Struct SetupCapabilities 

pub struct SetupCapabilities { /* private fields */ }

DTLS roles the local handshake implementation can hold.

Kept in the SDP crate because offer/answer has to refuse an impossible role before a media worker starts. It describes capability only; sockets and handshakes remain in sipx-media.

Implementations

impl SetupCapabilities

pub const fn both() -> Self

Both DTLS roles, which the default handshake implementation supports.

pub const fn client_only() -> Self

Only the active/client role.

pub const fn server_only() -> Self

Only the passive/server role.

pub const fn neither() -> Self

No usable DTLS role. Useful for representing a feature or adapter that is unavailable.

pub fn answer_to(self, offered: Setup) -> Result<Setup, SetupRoleError>

Select the answer to an offered setup value.

actpass prefers active, as RFC 5763 §5 recommends, but a server-only implementation may legally select passive. A fixed offer can be answered only with its complement.

Errors

Returns SetupRoleError when this endpoint cannot hold the required role.

pub fn from_answer( self, answered: Option<Setup>, ) -> Result<Setup, SetupRoleError>

Resolve this offerer’s local role from the answer.

Errors

Returns a typed refusal for a missing or unresolved answer and when the complementary role is not available locally. No caller needs to start a handshake to discover this.

Trait Implementations

impl Clone for SetupCapabilities

fn clone(&self) -> SetupCapabilities

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SetupCapabilities

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

Formats the value using the given formatter.

impl Default for SetupCapabilities

fn default() -> Self

Returns the “default value” for a type.

impl PartialEq for SetupCapabilities

fn eq(&self, other: &SetupCapabilities) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for SetupCapabilities

impl Eq for SetupCapabilities

impl StructuralPartialEq for SetupCapabilities