FM / linux

/usr/src/kernels/4.18.0-553.121.1.el8_10.x86_64/include/linux/

/usr/src/kernels/4.18.0-553.121.1.el8_10.x86_64/include/linux

Name	Size	Mode	Actions
amba/	-	0755	rm
avf/	-	0755	rm
bcma/	-	0755	rm
byteorder/	-	0755	rm
can/	-	0755	rm
ceph/	-	0755	rm
clk/	-	0755	rm
crush/	-	0755	rm
decompress/	-	0755	rm
dma/	-	0755	rm
dsa/	-	0755	rm
extcon/	-	0755	rm
firmware/	-	0755	rm
fpga/	-	0755	rm
fsl/	-	0755	rm
gpio/	-	0755	rm
hsi/	-	0755	rm
iio/	-	0755	rm
input/	-	0755	rm
irqchip/	-	0755	rm
isdn/	-	0755	rm
lockd/	-	0755	rm
mailbox/	-	0755	rm
mfd/	-	0755	rm
mlx4/	-	0755	rm
mlx5/	-	0755	rm
mmc/	-	0755	rm
mtd/	-	0755	rm
mux/	-	0755	rm
net/	-	0755	rm
netfilter/	-	0755	rm
netfilter_arp/	-	0755	rm
netfilter_bridge/	-	0755	rm
netfilter_ipv4/	-	0755	rm
netfilter_ipv6/	-	0755	rm
pcs/	-	0755	rm
perf/	-	0755	rm
phy/	-	0755	rm
pinctrl/	-	0755	rm
platform_data/	-	0755	rm
power/	-	0755	rm
qed/	-	0755	rm
raid/	-	0755	rm
regulator/	-	0755	rm
remoteproc/	-	0755	rm
reset/	-	0755	rm
rpmsg/	-	0755	rm
rtc/	-	0755	rm
sched/	-	0755	rm
soc/	-	0755	rm
soundwire/	-	0755	rm
spi/	-	0755	rm
ssb/	-	0755	rm
sunrpc/	-	0755	rm
ulpi/	-	0755	rm
unaligned/	-	0755	rm
usb/	-	0755	rm
uwb/	-	0755	rm
wimax/	-	0755	rm
8250_pci.h	1038	0644	edit dl rm
a.out.h	354	0644	edit dl rm
acct.h	2551	0644	edit dl rm
acpi.h	43130	0644	edit dl rm
acpi_apmt.h	367	0644	edit dl rm
acpi_dma.h	3300	0644	edit dl rm
acpi_iort.h	3235	0644	edit dl rm
acpi_pmtmr.h	674	0644	edit dl rm
adb.h	1832	0644	edit dl rm
adfs_fs.h	574	0644	edit dl rm
adxl.h	310	0644	edit dl rm
aer.h	1822	0644	edit dl rm
agpgart.h	3908	0644	edit dl rm
agp_backend.h	3534	0644	edit dl rm
ahci-remap.h	607	0644	edit dl rm
ahci_platform.h	1772	0644	edit dl rm
aio.h	651	0644	edit dl rm
alarmtimer.h	1875	0644	edit dl rm
altera_jtaguart.h	379	0644	edit dl rm
altera_uart.h	397	0644	edit dl rm
amd-iommu.h	6931	0644	edit dl rm
amd-pstate.h	3356	0644	edit dl rm
anon_inodes.h	494	0644	edit dl rm
aperture.h	1619	0644	edit dl rm
apm-emulation.h	1575	0644	edit dl rm
apm_bios.h	2746	0644	edit dl rm
apple-gmux.h	1459	0644	edit dl rm
apple_bl.h	498	0644	edit dl rm
arch_topology.h	1983	0644	edit dl rm
arm-cci.h	2058	0644	edit dl rm
arm-smccc.h	16066	0644	edit dl rm
arm_sdei.h	2641	0644	edit dl rm
ascii85.h	532	0644	edit dl rm
asn1.h	2039	0644	edit dl rm
asn1_ber_bytecode.h	2783	0644	edit dl rm
asn1_decoder.h	675	0644	edit dl rm
assoc_array.h	3156	0644	edit dl rm
assoc_array_priv.h	5630	0644	edit dl rm
async.h	4591	0644	edit dl rm
async_tx.h	7487	0644	edit dl rm
ata.h	33980	0644	edit dl rm
atalk.h	4550	0644	edit dl rm
ata_platform.h	729	0644	edit dl rm
ath9k_platform.h	1477	0644	edit dl rm
atm.h	287	0644	edit dl rm
atmdev.h	10457	0644	edit dl rm
atmel-mci.h	1429	0644	edit dl rm
atmel-ssc.h	9971	0644	edit dl rm
atmel_pdc.h	1502	0644	edit dl rm
atmel_tc.h	11600	0644	edit dl rm
atm_suni.h	253	0644	edit dl rm
atm_tcp.h	511	0644	edit dl rm
atomic.h	37546	0644	edit dl rm
attribute_container.h	2799	0644	edit dl rm
audit.h	20332	0644	edit dl rm
audit_arch.h	559	0644	edit dl rm
auto_dev-ioctl.h	454	0644	edit dl rm
auto_fs.h	436	0644	edit dl rm
auxiliary_bus.h	2787	0644	edit dl rm
auxvec.h	304	0644	edit dl rm
average.h	2481	0644	edit dl rm
b1pcmcia.h	666	0644	edit dl rm
backing-dev-defs.h	10327	0644	edit dl rm
backing-dev.h	12260	0644	edit dl rm
backlight.h	13447	0644	edit dl rm
badblocks.h	2188	0644	edit dl rm
balloon_compaction.h	6745	0644	edit dl rm
bcd.h	559	0644	edit dl rm
bch.h	2660	0644	edit dl rm
bcm47xx_nvram.h	1247	0644	edit dl rm
bcm47xx_sprom.h	600	0644	edit dl rm
bcm47xx_wdt.h	555	0644	edit dl rm
bcm963xx_nvram.h	3036	0644	edit dl rm
bcm963xx_tag.h	3685	0644	edit dl rm
binfmts.h	5443	0644	edit dl rm
bio.h	20690	0644	edit dl rm
bitfield.h	5899	0644	edit dl rm
bitmap.h	21496	0644	edit dl rm
bitops.h	8870	0644	edit dl rm
bitrev.h	2541	0644	edit dl rm
bits.h	1512	0644	edit dl rm
bit_spinlock.h	2360	0644	edit dl rm
blk-cgroup.h	22728	0644	edit dl rm
blk-mq-pci.h	269	0644	edit dl rm
blk-mq-rdma.h	234	0644	edit dl rm
blk-mq-virtio.h	293	0644	edit dl rm
blk-mq.h	16074	0644	edit dl rm
blk-pm.h	717	0644	edit dl rm
blkdev.h	58898	0644	edit dl rm
blkpg.h	436	0644	edit dl rm
blktrace_api.h	3777	0644	edit dl rm
blk_types.h	15342	0644	edit dl rm
blockgroup_lock.h	810	0644	edit dl rm
bma150.h	1938	0644	edit dl rm
bottom_half.h	803	0644	edit dl rm
bpf-cgroup.h	19818	0644	edit dl rm
bpf-netns.h	1559	0644	edit dl rm
bpf.h	72824	0644	edit dl rm
bpfilter.h	791	0644	edit dl rm
bpfptr.h	1733	0644	edit dl rm
bpf_lirc.h	698	0644	edit dl rm
bpf_local_storage.h	5349	0644	edit dl rm
bpf_lsm.h	1431	0644	edit dl rm
bpf_trace.h	166	0644	edit dl rm
bpf_types.h	5395	0644	edit dl rm
bpf_verifier.h	18791	0644	edit dl rm
brcmphy.h	14023	0644	edit dl rm
bsearch.h	275	0644	edit dl rm
bsg-lib.h	2455	0644	edit dl rm
bsg.h	1094	0644	edit dl rm
btf.h	7363	0644	edit dl rm
btf_ids.h	5174	0644	edit dl rm
btree-128.h	2737	0644	edit dl rm
btree-type.h	3991	0644	edit dl rm
btree.h	6999	0644	edit dl rm
btrfs.h	145	0644	edit dl rm
buffer_head.h	14379	0644	edit dl rm
bug.h	1967	0644	edit dl rm
buildid.h	248	0644	edit dl rm
build_bug.h	3066	0644	edit dl rm
bvec.h	4119	0644	edit dl rm
c2port.h	1529	0644	edit dl rm
cache.h	2182	0644	edit dl rm
cacheinfo.h	4796	0644	edit dl rm
capability.h	8179	0644	edit dl rm
cb710.h	5827	0644	edit dl rm
cciss_ioctl.h	1053	0644	edit dl rm
ccp.h	18697	0644	edit dl rm
cc_platform.h	3140	0644	edit dl rm
cdev.h	845	0644	edit dl rm
cdrom.h	9193	0644	edit dl rm
cfag12864b.h	1499	0644	edit dl rm
cgroup-defs.h	27242	0644	edit dl rm
cgroup.h	28880	0644	edit dl rm
cgroup_rdma.h	1358	0644	edit dl rm
cgroup_subsys.h	1259	0644	edit dl rm
circ_buf.h	1120	0644	edit dl rm
cleancache.h	3982	0644	edit dl rm
cleanup.h	14215	0644	edit dl rm
clk-provider.h	37542	0644	edit dl rm
clk.h	25157	0644	edit dl rm
clkdev.h	1698	0644	edit dl rm
clockchips.h	7445	0644	edit dl rm
clocksource.h	9188	0644	edit dl rm
clock_cooling.h	2106	0644	edit dl rm
cm4000_cs.h	199	0644	edit dl rm
cma.h	1212	0644	edit dl rm
cmdline-parser.h	1238	0644	edit dl rm
cnt32_to_63.h	3691	0644	edit dl rm
cn_proc.h	1890	0644	edit dl rm
coda.h	2244	0644	edit dl rm
coda_psdev.h	2692	0644	edit dl rm
compaction.h	7654	0644	edit dl rm
compat.h	35739	0644	edit dl rm
compat_time.h	499	0644	edit dl rm
compiler-clang.h	2446	0644	edit dl rm
compiler-gcc.h	5756	0644	edit dl rm
compiler-intel.h	949	0644	edit dl rm
compiler.h	15718	0644	edit dl rm
compiler_attributes.h	10600	0644	edit dl rm
compiler_types.h	6931	0644	edit dl rm
completion.h	4201	0644	edit dl rm
component.h	4459	0644	edit dl rm
concap.h	3778	0644	edit dl rm
configfs.h	9441	0644	edit dl rm
connector.h	2490	0644	edit dl rm
console.h	7504	0644	edit dl rm
consolemap.h	1068	0644	edit dl rm
console_struct.h	6966	0644	edit dl rm
const.h	421	0644	edit dl rm
container.h	668	0644	edit dl rm
container_of.h	1278	0644	edit dl rm
context_tracking.h	5168	0644	edit dl rm
context_tracking_state.h	1529	0644	edit dl rm
cookie.h	1254	0644	edit dl rm
cordic.h	1794	0644	edit dl rm
coredump.h	797	0644	edit dl rm
coresight-pmu.h	989	0644	edit dl rm
coresight-stm.h	152	0644	edit dl rm
coresight.h	9676	0644	edit dl rm
counter.h	15497	0644	edit dl rm
counter_enum.h	1463	0644	edit dl rm
count_zeros.h	1660	0644	edit dl rm
cper.h	16826	0644	edit dl rm
cpu.h	7959	0644	edit dl rm
cpufeature.h	1882	0644	edit dl rm
cpufreq.h	34248	0644	edit dl rm
cpuhotplug.h	14269	0644	edit dl rm
cpuidle.h	13061	0644	edit dl rm
cpuidle_haltpoll.h	312	0644	edit dl rm
cpumask.h	29721	0644	edit dl rm
cpuset.h	8297	0644	edit dl rm
cpu_cooling.h	2389	0644	edit dl rm
cpu_pm.h	2850	0644	edit dl rm
cpu_rmap.h	1902	0644	edit dl rm
crash_core.h	3292	0644	edit dl rm
