udp: move cli to separate file

Type: refactor

Signed-off-by: Florin Coras <fcoras@cisco.com>
Change-Id: I2057ebb4b6a4af3ef8fd9b73aadfa00d63bae618

src/vnet/CMakeLists.txt

@@ -693,6 +693,7 @@ list(APPEND VNET_API_FILES tcp/tcp.api)
 ##############################################################################
 list(APPEND VNET_SOURCES
   udp/udp.c
+  udp/udp_cli.c
   udp/udp_input.c
   udp/udp_format.c
   udp/udp_local.c

src/vnet/udp/udp.h

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017-2019 Cisco and/or its affiliates.
+ * 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:
@@ -269,7 +269,6 @@ udp_connection_clone_safe (u32 connection_index, u32 thread_index)
   return new_c;
 }
 
-
 always_inline udp_dst_port_info_t *
 udp_get_dst_port_info (udp_main_t * um, udp_dst_port_t dst_port, u8 is_ip4)
 {
@@ -279,6 +278,7 @@ udp_get_dst_port_info (udp_main_t * um, udp_dst_port_t dst_port, u8 is_ip4)
 
 format_function_t format_udp_header;
 format_function_t format_udp_rx_trace;
+format_function_t format_udp_connection;
 unformat_function_t unformat_udp_header;
 
 void udp_add_dst_port (udp_main_t * um, udp_dst_port_t dst_port,
@@ -289,7 +289,6 @@ void udp_register_dst_port (vlib_main_t * vm,
 void udp_unregister_dst_port (vlib_main_t * vm,
 			      udp_dst_port_t dst_port, u8 is_ip4);
 bool udp_is_valid_dst_port (udp_dst_port_t dst_port, u8 is_ip4);
-
 void udp_connection_share_port (u16 lcl_port, u8 is_ip4);
 
 void udp_punt_unknown (vlib_main_t * vm, u8 is_ip4, u8 is_add);

