/* * MySQL password backend for samba * Copyright (C) Jelmer Vernooij 2002-2004 * * 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 <mysql/mysql.h> #define CONFIG_HOST_DEFAULT "localhost" #define CONFIG_USER_DEFAULT "samba" #define CONFIG_PASS_DEFAULT "" #define CONFIG_PORT_DEFAULT "3306" #define CONFIG_DB_DEFAULT "samba" static int mysqlsam_debug_level = DBGC_ALL; #undef DBGC_CLASS #define DBGC_CLASS mysqlsam_debug_level typedef struct pdb_mysql_data { MYSQL *handle; MYSQL_RES *pwent; const char *location; } pdb_mysql_data; #define SET_DATA(data,methods) { \ if(!methods){ \ DEBUG(0, ("invalid methods!\n")); \ return NT_STATUS_INVALID_PARAMETER; \ } \ data = (struct pdb_mysql_data *)methods->private_data; \ if(!data || !(data->handle)){ \ DEBUG(0, ("invalid handle!\n")); \ return NT_STATUS_INVALID_HANDLE; \ } \ } #define config_value( data, name, default_value ) \ lp_parm_const_string( GLOBAL_SECTION_SNUM, (data)->location, name, default_value ) static long xatol(const char *d) { if(!d) return 0; return atol(d); } static NTSTATUS row_to_sam_account(MYSQL_RES * r, SAM_ACCOUNT * u) { MYSQL_ROW row; pstring temp; unsigned int num_fields; DOM_SID sid; num_fields = mysql_num_fields(r); row = mysql_fetch_row(r); if (!row) return NT_STATUS_INVALID_PARAMETER; pdb_set_logon_time(u, xatol(row[0]), PDB_SET); pdb_set_logoff_time(u, xatol(row[1]), PDB_SET); pdb_set_kickoff_time(u, xatol(row[2]), PDB_SET); pdb_set_pass_last_set_time(u, xatol(row[3]), PDB_SET); pdb_set_pass_can_change_time(u, xatol(row[4]), PDB_SET); pdb_set_pass_must_change_time(u, xatol(row[5]), PDB_SET); pdb_set_username(u, row[6], PDB_SET); pdb_set_domain(u, row[7], PDB_SET); pdb_set_nt_username(u, row[8], PDB_SET); pdb_set_fullname(u, row[9], PDB_SET); pdb_set_homedir(u, row[10], PDB_SET); pdb_set_dir_drive(u, row[11], PDB_SET); pdb_set_logon_script(u, row[12], PDB_SET); pdb_set_profile_path(u, row[13], PDB_SET); pdb_set_acct_desc(u, row[14], PDB_SET); pdb_set_workstations(u, row[15], PDB_SET); pdb_set_unknown_str(u, row[16], PDB_SET); pdb_set_munged_dial(u, row[17], PDB_SET); if(!row[18] || !string_to_sid(&sid, row[18])) { DEBUG(0,("No user SID retrieved from database!\n")); } else { pdb_set_user_sid(u, &sid, PDB_SET); } if(row[19]) { string_to_sid(&sid, row[19]); pdb_set_group_sid(u, &sid, PDB_SET); } if (pdb_gethexpwd(row[20], temp)) pdb_set_lanman_passwd(u, temp, PDB_SET); if (pdb_gethexpwd(row[21], temp)) pdb_set_nt_passwd(u, temp, PDB_SET); /* Only use plaintext password storage when lanman and nt are * NOT used */ if (!row[20] || !row[21]) pdb_set_plaintext_passwd(u, row[22]); pdb_set_acct_ctrl(u, xatol(row[23]), PDB_SET); pdb_set_logon_divs(u, xatol(row[24]), PDB_SET); pdb_set_hours_len(u, xatol(row[25]), PDB_SET); pdb_set_bad_password_count(u, xatol(row[26]), PDB_SET); pdb_set_logon_count(u, xatol(row[27]), PDB_SET); pdb_set_unknown_6(u, xatol(row[28]), PDB_SET); return NT_STATUS_OK; } static NTSTATUS mysqlsam_setsampwent(struct pdb_methods *methods, BOOL update, uint16 acb_mask) { struct pdb_mysql_data *data = (struct pdb_mysql_data *) methods->private_data; char *query; int ret; if (!data || !(data->handle)) { DEBUG(0, ("invalid handle!\n")); return NT_STATUS_INVALID_HANDLE; } query = sql_account_query_select(data->location, update, SQL_SEARCH_NONE, NULL); ret = mysql_query(data->handle, query); SAFE_FREE(query); if (ret) { DEBUG(0, ("Error executing MySQL query %s\n", mysql_error(data->handle))); return NT_STATUS_UNSUCCESSFUL; } data->pwent = mysql_store_result(data->handle); if (data->pwent == NULL) { DEBUG(0, ("Error storing results: %s\n", mysql_error(data->handle))); return NT_STATUS_UNSUCCESSFUL; } DEBUG(5, ("mysqlsam_setsampwent succeeded(%llu results)!