Commit Graph

6 Commits

Author SHA1 Message Date
Hiroki Sato
b1c250ff3f - Remove GIF_{SEND,ACCEPT}_REVETHIP.
- Simplify EADDRNOTAVAIL and EAFNOSUPPORT conditions.

MFC after:	3 days
2015-09-10 05:59:39 +00:00
Andrey V. Elsukov
c1b4f79dfa Add an ability accept encapsulated packets from different sources by one
gif(4) interface. Add new option "ignore_source" for gif(4) interface.
When it is enabled, gif's encapcheck function requires match only for
packet's destination address.

Differential Revision:	https://reviews.freebsd.org/D2004
Obtained from:	Yandex LLC
MFC after:	2 weeks
Sponsored by:	Yandex LLC
2015-05-15 12:19:45 +00:00
Hiroki Sato
53ac3451a7 Use printb() instead of rolling its own routine to display
bits in options=<>.

Pointed out by:	ume
MFC after:	3 days
2009-09-07 15:52:15 +00:00
Hajimu UMEMOTO
ad334ef082 Suppress an options line when no bit is on.
Reviewed by:	hrs
MFC after:	3 days
2009-09-07 15:22:54 +00:00
Xin LI
b59dcaeeb3 - Use size_t instead of int when appropriate;
- Use C99 sparse initialization.

With these changes ifconfig(8) is WARNS=2 clean.
2009-06-23 23:49:52 +00:00
Hiroki Sato
dbe5926046 Fix and add a workaround on an issue of EtherIP packet with reversed
version field sent via gif(4)+if_bridge(4).  The EtherIP
implementation found on FreeBSD 6.1, 6.2, 6.3, 7.0, 7.1, and 7.2 had
an interoperability issue because it sent the incorrect EtherIP
packets and discarded the correct ones.

This change introduces the following two flags to gif(4):

 accept_rev_ethip_ver: accepts both correct EtherIP packets and ones
    with reversed version field, if enabled.  If disabled, the gif
    accepts the correct packets only.  This flag is enabled by
    default.

 send_rev_ethip_ver: sends EtherIP packets with reversed version field
    intentionally, if enabled.  If disabled, the gif sends the correct
    packets only.  This flag is disabled by default.

These flags are stored in struct gif_softc and can be set by
ifconfig(8) on per-interface basis.

Note that this is an incompatible change of EtherIP with the older
FreeBSD releases.  If you need to interoperate older FreeBSD boxes and
new versions after this commit, setting "send_rev_ethip_ver" is
needed.

Reviewed by:	thompsa and rwatson
Spotted by:	Shunsuke SHINOMIYA
PR:		kern/125003
MFC after:	2 weeks
2009-06-07 23:00:40 +00:00