X-Git-Url: http://git.ozlabs.org/?p=ppp.git;a=blobdiff_plain;f=pppd%2Fdemand.c;h=72e379c2e5d42c7ccd1625209e90a5e7e76cf67e;hp=cfae882f64afd0f279bf14505ade821ea3a7aba4;hb=56371803b11c557e07ae968bef34b178b518139d;hpb=ab7cff041f1b8054ae5691df236fe18c1d23bfe6

diff --git a/pppd/demand.c b/pppd/demand.c
index cfae882..72e379c 100644
--- a/pppd/demand.c
+++ b/pppd/demand.c
@@ -1,25 +1,34 @@
 /*
  * demand.c - Support routines for demand-dialling.
  *
- * Copyright (c) 1993 The Australian National University.
- * All rights reserved.
+ * Copyright (c) 1996-2002 Paul Mackerras. All rights reserved.
  *
- * Redistribution and use in source and binary forms are permitted
- * provided that the above copyright notice and this paragraph are
- * duplicated in all such forms and that any documentation,
- * advertising materials, and other materials related to such
- * distribution and use acknowledge that the software was developed
- * by the Australian National University.  The name of the University
- * may not be used to endorse or promote products derived from this
- * software without specific prior written permission.
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
- * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+ * 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. The name(s) of the authors of this software must not be used to
+ *    endorse or promote products derived from this software without
+ *    prior written permission.
+ *
+ * 3. Redistributions of any form whatsoever must retain the following
+ *    acknowledgment:
+ *    "This product includes software developed by Paul Mackerras
+ *     <paulus@samba.org>".
+ *
+ * THE AUTHORS OF THIS SOFTWARE DISCLAIM ALL WARRANTIES WITH REGARD TO
+ * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS, IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY
+ * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
+ * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
+ * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  */
 
-#ifndef lint
-static char rcsid[] = "$Id: demand.c,v 1.10 1999/03/19 04:23:38 paulus Exp $";
-#endif
+#define RCSID	"$Id: demand.c,v 1.20 2005/08/25 12:14:18 paulus Exp $"
 
 #include <stdio.h>
 #include <stdlib.h>
@@ -35,9 +44,7 @@ static char rcsid[] = "$Id: demand.c,v 1.10 1999/03/19 04:23:38 paulus Exp $";
 #include <sys/stat.h>
 #include <sys/socket.h>
 #ifdef PPP_FILTER
-#include <net/if.h>
-#include <net/bpf.h>
-#include <pcap.h>
+#include <pcap-bpf.h>
 #endif
 
 #include "pppd.h"
@@ -45,6 +52,7 @@ static char rcsid[] = "$Id: demand.c,v 1.10 1999/03/19 04:23:38 paulus Exp $";
 #include "ipcp.h"
 #include "lcp.h"
 
+
 char *frame;
 int framelen;
 int framemax;
@@ -85,8 +93,10 @@ demand_conf()
     flush_flag = 0;
     fcs = PPP_INITFCS;
 
-    ppp_send_config(0, PPP_MRU, (u_int32_t) 0, 0, 0);
-    ppp_recv_config(0, PPP_MRU, (u_int32_t) 0, 0, 0);
+    netif_set_mtu(0, MIN(lcp_allowoptions[0].mru, PPP_MRU));
+    if (ppp_send_config(0, PPP_MRU, (u_int32_t) 0, 0, 0) < 0
+	|| ppp_recv_config(0, PPP_MRU, (u_int32_t) 0, 0, 0) < 0)
+	    fatal("Couldn't set up demand-dialled PPP interface: %m");
 
 #ifdef PPP_FILTER
     set_filters(&pass_filter, &active_filter);
@@ -216,7 +226,7 @@ loop_chars(p, n)
 	    if (!escape_flag && !flush_flag
 		&& framelen > 2 && fcs == PPP_GOODFCS) {
 		framelen -= 2;
-		if (loop_frame(frame, framelen))
+		if (loop_frame((unsigned char *)frame, framelen))
 		    rv = 1;
 	    }
 	    framelen = 0;
@@ -330,9 +340,15 @@ active_packet(p, len)
 	return 0;
     proto = PPP_PROTOCOL(p);
 #ifdef PPP_FILTER
-    if (active_filter.bf_len != 0
-	&& bpf_filter(active_filter.bf_insns, frame, len, len) == 0)
+    p[0] = 1;		/* outbound packet indicator */
+    if ((pass_filter.bf_len != 0
+	 && bpf_filter(pass_filter.bf_insns, p, len, len) == 0)
+	|| (active_filter.bf_len != 0
+	    && bpf_filter(active_filter.bf_insns, p, len, len) == 0)) {
+	p[0] = 0xff;
 	return 0;
+    }
+    p[0] = 0xff;
 #endif
     for (i = 0; (protp = protocols[i]) != NULL; ++i) {
 	if (protp->protocol < 0xC000 && (protp->protocol & ~0x8000) == proto) {