/* packet-lbtru.c * Routines for LBT-RU Packet dissection * * Copyright (c) 2005-2014 Informatica Corporation. All Rights Reserved. * * Wireshark - 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ #include "config.h" #include #include #include #include #include #include #include #include "packet-lbm.h" #include "packet-lbtru.h" void proto_register_lbtru(void); void proto_reg_handoff_lbtru(void); /* Protocol handle */ static int proto_lbtru = -1; /* Dissector handle */ static dissector_handle_t lbtru_dissector_handle; /* Tap handle */ static int lbtru_tap_handle = -1; /*----------------------------------------------------------------------------*/ /* LBT-RU transport management. */ /*----------------------------------------------------------------------------*/ static const address lbtru_null_address = ADDRESS_INIT_NONE; static lbtru_transport_t * lbtru_transport_find(const address * source_address, guint16 source_port, guint32 session_id, guint32 frame) { lbtru_transport_t * entry = NULL; wmem_tree_t * session_tree = NULL; conversation_t * conv = NULL; conv = find_conversation(frame, source_address, &lbtru_null_address, PT_UDP, source_port, 0, 0); if (conv != NULL) { if (frame != 0) { if (conv->setup_frame == 0) { conv->setup_frame = frame; } if (frame > conv->last_frame) { conv->last_frame = frame; } } session_tree = (wmem_tree_t *) conversation_get_proto_data(conv, proto_lbtru); if (session_tree != NULL) { entry = (lbtru_transport_t *) wmem_tree_lookup32(session_tree, session_id); } } return (entry); } lbtru_transport_t * lbtru_transport_add(const address * source_address, guint16 source_port, guint32 session_id, guint32 frame) { lbtru_transport_t * entry = NULL; wmem_tree_t * session_tree = NULL; conversation_t * conv = NULL; conv = find_conversation(frame, source_address, &lbtru_null_address, PT_UDP, source_port, 0, 0); if (conv == NULL) { conv = conversation_new(frame, source_address, &lbtru_null_address, PT_UDP, source_port, 0, 0); } if (frame != 0) { if (conv->setup_frame == 0) { conv->setup_frame = frame; } if (frame > conv->last_frame) { conv->last_frame = frame; } } session_tree = (wmem_tree_t *) conversation_get_proto_data(conv, proto_lbtru); if (session_tree == NULL) { session_tree = wmem_tree_new(wmem_file_scope()); conversation_add_proto_data(conv, proto_lbtru, (void *)session_tree); } entry = (lbtru_transport_t *) wmem_tree_lookup32(session_tree, session_id); if (entry != NULL) { return (entry); } entry = wmem_new(wmem_file_scope(), lbtru_transport_t); copy_address_wmem(wmem_file_scope(), &(entry->source_address), source_address); entry->source_port = source_port; entry->session_id = session_id; entry->channel = lbm_channel_assign(LBM_CHANNEL_TRANSPORT_LBTRU); entry->next_client_id = 1; entry->client_list = wmem_list_new(wmem_file_scope()); wmem_tree_insert32(session_tree, session_id, (void *) entry); return (entry); } static lbtru_client_transport_t * lbtru_client_transport_find(lbtru_transport_t * transport, const address * receiver_address, guint16 receiver_port, guint32 frame) { lbtru_client_transport_t * entry = NULL; conversation_t * client_conv = NULL; if (transport == NULL) { return (NULL); } client_conv = find_conversation(frame, &(transport->source_address), receiver_address, PT_UDP, transport->source_port, receiver_port, 0); if (client_conv != NULL) { wmem_tree_t * session_tree = NULL; session_tree = (wmem_tree_t *) conversation_get_proto_data(client_conv, proto_lbtru); if (session_tree != NULL) { entry = (lbtru_client_transport_t *) wmem_tree_lookup32(session_tree, transport->session_id); } } return (entry); } static lbtru_client_transport_t * lbtru_client_transport_add(lbtru_transport_t * transport, const address * receiver_address, guint16 receiver_port, guint32 frame) { lbtru_client_transport_t * entry = NULL; conversation_t * client_conv = NULL; wmem_tree_t * session_tree = NULL; if (transport == NULL) { return (NULL); } entry = lbtru_client_transport_find(transport, receiver_address, receiver_port, frame); if (entry != NULL) { return (entry); } entry = wmem_new0(wmem_file_scope(), lbtru_client_transport_t); copy_address_wmem(wmem_file_scope(), &(entry->receiver_address), receiver_address); entry->receiver_port = receiver_port; entry->transport = transport; entry->id = transport->next_client_id++; entry->frame = wmem_tree_new(wmem_file_scope()); entry->last_frame = NULL; entry->last_data_frame = NULL; entry->last_sm_frame = NULL; entry->last_nak_frame = NULL; entry->last_ncf_frame = NULL; entry->last_ack_frame = NULL; entry->last_creq_frame = NULL; entry->last_rst_frame = NULL; entry->data_sqn = wmem_tree_new(wmem_file_scope()); entry->sm_sqn = wmem_tree_new(wmem_file_scope()); entry->data_high_sqn = 0; entry->sm_high_sqn = 0; /* See if a conversation for this address/port pair exists. */ client_conv = find_conversation(frame, &(transport->source_address), receiver_address, PT_UDP, transport->source_port, receiver_port, 0); if (client_conv == NULL) { client_conv = conversation_new(frame, &(transport->source_address), receiver_address, PT_UDP, transport->source_port, receiver_port, 0); session_tree = wmem_tree_new(wmem_file_scope()); conversation_add_proto_data(client_conv, proto_lbtru, (void *) session_tree); } else { session_tree = (wmem_tree_t *) conversation_get_proto_data(client_conv, proto_lbtru); if (session_tree == NULL) { session_tree = wmem_tree_new(wmem_file_scope()); conversation_add_proto_data(client_conv, proto_lbtru, (void *) session_tree); } } wmem_tree_insert32(session_tree, transport->session_id, (void *) entry); /* Add this client to the transport. */ wmem_list_append(transport->client_list, (void *) entry); return (entry); } static lbm_transport_sqn_t * lbtru_client_transport_sqn_find(lbtru_client_transport_t * client, guint8 type, guint32 sqn) { lbm_transport_sqn_t * sqn_entry = NULL; switch (type) { case LBTRU_PACKET_TYPE_DATA: sqn_entry = (lbm_transport_sqn_t *) wmem_tree_lookup32(client->data_sqn, sqn); break; case LBTRU_PACKET_TYPE_SM: sqn_entry = (lbm_transport_sqn_t *) wmem_tree_lookup32(client->sm_sqn, sqn); break; case LBTRU_PACKET_TYPE_NAK: case LBTRU_PACKET_TYPE_NCF: case LBTRU_PACKET_TYPE_ACK: case LBTRU_PACKET_TYPE_CREQ: case LBTRU_PACKET_TYPE_RST: default: sqn_entry = NULL; break; } return (sqn_entry); } static lbm_transport_sqn_t * lbtru_client_transport_sqn_add(lbtru_client_transport_t * client, lbm_transport_frame_t * frame) { wmem_tree_t * sqn_list = NULL; lbm_transport_sqn_t * sqn_entry = NULL; switch (frame->type) { case LBTRU_PACKET_TYPE_DATA: sqn_list = client->data_sqn; break; case LBTRU_PACKET_TYPE_SM: sqn_list = client->sm_sqn; break; case LBTRU_PACKET_TYPE_NAK: case LBTRU_PACKET_TYPE_NCF: case LBTRU_PACKET_TYPE_ACK: case LBTRU_PACKET_TYPE_CREQ: case LBTRU_PACKET_TYPE_RST: default: return (NULL); break; } /* Add the sqn. */ sqn_entry = lbm_transport_sqn_add(sqn_list, frame); return (sqn_entry); } static lbm_transport_frame_t * lbtru_client_transport_frame_find(lbtru_client_transport_t * client, guint32 frame) { return ((lbm_transport_frame_t *) wmem_tree_lookup32(client->frame, frame)); } static lbm_transport_frame_t * lbtru_client_transport_frame_add(lbtru_client_transport_t * client, guint8 type, guint32 frame, guint32 sqn, gboolean retransmission) { lbm_transport_sqn_t * dup_sqn_entry = NULL; lbm_transport_frame_t * frame_entry = NULL; /* Locate the frame. */ frame_entry = lbtru_client_transport_frame_find(client, frame); if (frame_entry != NULL) { return (frame_entry); } frame_entry = lbm_transport_frame_add(client->frame, type, frame, sqn, retransmission); if (client->last_frame != NULL) { frame_entry->previous_frame = client->last_frame->frame; client->last_frame->next_frame = frame; } client->last_frame = frame_entry; switch (type) { case LBTRU_PACKET_TYPE_DATA: if (client->last_data_frame != NULL) { frame_entry->previous_type_frame = client->last_data_frame->frame; client->last_data_frame->next_type_frame = frame; /* Ideally, this frame's sqn is 1 more than the highest data sqn seen */ if (frame_entry->sqn <= client->data_high_sqn) { dup_sqn_entry = lbtru_client_transport_sqn_find(client, type, frame_entry->sqn); if (!frame_entry->retransmission) { /* Out of order */ if (dup_sqn_entry != NULL) { frame_entry->duplicate = TRUE; } if (frame_entry->sqn != client->data_high_sqn) { frame_entry->ooo_gap = client->data_high_sqn - frame_entry->sqn; } } } else { if (!frame_entry->retransmission) { if (frame_entry->sqn != (client->data_high_sqn + 1)) { /* Gap */ frame_entry->sqn_gap = frame_entry->sqn - (client->last_data_frame->sqn + 1); } } } } if ((frame_entry->sqn > client->data_high_sqn) && !frame_entry->retransmission) { client->data_high_sqn = frame_entry->sqn; } client->last_data_frame = frame_entry; break; case LBTRU_PACKET_TYPE_SM: if (client->last_sm_frame != NULL) { frame_entry->previous_type_frame = client->last_sm_frame->frame; client->last_sm_frame->next_type_frame = frame; /* Ideally, this frame's sqn is 1 more than the highest SM sqn seen */ if (frame_entry->sqn <= client->sm_high_sqn) { /* Out of order */ dup_sqn_entry = lbtru_client_transport_sqn_find(client, type, frame_entry->sqn); if (dup_sqn_entry != NULL) { frame_entry->duplicate = TRUE; } if (frame_entry->sqn != client->sm_high_sqn) { frame_entry->ooo_gap = client->sm_high_sqn - frame_entry->sqn; } } else { if (frame_entry->sqn != (client->sm_high_sqn + 1)) { /* Gap */ frame_entry->sqn_gap = frame_entry->sqn - (client->sm_high_sqn + 1); } } } if (frame_entry->sqn > client->sm_high_sqn) { client->sm_high_sqn = frame_entry->sqn; } client->last_sm_frame = frame_entry; break; case LBTRU_PACKET_TYPE_NAK: if (client->last_nak_frame != NULL) { frame_entry->previous_type_frame = client->last_nak_frame->frame; client->last_nak_frame->next_type_frame = frame; } client->last_nak_frame = frame_entry; break; case LBTRU_PACKET_TYPE_NCF: if (client->last_ncf_frame != NULL) { frame_entry->previous_type_frame = client->last_ncf_frame->frame; client->last_ncf_frame->next_type_frame = frame; } client->last_ncf_frame = frame_entry; break; case LBTRU_PACKET_TYPE_ACK: if (client->last_ack_frame != NULL) { frame_entry->previous_type_frame = client->last_ack_frame->frame; client->last_ack_frame->next_type_frame = frame; } client->last_ack_frame = frame_entry; break; case LBTRU_PACKET_TYPE_CREQ: if (client->last_creq_frame != NULL) { frame_entry->previous_type_frame = client->last_creq_frame->frame; client->last_creq_frame->next_type_frame = frame; } client->last_creq_frame = frame_entry; break; case LBTRU_PACKET_TYPE_RST: if (client->last_rst_frame != NULL) { frame_entry->previous_type_frame = client->last_rst_frame->frame; client->last_rst_frame->next_type_frame = frame; } client->last_rst_frame = frame_entry; break; } /* Add the sqn. */ (void)lbtru_client_transport_sqn_add(client, frame_entry); return (frame_entry); } static char * lbtru_transport_source_string_format(const address * source_address, guint16 source_port, guint32 session_id) { /* Returns a packet-scoped string. */ char * bufptr = NULL; if (session_id == 0) { bufptr = wmem_strdup_printf(wmem_packet_scope(), "LBT-RU:%s:%" G_GUINT16_FORMAT, address_to_str(wmem_packet_scope(), source_address), source_port); } else { bufptr = wmem_strdup_printf(wmem_packet_scope(), "LBT-RU:%s:%" G_GUINT16_FORMAT ":%08x", address_to_str(wmem_packet_scope(), source_address), source_port, session_id); } return (bufptr); } char * lbtru_transport_source_string(const address * source_address, guint16 source_port, guint32 session_id) { /* Returns a file-scoped string. */ return (wmem_strdup(wmem_file_scope(), lbtru_transport_source_string_format(source_address, source_port, session_id))); } static char * lbtru_transport_source_string_transport(lbtru_transport_t * transport) { /* Returns a packet-scoped string. */ return (lbtru_transport_source_string(&(transport->source_address), transport->source_port, transport->session_id)); } /*----------------------------------------------------------------------------*/ /* Packet layouts. */ /*----------------------------------------------------------------------------*/ /* LBT-RU main header */ typedef struct { lbm_uint8_t ver_type; lbm_uint8_t next_hdr; lbm_uint16_t flags_or_res; } lbtru_hdr_t; #define O_LBTRU_HDR_T_VER_TYPE OFFSETOF(lbtru_hdr_t, ver_type) #define L_LBTRU_HDR_T_VER_TYPE SIZEOF(lbtru_hdr_t, ver_type) #define O_LBTRU_HDR_T_NEXT_HDR OFFSETOF(lbtru_hdr_t, next_hdr) #define L_LBTRU_HDR_T_NEXT_HDR SIZEOF(lbtru_hdr_t, next_hdr) #define O_LBTRU_HDR_T_FLAGS_OR_RES OFFSETOF(lbtru_hdr_t, flags_or_res) #define L_LBTRU_HDR_T_FLAGS_OR_RES SIZEOF(lbtru_hdr_t, flags_or_res) #define L_LBTRU_HDR_T (gint) sizeof(lbtru_hdr_t) #define LBTRU_VERSION 0x00 #define LBTRU_HDR_VER(x) (x >> 4) #define LBTRU_HDR_TYPE(x) (x & 0x0F) #define LBTRU_HDR_VER_VER_MASK 0xF0 #define LBTRU_HDR_VER_TYPE_MASK 0x0F #define LBTRU_RETRANSMISSION_FLAG 0x4000 /* LBT-RU data header */ typedef struct { lbm_uint32_t sqn; lbm_uint32_t trail_sqn; } lbtru_data_hdr_t; #define O_LBTRU_DATA_HDR_T_SQN OFFSETOF(lbtru_data_hdr_t, sqn) #define L_LBTRU_DATA_HDR_T_SQN SIZEOF(lbtru_data_hdr_t, sqn) #define O_LBTRU_DATA_HDR_T_TRAIL_SQN OFFSETOF(lbtru_data_hdr_t, trail_sqn) #define L_LBTRU_DATA_HDR_T_TRAIL_SQN SIZEOF(lbtru_data_hdr_t, trail_sqn) #define L_LBTRU_DATA_HDR_T (gint) (sizeof(lbtru_data_hdr_t)) /* LBT-RU Session Message header */ typedef struct { lbm_uint32_t sm_sqn; lbm_uint32_t lead_sqn; lbm_uint32_t trail_sqn; } lbtru_sm_hdr_t; #define O_LBTRU_SM_HDR_T_SM_SQN OFFSETOF(lbtru_sm_hdr_t, sm_sqn) #define L_LBTRU_SM_HDR_T_SM_SQN SIZEOF(lbtru_sm_hdr_t, sm_sqn) #define O_LBTRU_SM_HDR_T_LEAD_SQN OFFSETOF(lbtru_sm_hdr_t, lead_sqn) #define L_LBTRU_SM_HDR_T_LEAD_SQN SIZEOF(lbtru_sm_hdr_t, lead_sqn) #define O_LBTRU_SM_HDR_T_TRAIL_SQN OFFSETOF(lbtru_sm_hdr_t, trail_sqn) #define L_LBTRU_SM_HDR_T_TRAIL_SQN SIZEOF(lbtru_sm_hdr_t, trail_sqn) #define L_LBTRU_SM_HDR_T (gint) (sizeof(lbtru_sm_hdr_t)) #define LBTRU_SM_SYN_FLAG 0x8000 /* LBT-RU NAK header */ typedef struct { lbm_uint16_t num_naks; lbm_uint16_t format; } lbtru_nak_hdr_t; #define O_LBTRU_NAK_HDR_T_NUM_NAKS OFFSETOF(lbtru_nak_hdr_t, num_naks) #define L_LBTRU_NAK_HDR_T_NUM_NAKS SIZEOF(lbtru_nak_hdr_t, num_naks) #define O_LBTRU_NAK_HDR_T_FORMAT OFFSETOF(lbtru_nak_hdr_t, format) #define L_LBTRU_NAK_HDR_T_FORMAT SIZEOF(lbtru_nak_hdr_t, format) #define L_LBTRU_NAK_HDR_T (gint) (sizeof(lbtru_nak_hdr_t)) #define LBTRU_NAK_SELECTIVE_FORMAT 0x0 #define LBTRU_NAK_HDR_FORMAT_MASK 0x000F #define LBTRU_NAK_HDR_FORMAT(x) (x & 0xF) /* LBT-RU NAK Confirmation header */ typedef struct { lbm_uint32_t trail_sqn; lbm_uint16_t num_ncfs; lbm_uint8_t reserved; lbm_uint8_t reason_format; } lbtru_ncf_hdr_t; #define O_LBTRU_NCF_HDR_T_TRAIL_SQN OFFSETOF(lbtru_ncf_hdr_t, trail_sqn) #define L_LBTRU_NCF_HDR_T_TRAIL_SQN SIZEOF(lbtru_ncf_hdr_t, trail_sqn) #define O_LBTRU_NCF_HDR_T_NUM_NCFS OFFSETOF(lbtru_ncf_hdr_t, num_ncfs) #define L_LBTRU_NCF_HDR_T_NUM_NCFS SIZEOF(lbtru_ncf_hdr_t, num_ncfs) #define O_LBTRU_NCF_HDR_T_RESERVED OFFSETOF(lbtru_ncf_hdr_t, reserved) #define L_LBTRU_NCF_HDR_T_RESERVED SIZEOF(lbtru_ncf_hdr_t, reserved) #define O_LBTRU_NCF_HDR_T_REASON_FORMAT OFFSETOF(lbtru_ncf_hdr_t, reason_format) #define L_LBTRU_NCF_HDR_T_REASON_FORMAT SIZEOF(lbtru_ncf_hdr_t, reason_format) #define L_LBTRU_NCF_HDR_T (gint) (sizeof(lbtru_ncf_hdr_t)) #define LBTRU_NCF_SELECTIVE_FORMAT 0x0 #define LBTRU_NCF_HDR_REASON(x) ((x & 0xF0) >> 4) #define LBTRU_NCF_HDR_FORMAT(x) (x & 0xF) #define LBTRU_NCF_HDR_REASON_MASK 0xF0 #define LBTRU_NCF_HDR_FORMAT_MASK 0x0F /* LBT-RU ACK header */ typedef struct { lbm_uint32_t ack_sqn; } lbtru_ack_hdr_t; #define O_LBTRU_ACK_HDR_T_ACK_SQN OFFSETOF(lbtru_ack_hdr_t, ack_sqn) #define L_LBTRU_ACK_HDR_T_ACK_SQN SIZEOF(lbtru_ack_hdr_t, ack_sqn) #define L_LBTRU_ACK_HDR_T (gint) (sizeof(lbtru_ack_hdr_t)) /* LBT-RU basic option header */ typedef struct { lbm_uint8_t next_hdr; lbm_uint8_t hdr_len; lbm_uint16_t res; } lbtru_basic_opt_t; #define O_LBTRU_BASIC_OPT_T_NEXT_HDR OFFSETOF(lbtru_basic_opt_t, next_hdr) #define L_LBTRU_BASIC_OPT_T_NEXT_HDR SIZEOF(lbtru_basic_opt_t, next_hdr) #define O_LBTRU_BASIC_OPT_T_HDR_LEN OFFSETOF(lbtru_basic_opt_t, hdr_len) #define L_LBTRU_BASIC_OPT_T_HDR_LEN SIZEOF(lbtru_basic_opt_t, hdr_len) #define O_LBTRU_BASIC_OPT_T_RES OFFSETOF(lbtru_basic_opt_t, res) #define L_LBTRU_BASIC_OPT_T_RES SIZEOF(lbtru_basic_opt_t, res) #define L_LBTRU_BASIC_OPT_T (gint) (sizeof(lbtru_basic_opt_t)) /* LBT-RU Session ID option header */ typedef struct { lbm_uint32_t session_id; } lbtru_sid_opt_t; #define O_LBTRU_SID_OPT_T_SESSION_ID OFFSETOF(lbtru_sid_opt_t, session_id) #define L_LBTRU_SID_OPT_T_SESSION_ID SIZEOF(lbtru_sid_opt_t, session_id) #define L_LBTRU_SID_OPT_T (gint) (sizeof(lbtru_sid_opt_t)) /* LBT-RU Client ID option header */ typedef struct { lbm_uint32_t client_sid; } lbtru_cid_opt_t; #define O_LBTRU_CID_OPT_T_CLIENT_SID OFFSETOF(lbtru_cid_opt_t, client_sid) #define L_LBTRU_CID_OPT_T_CLIENT_SID SIZEOF(lbtru_cid_opt_t, client_sid) #define L_LBTRU_CID_OPT_T (gint) (sizeof(lbtru_cid_opt_t)) #define LBTRU_OPT_IGNORE 0x8000 #define LBTRU_NHDR_DATA 0x00 #define LBTRU_NHDR_SID 0x01 #define LBTRU_NHDR_CID 0x02 /*----------------------------------------------------------------------------*/ /* Value translation tables. */ /*----------------------------------------------------------------------------*/ static const value_string lbtru_packet_type[] = { { LBTRU_PACKET_TYPE_DATA, "DATA" }, { LBTRU_PACKET_TYPE_SM, "SM" }, { LBTRU_PACKET_TYPE_NAK, "NAK" }, { LBTRU_PACKET_TYPE_NCF, "NCF" }, { LBTRU_PACKET_TYPE_ACK, "ACK" }, { LBTRU_PACKET_TYPE_CREQ, "CREQ" }, { LBTRU_PACKET_TYPE_RST, "RST" }, { 0x0, NULL } }; static const value_string lbtru_nak_format[] = { { LBTRU_NAK_SELECTIVE_FORMAT, "Selective" }, { 0x0, NULL } }; static const value_string lbtru_ncf_format[] = { { LBTRU_NCF_SELECTIVE_FORMAT, "Selective" }, { 0x0, NULL } }; static const value_string lbtru_ncf_reason[] = { { LBTRU_NCF_REASON_NO_RETRY, "Do not retry" }, { LBTRU_NCF_REASON_IGNORED, "NAK Ignored" }, { LBTRU_NCF_REASON_RX_DELAY, "Retransmit Delay" }, { LBTRU_NCF_REASON_SHED, "NAK Shed" }, { 0x0, NULL } }; static const value_string lbtru_creq_request[] = { { LBTRU_CREQ_REQUEST_SYN, "SYN" }, { 0x0, NULL } }; static const value_string lbtru_rst_reason[] = { { LBTRU_RST_REASON_DEFAULT, "Default" }, { 0x0, NULL } }; static const value_string lbtru_next_header[] = { { LBTRU_NHDR_DATA, "DATA" }, { LBTRU_NHDR_SID, "SID" }, { LBTRU_NHDR_CID, "CID" }, { 0x0, NULL } }; /*----------------------------------------------------------------------------*/ /* Preferences. */ /*----------------------------------------------------------------------------*/ /* Preferences default values. */ #define LBTRU_DEFAULT_SOURCE_PORT_LOW 14380 #define LBTRU_DEFAULT_SOURCE_PORT_HIGH 14389 #define LBTRU_DEFAULT_RECEIVER_PORT_LOW 14360 #define LBTRU_DEFAULT_RECEIVER_PORT_HIGH 14379 /* Global preferences variables (altered by the preferences dialog). */ static guint32 global_lbtru_source_port_low = LBTRU_DEFAULT_SOURCE_PORT_LOW; static guint32 global_lbtru_source_port_high = LBTRU_DEFAULT_SOURCE_PORT_HIGH; static guint32 global_lbtru_receiver_port_low = LBTRU_DEFAULT_RECEIVER_PORT_LOW; static guint32 global_lbtru_receiver_port_high = LBTRU_DEFAULT_RECEIVER_PORT_HIGH; static