gdelugre / ext4-crypt Goto Github PK
View Code? Open in Web Editor NEWUserspace tool to create ext4 encrypted directories.
License: MIT License
Userspace tool to create ext4 encrypted directories.
License: MIT License
/usr/lib/gcc/arm-linux-gnueabihf/4.9/../../../libscrypt.so: undefined reference to `log'
collect2: error: ld returned 1 exit status
CMakeFiles/ext4-crypt.dir/build.make:146: recipe for target 'ext4-crypt' failed
make[2]: *** [ext4-crypt] Error 1
CMakeFiles/Makefile2:67: recipe for target 'CMakeFiles/ext4-crypt.dir/all' failed
make[1]: *** [CMakeFiles/ext4-crypt.dir/all] Error 2
Makefile:127: recipe for target 'all' failed
make: *** [all] Error 2
root@:/project/ext4-crypt# mkdir vault
root@:/project/ext4-crypt# ./ext4-crypt create vault
Enter passphrase:
Confirm passphrase:
Cannot create inode in directory: Operation not permitted
In other words...what can do ext4-crypt which can not be done with"official" e4crypt.
Thanks
Hello,
Firstly, it is unclear whether the directory passed to "ext4-crypt create" needs to already exist. The expectation from a function named "create" is that it does not have to (and will be created by the tool), but apparently not so?
Secondly, it does not work at all even if I create the directory manually.
# ext4-crypt create test
Cannot get filesystem information for test: No such file or directory
Error: test does not belong to an ext4 filesystem.
# mkdir test
# ext4-crypt create test
This filesystem does not support encryption.
Please ensure your kernel has support for CONFIG_EXT4_ENCRYPTION.
# uname -a
Linux hostname 4.9.39-rm1+ #16 SMP Fri Jul 21 15:24:03 +05 2017 x86_64 GNU/Linux
# grep CONFIG_EXT4 /boot/config-4.9.39-rm1+
CONFIG_EXT4_FS=m
CONFIG_EXT4_USE_FOR_EXT2=y
CONFIG_EXT4_FS_POSIX_ACL=y
CONFIG_EXT4_FS_SECURITY=y
CONFIG_EXT4_ENCRYPTION=y
CONFIG_EXT4_FS_ENCRYPTION=y
# CONFIG_EXT4_DEBUG is not set
After most operations, I need to do echo 2 >/proc/sys/vm/drop_caches
otherwise filesystem operations are misleading/incorrect. Can't this operation just be built in? I can't think why people would not want to do this when they're using this (except debugging perhaps?)
f2fs supports the same ioctl() for encryption as ext4, so please add support for this filesystem too. Actual code change is simple:
EXT4_KEY_DESC_PREFIX should be changed from "ext4:" to "f2fs:"
But you also need some user interface change to allow select filesystem.
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