/* packet-socketcan.c * Routines for disassembly of packets from SocketCAN * Felix Obenhuber * * Added support for the DeviceNet Dissector * Hans-Joergen Gunnarsson * Copyright 2013 * * Wireshark - Network traffic analyzer * By Gerald Combs * Copyright 1998 Gerald Combs * * SPDX-License-Identifier: GPL-2.0-or-later */ #include "config.h" #include #include #include #include #include #include "packet-sll.h" #include "packet-socketcan.h" void proto_register_socketcan(void); void proto_reg_handoff_socketcan(void); static int hf_can_len = -1; static int hf_can_infoent_ext = -1; static int hf_can_infoent_std = -1; static int hf_can_extflag = -1; static int hf_can_rtrflag = -1; static int hf_can_errflag = -1; static int hf_can_reserved = -1; static int hf_can_padding = -1; static int hf_can_err_tx_timeout = -1; static int hf_can_err_lostarb = -1; static int hf_can_err_ctrl = -1; static int hf_can_err_prot = -1; static int hf_can_err_trx = -1; static int hf_can_err_ack = -1; static int hf_can_err_busoff = -1; static int hf_can_err_buserror = -1; static int hf_can_err_restarted = -1; static int hf_can_err_reserved = -1; static int hf_can_err_lostarb_bit_number = -1; static int hf_can_err_ctrl_rx_overflow = -1; static int hf_can_err_ctrl_tx_overflow = -1; static int hf_can_err_ctrl_rx_warning = -1; static int hf_can_err_ctrl_tx_warning = -1; static int hf_can_err_ctrl_rx_passive = -1; static int hf_can_err_ctrl_tx_passive = -1; static int hf_can_err_ctrl_active = -1; static int hf_can_err_prot_error_type_bit = -1; static int hf_can_err_prot_error_type_form = -1; static int hf_can_err_prot_error_type_stuff = -1; static int hf_can_err_prot_error_type_bit0 = -1; static int hf_can_err_prot_error_type_bit1 = -1; static int hf_can_err_prot_error_type_overload = -1; static int hf_can_err_prot_error_type_active = -1; static int hf_can_err_prot_error_type_tx = -1; static int hf_can_err_prot_error_location = -1; static int hf_can_err_trx_canh = -1; static int hf_can_err_trx_canl = -1; static int hf_can_err_ctrl_specific = -1; static expert_field ei_can_err_dlc_mismatch = EI_INIT; static int hf_canfd_brsflag = -1; static int hf_canfd_esiflag = -1; static gint ett_can = -1; static gint ett_can_fd = -1; static int proto_can = -1; static int proto_canfd = -1; static gboolean byte_swap = FALSE; static gboolean heuristic_first = FALSE; static heur_dissector_list_t heur_subdissector_list; static heur_dtbl_entry_t *heur_dtbl_entry; #define LINUX_CAN_STD 0 #define LINUX_CAN_EXT 1 #define LINUX_CAN_ERR 2 #define CAN_LEN_OFFSET 4 #define CAN_DATA_OFFSET 8 #define CANFD_FLAG_OFFSET 5 #define CANFD_BRS 0x01 /* bit rate switch (second bitrate for payload data) */ #define CANFD_ESI 0x02 /* error state indicator of the transmitting node */ static dissector_table_t subdissector_table; static dissector_handle_t socketcan_bigendian_handle; static dissector_handle_t socketcan_hostendian_handle; static dissector_handle_t socketcan_fd_handle; static const value_string frame_type_vals[] = { { LINUX_CAN_STD, "STD" }, { LINUX_CAN_EXT, "XTD" }, { LINUX_CAN_ERR, "ERR" }, { 0, NULL } }; static const value_string