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/*
Unix SMB/Netbios implementation.
Version 1.9.
Samba utility functions
Copyright (C) Andrew Tridgell 1992-2000
Copyright (C) Luke Kenneth Casson Leighton 1996-2000
This program 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 of the License, or
(at your option) any later version.
This program 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 this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/*
* this module stores a user_struct which can be globally accessed (by root)
* across process boundaries, in order to obtain info about users currently
* accessing * samba.
*
* the database key is the process number (pid) of the creater of the
* structure plus the vuid - SMB virtual user id. NORMALLY, this would
* be smbd pid and an smbd-generated vuid.
*
*/
#include "includes.h"
extern int DEBUGLEVEL;
static TDB_CONTEXT *tdb = NULL;
BOOL tdb_delete_vuid( const vuser_key *uk)
{
prs_struct key;
vuser_key k = *uk;
if (tdb == NULL)
{
if (!vuid_init_db())
{
return False;
}
}
DEBUG(10,("delete user %x,%x\n", uk->pid, uk->vuid));
prs_init(&key, 0, 4, False);
if (!vuid_io_key("key", &k, &key, 0))
{
return False;
}
prs_tdb_delete(tdb, &key);
prs_free_data(&key);
return True;
}
BOOL tdb_lookup_vuid( const vuser_key *uk, user_struct *usr)
{
prs_struct key;
prs_struct data;
vuser_key k = *uk;
ZERO_STRUCTP(usr);
if (tdb == NULL)
{
if (!vuid_init_db())
{
return False;
}
}
DEBUG(10,("lookup user %x,%x\n", uk->pid, uk->vuid));
prs_init(&key, 0, 4, False);
if (!vuid_io_key("key", &k, &key, 0))
{
return False;
}
prs_tdb_fetch(tdb, &key, &data);
if (usr != NULL)
{
if (!vuid_io_user_struct("usr", usr, &data, 0))
{
prs_free_data(&key);
prs_free_data(&data);
return False;
}
}
prs_free_data(&key);
prs_free_data(&data);
return True;
}
BOOL tdb_store_vuid( const vuser_key *uk, user_struct *usr)
{
prs_struct key;
prs_struct data;
vuser_key k = *uk;
if (tdb == NULL)
{
if (!vuid_init_db())
{
return False;
}
}
DEBUG(10,("storing user %x,%x\n", uk->pid, uk->vuid));
prs_init(&key, 0, 4, False);
prs_init(&data, 0, 4, False);
if (!vuid_io_key("key", &k, &key, 0) ||
!vuid_io_user_struct("usr", usr, &data, 0) ||
prs_tdb_store(tdb, TDB_REPLACE, &key, &data) != 0)
{
prs_free_data(&key);
prs_free_data(&data);
return False;
}
prs_free_data(&key);
prs_free_data(&data);
return True;
}
BOOL vuid_init_db(void)
{
tdb = tdb_open(lock_path("vuid.tdb"), 0, 0, O_RDWR | O_CREAT, 0600);
if (tdb == NULL)
{
DEBUG(0,("vuid_init_db: failed\n"));
return False;
}
DEBUG(10,("vuid_init_db: opened\n"));
return True;
}
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