Module option

Constants and functions for CoAP options

Option numbers are expressed as u16 values as that is the range assigned at IANA, and also the practicably expressible range.

Enums

• Criticality
  Classification of options by their default end-point behavior
• ProxySafety
  Classification of options by their default proxy behavior

Constants

• ACCEPT
  Accept
• BLOCK1
  Block1
• BLOCK2
  Block2
• CONTENT_FORMAT
  Content-Format
• ECHO
  Echo
• EDHOC
  EDHOC
• ETAG
  ETag
• HOP_LIMIT
  Hop-Limit
• IF_MATCH
  If-Match
• IF_NONE_MATCH
  If-None-Match
• LOCATION_PATH
  Location-Path
• LOCATION_QUERY
  Location-Query
• MAX_AGE
  Max-Age
• NO_RESPONSE
  No-Response
• OBSERVE
  Observe
• OCF_ACCEPT_CONTENT_FORMAT_VERSION
  OCF-Accept-Content-Format-Version
• OCF_CONTENT_FORMAT_VERSION
  OCF-Content-Format-Version
• OSCORE
  OSCORE
• PROXY_SCHEME
  Proxy-Scheme
• PROXY_URI
  Proxy-Uri
• Q_BLOCK1
  Q-Block1
• Q_BLOCK2
  Q-Block2
• REQUEST_TAG
  Request-Tag
• SCP82_PARAMS
  SCP82-Params
• SIZE1
  Size1
• SIZE2
  Size2
• URI_HOST
  Uri-Host
• URI_PATH
  Uri-Path
• URI_PORT
  Uri-Port
• URI_QUERY
  Uri-Query

Functions

• get_criticality
  Extract the option’s critical/elective bit
• get_proxy_safety
  Extract the option’s proxy safety bit(s)
• to_name
  Find the name for a CoAP option, if any is known