#include <vnet/vnet.h>
#include <vnet/api_errno.h>
#include <vnet/ip/ip.h>
+#include <vnet/fib/fib.h>
+#include <vnet/udp/udp.h>
#include <vnet/ipsec/ipsec.h>
#include <vnet/ipsec/esp.h>
format_ipsec_name (u8 * s, va_list * args)
{
u32 dev_instance = va_arg (*args, u32);
- return format (s, "ipsec%d", dev_instance);
+ ipsec_main_t *im = &ipsec_main;
+ ipsec_tunnel_if_t *t = im->tunnel_interfaces + dev_instance;
+
+ return format (s, "ipsec%d", t->show_instance);
+}
+
+/* Statistics (not really errors) */
+#define foreach_ipsec_if_tx_error \
+_(TX, "good packets transmitted")
+
+static char *ipsec_if_tx_error_strings[] = {
+#define _(sym,string) string,
+ foreach_ipsec_if_tx_error
+#undef _
+};
+
+typedef enum
+{
+#define _(sym,str) IPSEC_IF_OUTPUT_ERROR_##sym,
+ foreach_ipsec_if_tx_error
+#undef _
+ IPSEC_IF_TX_N_ERROR,
+} ipsec_if_tx_error_t;
+
+typedef struct
+{
+ u32 spi;
+ u32 seq;
+} ipsec_if_tx_trace_t;
+
+u8 *
+format_ipsec_if_tx_trace (u8 * s, va_list * args)
+{
+ CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
+ CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
+ ipsec_if_tx_trace_t *t = va_arg (*args, ipsec_if_tx_trace_t *);
+
+ s = format (s, "IPSec: spi %u seq %u", t->spi, t->seq);
+ return s;
}
-static uword
-dummy_interface_tx (vlib_main_t * vm,
- vlib_node_runtime_t * node, vlib_frame_t * frame)
+static void
+ipsec_output_trace (vlib_main_t * vm,
+ vlib_node_runtime_t * node,
+ vlib_frame_t * frame, const ipsec_tunnel_if_t * t0)
{
- clib_warning ("you shouldn't be here, leaking buffers...");
+ ipsec_main_t *im = &ipsec_main;
+ u32 *from, n_left;
+
+ n_left = frame->n_vectors;
+ from = vlib_frame_vector_args (frame);
+
+ while (n_left > 0)
+ {
+ vlib_buffer_t *b0;
+
+ b0 = vlib_get_buffer (vm, from[0]);
+
+ if (b0->flags & VLIB_BUFFER_IS_TRACED)
+ {
+ ipsec_if_tx_trace_t *tr =
+ vlib_add_trace (vm, node, b0, sizeof (*tr));
+ ipsec_sa_t *sa0 = pool_elt_at_index (im->sad, t0->output_sa_index);
+ tr->spi = sa0->spi;
+ tr->seq = sa0->seq;
+ }
+
+ from += 1;
+ n_left -= 1;
+ }
+}
+
+VNET_DEVICE_CLASS_TX_FN (ipsec_device_class) (vlib_main_t * vm,
+ vlib_node_runtime_t * node,
+ vlib_frame_t * frame)
+{
+ ipsec_main_t *im = &ipsec_main;
+ u32 *from, n_left;
+ vnet_interface_output_runtime_t *rd = (void *) node->runtime_data;
+ const ipsec_tunnel_if_t *t0;
+ vlib_buffer_t *bufs[VLIB_FRAME_SIZE], **b;
+ u16 nexts[VLIB_FRAME_SIZE];
+
+ from = vlib_frame_vector_args (frame);
+ t0 = pool_elt_at_index (im->tunnel_interfaces, rd->dev_instance);
+ n_left = frame->n_vectors;
+ b = bufs;
+
+ /* All going to encrypt */
+ clib_memset (nexts, 0, sizeof (nexts));
+
+ if (node->flags & VLIB_NODE_FLAG_TRACE)
+ ipsec_output_trace (vm, node, frame, t0);
+
+ vlib_get_buffers (vm, from, bufs, n_left);
+
+ while (n_left >= 8)
+ {
+ /* Prefetch the buffer header for the N+2 loop iteration */
+ vlib_prefetch_buffer_header (b[4], STORE);
+ vlib_prefetch_buffer_header (b[5], STORE);
