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Author SHA1 Message Date
cd90564f60 protect fido2luks.conf from being overwritten
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2020-08-11 23:08:12 +02:00
0f6d79a7e4 get plymouth to display a message
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2020-08-11 22:41:21 +02:00
4136b1bfad relicense to MPL
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continuous-integration/drone/push Build is failing
2020-07-27 09:22:02 +02:00
81016a1a42 require MPL for new contributions
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2020-07-26 21:11:03 +02:00
9 changed files with 203 additions and 358 deletions

View File

@@ -7,17 +7,13 @@ steps:
commands: commands:
- rustup component add rustfmt - rustup component add rustfmt
- cargo fmt --all -- --check - cargo fmt --all -- --check
- name: readme
image: msrd0/cargo-readme@sha256:2b916451e576cda54f1e02703fa092b9d5af95bcf48426a1ef42872a19467fd3
commands:
- cargo readme > ~README.md
- cmp -s README.md ~README.md || (printf "README.md need to be updated:\n"; cat ~README.md; exit 1)
- name: test - name: test
image: rust:1.43.0 image: rust:1.43.0
commands: commands:
- apt update && apt install -y libkeyutils-dev libclang-dev clang pkg-config - apt update && apt install -y libkeyutils-dev libclang-dev clang pkg-config
- echo 'deb http://http.us.debian.org/debian unstable main non-free contrib' >> /etc/apt/sources.list.d/unstable.list && apt update && apt install -y libcryptsetup-dev - echo 'deb http://http.us.debian.org/debian unstable main non-free contrib' >> /etc/apt/sources.list.d/unstable.list && apt update && apt install -y libcryptsetup-dev
- cargo test - cargo test
- name: publish - name: publish
image: rust:1.43.0 image: rust:1.43.0
environment: environment:
@@ -31,4 +27,3 @@ steps:
- cargo publish --all-features - cargo publish --all-features
when: when:
event: tag event: tag
depends_on: ["fmt", "test", "readme"]

304
Cargo.lock generated
View File

@@ -1,10 +1,25 @@
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"rustc-hash", "rustc-hash",
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@@ -181,12 +188,12 @@ dependencies = [
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@@ -284,10 +292,10 @@ checksum = "f0c960ae2da4de88a91b2d920c2a7233b400bc33cb28453a2987822d8392519b"
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@@ -297,8 +305,8 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
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@@ -321,16 +329,16 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
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@@ -357,19 +365,19 @@ dependencies = [
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dependencies = [ dependencies = [
"unicode-xid 0.2.0", "unicode-xid 0.2.1",
] ]
[[package]] [[package]]
@@ -640,11 +667,11 @@ dependencies = [
[[package]] [[package]]
name = "quote" name = "quote"
version = "1.0.3" version = "1.0.7"
source = "registry+https://github.com/rust-lang/crates.io-index" source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "2bdc6c187c65bca4260c9011c9e3132efe4909da44726bad24cf7572ae338d7f" checksum = "aa563d17ecb180e500da1cfd2b028310ac758de548efdd203e18f283af693f37"
dependencies = [ dependencies = [
"proc-macro2 1.0.10", "proc-macro2 1.0.19",
] ]
[[package]] [[package]]
@@ -787,9 +814,9 @@ dependencies = [
[[package]] [[package]]
name = "regex" name = "regex"
version = "1.3.7" version = "1.3.9"
source = "registry+https://github.com/rust-lang/crates.io-index" source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "a6020f034922e3194c711b82a627453881bc4682166cabb07134a10c26ba7692" checksum = "9c3780fcf44b193bc4d09f36d2a3c87b251da4a046c87795a0d35f4f927ad8e6"
