From c35fafdf887aa32c5be6ad738d3a3b0140cea6e8 Mon Sep 17 00:00:00 2001
From: Matthieu Boutier <boutier@pps.jussieu.fr>
Date: Mon, 23 Jan 2012 23:46:32 +0100
Subject: babeld: babelz merge.

Babelz is the last version of the stand-alone babel daemon. In
particular, it use multiple channels to diminuate
interferences. Please refer to this one for more details.
---
 babeld/net.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

(limited to 'babeld/net.c')

diff --git a/babeld/net.c b/babeld/net.c
index eaed51d2..5e0200b0 100644
--- a/babeld/net.c
+++ b/babeld/net.c
@@ -58,6 +58,7 @@ babel_socket(int port)
     int s, rc;
     int saved_errno;
     int one = 1, zero = 0;
+    const int ds = 0xc0;        /* CS6 - Network Control */
 
     s = socket(PF_INET6, SOCK_DGRAM, 0);
     if(s < 0)
@@ -86,6 +87,15 @@ babel_socket(int port)
     if(rc < 0)
         goto fail;
 
+#ifdef IPV6_TCLASS
+    rc = setsockopt(s, IPPROTO_IPV6, IPV6_TCLASS, &ds, sizeof(ds));
+#else
+    rc = -1;
+    errno = ENOSYS;
+#endif
+    if(rc < 0)
+        perror("Couldn't set traffic class");
+
     rc = fcntl(s, F_GETFL, 0);
     if(rc < 0)
         goto fail;
-- 
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