[Feature] add GA346 baseline version
Change-Id: Ic62933698569507dcf98240cdf5d9931ae34348f
diff --git a/src/kernel/linux/v4.19/net/mac802154/iface.c b/src/kernel/linux/v4.19/net/mac802154/iface.c
new file mode 100644
index 0000000..bd88a9b
--- /dev/null
+++ b/src/kernel/linux/v4.19/net/mac802154/iface.c
@@ -0,0 +1,751 @@
+/*
+ * Copyright 2007-2012 Siemens AG
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * Written by:
+ * Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
+ * Sergey Lapin <slapin@ossfans.org>
+ * Maxim Gorbachyov <maxim.gorbachev@siemens.com>
+ * Alexander Smirnov <alex.bluesman.smirnov@gmail.com>
+ */
+
+#include <linux/netdevice.h>
+#include <linux/module.h>
+#include <linux/if_arp.h>
+#include <linux/ieee802154.h>
+
+#include <net/nl802154.h>
+#include <net/mac802154.h>
+#include <net/ieee802154_netdev.h>
+#include <net/cfg802154.h>
+
+#include "ieee802154_i.h"
+#include "driver-ops.h"
+
+int mac802154_wpan_update_llsec(struct net_device *dev)
+{
+ struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
+ struct ieee802154_mlme_ops *ops = ieee802154_mlme_ops(dev);
+ struct wpan_dev *wpan_dev = &sdata->wpan_dev;
+ int rc = 0;
+
+ if (ops->llsec) {
+ struct ieee802154_llsec_params params;
+ int changed = 0;
+
+ params.pan_id = wpan_dev->pan_id;
+ changed |= IEEE802154_LLSEC_PARAM_PAN_ID;
+
+ params.hwaddr = wpan_dev->extended_addr;
+ changed |= IEEE802154_LLSEC_PARAM_HWADDR;
+
+ rc = ops->llsec->set_params(dev, ¶ms, changed);
+ }
+
+ return rc;
+}
+
+static int
+mac802154_wpan_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
+{
+ struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
+ struct wpan_dev *wpan_dev = &sdata->wpan_dev;
+ struct sockaddr_ieee802154 *sa =
+ (struct sockaddr_ieee802154 *)&ifr->ifr_addr;
+ int err = -ENOIOCTLCMD;
+
+ if (cmd != SIOCGIFADDR && cmd != SIOCSIFADDR)
+ return err;
+
+ rtnl_lock();
+
+ switch (cmd) {
+ case SIOCGIFADDR:
+ {
+ u16 pan_id, short_addr;
+
+ pan_id = le16_to_cpu(wpan_dev->pan_id);
+ short_addr = le16_to_cpu(wpan_dev->short_addr);
+ if (pan_id == IEEE802154_PANID_BROADCAST ||
+ short_addr == IEEE802154_ADDR_BROADCAST) {
+ err = -EADDRNOTAVAIL;
+ break;
+ }
+
+ sa->family = AF_IEEE802154;
+ sa->addr.addr_type = IEEE802154_ADDR_SHORT;
+ sa->addr.pan_id = pan_id;
+ sa->addr.short_addr = short_addr;
+
+ err = 0;
+ break;
+ }
+ case SIOCSIFADDR:
+ if (netif_running(dev)) {
+ rtnl_unlock();
+ return -EBUSY;
+ }
+
+ dev_warn(&dev->dev,
+ "Using DEBUGing ioctl SIOCSIFADDR isn't recommended!\n");
+ if (sa->family != AF_IEEE802154 ||
+ sa->addr.addr_type != IEEE802154_ADDR_SHORT ||
+ sa->addr.pan_id == IEEE802154_PANID_BROADCAST ||
+ sa->addr.short_addr == IEEE802154_ADDR_BROADCAST ||
+ sa->addr.short_addr == IEEE802154_ADDR_UNDEF) {
+ err = -EINVAL;
+ break;
+ }
+
