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![Boaz Harrosh](/assets/img/avatar_default.png)
I no longer have access to the Panasas email. So change to an email that can always reach me. Signed-off-by: Boaz Harrosh <ooo@electrozaur.com>
676 lines
18 KiB
C
676 lines
18 KiB
C
/*
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* osd_protocol.h - OSD T10 standard C definitions.
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*
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* Copyright (C) 2008 Panasas Inc. All rights reserved.
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*
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* Authors:
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* Boaz Harrosh <ooo@electrozaur.com>
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* Benny Halevy <bhalevy@panasas.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2
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*
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* This file contains types and constants that are defined by the protocol
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* Note: All names and symbols are taken from the OSD standard's text.
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*/
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#ifndef __OSD_PROTOCOL_H__
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#define __OSD_PROTOCOL_H__
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#include <linux/types.h>
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#include <linux/kernel.h>
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#include <asm/unaligned.h>
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#include <scsi/scsi.h>
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enum {
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OSDv1_ADDITIONAL_CDB_LENGTH = 192,
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OSDv1_TOTAL_CDB_LEN = OSDv1_ADDITIONAL_CDB_LENGTH + 8,
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OSDv1_CAP_LEN = 80,
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/* Latest supported version */
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OSDv2_ADDITIONAL_CDB_LENGTH = 228,
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OSD_ADDITIONAL_CDB_LENGTH =
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OSDv2_ADDITIONAL_CDB_LENGTH,
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OSD_TOTAL_CDB_LEN = OSD_ADDITIONAL_CDB_LENGTH + 8,
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OSD_CAP_LEN = 104,
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OSD_SYSTEMID_LEN = 20,
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OSDv1_CRYPTO_KEYID_SIZE = 20,
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OSDv2_CRYPTO_KEYID_SIZE = 32,
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OSD_CRYPTO_KEYID_SIZE = OSDv2_CRYPTO_KEYID_SIZE,
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OSD_CRYPTO_SEED_SIZE = 4,
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OSD_CRYPTO_NONCE_SIZE = 12,
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OSD_MAX_SENSE_LEN = 252, /* from SPC-3 */
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OSD_PARTITION_FIRST_ID = 0x10000,
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OSD_OBJECT_FIRST_ID = 0x10000,
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};
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/* (osd-r10 5.2.4)
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* osd2r03: 5.2.3 Caching control bits
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*/
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enum osd_options_byte {
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OSD_CDB_FUA = 0x08, /* Force Unit Access */
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OSD_CDB_DPO = 0x10, /* Disable Page Out */
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};
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/*
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* osd2r03: 5.2.5 Isolation.
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* First 3 bits, V2-only.
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* Also for attr 110h "default isolation method" at Root Information page
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*/
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enum osd_options_byte_isolation {
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OSD_ISOLATION_DEFAULT = 0,
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OSD_ISOLATION_NONE = 1,
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OSD_ISOLATION_STRICT = 2,
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OSD_ISOLATION_RANGE = 4,
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OSD_ISOLATION_FUNCTIONAL = 5,
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OSD_ISOLATION_VENDOR = 7,
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};
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/* (osd-r10: 6.7)
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* osd2r03: 6.8 FLUSH, FLUSH COLLECTION, FLUSH OSD, FLUSH PARTITION
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*/
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enum osd_options_flush_scope_values {
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OSD_CDB_FLUSH_ALL = 0,
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OSD_CDB_FLUSH_ATTR_ONLY = 1,
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OSD_CDB_FLUSH_ALL_RECURSIVE = 2,
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/* V2-only */
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OSD_CDB_FLUSH_ALL_RANGE = 2,
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};
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/* osd2r03: 5.2.10 Timestamps control */
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enum {
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OSD_CDB_NORMAL_TIMESTAMPS = 0,
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OSD_CDB_BYPASS_TIMESTAMPS = 0x7f,
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};
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/* (osd-r10: 5.2.2.1)
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* osd2r03: 5.2.4.1 Get and set attributes CDB format selection
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* 2 bits at second nibble of command_specific_options byte
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*/
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enum osd_attributes_mode {
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/* V2-only */
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OSD_CDB_SET_ONE_ATTR = 0x10,
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OSD_CDB_GET_ATTR_PAGE_SET_ONE = 0x20,
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OSD_CDB_GET_SET_ATTR_LISTS = 0x30,
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OSD_CDB_GET_SET_ATTR_MASK = 0x30,
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};
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/* (osd-r10: 4.12.5)
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* osd2r03: 4.14.5 Data-In and Data-Out buffer offsets
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* byte offset = mantissa * (2^(exponent+8))
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* struct {
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* unsigned mantissa: 28;
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* int exponent: 04;
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* }
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*/
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typedef __be32 osd_cdb_offset;
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enum {
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OSD_OFFSET_UNUSED = 0xFFFFFFFF,
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OSD_OFFSET_MAX_BITS = 28,
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OSDv1_OFFSET_MIN_SHIFT = 8,
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OSD_OFFSET_MIN_SHIFT = 3,
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OSD_OFFSET_MAX_SHIFT = 16,
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};
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/* Return the smallest allowed encoded offset that contains @offset.
