diff options
| -rw-r--r-- | crypto.4 | 4 | ||||
| -rw-r--r-- | ncr-sessions.c | 19 |
2 files changed, 23 insertions, 0 deletions
@@ -576,6 +576,10 @@ member. The following input attributes are recognized: .RS +.IP \fBNCR_ATTR_IV\fP +Only used for some operations and algorithms. +Optional, +IV from session initialization or left from last update is used if not present. .IP \fBNCR_ATTR_UPDATE_INPUT_DATA\fP A .B struct ncr_session_input_data diff --git a/ncr-sessions.c b/ncr-sessions.c index 0e48865c599..3691127a757 100644 --- a/ncr-sessions.c +++ b/ncr-sessions.c @@ -817,6 +817,7 @@ static int get_userbuf2(struct session_item_st *ses, struct nlattr *tb[], static int _ncr_session_update(struct session_item_st *sess, struct nlattr *tb[], int compat) { + const struct nlattr *nla; int ret; struct scatterlist *isg = NULL; struct scatterlist *osg = NULL; @@ -846,6 +847,15 @@ static int _ncr_session_update(struct session_item_st *sess, goto fail; } + if (sess->algorithm->is_symmetric + && sess->algorithm->needs_iv) { + nla = tb[NCR_ATTR_IV]; + if (nla != NULL) + cryptodev_cipher_set_iv(&sess->cipher, + nla_data(nla), + nla_len(nla)); + } + ret = _ncr_session_encrypt(sess, isg, isg_cnt, isg_size, osg, osg_cnt, &osg_size); if (ret < 0) { @@ -874,6 +884,15 @@ static int _ncr_session_update(struct session_item_st *sess, goto fail; } + if (sess->algorithm->is_symmetric + && sess->algorithm->needs_iv) { + nla = tb[NCR_ATTR_IV]; + if (nla != NULL) + cryptodev_cipher_set_iv(&sess->cipher, + nla_data(nla), + nla_len(nla)); + } + ret = _ncr_session_decrypt(sess, isg, isg_cnt, isg_size, osg, osg_cnt, &osg_size); if (ret < 0) { |