9e27b29fba
integers. Don't forget to cast to (void *) as well.
992 lines
23 KiB
C
992 lines
23 KiB
C
/*-
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* Copyright (c) 1994-1995 Søren Schmidt
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer
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* in this position and unchanged.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software withough specific prior written permission
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $Id: linux_misc.c,v 1.41 1998/08/05 16:44:30 bde Exp $
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*/
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/sysproto.h>
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#include <sys/kernel.h>
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#include <sys/mman.h>
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#include <sys/proc.h>
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#include <sys/fcntl.h>
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#include <sys/imgact_aout.h>
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#include <sys/mount.h>
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#include <sys/namei.h>
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#include <sys/resourcevar.h>
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#include <sys/stat.h>
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#include <sys/sysctl.h>
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#include <sys/vnode.h>
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#include <sys/wait.h>
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#include <sys/time.h>
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#include <vm/vm.h>
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#include <vm/pmap.h>
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#include <vm/vm_kern.h>
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#include <vm/vm_prot.h>
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#include <vm/vm_map.h>
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#include <vm/vm_extern.h>
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#include <machine/frame.h>
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#include <machine/psl.h>
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#include <i386/linux/linux.h>
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#include <i386/linux/linux_proto.h>
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#include <i386/linux/linux_util.h>
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int
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linux_alarm(struct proc *p, struct linux_alarm_args *args)
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{
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struct itimerval it, old_it;
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struct timeval tv;
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int s;
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#ifdef DEBUG
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printf("Linux-emul(%ld): alarm(%u)\n", (long)p->p_pid, args->secs);
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#endif
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if (args->secs > 100000000)
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return EINVAL;
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it.it_value.tv_sec = (long)args->secs;
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it.it_value.tv_usec = 0;
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it.it_interval.tv_sec = 0;
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it.it_interval.tv_usec = 0;
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s = splsoftclock();
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old_it = p->p_realtimer;
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getmicrouptime(&tv);
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if (timevalisset(&old_it.it_value))
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untimeout(realitexpire, (caddr_t)p, p->p_ithandle);
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if (it.it_value.tv_sec != 0) {
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p->p_ithandle = timeout(realitexpire, (caddr_t)p, tvtohz(&it.it_value));
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timevaladd(&it.it_value, &tv);
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}
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p->p_realtimer = it;
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splx(s);
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if (timevalcmp(&old_it.it_value, &tv, >)) {
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timevalsub(&old_it.it_value, &tv);
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if (old_it.it_value.tv_usec != 0)
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old_it.it_value.tv_sec++;
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p->p_retval[0] = old_it.it_value.tv_sec;
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}
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return 0;
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}
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int
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linux_brk(struct proc *p, struct linux_brk_args *args)
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{
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#if 0
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struct vmspace *vm = p->p_vmspace;
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vm_offset_t new, old;
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int error;
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if ((vm_offset_t)args->dsend < (vm_offset_t)vm->vm_daddr)
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return EINVAL;
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if (((caddr_t)args->dsend - (caddr_t)vm->vm_daddr)
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> p->p_rlimit[RLIMIT_DATA].rlim_cur)
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return ENOMEM;
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old = round_page((vm_offset_t)vm->vm_daddr) + ctob(vm->vm_dsize);
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new = round_page((vm_offset_t)args->dsend);
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p->p_retval[0] = old;
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if ((new-old) > 0) {
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if (swap_pager_full)
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return ENOMEM;
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error = vm_map_find(&vm->vm_map, NULL, 0, &old, (new-old), FALSE,
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VM_PROT_ALL, VM_PROT_ALL, 0);
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if (error)
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return error;
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vm->vm_dsize += btoc((new-old));
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p->p_retval[0] = (int)(vm->vm_daddr + ctob(vm->vm_dsize));
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}
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return 0;
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#else
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struct vmspace *vm = p->p_vmspace;
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vm_offset_t new, old;
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struct obreak_args /* {
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char * nsize;
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} */ tmp;
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#ifdef DEBUG
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printf("Linux-emul(%ld): brk(%p)\n", (long)p->p_pid, (void *)args->dsend);
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#endif
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old = (vm_offset_t)vm->vm_daddr + ctob(vm->vm_dsize);
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new = (vm_offset_t)args->dsend;
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tmp.nsize = (char *) new;
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if (((caddr_t)new > vm->vm_daddr) && !obreak(p, &tmp))
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p->p_retval[0] = (int)new;
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else
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p->p_retval[0] = (int)old;
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return 0;
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#endif
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}
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int
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linux_uselib(struct proc *p, struct linux_uselib_args *args)
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{
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struct nameidata ni;
