src/auth/db-sql.c

	db-sql.c revision 6c2c5f20760b06bfb4a40b0ee2ef5ab016bc41f0
6c2c5f20760b06bfb4a40b0ee2ef5ab016bc41f0Timo Sirainen/* Copyright (C) 2003-2004 Timo Sirainen */
6c2c5f20760b06bfb4a40b0ee2ef5ab016bc41f0Timo Sirainen
6c2c5f20760b06bfb4a40b0ee2ef5ab016bc41f0Timo Sirainen#include "config.h"
6c2c5f20760b06bfb4a40b0ee2ef5ab016bc41f0Timo Sirainen#undef HAVE_CONFIG_H
6c2c5f20760b06bfb4a40b0ee2ef5ab016bc41f0Timo Sirainen
6c2c5f20760b06bfb4a40b0ee2ef5ab016bc41f0Timo Sirainen#if defined(PASSDB_SQL) || defined(USERDB_SQL)
6c2c5f20760b06bfb4a40b0ee2ef5ab016bc41f0Timo Sirainen#include "common.h"
6c2c5f20760b06bfb4a40b0ee2ef5ab016bc41f0Timo Sirainen#include "settings.h"
6c2c5f20760b06bfb4a40b0ee2ef5ab016bc41f0Timo Sirainen#include "db-sql.h"
6c2c5f20760b06bfb4a40b0ee2ef5ab016bc41f0Timo Sirainen
6c2c5f20760b06bfb4a40b0ee2ef5ab016bc41f0Timo Sirainen#include <stddef.h>
6c2c5f20760b06bfb4a40b0ee2ef5ab016bc41f0Timo Sirainen#include <stdlib.h>
6c2c5f20760b06bfb4a40b0ee2ef5ab016bc41f0Timo Sirainen
6c2c5f20760b06bfb4a40b0ee2ef5ab016bc41f0Timo Sirainen#define DEF(type, name) { type, #name, offsetof(struct sql_settings, name) }
6c2c5f20760b06bfb4a40b0ee2ef5ab016bc41f0Timo Sirainen
6c2c5f20760b06bfb4a40b0ee2ef5ab016bc41f0Timo Sirainenstatic struct setting_def setting_defs[] = {
6c2c5f20760b06bfb4a40b0ee2ef5ab016bc41f0Timo Sirainen    DEF(SET_STR, driver),
6c2c5f20760b06bfb4a40b0ee2ef5ab016bc41f0Timo Sirainen    DEF(SET_STR, connect),
6c2c5f20760b06bfb4a40b0ee2ef5ab016bc41f0Timo Sirainen    DEF(SET_STR, password_query),
6c2c5f20760b06bfb4a40b0ee2ef5ab016bc41f0Timo Sirainen    DEF(SET_STR, user_query),
6c2c5f20760b06bfb4a40b0ee2ef5ab016bc41f0Timo Sirainen    DEF(SET_STR, default_pass_scheme)
6c2c5f20760b06bfb4a40b0ee2ef5ab016bc41f0Timo Sirainen};
6c2c5f20760b06bfb4a40b0ee2ef5ab016bc41f0Timo Sirainen
6c2c5f20760b06bfb4a40b0ee2ef5ab016bc41f0Timo Sirainenstruct sql_settings default_sql_settings = {
6c2c5f20760b06bfb4a40b0ee2ef5ab016bc41f0Timo Sirainen    MEMBER(driver) NULL,
6c2c5f20760b06bfb4a40b0ee2ef5ab016bc41f0Timo Sirainen    MEMBER(connect) NULL,
6c2c5f20760b06bfb4a40b0ee2ef5ab016bc41f0Timo Sirainen    MEMBER(password_query) "SELECT password FROM users WHERE userid = '%u'",
6c2c5f20760b06bfb4a40b0ee2ef5ab016bc41f0Timo Sirainen    MEMBER(user_query) "SELECT home, uid, gid FROM users WHERE userid = '%u'",
6c2c5f20760b06bfb4a40b0ee2ef5ab016bc41f0Timo Sirainen    MEMBER(default_pass_scheme) "PLAIN-MD5"
6c2c5f20760b06bfb4a40b0ee2ef5ab016bc41f0Timo Sirainen};
6c2c5f20760b06bfb4a40b0ee2ef5ab016bc41f0Timo Sirainen
6c2c5f20760b06bfb4a40b0ee2ef5ab016bc41f0Timo Sirainenstatic struct sql_connection *connections = NULL;
6c2c5f20760b06bfb4a40b0ee2ef5ab016bc41f0Timo Sirainen
6c2c5f20760b06bfb4a40b0ee2ef5ab016bc41f0Timo Sirainenstatic struct sql_connection *sql_conn_find(const char *config_path)
