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/*
Unix SMB/CIFS implementation.
tdb passdb backend format routines
Copyright (C) Simo Sorce 2000-2003
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 3 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, see <http://www.gnu.org/licenses/>.
*/
#include "includes.h"
#include "system/filesys.h"
#include "lib/tdb/include/tdb.h"
#include "lib/util/util_tdb.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"
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.hash, /* B */
&nt_pw_len, sampass->nt_pw.hash, /* 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;
}
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.hash, /* B */
&nt_pw_len, sampass->nt_pw.hash, /* 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;
}
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.hash, /* B */
&nt_pw_len, sampass->nt_pw.hash, /* 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;
}
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;
TDB_DATA key, val;
/* Try to open tdb passwd */
if (!(tdb = tdb_open(filename, 0, TDB_DEFAULT, O_RDONLY, 0600))) {
DEBUG(0, ("Unable to open TDB passwd file '%s'\n", filename));
return NT_STATUS_UNSUCCESSFUL;
}
/* Check the version */
version = tdb_fetch_int32(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(tdb);
return NT_STATUS_NOT_SUPPORTED;
}
*accounts = NULL;
*count = 0;
for (key = tdb_firstkey(tdb); key.dptr; key = tdb_nextkey(tdb, key))
{
bool ret;
if (strncmp((const char *)key.dptr, "USER_", 5) != 0)
continue;
val = tdb_fetch(tdb, key);
*accounts = talloc_realloc(ctx, *accounts, struct samba3_samaccount, (*count)+1);
switch (version)
{
case 0: ret = init_sam_from_buffer_v0(tdb, &(*accounts)[*count], val); break;
case 1: ret = init_sam_from_buffer_v1(tdb, &(*accounts)[*count], val); break;
case 2: ret = init_sam_from_buffer_v2(tdb, &(*accounts)[*count], val); break;
default: ret = false; break;
}
if (!ret) {
DEBUG(0, ("Unable to parse SAM account %s\n", key.dptr));
}
(*count)++;
}
tdb_close(tdb);
return NT_STATUS_OK;
}
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