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freebsd/usr.sbin/pim6sd/pimd.h
Kris Kennaway 5bca844f39 Sync with latest KAME code. 
Obtained from:	KAME
2000-07-06 01:48:08 +00:00

527 lines
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/*
* Copyright (c) 1998 by the University of Southern California.
* All rights reserved.
*
* Permission to use, copy, modify, and distribute this software and
* its documentation in source and binary forms for lawful
* purposes and without fee is hereby granted, provided
* that the above copyright notice appear in all copies and that both
* the copyright notice and this permission notice appear in supporting
* documentation, and that any documentation, advertising materials,
* and other materials related to such distribution and use acknowledge
* that the software was developed by the University of Southern
* California and/or Information Sciences Institute.
* The name of the University of Southern California may not
* be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THE UNIVERSITY OF SOUTHERN CALIFORNIA DOES NOT MAKE ANY REPRESENTATIONS
* ABOUT THE SUITABILITY OF THIS SOFTWARE FOR ANY PURPOSE. THIS SOFTWARE IS
* PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES,
* INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, TITLE, AND
* NON-INFRINGEMENT.
*
* IN NO EVENT SHALL USC, OR ANY OTHER CONTRIBUTOR BE LIABLE FOR ANY
* SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES, WHETHER IN CONTRACT,
* TORT, OR OTHER FORM OF ACTION, ARISING OUT OF OR IN CONNECTION WITH,
* THE USE OR PERFORMANCE OF THIS SOFTWARE.
*
* Other copyrights might apply to parts of this software and are so
* noted when applicable.
*/
/* Questions concerning this software should be directed to
* Mickael Hoerdt (hoerdt@clarinet.u-strasbg.fr) LSIIT Strasbourg.
*
*/
/*
* This program has been derived from pim6dd.
* The pim6dd program is covered by the license in the accompanying file
* named "LICENSE.pim6dd".
*/
/*
* This program has been derived from pimd.
* The pimd program is covered by the license in the accompanying file
* named "LICENSE.pimd".
*
* $FreeBSD$
*/
#ifndef PIMD_H
#define PIMD_H
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include "defs.h"
#define PIM_PROTOCOL_VERSION 2
/* PIM protocol timers (in seconds) */
#define PIM_REGISTER_SUPPRESSION_TIMEOUT 60
#define PIM_REGISTER_PROBE_TIME 5 /* Used to send NULL_REGISTER */
#define PIM_DATA_TIMEOUT 210
#define PIM_TIMER_HELLO_PERIOD 30
#define PIM_JOIN_PRUNE_PERIOD 60
#define PIM_JOIN_PRUNE_HOLDTIME (3.5 * PIM_JOIN_PRUNE_PERIOD)
#define PIM_RANDOM_DELAY_JOIN_TIMEOUT 4.5
#define PIM_DEFAULT_CAND_RP_ADV_PERIOD 60
#define PIM_DEFAULT_BOOTSTRAP_PERIOD 60
#define PIM_BOOTSTRAP_TIMEOUT (2.5 * PIM_DEFAULT_BOOTSTRAP_PERIOD + 10)
#define PIM_TIMER_HELLO_HOLDTIME (3.5 * PIM_TIMER_HELLO_PERIOD)
#define PIM_ASSERT_TIMEOUT 180
/* Misc definitions */
#define PIM_DEFAULT_CAND_RP_PRIORITY 0 /* 0 is the highest. Don't know
* why this is the default.
* See the PS version (Mar' 97),
* pp.22 bottom of the spec.
*/
#define PIM_DEFAULT_BSR_PRIORITY 0 /* 0 is the lowest */
#define RP_DEFAULT_IPV6_HASHMASKLEN 126 /* the default group msklen used
* by the hash function to
* calculate the group-to-RP
* mapping
*/
#define SINGLE_SRC_MSK6LEN 128 /* the single source mask length */
#define SINGLE_GRP_MSK6LEN 128 /* the single group mask length */
/* TODO: change? */
#define PIM_GROUP_PREFIX_DEFAULT_MASKLEN 8 /* The default group masklen if
* omitted in the config file.
*/
/* Datarate related definitions */
/* REG_RATE is used by the RP to switch to the shortest path instead of
* decapsulating Registers.
