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[SCSI] libosd: OSDv1 Headers
Headers only patch. osd_protocol.h Contains a C-fied definition of the T10 OSD standard osd_types.h Contains CPU order common used types osd_initiator.h API definition of the osd_initiator library osd_sec.h Contains High level API for the security manager. [Note that checkpatch spews errors on things that are valid in this context and will not be fixed] Signed-off-by: Boaz Harrosh <bharrosh@panasas.com> Reviewed-by: Benny Halevy <bhalevy@panasas.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
This commit is contained in:
Boaz Harrosh
James Bottomley
parent
82443a58d3
commit
de258bf5e6
4 changed files with 914 additions and 0 deletions
332
include/scsi/osd_initiator.h
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332
include/scsi/osd_initiator.h
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/*
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* osd_initiator.h - OSD initiator API definition
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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 <bharrosh@panasas.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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*/
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#ifndef __OSD_INITIATOR_H__
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#define __OSD_INITIATOR_H__
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#include "osd_protocol.h"
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#include "osd_types.h"
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#include <linux/blkdev.h>
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/* Note: "NI" in comments below means "Not Implemented yet" */
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/*
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* Object-based Storage Device.
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* This object represents an OSD device.
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* It is not a full linux device in any way. It is only
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* a place to hang resources associated with a Linux
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* request Q and some default properties.
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*/
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struct osd_dev {
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struct scsi_device *scsi_device;
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unsigned def_timeout;
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};
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void osd_dev_init(struct osd_dev *od, struct scsi_device *scsi_device);
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void osd_dev_fini(struct osd_dev *od);
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struct osd_request;
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typedef void (osd_req_done_fn)(struct osd_request *or, void *private);
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struct osd_request {
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struct osd_cdb cdb;
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struct osd_data_out_integrity_info out_data_integ;
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struct osd_data_in_integrity_info in_data_integ;
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struct osd_dev *osd_dev;
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struct request *request;
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struct _osd_req_data_segment {
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void *buff;
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unsigned alloc_size; /* 0 here means: don't call kfree */
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unsigned total_bytes;
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} set_attr, enc_get_attr, get_attr;
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struct _osd_io_info {
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struct bio *bio;
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u64 total_bytes;
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struct request *req;
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struct _osd_req_data_segment *last_seg;
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u8 *pad_buff;
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} out, in;
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gfp_t alloc_flags;
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unsigned timeout;
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unsigned retries;
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u8 sense[OSD_MAX_SENSE_LEN];
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enum osd_attributes_mode attributes_mode;
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osd_req_done_fn *async_done;
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void *async_private;
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int async_error;
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};
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/*
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* How to use the osd library:
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*
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* osd_start_request
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* Allocates a request.
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*
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* osd_req_*
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* Call one of, to encode the desired operation.
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*
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* osd_add_{get,set}_attr
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* Optionally add attributes to the CDB, list or page mode.
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*
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* osd_finalize_request
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* Computes final data out/in offsets and signs the request,
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* making it ready for execution.
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*
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* osd_execute_request
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* May be called to execute it through the block layer. Other wise submit
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* the associated block request in some other way.
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*
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* After execution:
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* osd_req_decode_sense
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* Decodes sense information to verify execution results.
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*
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* osd_req_decode_get_attr
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* Retrieve osd_add_get_attr_list() values if used.
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*
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* osd_end_request
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* Must be called to deallocate the request.
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*/
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/**
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* osd_start_request - Allocate and initialize an osd_request
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*
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* @osd_dev: OSD device that holds the scsi-device and default values
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* that the request is associated with.
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* @gfp: The allocation flags to use for request allocation, and all
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* subsequent allocations. This will be stored at
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* osd_request->alloc_flags, can be changed by user later
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*
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* Allocate osd_request and initialize all members to the
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* default/initial state.
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*/
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struct osd_request *osd_start_request(struct osd_dev *od, gfp_t gfp);
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enum osd_req_options {
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OSD_REQ_FUA = 0x08, /* Force Unit Access */
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OSD_REQ_DPO = 0x10, /* Disable Page Out */
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OSD_REQ_BYPASS_TIMESTAMPS = 0x80,
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};
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/**
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* osd_finalize_request - Sign request and prepare request for execution
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*
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* @or: osd_request to prepare
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* @options: combination of osd_req_options bit flags or 0.
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* @cap: A Pointer to an OSD_CAP_LEN bytes buffer that is received from
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* The security manager as capabilities for this cdb.
