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-rw-r--r--net/ieee802154/6lowpan/6lowpan_i.h48
-rw-r--r--net/ieee802154/6lowpan/Kconfig6
-rw-r--r--net/ieee802154/6lowpan/Makefile4
-rw-r--r--net/ieee802154/6lowpan/core.c284
-rw-r--r--net/ieee802154/6lowpan/reassembly.c551
-rw-r--r--net/ieee802154/6lowpan/rx.c323
-rw-r--r--net/ieee802154/6lowpan/tx.c309
-rw-r--r--net/ieee802154/Kconfig31
-rw-r--r--net/ieee802154/Makefile10
-rw-r--r--net/ieee802154/core.c388
-rw-r--r--net/ieee802154/core.h50
-rw-r--r--net/ieee802154/header_ops.c318
-rw-r--r--net/ieee802154/ieee802154.h75
-rw-r--r--net/ieee802154/netlink.c148
-rw-r--r--net/ieee802154/nl-mac.c1344
-rw-r--r--net/ieee802154/nl-phy.c346
-rw-r--r--net/ieee802154/nl802154.c2517
-rw-r--r--net/ieee802154/nl802154.h8
-rw-r--r--net/ieee802154/nl_policy.c74
-rw-r--r--net/ieee802154/rdev-ops.h321
-rw-r--r--net/ieee802154/socket.c1143
-rw-r--r--net/ieee802154/sysfs.c111
-rw-r--r--net/ieee802154/sysfs.h10
-rw-r--r--net/ieee802154/trace.c7
-rw-r--r--net/ieee802154/trace.h319
25 files changed, 8745 insertions, 0 deletions
diff --git a/net/ieee802154/6lowpan/6lowpan_i.h b/net/ieee802154/6lowpan/6lowpan_i.h
new file mode 100644
index 000000000..44a7e16bf
--- /dev/null
+++ b/net/ieee802154/6lowpan/6lowpan_i.h
@@ -0,0 +1,48 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __IEEE802154_6LOWPAN_I_H__
+#define __IEEE802154_6LOWPAN_I_H__
+
+#include <linux/list.h>
+
+#include <net/ieee802154_netdev.h>
+#include <net/inet_frag.h>
+#include <net/6lowpan.h>
+
+typedef unsigned __bitwise lowpan_rx_result;
+#define RX_CONTINUE ((__force lowpan_rx_result) 0u)
+#define RX_DROP_UNUSABLE ((__force lowpan_rx_result) 1u)
+#define RX_DROP ((__force lowpan_rx_result) 2u)
+#define RX_QUEUED ((__force lowpan_rx_result) 3u)
+
+#define LOWPAN_DISPATCH_FRAG1 0xc0
+#define LOWPAN_DISPATCH_FRAGN 0xe0
+
+struct frag_lowpan_compare_key {
+ u16 tag;
+ u16 d_size;
+ struct ieee802154_addr src;
+ struct ieee802154_addr dst;
+};
+
+/* Equivalent of ipv4 struct ipq
+ */
+struct lowpan_frag_queue {
+ struct inet_frag_queue q;
+};
+
+int lowpan_frag_rcv(struct sk_buff *skb, const u8 frag_type);
+void lowpan_net_frag_exit(void);
+int lowpan_net_frag_init(void);
+
+void lowpan_rx_init(void);
+void lowpan_rx_exit(void);
+
+int lowpan_header_create(struct sk_buff *skb, struct net_device *dev,
+ unsigned short type, const void *_daddr,
+ const void *_saddr, unsigned int len);
+netdev_tx_t lowpan_xmit(struct sk_buff *skb, struct net_device *dev);
+
+int lowpan_iphc_decompress(struct sk_buff *skb);
+lowpan_rx_result lowpan_rx_h_ipv6(struct sk_buff *skb);
+
+#endif /* __IEEE802154_6LOWPAN_I_H__ */
diff --git a/net/ieee802154/6lowpan/Kconfig b/net/ieee802154/6lowpan/Kconfig
new file mode 100644
index 000000000..e808e4db2
--- /dev/null
+++ b/net/ieee802154/6lowpan/Kconfig
@@ -0,0 +1,6 @@
+# SPDX-License-Identifier: GPL-2.0-only
+config IEEE802154_6LOWPAN
+ tristate "6lowpan support over IEEE 802.15.4"
+ depends on 6LOWPAN
+ help
+ IPv6 compression over IEEE 802.15.4.
diff --git a/net/ieee802154/6lowpan/Makefile b/net/ieee802154/6lowpan/Makefile
new file mode 100644
index 000000000..f11d6376a
--- /dev/null
+++ b/net/ieee802154/6lowpan/Makefile
@@ -0,0 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0-only
+obj-$(CONFIG_IEEE802154_6LOWPAN) += ieee802154_6lowpan.o
+
+ieee802154_6lowpan-y := core.o rx.o reassembly.o tx.o
diff --git a/net/ieee802154/6lowpan/core.c b/net/ieee802154/6lowpan/core.c
new file mode 100644
index 000000000..2c087b7f1
--- /dev/null
+++ b/net/ieee802154/6lowpan/core.c
@@ -0,0 +1,284 @@
+/* Copyright 2011, Siemens AG
+ * written by Alexander Smirnov <alex.bluesman.smirnov@gmail.com>
+ */
+
+/* Based on patches from Jon Smirl <jonsmirl@gmail.com>
+ * Copyright (c) 2011 Jon Smirl <jonsmirl@gmail.com>
+ *
+ * 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.
+ */
+
+/* Jon's code is based on 6lowpan implementation for Contiki which is:
+ * Copyright (c) 2008, Swedish Institute of Computer Science.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the Institute nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <linux/module.h>
+#include <linux/netdevice.h>
+#include <linux/ieee802154.h>
+#include <linux/if_arp.h>
+
+#include <net/ipv6.h>
+
+#include "6lowpan_i.h"
+
+static int open_count;
+
+static const struct header_ops lowpan_header_ops = {
+ .create = lowpan_header_create,
+};
+
+static int lowpan_dev_init(struct net_device *ldev)
+{
+ netdev_lockdep_set_classes(ldev);
+
+ return 0;
+}
+
+static int lowpan_open(struct net_device *dev)
+{
+ if (!open_count)
+ lowpan_rx_init();
+ open_count++;
+ return 0;
+}
+
+static int lowpan_stop(struct net_device *dev)
+{
+ open_count--;
+ if (!open_count)
+ lowpan_rx_exit();
+ return 0;
+}
+
+static int lowpan_neigh_construct(struct net_device *dev, struct neighbour *n)
+{
+ struct lowpan_802154_neigh *neigh = lowpan_802154_neigh(neighbour_priv(n));
+
+ /* default no short_addr is available for a neighbour */
+ neigh->short_addr = cpu_to_le16(IEEE802154_ADDR_SHORT_UNSPEC);
+ return 0;
+}
+
+static int lowpan_get_iflink(const struct net_device *dev)
+{
+ return lowpan_802154_dev(dev)->wdev->ifindex;
+}
+
+static const struct net_device_ops lowpan_netdev_ops = {
+ .ndo_init = lowpan_dev_init,
+ .ndo_start_xmit = lowpan_xmit,
+ .ndo_open = lowpan_open,
+ .ndo_stop = lowpan_stop,
+ .ndo_neigh_construct = lowpan_neigh_construct,
+ .ndo_get_iflink = lowpan_get_iflink,
+};
+
+static void lowpan_setup(struct net_device *ldev)
+{
+ memset(ldev->broadcast, 0xff, IEEE802154_ADDR_LEN);
+ /* We need an ipv6hdr as minimum len when calling xmit */
+ ldev->hard_header_len = sizeof(struct ipv6hdr);
+ ldev->flags = IFF_BROADCAST | IFF_MULTICAST;
+ ldev->priv_flags |= IFF_NO_QUEUE;
+
+ ldev->netdev_ops = &lowpan_netdev_ops;
+ ldev->header_ops = &lowpan_header_ops;
+ ldev->needs_free_netdev = true;
+ ldev->features |= NETIF_F_NETNS_LOCAL;
+}
+
+static int lowpan_validate(struct nlattr *tb[], struct nlattr *data[],
+ struct netlink_ext_ack *extack)
+{
+ if (tb[IFLA_ADDRESS]) {
+ if (nla_len(tb[IFLA_ADDRESS]) != IEEE802154_ADDR_LEN)
+ return -EINVAL;
+ }
+ return 0;
+}
+
+static int lowpan_newlink(struct net *src_net, struct net_device *ldev,
+ struct nlattr *tb[], struct nlattr *data[],
+ struct netlink_ext_ack *extack)
+{
+ struct net_device *wdev;
+ int ret;
+
+ ASSERT_RTNL();
+
+ pr_debug("adding new link\n");
+
+ if (!tb[IFLA_LINK])
+ return -EINVAL;
+ /* find and hold wpan device */
+ wdev = dev_get_by_index(dev_net(ldev), nla_get_u32(tb[IFLA_LINK]));
+ if (!wdev)
+ return -ENODEV;
+ if (wdev->type != ARPHRD_IEEE802154) {
+ dev_put(wdev);
+ return -EINVAL;
+ }
+
+ if (wdev->ieee802154_ptr->lowpan_dev) {
+ dev_put(wdev);
+ return -EBUSY;
+ }
+
+ lowpan_802154_dev(ldev)->wdev = wdev;
+ /* Set the lowpan hardware address to the wpan hardware address. */
+ __dev_addr_set(ldev, wdev->dev_addr, IEEE802154_ADDR_LEN);
+ /* We need headroom for possible wpan_dev_hard_header call and tailroom
+ * for encryption/fcs handling. The lowpan interface will replace
+ * the IPv6 header with 6LoWPAN header. At worst case the 6LoWPAN
+ * header has LOWPAN_IPHC_MAX_HEADER_LEN more bytes than the IPv6
+ * header.
+ */
+ ldev->needed_headroom = LOWPAN_IPHC_MAX_HEADER_LEN +
+ wdev->needed_headroom;
+ ldev->needed_tailroom = wdev->needed_tailroom;
+
+ ldev->neigh_priv_len = sizeof(struct lowpan_802154_neigh);
+
+ ret = lowpan_register_netdevice(ldev, LOWPAN_LLTYPE_IEEE802154);
+ if (ret < 0) {
+ dev_put(wdev);
+ return ret;
+ }
+
+ wdev->ieee802154_ptr->lowpan_dev = ldev;
+ return 0;
+}
+
+static void lowpan_dellink(struct net_device *ldev, struct list_head *head)
+{
+ struct net_device *wdev = lowpan_802154_dev(ldev)->wdev;
+
+ ASSERT_RTNL();
+
+ wdev->ieee802154_ptr->lowpan_dev = NULL;
+ lowpan_unregister_netdevice(ldev);
+ dev_put(wdev);
+}
+
+static struct rtnl_link_ops lowpan_link_ops __read_mostly = {
+ .kind = "lowpan",
+ .priv_size = LOWPAN_PRIV_SIZE(sizeof(struct lowpan_802154_dev)),
+ .setup = lowpan_setup,
+ .newlink = lowpan_newlink,
+ .dellink = lowpan_dellink,
+ .validate = lowpan_validate,
+};
+
+static inline int __init lowpan_netlink_init(void)
+{
+ return rtnl_link_register(&lowpan_link_ops);
+}
+
+static inline void lowpan_netlink_fini(void)
+{
+ rtnl_link_unregister(&lowpan_link_ops);
+}
+
+static int lowpan_device_event(struct notifier_block *unused,
+ unsigned long event, void *ptr)
+{
+ struct net_device *ndev = netdev_notifier_info_to_dev(ptr);
+ struct wpan_dev *wpan_dev;
+
+ if (ndev->type != ARPHRD_IEEE802154)
+ return NOTIFY_DONE;
+ wpan_dev = ndev->ieee802154_ptr;
+ if (!wpan_dev)
+ return NOTIFY_DONE;
+
+ switch (event) {
+ case NETDEV_UNREGISTER:
+ /* Check if wpan interface is unregistered that we
+ * also delete possible lowpan interfaces which belongs
+ * to the wpan interface.
+ */
+ if (wpan_dev->lowpan_dev)
+ lowpan_dellink(wpan_dev->lowpan_dev, NULL);
+ break;
+ default:
+ return NOTIFY_DONE;
+ }
+
+ return NOTIFY_OK;
+}
+
+static struct notifier_block lowpan_dev_notifier = {
+ .notifier_call = lowpan_device_event,
+};
+
+static int __init lowpan_init_module(void)
+{
+ int err = 0;
+
+ err = lowpan_net_frag_init();
+ if (err < 0)
+ goto out;
+
+ err = lowpan_netlink_init();
+ if (err < 0)
+ goto out_frag;
+
+ err = register_netdevice_notifier(&lowpan_dev_notifier);
+ if (err < 0)
+ goto out_pack;
+
+ return 0;
+
+out_pack:
+ lowpan_netlink_fini();
+out_frag:
+ lowpan_net_frag_exit();
+out:
+ return err;
+}
+
+static void __exit lowpan_cleanup_module(void)
+{
+ lowpan_netlink_fini();
+
+ lowpan_net_frag_exit();
+
+ unregister_netdevice_notifier(&lowpan_dev_notifier);
+}
+
+module_init(lowpan_init_module);
+module_exit(lowpan_cleanup_module);
+MODULE_LICENSE("GPL");
+MODULE_ALIAS_RTNL_LINK("lowpan");
diff --git a/net/ieee802154/6lowpan/reassembly.c b/net/ieee802154/6lowpan/reassembly.c
new file mode 100644
index 000000000..a91283d1e
--- /dev/null
+++ b/net/ieee802154/6lowpan/reassembly.c
@@ -0,0 +1,551 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/* 6LoWPAN fragment reassembly
+ *
+ * Authors:
+ * Alexander Aring <aar@pengutronix.de>
+ *
+ * Based on: net/ipv6/reassembly.c
+ */
+
+#define pr_fmt(fmt) "6LoWPAN: " fmt
+
+#include <linux/net.h>
+#include <linux/list.h>
+#include <linux/netdevice.h>
+#include <linux/random.h>
+#include <linux/jhash.h>
+#include <linux/skbuff.h>
+#include <linux/slab.h>
+#include <linux/export.h>
+
+#include <net/ieee802154_netdev.h>
+#include <net/6lowpan.h>
+#include <net/ipv6_frag.h>
+#include <net/inet_frag.h>
+#include <net/ip.h>
+
+#include "6lowpan_i.h"
+
+static const char lowpan_frags_cache_name[] = "lowpan-frags";
+
+static struct inet_frags lowpan_frags;
+
+static int lowpan_frag_reasm(struct lowpan_frag_queue *fq, struct sk_buff *skb,
+ struct sk_buff *prev, struct net_device *ldev);
+
+static void lowpan_frag_init(struct inet_frag_queue *q, const void *a)
+{
+ const struct frag_lowpan_compare_key *key = a;
+
+ BUILD_BUG_ON(sizeof(*key) > sizeof(q->key));
+ memcpy(&q->key, key, sizeof(*key));
+}
+
+static void lowpan_frag_expire(struct timer_list *t)
+{
+ struct inet_frag_queue *frag = from_timer(frag, t, timer);
+ struct frag_queue *fq;
+
+ fq = container_of(frag, struct frag_queue, q);
+
+ spin_lock(&fq->q.lock);
+
+ if (fq->q.flags & INET_FRAG_COMPLETE)
+ goto out;
+
+ inet_frag_kill(&fq->q);
+out:
+ spin_unlock(&fq->q.lock);
+ inet_frag_put(&fq->q);
+}
+
+static inline struct lowpan_frag_queue *
+fq_find(struct net *net, const struct lowpan_802154_cb *cb,
+ const struct ieee802154_addr *src,
+ const struct ieee802154_addr *dst)
+{
+ struct netns_ieee802154_lowpan *ieee802154_lowpan =
+ net_ieee802154_lowpan(net);
+ struct frag_lowpan_compare_key key = {};
+ struct inet_frag_queue *q;
+
+ key.tag = cb->d_tag;
+ key.d_size = cb->d_size;
+ key.src = *src;
+ key.dst = *dst;
+
+ q = inet_frag_find(ieee802154_lowpan->fqdir, &key);
+ if (!q)
+ return NULL;
+
+ return container_of(q, struct lowpan_frag_queue, q);
+}
+
+static int lowpan_frag_queue(struct lowpan_frag_queue *fq,
+ struct sk_buff *skb, u8 frag_type)
+{
+ struct sk_buff *prev_tail;
+ struct net_device *ldev;
+ int end, offset, err;
+
+ /* inet_frag_queue_* functions use skb->cb; see struct ipfrag_skb_cb
+ * in inet_fragment.c
+ */
+ BUILD_BUG_ON(sizeof(struct lowpan_802154_cb) > sizeof(struct inet_skb_parm));
+ BUILD_BUG_ON(sizeof(struct lowpan_802154_cb) > sizeof(struct inet6_skb_parm));
+
+ if (fq->q.flags & INET_FRAG_COMPLETE)
+ goto err;
+
+ offset = lowpan_802154_cb(skb)->d_offset << 3;
+ end = lowpan_802154_cb(skb)->d_size;
+
+ /* Is this the final fragment? */
+ if (offset + skb->len == end) {
+ /* If we already have some bits beyond end
+ * or have different end, the segment is corrupted.
+ */
+ if (end < fq->q.len ||
+ ((fq->q.flags & INET_FRAG_LAST_IN) && end != fq->q.len))
+ goto err;
+ fq->q.flags |= INET_FRAG_LAST_IN;
+ fq->q.len = end;
+ } else {
+ if (end > fq->q.len) {
+ /* Some bits beyond end -> corruption. */
+ if (fq->q.flags & INET_FRAG_LAST_IN)
+ goto err;
+ fq->q.len = end;
+ }
+ }
+
+ ldev = skb->dev;
+ if (ldev)
+ skb->dev = NULL;
+ barrier();
+
+ prev_tail = fq->q.fragments_tail;
+ err = inet_frag_queue_insert(&fq->q, skb, offset, end);
+ if (err)
+ goto err;
+
+ fq->q.stamp = skb->tstamp;
+ fq->q.mono_delivery_time = skb->mono_delivery_time;
+ if (frag_type == LOWPAN_DISPATCH_FRAG1)
+ fq->q.flags |= INET_FRAG_FIRST_IN;
+
+ fq->q.meat += skb->len;
+ add_frag_mem_limit(fq->q.fqdir, skb->truesize);
+
+ if (fq->q.flags == (INET_FRAG_FIRST_IN | INET_FRAG_LAST_IN) &&
+ fq->q.meat == fq->q.len) {
+ int res;
+ unsigned long orefdst = skb->_skb_refdst;
+
+ skb->_skb_refdst = 0UL;
+ res = lowpan_frag_reasm(fq, skb, prev_tail, ldev);
+ skb->_skb_refdst = orefdst;
+ return res;
+ }
+ skb_dst_drop(skb);
+
+ return -1;
+err:
+ kfree_skb(skb);
+ return -1;
+}
+
+/* Check if this packet is complete.
+ *
+ * It is called with locked fq, and caller must check that
+ * queue is eligible for reassembly i.e. it is not COMPLETE,
+ * the last and the first frames arrived and all the bits are here.
+ */
+static int lowpan_frag_reasm(struct lowpan_frag_queue *fq, struct sk_buff *skb,
+ struct sk_buff *prev_tail, struct net_device *ldev)
+{
+ void *reasm_data;
+
+ inet_frag_kill(&fq->q);
+
+ reasm_data = inet_frag_reasm_prepare(&fq->q, skb, prev_tail);
+ if (!reasm_data)
+ goto out_oom;
+ inet_frag_reasm_finish(&fq->q, skb, reasm_data, false);
+
+ skb->dev = ldev;
+ skb->tstamp = fq->q.stamp;
+ fq->q.rb_fragments = RB_ROOT;
+ fq->q.fragments_tail = NULL;
+ fq->q.last_run_head = NULL;
+
+ return 1;
+out_oom:
+ net_dbg_ratelimited("lowpan_frag_reasm: no memory for reassembly\n");
+ return -1;
+}
+
+static int lowpan_frag_rx_handlers_result(struct sk_buff *skb,
+ lowpan_rx_result res)
+{
+ switch (res) {
+ case RX_QUEUED:
+ return NET_RX_SUCCESS;
+ case RX_CONTINUE:
+ /* nobody cared about this packet */
+ net_warn_ratelimited("%s: received unknown dispatch\n",
+ __func__);
+
+ fallthrough;
+ default:
+ /* all others failure */
+ return NET_RX_DROP;
+ }
+}
+
+static lowpan_rx_result lowpan_frag_rx_h_iphc(struct sk_buff *skb)
+{
+ int ret;
+
+ if (!lowpan_is_iphc(*skb_network_header(skb)))
+ return RX_CONTINUE;
+
+ ret = lowpan_iphc_decompress(skb);
+ if (ret < 0)
+ return RX_DROP;
+
+ return RX_QUEUED;
+}
+
+static int lowpan_invoke_frag_rx_handlers(struct sk_buff *skb)
+{
+ lowpan_rx_result res;
+
+#define CALL_RXH(rxh) \
+ do { \
+ res = rxh(skb); \
+ if (res != RX_CONTINUE) \
+ goto rxh_next; \
+ } while (0)
+
+ /* likely at first */
+ CALL_RXH(lowpan_frag_rx_h_iphc);
+ CALL_RXH(lowpan_rx_h_ipv6);
+
+rxh_next:
+ return lowpan_frag_rx_handlers_result(skb, res);
+#undef CALL_RXH
+}
+
+#define LOWPAN_FRAG_DGRAM_SIZE_HIGH_MASK 0x07
+#define LOWPAN_FRAG_DGRAM_SIZE_HIGH_SHIFT 8
+
+static int lowpan_get_cb(struct sk_buff *skb, u8 frag_type,
+ struct lowpan_802154_cb *cb)
+{
+ bool fail;
+ u8 high = 0, low = 0;
+ __be16 d_tag = 0;
+
+ fail = lowpan_fetch_skb(skb, &high, 1);
+ fail |= lowpan_fetch_skb(skb, &low, 1);
+ /* remove the dispatch value and use first three bits as high value
+ * for the datagram size
+ */
+ cb->d_size = (high & LOWPAN_FRAG_DGRAM_SIZE_HIGH_MASK) <<
+ LOWPAN_FRAG_DGRAM_SIZE_HIGH_SHIFT | low;
+ fail |= lowpan_fetch_skb(skb, &d_tag, 2);
+ cb->d_tag = ntohs(d_tag);
+
+ if (frag_type == LOWPAN_DISPATCH_FRAGN) {
+ fail |= lowpan_fetch_skb(skb, &cb->d_offset, 1);
+ } else {
+ skb_reset_network_header(skb);
+ cb->d_offset = 0;
+ /* check if datagram_size has ipv6hdr on FRAG1 */
+ fail |= cb->d_size < sizeof(struct ipv6hdr);
+ /* check if we can dereference the dispatch value */
+ fail |= !skb->len;
+ }
+
+ if (unlikely(fail))
+ return -EIO;
+
+ return 0;
+}
+
+int lowpan_frag_rcv(struct sk_buff *skb, u8 frag_type)
+{
+ struct lowpan_frag_queue *fq;
+ struct net *net = dev_net(skb->dev);
+ struct lowpan_802154_cb *cb = lowpan_802154_cb(skb);
+ struct ieee802154_hdr hdr = {};
+ int err;
+
+ if (ieee802154_hdr_peek_addrs(skb, &hdr) < 0)
+ goto err;
+
+ err = lowpan_get_cb(skb, frag_type, cb);
+ if (err < 0)
+ goto err;
+
+ if (frag_type == LOWPAN_DISPATCH_FRAG1) {
+ err = lowpan_invoke_frag_rx_handlers(skb);
+ if (err == NET_RX_DROP)
+ goto err;
+ }
+
+ if (cb->d_size > IPV6_MIN_MTU) {
+ net_warn_ratelimited("lowpan_frag_rcv: datagram size exceeds MTU\n");
+ goto err;
+ }
+
+ fq = fq_find(net, cb, &hdr.source, &hdr.dest);
+ if (fq != NULL) {
+ int ret;
+
+ spin_lock(&fq->q.lock);
+ ret = lowpan_frag_queue(fq, skb, frag_type);
+ spin_unlock(&fq->q.lock);
+
+ inet_frag_put(&fq->q);
+ return ret;
+ }
+
+err:
+ kfree_skb(skb);
+ return -1;
+}
+
+#ifdef CONFIG_SYSCTL
+
+static struct ctl_table lowpan_frags_ns_ctl_table[] = {
+ {
+ .procname = "6lowpanfrag_high_thresh",
+ .maxlen = sizeof(unsigned long),
+ .mode = 0644,
+ .proc_handler = proc_doulongvec_minmax,
+ },
+ {
+ .procname = "6lowpanfrag_low_thresh",
+ .maxlen = sizeof(unsigned long),
+ .mode = 0644,
+ .proc_handler = proc_doulongvec_minmax,
+ },
+ {
+ .procname = "6lowpanfrag_time",
+ .maxlen = sizeof(int),
+ .mode = 0644,
+ .proc_handler = proc_dointvec_jiffies,
+ },
+ { }
+};
+
+/* secret interval has been deprecated */
+static int lowpan_frags_secret_interval_unused;
+static struct ctl_table lowpan_frags_ctl_table[] = {
+ {
+ .procname = "6lowpanfrag_secret_interval",
+ .data = &lowpan_frags_secret_interval_unused,
+ .maxlen = sizeof(int),
+ .mode = 0644,
+ .proc_handler = proc_dointvec_jiffies,
+ },
+ { }
+};
+
+static int __net_init lowpan_frags_ns_sysctl_register(struct net *net)
+{
+ struct ctl_table *table;
+ struct ctl_table_header *hdr;
+ struct netns_ieee802154_lowpan *ieee802154_lowpan =
+ net_ieee802154_lowpan(net);
+
+ table = lowpan_frags_ns_ctl_table;
+ if (!net_eq(net, &init_net)) {
+ table = kmemdup(table, sizeof(lowpan_frags_ns_ctl_table),
+ GFP_KERNEL);
+ if (table == NULL)
+ goto err_alloc;
+
+ /* Don't export sysctls to unprivileged users */
+ if (net->user_ns != &init_user_ns)
+ table[0].procname = NULL;
+ }
+
+ table[0].data = &ieee802154_lowpan->fqdir->high_thresh;
+ table[0].extra1 = &ieee802154_lowpan->fqdir->low_thresh;
+ table[1].data = &ieee802154_lowpan->fqdir->low_thresh;
+ table[1].extra2 = &ieee802154_lowpan->fqdir->high_thresh;
+ table[2].data = &ieee802154_lowpan->fqdir->timeout;
+
+ hdr = register_net_sysctl(net, "net/ieee802154/6lowpan", table);
+ if (hdr == NULL)
+ goto err_reg;
+
+ ieee802154_lowpan->sysctl.frags_hdr = hdr;
+ return 0;
+
+err_reg:
+ if (!net_eq(net, &init_net))
+ kfree(table);
+err_alloc:
+ return -ENOMEM;
+}
+
+static void __net_exit lowpan_frags_ns_sysctl_unregister(struct net *net)
+{
+ struct ctl_table *table;
+ struct netns_ieee802154_lowpan *ieee802154_lowpan =
+ net_ieee802154_lowpan(net);
+
+ table = ieee802154_lowpan->sysctl.frags_hdr->ctl_table_arg;
+ unregister_net_sysctl_table(ieee802154_lowpan->sysctl.frags_hdr);
+ if (!net_eq(net, &init_net))
+ kfree(table);
+}
+
+static struct ctl_table_header *lowpan_ctl_header;
+
+static int __init lowpan_frags_sysctl_register(void)
+{
+ lowpan_ctl_header = register_net_sysctl(&init_net,
+ "net/ieee802154/6lowpan",
+ lowpan_frags_ctl_table);
+ return lowpan_ctl_header == NULL ? -ENOMEM : 0;
+}
+
+static void lowpan_frags_sysctl_unregister(void)
+{
+ unregister_net_sysctl_table(lowpan_ctl_header);
+}
+#else
+static inline int lowpan_frags_ns_sysctl_register(struct net *net)
+{
+ return 0;
+}
+
+static inline void lowpan_frags_ns_sysctl_unregister(struct net *net)
+{
+}
+
+static inline int __init lowpan_frags_sysctl_register(void)
+{
+ return 0;
+}
+
+static inline void lowpan_frags_sysctl_unregister(void)
+{
+}
+#endif
+
+static int __net_init lowpan_frags_init_net(struct net *net)
+{
+ struct netns_ieee802154_lowpan *ieee802154_lowpan =
+ net_ieee802154_lowpan(net);
+ int res;
+
+
+ res = fqdir_init(&ieee802154_lowpan->fqdir, &lowpan_frags, net);
+ if (res < 0)
+ return res;
+
+ ieee802154_lowpan->fqdir->high_thresh = IPV6_FRAG_HIGH_THRESH;
+ ieee802154_lowpan->fqdir->low_thresh = IPV6_FRAG_LOW_THRESH;
+ ieee802154_lowpan->fqdir->timeout = IPV6_FRAG_TIMEOUT;
+
+ res = lowpan_frags_ns_sysctl_register(net);
+ if (res < 0)
+ fqdir_exit(ieee802154_lowpan->fqdir);
+ return res;
+}
+
+static void __net_exit lowpan_frags_pre_exit_net(struct net *net)
+{
+ struct netns_ieee802154_lowpan *ieee802154_lowpan =
+ net_ieee802154_lowpan(net);
+
+ fqdir_pre_exit(ieee802154_lowpan->fqdir);
+}
+
+static void __net_exit lowpan_frags_exit_net(struct net *net)
+{
+ struct netns_ieee802154_lowpan *ieee802154_lowpan =
+ net_ieee802154_lowpan(net);
+
+ lowpan_frags_ns_sysctl_unregister(net);
+ fqdir_exit(ieee802154_lowpan->fqdir);
+}
+
+static struct pernet_operations lowpan_frags_ops = {
+ .init = lowpan_frags_init_net,
+ .pre_exit = lowpan_frags_pre_exit_net,
+ .exit = lowpan_frags_exit_net,
+};
+
+static u32 lowpan_key_hashfn(const void *data, u32 len, u32 seed)
+{
+ return jhash2(data,
+ sizeof(struct frag_lowpan_compare_key) / sizeof(u32), seed);
+}
+
+static u32 lowpan_obj_hashfn(const void *data, u32 len, u32 seed)
+{
+ const struct inet_frag_queue *fq = data;
+
+ return jhash2((const u32 *)&fq->key,
+ sizeof(struct frag_lowpan_compare_key) / sizeof(u32), seed);
+}
+
+static int lowpan_obj_cmpfn(struct rhashtable_compare_arg *arg, const void *ptr)
+{
+ const struct frag_lowpan_compare_key *key = arg->key;
+ const struct inet_frag_queue *fq = ptr;
+
+ return !!memcmp(&fq->key, key, sizeof(*key));
+}
+
+static const struct rhashtable_params lowpan_rhash_params = {
+ .head_offset = offsetof(struct inet_frag_queue, node),
+ .hashfn = lowpan_key_hashfn,
+ .obj_hashfn = lowpan_obj_hashfn,
+ .obj_cmpfn = lowpan_obj_cmpfn,
+ .automatic_shrinking = true,
+};
+
+int __init lowpan_net_frag_init(void)
+{
+ int ret;
+
+ lowpan_frags.constructor = lowpan_frag_init;
+ lowpan_frags.destructor = NULL;
+ lowpan_frags.qsize = sizeof(struct frag_queue);
+ lowpan_frags.frag_expire = lowpan_frag_expire;
+ lowpan_frags.frags_cache_name = lowpan_frags_cache_name;
+ lowpan_frags.rhash_params = lowpan_rhash_params;
+ ret = inet_frags_init(&lowpan_frags);
+ if (ret)
+ goto out;
+
+ ret = lowpan_frags_sysctl_register();
+ if (ret)
+ goto err_sysctl;
+
+ ret = register_pernet_subsys(&lowpan_frags_ops);
+ if (ret)
+ goto err_pernet;
+out:
+ return ret;
+err_pernet:
+ lowpan_frags_sysctl_unregister();
+err_sysctl:
+ inet_frags_fini(&lowpan_frags);
+ return ret;
+}
+
+void lowpan_net_frag_exit(void)
+{
+ lowpan_frags_sysctl_unregister();
+ unregister_pernet_subsys(&lowpan_frags_ops);
+ inet_frags_fini(&lowpan_frags);
+}
diff --git a/net/ieee802154/6lowpan/rx.c b/net/ieee802154/6lowpan/rx.c
new file mode 100644
index 000000000..517e6493f
--- /dev/null
+++ b/net/ieee802154/6lowpan/rx.c
@@ -0,0 +1,323 @@
+// SPDX-License-Identifier: GPL-2.0-only
+
+#include <linux/if_arp.h>
+
+#include <net/6lowpan.h>
+#include <net/mac802154.h>
+#include <net/ieee802154_netdev.h>
+
+#include "6lowpan_i.h"
+
+#define LOWPAN_DISPATCH_FIRST 0xc0
+#define LOWPAN_DISPATCH_FRAG_MASK 0xf8
+
+#define LOWPAN_DISPATCH_NALP 0x00
+#define LOWPAN_DISPATCH_ESC 0x40
+#define LOWPAN_DISPATCH_HC1 0x42
+#define LOWPAN_DISPATCH_DFF 0x43
+#define LOWPAN_DISPATCH_BC0 0x50
+#define LOWPAN_DISPATCH_MESH 0x80
+
+static int lowpan_give_skb_to_device(struct sk_buff *skb)
+{
+ skb->protocol = htons(ETH_P_IPV6);
+ skb->dev->stats.rx_packets++;
+ skb->dev->stats.rx_bytes += skb->len;
+
+ return netif_rx(skb);
+}
+
+static int lowpan_rx_handlers_result(struct sk_buff *skb, lowpan_rx_result res)
+{
+ switch (res) {
+ case RX_CONTINUE:
+ /* nobody cared about this packet */
+ net_warn_ratelimited("%s: received unknown dispatch\n",
+ __func__);
+
+ fallthrough;
+ case RX_DROP_UNUSABLE:
+ kfree_skb(skb);
+
+ fallthrough;
+ case RX_DROP:
+ return NET_RX_DROP;
+ case RX_QUEUED:
+ return lowpan_give_skb_to_device(skb);
+ default:
+ break;
+ }
+
+ return NET_RX_DROP;
+}
+
+static inline bool lowpan_is_frag1(u8 dispatch)
+{
+ return (dispatch & LOWPAN_DISPATCH_FRAG_MASK) == LOWPAN_DISPATCH_FRAG1;
+}
+
+static inline bool lowpan_is_fragn(u8 dispatch)
+{
+ return (dispatch & LOWPAN_DISPATCH_FRAG_MASK) == LOWPAN_DISPATCH_FRAGN;
+}
+
+static lowpan_rx_result lowpan_rx_h_frag(struct sk_buff *skb)
+{
+ int ret;
+
+ if (!(lowpan_is_frag1(*skb_network_header(skb)) ||
+ lowpan_is_fragn(*skb_network_header(skb))))
+ return RX_CONTINUE;
+
+ ret = lowpan_frag_rcv(skb, *skb_network_header(skb) &
+ LOWPAN_DISPATCH_FRAG_MASK);
+ if (ret == 1)
+ return RX_QUEUED;
+
+ /* Packet is freed by lowpan_frag_rcv on error or put into the frag
+ * bucket.
+ */
+ return RX_DROP;
+}
+
+int lowpan_iphc_decompress(struct sk_buff *skb)
+{
+ struct ieee802154_hdr hdr;
+
+ if (ieee802154_hdr_peek_addrs(skb, &hdr) < 0)
+ return -EINVAL;
+
+ return lowpan_header_decompress(skb, skb->dev, &hdr.dest, &hdr.source);
+}
+
+static lowpan_rx_result lowpan_rx_h_iphc(struct sk_buff *skb)
+{
+ int ret;
+
+ if (!lowpan_is_iphc(*skb_network_header(skb)))
+ return RX_CONTINUE;
+
+ /* Setting datagram_offset to zero indicates non frag handling
+ * while doing lowpan_header_decompress.
+ */
+ lowpan_802154_cb(skb)->d_size = 0;
+
+ ret = lowpan_iphc_decompress(skb);
+ if (ret < 0)
+ return RX_DROP_UNUSABLE;
+
+ return RX_QUEUED;
+}
+
+lowpan_rx_result lowpan_rx_h_ipv6(struct sk_buff *skb)
+{
+ if (!lowpan_is_ipv6(*skb_network_header(skb)))
+ return RX_CONTINUE;
+
+ /* Pull off the 1-byte of 6lowpan header. */
+ skb_pull(skb, 1);
+ return RX_QUEUED;
+}
+
+static inline bool lowpan_is_esc(u8 dispatch)
+{
+ return dispatch == LOWPAN_DISPATCH_ESC;
+}
+
+static lowpan_rx_result lowpan_rx_h_esc(struct sk_buff *skb)
+{
+ if (!lowpan_is_esc(*skb_network_header(skb)))
+ return RX_CONTINUE;
+
+ net_warn_ratelimited("%s: %s\n", skb->dev->name,
+ "6LoWPAN ESC not supported\n");
+
+ return RX_DROP_UNUSABLE;
+}
+
+static inline bool lowpan_is_hc1(u8 dispatch)
+{
+ return dispatch == LOWPAN_DISPATCH_HC1;
+}
+
+static lowpan_rx_result lowpan_rx_h_hc1(struct sk_buff *skb)
+{
+ if (!lowpan_is_hc1(*skb_network_header(skb)))
+ return RX_CONTINUE;
+
+ net_warn_ratelimited("%s: %s\n", skb->dev->name,
+ "6LoWPAN HC1 not supported\n");
+
+ return RX_DROP_UNUSABLE;
+}
+
+static inline bool lowpan_is_dff(u8 dispatch)
+{
+ return dispatch == LOWPAN_DISPATCH_DFF;
+}
+
+static lowpan_rx_result lowpan_rx_h_dff(struct sk_buff *skb)
+{
+ if (!lowpan_is_dff(*skb_network_header(skb)))
+ return RX_CONTINUE;
+
+ net_warn_ratelimited("%s: %s\n", skb->dev->name,
+ "6LoWPAN DFF not supported\n");
+
+ return RX_DROP_UNUSABLE;
+}
+
+static inline bool lowpan_is_bc0(u8 dispatch)
+{
+ return dispatch == LOWPAN_DISPATCH_BC0;
+}
+
+static lowpan_rx_result lowpan_rx_h_bc0(struct sk_buff *skb)
+{
+ if (!lowpan_is_bc0(*skb_network_header(skb)))
+ return RX_CONTINUE;
+
+ net_warn_ratelimited("%s: %s\n", skb->dev->name,
+ "6LoWPAN BC0 not supported\n");
+
+ return RX_DROP_UNUSABLE;
+}
+
+static inline bool lowpan_is_mesh(u8 dispatch)
+{
+ return (dispatch & LOWPAN_DISPATCH_FIRST) == LOWPAN_DISPATCH_MESH;
+}
+
+static lowpan_rx_result lowpan_rx_h_mesh(struct sk_buff *skb)
+{
+ if (!lowpan_is_mesh(*skb_network_header(skb)))
+ return RX_CONTINUE;
+
+ net_warn_ratelimited("%s: %s\n", skb->dev->name,
+ "6LoWPAN MESH not supported\n");
+
+ return RX_DROP_UNUSABLE;
+}
+
+static int lowpan_invoke_rx_handlers(struct sk_buff *skb)
+{
+ lowpan_rx_result res;
+
+#define CALL_RXH(rxh) \
+ do { \
+ res = rxh(skb); \
+ if (res != RX_CONTINUE) \
+ goto rxh_next; \
+ } while (0)
+
+ /* likely at first */
+ CALL_RXH(lowpan_rx_h_iphc);
+ CALL_RXH(lowpan_rx_h_frag);
+ CALL_RXH(lowpan_rx_h_ipv6);
+ CALL_RXH(lowpan_rx_h_esc);
+ CALL_RXH(lowpan_rx_h_hc1);
+ CALL_RXH(lowpan_rx_h_dff);
+ CALL_RXH(lowpan_rx_h_bc0);
+ CALL_RXH(lowpan_rx_h_mesh);
+
+rxh_next:
+ return lowpan_rx_handlers_result(skb, res);
+#undef CALL_RXH
+}
+
+static inline bool lowpan_is_nalp(u8 dispatch)
+{
+ return (dispatch & LOWPAN_DISPATCH_FIRST) == LOWPAN_DISPATCH_NALP;
+}
+
+/* Lookup for reserved dispatch values at:
+ * https://www.iana.org/assignments/_6lowpan-parameters/_6lowpan-parameters.xhtml#_6lowpan-parameters-1
+ *
+ * Last Updated: 2015-01-22
+ */
+static inline bool lowpan_is_reserved(u8 dispatch)
+{
+ return ((dispatch >= 0x44 && dispatch <= 0x4F) ||
+ (dispatch >= 0x51 && dispatch <= 0x5F) ||
+ (dispatch >= 0xc8 && dispatch <= 0xdf) ||
+ dispatch >= 0xe8);
+}
+
+/* lowpan_rx_h_check checks on generic 6LoWPAN requirements
+ * in MAC and 6LoWPAN header.
+ *
+ * Don't manipulate the skb here, it could be shared buffer.
+ */
+static inline bool lowpan_rx_h_check(struct sk_buff *skb)
+{
+ __le16 fc = ieee802154_get_fc_from_skb(skb);
+
+ /* check on ieee802154 conform 6LoWPAN header */
+ if (!ieee802154_is_data(fc) ||
+ !ieee802154_skb_is_intra_pan_addressing(fc, skb))
+ return false;
+
+ /* check if we can dereference the dispatch */
+ if (unlikely(!skb->len))
+ return false;
+
+ if (lowpan_is_nalp(*skb_network_header(skb)) ||
+ lowpan_is_reserved(*skb_network_header(skb)))
+ return false;
+
+ return true;
+}
+
+static int lowpan_rcv(struct sk_buff *skb, struct net_device *wdev,
+ struct packet_type *pt, struct net_device *orig_wdev)
+{
+ struct net_device *ldev;
+
+ if (wdev->type != ARPHRD_IEEE802154 ||
+ skb->pkt_type == PACKET_OTHERHOST ||
+ !lowpan_rx_h_check(skb))
+ goto drop;
+
+ ldev = wdev->ieee802154_ptr->lowpan_dev;
+ if (!ldev || !netif_running(ldev))
+ goto drop;
+
+ /* Replacing skb->dev and followed rx handlers will manipulate skb. */
+ skb = skb_share_check(skb, GFP_ATOMIC);
+ if (!skb)
+ goto out;
+ skb->dev = ldev;
+
+ /* When receive frag1 it's likely that we manipulate the buffer.
+ * When recevie iphc we manipulate the data buffer. So we need
+ * to unshare the buffer.
+ */
+ if (lowpan_is_frag1(*skb_network_header(skb)) ||
+ lowpan_is_iphc(*skb_network_header(skb))) {
+ skb = skb_unshare(skb, GFP_ATOMIC);
+ if (!skb)
+ goto out;
+ }
+
+ return lowpan_invoke_rx_handlers(skb);
+
+drop:
+ kfree_skb(skb);
+out:
+ return NET_RX_DROP;
+}
+
+static struct packet_type lowpan_packet_type = {
+ .type = htons(ETH_P_IEEE802154),
+ .func = lowpan_rcv,
+};
+
+void lowpan_rx_init(void)
+{
+ dev_add_pack(&lowpan_packet_type);
+}
+
+void lowpan_rx_exit(void)
+{
+ dev_remove_pack(&lowpan_packet_type);
+}
diff --git a/net/ieee802154/6lowpan/tx.c b/net/ieee802154/6lowpan/tx.c
new file mode 100644
index 000000000..0c07662b4
--- /dev/null
+++ b/net/ieee802154/6lowpan/tx.c
@@ -0,0 +1,309 @@
+// SPDX-License-Identifier: GPL-2.0-only
+
+#include <net/6lowpan.h>
+#include <net/ndisc.h>
+#include <net/ieee802154_netdev.h>
+#include <net/mac802154.h>
+
+#include "6lowpan_i.h"
+
+#define LOWPAN_FRAG1_HEAD_SIZE 0x4
+#define LOWPAN_FRAGN_HEAD_SIZE 0x5
+
+struct lowpan_addr_info {
+ struct ieee802154_addr daddr;
+ struct ieee802154_addr saddr;
+};
+
+static inline struct
+lowpan_addr_info *lowpan_skb_priv(const struct sk_buff *skb)
+{
+ WARN_ON_ONCE(skb_headroom(skb) < sizeof(struct lowpan_addr_info));
+ return (struct lowpan_addr_info *)(skb->data -
+ sizeof(struct lowpan_addr_info));
+}
+
+/* This callback will be called from AF_PACKET and IPv6 stack, the AF_PACKET
+ * sockets gives an 8 byte array for addresses only!
+ *
+ * TODO I think AF_PACKET DGRAM (sending/receiving) RAW (sending) makes no
+ * sense here. We should disable it, the right use-case would be AF_INET6
+ * RAW/DGRAM sockets.
+ */
+int lowpan_header_create(struct sk_buff *skb, struct net_device *ldev,
+ unsigned short type, const void *daddr,
+ const void *saddr, unsigned int len)
+{
+ struct wpan_dev *wpan_dev = lowpan_802154_dev(ldev)->wdev->ieee802154_ptr;
+ struct lowpan_addr_info *info = lowpan_skb_priv(skb);
+ struct lowpan_802154_neigh *llneigh = NULL;
+ const struct ipv6hdr *hdr = ipv6_hdr(skb);
+ struct neighbour *n;
+
+ if (!daddr)
+ return -EINVAL;
+
+ /* TODO:
+ * if this package isn't ipv6 one, where should it be routed?
+ */
+ if (type != ETH_P_IPV6)
+ return 0;
+
+ /* intra-pan communication */
+ info->saddr.pan_id = wpan_dev->pan_id;
+ info->daddr.pan_id = info->saddr.pan_id;
+
+ if (!memcmp(daddr, ldev->broadcast, EUI64_ADDR_LEN)) {
+ info->daddr.short_addr = cpu_to_le16(IEEE802154_ADDR_BROADCAST);
+ info->daddr.mode = IEEE802154_ADDR_SHORT;
+ } else {
+ __le16 short_addr = cpu_to_le16(IEEE802154_ADDR_SHORT_UNSPEC);
+
+ n = neigh_lookup(&nd_tbl, &hdr->daddr, ldev);
+ if (n) {
+ llneigh = lowpan_802154_neigh(neighbour_priv(n));
+ read_lock_bh(&n->lock);
+ short_addr = llneigh->short_addr;
+ read_unlock_bh(&n->lock);
+ }
+
+ if (llneigh &&
+ lowpan_802154_is_valid_src_short_addr(short_addr)) {
+ info->daddr.short_addr = short_addr;
+ info->daddr.mode = IEEE802154_ADDR_SHORT;
+ } else {
+ info->daddr.mode = IEEE802154_ADDR_LONG;
+ ieee802154_be64_to_le64(&info->daddr.extended_addr,
+ daddr);
+ }
+
+ if (n)
+ neigh_release(n);
+ }
+
+ if (!saddr) {
+ if (lowpan_802154_is_valid_src_short_addr(wpan_dev->short_addr)) {
+ info->saddr.mode = IEEE802154_ADDR_SHORT;
+ info->saddr.short_addr = wpan_dev->short_addr;
+ } else {
+ info->saddr.mode = IEEE802154_ADDR_LONG;
+ info->saddr.extended_addr = wpan_dev->extended_addr;
+ }
+ } else {
+ info->saddr.mode = IEEE802154_ADDR_LONG;
+ ieee802154_be64_to_le64(&info->saddr.extended_addr, saddr);
+ }
+
+ return 0;
+}
+
+static struct sk_buff*
+lowpan_alloc_frag(struct sk_buff *skb, int size,
+ const struct ieee802154_hdr *master_hdr, bool frag1)
+{
+ struct net_device *wdev = lowpan_802154_dev(skb->dev)->wdev;
+ struct sk_buff *frag;
+ int rc;
+
+ frag = alloc_skb(wdev->needed_headroom + wdev->needed_tailroom + size,
+ GFP_ATOMIC);
+
+ if (likely(frag)) {
+ frag->dev = wdev;
+ frag->priority = skb->priority;
+ skb_reserve(frag, wdev->needed_headroom);
+ skb_reset_network_header(frag);
+ *mac_cb(frag) = *mac_cb(skb);
+
+ if (frag1) {
+ skb_put_data(frag, skb_mac_header(skb), skb->mac_len);
+ } else {
+ rc = wpan_dev_hard_header(frag, wdev,
+ &master_hdr->dest,
+ &master_hdr->source, size);
+ if (rc < 0) {
+ kfree_skb(frag);
+ return ERR_PTR(rc);
+ }
+ }
+ } else {
+ frag = ERR_PTR(-ENOMEM);
+ }
+
+ return frag;
+}
+
+static int
+lowpan_xmit_fragment(struct sk_buff *skb, const struct ieee802154_hdr *wpan_hdr,
+ u8 *frag_hdr, int frag_hdrlen,
+ int offset, int len, bool frag1)
+{
+ struct sk_buff *frag;
+
+ raw_dump_inline(__func__, " fragment header", frag_hdr, frag_hdrlen);
+
+ frag = lowpan_alloc_frag(skb, frag_hdrlen + len, wpan_hdr, frag1);
+ if (IS_ERR(frag))
+ return PTR_ERR(frag);
+
+ skb_put_data(frag, frag_hdr, frag_hdrlen);
+ skb_put_data(frag, skb_network_header(skb) + offset, len);
+
+ raw_dump_table(__func__, " fragment dump", frag->data, frag->len);
+
+ return dev_queue_xmit(frag);
+}
+
+static int
+lowpan_xmit_fragmented(struct sk_buff *skb, struct net_device *ldev,
+ const struct ieee802154_hdr *wpan_hdr, u16 dgram_size,
+ u16 dgram_offset)
+{
+ __be16 frag_tag;
+ u8 frag_hdr[5];
+ int frag_cap, frag_len, payload_cap, rc;
+ int skb_unprocessed, skb_offset;
+
+ frag_tag = htons(lowpan_802154_dev(ldev)->fragment_tag);
+ lowpan_802154_dev(ldev)->fragment_tag++;
+
+ frag_hdr[0] = LOWPAN_DISPATCH_FRAG1 | ((dgram_size >> 8) & 0x07);
+ frag_hdr[1] = dgram_size & 0xff;
+ memcpy(frag_hdr + 2, &frag_tag, sizeof(frag_tag));
+
+ payload_cap = ieee802154_max_payload(wpan_hdr);
+
+ frag_len = round_down(payload_cap - LOWPAN_FRAG1_HEAD_SIZE -
+ skb_network_header_len(skb), 8);
+
+ skb_offset = skb_network_header_len(skb);
+ skb_unprocessed = skb->len - skb->mac_len - skb_offset;
+
+ rc = lowpan_xmit_fragment(skb, wpan_hdr, frag_hdr,
+ LOWPAN_FRAG1_HEAD_SIZE, 0,
+ frag_len + skb_network_header_len(skb),
+ true);
+ if (rc) {
+ pr_debug("%s unable to send FRAG1 packet (tag: %d)",
+ __func__, ntohs(frag_tag));
+ goto err;
+ }
+
+ frag_hdr[0] &= ~LOWPAN_DISPATCH_FRAG1;
+ frag_hdr[0] |= LOWPAN_DISPATCH_FRAGN;
+ frag_cap = round_down(payload_cap - LOWPAN_FRAGN_HEAD_SIZE, 8);
+
+ do {
+ dgram_offset += frag_len;
+ skb_offset += frag_len;
+ skb_unprocessed -= frag_len;
+ frag_len = min(frag_cap, skb_unprocessed);
+
+ frag_hdr[4] = dgram_offset >> 3;
+
+ rc = lowpan_xmit_fragment(skb, wpan_hdr, frag_hdr,
+ LOWPAN_FRAGN_HEAD_SIZE, skb_offset,
+ frag_len, false);
+ if (rc) {
+ pr_debug("%s unable to send a FRAGN packet. (tag: %d, offset: %d)\n",
+ __func__, ntohs(frag_tag), skb_offset);
+ goto err;
+ }
+ } while (skb_unprocessed > frag_cap);
+
+ ldev->stats.tx_packets++;
+ ldev->stats.tx_bytes += dgram_size;
+ consume_skb(skb);
+ return NET_XMIT_SUCCESS;
+
+err:
+ kfree_skb(skb);
+ return rc;
+}
+
+static int lowpan_header(struct sk_buff *skb, struct net_device *ldev,
+ u16 *dgram_size, u16 *dgram_offset)
+{
+ struct wpan_dev *wpan_dev = lowpan_802154_dev(ldev)->wdev->ieee802154_ptr;
+ struct ieee802154_mac_cb *cb = mac_cb_init(skb);
+ struct lowpan_addr_info info;
+
+ memcpy(&info, lowpan_skb_priv(skb), sizeof(info));
+
+ *dgram_size = skb->len;
+ lowpan_header_compress(skb, ldev, &info.daddr, &info.saddr);
+ /* dgram_offset = (saved bytes after compression) + lowpan header len */
+ *dgram_offset = (*dgram_size - skb->len) + skb_network_header_len(skb);
+
+ cb->type = IEEE802154_FC_TYPE_DATA;
+
+ if (info.daddr.mode == IEEE802154_ADDR_SHORT &&
+ ieee802154_is_broadcast_short_addr(info.daddr.short_addr))
+ cb->ackreq = false;
+ else
+ cb->ackreq = wpan_dev->ackreq;
+
+ return wpan_dev_hard_header(skb, lowpan_802154_dev(ldev)->wdev,
+ &info.daddr, &info.saddr, 0);
+}
+
+netdev_tx_t lowpan_xmit(struct sk_buff *skb, struct net_device *ldev)
+{
+ struct ieee802154_hdr wpan_hdr;
+ int max_single, ret;
+ u16 dgram_size, dgram_offset;
+
+ pr_debug("package xmit\n");
+
+ WARN_ON_ONCE(skb->len > IPV6_MIN_MTU);
+
+ /* We must take a copy of the skb before we modify/replace the ipv6
+ * header as the header could be used elsewhere
+ */
+ if (unlikely(skb_headroom(skb) < ldev->needed_headroom ||
+ skb_tailroom(skb) < ldev->needed_tailroom)) {
+ struct sk_buff *nskb;
+
+ nskb = skb_copy_expand(skb, ldev->needed_headroom,
+ ldev->needed_tailroom, GFP_ATOMIC);
+ if (likely(nskb)) {
+ consume_skb(skb);
+ skb = nskb;
+ } else {
+ kfree_skb(skb);
+ return NET_XMIT_DROP;
+ }
+ } else {
+ skb = skb_unshare(skb, GFP_ATOMIC);
+ if (!skb)
+ return NET_XMIT_DROP;
+ }
+
+ ret = lowpan_header(skb, ldev, &dgram_size, &dgram_offset);
+ if (ret < 0) {
+ kfree_skb(skb);
+ return NET_XMIT_DROP;
+ }
+
+ if (ieee802154_hdr_peek(skb, &wpan_hdr) < 0) {
+ kfree_skb(skb);
+ return NET_XMIT_DROP;
+ }
+
+ max_single = ieee802154_max_payload(&wpan_hdr);
+
+ if (skb_tail_pointer(skb) - skb_network_header(skb) <= max_single) {
+ skb->dev = lowpan_802154_dev(ldev)->wdev;
+ ldev->stats.tx_packets++;
+ ldev->stats.tx_bytes += dgram_size;
+ return dev_queue_xmit(skb);
+ } else {
+ netdev_tx_t rc;
+
+ pr_debug("frame is too big, fragmentation is needed\n");
+ rc = lowpan_xmit_fragmented(skb, ldev, &wpan_hdr, dgram_size,
+ dgram_offset);
+
+ return rc < 0 ? NET_XMIT_DROP : rc;
+ }
+}
diff --git a/net/ieee802154/Kconfig b/net/ieee802154/Kconfig
new file mode 100644
index 000000000..bcb05ba97
--- /dev/null
+++ b/net/ieee802154/Kconfig
@@ -0,0 +1,31 @@
+# SPDX-License-Identifier: GPL-2.0-only
+menuconfig IEEE802154
+ tristate "IEEE Std 802.15.4 Low-Rate Wireless Personal Area Networks support"
+ help
+ IEEE Std 802.15.4 defines a low data rate, low power and low
+ complexity short range wireless personal area networks. It was
+ designed to organise networks of sensors, switches, etc automation
+ devices. Maximum allowed data rate is 250 kb/s and typical personal
+ operating space around 10m.
