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/* Proc server host management calls
Copyright (C) 1992, 1993, 1994 Free Software Foundation
This file is part of the GNU Hurd.
The GNU Hurd is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
The GNU Hurd is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with the GNU Hurd; see the file COPYING. If not, write to
the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
/* Written by Michael I. Bushnell. */
#include <mach.h>
#include <sys/types.h>
#include <hurd/hurd_types.h>
#include <stdlib.h>
#include <errno.h>
#include <mach/notify.h>
#include <string.h>
#include <hurd/exec.h>
#include "proc.h"
#include "proc_S.h"
static long hostid;
static char *hostname;
static int hostnamelen;
static mach_port_t *std_port_array;
static int *std_int_array;
static int n_std_ports, n_std_ints;
struct execdata_notify
{
mach_port_t notify_port;
struct execdata_notify *next;
} *execdata_notifys;
/* Implement proc_sethostid as described in <hurd/proc.defs>. */
kern_return_t
S_proc_sethostid (struct proc *p,
int newhostid)
{
if (! check_uid (p, 0))
return EPERM;
hostid = newhostid;
return 0;
}
/* Implement proc_gethostid as described in <hurd/proc.defs>. */
kern_return_t
S_proc_gethostid (struct proc *p,
int *outhostid)
{
*outhostid = hostid;
return 0;
}
/* Implement proc_sethostname as described in <hurd/proc.defs>. */
kern_return_t
S_proc_sethostname (struct proc *p,
char *newhostname,
u_int newhostnamelen)
{
if (! check_uid (p, 0))
return EPERM;
if (hostname)
free (hostname);
hostname = malloc (newhostnamelen + 1);
hostnamelen = newhostnamelen;
bcopy (newhostname, hostname, newhostnamelen);
hostname[newhostnamelen] = '\0';
return 0;
}
/* Implement proc_gethostname as described in <hurd/proc.defs>. */
kern_return_t
S_proc_gethostname (struct proc *p,
char **outhostname,
u_int *outhostnamelen)
{
if (*outhostnamelen < hostnamelen + 1)
vm_allocate (mach_task_self (), (vm_address_t *)outhostname,
hostnamelen + 1, 1);
*outhostnamelen = hostnamelen + 1;
if (hostname)
bcopy (hostname, *outhostname, hostnamelen + 1);
else
**outhostname = '\0';
return 0;
}
/* Implement proc_getprivports as described in <hurd/proc.defs>. */
kern_return_t
S_proc_getprivports (struct proc *p,
mach_port_t *hostpriv,
mach_port_t *devpriv)
{
if (! check_uid (p, 0))
return EPERM;
*hostpriv = master_host_port;
*devpriv = master_device_port;
return 0;
}
/* Implement proc_setexecdata as described in <hurd/proc.defs>. */
kern_return_t
S_proc_setexecdata (struct proc *p,
mach_port_t *ports,
u_int nports,
int *ints,
u_int nints)
{
int i;
struct execdata_notify *n;
if (!check_uid (p, 0))
return EPERM;
if (std_port_array)
{
for (i = 0; i < n_std_ports; i++)
mach_port_deallocate (mach_task_self (), std_port_array[i]);
free (std_port_array);
}
if (std_int_array)
free (std_int_array);
std_port_array = malloc (sizeof (mach_port_t) * nports);
n_std_ports = nports;
bcopy (ports, std_port_array, sizeof (mach_port_t) * nports);
std_int_array = malloc (sizeof (int) * nints);
n_std_ints = nints;
bcopy (ints, std_int_array, sizeof (int) * nints);
for (n = execdata_notifys; n; n = n->next)
exec_setexecdata (n->notify_port, std_port_array, MACH_MSG_TYPE_COPY_SEND,
n_std_ports, std_int_array, n_std_ints);
return 0;
}
/* Implement proc_getexecdata as described in <hurd/proc.defs>. */
kern_return_t
S_proc_getexecdata (struct proc *p,
mach_port_t **ports,
mach_msg_type_name_t *portspoly,
u_int *nports,
int **ints,
u_int *nints)
{
/* XXX memory leak here */
if (*nports < n_std_ports)
*ports = malloc (n_std_ports * sizeof (mach_port_t));
bcopy (std_port_array, *ports, n_std_ports * sizeof (mach_port_t));
*nports = n_std_ports;
if (*nints < n_std_ints)
*ints = malloc (n_std_ints * sizeof (mach_port_t));
bcopy (std_int_array, *ints, n_std_ints * sizeof (int));
*nints = n_std_ints;
return 0;
}
/* Implement proc_execdata_notify as described in <hurd/proc.defs>. */
kern_return_t
S_proc_execdata_notify (struct proc *p,
mach_port_t notify)
{
struct execdata_notify *n = malloc (sizeof (struct execdata_notify));
mach_port_t foo;
n->notify_port = notify;
n->next = execdata_notifys;
execdata_notifys = n;
mach_port_request_notification (mach_task_self (), notify,
MACH_NOTIFY_DEAD_NAME, 1,
generic_port, MACH_MSG_TYPE_MAKE_SEND_ONCE,
&foo);
if (foo)
mach_port_deallocate (mach_task_self (), foo);
exec_setexecdata (n->notify_port, std_port_array, MACH_MSG_TYPE_COPY_SEND,
n_std_ports, std_int_array, n_std_ints);
return 0;
}
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