static clib_error_t *
ipsec_check_ah_support (ipsec_sa_t * sa)
{
+ ipsec_main_t *im = &ipsec_main;
+
if (sa->integ_alg == IPSEC_INTEG_ALG_NONE)
return clib_error_return (0, "unsupported none integ-alg");
+
+ if (!vnet_crypto_is_set_handler (im->integ_algs[sa->integ_alg].alg))
+ return clib_error_return (0, "No crypto engine support for %U",
+ format_ipsec_integ_alg, sa->integ_alg);
+
return 0;
}
static clib_error_t *
ipsec_check_esp_support (ipsec_sa_t * sa)
{
- return 0;
+ ipsec_main_t *im = &ipsec_main;
+
+ if (IPSEC_INTEG_ALG_NONE != sa->integ_alg)
+ {
+ if (!vnet_crypto_is_set_handler (im->integ_algs[sa->integ_alg].alg))
+ return clib_error_return (0, "No crypto engine support for %U",
+ format_ipsec_integ_alg, sa->integ_alg);
+ }
+ if (IPSEC_CRYPTO_ALG_NONE != sa->crypto_alg)
+ {
+ if (!vnet_crypto_is_set_handler (im->crypto_algs[sa->crypto_alg].alg))
+ return clib_error_return (0, "No crypto engine support for %U",
+ format_ipsec_crypto_alg, sa->crypto_alg);
+ }
+
+ return (0);
}
clib_error_t *
*out_next_index = vlib_node_add_next (vm, prev_node->index, node->index);
}
+void
+ipsec_add_feature (const char *arc_name,
+ const char *node_name, u32 * out_feature_index)
+{
+ u8 arc;
+
+ arc = vnet_get_feature_arc_index (arc_name);
+ ASSERT (arc != (u8) ~ 0);
+ *out_feature_index = vnet_get_feature_index (arc, node_name);
+}
+
u32
ipsec_register_ah_backend (vlib_main_t * vm, ipsec_main_t * im,
const char *name,
ipsec_register_esp_backend (vlib_main_t * vm, ipsec_main_t * im,
const char *name,
const char *esp4_encrypt_node_name,
+ const char *esp4_encrypt_node_tun_name,
const char *esp4_decrypt_node_name,
const char *esp6_encrypt_node_name,
+ const char *esp6_encrypt_node_tun_name,
const char *esp6_decrypt_node_name,
check_support_cb_t esp_check_support_cb,
add_del_sa_sess_cb_t esp_add_del_sa_sess_cb)
{
ipsec_esp_backend_t *b;
+
pool_get (im->esp_backends, b);
b->name = format (0, "%s%c", name, 0);
ipsec_add_node (vm, esp6_decrypt_node_name, "ipsec6-input-feature",
&b->esp6_decrypt_node_index, &b->esp6_decrypt_next_index);
+ ipsec_add_feature ("ip4-output", esp4_encrypt_node_tun_name,
+ &b->esp4_encrypt_tun_feature_index);
+ ipsec_add_feature ("ip6-output", esp6_encrypt_node_tun_name,
+ &b->esp6_encrypt_tun_feature_index);
+
b->check_support_cb = esp_check_support_cb;
b->add_del_sa_sess_cb = esp_add_del_sa_sess_cb;
return b - im->esp_backends;
}
-static walk_rc_t
-ipsec_sa_restack (ipsec_sa_t * sa, void *ctx)
+clib_error_t *
+ipsec_rsc_in_use (ipsec_main_t * im)
{
- ipsec_sa_stack (sa);
+ /* return an error is crypto resource are in use */
+ if (pool_elts (im->sad) > 0)
+ return clib_error_return (0,
+ "%d SA entries configured",
+ pool_elts (im->sad));
- return (WALK_CONTINUE);
+ return (NULL);
}
int
ipsec_select_ah_backend (ipsec_main_t * im, u32 backend_idx)
{
- if (pool_elts (im->sad) > 0
- || pool_is_free_index (im->ah_backends, backend_idx))
- {
- return -1;
- }
+ if (ipsec_rsc_in_use (im))
+ return VNET_API_ERROR_RSRC_IN_USE;
+
+ if (pool_is_free_index (im->ah_backends, backend_idx))
+ return VNET_API_ERROR_INVALID_VALUE;
+
ipsec_ah_backend_t *b = pool_elt_at_index (im->ah_backends, backend_idx);
