kern_info_43.c revision 1.15
1 /* $NetBSD: kern_info_43.c,v 1.15 2003/06/28 14:21:16 darrenr Exp $ */ 2 3 /* 4 * Copyright (c) 1982, 1986, 1991, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by the University of 18 * California, Berkeley and its contributors. 19 * 4. Neither the name of the University nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 * 35 * @(#)subr_xxx.c 8.1 (Berkeley) 6/10/93 36 */ 37 38 #include <sys/cdefs.h> 39 __KERNEL_RCSID(0, "$NetBSD: kern_info_43.c,v 1.15 2003/06/28 14:21:16 darrenr Exp $"); 40 41 #include <sys/param.h> 42 #include <sys/systm.h> 43 #include <sys/filedesc.h> 44 #include <sys/kernel.h> 45 #include <sys/vnode.h> 46 #include <sys/proc.h> 47 #include <sys/file.h> 48 #include <sys/socket.h> 49 #include <sys/socketvar.h> 50 #include <sys/stat.h> 51 #include <sys/ioctl.h> 52 #include <sys/fcntl.h> 53 #include <sys/malloc.h> 54 #include <sys/syslog.h> 55 #include <sys/unistd.h> 56 #include <sys/resourcevar.h> 57 58 #include <uvm/uvm_extern.h> 59 #include <sys/sysctl.h> 60 61 #include <sys/mount.h> 62 #include <sys/sa.h> 63 #include <sys/syscallargs.h> 64 65 int 66 compat_43_sys_getdtablesize(struct lwp *l, void *v, register_t *retval) 67 { 68 struct proc *p = l->l_proc; 69 70 *retval = min((int)p->p_rlimit[RLIMIT_NOFILE].rlim_cur, maxfiles); 71 return (0); 72 } 73 74 75 /* ARGSUSED */ 76 int 77 compat_43_sys_gethostid(struct lwp *l, void *v, register_t *retval) 78 { 79 80 *(int32_t *)retval = hostid; 81 return (0); 82 } 83 84 85 /*ARGSUSED*/ 86 int 87 compat_43_sys_gethostname(struct lwp *l, void *v, register_t *retval) 88 { 89 struct compat_43_sys_gethostname_args /* { 90 syscallarg(char *) hostname; 91 syscallarg(u_int) len; 92 } */ *uap = v; 93 int name; 94 size_t sz; 95 96 name = KERN_HOSTNAME; 97 sz = SCARG(uap, len); 98 return (kern_sysctl(&name, 1, SCARG(uap, hostname), &sz, 0, 0, l)); 99 } 100 101 #define KINFO_PROC (0<<8) 102 #define KINFO_RT (1<<8) 103 #define KINFO_VNODE (2<<8) 104 #define KINFO_FILE (3<<8) 105 #define KINFO_METER (4<<8) 106 #define KINFO_LOADAVG (5<<8) 107 #define KINFO_CLOCKRATE (6<<8) 108 #define KINFO_BSDI_SYSINFO (101<<8) 109 110 111 /* 112 * The string data is appended to the end of the bsdi_si structure during 113 * copyout. The "char *" offsets in the bsdi_si struct are relative to the 114 * base of the bsdi_si struct. 115 */ 116 struct bsdi_si { 117 char *machine; 118 char *cpu_model; 119 long ncpu; 120 long cpuspeed; 121 long hwflags; 122 u_long physmem; 123 u_long usermem; 124 u_long pagesize; 125 126 char *ostype; 127 char *osrelease; 128 long os_revision; 129 long posix1_version; 130 char *version; 131 132 long hz; 133 long profhz; 134 int ngroups_max; 135 long arg_max; 136 long open_max; 137 long child_max; 138 139 struct timeval boottime; 140 char *hostname; 141 }; 142 143 int 144 compat_43_sys_getkerninfo(struct lwp *l, void *v, register_t *retval) 145 { 146 struct compat_43_sys_getkerninfo_args /* { 147 syscallarg(int) op; 148 syscallarg(char *) where; 149 syscallarg(int *) size; 150 syscallarg(int) arg; 151 } */ *uap = v; 152 int error, name[5]; 153 size_t size; 154 155 if (SCARG(uap, size) && (error = copyin((caddr_t)SCARG(uap, size), 156 (caddr_t)&size, sizeof(size)))) 157 return (error); 158 159 switch (SCARG(uap, op) & 0xff00) { 160 161 case KINFO_RT: 162 name[0] = PF_ROUTE; 163 name[1] = 0; 164 name[2] = (SCARG(uap, op) & 0xff0000) >> 16; 165 name[3] = SCARG(uap, op) & 0xff; 166 