Adding upstream version 4.2.2.upstream/4.2.2

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

1 files changed, 486 insertions, 0 deletions

diff --git a/epan/dissectors/packet-ipvs-syncd.c b/epan/dissectors/packet-ipvs-syncd.c
new file mode 100644
index 00000000..aa24f01e
--- /dev/null
+++ b/epan/dissectors/packet-ipvs-syncd.c
@@ -0,0 +1,486 @@
+/* packet-ipvs-syncd.c   2001 Ronnie Sahlberg <See AUTHORS for email>
+ * Routines for IGMP packet disassembly
+ *
+ * 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>
+
+void proto_register_ipvs_syncd(void);
+void proto_reg_handoff_ipvs_syncd(void);
+
+static dissector_handle_t ipvs_syncd_handle;
+
+static int proto_ipvs_syncd = -1;
+static int hf_conn_count = -1;
+static int hf_syncid = -1;
+static int hf_size = -1;
+static int hf_resv = -1;
+static int hf_version = -1;
+static int hf_proto = -1;
+static int hf_cport = -1;
+static int hf_vport = -1;
+static int hf_dport = -1;
+static int hf_caddr = -1;
+static int hf_vaddr = -1;
+static int hf_daddr = -1;
+static int hf_flags = -1;
+static int hf_flags_conn_type = -1;
+static int hf_flags_hashed_entry = -1;
+static int hf_flags_no_output_packets = -1;
+static int hf_flags_conn_not_established = -1;
+static int hf_flags_adjust_output_seq = -1;
+static int hf_flags_adjust_input_seq = -1;
+static int hf_flags_no_client_port_set = -1;
+static int hf_state = -1;
+static int hf_in_seq_init = -1;
+static int hf_in_seq_delta = -1;
+static int hf_in_seq_pdelta = -1;
+static int hf_out_seq_init = -1;
+static int hf_out_seq_delta = -1;
+static int hf_out_seq_pdelta = -1;
+
+/* Payload v1 */
+static int hf_type = -1;
+static int hf_ver = -1;
+static int hf_size_v1 = -1;
+static int hf_flags_v1 = -1;
+static int hf_fwmark  = -1;
+static int hf_timeout = -1;
+static int hf_caddr6 = -1;
+static int hf_vaddr6 = -1;
+static int hf_daddr6 = -1;
+
+static int ett_ipvs_syncd = -1;
+static int ett_conn = -1;
+static int ett_flags = -1;
+
+#define IPVS_SYNCD_MC_GROUP "224.0.0.18"
+#define IPVS_SYNCD_PORT 8848 /* Not IANA registered */
+
+static const value_string proto_strings[] = {
+	{0x06, "TCP"},
+	{0x11, "UDP"},
+	{0x00, NULL},
+};
+
+static const value_string state_strings[] = {
+	{0x00, "Input"},
+	{0x04, "Output"},
+	{0x08, "Input Only"},
+	{0x00, NULL},
+};
+
+static const value_string type_strings[] = {
+	{0x0, "IPv4"},
+	{0x2, "IPv6"},
+	{0x00, NULL},
+};
+
+/*
+ *  IPVS Connection Flags
+ *  Pulled from include/net/ip_vs.h in linux kernel source
+ */
+#define IP_VS_CONN_F_FWD_MASK         0x0007    /* mask for the fwd methods */
+#define IP_VS_CONN_F_MASQ             0x0000    /* masquerading */
+#define IP_VS_CONN_F_LOCALNODE        0x0001    /* local node */
+#define IP_VS_CONN_F_TUNNEL           0x0002    /* tunneling */
+#define IP_VS_CONN_F_DROUTE           0x0003    /* direct routing */
+#define IP_VS_CONN_F_BYPASS           0x0004    /* cache bypass */
+#define IP_VS_CONN_F_HASHED           0x0040    /* hashed entry */
