ONE-2: Add new LISP dump API for lisp gpe

API:
	lisp_gpe_enable_disable_dump

Change-Id: I1c8e78f00f9a3f99c1f2f54884af565292e4ccf8
Signed-off-by: Andrej Kozemcak <akozemca@cisco.com>

5 files changed, 130 insertions, 2 deletions

diff --git a/vnet/vnet/lisp-gpe/lisp_gpe.c b/vnet/vnet/lisp-gpe/lisp_gpe.c
index 6ccc5f0d32e..4c39bf97cae 100644
--- a/vnet/vnet/lisp-gpe/lisp_gpe.c
+++ b/vnet/vnet/lisp-gpe/lisp_gpe.c
@@ -445,6 +445,14 @@ VLIB_CLI_COMMAND (show_lisp_gpe_tunnel_command, static) = {
     .function = show_lisp_gpe_tunnel_command_fn,
 };
 
+u8
+vnet_lisp_gpe_enable_disable_status(void)
+{
+  lisp_gpe_main_t * lgm = &lisp_gpe_main;
+
+  return lgm->is_en;
+}
+
 clib_error_t *
 vnet_lisp_gpe_enable_disable (vnet_lisp_gpe_enable_disable_args_t * a)
 {
@@ -471,6 +479,8 @@ vnet_lisp_gpe_enable_disable (vnet_lisp_gpe_enable_disable_args_t * a)
         {
           /* ask cp to re-add ifaces and defaults */
         }
+
+      lgm->is_en = 1;
     }
   else
     {
@@ -509,6 +519,7 @@ vnet_lisp_gpe_enable_disable (vnet_lisp_gpe_enable_disable_args_t * a)
         vnet_lisp_gpe_add_del_iface(ai, 0);
       }
       vec_free(table_ids);
+      lgm->is_en = 0;
     }
 
   return 0;
diff --git a/vnet/vnet/lisp-gpe/lisp_gpe.h b/vnet/vnet/lisp-gpe/lisp_gpe.h
index 329083af631..cba779525a8 100644
--- a/vnet/vnet/lisp-gpe/lisp_gpe.h
+++ b/vnet/vnet/lisp-gpe/lisp_gpe.h
@@ -158,6 +158,7 @@ typedef struct lisp_gpe_main
   ip6_main_t * im6;
   ip_lookup_main_t * lm4;
   ip_lookup_main_t * lm6;
+  u8 is_en;
 } lisp_gpe_main_t;
 
 lisp_gpe_main_t lisp_gpe_main;
@@ -195,6 +196,8 @@ typedef struct
   u32 vni;      /* host byte order */
 } vnet_lisp_gpe_add_del_iface_args_t;
 
+u8
+vnet_lisp_gpe_enable_disable_status(void);
 void
 vnet_lisp_gpe_add_del_iface (vnet_lisp_gpe_add_del_iface_args_t *a,
 			     u32 * hw_if_indexp);
diff --git a/vpp-api-test/vat/api_format.c b/vpp-api-test/vat/api_format.c
index 548959edb3b..c36e0591b39 100644
--- a/vpp-api-test/vat/api_format.c
+++ b/vpp-api-test/vat/api_format.c
@@ -2113,6 +2113,36 @@ vl_api_lisp_map_resolver_details_t_handler_json (
     }
 }
 
+static void
+vl_api_lisp_gpe_enable_disable_status_details_t_handler
+(vl_api_lisp_gpe_enable_disable_status_details_t *mp)
+{
+    vat_main_t *vam = &vat_main;
+
+    fformat(vam->ofp, "%=20s\n",
+            mp->is_en ? "enable" : "disable");
+}
+
+static void
+vl_api_lisp_gpe_enable_disable_status_details_t_handler_json
+(vl_api_lisp_gpe_enable_disable_status_details_t *mp)
+{
+    vat_main_t *vam = &vat_main;
+    vat_json_node_t *node = NULL;
+    u8 *str = NULL;
+
+    str = format(0, "%s", mp->is_en ? "enable" : "disable");
+
+    if (VAT_JSON_ARRAY != vam->json_tree.type) {
+        ASSERT(VAT_JSON_NONE == vam->json_tree.type);
+        vat_json_init_array(&vam->json_tree);
+    }
+    node = vat_json_array_add(&vam->json_tree);
+
+    vat_json_init_object(node);
+    vat_json_object_add_string_copy(node, "lisp_gpe", str);
+}
+
 #define vl_api_vnet_ip4_fib_counters_t_endian vl_noop_handler
 #define vl_api_vnet_ip4_fib_counters_t_print vl_noop_handler
 #define vl_api_vnet_ip6_fib_counters_t_endian vl_noop_handler
@@ -2379,7 +2409,9 @@ _(LISP_GPE_ADD_DEL_IFACE_REPLY, lisp_gpe_add_del_iface_reply)           \
 _(LISP_LOCATOR_SET_DETAILS, lisp_locator_set_details)                   \
 _(LISP_LOCAL_EID_TABLE_DETAILS, lisp_local_eid_table_details)           \
 _(LISP_GPE_TUNNEL_DETAILS, lisp_gpe_tunnel_details)                     \
-_(LISP_MAP_RESOLVER_DETAILS, lisp_map_resolver_details)
+_(LISP_MAP_RESOLVER_DETAILS, lisp_map_resolver_details)                 \
+_(LISP_GPE_ENABLE_DISABLE_STATUS_DETAILS,                               \
+  lisp_gpe_enable_disable_status_details)
 