name[4] = SCARG(uap, arg); 167 error = 168 net_sysctl(name, 5, SCARG(uap, where), &size, NULL, 0, l); 169 break; 170 171 case KINFO_VNODE: 172 name[0] = KERN_VNODE; 173 error = 174 kern_sysctl(name, 1, SCARG(uap, where), &size, NULL, 0, l); 175 break; 176 177 case KINFO_PROC: 178 name[0] = KERN_PROC; 179 name[1] = SCARG(uap, op) & 0xff; 180 name[2] = SCARG(uap, arg); 181 error = 182 kern_sysctl(name, 3, SCARG(uap, where), &size, NULL, 0, l); 183 break; 184 185 case KINFO_FILE: 186 name[0] = KERN_FILE; 187 error = 188 kern_sysctl(name, 1, SCARG(uap, where), &size, NULL, 0, l); 189 break; 190 191 case KINFO_METER: 192 name[0] = VM_METER; 193 error = 194 uvm_sysctl(name, 1, SCARG(uap, where), &size, NULL, 0, l); 195 break; 196 197 case KINFO_LOADAVG: 198 name[0] = VM_LOADAVG; 199 error = 200 uvm_sysctl(name, 1, SCARG(uap, where), &size, NULL, 0, l); 201 break; 202 203 case KINFO_CLOCKRATE: 204 name[0] = KERN_CLOCKRATE; 205 error = 206 kern_sysctl(name, 1, SCARG(uap, where), &size, NULL, 0, l); 207 break; 208 209 210 case KINFO_BSDI_SYSINFO: 211 { 212 size_t len; 213 struct bsdi_si *usi = 214 (struct bsdi_si *) SCARG(uap, where); 215 struct bsdi_si ksi; 216 char *us = (char *) &usi[1]; 217 218 if (usi == NULL) { 219 size = sizeof(ksi) + 220 strlen(ostype) + strlen(cpu_model) + 221 strlen(osrelease) + strlen(machine) + 222 strlen(version) + strlen(hostname) + 6; 223 error = 0; 224 break; 225 } 226 227 #define COPY(fld) \ 228 ksi.fld = us - (u_long) usi; \ 229 if ((error = copyoutstr(fld, us, 1024, &len)) != 0)\ 230 return error; \ 231 us += len 232 233 COPY(machine); 234 COPY(cpu_model); 235 ksi.ncpu = 1; /* XXX */ 236 ksi.cpuspeed = 40; /* XXX */ 237 ksi.hwflags = 0; /* XXX */ 238 ksi.physmem = ctob(physmem); 239 ksi.usermem = ctob(physmem); /* XXX */ 240 ksi.pagesize = PAGE_SIZE; 241 242 COPY(ostype); 243 COPY(osrelease); 244 ksi.os_revision = NetBSD; /* XXX */ 245 ksi.posix1_version = _POSIX_VERSION; 246 COPY(version); /* XXX */ 247 248 ksi.hz = hz; 249 ksi.profhz = profhz; 250 ksi.ngroups_max = NGROUPS_MAX; 251 ksi.arg_max = ARG_MAX; 252 ksi.open_max = OPEN_MAX; 253 ksi.child_max = CHILD_MAX; 254 255 ksi.boottime = boottime; 256 COPY(hostname); 257 258 size = (us - (char *) &usi[1]) + sizeof(ksi); 259 260 if ((error = copyout(&ksi, usi, sizeof(ksi))) != 0) 261 return error; 262 } 263 break; 264 265 default: 266 return (EOPNOTSUPP); 267 } 268 if (error) 269 return (error); 270 *retval = size; 271 if (SCARG(uap, size)) 272 error = copyout((caddr_t)&size, (caddr_t)SCARG(uap, size), 273 sizeof(size)); 274 return (error); 275 } 276 277 278 /* ARGSUSED */ 279 int 280 compat_43_sys_sethostid(struct lwp *l, void *v, register_t *retval) 281 { 282 struct compat_43_sys_sethostid_args /* { 283 syscallarg(int32_t) hostid; 284 } */ *uap = v; 285 struct proc *p = l->l_proc; 286 int error; 287 288 if ((error = suser(p->p_ucred, &p->p_acflag)) != 0) 289 return (error); 290 hostid = SCARG(uap, hostid); 291 return (0); 292 } 293 294 295 /* ARGSUSED */ 296 int 297 compat_43_sys_sethostname(struct lwp *l, void *v, register_t *retval) 298 { 299 struct compat_43_sys_sethostname_args *uap = v; 300 struct proc *p = l->l_proc; 301 int name; 302 int error; 303 304 if ((error = suser(p->p_ucred, &p->p_acflag)) != 0) 305 return (error); 306 name = KERN_HOSTNAME; 307 return (kern_sysctl(&name, 1, 0, 0, SCARG(uap, hostname), 308 SCARG(uap, len), l)); 309 } 310
Indexes created Wed Sep 24 14:09:57 GMT 2025