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freebsd-dev/usr.sbin/pim6dd/pimdd.h
Yoshinobu Inoue 0fea3d5165 IPv6 multicast routing. 
kernel IPv6 multicast routing support.
  pim6 dense mode daemon
  pim6 sparse mode daemon
  netstat support of IPv6 multicast routing statistics

  Merging to the current and testing with other existing multicast routers
  is done by Tatsuya Jinmei <jinmei@kame.net>, who writes and maintainances
  the base code in KAME distribution.

  Make world check and kernel build check was also successful.
2000-01-28 05:10:56 +00:00

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/*
* Copyright (c) 1998 by the University of Oregon.
* 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 Oregon.
* The name of the University of Oregon may not be used to endorse or
* promote products derived from this software without specific prior
* written permission.
*
* THE UNIVERSITY OF OREGON 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 UO, 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
* Kurt Windisch (kurtw@antc.uoregon.edu)
*
* $Id: pimdd.h,v 1.1.1.1 1999/08/08 23:30:53 itojun Exp $
*/
/*
* Part of this program has been derived from PIM sparse-mode pimd.
* The pimd program is covered by the license in the accompanying file
* named "LICENSE.pimd".
*
* The pimd program is COPYRIGHT 1998 by University of Southern California.
*
* Part of this program has been derived from mrouted.
* The mrouted program is covered by the license in the accompanying file
* named "LICENSE.mrouted".
*
* The mrouted program is COPYRIGHT 1989 by The Board of Trustees of
* Leland Stanford Junior University.
*
* $FreeBSD$
*/
#include <netinet6/pim6.h>
#define PIM_PROTOCOL_VERSION 2
#define PIMD_VERSION PIM_PROTOCOL_VERSION
#define PIMD_SUBVERSION 1
#if 0
#define PIM_CONSTANT 0x000eff00 /* constant portion of 'group' field */
#endif
#define PIM_CONSTANT 0
#define PIMD_LEVEL (PIM_CONSTANT | PIMD_VERSION | (PIMD_SUBVERSION << 8))
#define INADDR_ALL_PIM_ROUTERS (u_int32)0xe000000D /* 224.0.0.13 */
/* PIM protocol timers (in seconds) */
#ifndef TIMER_INTERVAL
#define TIMER_INTERVAL 5 /* virtual timer granularity */
#endif /* TIMER_INTERVAL */
#define PIM_DATA_TIMEOUT 210
#define PIM_TIMER_HELLO_PERIOD 30
#define PIM_JOIN_PRUNE_HOLDTIME 210
#define PIM_RANDOM_DELAY_JOIN_TIMEOUT 3
#define PIM_GRAFT_RETRANS_PERIOD 3
#define PIM_TIMER_HELLO_HOLDTIME (3.5 * PIM_TIMER_HELLO_PERIOD)
#define PIM_ASSERT_TIMEOUT 210
/* Misc definitions */
#define SINGLE_SRC_MSKLEN 32 /* the single source mask length */
#define SINGLE_GRP_MSKLEN 32 /* the single group mask length */
#define SINGLE_SRC_MSK6LEN 128 /* the single source mask length for IPv6*/
#define SINGLE_GRP_MSK6LEN 128 /* the single group mask length for IPv6*/
/* TODO: change? */
#define PIM_GROUP_PREFIX_DEFAULT_MASKLEN 16 /* The default group masklen if
* omitted in the config file.
*/
#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_LOCAL_PREF 101 /* Default assert preference */
#define DEFAULT_LOCAL_METRIC 1024 /* Default assert metric */
/**************************************************************************
* 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_IPv4 0
#define ADDRT_IPv6 0
#if 0 /* XXX: the definition is for IPv4 only */
/* Encoded-Unicast: 6 bytes long */
typedef struct pim_encod_uni_addr_ {
u_int8 addr_family;
u_int8 encod_type;
u_int32 unicast_addr; /* XXX: Note the 32-bit boundary
* misalignment for the unicast
* address when placed in the
* memory. Must read it byte-by-byte!
*/
} pim_encod_uni_addr_t;
#endif
/* 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;
#if 0 /* XXX: the definition is for IPv4 only */
/* Encoded-Group */
typedef struct pim_encod_grp_addr_ {
u_int8 addr_family;
u_int8 encod_type;
u_int8 reserved;
u_int8 masklen;
u_int32 mcast_addr;
} pim_encod_grp_addr_t;
#endif
/* 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;
#if 0 /* XXX: the definition is for IPv4 only */
/* Encoded-Source */
typedef struct pim_encod_src_addr_ {
