vmario/fabaccess-bffh
1
0
Fork 0
mirror of https://gitlab.com/fabinfra/fabaccess/bffh.git synced 2024-12-22 11:43:49 +01:00
Code Issues Packages Projects Releases Wiki Activity

Merge branch 'feature/rsasl-update' into development

Browse Source 
* feature/rsasl-update:
  Update to latest rsasl
  Port rsasl
This commit is contained in:
Nadja Reitzenstein 2022-11-01 10:48:14 +01:00
commit 1971515601
10 changed files with 556 additions and 575 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

773
Cargo.lock generated
View File

File diff suppressed because it is too large Load Diff

12
Cargo.toml
View File

@ -84,7 +84,9 @@ capnp = "0.14"
capnp-rpc = "0.14.1"
# API Authentication
desfire = "0.2.0-alpha1"
#desfire = "0.2.0-alpha1"
desfire = { path = "../nfc_rs" }
hex = { version = "0.4.3", features = ["serde"] }
futures-signals = "0.3.22"
@ -112,10 +114,9 @@ rustls-native-certs = "0.6.1"
shadow-rs = "0.11"
[dependencies.rsasl]
git = "https://github.com/dequbed/rsasl.git"
rev = "0b5012d0"
version = "2.0.0-rc.3"
default_features = false
features = ["unstable_custom_mechanism", "provider", "registry_static", "plain"]
features = ["unstable_custom_mechanism", "provider", "registry_static", "config_builder", "plain"]
[dev-dependencies]
futures-test = "0.3.16"
@ -126,3 +127,6 @@ shadow-rs = "0.11"
[workspace]
members = ["runtime/*", "modules/*", "api"]
[patch.crates-io]
desfire = { path = "../nfc_rs" }

38
bffhd/authentication/fabfire/mod.rs
View File

@ -2,43 +2,23 @@ mod server;
pub use server::FabFire;
use rsasl::mechname::Mechname;
use rsasl::registry::{Mechanism, MECHANISMS};
use rsasl::session::Side;
use rsasl::registry::{Mechanism, MECHANISMS, Side};
const MECHNAME: &'static Mechname = &Mechname::const_new_unchecked(b"X-FABFIRE");
#[linkme::distributed_slice(MECHANISMS)]
pub static FABFIRE: Mechanism = Mechanism {
mechanism: MECHNAME,
priority: 300,
// In this situation there's one struct for both sides, however you can just as well use
// different types than then have different `impl Authentication` instead of checking a value
// in self.
client: None,
server: Some(FabFire::new_server),
first: Side::Client,
};
pub static FABFIRE: Mechanism =
Mechanism::build(MECHNAME, 300, None, Some(FabFire::new_server), Side::Client);
use rsasl::property::{Property, PropertyDefinition, PropertyQ};
use std::marker::PhantomData;
use rsasl::property::SizedProperty;
// All Property types must implement Debug.
#[derive(Debug)]
// The `PhantomData` in the constructor is only used so external crates can't construct this type.
pub struct FabFireCardKey(PhantomData<()>);
impl PropertyQ for FabFireCardKey {
// This is the type stored for this property. This could also be the struct itself if you
// so choose
type Item = [u8; 16];
// You need to return the constant you define below here for things to work properly
fn property() -> Property {
FABFIRECARDKEY
}
impl SizedProperty<'_> for FabFireCardKey {
type Value = [u8; 16];
const DESCRIPTION: &'static str = "A AES128 key for a FabFire card";
}
// This const is used by your mechanism to query and by your users to set your property. It
// thus needs to be exported from your crate
pub const FABFIRECARDKEY: Property = Property::new(&PropertyDefinition::new(
// Short name, used in `Debug` output
"FabFireCardKey",
// A longer user-facing name used in `Display` output
"A AES128 key for a FabFire card",
));