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struct vnode *vp;
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struct exec *a_out;
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struct vattr attr;
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vm_offset_t vmaddr;
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unsigned long file_offset;
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vm_offset_t buffer;
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unsigned long bss_size;
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int error;
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caddr_t sg;
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int locked;
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sg = stackgap_init();
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CHECKALTEXIST(p, &sg, args->library);
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#ifdef DEBUG
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printf("Linux-emul(%d): uselib(%s)\n", p->p_pid, args->library);
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#endif
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a_out = NULL;
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locked = 0;
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vp = NULL;
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NDINIT(&ni, LOOKUP, FOLLOW | LOCKLEAF, UIO_SYSSPACE, args->library, p);
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if (error = namei(&ni))
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goto cleanup;
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vp = ni.ni_vp;
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if (vp == NULL) {
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error = ENOEXEC; /* ?? */
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goto cleanup;
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}
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/*
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* From here on down, we have a locked vnode that must be unlocked.
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*/
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locked++;
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/*
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* Writable?
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*/
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if (vp->v_writecount) {
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error = ETXTBSY;
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goto cleanup;
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}
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/*
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* Executable?
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*/
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if (error = VOP_GETATTR(vp, &attr, p->p_ucred, p))
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goto cleanup;
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if ((vp->v_mount->mnt_flag & MNT_NOEXEC) ||
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((attr.va_mode & 0111) == 0) ||
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(attr.va_type != VREG)) {
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error = ENOEXEC;
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goto cleanup;
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}
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/*
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* Sensible size?
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*/
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if (attr.va_size == 0) {
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error = ENOEXEC;
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goto cleanup;
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}
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/*
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* Can we access it?
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*/
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if (error = VOP_ACCESS(vp, VEXEC, p->p_ucred, p))
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goto cleanup;
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if (error = VOP_OPEN(vp, FREAD, p->p_ucred, p))
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goto cleanup;
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/*
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* Lock no longer needed
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*/
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VOP_UNLOCK(vp, 0, p);
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locked = 0;
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/*
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* Pull in executable header into kernel_map
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*/
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error = vm_mmap(kernel_map, (vm_offset_t *)&a_out, PAGE_SIZE,
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VM_PROT_READ, VM_PROT_READ, 0, (caddr_t)vp, 0);
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if (error)
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goto cleanup;
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/*
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* Is it a Linux binary ?
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*/
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if (((a_out->a_magic >> 16) & 0xff) != 0x64) {
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error = ENOEXEC;
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goto cleanup;
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}
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/* While we are here, we should REALLY do some more checks */
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/*
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* Set file/virtual offset based on a.out variant.
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*/
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switch ((int)(a_out->a_magic & 0xffff)) {
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case 0413: /* ZMAGIC */
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file_offset = 1024;
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break;
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case 0314: /* QMAGIC */
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file_offset = 0;
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break;
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default:
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error = ENOEXEC;
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goto cleanup;
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}
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bss_size = round_page(a_out->a_bss);
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/*
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* Check various fields in header for validity/bounds.
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*/
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if (a_out->a_text & PAGE_MASK || a_out->a_data & PAGE_MASK) {
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error = ENOEXEC;
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goto cleanup;
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}
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/* text + data can't exceed file size */
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if (a_out->a_data + a_out->a_text > attr.va_size) {
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error = EFAULT;
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goto cleanup;
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}
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/*
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* text/data/bss must not exceed limits
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* XXX: this is not complete. it should check current usage PLUS
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* the resources needed by this library.
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*/
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if (a_out->a_text > MAXTSIZ ||
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a_out->a_data + bss_size > p->p_rlimit[RLIMIT_DATA].rlim_cur) {
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error = ENOMEM;
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goto cleanup;
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}
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/*
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* prevent more writers
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*/
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vp->v_flag |= VTEXT;
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/*
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* Check if file_offset page aligned,.