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* @cap_key: The cryptographic key used to sign the cdb/data. Can be null
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* if NOSEC is used.
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*
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* The actual request and bios are only allocated here, so are the get_attr
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* buffers that will receive the returned attributes. Copy's @cap to cdb.
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* Sign the cdb/data with @cap_key.
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*/
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int osd_finalize_request(struct osd_request *or,
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u8 options, const void *cap, const u8 *cap_key);
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/**
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* osd_execute_request - Execute the request synchronously through block-layer
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*
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* @or: osd_request to Executed
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*
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* Calls blk_execute_rq to q the command and waits for completion.
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*/
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int osd_execute_request(struct osd_request *or);
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/**
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* osd_execute_request_async - Execute the request without waitting.
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*
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* @or: - osd_request to Executed
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* @done: (Optional) - Called at end of execution
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* @private: - Will be passed to @done function
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*
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* Calls blk_execute_rq_nowait to queue the command. When execution is done
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* optionally calls @done with @private as parameter. @or->async_error will
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* have the return code
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*/
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int osd_execute_request_async(struct osd_request *or,
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osd_req_done_fn *done, void *private);
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/**
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* osd_end_request - return osd_request to free store
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*
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* @or: osd_request to free
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*
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* Deallocate all osd_request resources (struct req's, BIOs, buffers, etc.)
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*/
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void osd_end_request(struct osd_request *or);
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/*
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* CDB Encoding
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*
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* Note: call only one of the following methods.
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*/
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/*
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* Device commands
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*/
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void osd_req_set_master_seed_xchg(struct osd_request *or, ...);/* NI */
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void osd_req_set_master_key(struct osd_request *or, ...);/* NI */
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void osd_req_format(struct osd_request *or, u64 tot_capacity);
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/* list all partitions
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* @list header must be initialized to zero on first run.
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*
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* Call osd_is_obj_list_done() to find if we got the complete list.
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*/
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int osd_req_list_dev_partitions(struct osd_request *or,
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osd_id initial_id, struct osd_obj_id_list *list, unsigned nelem);
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void osd_req_flush_obsd(struct osd_request *or,
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enum osd_options_flush_scope_values);
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void osd_req_perform_scsi_command(struct osd_request *or,
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const u8 *cdb, ...);/* NI */
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void osd_req_task_management(struct osd_request *or, ...);/* NI */
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/*
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* Partition commands
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*/
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void osd_req_create_partition(struct osd_request *or, osd_id partition);
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void osd_req_remove_partition(struct osd_request *or, osd_id partition);
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void osd_req_set_partition_key(struct osd_request *or,
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osd_id partition, u8 new_key_id[OSD_CRYPTO_KEYID_SIZE],
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u8 seed[OSD_CRYPTO_SEED_SIZE]);/* NI */
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/* list all collections in the partition
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* @list header must be init to zero on first run.
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*
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* Call osd_is_obj_list_done() to find if we got the complete list.
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*/
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int osd_req_list_partition_collections(struct osd_request *or,
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osd_id partition, osd_id initial_id, struct osd_obj_id_list *list,
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unsigned nelem);
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/* list all objects in the partition
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* @list header must be init to zero on first run.
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*
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* Call osd_is_obj_list_done() to find if we got the complete list.
