Commit Graph

3 Commits

Author SHA1 Message Date
Andrey V. Elsukov
eccfe69a5c Add new socket ioctls SIOC[SG]TUNFIB to set FIB number of encapsulated
packets on tunnel interfaces. Add support of these ioctls to gre(4),
gif(4) and me(4) interfaces. For incoming packets M_SETFIB() should use
if_fib value from ifnet structure, use proper value in gre(4) and me(4).

Differential Revision:	https://reviews.freebsd.org/D2462
No objection from:	#network
MFC after:	2 weeks
Sponsored by:	Yandex LLC
2015-05-12 07:37:27 +00:00
Andrey V. Elsukov
b347bc3b7a Pass mtag argument into m_tag_locate() to continue the search from
the last found mtag.
2015-05-06 14:02:57 +00:00
Andrey V. Elsukov
f325335caf Overhaul if_gre(4).
Split it into two modules: if_gre(4) for GRE encapsulation and
if_me(4) for minimal encapsulation within IP.

gre(4) changes:
* convert to if_transmit;
* rework locking: protect access to softc with rmlock,
  protect from concurrent ioctls with sx lock;
* correct interface accounting for outgoing datagramms (count only payload size);
* implement generic support for using IPv6 as delivery header;
* make implementation conform to the RFC 2784 and partially to RFC 2890;
* add support for GRE checksums - calculate for outgoing datagramms and check
  for inconming datagramms;
* add support for sending sequence number in GRE header;
* remove support of cached routes. This fixes problem, when gre(4) doesn't
  work at system startup. But this also removes support for having tunnels with
  the same addresses for inner and outer header.
* deprecate support for various GREXXX ioctls, that doesn't used in FreeBSD.
  Use our standard ioctls for tunnels.

me(4):
* implementation conform to RFC 2004;
* use if_transmit;
* use the same locking model as gre(4);

PR:		164475
Differential Revision:	D1023
No objections from:	net@
Relnotes:	yes
Sponsored by:	Yandex LLC
2014-11-07 19:13:19 +00:00