network-manager: remove useless use of basename

[thirdparty/dracut.git] / lsinitrd.sh

diff --git a/lsinitrd.sh b/lsinitrd.sh
index f40884536049f8a51c31dd5fb0be8791f921d439..67af769e0f63dd791fb8ae7754358bd38e4c891c 100755 (executable)
--- a/lsinitrd.sh
+++ b/lsinitrd.sh
@@ -28,7 +28,10 @@ usage()
         echo "-m, --mod                   list modules."
         echo "-f, --file <filename>       print the contents of <filename>."
         echo "--unpack                    unpack the initramfs, instead of displaying the contents."
+        echo "                            If optional filenames are given, will only unpack specified files,"
+        echo "                            else the whole image will be unpacked. Won't unpack anything from early cpio part."
         echo "--unpackearly               unpack the early microcode part of the initramfs."
+        echo "                            Same as --unpack, but only unpack files from early cpio part."
         echo "-v, --verbose               unpack verbosely."
         echo "-k, --kver <kernel version> inspect the initramfs of <kernel version>."
         echo
@@ -118,6 +121,9 @@ if ! [[ -f "$image" ]]; then
     exit 1
 fi
 
+TMPDIR="$(mktemp -d -t lsinitrd.XXXXXX)"
+trap "rm -rf '$TMPDIR'" EXIT
+
 dracutlibdirs() {
     for d in lib64/dracut lib/dracut usr/lib64/dracut usr/lib/dracut; do
         echo "$d/$1"
@@ -130,7 +136,7 @@ extract_files()
     for f in "${!filenames[@]}"; do
         [[ $nofileinfo ]] || echo "initramfs:/$f"
         [[ $nofileinfo ]] || echo "========================================================================"
-        $CAT $image | cpio --extract --verbose --quiet --to-stdout $f 2>/dev/null
+        $CAT "$image" 2>/dev/null | cpio --extract --verbose --quiet --to-stdout "$f" 2>/dev/null
         ((ret+=$?))
         [[ $nofileinfo ]] || echo "========================================================================"
         [[ $nofileinfo ]] || echo
@@ -149,23 +155,79 @@ list_files()
 {
     echo "========================================================================"
     if [ "$sorted" -eq 1 ]; then
-        $CAT "$image" | cpio --extract --verbose --quiet --list | sort -n -k5
+        $CAT "$image" 2>/dev/null | cpio --extract --verbose --quiet --list | sort -n -k5
     else
-        $CAT "$image" | cpio --extract --verbose --quiet --list | sort -k9
+        $CAT "$image" 2>/dev/null | cpio --extract --verbose --quiet --list | sort -k9
     fi
     ((ret+=$?))
     echo "========================================================================"
 }
 
+list_squash_content()
+{
+    SQUASH_IMG="squash/root.img"
+    SQUASH_TMPFILE="$TMPDIR/initrd.root.sqsh"
+
+    $CAT "$image" 2>/dev/null | cpio --extract --verbose --quiet --to-stdout -- \
+        $SQUASH_IMG > "$SQUASH_TMPFILE" 2>/dev/null
+    if [[ -s $SQUASH_TMPFILE ]]; then
+        echo "Squashed content ($SQUASH_IMG):"
+        echo "========================================================================"
+        unsquashfs -ll "$SQUASH_TMPFILE" | tail -n +4
+        echo "========================================================================"
+    fi
+}
+
 unpack_files()
 {
-    $CAT "$image" | cpio -id --quiet $verbose
-    ((ret+=$?))
+    if (( ${#filenames[@]} > 0 )); then
+        for f in "${!filenames[@]}"; do
+            $CAT "$image" 2>/dev/null | cpio -id --quiet $verbose $f
+            ((ret+=$?))
+        done
+    else
+        $CAT "$image" 2>/dev/null | cpio -id --quiet $verbose
+        ((ret+=$?))
+    fi
 }
 
