Initial revision

1 files changed, 75 insertions, 0 deletions

diff --git a/libnetfs/io-reauthenticate.c b/libnetfs/io-reauthenticate.c
new file mode 100644
index 00000000..d49209ab
--- /dev/null
+++ b/libnetfs/io-reauthenticate.c
@@ -0,0 +1,75 @@
+/* 
+   Copyright (C) 1995 Free Software Foundation, Inc.
+   Written by Michael I. Bushnell, p/BSG.
+
+   This file is part of the GNU Hurd.
+
+   The GNU Hurd 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, or (at
+   your option) any later version.
+
+   The GNU Hurd 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., 59 Temple Place - Suite 330, Boston, MA  02111, USA. */
+
+#include "netfs.h"
+#include "io_S.h"
+
+error_t
+netfs_S_io_reauthenticate (struct protid *user, mach_port_t rend_port)
+{
+  struct protid *newpi;
+  uid_t gubuf[20], ggbuf[20], aubuf[20], agbuf[20];
+  uid_t *gen_uids, *gin_gids, *aux_uids, *aux_gids;
+  u_int genuidlen, gengidlen, auxuidlen, auxgidlen;
+  error_t err;
+  
+  if (!user)
+    return EOPNOTSUPP;
+  
+  genuidlen = gengidlen = auxuidlen = auxgidlen = 20;
+  gen_uids = gubuf;
+  gen_gids = ggbuf;
+  aux_uids = aubuf;
+  aux_gids = agbuf;
+  
+  mutex_lock (&user->po->np->lock);
+  newpi = netfs_make_protid (user->po, 0);
+  err = auth_server_authenticate (netfs_auth_server_port,
+				  ports_get_right (user),
+				  MACH_MSG_TYPE_MAKE_SEND,
+				  rend_port,
+				  MACH_MSG_TYPE_MOVE_SEND,
+				  ports_get_right (newpi),
+				  MACH_MSG_TYPE_MAKE_SEND,
+				  &gen_uids, &genuidlen,
+				  &aux_uids, &auxuidlen,
+				  &gen_gids, &gengidlen,
+				  &aux_uids, &auxuidlen);
+  assert_perror (err);
+  
+  newpi->credential = netfs_make_credential (gen_uids, genuidlen,
+					     gen_gids, gengidlen);
+  mutex_unlock (&user->po->np->lock);
+  ports_port_deref (newpi);
+
+  if (gen_uids != gubuf)
+    vm_deallocate (mach_task_self (), (vm_address_t) gen_uids,
+		   genuidlen * sizeof (uid_t));
+  if (aux_uids != aubuf)
+    vm_deallocate (mach_task_self (), (vm_address_t) aux_uids,
+		   auxuidlen * sizeof (uid_t));
+  if (gen_gids != ggbuf)
+    vm_deallocate (mach_task_self (), (vm_address_t) gen_gids,
+		   gengidlen * sizeof (uid_t));
+  if (aux_gids != aubuf)
+    vm_deallocate (mach_task_self (), (vm_address_t) aux_gids,
+		   auxgidlen * sizeof (uid_t));
+  return 0;
+}