Add module versioning to the passdb module system

All passdb modules need to include a 'magic' macro that creates simple
'return my version number' function.

(from metze and jelmer)

Also fix up the dir_drive autosubsitute code to correctly use lp_logon_drive().

(from metze)

Andrew Bartlett
(This used to be commit 4a57c445dd4354034fc41b132a484afe6ab66e16)

1 files changed, 14 insertions, 0 deletions

diff --git a/source3/include/passdb.h b/source3/include/passdb.h
index bd1d1e159b..a79c8a0289 100644
--- a/source3/include/passdb.h
+++ b/source3/include/passdb.h
@@ -27,6 +27,20 @@
  Functions to be implemented by the new (v2) passdb API 
 ****************************************************************/
 
+/*
+ * This next constant specifies the version number of the PASSDB interface
+ * this SAMBA will load. Increment this if *ANY* changes are made to the interface. 
+ */
+
+#define PASSDB_INTERFACE_VERSION 2
+
+/* use this inside a passdb module */
+#define PDB_MODULE_VERSIONING_MAGIC \
+int pdb_version(void)\
+{\
+	return PASSDB_INTERFACE_VERSION;\
+}
+
 typedef struct pdb_context 
 {
 	struct pdb_methods *pdb_methods;