kernel/linux
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ synced 2026-11-13 07:31:07 +00:00
Code Issues Releases Packages Activity
linux/crypto/lzo.c

101 lines
2 KiB
Raw Permalink Normal View History

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 336 Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with this program if not write to the free software foundation inc 51 franklin st fifth floor boston ma 02110 1301 usa extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 246 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Alexios Zavras <alexios.zavras@intel.com> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190530000436.674189849@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-29 16:57:50 -07:00
[CRYPTO] lzo: Add LZO compression algorithm support Add LZO compression algorithm support Signed-off-by: Zoltan Sogor <weth@inf.u-szeged.hu> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2007-12-07 16:53:23 +08:00
crypto: acomp - add support for lzo via scomp Add scomp backend for lzo compression algorithm. Signed-off-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-10-21 13:19:49 +01:00
crypto: lzo - drop obsolete 'comp' implementation The 'comp' API is obsolete and will be removed, so remove this comp implementation. Signed-off-by: Ard Biesheuvel <ardb@kernel.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2025-03-16 09:21:17 +08:00
[CRYPTO] lzo: Add LZO compression algorithm support Add LZO compression algorithm support Signed-off-by: Zoltan Sogor <weth@inf.u-szeged.hu> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2007-12-07 16:53:23 +08:00
crypto: scomp - Remove tfm argument from alloc/free_ctx The tfm argument is completely unused and meaningless as the same stream object is identical over all transforms of a given algorithm. Remove it. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2025-03-09 10:43:14 +08:00
crypto: acomp - add support for lzo via scomp Add scomp backend for lzo compression algorithm. Signed-off-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-10-21 13:19:49 +01:00
treewide: use kv[mz]alloc* rather than opencoded variants There are many code paths opencoding kvmalloc. Let's use the helper instead. The main difference to kvmalloc is that those users are usually not considering all the aspects of the memory allocator. E.g. allocation requests <= 32kB (with 4kB pages) are basically never failing and invoke OOM killer to satisfy the allocation. This sounds too disruptive for something that has a reasonable fallback - the vmalloc. On the other hand those requests might fallback to vmalloc even when the memory allocator would succeed after several more reclaim/compaction attempts previously. There is no guarantee something like that happens though. This patch converts many of those places to kv[mz]alloc* helpers because they are more conservative. Link: http://lkml.kernel.org/r/20170306103327.2766-2-mhocko@kernel.org Signed-off-by: Michal Hocko <mhocko@suse.com> Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com> # Xen bits Acked-by: Kees Cook <keescook@chromium.org> Acked-by: Vlastimil Babka <vbabka@suse.cz> Acked-by: Andreas Dilger <andreas.dilger@intel.com> # Lustre Acked-by: Christian Borntraeger <borntraeger@de.ibm.com> # KVM/s390 Acked-by: Dan Williams <dan.j.williams@intel.com> # nvdim Acked-by: David Sterba <dsterba@suse.com> # btrfs Acked-by: Ilya Dryomov <idryomov@gmail.com> # Ceph Acked-by: Tariq Toukan <tariqt@mellanox.com> # mlx4 Acked-by: Leon Romanovsky <leonro@mellanox.com> # mlx5 Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Herbert Xu <herbert@gondor.apana.org.au> Cc: Anton Vorontsov <anton@enomsg.org> Cc: Colin Cross <ccross@android.com> Cc: Tony Luck <tony.luck@intel.com> Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net> Cc: Ben Skeggs <bskeggs@redhat.com> Cc: Kent Overstreet <kent.overstreet@gmail.com> Cc: Santosh Raspatur <santosh@chelsio.com> Cc: Hariprasad S <hariprasad@chelsio.com> Cc: Yishai Hadas <yishaih@mellanox.com> Cc: Oleg Drokin <oleg.drokin@intel.com> Cc: "Yan, Zheng" <zyan@redhat.com> Cc: Alexander Viro <viro@zeniv.linux.org.uk> Cc: Alexei Starovoitov <ast@kernel.org> Cc: Eric Dumazet <eric.dumazet@gmail.com> Cc: David Miller <davem@davemloft.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-05-08 15:57:27 -07:00
crypto: acomp - add support for lzo via scomp Add scomp backend for lzo compression algorithm. Signed-off-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-10-21 13:19:49 +01:00
