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-rw-r--r--epan/dissectors/packet-locamation-im.c1286
1 files changed, 1286 insertions, 0 deletions
diff --git a/epan/dissectors/packet-locamation-im.c b/epan/dissectors/packet-locamation-im.c
new file mode 100644
index 0000000000..a8f5db2b63
--- /dev/null
+++ b/epan/dissectors/packet-locamation-im.c
@@ -0,0 +1,1286 @@
+/* packet-locamation-im.c
+ * Routines for Locamation Interface Modules packet disassembly.
+ *
+ * Copyright (c) 2022 Locamation BV.
+ *
+ * Wireshark - Network traffic analyzer
+ * By Gerald Combs <gerald@wireshark.org>
+ * Copyright 1998 Gerald Combs
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
+
+/*
+ * Locamation Interface Modules
+ *
+ * The modules send SNAP packets.
+ *
+ * Several types of IMs are supported:
+ * - Current Interface Module (CIM), version 1
+ * - Current Interface Module (CIM), version 2, revision 0
+ * - Voltage Interface Module (VIM), version 1
+ * - Voltage Interface Module (VIM), version 2, revision 0
+ */
+
+/* clang-format off */
+#include "config.h"
+#include <epan/packet.h>
+/* clang-format on */
+
+#include <epan/expert.h>
+#include <string.h>
+
+#include "packet-llc.h"
+
+#ifndef ETH_FRAME_LEN
+#define ETH_FRAME_LEN 1514 /* Max. octets in frame sans FCS */
+#endif
+
+/*
+ * ########################################################################
+ * #
+ * # Forward Declarations
+ * #
+ * ########################################################################
+ */
+
+void proto_register_locamation_im(void);
+void proto_reg_handoff_locamation_im(void);
+
+/*
+ * ########################################################################
+ * #
+ * # Defines
+ * #
+ * ########################################################################
+ */
+
+#define COMPANY_NAME "Locamation"
+#define COMPANY_OUI 0x0040d6
+
+#define COMPANY_IM_TEXT "Interface Module"
+
+#define COMPANY_PID_CALIBRATION 0x0000
+#define COMPANY_PID_IDENT 0xffff
+#define COMPANY_PID_SAMPLES_IM1 0x0002
+#define COMPANY_PID_SAMPLES_IM2R0 0x000e
+
+#define PROTOCOL_NAME_IM_CALIBRATION "CALIBRATION"
+#define PROTOCOL_NAME_IM_IDENT "IDENT"
+#define PROTOCOL_NAME_IM_SAMPLES_IM1 "SAMPLES - IM1"
+#define PROTOCOL_NAME_IM_SAMPLES_IM2R0 "SAMPLES - IM2R0"
+
+#define PROTOCOL_NAME_CALIBRATION (COMPANY_NAME " " COMPANY_IM_TEXT " " PROTOCOL_NAME_IM_CALIBRATION)
+#define PROTOCOL_NAME_IDENT (COMPANY_NAME " " COMPANY_IM_TEXT " " PROTOCOL_NAME_IM_IDENT)
+#define PROTOCOL_NAME_SAMPLES_IM1 (COMPANY_NAME " " COMPANY_IM_TEXT " " PROTOCOL_NAME_IM_SAMPLES_IM1)
+#define PROTOCOL_NAME_SAMPLES_IM2R0 (COMPANY_NAME " " COMPANY_IM_TEXT " " PROTOCOL_NAME_IM_SAMPLES_IM2R0)
+
+#define PROTOCOL_SHORTNAME_CALIBRATION PROTOCOL_NAME_IM_CALIBRATION
+#define PROTOCOL_SHORTNAME_IDENT PROTOCOL_NAME_IM_IDENT
+#define PROTOCOL_SHORTNAME_SAMPLES_IM1 PROTOCOL_NAME_IM_SAMPLES_IM1
+#define PROTOCOL_SHORTNAME_SAMPLES_IM2R0 PROTOCOL_NAME_IM_SAMPLES_IM2R0
+
+#define MASK_SAMPLES_CONTROL_TYPE 0x80
+#define MASK_SAMPLES_CONTROL_SIMULATED 0x40
+#define MASK_SAMPLES_CONTROL_VERSION 0x30
+#define MASK_SAMPLES_CONTROL_SEQUENCE_NUMBER 0x0f
+
+#define MASK_RANGES_SAMPLE_8 0xc000
+#define MASK_RANGES_SAMPLE_7 0x3000
+#define MASK_RANGES_SAMPLE_6 0x0c00
+#define MASK_RANGES_SAMPLE_5 0x0300
+#define MASK_RANGES_SAMPLE_4 0x00c0
+#define MASK_RANGES_SAMPLE_3 0x0030
+#define MASK_RANGES_SAMPLE_2 0x000c
+#define MASK_RANGES_SAMPLE_1 0x0003
+
+#define MASK_TIMESTAMP_ADDITIONAL_STATUS_HOLDOVER_STATE 0x01
+#define MASK_TIMESTAMP_ADDITIONAL_STATUS_MASTER_CLOCK_SWITCH 0x02
+
+/*
+ * ########################################################################
+ * #
+ * # PID Table
+ * #
+ * ########################################################################
+ */
+
+static const value_string company_pid_vals[] = {
+ {COMPANY_PID_CALIBRATION, PROTOCOL_NAME_IM_CALIBRATION},
+ {COMPANY_PID_IDENT, PROTOCOL_NAME_IM_IDENT},
+ {COMPANY_PID_SAMPLES_IM1, PROTOCOL_NAME_IM_SAMPLES_IM1},
+ {COMPANY_PID_SAMPLES_IM2R0, PROTOCOL_NAME_IM_SAMPLES_IM2R0},
+ {0, NULL}};
+
+/*
+ * ########################################################################
+ * #
+ * # Types
+ * #
+ * ########################################################################
+ */
+
+/*
+ * struct _sample_set_t {
+ * guint16 ranges;
+ * gint32 sample_1;
+ * gint32 sample_2;
+ * gint32 sample_3;
+ * gint32 sample_4;
+ * gint32 sample_5;
+ * gint32 sample_6;
+ * gint32 sample_7;
+ * gint32 sample_8;
+ * };
+ */
+#define SAMPLE_SET_SIZE 34
+
+/*
+ * struct _timestamp_t {
+ * guint8 sync_status;
+ * guint8 additional_status;
+ * guint32 sec;
+ * guint32 nsec;
+ * };
+ */
+#define TIMESTAMP_SIZE 10
+
+/*
+ * struct _timestamps_t {
+ * guint8 version;
+ * guint24 reserved;
+ * struct _timestamp_t timestamps[8];
+ * };
+ */
+#define TIMESTAMPS_SIZE 84
+
+/*
+ * ########################################################################
+ * #
+ * # Helpers
+ * #
+ * ########################################################################
+ */
+
+static void add_split_lines(packet_info *pinfo, tvbuff_t *tvb, int tvb_offset, proto_tree *tree, int hf) {
+ int offset = tvb_offset;
+ int next_offset;
+ while (tvb_offset_exists(tvb, offset)) {
+ int len = tvb_find_line_end(tvb, offset, -1, &next_offset, FALSE);
+ if (len == -1) {
+ break;
+ }
+
+ char *line = tvb_get_string_enc(pinfo->pool, tvb, offset, len, ENC_UTF_8);
+ proto_tree_add_string_format_value(tree, hf, tvb, offset, (next_offset - offset), line, "%s", line);
+ offset = next_offset;
+ }
+}
+
+/*
+ * ########################################################################
+ * #
+ * # CALIBRATION
+ * #
+ * ########################################################################
+ *
+ * Calibration Packets
+ *
+ * Calibration Packets are sent by IM1 sensors.
+ *
+ * The calibration packets are sent in a burst, with a header packet
+ * followed by a number of chunk packets. Both packet types start with a
+ * Sequence Number.
+ *
+ * The calibration file can be reconstructed by appending all chunk packets
+ * in the Sequence Number order.
