Adding upstream version 4.2.2.upstream/4.2.2

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

1 files changed, 303 insertions, 0 deletions

diff --git a/epan/dissectors/packet-manolito.c b/epan/dissectors/packet-manolito.c
new file mode 100644
index 00000000..5fd7d770
--- /dev/null
+++ b/epan/dissectors/packet-manolito.c
@@ -0,0 +1,303 @@
+/* packet-manolito.c
+ * Routines for Blubster/Piolet Manolito Protocol dissection
+ * Copyright 2003-2004, Jeff Connelly <shellreef+mp2p@gmail.com>
+ *
+ * Official home page: http://openlito.sourceforge.net/
+ *
+ * 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 <epan/expert.h>
+
+void proto_register_manolito(void);
+void proto_reg_handoff_manolito(void);
+
+static dissector_handle_t manolito_handle;
+
+#define MANOLITO_PORT   41170 /* Not IANA registered */
+
+static int proto_manolito = -1;
+
+static int hf_manolito_checksum = -1;
+static int hf_manolito_seqno = -1;
+static int hf_manolito_src = -1;
+static int hf_manolito_dest = -1;
+static int hf_manolito_options_short = -1;
+static int hf_manolito_options = -1;
+static int hf_manolito_string = -1;
+static int hf_manolito_integer = -1;
+
+static gint ett_manolito = -1;
+
+static expert_field ei_manolito_type = EI_INIT;
+
+#define MANOLITO_STRING  1
+#define MANOLITO_INTEGER 0
+
+static const value_string field_longname[] = {
+	{ 0x4144, "???" },
+	{ 0x4252, "Bit Rate" },
+	{ 0x434b, "Checksum" },
+	{ 0x434e, "Client Name" },
+	{ 0x4356, "Client Version" },
+	{ 0x4643, "Frequency" },
+	{ 0x464c, "File Length" },
+	{ 0x464e, "Filename" },
+	{ 0x484e, "???" },
+	{ 0x4944, "Identification" },
+	{ 0x4d45, "Message" },
+	{ 0x4e43, "Num. Connections" },
+	{ 0x4e49, "Network ID" },
+	{ 0x4e4e, "Nickname" },
+	{ 0x5054, "Port" },
+	{ 0x5346, "Shared Files" },
+	{ 0x534b, "Shared Kilobytes" },
+	{ 0x534c, "Song Length (s)" },
+	{ 0x5354, "???" },
+	{ 0x564c, "Velocity" },
+	{ 0, NULL }
+};
+static value_string_ext field_longname_ext = VALUE_STRING_EXT_INIT(field_longname);
+
+
+static int
+dissect_manolito(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* dissector_data _U_)
+{
+	gint offset = 0;
+	proto_item *ti;
+	proto_tree *manolito_tree;
+	gchar *packet_type = NULL;
+
+	col_set_str(pinfo->cinfo, COL_PROTOCOL, "MANOLITO");
+
+	ti = proto_tree_add_item(tree, proto_manolito, tvb, offset, -1, ENC_NA);
+
+	manolito_tree = proto_item_add_subtree(ti, ett_manolito);
+
+	/* MANOLITO packet header (network byte order) */
+	proto_tree_add_checksum(manolito_tree, tvb, offset, hf_manolito_checksum,
+	    -1, NULL, pinfo, 0, ENC_BIG_ENDIAN, PROTO_CHECKSUM_NO_FLAGS);
+	offset += 4;
+	proto_tree_add_item(manolito_tree,
+	    hf_manolito_seqno, tvb, offset, 4, ENC_BIG_ENDIAN);
+	offset += 4;
+	proto_tree_add_item(manolito_tree,
+	    hf_manolito_src, tvb, offset, 4, ENC_BIG_ENDIAN);
+	offset += 4;
+	proto_tree_add_item(manolito_tree,
+	    hf_manolito_dest, tvb, offset, 4, ENC_BIG_ENDIAN);
+	offset += 4;
+
+	if (tvb_reported_length_remaining(tvb, offset) == 3) {
+		proto_tree_add_item(manolito_tree,
+		    hf_manolito_options_short, tvb, offset, 3, ENC_BIG_ENDIAN);
+		offset += 3;
+		col_set_str(pinfo->cinfo, COL_INFO, "Ping (truncated)");
+		return offset;
+	}
+
+	proto_tree_add_item(manolito_tree,
+			hf_manolito_options, tvb, 16, 4, ENC_BIG_ENDIAN);
+	offset += 4;
+
+	if (tvb_reported_length_remaining(tvb, offset) == 0) {
+		col_set_str(pinfo->cinfo, COL_INFO, "Ping");
+		return offset;
+	}
+
+	/* fields format: 2-byte name, optional NULL, 1-byte lenlen, */
+	/* that many bytes(len or data), for NI,CN,VL is len, more */
+	/* (that many bytes) data follows; else is raw data. */
+	do
+	{
+		guint16     field_name;        /* 16-bit field name */
+		guint8      dtype;             /* data-type */
+		guint8      length;            /* length */
+		int         start;             /* field starting location */
+		guint8     *field_name_str;
+
+		start = offset;
+
+		/* 2-byte field name */
+		field_name = tvb_get_ntohs(tvb, offset);
+		field_name_str = tvb_get_string_enc(pinfo->pool, tvb, offset, 2, ENC_ASCII);
+		if (!packet_type) {
+			/* Identify the packet based on existing fields */
+			/* Maybe using the options fields is a better idea...*/
+			if (field_name == 0x434b)    /* CK */
+				packet_type = "Search Hit";