im->ah_current_backend = backend_idx;
im->ah4_encrypt_node_index = b->ah4_encrypt_node_index;
im->ah6_encrypt_next_index = b->ah6_encrypt_next_index;
im->ah6_decrypt_next_index = b->ah6_decrypt_next_index;
- ipsec_sa_walk (ipsec_sa_restack, NULL);
return 0;
}
int
ipsec_select_esp_backend (ipsec_main_t * im, u32 backend_idx)
{
- if (pool_elts (im->sad) > 0
- || pool_is_free_index (im->esp_backends, backend_idx))
- {
- return -1;
- }
+ if (ipsec_rsc_in_use (im))
+ return VNET_API_ERROR_RSRC_IN_USE;
+
+ if (pool_is_free_index (im->esp_backends, backend_idx))
+ return VNET_API_ERROR_INVALID_VALUE;
+
ipsec_esp_backend_t *b = pool_elt_at_index (im->esp_backends, backend_idx);
im->esp_current_backend = backend_idx;
im->esp4_encrypt_node_index = b->esp4_encrypt_node_index;
im->esp6_encrypt_next_index = b->esp6_encrypt_next_index;
im->esp6_decrypt_next_index = b->esp6_decrypt_next_index;
- ipsec_sa_walk (ipsec_sa_restack, NULL);
+ im->esp4_encrypt_tun_feature_index = b->esp4_encrypt_tun_feature_index;
+ im->esp6_encrypt_tun_feature_index = b->esp6_encrypt_tun_feature_index;
+
return 0;
}
ipsec_main_t *im = &ipsec_main;
ipsec_main_crypto_alg_t *a;
+ /* Backend registration requires the feature arcs to be set up */
+ if ((error = vlib_call_init_function (vm, vnet_feature_init)))
+ return (error);
+
im->vnet_main = vnet_get_main ();
im->vlib_main = vm;
ASSERT (node);
im->error_drop_node_index = node->index;
- u32 idx = ipsec_register_ah_backend (vm, im, "default openssl backend",
+ u32 idx = ipsec_register_ah_backend (vm, im, "crypto engine backend",
"ah4-encrypt",
"ah4-decrypt",
"ah6-encrypt",
ASSERT (0 == rv);
(void) (rv); // avoid warning
- idx = ipsec_register_esp_backend (vm, im, "default openssl backend",
+ idx = ipsec_register_esp_backend (vm, im, "crypto engine backend",
"esp4-encrypt",
+ "esp4-encrypt-tun",
"esp4-decrypt",
"esp6-encrypt",
+ "esp6-encrypt-tun",
"esp6-decrypt",
ipsec_check_esp_support, NULL);
im->esp_default_backend = idx;
if ((error = vlib_call_init_function (vm, ipsec_cli_init)))
return error;
- if ((error = vlib_call_init_function (vm, ipsec_tunnel_if_init)))
- return error;
-
vec_validate (im->crypto_algs, IPSEC_CRYPTO_N_ALG - 1);
+ a = im->crypto_algs + IPSEC_CRYPTO_ALG_NONE;
+ a->enc_op_id = VNET_CRYPTO_OP_NONE;
+ a->dec_op_id = VNET_CRYPTO_OP_NONE;
+ a->alg = VNET_CRYPTO_ALG_NONE;
+ a->iv_size = 0;
+ a->block_size = 1;
+
a = im->crypto_algs + IPSEC_CRYPTO_ALG_DES_CBC;
a->enc_op_id = VNET_CRYPTO_OP_DES_CBC_ENC;
a->dec_op_id = VNET_CRYPTO_OP_DES_CBC_DEC;
vec_validate (im->integ_algs, IPSEC_INTEG_N_ALG - 1);
ipsec_main_integ_alg_t *i;
+ i = &im->integ_algs[IPSEC_INTEG_ALG_MD5_96];
+ i->op_id = VNET_CRYPTO_OP_MD5_HMAC;
+ i->alg = VNET_CRYPTO_ALG_HMAC_MD5;
+ i->icv_size = 12;
+
i = &im->integ_algs[IPSEC_INTEG_ALG_SHA1_96];
i->op_id = VNET_CRYPTO_OP_SHA1_HMAC;
i->alg = VNET_CRYPTO_ALG_HMAC_SHA1;
i = &im->integ_algs[IPSEC_INTEG_ALG_SHA_384_192];
i->op_id = VNET_CRYPTO_OP_SHA384_HMAC;
- i->alg = VNET_CRYPTO_ALG_HMAC_SHA512;
+ i->alg = VNET_CRYPTO_ALG_HMAC_SHA384;
i->icv_size = 24;
i = &im->integ_algs[IPSEC_INTEG_ALG_SHA_512_256];
Code Review / vpp.git / blobdiff