module/os/freebsd/spl/spl_misc.c

   1 /*
   2  * Copyright (c) 2007 Pawel Jakub Dawidek <pjd@FreeBSD.org>
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  *
  14  * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
  15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
  18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  24  * SUCH DAMAGE.
  25  */
  26
  27 #include <sys/cdefs.h>
  28 __FBSDID("$FreeBSD$");
  29
  30 #include <sys/types.h>
  31 #include <sys/param.h>
  32 #include <sys/jail.h>
  33 #include <sys/kernel.h>
  34 #include <sys/libkern.h>
  35 #include <sys/limits.h>
  36 #include <sys/misc.h>
  37 #include <sys/sysctl.h>
  38 #include <sys/vnode.h>
  39
  40 #include <sys/zfs_context.h>
  41
  42 static struct opensolaris_utsname hw_utsname = {
  43         .machine = MACHINE
  44 };
  45
  46 utsname_t *
  47 utsname(void)
  48 {
  49         return (&hw_utsname);
  50 }
  51
  52 static void
  53 opensolaris_utsname_init(void *arg)
  54 {
  55
  56         hw_utsname.sysname = ostype;
  57         hw_utsname.nodename = prison0.pr_hostname;
  58         hw_utsname.release = osrelease;
  59         snprintf(hw_utsname.version, sizeof (hw_utsname.version),
  60             "%d", osreldate);
  61 }
  62
  63 char *
  64 kmem_strdup(const char *s)
  65 {
  66         char *buf;
  67
  68         buf = kmem_alloc(strlen(s) + 1, KM_SLEEP);
  69         strcpy(buf, s);
  70         return (buf);
  71 }
  72
  73 int
  74 ddi_copyin(const void *from, void *to, size_t len, int flags)
  75 {
  76         /* Fake ioctl() issued by kernel, 'from' is a kernel address */
  77         if (flags & FKIOCTL) {
  78                 memcpy(to, from, len);
  79                 return (0);
  80         }
  81
  82         return (copyin(from, to, len));
  83 }
  84
  85 int
  86 ddi_copyout(const void *from, void *to, size_t len, int flags)
  87 {
  88         /* Fake ioctl() issued by kernel, 'from' is a kernel address */
  89         if (flags & FKIOCTL) {
  90                 memcpy(to, from, len);
  91                 return (0);
  92         }
  93
  94         return (copyout(from, to, len));
  95 }
  96
  97 void
  98 spl_panic(const char *file, const char *func, int line, const char *fmt, ...)
  99 {
 100         va_list ap;
 101
 102         va_start(ap, fmt);
 103         vpanic(fmt, ap);
 104         va_end(ap);
 105 }
 106
 107
 108 SYSINIT(opensolaris_utsname_init, SI_SUB_TUNABLES, SI_ORDER_ANY,
 109     opensolaris_utsname_init, NULL);