Enum CaError 

#[non_exhaustive]
pub enum CaError {
    NoCaDescriptor {
        program_number: u16,
    },
    Io(Error),
    Serialize(Error),
    PmtParse(Error),
    Cat(Error),
}

Errors from the managed CAS-layer API (Driver::add_service and friends, #763).

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

NoCaDescriptor

The PMT carries no CA_descriptor (ETSI EN 300 468 §6.2.16, tag 0x09) at programme or elementary-stream level — there is nothing for the CAM to descramble, so no ca_pmt is built or sent.

Fields

program_number: u16

The programme whose PMT carried no CA info.

Io(Error)

Sending the built ca_pmt to the device failed.

Serialize(Error)

The ca_pmt projected from the caller’s PMT has no valid wire encoding (a program_info_length/ES_info_length or version_number out of its spec range — e.g. a source PMT whose descriptor loop is corrupted past the section end) or its stored raw PMT no longer re-parses. r10-W-20: Driver::add_service and the re-query timer must reject such a PMT as an Err value rather than panic inside the serialization.

PmtParse(Error)

The raw PMT bytes stored at add_service time no longer re-parse on a re-query tick (corruption of the caller’s own state); the re-query is reported as an error instead of panicking (r10-W-20). Shares the dvb_si::error::Error payload of the Cat arm.

Cat(Error)

The CAT’s descriptor loop (ISO/IEC 13818-1 §2.4.4.5) carried a truncated CA_descriptor (EN 300 468 §6.2.16) — Driver::set_cat could not extract the CAID/EMM-PID map.

Trait Implementations

impl Debug for CaError

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

Formats the value using the given formatter.

impl Display for CaError

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

Formats the value using the given formatter.

impl Error for CaError

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

Returns the lower-level source of this error, if any.

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

fn provide<'a>(&'a self, request: &mut Request<'a>)

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

Provides type-based access to context intended for error reports.

impl From<Error> for CaError

fn from(source: Error) -> Self

Converts to this type from the input type.

impl From<Error> for CaError

fn from(source: Error) -> Self

Converts to this type from the input type.

impl From<Error> for CaError

fn from(source: Error) -> Self

Converts to this type from the input type.