Struct IdMapping 

pub struct IdMapping {
    pub container_id: u32,
    pub host_id: u32,
    pub count: u32,
}

UID/GID mapping configuration for user namespaces

Maps a range of UIDs/GIDs inside the container to a range outside

Fields

container_id: u32

ID inside the container

host_id: u32

ID outside the container (on the host)

count: u32

Number of IDs to map

Implementations

impl IdMapping

pub fn new(container_id: u32, host_id: u32, count: u32) -> Self

Create a new ID mapping with validation

pub fn validate(&self, allow_host_root: bool) -> Result<()>

Validate the mapping for safety.

Rejects zero count, overflow in ID ranges, and excessively large mappings that could map the entire host UID/GID space.

pub fn rootless() -> Self

Create a mapping for root inside container to current user outside

Trait Implementations

impl Clone for IdMapping

fn clone(&self) -> IdMapping

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for IdMapping

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl From<&IdMapping> for OciIdMapping

fn from(mapping: &IdMapping) -> Self

Converts to this type from the input type.

impl PartialEq for IdMapping

fn eq(&self, other: &IdMapping) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Eq for IdMapping

impl StructuralPartialEq for IdMapping