root/mysqlnd/mysqlnd_wireprotocol.h
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/*
+----------------------------------------------------------------------+
| PHP Version 5 |
+----------------------------------------------------------------------+
| Copyright (c) 2006-2012 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> |
+----------------------------------------------------------------------+
*/
/* $Id$ */
#ifndef MYSQLND_WIREPROTOCOL_H
#define MYSQLND_WIREPROTOCOL_H
#include "mysqlnd_net.h"
#define MYSQLND_HEADER_SIZE 4
#define COMPRESSED_HEADER_SIZE 3
#define MYSQLND_NULL_LENGTH (unsigned long) ~0
/* Used in mysqlnd_debug.c */
PHPAPI extern const char mysqlnd_read_header_name[];
PHPAPI extern const char mysqlnd_read_body_name[];
/* Packet handling */
#define PACKET_WRITE(packet, conn) ((packet)->header.m->write_to_net((packet), (conn) TSRMLS_CC))
#define PACKET_READ(packet, conn) ((packet)->header.m->read_from_net((packet), (conn) TSRMLS_CC))
#define PACKET_FREE(packet) \
do { \
DBG_INF_FMT("PACKET_FREE(%p)", packet); \
if ((packet)) { \
((packet)->header.m->free_mem((packet), FALSE TSRMLS_CC)); \
} \
} while (0);
PHPAPI extern const char * const mysqlnd_command_to_text[COM_END];
/* Low-level extraction functionality */
typedef struct st_mysqlnd_packet_methods {
size_t struct_size;
enum_func_status (*read_from_net)(void * packet, MYSQLND_CONN_DATA * conn TSRMLS_DC);
size_t (*write_to_net)(void * packet, MYSQLND_CONN_DATA * conn TSRMLS_DC);
void (*free_mem)(void *packet, zend_bool stack_allocation TSRMLS_DC);
} mysqlnd_packet_methods;
typedef struct st_mysqlnd_packet_header {
size_t size;
mysqlnd_packet_methods *m;
zend_uchar packet_no;
zend_bool persistent;
} MYSQLND_PACKET_HEADER;
/* Server greets the client */
typedef struct st_mysqlnd_packet_greet {
MYSQLND_PACKET_HEADER header;
uint8_t protocol_version;
char *server_version;
uint32_t thread_id;
zend_uchar intern_auth_plugin_data[SCRAMBLE_LENGTH];
zend_uchar * auth_plugin_data;
size_t auth_plugin_data_len;
/* 1 byte pad */
uint32_t server_capabilities;
uint8_t charset_no;
uint16_t server_status;
/* 13 byte pad, in 5.5 first 2 bytes are more capabilities followed by 1 byte scramble_length */
zend_bool pre41;
/* If error packet, we use these */
char error[MYSQLND_ERRMSG_SIZE+1];
char sqlstate[MYSQLND_SQLSTATE_LENGTH + 1];
unsigned int error_no;
char *auth_protocol;
} MYSQLND_PACKET_GREET;
/* Client authenticates */
typedef struct st_mysqlnd_packet_auth {
MYSQLND_PACKET_HEADER header;
uint32_t client_flags;
uint32_t max_packet_size;
uint8_t charset_no;
const char *user;
const zend_uchar *auth_data;
size_t auth_data_len;
const char *db;
const char *auth_plugin_name;
/* Here the packet ends. This is user supplied data */
size_t db_len;
zend_bool send_auth_data;
zend_bool is_change_user_packet;
zend_bool silent;
} MYSQLND_PACKET_AUTH;
/* Auth response packet */
typedef struct st_mysqlnd_packet_auth_response {
MYSQLND_PACKET_HEADER header;
uint8_t response_code;
uint64_t affected_rows;
uint64_t last_insert_id;
uint16_t server_status;
uint16_t warning_count;
char *message;
size_t message_len;
/* If error packet, we use these */
char error[MYSQLND_ERRMSG_SIZE+1];
char sqlstate[MYSQLND_SQLSTATE_LENGTH + 1];
unsigned int error_no;
char *new_auth_protocol;
size_t new_auth_protocol_len;
zend_uchar *new_auth_protocol_data;
size_t new_auth_protocol_data_len;
} MYSQLND_PACKET_AUTH_RESPONSE;
/* Auth response packet */
typedef struct st_mysqlnd_packet_change_auth_response {
MYSQLND_PACKET_HEADER header;
const zend_uchar *auth_data;
size_t auth_data_len;
} MYSQLND_PACKET_CHANGE_AUTH_RESPONSE;
/* OK packet */
typedef struct st_mysqlnd_packet_ok {
MYSQLND_PACKET_HEADER header;
uint8_t field_count; /* always 0x0 */
uint64_t affected_rows;
uint64_t last_insert_id;
uint16_t server_status;
uint16_t warning_count;
char *message;
size_t message_len;
/* If error packet, we use these */
char error[MYSQLND_ERRMSG_SIZE+1];
char sqlstate[MYSQLND_SQLSTATE_LENGTH + 1];
unsigned int error_no;
} MYSQLND_PACKET_OK;
/* Command packet */
typedef struct st_mysqlnd_packet_command {
MYSQLND_PACKET_HEADER header;
enum php_mysqlnd_server_command command;
const zend_uchar *argument;
size_t arg_len;
} MYSQLND_PACKET_COMMAND;
/* EOF packet */
typedef struct st_mysqlnd_packet_eof {
MYSQLND_PACKET_HEADER header;
uint8_t field_count; /* 0xFE */
uint16_t warning_count;
uint16_t server_status;
/* If error packet, we use these */
char error[MYSQLND_ERRMSG_SIZE+1];
char sqlstate[MYSQLND_SQLSTATE_LENGTH + 1];
unsigned int error_no;
} MYSQLND_PACKET_EOF;
/* EOF packet */
/* Result Set header*/
typedef struct st_mysqlnd_packet_rset_header {
MYSQLND_PACKET_HEADER header;
/*
0x00 => ok
~0 => LOAD DATA LOCAL
error_no != 0 => error
others => result set -> Read res_field packets up to field_count
*/
unsigned long field_count;
/*
These are filled if no SELECT query. For SELECT warning_count
and server status are in the last row packet, the EOF packet.
