diff options
Diffstat (limited to 'plugins/epan/irda/packet-irda.c')
| -rw-r--r-- | plugins/epan/irda/packet-irda.c | 2259 |
1 files changed, 2259 insertions, 0 deletions
diff --git a/plugins/epan/irda/packet-irda.c b/plugins/epan/irda/packet-irda.c new file mode 100644 index 0000000000..a6035efa07 --- /dev/null +++ b/plugins/epan/irda/packet-irda.c @@ -0,0 +1,2259 @@ +/* packet-irda.c + * Routines for IrDA dissection + * By Shaun Jackman <sjackman@pathwayconnect.com> + * Copyright 2000 Shaun Jackman + * + * Extended by Jan Kiszka <jan.kiszka@web.de> + * Copyright 2003 Jan Kiszka + * + * Wireshark - Network traffic analyzer + * By Gerald Combs <gerald@wireshark.org> + * 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + */ + +#include "config.h" + +#include <string.h> + +#include <epan/packet.h> +#include <epan/address_types.h> +#include <epan/to_str.h> +#include <epan/conversation.h> +#include <epan/xdlc.h> +#include <wiretap/wtap.h> + +#include <epan/dissectors/packet-sll.h> +#include "irda-appl.h" + +/* + * This plugin dissects infrared data transmissions as defined by the IrDA + * specification (www.irda.org). See + * + * http://www.irda.org/standards/specifications.asp + * + * for various IrDA specifications. + * + * The plugin operates both offline with libpcap files and online on supported + * platforms. Live dissection is currently available for Linux-IrDA + * (irda.sourceforge.net) and for Windows if the Linux-IrDA port IrCOMM2k + * (www.ircomm2k.de) is installed. + */ + +/* + * LAP + */ + +/* Frame types and templates */ +#define INVALID 0xff + +/* + * XXX - the IrDA spec gives XID as 0x2c; HDLC (and other HDLC-derived + * protocolc) use 0xAC. + */ +#define IRDA_XID_CMD 0x2c /* Exchange Station Identification */ + +#define CMD_FRAME 0x01 +#define RSP_FRAME 0x00 + +/* Discovery Flags */ +#define S_MASK 0x03 +#define CONFLICT 0x04 + +/* Negotiation Parameters */ +#define PI_BAUD_RATE 0x01 +#define PI_MAX_TURN_TIME 0x82 +#define PI_DATA_SIZE 0x83 +#define PI_WINDOW_SIZE 0x84 +#define PI_ADD_BOFS 0x85 +#define PI_MIN_TURN_TIME 0x86 +#define PI_LINK_DISC 0x08 + + +/* + * LMP + */ + +/* IrLMP frame opcodes */ +#define CONNECT_CMD 0x01 +#define CONNECT_CNF 0x81 +#define DISCONNECT 0x02 +#define ACCESSMODE_CMD 0x03 +#define ACCESSMODE_CNF 0x83 + +#define CONTROL_BIT 0x80 +#define RESERVED_BIT 0x80 + +/* LSAP-SEL's */ +#define LSAP_MASK 0x7f +#define LSAP_IAS 0x00 +#define LSAP_ANY 0xff +#define LSAP_MAX 0x6f /* 0x70-0x7f are reserved */ +#define LSAP_CONNLESS 0x70 /* Connectionless LSAP, mostly used for Ultra */ + + +/* + * IAP + */ + +/* IrIAP Op-codes */ +#define GET_INFO_BASE 0x01 +#define GET_OBJECTS 0x02 +#define GET_VALUE 0x03 +#define GET_VALUE_BY_CLASS 0x04 +#define GET_OBJECT_INFO 0x05 +#define GET_ATTRIB_NAMES 0x06 + +#define IAP_LST 0x80 +#define IAP_ACK 0x40 +#define IAP_OP 0x3F + +#define IAS_SUCCESS 0 +#define IAS_CLASS_UNKNOWN 1 +#define IAS_ATTRIB_UNKNOWN 2 +#define IAS_ATTR_TOO_LONG 3 +#define IAS_DISCONNECT 10 +#define IAS_UNSUPPORTED 0xFF + + +/* + * TTP + */ + +#define TTP_PARAMETERS 0x80 +#define TTP_MORE 0x80 + +void proto_reg_handoff_irda(void); +void proto_register_irda(void); + +/* Initialize the protocol and registered fields */ +static int proto_irlap = -1; +static int hf_lap_a = -1; +static int hf_lap_a_cr = -1; +static int hf_lap_a_address = -1; +static int hf_lap_c = -1; +static int hf_lap_c_nr = -1; +static int hf_lap_c_ns = -1; +static int hf_lap_c_p = -1; +static int hf_lap_c_f = -1; +static int hf_lap_c_s = -1; +static int hf_lap_c_u_cmd = -1; +static int hf_lap_c_u_rsp = -1; +static int hf_lap_c_i = -1; +static int hf_lap_c_s_u = -1; +static int hf_lap_i = -1; +static int hf_snrm_saddr = -1; +static int hf_snrm_daddr = -1; +static int hf_snrm_ca = -1; +static int hf_ua_saddr = -1; +static int hf_ua_daddr = -1; +static int hf_negotiation_param = -1; +static int hf_param_pi = -1; +static int hf_param_pl = -1; +static int hf_param_pv = -1; +static int hf_xid_ident = -1; +static int hf_xid_saddr = -1; +static int hf_xid_daddr = -1; +static int hf_xid_flags = -1; +static int hf_xid_s = -1; +static int hf_xid_conflict = -1; +static int hf_xid_slotnr = -1; +static int hf_xid_version = -1; + +static int proto_irlmp = -1; +static int hf_lmp_xid_hints = -1; +static int hf_lmp_xid_charset = -1; +static int hf_lmp_xid_name = -1; +static int hf_lmp_xid_name_no_ascii = -1; +static int hf_lmp_dst = -1; +static int hf_lmp_dst_control = -1; +static int hf_lmp_dst_lsap = -1; +static int hf_lmp_src = -1; +static int hf_lmp_src_r = -1; +static int hf_lmp_src_lsap = -1; +static int hf_lmp_opcode = -1; +static int hf_lmp_rsvd = -1; +static int hf_lmp_reason = -1; +static int hf_lmp_mode = -1; +static int hf_lmp_status = -1; + +static int proto_iap = -1; +static int hf_iap_ctl = -1; +static int hf_iap_ctl_lst = -1; +static int hf_iap_ctl_ack = -1; +static int hf_iap_ctl_opcode = -1; +static int hf_iap_class_name = -1; +static int hf_iap_attr_name = -1; +static int hf_iap_return = -1; +static int hf_iap_list_len = -1; +static int hf_iap_list_entry = -1; +static int hf_iap_obj_id = -1; +static int hf_iap_attr_type = -1; +static int hf_iap_int = -1; +static int hf_iap_seq_len = -1; +static int hf_iap_oct_seq = -1; +static int hf_iap_char_set = -1; +static int hf_iap_string = -1; +static int hf_iap_invaloctet = -1; +static int hf_iap_invallsap = -1; + +static int proto_ttp = -1; +static int hf_ttp_p = -1; +static int hf_ttp_icredit = -1; +static int hf_ttp_m = -1; +static int hf_ttp_dcredit = -1; + +static int proto_log = -1; +static int hf_log_msg = -1; +static int hf_log_missed = -1; + +/* Initialize the subtree pointers */ +static gint ett_irlap = -1; +static gint ett_lap_a = -1; +static gint ett_lap_c = -1; +static gint ett_lap_i = -1; +static gint ett_xid_flags = -1; +static gint ett_log = -1; +static gint ett_irlmp = -1; +static gint ett_lmp_dst = -1; +static gint ett_lmp_src = -1; +static gint ett_iap = -1; +static gint ett_iap_ctl = -1; +static gint ett_ttp = -1; + +#define MAX_PARAMETERS 32 +static gint ett_param[MAX_PARAMETERS]; + +static gint ett_iap_entry[MAX_IAP_ENTRIES]; + +static int irda_address_type = -1; + +static dissector_handle_t irda_handle; + +static const xdlc_cf_items irlap_cf_items = { + &hf_lap_c_nr, + &hf_lap_c_ns, + &hf_lap_c_p, + &hf_lap_c_f, + &hf_lap_c_s, + &hf_lap_c_u_cmd, + &hf_lap_c_u_rsp, + &hf_lap_c_i, + &hf_lap_c_s_u +}; + +/* IAP conversation type */ +typedef struct iap_conversation { + struct iap_conversation* pnext; + guint32 iap_query_frame; + ias_attr_dissector_t* pattr_dissector; +} iap_conversation_t; + +/* IrLMP conversation type */ +typedef struct lmp_conversation { + struct lmp_conversation* pnext; + guint32 iap_result_frame; + gboolean ttp; + dissector_handle_t dissector; +} lmp_conversation_t; + +static const true_false_string lap_cr_vals = { + "Command", + "Response" +}; + +static const true_false_string set_notset = { + "Set", + "Not set" +}; + +static const value_string lap_c_ftype_vals[] = { + { XDLC_I, "Information frame" }, + { XDLC_S, "Supervisory frame" }, + { XDLC_U, "Unnumbered frame" }, + { 0, NULL } +}; + +static const value_string