DLPI Primitives
Primitives to Handle XID and TEST Operations
The message consists of one M_PROTO message block, followed by zero or more M_DATA blocks containing zero or more bytes of data. The message structure is as follows:
typedef struct | { |
ulong | dl_primitive; |
ulong | dl_flag; |
ulong | dl_dest_addr_length; |
ulong | dl_dest_addr_offset; |
ulong | dl_src_addr_length; |
ulong | dl_src_addr_offset; |
}dl_test_ind_t;
Parameters
dl_primitive
DL_TEST_IND
dl_flag
flag values associated with the received TEST frame:
DL_POLL_FINAL indicates if the poll/final bit is set.
dl_dest_addr_length
length of the DLSAP address of the destination DLS user. If the destination user is implemented using DLPI, this address is the full DLSAP address returned on the DL_BIND_ACK.
dl_dest_addr_offset
offset from the beginning of the M_PROTO message block where the destination DLSAP address begins.
dl_src_addr_length
length of the source DLSAP address. If the source user is implemented using DLPI, this address is the full DLSAP address returned on the DL_BIND_ACK.
dl_src_addr_offset
offset from the beginning of the M_PROTO message block where the source DLSAP address begins.
State
The message is valid in states DL_IDLE and DL_DATAXFER.
New State
Chapter 2 | 129 |