/*
- * Copyright (c) 2000-2007 Apple Inc. All rights reserved.
+ * Copyright (c) 2000-2008 Apple Inc. All rights reserved.
*
* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
*
#include <sys/proc_internal.h>
#include <sys/kauth.h>
#include <sys/vnode.h>
+#include <sys/time.h>
+#include <sys/priv.h>
#include <sys/mount_internal.h>
#include <sys/sysproto.h>
#include <sys/signalvar.h>
+#include <sys/protosw.h> /* for net_uptime2timeval() */
#include <kern/clock.h>
#include <kern/task.h>
static void setthetime(
struct timeval *tv);
-void time_zone_slock_init(void) __attribute__((section("__TEXT, initcode")));
+void time_zone_slock_init(void);
/*
* Time of day and interval timer support.
gettimeofday(
__unused struct proc *p,
struct gettimeofday_args *uap,
- register_t *retval)
+ int32_t *retval)
{
int error = 0;
struct timezone ltz; /* local copy */
- if (uap->tp)
- clock_gettimeofday((uint32_t *)&retval[0], (uint32_t *)&retval[1]);
+ if (uap->tp) {
+ clock_sec_t secs;
+ clock_usec_t usecs;
+
+ clock_gettimeofday(&secs, &usecs);
+ retval[0] = secs;
+ retval[1] = usecs;
+ }
if (uap->tzp) {
lck_spin_lock(tz_slock);
*/
/* ARGSUSED */
int
-settimeofday(__unused struct proc *p, struct settimeofday_args *uap, __unused register_t *retval)
+settimeofday(__unused struct proc *p, struct settimeofday_args *uap, __unused int32_t *retval)
{
struct timeval atv;
struct timezone atz;
int error;
+ bzero(&atv, sizeof(atv));
+
#if CONFIG_MACF
error = mac_system_check_settime(kauth_cred_get());
if (error)
return (error);
#endif
-#ifndef CONFIG_EMBEDDED
if ((error = suser(kauth_cred_get(), &p->p_acflag)))
return (error);
-#endif
/* Verify all parameters before changing time */
if (uap->tv) {
if (IS_64BIT_PROCESS(p)) {
- struct user_timeval user_atv;
- error = copyin(uap->tv, &user_atv, sizeof(struct user_timeval));
+ struct user64_timeval user_atv;
+ error = copyin(uap->tv, &user_atv, sizeof(user_atv));
atv.tv_sec = user_atv.tv_sec;
atv.tv_usec = user_atv.tv_usec;
} else {
- error = copyin(uap->tv, &atv, sizeof(struct timeval));
+ struct user32_timeval user_atv;
+ error = copyin(uap->tv, &user_atv, sizeof(user_atv));
+ atv.tv_sec = user_atv.tv_sec;
+ atv.tv_usec = user_atv.tv_usec;
}
if (error)
return (error);
*/
/* ARGSUSED */
int
-adjtime(struct proc *p, struct adjtime_args *uap, __unused register_t *retval)
+adjtime(struct proc *p, struct adjtime_args *uap, __unused int32_t *retval)
{
struct timeval atv;
int error;
if (error)
return (error);
#endif
- if ((error = suser(kauth_cred_get(), &p->p_acflag)))
+ if ((error = priv_check_cred(kauth_cred_get(), PRIV_ADJTIME, 0)))
return (error);
if (IS_64BIT_PROCESS(p)) {
- struct user_timeval user_atv;
- error = copyin(uap->delta, &user_atv, sizeof(struct user_timeval));
+ struct user64_timeval user_atv;
+ error = copyin(uap->delta, &user_atv, sizeof(user_atv));
atv.tv_sec = user_atv.tv_sec;
atv.tv_usec = user_atv.tv_usec;
} else {
- error = copyin(uap->delta, &atv, sizeof(struct timeval));
+ struct user32_timeval user_atv;
+ error = copyin(uap->delta, &user_atv, sizeof(user_atv));
+ atv.tv_sec = user_atv.tv_sec;
+ atv.tv_usec = user_atv.tv_usec;
}
if (error)
return (error);
/*
* Compute the total correction and the rate at which to apply it.
