--- /dev/null
+/*
+ * Unix SMB/CIFS implementation.
+ * SMB parameters and setup
+ * 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) Jim McDonough <jmcd@us.ibm.com> 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"
+
+#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
+
+#define TDBSAM_VERSION 2 /* Most recent TDBSAM version */
+#define TDBSAM_VERSION_STRING "INFO/version"
+#define PASSDB_FILE_NAME "passdb.tdb"
+#define USERPREFIX "USER_"
+#define RIDPREFIX "RID_"
+#define PRIVPREFIX "PRIV_"
+#define tdbsamver_t int32
+
+struct tdbsam_privates {
+ TDB_CONTEXT *passwd_tdb;
+
+ /* retrive-once info */
+ const char *tdbsam_location;
+};
+
+struct pwent_list {
+ struct pwent_list *prev, *next;
+ TDB_DATA key;
+};
+static struct pwent_list *tdbsam_pwent_list;
+
+
+/**
+ * Convert old TDBSAM to the latest version.
+ * @param pdb_tdb A pointer to the opened TDBSAM file which must be converted.
+ * This file must be opened with read/write access.
+ * @param from Current version of the TDBSAM file.
+ * @return True if the conversion has been successful, false otherwise.
+ **/
+
+static BOOL tdbsam_convert(TDB_CONTEXT *pdb_tdb, tdbsamver_t from)
+{
+ const char * vstring = TDBSAM_VERSION_STRING;
+ SAM_ACCOUNT *user = NULL;
+ const char *prefix = USERPREFIX;
+ TDB_DATA data, key, old_key;
+ uint8 *buf = NULL;
+ BOOL ret;
+
+ if (pdb_tdb == NULL) {
+ DEBUG(0,("tdbsam_convert: Bad TDB Context pointer.\n"));
+ return False;
+ }
+
+ /* handle a Samba upgrade */
+ tdb_lock_bystring(pdb_tdb, vstring, 0);
+
+ if (!NT_STATUS_IS_OK(pdb_init_sam(&user))) {
+ DEBUG(0,("tdbsam_convert: cannot initialized a SAM_ACCOUNT.\n"));
+ return False;
+ }
+
+ /* Enumerate all records and convert them */
+ key = tdb_firstkey(pdb_tdb);
+
+ while (key.dptr) {
+
+ /* skip all non-USER entries (eg. RIDs) */
+ while ((key.dsize != 0) && (strncmp(key.dptr, prefix, strlen (prefix)))) {
+ old_key = key;
+ /* increment to next in line */
+ key = tdb_nextkey(pdb_tdb, key);
+ SAFE_FREE(old_key.dptr);
+ }
+
+ if (key.dptr) {
+
+ /* read from tdbsam */
+ data = tdb_fetch(pdb_tdb, key);
+ if (!data.dptr) {
+ DEBUG(0,("tdbsam_convert: database entry not found: %s.\n",key.dptr));
+ return False;
+ }
+
+ if (!NT_STATUS_IS_OK(pdb_reset_sam(user))) {
+ DEBUG(0,("tdbsam_convert: cannot reset SAM_ACCOUNT.\n"));
+ SAFE_FREE(data.dptr);
+ return False;
+ }
+
+ /* unpack the buffer from the former format */
+ DEBUG(10,("tdbsam_convert: Try unpacking a record with (key:%s) (version:%d)\n", key.dptr, from));
+ switch (from) {
+ case 0:
+ ret = init_sam_from_buffer_v0(user, (uint8 *)data.dptr, data.dsize);
+ break;
+ case 1:
+ ret = init_sam_from_buffer_v1(user, (uint8 *)data.dptr, data.dsize);
+ break;
+ case 2:
+ ret = init_sam_from_buffer_v2(user, (uint8 *)data.dptr, data.dsize);
+ break;
+ default:
+ /* unknown tdbsam version */
+ ret = False;
+ }
+ if (!ret) {
+ DEBUG(0,("tdbsam_convert: Bad SAM_ACCOUNT entry returned from TDB (key:%s) (version:%d)\n", key.dptr, from));
+ SAFE_FREE(data.dptr);
+ return False;
+ }
+
+ /* We're finished with the old data. */
+ SAFE_FREE(data.dptr);
+
+ /* pack from the buffer into the new format */
+ DEBUG(10,("tdbsam_convert: Try packing a record (key:%s) (version:%d)\n", key.dptr, from));
+ if ((data.dsize=init_buffer_from_sam (&buf, user, False)) == -1) {
+ DEBUG(0,("tdbsam_convert: cannot pack the SAM_ACCOUNT into the new format\n"));
+ SAFE_FREE(data.dptr);
+ return False;
+ }
+ data.dptr = (char *)buf;
+
+ /* Store the buffer inside the TDBSAM */
+ if (tdb_store(pdb_tdb, key, data, TDB_MODIFY) != TDB_SUCCESS) {
+ DEBUG(0,("tdbsam_convert: cannot store the SAM_ACCOUNT (key:%s) in new format\n",key.dptr));
+ SAFE_FREE(data.dptr);
+ return False;
+ }
+
+ SAFE_FREE(data.dptr);
+
+ /* increment to next in line */
+ old_key = key;
+ key = tdb_nextkey(pdb_tdb, key);
+ SAFE_FREE(old_key.dptr);
+ }
+
+ }
+
+ pdb_free_sam(&user);
+
+ /* upgrade finished */
+ tdb_store_int32(pdb_tdb, vstring, TDBSAM_VERSION);
+ tdb_unlock_bystring(pdb_tdb, vstring);
+
+ return(True);
+}
+
+/**
+ * Open the TDB passwd database, check version and convert it if needed.