+ vlib_prefetch_buffer_header (b[6], STORE);
+ vlib_prefetch_buffer_header (b[7], STORE);
+
+ vnet_buffer (b[0])->ipsec.sad_index = t0->output_sa_index;
+ vnet_buffer (b[1])->ipsec.sad_index = t0->output_sa_index;
+ vnet_buffer (b[2])->ipsec.sad_index = t0->output_sa_index;
+ vnet_buffer (b[3])->ipsec.sad_index = t0->output_sa_index;
+
+ n_left -= 4;
+ b += 4;
+ }
+ while (n_left > 0)
+ {
+ vnet_buffer (b[0])->ipsec.sad_index = t0->output_sa_index;
+
+ n_left -= 1;
+ b += 1;
+ }
+
+ vlib_buffer_enqueue_to_next (vm, node, from, nexts, frame->n_vectors);
+
return frame->n_vectors;
}
+
static clib_error_t *
ipsec_admin_up_down_function (vnet_main_t * vnm, u32 hw_if_index, u32 flags)
{
ipsec_sa_t *sa;
hi = vnet_get_hw_interface (vnm, hw_if_index);
+ t = pool_elt_at_index (im->tunnel_interfaces, hi->hw_instance);
+ t->flags = flags;
+
if (flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP)
{
- t = pool_elt_at_index (im->tunnel_interfaces, hi->hw_instance);
- ASSERT (im->cb.check_support_cb);
sa = pool_elt_at_index (im->sad, t->input_sa_index);
- err = im->cb.check_support_cb (sa);
+
+ err = ipsec_check_support_cb (im, sa);
+ if (err)
+ return err;
+
+ err = ipsec_add_del_sa_sess_cb (im, t->input_sa_index, 1);
if (err)
return err;
sa = pool_elt_at_index (im->sad, t->output_sa_index);
- err = im->cb.check_support_cb (sa);
+
+ err = ipsec_check_support_cb (im, sa);
+ if (err)
+ return err;
+
+ err = ipsec_add_del_sa_sess_cb (im, t->output_sa_index, 1);
if (err)
return err;
VNET_HW_INTERFACE_FLAG_LINK_UP);
}
else
- vnet_hw_interface_set_flags (vnm, hw_if_index, 0 /* down */ );
+ {
+ vnet_hw_interface_set_flags (vnm, hw_if_index, 0 /* down */ );
+ sa = pool_elt_at_index (im->sad, t->input_sa_index);
+ err = ipsec_add_del_sa_sess_cb (im, t->input_sa_index, 0);
+ if (err)
+ return err;
+ sa = pool_elt_at_index (im->sad, t->output_sa_index);
+ err = ipsec_add_del_sa_sess_cb (im, t->output_sa_index, 0);
+ if (err)
+ return err;
+ }
return /* no error */ 0;
}
+
/* *INDENT-OFF* */
-VNET_DEVICE_CLASS (ipsec_device_class, static) =
+VNET_DEVICE_CLASS (ipsec_device_class) =
{
.name = "IPSec",
.format_device_name = format_ipsec_name,
- .format_tx_trace = format_ipsec_if_output_trace,
- .tx_function = dummy_interface_tx,
+ .format_tx_trace = format_ipsec_if_tx_trace,
+ .tx_function_n_errors = IPSEC_IF_TX_N_ERROR,
+ .tx_function_error_strings = ipsec_if_tx_error_strings,
.admin_up_down_function = ipsec_admin_up_down_function,
};
/* *INDENT-ON* */
{
.name = "IPSec",
.build_rewrite = default_build_rewrite,
+ .flags = VNET_HW_INTERFACE_CLASS_FLAG_P2P,
};
/* *INDENT-ON* */
return 0;
}
+static u32
+ipsec_tun_mk_input_sa_id (u32 ti)
+{
+ return (0x80000000 | ti);
+}
+
+static u32
+ipsec_tun_mk_output_sa_id (u32 ti)
+{
+ return (0xc0000000 | ti);
+}
+
int
ipsec_add_del_tunnel_if_internal (vnet_main_t * vnm,
ipsec_add_del_tunnel_args_t * args,
vnet_hw_interface_t *hi = NULL;
u32 hw_if_index = ~0;
uword *p;
- ipsec_sa_t *sa;
-
