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authorMichael Adam <obnox@samba.org>2013-04-26 01:06:58 +0200
committerChristian Ambach <ambi@samba.org>2013-05-06 18:23:56 +0200
commit8d34f2fe1e219a0be28bc6b8ce9f93620d39a5b2 (patch)
tree5abb140fb1727438690c91d7241bd573cc4e82f8 /docs-xml/manpages/idmap_autorid.8.xml
parent7bc9563c96c0b91628ec501f8226c1adc24d083d (diff)
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docs: update the description of the formulas in the idmap_autorid manpage
Signed-off-by: Michael Adam <obnox@samba.org> Reviewed-by: Christian Ambach <ambi@samba.org> Autobuild-User(master): Christian Ambach <ambi@samba.org> Autobuild-Date(master): Mon May 6 18:23:56 CEST 2013 on sn-devel-104
Diffstat (limited to 'docs-xml/manpages/idmap_autorid.8.xml')
-rw-r--r--docs-xml/manpages/idmap_autorid.8.xml14
1 files changed, 7 insertions, 7 deletions
diff --git a/docs-xml/manpages/idmap_autorid.8.xml b/docs-xml/manpages/idmap_autorid.8.xml
index 8ce281d10d..c35f903d54 100644
--- a/docs-xml/manpages/idmap_autorid.8.xml
+++ b/docs-xml/manpages/idmap_autorid.8.xml
@@ -88,20 +88,20 @@
<para>
The Unix ID for a RID is calculated this way:
<programlisting>
- ID = IDMAP UID LOW VALUE + DOMAINRANGENUMBER * RANGESIZE + RID
- - (MULTIPLIER * RANGESIZE)
+ ID = REDUCED RID + IDMAP RANGE LOW VALUE + RANGE NUMBER * RANGE SIZE
</programlisting>
+ where REDUCED RID = RID % RANGE_SIZE
+ and a DOMAIN RANGE INDEX = RID / RANGE_SIZE is used together with the
+ domain sid to determine the RANGE NUMBER (stored in the database).
</para>
<para>
Correspondingly, the formula for calculating the RID for a
given Unix ID is this:
<programlisting>
- RID = ID - IDMAP UID LOW VALUE - DOMAINRANGENUMBER * RANGESIZE
- + (MULTIPLIER * RANGESIZE)
+ RID = (ID - LOW ID) % RANGE SIZE + DOMAIN RANGE INDEX * RANGE SIZE
</programlisting>
- </para>
- <para>
- MULTIPLIER is calculated as FLOOR(RID / RANGESIZE).
+ Where the DOMAIN RANGE INDEX is retrieved from the database along with the
+ domain sid by the RANGE NUMBER = (ID - LOW ID) / RANGE SIZE .
</para>
</refsect1>