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*
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* The actual encoded offset returned is @offset + *padding.
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* (up to max_shift, non-inclusive)
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*/
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osd_cdb_offset __osd_encode_offset(u64 offset, unsigned *padding,
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int min_shift, int max_shift);
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/* Minimum alignment is 256 bytes
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* Note: Seems from std v1 that exponent can be from 0+8 to 0xE+8 (inclusive)
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* which is 8 to 23 but IBM code restricts it to 16, so be it.
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*/
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static inline osd_cdb_offset osd_encode_offset_v1(u64 offset, unsigned *padding)
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{
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return __osd_encode_offset(offset, padding,
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OSDv1_OFFSET_MIN_SHIFT, OSD_OFFSET_MAX_SHIFT);
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}
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/* Minimum 8 bytes alignment
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* Same as v1 but since exponent can be signed than a less than
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* 256 alignment can be reached with small offsets (<2GB)
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*/
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static inline osd_cdb_offset osd_encode_offset_v2(u64 offset, unsigned *padding)
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{
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return __osd_encode_offset(offset, padding,
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OSD_OFFSET_MIN_SHIFT, OSD_OFFSET_MAX_SHIFT);
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}
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/* osd2r03: 5.2.1 Overview */
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struct osd_cdb_head {
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struct scsi_varlen_cdb_hdr varlen_cdb;
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/*10*/ u8 options;
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u8 command_specific_options;
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u8 timestamp_control;
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/*13*/ u8 reserved1[3];
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/*16*/ __be64 partition;
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/*24*/ __be64 object;
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/*32*/ union { /* V1 vs V2 alignment differences */
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struct __osdv1_cdb_addr_len {
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/*32*/ __be32 list_identifier;/* Rarely used */
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/*36*/ __be64 length;
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/*44*/ __be64 start_address;
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} __packed v1;
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struct __osdv2_cdb_addr_len {
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/* called allocation_length in some commands */
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/*32*/ __be64 length;
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/*40*/ __be64 start_address;
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union {
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/*48*/ __be32 list_identifier;/* Rarely used */
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/* OSD2r05 5.2.5 CDB continuation length */
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/*48*/ __be32 cdb_continuation_length;
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};
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} __packed v2;
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};
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/*52*/ union { /* selected attributes mode Page/List/Single */
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struct osd_attributes_page_mode {
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/*52*/ __be32 get_attr_page;
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/*56*/ __be32 get_attr_alloc_length;
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/*60*/ osd_cdb_offset get_attr_offset;
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/*64*/ __be32 set_attr_page;
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/*68*/ __be32 set_attr_id;
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/*72*/ __be32 set_attr_length;
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/*76*/ osd_cdb_offset set_attr_offset;
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/*80*/ } __packed attrs_page;
