]> git.proxmox.com Git - proxmox-backup.git/blobdiff - src/api2/admin/datastore.rs
tokio 1.0: use ReceiverStream from tokio-stream
[proxmox-backup.git] / src / api2 / admin / datastore.rs
index a0a14a2f5c1ae313abec77b3ba502a86ac04fdff..5b9a1e8440dd1577eb3b700b657aade7adbf3b92 100644 (file)
@@ -1,24 +1,27 @@
-use std::collections::{HashSet, HashMap};
+use std::collections::HashSet;
 use std::ffi::OsStr;
 use std::os::unix::ffi::OsStrExt;
+use std::sync::{Arc, Mutex};
+use std::path::{Path, PathBuf};
+use std::pin::Pin;
 
 use anyhow::{bail, format_err, Error};
 use futures::*;
 use hyper::http::request::Parts;
 use hyper::{header, Body, Response, StatusCode};
 use serde_json::{json, Value};
+use tokio_stream::wrappers::ReceiverStream;
 
 use proxmox::api::{
     api, ApiResponseFuture, ApiHandler, ApiMethod, Router,
     RpcEnvironment, RpcEnvironmentType, Permission
 };
-use proxmox::api::router::SubdirMap;
+use proxmox::api::router::{ReturnType, SubdirMap};
 use proxmox::api::schema::*;
 use proxmox::tools::fs::{replace_file, CreateOptions};
-use proxmox::try_block;
 use proxmox::{http_err, identity, list_subdirs_api_method, sortable};
 
-use pxar::accessor::aio::Accessor;
+use pxar::accessor::aio::{Accessor, FileContents, FileEntry};
 use pxar::EntryKind;
 
 use crate::api2::types::*;
@@ -27,24 +30,46 @@ use crate::backup::*;
 use crate::config::datastore;
 use crate::config::cached_user_info::CachedUserInfo;
 
-use crate::server::WorkerTask;
-use crate::tools::{self, AsyncReaderStream, WrappedReaderStream};
+use crate::server::{jobstate::Job, WorkerTask};
+use crate::tools::{
+    self,
+    zip::{ZipEncoder, ZipEntry},
+    AsyncChannelWriter, AsyncReaderStream, WrappedReaderStream,
+};
+
 use crate::config::acl::{
     PRIV_DATASTORE_AUDIT,
     PRIV_DATASTORE_MODIFY,
     PRIV_DATASTORE_READ,
     PRIV_DATASTORE_PRUNE,
     PRIV_DATASTORE_BACKUP,
+    PRIV_DATASTORE_VERIFY,
 };
 
-fn check_backup_owner(
+fn check_priv_or_backup_owner(
     store: &DataStore,
     group: &BackupGroup,
-    userid: &Userid,
+    auth_id: &Authid,
+    required_privs: u64,
 ) -> Result<(), Error> {
-    let owner = store.get_owner(group)?;
-    if &owner != userid {
-        bail!("backup owner check failed ({} != {})", userid, owner);
+    let user_info = CachedUserInfo::new()?;
+    let privs = user_info.lookup_privs(&auth_id, &["datastore", store.name()]);
+
+    if privs & required_privs == 0 {
+        let owner = store.get_owner(group)?;
+        check_backup_owner(&owner, auth_id)?;
+    }
+    Ok(())
+}
+
+fn check_backup_owner(
+    owner: &Authid,
+    auth_id: &Authid,
+) -> Result<(), Error> {
+    let correct_owner = owner == auth_id
+        || (owner.is_token() && &Authid::from(owner.user().clone()) == auth_id);
+    if !correct_owner {
+        bail!("backup owner check failed ({} != {})", auth_id, owner);
     }
     Ok(())
 }
@@ -67,7 +92,10 @@ fn read_backup_index(
 
     result.push(BackupContent {
         filename: MANIFEST_BLOB_NAME.to_string(),
-        crypt_mode: Some(CryptMode::None),
+        crypt_mode: match manifest.signature {
+            Some(_) => Some(CryptMode::SignOnly),
+            None => Some(CryptMode::None),
+        },
         size: Some(index_size),
     });
 
@@ -98,19 +126,6 @@ fn get_all_snapshot_files(
     Ok((manifest, files))
 }
 
-fn group_backups(backup_list: Vec<BackupInfo>) -> HashMap<String, Vec<BackupInfo>> {
-
-    let mut group_hash = HashMap::new();
-
-    for info in backup_list {
-        let group_id = info.backup_dir.group().group_path().to_str().unwrap().to_owned();
-        let time_list = group_hash.entry(group_id).or_insert(vec![]);
-        time_list.push(info);
-    }
-
-    group_hash
-}
-
 #[api(
     input: {
         properties: {
@@ -134,49 +149,74 @@ fn group_backups(backup_list: Vec<BackupInfo>) -> HashMap<String, Vec<BackupInfo
     },
 )]
 /// List backup groups.
-fn list_groups(
+pub fn list_groups(
     store: String,
     rpcenv: &mut dyn RpcEnvironment,
 ) -> Result<Vec<GroupListItem>, Error> {
 
-    let userid: Userid = rpcenv.get_user().unwrap().parse()?;
+    let auth_id: Authid = rpcenv.get_auth_id().unwrap().parse()?;
     let user_info = CachedUserInfo::new()?;
-    let user_privs = user_info.lookup_privs(&userid, &["datastore", &store]);
+    let user_privs = user_info.lookup_privs(&auth_id, &["datastore", &store]);
 
     let datastore = DataStore::lookup_datastore(&store)?;
+    let list_all = (user_privs & PRIV_DATASTORE_AUDIT) != 0;
+
+    let backup_groups = BackupInfo::list_backup_groups(&datastore.base_path())?;
+
+    let group_info = backup_groups
+        .into_iter()
+        .fold(Vec::new(), |mut group_info, group| {
+            let owner = match datastore.get_owner(&group) {
+                Ok(auth_id) => auth_id,
+                Err(err) => {
+                    eprintln!("Failed to get owner of group '{}/{}' - {}",
+                             &store,
+                             group,
+                             err);
+                    return group_info;
+                },
+            };
+            if !list_all && check_backup_owner(&owner, &auth_id).is_err() {
+                return group_info;
+            }
 
-    let backup_list = BackupInfo::list_backups(&datastore.base_path())?;
-
-    let group_hash = group_backups(backup_list);
-
-    let mut groups = Vec::new();
-
-    for (_group_id, mut list) in group_hash {
-
-        BackupInfo::sort_list(&mut list, false);
-
-        let info = &list[0];
+            let snapshots = match group.list_backups(&datastore.base_path()) {
+                Ok(snapshots) => snapshots,
+                Err(_) => {
+                    return group_info;
+                },
+            };
 
-        let group = info.backup_dir.group();
+            let backup_count: u64 = snapshots.len() as u64;
+            if backup_count == 0 {
+                return group_info;
+            }
 