+
+ Say Y here to compile LR-WPAN support into the kernel or say M to
+ compile it as modules.
+
+if IEEE802154
+
+config IEEE802154_NL802154_EXPERIMENTAL
+ bool "IEEE 802.15.4 experimental netlink support"
+ help
+ Adds experimental netlink support for nl802154.
+
+config IEEE802154_SOCKET
+ tristate "IEEE 802.15.4 socket interface"
+ default y
+ help
+ Socket interface for IEEE 802.15.4. Contains DGRAM sockets interface
+ for 802.15.4 dataframes. Also RAW socket interface to build MAC
+ header from userspace.
+
+source "net/ieee802154/6lowpan/Kconfig"
+
+endif
diff --git a/net/ieee802154/Makefile b/net/ieee802154/Makefile
new file mode 100644
index 000000000..f05b7bdae
--- /dev/null
+++ b/net/ieee802154/Makefile
@@ -0,0 +1,10 @@
+# SPDX-License-Identifier: GPL-2.0
+obj-$(CONFIG_IEEE802154) += ieee802154.o
+obj-$(CONFIG_IEEE802154_SOCKET) += ieee802154_socket.o
+obj-y += 6lowpan/
+
+ieee802154-y := netlink.o nl-mac.o nl-phy.o nl_policy.o core.o \
+ header_ops.o sysfs.o nl802154.o trace.o
+ieee802154_socket-y := socket.o
+
+CFLAGS_trace.o := -I$(src)
diff --git a/net/ieee802154/core.c b/net/ieee802154/core.c
new file mode 100644
index 000000000..de259b517
--- /dev/null
+++ b/net/ieee802154/core.c
@@ -0,0 +1,388 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2007, 2008, 2009 Siemens AG
+ */
+
+#include <linux/slab.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/device.h>
+
+#include <net/cfg802154.h>
+#include <net/rtnetlink.h>
+
+#include "ieee802154.h"
+#include "nl802154.h"
+#include "sysfs.h"
+#include "core.h"
+
+/* name for sysfs, %d is appended */
+#define PHY_NAME "phy"
+
+/* RCU-protected (and RTNL for writers) */
+LIST_HEAD(cfg802154_rdev_list);
+int cfg802154_rdev_list_generation;
+
+struct wpan_phy *wpan_phy_find(const char *str)
+{
+ struct device *dev;
+
+ if (WARN_ON(!str))
+ return NULL;
+
+ dev = class_find_device_by_name(&wpan_phy_class, str);
+ if (!dev)
+ return NULL;
+
+ return container_of(dev, struct wpan_phy, dev);
+}
+EXPORT_SYMBOL(wpan_phy_find);
+
+struct wpan_phy_iter_data {
+ int (*fn)(struct wpan_phy *phy, void *data);
+ void *data;
+};
+
+static int wpan_phy_iter(struct device *dev, void *_data)
+{
+ struct wpan_phy_iter_data *wpid = _data;
+ struct wpan_phy *phy = container_of(dev, struct wpan_phy, dev);
+
+ return wpid->fn(phy, wpid->data);
+}
+
+int wpan_phy_for_each(int (*fn)(struct wpan_phy *phy, void *data),
+ void *data)
+{
+ struct wpan_phy_iter_data wpid = {
+ .fn = fn,
+ .data = data,
+ };
+
+ return class_for_each_device(&wpan_phy_class, NULL,
+ &wpid, wpan_phy_iter);
+}
+EXPORT_SYMBOL(wpan_phy_for_each);
+
+struct cfg802154_registered_device *
+cfg802154_rdev_by_wpan_phy_idx(int wpan_phy_idx)
+{
+ struct cfg802154_registered_device *result = NULL, *rdev;
+
+ ASSERT_RTNL();
+
+ list_for_each_entry(rdev, &cfg802154_rdev_list, list) {
+ if (rdev->wpan_phy_idx == wpan_phy_idx) {
+ result = rdev;
+ break;
+ }
+ }
+
+ return result;
+}
+
+struct wpan_phy *wpan_phy_idx_to_wpan_phy(int wpan_phy_idx)
+{
+ struct cfg802154_registered_device *rdev;
+
+ ASSERT_RTNL();
+
+ rdev = cfg802154_rdev_by_wpan_phy_idx(wpan_phy_idx);
+ if (!rdev)
+ return NULL;
+ return &rdev->wpan_phy;
+}
+
+struct wpan_phy *
+wpan_phy_new(const struct cfg802154_ops *ops, size_t priv_size)
+{
+ static atomic_t wpan_phy_counter = ATOMIC_INIT(0);
+ struct cfg802154_registered_device *rdev;
+ size_t alloc_size;
+
+ alloc_size = sizeof(*rdev) + priv_size;
+ rdev = kzalloc(alloc_size, GFP_KERNEL);
+ if (!rdev)
+ return NULL;
+
+ rdev->ops = ops;
+
+ rdev->wpan_phy_idx = atomic_inc_return(&wpan_phy_counter);
+
+ if (unlikely(rdev->wpan_phy_idx < 0)) {
+ /* ugh, wrapped! */
+ atomic_dec(&wpan_phy_counter);
+ kfree(rdev);
+ return NULL;
+ }
+
+ /* atomic_inc_return makes it start at 1, make it start at 0 */
+ rdev->wpan_phy_idx--;
+
+ INIT_LIST_HEAD(&rdev->wpan_dev_list);
+ device_initialize(&rdev->wpan_phy.dev);
+ dev_set_name(&rdev->wpan_phy.dev, PHY_NAME "%d", rdev->wpan_phy_idx);
+
+ rdev->wpan_phy.dev.class = &wpan_phy_class;
+ rdev->wpan_phy.dev.platform_data = rdev;
+
+ wpan_phy_net_set(&rdev->wpan_phy, &init_net);
+
+ init_waitqueue_head(&rdev->dev_wait);
+
+ return &rdev->wpan_phy;
+}
+EXPORT_SYMBOL(wpan_phy_new);
+
+int wpan_phy_register(struct wpan_phy *phy)
+{
+ struct cfg802154_registered_device *rdev = wpan_phy_to_rdev(phy);
+ int ret;
+
+ rtnl_lock();
+ ret = device_add(&phy->dev);
+ if (ret) {
+ rtnl_unlock();
+ return ret;
+ }
+
+ list_add_rcu(&rdev->list, &cfg802154_rdev_list);
+ cfg802154_rdev_list_generation++;
+
+ /* TODO phy registered lock */
+ rtnl_unlock();
+
+ /* TODO nl802154 phy notify */
+
+ return 0;
+}
+EXPORT_SYMBOL(wpan_phy_register);
+
+void wpan_phy_unregister(struct wpan_phy *phy)
+{
+ struct cfg802154_registered_device *rdev = wpan_phy_to_rdev(phy);
+
+ wait_event(rdev->dev_wait, ({
+ int __count;
+ rtnl_lock();
+ __count = rdev->opencount;
+ rtnl_unlock();
+ __count == 0; }));
+
+ rtnl_lock();
+ /* TODO nl802154 phy notify */
+ /* TODO phy registered lock */
+
+ WARN_ON(!list_empty(&rdev->wpan_dev_list));
+
+ /* First remove the hardware from everywhere, this makes
+ * it impossible to find from userspace.
+ */
+ list_del_rcu(&rdev->list);
+ synchronize_rcu();
+
+ cfg802154_rdev_list_generation++;
+
+ device_del(&phy->dev);
+
+ rtnl_unlock();
+}
+EXPORT_SYMBOL(wpan_phy_unregister);
+
+void wpan_phy_free(struct wpan_phy *phy)
+{
+ put_device(&phy->dev);
+}
+EXPORT_SYMBOL(wpan_phy_free);
+
+int cfg802154_switch_netns(struct cfg802154_registered_device *rdev,
+ struct net *net)
+{
+ struct wpan_dev *wpan_dev;
+ int err = 0;
+
+ list_for_each_entry(wpan_dev, &rdev->wpan_dev_list, list) {
+ if (!wpan_dev->netdev)
+ continue;
+ wpan_dev->netdev->features &= ~NETIF_F_NETNS_LOCAL;
+ err = dev_change_net_namespace(wpan_dev->netdev, net, "wpan%d");
+ if (err)
+ break;
+ wpan_dev->netdev->features |= NETIF_F_NETNS_LOCAL;
+ }
+
+ if (err) {
+ /* failed -- clean up to old netns */
+ net = wpan_phy_net(&rdev->wpan_phy);
+
+ list_for_each_entry_continue_reverse(wpan_dev,
+ &rdev->wpan_dev_list,
+ list) {
+ if (!wpan_dev->netdev)
+ continue;
+ wpan_dev->netdev->features &= ~NETIF_F_NETNS_LOCAL;
+ err = dev_change_net_namespace(wpan_dev->netdev, net,
+ "wpan%d");
+ WARN_ON(err);
+ wpan_dev->netdev->features |= NETIF_F_NETNS_LOCAL;
+ }
+
+ return err;
+ }
+
+ wpan_phy_net_set(&rdev->wpan_phy, net);
+
+ err = device_rename(&rdev->wpan_phy.dev, dev_name(&rdev->wpan_phy.dev));
+ WARN_ON(err);
+
+ return 0;
+}
+
+void cfg802154_dev_free(struct cfg802154_registered_device *rdev)
+{
+ kfree(rdev);
+}
+
+static void
+cfg802154_update_iface_num(struct cfg802154_registered_device *rdev,
+ int iftype, int num)
+{
+ ASSERT_RTNL();
+
+ rdev->num_running_ifaces += num;
+}
+
+static int cfg802154_netdev_notifier_call(struct notifier_block *nb,
+ unsigned long state, void *ptr)
+{
+ struct net_device *dev = netdev_notifier_info_to_dev(ptr);
+ struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
+ struct cfg802154_registered_device *rdev;
+
+ if (!wpan_dev)
+ return NOTIFY_DONE;
+
+ rdev = wpan_phy_to_rdev(wpan_dev->wpan_phy);
+
+ /* TODO WARN_ON unspec type */
+
+ switch (state) {
+ /* TODO NETDEV_DEVTYPE */
+ case NETDEV_REGISTER:
+ dev->features |= NETIF_F_NETNS_LOCAL;
+ wpan_dev->identifier = ++rdev->wpan_dev_id;
+ list_add_rcu(&wpan_dev->list, &rdev->wpan_dev_list);
+ rdev->devlist_generation++;
+
+ wpan_dev->netdev = dev;
+ break;
+ case NETDEV_DOWN:
+ cfg802154_update_iface_num(rdev, wpan_dev->iftype, -1);
+
+ rdev->opencount--;
+ wake_up(&rdev->dev_wait);
+ break;
+ case NETDEV_UP:
+ cfg802154_update_iface_num(rdev, wpan_dev->iftype, 1);
+
+ rdev->opencount++;
+ break;
+ case NETDEV_UNREGISTER:
+ /* It is possible to get NETDEV_UNREGISTER
+ * multiple times. To detect that, check
+ * that the interface is still on the list
+ * of registered interfaces, and only then
+ * remove and clean it up.
+ */
+ if (!list_empty(&wpan_dev->list)) {
+ list_del_rcu(&wpan_dev->list);
+ rdev->devlist_generation++;
+ }
+ /* synchronize (so that we won't find this netdev
+ * from other code any more) and then clear the list
+ * head so that the above code can safely check for
+ * !list_empty() to avoid double-cleanup.
+ */
+ synchronize_rcu();
+ INIT_LIST_HEAD(&wpan_dev->list);
+ break;
+ default:
+ return NOTIFY_DONE;
+ }
+
+ return NOTIFY_OK;
+}
+
+static struct notifier_block cfg802154_netdev_notifier = {
+ .notifier_call = cfg802154_netdev_notifier_call,
+};
+
+static void __net_exit cfg802154_pernet_exit(struct net *net)
+{
+ struct cfg802154_registered_device *rdev;
+
+ rtnl_lock();
+ list_for_each_entry(rdev, &cfg802154_rdev_list, list) {
+ if (net_eq(wpan_phy_net(&rdev->wpan_phy), net))
+ WARN_ON(cfg802154_switch_netns(rdev, &init_net));
+ }
+ rtnl_unlock();
+}
+
+static struct pernet_operations cfg802154_pernet_ops = {
+ .exit = cfg802154_pernet_exit,
+};
+
+static int __init wpan_phy_class_init(void)
+{
+ int rc;
+
+ rc = register_pernet_device(&cfg802154_pernet_ops);
+ if (rc)
+ goto err;
+
+ rc = wpan_phy_sysfs_init();
+ if (rc)
+ goto err_sysfs;
+
+ rc = register_netdevice_notifier(&cfg802154_netdev_notifier);
+ if (rc)
+ goto err_nl;
+
+ rc = ieee802154_nl_init();
+ if (rc)
+ goto err_notifier;
+
+ rc = nl802154_init();
+ if (rc)
+ goto err_ieee802154_nl;
+
+ return 0;
+
+err_ieee802154_nl:
+ ieee802154_nl_exit();
+
+err_notifier:
+ unregister_netdevice_notifier(&cfg802154_netdev_notifier);
+err_nl:
+ wpan_phy_sysfs_exit();
+err_sysfs:
+ unregister_pernet_device(&cfg802154_pernet_ops);
+err:
+ return rc;
+}
+subsys_initcall(wpan_phy_class_init);
+
+static void __exit wpan_phy_class_exit(void)
+{
+ nl802154_exit();
+ ieee802154_nl_exit();
+ unregister_netdevice_notifier(&cfg802154_netdev_notifier);
+ wpan_phy_sysfs_exit();
+ unregister_pernet_device(&cfg802154_pernet_ops);
+}
+module_exit(wpan_phy_class_exit);
+
+MODULE_LICENSE("GPL v2");
+MODULE_DESCRIPTION("IEEE 802.15.4 configuration interface");
+MODULE_AUTHOR("Dmitry Eremin-Solenikov");
diff --git a/net/ieee802154/core.h b/net/ieee802154/core.h
new file mode 100644
index 000000000..1c19f575d
--- /dev/null
+++ b/net/ieee802154/core.h
@@ -0,0 +1,50 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __IEEE802154_CORE_H
+#define __IEEE802154_CORE_H
+
+#include <net/cfg802154.h>
+
+struct cfg802154_registered_device {
+ const struct cfg802154_ops *ops;
+ struct list_head list;
+
+ /* wpan_phy index, internal only */
+ int wpan_phy_idx;
+
+ /* also protected by devlist_mtx */
+ int opencount;
+ wait_queue_head_t dev_wait;
+
+ /* protected by RTNL only */
+ int num_running_ifaces;
+
+ /* associated wpan interfaces, protected by rtnl or RCU */
+ struct list_head wpan_dev_list;
+ int devlist_generation, wpan_dev_id;
+
+ /* must be last because of the way we do wpan_phy_priv(),
+ * and it should at least be aligned to NETDEV_ALIGN
+ */
+ struct wpan_phy wpan_phy __aligned(NETDEV_ALIGN);
+};
+
+static inline struct cfg802154_registered_device *
+wpan_phy_to_rdev(struct wpan_phy *wpan_phy)
+{
+ BUG_ON(!wpan_phy);
+ return container_of(wpan_phy, struct cfg802154_registered_device,
+ wpan_phy);
+}
+
+extern struct list_head cfg802154_rdev_list;
+extern int cfg802154_rdev_list_generation;
+
+int cfg802154_switch_netns(struct cfg802154_registered_device *rdev,
+ struct net *net);
+/* free object */
+void cfg802154_dev_free(struct cfg802154_registered_device *rdev);
+struct cfg802154_registered_device *
+cfg802154_rdev_by_wpan_phy_idx(int wpan_phy_idx);
+struct wpan_phy *wpan_phy_idx_to_wpan_phy(int wpan_phy_idx);
+
+#endif /* __IEEE802154_CORE_H */
diff --git a/net/ieee802154/header_ops.c b/net/ieee802154/header_ops.c
new file mode 100644
index 000000000..af337cf62
--- /dev/null
+++ b/net/ieee802154/header_ops.c
@@ -0,0 +1,318 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2014 Fraunhofer ITWM
+ *
+ * Written by:
+ * Phoebe Buckheister <phoebe.buckheister@itwm.fraunhofer.de>
+ */
+
+#include <linux/ieee802154.h>
+
+#include <net/mac802154.h>
+#include <net/ieee802154_netdev.h>
+
+static int
+ieee802154_hdr_push_addr(u8 *buf, const struct ieee802154_addr *addr,
+ bool omit_pan)
+{
+ int pos = 0;
+
+ if (addr->mode == IEEE802154_ADDR_NONE)
+ return 0;
+
+ if (!omit_pan) {
+ memcpy(buf + pos, &addr->pan_id, 2);
+ pos += 2;
+ }
+
+ switch (addr->mode) {
+ case IEEE802154_ADDR_SHORT:
+ memcpy(buf + pos, &addr->short_addr, 2);
+ pos += 2;
+ break;
+
+ case IEEE802154_ADDR_LONG:
+ memcpy(buf + pos, &addr->extended_addr, IEEE802154_ADDR_LEN);
+ pos += IEEE802154_ADDR_LEN;
+ break;
+
+ default:
+ return -EINVAL;
+ }
+
+ return pos;
+}
+
+static int
+ieee802154_hdr_push_sechdr(u8 *buf, const struct ieee802154_sechdr *hdr)
+{
+ int pos = 5;
+
+ memcpy(buf, hdr, 1);
+ memcpy(buf + 1, &hdr->frame_counter, 4);
+
+ switch (hdr->key_id_mode) {
+ case IEEE802154_SCF_KEY_IMPLICIT:
+ return pos;
+
+ case IEEE802154_SCF_KEY_INDEX:
+ break;
+
+ case IEEE802154_SCF_KEY_SHORT_INDEX:
+ memcpy(buf + pos, &hdr->short_src, 4);
+ pos += 4;
+ break;
+
+ case IEEE802154_SCF_KEY_HW_INDEX:
+ memcpy(buf + pos, &hdr->extended_src, IEEE802154_ADDR_LEN);
+ pos += IEEE802154_ADDR_LEN;
+ break;
+ }
+
+ buf[pos++] = hdr->key_id;
+
+ return pos;
+}
+
+int
+ieee802154_hdr_push(struct sk_buff *skb, struct ieee802154_hdr *hdr)
+{
+ u8 buf[IEEE802154_MAX_HEADER_LEN];
+ int pos = 2;
+ int rc;
+ struct ieee802154_hdr_fc *fc = &hdr->fc;
+
+ buf[pos++] = hdr->seq;
+
+ fc->dest_addr_mode = hdr->dest.mode;
+
+ rc = ieee802154_hdr_push_addr(buf + pos, &hdr->dest, false);
+ if (rc < 0)
+ return -EINVAL;
+ pos += rc;
+
+ fc->source_addr_mode = hdr->source.mode;
+
+ if (hdr->source.pan_id == hdr->dest.pan_id &&
+ hdr->dest.mode != IEEE802154_ADDR_NONE)
+ fc->intra_pan = true;
+
+ rc = ieee802154_hdr_push_addr(buf + pos, &hdr->source, fc->intra_pan);
+ if (rc < 0)
+ return -EINVAL;
+ pos += rc;
+
+ if (fc->security_enabled) {
+ fc->version = 1;
+
+ rc = ieee802154_hdr_push_sechdr(buf + pos, &hdr->sec);
+ if (rc < 0)
+ return -EINVAL;
+
+ pos += rc;
+ }
+
+ memcpy(buf, fc, 2);
+
+ memcpy(skb_push(skb, pos), buf, pos);
+
+ return pos;
+}
+EXPORT_SYMBOL_GPL(ieee802154_hdr_push);
+
+static int
+ieee802154_hdr_get_addr(const u8 *buf, int mode, bool omit_pan,
+ struct ieee802154_addr *addr)
+{
+ int pos = 0;
+
+ addr->mode = mode;
+
+ if (mode == IEEE802154_ADDR_NONE)
+ return 0;
+
+ if (!omit_pan) {
+ memcpy(&addr->pan_id, buf + pos, 2);
+ pos += 2;
+ }
+
+ if (mode == IEEE802154_ADDR_SHORT) {
+ memcpy(&addr->short_addr, buf + pos, 2);
+ return pos + 2;
+ } else {
+ memcpy(&addr->extended_addr, buf + pos, IEEE802154_ADDR_LEN);
+ return pos + IEEE802154_ADDR_LEN;
+ }
+}
+
+static int ieee802154_hdr_addr_len(int mode, bool omit_pan)
+{
+ int pan_len = omit_pan ? 0 : 2;
+
+ switch (mode) {
+ case IEEE802154_ADDR_NONE: return 0;
+ case IEEE802154_ADDR_SHORT: return 2 + pan_len;
+ case IEEE802154_ADDR_LONG: return IEEE802154_ADDR_LEN + pan_len;
+ default: return -EINVAL;
+ }
+}
+
+static int
+ieee802154_hdr_get_sechdr(const u8 *buf, struct ieee802154_sechdr *hdr)
+{
+ int pos = 5;
+
+ memcpy(hdr, buf, 1);
+ memcpy(&hdr->frame_counter, buf + 1, 4);
+
+ switch (hdr->key_id_mode) {
+ case IEEE802154_SCF_KEY_IMPLICIT:
+ return pos;
+
+ case IEEE802154_SCF_KEY_INDEX:
+ break;
+
+ case IEEE802154_SCF_KEY_SHORT_INDEX:
+ memcpy(&hdr->short_src, buf + pos, 4);
+ pos += 4;
+ break;
+
+ case IEEE802154_SCF_KEY_HW_INDEX:
+ memcpy(&hdr->extended_src, buf + pos, IEEE802154_ADDR_LEN);
+ pos += IEEE802154_ADDR_LEN;
+ break;
+ }
+
+ hdr->key_id = buf[pos++];
+
+ return pos;
+}
+
+static int ieee802154_sechdr_lengths[4] = {
+ [IEEE802154_SCF_KEY_IMPLICIT] = 5,
+ [IEEE802154_SCF_KEY_INDEX] = 6,
+ [IEEE802154_SCF_KEY_SHORT_INDEX] = 10,
+ [IEEE802154_SCF_KEY_HW_INDEX] = 14,
+};
+
+static int ieee802154_hdr_sechdr_len(u8 sc)
+{
+ return ieee802154_sechdr_lengths[IEEE802154_SCF_KEY_ID_MODE(sc)];
+}
+
+static int ieee802154_hdr_minlen(const struct ieee802154_hdr *hdr)
+{
+ int dlen, slen;
+
+ dlen = ieee802154_hdr_addr_len(hdr->fc.dest_addr_mode, false);
+ slen = ieee802154_hdr_addr_len(hdr->fc.source_addr_mode,
+ hdr->fc.intra_pan);
+
+ if (slen < 0 || dlen < 0)
+ return -EINVAL;
+
+ return 3 + dlen + slen + hdr->fc.security_enabled;
+}
+
+static int
+ieee802154_hdr_get_addrs(const u8 *buf, struct ieee802154_hdr *hdr)
+{
+ int pos = 0;
+
+ pos += ieee802154_hdr_get_addr(buf + pos, hdr->fc.dest_addr_mode,
+ false, &hdr->dest);
+ pos += ieee802154_hdr_get_addr(buf + pos, hdr->fc.source_addr_mode,
+ hdr->fc.intra_pan, &hdr->source);
+
+ if (hdr->fc.intra_pan)
+ hdr->source.pan_id = hdr->dest.pan_id;
+
+ return pos;
+}
+
+int
+ieee802154_hdr_pull(struct sk_buff *skb, struct ieee802154_hdr *hdr)
+{
+ int pos = 3, rc;
+
+ if (!pskb_may_pull(skb, 3))
+ return -EINVAL;
+
+ memcpy(hdr, skb->data, 3);
+
+ rc = ieee802154_hdr_minlen(hdr);
+ if (rc < 0 || !pskb_may_pull(skb, rc))
+ return -EINVAL;
+
+ pos += ieee802154_hdr_get_addrs(skb->data + pos, hdr);
+
+ if (hdr->fc.security_enabled) {
+ int want = pos + ieee802154_hdr_sechdr_len(skb->data[pos]);
+
+ if (!pskb_may_pull(skb, want))
+ return -EINVAL;
+
+ pos += ieee802154_hdr_get_sechdr(skb->data + pos, &hdr->sec);
+ }
+
+ skb_pull(skb, pos);
+ return pos;
+}
+EXPORT_SYMBOL_GPL(ieee802154_hdr_pull);
+
+int
+ieee802154_hdr_peek_addrs(const struct sk_buff *skb, struct ieee802154_hdr *hdr)
+{
+ const u8 *buf = skb_mac_header(skb);
+ int pos = 3, rc;
+
+ if (buf + 3 > skb_tail_pointer(skb))
+ return -EINVAL;
+
+ memcpy(hdr, buf, 3);
+
+ rc = ieee802154_hdr_minlen(hdr);
+ if (rc < 0 || buf + rc > skb_tail_pointer(skb))
+ return -EINVAL;
+
+ pos += ieee802154_hdr_get_addrs(buf + pos, hdr);
+ return pos;
+}
+EXPORT_SYMBOL_GPL(ieee802154_hdr_peek_addrs);
+
+int
+ieee802154_hdr_peek(const struct sk_buff *skb, struct ieee802154_hdr *hdr)
+{
+ const u8 *buf = skb_mac_header(skb);
+ int pos;
+
+ pos = ieee802154_hdr_peek_addrs(skb, hdr);
+ if (pos < 0)
+ return -EINVAL;
+
+ if (hdr->fc.security_enabled) {
+ u8 key_id_mode = IEEE802154_SCF_KEY_ID_MODE(*(buf + pos));
+ int want = pos + ieee802154_sechdr_lengths[key_id_mode];
+
+ if (buf + want > skb_tail_pointer(skb))
+ return -EINVAL;
+
+ pos += ieee802154_hdr_get_sechdr(buf + pos, &hdr->sec);
+ }
+
+ return pos;
+}
+EXPORT_SYMBOL_GPL(ieee802154_hdr_peek);
+
+int ieee802154_max_payload(const struct ieee802154_hdr *hdr)
+{
+ int hlen = ieee802154_hdr_minlen(hdr);
+
+ if (hdr->fc.security_enabled) {
+ hlen += ieee802154_sechdr_lengths[hdr->sec.key_id_mode] - 1;
+ hlen += ieee802154_sechdr_authtag_len(&hdr->sec);
+ }
+
+ return IEEE802154_MTU - hlen - IEEE802154_MFR_SIZE;
+}