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* Currently we cannot handle misalinged file offsets,
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* and so we read in the entire image (what a waste).
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*/
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if (file_offset & PAGE_MASK) {
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#ifdef DEBUG
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printf("uselib: Non page aligned binary %lu\n", file_offset);
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#endif
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/*
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* Map text+data read/write/execute
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*/
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/* a_entry is the load address and is page aligned */
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vmaddr = trunc_page(a_out->a_entry);
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/* get anon user mapping, read+write+execute */
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error = vm_map_find(&p->p_vmspace->vm_map, NULL, 0, &vmaddr,
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a_out->a_text + a_out->a_data, FALSE,
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VM_PROT_ALL, VM_PROT_ALL, 0);
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if (error)
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goto cleanup;
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/* map file into kernel_map */
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error = vm_mmap(kernel_map, &buffer,
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round_page(a_out->a_text + a_out->a_data + file_offset),
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VM_PROT_READ, VM_PROT_READ, 0,
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(caddr_t)vp, trunc_page(file_offset));
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if (error)
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goto cleanup;
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/* copy from kernel VM space to user space */
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error = copyout((caddr_t)(void *)(uintptr_t)(buffer + file_offset),
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(caddr_t)vmaddr, a_out->a_text + a_out->a_data);
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/* release temporary kernel space */
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vm_map_remove(kernel_map, buffer,
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buffer + round_page(a_out->a_text + a_out->a_data + file_offset));
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if (error)
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goto cleanup;
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}
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else {
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#ifdef DEBUG
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printf("uselib: Page aligned binary %lu\n", file_offset);
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#endif
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/*
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* for QMAGIC, a_entry is 20 bytes beyond the load address
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* to skip the executable header
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*/
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vmaddr = trunc_page(a_out->a_entry);
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/*
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* Map it all into the process's space as a single copy-on-write
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* "data" segment.
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*/
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error = vm_mmap(&p->p_vmspace->vm_map, &vmaddr,
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a_out->a_text + a_out->a_data,
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VM_PROT_ALL, VM_PROT_ALL, MAP_PRIVATE | MAP_FIXED,
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(caddr_t)vp, file_offset);
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if (error)
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goto cleanup;
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}
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#ifdef DEBUG
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printf("mem=%08x = %08x %08x\n", vmaddr, ((int*)vmaddr)[0], ((int*)vmaddr)[1]);
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#endif
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if (bss_size != 0) {
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/*
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* Calculate BSS start address
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*/
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vmaddr = trunc_page(a_out->a_entry) + a_out->a_text + a_out->a_data;
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/*
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* allocate some 'anon' space
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*/
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error = vm_map_find(&p->p_vmspace->vm_map, NULL, 0, &vmaddr,
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bss_size, FALSE,
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VM_PROT_ALL, VM_PROT_ALL, 0);
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if (error)
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goto cleanup;
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}
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cleanup:
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/*
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* Unlock vnode if needed
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*/
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if (locked)
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VOP_UNLOCK(vp, 0, p);
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/*
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* Release the kernel mapping.
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*/
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if (a_out)
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vm_map_remove(kernel_map, (vm_offset_t)a_out, (vm_offset_t)a_out + PAGE_SIZE);
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return error;
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}
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/* XXX move */
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struct linux_select_argv {
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int nfds;
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fd_set *readfds;
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fd_set *writefds;
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fd_set *exceptfds;
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struct timeval *timeout;
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};
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int
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linux_select(struct proc *p, struct linux_select_args *args)
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{
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struct linux_select_argv linux_args;
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struct linux_newselect_args newsel;
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int error;
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#ifdef SELECT_DEBUG
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printf("Linux-emul(%d): select(%x)\n",
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p->p_pid, args->ptr);
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#endif
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if ((error = copyin((caddr_t)args->ptr, (caddr_t)&linux_args,
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sizeof(linux_args))))
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return error;
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newsel.nfds = linux_args.nfds;
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newsel.readfds = linux_args.readfds;
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newsel.writefds = linux_args.writefds;
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newsel.exceptfds = linux_args.exceptfds;
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newsel.timeout = linux_args.timeout;
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return linux_newselect(p, &newsel);
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}
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int
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linux_newselect(struct proc *p, struct linux_newselect_args *args)
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{
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struct select_args bsa;
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struct timeval tv0, tv1, utv, *tvp;
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caddr_t sg;
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int error;
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#ifdef DEBUG
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printf("Linux-emul(%ld): newselect(%d, %p, %p, %p, %p)\n",
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(long)p->p_pid, args->nfds, (void *)args->readfds,
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(void *)args->writefds, (void *)args->exceptfds,
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(void *)args->timeout);
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#endif
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error = 0;
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bsa.nd = args->nfds;
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bsa.in = args->readfds;
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bsa.ou = args->writefds;
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bsa.ex = args->exceptfds;
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bsa.tv = args->timeout;
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/*
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* Store current time for computation of the amount of
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* time left.
