ipfpoll(dev_t dev, int events, struct proc *td)
#endif
{
int unit = GET_MINOR(dev);
int revents;
if (unit < 0 || unit > IPL_LOGMAX)
return 0;
revents = 0;
CURVNET_SET(TD_TO_VNET(td));
switch (unit)
{
case IPL_LOGIPF :
case IPL_LOGNAT :
case IPL_LOGSTATE :
#ifdef IPFILTER_LOG
if ((events & (POLLIN | POLLRDNORM)) && ipf_log_canread(&V_ipfmain, unit))
revents |= events & (POLLIN | POLLRDNORM);
#endif
break;
case IPL_LOGAUTH :
if ((events & (POLLIN | POLLRDNORM)) && ipf_auth_waiting(&V_ipfmain))
revents |= events & (POLLIN | POLLRDNORM);
break;
case IPL_LOGSYNC :
if ((events & (POLLIN | POLLRDNORM)) && ipf_sync_canread(&V_ipfmain))
revents |= events & (POLLIN | POLLRDNORM);
if ((events & (POLLOUT | POLLWRNORM)) && ipf_sync_canwrite(&V_ipfmain))
revents |= events & (POLLOUT | POLLWRNORM);
break;
case IPL_LOGSCAN :
case IPL_LOGLOOKUP :
default :
break;
}
if ((revents == 0) && ((events & (POLLIN|POLLRDNORM)) != 0))
selrecord(td, &V_ipfmain.ipf_selwait[unit]);
CURVNET_RESTORE();
return revents;
}
void
bootpc_init(void)
{
struct bootpc_ifcontext *ifctx, *nctx; /* Interface BOOTP contexts */
struct bootpc_globalcontext *gctx; /* Global BOOTP context */
struct ifnet *ifp;
int error;
#ifndef BOOTP_WIRED_TO
int ifcnt;
#endif
struct nfsv3_diskless *nd;
struct thread *td;
nd = &nfsv3_diskless;
td = curthread;
/*
* If already filled in, don't touch it here
*/
if (nfs_diskless_valid != 0)
return;
gctx = malloc(sizeof(*gctx), M_TEMP, M_WAITOK | M_ZERO);
if (gctx == NULL)
panic("Failed to allocate bootp global context structure");
gctx->xid = ~0xFFFF;
gctx->starttime = time_second;
/*
* Find a network interface.
*/
CURVNET_SET(TD_TO_VNET(td));
#ifdef BOOTP_WIRED_TO
printf("bootpc_init: wired to interface '%s'\n",
__XSTRING(BOOTP_WIRED_TO));
allocifctx(gctx);
#else
/*
* Preallocate interface context storage, if another interface
* attaches and wins the race, it won't be eligible for bootp.
*/
IFNET_RLOCK();
for (ifp = TAILQ_FIRST(&V_ifnet), ifcnt = 0;
ifp != NULL;
ifp = TAILQ_NEXT(ifp, if_link)) {
if ((ifp->if_flags &
(IFF_LOOPBACK | IFF_POINTOPOINT | IFF_BROADCAST)) !=
IFF_BROADCAST)
continue;
ifcnt++;
}
IFNET_RUNLOCK();
if (ifcnt == 0)
panic("bootpc_init: no eligible interfaces");
for (; ifcnt > 0; ifcnt--)
allocifctx(gctx);
#endif
IFNET_RLOCK();
for (ifp = TAILQ_FIRST(&V_ifnet), ifctx = gctx->interfaces;
ifp != NULL && ifctx != NULL;
ifp = TAILQ_NEXT(ifp, if_link)) {
strlcpy(ifctx->ireq.ifr_name, ifp->if_xname,
sizeof(ifctx->ireq.ifr_name));
#ifdef BOOTP_WIRED_TO
if (strcmp(ifctx->ireq.ifr_name,
__XSTRING(BOOTP_WIRED_TO)) != 0)
continue;
#else
if ((ifp->if_flags &
(IFF_LOOPBACK | IFF_POINTOPOINT | IFF_BROADCAST)) !=
IFF_BROADCAST)
continue;
#endif
ifctx->ifp = ifp;
ifctx = ifctx->next;
}
IFNET_RUNLOCK();
CURVNET_RESTORE();
if (gctx->interfaces == NULL || gctx->interfaces->ifp == NULL) {