dependencies = [ dependencies = [
"aho-corasick", "aho-corasick",
"memchr", "memchr",
@@ -799,9 +826,9 @@ dependencies = [
[[package]] [[package]]
name = "regex-syntax" name = "regex-syntax"
version = "0.6.17" version = "0.6.18"
source = "registry+https://github.com/rust-lang/crates.io-index" source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "7fe5bd57d1d7414c6b5ed48563a2c855d995ff777729dcd91c369ec7fea395ae" checksum = "26412eb97c6b088a6997e05f69403a802a92d520de2f8e63c2b65f9e0f47c4e8"
[[package]] [[package]]
name = "ring" name = "ring"
@@ -858,9 +885,9 @@ checksum = "dcf128d1287d2ea9d80910b5f1120d0b8eede3fbf1abe91c40d39ea7d51e6fda"
[[package]] [[package]]
name = "ryu" name = "ryu"
version = "1.0.4" version = "1.0.5"
source = "registry+https://github.com/rust-lang/crates.io-index" source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "ed3d612bc64430efeb3f7ee6ef26d590dce0c43249217bddc62112540c7941e1" checksum = "71d301d4193d031abdd79ff7e3dd721168a9572ef3fe51a1517aba235bd8f86e"
[[package]] [[package]]
name = "scopeguard" name = "scopeguard"
@@ -885,26 +912,26 @@ checksum = "388a1df253eca08550bef6c72392cfe7c30914bf41df5269b68cbd6ff8f570a3"
[[package]] [[package]]
name = "serde" name = "serde"
version = "1.0.106" version = "1.0.115"
source = "registry+https://github.com/rust-lang/crates.io-index" source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "36df6ac6412072f67cf767ebbde4133a5b2e88e76dc6187fa7104cd16f783399" checksum = "e54c9a88f2da7238af84b5101443f0c0d0a3bbdc455e34a5c9497b1903ed55d5"
[[package]] [[package]]
name = "serde_derive" name = "serde_derive"
version = "1.0.106" version = "1.0.115"
source = "registry+https://github.com/rust-lang/crates.io-index" source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "9e549e3abf4fb8621bd1609f11dfc9f5e50320802273b12f3811a67e6716ea6c" checksum = "609feed1d0a73cc36a0182a840a9b37b4a82f0b1150369f0536a9e3f2a31dc48"
dependencies = [ dependencies = [
"proc-macro2 1.0.10", "proc-macro2 1.0.19",
"quote 1.0.3", "quote 1.0.7",
"syn 1.0.18", "syn 1.0.38",
] ]
[[package]] [[package]]
name = "serde_json" name = "serde_json"
version = "1.0.51" version = "1.0.57"
source = "registry+https://github.com/rust-lang/crates.io-index" source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "da07b57ee2623368351e9a0488bb0b261322a15a6e0ae53e243cbdc0f4208da9" checksum = "164eacbdb13512ec2745fb09d51fd5b22b0d65ed294a1dcf7285a360c80a675c"
dependencies = [ dependencies = [
"itoa", "itoa",
"ryu", "ryu",
@@ -931,9 +958,9 @@ checksum = "6446ced80d6c486436db5c078dde11a9f73d42b57fb273121e160b84f63d894c"
[[package]] [[package]]
name = "structopt" name = "structopt"
version = "0.3.14" version = "0.3.16"
source = "registry+https://github.com/rust-lang/crates.io-index" source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "863246aaf5ddd0d6928dfeb1a9ca65f505599e4e1b399935ef7e75107516b4ef" checksum = "de5472fb24d7e80ae84a7801b7978f95a19ec32cb1876faea59ab711eb901976"
dependencies = [ dependencies = [
"clap", "clap",
"lazy_static", "lazy_static",
@@ -942,15 +969,15 @@ dependencies = [
[[package]] [[package]]
name = "structopt-derive" name = "structopt-derive"
version = "0.4.7" version = "0.4.9"
source = "registry+https://github.com/rust-lang/crates.io-index" source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "d239ca4b13aee7a2142e6795cbd69e457665ff8037aed33b3effdc430d2f927a" checksum = "1e0eb37335aeeebe51be42e2dc07f031163fbabfa6ac67d7ea68b5c2f68d5f99"
dependencies = [ dependencies = [
"heck", "heck",
"proc-macro-error", "proc-macro-error",
"proc-macro2 1.0.10", "proc-macro2 1.0.19",
"quote 1.0.3", "quote 1.0.7",
"syn 1.0.18", "syn 1.0.38",
] ]
[[package]] [[package]]
@@ -966,36 +993,25 @@ dependencies = [
