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File Name : mysqlnd_wireprotocol.h

/*
  +----------------------------------------------------------------------+
  | PHP Version 7                                                        |
  +----------------------------------------------------------------------+
  | Copyright (c) 2006-2017 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@php.net>                             |
  |          Ulf Wendel <uw@php.net>                                     |
  |          Georg Richter <georg@php.net>                               |
  +----------------------------------------------------------------------+
*/

#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	(zend_ulong) ~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)))
#define PACKET_READ(packet, conn)	((packet)->header.m->read_from_net((packet), (conn)))
#define PACKET_FREE(packet) \
	do { \
		DBG_INF_FMT("PACKET_FREE(%p)", packet); \
		if ((packet)) { \
			((packet)->header.m->free_mem((packet), FALSE)); \
		} \
	} 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);
	size_t				(*write_to_net)(void * packet, MYSQLND_CONN_DATA * conn);
	void				(*free_mem)(void *packet, zend_bool stack_allocation);
} 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;
	const char	*user;
	const zend_uchar	*auth_data;
	size_t		auth_data_len;
	const char	*db;
	const char	*auth_plugin_name;
	uint32_t	client_flags;
	uint32_t	max_packet_size;
	uint8_t		charset_no;
	/* Here the packet ends. This is user supplied data */
	zend_bool	send_auth_data;
	zend_bool	is_change_user_packet;
	zend_bool	silent;
	HashTable	*connect_attr;
	size_t		db_len;
} 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
	*/
	zend_ulong		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;
	zend_ulong	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;

/* Command packet */
typedef struct st_mysqlnd_packet_sha256_pk_request {
	MYSQLND_PACKET_HEADER			header;
} MYSQLND_PACKET_SHA256_PK_REQUEST;

typedef struct  st_mysqlnd_packet_sha256_pk_request_response {
	MYSQLND_PACKET_HEADER	header;
	zend_uchar 				*public_key;
	size_t					public_key_len;
} MYSQLND_PACKET_SHA256_PK_REQUEST_RESPONSE;

PHPAPI void php_mysqlnd_scramble(zend_uchar * const buffer, const zend_uchar * const scramble, const zend_uchar * const pass, size_t pass_len);

zend_ulong	php_mysqlnd_net_field_length(zend_uchar **packet);
zend_uchar *	php_mysqlnd_net_store_length(zend_uchar *packet, uint64_t length);
size_t			php_mysqlnd_net_store_length_size(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, const MYSQLND_FIELD * fields_metadata,
										 zend_bool as_int_or_float, MYSQLND_STATS * stats);

enum_func_status php_mysqlnd_rowp_read_text_protocol_zval(MYSQLND_MEMORY_POOL_CHUNK * row_buffer, zval * fields,
										 unsigned int field_count, const MYSQLND_FIELD * fields_metadata,
										 zend_bool as_int_or_float, MYSQLND_STATS * stats);

enum_func_status php_mysqlnd_rowp_read_text_protocol_c(MYSQLND_MEMORY_POOL_CHUNK * row_buffer, zval * fields,
										 unsigned int field_count, const MYSQLND_FIELD * fields_metadata,
										 zend_bool as_int_or_float, MYSQLND_STATS * stats);

PHPAPI MYSQLND_PROTOCOL * mysqlnd_protocol_init(zend_bool persistent);
PHPAPI void mysqlnd_protocol_free(MYSQLND_PROTOCOL * const protocol);

#endif /* MYSQLND_WIREPROTOCOL_H */

/*
 * Local variables:
 * tab-width: 4
 * c-basic-offset: 4
 * End:
 * vim600: noet sw=4 ts=4 fdm=marker
 * vim<600: noet sw=4 ts=4
 */

Name	Type	Size	Owner/Group	Permission	Last Modified	Actions
.	dir	-	root/linksafe	0755	2025-09-09 12:47:56
..	dir	-	root/linksafe	0755	2025-09-09 12:54:43
config-win.h	file	3.23 KB	root/linksafe	0644	2025-07-09 07:36:38
mysql_float_to_double.h	file	2.08 KB	root/linksafe	0644	2025-07-09 07:36:38
mysqlnd.h	file	15.85 KB	root/linksafe	0644	2025-07-09 07:36:38
mysqlnd_alloc.h	file	5.62 KB	root/linksafe	0644	2025-07-09 07:36:38
mysqlnd_block_alloc.h	file	1.62 KB	root/linksafe	0644	2025-07-09 07:36:38
mysqlnd_charset.h	file	2.35 KB	root/linksafe	0644	2025-07-09 07:36:38
mysqlnd_debug.h	file	9.72 KB	root/linksafe	0644	2025-07-09 07:36:38
mysqlnd_enum_n_def.h	file	19.65 KB	root/linksafe	0644	2025-07-09 07:36:38
mysqlnd_ext_plugin.h	file	4.83 KB	root/linksafe	0644	2025-07-09 07:36:38
mysqlnd_libmysql_compat.h	file	7.48 KB	root/linksafe	0644	2025-07-09 07:36:38
mysqlnd_net.h	file	1.68 KB	root/linksafe	0644	2025-07-09 07:36:38
mysqlnd_portability.h	file	16.71 KB	root/linksafe	0644	2025-07-09 07:36:38
mysqlnd_priv.h	file	8.01 KB	root/linksafe	0644	2025-07-09 07:36:38
mysqlnd_result.h	file	2.03 KB	root/linksafe	0644	2025-07-09 07:36:38
mysqlnd_result_meta.h	file	1.78 KB	root/linksafe	0644	2025-07-09 07:36:38
mysqlnd_reverse_api.h	file	1.96 KB	root/linksafe	0644	2025-07-09 07:36:38
mysqlnd_statistics.h	file	7.68 KB	root/linksafe	0644	2025-07-09 07:36:38
mysqlnd_structs.h	file	54.19 KB	root/linksafe	0644	2025-07-09 07:36:38
mysqlnd_wireprotocol.h	file	10.08 KB	root/linksafe	0644	2025-07-09 07:36:38
php_mysqlnd.h	file	1.55 KB	root/linksafe	0644	2025-07-09 07:36:38

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