Enum netlink_packet_sock_diag::unix::nlas::Nla

pub enum Nla {
    Name(String),
    Vfs(Vfs),
    Peer(u32),
    PendingConnections(Vec<u32>),
    ReceiveQueueLength(u32, u32),
    MemInfo(MemInfo),
    Shutdown(u8),
    Other(DefaultNla),
}

Variants

Name(String)

Tuple Fields

0: String

Path to which the socket was bound. This attribute is known as UNIX_DIAG_NAME in the kernel.

Vfs(Vfs)

Tuple Fields

0: Vfs

VFS information for this socket. This attribute is known as UNIX_DIAG_VFS in the kernel.

Peer(u32)

Tuple Fields

0: u32

Inode number of the socket’s peer. This attribute is reported for connected socket only. This attribute is known as UNIX_DIAG_PEER in the kernel.

PendingConnections(Vec<u32>)

Tuple Fields

0: Vec<u32>

The payload associated with this attribute is an array of inode numbers of sockets that have passed the connect(2) call, but haven’t been processed with accept(2) yet. This attribute is reported for listening sockets only. This attribute is known as UNIX_DIAG_ICONS in the kernel.

ReceiveQueueLength(u32, u32)

Tuple Fields

0: u32

1: u32

This attribute corresponds to the UNIX_DIAG_RQLEN. It reports the length of the socket receive queue, and the queue size limit. Note that for listening sockets the receive queue is used to store actual data sent by other sockets. It is used to store pending connections. So the meaning of this attribute differs for listening sockets.

For listening sockets:

• the first the number is the number of pending connections. It should be equal to Nla::PendingConnections value’s length.
• the second number is the backlog queue maximum length, which equals to the value passed as the second argument to listen(2)

For other sockets:

• the first number is the amount of data in receive queue (note: I am not sure if it is the actual amount of data or the amount of memory allocated. The two might differ because of memory allocation strategies: more memory than strictly necessary may be allocated for a given sk_buff)
• the second number is the memory used by outgoing data. Note that strictly UNIX sockets don’t have a send queue, since the data they send is directly written into the destination socket receive queue. But the memory allocated for this data is still counted from the sender point of view.

MemInfo(MemInfo)

Tuple Fields

0: MemInfo

Socket memory information. See MemInfo for more details.

Shutdown(u8)

Tuple Fields

0: u8

Shutown state: one of SHUT_RD, SHUT_WR or SHUT_RDWR

Other(DefaultNla)

Tuple Fields

0: DefaultNla

Unknown attribute

Trait Implementations

impl Clone for Nla

fn clone(&self) -> Nla

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Nla

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

Formats the value using the given formatter.

impl Nla for Nla

fn value_len(&self) -> usize

fn emit_value(&self, buffer: &mut [u8])

fn kind(&self) -> u16

fn is_nested(&self) -> bool

fn is_network_byteorder(&self) -> bool

impl<'a, T: AsRef<[u8]> + ?Sized> Parseable<NlaBuffer<&'a T>> for Nla

fn parse(buf: &NlaBuffer<&'a T>) -> Result<Self, DecodeError>

Deserialize the current type.

impl PartialEq<Nla> for Nla

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

This method tests for self and other values to be equal, and is used by ==.

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

This method tests for !=.

impl Eq for Nla

impl StructuralEq for Nla

impl StructuralPartialEq for Nla