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mysqlnd.c
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mysqlnd.c
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/*
+----------------------------------------------------------------------+
| PHP Version 7 |
+----------------------------------------------------------------------+
| Copyright (c) 2006-2015 The PHP Group |
+----------------------------------------------------------------------+
| This source file is subject to version 3.01 of the PHP license, |
| that is bundled with this package in the file LICENSE, and is |
| available through the world-wide-web at the following url: |
| http://www.php.net/license/3_01.txt |
| If you did not receive a copy of the PHP license and are unable to |
| obtain it through the world-wide-web, please send a note to |
| license@php.net so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Authors: Andrey Hristov <andrey@mysql.com> |
| Ulf Wendel <uwendel@mysql.com> |
| Georg Richter <georg@mysql.com> |
+----------------------------------------------------------------------+
*/
/* $Id$ */
#include "php.h"
#include "mysqlnd.h"
#include "mysqlnd_wireprotocol.h"
#include "mysqlnd_priv.h"
#include "mysqlnd_result.h"
#include "mysqlnd_statistics.h"
#include "mysqlnd_charset.h"
#include "mysqlnd_debug.h"
#include "zend_smart_str.h"
extern MYSQLND_CHARSET *mysqlnd_charsets;
PHPAPI const char * const mysqlnd_old_passwd = "mysqlnd cannot connect to MySQL 4.1+ using the old insecure authentication. "
"Please use an administration tool to reset your password with the command SET PASSWORD = PASSWORD('your_existing_password'). This will "
"store a new, and more secure, hash value in mysql.user. If this user is used in other scripts executed by PHP 5.2 or earlier you might need to remove the old-passwords "
"flag from your my.cnf file";
PHPAPI const char * const mysqlnd_server_gone = "MySQL server has gone away";
PHPAPI const char * const mysqlnd_out_of_sync = "Commands out of sync; you can't run this command now";
PHPAPI const char * const mysqlnd_out_of_memory = "Out of memory";
PHPAPI MYSQLND_STATS *mysqlnd_global_stats = NULL;
/* {{{ mysqlnd_upsert_status::reset */
void
MYSQLND_METHOD(mysqlnd_upsert_status, reset)(MYSQLND_UPSERT_STATUS * const upsert_status)
{
upsert_status->warning_count = 0;
upsert_status->server_status = 0;
upsert_status->affected_rows = 0;
upsert_status->last_insert_id = 0;
}
/* }}} */
/* {{{ mysqlnd_upsert_status::set_affected_rows_to_error */
void
MYSQLND_METHOD(mysqlnd_upsert_status, set_affected_rows_to_error)(MYSQLND_UPSERT_STATUS * upsert_status)
{
upsert_status->affected_rows = (uint64_t) ~0;
}
/* }}} */
MYSQLND_CLASS_METHODS_START(mysqlnd_upsert_status)
MYSQLND_METHOD(mysqlnd_upsert_status, reset),
MYSQLND_METHOD(mysqlnd_upsert_status, set_affected_rows_to_error),
MYSQLND_CLASS_METHODS_END;
/* {{{ mysqlnd_upsert_status_init */
void
mysqlnd_upsert_status_init(MYSQLND_UPSERT_STATUS * const upsert_status)
{
upsert_status->m = &MYSQLND_CLASS_METHOD_TABLE_NAME(mysqlnd_upsert_status);
upsert_status->m->reset(upsert_status);
}
/* }}} */
/* {{{ mysqlnd_error_list_pdtor */
static void
mysqlnd_error_list_pdtor(void * pDest)
{
MYSQLND_ERROR_LIST_ELEMENT * element = (MYSQLND_ERROR_LIST_ELEMENT *) pDest;
DBG_ENTER("mysqlnd_error_list_pdtor");
if (element->error) {
mnd_pefree(element->error, TRUE);
}
DBG_VOID_RETURN;
}
/* }}} */
/* {{{ mysqlnd_error_info::reset */
static void
MYSQLND_METHOD(mysqlnd_error_info, reset)(MYSQLND_ERROR_INFO * const info)
{
DBG_ENTER("mysqlnd_error_info::reset")
info->error_no = 0;
info->error[0] = '\0';
memset(info->sqlstate, 0, sizeof(info->sqlstate));
if (info->error_list) {
zend_llist_clean(info->error_list);
}
DBG_VOID_RETURN;
}
/* }}} */
/* {{{ mysqlnd_error_info::set_client_error */
static void
MYSQLND_METHOD(mysqlnd_error_info, set_client_error)(MYSQLND_ERROR_INFO * const info,
