/* {{{ mysqlnd_auth_change_user */
enum_func_status
mysqlnd_auth_change_user(MYSQLND_CONN_DATA * const conn,
const char * const user,
const size_t user_len,
const char * const passwd,
const size_t passwd_len,
const char * const db,
const size_t db_len,
const zend_bool silent,
zend_bool use_full_blown_auth_packet,
const char * const auth_protocol,
zend_uchar * auth_plugin_data,
size_t auth_plugin_data_len,
char ** switch_to_auth_protocol,
size_t * switch_to_auth_protocol_len,
zend_uchar ** switch_to_auth_protocol_data,
size_t * switch_to_auth_protocol_data_len
)
{
enum_func_status ret = FAIL;
const MYSQLND_CHARSET * old_cs = conn->charset;
MYSQLND_PACKET_CHG_USER_RESPONSE chg_user_resp;
DBG_ENTER("mysqlnd_auth_change_user");
conn->payload_decoder_factory->m.init_change_user_response_packet(&chg_user_resp);
if (use_full_blown_auth_packet != TRUE) {
MYSQLND_PACKET_CHANGE_AUTH_RESPONSE change_auth_resp_packet;
conn->payload_decoder_factory->m.init_change_auth_response_packet(&change_auth_resp_packet);
change_auth_resp_packet.auth_data = auth_plugin_data;
change_auth_resp_packet.auth_data_len = auth_plugin_data_len;
if (!PACKET_WRITE(conn, &change_auth_resp_packet)) {
SET_CONNECTION_STATE(&conn->state, CONN_QUIT_SENT);
SET_CLIENT_ERROR(conn->error_info, CR_SERVER_GONE_ERROR, UNKNOWN_SQLSTATE, mysqlnd_server_gone);
PACKET_FREE(&change_auth_resp_packet);
goto end;
}
PACKET_FREE(&change_auth_resp_packet);
} else {
MYSQLND_PACKET_AUTH auth_packet;
conn->payload_decoder_factory->m.init_auth_packet(&auth_packet);
auth_packet.is_change_user_packet = TRUE;
auth_packet.user = user;
auth_packet.db = db;
auth_packet.db_len = db_len;
auth_packet.silent = silent;
auth_packet.auth_data = auth_plugin_data;
auth_packet.auth_data_len = auth_plugin_data_len;
auth_packet.auth_plugin_name = auth_protocol;
if (conn->m->get_server_version(conn) >= 50123) {
auth_packet.charset_no = conn->charset->nr;
}
if (!PACKET_WRITE(conn, &auth_packet)) {
SET_CONNECTION_STATE(&conn->state, CONN_QUIT_SENT);
SET_CLIENT_ERROR(conn->error_info, CR_SERVER_GONE_ERROR, UNKNOWN_SQLSTATE, mysqlnd_server_gone);
PACKET_FREE(&auth_packet);
goto end;
}
PACKET_FREE(&auth_packet);
}
ret = PACKET_READ(conn, &chg_user_resp);
COPY_CLIENT_ERROR(conn->error_info, chg_user_resp.error_info);
if (0xFE == chg_user_resp.response_code) {
ret = FAIL;
if (!chg_user_resp.new_auth_protocol) {
DBG_ERR(mysqlnd_old_passwd);
SET_CLIENT_ERROR(conn->error_info, CR_UNKNOWN_ERROR, UNKNOWN_SQLSTATE, mysqlnd_old_passwd);
} else {
*switch_to_auth_protocol = mnd_pestrndup(chg_user_resp.new_auth_protocol, chg_user_resp.new_auth_protocol_len, FALSE);
*switch_to_auth_protocol_len = chg_user_resp.new_auth_protocol_len;
if (chg_user_resp.new_auth_protocol_data) {
*switch_to_auth_protocol_data_len = chg_user_resp.new_auth_protocol_data_len;
*switch_to_auth_protocol_data = mnd_emalloc(*switch_to_auth_protocol_data_len);
memcpy(*switch_to_auth_protocol_data, chg_user_resp.new_auth_protocol_data, *switch_to_auth_protocol_data_len);
} else {
*switch_to_auth_protocol_data = NULL;
*switch_to_auth_protocol_data_len = 0;
}
}
}
if (conn->error_info->error_no) {
ret = FAIL;
/*
COM_CHANGE_USER is broken in 5.1. At least in 5.1.15 and 5.1.14, 5.1.11 is immune.
