move fuse code from pbs-client to pbs-pxar-fuse

it's used by pxar-bin and proxmox-backup-client for
mounting, but pbs-client is used by more (eg. the
proxmox-backup-qemu library which really doesn't need to
pull in any fuse dependencies)

Signed-off-by: Wolfgang Bumiller <w.bumiller@proxmox.com>

Cargo.toml

@@ -25,7 +25,7 @@ members = [
     "pbs-config",
     "pbs-datastore",
     "pbs-fuse-loop",
-    "proxmox-rrd",
+    "pbs-pxar-fuse",
     "pbs-tape",
     "pbs-tools",
 
@@ -33,6 +33,8 @@ members = [
     "proxmox-backup-client",
     "proxmox-file-restore",
     "proxmox-restore-daemon",
+    "proxmox-rrd",
+
     "pxar-bin",
 ]
 

Makefile

@@ -38,13 +38,14 @@ SUBCRATES := \
 	pbs-config \
 	pbs-datastore \
 	pbs-fuse-loop \
-	proxmox-rrd \
+	pbs-pxar-fuse \
 	pbs-tape \
 	pbs-tools \
 	proxmox-backup-banner \
 	proxmox-backup-client \
 	proxmox-file-restore \
 	proxmox-restore-daemon \
+	proxmox-rrd \
 	pxar-bin
 
 ifeq ($(BUILD_MODE), release)

pbs-client/Cargo.toml

@@ -35,7 +35,6 @@ pathpatterns = "0.1.2"
 
 proxmox-async = "0.4"
 proxmox-compression = "0.1.1"
-proxmox-fuse = "0.1.3"
 proxmox-http = { version = "0.7", features = [ "client", "http-helpers", "websocket" ] }
 proxmox-io = { version = "1.0.1", features = [ "tokio" ] }
 proxmox-lang = "1.1"

pbs-client/src/catalog_shell.rs

@@ -17,16 +17,20 @@ use pathpatterns::{MatchEntry, MatchList, MatchPattern, MatchType, PatternFlag};
 use proxmox_router::cli::{self, CliCommand, CliCommandMap, CliHelper, CommandLineInterface};
 use proxmox_schema::api;
 use proxmox_sys::fs::{create_path, CreateOptions};
+use pxar::accessor::ReadAt;
 use pxar::{EntryKind, Metadata};
 
 use pbs_datastore::catalog::{self, DirEntryAttribute};
 use proxmox_async::runtime::block_in_place;
 
-use crate::pxar::fuse::{Accessor, FileEntry};
 use crate::pxar::Flags;
 
 type CatalogReader = pbs_datastore::catalog::CatalogReader<std::fs::File>;
 
+type Reader = std::sync::Arc<dyn ReadAt + Send + Sync + 'static>;
+type Accessor = pxar::accessor::aio::Accessor<Reader>;
+type FileEntry = pxar::accessor::aio::FileEntry<Reader>;
+
 const MAX_SYMLINK_COUNT: usize = 40;
 
 static mut SHELL: Option<usize> = None;

pbs-client/src/pxar/mod.rs

@@ -50,7 +50,6 @@
 pub(crate) mod create;
 pub(crate) mod dir_stack;
 pub(crate) mod extract;
-pub mod fuse;
 pub(crate) mod metadata;
 pub(crate) mod tools;
 

pbs-pxar-fuse/Cargo.toml

@@ -0,0 +1,19 @@
+[package]
+name = "pbs-pxar-fuse"
+version = "0.1.0"
+edition = "2021"
+description = "pxar fuse file system code"
+
+[dependencies]
+anyhow = "1.0"
+futures = "0.3"
+libc = "0.2"
+log = "0.4"
+tokio = "1.6"
+
+proxmox-fuse = "0.1.3"
+proxmox-io = "1.0.1"
+proxmox-lang = "1.1"
+proxmox-sys = "0.4.1"
+
+pxar = { version = "0.10.2", features = [ "tokio-io" ] }

proxmox-backup-client/Cargo.toml

@@ -9,8 +9,8 @@ anyhow = "1.0"
 futures = "0.3"
 hyper = { version = "0.14", features = [ "full" ] }
 libc = "0.2"
-nix = "0.24"
 log = "0.4"
+nix = "0.24"
 openssl = "0.10"
 serde = { version = "1.0", features = ["derive"] }
 serde_json = "1.0"
@@ -24,16 +24,18 @@ pathpatterns = "0.1.2"
 pxar = { version = "0.10.2", features = [ "tokio-io" ] }
 
 proxmox-async = "0.4"
+proxmox-fuse = "0.1.3"
 proxmox-io = "1.0.1"
 proxmox-router = { version = "1.3.0", features = [ "cli" ] }
 proxmox-schema = { version = "1.3.1", features = [ "api-macro" ] }
-proxmox-time = "1"
 proxmox-sys = { version = "0.4.1",  features = [ "sortable-macro" ] }
+proxmox-time = "1"
 
