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/*
* 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.
*/
/*
*------------------------------------------------------------------
* vxlan_gpe_api.c - iOAM VxLAN-GPE related APIs to create
* and maintain profiles
*------------------------------------------------------------------
*/
#include <vnet/vnet.h>
#include <vnet/plugin/plugin.h>
#include <ioam/lib-vxlan-gpe/vxlan_gpe_ioam.h>
#include <vlibapi/api_helper_macros.h>
#include <vlibapi/api.h>
#include <vlibmemory/api.h>
#include <vnet/format_fns.h>
#include <vnet/ip/ip_types_api.h>
#include <vnet/udp/udp_local.h>
/* define message IDs */
#include <ioam/lib-vxlan-gpe/ioam_vxlan_gpe.api_enum.h>
#include <ioam/lib-vxlan-gpe/ioam_vxlan_gpe.api_types.h>
static void vl_api_vxlan_gpe_ioam_enable_t_handler
(vl_api_vxlan_gpe_ioam_enable_t * mp)
{
int rv = 0;
vl_api_vxlan_gpe_ioam_enable_reply_t *rmp;
clib_error_t *error;
/* Ignoring the profile id as currently a single profile
* is supported */
error =
vxlan_gpe_ioam_enable (mp->trace_enable, mp->pow_enable, mp->trace_ppc);
if (error)
{
clib_error_report (error);
rv = clib_error_get_code (error);
}
REPLY_MACRO (VL_API_VXLAN_GPE_IOAM_ENABLE_REPLY);
}
static void vl_api_vxlan_gpe_ioam_disable_t_handler
(vl_api_vxlan_gpe_ioam_disable_t * mp)
{
int rv = 0;
vl_api_vxlan_gpe_ioam_disable_reply_t *rmp;
clib_error_t *error;
/* Ignoring the profile id as currently a single profile
* is supported */
error = vxlan_gpe_ioam_disable (0, 0, 0);
if (error)
{
clib_error_report (error);
rv = clib_error_get_code (error);
}
REPLY_MACRO (VL_API_VXLAN_GPE_IOAM_DISABLE_REPLY);
}
static void vl_api_vxlan_gpe_ioam_vni_enable_t_handler
(vl_api_vxlan_gpe_ioam_vni_enable_t * mp)
{
int rv = 0;
vl_api_vxlan_gpe_ioam_vni_enable_reply_t *rmp;
clib_error_t *error;
vxlan4_gpe_tunnel_key_t key4;
uword *p = NULL;
vxlan_gpe_main_t *gm = &vxlan_gpe_main;
vxlan_gpe_tunnel_t *t = 0;
vxlan_gpe_ioam_main_t *hm = &vxlan_gpe_ioam_main;
u32 vni;
if (clib_net_to_host_u32 (mp->local.af) == ADDRESS_IP4 &&
clib_net_to_host_u32 (mp->remote.af) == ADDRESS_IP4)
{
clib_memcpy (&key4.local, &mp->local.un.ip4, sizeof (key4.local));
clib_memcpy (&key4.remote, &mp->remote.un.ip4, sizeof (key4.remote));
vni = clib_net_to_host_u32 (mp->vni);
key4.vni = clib_host_to_net_u32 (vni << 8);
key4.port = clib_host_to_net_u16 (UDP_DST_PORT_VXLAN_GPE);
p = hash_get_mem (gm->vxlan4_gpe_tunnel_by_key, &key4);
}
else
{
return;
}
if (!p)
return;
t = pool_elt_at_index (gm->tunnels, p[0]);
error = vxlan_gpe_ioam_set (t, hm->has_trace_option,
hm->has_pot_option,
hm->has_ppc_option, 0 /* is_ipv6 */ );
if (error)
{
clib_error_report (error);
rv = clib_error_get_code (error);
}
REPLY_MACRO (VL_API_VXLAN_GPE_IOAM_VNI_ENABLE_REPLY);
}
static void vl_api_vxlan_gpe_ioam_vni_disable_t_handler
(vl_api_vxlan_gpe_ioam_vni_disable_t * mp)
{
int rv = 0;
vl_api_vxlan_gpe_ioam_vni_enable_reply_t *rmp;
clib_error_t *error;
vxlan4_gpe_tunnel_key_t key4;
uword *p = NULL;
vxlan_gpe_main_t *gm = &vxlan_gpe_main;
vxlan_gpe_tunnel_t *t = 0;
u32 vni;
if (clib_net_to_host_u32 (mp->local.af) == ADDRESS_IP4 &&
clib_net_to_host_u32 (mp->remote.af) == ADDRESS_IP4)
{