 /* M: construct, but don't yet send a message */
 
@@ -10300,6 +10332,35 @@ api_lisp_map_resolver_dump(vat_main_t *vam)
     return 0;
 }
 
+static int
+api_lisp_gpe_enable_disable_status_dump(vat_main_t *vam)
+{
+    vl_api_lisp_gpe_enable_disable_status_dump_t *mp;
+    f64 timeout = ~0;
+
+    if (!vam->json_output) {
+        fformat(vam->ofp, "%=20s\n",
+                "lisp gpe");
+    }
+
+    M(LISP_GPE_ENABLE_DISABLE_STATUS_DUMP,
+      lisp_gpe_enable_disable_status_dump);
+    /* send it... */
+    S;
+
+    /* Use a control ping for synchronization */
+    {
+        vl_api_control_ping_t * mp;
+        M(CONTROL_PING, control_ping);
+        S;
+    }
+    /* Wait for a reply... */
+    W;
+
+    /* NOTREACHED */
+    return 0;
+}
+
 static int q_or_quit (vat_main_t * vam)
 {
     longjmp (vam->jump_buf, 1);
@@ -10792,7 +10853,8 @@ _(lisp_gpe_add_del_iface, "up|down")                                    \
 _(lisp_locator_set_dump, "")                                            \
 _(lisp_local_eid_table_dump, "")                                        \
 _(lisp_gpe_tunnel_dump, "")                                             \
-_(lisp_map_resolver_dump, "")
+_(lisp_map_resolver_dump, "")                                           \
+_(lisp_gpe_enable_disable_status_dump, "")
 
 /* List of command functions, CLI names map directly to functions */
 #define foreach_cli_function                                    \
diff --git a/vpp/api/api.c b/vpp/api/api.c
index e33e24d25ea..18c00bd3d22 100644
--- a/vpp/api/api.c
+++ b/vpp/api/api.c
@@ -331,6 +331,8 @@ _(LISP_LOCATOR_SET_DUMP, lisp_locator_set_dump)                         \
 _(LISP_LOCAL_EID_TABLE_DUMP, lisp_local_eid_table_dump)                 \
 _(LISP_GPE_TUNNEL_DUMP, lisp_gpe_tunnel_dump)                           \
 _(LISP_MAP_RESOLVER_DUMP, lisp_map_resolver_dump)                       \
+_(LISP_GPE_ENABLE_DISABLE_STATUS_DUMP,                                  \
+  lisp_gpe_enable_disable_status_dump)                                  \
 _(SR_MULTICAST_MAP_ADD_DEL, sr_multicast_map_add_del)
 
 #define QUOTE_(x) #x
@@ -5171,6 +5173,38 @@ vl_api_lisp_map_resolver_dump_t_handler (
 
 }
 
+static void
+send_lisp_gpe_enable_disable_details (unix_shared_memory_queue_t *q,
+                                      u32 context)
+{
+    vl_api_lisp_gpe_enable_disable_status_details_t *rmp = NULL;
+    u8 is_en;
+
+    rmp = vl_msg_api_alloc (sizeof (*rmp));
+    memset (rmp, 0, sizeof (*rmp));
+    rmp->_vl_msg_id = ntohs(VL_API_LISP_GPE_ENABLE_DISABLE_STATUS_DETAILS);
+
+    is_en = vnet_lisp_gpe_enable_disable_status();
+    rmp->is_en = is_en;
+    rmp->context = context;
+
+    vl_msg_api_send_shmem (q, (u8 *)&rmp);
+}
+
+static void
+vl_api_lisp_gpe_enable_disable_status_dump_t_handler
+(vl_api_lisp_gpe_enable_disable_status_dump_t *mp)
+{
+    unix_shared_memory_queue_t * q = NULL;
+
+    q = vl_api_client_index_to_input_queue (mp->client_index);
+    if (q == 0) {
+        return;
+    }
+
+    send_lisp_gpe_enable_disable_details(q, mp->context);
+}
+
 static void 
 vl_api_interface_name_renumber_t_handler (vl_api_interface_name_renumber_t *mp)
 {
diff --git a/vpp/api/vpe.api b/vpp/api/vpe.api
index 9d0f6b7f469..6ecb15fb710 100644
--- a/vpp/api/vpe.api
+++ b/vpp/api/vpe.api
@@ -2460,6 +2460,24 @@ define lisp_map_resolver_dump {
     u32 context;
 };
 
+/** \brief Status of lisp-gpe protocol, enable or disable
+    @param context - sender context, to match reply w/ request
+    @param is_en - enable protocol if non-zero, else disable
+*/
+manual_java define lisp_gpe_enable_disable_status_details {
+    u32 context;
+    u8  is_en;
+};
+
+/** \brief Request for lisp-gpe protocol status
+    @param client_index - opaque cookie to identify the sender
+    @param context - sender context, to match reply w/ request
+*/
+define lisp_gpe_enable_disable_status_dump {
+    u32 client_index;
+    u32 context;
+};
+
 /* Gross kludge, DGMS */
 define interface_name_renumber {
     u32 client_index;