+static inline u64 wpan_dev_id(struct wpan_dev *wpan_dev)
+{
+ return (u64)wpan_dev->identifier |
+ ((u64)wpan_phy_to_rdev(wpan_dev->wpan_phy)->wpan_phy_idx << 32);
+}
+
+static int
+nl802154_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
+ struct cfg802154_registered_device *rdev,
+ struct wpan_dev *wpan_dev)
+{
+ struct net_device *dev = wpan_dev->netdev;
+ void *hdr;
+
+ hdr = nl802154hdr_put(msg, portid, seq, flags,
+ NL802154_CMD_NEW_INTERFACE);
+ if (!hdr)
+ return -1;
+
+ if (dev &&
+ (nla_put_u32(msg, NL802154_ATTR_IFINDEX, dev->ifindex) ||
+ nla_put_string(msg, NL802154_ATTR_IFNAME, dev->name)))
+ goto nla_put_failure;
+
+ if (nla_put_u32(msg, NL802154_ATTR_WPAN_PHY, rdev->wpan_phy_idx) ||
+ nla_put_u32(msg, NL802154_ATTR_IFTYPE, wpan_dev->iftype) ||
+ nla_put_u64(msg, NL802154_ATTR_WPAN_DEV, wpan_dev_id(wpan_dev)) ||
+ nla_put_u32(msg, NL802154_ATTR_GENERATION,
+ rdev->devlist_generation ^
+ (cfg802154_rdev_list_generation << 2)))
+ goto nla_put_failure;
+
+ /* address settings */
+ if (nla_put_le64(msg, NL802154_ATTR_EXTENDED_ADDR,
+ wpan_dev->extended_addr) ||
+ nla_put_le16(msg, NL802154_ATTR_SHORT_ADDR,
+ wpan_dev->short_addr) ||
+ nla_put_le16(msg, NL802154_ATTR_PAN_ID, wpan_dev->pan_id))
+ goto nla_put_failure;
+
+ /* ARET handling */
+ if (nla_put_s8(msg, NL802154_ATTR_MAX_FRAME_RETRIES,
+ wpan_dev->frame_retries) ||
+ nla_put_u8(msg, NL802154_ATTR_MAX_BE, wpan_dev->max_be) ||
+ nla_put_u8(msg, NL802154_ATTR_MAX_CSMA_BACKOFFS,
+ wpan_dev->csma_retries) ||
+ nla_put_u8(msg, NL802154_ATTR_MIN_BE, wpan_dev->min_be))
+ goto nla_put_failure;
+
+ /* listen before transmit */
+ if (nla_put_u8(msg, NL802154_ATTR_LBT_MODE, wpan_dev->lbt))
+ goto nla_put_failure;
+
+ return genlmsg_end(msg, hdr);
+
+nla_put_failure:
+ genlmsg_cancel(msg, hdr);
+ return -EMSGSIZE;
+}
+
+static int
+nl802154_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
+{
+ int wp_idx = 0;
+ int if_idx = 0;
+ int wp_start = cb->args[0];
+ int if_start = cb->args[1];
+ struct cfg802154_registered_device *rdev;
+ struct wpan_dev *wpan_dev;
+
+ rtnl_lock();
+ list_for_each_entry(rdev, &cfg802154_rdev_list, list) {
+ /* TODO netns compare */
+ if (wp_idx < wp_start) {
+ wp_idx++;
+ continue;
+ }
+ if_idx = 0;
+
+ list_for_each_entry(wpan_dev, &rdev->wpan_dev_list, list) {
+ if (if_idx < if_start) {
+ if_idx++;
+ continue;
+ }
+ if (nl802154_send_iface(skb, NETLINK_CB(cb->skb).portid,
+ cb->nlh->nlmsg_seq, NLM_F_MULTI,
+ rdev, wpan_dev) < 0) {
+ goto out;
+ }
+ if_idx++;
+ }
+
+ wp_idx++;
+ }
+out:
+ rtnl_unlock();
+
+ cb->args[0] = wp_idx;
+ cb->args[1] = if_idx;
+
+ return skb->len;
+}
+
+static int nl802154_get_interface(struct sk_buff *skb, struct genl_info *info)
+{
+ struct sk_buff *msg;
+ struct cfg802154_registered_device *rdev = info->user_ptr[0];
+ struct wpan_dev *wdev = info->user_ptr[1];
+
+ msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
+ if (!msg)
+ return -ENOMEM;
+
+ if (nl802154_send_iface(msg, info->snd_portid, info->snd_seq, 0,
+ rdev, wdev) < 0) {
+ nlmsg_free(msg);
+ return -ENOBUFS;
+ }
+
+ return genlmsg_reply(msg, info);
+}
+