+#define IP_VS_CONN_F_NOOUTPUT         0x0080    /* no output packets */
+#define IP_VS_CONN_F_INACTIVE         0x0100    /* not established */
+#define IP_VS_CONN_F_OUT_SEQ          0x0200    /* must do output seq adjust */
+#define IP_VS_CONN_F_IN_SEQ           0x0400    /* must do input seq adjust */
+#define IP_VS_CONN_F_SEQ_MASK         0x0600    /* in/out sequence mask */
+#define IP_VS_CONN_F_NO_CPORT         0x0800    /* no client port set yet */
+
+static const value_string connection_type_strings[] = {
+	{IP_VS_CONN_F_MASQ,	 "Masquerade"},
+	{IP_VS_CONN_F_LOCALNODE, "Local Node"},
+	{IP_VS_CONN_F_TUNNEL,	 "Tunnel"},
+	{IP_VS_CONN_F_DROUTE,	 "Direct Routing"},
+	{0x00, NULL},
+};
+
+
+static int
+dissect_ipvs_syncd(tvbuff_t *tvb, packet_info *pinfo, proto_tree *parent_tree, void* data _U_)
+{
+	proto_tree *tree;
+	proto_item *item;
+	int         offset = 0;
+	guint8      cnt    = 0;
+	guint8      version = 0;
+	int         conn   = 0;
+
+	item = proto_tree_add_item(parent_tree, proto_ipvs_syncd, tvb, offset, -1, ENC_NA);
+	tree = proto_item_add_subtree(item, ett_ipvs_syncd);
+
+
+	col_set_str(pinfo->cinfo, COL_PROTOCOL, "IPVS");
+	col_clear(pinfo->cinfo, COL_INFO);
+
+	cnt = tvb_get_guint8(tvb, offset);
+	if(cnt == 0) { //Version 1 (or after...) first byte is reserved
+		proto_tree_add_item(tree, hf_resv, tvb, offset, 1, ENC_NA);
+		col_set_str(pinfo->cinfo, COL_INFO, "v1");
+	} else {
+		proto_tree_add_item(tree, hf_conn_count, tvb, offset, 1, ENC_BIG_ENDIAN);
+		col_set_str(pinfo->cinfo, COL_INFO, "v0");
+	}
+	offset += 1;
+
+	proto_tree_add_item(tree, hf_syncid, tvb, offset, 1, ENC_BIG_ENDIAN);
+	offset += 1;
+
+	proto_tree_add_item(tree, hf_size, tvb, offset, 2, ENC_BIG_ENDIAN);
+	offset += 2;
+
+	if(cnt == 0) { //Version 1 (or after...)
+		cnt = tvb_get_guint8(tvb, offset);
+		proto_tree_add_item(tree, hf_conn_count, tvb, offset, 1, ENC_BIG_ENDIAN);
+		offset += 1;
+
+		version = tvb_get_guint8(tvb, offset);
+		proto_tree_add_item(tree, hf_version, tvb, offset, 1, ENC_BIG_ENDIAN);
+		offset += 1;
+
+		proto_tree_add_item(tree, hf_resv, tvb, offset, 2, ENC_NA);
+		offset += 2;
+	}
+	col_append_fstr(pinfo->cinfo, COL_INFO, " %u Connection(s)", cnt);
+
+	for (conn = 0; conn < cnt; conn++)
+	{
+		if(version) {
+
+			proto_tree *ctree;
+			guint8 type;
+			guint16 size;
+
+			ctree = proto_tree_add_subtree_format(tree, tvb, offset, 36, ett_conn, NULL,
+							      "Connection #%d", conn+1);
+
+			type = tvb_get_guint8(tvb, offset);
+			proto_tree_add_item(ctree, hf_type, tvb, offset, 1, ENC_BIG_ENDIAN);
+			offset += 1;
+
+			proto_tree_add_item(ctree, hf_proto, tvb, offset, 1, ENC_BIG_ENDIAN);
+			offset += 1;
+
+			size = (tvb_get_ntohs(tvb, offset) & 0x1FFF);
+			proto_item_set_len(ctree, size);
+			proto_tree_add_item(ctree, hf_ver, tvb, offset, 2, ENC_BIG_ENDIAN);
+			proto_tree_add_item(ctree, hf_size_v1, tvb, offset, 2, ENC_BIG_ENDIAN);
+			offset += 2;
+
+			proto_tree_add_item(ctree, hf_flags_v1, tvb, offset, 4, ENC_BIG_ENDIAN);
