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| author | Stephan Mueller <smueller@chronox.de> | 2014-12-03 20:55:42 +0100 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2014-12-05 23:56:55 +0800 |
| commit | 204444147a40d4aa44da07f510fba6098ea85434 (patch) | |
| tree | 10c2bb59062715002f29d569fa382a3e7acbf5b2 /crypto/af_alg.c | |
| parent | 06c75e42fcd4c40cc4aebd666f2c5ef86cc576e7 (diff) | |
| download | linux-crypto-204444147a40d4aa44da07f510fba6098ea85434.tar.gz linux-crypto-204444147a40d4aa44da07f510fba6098ea85434.zip | |
crypto: af_alg - add user space interface for AEAD
AEAD requires the caller to specify the following information separate
from the data stream. This information allows the AEAD interface handler
to identify the AAD, ciphertext/plaintext and the authentication tag:
* Associated authentication data of arbitrary length and
length
* Length of authentication tag for encryption
Signed-off-by: Stephan Mueller <smueller@chronox.de>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'crypto/af_alg.c')
| -rw-r--r-- | crypto/af_alg.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/crypto/af_alg.c b/crypto/af_alg.c index 6a3ad801..68ff1137 100644 --- a/crypto/af_alg.c +++ b/crypto/af_alg.c @@ -421,6 +421,12 @@ int af_alg_cmsg_send(struct msghdr *msg, struct af_alg_control *con) con->op = *(u32 *)CMSG_DATA(cmsg); break; + case ALG_SET_AEAD_ASSOCLEN: + if (cmsg->cmsg_len < CMSG_LEN(sizeof(u32))) + return -EINVAL; + con->aead_assoclen = *(u32 *)CMSG_DATA(cmsg); + break; + default: return -EINVAL; } |