+ *
+ * Sequence Number: 2 bytes, unsigned
+ * == 0: Header Packet
+ * != 0: Chunk Packet
+ *
+ * Header Packet
+ * =============
+ * Sequence Number : 2 bytes, unsigned (fixed value 0)
+ * First Sequence Number: 2 bytes, unsigned (fixed value 1)
+ * Last Sequence Number : 2 bytes, unsigned (N)
+ * Name : string
+ *
+ * Chunk Packet
+ * ============
+ * Sequence Number : 2 bytes, unsigned (1 <= Sequence Number <= N)
+ * Calibration Chunk: string
+ */
+
+static int hf_calibration_sequence_number;
+static int hf_calibration_first_sequence_number;
+static int hf_calibration_last_sequence_number;
+static int hf_calibration_name;
+static int hf_calibration_name_line;
+static int hf_calibration_chunk;
+static int hf_calibration_chunk_line;
+
+static hf_register_info protocol_registration_calibration[] = {
+ {&hf_calibration_sequence_number, {"Sequence Number", "locamation-im.calibration.sequence_number", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL}},
+ {&hf_calibration_first_sequence_number, {"First Sequence Number", "locamation-im.calibration.first_sequence_number", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL}},
+ {&hf_calibration_last_sequence_number, {"Last Sequence Number", "locamation-im.calibration.last_sequence_number", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL}},
+ {&hf_calibration_name, {"Name", "locamation-im.calibration.name", FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL}},
+ {&hf_calibration_name_line, {"Name Line", "locamation-im.calibration.name.line", FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL}},
+ {&hf_calibration_chunk, {"Chunk", "locamation-im.calibration.chunk", FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL}},
+ {&hf_calibration_chunk_line, {"Chunk Line", "locamation-im.calibration.chunk.line", FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL}}};
+
+static expert_field ei_calibration_header;
+
+static ei_register_info ei_calibration[] = {
+ {&ei_calibration_header, {"locamation-im.calibration.header", PI_SEQUENCE, PI_NOTE, "Header Packet", EXPFILL}}};
+
+static int h_protocol_calibration = -1;
+
+static gint ett_protocol_calibration;
+static gint ett_calibration_lines;
+
+static int dissect_calibration(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data _U_) {
+ col_set_str(pinfo->cinfo, COL_PROTOCOL, PROTOCOL_SHORTNAME_CALIBRATION);
+ col_set_str(pinfo->cinfo, COL_INFO, PROTOCOL_NAME_CALIBRATION);
+
+ proto_item *calibration_item = proto_tree_add_item(tree, h_protocol_calibration, tvb, 0, -1, ENC_NA);
+ proto_tree *calibration_item_subtree = proto_item_add_subtree(calibration_item, ett_protocol_calibration);
+
+ gint tvb_offset = 0;
+
+ /* Sequence Number */
+ gint item_size = 2;
+ tvb_ensure_bytes_exist(tvb, tvb_offset, item_size);
+ guint16 sequence_number = tvb_get_guint16(tvb, 0, ENC_BIG_ENDIAN);
+ if (sequence_number == 0) {
+ expert_add_info(pinfo, calibration_item, &ei_calibration_header);
+ }
+ proto_tree_add_item(calibration_item_subtree, hf_calibration_sequence_number, tvb, tvb_offset, item_size, ENC_BIG_ENDIAN);
+ tvb_offset += item_size;
+
+ if (sequence_number == 0) {
+ /* Header Packet */
+
+ /* First Sequence Number */
+ item_size = 2;
+ tvb_ensure_bytes_exist(tvb, tvb_offset, item_size);
+ proto_tree_add_item(calibration_item_subtree, hf_calibration_first_sequence_number, tvb, tvb_offset, item_size, ENC_BIG_ENDIAN);
+ tvb_offset += item_size;
+
+ /* Last Sequence Number */
+ item_size = 2;
+ tvb_ensure_bytes_exist(tvb, tvb_offset, item_size);
+ proto_tree_add_item(calibration_item_subtree, hf_calibration_last_sequence_number, tvb, tvb_offset, item_size, ENC_BIG_ENDIAN);
+ tvb_offset += item_size;
+
+ /* Name */
+ int name_length = tvb_reported_length_remaining(tvb, tvb_offset);
+ proto_item *name_item = proto_tree_add_item(calibration_item_subtree, hf_calibration_name, tvb, tvb_offset, name_length, ENC_UTF_8);
+
+ /* Name - Lines */
+ proto_tree *name_item_subtree = proto_item_add_subtree(name_item, ett_calibration_lines);
+ add_split_lines(pinfo, tvb, tvb_offset, name_item_subtree, hf_calibration_name_line);
+ } else {
+ /* Chunk Packet */
+
+ /* Chunk */
+ int chunk_length = tvb_reported_length_remaining(tvb, tvb_offset);
+ proto_item *chunk_item = proto_tree_add_item(calibration_item_subtree, hf_calibration_chunk, tvb, tvb_offset, chunk_length, ENC_UTF_8);
+
+ /* Chunk - Lines */
+ proto_tree *chunk_item_subtree = proto_item_add_subtree(chunk_item, ett_calibration_lines);
+ add_split_lines(pinfo, tvb, tvb_offset, chunk_item_subtree, hf_calibration_chunk_line);
+ }
+
+ return tvb_captured_length(tvb);
+}
+
+/*
+ * ########################################################################
+ * #
+ * # IDENT
+ * #
+ * ########################################################################
+ *
+ * Ident Packets
+ *
+ * Ident Packets are sent by IM1 and IM2R0 sensors.
+ *
+ * Ident Packet
+ * ============
+ * Content: string
+ */
+
+static int hf_ident_contents;
+static int hf_ident_contents_line;
+
+static hf_register_info protocol_registration_ident[] = {
+ {&hf_ident_contents, {"Contents", "locamation-im.ident.contents", FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL}},
+ {&hf_ident_contents_line, {"Contents Line", "locamation-im.ident.contents.line", FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL}}};
+
+static int h_protocol_ident = -1;
+
+static gint ett_protocol_ident;
+static gint ett_ident_lines;
+
+static int dissect_ident(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data _U_) {
+ col_set_str(pinfo->cinfo, COL_PROTOCOL, PROTOCOL_SHORTNAME_IDENT);
+ col_set_str(pinfo->cinfo, COL_INFO, PROTOCOL_NAME_IDENT);
+
+ proto_item *ident_item = proto_tree_add_item(tree, h_protocol_ident, tvb, 0, -1, ENC_NA);
+ proto_tree *ident_item_subtree = proto_item_add_subtree(ident_item, ett_protocol_ident);
+
+ /* Contents */
+ int contents_length = tvb_reported_length_remaining(tvb, 0);
+ proto_item *contents_item = proto_tree_add_item(ident_item_subtree, hf_ident_contents, tvb, 0, contents_length, ENC_UTF_8);
+
+ /* Contents - Lines */
+ proto_tree *contents_item_subtree = proto_item_add_subtree(contents_item, ett_ident_lines);
+ add_split_lines(pinfo, tvb, 0, contents_item_subtree, hf_ident_contents_line);
+
+ return tvb_captured_length(tvb);
+}
+
+/*
+ * ########################################################################
+ * #
+ * # SAMPLES - Common
+ * #
+ * ########################################################################
+ */
+
+static expert_field ei_samples_ranges_sample_1_invalid;
+static expert_field ei_samples_ranges_sample_2_invalid;
+static expert_field ei_samples_ranges_sample_3_invalid;
+static expert_field ei_samples_ranges_sample_4_invalid;
+static expert_field ei_samples_ranges_sample_5_invalid;
+static expert_field ei_samples_ranges_sample_6_invalid;
+static expert_field ei_samples_ranges_sample_7_invalid;
+static expert_field ei_samples_ranges_sample_8_invalid;
+
+static void check_ranges(tvbuff_t *tvb, packet_info *pinfo, gint tvb_offset, proto_item *item) {
+ guint16 ranges = tvb_get_guint16(tvb, tvb_offset, ENC_BIG_ENDIAN);
+
+ if ((ranges & MASK_RANGES_SAMPLE_8) == MASK_RANGES_SAMPLE_8) {
+ expert_add_info(pinfo, item, &ei_samples_ranges_sample_8_invalid);
+ }
+ if ((ranges & MASK_RANGES_SAMPLE_7) == MASK_RANGES_SAMPLE_7) {
+ expert_add_info(pinfo, item, &ei_samples_ranges_sample_7_invalid);
+ }
