void
callout_tick(void)
{
struct callout_cpu *cc;
int need_softclock;
int bucket;
/*
* Process callouts at a very low cpu priority, so we don't keep the
* relatively high clock interrupt priority any longer than necessary.
*/
need_softclock = 0;
cc = CC_SELF();
mtx_lock_spin_flags(&cc->cc_lock, MTX_QUIET);
cc->cc_firsttick = cc->cc_ticks = V_ticks;
for (; (cc->cc_softticks - cc->cc_ticks) <= 0; cc->cc_softticks++) {
bucket = cc->cc_softticks & callwheelmask;
if (!BSD_TAILQ_EMPTY(&cc->cc_callwheel[bucket])) {
need_softclock = 1;
break;
}
}
mtx_unlock_spin_flags(&cc->cc_lock, MTX_QUIET);
/*
* swi_sched acquires the thread lock, so we don't want to call it
* with cc_lock held; incorrect locking order.
*/
if (need_softclock)
softclock(cc);
}
lowinit()
{
#if !defined(GPROF)
caddr_t cp;
#endif
extern int dumpmag;
extern int rthashsize;
extern int arptab_size;
extern int dk_ndrive;
extern struct domain unixdomain;
#ifdef INET
extern struct domain inetdomain;
#endif
#include "imp.h"
#if NIMP > 0
extern struct domain impdomain;
#endif
#ifdef NS
extern struct domain nsdomain;
#endif
/* cpp messes these up for lint so put them here */
unixdomain.dom_next = domains;
domains = &unixdomain;
#ifdef INET
inetdomain.dom_next = domains;
domains = &inetdomain;
#endif
#if NIMP > 0
impdomain.dom_next = domains;
domains = &impdomain;
#endif
#ifdef NS
nsdomain.dom_next = domains;
domains = &nsdomain;
#endif
dumpmag = 0; /* used only by savecore */
rthashsize = rthashsize; /* used by netstat, etc. */
arptab_size = arptab_size; /* used by arp command */
dk_ndrive = dk_ndrive; /* used by vmstat, iostat, etc. */
/*
* Pseudo-uses of globals.
*/
lowinit();
intstack[0] = intstack[1];
maxmem = physmem = freemem = 0;
u = u;
fixctlrmask();
main(0);
Xustray();
/*
* Routines called from interrupt vectors.
*/
panic("Machine check");
printf("Write timeout");
consdin();
consdout();
hardclock((caddr_t)0, 0);
softclock((caddr_t)0, 0);
trap((unsigned)0, (unsigned)0, (unsigned)0, (unsigned)0);
memerr();
/*
* Miscellaneous routines called from configurable
* drivers.
*/
disksort((struct buf *)0, (struct buf *)0);
(void) uwritec((struct uio *)0);
(void) todr();
if (vmemall((struct pte *)0, 0, (struct proc *)0, 0))
return; /* use value */
boothowto = 0;
dumpflag = 0; dumpflag = dumpflag;
#ifdef KADB
bootesym = 0; bootesym = bootesym;
#endif
#if !defined(GPROF)
cp = (caddr_t)&etext;
cp = cp;
#endif
}
static serv_state
run_rpc(void)
{
#ifdef HAVE_SIGACTION
sigset_t smask;
sigprocmask(SIG_BLOCK, &masked_sigs, &smask);
#else /* not HAVE_SIGACTION */
int smask = sigblock(MASKED_SIGS);
#endif /* not HAVE_SIGACTION */
next_softclock = clocktime();
amd_state = Run;
/*
* Keep on trucking while we are in Run mode. This state
* is switched to Quit after all the file systems have
* been unmounted.
*/
while ((int) amd_state <= (int) Finishing) {
struct timeval tvv;
int nsel;
time_t now;
#ifdef HAVE_SVC_GETREQSET
fd_set readfds;
memmove(&readfds, &svc_fdset, sizeof(svc_fdset));
FD_SET(fwd_sock, &readfds);
#else /* not HAVE_SVC_GETREQSET */
# ifdef FD_SET
fd_set readfds;
FD_ZERO(&readfds);
readfds.fds_bits[0] = svc_fds;
FD_SET(fwd_sock, &readfds);
# else /* not FD_SET */
int readfds = svc_fds | (1 << fwd_sock);
# endif /* not FD_SET */
#endif /* not HAVE_SVC_GETREQSET */
checkup();
/*
* If the full timeout code is not called,
* then recompute the time delta manually.
