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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-10 20:34:10 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-10 20:34:10 +0000 |
commit | e4ba6dbc3f1e76890b22773807ea37fe8fa2b1bc (patch) | |
tree | 68cb5ef9081156392f1dd62a00c6ccc1451b93df /epan/dissectors/packet-iso15765.c | |
parent | Initial commit. (diff) | |
download | wireshark-e4ba6dbc3f1e76890b22773807ea37fe8fa2b1bc.tar.xz wireshark-e4ba6dbc3f1e76890b22773807ea37fe8fa2b1bc.zip |
Adding upstream version 4.2.2.upstream/4.2.2
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'epan/dissectors/packet-iso15765.c')
-rw-r--r-- | epan/dissectors/packet-iso15765.c | 1344 |
1 files changed, 1344 insertions, 0 deletions
diff --git a/epan/dissectors/packet-iso15765.c b/epan/dissectors/packet-iso15765.c new file mode 100644 index 0000000..bd3ff61 --- /dev/null +++ b/epan/dissectors/packet-iso15765.c @@ -0,0 +1,1344 @@ +/* packet-iso15765.c + * Routines for iso15765 protocol packet disassembly + * + * Wireshark - Network traffic analyzer + * By Gerald Combs <gerald@wireshark.org> + * Copyright 1998 Gerald Combs + * + * SPDX-License-Identifier: GPL-2.0-or-later + */ + +/* + * Support for FlexRay variant, see: https://www.autosar.org/fileadmin/user_upload/standards/classic/20-11/AUTOSAR_SWS_FlexRayARTransportLayer.pdf + */ + +#include "config.h" + +#include <epan/packet.h> +#include <epan/prefs.h> +#include <epan/decode_as.h> +#include <epan/reassemble.h> +#include <epan/expert.h> +#include <epan/proto_data.h> +#include <epan/uat.h> +#include <wsutil/bits_ctz.h> + +#include "packet-socketcan.h" +#include "packet-lin.h" +#include "packet-flexray.h" +#include "packet-iso15765.h" +#include "packet-autosar-ipdu-multiplexer.h" +#include "packet-pdu-transport.h" + +void proto_register_iso15765(void); +void proto_reg_handoff_iso15765(void); + +#define ISO15765_PCI_LEN 1 +#define ISO15765_PCI_FD_SF_LEN 2 +#define ISO15765_PCI_FD_FF_LEN 6 + +#define ISO15765_MESSAGE_TYPE_MASK 0xF0 +#define ISO15765_MESSAGE_TYPES_SINGLE_FRAME 0 +#define ISO15765_MESSAGE_TYPES_FIRST_FRAME 1 +#define ISO15765_MESSAGE_TYPES_CONSECUTIVE_FRAME 2 +#define ISO15765_MESSAGE_TYPES_FLOW_CONTROL 3 +#define ISO15765_MESSAGE_TYPES_FR_SINGLE_FRAME_EXT 4 +#define ISO15765_MESSAGE_TYPES_FR_FIRST_FRAME_EXT 5 +#define ISO15765_MESSAGE_TYPES_FR_CONSECUTIVE_FRAME_2 6 +#define ISO15765_MESSAGE_TYPES_FR_ACK_FRAME 7 + +#define ISO15765_MESSAGE_DATA_LENGTH_MASK 0x0F +#define ISO15765_FD_MESSAGE_DATA_LENGTH_MASK 0x00FF +#define ISO15765_MESSAGE_EXTENDED_FRAME_LENGTH_MASK 0x0F +#define ISO15765_MESSAGE_FRAME_LENGTH_OFFSET (ISO15765_PCI_LEN) +#define ISO15765_MESSAGE_FRAME_LENGTH_LEN 1 +#define ISO15765_MESSAGE_SEQUENCE_NUMBER_MASK 0x0F +#define ISO15765_MESSAGE_FLOW_STATUS_MASK 0x0F + +#define ISO15765_FC_BS_OFFSET (ISO15765_PCI_LEN) +#define ISO15765_FC_BS_LEN 1 +#define ISO15765_FC_STMIN_OFFSET (ISO15765_FC_BS_OFFSET + ISO15765_FC_BS_LEN) +#define ISO15765_FC_STMIN_LEN 1 + +#define ISO15765_MESSAGE_AUTOSAR_ACK_MASK 0xF0 +#define ISO15765_AUTOSAR_ACK_OFFSET 3 + +#define ISO15765_ADDR_INVALID 0xffffffff + +struct iso15765_identifier +{ + guint32 id; + guint32 seq; + guint16 frag_id; + gboolean last; +}; + +typedef struct iso15765_identifier iso15765_identifier_t; + + +struct iso15765_frame +{ + guint32 seq; + guint32 offset; + guint32 len; + gboolean error; + gboolean complete; + guint16 last_frag_id; + guint8 frag_id_high[16]; +}; + +typedef struct iso15765_frame iso15765_frame_t; + +static const value_string iso15765_message_types[] = { + {ISO15765_MESSAGE_TYPES_SINGLE_FRAME, "Single Frame"}, + {ISO15765_MESSAGE_TYPES_FIRST_FRAME, "First Frame"}, + {ISO15765_MESSAGE_TYPES_CONSECUTIVE_FRAME, "Consecutive Frame"}, + {ISO15765_MESSAGE_TYPES_FLOW_CONTROL, "Flow control"}, + {ISO15765_MESSAGE_TYPES_FR_SINGLE_FRAME_EXT, "Single Frame Ext"}, + {ISO15765_MESSAGE_TYPES_FR_FIRST_FRAME_EXT, "First Frame Ext"}, + {ISO15765_MESSAGE_TYPES_FR_CONSECUTIVE_FRAME_2, "Consecutive Frame 2"}, + {ISO15765_MESSAGE_TYPES_FR_ACK_FRAME, "Ack Frame"}, + {0, NULL} +}; + +static const value_string iso15765_flow_status_types[] = { + {0, "Continue to Send"}, + {1, "Wait"}, + {2, "Overflow"}, + {0, NULL} +}; + +#define NORMAL_ADDRESSING 1 +#define EXTENDED_ADDRESSING 2 + +#define ZERO_BYTE_ADDRESSING 0 +#define ONE_BYTE_ADDRESSING 1 +#define TWO_BYTE_ADDRESSING 2 + +static gint addressing = NORMAL_ADDRESSING; +static gint flexray_addressing = ONE_BYTE_ADDRESSING; +static guint flexray_segment_size_limit = 0; +static guint window = 8; +static range_t *configured_can_ids= NULL; +static range_t *configured_ext_can_ids = NULL; +static gboolean register_lin_diag_frames = TRUE; +static range_t *configured_ipdum_pdu_ids = NULL; +static gint ipdum_addressing = ZERO_BYTE_ADDRESSING; + +/* Encoding */ +static const enum_val_t enum_addressing[] = { + {"normal", "Normal addressing", NORMAL_ADDRESSING}, + {"extended", "Extended addressing", EXTENDED_ADDRESSING}, + {NULL, NULL, 0} +}; + +/* Encoding */ +static const enum_val_t enum_flexray_addressing[] = { + {"1 Byte", "1 byte addressing", ONE_BYTE_ADDRESSING}, + {"2 Byte", "2 byte addressing", TWO_BYTE_ADDRESSING}, + {NULL, NULL, 0} +}; + +static const enum_val_t enum_ipdum_addressing[] = { + {"0 Byte", "0 byte addressing", ZERO_BYTE_ADDRESSING}, + {"1 Byte", "1 byte addressing", ONE_BYTE_ADDRESSING}, + {"2 Byte", "2 byte addressing", TWO_BYTE_ADDRESSING}, + {NULL, NULL, 0} +}; + +static int hf_iso15765_address = -1; +static int hf_iso15765_target_address = -1; +static int hf_iso15765_source_address = -1; +static int hf_iso15765_message_type = -1; +static int hf_iso15765_data_length = -1; +static int hf_iso15765_frame_length = -1; +static int hf_iso15765_sequence_number = -1; +static int hf_iso15765_flow_status = -1; + +static int hf_iso15765_fc_bs = -1; +static int hf_iso15765_fc_stmin = -1; +static int hf_iso15765_fc_stmin_in_us = -1; + +static int hf_iso15765_autosar_ack = -1; + +static gint ett_iso15765 = -1; + +static expert_field ei_iso15765_message_type_bad = EI_INIT; + +static int proto_iso15765 = -1; +static dissector_handle_t iso15765_handle_can = NULL; +static dissector_handle_t iso15765_handle_lin = NULL; +static dissector_handle_t iso15765_handle_flexray = NULL; +static dissector_handle_t iso15765_handle_ipdum = NULL; +static dissector_handle_t iso15765_handle_pdu_transport = NULL; + +static dissector_table_t subdissector_table; + +static reassembly_table iso15765_reassembly_table; +static wmem_map_t *iso15765_frame_table = NULL; + +static int hf_iso15765_fragments = -1; +static int hf_iso15765_fragment = -1; +static int hf_iso15765_fragment_overlap = -1; +static int hf_iso15765_fragment_overlap_conflicts = -1; +static int hf_iso15765_fragment_multiple_tails = -1; +static int hf_iso15765_fragment_too_long_fragment = -1; +static int hf_iso15765_fragment_error = -1; +static int hf_iso15765_fragment_count = -1; +static int hf_iso15765_reassembled_in = -1; +static int hf_iso15765_reassembled_length = -1; + +static gint ett_iso15765_fragment = -1; +static gint ett_iso15765_fragments = -1; + +static const fragment_items iso15765_frag_items = { + /* Fragment subtrees */ + &ett_iso15765_fragment, + &ett_iso15765_fragments, + /* Fragment fields */ + &hf_iso15765_fragments, + &hf_iso15765_fragment, + &hf_iso15765_fragment_overlap, + &hf_iso15765_fragment_overlap_conflicts, + &hf_iso15765_fragment_multiple_tails, + &hf_iso15765_fragment_too_long_fragment, + &hf_iso15765_fragment_error, + &hf_iso15765_fragment_count, + /* Reassembled in field */ + &hf_iso15765_reassembled_in, + /* Reassembled length field */ + &hf_iso15765_reassembled_length, + /* Reassembled data field */ + NULL, + "ISO15765 fragments" +}; + +/* UAT for address encoded into CAN IDs */ +typedef struct config_can_addr_mapping { + gboolean extended_address; + guint32 can_id; + guint32 can_id_mask; + guint32 source_addr_mask; + guint32 target_addr_mask; + guint32 ecu_addr_mask; +} config_can_addr_mapping_t; + +static config_can_addr_mapping_t *config_can_addr_mappings = NULL; +static guint config_can_addr_mappings_num = 0; +#define DATAFILE_CAN_ADDR_MAPPING "ISO15765_can_id_mappings" + +UAT_BOOL_CB_DEF(config_can_addr_mappings, extended_address, config_can_addr_mapping_t) +UAT_HEX_CB_DEF(config_can_addr_mappings, can_id, config_can_addr_mapping_t) +UAT_HEX_CB_DEF(config_can_addr_mappings, can_id_mask, config_can_addr_mapping_t) +UAT_HEX_CB_DEF(config_can_addr_mappings, source_addr_mask, config_can_addr_mapping_t) +UAT_HEX_CB_DEF(config_can_addr_mappings, target_addr_mask, config_can_addr_mapping_t) +UAT_HEX_CB_DEF(config_can_addr_mappings, ecu_addr_mask, config_can_addr_mapping_t) + +static void * +copy_config_can_addr_mapping_cb(void *n, const void *o, size_t size _U_) { + config_can_addr_mapping_t *new_rec = (config_can_addr_mapping_t *)n; + const config_can_addr_mapping_t *old_rec = (const config_can_addr_mapping_t *)o; + + new_rec->extended_address = old_rec->extended_address; + new_rec->can_id = old_rec->can_id; + new_rec->can_id_mask = old_rec->can_id_mask; + new_rec->source_addr_mask = old_rec->source_addr_mask; + new_rec->target_addr_mask = old_rec->target_addr_mask; + new_rec->ecu_addr_mask = old_rec->ecu_addr_mask; + + return new_rec; +} + +static bool +update_config_can_addr_mappings(void *r, char **err) { + config_can_addr_mapping_t *rec = (config_can_addr_mapping_t *)r; + + if (rec->source_addr_mask == 0 && rec->target_addr_mask == 0 && rec->ecu_addr_mask == 0) { + *err = ws_strdup_printf("You need to define the ECU Mask OR Source Mask/Target Mask!"); + return FALSE; + } + + if ((rec->source_addr_mask != 0 || rec->target_addr_mask != 0) && rec->ecu_addr_mask != 0) { + *err = ws_strdup_printf("You can only use Source Address Mask/Target Address Mask OR ECU Address Mask! Not both at the same time!"); + return FALSE; + } + + if ((rec->source_addr_mask == 0 || rec->target_addr_mask == 0) && rec->ecu_addr_mask == 0) { + *err = ws_strdup_printf("You can only use Source Address Mask and Target Address Mask in combination!"); + return FALSE; + } + + if (rec->extended_address) { + if ((rec->source_addr_mask & ~CAN_EFF_MASK) != 0) { + *err = ws_strdup_printf("Source Address Mask covering bits not allowed for extended IDs (29bit)!"); + return FALSE; + } + if ((rec->target_addr_mask & ~CAN_EFF_MASK) != 0) { + *err = ws_strdup_printf("Target Address Mask covering bits not allowed for extended IDs (29bit)!"); + return FALSE; + } + if ((rec->ecu_addr_mask & ~CAN_EFF_MASK) != 0) { + *err = ws_strdup_printf("ECU Address Mask covering bits not allowed for extended IDs (29bit)!"); + return FALSE; + } + } else { + if ((rec->source_addr_mask & ~CAN_SFF_MASK) != 0) { + *err = ws_strdup_printf("Source Address Mask covering bits not allowed for standard IDs (11bit)!"); + return FALSE; + } + if ((rec->target_addr_mask & ~CAN_SFF_MASK) != 0) { + *err = ws_strdup_printf("Target Address Mask covering bits not allowed for standard IDs (11bit)!"); + return FALSE; + } + if ((rec->ecu_addr_mask & ~CAN_SFF_MASK) != 0) { + *err = ws_strdup_printf("ECU Address Mask covering bits not allowed for standard IDs (11bit)!"); + return FALSE; + } + } + + return TRUE; +} + +static void +free_config_can_addr_mappings(void *r _U_) { + /* do nothing right now */ +} + +static void +post_update_config_can_addr_mappings_cb(void) { + /* do nothing right now */ +} + +static guint16 +masked_guint16_value(const guint16 value, const guint16 mask) +{ + return (value & mask) >> ws_ctz(mask); +} + +static guint32 +masked_guint32_value(const guint32 value, const guint32 mask) +{ + return (value & mask) >> ws_ctz(mask); +} + +/* + * setting addresses to 0xffffffff, if not found or configured + * returning number of addresses (0: none, 1:ecu (both addr same), 2:source+target) + */ +static guint8 +find_config_can_addr_mapping(gboolean ext_id, guint32 can_id, guint32 *source_addr, guint32 *target_addr) { + config_can_addr_mapping_t *tmp = NULL; + guint32 i; + + if (source_addr == NULL || target_addr == NULL || config_can_addr_mappings == NULL) { + return 0; + } + + for (i = 0; i < config_can_addr_mappings_num; i++) { + if (config_can_addr_mappings[i].extended_address == ext_id && + (config_can_addr_mappings[i].can_id & config_can_addr_mappings[i].can_id_mask) == + (can_id & config_can_addr_mappings[i].can_id_mask)) { + tmp = &(config_can_addr_mappings[i]); + break; + } + } + + if (tmp != NULL) { + if (tmp->ecu_addr_mask != 0) { + *source_addr = masked_guint32_value(can_id, tmp->ecu_addr_mask); + *target_addr = *source_addr; + return 1; + } + if (tmp->source_addr_mask != 0 && tmp->target_addr_mask != 0) { + *source_addr = masked_guint32_value(can_id, tmp->source_addr_mask); + *target_addr = masked_guint32_value(can_id, tmp->target_addr_mask); + return 2; + } + } + + return 0; +} + + +/* UAT for PDU Transport config */ +typedef struct config_pdu_tranport_config { + guint32 pdu_id; + guint32 source_address_size; + guint32 source_address_fixed; + guint32 target_address_size; + guint32 target_address_fixed; + guint32 ecu_address_size; + guint32 ecu_address_fixed; +} config_pdu_transport_config_t; + +static config_pdu_transport_config_t *config_pdu_transport_config_items = NULL; +static guint config_pdu_transport_config_items_num = 0; +#define DATAFILE_PDU_TRANSPORT_CONFIG "ISO15765_pdu_transport_config" + +UAT_HEX_CB_DEF(config_pdu_transport_config_items, pdu_id, config_pdu_transport_config_t) +UAT_DEC_CB_DEF(config_pdu_transport_config_items, source_address_size, config_pdu_transport_config_t) +UAT_HEX_CB_DEF(config_pdu_transport_config_items, source_address_fixed, config_pdu_transport_config_t) +UAT_DEC_CB_DEF(config_pdu_transport_config_items, target_address_size, config_pdu_transport_config_t) +UAT_HEX_CB_DEF(config_pdu_transport_config_items, target_address_fixed, config_pdu_transport_config_t) +UAT_DEC_CB_DEF(config_pdu_transport_config_items, ecu_address_size, config_pdu_transport_config_t) +UAT_HEX_CB_DEF(config_pdu_transport_config_items, ecu_address_fixed, config_pdu_transport_config_t) + + +static void * +copy_config_pdu_transport_config_cb(void *n, const void *o, size_t size _U_) { + config_pdu_transport_config_t *new_rec = (config_pdu_transport_config_t *)n; + const config_pdu_transport_config_t *old_rec = (const config_pdu_transport_config_t *)o; + + new_rec->pdu_id = old_rec->pdu_id; + new_rec->source_address_size = old_rec->source_address_size; + new_rec->source_address_fixed = old_rec->source_address_fixed; + new_rec->target_address_size = old_rec->target_address_size; + new_rec->target_address_fixed = old_rec->target_address_fixed; + new_rec->ecu_address_size = old_rec->ecu_address_size; + new_rec->ecu_address_fixed = old_rec->ecu_address_fixed; + + return new_rec; +} + +static bool +update_config_pdu_transport_config_item(void *r, char **err) { + config_pdu_transport_config_t *rec = (config_pdu_transport_config_t *)r; + + gboolean source_address_configured = rec->source_address_size != 0 || rec->source_address_fixed != ISO15765_ADDR_INVALID; + gboolean target_address_configured = rec->target_address_size != 0 || rec->target_address_fixed != ISO15765_ADDR_INVALID; + gboolean ecu_address_configured = rec->ecu_address_size != 0 || rec->ecu_address_fixed != ISO15765_ADDR_INVALID; + + if (rec->source_address_size != 0 && rec->source_address_fixed != ISO15765_ADDR_INVALID) { + *err = ws_strdup_printf("You can either set the size of the source address or configure a fixed value!"); + return FALSE; + } + + if (rec->target_address_size != 0 && rec->target_address_fixed != ISO15765_ADDR_INVALID) { + *err = ws_strdup_printf("You can either set the size of the target address or configure a fixed value!"); + return FALSE; + } + + if (rec->ecu_address_size != 0 && rec->ecu_address_fixed != ISO15765_ADDR_INVALID) { + *err = ws_strdup_printf("You can either set the size of the ecu address or configure a fixed value!"); + return FALSE; + } + + if (ecu_address_configured && (source_address_configured || target_address_configured)) { + *err = ws_strdup_printf("You cannot configure an ecu address and a source or target address at the same time!"); + return FALSE; + } + + if ((source_address_configured && !target_address_configured) || (!source_address_configured && target_address_configured)) { + *err = ws_strdup_printf("You can only configure source and target address at the same time but not only one of them!"); + return FALSE; + } + + return TRUE; +} + +static void +free_config_pdu_transport_config(void *r _U_) { + /* do nothing for now */ +} + +static void +reset_config_pdu_transport_config_cb(void) { + /* do nothing for now */ +} + +static void +post_update_config_pdu_transport_config_cb(void) { + dissector_delete_all("pdu_transport.id", iso15765_handle_pdu_transport); + + config_pdu_transport_config_t *tmp; + guint i; + for (i = 0; i < config_pdu_transport_config_items_num; i++) { + tmp = &(config_pdu_transport_config_items[i]); + dissector_add_uint("pdu_transport.id", tmp->pdu_id, iso15765_handle_pdu_transport); + } +} + +static config_pdu_transport_config_t * +find_pdu_transport_config(guint32 pdu_id) { + guint i; + for (i = 0; i < config_pdu_transport_config_items_num; i++) { + if (config_pdu_transport_config_items[i].pdu_id == pdu_id) { + return &(config_pdu_transport_config_items[i]); + } + } + + return NULL; +} + +static int +handle_pdu_transport_addresses(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, gint offset_orig, guint32 pdu_id, iso15765_info_t *iso15765data) { + gint offset = offset_orig; + config_pdu_transport_config_t *config = find_pdu_transport_config(pdu_id); + + iso15765data->number_of_addresses_valid = 0; + iso15765data->source_address = 0xffffffff; + iso15765data->target_address = 0xffffffff; + + if (config == NULL) { + return offset - offset_orig; + } + + guint32 tmp; + if (config->ecu_address_size != 0) { + proto_tree_add_item_ret_uint(tree, hf_iso15765_address, tvb, offset, config->ecu_address_size, ENC_BIG_ENDIAN, &tmp); + offset += config->ecu_address_size; + iso15765data->number_of_addresses_valid = 1; + iso15765data->source_address = tmp; + iso15765data->target_address = tmp; + return offset - offset_orig; + } + + if (config->ecu_address_fixed != ISO15765_ADDR_INVALID) { + iso15765data->number_of_addresses_valid = 1; + iso15765data->source_address = config->ecu_address_fixed; + iso15765data->target_address = config->ecu_address_fixed; + return offset - offset_orig; + } + + if (config->source_address_size == 0 && config->source_address_fixed == ISO15765_ADDR_INVALID && config->target_address_size == 0 && config->target_address_fixed == ISO15765_ADDR_INVALID) { + return offset - offset_orig; + } + + /* now we can only have two addresses! */ + iso15765data->number_of_addresses_valid = 2; + + if (config->source_address_size != 0) { + proto_tree_add_item_ret_uint(tree, hf_iso15765_source_address, tvb, offset, config->source_address_size, ENC_BIG_ENDIAN, &tmp); + offset += config->source_address_size; + iso15765data->source_address = tmp; + } else if (config->source_address_fixed != ISO15765_ADDR_INVALID) { + iso15765data->source_address = config->source_address_fixed; + } + + if (config->target_address_size != 0) { + proto_tree_add_item_ret_uint(tree, hf_iso15765_target_address, tvb, offset, config->target_address_size, ENC_BIG_ENDIAN, &tmp); + offset += config->target_address_size; + iso15765data->target_address = tmp; + } else if (config->target_address_fixed != ISO15765_ADDR_INVALID) { + iso15765data->target_address = config->target_address_fixed; + } + + return offset - offset_orig; +} + +static int +dissect_iso15765(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, guint32 bus_type, guint32 frame_id, guint32 frame_length) +{ + static guint32 msg_seqid = 0; + + proto_tree *iso15765_tree; + proto_item *ti; + proto_item *message_type_item; + tvbuff_t* next_tvb = NULL; + guint16 pci, message_type; + iso15765_identifier_t* iso15765_info; + /* LIN is always extended addressing */ + guint8 ae = (addressing == NORMAL_ADDRESSING && bus_type != ISO15765_TYPE_LIN) ? 0 : 1; + guint16 frag_id_low = 0; + guint32 offset; + gint32 data_length; + guint32 full_len; + gboolean fragmented = FALSE; + gboolean complete = FALSE; + + iso15765_info_t iso15765data; + + col_set_str(pinfo->cinfo, COL_PROTOCOL, "ISO15765"); + col_clear(pinfo->cinfo, COL_INFO); + + iso15765_info = (iso15765_identifier_t *)p_get_proto_data(wmem_file_scope(), pinfo, proto_iso15765, 0); + + if (!iso15765_info) { + iso15765_info = wmem_new0(wmem_file_scope(), iso15765_identifier_t); + iso15765_info->id = frame_id; + iso15765_info->last = FALSE; + p_add_proto_data(wmem_file_scope(), pinfo, proto_iso15765, 0, iso15765_info); + } + + ti = proto_tree_add_item(tree, proto_iso15765, tvb, 0, -1, ENC_NA); + iso15765_tree = proto_item_add_subtree(ti, ett_iso15765); + + iso15765data.bus_type = bus_type; + iso15765data.id = frame_id; + iso15765data.number_of_addresses_valid = 0; + + if (bus_type == ISO15765_TYPE_FLEXRAY) { + guint32 tmp; + proto_tree_add_item_ret_uint(iso15765_tree, hf_iso15765_source_address, tvb, 0, flexray_addressing, ENC_BIG_ENDIAN, &tmp); + iso15765data.source_address = (guint16)tmp; + proto_tree_add_item_ret_uint(iso15765_tree, hf_iso15765_target_address, tvb, flexray_addressing, flexray_addressing, ENC_BIG_ENDIAN, &tmp); + iso15765data.target_address = (guint16)tmp; + iso15765data.number_of_addresses_valid = 2; + ae = 2 * flexray_addressing; + } else if (bus_type == ISO15765_TYPE_IPDUM && ipdum_addressing > 0) { + guint32 tmp; + proto_tree_add_item_ret_uint(iso15765_tree, hf_iso15765_source_address, tvb, 0, ipdum_addressing, ENC_BIG_ENDIAN, &tmp); + iso15765data.source_address = (guint16)tmp; + proto_tree_add_item_ret_uint(iso15765_tree, hf_iso15765_target_address, tvb, ipdum_addressing, ipdum_addressing, ENC_BIG_ENDIAN, &tmp); + iso15765data.target_address = (guint16)tmp; + iso15765data.number_of_addresses_valid = 2; + ae = 2 * ipdum_addressing; + } else if (bus_type == ISO15765_TYPE_PDU_TRANSPORT) { + ae = handle_pdu_transport_addresses(tvb, pinfo, iso15765_tree, 0, frame_id, &iso15765data); + } else { + if (ae != 0) { + guint32 tmp; + iso15765data.number_of_addresses_valid = 1; + proto_tree_add_item_ret_uint(iso15765_tree, hf_iso15765_address, tvb, 0, ae, ENC_NA, &tmp); + iso15765data.source_address = (guint16)tmp; + iso15765data.target_address = (guint16)tmp; + } else { + /* Address implicitly encoded? */ + if (bus_type == ISO15765_TYPE_CAN || bus_type == ISO15765_TYPE_CAN_FD) { + gboolean ext_id = (CAN_EFF_FLAG & frame_id) == CAN_EFF_FLAG; + guint32 can_id = ext_id ? frame_id & CAN_EFF_MASK : frame_id & CAN_SFF_MASK; + iso15765data.number_of_addresses_valid = find_config_can_addr_mapping(ext_id, can_id, &(iso15765data.source_address), &(iso15765data.target_address)); + } + } + } + + message_type_item = proto_tree_add_item(iso15765_tree, hf_iso15765_message_type, tvb, + ae, ISO15765_PCI_LEN, ENC_BIG_ENDIAN); + + pci = tvb_get_guint8(tvb, ae); + message_type = masked_guint16_value(pci, ISO15765_MESSAGE_TYPE_MASK); + + col_add_str(pinfo->cinfo, COL_INFO, val_to_str(message_type, iso15765_message_types, "Unknown (0x%02x)")); + + switch(message_type) { + case