From 5857560a7f18ea557228e3e796418164d3058f67 Mon Sep 17 00:00:00 2001 From: Ronnie Sahlberg Date: Tue, 16 May 2006 08:31:34 +0000 Subject: add dissection of the bluetooth btl2cap layer svn path=/trunk/; revision=18170 --- epan/dissectors/Makefile.common | 2 + epan/dissectors/packet-btl2cap.c | 842 +++++++++++++++++++++++++++++++++++++++ epan/dissectors/packet-btl2cap.h | 31 ++ 3 files changed, 875 insertions(+) create mode 100644 epan/dissectors/packet-btl2cap.c create mode 100644 epan/dissectors/packet-btl2cap.h diff --git a/epan/dissectors/Makefile.common b/epan/dissectors/Makefile.common index 5ca6bf5663..ac8820ad18 100644 --- a/epan/dissectors/Makefile.common +++ b/epan/dissectors/Makefile.common @@ -134,6 +134,7 @@ DISSECTOR_SRC = \ packet-bthci_acl.c \ packet-bthci_cmd.c \ packet-bthci_evt.c \ + packet-btl2cap.c \ packet-bvlc.c \ packet-camel.c \ packet-cast.c \ @@ -692,6 +693,7 @@ DISSECTOR_INCLUDES = \ packet-bgp.h \ packet-bootparams.h \ packet-bssap.h \ + packet-btl2cap.h \ packet-camel.h \ packet-chdlc.h \ packet-cdt.h \ diff --git a/epan/dissectors/packet-btl2cap.c b/epan/dissectors/packet-btl2cap.c new file mode 100644 index 0000000000..245747de55 --- /dev/null +++ b/epan/dissectors/packet-btl2cap.c @@ -0,0 +1,842 @@ +/* packet-btl2cap.c + * Routines for the Bluetooth L2CAP dissection + * Copyright 2002, Christoph Scholz + * + * $Id: packet-btl2cap.c,v 1.6 2003/03/26 15:53:15 kds Exp $ + * + * Ethereal - Network traffic analyzer + * By Gerald Combs + * 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 + +#include +#include +#include +#include "packet-btl2cap.h" + +/* Initialize the protocol and registered fields */ +static int proto_btl2cap = -1; +static int hf_btl2cap_length = -1; +static int hf_btl2cap_cid = -1; +static int hf_btl2cap_payload = -1; +static int hf_btl2cap_command = -1; +static int hf_btl2cap_cmd_code = -1; +static int hf_btl2cap_cmd_ident = -1; +static int hf_btl2cap_cmd_length = -1; +static int hf_btl2cap_cmd_data = -1; +static int hf_btl2cap_psm = -1; +static int hf_btl2cap_scid = -1; +static int hf_btl2cap_dcid = -1; +static int hf_btl2cap_result = -1; +static int hf_btl2cap_status = -1; +static int hf_btl2cap_rej_reason = -1; +static int hf_btl2cap_sig_mtu = -1; +static int hf_btl2cap_info_mtu = -1; +static int hf_btl2cap_info_type = -1; +static int hf_btl2cap_info_result = -1; +static int hf_btl2cap_continuation_flag = -1; +static int hf_btl2cap_configuration_result = -1; +static int hf_btl2cap_option = -1; +static int hf_btl2cap_option_type = -1; +static int hf_btl2cap_option_length = -1; +static int hf_btl2cap_option_mtu = -1; +static int hf_btl2cap_option_flushTO = -1; +static int hf_btl2cap_option_flags = -1; +static int hf_btl2cap_option_service_type = -1; +static int hf_btl2cap_option_tokenrate = -1; +static int hf_btl2cap_option_tokenbucketsize = -1; +static int hf_btl2cap_option_peakbandwidth = -1; +static int hf_btl2cap_option_latency = -1; +static int hf_btl2cap_option_delayvariation = -1; + +/* Initialize the subtree pointers */ +static gint ett_btl2cap = -1; +static gint ett_btl2cap_cmd = -1; +static gint ett_btl2cap_option = -1; + + +/* Initialize dissector table */ +dissector_table_t l2cap_psm_dissector_table; + +/* This table maps