1 files changed, 391 insertions, 0 deletions
diff --git a/source3/passdb/pdb_interface.c b/source3/passdb/pdb_interface.c
new file mode 100644
index 0000000000..435b627da6
--- /dev/null
+++ b/source3/passdb/pdb_interface.c
@@ -0,0 +1,391 @@
+/* 
+   Unix SMB/CIFS implementation.
+   Password and authentication handling
+   Copyright (C) Andrew Bartlett		    2002
+      
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2 of the License, or
+   (at your option) any later version.
+   
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+   
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#include "includes.h"
+
+/** List of various built-in passdb modules */
+
+const struct pdb_init_function_entry builtin_pdb_init_functions[] = {
+	{ "smbpasswd", pdb_init_smbpasswd },
+	{ "smbpasswd_nua", pdb_init_smbpasswd_nua },
+	{ "tdbsam", pdb_init_tdbsam },
+	{ "tdbsam_nua", pdb_init_tdbsam_nua },
+	{ "ldapsam", pdb_init_ldapsam },
+	{ "ldapsam_nua", pdb_init_ldapsam_nua },
+#if 0
+	{ "nisplus", pdb_init_nisplus },	
+	{ "unix", pdb_init_unix },
+#endif
+	{ "plugin", pdb_init_plugin },
+	{ NULL, NULL}
+};
+
+static BOOL context_setsampwent(struct pdb_context *context, BOOL update)
+{
+	if ((!context) || (!context->pdb_selected)) {
+		DEBUG(0, ("invalid pdb_context specified!\n"));
+		return False;
+	}
+	
+	return context->pdb_selected->setsampwent(context, update);
+}
+
+static void context_endsampwent(struct pdb_context *context)
+{
+	if ((!context) || (!context->pdb_selected)) {
+		DEBUG(0, ("invalid pdb_context specified!\n"));
+		return;
+	}
+	
+	context->pdb_selected->endsampwent(context);
+}
+
+static BOOL context_getsampwent(struct pdb_context *context, SAM_ACCOUNT *user)
+{
+	if ((!context) || (!context->pdb_selected)) {
+		DEBUG(0, ("invalid pdb_context specified!\n"));
+		return False;
+	}
+	
+	return context->pdb_selected->getsampwent(context, user);
+}
+
+static BOOL context_getsampwnam(struct pdb_context *context, SAM_ACCOUNT *sam_acct, const char *username)
+{
+	if ((!context) || (!context->pdb_selected)) {
+		DEBUG(0, ("invalid pdb_context specified!\n"));
+		return False;
+	}
+	
+	return context->pdb_selected->getsampwnam(context, sam_acct, username);
+}
+
+static BOOL context_getsampwrid(struct pdb_context *context, SAM_ACCOUNT *sam_acct, uint32 rid)
+{
+	if ((!context) || (!context->pdb_selected)) {
+		DEBUG(0, ("invalid pdb_context specified!\n"));
+		return False;
+	}
+	
+	return context->pdb_selected->getsampwrid(context, sam_acct, rid);
+}
+
+static BOOL context_add_sam_account(struct pdb_context *context, SAM_ACCOUNT *sam_acct)
+{
+	if ((!context) || (!context->pdb_selected)) {
+		DEBUG(0, ("invalid pdb_context specified!\n"));
+		return False;
+	}
+	
+	/** @todo  This is where a 're-read on add' should be done */
+  
+	return context->pdb_selected->add_sam_account(context, sam_acct);
+}
+
+static BOOL context_update_sam_account(struct pdb_context *context, SAM_ACCOUNT *sam_acct)
+{
+	if ((!context) || (!context->pdb_selected)) {
+		DEBUG(0, ("invalid pdb_context specified!\n"));
+		return False;
+	}
+	
+	/** @todo  This is where a 're-read on update' should be done */
+	
+	return context->pdb_selected->update_sam_account(context, sam_acct);
+}
+
+static BOOL context_delete_sam_account(struct pdb_context *context, SAM_ACCOUNT *sam_acct)
+{
+	if ((!context) || (!context->pdb_selected)) {
+		DEBUG(0, ("invalid pdb_context specified!\n"));
+		return False;
+	}
+	
+	return context->pdb_selected->delete_sam_account(context, sam_acct);
+}
+
+static void free_pdb_context(struct pdb_context **context)
+{
+	if (((*context)->pdb_selected) && ((*context)->pdb_selected->free_private_data)) {
+		(*context)->pdb_selected->free_private_data((*context)->pdb_selected->private_data);
+	}
+
+	talloc_destroy((*context)->mem_ctx);
+	*context = NULL;
+}
+
+/******************************************************************
+ Make a pdb_context from scratch.
