On 06/25/2010 12:11 PM, Alice Mynona wrote: > Stephen Smalley schrieb am 24.06.2010 19:33 Uhr: >> On Thu, 2010-06-24 at 13:12 -0400, Stephen Smalley wrote: >>> On Thu, 2010-06-24 at 17:01 +0200, Alice Mynona wrote: >>>> Hello, >>>> >>>> during the developing of a SELinux module I got the following error messages when executing "audit2allow -a -l" >>>> >>>> ... >>>> libsepol.context_from_record: type antivirus_t is not defined >>>> libsepol.context_from_record: could not create context structure >>>> libsepol.context_from_string: could not create context structure >>>> libsepol.sepol_context_to_sid: could not convert unconfined_u:unconfined_r:antivirus_t:s0 to sid >>>> >>>> "antivirus_t" is a domain I have defined in my module: >>>> >>>> type antivirus_t; >>>> domain_type(antivirus_t) >>>> >>>> I have already removed the module (semodule -r antivirus.pp && semodule -R) and did a file context repair afterwards (fixfiles restore). The error still exists. >>>> >>>> I have reinstalled the policy (yum reinstall selinux-policy-*), but the problem remains. I have also taken a look at "file_contexts" (cd /etc/selinux/targeted/modules/active && grep antivirus_t file_contexts*), but there's no "antivirus_t" anymore. >>>> >>>> Can you help me to find the cause of the problem? I don't know how to debug libsepol-messages. >>>> >>>> I'm using "selinux-policy-targeted-3.6.32-118.fc12.noarch". >>> >>> Sounds like the -l option to audit2allow isn't working correctly, so >>> that instead of only processing audit messages since the last policy >>> reload, you are still processing the audit messages from when that >>> policy module was installed, and unsurprisingly it cannot map those >>> contexts since you removed the module. That would be a bug in >>> audit2allow/sepolgen. >>> >>> Workaround would be to use ausearch to select the desired range of >>> messsages specifically, e.g. >>> /sbin/ausearch -m AVC -ts today | audit2allow >> > > I did a reload today at 08:36:00 a.m. (semodule -R). Round about two and half hours later I checked the auditlog: > > ausearch -m AVC --start 25.06.2010 08:36:00 --end 25.06.2010 11:00:00 > > Only messages from ssh_t (success=yes). Fine. But "audit2allow -a -l" still throws error messages: > > ... > libsepol.context_from_record: type antivirus_t is not defined > libsepol.context_from_record: could not create context structure > libsepol.context_from_string: could not create context structure > libsepol.sepol_context_to_sid: could not convert unconfined_u:unconfined_r:antivirus_t:s0 to sid > ... > >> Dan - looks like you pushed the audit2why analyze calls down into >> sepolgen while it is parsing the messages. But this means that all >> messages will be analyzed even if the user specified -l. >> > > I will wait for Dan's answer :-). > > Problem solved. @All: Thanks for your help. > > Best regards, > > Alice > > p.s.: > I still don't know how to debug sepol-messages. Can you give me a hint? I think it is not just with the -l option as i had similar output today by using plain ausearch -m avc -ts recent | audit2allow: libsepol.context_from_record: invalid security context: "staff_u:staff_r:mozilla_t:s0-s0:c0.c1023" libsepol.context_from_record: could not create context structure libsepol.context_from_string: could not create context structure libsepol.sepol_context_to_sid: could not convert staff_u:staff_r:mozilla_t:s0-s0:c0.c1023 to sid libsepol.context_from_record: invalid security context: "staff_u:staff_r:mozilla_t:s0-s0:c0.c1023" > > -- > This message was distributed to subscribers of the selinux mailing list. > If you no longer wish to subscribe, send mail to majordomo@xxxxxxxxxxxxx with > the words "unsubscribe selinux" without quotes as the message.
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