- u64 key = (u64) args->remote_ip.as_u32 << 32 | (u64) args->remote_spi;
+ u32 dev_instance;
+ u32 slot;
+ ipsec_key_t crypto_key, integ_key;
+ ipsec_sa_flags_t flags;
+ int rv;
+
+ u64 key = ((u64) args->remote_ip.ip4.as_u32 << 32 |
+ (u64) clib_host_to_net_u32 (args->remote_spi));
p = hash_get (im->ipsec_if_pool_index_by_key, key);
if (args->is_add)
if (p)
return VNET_API_ERROR_INVALID_VALUE;
- pool_get_aligned (im->tunnel_interfaces, t, CLIB_CACHE_LINE_BYTES);
- memset (t, 0, sizeof (*t));
-
- pool_get (im->sad, sa);
- memset (sa, 0, sizeof (*sa));
- t->input_sa_index = sa - im->sad;
- sa->spi = args->remote_spi;
- sa->tunnel_src_addr.ip4.as_u32 = args->remote_ip.as_u32;
- sa->tunnel_dst_addr.ip4.as_u32 = args->local_ip.as_u32;
- sa->is_tunnel = 1;
- sa->use_esn = args->esn;
- sa->use_anti_replay = args->anti_replay;
- sa->integ_alg = args->integ_alg;
- if (args->remote_integ_key_len <= sizeof (args->remote_integ_key))
- {
- sa->integ_key_len = args->remote_integ_key_len;
- clib_memcpy (sa->integ_key, args->remote_integ_key,
- args->remote_integ_key_len);
- }
- sa->crypto_alg = args->crypto_alg;
- if (args->remote_crypto_key_len <= sizeof (args->remote_crypto_key))
- {
- sa->crypto_key_len = args->remote_crypto_key_len;
- clib_memcpy (sa->crypto_key, args->remote_crypto_key,
- args->remote_crypto_key_len);
- }
+ pool_get_aligned_zero (im->tunnel_interfaces, t, CLIB_CACHE_LINE_BYTES);
- if (im->cb.add_del_sa_sess_cb &&
- im->cb.add_del_sa_sess_cb (t->input_sa_index, args->is_add) < 0)
- return VNET_API_ERROR_SYSCALL_ERROR_1;
-
- pool_get (im->sad, sa);
- memset (sa, 0, sizeof (*sa));
- t->output_sa_index = sa - im->sad;
- sa->spi = args->local_spi;
- sa->tunnel_src_addr.ip4.as_u32 = args->local_ip.as_u32;
- sa->tunnel_dst_addr.ip4.as_u32 = args->remote_ip.as_u32;
- sa->is_tunnel = 1;
- sa->seq = 1;
- sa->use_esn = args->esn;
- sa->use_anti_replay = args->anti_replay;
- sa->integ_alg = args->integ_alg;
- if (args->local_integ_key_len <= sizeof (args->local_integ_key))
- {
- sa->integ_key_len = args->local_integ_key_len;
- clib_memcpy (sa->integ_key, args->local_integ_key,
- args->local_integ_key_len);
- }
- sa->crypto_alg = args->crypto_alg;
- if (args->local_crypto_key_len <= sizeof (args->local_crypto_key))
+ dev_instance = t - im->tunnel_interfaces;
+ if (args->renumber)
+ t->show_instance = args->show_instance;
+ else
+ t->show_instance = dev_instance;
+
+ if (hash_get (im->ipsec_if_real_dev_by_show_dev, t->show_instance))
{
- sa->crypto_key_len = args->local_crypto_key_len;
- clib_memcpy (sa->crypto_key, args->local_crypto_key,
- args->local_crypto_key_len);
+ pool_put (im->tunnel_interfaces, t);
+ return VNET_API_ERROR_INSTANCE_IN_USE;
}
- if (im->cb.add_del_sa_sess_cb &&
- im->cb.add_del_sa_sess_cb (t->output_sa_index, args->is_add) < 0)
- return VNET_API_ERROR_SYSCALL_ERROR_1;
+ hash_set (im->ipsec_if_real_dev_by_show_dev, t->show_instance,
+ dev_instance);
+
+ flags = IPSEC_SA_FLAG_IS_TUNNEL;
