2 * SPDX-License-Identifier: BSD-3-Clause
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31 * @(#)kern_xxx.c 8.2 (Berkeley) 11/14/93
34 #include <sys/cdefs.h>
35 __FBSDID("$FreeBSD$");
37 #include "opt_compat.h"
39 #include <sys/param.h>
40 #include <sys/systm.h>
41 #include <sys/sysproto.h>
42 #include <sys/kernel.h>
46 #include <sys/mutex.h>
47 #include <sys/socket.h>
48 #include <sys/sysctl.h>
49 #include <sys/utsname.h>
51 #include <vm/vm_param.h>
53 #if defined(COMPAT_43)
55 #ifndef _SYS_SYSPROTO_H_
56 struct gethostname_args {
63 ogethostname(struct thread *td, struct gethostname_args *uap)
66 size_t len = uap->len;
69 name[1] = KERN_HOSTNAME;
70 return (userland_sysctl(td, name, 2, uap->hostname, &len,
74 #ifndef _SYS_SYSPROTO_H_
75 struct sethostname_args {
82 osethostname(struct thread *td, struct sethostname_args *uap)
87 name[1] = KERN_HOSTNAME;
88 return (userland_sysctl(td, name, 2, 0, 0, 0, uap->hostname,
92 #ifndef _SYS_SYSPROTO_H_
93 struct ogethostid_args {
99 ogethostid(struct thread *td, struct ogethostid_args *uap)
101 size_t len = sizeof(long);
105 name[1] = KERN_HOSTID;
106 return (kernel_sysctl(td, name, 2, (long *)td->td_retval, &len,
109 #endif /* COMPAT_43 */
112 #ifndef _SYS_SYSPROTO_H_
113 struct osethostid_args {
119 osethostid(struct thread *td, struct osethostid_args *uap)
124 name[1] = KERN_HOSTID;
125 return (kernel_sysctl(td, name, 2, NULL, NULL, &uap->hostid,
126 sizeof(uap->hostid), NULL, 0));
130 oquota(struct thread *td, struct oquota_args *uap)
136 #define KINFO_PROC (0<<8)
137 #define KINFO_RT (1<<8)
138 #define KINFO_VNODE (2<<8)
139 #define KINFO_FILE (3<<8)
140 #define KINFO_METER (4<<8)
141 #define KINFO_LOADAVG (5<<8)
142 #define KINFO_CLOCKRATE (6<<8)
144 /* Non-standard BSDI extension - only present on their 4.3 net-2 releases */
145 #define KINFO_BSDI_SYSINFO (101<<8)
148 * XXX this is bloat, but I hope it's better here than on the potentially
149 * limited kernel stack... -Peter
153 int bsdi_machine; /* "i386" on BSD/386 */
154 /* ^^^ this is an offset to the string, relative to the struct start */
163 int bsdi_ostype; /* "BSD/386" on BSD/386 */
164 int bsdi_osrelease; /* "1.1" on BSD/386 */
176 struct timeval pad16;
177 /* we dont set this, because BSDI's uname used gethostname() instead */
178 int bsdi_hostname; /* hostname on BSD/386 */
180 /* the actual string data is appended here */
185 * this data is appended to the end of the bsdi_si structure during copyout.
186 * The "char *" offsets are relative to the base of the bsdi_si struct.
187 * This contains "FreeBSD\02.0-BUILT-nnnnnn\0i386\0", and these strings
188 * should not exceed the length of the buffer here... (or else!! :-)
190 static char bsdi_strings[80]; /* It had better be less than this! */
192 #ifndef _SYS_SYSPROTO_H_
193 struct getkerninfo_args {
201 ogetkerninfo(struct thread *td, struct getkerninfo_args *uap)
207 switch (uap->op & 0xff00) {
213 name[3] = (uap->op & 0xff0000) >> 16;
214 name[4] = uap->op & 0xff;
216 error = userland_sysctl(td, name, 6, uap->where, uap->size,
222 name[1] = KERN_VNODE;
223 error = userland_sysctl(td, name, 2, uap->where, uap->size,
230 name[2] = uap->op & 0xff;
232 error = userland_sysctl(td, name, 4, uap->where, uap->size,
239 error = userland_sysctl(td, name, 2, uap->where, uap->size,
246 error = userland_sysctl(td, name, 2, uap->where, uap->size,
252 name[1] = VM_LOADAVG;
253 error = userland_sysctl(td, name, 2, uap->where, uap->size,
257 case KINFO_CLOCKRATE:
259 name[1] = KERN_CLOCKRATE;
260 error = userland_sysctl(td, name, 2, uap->where, uap->size,
264 case KINFO_BSDI_SYSINFO: {
266 * this is pretty crude, but it's just enough for uname()
267 * from BSDI's 1.x libc to work.