#ifdef BOOTP_WIRED_TO
panic("bootpc_init: Could not find interface specified "
"by BOOTP_WIRED_TO: "
__XSTRING(BOOTP_WIRED_TO));
#else
panic("bootpc_init: no suitable interface");
#endif
}
for (ifctx = gctx->interfaces; ifctx != NULL; ifctx = ifctx->next)
bootpc_fakeup_interface(ifctx, gctx, td);
for (ifctx = gctx->interfaces; ifctx != NULL; ifctx = ifctx->next)
bootpc_compose_query(ifctx, gctx, td);
error = bootpc_call(gctx, td);
if (error != 0) {
#ifdef BOOTP_NFSROOT
panic("BOOTP call failed");
#else
printf("BOOTP call failed\n");
#endif
}
rootdevnames[0] = "nfs:";
#ifdef NFSCLIENT
rootdevnames[1] = "oldnfs:";
#endif
mountopts(&nd->root_args, NULL);
for (ifctx = gctx->interfaces; ifctx != NULL; ifctx = ifctx->next)
if (bootpc_ifctx_isresolved(ifctx) != 0)
bootpc_decode_reply(nd, ifctx, gctx);
#ifdef BOOTP_NFSROOT
if (gctx->gotrootpath == 0)
panic("bootpc: No root path offered");
#endif
for (ifctx = gctx->interfaces; ifctx != NULL; ifctx = ifctx->next) {
bootpc_adjust_interface(ifctx, gctx, td);
soclose(ifctx->so);
}
for (ifctx = gctx->interfaces; ifctx != NULL; ifctx = ifctx->next)
if (ifctx->gotrootpath != 0)
break;
if (ifctx == NULL) {
for (ifctx = gctx->interfaces;
ifctx != NULL;
ifctx = ifctx->next)
if (bootpc_ifctx_isresolved(ifctx) != 0)
break;
}
if (ifctx == NULL)
goto out;
if (gctx->gotrootpath != 0) {
setenv("boot.netif.name", ifctx->ifp->if_xname);
error = md_mount(&nd->root_saddr, nd->root_hostnam,
nd->root_fh, &nd->root_fhsize,
&nd->root_args, td);
if (error != 0)
panic("nfs_boot: mountd root, error=%d", error);
nfs_diskless_valid = 3;
}
strcpy(nd->myif.ifra_name, ifctx->ireq.ifr_name);
bcopy(&ifctx->myaddr, &nd->myif.ifra_addr, sizeof(ifctx->myaddr));
bcopy(&ifctx->myaddr, &nd->myif.ifra_broadaddr, sizeof(ifctx->myaddr));
((struct sockaddr_in *) &nd->myif.ifra_broadaddr)->sin_addr.s_addr =
ifctx->myaddr.sin_addr.s_addr |
~ ifctx->netmask.sin_addr.s_addr;
bcopy(&ifctx->netmask, &nd->myif.ifra_mask, sizeof(ifctx->netmask));
out:
for (ifctx = gctx->interfaces; ifctx != NULL; ifctx = nctx) {
nctx = ifctx->next;
free(ifctx, M_TEMP);
}
free(gctx, M_TEMP);
}
/*
* Mount a remote root fs via. nfs. This depends on the info in the
* nfs_diskless structure that has been filled in properly by some primary
* bootstrap.
* It goes something like this:
* - do enough of "ifconfig" by calling ifioctl() so that the system
* can talk to the server
* - If nfs_diskless.mygateway is filled in, use that address as
* a default gateway.
* - build the rootfs mount point and call mountnfs() to do the rest.
*
* It is assumed to be safe to read, modify, and write the nfsv3_diskless
* structure, as well as other global NFS client variables here, as
* nfs_mountroot() will be called once in the boot before any other NFS
* client activity occurs.
