lb: vip and as dump/detail api's

- lb_vip_dump/lb_vip_details - get all vip.
- lb_as_dump/lb_as_details - get all as list per vip.
- adds api unit test.
- adds vpp_lb to test framework.

Ticket:
Type: feature

Change-Id: I24be50d62c5234f3535cc840603ddd9df7eb3f07
Signed-off-by: Hongjun Ni <hongjun.ni@intel.com>
Signed-off-by: Paul Vinciguerra <pvinci@vinciconsulting.com>
Signed-off-by: Hongjun Ni <hongjun.ni@intel.com>

7 files changed, 441 insertions, 75 deletions

diff --git a/src/plugins/lb/CMakeLists.txt b/src/plugins/lb/CMakeLists.txt
index 406b16a9fe2..69ca948a001 100644
--- a/src/plugins/lb/CMakeLists.txt
+++ b/src/plugins/lb/CMakeLists.txt
@@ -21,6 +21,7 @@ add_vpp_plugin(lb
 
   API_FILES
   lb.api
+  lb_types.api
 
   INSTALL_HEADERS
   lb.h
diff --git a/src/plugins/lb/api.c b/src/plugins/lb/api.c
index ad92b9b97dd..86e2ce08ed7 100644
--- a/src/plugins/lb/api.c
+++ b/src/plugins/lb/api.c
@@ -19,10 +19,11 @@
 
 #include <vppinfra/byte_order.h>
 #include <vppinfra/string.h>
-#include <vlibapi/api.h>
+#include <vpp/api/types.h>
 #include <vlibapi/api.h>
 #include <vlibmemory/api.h>
 #include <vpp/app/version.h>
+#include <vnet/ip/ip_types_api.h>
 
 /* define message IDs */
 #include <lb/lb_msg_enum.h>
@@ -56,6 +57,8 @@
 _(LB_CONF, lb_conf)                          \
 _(LB_ADD_DEL_VIP, lb_add_del_vip)            \
 _(LB_ADD_DEL_AS, lb_add_del_as)              \
+_(LB_VIP_DUMP, lb_vip_dump)                  \
+_(LB_AS_DUMP, lb_as_dump)                    \
 _(LB_FLUSH_VIP, lb_flush_vip)                \
 
 
@@ -117,46 +120,46 @@ vl_api_lb_add_del_vip_t_handler
       mp->protocol = ~0;
     }
 
-  memcpy (&(args.prefix.ip6), mp->ip_prefix, sizeof(args.prefix.ip6));
+  memcpy (&(args.prefix), &mp->pfx, sizeof(args.prefix));
 
   if (mp->is_del) {
     u32 vip_index;
-    if (!(rv = lb_vip_find_index(&(args.prefix), mp->prefix_length,
+    if (!(rv = lb_vip_find_index(&(args.prefix), mp->pfx.len,
                                  mp->protocol, ntohs(mp->port), &vip_index)))
       rv = lb_vip_del(vip_index);
   } else {
     u32 vip_index;
     lb_vip_type_t type = 0;
 
-    if (ip46_prefix_is_ip4(&(args.prefix), mp->prefix_length)) {
-        if (mp->encap == LB_ENCAP_TYPE_GRE4)
+    if (ip46_prefix_is_ip4(&(args.prefix), mp->pfx.len)) {
+        if (mp->encap == LB_API_ENCAP_TYPE_GRE4)
             type = LB_VIP_TYPE_IP4_GRE4;
-        else if (mp->encap == LB_ENCAP_TYPE_GRE6)
+        else if (mp->encap == LB_API_ENCAP_TYPE_GRE6)
             type = LB_VIP_TYPE_IP4_GRE6;
-        else if (mp->encap == LB_ENCAP_TYPE_L3DSR)
+        else if (mp->encap == LB_API_ENCAP_TYPE_L3DSR)
             type = LB_VIP_TYPE_IP4_L3DSR;
-        else if (mp->encap == LB_ENCAP_TYPE_NAT4)
+        else if (mp->encap == LB_API_ENCAP_TYPE_NAT4)
             type = LB_VIP_TYPE_IP4_NAT4;
     } else {
-        if (mp->encap == LB_ENCAP_TYPE_GRE4)
+        if (mp->encap == LB_API_ENCAP_TYPE_GRE4)
             type = LB_VIP_TYPE_IP6_GRE4;
-        else if (mp->encap == LB_ENCAP_TYPE_GRE6)
+        else if (mp->encap == LB_API_ENCAP_TYPE_GRE6)
             type = LB_VIP_TYPE_IP6_GRE6;
-        else if (mp->encap == LB_ENCAP_TYPE_NAT6)
+        else if (mp->encap == LB_API_ENCAP_TYPE_NAT6)
             type = LB_VIP_TYPE_IP6_NAT6;
     }
 
