4 Commits
0.5-1 ... 0.6-1

Author SHA1 Message Date
Julien Coloos
e47043f3a1 Drop '-m' option when calling dropbear
Latest ArchLinux versions does not handle it.
Boot fs is unlikely to have motd anyway.

v0.6-1
2018-03-13 22:20:27 +01:00
Julien Coloos
4c1a7741d6 README: don't forget to update ChangeLog when necessary 2018-03-13 22:17:19 +01:00
Julien Coloos
6167cbc9cd More details on installation and configuration
Mention dropbear SSH key generation (or conversion from OpenSSH).
Give example to setup IP with grub.
Some fixes/details.
2017-09-03 21:34:10 +02:00
Julien Coloos
a13fecf645 Add comment about keymap HOOK when using non-standard keyboard layout 2017-07-09 16:17:19 +02:00
4 changed files with 30 additions and 9 deletions

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@@ -1,3 +1,8 @@
2018-03-13 Julien Coloos <julien.coloos [at] gmail [dot] com>
* v0.6-1
Dropped '-m' option when calling dropbear (latest ArchLinux version does not handle it)
2017-06-25 Julien Coloos <julien.coloos [at] gmail [dot] com>
* v0.5-1

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@@ -1,6 +1,6 @@
# Maintainer: Julien Coloos <julien.coloos [at] gmail [dot] com>
pkgname=initrd-ssh-cryptsetup
pkgver=0.5
pkgver=0.6
pkgrel=1
pkgdesc="Allows for LUKS-encrypted devices to be unlocked remotely over SSH"
arch=('any')
@@ -10,7 +10,7 @@ depends=('dropbear' 'cryptsetup' 'mkinitcpio-nfs-utils' 'iproute2')
install=$pkgname.install
changelog='ChangeLog'
source=("http://julien.coloos.free.fr/archlinux/$pkgname-$pkgver.tar.xz" "$pkgname.install")
md5sums=('d87a35adbef55db89f32a89f4966a27a'
md5sums=('3fa8f5dd00a85b32025d01e5701e1407'
'ac60109d80e7bb2af0d66e69aaf178a6')
package() {

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@@ -1,16 +1,31 @@
Personal ArchLinux package combining dropbear and cryptsetup in initrd for unlocking LUKS-encrypted devices either locally (boot console) or remotely over SSH.
The code was reworked from [dropbear_initrd_encrypt](https://aur.archlinux.org/packages/dropbear_initrd_encrypt/).
Personal ArchLinux package combining dropbear and cryptsetup in initrd for unlocking LUKS-encrypted devices either locally (boot console) or remotely over SSH.
The code was reworked from legacy dropbear_initrd_encrypt AUR package.
## Installation
After cloning the repo, installation is done as for an AUR package.
After cloning the repo, installation is done as for an AUR package, e.g.:
makepkg -sri
## Dropbear
SSH server key need to be generated for `dropbear`.
Either a new key can be generated with `dropbearkey`, e.g.:
dropbearkey -t ecdsa -f /etc/dropbear/dropbear_ecdsa_host_key
Or an existing OpenSSH key can be converted with `dropbearconvert` (useful so that the server fingerprint is the same with both), e.g.:
dropbearconvert openssh dropbear /etc/ssh/ssh_host_ecdsa_key /etc/dropbear/dropbear_ecdsa_host_key
Note: `rsa` and `dss` (`dsa` in OpenSSH) types are also handled.
## Configuration
As explained upon installation, the following things need to be done:
* add the SSH public key to `/etc/dropbear/initrd.authorized_keys`
* add the authorized SSH public key to `/etc/dropbear/initrd.authorized_keys`
* add the `ip=` kernel command parameter to the bootloader configuration (see https://wiki.archlinux.org/index.php/Mkinitcpio#Using_net)
- e.g. with `grub`: add `ip=:::::eth0:dhcp` to `GRUB_CMDLINE_LINUX_DEFAULT` in `/etc/default/grub`, and re-generate the configuration with `grub-mkconfig -o /boot/grub/grub.cfg`
* in the `HOOKS` section of `/etc/mkinitcpio.conf`, add `ssh-cryptsetup` before `filesystems`; then rebuild the initramfs: `mkinitcpio -p linux`
- when using a non-standard keyboard layout, it is also useful to add the `keymap` hook before `ssh-cryptsetup`, and also move `keyboard` before `keymap`
The LUKS-encrypted devices to unlock are derived from `/etc/crypttab`.
@@ -39,7 +54,8 @@ For example:
2. If `src` was modified
* archive the `src` folder in `$pkgname-$pkgver.tar.xz` file; e.g.: `tar -cJf initrd-ssh-cryptsetup-0.4.tar.xz src`
* upload the archive on the online repository (pointed by `PKGBUILD`)
3. Update `PKGBUILD`
3. Update ChangeLog
4. Update `PKGBUILD`
* bump `pkgver` if `src` was modified, or `pkgrel` if building files were modified
* refresh `md5sums` if necessary (based on `md5sum initrd-ssh-cryptsetup-*.tar.xz initrd-ssh-cryptsetup.install` output)
4. Delete generated archive file if any
5. Delete generated archive file if any

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@@ -163,7 +163,7 @@ EOF
touch "/var/log/lastlog"
msg "Starting dropbear ..."
dropbear -Emsgjk -P "${path_dropbear_pid}" ${sshcs_opt_listen}
dropbear -Esgjk -P "${path_dropbear_pid}" ${sshcs_opt_listen}
# Actual unlocking
sshcs_unlock