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 1.8 2003/07/29 20:06:35 hmp 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>
41 #include <sys/mount.h>
44 #include <sys/namei.h>
45 #include <sys/blist.h>
46 #include <sys/reboot.h>
47 #include <sys/resourcevar.h>
48 #include <sys/signalvar.h>
50 #include <sys/sysctl.h>
51 #include <sys/sysproto.h>
53 #include <sys/unistd.h>
54 #include <sys/vmmeter.h>
55 #include <sys/vnode.h>
60 #include <vm/vm_kern.h>
61 #include <vm/vm_map.h>
62 #include <vm/vm_extern.h>
63 #include <vm/vm_object.h>
64 #include <vm/vm_zone.h>
65 #include <vm/swap_pager.h>
67 #include <machine/frame.h>
68 #include <machine/limits.h>
69 #include <machine/psl.h>
70 #include <machine/sysarch.h>
72 #include <machine/segments.h>
75 #include <posix4/sched.h>
77 #include <machine/../linux/linux.h>
78 #include <machine/../linux/linux_proto.h>
79 #include <compat/linux/linux_mib.h>
80 #include <compat/linux/linux_util.h>
83 #define BSD_TO_LINUX_SIGNAL(sig) (sig)
85 #define BSD_TO_LINUX_SIGNAL(sig) \
86 (((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,
98 l_long uptime; /* Seconds since boot */
99 l_ulong loads[3]; /* 1, 5, and 15 minute load averages */
100 l_ulong totalram; /* Total usable main memory size */
101 l_ulong freeram; /* Available memory size */
102 l_ulong sharedram; /* Amount of shared memory */
103 l_ulong bufferram; /* Memory used by buffers */
104 l_ulong totalswap; /* Total swap space size */
105 l_ulong freeswap; /* swap space still available */
106 l_ushort procs; /* Number of current processes */
107 char _f[22]; /* Pads structure to 64 bytes */
111 linux_sysinfo(struct linux_sysinfo_args *args)
113 struct l_sysinfo sysinfo;
118 /* Uptime is copied out of print_uptime() in kern_shutdown.c */
121 if (ts.tv_sec >= 86400) {
125 if (i || ts.tv_sec >= 3600) {
129 if (i || ts.tv_sec >= 60) {
133 sysinfo.uptime=ts.tv_sec;
135 /* Use the information from the mib to get our load averages */
136 for (i = 0; i < 3; i++)
137 sysinfo.loads[i] = averunnable.ldavg[i];
139 sysinfo.totalram = physmem * PAGE_SIZE;
140 sysinfo.freeram = sysinfo.totalram - vmstats.v_wire_count * PAGE_SIZE;
142 sysinfo.sharedram = 0;
143 for (object = TAILQ_FIRST(&vm_object_list); object != NULL;
144 object = TAILQ_NEXT(object, object_list))
145 if (object->shadow_count > 1)
146 sysinfo.sharedram += object->resident_page_count;
148 sysinfo.sharedram *= PAGE_SIZE;
149 sysinfo.bufferram = 0;
151 if (swapblist == NULL) {
152 sysinfo.totalswap= 0;
153 sysinfo.freeswap = 0;
155 sysinfo.totalswap = swapblist->bl_blocks * 1024;
156 sysinfo.freeswap = swapblist->bl_root->u.bmu_avail * PAGE_SIZE;
159 sysinfo.procs = 20; /* Hack */
161 return copyout(&sysinfo, (caddr_t)args->info, sizeof(sysinfo));
163 #endif /*!__alpha__*/
167 linux_alarm(struct linux_alarm_args *args)
169 struct thread *td = curthread;
170 struct proc *p = td->td_proc;
171 struct itimerval it, old_it;
179 printf(ARGS(alarm, "%u"), args->secs);
182 if (args->secs > 100000000)
185 it.it_value.tv_sec = (long)args->secs;
186 it.it_value.tv_usec = 0;
187 it.it_interval.tv_sec = 0;
188 it.it_interval.tv_usec = 0;
190 old_it = p->p_realtimer;
192 if (timevalisset(&old_it.it_value))
193 untimeout(realitexpire, (caddr_t)p, p->p_ithandle);
194 if (it.it_value.tv_sec != 0) {
195 p->p_ithandle = timeout(realitexpire, (caddr_t)p,
196 tvtohz(&it.it_value));
197 timevaladd(&it.it_value, &tv);
201 if (timevalcmp(&old_it.it_value, &tv, >)) {
202 timevalsub(&old_it.it_value, &tv);
203 if (old_it.it_value.tv_usec != 0)
204 old_it.it_value.tv_sec++;
205 args->lmsg.u.ms_result = old_it.it_value.tv_sec;
209 #endif /*!__alpha__*/
212 linux_brk(struct linux_brk_args *args)
214 struct thread *td = curthread;
215 struct proc *p = td->td_proc;
217 vm_offset_t new, old;
218 struct obreak_args bsd_args;
