sr: fix srv6/srv6-ad/srv6-as promisc mode switch

Calling ethernet_set_flags() to switch interface to/from promiscuous
mode must use use hw_if_index instead of sw_if_index.

Type: fix

Signed-off-by: John Lo <loj@cisco.com>
Change-Id: I72da286b913893227e32193ee11fbbc56e04804d
(cherry picked from commit 5b960c60f61c937d0f862be8a7573922b616de75)

3 files changed, 32 insertions, 22 deletions

diff --git a/src/plugins/srv6-ad/ad.c b/src/plugins/srv6-ad/ad.c
index 73ea3f6ac1f..9bf48147188 100644
--- a/src/plugins/srv6-ad/ad.c
+++ b/src/plugins/srv6-ad/ad.c
@@ -105,8 +105,12 @@ srv6_ad_localsid_creation_fn (ip6_sr_localsid_t * localsid)
 
       /* Set interface in promiscuous mode */
       vnet_main_t *vnm = vnet_get_main ();
-      ethernet_set_flags (vnm, ls_mem->sw_if_index_in,
-			  ETHERNET_INTERFACE_FLAG_ACCEPT_ALL);
+      vnet_hw_interface_t *hi =
+	vnet_get_sup_hw_interface (vnm, ls_mem->sw_if_index_in);
+      /* Make sure it is main interface */
+      if (hi->sw_if_index == ls_mem->sw_if_index_in)
+	ethernet_set_flags (vnm, hi->hw_if_index,
+			    ETHERNET_INTERFACE_FLAG_ACCEPT_ALL);
 
       /* Associate local SID index to this interface (resize vector if needed) */
       if (ls_mem->sw_if_index_in >= vec_len (sm->sw_iface_localsid2))
@@ -196,7 +200,11 @@ srv6_ad_localsid_removal_fn (ip6_sr_localsid_t * localsid)
 
       /* Disable promiscuous mode on the interface */
       vnet_main_t *vnm = vnet_get_main ();
-      ethernet_set_flags (vnm, ls_mem->sw_if_index_in, 0);
+      vnet_hw_interface_t *hi =
+	vnet_get_sup_hw_interface (vnm, ls_mem->sw_if_index_in);
+      /* Make sure it is main interface */
+      if (hi->sw_if_index == ls_mem->sw_if_index_in)
+	ethernet_set_flags (vnm, hi->hw_if_index, 0);
 
       /* Remove local SID index from interface table */
       sm->sw_iface_localsid2[ls_mem->sw_if_index_in] = ~(u32) 0;
diff --git a/src/plugins/srv6-as/as.c b/src/plugins/srv6-as/as.c
index 3a476044d60..69efc99e429 100644
--- a/src/plugins/srv6-as/as.c
+++ b/src/plugins/srv6-as/as.c
@@ -177,8 +177,12 @@ srv6_as_localsid_creation_fn (ip6_sr_localsid_t * localsid)
 
       /* Set interface in promiscuous mode */
       vnet_main_t *vnm = vnet_get_main ();
-      ethernet_set_flags (vnm, ls_mem->sw_if_index_in,
-			  ETHERNET_INTERFACE_FLAG_ACCEPT_ALL);
+      vnet_hw_interface_t *hi =
+	vnet_get_sup_hw_interface (vnm, ls_mem->sw_if_index_in);
+      /* Make sure it is main interface */
+      if (hi->sw_if_index == ls_mem->sw_if_index_in)
+	ethernet_set_flags (vnm, hi->hw_if_index,
+			    ETHERNET_INTERFACE_FLAG_ACCEPT_ALL);
 
       /* Prepare rewrite string */
       ls_mem->rewrite = prepare_rewrite (ls_mem->src_addr, ls_mem->sid_list,
@@ -278,7 +282,11 @@ srv6_as_localsid_removal_fn (ip6_sr_localsid_t * localsid)
 
       /* Disable promiscuous mode on the interface */
       vnet_main_t *vnm = vnet_get_main ();
-      ethernet_set_flags (vnm, ls_mem->sw_if_index_in, 0);
+      vnet_hw_interface_t *hi =
+	vnet_get_sup_hw_interface (vnm, ls_mem->sw_if_index_in);
+      /* Make sure it is main interface */
+      if (hi->sw_if_index == ls_mem->sw_if_index_in)
+	ethernet_set_flags (vnm, hi->hw_if_index, 0);
 
       /* Remove local SID index from interface table */
       sm->sw_iface_localsid2[ls_mem->sw_if_index_in] = ~(u32) 0;
diff --git a/src/vnet/srv6/sr_steering.c b/src/vnet/srv6/sr_steering.c
index 566ba1fe5a0..aa98a45d3da 100755
--- a/src/vnet/srv6/sr_steering.c
+++ b/src/vnet/srv6/sr_steering.c
@@ -146,14 +146,11 @@ sr_steering_policy (int is_del, ip6_address_t * bsid, u32 sr_policy_index,
 
 	      /* Remove promiscous mode from interface */
 	      vnet_main_t *vnm = vnet_get_main ();
-	      ethernet_main_t *em = &ethernet_main;
-	      ethernet_interface_t *eif =
-		ethernet_get_interface (em, sw_if_index);
-
-	      if (!eif)
-		goto cleanup_error_redirection;
-
-	      ethernet_set_flags (vnm, sw_if_index, 0);
+	      vnet_hw_interface_t *hi =
+		vnet_get_sup_hw_interface (vnm, sw_if_index);
+	      /* Make sure it is main interface */
+	      if (hi->sw_if_index == sw_if_index)
+		ethernet_set_flags (vnm, hi->hw_if_index, 0);
 	    }
 
 	  /* Delete SR steering policy entry */
@@ -289,14 +286,11 @@ sr_steering_policy (int is_del, ip6_address_t * bsid, u32 sr_policy_index,
 
       /* Set promiscous mode on interface */
       vnet_main_t *vnm = vnet_get_main ();
-      ethernet_main_t *em = &ethernet_main;
-      ethernet_interface_t *eif = ethernet_get_interface (em, sw_if_index);
-
-      if (!eif)
-	goto cleanup_error_redirection;
-
-      ethernet_set_flags (vnm, sw_if_index,
-			  ETHERNET_INTERFACE_FLAG_ACCEPT_ALL);
+      vnet_hw_interface_t *hi = vnet_get_sup_hw_interface (vnm, sw_if_index);
+      /* Make sure it is main interface */
+      if (hi->sw_if_index == sw_if_index)
+	ethernet_set_flags (vnm, hi->hw_if_index,
+			    ETHERNET_INTERFACE_FLAG_ACCEPT_ALL);
     }
   else if (traffic_type == SR_STEER_IPV4)
     if (!sr_policy->is_encap)