diff options
Diffstat (limited to 'epan/dissectors/file-blf.c')
| -rw-r--r-- | epan/dissectors/file-blf.c | 553 |
1 files changed, 553 insertions, 0 deletions
diff --git a/epan/dissectors/file-blf.c b/epan/dissectors/file-blf.c new file mode 100644 index 0000000000..9234bf7041 --- /dev/null +++ b/epan/dissectors/file-blf.c @@ -0,0 +1,553 @@ +/* file-blf.c + * BLF File Format. + * By Dr. Lars Voelker <lars.voelker@technica-engineering.de> + * Copyright 2020-2021 Dr. Lars Voelker + * + * Wireshark - Network traffic analyzer + * By Gerald Combs <gerald@wireshark.org> + * Copyright 1998 Gerald Combs + * + * SPDX-License-Identifier: GPL-2.0-or-later + * + * This dissector allows to parse BLF files. + */ + + /* + * The following was used as a reference for the file format: + * https://bitbucket.org/tobylorenz/vector_blf + * The repo above includes multiple examples files as well. + */ + +#include "config.h" + +#include <epan/packet.h> +#include <epan/prefs.h> +#include <epan/expert.h> +#include <epan/exceptions.h> +#include <epan/show_exception.h> +#include <epan/wmem/wmem.h> +#include <wiretap/blf.h> + +static int proto_blf = -1; + +static int hf_blf_file_header = -1; +static int hf_blf_file_header_magic = -1; +static int hf_blf_file_header_length = -1; +static int hf_blf_file_header_api = -1; +static int hf_blf_file_header_app = -1; +static int hf_blf_file_header_comp_level = -1; +static int hf_blf_file_header_app_major = -1; +static int hf_blf_file_header_app_minor = -1; +static int hf_blf_file_header_len_comp = -1; +static int hf_blf_file_header_len_uncomp = -1; +static int hf_blf_file_header_obj_count = -1; +static int hf_blf_file_header_app_build = -1; +static int hf_blf_file_header_start_date = -1; +static int hf_blf_file_header_end_date = -1; +static int hf_blf_file_header_restore_point_offset = -1; + +static int hf_blf_lobj = -1; +static int hf_blf_lobj_hdr = -1; +static int hf_blf_lobj_magic = -1; +static int hf_blf_lobj_hdr_len = -1; +static int hf_blf_lobj_hdr_type = -1; +static int hf_blf_lobj_obj_len = -1; +static int hf_blf_lobj_obj_type = -1; +static int hf_blf_lobj_hdr_remains = -1; +static int hf_blf_lobj_payload = -1; + +static int hf_blf_cont_comp_method = -1; +static int hf_blf_cont_res1 = -1; +static int hf_blf_cont_res2 = -1; +static int hf_blf_cont_uncomp_size = -1; +static int hf_blf_cont_res4 = -1; +static int hf_blf_cont_payload = -1; + +static gint ett_blf = -1; +static gint ett_blf_header = -1; +static gint ett_blf_obj = -1; +static gint ett_blf_obj_header = -1; +static gint ett_blf_logcontainer_payload = -1; + +static const value_string blf_object_names[] = { + { BLF_OBJTYPE_UNKNOWN, "Unknown" }, + { BLF_OBJTYPE_CAN_MESSAGE, "CAN Message" }, + { BLF_OBJTYPE_CAN_ERROR, "CAN Error" }, + { BLF_OBJTYPE_CAN_OVERLOAD, "CAN Overload" }, + { BLF_OBJTYPE_CAN_STATISTIC, "CAN Statistics" }, + { BLF_OBJTYPE_APP_TRIGGER, "App Trigger" }, + { BLF_OBJTYPE_ENV_INTEGER, "Env