-        let list_all = (user_privs & PRIV_DATASTORE_AUDIT) != 0;
-        let owner = datastore.get_owner(group)?;
-        if !list_all {
-            if owner != userid { continue; }
-        }
+            let last_backup = snapshots
+                .iter()
+                .fold(&snapshots[0], |last, curr| {
+                    if curr.is_finished()
+                        && curr.backup_dir.backup_time() > last.backup_dir.backup_time() {
+                        curr
+                    } else {
+                        last
+                    }
+                })
+                .to_owned();
+
+            group_info.push(GroupListItem {
+                backup_type: group.backup_type().to_string(),
+                backup_id: group.backup_id().to_string(),
+                last_backup: last_backup.backup_dir.backup_time(),
+                owner: Some(owner),
+                backup_count,
+                files: last_backup.files,
+            });
 
-        let result_item = GroupListItem {
-            backup_type: group.backup_type().to_string(),
-            backup_id: group.backup_id().to_string(),
-            last_backup: info.backup_dir.backup_time().timestamp(),
-            backup_count: list.len() as u64,
-            files: info.files.clone(),
-            owner: Some(owner),
-        };
-        groups.push(result_item);
-    }
+            group_info
+        });
 
-    Ok(groups)
+    Ok(group_info)
 }
 
 #[api(
@@ -220,16 +260,12 @@ pub fn list_snapshot_files(
     rpcenv: &mut dyn RpcEnvironment,
 ) -> Result<Vec<BackupContent>, Error> {
 
-    let userid: Userid = rpcenv.get_user().unwrap().parse()?;
-    let user_info = CachedUserInfo::new()?;
-    let user_privs = user_info.lookup_privs(&userid, &["datastore", &store]);
-
+    let auth_id: Authid = rpcenv.get_auth_id().unwrap().parse()?;
     let datastore = DataStore::lookup_datastore(&store)?;
 
-    let snapshot = BackupDir::new(backup_type, backup_id, backup_time);
+    let snapshot = BackupDir::new(backup_type, backup_id, backup_time)?;
 
-    let allowed = (user_privs & (PRIV_DATASTORE_AUDIT | PRIV_DATASTORE_READ)) != 0;
-    if !allowed { check_backup_owner(&datastore, snapshot.group(), &userid)?; }
+    check_priv_or_backup_owner(&datastore, snapshot.group(), &auth_id, PRIV_DATASTORE_AUDIT | PRIV_DATASTORE_READ)?;
 
     let info = BackupInfo::new(&datastore.base_path(), snapshot)?;
 
@@ -272,16 +308,12 @@ fn delete_snapshot(
     rpcenv: &mut dyn RpcEnvironment,
 ) -> Result<Value, Error> {
 
-    let userid: Userid = rpcenv.get_user().unwrap().parse()?;
-    let user_info = CachedUserInfo::new()?;
-    let user_privs = user_info.lookup_privs(&userid, &["datastore", &store]);
-
-    let snapshot = BackupDir::new(backup_type, backup_id, backup_time);
+    let auth_id: Authid = rpcenv.get_auth_id().unwrap().parse()?;
 
+    let snapshot = BackupDir::new(backup_type, backup_id, backup_time)?;
     let datastore = DataStore::lookup_datastore(&store)?;
 
-    let allowed = (user_privs & PRIV_DATASTORE_MODIFY) != 0;
-    if !allowed { check_backup_owner(&datastore, snapshot.group(), &userid)?; }
+    check_priv_or_backup_owner(&datastore, snapshot.group(), &auth_id, PRIV_DATASTORE_MODIFY)?;
 
     datastore.remove_backup_dir(&snapshot, false)?;
 
@@ -328,78 +360,175 @@ pub fn list_snapshots (
     rpcenv: &mut dyn RpcEnvironment,
 ) -> Result<Vec<SnapshotListItem>, Error> {
 
-    let userid: Userid = rpcenv.get_user().unwrap().parse()?;
+    let auth_id: Authid = rpcenv.get_auth_id().unwrap().parse()?;
     let user_info = CachedUserInfo::new()?;
-    let user_privs = user_info.lookup_privs(&userid, &["datastore", &store]);
+    let user_privs = user_info.lookup_privs(&auth_id, &["datastore", &store]);
+
+    let list_all = (user_privs & PRIV_DATASTORE_AUDIT) != 0;
 
     let datastore = DataStore::lookup_datastore(&store)?;
 
     let base_path = datastore.base_path();
 
-    let backup_list = BackupInfo::list_backups(&base_path)?;
-
-    let mut snapshots = vec![];
-
-    for info in backup_list {
-        let group = info.backup_dir.group();
-        if let Some(ref backup_type) = backup_type {
-            if backup_type != group.backup_type() { continue; }
-        }
-        if let Some(ref backup_id) = backup_id {
-            if backup_id != group.backup_id() { continue; }
-        }
-
-        let list_all = (user_privs & PRIV_DATASTORE_AUDIT) != 0;
-        let owner = datastore.get_owner(group)?;
-
-        if !list_all {
-            if owner != userid { continue; }
-        }
+    let groups = match (backup_type, backup_id) {
+        (Some(backup_type), Some(backup_id)) => {
+            let mut groups = Vec::with_capacity(1);
+            groups.push(BackupGroup::new(backup_type, backup_id));
+            groups
+        },
+        (Some(backup_type), None) => {
+            BackupInfo::list_backup_groups(&base_path)?
+                .into_iter()
+                .filter(|group| group.backup_type() == backup_type)
+                .collect()
+        },
+        (None, Some(backup_id)) => {
+            BackupInfo::list_backup_groups(&base_path)?
+                .into_iter()
+                .filter(|group| group.backup_id() == backup_id)
+                .collect()
+        },
+        _ => BackupInfo::list_backup_groups(&base_path)?,
+    };
 
-        let mut size = None;
+    let info_to_snapshot_list_item = |group: &BackupGroup, owner, info: BackupInfo| {
+        let backup_type = group.backup_type().to_string();
+        let backup_id = group.backup_id().to_string();
+        let backup_time = info.backup_dir.backup_time();
 
-        let (comment, files) = match get_all_snapshot_files(&datastore, &info) {
+        match get_all_snapshot_files(&datastore, &info) {
             Ok((manifest, files)) => {
-                size = Some(files.iter().map(|x| x.size.unwrap_or(0)).sum());
                 // extract the first line from notes
                 let comment: Option<String> = manifest.unprotected["notes"]
                     .as_str()
                     .and_then(|notes| notes.lines().next())
                     .map(String::from);
 