\n", mysql_num_rows(data->pwent))); return NT_STATUS_OK; } /*************************************************************** End enumeration of the passwd list. ****************************************************************/ static void mysqlsam_endsampwent(struct pdb_methods *methods) { struct pdb_mysql_data *data = (struct pdb_mysql_data *) methods->private_data; if (data == NULL) { DEBUG(0, ("invalid handle!\n")); return; } if (data->pwent != NULL) mysql_free_result(data->pwent); data->pwent = NULL; DEBUG(5, ("mysql_endsampwent called\n")); } /***************************************************************** Get one SAM_ACCOUNT from the list (next in line) *****************************************************************/ static NTSTATUS mysqlsam_getsampwent(struct pdb_methods *methods, SAM_ACCOUNT * user) { struct pdb_mysql_data *data; SET_DATA(data, methods); if (data->pwent == NULL) { DEBUG(0, ("invalid pwent\n")); return NT_STATUS_INVALID_PARAMETER; } return row_to_sam_account(data->pwent, user); } static NTSTATUS mysqlsam_select_by_field(struct pdb_methods * methods, SAM_ACCOUNT * user, enum sql_search_field field, const char *sname) { char *esc_sname; char *query; NTSTATUS ret; MYSQL_RES *res; int mysql_ret; struct pdb_mysql_data *data; char *tmp_sname; SET_DATA(data, methods); esc_sname = malloc(strlen(sname) * 2 + 1); if (!esc_sname) { return NT_STATUS_NO_MEMORY; } tmp_sname = smb_xstrdup(sname); /* Escape sname */ mysql_real_escape_string(data->handle, esc_sname, tmp_sname, strlen(tmp_sname)); SAFE_FREE(tmp_sname); if (user == NULL) { DEBUG(0, ("pdb_getsampwnam: SAM_ACCOUNT is NULL.\n")); SAFE_FREE(esc_sname); return NT_STATUS_INVALID_PARAMETER; } query = sql_account_query_select(data->location, True, field, esc_sname); SAFE_FREE(esc_sname); DEBUG(5, ("Executing query %s\n", query)); mysql_ret = mysql_query(data->handle, query); SAFE_FREE(query); if (mysql_ret) { DEBUG(0, ("Error while executing MySQL query %s\n", mysql_error(data->handle))); return NT_STATUS_UNSUCCESSFUL; } res = mysql_store_result(data->handle); if (res == NULL) { DEBUG(0, ("Error storing results: %s\n", mysql_error(data->handle))); return NT_STATUS_UNSUCCESSFUL; } ret = row_to_sam_account(res, user); mysql_free_result(res); return ret; } /****************************************************************** Lookup a name in the SAM database ******************************************************************/ static NTSTATUS mysqlsam_getsampwnam(struct pdb_methods *methods, SAM_ACCOUNT * user, const char *sname) { struct pdb_mysql_data *data; SET_DATA(data, methods); if (!sname) { DEBUG(0, ("invalid name specified")); return NT_STATUS_INVALID_PARAMETER; } return mysqlsam_select_by_field(methods, user, SQL_SEARCH_USER_NAME, sname); } /*************************************************************************** Search by sid **************************************************************************/ static NTSTATUS mysqlsam_getsampwsid(struct pdb_methods *methods, SAM_ACCOUNT * user, const DOM_SID * sid) { struct pdb_mysql_data *data; fstring sid_str; SET_DATA(data, methods); sid_to_string(sid_str, sid); return mysqlsam_select_by_field(methods, user, SQL_SEARCH_USER_SID, sid_str); } /*************************************************************************** Delete a SAM_ACCOUNT ****************************************************************************/ static NTSTATUS mysqlsam_delete_sam_account(struct pdb_methods *methods, SAM_ACCOUNT * sam_pass) { const char *sname = pdb_get_username(sam_pass); char *esc; char *query; int ret; struct pdb_mysql_data *data; char *tmp_sname; SET_DATA(data, methods); if (!methods) { DEBUG(0, ("invalid methods!\n")); return NT_STATUS_INVALID_PARAMETER; } data = (struct pdb_mysql_data *) methods->private_data; if (!data || !