kern_info_43.c revision 1.17
1 /* $NetBSD: kern_info_43.c,v 1.17 2003/08/07 16:30:35 agc 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. Neither the name of the University nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 * 31 * @(#)subr_xxx.c 8.1 (Berkeley) 6/10/93 32 */ 33 34 #include <sys/cdefs.h> 35 __KERNEL_RCSID(0, "$NetBSD: kern_info_43.c,v 1.17 2003/08/07 16:30:35 agc Exp $"); 36 37 #include <sys/param.h> 38 #include <sys/systm.h> 39 #include <sys/filedesc.h> 40 #include <sys/kernel.h> 41 #include <sys/vnode.h> 42 #include <sys/proc.h> 43 #include <sys/file.h> 44 #include <sys/socket.h> 45 #include <sys/socketvar.h> 46 #include <sys/stat.h> 47 #include <sys/ioctl.h> 48 #include <sys/fcntl.h> 49 #include <sys/malloc.h> 50 #include <sys/syslog.h> 51 #include <sys/unistd.h> 52 #include <sys/resourcevar.h> 53 54 #include <uvm/uvm_extern.h> 55 #include <sys/sysctl.h> 56 57 #include <sys/mount.h> 58 #include <sys/sa.h> 59 #include <sys/syscallargs.h> 60 61 int 62 compat_43_sys_getdtablesize(struct lwp *l, void *v, register_t *retval) 63 { 64 struct proc *p = l->l_proc; 65 66 *retval = min((int)p->p_rlimit[RLIMIT_NOFILE].rlim_cur, maxfiles); 67 return (0); 68 } 69 70 71 /* ARGSUSED */ 72 int 73 compat_43_sys_gethostid(struct lwp *l, void *v, register_t *retval) 74 { 75 76 *(int32_t *)retval = hostid; 77 return (0); 78 } 79 80 81 /*ARGSUSED*/ 82 int 83 compat_43_sys_gethostname(struct lwp *l, void *v, register_t *retval) 84 { 85 struct compat_43_sys_gethostname_args /* { 86 syscallarg(char *) hostname; 87 syscallarg(u_int) len; 88 } */ *uap = v; 89 struct proc *p = l->l_proc; 90 int name; 91 size_t sz; 92 93 name = KERN_HOSTNAME; 94 sz = SCARG(uap, len); 95 return (kern_sysctl(&name, 1, SCARG(uap, hostname), &sz, 0, 0, p)); 96 } 97 98 #define KINFO_PROC (0<<8) 99 #define KINFO_RT (1<<8) 100 #define KINFO_VNODE (2<<8) 101 #define KINFO_FILE (3<<8) 102 #define KINFO_METER (4<<8) 103 #define KINFO_LOADAVG (5<<8) 104 #define KINFO_CLOCKRATE (6<<8) 105 #define KINFO_BSDI_SYSINFO (101<<8) 106 107 108 /* 109 * The string data is appended to the end of the bsdi_si structure during 110 * copyout. The "char *" offsets in the bsdi_si struct are relative to the 111 * base of the bsdi_si struct. 112 */ 113 struct bsdi_si { 114 char *machine; 115 char *cpu_model; 116 long ncpu; 117 long cpuspeed; 118 long hwflags; 119 u_long physmem; 120 u_long usermem; 121 u_long pagesize; 122 123 char *ostype; 124 char *osrelease; 125 long os_revision; 126 long posix1_version; 127 char *version; 128 129 long hz; 130 long profhz; 131 int ngroups_max; 132 long arg_max; 133 long open_max; 134 long child_max; 135 136 struct timeval boottime; 137 char *hostname; 138 }; 139 140 int 141 compat_43_sys_getkerninfo(struct lwp *l, void *v, register_t *retval) 142 { 143 struct compat_43_sys_getkerninfo_args /* { 144 syscallarg(int) op; 145 syscallarg(char *) where; 146 syscallarg(int *) size; 147 syscallarg(int) arg; 148 } */ *uap = v; 149 struct proc *p = l->l_proc; 150 int error, name[5]; 151 size_t size; 152 153 if (SCARG(uap, size) && (error = copyin((caddr_t)SCARG(uap, size), 154 (caddr_t)&size, sizeof(size)))) 155 return (error); 156 157 switch (SCARG(uap, op) & 0xff00) { 158 159 case KINFO_RT: 160 name[0] = PF_ROUTE; 161 name[1] = 0; 162 name[2] = (SCARG(uap, op) & 0xff0000) >> 16; 163 name[3] = SCARG(uap, op) & 0xff; 164 name[4] = SCARG(uap, arg); 165 error = 166 net_sysctl(name, 5, SCARG(uap, where), &size, NULL, 0, p); 167 break; 168 169 case KINFO_VNODE: 170 name[0] = KERN_VNODE; 171 error = 172 kern_sysctl(name, 1, SCARG(uap, where), &size, NULL, 0, p); 173 break; 174 175 case KINFO_PROC: 176 name[0] = KERN_PROC; 177 name[1] = SCARG(uap, op) & 0xff; 178 name[2] = SCARG(uap, arg); 179 error = 180 kern_sysctl(name, 3, SCARG(uap, where), &size, NULL, 0, p); 181 break; 182 183 case KINFO_FILE: 184 name[0] = KERN_FILE; 185 error = 186 kern_sysctl(name, 1, SCARG(uap, where), &size, NULL, 0, p); 187 break; 188 189 case KINFO_METER: 190 name[0] = VM_METER; 191 error = 192 uvm_sysctl(name, 1, SCARG(uap, where), &size, NULL, 0, p); 193 break; 194 195 case KINFO_LOADAVG: 196 name[0] = VM_LOADAVG; 197 error = 198 uvm_sysctl(name, 1, SCARG(uap, where), &size, NULL, 0, p); 199 break; 200 201 case KINFO_CLOCKRATE: 202 name[0] = KERN_CLOCKRATE; 203 error = 204 kern_sysctl(name, 1, SCARG(uap, where), &size, NULL, 0, p); 205 break; 206 207 208 case KINFO_BSDI_SYSINFO: 209 { 210 size_t len; 211 struct bsdi_si *usi = 212 (struct bsdi_si *) SCARG(uap, where); 213 struct bsdi_si ksi; 214 char *us = (char *) &usi[1]; 215 216 if (usi == NULL) { 217 size = sizeof(ksi) + 218 strlen(ostype) + strlen(cpu_model) + 219 strlen(osrelease) + strlen(machine) + 220 strlen(version) + strlen(hostname) + 6; 221 error = 0; 222 break; 223 } 224 225 #define COPY(fld) \ 226 ksi.fld = us - (u_long) usi; \ 227 if ((error = copyoutstr(fld, us, 1024, &len)) != 0)\ 228 return error; \ 229 us += len 230 231 COPY(machine); 232 COPY(cpu_model); 233 ksi.ncpu = 1; /* XXX */ 234 ksi.cpuspeed = 40; /* XXX */ 235 ksi.hwflags = 0; /* XXX */ 236 ksi.physmem = ctob(physmem); 237 ksi.usermem = ctob(physmem); /* XXX */ 238 ksi.pagesize = PAGE_SIZE; 239 240 COPY(ostype); 241 COPY(osrelease); 242 ksi.os_revision = NetBSD; /* XXX */ 243 ksi.posix1_version = _POSIX_VERSION; 244 COPY(version); /* XXX */ 245 246 ksi.hz = hz; 247 ksi.profhz = profhz; 248 ksi.ngroups_max = NGROUPS_MAX; 249 ksi.arg_max = ARG_MAX; 250 ksi.open_max = OPEN_MAX; 251 ksi.child_max = CHILD_MAX; 252 253 ksi.boottime = boottime; 254 COPY(hostname); 255 256 size = (us - (char *) &usi[1]) + sizeof(ksi); 257 258 if ((error = copyout(&ksi, usi, sizeof(ksi))) != 0) 259 return error; 260 } 261 break; 262 263 default: 264 return (EOPNOTSUPP); 265 } 266 if (error) 267 return (error); 268 *retval = size; 269 if (SCARG(uap, size)) 270 error = copyout((caddr_t)&size, (caddr_t)SCARG(uap, size), 271 sizeof(size)); 272 return (error); 273 } 274 275 276 /* ARGSUSED */ 277 int 278 compat_43_sys_sethostid(struct lwp *l, void *v, register_t *retval) 279 { 280 struct compat_43_sys_sethostid_args /* { 281 syscallarg(int32_t) hostid; 282 } */ *uap = v; 283 struct proc *p = l->l_proc; 284 int error; 285 286 if ((error = suser(p->p_ucred, &p->p_acflag)) != 0) 287 return (error); 288 hostid = SCARG(uap, hostid); 289 return (0); 290 } 291 292 293 /* ARGSUSED */ 294 int 295 compat_43_sys_sethostname(struct lwp *l, void *v, register_t *retval) 296 { 297 struct compat_43_sys_sethostname_args *uap = v; 298 struct proc *p = l->l_proc; 299 int name; 300 int error; 301 302 if ((error = suser(p->p_ucred, &p->p_acflag)) != 0) 303 return (error); 304 name = KERN_HOSTNAME; 305 return (kern_sysctl(&name, 1, 0, 0, SCARG(uap, hostname), 306 SCARG(uap, len), p)); 307 } 308
Indexes created Mon Sep 22 13:09:51 GMT 2025