pSOSystem System Calls - Read

add_ni pNA+ System Calls
add_ni Adds a network interface.
#include
long add_ni(
struct ni_init *ni /* network interface */
)
Description
Arguments
This system call is used to dynamically add a network interface to the pNA+ network
manager. The characteristics of the network interface are specified in the data
structure pointed to by ni.
This routine calls the network interface driver's NI_INIT routine for driver
initialization.
ni Points to an ni_init structure. The structure ni_init is defined in
the file and has the following format:
struct ni_init {
int (*entry)(); /* address of NI entry point */
int ipadd; /* IP address */
int mtu; /* maximum transmission length */
int hwalen; /* length of hardware address */
int flags; /* interface flags */
int subnetaddr; /* subnet mask */
int dstipaddr; /* Dest. address in Point-to Point NI */
int reserved[1]; /* reserved for future use */
};
This structure cannot be packed. The flags element can contain one
or more of the following symbolic constants (defined in pna.h), using
the syntax:
IFF_BROADCAST | IFF_RAWMEM
Symbolic Constant Description
IFF_BROADCAST NI can broadcast.
IFF_EXTLOOPBACK NI uses external loopback.
IFF_INITDOWN NI must be initialized in DOWN state. Default
is UP state.
4-4 pSOSystem System Calls