2 * Copyright (c) 1994-1995 Søren Schmidt
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 withough 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_misc.c,v 1.85.2.9 2002/09/24 08:11:41 mdodd Exp $
29 * $DragonFly: src/sys/emulation/linux/linux_misc.c,v 1.39 2007/06/26 19:31:03 dillon Exp $
32 #include "opt_compat.h"
34 #include <sys/param.h>
35 #include <sys/systm.h>
36 #include <sys/fcntl.h>
37 #include <sys/imgact_aout.h>
38 #include <sys/kernel.h>
39 #include <sys/kern_syscall.h>
42 #include <sys/mount.h>
46 #include <sys/nlookup.h>
47 #include <sys/blist.h>
48 #include <sys/reboot.h>
49 #include <sys/resourcevar.h>
50 #include <sys/signalvar.h>
51 #include <sys/signal2.h>
53 #include <sys/sysctl.h>
54 #include <sys/sysproto.h>
56 #include <sys/unistd.h>
57 #include <sys/vmmeter.h>
58 #include <sys/vnode.h>
60 #include <sys/thread2.h>
64 #include <vm/vm_kern.h>
65 #include <vm/vm_map.h>
66 #include <vm/vm_extern.h>
67 #include <vm/vm_object.h>
68 #include <vm/vm_zone.h>
69 #include <vm/swap_pager.h>
71 #include <machine/frame.h>
72 #include <machine/limits.h>
73 #include <machine/psl.h>
74 #include <machine/sysarch.h>
76 #include <machine/segments.h>
79 #include <sys/sched.h>
81 #include <emulation/linux/linux_sysproto.h>
82 #include <arch_linux/linux.h>
83 #include <arch_linux/linux_proto.h>
84 #include "linux_mib.h"
85 #include "linux_util.h"
87 #define BSD_TO_LINUX_SIGNAL(sig) \
88 (((sig) <= LINUX_SIGTBLSZ) ? bsd_to_linux_signal[_SIG_IDX(sig)] : sig)
90 static unsigned int linux_to_bsd_resource
[LINUX_RLIM_NLIMITS
] = {
91 RLIMIT_CPU
, RLIMIT_FSIZE
, RLIMIT_DATA
, RLIMIT_STACK
,
92 RLIMIT_CORE
, RLIMIT_RSS
, RLIMIT_NPROC
, RLIMIT_NOFILE
,
97 l_long uptime
; /* Seconds since boot */
98 l_ulong loads
[3]; /* 1, 5, and 15 minute load averages */
99 l_ulong totalram
; /* Total usable main memory size */
100 l_ulong freeram
; /* Available memory size */
101 l_ulong sharedram
; /* Amount of shared memory */
102 l_ulong bufferram
; /* Memory used by buffers */
103 l_ulong totalswap
; /* Total swap space size */
104 l_ulong freeswap
; /* swap space still available */
105 l_ushort procs
; /* Number of current processes */
106 char _f
[22]; /* Pads structure to 64 bytes */
110 sys_linux_sysinfo(struct linux_sysinfo_args
*args
)
112 struct l_sysinfo sysinfo
;
117 /* Uptime is copied out of print_uptime() in kern_shutdown.c */
120 if (ts
.tv_sec
>= 86400) {
124 if (i
|| ts
.tv_sec
>= 3600) {
128 if (i
|| ts
.tv_sec
>= 60) {
132 sysinfo
.uptime
=ts
.tv_sec
;
134 /* Use the information from the mib to get our load averages */
135 for (i
= 0; i
< 3; i
++)
136 sysinfo
.loads
[i
] = averunnable
.ldavg
[i
];
138 sysinfo
.totalram
= Maxmem
* PAGE_SIZE
;
139 sysinfo
.freeram
= sysinfo
.totalram
- vmstats
.v_wire_count
* PAGE_SIZE
;
141 sysinfo
.sharedram
= 0;
142 for (object
= TAILQ_FIRST(&vm_object_list
); object
!= NULL
;
143 object
= TAILQ_NEXT(object
, object_list
))
144 if (object
->shadow_count
> 1)
145 sysinfo
.sharedram
+= object
->resident_page_count
;
147 sysinfo
.sharedram
*= PAGE_SIZE
;
148 sysinfo
.bufferram
= 0;
150 if (swapblist
== NULL
) {
151 sysinfo
.totalswap
= 0;
152 sysinfo
.freeswap
= 0;
154 sysinfo
.totalswap
= swapblist
->bl_blocks
* 1024;
155 sysinfo
.freeswap
= swapblist
->bl_root
->u
.bmu_avail
* PAGE_SIZE
;
158 sysinfo
.procs
= 20; /* Hack */