224 printf(ARGS(brk, "%p"), (void *)args->dsend);
226 old = (vm_offset_t)vm->vm_daddr + ctob(vm->vm_dsize);
227 new = (vm_offset_t)args->dsend;
228 bsd_args.lmsg.u.ms_result = 0;
229 bsd_args.nsize = (char *) new;
230 bsd_args.lmsg.u.ms_result = 0;
231 if (((caddr_t)new > vm->vm_daddr) && !obreak(&bsd_args))
232 args->lmsg.u.ms_result = (long)new;
234 args->lmsg.u.ms_result = (long)old;
240 linux_uselib(struct linux_uselib_args *args)
242 struct thread *td = curthread;
249 unsigned long file_offset;
251 unsigned long bss_size;
256 KKASSERT(td->td_proc);
259 sg = stackgap_init();
260 CHECKALTEXIST(&sg, args->library);
264 printf(ARGS(uselib, "%s"), args->library);
271 NDINIT(&ni, LOOKUP, FOLLOW|LOCKLEAF, UIO_USERSPACE, args->library, td);
278 * XXX - This looks like a bogus check. A LOCKLEAF namei should not
279 * succeed without returning a vnode.
282 error = ENOEXEC; /* ?? */
285 NDFREE(&ni, NDF_ONLY_PNBUF);
288 * From here on down, we have a locked vnode that must be unlocked.
293 if (vp->v_writecount) {
299 error = VOP_GETATTR(vp, &attr, td);
303 if ((vp->v_mount->mnt_flag & MNT_NOEXEC) ||
304 ((attr.va_mode & 0111) == 0) || (attr.va_type != VREG)) {
310 if (attr.va_size == 0) {
315 /* Can we access it? */
316 error = VOP_ACCESS(vp, VEXEC, p->p_ucred, td);
320 error = VOP_OPEN(vp, FREAD, p->p_ucred, td);
325 * Lock no longer needed
327 VOP_UNLOCK(vp, 0, td);
330 /* Pull in executable header into kernel_map */
331 error = vm_mmap(kernel_map, (vm_offset_t *)&a_out, PAGE_SIZE,
332 VM_PROT_READ, VM_PROT_READ, 0, (caddr_t)vp, 0);
336 /* Is it a Linux binary ? */
337 if (((a_out->a_magic >> 16) & 0xff) != 0x64) {
343 * While we are here, we should REALLY do some more checks
346 /* Set file/virtual offset based on a.out variant. */
347 switch ((int)(a_out->a_magic & 0xffff)) {
348 case 0413: /* ZMAGIC */
351 case 0314: /* QMAGIC */
359 bss_size = round_page(a_out->a_bss);
361 /* Check various fields in header for validity/bounds. */
362 if (a_out->a_text & PAGE_MASK || a_out->a_data & PAGE_MASK) {
367 /* text + data can't exceed file size */
368 if (a_out->a_data + a_out->a_text > attr.va_size) {
374 * text/data/bss must not exceed limits
375 * XXX - this is not complete. it should check current usage PLUS
376 * the resources needed by this library.
378 if (a_out->a_text > maxtsiz ||
379 a_out->a_data + bss_size > p->p_rlimit[RLIMIT_DATA].rlim_cur) {
384 /* prevent more writers */
388 * Check if file_offset page aligned. Currently we cannot handle
389 * misalinged file offsets, and so we read in the entire image
392 if (file_offset & PAGE_MASK) {
394 printf("uselib: Non page aligned binary %lu\n", file_offset);
396 /* Map text+data read/write/execute */
398 /* a_entry is the load address and is page aligned */
399 vmaddr = trunc_page(a_out->a_entry);
401 /* get anon user mapping, read+write+execute */
402 error = vm_map_find(&p->p_vmspace->vm_map, NULL, 0,
403 &vmaddr, a_out->a_text + a_out->a_data, FALSE, VM_PROT_ALL,
408 /* map file into kernel_map */
409 error = vm_mmap(kernel_map, &buffer,
410 round_page(a_out->a_text + a_out->a_data + file_offset),
411 VM_PROT_READ, VM_PROT_READ, 0, (caddr_t)vp,
412 trunc_page(file_offset));
416 /* copy from kernel VM space to user space */
417 error = copyout((caddr_t)(uintptr_t)(buffer + file_offset),
418 (caddr_t)vmaddr, a_out->a_text + a_out->a_data);
420 /* release temporary kernel space */
421 vm_map_remove(kernel_map, buffer, buffer +
422 round_page(a_out->a_text + a_out->a_data + file_offset));
428 printf("uselib: Page aligned binary %lu\n", file_offset);
431 * for QMAGIC, a_entry is 20 bytes beyond the load address
432 * to skip the executable header
434 vmaddr = trunc_page(a_out->a_entry);
437 * Map it all into the process's space as a single
438 * copy-on-write "data" segment.