const unsigned int err_no,
const char * const sqlstate,
const char * const error)
{
DBG_ENTER("mysqlnd_error_info::set_client_error")
if (err_no) {
info->error_no = err_no;
strlcpy(info->sqlstate, sqlstate, sizeof(info->sqlstate));
strlcpy(info->error, error, sizeof(info->error));
if (info->error_list) {
MYSQLND_ERROR_LIST_ELEMENT error_for_the_list = {0};
error_for_the_list.error_no = err_no;
strlcpy(error_for_the_list.sqlstate, sqlstate, sizeof(error_for_the_list.sqlstate));
error_for_the_list.error = mnd_pestrdup(error, TRUE);
if (error_for_the_list.error) {
DBG_INF_FMT("adding error [%s] to the list", error_for_the_list.error);
zend_llist_add_element(info->error_list, &error_for_the_list);
}
}
} else {
info->m->reset(info);
}
DBG_VOID_RETURN;
}
/* }}} */
MYSQLND_CLASS_METHODS_START(mysqlnd_error_info)
MYSQLND_METHOD(mysqlnd_error_info, reset),
MYSQLND_METHOD(mysqlnd_error_info, set_client_error),
MYSQLND_CLASS_METHODS_END;
/* {{{ mysqlnd_upsert_status_init */
enum_func_status
mysqlnd_error_info_init(MYSQLND_ERROR_INFO * const info, zend_bool persistent)
{
DBG_ENTER("mysqlnd_error_info_init")
info->m = &MYSQLND_CLASS_METHOD_TABLE_NAME(mysqlnd_error_info);
info->m->reset(info);
info->error_list = mnd_pecalloc(1, sizeof(zend_llist), persistent);
if (info->error_list) {
zend_llist_init(info->error_list, sizeof(MYSQLND_ERROR_LIST_ELEMENT), (llist_dtor_func_t) mysqlnd_error_list_pdtor, persistent);
}
DBG_RETURN(info->error_list? PASS:FAIL);
}
/* }}} */
/* {{{ mysqlnd_conn_data::free_options */
static void
MYSQLND_METHOD(mysqlnd_conn_data, free_options)(MYSQLND_CONN_DATA * conn)
{
zend_bool pers = conn->persistent;
if (conn->options->charset_name) {
mnd_pefree(conn->options->charset_name, pers);
conn->options->charset_name = NULL;
}
if (conn->options->auth_protocol) {
mnd_pefree(conn->options->auth_protocol, pers);
conn->options->auth_protocol = NULL;
}
if (conn->options->num_commands) {
unsigned int i;
for (i = 0; i < conn->options->num_commands; i++) {
/* allocated with pestrdup */
mnd_pefree(conn->options->init_commands[i], pers);
}
mnd_pefree(conn->options->init_commands, pers);
conn->options->init_commands = NULL;
}
if (conn->options->cfg_file) {
mnd_pefree(conn->options->cfg_file, pers);
conn->options->cfg_file = NULL;
}
if (conn->options->cfg_section) {
mnd_pefree(conn->options->cfg_section, pers);
conn->options->cfg_section = NULL;
}
if (conn->options->connect_attr) {
zend_hash_destroy(conn->options->connect_attr);
mnd_pefree(conn->options->connect_attr, pers);
conn->options->connect_attr = NULL;
}
}
/* }}} */
/* {{{ mysqlnd_conn_data::free_contents */
static void
MYSQLND_METHOD(mysqlnd_conn_data, free_contents)(MYSQLND_CONN_DATA * conn)
{
zend_bool pers = conn->persistent;
DBG_ENTER("mysqlnd_conn_data::free_contents");
if (conn->current_result) {
conn->current_result->m.free_result(conn->current_result, TRUE);
conn->current_result = NULL;
}
if (conn->net) {
conn->net->data->m.free_contents(conn->net);
}
DBG_INF("Freeing memory of members");
if (conn->host) {
mnd_pefree(conn->host, pers);
conn->host = NULL;
}
if (conn->user) {
mnd_pefree(conn->user, pers);
conn->user = NULL;
}
if (conn->passwd) {
mnd_pefree(conn->passwd, pers);
conn->passwd = NULL;
}
if (conn->connect_or_select_db) {
mnd_pefree(conn->connect_or_select_db, pers);
conn->connect_or_select_db = NULL;
}
if (conn->unix_socket) {
mnd_pefree(conn->unix_socket, pers);
conn->unix_socket = NULL;
}
DBG_INF_FMT("scheme=%s", conn->scheme);
if (conn->scheme) {
mnd_pefree(conn->scheme, pers);
conn->scheme = NULL;
}
if (conn->server_version) {
mnd_pefree(conn->server_version, pers);
conn->server_version = NULL;
}
if (conn->host_info) {
mnd_pefree(conn->host_info, pers);
conn->host_info = NULL;
}
if (conn->auth_plugin_data) {
mnd_pefree(conn->auth_plugin_data, pers);
conn->auth_plugin_data = NULL;
}
