> On 21. Jun 2020, at 23:12, Rodney W. Grimes <freebsd-rwg_at_gndrsh.dnsmgr.net> wrote: > >>> On Sun, 2020-06-21 at 14:54 +0200, Michael Tuexen wrote: >>>>> On 21. Jun 2020, at 14:28, Kostya Berger <bergerkos_at_yahoo.co.uk> >>>>> wrote: >>>>> >>>>> Ok, it turns out, it gives the previously mentioned error only if I >>>>> use VNC server string 0.0.0.0:5900 (as I always did). in my VNC >>>>> client.But when replaced with127.0.0.1:5900it connects all right. >>>> >>>> I don't hink 0.0.0.0 is a valid destination address you can use in >>>> connect(). Using 127.0.0.1 should >>>> be fine. >> >> I do not believe that this is a destination address when your talking >> about 0.0.0.0:5900 on the VNC server side, that is a wild card accept >> any address and if this has been broken.. it must be fixed! >> >>>> I guess, https://svnweb.freebsd.org/changeset/base/361752 is the >>>> relevant commit here. >>>> >>> >>> *BSD has always accepted 0 as a synonym for localhost (and iirc, linux >>> does not). If this no longer works, it's a regression which is going >>> to cause existing applications and scripts to fail. At the very least >>> it deserves an entry in UPDATING. >> >> I am not aware of that, but can not deny it either, and just confirmed >> it to be true: >> root {1002}# telnet 0.0.0.0 22 >> Trying 0.0.0.0... >> Connected to 0.0.0.0. >> Escape character is '^]'. >> SSH-2.0-OpenSSH_7.8 FreeBSD-20180909 > > And to add the netstat data to show what connected: > tcp4 0 0 127.0.0.1.22 127.0.0.1.43135 ESTABLISHED > tcp4 38 0 127.0.0.1.43135 127.0.0.1.22 ESTABLISHED > > Can we back this commit out, discuss it in next weeks call, > and then find a way forward? The commit changes the behaviour of calling connect(..., addr, ...) on a TCP/IPv4 socket by (a) failing it and indicating EAFNOSUPPORT if addr == 255.255.255.255 (b) failing it and indicating EAFNOSUPPORT if addr == 0.0.0.0 I think it is correct in doing (a). There is no doubt about that, since TCP only supports unicast. (b) can be changed. As we discussed, for IPv6 connecting to ::0 is changed to ::1 in https://svnweb.freebsd.org/base/head/sys/netinet6/in6_pcb.c?view=markup#l370. However, in_pcbladdr() does not do that mapping. Let me figure out why 0.0.0.0 works as an address you can connect to. Then I can prepare a patch to allow 0.0.0.0 again. I don't see a reason why we need to revert r361752 and introduce it partially again. OK? Best regards Michael > >> >> INADDR_ANY is the wildcard listen address, but as a destination what code remapped >> it to 127.0.0.1? >> >> We should very seriously consider restoring this behavior. >> >>> -- Ian >>> >>>> Best regards >>>> Michael >>>>> ?????????? ?? Yahoo ????? ??? Android >>>>> >>>>> ??, 21 ???. 2020 ? 9:40 Kostya Berger<bergerkos_at_yahoo.co.uk> >>>>> ???????(-?): Hi,upgraded to 362292 via buildworld.Now I cannot >>>>> connect to my bhyve guest as I used to: neither via VNC nor via >>>>> RDP.VNC gets error: unable to connect the socket. Address family >>>>> not supported by protocol family (47). >>>>> Neither can I ping my bhyve IP (it uses a separate NIC and should >>>>> have no problems) >>>>> Internet connectivity is ok and I can ping other hosts on my >>>>> network. >>>>> In 359997 all works fine. >>>>> ?????????? ?? Yahoo ????? ??? Android >>>>> _______________________________________________ >>>>> freebsd-current_at_freebsd.org mailing list >>>>> https://lists.freebsd.org/mailman/listinfo/freebsd-current >>>>> To unsubscribe, send any mail to " >>>>> freebsd-current-unsubscribe_at_freebsd.org" >>>> >>>> _______________________________________________ >>>> freebsd-current_at_freebsd.org mailing list >>>> https://lists.freebsd.org/mailman/listinfo/freebsd-current >>>> To unsubscribe, send any mail to " >>>> freebsd-current-unsubscribe_at_freebsd.org" >>>> >>> >>> _______________________________________________ >>> freebsd-current_at_freebsd.org mailing list >>> https://lists.freebsd.org/mailman/listinfo/freebsd-current >>> To unsubscribe, send any mail to "freebsd-current-unsubscribe_at_freebsd.org" >>> >>> >> >> -- >> Rod Grimes rgrimes_at_freebsd.org >> _______________________________________________ >> freebsd-current_at_freebsd.org mailing list >> https://lists.freebsd.org/mailman/listinfo/freebsd-current >> To unsubscribe, send any mail to "freebsd-current-unsubscribe_at_freebsd.org" >> > > -- > Rod Grimes rgrimes_at_freebsd.orgReceived on Sun Jun 21 2020 - 19:37:25 UTC
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