160 return copyout(&sysinfo
, (caddr_t
)args
->info
, sizeof(sysinfo
));
164 sys_linux_alarm(struct linux_alarm_args
*args
)
166 struct thread
*td
= curthread
;
167 struct proc
*p
= td
->td_proc
;
168 struct itimerval it
, old_it
;
175 kprintf(ARGS(alarm
, "%u"), args
->secs
);
178 if (args
->secs
> 100000000)
181 it
.it_value
.tv_sec
= (long)args
->secs
;
182 it
.it_value
.tv_usec
= 0;
183 it
.it_interval
.tv_sec
= 0;
184 it
.it_interval
.tv_usec
= 0;
186 old_it
= p
->p_realtimer
;
188 if (timevalisset(&old_it
.it_value
))
189 callout_stop(&p
->p_ithandle
);
190 if (it
.it_value
.tv_sec
!= 0) {
191 callout_reset(&p
->p_ithandle
, tvtohz_high(&it
.it_value
),
193 timevaladd(&it
.it_value
, &tv
);
197 if (timevalcmp(&old_it
.it_value
, &tv
, >)) {
198 timevalsub(&old_it
.it_value
, &tv
);
199 if (old_it
.it_value
.tv_usec
!= 0)
200 old_it
.it_value
.tv_sec
++;
201 args
->sysmsg_result
= old_it
.it_value
.tv_sec
;
207 sys_linux_brk(struct linux_brk_args
*args
)
209 struct thread
*td
= curthread
;
210 struct proc
*p
= td
->td_proc
;
212 vm_offset_t
new, old
;
213 struct obreak_args bsd_args
;
219 kprintf(ARGS(brk
, "%p"), (void *)args
->dsend
);
221 old
= (vm_offset_t
)vm
->vm_daddr
+ ctob(vm
->vm_dsize
);
222 new = (vm_offset_t
)args
->dsend
;
223 bsd_args
.sysmsg_result
= 0;
224 bsd_args
.nsize
= (char *) new;
225 bsd_args
.sysmsg_result
= 0;
226 if (((caddr_t
)new > vm
->vm_daddr
) && !sys_obreak(&bsd_args
))
227 args
->sysmsg_result
= (long)new;
229 args
->sysmsg_result
= (long)old
;
235 sys_linux_uselib(struct linux_uselib_args
*args
)
237 struct thread
*td
= curthread
;
239 struct nlookupdata nd
;
244 unsigned long file_offset
;
246 unsigned long bss_size
;
251 KKASSERT(td
->td_proc
);
254 error
= linux_copyin_path(args
->library
, &path
, LINUX_PATH_EXISTS
);
259 kprintf(ARGS(uselib
, "%s"), path
);
266 error
= nlookup_init(&nd
, path
, UIO_SYSSPACE
, NLC_FOLLOW
);
267 nd
.nl_flags
|= NLC_EXEC
;
269 error
= nlookup(&nd
);
271 error
= cache_vget(&nd
.nl_nch
, nd
.nl_cred
, LK_EXCLUSIVE
, &vp
);
275 * From here on down, we have a locked vnode that must be unlocked.
280 if (vp
->v_writecount
) {
286 error
= VOP_GETATTR(vp
, &attr
);
290 if ((vp
->v_mount
->mnt_flag
& MNT_NOEXEC
) ||
291 ((attr
.va_mode
& 0111) == 0) || (attr
.va_type
!= VREG
)) {
297 if (attr
.va_size
== 0) {
302 error
= VOP_OPEN(vp
, FREAD
, p
->p_ucred
, NULL
);
307 * Lock no longer needed
312 /* Pull in executable header into kernel_map */
313 error
= vm_mmap(&kernel_map
, (vm_offset_t
*)&a_out
, PAGE_SIZE
,
314 VM_PROT_READ
, VM_PROT_READ
, 0, (caddr_t
)vp
, 0);
318 /* Is it a Linux binary ? */
319 if (((a_out
->a_magic
>> 16) & 0xff) != 0x64) {
325 * While we are here, we should REALLY do some more checks
328 /* Set file/virtual offset based on a.out variant. */
329 switch ((int)(a_out
->a_magic
& 0xffff)) {
330 case 0413: /* ZMAGIC */
333 case 0314: /* QMAGIC */
341 bss_size
= round_page(a_out
->a_bss
);
343 /* Check various fields in header for validity/bounds. */
344 if (a_out
->a_text
& PAGE_MASK
|| a_out
->a_data
& PAGE_MASK
) {
349 /* text + data can't exceed file size */
350 if (a_out
->a_data
+ a_out
->a_text
> attr
.va_size
) {
356 * text/data/bss must not exceed limits
357 * XXX - this is not complete. it should check current usage PLUS
358 * the resources needed by this library.