*/
- clock_adjtime((int32_t *)&atv.tv_sec, &atv.tv_usec);
+ clock_adjtime(&atv.tv_sec, &atv.tv_usec);
if (uap->olddelta) {
if (IS_64BIT_PROCESS(p)) {
- struct user_timeval user_atv;
+ struct user64_timeval user_atv;
user_atv.tv_sec = atv.tv_sec;
user_atv.tv_usec = atv.tv_usec;
- error = copyout(&user_atv, uap->olddelta, sizeof(struct user_timeval));
+ error = copyout(&user_atv, uap->olddelta, sizeof(user_atv));
} else {
- error = copyout(&atv, uap->olddelta, sizeof(struct timeval));
+ struct user32_timeval user_atv;
+ user_atv.tv_sec = atv.tv_sec;
+ user_atv.tv_usec = atv.tv_usec;
+ error = copyout(&user_atv, uap->olddelta, sizeof(user_atv));
}
}
time_t
boottime_sec(void)
{
- uint32_t sec, nanosec;
- clock_get_boottime_nanotime(&sec, &nanosec);
- return (sec);
-}
+ clock_sec_t secs;
+ clock_nsec_t nanosecs;
-uint64_t tvtoabstime(struct timeval *tvp);
+ clock_get_boottime_nanotime(&secs, &nanosecs);
+ return (secs);
+}
/*
* Get value of an interval timer. The process virtual and
*/
/* ARGSUSED */
int
-getitimer(struct proc *p, struct getitimer_args *uap, __unused register_t *retval)
+getitimer(struct proc *p, struct getitimer_args *uap, __unused int32_t *retval)
{
struct itimerval aitv;
if (uap->which > ITIMER_PROF)
return(EINVAL);
+ bzero(&aitv, sizeof(aitv));
+
proc_spinlock(p);
switch (uap->which) {
proc_spinunlock(p);
if (IS_64BIT_PROCESS(p)) {
- struct user_itimerval user_itv;
+ struct user64_itimerval user_itv;
user_itv.it_interval.tv_sec = aitv.it_interval.tv_sec;
user_itv.it_interval.tv_usec = aitv.it_interval.tv_usec;
user_itv.it_value.tv_sec = aitv.it_value.tv_sec;
user_itv.it_value.tv_usec = aitv.it_value.tv_usec;
- return (copyout((caddr_t)&user_itv, uap->itv, sizeof (struct user_itimerval)));
+ return (copyout((caddr_t)&user_itv, uap->itv, sizeof (user_itv)));
} else {
- return (copyout((caddr_t)&aitv, uap->itv, sizeof (struct itimerval)));
+ struct user32_itimerval user_itv;
+ user_itv.it_interval.tv_sec = aitv.it_interval.tv_sec;
+ user_itv.it_interval.tv_usec = aitv.it_interval.tv_usec;
+ user_itv.it_value.tv_sec = aitv.it_value.tv_sec;
+ user_itv.it_value.tv_usec = aitv.it_value.tv_usec;
+ return (copyout((caddr_t)&user_itv, uap->itv, sizeof (user_itv)));
}
}
*/
/* ARGSUSED */
int
-setitimer(struct proc *p, struct setitimer_args *uap, register_t *retval)
+setitimer(struct proc *p, struct setitimer_args *uap, int32_t *retval)
{
struct itimerval aitv;
user_addr_t itvp;
int error;
+ bzero(&aitv, sizeof(aitv));
+
if (uap->which > ITIMER_PROF)
return (EINVAL);
if ((itvp = uap->itv)) {
if (IS_64BIT_PROCESS(p)) {
- struct user_itimerval user_itv;
- if ((error = copyin(itvp, (caddr_t)&user_itv, sizeof (struct user_itimerval))))
+ struct user64_itimerval user_itv;
+ if ((error = copyin(itvp, (caddr_t)&user_itv, sizeof (user_itv))))
return (error);
aitv.it_interval.tv_sec = user_itv.it_interval.tv_sec;
aitv.it_interval.tv_usec = user_itv.it_interval.tv_usec;
aitv.it_value.tv_sec = user_itv.it_value.tv_sec;
aitv.it_value.tv_usec = user_itv.it_value.tv_usec;
} else {
- if ((error = copyin(itvp, (caddr_t)&aitv, sizeof (struct itimerval))))
+ struct user32_itimerval user_itv;
+ if ((error = copyin(itvp, (caddr_t)&user_itv, sizeof (user_itv))))
return (error);
+ aitv.it_interval.tv_sec = user_itv.it_interval.tv_sec;
+ aitv.it_interval.tv_usec = user_itv.it_interval.tv_usec;
+ aitv.it_value.tv_sec = user_itv.it_value.tv_sec;
+ aitv.it_value.tv_usec = user_itv.it_value.tv_usec;
}
}
if ((uap->itv = uap->oitv) && (error = getitimer(p, (struct getitimer_args *)uap, retval)))
microuptime(&p->p_rtime);
timevaladd(&p->p_rtime, &aitv.it_value);
p->p_realtimer = aitv;
- if (!thread_call_enter_delayed(p->p_rcall, tvtoabstime(&p->p_rtime)))
+ if (!thread_call_enter_delayed_with_leeway(p->p_rcall, NULL,
+ tvtoabstime(&p->p_rtime), 0, THREAD_CALL_DELAY_USER_NORMAL))
p->p_ractive++;
} else {
timerclear(&p->p_rtime);
return (0);
}
+int
+timespec_is_valid(const struct timespec *ts)
