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-rw-r--r--sys/netinet6/ip6_mroute.c277
-rw-r--r--sys/netinet6/ip6_mroute.h48
2 files changed, 220 insertions, 105 deletions
diff --git a/sys/netinet6/ip6_mroute.c b/sys/netinet6/ip6_mroute.c
index 3053c266a6d..6cd7bc1015e 100644
--- a/sys/netinet6/ip6_mroute.c
+++ b/sys/netinet6/ip6_mroute.c
@@ -1,9 +1,10 @@
-/* $OpenBSD: ip6_mroute.c,v 1.3 2000/02/07 06:09:10 itojun Exp $ */
+/* $OpenBSD: ip6_mroute.c,v 1.4 2000/05/19 13:11:34 itojun Exp $ */
+/* $KAME: ip6_mroute.c,v 1.24 2000/05/19 07:37:05 jinmei Exp $ */
/*
* Copyright (C) 1998 WIDE Project.
* All rights reserved.
- *
+ *
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
@@ -15,7 +16,7 @@
* 3. Neither the name of the project nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
- *
+ *
* THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
@@ -93,6 +94,7 @@ static int register_send __P((struct ip6_hdr *, struct mif6 *,
* except for netstat or debugging purposes.
*/
struct socket *ip6_mrouter = NULL;
+int ip6_mrouter_ver = 0;
int ip6_mrtproto = IPPROTO_PIM; /* for netstat only */
struct mrt6stat mrt6stat;
@@ -120,7 +122,7 @@ static void expire_upcalls __P((void *));
#ifdef MROUTING
extern struct socket *ip_mrouter;
#endif
-#endif
+#endif
/*
* 'Interfaces' associated with decapsulator (so we can tell
@@ -161,7 +163,7 @@ static int pim6;
* Quality of service parameter to be added in the future!!!
*/
-#define MF6CFIND(o, g, rt) { \
+#define MF6CFIND(o, g, rt) do { \
register struct mf6c *_rt = mf6ctable[MF6CHASH(o,g)]; \
rt = NULL; \
mrt6stat.mrt6s_mfc_lookups++; \
@@ -177,13 +179,13 @@ static int pim6;
if (rt == NULL) { \
mrt6stat.mrt6s_mfc_misses++; \
} \
-}
+} while (0)
/*
* Macros to compute elapsed time efficiently
* Borrowed from Van Jacobson's scheduling code
*/
-#define TV_DELTA(a, b, delta) { \
+#define TV_DELTA(a, b, delta) do { \
register int xxs; \
\
delta = (a).tv_usec - (b).tv_usec; \
@@ -199,7 +201,7 @@ static int pim6;
delta += (1000000 * xxs); \
} \
} \
-}
+} while (0)
#define TV_LT(a, b) (((a).tv_usec < (b).tv_usec && \
(a).tv_sec <= (b).tv_sec) || (a).tv_sec < (b).tv_sec)
@@ -212,7 +214,7 @@ static void collate();
static int get_sg_cnt __P((struct sioc_sg_req6 *));
static int get_mif6_cnt __P((struct sioc_mif_req6 *));
-static int ip6_mrouter_init __P((struct socket *, struct mbuf *));
+static int ip6_mrouter_init __P((struct socket *, struct mbuf *, int));
static int add_m6if __P((struct mif6ctl *));