crash_dump.h	5193	0644	edit dl rm
crc-ccitt.h	609	0644	edit dl rm
crc-itu-t.h	613	0644	edit dl rm
crc-t10dif.h	453	0644	edit dl rm
crc4.h	192	0644	edit dl rm
crc7.h	316	0644	edit dl rm
crc8.h	3747	0644	edit dl rm
crc16.h	622	0644	edit dl rm
crc32.h	2894	0644	edit dl rm
crc32c.h	331	0644	edit dl rm
crc32poly.h	610	0644	edit dl rm
cred.h	12749	0644	edit dl rm
crypto.h	59393	0644	edit dl rm
cryptohash.h	546	0644	edit dl rm
cs5535.h	6426	0644	edit dl rm
ctype.h	1791	0644	edit dl rm
cuda.h	501	0644	edit dl rm
cxl_err.h	468	0644	edit dl rm
cyclades.h	10607	0644	edit dl rm
damon.h	19616	0644	edit dl rm
davinci_emac.h	1150	0644	edit dl rm
dax.h	7553	0644	edit dl rm
dca.h	2698	0644	edit dl rm
dcache.h	19621	0644	edit dl rm
dccp.h	10989	0644	edit dl rm
dcookies.h	1329	0644	edit dl rm
debugfs.h	11921	0644	edit dl rm
debugobjects.h	3988	0644	edit dl rm
debug_locks.h	1627	0644	edit dl rm
delay.h	2335	0644	edit dl rm
delayacct.h	6285	0644	edit dl rm
delayed_call.h	709	0644	edit dl rm
dell-led.h	128	0644	edit dl rm
devcoredump.h	2849	0644	edit dl rm
devfreq-event.h	5778	0644	edit dl rm
devfreq.h	12987	0644	edit dl rm
devfreq_cooling.h	3608	0644	edit dl rm
device-mapper.h	19529	0644	edit dl rm
device.h	67275	0644	edit dl rm
device_cgroup.h	1680	0644	edit dl rm
devm-helpers.h	2740	0644	edit dl rm
devpts_fs.h	1314	0644	edit dl rm
dev_printk.h	7731	0644	edit dl rm
digsig.h	1379	0644	edit dl rm
dim.h	8951	0644	edit dl rm
dio.h	11229	0644	edit dl rm
dirent.h	216	0644	edit dl rm
dlm.h	7240	0644	edit dl rm
dlm_plock.h	678	0644	edit dl rm
dm-bufio.h	4574	0644	edit dl rm
dm-dirty-log.h	4038	0644	edit dl rm
dm-io.h	1980	0644	edit dl rm
dm-kcopyd.h	3013	0644	edit dl rm
dm-region-hash.h	3182	0644	edit dl rm
dm9000.h	1136	0644	edit dl rm
dma-buf.h	21547	0644	edit dl rm
dma-contiguous.h	5070	0644	edit dl rm
dma-direct.h	3681	0644	edit dl rm
dma-direction.h	407	0644	edit dl rm
dma-fence-array.h	2983	0644	edit dl rm
dma-fence-chain.h	3576	0644	edit dl rm
dma-fence-unwrap.h	2298	0644	edit dl rm
dma-fence.h	21162	0644	edit dl rm
dma-iommu.h	3020	0644	edit dl rm
dma-map-ops.h	10863	0644	edit dl rm
dma-mapping.h	23170	0644	edit dl rm
dma-resv.h	17245	0644	edit dl rm
dmaengine.h	54891	0644	edit dl rm
dmapool.h	1832	0644	edit dl rm
dmar.h	8791	0644	edit dl rm
dmi.h	4375	0644	edit dl rm
dnotify.h	1047	0644	edit dl rm
dns_resolver.h	1339	0644	edit dl rm
dqblk_qtree.h	2238	0644	edit dl rm
dqblk_v1.h	327	0644	edit dl rm
dqblk_v2.h	406	0644	edit dl rm
drbd.h	10923	0644	edit dl rm
drbd_genl.h	22010	0644	edit dl rm
drbd_genl_api.h	1808	0644	edit dl rm
drbd_limits.h	8003	0644	edit dl rm
ds2782_battery.h	158	0644	edit dl rm
dtlk.h	3584	0644	edit dl rm
dw_apb_timer.h	1743	0644	edit dl rm
dynamic_debug.h	5831	0644	edit dl rm
dynamic_queue_limits.h	3812	0644	edit dl rm
earlycpio.h	359	0644	edit dl rm
ecryptfs.h	3915	0644	edit dl rm
edac.h	20718	0644	edit dl rm
edd.h	1469	0644	edit dl rm
edma.h	807	0644	edit dl rm
eeprom_93cx6.h	3008	0644	edit dl rm
eeprom_93xx46.h	776	0644	edit dl rm
efi-bgrt.h	644	0644	edit dl rm
efi.h	62813	0644	edit dl rm
efs_vh.h	1585	0644	edit dl rm
eisa.h	3031	0644	edit dl rm
elevator.h	6059	0644	edit dl rm
elf-fdpic.h	2237	0644	edit dl rm
elf-randomize.h	583	0644	edit dl rm
elf.h	1565	0644	edit dl rm
elfcore-compat.h	1267	0644	edit dl rm
elfcore.h	2160	0644	edit dl rm
elfnote.h	3625	0644	edit dl rm
enclosure.h	4711	0644	edit dl rm
energy_model.h	5994	0644	edit dl rm
err.h	1583	0644	edit dl rm
errname.h	283	0644	edit dl rm
errno.h	1424	0644	edit dl rm
error-injection.h	607	0644	edit dl rm
errqueue.h	524	0644	edit dl rm
errseq.h	382	0644	edit dl rm
etherdevice.h	16917	0644	edit dl rm
ethtool.h	35580	0644	edit dl rm
ethtool_netlink.h	1920	0644	edit dl rm
eventfd.h	2167	0644	edit dl rm
eventpoll.h	2457	0644	edit dl rm
evm.h	2985	0644	edit dl rm
export.h	3697	0644	edit dl rm
exportfs.h	7692	0644	edit dl rm
ext2_fs.h	967	0644	edit dl rm
extable.h	1309	0644	edit dl rm
extcon-provider.h	4431	0644	edit dl rm
extcon.h	10270	0644	edit dl rm
f2fs_fs.h	18526	0644	edit dl rm
f75375s.h	541	0644	edit dl rm
falloc.h	1719	0644	edit dl rm
fanotify.h	2336	0644	edit dl rm
fault-inject.h	1975	0644	edit dl rm
fb.h	28712	0644	edit dl rm
fbcon.h	2136	0644	edit dl rm
fcdevice.h	988	0644	edit dl rm
fcntl.h	1808	0644	edit dl rm
fd.h	490	0644	edit dl rm
fddidevice.h	1044	0644	edit dl rm
fdtable.h	3616	0644	edit dl rm
fec.h	609	0644	edit dl rm
file.h	3147	0644	edit dl rm
filter.h	42781	0644	edit dl rm
fips.h	167	0644	edit dl rm
firewire.h	13868	0644	edit dl rm
firmware-map.h	1351	0644	edit dl rm
firmware.h	5874	0644	edit dl rm
fixp-arith.h	4516	0644	edit dl rm
flat.h	1653	0644	edit dl rm
flex_array.h	4412	0644	edit dl rm
flex_proportions.h	2881	0644	edit dl rm
fmc-sdb.h	1319	0644	edit dl rm
fmc.h	9877	0644	edit dl rm
font.h	1598	0644	edit dl rm
fortify-string.h	16550	0644	edit dl rm
freezer.h	9257	0644	edit dl rm
frontswap.h	3121	0644	edit dl rm
fs.h	117740	0644	edit dl rm
fscache-cache.h	19254	0644	edit dl rm
fscache.h	29577	0644	edit dl rm
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fsi.h	2424	0644	edit dl rm
fsl-diu-fb.h	4179	0644	edit dl rm
fsldma.h	398	0644	edit dl rm
fsl_devices.h	4430	0644	edit dl rm
fsl_hypervisor.h	2824	0644	edit dl rm
fsl_ifc.h	25658	0644	edit dl rm
fsnotify.h	7796	0644	edit dl rm
fsnotify_backend.h	20595	0644	edit dl rm
fs_context.h	9097	0644	edit dl rm
fs_enet_pd.h	3457	0644	edit dl rm
fs_parser.h	4750	0644	edit dl rm
fs_pin.h	619	0644	edit dl rm
fs_stack.h	811	0644	edit dl rm
fs_struct.h	1751	0644	edit dl rm
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ftrace_irq.h	1163	0644	edit dl rm
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gameport.h	5695	0644	edit dl rm
gcd.h	193	0644	edit dl rm
genalloc.h	7950	0644	edit dl rm
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genetlink.h	1379	0644	edit dl rm
genhd.h	16076	0644	edit dl rm
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getcpu.h	641	0644	edit dl rm
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glob.h	256	0644	edit dl rm
goldfish.h	605	0644	edit dl rm
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gpio.h	5478	0644	edit dl rm
gpio_keys.h	1782	0644	edit dl rm
hardirq.h	3264	0644	edit dl rm
hash.h	2998	0644	edit dl rm
hashtable.h	6805	0644	edit dl rm
hdlc.h	3413	0644	edit dl rm
hdlcdrv.h	6470	0644	edit dl rm
hdmi.h	12851	0644	edit dl rm
hid-debug.h	1458	0644	edit dl rm
hid-roccat.h	484	0644	edit dl rm
hid-sensor-hub.h	9190	0644	edit dl rm
hid-sensor-ids.h	7617	0644	edit dl rm
hid.h	38339	0644	edit dl rm
hidden.h	966	0644	edit dl rm
hiddev.h	1458	0644	edit dl rm
hidraw.h	1146	0644	edit dl rm
highmem-internal.h	4952	0644	edit dl rm
highmem.h	8235	0644	edit dl rm
highuid.h	3194	0644	edit dl rm
hil.h	18857	0644	edit dl rm
hil_mlc.h	5249	0644	edit dl rm
hippidevice.h	1263	0644	edit dl rm
hmm.h	4656	0644	edit dl rm
host1x.h	8618	0644	edit dl rm
hpet.h	2615	0644	edit dl rm
hp_sdc.h	14352	0644	edit dl rm
hrtimer.h	16651	0644	edit dl rm
hrtimer_defs.h	660	0644	edit dl rm
htcpld.h	617	0644	edit dl rm
hugetlb.h	27496	0644	edit dl rm
hugetlb_cgroup.h	7056	0644	edit dl rm
hugetlb_inline.h	374	0644	edit dl rm
huge_mm.h	15743	0644	edit dl rm
hwmon-sysfs.h	2024	0644	edit dl rm
hwmon-vid.h	1518	0644	edit dl rm
hwmon.h	14084	0644	edit dl rm
hwspinlock.h	13044	0644	edit dl rm
hw_breakpoint.h	4405	0644	edit dl rm
hw_random.h	2377	0644	edit dl rm
hyperv.h	50010	0644	edit dl rm
hypervisor.h	748	0644	edit dl rm
i2c-algo-bit.h	2322	0644	edit dl rm
i2c-algo-pca.h	2599	0644	edit dl rm
i2c-algo-pcf.h	1926	0644	edit dl rm
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Edit: /usr/src/kernels/4.18.0-553.121.1.el8_10.x86_64/include/linux/crypto.h (59393B)