+ wpan_dev->pan_id = cpu_to_le16(sa->addr.pan_id);
+ wpan_dev->short_addr = cpu_to_le16(sa->addr.short_addr);
+
+ err = mac802154_wpan_update_llsec(dev);
+ break;
+ }
+
+ rtnl_unlock();
+ return err;
+}
+
+static int mac802154_wpan_mac_addr(struct net_device *dev, void *p)
+{
+ struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
+ struct sockaddr *addr = p;
+ __le64 extended_addr;
+
+ if (netif_running(dev))
+ return -EBUSY;
+
+ /* lowpan need to be down for update
+ * SLAAC address after ifup
+ */
+ if (sdata->wpan_dev.lowpan_dev) {
+ if (netif_running(sdata->wpan_dev.lowpan_dev))
+ return -EBUSY;
+ }
+
+ ieee802154_be64_to_le64(&extended_addr, addr->sa_data);
+ if (!ieee802154_is_valid_extended_unicast_addr(extended_addr))
+ return -EINVAL;
+
+ memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
+ sdata->wpan_dev.extended_addr = extended_addr;
+
+ /* update lowpan interface mac address when
+ * wpan mac has been changed
+ */
+ if (sdata->wpan_dev.lowpan_dev)
+ memcpy(sdata->wpan_dev.lowpan_dev->dev_addr, dev->dev_addr,
+ dev->addr_len);
+
+ return mac802154_wpan_update_llsec(dev);
+}
+
+static int ieee802154_setup_hw(struct ieee802154_sub_if_data *sdata)
+{
+ struct ieee802154_local *local = sdata->local;
+ struct wpan_dev *wpan_dev = &sdata->wpan_dev;
+ int ret;
+
+ if (local->hw.flags & IEEE802154_HW_PROMISCUOUS) {
+ ret = drv_set_promiscuous_mode(local,
+ wpan_dev->promiscuous_mode);
+ if (ret < 0)
+ return ret;
+ }
+
+ if (local->hw.flags & IEEE802154_HW_AFILT) {
+ ret = drv_set_pan_id(local, wpan_dev->pan_id);
+ if (ret < 0)
+ return ret;
+
+ ret = drv_set_extended_addr(local, wpan_dev->extended_addr);
+ if (ret < 0)
+ return ret;
+
+ ret = drv_set_short_addr(local, wpan_dev->short_addr);
+ if (ret < 0)
+ return ret;
+ }
+
+ if (local->hw.flags & IEEE802154_HW_LBT) {
+ ret = drv_set_lbt_mode(local, wpan_dev->lbt);
+ if (ret < 0)
+ return ret;
+ }
+
+ if (local->hw.flags & IEEE802154_HW_CSMA_PARAMS) {
+ ret = drv_set_csma_params(local, wpan_dev->min_be,
+ wpan_dev->max_be,
+ wpan_dev->csma_retries);
+ if (ret < 0)
+ return ret;
+ }
+
+ if (local->hw.flags & IEEE802154_HW_FRAME_RETRIES) {
+ ret = drv_set_max_frame_retries(local, wpan_dev->frame_retries);
+ if (ret < 0)
+ return ret;
+ }
+
+ return 0;
+}
+
+static int mac802154_slave_open(struct net_device *dev)
+{
+ struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
+ struct ieee802154_local *local = sdata->local;
+ int res;
+
+ ASSERT_RTNL();
+
+ set_bit(SDATA_STATE_RUNNING, &sdata->state);
+
+ if (!local->open_count) {
+ res = ieee802154_setup_hw(sdata);
+ if (res)
+ goto err;
+
+ res = drv_start(local);
+ if (res)
+ goto err;
+ }
+
+ local->open_count++;
+ netif_start_queue(dev);
+ return 0;
+err:
+ /* might already be clear but that doesn't matter */
+ clear_bit(SDATA_STATE_RUNNING, &sdata->state);
+
+ return res;