static int del_m6if __P((mifi_t *));
static int add_m6fc __P((struct mf6cctl *));
@@ -231,7 +233,10 @@ ip6_mrouter_set(cmd, so, m)
return EACCES;
switch (cmd) {
- case MRT6_INIT: return ip6_mrouter_init(so, m);
+#ifdef MRT6_OINIT
+ case MRT6_OINIT: return ip6_mrouter_init(so, m, cmd);
+#endif
+ case MRT6_INIT: return ip6_mrouter_init(so, m, cmd);
case MRT6_DONE: return ip6_mrouter_done();
case MRT6_ADD_MIF: return add_m6if(mtod(m, struct mif6ctl *));
case MRT6_DEL_MIF: return del_m6if(mtod(m, mifi_t *));
@@ -311,7 +316,7 @@ get_sg_cnt(req)
return(ESRCH);
#if 0
req->pktcnt = req->bytecnt = req->wrong_if = 0xffffffff;
-#endif
+#endif
return 0;
}
@@ -368,9 +373,10 @@ set_pim6(i)
* Enable multicast routing
*/
static int
-ip6_mrouter_init(so, m)
+ip6_mrouter_init(so, m, cmd)
struct socket *so;
struct mbuf *m;
+ int cmd;
{
int *v;
@@ -395,6 +401,7 @@ ip6_mrouter_init(so, m)
if (ip6_mrouter != NULL) return EADDRINUSE;
ip6_mrouter = so;
+ ip6_mrouter_ver = cmd;
bzero((caddr_t)mf6ctable, sizeof(mf6ctable));
bzero((caddr_t)nexpire, sizeof(nexpire));
@@ -441,7 +448,7 @@ ip6_mrouter_done()
*/
if (!ip_mrouter)
#endif
-#endif
+#endif
{
for (mifi = 0; mifi < nummifs; mifi++) {
if (mif6table[mifi].m6_ifp &&
@@ -457,7 +464,7 @@ ip6_mrouter_done()
#ifdef notyet
bzero((caddr_t)qtable, sizeof(qtable));
bzero((caddr_t)tbftable, sizeof(tbftable));
-#endif
+#endif
bzero((caddr_t)mif6table, sizeof(mif6table));
nummifs = 0;
@@ -492,8 +499,9 @@ ip6_mrouter_done()
* Reset de-encapsulation cache
*/
reg_mif_num = -1;
-
+
ip6_mrouter = NULL;
+ ip6_mrouter_ver = 0;
splx(s);
@@ -520,7 +528,7 @@ add_m6if(mifcp)
int error, s;
#ifdef notyet
struct tbf *m_tbf = tbftable + mifcp->mif6c_mifi;
-#endif
+#endif
if (mifcp->mif6c_mifi >= MAXMIFS)
return EINVAL;
@@ -570,7 +578,7 @@ add_m6if(mifcp)
#ifdef notyet
/* scaling up here allows division by 1024 in critical code */
mifp->m6_rate_limit = mifcp->mif6c_rate_limit * 1024 / 1000;
-#endif
+#endif
/* initialize per mif pkt counters */
mifp->m6_pkt_in = 0;
mifp->m6_pkt_out = 0;
@@ -628,7 +636,7 @@ del_m6if(mifip)
#ifdef notyet
bzero((caddr_t)qtable[*mifip], sizeof(qtable[*mifip]));
bzero((caddr_t)mifp->m6_tbf, sizeof(*(mifp->m6_tbf)));
-#endif
+#endif
bzero((caddr_t)mifp, sizeof (*mifp));
/* Adjust nummifs down */
@@ -681,7 +689,7 @@ add_m6fc(mfccp)
return 0;
}
- /*
+ /*
* Find the entry for which the upcall was made and update
*/
s = splnet();
@@ -753,7 +761,7 @@ add_m6fc(mfccp)
#endif
for (rt = mf6ctable[hash]; rt; rt = rt->mf6c_next) {