-                (comment, files)
+                let fingerprint = match manifest.fingerprint() {
+                    Ok(fp) => fp,
+                    Err(err) => {
+                        eprintln!("error parsing fingerprint: '{}'", err);
+                        None
+                    },
+                };
+
+                let verification = manifest.unprotected["verify_state"].clone();
+                let verification: Option<SnapshotVerifyState> = match serde_json::from_value(verification) {
+                    Ok(verify) => verify,
+                    Err(err) => {
+                        eprintln!("error parsing verification state : '{}'", err);
+                        None
+                    }
+                };
+
+                let size = Some(files.iter().map(|x| x.size.unwrap_or(0)).sum());
+
+                SnapshotListItem {
+                    backup_type,
+                    backup_id,
+                    backup_time,
+                    comment,
+                    verification,
+                    fingerprint,
+                    files,
+                    size,
+                    owner,
+                }
             },
             Err(err) => {
                 eprintln!("error during snapshot file listing: '{}'", err);
-                (
-                    None,
-                    info
+                let files = info
                         .files
-                        .iter()
+                        .into_iter()
                         .map(|x| BackupContent {
                             filename: x.to_string(),
                             size: None,
                             crypt_mode: None,
                         })
-                        .collect()
-                )
+                        .collect();
+
+                SnapshotListItem {
+                    backup_type,
+                    backup_id,
+                    backup_time,
+                    comment: None,
+                    verification: None,
+                    fingerprint: None,
+                    files,
+                    size: None,
+                    owner,
+                }
             },
-        };
+        }
+    };
 
-        let result_item = SnapshotListItem {
-            backup_type: group.backup_type().to_string(),
-            backup_id: group.backup_id().to_string(),
-            backup_time: info.backup_dir.backup_time().timestamp(),
-            comment,
-            files,
-            size,
-            owner: Some(owner),
-        };
+    groups
+        .iter()
+        .try_fold(Vec::new(), |mut snapshots, group| {
+            let owner = match datastore.get_owner(group) {
+                Ok(auth_id) => auth_id,
+                Err(err) => {
+                    eprintln!("Failed to get owner of group '{}/{}' - {}",
+                              &store,
+                              group,
+                              err);
+                    return Ok(snapshots);
+                },
+            };
 
-        snapshots.push(result_item);
-    }
+            if !list_all && check_backup_owner(&owner, &auth_id).is_err() {
+                return Ok(snapshots);
+            }
+
+            let group_backups = group.list_backups(&datastore.base_path())?;
+
+            snapshots.extend(
+                group_backups
+                    .into_iter()
+                    .map(|info| info_to_snapshot_list_item(&group, Some(owner.clone()), info))
+            );
+
+            Ok(snapshots)
+        })
+}
+
+fn get_snapshots_count(store: &DataStore, filter_owner: Option<&Authid>) -> Result<Counts, Error> {
+    let base_path = store.base_path();
+    let groups = BackupInfo::list_backup_groups(&base_path)?;
+
+    groups.iter()
+        .filter(|group| {
+            let owner = match store.get_owner(&group) {
+                Ok(owner) => owner,
+                Err(err) => {
+                    eprintln!("Failed to get owner of group '{}/{}' - {}",
+                              store.name(),
+                              group,
+                              err);
+                    return false;
+                },
+            };
+
+            match filter_owner {
+                Some(filter) => check_backup_owner(&owner, filter).is_ok(),
+                None => true,
+            }
+        })
+        .try_fold(Counts::default(), |mut counts, group| {
+            let snapshot_count = group.list_backups(&base_path)?.len() as u64;
+
+            let type_count = match group.backup_type() {
+                "ct" => counts.ct.get_or_insert(Default::default()),
+                "vm" => counts.vm.get_or_insert(Default::default()),
+                "host" => counts.host.get_or_insert(Default::default()),
+                _ => counts.other.get_or_insert(Default::default()),
+            };
+
+            type_count.groups += 1;
+            type_count.snapshots += snapshot_count;
 
-    Ok(snapshots)
+            Ok(counts)
+        })
 }
 
 #[api(
@@ -408,10 +537,17 @@ pub fn list_snapshots (
             store: {
                 schema: DATASTORE_SCHEMA,
             },
+            verbose: {
+                type: bool,
+                default: false,
+                optional: true,
+                description: "Include additional information like snapshot counts and GC status.",
+            },
         },
+
     },
     returns: {
-        type: StorageStatus,
+        type: DataStoreStatus,
     },
     access: {
         permission: &Permission::Privilege(&["datastore", "{store}"], PRIV_DATASTORE_AUDIT | PRIV_DATASTORE_BACKUP, true),
@@ -420,11 +556,38 @@ pub fn list_snapshots (
 /// Get datastore status.
 pub fn status(
     store: String,
+    verbose: bool,
     _info: &ApiMethod,
-    _rpcenv: &mut dyn RpcEnvironment,
-) -> Result<StorageStatus, Error> {
+    rpcenv: &mut dyn RpcEnvironment,
+) -> Result<DataStoreStatus, Error> {
     let datastore = DataStore::lookup_datastore(&store)?;
-    crate::tools::disks::disk_usage(&datastore.base_path())
+    let storage = crate::tools::disks::disk_usage(&datastore.base_path())?;
+    let (counts, gc_status) = if verbose {
+        let auth_id: Authid = rpcenv.get_auth_id().unwrap().parse()?;
+        let user_info = CachedUserInfo::new()?;
+
+        let store_privs = user_info.lookup_privs(&auth_id, &["datastore", &store]);
+        let filter_owner = if store_privs & PRIV_DATASTORE_AUDIT != 0 {
+            None
+        } else {
+            Some(&auth_id)
+        };
+
+        let counts = Some(get_snapshots_count(&datastore, filter_owner)?);
+        let gc_status = Some(datastore.last_gc_status());
+
+        (counts, gc_status)
+    } else {
+        (None, None)
+    };
+
+    Ok(DataStoreStatus {
+        total: storage.total,
+        used: storage.used,
+        avail: storage.avail,
+        gc_status,
+        counts,
+    })
 }
 
 #[api(
@@ -451,7 +614,7 @@ pub fn status(
         schema: UPID_SCHEMA,
     },
     access: {
-        permission: &Permission::Privilege(&["datastore", "{store}"], PRIV_DATASTORE_READ | PRIV_DATASTORE_BACKUP, true), // fixme
+        permission: &Permission::Privilege(&["datastore", "{store}"], PRIV_DATASTORE_VERIFY | PRIV_DATASTORE_BACKUP, true),
     },
 )]
 /// Verify backups.
@@ -467,56 +630,93 @@ pub fn verify(
 ) -> Result<Value, Error> {
     let datastore = DataStore::lookup_datastore(&store)?;
 
+    let auth_id: Authid = rpcenv.get_auth_id().unwrap().parse()?;
     let worker_id;
 
     let mut backup_dir = None;
     let mut backup_group = None;
+    let mut worker_type = "verify";
 
     match (backup_type, backup_id, backup_time) {
         (Some(backup_type), Some(backup_id), Some(backup_time)) => {
-            worker_id = format!("{}_{}_{}_{:08X}", store, backup_type, backup_id, backup_time);
-            let dir = BackupDir::new(backup_type, backup_id, backup_time);
+            worker_id = format!("{}:{}/{}/{:08X}", store, backup_type, backup_id, backup_time);
+            let dir = BackupDir::new(backup_type, backup_id, backup_time)?;
+
+            check_priv_or_backup_owner(&datastore, dir.group(), &auth_id, PRIV_DATASTORE_VERIFY)?;
+
             backup_dir = Some(dir);
+            worker_type = "verify_snapshot";
         }
         (Some(backup_type), Some(backup_id), None) => {
-            worker_id = format!("{}_{}_{}", store, backup_type, backup_id);
+            worker_id = format!("{}:{}/{}", store, backup_type, backup_id);
             let group = BackupGroup::new(backup_type, backup_id);
+
+            check_priv_or_backup_owner(&datastore, &group, &auth_id, PRIV_DATASTORE_VERIFY)?;
+
             backup_group = Some(group);
+            worker_type = "verify_group";
         }
         (None, None, None) => {
             worker_id = store.clone();
         }
-        _ => bail!("parameters do not spefify a backup group or snapshot"),
+        _ => bail!("parameters do not specify a backup group or snapshot"),
     }
 