+}
+
+static int
+ieee802154_check_mac_settings(struct ieee802154_local *local,
+ struct wpan_dev *wpan_dev,
+ struct wpan_dev *nwpan_dev)
+{
+ ASSERT_RTNL();
+
+ if (local->hw.flags & IEEE802154_HW_PROMISCUOUS) {
+ if (wpan_dev->promiscuous_mode != nwpan_dev->promiscuous_mode)
+ return -EBUSY;
+ }
+
+ if (local->hw.flags & IEEE802154_HW_AFILT) {
+ if (wpan_dev->pan_id != nwpan_dev->pan_id ||
+ wpan_dev->short_addr != nwpan_dev->short_addr ||
+ wpan_dev->extended_addr != nwpan_dev->extended_addr)
+ return -EBUSY;
+ }
+
+ if (local->hw.flags & IEEE802154_HW_CSMA_PARAMS) {
+ if (wpan_dev->min_be != nwpan_dev->min_be ||
+ wpan_dev->max_be != nwpan_dev->max_be ||
+ wpan_dev->csma_retries != nwpan_dev->csma_retries)
+ return -EBUSY;
+ }
+
+ if (local->hw.flags & IEEE802154_HW_FRAME_RETRIES) {
+ if (wpan_dev->frame_retries != nwpan_dev->frame_retries)
+ return -EBUSY;
+ }
+
+ if (local->hw.flags & IEEE802154_HW_LBT) {
+ if (wpan_dev->lbt != nwpan_dev->lbt)
+ return -EBUSY;
+ }
+
+ return 0;
+}
+
+static int
+ieee802154_check_concurrent_iface(struct ieee802154_sub_if_data *sdata,
+ enum nl802154_iftype iftype)
+{
+ struct ieee802154_local *local = sdata->local;
+ struct wpan_dev *wpan_dev = &sdata->wpan_dev;
+ struct ieee802154_sub_if_data *nsdata;
+
+ /* we hold the RTNL here so can safely walk the list */
+ list_for_each_entry(nsdata, &local->interfaces, list) {
+ if (nsdata != sdata && ieee802154_sdata_running(nsdata)) {
+ int ret;
+
+ /* TODO currently we don't support multiple node types
+ * we need to run skb_clone at rx path. Check if there
+ * exist really an use case if we need to support
+ * multiple node types at the same time.
+ */
+ if (wpan_dev->iftype == NL802154_IFTYPE_NODE &&
+ nsdata->wpan_dev.iftype == NL802154_IFTYPE_NODE)
+ return -EBUSY;
+
+ /* check all phy mac sublayer settings are the same.
+ * We have only one phy, different values makes trouble.
+ */
+ ret = ieee802154_check_mac_settings(local, wpan_dev,
+ &nsdata->wpan_dev);
+ if (ret < 0)
+ return ret;
+ }
+ }
+
+ return 0;
+}
+
+static int mac802154_wpan_open(struct net_device *dev)
+{
+ int rc;
+ struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
+ struct wpan_dev *wpan_dev = &sdata->wpan_dev;
+
+ rc = ieee802154_check_concurrent_iface(sdata, wpan_dev->iftype);
+ if (rc < 0)
+ return rc;
+
+ return mac802154_slave_open(dev);
+}
+
+static int mac802154_slave_close(struct net_device *dev)
+{
+ struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
+ struct ieee802154_local *local = sdata->local;
+
+ ASSERT_RTNL();
+
+ netif_stop_queue(dev);
+ local->open_count--;
+
+ clear_bit(SDATA_STATE_RUNNING, &sdata->state);
+
+ if (!local->open_count)
+ ieee802154_stop_device(local);
+
+ return 0;
+}
+
+static int mac802154_set_header_security(struct ieee802154_sub_if_data *sdata,