-
+
if (IN6_ARE_ADDR_EQUAL(&rt->mf6c_origin.sin6_addr,
&mfccp->mf6cc_origin.sin6_addr)&&
IN6_ARE_ADDR_EQUAL(&rt->mf6c_mcastgrp.sin6_addr,
@@ -780,7 +788,7 @@ add_m6fc(mfccp)
splx(s);
return ENOBUFS;
}
-
+
/* insert new entry at head of hash chain */
rt->mf6c_origin = mfccp->mf6cc_origin;
rt->mf6c_mcastgrp = mfccp->mf6cc_mcastgrp;
@@ -791,7 +799,7 @@ add_m6fc(mfccp)
rt->mf6c_wrong_if = 0;
rt->mf6c_expire = 0;
rt->mf6c_stall = NULL;
-
+
/* link into table */
rt->mf6c_next = mf6ctable[hash];
mf6ctable[hash] = rt;
@@ -803,7 +811,7 @@ add_m6fc(mfccp)
#ifdef UPCALL_TIMING
/*
- * collect delay statistics on the upcalls
+ * collect delay statistics on the upcalls
*/
static void
collate(t)
@@ -812,9 +820,9 @@ collate(t)
register u_long d;
register struct timeval tp;
register u_long delta;
-
+
GET_TIME(tp);
-
+
if (TV_LT(*t, tp))
{
TV_DELTA(tp, *t, delta);
@@ -995,7 +1003,7 @@ ip6_mforward(ip6, ifp, m)
splx(s);
return ENOBUFS;
}
-
+
/* is there an upcall waiting for this packet? */
hash = MF6CHASH(ip6->ip6_src, ip6->ip6_dst);
for (rt = mf6ctable[hash]; rt; rt = rt->mf6c_next) {
@@ -1009,6 +1017,9 @@ ip6_mforward(ip6, ifp, m)
if (rt == NULL) {
struct mrt6msg *im;
+#ifdef MRT6_OINIT
+ struct omrt6msg *oim;
+#endif
/* no upcall, so make a new entry */
rt = (struct mf6c *)malloc(sizeof(*rt), M_MRTABLE,
@@ -1033,14 +1044,35 @@ ip6_mforward(ip6, ifp, m)
return ENOBUFS;
}
- /*
+ /*
* Send message to routing daemon
*/
sin6.sin6_addr = ip6->ip6_src;
-
- im = mtod(mm, struct mrt6msg *);
- im->im6_msgtype = MRT6MSG_NOCACHE;
- im->im6_mbz = 0;
+
+ im = NULL;
+#ifdef MRT6_OINIT
+ oim = NULL;
+#endif
+ switch (ip6_mrouter_ver) {
+#ifdef MRT6_OINIT
+ case MRT6_OINIT:
+ oim = mtod(mm, struct omrt6msg *);
+ oim->im6_msgtype = MRT6MSG_NOCACHE;
+ oim->im6_mbz = 0;
+ break;
+#endif
+ case MRT6_INIT:
+ im = mtod(mm, struct mrt6msg *);
+ im->im6_msgtype = MRT6MSG_NOCACHE;
+ im->im6_mbz = 0;
+ break;
+ default:
+ free(rte, M_MRTABLE);
+ m_freem(mb0);
+ free(rt, M_MRTABLE);
+ splx(s);
+ return EINVAL;
+ }
#ifdef MRT6DEBUG
if (mrt6debug & DEBUG_FORWARD)
@@ -1053,7 +1085,16 @@ ip6_mforward(ip6, ifp, m)
mifp++, mifi++)
;
- im->im6_mif = mifi;
+ switch (ip6_mrouter_ver) {
+#ifdef MRT6_OINIT
+ case MRT6_OINIT:
+ oim->im6_mif = mifi;
+ break;
+#endif
+ case MRT6_INIT:
+ im->im6_mif = mifi;
+ break;
+ }
if (socket_send(ip6_mrouter, mm, &sin6) < 0) {
log(LOG_WARNING, "ip6_mforward: ip6_mrouter "
@@ -1195,12 +1236,12 @@ ip6_mdq(m, ifp, rt)
* seperate.