+*******************************************************************/
+
+static NTSTATUS make_pdb_context(struct pdb_context **context) 
+{
+	TALLOC_CTX *mem_ctx;
+	
+	mem_ctx = talloc_init_named("pdb_context internal allocation context");
+
+	if (!mem_ctx) {
+		DEBUG(0, ("make_pdb_context: talloc init failed!\n"));
+		return NT_STATUS_NO_MEMORY;
+	}		
+
+	*context = talloc(mem_ctx, sizeof(**context));
+	if (!*context) {
+		DEBUG(0, ("make_pdb_context: talloc failed!\n"));
+		return NT_STATUS_NO_MEMORY;
+	}
+
+	ZERO_STRUCTP(*context);
+
+	(*context)->mem_ctx = mem_ctx;
+
+	(*context)->pdb_setsampwent = context_setsampwent;
+	(*context)->pdb_endsampwent = context_endsampwent;
+	(*context)->pdb_getsampwent = context_getsampwent;
+	(*context)->pdb_getsampwnam = context_getsampwnam;
+	(*context)->pdb_getsampwrid = context_getsampwrid;
+	(*context)->pdb_add_sam_account = context_add_sam_account;
+	(*context)->pdb_update_sam_account = context_update_sam_account;
+	(*context)->pdb_delete_sam_account = context_delete_sam_account;
+
+	(*context)->free_fn = free_pdb_context;
+	
+	return NT_STATUS_OK;
+}
+
+
+/******************************************************************
+ Make a pdb_context, given a text string.
+*******************************************************************/
+
+NTSTATUS make_pdb_context_name(struct pdb_context **context, const char *selected) 
+{
+	/* HINT: Don't store 'selected' becouse its often an lp_ string and
+	   will 'go away' */
+	NTSTATUS nt_status = NT_STATUS_UNSUCCESSFUL;
+	int i;
+	char *module_name = smb_xstrdup(selected);
+	char *module_location = NULL;
+	char *p;
+
+	p = strchr(module_name, ':');
+	
+	if (p) {
+		*p = 0;
+	
+		module_location = p+1;
+		
+		trim_string(module_location, " ", " ");
+	}
+
+	trim_string(module_name, " ", " ");
+
+	if (!NT_STATUS_IS_OK(nt_status = make_pdb_context(context)))
+		goto done;
+	
+	DEBUG(5,("Attempting to find an passdb backend to match %s (%s)\n", 
+		 selected, module_name));
+
+	for (i = 0; builtin_pdb_init_functions[i].name; i++) {
+		if (strequal(builtin_pdb_init_functions[i].name, 
+			     module_name)) {
+
+			DEBUG(5,("Found pdb backend %s (at pos %d)\n", 
+				 module_name, i));
+
+			if (NT_STATUS_IS_OK(nt_status = builtin_pdb_init_functions[i].init(*context, &(*context)->pdb_selected, module_location))) {
+				DEBUG(5,("pdb backend %s has a valid init\n", selected));
+			} else {
+				DEBUG(0,("pdb backend %s did not correctly init (error was %s)\n", selected, nt_errstr(nt_status)));
+				(*context)->pdb_selected = NULL;
+			}
+			break;
+		}
+	}
+    
+	if (!(*context)->pdb_selected) {
+		DEBUG(0,("failed to select passdb backed!\n"));
+		talloc_destroy((*context)->mem_ctx);
+		*context = NULL;
+		goto done;
+	}
+
+	nt_status = NT_STATUS_OK;
+
+ done:
+	SAFE_FREE(module_name);
+
+	return nt_status;
+}
+
+
+/******************************************************************
+ Return an already initialised pdb_context, to facilitate backward 
+ compatibility (see functions below).
