1 files changed, 84 insertions, 0 deletions
diff --git a/src/sync.c b/src/sync.c
new file mode 100644
index 0000000..2e354f0
--- /dev/null
+++ b/src/sync.c
@@ -0,0 +1,84 @@
+/*-
+ * Copyright (c) 1999 Brian Somers <brian@Awfulhak.org>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $FreeBSD: src/usr.sbin/ppp/sync.c,v 1.8.26.1 2010/12/21 17:10:29 kensmith Exp $
+ */
+
+#include <sys/types.h>
+
+#include <stdio.h>
+#include <termios.h>
+
+#include "layer.h"
+#include "defs.h"
+#include "mbuf.h"
+#include "log.h"
+#include "sync.h"
+#include "timer.h"
+#include "lqr.h"
+#include "hdlc.h"
+#include "throughput.h"
+#include "fsm.h"
+#include "lcp.h"
+#include "ccp.h"
+#include "link.h"
+#include "async.h"
+#include "descriptor.h"
+#include "physical.h"
+
+static struct mbuf *
+sync_LayerPush(struct bundle *bundle __unused, struct link *l __unused,
+	       struct mbuf *bp, int pri __unused, u_short *proto __unused)
+{
+  log_DumpBp(LogSYNC, "Write", bp);
+  m_settype(bp, MB_SYNCOUT);
+  bp->priv = 0;
+  return bp;
+}
+
+static struct mbuf *
+sync_LayerPull(struct bundle *b __unused, struct link *l, struct mbuf *bp,
+               u_short *proto __unused)
+{
+  struct physical *p = link2physical(l);
+  int len;
+
+  if (!p)
+    log_Printf(LogERROR, "Can't Pull a sync packet from a logical link\n");
+  else {
+    log_DumpBp(LogSYNC, "Read", bp);
+
+    /* Either done here or by the HDLC layer */
+    len = m_length(bp);
+    p->hdlc.lqm.ifInOctets += len + 1;		/* plus 1 flag octet! */
+    p->hdlc.lqm.lqr.InGoodOctets += len + 1;	/* plus 1 flag octet! */
+    p->hdlc.lqm.ifInUniPackets++;
+    m_settype(bp, MB_SYNCIN);
+  }
+
+  return bp;
+}
+
+struct layer synclayer = { LAYER_SYNC, "sync", sync_LayerPush, sync_LayerPull };