56
bffhd/authentication/fabfire/server.rs
View File

@ -2,11 +2,10 @@ use desfire::desfire::desfire::MAX_BYTES_PER_TRANSACTION;
use desfire::desfire::Desfire;
use desfire::error::Error as DesfireError;
use desfire::iso7816_4::apduresponse::APDUResponse;
use rsasl::error::{MechanismError, MechanismErrorKind, SASLError, SessionError};
use rsasl::mechanism::Authentication;
use rsasl::callback::SessionData;
use rsasl::mechanism::{Authentication, MechanismData, MechanismError, MechanismErrorKind, State, ThisProvider};
use rsasl::prelude::{MessageSent, SASLConfig, SASLError, SessionError};
use rsasl::property::AuthId;
use rsasl::session::{SessionData, StepResult};
use rsasl::SASL;
use serde::{Deserialize, Serialize};
use std::convert::TryFrom;
use std::fmt::{Debug, Display, Formatter};
@ -63,6 +62,10 @@ impl Display for FabFireError {
}
}
impl std::error::Error for FabFireError {
}
impl MechanismError for FabFireError {
fn kind(&self) -> MechanismErrorKind {
match self {
@ -154,7 +157,7 @@ pub struct FabFire {
const MAGIC: &'static str = "FABACCESS\0DESFIRE\01.0\0";
impl FabFire {
pub fn new_server(_sasl: &SASL) -> Result<Box<dyn Authentication>, SASLError> {
pub fn new_server(_sasl: &SASLConfig) -> Result<Box<dyn Authentication>, SASLError> {
Ok(Box::new(Self {
step: Step::New,
card_info: None,
@ -174,10 +177,10 @@ impl FabFire {
impl Authentication for FabFire {
fn step(
&mut self,
session: &mut SessionData,
session: &mut MechanismData<'_>,
input: Option<&[u8]>,
writer: &mut dyn Write,
) -> StepResult {
) -> Result<State, SessionError> {
match self.step {
Step::New => {
tracing::trace!("Step: New");
@ -216,7 +219,7 @@ impl Authentication for FabFire {
writer
.write_all(&send_buf)
.map_err(|e| SessionError::Io { source: e })?;
Ok(rsasl::session::Step::NeedsMore(Some(send_buf.len())))
Ok(State::Running)
}
Err(e) => {
tracing::error!("Failed to serialize APDUCommand: {:?}", e);
@ -282,7 +285,7 @@ impl Authentication for FabFire {
writer
.write_all(&send_buf)
.map_err(|e| SessionError::Io { source: e })?;
Ok(rsasl::session::Step::NeedsMore(Some(send_buf.len())))
Ok(State::Running)
}
Err(e) => {
tracing::error!("Failed to serialize APDUCommand: {:?}", e);
@ -365,7 +368,7 @@ impl Authentication for FabFire {
writer
.write_all(&send_buf)
.map_err(|e| SessionError::Io { source: e })?;
Ok(rsasl::session::Step::NeedsMore(Some(send_buf.len())))
Ok(State::Running)
}
Err(e) => {
tracing::error!("Failed to serialize APDUCommand: {:?}", e);
@ -452,7 +455,7 @@ impl Authentication for FabFire {
writer
.write_all(&send_buf)
.map_err(|e| SessionError::Io { source: e })?;
Ok(rsasl::session::Step::NeedsMore(Some(send_buf.len())))
Ok(State::Running)
}
Err(e) => {
tracing::error!("Failed to serialize APDUCommand: {:?}", e);
@ -491,24 +494,9 @@ impl Authentication for FabFire {
match apdu_response.body {
Some(data) => {
let token = String::from_utf8(data).unwrap();
session.set_property::<AuthId>(Arc::new(
token.trim_matches(char::from(0)).to_string(),
));
let key = match session.get_property_or_callback::<FabFireCardKey>()
{
Ok(Some(key)) => Box::from(key.as_slice()),
Ok(None) => {
tracing::error!("No keys on file for token");
return Err(FabFireError::InvalidCredentials(
"No keys on file for token".to_string(),
)
.into());
}
Err(e) => {
tracing::error!("Failed to get key: {:?}", e);
return Err(FabFireError::Session(e).into());
}
};
let prov =
ThisProvider::<AuthId>::with(token.trim_matches(char::from(0)));
let key = session.need_with::<FabFireCardKey, _, _>(&prov, |key| Ok(Box::from(key.as_slice())))?;
self.key_info = Some(KeyInfo { key_id: 0x01, key });
}
None => {
@ -546,7 +534,7 @@ impl Authentication for FabFire {
writer
.write_all(&send_buf)
.map_err(|e| SessionError::Io { source: e })?;
Ok(rsasl::session::Step::NeedsMore(Some(send_buf.len())))
Ok(State::Running)
}
Err(e) => {
tracing::error!("Failed to serialize command: {:?}", e);
@ -616,7 +604,7 @@ impl Authentication for FabFire {
writer
.write_all(&send_buf)
.map_err(|e| SessionError::Io { source: e })?;
Ok(rsasl::session::Step::NeedsMore(Some(send_buf.len())))
Ok(State::Running)
}
Err(e) => {
tracing::error!("Failed to serialize command: {:?}", e);
@ -691,9 +679,7 @@ impl Authentication for FabFire {
writer
.write_all(&send_buf)
.map_err(|e| SessionError::Io { source: e })?;
return Ok(rsasl::session::Step::Done(Some(
send_buf.len(),
)));
return Ok(State::Finished(MessageSent::Yes));
}
Err(e) => {
tracing::error!(
@ -722,6 +708,6 @@ impl Authentication for FabFire {
}
}
return Ok(rsasl::session::Step::Done(None));
return Ok(State::Finished(MessageSent::No));
}
}

