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authorDamjan Marion <damarion@cisco.com>2019-04-24 15:20:35 +0200
committerNeale Ranns <nranns@cisco.com>2019-04-25 01:36:12 +0000
commitd1bed687231bb64cf7761da37431ba61bc32b6d8 (patch)
tree891af80a873db9dda53c18e95f5eeb9366a1cb07 /src/vnet/ipsec/ipsec_sa.c
parent20bc56ab58189ad9fa24feaaca3e76ea8e636140 (diff)
crypto: improve key handling
Change-Id: If96f661d507305da4b96cac7b1a8f14ba90676ad Signed-off-by: Damjan Marion <damarion@cisco.com>
Diffstat (limited to 'src/vnet/ipsec/ipsec_sa.c')
-rw-r--r--src/vnet/ipsec/ipsec_sa.c18
1 files changed, 18 insertions, 0 deletions
diff --git a/src/vnet/ipsec/ipsec_sa.c b/src/vnet/ipsec/ipsec_sa.c
index 8f41c95159b..2d2e90a1d27 100644
--- a/src/vnet/ipsec/ipsec_sa.c
+++ b/src/vnet/ipsec/ipsec_sa.c
@@ -100,6 +100,7 @@ ipsec_sa_set_crypto_alg (ipsec_sa_t * sa, ipsec_crypto_alg_t crypto_alg)
sa->crypto_block_size = im->crypto_algs[crypto_alg].block_size;
sa->crypto_enc_op_id = im->crypto_algs[crypto_alg].enc_op_id;
sa->crypto_dec_op_id = im->crypto_algs[crypto_alg].dec_op_id;
+ sa->crypto_calg = im->crypto_algs[crypto_alg].alg;
ASSERT (sa->crypto_iv_size <= ESP_MAX_IV_SIZE);
ASSERT (sa->crypto_block_size <= ESP_MAX_BLOCK_SIZE);
if (IPSEC_CRYPTO_ALG_IS_GCM (crypto_alg))
@@ -116,6 +117,7 @@ ipsec_sa_set_integ_alg (ipsec_sa_t * sa, ipsec_integ_alg_t integ_alg)
sa->integ_alg = integ_alg;
sa->integ_icv_size = im->integ_algs[integ_alg].icv_size;
sa->integ_op_id = im->integ_algs[integ_alg].op_id;
+ sa->integ_calg = im->integ_algs[integ_alg].alg;
ASSERT (sa->integ_icv_size <= ESP_MAX_ICV_SIZE);
}
@@ -133,6 +135,7 @@ ipsec_sa_add (u32 id,
const ip46_address_t * tun_src,
const ip46_address_t * tun_dst, u32 * sa_out_index)
{
+ vlib_main_t *vm = vlib_get_main ();
ipsec_main_t *im = &ipsec_main;
clib_error_t *err;
ipsec_sa_t *sa;
@@ -164,6 +167,13 @@ ipsec_sa_add (u32 id,
ip46_address_copy (&sa->tunnel_src_addr, tun_src);
ip46_address_copy (&sa->tunnel_dst_addr, tun_dst);
+ sa->crypto_key_index = vnet_crypto_key_add (vm,
+ im->crypto_algs[crypto_alg].alg,
+ (u8 *) ck->data, ck->len);
+ sa->integ_key_index = vnet_crypto_key_add (vm,
+ im->integ_algs[integ_alg].alg,
+ (u8 *) ik->data, ik->len);
+
err = ipsec_check_support_cb (im, sa);
if (err)
{
@@ -253,6 +263,7 @@ ipsec_sa_add (u32 id,
u32
ipsec_sa_del (u32 id)
{
+ vlib_main_t *vm = vlib_get_main ();
ipsec_main_t *im = &ipsec_main;
ipsec_sa_t *sa = 0;
uword *p;
@@ -286,6 +297,8 @@ ipsec_sa_del (u32 id)
dpo_reset (&sa->dpo[IPSEC_PROTOCOL_AH]);
dpo_reset (&sa->dpo[IPSEC_PROTOCOL_ESP]);
}
+ vnet_crypto_key_del (vm, sa->crypto_key_index);
+ vnet_crypto_key_del (vm, sa->integ_key_index);
pool_put (im->sad, sa);
return 0;
}
@@ -320,6 +333,7 @@ ipsec_is_sa_used (u32 sa_index)
int
ipsec_set_sa_key (u32 id, const ipsec_key_t * ck, const ipsec_key_t * ik)
{
+ vlib_main_t *vm = vlib_get_main ();
ipsec_main_t *im = &ipsec_main;
uword *p;
u32 sa_index;
@@ -337,12 +351,16 @@ ipsec_set_sa_key (u32 id, const ipsec_key_t * ck, const ipsec_key_t * ik)
if (ck)
{
clib_memcpy (&sa->crypto_key, ck, sizeof (sa->crypto_key));
+ vnet_crypto_key_modify (vm, sa->crypto_key_index, sa->crypto_calg,
+ (u8 *) ck->data, ck->len);
}
/* new integ key */
if (ik)
{
clib_memcpy (&sa->integ_key, 0, sizeof (sa->integ_key));
+ vnet_crypto_key_modify (vm, sa->integ_key_index, sa->integ_calg,
+ (u8 *) ik->data, ik->len);
}
if (ck || ik)