NET_GETLIFADDR(9F) Kernel Functions for Drivers NET_GETLIFADDR(9F)

NAME

net_getlifaddr - determine a network address for a given interface

SYNOPSIS

#include <sys/neti.h>

int net_getlifaddr(const net_data_t net, const phy_if_t ifp,
const net_if_t lif, int const type,
struct sockaddr* storage);

INTERFACE LEVEL

illumos DDI specific (illumos DDI).

PARAMETERS

net
value returned from a successful call to
net_protocol_lookup(9F).


ifp
value returned from a successful call to net_phylookup(9F)
or net_phygetnext(9F), indicating which network interface
the information should be returned from.


lif
indicates the logical interface from which to fetch the
address.


type
indicates what type of address should be returned. See
below for more details on this field.


storage
pointer to an area of memory to store the address data.

DESCRIPTION

The net_getlifaddr() function retrieves the address information for
each logical interface. Each call to net_getlifaddr() requires that
the caller pass a pointer to an array of address information types to
retrieve, and an accompanying pointer to an array of pointers to
struct sockaddr structures to which to copy the address information.
See net_lifgetnext(9F) for an example on how to use this function.


Each member of the address type array should be one of the values
listed here.

NA_ADDRESS
Return the network address associated with the
logical interface (lif) that belongs to the network
interface (ifp).


NA_PEER
Return the address assigned to the remote host for
point to point network interfaces for the given
network/logical interface.


NA_BROADCAST
Return the broadcast address assigned to the given
network/logical interface for network interfaces that
support broadcast packets.


NA_NETMASK
Return the netmask associated with the given
network/logical interface for network interfaces that
support broadcast packets.

RETURN VALUES

The net_getlifaddr() function returns:

-1
The network protocol does not support this function.


0
Successful completion.


1
Unsuccessful.

CONTEXT

The net_getifaddr() function may be called from user, kernel, or
interrupt context.

ATTRIBUTES

See attributes(7) for descriptions of the following attributes:


+--------------------+-----------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+--------------------+-----------------+
|Interface Stability | Committed |
+--------------------+-----------------+

SEE ALSO

net_lifgetnext(9F), net_phygetnext(9F), net_phylookup(9F),
net_protocol_lookup(9F)

October 13, 2008 NET_GETLIFADDR(9F)