updated the 3.0 branch from the head branch - ready for alpha18

[tprouty/samba.git] / source / passdb / pdb_plugin.c

diff --git a/source/passdb/pdb_plugin.c b/source/passdb/pdb_plugin.c
index 1de61abd5f12a9b67e2e61517dd2f5ace3005943..1a246631fe73f95be018b75e2ca682a12829e9f5 100644 (file)
--- a/source/passdb/pdb_plugin.c
+++ b/source/passdb/pdb_plugin.c
@@ -21,11 +21,15 @@
 
 #include "includes.h"
 
+#undef DBGC_CLASS
+#define DBGC_CLASS DBGC_PASSDB
+
 NTSTATUS pdb_init_plugin(PDB_CONTEXT *pdb_context, PDB_METHODS **pdb_method, const char *location)
 {
        void * dl_handle;
        char *plugin_location, *plugin_name, *p;
        pdb_init_function plugin_init;
+       int (*plugin_version)(void);
 
        if (location == NULL) {
                DEBUG(0, ("The plugin module needs an argument!\n"));
@@ -48,8 +52,23 @@ NTSTATUS pdb_init_plugin(PDB_CONTEXT *pdb_context, PDB_METHODS **pdb_method, con
                return NT_STATUS_UNSUCCESSFUL;
        }
     
+       plugin_version = sys_dlsym(dl_handle, "pdb_version");
+       if (!plugin_version) {
+               sys_dlclose(dl_handle);
+               DEBUG(0, ("Failed to find function 'pdb_version' using sys_dlsym in sam plugin %s (%s)\n", plugin_name, sys_dlerror()));            
+               return NT_STATUS_UNSUCCESSFUL;
+       }
+
+       if (plugin_version()!=PASSDB_INTERFACE_VERSION) {
+               sys_dlclose(dl_handle);
+               DEBUG(0, ("Wrong PASSDB_INTERFACE_VERSION! sam plugin has version %d and version %d is needed! Please update!\n",
+                           plugin_version(),PASSDB_INTERFACE_VERSION));
+               return NT_STATUS_UNSUCCESSFUL;
+       }
+                                       
        plugin_init = sys_dlsym(dl_handle, "pdb_init");
-       if (!plugin_init){
+       if (!plugin_init) {
+               sys_dlclose(dl_handle);
                DEBUG(0, ("Failed to find function 'pdb_init' using sys_dlsym in sam plugin %s (%s)\n", plugin_name, sys_dlerror()));       
                return NT_STATUS_UNSUCCESSFUL;
        }