cid values to psm values. + * The same table is used both for SCID and DCID. + * For received CIDs we mask the cid with 0x8000 in this table + */ +static se_tree_t *cid_to_psm_table = NULL; +typedef struct _psm_data_t { + guint16 psm; +} psm_data_t; + +static const value_string command_code_vals[] = { + { 0x01, "Command Reject" }, + { 0x02, "Connection Request" }, + { 0x03, "Connection Response" }, + { 0x04, "Configure Request" }, + { 0x05, "Configure Response" }, + { 0x06, "Disconnect Request" }, + { 0x07, "Disconnect Response" }, + { 0x08, "Echo Request" }, + { 0x09, "Echo Response" }, + { 0x0A, "Information Request" }, + { 0x0B, "Information Response" }, + { 0, NULL } +}; + + +static const value_string psm_vals[] = { + { 0x0001, "SDP" }, + { 0x0003, "RFCOMM" }, + { 0x0005, "TCS-BIN" }, + { 0x0007, "TCS-BIN-CORDLESS" }, + { 0x000F, "BNEP" }, + { 0x0011, "HID_CONTROL" }, + { 0x0013, "HID_INTERRUPT" }, + { 0x0015, "UPnP" }, + { 0x0017, "AVCTP" }, + { 0x0019, "AVDTP" }, + { 0x001D, "UDI_C-Plane" }, + { 0, NULL } +}; + + +static const value_string result_vals[] = { + { 0x0000, "Connection successful" }, + { 0x0001, "Connection pending" }, + { 0x0002, "Connection Refused - PSM not supported" }, + { 0x0003, "Connection refused - security block" }, + { 0x0004, "Connection refused - no resources available" }, + { 0, NULL } +}; + +static const value_string configuration_result_vals[] = { + { 0x0000, "Success"}, + { 0x0001, "Failure - unacceptable parameters" }, + { 0x0002, "Failure - reject (no reason provided)" }, + { 0x0003, "Failure - unknown options" }, + { 0, NULL } +}; + +static const value_string status_vals[] = { + { 0x0000, "No further information available" }, + { 0x0001, "Authentication panding" }, + { 0x0002, "Authorization pending" }, + { 0, NULL } +}; + +static const value_string reason_vals[] = { + { 0x0000, "Command not understood" }, + { 0x0001, "Signaling MTU exceeded" }, + { 0x0002, "Invalid CID in request" }, + { 0, NULL } +}; + +static const value_string info_type_vals[] = { + { 0x0001, "Connectionless MTU" }, + { 0, NULL } +}; + +static const value_string info_result_vals[] = { + { 0x0000, "Success" }, + { 0x0001, "Not Supported" }, + { 0, NULL } +}; + +static const value_string option_servicetype_vals[] = { + { 0x00, "No traffic" }, + { 0x01, "Best effort (Default)" }, + { 0x02, "Guaranteed" }, + { 0, NULL } +}; + +static const value_string option_type_vals[] = { + { 0x01, "Maximum Transmission Unit" }, + { 0x02, "Flush Timeout" }, + { 0x03, "Quality of Service" }, + { 0, NULL } +}; + + +static int +dissect_comrej(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree) +{ + guint16 reason; + + reason = tvb_get_letohs(tvb, offset); + proto_tree_add_item(tree, hf_btl2cap_rej_reason, tvb, offset, 2, TRUE); + offset+=2; + + switch(reason){ + case 0x0000: /* Command not understood */ + break; + + case 0x0001: /* Signaling MTU exceeded */ + proto_tree_add_item(tree, hf_btl2cap_sig_mtu, tvb, offset, 2, TRUE); + offset+=2; + break; + + case 0x0002: /* Invalid CID in requets */ + proto_tree_add_item(tree, hf_btl2cap_scid, tvb, offset, 2, TRUE); + offset+=2; + + proto_tree_add_item(tree, hf_btl2cap_dcid, tvb, offset, 2, TRUE); + offset+=2; + + break; + + default: + break; + } + + return