Adding upstream version 4.2.2.upstream/4.2.2

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

1 files changed, 249 insertions, 0 deletions

diff --git a/epan/dissectors/packet-nt-tpcp.c b/epan/dissectors/packet-nt-tpcp.c
new file mode 100644
index 00000000..acf0a887
--- /dev/null
+++ b/epan/dissectors/packet-nt-tpcp.c
@@ -0,0 +1,249 @@
+/* packet-nt-tpcp.c
+ * Routines for Transparent Proxy Cache Protocol packet disassembly
+ * (c) Copyright Giles Scott <giles.scott1 [AT] btinternet.com>
+ *
+ * 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/addr_resolv.h> /* this is for get_hostname and udp_port_to_display */
+
+void proto_register_tpcp(void);
+void proto_reg_handoff_tpcp(void);
+
+static dissector_handle_t tpcp_handle;
+
+#define UDP_PORT_TPCP   3121 /* Not IANA registered */
+
+/* TPCP version1/2 PDU format */
+typedef struct _tpcppdu_t {
+	guint8	version;     /* PDU version 1 */
+	guint8	type;	     /* PDU type: 1=request, 2=reply, 3=add filter, 4=rem  filter */
+	                     /* Version 2 adds 5=add session 6= remove session */
+	guint16	flags;	     /* 0x0001: 0=UDP, 1=TCP*/
+	                     /* 0x0002: 0=NONE, 1=DONT_REDIRECT */
+	                     /* 0x0004: 0=NONE, 1=Xon */
+	                     /* 0x0008: 0=NONE, 1=Xoff */
+	guint16	id;	     /* request/response identification or TTL */
+	guint16	cport;	     /* client UDP or TCP port number */
+	guint32	caddr;	     /* client IPv4 address */
+	guint32	saddr;	     /* server IPV4 address */
+	/* tpcp version 2 only*/
+	guint32 vaddr;	     /* Virtual Server IPv4 address */
+	guint32 rasaddr;     /* RAS server IPv4 address */
+	guint32 signature;   /* 0x74706370 - tpcp */
+} tpcpdu_t;
+
+
+static const value_string type_vals[] = {
+	{ 1, "Request" },
+	{ 2, "Reply" },
+	{ 3, "Add Filter" },
+	{ 4, "Remove Filter" },
+	/* 5 and 6 are for version 2 only */
+	{ 5, "Add Session" },
+	{ 6, "Remove Session" },
+	{ 0,  NULL }
+};
+
+/* TPCP Flags */
+#define TF_TPCP_UDPTCP 0x0001
+#define TF_TPCP_DONTREDIRECT 0x0002
+#define TF_TPCP_XON 0x0004
+#define TF_TPCP_XOFF 0x0008
+
+
+/* Version info */
+#define TPCP_VER_1 1
+#define TPCP_VER_2 2
+
+#define TPCP_VER_1_LENGTH 16
+#define TPCP_VER_2_LENGTH 28
+
+/* things we can do filters on */
+static int hf_tpcp_version = -1;
+static int hf_tpcp_type = -1;
+static int hf_tpcp_flags = -1;
+static int hf_tpcp_flags_tcp = -1;
+static int hf_tpcp_flags_redir = -1;
+static int hf_tpcp_flags_xon = -1;
+static int hf_tpcp_flags_xoff = -1;
+static int hf_tpcp_id = -1;
+static int hf_tpcp_cport = -1;
+static int hf_tpcp_caddr = -1;
+static int hf_tpcp_saddr = -1;
+static int hf_tpcp_vaddr = -1;
+static int hf_tpcp_rasaddr = -1;
+static int hf_tpcp_signature = -1;
+
+static int proto_tpcp = -1;
+
+static gint ett_tpcp = -1;
+static gint ett_tpcp_flags = -1;
+
+
+static int
+dissect_tpcp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_)
+{
+	proto_tree *tpcp_tree = NULL;
+	proto_item *ti;
+	guint8	version, type;
+	guint16	id, cport;
+
+	static int * const tpcp_flags[] = {
+		&hf_tpcp_flags_tcp,
+		&hf_tpcp_flags_redir,
+		&hf_tpcp_flags_xon,
+		&hf_tpcp_flags_xoff,
+		NULL
+		};
+
+	col_set_str(pinfo->cinfo, COL_PROTOCOL, "TPCP");
+	col_clear(pinfo->cinfo, COL_INFO);
+
+	/* need to find out which version!! */
+	version = tvb_get_guint8(tvb, 0);
+	if ((version != TPCP_VER_1) && (version != TPCP_VER_2)) {
+		/* Not us */
+		return 0;
+	}
+
+	ti = proto_tree_add_protocol_format(tree, proto_tpcp, tvb, 0, -1,
+					    "Alteon WebSystems - Transparent Proxy Cache Protocol");
+
+	tpcp_tree = proto_item_add_subtree(ti, ett_tpcp);
+
