NetBSD/sys/compat/mach/mach_task.c

273 lines
8.5 KiB
C

/* $NetBSD: mach_task.c,v 1.19 2002/12/31 15:47:38 manu Exp $ */
/*-
* Copyright (c) 2002 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Emmanuel Dreyfus
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include "opt_compat_darwin.h"
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: mach_task.c,v 1.19 2002/12/31 15:47:38 manu Exp $");
#include <sys/types.h>
#include <sys/param.h>
#include <sys/exec.h>
#include <sys/systm.h>
#include <uvm/uvm_extern.h>
#include <uvm/uvm_param.h>
#include <compat/mach/mach_types.h>
#include <compat/mach/mach_message.h>
#include <compat/mach/mach_clock.h>
#include <compat/mach/mach_errno.h>
#include <compat/mach/mach_exec.h>
#include <compat/mach/mach_port.h>
#include <compat/mach/mach_task.h>
#include <compat/mach/mach_syscallargs.h>
#ifdef COMPAT_DARWIN
#include <compat/darwin/darwin_exec.h>
#endif
int
mach_task_get_special_port(args)
struct mach_trap_args *args;
{
mach_task_get_special_port_request_t *req = args->smsg;
mach_task_get_special_port_reply_t *rep = args->rmsg;
size_t *msglen = args->rsize;
struct proc *p = args->p;
struct mach_emuldata *med;
struct mach_right *mr;
int error;
med = (struct mach_emuldata *)p->p_emuldata;
switch (req->req_which_port) {
case MACH_TASK_KERNEL_PORT:
mr = mach_right_get(med->med_kernel, p, MACH_PORT_TYPE_SEND, 0);
break;
case MACH_TASK_HOST_PORT:
mr = mach_right_get(med->med_host, p, MACH_PORT_TYPE_SEND, 0);
break;
case MACH_TASK_BOOTSTRAP_PORT:
mr = mach_right_get(med->med_bootstrap,
p, MACH_PORT_TYPE_SEND, 0);
#ifdef DEBUG_MACH
printf("*** get bootstrap right %p, port %p, recv %p [%p]\n",
mr, mr->mr_port, mr->mr_port->mp_recv,
mr->mr_port->mp_recv->mr_sethead);
#endif
break;
case MACH_TASK_WIRED_LEDGER_PORT:
case MACH_TASK_PAGED_LEDGER_PORT:
default:
uprintf("mach_task_get_special_port(): unimpl. port %d\n",
req->req_which_port);
return mach_msg_error(args, error);
break;
}
rep->rep_msgh.msgh_bits =
MACH_MSGH_REPLY_LOCAL_BITS(MACH_MSG_TYPE_MOVE_SEND_ONCE) |
MACH_MSGH_BITS_COMPLEX;
rep->rep_msgh.msgh_size = sizeof(*rep) - sizeof(rep->rep_trailer);
rep->rep_msgh.msgh_local_port = req->req_msgh.msgh_local_port;
rep->rep_msgh.msgh_id = req->req_msgh.msgh_id + 100;
rep->rep_msgh_body.msgh_descriptor_count = 1;
rep->rep_special_port.name = (mach_port_t)mr->mr_name;
rep->rep_special_port.disposition = 0x11; /* XXX why? */
rep->rep_trailer.msgh_trailer_size = 8;
*msglen = sizeof(*rep);
return 0;
}
int
mach_ports_lookup(args)
struct mach_trap_args *args;
{
mach_ports_lookup_request_t *req = args->smsg;
mach_ports_lookup_reply_t *rep = args->rmsg;
size_t *msglen = args->rsize;
struct proc *p = args->p;
struct mach_emuldata *med;
struct mach_right *msp[7];
vaddr_t va;
int error;
/*
* This is some out of band data sent with the reply. In the
* encountered situation the out of band data has always been null
* filled. We have to see more of this in order to fully understand
* how this trap works.
*/
va = vm_map_min(&p->p_vmspace->vm_map);
if ((error = uvm_map(&p->p_vmspace->vm_map, &va, PAGE_SIZE, NULL,
UVM_UNKNOWN_OFFSET, 0, UVM_MAPFLAG(UVM_PROT_RW, UVM_PROT_ALL,
UVM_INH_COPY, UVM_ADV_NORMAL, UVM_FLAG_COPYONW))) != 0)
return mach_msg_error(args, error);
med = (struct mach_emuldata *)p->p_emuldata;
msp[0] = MACH_PORT_DEAD;
msp[3] = MACH_PORT_DEAD;
msp[5] = MACH_PORT_DEAD;
msp[6] = MACH_PORT_DEAD;
msp[MACH_TASK_KERNEL_PORT] =
mach_right_get(med->med_kernel, p, MACH_PORT_TYPE_SEND, 0);
msp[MACH_TASK_HOST_PORT] =
mach_right_get(med->med_host, p, MACH_PORT_TYPE_SEND, 0);
msp[MACH_TASK_BOOTSTRAP_PORT] =
mach_right_get(med->med_bootstrap, p, MACH_PORT_TYPE_SEND, 0);
/*
* On Darwin, the data seems always null...
