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/*
* Copyright (c) <2008>, Sun Microsystems, Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of the nor the
* names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY SUN MICROSYSTEMS, INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL SUN MICROSYSTEMS, INC. BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/*
* Summary: Constants used by to implement the binary protocol.
*
* Copy: See Copyright for the status of this software.
*
* Author: Trond Norbye <trond.norbye@sun.com>
*/
#ifndef PROTOCOL_BINARY_H
#define PROTOCOL_BINARY_H
/**
* This file contains definitions of the constants and packet formats
* defined in the binary specification. Please note that you _MUST_ remember
* to convert each multibyte field to / from network byte order to / from
* host order.
*/
#ifdef __cplusplus
extern "C"
{
#endif
/**
* Definition of the legal "magic" values used in a packet.
* See section 3.1 Magic byte
*/
typedef enum {
PROTOCOL_BINARY_REQ = 0x80,
PROTOCOL_BINARY_RES = 0x81
} protocol_binary_magic;
/**
* Definition of the valid response status numbers.
* See section 3.2 Response Status
*/
typedef enum {
PROTOCOL_BINARY_RESPONSE_SUCCESS = 0x00,
PROTOCOL_BINARY_RESPONSE_KEY_ENOENT = 0x01,
PROTOCOL_BINARY_RESPONSE_KEY_EEXISTS = 0x02,
PROTOCOL_BINARY_RESPONSE_E2BIG = 0x03,
PROTOCOL_BINARY_RESPONSE_EINVAL = 0x04,
PROTOCOL_BINARY_RESPONSE_NOT_STORED = 0x05,
PROTOCOL_BINARY_RESPONSE_DELTA_BADVAL = 0x06,
PROTOCOL_BINARY_RESPONSE_AUTH_ERROR = 0x20,
PROTOCOL_BINARY_RESPONSE_AUTH_CONTINUE = 0x21,
PROTOCOL_BINARY_RESPONSE_UNKNOWN_COMMAND = 0x81,
PROTOCOL_BINARY_RESPONSE_ENOMEM = 0x82
} protocol_binary_response_status;
/**
* Definition of the different command opcodes.
* See section 3.3 Command Opcodes
*/
typedef enum {
PROTOCOL_BINARY_CMD_GET = 0x00,
PROTOCOL_BINARY_CMD_SET = 0x01,
PROTOCOL_BINARY_CMD_ADD = 0x02,
PROTOCOL_BINARY_CMD_REPLACE = 0x03,
PROTOCOL_BINARY_CMD_DELETE = 0x04,
PROTOCOL_BINARY_CMD_INCREMENT = 0x05,
PROTOCOL_BINARY_CMD_DECREMENT = 0x06,
PROTOCOL_BINARY_CMD_QUIT = 0x07,
PROTOCOL_BINARY_CMD_FLUSH = 0x08,
PROTOCOL_BINARY_CMD_GETQ = 0x09,
PROTOCOL_BINARY_CMD_NOOP = 0x0a,
PROTOCOL_BINARY_CMD_VERSION = 0x0b,
PROTOCOL_BINARY_CMD_GETK = 0x0c,
PROTOCOL_BINARY_CMD_GETKQ = 0x0d,
PROTOCOL_BINARY_CMD_APPEND = 0x0e,
PROTOCOL_BINARY_CMD_PREPEND = 0x0f,
PROTOCOL_BINARY_CMD_STAT = 0x10,
PROTOCOL_BINARY_CMD_SETQ = 0x11,
PROTOCOL_BINARY_CMD_ADDQ = 0x12,
PROTOCOL_BINARY_CMD_REPLACEQ = 0x13,
PROTOCOL_BINARY_CMD_DELETEQ = 0x14,
PROTOCOL_BINARY_CMD_INCREMENTQ = 0x15,
PROTOCOL_BINARY_CMD_DECREMENTQ = 0x16,
PROTOCOL_BINARY_CMD_QUITQ = 0x17,
PROTOCOL_BINARY_CMD_FLUSHQ = 0x18,
PROTOCOL_BINARY_CMD_APPENDQ = 0x19,
PROTOCOL_BINARY_CMD_PREPENDQ = 0x1a,
PROTOCOL_BINARY_CMD_TOUCH = 0x1c,
PROTOCOL_BINARY_CMD_GAT = 0x1d,
PROTOCOL_BINARY_CMD_GATQ = 0x1e,
PROTOCOL_BINARY_CMD_GATK = 0x23,
PROTOCOL_BINARY_CMD_GATKQ = 0x24,
PROTOCOL_BINARY_CMD_SASL_LIST_MECHS = 0x20,
PROTOCOL_BINARY_CMD_SASL_AUTH = 0x21,
PROTOCOL_BINARY_CMD_SASL_STEP = 0x22,
/* These commands are used for range operations and exist within
* this header for use in other projects. Range operations are
* not expected to be implemented in the memcached server itself.