+ if ((ranges & MASK_RANGES_SAMPLE_6) == MASK_RANGES_SAMPLE_6) {
+ expert_add_info(pinfo, item, &ei_samples_ranges_sample_6_invalid);
+ }
+ if ((ranges & MASK_RANGES_SAMPLE_5) == MASK_RANGES_SAMPLE_5) {
+ expert_add_info(pinfo, item, &ei_samples_ranges_sample_5_invalid);
+ }
+ if ((ranges & MASK_RANGES_SAMPLE_4) == MASK_RANGES_SAMPLE_4) {
+ expert_add_info(pinfo, item, &ei_samples_ranges_sample_4_invalid);
+ }
+ if ((ranges & MASK_RANGES_SAMPLE_3) == MASK_RANGES_SAMPLE_3) {
+ expert_add_info(pinfo, item, &ei_samples_ranges_sample_3_invalid);
+ }
+ if ((ranges & MASK_RANGES_SAMPLE_2) == MASK_RANGES_SAMPLE_2) {
+ expert_add_info(pinfo, item, &ei_samples_ranges_sample_2_invalid);
+ }
+ if ((ranges & MASK_RANGES_SAMPLE_1) == MASK_RANGES_SAMPLE_1) {
+ expert_add_info(pinfo, item, &ei_samples_ranges_sample_1_invalid);
+ }
+}
+
+static gint ett_samples_sample_set_ranges;
+
+static int hf_samples_sample_set_ranges;
+
+static int hf_samples_sample_set_ranges_sample_1;
+static int hf_samples_sample_set_ranges_sample_2;
+static int hf_samples_sample_set_ranges_sample_3;
+static int hf_samples_sample_set_ranges_sample_4;
+static int hf_samples_sample_set_ranges_sample_5;
+static int hf_samples_sample_set_ranges_sample_6;
+static int hf_samples_sample_set_ranges_sample_7;
+static int hf_samples_sample_set_ranges_sample_8;
+
+static int *const rangesBits[] = {
+ &hf_samples_sample_set_ranges_sample_8,
+ &hf_samples_sample_set_ranges_sample_7,
+ &hf_samples_sample_set_ranges_sample_6,
+ &hf_samples_sample_set_ranges_sample_5,
+ &hf_samples_sample_set_ranges_sample_4,
+ &hf_samples_sample_set_ranges_sample_3,
+ &hf_samples_sample_set_ranges_sample_2,
+ &hf_samples_sample_set_ranges_sample_1,
+ NULL};
+
+static int hf_samples_sample_set_sample_1;
+static int hf_samples_sample_set_sample_2;
+static int hf_samples_sample_set_sample_3;
+static int hf_samples_sample_set_sample_4;
+static int hf_samples_sample_set_sample_5;
+static int hf_samples_sample_set_sample_6;
+static int hf_samples_sample_set_sample_7;
+static int hf_samples_sample_set_sample_8;
+
+static void add_sample_set(tvbuff_t *tvb, packet_info *pinfo, gint *tvb_offset, int hf, proto_tree *tree) {
+ gint item_size = SAMPLE_SET_SIZE;
+ tvb_ensure_bytes_exist(tvb, *tvb_offset, item_size);
+ proto_item *sample_set_item = proto_tree_add_item(tree, hf, tvb, *tvb_offset, item_size, ENC_BIG_ENDIAN);
+
+ proto_tree *sample_set_item_subtree = proto_item_add_subtree(sample_set_item, ett_samples_sample_set_ranges);
+
+ /* Ranges */
+ item_size = 2;
+ tvb_ensure_bytes_exist(tvb, *tvb_offset, item_size);
+ proto_item *ranges_item = proto_tree_add_bitmask(sample_set_item_subtree, tvb, *tvb_offset, hf_samples_sample_set_ranges, ett_samples_sample_set_ranges, rangesBits, ENC_BIG_ENDIAN);
+ check_ranges(tvb, pinfo, *tvb_offset, ranges_item);
+ *tvb_offset += item_size;
+
+ /* Samples */
+ int const hfs[] = {
+ hf_samples_sample_set_sample_1,
+ hf_samples_sample_set_sample_2,
+ hf_samples_sample_set_sample_3,
+ hf_samples_sample_set_sample_4,
+ hf_samples_sample_set_sample_5,
+ hf_samples_sample_set_sample_6,
+ hf_samples_sample_set_sample_7,
+ hf_samples_sample_set_sample_8};
+
+ item_size = 4;
+ for (guint index_sample = 0; index_sample < array_length(hfs); index_sample++) {
+ tvb_ensure_bytes_exist(tvb, *tvb_offset, item_size);
+ proto_tree_add_item(sample_set_item_subtree, hfs[index_sample], tvb, *tvb_offset, item_size, ENC_BIG_ENDIAN);
+ *tvb_offset += item_size;
+ }
+}
+
+static void add_sample_sets(tvbuff_t *tvb, packet_info *pinfo, gint *tvb_offset, int *hfs, guint hfs_size, proto_tree *tree) {
+ for (guint index_sample_set = 0; index_sample_set < hfs_size; index_sample_set++) {
+ add_sample_set(tvb, pinfo, tvb_offset, hfs[index_sample_set], tree);
+ }
+}
+
+static void add_rms_values(tvbuff_t *tvb, gint *tvb_offset, int *hfs, guint hfs_size, proto_tree *tree) {
+ gint item_size = 4;
+ for (guint index_rms_value = 0; index_rms_value < hfs_size; index_rms_value++) {
+ tvb_ensure_bytes_exist(tvb, *tvb_offset, item_size);
+ proto_tree_add_item(tree, hfs[index_rms_value], tvb, *tvb_offset, item_size, ENC_BIG_ENDIAN);
+ *tvb_offset += item_size;
+ }
+}
+
+static gint ett_samples_timestamps_sample;
+static gint ett_samples_timestamps_sample_reserved;
+static gint ett_samples_timestamps_sample_timestamp;
+
+static int hf_samples_timestamps_sample_sync_status;
+static int hf_samples_timestamps_sample_additional_status;
+static int hf_samples_timestamps_sample_additional_status_holdover_state;
+static int hf_samples_timestamps_sample_additional_status_master_clock_switch;
+static int hf_samples_timestamps_sample_timestamp;
+static int hf_samples_timestamps_sample_timestamp_seconds;
+static int hf_samples_timestamps_sample_timestamp_nanoseconds;
+
+static const value_string samples_timestamps_sample_sync_status[] = {
+ {0, "None"},
+ {1, "Local"},
+ {2, "Global"},
+ {0, NULL}};
+
+static int *const timestamp_additional_status_bits[] = {
+ &hf_samples_timestamps_sample_additional_status_holdover_state,
+ &hf_samples_timestamps_sample_additional_status_master_clock_switch,
+ NULL};
+
+static expert_field ei_samples_timestamp_sync_status_invalid;
+
+static void add_timestamp_sample(tvbuff_t *tvb, packet_info *pinfo, gint *tvb_offset_previous, gint *tvb_offset, int hf, proto_tree *tree) {
+ gint item_size = TIMESTAMP_SIZE;
+ tvb_ensure_bytes_exist(tvb, *tvb_offset, item_size);
+
+ /* Get the timestamp components */
+ guint8 sync_status = tvb_get_guint8(tvb, *tvb_offset);
+ guint32 seconds = tvb_get_guint32(tvb, *tvb_offset + 2, ENC_BIG_ENDIAN);
+ guint32 nanoseconds = tvb_get_guint32(tvb, *tvb_offset + 6, ENC_BIG_ENDIAN);
+
+ /* Convert the timestamp seconds to a split time type */
+ time_t sample_time = (time_t)seconds;
+ struct tm *sample_time_split = gmtime(&sample_time);
+
+ /* Construct the readable sync status */
+ const gchar *sync_status_buf = val_to_str(sync_status, samples_timestamps_sample_sync_status, "Unknown (%u)");
+
+ /* Construct the readable timestamp */
+ gchar timestamp_buf[ITEM_LABEL_LENGTH];
+ size_t timestamp_length = 0;
+ if (sample_time_split != NULL) {
+ timestamp_length += strftime(&timestamp_buf[timestamp_length], ITEM_LABEL_LENGTH - timestamp_length, "%Y-%m-%d %H:%M:%S.", sample_time_split);
+ } else {
+ timestamp_length += snprintf(&timestamp_buf[timestamp_length], ITEM_LABEL_LENGTH - timestamp_length, "\?\?\?\?-\?\?-\?\? \?\?:\?\?:\?\?.");
+ }
+ snprintf(&timestamp_buf[timestamp_length], ITEM_LABEL_LENGTH - timestamp_length, "%09u TAI", nanoseconds);
+
+ /* Construct the readable sample text */
+ char title_buf[ITEM_LABEL_LENGTH];
+ size_t title_length = 0;
+ title_length += snprintf(&title_buf[title_length], ITEM_LABEL_LENGTH - title_length, "%s (Sync: %s", timestamp_buf, sync_status_buf);
+ if (tvb_offset_previous != NULL) {
+ /* Get the previous timestamp components and calculate the time difference */
+ guint32 seconds_previous = tvb_get_guint32(tvb, *tvb_offset_previous + 2, ENC_BIG_ENDIAN);
+ guint32 nanoseconds_previous = tvb_get_guint32(tvb, *tvb_offset_previous + 6, ENC_BIG_ENDIAN);
+ guint64 time_previous = ((guint64)seconds_previous * 1000000000) + nanoseconds_previous;
+ guint64 time_now = ((guint64)seconds * 1000000000) + nanoseconds;
+ guint64 time_diff = 0;
+ gchar time_difference_sign[2] = {'\0', '\0'};
+ if (time_now > time_previous) {
+ time_diff = time_now - time_previous;
+ time_difference_sign[0] = '\0';
+ } else if (time_now < time_previous) {