360 if (a_out
->a_text
> maxtsiz
||
361 a_out
->a_data
+ bss_size
> p
->p_rlimit
[RLIMIT_DATA
].rlim_cur
) {
366 /* prevent more writers */
370 * Check if file_offset page aligned. Currently we cannot handle
371 * misalinged file offsets, and so we read in the entire image
374 if (file_offset
& PAGE_MASK
) {
376 kprintf("uselib: Non page aligned binary %lu\n", file_offset
);
378 /* Map text+data read/write/execute */
380 /* a_entry is the load address and is page aligned */
381 vmaddr
= trunc_page(a_out
->a_entry
);
383 /* get anon user mapping, read+write+execute */
384 error
= vm_map_find(&p
->p_vmspace
->vm_map
, NULL
, 0,
385 &vmaddr
, a_out
->a_text
+ a_out
->a_data
,
388 VM_PROT_ALL
, VM_PROT_ALL
,
393 /* map file into kernel_map */
394 error
= vm_mmap(&kernel_map
, &buffer
,
395 round_page(a_out
->a_text
+ a_out
->a_data
+ file_offset
),
396 VM_PROT_READ
, VM_PROT_READ
, 0, (caddr_t
)vp
,
397 trunc_page(file_offset
));
401 /* copy from kernel VM space to user space */
402 error
= copyout((caddr_t
)(uintptr_t)(buffer
+ file_offset
),
403 (caddr_t
)vmaddr
, a_out
->a_text
+ a_out
->a_data
);
405 /* release temporary kernel space */
406 vm_map_remove(&kernel_map
, buffer
, buffer
+
407 round_page(a_out
->a_text
+ a_out
->a_data
+ file_offset
));
413 kprintf("uselib: Page aligned binary %lu\n", file_offset
);
416 * for QMAGIC, a_entry is 20 bytes beyond the load address
417 * to skip the executable header
419 vmaddr
= trunc_page(a_out
->a_entry
);
422 * Map it all into the process's space as a single
423 * copy-on-write "data" segment.
425 error
= vm_mmap(&p
->p_vmspace
->vm_map
, &vmaddr
,
426 a_out
->a_text
+ a_out
->a_data
, VM_PROT_ALL
, VM_PROT_ALL
,
427 MAP_PRIVATE
| MAP_FIXED
, (caddr_t
)vp
, file_offset
);
432 kprintf("mem=%08lx = %08lx %08lx\n", (long)vmaddr
, ((long*)vmaddr
)[0],
436 /* Calculate BSS start address */
437 vmaddr
= trunc_page(a_out
->a_entry
) + a_out
->a_text
+
440 /* allocate some 'anon' space */
441 error
= vm_map_find(&p
->p_vmspace
->vm_map
, NULL
, 0,
445 VM_PROT_ALL
, VM_PROT_ALL
,
452 /* Unlock/release vnode */
458 /* Release the kernel mapping. */
460 vm_map_remove(&kernel_map
, (vm_offset_t
)a_out
,
461 (vm_offset_t
)a_out
+ PAGE_SIZE
);
464 linux_free_path(&path
);
469 sys_linux_select(struct linux_select_args
*args
)
471 struct select_args bsa
;
472 struct timeval tv0
, tv1
, utv
, *tvp
;
478 kprintf(ARGS(select
, "%d, %p, %p, %p, %p"), args
->nfds
,
479 (void *)args
->readfds
, (void *)args
->writefds
,
480 (void *)args
->exceptfds
, (void *)args
->timeout
);
484 bsa
.sysmsg_result
= 0;
486 bsa
.in
= args
->readfds
;
487 bsa
.ou
= args
->writefds
;
488 bsa
.ex
= args
->exceptfds
;
489 bsa
.tv
= (struct timeval
*)args
->timeout
;
492 * Store current time for computation of the amount of
496 if ((error
= copyin((caddr_t
)args
->timeout
, &utv
,
501 kprintf(LMSG("incoming timeout (%ld/%ld)"),
502 utv
.tv_sec
, utv
.tv_usec
);
505 if (itimerfix(&utv
)) {
507 * The timeval was invalid. Convert it to something
508 * valid that will act as it does under Linux.
