From 7f4eb885ffcec5f97842aea43b64c28654e76659 Mon Sep 17 00:00:00 2001
From: Steffen Vogel <stvogel@eonerc.rwth-aachen.de>
Date: Thu, 5 Jun 2014 09:35:39 +0000
Subject: [PATCH] some preparations for netem and irq affinity stuff

git-svn-id: https://zerberus.eonerc.rwth-aachen.de:8443/svn/s2ss/trunk@60 8ec27952-4edc-4aab-86aa-e87bb2611832
---
 include/node.h |  6 ++++++
 src/node.c     | 17 +++++++++++++++--
 2 files changed, 21 insertions(+), 2 deletions(-)

diff --git a/include/node.h b/include/node.h
index f9520d611..d03fd8bda 100644
--- a/include/node.h
+++ b/include/node.h
@@ -48,6 +48,12 @@ struct node
 	/// Remote address of the socket
 	struct sockaddr_in remote;
 
+	/// Name of the local interface
+	const char *ifname;
+	/// Index of the local interface
+	int ifindex;
+	/// Socket Mark
+	int mark;
 
 	/// A short identifier of the node
 	const char *name;
diff --git a/src/node.c b/src/node.c
index 90528eb8e..360f5a3f8 100644
--- a/src/node.c
+++ b/src/node.c
@@ -19,6 +19,7 @@
 #include "utils.h"
 #include "msg.h"
 #include "node.h"
+#include "if.h"
 
 int node_create(struct node *n, const char *name, enum node_type type,
 	struct sockaddr_in local, struct sockaddr_in remote)
@@ -29,6 +30,10 @@ int node_create(struct node *n, const char *name, enum node_type type,
 	n->local = local;
 	n->remote = remote;
 
+	/* We use to local address to determine the outgoing interface */
+	//n->ifname = if_addrtoname((struct sockaddr*) &local);
+	//n->ifindex = if_nametoindex(n->ifname);
+
 	return 0;
 }
 
@@ -41,8 +46,16 @@ int node_connect(struct node *n)
 
 	/* Set socket options */
 	int prio = SOCKET_PRIO;
-	if (setsockopt(n->sd, SOL_SOCKET, SOCKET_PRIO, &prio, sizeof(prio)))
-		perror("Failed to set socket options");
+	if (setsockopt(n->sd, SOL_SOCKET, SO_PRIORITY, &prio, sizeof(prio)))
+		perror("Failed to set socket priority");
+	else
+		debug(4, "Set socket priority of node '%s' to %u", n->name, prio);
+
+	/* Set mark for outgoing packets */
+	if (setsockopt(n->sd, SOL_SOCKET, SO_MARK, &n->mark, sizeof(n->mark)))
+		perror("Failed to set mark for outgoing packets");
+	else
+		debug(4, "Set mark of outgoing packets of node '%s' to %u", n->name, n->mark);
 
 	/* Bind socket for receiving */
 	if (bind(n->sd, (struct sockaddr *) &n->local, sizeof(struct sockaddr_in)))