1 // SPDX-License-Identifier: BSD-2-Clause 2 /* 3 * Copyright (c) 2007 Pawel Jakub Dawidek <pjd@FreeBSD.org> 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND 16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE 19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 */ 27 28 #include <sys/types.h> 29 #include <sys/param.h> 30 #include <sys/jail.h> 31 #include <sys/kernel.h> 32 #include <sys/libkern.h> 33 #include <sys/limits.h> 34 #include <sys/misc.h> 35 #include <sys/sysctl.h> 36 #include <sys/vnode.h> 37 38 #include <sys/zfs_context.h> 39 40 static struct opensolaris_utsname hw_utsname = { 41 .sysname = ostype, 42 .nodename = prison0.pr_hostname, 43 .release = osrelease, 44 .machine = MACHINE 45 }; 46 47 utsname_t * 48 utsname(void) 49 { 50 return (&hw_utsname); 51 } 52 53 static void 54 opensolaris_utsname_init(void *arg) 55 { 56 snprintf(hw_utsname.version, sizeof (hw_utsname.version), 57 "%d", osreldate); 58 } 59 60 char * 61 kmem_strdup(const char *s) 62 { 63 char *buf; 64 65 buf = kmem_alloc(strlen(s) + 1, KM_SLEEP); 66 strcpy(buf, s); 67 return (buf); 68 } 69 70 int 71 ddi_copyin(const void *from, void *to, size_t len, int flags) 72 { 73 /* Fake ioctl() issued by kernel, 'from' is a kernel address */ 74 if (flags & FKIOCTL) { 75 memcpy(to, from, len); 76 return (0); 77 } 78 79 return (copyin(from, to, len)); 80 } 81 82 int 83 ddi_copyout(const void *from, void *to, size_t len, int flags) 84 { 85 /* Fake ioctl() issued by kernel, 'from' is a kernel address */ 86 if (flags & FKIOCTL) { 87 memcpy(to, from, len); 88 return (0); 89 } 90 91 return (copyout(from, to, len)); 92 } 93 94 void 95 spl_panic(const char *file, const char *func, int line, const char *fmt, ...) 96 { 97 va_list ap; 98 99 va_start(ap, fmt); 100 vpanic(fmt, ap); 101 va_end(ap); 102 } 103 104 /* 105 * Check if the current thread is a memory reclaim thread. 106 * Returns true if curproc is pageproc (FreeBSD's page daemon). 107 */ 108 int 109 current_is_reclaim_thread(void) 110 { 111 return (curproc == pageproc); 112 } 113 114 SYSINIT(opensolaris_utsname_init, SI_SUB_TUNABLES, SI_ORDER_ANY, 115 opensolaris_utsname_init, NULL); 116