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packet-rsvp.c
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/* packet-rsvp.c
* Routines for RSVP packet disassembly
*
* (c) Copyright Ashok Narayanan <ashokn@cisco.com>
*
* $Id: packet-rsvp.c,v 1.5 1999/08/12 05:19:05 gram Exp $
*
* Ethereal - Network traffic analyzer
* By Gerald Combs <gerald@zing.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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
/*
* NOTES
*
* This module defines routines to disassemble RSVP packets, as defined in
* RFC 2205. All objects from RC2205 are supported, in IPv4 and IPv6 mode.
* In addition, the Integrated Services traffic specification objects
* defined in RFC2210 are also supported.
*
* IPv6 support is not completely tested
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <stdio.h>
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#include <stdlib.h>
#include <string.h>
#ifdef HAVE_SYS_TYPES_H
# include <sys/types.h>
#endif
#ifdef HAVE_NETINET_IN_H
# include <netinet/in.h>
#endif
#ifdef NEED_SNPRINTF_H
# ifdef HAVE_STDARG_H
# include <stdarg.h>
# else
# include <varargs.h>
# endif
# include "snprintf.h"
#endif
#include <glib.h>
#include "packet.h"
#include "packet-ipv6.h"
#include "packet-rsvp.h"
static int proto_rsvp = -1;
/* Stuff for IEEE float handling */
#define IEEE_NUMBER_WIDTH 32 /* bits in number */
#define IEEE_EXP_WIDTH 8 /* bits in exponent */
#define IEEE_MANTISSA_WIDTH 23 /* IEEE_NUMBER_WIDTH - 1 - IEEE_EXP_WIDTH */
#define IEEE_SIGN_MASK 0x80000000
#define IEEE_EXPONENT_MASK 0x7F800000
#define IEEE_MANTISSA_MASK 0x007FFFFF
#define IEEE_INFINITY IEEE_EXPONENT_MASK
#define IEEE_IMPLIED_BIT (1 << IEEE_MANTISSA_WIDTH)
#define IEEE_INFINITE ((1 << IEEE_EXP_WIDTH) - 1)
#define IEEE_BIAS ((1 << (IEEE_EXP_WIDTH - 1)) - 1)
#define MINUS_INFINITY (signed)0x80000000L
#define PLUS_INFINITY 0x7FFFFFFF
static inline int ieee_float_is_zero (long number)
{
return(!(number & ~IEEE_SIGN_MASK));
}
/*
* simple conversion: ieee floating point to long
*/
static long ieee_to_long (const void *p)
{
long number;
long sign;
long exponent;
long mantissa;
number = pntohl(p);
sign = number & IEEE_SIGN_MASK;
exponent = number & IEEE_EXPONENT_MASK;
mantissa = number & IEEE_MANTISSA_MASK;
if (ieee_float_is_zero(number)) {
/* number is zero, unnormalized, or not-a-number */
return 0;
}
if (IEEE_INFINITY == exponent) {
/* number is positive or negative infinity, or a special value */
return (sign? MINUS_INFINITY: PLUS_INFINITY);
}
exponent = (exponent >> IEEE_MANTISSA_WIDTH) - IEEE_BIAS;
if (exponent < 0) {
/* number is between zero and one */
return 0;
}
mantissa |= IEEE_IMPLIED_BIT;
if (exponent <= IEEE_MANTISSA_WIDTH)
mantissa >>= IEEE_MANTISSA_WIDTH - exponent;
else
mantissa <<= exponent - IEEE_MANTISSA_WIDTH;
if (sign)
return -mantissa;
else
return mantissa;
}
void
dissect_rsvp(const u_char *pd, int offset, frame_data *fd, proto_tree *tree)
{
proto_tree *rsvp_tree = NULL, *ti;
proto_tree *rsvp_header_tree;
proto_tree *rsvp_object_tree;
char *packet_type, *object_type;
rsvp_header *hdr;
rsvp_object *obj;
int i, len, mylen;
int msg_length;
int obj_length;
int offset2;
hdr = (rsvp_header *)&pd[offset];
