# Restore capabilities: # Skip when the whole NETFS_RESTORE_CAPABILITIES array is empty. # For the 'test' one must have all array members as a single word i.e. "${name[*]}" because # the test should succeed when there is any non-empty array member, not necessarily the first one: test "${NETFS_RESTORE_CAPABILITIES[*]}" || return 0 # Be backward compatible: is_false "$NETFS_RESTORE_CAPABILITIES" && return 0 # Try to find a capabilities file. # Prefer the one in the recovery system ($VAR_DIR/recovery/capabilities) if exists # over the one that may have been restored from the backup ($TARGET_FS_ROOT/$VAR_DIR/recovery/capabilities): test -s $TARGET_FS_ROOT/$VAR_DIR/recovery/capabilities && capabilities_file="$TARGET_FS_ROOT/$VAR_DIR/recovery/capabilities" test -s $VAR_DIR/recovery/capabilities && capabilities_file="$VAR_DIR/recovery/capabilities" # Report when NETFS_RESTORE_CAPABILITIES is non-empty but there is no capabilities file: if ! test "$capabilities_file" ; then LogPrint "Cannot restore capabilities: No $VAR_DIR/recovery/capabilities or it is empty" # Do not abort the whole 'rear recover' in this case: return 0 fi LogPrint "Restoring file capabilities (NETFS_RESTORE_CAPABILITIES)" while IFS="=" read file cap ; do file="${file% }" cap="${cap# }" setcap "${cap}" "${TARGET_FS_ROOT}/${file}" 1>/dev/null || LogPrint "Error while setting capabilities to '$file'" done < <(cat $capabilities_file)