gboolean global_lbtru_expert_separate_naks = FALSE; static gboolean global_lbtru_expert_separate_ncfs = FALSE; static gboolean global_lbtru_use_tag = FALSE; static gboolean global_lbtru_sequence_analysis = FALSE; /* Local preferences variables (used by the dissector). */ static guint32 lbtru_source_port_low = LBTRU_DEFAULT_SOURCE_PORT_LOW; static guint32 lbtru_source_port_high = LBTRU_DEFAULT_SOURCE_PORT_HIGH; static guint32 lbtru_receiver_port_low = LBTRU_DEFAULT_RECEIVER_PORT_LOW; static guint32 lbtru_receiver_port_high = LBTRU_DEFAULT_RECEIVER_PORT_HIGH; static gboolean lbtru_expert_separate_naks = FALSE; static gboolean lbtru_expert_separate_ncfs = FALSE; static gboolean lbtru_use_tag = FALSE; static gboolean lbtru_sequence_analysis = FALSE; /*----------------------------------------------------------------------------*/ /* Tag management. */ /*----------------------------------------------------------------------------*/ typedef struct { char * name; guint32 source_port_low; guint32 source_port_high; guint32 receiver_port_low; guint32 receiver_port_high; } lbtru_tag_entry_t; static lbtru_tag_entry_t * lbtru_tag_entry = NULL; static guint lbtru_tag_count = 0; UAT_CSTRING_CB_DEF(lbtru_tag, name, lbtru_tag_entry_t) UAT_DEC_CB_DEF(lbtru_tag, source_port_low, lbtru_tag_entry_t) UAT_DEC_CB_DEF(lbtru_tag, source_port_high, lbtru_tag_entry_t) UAT_DEC_CB_DEF(lbtru_tag, receiver_port_low, lbtru_tag_entry_t) UAT_DEC_CB_DEF(lbtru_tag, receiver_port_high, lbtru_tag_entry_t) static uat_field_t lbtru_tag_array[] = { UAT_FLD_CSTRING(lbtru_tag, name, "Tag name", "Tag name"), UAT_FLD_DEC(lbtru_tag, source_port_low, "Source port low", "Source port low"), UAT_FLD_DEC(lbtru_tag, source_port_high, "Source port high", "Source port high"), UAT_FLD_DEC(lbtru_tag, receiver_port_low, "Receiver port low", "Receiver port low"), UAT_FLD_DEC(lbtru_tag, receiver_port_high, "Receiver port high", "Receiver port high"), UAT_END_FIELDS }; /*----------------------------------------------------------------------------*/ /* UAT callback functions. */ /*----------------------------------------------------------------------------*/ static gboolean lbtru_tag_update_cb(void * record, char * * error_string) { lbtru_tag_entry_t * tag = (lbtru_tag_entry_t *)record; if (tag->name == NULL) { *error_string = g_strdup("Tag name can't be empty"); return FALSE; } else { g_strstrip(tag->name); if (tag->name[0] == 0) { *error_string = g_strdup("Tag name can't be empty"); return FALSE; } } return TRUE; } static void * lbtru_tag_copy_cb(void * destination, const void * source, size_t length _U_) { const lbtru_tag_entry_t * src = (const lbtru_tag_entry_t *)source; lbtru_tag_entry_t * dest = (lbtru_tag_entry_t *)destination; dest->name = g_strdup(src->name); dest->source_port_low = src->source_port_low; dest->source_port_high = src->source_port_high; dest->receiver_port_low = src->receiver_port_low; dest->receiver_port_high = src->receiver_port_high; return (dest); } static void lbtru_tag_free_cb(void * record) { lbtru_tag_entry_t * tag = (lbtru_tag_entry_t *)record; if (tag->name != NULL) { g_free(tag->name); tag->name = NULL; } } static char * lbtru_tag_find(packet_info * pinfo) { guint idx; lbtru_tag_entry_t * tag = NULL; if (!lbtru_use_tag) { return (NULL); } for (idx = 0; idx < lbtru_tag_count; ++idx) { tag = &(lbtru_tag_entry[idx]); if (((pinfo->destport >= tag->source_port_low) && (pinfo->destport <= tag->source_port_high) && (pinfo->srcport >= tag->receiver_port_low) && (pinfo->srcport <= tag->receiver_port_high)) || ((pinfo->destport >= tag->receiver_port_low) && (pinfo->destport <= tag->receiver_port_high) && (pinfo->srcport >= tag->source_port_low) && (pinfo->srcport <= tag->source_port_high))) { /* One of ours. */ return tag->name; } } return (NULL); } /*----------------------------------------------------------------------------*/ /* Handles of all types. */ /*----------------------------------------------------------------------------*/ /* Dissector tree handles */ static gint ett_lbtru = -1; static gint ett_lbtru_channel = -1; static gint ett_lbtru_hdr = -1; static gint ett_lbtru_hdr_flags = -1; static gint ett_lbtru_data = -1; static gint ett_lbtru_sm = -1; static gint ett_lbtru_nak = -1; static gint ett_lbtru_nak_list = -1; static gint ett_lbtru_ncf = -1; static gint ett_lbtru_ncf_list = -1; static gint ett_lbtru_ack = -1; static gint ett_lbtru_opt = -1; static gint ett_lbtru_opt_sid_flags = -1; static gint ett_lbtru_opt_cid_flags = -1; static gint ett_lbtru_transport = -1; static gint ett_lbtru_transport_sqn = -1; /* Dissector field handles */ static int hf_lbtru_channel = -1; static int hf_lbtru_channel_id = -1; static int hf_lbtru_channel_client = -1; static int hf_lbtru_tag = -1; static int hf_lbtru_hdr = -1; static int hf_lbtru_hdr_ver = -1; static int hf_lbtru_hdr_type = -1; static int hf_lbtru_hdr_next_hdr = -1; static int hf_lbtru_hdr_res = -1; static int hf_lbtru_hdr_flags = -1; static int hf_lbtru_hdr_flags_syn = -1; static int hf_lbtru_hdr_flags_rx = -1; static int hf_lbtru_hdr_request = -1; static int hf_lbtru_hdr_reason = -1; static int hf_lbtru_data = -1; static int hf_lbtru_data_sqn = -1; static int hf_lbtru_data_trail_sqn = -1; static int hf_lbtru_sm = -1; static int hf_lbtru_sm_sqn = -1; static int hf_lbtru_sm_lead_sqn = -1; static int hf_lbtru_sm_trail_sqn = -1; static int hf_lbtru_nak = -1; static int hf_lbtru_nak_num = -1; static int hf_lbtru_nak_format = -1; static int hf_lbtru_nak_list = -1; static int hf_lbtru_nak_list_nak = -1; static int hf_lbtru_ncf = -1; static int hf_lbtru_ncf_trail_sqn = -1; static int hf_lbtru_ncf_num = -1; static int hf_lbtru_ncf_reserved = -1; static int hf_lbtru_ncf_reason = -1; static int hf_lbtru_ncf_format = -1; static int hf_lbtru_ncf_list = -1; static int hf_lbtru_ncf_list_ncf = -1; static int hf_lbtru_ack = -1; static int hf_lbtru_ack_sqn = -1; static int hf_lbtru_opt_sid = -1; static int hf_lbtru_opt_sid_next_hdr = -1; static int hf_lbtru_opt_sid_hdr_len = -1; static int hf_lbtru_opt_sid_flags = -1; static int hf_lbtru_opt_sid_flags_ignore = -1; static int hf_lbtru_opt_sid_session_id = -1; static int hf_lbtru_opt_cid = -1; static int hf_lbtru_opt_cid_next_hdr = -1; static int hf_lbtru_opt_cid_hdr_len = -1; static int hf_lbtru_opt_cid_flags = -1; static int hf_lbtru_opt_cid_flags_ignore = -1; static int hf_lbtru_opt_cid_client_id = -1; static int hf_lbtru_opt_unknown = -1; static int hf_lbtru_opt_unknown_next_hdr = -1; static int hf_lbtru_opt_unknown_hdr_len = -1; static int hf_lbtru_analysis = -1; static int hf_lbtru_analysis_prev_frame = -1; static int hf_lbtru_analysis_prev_data_frame = -1; static int hf_lbtru_analysis_prev_sm_frame = -1; static int hf_lbtru_analysis_prev_nak_frame = -1; static int hf_lbtru_analysis_prev_ncf_frame = -1; static int hf_lbtru_analysis_prev_ack_frame = -1; static int hf_lbtru_analysis_prev_creq_frame = -1; static int hf_lbtru_analysis_prev_rst_frame = -1; static int hf_lbtru_analysis_next_frame = -1; static int hf_lbtru_analysis_next_data_frame = -1; static int hf_lbtru_analysis_next_sm_frame = -1; static int hf_lbtru_analysis_next_nak_frame = -1; static int hf_lbtru_analysis_next_ncf_frame = -1; static int hf_lbtru_analysis_next_ack_frame = -1; static int hf_lbtru_analysis_next_creq_frame = -1; static int hf_lbtru_analysis_next_rst_frame = -1; static int hf_lbtru_analysis_sqn = -1; static int hf_lbtru_analysis_sqn_frame = -1; static int hf_lbtru_analysis_data_retransmission = -1; static int hf_lbtru_analysis_data_sqn_gap = -1; static int hf_lbtru_analysis_data_ooo_gap = -1; static int hf_lbtru_analysis_data_duplicate = -1; static int hf_lbtru_analysis_sm_sqn_gap = -1; static int hf_lbtru_analysis_sm_ooo_gap = -1; static int hf_lbtru_analysis_sm_duplicate = -1; /* Expert info handles */ static expert_field ei_lbtru_analysis_unknown_type = EI_INIT; static expert_field ei_lbtru_analysis_unknown_header = EI_INIT; static expert_field ei_lbtru_analysis_zero_length_header = EI_INIT; static expert_field ei_lbtru_analysis_ack = EI_INIT; static expert_field ei_lbtru_analysis_ncf = EI_INIT; static expert_field ei_lbtru_analysis_ncf_ncf = EI_INIT; static expert_field ei_lbtru_analysis_nak = EI_INIT; static expert_field ei_lbtru_analysis_nak_nak = EI_INIT; static expert_field ei_lbtru_analysis_sm = EI_INIT; static expert_field ei_lbtru_analysis_sm_syn = EI_INIT; static expert_field ei_lbtru_analysis_creq = EI_INIT; static expert_field ei_lbtru_analysis_rst = EI_INIT; static expert_field ei_lbtru_analysis_data_rx = EI_INIT; static expert_field ei_lbtru_analysis_data_gap = EI_INIT; static expert_field ei_lbtru_analysis_data_ooo = EI_INIT; static expert_field ei_lbtru_analysis_data_dup = EI_INIT; static expert_field ei_lbtru_analysis_sm_gap = EI_INIT; static expert_field ei_lbtru_analysis_sm_ooo = EI_INIT; static expert_field ei_lbtru_analysis_sm_dup = EI_INIT; /*----------------------------------------------------------------------------*/ /* LBT-RU data payload dissection functions. */ /*----------------------------------------------------------------------------*/ static int dissect_lbtru_data_contents(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, const char * tag_name, guint64 channel) { tvbuff_t * next_tvb; next_tvb = tvb_new_subset_remaining(tvb, offset); return (lbmc_dissect_lbmc_packet(next_tvb, 0, pinfo, tree, tag_name, channel)); } /*----------------------------------------------------------------------------*/ /* LBT-RU ACK packet dissection functions. */ /*----------------------------------------------------------------------------*/ static int dissect_lbtru_ack(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, lbm_lbtru_tap_info_t * tap_info) { proto_tree * ack_tree = NULL; proto_item * ack_item = NULL; proto_item * ack = NULL; ack_item = proto_tree_add_item(tree, hf_lbtru_ack, tvb, offset, L_LBTRU_ACK_HDR_T, ENC_NA); ack_tree = proto_item_add_subtree(ack_item, ett_lbtru_ack); ack = proto_tree_add_item(ack_tree, hf_lbtru_ack_sqn, tvb, offset + O_LBTRU_ACK_HDR_T_ACK_SQN, L_LBTRU_ACK_HDR_T_ACK_SQN, ENC_BIG_ENDIAN); expert_add_info(pinfo, ack, &ei_lbtru_analysis_ack); tap_info->sqn = tvb_get_ntohl(tvb, offset + O_LBTRU_ACK_HDR_T_ACK_SQN); return (L_LBTRU_ACK_HDR_T); } /*----------------------------------------------------------------------------*/ /* LBT-RU NAK confirmation packet dissection functions. */ /*----------------------------------------------------------------------------*/ static int dissect_lbtru_ncf_list(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, int ncf_count, int reason, lbm_lbtru_tap_info_t * tap_info) { proto_tree * ncf_tree = NULL; proto_item * ncf_item = NULL; lbm_uint32_t ncf; int idx = 0; int len = 0; ncf_item = proto_tree_add_item(tree, hf_lbtru_ncf_list, tvb, offset, -1, ENC_NA); ncf_tree = proto_item_add_subtree(ncf_item, ett_lbtru_ncf_list); for (idx = 0; idx < ncf_count; idx++) { proto_item * sep_ncf_item = NULL; ncf = tvb_get_ntohl(tvb, offset + len); sep_ncf_item = proto_tree_add_item(ncf_tree, hf_lbtru_ncf_list_ncf, tvb, offset + len, sizeof(lbm_uint32_t), ENC_BIG_ENDIAN); if (lbtru_expert_separate_ncfs) { expert_add_info_format(pinfo, sep_ncf_item, &ei_lbtru_analysis_ncf_ncf, "NCF 0x%08x %s", ncf, val_to_str(reason, lbtru_ncf_reason, "Unknown (0x%02x)")); } tap_info->sqns[idx] = ncf; len += (int)sizeof(lbm_uint32_t); } proto_item_set_len(ncf_item, len); return (len); } static int dissect_lbtru_ncf(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, lbm_lbtru_tap_info_t * tap_info) { int len_dissected; guint8 reason_format; proto_tree * ncf_tree = NULL; proto_item * ncf_item = NULL; guint16 num_ncfs = 0; ncf_item = proto_tree_add_item(tree, hf_lbtru_ncf, tvb, offset, -1, ENC_NA); ncf_tree = proto_item_add_subtree(ncf_item, ett_lbtru_ncf); reason_format = tvb_get_guint8(tvb, offset + O_LBTRU_NCF_HDR_T_REASON_FORMAT); num_ncfs = tvb_get_ntohs(tvb, offset + O_LBTRU_NCF_HDR_T_NUM_NCFS); proto_tree_add_item(ncf_tree, hf_lbtru_ncf_trail_sqn, tvb, offset + O_LBTRU_NCF_HDR_T_TRAIL_SQN, L_LBTRU_NCF_HDR_T_TRAIL_SQN, ENC_BIG_ENDIAN); proto_tree_add_item(ncf_tree, hf_lbtru_ncf_num, tvb, offset + O_LBTRU_NCF_HDR_T_NUM_NCFS, L_LBTRU_NCF_HDR_T_NUM_NCFS, ENC_BIG_ENDIAN); proto_tree_add_item(ncf_tree, hf_lbtru_ncf_reserved, tvb, offset + O_LBTRU_NCF_HDR_T_RESERVED, L_LBTRU_NCF_HDR_T_RESERVED, ENC_BIG_ENDIAN); proto_tree_add_item(ncf_tree, hf_lbtru_ncf_reason, tvb, offset + O_LBTRU_NCF_HDR_T_REASON_FORMAT, L_LBTRU_NCF_HDR_T_REASON_FORMAT, ENC_BIG_ENDIAN); proto_tree_add_item(ncf_tree, hf_lbtru_ncf_format, tvb, offset + O_LBTRU_NCF_HDR_T_REASON_FORMAT, L_LBTRU_NCF_HDR_T_REASON_FORMAT, ENC_BIG_ENDIAN); len_dissected = L_LBTRU_NCF_HDR_T; if (!lbtru_expert_separate_ncfs) { expert_add_info_format(pinfo, ncf_item, &ei_lbtru_analysis_ncf, "NCF %s", val_to_str(LBTRU_NCF_HDR_REASON(reason_format), lbtru_ncf_reason, "Unknown (0x%02x)")); } tap_info->ncf_reason = LBTRU_NCF_HDR_REASON(reason_format);; tap_info->num_sqns = num_ncfs; tap_info->sqns = wmem_alloc_array(wmem_packet_scope(), guint32, num_ncfs); len_dissected += dissect_lbtru_ncf_list(tvb, offset + L_LBTRU_NCF_HDR_T, pinfo, ncf_tree, num_ncfs, LBTRU_NCF_HDR_REASON(reason_format), tap_info); proto_item_set_len(ncf_item, len_dissected); return (len_dissected); } /*----------------------------------------------------------------------------*/ /* LBT-RU NAK packet dissection functions. */ /*----------------------------------------------------------------------------*/ static int dissect_lbtru_nak_list(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, int nak_count, lbm_lbtru_tap_info_t * tap_info) { proto_tree * nak_tree = NULL; proto_item * nak_item = NULL; int idx = 0; int len = 0; nak_item = proto_tree_add_item(tree, hf_lbtru_nak_list, tvb, offset, -1, ENC_NA); nak_tree = proto_item_add_subtree(nak_item, ett_lbtru_nak_list); for (idx = 0; idx < nak_count; idx++) { proto_item * sep_nak_item = NULL; lbm_uint32_t nak; nak = tvb_get_ntohl(tvb, offset + len); sep_nak_item = proto_tree_add_item(nak_tree, hf_lbtru_nak_list_nak, tvb, offset + len, sizeof(lbm_uint32_t), ENC_BIG_ENDIAN); if (lbtru_expert_separate_naks) { expert_add_info_format(pinfo, sep_nak_item, &ei_lbtru_analysis_nak_nak, "NAK 0x%08x", nak); } tap_info->sqns[idx] = nak; len += (int)sizeof(lbm_uint32_t); } proto_item_set_len(nak_item, len); return (len); } static int dissect_lbtru_nak(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, lbm_lbtru_tap_info_t * tap_info) { int len_dissected; proto_tree * nak_tree = NULL; proto_item * nak_item = NULL; guint16 num_naks = 0; nak_item = proto_tree_add_item(tree, hf_lbtru_nak, tvb, offset, -1, ENC_NA); nak_tree = proto_item_add_subtree(nak_item, ett_lbtru_nak); num_naks = tvb_get_ntohs(tvb, offset + O_LBTRU_NAK_HDR_T_NUM_NAKS); proto_tree_add_item(nak_tree, hf_lbtru_nak_num, tvb, offset + O_LBTRU_NAK_HDR_T_NUM_NAKS, L_LBTRU_NAK_HDR_T_NUM_NAKS, ENC_BIG_ENDIAN); proto_tree_add_item(nak_tree, hf_lbtru_nak_format, tvb, offset + O_LBTRU_NAK_HDR_T_FORMAT, L_LBTRU_NAK_HDR_T_FORMAT, ENC_BIG_ENDIAN); len_dissected = L_LBTRU_NAK_HDR_T; if (!lbtru_expert_separate_naks) { expert_add_info(pinfo, nak_item, &ei_lbtru_analysis_nak); } tap_info->num_sqns = num_naks; tap_info->sqns = wmem_alloc_array(wmem_packet_scope(), guint32, num_naks); len_dissected += dissect_lbtru_nak_list(tvb, offset + L_LBTRU_NAK_HDR_T, pinfo, nak_tree, num_naks, tap_info); proto_item_set_len(nak_item, len_dissected); return (len_dissected); } /*----------------------------------------------------------------------------*/ /* LBT-RU session message packet dissection function. */ /*----------------------------------------------------------------------------*/ static int dissect_lbtru_sm(tvbuff_t * tvb, int offset, packet_info * pinfo, proto_tree * tree, int syn, lbm_lbtru_tap_info_t * tap_info) { proto_tree * sm_tree = NULL; proto_item * sm_item = NULL; proto_item * sm_sqn = NULL; sm_item = proto_tree_add_item(tree, hf_lbtru_sm, tvb, offset, L_LBTRU_SM_HDR_T, ENC_NA); sm_tree = proto_item_add_subtree(sm_item, ett_lbtru_sm); sm_sqn = proto_tree_add_item(sm_tree, hf_lbtru_sm_sqn, tvb, offset + O_LBTRU_SM_HDR_T_SM_SQN, L_LBTRU_SM_HDR_T_SM_SQN, ENC_BIG_ENDIAN); proto_tree_add_item(sm_tree, hf_lbtru_sm_lead_sqn, tvb, offset + O_LBTRU_SM_HDR_T_LEAD_SQN, L_LBTRU_SM_HDR_T_LEAD_SQN, ENC_BIG_ENDIAN); proto_tree_add_item(sm_tree, hf_lbtru_sm_trail_sqn, tvb, offset + O_LBTRU_SM_HDR_T_TRAIL_SQN, L_LBTRU_SM_HDR_T_TRAIL_SQN, ENC_BIG_ENDIAN); if (syn) { expert_add_info(pinfo, sm_sqn, &ei_lbtru_analysis_sm_syn); } else { expert_add_info(pinfo, sm_sqn, &ei_lbtru_analysis_sm); } tap_info->sqn = tvb_get_ntohl(tvb, offset + O_LBTRU_SM_HDR_T_SM_SQN); return (L_LBTRU_SM_HDR_T); } /*----------------------------------------------------------------------------*/ /* LBT-RU data packet dissection functions. */ /*----------------------------------------------------------------------------*/ static int dissect_lbtru_data(tvbuff_t * tvb, int offset, packet_info * pinfo _U_, proto_tree * tree, lbm_lbtru_tap_info_t * tap_info) { proto_tree * data_tree = NULL; proto_item * data_item = NULL; data_item = proto_tree_add_item(tree, hf_lbtru_data, tvb, offset, L_LBTRU_DATA_HDR_T, ENC_NA); data_tree = proto_item_add_subtree(data_item, ett_lbtru_data); proto_tree_add_item(data_tree, hf_lbtru_data_sqn, tvb, offset + O_LBTRU_DATA_HDR_T_SQN, L_LBTRU_DATA_HDR_T_SQN, ENC_BIG_ENDIAN); proto_tree_add_item(data_tree, hf_lbtru_data_trail_sqn, tvb, offset + O_LBTRU_DATA_HDR_T_TRAIL_SQN, L_LBTRU_DATA_HDR_T_TRAIL_SQN, ENC_BIG_ENDIAN); tap_info->sqn = tvb_get_ntohl(tvb, offset + O_LBTRU_DATA_HDR_T_SQN); return (L_LBTRU_DATA_HDR_T); } /*----------------------------------------------------------------------------*/ /* LBT-RU packet dissector. */ /*----------------------------------------------------------------------------*/ typedef struct { proto_tree * tree; tvbuff_t * tvb; guint32 current_frame; } lbtru_sqn_frame_list_callback_data_t; static gboolean dissect_lbtru_sqn_frame_list_callback(const void *key _U_, void * frame, void * user_data) { lbtru_sqn_frame_list_callback_data_t * cb_data = (lbtru_sqn_frame_list_callback_data_t *) user_data; proto_item * transport_item = NULL; lbm_transport_sqn_frame_t * sqn_frame = (lbm_transport_sqn_frame_t *) frame; if (sqn_frame->frame != cb_data->current_frame) { if (sqn_frame->retransmission) { transport_item = proto_tree_add_uint_format_value(cb_data->tree, hf_lbtru_analysis_sqn_frame, cb_data->tvb, 0, 0, sqn_frame->frame, "%" G_GUINT32_FORMAT " (RX)", sqn_frame->frame); } else { transport_item = proto_tree_add_uint(cb_data->tree, hf_lbtru_analysis_sqn_frame, cb_data->tvb, 0, 0, sqn_frame->frame); } PROTO_ITEM_SET_GENERATED(transport_item); } return (FALSE); } static int dissect_lbtru(tvbuff_t * tvb, packet_info * pinfo, proto_tree * tree, void * user_data _U_) { proto_tree * lbtru_tree = NULL; proto_item * lbtru_item = NULL; static const int * flags_data[] = { &hf_lbtru_hdr_flags_rx, NULL }; static const int * flags_sm[] = { &hf_lbtru_hdr_flags_syn, NULL }; int ofs = 0; guint32 session_id = 0; char * tag_name = NULL; int dissected_len; int total_dissected_len = 0; proto_tree * header_tree = NULL; proto_item * header_item = NULL; proto_tree * transport_tree = NULL; proto_item * transport_item = NULL; gboolean from_source = TRUE; guint8 packet_type = 0; address source_address; address receiver_address; guint16 source_port = 0; guint16 receiver_port = 0; lbtru_transport_t * transport = NULL; lbtru_client_transport_t * client = NULL; guint64 channel = LBM_CHANNEL_NO_CHANNEL; proto_tree * channel_tree = NULL; proto_item * channel_item = NULL; guint8 ver_type = 0; guint8 next_hdr = 0; guint32 packet_sqn = 0; guint16 flags_or_res = 0; guint16 num_naks = 0; guint16 num_ncfs = 0; gboolean retransmission = FALSE; proto_item * fld_item = NULL; proto_item * ei_item = NULL; proto_item * type_item = NULL; proto_item * next_hdr_item = NULL; lbm_lbtru_tap_info_t * tapinfo = NULL; col_add_str(pinfo->cinfo, COL_PROTOCOL, "LBT-RU"); if (lbtru_use_tag) { tag_name = lbtru_tag_find(pinfo); } col_clear(pinfo->cinfo, COL_INFO); if (tag_name != NULL) { col_add_fstr(pinfo->cinfo, COL_INFO, "[Tag: %s]", tag_name); } col_set_fence(pinfo->cinfo, COL_INFO); ver_type = tvb_get_guint8(tvb, O_LBTRU_HDR_T_VER_TYPE); next_hdr = tvb_get_guint8(tvb, O_LBTRU_HDR_T_NEXT_HDR); flags_or_res = tvb_get_ntohs(tvb, O_LBTRU_HDR_T_FLAGS_OR_RES); packet_type = LBTRU_HDR_TYPE(ver_type); if (tag_name != NULL) { lbtru_item = proto_tree_add_protocol_format(tree, proto_lbtru, tvb, ofs, -1, "LBT-RU Protocol (Tag: %s): Version %u, Type %s", tag_name, LBTRU_HDR_VER(ver_type), val_to_str(LBTRU_HDR_TYPE(ver_type), lbtru_packet_type, "Unknown (0x%02x)")); } else { lbtru_item = proto_tree_add_protocol_format(tree, proto_lbtru, tvb, ofs, -1, "LBT-RU Protocol: Version %u, Type %s", LBTRU_HDR_VER(ver_type), val_to_str(LBTRU_HDR_TYPE(ver_type), lbtru_packet_type, "Unknown (0x%02x)")); } lbtru_tree = proto_item_add_subtree(lbtru_item, ett_lbtru); if (tag_name != NULL) { proto_item * item = NULL; item = proto_tree_add_string(lbtru_tree, hf_lbtru_tag, tvb, 0, 0, tag_name); PROTO_ITEM_SET_GENERATED(item); } channel_item = proto_tree_add_item(lbtru_tree, hf_lbtru_channel, tvb, 0, 0, ENC_NA); PROTO_ITEM_SET_GENERATED(channel_item); channel_tree = proto_item_add_subtree(channel_item, ett_lbtru_channel); tapinfo = wmem_new0(wmem_packet_scope(), lbm_lbtru_tap_info_t); tapinfo->type = packet_type; header_item = proto_tree_add_item(lbtru_tree, hf_lbtru_hdr, tvb, 0, -1, ENC_NA); header_tree = proto_item_add_subtree(header_item, ett_lbtru_hdr); proto_tree_add_item(header_tree, hf_lbtru_hdr_ver, tvb, O_LBTRU_HDR_T_VER_TYPE, L_LBTRU_HDR_T_VER_TYPE, ENC_BIG_ENDIAN); type_item = proto_tree_add_item(header_tree, hf_lbtru_hdr_type, tvb, O_LBTRU_HDR_T_VER_TYPE, L_LBTRU_HDR_T_VER_TYPE, ENC_BIG_ENDIAN); next_hdr_item = proto_tree_add_item(header_tree, hf_lbtru_hdr_next_hdr, tvb, O_LBTRU_HDR_T_NEXT_HDR, L_LBTRU_HDR_T_NEXT_HDR, ENC_BIG_ENDIAN); total_dissected_len = L_LBTRU_HDR_T_VER_TYPE + L_LBTRU_HDR_T_NEXT_HDR; ofs = L_LBTRU_HDR_T_VER_TYPE + L_LBTRU_HDR_T_NEXT_HDR; switch (packet_type) { case LBTRU_PACKET_TYPE_DATA: packet_sqn = tvb_get_ntohl(tvb, L_LBTRU_HDR_T + O_LBTRU_DATA_HDR_T_SQN); if ((flags_or_res & LBTRU_RETRANSMISSION_FLAG) != 0) { retransmission = TRUE; tapinfo->retransmission = TRUE; } if (retransmission) { col_append_sep_fstr(pinfo->cinfo, COL_INFO, " ", "DATA(RX) sqn 0x%x", packet_sqn); } else { col_append_sep_fstr(pinfo->cinfo, COL_INFO, " ", "DATA sqn 0x%x", packet_sqn); } from_source = TRUE; break; case LBTRU_PACKET_TYPE_SM: packet_sqn = tvb_get_ntohl(tvb, L_LBTRU_HDR_T + O_LBTRU_SM_HDR_T_SM_SQN); if ((flags_or_res & LBTRU_SM_SYN_FLAG) != 0) { col_append_sep_fstr(pinfo->cinfo, COL_INFO, " ", "SM sqn 0x%x SYN", packet_sqn); } else { col_append_sep_fstr(pinfo->cinfo, COL_INFO, " ", "SM sqn 0x%x", packet_sqn); } from_source = TRUE; break; case LBTRU_PACKET_TYPE_NAK: num_naks = tvb_get_ntohs(tvb, L_LBTRU_HDR_T + O_LBTRU_NAK_HDR_T_NUM_NAKS); col_append_sep_fstr(pinfo->cinfo, COL_INFO, " ", "NAK %" G_GUINT16_FORMAT " naks", num_naks); from_source = FALSE; break; case LBTRU_PACKET_TYPE_NCF: num_ncfs = tvb_get_ntohs(tvb, L_LBTRU_HDR_T + O_LBTRU_NCF_HDR_T_NUM_NCFS); col_append_sep_fstr(pinfo->cinfo, COL_INFO, " ", "NCF %" G_GUINT16_FORMAT " ncfs", num_ncfs); from_source = TRUE; break; case LBTRU_PACKET_TYPE_ACK: packet_sqn = tvb_get_ntohl(tvb, L_LBTRU_HDR_T + O_LBTRU_ACK_HDR_T_ACK_SQN); col_append_sep_fstr(pinfo->cinfo, COL_INFO, " ", "ACK sqn 0x%x", packet_sqn); from_source = FALSE; break; case LBTRU_PACKET_TYPE_CREQ: col_append_sep_fstr(pinfo->cinfo, COL_INFO, " ", "CREQ %s", val_to_str(flags_or_res, lbtru_creq_request, "Unknown (0x%02x)")); from_source = FALSE; break; case LBTRU_PACKET_TYPE_RST: col_append_sep_fstr(pinfo->cinfo, COL_INFO, " ", "RST %s", val_to_str(flags_or_res, lbtru_rst_reason, "Unknown (0x%02x)")); from_source = TRUE; break; default: col_append_sep_fstr(pinfo->cinfo, COL_INFO, " ", "Unknown (0x%02x)", LBTRU_HDR_TYPE(ver_type)); expert_add_info_format(pinfo, type_item, &ei_lbtru_analysis_unknown_type, "Unrecognized type 0x%02x", LBTRU_HDR_TYPE(ver_type)); return (total_dissected_len); break; } /* Handle the flags_or_res field. */ switch (packet_type) { case LBTRU_PACKET_TYPE_DATA: proto_tree_add_bitmask(header_tree, tvb, O_LBTRU_HDR_T_FLAGS_OR_RES, hf_lbtru_hdr_flags, ett_lbtru_hdr_flags, flags_data, ENC_BIG_ENDIAN); total_dissected_len += L_LBTRU_HDR_T_FLAGS_OR_RES; ofs += L_LBTRU_HDR_T_FLAGS_OR_RES; break; case LBTRU_PACKET_TYPE_NAK: case LBTRU_PACKET_TYPE_NCF: case LBTRU_PACKET_TYPE_ACK: proto_tree_add_item(header_tree, hf_lbtru_hdr_res, tvb, O_LBTRU_HDR_T_FLAGS_OR_RES, L_LBTRU_HDR_T_FLAGS_OR_RES, ENC_BIG_ENDIAN); total_dissected_len += L_LBTRU_HDR_T_FLAGS_OR_RES; ofs += L_LBTRU_HDR_T_FLAGS_OR_RES; break; case LBTRU_PACKET_TYPE_SM: proto_tree_add_bitmask(header_tree, tvb, O_LBTRU_HDR_T_FLAGS_OR_RES, hf_lbtru_hdr_flags, ett_lbtru_hdr_flags, flags_sm, ENC_BIG_ENDIAN); total_dissected_len += L_LBTRU_HDR_T_FLAGS_OR_RES; ofs += L_LBTRU_HDR_T_FLAGS_OR_RES; break; case LBTRU_PACKET_TYPE_CREQ: ei_item = proto_tree_add_item(header_tree, hf_lbtru_hdr_request, tvb, O_LBTRU_HDR_T_FLAGS_OR_RES, L_LBTRU_HDR_T_FLAGS_OR_RES, ENC_BIG_ENDIAN); expert_add_info_format(pinfo, ei_item, &ei_lbtru_analysis_creq, "CREQ %s", val_to_str(flags_or_res, lbtru_creq_request, "Unknown (0x%04x)")); total_dissected_len += L_LBTRU_HDR_T_FLAGS_OR_RES; ofs += L_LBTRU_HDR_T_FLAGS_OR_RES; break; case LBTRU_PACKET_TYPE_RST: ei_item = proto_tree_add_item(header_tree, hf_lbtru_hdr_reason, tvb, O_LBTRU_HDR_T_FLAGS_OR_RES, L_LBTRU_HDR_T_FLAGS_OR_RES, ENC_BIG_ENDIAN); expert_add_info_format(pinfo, ei_item, &ei_lbtru_analysis_rst, "RST %s", val_to_str(flags_or_res, lbtru_rst_reason, "Unknown (0x%04x)")); break; default: break; } /* Handle the packet-specific data */ switch (packet_type) { case LBTRU_PACKET_TYPE_DATA: dissected_len = dissect_lbtru_data(tvb, L_LBTRU_HDR_T, pinfo, lbtru_tree, tapinfo); break; case LBTRU_PACKET_TYPE_SM: dissected_len = dissect_lbtru_sm(tvb, L_LBTRU_HDR_T, pinfo, lbtru_tree, (flags_or_res & LBTRU_SM_SYN_FLAG), tapinfo); break; case LBTRU_PACKET_TYPE_NAK: dissected_len = dissect_lbtru_nak(tvb, ofs, pinfo, lbtru_tree, tapinfo); break; case LBTRU_PACKET_TYPE_NCF: dissected_len = dissect_lbtru_ncf(tvb, ofs, pinfo, lbtru_tree, tapinfo); break; case LBTRU_PACKET_TYPE_ACK: dissected_len = dissect_lbtru_ack(tvb, ofs, pinfo, lbtru_tree, tapinfo); break; case LBTRU_PACKET_TYPE_CREQ: dissected_len = 0; tapinfo->creq_type = flags_or_res; break; case LBTRU_PACKET_TYPE_RST: dissected_len = 0; tapinfo->rst_type = flags_or_res; break; default: dissected_len = 0; break; } total_dissected_len += dissected_len; ofs += dissected_len; /* If we're doing sequence analysis, the tree goes here. */ if (lbtru_sequence_analysis) { transport_item = proto_tree_add_item(lbtru_tree, hf_lbtru_analysis, tvb, 0, 0, ENC_NA); PROTO_ITEM_SET_GENERATED(transport_item); transport_tree = proto_item_add_subtree(transport_item, ett_lbtru_transport); } while (next_hdr != LBTRU_NHDR_DATA) { proto_item * hdr_length_item; proto_tree * opt_tree = NULL; static const int * sid_flags[] = { &hf_lbtru_opt_sid_flags_ignore, NULL }; static const int * cid_flags[] = { &hf_lbtru_opt_cid_flags_ignore, NULL }; int hdrlen; guint8 cur_next_hdr; cur_next_hdr = tvb_get_guint8(tvb, ofs + O_LBTRU_BASIC_OPT_T_NEXT_HDR); hdrlen = (int)tvb_get_guint8(tvb, ofs + O_LBTRU_BASIC_OPT_T_HDR_LEN); switch (next_hdr) { case LBTRU_NHDR_SID: fld_item = proto_tree_add_item(lbtru_tree, hf_lbtru_opt_sid, tvb, ofs, L_LBTRU_BASIC_OPT_T + L_LBTRU_SID_OPT_T, ENC_NA); opt_tree = proto_item_add_subtree(fld_item, ett_lbtru_opt); next_hdr_item = proto_tree_add_item(opt_tree, hf_lbtru_opt_sid_next_hdr, tvb, ofs + O_LBTRU_BASIC_OPT_T_NEXT_HDR, L_LBTRU_BASIC_OPT_T_NEXT_HDR, ENC_BIG_ENDIAN); hdr_length_item = proto_tree_add_item(opt_tree, hf_lbtru_opt_sid_hdr_len, tvb, ofs + O_LBTRU_BASIC_OPT_T_HDR_LEN, L_LBTRU_BASIC_OPT_T_HDR_LEN, ENC_BIG_ENDIAN); if (hdrlen == 0) { expert_add_info(pinfo, hdr_length_item, &ei_lbtru_analysis_zero_length_header); return (total_dissected_len); } proto_tree_add_bitmask(opt_tree, tvb, ofs + O_LBTRU_BASIC_OPT_T_RES, hf_lbtru_opt_sid_flags, ett_lbtru_opt_sid_flags, sid_flags, ENC_BIG_ENDIAN); proto_tree_add_item(opt_tree, hf_lbtru_opt_sid_session_id, tvb, ofs + L_LBTRU_BASIC_OPT_T + O_LBTRU_SID_OPT_T_SESSION_ID, L_LBTRU_SID_OPT_T_SESSION_ID, ENC_BIG_ENDIAN); session_id = tvb_get_ntohl(tvb, ofs + L_LBTRU_BASIC_OPT_T + O_LBTRU_SID_OPT_T_SESSION_ID); break; case LBTRU_NHDR_CID: fld_item = proto_tree_add_item(lbtru_tree, hf_lbtru_opt_cid, tvb, ofs, L_LBTRU_BASIC_OPT_T + L_LBTRU_CID_OPT_T, ENC_NA); opt_tree = proto_item_add_subtree(fld_item, ett_lbtru_opt); next_hdr_item = proto_tree_add_item(opt_tree, hf_lbtru_opt_cid_next_hdr, tvb, ofs + O_LBTRU_BASIC_OPT_T_NEXT_HDR, L_LBTRU_BASIC_OPT_T_NEXT_HDR, ENC_BIG_ENDIAN); hdr_length_item = proto_tree_add_item(opt_tree, hf_lbtru_opt_cid_hdr_len, tvb, ofs + O_LBTRU_BASIC_OPT_T_HDR_LEN, L_LBTRU_BASIC_OPT_T_HDR_LEN, ENC_BIG_ENDIAN); if (hdrlen == 0) { expert_add_info(pinfo, hdr_length_item, &ei_lbtru_analysis_zero_length_header); return (total_dissected_len); } proto_tree_add_bitmask(opt_tree, tvb, ofs + O_LBTRU_BASIC_OPT_T_RES, hf_lbtru_opt_cid_flags, ett_lbtru_opt_cid_flags, cid_flags, ENC_BIG_ENDIAN); proto_tree_add_item(opt_tree, hf_lbtru_opt_cid_client_id, tvb, ofs + L_LBTRU_BASIC_OPT_T + O_LBTRU_CID_OPT_T_CLIENT_SID, L_LBTRU_CID_OPT_T_CLIENT_SID, ENC_BIG_ENDIAN); break; default: expert_add_info_format(pinfo, next_hdr_item, &ei_lbtru_analysis_unknown_header, "Unrecognized header 0x%02x", next_hdr); fld_item = proto_tree_add_item(lbtru_tree, hf_lbtru_opt_unknown, tvb, ofs, L_LBTRU_BASIC_OPT_T + L_LBTRU_CID_OPT_T, ENC_NA); opt_tree = proto_item_add_subtree(fld_item, ett_lbtru_opt); next_hdr_item = proto_tree_add_item(opt_tree, hf_lbtru_opt_unknown_next_hdr, tvb, ofs + O_LBTRU_BASIC_OPT_T_NEXT_HDR, L_LBTRU_BASIC_OPT_T_NEXT_HDR, ENC_BIG_ENDIAN); hdr_length_item = proto_tree_add_item(opt_tree, hf_lbtru_opt_unknown_hdr_len, tvb, ofs + O_LBTRU_BASIC_OPT_T_HDR_LEN, L_LBTRU_BASIC_OPT_T_HDR_LEN, ENC_BIG_ENDIAN); if (hdrlen == 0) { expert_add_info(pinfo, hdr_length_item, &ei_lbtru_analysis_zero_length_header); return (total_dissected_len); } break; } next_hdr = cur_next_hdr; ofs += hdrlen; total_dissected_len += hdrlen; } /* Find (or create) the transport and client entries */ if (from_source) { copy_address_shallow(&source_address, &(pinfo->src)); source_port = pinfo->srcport; copy_address_shallow(&receiver_address, &(pinfo->dst)); receiver_port = pinfo->destport; } else { copy_address_shallow(&source_address, &(pinfo->dst)); source_port = pinfo->destport; copy_address_shallow(&receiver_address, &(pinfo->src)); receiver_port = pinfo->srcport; } if (pinfo->fd->flags.visited == 0) { transport = lbtru_transport_add(&source_address, source_port, session_id, pinfo->num); } else { transport = lbtru_transport_find(&source_address, source_port, session_id, pinfo->num); } if (transport != NULL) { if (pinfo->fd->flags.visited == 0) { client = lbtru_client_transport_add(transport, &receiver_address, receiver_port, pinfo->num); if (client != NULL) { if (lbtru_sequence_analysis) { lbtru_client_transport_frame_add(client, packet_type, pinfo->num, packet_sqn, retransmission); } } } else { client = lbtru_client_transport_find(transport, &receiver_address, receiver_port, pinfo->num); } tapinfo->transport = lbtru_transport_source_string_transport(transport); channel = transport->channel; fld_item = proto_tree_add_uint64(channel_tree, hf_lbtru_channel_id, tvb, 0, 0, channel); PROTO_ITEM_SET_GENERATED(fld_item); if (client != NULL) { fld_item = proto_tree_add_uint(channel_tree, hf_lbtru_channel_client, tvb, 0, 0, client->id); PROTO_ITEM_SET_GENERATED(fld_item); } } proto_item_set_len(lbtru_item, total_dissected_len); if ((packet_type == LBTRU_PACKET_TYPE_DATA) && (next_hdr == LBTRU_NHDR_DATA)) { total_dissected_len += dissect_lbtru_data_contents(tvb, ofs, pinfo, tree, tag_name, channel); } if (lbtru_sequence_analysis) { if ((transport != NULL) && (client != NULL)) { lbm_transport_frame_t * frame = NULL; /* Fill in the tree */ frame = lbtru_client_transport_frame_find(client, pinfo->num); if (frame != NULL) { lbm_transport_sqn_t * sqn = NULL; if (frame->previous_frame != 0) { transport_item = proto_tree_add_uint(transport_tree, hf_lbtru_analysis_prev_frame, tvb, 0, 0, frame->previous_frame); PROTO_ITEM_SET_GENERATED(transport_item); } if (frame->next_frame != 0) { transport_item = proto_tree_add_uint(transport_tree, hf_lbtru_analysis_next_frame, tvb, 0, 0, frame->next_frame); PROTO_ITEM_SET_GENERATED(transport_item); } switch (packet_type) { case LBTRU_PACKET_TYPE_DATA: if (frame->previous_type_frame != 0) { transport_item = proto_tree_add_uint(transport_tree, hf_lbtru_analysis_prev_data_frame, tvb, 0, 0, frame->previous_type_frame); PROTO_ITEM_SET_GENERATED(transport_item); } if (frame->next_type_frame != 0) { transport_item = proto_tree_add_uint(transport_tree, hf_lbtru_analysis_next_data_frame, tvb, 0, 0, frame->next_type_frame); PROTO_ITEM_SET_GENERATED(transport_item); } sqn = lbtru_client_transport_sqn_find(client, packet_type, packet_sqn); if (sqn != NULL) { if (sqn->frame_count > 1) { proto_tree * frame_tree = NULL; proto_item * frame_tree_item = NULL; lbtru_sqn_frame_list_callback_data_t cb_data; frame_tree_item = proto_tree_add_item(transport_tree, hf_lbtru_analysis_sqn, tvb, 0, 0, ENC_NA); PROTO_ITEM_SET_GENERATED(frame_tree_item); frame_tree = proto_item_add_subtree(frame_tree_item, ett_lbtru_transport_sqn); cb_data.tree = frame_tree; cb_data.tvb = tvb; cb_data.current_frame = pinfo->num; wmem_tree_foreach(sqn->frame, dissect_lbtru_sqn_frame_list_callback, (void *) &cb_data); } } if (frame->retransmission) { transport_item = proto_tree_add_boolean(transport_tree, hf_lbtru_analysis_data_retransmission, tvb, 0, 0, TRUE); PROTO_ITEM_SET_GENERATED(transport_item); expert_add_info(pinfo, transport_item, &ei_lbtru_analysis_data_rx); } if (frame->sqn_gap != 0) { transport_item = proto_tree_add_uint(transport_tree, hf_lbtru_analysis_data_sqn_gap, tvb, 0, 0, frame->sqn_gap); PROTO_ITEM_SET_GENERATED(transport_item); expert_add_info_format(pinfo, transport_item, &ei_lbtru_analysis_data_gap, "Data sequence gap (%" G_GUINT32_FORMAT ")", frame->sqn_gap); } if (frame->ooo_gap != 0) { transport_item = proto_tree_add_uint(transport_tree, hf_lbtru_analysis_data_ooo_gap, tvb, 0, 0, frame->ooo_gap); PROTO_ITEM_SET_GENERATED(transport_item); expert_add_info_format(pinfo, transport_item, &ei_lbtru_analysis_data_ooo, "Data sequence out of order gap (%" G_GUINT32_FORMAT ")", frame->ooo_gap); } if (frame->duplicate) { transport_item = proto_tree_add_boolean(transport_tree, hf_lbtru_analysis_data_duplicate, tvb, 0, 0, TRUE); PROTO_ITEM_SET_GENERATED(transport_item); expert_add_info(pinfo, transport_item, &ei_lbtru_analysis_data_dup); } break; case LBTRU_PACKET_TYPE_SM: if (frame->previous_type_frame != 0) { transport_item = proto_tree_add_uint(transport_tree, hf_lbtru_analysis_prev_sm_frame, tvb, 0, 0, frame->previous_type_frame); PROTO_ITEM_SET_GENERATED(transport_item); } if (frame->next_type_frame != 0) { transport_item = proto_tree_add_uint(transport_tree, hf_lbtru_analysis_next_sm_frame, tvb, 0, 0, frame->next_type_frame); PROTO_ITEM_SET_GENERATED(transport_item); } sqn = lbtru_client_transport_sqn_find(client, packet_type, packet_sqn); if (sqn != NULL) { if (sqn->frame_count > 1) { proto_tree * frame_tree = NULL; proto_item * frame_tree_item = NULL; lbtru_sqn_frame_list_callback_data_t cb_data; frame_tree_item = proto_tree_add_item(transport_tree, hf_lbtru_analysis_sqn, tvb, 0, 0, ENC_NA); PROTO_ITEM_SET_GENERATED(frame_tree_item); frame_tree = proto_item_add_subtree(frame_tree_item, ett_lbtru_transport_sqn); cb_data.tree = frame_tree; cb_data.tvb = tvb; cb_data.current_frame = pinfo->num; wmem_tree_foreach(sqn->frame, dissect_lbtru_sqn_frame_list_callback, (void *) &cb_data); } } if (frame->sqn_gap != 0) { transport_item = proto_tree_add_uint(transport_tree, hf_lbtru_analysis_sm_sqn_gap, tvb, 0, 0, frame->sqn_gap); PROTO_ITEM_SET_GENERATED(transport_item); expert_add_info_format(pinfo, transport_item, &ei_lbtru_analysis_sm_gap, "SM sequence gap (%" G_GUINT32_FORMAT ")", frame->sqn_gap); } if (frame->ooo_gap != 0) { transport_item = proto_tree_add_uint(transport_tree, hf_lbtru_analysis_sm_ooo_gap, tvb, 0, 0, frame->ooo_gap); PROTO_ITEM_SET_GENERATED(transport_item); expert_add_info_format(pinfo, transport_item, &ei_lbtru_analysis_sm_ooo, "SM sequence out of order gap (%" G_GUINT32_FORMAT ")", frame->ooo_gap); } if (frame->duplicate) { transport_item = proto_tree_add_boolean(transport_tree, hf_lbtru_analysis_sm_duplicate, tvb, 0, 0, TRUE); PROTO_ITEM_SET_GENERATED(transport_item); expert_add_info(pinfo, transport_item, &ei_lbtru_analysis_sm_dup); } break; case LBTRU_PACKET_TYPE_NAK: if (frame->previous_type_frame != 0) { transport_item = proto_tree_add_uint(transport_tree, hf_lbtru_analysis_prev_nak_frame, tvb, 0, 0, frame->previous_type_frame); PROTO_ITEM_SET_GENERATED(transport_item); } if (frame->next_type_frame != 0) { transport_item = proto_tree_add_uint(transport_tree, hf_lbtru_analysis_next_nak_frame, tvb, 0, 0, frame->next_type_frame); PROTO_ITEM_SET_GENERATED(transport_item); } break; case LBTRU_PACKET_TYPE_NCF: if (frame->previous_type_frame != 0) { transport_item = proto_tree_add_uint(transport_tree, hf_lbtru_analysis_prev_ncf_frame, tvb, 0, 0, frame->previous_type_frame); PROTO_ITEM_SET_GENERATED(transport_item); } if (frame->next_type_frame != 0) { transport_item = proto_tree_add_uint(transport_tree, hf_lbtru_analysis_next_ncf_frame, tvb, 0, 0, frame->next_type_frame); PROTO_ITEM_SET_GENERATED(transport_item); } break; case LBTRU_PACKET_TYPE_ACK: if (frame->previous_type_frame != 0) { transport_item = proto_tree_add_uint(transport_tree, hf_lbtru_analysis_prev_ack_frame, tvb, 0, 0, frame->previous_type_frame); PROTO_ITEM_SET_GENERATED(transport_item); } if (frame->next_type_frame != 0) { transport_item = proto_tree_add_uint(transport_tree, hf_lbtru_analysis_next_ack_frame, tvb, 0, 0, frame->next_type_frame); PROTO_ITEM_SET_GENERATED(transport_item); } break; case LBTRU_PACKET_TYPE_CREQ: if (frame->previous_type_frame != 0) { transport_item = proto_tree_add_uint(transport_tree, hf_lbtru_analysis_prev_creq_frame, tvb, 0, 0, frame->previous_type_frame); PROTO_ITEM_SET_GENERATED(transport_item); } if (frame->next_type_frame != 0) { transport_item = proto_tree_add_uint(transport_tree, hf_lbtru_analysis_next_creq_frame, tvb, 0, 0, frame->next_type_frame); PROTO_ITEM_SET_GENERATED(transport_item); } break; case LBTRU_PACKET_TYPE_RST: if (frame->previous_type_frame != 0) { transport_item = proto_tree_add_uint(transport_tree, hf_lbtru_analysis_prev_rst_frame, tvb, 0, 0, frame->previous_type_frame); PROTO_ITEM_SET_GENERATED(transport_item); } if (frame->next_type_frame != 0) { transport_item = proto_tree_add_uint(transport_tree, hf_lbtru_analysis_next_rst_frame, tvb, 0, 0, frame->next_type_frame); PROTO_ITEM_SET_GENERATED(transport_item); } break; default: break; } } } } if (tapinfo->transport != NULL) { tap_queue_packet(lbtru_tap_handle, pinfo, (void *) tapinfo); } return (total_dissected_len); } static gboolean test_lbtru_packet(tvbuff_t * tvb, packet_info * pinfo, proto_tree * tree, void * user_data) { gboolean valid_packet = FALSE; /* Must be a UDP packet. */ if (pinfo->ptype != PT_UDP) { return (FALSE); } /* Destination address must be IPV4 and 4 bytes in length. */ if ((pinfo->dst.type != AT_IPv4) || (pinfo->dst.len != 4)) { return (FALSE); } if (lbtru_use_tag) { if (lbtru_tag_find(pinfo) != NULL) { valid_packet = TRUE; } } else { /* Source port must be in the source port range and destination port must be in the receiver port range, or vice-versa. */ if (((pinfo->destport >= lbtru_source_port_low) && (pinfo->destport <= lbtru_source_port_high) && (pinfo->srcport >= lbtru_receiver_port_low) && (pinfo->srcport <= lbtru_receiver_port_high)) || ((pinfo->destport >= lbtru_receiver_port_low) && (pinfo->destport <= lbtru_receiver_port_high) && (pinfo->srcport >= lbtru_source_port_low) && (pinfo->srcport <= lbtru_source_port_high))) { /* One of ours. */ valid_packet = TRUE; } } if (valid_packet) { dissect_lbtru(tvb, pinfo, tree, user_data); return (TRUE); } /* Not one of ours. */ return (FALSE); } /* Register all the bits needed with the filtering engine */ void proto_register_lbtru(void) { static hf_register_info hf[] = { { &hf_lbtru_channel, { "Channel", "lbtru.channel", FT_NONE, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_lbtru_channel_id, { "Channel ID", "lbtru.channel.channel", FT_UINT64, BASE_HEX_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_lbtru_channel_client, { "Channel Client", "lbtru.channel.client", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_lbtru_tag, { "Tag", "lbtru.tag", FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_lbtru_hdr, { "Header", "lbtru.hdr", FT_NONE, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_lbtru_hdr_ver, { "Version", "lbtru.hdr.ver", FT_UINT8, BASE_DEC, NULL, LBTRU_HDR_VER_VER_MASK, NULL, HFILL } }, { &hf_lbtru_hdr_type, { "Type", "lbtru.hdr.type", FT_UINT8, BASE_HEX, VALS(lbtru_packet_type), LBTRU_HDR_VER_TYPE_MASK, NULL, HFILL } }, { &hf_lbtru_hdr_next_hdr, { "Next Header", "lbtru.hdr.next_hdr", FT_UINT8, BASE_HEX, VALS(lbtru_next_header), 0x0, NULL, HFILL } }, { &hf_lbtru_hdr_res, { "Reserved", "lbtru.hdr.res", FT_UINT16, BASE_HEX, NULL, 0x0, NULL, HFILL } }, { &hf_lbtru_hdr_flags, { "Flags", "lbtru.hdr.flags", FT_UINT16, BASE_HEX, NULL, 0x0, NULL, HFILL } }, { &hf_lbtru_hdr_flags_rx, { "Retransmission", "lbtru.hdr.flags.rx", FT_BOOLEAN, L_LBTRU_HDR_T_FLAGS_OR_RES * 8, TFS(&tfs_set_notset), LBTRU_RETRANSMISSION_FLAG, NULL, HFILL } }, { &hf_lbtru_hdr_flags_syn, { "SYN", "lbtru.hdr.flags.syn", FT_BOOLEAN, L_LBTRU_HDR_T_FLAGS_OR_RES * 8, TFS(&tfs_set_notset), LBTRU_SM_SYN_FLAG, NULL, HFILL } }, { &hf_lbtru_hdr_request, { "Request", "lbtru.hdr.request", FT_UINT16, BASE_HEX, VALS(lbtru_creq_request), 0x0, NULL, HFILL } }, { &hf_lbtru_hdr_reason, { "Reason", "lbtru.hdr.reason", FT_UINT16, BASE_HEX, VALS(lbtru_rst_reason), 0x0, NULL, HFILL } }, { &hf_lbtru_data, { "Data Header", "lbtru.data", FT_NONE, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_lbtru_data_sqn, { "Sequence Number", "lbtru.data.sqn", FT_UINT32, BASE_HEX_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_lbtru_data_trail_sqn, { "Trailing Edge Sequence Number", "lbtru.data.trail", FT_UINT32, BASE_HEX_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_lbtru_sm, { "Session Message Header", "lbtru.sm", FT_NONE, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_lbtru_sm_sqn, { "Sequence Number", "lbtru.sm.sqn", FT_UINT32, BASE_HEX_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_lbtru_sm_lead_sqn, { "Leading Edge Sequence Number", "lbtru.sm.lead", FT_UINT32, BASE_HEX_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_lbtru_sm_trail_sqn, { "Trailing Edge Sequence Number", "lbtru.sm.trail", FT_UINT32, BASE_HEX_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_lbtru_nak, { "NAK Header", "lbtru.nak", FT_NONE, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_lbtru_nak_num, { "Number of NAKs", "lbtru.nak.num", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_lbtru_nak_format, { "Format", "lbtru.nak.format", FT_UINT16, BASE_DEC, VALS(lbtru_nak_format), LBTRU_NAK_HDR_FORMAT_MASK, NULL, HFILL } }, { &hf_lbtru_nak_list, { "NAK List", "lbtru.nak.list", FT_NONE, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_lbtru_nak_list_nak, { "NAK", "lbtru.nak.list.nak", FT_UINT32, BASE_DEC_HEX, NULL, 0x0, NULL, HFILL } }, { &hf_lbtru_ncf, { "NAK Confirmation Header", "lbtru.ncf", FT_NONE, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_lbtru_ncf_trail_sqn, { "Trailing Edge Sequence Number", "lbtru.ncf.trail", FT_UINT32, BASE_HEX_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_lbtru_ncf_num, { "Number of Individual NCFs", "lbtru.ncf.num", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_lbtru_ncf_reserved, { "Reserved", "lbtru.ncf.reserved", FT_UINT8, BASE_HEX_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_lbtru_ncf_reason, { "Reason", "lbtru.ncf.reason", FT_UINT8, BASE_HEX, VALS(lbtru_ncf_reason), LBTRU_NCF_HDR_REASON_MASK, NULL, HFILL } }, { &hf_lbtru_ncf_format, { "Format", "lbtru.ncf.format", FT_UINT8, BASE_HEX, VALS(lbtru_ncf_format), LBTRU_NCF_HDR_FORMAT_MASK, NULL, HFILL } }, { &hf_lbtru_ncf_list, { "NCF List", "lbtru.ncf.list", FT_NONE, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_lbtru_ncf_list_ncf, { "NCF", "lbtru.ncf.list.ncf", FT_UINT32, BASE_DEC_HEX, NULL, 0x0, NULL, HFILL } }, { &hf_lbtru_ack, { "ACK Header", "lbtru.ack", FT_NONE, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_lbtru_ack_sqn, { "ACK Sequence Number", "lbtru.ack.sqn", FT_UINT32, BASE_HEX_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_lbtru_opt_sid, { "SID Option", "lbtru.opt_sid", FT_NONE, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_lbtru_opt_sid_next_hdr, { "Next Header", "lbtru.opt_sid.next_hdr", FT_UINT8, BASE_DEC_HEX, VALS(lbtru_next_header), 0x0, NULL, HFILL } }, { &hf_lbtru_opt_sid_hdr_len, { "Header Length", "lbtru.opt_sid.hdr_len", FT_UINT8, BASE_DEC_HEX, NULL, 0x0, NULL, HFILL } }, { &hf_lbtru_opt_sid_flags, { "Flags", "lbtru.opt_sid.flags", FT_UINT16, BASE_HEX, NULL, 0x0, NULL, HFILL } }, { &hf_lbtru_opt_sid_flags_ignore, { "Ignore", "lbtru.opt_sid.flags.ignore", FT_BOOLEAN, L_LBTRU_BASIC_OPT_T_RES * 8, &(tfs_set_notset), LBTRU_OPT_IGNORE, NULL, HFILL } }, { &hf_lbtru_opt_sid_session_id, { "Session ID", "lbtru.opt_sid.session_id", FT_UINT32, BASE_HEX, NULL, 0x0, NULL, HFILL } }, { &hf_lbtru_opt_cid, { "CID Option", "lbtru.opt_cid", FT_NONE, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_lbtru_opt_cid_next_hdr, { "Next Header", "lbtru.opt_cid.next_hdr", FT_UINT8, BASE_DEC_HEX, VALS(lbtru_next_header), 0x0, NULL, HFILL } }, { &hf_lbtru_opt_cid_hdr_len, { "Header Length", "lbtru.opt_cid.hdr_len", FT_UINT8, BASE_DEC_HEX, NULL, 0x0, NULL, HFILL } }, { &hf_lbtru_opt_cid_flags, { "Flags", "lbtru.opt_cid.flags", FT_UINT16, BASE_HEX, NULL, 0x0, NULL, HFILL } }, { &hf_lbtru_opt_cid_flags_ignore, { "Ignore", "lbtru.opt_cid.flags.ignore", FT_BOOLEAN, L_LBTRU_BASIC_OPT_T_RES * 8, &(tfs_set_notset), LBTRU_OPT_IGNORE, NULL, HFILL } }, { &hf_lbtru_opt_cid_client_id, { "Client ID", "lbtru.opt_cid.client_id", FT_UINT32, BASE_HEX, NULL, 0x0, NULL, HFILL } }, { &hf_lbtru_opt_unknown, { "Unknown Option", "lbtru.opt_unknown", FT_NONE, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_lbtru_opt_unknown_next_hdr, { "Next Header", "lbtru.opt_unknown.next_hdr", FT_UINT8, BASE_DEC_HEX, VALS(lbtru_next_header), 0x0, NULL, HFILL } }, { &hf_lbtru_opt_unknown_hdr_len, { "Header Length", "lbtru.opt_unknown.hdr_len", FT_UINT8, BASE_DEC_HEX, NULL, 0x0, NULL, HFILL } }, { &hf_lbtru_analysis, { "Transport Analysis", "lbtru.analysis", FT_NONE, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_lbtru_analysis_prev_frame, { "Previous Transport Frame", "lbtru.analysis.prev_frame", FT_FRAMENUM, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_lbtru_analysis_prev_data_frame, { "Previous Transport DATA Frame", "lbtru.analysis.prev_data_frame", FT_FRAMENUM, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_lbtru_analysis_prev_sm_frame, { "Previous Transport SM Frame", "lbtru.analysis.prev_sm_frame", FT_FRAMENUM, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_lbtru_analysis_prev_nak_frame, { "Previous Transport NAK Frame", "lbtru.analysis.prev_nak_frame", FT_FRAMENUM, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_lbtru_analysis_prev_ncf_frame, { "Previous Transport NCF Frame", "lbtru.analysis.prev_ncf_frame", FT_FRAMENUM, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_lbtru_analysis_prev_ack_frame, { "Previous Transport ACK Frame", "lbtru.analysis.prev_ack_frame", FT_FRAMENUM, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_lbtru_analysis_prev_creq_frame, { "Previous Transport CREQ Frame", "lbtru.analysis.prev_creq_frame", FT_FRAMENUM, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_lbtru_analysis_prev_rst_frame, { "Previous Transport RST Frame", "lbtru.analysis.prev_rst_frame", FT_FRAMENUM, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_lbtru_analysis_next_frame, { "Next Transport Frame", "lbtru.analysis.next_frame", FT_FRAMENUM, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_lbtru_analysis_next_data_frame, { "Next Transport DATA Frame", "lbtru.analysis.next_data_frame", FT_FRAMENUM, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_lbtru_analysis_next_sm_frame, { "Next Transport SM Frame", "lbtru.analysis.next_sm_frame", FT_FRAMENUM, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_lbtru_analysis_next_nak_frame, { "Next Transport NAK Frame", "lbtru.analysis.next_nak_frame", FT_FRAMENUM, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_lbtru_analysis_next_ncf_frame, { "Next Transport NCF Frame", "lbtru.analysis.next_ncf_frame", FT_FRAMENUM, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_lbtru_analysis_next_ack_frame, { "Next Transport ACK Frame", "lbtru.analysis.next_ack_frame", FT_FRAMENUM, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_lbtru_analysis_next_creq_frame, { "Next Transport CREQ Frame", "lbtru.analysis.next_creq_frame", FT_FRAMENUM, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_lbtru_analysis_next_rst_frame, { "Next Transport RST Frame", "lbtru.analysis.next_rst_frame", FT_FRAMENUM, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_lbtru_analysis_sqn, { "SQN Also in", "lbtru.analysis.sqn", FT_NONE, BASE_NONE, NULL, 0x0, "Sequence number also appears in these frames", HFILL } }, { &hf_lbtru_analysis_sqn_frame, { "Frame", "lbtru.analysis.sqn.frame", FT_FRAMENUM, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_lbtru_analysis_data_retransmission, { "Frame is a Data Retransmission", "lbtru.analysis.data_retransmission", FT_BOOLEAN, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_lbtru_analysis_data_sqn_gap, { "Gap in Data Sequence", "lbtru.analysis.data_sqn_gap", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_lbtru_analysis_data_ooo_gap, { "Data Sequence Out of Order Gap", "lbtru.analysis.data_ooo_gap", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_lbtru_analysis_data_duplicate, { "Duplicate Data Frame", "lbtru.analysis.data_duplicate", FT_BOOLEAN, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_lbtru_analysis_sm_sqn_gap, { "Gap in SM Sequence", "lbtru.analysis.sm_sqn_gap", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_lbtru_analysis_sm_ooo_gap, { "SM Sequence Out of Order Gap", "lbtru.analysis.sm_ooo_gap", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_lbtru_analysis_sm_duplicate, { "Duplicate SM Frame", "lbtru.analysis.sm_duplicate", FT_BOOLEAN, BASE_NONE, NULL, 0x0, NULL, HFILL } }, }; static gint * ett[] = { &ett_lbtru, &ett_lbtru_channel, &ett_lbtru_hdr, &ett_lbtru_hdr_flags, &ett_lbtru_data, &ett_lbtru_sm, &ett_lbtru_nak, &ett_lbtru_nak_list, &ett_lbtru_ncf, &ett_lbtru_ncf_list, &ett_lbtru_ack, &ett_lbtru_opt, &ett_lbtru_opt_sid_flags, &ett_lbtru_opt_cid_flags, &ett_lbtru_transport, &ett_lbtru_transport_sqn, }; static ei_register_info ei[] = { { &ei_lbtru_analysis_unknown_type, { "lbtru.analysis.unknown_type", PI_MALFORMED, PI_ERROR, "Unrecognized type", EXPFILL } }, { &ei_lbtru_analysis_unknown_header, { "lbtru.analysis.unknown_header", PI_MALFORMED, PI_ERROR, "Unrecognized header", EXPFILL } }, { &ei_lbtru_analysis_zero_length_header, { "lbtru.analysis.zero_length_header", PI_MALFORMED, PI_ERROR, "Zero-length header", EXPFILL } }, { &ei_lbtru_analysis_ack, { "lbtru.analysis.ack", PI_SEQUENCE, PI_CHAT, "ACK", EXPFILL } }, { &ei_lbtru_analysis_ncf, { "lbtru.analysis.ncf", PI_SEQUENCE, PI_NOTE, "NCF", EXPFILL } }, { &ei_lbtru_analysis_ncf_ncf, { "lbtru.analysis.ncf.ncf", PI_SEQUENCE, PI_NOTE, "NCF", EXPFILL } }, { &ei_lbtru_analysis_nak, { "lbtru.analysis.nak", PI_SEQUENCE, PI_WARN, "NAK", EXPFILL } }, { &ei_lbtru_analysis_nak_nak, { "lbtru.analysis.nak.nak", PI_SEQUENCE, PI_WARN, "NAK", EXPFILL } }, { &ei_lbtru_analysis_sm, { "lbtru.analysis.sm", PI_SEQUENCE, PI_CHAT, "SM", EXPFILL } }, { &ei_lbtru_analysis_sm_syn, { "lbtru.analysis.sm.syn", PI_SEQUENCE, PI_CHAT, "SM SYN", EXPFILL } }, { &ei_lbtru_analysis_creq, { "lbtru.analysis.creq", PI_SEQUENCE, PI_CHAT, "Connection REQuest", EXPFILL } }, { &ei_lbtru_analysis_rst, { "lbtru.analysis.rst", PI_SEQUENCE, PI_CHAT, "ReSeT", EXPFILL } }, { &ei_lbtru_analysis_data_rx, { "lbtru.analysis.data.rx", PI_SEQUENCE, PI_NOTE, "Data retransmission", EXPFILL } }, { &ei_lbtru_analysis_data_gap, { "lbtru.analysis.data.gap", PI_SEQUENCE, PI_NOTE, "Data sequence gap", EXPFILL } }, { &ei_lbtru_analysis_data_ooo, { "lbtru.analysis.data.ooo", PI_SEQUENCE, PI_NOTE, "Data sequence out of order", EXPFILL } }, { &ei_lbtru_analysis_data_dup, { "lbtru.analysis.data.dup", PI_SEQUENCE, PI_NOTE, "Duplicate data", EXPFILL } }, { &ei_lbtru_analysis_sm_gap, { "lbtru.analysis.sm.gap", PI_SEQUENCE, PI_NOTE, "SM sequence gap", EXPFILL } }, { &ei_lbtru_analysis_sm_ooo, { "lbtru.analysis.sm.ooo", PI_SEQUENCE, PI_NOTE, "SM sequence out of order", EXPFILL } }, { &ei_lbtru_analysis_sm_dup, { "lbtru.analysis.sm.dup", PI_SEQUENCE, PI_NOTE, "Duplicate SM", EXPFILL } }, }; module_t * lbtru_module; uat_t * tag_uat; expert_module_t * expert_lbtru; proto_lbtru = proto_register_protocol("LBT Reliable Unicast Protocol", "LBT-RU", "lbtru"); proto_register_field_array(proto_lbtru, hf, array_length(hf)); proto_register_subtree_array(ett, array_length(ett)); expert_lbtru = expert_register_protocol(proto_lbtru); expert_register_field_array(expert_lbtru, ei, array_length(ei)); lbtru_module = prefs_register_protocol_subtree("29West", proto_lbtru, proto_reg_handoff_lbtru); prefs_register_uint_preference(lbtru_module, "source_port_low", "Source port range low (default " MAKESTRING(LBTRU_DEFAULT_SOURCE_PORT_LOW)")", "Set the low end of the LBT-RU source UDP port range (context transport_lbtru_port_low)", 10, &global_lbtru_source_port_low); prefs_register_uint_preference(lbtru_module, "source_port_high", "Source port range high (default " MAKESTRING(LBTRU_DEFAULT_SOURCE_PORT_HIGH)")", "Set the high end of the LBT-RU source UDP port range (context transport_lbtru_port_high)", 10, &global_lbtru_source_port_high); prefs_register_uint_preference(lbtru_module, "receiver_port_low", "Receiver port range low (default " MAKESTRING(LBTRU_DEFAULT_RECEIVER_PORT_LOW)")", "Set the low end of the LBT-RU receiver UDP port range (receiver transport_lbtru_port_low)", 10, &global_lbtru_receiver_port_low); prefs_register_uint_preference(lbtru_module, "receiver_port_high", "Receiver port range high (default " MAKESTRING(LBTRU_DEFAULT_RECEIVER_PORT_HIGH)")", "Set the high end of the LBT-RU receiver UDP port range (receiver transport_lbtru_port_high)", 10, &global_lbtru_receiver_port_high); lbtru_expert_separate_naks = global_lbtru_expert_separate_naks; prefs_register_bool_preference(lbtru_module, "expert_separate_naks", "Separate NAKs in Expert Info", "Separate multiple NAKs from a single packet into distinct Expert Info entries", &global_lbtru_expert_separate_naks); lbtru_expert_separate_ncfs = global_lbtru_expert_separate_ncfs; prefs_register_bool_preference(lbtru_module, "expert_separate_ncfs", "Separate NCFs in Expert Info", "Separate multiple NCFs from a single packet into distinct Expert Info entries", &global_lbtru_expert_separate_ncfs); lbtru_sequence_analysis = global_lbtru_sequence_analysis; prefs_register_bool_preference(lbtru_module, "sequence_analysis", "Perform Sequence Number Analysis", "Perform analysis on LBT-RU sequence numbers to determine out-of-order, gaps, loss, etc", &global_lbtru_sequence_analysis); prefs_register_bool_preference(lbtru_module, "use_lbtru_domain", "Use LBT-RU tag table", "Use table of LBT-RU tags to decode the packet instead of above values", &global_lbtru_use_tag); tag_uat = uat_new("LBT-RU tag definitions", sizeof(lbtru_tag_entry_t), "lbtru_domains", TRUE, (void * *)&lbtru_tag_entry, &lbtru_tag_count, UAT_AFFECTS_DISSECTION, NULL, lbtru_tag_copy_cb, lbtru_tag_update_cb, lbtru_tag_free_cb, NULL, NULL, lbtru_tag_array); prefs_register_uat_preference(lbtru_module, "tnw_lbtru_tags", "LBT-RU Tags", "A table to define LBT-RU tags", tag_uat); } /* The registration hand-off routine */ void proto_reg_handoff_lbtru(void) { static gboolean already_registered = FALSE; if (!already_registered) { lbtru_dissector_handle = create_dissector_handle(dissect_lbtru, proto_lbtru); dissector_add_for_decode_as_with_preference("udp.port", lbtru_dissector_handle); heur_dissector_add("udp", test_lbtru_packet, "LBT Reliable Unicast over UDP", "lbtru_udp", proto_lbtru, HEURISTIC_ENABLE); lbtru_tap_handle = register_tap("lbm_lbtru"); } /* Make sure the low source port is <= the high source port. If not, don't change them. */ if (global_lbtru_source_port_low <= global_lbtru_source_port_high) { lbtru_source_port_low = global_lbtru_source_port_low; lbtru_source_port_high = global_lbtru_source_port_high; } /* Make sure the low receiver port is <= the high receiver port. If not, don't change them. */ if (global_lbtru_receiver_port_low <= global_lbtru_receiver_port_high) { lbtru_receiver_port_low = global_lbtru_receiver_port_low; lbtru_receiver_port_high = global_lbtru_receiver_port_high; } lbtru_expert_separate_naks = global_lbtru_expert_separate_naks; lbtru_expert_separate_ncfs = global_lbtru_expert_separate_ncfs; lbtru_sequence_analysis = global_lbtru_sequence_analysis; lbtru_use_tag = global_lbtru_use_tag; already_registered = TRUE; } /* * 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: */