[pbs-devel] [PATCH proxmox-backup v15 08/26] pbs-api-types: add mount_status field to DataStoreListItem

[Hannes Laimer <h.laimer@proxmox.com>]

Signed-off-by: Hannes Laimer <h.laimer@proxmox.com>
---
 pbs-api-types/src/datastore.rs | 19 ++++++++++++++++-
 src/api2/admin/datastore.rs    | 38 ++++++++++++++++++++--------------
 src/api2/status/mod.rs         | 30 +++++++++++++++++++++++----
 3 files changed, 66 insertions(+), 21 deletions(-)

diff --git a/pbs-api-types/src/datastore.rs b/pbs-api-types/src/datastore.rs
index 9bcec7191..4927f3724 100644
--- a/pbs-api-types/src/datastore.rs
+++ b/pbs-api-types/src/datastore.rs
@@ -178,6 +178,20 @@ pub enum ChunkOrder {
     Inode,
 }
 
+#[api]
+#[derive(Clone, Copy, Debug, Default, PartialEq, Eq, Serialize, Deserialize)]
+#[serde(rename_all = "lowercase")]
+/// Current mounting status of a datastore, useful for removable datastores.
+pub enum DataStoreMountStatus {
+    /// Removable datastore is currently mounted correctly.
+    Mounted,
+    /// Removable datastore is currebtly not mounted.
+    NotMounted,
+    /// Datastore is not removable, so there is no mount status.
+    #[default]
+    NonRemovable,
+}
+
 #[api]
 #[derive(Clone, Copy, Debug, Default, PartialEq, Eq, Serialize, Deserialize)]
 #[serde(rename_all = "lowercase")]
@@ -451,6 +465,7 @@ impl DataStoreConfig {
 pub struct DataStoreListItem {
     pub store: String,
     pub comment: Option<String>,
+    pub mount_status: DataStoreMountStatus,
     /// If the datastore is in maintenance mode, information about it
     #[serde(skip_serializing_if = "Option::is_none")]
     pub maintenance: Option<String>,
@@ -1456,6 +1471,7 @@ pub struct DataStoreStatusListItem {
     /// The available bytes of the underlying storage. (-1 on error)
     #[serde(skip_serializing_if = "Option::is_none")]
     pub avail: Option<u64>,
+    pub mount_status: DataStoreMountStatus,
     /// A list of usages of the past (last Month).
     #[serde(skip_serializing_if = "Option::is_none")]
     pub history: Option<Vec<Option<f64>>>,
@@ -1480,12 +1496,13 @@ pub struct DataStoreStatusListItem {
 }
 
 impl DataStoreStatusListItem {
-    pub fn empty(store: &str, err: Option<String>) -> Self {
+    pub fn empty(store: &str, err: Option<String>, mount_status: DataStoreMountStatus) -> Self {
         DataStoreStatusListItem {
             store: store.to_owned(),
             total: None,
             used: None,
             avail: None,
+            mount_status,
             history: None,
             history_start: None,
             history_delta: None,
diff --git a/src/api2/admin/datastore.rs b/src/api2/admin/datastore.rs
index 2f441b550..1c939bc20 100644
--- a/src/api2/admin/datastore.rs
+++ b/src/api2/admin/datastore.rs
@@ -38,14 +38,15 @@ use pxar::EntryKind;
 use pbs_api_types::{
     print_ns_and_snapshot, print_store_and_ns, ArchiveType, Authid, BackupArchiveName,
     BackupContent, BackupGroupDeleteStats, BackupNamespace, BackupType, Counts, CryptMode,
-    DataStoreConfig, DataStoreListItem, DataStoreStatus, GarbageCollectionJobStatus, GroupListItem,
-    JobScheduleStatus, KeepOptions, MaintenanceMode, MaintenanceType, Operation, PruneJobOptions,
-    SnapshotListItem, SnapshotVerifyState, BACKUP_ARCHIVE_NAME_SCHEMA, BACKUP_ID_SCHEMA,
-    BACKUP_NAMESPACE_SCHEMA, BACKUP_TIME_SCHEMA, BACKUP_TYPE_SCHEMA, CATALOG_NAME,
-    CLIENT_LOG_BLOB_NAME, DATASTORE_SCHEMA, IGNORE_VERIFIED_BACKUPS_SCHEMA, MANIFEST_BLOB_NAME,
-    MAX_NAMESPACE_DEPTH, NS_MAX_DEPTH_SCHEMA, PRIV_DATASTORE_AUDIT, PRIV_DATASTORE_BACKUP,
-    PRIV_DATASTORE_MODIFY, PRIV_DATASTORE_PRUNE, PRIV_DATASTORE_READ, PRIV_DATASTORE_VERIFY, UPID,
-    UPID_SCHEMA, VERIFICATION_OUTDATED_AFTER_SCHEMA,
+    DataStoreConfig, DataStoreListItem, DataStoreMountStatus, DataStoreStatus,
+    GarbageCollectionJobStatus, GroupListItem, JobScheduleStatus, KeepOptions, MaintenanceMode,
+    MaintenanceType, Operation, PruneJobOptions, SnapshotListItem, SnapshotVerifyState,
+    BACKUP_ARCHIVE_NAME_SCHEMA, BACKUP_ID_SCHEMA, BACKUP_NAMESPACE_SCHEMA, BACKUP_TIME_SCHEMA,
+    BACKUP_TYPE_SCHEMA, CATALOG_NAME, CLIENT_LOG_BLOB_NAME, DATASTORE_SCHEMA,
+    IGNORE_VERIFIED_BACKUPS_SCHEMA, MANIFEST_BLOB_NAME, MAX_NAMESPACE_DEPTH, NS_MAX_DEPTH_SCHEMA,
+    PRIV_DATASTORE_AUDIT, PRIV_DATASTORE_BACKUP, PRIV_DATASTORE_MODIFY, PRIV_DATASTORE_PRUNE,
+    PRIV_DATASTORE_READ, PRIV_DATASTORE_VERIFY, UPID, UPID_SCHEMA,
+    VERIFICATION_OUTDATED_AFTER_SCHEMA,
 };
 use pbs_client::pxar::{create_tar, create_zip};
 use pbs_config::CachedUserInfo;
@@ -1323,8 +1324,8 @@ pub fn get_datastore_list(
 