440 error = vm_mmap(&p->p_vmspace->vm_map, &vmaddr,
441 a_out->a_text + a_out->a_data, VM_PROT_ALL, VM_PROT_ALL,
442 MAP_PRIVATE | MAP_FIXED, (caddr_t)vp, file_offset);
447 printf("mem=%08lx = %08lx %08lx\n", (long)vmaddr, ((long*)vmaddr)[0],
451 /* Calculate BSS start address */
452 vmaddr = trunc_page(a_out->a_entry) + a_out->a_text +
455 /* allocate some 'anon' space */
456 error = vm_map_find(&p->p_vmspace->vm_map, NULL, 0,
457 &vmaddr, bss_size, FALSE, VM_PROT_ALL, VM_PROT_ALL, 0);
463 /* Unlock vnode if needed */
465 VOP_UNLOCK(vp, 0, td);
467 /* Release the kernel mapping. */
469 vm_map_remove(kernel_map, (vm_offset_t)a_out,
470 (vm_offset_t)a_out + PAGE_SIZE);
476 linux_select(struct linux_select_args *args)
478 /* struct thread *td = curthread; */
479 /* struct proc *p = td->td_proc; */
480 struct select_args bsa;
481 struct timeval tv0, tv1, utv, *tvp;
489 printf(ARGS(select, "%d, %p, %p, %p, %p"), args->nfds,
490 (void *)args->readfds, (void *)args->writefds,
491 (void *)args->exceptfds, (void *)args->timeout);
495 bsa.lmsg.u.ms_result = 0;
497 bsa.in = args->readfds;
498 bsa.ou = args->writefds;
499 bsa.ex = args->exceptfds;
500 bsa.tv = (struct timeval *)args->timeout;
503 * Store current time for computation of the amount of
507 if ((error = copyin((caddr_t)args->timeout, &utv,
512 printf(LMSG("incoming timeout (%ld/%ld)"),
513 utv.tv_sec, utv.tv_usec);
516 if (itimerfix(&utv)) {
518 * The timeval was invalid. Convert it to something
519 * valid that will act as it does under Linux.
521 sg = stackgap_init();
522 tvp = stackgap_alloc(&sg, sizeof(utv));
523 utv.tv_sec += utv.tv_usec / 1000000;
524 utv.tv_usec %= 1000000;
525 if (utv.tv_usec < 0) {
527 utv.tv_usec += 1000000;
531 if ((error = copyout(&utv, tvp, sizeof(utv))))
538 error = select(&bsa);
539 args->lmsg.u.ms_result = bsa.lmsg.u.ms_result;
542 printf(LMSG("real select returns %d"), error);
546 * See fs/select.c in the Linux kernel. Without this,
547 * Maelstrom doesn't work.
549 if (error == ERESTART)
555 if (args->lmsg.u.ms_result) {
557 * Compute how much time was left of the timeout,
558 * by subtracting the current time and the time
559 * before we started the call, and subtracting
560 * that result from the user-supplied value.