+EXPORT_SYMBOL_GPL(ieee802154_max_payload);
diff --git a/net/ieee802154/ieee802154.h b/net/ieee802154/ieee802154.h
new file mode 100644
index 000000000..c5d91f783
--- /dev/null
+++ b/net/ieee802154/ieee802154.h
@@ -0,0 +1,75 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (C) 2007, 2008, 2009 Siemens AG
+ */
+#ifndef IEEE_802154_LOCAL_H
+#define IEEE_802154_LOCAL_H
+
+int __init ieee802154_nl_init(void);
+void ieee802154_nl_exit(void);
+
+#define IEEE802154_OP(_cmd, _func) \
+ { \
+ .cmd = _cmd, \
+ .doit = _func, \
+ .dumpit = NULL, \
+ .flags = GENL_ADMIN_PERM, \
+ }
+
+#define IEEE802154_DUMP(_cmd, _func, _dump) \
+ { \
+ .cmd = _cmd, \
+ .doit = _func, \
+ .dumpit = _dump, \
+ }
+
+struct genl_info;
+
+struct sk_buff *ieee802154_nl_create(int flags, u8 req);
+int ieee802154_nl_mcast(struct sk_buff *msg, unsigned int group);
+struct sk_buff *ieee802154_nl_new_reply(struct genl_info *info,
+ int flags, u8 req);
+int ieee802154_nl_reply(struct sk_buff *msg, struct genl_info *info);
+
+extern struct genl_family nl802154_family;
+
+/* genetlink ops/groups */
+int ieee802154_list_phy(struct sk_buff *skb, struct genl_info *info);
+int ieee802154_dump_phy(struct sk_buff *skb, struct netlink_callback *cb);
+int ieee802154_add_iface(struct sk_buff *skb, struct genl_info *info);
+int ieee802154_del_iface(struct sk_buff *skb, struct genl_info *info);
+
+enum ieee802154_mcgrp_ids {
+ IEEE802154_COORD_MCGRP,
+ IEEE802154_BEACON_MCGRP,
+};
+
+int ieee802154_associate_req(struct sk_buff *skb, struct genl_info *info);
+int ieee802154_associate_resp(struct sk_buff *skb, struct genl_info *info);
+int ieee802154_disassociate_req(struct sk_buff *skb, struct genl_info *info);
+int ieee802154_scan_req(struct sk_buff *skb, struct genl_info *info);
+int ieee802154_start_req(struct sk_buff *skb, struct genl_info *info);
+int ieee802154_list_iface(struct sk_buff *skb, struct genl_info *info);
+int ieee802154_dump_iface(struct sk_buff *skb, struct netlink_callback *cb);
+int ieee802154_set_macparams(struct sk_buff *skb, struct genl_info *info);
+
+int ieee802154_llsec_getparams(struct sk_buff *skb, struct genl_info *info);
+int ieee802154_llsec_setparams(struct sk_buff *skb, struct genl_info *info);
+int ieee802154_llsec_add_key(struct sk_buff *skb, struct genl_info *info);
+int ieee802154_llsec_del_key(struct sk_buff *skb, struct genl_info *info);
+int ieee802154_llsec_dump_keys(struct sk_buff *skb,
+ struct netlink_callback *cb);
+int ieee802154_llsec_add_dev(struct sk_buff *skb, struct genl_info *info);
+int ieee802154_llsec_del_dev(struct sk_buff *skb, struct genl_info *info);
+int ieee802154_llsec_dump_devs(struct sk_buff *skb,
+ struct netlink_callback *cb);
+int ieee802154_llsec_add_devkey(struct sk_buff *skb, struct genl_info *info);
+int ieee802154_llsec_del_devkey(struct sk_buff *skb, struct genl_info *info);
+int ieee802154_llsec_dump_devkeys(struct sk_buff *skb,
+ struct netlink_callback *cb);
+int ieee802154_llsec_add_seclevel(struct sk_buff *skb, struct genl_info *info);
+int ieee802154_llsec_del_seclevel(struct sk_buff *skb, struct genl_info *info);
+int ieee802154_llsec_dump_seclevels(struct sk_buff *skb,
+ struct netlink_callback *cb);
+
+#endif
diff --git a/net/ieee802154/netlink.c b/net/ieee802154/netlink.c
new file mode 100644
index 000000000..7d2de4ee6
--- /dev/null
+++ b/net/ieee802154/netlink.c
@@ -0,0 +1,148 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Netlink interface for IEEE 802.15.4 stack
+ *
+ * Copyright 2007, 2008 Siemens AG
+ *
+ * Written by:
+ * Sergey Lapin <slapin@ossfans.org>
+ * Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
+ * Maxim Osipov <maxim.osipov@siemens.com>
+ */
+
+#include <linux/kernel.h>
+#include <linux/gfp.h>
+#include <net/genetlink.h>
+#include <linux/nl802154.h>
+
+#include "ieee802154.h"
+
+static unsigned int ieee802154_seq_num;
+static DEFINE_SPINLOCK(ieee802154_seq_lock);
+
+/* Requests to userspace */
+struct sk_buff *ieee802154_nl_create(int flags, u8 req)
+{
+ void *hdr;
+ struct sk_buff *msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
+ unsigned long f;
+
+ if (!msg)
+ return NULL;
+
+ spin_lock_irqsave(&ieee802154_seq_lock, f);
+ hdr = genlmsg_put(msg, 0, ieee802154_seq_num++,
+ &nl802154_family, flags, req);
+ spin_unlock_irqrestore(&ieee802154_seq_lock, f);
+ if (!hdr) {
+ nlmsg_free(msg);
+ return NULL;
+ }
+
+ return msg;
+}
+
+int ieee802154_nl_mcast(struct sk_buff *msg, unsigned int group)
+{
+ struct nlmsghdr *nlh = nlmsg_hdr(msg);
+ void *hdr = genlmsg_data(nlmsg_data(nlh));
+
+ genlmsg_end(msg, hdr);
+
+ return genlmsg_multicast(&nl802154_family, msg, 0, group, GFP_ATOMIC);
+}
+
+struct sk_buff *ieee802154_nl_new_reply(struct genl_info *info,
+ int flags, u8 req)
+{
+ void *hdr;
+ struct sk_buff *msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
+
+ if (!msg)
+ return NULL;
+
+ hdr = genlmsg_put_reply(msg, info,
+ &nl802154_family, flags, req);
+ if (!hdr) {
+ nlmsg_free(msg);
+ return NULL;
+ }
+
+ return msg;
+}
+
+int ieee802154_nl_reply(struct sk_buff *msg, struct genl_info *info)
+{
+ struct nlmsghdr *nlh = nlmsg_hdr(msg);
+ void *hdr = genlmsg_data(nlmsg_data(nlh));
+
+ genlmsg_end(msg, hdr);
+
+ return genlmsg_reply(msg, info);
+}
+
+static const struct genl_small_ops ieee802154_ops[] = {
+ /* see nl-phy.c */
+ IEEE802154_DUMP(IEEE802154_LIST_PHY, ieee802154_list_phy,
+ ieee802154_dump_phy),
+ IEEE802154_OP(IEEE802154_ADD_IFACE, ieee802154_add_iface),
+ IEEE802154_OP(IEEE802154_DEL_IFACE, ieee802154_del_iface),
+ /* see nl-mac.c */
+ IEEE802154_OP(IEEE802154_ASSOCIATE_REQ, ieee802154_associate_req),
+ IEEE802154_OP(IEEE802154_ASSOCIATE_RESP, ieee802154_associate_resp),
+ IEEE802154_OP(IEEE802154_DISASSOCIATE_REQ, ieee802154_disassociate_req),
+ IEEE802154_OP(IEEE802154_SCAN_REQ, ieee802154_scan_req),
+ IEEE802154_OP(IEEE802154_START_REQ, ieee802154_start_req),
+ IEEE802154_DUMP(IEEE802154_LIST_IFACE, ieee802154_list_iface,
+ ieee802154_dump_iface),
+ IEEE802154_OP(IEEE802154_SET_MACPARAMS, ieee802154_set_macparams),
+ IEEE802154_OP(IEEE802154_LLSEC_GETPARAMS, ieee802154_llsec_getparams),
+ IEEE802154_OP(IEEE802154_LLSEC_SETPARAMS, ieee802154_llsec_setparams),
+ IEEE802154_DUMP(IEEE802154_LLSEC_LIST_KEY, NULL,
+ ieee802154_llsec_dump_keys),
+ IEEE802154_OP(IEEE802154_LLSEC_ADD_KEY, ieee802154_llsec_add_key),
+ IEEE802154_OP(IEEE802154_LLSEC_DEL_KEY, ieee802154_llsec_del_key),
+ IEEE802154_DUMP(IEEE802154_LLSEC_LIST_DEV, NULL,
+ ieee802154_llsec_dump_devs),
+ IEEE802154_OP(IEEE802154_LLSEC_ADD_DEV, ieee802154_llsec_add_dev),
+ IEEE802154_OP(IEEE802154_LLSEC_DEL_DEV, ieee802154_llsec_del_dev),
+ IEEE802154_DUMP(IEEE802154_LLSEC_LIST_DEVKEY, NULL,
+ ieee802154_llsec_dump_devkeys),
+ IEEE802154_OP(IEEE802154_LLSEC_ADD_DEVKEY, ieee802154_llsec_add_devkey),
+ IEEE802154_OP(IEEE802154_LLSEC_DEL_DEVKEY, ieee802154_llsec_del_devkey),
+ IEEE802154_DUMP(IEEE802154_LLSEC_LIST_SECLEVEL, NULL,
+ ieee802154_llsec_dump_seclevels),
+ IEEE802154_OP(IEEE802154_LLSEC_ADD_SECLEVEL,
+ ieee802154_llsec_add_seclevel),
+ IEEE802154_OP(IEEE802154_LLSEC_DEL_SECLEVEL,
+ ieee802154_llsec_del_seclevel),
+};
+
+static const struct genl_multicast_group ieee802154_mcgrps[] = {
+ [IEEE802154_COORD_MCGRP] = { .name = IEEE802154_MCAST_COORD_NAME, },
+ [IEEE802154_BEACON_MCGRP] = { .name = IEEE802154_MCAST_BEACON_NAME, },
+};
+
+struct genl_family nl802154_family __ro_after_init = {
+ .hdrsize = 0,
+ .name = IEEE802154_NL_NAME,
+ .version = 1,
+ .maxattr = IEEE802154_ATTR_MAX,
+ .policy = ieee802154_policy,
+ .module = THIS_MODULE,
+ .small_ops = ieee802154_ops,
+ .n_small_ops = ARRAY_SIZE(ieee802154_ops),
+ .resv_start_op = IEEE802154_LLSEC_DEL_SECLEVEL + 1,
+ .mcgrps = ieee802154_mcgrps,
+ .n_mcgrps = ARRAY_SIZE(ieee802154_mcgrps),
+};
+
+int __init ieee802154_nl_init(void)
+{
+ return genl_register_family(&nl802154_family);
+}
+
+void ieee802154_nl_exit(void)
+{
+ genl_unregister_family(&nl802154_family);
+}
diff --git a/net/ieee802154/nl-mac.c b/net/ieee802154/nl-mac.c
new file mode 100644
index 000000000..29bf97640
--- /dev/null
+++ b/net/ieee802154/nl-mac.c
@@ -0,0 +1,1344 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Netlink interface for IEEE 802.15.4 stack
+ *
+ * Copyright 2007, 2008 Siemens AG
+ *
+ * Written by:
+ * Sergey Lapin <slapin@ossfans.org>
+ * Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
+ * Maxim Osipov <maxim.osipov@siemens.com>
+ */
+
+#include <linux/gfp.h>
+#include <linux/kernel.h>
+#include <linux/if_arp.h>
+#include <linux/netdevice.h>
+#include <linux/ieee802154.h>
+#include <net/netlink.h>
+#include <net/genetlink.h>
+#include <net/sock.h>
+#include <linux/nl802154.h>
+#include <linux/export.h>
+#include <net/af_ieee802154.h>
+#include <net/ieee802154_netdev.h>
+#include <net/cfg802154.h>
+
+#include "ieee802154.h"
+
+static int nla_put_hwaddr(struct sk_buff *msg, int type, __le64 hwaddr,
+ int padattr)
+{
+ return nla_put_u64_64bit(msg, type, swab64((__force u64)hwaddr),
+ padattr);
+}
+
+static __le64 nla_get_hwaddr(const struct nlattr *nla)
+{
+ return ieee802154_devaddr_from_raw(nla_data(nla));
+}
+
+static int nla_put_shortaddr(struct sk_buff *msg, int type, __le16 addr)
+{
+ return nla_put_u16(msg, type, le16_to_cpu(addr));
+}
+
+static __le16 nla_get_shortaddr(const struct nlattr *nla)
+{
+ return cpu_to_le16(nla_get_u16(nla));
+}
+
+static int ieee802154_nl_start_confirm(struct net_device *dev, u8 status)
+{
+ struct sk_buff *msg;
+
+ pr_debug("%s\n", __func__);
+
+ msg = ieee802154_nl_create(0, IEEE802154_START_CONF);
+ if (!msg)
+ return -ENOBUFS;
+
+ if (nla_put_string(msg, IEEE802154_ATTR_DEV_NAME, dev->name) ||
+ nla_put_u32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex) ||
+ nla_put(msg, IEEE802154_ATTR_HW_ADDR, IEEE802154_ADDR_LEN,
+ dev->dev_addr) ||
+ nla_put_u8(msg, IEEE802154_ATTR_STATUS, status))
+ goto nla_put_failure;
+ return ieee802154_nl_mcast(msg, IEEE802154_COORD_MCGRP);
+
+nla_put_failure:
+ nlmsg_free(msg);
+ return -ENOBUFS;
+}
+
+static int ieee802154_nl_fill_iface(struct sk_buff *msg, u32 portid,
+ u32 seq, int flags, struct net_device *dev)
+{
+ void *hdr;
+ struct wpan_phy *phy;
+ struct ieee802154_mlme_ops *ops;
+ __le16 short_addr, pan_id;
+
+ pr_debug("%s\n", __func__);
+
+ hdr = genlmsg_put(msg, 0, seq, &nl802154_family, flags,
+ IEEE802154_LIST_IFACE);
+ if (!hdr)
+ goto out;
+
+ ops = ieee802154_mlme_ops(dev);
+ phy = dev->ieee802154_ptr->wpan_phy;
+ BUG_ON(!phy);
+ get_device(&phy->dev);
+
+ rtnl_lock();
+ short_addr = dev->ieee802154_ptr->short_addr;
+ pan_id = dev->ieee802154_ptr->pan_id;
+ rtnl_unlock();
+
+ if (nla_put_string(msg, IEEE802154_ATTR_DEV_NAME, dev->name) ||
+ nla_put_string(msg, IEEE802154_ATTR_PHY_NAME, wpan_phy_name(phy)) ||
+ nla_put_u32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex) ||
+ nla_put(msg, IEEE802154_ATTR_HW_ADDR, IEEE802154_ADDR_LEN,
+ dev->dev_addr) ||
+ nla_put_shortaddr(msg, IEEE802154_ATTR_SHORT_ADDR, short_addr) ||
+ nla_put_shortaddr(msg, IEEE802154_ATTR_PAN_ID, pan_id))
+ goto nla_put_failure;
+
+ if (ops->get_mac_params) {
+ struct ieee802154_mac_params params;
+
+ rtnl_lock();
+ ops->get_mac_params(dev, &params);
+ rtnl_unlock();
+
+ if (nla_put_s8(msg, IEEE802154_ATTR_TXPOWER,
+ params.transmit_power / 100) ||
+ nla_put_u8(msg, IEEE802154_ATTR_LBT_ENABLED, params.lbt) ||
+ nla_put_u8(msg, IEEE802154_ATTR_CCA_MODE,
+ params.cca.mode) ||
+ nla_put_s32(msg, IEEE802154_ATTR_CCA_ED_LEVEL,
+ params.cca_ed_level / 100) ||
+ nla_put_u8(msg, IEEE802154_ATTR_CSMA_RETRIES,
+ params.csma_retries) ||
+ nla_put_u8(msg, IEEE802154_ATTR_CSMA_MIN_BE,
+ params.min_be) ||
+ nla_put_u8(msg, IEEE802154_ATTR_CSMA_MAX_BE,
+ params.max_be) ||
+ nla_put_s8(msg, IEEE802154_ATTR_FRAME_RETRIES,
+ params.frame_retries))
+ goto nla_put_failure;
+ }
+
+ wpan_phy_put(phy);
+ genlmsg_end(msg, hdr);
+ return 0;
+
+nla_put_failure:
+ wpan_phy_put(phy);
+ genlmsg_cancel(msg, hdr);
+out:
+ return -EMSGSIZE;
+}
+
+/* Requests from userspace */
+static struct net_device *ieee802154_nl_get_dev(struct genl_info *info)
+{
+ struct net_device *dev;
+
+ if (info->attrs[IEEE802154_ATTR_DEV_NAME]) {
+ char name[IFNAMSIZ + 1];
+
+ nla_strscpy(name, info->attrs[IEEE802154_ATTR_DEV_NAME],
+ sizeof(name));
+ dev = dev_get_by_name(&init_net, name);
+ } else if (info->attrs[IEEE802154_ATTR_DEV_INDEX]) {
+ dev = dev_get_by_index(&init_net,
+ nla_get_u32(info->attrs[IEEE802154_ATTR_DEV_INDEX]));
+ } else {
+ return NULL;
+ }
+
+ if (!dev)
+ return NULL;
+
+ if (dev->type != ARPHRD_IEEE802154) {
+ dev_put(dev);
+ return NULL;
+ }
+
+ return dev;
+}
+
+int ieee802154_associate_req(struct sk_buff *skb, struct genl_info *info)
+{
+ struct net_device *dev;
+ struct ieee802154_addr addr;
+ u8 page;
+ int ret = -EOPNOTSUPP;
+
+ if (!info->attrs[IEEE802154_ATTR_CHANNEL] ||
+ !info->attrs[IEEE802154_ATTR_COORD_PAN_ID] ||
+ (!info->attrs[IEEE802154_ATTR_COORD_HW_ADDR] &&
+ !info->attrs[IEEE802154_ATTR_COORD_SHORT_ADDR]) ||
+ !info->attrs[IEEE802154_ATTR_CAPABILITY])
+ return -EINVAL;
+
+ dev = ieee802154_nl_get_dev(info);
+ if (!dev)
+ return -ENODEV;
+ if (!ieee802154_mlme_ops(dev)->assoc_req)
+ goto out;
+
+ if (info->attrs[IEEE802154_ATTR_COORD_HW_ADDR]) {
+ addr.mode = IEEE802154_ADDR_LONG;
+ addr.extended_addr = nla_get_hwaddr(
+ info->attrs[IEEE802154_ATTR_COORD_HW_ADDR]);
+ } else {
+ addr.mode = IEEE802154_ADDR_SHORT;
+ addr.short_addr = nla_get_shortaddr(
+ info->attrs[IEEE802154_ATTR_COORD_SHORT_ADDR]);
+ }
+ addr.pan_id = nla_get_shortaddr(
+ info->attrs[IEEE802154_ATTR_COORD_PAN_ID]);
+
+ if (info->attrs[IEEE802154_ATTR_PAGE])
+ page = nla_get_u8(info->attrs[IEEE802154_ATTR_PAGE]);
+ else
+ page = 0;
+
+ ret = ieee802154_mlme_ops(dev)->assoc_req(dev, &addr,
+ nla_get_u8(info->attrs[IEEE802154_ATTR_CHANNEL]),
+ page,
+ nla_get_u8(info->attrs[IEEE802154_ATTR_CAPABILITY]));
+
+out:
+ dev_put(dev);
+ return ret;
+}
+
+int ieee802154_associate_resp(struct sk_buff *skb, struct genl_info *info)
+{
+ struct net_device *dev;
+ struct ieee802154_addr addr;
+ int ret = -EOPNOTSUPP;
+
+ if (!info->attrs[IEEE802154_ATTR_STATUS] ||
+ !info->attrs[IEEE802154_ATTR_DEST_HW_ADDR] ||
+ !info->attrs[IEEE802154_ATTR_DEST_SHORT_ADDR])
+ return -EINVAL;
+
+ dev = ieee802154_nl_get_dev(info);
+ if (!dev)
+ return -ENODEV;
+ if (!ieee802154_mlme_ops(dev)->assoc_resp)
+ goto out;
+
+ addr.mode = IEEE802154_ADDR_LONG;
+ addr.extended_addr = nla_get_hwaddr(
+ info->attrs[IEEE802154_ATTR_DEST_HW_ADDR]);
+ rtnl_lock();
+ addr.pan_id = dev->ieee802154_ptr->pan_id;
+ rtnl_unlock();
+
+ ret = ieee802154_mlme_ops(dev)->assoc_resp(dev, &addr,
+ nla_get_shortaddr(info->attrs[IEEE802154_ATTR_DEST_SHORT_ADDR]),
+ nla_get_u8(info->attrs[IEEE802154_ATTR_STATUS]));
+
+out:
+ dev_put(dev);
+ return ret;
+}
+
+int ieee802154_disassociate_req(struct sk_buff *skb, struct genl_info *info)
+{
+ struct net_device *dev;
+ struct ieee802154_addr addr;
+ int ret = -EOPNOTSUPP;
+
+ if ((!info->attrs[IEEE802154_ATTR_DEST_HW_ADDR] &&
+ !info->attrs[IEEE802154_ATTR_DEST_SHORT_ADDR]) ||
+ !info->attrs[IEEE802154_ATTR_REASON])
+ return -EINVAL;
+
+ dev = ieee802154_nl_get_dev(info);
+ if (!dev)
+ return -ENODEV;
+ if (!ieee802154_mlme_ops(dev)->disassoc_req)
+ goto out;
+
+ if (info->attrs[IEEE802154_ATTR_DEST_HW_ADDR]) {
+ addr.mode = IEEE802154_ADDR_LONG;
+ addr.extended_addr = nla_get_hwaddr(
+ info->attrs[IEEE802154_ATTR_DEST_HW_ADDR]);
+ } else {
+ addr.mode = IEEE802154_ADDR_SHORT;
+ addr.short_addr = nla_get_shortaddr(
+ info->attrs[IEEE802154_ATTR_DEST_SHORT_ADDR]);
+ }
+ rtnl_lock();
+ addr.pan_id = dev->ieee802154_ptr->pan_id;
+ rtnl_unlock();
+
+ ret = ieee802154_mlme_ops(dev)->disassoc_req(dev, &addr,
+ nla_get_u8(info->attrs[IEEE802154_ATTR_REASON]));
+
+out:
+ dev_put(dev);
+ return ret;
+}
+
+/* PANid, channel, beacon_order = 15, superframe_order = 15,
+ * PAN_coordinator, battery_life_extension = 0,
+ * coord_realignment = 0, security_enable = 0
+*/
+int ieee802154_start_req(struct sk_buff *skb, struct genl_info *info)
+{
+ struct net_device *dev;
+ struct ieee802154_addr addr;
+
+ u8 channel, bcn_ord, sf_ord;
+ u8 page;
+ int pan_coord, blx, coord_realign;
+ int ret = -EBUSY;
+
+ if (!info->attrs[IEEE802154_ATTR_COORD_PAN_ID] ||
+ !info->attrs[IEEE802154_ATTR_COORD_SHORT_ADDR] ||
+ !info->attrs[IEEE802154_ATTR_CHANNEL] ||
+ !info->attrs[IEEE802154_ATTR_BCN_ORD] ||
+ !info->attrs[IEEE802154_ATTR_SF_ORD] ||
+ !info->attrs[IEEE802154_ATTR_PAN_COORD] ||
+ !info->attrs[IEEE802154_ATTR_BAT_EXT] ||
+ !info->attrs[IEEE802154_ATTR_COORD_REALIGN]
+ )
+ return -EINVAL;
+
+ dev = ieee802154_nl_get_dev(info);
+ if (!dev)
+ return -ENODEV;
+
+ if (netif_running(dev))
+ goto out;
+
+ if (!ieee802154_mlme_ops(dev)->start_req) {
+ ret = -EOPNOTSUPP;
+ goto out;
+ }
+
+ addr.mode = IEEE802154_ADDR_SHORT;
+ addr.short_addr = nla_get_shortaddr(
+ info->attrs[IEEE802154_ATTR_COORD_SHORT_ADDR]);
+ addr.pan_id = nla_get_shortaddr(
+ info->attrs[IEEE802154_ATTR_COORD_PAN_ID]);
+
+ channel = nla_get_u8(info->attrs[IEEE802154_ATTR_CHANNEL]);
+ bcn_ord = nla_get_u8(info->attrs[IEEE802154_ATTR_BCN_ORD]);
+ sf_ord = nla_get_u8(info->attrs[IEEE802154_ATTR_SF_ORD]);
+ pan_coord = nla_get_u8(info->attrs[IEEE802154_ATTR_PAN_COORD]);
+ blx = nla_get_u8(info->attrs[IEEE802154_ATTR_BAT_EXT]);
+ coord_realign = nla_get_u8(info->attrs[IEEE802154_ATTR_COORD_REALIGN]);
+
+ if (info->attrs[IEEE802154_ATTR_PAGE])
+ page = nla_get_u8(info->attrs[IEEE802154_ATTR_PAGE]);
+ else
+ page = 0;
+
+ if (addr.short_addr == cpu_to_le16(IEEE802154_ADDR_BROADCAST)) {
+ ieee802154_nl_start_confirm(dev, IEEE802154_NO_SHORT_ADDRESS);
+ dev_put(dev);
+ return -EINVAL;
+ }
+
+ rtnl_lock();
+ ret = ieee802154_mlme_ops(dev)->start_req(dev, &addr, channel, page,
+ bcn_ord, sf_ord, pan_coord, blx, coord_realign);
+ rtnl_unlock();
+
+ /* FIXME: add validation for unused parameters to be sane
+ * for SoftMAC
+ */
+ ieee802154_nl_start_confirm(dev, IEEE802154_SUCCESS);
+
+out:
+ dev_put(dev);
+ return ret;
+}
+
+int ieee802154_scan_req(struct sk_buff *skb, struct genl_info *info)
+{
+ struct net_device *dev;
+ int ret = -EOPNOTSUPP;
+ u8 type;
+ u32 channels;
+ u8 duration;
+ u8 page;
+
+ if (!info->attrs[IEEE802154_ATTR_SCAN_TYPE] ||
+ !info->attrs[IEEE802154_ATTR_CHANNELS] ||
+ !info->attrs[IEEE802154_ATTR_DURATION])
+ return -EINVAL;
+
+ dev = ieee802154_nl_get_dev(info);
+ if (!dev)
+ return -ENODEV;
+ if (!ieee802154_mlme_ops(dev)->scan_req)
+ goto out;
+
+ type = nla_get_u8(info->attrs[IEEE802154_ATTR_SCAN_TYPE]);
+ channels = nla_get_u32(info->attrs[IEEE802154_ATTR_CHANNELS]);
