+/*
+ * Copyright (c) 2011-2016 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
#include <vppinfra/types.h>
#include <vlibmemory/api.h>
#include <vlib/vlib.h>
bfd_udp_main_t bfd_udp_main;
+static u16
+bfd_udp_bs_idx_to_sport (u32 bs_idx)
+{
+ /* The source port MUST be in the range 49152 through 65535. The same UDP
+ * source port number MUST be used for all BFD Control packets associated
+ * with a particular session. The source port number SHOULD be unique among
+ * all BFD sessions on the system. If more than 16384 BFD sessions are
+ * simultaneously active, UDP source port numbers MAY be reused on
+ * multiple sessions, but the number of distinct uses of the same UDP
+ * source port number SHOULD be minimized.
+ */
+ return 49152 + bs_idx % (65535 - 49152 + 1);
+}
+
void
bfd_add_udp4_transport (vlib_main_t * vm, vlib_buffer_t * b,
- bfd_udp_session_t * bus)
+ const bfd_session_t * bs)
{
+ const bfd_udp_session_t *bus = &bs->udp;
const bfd_udp_key_t *key = &bus->key;
b->flags |= VNET_BUFFER_LOCALLY_ORIGINATED;
ip4_header_t ip4;
udp_header_t udp;
} ip4_udp_headers;
- ip4_udp_headers *headers = vlib_buffer_get_current (b);
+ ip4_udp_headers *headers = NULL;
vlib_buffer_advance (b, -sizeof (*headers));
headers = vlib_buffer_get_current (b);
memset (headers, 0, sizeof (*headers));
headers->ip4.src_address.as_u32 = key->local_addr.ip4.as_u32;
headers->ip4.dst_address.as_u32 = key->peer_addr.ip4.as_u32;
- headers->udp.src_port = clib_host_to_net_u16 (50000); /* FIXME */
+ headers->udp.src_port =
+ clib_host_to_net_u16 (bfd_udp_bs_idx_to_sport (bs->bs_idx));
headers->udp.dst_port = clib_host_to_net_u16 (UDP_DST_PORT_bfd4);
/* fix ip length, checksum and udp length */
void
bfd_add_udp6_transport (vlib_main_t * vm, vlib_buffer_t * b,
- bfd_udp_session_t * bus)
+ const bfd_session_t * bs)
{
+ const bfd_udp_session_t *bus = &bs->udp;
const bfd_udp_key_t *key = &bus->key;
b->flags |= VNET_BUFFER_LOCALLY_ORIGINATED;
ip6_header_t ip6;
udp_header_t udp;
} ip6_udp_headers;
- vlib_buffer_advance (b, -sizeof (ip6_udp_headers));
- ip6_udp_headers *headers = vlib_buffer_get_current (b);
+ ip6_udp_headers *headers = NULL;
+ vlib_buffer_advance (b, -sizeof (*headers));
+ headers = vlib_buffer_get_current (b);
memset (headers, 0, sizeof (*headers));
headers->ip6.ip_version_traffic_class_and_flow_label =
clib_host_to_net_u32 (0x6 << 28);
clib_memcpy (&headers->ip6.dst_address, &key->peer_addr.ip6,
sizeof (headers->ip6.dst_address));
- headers->udp.src_port = clib_host_to_net_u16 (50000); /* FIXME */
+ headers->udp.src_port =
+ clib_host_to_net_u16 (bfd_udp_bs_idx_to_sport (bs->bs_idx));
headers->udp.dst_port = clib_host_to_net_u16 (UDP_DST_PORT_bfd6);
/* fix ip payload length and udp length */
return 0;
}
+static void
+bfd_udp_key_init (bfd_udp_key_t * key, u32 sw_if_index,
+ const ip46_address_t * local_addr,
+ const ip46_address_t * peer_addr)
+{
+ memset (key, 0, sizeof (*key));
+ key->sw_if_index = sw_if_index;
+ key->local_addr.as_u64[0] = local_addr->as_u64[0];