Integer" }, + { BLF_OBJTYPE_ENV_DOUBLE, "Env Double" }, + { BLF_OBJTYPE_ENV_STRING, "Env String" }, + { BLF_OBJTYPE_ENV_DATA, "Env Data" }, + { BLF_OBJTYPE_LOG_CONTAINER, "Log Container" }, + { BLF_OBJTYPE_LIN_MESSAGE, "LIN Message" }, + { BLF_OBJTYPE_LIN_CRC_ERROR, "LIN CRC Error" }, + { BLF_OBJTYPE_LIN_DLC_INFO, "LIN DLC Info" }, + { BLF_OBJTYPE_LIN_RCV_ERROR, "LIN Receive Error" }, + { BLF_OBJTYPE_LIN_SND_ERROR, "LIN Send Error" }, + { BLF_OBJTYPE_LIN_SLV_TIMEOUT, "LIN Slave Timeout" }, + { BLF_OBJTYPE_LIN_SCHED_MODCH, "LIN Schedule Mode Change" }, + { BLF_OBJTYPE_LIN_SYN_ERROR, "LIN Sync Error" }, + { BLF_OBJTYPE_LIN_BAUDRATE, "LIN Baudrate" }, + { BLF_OBJTYPE_LIN_SLEEP, "LIN Sleep" }, + { BLF_OBJTYPE_LIN_WAKEUP, "LIN Wakeup" }, + { BLF_OBJTYPE_MOST_SPY, "MOST Spy" }, + { BLF_OBJTYPE_MOST_CTRL, "MOST Control" }, + { BLF_OBJTYPE_MOST_LIGHTLOCK, "MOST Light Lock" }, + { BLF_OBJTYPE_MOST_STATISTIC, "MOST Statistics" }, + { BLF_OBJTYPE_FLEXRAY_DATA, "FlexRay Data" }, + { BLF_OBJTYPE_FLEXRAY_SYNC, "FlexRay Sync" }, + { BLF_OBJTYPE_CAN_DRIVER_ERROR, "CAN Driver Error" }, + { BLF_OBJTYPE_MOST_PKT, "MOST Packet" }, + { BLF_OBJTYPE_MOST_PKT2, "MOST Packet 2" }, + { BLF_OBJTYPE_MOST_HWMODE, "MOST Hardware Mode" }, + { BLF_OBJTYPE_MOST_REG, "MOST Register Data" }, + { BLF_OBJTYPE_MOST_GENREG, "MOST Register Data" }, + { BLF_OBJTYPE_MOST_NETSTATE, "MOST Net State" }, + { BLF_OBJTYPE_MOST_DATALOST, "MOST Data Lost" }, + { BLF_OBJTYPE_MOST_TRIGGER, "MOST Trigger" }, + { BLF_OBJTYPE_FLEXRAY_CYCLE, "FlexRay Cycle" }, + { BLF_OBJTYPE_FLEXRAY_MESSAGE, "FlexRay Message" }, + { BLF_OBJTYPE_LIN_CHECKSUM_INFO, "LIN Checksum Info" }, + { BLF_OBJTYPE_LIN_SPIKE_EVENT, "LIN Spike Event" }, + { BLF_OBJTYPE_CAN_DRIVER_SYNC, "CAN Driver Sync" }, + { BLF_OBJTYPE_FLEXRAY_STATUS, "FlexRay Status" }, + { BLF_OBJTYPE_GPS_EVENT, "GPS Event" }, + { BLF_OBJTYPE_FLEXRAY_ERROR, "FlexRay Error" }, + { BLF_OBJTYPE_FLEXRAY_STATUS, "FlexRay Status" }, + { BLF_OBJTYPE_FLEXRAY_STARTCYCLE, "FlexRay Start Cycle" }, + { BLF_OBJTYPE_FLEXRAY_RCVMESSAGE, "FlexRay Receive Message" }, + { BLF_OBJTYPE_REALTIMECLOCK, "Realtime Clock" }, + { BLF_OBJTYPE_LIN_STATISTIC, "LIN Statistics" }, + { BLF_OBJTYPE_J1708_MESSAGE, "J1708 Message" }, + { BLF_OBJTYPE_J1708_VIRTUAL_MSG, "J1708 Virtual Message" }, + { BLF_OBJTYPE_LIN_MESSAGE2, "LIN Message 2" }, + { BLF_OBJTYPE_LIN_SND_ERROR2, "LIN Send Error 2" }, + { BLF_OBJTYPE_LIN_SYN_ERROR2, "LIN Sync Error 2" }, + { BLF_OBJTYPE_LIN_CRC_ERROR2, "LIN CRC Error 2" }, + { BLF_OBJTYPE_LIN_RCV_ERROR2, "LIN Receive Error 2" }, + { BLF_OBJTYPE_LIN_WAKEUP2, "LIN Wakeup 2" }, + { BLF_OBJTYPE_LIN_SPIKE_EVENT2, "LIN Spike Event 2" }, + { BLF_OBJTYPE_LIN_LONG_DOM_SIG, "LIN Long Dominant Signal" }, + { BLF_OBJTYPE_APP_TEXT, "Text" }, + { BLF_OBJTYPE_FLEXRAY_RCVMESSAGE_EX, "FlexRay Receive Message Ext" }, + { BLF_OBJTYPE_MOST_STATISTICEX, "MOST Statistics Ext" }, + { BLF_OBJTYPE_MOST_TXLIGHT, "MOST TX Light" }, + { BLF_OBJTYPE_MOST_ALLOCTAB, "MOST