+read -N 2 bin < "$image"
+if [ "$bin" = "MZ" ]; then
+    command -v objcopy > /dev/null || { echo "Need 'objcopy' to unpack an UEFI executable."; exit 1; }
+    objcopy \
+        --dump-section .linux="$TMPDIR/vmlinuz" \
+        --dump-section .initrd="$TMPDIR/initrd.img" \
+        --dump-section .cmdline="$TMPDIR/cmdline.txt" \
+        --dump-section .osrel="$TMPDIR/osrel.txt" \
+        "$image" /dev/null
+    uefi="$image"
+    image="$TMPDIR/initrd.img"
+    [ -f "$image" ] || exit 1
+fi
 
 if (( ${#filenames[@]} <= 0 )) && [[ -z "$unpack" ]] && [[ -z "$unpackearly" ]]; then
-    echo "Image: $image: $(du -h $image | while read a b || [ -n "$a" ]; do echo $a;done)"
+    if [ -n $uefi ]; then
+        echo -n "initrd in UEFI: $uefi: "
+        du -h $image | while read a b || [ -n "$a" ]; do echo $a;done
+        if [ -f "$TMPDIR/osrel.txt" ]; then
+            name=$(sed -En '/^PRETTY_NAME/ s/^\w+=["'"'"']?([^"'"'"'$]*)["'"'"']?/\1/p' "$TMPDIR/osrel.txt")
+            id=$(sed -En '/^ID/ s/^\w+=["'"'"']?([^"'"'"'$]*)["'"'"']?/\1/p' "$TMPDIR/osrel.txt")
+            build=$(sed -En '/^BUILD_ID/ s/^\w+=["'"'"']?([^"'"'"'$]*)["'"'"']?/\1/p' "$TMPDIR/osrel.txt")
+            echo "OS Release: $name (${id}-${build})"
+        fi
+        if [ -f "$TMPDIR/vmlinuz" ]; then
+            version=$(strings -n 20 "$TMPDIR/vmlinuz" | sed -En '/[0-9]+\.[0-9]+\.[0-9]+/ { p; q 0 }')
+            echo "Kernel Version: $version"
+        fi
+        if [ -f "$TMPDIR/cmdline.txt" ]; then
+            echo "Command line:"
+            sed -En 's/\s+/\n/g; s/\x00/\n/; p' "$TMPDIR/cmdline.txt"
+        fi
+    else
+        echo -n "Image: $image: "
+        du -h $image | while read a b || [ -n "$a" ]; do echo $a;done
+    fi
+
     echo "========================================================================"
 fi
 
@@ -175,7 +237,10 @@ case $bin in
         CAT="cat --"
         is_early=$(cpio --extract --verbose --quiet --to-stdout -- 'early_cpio' < "$image" 2>/dev/null)
         if [[ "$is_early" ]]; then
-            if [[ -n "$unpackearly" ]]; then
+            if [[ -n "$unpack" ]]; then
+                # should use --unpackearly for early CPIO
+                :
+            elif [[ -n "$unpackearly" ]]; then
                 unpack_files
             elif (( ${#filenames[@]} > 0 )); then
                 extract_files
@@ -219,7 +284,7 @@ case $bin in
     $'\x89'LZO$'\0'*)
         CAT="lzop -d -c"
         ;;
-    $'0xFD2FB528'*)
+    $'\x28\xB5\x2F\xFD'*)
         CAT="zstd -d -c"
         ;;
     *)
@@ -241,6 +306,16 @@ if [[ $SKIP ]]; then
     CAT=skipcpio
 fi
 
+if (( ${#filenames[@]} > 1 )); then
+    TMPFILE="$TMPDIR/initrd.cpio"
+    $CAT "$image" 2>/dev/null > $TMPFILE
+    pre_decompress()
+    {
+        cat $TMPFILE
+    }
+    CAT=pre_decompress
+fi
+
 ret=0
 
 if [[ -n "$unpack" ]]; then
@@ -263,6 +338,7 @@ else
         echo
         list_modules
         list_files
+        list_squash_content
     fi
 fi