Back to igraltist's experiences/KVM on RSBAC
; ; RSBAC JAIL definition for kvm ; 20080507 ; ; Tested by igraltist ; "" "0.0.0.0" (allow-dev-read allow-dev-write allow-ipc-syslog allow-ipc-parent allow-inet-raw allow-all-net-family) (net-raw setgid setuid dac-override net-admin dac-read-search sys-resource sys-module) () (rlimit)
See on this example kvm-guest-config the content from file.
kvm-admin start example uid=1003(kvm) gid=1003(kvm) Gruppen=1003(kvm),6(disk),85(usb) [Errno 2] No such file or directory: '/vmserver/qemu.img' Using already existing Tap device. Setting up tun-tap-device, done .... The follow command would be executing: ['run-jail', 'kvm', '/usr/local/kvm/72/bin/qemu-system-x86_64', '-cdrom', '/usr/src/ISOS/debian-40r3-i386-netinst.iso', '-net', 'nic,vlan=0,macaddr=A9:B9:C9:D9:E9:F0,model=rtl8139', -net', 'tap,vlan=0,ifname=iface_test,script=/etc/kvm/scripts/kvm-dmz-ifup', '-vnc', ':4', '-m', '265', '-boot', 'd', '-k', 'en-us', '-pidfile', '/var/run/kvm/example.pid', '-smp', '2', '-L', '/usr/local/kvm/72/share/qemu', '-usb', '-usbdevice', 'tablet', '-name', 'example', '-no-fd-bootchk', '-daemonize', '-std-vga', '-localtime']
Now I start a guest.
kvm-admin start vserver uid=1003(kvm) gid=1003(kvm) Gruppen=1003(kvm),6(disk),85(usb) SIOCSIFADDR: Die Operation ist nicht erlaubt SIOCSIFFLAGS: Die Operation ist nicht erlaubt SIOCSIFFLAGS: Die Operation ist nicht erlaubt SIOCSIFFLAGS: Die Operation ist nicht erlaubt can't add vserver to bridge eth1: Operation not permitted (if it already there: device vserver is already a member of a bridge; can't enslave it to bridge eth1.)
If we must add the tap-device = vserver manually to the bridge.
In the example is the bridge name dmz_bridge and the tun-tap device name is vserver.
brctl addif dmz_bridge vserver
ifconfig vserver up
This I see in the rsbac-log, but the guest is running.
<6>0000001281|rsbac_adf_request(): request BIND, pid 3706, ppid 3705, prog_name ifconfig, prog_file /sbin/ifconfig, uid 0, audit uid 1003, remote ip 192.168.1.5, target_type NETDEV, tid vserver, attr none, value none, result NOT_GRANTED by JAIL <6>0000001282|rsbac_adf_request(): request MODIFY_SYSTEM_DATA, pid 3706, ppid 3705, prog_name ifconfig, prog_file /sbin/ifconfig, uid 0, audit uid 1003, remote ip 192.168.1.5, target_type NETDEV, tid vserver, attr none, value none, result NOT_GRANTED by JAIL <6>0000001283|rsbac_adf_request(): request MODIFY_SYSTEM_DATA, pid 3706, ppid 3705, prog_name ifconfig, prog_file /sbin/ifconfig, uid 0, audit uid 1003, remote ip 192.168.1.5, target_type NETDEV, tid vserver, attr none, value none, result NOT_GRANTED by JAIL <6>0000001284|rsbac_adf_request(): request MODIFY_SYSTEM_DATA, pid 3706, ppid 3705, prog_name ifconfig, prog_file /sbin/ifconfig, uid 0, audit uid 1003, remote ip 192.168.1.5, target_type NETDEV, tid vserver, attr none, value none, result NOT_GRANTED by JAIL <6>0000001285|rsbac_adf_request(): request MODIFY_SYSTEM_DATA, pid 3707, ppid 3705, prog_name brctl, prog_file /sbin/brctl, uid 0, audit uid 1003, remote ip 192.168.1.5, target_type NETDEV, tid eth1, attr none, value none, result NOT_GRANTED by JAIL
Do this:
cat /proc/rsbac-info/jail
or you can use this:
http://svn.kasten-edv.de/svn/rsbac/trunk/bin/ps-jail.py
I get this output. Its very similar to the above.
./ps-jail.py Loading Jail info for Processes, done. -------------------------------------------------------------------------------- Processname Pid Jail-ID Flags Max-caps SCD-get SCD-mod Jail-IP ntpd 7337 7 1539 50349250 0 6291491 0.0.0.0 dmeventd 7281 6 1537 -1 0 2113536 0.0.0.0 cupsd 7103 3 1546 -1 0 32 0.0.0.0 dhcpd 7224 5 67083 271555 0 0 0.0.0.0 pickup 3286 8 67073 -1 0 32 0.0.0.0 qemu-system-x86 3704 28 71178 16855238 0 32 0.0.0.0 master 7441 8 67073 -1 0 32 0.0.0.0 smbd 7560 10 1538 17302752 0 32 0.0.0.0 qemu-system-x86 29614 26 71178 16855238 0 32 0.0.0.0 qmgr 7448 8 67073 -1 0 32 0.0.0.0 nmbd 7561 11 1538 17302752 0 32 0.0.0.0 syslog-ng 11370 13 40448 -1 0 0 0.0.0.0 cron 11428 14 71168 -1 0 32 0.0.0.0 pdnsd 12945 16 71176 17310912 262144 16416 0.0.0.0 qemu-system-x86 25748 23 71178 16855238 0 32 0.0.0.0 qemu-system-x86 26053 24 71178 16855238 0 32 0.0.0.0 portmap 6242 2 1537 -1 0 0 0.0.0.0 smbd 7556 10 1538 17302752 0 32 0.0.0.0 -------------------------------------------------------------------------------- It took 0.94s seconds.
Fixme: convert numbers in readable names.