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| author | Kay Sievers <kay.sievers@vrfy.org> | 2009-04-22 03:50:11 +0200 |
|---|---|---|
| committer | Kay Sievers <kay.sievers@vrfy.org> | 2009-04-22 03:50:11 +0200 |
| commit | e14bdd88e9796ec3c70966dd1899add6667431f5 (patch) | |
| tree | 729c921be3a7bedad393a754fbf99b42ab301f4b /udev/lib/libudev.h | |
| parent | f907449eee3f58fafafee0658e80578b1dbb2722 (diff) | |
libudev: monitor - add client socket filter for subsystem value
Messages send back by the udev daemon to the netlink socket are
multiplexed by the kernel and delivered to multiple clients. The
clients can upload a socket filter to let the kernel drop messages
not belonging to a certain subsystem. This prevent needless wakeups
and message processing for users who are only interested in a
subset of available events.
Recent kernels allow untrusted users to listen to the netlink
messages.
The messages send by the udev daemon are versioned, to prevent any
custom software reading them without libudev. The message wire format
may change with any udev version update.
Diffstat (limited to 'udev/lib/libudev.h')
| -rw-r--r-- | udev/lib/libudev.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/udev/lib/libudev.h b/udev/lib/libudev.h index e0aa571e26..4094b3a822 100644 --- a/udev/lib/libudev.h +++ b/udev/lib/libudev.h @@ -84,6 +84,7 @@ extern void udev_monitor_unref(struct udev_monitor *udev_monitor); extern struct udev *udev_monitor_get_udev(struct udev_monitor *udev_monitor); extern int udev_monitor_get_fd(struct udev_monitor *udev_monitor); extern struct udev_device *udev_monitor_receive_device(struct udev_monitor *udev_monitor); +extern int udev_monitor_filter_add_match_subsystem(struct udev_monitor *udev_monitor, const char *subsystem); /* sys enumeration */ struct udev_enumerate; |