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bgpd: Bgpevpn tenant vrf association

Browse Source 
Signed-off-by: Mitesh Kanjariya <mitesh@cumulusnetworks.com>
This commit is contained in:
Mitesh Kanjariya 2017-10-07 20:26:16 -07:00 committed by Mitesh Kanjariya
parent b7cfce934f
commit 29c539221f
5 changed files with 38 additions and 15 deletions
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14
bgpd/bgp_evpn.c
View File

@ -2564,7 +2564,8 @@ struct bgpevpn *bgp_evpn_lookup_vni(struct bgp *bgp, vni_t vni)
* Create a new vpn - invoked upon configuration or zebra notification.
*/
struct bgpevpn *bgp_evpn_new(struct bgp *bgp, vni_t vni,
struct in_addr originator_ip)
struct in_addr originator_ip,
vrf_id_t tenant_vrf_id)
{
struct bgpevpn *vpn;
@ -2578,6 +2579,7 @@ struct bgpevpn *bgp_evpn_new(struct bgp *bgp, vni_t vni,
/* Set values - RD and RT set to defaults. */
vpn->vni = vni;
vpn->originator_ip = originator_ip;
vpn->tenant_vrf_id = tenant_vrf_id;
/* Initialize route-target import and export lists */
vpn->import_rtl = list_new();
@ -2813,7 +2815,8 @@ int bgp_evpn_local_vni_del(struct bgp *bgp, vni_t vni)
* about is change to local-tunnel-ip.
*/
int bgp_evpn_local_vni_add(struct bgp *bgp, vni_t vni,
struct in_addr originator_ip)
struct in_addr originator_ip,
vrf_id_t tenant_vrf_id)
{
struct bgpevpn *vpn;
struct prefix_evpn p;
@ -2826,6 +2829,11 @@ int bgp_evpn_local_vni_add(struct bgp *bgp, vni_t vni,
/* Lookup VNI. If present and no change, exit. */
vpn = bgp_evpn_lookup_vni(bgp, vni);
if (vpn) {
/* update tenant_vrf_id if required */
if (vpn->tenant_vrf_id != tenant_vrf_id)
vpn->tenant_vrf_id = tenant_vrf_id;
if (is_vni_live(vpn)
&& IPV4_ADDR_SAME(&vpn->originator_ip, &originator_ip))
/* Probably some other param has changed that we don't
@ -2838,7 +2846,7 @@ int bgp_evpn_local_vni_add(struct bgp *bgp, vni_t vni,
/* Create or update as appropriate. */
if (!vpn) {
vpn = bgp_evpn_new(bgp, vni, originator_ip);
vpn = bgp_evpn_new(bgp, vni, originator_ip, tenant_vrf_id);
if (!vpn) {
zlog_err(
"%u: Failed to allocate VNI entry for VNI %u - at Add",

3
bgpd/bgp_evpn.h
View File

@ -47,7 +47,8 @@ extern int bgp_evpn_local_macip_add(struct bgp *bgp, vni_t vni,
u_char flags);
extern int bgp_evpn_local_vni_del(struct bgp *bgp, vni_t vni);
extern int bgp_evpn_local_vni_add(struct bgp *bgp, vni_t vni,
struct in_addr originator_ip);
struct in_addr originator_ip,
vrf_id_t tenant_vrf_id);
extern void bgp_evpn_cleanup_on_disable(struct bgp *bgp);
extern void bgp_evpn_cleanup(struct bgp *bgp);
extern void bgp_evpn_init(struct bgp *bgp);

4
bgpd/bgp_evpn_private.h
View File

@ -53,6 +53,7 @@ typedef enum {
*/
struct bgpevpn {
vni_t vni;
vrf_id_t tenant_vrf_id;
u_int32_t flags;
#define VNI_FLAG_CFGD 0x1 /* VNI is user configured */
#define VNI_FLAG_LIVE 0x2 /* VNI is "live" */
@ -213,6 +214,7 @@ extern void bgp_evpn_derive_auto_rt_export(struct bgp *bgp,
extern void bgp_evpn_derive_auto_rd(struct bgp *bgp, struct bgpevpn *vpn);
extern struct bgpevpn *bgp_evpn_lookup_vni(struct bgp *bgp, vni_t vni);
extern struct bgpevpn *bgp_evpn_new(struct bgp *bgp, vni_t vni,
struct in_addr originator_ip);
struct in_addr originator_ip,
vrf_id_t tenant_vrf_id);
extern void bgp_evpn_free(struct bgp *bgp, struct bgpevpn *vpn);
#endif /* _BGP_EVPN_PRIVATE_H */