src/vnet/udp/udp_cli.c

@@ -0,0 +1,177 @@
+/*
+ * Copyright (c) 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/udp/udp.h>
+
+u8 *
+format_udp_connection_id (u8 * s, va_list * args)
+{
+  udp_connection_t *uc = va_arg (*args, udp_connection_t *);
+  if (!uc)
+    return s;
+  if (uc->c_is_ip4)
+    s = format (s, "[%u:%u][%s] %U:%d->%U:%d", uc->c_thread_index,
+		uc->c_s_index, "U", format_ip4_address, &uc->c_lcl_ip4,
+		clib_net_to_host_u16 (uc->c_lcl_port), format_ip4_address,
+		&uc->c_rmt_ip4, clib_net_to_host_u16 (uc->c_rmt_port));
+  else
+    s = format (s, "[%u:%u][%s] %U:%d->%U:%d", uc->c_thread_index,
+		uc->c_s_index, "U", format_ip6_address, &uc->c_lcl_ip6,
+		clib_net_to_host_u16 (uc->c_lcl_port), format_ip6_address,
+		&uc->c_rmt_ip6, clib_net_to_host_u16 (uc->c_rmt_port));
+  return s;
+}
+
+static const char *udp_connection_flags_str[] = {
+#define _(sym, str) str,
+  foreach_udp_connection_flag
+#undef _
+};
+
+static u8 *
+format_udp_connection_flags (u8 * s, va_list * args)
+{
+  udp_connection_t *uc = va_arg (*args, udp_connection_t *);
+  int i, last = -1;
+
+  for (i = 0; i < UDP_CONN_N_FLAGS; i++)
+    if (uc->flags & (1 << i))
+      last = i;
+  for (i = 0; i < last; i++)
+    {
+      if (uc->flags & (1 << i))
+	s = format (s, "%s, ", udp_connection_flags_str[i]);
+    }
+  if (last >= 0)
+    s = format (s, "%s", udp_connection_flags_str[last]);
+  return s;
+}
+
+static u8 *
+format_udp_vars (u8 * s, va_list * args)
+{
+  udp_connection_t *uc = va_arg (*args, udp_connection_t *);
+  s = format (s, " index %u flags: %U", uc->c_c_index,
+	      format_udp_connection_flags, uc);
+
+  if (!(uc->flags & UDP_CONN_F_LISTEN))
+    s = format (s, "\n");
+  return s;
+}
+
+u8 *
+format_udp_connection (u8 * s, va_list * args)
+{
+  udp_connection_t *uc = va_arg (*args, udp_connection_t *);
+  u32 verbose = va_arg (*args, u32);
+  if (!uc)
+    return s;
+  s = format (s, "%-50U", format_udp_connection_id, uc);
+  if (verbose)
+    {
+      s = format (s, "%-15s",
+		  (uc->flags & UDP_CONN_F_LISTEN) ? "LISTEN" : "OPENED", uc);
+      if (verbose > 1)
+	s = format (s, "\n%U", format_udp_vars, uc);
+    }
+  return s;
+}
+
+static clib_error_t *
+udp_config_fn (vlib_main_t * vm, unformat_input_t * input)
+{
+  udp_main_t *um = &udp_main;
+  u32 tmp;
+
+  while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
+    {
+      if (unformat (input, "mtu %u", &tmp))
+	um->default_mtu = tmp;
+      else
+	return clib_error_return (0, "unknown input `%U'",
+				  format_unformat_error, input);
+    }
+  return 0;
+}
+
+VLIB_CONFIG_FUNCTION (udp_config_fn, "udp");
+
+static clib_error_t *
+show_udp_punt_fn (vlib_main_t * vm, unformat_input_t * input,
+		  vlib_cli_command_t * cmd_arg)
+{
+  udp_main_t *um = vnet_get_udp_main ();
+
+  clib_error_t *error = NULL;
+
+  if (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
+    return clib_error_return (0, "unknown input `%U'", format_unformat_error,
+			      input);
+
+  udp_dst_port_info_t *port_info;
+  if (um->punt_unknown4)
+    {
+      vlib_cli_output (vm, "IPv4 UDP punt: enabled");
+    }
+  else
+    {
+      u8 *s = NULL;
+      vec_foreach (port_info, um->dst_port_infos[UDP_IP4])
+      {
+	if (udp_is_valid_dst_port (port_info->dst_port, 1))
+	  {
+	    s = format (s, (!s) ? "%d" : ", %d", port_info->dst_port);
+	  }
+      }
+      s = format (s, "%c", 0);
+      vlib_cli_output (vm, "IPV4 UDP ports punt : %s", s);
+    }
+
+  if (um->punt_unknown6)
+    {
+      vlib_cli_output (vm, "IPv6 UDP punt: enabled");
+    }
+  else
+    {
+      u8 *s = NULL;
+      vec_foreach (port_info, um->dst_port_infos[UDP_IP6])
+      {
+	if (udp_is_valid_dst_port (port_info->dst_port, 01))
+	  {
+	    s = format (s, (!s) ? "%d" : ", %d", port_info->dst_port);
+	  }
+      }
+      s = format (s, "%c", 0);
+      vlib_cli_output (vm, "IPV6 UDP ports punt : %s", s);
+    }
+
+  return (error);
+}
+/* *INDENT-OFF* */
+VLIB_CLI_COMMAND (show_tcp_punt_command, static) =
+{
+  .path = "show udp punt",
+  .short_help = "show udp punt [ipv4|ipv6]",
+  .function = show_udp_punt_fn,
+};
+/* *INDENT-ON* */
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */

src/vnet/udp/udp_input.c

@@ -300,7 +300,6 @@ udp46_input_inline (vlib_main_t * vm, vlib_node_runtime_t * node,
   return frame->n_vectors;
 }
 
-
 static uword
 udp4_input (vlib_main_t * vm, vlib_node_runtime_t * node,
 	    vlib_frame_t * frame)