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struct osd_attributes_list_mode {
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/*52*/ __be32 get_attr_desc_bytes;
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/*56*/ osd_cdb_offset get_attr_desc_offset;
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/*60*/ __be32 get_attr_alloc_length;
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/*64*/ osd_cdb_offset get_attr_offset;
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/*68*/ __be32 set_attr_bytes;
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/*72*/ osd_cdb_offset set_attr_offset;
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__be32 not_used;
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/*80*/ } __packed attrs_list;
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/* osd2r03:5.2.4.2 Set one attribute value using CDB fields */
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struct osd_attributes_cdb_mode {
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/*52*/ __be32 set_attr_page;
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/*56*/ __be32 set_attr_id;
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/*60*/ __be16 set_attr_len;
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/*62*/ u8 set_attr_val[18];
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/*80*/ } __packed attrs_cdb;
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/*52*/ u8 get_set_attributes_parameters[28];
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};
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} __packed;
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/*80*/
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/*160 v1*/
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struct osdv1_security_parameters {
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/*160*/u8 integrity_check_value[OSDv1_CRYPTO_KEYID_SIZE];
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/*180*/u8 request_nonce[OSD_CRYPTO_NONCE_SIZE];
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/*192*/osd_cdb_offset data_in_integrity_check_offset;
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/*196*/osd_cdb_offset data_out_integrity_check_offset;
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} __packed;
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/*200 v1*/
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/*184 v2*/
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struct osdv2_security_parameters {
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/*184*/u8 integrity_check_value[OSDv2_CRYPTO_KEYID_SIZE];
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/*216*/u8 request_nonce[OSD_CRYPTO_NONCE_SIZE];
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/*228*/osd_cdb_offset data_in_integrity_check_offset;
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/*232*/osd_cdb_offset data_out_integrity_check_offset;
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} __packed;
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/*236 v2*/
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struct osd_security_parameters {
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union {
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struct osdv1_security_parameters v1;
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struct osdv2_security_parameters v2;
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};
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};
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struct osdv1_cdb {
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struct osd_cdb_head h;
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u8 caps[OSDv1_CAP_LEN];
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struct osdv1_security_parameters sec_params;
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} __packed;
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struct osdv2_cdb {
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struct osd_cdb_head h;
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u8 caps[OSD_CAP_LEN];
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struct osdv2_security_parameters sec_params;
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} __packed;
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struct osd_cdb {
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union {
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struct osdv1_cdb v1;
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struct osdv2_cdb v2;
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u8 buff[OSD_TOTAL_CDB_LEN];
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};
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} __packed;
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static inline struct osd_cdb_head *osd_cdb_head(struct osd_cdb *ocdb)
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{
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return (struct osd_cdb_head *)ocdb->buff;
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}
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/* define both version actions
