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/*
* Copyright (c) 1997, 1998, 1999 The University of Utah and the Flux Group.
*
* This file is part of the OSKit Linux Glue Libraries, which are free
* software, also known as "open source;" you can redistribute them and/or
* modify them under the terms of the GNU General Public License (GPL),
* version 2, as published by the Free Software Foundation (FSF).
*
* The OSKit 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 GPL for more details. You should have
* received a copy of the GPL along with the OSKit; see the file COPYING. If
* not, write to the FSF, 59 Temple Place #330, Boston, MA 02111-1307, USA.
*/
/*
* Code to initialize `current' from a stack-allocated task_struct.
*/
#include <oskit/types.h>
#include <oskit/principal.h>
#include <oskit/error.h>
#include <linux/malloc.h>
#include <linux/sched.h>
#include <linux/mm.h>
#include "current.h"
oskit_error_t
fs_linux_create_current(struct task_struct *ts)
{
oskit_principal_t *prin;
oskit_identity_t id;
oskit_error_t err;
int i;
ts->state = TASK_RUNNING;
ts->counter = 0;
err = oskit_get_call_context(&oskit_principal_iid, (void *)&prin);
if (!err) {
err = oskit_principal_getid(prin, &id);
if (err) {
oskit_principal_release(prin);
return err;
}
ts->fsuid = id.uid;
ts->fsgid = id.gid;
ts->uid = id.uid;
ts->gid = id.gid;
for (i = 0; i < id.ngroups && i < NGROUPS; i++)
ts->groups[i] = id.groups[i];
for ( ; i < NGROUPS; i++)
ts->groups[i] = NOGROUP;
oskit_principal_release(prin);
}
else {
ts->fsuid = ts->fsgid = ts->uid = ts->gid = 0;
for (i = 0; i < NGROUPS; i++)
ts->groups[i] = NOGROUP;
}
ts->rlim[RLIMIT_FSIZE].rlim_cur = RLIM_INFINITY;
ts->rlim[RLIMIT_FSIZE].rlim_max = RLIM_INFINITY;
ts->link_count = 0;
ts->fs = kmalloc(sizeof(struct fs_struct), GFP_KERNEL);
if (ts->fs == NULL)
return OSKIT_ENOMEM;
atomic_set(&ts->fs->count, 0);
ts->fs->umask = 0;
ts->fs->root = NULL;
ts->fs->pwd = NULL;
current = ts;
return 0;
}
void
fs_linux_destroy_current(void)
{
kfree(current->fs);
current = (struct task_struct *)0xdeadcccc;
}
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