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*/
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int osd_req_list_partition_objects(struct osd_request *or,
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osd_id partition, osd_id initial_id, struct osd_obj_id_list *list,
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unsigned nelem);
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void osd_req_flush_partition(struct osd_request *or,
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osd_id partition, enum osd_options_flush_scope_values);
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/*
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* Collection commands
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*/
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void osd_req_create_collection(struct osd_request *or,
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const struct osd_obj_id *);/* NI */
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void osd_req_remove_collection(struct osd_request *or,
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const struct osd_obj_id *);/* NI */
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/* list all objects in the collection */
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int osd_req_list_collection_objects(struct osd_request *or,
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const struct osd_obj_id *, osd_id initial_id,
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struct osd_obj_id_list *list, unsigned nelem);
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/* V2 only filtered list of objects in the collection */
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void osd_req_query(struct osd_request *or, ...);/* NI */
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void osd_req_flush_collection(struct osd_request *or,
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const struct osd_obj_id *, enum osd_options_flush_scope_values);
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void osd_req_get_member_attrs(struct osd_request *or, ...);/* V2-only NI */
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void osd_req_set_member_attrs(struct osd_request *or, ...);/* V2-only NI */
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/*
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* Object commands
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*/
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void osd_req_create_object(struct osd_request *or, struct osd_obj_id *);
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void osd_req_remove_object(struct osd_request *or, struct osd_obj_id *);
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void osd_req_write(struct osd_request *or,
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const struct osd_obj_id *, struct bio *data_out, u64 offset);
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void osd_req_append(struct osd_request *or,
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const struct osd_obj_id *, struct bio *data_out);/* NI */
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void osd_req_create_write(struct osd_request *or,
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const struct osd_obj_id *, struct bio *data_out, u64 offset);/* NI */
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void osd_req_clear(struct osd_request *or,
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const struct osd_obj_id *, u64 offset, u64 len);/* NI */
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void osd_req_punch(struct osd_request *or,
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const struct osd_obj_id *, u64 offset, u64 len);/* V2-only NI */
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void osd_req_flush_object(struct osd_request *or,
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const struct osd_obj_id *, enum osd_options_flush_scope_values,
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/*V2*/ u64 offset, /*V2*/ u64 len);
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void osd_req_read(struct osd_request *or,
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const struct osd_obj_id *, struct bio *data_in, u64 offset);
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/*
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* Root/Partition/Collection/Object Attributes commands
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*/
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/* get before set */
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void osd_req_get_attributes(struct osd_request *or, const struct osd_obj_id *);
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/* set before get */
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void osd_req_set_attributes(struct osd_request *or, const struct osd_obj_id *);
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/*
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* Attributes appended to most commands
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*/
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/* Attributes List mode (or V2 CDB) */
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/*
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* TODO: In ver2 if at finalize time only one attr was set and no gets,
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* then the Attributes CDB mode is used automatically to save IO.
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*/
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/* set a list of attributes. */
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int osd_req_add_set_attr_list(struct osd_request *or,
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const struct osd_attr *, unsigned nelem);
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/* get a list of attributes */
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int osd_req_add_get_attr_list(struct osd_request *or,
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const struct osd_attr *, unsigned nelem);
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/*
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* Attributes list decoding
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* Must be called after osd_request.request was executed
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* It is called in a loop to decode the returned get_attr
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* (see osd_add_get_attr)
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*/
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int osd_req_decode_get_attr_list(struct osd_request *or,
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struct osd_attr *, int *nelem, void **iterator);
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/* Attributes Page mode */
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/*
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* Read an attribute page and optionally set one attribute
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*
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* Retrieves the attribute page directly to a user buffer.
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* @attr_page_data shall stay valid until end of execution.
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* See osd_attributes.h for common page structures
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*/
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int osd_req_add_get_attr_page(struct osd_request *or,
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u32 page_id, void *attr_page_data, unsigned max_page_len,
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const struct osd_attr *set_one);
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#endif /* __OSD_LIB_H__ */
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497
include/scsi/osd_protocol.h
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497
include/scsi/osd_protocol.h
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/*
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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 <bharrosh@panasas.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 <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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OSD_ADDITIONAL_CDB_LENGTH = OSDv1_ADDITIONAL_CDB_LENGTH,
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OSD_TOTAL_CDB_LEN = OSDv1_TOTAL_CDB_LEN,
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OSD_CAP_LEN = OSDv1_CAP_LEN,
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OSD_SYSTEMID_LEN = 20,
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OSD_CRYPTO_KEYID_SIZE = 20,
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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 {
|
||||
* unsigned mantissa: 28;
|
||||
* int exponent: 04;
|
||||
* }
|
||||
*/
|
||||
typedef __be32 __bitwise osd_cdb_offset;
|
||||
|
||||
enum {
|
||||
OSD_OFFSET_UNUSED = 0xFFFFFFFF,
|
||||
OSD_OFFSET_MAX_BITS = 28,
|
||||
|
||||
OSDv1_OFFSET_MIN_SHIFT = 8,
|
||||
OSD_OFFSET_MAX_SHIFT = 16,
|
||||
};
|
||||
|
||||
/* Return the smallest allowed encoded offset that contains @offset.
|
||||
*
|
||||
* The actual encoded offset returned is @offset + *padding.
