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hw/9pfs: Add new security model mapped-file.
This enable us to do passthrough equivalent security model on NFS directory.NFS server mostly do root squashing and don't support xattr. Hence we cannotuse 'passthrough' or 'mapped' security model
Also added "mapped-xattr" security to indicate earlier "mapped" security model...
hw/9pfs: Add support to use named socket for proxy FS
Add option to use named socket for communicating between proxy helperand qemu proxy FS. Access to socket can be given by using command lineoptions -u and -g.
Signed-off-by: M. Mohan Kumar <mohan@in.ibm.com>...
hw/9pfs: Move opt validation to FsDriver callback
This remove all conditional code from common code path andmake opt validation a FSDriver callback.
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
hw/9pfs: Use the correct signed type for different variables
hw/9pfs: Use the correct file descriptor in Fsdriver Callback
Fsdriver callback that operate on file descriptor need todifferentiate between directory fd and file fd.
Based on the original patch from Sassan Panahinejad <sassan@sassan.me.uk>
hw/9pfs: Read-only support for 9p export
A new fsdev parameter "readonly" is introduced to control accessing 9p export."readonly" can be used to specify the access type. By default "rw" accessis given to 9p export.
hw/9pfs: Abstract open state of fid to V9fsFidOpenState
To implement synthetic file system in Qemu we may not reallyrequire file descriptor and Dir *. Make generic code useV9fsFidOpenState instead.
hw/9pfs: Add st_gen support in getattr reply
This patch use file system specific ioctl for getting i_generationvalue. Not all file system support the ioctl. So we add an exportspecific extended operation and assign right callback for thefile system that support i_generation ioctl...
hw/9pfs: Use export_flag for indicating whether fs driver use path names.
This allows us to remove another member from the struct
hw/9pfs: Use export flag for indicating security model
This helps to remove some of the structure members
hw/9pfs: Add new virtfs option writeout=immediate skip host page cache
writeout=immediate implies the after pwritev we do a sync_file_range.
Reviewed-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
hw/9pfs: Move fid pathname tracking to seperate data type.
This enables us to add handles to track fids later. TheV9fsPath added is similar to V9fsString except that thesize include the NULL byte also.
hw/9pfs: Add init callback to fs driver
This call back can be used to do fs driver specific initialization.
hw/9pfs: Add fs driver specific details to fscontext
Add a new context flag PATHNAME_FSCONTEXT and indicate whetherthe fs driver track fid using path names. Also add a privatepointer that help us to track fs driver specific values in there
use readdir_r instead of readdir for reentrancy
Signed-off-by: Harsh Prateek Bora <harsh@linux.vnet.ibm.com>Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
[virtio-9p] Make rpath thread safe
Current rpath inline function is heavily used in all system calls.This function has a static buffer making it a non-thread safe function.This patch introduces new thread-safe routine and makes use of it.
Signed-off-by: Venkateswararao Jujjuri "<jvrao@linux.vnet.ibm.com>
virtio-9p: move 9p files around
Now that we start adding more files related to 9pfsit make sense to move them to a separate directory
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>Signed-off-by: Venkateswararao Jujjuri <jvrao@linux.vnet.ibm.com>