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/*
Unix SMB/CIFS implementation.
tdb passdb backend format routines
Copyright (C) Andrew Tridgell 1992-1998
Copyright (C) Simo Sorce 2000-2003
Copyright (C) Gerald Carter 2000
Copyright (C) Jeremy Allison 2001
Copyright (C) Andrew Bartlett 2002
Copyright (C) Jelmer Vernooij 2005
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.
*/
#include "includes.h"
#include "system/iconv.h"
#include "system/filesys.h"
#include "lib/tdb/include/tdbutil.h"
#include "lib/samba3/samba3.h"
#define TDB_FORMAT_STRING_V0 "ddddddBBBBBBBBBBBBddBBwdwdBwwd"
#define TDB_FORMAT_STRING_V1 "dddddddBBBBBBBBBBBBddBBwdwdBwwd"
#define TDB_FORMAT_STRING_V2 "dddddddBBBBBBBBBBBBddBBBwwdBwwd"
#define TDBSAM_VERSION_STRING "INFO/version"
/**
* Open the TDB passwd database, check version and convert it if needed.
* @param name filename of the tdbsam file.
* @param version version of the tdbsam database
* @return a TDB_CONTEXT handle on the tdbsam file.
**/
static TDB_CONTEXT *tdbsam_open (const char *name, int32_t *version)
{
TDB_CONTEXT *pdb_tdb;
/* Try to open tdb passwd */
if (!(pdb_tdb = tdb_open(name, 0, TDB_DEFAULT,
O_RDONLY, 0600))) {
DEBUG(0, ("Unable to open TDB passwd\n"));
return NULL;
}
/* Check the version */
*version = tdb_fetch_int32(pdb_tdb,
TDBSAM_VERSION_STRING);
if (*version == -1)
*version = 0; /* Version not found, assume version 0 */
/* Compare the version */
if (*version > 2) {
/* Version more recent than the latest known */
DEBUG(0, ("TDBSAM version unknown: %d\n", *version));
tdb_close(pdb_tdb);
pdb_tdb = NULL;
}
return pdb_tdb;
}
static BOOL init_sam_from_buffer_v0(TDB_CONTEXT *tdb, struct samba3_samaccount *sampass, TDB_DATA buf)
{
uint32_t username_len, domain_len, nt_username_len,
dir_drive_len, unknown_str_len, munged_dial_len,
fullname_len, homedir_len, logon_script_len,
profile_path_len, acct_desc_len, workstations_len;
uint32_t remove_me;
uint32_t len = 0;
uint32_t lm_pw_len, nt_pw_len, hourslen;
if(sampass == NULL || buf.dptr == NULL) {
DEBUG(0, ("init_sam_from_buffer_v0: NULL parameters found!\n"));
return False;
}
/* unpack the buffer into variables */
len = tdb_unpack (tdb, (char *)buf.dptr, buf.dsize, TDB_FORMAT_STRING_V0,
&sampass->logon_time, /* d */
&sampass->logoff_time, /* d */
&sampass->kickoff_time, /* d */
&sampass->pass_last_set_time, /* d */
&sampass->pass_can_change_time, /* d */
&sampass->pass_must_change_time, /* d */
&username_len, &sampass->username, /* B */
&domain_len, &sampass->domain, /* B */
&nt_username_len, &sampass->nt_username, /* B */
&fullname_len, &sampass->fullname, /* B */
&homedir_len, &sampass->homedir, /* B */
&dir_drive_len, &sampass->dir_drive, /* B */
&logon_script_len, &sampass->logon_script, /* B */
&profile_path_len, &sampass->profile_path, /* B */
&acct_desc_len, &sampass->acct_desc, /* B */
&workstations_len, &sampass->workstations, /* B */
&unknown_str_len, &sampass->unknown_str, /* B */
&munged_dial_len, &sampass->munged_dial, /* B */
&sampass->user_rid, /* d */
&sampass->group_rid, /* d */
&lm_pw_len, &sampass->lm_pw_ptr, /* B */
&nt_pw_len, &sampass->nt_pw_ptr, /* B */
&sampass->acct_ctrl, /* w */
&remove_me, /* remove on the next TDB_FORMAT upgarde */ /* d */
&sampass->logon_divs, /* w */
&sampass->hours_len, /* d */
&hourslen, &sampass->hours, /* B */
&sampass->bad_password_count, /* w */
&sampass->logon_count, /* w */
&sampass->unknown_6); /* d */
if (len == (uint32_t) -1) {
return False;
}
if (lm_pw_len != 16) {
sampass->lm_pw_ptr = NULL;
}
if (nt_pw_len != 16) {
sampass->nt_pw_ptr = NULL;
}
return True;
}
static BOOL init_sam_from_buffer_v1(TDB_CONTEXT *tdb, struct samba3_samaccount *sampass, TDB_DATA buf)
{
uint32_t username_len, domain_len, nt_username_len,
dir_drive_len, unknown_str_len, munged_dial_len,
fullname_len, homedir_len, logon_script_len,
profile_path_len, acct_desc_len, workstations_len;
uint32_t remove_me;
uint32_t len = 0;
uint32_t lm_pw_len, nt_pw_len, hourslen;
if(sampass == NULL || buf.dptr == NULL) {
DEBUG(0, ("init_sam_from_buffer_v1: NULL parameters found!\n"));
return False;
}
/* unpack the buffer into variables */
len = tdb_unpack (tdb, (char *)buf.dptr, buf.dsize, TDB_FORMAT_STRING_V1,
&sampass->logon_time, /* d */
&sampass->logoff_time, /* d */
&sampass->kickoff_time, /* d */
/* Change from V0 is addition of bad_password_time field. */