offset; +} + +static int +dissect_connrequest(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree) +{ + guint16 scid, psm; + psm_data_t *psm_data; + + psm=tvb_get_letohs(tvb, offset); + proto_tree_add_item(tree, hf_btl2cap_psm, tvb, offset, 2, TRUE); + offset+=2; + + scid=tvb_get_letohs(tvb, offset); + proto_tree_add_item(tree, hf_btl2cap_scid, tvb, offset, 2, TRUE); + offset+=2; + + if (pinfo->fd->flags.visited == 0) { + psm_data=se_alloc(sizeof(psm_data_t)); + psm_data->psm=psm; + se_tree_insert32(cid_to_psm_table, scid|((pinfo->p2p_dir == P2P_DIR_RECV)?0x8000:0x0000), psm_data); + + } + return offset; +} + + +static int +dissect_options(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree, int length) +{ + proto_item *ti_option=NULL; + proto_tree *ti_option_subtree=NULL; + guint8 option_type, option_length; + + if(length>0){ + option_type = tvb_get_guint8(tvb, offset); + option_length = tvb_get_guint8(tvb, offset+1); + + ti_option = proto_tree_add_none_format(tree, + hf_btl2cap_option, tvb, + offset, option_length + 2, + "Option: "); + ti_option_subtree = proto_item_add_subtree(ti_option, ett_btl2cap_option); + proto_tree_add_item(ti_option_subtree, hf_btl2cap_option_type, tvb, offset, 1, TRUE); + proto_tree_add_item(ti_option_subtree, hf_btl2cap_option_length, tvb, offset+1, 1, TRUE); + offset+=2; + + if(option_length>0){ + switch(option_type){ + case 0x01: /* MTU */ + proto_tree_add_item(ti_option_subtree, hf_btl2cap_option_mtu, tvb, offset, 2, TRUE); + offset+=2; + + proto_item_append_text(ti_option, "MTU"); + break; + + case 0x02: /* Flush timeout */ + proto_tree_add_item(ti_option_subtree, hf_btl2cap_option_flushTO, tvb, offset, 2, TRUE); + offset+=2; + + proto_item_append_text(ti_option, "Flush Timeout"); + break; + + case 0x03: /* QOS */ + proto_tree_add_item(ti_option_subtree, hf_btl2cap_option_flags, tvb, offset, 1, TRUE); + offset++; + + proto_tree_add_item(ti_option_subtree, hf_btl2cap_option_service_type, tvb, offset, 1, TRUE); + offset++; + + proto_tree_add_item(ti_option_subtree, hf_btl2cap_option_tokenrate, tvb, offset, 4, TRUE); + offset+=4; + + proto_tree_add_item(ti_option_subtree, hf_btl2cap_option_tokenbucketsize, tvb, offset, 4, TRUE); + offset+=4; + + proto_tree_add_item(ti_option_subtree, hf_btl2cap_option_peakbandwidth, tvb, offset, 4, TRUE); + offset+=4; + + proto_tree_add_item(ti_option_subtree, hf_btl2cap_option_latency, tvb, offset, 4, TRUE); + offset+=4; + + proto_tree_add_item(ti_option_subtree, hf_btl2cap_option_delayvariation, tvb, offset, 4, TRUE); + offset+=4; + + proto_item_append_text(ti_option, "QOS"); + break; + + default: + proto_item_append_text(ti_option, "unknown"); + offset+=tvb_length_remaining(tvb, offset); + break; + } + } + offset+=dissect_options(tvb, offset, pinfo, tree, tvb_length_remaining(tvb, offset)); + } + return offset; +} + + + +static int +dissect_configrequest(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree) +{ + proto_tree_add_item(tree, hf_btl2cap_dcid, tvb, offset, 2, TRUE); + offset+=2; + + proto_tree_add_item(tree, hf_btl2cap_continuation_flag, tvb, offset, 2, TRUE); + offset+=2; + + if(tvb_length_remaining(tvb, offset)){ + offset=dissect_options(tvb, offset, pinfo, tree, tvb_length_remaining(tvb, offset)); + } + + return