151
bffhd/authentication/mod.rs
View File

@ -1,14 +1,14 @@
use crate::users::Users;
use miette::{Context, IntoDiagnostic};
use rsasl::error::SessionError;
use rsasl::mechname::Mechname;
use rsasl::property::{AuthId, Password};
use rsasl::session::{Session, SessionData};
use rsasl::validate::{validations, Validation};
use rsasl::{Property, SASL};
use miette::{IntoDiagnostic, WrapErr};
use std::sync::Arc;
use rsasl::callback::{CallbackError, Request, SessionCallback, SessionData, Context};
use rsasl::mechanism::SessionError;
use rsasl::prelude::{Mechname, SASLConfig, SASLServer, Session, Validation};
use rsasl::property::{AuthId, AuthzId, Password};
use rsasl::validate::{Validate, ValidationError};
use crate::authentication::fabfire::FabFireCardKey;
use crate::users::db::User;
mod fabfire;
@ -22,89 +22,78 @@ impl Callback {
Self { users, span }
}
}
impl rsasl::callback::Callback for Callback {
fn provide_prop(
&self,
session: &mut rsasl::session::SessionData,
property: Property,
) -> Result<(), SessionError> {
match property {
fabfire::FABFIRECARDKEY => {
let authcid = session.get_property_or_callback::<AuthId>()?;
let user = self
.users
.get_user(authcid.unwrap().as_ref())
.ok_or(SessionError::AuthenticationFailure)?;
let kv = user
.userdata
.kv
.get("cardkey")
.ok_or(SessionError::AuthenticationFailure)?;
impl SessionCallback for Callback {
fn callback(&self, session_data: &SessionData, context: &Context, request: &mut Request) -> Result<(), SessionError> {
if let Some(authid) = context.get_ref::<AuthId>() {
request.satisfy_with::<FabFireCardKey, _>(|| {
let user = self.users.get_user(authid).ok_or(CallbackError::NoValue)?;
let kv = user.userdata.kv.get("cardkey").ok_or(CallbackError::NoValue)?;
let card_key = <[u8; 16]>::try_from(
hex::decode(kv).map_err(|_| SessionError::AuthenticationFailure)?,
)
.map_err(|_| SessionError::AuthenticationFailure)?;
session.set_property::<FabFireCardKey>(Arc::new(card_key));
Ok(())
}
_ => Err(SessionError::NoProperty { property }),
hex::decode(kv).map_err(|_| CallbackError::NoValue)?,
).map_err(|_| CallbackError::NoValue)?;
Ok(card_key)
})?;
}
Ok(())
}
fn validate(
&self,
session: &mut SessionData,
validation: Validation,
_mechanism: &Mechname,
) -> Result<(), SessionError> {
fn validate(&self, session_data: &SessionData, context: &Context, validate: &mut Validate<'_>) -> Result<(), ValidationError> {
let span = tracing::info_span!(parent: &self.span, "validate");
let _guard = span.enter();
match validation {
validations::SIMPLE => {
let authnid = session
.get_property::<AuthId>()
.ok_or(SessionError::no_property::<AuthId>())?;
tracing::debug!(authid=%authnid, "SIMPLE validation requested");
if validate.is::<V>() {
match session_data.mechanism().mechanism.as_str() {
"PLAIN" => {
let authcid = context.get_ref::<AuthId>()
.ok_or(ValidationError::MissingRequiredProperty)?;
let authzid = context.get_ref::<AuthzId>();
let password = context.get_ref::<Password>()
.ok_or(ValidationError::MissingRequiredProperty)?;
if let Some(user) = self.users.get_user(authnid.as_str()) {
let passwd = session
.get_property::<Password>()
.ok_or(SessionError::no_property::<Password>())?;
if user
.check_password(passwd.as_bytes())
.map_err(|_e| SessionError::AuthenticationFailure)?
{
return Ok(());
} else {
tracing::warn!(authid=%authnid, "AUTH FAILED: bad password");
if authzid.is_some() {
return Ok(())
}
} else {
tracing::warn!(authid=%authnid, "AUTH FAILED: no such user '{}'", authnid);
}
Err(SessionError::AuthenticationFailure)
}
_ => {
tracing::error!(?validation, "Unimplemented validation requested");
Err(SessionError::no_validate(validation))
if let Some(user) = self.users.get_user(authcid) {
match user.check_password(password) {
Ok(true) => {
validate.finalize::<V>(user)
}
Ok(false) => {
tracing::warn!(authid=%authcid, "AUTH FAILED: bad password");
}
Err(error) => {
tracing::warn!(authid=%authcid, "Bad DB entry: {}", error);
}
}
} else {
tracing::warn!(authid=%authcid, "AUTH FAILED: no such user");
}
}
_ => {}
}
}
Ok(())
}
}
pub struct V;
impl Validation for V {
type Value = User;
}
#[derive(Clone)]
struct Inner {
rsasl: SASL,
rsasl: Arc<SASLConfig>,
}
impl Inner {
pub fn new(rsasl: SASL) -> Self {
pub fn new(rsasl: Arc<SASLConfig>) -> Self {
Self { rsasl }
}
}
#[derive(Clone)]
pub struct AuthenticationHandle {
inner: Arc<Inner>,
inner: Inner,
}
impl AuthenticationHandle {
@ -112,11 +101,13 @@ impl AuthenticationHandle {
let span = tracing::debug_span!("authentication");
let _guard = span.enter();
let mut rsasl = SASL::new();
rsasl.install_callback(Arc::new(Callback::new(userdb)));
let config = SASLConfig::builder()
.with_defaults()
.with_callback(Callback::new(userdb))
.unwrap();
let mechs: Vec<&'static str> = rsasl
.server_mech_list()
let mechs: Vec<&'static str> = SASLServer::<V>::new(config.clone())
.get_available()
.into_iter()
.map(|m| m.mechanism.as_str())
.collect();
@ -124,24 +115,18 @@ impl AuthenticationHandle {
tracing::debug!(?mechs, "available mechs");
Self {
inner: Arc::new(Inner::new(rsasl)),
inner: Inner::new(config),
}
}
pub fn start(&self, mechanism: &Mechname) -> miette::Result<Session> {
Ok(self
.inner
.rsasl
.server_start(mechanism)
pub fn start(&self, mechanism: &Mechname) -> miette::Result<Session<V>> {
Ok(SASLServer::new(self.inner.rsasl.clone())
.start_suggested(mechanism)
.into_diagnostic()
.wrap_err("Failed to start a SASL authentication with the given mechanism")?)
}
pub fn list_available_mechs(&self) -> impl IntoIterator<Item = &Mechname> {
self.inner
.rsasl
.server_mech_list()
.into_iter()
.map(|m| m.mechanism)
pub fn sess(&self) -> SASLServer<V> {
SASLServer::new(self.inner.rsasl.clone())
}
}