ISO15765_MESSAGE_TYPES_SINGLE_FRAME: { + if (frame_length > 8 && (pci & ISO15765_MESSAGE_DATA_LENGTH_MASK) == 0) { + offset = ae + ISO15765_PCI_FD_SF_LEN; + data_length = tvb_get_guint8(tvb, ae + 1); + proto_tree_add_item(iso15765_tree, hf_iso15765_data_length, tvb, ae + 1, 1, ENC_BIG_ENDIAN); + } else { + offset = ae + ISO15765_PCI_LEN; + data_length = masked_guint16_value(pci, ISO15765_MESSAGE_DATA_LENGTH_MASK); + proto_tree_add_uint(iso15765_tree, hf_iso15765_data_length, tvb, ae, 1, data_length); + } + + next_tvb = tvb_new_subset_length(tvb, offset, data_length); + complete = TRUE; + + col_append_fstr(pinfo->cinfo, COL_INFO, "(Len: %d)", data_length); + break; + } + case ISO15765_MESSAGE_TYPES_FIRST_FRAME: { + pci = tvb_get_guint16(tvb, ae, ENC_BIG_ENDIAN); + if (pci == 0x1000) { + full_len = tvb_get_guint32(tvb, ae + 2, ENC_BIG_ENDIAN); + proto_tree_add_item(iso15765_tree, hf_iso15765_frame_length, tvb, ae + 2, 4, ENC_BIG_ENDIAN); + offset = ae + 2 + 4; + } else { + full_len = tvb_get_guint16(tvb, ae, ENC_BIG_ENDIAN) & 0xFFF; + proto_tree_add_uint(iso15765_tree, hf_iso15765_frame_length, tvb, ae, 2, full_len); + offset = ae + 2; + } + + data_length = tvb_reported_length(tvb) - offset; + if (bus_type == ISO15765_TYPE_FLEXRAY && flexray_segment_size_limit != 0 + && (guint32)data_length > flexray_segment_size_limit - (offset - ae)) { + data_length = flexray_segment_size_limit - (offset - ae); + } + + fragmented = TRUE; + frag_id_low = 0; + + /* Save information */ + if (!(pinfo->fd->visited)) { + iso15765_frame_t *iso15765_frame = wmem_new0(wmem_file_scope(), iso15765_frame_t); + iso15765_frame->seq = iso15765_info->seq = ++msg_seqid; + iso15765_frame->len = full_len; + + wmem_map_insert(iso15765_frame_table, GUINT_TO_POINTER(iso15765_info->seq), iso15765_frame); + } + + col_append_fstr(pinfo->cinfo, COL_INFO, "(Frame Len: %d)", full_len); + break; + } + case ISO15765_MESSAGE_TYPES_FR_CONSECUTIVE_FRAME_2: + case ISO15765_MESSAGE_TYPES_CONSECUTIVE_FRAME: { + offset = ae + ISO15765_PCI_LEN; + data_length = tvb_reported_length(tvb) - offset; + frag_id_low = masked_guint16_value(pci, ISO15765_MESSAGE_SEQUENCE_NUMBER_MASK); + fragmented = TRUE; + + if (bus_type == ISO15765_TYPE_FLEXRAY && flexray_segment_size_limit != 0 + && (guint32)data_length > flexray_segment_size_limit - (offset - ae)) { + data_length = flexray_segment_size_limit - (offset - ae); + } + + /* Save information */ + if (!(pinfo->fd->visited)) { + iso15765_info->seq = msg_seqid; + } + + proto_tree_add_item(iso15765_tree, hf_iso15765_sequence_number, + tvb, ae, ISO15765_PCI_LEN, ENC_BIG_ENDIAN); + col_append_fstr(pinfo->cinfo, COL_INFO, "(Seq: %d)", (pci & ISO15765_MESSAGE_DATA_LENGTH_MASK)); + break; + } + case ISO15765_MESSAGE_TYPES_FR_ACK_FRAME: + case ISO15765_MESSAGE_TYPES_FLOW_CONTROL: { + guint32 status = 0; + guint32 bs = 0; + guint32 stmin = 0; + gboolean stmin_in_us = FALSE; + data_length = 0; + + proto_tree_add_item_ret_uint(iso15765_tree, hf_iso15765_flow_status, tvb, ae, + ISO15765_PCI_LEN, ENC_BIG_ENDIAN, &status); + proto_tree_add_item_ret_uint(iso15765_tree, hf_iso15765_fc_bs, tvb, ae + ISO15765_FC_BS_OFFSET, + ISO15765_FC_BS_LEN, ENC_BIG_ENDIAN, &bs); + + stmin = tvb_get_guint8(tvb, ae + ISO15765_FC_STMIN_OFFSET); + if (stmin >= 0xF1 && stmin <= 0xF9) { + stmin_in_us = TRUE; + stmin = (stmin - 0xF0) * 100U; + proto_tree_add_uint(iso15765_tree, hf_iso15765_fc_stmin_in_us, tvb, ae + ISO15765_FC_STMIN_OFFSET, + ISO15765_FC_STMIN_LEN, stmin); + } else { + proto_tree_add_uint(iso15765_tree, hf_iso15765_fc_stmin, tvb, ae + ISO15765_FC_STMIN_OFFSET, + ISO15765_FC_STMIN_LEN, stmin); + } + + if (message_type == ISO15765_MESSAGE_TYPES_FR_ACK_FRAME) { + guint32 ack = 0; + guint32 sn = 0; + offset = ae + ISO15765_FC_STMIN_OFFSET + ISO15765_FC_STMIN_LEN; + + proto_tree_add_item_ret_uint(iso15765_tree, hf_iso15765_autosar_ack, tvb, offset, 1, ENC_BIG_ENDIAN, &ack); + proto_tree_add_item_ret_uint(iso15765_tree, hf_iso15765_sequence_number, tvb, offset, 1, ENC_BIG_ENDIAN, &sn); + + col_append_fstr(pinfo->cinfo, COL_INFO, "(Status: %d, Block size: 0x%x, Separation time minimum: %d %s, Ack: %d, Seq: %d)", + status, bs, stmin, stmin_in_us ? "µs" : "ms", ack, sn); + } else { + col_append_fstr(pinfo->cinfo, COL_INFO, "(Status: %d, Block size: 0x%x, Separation time minimum: %d %s)", + status, bs, stmin, stmin_in_us ? "µs" : "ms"); + } + break; + } + /* And now the AUTOSAR FlexRay TP Types... */ + case ISO15765_MESSAGE_TYPES_FR_SINGLE_FRAME_EXT: { + offset = ae + ISO15765_PCI_FD_SF_LEN; + data_length = tvb_get_guint8(tvb, ae + 1); + proto_tree_add_item(iso15765_tree, hf_iso15765_data_length, tvb, ae + 1, 1, ENC_BIG_ENDIAN); + + next_tvb = tvb_new_subset_length(tvb, offset, data_length); + complete = TRUE; + + /* Show some info */ + col_append_fstr(pinfo->cinfo, COL_INFO, "(Len: %d)", data_length); + break; + } + case ISO15765_MESSAGE_TYPES_FR_FIRST_FRAME_EXT: { + full_len = tvb_get_guint32(tvb, ae + 1, ENC_BIG_ENDIAN); + proto_tree_add_item(iso15765_tree, hf_iso15765_frame_length, tvb, ae + 1, 4, ENC_BIG_ENDIAN); + offset = ae + 1 + 4; + + data_length = tvb_reported_length(tvb) - offset; + if (bus_type == ISO15765_TYPE_FLEXRAY && flexray_segment_size_limit != 0 + && (guint32)data_length > flexray_segment_size_limit - (offset - ae)) { + data_length = flexray_segment_size_limit - (offset - ae); + } + + fragmented = TRUE; + frag_id_low = 0; + + /* Save information */ + if (!