+ if (args->udp_encap)
+ flags |= IPSEC_SA_FLAG_UDP_ENCAP;
+ if (args->esn)
+ flags |= IPSEC_SA_FLAG_USE_EXTENDED_SEQ_NUM;
+ if (args->anti_replay)
+ flags |= IPSEC_SA_FLAG_USE_ANTI_REPLAY;
+
+ ipsec_mk_key (&crypto_key,
+ args->remote_crypto_key, args->remote_crypto_key_len);
+ ipsec_mk_key (&integ_key,
+ args->remote_integ_key, args->remote_integ_key_len);
+
+ rv = ipsec_sa_add (ipsec_tun_mk_input_sa_id (dev_instance),
+ args->remote_spi,
+ IPSEC_PROTOCOL_ESP,
+ args->crypto_alg,
+ &crypto_key,
+ args->integ_alg,
+ &integ_key,
+ flags,
+ args->tx_table_id,
+ &args->remote_ip,
+ &args->local_ip, &t->input_sa_index);
+
+ if (rv)
+ return VNET_API_ERROR_UNIMPLEMENTED;
+
+ ipsec_mk_key (&crypto_key,
+ args->local_crypto_key, args->local_crypto_key_len);
+ ipsec_mk_key (&integ_key,
+ args->local_integ_key, args->local_integ_key_len);
+
+ rv = ipsec_sa_add (ipsec_tun_mk_output_sa_id (dev_instance),
+ args->local_spi,
+ IPSEC_PROTOCOL_ESP,
+ args->crypto_alg,
+ &crypto_key,
+ args->integ_alg,
+ &integ_key,
+ flags,
+ args->tx_table_id,
+ &args->local_ip,
+ &args->remote_ip, &t->output_sa_index);
+
+ if (rv)
+ return VNET_API_ERROR_UNIMPLEMENTED;
hash_set (im->ipsec_if_pool_index_by_key, key,
t - im->tunnel_interfaces);
- if (vec_len (im->free_tunnel_if_indices) > 0)
- {
- hw_if_index =
- im->free_tunnel_if_indices[vec_len (im->free_tunnel_if_indices) -
- 1];
- _vec_len (im->free_tunnel_if_indices) -= 1;
- }
- else
- {
- hw_if_index =
- vnet_register_interface (vnm, ipsec_device_class.index,
- t - im->tunnel_interfaces,
- ipsec_hw_class.index,
- t - im->tunnel_interfaces);
- }
+ hw_if_index = vnet_register_interface (vnm, ipsec_device_class.index,
+ t - im->tunnel_interfaces,
+ ipsec_hw_class.index,
+ t - im->tunnel_interfaces);
hi = vnet_get_hw_interface (vnm, hw_if_index);
- hi->output_node_index = ipsec_if_output_node.index;
+ /* add esp4 as the next-node-index of this tx-node */
+
+ slot = vlib_node_add_next_with_slot
+ (vnm->vlib_main, hi->tx_node_index, im->esp4_encrypt_node_index, 0);
+
+ ASSERT (slot == 0);
+
t->hw_if_index = hw_if_index;
+ t->sw_if_index = hi->sw_if_index;
+
+ vnet_feature_enable_disable ("interface-output", "ipsec-if-output",
+ hi->sw_if_index, 1, 0, 0);
/*1st interface, register protocol */
if (pool_elts (im->tunnel_interfaces) == 1)
}
else
{
- vnet_interface_main_t *vim = &vnm->interface_main;
-
/* check if exists */
if (!p)
return VNET_API_ERROR_INVALID_VALUE;
t = pool_elt_at_index (im->tunnel_interfaces, p[0]);
hi = vnet_get_hw_interface (vnm, t->hw_if_index);
vnet_sw_interface_set_flags (vnm, hi->sw_if_index, 0); /* admin down */
- vec_add1 (im->free_tunnel_if_indices, t->hw_if_index);
- vnet_interface_counter_lock (vim);
- vlib_zero_combined_counter (vim->combined_sw_if_counters +
- VNET_INTERFACE_COUNTER_TX, hi->sw_if_index);
- vlib_zero_combined_counter (vim->combined_sw_if_counters +
- VNET_INTERFACE_COUNTER_RX, hi->sw_if_index);
- vnet_interface_counter_unlock (vim);
