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freebsd-nq/sys/netinet6
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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
..
dest6.c Rather than using hidden includes (with cicular dependencies), 2008-12-02 21:37:28 +00:00
frag6.c Move "options MAC" from opt_mac.h to opt_global.h, as it's now in GENERIC 2009-06-05 14:55:22 +00:00
icmp6.c Place hostnames and similar information fully under the prison system. 2009-05-29 21:27:12 +00:00
icmp6.h
in6_cksum.c Clean up VCS Ids. 2007-12-10 16:03:40 +00:00
in6_gif.c Fix and add a workaround on an issue of EtherIP packet with reversed 2009-06-07 23:00:40 +00:00
in6_gif.h Clean up VCS Ids. 2007-12-10 16:03:40 +00:00
in6_ifattach.c Convert the two dimensional array to be malloced and introduce 2009-06-01 15:49:42 +00:00
in6_ifattach.h Clean up VCS Ids. 2007-12-10 16:03:40 +00:00
in6_mcast.c Merge final round of MLD changes from p4: 2009-05-27 18:57:13 +00:00
in6_pcb.c Move "options MAC" from opt_mac.h to opt_global.h, as it's now in GENERIC 2009-06-05 14:55:22 +00:00
in6_pcb.h Merge in6_pcbfree() into in_pcbfree() which after the previous 2008-11-27 12:04:35 +00:00
in6_proto.c Permit buiding kernels with options VIMAGE, restricted to only a single 2009-04-30 13:36:26 +00:00
in6_rmx.c Convert the two dimensional array to be malloced and introduce 2009-06-01 15:49:42 +00:00
in6_src.c First pass at separating per-vnet initializer functions 2009-04-06 22:29:41 +00:00
in6_var.h Bite the bullet, and make the IPv6 SSM and MLDv2 mega-commit: 2009-04-29 19:19:13 +00:00
in6.c Add hierarchical jails. A jail may further virtualize its environment 2009-05-27 14:11:23 +00:00
in6.h - Rename IP_NONLOCALOK IP socket option to IP_BINDANY, to be more consistent 2009-06-01 10:30:00 +00:00
ip6_ecn.h Clean up VCS Ids. 2007-12-10 16:03:40 +00:00
ip6_forward.c Try to remove/assimilate as much of formerly IPv4/6 specific 2009-02-08 09:27:07 +00:00
ip6_id.c Clean up VCS Ids. 2007-12-10 16:03:40 +00:00
ip6_input.c V_loif is not an array but a pure pointer, so treat it as such. 2009-06-01 21:29:54 +00:00
ip6_ipsec.c Add sysctls to toggle the behaviour of the (former) IPSEC_FILTERTUNNEL 2009-05-23 16:42:38 +00:00
ip6_ipsec.h #if 0 out a currently unsued (and incomplete) function: ip6_ipsec_mtu(). 2008-03-14 11:44:30 +00:00
ip6_mroute.c Add two missing INIT_VNET_INET6(curvnet) to make VIMAGE kernels happier. 2009-05-18 17:48:46 +00:00
ip6_mroute.h Introduce a number of changes to the MROUTING code. 2009-03-19 01:43:03 +00:00
ip6_output.c - Rename IP_NONLOCALOK IP socket option to IP_BINDANY, to be more consistent 2009-06-01 10:30:00 +00:00
ip6_var.h Bite the bullet, and make the IPv6 SSM and MLDv2 mega-commit: 2009-04-29 19:19:13 +00:00
ip6.h
ip6protosw.h struct ip6protosw is a copy of struct protosw, so remove pr_usrreq there 2009-01-04 21:13:51 +00:00
mld6_var.h Bite the bullet, and make the IPv6 SSM and MLDv2 mega-commit: 2009-04-29 19:19:13 +00:00
mld6.c Merge final round of MLD changes from p4: 2009-05-27 18:57:13 +00:00
mld6.h Add MLDv2 protocol header, but do not connect it to the build. 2009-04-29 11:31:23 +00:00
nd6_nbr.c Change the curvnet variable from a global const struct vnet *, 2009-05-05 10:56:12 +00:00
nd6_rtr.c Convert the two dimensional array to be malloced and introduce 2009-06-01 15:49:42 +00:00
nd6.c Move "options MAC" from opt_mac.h to opt_global.h, as it's now in GENERIC 2009-06-05 14:55:22 +00:00
nd6.h Change if_output to take a struct route as its fourth argument in order 2009-04-16 20:30:28 +00:00
pim6_var.h Clean up VCS Ids. 2007-12-10 16:03:40 +00:00
pim6.h Clean up VCS Ids. 2007-12-10 16:03:40 +00:00
raw_ip6.c Permit buiding kernels with options VIMAGE, restricted to only a single 2009-04-30 13:36:26 +00:00
raw_ip6.h Second round of putting global variables, which were virtualized 2008-12-13 19:13:03 +00:00
route6.c Implement RFC 5095 more fully. Rather than marking this no-op code as 2009-05-09 18:25:58 +00:00
scope6_var.h Clean up VCS Ids. 2007-12-10 16:03:40 +00:00
scope6.c First pass at separating per-vnet initializer functions 2009-04-06 22:29:41 +00:00
sctp6_usrreq.c - Cleanup checksum code. 2009-02-03 11:04:03 +00:00
sctp6_var.h 1) Adds the rest of the VIMAGE change macros 2008-07-09 16:45:30 +00:00
tcp6_var.h Put a global variables, which were virtualized but formerly 2008-12-11 16:26:38 +00:00
udp6_usrreq.c Move "options MAC" from opt_mac.h to opt_global.h, as it's now in GENERIC 2009-06-05 14:55:22 +00:00
udp6_var.h Clean up VCS Ids. 2007-12-10 16:03:40 +00:00
vinet6.h Reimplement the netisr framework in order to support parallel netisr 2009-06-01 10:41:38 +00:00