(pinfo->fd->visited)) { + iso15765_frame_t *iso15765_frame = wmem_new0(wmem_file_scope(), iso15765_frame_t); + iso15765_frame->seq = iso15765_info->seq = ++msg_seqid; + iso15765_frame->len = full_len; + + wmem_map_insert(iso15765_frame_table, GUINT_TO_POINTER(iso15765_info->seq), iso15765_frame); + } + + /* Show some info */ + col_append_fstr(pinfo->cinfo, COL_INFO, "(Frame Len: %d)", full_len); + break; + } + default: + expert_add_info_format(pinfo, message_type_item, &ei_iso15765_message_type_bad, + "Bad Message Type value %u <= 7", message_type); + return ae; + } + + /* Show data */ + if (data_length > 0) { + col_append_fstr(pinfo->cinfo, COL_INFO, " %s", + tvb_bytes_to_str_punct(pinfo->pool, tvb, offset, data_length, ' ')); + } + + if (fragmented) { + tvbuff_t *new_tvb = NULL; + iso15765_frame_t *iso15765_frame; + guint16 frag_id = frag_id_low; + /* Get frame information */ + iso15765_frame = (iso15765_frame_t *)wmem_map_lookup(iso15765_frame_table, + GUINT_TO_POINTER(iso15765_info->seq)); + + if (iso15765_frame != NULL) { + if (!(pinfo->fd->visited)) { + DISSECTOR_ASSERT(frag_id < 16); + guint16 tmp = iso15765_frame->frag_id_high[frag_id]++; + /* Make sure that we assert on using more than 4096 (16*255) segments.*/ + DISSECTOR_ASSERT(iso15765_frame->frag_id_high[frag_id] != 0); + frag_id += tmp * 16; + + /* Save the frag_id for subsequent dissection */ + iso15765_info->frag_id = frag_id; + + /* Check if there is an error in conversation */ + if (iso15765_info->frag_id + window < iso15765_frame->last_frag_id) { + /* Error in conversation */ + iso15765_frame->error = TRUE; + } + } + + if (!iso15765_frame->error) { + gboolean save_fragmented = pinfo->fragmented; + guint32 len = data_length; + fragment_head *frag_msg; + + /* Check if it's the last packet */ + if (!(pinfo->fd->visited)) { + /* Update the last_frag_id */ + if (frag_id > iso15765_frame->last_frag_id) { + iso15765_frame->last_frag_id = frag_id; + } + + iso15765_frame->offset += len; + if (iso15765_frame->offset >= iso15765_frame->len) { + iso15765_info->last = TRUE; + iso15765_frame->complete = TRUE; + len -= (iso15765_frame->offset - iso15765_frame->len); + } + } + pinfo->fragmented = TRUE; + + /* Add fragment to fragment table */ + frag_msg = fragment_add_seq_check(&iso15765_reassembly_table, tvb, offset, pinfo, iso15765_info->seq, NULL, + iso15765_info->frag_id, len, !iso15765_info->last); + + new_tvb = process_reassembled_data(tvb, offset, pinfo, "Reassembled Message", frag_msg, + &iso15765_frag_items, NULL, iso15765_tree); + + if (frag_msg && frag_msg->reassembled_in != pinfo->num) { + col_append_frame_number(pinfo, COL_INFO, " [Reassembled in #%u]", + frag_msg->reassembled_in); + } + + pinfo->fragmented = save_fragmented; + } + + if (new_tvb) { + /* This is a complete TVB to dissect */ + next_tvb = new_tvb; + complete = TRUE; + } else { + next_tvb = tvb_new_subset_length(tvb, offset, data_length); + } + } + } + + if (next_tvb) { + iso15765data.len = frame_length; + + if (!complete || !dissector_try_payload_new(subdissector_table, next_tvb, pinfo, tree, TRUE, &iso15765data)) { + call_data_dissector(next_tvb, pinfo, tree); + } + } + + return tvb_captured_length(tvb); +} + +static int +dissect_iso15765_can(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data) +{ + struct can_info can_info; + + DISSECTOR_ASSERT(data); + can_info = *((struct can_info*)data); + + if (can_info.id & (CAN_ERR_FLAG | CAN_RTR_FLAG)) { + /* Error and RTR frames are not for us. */ + return 0; + } + + if (can_info.fd) { + return dissect_iso15765(tvb, pinfo, tree, ISO15765_TYPE_CAN_FD, can_info.id, can_info.len); + } else { + return dissect_iso15765(tvb, pinfo, tree, ISO15765_TYPE_CAN, can_info.id, can_info.len); + } +} + +static int +dissect_iso15765_lin(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data) +{ + DISSECTOR_ASSERT(data); + + lin_info_t *lininfo = (lin_info_t *)data; + + return dissect_iso15765(tvb, pinfo, tree, ISO15765_TYPE_LIN, lininfo->id, lininfo->len); +} + +static int +dissect_iso15765_flexray(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data) +{ + DISSECTOR_ASSERT(data); + + flexray_info_t *flexray_id = (flexray_info_t *)data; + + guint32 id = (((guint32)flexray_id->id) << 16) | (((guint32)flexray_id->cc) << 8) | flexray_id->ch; + + return dissect_iso15765(tvb, pinfo, tree, ISO15765_TYPE_FLEXRAY, id, tvb_captured_length(tvb)); +} + +static int +dissect_iso15765_ipdum(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data) +{ + DISSECTOR_ASSERT(data); + + autosar_ipdu_multiplexer_info_t *ipdum_data = (autosar_ipdu_multiplexer_info_t *)data; + + return dissect_iso15765(tvb, pinfo, tree, ISO15765_TYPE_IPDUM, ipdum_data->pdu_id, tvb_captured_length(tvb)); +} + +static int +dissect_iso15765_pdu_transport(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data) +{ + DISSECTOR_ASSERT(data); + + pdu_transport_info_t *pdu_transport_data = (pdu_transport_info_t *)data; + + return dissect_iso15765(tvb, pinfo, tree, ISO15765_TYPE_PDU_TRANSPORT, pdu_transport_data->id, tvb_captured_length(tvb)); +} + +static void +update_config(void) +{ + if (iso15765_handle_lin != NULL) { + dissector_delete_all("lin.frame_id", iso15765_handle_lin); + if (register_lin_diag_frames) { + /* LIN specification states that 0x3c and 0x3d are for diagnostics */ + dissector_add_uint("lin.frame_id", LIN_DIAG_MASTER_REQUEST_FRAME, iso15765_handle_lin); + dissector_add_uint("lin.frame_id", LIN_DIAG_SLAVE_RESPONSE_FRAME, iso15765_handle_lin); + } + } + + if (iso15765_handle_can != NULL) { + dissector_delete_all("can.id", iso15765_handle_can); + dissector_delete_all("can.extended_id", iso15765_handle_can); + dissector_add_uint_range("can.id", configured_can_ids, iso15765_handle_can); + dissector_add_uint_range("can.extended_id", configured_ext_can_ids, iso15765_handle_can); + } + + if (iso15765_handle_ipdum != NULL) { + dissector_delete_all("ipdum.pdu.id", iso15765_handle_ipdum); + dissector_add_uint_range("ipdum.pdu.id", configured_ipdum_pdu_ids, iso15765_handle_ipdum); + } +} + +void +proto_register_iso15765(void) +{ + uat_t *config_can_addr_mapping_uat; + uat_t *config_pdu_transport_config_uat; + + static