Bug#995135: CryFS Conan build requirement

[Sebastian Messmer]

This may help: https://github.com/cryfs/cryfs#using-local-dependencies
It should, in theory, allow building by getting the dependencies from the 
local system instead of from Conan.


On September 26, 2021 2:39:10 PM David Steele  wrote:


Package: cryfs
severity: important
thanks


CryFS 0.11.0 is asking for conan to be present for the build. Conan is
not available in Debian, and provides a service that should not be
necessary in any case.

Resolve the CryFS build for 0.11.0-1.

Bug#876432: cryfs: does not honor noatime mount option

[Sebastian Messmer]

Thanks for reporting. This is due to fuse not passing through the 
noatime parameter to the filesystem implementation, so CryFS can't 
figure out whether noatime is enabled or not. However, to alleviate the 
problem a bit, the default behavior of CryFS will be switched from 
strictatime to relatime in the upcoming 0.10 release series.


On 22/09/17 08:56, Kiko Piris wrote:

Package: cryfs
Version: 0.9.7-2
Severity: normal

If the cryfs filesystem is mounted with noatime, it should not modify files’
access times when they are read:

$ mount | grep cryfs
cryfs@/home/kiko/Dropbox/safe/.cryfs on /home/kiko/Dropbox.safe type fuse.cryfs 
(rw,nosuid,nodev,noatime,user_id=1000,group_id=1000,allow_other)

  ^^^

$ stat Dropbox.safe/.placeholder
   File: Dropbox.safe/.placeholder
   Size: 60 Blocks: 0  IO Block: 16384  regular file
Device: 2fh/47d Inode: 41  Links: 1
Access: (0600/-rw---)  Uid: ( 1000/kiko)   Gid: ( 1000/kiko)
Access: 2017-09-22 09:30:51.261363123 +0200
 ^^^
Modify: 2010-06-10 10:38:53.0 +0200
Change: 2017-09-20 19:17:16.072335331 +0200
  Birth: -

$ cat Dropbox.safe/.placeholder
# DO NOT EDIT OR REMOVE
# This file is a simple placeholder

$ stat Dropbox.safe/.placeholder
   File: Dropbox.safe/.placeholder
   Size: 60 Blocks: 0  IO Block: 16384  regular file
Device: 2fh/47d Inode: 41  Links: 1
Access: (0600/-rw---)  Uid: ( 1000/kiko)   Gid: ( 1000/kiko)
Access: 2017-09-22 09:48:34.843560115 +0200
 ^^^
Modify: 2010-06-10 10:38:53.0 +0200
Change: 2017-09-20 19:17:16.072335331 +0200
  Birth: -


Obviously, the corresponding block file in the encrypted directory also gets
modified (and needlesly synced to Dropbox).

Thanks.