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*/
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if (args->timeout) {
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if ((error = copyin(args->timeout, &utv, sizeof(utv))))
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goto select_out;
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#ifdef DEBUG
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printf("Linux-emul(%ld): incoming timeout (%ld/%ld)\n",
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(long)p->p_pid, utv.tv_sec, utv.tv_usec);
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#endif
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if (itimerfix(&utv)) {
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/*
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* The timeval was invalid. Convert it to something
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* valid that will act as it does under Linux.
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*/
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sg = stackgap_init();
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tvp = stackgap_alloc(&sg, sizeof(utv));
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utv.tv_sec += utv.tv_usec / 1000000;
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utv.tv_usec %= 1000000;
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if (utv.tv_usec < 0) {
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utv.tv_sec -= 1;
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utv.tv_usec += 1000000;
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}
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if (utv.tv_sec < 0)
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timevalclear(&utv);
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if ((error = copyout(&utv, tvp, sizeof(utv))))
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goto select_out;
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bsa.tv = tvp;
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}
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microtime(&tv0);
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}
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error = select(p, &bsa);
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#ifdef DEBUG
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printf("Linux-emul(%d): real select returns %d\n",
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p->p_pid, error);
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#endif
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if (error) {
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/*
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* See fs/select.c in the Linux kernel. Without this,
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* Maelstrom doesn't work.
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*/
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if (error == ERESTART)
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error = EINTR;
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goto select_out;
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}
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if (args->timeout) {
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if (p->p_retval[0]) {
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/*
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* Compute how much time was left of the timeout,
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* by subtracting the current time and the time
