diff options
author | Jaap Keuter <jaap.keuter@xs4all.nl> | 2009-02-22 11:10:29 +0000 |
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committer | Jaap Keuter <jaap.keuter@xs4all.nl> | 2009-02-22 11:10:29 +0000 |
commit | 80863f9568f08e4b0406c7fd9ff429193facb84a (patch) | |
tree | 0bc6e42fa73def6fa13b0e34893d632027d7d504 /epan/dissectors/packet-enttec.c | |
parent | 9fb248f1c0c2a6b6092f1902087787e2f1c8b298 (diff) |
Incorporate plugin dissector into build in collection.
svn path=/trunk/; revision=27503
Diffstat (limited to 'epan/dissectors/packet-enttec.c')
-rw-r--r-- | epan/dissectors/packet-enttec.c | 564 |
1 files changed, 564 insertions, 0 deletions
diff --git a/epan/dissectors/packet-enttec.c b/epan/dissectors/packet-enttec.c new file mode 100644 index 0000000000..7c5e277fdb --- /dev/null +++ b/epan/dissectors/packet-enttec.c @@ -0,0 +1,564 @@ +/* packet-enttec.c + * Routines for ENTTEC packet disassembly + * + * $Id$ + * + * Copyright (c) 2003,2004 by Erwin Rol <erwin@erwinrol.com> + * + * Wireshark - Network traffic analyzer + * By Gerald Combs <gerald@wireshark.org> + * Copyright 1999 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. + */ + +/* Include files */ + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include <stdio.h> +#include <stdlib.h> +#include <ctype.h> +#include <time.h> +#include <string.h> +#include <epan/packet.h> +#include <epan/addr_resolv.h> +#include <epan/prefs.h> +#include <epan/strutil.h> + +/* + * See + * + * http://www.enttec.com/docs/enttec_protocol.pdf + */ + +/* Define UDP/TCP ports for ENTTEC */ + +#define UDP_PORT_ENTTEC 0x0D05 +#define TCP_PORT_ENTTEC 0x0D05 + + +#define ENTTEC_HEAD_ESPR 0x45535052 +#define ENTTEC_HEAD_ESPP 0x45535050 +#define ENTTEC_HEAD_ESAP 0x45534150 +#define ENTTEC_HEAD_ESDD 0x45534444 +#define ENTTEC_HEAD_ESNC 0x45534E43 +#define ENTTEC_HEAD_ESZZ 0x45535A5A + +static const value_string enttec_head_vals[] = { + { ENTTEC_HEAD_ESPR, "Poll Reply" }, + { ENTTEC_HEAD_ESPP, "Poll" }, + { ENTTEC_HEAD_ESAP, "Ack/nAck" }, + { ENTTEC_HEAD_ESDD, "DMX Data" }, + { ENTTEC_HEAD_ESNC, "Config" }, + { ENTTEC_HEAD_ESZZ, "Reset" }, + { 0, NULL } +}; + +#define ENTTEC_DATA_TYPE_DMX 0x01 +#define ENTTEC_DATA_TYPE_CHAN_VAL 0x02 +#define ENTTEC_DATA_TYPE_RLE 0x04 + +static const value_string enttec_data_type_vals[] = { + { ENTTEC_DATA_TYPE_DMX, "Uncompressed DMX" }, + { ENTTEC_DATA_TYPE_CHAN_VAL, "Channel+Value" }, + { ENTTEC_DATA_TYPE_RLE, "RLE Compressed DMX" }, + { 0, NULL } +}; + +void proto_reg_handoff_enttec(void); + +/* Define the enttec proto */ +static int proto_enttec = -1; + +/* general */ +static int hf_enttec_head = -1; + +/* poll */ +static int hf_enttec_poll_type = -1; + +/* poll reply */ +static int hf_enttec_poll_reply_mac = -1; +static int hf_enttec_poll_reply_node_type = -1; +static int hf_enttec_poll_reply_version = -1; +static int hf_enttec_poll_reply_switch = -1; +static int hf_enttec_poll_reply_name = -1; +static int hf_enttec_poll_reply_option = -1; +static int hf_enttec_poll_reply_tos = -1; +static int