/usr/include/singularity/runtime.h is in singularity-container 2.4.2-4.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 | /*
* Copyright (c) 2017, SingularityWare, LLC. All rights reserved.
*
* Copyright (c) 2015-2017, Gregory M. Kurtzer. All rights reserved.
*
* Copyright (c) 2016-2017, The Regents of the University of California,
* through Lawrence Berkeley National Laboratory (subject to receipt of any
* required approvals from the U.S. Dept. of Energy). All rights reserved.
*
* This software is licensed under a customized 3-clause BSD license. Please
* consult LICENSE file distributed with the sources of this project regarding
* your rights to use or distribute this software.
*
* NOTICE. This Software was developed under funding from the U.S. Department of
* Energy and the U.S. Government consequently retains certain rights. As such,
* the U.S. Government has been granted for itself and others acting on its
* behalf a paid-up, nonexclusive, irrevocable, worldwide license in the Software
* to reproduce, distribute copies to the public, prepare derivative works, and
* perform publicly and display publicly, and to permit other to do so.
*
*/
#ifndef __SINGULARITY_RUNTIME_H_
#define __SINGULARITY_RUNTIME_H_
// The Following functions actually do work:
// Unshare namespaces
extern int singularity_runtime_ns(unsigned int flags);
#define SR_NS_PID 1
#define SR_NS_IPC 2
#define SR_NS_MNT 4
#define SR_NS_NET 8
#define SR_NS_ALL 255
// Setup/initialize the overlayFS
extern int singularity_runtime_overlayfs(void);
// Setup mount points within container
extern int singularity_runtime_mounts(void);
// Setup files within the container
extern int singularity_runtime_files(void);
// Enter container root
extern int singularity_runtime_enter(void);
// Clean, santize, update environment
extern int singularity_runtime_environment(void);
// Setup for buggy autofs path
extern int singularity_runtime_autofs(void);
#endif /* __SINGULARITY_RUNTIME_H */
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