From 8f70e16bf3f533fa0e164d0da06d00cffc63b9bb Mon Sep 17 00:00:00 2001 From: Gordon Ross Date: Sat, 22 Sep 2018 16:23:42 -0400 Subject: 10977 Windows 10 SMB client exhausts smbauth sockets Reviewed by: Matt Barden Reviewed by: Yuri Pankov Approved by: Dan McDonald --- usr/src/lib/libfakekernel/common/callout.c | 96 ++++++++++++++++++++++++++++++ 1 file changed, 96 insertions(+) create mode 100644 usr/src/lib/libfakekernel/common/callout.c (limited to 'usr/src/lib/libfakekernel/common/callout.c') diff --git a/usr/src/lib/libfakekernel/common/callout.c b/usr/src/lib/libfakekernel/common/callout.c new file mode 100644 index 0000000000..24bb41cdff --- /dev/null +++ b/usr/src/lib/libfakekernel/common/callout.c @@ -0,0 +1,96 @@ +/* + * This file and its contents are supplied under the terms of the + * Common Development and Distribution License ("CDDL"), version 1.0. + * You may only use this file in accordance with the terms of version + * 1.0 of the CDDL. + * + * A full copy of the text of the CDDL should have accompanied this + * source. A copy of the CDDL is also available via the Internet at + * http://www.illumos.org/license/CDDL. + */ + +/* + * Copyright 2018 Nexenta Systems, Inc. All rights reserved. + */ + +/* + * Implement timeout(9f), untimeout(9f) on top of + * libc timer_create, timer_settime, etc. + */ + +#include +#include +#include + +typedef void (*sigev_notify_func_t)(union sigval); + +/* + * We never actually reference anything in this array, using it + * just as a collection of addresses mapped from/to int values. + * It would be fine to take addresses even beyond the end, but + * to avoid confusion it's sized larger than _TIMER_MAX (32). + */ +static char timeout_base[100]; + +timeout_id_t +timeout(void (*func)(void *), void *arg, clock_t delta) +{ + struct sigevent sev; + struct itimerspec its; + timer_t tid; + int err; + + if (delta <= 0) + return (NULL); + + bzero(&sev, sizeof (sev)); + sev.sigev_notify = SIGEV_THREAD; + sev.sigev_value.sival_ptr = arg; + sev.sigev_notify_function = (sigev_notify_func_t)func; + err = timer_create(CLOCK_REALTIME, &sev, &tid); + if (err != 0) + return (NULL); + + bzero(&its, sizeof (its)); + TICK_TO_TIMESTRUC(delta, &its.it_value); + err = timer_settime(tid, 0, &its, NULL); + if (err != 0) { + (void) timer_delete(tid); + return (NULL); + } + + /* Convert return to a (sort of) pointer */ + return (timeout_base + tid); +} + +clock_t +untimeout(timeout_id_t id_arg) +{ + struct itimerspec its; + char *id_cp = id_arg; + clock_t delta; + timer_t tid; + int rc; + + if (id_arg == NULL) + return (-1); + + /* Convert id_arg back to small integer. */ + tid = (int)(id_cp - timeout_base); + + bzero(&its, sizeof (its)); + rc = timer_settime(tid, 0, &its, &its); + if (rc != 0) { + delta = 0; + } else { + delta = TIMESTRUC_TO_TICK(&its.it_value); + if (delta < 0) + delta = 0; + } + + rc = timer_delete(tid); + if (rc != 0) + delta = -1; + + return (delta); +} -- cgit v1.2.3