+ key->local_addr.as_u64[1] = local_addr->as_u64[1];
+ key->peer_addr.as_u64[0] = peer_addr->as_u64[0];
+ key->peer_addr.as_u64[1] = peer_addr->as_u64[1];
+}
+
static vnet_api_error_t
bfd_udp_add_session_internal (bfd_udp_main_t * bum, u32 sw_if_index,
- u32 desired_min_tx_us, u32 required_min_rx_us,
- u8 detect_mult,
+ u32 desired_min_tx_usec,
+ u32 required_min_rx_usec, u8 detect_mult,
const ip46_address_t * local_addr,
const ip46_address_t * peer_addr,
- u32 * bs_index)
+ bfd_session_t ** bs_out)
{
- vnet_sw_interface_t *sw_if =
- vnet_get_sw_interface (vnet_get_main (), sw_if_index);
/* get a pool entry and if we end up not needing it, give it back */
bfd_transport_t t = BFD_TRANSPORT_UDP4;
if (!ip46_address_is_ip4 (local_addr))
bfd_udp_session_t *bus = &bs->udp;
memset (bus, 0, sizeof (*bus));
bfd_udp_key_t *key = &bus->key;
- key->sw_if_index = sw_if->sw_if_index;
- key->local_addr.as_u64[0] = local_addr->as_u64[0];
- key->local_addr.as_u64[1] = local_addr->as_u64[1];
- key->peer_addr.as_u64[0] = peer_addr->as_u64[0];
- key->peer_addr.as_u64[1] = peer_addr->as_u64[1];
+ bfd_udp_key_init (key, sw_if_index, local_addr, peer_addr);
const bfd_session_t *tmp = bfd_lookup_session (bum, key);
if (tmp)
{
- BFD_ERR ("duplicate bfd-udp session, existing bs_idx=%d", tmp->bs_idx);
+ clib_warning ("duplicate bfd-udp session, existing bs_idx=%d",
+ tmp->bs_idx);
bfd_put_session (bum->bfd_main, bs);
return VNET_API_ERROR_BFD_EEXIST;
}
- key->sw_if_index = sw_if->sw_if_index;
mhash_set (&bum->bfd_session_idx_by_bfd_key, key, bs->bs_idx, NULL);
BFD_DBG ("session created, bs_idx=%u, sw_if_index=%d, local=%U, peer=%U",
bs->bs_idx, key->sw_if_index, format_ip46_address,
"returns %d", format_ip46_address, &key->peer_addr,
IP46_TYPE_ANY, key->sw_if_index, bus->adj_index);
}
- bs->config_desired_min_tx_us = desired_min_tx_us;
- bs->required_min_rx_us = required_min_rx_us;
- bs->required_min_echo_rx_us = required_min_rx_us; /* FIXME */
- bs->local_detect_mult = detect_mult;
- bfd_session_start (bum->bfd_main, bs);
- *bs_index = bs->bs_idx;
- return 0;
+ *bs_out = bs;
+ return bfd_session_set_params (bum->bfd_main, bs, desired_min_tx_usec,
+ required_min_rx_usec, detect_mult);
}
static vnet_api_error_t
ip_interface_address_t *ia = NULL;
if (!sw_if)
{
- BFD_ERR ("got NULL sw_if");
+ clib_warning ("got NULL sw_if");
return VNET_API_ERROR_INVALID_SW_IF_INDEX;
}
if (ip46_address_is_ip4 (local_addr))
{
if (!ip46_address_is_ip4 (peer_addr))
{
- BFD_ERR ("IP family mismatch");
+ clib_warning ("IP family mismatch");
return VNET_API_ERROR_INVALID_ARGUMENT;
}
ip4_main_t *im = &ip4_main;
{
if (ip46_address_is_ip4 (peer_addr))
{
- BFD_ERR ("IP family mismatch");
+ clib_warning ("IP family mismatch");
return VNET_API_ERROR_INVALID_ARGUMENT;
}
ip6_main_t *im = &ip6_main;
ip6_address_t *x =
ip_interface_address_get_address (&im->lookup_main, ia);
if (local_addr->ip6.as_u64[0] == x->as_u64[0] &&
- local_addr->ip6.as_u64[1] == x->as_u64[1])
+ local_addr->ip6.as_u64[1] == x->as_u64[1])
{