if (conn->last_message) {
mnd_pefree(conn->last_message, pers);
conn->last_message = NULL;
}
if (conn->error_info->error_list) {
zend_llist_clean(conn->error_info->error_list);
mnd_pefree(conn->error_info->error_list, pers);
conn->error_info->error_list = NULL;
}
conn->charset = NULL;
conn->greet_charset = NULL;
DBG_VOID_RETURN;
}
/* }}} */
/* {{{ mysqlnd_conn_data::dtor */
static void
MYSQLND_METHOD_PRIVATE(mysqlnd_conn_data, dtor)(MYSQLND_CONN_DATA * conn)
{
DBG_ENTER("mysqlnd_conn_data::dtor");
DBG_INF_FMT("conn=%llu", conn->thread_id);
conn->m->free_contents(conn);
conn->m->free_options(conn);
if (conn->net) {
mysqlnd_net_free(conn->net, conn->stats, conn->error_info);
conn->net = NULL;
}
if (conn->payload_decoder_factory) {
mysqlnd_protocol_payload_decoder_factory_free(conn->payload_decoder_factory);
conn->payload_decoder_factory = NULL;
}
if (conn->stats) {
mysqlnd_stats_end(conn->stats, conn->persistent);
}
mnd_pefree(conn, conn->persistent);
DBG_VOID_RETURN;
}
/* }}} */
/* {{{ mysqlnd_conn_data::send_command_handle_response */
static enum_func_status
MYSQLND_METHOD(mysqlnd_conn_data, send_command_handle_response)(
MYSQLND_CONN_DATA * const conn,
const enum mysqlnd_packet_type ok_packet,
const zend_bool silent,
const enum php_mysqlnd_server_command command,
const zend_bool ignore_upsert_status)
{
enum_func_status ret = FAIL;
DBG_ENTER("mysqlnd_conn_data::send_command_handle_response");
DBG_INF_FMT("silent=%u packet=%u command=%s", silent, ok_packet, mysqlnd_command_to_text[command]);
switch (ok_packet) {
case PROT_OK_PACKET:{
MYSQLND_PACKET_OK * ok_response = conn->payload_decoder_factory->m.get_ok_packet(conn->payload_decoder_factory, FALSE);
if (!ok_response) {
SET_OOM_ERROR(conn->error_info);
break;
}
if (FAIL == (ret = PACKET_READ(ok_response))) {
if (!silent) {
DBG_ERR_FMT("Error while reading %s's OK packet", mysqlnd_command_to_text[command]);
php_error_docref(NULL, E_WARNING, "Error while reading %s's OK packet. PID=%u",
mysqlnd_command_to_text[command], getpid());
}
} else {
DBG_INF_FMT("OK from server");
if (0xFF == ok_response->field_count) {
/* The server signalled error. Set the error */
SET_CLIENT_ERROR(conn->error_info, ok_response->error_no, ok_response->sqlstate, ok_response->error);
ret = FAIL;
/*
Cover a protocol design error: error packet does not
contain the server status. Therefore, the client has no way
to find out whether there are more result sets of
a multiple-result-set statement pending. Luckily, in 5.0 an
error always aborts execution of a statement, wherever it is
a multi-statement or a stored procedure, so it should be
safe to unconditionally turn off the flag here.
*/
conn->upsert_status->server_status &= ~SERVER_MORE_RESULTS_EXISTS;
UPSERT_STATUS_SET_AFFECTED_ROWS_TO_ERROR(conn->upsert_status);
} else {
SET_NEW_MESSAGE(conn->last_message, conn->last_message_len,
ok_response->message, ok_response->message_len,
conn->persistent);
if (!ignore_upsert_status) {
UPSERT_STATUS_RESET(conn->upsert_status);
conn->upsert_status->warning_count = ok_response->warning_count;
conn->upsert_status->server_status = ok_response->server_status;
conn->upsert_status->affected_rows = ok_response->affected_rows;
conn->upsert_status->last_insert_id = ok_response->last_insert_id;
}
}
}
PACKET_FREE(ok_response);
break;
}
case PROT_EOF_PACKET:{
MYSQLND_PACKET_EOF * ok_response = conn->payload_decoder_factory->m.get_eof_packet(conn->payload_decoder_factory, FALSE);
if (!ok_response) {
SET_OOM_ERROR(conn->error_info);
break;
}
if (FAIL == (ret = PACKET_READ(ok_response))) {
SET_CLIENT_ERROR(conn->error_info, CR_MALFORMED_PACKET, UNKNOWN_SQLSTATE,
"Malformed packet");
if (!silent) {
DBG_ERR_FMT("Error while reading %s's EOF packet", mysqlnd_command_to_text[command]);
php_error_docref(NULL, E_WARNING, "Error while reading %s's EOF packet. PID=%d",
mysqlnd_command_to_text[command], getpid());
