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wireshark/epan/dissectors/packet-rsip.c

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/* packet-rsip.c
* Routines for Realm Specific IP (RSIP) Protocol dissection
* Brian Ginsbach <ginsbach@cray.com>
*
* Copyright (c) 2006, 2010 Cray Inc. All Rights Reserved.
*
* 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/to_str.h>
void proto_register_rsip(void);
/* Forward declaration we need below */
void proto_reg_handoff_rsip(void);
/* Initialize the protocol and registered fields */
static int proto_rsip = -1;
static int hf_rsip_version = -1;
static int hf_rsip_message_type = -1;
static int hf_rsip_message_length = -1;
static int hf_rsip_parameter_type = -1;
static int hf_rsip_parameter_length = -1;
static int hf_rsip_parameter_value = -1;
static int hf_rsip_parameter_address_type = -1;
static int hf_rsip_parameter_address_ipv4 = -1;
static int hf_rsip_parameter_address_ipv4_netmask = -1;
static int hf_rsip_parameter_address_ipv6 = -1;
static int hf_rsip_parameter_address_fqdn = -1;
static int hf_rsip_parameter_ports_number = -1;
static int hf_rsip_parameter_ports_port_number = -1;
static int hf_rsip_parameter_lease_time = -1;
static int hf_rsip_parameter_client_id = -1;
static int hf_rsip_parameter_bind_id = -1;
static int hf_rsip_parameter_tunnel_type = -1;
static int hf_rsip_parameter_method = -1;
static int hf_rsip_parameter_error = -1;
static int hf_rsip_parameter_flow_policy_local = -1;
static int hf_rsip_parameter_flow_policy_remote = -1;
static int hf_rsip_parameter_indicator = -1;
static int hf_rsip_parameter_message_counter = -1;
static int hf_rsip_parameter_vendor_specific_vendor_id = -1;
static int hf_rsip_parameter_vendor_specific_subtype = -1;
static int hf_rsip_parameter_vendor_specific_value = -1;
static int hf_rsip_parameter_spi_number = -1;
static int hf_rsip_parameter_spi = -1;
/* Initialize the subtree pointers */
static gint ett_rsip = -1;
static gint ett_rsip_param = -1;
static gint ett_rsip_param_val = -1;
#define UDP_PORT_RSIP 4555
#define TCP_PORT_RSIP 4555
/* Message Types in RFC 3103 Appendix B / RFC 3104 Appendix C style */
static const value_string msg_type_appendix_vals[] = {
{ 1, "ERROR_RESPONSE" },
{ 2, "REGISTER_REQUEST" },
{ 3, "REGISTER_RESPONSE" },
{ 4, "DE-REGISTER_REQUEST" },
{ 5, "DE-REGISTER_RESPONSE" },
{ 6, "ASSIGN_REQUEST_RSA-IP" },
{ 7, "ASSIGN_RESPONSE_RSA-IP" },
{ 8, "ASSIGN_REQUEST_RSAP-IP" },
{ 9, "ASSIGN_RESPONSE_RSAP-IP" },
{ 10, "EXTEND_REQUEST" },
{ 11, "EXTEND_RESPONSE" },
{ 12, "FREE_REQUEST" },
{ 13, "FREE_RESPONSE" },
{ 14, "QUERY_REQUEST" },
{ 15, "QUERY_RESPONSE" },
{ 16, "LISTEN_REQUEST" },
{ 17, "LISTEN_RESPONSE" },
{ 22, "ASSIGN_REQUEST_RSIPSEC" },
{ 23, "ASSIGN_RESPONSE_RSIPEC" },
{ 0, NULL }
};
static const value_string msg_type_vals[] = {
{ 1, "Error Response" },
{ 2, "Register Request" },
{ 3, "Register Response" },
{ 4, "Deregister Request" },
{ 5, "Deregister Response" },
{ 6, "Assign Request RSA-IP" },
{ 7, "Assign Response RSA-IP" },
{ 8, "Assign Request RSAP-IP" },
{ 9, "Assign Response RSAP-IP" },
{ 10, "Extend Request" },
{ 11, "Extend Response" },
{ 12, "Free Request" },
{ 13, "Free Response" },
{ 14, "Query Request" },
{ 15, "Query Response" },
{ 16, "Listen Request" },
{ 17, "Listen Response" },
{ 22, "Assign Request RSIPsec" },
{ 23, "Assign Response RSIPsec" },
{ 0, NULL }
};
static const value_string param_type_vals[] = {
{ 1, "Address" },
{ 2, "Port" },
{ 3, "Lease Time" },
{ 4, "Client ID" },
{ 5, "Bind ID" },
{ 6, "Tunnel Type" },
{ 7, "RSIP Method" },
{ 8, "Error" },
{ 9, "Flow Policy" },
{ 10, "Indicator" },
{ 11, "Message Counter" },
{ 12, "Vendor Specific" },
