diff options
Diffstat (limited to 'drivers/crypto/virtio/virtio_crypto_common.h')
| -rw-r--r-- | drivers/crypto/virtio/virtio_crypto_common.h | 28 |
1 files changed, 21 insertions, 7 deletions
diff --git a/drivers/crypto/virtio/virtio_crypto_common.h b/drivers/crypto/virtio/virtio_crypto_common.h index a24f85c589e7..59a4c0259456 100644 --- a/drivers/crypto/virtio/virtio_crypto_common.h +++ b/drivers/crypto/virtio/virtio_crypto_common.h @@ -13,6 +13,7 @@ #include <crypto/aead.h> #include <crypto/aes.h> #include <crypto/engine.h> +#include <uapi/linux/virtio_crypto.h> /* Internal representation of a data virtqueue */ @@ -56,6 +57,7 @@ struct virtio_crypto { u32 mac_algo_l; u32 mac_algo_h; u32 aead_algo; + u32 akcipher_algo; /* Maximum length of cipher key */ u32 max_cipher_key_len; @@ -64,11 +66,6 @@ struct virtio_crypto { /* Maximum size of per request */ u64 max_size; - /* Control VQ buffers: protected by the ctrl_lock */ - struct virtio_crypto_op_ctrl_req ctrl; - struct virtio_crypto_session_input input; - struct virtio_crypto_inhdr ctrl_status; - unsigned long status; atomic_t ref_count; struct list_head list; @@ -84,6 +81,18 @@ struct virtio_crypto_sym_session_info { __u64 session_id; }; +/* + * Note: there are padding fields in request, clear them to zero before + * sending to host to avoid to divulge any information. + * Ex, virtio_crypto_ctrl_request::ctrl::u::destroy_session::padding[48] + */ +struct virtio_crypto_ctrl_request { + struct virtio_crypto_op_ctrl_req ctrl; + struct virtio_crypto_session_input input; + struct virtio_crypto_inhdr ctrl_status; + struct completion compl; +}; + struct virtio_crypto_request; typedef void (*virtio_crypto_data_callback) (struct virtio_crypto_request *vc_req, int len); @@ -129,7 +138,12 @@ static inline int virtio_crypto_get_current_node(void) return node; } -int virtio_crypto_algs_register(struct virtio_crypto *vcrypto); -void virtio_crypto_algs_unregister(struct virtio_crypto *vcrypto); +int virtio_crypto_skcipher_algs_register(struct virtio_crypto *vcrypto); +void virtio_crypto_skcipher_algs_unregister(struct virtio_crypto *vcrypto); +int virtio_crypto_akcipher_algs_register(struct virtio_crypto *vcrypto); +void virtio_crypto_akcipher_algs_unregister(struct virtio_crypto *vcrypto); +int virtio_crypto_ctrl_vq_request(struct virtio_crypto *vcrypto, struct scatterlist *sgs[], + unsigned int out_sgs, unsigned int in_sgs, + struct virtio_crypto_ctrl_request *vc_ctrl_req); #endif /* _VIRTIO_CRYPTO_COMMON_H */ |