-    args.plen = mp->prefix_length;
+    args.plen = mp->pfx.len;
     args.protocol = mp->protocol;
     args.port = ntohs(mp->port);
     args.type = type;
     args.new_length = ntohl(mp->new_flows_table_length);
 
-    if (mp->encap == LB_ENCAP_TYPE_L3DSR) {
+    if (mp->encap == LB_API_ENCAP_TYPE_L3DSR) {
         args.encap_args.dscp = (u8)(mp->dscp & 0x3F);
       }
-    else if ((mp->encap == LB_ENCAP_TYPE_NAT4)
-            ||(mp->encap == LB_ENCAP_TYPE_NAT6)) {
+    else if ((mp->encap == LB_API_ENCAP_TYPE_NAT4)
+            ||(mp->encap == LB_API_ENCAP_TYPE_NAT6)) {
         args.encap_args.srv_type = mp->type;
         args.encap_args.target_port = ntohs(mp->target_port);
       }
@@ -171,22 +174,22 @@ static void *vl_api_lb_add_del_vip_t_print
 {
   u8 * s;
   s = format (0, "SCRIPT: lb_add_del_vip ");
-  s = format (s, "%U ", format_ip46_prefix,
-              (ip46_address_t *)mp->ip_prefix, mp->prefix_length, IP46_TYPE_ANY);
+  s = format (s, "%U", format_vl_api_prefix,
+       &mp->pfx);
 
-  s = format (s, "%s ", (mp->encap == LB_ENCAP_TYPE_GRE4)? "gre4"
-              : (mp->encap == LB_ENCAP_TYPE_GRE6)? "gre6"
-              : (mp->encap == LB_ENCAP_TYPE_NAT4)? "nat4"
-              : (mp->encap == LB_ENCAP_TYPE_NAT6)? "nat6"
+  s = format (s, "%s ", (mp->encap == LB_API_ENCAP_TYPE_GRE4)? "gre4"
+              : (mp->encap == LB_API_ENCAP_TYPE_GRE6)? "gre6"
+              : (mp->encap == LB_API_ENCAP_TYPE_NAT4)? "nat4"
+              : (mp->encap == LB_API_ENCAP_TYPE_NAT6)? "nat6"
               : "l3dsr");
 
-  if (mp->encap==LB_ENCAP_TYPE_L3DSR)
+  if (mp->encap==LB_API_ENCAP_TYPE_L3DSR)
     {
       s = format (s, "dscp %u ", mp->dscp);
     }
 
-  if ((mp->encap==LB_ENCAP_TYPE_NAT4)
-      || (mp->encap==LB_ENCAP_TYPE_NAT6))
+  if ((mp->encap==LB_API_ENCAP_TYPE_NAT4)
+      || (mp->encap==LB_API_ENCAP_TYPE_NAT6))
     {
       s = format (s, "type %u ", mp->type);
       s = format (s, "port %u ", mp->port);
@@ -208,15 +211,15 @@ vl_api_lb_add_del_as_t_handler
   u32 vip_index;
   ip46_address_t vip_ip_prefix;
 
-  memcpy(&vip_ip_prefix.ip6, mp->vip_ip_prefix,
-         sizeof(vip_ip_prefix.ip6));
+  memcpy(&vip_ip_prefix, &mp->pfx,
+              sizeof(vip_ip_prefix));
 
   ip46_address_t as_address;
 
-  memcpy(&as_address.ip6, mp->as_address,
-         sizeof(as_address.ip6));
+  memcpy(&as_address, &mp->as_address,
+         sizeof(as_address));
 
