[PATCH v4 2/4] kdump-lib.sh: introduce a helper to get all crypt dev used by kdump
---
kdump-lib.sh | 21 +++++++++++++++++++++
1 file changed, 21 insertions(+)
diff --git a/kdump-lib.sh b/kdump-lib.sh
index ecb2721..e00ea43 100755
--- a/kdump-lib.sh
+++ b/kdump-lib.sh
@@ -975,3 +975,24 @@ get_luks_crypt_dev()
get_luks_crypt_dev "$(< "$_x/dev")"
done
}
+
+# kdump_get_maj_min <device>
+# Prints the major and minor of a device node.
+# Example:
+# $ get_maj_min /dev/sda2
+# 8:2
+kdump_get_maj_min() {
+ local _majmin
+ _majmin="$(stat -L -c '%t:%T' "$1" 2> /dev/null)"
+ printf "%s" "$((0x${_majmin%:*})):$((0x${_majmin#*:}))"
+}
+
+get_all_kdump_crypt_dev()
+{
+ local _dev _crypt
+
+ for _dev in $(get_block_dump_target); do
+ _crypt=$(get_luks_crypt_dev $(kdump_get_maj_min "$_dev"))
+ [[ -n "$_crypt" ]] && echo $_crypt
+ done
+}
--
2.31.1