Deleted Added
full compact
kern_xxx.c (127911) kern_xxx.c (130344)
1/*
2 * Copyright (c) 1982, 1986, 1989, 1993
3 * The Regents of the University of California. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 4. Neither the name of the University nor the names of its contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 *
29 * @(#)kern_xxx.c 8.2 (Berkeley) 11/14/93
30 */
31
32#include <sys/cdefs.h>
1/*
2 * Copyright (c) 1982, 1986, 1989, 1993
3 * The Regents of the University of California. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 4. Neither the name of the University nor the names of its contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 *
29 * @(#)kern_xxx.c 8.2 (Berkeley) 11/14/93
30 */
31
32#include <sys/cdefs.h>
33__FBSDID("$FreeBSD: head/sys/kern/kern_xxx.c 127911 2004-04-05 21:03:37Z imp $");
33__FBSDID("$FreeBSD: head/sys/kern/kern_xxx.c 130344 2004-06-11 11:16:26Z phk $");
34
35#include "opt_compat.h"
36
37#include <sys/param.h>
38#include <sys/systm.h>
39#include <sys/sysproto.h>
40#include <sys/kernel.h>
41#include <sys/proc.h>
42#include <sys/lock.h>
43#include <sys/mutex.h>
44#include <sys/sysctl.h>
45#include <sys/utsname.h>
46
47
34
35#include "opt_compat.h"
36
37#include <sys/param.h>
38#include <sys/systm.h>
39#include <sys/sysproto.h>
40#include <sys/kernel.h>
41#include <sys/proc.h>
42#include <sys/lock.h>
43#include <sys/mutex.h>
44#include <sys/sysctl.h>
45#include <sys/utsname.h>
46
47
48#if defined(COMPAT_43) || defined(COMPAT_SUNOS)
48#if defined(COMPAT_43)
49
50#ifndef _SYS_SYSPROTO_H_
51struct gethostname_args {
52 char *hostname;
53 u_int len;
54};
55#endif
56/*
57 * MPSAFE
58 */
59/* ARGSUSED */
60int
61ogethostname(td, uap)
62 struct thread *td;
63 struct gethostname_args *uap;
64{
65 int name[2];
66 int error;
67 size_t len = uap->len;
68
69 name[0] = CTL_KERN;
70 name[1] = KERN_HOSTNAME;
71 mtx_lock(&Giant);
72 error = userland_sysctl(td, name, 2, uap->hostname, &len, 1, 0, 0, 0);
73 mtx_unlock(&Giant);
74 return(error);
75}
76
77#ifndef _SYS_SYSPROTO_H_
78struct sethostname_args {
79 char *hostname;
80 u_int len;
81};
82#endif
83/*
84 * MPSAFE
85 */
86/* ARGSUSED */
87int
88osethostname(td, uap)
89 struct thread *td;
90 register struct sethostname_args *uap;
91{
92 int name[2];
93 int error;
94
95 name[0] = CTL_KERN;
96 name[1] = KERN_HOSTNAME;
97 mtx_lock(&Giant);
98 if ((error = suser_cred(td->td_ucred, PRISON_ROOT)) == 0) {
99 error = userland_sysctl(td, name, 2, 0, 0, 0,
100 uap->hostname, uap->len, 0);
101 }
102 mtx_unlock(&Giant);
103 return (error);
104}
105
106#ifndef _SYS_SYSPROTO_H_
107struct ogethostid_args {
108 int dummy;
109};
110#endif
111/*
112 * MPSAFE
113 */
114/* ARGSUSED */
115int
116ogethostid(td, uap)
117 struct thread *td;
118 struct ogethostid_args *uap;
119{
120
121 *(long *)(td->td_retval) = hostid;
122 return (0);
123}
49
50#ifndef _SYS_SYSPROTO_H_
51struct gethostname_args {
52 char *hostname;
53 u_int len;
54};
55#endif
56/*
57 * MPSAFE
58 */
59/* ARGSUSED */
60int
61ogethostname(td, uap)
