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samba-mirror/source3/passdb/pdb_tdb.c
Andrew Bartlett 3d8c50c874 Thanks to volker, merge passdb changes from HEAD:
- pdb_guest (including change defaults)
 - 'default' passdb actions (instead of 'not implemented' stubs in each module)

 - net_rpc_samsync no longer assumes pdb_unix

Andrew Bartlett
(This used to be commit 4bec53c8c8)
2003-03-22 09:03:46 +00:00

1008 lines
28 KiB
C

/*
* Unix SMB/CIFS implementation.
* SMB parameters and setup
* Copyright (C) Andrew Tridgell 1992-1998
* Copyright (C) Simo Sorce 2000-2002
* Copyright (C) Gerald Carter 2000
* Copyright (C) Jeremy Allison 2001
* Copyright (C) Andrew Bartlett 2002
*
* 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"
#if 0 /* when made a module use this */
static int tdbsam_debug_level = DBGC_ALL;
#undef DBGC_CLASS
#define DBGC_CLASS tdbsam_debug_level
#else
#undef DBGC_CLASS
#define DBGC_CLASS DBGC_PASSDB
#endif
#ifdef WITH_TDB_SAM
#define PDB_VERSION "20010830"
#define PASSDB_FILE_NAME "passdb.tdb"
#define TDB_FORMAT_STRING "ddddddBBBBBBBBBBBBddBBwdwdBdd"
#define USERPREFIX "USER_"
#define RIDPREFIX "RID_"
struct tdbsam_privates {
TDB_CONTEXT *passwd_tdb;
TDB_DATA key;
/* retrive-once info */
const char *tdbsam_location;
BOOL permit_non_unix_accounts;
BOOL algorithmic_rids;
uint32 low_nua_rid;
uint32 high_nua_rid;
};
/**********************************************************************
Intialize a SAM_ACCOUNT struct from a BYTE buffer of size len
*********************************************************************/
static BOOL init_sam_from_buffer (struct tdbsam_privates *tdb_state,
SAM_ACCOUNT *sampass, uint8 *buf, uint32 buflen)
{
/* times are stored as 32bit integer
take care on system with 64bit wide time_t
--SSS */
uint32 logon_time,
logoff_time,
kickoff_time,
pass_last_set_time,
pass_can_change_time,
pass_must_change_time;
char *username;
char *domain;
char *nt_username;
char *dir_drive;
char *unknown_str;
char *munged_dial;
char *fullname;
char *homedir;
char *logon_script;
char *profile_path;
char *acct_desc;
char *workstations;
uint32 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 user_rid, group_rid, unknown_3, hours_len, unknown_5, unknown_6;
uint16 acct_ctrl, logon_divs;
uint8 *hours;
static uint8 *lm_pw_ptr, *nt_pw_ptr;
uint32 len = 0;
uint32 lm_pw_len, nt_pw_len, hourslen;
BOOL ret = True;
struct passwd *pw;
uid_t uid = -1;
gid_t gid = -1; /* This is what standard sub advanced expects if no gid is known */
if(sampass == NULL || buf == NULL) {
DEBUG(0, ("init_sam_from_buffer: NULL parameters found!\n"));
return False;
}
/* unpack the buffer into variables */
len = tdb_unpack (buf, buflen, TDB_FORMAT_STRING,
&logon_time,
&logoff_time,
&kickoff_time,
&pass_last_set_time,
&pass_can_change_time,
&pass_must_change_time,
&username_len, &username,
&domain_len, &domain,
&nt_username_len, &nt_username,
&fullname_len, &fullname,
&homedir_len, &homedir,
&dir_drive_len, &dir_drive,
&logon_script_len, &logon_script,
&profile_path_len, &profile_path,
&acct_desc_len, &acct_desc,
&workstations_len, &workstations,
&unknown_str_len, &unknown_str,
&munged_dial_len, &munged_dial,
&user_rid,
&group_rid,
&lm_pw_len, &lm_pw_ptr,