/*
 * Scatterlist Cryptographic API.
 *
 * Copyright (c) 2002 James Morris <jmorris@intercode.com.au>
 * Copyright (c) 2002 David S. Miller (davem@redhat.com)
 * Copyright (c) 2005 Herbert Xu <herbert@gondor.apana.org.au>
 *
 * Portions derived from Cryptoapi, by Alexander Kjeldaas <astor@fast.no>
 * and Nettle, by Niels Möller.
 * 
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License as published by the Free
 * Software Foundation; either version 2 of the License, or (at your option) 
 * any later version.
 *
 */
#ifndef _LINUX_CRYPTO_H
#define _LINUX_CRYPTO_H

#include <linux/atomic.h>
#include <linux/kernel.h>
#include <linux/list.h>
#include <linux/bug.h>
#include <linux/slab.h>
#include <linux/string.h>
#include <linux/uaccess.h>
#include <linux/completion.h>

/*
 * Autoloaded crypto modules should only use a prefixed name to avoid allowing
 * arbitrary modules to be loaded. Loading from userspace may still need the
 * unprefixed names, so retains those aliases as well.
 * This uses __MODULE_INFO directly instead of MODULE_ALIAS because pre-4.3
 * gcc (e.g. avr32 toolchain) uses __LINE__ for uniqueness, and this macro
 * expands twice on the same line. Instead, use a separate base name for the
 * alias.
 */
#define MODULE_ALIAS_CRYPTO(name)	\
		__MODULE_INFO(alias, alias_userspace, name);	\
		__MODULE_INFO(alias, alias_crypto, "crypto-" name)

/*
 * Algorithm masks and types.
 */
#define CRYPTO_ALG_TYPE_MASK		0x0000000f
#define CRYPTO_ALG_TYPE_CIPHER		0x00000001
#define CRYPTO_ALG_TYPE_COMPRESS	0x00000002
#define CRYPTO_ALG_TYPE_AEAD		0x00000003
#define CRYPTO_ALG_TYPE_BLKCIPHER	0x00000004
#define CRYPTO_ALG_TYPE_ABLKCIPHER	0x00000005
#define CRYPTO_ALG_TYPE_SKCIPHER	0x00000005
#define CRYPTO_ALG_TYPE_GIVCIPHER	0x00000006
#define CRYPTO_ALG_TYPE_KPP		0x00000008
#define CRYPTO_ALG_TYPE_ACOMPRESS	0x0000000a
#define CRYPTO_ALG_TYPE_SCOMPRESS	0x0000000b
#define CRYPTO_ALG_TYPE_RNG		0x0000000c
#define CRYPTO_ALG_TYPE_AKCIPHER	0x0000000d
#define CRYPTO_ALG_TYPE_DIGEST		0x0000000e
#define CRYPTO_ALG_TYPE_HASH		0x0000000e
#define CRYPTO_ALG_TYPE_SHASH		0x0000000e
#define CRYPTO_ALG_TYPE_AHASH		0x0000000f

#define CRYPTO_ALG_TYPE_HASH_MASK	0x0000000e
#define CRYPTO_ALG_TYPE_AHASH_MASK	0x0000000e
#define CRYPTO_ALG_TYPE_BLKCIPHER_MASK	0x0000000c
#define CRYPTO_ALG_TYPE_ACOMPRESS_MASK	0x0000000e

#define CRYPTO_ALG_LARVAL		0x00000010
#define CRYPTO_ALG_DEAD			0x00000020
#define CRYPTO_ALG_DYING		0x00000040
#define CRYPTO_ALG_ASYNC		0x00000080

/*
 * Set this bit if and only if the algorithm requires another algorithm of
 * the same type to handle corner cases.
 */
#define CRYPTO_ALG_NEED_FALLBACK	0x00000100

/*
 * This bit is set for symmetric key ciphers that have already been wrapped
 * with a generic IV generator to prevent them from being wrapped again.
 */
#define CRYPTO_ALG_GENIV		0x00000200

/*
 * Set if the algorithm has passed automated run-time testing.  Note that
 * if there is no run-time testing for a given algorithm it is considered
 * to have passed.
 */

#define CRYPTO_ALG_TESTED		0x00000400

/*
 * Set if the algorithm is an instance that is built from templates.
 */
#define CRYPTO_ALG_INSTANCE		0x00000800

/* Set this bit if the algorithm provided is hardware accelerated but
 * not available to userspace via instruction set or so.
 */
#define CRYPTO_ALG_KERN_DRIVER_ONLY	0x00001000

/*
 * Mark a cipher as a service implementation only usable by another
 * cipher and never by a normal user of the kernel crypto API
 */
#define CRYPTO_ALG_INTERNAL		0x00002000

/*
 * Set if the algorithm has a ->setkey() method but can be used without
 * calling it first, i.e. there is a default key.
 */
#define CRYPTO_ALG_OPTIONAL_KEY		0x00004000

/*
 * Don't trigger module loading
 */
#define CRYPTO_NOLOAD			0x00008000

/*
 * The algorithm may allocate memory during request processing, i.e. during
 * encryption, decryption, or hashing.  Users can request an algorithm with this
 * flag unset if they can't handle memory allocation failures.
 *
 * This flag is currently only implemented for algorithms of type "skcipher",
 * "aead", "ahash", "shash", and "cipher".  Algorithms of other types might not
 * have this flag set even if they allocate memory.
 *
 * In some edge cases, algorithms can allocate memory regardless of this flag.
 * To avoid these cases, users must obey the following usage constraints:
 *    skcipher:
 *	- The IV buffer and all scatterlist elements must be aligned to the
 *	  algorithm's alignmask.
 *	- If the data were to be divided into chunks of size
 *	  crypto_skcipher_walksize() (with any remainder going at the end), no
 *	  chunk can cross a page boundary or a scatterlist element boundary.
 *    aead:
 *	- The IV buffer and all scatterlist elements must be aligned to the
 *	  algorithm's alignmask.
 *	- The first scatterlist element must contain all the associated data,
 *	  and its pages must be !PageHighMem.
 *	- If the plaintext/ciphertext were to be divided into chunks of size
 *	  crypto_aead_walksize() (with the remainder going at the end), no chunk
 *	  can cross a page boundary or a scatterlist element boundary.
 *    ahash:
 *	- The result buffer must be aligned to the algorithm's alignmask.
 *	- crypto_ahash_finup() must not be used unless the algorithm implements
 *	  ->finup() natively.
 */
#define CRYPTO_ALG_ALLOCATES_MEMORY	0x00010000

/*
 * Mark an algorithm as a service implementation only usable by a
 * template and never by a normal user of the kernel crypto API.
 * This is intended to be used by algorithms that are themselves
 * not FIPS-approved but may instead be used to implement parts of
 * a FIPS-approved algorithm (e.g., dh vs. ffdhe2048(dh)).
 */
#define CRYPTO_ALG_FIPS_INTERNAL	0x00020000

/*
 * Transform masks and values (for crt_flags).
 */
#define CRYPTO_TFM_NEED_KEY		0x00000001

#define CRYPTO_TFM_REQ_MASK		0x000fff00
#define CRYPTO_TFM_RES_MASK		0xfff00000

#define CRYPTO_TFM_REQ_WEAK_KEY		0x00000100
#define CRYPTO_TFM_REQ_MAY_SLEEP	0x00000200
#define CRYPTO_TFM_REQ_MAY_BACKLOG	0x00000400
#define CRYPTO_TFM_REQ_NEED_RESEED	0x00000800
#define CRYPTO_TFM_RES_WEAK_KEY		0x00100000
#define CRYPTO_TFM_RES_BAD_KEY_LEN   	0x00200000
#define CRYPTO_TFM_RES_BAD_KEY_SCHED 	0x00400000
#define CRYPTO_TFM_RES_BAD_BLOCK_LEN 	0x00800000
#define CRYPTO_TFM_RES_BAD_FLAGS 	0x01000000

#define CRYPTO_TFM_FIPS_COMPLIANCE	0x80000000

/*
 * Miscellaneous stuff.
 */
#define CRYPTO_MAX_ALG_NAME		128

/*
 * The macro CRYPTO_MINALIGN_ATTR (along with the void * type in the actual
 * declaration) is used to ensure that the crypto_tfm context structure is
 * aligned correctly for the given architecture so that there are no alignment
 * faults for C data types.  In particular, this is required on platforms such
 * as arm where pointers are 32-bit aligned but there are data types such as
 * u64 which require 64-bit alignment.
 */
#define CRYPTO_MINALIGN ARCH_KMALLOC_MINALIGN

#define CRYPTO_MINALIGN_ATTR __attribute__ ((__aligned__(CRYPTO_MINALIGN)))

struct scatterlist;
struct crypto_ablkcipher;
struct crypto_async_request;
struct crypto_blkcipher;
struct crypto_tfm;
struct crypto_type;
struct skcipher_givcrypt_request;

typedef void (*crypto_completion_t)(struct crypto_async_request *req, int err);

/**
 * DOC: Block Cipher Context Data Structures
 *
 * These data structures define the operating context for each block cipher
 * type.
 */

struct crypto_async_request {
	struct list_head list;
	crypto_completion_t complete;
	void *data;
	struct crypto_tfm *tfm;

u32 flags;
};

struct ablkcipher_request {
	struct crypto_async_request base;

unsigned int nbytes;

void *info;

struct scatterlist *src;
	struct scatterlist *dst;

void *__ctx[] CRYPTO_MINALIGN_ATTR;
};

struct blkcipher_desc {
	struct crypto_blkcipher *tfm;
	void *info;
	u32 flags;
};

struct cipher_desc {
	struct crypto_tfm *tfm;
	void (*crfn)(struct crypto_tfm *tfm, u8 *dst, const u8 *src);
	unsigned int (*prfn)(const struct cipher_desc *desc, u8 *dst,
			     const u8 *src, unsigned int nbytes);
	void *info;
};

