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dyoung 47be766fd3 Add a mode to gre(4) that sends GRE tunnel packets in UDP datagrams. 
Fix MOBILE encapsulation.  Add many debugging printfs (mainly
concerning UDP mode).  Clean up the gre(4) code a bit.  Add the
capability to setup UDP tunnels to ifconfig.  Update documentation.

In UDP mode, gre(4) puts a GRE header onto transmitted packets,
and hands them to a UDP socket for transmission.  That is, the
encapsulation looks like this: IP+UDP+GRE+encapsulated packet.

There are two ways to set up a UDP tunnel.  One way is to tell the
source and destination IP+port to gre(4), and let gre(4) create
the socket.  The other way to create a UDP tunnel is for userland
to "delegate" a UDP socket to the kernel.
 		2006-08-31 17:46:16 +00:00
..
agr make a multiple inclusion protection macro match with the filename. 2006-07-08 05:57:41 +00:00
Makefile Do not instal net/if_pppvar.h, net/if_slvar.h and net/if_stripvar.h. 2006-06-18 21:02:16 +00:00
bpf.c add missing initializer 2006-08-28 00:09:28 +00:00
bpf.h Multiple inclusion protection, as suggested by christos@ on tech-kern@ 2005-12-10 23:21:38 +00:00
bpf_filter.c XXX: GCC uninitialized. 2006-05-14 05:30:31 +00:00
bpfdesc.h Multiple inclusion protection, as suggested by christos@ on tech-kern@ 2005-12-10 23:21:38 +00:00
bridgestp.c Coverity CID 2728: Add KASSERT before NULL deref. 2006-04-15 02:38:19 +00:00
bsd-comp.c ANSI function decls and application of static. 2005-12-11 23:05:24 +00:00
dlt.h add missing DLTs from the libpcap-0.9.4 distribution 2006-02-27 14:22:26 +00:00
ethertypes.h Multiple inclusion protection, as suggested by christos@ on tech-kern@ 2005-12-10 23:21:38 +00:00
files.pf merge ktrace-lwp. 2005-12-11 12:16:03 +00:00
if.c One step closer to loadable domains. Store pointers to a domain's soft 2006-08-25 19:33:50 +00:00
if.h fully initialize IF_CLONE_INITIALIZER 2006-08-30 16:41:08 +00:00
if_arc.h argument type conflict. 2005-12-14 00:28:08 +00:00
if_arcsubr.c merge FreeBSD timecounters from branch simonb-timecounters 2006-06-07 22:33:33 +00:00
if_arp.h Multiple inclusion protection, as suggested by christos@ on tech-kern@ 2005-12-10 23:21:38 +00:00
if_atm.h ANSI function decls and application of static. 2005-12-11 23:05:24 +00:00
if_atmsubr.c ANSI function decls and application of static. 2005-12-11 23:05:24 +00:00
if_bridge.c Use the LWP cached credentials where sane. 2006-07-23 22:06:03 +00:00
if_bridgevar.h Multiple inclusion protection, as suggested by christos@ on tech-kern@ 2005-12-10 23:21:38 +00:00
if_dl.h ANSI function decls and application of static. 2005-12-11 23:05:24 +00:00
if_eco.h Multiple inclusion protection, as suggested by christos@ on tech-kern@ 2005-12-10 23:21:38 +00:00
if_ecosubr.c merge FreeBSD timecounters from branch simonb-timecounters 2006-06-07 22:33:33 +00:00
if_ether.h Add a new function called ether_snprintf() which takes an external buffer 2006-03-16 15:57:59 +00:00
if_ethersubr.c defflag PPPOE_SERVER and PPPOE_TERM_UNKNOWN_SESSIONS. 2006-08-05 17:20:54 +00:00
if_faith.c Replace the comment that came from if_loop.c many years ago by 2006-01-31 22:27:15 +00:00
if_faith.h ANSI function decls and application of static. 2005-12-11 23:05:24 +00:00
if_fddi.h ANSI function decls and application of static. 2005-12-11 23:05:24 +00:00
if_fddisubr.c merge FreeBSD timecounters from branch simonb-timecounters 2006-06-07 22:33:33 +00:00
if_gif.c Use the LWP cached credentials where sane. 2006-07-23 22:06:03 +00:00
if_gif.h ANSI function decls and application of static. 2005-12-11 23:05:24 +00:00
if_gre.c Add a mode to gre(4) that sends GRE tunnel packets in UDP datagrams. 2006-08-31 17:46:16 +00:00
if_gre.h Add a mode to gre(4) that sends GRE tunnel packets in UDP datagrams. 2006-08-31 17:46:16 +00:00
if_hippi.h ANSI function decls and application of static. 2005-12-11 23:05:24 +00:00
if_hippisubr.c merge FreeBSD timecounters from branch simonb-timecounters 2006-06-07 22:33:33 +00:00
if_ieee1394.h Multiple inclusion protection, as suggested by christos@ on tech-kern@ 2005-12-10 23:21:38 +00:00
if_ieee1394subr.c merge FreeBSD timecounters from branch simonb-timecounters 2006-06-07 22:33:33 +00:00
if_llc.h Comment out packed attributes that gcc 4 does not like. 2006-05-14 02:45:45 +00:00