510 sg
= stackgap_init();
511 tvp
= stackgap_alloc(&sg
, sizeof(utv
));
512 utv
.tv_sec
+= utv
.tv_usec
/ 1000000;
513 utv
.tv_usec
%= 1000000;
514 if (utv
.tv_usec
< 0) {
516 utv
.tv_usec
+= 1000000;
520 if ((error
= copyout(&utv
, tvp
, sizeof(utv
))))
527 error
= sys_select(&bsa
);
528 args
->sysmsg_result
= bsa
.sysmsg_result
;
531 kprintf(LMSG("real select returns %d"), error
);
535 * See fs/select.c in the Linux kernel. Without this,
536 * Maelstrom doesn't work.
538 if (error
== ERESTART
)
544 if (args
->sysmsg_result
) {
546 * Compute how much time was left of the timeout,
547 * by subtracting the current time and the time
548 * before we started the call, and subtracting
549 * that result from the user-supplied value.
552 timevalsub(&tv1
, &tv0
);
553 timevalsub(&utv
, &tv1
);
560 kprintf(LMSG("outgoing timeout (%ld/%ld)"),
561 utv
.tv_sec
, utv
.tv_usec
);
563 if ((error
= copyout(&utv
, (caddr_t
)args
->timeout
,
571 kprintf(LMSG("select_out -> %d"), error
);
577 sys_linux_mremap(struct linux_mremap_args
*args
)
579 struct munmap_args bsd_args
;
584 kprintf(ARGS(mremap
, "%p, %08lx, %08lx, %08lx"),
586 (unsigned long)args
->old_len
,
587 (unsigned long)args
->new_len
,
588 (unsigned long)args
->flags
);
590 args
->new_len
= round_page(args
->new_len
);
591 args
->old_len
= round_page(args
->old_len
);
593 if (args
->new_len
> args
->old_len
) {
594 args
->sysmsg_result
= 0;
598 if (args
->new_len
< args
->old_len
) {
599 bsd_args
.sysmsg_result
= 0;
600 bsd_args
.addr
= (caddr_t
)(args
->addr
+ args
->new_len
);
601 bsd_args
.len
= args
->old_len
- args
->new_len
;
602 error
= sys_munmap(&bsd_args
);
605 args
->sysmsg_resultp
= error
? NULL
: (void *)args
->addr
;
609 #define LINUX_MS_ASYNC 0x0001
610 #define LINUX_MS_INVALIDATE 0x0002
611 #define LINUX_MS_SYNC 0x0004
614 sys_linux_msync(struct linux_msync_args
*args
)
616 struct msync_args bsd_args
;
619 bsd_args
.addr
= (caddr_t
)args
->addr
;
620 bsd_args
.len
= args
->len
;
621 bsd_args
.flags
= args
->fl
& ~LINUX_MS_SYNC
;
622 bsd_args
.sysmsg_result
= 0;
624 error
= sys_msync(&bsd_args
);
625 args
->sysmsg_result
= bsd_args
.sysmsg_result
;
630 sys_linux_time(struct linux_time_args
*args
)
638 kprintf(ARGS(time
, "*"));
643 if (args
->tm
&& (error
= copyout(&tm
, (caddr_t
)args
->tm
, sizeof(tm
))))
645 args
->sysmsg_lresult
= tm
;
649 struct l_times_argv
{
656 #define CLK_TCK 100 /* Linux uses 100 */
658 #define CONVTCK(r) (r.tv_sec * CLK_TCK + r.tv_usec / (1000000 / CLK_TCK))
661 sys_linux_times(struct linux_times_args
*args
)
663 struct thread
*td
= curthread
;
664 struct proc
*p
= td
->td_proc
;
666 struct l_times_argv tms
;
673 kprintf(ARGS(times
, "*"));
678 tms
.tms_utime
= CONVTCK(ru
.ru_utime
);
679 tms
.tms_stime
= CONVTCK(ru
.ru_stime
);
681 tms
.tms_cutime
= CONVTCK(p
->p_cru
.ru_utime
);
682 tms
.tms_cstime
= CONVTCK(p
->p_cru
.ru_stime
);
684 if ((error
= copyout(&tms
, (caddr_t
)args
->buf
, sizeof(tms
))))
688 args
->sysmsg_result
= (int)CONVTCK(tv
);
693 sys_linux_newuname(struct linux_newuname_args
*args
)
695 struct thread
*td
= curthread
;
696 struct l_new_utsname utsname
;
697 char *osrelease
, *osname
;
700 if (ldebug(newuname
))
701 kprintf(ARGS(newuname
, "*"));
704 osname
= linux_get_osname(td
);
705 osrelease
= linux_get_osrelease(td
);
707 bzero(&utsname
, sizeof(utsname
));
708 strncpy(utsname
.sysname
, osname
, LINUX_MAX_UTSNAME
-1);
709 strncpy(utsname
.nodename
, hostname
