Adding upstream version 4.2.2.upstream/4.2.2

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 295 insertions, 0 deletions

diff --git a/epan/dissectors/packet-dvb-eit.c b/epan/dissectors/packet-dvb-eit.c
new file mode 100644
index 00000000..60493319
--- /dev/null
+++ b/epan/dissectors/packet-dvb-eit.c
@@ -0,0 +1,295 @@
+/* packet-dvb-eit.c
+ * Routines for DVB (ETSI EN 300 468) Event Information Table (EIT) dissection
+ * Copyright 2012, Guy Martin <gmsoft@tuxicoman.be>
+ *
+ * Wireshark - Network traffic analyzer
+ * By Gerald Combs <gerald@wireshark.org>
+ * Copyright 1998 Gerald Combs
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
+
+#include "config.h"
+
+#include <epan/packet.h>
+#include "packet-mpeg-sect.h"
+#include "packet-mpeg-descriptor.h"
+
+void proto_register_dvb_eit(void);
+void proto_reg_handoff_dvb_eit(void);
+
+static dissector_handle_t dvb_eit_handle;
+
+static int proto_dvb_eit = -1;
+static int hf_dvb_eit_service_id = -1;
+static int hf_dvb_eit_reserved = -1;
+static int hf_dvb_eit_version_number = -1;
+static int hf_dvb_eit_current_next_indicator = -1;
+static int hf_dvb_eit_section_number = -1;
+static int hf_dvb_eit_last_section_number = -1;
+
+static int hf_dvb_eit_transport_stream_id = -1;
+static int hf_dvb_eit_original_network_id = -1;
+static int hf_dvb_eit_segment_last_section_number = -1;
+static int hf_dvb_eit_last_table_id = -1;
+
+static int hf_dvb_eit_event_id = -1;
+static int hf_dvb_eit_start_time = -1;
+static int hf_dvb_eit_duration = -1;
+static int hf_dvb_eit_running_status = -1;
+static int hf_dvb_eit_free_ca_mode = -1;
+static int hf_dvb_eit_descriptors_loop_length = -1;
+
+static gint ett_dvb_eit = -1;
+static gint ett_dvb_eit_event = -1;
+
+
+#define DVB_EIT_RESERVED_MASK                     0xC0
+#define DVB_EIT_VERSION_NUMBER_MASK               0x3E
+#define DVB_EIT_CURRENT_NEXT_INDICATOR_MASK       0x01
+
+#define DVB_EIT_RUNNING_STATUS_MASK             0xE000
+#define DVB_EIT_FREE_CA_MODE_MASK               0x1000
+#define DVB_EIT_DESCRIPTORS_LOOP_LENGTH_MASK    0x0FFF
+
+static const value_string dvb_eit_running_status_vals[] = {
+    { 0, "Undefined" },
+    { 1, "Not Running" },
+    { 2, "Starts in a few seconds" },
+    { 3, "Pausing" },
+    { 4, "Running" },
+    { 5, "Service off-air" },
+
+    { 0, NULL }
+};
+
+static const value_string dvb_eit_free_ca_mode_vals[] = {
+    { 0, "Not Scrambled" },
+    { 1, "One or more component scrambled" },
+
+    { 0, NULL }
+};
+
+static int
+dissect_dvb_eit(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_)
+{
+
+    guint       offset = 0, length = 0;
+    guint       descriptor_len;
+    guint16     evt_id;
+
+    proto_item *ti;
+    proto_tree *dvb_eit_tree;
+    proto_tree *dvb_eit_event_tree;
+    proto_item *duration_item;
+
+    nstime_t    start_time;
+
+    col_set_str(pinfo->cinfo, COL_INFO, "Event Information Table (EIT)");
+
+    ti = proto_tree_add_item(tree, proto_dvb_eit, tvb, offset, -1, ENC_NA);
+    dvb_eit_tree = proto_item_add_subtree(ti, ett_dvb_eit);
+
+    offset += packet_mpeg_sect_header(tvb, offset, dvb_eit_tree, &length, NULL);
+    length -= 4;
+
+    proto_tree_add_item(dvb_eit_tree, hf_dvb_eit_service_id,                  tvb, offset, 2, ENC_BIG_ENDIAN);
+    offset += 2;
+
+    proto_tree_add_item(dvb_eit_tree, hf_dvb_eit_reserved,                    tvb, offset, 1, ENC_BIG_ENDIAN);
+    proto_tree_add_item(dvb_eit_tree, hf_dvb_eit_version_number,              tvb, offset, 1, ENC_BIG_ENDIAN);
