/* * PostgresSQL password backend for samba * Copyright (C) Hamish Friedlander 2003 * Copyright (C) Jelmer Vernooij 2004 * * 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 <libpq-fe.h> #define CONFIG_HOST_DEFAULT "localhost" #define CONFIG_USER_DEFAULT "samba" #define CONFIG_PASS_DEFAULT "" #define CONFIG_PORT_DEFAULT "5432" #define CONFIG_DB_DEFAULT "samba" /* handles for doing db transactions */ typedef struct pdb_pgsql_data { PGconn *handle ; PGresult *pwent ; long currow ; const char *location ; } pdb_pgsql_data ; #define SET_DATA(data,methods) { \ if(!methods){ \ DEBUG(0, ("invalid methods!\n")); \ return NT_STATUS_INVALID_PARAMETER; \ } \ data = (struct pdb_pgsql_data *)methods->private_data; \ if(!data || !(data->handle)){ \ DEBUG(0, ("invalid handle!\n")); \ return NT_STATUS_INVALID_HANDLE; \ } \ } #define SET_DATA_QUIET(data,methods) { \ if(!methods){ \ DEBUG(0, ("invalid methods!\n")); \ return ; \ } \ data = (struct pdb_pgsql_data *)methods->private_data; \ if(!data || !(data->handle)){ \ DEBUG(0, ("invalid handle!\n")); \ return ; \ } \ } #define config_value( data, name, default_value ) \ lp_parm_const_string( GLOBAL_SECTION_SNUM, (data)->location, name, default_value ) static long PQgetlong( PGresult *r, long row, long col ) { if ( PQgetisnull( r, row, col ) ) return 0 ; return atol( PQgetvalue( r, row, col ) ) ; } static NTSTATUS row_to_sam_account ( PGresult *r, long row, SAM_ACCOUNT *u ) { pstring temp ; DOM_SID sid ; if ( row >= PQntuples( r ) ) return NT_STATUS_INVALID_PARAMETER ; pdb_set_logon_time ( u, PQgetlong ( r, row, 0 ), PDB_SET ) ; pdb_set_logoff_time ( u, PQgetlong ( r, row, 1 ), PDB_SET ) ; pdb_set_kickoff_time ( u, PQgetlong ( r, row, 2 ), PDB_SET ) ; pdb_set_pass_last_set_time ( u, PQgetlong ( r, row, 3 ), PDB_SET ) ; pdb_set_pass_can_change_time ( u, PQgetlong ( r, row, 4 ), PDB_SET ) ; pdb_set_pass_must_change_time( u, PQgetlong ( r, row, 5 ), PDB_SET ) ; pdb_set_username ( u, PQgetvalue( r, row, 6 ), PDB_SET ) ; pdb_set_domain ( u, PQgetvalue( r, row, 7 ), PDB_SET ) ; pdb_set_nt_username ( u, PQgetvalue( r, row, 8 ), PDB_SET ) ; pdb_set_fullname ( u, PQgetvalue( r, row, 9 ), PDB_SET ) ; pdb_set_homedir ( u, PQgetvalue( r, row, 10 ), PDB_SET ) ; pdb_set_dir_drive ( u, PQgetvalue( r, row, 11 ), PDB_SET ) ; pdb_set_logon_script ( u, PQgetvalue( r, row, 12 ), PDB_SET ) ; pdb_set_profile_path ( u, PQgetvalue( r, row, 13 ), PDB_SET ) ; pdb_set_acct_desc ( u, PQgetvalue( r, row, 14 ), PDB_SET ) ; pdb_set_workstations ( u, PQgetvalue( r, row, 15 ), PDB_SET ) ; pdb_set_unknown_str ( u, PQgetvalue( r, row, 16 ), PDB_SET ) ; pdb_set_munged_dial ( u, PQgetvalue( r, row, 17 ), PDB_SET ) ; pdb_set_acct_ctrl ( u, PQgetlong ( r, row, 23 ), PDB_SET ) ; pdb_set_logon_divs ( u, PQgetlong ( r, row, 24 ), PDB_SET ) ; pdb_set_hours_len ( u, PQgetlong ( r, row, 25 ), PDB_SET ) ; pdb_set_bad_password_count ( u, PQgetlong (r, row, 26 ), PDB_SET ) ; pdb_set_logon_count ( u, PQgetlong ( r, row, 27 ), PDB_SET ) ; pdb_set_unknown_6 ( u, PQgetlong ( r, row, 28 ), PDB_SET ) ; if ( !PQgetisnull( r, row, 18 ) ) { string_to_sid( &sid, PQgetvalue( r, row, 18 ) ) ; pdb_set_user_sid ( u, &sid, PDB_SET ) ; } if ( !PQgetisnull( r, row, 19 ) ) { string_to_sid( &sid, PQgetvalue( r, row, 