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* Ex name = FORMAT_OSD we have OSD_ACT_FORMAT_OSD && OSDv1_ACT_FORMAT_OSD
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*/
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#define OSD_ACT___(Name, Num) \
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OSD_ACT_##Name = cpu_to_be16(0x8880 + Num), \
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OSDv1_ACT_##Name = cpu_to_be16(0x8800 + Num),
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/* V2 only actions */
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#define OSD_ACT_V2(Name, Num) \
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OSD_ACT_##Name = cpu_to_be16(0x8880 + Num),
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#define OSD_ACT_V1_V2(Name, Num1, Num2) \
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OSD_ACT_##Name = cpu_to_be16(Num2), \
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OSDv1_ACT_##Name = cpu_to_be16(Num1),
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enum osd_service_actions {
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OSD_ACT_V2(OBJECT_STRUCTURE_CHECK, 0x00)
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OSD_ACT___(FORMAT_OSD, 0x01)
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OSD_ACT___(CREATE, 0x02)
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OSD_ACT___(LIST, 0x03)
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OSD_ACT_V2(PUNCH, 0x04)
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OSD_ACT___(READ, 0x05)
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OSD_ACT___(WRITE, 0x06)
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OSD_ACT___(APPEND, 0x07)
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OSD_ACT___(FLUSH, 0x08)
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OSD_ACT_V2(CLEAR, 0x09)
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OSD_ACT___(REMOVE, 0x0A)
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OSD_ACT___(CREATE_PARTITION, 0x0B)
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OSD_ACT___(REMOVE_PARTITION, 0x0C)
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OSD_ACT___(GET_ATTRIBUTES, 0x0E)
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OSD_ACT___(SET_ATTRIBUTES, 0x0F)
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OSD_ACT___(CREATE_AND_WRITE, 0x12)
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OSD_ACT___(CREATE_COLLECTION, 0x15)
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OSD_ACT___(REMOVE_COLLECTION, 0x16)
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OSD_ACT___(LIST_COLLECTION, 0x17)
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OSD_ACT___(SET_KEY, 0x18)
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OSD_ACT___(SET_MASTER_KEY, 0x19)
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OSD_ACT___(FLUSH_COLLECTION, 0x1A)
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OSD_ACT___(FLUSH_PARTITION, 0x1B)
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OSD_ACT___(FLUSH_OSD, 0x1C)
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OSD_ACT_V2(QUERY, 0x20)
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OSD_ACT_V2(REMOVE_MEMBER_OBJECTS, 0x21)
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OSD_ACT_V2(GET_MEMBER_ATTRIBUTES, 0x22)
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OSD_ACT_V2(SET_MEMBER_ATTRIBUTES, 0x23)
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OSD_ACT_V2(CREATE_CLONE, 0x28)
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OSD_ACT_V2(CREATE_SNAPSHOT, 0x29)
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OSD_ACT_V2(DETACH_CLONE, 0x2A)
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OSD_ACT_V2(REFRESH_SNAPSHOT_CLONE, 0x2B)
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OSD_ACT_V2(RESTORE_PARTITION_FROM_SNAPSHOT, 0x2C)
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OSD_ACT_V2(READ_MAP, 0x31)
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OSD_ACT_V2(READ_MAPS_COMPARE, 0x32)
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OSD_ACT_V1_V2(PERFORM_SCSI_COMMAND, 0x8F7E, 0x8F7C)
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OSD_ACT_V1_V2(SCSI_TASK_MANAGEMENT, 0x8F7F, 0x8F7D)
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/* 0x8F80 to 0x8FFF are Vendor specific */
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};
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/* osd2r03: 7.1.3.2 List entry format for retrieving attributes */
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struct osd_attributes_list_attrid {
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__be32 attr_page;
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__be32 attr_id;
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} __packed;
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/*
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* NOTE: v1: is not aligned.
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*/
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struct osdv1_attributes_list_element {