*/
if ((error = copyout(&msp[0], (void *)va, sizeof(msp))) != 0)
return mach_msg_error(args, error);
rep->rep_msgh.msgh_bits =
MACH_MSGH_REPLY_LOCAL_BITS(MACH_MSG_TYPE_MOVE_SEND_ONCE) |
MACH_MSGH_BITS_COMPLEX;
rep->rep_msgh.msgh_size = sizeof(*rep) - sizeof(rep->rep_trailer);
rep->rep_msgh.msgh_local_port = req->req_msgh.msgh_local_port;
rep->rep_msgh.msgh_id = req->req_msgh.msgh_id + 100;
rep->rep_msgh_body.msgh_descriptor_count = 1; /* XXX why ? */
rep->rep_init_port_set.address = (void *)va;
rep->rep_init_port_set.count = 3; /* XXX why ? */
rep->rep_init_port_set.copy = 2; /* XXX why ? */
rep->rep_init_port_set.disposition = 0x11; /* XXX why? */
rep->rep_init_port_set.type = 2; /* XXX why? */
rep->rep_init_port_set_count = 3; /* XXX why? */
rep->rep_trailer.msgh_trailer_size = 8;
*msglen = sizeof(*rep);
return 0;
}
int
mach_task_set_special_port(args)
struct mach_trap_args *args;
{
mach_task_set_special_port_request_t *req = args->smsg;
mach_task_set_special_port_reply_t *rep = args->rmsg;
size_t *msglen = args->rsize;
struct proc *p = args->p;
mach_port_t mn;
struct mach_right *mr;
struct mach_port *mp;
struct mach_emuldata *med;
mn = req->req_special_port.name;
/* Null port ? */
if (mn == NULL)
return mach_msg_error(args, 0);
/* Does the inserted port exists? */
if ((mr = mach_right_check(mn, p, MACH_PORT_TYPE_ALL_RIGHTS)) == 0)
return mach_msg_error(args, EPERM);
if (mr->mr_type == MACH_PORT_TYPE_DEAD_NAME)
return mach_msg_error(args, EINVAL);
med = (struct mach_emuldata *)p->p_emuldata;
switch (req->req_which_port) {
case MACH_TASK_KERNEL_PORT:
mp = med->med_kernel;
med->med_kernel = mr->mr_port;
mp->mp_refcount--;
if (mp->mp_refcount == 0)
mach_port_put(mp);
break;
case MACH_TASK_HOST_PORT:
mp = med->med_host;
med->med_host = mr->mr_port;
mp->mp_refcount--;
if (mp->mp_refcount == 0)
mach_port_put(mp);
break;
case MACH_TASK_BOOTSTRAP_PORT:
mp = med->med_bootstrap;
med->med_bootstrap = mr->mr_port;
mp->mp_refcount--;
if (mp->mp_refcount == 0)
mach_port_put(mp);
#ifdef COMPAT_DARWIN
/*
* mach_init sets the bootstrap port for any new process
*/
{
struct darwin_emuldata *ded;
ded = p->p_emuldata;
if (ded->ded_fakepid == 1) {
mach_bootstrap_port = med->med_bootstrap;
#ifdef DEBUG_DARWIN
printf("*** New bootstrap port %p, "
"recv %p [%p]\n",
mach_bootstrap_port,
mach_bootstrap_port->mp_recv,
mach_bootstrap_port->mp_recv->mr_sethead);
#endif /* DEBUG_DARWIN */
}
}
#endif /* COMPAT_DARWIN */
break;
default:
uprintf("mach_task_set_special_port: unimplemented port %d\n",
req->req_which_port);
}
rep->rep_msgh.msgh_bits =
MACH_MSGH_REPLY_LOCAL_BITS(MACH_MSG_TYPE_MOVE_SEND_ONCE);
rep->rep_msgh.msgh_size = sizeof(*rep) - sizeof(rep->rep_trailer);
rep->rep_msgh.msgh_local_port = req->req_msgh.msgh_local_port;
rep->rep_msgh.msgh_id = req->req_msgh.msgh_id + 100;
rep->rep_trailer.msgh_trailer_size = 8;
*msglen = sizeof(*rep);
return 0;
}