From 8ebda9d966e561bc385c3e45b44d308c06968e3e Mon Sep 17 00:00:00 2001
From: pulux <pulux@pf4sh.de>
Date: Mon, 5 Jan 2015 17:04:19 +0100
Subject: handle UUID Sources

---
 crypt.awk | 135 ++++++++++++++++++++++++++++++++------------------------------
 1 file changed, 70 insertions(+), 65 deletions(-)

(limited to 'crypt.awk')

diff --git a/crypt.awk b/crypt.awk
index 5c2a2a7..d482dd3 100644
--- a/crypt.awk
+++ b/crypt.awk
@@ -1,72 +1,77 @@
 /^#/ || /^$/ { next }
-  NF>4 { print "a valid crypttab has max 4 cols not " NF >"/dev/stderr"; next }
+NF>4 { print "a valid crypttab has max 4 cols not " NF >"/dev/stderr"; next }
 {
-  # no password or none is given, ask fo it
-  if ( NF == 2 ) system("cryptsetup luksOpen " $2 " " $1);
-  else if (NF == 3 )
-  {
-    split($3, po, "=");
-    if ( po[1] == "none") system("cryptsetup luksOpen " $2 " " $1);
-    else system("cryptsetup luksOpen -d " $3 " " $2 " " $1);
-  }
-  else
-  # the option fild is not empty parse the options
-  {
-    split($4, opts, ",");
-    for(i in opts)
+    # decod the src variants
+    split($2, o_src, "=")
+    if (o_src[1] == "UUID") "/sbin/blkid -t " $2 " -l -o device" |& getline src;
+    else src=o_src[1];
+
+    # no password or none is given, ask fo it
+    if ( NF == 2 ) system("cryptsetup luksOpen " src " " $1);
+    else if (NF == 3 )
     {
-      split(opts[i], para, "=");
-      if ( para[1] == "readonly" ) cmd=cmd "-r ";
-      else if ( para[1] == "cipher" ) cmd=cmd "-c " para[2] " ";
-      else if ( para[1] == "size" ) cmd=cmd "-s " para[2] " ";
-      else if ( para[1] == "hash" ) cmd=cmd "-h " para[2] " ";
-      else if ( para[1] == "offset" ) cmd=cmd "-o " para[2] " ";
-      else if ( para[1] == "skip" ) cmd=cmd "-p " para[2] " ";
-      else if ( para[1] == "tries" ) cmd=cmd "-T " para[2] " ";
-      else if ( para[1] == "verify" ) cmd=cmd "-y ";
-      else if ( para[1] == "discard" ) cmd=cmd "--allow-discards ";
-      else if ( para[1] == "swap" ) makeswap="y";
-      else if ( para[1] == "tmp" ) maketmp="y";
-      else if ( para[1] == "luks" ) useluks="y";
-      else if ( para[1] == "keyscript" ) keyscript=para[2];
-      else if ( para[1] == "keyslot" ) luksparams="--key-slot " para[2] " ";
-      else
-      {
-        print "no valid option " para[1] >"/dev/stderr";
-        cmd="";
-        makeswap="";
-        maketmp="";
-        useluks="";
-        luksparams="";
-        next;
-      }
+        split($3, po, "=");
+        if ( po[1] == "none") system("cryptsetup luksOpen " src " " $1);
+        else system("cryptsetup luksOpen -d " $3 " " src" " $1);
     }
-    if ( makeswap == "y" )
+    else
+    # the option fild is not empty parse the options
     {
-      system("cryptsetup " cmd " -d " $3 " create " $2 " " $1);
-      system("mkswap /dev/mapper/" $1 );
+        split($4, opts, ",");
+        for(i in opts)
+        {
+            split(opts[i], para, "=");
+            if ( para[1] == "readonly" ) cmd=cmd "-r ";
+            else if ( para[1] == "cipher" ) cmd=cmd "-c " para[2] " ";
+            else if ( para[1] == "size" ) cmd=cmd "-s " para[2] " ";
+            else if ( para[1] == "hash" ) cmd=cmd "-h " para[2] " ";
+            else if ( para[1] == "offset" ) cmd=cmd "-o " para[2] " ";
+            else if ( para[1] == "skip" ) cmd=cmd "-p " para[2] " ";
+            else if ( para[1] == "tries" ) cmd=cmd "-T " para[2] " ";
+            else if ( para[1] == "verify" ) cmd=cmd "-y ";
+            else if ( para[1] == "discard" ) cmd=cmd "--allow-discards ";
+            else if ( para[1] == "swap" ) makeswap="y";
+            else if ( para[1] == "tmp" ) maketmp="y";
+            else if ( para[1] == "luks" ) useluks="y";
+            else if ( para[1] == "keyscript" ) keyscript=para[2];
+            else if ( para[1] == "keyslot" ) luksparams="--key-slot " para[2] " ";
+            else
+            {
+                print "no valid option " para[1] >"/dev/stderr";
+                cmd="";
+                makeswap="";
+                maketmp="";
+                useluks="";
+                luksparams="";
+                next;
+            }
+        }
+        if ( makeswap == "y" )
+        {
+            system("cryptsetup " cmd " -d " $3 " create " src " " $1);
+            system("mkswap /dev/mapper/" $1 );
+        }
+        else if ( maketmp == "y" )
+        {
+            system("cryptsetup " cmd " -d " $3 " create " src " " $1"_unformatted");
+            system("mkefs -t ext4 -q /dev/mapper/" $1"_unformatted" );
+            mdir="/run/cryptsetup/" $1;
+            system("mkdir -p " mdir);
+            system("mount /dev/mapper/" $1 "_unformatted  " mdir);
+            system("chmod 1777 " mdir);
+            system("umount " mdir);
+            #system("rmdir" mdir);
+            system("dmsetup rename " $1"_unformated " $1)
+        }
+        else if ( system("cryptsetup isLuks " src ) )
+        {
+            print "options are invalid for LUKS partitions" >"/dev/stderr";
+            system("cryptsetup Open -d " $3 " " src " " $1);
+        }
+        else if (para[1] == "keyscript" )
+        {
+            system( keyscript "| cryptsetup luksOpen -d - " src " " $1);
+        }
+        else print "other" >"/dev/stderr";
     }
-    else if ( maketmp == "y" )
-    {
-      system("cryptsetup " cmd " -d " $3 " create " $2 " " $1"_unformatted");
-      system("mkefs -t ext4 -q /dev/mapper/" $1"_unformatted" );
-      mdir="/run/cryptsetup/" $1;
-      system("mkdir -p " mdir);
-      system("mount /dev/mapper/" $1 "_unformatted  " mdir);
-      system("chmod 1777 " mdir);
-      system("umount " mdir);
-      #system("rmdir" mdir);
-      system("dmsetup rename " $1"_unformated " $1)
-    }
-    else if ( system("cryptsetup isLuks " $2 ) )
-    {
-      print "options are invalid for LUKS partitions" >"/dev/stderr";
-      system("cryptsetup Open -d " $3 " " $2 " " $1);
-    }
-    else if (para[1] == "keyscript" )
-    {
-      system( keyscript "| cryptsetup luksOpen -d - " $2 " " $1);
-    }
-    else print "other" >"/dev/stderr";
-  }
 }
-- 
cgit 1.4.1