}
} else if (0xFF == ok_response->field_count) {
/* The server signalled error. Set the error */
SET_CLIENT_ERROR(conn->error_info, ok_response->error_no, ok_response->sqlstate, ok_response->error);
UPSERT_STATUS_SET_AFFECTED_ROWS_TO_ERROR(conn->upsert_status);
} else if (0xFE != ok_response->field_count) {
SET_CLIENT_ERROR(conn->error_info, CR_MALFORMED_PACKET, UNKNOWN_SQLSTATE, "Malformed packet");
if (!silent) {
DBG_ERR_FMT("EOF packet expected, field count wasn't 0xFE but 0x%2X", ok_response->field_count);
php_error_docref(NULL, E_WARNING, "EOF packet expected, field count wasn't 0xFE but 0x%2X",
ok_response->field_count);
}
} else {
DBG_INF_FMT("OK from server");
}
PACKET_FREE(ok_response);
break;
}
default:
SET_CLIENT_ERROR(conn->error_info, CR_MALFORMED_PACKET, UNKNOWN_SQLSTATE, "Malformed packet");
php_error_docref(NULL, E_ERROR, "Wrong response packet %u passed to the function", ok_packet);
break;
}
DBG_INF(ret == PASS ? "PASS":"FAIL");
DBG_RETURN(ret);
}
/* }}} */
/* {{{ mysqlnd_conn_data::set_server_option */
static enum_func_status
MYSQLND_METHOD(mysqlnd_conn_data, set_server_option)(MYSQLND_CONN_DATA * const conn, enum_mysqlnd_server_option option)
{
const size_t this_func = STRUCT_OFFSET(struct st_mysqlnd_conn_data_methods, set_server_option);
enum_func_status ret = FAIL;
DBG_ENTER("mysqlnd_conn_data::set_server_option");
if (PASS == conn->m->local_tx_start(conn, this_func)) {
struct st_mysqlnd_protocol_command * command = conn->command_factory(COM_SET_OPTION, conn, option);
if (command) {
ret = command->run(command);
command->free_command(command);
}
conn->m->local_tx_end(conn, this_func, ret);
}
DBG_RETURN(ret);
}
/* }}} */
/* {{{ mysqlnd_conn_data::restart_psession */
static enum_func_status
MYSQLND_METHOD(mysqlnd_conn_data, restart_psession)(MYSQLND_CONN_DATA * conn)
{
DBG_ENTER("mysqlnd_conn_data::restart_psession");
MYSQLND_INC_CONN_STATISTIC(conn->stats, STAT_CONNECT_REUSED);
/* Free here what should not be seen by the next script */
if (conn->last_message) {
mnd_pefree(conn->last_message, conn->persistent);
conn->last_message = NULL;
}
DBG_RETURN(PASS);
}
/* }}} */
/* {{{ mysqlnd_conn_data::end_psession */
static enum_func_status
MYSQLND_METHOD(mysqlnd_conn_data, end_psession)(MYSQLND_CONN_DATA * conn)
{
DBG_ENTER("mysqlnd_conn_data::end_psession");
DBG_RETURN(PASS);
}
/* }}} */
/* {{{ mysqlnd_switch_to_ssl_if_needed */
static enum_func_status
mysqlnd_switch_to_ssl_if_needed(
MYSQLND_CONN_DATA * conn,
const MYSQLND_PACKET_GREET * const greet_packet,
const MYSQLND_SESSION_OPTIONS * const session_options,
zend_ulong mysql_flags)
{
enum_func_status ret = FAIL;
const MYSQLND_CHARSET * charset;
unsigned int charset_no;
DBG_ENTER("mysqlnd_switch_to_ssl_if_needed");
if (session_options->charset_name && (charset = mysqlnd_find_charset_name(session_options->charset_name))) {
charset_no = charset->nr;
} else {
charset_no = greet_packet->charset_no;
}
{
size_t client_capabilities = mysql_flags;
size_t server_capabilities = greet_packet->server_capabilities;
struct st_mysqlnd_protocol_command * command = conn->command_factory(COM_ENABLE_SSL, conn, client_capabilities, server_capabilities, charset_no);
if (command) {
ret = command->run(command);
command->free_command(command);
}
}
DBG_RETURN(ret);
}
/* }}} */
/* {{{ mysqlnd_conn_data::fetch_auth_plugin_by_name */
static struct st_mysqlnd_authentication_plugin *
MYSQLND_METHOD(mysqlnd_conn_data, fetch_auth_plugin_by_name)(const char * const requested_protocol)
{
struct st_mysqlnd_authentication_plugin * auth_plugin;
char * plugin_name = NULL;
DBG_ENTER("mysqlnd_conn_data::fetch_auth_plugin_by_name");
mnd_sprintf(&plugin_name, 0, "auth_plugin_%s", requested_protocol);
DBG_INF_FMT("looking for %s auth plugin", plugin_name);
auth_plugin = mysqlnd_plugin_find(plugin_name);
mnd_sprintf_free(plugin_name);
DBG_RETURN(auth_plugin);
}