6c2c5f20760b06bfb4a40b0ee2ef5ab016bc41f0Timo Sirainen{
6c2c5f20760b06bfb4a40b0ee2ef5ab016bc41f0Timo Sirainen    struct sql_connection *conn;
6c2c5f20760b06bfb4a40b0ee2ef5ab016bc41f0Timo Sirainen
6c2c5f20760b06bfb4a40b0ee2ef5ab016bc41f0Timo Sirainen    for (conn = connections; conn != NULL; conn = conn->next) {
6c2c5f20760b06bfb4a40b0ee2ef5ab016bc41f0Timo Sirainen        if (strcmp(conn->config_path, config_path) == 0)
6c2c5f20760b06bfb4a40b0ee2ef5ab016bc41f0Timo Sirainen            return conn;
6c2c5f20760b06bfb4a40b0ee2ef5ab016bc41f0Timo Sirainen    }
6c2c5f20760b06bfb4a40b0ee2ef5ab016bc41f0Timo Sirainen
6c2c5f20760b06bfb4a40b0ee2ef5ab016bc41f0Timo Sirainen    return NULL;
6c2c5f20760b06bfb4a40b0ee2ef5ab016bc41f0Timo Sirainen}
6c2c5f20760b06bfb4a40b0ee2ef5ab016bc41f0Timo Sirainen
6c2c5f20760b06bfb4a40b0ee2ef5ab016bc41f0Timo Sirainenstatic const char *parse_setting(const char *key, const char *value,
6c2c5f20760b06bfb4a40b0ee2ef5ab016bc41f0Timo Sirainen                 void *context)
6c2c5f20760b06bfb4a40b0ee2ef5ab016bc41f0Timo Sirainen{
6c2c5f20760b06bfb4a40b0ee2ef5ab016bc41f0Timo Sirainen    struct sql_connection *conn = context;
6c2c5f20760b06bfb4a40b0ee2ef5ab016bc41f0Timo Sirainen
6c2c5f20760b06bfb4a40b0ee2ef5ab016bc41f0Timo Sirainen    return parse_setting_from_defs(conn->pool, setting_defs,
6c2c5f20760b06bfb4a40b0ee2ef5ab016bc41f0Timo Sirainen                       &conn->set, key, value);
6c2c5f20760b06bfb4a40b0ee2ef5ab016bc41f0Timo Sirainen}
6c2c5f20760b06bfb4a40b0ee2ef5ab016bc41f0Timo Sirainen
6c2c5f20760b06bfb4a40b0ee2ef5ab016bc41f0Timo Sirainenstruct sql_connection *db_sql_init(const char *config_path)
6c2c5f20760b06bfb4a40b0ee2ef5ab016bc41f0Timo Sirainen{
6c2c5f20760b06bfb4a40b0ee2ef5ab016bc41f0Timo Sirainen    struct sql_connection *conn;
6c2c5f20760b06bfb4a40b0ee2ef5ab016bc41f0Timo Sirainen    pool_t pool;
6c2c5f20760b06bfb4a40b0ee2ef5ab016bc41f0Timo Sirainen
6c2c5f20760b06bfb4a40b0ee2ef5ab016bc41f0Timo Sirainen    conn = sql_conn_find(config_path);
6c2c5f20760b06bfb4a40b0ee2ef5ab016bc41f0Timo Sirainen    if (conn != NULL) {
6c2c5f20760b06bfb4a40b0ee2ef5ab016bc41f0Timo Sirainen        conn->refcount++;
6c2c5f20760b06bfb4a40b0ee2ef5ab016bc41f0Timo Sirainen        return conn;
6c2c5f20760b06bfb4a40b0ee2ef5ab016bc41f0Timo Sirainen    }
6c2c5f20760b06bfb4a40b0ee2ef5ab016bc41f0Timo Sirainen
6c2c5f20760b06bfb4a40b0ee2ef5ab016bc41f0Timo Sirainen    pool = pool_alloconly_create("sql_connection", 1024);
6c2c5f20760b06bfb4a40b0ee2ef5ab016bc41f0Timo Sirainen    conn = p_new(pool, struct sql_connection, 1);
6c2c5f20760b06bfb4a40b0ee2ef5ab016bc41f0Timo Sirainen    conn->pool = pool;
6c2c5f20760b06bfb4a40b0ee2ef5ab016bc41f0Timo Sirainen
6c2c5f20760b06bfb4a40b0ee2ef5ab016bc41f0Timo Sirainen    conn->refcount = 1;