*/
-#define MC6_SEND(ip6,mifp,m) { \
- if ((mifp)->m6_flags & MIFF_REGISTER) \
- register_send((ip6), (mifp), (m)); \
- else \
- phyint_send((ip6), (mifp), (m)); \
-}
+#define MC6_SEND(ip6, mifp, m) do { \
+ if ((mifp)->m6_flags & MIFF_REGISTER) \
+ register_send((ip6), (mifp), (m)); \
+ else \
+ phyint_send((ip6), (mifp), (m)); \
+} while (0)
/*
* Don't forward if it didn't arrive from the parent mif
@@ -1214,7 +1255,7 @@ ip6_mdq(m, ifp, rt)
log(LOG_DEBUG,
"wrong if: ifid %d mifi %d mififid %x\n",
ifp->if_index, mifi,
- mif6table[mifi].m6_ifp->if_index);
+ mif6table[mifi].m6_ifp->if_index);
#endif
mrt6stat.mrt6s_wrong_if++;
rt->mf6c_wrong_if++;
@@ -1223,55 +1264,82 @@ ip6_mdq(m, ifp, rt)
* packets on this interface, send a message to the
* routing daemon.
*/
- if(mifi < nummifs) /* have to make sure this is a valid mif */
- if(mif6table[mifi].m6_ifp)
-
- if (pim6 && (m->m_flags & M_LOOP) == 0) {
- /*
- * Check the M_LOOP flag to avoid an
- * unnecessary PIM assert.
- * XXX: M_LOOP is an ad-hoc hack...
- */
- static struct sockaddr_in6 sin6 =
- { sizeof(sin6), AF_INET6 };
-
- register struct mbuf *mm;
- struct mrt6msg *im;
-
- mm = m_copy(m, 0,
- sizeof(struct ip6_hdr));
- if (mm &&
- (M_HASCL(mm) ||
- mm->m_len < sizeof(struct ip6_hdr)))
- mm = m_pullup(mm, sizeof(struct ip6_hdr));
- if (mm == NULL)
- return ENOBUFS;
-
- im = mtod(mm, struct mrt6msg *);
- im->im6_msgtype = MRT6MSG_WRONGMIF;
- im->im6_mbz = 0;
+ /* have to make sure this is a valid mif */
+ if (mifi < nummifs && mif6table[mifi].m6_ifp)
+ if (pim6 && (m->m_flags & M_LOOP) == 0) {
+ /*
+ * Check the M_LOOP flag to avoid an
+ * unnecessary PIM assert.
+ * XXX: M_LOOP is an ad-hoc hack...
+ */
+ static struct sockaddr_in6 sin6 =
+ { sizeof(sin6), AF_INET6 };
- for (mifp = mif6table, iif = 0;
- iif < nummifs && mifp &&
- mifp->m6_ifp != ifp;
- mifp++, iif++);
+ register struct mbuf *mm;
+ struct mrt6msg *im;
+#ifdef MRT6_OINIT
+ struct omrt6msg *oim;
+#endif
- im->im6_mif = iif;
+ mm = m_copy(m, 0, sizeof(struct ip6_hdr));
+ if (mm &&
+ (M_HASCL(mm) ||
+ mm->m_len < sizeof(struct ip6_hdr)))
+ mm = m_pullup(mm, sizeof(struct ip6_hdr));
+ if (mm == NULL)
+ return ENOBUFS;
+
+#ifdef MRT6_OINIT
+ oim = NULL;
+#endif
+ im = NULL;
+ switch (ip6_mrouter_ver) {
+#ifdef MRT6_OINIT
+ case MRT6_OINIT:
+ oim = mtod(mm, struct omrt6msg *);
+ oim->im6_msgtype = MRT6MSG_WRONGMIF;
+ oim->im6_mbz = 0;
+ break;
+#endif
+ case MRT6_INIT:
+ im = mtod(mm, struct mrt6msg *);
+ im->im6_msgtype = MRT6MSG_WRONGMIF;
+ break;
+ default:
+ m_freem(mm);
+ return EINVAL;
+ }
+ for (mifp = mif6table, iif = 0;
+ iif < nummifs && mifp &&
+ mifp->m6_ifp != ifp;
+ mifp++, iif++)
+ ;
+
+ switch (ip6_mrouter_ver) {
