#include <plugins/ikev2/ikev2_priv.h>
#include <openssl/sha.h>
-#define IKEV2_LIVENESS_RETRIES 2
+#define IKEV2_LIVENESS_RETRIES 3
#define IKEV2_LIVENESS_PERIOD_CHECK 30
ikev2_main_t ikev2_main;
ikev2_sa_transform_t *t = 0, *t2;
ikev2_main_t *km = &ikev2_main;
- sai->init_response_received = 1;
-
/*move some data to the new SA */
#define _(A) ({void* __tmp__ = (A); (A) = 0; __tmp__;})
sa->i_nonce = _(sai->i_nonce);
IPSEC_PROTOCOL_ESP, a->encr_type,
&a->loc_ckey, a->integ_type, &a->loc_ikey,
a->flags, 0, a->salt_local, &a->local_ip,
- &a->remote_ip, NULL, a->dst_port);
+ &a->remote_ip, NULL, a->dst_port, a->dst_port);
rv |= ipsec_sa_add_and_lock (a->remote_sa_id, a->remote_spi,
IPSEC_PROTOCOL_ESP, a->encr_type, &a->rem_ckey,
a->integ_type, &a->rem_ikey,
(a->flags | IPSEC_SA_FLAG_IS_INBOUND), 0,
a->salt_remote, &a->remote_ip,
- &a->local_ip, NULL, a->dst_port);
+ &a->local_ip, NULL, a->dst_port, a->dst_port);
rv |= ipsec_tun_protect_update (sw_if_index, NULL, a->local_sa_id, sas_in);
}
static int
-ikev2_create_tunnel_interface (vnet_main_t * vnm,
+ikev2_create_tunnel_interface (vlib_main_t * vm,
u32 thread_index,
ikev2_sa_t * sa,
ikev2_child_sa_t * child, u32 sa_index,
if (p && p->lifetime)
{
- child->time_to_expiration =
- vlib_time_now (vnm->vlib_main) + p->lifetime;
+ child->time_to_expiration = vlib_time_now (vm) + p->lifetime;
if (p->lifetime_jitter)
{
// This is not much better than rand(3), which Coverity warns
// however fast. If this perturbance to the expiration time
// needs to use a better RNG then we may need to use something
// like /dev/urandom which has significant overhead.
- u32 rnd = (u32) (vlib_time_now (vnm->vlib_main) * 1e6);
+ u32 rnd = (u32) (vlib_time_now (vm) * 1e6);
rnd = random_u32 (&rnd);
child->time_to_expiration += 1 + (rnd % p->lifetime_jitter);
}
static void
-ikev2_init_sa (ikev2_sa_t * sa)
+ikev2_init_sa (vlib_main_t * vm, ikev2_sa_t * sa)
{
ikev2_main_t *km = &ikev2_main;
- sa->liveness_period_check =
- vlib_time_now (km->vlib_main) + IKEV2_LIVENESS_PERIOD_CHECK;
+ sa->liveness_period_check = vlib_time_now (vm) + km->liveness_period;
+}
+
+static void
+ikev2_del_sa_init_from_main (u64 * ispi)
+{
+ ikev2_main_t *km = &ikev2_main;
+ uword *p = hash_get (km->sa_by_ispi, *ispi);
+ if (p)
+ {
+ ikev2_sa_t *sai = pool_elt_at_index (km->sais, p[0]);
+ hash_unset (km->sa_by_ispi, sai->ispi);
+ ikev2_sa_free_all_vec (sai);
+ pool_put (km->sais, sai);
+ }
+}
+
+static void
+ikev2_del_sa_init (u64 ispi)
+{
+ vl_api_rpc_call_main_thread (ikev2_del_sa_init_from_main, (u8 *) & ispi,
+ sizeof (ispi));
}
static uword
pool_get (km->per_thread_data[thread_index].sas,
sa0);
clib_memcpy_fast (sa0, &sa, sizeof (*sa0));
- ikev2_init_sa (sa0);
+ ikev2_init_sa (vm, sa0);
hash_set (km->
per_thread_data[thread_index].sa_by_rspi,
sa0->rspi,
ikev2_sa_t *sai =
pool_elt_at_index (km->sais, p[0]);
- if (sai->init_response_received)
- {
- /* we've already processed sa-init response */
- sa0->state = IKEV2_STATE_UNKNOWN;
- }
- else
+ if (clib_atomic_bool_cmp_and_swap
