r9455: Support for reading the policy database

(This used to be commit 7548a5012aad41bde0652d4532d184545997be86)

5 files changed, 134 insertions, 1 deletions

diff --git a/source4/lib/samba3/config.mk b/source4/lib/samba3/config.mk
index 5045901b3b..ba6c1a8dbc 100644
--- a/source4/lib/samba3/config.mk
+++ b/source4/lib/samba3/config.mk
@@ -3,7 +3,8 @@
 [SUBSYSTEM::LIBSAMBA3]
 INIT_OBJ_FILES = \
 		lib/samba3/smbpasswd.o \
-		lib/samba3/tdbsam.o
+		lib/samba3/tdbsam.o \
+		lib/samba3/policy.o
 # End SUBSYSTEM LIBSAMBA3
 ################################################
 
diff --git a/source4/lib/samba3/policy.c b/source4/lib/samba3/policy.c
new file mode 100644
index 0000000000..796e6eefac
--- /dev/null
+++ b/source4/lib/samba3/policy.c
@@ -0,0 +1,67 @@
+/* 
+ *  Unix SMB/CIFS implementation.
+ *  account policy storage
+ *  Copyright (C) Jean François Micouleau      1998-2001.
+ *  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"
+#include "lib/tdb/include/tdbutil.h"
+#include "lib/samba3/policy.h"
+#include "system/filesys.h"
+
+#define DATABASE_VERSION 2
+
+/****************************************************************************
+ Open the account policy tdb.
+****************************************************************************/
+
+struct samba3_policy *samba3_read_account_policy(TALLOC_CTX *ctx, const char *fn)
+{
+	struct samba3_policy *ret;
+	const char *vstring = "INFO/version";
+	uint32_t version;
+
+	TDB_CONTEXT *tdb = tdb_open(fn, 0, TDB_DEFAULT, O_RDONLY, 0600);
+	if (!tdb) {
+		DEBUG(0,("Failed to open account policy database\n"));
+		return NULL;
+	}
+
+	/* handle a Samba upgrade */
+	if (!tdb_fetch_uint32(tdb, vstring, &version) || version != DATABASE_VERSION) {
+		tdb_store_uint32(tdb, vstring, DATABASE_VERSION);
+	}
+
+	ret = talloc_zero(ctx, struct samba3_policy);
+
+	tdb_fetch_uint32(tdb, "min password length", &ret->min_password_length);
+	tdb_fetch_uint32(tdb, "password history", &ret->password_history);
+	tdb_fetch_uint32(tdb, "user must logon to change pasword", &ret->user_must_logon_to_change_password);
+	tdb_fetch_uint32(tdb, "maximum password age", &ret->maximum_password_age);
+	tdb_fetch_uint32(tdb, "minimum password age", &ret->minimum_password_age);
+	tdb_fetch_uint32(tdb, "lockout duration", &ret->lockout_duration);
+	tdb_fetch_uint32(tdb, "reset count minutes", &ret->reset_count_minutes);
+	tdb_fetch_uint32(tdb, "bad lockout minutes", &ret->bad_lockout_minutes);
+	tdb_fetch_uint32(tdb, "disconnect time", &ret->disconnect_time);
+	tdb_fetch_uint32(tdb, "refuse machine password change", &ret->refuse_machine_password_change);
+
+	tdb_close(tdb);
+
+	return ret;
+}
+
diff --git a/source4/lib/samba3/policy.h b/source4/lib/samba3/policy.h
new file mode 100644
index 0000000000..b41f38a394
--- /dev/null
+++ b/source4/lib/samba3/policy.h
@@ -0,0 +1,37 @@
+/* 
+   Unix SMB/CIFS implementation.
+   Copyright (C) Jelmer Vernooij			2005.
+   
+   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.
+*/
+
+#ifndef _SAMBA3_POLICY_H /* _SAMBA3_POLICY_H */
+#define _SAMBA3_POLICY_H 
+
+struct samba3_policy
+{
+	uint32_t min_password_length;
+	uint32_t password_history;
+	uint32_t user_must_logon_to_change_password;
+	uint32_t maximum_password_age;
+	uint32_t minimum_password_age;
+	uint32_t lockout_duration;
+	uint32_t reset_count_minutes;
+	uint32_t bad_lockout_minutes;
+	uint32_t disconnect_time;
+	uint32_t refuse_machine_password_change;
+};
+
+#endif /* _SAMBA3_POLICY_H */
diff --git a/source4/lib/samba3/samba3dump.c b/source4/lib/samba3/samba3dump.c
index 4071ba1bf9..72052092ff 100644
--- a/source4/lib/samba3/samba3dump.c
+++ b/source4/lib/samba3/samba3dump.c
@@ -20,11 +20,34 @@
 */
 