/**
 * DOC: Block Cipher Algorithm Definitions
 *
 * These data structures define modular crypto algorithm implementations,
 * managed via crypto_register_alg() and crypto_unregister_alg().
 */

/**
 * struct ablkcipher_alg - asynchronous block cipher definition
 * @min_keysize: Minimum key size supported by the transformation. This is the
 *		 smallest key length supported by this transformation algorithm.
 *		 This must be set to one of the pre-defined values as this is
 *		 not hardware specific. Possible values for this field can be
 *		 found via git grep "_MIN_KEY_SIZE" include/crypto/
 * @max_keysize: Maximum key size supported by the transformation. This is the
 *		 largest key length supported by this transformation algorithm.
 *		 This must be set to one of the pre-defined values as this is
 *		 not hardware specific. Possible values for this field can be
 *		 found via git grep "_MAX_KEY_SIZE" include/crypto/
 * @setkey: Set key for the transformation. This function is used to either
 *	    program a supplied key into the hardware or store the key in the
 *	    transformation context for programming it later. Note that this
 *	    function does modify the transformation context. This function can
 *	    be called multiple times during the existence of the transformation
 *	    object, so one must make sure the key is properly reprogrammed into
 *	    the hardware. This function is also responsible for checking the key
 *	    length for validity. In case a software fallback was put in place in
 *	    the @cra_init call, this function might need to use the fallback if
 *	    the algorithm doesn't support all of the key sizes.
 * @encrypt: Encrypt a scatterlist of blocks. This function is used to encrypt
 *	     the supplied scatterlist containing the blocks of data. The crypto
 *	     API consumer is responsible for aligning the entries of the
 *	     scatterlist properly and making sure the chunks are correctly
 *	     sized. In case a software fallback was put in place in the
 *	     @cra_init call, this function might need to use the fallback if
 *	     the algorithm doesn't support all of the key sizes. In case the
 *	     key was stored in transformation context, the key might need to be
 *	     re-programmed into the hardware in this function. This function
 *	     shall not modify the transformation context, as this function may
 *	     be called in parallel with the same transformation object.
 * @decrypt: Decrypt a single block. This is a reverse counterpart to @encrypt
 *	     and the conditions are exactly the same.
 * @givencrypt: Update the IV for encryption. With this function, a cipher
 *	        implementation may provide the function on how to update the IV
 *	        for encryption.
 * @givdecrypt: Update the IV for decryption. This is the reverse of
 *	        @givencrypt .
 * @geniv: The transformation implementation may use an "IV generator" provided
 *	   by the kernel crypto API. Several use cases have a predefined
 *	   approach how IVs are to be updated. For such use cases, the kernel
 *	   crypto API provides ready-to-use implementations that can be
 *	   referenced with this variable.
 * @ivsize: IV size applicable for transformation. The consumer must provide an
 *	    IV of exactly that size to perform the encrypt or decrypt operation.
 *
 * All fields except @givencrypt , @givdecrypt , @geniv and @ivsize are
 * mandatory and must be filled.
 */
struct ablkcipher_alg {
	int (*setkey)(struct crypto_ablkcipher *tfm, const u8 *key,
	              unsigned int keylen);
	int (*encrypt)(struct ablkcipher_request *req);
	int (*decrypt)(struct ablkcipher_request *req);
	int (*givencrypt)(struct skcipher_givcrypt_request *req);
	int (*givdecrypt)(struct skcipher_givcrypt_request *req);

const char *geniv;

unsigned int min_keysize;
	unsigned int max_keysize;
	unsigned int ivsize;
};

/**
 * struct blkcipher_alg - synchronous block cipher definition
 * @min_keysize: see struct ablkcipher_alg
 * @max_keysize: see struct ablkcipher_alg
 * @setkey: see struct ablkcipher_alg
 * @encrypt: see struct ablkcipher_alg
 * @decrypt: see struct ablkcipher_alg
 * @geniv: see struct ablkcipher_alg
 * @ivsize: see struct ablkcipher_alg
 *
 * All fields except @geniv and @ivsize are mandatory and must be filled.
 */
struct blkcipher_alg {
	int (*setkey)(struct crypto_tfm *tfm, const u8 *key,
	              unsigned int keylen);
	int (*encrypt)(struct blkcipher_desc *desc,
		       struct scatterlist *dst, struct scatterlist *src,
		       unsigned int nbytes);
	int (*decrypt)(struct blkcipher_desc *desc,
		       struct scatterlist *dst, struct scatterlist *src,
		       unsigned int nbytes);

const char *geniv;

unsigned int min_keysize;
	unsigned int max_keysize;
	unsigned int ivsize;
};

/**
 * struct cipher_alg - single-block symmetric ciphers definition
 * @cia_min_keysize: Minimum key size supported by the transformation. This is
 *		     the smallest key length supported by this transformation
 *		     algorithm. This must be set to one of the pre-defined
 *		     values as this is not hardware specific. Possible values
 *		     for this field can be found via git grep "_MIN_KEY_SIZE"
 *		     include/crypto/
 * @cia_max_keysize: Maximum key size supported by the transformation. This is
 *		    the largest key length supported by this transformation
 *		    algorithm. This must be set to one of the pre-defined values
 *		    as this is not hardware specific. Possible values for this
 *		    field can be found via git grep "_MAX_KEY_SIZE"
 *		    include/crypto/
 * @cia_setkey: Set key for the transformation. This function is used to either
 *	        program a supplied key into the hardware or store the key in the
 *	        transformation context for programming it later. Note that this
 *	        function does modify the transformation context. This function
 *	        can be called multiple times during the existence of the
 *	        transformation object, so one must make sure the key is properly
 *	        reprogrammed into the hardware. This function is also
 *	        responsible for checking the key length for validity.
 * @cia_encrypt: Encrypt a single block. This function is used to encrypt a
 *		 single block of data, which must be @cra_blocksize big. This
 *		 always operates on a full @cra_blocksize and it is not possible
 *		 to encrypt a block of smaller size. The supplied buffers must
 *		 therefore also be at least of @cra_blocksize size. Both the
 *		 input and output buffers are always aligned to @cra_alignmask.
 *		 In case either of the input or output buffer supplied by user
 *		 of the crypto API is not aligned to @cra_alignmask, the crypto
 *		 API will re-align the buffers. The re-alignment means that a
 *		 new buffer will be allocated, the data will be copied into the
 *		 new buffer, then the processing will happen on the new buffer,
 *		 then the data will be copied back into the original buffer and
 *		 finally the new buffer will be freed. In case a software
 *		 fallback was put in place in the @cra_init call, this function
 *		 might need to use the fallback if the algorithm doesn't support
 *		 all of the key sizes. In case the key was stored in
 *		 transformation context, the key might need to be re-programmed
 *		 into the hardware in this function. This function shall not
 *		 modify the transformation context, as this function may be
 *		 called in parallel with the same transformation object.
 * @cia_decrypt: Decrypt a single block. This is a reverse counterpart to
 *		 @cia_encrypt, and the conditions are exactly the same.
 *
 * All fields are mandatory and must be filled.
 */
struct cipher_alg {
	unsigned int cia_min_keysize;
	unsigned int cia_max_keysize;
	int (*cia_setkey)(struct crypto_tfm *tfm, const u8 *key,
	                  unsigned int keylen);
	void (*cia_encrypt)(struct crypto_tfm *tfm, u8 *dst, const u8 *src);
	void (*cia_decrypt)(struct crypto_tfm *tfm, u8 *dst, const u8 *src);
};

struct compress_alg {
	int (*coa_compress)(struct crypto_tfm *tfm, const u8 *src,
			    unsigned int slen, u8 *dst, unsigned int *dlen);
	int (*coa_decompress)(struct crypto_tfm *tfm, const u8 *src,
			      unsigned int slen, u8 *dst, unsigned int *dlen);
};

#define cra_ablkcipher	cra_u.ablkcipher
#define cra_blkcipher	cra_u.blkcipher
#define cra_cipher	cra_u.cipher
#define cra_compress	cra_u.compress

/**
 * struct crypto_alg - definition of a cryptograpic cipher algorithm
 * @cra_flags: Flags describing this transformation. See include/linux/crypto.h
 *	       CRYPTO_ALG_* flags for the flags which go in here. Those are
 *	       used for fine-tuning the description of the transformation
 *	       algorithm.
 * @cra_blocksize: Minimum block size of this transformation. The size in bytes
 *		   of the smallest possible unit which can be transformed with
 *		   this algorithm. The users must respect this value.
 *		   In case of HASH transformation, it is possible for a smaller
 *		   block than @cra_blocksize to be passed to the crypto API for
 *		   transformation, in case of any other transformation type, an
 * 		   error will be returned upon any attempt to transform smaller
 *		   than @cra_blocksize chunks.
 * @cra_ctxsize: Size of the operational context of the transformation. This
 *		 value informs the kernel crypto API about the memory size
 *		 needed to be allocated for the transformation context.
 * @cra_alignmask: Alignment mask for the input and output data buffer. The data
 *		   buffer containing the input data for the algorithm must be
 *		   aligned to this alignment mask. The data buffer for the
 *		   output data must be aligned to this alignment mask. Note that
 *		   the Crypto API will do the re-alignment in software, but
 *		   only under special conditions and there is a performance hit.
 *		   The re-alignment happens at these occasions for different
 *		   @cra_u types: cipher -- For both input data and output data
 *		   buffer; ahash -- For output hash destination buf; shash --
 *		   For output hash destination buf.
 *		   This is needed on hardware which is flawed by design and
 *		   cannot pick data from arbitrary addresses.
 * @cra_priority: Priority of this transformation implementation. In case
 *		  multiple transformations with same @cra_name are available to
 *		  the Crypto API, the kernel will use the one with highest
 *		  @cra_priority.
 * @cra_name: Generic name (usable by multiple implementations) of the
 *	      transformation algorithm. This is the name of the transformation
 *	      itself. This field is used by the kernel when looking up the
 *	      providers of particular transformation.
 * @cra_driver_name: Unique name of the transformation provider. This is the
 *		     name of the provider of the transformation. This can be any
 *		     arbitrary value, but in the usual case, this contains the
 *		     name of the chip or provider and the name of the
 *		     transformation algorithm.
 * @cra_type: Type of the cryptographic transformation. This is a pointer to
 *	      struct crypto_type, which implements callbacks common for all
 *	      transformation types. There are multiple options:
 *	      &crypto_blkcipher_type, &crypto_ablkcipher_type,
 *	      &crypto_ahash_type, &crypto_rng_type.
 *	      This field might be empty. In that case, there are no common
 *	      callbacks. This is the case for: cipher, compress, shash.
 * @cra_u: Callbacks implementing the transformation. This is a union of
 *	   multiple structures. Depending on the type of transformation selected
 *	   by @cra_type and @cra_flags above, the associated structure must be
 *	   filled with callbacks. This field might be empty. This is the case
 *	   for ahash, shash.
 * @cra_init: Initialize the cryptographic transformation object. This function
 *	      is used to initialize the cryptographic transformation object.
 *	      This function is called only once at the instantiation time, right
 *	      after the transformation context was allocated. In case the
 *	      cryptographic hardware has some special requirements which need to
 *	      be handled by software, this function shall check for the precise
 *	      requirement of the transformation and put any software fallbacks
 *	      in place.
 * @cra_exit: Deinitialize the cryptographic transformation object. This is a
 *	      counterpart to @cra_init, used to remove various changes set in
 *	      @cra_init.
 * @cra_u.ablkcipher: Union member which contains an asynchronous block cipher
 *		      definition. See @struct @ablkcipher_alg.
 * @cra_u.blkcipher: Union member which contains a synchronous block cipher
 * 		     definition See @struct @blkcipher_alg.
 * @cra_u.cipher: Union member which contains a single-block symmetric cipher
 *		  definition. See @struct @cipher_alg.
 * @cra_u.compress: Union member which contains a (de)compression algorithm.
 *		    See @struct @compress_alg.
 * @cra_module: Owner of this transformation implementation. Set to THIS_MODULE
 * @cra_list: internally used
 * @cra_users: internally used
 * @cra_refcnt: internally used
 * @cra_destroy: internally used
 *
 * The struct crypto_alg describes a generic Crypto API algorithm and is common
 * for all of the transformations. Any variable not documented here shall not
 * be used by a cipher implementation as it is internal to the Crypto API.
 */
struct crypto_alg {
	struct list_head cra_list;
	struct list_head cra_users;

