#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>
return s;
}
-always_inline ipsec_tunnel_if_t *
-ipsec_tun_get_by_sw_if_index (u32 sw_if_index)
+static void
+ipsec_output_trace (vlib_main_t * vm,
+ vlib_node_runtime_t * node,
+ vlib_frame_t * frame, const ipsec_tunnel_if_t * t0)
{
ipsec_main_t *im = &ipsec_main;
- u32 ti;
+ u32 *from, n_left;
- ti = im->ipsec_if_by_sw_if_index[sw_if_index];
+ n_left = frame->n_vectors;
+ from = vlib_frame_vector_args (frame);
- return (pool_elt_at_index (im->tunnel_interfaces, ti));
-}
-
-static uword
-ipsec_if_tx_node_fn (vlib_main_t * vm, vlib_node_runtime_t * node,
- vlib_frame_t * from_frame)
-{
- ipsec_main_t *im = &ipsec_main;
- vnet_main_t *vnm = im->vnet_main;
- vnet_interface_main_t *vim = &vnm->interface_main;
- u32 *from, *to_next = 0, next_index;
- u32 n_left_from, sw_if_index0, last_sw_if_index = ~0;
- u32 thread_index = vm->thread_index;
- u32 n_bytes = 0, n_packets = 0;
-
- from = vlib_frame_vector_args (from_frame);
- n_left_from = from_frame->n_vectors;
- next_index = node->cached_next_index;
-
- while (n_left_from > 0)
+ while (n_left > 0)
{
- u32 n_left_to_next;
+ vlib_buffer_t *b0;
- vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next);
+ b0 = vlib_get_buffer (vm, from[0]);
- while (n_left_from > 0 && n_left_to_next > 0)
+ if (b0->flags & VLIB_BUFFER_IS_TRACED)
{
- const ipsec_tunnel_if_t *t0;
- u32 bi0, next0, len0;
- vlib_buffer_t *b0;
-
- bi0 = to_next[0] = from[0];
- from += 1;
- n_left_from -= 1;
- to_next += 1;
- n_left_to_next -= 1;
- b0 = vlib_get_buffer (vm, bi0);
- sw_if_index0 = vnet_buffer (b0)->sw_if_index[VLIB_TX];
- t0 = ipsec_tun_get_by_sw_if_index (sw_if_index0);
- vnet_buffer (b0)->ipsec.sad_index = t0->output_sa_index;
-
- /* 0, tx-node next[0] was added by vlib_node_add_next_with_slot */
- next0 = 0;
-
- len0 = vlib_buffer_length_in_chain (vm, b0);
-
- if (PREDICT_TRUE (sw_if_index0 == last_sw_if_index))
- {
- n_packets++;
- n_bytes += len0;
- }
- else
- {
- vlib_increment_combined_counter (vim->combined_sw_if_counters +
- VNET_INTERFACE_COUNTER_TX,
- thread_index, sw_if_index0,
- n_packets, n_bytes);
- last_sw_if_index = sw_if_index0;
- n_packets = 1;
- n_bytes = len0;
- }
-
- if (PREDICT_FALSE (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;
- }
-
- vlib_validate_buffer_enqueue_x1 (vm, node, next_index, to_next,
- n_left_to_next, bi0, next0);
+ 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;
}
- vlib_put_next_frame (vm, node, next_index, n_left_to_next);
+
+ 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);
- if (last_sw_if_index != ~0)
+ 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)
{
- vlib_increment_combined_counter (vim->combined_sw_if_counters +
- VNET_INTERFACE_COUNTER_TX,
- thread_index,
- last_sw_if_index, n_packets, n_bytes);
+ vnet_buffer (b[0])->ipsec.sad_index = t0->output_sa_index;
+
+ n_left -= 1;