19 ) ) ; pdb_set_group_sid( u, &sid, PDB_SET ) ; } if ( pdb_gethexpwd( PQgetvalue( r, row, 20 ), temp ), PDB_SET ) pdb_set_lanman_passwd( u, temp, PDB_SET ) ; if ( pdb_gethexpwd( PQgetvalue( r, row, 21 ), temp ), PDB_SET ) pdb_set_nt_passwd ( u, temp, PDB_SET ) ; /* Only use plaintext password storage when lanman and nt are NOT used */ if ( PQgetisnull( r, row, 20 ) || PQgetisnull( r, row, 21 ) ) pdb_set_plaintext_passwd( u, PQgetvalue( r, row, 22 ) ) ; return NT_STATUS_OK ; } static NTSTATUS pgsqlsam_setsampwent(struct pdb_methods *methods, BOOL update, uint16 acb_mask) { struct pdb_pgsql_data *data ; char *query ; NTSTATUS retval ; SET_DATA( data, methods ) ; query = sql_account_query_select(data->location, update, SQL_SEARCH_NONE, NULL); /* Do it */ DEBUG( 5, ("Executing query %s\n", query) ) ; data->pwent = PQexec( data->handle, query ) ; data->currow = 0 ; /* Result? */ if ( data->pwent == NULL ) { DEBUG( 0, ("Error executing %s, %s\n", query, PQerrorMessage( data->handle ) ) ) ; retval = NT_STATUS_UNSUCCESSFUL ; } else if ( PQresultStatus( data->pwent ) != PGRES_TUPLES_OK ) { DEBUG( 0, ("Error executing %s, %s\n", query, PQresultErrorMessage( data->pwent ) ) ) ; retval = NT_STATUS_UNSUCCESSFUL ; } else { DEBUG( 5, ("pgsqlsam_setsampwent succeeded(%d results)!\n", PQntuples(data->pwent)) ) ; retval = NT_STATUS_OK ; } SAFE_FREE(query); return retval ; } /*************************************************************** End enumeration of the passwd list. ****************************************************************/ static void pgsqlsam_endsampwent(struct pdb_methods *methods) { struct pdb_pgsql_data *data ; SET_DATA_QUIET( data, methods ) ; if (data->pwent != NULL) { PQclear( data->pwent ) ; } data->pwent = NULL ; data->currow = 0 ; DEBUG( 5, ("pgsql_endsampwent called\n") ) ; } /***************************************************************** Get one SAM_ACCOUNT from the list (next in line) *****************************************************************/ static NTSTATUS pgsqlsam_getsampwent( struct pdb_methods *methods, SAM_ACCOUNT *user ) { struct pdb_pgsql_data *data; NTSTATUS retval ; SET_DATA( data, methods ) ; if ( data->pwent == NULL ) { DEBUG( 0, ("invalid pwent\n") ) ; return NT_STATUS_INVALID_PARAMETER ; } retval = row_to_sam_account( data->pwent, data->currow, user ) ; data->currow++ ; return retval ; } static NTSTATUS pgsqlsam_select_by_field ( struct pdb_methods *methods, SAM_ACCOUNT *user, enum sql_search_field field, const char *sname ) { struct pdb_pgsql_data *data ; char *esc ; char *query ; PGresult *result ; NTSTATUS retval ; SET_DATA(data, methods); if ( user == NULL ) { DEBUG( 0, ("pdb_getsampwnam: SAM_ACCOUNT is NULL.\n") ) ; return NT_STATUS_INVALID_PARAMETER; } DEBUG( 5, ("pgsqlsam_select_by_field: getting data where %d = %s(nonescaped)\n", field, sname) ) ; /* Escape sname */ esc = malloc(strlen(sname) * 2 + 1); if ( !esc ) { DEBUG(0, ("Can't allocate memory to store escaped name\n")); return NT_STATUS_NO_MEMORY; } //tmp_sname = smb_xstrdup(sname); PQescapeString( esc, sname, strlen(sname) ) ; query = sql_account_query_select(data->location, True, field, esc); /* Do it */ DEBUG( 5, ("Executing query %s\n", query) ) ; result = PQexec( data->handle, query ) ; /* Result? */ if ( result == NULL ) { DEBUG( 0, ("Error executing %s, %s\n", query, PQerrorMessage( data->handle ) ) ) ; retval = NT_STATUS_UNSUCCESSFUL ; } else if ( PQresultStatus( result ) != PGRES_TUPLES_OK ) { DEBUG( 0, ("Error executing %s, %s\n", query, PQresultErrorMessage( result ) ) ) ; retval = NT_STATUS_UNSUCCESSFUL ; } else { retval = row_to_sam_account( result, 0, user ) ; } SAFE_FREE( esc ) ; SAFE_FREE( query ) ; PQclear( result ) ; return retval ; } /****************************************************************** Lookup a name in the SAM database ******************************************************************/ static NTSTATUS pgsqlsam_getsampwnam ( struct pdb_methods *methods, SAM_ACCOUNT *user, const char *sname ) { struct pdb_pgsql_data *data; SET_DATA(data, methods); if ( !sname ) { DEBUG( 0, ("invalid name specified") ) ; return NT_STATUS_INVALID_PARAMETER; } return pgsqlsam_select_by_field( methods, user, SQL_SEARCH_USER_NAME, sname ) ; } /*************************************************************************** Search by sid **************************************************************************/ static NTSTATUS pgsqlsam_getsampwsid ( struct pdb_methods *methods, SAM_ACCOUNT *user, const DOM_SID *sid ) { struct pdb_pgsql_data *data; fstring sid_str; SET_DATA( data, methods ) ; sid_to_string( sid_str, sid ) ; return pgsqlsam_select_by_field( methods, user, SQL_SEARCH_USER_SID, sid_str ) ; } /*************************************************************************** Delete a SAM_ACCOUNT ****************************************************************************/ static NTSTATUS pgsqlsam_delete_sam_account( struct pdb_methods *methods, SAM_ACCOUNT *sam_pass ) { struct pdb_pgsql_data *data ; const char *sname = pdb_get_username( sam_pass ) ; char *esc ; char *query ; PGresult *result ; NTSTATUS retval ; SET_DATA(data, methods); if ( !sname ) { DEBUG( 0, ("invalid name specified\n") ) ; return NT_STATUS_INVALID_PARAMETER ; } /* Escape sname */ esc = malloc(strlen(sname) * 2 + 1); if ( !esc ) { DEBUG(0, ("Can't allocate memory to store escaped name\n")); return NT_STATUS_NO_MEMORY; } PQescapeString( esc, sname, strlen(sname) ) ; query = sql_account_query_delete(data->location, esc); /* Do it */ result = PQexec( data->handle, query ) ; if ( result == NULL ) { DEBUG( 0, ("Error executing %s, %s\n", query, PQerrorMessage( data->handle ) ) ) ; retval = NT_STATUS_UNSUCCESSFUL ; } else if ( PQresultStatus( result ) != PGRES_COMMAND_OK ) { DEBUG( 0, ("Error executing %s, %s\n", query, PQresultErrorMessage( result ) ) ) ; retval = NT_STATUS_UNSUCCESSFUL ; } else { DEBUG( 5, ("User '%s' deleted\n", sname) ) ; retval = NT_STATUS_OK ; } SAFE_FREE( esc ) ; SAFE_FREE( query ) ; return retval ; } static NTSTATUS pgsqlsam_replace_sam_account( struct pdb_methods *methods, const SAM_ACCOUNT *newpwd, char isupdate ) { struct pdb_pgsql_data *data ; char *query; PGresult *result ; if ( !methods ) { DEBUG( 0, ("invalid methods!\n") ) ; return NT_STATUS_INVALID_PARAMETER ; } data = (struct pdb_pgsql_data *) methods->private_data ; if ( data == NULL || data->handle == NULL ) { DEBUG( 0, ("invalid handle!