+			offset += 4;
+
+			proto_tree_add_item(ctree, hf_state, tvb, offset, 2, ENC_BIG_ENDIAN);
+			offset += 2;
+
+			proto_tree_add_item(ctree, hf_cport, tvb, offset, 2, ENC_BIG_ENDIAN);
+			offset += 2;
+
+			proto_tree_add_item(ctree, hf_vport, tvb, offset, 2, ENC_BIG_ENDIAN);
+			offset += 2;
+
+			proto_tree_add_item(ctree, hf_dport, tvb, offset, 2, ENC_BIG_ENDIAN);
+			offset += 2;
+
+			proto_tree_add_item(ctree, hf_fwmark, tvb, offset, 4, ENC_BIG_ENDIAN);
+			offset += 4;
+
+			proto_tree_add_item(ctree, hf_timeout, tvb, offset, 4, ENC_BIG_ENDIAN);
+			offset += 4;
+
+			if(type == 0){ /* IPv4 */
+
+				proto_tree_add_item(ctree, hf_caddr, tvb, offset, 4, ENC_BIG_ENDIAN);
+				offset += 4;
+
+				proto_tree_add_item(ctree, hf_vaddr, tvb, offset, 4, ENC_BIG_ENDIAN);
+				offset += 4;
+
+				proto_tree_add_item(ctree, hf_daddr, tvb, offset, 4, ENC_BIG_ENDIAN);
+				offset += 4;
+			} else { /* IPv6 */
+
+				proto_tree_add_item(ctree, hf_caddr6, tvb, offset, 16, ENC_NA);
+				offset += 16;
+
+				proto_tree_add_item(ctree, hf_vaddr6, tvb, offset, 16, ENC_NA);
+				offset += 16;
+
+				proto_tree_add_item(ctree, hf_daddr6, tvb, offset, 16, ENC_NA);
+				offset += 16;
+			}
+
+		} else {
+
+			proto_tree *ctree;
+			proto_tree *ftree, *fi;
+			guint16 flags;
+
+			ctree = proto_tree_add_subtree_format(tree, tvb, offset, 24, ett_conn, NULL,
+							      "Connection #%d", conn+1);
+
+			proto_tree_add_item(ctree, hf_resv, tvb, offset, 1, ENC_NA);
+			offset += 1;
+
+			proto_tree_add_item(ctree, hf_proto, tvb, offset, 1, ENC_BIG_ENDIAN);
+			offset += 1;
+
+			proto_tree_add_item(ctree, hf_cport, tvb, offset, 2, ENC_BIG_ENDIAN);
+			offset += 2;
+
+			proto_tree_add_item(ctree, hf_vport, tvb, offset, 2, ENC_BIG_ENDIAN);
+			offset += 2;
+
+			proto_tree_add_item(ctree, hf_dport, tvb, offset, 2, ENC_BIG_ENDIAN);
+			offset += 2;
+
+			proto_tree_add_item(ctree, hf_caddr, tvb, offset, 4, ENC_BIG_ENDIAN);
+			offset += 4;
+
+			proto_tree_add_item(ctree, hf_vaddr, tvb, offset, 4, ENC_BIG_ENDIAN);
+			offset += 4;
+
+			proto_tree_add_item(ctree, hf_daddr, tvb, offset, 4, ENC_BIG_ENDIAN);
+			offset += 4;
+
+			flags = tvb_get_ntohs(tvb, offset);
+			fi = proto_tree_add_item(ctree, hf_flags, tvb, offset, 2, ENC_BIG_ENDIAN);
+			ftree = proto_item_add_subtree(fi, ett_flags);
+			proto_tree_add_item(ftree, hf_flags_conn_type, tvb, offset, 2, ENC_BIG_ENDIAN);
+			proto_tree_add_item(ftree, hf_flags_hashed_entry, tvb, offset, 2, ENC_BIG_ENDIAN);
+			proto_tree_add_item(ftree, hf_flags_no_output_packets, tvb, offset, 2, ENC_BIG_ENDIAN);
+			proto_tree_add_item(ftree, hf_flags_conn_not_established, tvb, offset, 2, ENC_BIG_ENDIAN);
+			proto_tree_add_item(ftree, hf_flags_adjust_output_seq, tvb, offset, 2, ENC_BIG_ENDIAN);
+			proto_tree_add_item(ftree, hf_flags_adjust_input_seq, tvb, offset, 2, ENC_BIG_ENDIAN);
+			proto_tree_add_item(ftree, hf_flags_no_client_port_set, tvb, offset, 2, ENC_BIG_ENDIAN);
+
+			offset += 2;