bug#25371 mysql_change_user() triggers "packets out of sync"
When it gets fixed, there should be one more check here
*/
if (conn->m->get_server_version(conn) > 50113L &&conn->m->get_server_version(conn) < 50118L) {
MYSQLND_PACKET_OK redundant_error_packet;
conn->payload_decoder_factory->m.init_ok_packet(&redundant_error_packet);
PACKET_READ(conn, &redundant_error_packet);
PACKET_FREE(&redundant_error_packet);
DBG_INF_FMT("Server is %u, buggy, sends two ERR messages", conn->m->get_server_version(conn));
}
}
if (ret == PASS) {
char * tmp = NULL;
/* if we get conn->username as parameter and then we first free it, then estrndup it, we will crash */
tmp = mnd_pestrndup(user, user_len, conn->persistent);
if (conn->username.s) {
mnd_pefree(conn->username.s, conn->persistent);
}
conn->username.s = tmp;
tmp = mnd_pestrdup(passwd, conn->persistent);
if (conn->password.s) {
mnd_pefree(conn->password.s, conn->persistent);
}
conn->password.s = tmp;
if (conn->last_message.s) {
mnd_pefree(conn->last_message.s, conn->persistent);
conn->last_message.s = NULL;
}
UPSERT_STATUS_RESET(conn->upsert_status);
/* set charset for old servers */
if (conn->m->get_server_version(conn) < 50123) {
ret = conn->m->set_charset(conn, old_cs->name);
}
} else if (ret == FAIL && chg_user_resp.server_asked_323_auth == TRUE) {
/* old authentication with new server !*/
DBG_ERR(mysqlnd_old_passwd);
SET_CLIENT_ERROR(conn->error_info, CR_UNKNOWN_ERROR, UNKNOWN_SQLSTATE, mysqlnd_old_passwd);
}
end:
PACKET_FREE(&chg_user_resp);
DBG_RETURN(ret);
}
/* {{{ mysqlnd_command::handshake */
static enum_func_status
MYSQLND_METHOD(mysqlnd_command, handshake)(MYSQLND_CONN_DATA * const conn, const MYSQLND_CSTRING username, const MYSQLND_CSTRING password, const MYSQLND_CSTRING database, const size_t client_flags)
{
const char * const user = username.s;
const char * const passwd = password.s;
const size_t passwd_len = password.l;
const char * const db = database.s;
const size_t db_len = database.l;
const size_t mysql_flags = client_flags;
MYSQLND_PACKET_GREET greet_packet;
DBG_ENTER("mysqlnd_command::handshake");
DBG_INF_FMT("stream=%p", conn->vio->data->m.get_stream(conn->vio));
DBG_INF_FMT("[user=%s] [db=%s:%d] [flags=%llu]", user, db, db_len, mysql_flags);
conn->payload_decoder_factory->m.init_greet_packet(&greet_packet);
if (FAIL == PACKET_READ(conn, &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.authentication_plugin_data, greet_packet.auth_protocol,
greet_packet.charset_no, greet_packet.server_capabilities,
conn->options, mysql_flags))
{
goto err;
}
UPSERT_STATUS_RESET(conn->upsert_status);
UPSERT_STATUS_SET_SERVER_STATUS(conn->upsert_status, greet_packet.server_status);
PACKET_FREE(&greet_packet);
DBG_RETURN(PASS);
err:
conn->server_capabilities = 0;
PACKET_FREE(&greet_packet);
DBG_RETURN(FAIL);
}
/* {{{ mysqlnd_com_handshake_run */
static enum_func_status
mysqlnd_com_handshake_run(void *cmd)
{
struct st_mysqlnd_protocol_com_handshake_command * command = (struct st_mysqlnd_protocol_com_handshake_command *) cmd;
const char * user = command->context.user.s;
const char * passwd = command->context.passwd.s;
size_t passwd_len = command->context.passwd.l;
const char * db = command->context.database.s;
size_t db_len = command->context.database.l;
size_t mysql_flags = command->context.client_flags;
MYSQLND_CONN_DATA * conn = command->context.conn;
MYSQLND_PACKET_GREET * greet_packet;
DBG_ENTER("mysqlnd_conn_data::connect_handshake");
DBG_INF_FMT("stream=%p", conn->vio->data->m.get_stream(conn->vio));
DBG_INF_FMT("[user=%s] [db=%s:%d] [flags=%llu]", user, db, db_len, mysql_flags);
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 == 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->authentication_plugin_data, greet_packet->auth_protocol,
greet_packet->charset_no, greet_packet->server_capabilities,
conn->options, mysql_flags))
{
goto err;
}
UPSERT_STATUS_RESET(conn->upsert_status);
UPSERT_STATUS_SET_SERVER_STATUS(conn->upsert_status, greet_packet->server_status);
PACKET_FREE(greet_packet);
DBG_RETURN(PASS);
err:
conn->server_capabilities = 0;
PACKET_FREE(greet_packet);
DBG_RETURN(FAIL);
}
