bsdinstall: Add new Auto option to netconfig interface selection dialog

This changes the OK / Cancel buttons into Auto / Manual / Cancel, with
Auto being the default. Manual behaves like OK used to,

bsdinstall: Add new Auto option to netconfig interface selection dialog

This changes the OK / Cancel buttons into Auto / Manual / Cancel, with
Auto being the default. Manual behaves like OK used to, i.e. presents a
series of dialogs asking exactly how to configure the interface, and
Cancel is unchanged, exiting with exit code 1. Auto will attempt to
configure IPv4+DHCP and IPv6+SLAAC with no interaction, failing only if
neither can be configured, thereby supporting all of IPv4-only,
IPv6-only and dual-stack environments. If at least one DNS server is
provided, it will also skip asking for DNS settings, otherwise it will
act like Manual mode for the purposes of DNS settings and prompt. For a
standard dual-stack environment this cuts down the number of netconfig
dialogs from 6 (interface, IPv4, DHCP, IPv6, SLAAC, DNS) to just the
first one.

Reviewed by: brooks
Differential Revision: https://reviews.freebsd.org/D43731

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bsdinstall: Fix broken netconfig persistence for installed system

The replacement of echo >> with sysrc -f used sysrc key value, which
means "read variables key and value" and thus did nothing usefu

bsdinstall: Fix broken netconfig persistence for installed system

The replacement of echo >> with sysrc -f used sysrc key value, which
means "read variables key and value" and thus did nothing useful (and in
fact emitted errors to the log about neither existing). Instead use the
correct sysrc key=value form so the installed system comes back up with
working networking.

Fixes: 60b37735f305 ("bsdinstall netconfig: avoid duplicate entries in rc.conf")

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bsdinstall netconfig: avoid duplicate entries in rc.conf

This uses sysrc to write and update configuration variables in the
temporary configuration file for network access, ._rc.conf.net. This
repla

bsdinstall netconfig: avoid duplicate entries in rc.conf

This uses sysrc to write and update configuration variables in the
temporary configuration file for network access, ._rc.conf.net. This
replaces the previous mechanism, which was simply appending new values
as they were updated.

PR: 212396
Reviewed by: emaste
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D42194

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bsdinstall: avoid conflicts with fd 3

Throughout the bsdinstall script fd 3 is used by f_dprintf (set through
$TERMINAL_STDOUT_PASSTHRU). In several places in the bsdinstalls scripts,
we use fd 3 to

bsdinstall: avoid conflicts with fd 3

Throughout the bsdinstall script fd 3 is used by f_dprintf (set through
$TERMINAL_STDOUT_PASSTHRU). In several places in the bsdinstalls scripts,
we use fd 3 to juggle stdout when calling out to other tools, which can
cause the installer to fail with a "Bad file descriptor" error when
f_dprintf attempts to use it.

This commit replaces all constructs like this:

exec 3>&1
SOME_VARIABLE=$(some command 2>&1 1>&3)
exec 3>&-

With:

exec 5>&1
SOME_VARIABLE=$(some command 2>&1 1>&5)
exec 5>&-

PR: 273148
Reviewed by: corvink
Fixes: 1f7746d81f53447ac15cc99395bb714d4dd0a4da ("bsdinstall: stop messing with file descriptors")
MFC after: 1 week

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Remove $FreeBSD$: one-line sh pattern

Remove /^\s*#[#!]?\s*\$FreeBSD\$.*$\n/

bsdinstall: allow whitelabeling the scripts

Approved by: allanjude, asiciliano
Differential Revision: https://reviews.freebsd.org/D35197
Sponsored by: Rubicon Communications, LLC ("Netgate")

bsdinstall netconfig_ipv4: Replace dialog with bsddialog

Replace (LGPL) dialog utility with (BSD-2-Clause) bsddialog utility.

Reviewed by: bapt
Differential Revision: https://reviews.freebsd.org/D

bsdinstall netconfig_ipv4: Replace dialog with bsddialog

Replace (LGPL) dialog utility with (BSD-2-Clause) bsddialog utility.

Reviewed by: bapt
Differential Revision: https://reviews.freebsd.org/D35267

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bsdinstall netconfig_ipv4: Fix resolv.conf rebuild

After an installation restart (for error or choice) dhclient does not
rebuild resolv.conf so `dialog --mixedform' of "Resolver Configuration"
in bs

bsdinstall netconfig_ipv4: Fix resolv.conf rebuild

After an installation restart (for error or choice) dhclient does not
rebuild resolv.conf so `dialog --mixedform' of "Resolver Configuration"
in bsdinstall/scripts/netconfig draws empty forms. It causes a bad UX,
to see PR262262. Fixed resetting the interface before to run dhclient.

PR: 262262
Reviewed by: bapt
Differential Revision: https://reviews.freebsd.org/D35094

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bsdinstall: only kill the dhclient for the interface we are restarting

PR: 205821
Reported by: mjg
MFC after: 2 weeks
Sponsored by: Klara Inc.
Event: July 2020 Bugathon

bsdinstall: kill dhclient before starting a new instance

PR: 205821
Submitted by: William Orr <will@worrbase.com>
MFC after: 2 weeks
Sponsored by: Klara Inc.
Event: July 2020 Bugathon
Differential

bsdinstall: kill dhclient before starting a new instance

PR: 205821
Submitted by: William Orr <will@worrbase.com>
MFC after: 2 weeks
Sponsored by: Klara Inc.
Event: July 2020 Bugathon
Differential Revision: https://reviews.freebsd.org/D14572

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MFHead @347527

Sponsored by: The FreeBSD Foundation

bsdinstall: up the interface before calling dhclient

MFC after: 1 week

MFhead@r322451

Merge ^/head r321383 through r322397.

bsdinstall: record DHCP config after obtaining lease

Previously we added an ifconfig_$INTERFACE line to rc.conf for each
unsuccessful DCHP attempt.

PR: 219515
Reviewed by: allanjude
MFC after: 1 m

bsdinstall: record DHCP config after obtaining lease

Previously we added an ifconfig_$INTERFACE line to rc.conf for each
unsuccessful DCHP attempt.

PR: 219515
Reviewed by: allanjude
MFC after: 1 month
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D11967

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MFhead@r320180

Merge ^/head r319973 through 321382.

Merge ^/head r320994 through r321238.

bsdinstall: remove EOL whitespace

bsdinstall: unbreak static address assignment for wired networks.

This fixes regression introduced in r298946 (fixes static address
assignment for wireless networks).

Reported & submitted by: allan

bsdinstall: unbreak static address assignment for wired networks.

This fixes regression introduced in r298946 (fixes static address
assignment for wireless networks).

Reported & submitted by: allanjude

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bsdinstall: fix static address assignment for protected wireless networks.

Filter out IFCONFIG_PREFIX variable (which may contain WPA keyword)
from ifconfig parameters.

PR: 169199

Merge from head

Sponsored by: Gandi.net

Merge from head

Sync up with head (up to r288341).

Merge ^/head r287680 through r287877.