u_int8 addr_family;
u_int8 encod_type;
u_int8 flags;
u_int8 masklen;
u_int32 src_addr;
} pim_encod_src_addr_t;
#endif
/* 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;
#define USADDR_RP_BIT 0x1
#define USADDR_WC_BIT 0x2
#define USADDR_S_BIT 0x4
/**************************************************************************
* PIM Messages formats *
*************************************************************************/
/* TODO: XXX: some structures are probably not used at all */
typedef struct pim pim_header_t;
/* 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;
#if 0
/* PIM Join/Prune: XXX: all 32-bit addresses misaligned! */
typedef struct pim_jp_header_ {
pim_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_ {
pim_encod_grp_addr_t encod_grp;
u_int16 number_join_src;
u_int16 number_prune_src;
} pim_jp_encod_grp_t;
#endif
#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
#ifndef PIM_REGISTER
#define PIM_REGISTER 1
#endif
#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
#define PIM_V1_QUERY 0
#define PIM_V1_REGISTER 1
#define PIM_V1_REGISTER_STOP 2
#define PIM_V1_JOIN_PRUNE 3
#define PIM_V1_RP_REACHABILITY 4
#define PIM_V1_ASSERT 5
#define PIM_V1_GRAFT 6
#define PIM_V1_GRAFT_ACK 7
/* 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
#define MASK_TO_MASKLEN(mask, masklen) \
do { \
register u_int32 tmp_mask = ntohl((mask)); \
register u_int8 tmp_masklen = sizeof((mask)) << 3; \
for ( ; tmp_masklen > 0; tmp_masklen--, tmp_mask >>= 1) \
if (tmp_mask & 0x1) \
break; \
(masklen) = tmp_masklen; \
} while (0)
#define MASKLEN_TO_MASK(masklen, mask) \
do { \
(mask) = (masklen)? htonl(~0 << ((sizeof((mask)) << 3) - (masklen))) : 0;\
} 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_ESADDR(esa, cp) \
do { \
(esa)->addr_family = *(cp)++; \
(esa)->encod_type = *(cp)++; \
(esa)->flags = *(cp)++; \
(esa)->masklen = *(cp)++; \
GET_NETLONG((esa)->src_addr, (cp)); \
} while(0)
#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_ESADDR(addr, masklen, flags, cp) \
do { \
u_int32 mask; \
MASKLEN_TO_MASK((masklen), mask); \
*(cp)++ = ADDRF_IPv4; /* family */ \
*(cp)++ = ADDRT_IPv4; /* type */ \
*(cp)++ = (flags); /* flags */ \
*(cp)++ = (masklen); \
PUT_NETLONG((addr) & mask, (cp)); \
} 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_EGADDR(ega, cp) \
do { \
(ega)->addr_family = *(cp)++; \
(ega)->encod_type = *(cp)++; \
(ega)->reserved = *(cp)++; \
(ega)->masklen = *(cp)++; \
GET_NETLONG((ega)->mcast_addr, (cp)); \
} 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_EGADDR(addr, masklen, reserved, cp) \
do { \
u_int32 mask; \
MASKLEN_TO_MASK((masklen), mask); \
*(cp)++ = ADDRF_IPv4; /* family */ \
*(cp)++ = ADDRT_IPv4; /* type */ \
*(cp)++ = (reserved); /* reserved; should be 0 */ \
*(cp)++ = (masklen); \
PUT_NETLONG((addr) & mask, (cp)); \
} 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_EUADDR(eua, cp) \
do { \
(eua)->addr_family = *(cp)++; \
(eua)->encod_type = *(cp)++; \
GET_NETLONG((eua)->unicast_addr, (cp)); \
} 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_EUADDR(addr, cp) \
do { \
*(cp)++ = ADDRF_IPv4; /* family */ \
*(cp)++ = ADDRT_IPv4; /* type */ \
PUT_NETLONG((addr), (cp)); \
} 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)
/* TODO: Currently not used. Probably not need at all. Delete! */
#ifdef NOSUCHDEF
/* This is completely IGMP related stuff? */
#define PIM_LEAF_TIMEOUT (3.5 * IGMP_QUERY_INTERVAL)
#endif /* NOSUCHDEF */
#if defined(__bsdi__) || defined(__NetBSD__)
/*
* Struct used to communicate from kernel to multicast router
* note the convenient similarity to an IP packet
*/
struct igmpmsg {
u_long unused1;
u_long unused2;
u_char im_msgtype; /* what type of message */
#define IGMPMSG_NOCACHE 1
#define IGMPMSG_WRONGVIF 2
#define IGMPMSG_WHOLEPKT 3 /* used for user level encap*/
u_char im_mbz; /* must be zero */
u_char im_vif; /* vif rec'd on */
u_char unused3;
struct in_addr im_src, im_dst;
};
#endif
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