|
||||
* (up to max_shift, non-inclusive)
|
||||
*/
|
||||
osd_cdb_offset __osd_encode_offset(u64 offset, unsigned *padding,
|
||||
int min_shift, int max_shift);
|
||||
|
||||
/* Minimum alignment is 256 bytes
|
||||
* Note: Seems from std v1 that exponent can be from 0+8 to 0xE+8 (inclusive)
|
||||
* which is 8 to 23 but IBM code restricts it to 16, so be it.
|
||||
*/
|
||||
static inline osd_cdb_offset osd_encode_offset_v1(u64 offset, unsigned *padding)
|
||||
{
|
||||
return __osd_encode_offset(offset, padding,
|
||||
OSDv1_OFFSET_MIN_SHIFT, OSD_OFFSET_MAX_SHIFT);
|
||||
}
|
||||
|
||||
/* osd2r03: 5.2.1 Overview */
|
||||
struct osd_cdb_head {
|
||||
struct scsi_varlen_cdb_hdr varlen_cdb;
|
||||
/*10*/ u8 options;
|
||||
u8 command_specific_options;
|
||||
u8 timestamp_control;
|
||||
/*13*/ u8 reserved1[3];
|
||||
/*16*/ __be64 partition;
|
||||
/*24*/ __be64 object;
|
||||
/*32*/ union { /* V1 vs V2 alignment differences */
|
||||
struct __osdv1_cdb_addr_len {
|
||||
/*32*/ __be32 list_identifier;/* Rarely used */
|
||||
/*36*/ __be64 length;
|
||||
/*44*/ __be64 start_address;
|
||||
} __packed v1;
|
||||
};
|
||||
/*52*/ union { /* selected attributes mode Page/List/Single */
|
||||
struct osd_attributes_page_mode {
|
||||
/*52*/ __be32 get_attr_page;
|
||||
/*56*/ __be32 get_attr_alloc_length;
|
||||
/*60*/ osd_cdb_offset get_attr_offset;
|
||||
|
||||
/*64*/ __be32 set_attr_page;
|
||||
/*68*/ __be32 set_attr_id;
|
||||
/*72*/ __be32 set_attr_length;
|
||||
/*76*/ osd_cdb_offset set_attr_offset;
|
||||
/*80*/ } __packed attrs_page;
|
||||
|
||||
struct osd_attributes_list_mode {
|
||||
/*52*/ __be32 get_attr_desc_bytes;
|
||||
/*56*/ osd_cdb_offset get_attr_desc_offset;
|
||||
|
||||
/*60*/ __be32 get_attr_alloc_length;
|
||||
/*64*/ osd_cdb_offset get_attr_offset;
|
||||
|
||||
/*68*/ __be32 set_attr_bytes;
|
||||
/*72*/ osd_cdb_offset set_attr_offset;
|
||||
__be32 not_used;
|
||||
/*80*/ } __packed attrs_list;
|
||||
|
||||
/* osd2r03:5.2.4.2 Set one attribute value using CDB fields */
|
||||
struct osd_attributes_cdb_mode {
|
||||
/*52*/ __be32 set_attr_page;
|
||||
/*56*/ __be32 set_attr_id;
|
||||
/*60*/ __be16 set_attr_len;
|
||||
/*62*/ u8 set_attr_val[18];
|
||||
/*80*/ } __packed attrs_cdb;
|
||||
/*52*/ u8 get_set_attributes_parameters[28];
|
||||
};
|
||||
} __packed;
|
||||
/*80*/
|
||||
|
||||
/*160 v1*/
|
||||
struct osd_security_parameters {
|
||||
/*160*/u8 integrity_check_value[OSD_CRYPTO_KEYID_SIZE];
|
||||
/*180*/u8 request_nonce[OSD_CRYPTO_NONCE_SIZE];
|
||||
/*192*/osd_cdb_offset data_in_integrity_check_offset;
|
||||
/*196*/osd_cdb_offset data_out_integrity_check_offset;
|
||||
} __packed;
|
||||
/*200 v1*/
|
||||
|
||||
struct osdv1_cdb {
|
||||
struct osd_cdb_head h;
|
||||
u8 caps[OSDv1_CAP_LEN];
|
||||
struct osd_security_parameters sec_params;
|
||||
} __packed;
|
||||
|
||||
struct osd_cdb {
|
||||
union {
|
||||
struct osdv1_cdb v1;
|
||||
u8 buff[OSD_TOTAL_CDB_LEN];
|
||||
};
|
||||
} __packed;
|
||||
|
||||
static inline struct osd_cdb_head *osd_cdb_head(struct osd_cdb *ocdb)
