Adding upstream version 4.2.2.upstream/4.2.2

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

1 files changed, 114 insertions, 0 deletions

diff --git a/epan/dissectors/packet-l1-events.c b/epan/dissectors/packet-l1-events.c
new file mode 100644
index 0000000..13e3752
--- /dev/null
+++ b/epan/dissectors/packet-l1-events.c
@@ -0,0 +1,114 @@
+/* packet-l1-events.c
+ * Routines for text-based layer 1 messages in EyeSDN trace files
+ *
+ * (C) Rolf Fiedler 2008, based on packet-text-media.c by Olivier Biot, 2004.
+ *
+ * Refer to the AUTHORS file or the AUTHORS section in the man page
+ * for contacting the author(s) of this file.
+ *
+ * Wireshark - Network traffic analyzer
+ * By Gerald Combs <gerald@wireshark.org>
+ * Copyright 1998 Gerald Combs
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
+
+/* Edit this file with 4-space tabs */
+
+#include "config.h"
+
+#include <epan/packet.h>
+#include <wiretap/wtap.h>
+
+void proto_register_l1_events(void);
+void proto_reg_handoff_l1_events(void);
+
+static dissector_handle_t l1_events_handle;
+/*
+ * dissector for line-based text messages from layer 1
+ */
+
+/* Filterable header fields */
+static gint proto_l1_events = -1;
+
+/* Subtrees */
+static gint ett_l1_events = -1;
+
+static int
+dissect_l1_events(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_)
+{
+	proto_tree	*subtree;
+	proto_item	*ti;
+	gint		offset = 0, next_offset;
+	gint		len;
+
+	col_set_str(pinfo->cinfo, COL_PROTOCOL, "Layer1");
+	col_set_str(pinfo->cinfo, COL_DEF_SRC,
+			    pinfo->pseudo_header->l1event.uton? "TE" : "NT");
+	len = tvb_find_line_end(tvb, 0, -1, &next_offset, FALSE);
+	if(len>0)
+		col_add_str(pinfo->cinfo, COL_INFO, tvb_format_text(pinfo->pool, tvb, 0, len));
+
+	if (tree) {
+		ti = proto_tree_add_item(tree, proto_l1_events,
+				tvb, 0, -1, ENC_NA);
+		subtree = proto_item_add_subtree(ti, ett_l1_events);
+		/* Read the media line by line */
+		while (tvb_offset_exists(tvb, offset)) {
+			/*
+			 * XXX - we need to be passed the parameters
+			 * of the content type via data parameter,
+			 * so that we know the character set.  We'd
+			 * have to handle that character set, which
+			 * might be a multibyte character set such
+			 * as "iso-10646-ucs-2", or might require other
+			 * special processing.
+			 */
+			len = tvb_find_line_end(tvb, offset, -1, &next_offset, FALSE);
+			if (len == -1)
+				break;
+
+			/* We use next_offset - offset instead of len in the
+			 * call to proto_tree_add_format_text() so it will include the
+			 * line terminator(s) (\r and/or \n) in the display.
+			 */
+			proto_tree_add_format_text(subtree, tvb, offset, next_offset - offset);
+			offset = next_offset;
+		}
+	}
+
+	return tvb_captured_length(tvb);
+}
+
+void
+proto_register_l1_events(void)
+{
+	static gint *ett[] = {
+		&ett_l1_events,
+	};
+
+	proto_register_subtree_array(ett, array_length(ett));
+
+	proto_l1_events = proto_register_protocol("Layer 1 Event Messages", "Layer 1 Events", "data-l1-events");
+
+	l1_events_handle = register_dissector("data-l1-events", dissect_l1_events, proto_l1_events);
+}
+
+void
+proto_reg_handoff_l1_events(void)
+{
+	dissector_add_uint("wtap_encap", WTAP_ENCAP_LAYER1_EVENT, l1_events_handle); /* for text msgs from trace files */
+}
+
+/*
+ * 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:
+ */