563 timevalsub(&tv1, &tv0);
564 timevalsub(&utv, &tv1);
571 printf(LMSG("outgoing timeout (%ld/%ld)"),
572 utv.tv_sec, utv.tv_usec);
574 if ((error = copyout(&utv, (caddr_t)args->timeout,
582 printf(LMSG("select_out -> %d"), error);
588 linux_mremap(struct linux_mremap_args *args)
590 /* struct thread *td = curthread; */
591 struct munmap_args bsd_args;
593 /* struct proc *p = td->td_proc; */
599 printf(ARGS(mremap, "%p, %08lx, %08lx, %08lx"),
601 (unsigned long)args->old_len,
602 (unsigned long)args->new_len,
603 (unsigned long)args->flags);
605 args->new_len = round_page(args->new_len);
606 args->old_len = round_page(args->old_len);
608 if (args->new_len > args->old_len) {
609 args->lmsg.u.ms_result = 0;
613 if (args->new_len < args->old_len) {
614 bsd_args.lmsg.u.ms_result = 0;
615 bsd_args.addr = (caddr_t)(args->addr + args->new_len);
616 bsd_args.len = args->old_len - args->new_len;
617 error = munmap(&bsd_args);
620 args->lmsg.u.ms_resultp = error ? NULL : (void *)args->addr;
624 #define LINUX_MS_ASYNC 0x0001
625 #define LINUX_MS_INVALIDATE 0x0002
626 #define LINUX_MS_SYNC 0x0004
629 linux_msync(struct linux_msync_args *args)
631 struct msync_args bsd_args;
634 bsd_args.addr = (caddr_t)args->addr;
635 bsd_args.len = args->len;
636 bsd_args.flags = args->fl & ~LINUX_MS_SYNC;
637 bsd_args.lmsg.u.ms_result = 0;
639 error = msync(&bsd_args);
640 args->lmsg.u.ms_result = bsd_args.lmsg.u.ms_result;
646 linux_time(struct linux_time_args *args)
648 /* struct thread *td = curthread; */
649 /* struct proc *p = td->td_proc; */
658 printf(ARGS(time, "*"));
663 if (args->tm && (error = copyout(&tm, (caddr_t)args->tm, sizeof(tm))))
665 args->lmsg.u.ms_lresult = tm;
668 #endif /*!__alpha__*/
670 struct l_times_argv {
678 #define CLK_TCK 1024 /* Linux uses 1024 on alpha */
680 #define CLK_TCK 100 /* Linux uses 100 */
683 #define CONVTCK(r) (r.tv_sec * CLK_TCK + r.tv_usec / (1000000 / CLK_TCK))
686 linux_times(struct linux_times_args *args)
688 struct thread *td = curthread;
689 struct proc *p = td->td_proc;
691 struct l_times_argv tms;
698 printf(ARGS(times, "*"));
701 calcru(p, &ru.ru_utime, &ru.ru_stime, NULL);
703 tms.tms_utime = CONVTCK(ru.ru_utime);
704 tms.tms_stime = CONVTCK(ru.ru_stime);
706 tms.tms_cutime = CONVTCK(p->p_stats->p_cru.ru_utime);
707 tms.tms_cstime = CONVTCK(p->p_stats->p_cru.ru_stime);
709 if ((error = copyout(&tms, (caddr_t)args->buf, sizeof(tms))))
713 args->lmsg.u.ms_result = (int)CONVTCK(tv);
718 linux_newuname(struct linux_newuname_args *args)
720 struct thread *td = curthread;
721 struct l_new_utsname utsname;
722 char *osrelease, *osname;
725 if (ldebug(newuname))
726 printf(ARGS(newuname, "*"));
729 osname = linux_get_osname(td);
730 osrelease = linux_get_osrelease(td);
732 bzero(&utsname, sizeof(utsname));
733 strncpy(utsname.sysname, osname, LINUX_MAX_UTSNAME-1);
734 strncpy(utsname.nodename, hostname, LINUX_MAX_UTSNAME-1);
735 strncpy(utsname.release, osrelease, LINUX_MAX_UTSNAME-1);
736 strncpy(utsname.version, version, LINUX_MAX_UTSNAME-1);
737 strncpy(utsname.machine, machine, LINUX_MAX_UTSNAME-1);
738 strncpy(utsname.domainname, domainname, LINUX_MAX_UTSNAME-1);
740 return (copyout(&utsname, (caddr_t)args->buf, sizeof(utsname)));
743 #if defined(__i386__)
750 linux_utime(struct linux_utime_args *args)
752 struct utimes_args /* {
754 struct timeval *tptr;
756 struct timeval tv[2], *tvp;
757 struct l_utimbuf lut;
761 sg = stackgap_init();
762 CHECKALTEXIST(&sg, args->fname);
766 printf(ARGS(utime, "%s, *"), args->fname);
770 if ((error = copyin((caddr_t)args->times, &lut, sizeof lut)))
772 tv[0].tv_sec = lut.l_actime;
774 tv[1].tv_sec = lut.l_modtime;
