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63791d055a
implies more memory copy. The old method is still available and can be used. It stays as default. Choosing the method is through a flag to mysqli_query()/mysqli_real_query() New mode can be forced with an INI setting, for all extensions that support this mode (ext/mysql and mysqli, because PDO due to it's architecture can't support it) The setting is mysqlnd.fetch_data_copy=[0|1]
337 lines
10 KiB
C
337 lines
10 KiB
C
/*
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+----------------------------------------------------------------------+
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| PHP Version 5 |
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+----------------------------------------------------------------------+
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| Copyright (c) 2006-2014 The PHP Group |
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+----------------------------------------------------------------------+
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| This source file is subject to version 3.01 of the PHP license, |
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| that is bundled with this package in the file LICENSE, and is |
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| available through the world-wide-web at the following url: |
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| http://www.php.net/license/3_01.txt |
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| If you did not receive a copy of the PHP license and are unable to |
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| obtain it through the world-wide-web, please send a note to |
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| license@php.net so we can mail you a copy immediately. |
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+----------------------------------------------------------------------+
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| Authors: Andrey Hristov <andrey@mysql.com> |
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| Ulf Wendel <uwendel@mysql.com> |
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| Georg Richter <georg@mysql.com> |
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+----------------------------------------------------------------------+
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*/
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/* $Id$ */
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#ifndef MYSQLND_WIREPROTOCOL_H
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#define MYSQLND_WIREPROTOCOL_H
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#include "mysqlnd_net.h"
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#define MYSQLND_HEADER_SIZE 4
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#define COMPRESSED_HEADER_SIZE 3
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#define MYSQLND_NULL_LENGTH (unsigned long) ~0
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/* Used in mysqlnd_debug.c */
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PHPAPI extern const char mysqlnd_read_header_name[];
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PHPAPI extern const char mysqlnd_read_body_name[];
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/* Packet handling */
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#define PACKET_WRITE(packet, conn) ((packet)->header.m->write_to_net((packet), (conn) TSRMLS_CC))
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#define PACKET_READ(packet, conn) ((packet)->header.m->read_from_net((packet), (conn) TSRMLS_CC))
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#define PACKET_FREE(packet) \
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do { \
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DBG_INF_FMT("PACKET_FREE(%p)", packet); \
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if ((packet)) { \
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((packet)->header.m->free_mem((packet), FALSE TSRMLS_CC)); \
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} \
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} while (0);
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PHPAPI extern const char * const mysqlnd_command_to_text[COM_END];
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/* Low-level extraction functionality */
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typedef struct st_mysqlnd_packet_methods {
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size_t struct_size;
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enum_func_status (*read_from_net)(void * packet, MYSQLND_CONN_DATA * conn TSRMLS_DC);
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size_t (*write_to_net)(void * packet, MYSQLND_CONN_DATA * conn TSRMLS_DC);
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void (*free_mem)(void *packet, zend_bool stack_allocation TSRMLS_DC);
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} mysqlnd_packet_methods;
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typedef struct st_mysqlnd_packet_header {
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size_t size;
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mysqlnd_packet_methods *m;
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zend_uchar packet_no;
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zend_bool persistent;
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} MYSQLND_PACKET_HEADER;
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/* Server greets the client */
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typedef struct st_mysqlnd_packet_greet {
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MYSQLND_PACKET_HEADER header;
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uint8_t protocol_version;
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char *server_version;
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uint32_t thread_id;
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zend_uchar intern_auth_plugin_data[SCRAMBLE_LENGTH];
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zend_uchar * auth_plugin_data;
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size_t auth_plugin_data_len;
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/* 1 byte pad */
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uint32_t server_capabilities;
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uint8_t charset_no;
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uint16_t server_status;
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/* 13 byte pad, in 5.5 first 2 bytes are more capabilities followed by 1 byte scramble_length */
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zend_bool pre41;
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/* If error packet, we use these */
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char error[MYSQLND_ERRMSG_SIZE+1];
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char sqlstate[MYSQLND_SQLSTATE_LENGTH + 1];
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unsigned int error_no;
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char *auth_protocol;
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} MYSQLND_PACKET_GREET;