6c2c5f20760b06bfb4a40b0ee2ef5ab016bc41f0Timo Sirainen
6c2c5f20760b06bfb4a40b0ee2ef5ab016bc41f0Timo Sirainen    conn->config_path = p_strdup(pool, config_path);
6c2c5f20760b06bfb4a40b0ee2ef5ab016bc41f0Timo Sirainen    conn->set = default_sql_settings;
6c2c5f20760b06bfb4a40b0ee2ef5ab016bc41f0Timo Sirainen    if (!settings_read(config_path, NULL, parse_setting, NULL, conn))
6c2c5f20760b06bfb4a40b0ee2ef5ab016bc41f0Timo Sirainen        exit(FATAL_DEFAULT);
6c2c5f20760b06bfb4a40b0ee2ef5ab016bc41f0Timo Sirainen
6c2c5f20760b06bfb4a40b0ee2ef5ab016bc41f0Timo Sirainen    if (conn->set.driver == NULL) {
6c2c5f20760b06bfb4a40b0ee2ef5ab016bc41f0Timo Sirainen        i_fatal("sql: driver not set in configuration file %s",
6c2c5f20760b06bfb4a40b0ee2ef5ab016bc41f0Timo Sirainen            config_path);
6c2c5f20760b06bfb4a40b0ee2ef5ab016bc41f0Timo Sirainen    }
6c2c5f20760b06bfb4a40b0ee2ef5ab016bc41f0Timo Sirainen    if (conn->set.connect == NULL) {
6c2c5f20760b06bfb4a40b0ee2ef5ab016bc41f0Timo Sirainen        i_fatal("sql: connect string not set in configuration file %s",
6c2c5f20760b06bfb4a40b0ee2ef5ab016bc41f0Timo Sirainen            config_path);
6c2c5f20760b06bfb4a40b0ee2ef5ab016bc41f0Timo Sirainen    }
6c2c5f20760b06bfb4a40b0ee2ef5ab016bc41f0Timo Sirainen
6c2c5f20760b06bfb4a40b0ee2ef5ab016bc41f0Timo Sirainen    conn->next = connections;
6c2c5f20760b06bfb4a40b0ee2ef5ab016bc41f0Timo Sirainen    connections = conn;
6c2c5f20760b06bfb4a40b0ee2ef5ab016bc41f0Timo Sirainen    return conn;
6c2c5f20760b06bfb4a40b0ee2ef5ab016bc41f0Timo Sirainen}
6c2c5f20760b06bfb4a40b0ee2ef5ab016bc41f0Timo Sirainen
6c2c5f20760b06bfb4a40b0ee2ef5ab016bc41f0Timo Sirainenvoid db_sql_connect(struct sql_connection *conn)
6c2c5f20760b06bfb4a40b0ee2ef5ab016bc41f0Timo Sirainen{
6c2c5f20760b06bfb4a40b0ee2ef5ab016bc41f0Timo Sirainen    if (conn->db == NULL)
6c2c5f20760b06bfb4a40b0ee2ef5ab016bc41f0Timo Sirainen        conn->db = sql_init(conn->set.driver, conn->set.connect);
6c2c5f20760b06bfb4a40b0ee2ef5ab016bc41f0Timo Sirainen}
6c2c5f20760b06bfb4a40b0ee2ef5ab016bc41f0Timo Sirainen
6c2c5f20760b06bfb4a40b0ee2ef5ab016bc41f0Timo Sirainenvoid db_sql_unref(struct sql_connection *conn)
6c2c5f20760b06bfb4a40b0ee2ef5ab016bc41f0Timo Sirainen{
6c2c5f20760b06bfb4a40b0ee2ef5ab016bc41f0Timo Sirainen    if (--conn->refcount > 0)
6c2c5f20760b06bfb4a40b0ee2ef5ab016bc41f0Timo Sirainen        return;
6c2c5f20760b06bfb4a40b0ee2ef5ab016bc41f0Timo Sirainen
6c2c5f20760b06bfb4a40b0ee2ef5ab016bc41f0Timo Sirainen    sql_deinit(conn->db);
6c2c5f20760b06bfb4a40b0ee2ef5ab016bc41f0Timo Sirainen    pool_unref(conn->pool);
6c2c5f20760b06bfb4a40b0ee2ef5ab016bc41f0Timo Sirainen}
6c2c5f20760b06bfb4a40b0ee2ef5ab016bc41f0Timo Sirainen
6c2c5f20760b06bfb4a40b0ee2ef5ab016bc41f0Timo Sirainen#endif