Update composefs

And the code reworks to make it work.

Signed-off-by: Dallas Strouse <dallas.strouse2007@gmail.com>

Author: orowith2os

Cargo.lock

@@ -44,7 +44,7 @@ clap_mangen = { version = "0.3.0" }
 #   [patch."https://github.com/composefs/composefs-rs"]
 #   composefs-ctl = { path = "/path/to/composefs-rs/crates/composefs-ctl" }
 # The Justfile will auto-detect these and bind-mount them into container builds.
-composefs-ctl = { git = "https://github.com/composefs/composefs-rs", rev = "e2770757762ec5091bb183bf0e778fe97c8d5694" }
+composefs-ctl = { git = "https://github.com/composefs/composefs-rs", rev = "a4c1ca7a7a5e8cc5b87bec3ca212c2b77f48f4f5" }
 fn-error-context = "0.2.1"
 futures-util = "0.3"
 hex = "0.4.3"

Cargo.toml

@@ -52,6 +52,7 @@ impl From<(&cap_std::fs::Metadata, Xattrs)> for MyStat {
             st_uid: value.0.uid(),
             st_gid: value.0.gid(),
             st_mtim_sec: value.0.mtime(),
+            st_mtim_nsec: value.0.mtime_nsec() as u32,
             xattrs: value.1,
         })
     }

crates/etc-merge/src/lib.rs

@@ -28,7 +28,7 @@ use composefs::{
     mountcompat::{overlayfs_set_fd, overlayfs_set_lower_and_data_fds, prepare_mount},
     repository::Repository,
 };
-use composefs_boot::cmdline::get_cmdline_composefs;
+use composefs_boot::cmdline::ComposefsCmdline;
 use composefs_ctl::composefs;
 use composefs_ctl::composefs_boot;
 
@@ -463,11 +463,17 @@ pub fn setup_root(args: Args) -> Result<()> {
         config
     };
 
-    let (image, insecure) = get_cmdline_composefs::<Sha512HashValue>(&cmdline)?;
+    let composefs_info = ComposefsCmdline::<Sha512HashValue>::from_cmdline(&cmdline)
+        .context("Failed to parse composefs cmdline")?
+        .ok_or_else(|| anyhow::anyhow!("No composefs image in cmdline"))?;
 
     let new_root = match &args.root_fs {
         Some(path) => open_root_fs(path).context("Failed to clone specified root fs")?,
-        None => mount_composefs_image(&sysroot, &image.to_hex(), insecure)?,
+        None => mount_composefs_image(
+            &sysroot,
+            &composefs_info.digest().to_hex(),
+            composefs_info.is_insecure(),
+        )?,
     };
 
     // we need to clone this before the next step to make sure we get the old one
@@ -497,7 +503,7 @@ pub fn setup_root(args: Args) -> Result<()> {
     let transient_overlay_fd: Option<OwnedFd> = if config.root.transient {
         let overlay_fd = overlay_transient(
             &new_root,
-            &format!("transient:composefs={}", image.to_hex()),
+            &format!("transient:composefs={}", composefs_info.digest().to_hex()),
             None,
         )?;
 
@@ -533,7 +539,10 @@ pub fn setup_root(args: Args) -> Result<()> {
     }
 
     // etc + var
-    let state = open_dir(open_dir(&sysroot, "state/deploy")?, image.to_hex())?;
+    let state = open_dir(
+        open_dir(&sysroot, "state/deploy")?,
+        composefs_info.digest().to_hex(),
+    )?;
     mount_subdir(visible_root, &state, "etc", config.etc, MountType::Bind)?;
     // /var is bind-mounted from the deployment state directory by default.
     // The systemd.volatile=state cmdline detection above (or an explicit

crates/initramfs/src/lib.rs

@@ -82,7 +82,9 @@ use composefs_boot::bootloader::{
     BootEntry as ComposefsBootEntry, EFI_ADDON_DIR_EXT, EFI_ADDON_FILE_EXT, EFI_EXT, PEType,
     UsrLibModulesVmlinuz, get_boot_resources,
 };
-use composefs_boot::{cmdline::get_cmdline_composefs, os_release::OsReleaseInfo, uki};
+use composefs_boot::{
+    cmdline::ComposefsCmdline as ComposefsBootCmdline, os_release::OsReleaseInfo, uki,
+};
 use composefs_ctl::composefs;
 use composefs_ctl::composefs_boot;
 use composefs_ctl::composefs_oci;
@@ -811,8 +813,11 @@ fn write_pe_to_esp(
     if matches!(pe_type, PEType::Uki) {
         let cmdline = uki::get_cmdline_buffered(&mut uki_reader).context("Getting UKI cmdline")?;
 
-        let (composefs_cmdline, missing_verity_allowed_cmdline) =
-            get_cmdline_composefs::<Sha512HashValue>(&cmdline).context("Parsing composefs=")?;
+        let composefs_info = ComposefsBootCmdline::<Sha512HashValue>::from_cmdline(&cmdline)
+            .context("Parsing composefs=")?
+            .ok_or_else(|| anyhow::anyhow!("No composefs image in UKI cmdline"))?;
+        let composefs_cmdline = composefs_info.digest();
+        let missing_verity_allowed_cmdline = composefs_info.is_insecure();
 