{ 22, "SPI" },
{ 0, NULL }
};
static const value_string addr_type_vals[] = {
{ 0, "Reserved" },
{ 1, "IPv4" },
{ 2, "IPv4 Netmask" },
{ 3, "IPv6" },
{ 4, "Fully Qualified Domain Name" },
{ 0, NULL }
};
static const value_string tunnel_type_vals[] = {
{ 1, "IP-IP Tunnel" },
{ 2, "GRE Tunnel" },
{ 3, "L2TP" },
{ 0, NULL }
};
static const value_string method_vals[] = {
{ 1, "RSA-IP" },
{ 2, "RSAP-IP" },
{ 0, NULL }
};
#if 0
/* Error Numbers in RFC 3103 Appendix A / RFC 3104 Appendix B style */
static const value_string error_number_appendix_vals[] = {
{ 101, "UNKNOWN_ERROR" },
{ 102, "USE_TCP" },
{ 103, "FLOW_POLICY_VIOLATION" },
{ 104, "INTERNAL_SERVER_ERROR" },
{ 105, "MESSAGE_COUNTER_REQUIRED" },
{ 106, "UNSUPPORTED_RSIP_VERSION" },
{ 201, "MISSING_PARAM" },
{ 202, "DUPLICATE_PARAM" },
{ 203, "EXTRA_PARAM" },
{ 204, "ILLEGAL_PARAM" },
{ 205, "BAD_PARAM" },
{ 206, "ILLEGAL_MESSAGE" },
{ 207, "BAD_MESSAGE" },
{ 208, "UNSUPPORTED_MESSAGE" },
{ 301, "REGISTER_FIRST" },
{ 302, "ALREADY_REGISTERED" },
{ 303, "ALREADY_UNREGISTERED" },
{ 304, "REGISTRATION_DENIED" },
{ 305, "BAD_CLIENT_ID" },
{ 306, "BAD_BIND_ID" },
{ 307, "BAD_TUNNEL_TYPE" },
{ 308, "LOCAL_ADDR_UNAVAILABLE" },
{ 309, "LOCAL_ADDRPORT_UNAVAILABLE" },
{ 310, "LOCAL_ADDR_INUSE" },
{ 311, "LOCAL_ADDRPORT_INUSE" },
{ 312, "LOCAL_ADDR_UNALlOWED" },
{ 313, "LOCAL_ADDRPORT_UNALLOWED" },
{ 314, "REMOTE_ADDR_UNALLOWED" },
{ 315, "REMOTE_ADDRPORT_UNALLOWED" },
{ 400, "IPSEC_UNALLOWED" },
{ 401, "IPSEC_SPI_UNAVAILABLE" },
{ 402, "IPSEC_SPI_INUSE" },
{ 0, NULL }
};
#endif
static const value_string error_number_vals[] = {
{ 101, "Unknown Error" },
{ 102, "Use TCP" },
{ 103, "Flow Policy Violation" },
{ 104, "Internal Server Error" },
{ 105, "Message Counter Required" },
{ 106, "Unsupported RSIP Version" },
{ 201, "Missing Parameter" },
{ 202, "Duplicate Parameter" },
{ 203, "Extra Parameter" },
{ 204, "Illegal Parameter" },
{ 205, "Bad Parameter" },
{ 206, "Illegal Message" },
{ 207, "Bad Message" },
{ 208, "Unsupported Message" },
{ 301, "Register First" },
{ 302, "Already Registered" },
{ 303, "Already Unregistered" },
{ 304, "Registration Denied" },
{ 305, "Bad Client ID" },
{ 306, "Bad Bind ID" },
{ 307, "Bad Tunnel Type" },
{ 308, "Local Address Unavailable" },
{ 309, "Local Address Port Unavailable" },
{ 310, "Local Address Inuse" },
{ 311, "Local Address Port Inuse" },
{ 312, "Local Address Unallowed" },
{ 313, "Local Address Port Unallowed" },
{ 314, "Remote Address Unallowed" },
{ 315, "Remote Address Port Unallowed" },
{ 400, "IPsec Unallowed" },
{ 401, "IPsec SPI Unavailable" },
{ 402, "IPsec SPI Inuse" },
{ 0, NULL }
};
static const value_string lcl_flow_policy_vals[] = {
{ 1, "Macro Flows" },
{ 2, "Micro Flows " },
{ 0, NULL }
};
static const value_string rmt_flow_policy_vals[] = {
{ 1, "Macro Flows" },
{ 2, "Micro Flows" },
{ 3, "No Policy" },
{ 0, NULL }
};
/* Code to actually dissect the packets */
static int
rsip_parameter(tvbuff_t *tvb, proto_tree *rsip_tree, int off, int eoff)
{
int consumed, i, paramleft;
guint8 addrtype, flowpolicy, method, number, paramtype, tuntype;
guint16 error, ind, paramlen, portnum;
guint32 bid, cid, leasetm, msgc;
proto_tree *p_tree, *v_tree;
proto_item *pti, *vti;
/* XXX */
if (off >= eoff)
return 0;
paramtype = tvb_get_guint8(tvb, off);
paramlen = tvb_get_ntohs(tvb, off + 1);
p_tree = proto_tree_add_subtree(rsip_tree, tvb, off, 3 + paramlen,
ett_rsip_param, &pti,
val_to_str(paramtype, param_type_vals, "Unknown (%d)"));
proto_tree_add_item(p_tree, hf_rsip_parameter_type, tvb,
off, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(p_tree, hf_rsip_parameter_length, tvb,
off + 1, 2, ENC_BIG_ENDIAN);
consumed = 3;