62 struct thread *td;
63 struct gethostname_args *uap;
64{
65 int name[2];
66 int error;
67 size_t len = uap->len;
68
69 name[0] = CTL_KERN;
70 name[1] = KERN_HOSTNAME;
71 mtx_lock(&Giant);
72 error = userland_sysctl(td, name, 2, uap->hostname, &len, 1, 0, 0, 0);
73 mtx_unlock(&Giant);
74 return(error);
75}
76
77#ifndef _SYS_SYSPROTO_H_
78struct sethostname_args {
79 char *hostname;
80 u_int len;
81};
82#endif
83/*
84 * MPSAFE
85 */
86/* ARGSUSED */
87int
88osethostname(td, uap)
89 struct thread *td;
90 register struct sethostname_args *uap;
91{
92 int name[2];
93 int error;
94
95 name[0] = CTL_KERN;
96 name[1] = KERN_HOSTNAME;
97 mtx_lock(&Giant);
98 if ((error = suser_cred(td->td_ucred, PRISON_ROOT)) == 0) {
99 error = userland_sysctl(td, name, 2, 0, 0, 0,
100 uap->hostname, uap->len, 0);
101 }
102 mtx_unlock(&Giant);
103 return (error);
104}
105
106#ifndef _SYS_SYSPROTO_H_
107struct ogethostid_args {
108 int dummy;
109};
110#endif
111/*
112 * MPSAFE
113 */
114/* ARGSUSED */
115int
116ogethostid(td, uap)
117 struct thread *td;
118 struct ogethostid_args *uap;
119{
120
121 *(long *)(td->td_retval) = hostid;
122 return (0);
123}
124#endif /* COMPAT_43 || COMPAT_SUNOS */
124#endif /* COMPAT_43 */
125
126#ifdef COMPAT_43
127#ifndef _SYS_SYSPROTO_H_
128struct osethostid_args {
129 long hostid;
130};
131#endif
132/*
133 * MPSAFE
134 */
135/* ARGSUSED */
136int
137osethostid(td, uap)
138 struct thread *td;
139 struct osethostid_args *uap;
140{
141 int error;
142
143 if ((error = suser(td)))
144 return (error);
145 mtx_lock(&Giant);
146 hostid = uap->hostid;
147 mtx_unlock(&Giant);
148 return (0);
149}
150
151/*
152 * MPSAFE
153 */
154int
155oquota(td, uap)
156 struct thread *td;
157 struct oquota_args *uap;
158{
159 return (ENOSYS);
160}
161#endif /* COMPAT_43 */
162
163/*
164 * This is the FreeBSD-1.1 compatable uname(2) interface. These
165 * days it is done in libc as a wrapper around a bunch of sysctl's.
166 * This must maintain the old 1.1 binary ABI.
167 */
168#if SYS_NMLN != 32
169#error "FreeBSD-1.1 uname syscall has been broken"
170#endif
171#ifndef _SYS_SYSPROTO_H_
172struct uname_args {
173 struct utsname *name;
174};
175#endif
176
177/*
178 * MPSAFE
179 */
180/* ARGSUSED */
181int
182uname(td, uap)
183 struct thread *td;
184 struct uname_args *uap;
185{
186 int name[2], error;
187 size_t len;
188 char *s, *us;
189
190 name[0] = CTL_KERN;
191 name[1] = KERN_OSTYPE;
192 len = sizeof (uap->name->sysname);
193 mtx_lock(&Giant);
194 error = userland_sysctl(td, name, 2, uap->name->sysname, &len,
195 1, 0, 0, 0);
196 if (error)
197 goto done2;
198 subyte( uap->name->sysname + sizeof(uap->name->sysname) - 1, 0);
199
200 name[1] = KERN_HOSTNAME;
201 len = sizeof uap->name->nodename;
202 error = userland_sysctl(td, name, 2, uap->name->nodename, &len,
203 1, 0, 0, 0);
204 if (error)
205 goto done2;
206 subyte( uap->name->nodename + sizeof(uap->name->nodename) - 1, 0);
207
208 name[1] = KERN_OSRELEASE;
209 len = sizeof uap->name->release;
210 error = userland_sysctl(td, name, 2, uap->name->release, &len,