packet_type = match_strval(hdr->message_type, message_type_vals);
if (check_col(fd, COL_PROTOCOL))
col_add_str(fd, COL_PROTOCOL, "RSVP");
if (check_col(fd, COL_INFO)) {
if (packet_type != NULL)
col_add_str(fd, COL_INFO, packet_type);
else
col_add_fstr(fd, COL_INFO, "Unknown (%d)", hdr->message_type);
}
if (tree) {
msg_length = pntohs(pd+offset+6);
ti = proto_tree_add_item(tree, proto_rsvp, offset, msg_length, NULL);
rsvp_tree = proto_item_add_subtree(ti, ETT_RSVP);
ti = proto_tree_add_text(rsvp_tree, offset,
sizeof(rsvp_header), "RSVP Header");
rsvp_header_tree = proto_item_add_subtree(ti, ETT_RSVP_HDR);
proto_tree_add_text(rsvp_header_tree, offset, 1, "RSVP Version: %d",
(hdr->ver_flags & 0xf0)>>4);
proto_tree_add_text(rsvp_header_tree, offset, 1, "Flags: %02X",
hdr->ver_flags & 0xf);
proto_tree_add_text(rsvp_header_tree, offset+1, 1, "Message Type: %d - %s",
hdr->message_type,
packet_type?packet_type:"Unknown");
proto_tree_add_text(rsvp_header_tree, offset + 2 , 2, "Message Checksum");
proto_tree_add_text(rsvp_header_tree, offset + 4 , 1, "Sending TTL: %d",
hdr->sending_ttl);
proto_tree_add_text(rsvp_header_tree, offset + 6 , 2, "Message length: %d",
msg_length);
offset += sizeof(rsvp_header);
len = 0;
while (len + sizeof(rsvp_header) < msg_length) {
obj = (rsvp_object *)&pd[offset];
obj_length = pntohs(pd+offset);
if (offset + obj_length > fd->cap_len) {
proto_tree_add_text(rsvp_tree, offset, 1,
"Further data not captured");
break;
}
object_type = match_strval(obj->class, rsvp_class_vals);
if (!object_type) object_type = "Unknown";
ti = proto_tree_add_text(rsvp_tree, offset,
obj_length,
"%s (%d)", object_type, obj->class);
offset2 = offset + sizeof(rsvp_object);
switch(obj->class) {
case RSVP_CLASS_SESSION :
rsvp_object_tree = proto_item_add_subtree(ti, ETT_RSVP_SESSION);
proto_tree_add_text(rsvp_object_tree, offset, 2, "Length: %d",
obj_length);
proto_tree_add_text(rsvp_object_tree, offset+2, 1,
"Class number: %d - %s",
obj->class, object_type);
switch(obj->type) {
case 1: {
rsvp_session_ipv4 *sess = (rsvp_session_ipv4 *)obj;
proto_tree_add_text(rsvp_object_tree, offset+3, 1,
"C-type: 1 - IPv4");
proto_tree_add_text(rsvp_object_tree, offset2, 4,
"Destination address: %s",
ip_to_str((guint8 *) &(sess->destination)));
proto_tree_add_text(rsvp_object_tree, offset2+4, 1,
"Protocol: %d", sess->protocol);
proto_tree_add_text(rsvp_object_tree, offset2+5, 1,
"Flags: %d", sess->flags);
proto_tree_add_text(rsvp_object_tree, offset2+6, 2,
"Destination port: %d",
pntohs(pd+offset2+6));
break;
}
case 2: {
rsvp_session_ipv6 *sess = (rsvp_session_ipv6 *)obj;
proto_tree_add_text(rsvp_object_tree, offset+3, 1,
"C-type: 2 - IPv6");
proto_tree_add_text(rsvp_object_tree, offset2, 4,
"Destination address: %s",
ip6_to_str(&(sess->destination)));
proto_tree_add_text(rsvp_object_tree, offset2+16, 1,
"Protocol: %d", sess->protocol);
proto_tree_add_text(rsvp_object_tree, offset2+17, 1,
"Flags: %d", sess->flags);
proto_tree_add_text(rsvp_object_tree, offset2+18, 2,
"Destination port: %d",
pntohs(pd+offset2+18));
break;
}
default: {
proto_tree_add_text(rsvp_object_tree, offset+3, 1,
"C-type: Unknown (%d)",
obj->type);
