int
ifpoll_deregister(struct ifnet *ifp)
{
struct netmsg_base nmsg;
int error;
if (ifp->if_npoll == NULL)
return EOPNOTSUPP;
ifnet_serialize_all(ifp);
if ((ifp->if_flags & IFF_NPOLLING) == 0) {
ifnet_deserialize_all(ifp);
return EINVAL;
}
ifp->if_flags &= ~IFF_NPOLLING;
ifnet_deserialize_all(ifp);
netmsg_init(&nmsg, NULL, &curthread->td_msgport,
0, ifpoll_deregister_handler);
nmsg.lmsg.u.ms_resultp = ifp;
error = lwkt_domsg(netisr_portfn(0), &nmsg.lmsg, 0);
if (!error) {
ifnet_serialize_all(ifp);
ifp->if_npoll(ifp, NULL);
KASSERT(ifp->if_npoll_cpuid < 0, ("invalid npoll cpuid"));
ifnet_deserialize_all(ifp);
}
return error;
}
/*
* Initialize an interface's internet address
* and routing table entry.
*/
static int
ipx_ifinit(struct ifnet *ifp, struct ipx_ifaddr *ia,
struct sockaddr_ipx *sipx, int scrub)
{
struct sockaddr_ipx oldaddr;
int error;
/*
* Set up new addresses.
*/
oldaddr = ia->ia_addr;
ia->ia_addr = *sipx;
/*
* The convention we shall adopt for naming is that
* a supplied address of zero means that "we don't care".
* Use the MAC address of the interface. If it is an
* interface without a MAC address, like a serial line, the
* address must be supplied.
*
* Give the interface a chance to initialize
* if this is its first address,
* and to validate the address if necessary.
*/
ifnet_serialize_all(ifp);
if (ifp->if_ioctl != NULL &&
(error = ifp->if_ioctl(ifp, SIOCSIFADDR, (void *)ia, NULL))) {
ia->ia_addr = oldaddr;
ifnet_deserialize_all(ifp);
return (error);
}
ifnet_deserialize_all(ifp);
ia->ia_ifa.ifa_metric = ifp->if_metric;
/*
* Add route for the network.
*/
if (scrub) {
ia->ia_ifa.ifa_addr = (struct sockaddr *)&oldaddr;
ipx_ifscrub(ifp, ia);
ia->ia_ifa.ifa_addr = (struct sockaddr *)&ia->ia_addr;
}
if (ifp->if_flags & IFF_POINTOPOINT)
rtinit(&(ia->ia_ifa), (int)RTM_ADD, RTF_HOST|RTF_UP);
else {
ia->ia_broadaddr.sipx_addr.x_net = ia->ia_addr.sipx_addr.x_net;
rtinit(&(ia->ia_ifa), (int)RTM_ADD, RTF_UP);
}
ia->ia_flags |= IFA_ROUTE;
return (0);
}
int
ifpoll_register(struct ifnet *ifp)
{
struct ifpoll_info *info;
struct netmsg_base nmsg;
int error;
if (ifp->if_npoll == NULL) {
/* Device does not support polling */
return EOPNOTSUPP;
}
info = kmalloc(sizeof(*info), M_TEMP, M_WAITOK | M_ZERO);
/*
* Attempt to register. Interlock with IFF_NPOLLING.
*/
ifnet_serialize_all(ifp);
if (ifp->if_flags & IFF_NPOLLING) {
/* Already polling */
ifnet_deserialize_all(ifp);
kfree(info, M_TEMP);
return EBUSY;
}
info->ifpi_ifp = ifp;
ifp->if_flags |= IFF_NPOLLING;
ifp->if_npoll(ifp, info);
KASSERT(ifp->if_npoll_cpuid >= 0, ("invalid npoll cpuid"));
ifnet_deserialize_all(ifp);
netmsg_init(&nmsg, NULL, &curthread->td_msgport,
0, ifpoll_register_handler);
nmsg.lmsg.u.ms_resultp = info;
error = lwkt_domsg(netisr_portfn(0), &nmsg.lmsg, 0);
if (error) {
if (!ifpoll_deregister(ifp)) {
if_printf(ifp, "ifpoll_register: "
"ifpoll_deregister failed!\n");
}
}
kfree(info, M_TEMP);
return error;
}
/*
* Software interrupt routine, called at spl[soft]net.
*/
static void
pppintr(netmsg_t msg)
{
struct mbuf *m;
struct ppp_softc *sc;
int i;
/*
* Packets are never sent to this netisr so the message must always
* be replied. Interlock processing and notification by replying
* the message first.
