2 * Copyright (c) 1999 Marcel Moolenaar
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer
10 * in this position and unchanged.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * 3. The name of the author may not be used to endorse or promote products
15 * derived from this software without specific prior written permission.
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 * $FreeBSD: src/sys/compat/linux/linux_mib.c,v 1.7.2.2 2001/11/05 19:08:22 marcel Exp $
29 * $DragonFly: src/sys/emulation/linux/linux_mib.c,v 1.7 2003/08/15 06:32:51 dillon Exp $
32 #include <sys/param.h>
33 #include <sys/kernel.h>
34 #include <sys/systm.h>
35 #include <sys/sysctl.h>
37 #include <sys/malloc.h>
40 #include <arch_linux/linux.h>
41 #include "linux_mib.h"
44 char pr_osname
[LINUX_MAX_UTSNAME
];
45 char pr_osrelease
[LINUX_MAX_UTSNAME
];
49 SYSCTL_NODE(_compat
, OID_AUTO
, linux
, CTLFLAG_RW
, 0,
52 static char linux_osname
[LINUX_MAX_UTSNAME
] = "Linux";
55 linux_sysctl_osname(SYSCTL_HANDLER_ARGS
)
57 char osname
[LINUX_MAX_UTSNAME
];
60 strcpy(osname
, linux_get_osname(req
->td
));
61 error
= sysctl_handle_string(oidp
, osname
, LINUX_MAX_UTSNAME
, req
);
62 if (error
|| req
->newptr
== NULL
)
64 error
= linux_set_osname(req
->td
, osname
);
68 SYSCTL_PROC(_compat_linux
, OID_AUTO
, osname
,
69 CTLTYPE_STRING
| CTLFLAG_RW
| CTLFLAG_PRISON
,
70 0, 0, linux_sysctl_osname
, "A",
71 "Linux kernel OS name");
73 static char linux_osrelease
[LINUX_MAX_UTSNAME
] = "2.6.16";
76 linux_sysctl_osrelease(SYSCTL_HANDLER_ARGS
)
78 char osrelease
[LINUX_MAX_UTSNAME
];
81 strcpy(osrelease
, linux_get_osrelease(req
->td
));
82 error
= sysctl_handle_string(oidp
, osrelease
, LINUX_MAX_UTSNAME
, req
);
83 if (error
|| req
->newptr
== NULL
)
85 error
= linux_set_osrelease(req
->td
, osrelease
);
89 SYSCTL_PROC(_compat_linux
, OID_AUTO
, osrelease
,
90 CTLTYPE_STRING
| CTLFLAG_RW
| CTLFLAG_PRISON
,
91 0, 0, linux_sysctl_osrelease
, "A",
92 "Linux kernel OS release");
94 static int linux_oss_version
= 0x030600;
97 linux_sysctl_oss_version(SYSCTL_HANDLER_ARGS
)
102 oss_version
= linux_get_oss_version(req
->td
);
103 error
= sysctl_handle_int(oidp
, &oss_version
, 0, req
);
104 if (error
|| req
->newptr
== NULL
)
106 error
= linux_set_oss_version(req
->td
, oss_version
);
110 SYSCTL_PROC(_compat_linux
, OID_AUTO
, oss_version
,
111 CTLTYPE_INT
| CTLFLAG_RW
| CTLFLAG_PRISON
,
112 0, 0, linux_sysctl_oss_version
, "I",
113 "Linux OSS version");
115 static struct linux_prison
*
116 get_prison(struct thread
*td
)
119 struct linux_prison
*lpr
;
121 KKASSERT(td
->td_proc
);
122 pr
= td
->td_proc
->p_ucred
->cr_prison
;
126 if (pr
->pr_linux
== NULL
) {
127 MALLOC(lpr
, struct linux_prison
*, sizeof *lpr
,
128 M_PRISON