+#ifdef MRT6_OINIT
+ case MRT6_OINIT:
+ oim->im6_mif = iif;
+ sin6.sin6_addr = oim->im6_src;
+ break;
+#endif
+ case MRT6_INIT:
+ im->im6_mif = iif;
sin6.sin6_addr = im->im6_src;
+ break;
+ }
- mrt6stat.mrt6s_upcalls++;
+ mrt6stat.mrt6s_upcalls++;
- if (socket_send(ip6_mrouter, mm,
- &sin6) < 0) {
+ if (socket_send(ip6_mrouter, mm, &sin6) < 0) {
#ifdef MRT6DEBUG
- if (mrt6debug)
- log(LOG_WARNING, "mdq, ip6_mrouter socket queue full\n");
+ if (mrt6debug)
+ log(LOG_WARNING, "mdq, ip6_mrouter socket queue full\n");
#endif
- ++mrt6stat.mrt6s_upq_sockfull;
- return ENOBUFS;
- } /* if socket Q full */
- } /* if PIM */
+ ++mrt6stat.mrt6s_upq_sockfull;
+ return ENOBUFS;
+ } /* if socket Q full */
+ } /* if PIM */
return 0;
} /* if wrong iif */
@@ -1293,6 +1361,25 @@ ip6_mdq(m, ifp, rt)
*/
for (mifp = mif6table, mifi = 0; mifi < nummifs; mifp++, mifi++)
if (IF_ISSET(mifi, &rt->mf6c_ifset)) {
+ /*
+ * check if the outgoing packet is going to break
+ * a scope boundary.
+ * XXX For packets through PIM register tunnel
+ * interface, we believe a routing daemon.
+ */
+ if ((mif6table[rt->mf6c_parent].m6_flags &
+ MIFF_REGISTER) == 0 &&
+ (mif6table[mifi].m6_flags & MIFF_REGISTER) == 0 &&
+ (in6_addr2scopeid(ifp, &ip6->ip6_dst) !=
+ in6_addr2scopeid(mif6table[mifi].m6_ifp,
+ &ip6->ip6_dst) ||
+ in6_addr2scopeid(ifp, &ip6->ip6_src) !=
+ in6_addr2scopeid(mif6table[mifi].m6_ifp,
+ &ip6->ip6_src))) {
+ ip6stat.ip6s_badscope++;
+ continue;
+ }
+
mifp->m6_pkt_out++;
mifp->m6_bytes_out += plen;
MC6_SEND(ip6, mifp, m);
@@ -1365,7 +1452,7 @@ phyint_send(ip6, mifp, m)
ip6_mloopback(ifp, m, &ro6.ro_dst);
}
/*
- * Put the packet into the sending queue of the outgoing interface
+ * Put the packet into the sending queue of the outgoing interface
* if it would fit in the MTU of the interface.
*/
if (mb_copy->m_pkthdr.len < ifp->if_mtu || ifp->if_mtu < IPV6_MMTU) {
@@ -1402,11 +1489,11 @@ phyint_send(ip6, mifp, m)
#endif /* MRT6DEBUG */
m_freem(mb_copy); /* simply discard the packet */
return;
-#endif
+#endif
}
}
-static int
+static int
register_send(ip6, mif, m)
register struct ip6_hdr *ip6;
struct mif6 *mif;
@@ -1446,7 +1533,7 @@ register_send(ip6, mif, m)
/* TODO: check it! */
mm->m_pkthdr.len = len + sizeof(struct ip6_hdr);
- /*
+ /*
* Send message to routing daemon
*/
sin6.sin6_addr = ip6->ip6_src;
@@ -1471,7 +1558,7 @@ register_send(ip6, mif, m)
}
return 0;
}
-
+
/*
* PIM sparse mode hook
* Receives the pim control messages, and passes them up to the listening
@@ -1513,12 +1600,12 @@ pim6_input(mp, offp, proto)
* if the packet is at least as big as a REGISTER, go ahead
* and grab the PIM REGISTER header size, to avoid another
* possible m_pullup() later.
