#include <vnet/adj/adj_delegate.h>
#include <vnet/adj/adj_midchain.h>
#include <vnet/teib/teib.h>
+#include <vnet/mpls/mpls.h>
/* instantiate the bihash functions */
#include <vppinfra/bihash_8_16.h>
if (0 == ipsec_tun_node_regs[af]++)
{
if (AF_IP4 == af)
- {
- ipsec_register_udp_port (UDP_DST_PORT_ipsec);
- ip4_register_protocol (IP_PROTOCOL_IPSEC_ESP,
- ipsec4_tun_input_node.index);
- }
+ ip4_register_protocol (IP_PROTOCOL_IPSEC_ESP,
+ ipsec4_tun_input_node.index);
else
ip6_register_protocol (IP_PROTOCOL_IPSEC_ESP,
ipsec6_tun_input_node.index);
+ ipsec_register_udp_port (UDP_DST_PORT_ipsec, (AF_IP4 == af));
}
}
if (0 == --ipsec_tun_node_regs[af])
{
if (AF_IP4 == af)
- {
- ipsec_unregister_udp_port (UDP_DST_PORT_ipsec);
- ip4_unregister_protocol (IP_PROTOCOL_IPSEC_ESP);
- }
+ ip4_unregister_protocol (IP_PROTOCOL_IPSEC_ESP);
else
ip6_unregister_protocol (IP_PROTOCOL_IPSEC_ESP);
+ ipsec_unregister_udp_port (UDP_DST_PORT_ipsec, (AF_IP4 == af));
}
}
static u32
ipsec_tun_protect_get_adj_next (vnet_link_t linkt,
- const ipsec_tun_protect_t * itp)
+ const ipsec_tun_protect_t *itp)
{
ipsec_main_t *im;
- ipsec_sa_t *sa;
- bool is_ip4;
u32 next;
-
- if (itp->itp_flags & IPSEC_PROTECT_ITF)
- is_ip4 = linkt == VNET_LINK_IP4;
- else
- is_ip4 = ip46_address_is_ip4 (&itp->itp_tun.src);
-
- sa = ipsec_sa_get (itp->itp_out_sa);
im = &ipsec_main;
+ next = 0;
- if ((sa->crypto_alg == IPSEC_CRYPTO_ALG_NONE &&
- sa->integ_alg == IPSEC_INTEG_ALG_NONE) &&
- !(itp->itp_flags & IPSEC_PROTECT_ITF))
- next = (is_ip4 ?
- im->esp4_no_crypto_tun_node_index :
- im->esp6_no_crypto_tun_node_index);
- else if (itp->itp_flags & IPSEC_PROTECT_L2)
- next = (is_ip4 ?
- im->esp4_encrypt_l2_tun_node_index :
- im->esp6_encrypt_l2_tun_node_index);
- else
- next = (is_ip4 ?
- im->esp4_encrypt_tun_node_index :
- im->esp6_encrypt_tun_node_index);
+ if (!(itp->itp_flags & IPSEC_PROTECT_ITF))
+ {
+ if (ip46_address_is_ip4 (&itp->itp_tun.src))
+ linkt = VNET_LINK_IP4;
+ else
+ linkt = VNET_LINK_IP6;
+ }
+
+ switch (linkt)
+ {
+ case VNET_LINK_IP4:
+ next = im->esp4_encrypt_tun_node_index;
+ break;
+ case VNET_LINK_IP6:
+ next = im->esp6_encrypt_tun_node_index;
+ break;
+ case VNET_LINK_MPLS:
+ next = im->esp_mpls_encrypt_tun_node_index;
+ break;
+ case VNET_LINK_ARP:
+ case VNET_LINK_NSH:
+ case VNET_LINK_ETHERNET:
+ ASSERT (0);
+ break;
+ }
return (next);
}
+static void
+ipsec_tun_setup_tx_nodes (u32 sw_if_index, const ipsec_tun_protect_t *itp)
+{
+ vnet_feature_modify_end_node (
+ ip4_main.lookup_main.output_feature_arc_index, sw_if_index,
+ ipsec_tun_protect_get_adj_next (VNET_LINK_IP4, itp));
+ vnet_feature_modify_end_node (
+ ip6_main.lookup_main.output_feature_arc_index, sw_if_index,
+ ipsec_tun_protect_get_adj_next (VNET_LINK_IP6, itp));
