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WSA_QOS_EFILTERTYPE
FilterType selects the address-and-port representation inside FILTERSPEC
WSA_QOS_EFILTERTYPE means the FilterType discriminator does not name a supported RSVP filter representation. The discriminator tells the provider whether the union contains an IPv4, IPv6, general-port-identifier, or IPv6 flow-label form; a valid address stored under the wrong discriminator is still an invalid object.
Validate the filter type before reading its union member, then compare the chosen structure with the session address family. Check network byte order for ports and protocol-specific identifiers. This code is narrower than a reservation-style error: changing Wildcard, Fixed, or Shared Explicit style does not correct a FILTERSPEC whose internal type and payload disagree.
FILTERSPEC fields to inspect
- FilterType enumeration value.
- IPv4, IPv6, GPI, or flow-label union member.
- Address family of the socket session.
- Port, protocol identifier, and byte order.
References
- Microsoft: FilterType enumeration
- Microsoft: RSVP_FILTERSPEC union
- Microsoft: available RSVP filter structures
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