&nt_pw_len, &nt_pw_ptr,
&acct_ctrl,
&unknown_3,
&logon_divs,
&hours_len,
&hourslen, &hours,
&unknown_5,
&unknown_6);
if (len == -1) {
ret = False;
goto done;
}
/* validate the account and fill in UNIX uid and gid. Standard
* getpwnam() is used instead of Get_Pwnam() as we do not need
* to try case permutations
*/
if (!username || !(pw = getpwnam_alloc(username))) {
if (!(tdb_state->permit_non_unix_accounts)) {
DEBUG(0,("tdbsam: getpwnam_alloc(%s) return NULL. User does not exist!\n", username));
ret = False;
goto done;
}
}
if (pw) {
uid = pw->pw_uid;
gid = pw->pw_gid;
pdb_set_unix_homedir(sampass, pw->pw_dir, PDB_SET);
passwd_free(&pw);
pdb_set_uid(sampass, uid, PDB_SET);
pdb_set_gid(sampass, gid, PDB_SET);
}
pdb_set_logon_time(sampass, logon_time, PDB_SET);
pdb_set_logoff_time(sampass, logoff_time, PDB_SET);
pdb_set_kickoff_time(sampass, kickoff_time, PDB_SET);
pdb_set_pass_can_change_time(sampass, pass_can_change_time, PDB_SET);
pdb_set_pass_must_change_time(sampass, pass_must_change_time, PDB_SET);
pdb_set_pass_last_set_time(sampass, pass_last_set_time, PDB_SET);
pdb_set_username (sampass, username, PDB_SET);
pdb_set_domain (sampass, domain, PDB_SET);
pdb_set_nt_username (sampass, nt_username, PDB_SET);
pdb_set_fullname (sampass, fullname, PDB_SET);
if (homedir) {
pdb_set_homedir(sampass, homedir, PDB_SET);
}
else {
pdb_set_homedir(sampass,
talloc_sub_specified(sampass->mem_ctx,
lp_logon_home(),
username, domain,
uid, gid),
PDB_DEFAULT);
}
if (dir_drive)
pdb_set_dir_drive(sampass, dir_drive, PDB_SET);
else {
pdb_set_dir_drive(sampass,
talloc_sub_specified(sampass->mem_ctx,
lp_logon_drive(),
username, domain,
uid, gid),
PDB_DEFAULT);
}
if (logon_script)
pdb_set_logon_script(sampass, logon_script, PDB_SET);
else {
pdb_set_logon_script(sampass,
talloc_sub_specified(sampass->mem_ctx,
lp_logon_script(),
username, domain,
uid, gid),
PDB_DEFAULT);
}
if (profile_path) {
pdb_set_profile_path(sampass, profile_path, PDB_SET);
} else {
pdb_set_profile_path(sampass,
talloc_sub_specified(sampass->mem_ctx,
lp_logon_path(),
username, domain,
uid, gid),
PDB_DEFAULT);
}
pdb_set_acct_desc (sampass, acct_desc, PDB_SET);
pdb_set_workstations (sampass, workstations, PDB_SET);
pdb_set_munged_dial (sampass, munged_dial, PDB_SET);
if (lm_pw_ptr && lm_pw_len == LM_HASH_LEN) {
if (!pdb_set_lanman_passwd(sampass, lm_pw_ptr, PDB_SET)) {
ret = False;
goto done;
}
}
if (nt_pw_ptr && nt_pw_len == NT_HASH_LEN) {
if (!pdb_set_nt_passwd(sampass, nt_pw_ptr, PDB_SET)) {
ret = False;
goto done;
}
}
pdb_set_user_sid_from_rid(sampass, user_rid, PDB_SET);
pdb_set_group_sid_from_rid(sampass, group_rid, PDB_SET);
pdb_set_unknown_3(sampass, unknown_3, PDB_SET);
pdb_set_hours_len(sampass, hours_len, PDB_SET);
pdb_set_unknown_5(sampass, unknown_5, PDB_SET);
pdb_set_unknown_6(sampass, unknown_6, PDB_SET);
pdb_set_acct_ctrl(sampass, acct_ctrl, PDB_SET);
pdb_set_logon_divs(sampass, logon_divs, PDB_SET);
pdb_set_hours(sampass, hours, PDB_SET);
done:
SAFE_FREE(username);
SAFE_FREE(domain);
SAFE_FREE(nt_username);
SAFE_FREE(fullname);
SAFE_FREE(homedir);
SAFE_FREE(dir_drive);
SAFE_FREE(logon_script);
SAFE_FREE(profile_path);
SAFE_FREE(acct_desc);
SAFE_FREE(workstations);
