38e6b19eaf
Changes in 4.9.178
net: core: another layer of lists, around PF_MEMALLOC skb handling
locking/rwsem: Prevent decrement of reader count before increment
PCI: hv: Fix a memory leak in hv_eject_device_work()
x86/speculation/mds: Revert CPU buffer clear on double fault exit
x86/speculation/mds: Improve CPU buffer clear documentation
objtool: Fix function fallthrough detection
ARM: exynos: Fix a leaked reference by adding missing of_node_put
power: supply: axp288_charger: Fix unchecked return value
arm64: compat: Reduce address limit
arm64: Clear OSDLR_EL1 on CPU boot
sched/x86: Save [ER]FLAGS on context switch
crypto: chacha20poly1305 - set cra_name correctly
crypto: vmx - fix copy-paste error in CTR mode
crypto: crct10dif-generic - fix use via crypto_shash_digest()
crypto: x86/crct10dif-pcl - fix use via crypto_shash_digest()
ALSA: usb-audio: Fix a memory leak bug
ALSA: hda/hdmi - Read the pin sense from register when repolling
ALSA: hda/hdmi - Consider eld_valid when reporting jack event
ALSA: hda/realtek - EAPD turn on later
ASoC: max98090: Fix restore of DAPM Muxes
ASoC: RT5677-SPI: Disable 16Bit SPI Transfers
mm/mincore.c: make mincore() more conservative
ocfs2: fix ocfs2 read inode data panic in ocfs2_iget
mfd: da9063: Fix OTP control register names to match datasheets for DA9063/63L
mfd: max77620: Fix swapped FPS_PERIOD_MAX_US values
tty/vt: fix write/write race in ioctl(KDSKBSENT) handler
jbd2: check superblock mapped prior to committing
ext4: actually request zeroing of inode table after grow
ext4: fix ext4_show_options for file systems w/o journal
Btrfs: do not start a transaction at iterate_extent_inodes()
bcache: fix a race between cache register and cacheset unregister
bcache: never set KEY_PTRS of journal key to 0 in journal_reclaim()
ipmi:ssif: compare block number correctly for multi-part return messages
crypto: gcm - Fix error return code in crypto_gcm_create_common()
crypto: gcm - fix incompatibility between "gcm" and "gcm_base"
crypto: salsa20 - don't access already-freed walk.iv
crypto: arm/aes-neonbs - don't access already-freed walk.iv
fib_rules: fix error in backport of e9919a24d302 ("fib_rules: return 0...")
writeback: synchronize sync(2) against cgroup writeback membership switches
fs/writeback.c: use rcu_barrier() to wait for inflight wb switches going into workqueue when umount
ext4: zero out the unused memory region in the extent tree block
ext4: fix data corruption caused by overlapping unaligned and aligned IO
ALSA: hda/realtek - Fix for Lenovo B50-70 inverted internal microphone bug
KVM: x86: Skip EFER vs. guest CPUID checks for host-initiated writes
Linux 4.9.178
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
123 lines
3.1 KiB
C
123 lines
3.1 KiB
C
/*
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* Cryptographic API.
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*
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* T10 Data Integrity Field CRC16 Crypto Transform
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*
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* Copyright (c) 2007 Oracle Corporation. All rights reserved.
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* Written by Martin K. Petersen <martin.petersen@oracle.com>
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* Copyright (C) 2013 Intel Corporation
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* Author: Tim Chen <tim.c.chen@linux.intel.com>
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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 Free
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* Software Foundation; either version 2 of the License, or (at your option)
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* any later version.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*
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*/
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#include <linux/module.h>
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#include <linux/crc-t10dif.h>
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#include <crypto/internal/hash.h>
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#include <linux/init.h>
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#include <linux/kernel.h>
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struct chksum_desc_ctx {
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__u16 crc;
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};
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/*
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* Steps through buffer one byte at at time, calculates reflected
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* crc using table.
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*/
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static int chksum_init(struct shash_desc *desc)
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{
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struct chksum_desc_ctx *ctx = shash_desc_ctx(desc);
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ctx->crc = 0;
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return 0;
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}
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static int chksum_update(struct shash_desc *desc, const u8 *data,
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unsigned int length)
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{
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struct chksum_desc_ctx *ctx = shash_desc_ctx(desc);
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ctx->crc = crc_t10dif_generic(ctx->crc, data, length);
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return 0;
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}
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static int chksum_final(struct shash_desc *desc, u8 *out)
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{
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struct chksum_desc_ctx *ctx = shash_desc_ctx(desc);
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*(__u16 *)out = ctx->crc;
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return 0;
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}
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static int __chksum_finup(__u16 crc, const u8 *data, unsigned int len, u8 *out)
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{
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*(__u16 *)out = crc_t10dif_generic(crc, data, len);
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return 0;
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}
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static int chksum_finup(struct shash_desc *desc, const u8 *data,
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unsigned int len, u8 *out)
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{
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struct chksum_desc_ctx *ctx = shash_desc_ctx(desc);
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return __chksum_finup(ctx->crc, data, len, out);
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}
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static int chksum_digest(struct shash_desc *desc, const u8 *data,
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unsigned int length, u8 *out)
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{
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return __chksum_finup(0, data, length, out);
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}
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static struct shash_alg alg = {
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.digestsize = CRC_T10DIF_DIGEST_SIZE,
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.init = chksum_init,
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.update = chksum_update,
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.final = chksum_final,
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.finup = chksum_finup,
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.digest = chksum_digest,
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.descsize = sizeof(struct chksum_desc_ctx),
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.base = {
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.cra_name = "crct10dif",
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.cra_driver_name = "crct10dif-generic",
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.cra_priority = 100,
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.cra_blocksize = CRC_T10DIF_BLOCK_SIZE,
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.cra_module = THIS_MODULE,
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}
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};
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static int __init crct10dif_mod_init(void)
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{
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return crypto_register_shash(&alg);
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}
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static void __exit crct10dif_mod_fini(void)
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{
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crypto_unregister_shash(&alg);
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}
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module_init(crct10dif_mod_init);
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module_exit(crct10dif_mod_fini);
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MODULE_AUTHOR("Tim Chen <tim.c.chen@linux.intel.com>");
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MODULE_DESCRIPTION("T10 DIF CRC calculation.");
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MODULE_LICENSE("GPL");
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MODULE_ALIAS_CRYPTO("crct10dif");
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MODULE_ALIAS_CRYPTO("crct10dif-generic");
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