(data->handle)) { DEBUG(0, ("invalid handle!\n")); return NT_STATUS_INVALID_HANDLE; } 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; } tmp_sname = smb_xstrdup(sname); mysql_real_escape_string(data->handle, esc, tmp_sname, strlen(tmp_sname)); SAFE_FREE(tmp_sname); query = sql_account_query_delete(data->location, esc); SAFE_FREE(esc); ret = mysql_query(data->handle, query); SAFE_FREE(query); if (ret) { DEBUG(0, ("Error while executing query: %s\n", mysql_error(data->handle))); return NT_STATUS_UNSUCCESSFUL; } DEBUG(5, ("User '%s' deleted\n", sname)); return NT_STATUS_OK; } static NTSTATUS mysqlsam_replace_sam_account(struct pdb_methods *methods, const SAM_ACCOUNT * newpwd, char isupdate) { struct pdb_mysql_data *data; char *query; if (!methods) { DEBUG(0, ("invalid methods!\n")); return NT_STATUS_INVALID_PARAMETER; } data = (struct pdb_mysql_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); /* Execute the query */ if (mysql_query(data->handle, query)) { DEBUG(0, ("Error executing %s, %s\n", query, mysql_error(data->handle))); return NT_STATUS_INVALID_PARAMETER; } SAFE_FREE(query); return NT_STATUS_OK; } static NTSTATUS mysqlsam_add_sam_account(struct pdb_methods *methods, SAM_ACCOUNT * newpwd) { return mysqlsam_replace_sam_account(methods, newpwd, 0); } static NTSTATUS mysqlsam_update_sam_account(struct pdb_methods *methods, SAM_ACCOUNT * newpwd) { return mysqlsam_replace_sam_account(methods, newpwd, 1); } static NTSTATUS mysqlsam_init(struct pdb_context * pdb_context, struct pdb_methods ** pdb_method, const char *location) { NTSTATUS nt_status; struct pdb_mysql_data *data; mysqlsam_debug_level = debug_add_class("mysqlsam"); if (mysqlsam_debug_level == -1) { mysqlsam_debug_level = DBGC_ALL; DEBUG(0, ("mysqlsam: Couldn't register custom debugging class!\n")); } 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 = "mysqlsam"; (*pdb_method)->setsampwent = mysqlsam_setsampwent; (*pdb_method)->endsampwent = mysqlsam_endsampwent; (*pdb_method)->getsampwent = mysqlsam_getsampwent; (*pdb_method)->getsampwnam = mysqlsam_getsampwnam; (*pdb_method)->getsampwsid = mysqlsam_getsampwsid; (*pdb_method)->add_sam_account = mysqlsam_add_sam_account; (*pdb_method)->update_sam_account = mysqlsam_update_sam_account; (*pdb_method)->delete_sam_account = mysqlsam_delete_sam_account; data = talloc(pdb_context->mem_ctx, sizeof(struct pdb_mysql_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); DEBUG(1, ("Connecting to database server, host: %s, user: %s, database: %s, port: %ld\n", config_value(data, "mysql host", CONFIG_HOST_DEFAULT), config_value(data, "mysql user", CONFIG_USER_DEFAULT), config_value(data, "mysql database", CONFIG_DB_DEFAULT), xatol(config_value(data, "mysql port", CONFIG_PORT_DEFAULT)))); /* Do the mysql initialization */ data->handle = mysql_init(NULL); if (!data->handle) { DEBUG(0, ("Failed to connect to server\n")); return NT_STATUS_UNSUCCESSFUL; } if(!sql_account_config_valid(data->location)) { return NT_STATUS_INVALID_PARAMETER; } /* Process correct entry in $HOME/.my.conf */ if (!mysql_real_connect(data->handle, config_value(data, "mysql host", CONFIG_HOST_DEFAULT), config_value(data, "mysql user", CONFIG_USER_DEFAULT), config_value(data, "mysql password", CONFIG_PASS_DEFAULT), config_value(data, "mysql database", CONFIG_DB_DEFAULT), xatol(config_value (data, "mysql port", CONFIG_PORT_DEFAULT)), NULL, 0)) { DEBUG(0, ("Failed to connect to mysql database: error: %s\n", mysql_error(data->handle))); return NT_STATUS_UNSUCCESSFUL; } DEBUG(5, ("Connected to mysql db\n")); return NT_STATUS_OK; } NTSTATUS pdb_mysql_init(void) { return smb_register_passdb(PASSDB_INTERFACE_VERSION, "mysql", mysqlsam_init); }