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* before we started the call, and subtracting
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* that result from the user-supplied value.
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*/
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microtime(&tv1);
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timevalsub(&tv1, &tv0);
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timevalsub(&utv, &tv1);
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if (utv.tv_sec < 0)
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timevalclear(&utv);
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} else
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timevalclear(&utv);
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#ifdef DEBUG
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printf("Linux-emul(%ld): outgoing timeout (%ld/%ld)\n",
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(long)p->p_pid, utv.tv_sec, utv.tv_usec);
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#endif
|
|
if ((error = copyout(&utv, args->timeout, sizeof(utv))))
|
|
goto select_out;
|
|
}
|
|
|
|
select_out:
|
|
#ifdef DEBUG
|
|
printf("Linux-emul(%d): newselect_out -> %d\n",
|
|
p->p_pid, error);
|
|
#endif
|
|
return error;
|
|
}
|
|
|
|
int
|
|
linux_getpgid(struct proc *p, struct linux_getpgid_args *args)
|
|
{
|
|
struct proc *curproc;
|
|
|
|
#ifdef DEBUG
|
|
printf("Linux-emul(%d): getpgid(%d)\n", p->p_pid, args->pid);
|
|
#endif
|
|
if (args->pid != p->p_pid) {
|
|
if (!(curproc = pfind(args->pid)))
|
|
return ESRCH;
|
|
}
|
|
else
|
|
curproc = p;
|
|
p->p_retval[0] = curproc->p_pgid;
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
linux_fork(struct proc *p, struct linux_fork_args *args)
|
|
{
|
|
int error;
|
|
|
|
#ifdef DEBUG
|
|
printf("Linux-emul(%d): fork()\n", p->p_pid);
|
|
#endif
|
|
if (error = fork(p, (struct fork_args *)args))
|
|
return error;
|
|
if (p->p_retval[1] == 1)
|
|
p->p_retval[0] = 0;
|
|
return 0;
|
|
}
|
|
|
|
/* XXX move */
|
|
struct linux_mmap_argv {
|
|
linux_caddr_t addr;
|
|
int len;
|
|
int prot;
|
|
int flags;
|
|
int fd;
|
|
int pos;
|
|
};
|
|
|
|
int
|
|
linux_mmap(struct proc *p, struct linux_mmap_args *args)
|
|
{
|
|
struct mmap_args /* {
|
|
caddr_t addr;
|
|
size_t len;
|
|
int prot;
|
|
int flags;
|
|
int fd;
|
|
long pad;
|
|
off_t pos;
|
|
} */ bsd_args;
|
|
int error;
|
|
struct linux_mmap_argv linux_args;
|
|
|
|
if ((error = copyin((caddr_t)args->ptr, (caddr_t)&linux_args,
|
|
sizeof(linux_args))))
|
|
return error;
|
|
#ifdef DEBUG
|
|
printf("Linux-emul(%ld): mmap(%p, %d, %d, %08x, %d, %d)\n",
|
|
(long)p->p_pid, (void *)linux_args.addr, linux_args.len,
|
|
linux_args.prot, linux_args.flags, linux_args.fd, linux_args.pos);
|
|
#endif
|
|
bsd_args.flags = 0;
|
|
if (linux_args.flags & LINUX_MAP_SHARED)
|
|
bsd_args.flags |= MAP_SHARED;
|
|
if (linux_args.flags & LINUX_MAP_PRIVATE)
|
|
bsd_args.flags |= MAP_PRIVATE;
|
|
if (linux_args.flags & LINUX_MAP_FIXED)
|
|
bsd_args.flags |= MAP_FIXED;
|
|
if (linux_args.flags & LINUX_MAP_ANON)
|
|
bsd_args.flags |= MAP_ANON;
|
|
bsd_args.addr = linux_args.addr;
|
|
bsd_args.len = linux_args.len;
|
|
bsd_args.prot = linux_args.prot | PROT_READ; /* always required */
|
|
bsd_args.fd = linux_args.fd;
|
|
bsd_args.pos = linux_args.pos;
|
|
bsd_args.pad = 0;
|
|
return mmap(p, &bsd_args);
|
|
}
|
|
|
|
int
|
|
linux_mremap(struct proc *p, struct linux_mremap_args *args)
|
|
{
|
|
struct munmap_args /* {
|
|
void *addr;
|
|
size_t len;
|
|
} */ bsd_args;
|
|
int error = 0;
|
|
|
|
#ifdef DEBUG
|
|
printf("Linux-emul(%ld): mremap(%p, %08x, %08x, %08x)\n",
|
