diff options
Diffstat (limited to 'openvpn/otime.c')
| -rw-r--r-- | openvpn/otime.c | 198 |
1 files changed, 0 insertions, 198 deletions
diff --git a/openvpn/otime.c b/openvpn/otime.c deleted file mode 100644 index ad9cbbf..0000000 --- a/openvpn/otime.c +++ /dev/null @@ -1,198 +0,0 @@ -/* - * OpenVPN -- An application to securely tunnel IP networks - * over a single TCP/UDP port, with support for SSL/TLS-based - * session authentication and key exchange, - * packet encryption, packet authentication, and - * packet compression. - * - * Copyright (C) 2002-2005 OpenVPN Solutions LLC <info@openvpn.net> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 - * as published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program (see the file COPYING included with this - * distribution); if not, write to the Free Software Foundation, Inc., - * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - */ - -#ifdef WIN32 -#include "config-win32.h" -#else -#include "config.h" -#endif - -#include "syshead.h" - -#include "otime.h" - -#include "memdbg.h" - -volatile time_t now; /* GLOBAL */ - -/* - * Return a numerical string describing a struct timeval. - */ -const char * -tv_string (const struct timeval *tv, struct gc_arena *gc) -{ - struct buffer out = alloc_buf_gc (64, gc); - buf_printf (&out, "[%d/%d]", - (int) tv->tv_sec, - (int )tv->tv_usec); - return BSTR (&out); -} - -/* - * Return an ascii string describing an absolute - * date/time in a struct timeval. - * - */ -const char * -tv_string_abs (const struct timeval *tv, struct gc_arena *gc) -{ - return time_string ((time_t) tv->tv_sec, - (int) tv->tv_usec, - true, - gc); -} - -/* format a time_t as ascii, or use current time if 0 */ - -const char * -time_string (time_t t, int usec, bool show_usec, struct gc_arena *gc) -{ - struct buffer out = alloc_buf_gc (64, gc); - struct timeval tv; - - if (t) - { - tv.tv_sec = t; - tv.tv_usec = usec; - } - else - { -#ifdef HAVE_GETTIMEOFDAY - if (gettimeofday (&tv, NULL)) -#endif - { - tv.tv_sec = time (NULL); - tv.tv_usec = 0; - } - } - - mutex_lock_static (L_CTIME); - buf_printf (&out, "%s", ctime ((const time_t *)&tv.tv_sec)); - mutex_unlock_static (L_CTIME); - buf_rmtail (&out, '\n'); - - if (show_usec && tv.tv_usec) - buf_printf (&out, " us=%d", (int)tv.tv_usec); - - return BSTR (&out); -} - -/* - * Limit the frequency of an event stream. - * - * Used to control maximum rate of new - * incoming connections. - */ - -struct frequency_limit * -frequency_limit_init (int max, int per) -{ - struct frequency_limit *f; - - ASSERT (max >= 0 && per >= 0); - - ALLOC_OBJ (f, struct frequency_limit); - f->max = max; - f->per = per; - f->n = 0; - f->reset = 0; - return f; -} - -void -frequency_limit_free (struct frequency_limit *f) -{ - free (f); -} - -bool -frequency_limit_event_allowed (struct frequency_limit *f) -{ - if (f->per) - { - bool ret; - if (now >= f->reset + f->per) - { - f->reset = now; - f->n = 0; - } - ret = (++f->n <= f->max); - return ret; - } - else - return true; -} - -#ifdef WIN32 - -static double counterPerMicrosecond = -1.0; /* GLOBAL */ -static unsigned __int64 frequency = 0; /* GLOBAL */ -static unsigned __int64 timeSecOffset = 0; /* GLOBAL */ -static unsigned __int64 startPerformanceCounter = 0; /* GLOBAL */ - -/* - * gettimeofday for windows - * - * CounterPerMicrosecond is the number of counts per microsecond. - * Double is required if we have less than 1 counter per microsecond. This has not been tested. - * On a PIII 700, I get about 3.579545. This is guaranteed not to change while the processor is running. - * We really don't need to check for loop detection. On my machine it would take about 59645564 days to loop. - * (2^64) / frequency / 60 / 60 / 24. - * - */ -int -gettimeofday(struct timeval *tv, void *tz) -{ - unsigned __int64 counter; - - QueryPerformanceCounter((LARGE_INTEGER *) &counter); - - if (counter < startPerformanceCounter || counterPerMicrosecond == -1.0) - { - time_t t; - mutex_lock (L_GETTIMEOFDAY); - - QueryPerformanceFrequency((LARGE_INTEGER *) &frequency); - - counterPerMicrosecond = (double) ((__int64) frequency) / 1000000.0f; - - time(&t); - QueryPerformanceCounter((LARGE_INTEGER *) &counter); - startPerformanceCounter = counter; - - counter /= frequency; - - timeSecOffset = t - counter; - - mutex_unlock (L_GETTIMEOFDAY); - QueryPerformanceCounter((LARGE_INTEGER *) &counter); - } - - tv->tv_sec = (counter / frequency) + timeSecOffset; - tv->tv_usec = ((__int64) (((__int64) counter) / counterPerMicrosecond) % 1000000); - - return 0; -} - -#endif /* WIN32 */ |