SAFE_FREE(munged_dial);
return ret;
}
/**********************************************************************
Intialize a BYTE buffer from a SAM_ACCOUNT struct
*********************************************************************/
static uint32 init_buffer_from_sam (struct tdbsam_privates *tdb_state,
uint8 **buf, const SAM_ACCOUNT *sampass)
{
size_t len, buflen;
/* times are stored as 32bit integer
take care on system with 64bit wide time_t
--SSS */
uint32 logon_time,
logoff_time,
kickoff_time,
pass_last_set_time,
pass_can_change_time,
pass_must_change_time;
uint32 user_rid, group_rid;
const char *username;
const char *domain;
const char *nt_username;
const char *dir_drive;
const char *unknown_str;
const char *munged_dial;
const char *fullname;
const char *homedir;
const char *logon_script;
const char *profile_path;
const char *acct_desc;
const char *workstations;
uint32 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;
const uint8 *lm_pw;
const uint8 *nt_pw;
uint32 lm_pw_len = 16;
uint32 nt_pw_len = 16;
/* do we have a valid SAM_ACCOUNT pointer? */
if (sampass == NULL) {
DEBUG(0, ("init_buffer_from_sam: SAM_ACCOUNT is NULL!\n"));
return -1;
}
*buf = NULL;
buflen = 0;
logon_time = (uint32)pdb_get_logon_time(sampass);
logoff_time = (uint32)pdb_get_logoff_time(sampass);
kickoff_time = (uint32)pdb_get_kickoff_time(sampass);
pass_can_change_time = (uint32)pdb_get_pass_can_change_time(sampass);
pass_must_change_time = (uint32)pdb_get_pass_must_change_time(sampass);
pass_last_set_time = (uint32)pdb_get_pass_last_set_time(sampass);
user_rid = pdb_get_user_rid(sampass);
group_rid = pdb_get_group_rid(sampass);
username = pdb_get_username(sampass);
if (username) username_len = strlen(username) +1;
else username_len = 0;
domain = pdb_get_domain(sampass);
if (domain) domain_len = strlen(domain) +1;
else domain_len = 0;
nt_username = pdb_get_nt_username(sampass);
if (nt_username) nt_username_len = strlen(nt_username) +1;
else nt_username_len = 0;
fullname = pdb_get_fullname(sampass);
if (fullname) fullname_len = strlen(fullname) +1;
else fullname_len = 0;
/*
* Only updates fields which have been set (not defaults from smb.conf)
*/
if (!IS_SAM_DEFAULT(sampass, PDB_DRIVE))
dir_drive = pdb_get_dir_drive(sampass);
else dir_drive = NULL;
if (dir_drive) dir_drive_len = strlen(dir_drive) +1;
else dir_drive_len = 0;
if (!IS_SAM_DEFAULT(sampass, PDB_SMBHOME)) homedir = pdb_get_homedir(sampass);
else homedir = NULL;
if (homedir) homedir_len = strlen(homedir) +1;
else homedir_len = 0;
if (!IS_SAM_DEFAULT(sampass, PDB_LOGONSCRIPT)) logon_script = pdb_get_logon_script(sampass);
else logon_script = NULL;
if (logon_script) logon_script_len = strlen(logon_script) +1;
else logon_script_len = 0;
if (!IS_SAM_DEFAULT(sampass, PDB_PROFILE)) profile_path = pdb_get_profile_path(sampass);
else profile_path = NULL;
if (profile_path) profile_path_len = strlen(profile_path) +1;
else profile_path_len = 0;
lm_pw = pdb_get_lanman_passwd(sampass);
if (!lm_pw) lm_pw_len = 0;
nt_pw = pdb_get_nt_passwd(sampass);
if (!nt_pw) nt_pw_len = 0;
acct_desc = pdb_get_acct_desc(sampass);
if (acct_desc) acct_desc_len = strlen(acct_desc) +1;
else acct_desc_len = 0;
workstations = pdb_get_workstations(sampass);