if (paramlen == 0)
return consumed;
vti = proto_tree_add_item(p_tree, hf_rsip_parameter_value,
tvb, off + 3, paramlen, ENC_NA);
v_tree = proto_item_add_subtree(vti, ett_rsip_param_val);
switch (paramtype) {
case 1: /* Address */
proto_tree_add_item(v_tree, hf_rsip_parameter_address_type,
tvb, off + 3, 1, ENC_BIG_ENDIAN);
addrtype = tvb_get_guint8(tvb, off + 3);
switch (addrtype) {
case 0: /* Reserved */
break;
case 1: /* IPv4 */
if (paramlen - 1 > 0) {
proto_tree_add_item(v_tree,
hf_rsip_parameter_address_ipv4, tvb,
off + 4, paramlen - 1, ENC_BIG_ENDIAN);
proto_item_append_text(pti, ": %s",
tvb_ip_to_str(wmem_packet_scope(), tvb, off + 4));
} else
proto_item_append_text(pti,
": Any IPv4 Address");
break;
case 2: /* IPv4 netmask */
if (paramlen - 1 > 0) {
proto_tree_add_item(v_tree,
hf_rsip_parameter_address_ipv4_netmask,
tvb, off + 4, paramlen - 1, ENC_BIG_ENDIAN);
proto_item_append_text(pti, "(netmask): %s",
tvb_ip_to_str(wmem_packet_scope(), tvb, off + 4));
} else
proto_item_append_text(pti,
": Any IPv4 Netmask");
break;
case 3: /* IPv6 */
if (paramlen - 1 > 0) {
proto_tree_add_item(v_tree,
hf_rsip_parameter_address_ipv6, tvb,
off + 4, paramlen - 1, ENC_NA);
proto_item_append_text(pti, ": %s",
tvb_ip6_to_str(wmem_packet_scope(), tvb, off + 4));
} else
proto_item_append_text(pti,
": Any IPv6 Address");
break;
case 4: /* FQDN */
if (paramlen - 1 > 0) {
proto_tree_add_item(v_tree,
hf_rsip_parameter_address_fqdn, tvb,
off + 4, paramlen - 1, ENC_ASCII);
proto_item_append_text(pti, ": %s",
tvb_format_text(wmem_packet_scope(), tvb, off + 4, paramlen - 1));
} else
proto_item_append_text(pti,
": Any Fully Qualified Domain Name");
break;
default:
proto_item_append_text(pti, ": Unknown Address Type");
break;
}
break;
case 2: /* Ports */
proto_tree_add_item(v_tree, hf_rsip_parameter_ports_number,
tvb, off + 3, 1, ENC_BIG_ENDIAN);
number = tvb_get_guint8(tvb, off + 3);
if (paramlen == 1) {
switch (number) {
case 0:
proto_item_append_text(pti, ": Unspecified");
break;
case 1:
proto_item_append_text(pti, ": Any port");
break;
default:
proto_item_append_text(pti, ": Any %d ports",
number);
break;
}
} else {
portnum = tvb_get_ntohs(tvb, off + 4);
if (number == 1) {
proto_tree_add_item(v_tree,
hf_rsip_parameter_ports_port_number,
tvb, off + 4, 2, ENC_BIG_ENDIAN);
} else {
paramleft = paramlen - 1;
if (paramleft == 2) {
proto_tree_add_uint_format_value(v_tree,
hf_rsip_parameter_ports_port_number,
tvb, off + 4, 2, portnum, "%d - %d",
portnum, portnum + number);
proto_item_append_text(pti,
": %d - %d", portnum,
portnum + number);
} else {
for (i = off + 4;
paramleft > 0;
i += 2, paramleft -= 2)
proto_tree_add_item(v_tree,
hf_rsip_parameter_ports_port_number,
tvb, i, 2, ENC_BIG_ENDIAN);
proto_item_append_text(pti,
": List of %d Ports", number);
}
}
}
break;
case 3: /* Lease Time */
/* XXX if paramlen != 4 we've got a protocol violation */
proto_tree_add_item(v_tree, hf_rsip_parameter_lease_time,
tvb, off + 3, paramlen, ENC_BIG_ENDIAN);
leasetm = tvb_get_ntohl(tvb, off + 3);
proto_item_append_text(pti, ": %d seconds", leasetm);
break;
case 4: /* Client ID */
/* XXX if paramlen != 4 we've got a protocol violation */
proto_tree_add_item(v_tree, hf_rsip_parameter_client_id,
tvb, off + 3, paramlen, ENC_BIG_ENDIAN);
cid = tvb_get_ntohl(tvb, off + 3);
proto_item_append_text(pti, ": %d", cid);
break;
case 5: /* Bind ID */
/* XXX if paramlen != 4 we've got a protocol violation */
proto_tree_add_item(v_tree, hf_rsip_parameter_bind_id,
tvb, off + 3, paramlen, ENC_BIG_ENDIAN);
bid = tvb_get_ntohl(tvb, off + 3);
proto_item_append_text(pti, ": %d", bid);
break;
case 6: /* Tunnel Type */
/* XXX if paramlen != 1 we've got a protocol violation */