+ b += 1;
}
- return from_frame->n_vectors;
+ vlib_buffer_enqueue_to_next (vm, node, from, nexts, frame->n_vectors);
+
+ return frame->n_vectors;
}
/* *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_tx_trace,
- .tx_function = ipsec_if_tx_node_fn,
.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,
u32 hw_if_index = ~0;
uword *p;
u32 dev_instance;
- u32 slot;
ipsec_key_t crypto_key, integ_key;
ipsec_sa_flags_t flags;
int rv;
+ int is_ip6 = args->is_ip6;
+ ipsec4_tunnel_key_t key4;
+ ipsec6_tunnel_key_t key6;
- 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 (!is_ip6)
+ {
+ key4.remote_ip = args->remote_ip.ip4.as_u32;
+ key4.spi = clib_host_to_net_u32 (args->remote_spi);
+ p = hash_get (im->ipsec4_if_pool_index_by_key, key4.as_u64);
+ }
+ else
+ {
+ key6.remote_ip = args->remote_ip.ip6;
+ key6.spi = clib_host_to_net_u32 (args->remote_spi);
+ p = hash_get_mem (im->ipsec6_if_pool_index_by_key, &key6);
+ }
if (args->is_add)
{
dev_instance);
flags = IPSEC_SA_FLAG_IS_TUNNEL;
+ if (args->is_ip6)
+ flags |= IPSEC_SA_FLAG_IS_TUNNEL_V6;
if (args->udp_encap)
flags |= IPSEC_SA_FLAG_UDP_ENCAP;
if (args->esn)
&args->local_ip, &t->input_sa_index);
if (rv)
- return VNET_API_ERROR_UNIMPLEMENTED;
+ return VNET_API_ERROR_INVALID_SRC_ADDRESS;
ipsec_mk_key (&crypto_key,
args->local_crypto_key, args->local_crypto_key_len);
&args->remote_ip, &t->output_sa_index);
if (rv)
- return VNET_API_ERROR_UNIMPLEMENTED;
+ return VNET_API_ERROR_INVALID_DST_ADDRESS;
- hash_set (im->ipsec_if_pool_index_by_key, key,
- t - im->tunnel_interfaces);
+ /* copy the key */
+ if (is_ip6)
+ hash_set_mem_alloc (&im->ipsec6_if_pool_index_by_key, &key6,
+ t - im->tunnel_interfaces);
+ else
+ hash_set (im->ipsec4_if_pool_index_by_key, key4.as_u64,
+ t - im->tunnel_interfaces);
hw_if_index = vnet_register_interface (vnm, ipsec_device_class.index,
t - im->tunnel_interfaces,
t - im->tunnel_interfaces);
hi = vnet_get_hw_interface (vnm, hw_if_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);
+ /* add esp4/6 as the next-node-index of this tx-node */
+ uword slot = vlib_node_add_next_with_slot
+ (vnm->vlib_main, hi->tx_node_index,
+ is_ip6 ? im->esp6_encrypt_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;
- vec_validate_init_empty (im->ipsec_if_by_sw_if_index,
- t->sw_if_index, ~0);
- im->ipsec_if_by_sw_if_index[t->sw_if_index] = t - im->tunnel_interfaces;
-
- vnet_feature_enable_disable ("interface-output", "ipsec-if-output",
- hi->sw_if_index, 1, 0, 0);
-
+ vnet_feature_enable_disable ("interface-output",
+ args->is_ip6 ? "ipsec6-if-output" :
+ "ipsec4-if-output", hi->sw_if_index, 1, 0,
+ 0);
/*1st interface, register protocol */
if (pool_elts (im->tunnel_interfaces) == 1)
- ip4_register_protocol (IP_PROTOCOL_IPSEC_ESP,
- ipsec_if_input_node.index);
+ {
+ ip4_register_protocol (IP_PROTOCOL_IPSEC_ESP,
+ ipsec4_if_input_node.index);
+ ip6_register_protocol (IP_PROTOCOL_IPSEC_ESP,
+ ipsec6_if_input_node.index);
+ }
}
else
{
+ u32 ti;
+
/* check if exists */
if (!p)
return VNET_API_ERROR_INVALID_VALUE;
- t = pool_elt_at_index (im->tunnel_interfaces, p[0]);
+ ti = p[0];
+ t = pool_elt_at_index (im->tunnel_interfaces, ti);
hi = vnet_get_hw_interface (vnm, t->hw_if_index);
vnet_sw_interface_set_flags (vnm, hi->sw_if_index, 0); /* admin down */
- vnet_feature_enable_disable ("interface-output", "ipsec-if-output",
- hi->sw_if_index, 0, 0, 0);
-
+ vnet_feature_enable_disable ("interface-output",
+ args->is_ip6 ? "ipsec6-if-output" :
+ "ipsec4-if-output", hi->sw_if_index, 0, 0,
+ 0);
vnet_delete_hw_interface (vnm, t->hw_if_index);
- hash_unset (im->ipsec_if_pool_index_by_key, key);
+ if (is_ip6)
+ hash_unset_mem_free (&im->ipsec6_if_pool_index_by_key, &key6);
+ else
+ hash_unset (im->ipsec4_if_pool_index_by_key, key4.as_u64);
+
hash_unset (im->ipsec_if_real_dev_by_show_dev, t->show_instance);
- im->ipsec_if_by_sw_if_index[t->sw_if_index] = ~0;
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]));
+ ipsec_sa_del (ipsec_tun_mk_input_sa_id (ti));
+ ipsec_sa_del (ipsec_tun_mk_output_sa_id (ti));
}
if (sw_if_index)
ipsec_main_t *im = &ipsec_main;
uword *p;
ipsec_sa_t *sa;
- u64 key;
+ ipsec4_tunnel_key_t key;
u32 isa, osa;
p = hash_get (im->sa_index_by_sa_id, args->local_sa_id);
osa = p[0];
sa = pool_elt_at_index (im->sad, p[0]);
- if (sa->is_tunnel)
- key = ((u64) sa->tunnel_dst_addr.ip4.as_u32 << 32 |
- (u64) clib_host_to_net_u32 (sa->spi));
+ if (ipsec_sa_is_set_IS_TUNNEL (sa))
+ {
+ key.remote_ip = sa->tunnel_dst_addr.ip4.as_u32;
+ key.spi = clib_host_to_net_u32 (sa->spi);
+ }
else
- key = ((u64) args->remote_ip.as_u32 << 32 |
- (u64) clib_host_to_net_u32 (sa->spi));
+ {
+ key.remote_ip = args->remote_ip.as_u32;
+ key.spi = clib_host_to_net_u32 (sa->spi);
+ }
- p = hash_get (im->ipsec_if_pool_index_by_key, key);
+ p = hash_get (im->ipsec4_if_pool_index_by_key, key.as_u64);
if (args->is_add)
{
t->input_sa_index = isa;
t->output_sa_index = osa;
t->hw_if_index = ~0;
- hash_set (im->ipsec_if_pool_index_by_key, key,
+ hash_set (im->ipsec4_if_pool_index_by_key, key.as_u64,
t - im->tunnel_interfaces);
/*1st interface, register protocol */
if (pool_elts (im->tunnel_interfaces) == 1)
- ip4_register_protocol (IP_PROTOCOL_IPSEC_ESP,
- ipsec_if_input_node.index);
+ {
+ ip4_register_protocol (IP_PROTOCOL_IPSEC_ESP,
+ ipsec4_if_input_node.index);
+ /* TBD, GRE IPSec6
+ *
+ ip6_register_protocol (IP_PROTOCOL_IPSEC_ESP,
+ ipsec6_if_input_node.index);
+ */
+ }
}
else
{
return VNET_API_ERROR_INVALID_VALUE;
t = pool_elt_at_index (im->tunnel_interfaces, p[0]);
- hash_unset (im->ipsec_if_pool_index_by_key, key);
+ hash_unset (im->ipsec4_if_pool_index_by_key, key.as_u64);
pool_put (im->tunnel_interfaces, t);
}
return 0;
if (type == IPSEC_IF_SET_KEY_TYPE_LOCAL_CRYPTO)
{