 pbs-api-types = { path = "../pbs-api-types" }
 pbs-buildcfg = { path = "../pbs-buildcfg" }
-pbs-config = { path = "../pbs-config" }
 pbs-client = { path = "../pbs-client" }
+pbs-config = { path = "../pbs-config" }
 pbs-datastore = { path = "../pbs-datastore" }
 pbs-fuse-loop = { path = "../pbs-fuse-loop" }
+pbs-pxar-fuse = { path = "../pbs-pxar-fuse" }
 pbs-tools = { path = "../pbs-tools" }

proxmox-backup-client/src/catalog.rs

@@ -219,8 +219,8 @@ async fn catalog_shell(param: Value) -> Result<(), Error> {
     );
     let reader = BufferedDynamicReader::new(index, chunk_reader);
     let archive_size = reader.archive_size();
-    let reader: pbs_client::pxar::fuse::Reader = Arc::new(BufferedDynamicReadAt::new(reader));
-    let decoder = pbs_client::pxar::fuse::Accessor::new(reader, archive_size).await?;
+    let reader: pbs_pxar_fuse::Reader = Arc::new(BufferedDynamicReadAt::new(reader));
+    let decoder = pbs_pxar_fuse::Accessor::new(reader, archive_size).await?;
 
     client.download(CATALOG_NAME, &mut tmpfile).await?;
     let index = DynamicIndexReader::new(tmpfile)

proxmox-backup-client/src/mount.rs

@@ -295,15 +295,11 @@ async fn mount_do(param: Value, pipe: Option<OwnedFd>) -> Result<Value, Error> {
         );
         let reader = BufferedDynamicReader::new(index, chunk_reader);
         let archive_size = reader.archive_size();
-        let reader: pbs_client::pxar::fuse::Reader = Arc::new(BufferedDynamicReadAt::new(reader));
-        let decoder = pbs_client::pxar::fuse::Accessor::new(reader, archive_size).await?;
+        let reader: pbs_pxar_fuse::Reader = Arc::new(BufferedDynamicReadAt::new(reader));
+        let decoder = pbs_pxar_fuse::Accessor::new(reader, archive_size).await?;
 
-        let session = pbs_client::pxar::fuse::Session::mount(
-            decoder,
-            options,
-            false,
-            Path::new(target.unwrap()),
-        )
+        let session =
+            pbs_pxar_fuse::Session::mount(decoder, options, false, Path::new(target.unwrap()))
                 .map_err(|err| format_err!("pxar mount failed: {}", err))?;
 
         daemonize()?;

pxar-bin/Cargo.toml

@@ -17,12 +17,13 @@ serde_json = "1.0"
 tokio = { version = "1.6", features = [ "rt", "rt-multi-thread" ] }
 
 pathpatterns = "0.1.2"
-#proxmox = "0.15.3"
-proxmox-async = "0.4"
-proxmox-schema = { version = "1.3.1", features = [ "api-macro" ] }
-proxmox-router = "1.3.0"
-proxmox-sys = "0.4.1"
 pxar = { version = "0.10.2", features = [ "tokio-io" ] }
 
+proxmox-async = "0.4"
+proxmox-router = "1.3.0"
+proxmox-schema = { version = "1.3.1", features = [ "api-macro" ] }
+proxmox-sys = "0.4.1"
+
 pbs-client = { path = "../pbs-client" }
+pbs-pxar-fuse = { path = "../pbs-pxar-fuse" }
 pbs-tools = { path = "../pbs-tools" }

pxar-bin/src/main.rs

@@ -12,9 +12,7 @@ use futures::select;
 use tokio::signal::unix::{signal, SignalKind};
 
 use pathpatterns::{MatchEntry, MatchType, PatternFlag};
-use pbs_client::pxar::{
-    format_single_line_entry, fuse, Flags, PxarExtractOptions, ENCODER_MAX_ENTRIES,
-};
+use pbs_client::pxar::{format_single_line_entry, Flags, PxarExtractOptions, ENCODER_MAX_ENTRIES};
 
 use proxmox_router::cli::*;
 use proxmox_schema::api;
@@ -382,7 +380,7 @@ async fn mount_archive(archive: String, mountpoint: String, verbose: bool) -> Re
     let mountpoint = Path::new(&mountpoint);
     let options = OsStr::new("ro,default_permissions");
 
-    let session = fuse::Session::mount_path(archive, options, verbose, mountpoint)
+    let session = pbs_pxar_fuse::Session::mount_path(archive, options, verbose, mountpoint)
         .await
         .map_err(|err| format_err!("pxar mount failed: {}", err))?;