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 <sys/param.h>
38 #include <sys/systm.h>
39 #include <sys/sysproto.h>
40 #include <sys/kernel.h>
44 #include <sys/mutex.h>
45 #include <sys/socket.h>
46 #include <sys/sysctl.h>
47 #include <sys/utsname.h>
49 #include <vm/vm_param.h>
51 #if defined(COMPAT_43)
54 ogethostname(struct thread *td, struct ogethostname_args *uap)
57 size_t len = uap->len;
60 name[1] = KERN_HOSTNAME;
61 return (userland_sysctl(td, name, 2, uap->hostname, &len,
66 osethostname(struct thread *td, struct osethostname_args *uap)
71 name[1] = KERN_HOSTNAME;
72 return (userland_sysctl(td, name, 2, 0, 0, 0, uap->hostname,
76 #ifndef _SYS_SYSPROTO_H_
77 struct ogethostid_args {
83 ogethostid(struct thread *td, struct ogethostid_args *uap)
85 size_t len = sizeof(long);
89 name[1] = KERN_HOSTID;
90 return (kernel_sysctl(td, name, 2, (long *)td->td_retval, &len,
95 osethostid(struct thread *td, struct osethostid_args *uap)
100 name[1] = KERN_HOSTID;
101 return (kernel_sysctl(td, name, 2, NULL, NULL, &uap->hostid,
102 sizeof(uap->hostid), NULL, 0));
106 oquota(struct thread *td, struct oquota_args *uap)
112 #define KINFO_PROC (0<<8)
113 #define KINFO_RT (1<<8)
114 #define KINFO_VNODE (2<<8)
115 #define KINFO_FILE (3<<8)
116 #define KINFO_METER (4<<8)
117 #define KINFO_LOADAVG (5<<8)
118 #define KINFO_CLOCKRATE (6<<8)
120 /* Non-standard BSDI extension - only present on their 4.3 net-2 releases */
121 #define KINFO_BSDI_SYSINFO (101<<8)
124 * XXX this is bloat, but I hope it's better here than on the potentially
125 * limited kernel stack... -Peter
129 int bsdi_machine; /* "i386" on BSD/386 */
130 /* ^^^ this is an offset to the string, relative to the struct start */
139 int bsdi_ostype; /* "BSD/386" on BSD/386 */
140 int bsdi_osrelease; /* "1.1" on BSD/386 */
152 struct timeval pad16;
153 /* we dont set this, because BSDI's uname used gethostname() instead */
154 int bsdi_hostname; /* hostname on BSD/386 */
156 /* the actual string data is appended here */
161 * this data is appended to the end of the bsdi_si structure during copyout.
162 * The "char *" offsets are relative to the base of the bsdi_si struct.
163 * This contains "FreeBSD\02.0-BUILT-nnnnnn\0i386\0", and these strings
164 * should not exceed the length of the buffer here... (or else!! :-)
166 static char bsdi_strings[80]; /* It had better be less than this! */
169 ogetkerninfo(struct thread *td, struct ogetkerninfo_args *uap)
175 switch (uap->op & 0xff00) {
181 name[3] = (uap->op & 0xff0000) >> 16;
182 name[4] = uap->op & 0xff;
184 error = userland_sysctl(td, name, 6, uap->where, uap->size,
190 name[1] = KERN_VNODE;
191 error = userland_sysctl(td, name, 2, uap->where, uap->size,
198 name[2] = uap->op & 0xff;
200 error = userland_sysctl(td, name, 4, uap->where, uap->size,
207 error = userland_sysctl(td, name, 2, uap->where, uap->size,
214 error = userland_sysctl(td, name, 2, uap->where, uap->size,
220 name[1] = VM_LOADAVG;
221 error = userland_sysctl(td, name, 2, uap->where, uap->size,
225 case KINFO_CLOCKRATE:
227 name[1] = KERN_CLOCKRATE;
228 error = userland_sysctl(td, name, 2, uap->where, uap->size,
232 case KINFO_BSDI_SYSINFO: {
234 * this is pretty crude, but it's just enough for uname()
235 * from BSDI's 1.x libc to work.
237 * *size gives the size of the buffer before the call, and
238 * the amount of data copied after a successful call.
239 * If successful, the return value is the amount of data
240 * available, which can be larger than *size.