, LINUX_MAX_UTSNAME
-1);
710 strncpy(utsname
.release
, osrelease
, LINUX_MAX_UTSNAME
-1);
711 strncpy(utsname
.version
, version
, LINUX_MAX_UTSNAME
-1);
712 strncpy(utsname
.machine
, machine
, LINUX_MAX_UTSNAME
-1);
713 strncpy(utsname
.domainname
, domainname
, LINUX_MAX_UTSNAME
-1);
715 return (copyout(&utsname
, (caddr_t
)args
->buf
, sizeof(utsname
)));
718 #if defined(__i386__)
725 sys_linux_utime(struct linux_utime_args
*args
)
727 struct timeval tv
[2];
728 struct l_utimbuf lut
;
729 struct nlookupdata nd
;
733 error
= linux_copyin_path(args
->fname
, &path
, LINUX_PATH_EXISTS
);
738 kprintf(ARGS(utime
, "%s, *"), path
);
742 error
= copyin(args
->times
, &lut
, sizeof(lut
));
745 tv
[0].tv_sec
= lut
.l_actime
;
747 tv
[1].tv_sec
= lut
.l_modtime
;
750 error
= nlookup_init(&nd
, path
, UIO_SYSSPACE
, NLC_FOLLOW
);
752 error
= kern_utimes(&nd
, args
->times
? tv
: NULL
);
755 linux_free_path(&path
);
758 #endif /* __i386__ */
760 #define __WCLONE 0x80000000
763 sys_linux_waitpid(struct linux_waitpid_args
*args
)
765 int error
, options
, status
;
769 kprintf(ARGS(waitpid
, "%d, %p, %d"),
770 args
->pid
, (void *)args
->status
, args
->options
);
772 options
= args
->options
& (WNOHANG
| WUNTRACED
);
773 /* WLINUXCLONE should be equal to __WCLONE, but we make sure */
774 if (args
->options
& __WCLONE
)
775 options
|= WLINUXCLONE
;
777 error
= kern_wait(args
->pid
, args
->status
? &status
: NULL
, options
,
778 NULL
, &args
->sysmsg_result
);
780 if (error
== 0 && args
->status
) {
782 if (WIFSIGNALED(status
))
783 status
= (status
& 0xffffff80) |
784 BSD_TO_LINUX_SIGNAL(WTERMSIG(status
));
785 else if (WIFSTOPPED(status
))
786 status
= (status
& 0xffff00ff) |
787 (BSD_TO_LINUX_SIGNAL(WSTOPSIG(status
)) << 8);
788 error
= copyout(&status
, args
->status
, sizeof(status
));
795 sys_linux_wait4(struct linux_wait4_args
*args
)
797 struct thread
*td
= curthread
;
798 struct lwp
*lp
= td
->td_lwp
;
799 struct rusage rusage
;
800 int error
, options
, status
;
806 kprintf(ARGS(wait4
, "%d, %p, %d, %p"),
807 args
->pid
, (void *)args
->status
, args
->options
,
808 (void *)args
->rusage
);
810 options
= args
->options
& (WNOHANG
| WUNTRACED
);
811 /* WLINUXCLONE should be equal to __WCLONE, but we make sure */
812 if (args
->options
& __WCLONE
)
813 options
|= WLINUXCLONE
;
815 error
= kern_wait(args
->pid
, args
->status
? &status
: NULL
, options
,
816 args
->rusage
? &rusage
: NULL
, &args
->sysmsg_result
);
819 lwp_delsig(lp
, SIGCHLD
);
821 if (error
== 0 && args
->status
) {
823 if (WIFSIGNALED(status
))
824 status
= (status
& 0xffffff80) |
825 BSD_TO_LINUX_SIGNAL(WTERMSIG(status
));
826 else if (WIFSTOPPED(status
))
827 status
= (status
& 0xffff00ff) |
828 (BSD_TO_LINUX_SIGNAL(WSTOPSIG(status
)) << 8);
829 error
= copyout(&status
, args
->status
, sizeof(status
));
831 if (error
== 0 && args
->rusage
)
832 error
= copyout(&rusage
, args
->rusage
, sizeof(rusage
));
838 sys_linux_mknod(struct linux_mknod_args
*args
)
840 struct nlookupdata nd
;
844 error
= linux_copyin_path(args
->path
, &path
, LINUX_PATH_CREATE
);
849 kprintf(ARGS(mknod
, "%s, %d, %d"),
850 path
, args
->mode
, args
->dev
);
852 error
= nlookup_init(&nd
, path
, UIO_SYSSPACE
, 0);
854 if (args
->mode
& S_IFIFO
) {
855 error
= kern_mkfifo(&nd
, args
->mode
);
857 error
= kern_mknod(&nd
, args
->mode
,
864 linux_free_path(&path
);
869 * UGH! This is just about the dumbest idea I've ever heard!!