if (workstations) workstations_len = strlen(workstations) +1;
else workstations_len = 0;
unknown_str = NULL;
unknown_str_len = 0;
munged_dial = pdb_get_munged_dial(sampass);
if (munged_dial) munged_dial_len = strlen(munged_dial) +1;
else munged_dial_len = 0;
/* one time to get the size needed */
len = tdb_pack(NULL, 0, TDB_FORMAT_STRING,
logon_time,
logoff_time,
kickoff_time,
pass_last_set_time,
pass_can_change_time,
pass_must_change_time,
username_len, username,
domain_len, domain,
nt_username_len, nt_username,
fullname_len, fullname,
homedir_len, homedir,
dir_drive_len, dir_drive,
logon_script_len, logon_script,
profile_path_len, profile_path,
acct_desc_len, acct_desc,
workstations_len, workstations,
unknown_str_len, unknown_str,
munged_dial_len, munged_dial,
user_rid,
group_rid,
lm_pw_len, lm_pw,
nt_pw_len, nt_pw,
pdb_get_acct_ctrl(sampass),
pdb_get_unknown_3(sampass),
pdb_get_logon_divs(sampass),
pdb_get_hours_len(sampass),
MAX_HOURS_LEN, pdb_get_hours(sampass),
pdb_get_unknown_5(sampass),
pdb_get_unknown_6(sampass));
/* malloc the space needed */
if ( (*buf=(uint8*)malloc(len)) == NULL) {
DEBUG(0,("init_buffer_from_sam: Unable to malloc() memory for buffer!\n"));
return (-1);
}
/* now for the real call to tdb_pack() */
buflen = tdb_pack(*buf, len, TDB_FORMAT_STRING,
logon_time,
logoff_time,
kickoff_time,
pass_last_set_time,
pass_can_change_time,
pass_must_change_time,
username_len, username,
domain_len, domain,
nt_username_len, nt_username,
fullname_len, fullname,
homedir_len, homedir,
dir_drive_len, dir_drive,
logon_script_len, logon_script,
profile_path_len, profile_path,
acct_desc_len, acct_desc,
workstations_len, workstations,
unknown_str_len, unknown_str,
munged_dial_len, munged_dial,
user_rid,
group_rid,
lm_pw_len, lm_pw,
nt_pw_len, nt_pw,
pdb_get_acct_ctrl(sampass),
pdb_get_unknown_3(sampass),
pdb_get_logon_divs(sampass),
pdb_get_hours_len(sampass),
MAX_HOURS_LEN, pdb_get_hours(sampass),
pdb_get_unknown_5(sampass),
pdb_get_unknown_6(sampass));
/* check to make sure we got it correct */
if (buflen != len) {
DEBUG(0, ("init_buffer_from_sam: somthing odd is going on here: bufflen (%d) != len (%d) in tdb_pack operations!\n",
buflen, len));
/* error */
SAFE_FREE (*buf);
return (-1);
}
return (buflen);
}
/***************************************************************
Open the TDB passwd database for SAM account enumeration.
****************************************************************/
static NTSTATUS tdbsam_setsampwent(struct pdb_methods *my_methods, BOOL update)
{
struct tdbsam_privates *tdb_state = (struct tdbsam_privates *)my_methods->private_data;
/* Open tdb passwd */
if (!(tdb_state->passwd_tdb = tdb_open_log(tdb_state->tdbsam_location, 0, TDB_DEFAULT, update?(O_RDWR|O_CREAT):O_RDONLY, 0600)))
{
DEBUG(0, ("Unable to open/create TDB passwd\n"));
return NT_STATUS_UNSUCCESSFUL;
}
tdb_state->key = tdb_firstkey(tdb_state->passwd_tdb);
return NT_STATUS_OK;
}
static void close_tdb(struct tdbsam_privates *tdb_state)
{
if (tdb_state->passwd_tdb) {
tdb_close(tdb_state->passwd_tdb);
tdb_state->passwd_tdb = NULL;
}
}
/***************************************************************
End enumeration of the TDB passwd list.