i = obj_length - sizeof(rsvp_object);
proto_tree_add_text(rsvp_object_tree, offset2, i,
"Data (%d bytes)", i);
}
}
break;
case RSVP_CLASS_HOP :
rsvp_object_tree = proto_item_add_subtree(ti, ETT_RSVP_HOP);
proto_tree_add_text(rsvp_object_tree, offset, 2, "Length: %d",
obj_length);
proto_tree_add_text(rsvp_object_tree, offset+2, 1,
"Class number: %d - %s",
obj->class, object_type);
switch(obj->type) {
case 1: {
rsvp_hop_ipv4 *hop = (rsvp_hop_ipv4 *)obj;
proto_tree_add_text(rsvp_object_tree, offset+3, 1,
"C-type: 1 - IPv4");
proto_tree_add_text(rsvp_object_tree, offset2, 4,
"Neighbor address: %s",
ip_to_str((guint8 *) &(hop->neighbor)));
proto_tree_add_text(rsvp_object_tree, offset2+4, 4,
"Logical interface: %0x",
pntohl(pd+offset2+4));
break;
}
case 2: {
rsvp_hop_ipv6 *hop = (rsvp_hop_ipv6 *)obj;
proto_tree_add_text(rsvp_object_tree, offset+3, 1,
"C-type: 2 - IPv6");
proto_tree_add_text(rsvp_object_tree, offset2, 4,
"Neighbor address: %s",
ip6_to_str(&(hop->neighbor)));
proto_tree_add_text(rsvp_object_tree, offset2+16, 4,
"Logical interface: %0x",
pntohl(pd+offset2+16));
break;
}
default: {
proto_tree_add_text(rsvp_object_tree, offset+3, 1,
"C-type: Unknown (%d)",
obj->type);
i = obj_length - sizeof(rsvp_object);
proto_tree_add_text(rsvp_object_tree, offset2, i,
"Data (%d bytes)", i);
}
}
break;
case RSVP_CLASS_TIME_VALUES :
rsvp_object_tree = proto_item_add_subtree(ti, ETT_RSVP_TIME_VALUES);
proto_tree_add_text(rsvp_object_tree, offset, 2, "Length: %d",
obj_length);
proto_tree_add_text(rsvp_object_tree, offset+2, 1,
"Class number: %d - %s",
obj->class, object_type);
switch(obj->type) {
case 1: {
proto_tree_add_text(rsvp_object_tree, offset+3, 1,
"C-type: 1");
proto_tree_add_text(rsvp_object_tree, offset2, 4,
"Refresh interval: %u ms (%u seconds)",
pntohl(pd+offset2),
pntohl(pd+offset2)/1000);
break;
}
default: {
proto_tree_add_text(rsvp_object_tree, offset+3, 1,
"C-type: Unknown (%d)",
obj->type);
i = obj_length - sizeof(rsvp_object);
proto_tree_add_text(rsvp_object_tree, offset2, i,
"Data (%d bytes)", i);
break;
}
}
break;
case RSVP_CLASS_ERROR :
rsvp_object_tree = proto_item_add_subtree(ti, ETT_RSVP_ERROR);
proto_tree_add_text(rsvp_object_tree, offset, 2, "Length: %d",
obj_length);
proto_tree_add_text(rsvp_object_tree, offset+2, 1,
"Class number: %d - %s",
obj->class, object_type);
switch(obj->type) {
case 1: {
rsvp_error_ipv4 *err = (rsvp_error_ipv4 *)obj;
char *err_str = match_strval(err->error_code, rsvp_error_vals);
if (!err_str) err_str = "Unknown";
proto_tree_add_text(rsvp_object_tree, offset+3, 1,
"C-type: 1 - IPv4");
proto_tree_add_text(rsvp_object_tree, offset2, 4,
"Error node: %s",
ip_to_str((guint8 *) &(err->error_node)));
proto_tree_add_text(rsvp_object_tree, offset2+4, 1,
"Flags: %02x", err->flags);
proto_tree_add_text(rsvp_object_tree, offset2+5, 1,
"Error code: %d - %s", err->error_code,
err_str);
proto_tree_add_text(rsvp_object_tree, offset2+6, 2,
"Error value: %d", pntohs(pd+offset2+6));
break;
}
case 2: {
rsvp_error_ipv6 *err = (rsvp_error_ipv6 *)obj;
char *err_str = match_strval(err->error_code, rsvp_error_vals);
if (!err_str) err_str = "Unknown";
proto_tree_add_text(rsvp_object_tree, offset+3, 1,
"C-type: 2 - IPv6");