-    let userid: Userid = rpcenv.get_user().unwrap().parse()?;
     let to_stdout = if rpcenv.env_type() == RpcEnvironmentType::CLI { true } else { false };
 
     let upid_str = WorkerTask::new_thread(
-        "verify",
+        worker_type,
         Some(worker_id.clone()),
-        userid,
+        auth_id.clone(),
         to_stdout,
         move |worker| {
+            let verified_chunks = Arc::new(Mutex::new(HashSet::with_capacity(1024*16)));
+            let corrupt_chunks = Arc::new(Mutex::new(HashSet::with_capacity(64)));
+
             let failed_dirs = if let Some(backup_dir) = backup_dir {
-                let mut verified_chunks = HashSet::with_capacity(1024*16);
-                let mut corrupt_chunks = HashSet::with_capacity(64);
                 let mut res = Vec::new();
-                if !verify_backup_dir(&datastore, &backup_dir, &mut verified_chunks, &mut corrupt_chunks, &worker)? {
+                if !verify_backup_dir(
+                    datastore,
+                    &backup_dir,
+                    verified_chunks,
+                    corrupt_chunks,
+                    worker.clone(),
+                    worker.upid().clone(),
+                    None,
+                )? {
                     res.push(backup_dir.to_string());
                 }
                 res
             } else if let Some(backup_group) = backup_group {
-                verify_backup_group(&datastore, &backup_group, &worker)?
+                let failed_dirs = verify_backup_group(
+                    datastore,
+                    &backup_group,
+                    verified_chunks,
+                    corrupt_chunks,
+                    &mut StoreProgress::new(1),
+                    worker.clone(),
+                    worker.upid(),
+                    None,
+                )?;
+                failed_dirs
             } else {
-                verify_all_backups(&datastore, &worker)?
+                let privs = CachedUserInfo::new()?
+                    .lookup_privs(&auth_id, &["datastore", &store]);
+
+                let owner = if privs & PRIV_DATASTORE_VERIFY == 0 {
+                    Some(auth_id)
+                } else {
+                    None
+                };
+
+                verify_all_backups(datastore, worker.clone(), worker.upid(), owner, None)?
             };
             if failed_dirs.len() > 0 {
-                worker.log("Failed to verify following snapshots:");
+                worker.log("Failed to verify the following snapshots/groups:");
                 for dir in failed_dirs {
                     worker.log(format!("\t{}", dir));
                 }
-                bail!("verfication failed - please check the log for details");
+                bail!("verification failed - please check the log for details");
             }
             Ok(())
         },
@@ -573,7 +773,7 @@ pub const API_RETURN_SCHEMA_PRUNE: Schema = ArraySchema::new(
     &PruneListItem::API_SCHEMA
 ).schema();
 
-const API_METHOD_PRUNE: ApiMethod = ApiMethod::new(
+pub const API_METHOD_PRUNE: ApiMethod = ApiMethod::new(
     &ApiHandler::Sync(&prune),
     &ObjectSchema::new(
         "Prune the datastore.",
@@ -588,7 +788,7 @@ const API_METHOD_PRUNE: ApiMethod = ApiMethod::new(
             ("store", false, &DATASTORE_SCHEMA),
         ])
     ))
-    .returns(&API_RETURN_SCHEMA_PRUNE)
+    .returns(ReturnType::new(false, &API_RETURN_SCHEMA_PRUNE))
     .access(None, &Permission::Privilege(
     &["datastore", "{store}"],
     PRIV_DATASTORE_MODIFY | PRIV_DATASTORE_PRUNE,
@@ -605,9 +805,7 @@ fn prune(
     let backup_type = tools::required_string_param(&param, "backup-type")?;
     let backup_id = tools::required_string_param(&param, "backup-id")?;
 
-    let userid: Userid = rpcenv.get_user().unwrap().parse()?;
-    let user_info = CachedUserInfo::new()?;
-    let user_privs = user_info.lookup_privs(&userid, &["datastore", &store]);
+    let auth_id: Authid = rpcenv.get_auth_id().unwrap().parse()?;
 
     let dry_run = param["dry-run"].as_bool().unwrap_or(false);
 
@@ -615,8 +813,7 @@ fn prune(
 
     let datastore = DataStore::lookup_datastore(&store)?;
 
-    let allowed = (user_privs & PRIV_DATASTORE_MODIFY) != 0;
-    if !allowed { check_backup_owner(&datastore, &group, &userid)?; }
+    check_priv_or_backup_owner(&datastore, &group, &auth_id, PRIV_DATASTORE_MODIFY)?;
 
     let prune_options = PruneOptions {
         keep_last: param["keep-last"].as_u64(),
@@ -627,7 +824,7 @@ fn prune(
         keep_yearly: param["keep-yearly"].as_u64(),
     };
 
-    let worker_id = format!("{}_{}_{}", store, backup_type, backup_id);
+    let worker_id = format!("{}:{}/{}", store, backup_type, backup_id);
 
     let mut prune_result = Vec::new();
 
@@ -649,7 +846,7 @@ fn prune(
             prune_result.push(json!({
                 "backup-type": group.backup_type(),
                 "backup-id": group.backup_id(),
-                "backup-time": backup_time.timestamp(),
+                "backup-time": backup_time,
                 "keep": keep,
             }));
         }
@@ -658,55 +855,54 @@ fn prune(
 
 
     // We use a WorkerTask just to have a task log, but run synchrounously
-    let worker = WorkerTask::new("prune", Some(worker_id), Userid::root_userid().clone(), true)?;
-
-    let result = try_block! {
-        if keep_all {
-            worker.log("No prune selection - keeping all files.");
-        } else {
-            worker.log(format!("retention options: {}", prune_options.cli_options_string()));
-            worker.log(format!("Starting prune on store \"{}\" group \"{}/{}\"",
-                               store, backup_type, backup_id));
-        }
-
-        for (info, mut keep) in prune_info {
-            if keep_all { keep = true; }
-
-            let backup_time = info.backup_dir.backup_time();
-            let timestamp = BackupDir::backup_time_to_string(backup_time);
-            let group = info.backup_dir.group();
+    let worker = WorkerTask::new("prune", Some(worker_id), auth_id.clone(), true)?;
+
+    if keep_all {
+        worker.log("No prune selection - keeping all files.");
+    } else {
+        worker.log(format!("retention options: {}", prune_options.cli_options_string()));
+        worker.log(format!("Starting prune on store \"{}\" group \"{}/{}\"",
+                            store, backup_type, backup_id));
+    }
 