+    proto_tree_add_item(dvb_eit_tree, hf_dvb_eit_current_next_indicator,      tvb, offset, 1, ENC_BIG_ENDIAN);
+    offset += 1;
+
+    proto_tree_add_item(dvb_eit_tree, hf_dvb_eit_section_number,              tvb, offset, 1, ENC_BIG_ENDIAN);
+    offset += 1;
+
+    proto_tree_add_item(dvb_eit_tree, hf_dvb_eit_last_section_number,         tvb, offset, 1, ENC_BIG_ENDIAN);
+    offset += 1;
+
+    proto_tree_add_item(dvb_eit_tree, hf_dvb_eit_transport_stream_id,         tvb, offset, 2, ENC_BIG_ENDIAN);
+    offset += 2;
+
+    proto_tree_add_item(dvb_eit_tree, hf_dvb_eit_original_network_id,         tvb, offset, 2, ENC_BIG_ENDIAN);
+    offset += 2;
+
+    proto_tree_add_item(dvb_eit_tree, hf_dvb_eit_segment_last_section_number, tvb, offset, 1, ENC_BIG_ENDIAN);
+    offset += 1;
+
+    proto_tree_add_item(dvb_eit_tree, hf_dvb_eit_last_table_id, tvb, offset, 1, ENC_BIG_ENDIAN);
+    offset += 1;
+
+    if (offset >= length) {
+        packet_mpeg_sect_crc(tvb, pinfo, dvb_eit_tree, 0, offset);
+
+        return offset;
+    }
+
+    /* Parse all the events */
+    while (offset < length) {
+
+        evt_id = tvb_get_ntohs(tvb, offset);
+        dvb_eit_event_tree = proto_tree_add_subtree_format(dvb_eit_tree, tvb, offset, 12, ett_dvb_eit_event, NULL, "Event 0x%04hx", evt_id);
+
+        proto_tree_add_item(dvb_eit_event_tree, hf_dvb_eit_event_id, tvb, offset, 2, ENC_BIG_ENDIAN);
+        offset += 2;
+
+        if (tvb_memeql(tvb, offset, (const guint8*)"\xFF\xFF\xFF\xFF\xFF", 5)) {
+            if (packet_mpeg_sect_mjd_to_utc_time(tvb, offset, &start_time) < 0) {
+                proto_tree_add_time_format(dvb_eit_event_tree, hf_dvb_eit_start_time, tvb, offset, 5,
+                                    &start_time, "Unparseable time");
+            } else {
+                proto_tree_add_time(dvb_eit_event_tree, hf_dvb_eit_start_time, tvb, offset,
+                    5, &start_time);
+            }
+        } else {
+            start_time.secs = 0xFFFFFFFF;
+            start_time.nsecs = 0xFFFFFFFF;
+            proto_tree_add_time_format_value(tree, hf_dvb_eit_start_time, tvb, offset, 5, &start_time, "Undefined (0xFFFFFFFFFF)");
+        }
+        offset += 5;
+
+        duration_item = proto_tree_add_item(dvb_eit_event_tree, hf_dvb_eit_duration, tvb, offset, 3, ENC_BIG_ENDIAN);
+        proto_item_append_text(duration_item, " (%02u:%02u:%02u)",
+            MPEG_SECT_BCD44_TO_DEC(tvb_get_guint8(tvb, offset)),
+            MPEG_SECT_BCD44_TO_DEC(tvb_get_guint8(tvb, offset + 1)),
+            MPEG_SECT_BCD44_TO_DEC(tvb_get_guint8(tvb, offset + 2)));
+        offset += 3;
+
+        proto_tree_add_item(dvb_eit_event_tree, hf_dvb_eit_running_status,          tvb, offset, 2, ENC_BIG_ENDIAN);
+        proto_tree_add_item(dvb_eit_event_tree, hf_dvb_eit_free_ca_mode,            tvb, offset, 2, ENC_BIG_ENDIAN);
+        proto_tree_add_item(dvb_eit_event_tree, hf_dvb_eit_descriptors_loop_length, tvb, offset, 2, ENC_BIG_ENDIAN);
+        descriptor_len = tvb_get_ntohs(tvb, offset) & DVB_EIT_DESCRIPTORS_LOOP_LENGTH_MASK;
+        offset += 2;
+
+        offset += proto_mpeg_descriptor_loop_dissect(tvb, offset, descriptor_len, dvb_eit_event_tree);
+    }
+
+    offset += packet_mpeg_sect_crc(tvb, pinfo, dvb_eit_tree, 0, offset);
+    proto_item_set_len(ti, offset);
+    return tvb_captured_length(tvb);
+}
+
+
+void
+proto_register_dvb_eit(void)
+{
+
+    static hf_register_info hf[] = {
+
+        { &hf_dvb_eit_service_id, {
+            "Service ID", "dvb_eit.sid",