     let mut list = Vec::new();
 
-    for (store, (_, data)) in &config.sections {
-        let acl_path = &["datastore", store];
+    for (store, (_, data)) in config.sections {
+        let acl_path = &["datastore", &store];
         let user_privs = user_info.lookup_privs(&auth_id, acl_path);
         let allowed = (user_privs & (PRIV_DATASTORE_AUDIT | PRIV_DATASTORE_BACKUP)) != 0;
 
@@ -1335,15 +1336,20 @@ pub fn get_datastore_list(
             }
         }
 
+        let store_config: DataStoreConfig = serde_json::from_value(data)?;
+
+        let mount_status = match pbs_datastore::get_datastore_mount_status(&store_config) {
+            Some(true) => DataStoreMountStatus::Mounted,
+            Some(false) => DataStoreMountStatus::NotMounted,
+            None => DataStoreMountStatus::NonRemovable,
+        };
+
         if allowed || allow_id {
             list.push(DataStoreListItem {
                 store: store.clone(),
-                comment: if !allowed {
-                    None
-                } else {
-                    data["comment"].as_str().map(String::from)
-                },
-                maintenance: data["maintenance-mode"].as_str().map(String::from),
+                comment: store_config.comment.filter(|_| allowed),
+                mount_status,
+                maintenance: store_config.maintenance_mode,
             });
         }
     }
diff --git a/src/api2/status/mod.rs b/src/api2/status/mod.rs
index 113aa9852..5efde9c3d 100644
--- a/src/api2/status/mod.rs
+++ b/src/api2/status/mod.rs
@@ -10,11 +10,12 @@ use proxmox_schema::api;
 use proxmox_sortable_macro::sortable;
 
 use pbs_api_types::{
-    Authid, DataStoreStatusListItem, Operation, PRIV_DATASTORE_AUDIT, PRIV_DATASTORE_BACKUP,
+    Authid, DataStoreConfig, DataStoreMountStatus, DataStoreStatusListItem, Operation,
+    PRIV_DATASTORE_AUDIT, PRIV_DATASTORE_BACKUP,
 };
 
 use pbs_config::CachedUserInfo;
-use pbs_datastore::DataStore;
+use pbs_datastore::{get_datastore_mount_status, DataStore};
 
 use crate::server::metric_collection::rrd::extract_rrd_data;
 use crate::tools::statistics::linear_regression;
@@ -51,10 +52,26 @@ pub async fn datastore_status(
     for (store, (_, _)) in &config.sections {
         let user_privs = user_info.lookup_privs(&auth_id, &["datastore", store]);
         let allowed = (user_privs & (PRIV_DATASTORE_AUDIT | PRIV_DATASTORE_BACKUP)) != 0;
+
+        let store_config = config.lookup::<DataStoreConfig>("datastore", store)?;
+
+        let mount_status = match get_datastore_mount_status(&store_config) {
+            Some(true) => DataStoreMountStatus::Mounted,
+            Some(false) => {
+                list.push(DataStoreStatusListItem::empty(
+                    store,
+                    None,
+                    DataStoreMountStatus::NotMounted,
+                ));
+                continue;
+            }
+            None => DataStoreMountStatus::NonRemovable,
+        };
+
         if !allowed {
             if let Ok(datastore) = DataStore::lookup_datastore(store, Some(Operation::Lookup)) {
                 if can_access_any_namespace(datastore, &auth_id, &user_info) {
-                    list.push(DataStoreStatusListItem::empty(store, None));
+                    list.push(DataStoreStatusListItem::empty(store, None, mount_status));
                 }
             }
             continue;
@@ -63,7 +80,11 @@ pub async fn datastore_status(
         let datastore = match DataStore::lookup_datastore(store, Some(Operation::Read)) {
             Ok(datastore) => datastore,
             Err(err) => {
-                list.push(DataStoreStatusListItem::empty(store, Some(err.to_string())));
+                list.push(DataStoreStatusListItem::empty(
+                    store,
+                    Some(err.to_string()),
+                    mount_status,
+                ));
                 continue;
             }
         };
@@ -74,6 +95,7 @@ pub async fn datastore_status(
             total: Some(status.total),
             used: Some(status.used),
             avail: Some(status.available),
+            mount_status,
             history: None,
             history_start: None,
             history_delta: None,
-- 
2.39.5



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