+    for (info, mut keep) in prune_info {
+        if keep_all { keep = true; }
 
-            let msg = format!(
-                "{}/{}/{} {}",
-                group.backup_type(),
-                group.backup_id(),
-                timestamp,
-                if keep { "keep" } else { "remove" },
-            );
+        let backup_time = info.backup_dir.backup_time();
+        let timestamp = info.backup_dir.backup_time_string();
+        let group = info.backup_dir.group();
 
-            worker.log(msg);
 
-            prune_result.push(json!({
-                "backup-type": group.backup_type(),
-                "backup-id": group.backup_id(),
-                "backup-time": backup_time.timestamp(),
-                "keep": keep,
-            }));
+        let msg = format!(
+            "{}/{}/{} {}",
+            group.backup_type(),
+            group.backup_id(),
+            timestamp,
+            if keep { "keep" } else { "remove" },
+        );
 
-            if !(dry_run || keep) {
-                datastore.remove_backup_dir(&info.backup_dir, true)?;
+        worker.log(msg);
+
+        prune_result.push(json!({
+            "backup-type": group.backup_type(),
+            "backup-id": group.backup_id(),
+            "backup-time": backup_time,
+            "keep": keep,
+        }));
+
+        if !(dry_run || keep) {
+            if let Err(err) = datastore.remove_backup_dir(&info.backup_dir, false) {
+                worker.warn(
+                    format!(
+                        "failed to remove dir {:?}: {}",
+                        info.backup_dir.relative_path(), err
+                    )
+                );
             }
         }
+    }
 
-        Ok(())
-    };
-
-    worker.log_result(&result);
-
-    if let Err(err) = result {
-        bail!("prune failed - {}", err);
-    };
+    worker.log_result(&Ok(()));
 
     Ok(json!(prune_result))
 }
@@ -734,21 +930,15 @@ fn start_garbage_collection(
 ) -> Result<Value, Error> {
 
     let datastore = DataStore::lookup_datastore(&store)?;
+    let auth_id: Authid = rpcenv.get_auth_id().unwrap().parse()?;
 
-    println!("Starting garbage collection on store {}", store);
+    let job =  Job::new("garbage_collection", &store)
+        .map_err(|_| format_err!("garbage collection already running"))?;
 
     let to_stdout = if rpcenv.env_type() == RpcEnvironmentType::CLI { true } else { false };
 
-    let upid_str = WorkerTask::new_thread(
-        "garbage_collection",
-        Some(store.clone()),
-        Userid::root_userid().clone(),
-        to_stdout,
-        move |worker| {
-            worker.log(format!("starting garbage collection on store {}", store));
-            datastore.garbage_collection(&worker)
-        },
-    )?;
+    let upid_str = crate::server::do_garbage_collection_job(job, datastore, &auth_id, None, to_stdout)
+        .map_err(|err| format_err!("unable to start garbage collection job on datastore {} - {}", store, err))?;
 
     Ok(json!(upid_str))
 }
@@ -786,18 +976,7 @@ pub fn garbage_collection_status(
     returns: {
         description: "List the accessible datastores.",
         type: Array,
-        items: {
-            description: "Datastore name and description.",
-            properties: {
-                store: {
-                    schema: DATASTORE_SCHEMA,
-                },
-                comment: {
-                    optional: true,
-                    schema: SINGLE_LINE_COMMENT_SCHEMA,
-                },
-            },
-        },
+        items: { type: DataStoreListItem },
     },
     access: {
         permission: &Permission::Anybody,
@@ -808,24 +987,25 @@ fn get_datastore_list(
     _param: Value,
     _info: &ApiMethod,
     rpcenv: &mut dyn RpcEnvironment,
-) -> Result<Value, Error> {
+) -> Result<Vec<DataStoreListItem>, Error> {
 
     let (config, _digest) = datastore::config()?;
 
-    let userid: Userid = rpcenv.get_user().unwrap().parse()?;
+    let auth_id: Authid = rpcenv.get_auth_id().unwrap().parse()?;
     let user_info = CachedUserInfo::new()?;
 
     let mut list = Vec::new();
 
     for (store, (_, data)) in &config.sections {
-        let user_privs = user_info.lookup_privs(&userid, &["datastore", &store]);
+        let user_privs = user_info.lookup_privs(&auth_id, &["datastore", &store]);
         let allowed = (user_privs & (PRIV_DATASTORE_AUDIT| PRIV_DATASTORE_BACKUP)) != 0;
         if allowed {
-            let mut entry = json!({ "store": store });
-            if let Some(comment) = data["comment"].as_str() {
-                entry["comment"] = comment.into();
-            }
-            list.push(entry);
+            list.push(
+                DataStoreListItem {
+                    store: store.clone(),
+                    comment: data["comment"].as_str().map(String::from),
+                }
+            );
         }
     }
 
@@ -863,9 +1043,7 @@ fn download_file(
         let store = tools::required_string_param(&param, "store")?;
         let datastore = DataStore::lookup_datastore(store)?;
 
-        let userid: Userid = rpcenv.get_user().unwrap().parse()?;
-        let user_info = CachedUserInfo::new()?;
-        let user_privs = user_info.lookup_privs(&userid, &["datastore", &store]);
+        let auth_id: Authid = rpcenv.get_auth_id().unwrap().parse()?;
 
         let file_name = tools::required_string_param(&param, "file-name")?.to_owned();
 
@@ -873,10 +1051,9 @@ fn download_file(
         let backup_id = tools::required_string_param(&param, "backup-id")?;
         let backup_time = tools::required_integer_param(&param, "backup-time")?;
 
-        let backup_dir = BackupDir::new(backup_type, backup_id, backup_time);
+        let backup_dir = BackupDir::new(backup_type, backup_id, backup_time)?;
 
-        let allowed = (user_privs & PRIV_DATASTORE_READ) != 0;
-        if !allowed { check_backup_owner(&datastore, backup_dir.group(), &userid)?; }
+        check_priv_or_backup_owner(&datastore, backup_dir.group(), &auth_id, PRIV_DATASTORE_READ)?;
 
         println!("Download {} from {} ({}/{})", file_name, store, backup_dir, file_name);
 
@@ -936,9 +1113,7 @@ fn download_file_decoded(
         let store = tools::required_string_param(&param, "store")?;
         let datastore = DataStore::lookup_datastore(store)?;
 
-        let userid: Userid = rpcenv.get_user().unwrap().parse()?;
-        let user_info = CachedUserInfo::new()?;
-        let user_privs = user_info.lookup_privs(&userid, &["datastore", &store]);
+        let auth_id: Authid = rpcenv.get_auth_id().unwrap().parse()?;
 
         let file_name = tools::required_string_param(&param, "file-name")?.to_owned();
 
@@ -946,12 +1121,11 @@ fn download_file_decoded(
         let backup_id = tools::required_string_param(&param, "backup-id")?;
         let backup_time = tools::required_integer_param(&param, "backup-time")?;
 
