MFMP: Make ppp multilink capable.

      See the file README.changes, and re-read the man page.

1 files changed, 198 insertions, 0 deletions

diff --git a/usr.sbin/ppp/link.c b/usr.sbin/ppp/link.c
new file mode 100644
index 0000000..ead0e14
--- /dev/null
+++ b/usr.sbin/ppp/link.c
@@ -0,0 +1,198 @@
+/*-
+ * Copyright (c) 1998 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.
+ *
+ *  $Id: link.c,v 1.1.2.20 1998/05/01 19:24:59 brian Exp $
+ *
+ */
+
+#include <sys/types.h>
+
+#include <stdio.h>
+#include <termios.h>
+
+#include "mbuf.h"
+#include "log.h"
+#include "timer.h"
+#include "lqr.h"
+#include "hdlc.h"
+#include "throughput.h"
+#include "lcpproto.h"
+#include "fsm.h"
+#include "descriptor.h"
+#include "lcp.h"
+#include "ccp.h"
+#include "link.h"
+#include "prompt.h"
+
+void
+link_AddInOctets(struct link *l, int n)
+{
+  throughput_addin(&l->throughput, n);
+}
+
+void
+link_AddOutOctets(struct link *l, int n)
+{
+  throughput_addout(&l->throughput, n);
+}
+
+void
+link_SequenceQueue(struct link *l)
+{
+  log_Printf(LogDEBUG, "link_SequenceQueue\n");
+  while (l->Queue[PRI_NORMAL].qlen)
+    mbuf_Enqueue(l->Queue + PRI_LINK, mbuf_Dequeue(l->Queue + PRI_NORMAL));
+}
+
+int
+link_QueueLen(struct link *l)
+{
+  int i, len;
+
+  for (i = 0, len = 0; i < LINK_QUEUES; i++)
+    len += l->Queue[i].qlen;
+
+  return len;
+}
+
+int
+link_QueueBytes(struct link *l)
+{
+  int i, len, bytes;
+  struct mbuf *m;
+
+  bytes = 0;
+  for (i = 0, len = 0; i < LINK_QUEUES; i++) {
+    len = l->Queue[i].qlen;
+    m = l->Queue[i].top;
+    while (len--) {
+      bytes += mbuf_Length(m);
+      m = m->pnext;
+    }
+  }
+
+  return bytes;
+}
+
+struct mbuf *
+link_Dequeue(struct link *l)
+{
+  int pri;
+  struct mbuf *bp;
+
+  for (bp = (struct mbuf *)0, pri = LINK_QUEUES - 1; pri >= 0; pri--)
+    if (l->Queue[pri].qlen) {
+      bp = mbuf_Dequeue(l->Queue + pri);
+      log_Printf(LogDEBUG, "link_Dequeue: Dequeued from queue %d,"
+                " containing %d more packets\n", pri, l->Queue[pri].qlen);
+      break;
+    }
+
+  return bp;
+}
+
+/*
+ * Write to the link. Actualy, requested packets are queued, and go out
+ * at some later time depending on the physical link implementation.
+ */
+void
+link_Write(struct link *l, int pri, const char *ptr, int count)
+{
+  struct mbuf *bp;
+
+  if(pri < 0 || pri >= LINK_QUEUES)
+    pri = 0;
+
+  bp = mbuf_Alloc(count, MB_LINK);
+  memcpy(MBUF_CTOP(bp), ptr, count);
+
+  mbuf_Enqueue(l->Queue + pri, bp);
+}
+
+void
+link_Output(struct link *l, int pri, struct mbuf *bp)
+{
+  struct mbuf *wp;
+  int len;
+
+  if(pri < 0 || pri >= LINK_QUEUES)
+    pri = 0;
+
+  len = mbuf_Length(bp);
+  wp = mbuf_Alloc(len, MB_LINK);
+  mbuf_Read(bp, MBUF_CTOP(wp), len);
+  mbuf_Enqueue(l->Queue + pri, wp);
+}
+
+static struct protostatheader {
+  u_short number;
+  const char *name;
+} ProtocolStat[NPROTOSTAT] = {
+  { PROTO_IP, "IP" },
+  { PROTO_VJUNCOMP, "VJ_UNCOMP" },
+  { PROTO_VJCOMP, "VJ_COMP" },
+  { PROTO_COMPD, "COMPD" },
+  { PROTO_ICOMPD, "ICOMPD" },
+  { PROTO_LCP, "LCP" },
+  { PROTO_IPCP, "IPCP" },
+  { PROTO_CCP, "CCP" },
+  { PROTO_PAP, "PAP" },
+  { PROTO_LQR, "LQR" },
+  { PROTO_CHAP, "CHAP" },
+  { PROTO_MP, "MULTILINK" },
+  { 0, "Others" }
+};
+
+void
+link_ProtocolRecord(struct link *l, u_short proto, int type)
+{
+  int i;
+
+  for (i = 0; i < NPROTOSTAT; i++)
+    if (ProtocolStat[i].number == proto)
+      break;
+
+  if (type == PROTO_IN)
+    l->proto_in[i]++;
+  else
+    l->proto_out[i]++;
+}
+
+void
+link_ReportProtocolStatus(struct link *l, struct prompt *prompt)
+{
+  int i;
+
+  prompt_Printf(prompt, "    Protocol     in        out      "
+                "Protocol      in       out\n");
+  for (i = 0; i < NPROTOSTAT; i++) {
+    prompt_Printf(prompt, "   %-9s: %8lu, %8lu",
+	    ProtocolStat[i].name, l->proto_in[i], l->proto_out[i]);
+    if ((i % 2) == 0)
+      prompt_Printf(prompt, "\n");
+  }
+  if (!(i % 2))
+    prompt_Printf(prompt, "\n");
+}