Allocation Table" }, + { BLF_OBJTYPE_MOST_STRESS, "MOST Stress" }, + { BLF_OBJTYPE_ETHERNET_FRAME, "Ethernet Frame" }, + { BLF_OBJTYPE_SYS_VARIABLE, "System Variable" }, + { BLF_OBJTYPE_CAN_ERROR_EXT, "CAN Error Ext" }, + { BLF_OBJTYPE_CAN_DRIVER_ERROR_EXT, "CAN Driver Error Ext" }, + { BLF_OBJTYPE_LIN_LONG_DOM_SIG2, "LIN Long Dominant Signal 2" }, + { BLF_OBJTYPE_MOST_150_MESSAGE, "MOST150 Message" }, + { BLF_OBJTYPE_MOST_150_PKT, "MOST150 Packet" }, + { BLF_OBJTYPE_MOST_ETHERNET_PKT, "MOST Ethernet Packet" }, + { BLF_OBJTYPE_MOST_150_MESSAGE_FRAGMENT, "MOST150 Message Fragment" }, + { BLF_OBJTYPE_MOST_150_PKT_FRAGMENT, "MOST150 Packet Fragment" }, + { BLF_OBJTYPE_MOST_ETHERNET_PKT_FRAGMENT, "MOST Ethernet Packet Fragment" }, + { BLF_OBJTYPE_MOST_SYSTEM_EVENT, "MOST System Event" }, + { BLF_OBJTYPE_MOST_150_ALLOCTAB, "MOST150 Allocation Table" }, + { BLF_OBJTYPE_MOST_50_MESSAGE, "MOST50 Message" }, + { BLF_OBJTYPE_MOST_50_PKT, "MOST50 Packet" }, + { BLF_OBJTYPE_CAN_MESSAGE2, "CAN Message 2" }, + { BLF_OBJTYPE_LIN_UNEXPECTED_WAKEUP, "LIN Unexpected Wakeup" }, + { BLF_OBJTYPE_LIN_SHORT_OR_SLOW_RESPONSE, "LIN Short or Slow Response" }, + { BLF_OBJTYPE_LIN_DISTURBANCE_EVENT, "LIN Disturbance" }, + { BLF_OBJTYPE_SERIAL_EVENT, "Serial" }, + { BLF_OBJTYPE_OVERRUN_ERROR, "Overrun Error" }, + { BLF_OBJTYPE_EVENT_COMMENT, "Comment" }, + { BLF_OBJTYPE_WLAN_FRAME, "WLAN Frame" }, + { BLF_OBJTYPE_WLAN_STATISTIC, "WLAN Statistics" }, + { BLF_OBJTYPE_MOST_ECL, "MOST Electric Control Line" }, + { BLF_OBJTYPE_GLOBAL_MARKER, "Global Marker" }, + { BLF_OBJTYPE_AFDX_FRAME, "AFDX Frame" }, + { BLF_OBJTYPE_AFDX_STATISTIC, "AFDX Statistics" }, + { BLF_OBJTYPE_KLINE_STATUSEVENT, "KLINE Status" }, + { BLF_OBJTYPE_CAN_FD_MESSAGE, "CANFD Message" }, + { BLF_OBJTYPE_CAN_FD_MESSAGE_64, "CANFD Message 64" }, + { BLF_OBJTYPE_ETHERNET_RX_ERROR, "Ethernet RX Error" }, + { BLF_OBJTYPE_ETHERNET_STATUS, "Ethernet Status" }, + { BLF_OBJTYPE_CAN_FD_ERROR_64, "CANFD Error 64" }, + { BLF_OBJTYPE_AFDX_STATUS, "AFDX Status" }, + { BLF_OBJTYPE_AFDX_BUS_STATISTIC, "AFDX Bus Statistics" }, + { BLF_OBJTYPE_AFDX_ERROR_EVENT, "AFDX Error" }, + { BLF_OBJTYPE_A429_ERROR, "A429 Error" }, + { BLF_OBJTYPE_A429_STATUS, "A429 Status" }, + { BLF_OBJTYPE_A429_BUS_STATISTIC, "A429 Bus Statistics" }, + { BLF_OBJTYPE_A429_MESSAGE, "A429 Message" }, + { BLF_OBJTYPE_ETHERNET_STATISTIC, "Ethernet Statistics" }, + { BLF_OBJTYPE_TEST_STRUCTURE, "Test Structure" }, + { BLF_OBJTYPE_DIAG_REQUEST_INTERPRETATION, "Diagnostics Request Interpretation" }, + { BLF_OBJTYPE_ETHERNET_FRAME_EX, "Ethernet Frame Ext" }, + { BLF_OBJTYPE_ETHERNET_FRAME_FORWARDED, "Ethernet Frame Forwarded" }, + { BLF_OBJTYPE_ETHERNET_ERROR_EX, "Ethernet Error Ext" }, + { BLF_OBJTYPE_ETHERNET_ERROR_FORWARDED, "Ethernet Error Forwarded" }, + { BLF_OBJTYPE_FUNCTION_BUS, "Function Bus" }, + { BLF_OBJTYPE_DATA_LOST_BEGIN, "Data Lost Begin" }, + { BLF_OBJTYPE_DATA_LOST_END, "Data Lost