Commit 4e242d16 authored by Martin Willi's avatar Martin Willi Committed by David S. Miller

xfrm: Define new XFRM netlink auth attribute with specified truncation bits

The new XFRMA_ALG_AUTH_TRUNC attribute taking a xfrm_algo_auth as
argument allows the installation of authentication algorithms with
a truncation length specified in userspace, i.e. SHA256 with 128 bit
instead of 96 bit truncation.
Signed-off-by: default avatarMartin Willi <martin@strongswan.org>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent a661c419
......@@ -90,6 +90,13 @@ struct xfrm_algo {
char alg_key[0];
};
struct xfrm_algo_auth {
char alg_name[64];
unsigned int alg_key_len; /* in bits */
unsigned int alg_trunc_len; /* in bits */
char alg_key[0];
};
struct xfrm_algo_aead {
char alg_name[64];
unsigned int alg_key_len; /* in bits */
......@@ -274,6 +281,7 @@ enum xfrm_attr_type_t {
XFRMA_MIGRATE,
XFRMA_ALG_AEAD, /* struct xfrm_algo_aead */
XFRMA_KMADDRESS, /* struct xfrm_user_kmaddress */
XFRMA_ALG_AUTH_TRUNC, /* struct xfrm_algo_auth */
__XFRMA_MAX
#define XFRMA_MAX (__XFRMA_MAX - 1)
......
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