* DATA_RATE is the threshold for the last hop router to initiate
* switching to the shortest path.
*/
/* TODO: XXX: probably no need for two different intervals.
*/
#define PIM_DEFAULT_REG_RATE 50000 /* max # of register bits/s */
#define PIM_DEFAULT_REG_RATE_INTERVAL 20 /* regrate probe interval */
#define PIM_DEFAULT_DATA_RATE 50000 /* max # of data bits/s */
#define PIM_DEFAULT_DATA_RATE_INTERVAL 20 /* datarate check interval */
#define DATA_RATE_CHECK_INTERVAL 20 /* Data rate check interval */
#define REG_RATE_CHECK_INTERVAL 20 /* PIM Reg. rate check interval*/
#define UCAST_ROUTING_CHECK_INTERVAL 20 /* Unfortunately, if the unicast
* routing changes, the kernel
* or any of the existing
* unicast routing daemons
* don't send us a signal.
* Have to ask periodically the
* kernel for any route changes.
* Default: every 20 seconds.
* Sigh.
*/
#define DEFAULT_PHY_RATE_LIMIT 0 /* default phyint rate limit */
#define DEFAULT_REG_RATE_LIMIT 0 /* default register_vif rate limit */
/**************************************************************************
* PIM Encoded-Unicast, Encoded-Group and Encoded-Source Address formats *
*************************************************************************/
/* Address families definition */
#define ADDRF_RESERVED 0
#define ADDRF_IPv4 1
#define ADDRF_IPv6 2
#define ADDRF_NSAP 3
#define ADDRF_HDLC 4
#define ADDRF_BBN1822 5
#define ADDRF_802 6
#define ADDRF_ETHERNET ADDRF_802
#define ADDRF_E163 7
#define ADDRF_E164 8
#define ADDRF_SMDS ADDRF_E164
#define ADDRF_ATM ADDRF_E164
#define ADDRF_F69 9
#define ADDRF_TELEX ADDRF_F69
#define ADDRF_X121 10
#define ADDRF_X25 ADDRF_X121
#define ADDRF_IPX 11
#define ADDRF_APPLETALK 12
#define ADDRF_DECNET_IV 13
#define ADDRF_BANYAN 14
#define ADDRF_E164_NSAP 15
/* Addresses Encoding Type (specific for each Address Family */
#define ADDRT_IPv6 0
/* Encoded-Unicast: 18 bytes long */
typedef struct pim6_encod_uni_addr_ {
u_int8 addr_family;
u_int8 encod_type;
struct in6_addr unicast_addr; /* XXX: Note the 32-bit boundary
* misalignment for the unicast
* address when placed in the
* memory. Must read it byte-by-byte!
*/
} pim6_encod_uni_addr_t;
/* XXX: sizeof(pim6_encod_uni_addr_t) does not work due to misalignment */
#define PIM6_ENCODE_UNI_ADDR_LEN 18
/* Encoded-Group */
typedef struct pim6_encod_grp_addr_ {
u_int8 addr_family;
u_int8 encod_type;
u_int8 reserved;
u_int8 masklen;
struct in6_addr mcast_addr;
} pim6_encod_grp_addr_t;
/* XXX: sizeof(pim6_encod_grp_addr_t) MAY NOT work due to an alignment problem */
#define PIM6_ENCODE_GRP_ADDR_LEN 20
/* Encoded-Source */
typedef struct pim6_encod_src_addr_ {
u_int8 addr_family;
u_int8 encod_type;
u_int8 flags;
u_int8 masklen;
struct in6_addr src_addr;
} pim6_encod_src_addr_t;
/* XXX: sizeof(pim6_encod_src_addr_t) MAY NOT work due to an alignment problem */
#define PIM6_ENCODE_SRC_ADDR_LEN 20
#define USADDR_RP_BIT 0x1
#define USADDR_WC_BIT 0x2
#define USADDR_S_BIT 0x4
/**************************************************************************