\n") ) ; return NT_STATUS_INVALID_HANDLE ; } query = sql_account_query_update(data->location, newpwd, isupdate); result = PQexec( data->handle, query ) ; /* Execute the query */ if ( result == NULL ) { DEBUG( 0, ("Error executing %s, %s\n", query, PQerrorMessage( data->handle ) ) ) ; return NT_STATUS_INVALID_PARAMETER; } else if ( PQresultStatus( result ) != PGRES_COMMAND_OK ) { DEBUG( 0, ("Error executing %s, %s\n", query, PQresultErrorMessage( result ) ) ) ; return NT_STATUS_INVALID_PARAMETER; } SAFE_FREE(query); return NT_STATUS_OK; } static NTSTATUS pgsqlsam_add_sam_account ( struct pdb_methods *methods, SAM_ACCOUNT *newpwd ) { return pgsqlsam_replace_sam_account( methods, newpwd, 0 ) ; } static NTSTATUS pgsqlsam_update_sam_account ( struct pdb_methods *methods, SAM_ACCOUNT *newpwd ) { return pgsqlsam_replace_sam_account( methods, newpwd, 1 ) ; } static NTSTATUS pgsqlsam_init ( struct pdb_context *pdb_context, struct pdb_methods **pdb_method, const char *location ) { NTSTATUS nt_status ; struct pdb_pgsql_data *data ; if ( !pdb_context ) { DEBUG( 0, ("invalid pdb_methods specified\n") ) ; return NT_STATUS_UNSUCCESSFUL; } if (!NT_STATUS_IS_OK (nt_status = make_pdb_methods(pdb_context->mem_ctx, pdb_method))) { return nt_status; } (*pdb_method)->name = "pgsqlsam" ; (*pdb_method)->setsampwent = pgsqlsam_setsampwent ; (*pdb_method)->endsampwent = pgsqlsam_endsampwent ; (*pdb_method)->getsampwent = pgsqlsam_getsampwent ; (*pdb_method)->getsampwnam = pgsqlsam_getsampwnam ; (*pdb_method)->getsampwsid = pgsqlsam_getsampwsid ; (*pdb_method)->add_sam_account = pgsqlsam_add_sam_account ; (*pdb_method)->update_sam_account = pgsqlsam_update_sam_account ; (*pdb_method)->delete_sam_account = pgsqlsam_delete_sam_account ; data = talloc( pdb_context->mem_ctx, sizeof( struct pdb_pgsql_data ) ) ; (*pdb_method)->private_data = data ; data->handle = NULL ; data->pwent = NULL ; if ( !location ) { DEBUG( 0, ("No identifier specified. Check the Samba HOWTO Collection for details\n") ) ; return NT_STATUS_INVALID_PARAMETER; } data->location = smb_xstrdup( location ) ; if(!sql_account_config_valid(data->location)) { return NT_STATUS_INVALID_PARAMETER; } DEBUG ( 1, ( "Connecting to database server, host: %s, user: %s, password: XXXXXX, database: %s, port: %s\n", config_value( data, "pgsql host" , CONFIG_HOST_DEFAULT ), config_value( data, "pgsql user" , CONFIG_USER_DEFAULT ), config_value( data, "pgsql database", CONFIG_DB_DEFAULT ), config_value( data, "pgsql port" , CONFIG_PORT_DEFAULT ) ) ) ; /* Do the pgsql initialization */ data->handle = PQsetdbLogin( config_value( data, "pgsql host" , CONFIG_HOST_DEFAULT ), config_value( data, "pgsql port" , CONFIG_PORT_DEFAULT ), NULL, NULL, config_value( data, "pgsql database", CONFIG_DB_DEFAULT ), config_value( data, "pgsql user" , CONFIG_USER_DEFAULT ), config_value( data, "pgsql password", CONFIG_PASS_DEFAULT ) ) ; if ( PQstatus( data->handle ) != CONNECTION_OK ) { DEBUG( 0, ("Failed to connect to pgsql database: error: %s\n", PQerrorMessage( data->handle )) ) ; return NT_STATUS_UNSUCCESSFUL; } DEBUG( 5, ("Connected to pgsql database\n") ) ; return NT_STATUS_OK; } NTSTATUS pdb_pgsql_init(void) { return smb_register_passdb( PASSDB_INTERFACE_VERSION, "pgsql", pgsqlsam_init ) ; }