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/*
* Copyright (C) 2018 Vmware
* Vishal Dhingra
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the Free
* Software Foundation; either version 2 of the License, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; see the file COPYING; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <zebra.h>
#include "northbound.h"
#include "libfrr.h"
#include "vrf.h"
#include "lib_errors.h"
#include "routing_nb.h"
DEFINE_HOOK(routing_conf_event, (struct nb_cb_create_args *args), (args));
/*
* XPath: /frr-routing:routing/control-plane-protocols/control-plane-protocol
*/
int routing_control_plane_protocols_control_plane_protocol_create(
struct nb_cb_create_args *args)
{
struct vrf *vrf;
const char *vrfname;
switch (args->event) {
case NB_EV_VALIDATE:
if (hook_call(routing_conf_event, args))
return NB_ERR_VALIDATION;
break;
case NB_EV_PREPARE:
case NB_EV_ABORT:
break;
case NB_EV_APPLY:
/*
* If the daemon relies on the VRF pointer stored in this
* dnode, then it should register the dependency between this
* module and the VRF module using
* routing_control_plane_protocols_register_vrf_dependency.
* If such dependency is not registered, then nothing is
* stored in the dnode. If the dependency is registered,
* find the vrf and store the pointer.
*/
if (nb_node_has_dependency(args->dnode->schema->priv)) {
vrfname = yang_dnode_get_string(args->dnode, "./vrf");
vrf = vrf_lookup_by_name(vrfname);
assert(vrf);
nb_running_set_entry(args->dnode, vrf);
}
break;
};
return NB_OK;
}
int routing_control_plane_protocols_control_plane_protocol_destroy(
struct nb_cb_destroy_args *args)
{
if (args->event != NB_EV_APPLY)
return NB_OK;
/*
* If dependency on VRF module is registered, then VRF
* pointer was stored and must be cleared.
*/
if (nb_node_has_dependency(args->dnode->schema->priv))
nb_running_unset_entry(args->dnode);
return NB_OK;
}
static void vrf_to_control_plane_protocol(const struct lyd_node *dnode,
char *xpath)
{
const char *vrf;
vrf = yang_dnode_get_string(dnode, "./name");
snprintf(xpath, XPATH_MAXLEN, FRR_ROUTING_KEY_XPATH_VRF, vrf);
}
static void control_plane_protocol_to_vrf(const struct lyd_node *dnode,
char *xpath)
{
const char *vrf;
vrf = yang_dnode_get_string(dnode, "./vrf");
snprintf(xpath, XPATH_MAXLEN, FRR_VRF_KEY_XPATH, vrf);
}
void routing_control_plane_protocols_register_vrf_dependency(void)
{
struct nb_dependency_callbacks cbs;
cbs.get_dependant_xpath = vrf_to_control_plane_protocol;
cbs.get_dependency_xpath = control_plane_protocol_to_vrf;
nb_node_set_dependency_cbs(FRR_VRF_XPATH, FRR_ROUTING_XPATH, &cbs);
}
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