872 sys_linux_personality(struct linux_personality_args
*args
)
875 if (ldebug(personality
))
876 kprintf(ARGS(personality
, "%d"), args
->per
);
881 /* Yes Jim, it's still a Linux... */
882 args
->sysmsg_result
= 0;
887 * Wrappers for get/setitimer for debugging..
890 sys_linux_setitimer(struct linux_setitimer_args
*args
)
892 struct setitimer_args bsa
;
893 struct itimerval foo
;
897 if (ldebug(setitimer
))
898 kprintf(ARGS(setitimer
, "%p, %p"),
899 (void *)args
->itv
, (void *)args
->oitv
);
901 bsa
.which
= args
->which
;
902 bsa
.itv
= (struct itimerval
*)args
->itv
;
903 bsa
.oitv
= (struct itimerval
*)args
->oitv
;
904 bsa
.sysmsg_result
= 0;
906 if ((error
= copyin((caddr_t
)args
->itv
, &foo
, sizeof(foo
))))
909 if (ldebug(setitimer
)) {
910 kprintf("setitimer: value: sec: %ld, usec: %ld\n",
911 foo
.it_value
.tv_sec
, foo
.it_value
.tv_usec
);
912 kprintf("setitimer: interval: sec: %ld, usec: %ld\n",
913 foo
.it_interval
.tv_sec
, foo
.it_interval
.tv_usec
);
917 error
= sys_setitimer(&bsa
);
918 args
->sysmsg_result
= bsa
.sysmsg_result
;
923 sys_linux_getitimer(struct linux_getitimer_args
*args
)
925 struct getitimer_args bsa
;
928 if (ldebug(getitimer
))
929 kprintf(ARGS(getitimer
, "%p"), (void *)args
->itv
);
931 bsa
.which
= args
->which
;
932 bsa
.itv
= (struct itimerval
*)args
->itv
;
933 bsa
.sysmsg_result
= 0;
934 error
= sys_getitimer(&bsa
);
935 args
->sysmsg_result
= bsa
.sysmsg_result
;
940 sys_linux_nice(struct linux_nice_args
*args
)
942 struct setpriority_args bsd_args
;
945 bsd_args
.which
= PRIO_PROCESS
;
946 bsd_args
.who
= 0; /* current process */
947 bsd_args
.prio
= args
->inc
;
948 bsd_args
.sysmsg_result
= 0;
949 error
= sys_setpriority(&bsd_args
);
950 args
->sysmsg_result
= bsd_args
.sysmsg_result
;
955 sys_linux_setgroups(struct linux_setgroups_args
*args
)
957 struct thread
*td
= curthread
;
958 struct proc
*p
= td
->td_proc
;
959 struct ucred
*newcred
, *oldcred
;
960 l_gid_t linux_gidset
[NGROUPS
];
966 ngrp
= args
->gidsetsize
;
967 oldcred
= p
->p_ucred
;
970 * cr_groups[0] holds egid. Setting the whole set from
971 * the supplied set will cause egid to be changed too.
972 * Keep cr_groups[0] unchanged to prevent that.
975 if ((error
= priv_check_cred(oldcred
, PRIV_CRED_SETGROUPS
, 0)) != 0)
981 newcred
= crdup(oldcred
);
983 error
= copyin((caddr_t
)args
->grouplist
, linux_gidset
,
984 ngrp
* sizeof(l_gid_t
));
988 newcred
->cr_ngroups
= ngrp
+ 1;
990 bsd_gidset
= newcred
->cr_groups
;
993 bsd_gidset
[ngrp
+ 1] = linux_gidset
[ngrp
];
997 newcred
->cr_ngroups
= 1;
1001 p
->p_ucred
= newcred
;
1007 sys_linux_getgroups(struct linux_getgroups_args
*args
)
1009 struct thread
*td
= curthread
;
1010 struct proc
*p
= td
->td_proc
;
1012 l_gid_t linux_gidset
[NGROUPS
];
1014 int bsd_gidsetsz
, ngrp
, error
;
1019 bsd_gidset
= cred
->cr_groups
;
1020 bsd_gidsetsz
= cred
->cr_ngroups
- 1;
1023 * cr_groups[0] holds egid. Returning the whole set
1024 * here will cause a duplicate. Exclude cr_groups[0]
1028 if ((ngrp
= args
->gidsetsize
) == 0) {
1029 args
->sysmsg_result
= bsd_gidsetsz
;
1033 if (ngrp
