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2017-10-11mac80211: aead api to reduce redundancyXiang Gao1-11/+31
Currently, the aes_ccm.c and aes_gcm.c are almost line by line copy of each other. This patch reduce code redundancy by moving the code in these two files to crypto/aead_api.c to make it a higher level aead api. The file aes_ccm.c and aes_gcm.c are removed and all the functions there are now implemented in their headers using the newly added aead api. Signed-off-by: Xiang Gao <qasdfgtyuiop@gmail.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-10-17mac80211: move struct aead_req off the stackArd Biesheuvel1-3/+5
Some crypto implementations (such as the generic CCM wrapper in crypto/) use scatterlists to map fields of private data in their struct aead_req. This means these data structures cannot live in the vmalloc area, which means that they cannot live on the stack (with CONFIG_VMAP_STACK.) This currently occurs only with the generic software implementation, but the private data and usage is implementation specific, so move the whole data structures off the stack into heap by allocating every time we need to use them. In addition, take care not to put any of our own stack allocations into scatterlists. This involves reserving some extra room when allocating the aead_request structures, and referring to those allocations in the scatter- lists (while copying the data from the stack before the crypto operation) Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-01-27mac80111: Add CCMP-256 cipherJouni Malinen1-3/+7
This allows mac80211 to configure CCMP-256 to the driver and also use software-implementation within mac80211 when the driver does not support this with hardware accelaration. Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com> [squash ccmp256 -> mic_len argument change] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-10-11mac80211: port CCMP to cryptoapi's CCM driverArd Biesheuvel1-8/+6
Use the generic CCM aead chaining mode driver rather than a local implementation that sits right on top of the core AES cipher. This allows the use of accelerated implementations of either CCM as a whole or the CTR mode which it encapsulates. Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2011-07-08mac80211: use AES_BLOCK_SIZEJohannes Berg1-2/+0
mac80211 has a defnition of AES_BLOCK_SIZE and multiple definitions of AES_BLOCK_LEN. Remove them all and use crypto/aes.h. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-07-08mac80211: pass scratch buffer directly, remove additional pointersHarvey Harrison1-2/+2
Recalculate the offset pointers in the ccmp calculations rather than in the callers. Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-05-07mac80211: a few code cleanupsJohannes Berg1-1/+1
This has some code cleanups (some inspired by checkpatch), I got bored at probably a third of the output though so if somebody else wants to... Signed-off-by: Johannes Berg <johannes@sipsolutions.net Signed-off-by: John W. Linville <linville@tuxdriver.com>
2007-05-05[MAC80211]: Add mac80211 wireless stack.Jiri Benc1-0/+26
Add mac80211, the IEEE 802.11 software MAC layer. Signed-off-by: Jiri Benc <jbenc@suse.cz> Signed-off-by: John W. Linville <linville@tuxdriver.com>