offset; +} + + +static int +dissect_inforequest(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree) +{ + proto_tree_add_item(tree, hf_btl2cap_info_type, tvb, offset, 2, TRUE); + offset+=2; + + return offset; +} + +static int +dissect_inforesponse(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree) +{ + guint16 info_type; + + info_type=tvb_get_ntohs(tvb, offset); + proto_tree_add_item(tree, hf_btl2cap_info_type, tvb, offset, 2, TRUE); + offset+=2; + + proto_tree_add_item(tree, hf_btl2cap_info_result, tvb, offset, 2, TRUE); + offset+=2; + + if(tvb_length_remaining(tvb, offset)) { + switch(info_type){ + case 0x0001: /* Connectionless MTU */ + proto_tree_add_item(tree, hf_btl2cap_info_mtu, tvb, offset, 2, TRUE); + offset+=2; + + break; + default: + proto_tree_add_item(tree, hf_btl2cap_cmd_data, tvb, offset, -1, TRUE); + offset+=tvb_length_remaining(tvb, offset); + + break; + } + } + + return offset; +} + +static int +dissect_configresponse(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree) +{ + proto_tree_add_item(tree, hf_btl2cap_scid, tvb, offset, 2, TRUE); + offset+=2; + + proto_tree_add_item(tree, hf_btl2cap_continuation_flag, tvb, offset, 2, TRUE); + offset+=2; + + proto_tree_add_item(tree, hf_btl2cap_configuration_result, tvb, offset, 2, TRUE); + offset+=2; + + if(tvb_length_remaining(tvb, offset)){ + offset=dissect_options(tvb, offset, pinfo, tree, tvb_length_remaining(tvb, offset)); + } + + return offset; +} + +static int +dissect_connresponse(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree) +{ + guint16 scid, dcid; + psm_data_t *psm_data; + + dcid = tvb_get_letohs(tvb, offset); + proto_tree_add_item(tree, hf_btl2cap_dcid, tvb, offset, 2, TRUE); + offset+=2; + + scid = tvb_get_letohs(tvb, offset); + proto_tree_add_item(tree, hf_btl2cap_scid, tvb, offset, 2, TRUE); + offset+=2; + + proto_tree_add_item(tree, hf_btl2cap_result, tvb, offset, 2, TRUE); + offset+=2; + + proto_tree_add_item(tree, hf_btl2cap_status, tvb, offset, 2, TRUE); + offset+=2; + + if (pinfo->fd->flags.visited == 0) { + if((psm_data=se_tree_lookup32(cid_to_psm_table, scid|((pinfo->p2p_dir==P2P_DIR_RECV)?0x0000:0x8000)))){ + se_tree_insert32(cid_to_psm_table, dcid|((pinfo->p2p_dir == P2P_DIR_RECV)?0x8000:0x0000), psm_data); + } + } + + return offset; +} + + +static int +dissect_disconnrequestresponse(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree) +{ + guint16 scid, dcid; + + dcid = tvb_get_letohs(tvb, offset); + proto_tree_add_item(tree, hf_btl2cap_dcid, tvb, offset, 2, TRUE); + offset+=2; + + scid = tvb_get_letohs(tvb, offset); + proto_tree_add_item(tree, hf_btl2cap_scid, tvb, offset, 2, TRUE); + offset+=2; + + return offset; +} + + + +/* Code to actually dissect the packets */ +static void dissect_btl2cap(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree) +{ + int offset=0; + proto_item *ti=NULL; + proto_tree *btl2cap_tree=NULL; + guint16 length, cid; + guint16 psm; + tvbuff_t *next_tvb; + psm_data_t *psm_data; + + if(check_col(pinfo->cinfo, COL_PROTOCOL)){ + col_set_str(pinfo->cinfo, COL_PROTOCOL, "L2CAP"); + } + if(check_col(pinfo->cinfo, COL_INFO)){ + col_clear(pinfo->cinfo, COL_INFO); + col_add_str(pinfo->cinfo, COL_INFO, pinfo->p2p_dir == P2P_DIR_SENT ? "Sent " : "Rcvd "); + } + + if(tree){ + ti=proto_tree_add_item(tree, proto_btl2cap, tvb, offset, -1, FALSE); + btl2cap_tree=proto_item_add_subtree(ti, ett_btl2cap); + } + + + length = tvb_get_letohs(tvb, offset); + proto_tree_add_item(btl2cap_tree, hf_btl2cap_length, tvb, offset, 2, TRUE); + offset+=2; + + cid = tvb_get_letohs(tvb, offset); + proto_tree_add_item(btl2cap_tree, hf_btl2cap_cid, tvb, offset, 2, TRUE); + offset+=2; + + + if(cid==0x0001){ /* This is a command packet*/ + while(offset<(length+4)) { + proto_tree *btl2cap_cmd_tree=NULL; + proto_item *ti_command=NULL; + guint8 cmd_code; + guint16 cmd_length; + + ti_command=proto_tree_add_none_format(btl2cap_tree, + hf_btl2cap_command, tvb, + offset, -1, + "Command: "); + btl2cap_cmd_tree=proto_item_add_subtree(ti_command, ett_btl2cap_cmd); + + cmd_code=tvb_get_guint8(tvb, offset); + proto_tree_add_item(btl2cap_cmd_tree, hf_btl2cap_cmd_code, tvb, offset, 1, TRUE); + offset++; + + proto_tree_add_item(btl2cap_cmd_tree, hf_btl2cap_cmd_ident, tvb, offset, 1, TRUE); + offset++; + + cmd_length=tvb_get_letohs(tvb, offset+2); + proto_tree_add_item(btl2cap_cmd_tree, hf_btl2cap_cmd_length, tvb, offset, 2, TRUE); + proto_item_set_len(ti_command, cmd_length+4); + offset+=2; + + switch(cmd_code) { + case 0x01: /* Command Reject */ + offset=dissect_comrej(tvb, offset, pinfo, btl2cap_cmd_tree); + proto_item_append_text(ti_command, "Command Reject"); + if ((check_col(pinfo->cinfo, COL_INFO))){ + col_append_str(pinfo->cinfo, COL_INFO, "Command Reject"); + } + break; + + case 0x02: /* Connection Request */ + offset=dissect_connrequest(tvb, offset, pinfo, btl2cap_cmd_tree); + proto_item_append_text(ti_command, "Connection Request"); + if ((check_col(pinfo->cinfo, COL_INFO))){ + col_append_str(pinfo->cinfo, COL_INFO, "Connection Request"); + } + break; + + case 0x03: /* Connection Response */ + offset=dissect_connresponse(tvb, offset, pinfo, btl2cap_cmd_tree); + proto_item_append_text(ti_command, "Connection Response"); + if ((check_col(pinfo->cinfo, COL_INFO))){ + col_append_str(pinfo->cinfo, COL_INFO, "Connection Response"); + } + break; + case 0x04: /* Configure Request */ + offset=dissect_configrequest(tvb, offset, pinfo, btl2cap_cmd_tree); + proto_item_append_text(ti_command, "Configure Request"); + if ((check_col(pinfo->cinfo, COL_INFO))){ + col_append_str(pinfo->cinfo, COL_INFO, "Configure Request"); + } + break; + + case 0x05: /* Configure Response */ + offset=dissect_configresponse(tvb, offset, pinfo, btl2cap_cmd_tree); + proto_item_append_text(ti_command, "Configure Response"); + if ((check_col(pinfo->cinfo, COL_INFO))){ + col_append_str(pinfo->cinfo, COL_INFO, "Configure Response"); + } + break; + + case 0x06: /* Disconnect Request */ + offset=dissect_disconnrequestresponse(tvb, offset, pinfo, btl2cap_cmd_tree); + proto_item_append_text(ti_command, "Disconnect Request"); + if ((check_col(pinfo->cinfo, COL_INFO))){ + col_append_str(pinfo->cinfo, COL_INFO, "Disconnect Request"); + } + break; + + case 0x07: /* Disconnect Response */ + offset=dissect_disconnrequestresponse(tvb, offset, pinfo, btl2cap_cmd_tree); + proto_item_append_text(ti_command, "Disconnect Response"); + if ((check_col(pinfo->cinfo, COL_INFO))){ + col_append_str(pinfo->cinfo, COL_INFO, "Disconnect Response"); + } + break; + + case 0x08: /* Echo Request */ + proto_item_append_text(ti_command, "Echo Request"); + offset+=tvb_length_remaining(tvb, offset); + if ((check_col(pinfo->cinfo, COL_INFO))){ + col_append_str(pinfo->cinfo, COL_INFO, "Echo Request"); + } + break; + + case 0x09: /* Echo Response */ + proto_item_append_text(ti_command, "Echo Response"); + offset+=tvb_length_remaining(tvb, offset); + if ((check_col(pinfo->cinfo, COL_INFO))){ + col_append_str(pinfo->cinfo, COL_INFO, "Echo Response"); + } + break; + + case 0x0a: /* Information Request */ + offset=dissect_inforequest(tvb, offset, pinfo, btl2cap_cmd_tree); + + proto_item_append_text(ti_command, "Information Request"); + if ((check_col(pinfo->cinfo, COL_INFO))){ + col_append_str(pinfo->cinfo, COL_INFO, "Information Request"); + } + break; + + case 0x0b: /* Information Response */ + offset=dissect_inforesponse(tvb, offset, pinfo, btl2cap_cmd_tree); + proto_item_append_text(ti_command, "Information Response"); + if ((check_col(pinfo->cinfo, COL_INFO))){ + col_append_str(pinfo->cinfo, COL_INFO, "Information Response"); + } + break; + + default: + proto_tree_add_item(btl2cap_cmd_tree, hf_btl2cap_cmd_data, tvb, offset, -1, TRUE); + offset+=tvb_length_remaining(tvb, offset); + break; + } + } + } else if (cid == 0x0002) { /* Connectionless reception channel */ + if(check_col(pinfo->cinfo, COL_INFO)){ + col_append_str(pinfo->cinfo, COL_INFO, "Connectionless reception channel"); + } + + psm = tvb_get_letohs(tvb, offset); + proto_tree_add_item(btl2cap_tree, hf_btl2cap_psm, tvb, offset, 2, TRUE); + offset+=2; + + + next_tvb = tvb_new_subset(tvb, offset, tvb_length_remaining(tvb, offset), length); + + /* call next dissector */ + if(!dissector_try_port(l2cap_psm_dissector_table, (guint32) psm, + next_tvb, pinfo, tree)){ + /* unknown protocol. declare as data */ + proto_tree_add_item(btl2cap_tree, hf_btl2cap_payload, tvb, offset, -1, TRUE); + } + offset+=tvb_length_remaining(tvb, offset); + } else if((cid >= 0x0040) && (cid <= 0xFFFF)){ /* Connection oriented channel */ + if(check_col(pinfo->cinfo, COL_INFO)){ + col_append_str(pinfo->cinfo, COL_INFO, "Connection oriented channel"); + } + + if((psm_data=se_tree_lookup32(cid_to_psm_table, cid|((pinfo->p2p_dir==P2P_DIR_RECV)?0x0000:0x8000)))){ + psm=psm_data->psm; + } else { + psm=0; + } + + next_tvb = tvb_new_subset(tvb, offset, tvb_length_remaining(tvb, offset), length); + + if(psm){ + /* call next dissector */ + if (!dissector_try_port(l2cap_psm_dissector_table, (guint32) psm, + next_tvb, pinfo, tree)) { + /* unknown protocol. declare as data */ + proto_tree_add_item(btl2cap_tree, hf_btl2cap_payload, tvb, offset, -1, TRUE); + } + offset+=tvb_length_remaining(tvb, offset); + } else { + proto_tree_add_item(btl2cap_tree, hf_btl2cap_payload, tvb, offset, -1, TRUE); + offset+=tvb_length_remaining(tvb, offset); + } + } else { /* Something else */ + if(check_col(pinfo->cinfo, COL_INFO)){ + col_clear(pinfo->cinfo, COL_INFO); + } + + proto_tree_add_item(btl2cap_tree, hf_btl2cap_payload, tvb, offset, -1, TRUE); + offset+=tvb_length_remaining(tvb, offset); + } +} + + +/* Register the protocol with Ethereal */ +void +proto_register_btl2cap(void) +{ + + /* Setup