proto_tree_add_item(v_tree, hf_rsip_parameter_tunnel_type,
tvb, off + 3, paramlen, ENC_BIG_ENDIAN);
tuntype = tvb_get_guint8(tvb, off + 3);
proto_item_append_text(pti, ": %s",
val_to_str(tuntype, tunnel_type_vals,
"Unknown Tunnel Type (%d)"));
break;
case 7: /* RSIP Method */
/* XXX if paramlen != 1 we've got a protocol violation */
proto_tree_add_item(v_tree, hf_rsip_parameter_method,
tvb, off + 3, paramlen, ENC_BIG_ENDIAN);
method = tvb_get_guint8(tvb, off + 3);
proto_item_append_text(pti, ": %s",
val_to_str(method, method_vals,
"Unknown RSIP Method (%d)"));
break;
case 8: /* Error */
/* XXX if paramlen != 2 we've got a protocol violation */
proto_tree_add_item(v_tree, hf_rsip_parameter_error,
tvb, off + 3, paramlen, ENC_BIG_ENDIAN);
error = tvb_get_ntohs(tvb, off + 3);
proto_item_append_text(pti, ": %s",
val_to_str(error, error_number_vals, "Undefined Error (%d)"));
break;
case 9: /* Flow Policy */
/* XXX if paramlen != 2 we've got a protocol violation */
proto_tree_add_item(v_tree,
hf_rsip_parameter_flow_policy_local, tvb, off + 3, 1, ENC_BIG_ENDIAN);
flowpolicy = tvb_get_guint8(tvb, off + 3);
proto_item_append_text(pti, ": %s",
val_to_str(flowpolicy, lcl_flow_policy_vals,
"Undefined Local Flow Policy (%d)"));
proto_tree_add_item(v_tree,
hf_rsip_parameter_flow_policy_remote, tvb, off + 4, 1,
ENC_BIG_ENDIAN);
flowpolicy = tvb_get_guint8(tvb, off + 4);
proto_item_append_text(pti, "/%s",
val_to_str(flowpolicy, rmt_flow_policy_vals,
"Undefined Remote Flow Policy (%d)"));
break;
case 10: /* Indicator */
/* XXX if paramlen != 2 we've got a protocol violation */
proto_tree_add_item(v_tree, hf_rsip_parameter_indicator, tvb,
off + 3, 2, ENC_BIG_ENDIAN);
ind = tvb_get_ntohs(tvb, off + 3);
proto_item_append_text(pti, ": %d", ind);
break;
case 11: /* Message Counter */
/* XXX if paramlen != 4 we've got a protocol violation */
proto_tree_add_item(v_tree, hf_rsip_parameter_message_counter,
tvb, off + 3, 4, ENC_BIG_ENDIAN);
msgc = tvb_get_ntohl(tvb, off + 3);
proto_item_append_text(pti, ": %d", msgc);
break;
case 12: /* Vendor Specific */
proto_tree_add_item(v_tree,
hf_rsip_parameter_vendor_specific_vendor_id, tvb, off + 3,
2, ENC_BIG_ENDIAN);
proto_tree_add_item(v_tree,
hf_rsip_parameter_vendor_specific_subtype, tvb, off + 5,
2, ENC_BIG_ENDIAN);
proto_tree_add_item(v_tree,
hf_rsip_parameter_vendor_specific_value, tvb, off + 9,
paramlen - 4, ENC_NA);
break;
case 22: /* SPI */
proto_tree_add_item(v_tree, hf_rsip_parameter_spi_number, tvb,
off + 3, 2, ENC_BIG_ENDIAN);
/* XXX need loop? */
proto_tree_add_item(v_tree, hf_rsip_parameter_spi, tvb,
off + 5, 4, ENC_BIG_ENDIAN);
break;
default:
break;
}
consumed += paramlen;
return consumed;
}
static int
rsip_message_error_response(tvbuff_t *tvb, proto_tree *rsip_tree,
int offset, int eoffset)
{
int consumed, offset_delta;
/*
<Error>
[Message Counter] UDP required
[Client ID]
[Bind ID]
*/
consumed = 0;
do {
offset_delta =
rsip_parameter(tvb, rsip_tree, offset, eoffset);
offset += offset_delta;
consumed += offset_delta;
} while ((offset_delta > 0) && (offset < eoffset));
return consumed;
}
static int
rsip_message_register_request(tvbuff_t *tvb, proto_tree *rsip_tree,
int offset, int eoffset)
{
int consumed, offset_delta;
/*
[Message Counter] UDP required
*/
consumed = 0;
do {
offset_delta =
rsip_parameter(tvb, rsip_tree, offset, eoffset);
offset += offset_delta;
consumed += offset_delta;
} while ((offset_delta > 0) && (offset < eoffset));
return consumed;
}
static int
rsip_message_register_response(tvbuff_t *tvb, proto_tree *rsip_tree,
int offset, int eoffset)
{
int consumed, offset_delta;
/*
<Client ID>
<Lease Time>
<Flow Policy>
[Message Counter] UDP required
[RSIP Method]...