+ duration = nla_get_u8(info->attrs[IEEE802154_ATTR_DURATION]);
+
+ if (info->attrs[IEEE802154_ATTR_PAGE])
+ page = nla_get_u8(info->attrs[IEEE802154_ATTR_PAGE]);
+ else
+ page = 0;
+
+ ret = ieee802154_mlme_ops(dev)->scan_req(dev, type, channels,
+ page, duration);
+
+out:
+ dev_put(dev);
+ return ret;
+}
+
+int ieee802154_list_iface(struct sk_buff *skb, struct genl_info *info)
+{
+ /* Request for interface name, index, type, IEEE address,
+ * PAN Id, short address
+ */
+ struct sk_buff *msg;
+ struct net_device *dev = NULL;
+ int rc = -ENOBUFS;
+
+ pr_debug("%s\n", __func__);
+
+ dev = ieee802154_nl_get_dev(info);
+ if (!dev)
+ return -ENODEV;
+
+ msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
+ if (!msg)
+ goto out_dev;
+
+ rc = ieee802154_nl_fill_iface(msg, info->snd_portid, info->snd_seq,
+ 0, dev);
+ if (rc < 0)
+ goto out_free;
+
+ dev_put(dev);
+
+ return genlmsg_reply(msg, info);
+out_free:
+ nlmsg_free(msg);
+out_dev:
+ dev_put(dev);
+ return rc;
+}
+
+int ieee802154_dump_iface(struct sk_buff *skb, struct netlink_callback *cb)
+{
+ struct net *net = sock_net(skb->sk);
+ struct net_device *dev;
+ int idx;
+ int s_idx = cb->args[0];
+
+ pr_debug("%s\n", __func__);
+
+ idx = 0;
+ for_each_netdev(net, dev) {
+ if (idx < s_idx || dev->type != ARPHRD_IEEE802154)
+ goto cont;
+
+ if (ieee802154_nl_fill_iface(skb, NETLINK_CB(cb->skb).portid,
+ cb->nlh->nlmsg_seq,
+ NLM_F_MULTI, dev) < 0)
+ break;
+cont:
+ idx++;
+ }
+ cb->args[0] = idx;
+
+ return skb->len;
+}
+
+int ieee802154_set_macparams(struct sk_buff *skb, struct genl_info *info)
+{
+ struct net_device *dev = NULL;
+ struct ieee802154_mlme_ops *ops;
+ struct ieee802154_mac_params params;
+ struct wpan_phy *phy;
+ int rc = -EINVAL;
+
+ pr_debug("%s\n", __func__);
+
+ dev = ieee802154_nl_get_dev(info);
+ if (!dev)
+ return -ENODEV;
+
+ ops = ieee802154_mlme_ops(dev);
+
+ if (!ops->get_mac_params || !ops->set_mac_params) {
+ rc = -EOPNOTSUPP;
+ goto out;
+ }
+
+ if (netif_running(dev)) {
+ rc = -EBUSY;
+ goto out;
+ }
+
+ if (!info->attrs[IEEE802154_ATTR_LBT_ENABLED] &&
+ !info->attrs[IEEE802154_ATTR_CCA_MODE] &&
+ !info->attrs[IEEE802154_ATTR_CCA_ED_LEVEL] &&
+ !info->attrs[IEEE802154_ATTR_CSMA_RETRIES] &&
+ !info->attrs[IEEE802154_ATTR_CSMA_MIN_BE] &&
+ !info->attrs[IEEE802154_ATTR_CSMA_MAX_BE] &&
+ !info->attrs[IEEE802154_ATTR_FRAME_RETRIES])
+ goto out;
+
+ phy = dev->ieee802154_ptr->wpan_phy;
+ get_device(&phy->dev);
+
+ rtnl_lock();
+ ops->get_mac_params(dev, &params);
+
+ if (info->attrs[IEEE802154_ATTR_TXPOWER])
+ params.transmit_power = nla_get_s8(info->attrs[IEEE802154_ATTR_TXPOWER]) * 100;
+
+ if (info->attrs[IEEE802154_ATTR_LBT_ENABLED])
+ params.lbt = nla_get_u8(info->attrs[IEEE802154_ATTR_LBT_ENABLED]);
+
+ if (info->attrs[IEEE802154_ATTR_CCA_MODE])
+ params.cca.mode = nla_get_u8(info->attrs[IEEE802154_ATTR_CCA_MODE]);
+
+ if (info->attrs[IEEE802154_ATTR_CCA_ED_LEVEL])
+ params.cca_ed_level = nla_get_s32(info->attrs[IEEE802154_ATTR_CCA_ED_LEVEL]) * 100;
+
+ if (info->attrs[IEEE802154_ATTR_CSMA_RETRIES])
+ params.csma_retries = nla_get_u8(info->attrs[IEEE802154_ATTR_CSMA_RETRIES]);
+
+ if (info->attrs[IEEE802154_ATTR_CSMA_MIN_BE])
+ params.min_be = nla_get_u8(info->attrs[IEEE802154_ATTR_CSMA_MIN_BE]);
+
+ if (info->attrs[IEEE802154_ATTR_CSMA_MAX_BE])
+ params.max_be = nla_get_u8(info->attrs[IEEE802154_ATTR_CSMA_MAX_BE]);
+
+ if (info->attrs[IEEE802154_ATTR_FRAME_RETRIES])
+ params.frame_retries = nla_get_s8(info->attrs[IEEE802154_ATTR_FRAME_RETRIES]);
+
+ rc = ops->set_mac_params(dev, &params);
+ rtnl_unlock();
+
+ wpan_phy_put(phy);
+ dev_put(dev);
+
+ return 0;
+
+out:
+ dev_put(dev);
+ return rc;
+}
+
+static int
+ieee802154_llsec_parse_key_id(struct genl_info *info,
+ struct ieee802154_llsec_key_id *desc)
+{
+ memset(desc, 0, sizeof(*desc));
+
+ if (!info->attrs[IEEE802154_ATTR_LLSEC_KEY_MODE])
+ return -EINVAL;
+
+ desc->mode = nla_get_u8(info->attrs[IEEE802154_ATTR_LLSEC_KEY_MODE]);
+
+ if (desc->mode == IEEE802154_SCF_KEY_IMPLICIT) {
+ if (!info->attrs[IEEE802154_ATTR_PAN_ID])
+ return -EINVAL;
+
+ desc->device_addr.pan_id = nla_get_shortaddr(info->attrs[IEEE802154_ATTR_PAN_ID]);
+
+ if (info->attrs[IEEE802154_ATTR_SHORT_ADDR]) {
+ desc->device_addr.mode = IEEE802154_ADDR_SHORT;
+ desc->device_addr.short_addr = nla_get_shortaddr(info->attrs[IEEE802154_ATTR_SHORT_ADDR]);
+ } else {
+ if (!info->attrs[IEEE802154_ATTR_HW_ADDR])
+ return -EINVAL;
+
+ desc->device_addr.mode = IEEE802154_ADDR_LONG;
+ desc->device_addr.extended_addr = nla_get_hwaddr(info->attrs[IEEE802154_ATTR_HW_ADDR]);
+ }
+ }
+
+ if (desc->mode != IEEE802154_SCF_KEY_IMPLICIT &&
+ !info->attrs[IEEE802154_ATTR_LLSEC_KEY_ID])
+ return -EINVAL;
+
+ if (desc->mode == IEEE802154_SCF_KEY_SHORT_INDEX &&
+ !info->attrs[IEEE802154_ATTR_LLSEC_KEY_SOURCE_SHORT])
+ return -EINVAL;
+
+ if (desc->mode == IEEE802154_SCF_KEY_HW_INDEX &&
+ !info->attrs[IEEE802154_ATTR_LLSEC_KEY_SOURCE_EXTENDED])
+ return -EINVAL;
+
+ if (desc->mode != IEEE802154_SCF_KEY_IMPLICIT)
+ desc->id = nla_get_u8(info->attrs[IEEE802154_ATTR_LLSEC_KEY_ID]);
+
+ switch (desc->mode) {
+ case IEEE802154_SCF_KEY_SHORT_INDEX:
+ {
+ u32 source = nla_get_u32(info->attrs[IEEE802154_ATTR_LLSEC_KEY_SOURCE_SHORT]);
+
+ desc->short_source = cpu_to_le32(source);
+ break;
+ }
+ case IEEE802154_SCF_KEY_HW_INDEX:
+ desc->extended_source = nla_get_hwaddr(info->attrs[IEEE802154_ATTR_LLSEC_KEY_SOURCE_EXTENDED]);
+ break;
+ }
+
+ return 0;
+}
+
+static int
+ieee802154_llsec_fill_key_id(struct sk_buff *msg,
+ const struct ieee802154_llsec_key_id *desc)
+{
+ if (nla_put_u8(msg, IEEE802154_ATTR_LLSEC_KEY_MODE, desc->mode))
+ return -EMSGSIZE;
+
+ if (desc->mode == IEEE802154_SCF_KEY_IMPLICIT) {
+ if (nla_put_shortaddr(msg, IEEE802154_ATTR_PAN_ID,
+ desc->device_addr.pan_id))
+ return -EMSGSIZE;
+
+ if (desc->device_addr.mode == IEEE802154_ADDR_SHORT &&
+ nla_put_shortaddr(msg, IEEE802154_ATTR_SHORT_ADDR,
+ desc->device_addr.short_addr))
+ return -EMSGSIZE;
+
+ if (desc->device_addr.mode == IEEE802154_ADDR_LONG &&
+ nla_put_hwaddr(msg, IEEE802154_ATTR_HW_ADDR,
+ desc->device_addr.extended_addr,
+ IEEE802154_ATTR_PAD))
+ return -EMSGSIZE;
+ }
+
+ if (desc->mode != IEEE802154_SCF_KEY_IMPLICIT &&
+ nla_put_u8(msg, IEEE802154_ATTR_LLSEC_KEY_ID, desc->id))
+ return -EMSGSIZE;
+
+ if (desc->mode == IEEE802154_SCF_KEY_SHORT_INDEX &&
+ nla_put_u32(msg, IEEE802154_ATTR_LLSEC_KEY_SOURCE_SHORT,
+ le32_to_cpu(desc->short_source)))
+ return -EMSGSIZE;
+
+ if (desc->mode == IEEE802154_SCF_KEY_HW_INDEX &&
+ nla_put_hwaddr(msg, IEEE802154_ATTR_LLSEC_KEY_SOURCE_EXTENDED,
+ desc->extended_source, IEEE802154_ATTR_PAD))
+ return -EMSGSIZE;
+
+ return 0;
+}
+
+int ieee802154_llsec_getparams(struct sk_buff *skb, struct genl_info *info)
+{
+ struct sk_buff *msg;
+ struct net_device *dev = NULL;
+ int rc = -ENOBUFS;
+ struct ieee802154_mlme_ops *ops;
+ void *hdr;
+ struct ieee802154_llsec_params params;
+
+ pr_debug("%s\n", __func__);
+
+ dev = ieee802154_nl_get_dev(info);
+ if (!dev)
+ return -ENODEV;
+
+ ops = ieee802154_mlme_ops(dev);
+ if (!ops->llsec) {
+ rc = -EOPNOTSUPP;
+ goto out_dev;
+ }
+
+ msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
+ if (!msg)
+ goto out_dev;
+
+ hdr = genlmsg_put(msg, 0, info->snd_seq, &nl802154_family, 0,
+ IEEE802154_LLSEC_GETPARAMS);
+ if (!hdr)
+ goto out_free;
+
+ rc = ops->llsec->get_params(dev, &params);
+ if (rc < 0)
+ goto out_free;
+
+ if (nla_put_string(msg, IEEE802154_ATTR_DEV_NAME, dev->name) ||
+ nla_put_u32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex) ||
+ nla_put_u8(msg, IEEE802154_ATTR_LLSEC_ENABLED, params.enabled) ||
+ nla_put_u8(msg, IEEE802154_ATTR_LLSEC_SECLEVEL, params.out_level) ||
+ nla_put_u32(msg, IEEE802154_ATTR_LLSEC_FRAME_COUNTER,
+ be32_to_cpu(params.frame_counter)) ||
+ ieee802154_llsec_fill_key_id(msg, &params.out_key)) {
+ rc = -ENOBUFS;
+ goto out_free;
+ }
+
+ dev_put(dev);
+
+ return ieee802154_nl_reply(msg, info);
+out_free:
+ nlmsg_free(msg);
+out_dev:
+ dev_put(dev);
+ return rc;
+}
+
+int ieee802154_llsec_setparams(struct sk_buff *skb, struct genl_info *info)
+{
+ struct net_device *dev = NULL;
+ int rc = -EINVAL;
+ struct ieee802154_mlme_ops *ops;
+ struct ieee802154_llsec_params params;
+ int changed = 0;
+
+ pr_debug("%s\n", __func__);
+
+ dev = ieee802154_nl_get_dev(info);
+ if (!dev)
+ return -ENODEV;
+
+ if (!info->attrs[IEEE802154_ATTR_LLSEC_ENABLED] &&
+ !info->attrs[IEEE802154_ATTR_LLSEC_KEY_MODE] &&
+ !info->attrs[IEEE802154_ATTR_LLSEC_SECLEVEL])
+ goto out;
+
+ ops = ieee802154_mlme_ops(dev);
+ if (!ops->llsec) {
+ rc = -EOPNOTSUPP;
+ goto out;
+ }
+
+ if (info->attrs[IEEE802154_ATTR_LLSEC_SECLEVEL] &&
+ nla_get_u8(info->attrs[IEEE802154_ATTR_LLSEC_SECLEVEL]) > 7)
+ goto out;
+
+ if (info->attrs[IEEE802154_ATTR_LLSEC_ENABLED]) {
+ params.enabled = nla_get_u8(info->attrs[IEEE802154_ATTR_LLSEC_ENABLED]);
+ changed |= IEEE802154_LLSEC_PARAM_ENABLED;
+ }
+
+ if (info->attrs[IEEE802154_ATTR_LLSEC_KEY_MODE]) {
+ if (ieee802154_llsec_parse_key_id(info, &params.out_key))
+ goto out;
+
+ changed |= IEEE802154_LLSEC_PARAM_OUT_KEY;
+ }
+
+ if (info->attrs[IEEE802154_ATTR_LLSEC_SECLEVEL]) {
+ params.out_level = nla_get_u8(info->attrs[IEEE802154_ATTR_LLSEC_SECLEVEL]);
+ changed |= IEEE802154_LLSEC_PARAM_OUT_LEVEL;
+ }
+
+ if (info->attrs[IEEE802154_ATTR_LLSEC_FRAME_COUNTER]) {
+ u32 fc = nla_get_u32(info->attrs[IEEE802154_ATTR_LLSEC_FRAME_COUNTER]);
+
+ params.frame_counter = cpu_to_be32(fc);
+ changed |= IEEE802154_LLSEC_PARAM_FRAME_COUNTER;
+ }
+
+ rc = ops->llsec->set_params(dev, &params, changed);
+
+ dev_put(dev);
+
+ return rc;
+out:
+ dev_put(dev);
+ return rc;
+}
+
+struct llsec_dump_data {
+ struct sk_buff *skb;
+ int s_idx, s_idx2;
+ int portid;
+ int nlmsg_seq;
+ struct net_device *dev;
+ struct ieee802154_mlme_ops *ops;
+ struct ieee802154_llsec_table *table;
+};
+
+static int
+ieee802154_llsec_dump_table(struct sk_buff *skb, struct netlink_callback *cb,
+ int (*step)(struct llsec_dump_data *))
+{
+ struct net *net = sock_net(skb->sk);
+ struct net_device *dev;
+ struct llsec_dump_data data;
+ int idx = 0;
+ int first_dev = cb->args[0];
+ int rc;
+
+ for_each_netdev(net, dev) {
+ if (idx < first_dev || dev->type != ARPHRD_IEEE802154)
+ goto skip;
+
+ data.ops = ieee802154_mlme_ops(dev);
+ if (!data.ops->llsec)
+ goto skip;
+
+ data.skb = skb;
+ data.s_idx = cb->args[1];
+ data.s_idx2 = cb->args[2];
+ data.dev = dev;
+ data.portid = NETLINK_CB(cb->skb).portid;
+ data.nlmsg_seq = cb->nlh->nlmsg_seq;
+
+ data.ops->llsec->lock_table(dev);
+ data.ops->llsec->get_table(data.dev, &data.table);
+ rc = step(&data);
+ data.ops->llsec->unlock_table(dev);
+
+ if (rc < 0)
+ break;
+
+skip:
+ idx++;
+ }
+ cb->args[0] = idx;
+
+ return skb->len;
+}
+
+static int
+ieee802154_nl_llsec_change(struct sk_buff *skb, struct genl_info *info,
+ int (*fn)(struct net_device*, struct genl_info*))
+{
+ struct net_device *dev = NULL;
+ int rc = -EINVAL;
+
+ dev = ieee802154_nl_get_dev(info);
+ if (!dev)
+ return -ENODEV;
+
+ if (!ieee802154_mlme_ops(dev)->llsec)
+ rc = -EOPNOTSUPP;
+ else
+ rc = fn(dev, info);
+
+ dev_put(dev);
+ return rc;
+}
+
+static int
+ieee802154_llsec_parse_key(struct genl_info *info,
+ struct ieee802154_llsec_key *key)
+{
+ u8 frames;
+ u32 commands[256 / 32];
+
+ memset(key, 0, sizeof(*key));
+
+ if (!info->attrs[IEEE802154_ATTR_LLSEC_KEY_USAGE_FRAME_TYPES] ||
+ !info->attrs[IEEE802154_ATTR_LLSEC_KEY_BYTES])
+ return -EINVAL;
+
+ frames = nla_get_u8(info->attrs[IEEE802154_ATTR_LLSEC_KEY_USAGE_FRAME_TYPES]);
+ if ((frames & BIT(IEEE802154_FC_TYPE_MAC_CMD)) &&
+ !info->attrs[IEEE802154_ATTR_LLSEC_KEY_USAGE_COMMANDS])
+ return -EINVAL;
+
+ if (info->attrs[IEEE802154_ATTR_LLSEC_KEY_USAGE_COMMANDS]) {
+ nla_memcpy(commands,
+ info->attrs[IEEE802154_ATTR_LLSEC_KEY_USAGE_COMMANDS],
+ 256 / 8);
+
+ if (commands[0] || commands[1] || commands[2] || commands[3] ||
+ commands[4] || commands[5] || commands[6] ||
+ commands[7] >= BIT(IEEE802154_CMD_GTS_REQ + 1))
+ return -EINVAL;
+
+ key->cmd_frame_ids = commands[7];
+ }
+
+ key->frame_types = frames;
+
+ nla_memcpy(key->key, info->attrs[IEEE802154_ATTR_LLSEC_KEY_BYTES],
+ IEEE802154_LLSEC_KEY_SIZE);
+
+ return 0;
+}
+
+static int llsec_add_key(struct net_device *dev, struct genl_info *info)
+{
+ struct ieee802154_mlme_ops *ops = ieee802154_mlme_ops(dev);
+ struct ieee802154_llsec_key key;
+ struct ieee802154_llsec_key_id id;
+
+ if (ieee802154_llsec_parse_key(info, &key) ||
+ ieee802154_llsec_parse_key_id(info, &id))
+ return -EINVAL;
+
+ return ops->llsec->add_key(dev, &id, &key);
+}
+
+int ieee802154_llsec_add_key(struct sk_buff *skb, struct genl_info *info)
+{
+ if ((info->nlhdr->nlmsg_flags & (NLM_F_CREATE | NLM_F_EXCL)) !=
+ (NLM_F_CREATE | NLM_F_EXCL))
+ return -EINVAL;
+
+ return ieee802154_nl_llsec_change(skb, info, llsec_add_key);
+}
+
+static int llsec_remove_key(struct net_device *dev, struct genl_info *info)
+{
+ struct ieee802154_mlme_ops *ops = ieee802154_mlme_ops(dev);
+ struct ieee802154_llsec_key_id id;
+
+ if (ieee802154_llsec_parse_key_id(info, &id))
+ return -EINVAL;
+
+ return ops->llsec->del_key(dev, &id);
+}
+
+int ieee802154_llsec_del_key(struct sk_buff *skb, struct genl_info *info)
+{
+ return ieee802154_nl_llsec_change(skb, info, llsec_remove_key);
+}
+
+static int
+ieee802154_nl_fill_key(struct sk_buff *msg, u32 portid, u32 seq,
+ const struct ieee802154_llsec_key_entry *key,
+ const struct net_device *dev)
+{
+ void *hdr;
+ u32 commands[256 / 32];
+
+ hdr = genlmsg_put(msg, 0, seq, &nl802154_family, NLM_F_MULTI,
+ IEEE802154_LLSEC_LIST_KEY);
+ if (!hdr)
+ goto out;
+
+ if (nla_put_string(msg, IEEE802154_ATTR_DEV_NAME, dev->name) ||
+ nla_put_u32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex) ||
+ ieee802154_llsec_fill_key_id(msg, &key->id) ||
+ nla_put_u8(msg, IEEE802154_ATTR_LLSEC_KEY_USAGE_FRAME_TYPES,
+ key->key->frame_types))
+ goto nla_put_failure;
+
+ if (key->key->frame_types & BIT(IEEE802154_FC_TYPE_MAC_CMD)) {
+ memset(commands, 0, sizeof(commands));
+ commands[7] = key->key->cmd_frame_ids;
+ if (nla_put(msg, IEEE802154_ATTR_LLSEC_KEY_USAGE_COMMANDS,
+ sizeof(commands), commands))
+ goto nla_put_failure;
+ }
+
+ if (nla_put(msg, IEEE802154_ATTR_LLSEC_KEY_BYTES,
+ IEEE802154_LLSEC_KEY_SIZE, key->key->key))
+ goto nla_put_failure;
+
+ genlmsg_end(msg, hdr);
+ return 0;
+
+nla_put_failure:
+ genlmsg_cancel(msg, hdr);
+out:
+ return -EMSGSIZE;
+}
+
+static int llsec_iter_keys(struct llsec_dump_data *data)
+{
+ struct ieee802154_llsec_key_entry *pos;
+ int rc = 0, idx = 0;
+
+ list_for_each_entry(pos, &data->table->keys, list) {
+ if (idx++ < data->s_idx)
+ continue;
+
+ if (ieee802154_nl_fill_key(data->skb, data->portid,
+ data->nlmsg_seq, pos, data->dev)) {
+ rc = -EMSGSIZE;
+ break;
+ }
+
+ data->s_idx++;
+ }
+
+ return rc;
+}
+
+int ieee802154_llsec_dump_keys(struct sk_buff *skb, struct netlink_callback *cb)
+{
+ return ieee802154_llsec_dump_table(skb, cb, llsec_iter_keys);
+}
+
+static int
+llsec_parse_dev(struct genl_info *info,
+ struct ieee802154_llsec_device *dev)
+{
+ memset(dev, 0, sizeof(*dev));
+
+ if (!info->attrs[IEEE802154_ATTR_LLSEC_FRAME_COUNTER] ||
+ !info->attrs[IEEE802154_ATTR_HW_ADDR] ||
+ !info->attrs[IEEE802154_ATTR_LLSEC_DEV_OVERRIDE] ||
+ !info->attrs[IEEE802154_ATTR_LLSEC_DEV_KEY_MODE] ||
+ (!!info->attrs[IEEE802154_ATTR_PAN_ID] !=
+ !!info->attrs[IEEE802154_ATTR_SHORT_ADDR]))
+ return -EINVAL;
+
+ if (info->attrs[IEEE802154_ATTR_PAN_ID]) {
+ dev->pan_id = nla_get_shortaddr(info->attrs[IEEE802154_ATTR_PAN_ID]);
+ dev->short_addr = nla_get_shortaddr(info->attrs[IEEE802154_ATTR_SHORT_ADDR]);
+ } else {
+ dev->short_addr = cpu_to_le16(IEEE802154_ADDR_UNDEF);
+ }
+
+ dev->hwaddr = nla_get_hwaddr(info->attrs[IEEE802154_ATTR_HW_ADDR]);
+ dev->frame_counter = nla_get_u32(info->attrs[IEEE802154_ATTR_LLSEC_FRAME_COUNTER]);
+ dev->seclevel_exempt = !!nla_get_u8(info->attrs[IEEE802154_ATTR_LLSEC_DEV_OVERRIDE]);
+ dev->key_mode = nla_get_u8(info->attrs[IEEE802154_ATTR_LLSEC_DEV_KEY_MODE]);
+
+ if (dev->key_mode >= __IEEE802154_LLSEC_DEVKEY_MAX)
+ return -EINVAL;
+
+ return 0;
+}
+
+static int llsec_add_dev(struct net_device *dev, struct genl_info *info)
+{
+ struct ieee802154_mlme_ops *ops = ieee802154_mlme_ops(dev);
+ struct ieee802154_llsec_device desc;
+
+ if (llsec_parse_dev(info, &desc))
+ return -EINVAL;
+
+ return ops->llsec->add_dev(dev, &desc);
+}
+
+int ieee802154_llsec_add_dev(struct sk_buff *skb, struct genl_info *info)
+{
+ if ((info->nlhdr->nlmsg_flags & (NLM_F_CREATE | NLM_F_EXCL)) !=
+ (NLM_F_CREATE | NLM_F_EXCL))
+ return -EINVAL;
+
+ return ieee802154_nl_llsec_change(skb, info, llsec_add_dev);
+}
+
+static int llsec_del_dev(struct net_device *dev, struct genl_info *info)
+{
+ struct ieee802154_mlme_ops *ops = ieee802154_mlme_ops(dev);
+ __le64 devaddr;
+
+ if (!info->attrs[IEEE802154_ATTR_HW_ADDR])
+ return -EINVAL;
+
+ devaddr = nla_get_hwaddr(info->attrs[IEEE802154_ATTR_HW_ADDR]);
+
+ return ops->llsec->del_dev(dev, devaddr);
+}
+
+int ieee802154_llsec_del_dev(struct sk_buff *skb, struct genl_info *info)
+{
+ return ieee802154_nl_llsec_change(skb, info, llsec_del_dev);
+}
+
+static int
+ieee802154_nl_fill_dev(struct sk_buff *msg, u32 portid, u32 seq,
+ const struct ieee802154_llsec_device *desc,
+ const struct net_device *dev)
+{
+ void *hdr;
+
+ hdr = genlmsg_put(msg, 0, seq, &nl802154_family, NLM_F_MULTI,
+ IEEE802154_LLSEC_LIST_DEV);
+ if (!hdr)
+ goto out;
+
+ if (nla_put_string(msg, IEEE802154_ATTR_DEV_NAME, dev->name) ||
+ nla_put_u32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex) ||
+ nla_put_shortaddr(msg, IEEE802154_ATTR_PAN_ID, desc->pan_id) ||
+ nla_put_shortaddr(msg, IEEE802154_ATTR_SHORT_ADDR,
+ desc->short_addr) ||
+ nla_put_hwaddr(msg, IEEE802154_ATTR_HW_ADDR, desc->hwaddr,
+ IEEE802154_ATTR_PAD) ||
+ nla_put_u32(msg, IEEE802154_ATTR_LLSEC_FRAME_COUNTER,
+ desc->frame_counter) ||
+ nla_put_u8(msg, IEEE802154_ATTR_LLSEC_DEV_OVERRIDE,
+ desc->seclevel_exempt) ||
+ nla_put_u8(msg, IEEE802154_ATTR_LLSEC_DEV_KEY_MODE, desc->key_mode))
+ goto nla_put_failure;
+
+ genlmsg_end(msg, hdr);
+ return 0;
+
+nla_put_failure:
+ genlmsg_cancel(msg, hdr);
+out:
+ return -EMSGSIZE;
+}
+
+static int llsec_iter_devs(struct llsec_dump_data *data)
+{
+ struct ieee802154_llsec_device *pos;
+ int rc = 0, idx = 0;
+
+ list_for_each_entry(pos, &data->table->devices, list) {
+ if (idx++ < data->s_idx)
+ continue;
+
+ if (ieee802154_nl_fill_dev(data->skb, data->portid,
+ data->nlmsg_seq, pos, data->dev)) {
+ rc = -EMSGSIZE;
+ break;
+ }
+
+ data->s_idx++;
+ }
+
+ return rc;
+}
+