list of header fields See Section 1.6.1 for details*/ + static hf_register_info hf[] = { + { &hf_btl2cap_length, + { "Length", "btl2cap.length", + FT_UINT16, BASE_DEC, NULL, 0x0, + "L2CAP Payload Length", HFILL } + }, + { &hf_btl2cap_cid, + { "CID", "btl2cap.cid", + FT_UINT16, BASE_HEX, NULL, 0x0, + "L2CAP Channel Identifier", HFILL } + }, + { &hf_btl2cap_payload, + { "Payload", "btl2cap.payload", + FT_NONE, BASE_NONE, NULL, 0x0, + "L2CAP Payload", HFILL } + }, + { &hf_btl2cap_command, + { "Command", "btl2cap.command", + FT_NONE, BASE_NONE, NULL, 0x0, + "L2CAP Command", HFILL } + }, + { &hf_btl2cap_cmd_code, + { "Command Code", "btl2cap.cmd_code", + FT_UINT8, BASE_HEX, VALS(command_code_vals), 0x0, + "L2CAP Command Code", HFILL } + }, + { &hf_btl2cap_cmd_ident, + { "Command Identifier", "btl2cap.cmd_ident", + FT_UINT8, BASE_HEX, NULL, 0x0, + "L2CAP Command Identifier", HFILL } + }, + { &hf_btl2cap_cmd_length, + { "Command Length", "btl2cap.cmd_length", + FT_UINT8, BASE_DEC, NULL, 0x0, + "L2CAP Command Length", HFILL } + }, + { &hf_btl2cap_cmd_data, + { "Command Data", "btl2cap.cmd_data", + FT_NONE, BASE_NONE, NULL, 0x0, + "L2CAP Command Data", HFILL } + }, + { &hf_btl2cap_psm, + { "PSM", "btl2cap.psm", + FT_UINT16, BASE_HEX, VALS(psm_vals), 0x0, + "Protocol/Service Multiplexor", HFILL } + }, + { &hf_btl2cap_scid, + { "Source CID", "btl2cap.scid", + FT_UINT16, BASE_HEX, NULL, 0x0, + "Source Channel Identifier", HFILL } + }, + { &hf_btl2cap_dcid, + { "Destination CID", "btl2cap.dcid", + FT_UINT16, BASE_HEX, NULL, 0x0, + "Destination Channel Identifier", HFILL } + }, + { &hf_btl2cap_result, + { "Result", "btl2cap.result", + FT_UINT16, BASE_HEX, VALS(result_vals), 0x0, + "Result", HFILL } + }, + { &hf_btl2cap_status, + { "Status", "btl2cap.status", + FT_UINT16, BASE_HEX, VALS(status_vals), 0x0, + "Status", HFILL } + }, + { &hf_btl2cap_rej_reason, + { "Reason", "btl2cap.rej_reason", + FT_UINT16, BASE_HEX, VALS(reason_vals), 0x0, + "Reason", HFILL } + }, + { &hf_btl2cap_sig_mtu, + { "Maximum Signalling MTU", "btl2cap.sig_mtu", + FT_UINT16, BASE_DEC, NULL, 0x0, + "Maximum Signalling MTU", HFILL } + }, + { &hf_btl2cap_info_mtu, + { "Remote Entity MTU", "btl2cap.info_mtu", + FT_UINT16, BASE_DEC, NULL, 0x0, + "Remote entitiys acceptable connectionless MTU", HFILL } + }, + { &hf_btl2cap_info_type, + { "Information Type", "btl2cap.info_type", + FT_UINT16, BASE_HEX, VALS(info_type_vals), 0x0, + "Type of implementation-specific information", HFILL } + }, + { &hf_btl2cap_info_result, + { "Result", "btl2cap.info_result", + FT_UINT16, BASE_HEX, VALS(info_result_vals), 0x0, + "Information about the success of the request", HFILL } + }, + { &hf_btl2cap_continuation_flag, + { "Continuation Flag", "btl2cap.continuation", + FT_BOOLEAN, BASE_DEC, NULL, 0x0001, + "Continuation Flag", HFILL } + }, + { &hf_btl2cap_configuration_result, + { "Result", "btl2cap.conf_result", + FT_UINT16, BASE_HEX, VALS(configuration_result_vals), 0x0, + "Configuration Result", HFILL } + }, + { &hf_btl2cap_option_type, + { "Type", "btl2cap.option_type", + FT_UINT8, BASE_HEX, VALS(option_type_vals), 0x0, + "Type of option", HFILL } + }, + { &hf_btl2cap_option_length, + { "Length", "btl2cap.option_length", + FT_UINT8, BASE_DEC, NULL, 