         // If the UKI cmdline does not match what the user has passed as cmdline option
         // NOTE: This will only be checked for new installs and now upgrades/switches
@@ -830,7 +835,7 @@ fn write_pe_to_esp(
             _ => { /* no-op */ }
         }
 
-        if composefs_cmdline != *uki_id {
+        if *composefs_cmdline != *uki_id {
             anyhow::bail!(
                 "The UKI has the wrong composefs= parameter (is '{composefs_cmdline:?}', should be {uki_id:?})"
             );

crates/lib/src/bootc_composefs/boot.rs

@@ -11,6 +11,7 @@ use cap_std_ext::cap_std;
 use cap_std_ext::cap_std::fs::Dir;
 use composefs::dumpfile;
 use composefs::fsverity::{Algorithm, FsVerityHashValue};
+use composefs::repository::RepositoryConfig;
 use composefs_boot::BootOps as _;
 use composefs_ctl::composefs;
 use composefs_ctl::composefs_boot;
@@ -30,11 +31,10 @@ pub(crate) fn new_temp_composefs_repo() -> Result<(TempDir, Arc<ComposefsReposit
 
     td_dir.create_dir("repo")?;
     let repo_dir = td_dir.open_dir("repo")?;
-    let (mut repo, _created) =
-        ComposefsRepository::init_path(&repo_dir, ".", Algorithm::SHA512, false)
-            .context("Init cfs repo")?;
     // We don't need to hard require verity on the *host* system, we're just computing a checksum here
-    repo.set_insecure();
+    let config = RepositoryConfig::new(Algorithm::SHA512).set_insecure();
+    let (repo, _created) =
+        ComposefsRepository::init_path(&repo_dir, ".", config).context("Init cfs repo")?;
     Ok((td_guard, Arc::new(repo)))
 }
 
@@ -81,7 +81,7 @@ pub(crate) async fn compute_composefs_digest(
     .await
     .context("Reading container root")?;
     fs.transform_for_boot(&repo).context("Preparing for boot")?;
-    let id = fs.compute_image_id();
+    let id = fs.compute_image_id(repo.erofs_version());
     let digest = id.to_hex();
 
     if let Some(dumpfile_path) = write_dumpfile_to {

crates/lib/src/bootc_composefs/digest.rs

@@ -402,7 +402,7 @@ pub(crate) async fn composefs_gc(
                         ref_digest,
                         None,
                     ) {
-                        if let Some(img_ref) = img.image_ref() {
+                        if let Some(img_ref) = img.image_ref(booted_cfs.repo.erofs_version()) {
                             if img_ref.to_hex() == *verity {
                                 tracing::info!(
                                     "Deployment {verity} has no manifest_digest in origin; \

crates/lib/src/bootc_composefs/gc.rs

@@ -41,6 +41,7 @@ use std::sync::Arc;
 use anyhow::{Context, Result};
 
 use composefs::fsverity::{FsVerityHashValue, Sha512HashValue};
+use composefs::repository::RepositoryConfig;
 use composefs_boot::bootloader::{BootEntry as ComposefsBootEntry, get_boot_resources};
 use composefs_ctl::composefs;
 use composefs_ctl::composefs_boot;
@@ -99,16 +100,15 @@ pub(crate) async fn initialize_composefs_repository(
 
     crate::store::ensure_composefs_dir(rootfs_dir)?;
 
-    let (mut repo, _created) = crate::store::ComposefsRepository::init_path(
-        rootfs_dir,
-        "composefs",
-        composefs::fsverity::Algorithm::SHA512,
-        !allow_missing_fsverity,
-    )
-    .context("Failed to initialize composefs repository")?;
-    if allow_missing_fsverity {
-        repo.set_insecure();
-    }
+    let config = RepositoryConfig::new(composefs::fsverity::Algorithm::SHA512);
+    let config = if allow_missing_fsverity {
+        config.set_insecure()
+    } else {
+        config
+    };
+    let (repo, _created) =
+        crate::store::ComposefsRepository::init_path(rootfs_dir, "composefs", config)
+            .context("Failed to initialize composefs repository")?;
 
     let imgref: containers_image_proxy::ImageReference = state
         .source

crates/lib/src/bootc_composefs/repo.rs

@@ -141,7 +141,7 @@ pub(crate) fn validate_update(
     let mut fs = create_filesystem(repo, &oci_digest, Some(config_verity))?;
     fs.transform_for_boot(&repo)?;
 
-    let image_id = fs.compute_image_id();
+    let image_id = fs.compute_image_id(repo.erofs_version());
 
     let all_deployments = host.all_composefs_deployments()?;
 

crates/lib/src/bootc_composefs/update.rs

@@ -1892,7 +1892,7 @@ async fn run_from_opt(opt: Opt) -> Result<()> {
                 )
                 .context("Populating fs")?;
                 fs.transform_for_boot(&repo).context("Preparing for boot")?;
-                let id = fs.compute_image_id();
+                let id = fs.compute_image_id(repo.erofs_version());
                 println!("{}", id.to_hex());
 
                 if let Some(path) = write_dumpfile_to.as_deref() {