&sampass->bad_password_time, /* d */
&sampass->pass_last_set_time, /* d */
&sampass->pass_can_change_time, /* d */
&sampass->pass_must_change_time, /* d */
&username_len, &sampass->username, /* B */
&domain_len, &sampass->domain, /* B */
&nt_username_len, &sampass->nt_username, /* B */
&fullname_len, &sampass->fullname, /* B */
&homedir_len, &sampass->homedir, /* B */
&dir_drive_len, &sampass->dir_drive, /* B */
&logon_script_len, &sampass->logon_script, /* B */
&profile_path_len, &sampass->profile_path, /* B */
&acct_desc_len, &sampass->acct_desc, /* B */
&workstations_len, &sampass->workstations, /* B */
&unknown_str_len, &sampass->unknown_str, /* B */
&munged_dial_len, &sampass->munged_dial, /* B */
&sampass->user_rid, /* d */
&sampass->group_rid, /* d */
&lm_pw_len, &sampass->lm_pw_ptr, /* B */
&nt_pw_len, &sampass->nt_pw_ptr, /* B */
&sampass->acct_ctrl, /* w */
&remove_me, /* d */
&sampass->logon_divs, /* w */
&sampass->hours_len, /* d */
&hourslen, &sampass->hours, /* B */
&sampass->bad_password_count, /* w */
&sampass->logon_count, /* w */
&sampass->unknown_6); /* d */
if (len == (uint32_t) -1) {
return False;
}
if (sampass->lm_pw_ptr && lm_pw_len != 16) {
sampass->lm_pw_ptr = NULL;
}
if (sampass->nt_pw_ptr && nt_pw_len != 16) {
sampass->nt_pw_ptr = NULL;
}
return True;
}
static BOOL init_sam_from_buffer_v2(TDB_CONTEXT *tdb, struct samba3_samaccount *sampass, TDB_DATA buf)
{
uint32_t username_len, domain_len, nt_username_len,
dir_drive_len, unknown_str_len, munged_dial_len,
fullname_len, homedir_len, logon_script_len,
profile_path_len, acct_desc_len, workstations_len;
uint32_t len = 0;
uint32_t lm_pw_len, nt_pw_len, nt_pw_hist_len, hourslen;
if(sampass == NULL || buf.dptr == NULL) {
DEBUG(0, ("init_sam_from_buffer_v2: NULL parameters found!\n"));
return False;
}
/* unpack the buffer into variables */
len = tdb_unpack (tdb, (char *)buf.dptr, buf.dsize, TDB_FORMAT_STRING_V2,
&sampass->logon_time, /* d */
&sampass->logoff_time, /* d */
&sampass->kickoff_time, /* d */
&sampass->bad_password_time, /* d */
&sampass->pass_last_set_time, /* d */
&sampass->pass_can_change_time, /* d */
&sampass->pass_must_change_time, /* d */
&username_len, &sampass->username, /* B */
&domain_len, &sampass->domain, /* B */
&nt_username_len, &sampass->nt_username, /* B */
&fullname_len, &sampass->fullname, /* B */
&homedir_len, &sampass->homedir, /* B */
&dir_drive_len, &sampass->dir_drive, /* B */
&logon_script_len, &sampass->logon_script, /* B */
&profile_path_len, &sampass->profile_path, /* B */
&acct_desc_len, &sampass->acct_desc, /* B */
&workstations_len, &sampass->workstations, /* B */
&unknown_str_len, &sampass->unknown_str, /* B */
&munged_dial_len, &sampass->munged_dial, /* B */
&sampass->user_rid, /* d */
&sampass->group_rid, /* d */
&lm_pw_len, &sampass->lm_pw_ptr, /* B */
&nt_pw_len, &sampass->nt_pw_ptr, /* B */
/* Change from V1 is addition of password history field. */
&nt_pw_hist_len, &sampass->nt_pw_hist_ptr, /* B */
&sampass->acct_ctrl, /* w */
/* Also "remove_me" field was removed. */
&sampass->logon_divs, /* w */
&sampass->hours_len, /* d */
&hourslen, &sampass->hours, /* B */
&sampass->bad_password_count, /* w */
&sampass->logon_count, /* w */
&sampass->unknown_6); /* d */
if (len == (uint32_t) -1) {
return False;
}
if (sampass->lm_pw_ptr && lm_pw_len != 16) {
sampass->lm_pw_ptr = NULL;
}
if (sampass->nt_pw_ptr && nt_pw_len != 16) {
sampass->nt_pw_ptr = NULL;
}
return True;
}
NTSTATUS samba3_read_tdbsam(const char *filename, TALLOC_CTX *ctx, struct samba3_samaccount **accounts, uint32_t *count)
{
int32_t version;
TDB_CONTEXT *tdb = tdbsam_open(filename, &version);
TDB_DATA key, val;
if (tdb == NULL)
return NT_STATUS_UNSUCCESSFUL;
if (version < 0 || version > 2) {
return NT_STATUS_NOT_SUPPORTED;
}
*accounts = NULL;
*count = 0;
for (key = tdb_firstkey(tdb); key.dptr; key = tdb_nextkey(tdb, key))
{
if (strncmp(key.dptr, "RID/", 4) == 0) continue;
val = tdb_fetch(tdb, key);
*accounts = talloc_realloc(ctx, *accounts, struct samba3_samaccount, (*count)+1);
switch (version)
{
case 0: init_sam_from_buffer_v0(tdb, &(*accounts)[*count], val); break;
case 1: init_sam_from_buffer_v1(tdb, &(*accounts)[*count], val); break;
case 2: init_sam_from_buffer_v2(tdb, &(*accounts)[*count], val); break;
}
(*count)++;
}
tdb_close(tdb);
return NT_STATUS_OK;
}
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