NET_INSTANCE_NOTIFY_REGISTER(9F) Kernel Functions for Drivers
NAME
net_instance_notify_register, net_instance_notify_unregister -
add/delete a function to be called for changes to an instance
SYNOPSIS
#include <sys/hook.h>
#include <sys/neti.h>
int net_instance_notify_register(
net id_t net_id,
hook_notify_fn_t *
callback,
void *
arg);
int net_instance_notify_unregister(
net id_t net_id,
hook_notify_fn_t *
callback);
typedef int (*
hook_notify_fn_t)(
hook_notify_cmd_t command, void *
arg,
const char *
name1,
const char *
name2,
const char *
name3);
INTERFACE LEVEL
illumos DDI specific (illumos DDI).
PARAMETERS
netid value from either
callback registered with
net_instance_register() or
net_zoneidtonetid().
callback function to call when a change occurs.
arg pointer to pass into the
callback() function when a
change occurs.
DESCRIPTION
The
net_instance_notify_register() function registers a function
represented by the pointer
callback to be called when there is a new
instance added or removed from the given network instance
(represented by
netid.)
The
net_instance_notify_unregister() function indicates that there is
no longer any desire to receive notification of changes to the
instance through function calls to the specified
callback.
Multiple
callback functions may be registered through this interface.
The same set of parameters is passed to each
callback function. The
memory referenced through the pointers passed to the
callback should
be treated as pointing to read-only memory. Changing this data is
strictly prohibited.
The function that is called must not block any other events.
The arguments passed through to the
callback are as follows (the
command is either
HN_REGISTER or
HN_UNREGISTER):
name1 is the
netid represented as a string.
name2 is
NULL.
name3 is the name of the instance being added/removed
RETURN VALUES
If these functions succeed, 0 is returned. Otherwise, the following
error is returned:
EEXIST the given callback function is already registered.
CONTEXT
These functions may be called from user or kernel context.
ATTRIBUTES
See
attributes(7) for descriptions of the following attributes:
+--------------------+-----------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+--------------------+-----------------+
|Interface Stability | Committed |
+--------------------+-----------------+
SEE ALSO
attributes(7),
net_instance_register(9F),
net_instance_unregister(9F),
net_zoneidtonetid(9F) October 30, 2008
NET_INSTANCE_NOTIFY_REGISTER(9F)
