util-vserver 0.30.214

[util-vserver.git] / lib / syscall_ctxcreate-v21.hc

diff --git a/lib/syscall_ctxcreate-v21.hc b/lib/syscall_ctxcreate-v21.hc
new file mode 100644 (file)
index 0000000..20e7462
--- /dev/null
+++ b/lib/syscall_ctxcreate-v21.hc
@@ -0,0 +1,48 @@
+// $Id$    --*- c -*--
+
+// Copyright (C) 2007 Daniel Hokka Zakrisson
+//  
+// 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; version 2 of the License.
+//  
+// 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+
+#ifdef HAVE_CONFIG_H
+#  include <config.h>
+#endif
+#include <lib_internal/sys_unshare.h>
+
+static inline ALWAYSINLINE xid_t
+vc_ctx_create_v21(xid_t xid, struct vc_ctx_flags *flags)
+{
+  struct vcmd_ctx_create data = {
+       .flagword = (VC_VXF_STATE_SETUP | VC_VXF_STATE_ADMIN |
+                    VC_VXF_STATE_INIT)
+  };
+  xid_t                res;
+
+  if (flags)
+    data.flagword = flags->flagword & flags->mask;
+
+  res = vserver(VCMD_ctx_create, CTX_USER2KERNEL(xid), &data);
+  res = CTX_KERNEL2USER(res);
+
+  if (res != VC_NOCTX) {
+    if (utilvserver_checkCompatConfig() & VC_VCI_SPACES) {
+      uint32_t spaces = vc_get_space_mask() & ~(CLONE_NEWNS|CLONE_FS);
+      sys_unshare(spaces);
+      vc_set_namespace(VC_SAMECTX, spaces);
+    }
+  }
+
+  return res;
+}