/* valid address for this interface */
local_ip_valid = 1;
if (!local_ip_valid)
{
- BFD_ERR ("address not found on interface");
+ clib_warning ("address not found on interface");
return VNET_API_ERROR_ADDRESS_NOT_FOUND_FOR_INTERFACE;
}
return 0;
}
-vnet_api_error_t
-bfd_udp_add_session (u32 sw_if_index, u32 desired_min_tx_us,
- u32 required_min_rx_us, u8 detect_mult,
- const ip46_address_t * local_addr,
- const ip46_address_t * peer_addr, u32 * bs_index)
+static vnet_api_error_t
+bfd_udp_find_session_by_api_input (u32 sw_if_index,
+ const ip46_address_t * local_addr,
+ const ip46_address_t * peer_addr,
+ bfd_session_t ** bs_out)
+{
+ vnet_api_error_t rv =
+ bfd_udp_validate_api_input (sw_if_index, local_addr, peer_addr);
+ if (!rv)
+ {
+ bfd_udp_main_t *bum = &bfd_udp_main;
+ bfd_udp_key_t key;
+ bfd_udp_key_init (&key, sw_if_index, local_addr, peer_addr);
+ bfd_session_t *bs = bfd_lookup_session (bum, &key);
+ if (bs)
+ {
+ *bs_out = bs;
+ }
+ else
+ {
+ clib_warning
+ ("BFD session not found (sw_if_index=%u, local=%U, peer=%U",
+ sw_if_index, format_ip46_address, local_addr, IP46_TYPE_ANY,
+ format_ip46_address, peer_addr, IP46_TYPE_ANY);
+ return VNET_API_ERROR_BFD_ENOENT;
+ }
+ }
+ return rv;
+}
+
+static vnet_api_error_t
+bfd_api_verify_common (u32 sw_if_index, u32 desired_min_tx_usec,
+ u32 required_min_rx_usec, u8 detect_mult,
+ const ip46_address_t * local_addr,
+ const ip46_address_t * peer_addr)
{
vnet_api_error_t rv =
bfd_udp_validate_api_input (sw_if_index, local_addr, peer_addr);
}
if (detect_mult < 1)
{
- BFD_ERR ("detect_mult < 1");
+ clib_warning ("detect_mult < 1");
return VNET_API_ERROR_INVALID_ARGUMENT;
}
- if (desired_min_tx_us < 1)
+ if (desired_min_tx_usec < 1)
{
- BFD_ERR ("desired_min_tx_us < 1");
+ clib_warning ("desired_min_tx_usec < 1");
return VNET_API_ERROR_INVALID_ARGUMENT;
}
- return bfd_udp_add_session_internal (&bfd_udp_main, sw_if_index,
- desired_min_tx_us, required_min_rx_us,
- detect_mult, local_addr, peer_addr,
- bs_index);
+ return 0;
+}
+
+static void
+bfd_udp_del_session_internal (bfd_session_t * bs)
+{
+ bfd_udp_main_t *bum = &bfd_udp_main;
+ BFD_DBG ("free bfd-udp session, bs_idx=%d", bs->bs_idx);
+ mhash_unset (&bum->bfd_session_idx_by_bfd_key, &bs->udp.key, NULL);
+ adj_unlock (bs->udp.adj_index);
+ bfd_put_session (bum->bfd_main, bs);
+}
+
+vnet_api_error_t
+bfd_udp_add_session (u32 sw_if_index, const ip46_address_t * local_addr,
+ const ip46_address_t * peer_addr,
+ u32 desired_min_tx_usec, u32 required_min_rx_usec,
+ u8 detect_mult, u8 is_authenticated, u32 conf_key_id,
+ u8 bfd_key_id)
+{
+ vnet_api_error_t rv =
+ bfd_api_verify_common (sw_if_index, desired_min_tx_usec,
+ required_min_rx_usec, detect_mult,
+ local_addr, peer_addr);
+ bfd_session_t *bs = NULL;
+ if (!rv)
+ {
+ rv =
+ bfd_udp_add_session_internal (&bfd_udp_main, sw_if_index,
+ desired_min_tx_usec,
+ required_min_rx_usec, detect_mult,
+ local_addr, peer_addr, &bs);
+ }
+ if (!rv && is_authenticated)
+ {
+#if WITH_LIBSSL > 0