[[package]] [[package]]
name = "syn" name = "syn"
version = "1.0.18" version = "1.0.38"
source = "registry+https://github.com/rust-lang/crates.io-index" source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "410a7488c0a728c7ceb4ad59b9567eb4053d02e8cc7f5c0e0eeeb39518369213" checksum = "e69abc24912995b3038597a7a593be5053eb0fb44f3cc5beec0deb421790c1f4"
dependencies = [ dependencies = [
"proc-macro2 1.0.10", "proc-macro2 1.0.19",
"quote 1.0.3", "quote 1.0.7",
"unicode-xid 0.2.0", "unicode-xid 0.2.1",
]
[[package]]
name = "syn-mid"
version = "0.5.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "7be3539f6c128a931cf19dcee741c1af532c7fd387baa739c03dd2e96479338a"
dependencies = [
"proc-macro2 1.0.10",
"quote 1.0.3",
"syn 1.0.18",
] ]
[[package]] [[package]]
name = "synstructure" name = "synstructure"
version = "0.12.3" version = "0.12.4"
source = "registry+https://github.com/rust-lang/crates.io-index" source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "67656ea1dc1b41b1451851562ea232ec2e5a80242139f7e679ceccfb5d61f545" checksum = "b834f2d66f734cb897113e34aaff2f1ab4719ca946f9a7358dba8f8064148701"
dependencies = [ dependencies = [
"proc-macro2 1.0.10", "proc-macro2 1.0.19",
"quote 1.0.3", "quote 1.0.7",
"syn 1.0.18", "syn 1.0.38",
"unicode-xid 0.2.0", "unicode-xid 0.2.1",
] ]
[[package]] [[package]]
@@ -1043,9 +1059,9 @@ checksum = "e83e153d1053cbb5a118eeff7fd5be06ed99153f00dbcd8ae310c5fb2b22edc0"
[[package]] [[package]]
name = "unicode-width" name = "unicode-width"
version = "0.1.7" version = "0.1.8"
source = "registry+https://github.com/rust-lang/crates.io-index" source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "caaa9d531767d1ff2150b9332433f32a24622147e5ebb1f26409d5da67afd479" checksum = "9337591893a19b88d8d87f2cec1e73fad5cdfd10e5a6f349f498ad6ea2ffb1e3"
[[package]] [[package]]
name = "unicode-xid" name = "unicode-xid"
@@ -1055,9 +1071,9 @@ checksum = "fc72304796d0818e357ead4e000d19c9c174ab23dc11093ac919054d20a6a7fc"
[[package]] [[package]]
name = "unicode-xid" name = "unicode-xid"
version = "0.2.0" version = "0.2.1"
source = "registry+https://github.com/rust-lang/crates.io-index" source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "826e7639553986605ec5979c7dd957c7895e93eabed50ab2ffa7f6128a75097c" checksum = "f7fe0bb3479651439c9112f72b6c505038574c9fbb575ed1bf3b797fa39dd564"
[[package]] [[package]]
name = "untrusted" name = "untrusted"
@@ -1076,15 +1092,15 @@ dependencies = [
[[package]] [[package]]
name = "vec_map" name = "vec_map"
version = "0.8.1" version = "0.8.2"
source = "registry+https://github.com/rust-lang/crates.io-index" source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "05c78687fb1a80548ae3250346c3db86a80a7cdd77bda190189f2d0a0987c81a" checksum = "f1bddf1187be692e79c5ffeab891132dfb0f236ed36a43c7ed39f1165ee20191"
[[package]] [[package]]
name = "version_check" name = "version_check"
version = "0.9.1" version = "0.9.2"
source = "registry+https://github.com/rust-lang/crates.io-index" source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "078775d0255232fb988e6fccf26ddc9d1ac274299aaedcedce21c6f72cc533ce" checksum = "b5a972e5669d67ba988ce3dc826706fb0a8b01471c088cb0b6110b805cc36aed"
[[package]] [[package]]
name = "which" name = "which"
@@ -1097,9 +1113,9 @@ dependencies = [
[[package]] [[package]]
name = "winapi" name = "winapi"
version = "0.3.8" version = "0.3.9"
source = "registry+https://github.com/rust-lang/crates.io-index" source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "8093091eeb260906a183e6ae1abdba2ef5ef2257a21801128899c3fc699229c6" checksum = "5c839a674fcd7a98952e593242ea400abe93992746761e38641405d28b00f419"
dependencies = [ dependencies = [
"winapi-i686-pc-windows-gnu", "winapi-i686-pc-windows-gnu",
