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wireshark/epan/dissectors/packet-ipvs-syncd.c
Michael Mann 2eb7b05b8c Convert most UDP dissectors to use "auto" preferences. 
Similar to the "tcp.port" changes in I99604f95d426ad345f4b494598d94178b886eb67,
convert dissectors that use "udp.port".

More cleanup done on dissectors that use both TCP and UDP dissector
tables, so that less preference callbacks exist.

Change-Id: If07be9b9e850c244336a7069599cd554ce312dd3
Reviewed-on: https://code.wireshark.org/review/18120
Petri-Dish: Michael Mann <mmann78@netscape.net>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Michael Mann <mmann78@netscape.net>
2016-10-13 02:51:18 +00:00

351 lines
11 KiB
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/* 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
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "config.h"
#include <epan/packet.h>
void proto_register_ipvs_syncd(void);
void proto_reg_handoff_ipvs_syncd(void);
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_resv8 = -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;
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},
};
/*
* 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;
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);
proto_tree_add_item(tree, hf_conn_count, tvb, offset, 1, ENC_BIG_ENDIAN);
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;
for (conn = 0; conn < cnt; conn++)
{
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_resv8, tvb, offset, 1, ENC_BIG_ENDIAN);
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_resv8,
{ "Reserved", "ipvs.resv8", FT_UINT8, BASE_HEX,
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,
TFS(&tfs_true_false), IP_VS_CONN_F_HASHED, NULL, HFILL }},
{ &hf_flags_no_output_packets,
{ "No Output Packets", "ipvs.flags.no_output_packets", FT_BOOLEAN, 16,
TFS(&tfs_true_false), IP_VS_CONN_F_NOOUTPUT, NULL, HFILL }},
{ &hf_flags_conn_not_established,
{ "Connection Not Established", "ipvs.flags.conn_not_established", FT_BOOLEAN, 16,
TFS(&tfs_true_false), IP_VS_CONN_F_INACTIVE, NULL, HFILL }},
{ &hf_flags_adjust_output_seq,
{ "Adjust Output Sequence", "ipvs.flags.adjust_output_seq", FT_BOOLEAN, 16,
TFS(&tfs_true_false), IP_VS_CONN_F_OUT_SEQ, NULL, HFILL }},
{ &hf_flags_adjust_input_seq,
{ "Adjust Input Sequence", "ipvs.flags.adjust_input_seq", FT_BOOLEAN, 16,
TFS(&tfs_true_false), 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,
TFS(&tfs_true_false), 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 }},
};
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));
}
void
proto_reg_handoff_ipvs_syncd(void)
{
dissector_handle_t ipvs_syncd_handle;
ipvs_syncd_handle = create_dissector_handle(dissect_ipvs_syncd, proto_ipvs_syncd);
dissector_add_uint_with_preference("udp.port", IPVS_SYNCD_PORT, ipvs_syncd_handle);
}
/*
* Editor modelines - http://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:
*/
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