+ (&sai->init_response_received, 0, 1))
{
ikev2_complete_sa_data (sa0, sai);
ikev2_calc_keys (sa0);
ikev2_sa_auth_init (sa0);
len = ikev2_generate_message (sa0, ike0, 0);
}
+ else
+ {
+ /* we've already processed sa-init response */
+ sa0->state = IKEV2_STATE_UNKNOWN;
+ }
}
}
ikev2_initial_contact_cleanup (sa0);
ikev2_sa_match_ts (sa0);
if (sa0->state != IKEV2_STATE_TS_UNACCEPTABLE)
- ikev2_create_tunnel_interface (km->vnet_main,
- thread_index, sa0,
+ ikev2_create_tunnel_interface (vm, thread_index, sa0,
&sa0->childs[0],
p[0], 0, 0);
}
if (sa0->is_initiator)
{
- uword *p = hash_get (km->sa_by_ispi, ike0->ispi);
- if (p)
- {
- ikev2_sa_t *sai =
- pool_elt_at_index (km->sais, p[0]);
- hash_unset (km->sa_by_ispi, sai->ispi);
- ikev2_sa_free_all_vec (sai);
- pool_put (km->sais, sai);
- }
+ ikev2_del_sa_init (ike0->ispi);
}
else
{
}
}
}
- len = ikev2_generate_message (sa0, ike0, 0);
+ if (!(ike0->flags & IKEV2_HDR_FLAG_RESPONSE))
+ {
+ ike0->flags |= IKEV2_HDR_FLAG_RESPONSE;
+ len = ikev2_generate_message (sa0, ike0, 0);
+ }
}
}
else if (ike0->exchange == IKEV2_EXCHANGE_CREATE_CHILD_SA)
child->i_proposals = sa0->rekey[0].i_proposal;
child->tsi = sa0->rekey[0].tsi;
child->tsr = sa0->rekey[0].tsr;
- ikev2_create_tunnel_interface (km->vnet_main,
- thread_index, sa0,
- child, p[0],
+ ikev2_create_tunnel_interface (vm, thread_index,
+ sa0, child, p[0],
child - sa0->childs,
1);
}
ikev2_sa_free_proposal_vector (&proposals);
sa.is_initiator = 1;
- sa.profile_index = km->profiles - p;
+ sa.profile_index = p - km->profiles;
sa.is_profile_index_set = 1;
sa.state = IKEV2_STATE_SA_INIT;
sa.tun_itf = p->tun_itf;
km->vnet_main = vnet_get_main ();
km->vlib_main = vm;
+ km->liveness_period = IKEV2_LIVENESS_PERIOD_CHECK;
+ km->liveness_max_retries = IKEV2_LIVENESS_RETRIES;
ikev2_crypto_init (km);
mhash_init_vec_string (&km->profile_index_by_name, sizeof (uword));
return 0;
}
+clib_error_t *
+ikev2_set_liveness_params (u32 period, u32 max_retries)
+{
+ ikev2_main_t *km = &ikev2_main;
+
+ if (period == 0 || max_retries == 0)
+ return clib_error_return (0, "invalid args");
+
+ km->liveness_period = period;
+ km->liveness_max_retries = max_retries;
+ return 0;
+}
+
static void
ikev2_mngr_process_ipsec_sa (ipsec_sa_t * ipsec_sa)
{
ikev2_main_t *km = &ikev2_main;
vlib_main_t *vm = km->vlib_main;
- if (sa->liveness_retries > IKEV2_LIVENESS_RETRIES)
+ if (!sa->sk_ai || !sa->sk_ar)
+ return 0;
+
+ if (sa->liveness_retries >= km->liveness_max_retries)
return 1;
f64 now = vlib_time_now (vm);
if (sa->liveness_period_check < now)
{
sa->liveness_retries++;
- sa->liveness_period_check = now + IKEV2_LIVENESS_PERIOD_CHECK;
+ sa->liveness_period_check = now + km->liveness_period;
ikev2_send_informational_request (sa);
}
return 0;
if (p)
{
ikev2_initiate_sa_init (vm, p->name);
- continue;
}
}
vec_foreach (c, sa->childs)
hash_unset (tkm->sa_by_rspi, sa->rspi);
pool_put (tkm->sas, sa);
}
+ vec_free (to_be_deleted);
}
/* process ipsec sas */
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