*/
lwkt_replymsg(&msg->lmsg, 0);
get_mplock();
sc = ppp_softc;
for (i = 0; i < NPPP; ++i, ++sc) {
ifnet_serialize_all(&sc->sc_if);
if (!(sc->sc_flags & SC_TBUSY)
&& (!ifq_is_empty(&sc->sc_if.if_snd) || !IF_QEMPTY(&sc->sc_fastq))) {
sc->sc_flags |= SC_TBUSY;
(*sc->sc_start)(sc);
}
for (;;) {
IF_DEQUEUE(&sc->sc_rawq, m);
if (m == NULL)
break;
ppp_inproc(sc, m);
}
ifnet_deserialize_all(&sc->sc_if);
}
rel_mplock();
}
/*
* Disable multicast routing
*/
int
ip6_mrouter_done(void)
{
mifi_t mifi;
int i;
struct ifnet *ifp;
struct in6_ifreq ifr;
struct mf6c *rt;
struct rtdetq *rte;
struct lwkt_msg *lmsg = &expire_upcalls_nmsg.lmsg;
ASSERT_NETISR0;
if (ip6_mrouter == NULL)
return EINVAL;
/*
* For each phyint in use, disable promiscuous reception of all IPv6
* multicasts.
*/
#ifdef INET
#ifdef MROUTING
/*
* If there is still IPv4 multicast routing daemon,
* we remain interfaces to receive all muliticasted packets.
* XXX: there may be an interface in which the IPv4 multicast
* daemon is not interested...
*/
if (!ip_mrouter)
#endif
#endif
{
for (mifi = 0; mifi < nummifs; mifi++) {
if (mif6table[mifi].m6_ifp &&
!(mif6table[mifi].m6_flags & MIFF_REGISTER)) {
ifr.ifr_addr.sin6_family = AF_INET6;
ifr.ifr_addr.sin6_addr = kin6addr_any;
ifp = mif6table[mifi].m6_ifp;
ifnet_serialize_all(ifp);
ifp->if_ioctl(ifp, SIOCDELMULTI,
(caddr_t)&ifr, NULL);
ifnet_deserialize_all(ifp);
}
}
}
#ifdef notyet
bzero((caddr_t)qtable, sizeof(qtable));
bzero((caddr_t)tbftable, sizeof(tbftable));
#endif
bzero((caddr_t)mif6table, sizeof(mif6table));
nummifs = 0;
pim6 = 0; /* used to stub out/in pim specific code */
callout_stop(&expire_upcalls_ch);
crit_enter();
if ((lmsg->ms_flags & MSGF_DONE) == 0)
lwkt_dropmsg(lmsg);
crit_exit();
/*
* Free all multicast forwarding cache entries.
*/
for (i = 0; i < MF6CTBLSIZ; i++) {
rt = mf6ctable[i];
while (rt) {
struct mf6c *frt;
for (rte = rt->mf6c_stall; rte != NULL; ) {
struct rtdetq *n = rte->next;
m_freem(rte->m);
kfree(rte, M_MRTABLE);
rte = n;
}
frt = rt;
rt = rt->mf6c_next;
kfree(frt, M_MRTABLE);
}
}
bzero((caddr_t)mf6ctable, sizeof(mf6ctable));
/*
* Reset de-encapsulation cache
*/
reg_mif_num = -1;
ip6_mrouter = NULL;
ip6_mrouter_ver = 0;
#ifdef MRT6DEBUG
if (mrt6debug)
log(LOG_DEBUG, "ip6_mrouter_done\n");
#endif
return 0;
}
/*
* Generic internet control operations (ioctl's).
*/
int
ipx_control_oncpu(struct socket *so, u_long cmd, caddr_t data,
struct ifnet *ifp, struct thread *td)
{
struct ifreq *ifr = (struct ifreq *)data;
struct ipx_aliasreq *ifra = (struct ipx_aliasreq *)data;
struct ipx_ifaddr *ia;
struct ifaddr *ifa;
struct ipx_ifaddr *oia;
int dstIsNew, hostIsNew;
int error = 0;
/*
* Find address for this interface, if it exists.