-        let backup_dir = BackupDir::new(backup_type, backup_id, backup_time);
+        let backup_dir = BackupDir::new(backup_type, backup_id, backup_time)?;
 
-        let allowed = (user_privs & PRIV_DATASTORE_READ) != 0;
-        if !allowed { check_backup_owner(&datastore, backup_dir.group(), &userid)?; }
+        check_priv_or_backup_owner(&datastore, backup_dir.group(), &auth_id, PRIV_DATASTORE_READ)?;
 
-        let (_manifest, files) = read_backup_index(&datastore, &backup_dir)?;
+        let (manifest, files) = read_backup_index(&datastore, &backup_dir)?;
         for file in files {
             if file.filename == file_name && file.crypt_mode == Some(CryptMode::Encrypt) {
                 bail!("cannot decode '{}' - is encrypted", file_name);
@@ -970,8 +1144,10 @@ fn download_file_decoded(
             "didx" => {
                 let index = DynamicIndexReader::open(&path)
                     .map_err(|err| format_err!("unable to read dynamic index '{:?}' - {}", &path, err))?;
+                let (csum, size) = index.compute_csum();
+                manifest.verify_file(&file_name, &csum, size)?;
 
-                let chunk_reader = LocalChunkReader::new(datastore, None);
+                let chunk_reader = LocalChunkReader::new(datastore, None, CryptMode::None);
                 let reader = AsyncIndexReader::new(index, chunk_reader);
                 Body::wrap_stream(AsyncReaderStream::new(reader)
                     .map_err(move |err| {
@@ -983,7 +1159,10 @@ fn download_file_decoded(
                 let index = FixedIndexReader::open(&path)
                     .map_err(|err| format_err!("unable to read fixed index '{:?}' - {}", &path, err))?;
 
-                let chunk_reader = LocalChunkReader::new(datastore, None);
+                let (csum, size) = index.compute_csum();
+                manifest.verify_file(&file_name, &csum, size)?;
+
+                let chunk_reader = LocalChunkReader::new(datastore, None, CryptMode::None);
                 let reader = AsyncIndexReader::new(index, chunk_reader);
                 Body::wrap_stream(AsyncReaderStream::with_buffer_size(reader, 4*1024*1024)
                     .map_err(move |err| {
@@ -995,6 +1174,8 @@ fn download_file_decoded(
                 let file = std::fs::File::open(&path)
                     .map_err(|err| http_err!(BAD_REQUEST, "File open failed: {}", err))?;
 
+                // FIXME: load full blob to verify index checksum?
+
                 Body::wrap_stream(
                     WrappedReaderStream::new(DataBlobReader::new(file, None)?)
                         .map_err(move |err| {
@@ -1052,10 +1233,11 @@ fn upload_backup_log(
         let backup_id = tools::required_string_param(&param, "backup-id")?;
         let backup_time = tools::required_integer_param(&param, "backup-time")?;
 
-        let backup_dir = BackupDir::new(backup_type, backup_id, backup_time);
+        let backup_dir = BackupDir::new(backup_type, backup_id, backup_time)?;
 
-        let userid: Userid = rpcenv.get_user().unwrap().parse()?;
-        check_backup_owner(&datastore, backup_dir.group(), &userid)?;
+        let auth_id: Authid = rpcenv.get_auth_id().unwrap().parse()?;
+        let owner = datastore.get_owner(backup_dir.group())?;
+        check_backup_owner(&owner, &auth_id)?;
 
         let mut path = datastore.base_path();
         path.push(backup_dir.relative_path());
@@ -1066,7 +1248,7 @@ fn upload_backup_log(
         }
 
         println!("Upload backup log to {}/{}/{}/{}/{}", store,
-                 backup_type, backup_id, BackupDir::backup_time_to_string(backup_dir.backup_time()), file_name);
+                 backup_type, backup_id, backup_dir.backup_time_string(), file_name);
 
         let data = req_body
             .map_err(Error::from)
@@ -1124,23 +1306,32 @@ fn catalog(
 ) -> Result<Value, Error> {
     let datastore = DataStore::lookup_datastore(&store)?;
 
-    let userid: Userid = rpcenv.get_user().unwrap().parse()?;
-    let user_info = CachedUserInfo::new()?;
-    let user_privs = user_info.lookup_privs(&userid, &["datastore", &store]);
+    let auth_id: Authid = rpcenv.get_auth_id().unwrap().parse()?;
 
-    let backup_dir = BackupDir::new(backup_type, backup_id, backup_time);
+    let backup_dir = BackupDir::new(backup_type, backup_id, backup_time)?;
 
-    let allowed = (user_privs & PRIV_DATASTORE_READ) != 0;
-    if !allowed { check_backup_owner(&datastore, backup_dir.group(), &userid)?; }
+    check_priv_or_backup_owner(&datastore, backup_dir.group(), &auth_id, PRIV_DATASTORE_READ)?;
+
+    let file_name = CATALOG_NAME;
+
+    let (manifest, files) = read_backup_index(&datastore, &backup_dir)?;
+    for file in files {
+        if file.filename == file_name && file.crypt_mode == Some(CryptMode::Encrypt) {
+            bail!("cannot decode '{}' - is encrypted", file_name);
+        }
+    }
 
     let mut path = datastore.base_path();
     path.push(backup_dir.relative_path());
-    path.push(CATALOG_NAME);
+    path.push(file_name);
 
     let index = DynamicIndexReader::open(&path)
         .map_err(|err| format_err!("unable to read dynamic index '{:?}' - {}", &path, err))?;
 
-    let chunk_reader = LocalChunkReader::new(datastore, None);
+    let (csum, size) = index.compute_csum();
+    manifest.verify_file(&file_name, &csum, size)?;
+
+    let chunk_reader = LocalChunkReader::new(datastore, None, CryptMode::None);
     let reader = BufferedDynamicReader::new(index, chunk_reader);
 
     let mut catalog_reader = CatalogReader::new(reader);
@@ -1192,11 +1383,71 @@ fn catalog(
     Ok(res.into())
 }
 
