L3 proxy FIB source for container networking

Change-Id: I4164c4c19c8dbfd73e6ddf94a12056325cc093b9
Signed-off-by: Neale Ranns <nranns@cisco.com>
Signed-off-by: Andrew Yourtchenko <ayourtch@gmail.com>

1 files changed, 79 insertions, 0 deletions

diff --git a/src/vnet/ip/lookup.c b/src/vnet/ip/lookup.c
index 856c4942ea4..61350b4f0d8 100644
--- a/src/vnet/ip/lookup.c
+++ b/src/vnet/ip/lookup.c
@@ -49,6 +49,7 @@
 #include <vnet/dpo/punt_dpo.h>
 #include <vnet/dpo/receive_dpo.h>
 #include <vnet/dpo/ip_null_dpo.h>
+#include <vnet/dpo/l3_proxy_dpo.h>
 #include <vnet/ip/ip6_neighbor.h>
 
 /**
@@ -1433,6 +1434,84 @@ VLIB_CLI_COMMAND (ip_probe_neighbor_command, static) = {
 };
 /* *INDENT-ON* */
 
+clib_error_t *
+ip_container_cmd (vlib_main_t * vm,
+		  unformat_input_t * main_input, vlib_cli_command_t * cmd)
+{
+  unformat_input_t _line_input, *line_input = &_line_input;
+  fib_prefix_t pfx;
+
+  u32 is_del;
+  vnet_main_t *vnm;
+  u32 fib_index;
+  u32 sw_if_index;
+
+  vnm = vnet_get_main ();
+  is_del = 0;
+  sw_if_index = ~0;
+
+  /* Get a line of input. */
+  if (!unformat_user (main_input, unformat_line_input, line_input))
+    return 0;
+
+  while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
+    {
+      if (unformat (line_input, "%U", unformat_ip4_address, &pfx.fp_addr.ip4))
+	{
+	  pfx.fp_proto = FIB_PROTOCOL_IP4;
+	  pfx.fp_len = 32;
+	}
+      else if (unformat (line_input, "%U",
+			 unformat_ip6_address, &pfx.fp_addr.ip6))
+	{
+	  pfx.fp_proto = FIB_PROTOCOL_IP6;
+	  pfx.fp_len = 128;
+	}
+      else if (unformat (line_input, "%U",
+			 unformat_vnet_sw_interface, vnm, &sw_if_index))
+	;
+      else if (unformat (line_input, "del"))
+	is_del = 1;
+      else
+	return (clib_error_return (0, "unknown input '%U'",
+				   format_unformat_error, line_input));
+    }
+
+  if (~0 == sw_if_index)
+    {
+      return (clib_error_return (0, "no interface"));
+    }
+
+  fib_index = fib_table_get_table_id_for_sw_if_index (pfx.fp_proto,
+						      sw_if_index);
+
+  if (is_del)
+    fib_table_entry_special_remove (fib_index, &pfx, FIB_SOURCE_PROXY);
+  else
+    {
+      dpo_id_t proxy_dpo = DPO_INVALID;
+
+      l3_proxy_dpo_add_or_lock (fib_proto_to_dpo (pfx.fp_proto),
+				sw_if_index, &proxy_dpo);
+
+      fib_table_entry_special_dpo_add (fib_index,
+				       &pfx,
+				       FIB_SOURCE_PROXY,
+				       FIB_ENTRY_FLAG_EXCLUSIVE, &proxy_dpo);
+    }
+
+  return (NULL);
+}
+
+/* *INDENT-OFF* */
+VLIB_CLI_COMMAND (ip_container_command_node, static) = {
+  .path = "ip container",
+  .function = ip_container_cmd,
+  .short_help = "ip container <address> <interface>",
+  .is_mp_safe = 1,
+};
+/* *INDENT-ON* */
+
 /*
  * fd.io coding-style-patch-verification: ON
  *