Enum etherparse::ReadError

pub enum ReadError {
    IoError(Error),
    UnexpectedEndOfSlice(usize),
    DoubleVlanOuterNonVlanEtherType(u16),
    IpUnsupportedVersion(u8),
    Ipv4UnexpectedVersion(u8),
    Ipv4HeaderLengthBad(u8),
    Ipv4TotalLengthTooSmall(u16),
    Ipv6UnexpectedVersion(u8),
    Ipv6TooManyHeaderExtensions,
    Ipv6HopByHopHeaderNotAtStart,
    IpAuthenticationHeaderTooSmallPayloadLength(u8),
    TcpDataOffsetTooSmall(u8),
}

Errors that can occur when reading.

Variants

IoError(Error)

Tuple Fields

0: Error

Whenever an std::io::Error gets triggerd during a write it gets forwarded via this enum value.

UnexpectedEndOfSlice(usize)

Tuple Fields

0: usize

Error when an unexpected end of a slice was reached even though more data was expected to be present (expected minimum size as argument).

DoubleVlanOuterNonVlanEtherType(u16)

Tuple Fields

0: u16

Error when a double vlan tag was expected but the ether type of the the first vlan header does not an vlan header ether type. The value is the unexpected ether type value in the outer vlan header.

IpUnsupportedVersion(u8)

Tuple Fields

0: u8

Error when the ip header version is not supported (only 4 & 6 are supported). The value is the version that was received.

Ipv4UnexpectedVersion(u8)

Tuple Fields

0: u8

Error when the ip header version field is not equal 4. The value is the version that was received.

Ipv4HeaderLengthBad(u8)

Tuple Fields

0: u8

Error when the ipv4 header length is smaller then the header itself (5).

Ipv4TotalLengthTooSmall(u16)

Tuple Fields

0: u16

Error when the total length field is too small to contain the header itself.

Ipv6UnexpectedVersion(u8)

Tuple Fields

0: u8

Error when then ip header version field is not equal 6. The value is the version that was received.

Ipv6TooManyHeaderExtensions

Error when more then 7 header extensions are present (according to RFC82000 this should never happen).

Ipv6HopByHopHeaderNotAtStart

Error if the ipv6 hop by hop header does not occur directly after the ipv6 header (see rfc8200 chapter 4.1.)

IpAuthenticationHeaderTooSmallPayloadLength(u8)

Tuple Fields

0: u8

Error if the header length in the ip authentication header is smaller then the minimum size of 1.

TcpDataOffsetTooSmall(u8)

Tuple Fields

0: u8

Error given if the data_offset field in a TCP header is smaller then the minimum size of the tcp header itself.

Implementations

impl ReadError

pub fn add_slice_offset(self, offset: usize) -> ReadError

Adds an offset value to the UnexpectedEndOfSlice error.

pub fn io_error(self) -> Option<Error>

Returns the std::io::Error value if the ReadError is an IoError. Otherwise `None is returned.

pub fn unexpected_end_of_slice_min_expected_size(self) -> Option<usize>

Returns the expected minimum size if the error is an UnexpectedEndOfSlice.

Trait Implementations

impl Debug for ReadError

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

Formats the value using the given formatter.

impl Display for ReadError

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

Formats the value using the given formatter.

impl Error for ReadError

fn source(&self) -> Option<&(dyn Error + 'static)>

The lower-level source of this error, if any.

fn backtrace(&self) -> Option<&Backtrace>

🔬 This is a nightly-only experimental API. (backtrace)

Returns a stack backtrace, if available, of where this error occurred.

fn description(&self) -> &str

👎 Deprecated since 1.42.0:

use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎 Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

impl From<Error> for ReadError

fn from(err: Error) -> ReadError

Performs the conversion.