sa = pool_elt_at_index (im->sad, t->output_sa_index);
- sa->crypto_alg = alg;
+ ipsec_sa_set_crypto_alg (sa, alg);
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;
+ ipsec_sa_set_integ_alg (sa, alg);
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;
+ ipsec_sa_set_crypto_alg (sa, alg);
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;
+ ipsec_sa_set_integ_alg (sa, alg);
ipsec_mk_key (&sa->integ_key, key, vec_len (key));
}
else
}
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);
+ if (ipsec_sa_is_set_IS_TUNNEL_V6 (sa) ^
+ ipsec_sa_is_set_IS_TUNNEL_V6 (old_sa))
+ {
+ clib_warning ("IPsec interface SA endpoints type can't be changed");
+ return VNET_API_ERROR_INVALID_VALUE;
+ }
+
+ if (ipsec_sa_is_set_IS_TUNNEL_V6 (sa))
+ {
+ ipsec6_tunnel_key_t key;
+
+ /* unset old inbound hash entry. packets should stop arriving */
+ key.remote_ip = old_sa->tunnel_src_addr.ip6;
+ key.spi = clib_host_to_net_u32 (old_sa->spi);
- /* 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);
+ p = hash_get_mem (im->ipsec6_if_pool_index_by_key, &key);
+ if (p)
+ hash_unset_mem_free (&im->ipsec6_if_pool_index_by_key, &key);
+
+ /* set new inbound SA, then set new hash entry */
+ t->input_sa_index = sa_index;
+ key.remote_ip = sa->tunnel_src_addr.ip6;
+ key.spi = clib_host_to_net_u32 (sa->spi);
+
+ hash_set_mem_alloc (&im->ipsec6_if_pool_index_by_key, &key,
+ hi->dev_instance);
+ }
+ else
+ {
+ ipsec4_tunnel_key_t key;
+
+ /* unset old inbound hash entry. packets should stop arriving */
+ key.remote_ip = old_sa->tunnel_src_addr.ip4.as_u32;
+ key.spi = clib_host_to_net_u32 (old_sa->spi);
+
+ p = hash_get (im->ipsec4_if_pool_index_by_key, key.as_u64);
+ if (p)
+ hash_unset (im->ipsec4_if_pool_index_by_key, key.as_u64);
+
+ /* set new inbound SA, then set new hash entry */
+ t->input_sa_index = sa_index;
+ key.remote_ip = sa->tunnel_src_addr.ip4.as_u32;
+ key.spi = clib_host_to_net_u32 (sa->spi);
+
+ hash_set (im->ipsec4_if_pool_index_by_key, key.as_u64,
+ hi->dev_instance);
+ }
}
else
{
old_sa_index = t->output_sa_index;
old_sa = pool_elt_at_index (im->sad, old_sa_index);
+
+ if (ipsec_sa_is_set_IS_TUNNEL_V6 (sa) ^
+ ipsec_sa_is_set_IS_TUNNEL_V6 (old_sa))
+ {
+ clib_warning ("IPsec interface SA endpoints type can't be changed");
+ return VNET_API_ERROR_INVALID_VALUE;
+ }
+
t->output_sa_index = sa_index;
}
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));
+ /* initialize the ipsec-if ip4 hash */
+ im->ipsec4_if_pool_index_by_key =
+ hash_create (0, sizeof (ipsec4_tunnel_key_t));
+ /* initialize the ipsec-if ip6 hash */
+ im->ipsec6_if_pool_index_by_key = hash_create_mem (0,
+ sizeof
+ (ipsec6_tunnel_key_t),
+ sizeof (uword));
im->ipsec_if_real_dev_by_show_dev = hash_create (0, sizeof (uword));
+ udp_register_dst_port (vm, UDP_DST_PORT_ipsec, ipsec4_if_input_node.index,
+ 1);
return 0;
}
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