proto_tree_add_text(rsvp_object_tree, offset2, 4,
"Error node: %s",
ip6_to_str(&(err->error_node)));
proto_tree_add_text(rsvp_object_tree, offset2+16, 1,
"Flags: %02x", err->flags);
proto_tree_add_text(rsvp_object_tree, offset2+17, 1,
"Error code: %d - %s", err->error_code,
err_str);
proto_tree_add_text(rsvp_object_tree, offset2+18, 2,
"Error value: %d", pntohs(pd+offset2+18));
break;
}
default: {
proto_tree_add_text(rsvp_object_tree, offset+3, 1,
"C-type: Unknown (%d)",
obj->type);
i = obj_length - sizeof(rsvp_object);
proto_tree_add_text(rsvp_object_tree, offset2, i,
"Data (%d bytes)", i);
}
}
break;
case RSVP_CLASS_SCOPE :
mylen = obj_length;
rsvp_object_tree = proto_item_add_subtree(ti, ETT_RSVP_SCOPE);
proto_tree_add_text(rsvp_object_tree, offset, 2, "Length: %d",
obj_length);
proto_tree_add_text(rsvp_object_tree, offset+2, 1,
"Class number: %d - %s",
obj->class, object_type);
switch(obj->type) {
case 1: {
unsigned long ip;
proto_tree_add_text(rsvp_object_tree, offset+3, 1,
"C-type: 1 - IPv4");
while (mylen > sizeof(rsvp_object)) {
ip = pntohl(pd+offset2);
proto_tree_add_text(rsvp_object_tree, offset2, 4,
"IPv4 Address: %s",
ip_to_str((guint8 *) &ip));
offset2 += 4;
mylen -= 4;
}
break;
}
case 2: {
struct e_in6_addr *ip;
proto_tree_add_text(rsvp_object_tree, offset+3, 1,
"C-type: 2 - IPv6");
while (mylen>sizeof(rsvp_object)) {
ip = (struct e_in6_addr *)pd+offset2;
proto_tree_add_text(rsvp_object_tree, offset2, 16,
"IPv6 Address: %s",
ip6_to_str(ip));
offset2 += 16;
mylen -= 16;
}
break;
}
default: {
proto_tree_add_text(rsvp_object_tree, offset+3, 1,
"C-type: Unknown (%d)",
obj->type);
i = obj_length - sizeof(rsvp_object);
proto_tree_add_text(rsvp_object_tree, offset2, i,
"Data (%d bytes)", i);
}
}
break;
case RSVP_CLASS_STYLE :
rsvp_object_tree = proto_item_add_subtree(ti, ETT_RSVP_STYLE);
proto_tree_add_text(rsvp_object_tree, offset, 2, "Length: %d",
obj_length);
proto_tree_add_text(rsvp_object_tree, offset+2, 1,
"Class number: %d - %s",
obj->class, object_type);
switch(obj->type) {
case 1: {
unsigned long ip = pntohl(pd+offset2);
char *style_str = match_strval(ip, style_vals);
if (!style_str) style_str = "Unknown";
proto_tree_add_text(rsvp_object_tree, offset+3, 1,
"C-type: 1");
proto_tree_add_text(rsvp_object_tree, offset2+5, 1,
"Style: %ld - %s", ip, style_str);
break;
}
default: {
proto_tree_add_text(rsvp_object_tree, offset+3, 1,
"C-type: Unknown (%d)",
obj->type);
i = obj_length - sizeof(rsvp_object);
proto_tree_add_text(rsvp_object_tree, offset2, i,
"Data (%d bytes)", i);
break;
}
}
break;
case RSVP_CLASS_CONFIRM :
rsvp_object_tree = proto_item_add_subtree(ti, ETT_RSVP_CONFIRM);
proto_tree_add_text(rsvp_object_tree, offset, 2, "Length: %d",
obj_length);
proto_tree_add_text(rsvp_object_tree, offset+2, 1,
"Class number: %d - %s",
obj->class, object_type);
switch(obj->type) {
case 1: {
rsvp_confirm_ipv4 *confirm = (rsvp_confirm_ipv4 *)obj;
proto_tree_add_text(rsvp_object_tree, offset+3, 1,
"C-type: 1 - IPv4");
proto_tree_add_text(rsvp_object_tree, offset2, 4,
"Receiver address: %s",
ip_to_str((guint8 *) &(confirm->receiver)));
break;
}
case 2: {
rsvp_confirm_ipv6 *confirm = (rsvp_confirm_ipv6 *)obj;