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/* Client authenticates */
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typedef struct st_mysqlnd_packet_auth {
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MYSQLND_PACKET_HEADER header;
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uint32_t client_flags;
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uint32_t max_packet_size;
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uint8_t charset_no;
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const char *user;
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const zend_uchar *auth_data;
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size_t auth_data_len;
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const char *db;
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const char *auth_plugin_name;
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/* Here the packet ends. This is user supplied data */
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size_t db_len;
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zend_bool send_auth_data;
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zend_bool is_change_user_packet;
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zend_bool silent;
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HashTable *connect_attr;
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} MYSQLND_PACKET_AUTH;
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/* Auth response packet */
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typedef struct st_mysqlnd_packet_auth_response {
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MYSQLND_PACKET_HEADER header;
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uint8_t response_code;
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uint64_t affected_rows;
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uint64_t last_insert_id;
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uint16_t server_status;
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uint16_t warning_count;
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char *message;
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size_t message_len;
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/* If error packet, we use these */
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char error[MYSQLND_ERRMSG_SIZE+1];
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char sqlstate[MYSQLND_SQLSTATE_LENGTH + 1];
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unsigned int error_no;
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char *new_auth_protocol;
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size_t new_auth_protocol_len;
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zend_uchar *new_auth_protocol_data;
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size_t new_auth_protocol_data_len;
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} MYSQLND_PACKET_AUTH_RESPONSE;
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/* Auth response packet */
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typedef struct st_mysqlnd_packet_change_auth_response {
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MYSQLND_PACKET_HEADER header;
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const zend_uchar *auth_data;
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size_t auth_data_len;
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} MYSQLND_PACKET_CHANGE_AUTH_RESPONSE;
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/* OK packet */
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typedef struct st_mysqlnd_packet_ok {
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MYSQLND_PACKET_HEADER header;
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uint8_t field_count; /* always 0x0 */
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uint64_t affected_rows;
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uint64_t last_insert_id;
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uint16_t server_status;
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uint16_t warning_count;
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char *message;
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size_t message_len;
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/* If error packet, we use these */
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char error[MYSQLND_ERRMSG_SIZE+1];
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char sqlstate[MYSQLND_SQLSTATE_LENGTH + 1];
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unsigned int error_no;
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} MYSQLND_PACKET_OK;
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/* Command packet */
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typedef struct st_mysqlnd_packet_command {
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MYSQLND_PACKET_HEADER header;
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enum php_mysqlnd_server_command command;
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const zend_uchar *argument;
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size_t arg_len;
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} MYSQLND_PACKET_COMMAND;
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/* EOF packet */
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typedef struct st_mysqlnd_packet_eof {
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MYSQLND_PACKET_HEADER header;
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uint8_t field_count; /* 0xFE */
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uint16_t warning_count;
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uint16_t server_status;
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/* If error packet, we use these */
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char error[MYSQLND_ERRMSG_SIZE+1];
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char sqlstate[MYSQLND_SQLSTATE_LENGTH + 1];
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unsigned int error_no;
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} MYSQLND_PACKET_EOF;
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/* EOF packet */
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/* Result Set header*/
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typedef struct st_mysqlnd_packet_rset_header {
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MYSQLND_PACKET_HEADER header;
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/*
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0x00 => ok
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~0 => LOAD DATA LOCAL
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error_no != 0 => error
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others => result set -> Read res_field packets up to field_count
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*/
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unsigned long field_count;
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/*
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These are filled if no SELECT query. For SELECT warning_count
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and server status are in the last row packet, the EOF packet.