, M_WAITOK
|M_ZERO
);
132 return (pr
->pr_linux
);
136 linux_get_osname(struct thread
*td
)
139 struct linux_prison
*lpr
;
141 KKASSERT(td
->td_proc
);
142 pr
= td
->td_proc
->p_ucred
->cr_prison
;
143 if (pr
!= NULL
&& pr
->pr_linux
!= NULL
) {
145 if (lpr
->pr_osname
[0])
146 return (lpr
->pr_osname
);
149 return (linux_osname
);
153 linux_set_osname(struct thread
*td
, char *osname
)
155 struct linux_prison
*lpr
;
157 KKASSERT(td
->td_proc
);
158 lpr
= get_prison(td
);
160 strcpy(lpr
->pr_osname
, osname
);
162 strcpy(linux_osname
, osname
);
168 linux_get_osrelease(struct thread
*td
)
171 struct linux_prison
*lpr
;
173 KKASSERT(td
->td_proc
);
174 pr
= td
->td_proc
->p_ucred
->cr_prison
;
175 if (pr
!= NULL
&& pr
->pr_linux
!= NULL
) {
177 if (lpr
->pr_osrelease
[0])
178 return (lpr
->pr_osrelease
);
181 return (linux_osrelease
);
185 linux_set_osrelease(struct thread
*td
, char *osrelease
)
187 struct linux_prison
*lpr
;
189 lpr
= get_prison(td
);
191 strcpy(lpr
->pr_osrelease
, osrelease
);
193 strcpy(linux_osrelease
, osrelease
);
199 linux_get_oss_version(struct thread
*td
)
202 struct linux_prison
*lpr
;
204 KKASSERT(td
->td_proc
);
205 pr
= td
->td_proc
->p_ucred
->cr_prison
;
206 if (pr
!= NULL
&& pr
->pr_linux
!= NULL
) {
208 if (lpr
->pr_oss_version
)
209 return (lpr
->pr_oss_version
);
212 return (linux_oss_version
);
216 linux_set_oss_version(struct thread
*td
, int oss_version
)
218 struct linux_prison
*lpr
;
220 lpr
= get_prison(td
);
222 lpr
->pr_oss_version
= oss_version
;
224 linux_oss_version
= oss_version
;
231 u_char linux_debug_map
[howmany(LINUX_SYS_MAXSYSCALL
, sizeof(u_char
))];
234 linux_debug(int syscall
, int toggle
, int global
)
238 char c
= toggle
? 0 : 0xff;
240 memset(linux_debug_map
, c
, sizeof(linux_debug_map
));
243 if (syscall
< 0 || syscall
>= LINUX_SYS_MAXSYSCALL
)
246 clrbit(linux_debug_map
, syscall
);
248 setbit(linux_debug_map
, syscall
);
253 * Usage: sysctl -w linux.debug=<syscall_nr>.<0/1>
255 * E.g.: sysctl -w linux.debug=21.0
257 * As a special case, syscall "all" will apply to all syscalls globally.
259 #define LINUX_MAX_DEBUGSTR 16
261 linux_sysctl_debug(SYSCTL_HANDLER_ARGS
)
263 char value
[LINUX_MAX_DEBUGSTR
], *p
;
264 int error
, sysc
, toggle
;
268 error
= sysctl_handle_string(oidp
, value
, LINUX_MAX_DEBUGSTR
, req
);
269 if (error
|| req
->newptr
== NULL
)
271 for (p
= value
; *p
!= '\0' && *p
!= '.'; p
++);
275 sysc
= strtol(value
, NULL
, 0);
276 toggle
= strtol(p
, NULL
, 0);
277 if (strcmp(value
, "all") == 0)
279 error
= linux_debug(sysc
, toggle
, global
);
283 SYSCTL_PROC(_compat_linux
, OID_AUTO
, debug
,
284 CTLTYPE_STRING
| CTLFLAG_RW
,
285 0, 0, linux_sysctl_debug
, "A",
286 "Linux debugging control");