proto_tree_add_text(rsvp_object_tree, offset+3, 1,
"C-type: 2 - IPv6");
proto_tree_add_text(rsvp_object_tree, offset2, 16,
"Receiver address: %s",
ip6_to_str(&(confirm->receiver)));
break;
}
default: {
proto_tree_add_text(rsvp_object_tree, offset+3, 1,
"C-type: Unknown (%d)",
obj->type);
i = obj_length - sizeof(rsvp_object);
proto_tree_add_text(rsvp_object_tree, offset2, i,
"Data (%d bytes)", i);
}
}
break;
case RSVP_CLASS_SENDER_TEMPLATE :
rsvp_object_tree = proto_item_add_subtree(ti, ETT_RSVP_SENDER_TEMPLATE);
proto_tree_add_text(rsvp_object_tree, offset, 2, "Length: %d",
obj_length);
proto_tree_add_text(rsvp_object_tree, offset+2, 1,
"Class number: %d - %s",
obj->class, object_type);
goto common_template;
case RSVP_CLASS_FILTER_SPEC :
rsvp_object_tree = proto_item_add_subtree(ti, ETT_RSVP_FILTER_SPEC);
proto_tree_add_text(rsvp_object_tree, offset, 2, "Length: %d",
obj_length);
proto_tree_add_text(rsvp_object_tree, offset+2, 1,
"Class number: %d - %s",
obj->class, object_type);
common_template:
switch(obj->type) {
case 1: {
rsvp_template_ipv4 *tem = (rsvp_template_ipv4 *)obj;
proto_tree_add_text(rsvp_object_tree, offset+3, 1,
"C-type: 1 - IPv4");
proto_tree_add_text(rsvp_object_tree, offset2, 4,
"Source address: %s",
ip_to_str((guint8 *) &(tem->source)));
proto_tree_add_text(rsvp_object_tree, offset2+6, 2,
"Source port: %d", pntohs(pd+offset2+6));
break;
}
case 2: {
rsvp_template_ipv6 *tem = (rsvp_template_ipv6 *)obj;
proto_tree_add_text(rsvp_object_tree, offset+3, 1,
"C-type: 2 - IPv6");
proto_tree_add_text(rsvp_object_tree, offset2, 16,
"Source address: %s",
ip6_to_str(&(tem->source)));
proto_tree_add_text(rsvp_object_tree, offset2+18, 2,
"Source port: %d", pntohs(pd+offset2+18));
break;
}
default: {
proto_tree_add_text(rsvp_object_tree, offset+3, 1,
"C-type: Unknown (%d)",
obj->type);
i = obj_length - sizeof(rsvp_object);
proto_tree_add_text(rsvp_object_tree, offset2, i,
"Data (%d bytes)", i);
}
}
break;
case RSVP_CLASS_SENDER_TSPEC : {
rsvp_tspec *tspec = (rsvp_tspec *)obj;
IS_tspec *ist;
QUAL_tspec *qt;
service_hdr *sh;
char *str;
mylen = obj_length;
rsvp_object_tree = proto_item_add_subtree(ti, ETT_RSVP_SENDER_TSPEC);
proto_tree_add_text(rsvp_object_tree, offset, 2, "Length: %d",
obj_length);
proto_tree_add_text(rsvp_object_tree, offset+2, 1,
"Class number: %d - %s",
obj->class, object_type);
proto_tree_add_text(rsvp_object_tree, offset2, 1,
"Message format version: %d",
tspec->version>>4);
proto_tree_add_text(rsvp_object_tree, offset2+2, 2,
"Data length: %d words, not including header",
pntohs(pd+offset2+2));
mylen -=4;
offset2 +=4;
while (mylen > 4) {
sh = (service_hdr *)(pd+offset2);
str = match_strval(sh->service_num, qos_vals);
if (!str) str = "Unknown";
proto_tree_add_text(rsvp_object_tree, offset2, 1,
"Service header: %d - %s",
sh->service_num, str);
proto_tree_add_text(rsvp_object_tree, offset2+2, 2,
"Length of service %d data: %d words, "
"not including header",
sh->service_num,
ntohs(sh->length));
offset2+=4; mylen -=4;
switch(sh->service_num) {
case QOS_TSPEC :
ist = (IS_tspec *)sh;
/* Token bucket TSPEC */
str = match_strval(ist->param_id, svc_vals);
if (!str) str = "Unknown";
proto_tree_add_text(rsvp_object_tree, offset2, 1,
