kern_info_43.c revision 1.14
1 /* $NetBSD: kern_info_43.c,v 1.14 2003/01/18 07:28:34 thorpej 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 1.14 2003/01/18 07:28:34 thorpej 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 struct proc *p = l->l_proc; 94 int name; 95 size_t sz; 96 97 name = KERN_HOSTNAME; 98 sz = SCARG(uap, len); 99 return (kern_sysctl(&name, 1, SCARG(uap, hostname), &sz, 0, 0, p)); 100 } 101 102 #define KINFO_PROC (0<<8) 103 #define KINFO_RT (1<<8) 104 #define KINFO_VNODE (2<<8) 105 #define KINFO_FILE (3<<8) 106 #define KINFO_METER (4<<8) 107 #define KINFO_LOADAVG (5<<8) 108 #define KINFO_CLOCKRATE (6<<8) 109 #define KINFO_BSDI_SYSINFO (101<<8) 110 111 112 /* 113 * The string data is appended to the end of the bsdi_si structure during 114 * copyout. The "char *" offsets in the bsdi_si struct are relative to the 115 * base of the bsdi_si struct. 116 */ 117 struct bsdi_si { 118 char *machine; 119 char *cpu_model; 120 long ncpu; 121 long cpuspeed; 122 long hwflags; 123 u_long physmem; 124 u_long usermem; 125 u_long pagesize; 126 127 char *ostype; 128 char *osrelease; 129 long os_revision; 130 long posix1_version; 131 char *version; 132 133 long hz; 134 long profhz; 135 int ngroups_max; 136 long arg_max; 137 long open_max; 138 long child_max; 139 140 struct timeval boottime; 141 char *hostname; 142 }; 143 144 int 145 compat_43_sys_getkerninfo(struct lwp *l, void *v, register_t *retval) 146 { 147 struct compat_43_sys_getkerninfo_args /* { 148 syscallarg(int) op; 149 syscallarg(char *) where; 150 syscallarg(int *) size; 151 syscallarg(int) arg; 152 } */ *uap = v; 153 struct proc *p = l->l_proc; 154 int error, name[5]; 155 size_t size; 156 157 if (SCARG(uap, size) && (error = copyin((caddr_t)SCARG(uap, size), 158 (caddr_t)&size, sizeof(size)))) 159 return (error); 160 161 switch (SCARG(uap, op) & 0xff00) { 162 163 case KINFO_RT: 164 name[0] = PF_ROUTE; 165 name[1] = 0; 166 name[2] = (SCARG(uap, op) & 0xff0000) >> 16; 167 name[3] = SCARG(uap, op) & 0xff; 168 name[4] = SCARG(uap, arg); 169 error = 170 net_sysctl(name, 5, SCARG(uap, where), &size, NULL, 0, p); 171 break; 172 173 case KINFO_VNODE: 174 name[0] = KERN_VNODE; 175 error = 176 kern_sysctl(name, 1, SCARG(uap, where), &size, NULL, 0, p); 177 break; 178 179 case KINFO_PROC: 180 name[0] = KERN_PROC; 181 name[1] = SCARG(uap, op) & 0xff; 182 name[2] = SCARG(uap, arg); 183 error = 184 kern_sysctl(name, 3, SCARG(uap, where), &size, NULL, 0, p); 185 break; 186 187 case KINFO_FILE: 188 name[0] = KERN_FILE; 189 error = 190 kern_sysctl(name, 1, SCARG(uap, where), &size, NULL, 0, p); 191 break; 192 193 case KINFO_METER: 194 name[0] = VM_METER; 195 error = 196 uvm_sysctl(name, 1, SCARG(uap, where), &size, NULL, 0, p); 197 break; 198 199 case KINFO_LOADAVG: 200 name[0] = VM_LOADAVG; 201 error = 202 uvm_sysctl(name, 1, SCARG(uap, where), &size, NULL, 0, p); 203 break; 204 205 case KINFO_CLOCKRATE: 206 name[0] = KERN_CLOCKRATE; 207 error = 208 kern_sysctl(name, 1, SCARG(uap, where), &size, NULL, 0, p); 209 break; 210 211 212 case KINFO_BSDI_SYSINFO: 213 { 214 size_t len; 215 struct bsdi_si *usi = 216 (struct bsdi_si *) SCARG(uap, where); 217 struct bsdi_si ksi; 218 char *us = (char *) &usi[1]; 219 220 if (usi == NULL) { 221 size = sizeof(ksi) + 222 strlen(ostype) + strlen(cpu_model) + 223 strlen(osrelease) + strlen(machine) + 224 strlen(version) + strlen(hostname) + 6; 225 error = 0; 226 break; 227 } 228 229 #define COPY(fld) \ 230 ksi.fld = us - (u_long) usi; \ 231 if ((error = copyoutstr(fld, us, 1024, &len)) != 0)\ 232 return error; \ 233 us += len 234 235 COPY(machine); 236 COPY(cpu_model); 237 ksi.ncpu = 1; /* XXX */ 238 ksi.cpuspeed = 40; /* XXX */ 239 ksi.hwflags = 0; /* XXX */ 240 ksi.physmem = ctob(physmem); 241 ksi.usermem = ctob(physmem); /* XXX */ 242 ksi.pagesize = PAGE_SIZE; 243 244 COPY(ostype); 245 COPY(osrelease); 246 ksi.os_revision = NetBSD; /* XXX */ 247 ksi.posix1_version = _POSIX_VERSION; 248 COPY(version); /* XXX */ 249 250 ksi.hz = hz; 251 ksi.profhz = profhz; 252 ksi.ngroups_max = NGROUPS_MAX; 253 ksi.arg_max = ARG_MAX; 254 ksi.open_max = OPEN_MAX; 255 ksi.child_max = CHILD_MAX; 256 257 ksi.boottime = boottime; 258 COPY(hostname); 259 260 size = (us - (char *) &usi[1]) + sizeof(ksi); 261 262 if ((error = copyout(&ksi, usi, sizeof(ksi))) != 0) 263 return error; 264 } 265 break; 266 267 default: 268 return (EOPNOTSUPP); 269 } 270 if (error) 271 return (error); 272 *retval = size; 273 if (SCARG(uap, size)) 274 error = copyout((caddr_t)&size, (caddr_t)SCARG(uap, size), 275 sizeof(size)); 276 return (error); 277 } 278 279 280 /* ARGSUSED */ 281 int 282 compat_43_sys_sethostid(struct lwp *l, void *v, register_t *retval) 283 { 284 struct compat_43_sys_sethostid_args /* { 285 syscallarg(int32_t) hostid; 286 } */ *uap = v; 287 struct proc *p = l->l_proc; 288 int error; 289 290 if ((error = suser(p->p_ucred, &p->p_acflag)) != 0) 291 return (error); 292 hostid = SCARG(uap, hostid); 293 return (0); 294 } 295 296 297 /* ARGSUSED */ 298 int 299 compat_43_sys_sethostname(struct lwp *l, void *v, register_t *retval) 300 { 301 struct compat_43_sys_sethostname_args *uap = v; 302 struct proc *p = l->l_proc; 303 int name; 304 int error; 305 306 if ((error = suser(p->p_ucred, &p->p_acflag)) != 0) 307 return (error); 308 name = KERN_HOSTNAME; 309 return (kern_sysctl(&name, 1, 0, 0, SCARG(uap, hostname), 310 SCARG(uap, len), p)); 311 } 312
Indexes created Sun Sep 21 19:09:51 GMT 2025