namespace.cc File Reference

#include "cvmfs_config.h"
#include "namespace.h"
#include <fcntl.h>
#include <signal.h>
#include <sched.h>
#include <sys/mount.h>
#include <sys/wait.h>
#include <cstring>
#include "util/posix.h"
#include "util/string.h"

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Namespaces
	anonymous_namespace{namespace.cc}

Macros
#define	CLONE_NEWUSER   0x10000000
#define	CLONE_NEWPID   0x20000000
#define	MS_REC   0x4000
#define	CVMFS_HAS_UNSHARE   1

Functions
int	CheckNamespaceFeatures ()
NamespaceFailures	CreateUserNamespace (uid_t map_uid_to, gid_t map_gid_to)
bool	BindMount (const std::string &from, const std::string &to)
bool	ProcMount (const std::string &to)
bool	CreateMountNamespace ()
static void	anonymous_namespace{namespace.cc}::Reaper (int, siginfo_t *, void *)
bool	CreatePidNamespace (int *fd_parent)

Macro Definition Documentation

#define CLONE_NEWPID   0x20000000

Definition at line 26 of file namespace.cc.

Referenced by CreatePidNamespace().

#define CLONE_NEWUSER   0x10000000

This file is part of the CernVM File System.

Definition at line 23 of file namespace.cc.

Referenced by CreateUserNamespace().

#define CVMFS_HAS_UNSHARE   1

Definition at line 33 of file namespace.cc.

#define MS_REC   0x4000

Definition at line 29 of file namespace.cc.

Referenced by BindMount().

Function Documentation

bool BindMount	(	const std::string &	from,
		const std::string &	to
	)

Definition at line 100 of file namespace.cc.

Referenced by publish::CmdEnter::CreateUnderlay(), and publish::CmdEnter::MountCvmfs().

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int CheckNamespaceFeatures

(

)

Definition at line 42 of file namespace.cc.

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bool CreateMountNamespace

(

)

Definition at line 120 of file namespace.cc.

Referenced by anonymous_namespace{cmd_enter.cc}::EnterRootContainer().

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bool CreatePidNamespace

(

int *

fd_parent

)

The fd_parent file descriptor, if passed, is the read end of a pipe whose write end is connected to the parent process. This gives the namespace's init process a means to know its pid in the context of the parent namespace.

Definition at line 155 of file namespace.cc.

Referenced by anonymous_namespace{cmd_enter.cc}::EnterRootContainer().

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NamespaceFailures CreateUserNamespace	(	uid_t	map_uid_to,
		gid_t	map_gid_to
	)

Definition at line 60 of file namespace.cc.

Referenced by anonymous_namespace{cmd_enter.cc}::EnterRootContainer(), and publish::CmdEnter::Main().

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bool ProcMount

(

const std::string &

to

)

Definition at line 110 of file namespace.cc.

Referenced by publish::CmdEnter::Main().

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