16
bgpd/bgp_evpn_vty.c
View File

@ -252,6 +252,8 @@ static void display_vni(struct vty *vty, struct bgpevpn *vpn, json_object *json)
vty_out(vty, " (known to the kernel)");
vty_out(vty, "\n");
vty_out(vty, " Tenant-Vrf: %s\n",
vrf_id_to_name(vpn->tenant_vrf_id));
vty_out(vty, " RD: %s\n",
prefix_rd2str(&vpn->prd, buf1, sizeof(buf1)));
vty_out(vty, " Originator IP: %s\n",
@ -448,9 +450,10 @@ static void show_vni_entry(struct hash_backet *backet, void *args[])
json_vni, "rd",
prefix_rd2str(&vpn->prd, buf2, sizeof(buf2)));
} else {
vty_out(vty, "%-1s %-10u %-15s %-21s", buf1, vpn->vni,
vty_out(vty, "%-1s %-10u %-15s %-37s %-21s", buf1, vpn->vni,
inet_ntoa(vpn->originator_ip),
prefix_rd2str(&vpn->prd, buf2, sizeof(buf2)));
vrf_id_to_name(vpn->tenant_vrf_id),
prefix_rd2str(&vpn->prd, buf2, RD_ADDRSTRLEN));
}
for (ALL_LIST_ELEMENTS(vpn->import_rtl, node, nnode, ecom)) {
@ -1403,7 +1406,9 @@ static struct bgpevpn *evpn_create_update_vni(struct bgp *bgp, vni_t vni)
vpn = bgp_evpn_lookup_vni(bgp, vni);
if (!vpn) {
vpn = bgp_evpn_new(bgp, vni, bgp->router_id);
/* tenant vrf will be updated when we get local_vni_add from
* zebra */
vpn = bgp_evpn_new(bgp, vni, bgp->router_id, 0);
if (!vpn) {
zlog_err(
"%u: Failed to allocate VNI entry for VNI %u - at Config",
@ -2014,8 +2019,9 @@ static void evpn_show_all_vnis(struct vty *vty, struct bgp *bgp,
} else {
vty_out(vty, "Number of VNIs: %u\n", num_vnis);
vty_out(vty, "Flags: * - Kernel\n");
vty_out(vty, " %-10s %-15s %-21s %-25s %-25s\n", "VNI",
"Orig IP", "RD", "Import RT", "Export RT");
vty_out(vty, " %-10s %-15s %-37s %-21s %-25s %-25s\n", "VNI",
"Orig IP", "Tenant-Vrf", "RD", "Import RT",
"Export RT");
}
args[0] = vty;

16
bgpd/bgp_zebra.c
View File

@ -1682,23 +1682,29 @@ static int bgp_zebra_process_local_vni(int command, struct zclient *zclient,
vni_t vni;
struct bgp *bgp;
struct in_addr vtep_ip;
vrf_id_t tenant_vrf_id = VRF_DEFAULT;
s = zclient->ibuf;
vni = stream_getl(s);
if (command == ZEBRA_VNI_ADD)
if (command == ZEBRA_VNI_ADD) {
vtep_ip.s_addr = stream_get_ipv4(s);
stream_get(&tenant_vrf_id, s, sizeof(vrf_id_t));
}
bgp = bgp_lookup_by_vrf_id(vrf_id);
if (!bgp)
return 0;
if (BGP_DEBUG(zebra, ZEBRA))
zlog_debug("Rx VNI %s VRF %u VNI %u",
(command == ZEBRA_VNI_ADD) ? "add" : "del", vrf_id,
vni);
zlog_debug("Rx VNI %s VRF %s VNI %u tenant-vrf %s",
(command == ZEBRA_VNI_ADD) ? "add" : "del",
vrf_id_to_name(vrf_id),
vni, vrf_id_to_name(tenant_vrf_id));
if (command == ZEBRA_VNI_ADD)
return bgp_evpn_local_vni_add(
bgp, vni, vtep_ip.s_addr ? vtep_ip : bgp->router_id);
bgp, vni, vtep_ip.s_addr ? vtep_ip : bgp->router_id,
tenant_vrf_id);
else
return bgp_evpn_local_vni_del(bgp, vni);
}