-  if ((rv = lb_vip_find_index(&vip_ip_prefix, mp->vip_prefix_length,
+  if ((rv = lb_vip_find_index(&vip_ip_prefix, mp->pfx.len,
                               mp->protocol, ntohs(mp->port), &vip_index)))
     goto done;
 
@@ -233,16 +236,136 @@ static void *vl_api_lb_add_del_as_t_print
 (vl_api_lb_add_del_as_t *mp, void * handle)
 {
   u8 * s;
+  ip46_address_t address;
   s = format (0, "SCRIPT: lb_add_del_as ");
-  s = format (s, "%U ", format_ip46_prefix,
-              (ip46_address_t *)mp->vip_ip_prefix, mp->vip_prefix_length, IP46_TYPE_ANY);
-  s = format (s, "%U ", format_ip46_address,
-                (ip46_address_t *)mp->as_address, IP46_TYPE_ANY);
+  s = format (s, "%U ", format_vl_api_prefix,
+       &mp->pfx);
+  s = format(s, "%u ", mp->protocol);
+  if (ip_address_decode (&mp->as_address, &address) == IP46_TYPE_IP6)
+  s = format (s, "%U ", format_ip6_address,
+		(ip6_address_t *) & address.ip6);
+  else
+  s = format (s, "%U ", format_ip4_address,
+		(ip6_address_t *) & address.ip4);
   s = format (s, "%s ", mp->is_del?"del":"add");
   FINISH;
 }
 
 static void
+vl_api_lb_vip_dump_t_handler
+(vl_api_lb_vip_dump_t * mp)
+{
+
+  vl_api_registration_t *reg;
+  reg = vl_api_client_index_to_registration (mp->client_index);
+  if (!reg)
+    return;
+
+  lb_main_t *lbm = &lb_main;
+  vl_api_lb_vip_details_t * rmp;
+  int msg_size = 0;
+  lb_vip_t *vip = 0;
+
+  /* construct vip list */
+  pool_foreach(vip, lbm->vips, {
+      /* Hide dummy VIP */
+      if (vip != lbm->vips) {
+        msg_size = sizeof (*rmp);
+        rmp = vl_msg_api_alloc (msg_size);
+        memset (rmp, 0, msg_size);
+        rmp->_vl_msg_id =
+        htons (VL_API_LB_VIP_DETAILS + lbm->msg_id_base);
+        rmp->context = mp->context;
+
+        ip_address_encode(&vip->prefix, IP46_TYPE_ANY, &rmp->vip.pfx.address);
+        rmp->vip.pfx.len = vip->plen;
+        rmp->vip.protocol = htonl (vip->protocol);
+        rmp->vip.port = htons(vip->port);
+        rmp->encap = htonl(vip->type);
+        rmp->dscp = vip->encap_args.dscp;
+        rmp->srv_type = vip->encap_args.srv_type;
+        rmp->target_port = htons(vip->encap_args.target_port);
+        rmp->flow_table_length = htonl(vip->new_flow_table_mask + 1);
+
+        vl_api_send_msg (reg, (u8 *) rmp);
+      }
+  });
+
+
+}
+
+static void send_lb_as_details
+  (vl_api_registration_t * reg, u32 context, lb_vip_t * vip)
+{
+  vl_api_lb_as_details_t *rmp;
+  lb_main_t *lbm = &lb_main;
+  int msg_size = 0;
+  u32 *as_index;
+  u32 asindex = 0;
+
+  /* construct as list under this vip */
+  lb_as_t *as;
+
+  pool_foreach(as_index, vip->as_indexes, {
+      /* Hide dummy As for specific VIP */
+      if (*as_index != 0) {
+        as = &lbm->ass[*as_index];
+        msg_size = sizeof (*rmp);
+        rmp = vl_msg_api_alloc (msg_size);
+        memset (rmp, 0, msg_size);
+        rmp->_vl_msg_id =
+          htons (VL_API_LB_AS_DETAILS + lbm->msg_id_base);
+        rmp->context = context;
+        ip_address_encode(&vip->prefix, IP46_TYPE_ANY, (vl_api_address_t *)&rmp->vip.pfx.address);
+        rmp->vip.pfx.len = vip->plen;
+        rmp->vip.protocol = htonl (vip->protocol);
+        rmp->vip.port = htons(vip->port);
+        ip_address_encode(&as->address, IP46_TYPE_ANY, &rmp->app_srv);
+        rmp->flags = as->flags;
+        rmp->in_use_since = htonl(as->last_used);
+
+        vl_api_send_msg (reg, (u8 *) rmp);
+        asindex++;
+      }
+  });
+
+
+}
+
+static void
+vl_api_lb_as_dump_t_handler
+(vl_api_lb_as_dump_t * mp)
+{
+  lb_main_t *lbm = &lb_main;
+  lb_vip_t *vip = 0;
+  u8 dump_all = 0;
+  ip46_address_t prefix;
+
+  vl_api_registration_t *reg;
+  reg = vl_api_client_index_to_registration (mp->client_index);
+  if (!reg)
+    return;
+
+  clib_memcpy(&prefix.ip6, mp->pfx.address.un.ip6, sizeof(mp->pfx.address.un.ip6));
+
+  dump_all = (prefix.ip6.as_u64[0] == 0) && (prefix.ip6.as_u64[1] == 0);
+
+  /* *INDENT-OFF* */
+  pool_foreach(vip, lbm->vips,
+  ({
+    if ( dump_all
+        || ((prefix.as_u64[0] == vip->prefix.as_u64[0])
+        && (prefix.as_u64[1] == vip->prefix.as_u64[1])
+        && (mp->protocol == vip->protocol)
+        && (mp->port == vip->port)) )
+      {
+        send_lb_as_details(reg, mp->context, vip);
+      }
+  }));
+  /* *INDENT-ON* */
+}
+
+static void
 vl_api_lb_flush_vip_t_handler
 (vl_api_lb_flush_vip_t * mp)
 {
@@ -258,9 +381,9 @@ vl_api_lb_flush_vip_t_handler
       mp->protocol = ~0;
     }
 