*/
if (ifp == NULL)
return (EADDRNOTAVAIL);
for (ia = ipx_ifaddr; ia != NULL; ia = ia->ia_next)
if (ia->ia_ifp == ifp)
break;
switch (cmd) {
case SIOCGIFADDR:
if (ia == NULL)
return (EADDRNOTAVAIL);
*(struct sockaddr_ipx *)&ifr->ifr_addr = ia->ia_addr;
return (0);
case SIOCGIFBRDADDR:
if (ia == NULL)
return (EADDRNOTAVAIL);
if ((ifp->if_flags & IFF_BROADCAST) == 0)
return (EINVAL);
*(struct sockaddr_ipx *)&ifr->ifr_dstaddr = ia->ia_broadaddr;
return (0);
case SIOCGIFDSTADDR:
if (ia == NULL)
return (EADDRNOTAVAIL);
if ((ifp->if_flags & IFF_POINTOPOINT) == 0)
return (EINVAL);
*(struct sockaddr_ipx *)&ifr->ifr_dstaddr = ia->ia_dstaddr;
return (0);
}
if ((error = priv_check(td, PRIV_ROOT)) != 0)
return (error);
switch (cmd) {
case SIOCAIFADDR:
case SIOCDIFADDR:
if (ifra->ifra_addr.sipx_family == AF_IPX)
for (oia = ia; ia != NULL; ia = ia->ia_next) {
if (ia->ia_ifp == ifp &&
ipx_neteq(ia->ia_addr.sipx_addr,
ifra->ifra_addr.sipx_addr))
break;
}
if (cmd == SIOCDIFADDR && ia == NULL)
return (EADDRNOTAVAIL);
/* FALLTHROUGH */
case SIOCSIFADDR:
case SIOCSIFDSTADDR:
if (ia == NULL) {
oia = ifa_create(sizeof(*ia), M_WAITOK);
if ((ia = ipx_ifaddr) != NULL) {
for ( ; ia->ia_next != NULL; ia = ia->ia_next)
;
ia->ia_next = oia;
} else
ipx_ifaddr = oia;
ia = oia;
ifa = (struct ifaddr *)ia;
ifa_iflink(ifa, ifp, 1);
ia->ia_ifp = ifp;
ifa->ifa_addr = (struct sockaddr *)&ia->ia_addr;
ifa->ifa_netmask = (struct sockaddr *)&ipx_netmask;
ifa->ifa_dstaddr = (struct sockaddr *)&ia->ia_dstaddr;
if (ifp->if_flags & IFF_BROADCAST) {
ia->ia_broadaddr.sipx_family = AF_IPX;
ia->ia_broadaddr.sipx_len = sizeof(ia->ia_addr);
ia->ia_broadaddr.sipx_addr.x_host = ipx_broadhost;
}
}
}
switch (cmd) {
case SIOCSIFDSTADDR:
if ((ifp->if_flags & IFF_POINTOPOINT) == 0)
return (EINVAL);
if (ia->ia_flags & IFA_ROUTE) {
rtinit(&(ia->ia_ifa), (int)RTM_DELETE, RTF_HOST);
ia->ia_flags &= ~IFA_ROUTE;
}
if (ifp->if_ioctl) {
ifnet_serialize_all(ifp);
error = ifp->if_ioctl(ifp, SIOCSIFDSTADDR,
(void *)ia, td->td_proc->p_ucred);
ifnet_deserialize_all(ifp);
if (error)
return (error);
}
*(struct sockaddr *)&ia->ia_dstaddr = ifr->ifr_dstaddr;
return (0);
case SIOCSIFADDR:
return (ipx_ifinit(ifp, ia,
(struct sockaddr_ipx *)&ifr->ifr_addr, 1));
case SIOCDIFADDR:
ipx_ifscrub(ifp, ia);
ifa = (struct ifaddr *)ia;
ifa_ifunlink(ifa, ifp);
oia = ia;
if (oia == (ia = ipx_ifaddr)) {
ipx_ifaddr = ia->ia_next;
} else {
while (ia->ia_next && (ia->ia_next != oia)) {
ia = ia->ia_next;
}
if (ia->ia_next)
ia->ia_next = oia->ia_next;
else
kprintf("Didn't unlink ipxifadr from list\n");
}
ifa_destroy(&oia->ia_ifa);
return (0);
case SIOCAIFADDR:
dstIsNew = 0;
hostIsNew = 1;
if (ia->ia_addr.sipx_family == AF_IPX) {
if (ifra->ifra_addr.sipx_len == 0) {
ifra->ifra_addr = ia->ia_addr;
hostIsNew = 0;
} else if (ipx_neteq(ifra->ifra_addr.sipx_addr,
ia->ia_addr.sipx_addr))
hostIsNew = 0;
}
if ((ifp->if_flags & IFF_POINTOPOINT) &&
(ifra->ifra_dstaddr.sipx_family == AF_IPX)) {
if (hostIsNew == 0)
ipx_ifscrub(ifp, ia);
ia->ia_dstaddr = ifra->ifra_dstaddr;
dstIsNew = 1;
}
if (ifra->ifra_addr.sipx_family == AF_IPX &&
(hostIsNew || dstIsNew))
error = ipx_ifinit(ifp, ia, &ifra->ifra_addr, 0);
return (error);
default:
if (ifp->if_ioctl == NULL)
return (EOPNOTSUPP);
ifnet_serialize_all(ifp);
error = ifp->if_ioctl(ifp, cmd, data, td->td_proc->p_ucred);
ifnet_deserialize_all(ifp);
return (error);
}
}
int
at_control(struct socket *so, u_long cmd, caddr_t data,
struct ifnet *ifp, struct thread *td )
{
struct ifreq *ifr = (struct ifreq *)data;
struct sockaddr_at *sat;
struct netrange *nr;
struct at_aliasreq *ifra = (struct at_aliasreq *)data;
struct at_ifaddr *aa0;
struct at_ifaddr *aa = 0;
struct ifaddr *ifa, *ifa0;
int error;
/*
* If we have an ifp, then find the matching at_ifaddr if it exists
*/
if ( ifp ) {
for ( aa = at_ifaddr; aa; aa = aa->aa_next ) {
if ( aa->aa_ifp == ifp ) break;
}
}
/*
* In this first switch table we are basically getting ready for
* the second one, by getting the atalk-specific things set up
* so that they start to look more similar to other protocols etc.