+int ieee802154_llsec_dump_devs(struct sk_buff *skb, struct netlink_callback *cb)
+{
+ return ieee802154_llsec_dump_table(skb, cb, llsec_iter_devs);
+}
+
+static int llsec_add_devkey(struct net_device *dev, struct genl_info *info)
+{
+ struct ieee802154_mlme_ops *ops = ieee802154_mlme_ops(dev);
+ struct ieee802154_llsec_device_key key;
+ __le64 devaddr;
+
+ if (!info->attrs[IEEE802154_ATTR_LLSEC_FRAME_COUNTER] ||
+ !info->attrs[IEEE802154_ATTR_HW_ADDR] ||
+ ieee802154_llsec_parse_key_id(info, &key.key_id))
+ return -EINVAL;
+
+ devaddr = nla_get_hwaddr(info->attrs[IEEE802154_ATTR_HW_ADDR]);
+ key.frame_counter = nla_get_u32(info->attrs[IEEE802154_ATTR_LLSEC_FRAME_COUNTER]);
+
+ return ops->llsec->add_devkey(dev, devaddr, &key);
+}
+
+int ieee802154_llsec_add_devkey(struct sk_buff *skb, struct genl_info *info)
+{
+ if ((info->nlhdr->nlmsg_flags & (NLM_F_CREATE | NLM_F_EXCL)) !=
+ (NLM_F_CREATE | NLM_F_EXCL))
+ return -EINVAL;
+
+ return ieee802154_nl_llsec_change(skb, info, llsec_add_devkey);
+}
+
+static int llsec_del_devkey(struct net_device *dev, struct genl_info *info)
+{
+ struct ieee802154_mlme_ops *ops = ieee802154_mlme_ops(dev);
+ struct ieee802154_llsec_device_key key;
+ __le64 devaddr;
+
+ if (!info->attrs[IEEE802154_ATTR_HW_ADDR] ||
+ ieee802154_llsec_parse_key_id(info, &key.key_id))
+ return -EINVAL;
+
+ devaddr = nla_get_hwaddr(info->attrs[IEEE802154_ATTR_HW_ADDR]);
+
+ return ops->llsec->del_devkey(dev, devaddr, &key);
+}
+
+int ieee802154_llsec_del_devkey(struct sk_buff *skb, struct genl_info *info)
+{
+ return ieee802154_nl_llsec_change(skb, info, llsec_del_devkey);
+}
+
+static int
+ieee802154_nl_fill_devkey(struct sk_buff *msg, u32 portid, u32 seq,
+ __le64 devaddr,
+ const struct ieee802154_llsec_device_key *devkey,
+ const struct net_device *dev)
+{
+ void *hdr;
+
+ hdr = genlmsg_put(msg, 0, seq, &nl802154_family, NLM_F_MULTI,
+ IEEE802154_LLSEC_LIST_DEVKEY);
+ if (!hdr)
+ goto out;
+
+ if (nla_put_string(msg, IEEE802154_ATTR_DEV_NAME, dev->name) ||
+ nla_put_u32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex) ||
+ nla_put_hwaddr(msg, IEEE802154_ATTR_HW_ADDR, devaddr,
+ IEEE802154_ATTR_PAD) ||
+ nla_put_u32(msg, IEEE802154_ATTR_LLSEC_FRAME_COUNTER,
+ devkey->frame_counter) ||
+ ieee802154_llsec_fill_key_id(msg, &devkey->key_id))
+ goto nla_put_failure;
+
+ genlmsg_end(msg, hdr);
+ return 0;
+
+nla_put_failure:
+ genlmsg_cancel(msg, hdr);
+out:
+ return -EMSGSIZE;
+}
+
+static int llsec_iter_devkeys(struct llsec_dump_data *data)
+{
+ struct ieee802154_llsec_device *dpos;
+ struct ieee802154_llsec_device_key *kpos;
+ int idx = 0, idx2;
+
+ list_for_each_entry(dpos, &data->table->devices, list) {
+ if (idx++ < data->s_idx)
+ continue;
+
+ idx2 = 0;
+
+ list_for_each_entry(kpos, &dpos->keys, list) {
+ if (idx2++ < data->s_idx2)
+ continue;
+
+ if (ieee802154_nl_fill_devkey(data->skb, data->portid,
+ data->nlmsg_seq,
+ dpos->hwaddr, kpos,
+ data->dev)) {
+ return -EMSGSIZE;
+ }
+
+ data->s_idx2++;
+ }
+
+ data->s_idx++;
+ }
+
+ return 0;
+}
+
+int ieee802154_llsec_dump_devkeys(struct sk_buff *skb,
+ struct netlink_callback *cb)
+{
+ return ieee802154_llsec_dump_table(skb, cb, llsec_iter_devkeys);
+}
+
+static int
+llsec_parse_seclevel(struct genl_info *info,
+ struct ieee802154_llsec_seclevel *sl)
+{
+ memset(sl, 0, sizeof(*sl));
+
+ if (!info->attrs[IEEE802154_ATTR_LLSEC_FRAME_TYPE] ||
+ !info->attrs[IEEE802154_ATTR_LLSEC_SECLEVELS] ||
+ !info->attrs[IEEE802154_ATTR_LLSEC_DEV_OVERRIDE])
+ return -EINVAL;
+
+ sl->frame_type = nla_get_u8(info->attrs[IEEE802154_ATTR_LLSEC_FRAME_TYPE]);
+ if (sl->frame_type == IEEE802154_FC_TYPE_MAC_CMD) {
+ if (!info->attrs[IEEE802154_ATTR_LLSEC_CMD_FRAME_ID])
+ return -EINVAL;
+
+ sl->cmd_frame_id = nla_get_u8(info->attrs[IEEE802154_ATTR_LLSEC_CMD_FRAME_ID]);
+ }
+
+ sl->sec_levels = nla_get_u8(info->attrs[IEEE802154_ATTR_LLSEC_SECLEVELS]);
+ sl->device_override = nla_get_u8(info->attrs[IEEE802154_ATTR_LLSEC_DEV_OVERRIDE]);
+
+ return 0;
+}
+
+static int llsec_add_seclevel(struct net_device *dev, struct genl_info *info)
+{
+ struct ieee802154_mlme_ops *ops = ieee802154_mlme_ops(dev);
+ struct ieee802154_llsec_seclevel sl;
+
+ if (llsec_parse_seclevel(info, &sl))
+ return -EINVAL;
+
+ return ops->llsec->add_seclevel(dev, &sl);
+}
+
+int ieee802154_llsec_add_seclevel(struct sk_buff *skb, struct genl_info *info)
+{
+ if ((info->nlhdr->nlmsg_flags & (NLM_F_CREATE | NLM_F_EXCL)) !=
+ (NLM_F_CREATE | NLM_F_EXCL))
+ return -EINVAL;
+
+ return ieee802154_nl_llsec_change(skb, info, llsec_add_seclevel);
+}
+
+static int llsec_del_seclevel(struct net_device *dev, struct genl_info *info)
+{
+ struct ieee802154_mlme_ops *ops = ieee802154_mlme_ops(dev);
+ struct ieee802154_llsec_seclevel sl;
+
+ if (llsec_parse_seclevel(info, &sl))
+ return -EINVAL;
+
+ return ops->llsec->del_seclevel(dev, &sl);
+}
+
+int ieee802154_llsec_del_seclevel(struct sk_buff *skb, struct genl_info *info)
+{
+ return ieee802154_nl_llsec_change(skb, info, llsec_del_seclevel);
+}
+
+static int
+ieee802154_nl_fill_seclevel(struct sk_buff *msg, u32 portid, u32 seq,
+ const struct ieee802154_llsec_seclevel *sl,
+ const struct net_device *dev)
+{
+ void *hdr;
+
+ hdr = genlmsg_put(msg, 0, seq, &nl802154_family, NLM_F_MULTI,
+ IEEE802154_LLSEC_LIST_SECLEVEL);
+ if (!hdr)
+ goto out;
+
+ if (nla_put_string(msg, IEEE802154_ATTR_DEV_NAME, dev->name) ||
+ nla_put_u32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex) ||
+ nla_put_u8(msg, IEEE802154_ATTR_LLSEC_FRAME_TYPE, sl->frame_type) ||
+ nla_put_u8(msg, IEEE802154_ATTR_LLSEC_SECLEVELS, sl->sec_levels) ||
+ nla_put_u8(msg, IEEE802154_ATTR_LLSEC_DEV_OVERRIDE,
+ sl->device_override))
+ goto nla_put_failure;
+
+ if (sl->frame_type == IEEE802154_FC_TYPE_MAC_CMD &&
+ nla_put_u8(msg, IEEE802154_ATTR_LLSEC_CMD_FRAME_ID,
+ sl->cmd_frame_id))
+ goto nla_put_failure;
+
+ genlmsg_end(msg, hdr);
+ return 0;
+
+nla_put_failure:
+ genlmsg_cancel(msg, hdr);
+out:
+ return -EMSGSIZE;
+}
+
+static int llsec_iter_seclevels(struct llsec_dump_data *data)
+{
+ struct ieee802154_llsec_seclevel *pos;
+ int rc = 0, idx = 0;
+
+ list_for_each_entry(pos, &data->table->security_levels, list) {
+ if (idx++ < data->s_idx)
+ continue;
+
+ if (ieee802154_nl_fill_seclevel(data->skb, data->portid,
+ data->nlmsg_seq, pos,
+ data->dev)) {
+ rc = -EMSGSIZE;
+ break;
+ }
+
+ data->s_idx++;
+ }
+
+ return rc;
+}
+
+int ieee802154_llsec_dump_seclevels(struct sk_buff *skb,
+ struct netlink_callback *cb)
+{
+ return ieee802154_llsec_dump_table(skb, cb, llsec_iter_seclevels);
+}
diff --git a/net/ieee802154/nl-phy.c b/net/ieee802154/nl-phy.c
new file mode 100644
index 000000000..359249ab7
--- /dev/null
+++ b/net/ieee802154/nl-phy.c
@@ -0,0 +1,346 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Netlink interface for IEEE 802.15.4 stack
+ *
+ * Copyright 2007, 2008 Siemens AG
+ *
+ * Written by:
+ * Sergey Lapin <slapin@ossfans.org>
+ * Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
+ * Maxim Osipov <maxim.osipov@siemens.com>
+ */
+
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/if_arp.h>
+#include <net/netlink.h>
+#include <net/genetlink.h>
+#include <net/cfg802154.h>
+#include <net/af_ieee802154.h>
+#include <net/ieee802154_netdev.h>
+#include <net/rtnetlink.h> /* for rtnl_{un,}lock */
+#include <linux/nl802154.h>
+
+#include "ieee802154.h"
+#include "rdev-ops.h"
+#include "core.h"
+
+static int ieee802154_nl_fill_phy(struct sk_buff *msg, u32 portid,
+ u32 seq, int flags, struct wpan_phy *phy)
+{
+ void *hdr;
+ int i, pages = 0;
+ u32 *buf = kcalloc(IEEE802154_MAX_PAGE + 1, sizeof(u32), GFP_KERNEL);
+
+ pr_debug("%s\n", __func__);
+
+ if (!buf)
+ return -EMSGSIZE;
+
+ hdr = genlmsg_put(msg, 0, seq, &nl802154_family, flags,
+ IEEE802154_LIST_PHY);
+ if (!hdr)
+ goto out;
+
+ rtnl_lock();
+ if (nla_put_string(msg, IEEE802154_ATTR_PHY_NAME, wpan_phy_name(phy)) ||
+ nla_put_u8(msg, IEEE802154_ATTR_PAGE, phy->current_page) ||
+ nla_put_u8(msg, IEEE802154_ATTR_CHANNEL, phy->current_channel))
+ goto nla_put_failure;
+ for (i = 0; i <= IEEE802154_MAX_PAGE; i++) {
+ if (phy->supported.channels[i])
+ buf[pages++] = phy->supported.channels[i] | (i << 27);
+ }
+ if (pages &&
+ nla_put(msg, IEEE802154_ATTR_CHANNEL_PAGE_LIST,
+ pages * sizeof(uint32_t), buf))
+ goto nla_put_failure;
+ rtnl_unlock();
+ kfree(buf);
+ genlmsg_end(msg, hdr);
+ return 0;
+
+nla_put_failure:
+ rtnl_unlock();
+ genlmsg_cancel(msg, hdr);
+out:
+ kfree(buf);
+ return -EMSGSIZE;
+}
+
+int ieee802154_list_phy(struct sk_buff *skb, struct genl_info *info)
+{
+ /* Request for interface name, index, type, IEEE address,
+ * PAN Id, short address
+ */
+ struct sk_buff *msg;
+ struct wpan_phy *phy;
+ const char *name;
+ int rc = -ENOBUFS;
+
+ pr_debug("%s\n", __func__);
+
+ if (!info->attrs[IEEE802154_ATTR_PHY_NAME])
+ return -EINVAL;
+
+ name = nla_data(info->attrs[IEEE802154_ATTR_PHY_NAME]);
+ if (name[nla_len(info->attrs[IEEE802154_ATTR_PHY_NAME]) - 1] != '\0')
+ return -EINVAL; /* phy name should be null-terminated */
+
+ phy = wpan_phy_find(name);
+ if (!phy)
+ return -ENODEV;
+
+ msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
+ if (!msg)
+ goto out_dev;
+
+ rc = ieee802154_nl_fill_phy(msg, info->snd_portid, info->snd_seq,
+ 0, phy);
+ if (rc < 0)
+ goto out_free;
+
+ wpan_phy_put(phy);
+
+ return genlmsg_reply(msg, info);
+out_free:
+ nlmsg_free(msg);
+out_dev:
+ wpan_phy_put(phy);
+ return rc;
+}
+
+struct dump_phy_data {
+ struct sk_buff *skb;
+ struct netlink_callback *cb;
+ int idx, s_idx;
+};
+
+static int ieee802154_dump_phy_iter(struct wpan_phy *phy, void *_data)
+{
+ int rc;
+ struct dump_phy_data *data = _data;
+
+ pr_debug("%s\n", __func__);
+
+ if (data->idx++ < data->s_idx)
+ return 0;
+
+ rc = ieee802154_nl_fill_phy(data->skb,
+ NETLINK_CB(data->cb->skb).portid,
+ data->cb->nlh->nlmsg_seq,
+ NLM_F_MULTI,
+ phy);
+
+ if (rc < 0) {
+ data->idx--;
+ return rc;
+ }
+
+ return 0;
+}
+
+int ieee802154_dump_phy(struct sk_buff *skb, struct netlink_callback *cb)
+{
+ struct dump_phy_data data = {
+ .cb = cb,
+ .skb = skb,
+ .s_idx = cb->args[0],
+ .idx = 0,
+ };
+
+ pr_debug("%s\n", __func__);
+
+ wpan_phy_for_each(ieee802154_dump_phy_iter, &data);
+
+ cb->args[0] = data.idx;
+
+ return skb->len;
+}
+
+int ieee802154_add_iface(struct sk_buff *skb, struct genl_info *info)
+{
+ struct sk_buff *msg;
+ struct wpan_phy *phy;
+ const char *name;
+ const char *devname;
+ int rc = -ENOBUFS;
+ struct net_device *dev;
+ int type = __IEEE802154_DEV_INVALID;
+ unsigned char name_assign_type;
+
+ pr_debug("%s\n", __func__);
+
+ if (!info->attrs[IEEE802154_ATTR_PHY_NAME])
+ return -EINVAL;
+
+ name = nla_data(info->attrs[IEEE802154_ATTR_PHY_NAME]);
+ if (name[nla_len(info->attrs[IEEE802154_ATTR_PHY_NAME]) - 1] != '\0')
+ return -EINVAL; /* phy name should be null-terminated */
+
+ if (info->attrs[IEEE802154_ATTR_DEV_NAME]) {
+ devname = nla_data(info->attrs[IEEE802154_ATTR_DEV_NAME]);
+ if (devname[nla_len(info->attrs[IEEE802154_ATTR_DEV_NAME]) - 1]
+ != '\0')
+ return -EINVAL; /* phy name should be null-terminated */
+ name_assign_type = NET_NAME_USER;
+ } else {
+ devname = "wpan%d";
+ name_assign_type = NET_NAME_ENUM;
+ }
+
+ if (strlen(devname) >= IFNAMSIZ)
+ return -ENAMETOOLONG;
+
+ phy = wpan_phy_find(name);
+ if (!phy)
+ return -ENODEV;
+
+ msg = ieee802154_nl_new_reply(info, 0, IEEE802154_ADD_IFACE);
+ if (!msg)
+ goto out_dev;
+
+ if (info->attrs[IEEE802154_ATTR_HW_ADDR] &&
+ nla_len(info->attrs[IEEE802154_ATTR_HW_ADDR]) !=
+ IEEE802154_ADDR_LEN) {
+ rc = -EINVAL;
+ goto nla_put_failure;
+ }
+
+ if (info->attrs[IEEE802154_ATTR_DEV_TYPE]) {
+ type = nla_get_u8(info->attrs[IEEE802154_ATTR_DEV_TYPE]);
+ if (type >= __IEEE802154_DEV_MAX) {
+ rc = -EINVAL;
+ goto nla_put_failure;
+ }
+ }
+
+ dev = rdev_add_virtual_intf_deprecated(wpan_phy_to_rdev(phy), devname,
+ name_assign_type, type);
+ if (IS_ERR(dev)) {
+ rc = PTR_ERR(dev);
+ goto nla_put_failure;
+ }
+ dev_hold(dev);
+
+ if (info->attrs[IEEE802154_ATTR_HW_ADDR]) {
+ struct sockaddr addr;
+
+ addr.sa_family = ARPHRD_IEEE802154;
+ nla_memcpy(&addr.sa_data, info->attrs[IEEE802154_ATTR_HW_ADDR],
+ IEEE802154_ADDR_LEN);
+
+ /* strangely enough, some callbacks (inetdev_event) from
+ * dev_set_mac_address require RTNL_LOCK
+ */
+ rtnl_lock();
+ rc = dev_set_mac_address(dev, &addr, NULL);
+ rtnl_unlock();
+ if (rc)
+ goto dev_unregister;
+ }
+
+ if (nla_put_string(msg, IEEE802154_ATTR_PHY_NAME, wpan_phy_name(phy)) ||
+ nla_put_string(msg, IEEE802154_ATTR_DEV_NAME, dev->name)) {
+ rc = -EMSGSIZE;
+ goto nla_put_failure;
+ }
+ dev_put(dev);
+
+ wpan_phy_put(phy);
+
+ return ieee802154_nl_reply(msg, info);
+
+dev_unregister:
+ rtnl_lock(); /* del_iface must be called with RTNL lock */
+ rdev_del_virtual_intf_deprecated(wpan_phy_to_rdev(phy), dev);
+ dev_put(dev);
+ rtnl_unlock();
+nla_put_failure:
+ nlmsg_free(msg);
+out_dev:
+ wpan_phy_put(phy);
+ return rc;
+}
+
+int ieee802154_del_iface(struct sk_buff *skb, struct genl_info *info)
+{
+ struct sk_buff *msg;
+ struct wpan_phy *phy;
+ const char *name;
+ int rc;
+ struct net_device *dev;
+
+ pr_debug("%s\n", __func__);
+
+ if (!info->attrs[IEEE802154_ATTR_DEV_NAME])
+ return -EINVAL;
+
+ name = nla_data(info->attrs[IEEE802154_ATTR_DEV_NAME]);
+ if (name[nla_len(info->attrs[IEEE802154_ATTR_DEV_NAME]) - 1] != '\0')
+ return -EINVAL; /* name should be null-terminated */
+
+ rc = -ENODEV;
+ dev = dev_get_by_name(genl_info_net(info), name);
+ if (!dev)
+ return rc;
+ if (dev->type != ARPHRD_IEEE802154)
+ goto out;
+
+ phy = dev->ieee802154_ptr->wpan_phy;
+ BUG_ON(!phy);
+ get_device(&phy->dev);
+
+ rc = -EINVAL;
+ /* phy name is optional, but should be checked if it's given */
+ if (info->attrs[IEEE802154_ATTR_PHY_NAME]) {
+ struct wpan_phy *phy2;
+
+ const char *pname =
+ nla_data(info->attrs[IEEE802154_ATTR_PHY_NAME]);
+ if (pname[nla_len(info->attrs[IEEE802154_ATTR_PHY_NAME]) - 1]
+ != '\0')
+ /* name should be null-terminated */
+ goto out_dev;
+
+ phy2 = wpan_phy_find(pname);
+ if (!phy2)
+ goto out_dev;
+
+ if (phy != phy2) {
+ wpan_phy_put(phy2);
+ goto out_dev;
+ }
+ }
+
+ rc = -ENOBUFS;
+
+ msg = ieee802154_nl_new_reply(info, 0, IEEE802154_DEL_IFACE);
+ if (!msg)
+ goto out_dev;
+
+ rtnl_lock();
+ rdev_del_virtual_intf_deprecated(wpan_phy_to_rdev(phy), dev);
+
+ /* We don't have device anymore */
+ dev_put(dev);
+ dev = NULL;
+
+ rtnl_unlock();
+
+ if (nla_put_string(msg, IEEE802154_ATTR_PHY_NAME, wpan_phy_name(phy)) ||
+ nla_put_string(msg, IEEE802154_ATTR_DEV_NAME, name))
+ goto nla_put_failure;
+ wpan_phy_put(phy);
+
+ return ieee802154_nl_reply(msg, info);
+
+nla_put_failure:
+ nlmsg_free(msg);
+out_dev:
+ wpan_phy_put(phy);
+out:
+ dev_put(dev);
+
+ return rc;
+}
diff --git a/net/ieee802154/nl802154.c b/net/ieee802154/nl802154.c
new file mode 100644
index 000000000..38c4f3cb0
--- /dev/null
+++ b/net/ieee802154/nl802154.c
@@ -0,0 +1,2517 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ *
+ * Authors:
+ * Alexander Aring <aar@pengutronix.de>
+ *
+ * Based on: net/wireless/nl80211.c
+ */
+
+#include <linux/rtnetlink.h>
+
+#include <net/cfg802154.h>
+#include <net/genetlink.h>
+#include <net/mac802154.h>
+#include <net/netlink.h>
+#include <net/nl802154.h>
+#include <net/sock.h>
+
+#include "nl802154.h"
+#include "rdev-ops.h"
+#include "core.h"
+
+/* the netlink family */
+static struct genl_family nl802154_fam;
+
+/* multicast groups */
+enum nl802154_multicast_groups {
+ NL802154_MCGRP_CONFIG,
+};
+
+static const struct genl_multicast_group nl802154_mcgrps[] = {
+ [NL802154_MCGRP_CONFIG] = { .name = "config", },
+};
+
+/* returns ERR_PTR values */
+static struct wpan_dev *
+__cfg802154_wpan_dev_from_attrs(struct net *netns, struct nlattr **attrs)
+{
+ struct cfg802154_registered_device *rdev;
+ struct wpan_dev *result = NULL;
+ bool have_ifidx = attrs[NL802154_ATTR_IFINDEX];
+ bool have_wpan_dev_id = attrs[NL802154_ATTR_WPAN_DEV];
+ u64 wpan_dev_id;
+ int wpan_phy_idx = -1;
+ int ifidx = -1;
+
+ ASSERT_RTNL();
+
+ if (!have_ifidx && !have_wpan_dev_id)
+ return ERR_PTR(-EINVAL);
+
+ if (have_ifidx)
+ ifidx = nla_get_u32(attrs[NL802154_ATTR_IFINDEX]);
+ if (have_wpan_dev_id) {
+ wpan_dev_id = nla_get_u64(attrs[NL802154_ATTR_WPAN_DEV]);
+ wpan_phy_idx = wpan_dev_id >> 32;
+ }
+
+ list_for_each_entry(rdev, &cfg802154_rdev_list, list) {
+ struct wpan_dev *wpan_dev;
+
+ if (wpan_phy_net(&rdev->wpan_phy) != netns)
+ continue;
+
+ if (have_wpan_dev_id && rdev->wpan_phy_idx != wpan_phy_idx)
+ continue;
+
+ list_for_each_entry(wpan_dev, &rdev->wpan_dev_list, list) {
+ if (have_ifidx && wpan_dev->netdev &&
+ wpan_dev->netdev->ifindex == ifidx) {
+ result = wpan_dev;
+ break;
+ }
+ if (have_wpan_dev_id &&
+ wpan_dev->identifier == (u32)wpan_dev_id) {
+ result = wpan_dev;
+ break;
+ }
+ }
+
+ if (result)
+ break;
+ }
+
+ if (result)
+ return result;
+
+ return ERR_PTR(-ENODEV);
+}
+
+static struct cfg802154_registered_device *
+__cfg802154_rdev_from_attrs(struct net *netns, struct nlattr **attrs)
+{
+ struct cfg802154_registered_device *rdev = NULL, *tmp;
+ struct net_device *netdev;
+
+ ASSERT_RTNL();
+
+ if (!attrs[NL802154_ATTR_WPAN_PHY] &&
+ !attrs[NL802154_ATTR_IFINDEX] &&
+ !attrs[NL802154_ATTR_WPAN_DEV])
+ return ERR_PTR(-EINVAL);
+
+ if (attrs[NL802154_ATTR_WPAN_PHY])
+ rdev = cfg802154_rdev_by_wpan_phy_idx(
+ nla_get_u32(attrs[NL802154_ATTR_WPAN_PHY]));
+
+ if (attrs[NL802154_ATTR_WPAN_DEV]) {
+ u64 wpan_dev_id = nla_get_u64(attrs[NL802154_ATTR_WPAN_DEV]);
+ struct wpan_dev *wpan_dev;
+ bool found = false;
+
+ tmp = cfg802154_rdev_by_wpan_phy_idx(wpan_dev_id >> 32);
+ if (tmp) {
+ /* make sure wpan_dev exists */
+ list_for_each_entry(wpan_dev, &tmp->wpan_dev_list, list) {
+ if (wpan_dev->identifier != (u32)wpan_dev_id)
+ continue;
+ found = true;
+ break;
+ }
+
+ if (!found)
+ tmp = NULL;
+
+ if (rdev && tmp != rdev)
+ return ERR_PTR(-EINVAL);
+ rdev = tmp;
+ }
+ }
+
+ if (attrs[NL802154_ATTR_IFINDEX]) {
+ int ifindex = nla_get_u32(attrs[NL802154_ATTR_IFINDEX]);
+
+ netdev = __dev_get_by_index(netns, ifindex);
+ if (netdev) {
+ if (netdev->ieee802154_ptr)
+ tmp = wpan_phy_to_rdev(
+ netdev->ieee802154_ptr->wpan_phy);
+ else
+ tmp = NULL;
+
+ /* not wireless device -- return error */
+ if (!tmp)
+ return ERR_PTR(-EINVAL);
+
+ /* mismatch -- return error */
+ if (rdev && tmp != rdev)
+ return ERR_PTR(-EINVAL);
+
+ rdev = tmp;
+ }
+ }
+
+ if (!rdev)
+ return ERR_PTR(-ENODEV);
+
+ if (netns != wpan_phy_net(&rdev->wpan_phy))
+ return ERR_PTR(-ENODEV);
+
+ return rdev;
+}
+
+/* This function returns a pointer to the driver
+ * that the genl_info item that is passed refers to.
