273 lines
8.5 KiB
C
273 lines
8.5 KiB
C
/* $NetBSD: mach_task.c,v 1.20 2003/01/21 04:06:08 matt Exp $ */
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/*-
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* Copyright (c) 2002 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Emmanuel Dreyfus
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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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* 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. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "opt_compat_darwin.h"
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: mach_task.c,v 1.20 2003/01/21 04:06:08 matt Exp $");
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#include <sys/types.h>
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#include <sys/param.h>
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#include <sys/exec.h>
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#include <sys/systm.h>
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#include <uvm/uvm_extern.h>
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#include <uvm/uvm_param.h>
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#include <compat/mach/mach_types.h>
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#include <compat/mach/mach_message.h>
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#include <compat/mach/mach_clock.h>
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#include <compat/mach/mach_errno.h>
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#include <compat/mach/mach_exec.h>
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#include <compat/mach/mach_port.h>
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#include <compat/mach/mach_task.h>
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#include <compat/mach/mach_syscallargs.h>
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#ifdef COMPAT_DARWIN
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#include <compat/darwin/darwin_exec.h>
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#endif
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int
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mach_task_get_special_port(args)
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struct mach_trap_args *args;
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{
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mach_task_get_special_port_request_t *req = args->smsg;
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mach_task_get_special_port_reply_t *rep = args->rmsg;
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size_t *msglen = args->rsize;
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struct lwp *l = args->l;
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struct mach_emuldata *med;
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struct mach_right *mr;
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int error;
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med = (struct mach_emuldata *)l->l_emuldata;
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switch (req->req_which_port) {
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case MACH_TASK_KERNEL_PORT:
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mr = mach_right_get(med->med_kernel, l, MACH_PORT_TYPE_SEND, 0);
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break;
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case MACH_TASK_HOST_PORT:
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mr = mach_right_get(med->med_host, l, MACH_PORT_TYPE_SEND, 0);
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break;
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case MACH_TASK_BOOTSTRAP_PORT:
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mr = mach_right_get(med->med_bootstrap,
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l, MACH_PORT_TYPE_SEND, 0);
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#ifdef DEBUG_MACH
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printf("*** get bootstrap right %p, port %p, recv %p [%p]\n",
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mr, mr->mr_port, mr->mr_port->mp_recv,
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mr->mr_port->mp_recv->mr_sethead);
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#endif
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break;
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case MACH_TASK_WIRED_LEDGER_PORT:
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case MACH_TASK_PAGED_LEDGER_PORT:
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default:
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uprintf("mach_task_get_special_port(): unimpl. port %d\n",
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req->req_which_port);
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return mach_msg_error(args, error);
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break;
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}
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rep->rep_msgh.msgh_bits =
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MACH_MSGH_REPLY_LOCAL_BITS(MACH_MSG_TYPE_MOVE_SEND_ONCE) |
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MACH_MSGH_BITS_COMPLEX;
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rep->rep_msgh.msgh_size = sizeof(*rep) - sizeof(rep->rep_trailer);
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rep->rep_msgh.msgh_local_port = req->req_msgh.msgh_local_port;
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rep->rep_msgh.msgh_id = req->req_msgh.msgh_id + 100;
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rep->rep_msgh_body.msgh_descriptor_count = 1;
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rep->rep_special_port.name = (mach_port_t)mr->mr_name;
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rep->rep_special_port.disposition = 0x11; /* XXX why? */
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rep->rep_trailer.msgh_trailer_size = 8;
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*msglen = sizeof(*rep);
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return 0;
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}
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int
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mach_ports_lookup(args)
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struct mach_trap_args *args;
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{
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mach_ports_lookup_request_t *req = args->smsg;
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mach_ports_lookup_reply_t *rep = args->rmsg;
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size_t *msglen = args->rsize;
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struct lwp *l = args->l;
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struct mach_emuldata *med;
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struct mach_right *msp[7];
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vaddr_t va;
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int error;
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/*
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* This is some out of band data sent with the reply. In the
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* encountered situation the out of band data has always been null
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* filled. We have to see more of this in order to fully understand
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* how this trap works.
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*/
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va = vm_map_min(&l->l_proc->p_vmspace->vm_map);
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if ((error = uvm_map(&l->l_proc->p_vmspace->vm_map, &va, PAGE_SIZE,
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NULL, UVM_UNKNOWN_OFFSET, 0, UVM_MAPFLAG(UVM_PROT_RW, UVM_PROT_ALL,
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UVM_INH_COPY, UVM_ADV_NORMAL, UVM_FLAG_COPYONW))) != 0)
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return mach_msg_error(args, error);
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med = (struct mach_emuldata *)l->l_emuldata;
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msp[0] = MACH_PORT_DEAD;
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msp[3] = MACH_PORT_DEAD;
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msp[5] = MACH_PORT_DEAD;
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msp[6] = MACH_PORT_DEAD;
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msp[MACH_TASK_KERNEL_PORT] =
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mach_right_get(med->med_kernel, l, MACH_PORT_TYPE_SEND, 0);
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msp[MACH_TASK_HOST_PORT] =
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mach_right_get(med->med_host, l, MACH_PORT_TYPE_SEND, 0);
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msp[MACH_TASK_BOOTSTRAP_PORT] =
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mach_right_get(med->med_bootstrap, l, MACH_PORT_TYPE_SEND, 0);
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/*
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* On Darwin, the data seems always null...