*/
switch ( cmd ) {
case SIOCAIFADDR:
case SIOCDIFADDR:
/*
* If we have an appletalk sockaddr, scan forward of where
* we are now on the at_ifaddr list to find one with a matching
* address on this interface.
* This may leave aa pointing to the first address on the
* NEXT interface!
*/
if ( ifra->ifra_addr.sat_family == AF_APPLETALK ) {
for ( ; aa; aa = aa->aa_next ) {
if ( aa->aa_ifp == ifp &&
sateqaddr( &aa->aa_addr, &ifra->ifra_addr )) {
break;
}
}
}
/*
* If we a retrying to delete an addres but didn't find such,
* then rewurn with an error
*/
if ( cmd == SIOCDIFADDR && aa == 0 ) {
return( EADDRNOTAVAIL );
}
/*FALLTHROUGH*/
case SIOCSIFADDR:
/*
* If we are not superuser, then we don't get to do these ops.
*/
if (priv_check(td, PRIV_ROOT))
return(EPERM);
sat = satosat( &ifr->ifr_addr );
nr = (struct netrange *)sat->sat_zero;
if ( nr->nr_phase == 1 ) {
/*
* Look for a phase 1 address on this interface.
* This may leave aa pointing to the first address on the
* NEXT interface!
*/
for ( ; aa; aa = aa->aa_next ) {
if ( aa->aa_ifp == ifp &&
( aa->aa_flags & AFA_PHASE2 ) == 0 ) {
break;
}
}
} else { /* default to phase 2 */
/*
* Look for a phase 2 address on this interface.
* This may leave aa pointing to the first address on the
* NEXT interface!
*/
for ( ; aa; aa = aa->aa_next ) {
if ( aa->aa_ifp == ifp && ( aa->aa_flags & AFA_PHASE2 )) {
break;
}
}
}
if ( ifp == 0 )
panic( "at_control" );
/*
* If we failed to find an existing at_ifaddr entry, then we
* allocate a fresh one.
*/
if ( aa == NULL ) {
aa0 = ifa_create(sizeof(struct at_ifaddr), M_WAITOK);
callout_init(&aa0->aa_ch);
if (( aa = at_ifaddr ) != NULL ) {
/*
* Don't let the loopback be first, since the first
* address is the machine's default address for
* binding.
* If it is, stick ourself in front, otherwise
* go to the back of the list.
*/
if ( at_ifaddr->aa_ifp->if_flags & IFF_LOOPBACK ) {
aa = aa0;
aa->aa_next = at_ifaddr;
at_ifaddr = aa;
} else {
for ( ; aa->aa_next; aa = aa->aa_next )
;
aa->aa_next = aa0;
}
} else {
at_ifaddr = aa0;
}
aa = aa0;
/*
* Find the end of the interface's addresses
* and link our new one on the end
*/
ifa = (struct ifaddr *)aa;
ifa_iflink(ifa, ifp, 1);
/*
* As the at_ifaddr contains the actual sockaddrs,
* and the ifaddr itself, link them al together correctly.
*/
ifa->ifa_addr = (struct sockaddr *)&aa->aa_addr;
ifa->ifa_dstaddr = (struct sockaddr *)&aa->aa_addr;
ifa->ifa_netmask = (struct sockaddr *)&aa->aa_netmask;
/*
* Set/clear the phase 2 bit.
*/
if ( nr->nr_phase == 1 ) {
aa->aa_flags &= ~AFA_PHASE2;
} else {
aa->aa_flags |= AFA_PHASE2;
}
/*
* and link it all together
*/
aa->aa_ifp = ifp;
} else {
/*
* If we DID find one then we clobber any routes dependent on it..
