Mark Johnston ca1163bd5f Do not perform DAD on stf(4) interfaces. ... stf(4) interfaces are not multicast-capable so they can't perform DAD. They also did not set IFF_DRV_RUNNING when an address was assigned, so the logic in nd6_timer() would periodically flag such an address as tentative, resulting in interface flapping. Fix the problem by setting IFF_DRV_RUNNING when an address is assigned, and do some related cleanup: - In in6if_do_dad(), remove a redundant check for !UP || !RUNNING. There is only one caller in the tree, and it only looks at whether the return value is non-zero. - Have in6if_do_dad() return false if the interface is not multicast-capable. - Set ND6_IFF_NO_DAD when an address is assigned to an stf(4) interface and the interface goes UP as a result. Note that this is not sufficient to fix the problem because the new address is marked as tentative and DAD is started before in6_ifattach() is called. However, setting no_dad is formally correct. - Change nd6_timer() to not flag addresses as tentative if no_dad is set. This is based on a patch from Viktor Dukhovni. Reported by: Viktor Dukhovni <ietf-dane@dukhovni.org> Reviewed by: ae MFC after: 3 weeks Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D19751		2019-03-30 18:00:44 +00:00
..
dest6.c	Remove some unneccessary variable sets in IPv6 code, as detected by	2018-03-24 12:43:34 +00:00
frag6.c	When dropping a fragment queue count the number of fragments in the queue	2019-02-19 19:57:55 +00:00
icmp6.c	Mechanical cleanup of epoch(9) usage in network stack.	2019-01-09 01:11:19 +00:00
icmp6.h
in6_cksum.c	sys: further adoption of SPDX licensing ID tags.	2017-11-20 19:43:44 +00:00
in6_fib.c	Switch RIB and RADIX_NODE_HEAD lock from rwlock(9) to rmlock(9).	2018-06-16 08:26:23 +00:00
in6_fib.h
in6_gif.c	Add the check that current VNET is ready and access to srchash is allowed.	2018-10-23 13:11:45 +00:00
in6_ifattach.c	Do not perform DAD on stf(4) interfaces.	2019-03-30 18:00:44 +00:00
in6_ifattach.h	sys: further adoption of SPDX licensing ID tags.	2017-11-20 19:43:44 +00:00
in6_jail.c	Move most of the contents of opt_compat.h to opt_global.h.	2018-04-06 17:35:35 +00:00
in6_mcast.c	Fix refcounting leaks in IPv6 MLD code leading to loss of IPv6	2019-01-24 08:34:13 +00:00
in6_pcb.c	Mechanical cleanup of epoch(9) usage in network stack.	2019-01-09 01:11:19 +00:00
in6_pcb.h	sys: further adoption of SPDX licensing ID tags.	2017-11-20 19:43:44 +00:00
in6_pcbgroup.c	sys: general adoption of SPDX licensing ID tags.	2017-11-27 15:23:17 +00:00
in6_proto.c	Update for IETF draft-ietf-6man-ipv6only-flag.	2019-03-06 23:31:42 +00:00
in6_rmx.c	Use the new VNET_DEFINE_STATIC macro when we are defining static VNET	2018-07-24 16:35:52 +00:00
in6_rss.c
in6_rss.h
in6_src.c	Use the new VNET_DEFINE_STATIC macro when we are defining static VNET	2018-07-24 16:35:52 +00:00
in6_var.h	Fix refcounting leaks in IPv6 MLD code leading to loss of IPv6	2019-01-24 08:34:13 +00:00
in6.c	Do not perform DAD on stf(4) interfaces.	2019-03-30 18:00:44 +00:00
in6.h	Implement a limit on on the number of IPv6 reassembly queues per bucket.	2018-08-14 17:27:41 +00:00
