commit 1e96617d952e2d5d8cc367a226702f8f825ed039
author Florin Coras <fcoras@cisco.com> Sat May 16 18:18:14 2020 +0000
committer Dave Barach <openvpp@barachs.net> Thu May 21 16:54:58 2020 +0000
tree 700a6360a48e5d738a2dcb00cf9c99ea82664866
parent fc74697ed3b45499027b272332af786e8e7917bb

vcl: support connected udp listens

Request connected udp listener behavior by setting
VPPCOM_ATTR_SET_CONNECTED attribute with vppcom_session_attr

Type: feature

Signed-off-by: Florin Coras <fcoras@cisco.com>
Change-Id: Iba95155c0f41cea8c6e1a4263946270d49c213ac

src/vcl/vppcom.c

diff --git a/src/vcl/vppcom.c b/src/vcl/vppcom.c
index 173b7fd..35e7804 100644
--- a/src/vcl/vppcom.c
+++ b/src/vcl/vppcom.c
@@ -209,6 +209,8 @@
   clib_memcpy_fast (&mp->ip, &s->transport.lcl_ip, sizeof (mp->ip));
   mp->port = s->transport.lcl_port;
   mp->proto = s->session_type;
+  if (s->flags & VCL_SESSION_F_CONNECTED)
+    mp->flags = TRANSPORT_CFG_F_CONNECTED;
   app_send_ctrl_evt_to_vpp (mq, app_evt);
 }
 
@@ -3592,6 +3594,11 @@
 	*(int *) buffer = SHUT_RDWR;
       *buflen = sizeof (int);
       break;
+
+    case VPPCOM_ATTR_SET_CONNECTED:
+      session->flags |= VCL_SESSION_F_CONNECTED;
+      break;
+
     default:
       rv = VPPCOM_EINVAL;
       break;

src/vcl/vppcom.h

diff --git a/src/vcl/vppcom.h b/src/vcl/vppcom.h
index e2e0ae7..c61de37 100644
--- a/src/vcl/vppcom.h
+++ b/src/vcl/vppcom.h
@@ -160,6 +160,7 @@
   VPPCOM_ATTR_SET_TCP_USER_MSS,
   VPPCOM_ATTR_SET_SHUT,
   VPPCOM_ATTR_GET_SHUT,
+  VPPCOM_ATTR_SET_CONNECTED,
 } vppcom_attr_op_t;
 
 typedef struct _vcl_poll

src/vnet/session/application_interface.h

diff --git a/src/vnet/session/application_interface.h b/src/vnet/session/application_interface.h
index d0d6503..7a3eeeb 100644
--- a/src/vnet/session/application_interface.h
+++ b/src/vnet/session/application_interface.h
@@ -315,6 +315,7 @@
   ip46_address_t ip;
   u32 ckpair_index;
   u8 crypto_engine;
+  u8 flags;
 } __clib_packed session_listen_msg_t;
 
 STATIC_ASSERT (sizeof (session_listen_msg_t) <= SESSION_CTRL_MSG_MAX_SIZE,

src/vnet/session/session_node.c

diff --git a/src/vnet/session/session_node.c b/src/vnet/session/session_node.c
index d2b918a..d49fa1e 100644
--- a/src/vnet/session/session_node.c
+++ b/src/vnet/session/session_node.c
@@ -60,6 +60,7 @@
   a->sep_ext.crypto_engine = mp->crypto_engine;
   a->app_index = app->app_index;
   a->wrk_map_index = mp->wrk_index;
+  a->sep_ext.transport_flags = mp->flags;
 
   if ((rv = vnet_listen (a)))
     clib_warning ("listen returned: %d", rv);