/* }}} */
/* {{{ mysqlnd_run_authentication */
static enum_func_status
mysqlnd_run_authentication(
MYSQLND_CONN_DATA * conn,
const char * const user,
const char * const passwd,
const size_t passwd_len,
const char * const db,
const size_t db_len,
const zend_uchar * const auth_plugin_data,
const size_t auth_plugin_data_len,
const char * const auth_protocol,
unsigned int charset_no,
const MYSQLND_SESSION_OPTIONS * const session_options,
zend_ulong mysql_flags,
zend_bool silent,
zend_bool is_change_user
)
{
enum_func_status ret = FAIL;
zend_bool first_call = TRUE;
char * switch_to_auth_protocol = NULL;
size_t switch_to_auth_protocol_len = 0;
char * requested_protocol = NULL;
zend_uchar * plugin_data;
size_t plugin_data_len;
DBG_ENTER("mysqlnd_run_authentication");
plugin_data_len = auth_plugin_data_len;
plugin_data = mnd_emalloc(plugin_data_len + 1);
if (!plugin_data) {
goto end;
}
memcpy(plugin_data, auth_plugin_data, plugin_data_len);
plugin_data[plugin_data_len] = '\0';
requested_protocol = mnd_pestrdup(auth_protocol? auth_protocol : MYSQLND_DEFAULT_AUTH_PROTOCOL, FALSE);
if (!requested_protocol) {
goto end;
}
do {
struct st_mysqlnd_authentication_plugin * auth_plugin = conn->m->fetch_auth_plugin_by_name(requested_protocol);
if (!auth_plugin) {
php_error_docref(NULL, E_WARNING, "The server requested authentication method unknown to the client [%s]", requested_protocol);
SET_CLIENT_ERROR(conn->error_info, CR_NOT_IMPLEMENTED, UNKNOWN_SQLSTATE, "The server requested authentication method unknown to the client");
goto end;
}
DBG_INF("plugin found");
{
zend_uchar * switch_to_auth_protocol_data = NULL;
size_t switch_to_auth_protocol_data_len = 0;
zend_uchar * scrambled_data = NULL;
size_t scrambled_data_len = 0;
switch_to_auth_protocol = NULL;
switch_to_auth_protocol_len = 0;
if (conn->auth_plugin_data) {
mnd_pefree(conn->auth_plugin_data, conn->persistent);
conn->auth_plugin_data = NULL;
}
conn->auth_plugin_data_len = plugin_data_len;
conn->auth_plugin_data = mnd_pemalloc(conn->auth_plugin_data_len, conn->persistent);
if (!conn->auth_plugin_data) {
SET_OOM_ERROR(conn->error_info);
goto end;
}
memcpy(conn->auth_plugin_data, plugin_data, plugin_data_len);
DBG_INF_FMT("salt(%d)=[%.*s]", plugin_data_len, plugin_data_len, plugin_data);
/* The data should be allocated with malloc() */
scrambled_data =
auth_plugin->methods.get_auth_data(NULL, &scrambled_data_len, conn, user, passwd, passwd_len,
plugin_data, plugin_data_len, session_options,
&conn->net->data->options, mysql_flags);
if (conn->error_info->error_no) {
goto end;
}
if (FALSE == is_change_user) {
ret = mysqlnd_auth_handshake(conn, user, passwd, passwd_len, db, db_len, session_options, mysql_flags,
charset_no,
first_call,
requested_protocol,
scrambled_data, scrambled_data_len,
&switch_to_auth_protocol, &switch_to_auth_protocol_len,
&switch_to_auth_protocol_data, &switch_to_auth_protocol_data_len
);
} else {
ret = mysqlnd_auth_change_user(conn, user, strlen(user), passwd, passwd_len, db, db_len, silent,
first_call,
requested_protocol,
scrambled_data, scrambled_data_len,
&switch_to_auth_protocol, &switch_to_auth_protocol_len,
&switch_to_auth_protocol_data, &switch_to_auth_protocol_data_len
);
}
first_call = FALSE;
free(scrambled_data);
DBG_INF_FMT("switch_to_auth_protocol=%s", switch_to_auth_protocol? switch_to_auth_protocol:"n/a");
if (requested_protocol && switch_to_auth_protocol) {
mnd_efree(requested_protocol);
requested_protocol = switch_to_auth_protocol;
}
if (plugin_data) {
mnd_efree(plugin_data);
}
plugin_data_len = switch_to_auth_protocol_data_len;
plugin_data = switch_to_auth_protocol_data;
}
DBG_INF_FMT("conn->error_info->error_no = %d", conn->error_info->error_no);
} while (ret == FAIL && conn->error_info->error_no == 0 && switch_to_auth_protocol != NULL);
if (ret == PASS) {
DBG_INF_FMT("saving requested_protocol=%s", requested_protocol);