+ *
+ * The result of this can be a PTR_ERR and hence must
+ * be checked with IS_ERR() for errors.
+ */
+static struct cfg802154_registered_device *
+cfg802154_get_dev_from_info(struct net *netns, struct genl_info *info)
+{
+ return __cfg802154_rdev_from_attrs(netns, info->attrs);
+}
+
+/* policy for the attributes */
+static const struct nla_policy nl802154_policy[NL802154_ATTR_MAX+1] = {
+ [NL802154_ATTR_WPAN_PHY] = { .type = NLA_U32 },
+ [NL802154_ATTR_WPAN_PHY_NAME] = { .type = NLA_NUL_STRING,
+ .len = 20-1 },
+
+ [NL802154_ATTR_IFINDEX] = { .type = NLA_U32 },
+ [NL802154_ATTR_IFTYPE] = { .type = NLA_U32 },
+ [NL802154_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
+
+ [NL802154_ATTR_WPAN_DEV] = { .type = NLA_U64 },
+
+ [NL802154_ATTR_PAGE] = { .type = NLA_U8, },
+ [NL802154_ATTR_CHANNEL] = { .type = NLA_U8, },
+
+ [NL802154_ATTR_TX_POWER] = { .type = NLA_S32, },
+
+ [NL802154_ATTR_CCA_MODE] = { .type = NLA_U32, },
+ [NL802154_ATTR_CCA_OPT] = { .type = NLA_U32, },
+ [NL802154_ATTR_CCA_ED_LEVEL] = { .type = NLA_S32, },
+
+ [NL802154_ATTR_SUPPORTED_CHANNEL] = { .type = NLA_U32, },
+
+ [NL802154_ATTR_PAN_ID] = { .type = NLA_U16, },
+ [NL802154_ATTR_EXTENDED_ADDR] = { .type = NLA_U64 },
+ [NL802154_ATTR_SHORT_ADDR] = { .type = NLA_U16, },
+
+ [NL802154_ATTR_MIN_BE] = { .type = NLA_U8, },
+ [NL802154_ATTR_MAX_BE] = { .type = NLA_U8, },
+ [NL802154_ATTR_MAX_CSMA_BACKOFFS] = { .type = NLA_U8, },
+
+ [NL802154_ATTR_MAX_FRAME_RETRIES] = { .type = NLA_S8, },
+
+ [NL802154_ATTR_LBT_MODE] = { .type = NLA_U8, },
+
+ [NL802154_ATTR_WPAN_PHY_CAPS] = { .type = NLA_NESTED },
+
+ [NL802154_ATTR_SUPPORTED_COMMANDS] = { .type = NLA_NESTED },
+
+ [NL802154_ATTR_ACKREQ_DEFAULT] = { .type = NLA_U8 },
+
+ [NL802154_ATTR_PID] = { .type = NLA_U32 },
+ [NL802154_ATTR_NETNS_FD] = { .type = NLA_U32 },
+#ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL
+ [NL802154_ATTR_SEC_ENABLED] = { .type = NLA_U8, },
+ [NL802154_ATTR_SEC_OUT_LEVEL] = { .type = NLA_U32, },
+ [NL802154_ATTR_SEC_OUT_KEY_ID] = { .type = NLA_NESTED, },
+ [NL802154_ATTR_SEC_FRAME_COUNTER] = { .type = NLA_U32 },
+
+ [NL802154_ATTR_SEC_LEVEL] = { .type = NLA_NESTED },
+ [NL802154_ATTR_SEC_DEVICE] = { .type = NLA_NESTED },
+ [NL802154_ATTR_SEC_DEVKEY] = { .type = NLA_NESTED },
+ [NL802154_ATTR_SEC_KEY] = { .type = NLA_NESTED },
+#endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */
+};
+
+#ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL
+static int
+nl802154_prepare_wpan_dev_dump(struct sk_buff *skb,
+ struct netlink_callback *cb,
+ struct cfg802154_registered_device **rdev,
+ struct wpan_dev **wpan_dev)
+{
+ const struct genl_dumpit_info *info = genl_dumpit_info(cb);
+ int err;
+
+ rtnl_lock();
+
+ if (!cb->args[0]) {
+ *wpan_dev = __cfg802154_wpan_dev_from_attrs(sock_net(skb->sk),
+ info->attrs);
+ if (IS_ERR(*wpan_dev)) {
+ err = PTR_ERR(*wpan_dev);
+ goto out_unlock;
+ }
+ *rdev = wpan_phy_to_rdev((*wpan_dev)->wpan_phy);
+ /* 0 is the first index - add 1 to parse only once */
+ cb->args[0] = (*rdev)->wpan_phy_idx + 1;
+ cb->args[1] = (*wpan_dev)->identifier;
+ } else {
+ /* subtract the 1 again here */
+ struct wpan_phy *wpan_phy = wpan_phy_idx_to_wpan_phy(cb->args[0] - 1);
+ struct wpan_dev *tmp;
+
+ if (!wpan_phy) {
+ err = -ENODEV;
+ goto out_unlock;
+ }
+ *rdev = wpan_phy_to_rdev(wpan_phy);
+ *wpan_dev = NULL;
+
+ list_for_each_entry(tmp, &(*rdev)->wpan_dev_list, list) {
+ if (tmp->identifier == cb->args[1]) {
+ *wpan_dev = tmp;
+ break;
+ }
+ }
+
+ if (!*wpan_dev) {
+ err = -ENODEV;
+ goto out_unlock;
+ }
+ }
+
+ return 0;
+ out_unlock:
+ rtnl_unlock();
+ return err;
+}
+
+static void
+nl802154_finish_wpan_dev_dump(struct cfg802154_registered_device *rdev)
+{
+ rtnl_unlock();
+}
+#endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */
+
+/* message building helper */
+static inline void *nl802154hdr_put(struct sk_buff *skb, u32 portid, u32 seq,
+ int flags, u8 cmd)
+{
+ /* since there is no private header just add the generic one */
+ return genlmsg_put(skb, portid, seq, &nl802154_fam, flags, cmd);
+}
+
+static int
+nl802154_put_flags(struct sk_buff *msg, int attr, u32 mask)
+{
+ struct nlattr *nl_flags = nla_nest_start_noflag(msg, attr);
+ int i;
+
+ if (!nl_flags)
+ return -ENOBUFS;
+
+ i = 0;
+ while (mask) {
+ if ((mask & 1) && nla_put_flag(msg, i))
+ return -ENOBUFS;
+
+ mask >>= 1;
+ i++;
+ }
+
+ nla_nest_end(msg, nl_flags);
+ return 0;
+}
+
+static int
+nl802154_send_wpan_phy_channels(struct cfg802154_registered_device *rdev,
+ struct sk_buff *msg)
+{
+ struct nlattr *nl_page;
+ unsigned long page;
+
+ nl_page = nla_nest_start_noflag(msg, NL802154_ATTR_CHANNELS_SUPPORTED);
+ if (!nl_page)
+ return -ENOBUFS;
+
+ for (page = 0; page <= IEEE802154_MAX_PAGE; page++) {
+ if (nla_put_u32(msg, NL802154_ATTR_SUPPORTED_CHANNEL,
+ rdev->wpan_phy.supported.channels[page]))
+ return -ENOBUFS;
+ }
+ nla_nest_end(msg, nl_page);
+
+ return 0;
+}
+
+static int
+nl802154_put_capabilities(struct sk_buff *msg,
+ struct cfg802154_registered_device *rdev)
+{
+ const struct wpan_phy_supported *caps = &rdev->wpan_phy.supported;
+ struct nlattr *nl_caps, *nl_channels;
+ int i;
+
+ nl_caps = nla_nest_start_noflag(msg, NL802154_ATTR_WPAN_PHY_CAPS);
+ if (!nl_caps)
+ return -ENOBUFS;
+
+ nl_channels = nla_nest_start_noflag(msg, NL802154_CAP_ATTR_CHANNELS);
+ if (!nl_channels)
+ return -ENOBUFS;
+
+ for (i = 0; i <= IEEE802154_MAX_PAGE; i++) {
+ if (caps->channels[i]) {
+ if (nl802154_put_flags(msg, i, caps->channels[i]))
+ return -ENOBUFS;
+ }
+ }
+
+ nla_nest_end(msg, nl_channels);
+
+ if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_ED_LEVEL) {
+ struct nlattr *nl_ed_lvls;
+
+ nl_ed_lvls = nla_nest_start_noflag(msg,
+ NL802154_CAP_ATTR_CCA_ED_LEVELS);
+ if (!nl_ed_lvls)
+ return -ENOBUFS;
+
+ for (i = 0; i < caps->cca_ed_levels_size; i++) {
+ if (nla_put_s32(msg, i, caps->cca_ed_levels[i]))
+ return -ENOBUFS;
+ }
+
+ nla_nest_end(msg, nl_ed_lvls);
+ }
+
+ if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_TXPOWER) {
+ struct nlattr *nl_tx_pwrs;
+
+ nl_tx_pwrs = nla_nest_start_noflag(msg,
+ NL802154_CAP_ATTR_TX_POWERS);
+ if (!nl_tx_pwrs)
+ return -ENOBUFS;
+
+ for (i = 0; i < caps->tx_powers_size; i++) {
+ if (nla_put_s32(msg, i, caps->tx_powers[i]))
+ return -ENOBUFS;
+ }
+
+ nla_nest_end(msg, nl_tx_pwrs);
+ }
+
+ if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_MODE) {
+ if (nl802154_put_flags(msg, NL802154_CAP_ATTR_CCA_MODES,
+ caps->cca_modes) ||
+ nl802154_put_flags(msg, NL802154_CAP_ATTR_CCA_OPTS,
+ caps->cca_opts))
+ return -ENOBUFS;
+ }
+
+ if (nla_put_u8(msg, NL802154_CAP_ATTR_MIN_MINBE, caps->min_minbe) ||
+ nla_put_u8(msg, NL802154_CAP_ATTR_MAX_MINBE, caps->max_minbe) ||
+ nla_put_u8(msg, NL802154_CAP_ATTR_MIN_MAXBE, caps->min_maxbe) ||
+ nla_put_u8(msg, NL802154_CAP_ATTR_MAX_MAXBE, caps->max_maxbe) ||
+ nla_put_u8(msg, NL802154_CAP_ATTR_MIN_CSMA_BACKOFFS,
+ caps->min_csma_backoffs) ||
+ nla_put_u8(msg, NL802154_CAP_ATTR_MAX_CSMA_BACKOFFS,
+ caps->max_csma_backoffs) ||
+ nla_put_s8(msg, NL802154_CAP_ATTR_MIN_FRAME_RETRIES,
+ caps->min_frame_retries) ||
+ nla_put_s8(msg, NL802154_CAP_ATTR_MAX_FRAME_RETRIES,
+ caps->max_frame_retries) ||
+ nl802154_put_flags(msg, NL802154_CAP_ATTR_IFTYPES,
+ caps->iftypes) ||
+ nla_put_u32(msg, NL802154_CAP_ATTR_LBT, caps->lbt))
+ return -ENOBUFS;
+
+ nla_nest_end(msg, nl_caps);
+
+ return 0;
+}
+
+static int nl802154_send_wpan_phy(struct cfg802154_registered_device *rdev,
+ enum nl802154_commands cmd,
+ struct sk_buff *msg, u32 portid, u32 seq,
+ int flags)
+{
+ struct nlattr *nl_cmds;
+ void *hdr;
+ int i;
+
+ hdr = nl802154hdr_put(msg, portid, seq, flags, cmd);
+ if (!hdr)
+ return -ENOBUFS;
+
+ if (nla_put_u32(msg, NL802154_ATTR_WPAN_PHY, rdev->wpan_phy_idx) ||
+ nla_put_string(msg, NL802154_ATTR_WPAN_PHY_NAME,
+ wpan_phy_name(&rdev->wpan_phy)) ||
+ nla_put_u32(msg, NL802154_ATTR_GENERATION,
+ cfg802154_rdev_list_generation))
+ goto nla_put_failure;
+
+ if (cmd != NL802154_CMD_NEW_WPAN_PHY)
+ goto finish;
+
+ /* DUMP PHY PIB */
+
+ /* current channel settings */
+ if (nla_put_u8(msg, NL802154_ATTR_PAGE,
+ rdev->wpan_phy.current_page) ||
+ nla_put_u8(msg, NL802154_ATTR_CHANNEL,
+ rdev->wpan_phy.current_channel))
+ goto nla_put_failure;
+
+ /* TODO remove this behaviour, we still keep support it for a while
+ * so users can change the behaviour to the new one.
+ */
+ if (nl802154_send_wpan_phy_channels(rdev, msg))
+ goto nla_put_failure;
+
+ /* cca mode */
+ if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_MODE) {
+ if (nla_put_u32(msg, NL802154_ATTR_CCA_MODE,
+ rdev->wpan_phy.cca.mode))
+ goto nla_put_failure;
+
+ if (rdev->wpan_phy.cca.mode == NL802154_CCA_ENERGY_CARRIER) {
+ if (nla_put_u32(msg, NL802154_ATTR_CCA_OPT,
+ rdev->wpan_phy.cca.opt))
+ goto nla_put_failure;
+ }
+ }
+
+ if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_TXPOWER) {
+ if (nla_put_s32(msg, NL802154_ATTR_TX_POWER,
+ rdev->wpan_phy.transmit_power))
+ goto nla_put_failure;
+ }
+
+ if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_ED_LEVEL) {
+ if (nla_put_s32(msg, NL802154_ATTR_CCA_ED_LEVEL,
+ rdev->wpan_phy.cca_ed_level))
+ goto nla_put_failure;
+ }
+
+ if (nl802154_put_capabilities(msg, rdev))
+ goto nla_put_failure;
+
+ nl_cmds = nla_nest_start_noflag(msg, NL802154_ATTR_SUPPORTED_COMMANDS);
+ if (!nl_cmds)
+ goto nla_put_failure;
+
+ i = 0;
+#define CMD(op, n) \
+ do { \
+ if (rdev->ops->op) { \
+ i++; \
+ if (nla_put_u32(msg, i, NL802154_CMD_ ## n)) \
+ goto nla_put_failure; \
+ } \
+ } while (0)
+
+ CMD(add_virtual_intf, NEW_INTERFACE);
+ CMD(del_virtual_intf, DEL_INTERFACE);
+ CMD(set_channel, SET_CHANNEL);
+ CMD(set_pan_id, SET_PAN_ID);
+ CMD(set_short_addr, SET_SHORT_ADDR);
+ CMD(set_backoff_exponent, SET_BACKOFF_EXPONENT);
+ CMD(set_max_csma_backoffs, SET_MAX_CSMA_BACKOFFS);
+ CMD(set_max_frame_retries, SET_MAX_FRAME_RETRIES);
+ CMD(set_lbt_mode, SET_LBT_MODE);
+ CMD(set_ackreq_default, SET_ACKREQ_DEFAULT);
+
+ if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_TXPOWER)
+ CMD(set_tx_power, SET_TX_POWER);
+
+ if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_ED_LEVEL)
+ CMD(set_cca_ed_level, SET_CCA_ED_LEVEL);
+
+ if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_MODE)
+ CMD(set_cca_mode, SET_CCA_MODE);
+
+#undef CMD
+ nla_nest_end(msg, nl_cmds);
+
+finish:
+ genlmsg_end(msg, hdr);
+ return 0;
+
+nla_put_failure:
+ genlmsg_cancel(msg, hdr);
+ return -EMSGSIZE;
+}
+
+struct nl802154_dump_wpan_phy_state {
+ s64 filter_wpan_phy;
+ long start;
+
+};
+
+static int nl802154_dump_wpan_phy_parse(struct sk_buff *skb,
+ struct netlink_callback *cb,
+ struct nl802154_dump_wpan_phy_state *state)
+{
+ const struct genl_dumpit_info *info = genl_dumpit_info(cb);
+ struct nlattr **tb = info->attrs;
+
+ if (tb[NL802154_ATTR_WPAN_PHY])
+ state->filter_wpan_phy = nla_get_u32(tb[NL802154_ATTR_WPAN_PHY]);
+ if (tb[NL802154_ATTR_WPAN_DEV])
+ state->filter_wpan_phy = nla_get_u64(tb[NL802154_ATTR_WPAN_DEV]) >> 32;
+ if (tb[NL802154_ATTR_IFINDEX]) {
+ struct net_device *netdev;
+ struct cfg802154_registered_device *rdev;
+ int ifidx = nla_get_u32(tb[NL802154_ATTR_IFINDEX]);
+
+ netdev = __dev_get_by_index(&init_net, ifidx);
+ if (!netdev)
+ return -ENODEV;
+ if (netdev->ieee802154_ptr) {
+ rdev = wpan_phy_to_rdev(
+ netdev->ieee802154_ptr->wpan_phy);
+ state->filter_wpan_phy = rdev->wpan_phy_idx;
+ }
+ }
+
+ return 0;
+}
+
+static int
+nl802154_dump_wpan_phy(struct sk_buff *skb, struct netlink_callback *cb)
+{
+ int idx = 0, ret;
+ struct nl802154_dump_wpan_phy_state *state = (void *)cb->args[0];
+ struct cfg802154_registered_device *rdev;
+
+ rtnl_lock();
+ if (!state) {
+ state = kzalloc(sizeof(*state), GFP_KERNEL);
+ if (!state) {
+ rtnl_unlock();
+ return -ENOMEM;
+ }
+ state->filter_wpan_phy = -1;
+ ret = nl802154_dump_wpan_phy_parse(skb, cb, state);
+ if (ret) {
+ kfree(state);
+ rtnl_unlock();
+ return ret;
+ }
+ cb->args[0] = (long)state;
+ }
+
+ list_for_each_entry(rdev, &cfg802154_rdev_list, list) {
+ if (!net_eq(wpan_phy_net(&rdev->wpan_phy), sock_net(skb->sk)))
+ continue;
+ if (++idx <= state->start)
+ continue;
+ if (state->filter_wpan_phy != -1 &&
+ state->filter_wpan_phy != rdev->wpan_phy_idx)
+ continue;
+ /* attempt to fit multiple wpan_phy data chunks into the skb */
+ ret = nl802154_send_wpan_phy(rdev,
+ NL802154_CMD_NEW_WPAN_PHY,
+ skb,
+ NETLINK_CB(cb->skb).portid,
+ cb->nlh->nlmsg_seq, NLM_F_MULTI);
+ if (ret < 0) {
+ if ((ret == -ENOBUFS || ret == -EMSGSIZE) &&
+ !skb->len && cb->min_dump_alloc < 4096) {
+ cb->min_dump_alloc = 4096;
+ rtnl_unlock();
+ return 1;
+ }
+ idx--;
+ break;
+ }
+ break;
+ }
+ rtnl_unlock();
+
+ state->start = idx;
+
+ return skb->len;
+}
+
+static int nl802154_dump_wpan_phy_done(struct netlink_callback *cb)
+{
+ kfree((void *)cb->args[0]);
+ return 0;
+}
+
+static int nl802154_get_wpan_phy(struct sk_buff *skb, struct genl_info *info)
+{
+ struct sk_buff *msg;
+ struct cfg802154_registered_device *rdev = info->user_ptr[0];
+
+ msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
+ if (!msg)
+ return -ENOMEM;
+
+ if (nl802154_send_wpan_phy(rdev, NL802154_CMD_NEW_WPAN_PHY, msg,
+ info->snd_portid, info->snd_seq, 0) < 0) {
+ nlmsg_free(msg);
+ return -ENOBUFS;
+ }
+
+ return genlmsg_reply(msg, info);
+}
+
+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);
+}
+
+#ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL
+#include <net/ieee802154_netdev.h>
+
+static int
+ieee802154_llsec_send_key_id(struct sk_buff *msg,
+ const struct ieee802154_llsec_key_id *desc)
+{
+ struct nlattr *nl_dev_addr;
+
+ if (nla_put_u32(msg, NL802154_KEY_ID_ATTR_MODE, desc->mode))
+ return -ENOBUFS;
+
+ switch (desc->mode) {
+ case NL802154_KEY_ID_MODE_IMPLICIT:
+ nl_dev_addr = nla_nest_start_noflag(msg,
+ NL802154_KEY_ID_ATTR_IMPLICIT);
+ if (!nl_dev_addr)
+ return -ENOBUFS;
+
+ if (nla_put_le16(msg, NL802154_DEV_ADDR_ATTR_PAN_ID,
+ desc->device_addr.pan_id) ||
+ nla_put_u32(msg, NL802154_DEV_ADDR_ATTR_MODE,
+ desc->device_addr.mode))
+ return -ENOBUFS;
+
+ switch (desc->device_addr.mode) {
+ case NL802154_DEV_ADDR_SHORT:
+ if (nla_put_le16(msg, NL802154_DEV_ADDR_ATTR_SHORT,
+ desc->device_addr.short_addr))
+ return -ENOBUFS;
+ break;
+ case NL802154_DEV_ADDR_EXTENDED:
+ if (nla_put_le64(msg, NL802154_DEV_ADDR_ATTR_EXTENDED,
+ desc->device_addr.extended_addr,
+ NL802154_DEV_ADDR_ATTR_PAD))
+ return -ENOBUFS;
+ break;
+ default:
+ /* userspace should handle unknown */
+ break;
+ }
+
+ nla_nest_end(msg, nl_dev_addr);
+ break;
+ case NL802154_KEY_ID_MODE_INDEX:
+ break;
+ case NL802154_KEY_ID_MODE_INDEX_SHORT:
+ /* TODO renmae short_source? */
+ if (nla_put_le32(msg, NL802154_KEY_ID_ATTR_SOURCE_SHORT,
+ desc->short_source))
+ return -ENOBUFS;
+ break;
+ case NL802154_KEY_ID_MODE_INDEX_EXTENDED:
+ if (nla_put_le64(msg, NL802154_KEY_ID_ATTR_SOURCE_EXTENDED,
+ desc->extended_source,
+ NL802154_KEY_ID_ATTR_PAD))
+ return -ENOBUFS;
+ break;
+ default:
+ /* userspace should handle unknown */
+ break;
+ }
+
+ /* TODO key_id to key_idx ? Check naming */
+ if (desc->mode != NL802154_KEY_ID_MODE_IMPLICIT) {
+ if (nla_put_u8(msg, NL802154_KEY_ID_ATTR_INDEX, desc->id))
+ return -ENOBUFS;
+ }
+
+ return 0;
+}
+
+static int nl802154_get_llsec_params(struct sk_buff *msg,
+ struct cfg802154_registered_device *rdev,
+ struct wpan_dev *wpan_dev)
+{
+ struct nlattr *nl_key_id;
+ struct ieee802154_llsec_params params;
+ int ret;
+
+ ret = rdev_get_llsec_params(rdev, wpan_dev, &params);
+ if (ret < 0)
+ return ret;
+
+ if (nla_put_u8(msg, NL802154_ATTR_SEC_ENABLED, params.enabled) ||
+ nla_put_u32(msg, NL802154_ATTR_SEC_OUT_LEVEL, params.out_level) ||
+ nla_put_be32(msg, NL802154_ATTR_SEC_FRAME_COUNTER,
+ params.frame_counter))
+ return -ENOBUFS;
+
+ nl_key_id = nla_nest_start_noflag(msg, NL802154_ATTR_SEC_OUT_KEY_ID);
+ if (!nl_key_id)
+ return -ENOBUFS;
+
+ ret = ieee802154_llsec_send_key_id(msg, &params.out_key);
+ if (ret < 0)
+ return ret;
+
+ nla_nest_end(msg, nl_key_id);
+
+ return 0;
+}
+#endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */
+
+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_64bit(msg, NL802154_ATTR_WPAN_DEV,
+ wpan_dev_id(wpan_dev), NL802154_ATTR_PAD) ||
+ 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,
+ NL802154_ATTR_PAD) ||
+ 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;
+
+ /* ackreq default behaviour */
+ if (nla_put_u8(msg, NL802154_ATTR_ACKREQ_DEFAULT, wpan_dev->ackreq))
+ goto nla_put_failure;
+
+#ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL
+ if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR)
+ goto out;
+
+ if (nl802154_get_llsec_params(msg, rdev, wpan_dev) < 0)
+ goto nla_put_failure;
+
+out:
+#endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */
+
+ genlmsg_end(msg, hdr);
+ return 0;
+
+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) {
+ if (!net_eq(wpan_phy_net(&rdev->wpan_phy), sock_net(skb->sk)))
+ continue;
+ 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);
+}
+
+static int nl802154_new_interface(struct sk_buff *skb, struct genl_info *info)
+{
+ struct cfg802154_registered_device *rdev = info->user_ptr[0];
+ enum nl802154_iftype type = NL802154_IFTYPE_UNSPEC;
+ __le64 extended_addr = cpu_to_le64(0x0000000000000000ULL);
+
+ /* TODO avoid failing a new interface
+ * creation due to pending removal?
+ */
+
+ if (!info->attrs[NL802154_ATTR_IFNAME])
+ return -EINVAL;
+
+ if (info->attrs[NL802154_ATTR_IFTYPE]) {
+ type = nla_get_u32(info->attrs[NL802154_ATTR_IFTYPE]);
+ if (type > NL802154_IFTYPE_MAX ||
+ !(rdev->wpan_phy.supported.iftypes & BIT(type)))
+ return -EINVAL;
+ }
+
+ if (info->attrs[NL802154_ATTR_EXTENDED_ADDR])
+ extended_addr = nla_get_le64(info->attrs[NL802154_ATTR_EXTENDED_ADDR]);
+
+ if (!rdev->ops->add_virtual_intf)
+ return -EOPNOTSUPP;
+
+ return rdev_add_virtual_intf(rdev,
+ nla_data(info->attrs[NL802154_ATTR_IFNAME]),
+ NET_NAME_USER, type, extended_addr);
+}
+
+static int nl802154_del_interface(struct sk_buff *skb, struct genl_info *info)
+{
+ struct cfg802154_registered_device *rdev = info->user_ptr[0];
+ struct wpan_dev *wpan_dev = info->user_ptr[1];
+
+ if (!rdev->ops->del_virtual_intf)
+ return -EOPNOTSUPP;
+
+ /* If we remove a wpan device without a netdev then clear
+ * user_ptr[1] so that nl802154_post_doit won't dereference it
+ * to check if it needs to do dev_put(). Otherwise it crashes
+ * since the wpan_dev has been freed, unlike with a netdev where
+ * we need the dev_put() for the netdev to really be freed.