+fn recurse_files<'a, T, W>(
+    zip: &'a mut ZipEncoder<W>,
+    decoder: &'a mut Accessor<T>,
+    prefix: &'a Path,
+    file: FileEntry<T>,
+) -> Pin<Box<dyn Future<Output = Result<(), Error>> + Send + 'a>>
+where
+    T: Clone + pxar::accessor::ReadAt + Unpin + Send + Sync + 'static,
+    W: tokio::io::AsyncWrite + Unpin + Send + 'static,
+{
+    Box::pin(async move {
+        let metadata = file.entry().metadata();
+        let path = file.entry().path().strip_prefix(&prefix)?.to_path_buf();
+
+        match file.kind() {
+            EntryKind::File { .. } => {
+                let entry = ZipEntry::new(
+                    path,
+                    metadata.stat.mtime.secs,
+                    metadata.stat.mode as u16,
+                    true,
+                );
+                zip.add_entry(entry, Some(file.contents().await?))
+                   .await
+                   .map_err(|err| format_err!("could not send file entry: {}", err))?;
+            }
+            EntryKind::Hardlink(_) => {
+                let realfile = decoder.follow_hardlink(&file).await?;
+                let entry = ZipEntry::new(
+                    path,
+                    metadata.stat.mtime.secs,
+                    metadata.stat.mode as u16,
+                    true,
+                );
+                zip.add_entry(entry, Some(realfile.contents().await?))
+                   .await
+                   .map_err(|err| format_err!("could not send file entry: {}", err))?;
+            }
+            EntryKind::Directory => {
+                let dir = file.enter_directory().await?;
+                let mut readdir = dir.read_dir();
+                let entry = ZipEntry::new(
+                    path,
+                    metadata.stat.mtime.secs,
+                    metadata.stat.mode as u16,
+                    false,
+                );
+                zip.add_entry::<FileContents<T>>(entry, None).await?;
+                while let Some(entry) = readdir.next().await {
+                    let entry = entry?.decode_entry().await?;
+                    recurse_files(zip, decoder, prefix, entry).await?;
+                }
+            }
+            _ => {} // ignore all else
+        };
+
+        Ok(())
+    })
+}
+
 #[sortable]
 pub const API_METHOD_PXAR_FILE_DOWNLOAD: ApiMethod = ApiMethod::new(
     &ApiHandler::AsyncHttp(&pxar_file_download),
     &ObjectSchema::new(
-        "Download single file from pxar file of a bacup snapshot. Only works if it's not encrypted.",
+        "Download single file from pxar file of a backup snapshot. Only works if it's not encrypted.",
         &sorted!([
             ("store", false, &DATASTORE_SCHEMA),
             ("backup-type", false, &BACKUP_TYPE_SCHEMA),
@@ -1223,9 +1474,7 @@ fn pxar_file_download(
         let store = tools::required_string_param(&param, "store")?;
         let datastore = DataStore::lookup_datastore(&store)?;
 
-        let userid: Userid = rpcenv.get_user().unwrap().parse()?;
-        let user_info = CachedUserInfo::new()?;
-        let user_privs = user_info.lookup_privs(&userid, &["datastore", &store]);
+        let auth_id: Authid = rpcenv.get_auth_id().unwrap().parse()?;
 
         let filepath = tools::required_string_param(&param, "filepath")?.to_owned();
 
@@ -1233,13 +1482,9 @@ fn pxar_file_download(
         let backup_id = tools::required_string_param(&param, "backup-id")?;
         let backup_time = tools::required_integer_param(&param, "backup-time")?;
 
-        let backup_dir = BackupDir::new(backup_type, backup_id, backup_time);
+        let backup_dir = BackupDir::new(backup_type, backup_id, backup_time)?;
 
-        let allowed = (user_privs & PRIV_DATASTORE_READ) != 0;
-        if !allowed { check_backup_owner(&datastore, backup_dir.group(), &userid)?; }
-
-        let mut path = datastore.base_path();
-        path.push(backup_dir.relative_path());
+        check_priv_or_backup_owner(&datastore, backup_dir.group(), &auth_id, PRIV_DATASTORE_READ)?;
 
         let mut components = base64::decode(&filepath)?;
         if components.len() > 0 && components[0] == '/' as u8 {
@@ -1247,15 +1492,26 @@ fn pxar_file_download(
         }
 
         let mut split = components.splitn(2, |c| *c == '/' as u8);
-        let pxar_name = split.next().unwrap();
+        let pxar_name = std::str::from_utf8(split.next().unwrap())?;
         let file_path = split.next().ok_or(format_err!("filepath looks strange '{}'", filepath))?;
+        let (manifest, files) = read_backup_index(&datastore, &backup_dir)?;
+        for file in files {
+            if file.filename == pxar_name && file.crypt_mode == Some(CryptMode::Encrypt) {
+                bail!("cannot decode '{}' - is encrypted", pxar_name);
+            }
+        }
 
-        path.push(OsStr::from_bytes(&pxar_name));
+        let mut path = datastore.base_path();
+        path.push(backup_dir.relative_path());
+        path.push(pxar_name);
 
         let index = DynamicIndexReader::open(&path)
             .map_err(|err| format_err!("unable to read dynamic index '{:?}' - {}", &path, err))?;
 
-        let chunk_reader = LocalChunkReader::new(datastore, None);
+        let (csum, size) = index.compute_csum();
+        manifest.verify_file(&pxar_name, &csum, size)?;
+
+        let chunk_reader = LocalChunkReader::new(datastore, None, CryptMode::None);
         let reader = BufferedDynamicReader::new(index, chunk_reader);
         let archive_size = reader.archive_size();
         let reader = LocalDynamicReadAt::new(reader);
@@ -1266,22 +1522,54 @@ fn pxar_file_download(
             .lookup(OsStr::from_bytes(file_path)).await?
             .ok_or(format_err!("error opening '{:?}'", file_path))?;
 
-        let file = match file.kind() {
-            EntryKind::File { .. } => file,
-            EntryKind::Hardlink(_) => {
-                decoder.follow_hardlink(&file).await?
-            },
-            // TODO symlink
-            other => bail!("cannot download file of type {:?}", other),
-        };
+        let body = match file.kind() {
+            EntryKind::File { .. } => Body::wrap_stream(
+                AsyncReaderStream::new(file.contents().await?).map_err(move |err| {
+                    eprintln!("error during streaming of file '{:?}' - {}", filepath, err);
+                    err
+                }),
+            ),
+            EntryKind::Hardlink(_) => Body::wrap_stream(
+                AsyncReaderStream::new(decoder.follow_hardlink(&file).await?.contents().await?)
+                    .map_err(move |err| {
+                        eprintln!(
+                            "error during streaming of hardlink '{:?}' - {}",
+                            filepath, err
+                        );
+                        err
+                    }),
+            ),
+            EntryKind::Directory => {
+                let (sender, receiver) = tokio::sync::mpsc::channel(100);
+                let mut prefix = PathBuf::new();
+                let mut components = file.entry().path().components();
+                components.next_back(); // discar last
+                for comp in components {
+                    prefix.push(comp);
+                }
 
-        let body = Body::wrap_stream(
-            AsyncReaderStream::new(file.contents().await?)
-                .map_err(move |err| {
-                    eprintln!("error during streaming of '{:?}' - {}", filepath, err);
+                let channelwriter = AsyncChannelWriter::new(sender, 1024 * 1024);
+
+                crate::server::spawn_internal_task(async move {
+                    let mut zipencoder = ZipEncoder::new(channelwriter);
+                    let mut decoder = decoder;
+                    recurse_files(&mut zipencoder, &mut decoder, &prefix, file)
+                        .await
+                        .map_err(|err| eprintln!("error during creating of zip: {}", err))?;
+
+                    zipencoder
+                        .finish()
+                        .await
+                        .map_err(|err| eprintln!("error during finishing of zip: {}", err))
+                });
+
+                Body::wrap_stream(ReceiverStream::new(receiver).map_err(move |err| {
+                    eprintln!("error during streaming of zip '{:?}' - {}", filepath, err);
                     err
-                })
-        );
+                }))
+            }
+            other => bail!("cannot download file of type {:?}", other),
+        };
 