+ vnet_feature_enable_disable ("interface-output", "ipsec-if-output",
+ hi->sw_if_index, 0, 0, 0);
- /* delete input and output SA */
- sa = pool_elt_at_index (im->sad, t->input_sa_index);
-
- if (im->cb.add_del_sa_sess_cb &&
- im->cb.add_del_sa_sess_cb (t->input_sa_index, args->is_add) < 0)
- return VNET_API_ERROR_SYSCALL_ERROR_1;
-
- pool_put (im->sad, sa);
-
- sa = pool_elt_at_index (im->sad, t->output_sa_index);
-
- if (im->cb.add_del_sa_sess_cb &&
- im->cb.add_del_sa_sess_cb (t->output_sa_index, args->is_add) < 0)
- return VNET_API_ERROR_SYSCALL_ERROR_1;
-
- pool_put (im->sad, sa);
+ vnet_delete_hw_interface (vnm, t->hw_if_index);
hash_unset (im->ipsec_if_pool_index_by_key, key);
+ hash_unset (im->ipsec_if_real_dev_by_show_dev, t->show_instance);
+
pool_put (im->tunnel_interfaces, t);
+
+ /* delete input and output SA */
+ ipsec_sa_del (ipsec_tun_mk_input_sa_id (p[0]));
+ ipsec_sa_del (ipsec_tun_mk_output_sa_id (p[0]));
}
if (sw_if_index)
sa = pool_elt_at_index (im->sad, p[0]);
if (sa->is_tunnel)
- key = (u64) sa->tunnel_dst_addr.ip4.as_u32 << 32 | (u64) sa->spi;
+ key = ((u64) sa->tunnel_dst_addr.ip4.as_u32 << 32 |
+ (u64) clib_host_to_net_u32 (sa->spi));
else
- key = (u64) args->remote_ip.as_u32 << 32 | (u64) sa->spi;
+ key = ((u64) args->remote_ip.as_u32 << 32 |
+ (u64) clib_host_to_net_u32 (sa->spi));
p = hash_get (im->ipsec_if_pool_index_by_key, key);
return VNET_API_ERROR_INVALID_VALUE;
pool_get_aligned (im->tunnel_interfaces, t, CLIB_CACHE_LINE_BYTES);
- memset (t, 0, sizeof (*t));
+ clib_memset (t, 0, sizeof (*t));
t->input_sa_index = isa;
t->output_sa_index = osa;
hi = vnet_get_hw_interface (vnm, hw_if_index);
t = pool_elt_at_index (im->tunnel_interfaces, hi->dev_instance);
+ if (hi->flags & VNET_HW_INTERFACE_FLAG_LINK_UP)
+ return VNET_API_ERROR_SYSCALL_ERROR_1;
+
if (type == IPSEC_IF_SET_KEY_TYPE_LOCAL_CRYPTO)
{
sa = pool_elt_at_index (im->sad, t->output_sa_index);
sa->crypto_alg = alg;
- sa->crypto_key_len = vec_len (key);
- clib_memcpy (sa->crypto_key, key, vec_len (key));
-
- if (im->cb.add_del_sa_sess_cb &&
- im->cb.add_del_sa_sess_cb (t->output_sa_index, 0) < 0)
- return VNET_API_ERROR_SYSCALL_ERROR_1;
+ ipsec_mk_key (&sa->crypto_key, key, vec_len (key));
}
else if (type == IPSEC_IF_SET_KEY_TYPE_LOCAL_INTEG)
{
sa = pool_elt_at_index (im->sad, t->output_sa_index);
sa->integ_alg = alg;
- sa->integ_key_len = vec_len (key);
- clib_memcpy (sa->integ_key, key, vec_len (key));
-
- if (im->cb.add_del_sa_sess_cb &&
- im->cb.add_del_sa_sess_cb (t->output_sa_index, 0) < 0)
- return VNET_API_ERROR_SYSCALL_ERROR_1;
+ ipsec_mk_key (&sa->integ_key, key, vec_len (key));
}
else if (type == IPSEC_IF_SET_KEY_TYPE_REMOTE_CRYPTO)
{
sa = pool_elt_at_index (im->sad, t->input_sa_index);
sa->crypto_alg = alg;
- sa->crypto_key_len = vec_len (key);
- clib_memcpy (sa->crypto_key, key, vec_len (key));
-
- if (im->cb.add_del_sa_sess_cb &&
- im->cb.add_del_sa_sess_cb (t->input_sa_index, 0) < 0)
