diff options
Diffstat (limited to 'net/ieee802154/nl802154.c')
| -rw-r--r-- | net/ieee802154/nl802154.c | 93 |
1 files changed, 93 insertions, 0 deletions
diff --git a/net/ieee802154/nl802154.c b/net/ieee802154/nl802154.c index 0b7a9f16b3b6..8661907599e1 100644 --- a/net/ieee802154/nl802154.c +++ b/net/ieee802154/nl802154.c @@ -227,6 +227,7 @@ static const struct nla_policy nl802154_policy[NL802154_ATTR_MAX+1] = { [NL802154_ATTR_SCAN_MEAN_PRF] = { .type = NLA_U8 }, [NL802154_ATTR_SCAN_DURATION] = { .type = NLA_U8 }, [NL802154_ATTR_SCAN_DONE_REASON] = { .type = NLA_U8 }, + [NL802154_ATTR_BEACON_INTERVAL] = { .type = NLA_U8 }, #ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL [NL802154_ATTR_SEC_ENABLED] = { .type = NLA_U8, }, @@ -1587,6 +1588,82 @@ static int nl802154_abort_scan(struct sk_buff *skb, struct genl_info *info) return rdev_abort_scan(rdev, wpan_dev); } +static int +nl802154_send_beacons(struct sk_buff *skb, struct genl_info *info) +{ + struct cfg802154_registered_device *rdev = info->user_ptr[0]; + struct net_device *dev = info->user_ptr[1]; + struct wpan_dev *wpan_dev = dev->ieee802154_ptr; + struct wpan_phy *wpan_phy = &rdev->wpan_phy; + struct cfg802154_beacon_request *request; + int err; + + /* Only coordinators can send beacons */ + if (wpan_dev->iftype != NL802154_IFTYPE_COORD) + return -EOPNOTSUPP; + + if (wpan_dev->pan_id == cpu_to_le16(IEEE802154_PANID_BROADCAST)) { + pr_err("Device is not part of any PAN\n"); + return -EPERM; + } + + request = kzalloc(sizeof(*request), GFP_KERNEL); + if (!request) + return -ENOMEM; + + request->wpan_dev = wpan_dev; + request->wpan_phy = wpan_phy; + + if (info->attrs[NL802154_ATTR_BEACON_INTERVAL]) { + request->interval = nla_get_u8(info->attrs[NL802154_ATTR_BEACON_INTERVAL]); + if (request->interval > IEEE802154_MAX_SCAN_DURATION) { + pr_err("Interval is out of range\n"); + err = -EINVAL; + goto free_request; + } + } else { + /* Use maximum duration order by default */ + request->interval = IEEE802154_MAX_SCAN_DURATION; + } + + if (wpan_dev->netdev) + dev_hold(wpan_dev->netdev); + + err = rdev_send_beacons(rdev, request); + if (err) { + pr_err("Failure starting sending beacons (%d)\n", err); + goto free_device; + } + + return 0; + +free_device: + if (wpan_dev->netdev) + dev_put(wpan_dev->netdev); +free_request: + kfree(request); + + return err; +} + +void nl802154_beaconing_done(struct wpan_dev *wpan_dev) +{ + if (wpan_dev->netdev) + dev_put(wpan_dev->netdev); +} +EXPORT_SYMBOL_GPL(nl802154_beaconing_done); + +static int +nl802154_stop_beacons(struct sk_buff *skb, struct genl_info *info) +{ + struct cfg802154_registered_device *rdev = info->user_ptr[0]; + struct net_device *dev = info->user_ptr[1]; + struct wpan_dev *wpan_dev = dev->ieee802154_ptr; + + /* Resources are released in the notification helper above */ + return rdev_stop_beacons(rdev, wpan_dev); +} + #ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL static const struct nla_policy nl802154_dev_addr_policy[NL802154_DEV_ADDR_ATTR_MAX + 1] = { [NL802154_DEV_ADDR_ATTR_PAN_ID] = { .type = NLA_U16 }, @@ -2693,6 +2770,22 @@ static const struct genl_ops nl802154_ops[] = { NL802154_FLAG_CHECK_NETDEV_UP | NL802154_FLAG_NEED_RTNL, }, + { + .cmd = NL802154_CMD_SEND_BEACONS, + .doit = nl802154_send_beacons, + .flags = GENL_ADMIN_PERM, + .internal_flags = NL802154_FLAG_NEED_NETDEV | + NL802154_FLAG_CHECK_NETDEV_UP | + NL802154_FLAG_NEED_RTNL, + }, + { + .cmd = NL802154_CMD_STOP_BEACONS, + .doit = nl802154_stop_beacons, + .flags = GENL_ADMIN_PERM, + .internal_flags = NL802154_FLAG_NEED_NETDEV | + NL802154_FLAG_CHECK_NETDEV_UP | + NL802154_FLAG_NEED_RTNL, + }, #ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL { .cmd = NL802154_CMD_SET_SEC_PARAMS, |