"winapi-x86_64-pc-windows-gnu", "winapi-x86_64-pc-windows-gnu",

View File

@@ -1,6 +1,6 @@
[package] [package]
name = "fido2luks" name = "fido2luks"
version = "0.2.9" version = "0.2.10"
authors = ["shimunn <shimun@shimun.net>"] authors = ["shimunn <shimun@shimun.net>"]
edition = "2018" edition = "2018"
@@ -11,7 +11,7 @@ repository = "https://github.com/shimunn/fido2luks"
readme = "README.md" readme = "README.md"
keywords = ["luks", "fido2", "u2f"] keywords = ["luks", "fido2", "u2f"]
categories = ["command-line-utilities"] categories = ["command-line-utilities"]
license = "MPL 2.0" license = "MPL-2.0"
[dependencies] [dependencies]
ctap_hmac = { version="0.4.2", features = ["request_multiple"] } ctap_hmac = { version="0.4.2", features = ["request_multiple"] }
@@ -42,3 +42,4 @@ assets = [
["initramfs-tools/hook/fido2luks.sh", "etc/initramfs-tools/hooks/", "755" ], ["initramfs-tools/hook/fido2luks.sh", "etc/initramfs-tools/hooks/", "755" ],
["initramfs-tools/fido2luks.conf", "etc/", "644"], ["initramfs-tools/fido2luks.conf", "etc/", "644"],
] ]
conf-files = ["/etc/fido2luks.conf"]

View File

@@ -1,75 +1,86 @@
[![Crates.io](https://img.shields.io/crates/v/fido2luks.svg)](https://crates.io/crates/fido2luks) # fido2luks [![Crates.io Version](https://img.shields.io/crates/v/fido2luks.svg)](https://crates.io/crates/fido2luks)
# fido2luks
This will allow you to unlock your luks encrypted disk with an fido2 compatible key This will allow you to unlock your luks encrypted disk with an fido2 compatible key
Note: This has only been tested under Fedora 31, [Ubuntu 20.04](initramfs-tools/), [NixOS](https://nixos.org/nixos/manual/#sec-luks-file-systems-fido2) using a Solo Key, Trezor Model T Note: This has only been tested under Fedora 31, [Ubuntu 20.04](initramfs-tools/), [NixOS](https://nixos.org/nixos/manual/#sec-luks-file-systems-fido2) using a Solo Key, Trezor Model T
### Setup ## Setup
#### Prerequisites ### Prerequisites
```rust ```
dnf install clang cargo cryptsetup-devel -y dnf install clang cargo cryptsetup-devel -y
``` ```
#### Device ### Device
```rust ```
git clone https://github.com/shimunn/fido2luks.git && cd fido2luks git clone https://github.com/shimunn/fido2luks.git && cd fido2luks
# Alternativly cargo build --release && sudo cp target/release/fido2luks /usr/bin/
sudo -E cargo install -f --path . --root /usr sudo -E cargo install -f --path . --root /usr
# Copy template
cp dracut/96luks-2fa/fido2luks.conf /etc/ cp dracut/96luks-2fa/fido2luks.conf /etc/
# Name is optional but useful if your authenticator has a display
echo FIDO2LUKS_CREDENTIAL_ID=$(fido2luks credential [NAME]) >> /etc/fido2luks.conf echo FIDO2LUKS_CREDENTIAL_ID=$(fido2luks credential [NAME]) >> /etc/fido2luks.conf
# Load config into env
set -a set -a
. /etc/fido2luks.conf . /etc/fido2luks.conf
# Repeat for each luks volume
# You can also use the `--token` flag when using LUKS2 which will then store the credential in the LUKS header,
# enabling you to use `fido2luks open-token` without passing a credential as parameter
sudo -E fido2luks -i add-key /dev/disk/by-uuid/<DISK_UUID> sudo -E fido2luks -i add-key /dev/disk/by-uuid/<DISK_UUID>
# Test(only works if the luks container isn't active)
sudo -E fido2luks -i open /dev/disk/by-uuid/<DISK_UUID> luks-<DISK_UUID> sudo -E fido2luks -i open /dev/disk/by-uuid/<DISK_UUID> luks-<DISK_UUID>
``` ```
#### Dracut ### Dracut
```rust ```
cd dracut cd dracut
sudo make install sudo make install
``` ```
#### Grub ### Grub
Add `rd.luks.2fa=<CREDENTIAL_ID>:<DISK_UUID>` to `GRUB_CMDLINE_LINUX` in /etc/default/grub Add `rd.luks.2fa=<CREDENTIAL_ID>:<DISK_UUID>` to `GRUB_CMDLINE_LINUX` in /etc/default/grub