         // fixme: set other headers ?
         Ok(Response::builder()
@@ -1349,7 +1637,7 @@ fn get_rrd_stats(
         },
     },
     access: {
-        permission: &Permission::Privilege(&["datastore", "{store}"], PRIV_DATASTORE_READ | PRIV_DATASTORE_BACKUP, true),
+        permission: &Permission::Privilege(&["datastore", "{store}"], PRIV_DATASTORE_AUDIT | PRIV_DATASTORE_BACKUP, true),
     },
 )]
 /// Get "notes" for a specific backup
@@ -1362,18 +1650,14 @@ fn get_notes(
 ) -> Result<String, Error> {
     let datastore = DataStore::lookup_datastore(&store)?;
 
-    let userid: Userid = rpcenv.get_user().unwrap().parse()?;
-    let user_info = CachedUserInfo::new()?;
-    let user_privs = user_info.lookup_privs(&userid, &["datastore", &store]);
-
-    let backup_dir = BackupDir::new(backup_type, backup_id, backup_time);
+    let auth_id: Authid = rpcenv.get_auth_id().unwrap().parse()?;
+    let backup_dir = BackupDir::new(backup_type, backup_id, backup_time)?;
 
-    let allowed = (user_privs & PRIV_DATASTORE_READ) != 0;
-    if !allowed { check_backup_owner(&datastore, backup_dir.group(), &userid)?; }
+    check_priv_or_backup_owner(&datastore, backup_dir.group(), &auth_id, PRIV_DATASTORE_AUDIT)?;
 
-    let manifest = datastore.load_manifest_json(&backup_dir)?;
+    let (manifest, _) = datastore.load_manifest(&backup_dir)?;
 
-    let notes = manifest["unprotected"]["notes"]
+    let notes = manifest.unprotected["notes"]
         .as_str()
         .unwrap_or("");
 
@@ -1401,7 +1685,9 @@ fn get_notes(
         },
     },
     access: {
-        permission: &Permission::Privilege(&["datastore", "{store}"], PRIV_DATASTORE_MODIFY, true),
+        permission: &Permission::Privilege(&["datastore", "{store}"],
+                                           PRIV_DATASTORE_MODIFY | PRIV_DATASTORE_BACKUP,
+                                           true),
     },
 )]
 /// Set "notes" for a specific backup
@@ -1415,20 +1701,111 @@ fn set_notes(
 ) -> Result<(), Error> {
     let datastore = DataStore::lookup_datastore(&store)?;
 
-    let userid: Userid = rpcenv.get_user().unwrap().parse()?;
+    let auth_id: Authid = rpcenv.get_auth_id().unwrap().parse()?;
+    let backup_dir = BackupDir::new(backup_type, backup_id, backup_time)?;
+
+    check_priv_or_backup_owner(&datastore, backup_dir.group(), &auth_id, PRIV_DATASTORE_MODIFY)?;
+
+    datastore.update_manifest(&backup_dir,|manifest| {
+        manifest.unprotected["notes"] = notes.into();
+    }).map_err(|err| format_err!("unable to update manifest blob - {}", err))?;
+
+    Ok(())
+}
+
+#[api(
+    input: {
+        properties: {
+            store: {
+                schema: DATASTORE_SCHEMA,
+            },
+            "backup-type": {
+                schema: BACKUP_TYPE_SCHEMA,
+            },
+            "backup-id": {
+                schema: BACKUP_ID_SCHEMA,
+            },
+            "new-owner": {
+                type: Authid,
+            },
+        },
+    },
+    access: {
+        permission: &Permission::Anybody,
+        description: "Datastore.Modify on whole datastore, or changing ownership between user and a user's token for owned backups with Datastore.Backup"
+    },
+)]
+/// Change owner of a backup group
+fn set_backup_owner(
+    store: String,
+    backup_type: String,
+    backup_id: String,
+    new_owner: Authid,
+    rpcenv: &mut dyn RpcEnvironment,
+) -> Result<(), Error> {
+
+    let datastore = DataStore::lookup_datastore(&store)?;
+
+    let backup_group = BackupGroup::new(backup_type, backup_id);
+
+    let auth_id: Authid = rpcenv.get_auth_id().unwrap().parse()?;
+
     let user_info = CachedUserInfo::new()?;
-    let user_privs = user_info.lookup_privs(&userid, &["datastore", &store]);
 
-    let backup_dir = BackupDir::new(backup_type, backup_id, backup_time);
+    let privs = user_info.lookup_privs(&auth_id, &["datastore", &store]);
 
-    let allowed = (user_privs & PRIV_DATASTORE_READ) != 0;
-    if !allowed { check_backup_owner(&datastore, backup_dir.group(), &userid)?; }
+    let allowed = if (privs & PRIV_DATASTORE_MODIFY) != 0 {
+        // High-privilege user/token
+        true
+    } else if (privs & PRIV_DATASTORE_BACKUP) != 0 {
+        let owner = datastore.get_owner(&backup_group)?;
+
+        match (owner.is_token(), new_owner.is_token()) {
+            (true, true) => {
+                // API token to API token, owned by same user
+                let owner = owner.user();
+                let new_owner = new_owner.user();
+                owner == new_owner && Authid::from(owner.clone()) == auth_id
+            },
+            (true, false) => {
+                // API token to API token owner
+                Authid::from(owner.user().clone()) == auth_id
+                    && new_owner == auth_id
+            },
+            (false, true) => {
+                // API token owner to API token
+                owner == auth_id
+                    && Authid::from(new_owner.user().clone()) == auth_id
+            },
+            (false, false) => {
+                // User to User, not allowed for unprivileged users
+                false
+            },
+        }
+    } else {
+        false
+    };
 
-    let mut manifest = datastore.load_manifest_json(&backup_dir)?;
+    if !allowed {
+        return Err(http_err!(UNAUTHORIZED,
+                  "{} does not have permission to change owner of backup group '{}' to {}",
+                  auth_id,
+                  backup_group,
+                  new_owner,
+        ));
+    }
 
-    manifest["unprotected"]["notes"] = notes.into();
+    if !user_info.is_active_auth_id(&new_owner) {
+        bail!("{} '{}' is inactive or non-existent",
+              if new_owner.is_token() {
+                  "API token".to_string()
+              } else {
+                  "user".to_string()
+              },
+              new_owner);
+    }
 
-    datastore.store_manifest(&backup_dir, manifest)?;
+    datastore.set_owner(&backup_group, &new_owner, true)?;
 
     Ok(())
 }
@@ -1440,6 +1817,11 @@ const DATASTORE_INFO_SUBDIRS: SubdirMap = &[
         &Router::new()
             .get(&API_METHOD_CATALOG)
     ),
+    (
+        "change-owner",
+        &Router::new()
+            .post(&API_METHOD_SET_BACKUP_OWNER)
+    ),
     (
         "download",
         &Router::new()