-  memcpy (&(vip_prefix.ip6), mp->ip_prefix, sizeof(vip_prefix.ip6));
+  memcpy (&(vip_prefix.ip6), mp->pfx.address.un.ip6, sizeof(vip_prefix.ip6));
 
-  vip_plen = mp->prefix_length;
+  vip_plen = mp->pfx.len;
 
   rv = lb_vip_find_index(&vip_prefix, vip_plen, mp->protocol,
                          ntohs(mp->port), &vip_index);
@@ -275,9 +398,8 @@ static void *vl_api_lb_flush_vip_t_print
 {
   u8 * s;
   s = format (0, "SCRIPT: lb_add_del_vip ");
-  s = format (s, "%U ", format_ip46_prefix,
-              (ip46_address_t *)mp->ip_prefix, mp->prefix_length, IP46_TYPE_ANY);
-
+  s = format (s, "%U/%d", format_vl_api_address,
+       &mp->pfx.address, mp->pfx.len);
   s = format (s, "protocol %u ", mp->protocol);
   s = format (s, "port %u ", mp->port);
 
diff --git a/src/plugins/lb/lb.api b/src/plugins/lb/lb.api
index c24440936d3..867832df966 100644
--- a/src/plugins/lb/lb.api
+++ b/src/plugins/lb/lb.api
@@ -1,5 +1,5 @@
 option version = "1.0.0";
-import "vnet/ip/ip_types.api";
+import "plugins/lb/lb_types.api";
 