if_loop.c ANSI function decls and application of static. 2005-12-11 23:05:24 +00:00
if_media.c merge ktrace-lwp. 2005-12-11 12:16:03 +00:00
if_media.h Add IFM_10G_SR and IFM_10G_CX4, to keep in sync with FreeBSD. 2006-06-03 12:43:28 +00:00
if_ppp.c Use the LWP cached credentials where sane. 2006-07-23 22:06:03 +00:00
if_ppp.h ANSI function decls and application of static. 2005-12-11 23:05:24 +00:00
if_pppoe.c Fix initializers. 2006-08-30 16:57:59 +00:00
if_pppoe.h Multiple inclusion protection, as suggested by christos@ on tech-kern@ 2005-12-10 23:21:38 +00:00
if_pppvar.h Use the LWP cached credentials where sane. 2006-07-23 22:06:03 +00:00
if_sl.c Use the LWP cached credentials where sane. 2006-07-23 22:06:03 +00:00
if_slvar.h merge FreeBSD timecounters from branch simonb-timecounters 2006-06-07 22:33:33 +00:00
if_sppp.h Multiple inclusion protection, as suggested by christos@ on tech-kern@ 2005-12-10 23:21:38 +00:00
if_spppsubr.c A problem has been identified in the in-kernel PPP code shared by ISDN PPP 2006-08-23 20:02:23 +00:00
if_spppvar.h Multiple inclusion protection, as suggested by christos@ on tech-kern@ 2005-12-10 23:21:38 +00:00
if_stf.c Use the LWP cached credentials where sane. 2006-07-23 22:06:03 +00:00
if_stf.h ANSI function decls and application of static. 2005-12-11 23:05:24 +00:00
if_strip.c Use the LWP cached credentials where sane. 2006-07-23 22:06:03 +00:00
if_stripvar.h merge FreeBSD timecounters from branch simonb-timecounters 2006-06-07 22:33:33 +00:00
if_tap.c fix initializers. 2006-08-30 16:58:38 +00:00
if_tap.h Multiple inclusion protection, as suggested by christos@ on tech-kern@ 2005-12-10 23:21:38 +00:00
if_token.h ANSI function decls and application of static. 2005-12-11 23:05:24 +00:00
if_tokensubr.c merge FreeBSD timecounters from branch simonb-timecounters 2006-06-07 22:33:33 +00:00
if_tun.c fix initializer 2006-08-30 17:00:15 +00:00
if_tun.h Change the number of TUN[GS]IFHEAD to avoid collision with if_pp. 2006-04-04 11:23:59 +00:00
if_types.h Integrate Common Address Redundancy Procotol (CARP) from OpenBSD 2006-05-18 09:05:49 +00:00
if_vlan.c Use the LWP cached credentials where sane. 2006-07-23 22:06:03 +00:00
if_vlanvar.h merge ktrace-lwp. 2005-12-11 12:16:03 +00:00
net_osdep.h Use the LWP cached credentials where sane. 2006-07-23 22:06:03 +00:00
netisr.h Multiple inclusion protection, as suggested by christos@ on tech-kern@ 2005-12-10 23:21:38 +00:00
netisr_dispatch.h Multiple inclusion protection, as suggested by christos@ on tech-kern@ 2005-12-10 23:21:38 +00:00
pfil.c merge ktrace-lwp. 2005-12-11 12:16:03 +00:00
pfil.h Change "inline" back to "__inline" in .h files -- C99 is still too 2006-02-16 20:17:12 +00:00
pfkeyv2.h Multiple inclusion protection, as suggested by christos@ on tech-kern@ 2005-12-10 23:21:38 +00:00
ppp-comp.h ANSI function decls and application of static. 2005-12-11 23:05:24 +00:00
ppp-deflate.c ANSI function decls and application of static. 2005-12-11 23:05:24 +00:00
ppp_defs.h Multiple inclusion protection, as suggested by christos@ on tech-kern@ 2005-12-10 23:21:38 +00:00
ppp_tty.c Use the LWP cached credentials where sane. 2006-07-23 22:06:03 +00:00
radix.c Fix typos, reported by Alexey Dobriyan ("Gathered from Linux"), 2006-02-25 00:58:34 +00:00
radix.h Multiple inclusion protection, as suggested by christos@ on tech-kern@ 2005-12-10 23:21:38 +00:00
raw_cb.c ANSI function decls and application of static. 2005-12-11 23:05:24 +00:00
raw_cb.h ANSI function decls and application of static. 2005-12-11 23:05:24 +00:00
raw_usrreq.c Use the LWP cached credentials where sane. 2006-07-23 22:06:03 +00:00
route.c merge FreeBSD timecounters from branch simonb-timecounters 2006-06-07 22:33:33 +00:00
route.h merge ktrace-lwp. 2005-12-11 12:16:03 +00:00
rtsock.c Use the LWP cached credentials where sane. 2006-07-23 22:06:03 +00:00
slcompress.c Perry reports that buf can be NULL, so deal with it. 2006-04-19 15:13:34 +00:00
slcompress.h ANSI function decls and application of static. 2005-12-11 23:05:24 +00:00
slip.h Multiple inclusion protection, as suggested by christos@ on tech-kern@ 2005-12-10 23:21:38 +00:00
zlib.c quell GCC 4.1 uninitialised variable warnings. 2006-05-10 21:53:14 +00:00
zlib.h zlib 1.2.3 changed the include protection variable names; adjust. 2006-01-14 20:17:12 +00:00