+{
+ /* The INT32_MAX limit ensures the timespec is safe for clock_*() functions
+ * which accept 32-bit ints. */
+ if (ts->tv_sec < 0 || ts->tv_sec > INT32_MAX ||
+ ts->tv_nsec < 0 || (unsigned long long)ts->tv_nsec > NSEC_PER_SEC) {
+ return 0;
+ }
+ return 1;
+}
+
/*
* Decrement an interval timer by a specified number
* of microseconds, which must be less than a second,
microtime(
struct timeval *tvp)
{
- clock_get_calendar_microtime((uint32_t *)&tvp->tv_sec, (uint32_t *)&tvp->tv_usec);
+ clock_sec_t tv_sec;
+ clock_usec_t tv_usec;
+
+ clock_get_calendar_microtime(&tv_sec, &tv_usec);
+
+ tvp->tv_sec = tv_sec;
+ tvp->tv_usec = tv_usec;
+}
+
+void
+microtime_with_abstime(
+ struct timeval *tvp, uint64_t *abstime)
+{
+ clock_sec_t tv_sec;
+ clock_usec_t tv_usec;
+
+ clock_get_calendar_absolute_and_microtime(&tv_sec, &tv_usec, abstime);
+
+ tvp->tv_sec = tv_sec;
+ tvp->tv_usec = tv_usec;
}
void
microuptime(
struct timeval *tvp)
{
- clock_get_system_microtime((uint32_t *)&tvp->tv_sec, (uint32_t *)&tvp->tv_usec);
+ clock_sec_t tv_sec;
+ clock_usec_t tv_usec;
+
+ clock_get_system_microtime(&tv_sec, &tv_usec);
+
+ tvp->tv_sec = tv_sec;
+ tvp->tv_usec = tv_usec;
}
/*
nanotime(
struct timespec *tsp)
{
- clock_get_calendar_nanotime((uint32_t *)&tsp->tv_sec, (uint32_t *)&tsp->tv_nsec);
+ clock_sec_t tv_sec;
+ clock_nsec_t tv_nsec;
+
+ clock_get_calendar_nanotime(&tv_sec, &tv_nsec);
+
+ tsp->tv_sec = tv_sec;
+ tsp->tv_nsec = tv_nsec;
}
void
nanouptime(
struct timespec *tsp)
{
- clock_get_system_nanotime((uint32_t *)&tsp->tv_sec, (uint32_t *)&tsp->tv_nsec);
+ clock_sec_t tv_sec;
+ clock_nsec_t tv_nsec;
+
+ clock_get_system_nanotime(&tv_sec, &tv_nsec);
+
+ tsp->tv_sec = tv_sec;
+ tsp->tv_nsec = tv_nsec;
}
uint64_t
return (result + usresult);
}
+
+uint64_t
+tstoabstime(struct timespec *ts)
+{
+ uint64_t abstime_s, abstime_ns;
+ clock_interval_to_absolutetime_interval(ts->tv_sec, NSEC_PER_SEC, &abstime_s);
+ clock_interval_to_absolutetime_interval(ts->tv_nsec, 1, &abstime_ns);
+ return abstime_s + abstime_ns;
+}
+
+#if NETWORKING
+/*
+ * ratecheck(): simple time-based rate-limit checking.
+ */
+int
+ratecheck(struct timeval *lasttime, const struct timeval *mininterval)
+{
+ struct timeval tv, delta;
+ int rv = 0;
+
+ net_uptime2timeval(&tv);
+ delta = tv;
+ timevalsub(&delta, lasttime);
+
+ /*
+ * check for 0,0 is so that the message will be seen at least once,
+ * even if interval is huge.
+ */
+ if (timevalcmp(&delta, mininterval, >=) ||
+ (lasttime->tv_sec == 0 && lasttime->tv_usec == 0)) {
+ *lasttime = tv;
+ rv = 1;
+ }
+
+ return (rv);
+}
+
+/*
+ * ppsratecheck(): packets (or events) per second limitation.
+ */
+int
+ppsratecheck(struct timeval *lasttime, int *curpps, int maxpps)
+{
+ struct timeval tv, delta;
+ int rv;
+
+ net_uptime2timeval(&tv);
+
+ timersub(&tv, lasttime, &delta);
+
+ /*
+ * Check for 0,0 so that the message will be seen at least once.
+ * If more than one second has passed since the last update of
+ * lasttime, reset the counter.
+ *
+ * we do increment *curpps even in *curpps < maxpps case, as some may
+ * try to use *curpps for stat purposes as well.
+ */
+ if ((lasttime->tv_sec == 0 && lasttime->tv_usec == 0) ||
+ delta.tv_sec >= 1) {
+ *lasttime = tv;
+ *curpps = 0;
+ rv = 1;
+ } else if (maxpps < 0)
+ rv = 1;
+ else if (*curpps < maxpps)
+ rv = 1;
+ else
+ rv = 0;
+
+#if 1 /* DIAGNOSTIC? */
+ /* be careful about wrap-around */
+ if (*curpps + 1 > 0)
+ *curpps = *curpps + 1;
+#else
+ /*
+ * assume that there's not too many calls to this function.
+ * not sure if the assumption holds, as it depends on *caller's*
+ * behavior, not the behavior of this function.
+ * IMHO it is wrong to make assumption on the caller's behavior,
+ * so the above #if is #if 1, not #ifdef DIAGNOSTIC.
+ */
+ *curpps = *curpps + 1;
+#endif
+
+ return (rv);
+}
+#endif /* NETWORKING */
+
void
time_zone_slock_init(void)
{
projects / apple / xnu.git / blobdiff