Struct pcarp::block::ObsoletePacket

pub struct ObsoletePacket<'a> {
    pub interface_id: InterfaceId,
    pub drops_count: u16,
    pub timestamp: u64,
    pub captured_len: u32,
    pub packet_len: u32,
    pub packet_data: Range<usize>,
    pub options: &'a [u8],
}

Contains a single captured packet, or a portion of it. It is OBSOLETE, and superseded by the Enhanced Packet Block.

The Packet Block is obsolete, and MUST NOT be used in new files. Use the Enhanced Packet Block or Simple Packet Block instead. This section is for historical reference only.

A Packet Block was a container for storing packets coming from the network.

This documentation is copyright (c) 2018 IETF Trust and the persons identified as the authors of this document. All rights reserved. Please see the linked document for the full copyright notice.

Fields

interface_id: InterfaceId

Specifies the interface this packet comes from; the correct interface will be the one whose Interface Description Block (within the current Section of the file) is identified by the same number (see Section 4.2) of this field. The interface ID MUST be valid, which means that an matching interface description block MUST exist.

drops_count: u16

A local drop counter. It specifies the number of packets lost (by the interface and the operating system) between this packet and the preceding one. The value xFFFF (in hexadecimal) is reserved for those systems in which this information is not available.

timestamp: u64

Timestamp of the packet. The format of the timestamp is the same as was already defined for the Enhanced Packet Block (Section 4.3).

captured_len: u32

Number of octets captured from the packet (i.e. the length of the Packet Data field). It will be the minimum value among the Original Packet Length and the snapshot length for the interface (SnapLen, defined in Figure 10). The value of this field does not include the padding octets added at the end of the Packet Data field to align the Packet Data field to a 32-bit boundary.

packet_len: u32

Actual length of the packet when it was transmitted on the network. It can be different from Captured Packet Length if the packet has been truncated by the capture process.

packet_data: Range<usize>

The data coming from the network, including link-layer headers. The actual length of this field is Captured Packet Length plus the padding to a 32-bit boundary. The format of the link-layer headers depends on the LinkType field specified in the Interface Description Block (see Section 4.2) and it is specified in the entry for that format in the the tcpdump.org link-layer header types registry.

options: &'a [u8]

Optionally, a list of options (formatted according to the rules defined in Section 3.5) can be present.

Trait Implementations

impl<'a> Clone for ObsoletePacket<'a>

fn clone(&self) -> ObsoletePacket<'a>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<'a> Debug for ObsoletePacket<'a>

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

Formats the value using the given formatter.

impl<'a> From<ObsoletePacket<'a>> for Block<'a>

fn from(x: ObsoletePacket<'a>) -> Self

Converts to this type from the input type.

impl<'a> PartialEq<ObsoletePacket<'a>> for ObsoletePacket<'a>

fn eq(&self, other: &ObsoletePacket<'a>) -> bool

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

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

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

impl<'a> StructuralPartialEq for ObsoletePacket<'a>