Am 23.07.2021 um 12:33 hat Richard W.M. Jones geschrieben: > Under SELinux, Unix domain sockets have two labels. One is on the > disk and can be set with commands such as chcon(1). There is a > different label stored in memory (called the process label). This can > only be set by the process creating the socket. When using SELinux + > SVirt and wanting qemu to be able to connect to a qemu-nbd instance, > you must set both labels correctly first. > > For qemu-nbd the options to set the second label are awkward. You can > create the socket in a wrapper program and then exec into qemu-nbd. > Or you could try something with LD_PRELOAD. > > This commit adds the ability to set the label straightforwardly on the > command line, via the new --selinux-label flag. (The name of the flag > is the same as the equivalent nbdkit option.) > > A worked example showing how to use the new option can be found in > this bug: https://bugzilla.redhat.com/show_bug.cgi?id=1984938 > > Fixes: https://bugzilla.redhat.com/show_bug.cgi?id=1984938 > Signed-off-by: Richard W.M. Jones <[email protected]>
I suppose this would also be relevant for the built-in NBD server, especially in the context of qemu-storage-daemon? If so, is this something specific to NBD sockets, or would it actually make sense to have it as a generic option in UnixSocketAddress? Kevin