"Parameter %d - %s",
ist->param_id, str);
proto_tree_add_text(rsvp_object_tree, offset2+1, 1,
"Parameter %d flags: %d",
ist->param_id, ist->flags_tspec);
proto_tree_add_text(rsvp_object_tree, offset2+2, 2,
"Parameter %d data length: %d words, "
"not including header",
ist->param_id,
/* pntohs(pd+offset2+10)); */
ntohs(ist->parameter_length));
proto_tree_add_text(rsvp_object_tree, offset2+4, 4,
"Token bucket rate: %ld",
ieee_to_long(pd+offset2+4));
proto_tree_add_text(rsvp_object_tree, offset2+8, 4,
"Token bucket size: %ld",
ieee_to_long(pd+offset2+8));
proto_tree_add_text(rsvp_object_tree, offset2+12, 4,
"Peak data rate: %ld",
ieee_to_long(pd+offset2+12));
proto_tree_add_text(rsvp_object_tree, offset2+16, 4,
"Minimum policed unit: %d",
pntohl(pd+offset2+16));
proto_tree_add_text(rsvp_object_tree, offset2+20, 4,
"Maximum policed unit: %d",
pntohl(pd+offset2+20));
break;
case QOS_QUALITATIVE :
qt = (QUAL_tspec *)sh;
/* Token bucket TSPEC */
str = match_strval(qt->param_id, svc_vals);
if (!str) str = "Unknown";
proto_tree_add_text(rsvp_object_tree, offset2, 1,
"Parameter %d - %s",
qt->param_id, str);
proto_tree_add_text(rsvp_object_tree, offset2+1, 1,
"Parameter %d flags: %d",
qt->param_id, qt->flags_tspec);
proto_tree_add_text(rsvp_object_tree, offset2+2, 2,
"Parameter %d data length: %d words, "
"not including header",
qt->param_id,
/* pntohs(pd+offset2+10)); */
ntohs(qt->parameter_length));
proto_tree_add_text(rsvp_object_tree, offset2+4, 4,
"Maximum policed unit: %d",
pntohl(pd+offset2+4));
break;
}
offset2 += ntohs(sh->length)*4;
mylen -= ntohs(sh->length)*4;
}
break;
}
case RSVP_CLASS_FLOWSPEC : {
rsvp_flowspec *flowspec = (rsvp_flowspec *)obj;
IS_flowspec *isf;
QUAL_flowspec *qf;
service_hdr *sh;
int mylen;
char *str;
mylen = obj_length;
rsvp_object_tree = proto_item_add_subtree(ti, ETT_RSVP_FLOWSPEC);
proto_tree_add_text(rsvp_object_tree, offset, 2, "Length: %d",
obj_length);
proto_tree_add_text(rsvp_object_tree, offset+2, 1,
"Class number: %d - %s",
obj->class, object_type);
proto_tree_add_text(rsvp_object_tree, offset2, 1,
"Message format version: %d",
flowspec->version>>4);
proto_tree_add_text(rsvp_object_tree, offset2+2, 2,
"Data length: %d words, not including header",
pntohs(pd+offset2+2));
mylen -=4;
offset2+=4;
while (mylen > 4) {
sh = (service_hdr *)(pd+offset2);
str = match_strval(sh->service_num, intsrv_services_str);
if (!str) str = "Unknown";
proto_tree_add_text(rsvp_object_tree, offset2, 1,
"Service header: %d - %s",
sh->service_num, str);
proto_tree_add_text(rsvp_object_tree, offset2+2, 2,
"Length of service %d data: %d words, "
"not including header",
sh->service_num,
ntohs(sh->length));
offset2+=4; mylen -=4;
switch(sh->service_num) {
case QOS_CONTROLLED_LOAD :
case QOS_GUARANTEED :
/* Treat both these the same for now */
isf = (IS_flowspec *)sh;
str = match_strval(isf->tspec.param_id, svc_vals);
if (!str) str = "Unknown";
proto_tree_add_text(rsvp_object_tree, offset2, 1,
"Parameter %d - %s",
isf->tspec.param_id, str);
proto_tree_add_text(rsvp_object_tree, offset2+1, 1,
"Parameter %d flags: %d",
isf->tspec.param_id, isf->tspec.flags_tspec);
proto_tree_add_text(rsvp_object_tree, offset2+2, 2,