+ * @param name filename of the tdbsam file.
+ * @param open_flags file access mode.
+ * @return a TDB_CONTEXT handle on the tdbsam file.
+ **/
+
+static TDB_CONTEXT * tdbsam_tdbopen (const char *name, int open_flags)
+{
+ TDB_CONTEXT *pdb_tdb;
+ tdbsamver_t version;
+
+ /* Try to open tdb passwd */
+ if (!(pdb_tdb = tdb_open_log(name, 0, TDB_DEFAULT,
+ open_flags, 0600))) {
+ DEBUG(0, ("Unable to open/create TDB passwd\n"));
+ return NULL;
+ }
+
+ /* Check the version */
+ version = (tdbsamver_t) tdb_fetch_int32(pdb_tdb,
+ TDBSAM_VERSION_STRING);
+ if (version == -1)
+ version = 0; /* Version not found, assume version 0 */
+
+ /* Compare the version */
+ if (version > TDBSAM_VERSION) {
+ /* Version more recent than the latest known */
+ DEBUG(0, ("TDBSAM version unknown: %d\n", version));
+ tdb_close(pdb_tdb);
+ pdb_tdb = NULL;
+ }
+ else if (version < TDBSAM_VERSION) {
+ /* Older version, must be converted */
+ DEBUG(1, ("TDBSAM version too old (%d), trying to convert it.\n", version));
+
+ /* Reopen the pdb file with read-write access if needed */
+ if (!(open_flags & O_RDWR)) {
+ DEBUG(10, ("tdbsam_tdbopen: TDB file opened with read only access, reopen it with read-write access.\n"));
+ tdb_close(pdb_tdb);
+ pdb_tdb = tdb_open_log(name, 0, TDB_DEFAULT, (open_flags & 07777770) | O_RDWR, 0600);
+ }
+
+ /* Convert */
+ if (!tdbsam_convert(pdb_tdb, version)){
+ DEBUG(0, ("tdbsam_tdbopen: Error when trying to convert tdbsam: %s\n",name));
+ tdb_close(pdb_tdb);
+ pdb_tdb = NULL;
+ } else {
+ DEBUG(1, ("TDBSAM converted successfully.\n"));
+ }
+
+ /* Reopen the pdb file as it must be */
+ if (!(open_flags & O_RDWR)) {
+ tdb_close(pdb_tdb);
+ pdb_tdb = tdb_open_log(name, 0, TDB_DEFAULT, open_flags, 0600);
+ }
+ }
+
+ return pdb_tdb;
+}
+
+/*****************************************************************************
+ Utility functions to close the tdb sam database
+ ****************************************************************************/
+
+static void tdbsam_tdbclose ( struct tdbsam_privates *state )
+{
+ if ( !state )
+ return;
+
+ if ( state->passwd_tdb ) {
+ tdb_close( state->passwd_tdb );
+ state->passwd_tdb = NULL;
+ }
+
+ return;
+
+}
+
+/****************************************************************************
+ creates a list of user keys
+****************************************************************************/
+
+static int tdbsam_traverse_setpwent(TDB_CONTEXT *t, TDB_DATA key, TDB_DATA data, void *state)
+{
+ const char *prefix = USERPREFIX;
+ int prefixlen = strlen (prefix);
+ struct pwent_list *ptr;
+
+ if ( strncmp(key.dptr, prefix, prefixlen) == 0 ) {
+ if ( !(ptr=SMB_MALLOC_P(struct pwent_list)) ) {
+ DEBUG(0,("tdbsam_traverse_setpwent: Failed to malloc new entry for list\n"));
+
+ /* just return 0 and let the traversal continue */
+ return 0;
+ }
+ ZERO_STRUCTP(ptr);
+
+ /* save a copy of the key */
+
+ ptr->key.dptr = memdup( key.dptr, key.dsize );
+ ptr->key.dsize = key.dsize;
+
+ DLIST_ADD( tdbsam_pwent_list, ptr );
+
+ }
+
+
+ return 0;
+}
+
+/***************************************************************
+ Open the TDB passwd database for SAM account enumeration.