+ rv = bfd_auth_activate (bs, conf_key_id, bfd_key_id,
+ 0 /* is not delayed */ );
+#else
+ clib_warning ("SSL missing, cannot add authenticated BFD session");
+ rv = VNET_API_ERROR_BFD_NOTSUPP;
+#endif
+ if (rv)
+ {
+ bfd_udp_del_session_internal (bs);
+ }
+ }
+ if (!rv)
+ {
+ bfd_session_start (bfd_udp_main.bfd_main, bs);
+ }
+
+ return rv;
+}
+
+vnet_api_error_t
+bfd_udp_mod_session (u32 sw_if_index,
+ const ip46_address_t * local_addr,
+ const ip46_address_t * peer_addr,
+ u32 desired_min_tx_usec,
+ u32 required_min_rx_usec, u8 detect_mult)
+{
+ bfd_session_t *bs = NULL;
+ vnet_api_error_t rv =
+ bfd_udp_find_session_by_api_input (sw_if_index, local_addr, peer_addr,
+ &bs);
+ if (rv)
+ {
+ return rv;
+ }
+
+ return bfd_session_set_params (bfd_udp_main.bfd_main, bs,
+ desired_min_tx_usec, required_min_rx_usec,
+ detect_mult);
}
vnet_api_error_t
const ip46_address_t * local_addr,
const ip46_address_t * peer_addr)
{
+ bfd_session_t *bs = NULL;
vnet_api_error_t rv =
- bfd_udp_validate_api_input (sw_if_index, local_addr, peer_addr);
+ bfd_udp_find_session_by_api_input (sw_if_index, local_addr, peer_addr,
+ &bs);
if (rv)
{
return rv;
}
- bfd_udp_main_t *bum = &bfd_udp_main;
- vnet_sw_interface_t *sw_if =
- vnet_get_sw_interface (vnet_get_main (), sw_if_index);
- bfd_udp_key_t key;
- memset (&key, 0, sizeof (key));
- key.sw_if_index = sw_if->sw_if_index;
- key.local_addr.as_u64[0] = local_addr->as_u64[0];
- key.local_addr.as_u64[1] = local_addr->as_u64[1];
- key.peer_addr.as_u64[0] = peer_addr->as_u64[0];
- key.peer_addr.as_u64[1] = peer_addr->as_u64[1];
- bfd_session_t *tmp = bfd_lookup_session (bum, &key);
- if (tmp)
+ bfd_udp_del_session_internal (bs);
+ return 0;
+}
+
+vnet_api_error_t
+bfd_udp_session_set_flags (u32 sw_if_index,
+ const ip46_address_t * local_addr,
+ const ip46_address_t * peer_addr, u8 admin_up_down)
+{
+ bfd_session_t *bs = NULL;
+ vnet_api_error_t rv =
+ bfd_udp_find_session_by_api_input (sw_if_index, local_addr, peer_addr,
+ &bs);
+ if (rv)
{
- BFD_DBG ("free bfd-udp session, bs_idx=%d", tmp->bs_idx);
- mhash_unset (&bum->bfd_session_idx_by_bfd_key, &key, NULL);
- adj_unlock (tmp->udp.adj_index);
- bfd_put_session (bum->bfd_main, tmp);
+ return rv;
+ }
+ bfd_session_set_flags (bs, admin_up_down);
+ return 0;
+}
+
+vnet_api_error_t
+bfd_auth_set_key (u32 conf_key_id, u8 auth_type, u8 key_len,
+ const u8 * key_data)
+{
+#if WITH_LIBSSL > 0
+ bfd_auth_key_t *auth_key = NULL;
+ if (!key_len || key_len > bfd_max_len_for_auth_type (auth_type))
+ {
+ clib_warning ("Invalid authentication key length for auth_type=%d:%s "
+ "(key_len=%u, must be "
+ "non-zero, expected max=%u)",
+ auth_type, bfd_auth_type_str (auth_type), key_len,
+ (u32) bfd_max_len_for_auth_type (auth_type));
+ return VNET_API_ERROR_INVALID_VALUE;
+ }
+ if (!bfd_auth_type_supported (auth_type))
+ {
+ clib_warning ("Unsupported auth type=%d:%s", auth_type,
+ bfd_auth_type_str (auth_type));
+ return VNET_API_ERROR_BFD_NOTSUPP;
+ }
+ bfd_main_t *bm = bfd_udp_main.bfd_main;
