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</o:shapelayout></xml><![endif]--></head><body lang=IT link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Hi there,<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><span lang=EN-US>I’m a beginner of SELinux and i’m trying to implement “type_transition” (process mode), this is my rules:<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>###### TYPE TRANSITION FOR lvm_t ############################<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>role diskadm_role_r types lvm_t;<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>type_transition diskadm_role_t lvm_exec_t : process lvm_t;<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>allow diskadm_role_t lvm_exec_t : file { getattr read open execute};<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>allow diskadm_role_t lvm_t: process transition;<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>#########################################################<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>But when I launch lvm commands, for example “lvdisplay” I receive this message:<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>###############################################################<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>bash-4.1# lvdisplay<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>lvdisplay: error while loading shared libraries: /lib64/ld-linux-x86-64.so.2: cannot apply additional memory protection after relocation: Permission denied<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>###############################################################<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>I go to see in audit.log, and i’ve these avc-denied:<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>###############################################################<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>type=AVC msg=audit(1361254531.179:7044668): avc: denied { sigchld } for pid=3968 comm="bash" scontext=ssh_role_u:diskadm_role_r:lvm_t:s0 tcontext=ssh_role_u:diskadm_role_r:diskadm_role_t:s0 tclass=process<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>###############################################################<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>I should create only a new rule for “allow lvm_t diskadm_role_t: process sigchild”, but there is a good reason because I must allow this? I’m reading/studing a guide for “type_transition” in "SELinux By Example book" and in this link: <a href="http://selinuxproject.org/page/TypeRules">http://selinuxproject.org/page/TypeRules</a> but i don’t see anything about “sigchild” and it’s not highlighted nowhere as requirement for "type_transition" rule.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>Thanks in advance,<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>Maurizio Pagani<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p></div></body></html>