Date: Mon, 04 May 2020 06:22:57 +0000 From: "Guy Yur" <guyyur@gmail.com> To: "Alexander V. Chernikov" <melifaro@freebsd.org>, "Steffen Christgau" <mail@s14u.de>, "freebsd-net@freebsd.org" <freebsd-net@freebsd.org>, "Roy Marples" <roy@marples.name> Subject: Re[2]: Notification about tentative IPv6 address from route socket Message-ID: <em01baf849-5432-4658-8b15-adb878efd40e@gandalf> In-Reply-To: <718441588495188@mail.yandex.ru> References: <4f3a314a-f938-476b-f75e-e495756a5488@s14u.de> <718441588495188@mail.yandex.ru>
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Hi, ------ Original Message ------ From: "Alexander V. Chernikov" <melifaro@freebsd.org> To: "Steffen Christgau" <mail@s14u.de>; "freebsd-net@freebsd.org"=20 <freebsd-net@freebsd.org> Sent: 2020-05-03 11:42:07 Subject: Re: Notification about tentative IPv6 address from route socket >30.04.2020, 17:40, "Steffen Christgau" <mail@s14u.de>: >> Hi everybody, >Hi Steffen, >> >>... >> >> 1) Is there a way to get notified about the address being available for >> usage (i.e. not tentative anymore, not duplicated) without _polling_ vi= a >Not that I'm aware of :-( >>... >> >> 2) I know FreeBSD is not Linux, but on Linux with netlink sockets I get >> notified about a) the address appearing (including flags) and b) some >> time later the address being not tentative anymore (detectable via >> flags). I wonder why the route socket on FreeBSD reports an address tha= t >> is currently hardly to use. On the other hand, I understand that >> RTM_NEWADDR does exactly what is documented, i.e. to notify about an >> "address being added to iface". Nevertheless, wouldn't it make sense to >> tell an application that a change for an address takes place? I couldn'= t >> observe such a behavior for IPv6 on FreeBSD. If there is currently no >> really such notification, the kernel could emit a new message like >> RTM_ADDRCHANGE or it may repeats the emission of RTM_NEWADDR (which >It makes total sense. I have plans to update some rtsock internals and wil= l take a look at this one. >Thank you for your suggestion! There is a phabricator differential written by Roy Marples that does=20 this: https://reviews.freebsd.org/D5469 Regards, Guy > >> ... >> >> Regards, Steffen >> _______________________________________________ >>freebsd-net@freebsd.org mailing list >>https://lists.freebsd.org/mailman/listinfo/freebsd-net >> To unsubscribe, send any mail to "freebsd-net-unsubscribe@freebsd.org" >_______________________________________________ >freebsd-net@freebsd.org mailing list >https://lists.freebsd.org/mailman/listinfo/freebsd-net >To unsubscribe, send any mail to "freebsd-net-unsubscribe@freebsd.org"
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