hf_register_info hf[] = { + { + &hf_iso15765_address, + { + "Address", "iso15765.address", + FT_UINT8, BASE_HEX, + NULL, 0, + NULL, HFILL + } + }, + { + &hf_iso15765_target_address, + { + "Target Address", "iso15765.target_address", + FT_UINT16, BASE_HEX, + NULL, 0, + NULL, HFILL + } + }, + { + &hf_iso15765_source_address, + { + "Source Address", "iso15765.source_address", + FT_UINT16, BASE_HEX, + NULL, 0, + NULL, HFILL + } + }, + { + &hf_iso15765_message_type, + { + "Message Type", "iso15765.message_type", + FT_UINT8, BASE_HEX, + VALS(iso15765_message_types), ISO15765_MESSAGE_TYPE_MASK, + NULL, HFILL + } + }, + { + &hf_iso15765_data_length, + { + "Data length", "iso15765.data_length", + FT_UINT32, BASE_DEC, + NULL, 0, + NULL, HFILL + } + }, + { + &hf_iso15765_frame_length, + { + "Frame length", "iso15765.frame_length", + FT_UINT32, BASE_DEC, + NULL, 0x0, + NULL, HFILL + } + }, + { + &hf_iso15765_sequence_number, + { + "Sequence number", "iso15765.sequence_number", + FT_UINT8, BASE_HEX, + NULL, ISO15765_MESSAGE_SEQUENCE_NUMBER_MASK, + NULL, HFILL + } + }, + { + &hf_iso15765_flow_status, + { + "Flow status", "iso15765.flow_status", + FT_UINT8, BASE_HEX, + VALS(iso15765_flow_status_types), ISO15765_MESSAGE_FLOW_STATUS_MASK, + NULL, HFILL + } + }, + + { + &hf_iso15765_fc_bs, + { + "Block size", "iso15765.flow_control.bs", + FT_UINT8, BASE_HEX, + NULL, 0x00, + NULL, HFILL + } + }, + { + &hf_iso15765_fc_stmin, + { + "Separation time minimum (ms)", "iso15765.flow_control.stmin", + FT_UINT8, BASE_DEC, + NULL, 0x00, + NULL, HFILL + } + }, + { + &hf_iso15765_fc_stmin_in_us, + { + "Separation time minimum (µs)", "iso15765.flow_control.stmin", + FT_UINT8, BASE_DEC, + NULL, 0x00, + NULL, HFILL + } + }, + { + &hf_iso15765_autosar_ack, + { + "Acknowledgement", "iso15765.autosar_ack.ack", + FT_UINT8, BASE_HEX, + NULL, ISO15765_MESSAGE_AUTOSAR_ACK_MASK, + NULL, HFILL + } + }, + + { + &hf_iso15765_fragments, + { + "Message fragments", "iso15765.fragments", + FT_NONE, BASE_NONE, + NULL, 0x00, + NULL, HFILL + }, + }, + { + &hf_iso15765_fragment, + { + "Message fragment", "iso15765.fragment", + FT_FRAMENUM, BASE_NONE, + NULL, 0x00, + NULL, HFILL + } + }, + { + &hf_iso15765_fragment_overlap, + { + "Message fragment overlap", "iso15765.fragment.overlap", + FT_BOOLEAN, 0, + NULL, 0x00, + NULL, HFILL + } + }, + { + &hf_iso15765_fragment_overlap_conflicts, + { + "Message fragment overlapping with conflicting data", "iso15765.fragment.overlap.conflicts", + FT_BOOLEAN, 0, + NULL, 0x00, + NULL, HFILL + } + }, + { + &hf_iso15765_fragment_multiple_tails, + { + "Message has multiple tail fragments", "iso15765.fragment.multiple_tails", + FT_BOOLEAN, 0, + NULL, 0x00, + NULL, HFILL + } + }, + { + &hf_iso15765_fragment_too_long_fragment, + { + "Message fragment too long", "iso15765.fragment.too_long_fragment", + FT_BOOLEAN, 0, NULL, + 0x00, NULL, HFILL + } + }, + { + &hf_iso15765_fragment_error, + { + "Message defragmentation error", "iso15765.fragment.error", + FT_FRAMENUM, BASE_NONE, + NULL, 0x00, + NULL, HFILL + } + }, + { + &hf_iso15765_fragment_count, + { + "Message fragment count", "iso15765.fragment.count", + FT_UINT32, BASE_DEC, + NULL, 0x00, + NULL, HFILL + } + }, + { + &hf_iso15765_reassembled_in, + { + "Reassembled in", "iso15765.reassembled.in", + FT_FRAMENUM, BASE_NONE, + NULL, 0x00, + NULL, HFILL + } + }, + { + &hf_iso15765_reassembled_length, + { + "Reassembled length", "iso15765.reassembled.length", + FT_UINT32, BASE_DEC, + NULL, 0x00, + NULL, HFILL + } + }, + }; + + /* Setup protocol subtree array */ + static gint *ett[] = + { + &ett_iso15765, + &ett_iso15765_fragment, + &ett_iso15765_fragments, + }; + + static ei_register_info ei[] = { + { + &ei_iso15765_message_type_bad, + { + "iso15765.message_type.bad", PI_MALFORMED, + PI_ERROR, "Bad Message Type value", EXPFILL + } + }, + }; + + module_t *iso15765_module; + expert_module_t* expert_iso15765; + + proto_iso15765 = proto_register_protocol ( + "ISO15765 Protocol", /* name */ + "ISO 15765", /* short name */ + "iso15765" /* abbrev */ + ); + register_dissector("iso15765", dissect_iso15765_lin, proto_iso15765); + expert_iso15765 = expert_register_protocol(proto_iso15765); + + proto_register_field_array(proto_iso15765, hf, array_length(hf)); + proto_register_subtree_array(ett, array_length(ett)); + + expert_register_field_array(expert_iso15765, ei, array_length(ei)); + + iso15765_module = prefs_register_protocol(proto_iso15765, update_config); + + prefs_register_enum_preference(iso15765_module, "addressing", + "Addressing", + "Addressing of ISO 15765. Normal or Extended", + &addressing, + enum_addressing, TRUE); + + prefs_register_uint_preference(iso15765_module, "window", + "Window", + "Window of ISO 15765 fragments", + 10, &window); + + prefs_register_static_text_preference(iso15765_module, "empty_can", "", NULL); + + range_convert_str(wmem_epan_scope(), &configured_can_ids, "", 0x7ff); + prefs_register_range_preference(iso15765_module, "can.ids", + "CAN IDs (standard)", + "ISO15765 bound standard CAN IDs", + &configured_can_ids, 0x7ff); + + range_convert_str(wmem_epan_scope(), &configured_ext_can_ids, "", 0x1fffffff); + prefs_register_range_preference(iso15765_module, "can.extended_ids", + "CAN IDs (extended)", + "ISO15765 bound extended CAN IDs", + &configured_ext_can_ids, 0x1fffffff); + + /* UATs for config_can_addr_mapping_uat */ + static uat_field_t config_can_addr_mapping_uat_fields[] = { + UAT_FLD_BOOL(config_can_addr_mappings, extended_address, "Ext. Addr.", "Extended Addressing (TRUE), Standard Addressing (FALSE)"), + UAT_FLD_HEX(config_can_addr_mappings, can_id, "CAN ID", "CAN ID (hex)"), + UAT_FLD_HEX(config_can_addr_mappings, can_id_mask, "CAN ID Mask", "CAN ID Mask (hex)"), + UAT_FLD_HEX(config_can_addr_mappings, source_addr_mask, "Source Addr Mask", "Bitmask to specify location of Source Address (hex)"), + UAT_FLD_HEX(config_can_addr_mappings, target_addr_mask, "Target Addr Mask", "Bitmask to specify location of Target Address (hex)"), + UAT_FLD_HEX(config_can_addr_mappings, ecu_addr_mask, "ECU Addr Mask", "Bitmask to specify location of ECU Address (hex)"), + UAT_END_FIELDS + }; + + config_can_addr_mapping_uat = uat_new("ISO15765 CAN ID Mapping", + sizeof(config_can_addr_mapping_t), /* record size */ + DATAFILE_CAN_ADDR_MAPPING, /* filename */ + TRUE, /* from profile */ + (void**)&config_can_addr_mappings, /* data_ptr */ + &config_can_addr_mappings_num, /* numitems_ptr */ + UAT_AFFECTS_DISSECTION, /* but not fields */ + NULL, /* help */ + copy_config_can_addr_mapping_cb, /* copy callback */ + update_config_can_addr_mappings, /* update callback */ + free_config_can_addr_mappings, /* free callback */ + post_update_config_can_addr_mappings_cb, /* post update callback */ + NULL, /* reset callback */ + config_can_addr_mapping_uat_fields /* UAT field definitions */ + ); + + prefs_register_uat_preference(iso15765_module, "_iso15765_can_id_mappings", "CAN ID Mappings", + "A table to define mappings rules for CAN IDs", config_can_addr_mapping_uat); + + prefs_register_static_text_preference(iso15765_module, "empty_lin", "", NULL); + prefs_register_bool_preference(iso15765_module, "lin_diag", + "Handle LIN Diagnostic Frames", + "Handle LIN Diagnostic Frames", + ®ister_lin_diag_frames); + + prefs_register_static_text_preference(iso15765_module, "empty_fr", "", NULL); + prefs_register_enum_preference(iso15765_module, "flexray_addressing", + "FlexRay Addressing", + "Addressing of FlexRay TP. 1 Byte or 2 Byte", + &flexray_addressing, + enum_flexray_addressing, TRUE); + + prefs_register_uint_preference(iso15765_module, "flexray_segment_size_limit", + "FlexRay Segment Cutoff", + "Segment Size Limit for first and consecutive frames of FlexRay (bytes after addresses)", + 10, &flexray_segment_size_limit); + + + prefs_register_static_text_preference(iso15765_module, "empty_ipdum", "", NULL); + range_convert_str(wmem_epan_scope(), &configured_ipdum_pdu_ids, "", 0xffffffff); + prefs_register_range_preference(iso15765_module, "ipdum.pdu.id", + "I-PduM PDU-IDs", + "I-PduM PDU-IDs", + &configured_ipdum_pdu_ids, 0xffffffff); + + prefs_register_enum_preference(iso15765_module, "ipdum_addressing", + "I-PduM Addressing", + "Addressing of I-PduM TP. 0, 1, or 2 Bytes", + &ipdum_addressing, + enum_ipdum_addressing, TRUE); + + prefs_register_static_text_preference(iso15765_module, "empty_pdu_transport", "", NULL); + + /* UATs for config_pdu_transport_uat */ + static uat_field_t config_pdu_transport_uat_fields[] = { + UAT_FLD_HEX(config_pdu_transport_config_items, pdu_id, "PDU ID", "PDU ID (hex)"), + UAT_FLD_DEC(config_pdu_transport_config_items, source_address_size, "Source Addr. Size", "Size of encoded source address (0, 1, 2 bytes)"), + UAT_FLD_HEX(config_pdu_transport_config_items, source_address_fixed, "Source Addr. Fixed", "Fixed source address for this PDU ID (hex), 0xffffffff is invalid"), + UAT_FLD_DEC(config_pdu_transport_config_items, target_address_size, "Target Addr. Size", "Size of encoded target address (0, 1, 2 bytes)"), + UAT_FLD_HEX(config_pdu_transport_config_items, target_address_fixed, "Target Addr. Fixed", "Fixed target address for this PDU ID (hex), 0xffffffff is invalid"), + UAT_FLD_DEC(config_pdu_transport_config_items, ecu_address_size, "Single Addr. Size", "Size of encoded address (0, 1, 2 bytes)"), + UAT_FLD_HEX(config_pdu_transport_config_items, ecu_address_fixed, "Single Addr. Fixed", "Fixed address for this PDU ID (hex), 0xffffffff is invalid"), + UAT_END_FIELDS + }; + + config_pdu_transport_config_uat = uat_new("ISO15765 PDU Transport Config", + sizeof(config_pdu_transport_config_t), /* record size */ + DATAFILE_PDU_TRANSPORT_CONFIG, /* filename */ + TRUE, /* from profile */ + (void**)&config_pdu_transport_config_items, /* data_ptr */ + &config_pdu_transport_config_items_num, /* numitems_ptr */ + UAT_AFFECTS_DISSECTION, /* but not fields */ + NULL, /* help */ + copy_config_pdu_transport_config_cb, /* copy callback */ + update_config_pdu_transport_config_item, /* update callback */ + free_config_pdu_transport_config, /* free callback */ + post_update_config_pdu_transport_config_cb, /* post update callback */ + reset_config_pdu_transport_config_cb, /* reset callback */ + config_pdu_transport_uat_fields /* UAT field definitions */ + ); + + prefs_register_uat_preference(iso15765_module, "_iso15765_pdu_transport_config", "PDU Transport Config", + "A table to define the PDU Transport Config", config_pdu_transport_config_uat); + + + iso15765_frame_table = wmem_map_new_autoreset(wmem_epan_scope(), wmem_file_scope(), g_direct_hash, g_direct_equal); + + reassembly_table_register(&iso15765_reassembly_table, &addresses_reassembly_table_functions); + + subdissector_table = register_decode_as_next_proto(proto_iso15765, "iso15765.subdissector", "ISO15765 next level dissector", NULL); +} + +void +proto_reg_handoff_iso15765(void) +{ + iso15765_handle_can = create_dissector_handle(dissect_iso15765_can, proto_iso15765); + iso15765_handle_lin = create_dissector_handle(dissect_iso15765_lin, proto_iso15765); + iso15765_handle_flexray = create_dissector_handle(dissect_iso15765_flexray, proto_iso15765); + iso15765_handle_ipdum = create_dissector_handle(dissect_iso15765_ipdum, proto_iso15765); + iso15765_handle_pdu_transport = create_dissector_handle(dissect_iso15765_pdu_transport, proto_iso15765); + dissector_add_for_decode_as("can.subdissector", iso15765_handle_can); + dissector_add_for_decode_as("flexray.subdissector", iso15765_handle_flexray); + update_config(); +} + +/* + * Editor modelines - https://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: + */ |