 /** \brief Configure Load-Balancer global parameters (unlike the CLI, both ip4_src_address and ip6_src_address need to be specified.
     @param client_index - opaque cookie to identify the sender
@@ -24,8 +24,7 @@ autoreply manual_print define lb_conf
 /** \brief Add a virtual address (or prefix)
     @param client_index - opaque cookie to identify the sender
     @param context - sender context, to match reply w/ request
-    @param ip_prefix - IP address (IPv4 in lower order 32 bits).
-    @param prefix_length - IP prefix length (96 + 'IPv4 prefix length' for IPv4).
+    @param pfx - ip prefix and length
     @param protocol - tcp or udp.
     @param port - destination port. (0) means 'all-port VIP'
     @param encap - Encap is ip4 GRE(0) or ip6 GRE(1) or L3DSR(2) or NAT4(3) or NAT6(4).
@@ -40,24 +39,22 @@ autoreply manual_print define lb_conf
 autoreply manual_print define lb_add_del_vip {
   u32 client_index;
   u32 context;
-  u8 ip_prefix[16];
-  u8 prefix_length;
-  u8 protocol;
+  vl_api_prefix_t pfx;
+  u8 protocol [default=255];
   u16 port;
-  u8 encap;
+  vl_api_lb_encap_type_t encap;
   u8 dscp;
-  u8 type;
+  vl_api_lb_srv_type_t type ; /* LB_API_SRV_TYPE_CLUSTERIP */
   u16 target_port;
   u16 node_port;
-  u32 new_flows_table_length;
-  u8 is_del;
+  u32 new_flows_table_length [default=1024];
+  bool is_del;
 };
 
 /** \brief Add an application server for a given VIP
     @param client_index - opaque cookie to identify the sender
     @param context - sender context, to match reply w/ request
-    @param vip_ip_prefix - VIP IP address (IPv4 in lower order 32 bits).
-    @param vip_prefix_length - VIP IP prefix length (96 + 'IPv4 prefix length' for IPv4).
+    @param pfx - ip prefix and length
     @param protocol - tcp or udp.
     @param port - destination port.
     @param as_address - The application server address (IPv4 in lower order 32 bits).
@@ -67,28 +64,82 @@ autoreply manual_print define lb_add_del_vip {
 autoreply manual_print define lb_add_del_as {
   u32 client_index;
   u32 context;
-  u8 vip_ip_prefix[16];
-  u8 vip_prefix_length;
-  u8 protocol;
+  vl_api_prefix_t pfx;
+  u8 protocol [default=255];
   u16 port;
-  u8 as_address[16];
-  u8 is_del;
-  u8 is_flush;
+  vl_api_address_t as_address;
+  bool is_del;
+  bool is_flush;
 };
 
 /** \brief Flush a given vip
     @param client_index - opaque cookie to identify the sender
     @param context - sender context, to match reply w/ request
-    @param ip_prefix - IP address (IPv4 in lower order 32 bits).
-    @param prefix_length - IP prefix length (96 + 'IPv4 prefix length' for IPv4).
+    @param pfx - ip prefix and length
     @param protocol - tcp or udp.
     @param port - destination port.
 */
 autoreply manual_print define lb_flush_vip {
   u32 client_index;
   u32 context;
-  u8 ip_prefix[16];
-  u8 prefix_length;
+  vl_api_prefix_t pfx;
+  u8 protocol;
+  u16 port;
+};
+
+/** \brief Dump all vips
+    @param client_index - opaque cookie to identify the sender
+    @param context - sender context, to match reply w/ request
+*/
+define lb_vip_dump{
+  u32 client_index;
+  u32 context;
+  vl_api_prefix_t pfx;
+  vl_api_prefix_matcher_t pfx_matcher;
+  u8 protocol [default=255];
+  u16 port;
+
+};
+
+/** \brief Reply all configured vip
+    @param context - sender context, to match reply w/ request
+    @param vip - all vip addrs.
+*/
+define lb_vip_details {
+  u32 context;
+  vl_api_lb_vip_t vip;
+  vl_api_lb_encap_type_t encap;
+  vl_api_ip_dscp_t dscp;
+  vl_api_lb_srv_type_t srv_type;
+  u16 target_port;
+  u16 flow_table_length;
+};
+
+/** \brief dump AS list per VIP or all ASs for all VIPs
+    @param client_index - opaque cookie to identify the sender
+    @param context - sender context, to match reply w/ request
+    @param pfx - ip prefix and length.
+    @param protocol - tcp or udp.
+    @param port - destination port.
+*/
+define lb_as_dump{
+  u32 client_index;
+  u32 context;
+  /* vip */
+  vl_api_prefix_t pfx;
   u8 protocol;
   u16 port;
 };
+
+/** \brief lb_as_details
+    @param context - sender context, to match reply w/ request
+    @param as - AS detail record
+*/
+define lb_as_details {
+  u32 context;
+  vl_api_lb_vip_t vip;
+  vl_api_address_t app_srv;
+  u8 flags;
+  u32 in_use_since;
+};
+
diff --git a/src/plugins/lb/lb.c b/src/plugins/lb/lb.c
index 3ac2b284ea6..b1e0b237478 100644
--- a/src/plugins/lb/lb.c
+++ b/src/plugins/lb/lb.c
@@ -860,7 +860,7 @@ static int
 lb_vip_prefix_index_alloc (lb_main_t *lbm)
 {
   /*
-   * Check for dynamically allocaetd instance number.
+   * Check for dynamically allocated instance number.
    */
   u32 bit;
 