242 * BSDI's 2.x product apparently fails with ENOMEM if *size
249 bzero((char *)&bsdi_si, sizeof(bsdi_si));
250 bzero(bsdi_strings, sizeof(bsdi_strings));
254 bsdi_si.bsdi_ostype = (s - bsdi_strings) + sizeof(bsdi_si);
258 bsdi_si.bsdi_osrelease = (s - bsdi_strings) + sizeof(bsdi_si);
259 strcpy(s, osrelease);
262 bsdi_si.bsdi_machine = (s - bsdi_strings) + sizeof(bsdi_si);
266 needed = sizeof(bsdi_si) + (s - bsdi_strings);
268 if ((uap->where == NULL) || (uap->size == NULL)) {
269 /* process is asking how much buffer to supply.. */
275 if ((error = copyin(uap->size, &size, sizeof(size))) != 0)
278 /* if too much buffer supplied, trim it down */
282 /* how much of the buffer is remaining */
285 if ((error = copyout((char *)&bsdi_si, uap->where, left)) != 0)
288 /* is there any point in continuing? */
289 if (left > sizeof(bsdi_si)) {
290 left -= sizeof(bsdi_si);
291 error = copyout(&bsdi_strings,
292 uap->where + sizeof(bsdi_si), left);
302 td->td_retval[0] = needed ? needed : size;
304 error = copyout(&size, uap->size, sizeof(size));
309 #endif /* COMPAT_43 */
311 #ifdef COMPAT_FREEBSD4
313 * This is the FreeBSD-1.1 compatible uname(2) interface. These days it is
314 * done in libc as a wrapper around a bunch of sysctl's. This must maintain
315 * the old 1.1 binary ABI.
318 #error "FreeBSD-1.1 uname syscall has been broken"
320 #ifndef _SYS_SYSPROTO_H_
322 struct utsname *name;
327 freebsd4_uname(struct thread *td, struct freebsd4_uname_args *uap)
334 name[1] = KERN_OSTYPE;
335 len = sizeof (uap->name->sysname);
336 error = userland_sysctl(td, name, 2, uap->name->sysname, &len,
340 subyte( uap->name->sysname + sizeof(uap->name->sysname) - 1, 0);
342 name[1] = KERN_HOSTNAME;
343 len = sizeof uap->name->nodename;
344 error = userland_sysctl(td, name, 2, uap->name->nodename, &len,
348 subyte( uap->name->nodename + sizeof(uap->name->nodename) - 1, 0);
350 name[1] = KERN_OSRELEASE;
351 len = sizeof uap->name->release;
352 error = userland_sysctl(td, name, 2, uap->name->release, &len,
356 subyte( uap->name->release + sizeof(uap->name->release) - 1, 0);
360 len = sizeof uap->name->version;
361 error = userland_sysctl(td, name, 2, uap->name->version, &len,
365 subyte( uap->name->version + sizeof(uap->name->version) - 1, 0);
369 * this stupid hackery to make the version field look like FreeBSD 1.1
371 for(s = version; *s && *s != '#'; s++);
373 for(us = uap->name->version; *s && *s != ':'; s++) {
374 error = subyte( us++, *s);
378 error = subyte( us++, 0);
383 name[1] = HW_MACHINE;
384 len = sizeof uap->name->machine;
385 error = userland_sysctl(td, name, 2, uap->name->machine, &len,
389 subyte( uap->name->machine + sizeof(uap->name->machine) - 1, 0);
393 #ifndef _SYS_SYSPROTO_H_
394 struct getdomainname_args {
401 freebsd4_getdomainname(struct thread *td,
402 struct freebsd4_getdomainname_args *uap)
405 size_t len = uap->len;
408 name[1] = KERN_NISDOMAINNAME;
409 return (userland_sysctl(td, name, 2, uap->domainname, &len,
413 #ifndef _SYS_SYSPROTO_H_
414 struct setdomainname_args {
421 freebsd4_setdomainname(struct thread *td,
422 struct freebsd4_setdomainname_args *uap)
427 name[1] = KERN_NISDOMAINNAME;
428 return (userland_sysctl(td, name, 2, 0, 0, 0, uap->domainname,
431 #endif /* COMPAT_FREEBSD4 */