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* xor: make 'xor_blocks' a library routine for use with async_txDan Williams2007-07-133-0/+168
| | | | | | | | | | | | | | | | | | The async_tx api tries to use a dma engine for an operation, but will fall back to an optimized software routine otherwise. Xor support is implemented using the raid5 xor routines. For organizational purposes this routine is moved to a common area. The following fixes are also made: * rename xor_block => xor_blocks, suggested by Adrian Bunk * ensure that xor.o initializes before md.o in the built-in case * checkpatch.pl fixes * mark calibrate_xor_blocks __init, Adrian Bunk Cc: Adrian Bunk <bunk@stusta.de> Cc: NeilBrown <neilb@suse.de> Cc: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
* [CRYPTO] cryptd: Fix problem with cryptd and the freezerRafael J. Wysocki2007-05-311-1/+3
| | | | | | | | Make sure that cryptd is marked as nonfreezable and does not hold up the freezer. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* [CRYPTO] api: Read module pointer before freeing algorithmHerbert Xu2007-05-191-1/+3
| | | | | | | | | | | | | The function crypto_mod_put first frees the algorithm and then drops the reference to its module. Unfortunately we read the module pointer which after freeing the algorithm and that pointer sits inside the object that we just freed. So this patch reads the module pointer out before we free the object. Thanks to Luca Tettamanti for reporting this. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* [CRYPTO] tcrypt: Add missing error checkHerbert Xu2007-05-181-1/+1
| | | | | | | The return value of crypto_hash_final isn't checked in test_hash_cycles. This patch corrects this. Thanks to Eric Sesterhenn for reporting this. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* Fix trivial typos in Kconfig* filesDavid Sterba2007-05-091-1/+1
| | | | | | | Fix several typos in help text in Kconfig* files. Signed-off-by: David Sterba <dave@jikos.cz> Signed-off-by: Adrian Bunk <bunk@stusta.de>
* [CRYPTO] cryptomgr: Fix use after freeHerbert Xu2007-05-091-4/+3
| | | | | | | | | | By the time kthread_run returns the param may have already been freed so writing the returned thread_struct pointer to param is wrong. In fact, we don't need it in param anyway so this patch simply puts it on the stack. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* [CRYPTO] cryptd: Add software async crypto daemonHerbert Xu2007-05-023-0/+385
| | | | | | | | This patch adds the cryptd module which is a template that takes a synchronous software crypto algorithm and converts it to an asynchronous one by executing it in a kernel thread. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* [CRYPTO] api: Do not remove users unless new algorithm matchesHerbert Xu2007-05-021-26/+39
| | | | | | | | | | | | | As it is whenever a new algorithm with the same name is registered users of the old algorithm will be removed so that they can take advantage of the new algorithm. This presents a problem when the new algorithm is not equivalent to the old algorithm. In particular, the new algorithm might only function on top of the existing one. Hence we should not remove users unless they can make use of the new algorithm. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* [CRYPTO] cryptomgr: Fix parsing of nested templates Herbert Xu2007-05-021-13/+25
| | | | | | | This patch allows the use of nested templates by allowing the use of brackets inside a template parameter. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* [CRYPTO] api: Add async blkcipher typeHerbert Xu2007-05-024-0/+150
| | | | | | | | This patch adds the mid-level interface for asynchronous block ciphers. It also includes a generic queueing mechanism that can be used by other asynchronous crypto operations in future. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* [CRYPTO] templates: Pass type/mask when creating instancesHerbert Xu2007-05-028-34/+103
| | | | | | | | | | | | | This patch passes the type/mask along when constructing instances of templates. This is in preparation for templates that may support multiple types of instances depending on what is requested. For example, the planned software async crypto driver will use this construct. For the moment this allows us to check whether the instance constructed is of the correct type and avoid returning success if the type does not match. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* [CRYPTO] tcrypt: Use async blkcipher interfaceHerbert Xu2007-05-021-39/+82
