Struct netsim_embed::gre::Gre

source ·

pub struct Gre {Show 15 fields
    pub checksum_present: u8,
    pub routing_present: u8,
    pub key_present: u8,
    pub sequence_present: u8,
    pub strict_source_route: u8,
    pub recursion_control: u8,
    pub zero_flags: u8,
    pub version: u8,
    pub protocol_type: u16,
    pub checksum: Vec<U16BE, Global>,
    pub offset: Vec<U16BE, Global>,
    pub key: Vec<U32BE, Global>,
    pub sequence: Vec<U32BE, Global>,
    pub routing: Vec<u8, Global>,
    pub payload: Vec<u8, Global>,
}

Expand description

GRE (Generic Routing Encapsulation) Packet.

See RFCs 1701, 2784, 2890, 7676, 2637

Current status of implementation:

RFC 1701 except for source routing and checksums. Processing a source routed packet will panic. Checksums are able to be inspected, but not calculated or verified.
RFC 2784 except for checksums (same as 1701 status). Note that it is possible to generate noncompliant packets by setting any of the reserved bits (but see 2890).
RFC 2890 implemented.
RFC 7676 has no packet changes - compliance is up to the user.
RFC 2637 not implemented.

Note that routing information from RFC 1701 is not implemented, packets with routing_present true will currently cause a panic.

Fields§

§checksum_present: u8§routing_present: u8§key_present: u8§sequence_present: u8§strict_source_route: u8§recursion_control: u8§zero_flags: u8§version: u8§protocol_type: u16§checksum: Vec<U16BE, Global>§offset: Vec<U16BE, Global>§key: Vec<U32BE, Global>§sequence: Vec<U32BE, Global>§routing: Vec<u8, Global>§payload: Vec<u8, Global>