dhcp ip: DSCP settings for transmitted DHCP packets

Type: feature

- Define the ip_dscp_t and use in the IP headers
- Add DSCP setting to the DHCP client for use with packet TX

Change-Id: If220dde0017ea78793747d65f53e11daf23a28fa
Signed-off-by: Neale Ranns <nranns@cisco.com>

1 files changed, 8 insertions, 7 deletions

diff --git a/src/vnet/dhcp/dhcp_api.c b/src/vnet/dhcp/dhcp_api.c
index 7eb2bf46a06..7935ad8ba01 100644
--- a/src/vnet/dhcp/dhcp_api.c
+++ b/src/vnet/dhcp/dhcp_api.c
@@ -28,6 +28,7 @@
 #include <vnet/dhcp/dhcp6_ia_na_client_dp.h>
 #include <vnet/dhcp/dhcp6_client_common_dp.h>
 #include <vnet/fib/fib_table.h>
+#include <vnet/ip/ip_types_api.h>
 
 #include <vnet/vnet_msg_enum.h>
 
@@ -263,6 +264,7 @@ dhcp_client_data_encode (vl_api_dhcp_client_t * vclient,
   else
     vclient->want_dhcp_event = 0;
   vclient->set_broadcast_flag = client->set_broadcast_flag;
+  vclient->dscp = ip_dscp_encode (client->dscp);
   vclient->pid = client->pid;
 }
 
@@ -292,14 +294,13 @@ static void vl_api_dhcp_client_config_t_handler
   vlib_main_t *vm = vlib_get_main ();
   vl_api_dhcp_client_config_reply_t *rmp;
   u32 sw_if_index;
+  ip_dscp_t dscp;
   int rv = 0;
 
+  VALIDATE_SW_IF_INDEX (&(mp->client));
+
   sw_if_index = ntohl (mp->client.sw_if_index);
-  if (!vnet_sw_if_index_is_api_valid (sw_if_index))
-    {
-      rv = VNET_API_ERROR_INVALID_SW_IF_INDEX;
-      goto bad_sw_if_index;
-    }
+  dscp = ip_dscp_decode (mp->client.dscp);
 
   rv = dhcp_client_config (mp->is_add,
 			   mp->client_index,
@@ -310,10 +311,10 @@ static void vl_api_dhcp_client_config_t_handler
 			   (mp->client.want_dhcp_event ?
 			    dhcp_compl_event_callback :
 			    NULL),
-			   mp->client.set_broadcast_flag, mp->client.pid);
+			   mp->client.set_broadcast_flag,
+			   dscp, mp->client.pid);
 
   BAD_SW_IF_INDEX_LABEL;
-
   REPLY_MACRO (VL_API_DHCP_CLIENT_CONFIG_REPLY);
 }