Module packet_formats::ipv4

Parsing and serialization of IPv4 packets.

The IPv4 packet format is defined in RFC 791 Section 3.1.

Modules

• options
  Parsing and serialization of IPv4 options.
• testutil
  IPv4 packet parsing and serialization test utilities.

Structs

• HeaderPrefix
  The prefix of the IPv4 header which precedes any header options and the body.
• Ipv4OnlyMeta
  Packet metadata which is present only in the IPv4 protocol’s packet format.
• Ipv4OptionsTooLongError
  Options provided to Ipv4PacketBuilderWithOptions::new exceed MAX_OPTIONS_LEN when serialized.
• Ipv4Packet
  An IPv4 packet.
• Ipv4PacketBuilder
  A builder for IPv4 packets.
• Ipv4PacketBuilderWithOptions
  A PacketBuilder for Ipv4 Packets but with options.
• Ipv4PacketRaw
  A partially parsed and not yet validated IPv4 packet.

Enums

• Ipv4FragmentType
  The type of an IPv4 packet fragment.

Constants

• HDR_PREFIX_LEN
  The length of the fixed prefix of an IPv4 header (preceding the options).
• MAX_HDR_LEN
  The maximum length of an IPv4 header.
• MAX_OPTIONS_LEN
  The maximum length for options in an IPv4 header.

Traits

• Ipv4Header
  Provides common access to IPv4 header fields.