Re: what is needed to test the in-kernel crypto loop?

From: Valdis.Kletnieks@vt.edu
To: Andries.Brouwer@cwi.nl
Cc: ahu@ds9a.nl, linux-kernel@vger.kernel.org
Subject: Re: what is needed to test the in-kernel crypto loop?
Date: Tue, 15 Jul 2003 14:29:39 -0400	[thread overview]
Message-ID: <200307151829.h6FITd43003528@turing-police.cc.vt.edu> (raw)
In-Reply-To: Your message of "Fri, 11 Jul 2003 15:46:55 +0200." <UTC200307111346.h6BDktG25627.aeb@smtp.cwi.nl>

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On Fri, 11 Jul 2003 15:46:55 +0200, Andries.Brouwer@cwi.nl said:

> Try util-linux 2.12, available in 60 hours.

(using this version from ftp.kernel.org/pub/linux/utils/util-linux:
-rw-r--r--   1 korg     korg      1285674   Jul 13 22:09   util-linux-2.12pre.tar.bz2

Umm.. OK... I'll bite.  How do I get 2.12pre to actually use cryptoloop?

losetup -e aes /dev/loop yadd yadda says 'Unknown encryption type aes',
mostly because of this code in lomount.c:

struct crypt_type_struct {
        int id;
        char *name; 
} crypt_type_tbl[] = { 
        { LO_CRYPT_NONE, "no" },
        { LO_CRYPT_NONE, "none" },
        { LO_CRYPT_XOR, "xor" },
        { LO_CRYPT_DES, "DES" },
        { -1, NULL   }          
};                      

static int      
crypt_type (const char *name) {
        int i;

        if (name) {
                for (i = 0; crypt_type_tbl[i].id != -1; i++)
                        if (!strcasecmp (name, crypt_type_tbl[i].name))
                                return crypt_type_tbl[i].id;
        }
        return -1;
}

none, xor, DES.  Those are the choices - and yes, aes.o is built and in-kernel.

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