Requests the data link service (DLS) provider to unbind a data link service access point (DLSAP).
The message consists of one
M_PROTO message block, which contains the following
This structure is defined in /usr/include/sys/dlpi.h.
The DL_UNBIND_REQ primitive requests that the DLS provider unbind the DLSAP that had been bound by a previous DL_BIND_REQ primitive. If one or more DLSAPs were bound to the stream with a DL_SUBS_BIND_REQ primitive and have not been unbound with a DL_SUBS_UNBIND_REQ primitive, the DL_UNBIND_REQ primitive unbinds all the subsequent DLSAPs for that stream along with the DLSAP bound with the previous DL_BIND_REQ primitive.
At the successful completion of the request, the DLS user can issue a new DL_BIND_REQ primitive for a potentially new DLSAP.
|dl_primitive||Specifies the DL_UNBIND_REQ primitive.|
|Valid||The primitive is valid in the DL_IDLE state.|
|New||The resulting state is DL_UNBIND_PENDING.|
|Successful||The DL_OK_ACK primitive is sent to the DLS user, and the resulting state is DL_UNBOUND.|
|Unsuccessful||The DL_ERROR_ACK primitive is returned, and the resulting state is unchanged.|
|DL_OUTSTATE||Indicates the primitive was issued from an invalid state.|
|DL_SYSERR||Indicates a system error occurred. The system error is indicated in the DL_ERROR_ACK primitive.|
This primitive is part of Base Operating System (BOS) Runtime.
The DL_BIND_REQ primitive, DL_ERROR_ACK primitive, DL_OK_ACK primitive, DL_SUBS_BIND_REQ primitive, DL_SUBS_UNBIND_REQ primitive.