+ vnet_feature_modify_end_node (
+ mpls_main.output_feature_arc_index, sw_if_index,
+ ipsec_tun_protect_get_adj_next (VNET_LINK_MPLS, itp));
+}
+
static void
ipsec_tun_protect_add_adj (adj_index_t ai, const ipsec_tun_protect_t * itp)
{
else
{
ipsec_tun_protect_sa_by_adj_index[ai] = itp->itp_out_sa;
- adj_nbr_midchain_update_next_node
- (ai, ipsec_tun_protect_get_adj_next (adj_get_link_type (ai), itp));
+ adj_nbr_midchain_update_next_node (
+ ai, ipsec_tun_protect_get_adj_next (adj_get_link_type (ai), itp));
}
}
if (ip46_address_is_zero (&itp->itp_crypto.dst))
return;
- /* *INDENT-OFF* */
FOR_EACH_IPSEC_PROTECT_INPUT_SAI(itp, sai,
({
sa = ipsec_sa_get (sai);
ipsec4_tunnel_mk_key(&key, &itp->itp_crypto.dst.ip4,
clib_host_to_net_u32 (sa->spi));
- if (!im->tun4_protect_by_key.nbuckets)
- clib_bihash_init_8_16 (&im->tun4_protect_by_key,
- "IPSec IPv4 tunnels",
- IPSEC_TUN_DEFAULT_HASH_NUM_BUCKETS,
- IPSEC_TUN_DEFAULT_HASH_MEMORY_SIZE);
+ if (!clib_bihash_is_initialised_8_16 (&im->tun4_protect_by_key))
+ clib_bihash_init_8_16 (&im->tun4_protect_by_key,
+ "IPSec IPv4 tunnels",
+ IPSEC_TUN_DEFAULT_HASH_NUM_BUCKETS,
+ IPSEC_TUN_DEFAULT_HASH_MEMORY_SIZE);
- clib_bihash_add_del_8_16 (&im->tun4_protect_by_key, bkey, 1);
- ipsec_tun_register_nodes(AF_IP4);
- }
+ clib_bihash_add_del_8_16 (&im->tun4_protect_by_key, bkey, 1);
+ ipsec_tun_register_nodes (AF_IP4);
+ }
else
{
ipsec6_tunnel_kv_t key = {
};
clib_bihash_kv_24_16_t *bkey = (clib_bihash_kv_24_16_t*)&key;
- if (!im->tun4_protect_by_key.nbuckets)
- clib_bihash_init_24_16 (&im->tun6_protect_by_key,
- "IPSec IPv6 tunnels",
- IPSEC_TUN_DEFAULT_HASH_NUM_BUCKETS,
- IPSEC_TUN_DEFAULT_HASH_MEMORY_SIZE);
- clib_bihash_add_del_24_16 (&im->tun6_protect_by_key, bkey, 1);
- ipsec_tun_register_nodes(AF_IP6);
- }
+ if (!clib_bihash_is_initialised_24_16 (&im->tun6_protect_by_key))
+ clib_bihash_init_24_16 (&im->tun6_protect_by_key,
+ "IPSec IPv6 tunnels",
+ IPSEC_TUN_DEFAULT_HASH_NUM_BUCKETS,
+ IPSEC_TUN_DEFAULT_HASH_MEMORY_SIZE);
+ clib_bihash_add_del_24_16 (&im->tun6_protect_by_key, bkey, 1);
+ ipsec_tun_register_nodes (AF_IP6);
+ }
}))
- /* *INDENT-ON* */
}
static adj_walk_rc_t
{
if (INDEX_INVALID == idi->id_itp)
{
- // ipsec_tun_protect_feature_set (itp, 1);
+ ipsec_tun_setup_tx_nodes (itp->itp_sw_if_index, itp);
}
idi->id_itp = itp - ipsec_tun_protect_pool;
* enable the encrypt feature for egress if this is the first addition
* on this interface
*/
- // ipsec_tun_protect_feature_set (itp, 1);
+ ipsec_tun_setup_tx_nodes (itp->itp_sw_if_index, itp);
}
hash_set_mem (idi->id_hash, itp->itp_key, itp - ipsec_tun_protect_pool);
{
const ipsec_sa_t *sa;
- /* *INDENT-OFF* */
FOR_EACH_IPSEC_PROTECT_INPUT_SA(itp, sa,
({
if (ip46_address_is_ip4 (&itp->itp_crypto.dst))
}
}
}));
- /* *INDENT-ON* */
}