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__be32 attr_page;
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__be32 attr_id;
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__be16 attr_bytes; /* valid bytes at attr_val without padding */
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u8 attr_val[0];
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} __packed;
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/*
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* osd2r03: 7.1.3.3 List entry format for retrieved attributes and
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* for setting attributes
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* NOTE: v2 is 8-bytes aligned
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*/
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struct osdv2_attributes_list_element {
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__be32 attr_page;
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__be32 attr_id;
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u8 reserved[6];
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__be16 attr_bytes; /* valid bytes at attr_val without padding */
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u8 attr_val[0];
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} __packed;
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enum {
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OSDv1_ATTRIBUTES_ELEM_ALIGN = 1,
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OSD_ATTRIBUTES_ELEM_ALIGN = 8,
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};
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enum {
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OSD_ATTR_LIST_ALL_PAGES = 0xFFFFFFFF,
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OSD_ATTR_LIST_ALL_IN_PAGE = 0xFFFFFFFF,
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};
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static inline unsigned osdv1_attr_list_elem_size(unsigned len)
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{
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return ALIGN(len + sizeof(struct osdv1_attributes_list_element),
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OSDv1_ATTRIBUTES_ELEM_ALIGN);
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}
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static inline unsigned osdv2_attr_list_elem_size(unsigned len)
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{
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return ALIGN(len + sizeof(struct osdv2_attributes_list_element),
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OSD_ATTRIBUTES_ELEM_ALIGN);
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}
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/*
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* osd2r03: 7.1.3 OSD attributes lists (Table 184) — List type values
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*/
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enum osd_attr_list_types {
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OSD_ATTR_LIST_GET = 0x1, /* descriptors only */
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OSD_ATTR_LIST_SET_RETRIEVE = 0x9, /*descriptors/values variable-length*/
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OSD_V2_ATTR_LIST_MULTIPLE = 0xE, /* ver2, Multiple Objects lists*/
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OSD_V1_ATTR_LIST_CREATE_MULTIPLE = 0xF,/*ver1, used by create_multple*/
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};
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/* osd2r03: 7.1.3.4 Multi-object retrieved attributes format */
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struct osd_attributes_list_multi_header {
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__be64 object_id;
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u8 object_type; /* object_type enum below */
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u8 reserved[5];
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__be16 list_bytes;
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/* followed by struct osd_attributes_list_element's */
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};
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struct osdv1_attributes_list_header {
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u8 type; /* low 4-bit only */
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u8 pad;
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__be16 list_bytes; /* Initiator shall set to Zero. Only set by target */
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/*
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* type=9 followed by struct osd_attributes_list_element's
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* type=E followed by struct osd_attributes_list_multi_header's
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*/
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} __packed;
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static inline unsigned osdv1_list_size(struct osdv1_attributes_list_header *h)
