feature: recover "show ip features" command

Removed by accident.

Change-Id: Ifebbe99eb2825cb6ee7d33d55cf3c087a9817f72
Signed-off-by: Damjan Marion <damarion@cisco.com>

1 files changed, 204 insertions, 0 deletions

diff --git a/vnet/vnet/feature/registration.c b/vnet/vnet/feature/registration.c
index 64a82673b15..5f59eed03a6 100644
--- a/vnet/vnet/feature/registration.c
+++ b/vnet/vnet/feature/registration.c
@@ -87,6 +87,8 @@
     vnet_get_config_data.
 */
 
+static const char *vnet_cast_names[] = VNET_CAST_NAMES;
+
 static int
 comma_split (u8 * s, u8 ** a, u8 ** b)
 {
@@ -299,6 +301,208 @@ again:
   return 0;
 }
 
+#define foreach_af_cast                                 \
+_(4, VNET_IP_RX_UNICAST_FEAT, "ip4 unicast")            \
+_(4, VNET_IP_RX_MULTICAST_FEAT, "ip4 multicast")        \
+_(4, VNET_IP_TX_FEAT, "ip4 output")                     \
+_(6, VNET_IP_RX_UNICAST_FEAT, "ip6 unicast")            \
+_(6, VNET_IP_RX_MULTICAST_FEAT, "ip6 multicast")        \
+_(6, VNET_IP_TX_FEAT, "ip6 output")
+
+/** Display the set of available ip features.
+    Useful for verifying that expected features are present
+*/
+
+static clib_error_t *
+show_ip_features_command_fn (vlib_main_t * vm,
+			     unformat_input_t * input,
+			     vlib_cli_command_t * cmd)
+{
+  ip4_main_t *im4 = &ip4_main;
+  ip6_main_t *im6 = &ip6_main;
+  int i;
+  char **features;
+
+  vlib_cli_output (vm, "Available IP feature nodes");
+
+#define _(a,c,s)                                        \
+  do {                                                  \
+    features = im##a->feature_nodes[c];                 \
+    vlib_cli_output (vm, "%s:", s);                     \
+    for (i = 0; i < vec_len(features); i++)             \
+      vlib_cli_output (vm, "  %s\n", features[i]);      \
+  } while(0);
+  foreach_af_cast;
+#undef _
+
+  return 0;
+}
+
+/*?
+ * This command is used to display the set of available IP features.
+ * This can be useful for verifying that expected features are present.
+ *
+ * @cliexpar
+ * Example of how to display the set of available IP features:
+ * @cliexstart{show ip features}
+ * Available IP feature nodes
+ * ip4 unicast:
+ *   ip4-inacl
+ *   ip4-source-check-via-rx
+ *   ip4-source-check-via-any
+ *   ip4-source-and-port-range-check-rx
+ *   ip4-policer-classify
+ *   ipsec-input-ip4
+ *   vpath-input-ip4
+ *   snat-in2out
+ *   snat-out2in
+ *   ip4-lookup
+ * ip4 multicast:
+ *   vpath-input-ip4
+ *   ip4-lookup-multicast
+ * ip4 output:
+ *   ip4-source-and-port-range-check-tx
+ *   interface-output
+ * ip6 unicast:
+ *   ip6-inacl
+ *   ip6-policer-classify
+ *   ipsec-input-ip6
+ *   l2tp-decap
+ *   vpath-input-ip6
+ *   sir-to-ila
+ *   ip6-lookup
+ * ip6 multicast:
+ *   vpath-input-ip6
+ *   ip6-lookup
+ * ip6 output:
+ *   interface-output
+ * @cliexend
+?*/
+/* *INDENT-OFF* */
+VLIB_CLI_COMMAND (show_ip_features_command, static) = {
+  .path = "show ip features",
+  .short_help = "show ip features",
+  .function = show_ip_features_command_fn,
+};
+/* *INDENT-ON* */
+
+/** Display the set of IP features configured on a specific interface
+ */
+
+void
+ip_interface_features_show (vlib_main_t * vm,
