Allow a ``timeout secs'' filter option to let specific packet types

effect the idle timer in different ways.

Submitted by: Stefan Esser <se@freebsd.org>

With adjustments by me to document the option in the man page and to
give the same semantics for outgoing traffic as incoming.

I made the style more consistent in ip.c - this should really have
been done as a separate commit.

1 files changed, 4 insertions, 1 deletions

diff --git a/usr.sbin/ppp/tun.h b/usr.sbin/ppp/tun.h
index f8a8289..06d1ae8 100644
--- a/usr.sbin/ppp/tun.h
+++ b/usr.sbin/ppp/tun.h
@@ -27,7 +27,10 @@
  */
 
 struct tun_data {
-  u_int32_t family;
+  union {
+    u_int32_t family;
+    u_int32_t timeout;
+  } header;
   u_char data[MAX_MRU];
 };