illumos: manual page: net

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

NAME

net_phygetnext - search through the current list of network interfaces

SYNOPSIS

#include <sys/neti.h>

phy_if_t net_phygetnext(const net_data_t net, const phy_if_t ifp);

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 this function or
net_phylookup(9F).

DESCRIPTION

The net_phygetnext() function searches through all of the network
interfaces that a network protocol "owns". To start searching through all
of the interfaces owned by a protocol, a value of 0 should be passed
through as the value of ifp. When 0 is returned by this function, the
last of the interfaces owned by this protocol has been reached.

When called successfully, the value returned represents a network
interface that exists, at the time of the call, within the scope of the
network interface. This value is only guaranteed to be unique for a name
within the scope of the network protocol.

EXAMPLES

net_data_t net;
phy_if_t ifp;
char buffer[32];

net = net_protocol_lookup("inet");

if (net != NULL) {
for (ifp = net_phygetnext(net, 0); ifp != 0;
ifp = net_phygetnext(net, ifp)) {
/* Do something with ifp */
if (net_getifname(net, ifp, buffer,
sizeof(buffer) >= 0)
printf("Interface %s0, buffer);
}
}

RETURN VALUES

The net_phygetnext() function returns -1 if it is not supported by the
network protocol or 0 if an attempt to go beyond the last network
interface is made. Otherwise, it returns a value representing a
network interface.

CONTEXT

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

ATTRIBUTES