lap_c_u_cmd_abbr_vals[] = { + { XDLC_SNRM, "SNRM" }, + { XDLC_DISC, "DISC" }, + { XDLC_UI, "UI" }, + { IRDA_XID_CMD, "XID" }, + { XDLC_TEST, "TEST" }, + { 0, NULL } +}; + +static const value_string lap_c_u_rsp_abbr_vals[] = { + { XDLC_SNRM, "RNRM" }, + { XDLC_UA, "UA" }, + { XDLC_FRMR, "FRMR" }, + { XDLC_DM, "DM" }, + { XDLC_RD, "RD" }, + { XDLC_UI, "UI" }, + { XDLC_XID, "XID" }, + { XDLC_TEST, "TEST" }, + { 0, NULL } +}; + +static const value_string lap_c_u_cmd_vals[] = { + { XDLC_SNRM>>2, "Set Normal Response Mode" }, + { XDLC_DISC>>2, "Disconnect" }, + { XDLC_UI>>2, "Unnumbered Information" }, + { IRDA_XID_CMD>>2, "Exchange Station Identification" }, + { XDLC_TEST>>2, "Test" }, + { 0, NULL } +}; + +static const value_string lap_c_u_rsp_vals[] = { + { XDLC_SNRM>>2, "Request Normal Response Mode" }, + { XDLC_UA>>2, "Unnumbered Acknowledge" }, + { XDLC_FRMR>>2, "Frame Reject" }, + { XDLC_DM>>2, "Disconnect Mode" }, + { XDLC_RD>>2, "Request Disconnect" }, + { XDLC_UI>>2, "Unnumbered Information" }, + { XDLC_XID>>2, "Exchange Station Identification" }, + { XDLC_TEST>>2, "Test" }, + { 0, NULL } +}; + +static const value_string lap_c_s_vals[] = { + { XDLC_RR>>2, "Receiver ready" }, + { XDLC_RNR>>2, "Receiver not ready" }, + { XDLC_REJ>>2, "Reject" }, + { XDLC_SREJ>>2, "Selective reject" }, + { 0, NULL } +}; + +static const value_string xid_slot_numbers[] = { +/* Number of XID slots */ + { 0, "1" }, + { 1, "6" }, + { 2, "8" }, + { 3, "16" }, + { 0, NULL } +}; + +static const value_string lmp_opcode_vals[] = { +/* IrLMP frame opcodes */ + { CONNECT_CMD, "Connect Command" }, + { CONNECT_CNF, "Connect Confirm" }, + { DISCONNECT, "Disconnect" }, + { ACCESSMODE_CMD, "Access Mode Command" }, + { ACCESSMODE_CNF, "Access Mode Confirm" }, + { 0, NULL } +}; + +static const value_string lmp_reason_vals[] = { +/* IrLMP disconnect reasons */ + { 0x01, "User Request" }, + { 0x02, "Unexpected IrLAP Disconnect" }, + { 0x03, "Failed to establish IrLAP connection" }, + { 0x04, "IrLAP Reset" }, + { 0x05, "Link Management Initiated Disconnect" }, + { 0x06, "Data delivered on disconnected LSAP-Connection"}, + { 0x07, "Non Responsive LM-MUX Client" }, + { 0x08, "No available LM-MUX Client" }, + { 0x09, "Connection Half Open" }, + { 0x0A, "Illegal Source Address" }, + { 0xFF, "Unspecified Disconnect Reason" }, + { 0, NULL } +}; + +static const value_string lmp_mode_vals[] = { +/* IrLMP modes */ + { 0x00, "Multiplexed" }, + { 0x01, "Exclusive" }, + { 0, NULL } +}; + +static const value_string lmp_status_vals[] = { +/* IrLMP status */ + { 0x00, "Success" }, + { 0x01, "Failure" }, + { 0xFF, "Unsupported" }, + { 0, NULL } +}; + +static const value_string iap_opcode_vals[] = { +/* IrIAP Op-codes */ + { GET_INFO_BASE, "GetInfoBase" }, + { GET_OBJECTS, "GetObjects" }, + { GET_VALUE, "GetValue" }, + { GET_VALUE_BY_CLASS, "GetValueByClass" }, + { GET_OBJECT_INFO, "GetObjectInfo" }, + { GET_ATTRIB_NAMES, "GetAttributeNames" }, + { 0, NULL } +}; + +static const value_string iap_return_vals[] = { +/* IrIAP Return-codes */ + { IAS_SUCCESS, "Success" }, + { IAS_CLASS_UNKNOWN, "Class/Object Unknown" }, + { IAS_ATTRIB_UNKNOWN, "Attribute Unknown" }, + { IAS_ATTR_TOO_LONG, "Attribute List Too Long" }, + { IAS_DISCONNECT, "Disconnect (Linux-IrDA only)" }, + { IAS_UNSUPPORTED, "Unsupported Optional Operation" }, + { 0, NULL } +}; + +static const value_string iap_attr_type_vals[] = { +/* LM-IAS Attribute types */ + { IAS_MISSING, "Missing" }, + { IAS_INTEGER, "Integer" }, + { IAS_OCT_SEQ, "Octet Sequence" }, + { IAS_STRING, "String" }, + { 0, NULL } +}; + +static ias_attr_dissector_t device_attr_dissector[] = { +/* Device attribute dissectors */ +/* { "IrLMPSupport", xxx }, not implemented yet... */ + { NULL, NULL } +}; + +/* IAS class dissectors */ +static ias_class_dissector_t class_dissector[] = { CLASS_DISSECTORS }; + + +/* + * Dissect parameter tuple + */ +guint dissect_param_tuple(tvbuff_t* tvb, proto_tree* tree, guint offset) +{ + guint8 len = tvb_get_guint8(tvb, offset + 1); + + if (tree) + proto_tree_add_item(tree, hf_param_pi, tvb, offset, 1, ENC_BIG_ENDIAN); + offset++; + + if (tree) + proto_tree_add_item(tree, hf_param_pl, tvb, offset, 1, ENC_BIG_ENDIAN); + offset++; + + if (len > 0) + { + if (tree) + proto_tree_add_item(tree, hf_param_pv, tvb, offset, len, ENC_NA); + offset += len; + } + + return offset; +} + + +/* + * Dissect TTP + */ +static guint dissect_ttp(tvbuff_t* tvb, packet_info* pinfo, proto_tree* root, gboolean data) +{ + guint offset = 0; + guint8 head; + char buf[128]; + + if (tvb_reported_length(tvb) == 0) + return 0; + + /* Make entries in Protocol column on summary display */ + col_set_str(pinfo->cinfo, COL_PROTOCOL, "TTP"); + + head = tvb_get_guint8(tvb, offset); + + g_snprintf(buf, 128, ", Credit=%d", head & ~TTP_PARAMETERS); + col_append_str(pinfo->cinfo, COL_INFO, buf); + + if (root) + { + /* create display subtree for the protocol */ + proto_item* ti = proto_tree_add_item(root, proto_ttp, tvb, 0, -1, ENC_NA); + proto_tree* tree = proto_item_add_subtree(ti, ett_ttp); + + if (data) + { + proto_tree_add_item(tree, hf_ttp_m, tvb, offset, 1, ENC_BIG_ENDIAN); + proto_tree_add_item(tree, hf_ttp_dcredit, tvb, offset, 1, ENC_BIG_ENDIAN); + offset++; + } + else + { + proto_tree_add_item(tree, hf_ttp_p, tvb, offset, 1, ENC_BIG_ENDIAN); + proto_tree_add_item(tree, hf_ttp_icredit, tvb, offset, 1, ENC_BIG_ENDIAN); + offset++; + } + proto_item_set_len(tree, offset); + } + else + offset++; + + return offset; +} + + +/* + * Dissect IAP request + */ +static void dissect_iap_request(tvbuff_t* tvb, packet_info* pinfo, proto_tree* root, guint8 circuit_id) +{ + guint offset = 0; + guint8 op; + guint8 clen = 0; + guint8 alen = 0; + guint8 src; + address srcaddr; + address destaddr; + conversation_t* conv; + iap_conversation_t* iap_conv; + char buf[128]; + + if (tvb_reported_length(tvb) == 0) + return; + + /* Make entries in Protocol column on summary display */ + col_set_str(pinfo->cinfo, COL_PROTOCOL, "IAP"); + + op = tvb_get_guint8(tvb, offset) & IAP_OP; + + switch (op) + { + case GET_VALUE_BY_CLASS: + clen = MIN(tvb_get_guint8(tvb, offset + 1), 60); + alen = MIN(tvb_get_guint8(tvb, offset + 1 + 1 + clen), 60); + + /* create conversation entry */ + src = circuit_id ^ CMD_FRAME; + set_address(&srcaddr, irda_address_type, 1, &src); + + set_address(&destaddr, irda_address_type, 1, &circuit_id); + + conv = find_conversation(pinfo->num, &srcaddr, &destaddr, ENDPOINT_NONE, pinfo->srcport, pinfo->destport, 0); + if (conv) + { + iap_conv = (iap_conversation_t*)conversation_get_proto_data(conv, proto_iap); + while (1) + { + if (iap_conv->iap_query_frame == pinfo->num) + { + iap_conv = NULL; + break; + } + if (iap_conv->pnext == NULL) + { + iap_conv->pnext = wmem_new(wmem_file_scope(), iap_conversation_t); + iap_conv = iap_conv->pnext; + break; + } + iap_conv = iap_conv->pnext; + } + } + else + { + conv = conversation_new(pinfo->num, &srcaddr, &destaddr, ENDPOINT_NONE, pinfo->srcport, pinfo->destport, 0); + iap_conv = wmem_new(wmem_file_scope(), iap_conversation_t); + conversation_add_proto_data(conv, proto_iap, (void*)iap_conv); + } + + /* Dissect IAP query if it is new */ + if (iap_conv) + { + int i, j; + char class_name[256]; + char attr_name[256]; + + + iap_conv->pnext = NULL; + iap_conv->iap_query_frame = pinfo->num; + iap_conv->pattr_dissector = NULL; + + tvb_memcpy(tvb, class_name, offset + 1 + 1, clen); + class_name[clen] = 0; + tvb_memcpy(tvb, attr_name, offset + 1 + 1 + clen + 1, alen); + attr_name[alen] = 0; + + /* Find the attribute dissector */ + for (i = 0; class_dissector[i].class_name != NULL; i++) + if (strcmp(class_name, class_dissector[i].class_name) == 0) + { + for (j = 0; class_dissector[i].pattr_dissector[j].attr_name != NULL; j++) + if (strcmp(attr_name, class_dissector[i].pattr_dissector[j].attr_name) == 0) + { + iap_conv->pattr_dissector = &class_dissector[i].pattr_dissector[j]; + break; + } + break; + } + } + + col_set_str(pinfo->cinfo, COL_INFO, "GetValueByClass: \""); + + tvb_memcpy(tvb, buf, offset + 1 + 1, clen); + memcpy(&buf[clen], "\" \"", 3); + tvb_memcpy(tvb, buf + clen + 3, offset + 1 + 1 + clen + 1, alen); + buf[clen + 3 + alen] = '\"'; + buf[clen + 3 + alen + 1] = 0; + col_append_str(pinfo->cinfo, COL_INFO, buf); + } + + if (root) + { + /* create display subtree for the protocol */ + proto_item* ti = proto_tree_add_item(root, proto_iap, tvb, 0, -1, ENC_NA); + proto_tree* tree = proto_item_add_subtree(ti, ett_iap); + + proto_tree* ctl_tree; + + + ti = proto_tree_add_item(tree, hf_iap_ctl, tvb, offset, 1, ENC_BIG_ENDIAN); + ctl_tree = proto_item_add_subtree(ti, ett_iap_ctl); + proto_tree_add_item(ctl_tree, hf_iap_ctl_lst, tvb, offset, 1, ENC_BIG_ENDIAN); + proto_tree_add_item(ctl_tree, hf_iap_ctl_ack, tvb, offset, 1, ENC_BIG_ENDIAN); + proto_tree_add_item(ctl_tree, hf_iap_ctl_opcode, tvb, offset, 1, ENC_BIG_ENDIAN); + offset++; + + switch (op) + { + case GET_VALUE_BY_CLASS: + proto_tree_add_item(tree, hf_iap_class_name, tvb, offset, 1, ENC_ASCII|ENC_BIG_ENDIAN); + offset += 1 + clen; + + proto_tree_add_item(tree, hf_iap_attr_name, tvb, offset, 1, ENC_ASCII|ENC_BIG_ENDIAN); + offset += 1 + alen; + break; + } + } + else + { + offset++; + switch (op) + { + case GET_VALUE_BY_CLASS: + offset += 1 + clen + 1 + alen; + break; + } + } + + /* If any bytes remain, send it to the generic data dissector */ + tvb = tvb_new_subset_remaining(tvb, offset); + call_data_dissector(tvb, pinfo, root); +} + + +/* + * Dissect IAP result + */ +static void dissect_iap_result(tvbuff_t* tvb, packet_info* pinfo, proto_tree* root, guint8 circuit_id) +{ + guint offset = 0; + guint len = tvb_reported_length(tvb); + guint n = 0; + guint list_len; + guint8 op; + guint8 retcode; + guint8 type; + guint16 attr_len; + char buf[300]; + guint8 src; + address srcaddr; + address destaddr; + conversation_t* conv; + iap_conversation_t* cur_iap_conv; + iap_conversation_t* iap_conv = NULL; + guint32 num; + + + if (len == 0) + return; + + /* Make entries in Protocol column on summary display */ + col_set_str(pinfo->cinfo, COL_PROTOCOL, "IAP"); + + op = tvb_get_guint8(tvb, offset) & IAP_OP; + retcode = tvb_get_guint8(tvb, offset + 1); + + src = circuit_id ^ CMD_FRAME; + set_address(&srcaddr, irda_address_type, 1, &src); + + set_address(&destaddr, irda_address_type, 1, &circuit_id); + + /* Find result value dissector */ + conv = find_conversation(pinfo->num, &srcaddr, &destaddr, ENDPOINT_NONE, pinfo->srcport, pinfo->destport, 0); + if (conv) + { + num = pinfo->num; + + iap_conv = (iap_conversation_t*)conversation_get_proto_data(conv, proto_iap); + while (iap_conv && (iap_conv->iap_query_frame >= num)) + iap_conv = iap_conv->pnext; + + if (iap_conv) + { + cur_iap_conv = iap_conv->pnext; + while (cur_iap_conv) + { + if ((cur_iap_conv->iap_query_frame < num) && + (cur_iap_conv->iap_query_frame > iap_conv->iap_query_frame)) + { + iap_conv = cur_iap_conv; + } + + cur_iap_conv = cur_iap_conv->pnext; + } + } + } + + col_set_str(pinfo->cinfo, COL_INFO, "Result: "); + col_append_str(pinfo->cinfo, COL_INFO, val_to_str(retcode, iap_return_vals, "0x%02X")); + + switch (op) + { + case GET_VALUE_BY_CLASS: + if (retcode == 0) + { + switch (tvb_get_guint8(tvb, offset + 6)) + { + case IAS_MISSING: + col_append_str(pinfo->cinfo, COL_INFO, ", Missing"); + break; + + case IAS_INTEGER: + col_append_fstr(pinfo->cinfo, COL_INFO, ", Integer: %d", tvb_get_ntohl(tvb, offset + 7)); + break; + + case IAS_OCT_SEQ: + g_snprintf(buf, 300, ", %d Octets", tvb_get_ntohs(tvb, offset + 7)); + break; + + case IAS_STRING: + n = tvb_get_guint8(tvb, offset + 8); + col_append_fstr(pinfo->cinfo, COL_INFO, ", \"%s\"", tvb_get_string_enc(wmem_packet_scope(), tvb, offset + 9, n, ENC_ASCII)); + break; + default: + break; + } + if (tvb_get_ntohs(tvb, offset + 2) > 1) + col_append_str(pinfo->cinfo, COL_INFO, ", ..."); + } + break; + } + + if (root) + { + /* create display subtree for the protocol */ + proto_item* ti = proto_tree_add_item(root, proto_iap, tvb, 0, -1, ENC_NA); + proto_tree* tree = proto_item_add_subtree(ti, ett_iap); + + proto_tree* ctl_tree; + proto_tree* entry_tree; + + + ti = proto_tree_add_item(tree, hf_iap_ctl, tvb, offset, 1, ENC_BIG_ENDIAN); + ctl_tree = proto_item_add_subtree(ti, ett_iap_ctl); + proto_tree_add_item(ctl_tree, hf_iap_ctl_lst, tvb, offset, 1, ENC_BIG_ENDIAN); + proto_tree_add_item(ctl_tree, hf_iap_ctl_ack, tvb, offset, 1, ENC_BIG_ENDIAN); + proto_tree_add_item(ctl_tree, hf_iap_ctl_opcode, tvb, offset, 1, ENC_BIG_ENDIAN); + offset++; + + proto_tree_add_item(tree, hf_iap_return, tvb, offset, 1, ENC_BIG_ENDIAN); + offset++; + + switch (op) + { + case GET_VALUE_BY_CLASS: + if (retcode == 0) + { + list_len = tvb_get_ntohs(tvb, offset); + + proto_tree_add_item(tree, hf_iap_list_len, tvb, offset, 2, ENC_BIG_ENDIAN); + offset += 2; + + while ((offset < len) && (n < list_len)) + { + type = tvb_get_guint8(tvb, offset + 2); + switch (type) + { + case IAS_INTEGER: + attr_len = 4; + break; + + case IAS_OCT_SEQ: + attr_len = tvb_get_ntohs(tvb, offset + 2 + 1) + 2; + break; + + case IAS_STRING: + attr_len = tvb_get_guint8(tvb, offset + 2 + 1 + 1) + 2; + break; + + default: + attr_len = 0; + } + + ti = proto_tree_add_item(tree, hf_iap_list_entry, tvb, offset, 2 + 1 + attr_len, ENC_NA); + proto_item_append_text(ti, "%d", n + 1); + entry_tree = proto_item_add_subtree(ti, ett_iap_entry[n]); + + proto_tree_add_item(entry_tree, hf_iap_obj_id, tvb, offset, 2, ENC_BIG_ENDIAN); + offset += 2; + + proto_tree_add_item(entry_tree, hf_iap_attr_type, tvb, offset, 1, ENC_BIG_ENDIAN); + offset++; + + switch (type) + { + case IAS_INTEGER: + if (!iap_conv || !iap_conv->pattr_dissector || + !iap_conv->pattr_dissector->value_dissector(tvb, offset, pinfo, entry_tree, + n, type, circuit_id)) + proto_tree_add_item(entry_tree, hf_iap_int, tvb, offset, 4, ENC_BIG_ENDIAN); + break; + + case IAS_OCT_SEQ: + proto_tree_add_item(entry_tree, hf_iap_seq_len, tvb, offset, 2, ENC_BIG_ENDIAN); + if (!iap_conv || !iap_conv->pattr_dissector || + !iap_conv->pattr_dissector->value_dissector(tvb, offset, pinfo, entry_tree, + n, type, circuit_id)) + proto_tree_add_item(entry_tree, hf_iap_oct_seq, tvb, offset + 2, + attr_len - 2, ENC_NA); + break; + + case IAS_STRING: + proto_tree_add_item(entry_tree, hf_iap_char_set, tvb, offset, 1, ENC_BIG_ENDIAN); + if (!iap_conv || !iap_conv->pattr_dissector || + !iap_conv->pattr_dissector->value_dissector(tvb, offset, pinfo, entry_tree, + n, type, circuit_id)) + proto_tree_add_item(entry_tree, hf_iap_string, tvb, offset + 1, 1, ENC_ASCII|ENC_BIG_ENDIAN); + break; + } + offset += attr_len; + + n++; + } + } + break; + } + } + else + { + offset += 2; + switch (op) + { + case GET_VALUE_BY_CLASS: + if (retcode == 0) + { + offset += 2; + + while (offset < len) + { + offset += 2; + type = tvb_get_guint8(tvb, offset); + offset++; + + switch (type) + { + case IAS_INTEGER: + attr_len = 4; + if (iap_conv && iap_conv->pattr_dissector) + iap_conv->pattr_dissector->value_dissector(tvb, offset, pinfo, 0, + n, type, circuit_id); + break; + + case IAS_OCT_SEQ: + attr_len = tvb_get_ntohs(tvb, offset) + 2; + if (iap_conv && iap_conv->pattr_dissector) + iap_conv->pattr_dissector->value_dissector(tvb, offset, pinfo, 0, + n, type, circuit_id); + break; + + case IAS_STRING: + attr_len = tvb_get_guint8(tvb, offset + 1) + 2; + if (iap_conv && iap_conv->pattr_dissector) + iap_conv->pattr_dissector->value_dissector(tvb, offset, pinfo, 0, + n, type, circuit_id); + break; + + default: + attr_len = 0; + } + offset += attr_len; + + n++; + } + } + break; + } + } + + /* If any bytes remain, send it to the generic data dissector */ + tvb = tvb_new_subset_remaining(tvb, offset); + call_data_dissector(tvb, pinfo, root); +} + + +/* + * Check if IAP result is octet sequence + */ +gboolean check_iap_octet_result(tvbuff_t* tvb, proto_tree* tree, guint offset, + const char* attr_name, guint8 attr_type) +{ + if (attr_type != IAS_OCT_SEQ) + { + if (tree) + { + proto_item* ti = proto_tree_add_item(tree, hf_iap_invaloctet, tvb, offset, 0, ENC_NA); + proto_item_append_text(ti, "%s", attr_name); + proto_item_append_text(ti, "\" attribute must be octet sequence!"); + } + + return FALSE; + } + else + return TRUE; +} + + +/* + * Check if IAP result is correct LsapSel + */ +guint8 check_iap_lsap_result(tvbuff_t* tvb, proto_tree* tree, guint offset, + const char* attr_name, guint8 attr_type) +{ + guint32 lsap; + + + if ((attr_type != IAS_INTEGER) || ((lsap = tvb_get_ntohl(tvb, offset)) < 0x01) || + (lsap > 0x6F)) + { + if (tree) + { + proto_item* ti = proto_tree_add_item(tree, hf_iap_invallsap, tvb, offset, 0, ENC_NA); + proto_item_append_text(ti, "%s", attr_name); + proto_item_append_text(ti, "\" attribute must be integer value between 0x01 and 0x6F!"); + } + + return 0; + } + else + return lsap; +} + + +/* + * Dissect IrDA application protocol + */ +static void dissect_appl_proto(tvbuff_t* tvb, packet_info* pinfo, proto_tree* root, pdu_type_t pdu_type, guint8 circuit_id) +{ + guint offset = 0; + guint8 src; + address srcaddr; + address destaddr; + conversation_t* conv; + lmp_conversation_t* cur_lmp_conv; + lmp_conversation_t* lmp_conv = NULL; + guint32 num; + + + src = circuit_id ^ CMD_FRAME; + set_address(&srcaddr, irda_address_type, 1, &src); + + set_address(&destaddr, irda_address_type, 1, &circuit_id); + + /* Find result value dissector */ + conv = find_conversation(pinfo->num, &srcaddr, &destaddr, ENDPOINT_NONE, pinfo->srcport, pinfo->destport, 0); + if (conv) + { + num = pinfo->num; + + lmp_conv = (lmp_conversation_t*)conversation_get_proto_data(conv, proto_irlmp); + while (lmp_conv && (lmp_conv->iap_result_frame >= num)) + lmp_conv = lmp_conv->pnext; + + if (lmp_conv) + { + cur_lmp_conv = lmp_conv->pnext; + while (cur_lmp_conv) + { + if ((cur_lmp_conv->iap_result_frame < num) && + (cur_lmp_conv->iap_result_frame > lmp_conv->iap_result_frame)) + { + lmp_conv = cur_lmp_conv; + } + + cur_lmp_conv = cur_lmp_conv->pnext; + } + } + } + + if (lmp_conv) + { +/*g_message("%x:%d->%x:%d = %p\n", src, pinfo->srcport, circuit_id, pinfo->destport, lmp_conv); */ +/*g_message("->%d: %d %d %p\n", pinfo->num, lmp_conv->iap_result_frame, lmp_conv->ttp, lmp_conv->proto_dissector); */ + if ((lmp_conv->ttp) && (pdu_type != DISCONNECT_PDU)) + { + offset += dissect_ttp(tvb, pinfo, root, (pdu_type == DATA_PDU)); + + tvb = tvb_new_subset_remaining(tvb, offset); + } + + call_dissector_with_data(lmp_conv->dissector, tvb, pinfo, root, GUINT_TO_POINTER(pdu_type)); + } + else + call_data_dissector(tvb, pinfo, root); +} + + +/* + * Dissect LMP + */ +static void dissect_irlmp(tvbuff_t* tvb, packet_info* pinfo, proto_tree* root, guint8 circuit_id) +{ + guint offset = 0; + guint8 dlsap; + guint8 slsap; + guint8 cbit; + guint8 opcode = 0; + + + /* Make entries in Protocol column on summary display */ + col_set_str(pinfo->cinfo, COL_PROTOCOL, "IrLMP"); + + dlsap = tvb_get_guint8(tvb, offset); + cbit = dlsap & CONTROL_BIT; + dlsap &= ~CONTROL_BIT; + + slsap = tvb_get_guint8(tvb, offset+1) & ~CONTROL_BIT; + + /* save Lsaps in pinfo */ + pinfo->srcport = slsap; + pinfo->destport = dlsap; + + if (cbit != 0) + { + opcode = tvb_get_guint8(tvb, offset+2); + + col_add_fstr(pinfo->cinfo, COL_INFO, "%d > %d, ", slsap, dlsap); + col_append_str(pinfo->cinfo, COL_INFO, val_to_str(opcode, lmp_opcode_vals, "0x%02X")); + if ((opcode == ACCESSMODE_CMD) || (opcode == ACCESSMODE_CNF)) + { + col_append_str(pinfo->cinfo, COL_INFO, " ("); + col_append_str(pinfo->cinfo, COL_INFO, + val_to_str(tvb_get_guint8(tvb, offset+4), lmp_mode_vals, "0x%02X")); + col_append_str(pinfo->cinfo, COL_INFO, ")"); + } + } + else + col_add_fstr(pinfo->cinfo, COL_INFO, "%d > %d, Len=%d", slsap, dlsap, + tvb_reported_length(tvb) - 2); + + if (root) + { + /* create display subtree for the protocol */ + proto_item* ti = proto_tree_add_item(root, proto_irlmp, tvb, 0, -1, ENC_NA); + proto_tree* tree = proto_item_add_subtree(ti, ett_irlmp); + + proto_tree* dst_tree; + proto_tree* src_tree; + + + ti = proto_tree_add_item(tree, hf_lmp_dst, tvb, offset, 1, ENC_BIG_ENDIAN); + dst_tree = proto_item_add_subtree(ti, ett_lmp_dst); + proto_tree_add_item(dst_tree, hf_lmp_dst_control, tvb, offset, 1, ENC_BIG_ENDIAN); + proto_tree_add_item(dst_tree, hf_lmp_dst_lsap, tvb, offset, 1, ENC_BIG_ENDIAN); + offset++; + + ti = proto_tree_add_item(tree, hf_lmp_src, tvb, offset, 1, ENC_BIG_ENDIAN); + src_tree = proto_item_add_subtree(ti, ett_lmp_src); + proto_tree_add_item(src_tree, hf_lmp_src_r, tvb, offset, 1, ENC_BIG_ENDIAN); + proto_tree_add_item(src_tree, hf_lmp_src_lsap, tvb, offset, 1, ENC_BIG_ENDIAN); + offset++; + + if (cbit != 0) + { + proto_tree_add_item(tree, hf_lmp_opcode, tvb, offset, 1, ENC_BIG_ENDIAN); + offset++; + + switch (opcode) + { + case CONNECT_CMD: + case CONNECT_CNF: + if (offset < tvb_reported_length(tvb)) + { + proto_tree_add_item(tree, hf_lmp_rsvd, tvb, offset, 1, ENC_BIG_ENDIAN); + offset++; + } + break; + + case DISCONNECT: + proto_tree_add_item(tree, hf_lmp_reason, tvb, offset, 1, ENC_BIG_ENDIAN); + offset++; + break; + + case ACCESSMODE_CMD: + proto_tree_add_item(tree, hf_lmp_rsvd, tvb, offset, 1, ENC_BIG_ENDIAN); + offset++; + + proto_tree_add_item(tree, hf_lmp_mode, tvb, offset, 1, ENC_BIG_ENDIAN); + offset++; + break; + + case ACCESSMODE_CNF: + proto_tree_add_item( tree, hf_lmp_status, tvb, offset, 1, ENC_BIG_ENDIAN); + offset++; + + proto_tree_add_item(tree, hf_lmp_mode, tvb, offset, 1, ENC_BIG_ENDIAN); + offset++; + break; + } + } + + tvb = tvb_new_subset_remaining(tvb, offset); + proto_item_set_len(tree, offset); + } + else + { + offset += 2; + if (cbit != 0) + { + offset += 1; + + switch (opcode) + { + case CONNECT_CMD: + case CONNECT_CNF: + if (offset < tvb_reported_length(tvb)) + offset++; + break; + + case DISCONNECT: + offset++; + break; + + case ACCESSMODE_CMD: + case ACCESSMODE_CNF: + offset += 2; + break; + } + } + + tvb = tvb_new_subset_remaining(tvb, offset); + } + + if (cbit == 0) + { + if (dlsap == LSAP_IAS) + dissect_iap_request(tvb, pinfo, root, circuit_id); + else if (slsap == LSAP_IAS) + dissect_iap_result(tvb, pinfo, root, circuit_id); + else + dissect_appl_proto(tvb, pinfo, root, DATA_PDU, circuit_id); + } + else + { + if ((dlsap == LSAP_IAS) || (slsap == LSAP_IAS)) + call_data_dissector(tvb, pinfo, root); + else + switch (opcode) + { + case CONNECT_CMD: + case CONNECT_CNF: + dissect_appl_proto(tvb, pinfo, root, CONNECT_PDU, circuit_id); + break; + + case DISCONNECT: + dissect_appl_proto(tvb, pinfo, root, DISCONNECT_PDU, circuit_id); + break; + + default: + call_data_dissector(tvb, pinfo, root); + } + } +} + + +/* + * Add LMP conversation + */ +void add_lmp_conversation(packet_info* pinfo, guint8 dlsap, gboolean ttp, dissector_handle_t dissector, guint8 circuit_id) +{ + guint8 dest; + address srcaddr; + address destaddr; + conversation_t* conv; + lmp_conversation_t* lmp_conv = NULL; + + +/*g_message("%d: add_lmp_conversation(%p, %d, %d, %p) = ", pinfo->num, pinfo, dlsap, ttp, proto_dissector); */ + set_address(&srcaddr, irda_address_type, 1, &circuit_id); + dest = circuit_id ^ CMD_FRAME; + set_address(&destaddr, irda_address_type, 1, &dest); + + conv = find_conversation(pinfo->num, &destaddr, &srcaddr, ENDPOINT_NONE, dlsap, 0, NO_PORT_B); + if (conv) + { + lmp_conv = (lmp_conversation_t*)conversation_get_proto_data(conv, proto_irlmp); + while (1) + { + /* Does entry already exist? */ + if (lmp_conv->iap_result_frame == pinfo->num) + return; + + if (lmp_conv->pnext == NULL) + { + lmp_conv->pnext = wmem_new(wmem_file_scope(), lmp_conversation_t); + lmp_conv = lmp_conv->pnext; + break; + } + lmp_conv = lmp_conv->pnext; + } + } + else + { + conv = conversation_new(pinfo->num, &destaddr, &srcaddr, ENDPOINT_NONE, dlsap, 0, NO_PORT_B); + lmp_conv = wmem_new(wmem_file_scope(), lmp_conversation_t); + conversation_add_proto_data(conv, proto_irlmp, (void*)lmp_conv); + } + + lmp_conv->pnext = NULL; + lmp_conv->iap_result_frame = pinfo->num; + lmp_conv->ttp = ttp; + lmp_conv->dissector = dissector; + +/*g_message("%p\n", lmp_conv); */ +} + + +/* + * Dissect Negotiation Parameters + */ +static guint dissect_negotiation(tvbuff_t* tvb, proto_tree* tree, guint offset) +{ + guint n = 0; + proto_item* ti; + proto_tree* p_tree; + char buf[256]; + guint8 pv; + + while (tvb_reported_length_remaining(tvb, offset) > 0) + { + guint8 p_len = tvb_get_guint8(tvb, offset + 1); + + if (tree) + { + ti = proto_tree_add_item(tree, hf_negotiation_param, tvb, offset, p_len + 2, ENC_NA); + p_tree = proto_item_add_subtree(ti, ett_param[n]); + + pv = tvb_get_guint8(tvb, offset+2); + buf[0] = 0; + + switch (tvb_get_guint8(tvb, offset)) + { + case PI_BAUD_RATE: + proto_item_append_text(ti, ": Baud Rate ("); + + if (pv & 0x01) + g_strlcat(buf, ", 2400", 256); + if (pv & 0x02) + g_strlcat(buf, ", 9600", 256); + if (pv & 0x04) + g_strlcat(buf, ", 19200", 256); + if (pv & 0x08) + g_strlcat(buf, ", 38400", 256); + if (pv & 0x10) + g_strlcat(buf, ", 57600", 256); + if (pv & 0x20) + g_strlcat(buf, ", 115200", 256); + if (pv & 0x40) + g_strlcat(buf, ", 576000", 256); + if (pv & 0x80) + g_strlcat(buf, ", 1152000", 256); + if ((p_len > 1) && (tvb_get_guint8(tvb, offset+3) & 0x01)) + g_strlcat(buf, ", 4000000", 256); + + g_strlcat(buf, " bps)", 256); + + proto_item_append_text(ti, "%s", buf+2); + + break; + + case PI_MAX_TURN_TIME: + proto_item_append_text(ti, ": Maximum Turn Time ("); + + if (pv & 0x01) + g_strlcat(buf, ", 500", 256); + if (pv & 0x02) + g_strlcat(buf, ", 250", 256); + if (pv & 0x04) + g_strlcat(buf, ", 100", 256); + if (pv & 0x08) + g_strlcat(buf, ", 50", 256); + + g_strlcat(buf, " ms)", 256); + + proto_item_append_text(ti, "%s", buf+2); + + break; + + case PI_DATA_SIZE: + proto_item_append_text(ti, ": Data Size ("); + + if (pv & 0x01) + g_strlcat(buf, ", 64", 256); + if (pv & 0x02) + g_strlcat(buf, ", 128", 256); + if (pv & 0x04) + g_strlcat(buf, ", 256", 256); + if (pv & 0x08) + g_strlcat(buf, ", 512", 256); + if (pv & 0x10) + g_strlcat(buf, ", 1024", 256); + if (pv & 0x20) + g_strlcat(buf, ", 2048", 256); + + g_strlcat(buf, " bytes)", 256); + + proto_item_append_text(ti, "%s", buf+2); + + break; + + case PI_WINDOW_SIZE: + proto_item_append_text(ti, ": Window Size ("); + + if (pv & 0x01) + g_strlcat(buf, ", 1", 256); + if (pv & 0x02) + g_strlcat(buf, ", 2", 256); + if (pv & 0x04) + g_strlcat(buf, ", 3", 256); + if (pv & 0x08) + g_strlcat(buf, ", 4", 256); + if (pv & 0x10) + g_strlcat(buf, ", 5", 256); + if (pv & 0x20) + g_strlcat(buf, ", 6", 256); + if (pv & 0x40) + g_strlcat(buf, ", 7", 256); + + g_strlcat(buf, " frame window)", 256); + + proto_item_append_text(ti, "%s", buf+2); + + break; + + case PI_ADD_BOFS: + proto_item_append_text(ti, ": Additional BOFs ("); + + if (pv & 0x01) + g_strlcat(buf, ", 48", 256); + if (pv & 0x02) + g_strlcat(buf, ", 24", 256); + if (pv & 0x04) + g_strlcat(buf, ", 12", 256); + if (pv & 0x08) + g_strlcat(buf, ", 5", 256); + if (pv & 0x10) + g_strlcat(buf, ", 3", 256); + if (pv & 0x20) + g_strlcat(buf, ", 2", 256); + if (pv & 0x40) + g_strlcat(buf, ", 1", 256); + if (pv & 0x80) + g_strlcat(buf, ", 0", 256); + + g_strlcat(buf, " additional BOFs at 115200)", 256); + + proto_item_append_text(ti, "%s", buf+2); + + break; + + case PI_MIN_TURN_TIME: + proto_item_append_text(ti, ": Minimum Turn Time ("); + + if (pv & 0x01) + g_strlcat(buf, ", 10", 256); + if (pv & 0x02) + g_strlcat(buf, ", 5", 256); + if (pv & 0x04) + g_strlcat(buf, ", 1", 256); + if (pv & 0x08) + g_strlcat(buf, ", 0.5", 256); + if (pv & 0x10) + g_strlcat(buf, ", 0.1", 256); + if (pv & 0x20) + g_strlcat(buf, ", 0.05", 256); + if (pv & 0x40) + g_strlcat(buf, ", 0.01", 256); + if (pv & 0x80) + g_strlcat(buf, ", 0", 256); + + g_strlcat(buf, " ms)", 256); + + proto_item_append_text(ti, "%s", buf+2); + + break; + + case PI_LINK_DISC: + proto_item_append_text(ti, ": Link Disconnect/Threshold Time ("); + + if (pv & 0x01) + g_strlcat(buf, ", 3/0", 256); + if (pv & 0x02) + g_strlcat(buf, ", 8/3", 256); + if (pv & 0x04) + g_strlcat(buf, ", 12/3", 256); + if (pv & 0x08) + g_strlcat(buf, ", 16/3", 256); + if (pv & 0x10) + g_strlcat(buf, ", 20/3", 256); + if (pv & 0x20) + g_strlcat(buf, ", 25/3", 256); + if (pv & 0x40) + g_strlcat(buf, ", 30/3", 256); + if (pv & 0x80) + g_strlcat(buf, ", 40/3", 256); + + g_strlcat(buf, " s)", 256); + + proto_item_append_text(ti, "%s", buf+2); + + break; + + default: + proto_item_append_text(ti, ": unknown"); + } + } else + p_tree = NULL; + + offset = dissect_param_tuple(tvb, p_tree, offset); + n++; + } + + return offset; +} + + +/* + * Dissect XID packet + */ +static void dissect_xid(tvbuff_t* tvb, packet_info* pinfo, proto_tree* root, proto_tree* lap_tree, gboolean is_command) +{ + int offset = 0; + proto_item* ti = NULL; + proto_tree* i_tree = NULL; + proto_tree* flags_tree; + guint32 saddr, daddr; + guint8 s; + proto_tree* lmp_tree = NULL; + + if (lap_tree) + { + ti = proto_tree_add_item(lap_tree, hf_lap_i, tvb, offset, -1, ENC_NA); + i_tree = proto_item_add_subtree(ti, ett_lap_i); + + proto_tree_add_item(i_tree, hf_xid_ident, tvb, offset, 1, ENC_BIG_ENDIAN); + } + offset++; + + saddr = tvb_get_letohl(tvb, offset); + col_add_fstr(pinfo->cinfo, COL_DEF_SRC, "0x%08X", saddr); + if (lap_tree) + proto_tree_add_uint(i_tree, hf_xid_saddr, tvb, offset, 4, saddr); + offset += 4; + + daddr = tvb_get_letohl(tvb, offset); + col_add_fstr(pinfo->cinfo, COL_DEF_DST, "0x%08X", daddr); + if (lap_tree) + proto_tree_add_uint(i_tree, hf_xid_daddr, tvb, offset, 4, daddr); + offset += 4; + + if (lap_tree) + { + ti = proto_tree_add_item(i_tree, hf_xid_flags, tvb, offset, 1, ENC_BIG_ENDIAN); + flags_tree = proto_item_add_subtree(ti, ett_xid_flags); + proto_tree_add_item(flags_tree, hf_xid_s, tvb, offset, 1, ENC_BIG_ENDIAN); + proto_tree_add_item(flags_tree, hf_xid_conflict, tvb, offset, 1, ENC_BIG_ENDIAN); + } + offset++; + + if (is_command) + { + s = tvb_get_guint8(tvb, offset); + if (s == 0xFF) + col_append_str(pinfo->cinfo, COL_INFO, ", s=final"); + else + col_append_fstr(pinfo->cinfo, COL_INFO, ", s=%u", s); + if (lap_tree) + { + ti = proto_tree_add_uint(i_tree, hf_xid_slotnr, tvb, offset, 1, s); + if (s == 0xFF) + proto_item_append_text(ti, " (final)"); + } + } + offset++; + + if (lap_tree) + proto_tree_add_item(i_tree, hf_xid_version, tvb, offset, 1, ENC_BIG_ENDIAN); + offset++; + + if (lap_tree) + { + proto_item_set_end(lap_tree, tvb, offset); + proto_item_set_end(i_tree, tvb, offset); + } + + if (tvb_reported_length_remaining(tvb, offset) > 0) + { + guint hints_len; + guint8 hint1 = 0; + guint8 hint2 = 0; + char buf[23]; + + if (root) + { + ti = proto_tree_add_item(root, proto_irlmp, tvb, offset, -1, ENC_NA); + lmp_tree = proto_item_add_subtree(ti, ett_irlmp); + } + + for (hints_len = 0;;) + { + guint8 hint = tvb_get_guint8(tvb, offset + hints_len++); + + if (hints_len == 1) + hint1 = hint; + else if (hints_len == 2) + hint2 = hint; + + if ((hint & 0x80) == 0) + break; + } + + if (root) + { + ti = proto_tree_add_item(lmp_tree, hf_lmp_xid_hints, tvb, offset, hints_len, ENC_NA); + if ((hint1 | hint2) != 0) + { + char service_hints[256]; + + service_hints[0] = 0; + + if (hint1 & 0x01) + g_strlcat(service_hints, ", PnP Compatible", 256); + if (hint1 & 0x02) + g_strlcat(service_hints, ", PDA/Palmtop", 256); + if (hint1 & 0x04) + g_strlcat(service_hints, ", Computer", 256); + if (hint1 & 0x08) + g_strlcat(service_hints, ", Printer", 256); + if (hint1 & 0x10) + g_strlcat(service_hints, ", Modem", 256); + if (hint1 & 0x20) + g_strlcat(service_hints, ", Fax", 256); + if (hint1 & 0x40) + g_strlcat(service_hints, ", LAN Access", 256); + if (hint2 & 0x01) + g_strlcat(service_hints, ", Telephony", 256); + if (hint2 & 0x02) + g_strlcat(service_hints, ", File Server", 256); + if (hint2 & 0x04) + g_strlcat(service_hints, ", IrCOMM", 256); + if (hint2 & 0x20) + g_strlcat(service_hints, ", OBEX", 256); + + g_strlcat(service_hints, ")", 256); + service_hints[0] = ' '; + service_hints[1] = '('; + + proto_item_append_text(ti, "%s", service_hints); + } + } + offset += hints_len; + + if (tvb_reported_length_remaining(tvb, offset) > 0) + { + guint8 cset; + gint name_len; + + cset = tvb_get_guint8(tvb, offset); + if (root) + proto_tree_add_uint(lmp_tree, hf_lmp_xid_charset, tvb, offset, 1, cset); + offset++; + name_len = tvb_reported_length_remaining(tvb, offset); + if (name_len > 0) + { + if (cset == 0x00) + { + + if (name_len > 22) + name_len = 22; + tvb_memcpy(tvb, buf, offset, name_len); + buf[name_len] = 0; + col_append_str(pinfo->cinfo, COL_INFO, ", \""); + col_append_str(pinfo->cinfo, COL_INFO, buf); + col_append_str(pinfo->cinfo, COL_INFO, "\""); + if (root) + proto_tree_add_item(lmp_tree, hf_lmp_xid_name, tvb, offset, + -1, ENC_ASCII|ENC_NA); + } + else + { + if (root) + proto_tree_add_item(lmp_tree, hf_lmp_xid_name_no_ascii, tvb, offset, + -1, ENC_NA); + } + } + } + } +} + + +/* + * Dissect Log Messages + */ +static void dissect_log(tvbuff_t* tvb, packet_info* pinfo, proto_tree* root) +{ + /* Make entries in Protocol column on summary display */ + col_set_str(pinfo->cinfo, COL_PROTOCOL, "Log"); + + /* missed messages? */ + if (pinfo->pseudo_header->irda.pkttype == IRDA_MISSED_MSG) + { + col_set_str(pinfo->cinfo, COL_INFO, "WARNING: Missed one or more messages while capturing!"); + } + else + { + guint length; + char buf[256]; + + + length = tvb_captured_length(tvb); + if (length > sizeof(buf)-1) + length = sizeof(buf)-1; + tvb_memcpy(tvb, buf, 0, length); + buf[length] = 0; + if (length > 0 && buf[length-1] == '\n') + buf[length-1] = 0; + else if (length > 1 && buf[length-2] == '\n') + buf[length-2] = 0; + + col_add_str(pinfo->cinfo, COL_INFO, buf); + } + + if (root) + { + proto_item* ti = proto_tree_add_item(root, proto_log, tvb, 0, -1, ENC_NA); + proto_tree* tree = proto_item_add_subtree(ti, ett_log); + + if (pinfo->pseudo_header->irda.pkttype == IRDA_MISSED_MSG) + proto_tree_add_item(tree, hf_log_missed, tvb, 0, 0, ENC_NA); + else + proto_tree_add_item(tree, hf_log_msg, tvb, 0, -1, ENC_ASCII|ENC_NA); + } +} + + +/* + * Dissect IrLAP + */ +static void dissect_irlap(tvbuff_t* tvb, packet_info* pinfo, proto_tree* root) +{ + int offset = 0; + guint8 circuit_id, c; + gboolean is_response; + char addr[9]; + proto_item* ti = NULL; + proto_tree* tree = NULL; + proto_tree* i_tree = NULL; + guint32 saddr, daddr; + guint8 ca; + + /* Make entries in Protocol column on summary display */ + col_set_str(pinfo->cinfo, COL_PROTOCOL, "IrLAP"); + + /* Clear Info column */ + col_clear(pinfo->cinfo, COL_INFO); + + /* set direction column */ + switch (pinfo->pseudo_header->irda.pkttype) + { + case IRDA_OUTGOING: + col_set_str(pinfo->cinfo, COL_IF_DIR, "Out"); + break; + + case IRDA_INCOMING: + col_set_str(pinfo->cinfo, COL_IF_DIR, "In"); + break; + } + + /* decode values used for demuxing */ + circuit_id = tvb_get_guint8(tvb, 0); + + /* initially set address columns to connection address */ + g_snprintf(addr, sizeof(addr)-1, "0x%02X", circuit_id >> 1); + col_add_str(pinfo->cinfo, COL_DEF_SRC, addr); + col_add_str(pinfo->cinfo, COL_DEF_DST, addr); + + if (root) + { + proto_tree* a_tree; + proto_item* addr_item; + + /* create display subtree for the protocol */ + ti = proto_tree_add_item(root, proto_irlap, tvb, 0, -1, ENC_NA); + tree = proto_item_add_subtree(ti, ett_irlap); + + /* create subtree for the address field */ + ti = proto_tree_add_item(tree, hf_lap_a, tvb, offset, 1, ENC_BIG_ENDIAN); + a_tree = proto_item_add_subtree(ti, ett_lap_a); + proto_tree_add_item(a_tree, hf_lap_a_cr, tvb, offset, 1, ENC_BIG_ENDIAN); + addr_item = proto_tree_add_item(a_tree, hf_lap_a_address, tvb, offset, 1, ENC_BIG_ENDIAN); + switch (circuit_id & ~CMD_FRAME) + { + case 0: + proto_item_append_text(addr_item, " (NULL Address)"); + break; + case 0xFE: + proto_item_append_text(addr_item, " (Broadcast)"); + break; + } + } + is_response = ((circuit_id & CMD_FRAME) == 0); + offset++; + + /* process the control field */ + c = dissect_xdlc_control(tvb, 1, pinfo, tree, hf_lap_c, + ett_lap_c, &irlap_cf_items, NULL, lap_c_u_cmd_abbr_vals, + lap_c_u_rsp_abbr_vals, is_response, FALSE, FALSE); + offset++; + + if ((c & XDLC_I_MASK) == XDLC_I) { + /* I