From e2fe097424fb169dfe01421ff17b8ccd0c26b4a6 Mon Sep 17 00:00:00 2001
From: Neale Ranns <neale.ranns@cisco.com>
Date: Thu, 26 Nov 2020 08:37:27 +0000
Subject: fib: Source Address Selection

Type: feature

Use the FIB to provide SAS (in so far as it is today)
 - Use the glean adjacency as the record of the connected prefixes
 = there's a glean per-{interface, protocol, connected-prefix}
 - Keep the glean up to date with whatever the recieve host prefix is
(since it can change)

Signed-off-by: Neale Ranns <neale.ranns@cisco.com>
Change-Id: I0f3dd1edb1f3fc965af1c7c586709028eb9cdeac
---
 src/plugins/vrrp/vrrp_packet.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

(limited to 'src/plugins/vrrp/vrrp_packet.c')

diff --git a/src/plugins/vrrp/vrrp_packet.c b/src/plugins/vrrp/vrrp_packet.c
index 6b0d4c96c2d..b77f336930a 100644
--- a/src/plugins/vrrp/vrrp_packet.c
+++ b/src/plugins/vrrp/vrrp_packet.c
@@ -14,6 +14,7 @@
 #include <vnet/adj/adj.h>
 #include <vnet/adj/adj_mcast.h>
 #include <vnet/fib/fib_table.h>
+#include <vnet/fib/fib_sas.h>
 #include <vnet/ip/igmp_packet.h>
 #include <vnet/ip/ip6_link.h>
 #include <vnet/ethernet/arp_packet.h>
@@ -107,8 +108,7 @@ vrrp_adv_l3_build (vrrp_vr_t * vr, vlib_buffer_t * b,
       ip4->ttl = 255;
       ip4->protocol = IP_PROTOCOL_VRRP;
       clib_memcpy (&ip4->dst_address, &dst->ip4, sizeof (dst->ip4));
-      ip4_src_address_for_packet (&ip4_main.lookup_main,
-				  vr->config.sw_if_index, &ip4->src_address);
+      fib_sas4_get (vr->config.sw_if_index, NULL, &ip4->src_address);
       ip4->length = clib_host_to_net_u16 (sizeof (*ip4) +
 					  vrrp_adv_payload_len (vr));
       ip4->checksum = ip4_header_checksum (ip4);
@@ -541,8 +541,7 @@ vrrp_igmp_pkt_build (vrrp_vr_t * vr, vlib_buffer_t * b)
 
   ip4 = vlib_buffer_get_current (b);
   clib_memcpy (ip4, &igmp_ip4_mcast, sizeof (*ip4));
-  ip4_src_address_for_packet (&ip4_main.lookup_main, vr->config.sw_if_index,
-			      &ip4->src_address);
+  fib_sas4_get (vr->config.sw_if_index, NULL, &ip4->src_address);
 
   vlib_buffer_chain_increase_length (b, b, sizeof (*ip4));
   vlib_buffer_advance (b, sizeof (*ip4));
-- 
cgit 1.2.3-korg