"Parameter %d data length: %d words, "
"not including header",
isf->tspec.param_id,
ntohs(isf->tspec.parameter_length));
proto_tree_add_text(rsvp_object_tree, offset2+4, 4,
"Token bucket rate: %ld",
ieee_to_long(pd+offset2+4));
proto_tree_add_text(rsvp_object_tree, offset2+8, 4,
"Token bucket size: %ld",
ieee_to_long(pd+offset2+8));
proto_tree_add_text(rsvp_object_tree, offset2+12, 4,
"Peak data rate: %ld",
ieee_to_long(pd+offset2+12));
proto_tree_add_text(rsvp_object_tree, offset2+16, 4,
"Minimum policed unit: %d",
pntohl(pd+offset2+16));
proto_tree_add_text(rsvp_object_tree, offset2+20, 4,
"Maximum policed unit: %d",
pntohl(pd+offset2+20));
if (sh->service_num!=QOS_GUARANTEED)
break;
/* Guaranteed-rate RSpec */
str = match_strval(isf->rspec.param_id, svc_vals);
if (!str) str="Unknown";
proto_tree_add_text(rsvp_object_tree, offset2+24, 1,
"Parameter %d - %s",
isf->rspec.param_id, str);
proto_tree_add_text(rsvp_object_tree, offset2+25, 1,
"Parameter %d flags: %d",
isf->rspec.param_id, isf->rspec.flags_rspec);
proto_tree_add_text(rsvp_object_tree, offset2+26, 2,
"Parameter %d data length: %d words, "
"not including header",
isf->rspec.param_id,
ntohs(isf->rspec.param2_length));
proto_tree_add_text(rsvp_object_tree, offset2+28, 4,
"Rate: %ld",
ieee_to_long(pd+offset2+28));
proto_tree_add_text(rsvp_object_tree, offset2+32, 4,
"Slack term: %d",
pntohl(pd+offset2+32));
break;
case QOS_QUALITATIVE :
qf = (QUAL_flowspec *)sh;
str = match_strval(qf->param_id, svc_vals);
if (!str) str = "Unknown";
proto_tree_add_text(rsvp_object_tree, offset2, 1,
"Parameter %d - %s",
qf->param_id, str);
proto_tree_add_text(rsvp_object_tree, offset2+1, 1,
"Parameter %d flags: %d",
qf->param_id, qf->flags_tspec);
proto_tree_add_text(rsvp_object_tree, offset2+2, 2,
"Parameter %d data length: %d words, "
"not including header",
qf->param_id,
ntohs(qf->parameter_length));
proto_tree_add_text(rsvp_object_tree, offset2+4, 4,
"Maximum policed unit: %ld",
pntohl(pd+offset2+4));
break;
}
offset2 += ntohs(sh->length)*4;
mylen -= ntohs(sh->length)*4;
}
break;
}
case RSVP_CLASS_ADSPEC : {
proto_tree *adspec_tree;
service_hdr *shdr;
param_hdr *phdr;
char *str;
int tree_num;
mylen = obj_length;
rsvp_object_tree = proto_item_add_subtree(ti, ETT_RSVP_ADSPEC);
proto_tree_add_text(rsvp_object_tree, offset, 2, "Length: %d",
obj_length);
proto_tree_add_text(rsvp_object_tree, offset+2, 1,
"Class number: %d - %s",
obj->class, object_type);
proto_tree_add_text(rsvp_object_tree, offset2, 1,
"Message format version: %d",
(*((unsigned char *)pd+offset2))>>4);
proto_tree_add_text(rsvp_object_tree, offset2+2, 2,
"Data length: %d words, not including header",
pntohs(pd+offset2+2));
offset2+=4;
tree_num=ETT_RSVP_ADSPEC_SUBTREE1;
mylen -= 4;
while (mylen > 4) {
shdr = (service_hdr *)(pd + offset2);
str = match_strval(shdr->service_num, intsrv_services_str);
ti = proto_tree_add_text(rsvp_object_tree, offset2,
(pntohs(&shdr->length)+1)<<2,
str?str:"Unknown");
adspec_tree = proto_item_add_subtree(ti, tree_num++);
proto_tree_add_text(adspec_tree, offset2, 1,
"Service header %d - %s",
shdr->service_num, str);
proto_tree_add_text(adspec_tree, offset2+1, 1,
(shdr->break_bit&0x80)?