Note: This is only required for your root disk, systemd will try to unlock all other LUKS partions using the same key if you added it using `fido2luks add-key` Note: This is only required for your root disk, systemd will try to unlock all other LUKS partions using the same key if you added it using `fido2luks add-key`
```rust ```
grub2-mkconfig > /boot/grub2/grub.cfg grub2-mkconfig > /boot/grub2/grub.cfg
``` ```
I'd also recommend to copy the executable onto /boot so that it is accessible in case you have to access your disk from a rescue system I'd also recommend to copy the executable onto /boot so that it is accessible in case you have to access your disk from a rescue system
```rust ```
mkdir /boot/fido2luks/ mkdir /boot/fido2luks/
cp /usr/bin/fido2luks /boot/fido2luks/ cp /usr/bin/fido2luks /boot/fido2luks/
cp /etc/fido2luks.conf /boot/fido2luks/ cp /etc/fido2luks.conf /boot/fido2luks/
``` ```
### Test ## Test
Just reboot and see if it works, if that's the case you should remove your old less secure password from your LUKS header: Just reboot and see if it works, if that's the case you should remove your old less secure password from your LUKS header:
```rust ```
# Recommend in case you lose your authenticator, store this backupfile somewhere safe
cryptsetup luksHeaderBackup /dev/disk/by-uuid/<DISK_UUID> --header-backup-file luks_backup_<DISK_UUID> cryptsetup luksHeaderBackup /dev/disk/by-uuid/<DISK_UUID> --header-backup-file luks_backup_<DISK_UUID>
# There is no turning back if you mess this up, make sure you made a backup
# You can also pass `--token` if you're using LUKS2 which will then store the credential in the LUKS header,
# which will enable you to use `fido2luks open-token` without passing a credential as parameter
fido2luks -i add-key --exclusive /dev/disk/by-uuid/<DISK_UUID> fido2luks -i add-key --exclusive /dev/disk/by-uuid/<DISK_UUID>
``` ```
### Addtional settings ## Addtional settings
#### Password less ### Password less
Remove your previous secret as described in the next section, in case you've already added one. Remove your previous secret as described in the next section, in case you've already added one.
@@ -78,18 +89,18 @@ but be warned that this password will be included to into your initramfs.
Import the new config into env: Import the new config into env:
```rust ```
set -a set -a
. /etc/fido2luks.conf . /etc/fido2luks.conf
``` ```
Then add the new secret to each device and update dracut afterwards `dracut -f` Then add the new secret to each device and update dracut afterwards `dracut -f`
### Removal ## Removal
Remove `rd.luks.2fa` from `GRUB_CMDLINE_LINUX` in /etc/default/grub Remove `rd.luks.2fa` from `GRUB_CMDLINE_LINUX` in /etc/default/grub
```rust ```
set -a set -a
. fido2luks.conf . fido2luks.conf
sudo -E fido2luks -i replace-key /dev/disk/by-uuid/<DISK_UUID> sudo -E fido2luks -i replace-key /dev/disk/by-uuid/<DISK_UUID>
@@ -99,11 +110,14 @@ sudo rm -rf /usr/lib/dracut/modules.d/96luks-2fa /etc/dracut.conf.d/luks-2fa.con
## License ## License
Licensed under the Mozilla Public License 2.0, ([LICENSE-MPL](LICENSE) or https://www.mozilla.org/en-US/MPL/2.0/) Licensed under
* Mozilla Public License 2.0, ([LICENSE-MPL](LICENSE-MPL) or https://www.mozilla.org/en-US/MPL/2.0/)
### Contribution ### Contribution
Unless you explicitly state otherwise, any contribution intentionally Unless you explicitly state otherwise, any contribution intentionally
submitted for inclusion in the work by you, as defined in the MPL 2.0 submitted for inclusion in the work by you, as defined in the MPL 2.0
license, shall be dual licensed as above, without any additional terms or license, shall be licensed as above, without any additional terms or
conditions. conditions.