- *
+ *
* PIM_MINLEN == pimhdr + u_int32 == 8
* PIM6_REG_MINLEN == pimhdr + reghdr + eip6hdr == 4 + 4 + 40
*/
minlen = (pimlen >= PIM6_REG_MINLEN) ? PIM6_REG_MINLEN : PIM_MINLEN;
-
+
/*
* Make sure that the IP6 and PIM headers in contiguous memory, and
* possibly the PIM REGISTER header
@@ -1527,7 +1614,7 @@ pim6_input(mp, offp, proto)
IP6_EXTHDR_CHECK(m, off, minlen, IPPROTO_DONE);
/* adjust pointer */
ip6 = mtod(m, struct ip6_hdr *);
-
+
/* adjust mbuf to point to the PIM header */
pim = (struct pim *)((caddr_t)ip6 + off);
#else
@@ -1558,7 +1645,7 @@ pim6_input(mp, offp, proto)
if (mrt6debug & DEBUG_PIM)
log(LOG_DEBUG,
"pim6_input: invalid checksum\n");
-#endif
+#endif
m_freem(m);
return(IPPROTO_DONE);
}
@@ -1572,7 +1659,7 @@ pim6_input(mp, offp, proto)
log(LOG_ERR,
"pim6_input: incorrect version %d, expecting %d\n",
pim->pim_ver, PIM_VERSION);
-#endif
+#endif
m_freem(m);
return(IPPROTO_DONE);
}
@@ -1619,7 +1706,7 @@ pim6_input(mp, offp, proto)
"pim6_input: register packet size too "
"small %d from %s\n",
pimlen, ip6_sprintf(&ip6->ip6_src));
-#endif
+#endif
m_freem(m);
return(IPPROTO_DONE);
}
@@ -1633,7 +1720,7 @@ pim6_input(mp, offp, proto)
ip6_sprintf(&eip6->ip6_src),
ip6_sprintf(&eip6->ip6_dst),
ntohs(eip6->ip6_plen));
-#endif
+#endif
/* verify the inner packet is destined to a mcast group */
if (!IN6_IS_ADDR_MULTICAST(&eip6->ip6_dst)) {
@@ -1644,7 +1731,7 @@ pim6_input(mp, offp, proto)
"pim6_input: inner packet of register "
"is not multicast %s\n",
ip6_sprintf(&eip6->ip6_dst));
-#endif
+#endif
m_freem(m);
return(IPPROTO_DONE);
}
@@ -1658,7 +1745,7 @@ pim6_input(mp, offp, proto)
log(LOG_ERR,
"pim6_input: pim register: "
"could not copy register head\n");
-#endif
+#endif
m_freem(m);
return(IPPROTO_DONE);
}
@@ -1685,7 +1772,7 @@ pim6_input(mp, offp, proto)
/* prepare the register head to send to the mrouting daemon */
m = mcp;
}
-
+
/*
* Pass the PIM message up to the daemon; if it is a register message
* pass the 'head' only up to the daemon. This includes the
diff --git a/sys/netinet6/ip6_mroute.h b/sys/netinet6/ip6_mroute.h
index 9060d359a3b..11540439467 100644
--- a/sys/netinet6/ip6_mroute.h
+++ b/sys/netinet6/ip6_mroute.h
@@ -1,9 +1,10 @@
-/* $OpenBSD: ip6_mroute.h,v 1.2 1999/12/10 10:04:28 angelos Exp $ */
+/* $OpenBSD: ip6_mroute.h,v 1.3 2000/05/19 13:11:34 itojun Exp $ */
+/* $KAME: ip6_mroute.h,v 1.10 2000/05/19 02:38:53 itojun Exp $ */
/*
* Copyright (C) 1998 WIDE Project.
* All rights reserved.