776 /* so that utimes can copyin */
777 tvp = (struct timeval *)stackgap_alloc(&sg, sizeof(tv));
779 return (ENAMETOOLONG);
780 if ((error = copyout(tv, tvp, sizeof(tv))))
782 bsdutimes.tptr = tvp;
784 bsdutimes.tptr = NULL;
786 bsdutimes.path = args->fname;
787 bsdutimes.lmsg.u.ms_result = 0;
788 error = utimes(&bsdutimes);
789 args->lmsg.u.ms_result = bsdutimes.lmsg.u.ms_result;
792 #endif /* __i386__ */
794 #define __WCLONE 0x80000000
798 linux_waitpid(struct linux_waitpid_args *args)
800 struct wait_args bsd_args;
805 printf(ARGS(waitpid, "%d, %p, %d"),
806 args->pid, (void *)args->status, args->options);
809 bsd_args.lmsg.u.ms_result = 0;
810 bsd_args.pid = args->pid;
811 bsd_args.status = args->status;
812 bsd_args.options = (args->options & (WNOHANG | WUNTRACED));
813 /* WLINUXCLONE should be equal to __WCLONE, but we make sure */
814 if (args->options & __WCLONE)
815 bsd_args.options |= WLINUXCLONE;
816 bsd_args.rusage = NULL;
818 if ((error = wait4(&bsd_args)) != 0)
820 args->lmsg.u.ms_result = bsd_args.lmsg.u.ms_result;
823 if ((error = copyin((caddr_t)args->status, &tmpstat,
827 if (WIFSIGNALED(tmpstat))
828 tmpstat = (tmpstat & 0xffffff80) |
829 BSD_TO_LINUX_SIGNAL(WTERMSIG(tmpstat));
830 else if (WIFSTOPPED(tmpstat))
831 tmpstat = (tmpstat & 0xffff00ff) |
832 (BSD_TO_LINUX_SIGNAL(WSTOPSIG(tmpstat)) << 8);
833 return copyout(&tmpstat, (caddr_t)args->status, sizeof(int));
838 #endif /*!__alpha__*/
841 linux_wait4(struct linux_wait4_args *args)
843 struct thread *td = curthread;
844 struct proc *p = td->td_proc;
845 struct wait_args bsd_args;
852 printf(ARGS(wait4, "%d, %p, %d, %p"),
853 args->pid, (void *)args->status, args->options,
854 (void *)args->rusage);
857 bsd_args.lmsg.u.ms_result = 0;
858 bsd_args.pid = args->pid;
859 bsd_args.status = args->status;
860 bsd_args.options = (args->options & (WNOHANG | WUNTRACED));
861 /* WLINUXCLONE should be equal to __WCLONE, but we make sure */
862 if (args->options & __WCLONE)
863 bsd_args.options |= WLINUXCLONE;
864 bsd_args.rusage = (struct rusage *)args->rusage;
866 if ((error = wait4(&bsd_args)) != 0)
868 args->lmsg.u.ms_result = bsd_args.lmsg.u.ms_result;
870 SIGDELSET(p->p_siglist, SIGCHLD);
873 if ((error = copyin((caddr_t)args->status, &tmpstat,
877 if (WIFSIGNALED(tmpstat))
878 tmpstat = (tmpstat & 0xffffff80) |
879 BSD_TO_LINUX_SIGNAL(WTERMSIG(tmpstat));
880 else if (WIFSTOPPED(tmpstat))
881 tmpstat = (tmpstat & 0xffff00ff) |
882 (BSD_TO_LINUX_SIGNAL(WSTOPSIG(tmpstat)) << 8);
883 return copyout(&tmpstat, (caddr_t)args->status, sizeof(int));
890 linux_mknod(struct linux_mknod_args *args)
894 struct mknod_args bsd_mknod;
895 struct mkfifo_args bsd_mkfifo;
897 sg = stackgap_init();
899 CHECKALTCREAT(&sg, args->path);
903 printf(ARGS(mknod, "%s, %d, %d"),
904 args->path, args->mode, args->dev);
907 if (args->mode & S_IFIFO) {
908 bsd_mkfifo.path = args->path;
909 bsd_mkfifo.mode = args->mode;
910 bsd_mkfifo.lmsg.u.ms_result = 0;
911 error = mkfifo(&bsd_mkfifo);
912 args->lmsg.u.ms_result = bsd_mkfifo.lmsg.u.ms_result;
914 bsd_mknod.path = args->path;
915 bsd_mknod.mode = args->mode;
916 bsd_mknod.dev = args->dev;
917 bsd_mknod.lmsg.u.ms_result = 0;
918 error = mknod(&bsd_mknod);
919 args->lmsg.u.ms_result = bsd_mknod.lmsg.u.ms_result;
925 * UGH! This is just about the dumbest idea I've ever heard!!
928 linux_personality(struct linux_personality_args *args)
930 /* struct thread *td = curthread; */
931 /* struct proc *p = td->td_proc; */
935 if (ldebug(personality))
936 printf(ARGS(personality, "%d"), args->per);
943 /* Yes Jim, it's still a Linux... */
944 args->lmsg.u.ms_result = 0;
949 * Wrappers for get/setitimer for debugging..
