1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/netwerk/sctp/src/user_environment.c Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,96 @@
1.4 +/*-
1.5 + * Copyright (c) 2009-2010 Brad Penoff
1.6 + * Copyright (c) 2009-2010 Humaira Kamal
1.7 + * Copyright (c) 2011-2012 Irene Ruengeler
1.8 + * Copyright (c) 2011-2012 Michael Tuexen
1.9 + *
1.10 + * All rights reserved.
1.11 + *
1.12 + * Redistribution and use in source and binary forms, with or without
1.13 + * modification, are permitted provided that the following conditions
1.14 + * are met:
1.15 + * 1. Redistributions of source code must retain the above copyright
1.16 + * notice, this list of conditions and the following disclaimer.
1.17 + * 2. Redistributions in binary form must reproduce the above copyright
1.18 + * notice, this list of conditions and the following disclaimer in the
1.19 + * documentation and/or other materials provided with the distribution.
1.20 + *
1.21 + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
1.22 + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
1.23 + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
1.24 + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
1.25 + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
1.26 + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
1.27 + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
1.28 + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
1.29 + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
1.30 + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
1.31 + * SUCH DAMAGE.
1.32 + */
1.33 +
1.34 +/* __Userspace__ */
1.35 +
1.36 +#include <stdlib.h>
1.37 +#if !defined (__Userspace_os_Windows)
1.38 +#include <stdint.h>
1.39 +#include <netinet/sctp_os_userspace.h>
1.40 +#endif
1.41 +#include <user_environment.h>
1.42 +#include <sys/types.h>
1.43 +/* #include <sys/param.h> defines MIN */
1.44 +#if !defined(MIN)
1.45 +#define MIN(arg1,arg2) ((arg1) < (arg2) ? (arg1) : (arg2))
1.46 +#endif
1.47 +#include <string.h>
1.48 +
1.49 +#define uHZ 1000
1.50 +
1.51 +/* See user_include/user_environment.h for comments about these variables */
1.52 +int maxsockets = 25600;
1.53 +int hz = uHZ;
1.54 +int ip_defttl = 64;
1.55 +int ipport_firstauto = 49152, ipport_lastauto = 65535;
1.56 +int nmbclusters = 65536;
1.57 +
1.58 +/* Source ip_output.c. extern'd in ip_var.h */
1.59 +u_short ip_id = 0; /*__Userspace__ TODO Should it be initialized to zero? */
1.60 +
1.61 +/* used in user_include/user_atomic.h in order to make the operations
1.62 + * defined there truly atomic
1.63 + */
1.64 +userland_mutex_t atomic_mtx;
1.65 +
1.66 +/* Source: /usr/src/sys/dev/random/harvest.c */
1.67 +static int read_random_phony(void *, int);
1.68 +
1.69 +static int (*read_func)(void *, int) = read_random_phony;
1.70 +
1.71 +/* Userland-visible version of read_random */
1.72 +int
1.73 +read_random(void *buf, int count)
1.74 +{
1.75 + return ((*read_func)(buf, count));
1.76 +}
1.77 +
1.78 +/* If the entropy device is not loaded, make a token effort to
1.79 + * provide _some_ kind of randomness. This should only be used
1.80 + * inside other RNG's, like arc4random(9).
1.81 + */
1.82 +static int
1.83 +read_random_phony(void *buf, int count)
1.84 +{
1.85 + uint32_t randval;
1.86 + int size, i;
1.87 +
1.88 + /* srandom() is called in kern/init_main.c:proc0_post() */
1.89 +
1.90 + /* Fill buf[] with random(9) output */
1.91 + for (i = 0; i < count; i+= (int)sizeof(uint32_t)) {
1.92 + randval = random();
1.93 + size = MIN(count - i, (int)sizeof(uint32_t));
1.94 + memcpy(&((char *)buf)[i], &randval, (size_t)size);
1.95 + }
1.96 +
1.97 + return (count);
1.98 +}
1.99 +