[Tunnel Type]...
*/
consumed = 0;
do {
offset_delta =
rsip_parameter(tvb, rsip_tree, offset, eoffset);
offset += offset_delta;
consumed += offset_delta;
} while ((offset_delta > 0) && (offset < eoffset));
return consumed;
}
static int
rsip_message_deregister_request(tvbuff_t *tvb, proto_tree *rsip_tree,
int offset, int eoffset)
{
int consumed, offset_delta;
/*
<Client ID>
[Message Counter] UDP required
*/
consumed = 0;
do {
offset_delta =
rsip_parameter(tvb, rsip_tree, offset, eoffset);
offset += offset_delta;
consumed += offset_delta;
} while ((offset_delta > 0) && (offset < eoffset));
return consumed;
}
static int
rsip_message_deregister_response(tvbuff_t *tvb, proto_tree *rsip_tree,
int offset, int eoffset)
{
return rsip_message_deregister_request(tvb, rsip_tree, offset, eoffset);
}
static int
rsip_message_assign_request_rsaip(tvbuff_t *tvb, proto_tree *rsip_tree,
int offset, int eoffset)
{
int consumed, offset_delta;
/*
<Client ID>
<Address (local)>
<Address (remote)>
<Ports (remote)>
[Message Counter] UDP required
[Lease Time]
[Tunnel Type]
*/
consumed = 0;
do {
offset_delta =
rsip_parameter(tvb, rsip_tree, offset, eoffset);
offset += offset_delta;
consumed += offset_delta;
} while ((offset_delta > 0) && (offset < eoffset));
return consumed;
}
static int
rsip_message_assign_response_rsaip(tvbuff_t *tvb, proto_tree *rsip_tree,
int offset, int eoffset)
{
int consumed, offset_delta;
/*
<Client ID>
<Bind ID>
<Address (local)>
<Address (remote)>
<Ports (remote)>
<Lease Time>
<Tunnel Type>
[Message Counter] UDP required
[Address (tunnel endpoint)]
*/
consumed = 0;
do {
offset_delta =
rsip_parameter(tvb, rsip_tree, offset, eoffset);
offset += offset_delta;
consumed += offset_delta;
} while ((offset_delta > 0) && (offset < eoffset));
return consumed;
}
static int
rsip_message_assign_request_rsapip(tvbuff_t *tvb, proto_tree *rsip_tree,
int offset, int eoffset)
{
int consumed, offset_delta;
/*
<Client ID>
<Address (local)>
<Ports (local)>
<Address (remote)>
<Ports (remote)>
[Message Counter] UDP required
[Lease Time]
[Tunnel Type]
*/
consumed = 0;
do {
offset_delta =
rsip_parameter(tvb, rsip_tree, offset, eoffset);
offset += offset_delta;
consumed += offset_delta;
} while ((offset_delta > 0) && (offset < eoffset));
return consumed;
}
static int
rsip_message_assign_response_rsapip(tvbuff_t *tvb, proto_tree *rsip_tree,
int offset, int eoffset)
{
int consumed, offset_delta;
/*
<Client ID>
<Bind ID>
<Address (local)>
<Ports (local)>
<Address (remote)>
<Ports (remote)>
<Lease Time>
<Tunnel Type>
[Address (tunnel endpoint)]
[Message Counter] UDP required
*/
consumed = 0;
do {
offset_delta =
rsip_parameter(tvb, rsip_tree, offset, eoffset);
offset += offset_delta;
consumed += offset_delta;
} while ((offset_delta > 0) && (offset < eoffset));
return consumed;
}
static int
rsip_message_extend_request(tvbuff_t *tvb, proto_tree *rsip_tree,
int offset, int eoffset)
{
int consumed, offset_delta;
/*
<Client ID>
<Bind ID>
[Lease Time]
[Message Counter] UDP required
*/
consumed = 0;
do {
offset_delta =
rsip_parameter(tvb, rsip_tree, offset, eoffset);
offset += offset_delta;
consumed += offset_delta;
} while ((offset_delta > 0) && (offset < eoffset));
return consumed;
}
static int
rsip_message_extend_response(tvbuff_t *tvb, proto_tree *rsip_tree,
int offset, int eoffset)
{
int consumed, offset_delta;
/*
<Client ID>
<Bind ID>
<Lease Time>
[Message Counter] UDP required
*/
consumed = 0;
do {
offset_delta =
rsip_parameter(tvb, rsip_tree, offset, eoffset);
offset += offset_delta;
consumed += offset_delta;
} while ((offset_delta > 0) && (offset < eoffset));
return consumed;
}
static int
rsip_message_free_request(tvbuff_t *tvb, proto_tree *rsip_tree,
int offset, int eoffset)
{
int consumed, offset_delta;
/*
<Client ID>
<Bind ID>
[Message Counter] UDP required
*/
consumed = 0;
do {
offset_delta =
rsip_parameter(tvb, rsip_tree, offset, eoffset);
offset += offset_delta;
consumed += offset_delta;
} while ((offset_delta > 0) && (offset < eoffset));
return consumed;
}
static int
rsip_message_free_response(tvbuff_t *tvb, proto_tree *rsip_tree,
int offset, int eoffset)
{
int consumed, offset_delta;
/*
<Client ID>
<Bind ID>
[Message Counter] UDP required
*/
consumed = 0;
do {
offset_delta =
rsip_parameter(tvb, rsip_tree, offset, eoffset);
offset += offset_delta;
consumed += offset_delta;
} while ((offset_delta > 0) && (offset < eoffset));
return consumed;
}
static int
rsip_message_query_request(tvbuff_t *tvb, proto_tree *rsip_tree,
int offset, int eoffset)
{
int consumed, offset_delta;
/*
<Client ID>
[Message Counter] UDP required
[Address Tuple]...
