From 9bc114504b07207d671593f6f6d787d55dcf91bd Mon Sep 17 00:00:00 2001 From: Miquel Raynal Date: Wed, 25 Jan 2023 11:29:22 +0100 Subject: ieee802154: Add support for user beaconing requests Parse user requests for sending beacons, start sending beacons at a regular pace. If needed, the pace can be updated with a new request. The process can also be interrupted at any moment. The page and channel must be changed beforehands if needed. Interval orders above 14 are reserved to tell a device it must answer BEACON_REQ coming from another device as part of an active scan procedure and this is not yet supported. A netlink "beacon request" structure is created to list the requirements. Mac layers may now implement the ->send_beacons() and ->stop_beacons() hooks. Co-developed-by: David Girault Signed-off-by: David Girault Signed-off-by: Miquel Raynal Acked-by: Alexander Aring Link: https://lore.kernel.org/r/20230125102923.135465-2-miquel.raynal@bootlin.com Signed-off-by: Stefan Schmidt --- include/net/cfg802154.h | 23 +++++++++++++++++++++++ include/net/nl802154.h | 3 +++ 2 files changed, 26 insertions(+) (limited to 'include') diff --git a/include/net/cfg802154.h b/include/net/cfg802154.h index 0b0f81a945b6..0c2778a836db 100644 --- a/include/net/cfg802154.h +++ b/include/net/cfg802154.h @@ -19,6 +19,7 @@ struct wpan_phy; struct wpan_phy_cca; struct cfg802154_scan_request; +struct cfg802154_beacon_request; #ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL struct ieee802154_llsec_device_key; @@ -72,6 +73,10 @@ struct cfg802154_ops { struct cfg802154_scan_request *request); int (*abort_scan)(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev); + int (*send_beacons)(struct wpan_phy *wpan_phy, + struct cfg802154_beacon_request *request); + int (*stop_beacons)(struct wpan_phy *wpan_phy, + struct wpan_dev *wpan_dev); #ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL void (*get_llsec_table)(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev, @@ -314,6 +319,24 @@ struct cfg802154_scan_request { struct wpan_phy *wpan_phy; }; +/** + * struct cfg802154_beacon_request - Beacon request descriptor + * + * @interval: interval n between sendings, in multiple order of the super frame + * duration: aBaseSuperframeDuration * (2^n) unless the interval + * order is greater or equal to 15, in this case beacons won't be + * passively sent out at a fixed rate but instead inform the device + * that it should answer beacon requests as part of active scan + * procedures + * @wpan_dev: the concerned wpan device + * @wpan_phy: the wpan phy this was for + */ +struct cfg802154_beacon_request { + u8 interval; + struct wpan_dev *wpan_dev; + struct wpan_phy *wpan_phy; +}; + /** * struct cfg802154_mac_pkt - MAC packet descriptor (beacon/command) * @node: MAC packets to process list member diff --git a/include/net/nl802154.h b/include/net/nl802154.h index c267fa1c5aac..8cd9d141f5af 100644 --- a/include/net/nl802154.h +++ b/include/net/nl802154.h @@ -76,6 +76,8 @@ enum nl802154_commands { NL802154_CMD_TRIGGER_SCAN, NL802154_CMD_ABORT_SCAN, NL802154_CMD_SCAN_DONE, + NL802154_CMD_SEND_BEACONS, + NL802154_CMD_STOP_BEACONS, /* add new commands above here */ @@ -144,6 +146,7 @@ enum nl802154_attrs { NL802154_ATTR_SCAN_MEAN_PRF, NL802154_ATTR_SCAN_DURATION, NL802154_ATTR_SCAN_DONE_REASON, + NL802154_ATTR_BEACON_INTERVAL, /* add attributes here, update the policy in nl802154.c */ -- cgit v1.2.3