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 <rjones@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> [eblake: rebase to configure changes, reject --selinux-label if it is not compiled in or not used on a Unix socket] Note that we may relax some of these restrictions at a later date, such as making it possible to label a TCP socket, although it may be smarter to do so as a generic QMP action rather than more one-off command lines in qemu-nbd. Signed-off-by: Eric Blake <eblake@redhat.com> Message-Id: <20211115202944.615966-1-eblake@redhat.com> Reviewed-by: Thomas Huth <thuth@redhat.com> [eblake: adjust meson output as suggested by thuth] Signed-off-by: Eric Blake <eblake@redhat.com>
118 lines
2.2 KiB
Docker
118 lines
2.2 KiB
Docker
FROM docker.io/library/ubuntu:18.04
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ENV PACKAGES \
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bc \
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bsdmainutils \
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bzip2 \
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ca-certificates \
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ccache \
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clang \
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dbus \
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debianutils \
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diffutils \
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exuberant-ctags \
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findutils \
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g++ \
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gcc \
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gcovr \
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genisoimage \
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gettext \
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git \
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glusterfs-common \
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hostname \
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libaio-dev \
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libasan5 \
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libasound2-dev \
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libattr1-dev \
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libbrlapi-dev \
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libbz2-dev \
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libc6-dev \
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libcacard-dev \
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libcap-ng-dev \
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libcapstone-dev \
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libcurl4-gnutls-dev \
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libdaxctl-dev \
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libdrm-dev \
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libepoxy-dev \
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libfdt-dev \
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libffi-dev \
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libgbm-dev \
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libgcrypt20-dev \
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libglib2.0-dev \
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libgnutls28-dev \
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libgtk-3-dev \
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libibverbs-dev \
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libiscsi-dev \
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libjemalloc-dev \
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libjpeg-turbo8-dev \
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liblttng-ust-dev \
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liblzo2-dev \
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libncursesw5-dev \
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libnfs-dev \
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libnuma-dev \
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libpam0g-dev \
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libpixman-1-dev \
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libpmem-dev \
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libpng-dev \
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libpulse-dev \
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librbd-dev \
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librdmacm-dev \
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libsasl2-dev \
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libsdl2-dev \
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libsdl2-image-dev \
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libseccomp-dev \
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libselinux-dev \
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libsnappy-dev \
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libspice-protocol-dev \
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libspice-server-dev \
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libssh-dev \
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libsystemd-dev \
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libtasn1-6-dev \
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libtest-harness-perl \
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libubsan1 \
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libudev-dev \
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libusb-1.0-0-dev \
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libusbredirhost-dev \
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libvdeplug-dev \
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libvirglrenderer-dev \
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libvte-2.91-dev \
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libxen-dev \
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libxml2-dev \
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libzstd-dev \
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llvm \
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locales \
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make \
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multipath-tools \
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netcat-openbsd \
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nettle-dev \
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ninja-build \
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openssh-client \
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perl-base \
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pkgconf \
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python3 \
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python3-numpy \
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python3-opencv \
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python3-pillow \
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python3-pip \
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python3-setuptools \
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python3-sphinx \
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python3-sphinx-rtd-theme \
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python3-venv \
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python3-wheel \
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python3-yaml \
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rpm2cpio \
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sed \
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sparse \
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systemtap-sdt-dev \
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tar \
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tesseract-ocr \
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tesseract-ocr-eng \
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texinfo \
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xfslibs-dev \
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zlib1g-dev
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RUN apt-get update && \
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DEBIAN_FRONTEND=noninteractive apt-get -y install $PACKAGES
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RUN dpkg -l $PACKAGES | sort > /packages.txt
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# https://bugs.launchpad.net/qemu/+bug/1838763
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ENV QEMU_CONFIGURE_OPTS --disable-libssh
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