View File

@@ -1,15 +0,0 @@
[![Crates.io](https://img.shields.io/crates/v/fido2luks.svg)](https://crates.io/crates/fido2luks)
# {{crate}}
{{readme}}
## License
Licensed under the Mozilla Public License 2.0, ([LICENSE-MPL](LICENSE) or https://www.mozilla.org/en-US/MPL/2.0/)
### Contribution
Unless you explicitly state otherwise, any contribution intentionally
submitted for inclusion in the work by you, as defined in the MPL 2.0
license, shall be dual licensed as above, without any additional terms or
conditions.

View File

@@ -3,7 +3,9 @@ set -a
. /etc/fido2luks.conf . /etc/fido2luks.conf
if [ -z "$FIDO2LUKS_PASSWORD_HELPER" ]; then if [ -z "$FIDO2LUKS_PASSWORD_HELPER" ]; then
export FIDO2LUKS_PASSWORD_HELPER="plymouth ask-for-password --promt 'FIDO2 password salt for $CRYPTTAB_NAME'" MSG="FIDO2 password salt for $CRYPTTAB_NAME"
export FIDO2LUKS_PASSWORD_HELPER="plymouth ask-for-password --promt '$MSG'"
plymouth message --text "$MSG"
fi fi
fido2luks print-secret --bin fido2luks print-secret --bin

View File

@@ -1,54 +1,3 @@
//! ## Command line interface
//! ### Generating a credential
//! Credentials can be generated by using `fido2luks credential`
//! this command will take an optional string as username your authenticator might be able to display
//!
//! `fido2luks credential 'My 2FA protected disk'`
//!
//! It is advisable to repeat this step and the next step for more than one authenticator, as backup
//! ### Securing a disk
//! To utilise the previously generated credential you simply run
//!
//! `fido2luks -i add-key <device> [<credential>,..]`
//!
//! You can also use `fido2luks -i add-key --exclusive <device> [<credential>,..]`
//!
//! which will add a new key and then remove ALL other keys.
//! This command supports a fair amount of options for instance `--keyfile` which will allow you to
//! add an authenticator to the `<device>`
//!
//! `-f` will utilise an previously added fido protected key to add another one
//!
//! `--token` will store the credential within the LUKS header, making it easily accessible even if
//! you're unable to boot your system.
//!
//!
//! `fido2luks -i replace-key <device> [<credential>,..]`
//! works in a similar fashion but instead of adding a new key it'll update an existing one
//!
//!
//! ### Unlocking a disk
//! To open an LUKS container using your authenticator you simply run
//!
//! `fido2luks -i open <device> <name> [<credential>,..]`
//!
//! if successful your LUKS container will be accessible under `/dev/mapper/<name>`
//! To avoid having to specify your credentials you may want to to use
//!
//! `fido2luks -i open-token <device> <name>`
//!
//! which should even be faster since it allows for the credential to be matched to the right keyslot
//!
//!
//! ### Common options
//!
//! `--salt` Determines what data will be provided to the authenticator in order to derive the secret, the default being `ask` which will prompt the user for an password.
//! Alternatives being `file:<PATH>` where the specified file will be hashed and then used as input, the same goes for the `string:<STRING>` option which will behave in the same manner as the `ask` option.
//!
//! `--pin` Allows for a PIN to be passed to the authenticator if needed, it is however recommended not to use a PIN since the bootscript doesn't support this feature atm.
//!