crypto: scomp - Remove tfm argument from alloc/free_ctx The tfm argument is completely unused and meaningless as the same stream object is identical over all transforms of a given algorithm. Remove it. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2025-03-09 10:43:14 +08:00
crypto: acomp - add support for lzo via scomp Add scomp backend for lzo compression algorithm. Signed-off-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-10-21 13:19:49 +01:00
[CRYPTO] lzo: Add LZO compression algorithm support Add LZO compression algorithm support Signed-off-by: Zoltan Sogor <weth@inf.u-szeged.hu> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2007-12-07 16:53:23 +08:00
crypto: lzo - Fix compression buffer overrun Unlike the decompression code, the compression code in LZO never checked for output overruns. It instead assumes that the caller always provides enough buffer space, disregarding the buffer length provided by the caller. Add a safe compression interface that checks for the end of buffer before each write. Use the safe interface in crypto/lzo. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2025-02-27 17:04:46 +08:00
[CRYPTO] lzo: Add LZO compression algorithm support Add LZO compression algorithm support Signed-off-by: Zoltan Sogor <weth@inf.u-szeged.hu> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2007-12-07 16:53:23 +08:00
crypto: acomp - add support for lzo via scomp Add scomp backend for lzo compression algorithm. Signed-off-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-10-21 13:19:49 +01:00
[CRYPTO] lzo: Add LZO compression algorithm support Add LZO compression algorithm support Signed-off-by: Zoltan Sogor <weth@inf.u-szeged.hu> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2007-12-07 16:53:23 +08:00
crypto: acomp - add support for lzo via scomp Add scomp backend for lzo compression algorithm. Signed-off-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-10-21 13:19:49 +01:00
[CRYPTO] lzo: Add LZO compression algorithm support Add LZO compression algorithm support Signed-off-by: Zoltan Sogor <weth@inf.u-szeged.hu> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2007-12-07 16:53:23 +08:00
crypto: acomp - add support for lzo via scomp Add scomp backend for lzo compression algorithm. Signed-off-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-10-21 13:19:49 +01:00
[CRYPTO] lzo: Add LZO compression algorithm support Add LZO compression algorithm support Signed-off-by: Zoltan Sogor <weth@inf.u-szeged.hu> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2007-12-07 16:53:23 +08:00
crypto: acomp - add support for lzo via scomp Add scomp backend for lzo compression algorithm. Signed-off-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-10-21 13:19:49 +01:00
crypto: comp - Use same definition of context alloc and free ops In commit 42d9f6c77479 ("crypto: acomp - Move scomp stream allocation code into acomp"), the crypto_acomp_streams struct was made to rely on having the alloc_ctx and free_ctx operations defined in the same order as the scomp_alg struct. But in that same commit, the alloc_ctx and free_ctx members of scomp_alg may be randomized by structure layout randomization, since they are contained in a pure ops structure (containing only function pointers). If the pointers within scomp_alg are randomized, but those in crypto_acomp_streams are not, then the order may no longer match. This fixes the problem by removing the union from scomp_alg so that both crypto_acomp_streams and scomp_alg will share the same definition of alloc_ctx and free_ctx, ensuring they will always have the same layout. Signed-off-by: Dan Moulding <dan@danm.net> Suggested-by: Herbert Xu <herbert@gondor.apana.org.au> Fixes: 42d9f6c77479 ("crypto: acomp - Move scomp stream allocation code into acomp") Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2025-09-08 10:12:43 -06:00
crypto: acomp - add support for lzo via scomp Add scomp backend for lzo compression algorithm. Signed-off-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-10-21 13:19:49 +01:00
[CRYPTO] lzo: Add LZO compression algorithm support Add LZO compression algorithm support Signed-off-by: Zoltan Sogor <weth@inf.u-szeged.hu> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2007-12-07 16:53:23 +08:00