u32 cra_flags;
	unsigned int cra_blocksize;
	unsigned int cra_ctxsize;
	unsigned int cra_alignmask;

int cra_priority;
	refcount_t cra_refcnt;

char cra_name[CRYPTO_MAX_ALG_NAME];
	char cra_driver_name[CRYPTO_MAX_ALG_NAME];

const struct crypto_type *cra_type;

union {
		struct ablkcipher_alg ablkcipher;
		struct blkcipher_alg blkcipher;
		struct cipher_alg cipher;
		struct compress_alg compress;
	} cra_u;

int (*cra_init)(struct crypto_tfm *tfm);
	void (*cra_exit)(struct crypto_tfm *tfm);
	void (*cra_destroy)(struct crypto_alg *alg);
	
	struct module *cra_module;
} CRYPTO_MINALIGN_ATTR;

/*
 * A helper struct for waiting for completion of async crypto ops
 */
struct crypto_wait {
	struct completion completion;
	int err;
};

/*
 * Macro for declaring a crypto op async wait object on stack
 */
#define DECLARE_CRYPTO_WAIT(_wait) \
	struct crypto_wait _wait = { \
		COMPLETION_INITIALIZER_ONSTACK((_wait).completion), 0 }

/*
 * Async ops completion helper functioons
 */
void crypto_req_done(struct crypto_async_request *req, int err);

static inline int crypto_wait_req(int err, struct crypto_wait *wait)
{
	switch (err) {
	case -EINPROGRESS:
	case -EBUSY:
		wait_for_completion(&wait->completion);
		reinit_completion(&wait->completion);
		err = wait->err;
		break;
	};

return err;
}

static inline void crypto_init_wait(struct crypto_wait *wait)
{
	init_completion(&wait->completion);
}

/*
 * Algorithm registration interface.
 */
int crypto_register_alg(struct crypto_alg *alg);
int crypto_unregister_alg(struct crypto_alg *alg);
int crypto_register_algs(struct crypto_alg *algs, int count);
int crypto_unregister_algs(struct crypto_alg *algs, int count);

/*
 * Algorithm query interface.
 */
int crypto_has_alg(const char *name, u32 type, u32 mask);

/*
 * Transforms: user-instantiated objects which encapsulate algorithms
 * and core processing logic.  Managed via crypto_alloc_*() and
 * crypto_free_*(), as well as the various helpers below.
 */

struct ablkcipher_tfm {
	int (*setkey)(struct crypto_ablkcipher *tfm, const u8 *key,
	              unsigned int keylen);
	int (*encrypt)(struct ablkcipher_request *req);
	int (*decrypt)(struct ablkcipher_request *req);

struct crypto_ablkcipher *base;

unsigned int ivsize;
	unsigned int reqsize;
};

struct blkcipher_tfm {
	void *iv;
	int (*setkey)(struct crypto_tfm *tfm, const u8 *key,
		      unsigned int keylen);
	int (*encrypt)(struct blkcipher_desc *desc, struct scatterlist *dst,
		       struct scatterlist *src, unsigned int nbytes);
	int (*decrypt)(struct blkcipher_desc *desc, struct scatterlist *dst,
		       struct scatterlist *src, unsigned int nbytes);
};

struct cipher_tfm {
	int (*cit_setkey)(struct crypto_tfm *tfm,
	                  const u8 *key, unsigned int keylen);
	void (*cit_encrypt_one)(struct crypto_tfm *tfm, u8 *dst, const u8 *src);
	void (*cit_decrypt_one)(struct crypto_tfm *tfm, u8 *dst, const u8 *src);
};

struct compress_tfm {
	int (*cot_compress)(struct crypto_tfm *tfm,
	                    const u8 *src, unsigned int slen,
	                    u8 *dst, unsigned int *dlen);
	int (*cot_decompress)(struct crypto_tfm *tfm,
	                      const u8 *src, unsigned int slen,
	                      u8 *dst, unsigned int *dlen);
};

#define crt_ablkcipher	crt_u.ablkcipher
#define crt_blkcipher	crt_u.blkcipher
#define crt_cipher	crt_u.cipher
#define crt_compress	crt_u.compress

struct crypto_tfm {

u32 crt_flags;
	
	union {
		struct ablkcipher_tfm ablkcipher;
		struct blkcipher_tfm blkcipher;
		struct cipher_tfm cipher;
		struct compress_tfm compress;
	} crt_u;

void (*exit)(struct crypto_tfm *tfm);
	
	struct crypto_alg *__crt_alg;

void *__crt_ctx[] CRYPTO_MINALIGN_ATTR;
};

struct crypto_ablkcipher {
	struct crypto_tfm base;
};

struct crypto_blkcipher {
	struct crypto_tfm base;
};

struct crypto_cipher {
	struct crypto_tfm base;
};

struct crypto_comp {
	struct crypto_tfm base;
};

enum {
	CRYPTOA_UNSPEC,
	CRYPTOA_ALG,
	CRYPTOA_TYPE,
	CRYPTOA_U32,
	__CRYPTOA_MAX,
};

#define CRYPTOA_MAX (__CRYPTOA_MAX - 1)

/* Maximum number of (rtattr) parameters for each template. */
#define CRYPTO_MAX_ATTRS 32

struct crypto_attr_alg {
	char name[CRYPTO_MAX_ALG_NAME];
};

struct crypto_attr_type {
	u32 type;
	u32 mask;
};

struct crypto_attr_u32 {
	u32 num;
};

/* 
 * Transform user interface.
 */
 
struct crypto_tfm *crypto_alloc_base(const char *alg_name, u32 type, u32 mask);
void crypto_destroy_tfm(void *mem, struct crypto_tfm *tfm);

static inline void crypto_free_tfm(struct crypto_tfm *tfm)
{
	return crypto_destroy_tfm(tfm, tfm);
}

int alg_test(const char *driver, const char *alg, u32 type, u32 mask);

/*
 * Transform helpers which query the underlying algorithm.
 */
static inline const char *crypto_tfm_alg_name(struct crypto_tfm *tfm)
{
	return tfm->__crt_alg->cra_name;
}

static inline const char *crypto_tfm_alg_driver_name(struct crypto_tfm *tfm)
{
	return tfm->__crt_alg->cra_driver_name;
}

static inline int crypto_tfm_alg_priority(struct crypto_tfm *tfm)
{
	return tfm->__crt_alg->cra_priority;
}

static inline u32 crypto_tfm_alg_type(struct crypto_tfm *tfm)
{
	return tfm->__crt_alg->cra_flags & CRYPTO_ALG_TYPE_MASK;
}

static inline unsigned int crypto_tfm_alg_blocksize(struct crypto_tfm *tfm)
{
	return tfm->__crt_alg->cra_blocksize;
}

static inline unsigned int crypto_tfm_alg_alignmask(struct crypto_tfm *tfm)
{
	return tfm->__crt_alg->cra_alignmask;
}

static inline u32 crypto_tfm_get_flags(struct crypto_tfm *tfm)
{
	return tfm->crt_flags;
}

static inline void crypto_tfm_set_flags(struct crypto_tfm *tfm, u32 flags)
{
	tfm->crt_flags |= flags;
}

static inline void crypto_tfm_clear_flags(struct crypto_tfm *tfm, u32 flags)
{
	tfm->crt_flags &= ~flags;
}

static inline void *crypto_tfm_ctx(struct crypto_tfm *tfm)
{
	return tfm->__crt_ctx;
}

static inline unsigned int crypto_tfm_ctx_alignment(void)
{
	struct crypto_tfm *tfm;
	return __alignof__(tfm->__crt_ctx);
}

/*
 * API wrappers.
 */
static inline struct crypto_ablkcipher *__crypto_ablkcipher_cast(
	struct crypto_tfm *tfm)
{
	return (struct crypto_ablkcipher *)tfm;
}

static inline u32 crypto_skcipher_type(u32 type)
{
	type &= ~(CRYPTO_ALG_TYPE_MASK | CRYPTO_ALG_GENIV);
	type |= CRYPTO_ALG_TYPE_BLKCIPHER;
	return type;
}

static inline u32 crypto_skcipher_mask(u32 mask)
{
	mask &= ~(CRYPTO_ALG_TYPE_MASK | CRYPTO_ALG_GENIV);
	mask |= CRYPTO_ALG_TYPE_BLKCIPHER_MASK;
	return mask;
}

/**
 * DOC: Asynchronous Block Cipher API
 *
 * Asynchronous block cipher API is used with the ciphers of type
 * CRYPTO_ALG_TYPE_ABLKCIPHER (listed as type "ablkcipher" in /proc/crypto).
 *
 * Asynchronous cipher operations imply that the function invocation for a
 * cipher request returns immediately before the completion of the operation.
 * The cipher request is scheduled as a separate kernel thread and therefore
 * load-balanced on the different CPUs via the process scheduler. To allow
 * the kernel crypto API to inform the caller about the completion of a cipher
 * request, the caller must provide a callback function. That function is
 * invoked with the cipher handle when the request completes.
 *
 * To support the asynchronous operation, additional information than just the
 * cipher handle must be supplied to the kernel crypto API. That additional
 * information is given by filling in the ablkcipher_request data structure.
 *
 * For the asynchronous block cipher API, the state is maintained with the tfm
 * cipher handle. A single tfm can be used across multiple calls and in
 * parallel. For asynchronous block cipher calls, context data supplied and
 * only used by the caller can be referenced the request data structure in
 * addition to the IV used for the cipher request. The maintenance of such
 * state information would be important for a crypto driver implementer to
 * have, because when calling the callback function upon completion of the
 * cipher operation, that callback function may need some information about
 * which operation just finished if it invoked multiple in parallel. This
 * state information is unused by the kernel crypto API.
 */

static inline struct crypto_tfm *crypto_ablkcipher_tfm(
	struct crypto_ablkcipher *tfm)
{
	return &tfm->base;
}

