From: Lennart Poettering <lennart@poettering.net>
Date: Wed, 6 Dec 2017 11:45:39 +0000 (+0100)
Subject: resolved: ignore our own LLMNR packets, the same way we ignore mDNS packets already
X-Git-Tag: v236~51^2
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=refs%2Fpull%2F7551%2Fhead;p=thirdparty%2Fsystemd.git

resolved: ignore our own LLMNR packets, the same way we ignore mDNS packets already

Let's minimize our traffic a bit. And for local names we bypass the
packet generation anyway.
---

diff --git a/src/resolve/resolved-llmnr.c b/src/resolve/resolved-llmnr.c
index 3e6e8b93b07..59499c9c0b8 100644
--- a/src/resolve/resolved-llmnr.c
+++ b/src/resolve/resolved-llmnr.c
@@ -100,6 +100,9 @@ static int on_llmnr_packet(sd_event_source *s, int fd, uint32_t revents, void *u
         if (r <= 0)
                 return r;
 
+        if (manager_our_packet(m, p))
+                return 0;
+
         scope = manager_find_scope(m, p);
         if (!scope) {
                 log_debug("Got LLMNR UDP packet on unknown scope. Ignoring.");