End" }, + { BLF_OBJTYPE_WATER_MARK_EVENT, "Watermark" }, + { BLF_OBJTYPE_TRIGGER_CONDITION, "Trigger Condition" }, + { BLF_OBJTYPE_CAN_SETTING_CHANGED, "CAN Settings Changed" }, + { BLF_OBJTYPE_DISTRIBUTED_OBJECT_MEMBER, "Distributed Object Member" }, + { BLF_OBJTYPE_ATTRIBUTE_EVENT, "Attribute Event" }, + { 0, NULL } +}; + +static const value_string application_names[] = { + { 0, "Unknown" }, + { 1, "Vector CANalyzer" }, + { 2, "Vector CANoe" }, + { 3, "Vector CANstress" }, + { 4, "Vector CANlog" }, + { 5, "Vector CANape" }, + { 6, "Vector CANcaseXL log" }, + { 7, "Vector Logger Configurator" }, + { 200, "Porsche Logger" }, + { 201, "CAETEC Logger" }, + { 202, "Vector Network Simulator" }, + { 203, "IPETRONIK logger" }, + { 204, "RT PK" }, + { 205, "PikeTec" }, + { 206, "Sparks" }, + { 0, NULL } +}; + + +#define BLF_COMPRESSION_NONE 0 +#define BLF_COMPRESSION_ZLIB 2 + +static const value_string blf_compression_names[] = { + { BLF_COMPRESSION_NONE, "No Compression" }, + { BLF_COMPRESSION_ZLIB, "Compression ZLIB" }, + { 0, NULL } +}; + +void proto_register_file_blf(void); +void proto_reg_handoff_file_blf(void); +static int dissect_blf_next_object(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, gint offset); + +#define MAGIC_NUMBER_SIZE 4 +static const guint8 blf_file_magic[MAGIC_NUMBER_SIZE] = { 'L', 'O', 'G', 'G' }; +static const guint8 blf_lobj_magic[MAGIC_NUMBER_SIZE] = { 'L', 'O', 'B', 'J' }; + + +static proto_item * +dissect_blf_header_date(proto_tree *tree, int hf, tvbuff_t *tvb, gint offset, gint length) { + static const value_string weekday_names[] = { + { 0, "Sunday"}, + { 1, "Monday"}, + { 2, "Tuesday"}, + { 3, "Wednesday"}, + { 4, "Thursday"}, + { 5, "Friday"}, + { 6, "Saturday"}, + { 0, NULL } + }; + + guint16 year = tvb_get_guint16(tvb, offset + 0, ENC_LITTLE_ENDIAN); + guint16 month = tvb_get_guint16(tvb, offset + 2, ENC_LITTLE_ENDIAN); + guint16 day_of_week = tvb_get_guint16(tvb, offset + 4, ENC_LITTLE_ENDIAN); + guint16 day = tvb_get_guint16(tvb, offset + 6, ENC_LITTLE_ENDIAN); + guint16 hour = tvb_get_guint16(tvb, offset + 8, ENC_LITTLE_ENDIAN); + guint16 minute = tvb_get_guint16(tvb, offset + 10, ENC_LITTLE_ENDIAN); + guint16 sec = tvb_get_guint16(tvb, offset + 12, ENC_LITTLE_ENDIAN); + guint16 ms = tvb_get_guint16(tvb, offset + 14, ENC_LITTLE_ENDIAN); + + header_field_info *hfinfo = proto_registrar_get_nth(hf); + + return proto_tree_add_bytes_format(tree, hf, tvb, offset, length, NULL, + "%s: %s %d-%02d-%02d %02d:%02d:%02d.%03d", + hfinfo->name, + val_to_str(day_of_week, weekday_names, "%d"), + year, month, day, hour, minute, sec, ms); +} + +static proto_item * +dissect_blf_api_version(proto_tree *tree, int hf, tvbuff_t *tvb, gint offset, gint length) { + guint8 major = tvb_get_guint8(tvb, offset + 0); + guint8 minor = tvb_get_guint8(tvb, offset + 1); + guint8 build = tvb_get_guint8(tvb, offset + 2); + guint8 patch = tvb_get_guint8(tvb, offset + 3); + + header_field_info *hfinfo = proto_registrar_get_nth(hf); + + return proto_tree_add_bytes_format(tree, hf, tvb, offset, length, NULL, "%s: %d.