1 files changed, 73 insertions, 0 deletions
diff --git a/libcli/security/session.c b/libcli/security/session.c
new file mode 100644
index 0000000..7657451
--- /dev/null
+++ b/libcli/security/session.c
@@ -0,0 +1,73 @@
+/*
+   Unix SMB/CIFS implementation.
+
+   session_info utility functions
+
+   Copyright (C) Andrew Bartlett 2008-2010
+
+   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 3 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, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "includes.h"
+#include "libcli/security/security.h"
+#include "librpc/gen_ndr/auth.h"
+
+enum security_user_level security_session_user_level(struct auth_session_info *session_info,
+						     const struct dom_sid *domain_sid)
+{
+	struct security_token *token = NULL;
+	bool authenticated = false;
+	bool guest = false;
+
+	if (!session_info) {
+		return SECURITY_ANONYMOUS;
+	}
+	token = session_info->security_token;
+
+	if (security_token_is_system(token)) {
+		return SECURITY_SYSTEM;
+	}
+
+	if (security_token_is_anonymous(token)) {
+		return SECURITY_ANONYMOUS;
+	}
+
+	authenticated = security_token_has_nt_authenticated_users(token);
+	guest = security_token_has_builtin_guests(token);
+	if (!authenticated) {
+		if (guest) {
+			return SECURITY_GUEST;
+		}
+		return SECURITY_ANONYMOUS;
+	}
+
+	if (security_token_has_builtin_administrators(token)) {
+		return SECURITY_ADMINISTRATOR;
+	}
+
+	if (domain_sid) {
+		struct dom_sid rodc_dcs = { .num_auths = 0 };
+		sid_compose(&rodc_dcs, domain_sid, DOMAIN_RID_READONLY_DCS);
+
+		if (security_token_has_sid(token, &rodc_dcs)) {
+			return SECURITY_RO_DOMAIN_CONTROLLER;
+		}
+	}
+
+	if (security_token_has_enterprise_dcs(token)) {
+		return SECURITY_DOMAIN_CONTROLLER;
+	}
+
+	return SECURITY_USER;
+}