*/
uint16_t warning_count;
uint16_t server_status;
uint64_t affected_rows;
uint64_t last_insert_id;
/* This is for both LOAD DATA or info, when no result set */
char *info_or_local_file;
size_t info_or_local_file_len;
/* If error packet, we use these */
MYSQLND_ERROR_INFO error_info;
} MYSQLND_PACKET_RSET_HEADER;
/* Result set field packet */
typedef struct st_mysqlnd_packet_res_field {
MYSQLND_PACKET_HEADER header;
MYSQLND_FIELD *metadata;
/* For table definitions, empty for result sets */
zend_bool skip_parsing;
zend_bool stupid_list_fields_eof;
zend_bool persistent_alloc;
MYSQLND_ERROR_INFO error_info;
} MYSQLND_PACKET_RES_FIELD;
/* Row packet */
typedef struct st_mysqlnd_packet_row {
MYSQLND_PACKET_HEADER header;
zval **fields;
uint32_t field_count;
zend_bool eof;
/*
These are, of course, only for SELECT in the EOF packet,
which is detected by this packet
*/
uint16_t warning_count;
uint16_t server_status;
struct st_mysqlnd_memory_pool_chunk *row_buffer;
MYSQLND_MEMORY_POOL * result_set_memory_pool;
zend_bool skip_extraction;
zend_bool binary_protocol;
zend_bool persistent_alloc;
MYSQLND_FIELD *fields_metadata;
/* We need this to alloc bigger bufs in non-PS mode */
unsigned int bit_fields_count;
size_t bit_fields_total_len; /* trailing \0 not counted */
/* If error packet, we use these */
MYSQLND_ERROR_INFO error_info;
} MYSQLND_PACKET_ROW;
/* Statistics packet */
typedef struct st_mysqlnd_packet_stats {
MYSQLND_PACKET_HEADER header;
char *message;
/* message_len is not part of the packet*/
size_t message_len;
} MYSQLND_PACKET_STATS;
/* COM_PREPARE response packet */
typedef struct st_mysqlnd_packet_prepare_response {
MYSQLND_PACKET_HEADER header;
/* also known as field_count 0x00=OK , 0xFF=error */
unsigned char error_code;
unsigned long stmt_id;
unsigned int field_count;
unsigned int param_count;
unsigned int warning_count;
/* present in case of error */
MYSQLND_ERROR_INFO error_info;
} MYSQLND_PACKET_PREPARE_RESPONSE;
/* Statistics packet */
typedef struct st_mysqlnd_packet_chg_user_resp {
MYSQLND_PACKET_HEADER header;
uint32_t response_code;
/* message_len is not part of the packet*/
uint16_t server_capabilities;
/* If error packet, we use these */
MYSQLND_ERROR_INFO error_info;
zend_bool server_asked_323_auth;
char *new_auth_protocol;
size_t new_auth_protocol_len;
zend_uchar *new_auth_protocol_data;
size_t new_auth_protocol_data_len;
} MYSQLND_PACKET_CHG_USER_RESPONSE;
PHPAPI void php_mysqlnd_scramble(zend_uchar * const buffer, const zend_uchar * const scramble, const zend_uchar * const pass, size_t pass_len);
unsigned long php_mysqlnd_net_field_length(zend_uchar **packet);
zend_uchar * php_mysqlnd_net_store_length(zend_uchar *packet, uint64_t length);
PHPAPI const extern char * const mysqlnd_empty_string;
enum_func_status php_mysqlnd_rowp_read_binary_protocol(MYSQLND_MEMORY_POOL_CHUNK * row_buffer, zval ** fields,
unsigned int field_count, MYSQLND_FIELD *fields_metadata,
zend_bool as_unicode, zend_bool as_int_or_float,
MYSQLND_STATS * stats TSRMLS_DC);
enum_func_status php_mysqlnd_rowp_read_text_protocol(MYSQLND_MEMORY_POOL_CHUNK * row_buffer, zval ** fields,
unsigned int field_count, MYSQLND_FIELD *fields_metadata,
zend_bool as_unicode, zend_bool as_int_or_float,
MYSQLND_STATS * stats TSRMLS_DC);
PHPAPI MYSQLND_PROTOCOL * mysqlnd_protocol_init(zend_bool persistent TSRMLS_DC);
PHPAPI void mysqlnd_protocol_free(MYSQLND_PROTOCOL * const protocol TSRMLS_DC);
#endif /* MYSQLND_WIREPROTOCOL_H */
/*
* Local variables:
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* c-basic-offset: 4
* End:
* vim600: noet sw=4 ts=4 fdm=marker
* vim<600: noet sw=4 ts=4
*/