952 linux_setitimer(struct linux_setitimer_args *args)
954 struct setitimer_args bsa;
955 struct itimerval foo;
959 if (ldebug(setitimer))
960 printf(ARGS(setitimer, "%p, %p"),
961 (void *)args->itv, (void *)args->oitv);
963 bsa.which = args->which;
964 bsa.itv = (struct itimerval *)args->itv;
965 bsa.oitv = (struct itimerval *)args->oitv;
966 bsa.lmsg.u.ms_result = 0;
968 if ((error = copyin((caddr_t)args->itv, &foo, sizeof(foo))))
971 if (ldebug(setitimer)) {
972 printf("setitimer: value: sec: %ld, usec: %ld\n",
973 foo.it_value.tv_sec, foo.it_value.tv_usec);
974 printf("setitimer: interval: sec: %ld, usec: %ld\n",
975 foo.it_interval.tv_sec, foo.it_interval.tv_usec);
979 error = setitimer(&bsa);
980 args->lmsg.u.ms_result = bsa.lmsg.u.ms_result;
985 linux_getitimer(struct linux_getitimer_args *args)
987 struct getitimer_args bsa;
990 if (ldebug(getitimer))
991 printf(ARGS(getitimer, "%p"), (void *)args->itv);
993 bsa.which = args->which;
994 bsa.itv = (struct itimerval *)args->itv;
995 bsa.lmsg.u.ms_result = 0;
996 error = getitimer(&bsa);
997 args->lmsg.u.ms_result = bsa.lmsg.u.ms_result;
1003 linux_nice(struct linux_nice_args *args)
1005 struct setpriority_args bsd_args;
1008 bsd_args.which = PRIO_PROCESS;
1009 bsd_args.who = 0; /* current process */
1010 bsd_args.prio = args->inc;
1011 bsd_args.lmsg.u.ms_result = 0;
1012 error = setpriority(&bsd_args);
1013 args->lmsg.u.ms_result = bsd_args.lmsg.u.ms_result;
1016 #endif /*!__alpha__*/
1019 linux_setgroups(struct linux_setgroups_args *args)
1021 struct thread *td = curthread;
1022 struct proc *p = td->td_proc;
1023 struct ucred *newcred, *oldcred;
1024 l_gid_t linux_gidset[NGROUPS];
1030 ngrp = args->gidsetsize;
1031 oldcred = p->p_ucred;
1034 * cr_groups[0] holds egid. Setting the whole set from
1035 * the supplied set will cause egid to be changed too.
1036 * Keep cr_groups[0] unchanged to prevent that.
1039 if ((error = suser_cred(oldcred, PRISON_ROOT)) != 0)
1042 if (ngrp >= NGROUPS)
1045 newcred = crdup(oldcred);
1047 error = copyin((caddr_t)args->grouplist, linux_gidset,
1048 ngrp * sizeof(l_gid_t));
1052 newcred->cr_ngroups = ngrp + 1;
1054 bsd_gidset = newcred->cr_groups;
1057 bsd_gidset[ngrp + 1] = linux_gidset[ngrp];
1061 newcred->cr_ngroups = 1;
1065 p->p_ucred = newcred;
1071 linux_getgroups(struct linux_getgroups_args *args)
1073 struct thread *td = curthread;
1074 struct proc *p = td->td_proc;
1076 l_gid_t linux_gidset[NGROUPS];
1078 int bsd_gidsetsz, ngrp, error;
1083 bsd_gidset = cred->cr_groups;
1084 bsd_gidsetsz = cred->cr_ngroups - 1;
1087 * cr_groups[0] holds egid. Returning the whole set
1088 * here will cause a duplicate. Exclude cr_groups[0]
1092 if ((ngrp = args->gidsetsize) == 0) {
1093 args->lmsg.u.ms_result = bsd_gidsetsz;
1097 if (ngrp < bsd_gidsetsz)
1101 while (ngrp < bsd_gidsetsz) {
1102 linux_gidset[ngrp] = bsd_gidset[ngrp + 1];
1106 if ((error = copyout(linux_gidset, (caddr_t)args->grouplist,
1107 ngrp * sizeof(l_gid_t))))
1110 args->lmsg.u.ms_result = ngrp;
1116 linux_setrlimit(struct linux_setrlimit_args *args)
1118 struct __setrlimit_args bsd;
1119 struct l_rlimit rlim;
1121 caddr_t sg = stackgap_init();