*/
at_scrub( ifp, aa );
}
break;
case SIOCGIFADDR :
sat = satosat( &ifr->ifr_addr );
nr = (struct netrange *)sat->sat_zero;
if ( nr->nr_phase == 1 ) {
/*
* If the request is specifying phase 1, then
* only look at a phase one address
*/
for ( ; aa; aa = aa->aa_next ) {
if ( aa->aa_ifp == ifp &&
( aa->aa_flags & AFA_PHASE2 ) == 0 ) {
break;
}
}
} else {
/*
* default to phase 2
*/
for ( ; aa; aa = aa->aa_next ) {
if ( aa->aa_ifp == ifp && ( aa->aa_flags & AFA_PHASE2 )) {
break;
}
}
}
if ( aa == NULL )
return( EADDRNOTAVAIL );
break;
}
/*
* By the time this switch is run we should be able to assume that
* the "aa" pointer is valid when needed.
*/
switch ( cmd ) {
case SIOCGIFADDR:
/*
* copy the contents of the sockaddr blindly.
*/
sat = (struct sockaddr_at *)&ifr->ifr_addr;
*sat = aa->aa_addr;
/*
* and do some cleanups
*/
((struct netrange *)&sat->sat_zero)->nr_phase
= (aa->aa_flags & AFA_PHASE2) ? 2 : 1;
((struct netrange *)&sat->sat_zero)->nr_firstnet = aa->aa_firstnet;
((struct netrange *)&sat->sat_zero)->nr_lastnet = aa->aa_lastnet;
break;
case SIOCSIFADDR:
return( at_ifinit( ifp, aa, (struct sockaddr_at *)&ifr->ifr_addr ));
case SIOCAIFADDR:
if ( sateqaddr( &ifra->ifra_addr, &aa->aa_addr )) {
return( 0 );
}
return( at_ifinit( ifp, aa, (struct sockaddr_at *)&ifr->ifr_addr ));
case SIOCDIFADDR:
/*
* scrub all routes.. didn't we just DO this? XXX yes, del it
*/
at_scrub( ifp, aa );
/*
* remove the ifaddr from the interface
*/
ifa0 = (struct ifaddr *)aa;
ifa_ifunlink(ifa0, ifp);
/*
* Now remove the at_ifaddr from the parallel structure
* as well, or we'd be in deep trouble
*/
aa0 = aa;
if ( aa0 == ( aa = at_ifaddr )) {
at_ifaddr = aa->aa_next;
} else {
while ( aa->aa_next && ( aa->aa_next != aa0 )) {
aa = aa->aa_next;
}
/*
* if we found it, remove it, otherwise we screwed up.
*/
if ( aa->aa_next ) {
aa->aa_next = aa0->aa_next;
} else {
panic( "at_control" );
}
}
/*
* Now dump the memory we were using.
* Decrement the reference count.
* This should probably be the last reference
* as the count will go from 1 to 0.
* (unless there is still a route referencing this)
*/
ifa_destroy(ifa0);
break;
default:
if ( ifp == 0 || ifp->if_ioctl == 0 )
return( EOPNOTSUPP );
ifnet_serialize_all(ifp);
error = ifp->if_ioctl(ifp, cmd, data, td->td_proc->p_ucred);
ifnet_deserialize_all(ifp);
return (error);
}
return( 0 );
}
/*
* given an at_ifaddr,a sockaddr_at and an ifp,
* bang them all together at high speed and see what happens
*/
static int
at_ifinit(struct ifnet *ifp, struct at_ifaddr *aa, struct sockaddr_at *sat)
{
struct netrange nr, onr;
struct sockaddr_at oldaddr;
int error = 0, i, j;
int netinc, nodeinc, nnets;
u_short net;
crit_enter();
/*
* save the old addresses in the at_ifaddr just in case we need them.
*/
oldaddr = aa->aa_addr;
onr.nr_firstnet = aa->aa_firstnet;
onr.nr_lastnet = aa->aa_lastnet;
/*
* take the address supplied as an argument, and add it to the
* at_ifnet (also given). Remember ing to update
* those parts of the at_ifaddr that need special processing
*/
bzero( AA_SAT( aa ), sizeof( struct sockaddr_at ));
bcopy( sat->sat_zero, &nr, sizeof( struct netrange ));
bcopy( sat->sat_zero, AA_SAT( aa )->sat_zero, sizeof( struct netrange ));
nnets = ntohs( nr.nr_lastnet ) - ntohs( nr.nr_firstnet ) + 1;
aa->aa_firstnet = nr.nr_firstnet;
aa->aa_lastnet = nr.nr_lastnet;
/* XXX ALC */
#if 0
kprintf("at_ifinit: %s: %u.%u range %u-%u phase %d\n",
ifp->if_name,
ntohs(sat->sat_addr.s_net), sat->sat_addr.s_node,
ntohs(aa->aa_firstnet), ntohs(aa->aa_lastnet),
(aa->aa_flags & AFA_PHASE2) ? 2 : 1);
#endif
/*
* We could eliminate the need for a second phase 1 probe (post
* autoconf) if we check whether we're resetting the node. Note
* that phase 1 probes use only nodes, not net.node pairs. Under
* phase 2, both the net and node must be the same.