****************************************************************/
static void tdbsam_endsampwent(struct pdb_methods *my_methods)
{
struct tdbsam_privates *tdb_state = (struct tdbsam_privates *)my_methods->private_data;
close_tdb(tdb_state);
DEBUG(7, ("endtdbpwent: closed sam database.\n"));
}
/*****************************************************************
Get one SAM_ACCOUNT from the TDB (next in line)
*****************************************************************/
static NTSTATUS tdbsam_getsampwent(struct pdb_methods *my_methods, SAM_ACCOUNT *user)
{
NTSTATUS nt_status = NT_STATUS_UNSUCCESSFUL;
struct tdbsam_privates *tdb_state = (struct tdbsam_privates *)my_methods->private_data;
TDB_DATA data;
const char *prefix = USERPREFIX;
int prefixlen = strlen (prefix);
if (user==NULL) {
DEBUG(0,("pdb_get_sampwent: SAM_ACCOUNT is NULL.\n"));
return nt_status;
}
/* skip all non-USER entries (eg. RIDs) */
while ((tdb_state->key.dsize != 0) && (strncmp(tdb_state->key.dptr, prefix, prefixlen)))
/* increment to next in line */
tdb_state->key = tdb_nextkey(tdb_state->passwd_tdb, tdb_state->key);
/* do we have an valid iteration pointer? */
if(tdb_state->passwd_tdb == NULL) {
DEBUG(0,("pdb_get_sampwent: Bad TDB Context pointer.\n"));
return nt_status;
}
data = tdb_fetch(tdb_state->passwd_tdb, tdb_state->key);
if (!data.dptr) {
DEBUG(5,("pdb_getsampwent: database entry not found.\n"));
return nt_status;
}
/* unpack the buffer */
if (!init_sam_from_buffer(tdb_state, user, data.dptr, data.dsize)) {
DEBUG(0,("pdb_getsampwent: Bad SAM_ACCOUNT entry returned from TDB!\n"));
SAFE_FREE(data.dptr);
return nt_status;
}
SAFE_FREE(data.dptr);
/* increment to next in line */
tdb_state->key = tdb_nextkey(tdb_state->passwd_tdb, tdb_state->key);
return NT_STATUS_OK;
}
/******************************************************************
Lookup a name in the SAM TDB
******************************************************************/
static NTSTATUS tdbsam_getsampwnam (struct pdb_methods *my_methods, SAM_ACCOUNT *user, const char *sname)
{
NTSTATUS nt_status = NT_STATUS_UNSUCCESSFUL;
struct tdbsam_privates *tdb_state = (struct tdbsam_privates *)my_methods->private_data;
TDB_CONTEXT *pwd_tdb;
TDB_DATA data, key;
fstring keystr;
fstring name;
if (user==NULL) {
DEBUG(0,("pdb_getsampwnam: SAM_ACCOUNT is NULL.\n"));
return nt_status;
}
/* Data is stored in all lower-case */
unix_strlower(sname, -1, name, sizeof(name));
/* set search key */
slprintf(keystr, sizeof(keystr)-1, "%s%s", USERPREFIX, name);
key.dptr = keystr;
key.dsize = strlen(keystr) + 1;
/* open the accounts TDB */
if (!(pwd_tdb = tdb_open_log(tdb_state->tdbsam_location, 0, TDB_DEFAULT, O_RDONLY, 0600))) {
DEBUG(0, ("pdb_getsampwnam: Unable to open TDB passwd (%s)!\n", tdb_state->tdbsam_location));
return nt_status;
}
/* get the record */
data = tdb_fetch(pwd_tdb, key);
if (!data.dptr) {
DEBUG(5,("pdb_getsampwnam (TDB): error fetching database.\n"));
DEBUGADD(5, (" Error: %s\n", tdb_errorstr(pwd_tdb)));
DEBUGADD(5, (" Key: %s\n", keystr));
tdb_close(pwd_tdb);
return nt_status;
}
/* unpack the buffer */
if (!init_sam_from_buffer(tdb_state, user, data.dptr, data.dsize)) {
DEBUG(0,("pdb_getsampwent: Bad SAM_ACCOUNT entry returned from TDB!\n"));
SAFE_FREE(data.dptr);
tdb_close(pwd_tdb);
return nt_status;
}
SAFE_FREE(data.dptr);
/* no further use for database, close it now */
tdb_close(pwd_tdb);
return NT_STATUS_OK;
}
/***************************************************************************
Search by rid
