#include <vnet/api_errno.h>
#include <vnet/ip/ip.h>
#include <vnet/interface.h>
+#include <vnet/udp/udp.h>
#include <vnet/ipsec/ipsec.h>
#include <vnet/ipsec/ikev2.h>
-
-#if DPDK_CRYPTO==1
-#include <vnet/devices/dpdk/ipsec/esp.h>
-#define ESP_NODE "dpdk-esp-encrypt"
-#else
#include <vnet/ipsec/esp.h>
-#define ESP_NODE "esp-encrypt"
-#endif
+#include <vnet/ipsec/ah.h>
-#if DPDK_CRYPTO==0
-/* dummy function */
-static int
-add_del_sa_sess (u32 sa_index, u8 is_add)
-{
- return 0;
-}
-#endif
+
+ipsec_main_t ipsec_main;
u32
ipsec_get_sa_index_by_sa_id (u32 sa_id)
sw_if_index, spd_id, spd_index);
/* enable IPsec on TX */
- vnet_feature_enable_disable ("ip4-output", "ipsec-output-ip4", sw_if_index,
+ vnet_feature_enable_disable ("ip4-output", "ipsec4-output", sw_if_index,
is_add, 0, 0);
- vnet_feature_enable_disable ("ip6-output", "ipsec-output-ip6", sw_if_index,
+ vnet_feature_enable_disable ("ip6-output", "ipsec6-output", sw_if_index,
is_add, 0, 0);
+ config.spd_index = spd_index;
+
/* enable IPsec on RX */
- vnet_feature_enable_disable ("ip4-unicast", "ipsec-input-ip4", sw_if_index,
+ vnet_feature_enable_disable ("ip4-unicast", "ipsec4-input", sw_if_index,
is_add, &config, sizeof (config));
- vnet_feature_enable_disable ("ip6-unicast", "ipsec-input-ip6", sw_if_index,
+ vnet_feature_enable_disable ("ip6-unicast", "ipsec6-input", sw_if_index,
is_add, &config, sizeof (config));
return 0;
else /* create new SPD */
{
pool_get (im->spds, spd);
- memset (spd, 0, sizeof (*spd));
+ clib_memset (spd, 0, sizeof (*spd));
spd_index = spd - im->spds;
spd->id = spd_id;
hash_set (im->spd_index_by_spd_id, spd_id, spd_index);
static int
ipsec_spd_entry_sort (void *a1, void *a2)
{
- ipsec_main_t *im = &ipsec_main;
u32 *id1 = a1;
u32 *id2 = a2;
- ipsec_spd_t *spd;
+ ipsec_spd_t *spd = ipsec_main.spd_to_sort;
ipsec_policy_t *p1, *p2;
- /* *INDENT-OFF* */
- pool_foreach (spd, im->spds, ({
- p1 = pool_elt_at_index(spd->policies, *id1);
- p2 = pool_elt_at_index(spd->policies, *id2);
- if (p1 && p2)
- return p2->priority - p1->priority;
- }));
- /* *INDENT-ON* */
+ p1 = pool_elt_at_index (spd->policies, *id1);
+ p2 = pool_elt_at_index (spd->policies, *id2);
+ if (p1 && p2)
+ return p2->priority - p1->priority;
return 0;
}
clib_memcpy (vp, policy, sizeof (*vp));
policy_index = vp - spd->policies;
+ ipsec_main.spd_to_sort = spd;
+
if (policy->is_outbound)
{
if (policy->is_ipv6)
}
}
+ ipsec_main.spd_to_sort = NULL;
}
else
{
if (vec_elt(spd->ipv4_inbound_policy_discard_and_bypass_indices, j) == i) {
vec_del1 (spd->ipv4_inbound_policy_discard_and_bypass_indices, j);
break;
+ }
}
}
}
}
pool_put (spd->policies, vp);
break;
- }
}));
/* *INDENT-ON* */
}
return 0;
}
-static u8
+u8
ipsec_is_sa_used (u32 sa_index)
{
ipsec_main_t *im = &ipsec_main;
return 0;
}
+clib_error_t *
+ipsec_call_add_del_callbacks (ipsec_main_t * im, ipsec_sa_t * sa,
+ u32 sa_index, int is_add)
+{
+ ipsec_ah_backend_t *ab;
+ ipsec_esp_backend_t *eb;
+ switch (sa->protocol)
+ {
+ case IPSEC_PROTOCOL_AH:
+ ab = pool_elt_at_index (im->ah_backends, im->ah_current_backend);
+ if (ab->add_del_sa_sess_cb)
+ return ab->add_del_sa_sess_cb (sa_index, is_add);
+ break;
+ case IPSEC_PROTOCOL_ESP:
+ eb = pool_elt_at_index (im->esp_backends, im->esp_current_backend);
+ if (eb->add_del_sa_sess_cb)
+ return eb->add_del_sa_sess_cb (sa_index, is_add);
+ break;
+ }
+ return 0;
+}
+
int
ipsec_add_del_sa (vlib_main_t * vm, ipsec_sa_t * new_sa, int is_add)
{
ipsec_sa_t *sa = 0;
uword *p;
u32 sa_index;
+ clib_error_t *err;
clib_warning ("id %u spi %u", new_sa->id, new_sa->spi);
return VNET_API_ERROR_SYSCALL_ERROR_1; /* sa used in policy */
}
hash_unset (im->sa_index_by_sa_id, sa->id);
