Whitelist, takes precedence over blocklist

[cfpp2p]

Place a file(s) with name ending as whitelist in your blocklist directory.

examples: b2-whitelist.txt A1-whitelist.p2p whitelist.dat

The file's data format must be same as what is currently allowed as per blocklist files. https://trac.transmissionbt.com/wiki/Blocklists

Whitelist will unblock specific peers.

The address or ranges in a whitelist will never be blocked even if in a blocklist. The whitelist always takes precedence over blocklist. It's easy to always allow single or multiple addresses or ranges now. The whitelist files are dealt with in all respects exactly as their counterpart blocklist files except the addresses of whitelist are always allowed no matter what.

session.c

@@ -2432 +2432 @@
   assert (tr_isSession (session));
 
   for (l = session->blocklists; l; l = l->next)
-    if (tr_blocklistFileHasAddress (l->data, addr))
-      return true;
+    {
+      if (tr_stringEndsWith (tr_blocklistFileGetFilename (l->data), "whitelist.bin"))
+   if (tr_blocklistFileHasAddress (l->data, addr))
+     return false;
+    }
+  for (l = session->blocklists; l; l = l->next)
+    {
+      if (!tr_stringEndsWith (tr_blocklistFileGetFilename (l->data), "whitelist.bin"))
+   if (tr_blocklistFileHasAddress (l->data, addr))
+     return true;
+    }
 
   return false;
 }

[x190]

Patch: https://trac.transmissionbt.com/ticket/5923#comment:4

Info needs to be added to wiki.

https://trac.transmissionbt.com/wiki/Blocklists