conn->m->set_client_option(conn, MYSQLND_OPT_AUTH_PROTOCOL, requested_protocol);
}
end:
if (plugin_data) {
mnd_efree(plugin_data);
}
if (requested_protocol) {
mnd_efree(requested_protocol);
}
DBG_RETURN(ret);
}
/* }}} */
/* {{{ mysqlnd_connect_run_authentication */
static enum_func_status
mysqlnd_connect_run_authentication(
MYSQLND_CONN_DATA * conn,
const char * const user,
const char * const passwd,
const char * const db,
size_t db_len,
size_t passwd_len,
const MYSQLND_PACKET_GREET * const greet_packet,
const MYSQLND_SESSION_OPTIONS * const session_options,
zend_ulong mysql_flags
)
{
enum_func_status ret = FAIL;
DBG_ENTER("mysqlnd_connect_run_authentication");
ret = mysqlnd_switch_to_ssl_if_needed(conn, greet_packet, session_options, mysql_flags);
if (PASS == ret) {
ret = mysqlnd_run_authentication(conn, user, passwd, passwd_len, db, db_len,
greet_packet->auth_plugin_data, greet_packet->auth_plugin_data_len, greet_packet->auth_protocol,
greet_packet->charset_no, session_options, mysql_flags, FALSE /*silent*/, FALSE/*is_change*/);
}
DBG_RETURN(ret);
}
/* }}} */
/* {{{ mysqlnd_conn_data::execute_init_commands */
static enum_func_status
MYSQLND_METHOD(mysqlnd_conn_data, execute_init_commands)(MYSQLND_CONN_DATA * conn)
{
enum_func_status ret = PASS;
DBG_ENTER("mysqlnd_conn_data::execute_init_commands");
if (conn->options->init_commands) {
unsigned int current_command = 0;
for (; current_command < conn->options->num_commands; ++current_command) {
const char * const command = conn->options->init_commands[current_command];
if (command) {
MYSQLND_INC_CONN_STATISTIC(conn->stats, STAT_INIT_COMMAND_EXECUTED_COUNT);
if (PASS != conn->m->query(conn, command, strlen(command))) {
MYSQLND_INC_CONN_STATISTIC(conn->stats, STAT_INIT_COMMAND_FAILED_COUNT);
ret = FAIL;
break;
}
if (conn->last_query_type == QUERY_SELECT) {
MYSQLND_RES * result = conn->m->use_result(conn, 0);
if (result) {
result->m.free_result(result, TRUE);
}
}
}
}
}
DBG_RETURN(ret);
}
/* }}} */
/* {{{ mysqlnd_conn_data::get_updated_connect_flags */
static unsigned int
MYSQLND_METHOD(mysqlnd_conn_data, get_updated_connect_flags)(MYSQLND_CONN_DATA * conn, unsigned int mysql_flags)
{
MYSQLND_NET * net = conn->net;
DBG_ENTER("mysqlnd_conn_data::get_updated_connect_flags");
/* we allow load data local infile by default */
mysql_flags |= MYSQLND_CAPABILITIES;
mysql_flags |= conn->options->flags; /* use the flags from set_client_option() */
if (PG(open_basedir) && strlen(PG(open_basedir))) {
mysql_flags ^= CLIENT_LOCAL_FILES;
}
#ifndef MYSQLND_COMPRESSION_ENABLED
if (mysql_flags & CLIENT_COMPRESS) {
mysql_flags &= ~CLIENT_COMPRESS;
}
#else
if (net && net->data->options.flags & MYSQLND_NET_FLAG_USE_COMPRESSION) {
mysql_flags |= CLIENT_COMPRESS;
}
#endif
#ifndef MYSQLND_SSL_SUPPORTED
if (mysql_flags & CLIENT_SSL) {
mysql_flags &= ~CLIENT_SSL;
}
#else
if (net && (net->data->options.ssl_key || net->data->options.ssl_cert ||
net->data->options.ssl_ca || net->data->options.ssl_capath || net->data->options.ssl_cipher))
{
mysql_flags |= CLIENT_SSL;
}
#endif
DBG_RETURN(mysql_flags);
}
/* }}} */
/* {{{ mysqlnd_conn_data::connect_handshake */
static enum_func_status
MYSQLND_METHOD(mysqlnd_conn_data, connect_handshake)(MYSQLND_CONN_DATA * conn,
const char * const host, const char * const user,
const char * const passwd, const unsigned int passwd_len,
const char * const db, const unsigned int db_len,
const unsigned int mysql_flags)
{
MYSQLND_PACKET_GREET * greet_packet;
MYSQLND_NET * net = conn->net;
DBG_ENTER("mysqlnd_conn_data::connect_handshake");
greet_packet = conn->payload_decoder_factory->m.get_greet_packet(conn->payload_decoder_factory, FALSE);
if (!greet_packet) {
SET_OOM_ERROR(conn->error_info);
DBG_RETURN(FAIL); /* OOM */
}
if (FAIL == net->data->m.connect_ex(conn->net, conn->scheme, conn->scheme_len, conn->persistent,
conn->stats, conn->error_info))