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*/
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uint16_t warning_count;
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uint16_t server_status;
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uint64_t affected_rows;
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uint64_t last_insert_id;
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/* This is for both LOAD DATA or info, when no result set */
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char *info_or_local_file;
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size_t info_or_local_file_len;
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/* If error packet, we use these */
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MYSQLND_ERROR_INFO error_info;
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} MYSQLND_PACKET_RSET_HEADER;
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/* Result set field packet */
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typedef struct st_mysqlnd_packet_res_field {
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MYSQLND_PACKET_HEADER header;
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MYSQLND_FIELD *metadata;
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/* For table definitions, empty for result sets */
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zend_bool skip_parsing;
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zend_bool stupid_list_fields_eof;
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zend_bool persistent_alloc;
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MYSQLND_ERROR_INFO error_info;
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} MYSQLND_PACKET_RES_FIELD;
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/* Row packet */
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typedef struct st_mysqlnd_packet_row {
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MYSQLND_PACKET_HEADER header;
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zval **fields;
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uint32_t field_count;
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zend_bool eof;
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/*
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These are, of course, only for SELECT in the EOF packet,
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which is detected by this packet
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*/
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uint16_t warning_count;
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uint16_t server_status;
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struct st_mysqlnd_memory_pool_chunk *row_buffer;
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MYSQLND_MEMORY_POOL * result_set_memory_pool;
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zend_bool skip_extraction;
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zend_bool binary_protocol;
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zend_bool persistent_alloc;
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MYSQLND_FIELD *fields_metadata;
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/* We need this to alloc bigger bufs in non-PS mode */
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unsigned int bit_fields_count;
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size_t bit_fields_total_len; /* trailing \0 not counted */
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/* If error packet, we use these */
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MYSQLND_ERROR_INFO error_info;
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} MYSQLND_PACKET_ROW;
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/* Statistics packet */
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typedef struct st_mysqlnd_packet_stats {
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MYSQLND_PACKET_HEADER header;
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char *message;
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/* message_len is not part of the packet*/
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size_t message_len;
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} MYSQLND_PACKET_STATS;
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/* COM_PREPARE response packet */
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typedef struct st_mysqlnd_packet_prepare_response {
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MYSQLND_PACKET_HEADER header;
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/* also known as field_count 0x00=OK , 0xFF=error */
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unsigned char error_code;
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unsigned long stmt_id;
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unsigned int field_count;
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unsigned int param_count;
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unsigned int warning_count;
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/* present in case of error */
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MYSQLND_ERROR_INFO error_info;
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} MYSQLND_PACKET_PREPARE_RESPONSE;
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/* Statistics packet */
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typedef struct st_mysqlnd_packet_chg_user_resp {
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MYSQLND_PACKET_HEADER header;
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uint32_t response_code;
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/* message_len is not part of the packet*/
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uint16_t server_capabilities;
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/* If error packet, we use these */
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MYSQLND_ERROR_INFO error_info;
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zend_bool server_asked_323_auth;
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char *new_auth_protocol;
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size_t new_auth_protocol_len;
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zend_uchar *new_auth_protocol_data;
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size_t new_auth_protocol_data_len;
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} MYSQLND_PACKET_CHG_USER_RESPONSE;
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/* Command packet */
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typedef struct st_mysqlnd_packet_sha256_pk_request {
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MYSQLND_PACKET_HEADER header;
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} MYSQLND_PACKET_SHA256_PK_REQUEST;
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typedef struct st_mysqlnd_packet_sha256_pk_request_response {
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MYSQLND_PACKET_HEADER header;
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zend_uchar *public_key;
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size_t public_key_len;
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} MYSQLND_PACKET_SHA256_PK_REQUEST_RESPONSE;
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PHPAPI void php_mysqlnd_scramble(zend_uchar * const buffer, const zend_uchar * const scramble, const zend_uchar * const pass, size_t pass_len);
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unsigned long php_mysqlnd_net_field_length(zend_uchar **packet);
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zend_uchar * php_mysqlnd_net_store_length(zend_uchar *packet, uint64_t length);
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size_t php_mysqlnd_net_store_length_size(uint64_t length);
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PHPAPI const extern char * const mysqlnd_empty_string;
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enum_func_status php_mysqlnd_rowp_read_binary_protocol(MYSQLND_MEMORY_POOL_CHUNK * row_buffer, zval ** fields,
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unsigned int field_count, const MYSQLND_FIELD * fields_metadata,
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zend_bool as_int_or_float, MYSQLND_STATS * stats TSRMLS_DC);
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enum_func_status php_mysqlnd_rowp_read_text_protocol_zval(MYSQLND_MEMORY_POOL_CHUNK * row_buffer, zval ** fields,
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unsigned int field_count, const MYSQLND_FIELD * fields_metadata,
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zend_bool as_int_or_float, MYSQLND_STATS * stats TSRMLS_DC);
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enum_func_status php_mysqlnd_rowp_read_text_protocol_c(MYSQLND_MEMORY_POOL_CHUNK * row_buffer, zval ** fields,
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unsigned int field_count, const MYSQLND_FIELD * fields_metadata,
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zend_bool as_int_or_float, MYSQLND_STATS * stats TSRMLS_DC);
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PHPAPI MYSQLND_PROTOCOL * mysqlnd_protocol_init(zend_bool persistent TSRMLS_DC);
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PHPAPI void mysqlnd_protocol_free(MYSQLND_PROTOCOL * const protocol TSRMLS_DC);
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#endif /* MYSQLND_WIREPROTOCOL_H */
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/*
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* Local variables:
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* tab-width: 4
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* c-basic-offset: 4
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* End:
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* vim600: noet sw=4 ts=4 fdm=marker
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* vim<600: noet sw=4 ts=4
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*/
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