 #include "includes.h"
+#include "lib/samba3/policy.h"
 #include "lib/samba3/sam.h"
 #include "lib/cmdline/popt_common.h"
 
 static const char *libdir = "/var/lib/samba";
 
+static NTSTATUS print_policy(void)
+{
+	struct samba3_policy *ret;
+	char *policy_file;
+	TALLOC_CTX *mem_ctx = talloc_init(NULL);
+
+	policy_file = talloc_asprintf(mem_ctx, "%s/account_policy.tdb", libdir);
+
+	printf("Opening policy file %s\n", policy_file);
+
+	ret = samba3_read_account_policy(mem_ctx, policy_file);
+
+	if (ret == NULL) 
+		return NT_STATUS_UNSUCCESSFUL;
+	
+	printf("Min password length: %d\n", ret->min_password_length);
+
+	talloc_free(mem_ctx);
+
+	return NT_STATUS_OK;
+}
+
 static NTSTATUS print_sam(void)
 {
 	struct samba3_samaccount *accounts;
@@ -39,8 +62,10 @@ static NTSTATUS print_sam(void)
 	status = samba3_read_tdbsam(NULL, tdbsam_file, &accounts, &count);
 	if (NT_STATUS_IS_ERR(status)) {
 		fprintf(stderr, "Error reading tdbsam database %s\n", tdbsam_file);
+		SAFE_FREE(tdbsam_file);
 		return status;
 	}
+	SAFE_FREE(tdbsam_file);
 
 	for (i = 0; i < count; i++) {
 		printf("%d: %s\n", accounts[i].user_rid, accounts[i].username);
@@ -68,6 +93,7 @@ int main(int argc, char **argv)
 	}
 
 	print_sam();
+	print_policy();
 
 	poptFreeContext(pc);
 
diff --git a/source4/lib/tdb/include/tdbutil.h b/source4/lib/tdb/include/tdbutil.h
index 0d86ddc993..2f7c0ec234 100644
--- a/source4/lib/tdb/include/tdbutil.h
+++ b/source4/lib/tdb/include/tdbutil.h
@@ -38,7 +38,9 @@ int32_t tdb_change_int32_atomic(TDB_CONTEXT *tdb, const char *keystr, int32_t *o
 int tdb_lock_bystring(TDB_CONTEXT *tdb, const char *keyval);
 void tdb_unlock_bystring(TDB_CONTEXT *tdb, const char *keyval);
 int32_t tdb_fetch_int32(TDB_CONTEXT *tdb, const char *keystr);
+BOOL tdb_store_uint32(TDB_CONTEXT *tdb, const char *keystr, uint32_t value);
 int tdb_store_int32(TDB_CONTEXT *tdb, const char *keystr, int32_t v);
+BOOL tdb_fetch_uint32(TDB_CONTEXT *tdb, const char *keystr, uint32_t *value);
 int tdb_traverse_delete_fn(TDB_CONTEXT *the_tdb, TDB_DATA key, TDB_DATA dbuf,
                      void *state);
 int tdb_store_bystring(TDB_CONTEXT *tdb, const char *keystr, TDB_DATA data, int flags);