+
+			proto_tree_add_item(ctree, hf_state, tvb, offset, 2, ENC_BIG_ENDIAN);
+			offset += 2;
+
+			/* we have full connection info */
+			if ( flags & IP_VS_CONN_F_SEQ_MASK )
+			{
+				proto_tree_add_item(ctree, hf_in_seq_init, tvb, offset, 4, ENC_BIG_ENDIAN);
+				offset += 4;
+
+				proto_tree_add_item(ctree, hf_in_seq_delta, tvb, offset, 4, ENC_BIG_ENDIAN);
+				offset += 4;
+
+				proto_tree_add_item(ctree, hf_in_seq_pdelta, tvb, offset, 4, ENC_BIG_ENDIAN);
+				offset += 4;
+
+				proto_tree_add_item(ctree, hf_out_seq_init, tvb, offset, 4, ENC_BIG_ENDIAN);
+				offset += 4;
+
+				proto_tree_add_item(ctree, hf_out_seq_delta, tvb, offset, 4, ENC_BIG_ENDIAN);
+				offset += 4;
+
+				proto_tree_add_item(ctree, hf_out_seq_pdelta, tvb, offset, 4, ENC_BIG_ENDIAN);
+				offset += 4;
+
+			}
+		}
+
+	}
+
+	return tvb_captured_length(tvb);
+}
+
+void
+proto_register_ipvs_syncd(void)
+{
+	static hf_register_info hf[] = {
+		{ &hf_conn_count,
+			{ "Connection Count", "ipvs.conncount", FT_UINT8, BASE_DEC,
+			  NULL, 0, NULL, HFILL }},
+
+		{ &hf_syncid,
+			{ "Synchronization ID", "ipvs.syncid", FT_UINT8, BASE_DEC,
+			  NULL, 0, NULL, HFILL }},
+
+		{ &hf_size,
+			{ "Size", "ipvs.size", FT_UINT16, BASE_DEC,
+			  NULL, 0, NULL, HFILL }},
+
+		{ &hf_resv,
+			{ "Reserved", "ipvs.resv", FT_BYTES, BASE_NONE,
+			  NULL, 0, NULL, HFILL }},
+
+		{ &hf_version,
+			{ "Version", "ipvs.version", FT_UINT8, BASE_DEC,
+			  NULL, 0, NULL, HFILL }},
+
+		{ &hf_proto,
+			{ "Protocol", "ipvs.proto", FT_UINT8, BASE_HEX,
+			  VALS(proto_strings), 0, NULL, HFILL }},
+
+		{ &hf_cport,
+			{ "Client Port", "ipvs.cport", FT_UINT16, BASE_DEC,
+			  NULL, 0, NULL, HFILL }},
+
+		{ &hf_vport,
+			{ "Virtual Port", "ipvs.vport", FT_UINT16, BASE_DEC,
+			  NULL, 0, NULL, HFILL }},
+
+		{ &hf_dport,
+			{ "Destination Port", "ipvs.dport", FT_UINT16, BASE_DEC,
+			  NULL, 0, NULL, HFILL }},
+
+		{ &hf_caddr,
+			{ "Client Address", "ipvs.caddr", FT_IPv4, BASE_NONE,
+			  NULL, 0, NULL, HFILL }},
+
+		{ &hf_vaddr,
+			{ "Virtual Address", "ipvs.vaddr", FT_IPv4, BASE_NONE,
+			  NULL, 0, NULL, HFILL }},
+
+		{ &hf_daddr,
+			{ "Destination Address", "ipvs.daddr", FT_IPv4, BASE_NONE,
+			  NULL, 0, NULL, HFILL }},
+
+		{ &hf_flags,
+			{ "Flags", "ipvs.flags", FT_UINT16, BASE_HEX,
+			  NULL, 0, NULL, HFILL }},
+
+		{ &hf_flags_conn_type,
+			{ "Connection Type", "ipvs.flags.conn_type", FT_UINT16, BASE_HEX,
+			  VALS(connection_type_strings), 0x0F, NULL, HFILL }},
+
+		{ &hf_flags_hashed_entry,
+			{ "Hashed Entry", "ipvs.flags.hashed_entry", FT_BOOLEAN, 16,
+			  NULL, IP_VS_CONN_F_HASHED, NULL, HFILL }},
+
+		{ &hf_flags_no_output_packets,
+			{ "No Output Packets", "ipvs.flags.no_output_packets", FT_BOOLEAN, 16,
+			  NULL, IP_VS_CONN_F_NOOUTPUT, NULL, HFILL }},
+
+		{ &hf_flags_conn_not_established,
+			{ "Connection Not Established", "ipvs.flags.conn_not_established", FT_BOOLEAN, 16,
+			  NULL, IP_VS_CONN_F_INACTIVE, NULL, HFILL }},
+