clib_memcpy (&key4.local, &mp->local, sizeof (key4.local));
clib_memcpy (&key4.remote, &mp->remote, sizeof (key4.remote));
vni = clib_net_to_host_u32 (mp->vni);
key4.vni = clib_host_to_net_u32 (vni << 8);
key4.port = clib_host_to_net_u16 (UDP_DST_PORT_VXLAN_GPE);
p = hash_get_mem (gm->vxlan4_gpe_tunnel_by_key, &key4);
}
else
{
return;
}
if (!p)
return;
t = pool_elt_at_index (gm->tunnels, p[0]);
error = vxlan_gpe_ioam_clear (t, 0, 0, 0, 0);
if (error)
{
clib_error_report (error);
rv = clib_error_get_code (error);
}
REPLY_MACRO (VL_API_VXLAN_GPE_IOAM_VNI_DISABLE_REPLY);
}
static void vl_api_vxlan_gpe_ioam_transit_enable_t_handler
(vl_api_vxlan_gpe_ioam_transit_enable_t * mp)
{
int rv = 0;
vl_api_vxlan_gpe_ioam_transit_enable_reply_t *rmp;
vxlan_gpe_ioam_main_t *sm = &vxlan_gpe_ioam_main;
ip46_address_t dst_addr;
ip_address_decode (&mp->dst_addr, &dst_addr);
bool is_ip6 = clib_net_to_host_u32 (mp->dst_addr.af) == ADDRESS_IP6;
rv = vxlan_gpe_enable_disable_ioam_for_dest (sm->vlib_main,
dst_addr,
ntohl (mp->outer_fib_index),
is_ip6, 1 /* is_add */ );
REPLY_MACRO (VL_API_VXLAN_GPE_IOAM_TRANSIT_ENABLE_REPLY);
}
static void vl_api_vxlan_gpe_ioam_transit_disable_t_handler
(vl_api_vxlan_gpe_ioam_transit_disable_t * mp)
{
int rv = 0;
vl_api_vxlan_gpe_ioam_transit_disable_reply_t *rmp;
vxlan_gpe_ioam_main_t *sm = &vxlan_gpe_ioam_main;
ip46_address_t dst_addr;
ip_address_decode (&mp->dst_addr, &dst_addr);
bool is_ip6 = clib_net_to_host_u32 (mp->dst_addr.af) == ADDRESS_IP6;
rv = vxlan_gpe_ioam_disable_for_dest (sm->vlib_main,
dst_addr,
ntohl (mp->outer_fib_index), is_ip6);
REPLY_MACRO (VL_API_VXLAN_GPE_IOAM_TRANSIT_DISABLE_REPLY);
}
#include <ioam/lib-vxlan-gpe/ioam_vxlan_gpe.api.c>
static clib_error_t *
ioam_vxlan_gpe_init (vlib_main_t * vm)
{
vxlan_gpe_ioam_main_t *sm = &vxlan_gpe_ioam_main;
u32 encap_node_index = vxlan_gpe_encap_ioam_v4_node.index;
u32 decap_node_index = vxlan_gpe_decap_ioam_v4_node.index;
vlib_node_t *vxlan_gpe_encap_node = NULL;
vlib_node_t *vxlan_gpe_decap_node = NULL;
uword next_node = 0;
sm->vlib_main = vm;
sm->vnet_main = vnet_get_main ();
sm->unix_time_0 = (u32) time (0); /* Store starting time */
sm->vlib_time_0 = vlib_time_now (vm);
/* Ask for a correctly-sized block of API message decode slots */
sm->msg_id_base = setup_message_id_table ();
/* Hook the ioam-encap node to vxlan-gpe-encap */
vxlan_gpe_encap_node = vlib_get_node_by_name (vm, (u8 *) "vxlan-gpe-encap");
sm->encap_v4_next_node =
vlib_node_add_next (vm, vxlan_gpe_encap_node->index, encap_node_index);
vxlan_gpe_decap_node =
vlib_get_node_by_name (vm, (u8 *) "vxlan4-gpe-input");
next_node =
vlib_node_add_next (vm, vxlan_gpe_decap_node->index, decap_node_index);
vxlan_gpe_register_decap_protocol (VXLAN_GPE_PROTOCOL_IOAM, next_node);
vec_new (vxlan_gpe_ioam_sw_interface_t, pool_elts (sm->sw_interfaces));
sm->dst_by_ip4 = hash_create_mem (0, sizeof (fib_prefix_t), sizeof (uword));
sm->dst_by_ip6 = hash_create_mem (0, sizeof (fib_prefix_t), sizeof (uword));
vxlan_gpe_ioam_interface_init ();
return 0;
}
VLIB_INIT_FUNCTION (ioam_vxlan_gpe_init);
/*
* fd.io coding-style-patch-verification: ON
*
* Local Variables:
* eval: (c-set-style "gnu")
* End:
*/
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