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DescriptionRichard W.M. Jones
2011-01-17 17:18:12 UTC
Created attachment 473898[details]
Extract from audit.log
Description of problem:
The attached audit.log is an extract from running the
SELinux in permissive mode whilst running the command
as NON-root:
guestfish -a win2003.iso --ro -m /dev/sda
Version-Release number of selected component (if applicable):
libguestfs-1.7.17-9.el6.x86_64
selinux-policy-targeted-3.7.19-54.el6_0.3.noarch
selinux-policy-3.7.19-54.el6_0.3.noarch
Comment 1Richard W.M. Jones
2011-01-17 17:21:10 UTC
audit2allow is suggesting:
#============= qemu_t ==============
allow qemu_t boot_t:file { read getattr open };
allow qemu_t unconfined_t:unix_stream_socket connectto;
allow qemu_t user_tmp_t:file { read ioctl open };
allow qemu_t user_tmp_t:sock_file write;
Comment 2Richard W.M. Jones
2011-01-17 17:22:58 UTC
libguestfs works by running the following qemu-kvm command.
The command is generated and may be slightly different
each time.
/usr/libexec/qemu-kvm \
-drive file=en_win_srv_2003_r2_enterprise_with_sp2_cd1_X13-05460.iso,snapshot=on,if=virtio \
-nodefconfig \
-enable-kvm \
-nodefaults \
-nographic \
-m 500 \
-no-reboot \
-device virtio-serial \
-serial stdio \
-chardev socket,path=/tmp/libguestfsxJgTAK/sock,id=channel0 \
-device virtserialport,chardev=channel0,name=org.libguestfs.channel.0 \
-kernel /tmp/.guestfs-500/kernel.5197 \
-initrd /tmp/.guestfs-500/initrd.5197 \
-append 'panic=1 console=ttyS0 udevtimeout=300 noapic acpi=off printk.time=1 cgroup_disable=memory selinux=0 guestfs_verbose=1 TERM=xterm ' \
-drive file=/tmp/.guestfs-500/root.5197,snapshot=on,if=virtio,cache=writeback
I think it is probably better to turn the transition off to a confined qemu.
# setsebool -P allow_unconfined_qemu_transition 0
We really do not use this confinement much since we have moved to svirt confinement.
Comment 4Richard W.M. Jones
2011-01-17 19:56:11 UTC
(In reply to comment #3)
> I think it is probably better to turn the transition off to a confined qemu.
>
> # setsebool -P allow_unconfined_qemu_transition 0
>
> We really do not use this confinement much since we have moved to svirt
> confinement.
Is this a suggestion that you want me to try out?
I think on this system I changed this setting. Currently
it is set to:
$ getsebool allow_unconfined_qemu_transition
allow_unconfined_qemu_transition --> on
Yes I want you to turn it off. Therefore qemu will run under the unconfined domain.
Comment 6Richard W.M. Jones
2011-01-17 20:55:28 UTC
That fixes the problem. However I'm fairly sure I turned
this boolean on before for a reason, although I can't recall
what it was now. I guess I'll wait to see if anything breaks.
Created attachment 473898 [details] Extract from audit.log Description of problem: The attached audit.log is an extract from running the SELinux in permissive mode whilst running the command as NON-root: guestfish -a win2003.iso --ro -m /dev/sda Version-Release number of selected component (if applicable): libguestfs-1.7.17-9.el6.x86_64 selinux-policy-targeted-3.7.19-54.el6_0.3.noarch selinux-policy-3.7.19-54.el6_0.3.noarch