* PIM Messages formats *
*************************************************************************/
/* PIM Hello */
typedef struct pim_hello_ {
u_int16 option_type; /* Option type */
u_int16 option_length; /* Length of the Option Value field in bytes */
} pim_hello_t;
/* PIM Register */
typedef struct pim_register_ {
u_int32 reg_flags;
} pim_register_t;
/* PIM Register-Stop */
typedef struct pim_register_stop_ {
pim6_encod_grp_addr_t encod_grp;
pim6_encod_uni_addr_t encod_src; /* XXX: 18 bytes long, misaligned */
} pim_register_stop_t;
/* PIM Join/Prune: XXX: all 128-bit addresses misaligned! */
typedef struct pim_jp_header_ {
pim6_encod_uni_addr_t encod_upstream_nbr;
u_int8 reserved;
u_int8 num_groups;
u_int16 holdtime;
} pim_jp_header_t;
typedef struct pim_jp_encod_grp_ {
pim6_encod_grp_addr_t encod_grp;
u_int16 number_join_src;
u_int16 number_prune_src;
} pim_jp_encod_grp_t;
#define PIM_ACTION_NOTHING 0
#define PIM_ACTION_JOIN 1
#define PIM_ACTION_PRUNE 2
#define PIM_IIF_SOURCE 1
#define PIM_IIF_RP 2
#define PIM_ASSERT_RPT_BIT 0x80000000
/* PIM messages type */
#define PIM_HELLO 0
#define PIM_REGISTER_STOP 2
#define PIM_JOIN_PRUNE 3
#define PIM_BOOTSTRAP 4
#define PIM_ASSERT 5
#define PIM_GRAFT 6
#define PIM_GRAFT_ACK 7
#define PIM_CAND_RP_ADV 8
#define PIM_V2_HELLO PIM_HELLO
#define PIM_V2_REGISTER PIM_REGISTER
#define PIM_V2_REGISTER_STOP PIM_REGISTER_STOP
#define PIM_V2_JOIN_PRUNE PIM_JOIN_PRUNE
#define PIM_V2_BOOTSTRAP PIM_BOOTSTRAP
#define PIM_V2_ASSERT PIM_ASSERT
#define PIM_V2_GRAFT PIM_GRAFT
#define PIM_V2_GRAFT_ACK PIM_GRAFT_ACK
#define PIM_V2_CAND_RP_ADV PIM_CAND_RP_ADV
/* Vartious options from PIM messages definitions */
/* PIM_HELLO definitions */
#define PIM_MESSAGE_HELLO_HOLDTIME 1
#define PIM_MESSAGE_HELLO_HOLDTIME_LENGTH 2
#define PIM_MESSAGE_HELLO_HOLDTIME_FOREVER 0xffff
/* PIM_REGISTER definitions */
#define PIM_MESSAGE_REGISTER_BORDER_BIT 0x80000000
#define PIM_MESSAGE_REGISTER_NULL_REGISTER_BIT 0x40000000
#define MASK_TO_MASKLEN6(mask , masklen) \
do { \
register u_int32 tmp_mask; \
register u_int8 tmp_masklen = sizeof((mask)) <<3; \
int i; \
int kl; \
for(i=0;i<4;i++) \
{ \
tmp_mask=ntohl(*(u_int32_t *)&mask.s6_addr[i * 4]); \
for(kl=32; tmp_masklen >0 && kl>0 ; tmp_masklen--, kl-- , tmp_mask >>=1) \
if( tmp_mask & 0x1) \
break; \
} \
(masklen) =tmp_masklen; \
} while (0)
#define MASKLEN_TO_MASK6(masklen, mask6) \
do {\
u_char maskarray[8] = \
{0x80, 0xc0, 0xe0, 0xf0, 0xf8, 0xfc, 0xfe, 0xff}; \
int bytelen, bitlen, i; \
memset(&(mask6), 0, sizeof(mask6));\
bytelen = (masklen) / 8;\
bitlen = (masklen) % 8;\
for (i = 0; i < bytelen; i++) \
(mask6).s6_addr[i] = 0xff;\
if (bitlen) \
(mask6).s6_addr[bytelen] = maskarray[bitlen - 1]; \
}while(0);
/*
* A bunch of macros because of the lack of 32-bit boundary alignment.
* All because of one misalligned address format. Hopefully this will be
* fixed in PIMv3. (cp) must be (u_int8 *) .
*/
/* Originates from Eddy Rusty's (eddy@isi.edu) PIM-SM implementation for
* gated.
