From: | Robert Haas <robertmhaas(at)gmail(dot)com> |
---|---|
To: | Kohei Kaigai <Kohei(dot)Kaigai(at)emea(dot)nec(dot)com> |
Cc: | Yeb Havinga <yebhavinga(at)gmail(dot)com>, PgHacker <pgsql-hackers(at)postgresql(dot)org>, Kohei KaiGai <kaigai(at)kaigai(dot)gr(dot)jp> |
Subject: | Re: [v9.1] sepgsql - userspace access vector cache |
Date: | 2011-08-18 17:00:37 |
Message-ID: | CA+Tgmobj9kWv4qOQHBnUQj-GC3R8dd3Z0-nVSoPxK1ExyKq_xQ@mail.gmail.com |
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Lists: | pgsql-hackers |
On Thu, Aug 18, 2011 at 12:52 PM, Robert Haas <robertmhaas(at)gmail(dot)com> wrote:
> On Thu, Aug 18, 2011 at 12:46 PM, Robert Haas <robertmhaas(at)gmail(dot)com> wrote:
>> On Thu, Jul 21, 2011 at 5:29 AM, Kohei Kaigai <Kohei(dot)Kaigai(at)emea(dot)nec(dot)com> wrote:
>>> The attached patch is revised userspace-avc patch.
>>>
>>> List of updates:
>>> - The GUC of sepgsql.avc_threshold was removed.
>>> - "char *ucontext" of avc_cache was replaced by "bool tcontext_is_valid".
>>> - Comments added onto static variables
>>> - Comments of sepgsql_avc_unlabeled() was revised.
>>> - Comments of sepgsql_avc_compute() was simplified.
>>> - Comments of sepgsql_avc_check_perms_label() also mention about
>>> permissive domain, that performs similar to system's permissive mode.
>>> - selinux_status_close() become invoked on on_proc_exit() hook.
>>
>> I tried to give this a test drive today but got stuck. I got sepgsql
>> compiled OK, but look what happens when I try to start the server:
>>
>> [rhaas(at)f15selinux ~]$ postgres
>> FATAL: could not load library
>> "/home/rhaas/project/lib/postgresql/sepgsql.so":
>> /home/rhaas/project/lib/postgresql/sepgsql.so: undefined symbol:
>> getpeercon_raw
>>
>> This is Fedora 15, with all available updates applied.
>
> Oh. Apparently, this is what happens when you try to build sepgsql
> without passing --with-selinux to configure.
>
> That's lame. I think we need to patch contrib/sepgsql so that it
> fails to build in that case, rather than building and then not
> working.
Also, I get these warnings:
/etc/selinux/targeted/contexts/sepgsql_contexts: line 33 has invalid
object type db_blobs
/etc/selinux/targeted/contexts/sepgsql_contexts: line 36 has invalid
object type db_language
/etc/selinux/targeted/contexts/sepgsql_contexts: line 37 has invalid
object type db_language
/etc/selinux/targeted/contexts/sepgsql_contexts: line 38 has invalid
object type db_language
/etc/selinux/targeted/contexts/sepgsql_contexts: line 39 has invalid
object type db_language
/etc/selinux/targeted/contexts/sepgsql_contexts: line 40 has invalid
object type db_language
1: sepgsql_restorecon = "t" (typeid = 16, len = 1, typmod = -1, byval = t)
The first is mentioned in the latest documentation, but the rest are not.
--
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company
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