frame */ + proto_item_set_len(tree, offset); + tvb = tvb_new_subset_remaining(tvb, offset); + dissect_irlmp(tvb, pinfo, root, circuit_id); + return; + } + + if ((c & 0x03) == XDLC_U) { + /* U frame */ + switch (c & XDLC_U_MODIFIER_MASK) + { + case XDLC_SNRM: + if (root) + { + ti = proto_tree_add_item(tree, hf_lap_i, tvb, offset, -1, ENC_NA); + i_tree = proto_item_add_subtree(ti, ett_lap_i); + } + + saddr = tvb_get_letohl(tvb, offset); + if (!is_response) + { + col_add_fstr(pinfo->cinfo, COL_DEF_SRC, "0x%08X", saddr); + } + if (root) + proto_tree_add_uint(i_tree, hf_snrm_saddr, tvb, offset, 4, saddr); + offset += 4; + + daddr = tvb_get_letohl(tvb, offset); + if (!is_response) + { + col_add_fstr(pinfo->cinfo, COL_DEF_DST, "0x%08X", daddr); + } + if (root) + proto_tree_add_uint(i_tree, hf_snrm_daddr, tvb, offset, 4, daddr); + offset += 4; + + ca = tvb_get_guint8(tvb, offset); + if (!is_response) + { + col_append_fstr(pinfo->cinfo, COL_INFO, ", ca=0x%02X", + ca >> 1); + } + if (root) + proto_tree_add_uint(i_tree, hf_snrm_ca, tvb, offset, 1, ca >> 1); + offset++; + + offset = dissect_negotiation(tvb, i_tree, offset); + if (root) + proto_item_set_end(ti, tvb, offset); + break; + + case IRDA_XID_CMD: + tvb = tvb_new_subset_remaining(tvb, offset); + dissect_xid(tvb, pinfo, root, tree, TRUE); + return; + + case XDLC_UA: + if (tvb_reported_length_remaining(tvb, offset) > 0) + { + if (root) + { + ti = proto_tree_add_item(tree, hf_lap_i, tvb, offset, -1, ENC_NA); + i_tree = proto_item_add_subtree(ti, ett_lap_i); + } + + saddr = tvb_get_letohl(tvb, offset); + col_add_fstr(pinfo->cinfo, COL_DEF_SRC, "0x%08X", saddr); + if (root) + proto_tree_add_uint(i_tree, hf_ua_saddr, tvb, offset, 4, saddr); + offset += 4; + + daddr = tvb_get_letohl(tvb, offset); + col_add_fstr(pinfo->cinfo, COL_DEF_DST, "0x%08X", daddr); + if (root) + proto_tree_add_uint(i_tree, hf_ua_daddr, tvb, offset, 4, daddr); + offset += 4; + + offset = dissect_negotiation(tvb, i_tree, offset); + if (root) + proto_item_set_end(ti, tvb, offset); + } + break; + + case XDLC_XID: + tvb = tvb_new_subset_remaining(tvb, offset); + dissect_xid(tvb, pinfo, root, tree, FALSE); + return; + } + } + + /* If any bytes remain, send it to the generic data dissector */ + if (tvb_reported_length_remaining(tvb, offset) > 0) + { + tvb = tvb_new_subset_remaining(tvb, offset); + call_data_dissector(tvb, pinfo, root); + } +} + + +/* + * Dissect IrDA protocol + */ +static int dissect_irda(tvbuff_t* tvb, packet_info* pinfo, proto_tree* root, void* data _U_) +{ + /* check if log message */ + if ((pinfo->pseudo_header->irda.pkttype & IRDA_CLASS_MASK) == IRDA_CLASS_LOG) + { + dissect_log(tvb, pinfo, root); + return tvb_captured_length(tvb); + } + + + dissect_irlap(tvb, pinfo, root); + return tvb_captured_length(tvb); +} + +static int irda_addr_to_str(const address* addr, gchar *buf, int buf_len _U_) +{ + const guint8 *addrdata = (const guint8 *)addr->data; + + guint32_to_str_buf(*addrdata, buf, buf_len); + return (int)strlen(buf); +} + +static int irda_addr_str_len(const address* addr _U_) +{ + return 11; /* Leaves required space (10 bytes) for uint_to_str_back() */ +} + +static const char* irda_col_filter_str(const address* addr _U_, gboolean is_src _U_) +{ + return "irlap.a"; +} + +static int irda_addr_len(void) +{ + return 1; +} + +/* + * Register the protocol with Wireshark + * This format is required because a script is used to build the C function + * that calls all the protocol registrations. + */ +void proto_register_irda(void) +{ + guint i; + + /* Setup list of header fields */ + static hf_register_info hf_lap[] = { + { &hf_lap_a, + { "Address Field", "irlap.a", + FT_UINT8, BASE_HEX, NULL, 0, + NULL, HFILL }}, + { &hf_lap_a_cr, + { "C/R", "irlap.a.cr", + FT_BOOLEAN, 8, TFS(&lap_cr_vals), CMD_FRAME, + NULL, HFILL }}, + { &hf_lap_a_address, + { "Address", "irlap.a.address", + FT_UINT8, BASE_HEX, NULL, ~CMD_FRAME, + NULL, HFILL }}, + { &hf_lap_c, + { "Control Field", "irlap.c", + FT_UINT8, BASE_HEX, NULL, 0, + NULL, HFILL }}, + { &hf_lap_c_nr, + { "N(R)", "irlap.c.n_r", + FT_UINT8, BASE_DEC, NULL, XDLC_N_R_MASK, + NULL, HFILL }}, + { &hf_lap_c_ns, + { "N(S)", "irlap.c.n_s", + FT_UINT8, BASE_DEC, NULL, XDLC_N_S_MASK, + NULL, HFILL }}, + { &hf_lap_c_p, + { "Poll", "irlap.c.p", + FT_BOOLEAN, 8, TFS(&set_notset), XDLC_P_F, + NULL, HFILL }}, + { &hf_lap_c_f, + { "Final", "irlap.c.f", + FT_BOOLEAN, 8, TFS(&set_notset), XDLC_P_F, + NULL, HFILL }}, + { &hf_lap_c_s, + { "Supervisory frame type", "irlap.c.s_ftype", + FT_UINT8, BASE_HEX, VALS(lap_c_s_vals), XDLC_S_FTYPE_MASK, + NULL, HFILL }}, + { &hf_lap_c_u_cmd, + { "Command", "irlap.c.u_modifier_cmd", + FT_UINT8, BASE_HEX, VALS(lap_c_u_cmd_vals), XDLC_U_MODIFIER_MASK, + NULL, HFILL }}, + { &hf_lap_c_u_rsp, + { "Response", "irlap.c.u_modifier_resp", + FT_UINT8, BASE_HEX, VALS(lap_c_u_rsp_vals), XDLC_U_MODIFIER_MASK, + NULL, HFILL }}, + { &hf_lap_c_i, + { "Frame Type", "irlap.c.ftype", + FT_UINT8, BASE_HEX, VALS(lap_c_ftype_vals), XDLC_I_MASK, + NULL, HFILL }}, + { &hf_lap_c_s_u, + { "Frame Type", "irlap.c.ftype", + FT_UINT8, BASE_HEX, VALS(lap_c_ftype_vals), XDLC_S_U_MASK, + NULL, HFILL }}, + { &hf_lap_i, + { "Information Field", "irlap.i", + FT_NONE, BASE_NONE, NULL, 0, + NULL, HFILL }}, + { &hf_snrm_saddr, + { "Source Device Address", "irlap.snrm.saddr", + FT_UINT32, BASE_HEX, NULL, 0, + NULL, HFILL }}, + { &hf_snrm_daddr, + { "Destination Device Address", "irlap.snrm.daddr", + FT_UINT32, BASE_HEX, NULL, 0, + NULL, HFILL }}, + { &hf_snrm_ca, + { "Connection Address", "irlap.snrm.ca", + FT_UINT8, BASE_HEX, NULL, 0, + NULL, HFILL }}, + { &hf_negotiation_param, + { "Negotiation Parameter", "irlap.negotiation", + FT_NONE, BASE_NONE, NULL, 0, + NULL, HFILL }}, + { &hf_param_pi, + { "Parameter Identifier", "irlap.pi", + FT_UINT8, BASE_HEX, NULL, 0, + NULL, HFILL }}, + { &hf_param_pl, + { "Parameter Length", "irlap.pl", + FT_UINT8, BASE_HEX, NULL, 0, + NULL, HFILL }}, + { &hf_param_pv, + { "Parameter Value", "irlap.pv", + FT_BYTES, BASE_NONE, NULL, 0, + NULL, HFILL }}, + { &hf_ua_saddr, + { "Source Device Address", "irlap.ua.saddr", + FT_UINT32, BASE_HEX, NULL, 0, + NULL, HFILL }}, + { &hf_ua_daddr, + { "Destination Device Address", "irlap.ua.daddr", + FT_UINT32, BASE_HEX, NULL, 0, + NULL, HFILL }}, + { &hf_xid_ident, + { "Format Identifier", "irlap.xid.fi", + FT_UINT8, BASE_HEX, NULL, 0, + NULL, HFILL }}, + { &hf_xid_saddr, + { "Source Device Address", "irlap.xid.saddr", + FT_UINT32, BASE_HEX, NULL, 0, + NULL, HFILL }}, + { &hf_xid_daddr, + { "Destination Device Address", "irlap.xid.daddr", + FT_UINT32, BASE_HEX, NULL, 0, + NULL, HFILL }}, + { &hf_xid_flags, + { "Discovery Flags", "irlap.xid.flags", + FT_UINT8, BASE_HEX, NULL, 0, + NULL, HFILL }}, + { &hf_xid_s, + { "Number of Slots", "irlap.xid.s", + FT_UINT8, BASE_DEC, VALS(xid_slot_numbers), S_MASK, + NULL, HFILL }}, + { &hf_xid_conflict, + { "Conflict", "irlap.xid.conflict", + FT_BOOLEAN, 8, TFS(&set_notset), CONFLICT, + NULL, HFILL }}, + { &hf_xid_slotnr, + { "Slot Number", "irlap.xid.slotnr", + FT_UINT8, BASE_DEC, NULL, 0, + NULL, HFILL }}, + { &hf_xid_version, + { "Version Number", "irlap.xid.version", + FT_UINT8, BASE_HEX, NULL, 