*/
now = clocktime();
if (next_softclock <= now) {
if (amd_state == Finishing)
umount_exported();
tvv.tv_sec = softclock();
} else {
tvv.tv_sec = next_softclock - now;
}
tvv.tv_usec = 0;
if (amd_state == Finishing && last_used_map < 0) {
flush_mntfs();
amd_state = Quit;
break;
}
#ifdef HAVE_FS_AUTOFS
autofs_add_fdset(&readfds);
#endif /* HAVE_FS_AUTOFS */
if (tvv.tv_sec <= 0)
tvv.tv_sec = SELECT_MAXWAIT;
if (tvv.tv_sec) {
dlog("Select waits for %ds", (int) tvv.tv_sec);
} else {
dlog("Select waits for Godot");
}
nsel = do_select(smask, FD_SETSIZE, &readfds, &tvv);
switch (nsel) {
case -1:
if (errno == EINTR) {
dlog("select interrupted");
continue;
}
plog(XLOG_ERROR, "select: %m");
break;
case 0:
break;
default:
/*
* Read all pending NFS responses at once to avoid having responses
* queue up as a consequence of retransmissions.
*/
#ifdef FD_SET
if (FD_ISSET(fwd_sock, &readfds)) {
FD_CLR(fwd_sock, &readfds);
#else /* not FD_SET */
if (readfds & (1 << fwd_sock)) {
readfds &= ~(1 << fwd_sock);
#endif /* not FD_SET */
--nsel;
do {
fwd_reply();
} while (rpc_pending_now() > 0);
}
#ifdef HAVE_FS_AUTOFS
if (nsel)
nsel = autofs_handle_fdset(&readfds, nsel);
#endif /* HAVE_FS_AUTOFS */
if (nsel) {
/*
* Anything left must be a normal
* RPC request.
*/
#ifdef HAVE_SVC_GETREQSET
svc_getreqset(&readfds);
#else /* not HAVE_SVC_GETREQSET */
# ifdef FD_SET
svc_getreq(readfds.fds_bits[0]);
# else /* not FD_SET */
svc_getreq(readfds);
# endif /* not FD_SET */
#endif /* not HAVE_SVC_GETREQSET */
}
break;
}
}
#ifdef HAVE_SIGACTION
sigprocmask(SIG_SETMASK, &smask, NULL);
#else /* not HAVE_SIGACTION */
(void) sigsetmask(smask);
#endif /* not HAVE_SIGACTION */
if (amd_state == Quit)
amd_state = Done;
return amd_state;
}
int
mount_automounter(int ppid)
{
/*
* Old code replaced by rpc-trash patch.
* Erez Zadok <*****@*****.**>
int so = socket(AF_INET, SOCK_DGRAM, 0);
*/
SVCXPRT *udp_amqp = NULL, *tcp_amqp = NULL;
int nmount, ret;
int soNFS;
int udp_soAMQ, tcp_soAMQ;
struct netconfig *udp_amqncp, *tcp_amqncp;
/*
* Create the nfs service for amd
*/
ret = create_nfs_service(&soNFS, &nfs_port, &nfsxprt, nfs_program_2);
if (ret != 0)
return ret;
/* security: if user sets -D noamq, don't even create listening socket */
amuDebug(D_AMQ) {
ret = create_amq_service(&udp_soAMQ, &udp_amqp, &udp_amqncp, &tcp_soAMQ, &tcp_amqp, &tcp_amqncp);
if (ret != 0)
return ret;
}
#ifdef HAVE_FS_AUTOFS
if (amd_use_autofs) {
/*
* Create the autofs service for amd.
*/
ret = create_autofs_service();
/* if autofs service fails it is OK if using a test amd */
if (ret != 0) {
plog(XLOG_WARNING, "autofs service registration failed, turning off autofs support");
amd_use_autofs = 0;
}
}
#endif /* HAVE_FS_AUTOFS */
/*
* Start RPC forwarding
*/
if (fwd_init() != 0)
return 3;
/*
* Construct the root automount node
*/
make_root_node();
/*
* Pick up the pieces from a previous run
* This is likely to (indirectly) need the rpc_fwd package
* so it *must* come after the call to fwd_init().