211 1, 0, 0, 0);
212 if (error)
213 goto done2;
214 subyte( uap->name->release + sizeof(uap->name->release) - 1, 0);
215
216/*
217 name = KERN_VERSION;
218 len = sizeof uap->name->version;
219 error = userland_sysctl(td, name, 2, uap->name->version, &len,
220 1, 0, 0, 0);
221 if (error)
222 goto done2;
223 subyte( uap->name->version + sizeof(uap->name->version) - 1, 0);
224*/
225
226/*
227 * this stupid hackery to make the version field look like FreeBSD 1.1
228 */
229 for(s = version; *s && *s != '#'; s++);
230
231 for(us = uap->name->version; *s && *s != ':'; s++) {
232 error = subyte( us++, *s);
233 if (error)
234 goto done2;
235 }
236 error = subyte( us++, 0);
237 if (error)
238 goto done2;
239
240 name[0] = CTL_HW;
241 name[1] = HW_MACHINE;
242 len = sizeof uap->name->machine;
243 error = userland_sysctl(td, name, 2, uap->name->machine, &len,
244 1, 0, 0, 0);
245 if (error)
246 goto done2;
247 subyte( uap->name->machine + sizeof(uap->name->machine) - 1, 0);
248done2:
249 mtx_unlock(&Giant);
250 return (error);
251}
252
253#ifndef _SYS_SYSPROTO_H_
254struct getdomainname_args {
255 char *domainname;
256 int len;
257};
258#endif
259
260/*
261 * MPSAFE
262 */
263/* ARGSUSED */
264int
265getdomainname(td, uap)
266 struct thread *td;
267 struct getdomainname_args *uap;
268{
269 int domainnamelen;
270 int error;
271
272 mtx_lock(&Giant);
273 domainnamelen = strlen(domainname) + 1;
274 if ((u_int)uap->len > domainnamelen)
275 uap->len = domainnamelen;
276 error = copyout(domainname, uap->domainname, uap->len);
277 mtx_unlock(&Giant);
278 return (error);
279}
280
281#ifndef _SYS_SYSPROTO_H_
282struct setdomainname_args {
283 char *domainname;
284 int len;
285};
286#endif
287
288/*
289 * MPSAFE
290 */
291/* ARGSUSED */
292int
293setdomainname(td, uap)
294 struct thread *td;
295 struct setdomainname_args *uap;
296{
297 int error, domainnamelen;
298
299 mtx_lock(&Giant);
300 if ((error = suser(td)))
301 goto done2;
302 if ((u_int)uap->len > sizeof (domainname) - 1) {
303 error = EINVAL;
304 goto done2;
305 }
306 domainnamelen = uap->len;
307 error = copyin(uap->domainname, domainname, uap->len);
308 domainname[domainnamelen] = 0;
309done2:
310 mtx_unlock(&Giant);
311 return (error);
312}
313
125
126#ifdef COMPAT_43
127#ifndef _SYS_SYSPROTO_H_
128struct osethostid_args {
129 long hostid;
130};
131#endif
132/*
133 * MPSAFE
134 */
135/* ARGSUSED */
136int
137osethostid(td, uap)
138 struct thread *td;
139 struct osethostid_args *uap;
140{
141 int error;
142
143 if ((error = suser(td)))
144 return (error);
145 mtx_lock(&Giant);
146 hostid = uap->hostid;
147 mtx_unlock(&Giant);
148 return (0);
149}
150
151/*
152 * MPSAFE
153 */
154int
155oquota(td, uap)
156 struct thread *td;
157 struct oquota_args *uap;
158{
159 return (ENOSYS);
160}
161#endif /* COMPAT_43 */
162
163/*
164 * This is the FreeBSD-1.1 compatable uname(2) interface. These
165 * days it is done in libc as a wrapper around a bunch of sysctl's.
166 * This must maintain the old 1.1 binary ABI.