**************************************************************************/
static NTSTATUS tdbsam_getsampwrid (struct pdb_methods *my_methods, SAM_ACCOUNT *user, uint32 rid)
{
NTSTATUS nt_status = NT_STATUS_UNSUCCESSFUL;
struct tdbsam_privates *tdb_state = (struct tdbsam_privates *)my_methods->private_data;
TDB_CONTEXT *pwd_tdb;
TDB_DATA data, key;
fstring keystr;
fstring name;
if (user==NULL) {
DEBUG(0,("pdb_getsampwrid: SAM_ACCOUNT is NULL.\n"));
return nt_status;
}
/* set search key */
slprintf(keystr, sizeof(keystr)-1, "%s%.8x", RIDPREFIX, rid);
key.dptr = keystr;
key.dsize = strlen (keystr) + 1;
/* open the accounts TDB */
if (!(pwd_tdb = tdb_open_log(tdb_state->tdbsam_location, 0, TDB_DEFAULT, O_RDONLY, 0600))) {
DEBUG(0, ("pdb_getsampwrid: Unable to open TDB rid database!\n"));
return nt_status;
}
/* get the record */
data = tdb_fetch (pwd_tdb, key);
if (!data.dptr) {
DEBUG(5,("pdb_getsampwrid (TDB): error looking up RID %d by key %s.\n", rid, keystr));
DEBUGADD(5, (" Error: %s\n", tdb_errorstr(pwd_tdb)));
tdb_close (pwd_tdb);
return nt_status;
}
fstrcpy (name, data.dptr);
SAFE_FREE(data.dptr);
tdb_close (pwd_tdb);
return tdbsam_getsampwnam (my_methods, user, name);
}
static NTSTATUS tdbsam_getsampwsid(struct pdb_methods *my_methods, SAM_ACCOUNT * user, const DOM_SID *sid)
{
uint32 rid;
if (!sid_peek_check_rid(get_global_sam_sid(), sid, &rid))
return NT_STATUS_UNSUCCESSFUL;
return tdbsam_getsampwrid(my_methods, user, rid);
}
/***************************************************************************
Delete a SAM_ACCOUNT
****************************************************************************/
static NTSTATUS tdbsam_delete_sam_account(struct pdb_methods *my_methods, SAM_ACCOUNT *sam_pass)
{
NTSTATUS nt_status = NT_STATUS_UNSUCCESSFUL;
struct tdbsam_privates *tdb_state = (struct tdbsam_privates *)my_methods->private_data;
TDB_CONTEXT *pwd_tdb;
TDB_DATA key;
fstring keystr;
uint32 rid;
fstring name;
unix_strlower(pdb_get_username(sam_pass), -1, name, sizeof(name));
/* open the TDB */
if (!(pwd_tdb = tdb_open_log(tdb_state->tdbsam_location, 0, TDB_DEFAULT, O_RDWR, 0600))) {
DEBUG(0, ("Unable to open TDB passwd!"));
return nt_status;
}
/* set the search key */
slprintf(keystr, sizeof(keystr)-1, "%s%s", USERPREFIX, name);
key.dptr = keystr;
key.dsize = strlen (keystr) + 1;
rid = pdb_get_user_rid(sam_pass);
/* it's outaa here! 8^) */
if (tdb_delete(pwd_tdb, key) != TDB_SUCCESS) {
DEBUG(5, ("Error deleting entry from tdb passwd database!\n"));
DEBUGADD(5, (" Error: %s\n", tdb_errorstr(pwd_tdb)));
tdb_close(pwd_tdb);
return nt_status;
}
/* delete also the RID key */
/* set the search key */
slprintf(keystr, sizeof(keystr)-1, "%s%.8x", RIDPREFIX, rid);
key.dptr = keystr;
key.dsize = strlen (keystr) + 1;
/* it's outaa here! 8^) */
if (tdb_delete(pwd_tdb, key) != TDB_SUCCESS) {
DEBUG(5, ("Error deleting entry from tdb rid database!\n"));
DEBUGADD(5, (" Error: %s\n", tdb_errorstr(pwd_tdb)));
tdb_close(pwd_tdb);
return nt_status;
}
tdb_close(pwd_tdb);
return NT_STATUS_OK;
}
/***************************************************************************
Update the TDB SAM
****************************************************************************/
static BOOL tdb_update_sam(struct pdb_methods *my_methods, SAM_ACCOUNT* newpwd, int flag)
{
struct tdbsam_privates *tdb_state = (struct tdbsam_privates *)my_methods->private_data;
TDB_CONTEXT *pwd_tdb = NULL;
TDB_DATA key, data;
uint8 *buf = NULL;
fstring keystr;
fstring name;
BOOL ret = True;
uint32 user_rid;
BOOL tdb_ret;
/* invalidate the existing TDB iterator if it is open */