+ struct ieee802154_hdr *hdr,
+ const struct ieee802154_mac_cb *cb)
+{
+ struct ieee802154_llsec_params params;
+ u8 level;
+
+ mac802154_llsec_get_params(&sdata->sec, ¶ms);
+
+ if (!params.enabled && cb->secen_override && cb->secen)
+ return -EINVAL;
+ if (!params.enabled ||
+ (cb->secen_override && !cb->secen) ||
+ !params.out_level)
+ return 0;
+ if (cb->seclevel_override && !cb->seclevel)
+ return -EINVAL;
+
+ level = cb->seclevel_override ? cb->seclevel : params.out_level;
+
+ hdr->fc.security_enabled = 1;
+ hdr->sec.level = level;
+ hdr->sec.key_id_mode = params.out_key.mode;
+ if (params.out_key.mode == IEEE802154_SCF_KEY_SHORT_INDEX)
+ hdr->sec.short_src = params.out_key.short_source;
+ else if (params.out_key.mode == IEEE802154_SCF_KEY_HW_INDEX)
+ hdr->sec.extended_src = params.out_key.extended_source;
+ hdr->sec.key_id = params.out_key.id;
+
+ return 0;
+}
+
+static int ieee802154_header_create(struct sk_buff *skb,
+ struct net_device *dev,
+ const struct ieee802154_addr *daddr,
+ const struct ieee802154_addr *saddr,
+ unsigned len)
+{
+ struct ieee802154_hdr hdr;
+ struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
+ struct wpan_dev *wpan_dev = &sdata->wpan_dev;
+ struct ieee802154_mac_cb *cb = mac_cb(skb);
+ int hlen;
+
+ if (!daddr)
+ return -EINVAL;
+
+ memset(&hdr.fc, 0, sizeof(hdr.fc));
+ hdr.fc.type = cb->type;
+ hdr.fc.security_enabled = cb->secen;
+ hdr.fc.ack_request = cb->ackreq;
+ hdr.seq = atomic_inc_return(&dev->ieee802154_ptr->dsn) & 0xFF;
+
+ if (mac802154_set_header_security(sdata, &hdr, cb) < 0)
+ return -EINVAL;
+
+ if (!saddr) {
+ if (wpan_dev->short_addr == cpu_to_le16(IEEE802154_ADDR_BROADCAST) ||
+ wpan_dev->short_addr == cpu_to_le16(IEEE802154_ADDR_UNDEF) ||
+ wpan_dev->pan_id == cpu_to_le16(IEEE802154_PANID_BROADCAST)) {
+ hdr.source.mode = IEEE802154_ADDR_LONG;
+ hdr.source.extended_addr = wpan_dev->extended_addr;
+ } else {
+ hdr.source.mode = IEEE802154_ADDR_SHORT;
+ hdr.source.short_addr = wpan_dev->short_addr;
+ }
+
+ hdr.source.pan_id = wpan_dev->pan_id;
+ } else {
+ hdr.source = *(const struct ieee802154_addr *)saddr;
+ }
+
+ hdr.dest = *(const struct ieee802154_addr *)daddr;
+
+ hlen = ieee802154_hdr_push(skb, &hdr);
+ if (hlen < 0)
+ return -EINVAL;
+
+ skb_reset_mac_header(skb);
+ skb->mac_len = hlen;
+
+ if (len > ieee802154_max_payload(&hdr))
+ return -EMSGSIZE;
+
+ return hlen;
+}
+
+static const struct wpan_dev_header_ops ieee802154_header_ops = {
+ .create = ieee802154_header_create,
+};
+
+/* This header create functionality assumes a 8 byte array for
+ * source and destination pointer at maximum. To adapt this for
+ * the 802.15.4 dataframe header we use extended address handling
+ * here only and intra pan connection. fc fields are mostly fallback
+ * handling. For provide dev_hard_header for dgram sockets.