+            FT_UINT16, BASE_HEX, NULL, 0, NULL, HFILL
+        } },
+
+        { &hf_dvb_eit_reserved, {
+            "Reserved", "dvb_eit.reserved",
+            FT_UINT8, BASE_HEX, NULL, DVB_EIT_RESERVED_MASK, NULL, HFILL
+        } },
+
+        { &hf_dvb_eit_version_number, {
+            "Version Number", "dvb_eit.version",
+            FT_UINT8, BASE_HEX, NULL, DVB_EIT_VERSION_NUMBER_MASK, NULL, HFILL
+        } },
+
+        { &hf_dvb_eit_current_next_indicator, {
+            "Current/Next Indicator", "dvb_eit.cur_next_ind",
+            FT_BOOLEAN, 8, TFS(&tfs_current_not_yet), DVB_EIT_CURRENT_NEXT_INDICATOR_MASK, NULL, HFILL
+        } },
+
+        { &hf_dvb_eit_section_number, {
+            "Section Number", "dvb_eit.sect_num",
+            FT_UINT8, BASE_DEC, NULL, 0, NULL, HFILL
+        } },
+
+        { &hf_dvb_eit_last_section_number, {
+            "Last Section Number", "dvb_eit.last_sect_num",
+            FT_UINT8, BASE_DEC, NULL, 0, NULL, HFILL
+        } },
+
+        { &hf_dvb_eit_transport_stream_id, {
+            "Transport Stream ID", "dvb_eit.tsid",
+            FT_UINT16, BASE_HEX, NULL, 0, NULL, HFILL
+        } },
+
+        { &hf_dvb_eit_original_network_id, {
+            "Original Network ID", "dvb_eit.original_nid",
+            FT_UINT16, BASE_HEX, NULL, 0, NULL, HFILL
+        } },
+
+        { &hf_dvb_eit_segment_last_section_number, {
+            "Segment Last Section Number", "dvb_eit.segment_last_sect_num",
+            FT_UINT8, BASE_DEC, NULL, 0, NULL, HFILL
+        } },
+
+        { &hf_dvb_eit_last_table_id, {
+            "Last Table ID", "dvb_eit.last_tid",
+            FT_UINT8, BASE_HEX, NULL, 0, NULL, HFILL
+        } },
+
+        { &hf_dvb_eit_event_id, {
+            "Event ID", "dvb_eit.evt.id",
+            FT_UINT16, BASE_HEX, NULL, 0, NULL, HFILL
+        } },
+
+        { &hf_dvb_eit_start_time, {
+            "UTC Start Time", "dvb_eit.evt.start_time",
+            FT_ABSOLUTE_TIME, ABSOLUTE_TIME_UTC, NULL, 0, NULL, HFILL
+        } },
+
+        { &hf_dvb_eit_duration, {
+            "Duration", "dvb_eit.evt.duration",
+            FT_UINT24, BASE_HEX, NULL, 0, NULL, HFILL
+        } },
+
+        { &hf_dvb_eit_running_status, {
+            "Running Status", "dvb_eit.evt.running_status",
+            FT_UINT16, BASE_HEX, VALS(dvb_eit_running_status_vals), DVB_EIT_RUNNING_STATUS_MASK, NULL, HFILL
+        } },
+
+        { &hf_dvb_eit_free_ca_mode, {
+            "Free CA Mode", "dvb_eit.evt.free_ca_mode",
+            FT_UINT16, BASE_HEX, VALS(dvb_eit_free_ca_mode_vals), DVB_EIT_FREE_CA_MODE_MASK, NULL, HFILL
+        } },
+
+        { &hf_dvb_eit_descriptors_loop_length, {
+            "Descriptors Loop Length", "dvb_eit.evt.descr_loop_len",
+            FT_UINT16, BASE_DEC, NULL, DVB_EIT_DESCRIPTORS_LOOP_LENGTH_MASK, NULL, HFILL
+        } }
+    };
+
+    static gint *ett[] = {
+        &ett_dvb_eit,
+        &ett_dvb_eit_event
+    };
+
+    proto_dvb_eit = proto_register_protocol("DVB Event Information Table", "DVB EIT", "dvb_eit");
+
+    proto_register_field_array(proto_dvb_eit, hf, array_length(hf));
+    proto_register_subtree_array(ett, array_length(ett));
+
+    dvb_eit_handle = register_dissector("dvb_eit", dissect_dvb_eit, proto_dvb_eit);
+}
+
+
+void proto_reg_handoff_dvb_eit(void)
+{
+    int tid;
+
+    for (tid = DVB_EIT_TID_MIN; tid <= DVB_EIT_TID_MAX; tid++)
+        dissector_add_uint("mpeg_sect.tid", tid, dvb_eit_handle);
+}
+
+
+/*
+ * 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:
+ */