can_err_prot_error_location_vals[] = { { 0x00, "unspecified" }, { 0x02, "ID bits 28 - 21 (SFF: 10 - 3)" }, { 0x03, "start of frame" }, { 0x04, "substitute RTR (SFF: RTR)" }, { 0x05, "identifier extension" }, { 0x06, "ID bits 20 - 18 (SFF: 2 - 0)" }, { 0x07, "ID bits 17-13" }, { 0x08, "CRC sequence" }, { 0x09, "reserved bit 0" }, { 0x0A, "data section" }, { 0x0B, "data length code" }, { 0x0C, "RTR" }, { 0x0D, "reserved bit 1" }, { 0x0E, "ID bits 4-0" }, { 0x0F, "ID bits 12-5" }, { 0x12, "intermission" }, { 0x18, "CRC delimiter" }, { 0x19, "ACK slot" }, { 0x1A, "end of frame" }, { 0x1B, "ACK delimiter" }, { 0, NULL } }; static const value_string can_err_trx_canh_vals[] = { { 0x00, "unspecified" }, { 0x04, "no wire" }, { 0x05, "short to BAT" }, { 0x06, "short to VCC" }, { 0x07, "short to GND" }, { 0, NULL } }; static const value_string can_err_trx_canl_vals[] = { { 0x00, "unspecified" }, { 0x04, "no wire" }, { 0x05, "short to BAT" }, { 0x06, "short to VCC" }, { 0x07, "short to GND" }, { 0x08, "short to CANH" }, { 0, NULL } }; static int dissect_socketcan_common(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, guint encoding) { proto_tree *can_tree; proto_item *ti; guint8 frame_type; struct can_info can_info; int * const *can_flags; static int * const can_std_flags[] = { &hf_can_infoent_std, &hf_can_extflag, &hf_can_rtrflag, &hf_can_errflag, NULL, }; static int * const can_ext_flags[] = { &hf_can_infoent_ext, &hf_can_extflag, &hf_can_rtrflag, &hf_can_errflag, NULL, }; static int * const can_err_flags[] = { &hf_can_errflag, &hf_can_err_tx_timeout, &hf_can_err_lostarb, &hf_can_err_ctrl, &hf_can_err_prot, &hf_can_err_trx, &hf_can_err_ack, &hf_can_err_busoff, &hf_can_err_buserror, &hf_can_err_restarted, &hf_can_err_reserved, NULL, }; can_info.id = tvb_get_guint32(tvb, 0, encoding); can_info.len = tvb_get_guint8(tvb, CAN_LEN_OFFSET); can_info.fd = FALSE; /* Error Message Frames are only encapsulated in Classic CAN frames */ if (can_info.id & CAN_ERR_FLAG) { frame_type = LINUX_CAN_ERR; can_flags = can_err_flags; } else if (can_info.id & CAN_EFF_FLAG) { frame_type = LINUX_CAN_EXT; can_info.id &= (CAN_EFF_MASK | CAN_FLAG_MASK); can_flags = can_ext_flags; } else { frame_type = LINUX_CAN_STD; can_info.id &= (CAN_SFF_MASK | CAN_FLAG_MASK); can_flags = can_std_flags; } col_set_str(pinfo->cinfo, COL_PROTOCOL, "CAN"); col_clear(pinfo->cinfo, COL_INFO); ti = proto_tree_add_item(tree, proto_can, tvb, 0, -1, ENC_NA); can_tree = proto_item_add_subtree(ti, ett_can); proto_tree_add_bitmask_list(can_tree, tvb, 0, 4, can_flags, encoding); proto_tree_add_item(can_tree, hf_can_len, tvb, CAN_LEN_OFFSET, 1, ENC_NA); if (frame_type == LINUX_CAN_ERR && can_info.len != CAN_ERR_DLC) { proto_tree_add_expert(tree, pinfo, &ei_can_err_dlc_mismatch, tvb, CAN_LEN_OFFSET, 1); } proto_tree_add_item(can_tree, hf_can_reserved, tvb, CAN_LEN_OFFSET+1, 3, ENC_NA); if (frame_type == LINUX_CAN_ERR) { int * const *flag; const char *sepa = ": "; col_set_str(pinfo->cinfo, COL_INFO, "ERR"); for (flag = can_err_flags; *flag; flag++) { header_field_info *hfi; hfi = proto_registrar_get_nth(**flag); if (!hfi) continue; if ((can_info.id & hfi->bitmask & ~CAN_FLAG_MASK) == 0) continue; col_append_sep_str(pinfo->cinfo, COL_INFO, sepa, hfi->name); sepa = ", "; } if (can_info.id & CAN_ERR_LOSTARB) proto_tree_add_item(can_tree, hf_can_err_lostarb_bit_number, tvb, CAN_DATA_OFFSET+0, 1, ENC_NA); if (can_info.id & CAN_ERR_CTRL) { static int * const can_err_ctrl_flags[] = { &hf_can_err_ctrl_rx_overflow, &hf_can_err_ctrl_tx_overflow, &hf_can_err_ctrl_rx_warning, &hf_can_err_ctrl_tx_warning, &hf_can_err_ctrl_rx_passive, &hf_can_err_ctrl_tx_passive, &hf_can_err_ctrl_active, NULL, }; proto_tree_add_bitmask_list(can_tree, tvb, CAN_DATA_OFFSET+1, 1, can_err_ctrl_flags, ENC_NA); } if (can_info.id & CAN_ERR_PROT) { static int * const can_err_prot_error_type_flags[] = { &hf_can_err_prot_error_type_bit, &hf_can_err_prot_error_type_form, &hf_can_err_prot_error_type_stuff, &hf_can_err_prot_error_type_bit0, &hf_can_err_prot_error_type_bit1, &hf_can_err_prot_error_type_overload, &hf_can_err_prot_error_type_active, &hf_can_err_prot_error_type_tx, NULL }; proto_tree_add_bitmask_list(can_tree, tvb, CAN_DATA_OFFSET+2, 1, can_err_prot_error_type_flags, ENC_NA); proto_tree_add_item(can_tree, hf_can_err_prot_error_location, tvb, CAN_DATA_OFFSET+3, 1, ENC_NA); } if (can_info.id & CAN_ERR_TRX) { proto_tree_add_item(can_tree, hf_can_err_trx_canh, tvb, CAN_DATA_OFFSET+4, 1, ENC_NA); proto_tree_add_item(can_tree, hf_can_err_trx_canl, tvb, CAN_DATA_OFFSET+4, 1, ENC_NA); } proto_tree_add_item(can_tree, hf_can_err_ctrl_specific, tvb, CAN_DATA_OFFSET+5, 3, ENC_NA); } else { tvbuff_t *next_tvb; col_add_fstr(pinfo->cinfo, COL_INFO, "%s: 0x%08x ", val_to_str(frame_type, frame_type_vals, "Unknown (0x%02x)"), (can_info.id & ~CAN_FLAG_MASK)); if (can_info.id & CAN_RTR_FLAG) { col_append_str(pinfo->cinfo, COL_INFO, "(Remote Transmission Request)"); } else { col_append_str(pinfo->cinfo, COL_INFO, tvb_bytes_to_str_punct(wmem_packet_scope(), tvb, CAN_DATA_OFFSET, can_info.len, ' ')); } next_tvb = tvb_new_subset_length(tvb, CAN_DATA_OFFSET, can_info.len); if (!dissector_try_payload_new(subdissector_table, next_tvb, pinfo, tree, TRUE, &can_info)) { call_data_dissector(next_tvb, pinfo, tree); } } if (tvb_captured_length_remaining(tvb, CAN_DATA_OFFSET+can_info.len) > 0) { proto_tree_add_item(can_tree, hf_can_padding, tvb, CAN_DATA_OFFSET+can_info.len, -1, ENC_NA); } return tvb_captured_length(tvb); } static int dissect_socketcan_bigendian(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_) { return dissect_socketcan_common(tvb, pinfo, tree, byte_swap ? ENC_LITTLE_ENDIAN : ENC_BIG_ENDIAN); } static int dissect_socketcan_hostendian(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_) { return dissect_socketcan_common(tvb, pinfo, tree, byte_swap ? ENC_ANTI_HOST_ENDIAN : ENC_HOST_ENDIAN); } static int dissect_socketcanfd_common(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, guint encoding) { proto_tree *can_tree; proto_item *ti; guint8 frame_type; struct can_info can_info; tvbuff_t* next_tvb; int * can_flags_fd[] = { &hf_can_infoent_ext, &hf_can_extflag, NULL, }; static int * const canfd_flag_fields[] = { &hf_canfd_brsflag, &hf_canfd_esiflag, NULL, }; can_info.id = tvb_get_guint32(tvb, 0, encoding); can_info.len = tvb_get_guint8(tvb, CAN_LEN_OFFSET); can_info.fd = TRUE; if (can_info.id & CAN_EFF_FLAG) { frame_type = LINUX_CAN_EXT; can_info.id &= (CAN_EFF_MASK | CAN_FLAG_MASK); } else { frame_type = LINUX_CAN_STD; can_info.id &= (CAN_SFF_MASK | CAN_FLAG_MASK); can_flags_fd[0] = &hf_can_infoent_std; } col_set_str(pinfo->cinfo, COL_PROTOCOL, "CANFD"); col_clear(pinfo->cinfo, COL_INFO); col_add_fstr(pinfo->cinfo, COL_INFO, "%s: 0x%08x %s", val_to_str(frame_type, frame_type_vals, "Unknown (0x%02x)"), (can_info.id & ~CAN_FLAG_MASK), tvb_bytes_to_str_punct(wmem_packet_scope(), tvb, CAN_DATA_OFFSET, can_info.len, ' ')); ti = proto_tree_add_item(tree, proto_canfd, tvb, 0, -1, ENC_NA); can_tree = proto_item_add_subtree(ti, ett_can_fd); proto_tree_add_bitmask_list(can_tree, tvb, 0, 4, can_flags_fd, encoding); proto_tree_add_item(can_tree, hf_can_len, tvb, CAN_LEN_OFFSET, 1, ENC_NA); proto_tree_add_bitmask_list(can_tree, tvb, CANFD_FLAG_OFFSET, 1, canfd_flag_fields, ENC_NA); proto_tree_add_item(can_tree, hf_can_reserved, tvb, CANFD_FLAG_OFFSET+1, 2, ENC_NA); next_tvb = tvb_new_subset_length(tvb, CAN_DATA_OFFSET, can_info.len); if(!heuristic_first) { if (!dissector_try_payload_new(subdissector_table, next_tvb, pinfo, tree, TRUE, &can_info)) { if(!dissector_try_heuristic(heur_subdissector_list, next_tvb, pinfo, tree, &heur_dtbl_entry, &can_info)) { call_data_dissector(next_tvb, pinfo, tree); } } } else { if (!dissector_try_heuristic(heur_subdissector_list, next_tvb, pinfo, tree, &heur_dtbl_entry, &can_info)) { if(!dissector_try_payload_new(subdissector_table, next_tvb, pinfo, tree, FALSE, &can_info)) { call_data_dissector(next_tvb, pinfo, tree); } } } if (tvb_captured_length_remaining(tvb, CAN_DATA_OFFSET+can_info.len) > 0) { proto_tree_add_item(can_tree, hf_can_padding, tvb, CAN_DATA_OFFSET+can_info.len, -1, ENC_NA); } return tvb_captured_length(tvb); } static int dissect_socketcan_fd(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_) { return dissect_socketcanfd_common(tvb, pinfo, tree, byte_swap ? ENC_ANTI_HOST_ENDIAN : ENC_HOST_ENDIAN); } void proto_register_socketcan(void) { static hf_register_info hf[] = { { &hf_can_infoent_ext, { "Identifier", "can.id", FT_UINT32, BASE_HEX, NULL, CAN_EFF_MASK, NULL, HFILL } }, { &hf_can_infoent_std, { "Identifier", "can.id", FT_UINT32, BASE_HEX, NULL, CAN_SFF_MASK, NULL, HFILL } }, { &hf_can_extflag, { "Extended Flag", "can.flags.xtd", FT_BOOLEAN, 32, NULL, CAN_EFF_FLAG, NULL, HFILL } }, { &hf_can_rtrflag, { "Remote Transmission Request Flag", "can.flags.rtr", FT_BOOLEAN, 32, NULL, CAN_RTR_FLAG, NULL, HFILL } }, { &hf_can_errflag, { "Error Message Flag", "can.flags.err", FT_BOOLEAN, 32, NULL, CAN_ERR_FLAG, NULL, HFILL } }, { &hf_can_len, { "Frame-Length", "can.len", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_can_reserved, { "Reserved", "can.reserved", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_can_padding, { "Padding", "can.padding", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_canfd_brsflag, { "Bit Rate Setting", "canfd.flags.brs", FT_BOOLEAN, 