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Added VRF changes for IPv6 link local enhancements #1862

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Added VRF changes for IPv6 link local enhancements #1862

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8b73112
Added VRF changes for IPv6 link local.
AkhileshSamineni Aug 9, 2021
c2bf0c3
Included routeorch header file
AkhileshSamineni Aug 9, 2021
24ca822
Merge branch 'master' into vrf_ipv6_link_local
AkhileshSamineni May 28, 2022
ab607c1
Merge branch 'master' into vrf_ipv6_link_local
prsunny Dec 10, 2024
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27 changes: 27 additions & 0 deletions orchagent/vrforch.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -13,6 +13,7 @@
#include "vxlanorch.h"
#include "flowcounterrouteorch.h"
#include "directory.h"
#include "routeorch.h"

using namespace std;
using namespace swss;
Expand All @@ -23,6 +24,7 @@ extern sai_object_id_t gSwitchId;
extern Directory<Orch*> gDirectory;
extern PortsOrch* gPortsOrch;
extern FlowCounterRouteOrch* gFlowCounterRouteOrch;
extern RouteOrch* gRouteOrch;

bool VRFOrch::addOperation(const Request& request)
{
Expand Down Expand Up @@ -104,6 +106,20 @@ bool VRFOrch::addOperation(const Request& request)
}
}

/* Add link-local fe80::/10 CPU route for the VRF. */
IpPrefix default_link_local_prefix("fe80::/10");
gRouteOrch->addLinkLocalRouteToMe(router_id, default_link_local_prefix);
SWSS_LOG_NOTICE("Created link local ipv6 route %s to cpu in VRF %s", default_link_local_prefix.to_string().c_str(), vrf_name.c_str());

/* All the interfaces have the same MAC address and hence the same
* auto-generated link-local ipv6 address with eui64 interface-id.
* Hence add a single /128 route entry for the link-local interface
* address pointing to the CPU port.
*/
IpPrefix linklocal_prefix = gRouteOrch->getLinkLocalEui64Addr();
gRouteOrch->addLinkLocalRouteToMe(router_id, linklocal_prefix);
SWSS_LOG_NOTICE("Created link local ipv6 route %s to cpu in VRF %s", linklocal_prefix.to_string().c_str(), vrf_name.c_str());

vrf_table_[vrf_name].vrf_id = router_id;
vrf_table_[vrf_name].ref_count = 0;
vrf_id_table_[router_id] = vrf_name;
Expand Down Expand Up @@ -170,6 +186,17 @@ bool VRFOrch::delOperation(const Request& request)
return false;

sai_object_id_t router_id = vrf_table_[vrf_name].vrf_id;

/* Delete link-local ipv6 address with eui64 /128 CPU route for the VRF. */
IpPrefix linklocal_prefix = gRouteOrch->getLinkLocalEui64Addr();
gRouteOrch->delLinkLocalRouteToMe(router_id, linklocal_prefix);
SWSS_LOG_NOTICE("Deleted link local ipv6 route %s to cpu in VRF %s", linklocal_prefix.to_string().c_str(), vrf_name.c_str());

/* Delete link-local fe80::/10 CPU route for the VRF. */
IpPrefix default_link_local_prefix("fe80::/10");
gRouteOrch->delLinkLocalRouteToMe(router_id, default_link_local_prefix);
SWSS_LOG_NOTICE("Deleted link local ipv6 route %s to cpu in VRF %s", default_link_local_prefix.to_string().c_str(), vrf_name.c_str());

sai_status_t status = sai_virtual_router_api->remove_virtual_router(router_id);
if (status != SAI_STATUS_SUCCESS)
{
Expand Down
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