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AIX Version 4.3 Communications Technical Reference, Volume 1

DLC_ADD_GRP ioctl Operation for DLC

The following parameter block adds a group or multicast receive address:

struct dlc_add_grp
{
   ulong_t gdlc_sap_corr;   /* GDLC SAP correlator */
   ulong_t grp_addr_len;   /* group address length */
   uchar_t grp_addr[DLC_MAX_ADDR]; /* grp addr to be added */
};

The fields of this ioctl operation are:

gdlc_sap_corr Contains the generic data link control (GDLC) service access point (SAP) Correlator being requested to add a group or multicast address to a port.
grp_addr_len Contains the byte length of the group or multicast address to be added.
grp_addr Contains the group or multicast address value to be added.

Implementation Specifics

The DLC_ADD_GRP ioctl operation is selectable through the fp_ioctl kernel service or the ioctl subroutine. It can be called from the process environment only.

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