|
(long)p->p_pid, (void *)args->addr, args->old_len, args->new_len,
|
|
args->flags);
|
|
#endif
|
|
args->new_len = round_page(args->new_len);
|
|
args->old_len = round_page(args->old_len);
|
|
|
|
if (args->new_len > args->old_len) {
|
|
p->p_retval[0] = 0;
|
|
return ENOMEM;
|
|
}
|
|
|
|
if (args->new_len < args->old_len) {
|
|
bsd_args.addr = args->addr + args->new_len;
|
|
bsd_args.len = args->old_len - args->new_len;
|
|
error = munmap(p, &bsd_args);
|
|
}
|
|
|
|
p->p_retval[0] = error ? 0 : (int)args->addr;
|
|
return error;
|
|
}
|
|
|
|
int
|
|
linux_msync(struct proc *p, struct linux_msync_args *args)
|
|
{
|
|
struct msync_args bsd_args;
|
|
|
|
bsd_args.addr = args->addr;
|
|
bsd_args.len = args->len;
|
|
bsd_args.flags = 0; /* XXX ignore */
|
|
|
|
return msync(p, &bsd_args);
|
|
}
|
|
|
|
int
|
|
linux_pipe(struct proc *p, struct linux_pipe_args *args)
|
|
{
|
|
int error;
|
|
|
|
#ifdef DEBUG
|
|
printf("Linux-emul(%d): pipe(*)\n", p->p_pid);
|
|
#endif
|
|
if (error = pipe(p, 0))
|
|
return error;
|
|
if (error = copyout(p->p_retval, args->pipefds, 2*sizeof(int)))
|
|
return error;
|
|
p->p_retval[0] = 0;
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
linux_time(struct proc *p, struct linux_time_args *args)
|
|
{
|
|
struct timeval tv;
|
|
linux_time_t tm;
|
|
int error;
|
|
|
|
#ifdef DEBUG
|
|
printf("Linux-emul(%d): time(*)\n", p->p_pid);
|
|
#endif
|
|
microtime(&tv);
|
|
tm = tv.tv_sec;
|
|
if (args->tm && (error = copyout(&tm, args->tm, sizeof(linux_time_t))))
|
|
return error;
|
|
p->p_retval[0] = tm;
|
|
return 0;
|
|
}
|
|
|
|
struct linux_times_argv {
|
|
long tms_utime;
|
|
long tms_stime;
|
|
long tms_cutime;
|
|
long tms_cstime;
|
|
};
|
|
|
|
#define CLK_TCK 100 /* Linux uses 100 */
|
|
#define CONVTCK(r) (r.tv_sec * CLK_TCK + r.tv_usec / (1000000 / CLK_TCK))
|
|
|
|
int
|
|
linux_times(struct proc *p, struct linux_times_args *args)
|
|
{
|
|
struct timeval tv;
|
|
struct linux_times_argv tms;
|
|
struct rusage ru;
|
|
int error;
|
|
|
|
#ifdef DEBUG
|
|
printf("Linux-emul(%d): times(*)\n", p->p_pid);
|
|
#endif
|
|
calcru(p, &ru.ru_utime, &ru.ru_stime, NULL);
|
|
|
|
tms.tms_utime = CONVTCK(ru.ru_utime);
|
|
tms.tms_stime = CONVTCK(ru.ru_stime);
|
|
|
|
tms.tms_cutime = CONVTCK(p->p_stats->p_cru.ru_utime);
|
|
tms.tms_cstime = CONVTCK(p->p_stats->p_cru.ru_stime);
|
|
|
|
if ((error = copyout((caddr_t)&tms, (caddr_t)args->buf,
|
|
sizeof(struct linux_times_argv))))
|
|
return error;
|
|
|
|
microuptime(&tv);
|
|
p->p_retval[0] = (int)CONVTCK(tv);
|
|
return 0;
|
|
}
|
|
|
|
/* XXX move */
|
|
struct linux_newuname_t {
|
|
char sysname[65];
|
|
char nodename[65];
|
|
char release[65];
|
|
char version[65];
|
|
char machine[65];
|
|
char domainname[65];
|
|
};
|
|
|
|
int
|
|
linux_newuname(struct proc *p, struct linux_newuname_args *args)
|
|
{
|
|
struct linux_newuname_t linux_newuname;
|
|
|
|
#ifdef DEBUG
|
|
printf("Linux-emul(%d): newuname(*)\n", p->p_pid);
|
|
#endif
|
|
bzero(&linux_newuname, sizeof(struct linux_newuname_args));
|
|
strncpy(linux_newuname.sysname, ostype, 64);
|
|
strncpy(linux_newuname.nodename, hostname, 64);
|
|
strncpy(linux_newuname.release, osrelease, 64);
|
|
strncpy(linux_newuname.version, version, 64);
|
|
strncpy(linux_newuname.machine, machine, 64);
|
|
strncpy(linux_newuname.domainname, domainname, 64);
|
|
return (copyout((caddr_t)&linux_newuname, (caddr_t)args->buf,
|
|
sizeof(struct linux_newuname_t)));
|
|
}
|
|
|
|
struct linux_utimbuf {
|
|
linux_time_t l_actime;
|
|
linux_time_t l_modtime;
|
|
};
|
|
|
|
int
|
|
linux_utime(struct proc *p, struct linux_utime_args *args)
|
|
{
|
|
struct utimes_args /* {
|
|