+ uword *key_idx_p = hash_get (bm->auth_key_by_conf_key_id, conf_key_id);
+ if (key_idx_p)
+ {
+ /* modifying existing key - must not be used */
+ const uword key_idx = *key_idx_p;
+ auth_key = pool_elt_at_index (bm->auth_keys, key_idx);
+ if (auth_key->use_count > 0)
+ {
+ clib_warning ("Authentication key with conf ID %u in use by %u BFD "
+ "sessions - cannot modify",
+ conf_key_id, auth_key->use_count);
+ return VNET_API_ERROR_BFD_EINUSE;
+ }
}
else
{
- BFD_ERR ("no such session");
- return VNET_API_ERROR_BFD_NOENT;
+ /* adding new key */
+ pool_get (bm->auth_keys, auth_key);
+ auth_key->conf_key_id = conf_key_id;
+ hash_set (bm->auth_key_by_conf_key_id, conf_key_id,
+ auth_key - bm->auth_keys);
}
+ auth_key->auth_type = auth_type;
+ memset (auth_key->key, 0, sizeof (auth_key->key));
+ clib_memcpy (auth_key->key, key_data, key_len);
return 0;
+#else
+ clib_warning ("SSL missing, cannot manipulate authentication keys");
+ return VNET_API_ERROR_BFD_NOTSUPP;
+#endif
+}
+
+vnet_api_error_t
+bfd_auth_del_key (u32 conf_key_id)
+{
+#if WITH_LIBSSL > 0
+ bfd_auth_key_t *auth_key = NULL;
+ bfd_main_t *bm = bfd_udp_main.bfd_main;
+ uword *key_idx_p = hash_get (bm->auth_key_by_conf_key_id, conf_key_id);
+ if (key_idx_p)
+ {
+ /* deleting existing key - must not be used */
+ const uword key_idx = *key_idx_p;
+ auth_key = pool_elt_at_index (bm->auth_keys, key_idx);
+ if (auth_key->use_count > 0)
+ {
+ clib_warning ("Authentication key with conf ID %u in use by %u BFD "
+ "sessions - cannot delete",
+ conf_key_id, auth_key->use_count);
+ return VNET_API_ERROR_BFD_EINUSE;
+ }
+ hash_unset (bm->auth_key_by_conf_key_id, conf_key_id);
+ memset (auth_key, 0, sizeof (*auth_key));
+ pool_put (bm->auth_keys, auth_key);
+ }
+ else
+ {
+ /* no such key */
+ clib_warning ("Authentication key with conf ID %u does not exist",
+ conf_key_id);
+ return VNET_API_ERROR_BFD_ENOENT;
+ }
+ return 0;
+#else
+ clib_warning ("SSL missing, cannot manipulate authentication keys");
+ return VNET_API_ERROR_BFD_NOTSUPP;
+#endif
+}
+
+vnet_api_error_t
+bfd_udp_auth_activate (u32 sw_if_index,
+ const ip46_address_t * local_addr,
+ const ip46_address_t * peer_addr,
+ u32 conf_key_id, u8 key_id, u8 is_delayed)
+{
+#if WITH_LIBSSL > 0
+ bfd_session_t *bs = NULL;
+ vnet_api_error_t rv =
+ bfd_udp_find_session_by_api_input (sw_if_index, local_addr, peer_addr,
+ &bs);
+ if (rv)
+ {
+ return rv;
+ }
+ return bfd_auth_activate (bs, conf_key_id, key_id, is_delayed);
+#else
+ clib_warning ("SSL missing, cannot activate BFD authentication");
+ return VNET_API_ERROR_BFD_NOTSUPP;
+#endif
+}
+
+vnet_api_error_t
+bfd_udp_auth_deactivate (u32 sw_if_index,
+ const ip46_address_t * local_addr,
+ const ip46_address_t * peer_addr, u8 is_delayed)
+{
+ bfd_session_t *bs = NULL;
+ vnet_api_error_t rv =
+ bfd_udp_find_session_by_api_input (sw_if_index, local_addr, peer_addr,
+ &bs);
+ if (rv)
+ {
+ return rv;
+ }
+ return bfd_auth_deactivate (bs, is_delayed);
}
typedef enum
expected_ttl);
return BFD_UDP_ERROR_BAD;
}