*/
if ( ifp->if_flags & IFF_LOOPBACK ) {
AA_SAT( aa )->sat_len = sat->sat_len;
AA_SAT( aa )->sat_family = AF_APPLETALK;
AA_SAT( aa )->sat_addr.s_net = sat->sat_addr.s_net;
AA_SAT( aa )->sat_addr.s_node = sat->sat_addr.s_node;
#if 0
} else if ( fp->if_flags & IFF_POINTOPOINT) {
/* unimplemented */
/*
* we'd have to copy the dstaddr field over from the sat
* but it's not clear that it would contain the right info..
*/
#endif
} else {
/*
* We are a normal (probably ethernet) interface.
* apply the new address to the interface structures etc.
* We will probe this address on the net first, before
* applying it to ensure that it is free.. If it is not, then
* we will try a number of other randomly generated addresses
* in this net and then increment the net. etc.etc. until
* we find an unused address.
*/
aa->aa_flags |= AFA_PROBING; /* if not loopback we Must probe? */
AA_SAT( aa )->sat_len = sizeof(struct sockaddr_at);
AA_SAT( aa )->sat_family = AF_APPLETALK;
if ( aa->aa_flags & AFA_PHASE2 ) {
if ( sat->sat_addr.s_net == ATADDR_ANYNET ) {
/*
* If we are phase 2, and the net was not specified
* then we select a random net within the supplied netrange.
* XXX use /dev/random?
*/
if ( nnets != 1 ) {
net = ntohs( nr.nr_firstnet ) + time_second % ( nnets - 1 );
} else {
net = ntohs( nr.nr_firstnet );
}
} else {
/*
* if a net was supplied, then check that it is within
* the netrange. If it is not then replace the old values
* and return an error
*/
if ( ntohs( sat->sat_addr.s_net ) < ntohs( nr.nr_firstnet ) ||
ntohs( sat->sat_addr.s_net ) > ntohs( nr.nr_lastnet )) {
aa->aa_addr = oldaddr;
aa->aa_firstnet = onr.nr_firstnet;
aa->aa_lastnet = onr.nr_lastnet;
crit_exit();
return( EINVAL );
}
/*
* otherwise just use the new net number..
*/
net = ntohs( sat->sat_addr.s_net );
}
} else {
/*
* we must be phase one, so just use whatever we were given.
* I guess it really isn't going to be used... RIGHT?
*/
net = ntohs( sat->sat_addr.s_net );
}
/*
* set the node part of the address into the ifaddr.
* If it's not specified, be random about it...
* XXX use /dev/random?
*/
if ( sat->sat_addr.s_node == ATADDR_ANYNODE ) {
AA_SAT( aa )->sat_addr.s_node = time_second;
} else {
AA_SAT( aa )->sat_addr.s_node = sat->sat_addr.s_node;
}
/*
* Copy the phase.
*/
AA_SAT( aa )->sat_range.r_netrange.nr_phase
= ((aa->aa_flags & AFA_PHASE2) ? 2:1);
/*
* step through the nets in the range
* starting at the (possibly random) start point.
*/
for ( i = nnets, netinc = 1; i > 0; net = ntohs( nr.nr_firstnet ) +
(( net - ntohs( nr.nr_firstnet ) + netinc ) % nnets ), i-- ) {
AA_SAT( aa )->sat_addr.s_net = htons( net );
/*
* using a rather strange stepping method,
* stagger through the possible node addresses
* Once again, starting at the (possibly random)
* initial node address.
*/
for ( j = 0, nodeinc = time_second | 1; j < 256;
j++, AA_SAT( aa )->sat_addr.s_node += nodeinc ) {
if ( AA_SAT( aa )->sat_addr.s_node > 253 ||
AA_SAT( aa )->sat_addr.s_node < 1 ) {
continue;
}
aa->aa_probcnt = 10;
/*
* start off the probes as an asynchronous activity.
* though why wait 200mSec?
*/
callout_reset(&aa->aa_ch, hz / 5, aarpprobe, ifp);
if ( tsleep( aa, PCATCH, "at_ifinit", 0 )) {
/*
* theoretically we shouldn't time out here
* so if we returned with an error..