8, NULL, CANFD_BRS, NULL, HFILL } }, { &hf_canfd_esiflag, { "Error State Indicator", "canfd.flags.esi", FT_BOOLEAN, 8, NULL, CANFD_ESI, NULL, HFILL } }, { &hf_can_err_tx_timeout, { "Transmit timeout", "can.err.tx_timeout", FT_BOOLEAN, 32, NULL, CAN_ERR_TX_TIMEOUT, NULL, HFILL } }, { &hf_can_err_lostarb, { "Lost arbitration", "can.err.lostarb", FT_BOOLEAN, 32, NULL, CAN_ERR_LOSTARB, NULL, HFILL } }, { &hf_can_err_ctrl, { "Controller problems", "can.err.ctrl", FT_BOOLEAN, 32, NULL, CAN_ERR_CTRL, NULL, HFILL } }, { &hf_can_err_prot, { "Protocol violation", "can.err.prot", FT_BOOLEAN, 32, NULL, CAN_ERR_PROT, NULL, HFILL } }, { &hf_can_err_trx, { "Transceiver status", "can.err.trx", FT_BOOLEAN, 32, NULL, CAN_ERR_TRX, NULL, HFILL } }, { &hf_can_err_ack, { "No acknowledgement", "can.err.ack", FT_BOOLEAN, 32, NULL, CAN_ERR_ACK, NULL, HFILL } }, { &hf_can_err_busoff, { "Bus off", "can.err.busoff", FT_BOOLEAN, 32, NULL, CAN_ERR_BUSOFF, NULL, HFILL } }, { &hf_can_err_buserror, { "Bus error", "can.err.buserror", FT_BOOLEAN, 32, NULL, CAN_ERR_BUSERROR, NULL, HFILL } }, { &hf_can_err_restarted, { "Controller restarted", "can.err.restarted", FT_BOOLEAN, 32, NULL, CAN_ERR_RESTARTED, NULL, HFILL } }, { &hf_can_err_reserved, { "Reserved", "can.err.reserved", FT_UINT32, BASE_HEX, NULL, CAN_ERR_RESERVED, NULL, HFILL } }, { &hf_can_err_lostarb_bit_number, { "Lost arbitration in bit number", "can.err.lostarb.bitnum", FT_UINT8, BASE_DEC, NULL, 0, NULL, HFILL } }, { &hf_can_err_ctrl_rx_overflow, { "RX buffer overflow", "can.err.ctrl.rx_overflow", FT_BOOLEAN, 8, NULL, 0x01, NULL, HFILL } }, { &hf_can_err_ctrl_tx_overflow, { "TX buffer overflow", "can.err.ctrl.tx_overflow", FT_BOOLEAN, 8, NULL, 0x02, NULL, HFILL } }, { &hf_can_err_ctrl_rx_warning, { "Reached warning level for RX errors", "can.err.ctrl.rx_warning", FT_BOOLEAN, 8, NULL, 0x04, NULL, HFILL } }, { &hf_can_err_ctrl_tx_warning, { "Reached warning level for TX errors", "can.err.ctrl.tx_warning", FT_BOOLEAN, 8, NULL, 0x08, NULL, HFILL } }, { &hf_can_err_ctrl_rx_passive, { "Reached error passive status RX", "can.err.ctrl.rx_passive", FT_BOOLEAN, 8, NULL, 0x10, NULL, HFILL } }, { &hf_can_err_ctrl_tx_passive, { "Reached error passive status TX", "can.err.ctrl.tx_passive", FT_BOOLEAN, 8, NULL, 0x20, NULL, HFILL } }, { &hf_can_err_ctrl_active, { "Recovered to error active state", "can.err.ctrl.active", FT_BOOLEAN, 8, NULL, 0x40, NULL, HFILL } }, { &hf_can_err_prot_error_type_bit, { "Single bit error", "can.err.prot.type.bit", FT_BOOLEAN, 8, NULL, 0x01, NULL, HFILL } }, { &hf_can_err_prot_error_type_form, { "Frame format error", "can.err.prot.type.form", FT_BOOLEAN, 8, NULL, 0x02, NULL, HFILL } }, { &hf_can_err_prot_error_type_stuff, { "Bit stuffing error", "can.err.prot.type.stuff", FT_BOOLEAN, 8, NULL, 0x04, NULL, HFILL } }, { &hf_can_err_prot_error_type_bit0, { "Unable to send dominant bit", "can.err.prot.type.bit0", FT_BOOLEAN, 8, NULL, 0x08, NULL, HFILL } }, { &hf_can_err_prot_error_type_bit1, { "Unable to send recessive bit", "can.err.prot.type.bit1", FT_BOOLEAN, 8, NULL, 0x10, NULL, HFILL } }, { &hf_can_err_prot_error_type_overload, { "Bus