src/shared/nsflags.h

   1 /* SPDX-License-Identifier: LGPL-2.1+ */
   2 #pragma once
   3
   4 /***
   5   Copyright 2016 Lennart Poettering
   6 ***/
   7
   8 #include <sched.h>
   9
  10 #include "missing.h"
  11
  12 /* The combination of all namespace flags defined by the kernel. The right type for this isn't clear. setns() and
  13  * unshare() expect these flags to be passed as (signed) "int", while clone() wants them as "unsigned long". The latter
  14  * is definitely more appropriate for a flags parameter, and also the larger type of the two, hence let's stick to that
  15  * here. */
  16 #define NAMESPACE_FLAGS_ALL                                             \
  17         ((unsigned long) (CLONE_NEWCGROUP|                              \
  18                           CLONE_NEWIPC|                                 \
  19                           CLONE_NEWNET|                                 \
  20                           CLONE_NEWNS|                                  \
  21                           CLONE_NEWPID|                                 \
  22                           CLONE_NEWUSER|                                \
  23                           CLONE_NEWUTS))
  24
  25 #define NAMESPACE_FLAGS_INITIAL  ((unsigned long) -1)
  26
  27 int namespace_flags_from_string(const char *name, unsigned long *ret);
  28 int namespace_flags_to_string(unsigned long flags, char **ret);
  29
  30 struct namespace_flag_map {
  31         unsigned long flag;
  32         const char *name;
  33 };
  34
  35 extern const struct namespace_flag_map namespace_flag_map[];