diff options
| author | Miquel Raynal <miquel.raynal@bootlin.com> | 2023-01-25 13:29:23 +0300 |
|---|---|---|
| committer | Stefan Schmidt <stefan@datenfreihafen.org> | 2023-01-28 15:55:10 +0300 |
| commit | 3accf4762734a69ebd03cba989249c78ac7dfc7e (patch) | |
| tree | 403c80eb108413d4f0d4fc4e68e9fb2dc86a0b5b /net/ieee802154 | |
| parent | 9bc114504b07207d671593f6f6d787d55dcf91bd (diff) | |
| download | linux-3accf4762734a69ebd03cba989249c78ac7dfc7e.tar.xz | |
mac802154: Handle basic beaconing
Implement the core hooks in order to provide the softMAC layer support
for sending beacons. Coordinators may be requested to send beacons in a
beacon enabled PAN in order for the other devices around to self
discover the available PANs automatically.
Changing the channels is prohibited while a beacon operation is
ongoing.
The implementation uses a workqueue triggered at a certain interval
depending on the symbol duration for the current channel and the
interval order provided.
Sending beacons in response to a BEACON_REQ frame (ie. answering active
scans) is not yet supported.
This initial patchset has no security support (llsec).
Co-developed-by: David Girault <david.girault@qorvo.com>
Signed-off-by: David Girault <david.girault@qorvo.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Acked-by: Alexander Aring <aahringo@redhat.com>
Link: https://lore.kernel.org/r/20230125102923.135465-3-miquel.raynal@bootlin.com
Signed-off-by: Stefan Schmidt <stefan@datenfreihafen.org>
Diffstat (limited to 'net/ieee802154')
| -rw-r--r-- | net/ieee802154/header_ops.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/net/ieee802154/header_ops.c b/net/ieee802154/header_ops.c index af337cf62764..35d384dfe29d 100644 --- a/net/ieee802154/header_ops.c +++ b/net/ieee802154/header_ops.c @@ -120,6 +120,30 @@ ieee802154_hdr_push(struct sk_buff *skb, struct ieee802154_hdr *hdr) } EXPORT_SYMBOL_GPL(ieee802154_hdr_push); +int ieee802154_beacon_push(struct sk_buff *skb, + struct ieee802154_beacon_frame *beacon) +{ + struct ieee802154_beacon_hdr *mac_pl = &beacon->mac_pl; + struct ieee802154_hdr *mhr = &beacon->mhr; + int ret; + + skb_reserve(skb, sizeof(*mhr)); + ret = ieee802154_hdr_push(skb, mhr); + if (ret < 0) + return ret; + + skb_reset_mac_header(skb); + skb->mac_len = ret; + + skb_put_data(skb, mac_pl, sizeof(*mac_pl)); + + if (mac_pl->pend_short_addr_count || mac_pl->pend_ext_addr_count) + return -EOPNOTSUPP; + + return 0; +} +EXPORT_SYMBOL_GPL(ieee802154_beacon_push); + static int ieee802154_hdr_get_addr(const u8 *buf, int mode, bool omit_pan, struct ieee802154_addr *addr) |