+ */
+static int mac802154_header_create(struct sk_buff *skb,
+ struct net_device *dev,
+ unsigned short type,
+ const void *daddr,
+ const void *saddr,
+ unsigned len)
+{
+ struct ieee802154_hdr hdr;
+ struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
+ struct wpan_dev *wpan_dev = &sdata->wpan_dev;
+ struct ieee802154_mac_cb cb = { };
+ int hlen;
+
+ if (!daddr)
+ return -EINVAL;
+
+ memset(&hdr.fc, 0, sizeof(hdr.fc));
+ hdr.fc.type = IEEE802154_FC_TYPE_DATA;
+ hdr.fc.ack_request = wpan_dev->ackreq;
+ hdr.seq = atomic_inc_return(&dev->ieee802154_ptr->dsn) & 0xFF;
+
+ /* TODO currently a workaround to give zero cb block to set
+ * security parameters defaults according MIB.
+ */
+ if (mac802154_set_header_security(sdata, &hdr, &cb) < 0)
+ return -EINVAL;
+
+ hdr.dest.pan_id = wpan_dev->pan_id;
+ hdr.dest.mode = IEEE802154_ADDR_LONG;
+ ieee802154_be64_to_le64(&hdr.dest.extended_addr, daddr);
+
+ hdr.source.pan_id = hdr.dest.pan_id;
+ hdr.source.mode = IEEE802154_ADDR_LONG;
+
+ if (!saddr)
+ hdr.source.extended_addr = wpan_dev->extended_addr;
+ else
+ ieee802154_be64_to_le64(&hdr.source.extended_addr, saddr);
+
+ hlen = ieee802154_hdr_push(skb, &hdr);
+ if (hlen < 0)
+ return -EINVAL;
+
+ skb_reset_mac_header(skb);
+ skb->mac_len = hlen;
+
+ if (len > ieee802154_max_payload(&hdr))
+ return -EMSGSIZE;
+
+ return hlen;
+}
+
+static int
+mac802154_header_parse(const struct sk_buff *skb, unsigned char *haddr)
+{
+ struct ieee802154_hdr hdr;
+
+ if (ieee802154_hdr_peek_addrs(skb, &hdr) < 0) {
+ pr_debug("malformed packet\n");
+ return 0;
+ }
+
+ if (hdr.source.mode == IEEE802154_ADDR_LONG) {
+ ieee802154_le64_to_be64(haddr, &hdr.source.extended_addr);
+ return IEEE802154_EXTENDED_ADDR_LEN;
+ }
+
+ return 0;
+}
+
+static const struct header_ops mac802154_header_ops = {
+ .create = mac802154_header_create,
+ .parse = mac802154_header_parse,
+};
+
+static const struct net_device_ops mac802154_wpan_ops = {
+ .ndo_open = mac802154_wpan_open,
+ .ndo_stop = mac802154_slave_close,
+ .ndo_start_xmit = ieee802154_subif_start_xmit,
+ .ndo_do_ioctl = mac802154_wpan_ioctl,
+ .ndo_set_mac_address = mac802154_wpan_mac_addr,
+};
+
+static const struct net_device_ops mac802154_monitor_ops = {
+ .ndo_open = mac802154_wpan_open,
+ .ndo_stop = mac802154_slave_close,
+ .ndo_start_xmit = ieee802154_monitor_start_xmit,
+};
+
+static void mac802154_wpan_free(struct net_device *dev)
+{
+ struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
+
+ mac802154_llsec_destroy(&sdata->sec);
+}
+
+static void ieee802154_if_setup(struct net_device *dev)
+{
+ dev->addr_len = IEEE802154_EXTENDED_ADDR_LEN;
+ memset(dev->broadcast, 0xff, IEEE802154_EXTENDED_ADDR_LEN);
+
+ /* Let hard_header_len set to IEEE802154_MIN_HEADER_LEN. AF_PACKET
+ * will not send frames without any payload, but ack frames
+ * has no payload, so substract one that we can send a 3 bytes
+ * frame. The xmit callback assumes at least a hard header where two
+ * bytes fc and sequence field are set.
+ */
+ dev->hard_header_len = IEEE802154_MIN_HEADER_LEN - 1;
+ /* The auth_tag header is for security and places in private payload
+ * room of mac frame which stucks between payload and FCS field.
