1 /*- 2 * Copyright (c) 1999 Marcel Moolenaar 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 * in this position and unchanged. 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 * 3. The name of the author may not be used to endorse or promote products 15 * derived from this software without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 * 28 * $FreeBSD$ 29 */ 30 31 #include <sys/param.h> 32 #include <sys/kernel.h> 33 #include <sys/systm.h> 34 #include <sys/sysctl.h> 35 #include <sys/proc.h> 36 #include <sys/malloc.h> 37 #include <sys/jail.h> 38 39 #include <machine/../linux/linux.h> 40 #include <compat/linux/linux_mib.h> 41 42 struct linux_prison { 43 char pr_osname[LINUX_MAX_UTSNAME]; 44 char pr_osrelease[LINUX_MAX_UTSNAME]; 45 int pr_oss_version; 46 }; 47 48 SYSCTL_NODE(_compat, OID_AUTO, linux, CTLFLAG_RW, 0, 49 "Linux mode"); 50 51 static char linux_osname[LINUX_MAX_UTSNAME] = "Linux"; 52 53 static int 54 linux_sysctl_osname(SYSCTL_HANDLER_ARGS) 55 { 56 char osname[LINUX_MAX_UTSNAME]; 57 int error; 58 59 strcpy(osname, linux_get_osname(req->p)); 60 error = sysctl_handle_string(oidp, osname, LINUX_MAX_UTSNAME, req); 61 if (error || req->newptr == NULL) 62 return (error); 63 error = linux_set_osname(req->p, osname); 64 return (error); 65 } 66 67 SYSCTL_PROC(_compat_linux, OID_AUTO, osname, 68 CTLTYPE_STRING | CTLFLAG_RW | CTLFLAG_PRISON, 69 0, 0, linux_sysctl_osname, "A", 70 "Linux kernel OS name"); 71 72 static char linux_osrelease[LINUX_MAX_UTSNAME] = "2.2.12"; 73 74 static int 75 linux_sysctl_osrelease(SYSCTL_HANDLER_ARGS) 76 { 77 char osrelease[LINUX_MAX_UTSNAME]; 78 int error; 79 80 strcpy(osrelease, linux_get_osrelease(req->p)); 81 error = sysctl_handle_string(oidp, osrelease, LINUX_MAX_UTSNAME, req); 82 if (error || req->newptr == NULL) 83 return (error); 84 error = linux_set_osrelease(req->p, osrelease); 85 return (error); 86 } 87 88 SYSCTL_PROC(_compat_linux, OID_AUTO, osrelease, 89 CTLTYPE_STRING | CTLFLAG_RW | CTLFLAG_PRISON, 90 0, 0, linux_sysctl_osrelease, "A", 91 "Linux kernel OS release"); 92 93 static int linux_oss_version = 0x030600; 94 95 static int 96 linux_sysctl_oss_version(SYSCTL_HANDLER_ARGS) 97 { 98 int oss_version; 99 int error; 100 101 oss_version = linux_get_oss_version(req->p); 102 error = sysctl_handle_int(oidp, &oss_version, 0, req); 103 if (error || req->newptr == NULL) 104 return (error); 105 error = linux_set_oss_version(req->p, oss_version); 106 return (error); 107 } 108 109 SYSCTL_PROC(_compat_linux, OID_AUTO, oss_version, 110 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_PRISON, 111 0, 0, linux_sysctl_oss_version, "I", 112 "Linux OSS version"); 113 114 static struct linux_prison * 115 get_prison(struct proc *p) 116 { 117 register struct prison *pr; 118 register struct linux_prison *lpr; 119 120 pr = p->p_prison; 121 if (pr == NULL) 122 return (NULL); 123 124 if (pr->pr_linux == NULL) { 125 MALLOC(lpr, struct linux_prison *, sizeof *lpr, 126 M_PRISON, M_WAITOK|M_ZERO); 127 pr->pr_linux = lpr; 128 } 129 130 return (pr->pr_linux); 131 } 132 133 char * 134 linux_get_osname(p) 135 struct proc *p; 136 { 137 register struct prison *pr; 138 register struct linux_prison *lpr; 139 140 pr = p->p_prison; 141 if (pr != NULL && pr->pr_linux != NULL) { 142 lpr = pr->pr_linux; 143 if (lpr->pr_osname[0]) 144 return (lpr->pr_osname); 145 } 146 147 return (linux_osname); 148 } 149 150 int 151 linux_set_osname(p, osname) 152 struct proc *p; 153 char *osname; 154 { 155 register struct linux_prison *lpr; 156 157 lpr = get_prison(p); 158 if (lpr != NULL) 159 strcpy(lpr->pr_osname, osname); 160 else 161 strcpy(linux_osname, osname); 162 163 return (0); 164 } 165 166 char * 167 linux_get_osrelease(p) 168 struct proc *p; 169 { 170 register struct prison *pr; 171 register struct linux_prison *lpr; 172 173 pr = p->p_prison; 174 if (pr != NULL && pr->pr_linux != NULL) { 175 lpr = pr->pr_linux; 176 if (lpr->pr_osrelease[0]) 177 return (lpr->pr_osrelease); 178 } 179 180 return (linux_osrelease); 181 } 182 183 int 184 linux_set_osrelease(p, osrelease) 185 struct proc *p; 186 char *osrelease; 187 { 188 register struct linux_prison *lpr; 189 190 lpr = get_prison(p); 191 if (lpr != NULL) 192 strcpy(lpr->pr_osrelease, osrelease); 193 else 194 strcpy(linux_osrelease, osrelease); 195 196 return (0); 197 } 198 199 int 200 linux_get_oss_version(p) 201 struct proc *p; 202 { 203 register struct prison *pr; 204 register struct linux_prison *lpr; 205 206 pr = p->p_prison; 207 if (pr != NULL && pr->pr_linux != NULL) { 208 lpr = pr->pr_linux; 209 if (lpr->pr_oss_version) 210 return (lpr->pr_oss_version); 211 } 212 213 return (linux_oss_version); 214 } 215 216 int 217 linux_set_oss_version(p, oss_version) 218 struct proc *p; 219 int oss_version; 220 { 221 register struct linux_prison *lpr; 222 223 lpr = get_prison(p); 224 if (lpr != NULL) 225 lpr->pr_oss_version = oss_version; 226 else 227 linux_oss_version = oss_version; 228 229 return (0); 230 } 231