3d212b41e9
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>
113 lines
2.2 KiB
Docker
113 lines
2.2 KiB
Docker
FROM docker.io/centos:8
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RUN dnf -y update
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ENV PACKAGES \
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SDL2-devel \
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alsa-lib-devel \
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bc \
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brlapi-devel \
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bzip2 \
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bzip2-devel \
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ca-certificates \
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capstone-devel \
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ccache \
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clang \
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ctags \
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cyrus-sasl-devel \
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daxctl-devel \
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dbus-daemon \
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device-mapper-multipath-devel \
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diffutils \
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findutils \
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gcc \
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gcc-c++ \
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genisoimage \
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gettext \
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git \
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glib2-devel \
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glibc-langpack-en \
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glibc-static \
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glusterfs-api-devel \
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gnutls-devel \
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gtk3-devel \
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hostname \
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jemalloc-devel \
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libaio-devel \
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libasan \
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libattr-devel \
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libbpf-devel \
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libcacard-devel \
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libcap-ng-devel \
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libcurl-devel \
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libdrm-devel \
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libepoxy-devel \
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libfdt-devel \
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libffi-devel \
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libgcrypt-devel \
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libiscsi-devel \
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libjpeg-devel \
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libnfs-devel \
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libpmem-devel \
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libpng-devel \
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librbd-devel \
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libseccomp-devel \
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libselinux-devel \
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libslirp-devel \
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libssh-devel \
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libtasn1-devel \
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libubsan \
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libudev-devel \
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libusbx-devel \
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libxml2-devel \
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libzstd-devel \
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llvm \
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lzo-devel \
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make \
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mesa-libgbm-devel \
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ncurses-devel \
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nettle-devel \
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ninja-build \
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nmap-ncat \
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numactl-devel \
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openssh-clients \
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pam-devel \
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perl \
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perl-Test-Harness \
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pixman-devel \
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pkgconfig \
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pulseaudio-libs-devel \
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python3 \
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python3-PyYAML \
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python3-numpy \
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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-virtualenv \
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python3-wheel \
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rdma-core-devel \
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rpm \
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sed \
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snappy-devel \
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spice-protocol \
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spice-server-devel \
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systemd-devel \
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systemtap-sdt-devel \
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tar \
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texinfo \
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usbredir-devel \
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util-linux \
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virglrenderer-devel \
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vte291-devel \
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which \
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xfsprogs-devel \
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zlib-devel
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RUN dnf install -y dnf-plugins-core && \
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dnf config-manager --set-enabled powertools && \
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dnf install -y centos-release-advanced-virtualization && \
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dnf install -y epel-release && \
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dnf install -y $PACKAGES
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RUN rpm -q $PACKAGES | sort > /packages.txt
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