diff --git a/src/plugins/lb/lb_plugin_doc.md b/src/plugins/lb/lb_plugin_doc.md
index 25a4cfa11df..5f6538974e9 100644
--- a/src/plugins/lb/lb_plugin_doc.md
+++ b/src/plugins/lb/lb_plugin_doc.md
@@ -3,8 +3,8 @@
 ## Version
 
 The load balancer plugin is currently in *beta* version.
-Both CLIs and APIs are subject to *heavy* changes.
-Wich also means feedback is really welcome regarding features, apis, etc...
+Both CLIs and APIs are subject to *heavy* changes,
+which also means feedback is really welcome regarding features, apis, etc...
 
 ## Overview
 
@@ -31,7 +31,7 @@ Meaning that for a given VIP, all AS addresses must be of the same family.
 
 3). IPv4/IPv6 + NAT4/NAT6 encap types:
 This type provides kube-proxy data plane on user space,
-which is used to replace linux kernal's kube-proxy based on iptables.
+which is used to replace linux kernel's kube-proxy based on iptables.
 
 Currently, load balancer plugin supports three service types:
 a) Cluster IP plus Port: support any protocols, including TCP, UDP.
@@ -55,11 +55,11 @@ Please refer to below for details:
 https://schd.ws/hosted_files/ossna2017/1e/VPP_K8S_GTPU_OSSNA.pdf
 
 
-## Performances
+## Performance
 
 The load balancer has been tested up to 1 millions flows and still forwards more
 than 3Mpps per core in such circumstances.
-Although 3Mpps seems already good, it is likely that performances will be improved
+Although 3Mpps seems already good, it is likely that performance will be improved
 in next versions.
 
 ## Configuration
@@ -77,10 +77,10 @@ ip4-src-address: the source address used to send encap. packets using IPv4 for G
 ip6-src-address: the source address used to send encap. packets using IPv6 for GRE6 mode.
                  or Node IP6 address for NAT6 mode.
 
-buckets:         the *per-thread* established-connexions-table number of buckets.
+buckets:         the *per-thread* established-connections-table number of buckets.
 
 timeout:         the number of seconds a connection will remain in the
-                 established-connexions-table while no packet for this flow
+                 established-connections-table while no packet for this flow
                  is received.
 
 ### Configure the VIPs
diff --git a/src/plugins/lb/lb_test.c b/src/plugins/lb/lb_test.c
index 4ac306bba1c..cc8cc58c0be 100644
--- a/src/plugins/lb/lb_test.c
+++ b/src/plugins/lb/lb_test.c
@@ -128,7 +128,9 @@ foreach_standard_reply_retval_handler;
 #define foreach_vpe_api_reply_msg                               \
   _(LB_CONF_REPLY, lb_conf_reply)                               \
   _(LB_ADD_DEL_VIP_REPLY, lb_add_del_vip_reply)                 \
-  _(LB_ADD_DEL_AS_REPLY, lb_add_del_as_reply)
+  _(LB_ADD_DEL_AS_REPLY, lb_add_del_as_reply)                   \
+  _(LB_VIP_DETAILS, lb_vip_details)                             \
+  _(LB_AS_DETAILS, lb_as_details)
 
 static int api_lb_conf (vat_main_t * vam)
 {
@@ -245,8 +247,8 @@ static int api_lb_add_del_vip (vat_main_t * vam)
     }
 