+ Save a list of user keys for iteration.
+****************************************************************/
+
+static NTSTATUS tdbsam_setsampwent(struct pdb_methods *my_methods, BOOL update, uint16 acb_mask)
+{
+ uint32 flags = update ? (O_RDWR|O_CREAT) : O_RDONLY;
+
+ struct tdbsam_privates *tdb_state = (struct tdbsam_privates *)my_methods->private_data;
+
+ if ( !(tdb_state->passwd_tdb = tdbsam_tdbopen(tdb_state->tdbsam_location, flags )) )
+ return NT_STATUS_UNSUCCESSFUL;
+
+ tdb_traverse( tdb_state->passwd_tdb, tdbsam_traverse_setpwent, NULL );
+
+ return NT_STATUS_OK;
+}
+
+
+/***************************************************************
+ 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;
+ struct pwent_list *ptr, *ptr_next;
+
+ tdbsam_tdbclose( tdb_state );
+
+ /* clear out any remaining entries in the list */
+
+ for ( ptr=tdbsam_pwent_list; ptr; ptr = ptr_next ) {
+ ptr_next = ptr->next;
+ DLIST_REMOVE( tdbsam_pwent_list, ptr );
+ SAFE_FREE( ptr->key.dptr);
+ SAFE_FREE( ptr );
+ }
+
+ 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;
+ struct pwent_list *pkey;
+
+ if ( !user ) {
+ DEBUG(0,("tdbsam_getsampwent: SAM_ACCOUNT is NULL.\n"));
+ return nt_status;
+ }
+
+ if ( !tdbsam_pwent_list ) {
+ DEBUG(4,("tdbsam_getsampwent: end of list\n"));
+ tdbsam_tdbclose( tdb_state );
+ return nt_status;
+ }
+
+ if ( !tdb_state->passwd_tdb ) {
+ if ( !(tdb_state->passwd_tdb = tdbsam_tdbopen(tdb_state->tdbsam_location, O_RDONLY)) )
+ return nt_status;
+ }
+
+ /* pull the next entry */
+
+ pkey = tdbsam_pwent_list;
+ DLIST_REMOVE( tdbsam_pwent_list, pkey );
+
+ data = tdb_fetch(tdb_state->passwd_tdb, pkey->key);
+
+ SAFE_FREE( pkey->key.dptr);
+ SAFE_FREE( pkey);
+
+ if (!data.dptr) {
+ DEBUG(5,("pdb_getsampwent: database entry not found. Was the user deleted?\n"));
+ return nt_status;
+ }
+
+ if (!init_sam_from_buffer(user, (unsigned char *)data.dptr, data.dsize)) {
+ DEBUG(0,("pdb_getsampwent: Bad SAM_ACCOUNT entry returned from TDB!\n"));
+ }
+
+ SAFE_FREE( data.dptr );
+
+
+ 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 ) {
+ DEBUG(0,("pdb_getsampwnam: SAM_ACCOUNT is NULL.\n"));
+ return nt_status;
+ }
+
+ /* Data is stored in all lower-case */
+ fstrcpy(name, sname);
+ strlower_m(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 = tdbsam_tdbopen(tdb_state->tdbsam_location, O_RDONLY))) {
+
+ if (errno == ENOENT) {
+ /*
+ * TDB file doesn't exist, so try to create new one. This is useful to avoid
+ * confusing error msg when adding user account first time
+ */
+ if (!(pwd_tdb = tdbsam_tdbopen(tdb_state->tdbsam_location, O_CREAT ))) {
+ DEBUG(0, ("pdb_getsampwnam: TDB passwd (%s) did not exist. File successfully created.\n",
+ tdb_state->tdbsam_location));
+ tdb_close(pwd_tdb);
+ } else {
+ DEBUG(0, ("pdb_getsampwnam: TDB passwd (%s) does not exist. Couldn't create new one. Error was: %s\n",
+ tdb_state->tdbsam_location, strerror(errno)));
+ }
+
+ /* requested user isn't there anyway */
+ nt_status = NT_STATUS_NO_SUCH_USER;
+ return nt_status;
+ }
+ 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(user, (unsigned char *)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 = tdbsam_tdbopen(tdb_state->tdbsam_location, O_RDONLY))) {
+ 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);
+}
+
+static BOOL tdb_delete_samacct_only(TDB_CONTEXT *pwd_tdb,
+ struct pdb_methods *my_methods,
+ SAM_ACCOUNT *sam_pass)
+{
+ TDB_DATA key;
+ fstring keystr;
+ fstring name;
+
+ fstrcpy(name, pdb_get_username(sam_pass));
