Commit Graph

5 Commits

Author SHA1 Message Date
Sergio Lopez
b7faf4fdc1 vhost_user_fs: Add the WRITE_KILL_PRIV write flag.
Add the WRITE_KILL_PRIV write flag, corresponding to
FUSE_WRITE_KILL_PRIV introduced in 7.31, and use to only remove the
setuid and setgid bits (by switching credentials) conditionally.

Signed-off-by: Sergio Lopez <slp@redhat.com>
2020-04-17 15:42:40 +01:00
Sergio Lopez
97e2d5d266 vhost_user_fs: Add support for CopyFileRange
Add support for the CopyFileRange request, introduced in FUSE 7.28.

Signed-off-by: Sergio Lopez <slp@redhat.com>
2020-04-17 15:42:40 +01:00
Sergio Lopez
c821e96e2a vhost_user_fs: Implement support for FUSE_LSEEK
Implement missing support for FUSE_LSEEK, which basically implies
calling to libc::lseek on the file handle. As this operation alters
the file offset, we take a write lock on the File's RwLock.

Signed-off-by: Sergio Lopez <slp@redhat.com>
2020-03-18 18:15:28 +00:00
Liu Bo
3f09eff6c5 vhost_user_fs: add fs cache request operations
This introduces setupmapping and removemapping methods to server.rs,
passthrough.rs and filesystem.rs in order to support virtiofs dax mode
inside guest.

Since we don't really want the server.rs to know that it is dealing with
vhost-user specifically, this is making it more generic by adding a new
trait which has three functions map()/unmap()/sync() corresponding to
fs_slave_{map, unmap, sync}, server.rs will take anything that implements
the trait.

Signed-off-by: Liu Bo <bo.liu@linux.alibaba.com>
2020-02-19 07:52:50 +00:00
Sebastien Boeuf
1b76c0a183 vhost_user_fs: Add FileSystem trait
Add the `Filesystem` trait, which is the main interface between the
transport and the actual file system implementation.

This code has been ported over from crosvm commit
961461350c0b6824e5f20655031bf6c6bf6b7c30.

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
2019-11-22 22:17:47 +01:00