+ time_diff = time_previous - time_now;
+ time_difference_sign[0] = '-';
+ }
+ double frequency = 0.0;
+ if (time_diff != 0) {
+ frequency = 1.0 / ((double)time_diff * 1.0E-09);
+ }
+ title_length += snprintf(&title_buf[title_length], ITEM_LABEL_LENGTH - title_length, ", Time Difference: %s%" G_GINT64_MODIFIER "u nsec", time_difference_sign, time_diff);
+ if (frequency != 0.0) {
+ title_length += snprintf(&title_buf[title_length], ITEM_LABEL_LENGTH - title_length, " = %f Hz", frequency);
+ }
+ }
+ snprintf(&title_buf[title_length], ITEM_LABEL_LENGTH - title_length, ")");
+
+ proto_item *sample_timestamp_item = proto_tree_add_string(tree, hf, tvb, *tvb_offset, item_size, title_buf);
+
+ proto_tree *sample_timestamp_item_subtree = proto_item_add_subtree(sample_timestamp_item, ett_samples_timestamps_sample);
+
+ /* Sync Status */
+ item_size = 1;
+ tvb_ensure_bytes_exist(tvb, *tvb_offset, item_size);
+ proto_item *sync_status_item = proto_tree_add_item(sample_timestamp_item_subtree, hf_samples_timestamps_sample_sync_status, tvb, *tvb_offset, item_size, ENC_BIG_ENDIAN);
+ *tvb_offset += item_size;
+
+ if (sync_status > 2) {
+ expert_add_info(pinfo, sync_status_item, &ei_samples_timestamp_sync_status_invalid);
+ }
+
+ /* Additional Status */
+ item_size = 1;
+ tvb_ensure_bytes_exist(tvb, *tvb_offset, item_size);
+ proto_tree_add_bitmask(sample_timestamp_item_subtree, tvb, *tvb_offset, hf_samples_timestamps_sample_additional_status, ett_samples_timestamps_sample_reserved, timestamp_additional_status_bits, ENC_BIG_ENDIAN);
+ *tvb_offset += item_size;
+
+ /* Timestamp */
+ item_size = 8;
+ tvb_ensure_bytes_exist(tvb, *tvb_offset, item_size);
+ proto_item *sample_timestamp_timestamp_item = proto_tree_add_string(sample_timestamp_item_subtree, hf_samples_timestamps_sample_timestamp, tvb, *tvb_offset, item_size, timestamp_buf);
+
+ proto_tree *sample_timestamp_timestamp_item_subtree = proto_item_add_subtree(sample_timestamp_timestamp_item, ett_samples_timestamps_sample_timestamp);
+
+ /* Seconds */
+ item_size = 4;
+ tvb_ensure_bytes_exist(tvb, *tvb_offset, item_size);
+ proto_tree_add_item(sample_timestamp_timestamp_item_subtree, hf_samples_timestamps_sample_timestamp_seconds, tvb, *tvb_offset, item_size, ENC_BIG_ENDIAN);
+ *tvb_offset += item_size;
+
+ /* Nanoseconds */
+ item_size = 4;
+ tvb_ensure_bytes_exist(tvb, *tvb_offset, item_size);
+ proto_tree_add_item(sample_timestamp_timestamp_item_subtree, hf_samples_timestamps_sample_timestamp_nanoseconds, tvb, *tvb_offset, item_size, ENC_BIG_ENDIAN);
+ *tvb_offset += item_size;
+}
+
+static void add_timestamps_set(tvbuff_t *tvb, packet_info *pinfo, gint *tvb_offset, int *hfs, guint hfs_size, proto_tree *tree) {
+ gint tvb_offset_previous = 0;
+ for (guint index_timestamp = 0; index_timestamp < hfs_size; index_timestamp++) {
+ gint tvb_offset_saved = *tvb_offset;
+ add_timestamp_sample(tvb, pinfo, (index_timestamp == 0) ? NULL : &tvb_offset_previous, tvb_offset, hfs[index_timestamp], tree);
+ tvb_offset_previous = tvb_offset_saved;
+ }
+}
+
+/*
+ * Samples Packets
+ *
+ * Samples Packets are sent by IM1 and IM2R0 sensors.
+ * However, details of the packets differ between the sensors.
+ *
+ * Samples Packet
+ * ==============
+ * Transport Delay: 2 bytes, unsigned (resolution = 10ns)
+ * Hop Count: 1 byte, unsigned
+ * Control data: 1 byte, bitmap
+ * bit [7] : type : 0 = CIM, 1 = VIM
+ * bit [6] : simulated: 0 = Real Samples, 1 = Simulated Samples
+ * bits [5..4]: version : 00 = IM1, 11 = IM2R0
+ * bits [3..0]: seqnr : Sequence Number, in the range [0,15], monotonically
+ * increasing and wrapping
+ * Temperature: 2 bytes, signed (resolution = 0.25C)
+ * Padding: 1 byte
+ * ADC Status: 1 byte, unsigned
+ * Sample Data
+ * * Sample data is stored in sample data sets.
+ * Each sample data set contains ranges and the data of 8 samples, and
+ * samples are equi-distant in time.
+ *
+ * Sample Data Set
+ * ===============
+ * Range: 2 bytes, bitmap
+ * - bits [15,14]: Range of sample 8 (newest sample)
+ * - bits [13,12]: Range of sample 7
+ * - bits [11,10]: Range of sample 6
+ * - bits [ 9, 8]: Range of sample 5
+ * - bits [ 7, 6]: Range of sample 4
+ * - bits [ 5, 4]: Range of sample 3
+ * - bits [ 3, 2]: Range of sample 2
+ * - bits [ 1, 0]: Range of sample 1 (oldest sample)
+ * Range values:
+ * 00 = measurement ADC channel
+ * 01 = protection ADC channel, range low
+ * 10 = protection ADC channel, range high
+ * 11 = unused
+ * Sample 1: 4 bytes, signed (oldest sample)
+ * Sample 2: 4 bytes, signed
+ * Sample 3: 4 bytes, signed
+ * Sample 4: 4 bytes, signed
+ * Sample 5: 4 bytes, signed
+ * Sample 6: 4 bytes, signed
+ * Sample 7: 4 bytes, signed
+ * Sample 8: 4 bytes, signed (newest sample)
+ *
+ * * IM1
+ * 6 sample data sets, one set per ADC channel:
+ *
+ * Sample Data
+ * ===========
+ * CIM VIM
+ * set 1 channel 1, measurement channel 1
+ * set 2 channel 2, measurement channel 2
+ * set 3 channel 3, measurement channel 3
+ * set 4 channel 1, protection 0
+ * set 5 channel 2, protection 0
+ * set 6 channel 3, protection 0
+ *
+ * * IM2R0
+ * 8 sample data sets, one set per ADC channel:
+ *
+ * Sample Data
+ * ===========
+ * CIM VIM
+ * set 1 channel 1, measurement channel 1
+ * set 2 channel 2, measurement channel 2
+ * set 3 channel 3, measurement channel 3
+ * set 4 channel 1, protection neutral channel
+ * set 5 channel 2, protection 0
+ * set 6 channel 3, protection 0
+ * set 7 neutral channel, measurement 0
+ * set 8 neutral channel, protection 0
+ * RMS values
+ * * RMS values are stored as 4 byte signed values.
+ *
+ * * IM1
+ * 6 values, one per ADC-channel:
+ *
+ * RMS values
+ * ==========
+ * CIM VIM
+ * value 1 channel 1, measurement channel 1
+ * value 2 channel 2, measurement channel 2
+ * value 3 channel 3, measurement channel 3
+ * value 4 channel 1, protection 0
+ * value 5 channel 2, protection 0
+ * value 6 channel 3, protection 0
+ *
+ * * IM2R0
+ * 8 values, one per ADC-channel:
+ *
+ * RMS values
+ * ==========
+ * CIM VIM
+ * value 1 0 0
+ * value 2 0 0
+ * value 3 0 0
+ * value 4 0 0
+ * value 5 0 0
+ * value 6 0 0
+ * value 7 0 0
+ * value 8 0 0
+ * Timestamps
+ * * Timestamps are PTP driven and are stored in a versioned block.
+ * Each timestamp also has status information.
+ *
+ * * IM1
+ * Timestamps are not applicable for IM1.
+ *
+ * * IM2R0
+ * Timestamps are optional.
+ *
+ * Timestamps Block
+ * ================
+ * Version 1 byte, unsigned
+ * Reserved 3 bytes, unsigned
+ * Sample 1 Timestamp (oldest sample)
+ * Sample 2 Timestamp
+ * Sample 3 Timestamp
+ * Sample 4 Timestamp
+ * Sample 5 Timestamp
+ * Sample 6 Timestamp
+ * Sample 7 Timestamp
+ * Sample 8 Timestamp (newest sample)
+ *
+ * Timestamp
+ * =========
+ * Sync Status 1 byte, unsigned
+ * 0 = Not synchronized (during start-up or synchronization lost)
+ * 1 = Synchronized but not to a Grand Master Clock
+ * 2 = Synchronized to a Grand Master Clock
+ * 3-255 = Invalid
+ * Additional Status 1 byte, bitmap
+ * bits [7, 2]: Reserved
+ * bits [1] : Master clock switch
+ * 1 = The device switched to a different master clock or
+ * became synchronized to a master clock for the first time.
+ * 0 = The device did not switch to a different master clock nor
+ * became synchronized to a master clock for the first time.
+ * bits [0] : Holdover state
+ * 1 = The device is in its holdover state.
+ * 0 = The device is not in its holdover state.