[Network Tuple]...
<Address Tuple> ::= <Indicator (address)>
<Address>
<Network Tuple> ::= <Indicator (network)>
<Address (network)>
<Address (netmask)>
*/
consumed = 0;
do {
offset_delta =
rsip_parameter(tvb, rsip_tree, offset, eoffset);
offset += offset_delta;
consumed += offset_delta;
} while ((offset_delta > 0) && (offset < eoffset));
return consumed;
}
static int
rsip_message_query_response(tvbuff_t *tvb, proto_tree *rsip_tree,
int offset, int eoffset)
{
int consumed, offset_delta;
/*
<Client ID>
[Message Counter] UDP required
[Local Address Tuple]...
[Local Network Tuple]...
[Remote Address Tuple]...
[Remote Network Tuple]...
<Local Address Tuple> ::= <Indicator (local address)>
<Address>
<Local Network Tuple> ::= <Indicator (local network)>
<Address (network)>
<Address (netmask)>
<Remote Address Tuple> ::= <Indicator (remote address)>
<Address>
<Remote Network Tuple> ::= <Indicator (remote network)>
<Address (network)>
<Address (netmask)>
*/
consumed = 0;
do {
offset_delta =
rsip_parameter(tvb, rsip_tree, offset, eoffset);
offset += offset_delta;
consumed += offset_delta;
} while ((offset_delta > 0) && (offset < eoffset));
return consumed;
}
static int
rsip_message_listen_request(tvbuff_t *tvb, proto_tree *rsip_tree,
int offset, int eoffset)
{
int consumed, offset_delta;
/*
<Client ID>
<Address (local)>
<Ports (local)>
<Address (remote)>
<Ports (remote)>
[Message Counter] UDP required
[Lease Time]
[Tunnel Type]...
*/
consumed = 0;
do {
offset_delta =
rsip_parameter(tvb, rsip_tree, offset, eoffset);
offset += offset_delta;
consumed += offset_delta;
} while ((offset_delta > 0) && (offset < eoffset));
return consumed;
}
static int
rsip_message_listen_response(tvbuff_t *tvb, proto_tree *rsip_tree,
int offset, int eoffset)
{
int consumed, offset_delta;
/*
<Client ID>
<Bind ID>
<Address (local)>
<Ports (local)>
<Address (remote)>
<Ports (remote)>
<Tunnel Type>
<Lease Time>
[Address (tunnel endpoint)]
[Message Counter] UDP required
*/
consumed = 0;
do {
offset_delta =
rsip_parameter(tvb, rsip_tree, offset, eoffset);
offset += offset_delta;
consumed += offset_delta;
} while ((offset_delta > 0) && (offset < eoffset));
return consumed;
}
static int
rsip_message_assign_request_rsipsec(tvbuff_t *tvb, proto_tree *rsip_tree,
int offset, int eoffset)
{
int consumed, offset_delta;
/*
<Client ID>
<Address (local)>
<Ports (local)>
<Address (remote)>
<Ports (remote)>
[Message Counter] UDP required
[Lease Time]
[Tunnel Type]...