167 */
168#if SYS_NMLN != 32
169#error "FreeBSD-1.1 uname syscall has been broken"
170#endif
171#ifndef _SYS_SYSPROTO_H_
172struct uname_args {
173 struct utsname *name;
174};
175#endif
176
177/*
178 * MPSAFE
179 */
180/* ARGSUSED */
181int
182uname(td, uap)
183 struct thread *td;
184 struct uname_args *uap;
185{
186 int name[2], error;
187 size_t len;
188 char *s, *us;
189
190 name[0] = CTL_KERN;
191 name[1] = KERN_OSTYPE;
192 len = sizeof (uap->name->sysname);
193 mtx_lock(&Giant);
194 error = userland_sysctl(td, name, 2, uap->name->sysname, &len,
195 1, 0, 0, 0);
196 if (error)
197 goto done2;
198 subyte( uap->name->sysname + sizeof(uap->name->sysname) - 1, 0);
199
200 name[1] = KERN_HOSTNAME;
201 len = sizeof uap->name->nodename;
202 error = userland_sysctl(td, name, 2, uap->name->nodename, &len,
203 1, 0, 0, 0);
204 if (error)
205 goto done2;
206 subyte( uap->name->nodename + sizeof(uap->name->nodename) - 1, 0);
207
208 name[1] = KERN_OSRELEASE;
209 len = sizeof uap->name->release;
210 error = userland_sysctl(td, name, 2, uap->name->release, &len,
211 1, 0, 0, 0);
212 if (error)
213 goto done2;
214 subyte( uap->name->release + sizeof(uap->name->release) - 1, 0);
215
216/*
217 name = KERN_VERSION;
218 len = sizeof uap->name->version;
219 error = userland_sysctl(td, name, 2, uap->name->version, &len,
220 1, 0, 0, 0);
221 if (error)
222 goto done2;
223 subyte( uap->name->version + sizeof(uap->name->version) - 1, 0);
224*/
225
226/*
227 * this stupid hackery to make the version field look like FreeBSD 1.1
228 */
229 for(s = version; *s && *s != '#'; s++);
230
231 for(us = uap->name->version; *s && *s != ':'; s++) {
232 error = subyte( us++, *s);
233 if (error)
234 goto done2;
235 }
236 error = subyte( us++, 0);
237 if (error)
238 goto done2;
239
240 name[0] = CTL_HW;
241 name[1] = HW_MACHINE;
242 len = sizeof uap->name->machine;
243 error = userland_sysctl(td, name, 2, uap->name->machine, &len,
244 1, 0, 0, 0);
245 if (error)
246 goto done2;
247 subyte( uap->name->machine + sizeof(uap->name->machine) - 1, 0);
248done2:
249 mtx_unlock(&Giant);
250 return (error);
251}
252
253#ifndef _SYS_SYSPROTO_H_
254struct getdomainname_args {
255 char *domainname;
256 int len;
257};
258#endif
259
260/*
261 * MPSAFE
262 */
263/* ARGSUSED */
264int
265getdomainname(td, uap)
266 struct thread *td;
267 struct getdomainname_args *uap;
268{
269 int domainnamelen;
270 int error;
271
272 mtx_lock(&Giant);
273 domainnamelen = strlen(domainname) + 1;
274 if ((u_int)uap->len > domainnamelen)
275 uap->len = domainnamelen;
276 error = copyout(domainname, uap->domainname, uap->len);
277 mtx_unlock(&Giant);
278 return (error);
279}
280
281#ifndef _SYS_SYSPROTO_H_
282struct setdomainname_args {
283 char *domainname;
284 int len;
285};
286#endif
287
288/*
289 * MPSAFE
290 */
291/* ARGSUSED */
292int
293setdomainname(td, uap)
294 struct thread *td;
295 struct setdomainname_args *uap;
296{
297 int error, domainnamelen;
298
299 mtx_lock(&Giant);
300 if ((error = suser(td)))
301 goto done2;
302 if ((u_int)uap->len > sizeof (domainname) - 1) {
303 error = EINVAL;
304 goto done2;
305 }
306 domainnamelen = uap->len;
307 error = copyin(uap->domainname, domainname, uap->len);
308 domainname[domainnamelen] = 0;
309done2:
310 mtx_unlock(&Giant);
311 return (error);
312}
313