Add equal-cost multipath routing policy

This adds an equal-cost multipath routing policy to Ouroboros, based
on Nick Aerts' code. When selected, flows will send packets over all
paths with equal cost (hop count). Path selection is round-robin. It
does not yet take into account flows that are down.

Signed-off-by: Dimitri Staessens <dimitri@ouroboros.rocks>
Signed-off-by: Sander Vrijders <sander@ouroboros.rocks>

1 files changed, 6 insertions, 4 deletions

diff --git a/src/ipcpd/unicast/pol/simple_pff.c b/src/ipcpd/unicast/pol/simple_pff.c
index c5780703..5bd73d8a 100644
--- a/src/ipcpd/unicast/pol/simple_pff.c
+++ b/src/ipcpd/unicast/pol/simple_pff.c
@@ -26,14 +26,14 @@
 
 #include <ouroboros/errno.h>
 
-#include <assert.h>
-#include <pthread.h>
-
 #include "pft.h"
 #include "simple_pff.h"
 
+#include <assert.h>
+#include <pthread.h>
+
 struct pff_i {
-        struct pft *  pft;
+        struct pft *     pft;
         pthread_rwlock_t lock;
 };
 
@@ -101,6 +101,7 @@ int simple_pff_add(struct pff_i * pff_i,
         int * fds;
 
         assert(pff_i);
+        assert(fd);
         assert(len > 0);
 
         (void) len;
@@ -127,6 +128,7 @@ int simple_pff_update(struct pff_i * pff_i,
         int * fds;
 
         assert(pff_i);
+        assert(fd);
         assert(len > 0);
 
         (void) len;