char *path;
|
|
struct timeval *tptr;
|
|
} */ bsdutimes;
|
|
struct timeval tv[2], *tvp;
|
|
struct linux_utimbuf lut;
|
|
int error;
|
|
caddr_t sg;
|
|
|
|
sg = stackgap_init();
|
|
CHECKALTEXIST(p, &sg, args->fname);
|
|
|
|
#ifdef DEBUG
|
|
printf("Linux-emul(%d): utime(%s, *)\n", p->p_pid, args->fname);
|
|
#endif
|
|
if (args->times) {
|
|
if ((error = copyin(args->times, &lut, sizeof lut)))
|
|
return error;
|
|
tv[0].tv_sec = lut.l_actime;
|
|
tv[0].tv_usec = 0;
|
|
tv[1].tv_sec = lut.l_modtime;
|
|
tv[1].tv_usec = 0;
|
|
/* so that utimes can copyin */
|
|
tvp = (struct timeval *)stackgap_alloc(&sg, sizeof(tv));
|
|
if ((error = copyout(tv, tvp, sizeof(tv))))
|
|
return error;
|
|
bsdutimes.tptr = tvp;
|
|
} else
|
|
bsdutimes.tptr = NULL;
|
|
|
|
bsdutimes.path = args->fname;
|
|
return utimes(p, &bsdutimes);
|
|
}
|
|
|
|
int
|
|
linux_waitpid(struct proc *p, struct linux_waitpid_args *args)
|
|
{
|
|
struct wait_args /* {
|
|
int pid;
|
|
int *status;
|
|
int options;
|
|
struct rusage *rusage;
|
|
} */ tmp;
|
|
int error, tmpstat;
|
|
|
|
#ifdef DEBUG
|
|
printf("Linux-emul(%ld): waitpid(%d, %p, %d)\n",
|
|
(long)p->p_pid, args->pid, (void *)args->status, args->options);
|
|
#endif
|
|
tmp.pid = args->pid;
|
|
tmp.status = args->status;
|
|
tmp.options = args->options;
|
|
tmp.rusage = NULL;
|
|
|
|
if (error = wait4(p, &tmp))
|
|
return error;
|
|
if (args->status) {
|
|
if (error = copyin(args->status, &tmpstat, sizeof(int)))
|
|
return error;
|
|
if (WIFSIGNALED(tmpstat))
|
|
tmpstat = (tmpstat & 0xffffff80) |
|
|
bsd_to_linux_signal[WTERMSIG(tmpstat)];
|
|
else if (WIFSTOPPED(tmpstat))
|
|
tmpstat = (tmpstat & 0xffff00ff) |
|
|
(bsd_to_linux_signal[WSTOPSIG(tmpstat)]<<8);
|
|
return copyout(&tmpstat, args->status, sizeof(int));
|
|
} else
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
linux_wait4(struct proc *p, struct linux_wait4_args *args)
|
|
{
|
|
struct wait_args /* {
|
|
int pid;
|
|
int *status;
|
|
int options;
|
|
struct rusage *rusage;
|
|
} */ tmp;
|
|
int error, tmpstat;
|
|
|
|
#ifdef DEBUG
|
|
printf("Linux-emul(%ld): wait4(%d, %p, %d, %p)\n",
|
|
(long)p->p_pid, args->pid, (void *)args->status, args->options,
|
|
(void *)args->rusage);
|
|
#endif
|
|
tmp.pid = args->pid;
|
|
tmp.status = args->status;
|
|
tmp.options = args->options;
|
|
tmp.rusage = args->rusage;
|
|
|
|
if (error = wait4(p, &tmp))
|
|
return error;
|
|
|
|
p->p_siglist &= ~sigmask(SIGCHLD);
|
|
|
|
if (args->status) {
|
|
if (error = copyin(args->status, &tmpstat, sizeof(int)))
|
|
return error;
|
|
if (WIFSIGNALED(tmpstat))
|
|
tmpstat = (tmpstat & 0xffffff80) |
|
|
bsd_to_linux_signal[WTERMSIG(tmpstat)];
|
|
else if (WIFSTOPPED(tmpstat))
|
|
tmpstat = (tmpstat & 0xffff00ff) |
|
|
(bsd_to_linux_signal[WSTOPSIG(tmpstat)]<<8);
|
|
return copyout(&tmpstat, args->status, sizeof(int));
|
|
} else
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
linux_mknod(struct proc *p, struct linux_mknod_args *args)
|
|
{
|
|
caddr_t sg;
|
|
struct mknod_args bsd_mknod;
|
|
struct mkfifo_args bsd_mkfifo;
|
|
|
|
sg = stackgap_init();
|
|
|
|
CHECKALTCREAT(p, &sg, args->path);
|
|
|
|
#ifdef DEBUG
|
|
printf("Linux-emul(%d): mknod(%s, %d, %d)\n",
|
|
p->p_pid, args->path, args->mode, args->dev);
|
|
#endif
|
|
|
|
if (args->mode & S_IFIFO) {
|
|
bsd_mkfifo.path = args->path;
|
|
bsd_mkfifo.mode = args->mode;
|
|
return mkfifo(p, &bsd_mkfifo);
|
|
} else {
|
|
bsd_mknod.path = args->path;
|
|
bsd_mknod.mode = args->mode;
|
|
bsd_mknod.dev = args->dev;
|
|
return mknod(p, &bsd_mknod);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* UGH! This is just about the dumbest idea I've ever heard!!