| | | | | | | | This patch converts the tcrypt module to use the asynchronous block cipher interface. As all synchronous block ciphers can be used through the async interface, tcrypt is still able to test them. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* [CRYPTO] api: Add async block cipher interfaceHerbert Xu2007-05-021-5/+65
| | | | | | | | | | | | | | | | This patch adds the frontend interface for asynchronous block ciphers. In addition to the usual block cipher parameters, there is a callback function pointer and a data pointer. The callback will be invoked only if the encrypt/decrypt handlers return -EINPROGRESS. In other words, if the return value of zero the completion handler (or the equivalent code) needs to be invoked by the caller. The request structure is allocated and freed by the caller. Its size is determined by calling crypto_ablkcipher_reqsize(). The helpers ablkcipher_request_alloc/ablkcipher_request_free can be used to manage the memory for a request. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* [CRYPTO] api: Proc functions should be marked as unusedHerbert Xu2007-05-022-2/+2
| | | | | | | The proc functions were incorrectly marked as used rather than unused. They may be unused if proc is disabled. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* [PATCH] Update my email address from jkmaline@cc.hut.fi to j@w1.fiJouni Malinen2007-04-281-2/+2
| | | | | | | | | | | | | After 13 years of use, it looks like my email address is finally going to disappear. While this is likely to drop the amount of incoming spam greatly ;-), it may also affect more appropriate messages, so let's update my email address in various places. In addition, Host AP mailing list is subscribers-only and linux-wireless can also be used for discussing issues related to this driver which is now shown in MAINTAINERS. Signed-off-by: Jouni Malinen <j@w1.fi> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* [CRYPTO] api: Flush the current page right than the nextHerbert Xu2007-03-311-2/+6
| | | | | | | | On platforms where flush_dcache_page is needed we're currently flushing the next page right than the one we've just processed. This patch fixes the off-by-one error. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* [CRYPTO] api: Use the right value when advancing scatterwalk_copychunksHerbert Xu2007-03-311-1/+1
| | | | | | | In the scatterwalk_copychunks loop, We should be advancing by len_this_page and not nbytes. The latter is the total length. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* [CRYPTO] tcrypt: Fix error checking for comp allocationSebastian Siewior2007-03-201-1/+1
| | | | | | | | This patch fixes loading the tcrypt module while deflate isn't available at all (isn't build). Signed-off-by: Sebastian Siewior <linux-crypto@ml.breakpoint.cc> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* [CRYPTO] api: scatterwalk_copychunks() fails to advance through scatterlistJ. Bruce Fields2007-03-201-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | In the loop in scatterwalk_copychunks(), if walk->offset is zero, then scatterwalk_pagedone rounds that up to the nearest page boundary: walk->offset += PAGE_SIZE - 1; walk->offset &= PAGE_MASK; which is a no-op in this case, so we don't advance to the next element of the scatterlist array: if (walk->offset >= walk->sg->offset + walk->sg->length) scatterwalk_start(walk, sg_next(walk->sg)); and we end up copying the same data twice. It appears that other callers of scatterwalk_{page}done first advance walk->offset, so I believe that's the correct thing to do here. This caused a bug in NFS when run with krb5p security, which would cause some writes to fail with permissions errors--for example, writes of less than 8 bytes (the des blocksize) at the start of a file. A git-bisect shows the bug was originally introduced by 5c64097aa0f6dc4f27718ef47ca9a12538d62860, first in 2.6.19-rc1. Signed-off-by: "J. Bruce Fields" <bfields@citi.umich.edu> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* [PATCH] mark struct file_operations const 3Arjan van de Ven2007-02-121-1/+1
