net_event_notify_register, net_event_notify_unregister - add/delete a function to be called for changes to a event
#include <sys/hook.h> #include <sys/neti.h> int net_event_notify_register(net_handle_t family, char *event, hook_notify_fn_t *callback, void *arg); int net_event_notify_unregister(net_handle_t family, char *event, 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);
Solaris DDI specific (Solaris DDI).
family
callback
event
arg
The net_event_notify_register() function registers a function represented by the pointer callback to be called when there is a change to the event represented by family. The types of changes for which notifications are available for is currently limited to the addition and removal of hooks.
The net_event_notify_unregister() function indicates that there is no longer any desire to receive notification of changes to the event through function calls to the specified callback.
The name of a hook should be considered a private interface unless otherwise specified. The hook names used by IPFilter in Solaris are a public, but uncommitted, interface.
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 when the event occurs 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
name2
name3
If these functions succeed, 0 is returned. Otherwise, the following error is returned:
EEXIST
These functions may be called from user or kernel context.
See attributes(5) for descriptions of the following attributes:
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attributes(5), net_hook_register(9F), net_hook_unregister(9F), net_protocol_lookup(9F)
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