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bgpd: move router bgp nb callback

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move `router bgp` nb callback at `bgp` node level
to have access to bgp context at neighbor and peer-group
level and align create/destroy callbacks call during
no router bgp.

Earlier `no router bgp` is performed first global destroy
callback is called which essentially removes `bgp context`
then it calls to remove (parallel nodes) neighbor and peer-group
which does not have access to bgp context.
Moving router bgp at bgp solves this destroy callback ordering issue.

Signed-off-by: Chirag Shah <chirag@nvidia.com>
This commit is contained in:
Chirag Shah 2020-09-20 08:13:53 -07:00
parent 87ce25646b
commit 5e42cb2fb0
5 changed files with 15 additions and 20 deletions
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6
bgpd/bgp_nb.c
View File

@ -27,11 +27,11 @@ const struct frr_yang_module_info frr_bgp_info = {
.name = "frr-bgp",
.nodes = {
{
.xpath = "/frr-routing:routing/control-plane-protocols/control-plane-protocol/frr-bgp:bgp/global",
.xpath = "/frr-routing:routing/control-plane-protocols/control-plane-protocol/frr-bgp:bgp",
.cbs = {
.cli_show = cli_show_router_bgp,
.create = bgp_global_create,
.destroy = bgp_global_destroy,
.create = bgp_create,
.destroy = bgp_destroy,
}
},
{

4
bgpd/bgp_nb.h
View File

@ -26,8 +26,8 @@
extern const struct frr_yang_module_info frr_bgp_info;
/* prototypes */
int bgp_global_create(struct nb_cb_create_args *args);
int bgp_global_destroy(struct nb_cb_destroy_args *args);
int bgp_create(struct nb_cb_create_args *args);
int bgp_destroy(struct nb_cb_destroy_args *args);
int bgp_global_local_as_modify(struct nb_cb_modify_args *args);
int bgp_global_router_id_modify(struct nb_cb_modify_args *args);
int bgp_global_router_id_destroy(struct nb_cb_destroy_args *args);

21
bgpd/bgp_nb_config.c
View File

@ -60,13 +60,11 @@ int routing_control_plane_protocols_name_validate(
/*
* XPath:
* /frr-routing:routing/control-plane-protocols/control-plane-protocol/frr-bgp:bgp/global
* /frr-routing:routing/control-plane-protocols/control-plane-protocol/frr-bgp:bgp
*/
int bgp_global_create(struct nb_cb_create_args *args)
int bgp_create(struct nb_cb_create_args *args)
{
const struct lyd_node *vrf_dnode;
const struct lyd_node *bgp_dnode;
struct bgp *bgp;
struct vrf *vrf;
const char *name = NULL;
@ -95,10 +93,10 @@ int bgp_global_create(struct nb_cb_create_args *args)
inst_type = BGP_INSTANCE_TYPE_VRF;
}
as = yang_dnode_get_uint32(args->dnode, "./local-as");
as = yang_dnode_get_uint32(args->dnode, "./global/local-as");
is_view_inst = yang_dnode_get_bool(args->dnode,
"./instance-type-view");
is_view_inst = yang_dnode_get_bool(
args->dnode, "./global/instance-type-view");
if (is_view_inst)
inst_type = BGP_INSTANCE_TYPE_VIEW;
@ -127,18 +125,16 @@ int bgp_global_create(struct nb_cb_create_args *args)
UNSET_FLAG(bgp->vrf_flags, BGP_VRF_AUTO);
bgp_dnode = yang_dnode_get_parent(args->dnode, "bgp");
nb_running_set_entry(bgp_dnode, bgp);
nb_running_set_entry(args->dnode, bgp);
break;
}
return NB_OK;
}
int bgp_global_destroy(struct nb_cb_destroy_args *args)
int bgp_destroy(struct nb_cb_destroy_args *args)
{
struct bgp *bgp;
const struct lyd_node *bgp_dnode;
switch (args->event) {
case NB_EV_VALIDATE:
@ -171,8 +167,7 @@ int bgp_global_destroy(struct nb_cb_destroy_args *args)
case NB_EV_ABORT:
return NB_OK;
case NB_EV_APPLY:
bgp_dnode = yang_dnode_get_parent(args->dnode, "bgp");
bgp = nb_running_unset_entry(bgp_dnode);
bgp = nb_running_unset_entry(args->dnode);
bgp_vpn_leak_unimport(bgp);
bgp_delete(bgp);

2
bgpd/bgp_vty.c
View File

@ -1384,7 +1384,7 @@ void cli_show_router_bgp(struct vty *vty, struct lyd_node *dnode,
vrf_dnode = yang_dnode_get_parent(dnode, "control-plane-protocol");
vrf_name = yang_dnode_get_string(vrf_dnode, "./vrf");
as = yang_dnode_get_uint32(dnode, "./local-as");
as = yang_dnode_get_uint32(dnode, "./global/local-as");
vty_out(vty, "!\n");
vty_out(vty, "router bgp %u", as);

2
yang/frr-bgp.yang
View File

@ -90,10 +90,10 @@ module frr-bgp {
"BGP protocol augmentation of ietf-routing module
control-plane-protocol.";
}
presence "Enables configuration of BGP";
description
"Top-level configuration for the BGP router.";
container global {
presence "Enables global configuration of BGP";
description
"Global configuration for the BGP router.";
leaf local-as {