overload", "can.err.prot.type.overload", FT_BOOLEAN, 8, NULL, 0x20, NULL, HFILL } }, { &hf_can_err_prot_error_type_active, { "Active error announcement", "can.err.prot.type.active", FT_BOOLEAN, 8, NULL, 0x40, NULL, HFILL } }, { &hf_can_err_prot_error_type_tx, { "Error occurred on transmission", "can.err.prot.type.tx", FT_BOOLEAN, 8, NULL, 0x80, NULL, HFILL } }, { &hf_can_err_prot_error_location, { "Protocol error location", "can.err.prot.location", FT_UINT8, BASE_DEC, VALS(can_err_prot_error_location_vals), 0, NULL, HFILL } }, { &hf_can_err_trx_canh, { "Transceiver CANH status", "can.err.trx.canh", FT_UINT8, BASE_DEC, VALS(can_err_trx_canh_vals), 0x0F, NULL, HFILL } }, { &hf_can_err_trx_canl, { "Transceiver CANL status", "can.err.trx.canl", FT_UINT8, BASE_DEC, VALS(can_err_trx_canl_vals), 0xF0, NULL, HFILL } }, { &hf_can_err_ctrl_specific, { "Controller specific data", "can.err.ctrl_specific", FT_BYTES, SEP_SPACE, NULL, 0, NULL, HFILL } }, }; /* Setup protocol subtree array */ static gint *ett[] = { &ett_can, &ett_can_fd }; static ei_register_info ei[] = { { &ei_can_err_dlc_mismatch, { "can.err.dlc_mismatch", PI_MALFORMED, PI_ERROR, "ERROR: DLC mismatch", EXPFILL } } }; module_t *can_module; proto_can = proto_register_protocol("Controller Area Network", "CAN", "can"); socketcan_bigendian_handle = register_dissector("can-bigendian", dissect_socketcan_bigendian, proto_can); socketcan_hostendian_handle = register_dissector("can-hostendian", dissect_socketcan_hostendian, proto_can); proto_canfd = proto_register_protocol("Controller Area Network FD", "CANFD", "canfd"); socketcan_fd_handle = register_dissector("canfd", dissect_socketcan_fd, proto_canfd); proto_register_field_array(proto_can, hf, array_length(hf)); proto_register_subtree_array(ett, array_length(ett)); expert_register_field_array(expert_register_protocol(proto_can), ei, array_length(ei)); can_module = prefs_register_protocol(proto_can, NULL); prefs_register_obsolete_preference(can_module, "protocol"); prefs_register_bool_preference(can_module, "byte_swap", "Byte-swap the CAN ID/flags field", "Whether the CAN ID/flags field should be byte-swapped", &byte_swap); prefs_register_bool_preference(can_module, "try_heuristic_first", "Try heuristic sub-dissectors first", "Try to decode a packet using an heuristic sub-dissector" " before using a sub-dissector registered to \"decode as\"", &heuristic_first); subdissector_table = register_decode_as_next_proto(proto_can, "can.subdissector", "CAN next level dissector", NULL); heur_subdissector_list = register_heur_dissector_list("can", proto_can); } void proto_reg_handoff_socketcan(void) { dissector_add_uint("wtap_encap", WTAP_ENCAP_SOCKETCAN, socketcan_bigendian_handle); dissector_add_uint("sll.ltype", LINUX_SLL_P_CAN, socketcan_hostendian_handle); dissector_add_uint("sll.ltype", LINUX_SLL_P_CANFD, socketcan_fd_handle); } /* * Editor modelines - https://www.wireshark.org/tools/modelines.html * * Local variables: * c-basic-offset: 8 * tab-width: 8 * indent-tabs-mode: t * End: * * vi: set shiftwidth=8 tabstop=8 noexpandtab: * :indentSize=8:tabSize=8:noTabs=false: */