commit 8253b73c3c71d4102c0010f63b59b2829f3b0f90
author Christian Franke <chris@opensourcerouting.org> Thu Nov 12 14:24:28 2015 +0100
committer Donald Sharp <sharpd@cumulusnetworks.com> Tue Dec 08 14:12:50 2015 -0500
tree 8f70ae84df2f54269b632a572dd7a40c11fc0a1c
parent 812f282cc1b2c69c1d75cfbfe7983725ceaa4b15

isisd: make send_lsp more robust

Signed-off-by: Christian Franke <chris@opensourcerouting.org>
Tested-by: NetDEF CI System <cisystem@netdef.org>

isisd/isis_bpf.c

diff --git a/isisd/isis_bpf.c b/isisd/isis_bpf.c
index f6176ef..fd65608 100644
--- a/isisd/isis_bpf.c
+++ b/isisd/isis_bpf.c
@@ -29,6 +29,7 @@
 #include <net/bpf.h>
 
 #include "log.h"
+#include "network.h"
 #include "stream.h"
 #include "if.h"
 
@@ -339,8 +340,14 @@
 
   /* now we can send this */
   written = write (circuit->fd, sock_buff, buflen);
-
-  return ISIS_OK;
+  if (written < 0)
+    {
+      zlog_warn("IS-IS bpf: could not transmit packet on %s: %s",
+                circuit->interface->name, safe_strerror(errno));
+      if (ERRNO_IO_RETRY(errno))
+        return ISIS_WARNING;
+      return ISIS_ERROR;
+    }
 }
 
 int