diff options
author | Gilbert Ramirez <gram@alumni.rice.edu> | 2004-07-18 18:06:47 +0000 |
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committer | Gilbert Ramirez <gram@alumni.rice.edu> | 2004-07-18 18:06:47 +0000 |
commit | 669db206cb1f270046ad400fff7655e20c63e723 (patch) | |
tree | 4eff24a2e16c8963e497e1fc575f35e6af59bd26 /epan/dissectors/packet-ddtp.c | |
parent | ae46c27a38700af669ef907491081f09df6f6b2c (diff) |
Move dissectors to epan/dissectors directory.
Also move ncp222.py, x11-fields, process-x11-fields.pl,
make-reg-dotc, and make-reg-dotc.py.
Adjust #include lines in files that include packet-*.h
files.
svn path=/trunk/; revision=11410
Diffstat (limited to 'epan/dissectors/packet-ddtp.c')
-rw-r--r-- | epan/dissectors/packet-ddtp.c | 220 |
1 files changed, 220 insertions, 0 deletions
diff --git a/epan/dissectors/packet-ddtp.c b/epan/dissectors/packet-ddtp.c new file mode 100644 index 0000000000..b5d1c0ddb1 --- /dev/null +++ b/epan/dissectors/packet-ddtp.c @@ -0,0 +1,220 @@ +/* packet-ddtp.c + * Routines for DDTP (Dynamic DNS Tools Protocol) packet disassembly + * see http://ddt.sourceforge.net/ + * Olivier Abad <oabad@noos.fr> + * + * $Id$ + * + * Ethereal - Network traffic analyzer + * By Gerald Combs <gerald@ethereal.com> + * Copyright 2000 + * + * 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 <glib.h> +#include <epan/packet.h> +#include "packet-ddtp.h" + +static int proto_ddtp = -1; +static int hf_ddtp_version = -1; +static int hf_ddtp_encrypt = -1; +static int hf_ddtp_hostid = -1; +static int hf_ddtp_msgtype = -1; +static int hf_ddtp_opcode = -1; +static int hf_ddtp_ipaddr = -1; +static int hf_ddtp_status = -1; + +static int ett_ddtp = -1; + +#define UDP_PORT_DDTP 1052 + +/* + * XXX - is 0 an invalid value? If so, should we remove it from this + * list, so that putative DDNS packets with a version number of 0 are + * rejected? + */ +static const value_string vals_ddtp_version[] = { + { DDTP_VERSION_ERROR, "Protocol Error" }, + { DDTP_VERSION_4, "4" }, + { DDTP_VERSION_5, "5" }, + { 0, NULL} +}; + +static const value_string vals_ddtp_encrypt[] = { + { DDTP_ENCRYPT_ERROR, "Encryption Error" }, + { DDTP_ENCRYPT_PLAINTEXT, "Plain text" }, + { DDTP_ENCRYPT_BLOWFISH, "Blowfish" }, + { 0, NULL} +}; + +static const value_string vals_ddtp_msgtype[] = { + { DDTP_MESSAGE_ERROR, "Message Error" }, + { DDTP_UPDATE_QUERY, "Update Query" }, + { DDTP_UPDATE_REPLY, "Update Reply" }, + { DDTP_ALIVE_QUERY, "Alive Query" }, + { DDTP_ALIVE_REPLY, "Alive Reply" }, + { 0, NULL} +}; + +static const value_string vals_ddtp_opcode[] = { + { DDTP_MARK_ONLINE, "Mark online" }, + { DDTP_MARK_OFFLINE, "Mark offline" }, + { 0, NULL} +}; + +static const value_string vals_ddtp_status[] = { + { DDTP_UPDATE_SUCCEEDED, "Update succeeded" }, + { DDTP_UPDATE_FAILED, "Update failed" }, + { DDTP_INVALID_PASSWORD, "Invalid password" }, + { DDTP_INVALID_ACCOUNT, "Invalid account" }, + { DDTP_INVALID_OPCODE, "Invalid opcode" }, + { 0, NULL} +}; + +static int +dissect_ddtp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree) +{ + proto_tree *ddtp_tree = NULL; + proto_item *ti; + + /* + * If we don't recognize the version number, don't dissect this. + */ + if (tvb_bytes_exist(tvb, 0, 4)) { + if (match_strval(tvb_get_ntohl(tvb, 0), vals_ddtp_version) == NULL) + return 0; + } + + if (check_col(pinfo->cinfo, COL_PROTOCOL)) { + /* Indicate what kind of message this is. */ + col_set_str (pinfo->cinfo, COL_PROTOCOL, "DDTP"); + } + if (check_col(pinfo->cinfo, COL_INFO)) { + /* In