0, + NULL, HFILL }} + }; + + static hf_register_info hf_log[] = { + { &hf_log_msg, + { "Message", "log.msg", + FT_STRING, BASE_NONE, NULL, 0, + NULL, HFILL }}, + { &hf_log_missed, + { "WARNING: Missed one or more messages while capturing!", "log.missed", + FT_NONE, BASE_NONE, NULL, 0, + NULL, HFILL }} + }; + + static hf_register_info hf_lmp[] = { + { &hf_lmp_xid_hints, + { "Service Hints", "irlmp.xid.hints", + FT_BYTES, BASE_NONE, NULL, 0, + NULL, HFILL }}, + { &hf_lmp_xid_charset, + { "Character Set", "irlmp.xid.charset", + FT_UINT8, BASE_HEX, NULL, 0, + NULL, HFILL }}, + { &hf_lmp_xid_name, + { "Device Nickname", "irlmp.xid.name", + FT_STRING, BASE_NONE, NULL, 0, + NULL, HFILL }}, + { &hf_lmp_xid_name_no_ascii, + { "Device Nickname (unsupported character set)", "irlmp.xid.name.no_ascii", + FT_BYTES, BASE_NONE, NULL, 0, + NULL, HFILL }}, + { &hf_lmp_dst, + { "Destination", "irlmp.dst", + FT_UINT8, BASE_HEX, NULL, 0, + NULL, HFILL }}, + { &hf_lmp_dst_control, + { "Control Bit", "irlmp.dst.c", + FT_BOOLEAN, 8, TFS(&set_notset), CONTROL_BIT, + NULL, HFILL }}, + { &hf_lmp_dst_lsap, + { "Destination LSAP", "irlmp.dst.lsap", + FT_UINT8, BASE_DEC, NULL, ~CONTROL_BIT, + NULL, HFILL }}, + { &hf_lmp_src, + { "Source", "irlmp.src", + FT_UINT8, BASE_HEX, NULL, 0, + NULL, HFILL }}, + { &hf_lmp_src_r, + { "reserved", "irlmp.src.r", + FT_UINT8, BASE_DEC, NULL, RESERVED_BIT, + NULL, HFILL }}, + { &hf_lmp_src_lsap, + { "Source LSAP", "irlmp.src.lsap", + FT_UINT8, BASE_DEC, NULL, ~RESERVED_BIT, + NULL, HFILL }}, + { &hf_lmp_opcode, + { "Opcode", "irlmp.opcode", + FT_UINT8, BASE_HEX, VALS(lmp_opcode_vals), 0x0, + NULL, HFILL }}, + { &hf_lmp_rsvd, + { "Reserved", "irlmp.rsvd", + FT_UINT8, BASE_HEX, NULL, 0x0, + NULL, HFILL }}, + { &hf_lmp_reason, + { "Reason", "irlmp.reason", + FT_UINT8, BASE_HEX, VALS(lmp_reason_vals), 0x0, + NULL, HFILL }}, + { &hf_lmp_mode, + { "Mode", "irlmp.mode", + FT_UINT8, BASE_HEX, VALS(lmp_mode_vals), 0x0, + NULL, HFILL }}, + { &hf_lmp_status, + { "Status", "irlmp.status", + FT_UINT8, BASE_HEX, VALS(lmp_status_vals), 0x0, + NULL, HFILL }} + }; + + static hf_register_info hf_iap[] = { + { &hf_iap_ctl, + { "Control Field", "iap.ctl", + FT_UINT8, BASE_HEX, NULL, 0, + NULL, HFILL }}, + { &hf_iap_ctl_lst, + { "Last Frame", "iap.ctl.lst", + FT_BOOLEAN, 8, TFS(&set_notset), IAP_LST, + NULL, HFILL }}, + { &hf_iap_ctl_ack, + { "Acknowledge", "iap.ctl.ack", + FT_BOOLEAN, 8, TFS(&set_notset), IAP_ACK, + NULL, HFILL }}, + { &hf_iap_ctl_opcode, + { "Opcode", "iap.ctl.opcode", + FT_UINT8, BASE_HEX, VALS(iap_opcode_vals), IAP_OP, + NULL, HFILL }}, + { &hf_iap_class_name, + { "Class Name", "iap.classname", + FT_UINT_STRING, BASE_NONE, NULL, 0x0, + NULL, HFILL }}, + { &hf_iap_attr_name, + { "Attribute Name", "iap.attrname", + FT_UINT_STRING, BASE_NONE, NULL, 0x0, + NULL, HFILL }}, + { &hf_iap_return, + { "Return", "iap.return", + FT_UINT8, BASE_HEX, VALS(iap_return_vals), 0x0, + NULL, HFILL }}, + { &hf_iap_list_len, + { "List Length", "iap.listlen", + FT_UINT16, BASE_DEC, NULL, 0x0, + NULL, HFILL }}, + { &hf_iap_list_entry, + { "List Entry", "iap.listentry", + FT_NONE, BASE_NONE, NULL, 0x0, + NULL, HFILL }}, + { &hf_iap_obj_id, + { "Object Identifier", "iap.objectid", + FT_UINT16, BASE_HEX, NULL, 0x0, + NULL, HFILL }}, + { &hf_iap_attr_type, + { "Type", "iap.attrtype", + FT_UINT8, BASE_DEC, VALS(iap_attr_type_vals), 0x0, + NULL, HFILL }}, + { &hf_iap_int, + { "Value", "iap.int", + FT_INT32, BASE_DEC, NULL, 0x0, + NULL, HFILL }}, + { &hf_iap_seq_len, + { "Sequence Length", "iap.seqlen", + FT_UINT16, BASE_DEC, NULL, 0x0, + NULL, HFILL }}, + { &hf_iap_oct_seq, + { "Sequence", "iap.octseq", + FT_BYTES, BASE_NONE, NULL, 0x0, + NULL, HFILL }}, + { &hf_iap_char_set, + { "Character Set", "iap.charset", + FT_UINT8, BASE_HEX, NULL, 0x0, + NULL, HFILL }}, + { &hf_iap_string, + { "String", "iap.string", + FT_UINT_STRING, BASE_NONE, NULL, 0x0, + NULL, HFILL }}, + { &hf_iap_invaloctet, + { "Malformed IAP result: \"", "iap.invaloctet", + FT_NONE, BASE_NONE, NULL, 0, + NULL, HFILL }}, + { &hf_iap_invallsap, + { "Malformed IAP result: \"", "iap.invallsap", + FT_NONE, BASE_NONE, NULL, 0, + NULL, HFILL }} + }; + + static hf_register_info hf_ttp[] = { + { &hf_ttp_p, + { "Parameter Bit", "ttp.p", + FT_BOOLEAN, 8, TFS(&set_notset), TTP_PARAMETERS, + NULL, HFILL }}, + { &hf_ttp_icredit, + { "Initial Credit", "ttp.icredit", + FT_UINT8, BASE_DEC, NULL, ~TTP_PARAMETERS, + NULL, HFILL }}, + { &hf_ttp_m, + { "More Bit", "ttp.m", + FT_BOOLEAN, 8, TFS(&set_notset), TTP_MORE, + NULL, HFILL }}, + { &hf_ttp_dcredit, + { "Delta Credit", "ttp.dcredit", + FT_UINT8, BASE_DEC, NULL, ~TTP_MORE, + NULL, HFILL }} + }; + + /* Setup protocol subtree arrays */ + static gint* ett[] = { + &ett_irlap, + &ett_lap_a, + &ett_lap_c, + &ett_lap_i, + &ett_xid_flags, + &ett_log, + &ett_irlmp, + &ett_lmp_dst, + &ett_lmp_src, + &ett_iap, + &ett_iap_ctl, + &ett_ttp + }; + + gint* ett_p[MAX_PARAMETERS]; + gint* ett_iap_e[MAX_IAP_ENTRIES]; + + + /* Register protocol names and descriptions */ + proto_irlap = proto_register_protocol("IrDA Link Access Protocol", "IrLAP", "irlap"); + proto_log = proto_register_protocol("Log Message", "Log", "log"); + proto_irlmp = proto_register_protocol("IrDA Link Management Protocol", "IrLMP", "irlmp"); + proto_iap = proto_register_protocol("Information Access Protocol", "IAP", "iap"); + proto_ttp = proto_register_protocol("Tiny Transport Protocol", "TTP", "ttp"); + + /* Register the dissector */ + irda_handle = register_dissector("irda", dissect_irda, proto_irlap); + + /* Required function calls to register the header fields */ + proto_register_field_array(proto_irlap, hf_lap, array_length(hf_lap)); + proto_register_field_array(proto_log, hf_log, array_length(hf_log)); + proto_register_field_array(proto_irlmp, hf_lmp, array_length(hf_lmp)); + proto_register_field_array(proto_iap, hf_iap, array_length(hf_iap)); + proto_register_field_array(proto_ttp, hf_ttp, array_length(hf_ttp)); + + /* Register subtrees */ + proto_register_subtree_array(ett, array_length(ett)); + for (i = 0; i < MAX_PARAMETERS; i++) + { + ett_param[i] = -1; + ett_p[i] = &ett_param[i]; + } + proto_register_subtree_array(ett_p, MAX_PARAMETERS); + for (i = 0; i < MAX_IAP_ENTRIES; i++) + { + ett_iap_entry[i] = -1; + ett_iap_e[i] = &ett_iap_entry[i]; + } + proto_register_subtree_array(ett_iap_e, MAX_IAP_ENTRIES); + + irda_address_type = address_type_dissector_register("AT_IRDA", "IRDA Address", irda_addr_to_str, irda_addr_str_len, NULL, irda_col_filter_str, irda_addr_len, NULL, NULL); +} + + +/* If this dissector uses sub-dissector registration add a registration routine. + This format is required because a script is used to find these routines and + create the code that calls these routines. +*/ + +void proto_reg_handoff_irda(void) +{ + dissector_add_uint("wtap_encap", WTAP_ENCAP_IRDA, irda_handle); + dissector_add_uint("sll.ltype", LINUX_SLL_P_IRDA_LAP, irda_handle); +} + +/* + * Editor modelines - http://www.wireshark.org/tools/modelines.html + * + * Local variables: + * c-basic-offset: 4 + * tab-width: 8 + * indent-tabs-mode: nil + * End: + * + * vi: set shiftwidth=4 tabstop=8 expandtab: + * :indentSize=4:tabSize=8:noTabs=true: + */ |