*/
kprintf( "at_ifinit: why did this happen?!\n" );
aa->aa_addr = oldaddr;
aa->aa_firstnet = onr.nr_firstnet;
aa->aa_lastnet = onr.nr_lastnet;
crit_exit();
return( EINTR );
}
/*
* The async activity should have woken us up.
* We need to see if it was successful in finding
* a free spot, or if we need to iterate to the next
* address to try.
*/
if (( aa->aa_flags & AFA_PROBING ) == 0 ) {
break;
}
}
/*
* of course we need to break out through two loops...
*/
if (( aa->aa_flags & AFA_PROBING ) == 0 ) {
break;
}
/* reset node for next network */
AA_SAT( aa )->sat_addr.s_node = time_second;
}
/*
* if we are still trying to probe, then we have finished all
* the possible addresses, so we need to give up
*/
if ( aa->aa_flags & AFA_PROBING ) {
aa->aa_addr = oldaddr;
aa->aa_firstnet = onr.nr_firstnet;
aa->aa_lastnet = onr.nr_lastnet;
crit_exit();
return( EADDRINUSE );
}
}
/*
* Now that we have selected an address, we need to tell the interface
* about it, just in case it needs to adjust something.
*/
ifnet_serialize_all(ifp);
if (ifp->if_ioctl &&
(error = ifp->if_ioctl(ifp, SIOCSIFADDR, (caddr_t)aa, NULL))
) {
/*
* of course this could mean that it objects violently
* so if it does, we back out again..
*/
aa->aa_addr = oldaddr;
aa->aa_firstnet = onr.nr_firstnet;
aa->aa_lastnet = onr.nr_lastnet;
ifnet_deserialize_all(ifp);
crit_exit();
return( error );
}
ifnet_deserialize_all(ifp);
/*
* set up the netmask part of the at_ifaddr
* and point the appropriate pointer in the ifaddr to it.
* probably pointless, but what the heck.. XXX
*/
bzero(&aa->aa_netmask, sizeof(aa->aa_netmask));
aa->aa_netmask.sat_len = sizeof(struct sockaddr_at);
aa->aa_netmask.sat_family = AF_APPLETALK;
aa->aa_netmask.sat_addr.s_net = 0xffff;
aa->aa_netmask.sat_addr.s_node = 0;
aa->aa_ifa.ifa_netmask =(struct sockaddr *) &(aa->aa_netmask); /* XXX */
/*
* Initialize broadcast (or remote p2p) address
*/
bzero(&aa->aa_broadaddr, sizeof(aa->aa_broadaddr));
aa->aa_broadaddr.sat_len = sizeof(struct sockaddr_at);
aa->aa_broadaddr.sat_family = AF_APPLETALK;
aa->aa_ifa.ifa_metric = ifp->if_metric;
if (ifp->if_flags & IFF_BROADCAST) {
aa->aa_broadaddr.sat_addr.s_net = htons(0);
aa->aa_broadaddr.sat_addr.s_node = 0xff;
aa->aa_ifa.ifa_broadaddr = (struct sockaddr *) &aa->aa_broadaddr;
/* add the range of routes needed */
error = aa_dorangeroute(&aa->aa_ifa,
ntohs(aa->aa_firstnet), ntohs(aa->aa_lastnet), RTM_ADD );
}
else if (ifp->if_flags & IFF_POINTOPOINT) {
struct at_addr rtaddr, rtmask;
bzero(&rtaddr, sizeof(rtaddr));
bzero(&rtmask, sizeof(rtmask));
/* fill in the far end if we know it here XXX */
aa->aa_ifa.ifa_dstaddr = (struct sockaddr *) &aa->aa_dstaddr;
error = aa_addsingleroute(&aa->aa_ifa, &rtaddr, &rtmask);
}
else if ( ifp->if_flags & IFF_LOOPBACK ) {
struct at_addr rtaddr, rtmask;
bzero(&rtaddr, sizeof(rtaddr));
bzero(&rtmask, sizeof(rtmask));
rtaddr.s_net = AA_SAT( aa )->sat_addr.s_net;
rtaddr.s_node = AA_SAT( aa )->sat_addr.s_node;
rtmask.s_net = 0xffff;
rtmask.s_node = 0x0; /* XXX should not be so.. should be HOST route */
error = aa_addsingleroute(&aa->aa_ifa, &rtaddr, &rtmask);
}
/*
* set the address of our "check if this addr is ours" routine.
*/
aa->aa_ifa.ifa_claim_addr = aa_claim_addr;
/*
* of course if we can't add these routes we back out, but it's getting
* risky by now XXX
*/
if ( error ) {
at_scrub( ifp, aa );
aa->aa_addr = oldaddr;
aa->aa_firstnet = onr.nr_firstnet;
aa->aa_lastnet = onr.nr_lastnet;
crit_exit();
return( error );
}
/*
* note that the address has a route associated with it....