*/
PROTOCOL_BINARY_CMD_RGET = 0x30,
PROTOCOL_BINARY_CMD_RSET = 0x31,
PROTOCOL_BINARY_CMD_RSETQ = 0x32,
PROTOCOL_BINARY_CMD_RAPPEND = 0x33,
PROTOCOL_BINARY_CMD_RAPPENDQ = 0x34,
PROTOCOL_BINARY_CMD_RPREPEND = 0x35,
PROTOCOL_BINARY_CMD_RPREPENDQ = 0x36,
PROTOCOL_BINARY_CMD_RDELETE = 0x37,
PROTOCOL_BINARY_CMD_RDELETEQ = 0x38,
PROTOCOL_BINARY_CMD_RINCR = 0x39,
PROTOCOL_BINARY_CMD_RINCRQ = 0x3a,
PROTOCOL_BINARY_CMD_RDECR = 0x3b,
PROTOCOL_BINARY_CMD_RDECRQ = 0x3c
/* End Range operations */
} protocol_binary_command;
/**
* Definition of the data types in the packet
* See section 3.4 Data Types
*/
typedef enum {
PROTOCOL_BINARY_RAW_BYTES = 0x00
} protocol_binary_datatypes;
/**
* Definition of the header structure for a request packet.
* See section 2
*/
typedef union {
struct {
uint8_t magic;
uint8_t opcode;
uint16_t keylen;
uint8_t extlen;
uint8_t datatype;
uint16_t reserved;
uint32_t bodylen;
uint32_t opaque;
uint64_t cas;
} request;
uint8_t bytes[24];
} protocol_binary_request_header;
/**
* Definition of the header structure for a response packet.
* See section 2
*/
typedef union {
struct {
uint8_t magic;
uint8_t opcode;
uint16_t keylen;
uint8_t extlen;
uint8_t datatype;
uint16_t status;
uint32_t bodylen;
uint32_t opaque;
uint64_t cas;
} response;
uint8_t bytes[24];
} protocol_binary_response_header;
/**
* Definition of a request-packet containing no extras
*/
typedef union {
struct {
protocol_binary_request_header header;
} message;
uint8_t bytes[sizeof(protocol_binary_request_header)];
} protocol_binary_request_no_extras;
/**
* Definition of a response-packet containing no extras
*/
typedef union {
struct {
protocol_binary_response_header header;
} message;
uint8_t bytes[sizeof(protocol_binary_response_header)];
} protocol_binary_response_no_extras;
/**
* Definition of the packet used by the get, getq, getk and getkq command.
* See section 4
*/
typedef protocol_binary_request_no_extras protocol_binary_request_get;
typedef protocol_binary_request_no_extras protocol_binary_request_getq;
typedef protocol_binary_request_no_extras protocol_binary_request_getk;
typedef protocol_binary_request_no_extras protocol_binary_request_getkq;
/**
* Definition of the packet returned from a successful get, getq, getk and
* getkq.
* See section 4
*/
typedef union {
struct {
protocol_binary_response_header header;
struct {
uint32_t flags;
} body;
} message;
uint8_t bytes[sizeof(protocol_binary_response_header) + 4];
} protocol_binary_response_get;
typedef protocol_binary_response_get protocol_binary_response_getq;
typedef protocol_binary_response_get protocol_binary_response_getk;
typedef protocol_binary_response_get protocol_binary_response_getkq;
/**
* Definition of the packet used by the delete command
* See section 4
*/
typedef protocol_binary_request_no_extras protocol_binary_request_delete;
/**
* Definition of the packet returned by the delete command
* See section 4
*/
typedef protocol_binary_response_no_extras protocol_binary_response_delete;
/**
* Definition of the packet used by the flush command
* See section 4
* Please note that the expiration field is optional, so remember to see
* check the header.bodysize to see if it is present.
*/
typedef union {
struct {
protocol_binary_request_header header;
struct {
uint32_t expiration;
} body;
} message;
uint8_t bytes[sizeof(protocol_binary_request_header) + 4];
} protocol_binary_request_flush;
/**
* Definition of the packet returned by the flush command
* See section 4
*/
typedef protocol_binary_response_no_extras protocol_binary_response_flush;
/**
* Definition of the packet used by set, add and replace
* See section 4
*/
typedef union {
struct {
protocol_binary_request_header header;
struct {
uint32_t flags;
uint32_t expiration;
} body;
} message;
uint8_t bytes[sizeof(protocol_binary_request_header) + 8];
} protocol_binary_request_set;
typedef protocol_binary_request_set protocol_binary_request_add;
typedef protocol_binary_request_set protocol_binary_request_replace;
/**
* Definition of the packet returned by set, add and replace
* See section 4
*/
typedef protocol_binary_response_no_extras protocol_binary_response_set;
typedef protocol_binary_response_no_extras protocol_binary_response_add;
typedef protocol_binary_response_no_extras protocol_binary_response_replace;
/**
* Definition of the noop packet
* See section 4
*/
typedef protocol_binary_request_no_extras protocol_binary_request_noop;
/**
* Definition of the packet returned by the noop command
* See section 4
*/
typedef protocol_binary_response_no_extras protocol_binary_response_noop;
/**
* Definition of the structure used by the increment and decrement
* command.