//! `--help` Will provide context dependant help for each command
use crate::error::*; use crate::error::*;
use crate::*; use crate::*;

View File

@@ -11,7 +11,7 @@ pub struct LuksDevice {
device: CryptDevice, device: CryptDevice,
luks2: Option<bool>, luks2: Option<bool>,
} }
/// Wrapper around [CryptDevice](libcryptsetup_rs::CryptDevice)
impl LuksDevice { impl LuksDevice {
pub fn load<P: AsRef<Path>>(path: P) -> Fido2LuksResult<LuksDevice> { pub fn load<P: AsRef<Path>>(path: P) -> Fido2LuksResult<LuksDevice> {
let mut device = CryptInit::init(path.as_ref())?; let mut device = CryptInit::init(path.as_ref())?;
@@ -22,7 +22,6 @@ impl LuksDevice {
}) })
} }
/// Check whether the device supports LUKS2
pub fn is_luks2(&mut self) -> Fido2LuksResult<bool> { pub fn is_luks2(&mut self) -> Fido2LuksResult<bool> {
if let Some(luks2) = self.luks2 { if let Some(luks2) = self.luks2 {
Ok(luks2) Ok(luks2)
@@ -35,7 +34,6 @@ impl LuksDevice {
} }
} }
/// Check whether the device supports LUKS2, return an appropriate error if it does not
fn require_luks2(&mut self) -> Fido2LuksResult<()> { fn require_luks2(&mut self) -> Fido2LuksResult<()> {
if !self.is_luks2()? { if !self.is_luks2()? {
return Err(LuksError::Luks2Required.into()); return Err(LuksError::Luks2Required.into());
@@ -43,7 +41,6 @@ impl LuksDevice {
Ok(()) Ok(())
} }
/// Returns an iterator over all tokens, of type fido2luks
pub fn tokens<'a>( pub fn tokens<'a>(
&'a mut self, &'a mut self,
) -> Fido2LuksResult<Box<dyn Iterator<Item = Fido2LuksResult<(u32, Fido2LuksToken)>> + 'a>> ) -> Fido2LuksResult<Box<dyn Iterator<Item = Fido2LuksResult<(u32, Fido2LuksToken)>> + 'a>>
@@ -87,7 +84,6 @@ impl LuksDevice {
)) ))
} }
/// Returns the first token with an reference to the specified keyslot
pub fn find_token(&mut self, slot: u32) -> Fido2LuksResult<Option<(u32, Fido2LuksToken)>> { pub fn find_token(&mut self, slot: u32) -> Fido2LuksResult<Option<(u32, Fido2LuksToken)>> {
let slot_str = slot.to_string(); let slot_str = slot.to_string();
for token in self.tokens()? { for token in self.tokens()? {
@@ -126,8 +122,6 @@ impl LuksDevice {
Ok(()) Ok(())
} }
/// Add a new key `secret` using `old_secret` with the specified `iteration_time` in milliseconds
/// an LUKS2 token will be created if the device supports LUKS2 and a `credential_id` is provided
pub fn add_key( pub fn add_key(
&mut self, &mut self,
secret: &[u8], secret: &[u8],
@@ -181,8 +175,6 @@ impl LuksDevice {
Ok(destroyed) Ok(destroyed)
} }
/// Replaces an existing key with `secret` using `old_secret` with the specified `iteration_time` in milliseconds
/// an LUKS2 token will be created or updated if the device supports LUKS2 and a `credential_id` is provided
pub fn replace_key( pub fn replace_key(
&mut self, &mut self,
secret: &[u8], secret: &[u8],
@@ -293,7 +285,6 @@ impl LuksDevice {
} }
} }
/// Represents a LUKS2 token
#[derive(Debug, Clone, Serialize, Deserialize)] #[derive(Debug, Clone, Serialize, Deserialize)]
pub struct Fido2LuksToken { pub struct Fido2LuksToken {
#[serde(rename = "type")] #[serde(rename = "type")]

View File

@@ -1,111 +1,3 @@
//! This will allow you to unlock your luks encrypted disk with an fido2 compatible key
//!
//! Note: This has only been tested under Fedora 31, [Ubuntu 20.04](initramfs-tools/), [NixOS](https://nixos.org/nixos/manual/#sec-luks-file-systems-fido2) using a Solo Key, Trezor Model T
//!