+ strlower_m(name);
+
+ /* set the search key */
+ slprintf(keystr, sizeof(keystr)-1, "%s%s", USERPREFIX, name);
+ 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 passwd database!\n"));
+ DEBUGADD(5, (" Error: %s\n", tdb_errorstr(pwd_tdb)));
+ tdb_close(pwd_tdb);
+ return False;
+ }
+ return True;
+}
+
+/***************************************************************************
+ 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;
+
+ fstrcpy(name, pdb_get_username(sam_pass));
+ strlower_m(name);
+
+ /* open the TDB */
+ if (!(pwd_tdb = tdbsam_tdbopen(tdb_state->tdbsam_location, O_RDWR))) {
+ 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 account record only
+****************************************************************************/
+static BOOL tdb_update_samacct_only(TDB_CONTEXT *pwd_tdb,
+ struct pdb_methods *my_methods,
+ SAM_ACCOUNT* newpwd, int flag)
+{
+ TDB_DATA key, data;
+ uint8 *buf = NULL;
+ fstring keystr;
+ fstring name;
+ BOOL ret = True;
+
+ /* copy the SAM_ACCOUNT struct into a BYTE buffer for storage */
+ if ((data.dsize=init_buffer_from_sam (&buf, newpwd, False)) == -1) {
+ DEBUG(0,("tdb_update_sam: ERROR - Unable to copy SAM_ACCOUNT info BYTE buffer!\n"));
+ ret = False;
+ goto done;
+ }
+ data.dptr = (char *)buf;
+
+ fstrcpy(name, pdb_get_username(newpwd));
+ strlower_m(name);
+
+ DEBUG(5, ("Storing %saccount %s with RID %d\n",
+ flag == TDB_INSERT ? "(new) " : "", name,
+ pdb_get_user_rid(newpwd)));
+
+ /* 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;
+ }
+
+done:
+ /* cleanup */
+ SAFE_FREE(buf);
+
+ return (ret);
+}
+
+/***************************************************************************
+ Update the TDB SAM RID record only
+****************************************************************************/
+static BOOL tdb_update_ridrec_only(TDB_CONTEXT *pwd_tdb,
+ struct pdb_methods *my_methods,
+ SAM_ACCOUNT* newpwd, int flag)
+{
+ TDB_DATA key, data;
+ fstring keystr;
+ fstring name;
+
+ fstrcpy(name, pdb_get_username(newpwd));
+ strlower_m(name);
+
+ /* setup RID data */
+ data.dsize = strlen(name) + 1;
+ data.dptr = name;
+
+ /* setup the RID index key */
+ slprintf(keystr, sizeof(keystr)-1, "%s%.8x", RIDPREFIX,
+ pdb_get_user_rid(newpwd));
+ 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));
+ return False;
+ }
+
+ return True;
+
+}
+
+/***************************************************************************
+ 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;
+ BOOL ret = True;
+ uint32 user_rid;
+
+ /* 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 = tdbsam_tdbopen(tdb_state->tdbsam_location, O_RDWR | O_CREAT);
+
+ if (!pwd_tdb) {
+ DEBUG(0, ("tdb_update_sam: Unable to open TDB passwd (%s)!\n",
+ tdb_state->tdbsam_location));
+ return False;
+ }
+
+ if (!pdb_get_group_rid(newpwd)) {
+ 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;
+ }
+
+ if ( !(user_rid = pdb_get_user_rid(newpwd)) ) {
+ DEBUG(0,("tdb_update_sam: SAM_ACCOUNT (%s) with no RID!\n", pdb_get_username(newpwd)));
+ ret = False;
+ goto done;
+ }
+
+ if (!tdb_update_samacct_only(pwd_tdb, my_methods, newpwd, flag) ||
+ !tdb_update_ridrec_only(pwd_tdb, my_methods, newpwd, flag)) {
+ ret = False;
+ goto done;
+ }
+
+done:
+ /* cleanup */
+ tdb_close (pwd_tdb);
+
+ 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;
+}
+
+/***************************************************************************
+ Renames a SAM_ACCOUNT
+ - check for the posix user/rename user script