   M(LB_ADD_DEL_VIP, mp);
-  clib_memcpy (mp->ip_prefix, &ip_prefix, sizeof (ip_prefix));
-  mp->prefix_length = prefix_length;
+  clib_memcpy (mp->pfx.address.un.ip6, &ip_prefix.ip6, sizeof (ip_prefix.ip6));
+  mp->pfx.len = prefix_length;
   mp->protocol = (u8)protocol;
   mp->port = htons((u16)port);
   mp->encap = (u8)encap;
@@ -320,11 +322,11 @@ static int api_lb_add_del_as (vat_main_t * vam)
   }
 
   M(LB_ADD_DEL_AS, mp);
-  clib_memcpy (mp->vip_ip_prefix, &vip_prefix, sizeof (vip_prefix));
-  mp->vip_prefix_length = vip_plen;
+  clib_memcpy (mp->pfx.address.un.ip6, &vip_prefix.ip6, sizeof (vip_prefix.ip6));
+  mp->pfx.len = vip_plen;
   mp->protocol = (u8)protocol;
   mp->port = htons((u16)port);
-  clib_memcpy (mp->as_address, &as_addr, sizeof (as_addr));
+  clib_memcpy (&mp->as_address, &as_addr, sizeof (as_addr));
   mp->is_del = is_del;
   mp->is_flush = is_flush;
 
@@ -333,6 +335,121 @@ static int api_lb_add_del_as (vat_main_t * vam)
   return ret;
 }
 
+static void vl_api_lb_vip_details_t_handler
+  (vl_api_lb_vip_details_t * mp)
+{
+  vat_main_t *vam = &vat_main;
+  lb_main_t *lbm = &lb_main;
+  u32 i = 0;
+
+  u32 vip_count = pool_len(lbm->vips);
+
+  print (vam->ofp, "%11d", vip_count);
+
+  for (i=0; i<vip_count; i--)
+    {
+      print (vam->ofp, "%24U%14d%14d%18d",
+           format_ip46_address, &mp->vip.pfx.address, IP46_TYPE_ANY,
+           mp->vip.pfx.len,
+           mp->vip.protocol,
+           ntohs (mp->vip.port));
+    }
+}
+
+static int api_lb_vip_dump (vat_main_t * vam)
+{
+  vl_api_lb_vip_dump_t *mp;
+  int ret;
+
+  M(LB_VIP_DUMP, mp);
+
+  S(mp);
+  W (ret);
+  return ret;
+}
+
+static void vl_api_lb_as_details_t_handler
+  (vl_api_lb_as_details_t * mp)
+{
+  vat_main_t *vam = &vat_main;
+  lb_main_t *lbm = &lb_main;
+
+  //u32 i = 0;
+
+  print (vam->ofp, "%11d", pool_len(lbm->ass));
+/*
+  for (i=0; i<pool_len(lbm->ass); i--)
+    {
+      print (vam->ofp, "%24U%14d%14d%18d",
+           format_ip46_address, &mp->pfx.address, IP46_TYPE_ANY,
+           mp->pfx.len,
+           mp->pfx.protocol,
+           ntohs (mp->pfx.port),
+           ntohl(mp->app_srv),
+           mp->flags,
+           mp->in_use_;
+    }
+    */
+}
+
+static int api_lb_as_dump (vat_main_t * vam)
+{
+
+  unformat_input_t *line_input = vam->input;
+  vl_api_lb_as_dump_t *mp;
+  int ret;
+  ip46_address_t vip_prefix, as_addr;
+  u8 vip_plen;
+  ip46_address_t *as_array = 0;
+  u32 port = 0;
+  u8 protocol = 0;
+
+  if (!unformat(line_input, "%U", unformat_ip46_prefix,
+                &vip_prefix, &vip_plen, IP46_TYPE_ANY))
+  {
+      errmsg ("lb_add_del_as: invalid vip prefix\n");
+      return -99;
+  }
+
+  while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
+  {
+    if (unformat(line_input, "%U", unformat_ip46_address,
+                 &as_addr, IP46_TYPE_ANY))
+      {
+        vec_add1(as_array, as_addr);
+      }
+    else if (unformat(line_input, "protocol tcp"))
+      {
+          protocol = IP_PROTOCOL_TCP;
+      }
+    else if (unformat(line_input, "protocol udp"))
+      {
+          protocol = IP_PROTOCOL_UDP;
+      }
+    else if (unformat(line_input, "port %d", &port))
+      ;
+    else {
+        errmsg ("invalid arguments\n");
+        return -99;
+    }
+  }
+
+  if (!vec_len(as_array)) {
+    errmsg ("No AS address provided \n");
+    return -99;
+  }
+
+  M(LB_AS_DUMP, mp);
+  clib_memcpy (mp->pfx.address.un.ip6, &vip_prefix.ip6, sizeof (vip_prefix.ip6));
+  mp->pfx.len = vip_plen;
+  mp->protocol = (u8)protocol;
+  mp->port = htons((u16)port);
+
+  S(mp);
+  W (ret);
+  return ret;
+}
+
 /*
  * List of messages that the api test plugin sends,
  * and that the data plane plugin processes
@@ -347,7 +464,9 @@ _(lb_add_del_vip, "<prefix> "  \
                   "[type (nodeport|clusterip) target_port <n>] " \
                   "[new_len <n>] [del]")  \
 _(lb_add_del_as, "<vip-prefix> [protocol (tcp|udp) port <n>] "  \
-                 "[<address>] [del] [flush]")
+                 "[<address>] [del] [flush]")              \
+_(lb_vip_dump, "")          \
+_(lb_as_dump, "<vip-prefix> [protocol (tcp|udp) port <n>]")
 
