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[Qemu-devel] [PATCH v4 0/1] 9pfs: local: Add support for custom fmode/dm


From: Tobias Schramm
Subject: [Qemu-devel] [PATCH v4 0/1] 9pfs: local: Add support for custom fmode/dmode in 9ps mapped security modes
Date: Mon, 19 Jun 2017 16:28:47 +0200

Hi,

i've noticed that there is no way to control the permissions of newly created 
files and
folders on the host when using 9p in mapped security mode. This can be a big 
problem when
configuring permissions for access to such data for groups and via ACLs on the 
host.
Thus I added the options fmode and dmode to the fsdev and virtfs options that 
set the actual
permissions of newly created files and folders on the host.

This version of the patch fixes the back to front "mask" naming in the previous 
patches. I
always meant "mode" when actually writing "mask".

Also specifying fmode and dmode only has an effect in mapped security modes. 
Specifying it
in any other mode now throws an error.

Additionally I've switched fmode and dmode to QEMU_OPT_NUMBER because it 
handels octal input
just fine.

Also previous versions leaked a string with g_strdup if an error during parsing 
of fmode/dmode
occurred.

Thanks to Greg Kurz for pointing out most of the above issues to me.

Tobias Schramm

Tobias Schramm (1):
  Add support for custom fmode/dmode in 9ps mapped security modes

 fsdev/file-op-9p.h      |  4 ++++
 fsdev/qemu-fsdev-opts.c | 12 ++++++++++++
 hw/9pfs/9p-local.c      | 34 +++++++++++++++++++++++++---------
 hw/9pfs/9p.c            |  3 +++
 qemu-options.hx         | 20 ++++++++++++++++----
 5 files changed, 60 insertions(+), 13 deletions(-)

-- 
2.13.1




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