blob: 48fcdefd91f17db72aa5fa060b9f7f2549037212 [file] [log] [blame]
/*
*------------------------------------------------------------------
* bfd_api.c - bfd api
*
* Copyright (c) 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.
*------------------------------------------------------------------
*/
/**
* @file
* @brief BFD binary API implementation
*/
#include <vnet/vnet.h>
#include <vlibmemory/api.h>
#include <vnet/interface.h>
#include <vnet/api_errno.h>
#include <vnet/bfd/bfd_main.h>
#include <vnet/bfd/bfd_api.h>
#include <vnet/vnet_msg_enum.h>
#define vl_typedefs /* define message structures */
#include <vnet/vnet_all_api_h.h>
#undef vl_typedefs
#define vl_endianfun /* define message structures */
#include <vnet/vnet_all_api_h.h>
#undef vl_endianfun
/* instantiate all the print functions we know about */
#define vl_print(handle, ...) vlib_cli_output (handle, __VA_ARGS__)
#define vl_printfun
#include <vnet/vnet_all_api_h.h>
#undef vl_printfun
#include <vlibapi/api_helper_macros.h>
#define foreach_vpe_api_msg \
_ (BFD_UDP_ADD, bfd_udp_add) \
_ (BFD_UDP_MOD, bfd_udp_mod) \
_ (BFD_UDP_DEL, bfd_udp_del) \
_ (BFD_UDP_SESSION_DUMP, bfd_udp_session_dump) \
_ (BFD_UDP_SESSION_SET_FLAGS, bfd_udp_session_set_flags) \
_ (WANT_BFD_EVENTS, want_bfd_events) \
_ (BFD_AUTH_SET_KEY, bfd_auth_set_key) \
_ (BFD_AUTH_DEL_KEY, bfd_auth_del_key) \
_ (BFD_AUTH_KEYS_DUMP, bfd_auth_keys_dump) \
_ (BFD_UDP_AUTH_ACTIVATE, bfd_udp_auth_activate) \
_ (BFD_UDP_AUTH_DEACTIVATE, bfd_udp_auth_deactivate) \
_ (BFD_UDP_SET_ECHO_SOURCE, bfd_udp_set_echo_source) \
_ (BFD_UDP_DEL_ECHO_SOURCE, bfd_udp_del_echo_source)
pub_sub_handler (bfd_events, BFD_EVENTS);
#define BFD_UDP_API_PARAM_COMMON_CODE \
ip46_address_t local_addr; \
memset (&local_addr, 0, sizeof (local_addr)); \
ip46_address_t peer_addr; \
memset (&peer_addr, 0, sizeof (peer_addr)); \
if (mp->is_ipv6) \
{ \
clib_memcpy (&local_addr.ip6, mp->local_addr, sizeof (local_addr.ip6)); \
clib_memcpy (&peer_addr.ip6, mp->peer_addr, sizeof (peer_addr.ip6)); \
} \
else \
{ \
clib_memcpy (&local_addr.ip4, mp->local_addr, sizeof (local_addr.ip4)); \
clib_memcpy (&peer_addr.ip4, mp->peer_addr, sizeof (peer_addr.ip4)); \
}
#define BFD_UDP_API_PARAM_FROM_MP(mp) \
clib_net_to_host_u32 (mp->sw_if_index), &local_addr, &peer_addr
static void
vl_api_bfd_udp_add_t_handler (vl_api_bfd_udp_add_t * mp)
{
vl_api_bfd_udp_add_reply_t *rmp;
int rv;
VALIDATE_SW_IF_INDEX (mp);
BFD_UDP_API_PARAM_COMMON_CODE;
rv = bfd_udp_add_session (BFD_UDP_API_PARAM_FROM_MP (mp),
clib_net_to_host_u32 (mp->desired_min_tx),
clib_net_to_host_u32 (mp->required_min_rx),
mp->detect_mult, mp->is_authenticated,
clib_net_to_host_u32 (mp->conf_key_id),
mp->bfd_key_id);
BAD_SW_IF_INDEX_LABEL;
REPLY_MACRO (VL_API_BFD_UDP_ADD_REPLY);
}
static void
vl_api_bfd_udp_mod_t_handler (vl_api_bfd_udp_mod_t * mp)
{
vl_api_bfd_udp_mod_reply_t *rmp;
int rv;
VALIDATE_SW_IF_INDEX (mp);
BFD_UDP_API_PARAM_COMMON_CODE;
rv = bfd_udp_mod_session (BFD_UDP_API_PARAM_FROM_MP (mp),
clib_net_to_host_u32 (mp->desired_min_tx),
clib_net_to_host_u32 (mp->required_min_rx),
mp->detect_mult);
BAD_SW_IF_INDEX_LABEL;
REPLY_MACRO (VL_API_BFD_UDP_MOD_REPLY);
}
static void
vl_api_bfd_udp_del_t_handler (vl_api_bfd_udp_del_t * mp)
{
vl_api_bfd_udp_del_reply_t *rmp;
int rv;
VALIDATE_SW_IF_INDEX (mp);