| | | | | | | | | | | Many struct file_operations in the kernel can be "const". Marking them const moves these to the .rodata section, which avoids false sharing with potential dirty data. In addition it'll catch accidental writes at compile time to these shared resources. Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Merge branch 'HEAD' of ↵David S. Miller2007-02-0920-591/+3337
|\ | | | | | | | | | | | | | | master.kernel.org:/pub/scm/linux/kernel/git/herbert/crypto-2.6 Conflicts: crypto/Kconfig
| * [CRYPTO] camellia: added the testing code of Camellia cipherNoriaki TAKAMIYA2007-02-062-1/+206
| | | | | | | | | | | | | | This patch adds the code of Camellia code for testing module. Signed-off-by: Noriaki TAKAMIYA <takamiya@po.ntts.co.jp> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
| * [CRYPTO] camellia: added the code of Camellia cipher algorithm.Noriaki TAKAMIYA2007-02-062-0/+1802
| | | | | | | | | | | | | | This patch adds the main code of Camellia cipher algorithm. Signed-off-by: Noriaki TAKAMIYA <takamiya@po.ntts.co.jp> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
| * [CRYPTO] camellia: Add Kconfig entry.Noriaki TAKAMIYA2007-02-061-0/+15
| | | | | | | | | | | | | | This patch adds the Kconfig entry for Camellia. Signed-off-by: Noriaki TAKAMIYA <takamiya@po.ntts.co.jp> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
| * [CRYPTO] xcbc: Use new cipher interfaceHerbert Xu2007-02-061-14/+16
| | | | | | | | | | | | This patch changes xcbc to use the new cipher encryt_one interface. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
| * [CRYPTO] api: Allow multiple frontends per backendHerbert Xu2007-02-065-18/+22
| | | | | | | | | | | | | | | | This patch adds support for multiple frontend types for each backend algorithm by passing the type and mask through to the backend type init function. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
| * [CRYPTO] api: Add type-safe spawnsHerbert Xu2007-02-067-27/+42
| | | | | | | | | | | | This patch allows spawns of specific types (e.g., cipher) to be allocated. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
| * [CRYPTO] api: Remove deprecated interfaceHerbert Xu2007-02-066-532/+16
| | | | | | | | | | | | This patch removes the old cipher interface and related code. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
| * [CRYPTO] tcrypt: Removed vestigial crypto_alloc_tfm callHerbert Xu2007-02-061-1/+1
| | | | | | | | | | | | | | The crypto_comp conversion missed the last remaining crypto_alloc_tfm call. This patch replaces it with crypto_alloc_comp. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
| * [CRYPTO] fcrypt: Add FCrypt from RxRPCDavid Howells2007-02-065-1/+574
| | | | | | | | | | | | | | Add a crypto module to provide FCrypt encryption as used by RxRPC. Signed-Off-By: David Howells <dhowells@redhat.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
| * [CRYPTO] pcbc: Add Propagated CBC templateDavid Howells2007-02-063-0/+358
| | | | | | | | | | | | | | Add PCBC crypto template support as used by RxRPC. Signed-Off-By: David Howells <dhowells@redhat.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
| * [CRYPTO] tcrypt: Added test vectors for sha384/sha512Andrew Donofrio2007-02-062-1/+259
| | | | | | | | | | | | | | | | | | This patch adds tests for SHA384 HMAC and SHA512 HMAC to the tcrypt module. Test data was taken from RFC4231. This patch is a follow-up to the discovery (bug 7646) that the kernel SHA384 HMAC implementation was not generating proper SHA384 HMACs. Signed-off-by: Andrew Donofrio <linuxbugzilla@kriptik.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
| * [CRYPTO] all: Check for usage in hard IRQ contextHerbert Xu2007-02-063-7/+37
| | | | | | | | | | | | | | | | | | | | Using blkcipher/hash crypto operations in hard IRQ context can lead to random memory corruption due to the reuse of kmap_atomic slots. Since crypto operations were never meant to be used in hard IRQ contexts, this patch checks for such usage and returns an error before kmap_atomic is performed. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* | [S390] move crypto options and some cleanup.Jan Glauber2007-02-051-49/+0
