WIP: meta-lxatac-software: tacd{,-webinterface}: add rauc-polling support

RAUC has recently learned to perform update polling on its own.
This means we can remove the update polling support from tacd and use the
one provided by RAUC instead.

Signed-off-by: Leonard Göhrs <[email protected]>

Author: hnez

meta-lxatac-software/recipes-rust/tacd/files/0001-tacd-dbus-rauc-re-introspect-services.patch

@@ -0,0 +1,82 @@
+From ac2e0c416223552d9a604bab7e33e514e1d518bd Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Leonard=20G=C3=B6hrs?= <[email protected]>
+Date: Thu, 27 Mar 2025 08:59:42 +0100
+Subject: [PATCH 01/17] tacd: dbus: rauc: re-introspect services
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+RAUC is in the process of adding native update polling support.
+Re-introspect the dbus service to add the new APIs.
+
+Signed-off-by: Leonard Göhrs <[email protected]>
+---
+ src/dbus/rauc.rs           |  3 +++
+ src/dbus/rauc/installer.rs |  5 +++++
+ src/dbus/rauc/poller.rs    | 24 ++++++++++++++++++++++++
+ 3 files changed, 32 insertions(+)
+ create mode 100644 src/dbus/rauc/poller.rs
+
+diff --git a/src/dbus/rauc.rs b/src/dbus/rauc.rs
+index 415f771..6d69084 100644
+--- a/src/dbus/rauc.rs
++++ b/src/dbus/rauc.rs
+@@ -43,6 +43,9 @@ mod installer;
+ #[cfg(not(feature = "demo_mode"))]
+ use installer::InstallerProxy;
+ 
++#[cfg(not(feature = "demo_mode"))]
++mod poller;
++
+ #[cfg(feature = "demo_mode")]
+ mod imports {
+     use std::collections::HashMap;
+diff --git a/src/dbus/rauc/installer.rs b/src/dbus/rauc/installer.rs
+index d8c1836..f030161 100644
+--- a/src/dbus/rauc/installer.rs
++++ b/src/dbus/rauc/installer.rs
+@@ -10,6 +10,11 @@ use zbus::proxy;
+     default_path = "/"
+ )]
+ trait Installer {
++    /// GetArtifactStatus method
++    fn get_artifact_status(
++        &self,
++    ) -> zbus::Result<Vec<std::collections::HashMap<String, zbus::zvariant::OwnedValue>>>;
++
+     /// GetPrimary method
+     fn get_primary(&self) -> zbus::Result<String>;
+ 
+diff --git a/src/dbus/rauc/poller.rs b/src/dbus/rauc/poller.rs
+new file mode 100644
+index 0000000..70fdb3b
+--- /dev/null
++++ b/src/dbus/rauc/poller.rs
+@@ -0,0 +1,24 @@
++//! This code was generated by `zbus-xmlgen` `4.1.0` from DBus introspection data.
++//!
++//! By running `zbus-xmlgen system de.pengutronix.rauc /` on the LXA TAC.
++
++use zbus::proxy;
++
++#[proxy(
++    interface = "de.pengutronix.rauc.Poller",
++    default_service = "de.pengutronix.rauc",
++    default_path = "/"
++)]
++trait Poller {
++    /// Poll method
++    fn poll(&self) -> zbus::Result<()>;
++
++    /// NextPoll property
++    #[zbus(property)]
++    fn next_poll(&self) -> zbus::Result<i64>;
++
++    /// Status property
++    #[zbus(property)]
++    fn status(&self)
++        -> zbus::Result<std::collections::HashMap<String, zbus::zvariant::OwnedValue>>;
++}
+-- 
+2.39.5
+

meta-lxatac-software/recipes-rust/tacd/files/0002-dbus-systemd-also-monitor-rauc.service.patch

@@ -0,0 +1,78 @@
+From 77aafa2af22bb812df0effec2d3a37f808af21ac Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Leonard=20G=C3=B6hrs?= <[email protected]>
+Date: Wed, 2 Apr 2025 14:45:10 +0200
+Subject: [PATCH 02/17] dbus: systemd: also monitor rauc.service
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+This exposes the status of the RAUC daemon to users inside and outside of
+the tacd. As of now neither of them exist, but in the next few commits
+support for re-starting the RAUC deamon to reload its configuration will
+be added.
+
+Signed-off-by: Leonard Göhrs <[email protected]>
+---
+ openapi.yaml        | 2 ++
+ src/dbus/systemd.rs | 5 +++++
+ 2 files changed, 7 insertions(+)
+
+diff --git a/openapi.yaml b/openapi.yaml
+index 7451efc..46589cc 100644
+--- a/openapi.yaml
++++ b/openapi.yaml
+@@ -697,6 +697,7 @@ paths:
+             - network-manager
+             - labgrid-exporter
+             - lxa-iobus
++            - rauc
+     put:
+       summary: Perform an action on a systemd service
+       tags: [System]
+@@ -722,6 +723,7 @@ paths:
+             - network-manager
+             - labgrid-exporter
+             - lxa-iobus
++            - rauc
+     get:
+       summary: Get the status of a systemd service
+       tags: [System]
+diff --git a/src/dbus/systemd.rs b/src/dbus/systemd.rs
+index e06f2dd..ff78eb3 100644
+--- a/src/dbus/systemd.rs
++++ b/src/dbus/systemd.rs
+@@ -66,6 +66,8 @@ pub struct Systemd {
+     pub labgrid: Service,
+     #[allow(dead_code)]
+     pub iobus: Service,
++    #[allow(dead_code)]
++    pub rauc: Service,
+ }
+ 
+ impl ServiceStatus {
+@@ -238,6 +240,7 @@ impl Systemd {
+         let networkmanager = Service::new(bb, "network-manager");
+         let labgrid = Service::new(bb, "labgrid-exporter");
+         let iobus = Service::new(bb, "lxa-iobus");
++        let rauc = Service::new(bb, "rauc");
+ 
+         networkmanager
+             .connect(wtb, conn.clone(), "NetworkManager.service")
+@@ -248,12 +251,14 @@ impl Systemd {
+         iobus
+             .connect(wtb, conn.clone(), "lxa-iobus.service")
+             .await?;
++        rauc.connect(wtb, conn.clone(), "rauc.service").await?;
+ 
+         Ok(Self {
+             reboot,
+             networkmanager,
+             labgrid,
+             iobus,
++            rauc,
+         })
+     }
+ }
+-- 
+2.39.5
+