linuxUtils

func CreateUsernsProcess ¶

func CreateUsernsProcess(idMap *specs.LinuxIDMapping, execFunc func(), cwd string, newMountNs bool) (int, func(), error)

CreateUsernsProcess forks the current process into a new Linux user-namespace, using the given the ID mapping (common to both uid and gid). Returns the pid of the new process and a "kill" function (so that the caller can kill the child when desired). The new process executes the given function.

NOTE: adapted from github.com/containers/storage/drivers/overlay

func GetDistro ¶

func GetDistro() (string, error)

Obtain system's linux distribution.

func GetDistroPath ¶

func GetDistroPath(rootfs string) (string, error)

Obtain system's linux distribution in the passed rootfs.

func GetKernelRelease ¶

func GetKernelRelease() (string, error)

GetKernelRelease returns the kernel release (e.g., "4.18")

func GetLinuxHeaderPath ¶

func GetLinuxHeaderPath(distro string) (string, error)

Obtain location of kernel-headers for a given linux distro.

func KernelCurrentVersionCmp ¶

func KernelCurrentVersionCmp(k1Major, k1Minor int) (int, error)

Compares the given kernel version versus the current kernel version. Returns 0 if versions are equal, 1 if the current kernel has higher version than the given one, -1 otherwise.

func KernelModSupported ¶

func KernelModSupported(mod string) (bool, error)

KernelModSupported returns nil if the given module is loaded in the kernel.

func ParseKernelRelease ¶

func ParseKernelRelease(rel string) (int, int, error)

Parses the kernel release string (obtained from GetKernelRelease()) and returns the major and minor numbers.