[HICN-574] Host stack plugin for VPP.

Signed-off-by: Mauro Sardara <msardara@cisco.com>
Change-Id: I8d8fdffef31a7013265d6529c5f52f3d5ec70d18
Signed-off-by: Mauro Sardara <msardara@cisco.com>
Signed-off-by: Mauro <you@example.com>
Signed-off-by: Mauro Sardara <msardara@cisco.com>

1 files changed, 142 insertions, 0 deletions

diff --git a/hicn-plugin/src/network/strategies/strategy_mw_cli.c b/hicn-plugin/src/network/strategies/strategy_mw_cli.c
new file mode 100644
index 000000000..636d7effa
--- /dev/null
+++ b/hicn-plugin/src/network/strategies/strategy_mw_cli.c
@@ -0,0 +1,142 @@
+/*
+ * Copyright (c) 2017-2020 Cisco and/or its affiliates.
+ * 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.
+ */
+
+#include <vnet/vnet.h>
+#include <vnet/dpo/dpo.h>
+#include <vlib/vlib.h>
+#include <vnet/fib/fib_entry.h>
+#include <vnet/fib/fib_table.h>
+
+#include "../strategy_dpo_manager.h"
+#include "../faces/face.h"
+#include "../error.h"
+#include "../route.h"
+#include "dpo_mw.h"
+
+static clib_error_t *
+hicn_mw_strategy_cli_set_weight_command_fn (vlib_main_t * vm,
+					    unformat_input_t * main_input,
+					    vlib_cli_command_t * cmd)
+{
+  clib_error_t *cl_err = 0;
+  int ret = HICN_ERROR_NONE;
+  fib_prefix_t prefix;
+  hicn_face_id_t faceid = HICN_FACE_NULL;
+  u32 fib_index;
+  u32 weight = HICN_PARAM_FIB_ENTRY_NHOP_WGHT_DFLT;
+  hicn_dpo_ctx_t *hicn_dpo_ctx;
+  const dpo_id_t *hicn_dpo_id;
+
+  /* Get a line of input. */
+  unformat_input_t _line_input, *line_input = &_line_input;
+  if (unformat_user (main_input, unformat_line_input, line_input))
+    {
+      while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
+	{
+	  if (unformat (line_input, "prefix %U/%u", unformat_ip46_address,
+			&prefix.fp_addr, IP46_TYPE_ANY, &prefix.fp_len))
+	    ;
+	  else if (unformat (line_input, "face %u", &faceid))
+	    ;
+	  else if (unformat (line_input, "weight %u", &weight))
+	    ;
+	  else
+	    {
+	      return clib_error_return (0, "%s",
+					get_error_string
+					(HICN_ERROR_CLI_INVAL));
+	    }
+
+	}
+    }
+
+  if (((weight < 0) || (weight > HICN_PARAM_FIB_ENTRY_NHOP_WGHT_MAX)))
+    {
+      cl_err = clib_error_return (0,
+				  "Next-hop weight must be between 0 and %d",
+				  (int) HICN_PARAM_FIB_ENTRY_NHOP_WGHT_MAX);
+      goto done;
+    }
+
+  if (((ip46_address_is_zero (&prefix.fp_addr)) || faceid == HICN_FACE_NULL))
+    {
+      cl_err =
+	clib_error_return (0, "Please specify prefix and a valid faceid...");
+      goto done;
+    }
+
+  prefix.fp_proto =
+    ip46_address_is_ip4 (&prefix.
+			 fp_addr) ? FIB_PROTOCOL_IP4 : FIB_PROTOCOL_IP6;
+  ret = hicn_route_get_dpo (&prefix, &hicn_dpo_id, &fib_index);
+
+  if (ret == HICN_ERROR_NONE)
+    {
+      hicn_dpo_ctx = hicn_strategy_dpo_ctx_get (hicn_dpo_id->dpoi_index);
+
+      if (hicn_dpo_ctx == NULL
+	  || hicn_dpo_id->dpoi_type != hicn_dpo_strategy_mw_get_type ())
+	{
+	  cl_err = clib_error_return (0, get_error_string (ret));
+	  goto done;
+	}
+
+      hicn_strategy_mw_ctx_t *mw_dpo =
+	(hicn_strategy_mw_ctx_t *) hicn_dpo_ctx;
+      int idx = ~0;
+      for (int i = 0; i < hicn_dpo_ctx->entry_count; i++)
+	if (hicn_dpo_ctx->next_hops[i] == faceid)
+	  idx = i;
+
+      if (idx == ~0)
+	{
+	  cl_err =
+	    clib_error_return (0,
+			       get_error_string
+			       (HICN_ERROR_STRATEGY_NH_NOT_FOUND));
+	  goto done;
+	}
+
+      mw_dpo->weight[idx] = weight;
+    }
+  else
+    {
+      cl_err = clib_error_return (0, get_error_string (ret));
+
+    }
+
+done:
+
+  return (cl_err);
+
+}
+
+/* cli declaration for 'strategy mw' */
+/* *INDENT-OFF* */
+VLIB_CLI_COMMAND(hicn_mw_strategy_cli_set_weight_command, static)=
+{
+  .path = "hicn strategy mw set",
+  .short_help = "hicn strategy mw set prefix <prefix> face <face_id> weight <weight>",
+  .function = hicn_mw_strategy_cli_set_weight_command_fn,
+};
+/* *INDENT-ON* */
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */