + { "OSF", "browser.server_type.osf", FT_BOOLEAN, 32, + TFS(&tfs_osf), 1<<SERVER_OSF, "Is This An OSF server ?", HFILL }}, + + { &hf_server_type_vms, + { "VMS", "browser.server_type.vms", FT_BOOLEAN, 32, + TFS(&tfs_vms), 1<<SERVER_VMS, "Is This A VMS Server?", HFILL }}, + + { &hf_server_type_w95, + { "Windows 95+", "browser.server_type.w95", FT_BOOLEAN, 32, + TFS(&tfs_w95), 1<<SERVER_WINDOWS_95, "Is This A Windows 95 or above server?", HFILL }}, + + { &hf_server_type_local, + { "Local", "browser.server_type.local", FT_BOOLEAN, 32, + TFS(&tfs_local), 1<<SERVER_LOCAL_LIST_ONLY, "Is This A Local List Only request?", HFILL }}, + + { &hf_server_type_domainenum, + { "Domain Enum", "browser.server_type.domainenum", FT_BOOLEAN, 32, + TFS(&tfs_domainenum), 1<<SERVER_DOMAIN_ENUM, "Is This A Domain Enum request?", HFILL }}, + + { &hf_election_version, + { "Election Version", "browser.election.version", FT_UINT8, BASE_DEC, + NULL, 0, "Election Version", HFILL }}, + + { &hf_proto_major, + { "Browser Protocol Major Version", "browser.proto_major", FT_UINT8, BASE_DEC, + NULL, 0, "Browser Protocol Major Version", HFILL }}, + + { &hf_proto_minor, + { "Browser Protocol Minor Version", "browser.proto_minor", FT_UINT8, BASE_DEC, + NULL, 0, "Browser Protocol Minor Version", HFILL }}, + + { &hf_sig_const, + { "Signature", "browser.sig", FT_UINT16, BASE_HEX, + NULL, 0, "Signature Constant", HFILL }}, + + { &hf_server_comment, + { "Host Comment", "browser.comment", FT_STRINGZ, BASE_NONE, + NULL, 0, "Server Comment", HFILL }}, + + { &hf_unused_flags, + { "Unused flags", "browser.unused", FT_UINT8, BASE_HEX, + NULL, 0, "Unused/unknown flags", HFILL }}, + + { &hf_response_computer_name, + { "Response Computer Name", "browser.response_computer_name", FT_STRINGZ, BASE_NONE, + NULL, 0, "Response Computer Name", HFILL }}, + + { &hf_election_criteria, + { "Election Criteria", "browser.election.criteria", FT_UINT32, BASE_HEX, + NULL, 0, "Election Criteria", HFILL }}, + + { &hf_election_desire, + { "Election Desire", "browser.election.desire", FT_UINT8, BASE_HEX, + NULL, 0, "Election Desire", HFILL }}, + + { &hf_election_desire_flags_backup, + { "Backup", "browser.election.desire.backup", FT_BOOLEAN, 8, + TFS(&tfs_desire_backup), 1<<DESIRE_BACKUP, "Is this a backup server", HFILL }}, + + { &hf_election_desire_flags_standby, + { "Standby", "browser.election.desire.standby", FT_BOOLEAN, 8, + TFS(&tfs_desire_standby), 1<<DESIRE_STANDBY, "Is this a standby server?", HFILL }}, + + { &hf_election_desire_flags_master, + { "Master", "browser.election.desire.master", FT_BOOLEAN, 8, + TFS(&tfs_desire_master), 1<<DESIRE_MASTER, "Is this a master server", HFILL }}, + + { &hf_election_desire_flags_domain_master, + { "Domain Master", "browser.election.desire.domain_master", FT_BOOLEAN, 8, + TFS(&tfs_desire_domain_master), 1<<DESIRE_DOMAIN_MASTER, "Is this a domain master", HFILL }}, + + { &hf_election_desire_flags_wins, + { "WINS", "browser.election.desire.wins", FT_BOOLEAN, 8, + TFS(&tfs_desire_wins), 1<<DESIRE_WINS, "Is this a WINS server", HFILL }}, + + { &hf_election_desire_flags_nt, + { "NT", "browser.election.desire.nt", FT_BOOLEAN, 8, + TFS(&tfs_desire_nt), 1<<DESIRE_NT, "Is this a NT server", HFILL }}, + + { &hf_election_revision, + { "Election Revision", "browser.election.revision", FT_UINT16, BASE_DEC, + NULL, 0, "Election Revision", HFILL }}, + + { &hf_election_os, + { "Election OS", "browser.election.os", FT_UINT8, BASE_HEX, + NULL, 0, "Election OS", HFILL }}, + + { &hf_election_os_wfw, + { "WfW", "browser.election.os.wfw", FT_BOOLEAN, 8, + TFS(&tfs_os_wfw), 1<<OS_WFW, "Is this a WfW host?", HFILL }}, + + { &hf_election_os_ntw, + { "NT Workstation", "browser.election.os.ntw", FT_BOOLEAN, 8, + TFS(&tfs_os_ntw), 1<<OS_NTW, "Is this a NT Workstation?", HFILL }}, + + { &hf_election_os_nts, + { "NT Server", "browser.election.os.nts", FT_BOOLEAN, 8, + TFS(&tfs_os_nts), 1<<OS_NTS, "Is this a NT Server?", HFILL }}, + + { &hf_server_uptime, + { "Uptime", "browser.uptime", FT_UINT32, BASE_DEC, + NULL, 0, "Server uptime in ms", HFILL }}, + + { &hf_backup_count, + { "Backup List Requested Count", "browser.backup.count", FT_UINT8, BASE_DEC, + NULL, 0, "Backup list requested count", HFILL }}, + + { &hf_backup_token, + { "Backup Request Token", "browser.backup.token", FT_UINT32, BASE_DEC, + NULL, 0, "Backup requested/response token", HFILL }}, + + { &hf_backup_server, + { "Backup Server", "browser.backup.server", FT_STRING, BASE_NONE, + NULL, 0, "Backup Server Name", HFILL }}, + + { &hf_browser_to_promote, + { "Browser to Promote", "browser.browser_to_promote", FT_STRINGZ, BASE_NONE, + NULL, 0, "Browser to Promote", HFILL }}, + + }; + + static gint *ett[] = { + &ett_browse, + &ett_browse_flags, + &ett_browse_election_criteria, + &ett_browse_election_os, + &ett_browse_election_desire, + &ett_browse_reset_cmd_flags, + }; + + proto_smb_browse = proto_register_protocol("Microsoft Windows Browser Protocol", + "BROWSER", "browser"); + + proto_register_field_array(proto_smb_browse, hf, array_length(hf)); + proto_register_subtree_array(ett, array_length(ett)); + + register_dissector("mailslot_browse", dissect_mailslot_browse, + proto_smb_browse); + register_dissector("mailslot_lanman", dissect_mailslot_lanman, + proto_smb_browse); +} |