- *
+ *
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
@@ -15,7 +16,7 @@
* 3. Neither the name of the project nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
- *
+ *
* THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
@@ -49,15 +50,18 @@
/*
* Multicast Routing set/getsockopt commands.
*/
-#define MRT6_INIT 100 /* initialize forwarder */
+#ifdef _KERNEL
+#define MRT6_OINIT 100 /* initialize forwarder (omrt6msg) */
+#endif
#define MRT6_DONE 101 /* shut down forwarder */
#define MRT6_ADD_MIF 102 /* add multicast interface */
#define MRT6_DEL_MIF 103 /* delete multicast interface */
#define MRT6_ADD_MFC 104 /* insert forwarding cache entry */
#define MRT6_DEL_MFC 105 /* delete forwarding cache entry */
#define MRT6_PIM 107 /* enable pim code */
+#define MRT6_INIT 108 /* initialize forwarder (mrt6msg) */
-#if BSD >= 199103
+#if BSD >= 199103
#define GET_TIME(t) microtime(&t)
#elif defined(sun)
#define GET_TIME(t) uniqtime(&t)
@@ -135,21 +139,45 @@ struct mrt6stat {
u_quad_t mrt6s_upq_sockfull; /* upcalls dropped - socket full */
};
+#ifdef MRT6_OINIT
/*
* Struct used to communicate from kernel to multicast router
* note the convenient similarity to an IPv6 header.
+ * XXX old version, superseded by mrt6msg.
*/
-struct mrt6msg {
+struct omrt6msg {
u_long unused1;
u_char im6_msgtype; /* what type of message */
-#define MRT6MSG_NOCACHE 1
+#if 0
+#define MRT6MSG_NOCACHE 1
#define MRT6MSG_WRONGMIF 2
#define MRT6MSG_WHOLEPKT 3 /* used for user level encap*/
+#endif
u_char im6_mbz; /* must be zero */
u_char im6_mif; /* mif rec'd on */
u_char unused2;
struct in6_addr im6_src, im6_dst;
};
+#endif
+
+/*
+ * Structure used to communicate from kernel to multicast router.
+ * We'll overlay the structure onto an MLD header (not an IPv6 header
+ * like igmpmsg{} used for IPv4 implementation). This is because this
+ * structure will be passed via an IPv6 raw socket, on which an application
+ * will only receive the payload i.e. the data after the IPv6 header and all
+ * the extension headers. (see Section 3 of draft-ietf-ipngwg-2292bis-01)
+ */
+struct mrt6msg {
+#define MRT6MSG_NOCACHE 1
+#define MRT6MSG_WRONGMIF 2
+#define MRT6MSG_WHOLEPKT 3 /* used for user level encap*/
+ u_char im6_mbz; /* must be zero */
+ u_char im6_msgtype; /* what type of message */
+ u_int16_t im6_mif; /* mif rec'd on */
+ u_int32_t im6_pad; /* padding for 64bit arch */
+ struct in6_addr im6_src, im6_dst;
+};
/*
* Argument structure used by multicast routing daemon to get src-grp
@@ -183,7 +211,7 @@ struct mif6 {
u_int m6_rate_limit; /* max rate */
#ifdef notyet
struct tbf *m6_tbf; /* token bucket structure at intf. */
-#endif
+#endif
struct in6_addr m6_lcl_addr; /* local interface address */
struct ifnet *m6_ifp; /* pointer to interface */
u_quad_t m6_pkt_in; /* # pkts in on interface */
@@ -194,11 +222,11 @@ struct mif6 {
#ifdef notyet
u_int m6_rsvp_on; /* RSVP listening on this vif */
struct socket *m6_rsvpd; /* RSVP daemon socket */
-#endif
+#endif
};
/*
- * The kernel's multicast forwarding cache entry structure
+ * The kernel's multicast forwarding cache entry structure
*/
struct mf6c {
struct sockaddr_in6 mf6c_origin; /* IPv6 origin of mcasts */