ip6_ecn.h	sys: further adoption of SPDX licensing ID tags.	2017-11-20 19:43:44 +00:00
ip6_fastfwd.c	New pfil(9) KPI together with newborn pfil API and control utility.	2019-01-31 23:01:03 +00:00
ip6_forward.c	New pfil(9) KPI together with newborn pfil API and control utility.	2019-01-31 23:01:03 +00:00
ip6_gre.c	Add the check that current VNET is ready and access to srchash is allowed.	2018-10-23 13:11:45 +00:00
ip6_id.c	Fix some typos.	2017-12-28 20:40:56 +00:00
ip6_input.c	New pfil(9) KPI together with newborn pfil API and control utility.	2019-01-31 23:01:03 +00:00
ip6_mroute.c	Plug some networking sysctl leaks.	2018-11-22 20:49:41 +00:00
ip6_mroute.h	sys: further adoption of SPDX licensing ID tags.	2017-11-20 19:43:44 +00:00
ip6_output.c	New pfil(9) KPI together with newborn pfil API and control utility.	2019-01-31 23:01:03 +00:00
ip6_var.h	Update for IETF draft-ietf-6man-ipv6only-flag.	2019-03-06 23:31:42 +00:00
ip6.h
ip6protosw.h	sys: further adoption of SPDX licensing ID tags.	2017-11-20 19:43:44 +00:00
ip_fw_nat64.h	Reapply r345274 with build fixes for 32-bit architectures.	2019-03-19 10:57:03 +00:00
ip_fw_nptv6.h	Add ability to use dynamic external prefix in ipfw_nptv6 module.	2018-11-12 11:20:59 +00:00
mld6_var.h	Fix refcounting leaks in IPv6 MLD code leading to loss of IPv6	2019-01-24 08:34:13 +00:00
mld6.c	Fix refcounting leaks in IPv6 MLD code leading to loss of IPv6	2019-01-24 08:34:13 +00:00
mld6.h	sys: general adoption of SPDX licensing ID tags.	2017-11-27 15:23:17 +00:00
nd6_nbr.c	Mechanical cleanup of epoch(9) usage in network stack.	2019-01-09 01:11:19 +00:00
nd6_rtr.c	Update for IETF draft-ietf-6man-ipv6only-flag.	2019-03-07 23:03:39 +00:00
nd6.c	Do not perform DAD on stf(4) interfaces.	2019-03-30 18:00:44 +00:00
nd6.h	Update for IETF draft-ietf-6man-ipv6only-flag.	2019-03-07 23:03:39 +00:00
pim6_var.h	Rework IP encapsulation handling code.	2018-06-05 20:51:01 +00:00
pim6.h	sys: further adoption of SPDX licensing ID tags.	2017-11-20 19:43:44 +00:00
raw_ip6.c	Mechanical cleanup of epoch(9) usage in network stack.	2019-01-09 01:11:19 +00:00
raw_ip6.h	sys: further adoption of SPDX licensing ID tags.	2017-11-20 19:43:44 +00:00
route6.c	sys: further adoption of SPDX licensing ID tags.	2017-11-20 19:43:44 +00:00
scope6_var.h	Constify argument of in6_getscope().	2018-06-05 20:54:29 +00:00
scope6.c	Mechanical cleanup of epoch(9) usage in network stack.	2019-01-09 01:11:19 +00:00
sctp6_usrreq.c	Use a macro to set the assoc state. I missed this in r337706.	2018-08-14 08:33:47 +00:00
sctp6_var.h	Whitespace changes due to changes in ident.	2018-07-19 20:16:33 +00:00
send.c	Use the new VNET_DEFINE_STATIC macro when we are defining static VNET	2018-07-24 16:35:52 +00:00
send.h	sys: general adoption of SPDX licensing ID tags.	2017-11-27 15:23:17 +00:00
tcp6_var.h	sys: further adoption of SPDX licensing ID tags.	2017-11-20 19:43:44 +00:00
udp6_usrreq.c	There are three places where we return from a function which entered an	2018-10-09 13:26:06 +00:00
udp6_var.h	sys: further adoption of SPDX licensing ID tags.	2017-11-20 19:43:44 +00:00