*/
consumed = 0;
do {
offset_delta =
rsip_parameter(tvb, rsip_tree, offset, eoffset);
offset += offset_delta;
consumed += offset_delta;
} while ((offset_delta > 0) && (offset < eoffset));
return consumed;
}
static int
rsip_message_assign_response_rsipsec(tvbuff_t *tvb, proto_tree *rsip_tree,
int offset, int eoffset)
{
int consumed, offset_delta;
/*
<Client ID>
<Bind ID>
<Address (local)>
<Ports (local)>
<Address (remote)>
<Ports (remote)>
<Tunnel Type>
<Lease Time>
[Address (tunnel endpoint)]
[Message Counter] UDP required
*/
consumed = 0;
do {
offset_delta =
rsip_parameter(tvb, rsip_tree, offset, eoffset);
offset += offset_delta;
consumed += offset_delta;
} while ((offset_delta > 0) && (offset < eoffset));
return consumed;
}
static int
dissect_rsip(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_)
{
proto_item *ti;
proto_tree *rsip_tree;
guint8 msgtype;
/*gboolean msgcnt_required;*/
int eoff;
msgtype = tvb_get_guint8(tvb, 1);
/*msgcnt_required = (pinfo->ipproto == IP_PROTO_UDP)? TRUE : FALSE;*/
col_set_str(pinfo->cinfo, COL_PROTOCOL, "RSIP");
col_add_str(pinfo->cinfo, COL_INFO,
val_to_str(msgtype, msg_type_vals,
"Unknown Message Type (0x%0x)"));
if (tree) {
ti = proto_tree_add_item(tree, proto_rsip, tvb, 0, -1, ENC_NA);
rsip_tree = proto_item_add_subtree(ti, ett_rsip);
proto_tree_add_item(rsip_tree,
hf_rsip_version, tvb, 0, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(rsip_tree,
hf_rsip_message_type, tvb, 1, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(rsip_tree,
hf_rsip_message_length, tvb, 2, 2, ENC_BIG_ENDIAN);
eoff = tvb_reported_length(tvb);
switch (msgtype) {
case 1: /* Error Response */
rsip_message_error_response(tvb, rsip_tree, 4, eoff);
break;
case 2: /* Register Request */
rsip_message_register_request(tvb, rsip_tree, 4, eoff);
break;
case 3: /* Register Response */
rsip_message_register_response(tvb, rsip_tree, 4, eoff);
break;
case 4: /* De-register Request */
rsip_message_deregister_request(tvb, rsip_tree, 4, eoff);
break;
case 5: /* De-register Response */
rsip_message_deregister_response(tvb, rsip_tree, 4, eoff);
break;
case 6: /* Assign Request RSA-IP */
rsip_message_assign_request_rsaip(tvb, rsip_tree, 4, eoff);
break;
case 7: /* Assign Response RSA-IP */
rsip_message_assign_response_rsaip(tvb, rsip_tree, 4, eoff);
break;
case 8: /* Assign Request RSAP-IP */
rsip_message_assign_request_rsapip(tvb, rsip_tree, 4, eoff);
break;
case 9: /* Assign Response RSAP-IP */
rsip_message_assign_response_rsapip(tvb, rsip_tree, 4, eoff);
break;
case 10: /* Extend Request */
rsip_message_extend_request(tvb, rsip_tree, 4, eoff);
break;
case 11: /* Extend Response */
rsip_message_extend_response(tvb, rsip_tree, 4, eoff);
break;
case 12: /* Free Request */
rsip_message_free_request(tvb, rsip_tree, 4, eoff);
break;
case 13: /* Free Response */
rsip_message_free_response(tvb, rsip_tree, 4, eoff);
break;
case 14: /* Query Request */
rsip_message_query_request(tvb, rsip_tree, 4, eoff);
break;
case 15: /* Query Response */
rsip_message_query_response(tvb, rsip_tree, 4, eoff);
break;
case 16: /* Listen Request */
rsip_message_listen_request(tvb, rsip_tree, 4, eoff);
break;
case 17: /* Listen Response */
rsip_message_listen_response(tvb, rsip_tree, 4, eoff);
break;
case 22: /* Assign Request RSIPsec */
rsip_message_assign_request_rsipsec(tvb, rsip_tree, 4, eoff);
break;
case 23: /* Assign Response RSIPsec */
rsip_message_assign_response_rsipsec(tvb, rsip_tree, 4, eoff);
break;
}
}
return tvb_captured_length(tvb);
}
/* Register the protocol with Wireshark */
void
proto_register_rsip(void)
{
static hf_register_info hf[] = {
{ &hf_rsip_version,
{ "Protocol version", "rsip.version",
FT_UINT8, BASE_DEC, NULL, 0x0,
NULL, HFILL }
},
{ &hf_rsip_message_type,
{ "Message type", "rsip.message_type",
FT_UINT8, BASE_DEC, VALS(msg_type_appendix_vals), 0x0,
NULL, HFILL }
},
{ &hf_rsip_message_length,
{ "Message length", "rsip.message_length",
FT_UINT16, BASE_DEC, NULL, 0x0,
NULL, HFILL }
},
{ &hf_rsip_parameter_type,
