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* Re-add deprecated options as no-op to prevent breakage of backwardhrs2015-09-211-0/+6
| | | | | | compatibility. Spotted by: ume
* MFC 287607:hrs2015-09-131-10/+3
| | | | | - Remove GIF_{SEND,ACCEPT}_REVETHIP. - Simplify EADDRNOTAVAIL and EAFNOSUPPORT conditions.
* MFC r282965:ae2015-05-311-1/+3
| | | | | | | | | | 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 Sponsored by: Yandex LLC
* Use printb() instead of rolling its own routine to displayhrs2009-09-071-20/+4
| | | | | | | bits in options=<>. Pointed out by: ume MFC after: 3 days
* Suppress an options line when no bit is on.ume2009-09-071-0/+2
| | | | | Reviewed by: hrs MFC after: 3 days
* - Use size_t instead of int when appropriate;delphij2009-06-231-2/+2
| | | | | | - Use C99 sparse initialization. With these changes ifconfig(8) is WARNS=2 clean.
* Fix and add a workaround on an issue of EtherIP packet with reversedhrs2009-06-071-0/+132
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
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