if (tdb_state->passwd_tdb) {
tdb_close(tdb_state->passwd_tdb);
tdb_state->passwd_tdb = NULL;
}
/* open the account TDB passwd*/
pwd_tdb = tdb_open_log(tdb_state->tdbsam_location, 0, TDB_DEFAULT, O_RDWR | O_CREAT, 0600);
if (!pwd_tdb)
{
DEBUG(0, ("tdb_update_sam: Unable to open TDB passwd (%s)!\n", tdb_state->tdbsam_location));
return False;
}
/* if flag == TDB_INSERT then make up a new RID else throw an error. */
if (!(user_rid = pdb_get_user_rid(newpwd))) {
if (flag & TDB_INSERT) {
if (IS_SAM_UNIX_USER(newpwd)) {
if (tdb_state->algorithmic_rids) {
user_rid = fallback_pdb_uid_to_user_rid(pdb_get_uid(newpwd));
} else {
user_rid = BASE_RID;
tdb_ret = tdb_change_uint32_atomic(pwd_tdb, "RID_COUNTER", &user_rid, RID_MULTIPLIER);
if (!tdb_ret) {
ret = False;
goto done;
}
}
pdb_set_user_sid_from_rid(newpwd, user_rid, PDB_CHANGED);
} else {
user_rid = tdb_state->low_nua_rid;
tdb_ret = tdb_change_uint32_atomic(pwd_tdb, "NUA_RID_COUNTER", &user_rid, RID_MULTIPLIER);
if (!tdb_ret) {
ret = False;
goto done;
}
if (user_rid > tdb_state->high_nua_rid) {
DEBUG(0, ("tdbsam: no NUA rids available, cannot add user %s!\n", pdb_get_username(newpwd)));
ret = False;
goto done;
}
pdb_set_user_sid_from_rid(newpwd, user_rid, PDB_CHANGED);
}
} else {
DEBUG (0,("tdb_update_sam: Failing to store a SAM_ACCOUNT for [%s] without a RID\n",pdb_get_username(newpwd)));
ret = False;
goto done;
}
}
if (!pdb_get_group_rid(newpwd)) {
if (flag & TDB_INSERT) {
if (!tdb_state->permit_non_unix_accounts) {
DEBUG (0,("tdb_update_sam: Failing to store a SAM_ACCOUNT for [%s] without a primary group RID\n",pdb_get_username(newpwd)));
ret = False;
goto done;
} else {
/* This seems like a good default choice for non-unix users */
pdb_set_group_sid_from_rid(newpwd, DOMAIN_GROUP_RID_USERS, PDB_DEFAULT);
}
} else {
DEBUG (0,("tdb_update_sam: Failing to store a SAM_ACCOUNT for [%s] without a primary group RID\n",pdb_get_username(newpwd)));
ret = False;
goto done;
}
}
/* copy the SAM_ACCOUNT struct into a BYTE buffer for storage */
if ((data.dsize=init_buffer_from_sam (tdb_state, &buf, newpwd)) == -1) {
DEBUG(0,("tdb_update_sam: ERROR - Unable to copy SAM_ACCOUNT info BYTE buffer!\n"));
ret = False;
goto done;
}
data.dptr = buf;
unix_strlower(pdb_get_username(newpwd), -1, name, sizeof(name));
DEBUG(5, ("Storing %saccount %s with RID %d\n", flag == TDB_INSERT ? "(new) " : "", name, user_rid));
/* setup the USER index key */
slprintf(keystr, sizeof(keystr)-1, "%s%s", USERPREFIX, name);
key.dptr = keystr;
key.dsize = strlen (keystr) + 1;
/* add the account */
if (tdb_store(pwd_tdb, key, data, flag) != TDB_SUCCESS) {
DEBUG(0, ("Unable to modify passwd TDB!"));
DEBUGADD(0, (" Error: %s", tdb_errorstr(pwd_tdb)));
DEBUGADD(0, (" occured while storing the main record (%s)\n", keystr));
ret = False;
goto done;
}
/* setup RID data */
data.dsize = sizeof(fstring);
data.dptr = name;
/* setup the RID index key */
slprintf(keystr, sizeof(keystr)-1, "%s%.8x", RIDPREFIX, user_rid);
key.dptr = keystr;
key.dsize = strlen (keystr) + 1;
/* add the reference */
if (tdb_store(pwd_tdb, key, data, flag) != TDB_SUCCESS) {
DEBUG(0, ("Unable to modify TDB passwd !"));
DEBUGADD(0, (" Error: %s\n", tdb_errorstr(pwd_tdb)));
DEBUGADD(0, (" occured while storing the RID index (%s)\n", keystr));
ret = False;
goto done;
}
done:
/* cleanup */
tdb_close (pwd_tdb);
SAFE_FREE(buf);
return (ret);
}
/***************************************************************************
Modifies an existing SAM_ACCOUNT
