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authorLijian Zhang <Lijian.Zhang@arm.com>2023-11-08 09:09:10 +0000
committerFan Zhang <fanzhang.oss@gmail.com>2024-02-19 15:36:36 +0000
commit6f8252e83c17efa859cf937683b1caf723c439f2 (patch)
tree10e5d1bd5ba25cecc60e12cd48f1987a614f8fba /src
parentff71939c30ae81241808da1843e82cf2dfa92344 (diff)
wireguard: notify key changes to crypto engine
This is a prerequisite patch for the following openssl API optimization patch, which tries to offload openssl ctx init and key expansion work to the initialization stage. Wireguard adds crypto keys via vnet_crypto_key_add (), and whenever it modifies the keys, the underneath openssl crypto engine shoud be informed of the changes to update the openssl ctx. Type: feature Signed-off-by: Lijian Zhang <Lijian.Zhang@arm.com> Change-Id: I3e8f033f3f77eebcecfbd06e8e3bbbfdc95a50e2
Diffstat (limited to 'src')
-rw-r--r--src/plugins/wireguard/wireguard_noise.c6
-rw-r--r--src/vnet/crypto/crypto.c11
-rw-r--r--src/vnet/crypto/crypto.h1
3 files changed, 18 insertions, 0 deletions
diff --git a/src/plugins/wireguard/wireguard_noise.c b/src/plugins/wireguard/wireguard_noise.c
index 19b0ce5a58c..5fe2e44b03b 100644
--- a/src/plugins/wireguard/wireguard_noise.c
+++ b/src/plugins/wireguard/wireguard_noise.c
@@ -144,6 +144,7 @@ noise_create_initiation (vlib_main_t * vm, noise_remote_t * r,
/* es */
if (!noise_mix_dh (hs->hs_ck, key, hs->hs_e, r->r_public))
goto error;
+ vnet_crypto_key_update (vm, key_idx);
/* s */
noise_msg_encrypt (vm, es, l->l_public, NOISE_PUBLIC_KEY_LEN, key_idx,
@@ -152,6 +153,7 @@ noise_create_initiation (vlib_main_t * vm, noise_remote_t * r,
/* ss */
if (!noise_mix_ss (hs->hs_ck, key, r->r_ss))
goto error;
+ vnet_crypto_key_update (vm, key_idx);
/* {t} */
noise_tai64n_now (ets);
@@ -198,6 +200,7 @@ noise_consume_initiation (vlib_main_t * vm, noise_local_t * l,
/* es */
if (!noise_mix_dh (hs.hs_ck, key, l->l_private, ue))
goto error;
+ vnet_crypto_key_update (vm, key_idx);
/* s */
@@ -213,6 +216,7 @@ noise_consume_initiation (vlib_main_t * vm, noise_local_t * l,
/* ss */
if (!noise_mix_ss (hs.hs_ck, key, r->r_ss))
goto error;
+ vnet_crypto_key_update (vm, key_idx);
/* {t} */
if (!noise_msg_decrypt (vm, timestamp, ets,
@@ -287,6 +291,7 @@ noise_create_response (vlib_main_t * vm, noise_remote_t * r, uint32_t * s_idx,
/* psk */
noise_mix_psk (hs->hs_ck, hs->hs_hash, key, r->r_psk);
+ vnet_crypto_key_update (vm, key_idx);
/* {} */
noise_msg_encrypt (vm, en, NULL, 0, key_idx, hs->hs_hash);
@@ -341,6 +346,7 @@ noise_consume_response (vlib_main_t * vm, noise_remote_t * r, uint32_t s_idx,
/* psk */
noise_mix_psk (hs.hs_ck, hs.hs_hash, key, preshared_key);
+ vnet_crypto_key_update (vm, key_idx);
/* {} */
diff --git a/src/vnet/crypto/crypto.c b/src/vnet/crypto/crypto.c
index 3cada7591b1..25918f022cb 100644
--- a/src/vnet/crypto/crypto.c
+++ b/src/vnet/crypto/crypto.c
@@ -483,6 +483,17 @@ vnet_crypto_key_del (vlib_main_t * vm, vnet_crypto_key_index_t index)
pool_put (cm->keys, key);
}
+void
+vnet_crypto_key_update (vlib_main_t *vm, vnet_crypto_key_index_t index)
+{
+ vnet_crypto_main_t *cm = &crypto_main;
+ vnet_crypto_engine_t *engine;
+
+ vec_foreach (engine, cm->engines)
+ if (engine->key_op_handler)
+ engine->key_op_handler (vm, VNET_CRYPTO_KEY_OP_MODIFY, index);
+}
+
vnet_crypto_async_alg_t
vnet_crypto_link_algs (vnet_crypto_alg_t crypto_alg,
vnet_crypto_alg_t integ_alg)
diff --git a/src/vnet/crypto/crypto.h b/src/vnet/crypto/crypto.h
index 877eb183ea6..8200bad7eeb 100644
--- a/src/vnet/crypto/crypto.h
+++ b/src/vnet/crypto/crypto.h
@@ -496,6 +496,7 @@ int vnet_crypto_is_set_handler (vnet_crypto_alg_t alg);
u32 vnet_crypto_key_add (vlib_main_t * vm, vnet_crypto_alg_t alg,
u8 * data, u16 length);
void vnet_crypto_key_del (vlib_main_t * vm, vnet_crypto_key_index_t index);
+void vnet_crypto_key_update (vlib_main_t *vm, vnet_crypto_key_index_t index);
/**
* Use 2 created keys to generate new key for linked algs (cipher + integ)