+ */
+ dev->needed_tailroom = IEEE802154_MAX_AUTH_TAG_LEN +
+ IEEE802154_FCS_LEN;
+ /* The mtu size is the payload without mac header in this case.
+ * We have a dynamic length header with a minimum header length
+ * which is hard_header_len. In this case we let mtu to the size
+ * of maximum payload which is IEEE802154_MTU - IEEE802154_FCS_LEN -
+ * hard_header_len. The FCS which is set by hardware or ndo_start_xmit
+ * and the minimum mac header which can be evaluated inside driver
+ * layer. The rest of mac header will be part of payload if greater
+ * than hard_header_len.
+ */
+ dev->mtu = IEEE802154_MTU - IEEE802154_FCS_LEN -
+ dev->hard_header_len;
+ dev->tx_queue_len = 300;
+ dev->flags = IFF_NOARP | IFF_BROADCAST;
+}
+
+static int
+ieee802154_setup_sdata(struct ieee802154_sub_if_data *sdata,
+ enum nl802154_iftype type)
+{
+ struct wpan_dev *wpan_dev = &sdata->wpan_dev;
+ int ret;
+ u8 tmp;
+
+ /* set some type-dependent values */
+ sdata->wpan_dev.iftype = type;
+
+ get_random_bytes(&tmp, sizeof(tmp));
+ atomic_set(&wpan_dev->bsn, tmp);
+ get_random_bytes(&tmp, sizeof(tmp));
+ atomic_set(&wpan_dev->dsn, tmp);
+
+ /* defaults per 802.15.4-2011 */
+ wpan_dev->min_be = 3;
+ wpan_dev->max_be = 5;
+ wpan_dev->csma_retries = 4;
+ wpan_dev->frame_retries = 3;
+
+ wpan_dev->pan_id = cpu_to_le16(IEEE802154_PANID_BROADCAST);
+ wpan_dev->short_addr = cpu_to_le16(IEEE802154_ADDR_BROADCAST);
+
+ switch (type) {
+ case NL802154_IFTYPE_NODE:
+ ieee802154_be64_to_le64(&wpan_dev->extended_addr,
+ sdata->dev->dev_addr);
+
+ sdata->dev->header_ops = &mac802154_header_ops;
+ sdata->dev->needs_free_netdev = true;
+ sdata->dev->priv_destructor = mac802154_wpan_free;
+ sdata->dev->netdev_ops = &mac802154_wpan_ops;
+ sdata->dev->ml_priv = &mac802154_mlme_wpan;
+ wpan_dev->promiscuous_mode = false;
+ wpan_dev->header_ops = &ieee802154_header_ops;
+
+ mutex_init(&sdata->sec_mtx);
+
+ mac802154_llsec_init(&sdata->sec);
+ ret = mac802154_wpan_update_llsec(sdata->dev);
+ if (ret < 0)
+ return ret;
+
+ break;
+ case NL802154_IFTYPE_MONITOR:
+ sdata->dev->needs_free_netdev = true;
+ sdata->dev->netdev_ops = &mac802154_monitor_ops;
+ wpan_dev->promiscuous_mode = true;
+ break;
+ default:
+ BUG();
+ }
+
+ return 0;
+}
+
+struct net_device *
+ieee802154_if_add(struct ieee802154_local *local, const char *name,
+ unsigned char name_assign_type, enum nl802154_iftype type,
+ __le64 extended_addr)
+{
+ struct net_device *ndev = NULL;
+ struct ieee802154_sub_if_data *sdata = NULL;
+ int ret = -ENOMEM;
+
+ ASSERT_RTNL();
+
+ ndev = alloc_netdev(sizeof(*sdata), name,
+ name_assign_type, ieee802154_if_setup);
+ if (!ndev)
+ return ERR_PTR(-ENOMEM);
+
+ ndev->needed_headroom = local->hw.extra_tx_headroom +
