mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-24 22:10:13 +00:00
123 lines
3.7 KiB
C
123 lines
3.7 KiB
C
/* Copyright (C) 1991, 92, 93, 94, 95, 96, 97 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 of the License, or (at your option) any later version.
|
|
|
|
The GNU C Library 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
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with the GNU C Library; if not, see
|
|
<http://www.gnu.org/licenses/>. */
|
|
|
|
#include <hurd.h>
|
|
#include <hurd/port.h>
|
|
#include <hurd/id.h>
|
|
#include "set-hooks.h"
|
|
|
|
/* Things in the library which want to be run when the auth port changes. */
|
|
DEFINE_HOOK (_hurd_reauth_hook, (auth_t new_auth));
|
|
|
|
#include <cthreads.h>
|
|
static struct mutex reauth_lock = MUTEX_INITIALIZER;
|
|
|
|
|
|
/* Set the auth port to NEW, and reauthenticate
|
|
everything used by the library. */
|
|
error_t
|
|
_hurd_setauth (auth_t new)
|
|
{
|
|
error_t err;
|
|
unsigned int d;
|
|
mach_port_t newport, ref;
|
|
|
|
/* Give the new send right a user reference.
|
|
This is a good way to check that it is valid. */
|
|
if (err = __mach_port_mod_refs (__mach_task_self (), new,
|
|
MACH_PORT_RIGHT_SEND, 1))
|
|
return err;
|
|
|
|
HURD_CRITICAL_BEGIN;
|
|
|
|
/* We lock against another thread doing setauth. Anyone who sets
|
|
_hurd_ports[INIT_PORT_AUTH] some other way is asking to lose. */
|
|
__mutex_lock (&reauth_lock);
|
|
|
|
/* Install the new port in the cell. */
|
|
__mutex_lock (&_hurd_id.lock);
|
|
_hurd_port_set (&_hurd_ports[INIT_PORT_AUTH], new);
|
|
_hurd_id.valid = 0;
|
|
if (_hurd_id.rid_auth)
|
|
{
|
|
__mach_port_deallocate (__mach_task_self (), _hurd_id.rid_auth);
|
|
_hurd_id.rid_auth = MACH_PORT_NULL;
|
|
}
|
|
__mutex_unlock (&_hurd_id.lock);
|
|
|
|
if (_hurd_init_dtable != NULL)
|
|
/* We just have the simple table we got at startup.
|
|
Otherwise, a reauth_hook in dtable.c takes care of this. */
|
|
for (d = 0; d < _hurd_init_dtablesize; ++d)
|
|
if (_hurd_init_dtable[d] != MACH_PORT_NULL)
|
|
{
|
|
mach_port_t new;
|
|
ref = __mach_reply_port ();
|
|
if (! __io_reauthenticate (_hurd_init_dtable[d],
|
|
ref, MACH_MSG_TYPE_MAKE_SEND) &&
|
|
! HURD_PORT_USE (&_hurd_ports[INIT_PORT_AUTH],
|
|
__auth_user_authenticate
|
|
(port,
|
|
ref, MACH_MSG_TYPE_MAKE_SEND,
|
|
&new)))
|
|
{
|
|
__mach_port_deallocate (__mach_task_self (),
|
|
_hurd_init_dtable[d]);
|
|
_hurd_init_dtable[d] = new;
|
|
}
|
|
__mach_port_destroy (__mach_task_self (), ref);
|
|
}
|
|
|
|
ref = __mach_reply_port ();
|
|
if (__USEPORT (CRDIR,
|
|
! __io_reauthenticate (port,
|
|
ref, MACH_MSG_TYPE_MAKE_SEND) &&
|
|
! __auth_user_authenticate (new,
|
|
ref, MACH_MSG_TYPE_MAKE_SEND,
|
|
&newport)))
|
|
_hurd_port_set (&_hurd_ports[INIT_PORT_CRDIR], newport);
|
|
__mach_port_destroy (__mach_task_self (), ref);
|
|
|
|
ref = __mach_reply_port ();
|
|
if (__USEPORT (CWDIR,
|
|
! __io_reauthenticate (port,
|
|
ref, MACH_MSG_TYPE_MAKE_SEND) &&
|
|
! __auth_user_authenticate (new,
|
|
ref, MACH_MSG_TYPE_MAKE_SEND,
|
|
&newport)))
|
|
_hurd_port_set (&_hurd_ports[INIT_PORT_CWDIR], newport);
|
|
__mach_port_destroy (__mach_task_self (), ref);
|
|
|
|
/* Run things which want to do reauthorization stuff. */
|
|
RUN_HOOK (_hurd_reauth_hook, (new));
|
|
|
|
__mutex_unlock (&reauth_lock);
|
|
|
|
HURD_CRITICAL_END;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
__setauth (auth_t new)
|
|
{
|
|
error_t err = _hurd_setauth (new);
|
|
return err ? __hurd_fail (err) : 0;
|
|
}
|
|
|
|
weak_alias (__setauth, setauth)
|