+ - Add and lock the new user record
+ - rename the posix user
+ - rewrite the rid->username record
+ - delete the old user
+ - unlock the new user record
+***************************************************************************/
+static NTSTATUS tdbsam_rename_sam_account(struct pdb_methods *my_methods,
+ SAM_ACCOUNT *old_acct,
+ const char *newname)
+{
+ struct tdbsam_privates *tdb_state =
+ (struct tdbsam_privates *)my_methods->private_data;
+ SAM_ACCOUNT *new_acct = NULL;
+ pstring rename_script;
+ TDB_CONTEXT *pwd_tdb = NULL;
+ NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
+ BOOL interim_account = False;
+
+ if (!*(lp_renameuser_script()))
+ goto done;
+
+ if (!pdb_copy_sam_account(old_acct, &new_acct) ||
+ !pdb_set_username(new_acct, newname, PDB_CHANGED))
+ goto done;
+
+ /* 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 = tdbsam_tdbopen(tdb_state->tdbsam_location, O_RDWR | O_CREAT);
+
+ if (!pwd_tdb) {
+ DEBUG(0, ("tdb_update_sam: Unable to open TDB passwd (%s)!\n",
+ tdb_state->tdbsam_location));
+ goto done;
+ }
+
+ /* add the new account and lock it */
+ if (!tdb_update_samacct_only(pwd_tdb, my_methods, new_acct,
+ TDB_INSERT))
+ goto done;
+ interim_account = True;
+
+ if (tdb_lock_bystring(pwd_tdb, newname, 30) == -1) {
+ goto done;
+ }
+
+ /* rename the posix user */
+ pstrcpy(rename_script, lp_renameuser_script());
+
+ if (*rename_script) {
+ int rename_ret;
+
+ pstring_sub(rename_script, "%unew", newname);
+ pstring_sub(rename_script, "%uold",
+ pdb_get_username(old_acct));
+ rename_ret = smbrun(rename_script, NULL);
+
+ DEBUG(rename_ret ? 0 : 3,("Running the command `%s' gave %d\n", rename_script, rename_ret));
+
+ if (rename_ret)
+ goto done;
+ } else {
+ goto done;
+ }
+
+ /* rewrite the rid->username record */
+ if (!tdb_update_ridrec_only(pwd_tdb, my_methods, new_acct, TDB_MODIFY))
+ goto done;
+ interim_account = False;
+ tdb_unlock_bystring(pwd_tdb, newname);
+
+ tdb_delete_samacct_only(pwd_tdb, my_methods, old_acct);
+
+ ret = NT_STATUS_OK;
+
+
+done:
+ /* cleanup */
+ if (interim_account) {
+ tdb_unlock_bystring(pwd_tdb, newname);
+ tdb_delete_samacct_only(pwd_tdb, my_methods, new_acct);
+ }
+ if (pwd_tdb)
+ tdb_close (pwd_tdb);
+ if (new_acct)
+ pdb_free_sam(&new_acct);
+
+ return (ret);
+}
+
+static void free_private_data(void **vp)
+{
+ struct tdbsam_privates **tdb_state = (struct tdbsam_privates **)vp;
+ tdbsam_tdbclose(*tdb_state);
+ *tdb_state = NULL;
+
+ /* No need to free any further, as it is talloc()ed */
+}
+
+
+
+
+/**
+ * Init tdbsam backend
+ *
+ * @param pdb_context initialised passdb context
+ * @param pdb_method backend methods structure to be filled with function pointers
+ * @param location the backend tdb file location
+ *
+ * @return nt_status code
+ **/
+
+static NTSTATUS pdb_init_tdbsam(PDB_CONTEXT *pdb_context, PDB_METHODS **pdb_method, const char *location)
+{
+ NTSTATUS nt_status;
+ struct tdbsam_privates *tdb_state;
+
+ 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;
+ (*pdb_method)->rename_sam_account = tdbsam_rename_sam_account;
+
+ tdb_state = TALLOC_ZERO_P(pdb_context->mem_ctx, 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);
+ }
+
+ (*pdb_method)->private_data = tdb_state;
+
+ (*pdb_method)->free_private_data = free_private_data;
+
+ return NT_STATUS_OK;
+}
+
+NTSTATUS pdb_tdbsam_init(void)
+{
+ return smb_register_passdb(PASSDB_INTERFACE_VERSION, "tdbsam", pdb_init_tdbsam);
+}
projects / samba / blobdiff