+ * Seconds 4 bytes, unsigned
+ * Nanoseconds 4 bytes, unsigned
+ */
+
+static gint ett_protocol_samples;
+static gint ett_samples_control;
+static gint ett_samples_sets;
+static gint ett_samples_sets_set;
+static gint ett_samples_rms;
+static gint ett_samples_rms_values;
+static gint ett_samples_timestamps;
+static gint ett_samples_timestamps_set;
+
+static expert_field ei_samples_im_version_invalid;
+
+static int hf_samples_transport_delay;
+static int hf_samples_hop_count;
+static int hf_samples_control;
+static int hf_samples_control_type;
+static int hf_samples_control_simulated;
+static int hf_samples_control_version;
+static int hf_samples_control_sequence_number;
+static int hf_samples_temperature;
+static int hf_samples_padding;
+static int hf_samples_adc_status;
+static int hf_samples_sample_set;
+static int hf_samples_rms_values;
+static int hf_samples_timestamps;
+
+static int *const controlBits[] = {
+ &hf_samples_control_type,
+ &hf_samples_control_simulated,
+ &hf_samples_control_version,
+ &hf_samples_control_sequence_number,
+ NULL};
+
+static int hf_samples_sample_set_measurement_channel_1;
+static int hf_samples_sample_set_measurement_channel_2;
+static int hf_samples_sample_set_measurement_channel_3;
+static int hf_samples_sample_set_measurement_channel_n;
+static int hf_samples_sample_set_protection_channel_1;
+static int hf_samples_sample_set_protection_channel_2;
+static int hf_samples_sample_set_protection_channel_3;
+static int hf_samples_sample_set_protection_channel_n;
+static int hf_samples_sample_set_channel_unused;
+
+static int hf_samples_rms_values_measurement_channel_1;
+static int hf_samples_rms_values_measurement_channel_2;
+static int hf_samples_rms_values_measurement_channel_3;
+static int hf_samples_rms_values_protection_channel_1;
+static int hf_samples_rms_values_protection_channel_2;
+static int hf_samples_rms_values_protection_channel_3;
+static int hf_samples_rms_values_channel_unused;
+
+static int hf_samples_timestamps_version;
+static int hf_samples_timestamps_reserved;
+static int hf_samples_timestamps_sample_1;
+static int hf_samples_timestamps_sample_2;
+static int hf_samples_timestamps_sample_3;
+static int hf_samples_timestamps_sample_4;
+static int hf_samples_timestamps_sample_5;
+static int hf_samples_timestamps_sample_6;
+static int hf_samples_timestamps_sample_7;
+static int hf_samples_timestamps_sample_8;
+
+static int dissect_samples_im(gboolean im1, tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data _U_, int h_protocol_samples) {
+ col_set_str(pinfo->cinfo, COL_PROTOCOL, im1 ? PROTOCOL_SHORTNAME_SAMPLES_IM1 : PROTOCOL_SHORTNAME_SAMPLES_IM2R0);
+ col_set_str(pinfo->cinfo, COL_INFO, im1 ? PROTOCOL_NAME_SAMPLES_IM1 : PROTOCOL_NAME_SAMPLES_IM2R0);
+
+ proto_item *samples_item = proto_tree_add_item(tree, h_protocol_samples, tvb, 0, -1, ENC_NA);
+ proto_tree *samples_item_subtree = proto_item_add_subtree(samples_item, ett_protocol_samples);
+
+ gint tvb_offset = 0;
+
+ /* Transport Delay */
+ gint item_size = 2;
+ tvb_ensure_bytes_exist(tvb, tvb_offset, item_size);
+ proto_tree_add_item(samples_item_subtree, hf_samples_transport_delay, tvb, tvb_offset, item_size, ENC_BIG_ENDIAN);
+ tvb_offset += item_size;
+
+ /* Hop Count */
+ item_size = 1;
+ tvb_ensure_bytes_exist(tvb, tvb_offset, item_size);
+ proto_tree_add_item(samples_item_subtree, hf_samples_hop_count, tvb, tvb_offset, item_size, ENC_BIG_ENDIAN);
+ tvb_offset += item_size;
+
+ /* Get Control */
+ guint8 control = tvb_get_guint8(tvb, tvb_offset);
+ gboolean isIM1 = ((control & MASK_SAMPLES_CONTROL_VERSION) == 0);
+ gboolean isIM2R0 = ((control & MASK_SAMPLES_CONTROL_VERSION) == MASK_SAMPLES_CONTROL_VERSION);
+ gboolean isCIM = ((control & MASK_SAMPLES_CONTROL_TYPE) == 0);
+
+ /* Control */
+ item_size = 1;
+ tvb_ensure_bytes_exist(tvb, tvb_offset, item_size);
+ proto_item *control_item = proto_tree_add_bitmask(samples_item_subtree, tvb, tvb_offset, hf_samples_control, ett_samples_control, controlBits, ENC_BIG_ENDIAN);
+ tvb_offset += item_size;
+ if (!isIM1 && !isIM2R0) {
+ expert_add_info(pinfo, control_item, &ei_samples_im_version_invalid);
+ }
+
+ /* Temperature */
+ item_size = 2;
+ tvb_ensure_bytes_exist(tvb, tvb_offset, item_size);
+ proto_tree_add_item(samples_item_subtree, hf_samples_temperature, tvb, tvb_offset, item_size, ENC_BIG_ENDIAN);
+ tvb_offset += item_size;
+
+ /* Padding */
+ item_size = 1;
+ tvb_ensure_bytes_exist(tvb, tvb_offset, item_size);
+ proto_tree_add_item(samples_item_subtree, hf_samples_padding, tvb, tvb_offset, item_size, ENC_BIG_ENDIAN);
+ tvb_offset += item_size;
+
+ /* ADC status */
+ item_size = 1;
+ tvb_ensure_bytes_exist(tvb, tvb_offset, item_size);
+ proto_tree_add_item(samples_item_subtree, hf_samples_adc_status, tvb, tvb_offset, item_size, ENC_BIG_ENDIAN);
+ tvb_offset += item_size;
+
+ /* Sample Sets */
+ {
+ proto_tree *sample_sets_subtree = proto_item_add_subtree(samples_item, ett_samples_sets);
+
+ if (im1) {
+ item_size = SAMPLE_SET_SIZE * 6;
+ } else {
+ item_size = SAMPLE_SET_SIZE * 8;
+ }
+ tvb_ensure_bytes_exist(tvb, tvb_offset, item_size);
+ proto_item *sample_sets_subtree_item = proto_tree_add_item(sample_sets_subtree, hf_samples_sample_set, tvb, tvb_offset, item_size, ENC_NA);
+
+ proto_tree *sample_sets_subtree_item_subtree = proto_item_add_subtree(sample_sets_subtree_item, ett_samples_sets_set);
+
+ if (isIM1) {
+ if (isCIM) {
+ /* IM1 CIM */
+
+ int hfs[] = {
+ hf_samples_sample_set_measurement_channel_1,
+ hf_samples_sample_set_measurement_channel_2,
+ hf_samples_sample_set_measurement_channel_3,
+ hf_samples_sample_set_protection_channel_1,
+ hf_samples_sample_set_protection_channel_2,
+ hf_samples_sample_set_protection_channel_3};
+
+ add_sample_sets(tvb, pinfo, &tvb_offset, hfs, array_length(hfs), sample_sets_subtree_item_subtree);
+ } else {
+ /* IM1 VIM */
+
+ int hfs[] = {
+ hf_samples_sample_set_measurement_channel_1,
+ hf_samples_sample_set_measurement_channel_2,
+ hf_samples_sample_set_measurement_channel_3,
+ hf_samples_sample_set_channel_unused,
+ hf_samples_sample_set_channel_unused,
+ hf_samples_sample_set_channel_unused};
+
+ add_sample_sets(tvb, pinfo, &tvb_offset, hfs, array_length(hfs), sample_sets_subtree_item_subtree);
+ }
+ } else if (isIM2R0) {
+ if (isCIM) {
+ /* IM2R0 CIM */
+
+ int hfs[] = {
+ hf_samples_sample_set_measurement_channel_1,
+ hf_samples_sample_set_measurement_channel_2,
+ hf_samples_sample_set_measurement_channel_3,
+ hf_samples_sample_set_protection_channel_1,
+ hf_samples_sample_set_protection_channel_2,
+ hf_samples_sample_set_protection_channel_3,
+ hf_samples_sample_set_measurement_channel_n,
+ hf_samples_sample_set_protection_channel_n};
+
+ add_sample_sets(tvb, pinfo, &tvb_offset, hfs, array_length(hfs), sample_sets_subtree_item_subtree);
+ } else {
+ /* IM2R0 VIM */
+
+ int hfs[] = {
+ hf_samples_sample_set_measurement_channel_1,
+ hf_samples_sample_set_measurement_channel_2,
+ hf_samples_sample_set_measurement_channel_3,
+ hf_samples_sample_set_measurement_channel_n,
+ hf_samples_sample_set_channel_unused,
+ hf_samples_sample_set_channel_unused,
+ hf_samples_sample_set_channel_unused,
+ hf_samples_sample_set_channel_unused};
+
+ add_sample_sets(tvb, pinfo, &tvb_offset, hfs, array_length(hfs), sample_sets_subtree_item_subtree);