*/
/* PUT_NETLONG puts "network ordered" data to the datastream.
* PUT_HOSTLONG puts "host ordered" data to the datastream.
* GET_NETLONG gets the data and keeps it in "network order" in the memory
* GET_HOSTLONG gets the data, but in the memory it is in "host order"
* The same for all {PUT,GET}_{NET,HOST}{SHORT,LONG}
*/
#define GET_BYTE(val, cp) ((val) = *(cp)++)
#define PUT_BYTE(val, cp) (*(cp)++ = (u_int8)(val))
#define GET_HOSTSHORT(val, cp) \
do { \
register u_int16 Xv; \
Xv = (*(cp)++) << 8; \
Xv |= *(cp)++; \
(val) = Xv; \
} while (0)
#define PUT_HOSTSHORT(val, cp) \
do { \
register u_int16 Xv; \
Xv = (u_int16)(val); \
*(cp)++ = (u_int8)(Xv >> 8); \
*(cp)++ = (u_int8)Xv; \
} while (0)
#if defined(BYTE_ORDER) && (BYTE_ORDER == LITTLE_ENDIAN)
#define GET_NETSHORT(val, cp) \
do { \
register u_int16 Xv; \
Xv = *(cp)++; \
Xv |= (*(cp)++) << 8; \
(val) = Xv; \
} while (0)
#define PUT_NETSHORT(val, cp) \
do { \
register u_int16 Xv; \
Xv = (u_int16)(val); \
*(cp)++ = (u_int8)Xv; \
*(cp)++ = (u_int8)(Xv >> 8); \
} while (0)
#else
#define GET_NETSHORT(val, cp) GET_HOSTSHORT(val, cp)
#define PUT_NETSHORT(val, cp) PUT_HOSTSHORT(val, cp)
#endif /* {GET,PUT}_NETSHORT */
#define GET_HOSTLONG(val, cp) \
do { \
register u_long Xv; \
Xv = (*(cp)++) << 24; \
Xv |= (*(cp)++) << 16; \
Xv |= (*(cp)++) << 8; \
Xv |= *(cp)++; \
(val) = Xv; \
} while (0)
#define PUT_HOSTLONG(val, cp) \
do { \
register u_int32 Xv; \
Xv = (u_int32)(val); \
*(cp)++ = (u_int8)(Xv >> 24); \
*(cp)++ = (u_int8)(Xv >> 16); \
*(cp)++ = (u_int8)(Xv >> 8); \
*(cp)++ = (u_int8)Xv; \
} while (0)
#if defined(BYTE_ORDER) && (BYTE_ORDER == LITTLE_ENDIAN)
#define GET_NETLONG(val, cp) \
do { \
register u_long Xv; \
Xv = *(cp)++; \
Xv |= (*(cp)++) << 8; \
Xv |= (*(cp)++) << 16; \
Xv |= (*(cp)++) << 24; \
(val) = Xv; \
} while (0)
#define PUT_NETLONG(val, cp) \
do { \
register u_int32 Xv; \
Xv = (u_int32)(val); \
*(cp)++ = (u_int8)Xv; \
*(cp)++ = (u_int8)(Xv >> 8); \
*(cp)++ = (u_int8)(Xv >> 16); \
*(cp)++ = (u_int8)(Xv >> 24); \
} while (0)
#else
#define GET_NETLONG(val, cp) GET_HOSTLONG(val, cp)
#define PUT_NETLONG(val, cp) PUT_HOSTLONG(val, cp)
#endif /* {GET,PUT}_HOSTLONG */
#define GET_ESADDR6(esa, cp) /* XXX: hard coding */ \
do { \
(esa)->addr_family = *(cp)++; \
(esa)->encod_type = *(cp)++; \
(esa)->flags = *(cp)++; \
(esa)->masklen = *(cp)++; \
memcpy(&(esa)->src_addr, (cp), sizeof(struct in6_addr)); \
(cp) += sizeof(struct in6_addr); \
} while(0)
#define PUT_ESADDR6(addr, masklen, flags, cp) \
do { \
int i; \
struct in6_addr maskaddr; \
MASKLEN_TO_MASK6(masklen, maskaddr); \
*(cp)++ = ADDRF_IPv6; /* family */ \
*(cp)++ = ADDRT_IPv6; /* type */ \
*(cp)++ = (flags); /* flags */ \
*(cp)++ = (masklen); \
for (i = 0; i < sizeof(struct in6_addr); i++, (cp)++) \