*/
aa->aa_ifa.ifa_flags |= IFA_ROUTE;
aa->aa_flags |= AFA_ROUTE;
crit_exit();
return( 0 );
}
/*
* atm_rtrequest: handle ATM rt request (in support of generic code)
* inputs: "req" = request code
* "rt" = route entry
* "info" = rt_addrinfo
*/
void
atm_rtrequest(int req, struct rtentry *rt, struct rt_addrinfo *info)
{
struct sockaddr *gate = rt->rt_gateway;
struct atm_pseudoioctl api;
#ifdef NATM
struct sockaddr_in *sin;
struct natmpcb *npcb = NULL;
struct atm_pseudohdr *aph;
#endif
static struct sockaddr_dl null_sdl = {sizeof(null_sdl), AF_LINK};
int error;
if (rt->rt_flags & RTF_GATEWAY) /* link level requests only */
return;
switch (req) {
case RTM_RESOLVE: /* resolve: only happens when cloning */
kprintf("atm_rtrequest: RTM_RESOLVE request detected?\n");
break;
case RTM_ADD:
/*
* route added by a command (e.g. ifconfig, route, arp...).
*
* first check to see if this is not a host route, in which
* case we are being called via "ifconfig" to set the address.
*/
if ((rt->rt_flags & RTF_HOST) == 0) {
rt_setgate(rt,rt_key(rt),(struct sockaddr *)&null_sdl,
RTL_DONTREPORT);
gate = rt->rt_gateway;
SDL(gate)->sdl_type = rt->rt_ifp->if_type;
SDL(gate)->sdl_index = rt->rt_ifp->if_index;
break;
}
if ((rt->rt_flags & RTF_CLONING) != 0) {
kprintf("atm_rtrequest: cloning route detected?\n");
break;
}
if (gate->sa_family != AF_LINK ||
gate->sa_len < sizeof(null_sdl)) {
log(LOG_DEBUG, "atm_rtrequest: bad gateway value");
break;
}
#ifdef DIAGNOSTIC
if (rt->rt_ifp->if_ioctl == NULL) panic("atm null ioctl");
#endif
#ifdef NATM
/*
* let native ATM know we are using this VCI/VPI
* (i.e. reserve it)
*/
sin = (struct sockaddr_in *) rt_key(rt);
if (sin->sin_family != AF_INET)
goto failed;
aph = (struct atm_pseudohdr *) LLADDR(SDL(gate));
npcb = npcb_add(NULL, rt->rt_ifp, ATM_PH_VCI(aph),
ATM_PH_VPI(aph));
if (npcb == NULL)
goto failed;
npcb->npcb_flags |= NPCB_IP;
npcb->ipaddr.s_addr = sin->sin_addr.s_addr;
/* XXX: move npcb to llinfo when ATM ARP is ready */
rt->rt_llinfo = npcb;
rt->rt_flags |= RTF_LLINFO;
#endif
/*
* let the lower level know this circuit is active
*/
bcopy(LLADDR(SDL(gate)), &api.aph, sizeof(api.aph));
api.rxhand = NULL;
ifnet_serialize_all(rt->rt_ifp);
error = rt->rt_ifp->if_ioctl(rt->rt_ifp, SIOCATMENA,
(caddr_t)&api, NULL);
ifnet_deserialize_all(rt->rt_ifp);
if (error) {
kprintf("atm: couldn't add VC\n");
goto failed;
}
SDL(gate)->sdl_type = rt->rt_ifp->if_type;
SDL(gate)->sdl_index = rt->rt_ifp->if_index;
break;
failed:
#ifdef NATM
if (npcb) {
npcb_free(npcb, NPCB_DESTROY);
rt->rt_llinfo = NULL;
rt->rt_flags &= ~RTF_LLINFO;
}
#endif
rtrequest(RTM_DELETE, rt_key(rt), NULL,
rt_mask(rt), 0, NULL);
break;
case RTM_DELETE:
#ifdef NATM
/*
* tell native ATM we are done with this VC
*/
if (rt->rt_flags & RTF_LLINFO) {
npcb_free(rt->rt_llinfo, NPCB_DESTROY);
rt->rt_llinfo = NULL;
rt->rt_flags &= ~RTF_LLINFO;
}
#endif
/*
* tell the lower layer to disable this circuit
*/
bcopy(LLADDR(SDL(gate)), &api.aph, sizeof(api.aph));
api.rxhand = NULL;
ifnet_serialize_all(rt->rt_ifp);
rt->rt_ifp->if_ioctl(rt->rt_ifp, SIOCATMDIS, (caddr_t)&api,
NULL);
ifnet_deserialize_all(rt->rt_ifp);
break;
}
}