 static void
 lb_api_hookup (vat_main_t *vam)
diff --git a/src/plugins/lb/lb_types.api b/src/plugins/lb/lb_types.api
new file mode 100644
index 00000000000..818e51462c5
--- /dev/null
+++ b/src/plugins/lb/lb_types.api
@@ -0,0 +1,73 @@
+/* Hey Emacs use -*- mode: C -*- */
+/*
+ * Copyright (c) 2019 Vinci Consulting Corp.  All Rights Reserved.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+ import "vnet/ip/ip_types.api";
+
+enum lb_srv_type
+{
+  LB_API_SRV_TYPE_CLUSTERIP = 0,
+  LB_API_SRV_TYPE_NODEPORT = 1,
+  LB_API_SRV_N_TYPES = 2,
+};
+
+enum lb_encap_type
+{
+  LB_API_ENCAP_TYPE_GRE4 = 0,
+  LB_API_ENCAP_TYPE_GRE6 = 1,
+  LB_API_ENCAP_TYPE_L3DSR = 2,
+  LB_API_ENCAP_TYPE_NAT4 = 3 ,
+  LB_API_ENCAP_TYPE_NAT6 =4,
+  LB_API_ENCAP_N_TYPES =5,
+};
+
+/* Lookup types */
+enum lb_lkp_type_t
+{
+  LB_API_LKP_SAME_IP_PORT = 0,
+  LB_API_LKP_DIFF_IP_PORT = 1,
+  LB_API_LKP_ALL_PORT_IP =2,
+  LB_API_LKP_N_TYPES =3,
+};
+
+enum lb_vip_type
+{
+  LB_API_VIP_TYPE_IP6_GRE6 = 0,
+  LB_API_VIP_TYPE_IP6_GRE4 = 1,
+  LB_API_VIP_TYPE_IP4_GRE6 = 2,
+  LB_API_VIP_TYPE_IP4_GRE4 = 3,
+  LB_API_VIP_TYPE_IP4_L3DSR = 4,
+  LB_API_VIP_TYPE_IP4_NAT4 = 5,
+  LB_API_VIP_TYPE_IP6_NAT6 = 6,
+  LB_API_VIP_N_TYPES = 7,
+};
+
+enum lb_nat_protocol
+{
+  LB_API_NAT_PROTOCOL_UDP = 0x06,
+  LB_API_NAT_PROTOCOL_TCP = 0x17,
+  LB_API_NAT_PROTOCOL_ANY = 0xffffffff,
+};
+
+/** \brief Define connection statistics structure
+    @param pfx - ip prefix and length
+    @param protocol - tcp or udp.
+    @param port - destination port.
+*/
+typeonly define lb_vip
+{
+  vl_api_prefix_t pfx;
+  vl_api_ip_proto_t protocol;
+  u16 port;
+};