tcplay is a BSD-licensed command-line TrueCrypt implementation that uses dm-crypt: https://github.com/bwalex/tc-play I've had luck compiling it on Gentoo and using it to mount TrueCrypt-encrypted NTFS partitions. The only alternative right now, TrueCrypt, has a more-restrictive license and a fetch restriction.
I've added a version to my overlay (layman -a xmw) for now [1], the library does build [2], I have no chance to test the functionality. The Makefiles lists -ldevmapper -luuid which doesn't end up in the final program. [1] http://git.overlays.gentoo.org/gitweb/?p=dev/xmw.git;a=commit;h=6fcdabb157099b0b0fad3e841b9ef64f8173f0c5 [2] https://github.com/bwalex/tc-play/issues/12
Not sure this is the right place for build issues, but here goes. I tried this on a mostly-stable amd64 system. It doesn't compile with the following error: >>> Compiling source in /var/tmp/portage/app-crypt/tcplay-0.10-r1/work/tcplay-0.10 ... make -j 6 -l 4.0 SYSTEM=linux PBKDF_BACKEND=gcrypt program lib x86_64-pc-linux-gnu-gcc -O2 -march=native -mtune=native -pipe -fomit-frame-pointer -Wsystem-headers -Werror -Wall -W -Wno-unused-parameter -Wstrict-prototypes -Wmissing-prototypes -Wpointer-arith -Wold-style-definition -Wreturn-type -Wcast-qual -Wwrite-strings -Wswitch -Wshadow -Wcast-align -Wunused-parameter -Wchar-subscripts -Winline -Wnested-externs -D_GNU_SOURCE -o tcplay main.c tcplay.c crc32.c safe_mem.c io.c hdr.c humanize.c crypto.c generic_xts.c crypto-gcrypt.c pbkdf2-gcrypt.c -lgcrypt -ldevmapper -luuid -Wl,-O1 -Wl,--as-needed cc1: warnings being treated as errors io.c: In function ‘read_passphrase’: io.c:388:3: error: signed and unsigned type in conditional expression io.c:388:3: error: signed and unsigned type in conditional expression make: *** [program] Error 1 This is because the supplied Makefile has -Werror in the CFLAGS, which is not a good idea. The error comes from a line which looks like this: FD_SET(fd, &fds); i.e. is inside a macro, whose man page doesn't indicate a problem. Extending the sed invocation to remove the -Werror flag solved the compilation problem. The resulting binary works fine on a FAT32 volume in a file once you read the man page on how to use losetup to make it into a device. Also passed as an upstream issue at https://github.com/bwalex/tc-play/issues/13
Created attachment 329566 [details, diff] ebuild updated to filter -Werror and check for required kernel modules I have now used this successfully on amd64 and x86 to access FAT32 encrypted volume in a file via the loopback device (as per docs). This required getting all the required modules into the kernel configuration, I simply added all the ones listed here: http://en.gentoo-wiki.com/wiki/TrueCrypt#Requirements Checks for all of these are now in the ebuild to avoid others getting the inscrutable errors that occur if the required modules are not available at runtime.
Created attachment 334566 [details] tcplay-0.11.ebuild
Created attachment 354276 [details] tcplay-1.1_pre20130629.ebuild Here's an updated version for tcplay-1.x It uses cmake-utils to install and tries to make tests work. Unfortunately they need root privileges and not every test is successfull. Also available via my overlay, see: https://git.overlays.gentoo.org/gitweb/?p=user/mrueg.git;a=commit;h=81eb7309add99bd11256f8de2b7ae7b25932c363 Feel free to test and report if it's working!
Hi, I really much prefer to use the classic make and not cmake. Opened[1], hope these issues will be addressed. Anyway, will wait until 1.1 release. Thanks, [1] https://github.com/bwalex/tc-play/issues/38
tc-play-1.1 in tree.