static adj_walk_rc_t
if (vnet_sw_interface_is_p2p (vnet_get_main (), itp->itp_sw_if_index))
{
- // ipsec_tun_protect_feature_set (itp, 0);
+ ipsec_itf_reset_tx_nodes (itp->itp_sw_if_index);
idi->id_itp = INDEX_INVALID;
FOR_EACH_FIB_IP_PROTOCOL (nh_proto)
if (0 == hash_elts (idi->id_hash))
{
- // ipsec_tun_protect_feature_set (itp, 0);
+ ipsec_itf_reset_tx_nodes (itp->itp_sw_if_index);
hash_free (idi->id_hash);
idi->id_hash = NULL;
}
{
ipsec_sa_t *sa;
- /* *INDENT-OFF* */
FOR_EACH_IPSEC_PROTECT_INPUT_SA(itp, sa,
({
if (ipsec_sa_is_set_IS_TUNNEL (sa))
{
- itp->itp_crypto.src = sa->tunnel_dst_addr;
- itp->itp_crypto.dst = sa->tunnel_src_addr;
- if (!(itp->itp_flags & IPSEC_PROTECT_ITF))
- {
- ipsec_sa_set_IS_PROTECT (sa);
- itp->itp_flags |= IPSEC_PROTECT_ENCAPED;
- }
+ itp->itp_crypto.src = ip_addr_46 (&sa->tunnel.t_dst);
+ itp->itp_crypto.dst = ip_addr_46 (&sa->tunnel.t_src);
+ if (!(itp->itp_flags & IPSEC_PROTECT_ITF))
+ {
+ ipsec_sa_set_IS_PROTECT (sa);
+ itp->itp_flags |= IPSEC_PROTECT_ENCAPED;
+ }
}
else
{
itp->itp_flags &= ~IPSEC_PROTECT_ENCAPED;
}
}));
- /* *INDENT-ON* */
}
static void
ipsec_sa_lock (itp->itp_out_sa);
- /* *INDENT-OFF* */
+ if (itp->itp_flags & IPSEC_PROTECT_ITF)
+ ipsec_sa_set_NO_ALGO_NO_DROP (ipsec_sa_get (itp->itp_out_sa));
+
FOR_EACH_IPSEC_PROTECT_INPUT_SAI(itp, sai,
({
ipsec_sa_lock(sai);
}));
ipsec_tun_protect_set_crypto_addr(itp);
- /* *INDENT-ON* */
/*
* add to the DB against each SA
ipsec_sa_t *sa;
index_t sai;
- /* *INDENT-OFF* */
FOR_EACH_IPSEC_PROTECT_INPUT_SA(itp, sa,
({
ipsec_sa_unset_IS_PROTECT (sa);
ipsec_tun_protect_rx_db_remove (im, itp);
ipsec_tun_protect_tx_db_remove (itp);
+ ipsec_sa_unset_NO_ALGO_NO_DROP (ipsec_sa_get (itp->itp_out_sa));
ipsec_sa_unlock(itp->itp_out_sa);
FOR_EACH_IPSEC_PROTECT_INPUT_SAI(itp, sai,
({
ipsec_sa_unlock(sai);
}));
- /* *INDENT-ON* */
ITP_DBG (itp, "unconfigured");
}
-int
-ipsec_tun_protect_update_one (u32 sw_if_index,
- const ip_address_t * nh, u32 sa_out, u32 sa_in)
-{
- u32 *sas_in = NULL;
- int rv;
-
- vec_add1 (sas_in, sa_in);
- rv = ipsec_tun_protect_update (sw_if_index, nh, sa_out, sas_in);
-
- return (rv);
-}
-
-int
-ipsec_tun_protect_update_out (u32 sw_if_index,
- const ip_address_t * nh, u32 sa_out)
-{
- u32 itpi, *sas_in, sai, *saip;
- ipsec_tun_protect_t *itp;
- ipsec_main_t *im;
- int rv;
-
- sas_in = NULL;
- rv = 0;
- im = &ipsec_main;
-
- itpi = ipsec_tun_protect_find (sw_if_index, nh);
-
- if (INDEX_INVALID == itpi)
- {
- return (VNET_API_ERROR_INVALID_INTERFACE);
- }
-
- itp = pool_elt_at_index (ipsec_tun_protect_pool, itpi);
-
- /* *INDENT-OFF* */
- FOR_EACH_IPSEC_PROTECT_INPUT_SAI (itp, sai,
- ({
- ipsec_sa_lock (sai);
- vec_add1 (sas_in, sai);
- }));
- /* *INDENT-ON* */
-
- sa_out = ipsec_sa_find_and_lock (sa_out);
-