+			if (field_name == 0x4e43)    /* NC */
+				packet_type = "User Information";
+			if (field_name == 0x464e)    /* FN - if only field */
+				packet_type = "Search Query";
+			if (field_name == 0x4944)    /* ID ?? search by CK? */
+				packet_type = "Search Query (by hash)";
+			if (field_name == 0x5054)    /* PT */
+				packet_type = "Download Request";
+			if (field_name == 0x4d45)    /* ME */
+				packet_type = "Chat";
+		}
+		offset += 2;
+
+		/* 1-byte data type */
+		dtype = tvb_get_guint8(tvb, offset);
+		offset++;
+		length = tvb_get_guint8(tvb, offset);
+		offset++;
+
+		if (dtype == MANOLITO_STRING) {
+			guint8 *str;
+
+			str = tvb_get_string_enc(pinfo->pool, tvb, offset, length, ENC_ASCII);
+			proto_tree_add_string_format(manolito_tree, hf_manolito_string, tvb, start,
+					4+length, str, "%s (%s): %s",
+					field_name_str,
+					val_to_str_ext_const(field_name, &field_longname_ext, "unknown"),
+					str);
+			offset += length;
+		}
+		else if (dtype == MANOLITO_INTEGER) {
+			gboolean len_ok = TRUE;
+			guint64 n = 0;
+
+			/* integers can be up to 5 bytes */
+			switch(length)
+			{
+				case 5:
+					n = tvb_get_ntoh40(tvb, offset);
+					break;
+				case 4:
+					n = tvb_get_ntohl(tvb, offset);
+					break;
+				case 3:
+					n = tvb_get_ntoh24(tvb, offset);
+					break;
+				case 2:
+					n = tvb_get_ntohs(tvb, offset);
+					break;
+				case 1:
+					n = tvb_get_guint8(tvb, offset);
+					break;
+
+				default:
+					len_ok = FALSE;
+			}
+
+			if (len_ok) {
+				proto_tree_add_uint64_format(manolito_tree, hf_manolito_integer, tvb, start,
+						4+length, n, "%s (%s): %" PRIu64,
+						field_name_str,
+						val_to_str_ext_const(field_name, &field_longname_ext, "unknown"),
+						n);
+			}
+			else {
+				/* XXX - expert info */
+			}
+			offset += length;
+		}
+		else {
+			proto_tree_add_expert_format(manolito_tree, pinfo, &ei_manolito_type,
+					tvb, start, offset - start, "Unknown type %d", dtype);
+		}
+
+	} while(tvb_reported_length_remaining(tvb, offset));
+
+	if (packet_type)
+		col_set_str(pinfo->cinfo, COL_INFO, packet_type);
+
+	return offset;
+}
+
+
+void
+proto_register_manolito(void)
+{
+	static hf_register_info hf[] = {
+		{ &hf_manolito_checksum,
+		  { "Checksum", "manolito.checksum",
+		    FT_UINT32, BASE_HEX, NULL, 0,
+		    "Checksum used for verifying integrity", HFILL }
+		},
+		{ &hf_manolito_seqno,
+		  { "Sequence Number", "manolito.seqno",
+		    FT_UINT32, BASE_HEX, NULL, 0,
+		    "Incremental sequence number", HFILL }
+		},
+		{ &hf_manolito_src,
+		  { "Forwarded IP Address", "manolito.src",
+		    FT_IPv4, BASE_NONE, NULL, 0,
+		    "Host packet was forwarded from (or 0)", HFILL }
+		},
+		{ &hf_manolito_dest,
+		  { "Destination IP Address", "manolito.dest",
+		    FT_IPv4, BASE_NONE, NULL, 0,
+		    "Destination IPv4 address", HFILL }
+		},
+		{ &hf_manolito_options_short,
+		  { "Options", "manolito.options",
+		    FT_UINT24, BASE_HEX, NULL, 0,
+		    "Packet-dependent data", HFILL }
+		},
+		{ &hf_manolito_options,
+		  { "Options", "manolito.options",
+		    FT_UINT32, BASE_HEX, NULL, 0,
+		    "Packet-dependent data", HFILL }
+		},
+		{ &hf_manolito_string,
+		  { "String field", "manolito.string",
+		    FT_STRING, BASE_NONE, NULL, 0,
+		    NULL, HFILL }
+		},
+		{ &hf_manolito_integer,
+		  { "Integer field", "manolito.integer",
+		    FT_UINT40, BASE_DEC, NULL, 0,
+		    NULL, HFILL }
+		},
+	};
+
+	static gint *ett[] = {
+		&ett_manolito,
+	};
+
+	static ei_register_info ei[] = {
+		{ &ei_manolito_type, { "manolito.type.unknown", PI_PROTOCOL, PI_WARN, "Unknown type", EXPFILL }},
+	};
+
+	expert_module_t* expert_manolito;
+
+	proto_manolito = proto_register_protocol("Blubster/Piolet MANOLITO Protocol", "Manolito", "manolito");
+
+	proto_register_field_array(proto_manolito, hf, array_length(hf));
+	proto_register_subtree_array(ett, array_length(ett));
+	expert_manolito = expert_register_protocol(proto_manolito);
+	expert_register_field_array(expert_manolito, ei, array_length(ei));
+
+	manolito_handle = register_dissector("manolito", dissect_manolito, proto_manolito);
+}
+
+
+void
+proto_reg_handoff_manolito(void)
+{
+	dissector_add_uint_with_preference("udp.port", MANOLITO_PORT, manolito_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:
+ */