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*/
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if ((error = copyout(&msp[0], (void *)va, sizeof(msp))) != 0)
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return mach_msg_error(args, error);
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rep->rep_msgh.msgh_bits =
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MACH_MSGH_REPLY_LOCAL_BITS(MACH_MSG_TYPE_MOVE_SEND_ONCE) |
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MACH_MSGH_BITS_COMPLEX;
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rep->rep_msgh.msgh_size = sizeof(*rep) - sizeof(rep->rep_trailer);
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rep->rep_msgh.msgh_local_port = req->req_msgh.msgh_local_port;
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rep->rep_msgh.msgh_id = req->req_msgh.msgh_id + 100;
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rep->rep_msgh_body.msgh_descriptor_count = 1; /* XXX why ? */
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rep->rep_init_port_set.address = (void *)va;
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rep->rep_init_port_set.count = 3; /* XXX why ? */
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rep->rep_init_port_set.copy = 2; /* XXX why ? */
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rep->rep_init_port_set.disposition = 0x11; /* XXX why? */
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rep->rep_init_port_set.type = 2; /* XXX why? */
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rep->rep_init_port_set_count = 3; /* XXX why? */
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rep->rep_trailer.msgh_trailer_size = 8;
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*msglen = sizeof(*rep);
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return 0;
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}
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int
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mach_task_set_special_port(args)
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struct mach_trap_args *args;
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{
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mach_task_set_special_port_request_t *req = args->smsg;
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mach_task_set_special_port_reply_t *rep = args->rmsg;
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size_t *msglen = args->rsize;
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struct lwp *l = args->l;
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mach_port_t mn;
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struct mach_right *mr;
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struct mach_port *mp;
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struct mach_emuldata *med;
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mn = req->req_special_port.name;
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/* Null port ? */
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if (mn == NULL)
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return mach_msg_error(args, 0);
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/* Does the inserted port exists? */
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if ((mr = mach_right_check(mn, l, MACH_PORT_TYPE_ALL_RIGHTS)) == 0)
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return mach_msg_error(args, EPERM);
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if (mr->mr_type == MACH_PORT_TYPE_DEAD_NAME)
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return mach_msg_error(args, EINVAL);
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med = (struct mach_emuldata *)l->l_emuldata;
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switch (req->req_which_port) {
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case MACH_TASK_KERNEL_PORT:
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mp = med->med_kernel;
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med->med_kernel = mr->mr_port;
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mp->mp_refcount--;
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if (mp->mp_refcount == 0)
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mach_port_put(mp);
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break;
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case MACH_TASK_HOST_PORT:
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mp = med->med_host;
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med->med_host = mr->mr_port;
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mp->mp_refcount--;
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if (mp->mp_refcount == 0)
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mach_port_put(mp);
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break;
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case MACH_TASK_BOOTSTRAP_PORT:
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mp = med->med_bootstrap;
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med->med_bootstrap = mr->mr_port;
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mp->mp_refcount--;
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if (mp->mp_refcount == 0)
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mach_port_put(mp);
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#ifdef COMPAT_DARWIN
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/*
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* mach_init sets the bootstrap port for any new process
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*/
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{
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struct darwin_emuldata *ded;
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ded = l->l_emuldata;
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if (ded->ded_fakepid == 1) {
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mach_bootstrap_port = med->med_bootstrap;
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#ifdef DEBUG_DARWIN
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printf("*** New bootstrap port %p, "
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"recv %p [%p]\n",
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mach_bootstrap_port,
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mach_bootstrap_port->mp_recv,
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mach_bootstrap_port->mp_recv->mr_sethead);
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#endif /* DEBUG_DARWIN */
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}
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}
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#endif /* COMPAT_DARWIN */
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break;
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default:
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uprintf("mach_task_set_special_port: unimplemented port %d\n",
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req->req_which_port);
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}
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rep->rep_msgh.msgh_bits =
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MACH_MSGH_REPLY_LOCAL_BITS(MACH_MSG_TYPE_MOVE_SEND_ONCE);
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rep->rep_msgh.msgh_size = sizeof(*rep) - sizeof(rep->rep_trailer);
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rep->rep_msgh.msgh_local_port = req->req_msgh.msgh_local_port;
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rep->rep_msgh.msgh_id = req->req_msgh.msgh_id + 100;
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rep->rep_trailer.msgh_trailer_size = 8;
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*msglen = sizeof(*rep);
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return 0;
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}
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