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{
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return be16_to_cpu(h->list_bytes);
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}
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struct osdv2_attributes_list_header {
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u8 type; /* lower 4-bits only */
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u8 pad[3];
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/*4*/ __be32 list_bytes; /* Initiator shall set to zero. Only set by target */
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/*
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* type=9 followed by struct osd_attributes_list_element's
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* type=E followed by struct osd_attributes_list_multi_header's
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*/
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} __packed;
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static inline unsigned osdv2_list_size(struct osdv2_attributes_list_header *h)
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{
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return be32_to_cpu(h->list_bytes);
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}
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/* (osd-r10 6.13)
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* osd2r03: 6.15 LIST (Table 79) LIST command parameter data.
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* for root_lstchg below
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*/
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enum {
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OSD_OBJ_ID_LIST_PAR = 0x1, /* V1-only. Not used in V2 */
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OSD_OBJ_ID_LIST_LSTCHG = 0x2,
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};
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/*
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* osd2r03: 6.15.2 LIST command parameter data
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* (Also for LIST COLLECTION)
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*/
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struct osd_obj_id_list {
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__be64 list_bytes; /* bytes in list excluding list_bytes (-8) */
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__be64 continuation_id;
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__be32 list_identifier;
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u8 pad[3];
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u8 root_lstchg;
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__be64 object_ids[0];
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} __packed;
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static inline bool osd_is_obj_list_done(struct osd_obj_id_list *list,
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bool *is_changed)
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{
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*is_changed = (0 != (list->root_lstchg & OSD_OBJ_ID_LIST_LSTCHG));
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return 0 != list->continuation_id;
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}
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/*
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* osd2r03: 4.12.4.5 The ALLDATA security method
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*/
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struct osd_data_out_integrity_info {
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__be64 data_bytes;
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__be64 set_attributes_bytes;
|
|
__be64 get_attributes_bytes;
|
|
__u8 integrity_check_value[OSD_CRYPTO_KEYID_SIZE];
|
|
} __packed;
|
|
|
|
/* Same osd_data_out_integrity_info is used for OSD2/OSD1. The only difference
|
|
* Is the sizeof the structure since in OSD1 the last array is smaller. Use
|
|
* below for version independent handling of this structure
|
|
*/
|
|
static inline int osd_data_out_integrity_info_sizeof(bool is_ver1)
|
|
{
|
|
return sizeof(struct osd_data_out_integrity_info) -
|
|
(is_ver1 * (OSDv2_CRYPTO_KEYID_SIZE - OSDv1_CRYPTO_KEYID_SIZE));
|
|
}
|
|
|
|
struct osd_data_in_integrity_info {
|
|
__be64 data_bytes;
|
|
__be64 retrieved_attributes_bytes;
|
|
__u8 integrity_check_value[OSD_CRYPTO_KEYID_SIZE];
|
|
} __packed;
|
|
|
|
/* Same osd_data_in_integrity_info is used for OSD2/OSD1. The only difference
|
|
* Is the sizeof the structure since in OSD1 the last array is smaller. Use
|
|
* below for version independent handling of this structure
|
|
*/
|
|
static inline int osd_data_in_integrity_info_sizeof(bool is_ver1)
|
|
{
|
|
return sizeof(struct osd_data_in_integrity_info) -
|
|
(is_ver1 * (OSDv2_CRYPTO_KEYID_SIZE - OSDv1_CRYPTO_KEYID_SIZE));
|
|
}
|
|
|
|
struct osd_timestamp {
|
|
u8 time[6]; /* number of milliseconds since 1/1/1970 UT (big endian) */
|
|
} __packed;
|
|