%d.%d.%d", + hfinfo->name, major, minor, build, patch); +} + +static int +dissect_blf_lobj(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, gint offset_orig) { + proto_item *ti_root = NULL; + proto_item *ti = NULL; + proto_tree *objtree = NULL; + proto_tree *subtree = NULL; + volatile gint offset = offset_orig; + tvbuff_t *sub_tvb; + + guint hdr_length = tvb_get_guint16(tvb, offset_orig + 4, ENC_LITTLE_ENDIAN); + guint obj_length; + guint obj_type; + guint32 comp_method; + + /* this should never happen since we should only be called with at least 16 Bytes present */ + if (tvb_captured_length_remaining(tvb, offset_orig) < 16) { + return tvb_captured_length_remaining(tvb, offset_orig); + } + + ti_root = proto_tree_add_item(tree, hf_blf_lobj, tvb, offset, -1, ENC_NA); + objtree = proto_item_add_subtree(ti_root, ett_blf_obj); + + ti = proto_tree_add_item(objtree, hf_blf_lobj_hdr, tvb, offset, hdr_length, ENC_NA); + subtree = proto_item_add_subtree(ti, ett_blf_obj); + + proto_tree_add_item(subtree, hf_blf_lobj_magic, tvb, offset, 4, ENC_NA); + offset += 4; + proto_tree_add_item(subtree, hf_blf_lobj_hdr_len, tvb, offset, 2, ENC_LITTLE_ENDIAN); + offset += 2; + proto_tree_add_item(subtree, hf_blf_lobj_hdr_type, tvb, offset, 2, ENC_LITTLE_ENDIAN); + offset += 2; + proto_tree_add_item_ret_uint(subtree, hf_blf_lobj_obj_len, tvb, offset, 4, ENC_LITTLE_ENDIAN, &obj_length); + offset += 4; + proto_tree_add_item_ret_uint(subtree, hf_blf_lobj_obj_type, tvb, offset, 4, ENC_LITTLE_ENDIAN, &obj_type); + offset += 4; + + /* check if the whole object is present or if it was truncated */ + if (tvb_captured_length_remaining(tvb, offset_orig) < (gint)obj_length) { + proto_item_set_end(ti_root, tvb, offset_orig + tvb_captured_length_remaining(tvb, offset_orig)); + proto_item_append_text(ti_root, " TRUNCATED"); + return tvb_captured_length_remaining(tvb, offset_orig); + } + + proto_item_set_end(ti_root, tvb, offset_orig + obj_length); + proto_item_append_text(ti_root, " (%s)", val_to_str(obj_type, blf_object_names, "%d")); + + switch (obj_type) { + case BLF_OBJTYPE_LOG_CONTAINER: + proto_tree_add_item_ret_uint(objtree, hf_blf_cont_comp_method, tvb, offset, 2, ENC_LITTLE_ENDIAN, &comp_method); + offset += 2; + proto_tree_add_item(objtree, hf_blf_cont_res1, tvb, offset, 2, ENC_LITTLE_ENDIAN); + offset += 2; + proto_tree_add_item(objtree, hf_blf_cont_res2, tvb, offset, 4, ENC_LITTLE_ENDIAN); + offset += 4; + proto_tree_add_item(objtree, hf_blf_cont_uncomp_size, tvb, offset, 4, ENC_LITTLE_ENDIAN); + offset += 4; + proto_tree_add_item(objtree, hf_blf_cont_res4, tvb, offset, 4, ENC_LITTLE_ENDIAN); + offset += 4; + if (comp_method == BLF_COMPRESSION_NONE) { + sub_tvb = tvb_new_subset_length_caplen(tvb, offset, offset_orig + obj_length - offset, offset_orig + obj_length - offset); + } else { + sub_tvb = tvb_child_uncompress(tvb, tvb, offset, offset_orig + obj_length - offset); + if (sub_tvb) { + add_new_data_source(pinfo, sub_tvb, "Decompressed Data"); + } + } + + /* TODO: actually the objects might overlap containers, which we do not consider here... */ + if (sub_tvb) { + guint offset_sub = 0; + ti = proto_tree_add_item(objtree, hf_blf_cont_payload, sub_tvb, 0, offset_orig + obj_length - offset, ENC_NA); + subtree = proto_item_add_subtree(ti, ett_blf_logcontainer_payload); + + guint tmp = 42; + while ((offset_sub + 16 <= offset_orig + obj_length - offset) && (tmp > 0)) { + tmp = dissect_blf_next_object(sub_tvb, pinfo, subtree, offset_sub); + offset_sub += tmp; + } + } + break; + default: + if (offset - offset_orig < (gint)hdr_length) { + proto_tree_add_item(subtree, hf_blf_lobj_hdr_remains, tvb, offset, hdr_length - (offset - offset_orig), ENC_NA); + offset = offset_orig + hdr_length; + } + + proto_tree_add_item(objtree, hf_blf_lobj_payload, tvb, offset, obj_length - hdr_length, ENC_NA); + offset = offset_orig + obj_length; + break; + } + + return (gint)obj_length; +} + +static int +dissect_blf_next_object(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, gint offset) { + gint offset_orig = offset; + + while (tvb_captured_length_remaining(tvb, offset) >= 16) { + if (!tvb_memeql(tvb, offset, blf_lobj_magic, MAGIC_NUMBER_SIZE) == 0) { + offset += 1; + } else { + int bytes_parsed = dissect_blf_lobj(tvb, pinfo, tree, offset); + if (bytes_parsed <= 0) { + return 0; + } else { + offset += bytes_parsed; + } + } + } + + return offset - offset_orig; +} + + +static int +dissect_blf(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data _U_) { + volatile gint offset = 0; + proto_tree *blf_tree; + proto_tree *subtree; + proto_item *ti; + guint length; + + if (tvb_captured_length(tvb) < 8 || !tvb_memeql(tvb, 0, blf_file_magic, MAGIC_NUMBER_SIZE) == 0) { + /* does not start with LOGG, so this is not BLF it seems */ + return 0; + } + + ti = proto_tree_add_item(tree, proto_blf, tvb, offset, -1, ENC_NA); + blf_tree = proto_item_add_subtree(ti, ett_blf); + length = tvb_get_guint32(tvb, 4, ENC_LITTLE_ENDIAN); + + ti = proto_tree_add_item(blf_tree, hf_blf_file_header, tvb, offset, length, ENC_NA); + subtree = proto_item_add_subtree(ti, ett_blf_header); + + proto_tree_add_item(subtree, hf_blf_file_header_magic, tvb, offset, 4, ENC_NA); + offset += 4; + proto_tree_add_item(subtree, hf_blf_file_header_length, tvb, offset, 4, ENC_LITTLE_ENDIAN); + offset += 4; + dissect_blf_api_version(subtree, hf_blf_file_header_api, tvb, offset, 4); + offset += 4; + proto_tree_add_item(subtree, hf_blf_file_header_app, tvb, offset, 1, ENC_NA); + offset += 1; + proto_tree_add_item(subtree, hf_blf_file_header_comp_level, tvb, offset, 1, ENC_NA); + offset += 1; + proto_tree_add_item(subtree, hf_blf_file_header_app_major, tvb, offset, 1, ENC_NA); + offset += 1; + proto_tree_add_item(subtree, hf_blf_file_header_app_minor, tvb, offset, 1, ENC_NA); + offset += 