{ "Type", "rsip.parameter.type",
FT_UINT8, BASE_DEC, VALS(param_type_vals), 0x0,
NULL, HFILL }
},
{ &hf_rsip_parameter_length,
{ "Length", "rsip.parameter.length",
FT_UINT8, BASE_DEC, NULL, 0x0,
NULL, HFILL }
},
{ &hf_rsip_parameter_value,
{ "Value", "rsip.parameter.value",
FT_BYTES, BASE_NONE, NULL, 0x0,
NULL, HFILL }},
{ &hf_rsip_parameter_address_type,
{ "Address type", "rsip.parameter.address_type",
FT_UINT8, BASE_DEC, VALS(addr_type_vals), 0x0,
NULL, HFILL }
},
{ &hf_rsip_parameter_address_ipv4,
{ "IPv4 Address", "rsip.parameter.address",
FT_IPv4, BASE_NONE, NULL, 0x0,
NULL, HFILL }
},
{ &hf_rsip_parameter_address_ipv4_netmask,
{ "IPv4 Netmask", "rsip.parameter.netmask",
FT_IPv4, BASE_NETMASK, NULL, 0x0,
NULL, HFILL }
},
{ &hf_rsip_parameter_address_ipv6,
{ "IPv6 Address", "rsip.parameter.address.ipv6",
FT_IPv6, BASE_NONE, NULL, 0x0,
NULL, HFILL }
},
{ &hf_rsip_parameter_address_fqdn,
{ "Fully Qualified Domain Name", "rsip.parameter.fqdn",
FT_STRING, BASE_NONE, NULL, 0x0,
NULL, HFILL }
},
{ &hf_rsip_parameter_ports_number,
{ "Number", "rsip.parameter.ports.number",
FT_UINT8, BASE_DEC, NULL, 0x0,
NULL, HFILL }
},
{ &hf_rsip_parameter_ports_port_number,
{ "Port", "rsip.parameter.ports.port_number",
FT_UINT16, BASE_DEC, NULL, 0x0,
NULL, HFILL }
},
{ &hf_rsip_parameter_lease_time,
{ "Lease time", "rsip.parameter.lease_time",
FT_UINT32, BASE_DEC, NULL, 0x0,
NULL, HFILL }
},
{ &hf_rsip_parameter_client_id,
{ "Client ID", "rsip.parameter.client_id",
FT_UINT32, BASE_DEC, NULL, 0x0,
NULL, HFILL }
},
{ &hf_rsip_parameter_bind_id,
{ "Bind ID", "rsip.parameter.bind_id",
FT_UINT32, BASE_DEC, NULL, 0x0,
NULL, HFILL }
},
{ &hf_rsip_parameter_tunnel_type,
{ "Tunnel type", "rsip.parameter.tunnel_type",
FT_UINT8, BASE_DEC, VALS(tunnel_type_vals), 0x0,
NULL, HFILL }
},
{ &hf_rsip_parameter_method,
{ "Method", "rsip.method_param.method",
FT_UINT8, BASE_DEC, VALS(method_vals), 0x0,
NULL, HFILL }
},
{ &hf_rsip_parameter_error,
{ "Error", "rsip.parameter.error",
FT_UINT16, BASE_DEC, VALS(error_number_vals), 0x0,
NULL, HFILL }
},
{ &hf_rsip_parameter_flow_policy_local,
{ "Local Flow Policy", "rsip.parameter.local_flow_policy",
FT_UINT8, BASE_DEC, VALS(lcl_flow_policy_vals), 0x0,
NULL, HFILL }
},
{ &hf_rsip_parameter_flow_policy_remote,
{ "Remote Flow Policy", "rsip.parameter.remote_flow_policy",
FT_UINT8, BASE_DEC, VALS(rmt_flow_policy_vals), 0x0,
NULL, HFILL }
},
{ &hf_rsip_parameter_indicator,
{ "Value", "rsip.parameter.indicator",
FT_UINT16, BASE_HEX, NULL, 0x0,
NULL, HFILL }
},
{ &hf_rsip_parameter_message_counter,
{ "Counter", "rsip.parameter.message_counter",
FT_UINT32, BASE_DEC, NULL, 0x0,
NULL, HFILL }
},
{ &hf_rsip_parameter_vendor_specific_vendor_id,
{ "Vendor ID", "rsip.parameter.vendor_specific.vendor_id",
FT_UINT16, BASE_DEC, NULL, 0x0,
NULL, HFILL }
},
{ &hf_rsip_parameter_vendor_specific_subtype,
{ "Subtype", "rsip.parameter.vendor_specific.subtype",
FT_UINT16, BASE_DEC, NULL, 0x0,
NULL, HFILL }
},
{ &hf_rsip_parameter_vendor_specific_value,
{ "Value", "rsip.parameter.vendor_specific.value",
FT_NONE, BASE_NONE, NULL, 0x0,
NULL, HFILL }
},
{ &hf_rsip_parameter_spi_number,
{ "Number", "rsip.parameter.spi_number",
FT_UINT16, BASE_DEC, NULL, 0x0,
NULL, HFILL }
},
{ &hf_rsip_parameter_spi,
{ "SPI", "rsip.parameter.spi",
FT_UINT32, BASE_HEX, NULL, 0x0,
NULL, HFILL }
}
};
static gint *ett[] = {
&ett_rsip,
&ett_rsip_param,
&ett_rsip_param_val
};
proto_rsip = proto_register_protocol("Realm Specific IP Protocol",
"RSIP", "rsip");
proto_register_field_array(proto_rsip, hf, array_length(hf));
proto_register_subtree_array(ett, array_length(ett));
}
void
proto_reg_handoff_rsip(void)
{
dissector_handle_t rsip_handle;
rsip_handle = create_dissector_handle(dissect_rsip, proto_rsip);
dissector_add_uint_with_preference("udp.port", UDP_PORT_RSIP, rsip_handle);
dissector_add_uint_with_preference("tcp.port", TCP_PORT_RSIP, rsip_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:
*/
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