From: Kirill A. Khalitov <kirill.khalitov@46labs.com>
Date: Thu, 27 Mar 2025 10:59:58 +0000 (+0100)
Subject: vnet: add vapi interface feature enablement check function
X-Git-Tag: v25.10-rc0~47
X-Git-Url: https://gerrit.fd.io/r/gitweb?a=commitdiff_plain;h=6022e9566f0d84afdd35e95a3d9f458f5a3d2e88;p=vpp.git

vnet: add vapi interface feature enablement check function

Type: improvement

Change-Id: I813c832cf6673eae91bd38ab60e7f19a609a5025
Signed-off-by: Kirill A. Khalitov <kirill.khalitov@46labs.com>
---

diff --git a/src/vnet/feature/feature.api b/src/vnet/feature/feature.api
index 7b52a6630cb..e3054b53b9d 100644
--- a/src/vnet/feature/feature.api
+++ b/src/vnet/feature/feature.api
@@ -38,6 +38,25 @@ autoreply define feature_enable_disable {
     string feature_name[64];
 };
 
+autoendian define feature_is_enabled
+{
+  u32 client_index;
+  u32 context;
+
+  string arc_name[64];
+  string feature_name[64];
+  vl_api_interface_index_t sw_if_index;
+};
+
+autoendian define feature_is_enabled_reply
+{
+  u32 client_index;
+  u32 context;
+  i32 retval;
+
+  bool is_enabled;
+};
+
 /*
  * Local Variables:
  * eval: (c-set-style "gnu")
diff --git a/src/vnet/feature/feature_api.c b/src/vnet/feature/feature_api.c
index a8c74277788..152e44bd288 100644
--- a/src/vnet/feature/feature_api.c
+++ b/src/vnet/feature/feature_api.c
@@ -74,6 +74,30 @@ vl_api_feature_enable_disable_t_handler (vl_api_feature_enable_disable_t * mp)
   REPLY_MACRO (VL_API_FEATURE_ENABLE_DISABLE_REPLY);
 }
 
+static void
+vl_api_feature_is_enabled_t_handler (vl_api_feature_is_enabled_t *mp)
+{
+  vl_api_feature_is_enabled_reply_t *rmp = NULL;
+  i32 rv = 0;
+  bool is_enabled = false;
+
+  VALIDATE_SW_IF_INDEX_END (mp);
+
+  u8 *arc_name = format (0, "%s%c", mp->arc_name, 0);
+  u8 *feature_name = format (0, "%s%c", mp->feature_name, 0);
+
+  is_enabled = vnet_feature_is_enabled (
+    (const char *) arc_name, (const char *) feature_name, mp->sw_if_index);
+
+  vec_free (feature_name);
+  vec_free (arc_name);
+
+  BAD_SW_IF_INDEX_LABEL;
+
+  REPLY_MACRO2_END (VL_API_FEATURE_IS_ENABLED_REPLY,
+		    ({ rmp->is_enabled = is_enabled; }));
+}
+
 #include <vnet/feature/feature.api.c>
 
 static clib_error_t *