hf_enttec_poll_reply_ttl = -1; + +/* dmx data */ +static int hf_enttec_dmx_data_universe = -1; +static int hf_enttec_dmx_data_start_code = -1; +static int hf_enttec_dmx_data_type = -1; +static int hf_enttec_dmx_data_size = -1; +static int hf_enttec_dmx_data_data = -1; +static int hf_enttec_dmx_data_data_filter = -1; +static int hf_enttec_dmx_data_dmx_data = -1; + +/* Define the tree for enttec */ +static int ett_enttec = -1; + +/* + * Here are the global variables associated with the preferences + * for enttec + */ + +static guint global_udp_port_enttec = UDP_PORT_ENTTEC; +static guint global_tcp_port_enttec = TCP_PORT_ENTTEC; + +static gint global_disp_chan_val_type = 0; +static gint global_disp_col_count = 16; +static gint global_disp_chan_nr_type = 0; + +static gint +dissect_enttec_poll_reply(tvbuff_t *tvb, guint offset, proto_tree *tree) +{ + proto_tree_add_item(tree, hf_enttec_poll_reply_mac, tvb, + offset, 6, FALSE); + offset += 6; + + proto_tree_add_item(tree, hf_enttec_poll_reply_node_type, tvb, + offset, 2, FALSE); + offset += 2; + + proto_tree_add_item(tree, hf_enttec_poll_reply_version, tvb, + offset, 1, FALSE); + offset += 1; + + proto_tree_add_item(tree, hf_enttec_poll_reply_switch, tvb, + offset, 1, FALSE); + offset += 1; + + proto_tree_add_item(tree, hf_enttec_poll_reply_name, tvb, + offset, 10, FALSE); + offset += 10; + + proto_tree_add_item(tree, hf_enttec_poll_reply_option, tvb, + offset, 1, FALSE); + offset += 1; + + proto_tree_add_item(tree, hf_enttec_poll_reply_tos, tvb, + offset, 1, FALSE); + offset += 1; + + proto_tree_add_item(tree, hf_enttec_poll_reply_ttl, tvb, + offset, 1, FALSE); + offset += 1; + + /* data */ + + return offset; +} + +static gint +dissect_enttec_poll(tvbuff_t *tvb, guint offset, proto_tree *tree) +{ + proto_tree_add_item(tree, hf_enttec_poll_type, tvb, + offset, 1, FALSE); + offset += 1; + + return offset; +} + +static gint +dissect_enttec_ack(tvbuff_t *tvb _U_, guint offset, proto_tree *tree _U_) +{ + + return offset; +} + +static gint +dissect_enttec_dmx_data(tvbuff_t *tvb, guint offset, proto_tree *tree) +{ + const char* chan_format[] = { + "%2u ", + "%02x ", + "%3u " + }; + const char* string_format[] = { + "%03x: %s", + "%3u: %s" + }; + + static guint8 dmx_data[512]; + static guint16 dmx_data_offset[513]; /* 1 extra for last offset */ + static char string[255]; + + proto_tree *hi,*si; + proto_item *item; + guint16 length,r,c,row_count; + guint8 v,type,count; + guint16 ci,ui,i,start_offset,end_offset; + char* ptr; + + proto_tree_add_item(tree, hf_enttec_dmx_data_universe, tvb, + offset, 1, FALSE); + offset += 1; + + proto_tree_add_item(tree, hf_enttec_dmx_data_start_code, tvb, + offset, 1, FALSE); + offset += 1; + + type = tvb_get_guint8(tvb, offset); + proto_tree_add_item(tree, hf_enttec_dmx_data_type, tvb, + offset, 1, FALSE); + offset += 1; + + length = tvb_get_ntohs(tvb, offset); + proto_tree_add_item(tree, hf_enttec_dmx_data_size, tvb, + offset, 2, FALSE); + offset += 2; + + if (length > 512) + length = 512; + + if (type == ENTTEC_DATA_TYPE_RLE) { + /* uncompres the DMX data */ + ui = 0; + ci = 0; + while (ci < length) { + v = tvb_get_guint8(tvb, offset+ci); + if (v == 0xFE) { + ci++; + count = tvb_get_guint8(tvb, offset+ci); + ci++; + v = tvb_get_guint8(tvb, offset+ci); + ci++; + for (i=0;i < count;i++) { + dmx_data[ui] = v; + dmx_data_offset[ui] = ci-3; + ui++; + } + } else if (v == 0xFD) { + ci++; + v = tvb_get_guint8(tvb, offset+ci); + dmx_data[ui] = v; + dmx_data_offset[ui] = ci; + ci++; + ui++; + } else { + dmx_data[ui] = v; + dmx_data_offset[ui] = ci; + ui++; + ci++; + } + } + dmx_data_offset[ui] = ci; + } else { + for (ui=0; ui < length;ui++) { + dmx_data[ui] = tvb_get_guint8(tvb, offset+ui); + dmx_data_offset[ui] = ui; + } + dmx_data_offset[ui] = ui; + } + + + if (type == ENTTEC_DATA_TYPE_DMX || type == ENTTEC_DATA_TYPE_RLE) { + hi = proto_tree_add_item(tree, + hf_enttec_dmx_data_data, + tvb, + offset, + length, + FALSE); + + si = proto_item_add_subtree(hi, ett_enttec); + + row_count = (ui/global_disp_col_count) + ((ui%global_disp_col_count) == 0 ? 0 : 1); + ptr = string; + for (r=0; r < row_count;r++) { + for (c=0;(c < global_disp_col_count) && (((r*global_disp_col_count)+c) < ui);c++) { + if ((c % (global_disp_col_count/2)) == 0) { + ptr += g_snprintf(ptr, sizeof string - strlen(string), " "); + } + v = dmx_data[(r*global_disp_col_count)+c]; + if (global_disp_chan_val_type == 0) { + v = (v * 100) / 255; + if (v == 100) { + ptr += g_snprintf(ptr, sizeof string - strlen(string), "FL "); + } else { + ptr += g_snprintf(ptr, sizeof string - strlen(string), chan_format[global_disp_chan_val_type], v); + } + } else { + ptr += g_snprintf(ptr, sizeof string - strlen(string), chan_format[global_disp_chan_val_type], v); + } + } + + start_offset = dmx_data_offset[(r*global_disp_col_count)]; + end_offset = dmx_data_offset[(r*global_disp_col_count)+c]; + + proto_tree_add_none_format(si,hf_enttec_dmx_data_dmx_data, tvb, + offset+start_offset, + end_offset-start_offset, + string_format[global_disp_chan_nr_type], (r*global_disp_col_count)+1, string); + ptr = string; + } + + item = proto_tree_add_item(si, hf_enttec_dmx_data_data_filter, tvb, + offset, length, FALSE ); + PROTO_ITEM_SET_HIDDEN(item); + + offset += length; + } else if (type == ENTTEC_DATA_TYPE_CHAN_VAL) { + proto_tree_add_item(tree, hf_enttec_dmx_data_data_filter, tvb, + offset, length, FALSE); + offset += length; + } else { + proto_tree_add_item(tree, hf_enttec_dmx_data_data_filter, tvb, + offset, length, FALSE); + offset += length; + } + + + + return offset; +} + +static gint +dissect_enttec_config(tvbuff_t *tvb _U_, guint offset, proto_tree *tree _U_) +{ + + return offset; +} + +static gint +dissect_enttec_reset(tvbuff_t *tvb _U_, guint offset, proto_tree *tree _U_) +{ + + return offset; +} + +static void +dissect_enttec(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree) +{ + gint offset = 0; + guint32 head = 0; + proto_tree *ti,*enttec_tree=NULL; + + /* Set the protocol column */ + if (check_col(pinfo->cinfo,COL_PROTOCOL)) { + col_set_str(pinfo->cinfo,COL_PROTOCOL,"ENTTEC"); + } + + head = tvb_get_ntohl(tvb, offset); + + /* Clear out stuff in the info column */ + if (check_col(pinfo->cinfo,COL_INFO)) { + col_clear(pinfo->cinfo,COL_INFO); + col_add_fstr(pinfo->cinfo, COL_INFO, "%s", + val_to_str(head, enttec_head_vals, "Unknown (0x%08x)")); + } + + if (tree) { + ti = proto_tree_add_item(tree, proto_enttec, tvb, offset, -1, FALSE); + enttec_tree = proto_item_add_subtree(ti, ett_enttec); + } + + if (enttec_tree) { + proto_tree_add_item(enttec_tree, hf_enttec_head, tvb, + offset, 4, FALSE ); + offset += 4; + + switch (head) { + case ENTTEC_HEAD_ESPR: + offset = dissect_enttec_poll_reply( tvb, offset, enttec_tree); + break; + + case ENTTEC_HEAD_ESPP: + offset = dissect_enttec_poll( tvb, offset, enttec_tree); + break; + + case ENTTEC_HEAD_ESAP: + offset = dissect_enttec_ack( tvb, offset, enttec_tree); + break; + + case ENTTEC_HEAD_ESDD: + offset = dissect_enttec_dmx_data( tvb, offset, enttec_tree); + break; + + case ENTTEC_HEAD_ESNC: + offset = dissect_enttec_config( tvb, offset, enttec_tree); + break; + + case ENTTEC_HEAD_ESZZ: + offset = dissect_enttec_reset( tvb, offset, enttec_tree); + break; + } + + } +} + +void +proto_register_enttec(void) +{ + static hf_register_info hf[] = { + /* General */ + { &hf_enttec_head, + { "Head", "enttec.head", + FT_UINT32, BASE_HEX, VALS(enttec_head_vals), 0x0, + "Head", HFILL } }, + { &hf_enttec_poll_reply_mac, + { "MAC", "enttec.poll_reply.mac", + FT_ETHER, BASE_HEX, NULL, 0x0, + "MAC", HFILL } }, + { &hf_enttec_poll_reply_node_type, + { "Node Type", "enttec.poll_reply.node_type", + FT_UINT16, BASE_HEX, NULL, 0x0, + "Node Type", HFILL } }, + { &hf_enttec_poll_reply_version, + { "Version", "enttec.poll_reply.version", + FT_UINT8, BASE_DEC, NULL, 0x0, + "Version", HFILL } }, + { &hf_enttec_poll_reply_switch, + { "Switch settings", "enttec.poll_reply.switch_settings", + FT_UINT8, BASE_HEX, NULL, 0x0, + "Switch settings", HFILL } }, + { &hf_enttec_poll_reply_name, + { "Name", "enttec.poll_reply.name", + FT_STRING, BASE_DEC, NULL, 0x0, + "Name", HFILL } }, + { &hf_enttec_poll_reply_option, + { "Option Field", "enttec.poll_reply.option_field", + FT_UINT8, BASE_HEX, NULL, 0x0, + "Option Field", HFILL } }, + { &hf_enttec_poll_reply_tos, + { "TOS", "enttec.poll_reply.tos", + FT_UINT8, BASE_HEX, NULL, 0x0, + "TOS", HFILL } }, + { &hf_enttec_poll_reply_ttl, + { "TTL", "enttec.poll_reply.ttl", + FT_UINT8, BASE_DEC, NULL, 0x0, + "TTL", HFILL } }, + { &hf_enttec_dmx_data_universe, + { "Universe", "enttec.dmx_data.universe", + FT_UINT8, BASE_DEC, NULL, 0x0, + "Universe", HFILL } }, + { &hf_enttec_dmx_data_start_code, + { "Start Code", "enttec.dmx_data.start_code", + FT_UINT8, BASE_DEC, NULL, 0x0, + "Start Code", HFILL } }, + { &hf_enttec_dmx_data_type, + { "Data Type", "enttec.dmx_data.type", + FT_UINT8, BASE_HEX, VALS(enttec_data_type_vals), 0x0, + "Data Type", HFILL } }, + { &hf_enttec_dmx_data_size, + { "Data Size", "enttec.dmx_data.size", + FT_UINT16, BASE_DEC, NULL, 0x0, + "Data Size", HFILL } }, + { &hf_enttec_dmx_data_data, + { "DMX Data", "enttec.dmx_data.data", + FT_NONE, BASE_DEC, NULL, 0x0, + "DMX Data", HFILL } }, + { &hf_enttec_dmx_data_data_filter, + { "DMX Data", "enttec.dmx_data.data_filter", + FT_BYTES, BASE_DEC, NULL, 0x0, + "DMX Data", HFILL } }, + { &hf_enttec_dmx_data_dmx_data, + { "DMX Data", "enttec.dmx_data.dmx_data", + FT_NONE, BASE_DEC, NULL, 0x0, + "DMX Data", HFILL } }, + { &hf_enttec_poll_type, + { "Reply Type", "enttec.poll.reply_type", + FT_UINT8, BASE_DEC, NULL, 0x0, + "Reply Type", HFILL } } + }; + + static gint *ett[] = { + &ett_enttec, + }; + + module_t *enttec_module; + + static enum_val_t disp_chan_val_types[] = { + { "pro", "Percent", 0 }, + { "hex", "Hexadecimal", 1 }, + { "dec", "Decimal", 2 }, + { NULL, NULL, 0 } + }; + + static enum_val_t disp_chan_nr_types[] = { + { "hex", "Hexadecimal", 0 }, + { "dec", "Decimal", 1 }, + { NULL, NULL, 0 } + }; + + static enum_val_t col_count[] = { + { "6", "6", 6 }, + { "10", "10", 10 }, + { "12", "12", 12 }, + { "16", "16", 16 }, + { "24", "24", 24 }, + { NULL, NULL, 0 } + }; + + proto_enttec = proto_register_protocol("ENTTEC", "ENTTEC","enttec"); + proto_register_field_array(proto_enttec,hf,array_length(hf)); + proto_register_subtree_array(ett,array_length(ett)); + + enttec_module = prefs_register_protocol(proto_enttec, + proto_reg_handoff_enttec); + prefs_register_uint_preference(enttec_module, "udp_port", + "ENTTEC UDP Port", + "The UDP port on which ENTTEC packets will be sent", + 10,&global_udp_port_enttec); + + prefs_register_uint_preference(enttec_module, "tcp_port", + "ENTTEC TCP Port", + "The TCP port on which ENTTEC packets will be sent", + 10,&global_tcp_port_enttec); + + prefs_register_enum_preference(enttec_module, "dmx_disp_chan_val_type", + "DMX Display channel value type", + "The way DMX values are displayed", + &global_disp_chan_val_type, + disp_chan_val_types, FALSE); + + prefs_register_enum_preference(enttec_module, "dmx_disp_chan_nr_type", + "DMX Display channel nr. type", + "The way DMX channel numbers are displayed", + &global_disp_chan_nr_type, + disp_chan_nr_types, FALSE); + + prefs_register_enum_preference(enttec_module, "dmx_disp_col_count", + "DMX Display Column Count", + "The number of columns for the DMX display", + &global_disp_col_count, + col_count, FALSE); +} + +/* The registration hand-off routing */ +void +proto_reg_handoff_enttec(void) { + static gboolean enttec_initialized = FALSE; + static dissector_handle_t enttec_handle; + static guint udp_port_enttec; + static guint tcp_port_enttec; + + if(!enttec_initialized) { + enttec_handle = create_dissector_handle(dissect_enttec,proto_enttec); + enttec_initialized = TRUE; + } else { + dissector_delete("udp.port",udp_port_enttec,enttec_handle); + dissector_delete("tcp.port",tcp_port_enttec,enttec_handle); + } + + udp_port_enttec = global_udp_port_enttec; + tcp_port_enttec = global_tcp_port_enttec; + + dissector_add("udp.port",global_udp_port_enttec,enttec_handle); + dissector_add("tcp.port",global_tcp_port_enttec,enttec_handle); +} |