Kernel Functions for Drivers net_instance_notify_register(9F)
NAME
net_instance_notify_register, net_instance_notify_unregister
- add/delete a function to be called for changes to an
instanceSYNOPSIS
#include
#include
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
Solaris DDI specific (Solaris DDI).PARAMETERS
netid value from either callback registered withnet_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 ofchanges to the instance through function calls to the speci-
fied 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 asSunOS 5.11 Last change: 30 Oct 2008 1
Kernel Functions for Drivers net_instance_notify_register(9F)
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/removedRETURN 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(5) for descriptions of the following attri-
butes:____________________________________________________________
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
|_____________________________|_____________________________|
| Availability | SUNWcs ||_____________________________|_____________________________|
| Interface Stability | Committed ||_____________________________|_____________________________|
SEE ALSO
attributes(5), net_instance_register(9F),
net_instance_unregister(9F), net_zoneidtonetid(9F)
SunOS 5.11 Last change: 30 Oct 2008 2