"Break bit set":"Break bit not set");
proto_tree_add_text(adspec_tree, offset2+2, 2,
"Data length: %d words, not including header",
pntohs(&shdr->length));
offset2+=4; i=(pntohs(&shdr->length)+1)<<2; mylen-=4;
while (i>4) {
phdr = (param_hdr *)(pd + offset2);
str = match_strval(phdr->id, adspec_params);
if (str) {
switch(phdr->id) {
case 4:
case 8:
case 10:
case 133:
case 134:
case 135:
case 136:
/* 32-bit unsigned integer */
proto_tree_add_text(adspec_tree, offset2,
(pntohs(&phdr->length)+1)<<2,
"%s - %lu (type %d, length %d)",
str,
(unsigned long)pntohl(&phdr->dataval),
phdr->id, pntohs(&phdr->length));
break;
case 6:
/* IEEE float */
proto_tree_add_text(adspec_tree, offset2,
(pntohs(&phdr->length)+1)<<2,
"%s - %lu (type %d, length %d)",
str,
ieee_to_long(&phdr->dataval),
phdr->id, pntohs(&phdr->length));
break;
default:
proto_tree_add_text(adspec_tree, offset2,
(pntohs(&phdr->length)+1)<<2,
"%s (type %d, length %d)",
str,
phdr->id, pntohs(&phdr->length));
}
} else {
proto_tree_add_text(adspec_tree, offset2,
(pntohs(&phdr->length)+1)<<2,
"Unknown (type %d, length %d)",
phdr->id, pntohs(&phdr->length));
}
offset2+=(pntohs(&phdr->length)+1)<<2;
i-=(pntohs(&phdr->length)+1)<<2;
mylen-=(pntohs(&phdr->length)+1)<<2;
}
}
break;
}
case RSVP_CLASS_INTEGRITY :
rsvp_object_tree = proto_item_add_subtree(ti, ETT_RSVP_INTEGRITY);
proto_tree_add_text(rsvp_object_tree, offset, 2, "Length: %d",
obj_length);
proto_tree_add_text(rsvp_object_tree, offset+2, 1,
"Class number: %d - %s",
obj->class, object_type);
goto default_class;
case RSVP_CLASS_POLICY :
rsvp_object_tree = proto_item_add_subtree(ti, ETT_RSVP_POLICY);
proto_tree_add_text(rsvp_object_tree, offset, 2, "Length: %d",
obj_length);
proto_tree_add_text(rsvp_object_tree, offset+2, 1,
"Class number: %d - %s",
obj->class, object_type);
goto default_class;
default :
rsvp_object_tree = proto_item_add_subtree(ti, ETT_RSVP_UNKNOWN_CLASS);
proto_tree_add_text(rsvp_object_tree, offset, 2, "Length: %d",
obj_length);
proto_tree_add_text(rsvp_object_tree, offset+2, 1,
"Class number: %d - %s",
obj->class, object_type);
default_class:
i = obj_length - sizeof(rsvp_object);
proto_tree_add_text(rsvp_object_tree, offset2, i,
"Data (%d bytes)", i);
break;
case RSVP_CLASS_NULL :
break;
}
offset += obj_length;
len += obj_length;
}
}
}
void
proto_register_rsvp(void)
{
/* static hf_register_info hf[] = {
{ &variable,
{ "Name", "rsvp.abbreviation", TYPE, VALS_POINTER }},
};*/
proto_rsvp = proto_register_protocol("Resource ReserVation Protocol (RSVP)", "rsvp");
/* proto_register_field_array(proto_rsvp, hf, array_length(hf));*/
}