[CRYPTO] all: Clean up init()/fini() On Thu, Mar 27, 2008 at 03:40:36PM +0100, Bodo Eggert wrote: > Kamalesh Babulal <kamalesh@linux.vnet.ibm.com> wrote: > > > This patch cleanups the crypto code, replaces the init() and fini() > > with the <algorithm name>_init/_fini > > This part ist OK. > > > or init/fini_<algorithm name> (if the > > <algorithm name>_init/_fini exist) > > Having init_foo and foo_init won't be a good thing, will it? I'd start > confusing them. > > What about foo_modinit instead? Thanks for the suggestion, the init() is replaced with <algorithm name>_mod_init () and fini () is replaced with <algorithm name>_mod_fini. Signed-off-by: Kamalesh Babulal <kamalesh@linux.vnet.ibm.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2008-04-05 21:00:57 +08:00
[CRYPTO] lzo: Add LZO compression algorithm support Add LZO compression algorithm support Signed-off-by: Zoltan Sogor <weth@inf.u-szeged.hu> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2007-12-07 16:53:23 +08:00
crypto: lzo - drop obsolete 'comp' implementation The 'comp' API is obsolete and will be removed, so remove this comp implementation. Signed-off-by: Ard Biesheuvel <ardb@kernel.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2025-03-16 09:21:17 +08:00
[CRYPTO] lzo: Add LZO compression algorithm support Add LZO compression algorithm support Signed-off-by: Zoltan Sogor <weth@inf.u-szeged.hu> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2007-12-07 16:53:23 +08:00
[CRYPTO] all: Clean up init()/fini() On Thu, Mar 27, 2008 at 03:40:36PM +0100, Bodo Eggert wrote: > Kamalesh Babulal <kamalesh@linux.vnet.ibm.com> wrote: > > > This patch cleanups the crypto code, replaces the init() and fini() > > with the <algorithm name>_init/_fini > > This part ist OK. > > > or init/fini_<algorithm name> (if the > > <algorithm name>_init/_fini exist) > > Having init_foo and foo_init won't be a good thing, will it? I'd start > confusing them. > > What about foo_modinit instead? Thanks for the suggestion, the init() is replaced with <algorithm name>_mod_init () and fini () is replaced with <algorithm name>_mod_fini. Signed-off-by: Kamalesh Babulal <kamalesh@linux.vnet.ibm.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2008-04-05 21:00:57 +08:00
[CRYPTO] lzo: Add LZO compression algorithm support Add LZO compression algorithm support Signed-off-by: Zoltan Sogor <weth@inf.u-szeged.hu> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2007-12-07 16:53:23 +08:00
crypto: acomp - add support for lzo via scomp Add scomp backend for lzo compression algorithm. Signed-off-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-10-21 13:19:49 +01:00
[CRYPTO] lzo: Add LZO compression algorithm support Add LZO compression algorithm support Signed-off-by: Zoltan Sogor <weth@inf.u-szeged.hu> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2007-12-07 16:53:23 +08:00
Revert "crypto: run initcalls for generic implementations earlier" This reverts commit c4741b23059794bd99beef0f700103b0d983b3fd. Crypto API self-tests no longer run at registration time and now occur either at late_initcall or upon the first use. Therefore the premise of the above commit no longer exists. Revert it and subsequent additions of subsys_initcall and arch_initcall. Note that lib/crypto calls will stay at subsys_initcall (or rather downgraded from arch_initcall) because they may need to occur before Crypto API registration. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2025-04-30 16:17:02 +08:00
[CRYPTO] all: Clean up init()/fini() On Thu, Mar 27, 2008 at 03:40:36PM +0100, Bodo Eggert wrote: > Kamalesh Babulal <kamalesh@linux.vnet.ibm.com> wrote: > > > This patch cleanups the crypto code, replaces the init() and fini() > > with the <algorithm name>_init/_fini > > This part ist OK. > > > or init/fini_<algorithm name> (if the > > <algorithm name>_init/_fini exist) > > Having init_foo and foo_init won't be a good thing, will it? I'd start > confusing them. > > What about foo_modinit instead? Thanks for the suggestion, the init() is replaced with <algorithm name>_mod_init () and fini () is replaced with <algorithm name>_mod_fini. Signed-off-by: Kamalesh Babulal <kamalesh@linux.vnet.ibm.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2008-04-05 21:00:57 +08:00
[CRYPTO] lzo: Add LZO compression algorithm support Add LZO compression algorithm support Signed-off-by: Zoltan Sogor <weth@inf.u-szeged.hu> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2007-12-07 16:53:23 +08:00
crypto: prefix module autoloading with "crypto-" This prefixes all crypto module loading with "crypto-" so we never run the risk of exposing module auto-loading to userspace via a crypto API, as demonstrated by Mathias Krause: https://lkml.org/lkml/2013/3/4/70 Signed-off-by: Kees Cook <keescook@chromium.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2014-11-20 17:05:53 -08:00