IFC @256277

Approved by: ken (mentor)

Merge from head

IFC @ r255209

IFC @ r254014

- Use time_uptime instead of time_second in data structures for
PF_INET6 in kernel. This fixes various malfunction when the wall time
clock is changed. Bump __FreeBSD_version to 1000041.

- Use

- Use time_uptime instead of time_second in data structures for
PF_INET6 in kernel. This fixes various malfunction when the wall time
clock is changed. Bump __FreeBSD_version to 1000041.

- Use clock_gettime(CLOCK_MONOTONIC_FAST) in userland utilities.

MFC after: 1 month

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IFC @ r253461

IFC @253398

- Add missing "static" keywords.
- Add a check for ifindex to if_indextoifinfo(). It returns NULL when
if_indextoname() fails.

MFC after: 3 days

Merge fresh head.

sync from head

MFC @248093

Fix SIGSEGV when set_short_delay() is called when ifi->ifi_ra_timer is NULL.
This can happen in a short period when a prefix is changed by a rtmsg and a
new interface arrives.

IFC @247348.

- Implement and use usage().
- Document the -C option.
- Allow rtadvd to be invoked without any interfaces on the command line,
and document that possibility.

MFC after: 1 week

IFC @230489 (pending review).

IFC to head to catch up the bhyve branch

Approved by: grehan@

Spelling fixes for usr.sbin/

IFC @ r226824

MFC

Remove RA timer on an interface with !IFF_UP actively after starting to send
clean-up RA messages for shutting down. The RA timers could prevent the rtadvd
daemon from shutting down because ra_outpu

Remove RA timer on an interface with !IFF_UP actively after starting to send
clean-up RA messages for shutting down. The RA timers could prevent the rtadvd
daemon from shutting down because ra_output() just ignored !IFF_UP interfaces
and TRANSITIVE->UNCONFIGURED state transition never happened due to it.

Spotted by: kib
Approved by: re (bz)

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IFC @ r225592

sys/dev/bvm/bvm_console.c - move up to the new alt-break order.

- Fix a bug that can lead to displaying an incorrect value. (r224210)
- Fix an abnormal termination caused by twice of "rtadvctl disable". (r224303)
- Use poll() to wait for the control message socke

- Fix a bug that can lead to displaying an incorrect value. (r224210)
- Fix an abnormal termination caused by twice of "rtadvctl disable". (r224303)
- Use poll() to wait for the control message socket instead of a spin loop.
(r224304)
- s/cmsg_/cm_/ to avoid conflict with CMSG_* symbols for struct cmsghdr.
(r224619)
- Ignore an interface that never sent RAs for graceful shut-down. (r224620)
- Refine log messages. (r225148)
- Fix SIGSEGV when receiving RAs that contain RDNSS and/or DNSSL options.
(r225149)

Approved by: re (kib)

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IFC @ r224187

Integrate from head into the ZFSD feature branch as of revision 224147.

- Improve interface list handling. The rtadvd(8) now supports dynamically-
added/removed interfaces in a more consistent manner and reloading the
configuration file.

- Implement burst unsolicit

- Improve interface list handling. The rtadvd(8) now supports dynamically-
added/removed interfaces in a more consistent manner and reloading the
configuration file.

- Implement burst unsolicited RA sending into the internal RA timer framework
when AdvSendAdvertisements and/or configuration entries are changed as
described in RFC 4861 6.2.4. This fixes issues that make termination of the
rtadvd(8) daemon take very long time.

An interface now has three internal states, UNCONFIGURED, TRANSITIVE, or
CONFIGURED, and the burst unsolicited sending happens in TRANSITIVE.
See rtadvd.h for the details.

- rtadvd(8) now accepts non-existent interfaces as well in the command line.

- Add control socket support and rtadvctl(8) utility to show the RA information
in rtadvd(8). Dumping by SIGUSR1 has been removed in favor of it.

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