+	proto_tree_add_item(tpcp_tree, hf_tpcp_version, tvb, 0, 1, ENC_BIG_ENDIAN);
+	type = tvb_get_guint8(tvb, 1);
+	proto_tree_add_item(tpcp_tree, hf_tpcp_type, tvb, 1, 1, ENC_BIG_ENDIAN);
+
+	proto_tree_add_bitmask(tpcp_tree, tvb, 2, hf_tpcp_flags, ett_tpcp_flags, tpcp_flags, ENC_NA);
+
+	id = tvb_get_ntohs(tvb, 4);
+	proto_tree_add_item(tpcp_tree, hf_tpcp_id, tvb, 4, 2, ENC_BIG_ENDIAN);
+
+	cport = tvb_get_ntohs(tvb, 6);
+	proto_tree_add_uint_format_value(tpcp_tree, hf_tpcp_cport, tvb, 6, 2, cport,
+					 "%s", udp_port_to_display(pinfo->pool, cport));
+
+	proto_tree_add_item(tpcp_tree, hf_tpcp_caddr, tvb, 8, 4, ENC_BIG_ENDIAN);
+	proto_tree_add_item(tpcp_tree, hf_tpcp_saddr, tvb, 12, 4, ENC_BIG_ENDIAN);
+
+	if (version == TPCP_VER_2) {
+		proto_tree_add_item(tpcp_tree, hf_tpcp_vaddr, tvb, 16, 4, ENC_BIG_ENDIAN);
+		proto_tree_add_item(tpcp_tree, hf_tpcp_rasaddr, tvb, 20, 4, ENC_BIG_ENDIAN);
+		proto_tree_add_item(tpcp_tree, hf_tpcp_signature, tvb, 24, 4, ENC_BIG_ENDIAN);
+	}
+
+	col_add_fstr(pinfo->cinfo, COL_INFO,"%s id %d CPort %s CIP %s SIP %s",
+			val_to_str_const(type, type_vals, "Unknown"),
+			id,
+			udp_port_to_display(pinfo->pool, cport),
+			tvb_ip_to_str(pinfo->pool, tvb, 8),
+			tvb_ip_to_str(pinfo->pool, tvb, 12));
+
+	if (version == TPCP_VER_1)
+		return TPCP_VER_1_LENGTH;
+
+	return TPCP_VER_2_LENGTH;
+}
+
+void
+proto_register_tpcp(void)
+{
+	static hf_register_info hf[] = {
+		{ &hf_tpcp_version,
+		{ "Version",		"tpcp.version", FT_UINT8, BASE_DEC, NULL, 0x0,
+		"TPCP version", HFILL }},
+
+		{ &hf_tpcp_type,
+		{ "Type",		"tpcp.type", FT_UINT8, BASE_DEC, VALS(type_vals), 0x0,
+		"PDU type", HFILL }},
+
+		{ &hf_tpcp_flags,
+		{ "Flags",		"tpcp.flags", FT_UINT16, BASE_HEX, NULL, 0x0,
+		NULL, HFILL }},
+
+		{ &hf_tpcp_flags_tcp,
+		{ "UDP/TCP",		"tpcp.flags.tcp", FT_BOOLEAN, 8, TFS(&tfs_set_notset), TF_TPCP_UDPTCP,
+		"Protocol type", HFILL }},
+
+		{ &hf_tpcp_flags_redir,
+		{ "No Redirect",	"tpcp.flags.redir", FT_BOOLEAN, 8, TFS(&tfs_set_notset), TF_TPCP_DONTREDIRECT,
+		"Don't redirect client", HFILL }},
+
+		{ &hf_tpcp_flags_xon,
+		{ "XON",		"tpcp.flags.xon", FT_BOOLEAN, 8, TFS(&tfs_set_notset), TF_TPCP_XON,
+		NULL, HFILL }},
+
+		{ &hf_tpcp_flags_xoff,
+		{ "XOFF",		"tpcp.flags.xoff", FT_BOOLEAN, 8, TFS(&tfs_set_notset), TF_TPCP_XOFF,
+		NULL, HFILL }},
+
+		{ &hf_tpcp_id,
+		{ "Client indent",	"tpcp.cid", FT_UINT16, BASE_DEC, NULL, 0x0,
+		NULL, HFILL }},
+
+		{ &hf_tpcp_cport,
+		{ "Client Source Port",	"tpcp.cport", FT_UINT16, BASE_DEC, NULL, 0x0,
+		NULL, HFILL }},
+
+		{ &hf_tpcp_caddr,
+		{ "Client Source IP address",	"tpcp.caddr", FT_IPv4, BASE_NONE, NULL, 0x0,
+		NULL, HFILL }},
+
+		{ &hf_tpcp_saddr,
+		{ "Server IP address",	"tpcp.saddr", FT_IPv4, BASE_NONE, NULL, 0x0,
+		NULL, HFILL }},
+
+		{ &hf_tpcp_vaddr,
+		{ "Virtual Server IP address", "tpcp.vaddr", FT_IPv4, BASE_NONE, NULL, 0x0,
+		NULL, HFILL }},
+
+		{ &hf_tpcp_rasaddr,
+		{ "RAS server IP address", "tpcp.rasaddr", FT_IPv4, BASE_NONE, NULL, 0x0,
+		NULL, HFILL }},
+
+		{ &hf_tpcp_signature,
+		{ "Signature",	"tpcp.signature", FT_UINT32, BASE_DEC, NULL, 0x0,
+		NULL, HFILL }},
+	};
+
+
+	static gint *ett[] = {
+		&ett_tpcp,
+		&ett_tpcp_flags,
+	};
+
+	proto_tpcp = proto_register_protocol("Alteon - Transparent Proxy Cache Protocol", "TPCP", "tpcp");
+	proto_register_field_array(proto_tpcp, hf, array_length(hf));
+	proto_register_subtree_array(ett, array_length(ett));
+
+	tpcp_handle = register_dissector("tpcp", dissect_tpcp, proto_tpcp);
+}
+
+void
+proto_reg_handoff_tpcp(void)
+{
+	dissector_add_uint_with_preference("udp.port", UDP_PORT_TPCP, tpcp_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:
+ */