*/
int
nfs_mountroot(struct mount *mp)
{
struct thread *td = curthread;
struct nfsv3_diskless *nd = &nfsv3_diskless;
struct socket *so;
struct vnode *vp;
struct ifreq ir;
int error;
u_long l;
char buf[128];
char *cp;
#if defined(BOOTP_NFSROOT) && defined(BOOTP)
bootpc_init(); /* use bootp to get nfs_diskless filled in */
#elif defined(NFS_ROOT)
nfs_setup_diskless();
#endif
if (nfs_diskless_valid == 0) {
return (-1);
}
if (nfs_diskless_valid == 1)
nfs_convert_diskless();
/*
* XXX splnet, so networks will receive...
*/
splnet();
/*
* Do enough of ifconfig(8) so that the critical net interface can
* talk to the server.
*/
error = socreate(nd->myif.ifra_addr.sa_family, &so, nd->root_args.sotype, 0,
td->td_ucred, td);
if (error)
panic("nfs_mountroot: socreate(%04x): %d",
nd->myif.ifra_addr.sa_family, error);
#if 0 /* XXX Bad idea */
/*
* We might not have been told the right interface, so we pass
* over the first ten interfaces of the same kind, until we get
* one of them configured.
*/
for (i = strlen(nd->myif.ifra_name) - 1;
nd->myif.ifra_name[i] >= '0' &&
nd->myif.ifra_name[i] <= '9';
nd->myif.ifra_name[i] ++) {
error = ifioctl(so, SIOCAIFADDR, (caddr_t)&nd->myif, td);
if(!error)
break;
}
#endif
error = ifioctl(so, SIOCAIFADDR, (caddr_t)&nd->myif, td);
if (error)
panic("nfs_mountroot: SIOCAIFADDR: %d", error);
if ((cp = getenv("boot.netif.mtu")) != NULL) {
ir.ifr_mtu = strtol(cp, NULL, 10);
bcopy(nd->myif.ifra_name, ir.ifr_name, IFNAMSIZ);
freeenv(cp);
error = ifioctl(so, SIOCSIFMTU, (caddr_t)&ir, td);
if (error)
printf("nfs_mountroot: SIOCSIFMTU: %d", error);
}
soclose(so);
/*
* If the gateway field is filled in, set it as the default route.
* Note that pxeboot will set a default route of 0 if the route
* is not set by the DHCP server. Check also for a value of 0
* to avoid panicking inappropriately in that situation.
*/
if (nd->mygateway.sin_len != 0 &&
nd->mygateway.sin_addr.s_addr != 0) {
struct sockaddr_in mask, sin;
bzero((caddr_t)&mask, sizeof(mask));
sin = mask;
sin.sin_family = AF_INET;
sin.sin_len = sizeof(sin);
/* XXX MRT use table 0 for this sort of thing */
CURVNET_SET(TD_TO_VNET(td));
error = rtrequest_fib(RTM_ADD, (struct sockaddr *)&sin,
(struct sockaddr *)&nd->mygateway,
(struct sockaddr *)&mask,
RTF_UP | RTF_GATEWAY, NULL, RT_DEFAULT_FIB);
CURVNET_RESTORE();
if (error)
panic("nfs_mountroot: RTM_ADD: %d", error);
}
/*
* Create the rootfs mount point.
*/
nd->root_args.fh = nd->root_fh;
nd->root_args.fhsize = nd->root_fhsize;
l = ntohl(nd->root_saddr.sin_addr.s_addr);
snprintf(buf, sizeof(buf), "%ld.%ld.%ld.%ld:%s",
(l >> 24) & 0xff, (l >> 16) & 0xff,
(l >> 8) & 0xff, (l >> 0) & 0xff, nd->root_hostnam);
printf("NFS ROOT: %s\n", buf);
nd->root_args.hostname = buf;
if ((error = nfs_mountdiskless(buf,
&nd->root_saddr, &nd->root_args, td, &vp, mp)) != 0) {
return (error);
}
/*
* This is not really an nfs issue, but it is much easier to
* set hostname here and then let the "/etc/rc.xxx" files
* mount the right /var based upon its preset value.
*/
mtx_lock(&prison0.pr_mtx);
strlcpy(prison0.pr_hostname, nd->my_hostnam,
sizeof (prison0.pr_hostname));
mtx_unlock(&prison0.pr_mtx);
inittodr(ntohl(nd->root_time));
return (0);
}
