mirror of
https://git.proxmox.com/git/mirror_zfs.git
synced 2025-10-26 18:05:04 +03:00
0b04990a5d
A port of the Illumos Crypto Framework to a Linux kernel module (found in module/icp). This is needed to do the actual encryption work. We cannot use the Linux kernel's built in crypto api because it is only exported to GPL-licensed modules. Having the ICP also means the crypto code can run on any of the other kernels under OpenZFS. I ended up porting over most of the internals of the framework, which means that porting over other API calls (if we need them) should be fairly easy. Specifically, I have ported over the API functions related to encryption, digests, macs, and crypto templates. The ICP is able to use assembly-accelerated encryption on amd64 machines and AES-NI instructions on Intel chips that support it. There are place-holder directories for similar assembly optimizations for other architectures (although they have not been written). Signed-off-by: Tom Caputi <tcaputi@datto.com> Signed-off-by: Tony Hutter <hutter2@llnl.gov> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Issue #4329
109 lines
3.1 KiB
C
109 lines
3.1 KiB
C
/*
|
|
* CDDL HEADER START
|
|
*
|
|
* The contents of this file are subject to the terms of the
|
|
* Common Development and Distribution License (the "License").
|
|
* You may not use this file except in compliance with the License.
|
|
*
|
|
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
|
|
* or http://www.opensolaris.org/os/licensing.
|
|
* See the License for the specific language governing permissions
|
|
* and limitations under the License.
|
|
*
|
|
* When distributing Covered Code, include this CDDL HEADER in each
|
|
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
|
|
* If applicable, add the following below this CDDL HEADER, with the
|
|
* fields enclosed by brackets "[]" replaced with your own identifying
|
|
* information: Portions Copyright [yyyy] [name of copyright owner]
|
|
*
|
|
* CDDL HEADER END
|
|
*/
|
|
/*
|
|
* Copyright 2006 Sun Microsystems, Inc. All rights reserved.
|
|
* Use is subject to license terms.
|
|
*/
|
|
|
|
#ifndef _SYS_MODHASH_IMPL_H
|
|
#define _SYS_MODHASH_IMPL_H
|
|
|
|
/*
|
|
* Internal details for the kernel's generic hash implementation.
|
|
*/
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
#include <sys/zfs_context.h>
|
|
#include <sys/modhash.h>
|
|
|
|
struct mod_hash_entry {
|
|
mod_hash_key_t mhe_key; /* stored hash key */
|
|
mod_hash_val_t mhe_val; /* stored hash value */
|
|
struct mod_hash_entry *mhe_next; /* next item in chain */
|
|
};
|
|
|
|
struct mod_hash_stat {
|
|
ulong_t mhs_hit; /* tried a 'find' and it succeeded */
|
|
ulong_t mhs_miss; /* tried a 'find' but it failed */
|
|
ulong_t mhs_coll; /* occur when insert fails because of dup's */
|
|
ulong_t mhs_nelems; /* total number of stored key/value pairs */
|
|
ulong_t mhs_nomem; /* number of times kmem_alloc failed */
|
|
};
|
|
|
|
struct mod_hash {
|
|
krwlock_t mh_contents; /* lock protecting contents */
|
|
char *mh_name; /* hash name */
|
|
int mh_sleep; /* kmem_alloc flag */
|
|
size_t mh_nchains; /* # of elements in mh_entries */
|
|
|
|
/* key and val destructor */
|
|
void (*mh_kdtor)(mod_hash_key_t);
|
|
void (*mh_vdtor)(mod_hash_val_t);
|
|
|
|
/* key comparator */
|
|
int (*mh_keycmp)(mod_hash_key_t, mod_hash_key_t);
|
|
|
|
/* hash algorithm, and algorithm-private data */
|
|
uint_t (*mh_hashalg)(void *, mod_hash_key_t);
|
|
void *mh_hashalg_data;
|
|
|
|
struct mod_hash *mh_next; /* next hash in list */
|
|
|
|
struct mod_hash_stat mh_stat;
|
|
|
|
struct mod_hash_entry *mh_entries[1];
|
|
};
|
|
|
|
/*
|
|
* MH_SIZE()
|
|
* Compute the size of a mod_hash_t, in bytes, given the number of
|
|
* elements it contains.
|
|
*/
|
|
#define MH_SIZE(n) \
|
|
(sizeof (mod_hash_t) + ((n) - 1) * (sizeof (struct mod_hash_entry *)))
|
|
|
|
/*
|
|
* Module initialization; called once.
|
|
*/
|
|
void mod_hash_fini(void);
|
|
void mod_hash_init(void);
|
|
|
|
/*
|
|
* Internal routines. Use directly with care.
|
|
*/
|
|
uint_t i_mod_hash(mod_hash_t *, mod_hash_key_t);
|
|
int i_mod_hash_insert_nosync(mod_hash_t *, mod_hash_key_t, mod_hash_val_t,
|
|
mod_hash_hndl_t);
|
|
int i_mod_hash_remove_nosync(mod_hash_t *, mod_hash_key_t, mod_hash_val_t *);
|
|
int i_mod_hash_find_nosync(mod_hash_t *, mod_hash_key_t, mod_hash_val_t *);
|
|
void i_mod_hash_walk_nosync(mod_hash_t *, uint_t (*)(mod_hash_key_t,
|
|
mod_hash_val_t *, void *), void *);
|
|
void i_mod_hash_clear_nosync(mod_hash_t *hash);
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /* _SYS_MODHASH_IMPL_H */
|