//! ## Setup
//!
//! ### Prerequisites
//!
//! ```
//! dnf install clang cargo cryptsetup-devel -y
//! ```
//!
//! ### Device
//!
//! ```
//! git clone https://github.com/shimunn/fido2luks.git && cd fido2luks
//!
//! # Alternativly cargo build --release && sudo cp target/release/fido2luks /usr/bin/
//! sudo -E cargo install -f --path . --root /usr
//!
//! # Copy template
//! cp dracut/96luks-2fa/fido2luks.conf /etc/
//! # Name is optional but useful if your authenticator has a display
//! echo FIDO2LUKS_CREDENTIAL_ID=$(fido2luks credential [NAME]) >> /etc/fido2luks.conf
//!
//! # Load config into env
//! set -a
//! . /etc/fido2luks.conf
//!
//! # Repeat for each luks volume
//! # You can also use the `--token` flag when using LUKS2 which will then store the credential in the LUKS header,
//! # enabling you to use `fido2luks open-token` without passing a credential as parameter
//! sudo -E fido2luks -i add-key /dev/disk/by-uuid/<DISK_UUID>
//!
//! # Test(only works if the luks container isn't active)
//! sudo -E fido2luks -i open /dev/disk/by-uuid/<DISK_UUID> luks-<DISK_UUID>
//!
//! ```
//!
//! ### Dracut
//!
//! ```
//! cd dracut
//!
//! sudo make install
//! ```
//!
//! ### Grub
//!
//! Add `rd.luks.2fa=<CREDENTIAL_ID>:<DISK_UUID>` to `GRUB_CMDLINE_LINUX` in /etc/default/grub
//!
//! Note: This is only required for your root disk, systemd will try to unlock all other LUKS partions using the same key if you added it using `fido2luks add-key`
//!
//! ```
//! grub2-mkconfig > /boot/grub2/grub.cfg
//! ```
//!
//! I'd also recommend to copy the executable onto /boot so that it is accessible in case you have to access your disk from a rescue system
//!
//! ```
//! mkdir /boot/fido2luks/
//! cp /usr/bin/fido2luks /boot/fido2luks/
//! cp /etc/fido2luks.conf /boot/fido2luks/
//! ```
//!
//! ## Test
//!
//! Just reboot and see if it works, if that's the case you should remove your old less secure password from your LUKS header:
//!
//! ```
//! # Recommend in case you lose your authenticator, store this backupfile somewhere safe
//! cryptsetup luksHeaderBackup /dev/disk/by-uuid/<DISK_UUID> --header-backup-file luks_backup_<DISK_UUID>
//! # There is no turning back if you mess this up, make sure you made a backup
//! # You can also pass `--token` if you're using LUKS2 which will then store the credential in the LUKS header,
//! # which will enable you to use `fido2luks open-token` without passing a credential as parameter
//! fido2luks -i add-key --exclusive /dev/disk/by-uuid/<DISK_UUID>
//! ```
//!
//! ## Addtional settings
//!
//! ### Password less
//!
//! Remove your previous secret as described in the next section, in case you've already added one.
//!
//! Open `/etc/fido2luks.conf` and replace `FIDO2LUKS_SALT=Ask` with `FIDO2LUKS_SALT=string:<YOUR_RANDOM_STRING>`
//! but be warned that this password will be included to into your initramfs.
//!
//! Import the new config into env:
//!
//! ```
//! set -a
//! . /etc/fido2luks.conf
//! ```
//!
//! Then add the new secret to each device and update dracut afterwards `dracut -f`
//!
//! ## Removal
//!
//! Remove `rd.luks.2fa` from `GRUB_CMDLINE_LINUX` in /etc/default/grub
//!
//! ```
//! set -a
//! . fido2luks.conf
//! sudo -E fido2luks -i replace-key /dev/disk/by-uuid/<DISK_UUID>
//!
//! sudo rm -rf /usr/lib/dracut/modules.d/96luks-2fa /etc/dracut.conf.d/luks-2fa.conf /etc/fido2luks.conf
//!```
#[macro_use] #[macro_use]
extern crate failure; extern crate failure;
extern crate ctap_hmac as ctap; extern crate ctap_hmac as ctap;