diff options
| -rw-r--r-- | AUTHORS | 1 | ||||
| -rw-r--r-- | epan/Makefile.common | 3 | ||||
| -rw-r--r-- | packet-ipvs-syncd.c | 353 |
3 files changed, 356 insertions, 1 deletions
@@ -224,6 +224,7 @@ Nathan Neulinger <nneul[AT]umr.edu> { releases of automake and autoconf) Additional cipher suite names for SSL SEBEK - Kernel read() data capture protocol support + Linux IPVS Synchronization Daemon support } Tomislav Vujec <tvujec[AT]carnet.hr> { diff --git a/epan/Makefile.common b/epan/Makefile.common index 7c90a4690f..ff94ab44c5 100644 --- a/epan/Makefile.common +++ b/epan/Makefile.common @@ -3,7 +3,7 @@ # a) common to both files and # b) portable between both files # -# $Id: Makefile.common,v 1.9 2004/03/19 07:54:58 guy Exp $ +# $Id: Makefile.common,v 1.10 2004/03/21 17:13:01 nneul Exp $ # # Ethereal - Network traffic analyzer # By Gerald Combs <gerald@ethereal.com> @@ -236,6 +236,7 @@ DISSECTOR_SRC = \ ../packet-ipsec-udp.c \ ../packet-ipsec.c \ ../packet-ipv6.c \ + ../packet-ipvs-syncd.c \ ../packet-ipx.c \ ../packet-ipxwan.c \ ../packet-irc.c \ diff --git a/packet-ipvs-syncd.c b/packet-ipvs-syncd.c new file mode 100644 index 0000000000..063289dd06 --- /dev/null +++ b/packet-ipvs-syncd.c @@ -0,0 +1,353 @@ +/* packet-ipvs-syncd.c 2001 Ronnie Sahlberg <See AUTHORS for email> + * Routines for IGMP packet disassembly + * + * $Id: packet-ipvs-syncd.c,v 1.1 2004/03/21 17:13:01 nneul Exp $ + * + * Ethereal - Network traffic analyzer + * By Gerald Combs <gerald@ethereal.com> + * 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + */ + +#ifdef HAVE_CONFIG_H +# include "config.h" +#endif + +#include <stdio.h> +#include <string.h> +#include <glib.h> + +#ifdef NEED_SNPRINTF_H +# include "snprintf.h" +#endif + +#include <epan/packet.h> +#include "ipproto.h" +#include "in_cksum.h" + +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_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 + +static const value_string proto_strings[] = { + {0x06, "UDP"}, + {0x11, "TCP"}, + {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 void +dissect_ipvs_syncd(tvbuff_t *tvb, packet_info *pinfo, proto_tree *parent_tree) +{ + 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, FALSE); + tree = proto_item_add_subtree(item, ett_ipvs_syncd); + + + if (check_col(pinfo->cinfo, COL_PROTOCOL)) { + col_set_str(pinfo->cinfo, COL_PROTOCOL, "IPVS"); + } + if (check_col(pinfo->cinfo, COL_INFO)) { + col_clear(pinfo->cinfo, COL_INFO); + } + + cnt = tvb_get_guint8(tvb, offset); + proto_tree_add_item(tree, hf_conn_count, tvb, offset, 1, FALSE); + offset += 1; + + proto_tree_add_item(tree, hf_syncid, tvb, offset, 1, FALSE); + offset += 1; + + proto_tree_add_item(tree, hf_size, tvb, offset, 2, TRUE); + offset += 2; + + for (conn = 0; conn < cnt; conn++) + { + proto_tree *ctree, *ti; + proto_tree *ftree, *fi; + guint16 flags; + + ti = proto_tree_add_text(tree, tvb, offset, 24, "Connection #%d", conn+1); + ctree = proto_item_add_subtree(ti, ett_conn); + + proto_tree_add_item(ctree, hf_resv8, tvb, offset, 1, FALSE); + offset += 1; + + proto_tree_add_item(ctree, hf_proto, tvb, offset, 1, FALSE); + offset += 1; + + proto_tree_add_item(ctree, hf_cport, tvb, offset, 2, FALSE); + offset += 2; + + proto_tree_add_item(ctree, hf_vport, tvb, offset, 2, FALSE); + offset += 2; + + proto_tree_add_item(ctree, hf_dport, tvb, offset, 2, FALSE); + offset += 2; + + proto_tree_add_item(ctree, hf_caddr, tvb, offset, 4, FALSE); + offset += 4; + + proto_tree_add_item(ctree, hf_vaddr, tvb, offset, 4, FALSE); + offset += 4; + + proto_tree_add_item(ctree, hf_daddr, tvb, offset, 4, FALSE); + offset += 4; + + flags = tvb_get_ntohs(tvb, offset); + fi = proto_tree_add_item(ctree, hf_flags, tvb, offset, 2, FALSE); + ftree = proto_item_add_subtree(fi, ett_flags); + + if ( (flags & 0x0F) == IP_VS_CONN_F_MASQ ) + { + proto_tree_add_text(ftree, tvb, offset+1, 1, "Connection Type: Masquerade"); + } + else if ( (flags & 0x0F) == IP_VS_CONN_F_LOCALNODE ) + { + proto_tree_add_text(ftree, tvb, offset+1, 1, "Connection Type: Local Node"); + } + else if ( (flags & 0x0F) == IP_VS_CONN_F_TUNNEL ) + { + proto_tree_add_text(ftree, tvb, offset+1, 1, "Connection