+			    const char *pname,
+			    vnet_feature_config_main_t * cm, u32 sw_if_index)
+{
+  u32 node_index, current_config_index;
+  vnet_cast_t cast;
+  vnet_config_main_t *vcm;
+  vnet_config_t *cfg;
+  u32 cfg_index;
+  vnet_config_feature_t *feat;
+  vlib_node_t *n;
+  int i;
+
+  vlib_cli_output (vm, "%s feature paths configured on %U...",
+		   pname, format_vnet_sw_if_index_name,
+		   vnet_get_main (), sw_if_index);
+
+  for (cast = VNET_IP_RX_UNICAST_FEAT; cast < VNET_N_IP_FEAT; cast++)
+    {
+      vcm = &(cm[cast].config_main);
+
+      vlib_cli_output (vm, "\n%s %s:", pname, vnet_cast_names[cast]);
+
+      if (NULL == cm[cast].config_index_by_sw_if_index ||
+	  vec_len (cm[cast].config_index_by_sw_if_index) < sw_if_index)
+	{
+	  vlib_cli_output (vm, "none configured");
+	  continue;
+	}
+
+      current_config_index = vec_elt (cm[cast].config_index_by_sw_if_index,
+				      sw_if_index);
+
+      ASSERT (current_config_index
+	      < vec_len (vcm->config_pool_index_by_user_index));
+
+      cfg_index = vcm->config_pool_index_by_user_index[current_config_index];
+      cfg = pool_elt_at_index (vcm->config_pool, cfg_index);
+
+      for (i = 0; i < vec_len (cfg->features); i++)
+	{
+	  feat = cfg->features + i;
+	  node_index = feat->node_index;
+	  n = vlib_get_node (vm, node_index);
+	  vlib_cli_output (vm, "  %v", n->name);
+	}
+    }
+}
+
+static clib_error_t *
+show_ip_interface_features_command_fn (vlib_main_t * vm,
+				       unformat_input_t * input,
+				       vlib_cli_command_t * cmd)
+{
+  vnet_main_t *vnm = vnet_get_main ();
+  ip4_main_t *im4 = &ip4_main;
+  ip_lookup_main_t *lm4 = &im4->lookup_main;
+  ip6_main_t *im6 = &ip6_main;
+  ip_lookup_main_t *lm6 = &im6->lookup_main;
+
+  ip_lookup_main_t *lm;
+  u32 sw_if_index, af;
+
+  if (!unformat (input, "%U", unformat_vnet_sw_interface, vnm, &sw_if_index))
+    return clib_error_return (0, "Interface not specified...");
+
+  vlib_cli_output (vm, "IP feature paths configured on %U...",
+		   format_vnet_sw_if_index_name, vnm, sw_if_index);
+
+  for (af = 0; af < 2; af++)
+    {
+      if (af == 0)
+	lm = lm4;
+      else
+	lm = lm6;
+
+      ip_interface_features_show (vm, (af == 0) ? "ip4" : "ip6",
+				  lm->feature_config_mains, sw_if_index);
+    }
+
+  return 0;
+}
+
+/*?
+ * This command is used to display the set of IP features configured
+ * on a specific interface
+ *
+ * @cliexpar
+ * Example of how to display the set of available IP features on an interface:
+ * @cliexstart{show ip interface features GigabitEthernet2/0/0}
+ * IP feature paths configured on GigabitEthernet2/0/0...
+ * ipv4 unicast:
+ *   ip4-lookup
+ * ipv4 multicast:
+ *   ip4-lookup-multicast
+ * ipv4 multicast:
+ *   interface-output
+ * ipv6 unicast:
+ *   ip6-lookup
+ * ipv6 multicast:
+ *   ip6-lookup
+ * ipv6 multicast:
+ *   interface-output
+ * @cliexend
+?*/
+/* *INDENT-OFF* */
+VLIB_CLI_COMMAND (show_ip_interface_features_command, static) = {
+  .path = "show ip interface features",
+  .short_help = "show ip interface features <interface>",
+  .function = show_ip_interface_features_command_fn,
+};
+/* *INDENT-ON* */
+
 /*
  * fd.io coding-style-patch-verification: ON
  *