- if (~0 == sa_out)
- {
- rv = VNET_API_ERROR_INVALID_VALUE;
- goto out;
- }
-
- ipsec_tun_protect_unconfig (im, itp);
- ipsec_tun_protect_config (im, itp, sa_out, sas_in);
-
- ipsec_sa_unlock (sa_out);
- vec_foreach (saip, sas_in) ipsec_sa_unlock (*saip);
-
-out:
- vec_free (sas_in);
- return (rv);
-}
-
-int
-ipsec_tun_protect_update_in (u32 sw_if_index,
- const ip_address_t * nh, u32 sa_in)
-{
- u32 itpi, *sas_in, sa_out;
- ipsec_tun_protect_t *itp;
- ipsec_main_t *im;
- int rv;
-
- sas_in = NULL;
- rv = 0;
- im = &ipsec_main;
- itpi = ipsec_tun_protect_find (sw_if_index, nh);
-
- if (INDEX_INVALID == itpi)
- {
- return (VNET_API_ERROR_INVALID_INTERFACE);
- }
-
- sa_in = ipsec_sa_find_and_lock (sa_in);
-
- if (~0 == sa_in)
- {
- rv = VNET_API_ERROR_INVALID_VALUE;
- goto out;
- }
- vec_add1 (sas_in, sa_in);
-
- itp = pool_elt_at_index (ipsec_tun_protect_pool, itpi);
- sa_out = itp->itp_out_sa;
-
- ipsec_sa_lock (sa_out);
-
- ipsec_tun_protect_unconfig (im, itp);
- ipsec_tun_protect_config (im, itp, sa_out, sas_in);
-
- ipsec_sa_unlock (sa_out);
- ipsec_sa_unlock (sa_in);
-out:
- vec_free (sas_in);
- return (rv);
-}
-
static void
ipsec_tun_protect_update_from_teib (ipsec_tun_protect_t * itp,
const teib_entry_t * ne)
ipsec_main_t *im;
int rv;
+ if (NULL == nh)
+ nh = &IP_ADDR_ALL_0;
+
ITP_DBG2 ("update: %U/%U",
format_vnet_sw_if_index_name, vnet_get_main (), sw_if_index,
format_ip_address, nh);
rv = 0;
im = &ipsec_main;
- if (NULL == nh)
- nh = &IP_ADDR_ALL_0;
itpi = ipsec_tun_protect_find (sw_if_index, nh);
vec_foreach_index (ii, sas_in)
if (ip46_address_is_zero (&itp->itp_tun.src))
{
- /* must be one of thos pesky ipsec interfaces that has no encap.
- * the encap then MUST comefrom the tunnel mode SA.
+ /*
+ * must be one of those pesky ipsec interfaces that has no encap.
+ * the encap then MUST come from the tunnel mode SA.
*/
ipsec_sa_t *sa;
{
index_t itpi;
- /* *INDENT-OFF* */
- pool_foreach_index(itpi, ipsec_tun_protect_pool,
- ({
+ pool_foreach_index (itpi, ipsec_tun_protect_pool)
+ {
fn (itpi, ctx);
- }));
- /* *INDENT-ON* */
+ }
}
void
idi = &itp_db.id_itf[sw_if_index];
- /* *INDENT-OFF* */
hash_foreach(key, itpi, idi->id_hash,
({
fn (itpi, ctx);
}));
- /* *INDENT-ON* */
if (INDEX_INVALID != idi->id_itp)
fn (idi->id_itp, ctx);
}
+static void
+ipsec_tun_feature_update (u32 sw_if_index, u8 arc_index, u8 is_enable,
+ void *data)
+{
+ ipsec_tun_protect_t *itp;
+ index_t itpi;
+
+ if (arc_index != feature_main.device_input_feature_arc_index)
+ return;
+
+ /* Only p2p tunnels supported */
+ itpi = ipsec_tun_protect_find (sw_if_index, &IP_ADDR_ALL_0);
+ if (itpi == INDEX_INVALID)
+ return;
+
+ itp = ipsec_tun_protect_get (itpi);
+
+ if (is_enable)
+ {
+ u32 decrypt_tun = ip46_address_is_ip4 (&itp->itp_crypto.dst) ?