+		{ &hf_flags_adjust_output_seq,
+			{ "Adjust Output Sequence", "ipvs.flags.adjust_output_seq", FT_BOOLEAN, 16,
+			  NULL, IP_VS_CONN_F_OUT_SEQ, NULL, HFILL }},
+
+		{ &hf_flags_adjust_input_seq,
+			{ "Adjust Input Sequence", "ipvs.flags.adjust_input_seq", FT_BOOLEAN, 16,
+			  NULL, IP_VS_CONN_F_IN_SEQ, NULL, HFILL }},
+
+		{ &hf_flags_no_client_port_set,
+			{ "No Client Port Set", "ipvs.flags.no_client_port_set", FT_BOOLEAN, 16,
+			  NULL, IP_VS_CONN_F_NO_CPORT, NULL, HFILL }},
+
+		{ &hf_state,
+			{ "State", "ipvs.state", FT_UINT16, BASE_HEX,
+			  VALS(state_strings), 0, NULL, HFILL }},
+
+		{ &hf_in_seq_init,
+			{ "Input Sequence (Initial)", "ipvs.in_seq.initial", FT_UINT32,
+				BASE_HEX, NULL, 0, NULL, HFILL }},
+
+		{ &hf_in_seq_delta,
+			{ "Input Sequence (Delta)", "ipvs.in_seq.delta", FT_UINT32,
+				BASE_HEX, NULL, 0, NULL, HFILL }},
+
+		{ &hf_in_seq_pdelta,
+			{ "Input Sequence (Previous Delta)", "ipvs.in_seq.pdelta", FT_UINT32,
+				BASE_HEX, NULL, 0, NULL, HFILL }},
+
+		{ &hf_out_seq_init,
+			{ "Output Sequence (Initial)", "ipvs.out_seq.initial", FT_UINT32,
+				BASE_HEX, NULL, 0, NULL, HFILL }},
+
+		{ &hf_out_seq_delta,
+			{ "Output Sequence (Delta)", "ipvs.out_seq.delta", FT_UINT32,
+				BASE_HEX, NULL, 0, NULL, HFILL }},
+
+		{ &hf_out_seq_pdelta,
+			{ "Output Sequence (Previous Delta)", "ipvs.out_seq.pdelta", FT_UINT32,
+				BASE_HEX, NULL, 0, NULL, HFILL }},
+
+		/* v1 payload */
+
+		{ &hf_type,
+			{ "Type", "ipvs.type", FT_UINT8, BASE_DEC,
+			  VALS(type_strings), 0, NULL, HFILL }},
+
+		{ &hf_ver,
+			{ "Version", "ipvs.ver", FT_UINT16, BASE_DEC,
+			  NULL, 0xE000, NULL, HFILL }},
+
+		{ &hf_size_v1,
+			{ "Size", "ipvs.size.v1", FT_UINT16, BASE_DEC,
+			  NULL, 0x1FFF, NULL, HFILL }},
+
+		{ &hf_flags_v1,
+			{ "Flags", "ipvs.flags.v1", FT_UINT32, BASE_HEX,
+			  NULL, 0, NULL, HFILL }},
+
+		{ &hf_fwmark,
+			{ "FWmark", "ipvs.fwmark", FT_UINT32, BASE_HEX,
+			  NULL, 0, NULL, HFILL }},
+
+		{ &hf_timeout,
+			{ "Timeout", "ipvs.timeout", FT_UINT32, BASE_DEC,
+			  NULL, 0, NULL, HFILL }},
+
+		{ &hf_caddr6,
+			{ "Client Address", "ipvs.caddr6", FT_IPv6, BASE_NONE,
+			  NULL, 0, NULL, HFILL }},
+
+		{ &hf_vaddr6,
+			{ "Virtual Address", "ipvs.vaddr6", FT_IPv6, BASE_NONE,
+			  NULL, 0, NULL, HFILL }},
+
+		{ &hf_daddr6,
+			{ "Destination Address", "ipvs.daddr6", FT_IPv6, BASE_NONE,
+			  NULL, 0, NULL, HFILL }},
+
+	};
+	static gint *ett[] = {
+		&ett_ipvs_syncd,
+		&ett_conn,
+		&ett_flags,
+	};
+
+	proto_ipvs_syncd = proto_register_protocol("IP Virtual Services Sync Daemon", "IPVS", "ipvs");
+	proto_register_field_array(proto_ipvs_syncd, hf, array_length(hf));
+	proto_register_subtree_array(ett, array_length(ett));
+
+	ipvs_syncd_handle = register_dissector("ipvs", dissect_ipvs_syncd, proto_ipvs_syncd);
+}
+
+void
+proto_reg_handoff_ipvs_syncd(void)
+{
+	dissector_add_uint_with_preference("udp.port", IPVS_SYNCD_PORT, ipvs_syncd_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:
+ */