|
||||
{
|
||||
return (struct osd_cdb_head *)ocdb->buff;
|
||||
}
|
||||
|
||||
/* define both version actions
|
||||
* Ex name = FORMAT_OSD we have OSD_ACT_FORMAT_OSD && OSDv1_ACT_FORMAT_OSD
|
||||
*/
|
||||
#define OSD_ACT___(Name, Num) \
|
||||
OSD_ACT_##Name = __constant_cpu_to_be16(0x8880 + Num), \
|
||||
OSDv1_ACT_##Name = __constant_cpu_to_be16(0x8800 + Num),
|
||||
|
||||
/* V2 only actions */
|
||||
#define OSD_ACT_V2(Name, Num) \
|
||||
OSD_ACT_##Name = __constant_cpu_to_be16(0x8880 + Num),
|
||||
|
||||
#define OSD_ACT_V1_V2(Name, Num1, Num2) \
|
||||
OSD_ACT_##Name = __constant_cpu_to_be16(Num2), \
|
||||
OSDv1_ACT_##Name = __constant_cpu_to_be16(Num1),
|
||||
|
||||
enum osd_service_actions {
|
||||
OSD_ACT_V2(OBJECT_STRUCTURE_CHECK, 0x00)
|
||||
OSD_ACT___(FORMAT_OSD, 0x01)
|
||||
OSD_ACT___(CREATE, 0x02)
|
||||
OSD_ACT___(LIST, 0x03)
|
||||
OSD_ACT_V2(PUNCH, 0x04)
|
||||
OSD_ACT___(READ, 0x05)
|
||||
OSD_ACT___(WRITE, 0x06)
|
||||
OSD_ACT___(APPEND, 0x07)
|
||||
OSD_ACT___(FLUSH, 0x08)
|
||||
OSD_ACT_V2(CLEAR, 0x09)
|
||||
OSD_ACT___(REMOVE, 0x0A)
|
||||
OSD_ACT___(CREATE_PARTITION, 0x0B)
|
||||
OSD_ACT___(REMOVE_PARTITION, 0x0C)
|
||||
OSD_ACT___(GET_ATTRIBUTES, 0x0E)
|
||||
OSD_ACT___(SET_ATTRIBUTES, 0x0F)
|
||||
OSD_ACT___(CREATE_AND_WRITE, 0x12)
|
||||
OSD_ACT___(CREATE_COLLECTION, 0x15)
|
||||
OSD_ACT___(REMOVE_COLLECTION, 0x16)
|
||||
OSD_ACT___(LIST_COLLECTION, 0x17)
|
||||
OSD_ACT___(SET_KEY, 0x18)
|
||||
OSD_ACT___(SET_MASTER_KEY, 0x19)
|
||||
OSD_ACT___(FLUSH_COLLECTION, 0x1A)
|
||||
OSD_ACT___(FLUSH_PARTITION, 0x1B)
|
||||
OSD_ACT___(FLUSH_OSD, 0x1C)
|
||||
|
||||
OSD_ACT_V2(QUERY, 0x20)
|
||||
OSD_ACT_V2(REMOVE_MEMBER_OBJECTS, 0x21)
|
||||
OSD_ACT_V2(GET_MEMBER_ATTRIBUTES, 0x22)
|
||||
OSD_ACT_V2(SET_MEMBER_ATTRIBUTES, 0x23)
|
||||
OSD_ACT_V2(READ_MAP, 0x31)
|
||||
|
||||
OSD_ACT_V1_V2(PERFORM_SCSI_COMMAND, 0x8F7E, 0x8F7C)
|
||||
OSD_ACT_V1_V2(SCSI_TASK_MANAGEMENT, 0x8F7F, 0x8F7D)
|
||||
/* 0x8F80 to 0x8FFF are Vendor specific */
|
||||
};
|
||||
|
||||
/* osd2r03: 7.1.3.2 List entry format for retrieving attributes */
|
||||
struct osd_attributes_list_attrid {
|
||||
__be32 attr_page;
|
||||
__be32 attr_id;
|
||||
} __packed;
|
||||
|
||||
/*
|
||||
* osd2r03: 7.1.3.3 List entry format for retrieved attributes and
|
||||
* for setting attributes
|
||||
*/
|
||||
struct osd_attributes_list_element {
|
||||
__be32 attr_page;
|
||||
__be32 attr_id;
|
||||
__be16 attr_bytes;
|
||||
u8 attr_val[0];
|
||||
} __packed;
|
||||
|
||||
enum {
|
||||
OSDv1_ATTRIBUTES_ELEM_ALIGN = 1,
|
||||
};
|
||||
|
||||
enum {
|
||||
OSD_ATTR_LIST_ALL_PAGES = 0xFFFFFFFF,
|
||||
OSD_ATTR_LIST_ALL_IN_PAGE = 0xFFFFFFFF,
|
||||
};
|
||||
|
||||
static inline unsigned osdv1_attr_list_elem_size(unsigned len)
|
||||
{
|
||||
return ALIGN(len + sizeof(struct osd_attributes_list_element),
|
||||
OSDv1_ATTRIBUTES_ELEM_ALIGN);
|
||||
}
|
||||
|
||||
/*
|
||||
* osd2r03: 7.1.3 OSD attributes lists (Table 184) — List type values
|
||||
*/
|
||||
enum osd_attr_list_types {
|
||||
OSD_ATTR_LIST_GET = 0x1, /* descriptors only */
|