0x0, + "Number of octets in option payload ", HFILL } + }, + { &hf_btl2cap_option_mtu, + { "MTU", "btl2cap.option_mtu", + FT_UINT16, BASE_DEC, NULL, 0x0, + "Maximum Transmission Unit", HFILL } + }, + { &hf_btl2cap_option_flushTO, + { "Flush Timeout (ms)", "btl2cap.option_flushto", + FT_UINT16, BASE_DEC, NULL, 0x0, + "Flush Timeout in milliseconds", HFILL } + }, + { &hf_btl2cap_option_flags, + { "Flags", "btl2cap.option_flags", + FT_UINT8, BASE_HEX, NULL, 0x0, + "Flags - must be set to 0 (Reserved for future use)", HFILL } + }, + { &hf_btl2cap_option_service_type, + { "Service Type", "btl2cap.option_servicetype", + FT_UINT8, BASE_HEX, VALS(option_servicetype_vals), 0x0, + "Level of service required", HFILL } + }, + { &hf_btl2cap_option_tokenrate, + { "Token Rate (bytes/s)", "btl2cap.option_tokenrate", + FT_UINT32, BASE_DEC, NULL, 0x0, + "Rate at which traffic credits are granted (bytes/s)", HFILL } + }, + { &hf_btl2cap_option_tokenbucketsize, + { "Token Bucket Size (bytes)", "btl2cap.option_tokenbsize", + FT_UINT32, BASE_DEC, NULL, 0x0, + "Size of the token bucket (bytes)", HFILL } + }, + { &hf_btl2cap_option_peakbandwidth, + { "Peak Bandwidth (bytes/s)", "btl2cap.option_peakbandwidth", + FT_UINT32, BASE_DEC, NULL, 0x0, + "Limit how fast packets may be sent (bytes/s)", HFILL } + }, + { &hf_btl2cap_option_latency, + { "Latency (microseconds)", "btl2cap.option_latency", + FT_UINT32, BASE_DEC, NULL, 0x0, + "Maximal acceptable dealy (microseconds)", HFILL } + }, + { &hf_btl2cap_option_delayvariation, + { "Delay Variation (microseconds)", "btl2cap.option_dealyvar", + FT_UINT32, BASE_DEC, NULL, 0x0, + "Difference between maximum and minimum delay (microseconds)", HFILL } + }, + { &hf_btl2cap_option, + { "Configuration Parameter Option", "btl2cap.conf_param_option", + FT_NONE, BASE_NONE, NULL, 0x0, + "Configuration Parameter Option", HFILL } + }, + }; + + /* Setup protocol subtree array */ + static gint *ett[] = { + &ett_btl2cap, + &ett_btl2cap_cmd, + &ett_btl2cap_option, + }; + + /* Register the protocol name and description */ + proto_btl2cap = proto_register_protocol("Bluetooth L2CAP Packet", "L2CAP", "btl2cap"); + + register_dissector("btl2cap", dissect_btl2cap, proto_btl2cap); + + /* subdissector code */ + l2cap_psm_dissector_table = register_dissector_table("btl2cap.psm", "L2CAP PSM", FT_UINT16, BASE_HEX); + + /* Required function calls to register the header fields and subtrees used */ + proto_register_field_array(proto_btl2cap, hf, array_length(hf)); + proto_register_subtree_array(ett, array_length(ett)); + + cid_to_psm_table=se_tree_create(SE_TREE_TYPE_RED_BLACK, "btl2cap scid to psm"); + +} + + +void +proto_reg_handoff_btl2cap(void) +{ + +} + + diff --git a/epan/dissectors/packet-btl2cap.h b/epan/dissectors/packet-btl2cap.h new file mode 100644 index 0000000000..5288ce70f8 --- /dev/null +++ b/epan/dissectors/packet-btl2cap.h @@ -0,0 +1,31 @@ +/* packet-btl2cap.h + * + * $Id$ + * + * Ethereal - Network traffic analyzer + * By Gerald Combs + * 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. + */ + +#ifndef __PACKET_BTL2CAP_H__ +#define __PACKET_BTL2CAP_H__ + +#define BTL2CAP_PSM_SDP 0x0001 +#define BTL2CAP_PSM_RFCOMM 0x0003 +#define BTL2CAP_PSM_BNEP 0x000f + +#endif -- cgit v1.2.3