+ IEEE802154_MAX_HEADER_LEN;
+
+ ret = dev_alloc_name(ndev, ndev->name);
+ if (ret < 0)
+ goto err;
+
+ ieee802154_le64_to_be64(ndev->perm_addr,
+ &local->hw.phy->perm_extended_addr);
+ switch (type) {
+ case NL802154_IFTYPE_NODE:
+ ndev->type = ARPHRD_IEEE802154;
+ if (ieee802154_is_valid_extended_unicast_addr(extended_addr))
+ ieee802154_le64_to_be64(ndev->dev_addr, &extended_addr);
+ else
+ memcpy(ndev->dev_addr, ndev->perm_addr,
+ IEEE802154_EXTENDED_ADDR_LEN);
+ break;
+ case NL802154_IFTYPE_MONITOR:
+ ndev->type = ARPHRD_IEEE802154_MONITOR;
+ break;
+ default:
+ ret = -EINVAL;
+ goto err;
+ }
+
+ /* TODO check this */
+ SET_NETDEV_DEV(ndev, &local->phy->dev);
+ dev_net_set(ndev, wpan_phy_net(local->hw.phy));
+ sdata = netdev_priv(ndev);
+ ndev->ieee802154_ptr = &sdata->wpan_dev;
+ memcpy(sdata->name, ndev->name, IFNAMSIZ);
+ sdata->dev = ndev;
+ sdata->wpan_dev.wpan_phy = local->hw.phy;
+ sdata->local = local;
+
+ /* setup type-dependent data */
+ ret = ieee802154_setup_sdata(sdata, type);
+ if (ret)
+ goto err;
+
+ ret = register_netdevice(ndev);
+ if (ret < 0)
+ goto err;
+
+ mutex_lock(&local->iflist_mtx);
+ list_add_tail_rcu(&sdata->list, &local->interfaces);
+ mutex_unlock(&local->iflist_mtx);
+
+ return ndev;
+
+err:
+ free_netdev(ndev);
+ return ERR_PTR(ret);
+}
+
+void ieee802154_if_remove(struct ieee802154_sub_if_data *sdata)
+{
+ ASSERT_RTNL();
+
+ mutex_lock(&sdata->local->iflist_mtx);
+ list_del_rcu(&sdata->list);
+ mutex_unlock(&sdata->local->iflist_mtx);
+
+ synchronize_rcu();
+ unregister_netdevice(sdata->dev);
+}
+
+void ieee802154_remove_interfaces(struct ieee802154_local *local)
+{
+ struct ieee802154_sub_if_data *sdata, *tmp;
+
+ mutex_lock(&local->iflist_mtx);
+ list_for_each_entry_safe(sdata, tmp, &local->interfaces, list) {
+ list_del(&sdata->list);
+
+ unregister_netdevice(sdata->dev);
+ }
+ mutex_unlock(&local->iflist_mtx);
+}
+
+static int netdev_notify(struct notifier_block *nb,
+ unsigned long state, void *ptr)
+{
+ struct net_device *dev = netdev_notifier_info_to_dev(ptr);
+ struct ieee802154_sub_if_data *sdata;
+
+ if (state != NETDEV_CHANGENAME)
+ return NOTIFY_DONE;
+
+ if (!dev->ieee802154_ptr || !dev->ieee802154_ptr->wpan_phy)
+ return NOTIFY_DONE;
+
+ if (dev->ieee802154_ptr->wpan_phy->privid != mac802154_wpan_phy_privid)
+ return NOTIFY_DONE;
+
+ sdata = IEEE802154_DEV_TO_SUB_IF(dev);
+ memcpy(sdata->name, dev->name, IFNAMSIZ);
+
+ return NOTIFY_OK;
+}
+
+static struct notifier_block mac802154_netdev_notifier = {
+ .notifier_call = netdev_notify,
+};
+
+int ieee802154_iface_init(void)
+{
+ return register_netdevice_notifier(&mac802154_netdev_notifier);
+}
+
+void ieee802154_iface_exit(void)
+{
+ unregister_netdevice_notifier(&mac802154_netdev_notifier);
+}