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bgpd: show bgp vrfs per vrf level json support
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json support extended for show [ip] bgp vrfs <vrf-name> json

Before:
```
tor-2# show ip bgp vrfs default json
% JSON option not yet supported for specific VRF
tor-2#
tor-2# show bgp vrfs sym_1 json
% JSON option not yet supported for specific VRF
tor-2#
```

After:
```
tor-1# show ip bgp vrfs default json
{
  "default":{
    "type":"DFLT",
    "vrfId":0,
    "routerId":"27.0.0.7",
    "numConfiguredPeers":2,
    "numEstablishedPeers":2,
    "l3vni":0,
    "rmac":"00:00:00:00:00:00",
    "interface":"unknown"
  }
}
tor-1#
tor-1# show bgp vrfs sym_1 json
{
  "sym_1":{
    "type":"VRF",
    "vrfId":21,
    "routerId":"27.0.0.81",
    "numConfiguredPeers":0,
    "numEstablishedPeers":0,
    "l3vni":8888,
    "rmac":"44:38:39:ff:ff:25",
    "interface":"vlan490_l3"
  }
}
tor-1#

tor-1# show bgp vrfs test json
{
}
tor-1#
```

Ticket:#3314672

Issue:3314672

Testing: UT done

Signed-off-by: Chirag Shah <chirag@nvidia.com>
Signed-off-by: Sindhu Parvathi Gopinathan <sgopinathan@nvidia.com>
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@donaldsharp
Sindhu Parvathi Gopinathan authored and donaldsharp committed Feb 24, 2023
1 parent 25ac281 commit e4ab682
Showing 1 changed file with 136 additions and 57 deletions.
193 changes: 136 additions & 57 deletions bgpd/bgp_vty.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -10074,35 +10074,158 @@ DEFUN (show_bgp_views,
return CMD_SUCCESS;
}

DEFUN (show_bgp_vrfs,
static inline void calc_peers_cfgd_estbd(struct bgp *bgp, int *peers_cfgd,
int *peers_estbd)
{
struct peer *peer;
struct listnode *node;

*peers_cfgd = *peers_estbd = 0;
for (ALL_LIST_ELEMENTS_RO(bgp->peer, node, peer)) {
if (!CHECK_FLAG(peer->flags, PEER_FLAG_CONFIG_NODE))
continue;
(*peers_cfgd)++;
if (peer_established(peer))
(*peers_estbd)++;
}
}

static void print_bgp_vrfs(struct bgp *bgp, struct vty *vty, json_object *json,
const char *type)
{
int peers_cfg, peers_estb;

calc_peers_cfgd_estbd(bgp, &peers_cfg, &peers_estb);

if (json) {
int64_t vrf_id_ui = (bgp->vrf_id == VRF_UNKNOWN)
? -1
: (int64_t)bgp->vrf_id;
json_object_string_add(json, "type", type);
json_object_int_add(json, "vrfId", vrf_id_ui);
json_object_string_addf(json, "routerId", "%pI4",
&bgp->router_id);
json_object_int_add(json, "numConfiguredPeers", peers_cfg);
json_object_int_add(json, "numEstablishedPeers", peers_estb);
json_object_int_add(json, "l3vni", bgp->l3vni);
json_object_string_addf(json, "rmac", "%pEA", &bgp->rmac);
json_object_string_add(
json, "interface",
ifindex2ifname(bgp->l3vni_svi_ifindex, bgp->vrf_id));
}
}

static int show_bgp_vrfs_detail_common(struct vty *vty, struct bgp *bgp,
json_object *json, const char *name,
const char *type, bool use_vrf)
{
int peers_cfg, peers_estb;

calc_peers_cfgd_estbd(bgp, &peers_cfg, &peers_estb);

if (use_vrf) {
if (json) {
print_bgp_vrfs(bgp, vty, json, type);
} else {
vty_out(vty, "BGP instance %s VRF id %d\n",
bgp->name_pretty,
bgp->vrf_id == VRF_UNKNOWN ? -1
: (int)bgp->vrf_id);
vty_out(vty, "Router Id %pI4\n", &bgp->router_id);
vty_out(vty,
"Num Configured Peers %d, Established %d\n",
peers_cfg, peers_estb);
if (bgp->l3vni) {
vty_out(vty,
"L3VNI %u, L3VNI-SVI %s, Router MAC %pEA\n",
bgp->l3vni,
ifindex2ifname(bgp->l3vni_svi_ifindex,
bgp->vrf_id),
&bgp->rmac);
}
}
} else {
if (json) {
print_bgp_vrfs(bgp, vty, json, type);
} else {
vty_out(vty, "%4s %-5d %-16pI4 %-9u %-10u %-37s\n",
type,
bgp->vrf_id == VRF_UNKNOWN ? -1
: (int)bgp->vrf_id,
&bgp->router_id, peers_cfg, peers_estb, name);
vty_out(vty, "%11s %-16u %-21pEA %-20s\n", " ",
bgp->l3vni, &bgp->rmac,
ifindex2ifname(bgp->l3vni_svi_ifindex,
bgp->vrf_id));
}
}

