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path: root/net/mac80211/aes_gcm.c
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2016-10-17mac80211: move struct aead_req off the stackArd Biesheuvel
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>
2015-05-28mac80211: Switch to new AEAD interfaceHerbert Xu
This patch makes use of the new AEAD interface which uses a single SG list instead of separate lists for the AD and plain text. Tested-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2015-04-23mac80211: Include crypto/aead.hHerbert Xu
All users of AEAD should include crypto/aead.h instead of include/linux/crypto.h. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Acked-by: David S. Miller <davem@davemloft.net>
2015-03-30mac80111: aes_gcm: clean up ieee80211_aes_gcm_key_setup_encrypt()Johannes Berg
This code is written using an anti-pattern called "success handling" which makes it hard to read, especially if you are used to normal kernel style. It should instead be written as a list of directives in a row with branches for error handling. (Basically copied from Dan's previous patch for CCM) Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-01-27mac80111: Add GCMP and GCMP-256 ciphersJouni Malinen
This allows mac80211 to configure GCMP and GCMP-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> [remove a spurious newline] Signed-off-by: Johannes Berg <johannes.berg@intel.com>