From: Stefan Metzmacher <metze@samba.org>
Date: Fri, 25 May 2018 14:22:33 +0000 (+0200)
Subject: smbd: add [un]become_guest() helper functions
X-Git-Tag: ldb-1.5.0~345
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7b5a47b84696e8e5c26207bd398742b883e598c2;p=thirdparty%2Fsamba.git

smbd: add [un]become_guest() helper functions

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
---

diff --git a/source3/smbd/proto.h b/source3/smbd/proto.h
index ab4a8d68d3f..cbb43829fe0 100644
--- a/source3/smbd/proto.h
+++ b/source3/smbd/proto.h
@@ -1203,6 +1203,8 @@ void become_root(void);
 void unbecome_root(void);
 void smbd_become_root(void);
 void smbd_unbecome_root(void);
+bool become_guest(void);
+void unbecome_guest(void);
 bool become_user(connection_struct *conn, uint64_t vuid);
 bool become_user_by_fsp(struct files_struct *fsp);
 bool become_user_by_session(connection_struct *conn,
diff --git a/source3/smbd/uid.c b/source3/smbd/uid.c
index 9d5321cf4cc..c6c4573f9c9 100644
--- a/source3/smbd/uid.c
+++ b/source3/smbd/uid.c
@@ -598,6 +598,34 @@ void smbd_unbecome_root(void)
 	pop_conn_ctx();
 }
 
+bool become_guest(void)
+{
+	bool ok;
+
+	ok = push_sec_ctx();
+	if (!ok) {
+		return false;
+	}
+
+	push_conn_ctx();
+
+	ok = change_to_guest();
+	if (!ok) {
+		pop_sec_ctx();
+		pop_conn_ctx();
+		return false;
+	}
+
+	return true;
+}
+
+void unbecome_guest(void)
+{
+	pop_sec_ctx();
+	pop_conn_ctx();
+	return;
+}
+
 /****************************************************************************
  Push the current security context then force a change via change_to_user().
  Saves and restores the connection context.