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2a709f28fa
* 0day explit mitigation * Memory corruption prevention * Privilege escalation prevention * Buffer over flow prevention * File System corruption defense * Thread escape prevention This may very well be the most intensive inclusion to BrooklynR. This will not be part of an x86 suite nor it will be released as tool kit. The security core toolkit will remain part of kernel base.
103 lines
3.2 KiB
C
103 lines
3.2 KiB
C
/*
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* Header file for SCSI device handler infrastruture.
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*
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* Modified version of patches posted by Mike Christie <michaelc@cs.wisc.edu>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*
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* Copyright IBM Corporation, 2007
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* Authors:
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* Chandra Seetharaman <sekharan@us.ibm.com>
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* Mike Anderson <andmike@linux.vnet.ibm.com>
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*/
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#include <scsi/scsi_device.h>
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enum {
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SCSI_DH_OK = 0,
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/*
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* device errors
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*/
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SCSI_DH_DEV_FAILED, /* generic device error */
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SCSI_DH_DEV_TEMP_BUSY,
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SCSI_DH_DEV_UNSUPP, /* device handler not supported */
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SCSI_DH_DEVICE_MAX, /* max device blkerr definition */
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/*
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* transport errors
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*/
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SCSI_DH_NOTCONN = SCSI_DH_DEVICE_MAX + 1,
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SCSI_DH_CONN_FAILURE,
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SCSI_DH_TRANSPORT_MAX, /* max transport blkerr definition */
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/*
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* driver and generic errors
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*/
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SCSI_DH_IO = SCSI_DH_TRANSPORT_MAX + 1, /* generic error */
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SCSI_DH_INVALID_IO,
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SCSI_DH_RETRY, /* retry the req, but not immediately */
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SCSI_DH_IMM_RETRY, /* immediately retry the req */
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SCSI_DH_TIMED_OUT,
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SCSI_DH_RES_TEMP_UNAVAIL,
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SCSI_DH_DEV_OFFLINED,
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SCSI_DH_NOMEM,
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SCSI_DH_NOSYS,
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SCSI_DH_DRIVER_MAX,
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};
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typedef void (*activate_complete)(void *, int);
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struct scsi_device_handler {
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/* Used by the infrastructure */
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struct list_head list; /* list of scsi_device_handlers */
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/* Filled by the hardware handler */
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struct module *module;
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const char *name;
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int (*check_sense)(struct scsi_device *, struct scsi_sense_hdr *);
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int (*attach)(struct scsi_device *);
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void (*detach)(struct scsi_device *);
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int (*activate)(struct scsi_device *, activate_complete, void *);
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int (*prep_fn)(struct scsi_device *, struct request *);
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int (*set_params)(struct scsi_device *, const char *);
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void (*rescan)(struct scsi_device *);
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};
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#ifdef CONFIG_SCSI_DH
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extern int scsi_dh_activate(struct request_queue *, activate_complete, void *);
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extern int scsi_dh_attach(struct request_queue *, const char *);
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extern const char *scsi_dh_attached_handler_name(struct request_queue *, gfp_t);
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extern int scsi_dh_set_params(struct request_queue *, const char *);
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#else
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static inline int scsi_dh_activate(struct request_queue *req,
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activate_complete fn, void *data)
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{
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fn(data, 0);
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return 0;
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}
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static inline int scsi_dh_attach(struct request_queue *req, const char *name)
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{
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return SCSI_DH_NOSYS;
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}
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static inline const char *scsi_dh_attached_handler_name(struct request_queue *q,
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gfp_t gfp)
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{
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return NULL;
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}
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static inline int scsi_dh_set_params(struct request_queue *req, const char *params)
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{
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return -SCSI_DH_NOSYS;
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}
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#endif
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