< bsd_gidsetsz
)
1037 while (ngrp
< bsd_gidsetsz
) {
1038 linux_gidset
[ngrp
] = bsd_gidset
[ngrp
+ 1];
1042 if ((error
= copyout(linux_gidset
, (caddr_t
)args
->grouplist
,
1043 ngrp
* sizeof(l_gid_t
))))
1046 args
->sysmsg_result
= ngrp
;
1051 sys_linux_setrlimit(struct linux_setrlimit_args
*args
)
1053 struct l_rlimit linux_rlim
;
1059 if (ldebug(setrlimit
))
1060 kprintf(ARGS(setrlimit
, "%d, %p"),
1061 args
->resource
, (void *)args
->rlim
);
1063 if (args
->resource
>= LINUX_RLIM_NLIMITS
)
1065 which
= linux_to_bsd_resource
[args
->resource
];
1069 error
= copyin(args
->rlim
, &linux_rlim
, sizeof(linux_rlim
));
1072 rlim
.rlim_cur
= (rlim_t
)linux_rlim
.rlim_cur
;
1073 rlim
.rlim_max
= (rlim_t
)linux_rlim
.rlim_max
;
1075 error
= kern_setrlimit(which
, &rlim
);
1081 sys_linux_old_getrlimit(struct linux_old_getrlimit_args
*args
)
1083 struct l_rlimit linux_rlim
;
1089 if (ldebug(old_getrlimit
))
1090 kprintf(ARGS(old_getrlimit
, "%d, %p"),
1091 args
->resource
, (void *)args
->rlim
);
1093 if (args
->resource
>= LINUX_RLIM_NLIMITS
)
1095 which
= linux_to_bsd_resource
[args
->resource
];
1099 error
= kern_getrlimit(which
, &rlim
);
1102 linux_rlim
.rlim_cur
= (l_ulong
)rlim
.rlim_cur
;
1103 if (linux_rlim
.rlim_cur
== ULONG_MAX
)
1104 linux_rlim
.rlim_cur
= LONG_MAX
;
1105 linux_rlim
.rlim_max
= (l_ulong
)rlim
.rlim_max
;
1106 if (linux_rlim
.rlim_max
== ULONG_MAX
)
1107 linux_rlim
.rlim_max
= LONG_MAX
;
1108 error
= copyout(&linux_rlim
, args
->rlim
, sizeof(linux_rlim
));
1114 sys_linux_getrlimit(struct linux_getrlimit_args
*args
)
1116 struct l_rlimit linux_rlim
;
1122 if (ldebug(getrlimit
))
1123 kprintf(ARGS(getrlimit
, "%d, %p"),
1124 args
->resource
, (void *)args
->rlim
);
1126 if (args
->resource
>= LINUX_RLIM_NLIMITS
)
1128 which
= linux_to_bsd_resource
[args
->resource
];
1132 error
= kern_getrlimit(which
, &rlim
);
1135 linux_rlim
.rlim_cur
= (l_ulong
)rlim
.rlim_cur
;
1136 linux_rlim
.rlim_max
= (l_ulong
)rlim
.rlim_max
;
1137 error
= copyout(&linux_rlim
, args
->rlim
, sizeof(linux_rlim
));
1143 sys_linux_sched_setscheduler(struct linux_sched_setscheduler_args
*args
)
1145 struct sched_setscheduler_args bsd
;
1149 if (ldebug(sched_setscheduler
))
1150 kprintf(ARGS(sched_setscheduler
, "%d, %d, %p"),
1151 args
->pid
, args
->policy
, (const void *)args
->param
);
1154 switch (args
->policy
) {
1155 case LINUX_SCHED_OTHER
:
1156 bsd
.policy
= SCHED_OTHER
;
1158 case LINUX_SCHED_FIFO
:
1159 bsd
.policy
= SCHED_FIFO
;
1161 case LINUX_SCHED_RR
:
1162 bsd
.policy
= SCHED_RR
;
1168 bsd
.pid
= args
->pid
;
1169 bsd
.param
= (struct sched_param
*)args
->param
;
1170 bsd
.sysmsg_result
= 0;
1172 error
= sys_sched_setscheduler(&bsd
);
1173 args
->sysmsg_result
= bsd
.sysmsg_result
;
1178 sys_linux_sched_getscheduler(struct linux_sched_getscheduler_args
*args
)
1180 struct sched_getscheduler_args bsd
;
1184 if (ldebug(sched_getscheduler
))
1185 kprintf(ARGS(sched_getscheduler
, "%d"), args
->pid
);
1188 bsd
.sysmsg_result
= 0;
1189 bsd
.pid
= args
->pid
;
1190 error
= sys_sched_getscheduler(&bsd
);
1191 args
->sysmsg_result