51
bffhd/capnp/authenticationsystem.rs
View File

@ -3,10 +3,11 @@ use capnp::Error;
use capnp_rpc::pry;
use rsasl::mechname::Mechname;
use rsasl::property::AuthId;
use rsasl::session::{Session, Step};
use std::fmt;
use std::fmt::{Formatter, Write};
use std::io::Cursor;
use rsasl::prelude::{MessageSent, Session};
use rsasl::prelude::State as SaslState;
use tracing::Span;
use crate::capnp::session::APISession;
@ -15,6 +16,7 @@ use api::authenticationsystem_capnp::authentication::{
AbortParams, AbortResults, Server as AuthenticationSystem, StepParams, StepResults,
};
use api::authenticationsystem_capnp::{response, response::Error as ErrorCode};
use crate::authentication::V;
const TARGET: &str = "bffh::api::authenticationsystem";
@ -27,7 +29,7 @@ impl Authentication {
pub fn new(
parent: &Span,
mechanism: &Mechname, /* TODO: this is stored in session as well, get it out of there. */
session: Session,
session: Session<V>,
sessionmanager: SessionManager,
) -> Self {
let span = tracing::info_span!(
@ -92,7 +94,7 @@ enum State {
InvalidMechanism,
Finished,
Aborted,
Running(Session, SessionManager),
Running(Session<V>, SessionManager),
}
impl AuthenticationSystem for Authentication {
@ -121,36 +123,35 @@ impl AuthenticationSystem for Authentication {
{
let data: &[u8] = pry!(pry!(params.get()).get_data());
let mut out = Cursor::new(Vec::new());
let mut out = Vec::new();
match session.step(Some(data), &mut out) {
Ok(Step::Done(data)) => {
Ok(SaslState::Finished(sent)) => {
self.state = State::Finished;
let uid = pry!(session.get_property::<AuthId>().ok_or_else(|| {
tracing::warn!("Authentication didn't provide an authid as required.");
capnp::Error::failed(
"Authentication didn't provide an authid as required".to_string(),
)
}));
let session = pry!(manager.open(&self.span, uid.as_ref()).ok_or_else(|| {
tracing::warn!(uid = uid.as_str(), "Failed to lookup the given user");
capnp::Error::failed("Failed to lookup the given user".to_string())
}));
if let Some(user) = session.validation() {
let session = manager.open(&self.span, user);
response = Response {
union_field: "successful",
};
response = Response {
union_field: "successful",
};
let mut builder = builder.init_successful();
if sent == MessageSent::Yes {
builder.set_additional_data(out.as_slice());
}
let mut builder = builder.init_successful();
if data.is_some() {
builder.set_additional_data(out.into_inner().as_slice());
APISession::build(session, builder)
} else {
let mut builder = builder.init_failed();
builder.set_code(ErrorCode::InvalidCredentials);
response = Response {
union_field: "error",
};
}
APISession::build(session, builder)
}
Ok(Step::NeedsMore(_)) => {
Ok(SaslState::Running) => {
self.state = State::Running(session, manager);
builder.set_challenge(out.into_inner().as_slice());
builder.set_challenge(out.as_slice());
response = Response {
union_field: "challenge",

