d/numam-dpdk
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

crypto/kasumi: restrict cipher bit-level operations

Browse Source 
KASUMI PMD only supports bit-level cipher operations
when destination buffer is different from the source
(out of place operations). This commit adds a check
in the code to prevent the user from trying to perform
in-place bit-level ciphering.

Fixes: 2773c86d061a ("crypto/kasumi: add driver for KASUMI library")

Signed-off-by: Pablo de Lara <pablo.de.lara.guarch@intel.com>
This commit is contained in:
Pablo de Lara 2016-07-09 17:35:58 +01:00 committed by Thomas Monjalon
parent 372201e207
commit ebee5594a3
2 changed files with 9 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
doc/guides/cryptodevs/kasumi.rst
View File

@ -52,6 +52,9 @@ Limitations
* Chained mbufs are not supported.
* KASUMI(F9) supported only if hash offset field is byte-aligned.
* In-place bit-level operations for KASUMI(F8) are not supported
(if length and/or offset of data to be ciphered is not byte-aligned).
Installation
------------

9
drivers/crypto/kasumi/rte_kasumi_pmd.c
View File

@ -243,9 +243,12 @@ process_kasumi_cipher_op_bit(struct rte_crypto_op *op,
offset_in_bits = op->sym->cipher.data.offset;
src = rte_pktmbuf_mtod(op->sym->m_src, uint8_t *);
dst = op->sym->m_dst ?
rte_pktmbuf_mtod(op->sym->m_dst, uint8_t *) :
rte_pktmbuf_mtod(op->sym->m_src, uint8_t *);
if (op->sym->m_dst == NULL) {
op->status = RTE_CRYPTO_OP_STATUS_INVALID_ARGS;
KASUMI_LOG_ERR("bit-level in-place not supported\n");
return 0;
}
dst = rte_pktmbuf_mtod(op->sym->m_dst, uint8_t *);
IV = *((uint64_t *)(op->sym->cipher.iv.data));
length_in_bits = op->sym->cipher.data.length;