/**
 * crypto_free_ablkcipher() - zeroize and free cipher handle
 * @tfm: cipher handle to be freed
 */
static inline void crypto_free_ablkcipher(struct crypto_ablkcipher *tfm)
{
	crypto_free_tfm(crypto_ablkcipher_tfm(tfm));
}

/**
 * crypto_has_ablkcipher() - Search for the availability of an ablkcipher.
 * @alg_name: is the cra_name / name or cra_driver_name / driver name of the
 *	      ablkcipher
 * @type: specifies the type of the cipher
 * @mask: specifies the mask for the cipher
 *
 * Return: true when the ablkcipher is known to the kernel crypto API; false
 *	   otherwise
 */
static inline int crypto_has_ablkcipher(const char *alg_name, u32 type,
					u32 mask)
{
	return crypto_has_alg(alg_name, crypto_skcipher_type(type),
			      crypto_skcipher_mask(mask));
}

static inline struct ablkcipher_tfm *crypto_ablkcipher_crt(
	struct crypto_ablkcipher *tfm)
{
	return &crypto_ablkcipher_tfm(tfm)->crt_ablkcipher;
}

/**
 * crypto_ablkcipher_ivsize() - obtain IV size
 * @tfm: cipher handle
 *
 * The size of the IV for the ablkcipher referenced by the cipher handle is
 * returned. This IV size may be zero if the cipher does not need an IV.
 *
 * Return: IV size in bytes
 */
static inline unsigned int crypto_ablkcipher_ivsize(
	struct crypto_ablkcipher *tfm)
{
	return crypto_ablkcipher_crt(tfm)->ivsize;
}

/**
 * crypto_ablkcipher_blocksize() - obtain block size of cipher
 * @tfm: cipher handle
 *
 * The block size for the ablkcipher referenced with the cipher handle is
 * returned. The caller may use that information to allocate appropriate
 * memory for the data returned by the encryption or decryption operation
 *
 * Return: block size of cipher
 */
static inline unsigned int crypto_ablkcipher_blocksize(
	struct crypto_ablkcipher *tfm)
{
	return crypto_tfm_alg_blocksize(crypto_ablkcipher_tfm(tfm));
}

static inline unsigned int crypto_ablkcipher_alignmask(
	struct crypto_ablkcipher *tfm)
{
	return crypto_tfm_alg_alignmask(crypto_ablkcipher_tfm(tfm));
}

static inline u32 crypto_ablkcipher_get_flags(struct crypto_ablkcipher *tfm)
{
	return crypto_tfm_get_flags(crypto_ablkcipher_tfm(tfm));
}

static inline void crypto_ablkcipher_set_flags(struct crypto_ablkcipher *tfm,
					       u32 flags)
{
	crypto_tfm_set_flags(crypto_ablkcipher_tfm(tfm), flags);
}

static inline void crypto_ablkcipher_clear_flags(struct crypto_ablkcipher *tfm,
						 u32 flags)
{
	crypto_tfm_clear_flags(crypto_ablkcipher_tfm(tfm), flags);
}

/**
 * crypto_ablkcipher_setkey() - set key for cipher
 * @tfm: cipher handle
 * @key: buffer holding the key
 * @keylen: length of the key in bytes
 *
 * The caller provided key is set for the ablkcipher referenced by the cipher
 * handle.
 *
 * Note, the key length determines the cipher type. Many block ciphers implement
 * different cipher modes depending on the key size, such as AES-128 vs AES-192
 * vs. AES-256. When providing a 16 byte key for an AES cipher handle, AES-128
 * is performed.
 *
 * Return: 0 if the setting of the key was successful; < 0 if an error occurred
 */
static inline int crypto_ablkcipher_setkey(struct crypto_ablkcipher *tfm,
					   const u8 *key, unsigned int keylen)
{
	struct ablkcipher_tfm *crt = crypto_ablkcipher_crt(tfm);

return crt->setkey(crt->base, key, keylen);
}

/**
 * crypto_ablkcipher_reqtfm() - obtain cipher handle from request
 * @req: ablkcipher_request out of which the cipher handle is to be obtained
 *
 * Return the crypto_ablkcipher handle when furnishing an ablkcipher_request
 * data structure.
 *
 * Return: crypto_ablkcipher handle
 */
static inline struct crypto_ablkcipher *crypto_ablkcipher_reqtfm(
	struct ablkcipher_request *req)
{
	return __crypto_ablkcipher_cast(req->base.tfm);
}

/**
 * crypto_ablkcipher_encrypt() - encrypt plaintext
 * @req: reference to the ablkcipher_request handle that holds all information
 *	 needed to perform the cipher operation
 *
 * Encrypt plaintext data using the ablkcipher_request handle. That data
 * structure and how it is filled with data is discussed with the
 * ablkcipher_request_* functions.
 *
 * Return: 0 if the cipher operation was successful; < 0 if an error occurred
 */
static inline int crypto_ablkcipher_encrypt(struct ablkcipher_request *req)
{
	struct ablkcipher_tfm *crt =
		crypto_ablkcipher_crt(crypto_ablkcipher_reqtfm(req));
	return crt->encrypt(req);
}

/**
 * crypto_ablkcipher_decrypt() - decrypt ciphertext
 * @req: reference to the ablkcipher_request handle that holds all information
 *	 needed to perform the cipher operation
 *
 * Decrypt ciphertext data using the ablkcipher_request handle. That data
 * structure and how it is filled with data is discussed with the
 * ablkcipher_request_* functions.
 *
 * Return: 0 if the cipher operation was successful; < 0 if an error occurred
 */
static inline int crypto_ablkcipher_decrypt(struct ablkcipher_request *req)
{
	struct ablkcipher_tfm *crt =
		crypto_ablkcipher_crt(crypto_ablkcipher_reqtfm(req));
	return crt->decrypt(req);
}

/**
 * DOC: Asynchronous Cipher Request Handle
 *
 * The ablkcipher_request data structure contains all pointers to data
 * required for the asynchronous cipher operation. This includes the cipher
 * handle (which can be used by multiple ablkcipher_request instances), pointer
 * to plaintext and ciphertext, asynchronous callback function, etc. It acts
 * as a handle to the ablkcipher_request_* API calls in a similar way as
 * ablkcipher handle to the crypto_ablkcipher_* API calls.
 */

/**
 * crypto_ablkcipher_reqsize() - obtain size of the request data structure
 * @tfm: cipher handle
 *
 * Return: number of bytes
 */
static inline unsigned int crypto_ablkcipher_reqsize(
	struct crypto_ablkcipher *tfm)
{
	return crypto_ablkcipher_crt(tfm)->reqsize;
}

/**
 * ablkcipher_request_set_tfm() - update cipher handle reference in request
 * @req: request handle to be modified
 * @tfm: cipher handle that shall be added to the request handle
 *
 * Allow the caller to replace the existing ablkcipher handle in the request
 * data structure with a different one.
 */
static inline void ablkcipher_request_set_tfm(
	struct ablkcipher_request *req, struct crypto_ablkcipher *tfm)
{
	req->base.tfm = crypto_ablkcipher_tfm(crypto_ablkcipher_crt(tfm)->base);
}

static inline struct ablkcipher_request *ablkcipher_request_cast(
	struct crypto_async_request *req)
{
	return container_of(req, struct ablkcipher_request, base);
}

/**
 * ablkcipher_request_alloc() - allocate request data structure
 * @tfm: cipher handle to be registered with the request
 * @gfp: memory allocation flag that is handed to kmalloc by the API call.
 *
 * Allocate the request data structure that must be used with the ablkcipher
 * encrypt and decrypt API calls. During the allocation, the provided ablkcipher
 * handle is registered in the request data structure.
 *
 * Return: allocated request handle in case of success, or NULL if out of memory
 */
static inline struct ablkcipher_request *ablkcipher_request_alloc(
	struct crypto_ablkcipher *tfm, gfp_t gfp)
{
	struct ablkcipher_request *req;

req = kmalloc(sizeof(struct ablkcipher_request) +
		      crypto_ablkcipher_reqsize(tfm), gfp);

if (likely(req))
		ablkcipher_request_set_tfm(req, tfm);

return req;
}

/**
 * ablkcipher_request_free() - zeroize and free request data structure
 * @req: request data structure cipher handle to be freed
 */
static inline void ablkcipher_request_free(struct ablkcipher_request *req)
{
	kzfree(req);
}

/**
 * ablkcipher_request_set_callback() - set asynchronous callback function
 * @req: request handle
 * @flags: specify zero or an ORing of the flags
 *	   CRYPTO_TFM_REQ_MAY_BACKLOG the request queue may back log and
 *	   increase the wait queue beyond the initial maximum size;
 *	   CRYPTO_TFM_REQ_MAY_SLEEP the request processing may sleep
 * @compl: callback function pointer to be registered with the request handle
 * @data: The data pointer refers to memory that is not used by the kernel
 *	  crypto API, but provided to the callback function for it to use. Here,
 *	  the caller can provide a reference to memory the callback function can
 *	  operate on. As the callback function is invoked asynchronously to the
 *	  related functionality, it may need to access data structures of the
 *	  related functionality which can be referenced using this pointer. The
 *	  callback function can access the memory via the "data" field in the
 *	  crypto_async_request data structure provided to the callback function.
 *
 * This function allows setting the callback function that is triggered once the
 * cipher operation completes.
 *
 * The callback function is registered with the ablkcipher_request handle and
 * must comply with the following template::
 *
 *	void callback_function(struct crypto_async_request *req, int error)
 */
static inline void ablkcipher_request_set_callback(
	struct ablkcipher_request *req,
	u32 flags, crypto_completion_t compl, void *data)
{
	req->base.complete = compl;
	req->base.data = data;
	req->base.flags = flags;
}

/**
 * ablkcipher_request_set_crypt() - set data buffers
 * @req: request handle
 * @src: source scatter / gather list
 * @dst: destination scatter / gather list
 * @nbytes: number of bytes to process from @src
 * @iv: IV for the cipher operation which must comply with the IV size defined
 *      by crypto_ablkcipher_ivsize
 *
 * This function allows setting of the source data and destination data
 * scatter / gather lists.
 *
 * For encryption, the source is treated as the plaintext and the
 * destination is the ciphertext. For a decryption operation, the use is
 * reversed - the source is the ciphertext and the destination is the plaintext.
 */
static inline void ablkcipher_request_set_crypt(
	struct ablkcipher_request *req,
	struct scatterlist *src, struct scatterlist *dst,
	unsigned int nbytes, void *iv)
{
	req->src = src;
	req->dst = dst;
	req->nbytes = nbytes;
	req->info = iv;
}

