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vpp/plugins/ioam-plugin/ioam/lib-vxlan-gpe/vxlan_gpe_api.c
AkshayaNadahalli e4e9fbbb7c Merging all ioam plugin libraries to single library 
Change-Id: I33a646ba45848c7400df4271e4933e28e62c9ad7
Signed-off-by: AkshayaNadahalli <anadahal@cisco.com>
2016-12-24 14:11:36 +00:00

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11 KiB
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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.h>
#include <vlibmemory/api.h>
#include <vlibsocket/api.h>
/* define message IDs */
#include <ioam/lib-vxlan-gpe/vxlan_gpe_msg_enum.h>
/* define message structures */
#define vl_typedefs
#include <ioam/lib-vxlan-gpe/vxlan_gpe_all_api_h.h>
#undef vl_typedefs
/* define generated endian-swappers */
#define vl_endianfun
#include <ioam/lib-vxlan-gpe/vxlan_gpe_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 <ioam/lib-vxlan-gpe/vxlan_gpe_all_api_h.h>
#undef vl_printfun
/* Get the API version number */
#define vl_api_version(n,v) static u32 api_version=(v);
#include <ioam/lib-vxlan-gpe/vxlan_gpe_all_api_h.h>
#undef vl_api_version
/*
* A handy macro to set up a message reply.
* Assumes that the following variables are available:
* mp - pointer to request message
* rmp - pointer to reply message type
* rv - return value
*/
#define VXLAN_GPE_REPLY_MACRO(t) \
do { \
unix_shared_memory_queue_t * q = \
vl_api_client_index_to_input_queue (mp->client_index); \
if (!q) \
return; \
\
rmp = vl_msg_api_alloc (sizeof (*rmp)); \
rmp->_vl_msg_id = ntohs((t)+sm->msg_id_base); \
rmp->context = mp->context; \
rmp->retval = ntohl(rv); \
\
vl_msg_api_send_shmem (q, (u8 *)&rmp); \
} while(0);
/* *INDENT-OFF* */
#define VXLAN_GPE_REPLY_MACRO2(t, body) \
do { \
unix_shared_memory_queue_t * q; \
rv = vl_msg_api_pd_handler (mp, rv); \
q = vl_api_client_index_to_input_queue (mp->client_index); \
if (!q) \
return; \
\
rmp = vl_msg_api_alloc (sizeof (*rmp)); \
rmp->_vl_msg_id = ntohs((t)); \
rmp->context = mp->context; \
rmp->retval = ntohl(rv); \
do {body;} while (0); \
vl_msg_api_send_shmem (q, (u8 *)&rmp); \
} while(0);
/* *INDENT-ON* */
/* List of message types that this plugin understands */
#define foreach_vxlan_gpe_plugin_api_msg \
_(VXLAN_GPE_IOAM_ENABLE, vxlan_gpe_ioam_enable) \
_(VXLAN_GPE_IOAM_DISABLE, vxlan_gpe_ioam_disable) \
_(VXLAN_GPE_IOAM_VNI_ENABLE, vxlan_gpe_ioam_vni_enable) \
_(VXLAN_GPE_IOAM_VNI_DISABLE, vxlan_gpe_ioam_vni_disable) \
_(VXLAN_GPE_IOAM_TRANSIT_ENABLE, vxlan_gpe_ioam_transit_enable) \
_(VXLAN_GPE_IOAM_TRANSIT_DISABLE, vxlan_gpe_ioam_transit_disable) \
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;
vxlan_gpe_ioam_main_t *sm = &vxlan_gpe_ioam_main;
/* 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);
}
VXLAN_GPE_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;
vxlan_gpe_ioam_main_t *sm = &vxlan_gpe_ioam_main;
/* 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);
}
VXLAN_GPE_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;
vxlan_gpe_ioam_main_t *sm = &vxlan_gpe_ioam_main;
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 (!mp->is_ipv6)
{
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.pad = 0;
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, mp->is_ipv6);
if (error)
{
clib_error_report (error);
rv = clib_error_get_code (error);
}
VXLAN_GPE_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;
vxlan_gpe_ioam_main_t *sm = &vxlan_gpe_ioam_main;
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 (!mp->is_ipv6)
{
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.pad = 0;
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);
}
VXLAN_GPE_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;
memset (&dst_addr.ip4, 0, sizeof (dst_addr.ip4));
if (!mp->is_ipv6)
{
clib_memcpy (&dst_addr.ip4, &mp->dst_addr, sizeof (dst_addr.ip4));
}
rv = vxlan_gpe_enable_disable_ioam_for_dest (sm->vlib_main,
dst_addr,
ntohl (mp->outer_fib_index),
mp->is_ipv6 ? 0 : 1,
1 /* is_add */ );
VXLAN_GPE_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;
memset (&dst_addr.ip4, 0, sizeof (dst_addr.ip4));
if (!mp->is_ipv6)
{
clib_memcpy (&dst_addr.ip4, &mp->dst_addr, sizeof (dst_addr.ip4));
}
rv = vxlan_gpe_ioam_disable_for_dest (sm->vlib_main,
dst_addr,
ntohl (mp->outer_fib_index),
mp->is_ipv6 ? 0 : 1);
VXLAN_GPE_REPLY_MACRO (VL_API_VXLAN_GPE_IOAM_TRANSIT_DISABLE_REPLY);
}
/* Set up the API message handling tables */
static clib_error_t *
vxlan_gpe_plugin_api_hookup (vlib_main_t * vm)
{
vxlan_gpe_ioam_main_t *sm = &vxlan_gpe_ioam_main;
#define _(N,n) \
vl_msg_api_set_handlers((VL_API_##N + sm->msg_id_base), \
#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_vxlan_gpe_plugin_api_msg;
#undef _
return 0;
}
static clib_error_t *
vxlan_gpe_init (vlib_main_t * vm)
{
vxlan_gpe_ioam_main_t *sm = &vxlan_gpe_ioam_main;
clib_error_t *error = 0;
u8 *name;
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);
name = format (0, "ioam_vxlan_gpe_%08x%c", api_version, 0);
/* Ask for a correctly-sized block of API message decode slots */
sm->msg_id_base = vl_msg_api_get_msg_ids
((char *) name, VL_MSG_FIRST_AVAILABLE);
error = vxlan_gpe_plugin_api_hookup (vm);
/* 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 ();
vec_free (name);
return error;
}
VLIB_INIT_FUNCTION (vxlan_gpe_init);
/*
* fd.io coding-style-patch-verification: ON
*
* Local Variables:
* eval: (c-set-style "gnu")
* End:
*/
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