qemu/hw/9pfs
Greg Kurz f57f587857 9pfs: local: resolve special directories in paths
When using the mapped-file security mode, the creds of a path /foo/bar
are stored in the /foo/.virtfs_metadata/bar file. This is okay for all
paths unless they end with '.' or '..', because we cannot create the
corresponding file in the metadata directory.

This patch ensures that '.' and '..' are resolved in all paths.

The core code only passes path elements (no '/') to the backend, with
the notable exception of the '/' path, which refers to the virtfs root.
This patch preserves the current behavior of converting it to '.' so
that it can be passed to "*at()" syscalls ('/' would mean the host root).

Signed-off-by: Greg Kurz <groug@kaod.org>
Reviewed-by: Eric Blake <eblake@redhat.com>
2017-05-25 10:30:14 +02:00
..
9p-handle.c 9pfs: assume utimensat() and futimens() are present 2017-05-25 10:30:14 +02:00
9p-local.c 9pfs: local: resolve special directories in paths 2017-05-25 10:30:14 +02:00
9p-local.h 9pfs: local: open/opendir: don't follow symlinks 2017-02-28 11:21:15 +01:00
9p-posix-acl.c 9pfs: local: lremovexattr: don't follow symlinks 2017-02-28 11:21:15 +01:00
9p-proxy.c 9pfs: proxy: assert if unmarshal fails 2017-03-21 09:12:47 +01:00
9p-proxy.h Clean up ill-advised or unusual header guards 2016-07-12 16:20:46 +02:00
9p-synth.c 9p: synth: drop v9fs_ prefix 2016-07-01 14:38:54 +02:00
9p-synth.h 9pfs: fsdev: drop useless extern annotation for functions 2016-10-17 14:13:58 +02:00
9p-util.c 9pfs: local: lgetxattr: don't follow symlinks 2017-02-28 11:21:15 +01:00
9p-util.h 9pfs: fix vulnerability in openat_dir() and local_unlinkat_common() 2017-03-06 17:34:01 +01:00
9p-xattr-user.c 9pfs: local: lremovexattr: don't follow symlinks 2017-02-28 11:21:15 +01:00
9p-xattr.c 9pfs: xattr: fix memory leak in v9fs_list_xattr 2017-04-10 09:38:05 +02:00
9p-xattr.h 9pfs: local: lremovexattr: don't follow symlinks 2017-02-28 11:21:15 +01:00
9p.c 9pfs: check return value of v9fs_co_name_to_path() 2017-05-25 10:30:14 +02:00
9p.h virtio-9p/xen-9p: move 9p specific bits to core 9p code 2017-05-25 10:30:13 +02:00
codir.c 9pfs: use coroutine_fn annotation in hw/9pfs/co*.[ch] 2016-10-17 14:13:58 +02:00
cofile.c fsdev: add IO throttle support to fsdev devices 2017-02-28 10:31:46 +01:00
cofs.c 9pfs: use coroutine_fn annotation in hw/9pfs/co*.[ch] 2016-10-17 14:13:58 +02:00
coth.c coroutine: move entry argument to qemu_coroutine_create 2016-07-13 13:26:02 +02:00
coth.h 9pfs: use coroutine_fn annotation in hw/9pfs/co*.[ch] 2016-10-17 14:13:58 +02:00
coxattr.c 9pfs: use coroutine_fn annotation in hw/9pfs/co*.[ch] 2016-10-17 14:13:58 +02:00
Makefile.objs xen/9pfs: build and register Xen 9pfs backend 2017-04-25 11:04:33 -07:00
trace-events 9pfs: limit xattr size in xattrcreate 2016-11-01 12:03:02 +01:00
virtio-9p-device.c virtio-9p/xen-9p: move 9p specific bits to core 9p code 2017-05-25 10:30:13 +02:00
virtio-9p.h 9pfs: introduce transport specific callbacks 2017-01-03 17:28:44 +01:00
xen-9p-backend.c virtio-9p/xen-9p: move 9p specific bits to core 9p code 2017-05-25 10:30:13 +02:00
xen-9pfs.h xen/9pfs: introduce Xen 9pfs backend 2017-04-25 11:04:28 -07:00