{
goto err;
}
DBG_INF_FMT("stream=%p", net->data->m.get_stream(net));
if (FAIL == PACKET_READ(greet_packet)) {
DBG_ERR("Error while reading greeting packet");
php_error_docref(NULL, E_WARNING, "Error while reading greeting packet. PID=%d", getpid());
goto err;
} else if (greet_packet->error_no) {
DBG_ERR_FMT("errorno=%u error=%s", greet_packet->error_no, greet_packet->error);
SET_CLIENT_ERROR(conn->error_info, greet_packet->error_no, greet_packet->sqlstate, greet_packet->error);
goto err;
} else if (greet_packet->pre41) {
DBG_ERR_FMT("Connecting to 3.22, 3.23 & 4.0 is not supported. Server is %-.32s", greet_packet->server_version);
php_error_docref(NULL, E_WARNING, "Connecting to 3.22, 3.23 & 4.0 "
" is not supported. Server is %-.32s", greet_packet->server_version);
SET_CLIENT_ERROR(conn->error_info, CR_NOT_IMPLEMENTED, UNKNOWN_SQLSTATE,
"Connecting to 3.22, 3.23 & 4.0 servers is not supported");
goto err;
}
conn->thread_id = greet_packet->thread_id;
conn->protocol_version = greet_packet->protocol_version;
conn->server_version = mnd_pestrdup(greet_packet->server_version, conn->persistent);
conn->greet_charset = mysqlnd_find_charset_nr(greet_packet->charset_no);
if (!conn->greet_charset) {
php_error_docref(NULL, E_WARNING,
"Server sent charset (%d) unknown to the client. Please, report to the developers", greet_packet->charset_no);
SET_CLIENT_ERROR(conn->error_info, CR_NOT_IMPLEMENTED, UNKNOWN_SQLSTATE,
"Server sent charset unknown to the client. Please, report to the developers");
goto err;
}
conn->server_capabilities = greet_packet->server_capabilities;
if (FAIL == mysqlnd_connect_run_authentication(conn, user, passwd, db, db_len, (size_t) passwd_len,
greet_packet, conn->options, mysql_flags))
{
goto err;
}
UPSERT_STATUS_RESET(conn->upsert_status);
conn->upsert_status->warning_count = 0;
conn->upsert_status->server_status = greet_packet->server_status;
conn->upsert_status->affected_rows = 0;
PACKET_FREE(greet_packet);
DBG_RETURN(PASS);
err:
conn->server_capabilities = 0;
PACKET_FREE(greet_packet);
DBG_RETURN(FAIL);
}
/* }}} */
/* {{{ mysqlnd_conn_data::connect */
static enum_func_status
MYSQLND_METHOD(mysqlnd_conn_data, connect)(MYSQLND_CONN_DATA * conn,
const char *host, const char *user,
const char *passwd, unsigned int passwd_len,
const char *db, unsigned int db_len,
unsigned int port,
const char *socket_or_pipe,
unsigned int mysql_flags
)
{
const size_t this_func = STRUCT_OFFSET(struct st_mysqlnd_conn_data_methods, connect);
size_t host_len;
zend_bool unix_socket = FALSE;
zend_bool named_pipe = FALSE;
zend_bool reconnect = FALSE;
zend_bool saved_compression = FALSE;
zend_bool local_tx_started = FALSE;
MYSQLND_NET * net = conn->net;
DBG_ENTER("mysqlnd_conn_data::connect");
DBG_INF_FMT("conn=%p", conn);
if (PASS != conn->m->local_tx_start(conn, this_func)) {
goto err;
}
local_tx_started = TRUE;
SET_EMPTY_ERROR(conn->error_info);
UPSERT_STATUS_SET_AFFECTED_ROWS_TO_ERROR(conn->upsert_status);
DBG_INF_FMT("host=%s user=%s db=%s port=%u flags=%u persistent=%u state=%u",
host?host:"", user?user:"", db?db:"", port, mysql_flags,
conn? conn->persistent:0, conn? CONN_GET_STATE(conn):-1);
if (CONN_GET_STATE(conn) > CONN_ALLOCED && CONN_GET_STATE(conn) ) {
DBG_INF("Connecting on a connected handle.");
if (CONN_GET_STATE(conn) < CONN_QUIT_SENT) {
MYSQLND_INC_CONN_STATISTIC(conn->stats, STAT_CLOSE_IMPLICIT);
reconnect = TRUE;
conn->m->send_close(conn);
}
conn->m->free_contents(conn);
MYSQLND_DEC_CONN_STATISTIC(conn->stats, STAT_OPENED_CONNECTIONS);
if (conn->persistent) {
MYSQLND_DEC_CONN_STATISTIC(conn->stats, STAT_OPENED_PERSISTENT_CONNECTIONS);
}
/* Now reconnect using the same handle */
if (net->data->compressed) {
/*
we need to save the state. As we will re-connect, net->compressed should be off, or
we will look for a compression header as part of the greet message, but there will
be none.