BFD_UDP_API_PARAM_COMMON_CODE;
rv = bfd_udp_del_session (BFD_UDP_API_PARAM_FROM_MP (mp));
BAD_SW_IF_INDEX_LABEL;
REPLY_MACRO (VL_API_BFD_UDP_DEL_REPLY);
}
void
send_bfd_udp_session_details (vl_api_registration_t * reg, u32 context,
bfd_session_t * bs)
{
if (bs->transport != BFD_TRANSPORT_UDP4 &&
bs->transport != BFD_TRANSPORT_UDP6)
{
return;
}
vl_api_bfd_udp_session_details_t *mp = vl_msg_api_alloc (sizeof (*mp));
memset (mp, 0, sizeof (*mp));
mp->_vl_msg_id = ntohs (VL_API_BFD_UDP_SESSION_DETAILS);
mp->context = context;
mp->state = bs->local_state;
bfd_udp_session_t *bus = &bs->udp;
bfd_udp_key_t *key = &bus->key;
mp->sw_if_index = clib_host_to_net_u32 (key->sw_if_index);
mp->is_ipv6 = !(ip46_address_is_ip4 (&key->local_addr));
if ((!bs->auth.is_delayed && bs->auth.curr_key) ||
(bs->auth.is_delayed && bs->auth.next_key))
{
mp->is_authenticated = 1;
}
if (bs->auth.is_delayed && bs->auth.next_key)
{
mp->bfd_key_id = bs->auth.next_bfd_key_id;
mp->conf_key_id = clib_host_to_net_u32 (bs->auth.next_key->conf_key_id);
}
else if (!bs->auth.is_delayed && bs->auth.curr_key)
{
mp->bfd_key_id = bs->auth.curr_bfd_key_id;
mp->conf_key_id = clib_host_to_net_u32 (bs->auth.curr_key->conf_key_id);
}
if (mp->is_ipv6)
{
clib_memcpy (mp->local_addr, &key->local_addr,
sizeof (key->local_addr));
clib_memcpy (mp->peer_addr, &key->peer_addr, sizeof (key->peer_addr));
}
else
{
clib_memcpy (mp->local_addr, key->local_addr.ip4.data,
sizeof (key->local_addr.ip4.data));
clib_memcpy (mp->peer_addr, key->peer_addr.ip4.data,
sizeof (key->peer_addr.ip4.data));
}
mp->required_min_rx =
clib_host_to_net_u32 (bs->config_required_min_rx_usec);
mp->desired_min_tx = clib_host_to_net_u32 (bs->config_desired_min_tx_usec);
mp->detect_mult = bs->local_detect_mult;
vl_api_send_msg (reg, (u8 *) mp);
}
void
bfd_event (bfd_main_t * bm, bfd_session_t * bs)
{
vpe_api_main_t *vam = &vpe_api_main;
vpe_client_registration_t *reg;
vl_api_registration_t *vl_reg;
/* *INDENT-OFF* */
pool_foreach (reg, vam->bfd_events_registrations, ({
vl_reg = vl_api_client_index_to_registration (reg->client_index);
if (vl_reg)
{
switch (bs->transport)
{
case BFD_TRANSPORT_UDP4:
/* fallthrough */
case BFD_TRANSPORT_UDP6:
send_bfd_udp_session_details (vl_reg, 0, bs);
}
}
}));
/* *INDENT-ON* */
}
static void
vl_api_bfd_udp_session_dump_t_handler (vl_api_bfd_udp_session_dump_t * mp)
{
vl_api_registration_t *reg;
reg = vl_api_client_index_to_registration (mp->client_index);
if (!reg)
return;
bfd_session_t *bs = NULL;
/* *INDENT-OFF* */
pool_foreach (bs, bfd_main.sessions, ({
if (bs->transport == BFD_TRANSPORT_UDP4 ||
bs->transport == BFD_TRANSPORT_UDP6)
send_bfd_udp_session_details (reg, mp->context, bs);
}));
/* *INDENT-ON* */
}
static void
vl_api_bfd_udp_session_set_flags_t_handler (vl_api_bfd_udp_session_set_flags_t
* mp)
{
vl_api_bfd_udp_session_set_flags_reply_t *rmp;
int rv;
BFD_UDP_API_PARAM_COMMON_CODE;
rv = bfd_udp_session_set_flags (BFD_UDP_API_PARAM_FROM_MP (mp),
mp->admin_up_down);
REPLY_MACRO (VL_API_BFD_UDP_SESSION_SET_FLAGS_REPLY);
}
static void
vl_api_bfd_auth_set_key_t_handler (vl_api_bfd_auth_set_key_t * mp)
{
vl_api_bfd_auth_set_key_reply_t *rmp;
int rv = bfd_auth_set_key (clib_net_to_host_u32 (mp->conf_key_id),
mp->auth_type, mp->key_len, mp->key);
REPLY_MACRO (VL_API_BFD_AUTH_SET_KEY_REPLY);