+ }
+ }
+ }
+
+ /* RMS Values */
+ {
+ proto_tree *rms_values_subtree = proto_item_add_subtree(samples_item, ett_samples_rms);
+
+ if (im1) {
+ item_size = 4 * 6;
+ } else {
+ item_size = 4 * 8;
+ }
+ tvb_ensure_bytes_exist(tvb, tvb_offset, item_size);
+ proto_item *rms_values_item = proto_tree_add_item(rms_values_subtree, hf_samples_rms_values, tvb, tvb_offset, item_size, ENC_NA);
+
+ proto_tree *rms_values_item_subtree = proto_item_add_subtree(rms_values_item, ett_samples_rms_values);
+
+ if (isIM1) {
+ if (isCIM) {
+ /* IM1 CIM */
+
+ int hfs[] = {
+ hf_samples_rms_values_measurement_channel_1,
+ hf_samples_rms_values_measurement_channel_2,
+ hf_samples_rms_values_measurement_channel_3,
+ hf_samples_rms_values_protection_channel_1,
+ hf_samples_rms_values_protection_channel_2,
+ hf_samples_rms_values_protection_channel_3};
+
+ add_rms_values(tvb, &tvb_offset, hfs, array_length(hfs), rms_values_item_subtree);
+ } else {
+ /* IM1 VIM */
+
+ int hfs[] = {
+ hf_samples_rms_values_measurement_channel_1,
+ hf_samples_rms_values_measurement_channel_2,
+ hf_samples_rms_values_measurement_channel_3,
+ hf_samples_rms_values_channel_unused,
+ hf_samples_rms_values_channel_unused,
+ hf_samples_rms_values_channel_unused};
+
+ add_rms_values(tvb, &tvb_offset, hfs, array_length(hfs), rms_values_item_subtree);
+ }
+ } else if (isIM2R0) {
+ int hfs[] = {
+ hf_samples_rms_values_channel_unused,
+ hf_samples_rms_values_channel_unused,
+ hf_samples_rms_values_channel_unused,
+ hf_samples_rms_values_channel_unused,
+ hf_samples_rms_values_channel_unused,
+ hf_samples_rms_values_channel_unused,
+ hf_samples_rms_values_channel_unused,
+ hf_samples_rms_values_channel_unused};
+
+ add_rms_values(tvb, &tvb_offset, hfs, array_length(hfs), rms_values_item_subtree);
+ }
+ }
+
+ /* Timestamps */
+ if (isIM2R0 && tvb_bytes_exist(tvb, tvb_offset, TIMESTAMPS_SIZE)) {
+ proto_tree *samples_timestamps_subtree = proto_item_add_subtree(samples_item, ett_samples_timestamps);
+
+ item_size = TIMESTAMPS_SIZE;
+ tvb_ensure_bytes_exist(tvb, tvb_offset, item_size);
+ proto_item *samples_timestamps_subtree_item = proto_tree_add_item(samples_timestamps_subtree, hf_samples_timestamps, tvb, tvb_offset, item_size, ENC_NA);
+
+ proto_tree *samples_timestamps_subtree_item_subtree = proto_item_add_subtree(samples_timestamps_subtree_item, ett_samples_timestamps_set);
+
+ /* Version */
+ item_size = 1;
+ tvb_ensure_bytes_exist(tvb, tvb_offset, item_size);
+ proto_tree_add_item(samples_timestamps_subtree_item_subtree, hf_samples_timestamps_version, tvb, tvb_offset, item_size, ENC_BIG_ENDIAN);
+ tvb_offset += item_size;
+
+ /* Reserved */
+ item_size = 3;
+ tvb_ensure_bytes_exist(tvb, tvb_offset, item_size);
+ proto_tree_add_item(samples_timestamps_subtree_item_subtree, hf_samples_timestamps_reserved, tvb, tvb_offset, item_size, ENC_BIG_ENDIAN);
+ tvb_offset += item_size;
+
+ /* Sample Timestamps */
+
+ int hfs[] = {
+ hf_samples_timestamps_sample_1,
+ hf_samples_timestamps_sample_2,
+ hf_samples_timestamps_sample_3,
+ hf_samples_timestamps_sample_4,
+ hf_samples_timestamps_sample_5,
+ hf_samples_timestamps_sample_6,
+ hf_samples_timestamps_sample_7,
+ hf_samples_timestamps_sample_8};
+
+ add_timestamps_set(tvb, pinfo, &tvb_offset, hfs, array_length(hfs), samples_timestamps_subtree_item_subtree);
+ }
+
+ return tvb_captured_length(tvb);
+}
+
+/*
+ * ########################################################################
+ * #
+ * # Samples - IM1
+ * #
+ * ########################################################################
+ */
+
+static void samples_transport_delay(gchar *result, guint16 transport_delay) {
+ snprintf(result, ITEM_LABEL_LENGTH, "%u ns", transport_delay * 10);
+}
+
+static const value_string samples_control_type_vals[] = {
+ {0, "Current Interface Module"},
+ {1, "Voltage Interface Module"},
+ {0, NULL}};
+
+static const value_string samples_control_simulated_vals[] = {
+ {0, "Sampled"},
+ {1, "Simulated"},
+ {0, NULL}};
+
+static const value_string samples_control_version_vals[] = {
+ {0, "IM1"},
+ {1, "Unused"},
+ {2, "Unused"},
+ {3, "IM2R0"},
+ {0, NULL}};
+
+static void samples_sequence_number(gchar *result, guint8 sequence_number) {
+ snprintf(result, ITEM_LABEL_LENGTH, "%u", sequence_number);
+}
+
+static void samples_temperature(gchar *result, gint16 temperature) {
+ snprintf(result, ITEM_LABEL_LENGTH, "%.2f C", (0.25f * temperature));
+}
+
+static const value_string ranges_vals[] = {
+ {0, "Measurement ADC Channel"},
+ {1, "Protection ADC Channel, Range Low"},
+ {2, "Protection ADC Channel, Range High"},
+ {3, "Unused"},
+ {0, NULL}};
+
+static hf_register_info protocol_registration_samples[] = {
+ {&hf_samples_transport_delay, {"Transport Delay", "locamation-im.samples.transport_delay", FT_UINT16, BASE_CUSTOM, CF_FUNC(samples_transport_delay), 0x0, NULL, HFILL}},
+ {&hf_samples_hop_count, {"Hop Count", "locamation-im.samples.hop_count", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL}},
+ {&hf_samples_control, {"Control", "locamation-im.samples.control", FT_UINT8, BASE_HEX, NULL, 0x0, NULL, HFILL}},
+ {&hf_samples_control_type, {"Type", "locamation-im.samples.control.type", FT_UINT8, BASE_DEC, VALS(samples_control_type_vals), MASK_SAMPLES_CONTROL_TYPE, NULL, HFILL}},
+ {&hf_samples_control_simulated, {"Simulated", "locamation-im.samples.control.simulated", FT_UINT8, BASE_DEC, VALS(samples_control_simulated_vals), MASK_SAMPLES_CONTROL_SIMULATED, NULL, HFILL}},
+ {&hf_samples_control_version, {"Version", "locamation-im.samples.control.version", FT_UINT8, BASE_DEC, VALS(samples_control_version_vals), MASK_SAMPLES_CONTROL_VERSION, NULL, HFILL}},
+ {&hf_samples_control_sequence_number, {"Sequence Number", "locamation-im.samples.control.sequence_number", FT_UINT8, BASE_CUSTOM, CF_FUNC(samples_sequence_number), MASK_SAMPLES_CONTROL_SEQUENCE_NUMBER, NULL, HFILL}},
+ {&hf_samples_temperature, {"Temperature", "locamation-im.samples.temperature", FT_INT16, BASE_CUSTOM, CF_FUNC(samples_temperature), 0x0, NULL, HFILL}},
+ {&hf_samples_padding, {"Padding", "locamation-im.samples.padding", FT_UINT8, BASE_HEX, NULL, 0x0, NULL, HFILL}},
+ {&hf_samples_adc_status, {"ADC Status", "locamation-im.samples.adc_status", FT_UINT8, BASE_HEX, NULL, 0x0, NULL, HFILL}},
+ {&hf_samples_sample_set, {"Sample Sets", "locamation-im.samples.sets", FT_NONE, BASE_NONE, NULL, 0x0, NULL, HFILL}},
+ {&hf_samples_rms_values, {"RMS Values", "locamation-im.samples.rms_values", FT_NONE, BASE_NONE, NULL, 0x0, NULL, HFILL}},
+ {&hf_samples_sample_set_measurement_channel_1, {"Measurement Channel 1", "locamation-im.samples.sets.measurement.channel.1", FT_NONE, BASE_NONE, NULL, 0x0, NULL, HFILL}},
+ {&hf_samples_sample_set_measurement_channel_2, {"Measurement Channel 2", "locamation-im.samples.sets.measurement.channel.2", FT_NONE, BASE_NONE, NULL, 0x0, NULL, HFILL}},
+ {&hf_samples_sample_set_measurement_channel_3, {"Measurement Channel 3", "locamation-im.samples.sets.measurement.channel.3", FT_NONE, BASE_NONE, NULL, 0x0, NULL, HFILL}},
+ {&hf_samples_sample_set_measurement_channel_n, {"Measurement Channel N", "locamation-im.samples.sets.measurement.channel.n", FT_NONE, BASE_NONE, NULL, 0x0, NULL, HFILL}},