1124 if (ldebug(setrlimit))
1125 printf(ARGS(setrlimit, "%d, %p"),
1126 args->resource, (void *)args->rlim);
1129 if (args->resource >= LINUX_RLIM_NLIMITS)
1132 bsd.which = linux_to_bsd_resource[args->resource];
1133 if (bsd.which == -1)
1136 error = copyin((caddr_t)args->rlim, &rlim, sizeof(rlim));
1140 bsd.rlp = stackgap_alloc(&sg, sizeof(struct rlimit));
1141 bsd.rlp->rlim_cur = (rlim_t)rlim.rlim_cur;
1142 bsd.rlp->rlim_max = (rlim_t)rlim.rlim_max;
1143 bsd.lmsg.u.ms_result = 0;
1144 error = setrlimit(&bsd);
1145 args->lmsg.u.ms_result = bsd.lmsg.u.ms_result;
1150 linux_old_getrlimit(struct linux_old_getrlimit_args *args)
1152 struct __getrlimit_args bsd;
1153 struct l_rlimit rlim;
1155 caddr_t sg = stackgap_init();
1158 if (ldebug(old_getrlimit))
1159 printf(ARGS(old_getrlimit, "%d, %p"),
1160 args->resource, (void *)args->rlim);
1163 if (args->resource >= LINUX_RLIM_NLIMITS)
1166 bsd.which = linux_to_bsd_resource[args->resource];
1167 if (bsd.which == -1)
1170 bsd.rlp = stackgap_alloc(&sg, sizeof(struct rlimit));
1171 bsd.lmsg.u.ms_result = 0;
1172 error = getrlimit(&bsd);
1175 args->lmsg.u.ms_result = bsd.lmsg.u.ms_result;
1176 rlim.rlim_cur = (unsigned long)bsd.rlp->rlim_cur;
1177 if (rlim.rlim_cur == ULONG_MAX)
1178 rlim.rlim_cur = LONG_MAX;
1179 rlim.rlim_max = (unsigned long)bsd.rlp->rlim_max;
1180 if (rlim.rlim_max == ULONG_MAX)
1181 rlim.rlim_max = LONG_MAX;
1182 return (copyout(&rlim, (caddr_t)args->rlim, sizeof(rlim)));
1186 linux_getrlimit(struct linux_getrlimit_args *args)
1188 struct __getrlimit_args bsd;
1189 struct l_rlimit rlim;
1191 caddr_t sg = stackgap_init();
1194 if (ldebug(getrlimit))
1195 printf(ARGS(getrlimit, "%d, %p"),
1196 args->resource, (void *)args->rlim);
1199 if (args->resource >= LINUX_RLIM_NLIMITS)
1202 bsd.which = linux_to_bsd_resource[args->resource];
1203 if (bsd.which == -1)
1206 bsd.rlp = stackgap_alloc(&sg, sizeof(struct rlimit));
1207 bsd.lmsg.u.ms_result = 0;
1208 error = getrlimit(&bsd);
1211 args->lmsg.u.ms_result = bsd.lmsg.u.ms_result;
1213 rlim.rlim_cur = (l_ulong)bsd.rlp->rlim_cur;
1214 rlim.rlim_max = (l_ulong)bsd.rlp->rlim_max;
1215 return (copyout(&rlim, (caddr_t)args->rlim, sizeof(rlim)));
1217 #endif /*!__alpha__*/
1220 linux_sched_setscheduler(struct linux_sched_setscheduler_args *args)
1222 struct sched_setscheduler_args bsd;
1226 if (ldebug(sched_setscheduler))
1227 printf(ARGS(sched_setscheduler, "%d, %d, %p"),
1228 args->pid, args->policy, (const void *)args->param);
1231 switch (args->policy) {
1232 case LINUX_SCHED_OTHER:
1233 bsd.policy = SCHED_OTHER;
1235 case LINUX_SCHED_FIFO:
1236 bsd.policy = SCHED_FIFO;
1238 case LINUX_SCHED_RR:
1239 bsd.policy = SCHED_RR;
1245 bsd.pid = args->pid;
1246 bsd.param = (struct sched_param *)args->param;
1247 bsd.lmsg.u.ms_result = 0;
1249 error = sched_setscheduler(&bsd);
1250 args->lmsg.u.ms_result = bsd.lmsg.u.ms_result;
1255 linux_sched_getscheduler(struct linux_sched_getscheduler_args *args)
1257 /* struct thread *td = curthread; */
1258 /* struct proc *p = td->td_proc; */
1259 struct sched_getscheduler_args bsd;
1265 if (ldebug(sched_getscheduler))