1; + proto_tree_add_item(subtree, hf_blf_file_header_len_comp, tvb, offset, 8, ENC_LITTLE_ENDIAN); + offset += 8; + proto_tree_add_item(subtree, hf_blf_file_header_len_uncomp, tvb, offset, 8, ENC_LITTLE_ENDIAN); + offset += 8; + proto_tree_add_item(subtree, hf_blf_file_header_obj_count, tvb, offset, 4, ENC_LITTLE_ENDIAN); + offset += 4; + proto_tree_add_item(subtree, hf_blf_file_header_app_build, tvb, offset, 4, ENC_LITTLE_ENDIAN); + offset += 4; + dissect_blf_header_date(subtree, hf_blf_file_header_start_date, tvb, offset, 16); + offset += 16; + dissect_blf_header_date(subtree, hf_blf_file_header_end_date, tvb, offset, 16); + offset += 16; + proto_tree_add_item(subtree, hf_blf_file_header_restore_point_offset, tvb, offset, 4, ENC_LITTLE_ENDIAN); + offset += 8; + + offset += dissect_blf_next_object(tvb, pinfo, blf_tree, offset); + + return offset; +} + +static gboolean +dissect_blf_heur(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data _U_) { + return dissect_blf(tvb, pinfo, tree, NULL) > 0; +} + +void +proto_register_file_blf(void) { + static hf_register_info hf[] = { + { &hf_blf_file_header, + { "File Header", "blf.file_header", FT_NONE, BASE_NONE, NULL, 0x00, NULL, HFILL }}, + { &hf_blf_file_header_magic, + { "Magic", "blf.file_header.magic", FT_BYTES, BASE_NONE, NULL, 0x00, NULL, HFILL }}, + { &hf_blf_file_header_length, + { "Header Length", "blf.file_header.length", FT_UINT32, BASE_DEC, NULL, 0x00, NULL, HFILL }}, + { &hf_blf_file_header_api, + { "API Version", "blf.file_header.api", FT_BYTES, BASE_NONE, NULL, 0x00, NULL, HFILL }}, + { &hf_blf_file_header_app, + { "Application", "blf.file_header.application", FT_UINT8, BASE_DEC, VALS(application_names), 0x00, NULL, HFILL }}, + { &hf_blf_file_header_comp_level, + { "Compression Level", "blf.file_header.compression_level", FT_UINT8, BASE_DEC, NULL, 0x00, NULL, HFILL }}, + { &hf_blf_file_header_app_major, + { "Application Major Version", "blf.file_header.application_major", FT_UINT8, BASE_DEC, NULL, 0x00, NULL, HFILL }}, + { &hf_blf_file_header_app_minor, + { "Application Minor Version", "blf.file_header.application_minor", FT_UINT8, BASE_DEC, NULL, 0x00, NULL, HFILL }}, + { &hf_blf_file_header_len_comp, + { "Length (compressed)", "blf.file_header.length_compressed", FT_UINT64, BASE_DEC, NULL, 0x00, NULL, HFILL }}, + { &hf_blf_file_header_len_uncomp, + { "Length (uncompressed)", "blf.file_header.length_uncompressed", FT_UINT64, BASE_DEC, NULL, 0x00, NULL, HFILL }}, + { &hf_blf_file_header_obj_count, + { "Object Count", "blf.file_header.object_count", FT_UINT32, BASE_DEC, NULL, 0x00, NULL, HFILL }}, + { &hf_blf_file_header_app_build, + { "Application Build", "blf.file_header.application_build", FT_UINT32, BASE_DEC, NULL, 0x00, NULL, HFILL }}, + { &hf_blf_file_header_start_date, + { "Start Date", "blf.file_header.start_date", FT_BYTES, BASE_NONE, NULL, 0x00, NULL, HFILL }}, + { &hf_blf_file_header_end_date, + { "End Date", "blf.file_header.end_date", FT_BYTES, BASE_NONE, NULL, 