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mysqlnd_wireprotocol.h
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/* +----------------------------------------------------------------------+ | PHP Version 5 | +----------------------------------------------------------------------+ | Copyright (c) 2006-2016 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; HashTable *connect_attr; } 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; /* 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); unsigned long 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 TSRMLS_DC); 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 TSRMLS_DC); 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 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: * tab-width: 4 * c-basic-offset: 4 * End: * vim600: noet sw=4 ts=4 fdm=marker * vim<600: noet sw=4 ts=4 */
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