*(cp) = maskaddr.s6_addr[i] & (addr).s6_addr[i]; \
} while(0)
#define GET_EGADDR6(ega, cp) /* XXX: hard coding */ \
do { \
(ega)->addr_family = *(cp)++; \
(ega)->encod_type = *(cp)++; \
(ega)->reserved = *(cp)++; \
(ega)->masklen = *(cp)++; \
memcpy(&(ega)->mcast_addr, (cp), sizeof(struct in6_addr)); \
(cp) += sizeof(struct in6_addr); \
} while(0)
#define PUT_EGADDR6(addr, masklen, reserved, cp) \
do { \
int i; \
struct in6_addr maskaddr; \
MASKLEN_TO_MASK6(masklen, maskaddr); \
*(cp)++ = ADDRF_IPv6; /* family */ \
*(cp)++ = ADDRT_IPv6; /* type */ \
*(cp)++ = (reserved); /* reserved; should be 0 */ \
*(cp)++ = (masklen); \
for (i = 0; i < sizeof(struct in6_addr); i++, (cp)++) \
*(cp) = maskaddr.s6_addr[i] & (addr).s6_addr[i]; \
} while(0)
#define GET_EUADDR6(eua, cp) /* XXX hard conding */ \
do { \
(eua)->addr_family = *(cp)++; \
(eua)->encod_type = *(cp)++; \
memcpy(&(eua)->unicast_addr, (cp), sizeof(struct in6_addr)); \
(cp) += sizeof(struct in6_addr); \
} while(0)
#define PUT_EUADDR6(addr, cp) \
do { \
*(cp)++ = ADDRF_IPv6; /* family */ \
*(cp)++ = ADDRT_IPv6; /* type */ \
memcpy((cp), &(addr), sizeof(struct in6_addr)); \
(cp) += sizeof(struct in6_addr); \
} while(0)
/* Used if no relaible unicast routing information available */
#define UCAST_DEFAULT_SOURCE_METRIC 1024
#define UCAST_DEFAULT_SOURCE_PREFERENCE 1024
#define DEFAULT_LOCAL_PREF 101 /* assert pref par defaut */
#define DEFAULT_LOCAL_METRIC 1024 /* assert metrique par default */
/*
* TODO: recalculate the messages sizes, probably with regard to the MTU
* TODO: cleanup
*/
#define MAX_JP_MESSAGE_SIZE 8192
#define MAX_JP_MESSAGE_POOL_NUMBER 8
#define MAX_JOIN_LIST_SIZE 1500
#define MAX_PRUNE_LIST_SIZE 1500
#define STAR_STAR_RP_MSK6LEN 8 /* Masklen for
* ff00 ::
* to encode (*,*,RP)
*/
/* interface independent statistics */
struct pim6dstat {
/* incoming PIM6 packets on this interface */
u_quad_t in_pim6_register;
u_quad_t in_pim6_register_stop;
u_quad_t in_pim6_cand_rp;
u_quad_t in_pim6_graft; /* for dense mode only */
u_quad_t in_pim6_graft_ack; /* for dense mode only */
/* outgoing PIM6 packets on this interface */
u_quad_t out_pim6_register;
u_quad_t out_pim6_register_stop;
u_quad_t out_pim6_cand_rp;
/* SPT transition */
u_quad_t pim6_trans_spt_forward;
u_quad_t pim6_trans_spt_rp;
/* occurrences of timeouts */
u_quad_t pim6_bootstrap_timo;/* pim_bootstrap_timer */
u_quad_t pim6_rpgrp_timo; /* rp_grp_entry_ptr->holdtime */
u_quad_t pim6_rtentry_timo; /* routing entry */
/* kernel internals */
u_quad_t kern_add_cache;
u_quad_t kern_add_cache_fail;
u_quad_t kern_del_cache;
u_quad_t kern_del_cache_fail;
u_quad_t kern_sgcnt_fail;
};
extern struct pim6dstat pim6dstat;
#endif
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