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mysqlnd_wireprotocol.h
/* +----------------------------------------------------------------------+ | Copyright (c) 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: | | https://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> | +----------------------------------------------------------------------+ */ #ifndef MYSQLND_WIREPROTOCOL_H #define MYSQLND_WIREPROTOCOL_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(conn, packet) ((packet)->header.m->write_to_net((conn), (packet))) #define PACKET_READ(conn, packet) ((packet)->header.m->read_from_net((conn), (packet))) #define PACKET_FREE(packet) \ do { \ DBG_INF_FMT("PACKET_FREE(%p)", packet); \ if ((packet)->header.m->free_mem) { \ ((packet)->header.m->free_mem((packet))); \ } \ } while (0); PHPAPI extern const char * const mysqlnd_command_to_text[COM_END]; /* Low-level extraction functionality */ typedef struct st_mysqlnd_packet_methods { enum_func_status (*read_from_net)(MYSQLND_CONN_DATA * conn, void * packet); size_t (*write_to_net)(MYSQLND_CONN_DATA * conn, void * packet); void (*free_mem)(void *packet); } mysqlnd_packet_methods; typedef struct st_mysqlnd_packet_header { size_t size; zend_uchar packet_no; mysqlnd_packet_methods *m; } 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; char intern_auth_plugin_data[SCRAMBLE_LENGTH]; MYSQLND_STRING authentication_plugin_data; /* 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 */ 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 */ bool send_auth_data; bool is_change_user_packet; 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; MYSQLND_CSTRING argument; } 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 */ MYSQLND_STRING info_or_local_file; /* 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_MEMORY_POOL *memory_pool; MYSQLND_FIELD *metadata; /* For table definitions, empty for result sets */ bool skip_parsing; MYSQLND_ERROR_INFO error_info; } MYSQLND_PACKET_RES_FIELD; /* Row packet */ typedef struct st_mysqlnd_packet_row { MYSQLND_PACKET_HEADER header; uint32_t field_count; 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; MYSQLND_ROW_BUFFER row_buffer; MYSQLND_MEMORY_POOL * result_set_memory_pool; bool binary_protocol; MYSQLND_FIELD *fields_metadata; /* 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; MYSQLND_STRING message; } 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; 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; typedef struct st_mysqlnd_packet_cached_sha2_result { MYSQLND_PACKET_HEADER header; uint8_t response_code; uint8_t result; uint8_t request; zend_uchar * password; size_t password_len; /* Used for auth switch request */ char *new_auth_protocol; size_t new_auth_protocol_len; zend_uchar *new_auth_protocol_data; size_t new_auth_protocol_data_len; /* Used for error result */ char error[MYSQLND_ERRMSG_SIZE+1]; char sqlstate[MYSQLND_SQLSTATE_LENGTH + 1]; unsigned int error_no; } MYSQLND_PACKET_CACHED_SHA2_RESULT; zend_ulong php_mysqlnd_net_field_length(const zend_uchar **packet); zend_uchar * php_mysqlnd_net_store_length(zend_uchar *packet, const uint64_t length); size_t php_mysqlnd_net_store_length_size(uint64_t length); PHPAPI extern const char * const mysqlnd_empty_string; enum_func_status php_mysqlnd_rowp_read_binary_protocol(MYSQLND_ROW_BUFFER * row_buffer, zval * fields, unsigned int field_count, const MYSQLND_FIELD * fields_metadata, bool as_int_or_float, MYSQLND_STATS * stats); enum_func_status php_mysqlnd_rowp_read_text_protocol(MYSQLND_ROW_BUFFER * row_buffer, zval * fields, unsigned int field_count, const MYSQLND_FIELD * fields_metadata, bool as_int_or_float, MYSQLND_STATS * stats); PHPAPI MYSQLND_PROTOCOL_PAYLOAD_DECODER_FACTORY * mysqlnd_protocol_payload_decoder_factory_init(MYSQLND_CONN_DATA * conn, const bool persistent); PHPAPI void mysqlnd_protocol_payload_decoder_factory_free(MYSQLND_PROTOCOL_PAYLOAD_DECODER_FACTORY * const payload_decoder_factory); #endif /* MYSQLND_WIREPROTOCOL_H */
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