269 * *size gives the size of the buffer before the call, and
270 * the amount of data copied after a successful call.
271 * If successful, the return value is the amount of data
272 * available, which can be larger than *size.
274 * BSDI's 2.x product apparently fails with ENOMEM if *size
281 bzero((char *)&bsdi_si, sizeof(bsdi_si));
282 bzero(bsdi_strings, sizeof(bsdi_strings));
286 bsdi_si.bsdi_ostype = (s - bsdi_strings) + sizeof(bsdi_si);
290 bsdi_si.bsdi_osrelease = (s - bsdi_strings) + sizeof(bsdi_si);
291 strcpy(s, osrelease);
294 bsdi_si.bsdi_machine = (s - bsdi_strings) + sizeof(bsdi_si);
298 needed = sizeof(bsdi_si) + (s - bsdi_strings);
300 if ((uap->where == NULL) || (uap->size == NULL)) {
301 /* process is asking how much buffer to supply.. */
307 if ((error = copyin(uap->size, &size, sizeof(size))) != 0)
310 /* if too much buffer supplied, trim it down */
314 /* how much of the buffer is remaining */
317 if ((error = copyout((char *)&bsdi_si, uap->where, left)) != 0)
320 /* is there any point in continuing? */
321 if (left > sizeof(bsdi_si)) {
322 left -= sizeof(bsdi_si);
323 error = copyout(&bsdi_strings,
324 uap->where + sizeof(bsdi_si), left);
334 td->td_retval[0] = needed ? needed : size;
336 error = copyout(&size, uap->size, sizeof(size));
341 #endif /* COMPAT_43 */
343 #ifdef COMPAT_FREEBSD4
345 * This is the FreeBSD-1.1 compatible uname(2) interface. These days it is
346 * done in libc as a wrapper around a bunch of sysctl's. This must maintain
347 * the old 1.1 binary ABI.
350 #error "FreeBSD-1.1 uname syscall has been broken"
352 #ifndef _SYS_SYSPROTO_H_
354 struct utsname *name;
359 freebsd4_uname(struct thread *td, struct freebsd4_uname_args *uap)
366 name[1] = KERN_OSTYPE;
367 len = sizeof (uap->name->sysname);
368 error = userland_sysctl(td, name, 2, uap->name->sysname, &len,
372 subyte( uap->name->sysname + sizeof(uap->name->sysname) - 1, 0);
374 name[1] = KERN_HOSTNAME;
375 len = sizeof uap->name->nodename;
376 error = userland_sysctl(td, name, 2, uap->name->nodename, &len,
380 subyte( uap->name->nodename + sizeof(uap->name->nodename) - 1, 0);
382 name[1] = KERN_OSRELEASE;
383 len = sizeof uap->name->release;
384 error = userland_sysctl(td, name, 2, uap->name->release, &len,
388 subyte( uap->name->release + sizeof(uap->name->release) - 1, 0);
392 len = sizeof uap->name->version;
393 error = userland_sysctl(td, name, 2, uap->name->version, &len,
397 subyte( uap->name->version + sizeof(uap->name->version) - 1, 0);
401 * this stupid hackery to make the version field look like FreeBSD 1.1
403 for(s = version; *s && *s != '#'; s++);
405 for(us = uap->name->version; *s && *s != ':'; s++) {
406 error = subyte( us++, *s);
410 error = subyte( us++, 0);
415 name[1] = HW_MACHINE;
416 len = sizeof uap->name->machine;
417 error = userland_sysctl(td, name, 2, uap->name->machine, &len,
421 subyte( uap->name->machine + sizeof(uap->name->machine) - 1, 0);
425 #ifndef _SYS_SYSPROTO_H_
426 struct getdomainname_args {
433 freebsd4_getdomainname(struct thread *td,
434 struct freebsd4_getdomainname_args *uap)
437 size_t len = uap->len;
440 name[1] = KERN_NISDOMAINNAME;
441 return (userland_sysctl(td, name, 2, uap->domainname, &len,
445 #ifndef _SYS_SYSPROTO_H_
446 struct setdomainname_args {
453 freebsd4_setdomainname(struct thread *td,
454 struct freebsd4_setdomainname_args *uap)
459 name[1] = KERN_NISDOMAINNAME;
460 return (userland_sysctl(td, name, 2, 0, 0, 0, uap->domainname,
463 #endif /* COMPAT_FREEBSD4 */