|/ | | | | | | | | | | | This patch moves the config options for the s390 crypto instructions to the standard "Hardware crypto devices" menu. In addition some cleanup has been done: use a flag for supported keylengths, add a warning about machien limitation, return ENOTSUPP in case the hardware has no support, remove superfluous printks and update email addresses. Signed-off-by: Jan Glauber <jan.glauber@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
* [PATCH] uml problems with linux/io.hAl Viro2006-12-131-1/+0
| | | | | | | | | | Remove useless includes of linux/io.h, don't even try to build iomap_copy on uml (it doesn't have readb() et.al., so...) Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Acked-by: Jeff Dike <jdike@addtoit.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [CRYPTO] sha512: Fix sha384 block sizeHerbert Xu2006-12-111-1/+1
| | | | | | | | | | The SHA384 block size should be 128 bytes, not 96 bytes. This was spotted by Andrew Donofrio. Fortunately the block size isn't actually used anywhere so this typo has had no real impact. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* [CRYPTO] lrw: round --> lrw_roundDavid S. Miller2006-12-071-2/+2
| | | | | | | | Fixes: crypto/lrw.c:99: warning: conflicting types for built-in function ‘round’ Signed-off-by: David S. Miller <davem@davemloft.net>
* [CRYPTO] tcrypt: LRW test vectorsRik Snel2006-12-072-4/+542
| | | | | | | | | | | | Do modprobe tcrypt mode=10 to check the included test vectors, they are from: http://grouper.ieee.org/groups/1619/email/pdf00017.pdf and from http://www.mail-archive.com/stds-p1619@listserv.ieee.org/msg00173.html. To make the last test vector fit, I had to increase the buffer size of input and result to 512 bytes. Signed-off-by: Rik Snel <rsnel@cube.dyndns.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* [CRYPTO] lrw: Liskov Rivest Wagner, a tweakable narrow block cipher modeRik Snel2006-12-073-0/+315
| | | | | | | | | | | | | | | | | | Main module, this implements the Liskov Rivest Wagner block cipher mode in the new blockcipher API. The implementation is based on ecb.c. The LRW-32-AES specification I used can be found at: http://grouper.ieee.org/groups/1619/email/pdf00017.pdf It implements the optimization specified as optional in the specification, and in addition it uses optimized multiplication routines from gf128mul.c. Since gf128mul.[ch] is not tested on bigendian, this cipher mode may currently fail badly on bigendian machines. Signed-off-by: Rik Snel <rsnel@cube.dyndns.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* [CRYPTO] lib: table driven multiplications in GF(2^128)Rik Snel2006-12-073-0/+477
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | A lot of cypher modes need multiplications in GF(2^128). LRW, ABL, GCM... I use functions from this library in my LRW implementation and I will also use them in my ABL (Arbitrary Block Length, an unencumbered (correct me if I am wrong, wide block cipher mode). Elements of GF(2^128) must be presented as u128 *, it encourages automatic and proper alignment. The library contains support for two different representations of GF(2^128), see the comment in gf128mul.h. There different levels of optimization (memory/speed tradeoff). The code is based on work by Dr Brian Gladman. Notable changes: - deletion of two optimization modes - change from u32 to u64 for faster handling on 64bit machines - support for 'bbe' representation in addition to the, already implemented, 'lle' representation. - move 'inline void' functions from header to 'static void' in the source file - update to use the linux coding style conventions The original can be found at: http://fp.gladman.plus.com/AES/modes.vc8.19-06-06.zip The copyright (and GPL statement) of the original author is preserved. Signed-off-by: Rik Snel <rsnel@cube.dyndns.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* [CRYPTO] api: Remove unused functionsAdrian Bunk2006-12-072-63/+0
| | | | | | | | | | | | This patch removes the following no longer used functions: - api.c: crypto_alg_available() - digest.c: crypto_digest_init() - digest.c: crypto_digest_update() - digest.c: crypto_digest_final() - digest.c: crypto_digest_digest() Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* [CRYPTO] xcbc: Make needlessly global code staticAdrian Bunk2006-12-071-6/+8