- return VNET_API_ERROR_SYSCALL_ERROR_1;
+ ipsec_mk_key (&sa->crypto_key, key, vec_len (key));
}
else if (type == IPSEC_IF_SET_KEY_TYPE_REMOTE_INTEG)
{
sa = pool_elt_at_index (im->sad, t->input_sa_index);
sa->integ_alg = alg;
- sa->integ_key_len = vec_len (key);
- clib_memcpy (sa->integ_key, key, vec_len (key));
-
- if (im->cb.add_del_sa_sess_cb &&
- im->cb.add_del_sa_sess_cb (t->input_sa_index, 0) < 0)
- return VNET_API_ERROR_SYSCALL_ERROR_1;
+ ipsec_mk_key (&sa->integ_key, key, vec_len (key));
}
else
return VNET_API_ERROR_INVALID_VALUE;
}
+int
+ipsec_set_interface_sa (vnet_main_t * vnm, u32 hw_if_index, u32 sa_id,
+ u8 is_outbound)
+{
+ ipsec_main_t *im = &ipsec_main;
+ vnet_hw_interface_t *hi;
+ ipsec_tunnel_if_t *t;
+ ipsec_sa_t *sa, *old_sa;
+ u32 sa_index, old_sa_index;
+ uword *p;
+
+ hi = vnet_get_hw_interface (vnm, hw_if_index);
+ t = pool_elt_at_index (im->tunnel_interfaces, hi->dev_instance);
+
+ sa_index = ipsec_get_sa_index_by_sa_id (sa_id);
+ if (sa_index == ~0)
+ {
+ clib_warning ("SA with ID %u not found", sa_id);
+ return VNET_API_ERROR_INVALID_VALUE;
+ }
+
+ if (ipsec_is_sa_used (sa_index))
+ {
+ clib_warning ("SA with ID %u is already in use", sa_id);
+ return VNET_API_ERROR_INVALID_VALUE;
+ }
+
+ sa = pool_elt_at_index (im->sad, sa_index);
+ if (sa->is_tunnel_ip6)
+ {
+ clib_warning ("IPsec interface not supported with IPv6 endpoints");
+ return VNET_API_ERROR_UNIMPLEMENTED;
+ }
+
+ if (!is_outbound)
+ {
+ u64 key;
+
+ old_sa_index = t->input_sa_index;
+ old_sa = pool_elt_at_index (im->sad, old_sa_index);
+
+ /* unset old inbound hash entry. packets should stop arriving */
+ key = ((u64) old_sa->tunnel_src_addr.ip4.as_u32 << 32 |
+ (u64) clib_host_to_net_u32 (old_sa->spi));
+ p = hash_get (im->ipsec_if_pool_index_by_key, key);
+ if (p)
+ hash_unset (im->ipsec_if_pool_index_by_key, key);
+
+ /* set new inbound SA, then set new hash entry */
+ t->input_sa_index = sa_index;
+ key = ((u64) sa->tunnel_src_addr.ip4.as_u32 << 32 |
+ (u64) clib_host_to_net_u32 (sa->spi));
+ hash_set (im->ipsec_if_pool_index_by_key, key, hi->dev_instance);
+ }
+ else
+ {
+ old_sa_index = t->output_sa_index;
+ old_sa = pool_elt_at_index (im->sad, old_sa_index);
+ t->output_sa_index = sa_index;
+ }
+
+ /* remove sa_id to sa_index mapping on old SA */
+ if (ipsec_get_sa_index_by_sa_id (old_sa->id) == old_sa_index)
+ hash_unset (im->sa_index_by_sa_id, old_sa->id);
+
+ if (ipsec_add_del_sa_sess_cb (im, old_sa_index, 0))
+ {
+ clib_warning ("IPsec backend add/del callback returned error");
+ return VNET_API_ERROR_SYSCALL_ERROR_1;
+ }
+ pool_put (im->sad, old_sa);
+
+ return 0;
+}
+
clib_error_t *
ipsec_tunnel_if_init (vlib_main_t * vm)
{
ipsec_main_t *im = &ipsec_main;
im->ipsec_if_pool_index_by_key = hash_create (0, sizeof (uword));
+ im->ipsec_if_real_dev_by_show_dev = hash_create (0, sizeof (uword));
+
+ udp_register_dst_port (vm, UDP_DST_PORT_ipsec, ipsec_if_input_node.index,
+ 1);
return 0;
}