****************************************************************************/
static NTSTATUS tdbsam_update_sam_account (struct pdb_methods *my_methods, SAM_ACCOUNT *newpwd)
{
if (tdb_update_sam(my_methods, newpwd, TDB_MODIFY))
return NT_STATUS_OK;
else
return NT_STATUS_UNSUCCESSFUL;
}
/***************************************************************************
Adds an existing SAM_ACCOUNT
****************************************************************************/
static NTSTATUS tdbsam_add_sam_account (struct pdb_methods *my_methods, SAM_ACCOUNT *newpwd)
{
if (tdb_update_sam(my_methods, newpwd, TDB_INSERT))
return NT_STATUS_OK;
else
return NT_STATUS_UNSUCCESSFUL;
}
static void free_private_data(void **vp)
{
struct tdbsam_privates **tdb_state = (struct tdbsam_privates **)vp;
close_tdb(*tdb_state);
*tdb_state = NULL;
/* No need to free any further, as it is talloc()ed */
}
NTSTATUS pdb_init_tdbsam(PDB_CONTEXT *pdb_context, PDB_METHODS **pdb_method, const char *location)
{
NTSTATUS nt_status;
struct tdbsam_privates *tdb_state;
#if 0 /* when made a module use this */
tdbsam_debug_level = debug_add_class("tdbsam");
if(tdbsam_debug_level == -1) {
tdbsam_debug_level = DBGC_ALL;
DEBUG(0, ("tdbsam: Couldn't register custom debugging class!\n"));
}
#endif
if (!NT_STATUS_IS_OK(nt_status = make_pdb_methods(pdb_context->mem_ctx, pdb_method))) {
return nt_status;
}
(*pdb_method)->name = "tdbsam";
(*pdb_method)->setsampwent = tdbsam_setsampwent;
(*pdb_method)->endsampwent = tdbsam_endsampwent;
(*pdb_method)->getsampwent = tdbsam_getsampwent;
(*pdb_method)->getsampwnam = tdbsam_getsampwnam;
(*pdb_method)->getsampwsid = tdbsam_getsampwsid;
(*pdb_method)->add_sam_account = tdbsam_add_sam_account;
(*pdb_method)->update_sam_account = tdbsam_update_sam_account;
(*pdb_method)->delete_sam_account = tdbsam_delete_sam_account;
tdb_state = talloc_zero(pdb_context->mem_ctx, sizeof(struct tdbsam_privates));
if (!tdb_state) {
DEBUG(0, ("talloc() failed for tdbsam private_data!\n"));
return NT_STATUS_NO_MEMORY;
}
if (location) {
tdb_state->tdbsam_location = talloc_strdup(pdb_context->mem_ctx, location);
} else {
pstring tdbfile;
get_private_directory(tdbfile);
pstrcat(tdbfile, "/");
pstrcat(tdbfile, PASSDB_FILE_NAME);
tdb_state->tdbsam_location = talloc_strdup(pdb_context->mem_ctx, tdbfile);
}
tdb_state->algorithmic_rids = True;
(*pdb_method)->private_data = tdb_state;
(*pdb_method)->free_private_data = free_private_data;
return NT_STATUS_OK;
}
NTSTATUS pdb_init_tdbsam_nua(PDB_CONTEXT *pdb_context, PDB_METHODS **pdb_method, const char *location)
{
NTSTATUS nt_status;
struct tdbsam_privates *tdb_state;
uint32 low_nua_uid, high_nua_uid;
if (!NT_STATUS_IS_OK(nt_status = pdb_init_tdbsam(pdb_context, pdb_method, location))) {
return nt_status;
}
(*pdb_method)->name = "tdbsam_nua";
tdb_state = (*pdb_method)->private_data;
tdb_state->permit_non_unix_accounts = True;
if (!lp_non_unix_account_range(&low_nua_uid, &high_nua_uid)) {
DEBUG(0, ("cannot use tdbsam_nua without 'non unix account range' in smb.conf!\n"));
return NT_STATUS_UNSUCCESSFUL;
}
tdb_state->low_nua_rid=fallback_pdb_uid_to_user_rid(low_nua_uid);
tdb_state->high_nua_rid=fallback_pdb_uid_to_user_rid(high_nua_uid);
return NT_STATUS_OK;
}
#else
NTSTATUS pdb_init_tdbsam(PDB_CONTEXT *pdb_context, PDB_METHODS **pdb_method, const char *location)
{
DEBUG(0, ("tdbsam not compiled in!\n"));
return NT_STATUS_UNSUCCESSFUL;
}
NTSTATUS pdb_init_tdbsam_nua(PDB_CONTEXT *pdb_context, PDB_METHODS **pdb_method, const char *location)
{
DEBUG(0, ("tdbsam_nua not compiled in!\n"));
return NT_STATUS_UNSUCCESSFUL;
}
#endif