+ {&hf_samples_sample_set_protection_channel_1, {"Protection Channel 1", "locamation-im.samples.sets.protection.channel.1", FT_NONE, BASE_NONE, NULL, 0x0, NULL, HFILL}},
+ {&hf_samples_sample_set_protection_channel_2, {"Protection Channel 2", "locamation-im.samples.sets.protection.channel.2", FT_NONE, BASE_NONE, NULL, 0x0, NULL, HFILL}},
+ {&hf_samples_sample_set_protection_channel_3, {"Protection Channel 3", "locamation-im.samples.sets.protection.channel.3", FT_NONE, BASE_NONE, NULL, 0x0, NULL, HFILL}},
+ {&hf_samples_sample_set_protection_channel_n, {"Protection Channel N", "locamation-im.samples.sets.protection.channel.n", FT_NONE, BASE_NONE, NULL, 0x0, NULL, HFILL}},
+ {&hf_samples_sample_set_channel_unused, {"Unused Channel", "locamation-im.samples.sets.channel.unused", FT_NONE, BASE_NONE, NULL, 0x0, NULL, HFILL}},
+ {&hf_samples_sample_set_ranges, {"Ranges", "locamation-im.samples.sets.measurement.ranges", FT_UINT16, BASE_HEX, NULL, 0x0, NULL, HFILL}},
+ {&hf_samples_sample_set_ranges_sample_1, {"Sample 1", "locamation-im.samples.sets.measurement.ranges.sample.1", FT_UINT16, BASE_DEC, VALS(ranges_vals), MASK_RANGES_SAMPLE_1, NULL, HFILL}},
+ {&hf_samples_sample_set_ranges_sample_2, {"Sample 2", "locamation-im.samples.sets.measurement.ranges.sample.2", FT_UINT16, BASE_DEC, VALS(ranges_vals), MASK_RANGES_SAMPLE_2, NULL, HFILL}},
+ {&hf_samples_sample_set_ranges_sample_3, {"Sample 3", "locamation-im.samples.sets.measurement.ranges.sample.3", FT_UINT16, BASE_DEC, VALS(ranges_vals), MASK_RANGES_SAMPLE_3, NULL, HFILL}},
+ {&hf_samples_sample_set_ranges_sample_4, {"Sample 4", "locamation-im.samples.sets.measurement.ranges.sample.4", FT_UINT16, BASE_DEC, VALS(ranges_vals), MASK_RANGES_SAMPLE_4, NULL, HFILL}},
+ {&hf_samples_sample_set_ranges_sample_5, {"Sample 5", "locamation-im.samples.sets.measurement.ranges.sample.5", FT_UINT16, BASE_DEC, VALS(ranges_vals), MASK_RANGES_SAMPLE_5, NULL, HFILL}},
+ {&hf_samples_sample_set_ranges_sample_6, {"Sample 6", "locamation-im.samples.sets.measurement.ranges.sample.6", FT_UINT16, BASE_DEC, VALS(ranges_vals), MASK_RANGES_SAMPLE_6, NULL, HFILL}},
+ {&hf_samples_sample_set_ranges_sample_7, {"Sample 7", "locamation-im.samples.sets.measurement.ranges.sample.7", FT_UINT16, BASE_DEC, VALS(ranges_vals), MASK_RANGES_SAMPLE_7, NULL, HFILL}},
+ {&hf_samples_sample_set_ranges_sample_8, {"Sample 8", "locamation-im.samples.sets.measurement.ranges.sample.8", FT_UINT16, BASE_DEC, VALS(ranges_vals), MASK_RANGES_SAMPLE_8, NULL, HFILL}},
+ {&hf_samples_sample_set_sample_1, {"Sample 1", "locamation-im.samples.sets.sample.1", FT_INT32, BASE_DEC, NULL, 0x0, NULL, HFILL}},
+ {&hf_samples_sample_set_sample_2, {"Sample 2", "locamation-im.samples.sets.sample.2", FT_INT32, BASE_DEC, NULL, 0x0, NULL, HFILL}},
+ {&hf_samples_sample_set_sample_3, {"Sample 3", "locamation-im.samples.sets.sample.3", FT_INT32, BASE_DEC, NULL, 0x0, NULL, HFILL}},
+ {&hf_samples_sample_set_sample_4, {"Sample 4", "locamation-im.samples.sets.sample.4", FT_INT32, BASE_DEC, NULL, 0x0, NULL, HFILL}},
+ {&hf_samples_sample_set_sample_5, {"Sample 5", "locamation-im.samples.sets.sample.5", FT_INT32, BASE_DEC, NULL, 0x0, NULL, HFILL}},
+ {&hf_samples_sample_set_sample_6, {"Sample 6", "locamation-im.samples.sets.sample.6", FT_INT32, BASE_DEC, NULL, 0x0, NULL, HFILL}},
+ {&hf_samples_sample_set_sample_7, {"Sample 7", "locamation-im.samples.sets.sample.7", FT_INT32, BASE_DEC, NULL, 0x0, NULL, HFILL}},
+ {&hf_samples_sample_set_sample_8, {"Sample 8", "locamation-im.samples.sets.sample.8", FT_INT32, BASE_DEC, NULL, 0x0, NULL, HFILL}},
+ {&hf_samples_rms_values_measurement_channel_1, {"Measurement Channel 1", "locamation-im.samples.rms.measurement.channel.1", FT_INT32, BASE_DEC, NULL, 0x0, NULL, HFILL}},
+ {&hf_samples_rms_values_measurement_channel_2, {"Measurement Channel 2", "locamation-im.samples.rms.measurement.channel.2", FT_INT32, BASE_DEC, NULL, 0x0, NULL, HFILL}},
+ {&hf_samples_rms_values_measurement_channel_3, {"Measurement Channel 3", "locamation-im.samples.rms.measurement.channel.3", FT_INT32, BASE_DEC, NULL, 0x0, NULL, HFILL}},
+ {&hf_samples_rms_values_protection_channel_1, {"Protection Channel 1", "locamation-im.samples.rms.protection.channel.1", FT_INT32, BASE_DEC, NULL, 0x0, NULL, HFILL}},
+ {&hf_samples_rms_values_protection_channel_2, {"Protection Channel 2", "locamation-im.samples.rms.protection.channel.2", FT_INT32, BASE_DEC, NULL, 0x0, NULL, HFILL}},
+ {&hf_samples_rms_values_protection_channel_3, {"Protection Channel 3", "locamation-im.samples.rms.protection.channel.3", FT_INT32, BASE_DEC, NULL, 0x0, NULL, HFILL}},
+ {&hf_samples_rms_values_channel_unused, {"Unused Channel", "locamation-im.samples.rms.channel.unused", FT_INT32, BASE_DEC, NULL, 0x0, NULL, HFILL}}};
+
+static ei_register_info ei_samples_im1[] = {
+ {&ei_samples_ranges_sample_1_invalid, {"locamation-im.samples.sets.measurement.ranges.sample.1.invalid", PI_MALFORMED, PI_ERROR, "Invalid Range for sample 1", EXPFILL}},
+ {&ei_samples_ranges_sample_2_invalid, {"locamation-im.samples.sets.measurement.ranges.sample.2.invalid", PI_MALFORMED, PI_ERROR, "Invalid Range for sample 2", EXPFILL}},
+ {&ei_samples_ranges_sample_3_invalid, {"locamation-im.samples.sets.measurement.ranges.sample.3.invalid", PI_MALFORMED, PI_ERROR, "Invalid Range for sample 3", EXPFILL}},
+ {&ei_samples_ranges_sample_4_invalid, {"locamation-im.samples.sets.measurement.ranges.sample.4.invalid", PI_MALFORMED, PI_ERROR, "Invalid Range for sample 4", EXPFILL}},
+ {&ei_samples_ranges_sample_5_invalid, {"locamation-im.samples.sets.measurement.ranges.sample.5.invalid", PI_MALFORMED, PI_ERROR, "Invalid Range for sample 5", EXPFILL}},
+ {&ei_samples_ranges_sample_6_invalid, {"locamation-im.samples.sets.measurement.ranges.sample.6.invalid", PI_MALFORMED, PI_ERROR, "Invalid Range for sample 6", EXPFILL}},
+ {&ei_samples_ranges_sample_7_invalid, {"locamation-im.samples.sets.measurement.ranges.sample.7.invalid", PI_MALFORMED, PI_ERROR, "Invalid Range for sample 7", EXPFILL}},
+ {&ei_samples_ranges_sample_8_invalid, {"locamation-im.samples.sets.measurement.ranges.sample.8.invalid", PI_MALFORMED, PI_ERROR, "Invalid Range for sample 8", EXPFILL}}};
+
+static int h_protocol_samples_im1 = -1;
+
+static int dissect_samples_im1(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data) {
+ return dissect_samples_im(TRUE, tvb, pinfo, tree, data, h_protocol_samples_im1);
+}
+
+/*
+ * ########################################################################
+ * #
+ * # Samples - IM2R0
+ * #
+ * ########################################################################
+ */
+
+static hf_register_info protocol_registration_samples_im2[] = {
+ {&hf_samples_timestamps, {"Timestamps", "locamation-im.samples.timestamps", FT_NONE, BASE_NONE, NULL, 0x0, NULL, HFILL}},
+ {&hf_samples_timestamps_version, {"Version", "locamation-im.samples.timestamps.version", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL}},
+ {&hf_samples_timestamps_reserved, {"Reserved", "locamation-im.samples.timestamps.reserved", FT_UINT24, BASE_DEC, NULL, 0x0, NULL, HFILL}},
+ {&hf_samples_timestamps_sample_1, {"Sample 1", "locamation-im.samples.timestamps.sample.1", FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL}},
+ {&hf_samples_timestamps_sample_2, {"Sample 2", "locamation-im.samples.timestamps.sample.2", FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL}},