*/
saved_compression = TRUE;
net->data->compressed = FALSE;
}
if (net->data->ssl) {
net->data->ssl = FALSE;
}
} else {
unsigned int max_allowed_size = MYSQLND_ASSEMBLED_PACKET_MAX_SIZE;
conn->m->set_client_option(conn, MYSQLND_OPT_MAX_ALLOWED_PACKET, (char *)&max_allowed_size);
}
if (!host || !host[0]) {
host = "localhost";
}
if (!user) {
DBG_INF_FMT("no user given, using empty string");
user = "";
}
if (!passwd) {
DBG_INF_FMT("no password given, using empty string");
passwd = "";
passwd_len = 0;
}
if (!db) {
DBG_INF_FMT("no db given, using empty string");
db = "";
db_len = 0;
} else {
mysql_flags |= CLIENT_CONNECT_WITH_DB;
}
host_len = strlen(host);
{
char * transport = NULL;
int transport_len;
#ifndef PHP_WIN32
if (host_len == sizeof("localhost") - 1 && !strncasecmp(host, "localhost", host_len)) {
DBG_INF_FMT("socket=%s", socket_or_pipe? socket_or_pipe:"n/a");
if (!socket_or_pipe) {
socket_or_pipe = "/tmp/mysql.sock";
}
transport_len = mnd_sprintf(&transport, 0, "unix://%s", socket_or_pipe);
unix_socket = TRUE;
#else
if (host_len == sizeof(".") - 1 && host[0] == '.') {
/* named pipe in socket */
if (!socket_or_pipe) {
socket_or_pipe = "\\\\.\\pipe\\MySQL";
}
transport_len = mnd_sprintf(&transport, 0, "pipe://%s", socket_or_pipe);
named_pipe = TRUE;
#endif
} else {
if (!port) {
port = 3306;
}
transport_len = mnd_sprintf(&transport, 0, "tcp://%s:%u", host, port);
}
if (!transport) {
SET_OOM_ERROR(conn->error_info);
goto err; /* OOM */
}
DBG_INF_FMT("transport=%s conn->scheme=%s", transport, conn->scheme);
conn->scheme = mnd_pestrndup(transport, transport_len, conn->persistent);
conn->scheme_len = transport_len;
mnd_sprintf_free(transport);
transport = NULL;
if (!conn->scheme) {
goto err; /* OOM */
}
}
mysql_flags = conn->m->get_updated_connect_flags(conn, mysql_flags);
if (FAIL == conn->m->connect_handshake(conn, host, user, passwd, passwd_len, db, db_len, mysql_flags)) {
goto err;
}
{
CONN_SET_STATE(conn, CONN_READY);
if (saved_compression) {
net->data->compressed = TRUE;
}
/*
If a connect on a existing handle is performed and mysql_flags is
passed which doesn't CLIENT_COMPRESS, then we need to overwrite the value
which we set based on saved_compression.
*/
net->data->compressed = mysql_flags & CLIENT_COMPRESS? TRUE:FALSE;
conn->user_len = strlen(user);
conn->user = mnd_pestrndup(user, conn->user_len, conn->persistent);
conn->passwd = mnd_pestrndup(passwd, passwd_len, conn->persistent);
conn->passwd_len = passwd_len;
conn->port = port;
conn->connect_or_select_db = mnd_pestrndup(db, db_len, conn->persistent);
conn->connect_or_select_db_len = db_len;
if (!conn->user || !conn->passwd || !conn->connect_or_select_db) {
SET_OOM_ERROR(conn->error_info);
goto err; /* OOM */
}
if (!unix_socket && !named_pipe) {
conn->host = mnd_pestrndup(host, host_len, conn->persistent);
if (!conn->host) {
SET_OOM_ERROR(conn->error_info);
goto err; /* OOM */
}