0x00, NULL, HFILL }}, + { &hf_blf_file_header_restore_point_offset, + { "Restore Point Offset", "blf.file_header.restore_point_offset", FT_UINT64, BASE_DEC, NULL, 0x00, NULL, HFILL }}, + + { &hf_blf_lobj, + { "Object", "blf.object", FT_NONE, BASE_NONE, NULL, 0x00, NULL, HFILL }}, + { &hf_blf_lobj_hdr, + { "Object Header", "blf.object.header", FT_NONE, BASE_NONE, NULL, 0x00, NULL, HFILL }}, + { &hf_blf_lobj_magic, + { "Magic", "blf.object.header.magic", FT_BYTES, BASE_NONE, NULL, 0x00, NULL, HFILL }}, + { &hf_blf_lobj_hdr_len, + { "Header Length", "blf.object.header.header_length", FT_UINT16, BASE_DEC, NULL, 0x00, NULL, HFILL }}, + { &hf_blf_lobj_hdr_type, + { "Header Type", "blf.object.header.header_type", FT_UINT16, BASE_DEC, NULL, 0x00, NULL, HFILL }}, + { &hf_blf_lobj_obj_len, + { "Object Length", "blf.object.header.object_length", FT_UINT32, BASE_DEC, NULL, 0x00, NULL, HFILL }}, + { &hf_blf_lobj_obj_type, + { "Object Type", "blf.object.header.object_type", FT_UINT32, BASE_DEC, VALS(blf_object_names), 0x00, NULL, HFILL }}, + { &hf_blf_lobj_hdr_remains, + { "Header unparsed", "blf.object.header.unparsed", FT_BYTES, BASE_NONE, NULL, 0x00, NULL, HFILL }}, + { &hf_blf_lobj_payload, + { "Payload", "blf.object.payload", FT_BYTES, BASE_NONE, NULL, 0x00, NULL, HFILL }}, + + { &hf_blf_cont_comp_method, + { "Compression Method", "blf.object.logcontainer.compression_method", FT_UINT16, BASE_HEX, VALS(blf_compression_names), 0x00, NULL, HFILL }}, + { &hf_blf_cont_res1, + { "Reserved", "blf.object.logcontainer.res1", FT_UINT16, BASE_HEX, NULL, 0x00, NULL, HFILL }}, + { &hf_blf_cont_res2, + { "Reserved", "blf.object.logcontainer.res2", FT_UINT32, BASE_HEX, NULL, 0x00, NULL, HFILL }}, + { &hf_blf_cont_uncomp_size, + { "Uncompressed Length", "blf.object.logcontainer.uncompressed_length", FT_UINT32, BASE_DEC, NULL, 0x00, NULL, HFILL }}, + { &hf_blf_cont_res4, + { "Reserved", "blf.object.logcontainer.res4", FT_UINT32, BASE_HEX, NULL, 0x00, NULL, HFILL }}, + { &hf_blf_cont_payload, + { "Payload", "blf.object.logcontainer.payload", FT_BYTES, BASE_NONE, NULL, 0x00, NULL, HFILL }}, + + }; + + static gint *ett[] = { + &ett_blf, + &ett_blf_header, + &ett_blf_obj, + &ett_blf_obj_header, + &ett_blf_logcontainer_payload, + }; + + proto_blf = proto_register_protocol("BLF File Format", "File-BLF", "file-blf"); + proto_register_field_array(proto_blf, hf, array_length(hf)); + proto_register_subtree_array(ett, array_length(ett)); + + register_dissector("file-blf", dissect_blf, proto_blf); +} + +void +proto_reg_handoff_file_blf(void) { + heur_dissector_add("wtap_file", dissect_blf_heur, "BLF File", "blf_wtap", proto_blf, HEURISTIC_ENABLE); +} + +/* + * Editor modelines - https://www.wireshark.org/tools/modelines.html + * + * Local Variables: + * c-basic-offset: 4 + * tab-width: 8 + * indent-tabs-mode: nil + * End: + * + * ex: set shiftwidth=4 tabstop=8 expandtab: + * :indentSize=4:tabSize=8:noTabs=true: + */ |