||||
OSD_ATTR_LIST_SET_RETRIEVE = 0x9, /*descriptors/values variable-length*/
|
||||
OSD_V2_ATTR_LIST_MULTIPLE = 0xE, /* ver2, Multiple Objects lists*/
|
||||
OSD_V1_ATTR_LIST_CREATE_MULTIPLE = 0xF,/*ver1, used by create_multple*/
|
||||
};
|
||||
|
||||
/* osd2r03: 7.1.3.4 Multi-object retrieved attributes format */
|
||||
struct osd_attributes_list_multi_header {
|
||||
__be64 object_id;
|
||||
u8 object_type; /* object_type enum below */
|
||||
u8 reserved[5];
|
||||
__be16 list_bytes;
|
||||
/* followed by struct osd_attributes_list_element's */
|
||||
};
|
||||
|
||||
struct osdv1_attributes_list_header {
|
||||
u8 type; /* low 4-bit only */
|
||||
u8 pad;
|
||||
__be16 list_bytes; /* Initiator shall set to Zero. Only set by target */
|
||||
/*
|
||||
* type=9 followed by struct osd_attributes_list_element's
|
||||
* type=E followed by struct osd_attributes_list_multi_header's
|
||||
*/
|
||||
} __packed;
|
||||
|
||||
static inline unsigned osdv1_list_size(struct osdv1_attributes_list_header *h)
|
||||
{
|
||||
return be16_to_cpu(h->list_bytes);
|
||||
}
|
||||
|
||||
/* (osd-r10 6.13)
|
||||
* osd2r03: 6.15 LIST (Table 79) LIST command parameter data.
|
||||
* for root_lstchg below
|
||||
*/
|
||||
enum {
|
||||
OSD_OBJ_ID_LIST_PAR = 0x1, /* V1-only. Not used in V2 */
|
||||
OSD_OBJ_ID_LIST_LSTCHG = 0x2,
|
||||
};
|
||||
|
||||
/*
|
||||
* osd2r03: 6.15.2 LIST command parameter data
|
||||
* (Also for LIST COLLECTION)
|
||||
*/
|
||||
struct osd_obj_id_list {
|
||||
__be64 list_bytes; /* bytes in list excluding list_bytes (-8) */
|
||||
__be64 continuation_id;
|
||||
__be32 list_identifier;
|
||||
u8 pad[3];
|
||||
u8 root_lstchg;
|
||||
__be64 object_ids[0];
|
||||
} __packed;
|
||||
|
||||
static inline bool osd_is_obj_list_done(struct osd_obj_id_list *list,
|
||||
bool *is_changed)
|
||||
{
|
||||
*is_changed = (0 != (list->root_lstchg & OSD_OBJ_ID_LIST_LSTCHG));
|
||||
return 0 != list->continuation_id;
|
||||
}
|
||||
|
||||
/*
|
||||
* osd2r03: 4.12.4.5 The ALLDATA security method
|
||||
*/
|
||||
struct osd_data_out_integrity_info {
|
||||
__be64 data_bytes;
|
||||
__be64 set_attributes_bytes;
|
||||
__be64 get_attributes_bytes;
|
||||
__be64 integrity_check_value;
|
||||
} __packed;
|
||||
|
||||
struct osd_data_in_integrity_info {
|
||||
__be64 data_bytes;
|
||||
__be64 retrieved_attributes_bytes;
|
||||
__be64 integrity_check_value;
|
||||
} __packed;
|
||||
|
||||
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 bharrosh@panasas.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_CAP_NONE3 = BIT(10),
|
||||
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*/
|
||||
|
||||
struct osd_capability {
|
||||
struct osd_capability_head h;
|
||||
struct osdv1_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);
|
||||
}
|
||||
|
||||
#endif /* ndef __OSD_PROTOCOL_H__ */
|
||||
45
include/scsi/osd_sec.h
Normal file
45
include/scsi/osd_sec.h
Normal file
|
|
@ -0,0 +1,45 @@
|
|||
/*
|
||||
* osd_sec.h - OSD security manager API
|
||||
*
|
||||
* Copyright (C) 2008 Panasas Inc. All rights reserved.