- add_del_sa_sess (sa_index, is_add);
+ err = ipsec_call_add_del_callbacks (im, sa, sa_index, 0);
+ if (err)
+ return VNET_API_ERROR_SYSCALL_ERROR_1;
pool_put (im->sad, sa);
}
else /* create new SA */
clib_memcpy (sa, new_sa, sizeof (*sa));
sa_index = sa - im->sad;
hash_set (im->sa_index_by_sa_id, sa->id, sa_index);
- if (add_del_sa_sess (sa_index, is_add) < 0)
+ err = ipsec_call_add_del_callbacks (im, sa, sa_index, 1);
+ if (err)
return VNET_API_ERROR_SYSCALL_ERROR_1;
}
return 0;
uword *p;
u32 sa_index;
ipsec_sa_t *sa = 0;
+ clib_error_t *err;
p = hash_get (im->sa_index_by_sa_id, sa_update->id);
if (!p)
sa->integ_key_len = sa_update->integ_key_len;
}
- if (sa->crypto_key_len + sa->integ_key_len > 0)
+ if (0 < sa_update->crypto_key_len || 0 < sa_update->integ_key_len)
{
- if (add_del_sa_sess (sa_index, 0) < 0)
+ err = ipsec_call_add_del_callbacks (im, sa, sa_index, 0);
+ if (err)
return VNET_API_ERROR_SYSCALL_ERROR_1;
}
RAND_seed ((const void *) &seed_data, sizeof (seed_data));
}
+static clib_error_t *
+ipsec_check_support (ipsec_sa_t * sa)
+{
+ if (sa->crypto_alg == IPSEC_CRYPTO_ALG_AES_GCM_128)
+ return clib_error_return (0, "unsupported aes-gcm-128 crypto-alg");
+ if (sa->integ_alg == IPSEC_INTEG_ALG_NONE)
+ return clib_error_return (0, "unsupported none integ-alg");
+
+ return 0;
+}
+
+clib_error_t *
+ipsec_add_del_sa_sess_cb (ipsec_main_t * im, u32 sa_index, u8 is_add)
+{
+ ipsec_ah_backend_t *ah =
+ pool_elt_at_index (im->ah_backends, im->ah_current_backend);
+ if (ah->add_del_sa_sess_cb)
+ {
+ clib_error_t *err = ah->add_del_sa_sess_cb (sa_index, is_add);
+ if (err)
+ return err;
+ }
+ ipsec_esp_backend_t *esp =
+ pool_elt_at_index (im->esp_backends, im->esp_current_backend);
+ if (esp->add_del_sa_sess_cb)
+ {
+ clib_error_t *err = esp->add_del_sa_sess_cb (sa_index, is_add);
+ if (err)
+ return err;
+ }
+ return 0;
+}
+
+clib_error_t *
+ipsec_check_support_cb (ipsec_main_t * im, ipsec_sa_t * sa)
+{
+ clib_error_t *error = 0;
+ ipsec_ah_backend_t *ah =
+ pool_elt_at_index (im->ah_backends, im->ah_current_backend);
+ ASSERT (ah->check_support_cb);
+ error = ah->check_support_cb (sa);
+ if (error)
+ return error;
+ ipsec_esp_backend_t *esp =
+ pool_elt_at_index (im->esp_backends, im->esp_current_backend);
+ ASSERT (esp->check_support_cb);
+ error = esp->check_support_cb (sa);
+ return error;
+}
+
+
+static void
+ipsec_add_node (vlib_main_t * vm, const char *node_name,
+ const char *prev_node_name, u32 * out_node_index,
+ u32 * out_next_index)
+{
+ vlib_node_t *prev_node, *node;
+ prev_node = vlib_get_node_by_name (vm, (u8 *) prev_node_name);
+ ASSERT (prev_node);
+ node = vlib_get_node_by_name (vm, (u8 *) node_name);
+ ASSERT (node);
+ *out_node_index = node->index;
+ *out_next_index = vlib_node_add_next (vm, prev_node->index, node->index);
+}
+
+u32
+ipsec_register_ah_backend (vlib_main_t * vm, ipsec_main_t * im,
+ const char *name,
+ const char *ah4_encrypt_node_name,
+ const char *ah4_decrypt_node_name,
+ const char *ah6_encrypt_node_name,
+ const char *ah6_decrypt_node_name,
+ check_support_cb_t ah_check_support_cb,
+ add_del_sa_sess_cb_t ah_add_del_sa_sess_cb)
+{
+ ipsec_ah_backend_t *b;
+ pool_get (im->ah_backends, b);
+ b->name = format (NULL, "%s", name);
+
+ ipsec_add_node (vm, ah4_encrypt_node_name, "ipsec4-output",
+ &b->ah4_encrypt_node_index, &b->ah4_encrypt_next_index);
+ ipsec_add_node (vm, ah4_decrypt_node_name, "ipsec4-input",
+ &b->ah4_decrypt_node_index, &b->ah4_decrypt_next_index);
+ ipsec_add_node (vm, ah6_encrypt_node_name, "ipsec6-output",
+ &b->ah6_encrypt_node_index, &b->ah6_encrypt_next_index);
+ ipsec_add_node (vm, ah6_decrypt_node_name, "ipsec6-input",
+ &b->ah6_decrypt_node_index, &b->ah6_decrypt_next_index);