+ {&hf_samples_timestamps_sample_3, {"Sample 3", "locamation-im.samples.timestamps.sample.3", FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL}},
+ {&hf_samples_timestamps_sample_4, {"Sample 4", "locamation-im.samples.timestamps.sample.4", FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL}},
+ {&hf_samples_timestamps_sample_5, {"Sample 5", "locamation-im.samples.timestamps.sample.5", FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL}},
+ {&hf_samples_timestamps_sample_6, {"Sample 6", "locamation-im.samples.timestamps.sample.6", FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL}},
+ {&hf_samples_timestamps_sample_7, {"Sample 7", "locamation-im.samples.timestamps.sample.7", FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL}},
+ {&hf_samples_timestamps_sample_8, {"Sample 8", "locamation-im.samples.timestamps.sample.8", FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL}},
+ {&hf_samples_timestamps_sample_sync_status, {"Sync Status", "locamation-im.samples.timestamps.sample.sync.status", FT_UINT8, BASE_DEC, VALS(samples_timestamps_sample_sync_status), 0x0, NULL, HFILL}},
+ {&hf_samples_timestamps_sample_additional_status, {"Additional Status", "locamation-im.samples.timestamps.sample.additional.status", FT_UINT8, BASE_HEX, NULL, 0x0, NULL, HFILL}},
+ {&hf_samples_timestamps_sample_additional_status_holdover_state, {"Holdover", "locamation-im.samples.timestamps.sample.additional.status.holdover.state", FT_BOOLEAN, 8, TFS(&tfs_active_inactive), MASK_TIMESTAMP_ADDITIONAL_STATUS_HOLDOVER_STATE, NULL, HFILL}},
+ {&hf_samples_timestamps_sample_additional_status_master_clock_switch, {"Master Clock Switch", "locamation-im.samples.timestamps.sample.additional.status.master.clock.switch", FT_BOOLEAN, 8, TFS(&tfs_yes_no), MASK_TIMESTAMP_ADDITIONAL_STATUS_MASTER_CLOCK_SWITCH, NULL, HFILL}},
+ {&hf_samples_timestamps_sample_timestamp, {"Timestamp", "locamation-im.samples.timestamps.sample.timestamp", FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL}},
+ {&hf_samples_timestamps_sample_timestamp_seconds, {"Seconds", "locamation-im.samples.timestamps.sample.timestamp.seconds", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL}},
+ {&hf_samples_timestamps_sample_timestamp_nanoseconds, {"Nanoseconds", "locamation-im.samples.timestamps.sample.timestamp.nanoseconds", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL}}};
+
+static ei_register_info ei_samples_im2r0[] = {
+ {&ei_samples_im_version_invalid, {"locamation-im.samples.control.version.invalid", PI_MALFORMED, PI_ERROR, "Invalid Version", EXPFILL}},
+ {&ei_samples_timestamp_sync_status_invalid, {"locamation-im.samples.timestamps.sample.sync.status.invalid", PI_MALFORMED, PI_ERROR, "Invalid Status", EXPFILL}}};
+
+static int h_protocol_samples_im2r0 = -1;
+
+static int dissect_samples_im2r0(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data) {
+ return dissect_samples_im(FALSE, tvb, pinfo, tree, data, h_protocol_samples_im2r0);
+}
+
+/*
+ * ########################################################################
+ * #
+ * # LLC
+ * #
+ * ########################################################################
+ */
+
+static int hf_llc_company_pid;
+
+static hf_register_info llc_registration[] = {
+ {&hf_llc_company_pid, {"PID", "locamation-im.llc.pid", FT_UINT16, BASE_HEX, VALS(company_pid_vals), 0x0, "Protocol ID", HFILL}}};
+
+/*
+ * ########################################################################
+ * #
+ * # Registration
+ * #
+ * ########################################################################
+ */
+
+static gint *protocol_subtree[] = {
+ &ett_protocol_calibration,
+ &ett_calibration_lines,
+
+ &ett_protocol_ident,
+ &ett_ident_lines,
+
+ &ett_samples_sample_set_ranges,
+ &ett_protocol_samples,
+ &ett_samples_control,
+ &ett_samples_sets,
+ &ett_samples_sets_set,
+ &ett_samples_rms,
+ &ett_samples_rms_values,
+ &ett_samples_timestamps,
+ &ett_samples_timestamps_set,
+ &ett_samples_timestamps_sample,
+ &ett_samples_timestamps_sample_timestamp,
+ &ett_samples_timestamps_sample_reserved};
+
+static dissector_handle_t h_calibration;
+static dissector_handle_t h_ident;
+static dissector_handle_t h_samples_im1;
+static dissector_handle_t h_samples_im2r0;
+
+void proto_register_locamation_im(void) {
+ /* Setup subtrees */
+ proto_register_subtree_array(protocol_subtree, array_length(protocol_subtree));
+
+ /* Register Protocols */
+
+ /* Calibration */
+ h_protocol_calibration = proto_register_protocol(PROTOCOL_NAME_CALIBRATION, PROTOCOL_SHORTNAME_CALIBRATION, "locamation-im.calibration");
+ proto_register_field_array(h_protocol_calibration, protocol_registration_calibration, array_length(protocol_registration_calibration));
+ expert_module_t *expert_calibration = expert_register_protocol(h_protocol_calibration);
+ expert_register_field_array(expert_calibration, ei_calibration, array_length(ei_calibration));
+
+ /* Ident */
+ h_protocol_ident = proto_register_protocol(PROTOCOL_NAME_IDENT, PROTOCOL_SHORTNAME_IDENT, "locamation-im.ident");
+ proto_register_field_array(h_protocol_ident, protocol_registration_ident, array_length(protocol_registration_ident));
+
+ /* Samples - IM1 */
+ h_protocol_samples_im1 = proto_register_protocol(PROTOCOL_NAME_SAMPLES_IM1, PROTOCOL_SHORTNAME_SAMPLES_IM1, "locamation-im.samples.im1");
+ proto_register_field_array(h_protocol_samples_im1, protocol_registration_samples, array_length(protocol_registration_samples));
+ expert_module_t *expert_samples_im1 = expert_register_protocol(h_protocol_samples_im1);
+ expert_register_field_array(expert_samples_im1, ei_samples_im1, array_length(ei_samples_im1));
+
+ /* Samples - IM2R0 */
+ h_protocol_samples_im2r0 = proto_register_protocol(PROTOCOL_NAME_SAMPLES_IM2R0, PROTOCOL_SHORTNAME_SAMPLES_IM2R0, "locamation-im.samples.im2r0");
+ proto_register_field_array(h_protocol_samples_im2r0, protocol_registration_samples_im2, array_length(protocol_registration_samples_im2));
+ expert_module_t *expert_samples_im2r0 = expert_register_protocol(h_protocol_samples_im2r0);
+ expert_register_field_array(expert_samples_im2r0, ei_samples_im2r0, array_length(ei_samples_im2r0));
+
+ /* LLC Handler Registration */
+ llc_add_oui(COMPANY_OUI, "locamation-im.llc.pid", "LLC " COMPANY_NAME " OUI PID", llc_registration, -1);
+}
+
+void proto_reg_handoff_locamation_im(void) {
+ /* Calibration */
+ h_calibration = create_dissector_handle(dissect_calibration, h_protocol_calibration);
+ dissector_add_uint("locamation-im.llc.pid", COMPANY_PID_CALIBRATION, h_calibration);
+
+ /* Ident */
+ h_ident = create_dissector_handle(dissect_ident, h_protocol_ident);
+ dissector_add_uint("locamation-im.llc.pid", COMPANY_PID_IDENT, h_ident);
+
+ /* Samples - IM1 */
+ h_samples_im1 = create_dissector_handle(dissect_samples_im1, h_protocol_samples_im1);
+ dissector_add_uint("locamation-im.llc.pid", COMPANY_PID_SAMPLES_IM1, h_samples_im1);
+
+ /* Samples - IM2R0 */
+ h_samples_im2r0 = create_dissector_handle(dissect_samples_im2r0, h_protocol_samples_im2r0);
+ dissector_add_uint("locamation-im.llc.pid", COMPANY_PID_SAMPLES_IM2R0, h_samples_im2r0);
+}
+
+/*
+ * 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:
+ */
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-24 19:40:06 +0000