Re: How to get SE-PostgreSQL acceptable

From: KaiGai Kohei <kaigai(at)kaigai(dot)gr(dot)jp>
To: Bruce Momjian <bruce(at)momjian(dot)us>
Cc: Andrew Dunstan <andrew(at)dunslane(dot)net>, Josh Berkus <josh(at)agliodbs(dot)com>, Joshua Brindle <method(at)manicmethod(dot)com>, PG Hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: How to get SE-PostgreSQL acceptable
Date: 2009-01-31 01:43:53
Message-ID: 4983ACD9.4020804@kaigai.gr.jp
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Bruce Momjian wrote:
> KaiGai Kohei wrote:
>>> Hasn't a plan for this already been posted? See
>>> http://archives.postgresql.org/pgsql-hackers/2009-01/msg02407.php
>> FYI:
>>
>> * previous full-functional SE-PostgreSQL/Row-ACLs
>>
>> [kaigai(at)fedora10 security]$ wc -l *.c */*.c
>> 729 pgaceCommon.c
>> 1547 pgaceHooks.c
>> 721 rowacl/rowacl.c
>> 1200 sepgsql/avc.c
>> 623 sepgsql/core.c
>> 1019 sepgsql/hooks.c
>> 785 sepgsql/permissions.c
>> 1097 sepgsql/proxy.c
>> 7721 total
>>
>> * A lite SE-PostgreSQL without row-level security,
>> large object support, writable system column
>>
>> [kaigai(at)fedora10 sepgsql]$ wc -l *.c
>> 904 checker.c
>> 1181 avc.c
>> 360 core.c
>> 55 dummy.c
>> 683 hooks.c
>> 478 label.c
>> 553 perms.c
>> 4214 total
>>
>> Today, I'll debug the modified code...
>
> Wow, that was fast. Where are you storing the security information for
> tables and columns? Did you add a special column to pg_class, etc?

Security information is stored within padding field of HeapTupleHeader
as we did. It can be fetched via sepgsql_(table|column|...)_getcon()
functions, and can be set via SECURITY_LABEL = 'xxx'.

--
KaiGai Kohei <kaigai(at)kaigai(dot)gr(dot)jp>

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