From 5ce9fbc388438f0d9bf7550b47347ed706a88374 Mon Sep 17 00:00:00 2001
From: f0o <f0o@librenms.org>
Date: Sat, 9 May 2015 12:33:11 +0000
Subject: [PATCH] Add port-rewrite options

---
 doc/Support/Configuration.md | 10 ++++++++++
 includes/rewrites.php        | 16 ++++++++++++++++
 2 files changed, 26 insertions(+)

diff --git a/doc/Support/Configuration.md b/doc/Support/Configuration.md
index f96ad50f7..3d0f2807e 100644
--- a/doc/Support/Configuration.md
+++ b/doc/Support/Configuration.md
@@ -322,6 +322,16 @@ by continuing the array.
 `bad_iftype` is matched against the ifType value.
 `bad_if_regexp` is matched against the ifDescr value as a regular expression.
 
+#### Interfaces to be rewritten
+
+```php
+$config['rewrite_if']['cpu'] = 'Management Interface';
+$config['rewrite_if_regexp']['/cpu /'] = 'Management ';
+```
+Entries defined in `rewrite_if` are being replaced completely.
+Entries defined in `rewrite_if_regexp` only replace the match.
+Matches are compared case-insensitive.
+
 #### Storage configuration
 
 ```php
diff --git a/includes/rewrites.php b/includes/rewrites.php
index e4b9afe50..6a0904504 100644
--- a/includes/rewrites.php
+++ b/includes/rewrites.php
@@ -82,6 +82,22 @@ function ifLabel($interface, $device = NULL)
     list($interface['label']) = explode("thomson", $interface['label']);
   }
 
+  if( is_array($config['rewrite_if']) ) {
+    foreach( $config['rewrite_if'] as $src => $val ) {
+      if( stristr($interface['label'], $src) ) {
+        $interface['label'] = $val;
+      }
+    }
+  }
+
+  if( is_array($config['rewrite_if_regexp']) ) {
+    foreach( $config['rewrite_if_regexp'] as $reg => $val ) {
+      if( preg_match($reg."i", $interface['label']) ) {
+        $interface['label'] = preg_replace($reg."i",$val,$interface['label']);
+      }
+    }
+  }
+
   return $interface;
 }