Commit Graph

10 Commits

Author SHA1 Message Date
Bjoern A. Zeeb
e448ff6f0e rc: network.subr improve network6_getladdr()
In network6_getladdr() we are iterating over inet6 lines and are not
interested in any others.  So tell ifconfig to limit output to "inet6"
as much as possible.
This is probably a micro-optimisation but was noticed while looking
at other IPv6-related boot-time improvements.

MFC after:	1 week
2021-12-13 22:12:44 +00:00
Bjoern A. Zeeb
dd4d5a5ffb IPv6: set ifdisabled in the kernel rather than in rc
Enable ND6_IFF_IFDISABLED when the interface is created in the
kernel before return to user space.

This avoids a race when an interface is create by a program which
also calls ifconfig IF inet6 -ifdisabled and races with the
devd -> /etc/pccard_ether -> .. netif start IF -> ifdisabled
calls (the devd/rc framework disabling IPv6 again after the program
had enabled it already).

In case the global net.inet6.ip6.accept_rtadv was turned on,
we also default to enabling IPv6 on the interfaces, rather than
disabling them.

PR:		248172
Reported by:	Gert Doering (gert greenie.muc.de)
Reviewed by:	glebius (, phk)
MFC after:	2 weeks
Differential Revision:	https://reviews.freebsd.org/D27324
2020-11-25 20:58:01 +00:00
Eugene Grosbein
064dde3efe network.subr: unobsolete gif_interfaces
There are cases when gif_interfaces cannot be replaced
with cloned_interfaces, such as tunnels with external IPv6 addresses
and internal IPv4 or vice versa. Such configuration requires
extra invocation of ifconfig(8) and supported with gif_interfaces only.

MFC after:	1 week
2020-06-22 17:25:21 +00:00
Eugene Grosbein
734b726d80 network.subr: improve configuration of cloned gif(4) interfaces
ifconfig(8) syntax allows to specify only single address_family,
so we need additional invocation of ifconfig to support configuration
of cloned gif interface that may use different address families
for its internal and external addresses.

Also, ifconfig(8) does not allow to omit "inet6" keyword for address family
specifying IPv6 addresses as outer addresses of the interface.

Also, address_family is not "parameter" and it has to go before parameters
including "tunnel" keyword, so "ifconfig gif0 tunnel inet6 $oip1 $oip2" would be
wrong syntax and only "ifconfig gif0 inet6 tunnel $oip1 $oip2" is right.

With this change, the following works:

gifconfig_gif0="inet6 2a00::1 2a01::1"
ifconfig_gif0="inet 10.0.0.1 10.0.0.2 netmask 255.255.255.252"

MFC after:	2 weeks
2019-04-05 22:45:08 +00:00
Bjoern A. Zeeb
76d32f047a Fix legacy IP autoconfiguration.
It seems my subconcious plan in r345088 to not only prefer IPv6 autoconf
but to also slowly deteriorate legacy IP auto-configuration was uncovered
way too early.

In case IPv6 is a thing yet ipv6_autoconfif was not true, we would not
bring up the interface yet tell the follow-up DHCPv4 configuration in
ifconfig_up() that we did.  So unless you were doing SYNCDHCP or IPv6
you would not get legacy-IP DHCPv4 configuration.

I see multiple problems here: (a) people not yet using IPv6 (obviously a
problem), and (b) the dhclient startup script not running dhclient in
that case despite configured to do so (needs to be investigated seperately).

Reported by:	Pawel Biernacki (pawel.biernacki gmail.com)
Tested by:	Pawel Biernacki
Differential Revision:	https://reviews.freebsd.org/D19488
Pointyhat to:	bz (not sure if it is for breaking or
		for letting them notice it so easily)
2019-03-17 09:31:09 +00:00
Bjoern A. Zeeb
1b5be7204e Enhance IPv6 autoconf startup.
Before this change we would only run rtsol on an interface which was
set to accept_rtadv and did not have rtsold enabled.  This change
removes the latter condition and always runs rtsol (rather than the
deferred rtsold) to reduce the delay until we send the first RS.

This change will also handle the accept_rtadv before dhcp hence
starting IPv6 auto-configuration before IPV4 DHCP.

This change is intended for FreeBSD 13 and later only and will not be MFCed.

Reviewed by:		hrs
Differential Revision:	https://reviews.freebsd.org/D19488
2019-03-13 17:00:15 +00:00
Andriy Voskoboinyk
1a7c1b2cbc rc(8): do not stop dhclient(8) when wpa_supplicant(8) / hostapd(8) is used
They will stop it automatically ('Interface wlan0 is down,
dhclient exiting'); use /etc/rc.d/dhclient stop command only when
none of them is used.

MFC after:	5 days
2019-01-27 15:55:31 +00:00
Gleb Smirnoff
90809c673e Remove code that is dead since r287197. Today wlan(4) interfaces aren't
children of some other interface. Creation happens only in wlan_up().
2018-10-24 20:49:51 +00:00
Eugene Grosbein
3c36368a15 Make upgrade from previous FreeBSD versions less painful
and make previously working configuration like this work again:

gif_interfaces="gif0"
gifconfig_gif0="1.1.1.1 2.2.2.2"
ifconfig_gif0="inet 192.168.1.1 192.168.1.2 netmask 255.255.255.252"

PR:		204700
MFC after:	1 month
2018-10-20 18:01:48 +00:00
Bjoern A. Zeeb
0696600c41 Move the rc framework out of sbin/init into libexec/rc.
The reasons for this are forward looking to pkgbase:
 * /sbin/init is a special binary; try not to replace it with
   every package update because an rc script was touched.
   (a follow-up commit will make init its own package)
 * having rc in its own place will allow more easy replacement
   of the rc framework with alternatives, such as openrc.

Discussed with:		brd (during BSDCam), kmoore
Requested by:		cem, bz
PR:			231522
Approved by:		re (gjb)
2018-10-17 16:49:11 +00:00