/**
 * DOC: Synchronous Block Cipher API
 *
 * The synchronous block cipher API is used with the ciphers of type
 * CRYPTO_ALG_TYPE_BLKCIPHER (listed as type "blkcipher" in /proc/crypto)
 *
 * Synchronous calls, have a context in the tfm. But since a single tfm can be
 * used in multiple calls and in parallel, this info should not be changeable
 * (unless a lock is used). This applies, for example, to the symmetric key.
 * However, the IV is changeable, so there is an iv field in blkcipher_tfm
 * structure for synchronous blkcipher api. So, its the only state info that can
 * be kept for synchronous calls without using a big lock across a tfm.
 *
 * The block cipher API allows the use of a complete cipher, i.e. a cipher
 * consisting of a template (a block chaining mode) and a single block cipher
 * primitive (e.g. AES).
 *
 * The plaintext data buffer and the ciphertext data buffer are pointed to
 * by using scatter/gather lists. The cipher operation is performed
 * on all segments of the provided scatter/gather lists.
 *
 * The kernel crypto API supports a cipher operation "in-place" which means that
 * the caller may provide the same scatter/gather list for the plaintext and
 * cipher text. After the completion of the cipher operation, the plaintext
 * data is replaced with the ciphertext data in case of an encryption and vice
 * versa for a decryption. The caller must ensure that the scatter/gather lists
 * for the output data point to sufficiently large buffers, i.e. multiples of
 * the block size of the cipher.
 */

static inline struct crypto_blkcipher *__crypto_blkcipher_cast(
	struct crypto_tfm *tfm)
{
	return (struct crypto_blkcipher *)tfm;
}

static inline struct crypto_blkcipher *crypto_blkcipher_cast(
	struct crypto_tfm *tfm)
{
	BUG_ON(crypto_tfm_alg_type(tfm) != CRYPTO_ALG_TYPE_BLKCIPHER);
	return __crypto_blkcipher_cast(tfm);
}

/**
 * crypto_alloc_blkcipher() - allocate synchronous block cipher handle
 * @alg_name: is the cra_name / name or cra_driver_name / driver name of the
 *	      blkcipher cipher
 * @type: specifies the type of the cipher
 * @mask: specifies the mask for the cipher
 *
 * Allocate a cipher handle for a block cipher. The returned struct
 * crypto_blkcipher is the cipher handle that is required for any subsequent
 * API invocation for that block cipher.
 *
 * Return: allocated cipher handle in case of success; IS_ERR() is true in case
 *	   of an error, PTR_ERR() returns the error code.
 */
static inline struct crypto_blkcipher *crypto_alloc_blkcipher(
	const char *alg_name, u32 type, u32 mask)
{
	type &= ~CRYPTO_ALG_TYPE_MASK;
	type |= CRYPTO_ALG_TYPE_BLKCIPHER;
	mask |= CRYPTO_ALG_TYPE_MASK;

return __crypto_blkcipher_cast(crypto_alloc_base(alg_name, type, mask));
}

static inline struct crypto_tfm *crypto_blkcipher_tfm(
	struct crypto_blkcipher *tfm)
{
	return &tfm->base;
}

/**
 * crypto_free_blkcipher() - zeroize and free the block cipher handle
 * @tfm: cipher handle to be freed
 */
static inline void crypto_free_blkcipher(struct crypto_blkcipher *tfm)
{
	crypto_free_tfm(crypto_blkcipher_tfm(tfm));
}

/**
 * crypto_has_blkcipher() - Search for the availability of a block cipher
 * @alg_name: is the cra_name / name or cra_driver_name / driver name of the
 *	      block cipher
 * @type: specifies the type of the cipher
 * @mask: specifies the mask for the cipher
 *
 * Return: true when the block cipher is known to the kernel crypto API; false
 *	   otherwise
 */
static inline int crypto_has_blkcipher(const char *alg_name, u32 type, u32 mask)
{
	type &= ~CRYPTO_ALG_TYPE_MASK;
	type |= CRYPTO_ALG_TYPE_BLKCIPHER;
	mask |= CRYPTO_ALG_TYPE_MASK;

return crypto_has_alg(alg_name, type, mask);
}

/**
 * crypto_blkcipher_name() - return the name / cra_name from the cipher handle
 * @tfm: cipher handle
 *
 * Return: The character string holding the name of the cipher
 */
static inline const char *crypto_blkcipher_name(struct crypto_blkcipher *tfm)
{
	return crypto_tfm_alg_name(crypto_blkcipher_tfm(tfm));
}

static inline struct blkcipher_tfm *crypto_blkcipher_crt(
	struct crypto_blkcipher *tfm)
{
	return &crypto_blkcipher_tfm(tfm)->crt_blkcipher;
}

static inline struct blkcipher_alg *crypto_blkcipher_alg(
	struct crypto_blkcipher *tfm)
{
	return &crypto_blkcipher_tfm(tfm)->__crt_alg->cra_blkcipher;
}

/**
 * crypto_blkcipher_ivsize() - obtain IV size
 * @tfm: cipher handle
 *
 * The size of the IV for the block cipher referenced by the cipher handle is
 * returned. This IV size may be zero if the cipher does not need an IV.
 *
 * Return: IV size in bytes
 */
static inline unsigned int crypto_blkcipher_ivsize(struct crypto_blkcipher *tfm)
{
	return crypto_blkcipher_alg(tfm)->ivsize;
}

/**
 * crypto_blkcipher_blocksize() - obtain block size of cipher
 * @tfm: cipher handle
 *
 * The block size for the block cipher referenced with the cipher handle is
 * returned. The caller may use that information to allocate appropriate
 * memory for the data returned by the encryption or decryption operation.
 *
 * Return: block size of cipher
 */
static inline unsigned int crypto_blkcipher_blocksize(
	struct crypto_blkcipher *tfm)
{
	return crypto_tfm_alg_blocksize(crypto_blkcipher_tfm(tfm));
}

static inline unsigned int crypto_blkcipher_alignmask(
	struct crypto_blkcipher *tfm)
{
	return crypto_tfm_alg_alignmask(crypto_blkcipher_tfm(tfm));
}

static inline u32 crypto_blkcipher_get_flags(struct crypto_blkcipher *tfm)
{
	return crypto_tfm_get_flags(crypto_blkcipher_tfm(tfm));
}

static inline void crypto_blkcipher_set_flags(struct crypto_blkcipher *tfm,
					      u32 flags)
{
	crypto_tfm_set_flags(crypto_blkcipher_tfm(tfm), flags);
}

static inline void crypto_blkcipher_clear_flags(struct crypto_blkcipher *tfm,
						u32 flags)
{
	crypto_tfm_clear_flags(crypto_blkcipher_tfm(tfm), flags);
}

/**
 * crypto_blkcipher_setkey() - set key for cipher
 * @tfm: cipher handle
 * @key: buffer holding the key
 * @keylen: length of the key in bytes
 *
 * The caller provided key is set for the block cipher referenced by the cipher
 * handle.
 *
 * Note, the key length determines the cipher type. Many block ciphers implement
 * different cipher modes depending on the key size, such as AES-128 vs AES-192
 * vs. AES-256. When providing a 16 byte key for an AES cipher handle, AES-128
 * is performed.
 *
 * Return: 0 if the setting of the key was successful; < 0 if an error occurred
 */
static inline int crypto_blkcipher_setkey(struct crypto_blkcipher *tfm,
					  const u8 *key, unsigned int keylen)
{
	return crypto_blkcipher_crt(tfm)->setkey(crypto_blkcipher_tfm(tfm),
						 key, keylen);
}

/**
 * crypto_blkcipher_encrypt() - encrypt plaintext
 * @desc: reference to the block cipher handle with meta data
 * @dst: scatter/gather list that is filled by the cipher operation with the
 *	ciphertext
 * @src: scatter/gather list that holds the plaintext
 * @nbytes: number of bytes of the plaintext to encrypt.
 *
 * Encrypt plaintext data using the IV set by the caller with a preceding
 * call of crypto_blkcipher_set_iv.
 *
 * The blkcipher_desc data structure must be filled by the caller and can
 * reside on the stack. The caller must fill desc as follows: desc.tfm is filled
 * with the block cipher handle; desc.flags is filled with either
 * CRYPTO_TFM_REQ_MAY_SLEEP or 0.
 *
 * Return: 0 if the cipher operation was successful; < 0 if an error occurred
 */
static inline int crypto_blkcipher_encrypt(struct blkcipher_desc *desc,
					   struct scatterlist *dst,
					   struct scatterlist *src,
					   unsigned int nbytes)
{
	desc->info = crypto_blkcipher_crt(desc->tfm)->iv;
	return crypto_blkcipher_crt(desc->tfm)->encrypt(desc, dst, src, nbytes);
}

/**
 * crypto_blkcipher_encrypt_iv() - encrypt plaintext with dedicated IV
 * @desc: reference to the block cipher handle with meta data
 * @dst: scatter/gather list that is filled by the cipher operation with the
 *	ciphertext
 * @src: scatter/gather list that holds the plaintext
 * @nbytes: number of bytes of the plaintext to encrypt.
 *
 * Encrypt plaintext data with the use of an IV that is solely used for this
 * cipher operation. Any previously set IV is not used.
 *
 * The blkcipher_desc data structure must be filled by the caller and can
 * reside on the stack. The caller must fill desc as follows: desc.tfm is filled
 * with the block cipher handle; desc.info is filled with the IV to be used for
 * the current operation; desc.flags is filled with either
 * CRYPTO_TFM_REQ_MAY_SLEEP or 0.
 *
 * Return: 0 if the cipher operation was successful; < 0 if an error occurred
 */
static inline int crypto_blkcipher_encrypt_iv(struct blkcipher_desc *desc,
					      struct scatterlist *dst,
					      struct scatterlist *src,
					      unsigned int nbytes)
{
	return crypto_blkcipher_crt(desc->tfm)->encrypt(desc, dst, src, nbytes);
}

/**
 * crypto_blkcipher_decrypt() - decrypt ciphertext
 * @desc: reference to the block cipher handle with meta data
 * @dst: scatter/gather list that is filled by the cipher operation with the
 *	plaintext
 * @src: scatter/gather list that holds the ciphertext
 * @nbytes: number of bytes of the ciphertext to decrypt.
 *
 * Decrypt ciphertext data using the IV set by the caller with a preceding
 * call of crypto_blkcipher_set_iv.
 *
 * The blkcipher_desc data structure must be filled by the caller as documented
 * for the crypto_blkcipher_encrypt call above.
 *
 * Return: 0 if the cipher operation was successful; < 0 if an error occurred
 *
 */
static inline int crypto_blkcipher_decrypt(struct blkcipher_desc *desc,
					   struct scatterlist *dst,
					   struct scatterlist *src,
					   unsigned int nbytes)
{
	desc->info = crypto_blkcipher_crt(desc->tfm)->iv;
	return crypto_blkcipher_crt(desc->tfm)->decrypt(desc, dst, src, nbytes);
}