|
||||
*
|
||||
* Authors:
|
||||
* Boaz Harrosh <bharrosh@panasas.com>
|
||||
* Benny Halevy <bhalevy@panasas.com>
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License version 2
|
||||
*
|
||||
*/
|
||||
#ifndef __OSD_SEC_H__
|
||||
#define __OSD_SEC_H__
|
||||
|
||||
#include "osd_protocol.h"
|
||||
#include "osd_types.h"
|
||||
|
||||
/*
|
||||
* Contains types and constants of osd capabilities and security
|
||||
* encoding/decoding.
|
||||
* API is trying to keep security abstract so initiator of an object
|
||||
* based pNFS client knows as little as possible about security and
|
||||
* capabilities. It is the Server's osd-initiator place to know more.
|
||||
* Also can be used by osd-target.
|
||||
*/
|
||||
void osd_sec_encode_caps(void *caps, ...);/* NI */
|
||||
void osd_sec_init_nosec_doall_caps(void *caps,
|
||||
const struct osd_obj_id *obj, bool is_collection, const bool is_v1);
|
||||
|
||||
bool osd_is_sec_alldata(struct osd_security_parameters *sec_params);
|
||||
|
||||
/* Conditionally sign the CDB according to security setting in ocdb
|
||||
* with cap_key */
|
||||
void osd_sec_sign_cdb(struct osd_cdb *ocdb, const u8 *cap_key);
|
||||
|
||||
/* Unconditionally sign the BIO data with cap_key.
|
||||
* Check for osd_is_sec_alldata() was done prior to calling this. */
|
||||
void osd_sec_sign_data(void *data_integ, struct bio *bio, const u8 *cap_key);
|
||||
|
||||
/* Version independent copy of caps into the cdb */
|
||||
void osd_set_caps(struct osd_cdb *cdb, const void *caps);
|
||||
|
||||
#endif /* ndef __OSD_SEC_H__ */
|
||||
40
include/scsi/osd_types.h
Normal file
40
include/scsi/osd_types.h
Normal file
|
|
@ -0,0 +1,40 @@
|
|||
/*
|
||||
* osd_types.h - Types and constants which are not part of the protocol.
|
||||
*
|
||||
* Copyright (C) 2008 Panasas Inc. All rights reserved.
|
||||
*
|
||||
* Authors:
|
||||
* Boaz Harrosh <bharrosh@panasas.com>
|
||||
* Benny Halevy <bhalevy@panasas.com>
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License version 2
|
||||
*
|
||||
* Contains types and constants that are implementation specific and are
|
||||
* used by more than one part of the osd library.
|
||||
* (Eg initiator/target/security_manager/...)
|
||||
*/
|
||||
#ifndef __OSD_TYPES_H__
|
||||
#define __OSD_TYPES_H__
|
||||
|
||||
struct osd_systemid {
|
||||
u8 data[OSD_SYSTEMID_LEN];
|
||||
};
|
||||
|
||||
typedef u64 __bitwise osd_id;
|
||||
|
||||
struct osd_obj_id {
|
||||
osd_id partition;
|
||||
osd_id id;
|
||||
};
|
||||
|
||||
static const struct __weak osd_obj_id osd_root_object = {0, 0};
|
||||
|
||||
struct osd_attr {
|
||||
u32 attr_page;
|
||||
u32 attr_id;
|
||||
u16 len; /* byte count of operand */
|
||||
void *val_ptr; /* in network order */
|
||||
};
|
||||
|
||||
#endif /* ndef __OSD_TYPES_H__ */
|
||||
Loading…
Reference in a new issue