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Illumos Crypto Port module added to enable native encryption in zfs

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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
This commit is contained in:
Tom Caputi
2016-05-12 10:51:24 -04:00
committed by Brian Behlendorf
parent be88e733a6
commit 0b04990a5d
90 changed files with 35834 additions and 80 deletions
Download Patch File Download Diff File Expand all files Collapse all files
include/sys/zfs_context.h
+27 -1
View File
@@ -62,6 +62,7 @@
#include <vm/seg_kmem.h>
#include <sys/zone.h>
#include <sys/sdt.h>
#include <sys/kstat.h>
#include <sys/zfs_debug.h>
#include <sys/zfs_delay.h>
#include <sys/fm/fs/zfs.h>
@@ -445,7 +446,9 @@ typedef enum kmem_cbrc {
/*
* Task queues
*/
typedef struct taskq taskq_t;
#define TASKQ_NAMELEN 31
typedef uintptr_t taskqid_t;
typedef void (task_func_t)(void *);
@@ -457,6 +460,25 @@ typedef struct taskq_ent {
uintptr_t tqent_flags;
} taskq_ent_t;
typedef struct taskq {
char tq_name[TASKQ_NAMELEN + 1];
kmutex_t tq_lock;
krwlock_t tq_threadlock;
kcondvar_t tq_dispatch_cv;
kcondvar_t tq_wait_cv;
kthread_t **tq_threadlist;
int tq_flags;
int tq_active;
int tq_nthreads;
int tq_nalloc;
int tq_minalloc;
int tq_maxalloc;
kcondvar_t tq_maxalloc_cv;
int tq_maxalloc_wait;
taskq_ent_t *tq_freelist;
taskq_ent_t tq_task;
} taskq_t;
#define TQENT_FLAG_PREALLOC 0x1 /* taskq_dispatch_ent used */
#define TASKQ_PREPOPULATE 0x0001
@@ -651,6 +673,8 @@ extern uint64_t physmem;
extern int highbit64(uint64_t i);
extern int lowbit64(uint64_t i);
extern int highbit(ulong_t i);
extern int lowbit(ulong_t i);
extern int random_get_bytes(uint8_t *ptr, size_t len);
extern int random_get_pseudo_bytes(uint8_t *ptr, size_t len);
@@ -658,6 +682,8 @@ extern void kernel_init(int);
extern void kernel_fini(void);
extern void thread_init(void);
extern void thread_fini(void);
extern void random_init(void);
extern void random_fini(void);
struct spa;
extern void nicenum(uint64_t num, char *buf);