1266 printf(ARGS(sched_getscheduler, "%d"), args->pid);
1269 bsd.lmsg.u.ms_result = 0;
1270 bsd.pid = args->pid;
1271 error = sched_getscheduler(&bsd);
1272 args->lmsg.u.ms_result = bsd.lmsg.u.ms_result;
1274 switch (args->lmsg.u.ms_result) {
1276 args->lmsg.u.ms_result = LINUX_SCHED_OTHER;
1279 args->lmsg.u.ms_result = LINUX_SCHED_FIFO;
1282 args->lmsg.u.ms_result = LINUX_SCHED_RR;
1289 linux_sched_get_priority_max(struct linux_sched_get_priority_max_args *args)
1291 struct sched_get_priority_max_args bsd;
1295 if (ldebug(sched_get_priority_max))
1296 printf(ARGS(sched_get_priority_max, "%d"), args->policy);
1299 switch (args->policy) {
1300 case LINUX_SCHED_OTHER:
1301 bsd.policy = SCHED_OTHER;
1303 case LINUX_SCHED_FIFO:
1304 bsd.policy = SCHED_FIFO;
1306 case LINUX_SCHED_RR:
1307 bsd.policy = SCHED_RR;
1312 bsd.lmsg.u.ms_result = 0;
1314 error = sched_get_priority_max(&bsd);
1315 args->lmsg.u.ms_result = bsd.lmsg.u.ms_result;
1320 linux_sched_get_priority_min(struct linux_sched_get_priority_min_args *args)
1322 struct sched_get_priority_min_args bsd;
1326 if (ldebug(sched_get_priority_min))
1327 printf(ARGS(sched_get_priority_min, "%d"), args->policy);
1330 switch (args->policy) {
1331 case LINUX_SCHED_OTHER:
1332 bsd.policy = SCHED_OTHER;
1334 case LINUX_SCHED_FIFO:
1335 bsd.policy = SCHED_FIFO;
1337 case LINUX_SCHED_RR:
1338 bsd.policy = SCHED_RR;
1343 bsd.lmsg.u.ms_result = 0;
1345 error = sched_get_priority_min(&bsd);
1346 args->lmsg.u.ms_result = bsd.lmsg.u.ms_result;
1350 #define REBOOT_CAD_ON 0x89abcdef
1351 #define REBOOT_CAD_OFF 0
1352 #define REBOOT_HALT 0xcdef0123
1355 linux_reboot(struct linux_reboot_args *args)
1357 struct reboot_args bsd_args;
1362 printf(ARGS(reboot, "0x%x"), args->cmd);
1364 if (args->cmd == REBOOT_CAD_ON || args->cmd == REBOOT_CAD_OFF)
1366 bsd_args.opt = (args->cmd == REBOOT_HALT) ? RB_HALT : 0;
1367 bsd_args.lmsg.u.ms_result = 0;
1369 error = reboot(&bsd_args);
1370 args->lmsg.u.ms_result = bsd_args.lmsg.u.ms_result;
1377 * The FreeBSD native getpid(2), getgid(2) and getuid(2) also modify
1378 * p->p_retval[1] when COMPAT_43 or COMPAT_SUNOS is defined. This
1379 * globbers registers that are assumed to be preserved. The following
1380 * lightweight syscalls fixes this. See also linux_getgid16() and
1381 * linux_getuid16() in linux_uid16.c.
1383 * linux_getpid() - MP SAFE
1384 * linux_getgid() - MP SAFE
1385 * linux_getuid() - MP SAFE
1389 linux_getpid(struct linux_getpid_args *args)
1391 struct thread *td = curthread;
1392 struct proc *p = td->td_proc;
1396 args->lmsg.u.ms_result = p->p_pid;
1401 linux_getgid(struct linux_getgid_args *args)
1403 struct thread *td = curthread;
1404 struct proc *p = td->td_proc;
1408 args->lmsg.u.ms_result = p->p_ucred->cr_rgid;
1413 linux_getuid(struct linux_getuid_args *args)
1415 struct thread *td = curthread;
1416 struct proc *p = td->td_proc;
1420 args->lmsg.u.ms_result = p->p_ucred->cr_ruid;
1424 #endif /*!__alpha__*/
1427 linux_getsid(struct linux_getsid_args *args)
1429 struct getsid_args bsd;
1432 bsd.lmsg.u.ms_result = 0;
1433 bsd.pid = args->pid;
1434 error = getsid(&bsd);
1435 args->lmsg.u.ms_result = bsd.lmsg.u.ms_result;