Add things for network luks unlock

src/mkinitcpio-netconf/.SRCINFO

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+# Generated by mksrcinfo v8
+# Fri Oct 21 11:22:56 UTC 2016
+pkgbase = mkinitcpio-netconf
+	pkgdesc = Archlinux mkinitcpio hook for configuring early userspace networking
+	pkgver = 0.0.4
+	pkgrel = 2
+	url = https://github.com/grazzolini/mkinitcpio-netconf
+	changelog = Changelog
+	arch = any
+	license = BSD
+	depends = mkinitcpio-nfs-utils
+	depends = iproute2
+	source = mkinitcpio-netconf-0.0.4.tar.gz::https://github.com/grazzolini/mkinitcpio-netconf/archive/v0.0.4.tar.gz
+	sha512sums = 06ac202410964740785d2977f7918981276e10568260433436c51a1d540152cc28462e46dae6bfa31acd1fafa9ebe1e4f57ca90d7754a09ccaba142c8d48b228
+
+pkgname = mkinitcpio-netconf
+

src/mkinitcpio-netconf/.gitignore

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+v*.tar.gz
+mkinitcpio-netconf-*-any.pkg.tar.xz
+mkinitcpio-netconf-*.tar.gz
+develop.*
+pkg/*
+src/*

src/mkinitcpio-netconf/Changelog

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+2015-08-11 Giancarlo Razzolini <grazzolini@gmail.com>
+
+	* 0.0.2 :
+	- Initial support for systemd enabled initrd:
+		+ Check for any files ending in .initramfs in the /etc/systemd/network directory, and copies them to the initrd, and also copy and install systemd-networkd.
+		+ There are some caveats, specially that it won't remove any ip addresses added to the interface: https://github.com/systemd/systemd/issues/780
+	- Corrected the help text.
+
+2015-07-15 Giancarlo Razzolini <grazzolini@gmail.com>
+
+	* 0.0.1 :
+	- Initial release.
+	- Right now it only support the ip= configuration mode.

src/mkinitcpio-netconf/PKGBUILD

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+# Maintainer: Giancarlo Razzolini <grazzolini@gmail.com>
+pkgname=mkinitcpio-netconf
+pkgver=0.0.4
+pkgrel=2
+pkgdesc="Archlinux mkinitcpio hook for configuring early userspace networking"
+arch=('any')
+url="https://github.com/grazzolini/mkinitcpio-netconf"
+license=('BSD')
+depends=('mkinitcpio-nfs-utils' 'iproute2')
+#install=$pkgname.install
+source=("${pkgname}-${pkgver}.tar.gz::$url/archive/v$pkgver.tar.gz")
+changelog='Changelog'
+sha512sums=('06ac202410964740785d2977f7918981276e10568260433436c51a1d540152cc28462e46dae6bfa31acd1fafa9ebe1e4f57ca90d7754a09ccaba142c8d48b228')
+
+package() {
+  install -Dm644 "$srcdir/$pkgname-$pkgver/netconf_hook"        "$pkgdir/usr/lib/initcpio/hooks/netconf"
+  install -Dm644 "$srcdir/$pkgname-$pkgver/netconf_install"     "$pkgdir/usr/lib/initcpio/install/netconf"
+  install -Dm644 "$srcdir/$pkgname-$pkgver/LICENSE"             "$pkgdir/usr/share/licenses/$pkgname/LICENSE"
+
+}

src/mkinitcpio-netconf/mkinitcpio-netconf.install

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+#!/bin/bash
+
+post_install() {
+    cat<<INSTALLEOF
+    This hook will parse the ip= kernel command line variable and configure any
+    interfaces specified using ipconfig found in the mkinitcpio-nfs-utils package.
+    It is meant to be used alongside other hooks that need early userspace networking
+    such as, mkinitcpio-dropbear. There is also an optional netconf_timeout kernel
+    command line argument that can be used when obtaining the ip address using dhcp, so
+    that ipconfig will not hang forever waiting for an IP addres. You can nest multiple ip=
+    parameters inside a single ip= parameter, separated by : to configure multiple interfaces.
+    There is no limit on the number of interfaces configured, but the kernel cmdline size.
+    To use this hook add the netconf hook before any other hook that need networking in
+    "/etc/mkinitcpio.conf" and rebuild the initramfs.
+INSTALLEOF
+}
+
+post_remove() {
+    cat<<REMOVEEOF
+    Remove the "netconf" from the "HOOKS" section in "/etc/mkinitcpio.conf"
+    and rebuild the initramfs. Also, remove the ip= cmdline parameter and regenerate
+    your bootloader configuration.
+REMOVEEOF
+}
+
+post_upgrade() {
+    cat<<UPGRADEEOF
+    There is now an optional kernel command line parameter named netconf_timeout that
+    is used to pass the timeout option to ipconfig. This is means that when using
+    ip=dhcp as a kernel command line parameter, ipconfig will not hang forever if the
+    dhcp server is unavailable.
+
+    You can also now nest multiple ip= parameters inside a single ip= parameter,
+    separated by : to configure multiple interfaces. There is no limit on the number
+    of interfaces configured, but the kernel cmdline size.
+UPGRADEEOF
+}