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805b5d98c6
According to the 9P spec http://man.cat-v.org/plan_9/5/open about the create request: The names . and .. are special; it is illegal to create files with these names. This patch causes the create and lcreate requests to fail with EINVAL if the file name is either "." or "..". Even if it isn't explicitly written in the spec, this patch extends the checking to all requests that may cause a directory entry to be created: - mknod - rename - renameat - mkdir - link - symlink The unlinkat request also gets patched for consistency (even if rmdir("foo/..") is expected to fail according to POSIX.1-2001). The various error values come from the linux manual pages. Suggested-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Greg Kurz <groug@kaod.org> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Peter Maydell <peter.maydell@linaro.org> |
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| .. | ||
| 9p-handle.c | ||
| 9p-local.c | ||
| 9p-posix-acl.c | ||
| 9p-proxy.c | ||
| 9p-proxy.h | ||
| 9p-synth.c | ||
| 9p-synth.h | ||
| 9p-xattr-user.c | ||
| 9p-xattr.c | ||
| 9p-xattr.h | ||
| 9p.c | ||
| 9p.h | ||
| codir.c | ||
| cofile.c | ||
| cofs.c | ||
| coth.c | ||
| coth.h | ||
| coxattr.c | ||
| Makefile.objs | ||
| trace-events | ||
| virtio-9p-device.c | ||
| virtio-9p.h | ||