|
|
*/
|
|
int
|
|
linux_personality(struct proc *p, struct linux_personality_args *args)
|
|
{
|
|
#ifdef DEBUG
|
|
printf("Linux-emul(%d): personality(%d)\n",
|
|
p->p_pid, args->per);
|
|
#endif
|
|
if (args->per != 0)
|
|
return EINVAL;
|
|
|
|
/* Yes Jim, it's still a Linux... */
|
|
p->p_retval[0] = 0;
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Wrappers for get/setitimer for debugging..
|
|
*/
|
|
int
|
|
linux_setitimer(struct proc *p, struct linux_setitimer_args *args)
|
|
{
|
|
struct setitimer_args bsa;
|
|
struct itimerval foo;
|
|
int error;
|
|
|
|
#ifdef DEBUG
|
|
printf("Linux-emul(%ld): setitimer(%p, %p)\n",
|
|
(long)p->p_pid, (void *)args->itv, (void *)args->oitv);
|
|
#endif
|
|
bsa.which = args->which;
|
|
bsa.itv = args->itv;
|
|
bsa.oitv = args->oitv;
|
|
if (args->itv) {
|
|
if ((error = copyin((caddr_t)args->itv, (caddr_t)&foo,
|
|
sizeof(foo))))
|
|
return error;
|
|
#ifdef DEBUG
|
|
printf("setitimer: value: sec: %ld, usec: %ld\n",
|
|
foo.it_value.tv_sec, foo.it_value.tv_usec);
|
|
printf("setitimer: interval: sec: %ld, usec: %ld\n",
|
|
foo.it_interval.tv_sec, foo.it_interval.tv_usec);
|
|
#endif
|
|
}
|
|
return setitimer(p, &bsa);
|
|
}
|
|
|
|
int
|
|
linux_getitimer(struct proc *p, struct linux_getitimer_args *args)
|
|
{
|
|
struct getitimer_args bsa;
|
|
#ifdef DEBUG
|
|
printf("Linux-emul(%ld): getitimer(%p)\n",
|
|
(long)p->p_pid, (void *)args->itv);
|
|
#endif
|
|
bsa.which = args->which;
|
|
bsa.itv = args->itv;
|
|
return getitimer(p, &bsa);
|
|
}
|
|
|
|
int
|
|
linux_iopl(struct proc *p, struct linux_iopl_args *args)
|
|
{
|
|
int error;
|
|
|
|
error = suser(p->p_ucred, &p->p_acflag);
|
|
if (error != 0)
|
|
return error;
|
|
if (securelevel > 0)
|
|
return EPERM;
|
|
p->p_md.md_regs->tf_eflags |= PSL_IOPL;
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
linux_nice(struct proc *p, struct linux_nice_args *args)
|
|
{
|
|
struct setpriority_args bsd_args;
|
|
|
|
bsd_args.which = PRIO_PROCESS;
|
|
bsd_args.who = 0; /* current process */
|
|
bsd_args.prio = args->inc;
|
|
return setpriority(p, &bsd_args);
|
|
}
|
|
|