| | | | | | | | | | | | | | | | On Tue, Nov 14, 2006 at 01:41:25AM -0800, Andrew Morton wrote: >... > Changes since 2.6.19-rc5-mm2: >... > git-cryptodev.patch >... > git trees >... This patch makes some needlessly global code static. Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* [CRYPTO] tcrypt: Add test vectors of AES_XCBCKazunori MIYAZAWA2006-12-072-0/+71
| | | | | | | est vectors of XCBC with AES-128. Signed-off-by: Kazunori MIYAZAWA <miyazawa@linux-ipv6.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* [CRYPTO] xcbc: New algorithmKazunori MIYAZAWA2006-12-073-0/+358
| | | | | | | | | | | This is core code of XCBC. XCBC is an algorithm that forms a MAC algorithm out of a cipher algorithm. For example, AES-XCBC-MAC is a MAC algorithm based on the AES cipher algorithm. Signed-off-by: Kazunori MIYAZAWA <miyazawa@linux-ipv6.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* WorkStruct: Pass the work_struct pointer instead of context dataDavid Howells2006-11-221-3/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pass the work_struct pointer to the work function rather than context data. The work function can use container_of() to work out the data. For the cases where the container of the work_struct may go away the moment the pending bit is cleared, it is made possible to defer the release of the structure by deferring the clearing of the pending bit. To make this work, an extra flag is introduced into the management side of the work_struct. This governs auto-release of the structure upon execution. Ordinarily, the work queue executor would release the work_struct for further scheduling or deallocation by clearing the pending bit prior to jumping to the work function. This means that, unless the driver makes some guarantee itself that the work_struct won't go away, the work function may not access anything else in the work_struct or its container lest they be deallocated.. This is a problem if the auxiliary data is taken away (as done by the last patch). However, if the pending bit is *not* cleared before jumping to the work function, then the work function *may* access the work_struct and its container with no problems. But then the work function must itself release the work_struct by calling work_release(). In most cases, automatic release is fine, so this is the default. Special initiators exist for the non-auto-release case (ending in _NAR). Signed-Off-By: David Howells <dhowells@redhat.com>
* [CRYPTO] api: Select cryptomgr where neededHerbert Xu2006-10-161-1/+3
| | | | | | | | Since cryptomgr is the only way to construct algorithm instances for now it makes sense to let the templates depend on it as otherwise it may be left off inadvertently. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* [CRYPTO] api: fix crypto_alloc_base() return valueAkinobu Mita2006-10-111-7/+8
| | | | | | | | | | | | | | | This patch makes crypto_alloc_base() return proper return value. - If kzalloc() failure happens within __crypto_alloc_tfm(), crypto_alloc_base() returns NULL. But crypto_alloc_base() is supposed to return error code as pointer. So this patch makes it return -ENOMEM in that case. - crypto_alloc_base() is suppose to return -EINTR, if it is interrupted by signal. But it may not return -EINTR. Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* [PATCH] serpent: fix endian warningsAlexey Dobriyan2006-10-111-8/+8
| | | | | | Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [CRYPTO] hmac: Fix error truncation by unlikely()Herbert Xu2006-09-241-6/+18
| | | | | | | | The error return values are truncated by unlikely so we need to save it first. Thanks to Kyle Moffett for spotting this. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [CRYPTO] hmac: Fix hmac_init update callHerbert Xu2006-09-231-1/+1
| | | | | | | | | | | The crypto_hash_update call in hmac_init gave the number 1 instead of the length of the sg list in bytes. This is a missed conversion from the digest => hash change. As tcrypt only tests crypto_hash_digest it didn't catch this. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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