return CMD_SUCCESS;
}

DEFPY (show_bgp_vrfs,
show_bgp_vrfs_cmd,
"show [ip] bgp vrfs [json]",
"show [ip] bgp vrfs [<VRFNAME$vrf_name>] [json]",
SHOW_STR
IP_STR
BGP_STR
"Show BGP VRFs\n"
"Specific VRF name\n"
JSON_STR)
{
char buf[ETHER_ADDR_STRLEN];
struct list *inst = bm->bgp;
struct listnode *node;
struct bgp *bgp;
bool uj = use_json(argc, argv);
json_object *json = NULL;
json_object *json_vrfs = NULL;
json_object *json_vrf = NULL;
int count = 0;
const char *name = vrf_name;
const char *type;

if (uj) {
if (uj)
json = json_object_new_object();
json_vrfs = json_object_new_object();

if (name) {
if (strmatch(name, VRF_DEFAULT_NAME)) {
bgp = bgp_get_default();
type = "DFLT";
} else {
bgp = bgp_lookup_by_name(name);
type = "VRF";
}
if (!bgp) {
if (uj)
vty_json(vty, json);
else
vty_out(vty,
"%% Specified BGP instance not found\n");

return CMD_WARNING;
}
}

if (vrf_name) {
if (uj)
json_vrf = json_object_new_object();

show_bgp_vrfs_detail_common(vty, bgp, json_vrf, name, type,
true);

if (uj) {
json_object_object_add(json, name, json_vrf);
vty_json(vty, json);
}

return CMD_SUCCESS;
}

if (uj)
json_vrfs = json_object_new_object();

for (ALL_LIST_ELEMENTS_RO(inst, node, bgp)) {
const char *name, *type;
struct peer *peer;
struct listnode *node2, *nnode2;
int peers_cfg, peers_estb;
json_object *json_vrf = NULL;
const char *name;

/* Skip Views. */
if (bgp->inst_type == BGP_INSTANCE_TYPE_VIEW)
Expand All @@ -10117,20 +10240,9 @@ DEFUN (show_bgp_vrfs,
vty_out(vty, "%11s %-16s %-21s %-6s\n", " ",
"L3-VNI", "RouterMAC", "Interface");
}

peers_cfg = peers_estb = 0;
if (uj)
json_vrf = json_object_new_object();


for (ALL_LIST_ELEMENTS(bgp->peer, node2, nnode2, peer)) {
if (!CHECK_FLAG(peer->flags, PEER_FLAG_CONFIG_NODE))
continue;
peers_cfg++;
if (peer_established(peer))
peers_estb++;
}

if (bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT) {
name = VRF_DEFAULT_NAME;
type = "DFLT";
Expand All @@ -10139,49 +10251,16 @@ DEFUN (show_bgp_vrfs,
type = "VRF";
}

show_bgp_vrfs_detail_common(vty, bgp, json_vrf, name, type,
false);

if (uj) {
int64_t vrf_id_ui = (bgp->vrf_id == VRF_UNKNOWN)
? -1
: (int64_t)bgp->vrf_id;
char buf[BUFSIZ] = {0};

json_object_string_add(json_vrf, "type", type);
json_object_int_add(json_vrf, "vrfId", vrf_id_ui);
json_object_string_addf(json_vrf, "routerId", "%pI4",
&bgp->router_id);
json_object_int_add(json_vrf, "numConfiguredPeers",
peers_cfg);
json_object_int_add(json_vrf, "numEstablishedPeers",
peers_estb);

json_object_int_add(json_vrf, "l3vni", bgp->l3vni);
json_object_string_add(
json_vrf, "rmac",
prefix_mac2str(&bgp->rmac, buf, sizeof(buf)));
json_object_string_add(json_vrf, "interface",
ifindex2ifname(bgp->l3vni_svi_ifindex,
bgp->vrf_id));
if (uj)
json_object_object_add(json_vrfs, name, json_vrf);
} else {
vty_out(vty, "%4s %-5d %-16pI4 %-9u %-10u %-37s\n",
type,
bgp->vrf_id == VRF_UNKNOWN ? -1
: (int)bgp->vrf_id,
&bgp->router_id, peers_cfg, peers_estb, name);
vty_out(vty,"%11s %-16u %-21s %-20s\n", " ",
bgp->l3vni,
prefix_mac2str(&bgp->rmac, buf, sizeof(buf)),
ifindex2ifname(bgp->l3vni_svi_ifindex,
bgp->vrf_id));
}
}

if (uj) {
json_object_object_add(json, "vrfs", json_vrfs);

json_object_int_add(json, "totalVrfs", count);

vty_json(vty, json);
} else {
if (count)
Expand Down

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