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   procedure in package body and not declares

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Topic: procedure in package body and not declares (Read 4948 times)

Pete Finnigan
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procedure in package body and not declares
« on: Nov 30^th, 2009, 10:47pm »

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maybe a stupid question...
theoretically possible to exist a method to call procedure from package body when this rpocedure is not declared in package?

P.S Sorry for my bad english (me+google translate ) Grin

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Pete Finnigan
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Re: procedure in package body and not declares
« Reply #1 on: Dec 1^st, 2009, 10:11pm »

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Only from within the package.
Code:

PACKAGE pack_1
proc_1
END;

PACKAGE BODY pack_1
proc_2
proc_1
END;

proc_2 can only be called from within the body of pack_1 (and not through dynamic SQL).

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Pete Finnigan
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Re: procedure in package body and not declares
« Reply #2 on: Dec 4^th, 2009, 7:09pm »

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on Dec 1^st, 2009, 10:11pm, gamyers wrote:

Only from within the package.
Code:

PACKAGE pack_1
  proc_1
END;

PACKAGE BODY pack_1
  proc_2
  proc_1
END;

proc_2 can only be called from within the body of pack_1 (and not through dynamic SQL).

Thanks gamyers
I know about the fact that the procedures in the body of the package perform each other, but this is a theoretical question. whether this is possible at all, or the architecture of Oracle simply does not allow ...

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Pete Finnigan
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Re: procedure in package body and not declares
« Reply #3 on: Dec 6^th, 2009, 9:50pm »

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proc_2 wouldn't be 'exposed' (eg visible in user_arguments) so as far as anything outside the package goes, it simply doesn't exist.

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Pete Finnigan
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Re: procedure in package body and not declares
« Reply #4 on: Dec 6^th, 2009, 10:35pm »

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on Dec 6^th, 2009, 9:50pm, gamyers wrote:

proc_2 wouldn't be 'exposed' (eg visible in user_arguments) so as far as anything outside the package goes, it simply doesn't exist.

Then perhaps the only way to do this re-create the package and declare a func/proc Grin

Thanks Gamyers

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Pete Finnigan
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Re: procedure in package body and not declares
« Reply #5 on: Dec 7^th, 2009, 10:13am »

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This is an interesting question that i dont instantly know the answer without checking. The answer will come down to one of two things:

1) Does Oracle control execution of procedures within packages (i.e. resolve scope) at the database metadata level?

2) Does oracle control procedure execution within packages at the PL/SQL VM level and then within the VM level is it resolved at compile time (static semantic analysis?) or at run time (via dynamic semantic analysis?)

I would say its much more towards the VM/compiled code - has to be. BUT there is a possibility. As the compiled code is held in ther IDL$ tables it could possibly be modified or if its a case when the p-code is not held in the IDL$ tables then the DIANA could be modified in SOURCE$.

Its way too complex to consider even if its possible you need to be connected to the SYS schema with modification rights to make it work. A trojan approach would be better to modify the package header either in source code files or in the database and get it recompiled?

cheers

Pete

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Pete Finnigan
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Re: procedure in package body and not declares
« Reply #6 on: Dec 7^th, 2009, 10:14am »

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Sorry forgot to add, why?

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Pete Finnigan
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Re: procedure in package body and not declares
« Reply #7 on: Dec 9^th, 2009, 1:08am »

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This is interesing if modify a code can add a not secure func. to secure package

, "rootkit" for oracle i try to code one

If can to call a func which is not declared in package this is good metod to "trijan" a bd.
will think more...

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