/**
 * crypto_blkcipher_decrypt_iv() - decrypt ciphertext with dedicated IV
 * @desc: reference to the block cipher handle with meta data
 * @dst: scatter/gather list that is filled by the cipher operation with the
 *	plaintext
 * @src: scatter/gather list that holds the ciphertext
 * @nbytes: number of bytes of the ciphertext to decrypt.
 *
 * Decrypt ciphertext data with the use of an IV that is solely used for this
 * cipher operation. Any previously set IV is not used.
 *
 * The blkcipher_desc data structure must be filled by the caller as documented
 * for the crypto_blkcipher_encrypt_iv call above.
 *
 * Return: 0 if the cipher operation was successful; < 0 if an error occurred
 */
static inline int crypto_blkcipher_decrypt_iv(struct blkcipher_desc *desc,
					      struct scatterlist *dst,
					      struct scatterlist *src,
					      unsigned int nbytes)
{
	return crypto_blkcipher_crt(desc->tfm)->decrypt(desc, dst, src, nbytes);
}

/**
 * crypto_blkcipher_set_iv() - set IV for cipher
 * @tfm: cipher handle
 * @src: buffer holding the IV
 * @len: length of the IV in bytes
 *
 * The caller provided IV is set for the block cipher referenced by the cipher
 * handle.
 */
static inline void crypto_blkcipher_set_iv(struct crypto_blkcipher *tfm,
					   const u8 *src, unsigned int len)
{
	memcpy(crypto_blkcipher_crt(tfm)->iv, src, len);
}

/**
 * crypto_blkcipher_get_iv() - obtain IV from cipher
 * @tfm: cipher handle
 * @dst: buffer filled with the IV
 * @len: length of the buffer dst
 *
 * The caller can obtain the IV set for the block cipher referenced by the
 * cipher handle and store it into the user-provided buffer. If the buffer
 * has an insufficient space, the IV is truncated to fit the buffer.
 */
static inline void crypto_blkcipher_get_iv(struct crypto_blkcipher *tfm,
					   u8 *dst, unsigned int len)
{
	memcpy(dst, crypto_blkcipher_crt(tfm)->iv, len);
}

/**
 * DOC: Single Block Cipher API
 *
 * The single block cipher API is used with the ciphers of type
 * CRYPTO_ALG_TYPE_CIPHER (listed as type "cipher" in /proc/crypto).
 *
 * Using the single block cipher API calls, operations with the basic cipher
 * primitive can be implemented. These cipher primitives exclude any block
 * chaining operations including IV handling.
 *
 * The purpose of this single block cipher API is to support the implementation
 * of templates or other concepts that only need to perform the cipher operation
 * on one block at a time. Templates invoke the underlying cipher primitive
 * block-wise and process either the input or the output data of these cipher
 * operations.
 */

static inline struct crypto_cipher *__crypto_cipher_cast(struct crypto_tfm *tfm)
{
	return (struct crypto_cipher *)tfm;
}

static inline struct crypto_cipher *crypto_cipher_cast(struct crypto_tfm *tfm)
{
	BUG_ON(crypto_tfm_alg_type(tfm) != CRYPTO_ALG_TYPE_CIPHER);
	return __crypto_cipher_cast(tfm);
}

/**
 * crypto_alloc_cipher() - allocate single block cipher handle
 * @alg_name: is the cra_name / name or cra_driver_name / driver name of the
 *	     single block cipher
 * @type: specifies the type of the cipher
 * @mask: specifies the mask for the cipher
 *
 * Allocate a cipher handle for a single block cipher. The returned struct
 * crypto_cipher is the cipher handle that is required for any subsequent API
 * invocation for that single block cipher.
 *
 * Return: allocated cipher handle in case of success; IS_ERR() is true in case
 *	   of an error, PTR_ERR() returns the error code.
 */
static inline struct crypto_cipher *crypto_alloc_cipher(const char *alg_name,
							u32 type, u32 mask)
{
	type &= ~CRYPTO_ALG_TYPE_MASK;
	type |= CRYPTO_ALG_TYPE_CIPHER;
	mask |= CRYPTO_ALG_TYPE_MASK;

return __crypto_cipher_cast(crypto_alloc_base(alg_name, type, mask));
}

static inline struct crypto_tfm *crypto_cipher_tfm(struct crypto_cipher *tfm)
{
	return &tfm->base;
}

/**
 * crypto_free_cipher() - zeroize and free the single block cipher handle
 * @tfm: cipher handle to be freed
 */
static inline void crypto_free_cipher(struct crypto_cipher *tfm)
{
	crypto_free_tfm(crypto_cipher_tfm(tfm));
}

/**
 * crypto_has_cipher() - Search for the availability of a single block cipher
 * @alg_name: is the cra_name / name or cra_driver_name / driver name of the
 *	     single block cipher
 * @type: specifies the type of the cipher
 * @mask: specifies the mask for the cipher
 *
 * Return: true when the single block cipher is known to the kernel crypto API;
 *	   false otherwise
 */
static inline int crypto_has_cipher(const char *alg_name, u32 type, u32 mask)
{
	type &= ~CRYPTO_ALG_TYPE_MASK;
	type |= CRYPTO_ALG_TYPE_CIPHER;
	mask |= CRYPTO_ALG_TYPE_MASK;

return crypto_has_alg(alg_name, type, mask);
}

static inline struct cipher_tfm *crypto_cipher_crt(struct crypto_cipher *tfm)
{
	return &crypto_cipher_tfm(tfm)->crt_cipher;
}

/**
 * crypto_cipher_blocksize() - obtain block size for cipher
 * @tfm: cipher handle
 *
 * The block size for the single block cipher referenced with the cipher handle
 * tfm is returned. The caller may use that information to allocate appropriate
 * memory for the data returned by the encryption or decryption operation
 *
 * Return: block size of cipher
 */
static inline unsigned int crypto_cipher_blocksize(struct crypto_cipher *tfm)
{
	return crypto_tfm_alg_blocksize(crypto_cipher_tfm(tfm));
}

static inline unsigned int crypto_cipher_alignmask(struct crypto_cipher *tfm)
{
	return crypto_tfm_alg_alignmask(crypto_cipher_tfm(tfm));
}

static inline u32 crypto_cipher_get_flags(struct crypto_cipher *tfm)
{
	return crypto_tfm_get_flags(crypto_cipher_tfm(tfm));
}

static inline void crypto_cipher_set_flags(struct crypto_cipher *tfm,
					   u32 flags)
{
	crypto_tfm_set_flags(crypto_cipher_tfm(tfm), flags);
}

static inline void crypto_cipher_clear_flags(struct crypto_cipher *tfm,
					     u32 flags)
{
	crypto_tfm_clear_flags(crypto_cipher_tfm(tfm), flags);
}

/**
 * crypto_cipher_setkey() - set key for cipher
 * @tfm: cipher handle
 * @key: buffer holding the key
 * @keylen: length of the key in bytes
 *
 * The caller provided key is set for the single block cipher referenced by the
 * cipher handle.
 *
 * Note, the key length determines the cipher type. Many block ciphers implement
 * different cipher modes depending on the key size, such as AES-128 vs AES-192
 * vs. AES-256. When providing a 16 byte key for an AES cipher handle, AES-128
 * is performed.
 *
 * Return: 0 if the setting of the key was successful; < 0 if an error occurred
 */
static inline int crypto_cipher_setkey(struct crypto_cipher *tfm,
                                       const u8 *key, unsigned int keylen)
{
	return crypto_cipher_crt(tfm)->cit_setkey(crypto_cipher_tfm(tfm),
						  key, keylen);
}

/**
 * crypto_cipher_encrypt_one() - encrypt one block of plaintext
 * @tfm: cipher handle
 * @dst: points to the buffer that will be filled with the ciphertext
 * @src: buffer holding the plaintext to be encrypted
 *
 * Invoke the encryption operation of one block. The caller must ensure that
 * the plaintext and ciphertext buffers are at least one block in size.
 */
static inline void crypto_cipher_encrypt_one(struct crypto_cipher *tfm,
					     u8 *dst, const u8 *src)
{
	crypto_cipher_crt(tfm)->cit_encrypt_one(crypto_cipher_tfm(tfm),
						dst, src);
}

/**
 * crypto_cipher_decrypt_one() - decrypt one block of ciphertext
 * @tfm: cipher handle
 * @dst: points to the buffer that will be filled with the plaintext
 * @src: buffer holding the ciphertext to be decrypted
 *
 * Invoke the decryption operation of one block. The caller must ensure that
 * the plaintext and ciphertext buffers are at least one block in size.
 */
static inline void crypto_cipher_decrypt_one(struct crypto_cipher *tfm,
					     u8 *dst, const u8 *src)
{
	crypto_cipher_crt(tfm)->cit_decrypt_one(crypto_cipher_tfm(tfm),
						dst, src);
}

static inline struct crypto_comp *__crypto_comp_cast(struct crypto_tfm *tfm)
{
	return (struct crypto_comp *)tfm;
}

static inline struct crypto_comp *crypto_comp_cast(struct crypto_tfm *tfm)
{
	BUG_ON((crypto_tfm_alg_type(tfm) ^ CRYPTO_ALG_TYPE_COMPRESS) &
	       CRYPTO_ALG_TYPE_MASK);
	return __crypto_comp_cast(tfm);
}

static inline struct crypto_comp *crypto_alloc_comp(const char *alg_name,
						    u32 type, u32 mask)
{
	type &= ~CRYPTO_ALG_TYPE_MASK;
	type |= CRYPTO_ALG_TYPE_COMPRESS;
	mask |= CRYPTO_ALG_TYPE_MASK;

return __crypto_comp_cast(crypto_alloc_base(alg_name, type, mask));
}

static inline struct crypto_tfm *crypto_comp_tfm(struct crypto_comp *tfm)
{
	return &tfm->base;
}

static inline void crypto_free_comp(struct crypto_comp *tfm)
{
	crypto_free_tfm(crypto_comp_tfm(tfm));
}

static inline int crypto_has_comp(const char *alg_name, u32 type, u32 mask)
{
	type &= ~CRYPTO_ALG_TYPE_MASK;
	type |= CRYPTO_ALG_TYPE_COMPRESS;
	mask |= CRYPTO_ALG_TYPE_MASK;

return crypto_has_alg(alg_name, type, mask);
}

static inline const char *crypto_comp_name(struct crypto_comp *tfm)
{
	return crypto_tfm_alg_name(crypto_comp_tfm(tfm));
}

static inline struct compress_tfm *crypto_comp_crt(struct crypto_comp *tfm)
{
	return &crypto_comp_tfm(tfm)->crt_compress;
}

static inline int crypto_comp_compress(struct crypto_comp *tfm,
                                       const u8 *src, unsigned int slen,
                                       u8 *dst, unsigned int *dlen)
{
	return crypto_comp_crt(tfm)->cot_compress(crypto_comp_tfm(tfm),
						  src, slen, dst, dlen);
}

static inline int crypto_comp_decompress(struct crypto_comp *tfm,
                                         const u8 *src, unsigned int slen,
                                         u8 *dst, unsigned int *dlen)
{
	return crypto_comp_crt(tfm)->cot_decompress(crypto_comp_tfm(tfm),
						    src, slen, dst, dlen);
}

#endif	/* _LINUX_CRYPTO_H */

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