- if (clib_net_to_host_u16 (udp->src_port) < 49152 ||
- clib_net_to_host_u16 (udp->src_port) > 65535)
+ if (clib_net_to_host_u16 (udp->src_port) < 49152)
{
BFD_ERR ("Invalid UDP src port %u, out of range <49152,65535>",
udp->src_port);
BFD_ERR ("Couldn't find ip4 or udp header");
return BFD_UDP_ERROR_BAD;
}
+ const u32 udp_payload_length = udp->length - sizeof (*udp);
+ if (pkt->head.length > udp_payload_length)
+ {
+ BFD_ERR
+ ("BFD packet length is larger than udp payload length (%u > %u)",
+ pkt->head.length, udp_payload_length);
+ return BFD_UDP_ERROR_BAD;
+ }
if (!bfd_verify_pkt_common (pkt))
{
return BFD_UDP_ERROR_BAD;
return BFD_UDP_ERROR_BAD;
}
BFD_DBG ("BFD session found, bs_idx=%u", bs->bs_idx);
- if (!bfd_verify_pkt_session (pkt, b->current_length, bs))
+ if (!bfd_verify_pkt_auth (pkt, b->current_length, bs))
{
+ BFD_ERR ("Packet verification failed, dropping packet");
return BFD_UDP_ERROR_BAD;
}
bfd_udp_error_t err;
*udp = NULL;
return;
}
- /* FIXME skip extra headers when searching for UDP ? */
if ((*ip6)->protocol != IP_PROTOCOL_UDP)
{
BFD_ERR ("Unexpected protocol in IPv6 header '%u', expected '%u' (== "
- "IP_PROTOCOL_UDP)" (*ip6)->protocol, IP_PROTOCOL_UDP);
+ "IP_PROTOCOL_UDP)", (*ip6)->protocol, IP_PROTOCOL_UDP);
*ip6 = NULL;
*udp = NULL;
return;
ip6->hop_limit, expected_hop_limit);
return BFD_UDP_ERROR_BAD;
}
- if (clib_net_to_host_u16 (udp->src_port) < 49152 ||
- clib_net_to_host_u16 (udp->src_port) > 65535)
+ if (clib_net_to_host_u16 (udp->src_port) < 49152)
{
BFD_ERR ("Invalid UDP src port %u, out of range <49152,65535>",
udp->src_port);
BFD_ERR ("Couldn't find ip6 or udp header");
return BFD_UDP_ERROR_BAD;
}
+ const u32 udp_payload_length = udp->length - sizeof (*udp);
+ if (pkt->head.length > udp_payload_length)
+ {
+ BFD_ERR
+ ("BFD packet length is larger than udp payload length (%u > %u)",
+ pkt->head.length, udp_payload_length);
+ return BFD_UDP_ERROR_BAD;
+ }
if (!bfd_verify_pkt_common (pkt))
{
return BFD_UDP_ERROR_BAD;
key.peer_addr.ip6.as_u64[0] = ip6->src_address.as_u64[0];
key.peer_addr.ip6.as_u64[1] = ip6->src_address.as_u64[1];
BFD_DBG ("Looking up BFD session using key (sw_if_index=%u, local=%U, "
- "peer=%U)", key.sw_if_index, format_ip6_address,
- &key.local_addr, format_ip6_address, &key.peer_addr);
+ "peer=%U)",
+ key.sw_if_index, format_ip6_address, &key.local_addr,
+ format_ip6_address, &key.peer_addr);
bs = bfd_lookup_session (&bfd_udp_main, &key);
}
if (!bs)
return BFD_UDP_ERROR_BAD;
}
BFD_DBG ("BFD session found, bs_idx=%u", bs->bs_idx);
- if (!bfd_verify_pkt_session (pkt, b->current_length, bs))
+ if (!bfd_verify_pkt_auth (pkt, b->current_length, bs))
{
+ BFD_ERR ("Packet verification failed, dropping packet");
return BFD_UDP_ERROR_BAD;
}
bfd_udp_error_t err;
const bfd_pkt_t *pkt = vlib_buffer_get_current (b0);
if (bfd_pkt_get_poll (pkt))
{
- bfd_send_final (vm, b0, bs);
+ bfd_init_final_control_frame (vm, b0, bs);
if (is_ipv6)
{
vlib_node_increment_counter (vm, bfd_udp6_input_node.index,
Code Review / vpp.git / blobdiff