+ ipsec_main.esp4_decrypt_tun_node_index :
+ ipsec_main.esp6_decrypt_tun_node_index;
+
+ if (!(itp->itp_flags & IPSEC_PROTECT_FEAT))
+ {
+ itp->itp_flags |= IPSEC_PROTECT_FEAT;
+ vnet_feature_modify_end_node (
+ feature_main.device_input_feature_arc_index, sw_if_index,
+ decrypt_tun);
+ }
+ }
+ else
+ {
+ if (itp->itp_flags & IPSEC_PROTECT_FEAT)
+ {
+ itp->itp_flags &= ~IPSEC_PROTECT_FEAT;
+
+ u32 eth_in =
+ vlib_get_node_by_name (vlib_get_main (), (u8 *) "ethernet-input")
+ ->index;
+
+ vnet_feature_modify_end_node (
+ feature_main.device_input_feature_arc_index, sw_if_index, eth_in);
+ }
+ }
+
+ /* Propagate flag change into lookup entries */
+ ipsec_tun_protect_rx_db_remove (&ipsec_main, itp);
+ ipsec_tun_protect_rx_db_add (&ipsec_main, itp);
+}
+
static void
ipsec_tun_protect_adj_delegate_adj_deleted (adj_delegate_t * ad)
{
if (!adj_is_midchain (ai))
return;
+ vec_validate_init_empty (ipsec_tun_protect_sa_by_adj_index, ai,
+ INDEX_INVALID);
+
adj = adj_get (ai);
ip_address_from_46 (&adj->sub_type.midchain.next_hop,
"IPSec IPv6 tunnels", n_buckets, table_size);
}
-clib_error_t *
-ipsec_tunnel_protect_init (vlib_main_t * vm)
+static clib_error_t *
+ipsec_tunnel_protect_init (vlib_main_t *vm)
{
ipsec_main_t *im;
IPSEC_TUN_DEFAULT_HASH_NUM_BUCKETS,
IPSEC_TUN_DEFAULT_HASH_MEMORY_SIZE);
- /* set up feature nodes to drop outbound packets with no crypto alg set */
- im->esp4_no_crypto_tun_node_index =
- vlib_get_node_by_name (vm, (u8 *) "esp4-no-crypto")->index;
- im->esp6_no_crypto_tun_node_index =
- vlib_get_node_by_name (vm, (u8 *) "esp6-no-crypto")->index;
- im->esp6_encrypt_l2_tun_node_index =
- vlib_get_node_by_name (vm, (u8 *) "esp6-encrypt-tun")->index;
- im->esp4_encrypt_l2_tun_node_index =
- vlib_get_node_by_name (vm, (u8 *) "esp4-encrypt-tun")->index;
-
ipsec_tun_adj_delegate_type =
adj_delegate_register_new_type (&ipsec_tun_adj_delegate_vft);
teib_register (&ipsec_tun_teib_vft);
- return 0;
-}
-
-VLIB_INIT_FUNCTION (ipsec_tunnel_protect_init);
-
-static clib_error_t *
-ipsec_config (vlib_main_t * vm, unformat_input_t * input)
-{
- unformat_input_t sub_input;
-
- while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
- {
- if (unformat (input, "ip4 %U", unformat_vlib_cli_sub_input, &sub_input))
- {
- uword table_size = ~0;
- u32 n_buckets = ~0;
-
- while (unformat_check_input (&sub_input) != UNFORMAT_END_OF_INPUT)
- {
- if (unformat (&sub_input, "num-buckets %u", &n_buckets))
- ;
- else
- return clib_error_return (0, "unknown input `%U'",
- format_unformat_error, &sub_input);
- }
-
- ipsec_tun_table_init (AF_IP4, table_size, n_buckets);
- }
- else if (unformat (input, "ip6 %U", unformat_vlib_cli_sub_input,
- &sub_input))
- {
- uword table_size = ~0;
- u32 n_buckets = ~0;
-
- while (unformat_check_input (&sub_input) != UNFORMAT_END_OF_INPUT)
- {
- if (unformat (&sub_input, "num-buckets %u", &n_buckets))
- ;
- else
- return clib_error_return (0, "unknown input `%U'",
- format_unformat_error, &sub_input);
- }
-
- ipsec_tun_table_init (AF_IP6, table_size, n_buckets);
- }
- else
- return clib_error_return (0, "unknown input `%U'",
- format_unformat_error, input);
- }
+ vnet_feature_register (ipsec_tun_feature_update, NULL);
return 0;
}
-VLIB_CONFIG_FUNCTION (ipsec_config, "ipsec");
+VLIB_INIT_FUNCTION (ipsec_tunnel_protect_init);
/*
* fd.io coding-style-patch-verification: ON
Code Review / vpp.git / blobdiff