/* FIXME: define helper functions to convert to/from osd time format */
|
|
|
|
/*
|
|
* Capability & Security definitions
|
|
* osd2r03: 4.11.2.2 Capability format
|
|
* osd2r03: 5.2.8 Security parameters
|
|
*/
|
|
|
|
struct osd_key_identifier {
|
|
u8 id[7]; /* if you know why 7 please email ooo@electrozaur.com */
|
|
} __packed;
|
|
|
|
/* for osd_capability.format */
|
|
enum {
|
|
OSD_SEC_CAP_FORMAT_NO_CAPS = 0,
|
|
OSD_SEC_CAP_FORMAT_VER1 = 1,
|
|
OSD_SEC_CAP_FORMAT_VER2 = 2,
|
|
};
|
|
|
|
/* security_method */
|
|
enum {
|
|
OSD_SEC_NOSEC = 0,
|
|
OSD_SEC_CAPKEY = 1,
|
|
OSD_SEC_CMDRSP = 2,
|
|
OSD_SEC_ALLDATA = 3,
|
|
};
|
|
|
|
enum object_type {
|
|
OSD_SEC_OBJ_ROOT = 0x1,
|
|
OSD_SEC_OBJ_PARTITION = 0x2,
|
|
OSD_SEC_OBJ_COLLECTION = 0x40,
|
|
OSD_SEC_OBJ_USER = 0x80,
|
|
};
|
|
|
|
enum osd_capability_bit_masks {
|
|
OSD_SEC_CAP_APPEND = BIT(0),
|
|
OSD_SEC_CAP_OBJ_MGMT = BIT(1),
|
|
OSD_SEC_CAP_REMOVE = BIT(2),
|
|
OSD_SEC_CAP_CREATE = BIT(3),
|
|
OSD_SEC_CAP_SET_ATTR = BIT(4),
|
|
OSD_SEC_CAP_GET_ATTR = BIT(5),
|
|
OSD_SEC_CAP_WRITE = BIT(6),
|
|
OSD_SEC_CAP_READ = BIT(7),
|
|
|
|
OSD_SEC_CAP_NONE1 = BIT(8),
|
|
OSD_SEC_CAP_NONE2 = BIT(9),
|
|
OSD_SEC_GBL_REM = BIT(10), /*v2 only*/
|
|
OSD_SEC_CAP_QUERY = BIT(11), /*v2 only*/
|
|
OSD_SEC_CAP_M_OBJECT = BIT(12), /*v2 only*/
|
|
OSD_SEC_CAP_POL_SEC = BIT(13),
|
|
OSD_SEC_CAP_GLOBAL = BIT(14),
|
|
OSD_SEC_CAP_DEV_MGMT = BIT(15),
|
|
};
|
|
|
|
/* for object_descriptor_type (hi nibble used) */
|
|
enum {
|
|
OSD_SEC_OBJ_DESC_NONE = 0, /* Not allowed */
|
|
OSD_SEC_OBJ_DESC_OBJ = 1 << 4, /* v1: also collection */
|
|
OSD_SEC_OBJ_DESC_PAR = 2 << 4, /* also root */
|
|
OSD_SEC_OBJ_DESC_COL = 3 << 4, /* v2 only */
|
|
};
|
|
|
|
/* (osd-r10:4.9.2.2)
|
|
* osd2r03:4.11.2.2 Capability format
|
|
*/
|
|
struct osd_capability_head {
|
|
u8 format; /* low nibble */
|
|
u8 integrity_algorithm__key_version; /* MAKE_BYTE(integ_alg, key_ver) */
|
|
u8 security_method;
|
|
u8 reserved1;
|
|
/*04*/ struct osd_timestamp expiration_time;
|
|
/*10*/ u8 audit[20];
|
|
/*30*/ u8 discriminator[12];
|
|
/*42*/ struct osd_timestamp object_created_time;
|
|
/*48*/ u8 object_type;
|
|
/*49*/ u8 permissions_bit_mask[5];
|
|
/*54*/ u8 reserved2;
|
|
/*55*/ u8 object_descriptor_type; /* high nibble */
|
|
} __packed;
|
|
|
|
/*56 v1*/
|
|
struct osdv1_cap_object_descriptor {
|
|
union {
|
|
struct {
|
|
/*56*/ __be32 policy_access_tag;
|
|
/*60*/ __be64 allowed_partition_id;
|
|
/*68*/ __be64 allowed_object_id;
|
|
/*76*/ __be32 reserved;
|
|
} __packed obj_desc;
|
|
|
|
/*56*/ u8 object_descriptor[24];
|
|
};
|
|
} __packed;
|
|
/*80 v1*/
|
|
|
|
/*56 v2*/
|
|
struct osd_cap_object_descriptor {
|
|
union {
|
|
struct {
|
|
/*56*/ __be32 allowed_attributes_access;
|
|
/*60*/ __be32 policy_access_tag;
|
|
/*64*/ __be16 boot_epoch;
|
|
/*66*/ u8 reserved[6];
|
|
/*72*/ __be64 allowed_partition_id;
|
|
/*80*/ __be64 allowed_object_id;
|
|
/*88*/ __be64 allowed_range_length;
|
|
/*96*/ __be64 allowed_range_start;
|
|
} __packed obj_desc;
|
|
|
|
/*56*/ u8 object_descriptor[48];
|
|
};
|
|
} __packed;
|
|
/*104 v2*/
|
|
|
|
struct osdv1_capability {
|
|
struct osd_capability_head h;
|
|
struct osdv1_cap_object_descriptor od;
|
|
} __packed;
|
|
|
|
struct osd_capability {
|
|
struct osd_capability_head h;
|
|
struct osd_cap_object_descriptor od;
|
|
} __packed;
|
|
|
|
/**
|
|
* osd_sec_set_caps - set cap-bits into the capabilities header
|
|
*
|
|
* @cap: The osd_capability_head to set cap bits to.
|
|
* @bit_mask: Use an ORed list of enum osd_capability_bit_masks values
|
|
*
|
|
* permissions_bit_mask is unaligned use below to set into caps
|
|
* in a version independent way
|
|
*/
|
|
static inline void osd_sec_set_caps(struct osd_capability_head *cap,
|
|
u16 bit_mask)
|
|
{
|
|
/*
|
|
*Note: The bits above are defined LE order this is because this way
|
|
* they can grow in the future to more then 16, and still retain
|
|
* there constant values.
|
|
*/
|
|
put_unaligned_le16(bit_mask, &cap->permissions_bit_mask);
|
|
}
|
|
|
|
/* osd2r05a sec 5.3: CDB continuation segment formats */
|
|
enum osd_continuation_segment_format {
|
|
CDB_CONTINUATION_FORMAT_V2 = 0x01,
|
|
};
|
|
|
|
struct osd_continuation_segment_header {
|
|
u8 format;
|
|
u8 reserved1;
|
|
__be16 service_action;
|
|
__be32 reserved2;
|
|
u8 integrity_check[OSDv2_CRYPTO_KEYID_SIZE];
|
|
} __packed;
|
|
|
|
/* osd2r05a sec 5.4.1: CDB continuation descriptors */
|
|
enum osd_continuation_descriptor_type {
|
|
NO_MORE_DESCRIPTORS = 0x0000,
|
|
SCATTER_GATHER_LIST = 0x0001,
|
|
QUERY_LIST = 0x0002,
|
|
USER_OBJECT = 0x0003,
|
|
COPY_USER_OBJECT_SOURCE = 0x0101,
|
|
EXTENSION_CAPABILITIES = 0xFFEE
|
|
};
|
|
|
|
struct osd_continuation_descriptor_header {
|
|
__be16 type;
|
|
u8 reserved;
|
|
u8 pad_length;
|
|
__be32 length;
|
|
} __packed;
|
|
|
|
|
|
/* osd2r05a sec 5.4.2: Scatter/gather list */
|
|
struct osd_sg_list_entry {
|
|
__be64 offset;
|
|
__be64 len;
|
|
};
|
|
|
|
struct osd_sg_continuation_descriptor {
|
|
struct osd_continuation_descriptor_header hdr;
|
|
struct osd_sg_list_entry entries[];
|
|
};
|
|
|
|
#endif /* ndef __OSD_PROTOCOL_H__ */
|