[pve-devel] [PATCH installer 6/6] tui: setup: handle missing disk block size gracefully

[Christoph Heiss <c.heiss@proxmox.com>]

As that value can indeed be undefined, handle that (edge-)case
gracefully. There is only one place where it is checked, in the ZFS RAID
setup dialog. Aligns it with how the low-level installer handles that
case too.

Signed-off-by: Christoph Heiss <c.heiss@proxmox.com>
---
 proxmox-tui-installer/src/options.rs        |  2 +-
 proxmox-tui-installer/src/setup.rs          |  3 ++-
 proxmox-tui-installer/src/views/bootdisk.rs | 16 ++++++++++++----
 3 files changed, 15 insertions(+), 6 deletions(-)

diff --git a/proxmox-tui-installer/src/options.rs b/proxmox-tui-installer/src/options.rs
index dab1730..f18c813 100644
--- a/proxmox-tui-installer/src/options.rs
+++ b/proxmox-tui-installer/src/options.rs
@@ -222,7 +222,7 @@ pub struct Disk {
     pub path: String,
     pub model: Option<String>,
     pub size: f64,
-    pub block_size: usize,
+    pub block_size: Option<usize>,
 }
 
 impl fmt::Display for Disk {
diff --git a/proxmox-tui-installer/src/setup.rs b/proxmox-tui-installer/src/setup.rs
index c071b80..dec91cb 100644
--- a/proxmox-tui-installer/src/setup.rs
+++ b/proxmox-tui-installer/src/setup.rs
@@ -277,7 +277,8 @@ fn deserialize_disks_map<'de, D>(deserializer: D) -> Result<Vec<Disk>, D::Error>
 where
     D: Deserializer<'de>,
 {
-    let disks = <Vec<(usize, String, f64, String, usize, String)>>::deserialize(deserializer)?;
+    let disks =
+        <Vec<(usize, String, f64, String, Option<usize>, String)>>::deserialize(deserializer)?;
     Ok(disks
         .into_iter()
         .map(
diff --git a/proxmox-tui-installer/src/views/bootdisk.rs b/proxmox-tui-installer/src/views/bootdisk.rs
index a018e71..d01495e 100644
--- a/proxmox-tui-installer/src/views/bootdisk.rs
+++ b/proxmox-tui-installer/src/views/bootdisk.rs
@@ -642,7 +642,9 @@ fn check_zfs_raid_config(
     // See also Proxmox/Install.pm:get_zfs_raid_setup()
 
     for disk in disks {
-        if runinfo.boot_type != BootType::Efi && disk.block_size == 4096 {
+        if runinfo.boot_type != BootType::Efi
+            && disk.block_size.map(|v| v == 4096).unwrap_or_default()
+        {
             return Err("Booting from 4Kn drive in legacy BIOS mode is not supported.".to_owned());
         }
     }
@@ -728,7 +730,7 @@ mod tests {
             path: format!("/dev/dummy{index}"),
             model: Some("Dummy disk".to_owned()),
             size: 1024. * 1024. * 1024. * 8.,
-            block_size: 512,
+            block_size: Some(512),
         }
     }
 
@@ -799,14 +801,20 @@ mod tests {
 
     #[test]
     fn zfs_raid_bios() {
-        let disks = dummy_disks(10);
         let runinfo = dummy_runinfo(BootType::Bios);
 
+        let mut disks = dummy_disks(10);
+        zfs_common_tests(&disks, &runinfo);
+
+        for disk in &mut disks {
+            disk.block_size = None;
+        }
+        // Should behave the same as if an explicit block size of 512 was set
         zfs_common_tests(&disks, &runinfo);
 
         for i in 0..10 {
             let mut disks = dummy_disks(10);
-            disks[i].block_size = 4096;
+            disks[i].block_size = Some(4096);
 
             // Must fail if /any/ of the disks are 4Kn
             assert!(check_zfs_raid_config(&runinfo, ZfsRaidLevel::Raid0, &disks).is_err());
-- 
2.41.0