case we throw an exception below. */ + col_clear (pinfo->cinfo, COL_INFO); + } + if (tree) { + ti = proto_tree_add_item(tree, proto_ddtp, tvb, 0, -1, FALSE); + ddtp_tree = proto_item_add_subtree(ti, ett_ddtp); + + proto_tree_add_item(ddtp_tree, hf_ddtp_version, tvb, 0, 4, FALSE); + proto_tree_add_item(ddtp_tree, hf_ddtp_encrypt, tvb, 4, 4, FALSE); + proto_tree_add_item(ddtp_tree, hf_ddtp_hostid, tvb, 8, 4, FALSE); + } + if (tvb_get_ntohl(tvb, 4) == DDTP_ENCRYPT_PLAINTEXT) { + if (tree) + proto_tree_add_item(ddtp_tree, hf_ddtp_msgtype, tvb, 12, 4, FALSE); + switch (tvb_get_ntohl(tvb, 12)) { + case DDTP_MESSAGE_ERROR : + if (check_col(pinfo->cinfo, COL_INFO)) + col_set_str (pinfo->cinfo, COL_INFO, "Message Error"); + break; + case DDTP_UPDATE_QUERY : + if (check_col(pinfo->cinfo, COL_INFO)) + col_set_str (pinfo->cinfo, COL_INFO, "Update Query"); + if (tree) { + proto_tree_add_item(ddtp_tree, hf_ddtp_opcode, tvb, 16, 4, + FALSE); + proto_tree_add_item(ddtp_tree, hf_ddtp_ipaddr, tvb, 20, 4, + FALSE); + } + break; + case DDTP_UPDATE_REPLY : + if (check_col(pinfo->cinfo, COL_INFO)) + col_set_str (pinfo->cinfo, COL_INFO, "Update Reply"); + if (tree) { + proto_tree_add_item(ddtp_tree, hf_ddtp_status, tvb, 16, 4, + FALSE); + } + break; + case DDTP_ALIVE_QUERY : + if (check_col(pinfo->cinfo, COL_INFO)) + col_set_str (pinfo->cinfo, COL_INFO, "Alive Query"); + if (tree) { + proto_tree_add_text(ddtp_tree, tvb, 16, 4, "Dummy : %u", + tvb_get_ntohl(tvb, 16)); + } + break; + case DDTP_ALIVE_REPLY : + if (check_col(pinfo->cinfo, COL_INFO)) + col_set_str (pinfo->cinfo, COL_INFO, "Alive Reply"); + if (tree) { + proto_tree_add_text(ddtp_tree, tvb, 16, 4, "Dummy : %u", + tvb_get_ntohl(tvb, 16)); + } + break; + default : + if (check_col(pinfo->cinfo, COL_INFO)) + col_set_str (pinfo->cinfo, COL_INFO, "Unknown type"); + if (tree) { + proto_tree_add_text(ddtp_tree, tvb, 12, 4, "Unknown type : %u", + tvb_get_ntohl(tvb, 12)); + } + } + } else { + if (check_col(pinfo->cinfo, COL_INFO)) + col_set_str (pinfo->cinfo, COL_INFO, "Encrypted payload"); + } + return tvb_length(tvb); +} + +void +proto_register_ddtp(void) +{ + static hf_register_info hf_ddtp[] = { + { &hf_ddtp_version, + { "Version", "ddtp.version", FT_UINT32, BASE_DEC, VALS(vals_ddtp_version), 0x0, + "Version", HFILL }}, + { &hf_ddtp_encrypt, + { "Encryption", "ddtp.encrypt", FT_UINT32, BASE_DEC, VALS(vals_ddtp_encrypt), 0x0, + "Encryption type", HFILL }}, + { &hf_ddtp_hostid, + { "Hostid", "ddtp.hostid", FT_UINT32, BASE_DEC, NULL, 0x0, + "Host ID", HFILL }}, + { &hf_ddtp_msgtype, + { "Message type", "ddtp.msgtype", FT_UINT32, BASE_DEC, VALS(vals_ddtp_msgtype), 0x0, + "Message Type", HFILL }}, + { &hf_ddtp_opcode, + { "Opcode", "ddtp.opcode", FT_UINT32, BASE_DEC, VALS(vals_ddtp_opcode), 0x0, + "Update query opcode", HFILL }}, + { &hf_ddtp_ipaddr, + { "IP address", "ddtp.ipaddr", FT_IPv4, BASE_NONE, NULL, 0x0, + "IP address", HFILL }}, + { &hf_ddtp_status, + { "Status", "ddtp.status", FT_UINT32, BASE_DEC, VALS(vals_ddtp_status), 0x0, + "Update reply status", HFILL }} + }; + + static gint *ett[] = { &ett_ddtp }; + + proto_ddtp = proto_register_protocol("Dynamic DNS Tools Protocol", + "DDTP", "ddtp"); + proto_register_field_array(proto_ddtp, hf_ddtp, array_length(hf_ddtp)); + proto_register_subtree_array(ett, array_length(ett)); +} + +void +proto_reg_handoff_ddtp(void) +{ + dissector_handle_t ddtp_handle; + + ddtp_handle = new_create_dissector_handle(dissect_ddtp, proto_ddtp); + dissector_add("udp.port", UDP_PORT_DDTP, ddtp_handle); +} |