= bsd
.sysmsg_result
;
1193 switch (args
->sysmsg_result
) {
1195 args
->sysmsg_result
= LINUX_SCHED_OTHER
;
1198 args
->sysmsg_result
= LINUX_SCHED_FIFO
;
1201 args
->sysmsg_result
= LINUX_SCHED_RR
;
1208 sys_linux_sched_get_priority_max(struct linux_sched_get_priority_max_args
*args
)
1210 struct sched_get_priority_max_args bsd
;
1214 if (ldebug(sched_get_priority_max
))
1215 kprintf(ARGS(sched_get_priority_max
, "%d"), args
->policy
);
1218 switch (args
->policy
) {
1219 case LINUX_SCHED_OTHER
:
1220 bsd
.policy
= SCHED_OTHER
;
1222 case LINUX_SCHED_FIFO
:
1223 bsd
.policy
= SCHED_FIFO
;
1225 case LINUX_SCHED_RR
:
1226 bsd
.policy
= SCHED_RR
;
1231 bsd
.sysmsg_result
= 0;
1233 error
= sys_sched_get_priority_max(&bsd
);
1234 args
->sysmsg_result
= bsd
.sysmsg_result
;
1239 sys_linux_sched_get_priority_min(struct linux_sched_get_priority_min_args
*args
)
1241 struct sched_get_priority_min_args bsd
;
1245 if (ldebug(sched_get_priority_min
))
1246 kprintf(ARGS(sched_get_priority_min
, "%d"), args
->policy
);
1249 switch (args
->policy
) {
1250 case LINUX_SCHED_OTHER
:
1251 bsd
.policy
= SCHED_OTHER
;
1253 case LINUX_SCHED_FIFO
:
1254 bsd
.policy
= SCHED_FIFO
;
1256 case LINUX_SCHED_RR
:
1257 bsd
.policy
= SCHED_RR
;
1262 bsd
.sysmsg_result
= 0;
1264 error
= sys_sched_get_priority_min(&bsd
);
1265 args
->sysmsg_result
= bsd
.sysmsg_result
;
1269 #define REBOOT_CAD_ON 0x89abcdef
1270 #define REBOOT_CAD_OFF 0
1271 #define REBOOT_HALT 0xcdef0123
1274 sys_linux_reboot(struct linux_reboot_args
*args
)
1276 struct reboot_args bsd_args
;
1281 kprintf(ARGS(reboot
, "0x%x"), args
->cmd
);
1283 if (args
->cmd
== REBOOT_CAD_ON
|| args
->cmd
== REBOOT_CAD_OFF
)
1285 bsd_args
.opt
= (args
->cmd
== REBOOT_HALT
) ? RB_HALT
: 0;
1286 bsd_args
.sysmsg_result
= 0;
1288 error
= sys_reboot(&bsd_args
);
1289 args
->sysmsg_result
= bsd_args
.sysmsg_result
;
1294 * The FreeBSD native getpid(2), getgid(2) and getuid(2) also modify
1295 * p->p_retval[1] when COMPAT_43 or COMPAT_SUNOS is defined. This
1296 * globbers registers that are assumed to be preserved. The following
1297 * lightweight syscalls fixes this. See also linux_getgid16() and
1298 * linux_getuid16() in linux_uid16.c.
1300 * linux_getpid() - MP SAFE
1301 * linux_getgid() - MP SAFE
1302 * linux_getuid() - MP SAFE
1306 sys_linux_getpid(struct linux_getpid_args
*args
)
1308 struct thread
*td
= curthread
;
1309 struct proc
*p
= td
->td_proc
;
1313 args
->sysmsg_result
= p
->p_pid
;
1318 sys_linux_getgid(struct linux_getgid_args
*args
)
1320 struct thread
*td
= curthread
;
1321 struct proc
*p
= td
->td_proc
;
1325 args
->sysmsg_result
= p
->p_ucred
->cr_rgid
;
1330 sys_linux_getuid(struct linux_getuid_args
*args
)
1332 struct thread
*td
= curthread
;
1333 struct proc
*p
= td
->td_proc
;
1337 args
->sysmsg_result
= p
->p_ucred
->cr_ruid
;
1342 sys_linux_getsid(struct linux_getsid_args
*args
)
1344 struct getsid_args bsd
;
1347 bsd
.sysmsg_result
= 0;
1348 bsd
.pid
= args
->pid
;
1349 error
= sys_getsid(&bsd
);
1350 args
->sysmsg_result
= bsd
.sysmsg_result
;
1355 linux_nosys(struct nosys_args
*args
)