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wiki:experiences:igraltist:kvm_guest_jail [2009/07/18 00:00]
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wiki:experiences:igraltist:kvm_guest_jail [2011/01/07 14:39]
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 +  
 +  
 +  
 +====== Start kvmguest with rsbac_jail ======  
 +Based on the [[wiki:​experiences/​igraltist/​run-jail#run-jail|run-jail]] script and [[wiki:experiences/igraltist/kvm#kvm-admin|kvm-admin]] i do this.  
 +  
 +===== kvm-jail-config =====  
 +<code bash>  
 +;  
 +; 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)  
 +</​code>​  
 +  
 +  
 +  
 +  
 +  
 +  
 +  
 + 
 +===== start kvm-guest =====  
 +See on this [[wiki:experiences/igraltist/kvm#example kvm-guest-config|example kvm-guest-config]] the content from file.   
 +  
 +<code bash>  
 +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'​]  
 +</​code>​  
 +\\  
 +Now I start a guest.   
 +<code bash>  
 +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.)  
 +</code>  
 +  
 +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.   
 +<code bash>  
 +brctl addif dmz_bridge vserver  
 +ifconfig vserver up  
 +</code>  
 +  
 +This I see in the rsbac-log, but the guest is running.   
 +<code bash>  
 +<​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  
 +</code>  
 +  
 +  
 +  
 +  
 +  
 +  
 +===== show-jail-info =====  
 +Do this:   
 +<code bash>​cat ​/proc/rsbac-info/​jail</​code>​  
 +  
 +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.  
 +\\  
 +<code bash>  
 +./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.   
 +</​code>​  
 +Fixme: convert numbers in readable names.  
 +  
 +[[wiki:​experiences/​igraltist/​kvm_guest_jail#​Start kvmguest ​with rsbac_jail|Top]]  
 +  
 + 
 +  
 +  
//
wiki/experiences/igraltist/kvm_guest_jail.txt · Last modified: 2011/01/07 14:39 by 127.0.0.1

wiki/experiences/igraltist/kvm_guest_jail.txt · Last modified: 2011/01/07 14:39 by 127.0.0.1
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