7
bffhd/capnp/connection.rs
View File

@ -95,9 +95,10 @@ impl bootstrap::Server for BootCap {
let builder = result.get();
let mechs: Vec<_> = self
.authentication
.list_available_mechs()
.sess()
.get_available()
.into_iter()
.map(|m| m.as_str())
.map(|m| m.mechanism.as_str())
.collect();
let mut mechbuilder = builder.init_mechs(mechs.len() as u32);
for (i, m) in mechs.iter().enumerate() {
@ -146,7 +147,7 @@ impl bootstrap::Server for BootCap {
tracing::trace!(params.mechanism = mechanism, "method call");
let mechname = Mechname::new(mechanism.as_bytes());
let mechname = Mechname::parse(mechanism.as_bytes());
let auth = if let Ok(mechname) = mechname {
if let Ok(session) = self.authentication.start(mechname) {
Authentication::new(&self.span, mechname, session, self.sessionmanager.clone())

2
bffhd/initiators/mod.rs
View File

@ -56,7 +56,7 @@ impl InitiatorCallbacks {
}
pub fn open_session(&self, uid: &str) -> Option<SessionHandle> {
self.sessions.open(&self.span, uid)
self.sessions.try_open(&self.span, uid)
}
}

37
bffhd/session/mod.rs
View File

@ -4,6 +4,7 @@ use crate::resources::Resource;
use crate::users::{db, UserRef};
use crate::Users;
use tracing::Span;
use crate::users::db::User;
#[derive(Clone)]
pub struct SessionManager {
@ -16,25 +17,25 @@ impl SessionManager {
Self { users, roles }
}
pub fn try_open(&self, parent: &Span, uid: impl AsRef<str>) -> Option<SessionHandle> {
self.users.get_user(uid.as_ref()).map(|user| self.open(parent, user))
}
// TODO: make infallible
pub fn open(&self, parent: &Span, uid: impl AsRef<str>) -> Option<SessionHandle> {
let uid = uid.as_ref();
if let Some(user) = self.users.get_user(uid) {
let span = tracing::info_span!(
target: "bffh::api",
parent: parent,
"session",
uid = uid,
);
tracing::trace!(parent: &span, uid, ?user, "opening session");
Some(SessionHandle {
span,
users: self.users.clone(),
roles: self.roles.clone(),
user: UserRef::new(user.id),
})
} else {
None
pub fn open(&self, parent: &Span, user: User) -> SessionHandle {
let uid = user.id.as_str();
let span = tracing::info_span!(
target: "bffh::api",
parent: parent,
"session",
uid,
);
tracing::trace!(parent: &span, uid, ?user, "opening session");
SessionHandle {
span,
users: self.users.clone(),
roles: self.roles.clone(),
user: UserRef::new(user.id),
}
}
}

4
bffhd/users/db.rs
View File

@ -34,11 +34,9 @@ fn hash_pw(pw: &[u8]) -> argon2::Result<String> {
}
impl User {
pub fn check_password(&self, pwd: &[u8]) -> miette::Result<bool> {
pub fn check_password(&self, pwd: &[u8]) -> Result<bool, argon2::Error> {
if let Some(ref encoded) = self.userdata.passwd {
argon2::verify_encoded(encoded, pwd)
.into_diagnostic()
.wrap_err("Stored password is an invalid string")
} else {
Ok(false)
}