+
+ b->check_support_cb = ah_check_support_cb;
+ b->add_del_sa_sess_cb = ah_add_del_sa_sess_cb;
+ return b - im->ah_backends;
+}
+
+u32
+ipsec_register_esp_backend (vlib_main_t * vm, ipsec_main_t * im,
+ const char *name,
+ const char *esp4_encrypt_node_name,
+ const char *esp4_decrypt_node_name,
+ const char *esp6_encrypt_node_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 (NULL, "%s", name);
+
+ ipsec_add_node (vm, esp4_encrypt_node_name, "ipsec4-output",
+ &b->esp4_encrypt_node_index, &b->esp4_encrypt_next_index);
+ ipsec_add_node (vm, esp4_decrypt_node_name, "ipsec4-input",
+ &b->esp4_decrypt_node_index, &b->esp4_decrypt_next_index);
+ ipsec_add_node (vm, esp6_encrypt_node_name, "ipsec6-output",
+ &b->esp6_encrypt_node_index, &b->esp6_encrypt_next_index);
+ ipsec_add_node (vm, esp6_decrypt_node_name, "ipsec6-input",
+ &b->esp6_decrypt_node_index, &b->esp6_decrypt_next_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;
+}
+
+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;
+ }
+ 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->ah4_decrypt_node_index = b->ah4_decrypt_node_index;
+ im->ah4_encrypt_next_index = b->ah4_encrypt_next_index;
+ im->ah4_decrypt_next_index = b->ah4_decrypt_next_index;
+ im->ah6_encrypt_node_index = b->ah6_encrypt_node_index;
+ im->ah6_decrypt_node_index = b->ah6_decrypt_node_index;
+ im->ah6_encrypt_next_index = b->ah6_encrypt_next_index;
+ im->ah6_decrypt_next_index = b->ah6_decrypt_next_index;
+ 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;
+ }
+ 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->esp4_decrypt_node_index = b->esp4_decrypt_node_index;
+ im->esp4_encrypt_next_index = b->esp4_encrypt_next_index;
+ im->esp4_decrypt_next_index = b->esp4_decrypt_next_index;
+ im->esp6_encrypt_node_index = b->esp6_encrypt_node_index;
+ im->esp6_decrypt_node_index = b->esp6_decrypt_node_index;
+ im->esp6_encrypt_next_index = b->esp6_encrypt_next_index;
+ im->esp6_decrypt_next_index = b->esp6_decrypt_next_index;
+ return 0;
+}
+
static clib_error_t *
ipsec_init (vlib_main_t * vm)
{
clib_error_t *error;
ipsec_main_t *im = &ipsec_main;
vlib_thread_main_t *tm = vlib_get_thread_main ();
- vlib_node_t *node;
ipsec_rand_seed ();
- memset (im, 0, sizeof (im[0]));
+ clib_memset (im, 0, sizeof (im[0]));
im->vnet_main = vnet_get_main ();
im->vlib_main = vm;
vec_validate_aligned (im->empty_buffers, tm->n_vlib_mains - 1,
CLIB_CACHE_LINE_BYTES);
- node = vlib_get_node_by_name (vm, (u8 *) "error-drop");
+ vlib_node_t *node = vlib_get_node_by_name (vm, (u8 *) "error-drop");
ASSERT (node);
im->error_drop_node_index = node->index;
- node = vlib_get_node_by_name (vm, (u8 *) ESP_NODE);
-
- ASSERT (node);
- im->esp_encrypt_node_index = node->index;
-
- node = vlib_get_node_by_name (vm, (u8 *) "ip4-lookup");
- ASSERT (node);
- im->ip4_lookup_node_index = node->index;
+ u32 idx = ipsec_register_ah_backend (vm, im, "default openssl backend",
+ "ah4-encrypt",
+ "ah4-decrypt",
+ "ah6-encrypt",
+ "ah6-decrypt",
+ ipsec_check_support,
+ NULL);
+
+ im->ah_default_backend = idx;
+ int rv = ipsec_select_ah_backend (im, idx);
+ ASSERT (0 == rv);
+ (void) (rv); // avoid warning
+
+ idx = ipsec_register_esp_backend (vm, im, "default openssl backend",
+ "esp4-encrypt",
+ "esp4-decrypt",
+ "esp6-encrypt",
+ "esp6-decrypt",
+ ipsec_check_support, NULL);
+ im->esp_default_backend = idx;
+
+ rv = ipsec_select_esp_backend (im, idx);
+ ASSERT (0 == rv);
+ (void) (rv); // avoid warning
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;
- esp_init ();
+ ipsec_proto_init ();
if ((error = ikev2_init (vm)))
return error;
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