COMMLOG parameter: Difference between revisions

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{{Template:COMMLOG parameter subtitle}}
==Summary==
==Summary==
<dl>
<dl>
<dt>Default value
<dt>Default value
<dd>X'00'
<dd>X'00'
<dd>X'02' if an External Security Manager (ESM) is active (ACF2, RACF, or TOPSECRET)
<dt>Parameter type
<dt>Parameter type
<dd>System
<dd>System
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<dd>All
<dd>All
<dt>Introduced
<dt>Introduced
<dd>Before [[Sirius Mods]] 6.7
<dd>Before <var class="product">Sirius Mods</var> 6.7
</dl>
</dl>
==Description==
==Description==
This is a bitmask parameter that affects the type of login performed
This is a bitmask parameter that affects the type of login performed
by daemon threads when logged in via a $comm function ($command, $commndl,
by daemon threads when logged in by a $Comm function (<var>$Command</var>, <var>$CommndL</var>,
or $commbg), or via a New method for a daemon class object.
or <var>$CommBg</var>), or by a <var>New</var> method for a <var>Daemon</var> class object.


The bits in this parameter mean:
The bits in this parameter mean:
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<dd>A login that bypasses external authorizer (RACF, ACF2, Top Secret) validation
<dd>A login that bypasses external authorizer (RACF, ACF2, Top Secret) validation
is performed.
is performed.
<dt>X'02'
<dt>X'02'
<dd>A trusted login is performed via the external authorizer.
<dd>A trusted login is performed via the external authorizer.
<dt><b>X'04'</b>
<dd>This activates support for daemon login improvements when used in conjunction with the X'02' bit.


COMMLOG=6 activates an additional layer of processing between Model 204 and ACF2 for processing daemon logins (including $COMMBG and related functions). With COMMLOG=6, each user that performs a login passing a password will get a UUP block, that will be shared with any of its daemons.
<dt>X'04'
<dd>Activates support for daemon login improvements, if used in conjunction with the X'02' bit.
<p>
<code>COMMLOG=6</code> activates an additional layer of processing between Model&nbsp;204 and ACF2 for processing daemon logins (including <var>$CommBg</var> and related functions). With <code>COMMLOG=6</code>, each user that performs a login passing a password gets a UUP block, which is shared with any of its daemons. </p>
 
<dt>X'80'
<dd>If this bit is set along with the X'04' bit, any CCASNAP will include extra information relating to the caching of external authorizer information.
 
<dt>X'20'
<dd>This bit activates diagnostic processing that can be fairly expensive. Set this option only if directed by Rocket technical support.
</dl>
</dl>


If COMMLOG is set to zero, the ''Sirius Mods'' attempts to determine if the external
If <var>COMMLOG</var> is set to zero, <var class="product">Model&nbsp;204</var> attempts to determine if the external
authorizer (if any) supports trusted login (RACF, ACF2, and Top Secret all
authorizer (if any) supports trusted login (RACF, ACF2, and Top Secret all
support trusted login):
support trusted login):
<ul>
<ul>
<li>If the authorizer does, the ''Sirius Mods'' sets COMMLOG to X'02' and then does all
<li>If the authorizer does, <var class="product">Model&nbsp;204</var> sets <var>COMMLOG</var> to X'02', then does all trusted logins via the external authorizer. </li>
trusted logins via the external authorizer.
 
<li>If the authorizer does not, the flag is set to
<li>If the authorizer does not, the flag is set to
X'01', and all logins for $comm and daemon objects do not use the external
X'01', and all logins for $Comm and <var>Daemon</var> objects do not use the external
authorizer.
authorizer. </li>
</ul>
</ul>


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and things that required external authorizer validation (such as sequential file
and things that required external authorizer validation (such as sequential file
access) will not be correctly controlled by the external authorizer.
access) will not be correctly controlled by the external authorizer.
[[Category:System parameters]]
[[Category:System parameters]]
[[Category:Parameters]]
[[Category:Parameters]]

Latest revision as of 00:06, 14 February 2017

$Command login flags

Summary

Default value
X'00'
X'02' if an External Security Manager (ESM) is active (ACF2, RACF, or TOPSECRET)
Parameter type
System
Where set
User 0 CCAIN parameters
Related products
All
Introduced
Before Sirius Mods 6.7

Description

This is a bitmask parameter that affects the type of login performed by daemon threads when logged in by a $Comm function ($Command, $CommndL, or $CommBg), or by a New method for a Daemon class object.

The bits in this parameter mean:

X'01'
A login that bypasses external authorizer (RACF, ACF2, Top Secret) validation is performed.
X'02'
A trusted login is performed via the external authorizer.
X'04'
Activates support for daemon login improvements, if used in conjunction with the X'02' bit.

COMMLOG=6 activates an additional layer of processing between Model 204 and ACF2 for processing daemon logins (including $CommBg and related functions). With COMMLOG=6, each user that performs a login passing a password gets a UUP block, which is shared with any of its daemons.

X'80'
If this bit is set along with the X'04' bit, any CCASNAP will include extra information relating to the caching of external authorizer information.
X'20'
This bit activates diagnostic processing that can be fairly expensive. Set this option only if directed by Rocket technical support.

If COMMLOG is set to zero, Model 204 attempts to determine if the external authorizer (if any) supports trusted login (RACF, ACF2, and Top Secret all support trusted login):

  • If the authorizer does, Model 204 sets COMMLOG to X'02', then does all trusted logins via the external authorizer.
  • If the authorizer does not, the flag is set to X'01', and all logins for $Comm and Daemon objects do not use the external authorizer.

Generally, this parameter should be left as 0, though it might make sense to set it to X'01' for efficiency — there is considerable overhead in an external authorizer login, even a trusted one.

The downside of setting this parameter to X'01' is that no external authorizer logging will be performed for the daemon login (this might be viewed as a benefit), and things that required external authorizer validation (such as sequential file access) will not be correctly controlled by the external authorizer.