*/
if (gopt.flags & CFM_RESTART_EXISTING_MOUNTS)
restart();
/*
* Mount the top-level auto-mountpoints
*/
nmount = mount_exported();
/*
* Now safe to tell parent that we are up and running
*/
if (ppid)
kill(ppid, SIGQUIT);
if (nmount == 0) {
plog(XLOG_FATAL, "No work to do - quitting");
amd_state = Done;
return 0;
}
#ifdef DEBUG
amuDebug(D_AMQ)
#endif /* DEBUG */
{
/*
* Complete registration of amq (first TCP service then UDP)
*/
unregister_amq();
ret = amu_svc_register(tcp_amqp, get_amd_program_number(), AMQ_VERSION,
amq_program_1, IPPROTO_TCP, tcp_amqncp);
if (ret != 1) {
plog(XLOG_FATAL, "unable to register (AMQ_PROGRAM=%d, AMQ_VERSION, tcp)", get_amd_program_number());
return 3;
}
ret = amu_svc_register(udp_amqp, get_amd_program_number(), AMQ_VERSION,
amq_program_1, IPPROTO_UDP, udp_amqncp);
if (ret != 1) {
plog(XLOG_FATAL, "unable to register (AMQ_PROGRAM=%d, AMQ_VERSION, udp)", get_amd_program_number());
return 4;
}
}
/*
* Start timeout_mp rolling
*/
reschedule_timeout_mp();
/*
* Start the server
*/
if (run_rpc() != Done) {
plog(XLOG_FATAL, "run_rpc failed");
amd_state = Done;
}
return 0;
}
static serv_state
run_rpc(void)
{
#ifdef HAVE_SIGACTION
sigset_t smask;
sigprocmask(SIG_BLOCK, &masked_sigs, &smask);
#else /* not HAVE_SIGACTION */
int smask = sigblock(MASKED_SIGS);
#endif /* not HAVE_SIGACTION */
next_softclock = clocktime(NULL);
amd_state = Run;
/*
* Keep on trucking while we are in Run mode. This state
* is switched to Quit after all the file systems have
* been unmounted.
*/
while ((int) amd_state <= (int) Finishing) {
struct timeval tvv;
int nsel;
time_t now;
fd_set readfds;
#ifdef HAVE_SVC_GETREQSET
memmove(&readfds, &svc_fdset, sizeof(svc_fdset));
#else /* not HAVE_SVC_GETREQSET */
FD_ZERO(&readfds);
# ifdef HAVE_FD_SET_FDS_BITS
readfds.fds_bits[0] = svc_fds;
# else /* not HAVE_FD_SET_FDS_BITS */
readfds = svc_fds;
# endif /* not HAVE_FD_SET_FDS_BITS */
#endif /* not HAVE_SVC_GETREQSET */
FD_SET(fwd_sock, &readfds);
checkup();
/*
* If the full timeout code is not called,
* then recompute the time delta manually.
*/
now = clocktime(NULL);
if (next_softclock <= now) {
if (amd_state == Finishing)
umount_exported();
tvv.tv_sec = softclock();
} else {
tvv.tv_sec = next_softclock - now;
}
tvv.tv_usec = 0;
if (amd_state == Finishing && get_exported_ap(0) == NULL) {
flush_mntfs();
amd_state = Quit;
break;
}
#ifdef HAVE_FS_AUTOFS
autofs_add_fdset(&readfds);
#endif /* HAVE_FS_AUTOFS */
if (tvv.tv_sec <= 0)
tvv.tv_sec = SELECT_MAXWAIT;
if (tvv.tv_sec) {
dlog("Select waits for %ds", (int) tvv.tv_sec);
} else {
dlog("Select waits for Godot");
}
nsel = do_select(smask, FD_SETSIZE, &readfds, &tvv);
switch (nsel) {
case -1:
if (errno == EINTR) {
dlog("select interrupted");
continue;
}
plog(XLOG_ERROR, "select: %m");
break;
case 0:
break;
default:
/*
* Read all pending NFS responses at once to avoid having responses
* queue up as a consequence of retransmissions.
*/
if (FD_ISSET(fwd_sock, &readfds)) {
FD_CLR(fwd_sock, &readfds);
--nsel;
do {
fwd_reply();
} while (rpc_pending_now() > 0);
}
#ifdef HAVE_FS_AUTOFS
if (nsel)
nsel = autofs_handle_fdset(&readfds, nsel);
#endif /* HAVE_FS_AUTOFS */
if (nsel) {
/*
* Anything left must be a normal
* RPC request.
*/
#ifdef HAVE_SVC_GETREQSET
svc_getreqset(&readfds);
#else /* not HAVE_SVC_GETREQSET */
# ifdef HAVE_FD_SET_FDS_BITS
svc_getreq(readfds.fds_bits[0]);
# else /* not HAVE_FD_SET_FDS_BITS */
svc_getreq(readfds);
# endif /* not HAVE_FD_SET_FDS_BITS */
#endif /* not HAVE_SVC_GETREQSET */
}
break;
}
}
#ifdef HAVE_SIGACTION
sigprocmask(SIG_SETMASK, &smask, NULL);
#else /* not HAVE_SIGACTION */
(void) sigsetmask(smask);
#endif /* not HAVE_SIGACTION */
if (amd_state == Quit)
amd_state = Done;
return amd_state;
}