+*******************************************************************/
+
+static struct pdb_context *pdb_get_static_context(BOOL reload) 
+{
+	static struct pdb_context *pdb_context = NULL;
+	
+	if ((pdb_context) && (reload)) {
+		pdb_context->free_fn(&pdb_context);
+		if (!NT_STATUS_IS_OK(make_pdb_context_name(&pdb_context, lp_passdb_backend()))) {
+			return NULL;
+		}
+	}
+	
+	if (!pdb_context) {
+		if (!NT_STATUS_IS_OK(make_pdb_context_name(&pdb_context, lp_passdb_backend()))) {
+			return NULL;
+		}
+	}
+	
+	return pdb_context;
+}
+
+#if !defined(WITH_NISPLUS_SAM)
+
+/******************************************************************
+ Backward compatibility functions for the original passdb interface
+*******************************************************************/
+
+BOOL pdb_setsampwent(BOOL update) 
+{
+	struct pdb_context *pdb_context = pdb_get_static_context(False);
+
+	if (!pdb_context) {
+		return False;
+	}
+
+	return pdb_context->pdb_setsampwent(pdb_context, update);
+}
+
+void pdb_endsampwent(void) 
+{
+	struct pdb_context *pdb_context = pdb_get_static_context(False);
+
+	if (!pdb_context) {
+		return;
+	}
+
+	pdb_context->pdb_endsampwent(pdb_context);
+}
+
+BOOL pdb_getsampwent(SAM_ACCOUNT *user) 
+{
+	struct pdb_context *pdb_context = pdb_get_static_context(False);
+
+	if (!pdb_context) {
+		return False;
+	}
+
+	return pdb_context->pdb_getsampwent(pdb_context, user);
+}
+
+BOOL pdb_getsampwnam(SAM_ACCOUNT *sam_acct, const char *username) 
+{
+	struct pdb_context *pdb_context = pdb_get_static_context(False);
+
+	if (!pdb_context) {
+		return False;
+	}
+
+	return pdb_context->pdb_getsampwnam(pdb_context, sam_acct, username);
+}
+
+BOOL pdb_getsampwrid(SAM_ACCOUNT *sam_acct, uint32 rid) 
+{
+	struct pdb_context *pdb_context = pdb_get_static_context(False);
+
+	if (!pdb_context) {
+		return False;
+	}
+
+	return pdb_context->pdb_getsampwrid(pdb_context, sam_acct, rid);
+}
+
+BOOL pdb_add_sam_account(SAM_ACCOUNT *sam_acct) 
+{
+	struct pdb_context *pdb_context = pdb_get_static_context(False);
+
+	if (!pdb_context) {
+		return False;
+	}
+
+	return pdb_context->pdb_add_sam_account(pdb_context, sam_acct);
+}
+
+BOOL pdb_update_sam_account(SAM_ACCOUNT *sam_acct) 
+{
+	struct pdb_context *pdb_context = pdb_get_static_context(False);
+
+	if (!pdb_context) {
+		return False;
+	}
+
+	return pdb_context->pdb_update_sam_account(pdb_context, sam_acct);
+}
+
+BOOL pdb_delete_sam_account(SAM_ACCOUNT *sam_acct) 
+{
+	struct pdb_context *pdb_context = pdb_get_static_context(False);
+	
+	if (!pdb_context) {
+		return False;
+	}
+	
+	return pdb_context->pdb_delete_sam_account(pdb_context, sam_acct);
+}
+
+#endif /* !defined(WITH_NISPLUS_SAM) */
+
+/***************************************************************
+ Initialize the static context (at smbd startup etc). 
+
+ If uninitialised, context will auto-init on first use.
+***************************************************************/
+
+BOOL initialize_password_db(BOOL reload)
+{	
+	return (pdb_get_static_context(reload) != NULL);
+}
+
+
+NTSTATUS make_pdb_methods(TALLOC_CTX *mem_ctx, PDB_METHODS **methods) 
+{
+	*methods = talloc(mem_ctx, sizeof(struct pdb_methods));
+
+	if (!*methods) {
+		return NT_STATUS_NO_MEMORY;
+	}
+
+	ZERO_STRUCTP(*methods);
+
+	return NT_STATUS_OK;
+}
+
+
+
+
+
+
+
+