}
static void
vl_api_bfd_auth_del_key_t_handler (vl_api_bfd_auth_del_key_t * mp)
{
vl_api_bfd_auth_del_key_reply_t *rmp;
int rv = bfd_auth_del_key (clib_net_to_host_u32 (mp->conf_key_id));
REPLY_MACRO (VL_API_BFD_AUTH_DEL_KEY_REPLY);
}
static void
vl_api_bfd_auth_keys_dump_t_handler (vl_api_bfd_auth_keys_dump_t * mp)
{
vl_api_registration_t *reg;
reg = vl_api_client_index_to_registration (mp->client_index);
if (!reg)
return;
bfd_auth_key_t *key = NULL;
vl_api_bfd_auth_keys_details_t *rmp = NULL;
/* *INDENT-OFF* */
pool_foreach (key, bfd_main.auth_keys, ({
rmp = vl_msg_api_alloc (sizeof (*rmp));
memset (rmp, 0, sizeof (*rmp));
rmp->_vl_msg_id = ntohs (VL_API_BFD_AUTH_KEYS_DETAILS);
rmp->context = mp->context;
rmp->conf_key_id = clib_host_to_net_u32 (key->conf_key_id);
rmp->auth_type = key->auth_type;
rmp->use_count = clib_host_to_net_u32 (key->use_count);
vl_api_send_msg (reg, (u8 *)&rmp);
}));
/* *INDENT-ON* */
}
static void
vl_api_bfd_udp_auth_activate_t_handler (vl_api_bfd_udp_auth_activate_t * mp)
{
vl_api_bfd_udp_auth_activate_reply_t *rmp;
int rv;
VALIDATE_SW_IF_INDEX (mp);
BFD_UDP_API_PARAM_COMMON_CODE;
rv = bfd_udp_auth_activate (BFD_UDP_API_PARAM_FROM_MP (mp),
clib_net_to_host_u32 (mp->conf_key_id),
mp->bfd_key_id, mp->is_delayed);
BAD_SW_IF_INDEX_LABEL;
REPLY_MACRO (VL_API_BFD_UDP_AUTH_ACTIVATE_REPLY);
}
static void
vl_api_bfd_udp_auth_deactivate_t_handler (vl_api_bfd_udp_auth_deactivate_t *
mp)
{
vl_api_bfd_udp_auth_deactivate_reply_t *rmp;
int rv;
VALIDATE_SW_IF_INDEX (mp);
BFD_UDP_API_PARAM_COMMON_CODE;
rv =
bfd_udp_auth_deactivate (BFD_UDP_API_PARAM_FROM_MP (mp), mp->is_delayed);
BAD_SW_IF_INDEX_LABEL;
REPLY_MACRO (VL_API_BFD_UDP_AUTH_DEACTIVATE_REPLY);
}
static void
vl_api_bfd_udp_set_echo_source_t_handler (vl_api_bfd_udp_set_echo_source_t *
mp)
{
vl_api_bfd_udp_set_echo_source_reply_t *rmp;
int rv;
VALIDATE_SW_IF_INDEX (mp);
rv = bfd_udp_set_echo_source (clib_net_to_host_u32 (mp->sw_if_index));
BAD_SW_IF_INDEX_LABEL;
REPLY_MACRO (VL_API_BFD_UDP_SET_ECHO_SOURCE_REPLY);
}
static void
vl_api_bfd_udp_del_echo_source_t_handler (vl_api_bfd_udp_del_echo_source_t *
mp)
{
vl_api_bfd_udp_del_echo_source_reply_t *rmp;
int rv;
rv = bfd_udp_del_echo_source ();
REPLY_MACRO (VL_API_BFD_UDP_DEL_ECHO_SOURCE_REPLY);
}
/*
* bfd_api_hookup
* Add vpe's API message handlers to the table.
* vlib has alread mapped shared memory and
* added the client registration handlers.
* See .../vlib-api/vlibmemory/memclnt_vlib.c:memclnt_process()
*/
#define vl_msg_name_crc_list
#include <vnet/vnet_all_api_h.h>
#undef vl_msg_name_crc_list
static void
setup_message_id_table (api_main_t * am)
{
#define _(id, n, crc) vl_msg_api_add_msg_name_crc (am, #n "_" #crc, id);
foreach_vl_msg_name_crc_bfd;
#undef _
}
static clib_error_t *
bfd_api_hookup (vlib_main_t * vm)
{
api_main_t *am = &api_main;
#define _(N, n) \
vl_msg_api_set_handlers (VL_API_##N, #n, vl_api_##n##_t_handler, \
vl_noop_handler, vl_api_##n##_t_endian, \
vl_api_##n##_t_print, sizeof (vl_api_##n##_t), 1);
foreach_vpe_api_msg;
#undef _
/*
* Set up the (msg_name, crc, message-id) table
*/
setup_message_id_table (am);
return 0;
}
VLIB_API_INIT_FUNCTION (bfd_api_hookup);
/*
* fd.io coding-style-patch-verification: ON
*
* Local Variables:
* eval: (c-set-style "gnu")
* End:
*/