* See section 4
*/
typedef union {
struct {
protocol_binary_request_header header;
struct {
uint64_t delta;
uint64_t initial;
uint32_t expiration;
} body;
} message;
uint8_t bytes[sizeof(protocol_binary_request_header) + 20];
} protocol_binary_request_incr;
typedef protocol_binary_request_incr protocol_binary_request_decr;
/**
* Definition of the response from an incr or decr command
* command.
* See section 4
*/
typedef union {
struct {
protocol_binary_response_header header;
struct {
uint64_t value;
} body;
} message;
uint8_t bytes[sizeof(protocol_binary_response_header) + 8];
} protocol_binary_response_incr;
typedef protocol_binary_response_incr protocol_binary_response_decr;
/**
* Definition of the quit
* See section 4
*/
typedef protocol_binary_request_no_extras protocol_binary_request_quit;
/**
* Definition of the packet returned by the quit command
* See section 4
*/
typedef protocol_binary_response_no_extras protocol_binary_response_quit;
/**
* Definition of the packet used by append and prepend command
* See section 4
*/
typedef protocol_binary_request_no_extras protocol_binary_request_append;
typedef protocol_binary_request_no_extras protocol_binary_request_prepend;
/**
* Definition of the packet returned from a successful append or prepend
* See section 4
*/
typedef protocol_binary_response_no_extras protocol_binary_response_append;
typedef protocol_binary_response_no_extras protocol_binary_response_prepend;
/**
* Definition of the packet used by the version command
* See section 4
*/
typedef protocol_binary_request_no_extras protocol_binary_request_version;
/**
* Definition of the packet returned from a successful version command
* See section 4
*/
typedef protocol_binary_response_no_extras protocol_binary_response_version;
/**
* Definition of the packet used by the stats command.
* See section 4
*/
typedef protocol_binary_request_no_extras protocol_binary_request_stats;
/**
* Definition of the packet returned from a successful stats command
* See section 4
*/
typedef protocol_binary_response_no_extras protocol_binary_response_stats;
/**
* Definition of the packet used by the touch command.
*/
typedef union {
struct {
protocol_binary_request_header header;
struct {
uint32_t expiration;
} body;
} message;
uint8_t bytes[sizeof(protocol_binary_request_header) + 4];
} protocol_binary_request_touch;
/**
* Definition of the packet returned from the touch command
*/
typedef protocol_binary_response_no_extras protocol_binary_response_touch;
/**
* Definition of the packet used by the GAT(Q) command.
*/
typedef union {
struct {
protocol_binary_request_header header;
struct {
uint32_t expiration;
} body;
} message;
uint8_t bytes[sizeof(protocol_binary_request_header) + 4];
} protocol_binary_request_gat;
typedef protocol_binary_request_gat protocol_binary_request_gatq;
typedef protocol_binary_request_gat protocol_binary_request_gatk;
typedef protocol_binary_request_gat protocol_binary_request_gatkq;
/**
* Definition of the packet returned from the GAT(Q)
*/
typedef protocol_binary_response_get protocol_binary_response_gat;
typedef protocol_binary_response_get protocol_binary_response_gatq;
typedef protocol_binary_response_get protocol_binary_response_gatk;
typedef protocol_binary_response_get protocol_binary_response_gatkq;
/**
* Definition of a request for a range operation.
* See http://code.google.com/p/memcached/wiki/RangeOps
*
* These types are used for range operations and exist within
* this header for use in other projects. Range operations are
* not expected to be implemented in the memcached server itself.
*/
typedef union {
struct {
protocol_binary_response_header header;
struct {
uint16_t size;
uint8_t reserved;
uint8_t flags;
uint32_t max_results;
} body;
} message;
uint8_t bytes[sizeof(protocol_binary_request_header) + 4];
} protocol_binary_request_rangeop;
typedef protocol_binary_request_rangeop protocol_binary_request_rget;
typedef protocol_binary_request_rangeop protocol_binary_request_rset;
typedef protocol_binary_request_rangeop protocol_binary_request_rsetq;
typedef protocol_binary_request_rangeop protocol_binary_request_rappend;
typedef protocol_binary_request_rangeop protocol_binary_request_rappendq;
typedef protocol_binary_request_rangeop protocol_binary_request_rprepend;
typedef protocol_binary_request_rangeop protocol_binary_request_rprependq;
typedef protocol_binary_request_rangeop protocol_binary_request_rdelete;
typedef protocol_binary_request_rangeop protocol_binary_request_rdeleteq;
typedef protocol_binary_request_rangeop protocol_binary_request_rincr;
typedef protocol_binary_request_rangeop protocol_binary_request_rincrq;
typedef protocol_binary_request_rangeop protocol_binary_request_rdecr;
typedef protocol_binary_request_rangeop protocol_binary_request_rdecrq;
#ifdef __cplusplus
}
#endif
#endif /* PROTOCOL_BINARY_H */