pub enum SvcParamKey {
    Mandatory,
    Alpn,
    NoDefaultAlpn,
    Port,
    Ipv4Hint,
    EchConfig,
    Ipv6Hint,
    Key(u16),
    Key65535,
    Unknown(u16),
}
Expand description
14.3.2.  Initial contents

  The "Service Binding (SVCB) Parameter Registry" shall initially be
  populated with the registrations below:

  +=============+=================+======================+===========+
  | Number      | Name            | Meaning              | Reference |
  +=============+=================+======================+===========+
  | 0           | mandatory       | Mandatory keys in    | (This     |
  |             |                 | this RR              | document) |
  +-------------+-----------------+----------------------+-----------+
  | 1           | alpn            | Additional supported | (This     |
  |             |                 | protocols            | document) |
  +-------------+-----------------+----------------------+-----------+
  | 2           | no-default-alpn | No support for       | (This     |
  |             |                 | default protocol     | document) |
  +-------------+-----------------+----------------------+-----------+
  | 3           | port            | Port for alternative | (This     |
  |             |                 | endpoint             | document) |
  +-------------+-----------------+----------------------+-----------+
  | 4           | ipv4hint        | IPv4 address hints   | (This     |
  |             |                 |                      | document) |
  +-------------+-----------------+----------------------+-----------+
  | 5           | echconfig       | Encrypted            | (This     |
  |             |                 | ClientHello info     | document) |
  +-------------+-----------------+----------------------+-----------+
  | 6           | ipv6hint        | IPv6 address hints   | (This     |
  |             |                 |                      | document) |
  +-------------+-----------------+----------------------+-----------+
  | 65280-65534 | keyNNNNN        | Private Use          | (This     |
  |             |                 |                      | document) |
  +-------------+-----------------+----------------------+-----------+
  | 65535       | key65535        | Reserved ("Invalid   | (This     |
  |             |                 | key")                | document) |
  +-------------+-----------------+----------------------+-----------+

parsing done via:
  *  a 2 octet field containing the SvcParamKey as an integer in
     network byte order.  (See Section 14.3.2 for the defined values.)

Variants

Mandatory

Mandatory keys in this RR

Alpn

Additional supported protocols

NoDefaultAlpn

No support for default protocol

Port

Port for alternative endpoint

Ipv4Hint

IPv4 address hints

EchConfig

Encrypted ClientHello info

Ipv6Hint

IPv6 address hints

Key(u16)

Private Use

Key65535

Reserved (“Invalid key”)

Unknown(u16)

Unknown

Trait Implementations

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