Struct capsules::ieee802154::framer::FrameInfo

struct FrameInfo {
    frame_type: FrameType,
    mac_payload_offset: usize,
    data_offset: usize,
    data_len: usize,
    mic_len: usize,
    security_params: Option<(SecurityLevel, [u8; 16], [u8; 13])>,
}

This contains just enough information about a frame to determine

1. How to encode it once its payload has been finalized
2. The sizes of the mac header, payload and MIC tag length to be added

These offsets are relative to the PSDU or buf[radio::PSDU_OFFSET..] so that the mac frame length is data_offset + data_len

Fields

frame_type: FrameType

mac_payload_offset: usize

data_offset: usize

data_len: usize

mic_len: usize

security_params: Option<(SecurityLevel, [u8; 16], [u8; 13])>

Methods

impl FrameInfo

fn unsecured_length(&self) -> usize

Current size of the frame, not including the MAC footer or the MIC

fn secured_length(&self) -> usize

Current size of the frame, not including the MAC footer but including the MIC

fn ccm_encrypt_ranges(&self) -> (usize, usize)

Compute the offsets in the buffer for the a data and m data fields in the CCM* authentication and encryption procedures which depends on the frame type and security levels. Returns the (offset, len) of the m data fields, not including the MIC. The a data is always the remaining prefix of the header, so it can be determined implicitly.

Trait Implementations

impl Copy for FrameInfo

impl Clone for FrameInfo

fn clone(&self) -> FrameInfo

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Eq for FrameInfo

fn assert_receiver_is_total_eq(&self)

impl PartialEq for FrameInfo

fn eq(&self, __arg_0: &FrameInfo) -> bool

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

fn ne(&self, __arg_0: &FrameInfo) -> bool

This method tests for !=.

impl Debug for FrameInfo

fn fmt(&self, __arg_0: &mut Formatter) -> Result

Formats the value using the given formatter.