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idmap_tdb2_new_mapping() is called from inside a transaction only
with sids, that have been verified not to be mapped directly before
that in the same transaction.
Note that this will not prevent the idmap script from writing its
mappings to the database, but no new unix ids will be allocated via
the allocator and hence no new mappings will be autogenerated.
idmap_tdb2_state should actually be called idmap_tdb2_alloc_context.
This is being removed as the idmap and allocation is moved together.
We use the idmap_tdb2_context * that is sitting in dom->private_data.
This contains the same ranges as those in the state anyways.
Later, when we can also allocate for named domains, this will become
necessary anyways.
This moves the new_mapping feature inside the tdb2 backend to make creations
of mappings atomic.
Note: The new internal function idmap_tdb2_get_new_id() that is used to allocate
a new unix id is prepared to function for multiple explicitly configured idmap
domains, but currently it does only work for the default domain. The extended
allocation support requires extension of the data base format to store multiple
counters (per domain). This will be added in a later step (TODO!).
This uses the new dbwrap_trans_change_uint32_atomic()
instead of dbwrap_change_uint32_atomic().
Now all db write operations in idmap_tdb2.c are using
transactions.
Michael
When a mapping is not found, then the idmap script is called (if defined).
When this gives a reply for the desired sid, this reply is stored in the db.
This patch wraps theses two store operations into a transaction by re-using
the idmap_tdb2_set_mapping_action() function previously defined
for idmap_tdb2_set_mapping().
Michael
When a mapping is not found, then the idmap script is called (if defined).
When this gives a reply for the desired id, this reply is stored in the db.
This patch wraps theses two store operations into a transaction by re-using
the idmap_tdb2_set_mapping_action() function previously defined
for idmap_tdb2_set_mapping().
Michael
