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| author | Alexander V. Chernikov <melifaro@FreeBSD.org> | 2022-12-03 17:10:50 +0000 |
|---|---|---|
| committer | Alexander V. Chernikov <melifaro@FreeBSD.org> | 2022-12-09 11:20:07 +0000 |
| commit | 1bcd230f9508b3c917f26be4b905e4b5141decea (patch) | |
| tree | 57c7ffb469b0972e3ed6cdb48cc4d42d7e82c482 /sys/dev/usb | |
| parent | 0ca90ed42a495074392a8316ae58a9bbf4eda01a (diff) | |
| download | src-1bcd230f9508b3c917f26be4b905e4b5141decea.tar.gz src-1bcd230f9508b3c917f26be4b905e4b5141decea.zip | |
netlink: add interface notification on link status / flags change.
* Add link-state change notifications by subscribing to ifnet_link_event.
In the Linux netlink model, link state is reported in 2 places: first is
the IFLA_OPERSTATE, which stores state per RFC2863.
The second is an IFF_LOWER_UP interface flag. As many applications rely
on the latter, reserve 1 bit from if_flags, named as IFF_NETLINK_1.
This flag is mapped to IFF_LOWER_UP in the netlink headers. This is done
to avoid making applications think this flag is actually
supported / presented in non-netlink outputs.
* Add flag change notifications, by hooking into rt_ifmsg().
In the netlink model, notification should include the bitmask for the
change flags. Update rt_ifmsg() to include such bitmask.
Differential Revision: https://reviews.freebsd.org/D37597
Diffstat (limited to 'sys/dev/usb')
| -rw-r--r-- | sys/dev/usb/usb_pf.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/sys/dev/usb/usb_pf.c b/sys/dev/usb/usb_pf.c index d0b7f0889cea..54b5b0d55a99 100644 --- a/sys/dev/usb/usb_pf.c +++ b/sys/dev/usb/usb_pf.c @@ -209,7 +209,7 @@ usbpf_clone_create(struct if_clone *ifc, char *name, size_t len, ifp->if_ioctl = usbpf_ioctl; if_attach(ifp); ifp->if_flags |= IFF_UP; - rt_ifmsg(ifp); + rt_ifmsg(ifp, IFF_UP); /* * XXX According to the specification of DLT_USB, it indicates * packets beginning with USB setup header. But not sure all |