Type: Tunnel"); + } + else if ( (flags & 0x0F) == IP_VS_CONN_F_DROUTE ) + { + proto_tree_add_text(ftree, tvb, offset+1, 1, "Connection Type: Direct Routing"); + } + else + { + proto_tree_add_text(ftree, tvb, offset+1, 1, "Connection Type: Unknown (%d)", + flags & IP_VS_CONN_F_FWD_MASK); + } + + if ( flags & IP_VS_CONN_F_HASHED ) + { + proto_tree_add_text(ftree, tvb, offset+1, 1, "Hashed Entry"); + } + + if ( flags & IP_VS_CONN_F_NOOUTPUT ) + { + proto_tree_add_text(ftree, tvb, offset+1, 1, "No Output Packets"); + } + + if ( flags & IP_VS_CONN_F_INACTIVE ) + { + proto_tree_add_text(ftree, tvb, offset, 1, "Connection Not Established"); + } + + if ( flags & IP_VS_CONN_F_OUT_SEQ ) + { + proto_tree_add_text(ftree, tvb, offset, 1, "Adjust Output Sequence"); + } + + if ( flags & IP_VS_CONN_F_IN_SEQ ) + { + proto_tree_add_text(ftree, tvb, offset, 1, "Adjust Input Sequence"); + } + + if ( flags & IP_VS_CONN_F_NO_CPORT ) + { + proto_tree_add_text(ftree, tvb, offset, 1, "No Client Port Set"); + } + + offset += 2; + + proto_tree_add_item(ctree, hf_state, tvb, offset, 2, FALSE); + 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, FALSE); + offset += 4; + + proto_tree_add_item(ctree, hf_in_seq_delta, tvb, offset, 4, FALSE); + offset += 4; + + proto_tree_add_item(ctree, hf_in_seq_pdelta, tvb, offset, 4, FALSE); + offset += 4; + + proto_tree_add_item(ctree, hf_out_seq_init, tvb, offset, 4, FALSE); + offset += 4; + + proto_tree_add_item(ctree, hf_out_seq_delta, tvb, offset, 4, FALSE); + offset += 4; + + proto_tree_add_item(ctree, hf_out_seq_pdelta, tvb, offset, 4, FALSE); + offset += 4; + } + + } +} + +void +proto_register_ipvs_syncd(void) +{ + static hf_register_info hf[] = { + { &hf_conn_count, + { "Connection Count", "ipvs.conncount", FT_UINT8, BASE_DEC, + NULL, 0, "Connection Count", HFILL }}, + + { &hf_syncid, + { "Synchronization ID", "ipvs.syncid", FT_UINT8, BASE_DEC, + NULL, 0, "Syncronization ID", HFILL }}, + + { &hf_size, + { "Size", "ipvs.size", FT_UINT16, BASE_DEC, + NULL, 0, "Size", HFILL }}, + + { &hf_resv8, + { "Reserved", "ipvs.resv8", FT_UINT8, BASE_HEX, + NULL, 0, "Reserved", HFILL }}, + + { &hf_proto, + { "Protocol", "ipvs.proto", FT_UINT8, BASE_HEX, + VALS(&proto_strings), 0, "Protocol", HFILL }}, + + { &hf_cport, + { "Client Port", "ipvs.cport", FT_UINT16, BASE_DEC, + NULL, 0, "Client Port", HFILL }}, + + { &hf_vport, + { "Virtual Port", "ipvs.vport", FT_UINT16, BASE_DEC, + NULL, 0, "Virtual Port", HFILL }}, + + { &hf_dport, + { "Destination Port", "ipvs.dport", FT_UINT16, BASE_DEC, + NULL, 0, "Destination Port", HFILL }}, + + { &hf_caddr, + { "Client Address", "ipvs.caddr", FT_IPv4, BASE_HEX, + NULL, 0, "Client Address", HFILL }}, + + { &hf_vaddr, + { "Virtual Address", "ipvs.vaddr", FT_IPv4, BASE_HEX, + NULL, 0, "Virtual Address", HFILL }}, + + { &hf_daddr, + { "Destination Address", "ipvs.daddr", FT_IPv4, BASE_HEX, + NULL, 0, "Destination Address", HFILL }}, + + { &hf_flags, + { "Flags", "ipvs.flags", FT_UINT16, BASE_HEX, + NULL, 0, "Flags", HFILL }}, + + { &hf_state, + { "State", "ipvs.state", FT_UINT16, BASE_HEX, + VALS(&state_strings), 0, "State", HFILL }}, + + { &hf_in_seq_init, + { "Input Sequence (Initial)", "ipvs.in_seq.initial", FT_UINT32, + BASE_HEX, NULL, 0, "Input Sequence (Initial)", HFILL }}, + + { &hf_in_seq_delta, + { "Input Sequence (Delta)", "ipvs.in_seq.delta", FT_UINT32, + BASE_HEX, NULL, 0, "Input Sequence (Delta)", HFILL }}, + + { &hf_in_seq_pdelta, + { "Input Sequence (Previous Delta)", "ipvs.in_seq.pdelta", FT_UINT32, + BASE_HEX, NULL, 0, "Input Sequence (Previous Delta)", HFILL }}, + + { &hf_out_seq_init, + { "Output Sequence (Initial)", "ipvs.out_seq.initial", FT_UINT32, + BASE_HEX, NULL, 0, "Output Sequence (Initial)", HFILL }}, + + { &hf_out_seq_delta, + { "Output Sequence (Delta)", "ipvs.out_seq.delta", FT_UINT32, + BASE_HEX, NULL, 0, "Output Sequence (Delta)", HFILL }}, + + { &hf_out_seq_pdelta, + { "Output Sequence (Previous Delta)", "ipvs.out_seq.pdelta", FT_UINT32, + BASE_HEX, NULL, 0, "Output Sequence (Previous Delta)", 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("udp.port", IPVS_SYNCD_PORT, ipvs_syncd_handle); +} |