+ */
+ if (!wpan_dev->netdev)
+ info->user_ptr[1] = NULL;
+
+ return rdev_del_virtual_intf(rdev, wpan_dev);
+}
+
+static int nl802154_set_channel(struct sk_buff *skb, struct genl_info *info)
+{
+ struct cfg802154_registered_device *rdev = info->user_ptr[0];
+ u8 channel, page;
+
+ if (!info->attrs[NL802154_ATTR_PAGE] ||
+ !info->attrs[NL802154_ATTR_CHANNEL])
+ return -EINVAL;
+
+ page = nla_get_u8(info->attrs[NL802154_ATTR_PAGE]);
+ channel = nla_get_u8(info->attrs[NL802154_ATTR_CHANNEL]);
+
+ /* check 802.15.4 constraints */
+ if (page > IEEE802154_MAX_PAGE || channel > IEEE802154_MAX_CHANNEL ||
+ !(rdev->wpan_phy.supported.channels[page] & BIT(channel)))
+ return -EINVAL;
+
+ return rdev_set_channel(rdev, page, channel);
+}
+
+static int nl802154_set_cca_mode(struct sk_buff *skb, struct genl_info *info)
+{
+ struct cfg802154_registered_device *rdev = info->user_ptr[0];
+ struct wpan_phy_cca cca;
+
+ if (!(rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_MODE))
+ return -EOPNOTSUPP;
+
+ if (!info->attrs[NL802154_ATTR_CCA_MODE])
+ return -EINVAL;
+
+ cca.mode = nla_get_u32(info->attrs[NL802154_ATTR_CCA_MODE]);
+ /* checking 802.15.4 constraints */
+ if (cca.mode < NL802154_CCA_ENERGY ||
+ cca.mode > NL802154_CCA_ATTR_MAX ||
+ !(rdev->wpan_phy.supported.cca_modes & BIT(cca.mode)))
+ return -EINVAL;
+
+ if (cca.mode == NL802154_CCA_ENERGY_CARRIER) {
+ if (!info->attrs[NL802154_ATTR_CCA_OPT])
+ return -EINVAL;
+
+ cca.opt = nla_get_u32(info->attrs[NL802154_ATTR_CCA_OPT]);
+ if (cca.opt > NL802154_CCA_OPT_ATTR_MAX ||
+ !(rdev->wpan_phy.supported.cca_opts & BIT(cca.opt)))
+ return -EINVAL;
+ }
+
+ return rdev_set_cca_mode(rdev, &cca);
+}
+
+static int nl802154_set_cca_ed_level(struct sk_buff *skb, struct genl_info *info)
+{
+ struct cfg802154_registered_device *rdev = info->user_ptr[0];
+ s32 ed_level;
+ int i;
+
+ if (!(rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_ED_LEVEL))
+ return -EOPNOTSUPP;
+
+ if (!info->attrs[NL802154_ATTR_CCA_ED_LEVEL])
+ return -EINVAL;
+
+ ed_level = nla_get_s32(info->attrs[NL802154_ATTR_CCA_ED_LEVEL]);
+
+ for (i = 0; i < rdev->wpan_phy.supported.cca_ed_levels_size; i++) {
+ if (ed_level == rdev->wpan_phy.supported.cca_ed_levels[i])
+ return rdev_set_cca_ed_level(rdev, ed_level);
+ }
+
+ return -EINVAL;
+}
+
+static int nl802154_set_tx_power(struct sk_buff *skb, struct genl_info *info)
+{
+ struct cfg802154_registered_device *rdev = info->user_ptr[0];
+ s32 power;
+ int i;
+
+ if (!(rdev->wpan_phy.flags & WPAN_PHY_FLAG_TXPOWER))
+ return -EOPNOTSUPP;
+
+ if (!info->attrs[NL802154_ATTR_TX_POWER])
+ return -EINVAL;
+
+ power = nla_get_s32(info->attrs[NL802154_ATTR_TX_POWER]);
+
+ for (i = 0; i < rdev->wpan_phy.supported.tx_powers_size; i++) {
+ if (power == rdev->wpan_phy.supported.tx_powers[i])
+ return rdev_set_tx_power(rdev, power);
+ }
+
+ return -EINVAL;
+}
+
+static int nl802154_set_pan_id(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;
+ __le16 pan_id;
+
+ /* conflict here while tx/rx calls */
+ if (netif_running(dev))
+ return -EBUSY;
+
+ if (wpan_dev->lowpan_dev) {
+ if (netif_running(wpan_dev->lowpan_dev))
+ return -EBUSY;
+ }
+
+ /* don't change address fields on monitor */
+ if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR ||
+ !info->attrs[NL802154_ATTR_PAN_ID])
+ return -EINVAL;
+
+ pan_id = nla_get_le16(info->attrs[NL802154_ATTR_PAN_ID]);
+
+ /* TODO
+ * I am not sure about to check here on broadcast pan_id.
+ * Broadcast is a valid setting, comment from 802.15.4:
+ * If this value is 0xffff, the device is not associated.
+ *
+ * This could useful to simple deassociate an device.
+ */
+ if (pan_id == cpu_to_le16(IEEE802154_PAN_ID_BROADCAST))
+ return -EINVAL;
+
+ return rdev_set_pan_id(rdev, wpan_dev, pan_id);
+}
+
+static int nl802154_set_short_addr(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;
+ __le16 short_addr;
+
+ /* conflict here while tx/rx calls */
+ if (netif_running(dev))
+ return -EBUSY;
+
+ if (wpan_dev->lowpan_dev) {
+ if (netif_running(wpan_dev->lowpan_dev))
+ return -EBUSY;
+ }
+
+ /* don't change address fields on monitor */
+ if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR ||
+ !info->attrs[NL802154_ATTR_SHORT_ADDR])
+ return -EINVAL;
+
+ short_addr = nla_get_le16(info->attrs[NL802154_ATTR_SHORT_ADDR]);
+
+ /* TODO
+ * I am not sure about to check here on broadcast short_addr.
+ * Broadcast is a valid setting, comment from 802.15.4:
+ * A value of 0xfffe indicates that the device has
+ * associated but has not been allocated an address. A
+ * value of 0xffff indicates that the device does not
+ * have a short address.
+ *
+ * I think we should allow to set these settings but
+ * don't allow to allow socket communication with it.
+ */
+ if (short_addr == cpu_to_le16(IEEE802154_ADDR_SHORT_UNSPEC) ||
+ short_addr == cpu_to_le16(IEEE802154_ADDR_SHORT_BROADCAST))
+ return -EINVAL;
+
+ return rdev_set_short_addr(rdev, wpan_dev, short_addr);
+}
+
+static int
+nl802154_set_backoff_exponent(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;
+ u8 min_be, max_be;
+
+ /* should be set on netif open inside phy settings */
+ if (netif_running(dev))
+ return -EBUSY;
+
+ if (!info->attrs[NL802154_ATTR_MIN_BE] ||
+ !info->attrs[NL802154_ATTR_MAX_BE])
+ return -EINVAL;
+
+ min_be = nla_get_u8(info->attrs[NL802154_ATTR_MIN_BE]);
+ max_be = nla_get_u8(info->attrs[NL802154_ATTR_MAX_BE]);
+
+ /* check 802.15.4 constraints */
+ if (min_be < rdev->wpan_phy.supported.min_minbe ||
+ min_be > rdev->wpan_phy.supported.max_minbe ||
+ max_be < rdev->wpan_phy.supported.min_maxbe ||
+ max_be > rdev->wpan_phy.supported.max_maxbe ||
+ min_be > max_be)
+ return -EINVAL;
+
+ return rdev_set_backoff_exponent(rdev, wpan_dev, min_be, max_be);
+}
+
+static int
+nl802154_set_max_csma_backoffs(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;
+ u8 max_csma_backoffs;
+
+ /* conflict here while other running iface settings */
+ if (netif_running(dev))
+ return -EBUSY;
+
+ if (!info->attrs[NL802154_ATTR_MAX_CSMA_BACKOFFS])
+ return -EINVAL;
+
+ max_csma_backoffs = nla_get_u8(
+ info->attrs[NL802154_ATTR_MAX_CSMA_BACKOFFS]);
+
+ /* check 802.15.4 constraints */
+ if (max_csma_backoffs < rdev->wpan_phy.supported.min_csma_backoffs ||
+ max_csma_backoffs > rdev->wpan_phy.supported.max_csma_backoffs)
+ return -EINVAL;
+
+ return rdev_set_max_csma_backoffs(rdev, wpan_dev, max_csma_backoffs);
+}
+
+static int
+nl802154_set_max_frame_retries(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;
+ s8 max_frame_retries;
+
+ if (netif_running(dev))
+ return -EBUSY;
+
+ if (!info->attrs[NL802154_ATTR_MAX_FRAME_RETRIES])
+ return -EINVAL;
+
+ max_frame_retries = nla_get_s8(
+ info->attrs[NL802154_ATTR_MAX_FRAME_RETRIES]);
+
+ /* check 802.15.4 constraints */
+ if (max_frame_retries < rdev->wpan_phy.supported.min_frame_retries ||
+ max_frame_retries > rdev->wpan_phy.supported.max_frame_retries)
+ return -EINVAL;
+
+ return rdev_set_max_frame_retries(rdev, wpan_dev, max_frame_retries);
+}
+
+static int nl802154_set_lbt_mode(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;
+ int mode;
+
+ if (netif_running(dev))
+ return -EBUSY;
+
+ if (!info->attrs[NL802154_ATTR_LBT_MODE])
+ return -EINVAL;
+
+ mode = nla_get_u8(info->attrs[NL802154_ATTR_LBT_MODE]);
+
+ if (mode != 0 && mode != 1)
+ return -EINVAL;
+
+ if (!wpan_phy_supported_bool(mode, rdev->wpan_phy.supported.lbt))
+ return -EINVAL;
+
+ return rdev_set_lbt_mode(rdev, wpan_dev, mode);
+}
+
+static int
+nl802154_set_ackreq_default(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;
+ int ackreq;
+
+ if (netif_running(dev))
+ return -EBUSY;
+
+ if (!info->attrs[NL802154_ATTR_ACKREQ_DEFAULT])
+ return -EINVAL;
+
+ ackreq = nla_get_u8(info->attrs[NL802154_ATTR_ACKREQ_DEFAULT]);
+
+ if (ackreq != 0 && ackreq != 1)
+ return -EINVAL;
+
+ return rdev_set_ackreq_default(rdev, wpan_dev, ackreq);
+}
+
+static int nl802154_wpan_phy_netns(struct sk_buff *skb, struct genl_info *info)
+{
+ struct cfg802154_registered_device *rdev = info->user_ptr[0];
+ struct net *net;
+ int err;
+
+ if (info->attrs[NL802154_ATTR_PID]) {
+ u32 pid = nla_get_u32(info->attrs[NL802154_ATTR_PID]);
+
+ net = get_net_ns_by_pid(pid);
+ } else if (info->attrs[NL802154_ATTR_NETNS_FD]) {
+ u32 fd = nla_get_u32(info->attrs[NL802154_ATTR_NETNS_FD]);
+
+ net = get_net_ns_by_fd(fd);
+ } else {
+ return -EINVAL;
+ }
+
+ if (IS_ERR(net))
+ return PTR_ERR(net);
+
+ err = 0;
+
+ /* check if anything to do */
+ if (!net_eq(wpan_phy_net(&rdev->wpan_phy), net))
+ err = cfg802154_switch_netns(rdev, net);
+
+ put_net(net);
+ return err;
+}
+
+#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 },
+ [NL802154_DEV_ADDR_ATTR_MODE] = { .type = NLA_U32 },
+ [NL802154_DEV_ADDR_ATTR_SHORT] = { .type = NLA_U16 },
+ [NL802154_DEV_ADDR_ATTR_EXTENDED] = { .type = NLA_U64 },
+};
+
+static int
+ieee802154_llsec_parse_dev_addr(struct nlattr *nla,
+ struct ieee802154_addr *addr)
+{
+ struct nlattr *attrs[NL802154_DEV_ADDR_ATTR_MAX + 1];
+
+ if (!nla || nla_parse_nested_deprecated(attrs, NL802154_DEV_ADDR_ATTR_MAX, nla, nl802154_dev_addr_policy, NULL))
+ return -EINVAL;
+
+ if (!attrs[NL802154_DEV_ADDR_ATTR_PAN_ID] || !attrs[NL802154_DEV_ADDR_ATTR_MODE])
+ return -EINVAL;
+
+ addr->pan_id = nla_get_le16(attrs[NL802154_DEV_ADDR_ATTR_PAN_ID]);
+ addr->mode = nla_get_u32(attrs[NL802154_DEV_ADDR_ATTR_MODE]);
+ switch (addr->mode) {
+ case NL802154_DEV_ADDR_SHORT:
+ if (!attrs[NL802154_DEV_ADDR_ATTR_SHORT])
+ return -EINVAL;
+ addr->short_addr = nla_get_le16(attrs[NL802154_DEV_ADDR_ATTR_SHORT]);
+ break;
+ case NL802154_DEV_ADDR_EXTENDED:
+ if (!attrs[NL802154_DEV_ADDR_ATTR_EXTENDED])
+ return -EINVAL;
+ addr->extended_addr = nla_get_le64(attrs[NL802154_DEV_ADDR_ATTR_EXTENDED]);
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static const struct nla_policy nl802154_key_id_policy[NL802154_KEY_ID_ATTR_MAX + 1] = {
+ [NL802154_KEY_ID_ATTR_MODE] = { .type = NLA_U32 },
+ [NL802154_KEY_ID_ATTR_INDEX] = { .type = NLA_U8 },
+ [NL802154_KEY_ID_ATTR_IMPLICIT] = { .type = NLA_NESTED },
+ [NL802154_KEY_ID_ATTR_SOURCE_SHORT] = { .type = NLA_U32 },
+ [NL802154_KEY_ID_ATTR_SOURCE_EXTENDED] = { .type = NLA_U64 },
+};
+
+static int
+ieee802154_llsec_parse_key_id(struct nlattr *nla,
+ struct ieee802154_llsec_key_id *desc)
+{
+ struct nlattr *attrs[NL802154_KEY_ID_ATTR_MAX + 1];
+
+ if (!nla || nla_parse_nested_deprecated(attrs, NL802154_KEY_ID_ATTR_MAX, nla, nl802154_key_id_policy, NULL))
+ return -EINVAL;
+
+ if (!attrs[NL802154_KEY_ID_ATTR_MODE])
+ return -EINVAL;
+
+ desc->mode = nla_get_u32(attrs[NL802154_KEY_ID_ATTR_MODE]);
+ switch (desc->mode) {
+ case NL802154_KEY_ID_MODE_IMPLICIT:
+ if (!attrs[NL802154_KEY_ID_ATTR_IMPLICIT])
+ return -EINVAL;
+
+ if (ieee802154_llsec_parse_dev_addr(attrs[NL802154_KEY_ID_ATTR_IMPLICIT],
+ &desc->device_addr) < 0)
+ return -EINVAL;
+ break;
+ case NL802154_KEY_ID_MODE_INDEX:
+ break;
+ case NL802154_KEY_ID_MODE_INDEX_SHORT:
+ if (!attrs[NL802154_KEY_ID_ATTR_SOURCE_SHORT])
+ return -EINVAL;
+
+ desc->short_source = nla_get_le32(attrs[NL802154_KEY_ID_ATTR_SOURCE_SHORT]);
+ break;
+ case NL802154_KEY_ID_MODE_INDEX_EXTENDED:
+ if (!attrs[NL802154_KEY_ID_ATTR_SOURCE_EXTENDED])
+ return -EINVAL;
+
+ desc->extended_source = nla_get_le64(attrs[NL802154_KEY_ID_ATTR_SOURCE_EXTENDED]);
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ if (desc->mode != NL802154_KEY_ID_MODE_IMPLICIT) {
+ if (!attrs[NL802154_KEY_ID_ATTR_INDEX])
+ return -EINVAL;
+
+ /* TODO change id to idx */
+ desc->id = nla_get_u8(attrs[NL802154_KEY_ID_ATTR_INDEX]);
+ }
+
+ return 0;
+}
+
+static int nl802154_set_llsec_params(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 ieee802154_llsec_params params;
+ u32 changed = 0;
+ int ret;
+
+ if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR)
+ return -EOPNOTSUPP;
+
+ if (info->attrs[NL802154_ATTR_SEC_ENABLED]) {
+ u8 enabled;
+
+ enabled = nla_get_u8(info->attrs[NL802154_ATTR_SEC_ENABLED]);
+ if (enabled != 0 && enabled != 1)
+ return -EINVAL;
+
+ params.enabled = nla_get_u8(info->attrs[NL802154_ATTR_SEC_ENABLED]);
+ changed |= IEEE802154_LLSEC_PARAM_ENABLED;
+ }
+
+ if (info->attrs[NL802154_ATTR_SEC_OUT_KEY_ID]) {
+ ret = ieee802154_llsec_parse_key_id(info->attrs[NL802154_ATTR_SEC_OUT_KEY_ID],
+ &params.out_key);
+ if (ret < 0)
+ return ret;
+
+ changed |= IEEE802154_LLSEC_PARAM_OUT_KEY;
+ }
+
+ if (info->attrs[NL802154_ATTR_SEC_OUT_LEVEL]) {
+ params.out_level = nla_get_u32(info->attrs[NL802154_ATTR_SEC_OUT_LEVEL]);
+ if (params.out_level > NL802154_SECLEVEL_MAX)
+ return -EINVAL;
+
+ changed |= IEEE802154_LLSEC_PARAM_OUT_LEVEL;
+ }
+
+ if (info->attrs[NL802154_ATTR_SEC_FRAME_COUNTER]) {
+ params.frame_counter = nla_get_be32(info->attrs[NL802154_ATTR_SEC_FRAME_COUNTER]);
+ changed |= IEEE802154_LLSEC_PARAM_FRAME_COUNTER;
+ }
+
+ return rdev_set_llsec_params(rdev, wpan_dev, &params, changed);
+}
+
+static int nl802154_send_key(struct sk_buff *msg, u32 cmd, u32 portid,
+ u32 seq, int flags,
+ struct cfg802154_registered_device *rdev,
+ struct net_device *dev,
+ const struct ieee802154_llsec_key_entry *key)
+{
+ void *hdr;
+ u32 commands[NL802154_CMD_FRAME_NR_IDS / 32];
+ struct nlattr *nl_key, *nl_key_id;
+
+ hdr = nl802154hdr_put(msg, portid, seq, flags, cmd);
+ if (!hdr)
+ return -ENOBUFS;
+
+ if (nla_put_u32(msg, NL802154_ATTR_IFINDEX, dev->ifindex))
+ goto nla_put_failure;
+
+ nl_key = nla_nest_start_noflag(msg, NL802154_ATTR_SEC_KEY);
+ if (!nl_key)
+ goto nla_put_failure;
+
+ nl_key_id = nla_nest_start_noflag(msg, NL802154_KEY_ATTR_ID);
+ if (!nl_key_id)
+ goto nla_put_failure;
+
+ if (ieee802154_llsec_send_key_id(msg, &key->id) < 0)
+ goto nla_put_failure;
+
+ nla_nest_end(msg, nl_key_id);
+
+ if (nla_put_u8(msg, NL802154_KEY_ATTR_USAGE_FRAMES,
+ key->key->frame_types))
+ goto nla_put_failure;
+
+ if (key->key->frame_types & BIT(NL802154_FRAME_CMD)) {
+ /* TODO for each nested */
+ memset(commands, 0, sizeof(commands));
+ commands[7] = key->key->cmd_frame_ids;
+ if (nla_put(msg, NL802154_KEY_ATTR_USAGE_CMDS,
+ sizeof(commands), commands))
+ goto nla_put_failure;
+ }
+
+ if (nla_put(msg, NL802154_KEY_ATTR_BYTES, NL802154_KEY_SIZE,
+ key->key->key))
+ goto nla_put_failure;
+
+ nla_nest_end(msg, nl_key);
+ genlmsg_end(msg, hdr);
+
+ return 0;
+
+nla_put_failure:
+ genlmsg_cancel(msg, hdr);
+ return -EMSGSIZE;
+}
+
+static int
+nl802154_dump_llsec_key(struct sk_buff *skb, struct netlink_callback *cb)
+{
+ struct cfg802154_registered_device *rdev = NULL;
+ struct ieee802154_llsec_key_entry *key;
+ struct ieee802154_llsec_table *table;
+ struct wpan_dev *wpan_dev;
+ int err;
+
+ err = nl802154_prepare_wpan_dev_dump(skb, cb, &rdev, &wpan_dev);
+ if (err)
+ return err;
+
+ if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR) {
+ err = skb->len;
+ goto out_err;
+ }
+
+ if (!wpan_dev->netdev) {
+ err = -EINVAL;
+ goto out_err;
+ }
+
+ rdev_lock_llsec_table(rdev, wpan_dev);
+ rdev_get_llsec_table(rdev, wpan_dev, &table);
+
+ /* TODO make it like station dump */
+ if (cb->args[2])
+ goto out;
+
+ list_for_each_entry(key, &table->keys, list) {
+ if (nl802154_send_key(skb, NL802154_CMD_NEW_SEC_KEY,
+ NETLINK_CB(cb->skb).portid,
+ cb->nlh->nlmsg_seq, NLM_F_MULTI,
+ rdev, wpan_dev->netdev, key) < 0) {
+ /* TODO */
+ err = -EIO;
+ rdev_unlock_llsec_table(rdev, wpan_dev);
+ goto out_err;
+ }
+ }
+
+ cb->args[2] = 1;
+
+out:
+ rdev_unlock_llsec_table(rdev, wpan_dev);
+ err = skb->len;
+out_err:
+ nl802154_finish_wpan_dev_dump(rdev);
+
+ return err;
+}
+
+static const struct nla_policy nl802154_key_policy[NL802154_KEY_ATTR_MAX + 1] = {
+ [NL802154_KEY_ATTR_ID] = { NLA_NESTED },
+ /* TODO handle it as for_each_nested and NLA_FLAG? */
+ [NL802154_KEY_ATTR_USAGE_FRAMES] = { NLA_U8 },
+ /* TODO handle it as for_each_nested, not static array? */
+ [NL802154_KEY_ATTR_USAGE_CMDS] = { .len = NL802154_CMD_FRAME_NR_IDS / 8 },
+ [NL802154_KEY_ATTR_BYTES] = { .len = NL802154_KEY_SIZE },
+};
+
+static int nl802154_add_llsec_key(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 nlattr *attrs[NL802154_KEY_ATTR_MAX + 1];
+ struct ieee802154_llsec_key key = { };
+ struct ieee802154_llsec_key_id id = { };
+ u32 commands[NL802154_CMD_FRAME_NR_IDS / 32] = { };
+
+ if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR)
+ return -EOPNOTSUPP;
+
+ if (!info->attrs[NL802154_ATTR_SEC_KEY] ||
+ nla_parse_nested_deprecated(attrs, NL802154_KEY_ATTR_MAX, info->attrs[NL802154_ATTR_SEC_KEY], nl802154_key_policy, info->extack))
+ return -EINVAL;
+
+ if (!attrs[NL802154_KEY_ATTR_USAGE_FRAMES] ||
+ !attrs[NL802154_KEY_ATTR_BYTES])
+ return -EINVAL;
+
+ if (ieee802154_llsec_parse_key_id(attrs[NL802154_KEY_ATTR_ID], &id) < 0)
+ return -ENOBUFS;
+
+ key.frame_types = nla_get_u8(attrs[NL802154_KEY_ATTR_USAGE_FRAMES]);
+ if (key.frame_types > BIT(NL802154_FRAME_MAX) ||
+ ((key.frame_types & BIT(NL802154_FRAME_CMD)) &&
+ !attrs[NL802154_KEY_ATTR_USAGE_CMDS]))
+ return -EINVAL;
+
+ if (attrs[NL802154_KEY_ATTR_USAGE_CMDS]) {
+ /* TODO for each nested */
+ nla_memcpy(commands, attrs[NL802154_KEY_ATTR_USAGE_CMDS],
+ NL802154_CMD_FRAME_NR_IDS / 8);
+
+ /* TODO understand the -EINVAL logic here? last condition */
+ if (commands[0] || commands[1] || commands[2] || commands[3] ||
+ commands[4] || commands[5] || commands[6] ||
+ commands[7] > BIT(NL802154_CMD_FRAME_MAX))
+ return -EINVAL;
+
+ key.cmd_frame_ids = commands[7];
+ } else {
+ key.cmd_frame_ids = 0;
+ }
+
+ nla_memcpy(key.key, attrs[NL802154_KEY_ATTR_BYTES], NL802154_KEY_SIZE);
+
+ if (ieee802154_llsec_parse_key_id(attrs[NL802154_KEY_ATTR_ID], &id) < 0)
+ return -ENOBUFS;
+
+ return rdev_add_llsec_key(rdev, wpan_dev, &id, &key);
+}
+
+static int nl802154_del_llsec_key(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 nlattr *attrs[NL802154_KEY_ATTR_MAX + 1];
+ struct ieee802154_llsec_key_id id;
+
+ if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR)
+ return -EOPNOTSUPP;
+
+ if (!info->attrs[NL802154_ATTR_SEC_KEY] ||
+ nla_parse_nested_deprecated(attrs, NL802154_KEY_ATTR_MAX, info->attrs[NL802154_ATTR_SEC_KEY], nl802154_key_policy, info->extack))
+ return -EINVAL;
+
+ if (ieee802154_llsec_parse_key_id(attrs[NL802154_KEY_ATTR_ID], &id) < 0)
+ return -ENOBUFS;
+
+ return rdev_del_llsec_key(rdev, wpan_dev, &id);
+}
+
+static int nl802154_send_device(struct sk_buff *msg, u32 cmd, u32 portid,
+ u32 seq, int flags,
+ struct cfg802154_registered_device *rdev,
+ struct net_device *dev,
+ const struct ieee802154_llsec_device *dev_desc)
+{
+ void *hdr;
+ struct nlattr *nl_device;
+
+ hdr = nl802154hdr_put(msg, portid, seq, flags, cmd);
+ if (!hdr)
+ return -ENOBUFS;
+
+ if (nla_put_u32(msg, NL802154_ATTR_IFINDEX, dev->ifindex))
+ goto nla_put_failure;
+
+ nl_device = nla_nest_start_noflag(msg, NL802154_ATTR_SEC_DEVICE);
+ if (!nl_device)
+ goto nla_put_failure;
+
+ if (nla_put_u32(msg, NL802154_DEV_ATTR_FRAME_COUNTER,
+ dev_desc->frame_counter) ||
+ nla_put_le16(msg, NL802154_DEV_ATTR_PAN_ID, dev_desc->pan_id) ||
+ nla_put_le16(msg, NL802154_DEV_ATTR_SHORT_ADDR,
+ dev_desc->short_addr) ||
+ nla_put_le64(msg, NL802154_DEV_ATTR_EXTENDED_ADDR,
+ dev_desc->hwaddr, NL802154_DEV_ATTR_PAD) ||
+ nla_put_u8(msg, NL802154_DEV_ATTR_SECLEVEL_EXEMPT,
+ dev_desc->seclevel_exempt) ||
+ nla_put_u32(msg, NL802154_DEV_ATTR_KEY_MODE, dev_desc->key_mode))
+ goto nla_put_failure;
+
+ nla_nest_end(msg, nl_device);
+ genlmsg_end(msg, hdr);
+
+ return 0;
+
+nla_put_failure:
+ genlmsg_cancel(msg, hdr);
+ return -EMSGSIZE;
+}
+
+static int
+nl802154_dump_llsec_dev(struct sk_buff *skb, struct netlink_callback *cb)
+{
+ struct cfg802154_registered_device *rdev = NULL;
+ struct ieee802154_llsec_device *dev;
+ struct ieee802154_llsec_table *table;
+ struct wpan_dev *wpan_dev;
+ int err;
+
+ err = nl802154_prepare_wpan_dev_dump(skb, cb, &rdev, &wpan_dev);
+ if (err)
+ return err;
+
+ if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR) {
+ err = skb->len;
+ goto out_err;
+ }
+
+ if (!wpan_dev->netdev) {
+ err = -EINVAL;
+ goto out_err;
+ }
+
+ rdev_lock_llsec_table(rdev, wpan_dev);
+ rdev_get_llsec_table(rdev, wpan_dev, &table);
+
+ /* TODO make it like station dump */
+ if (cb->args[2])
+ goto out;
+
+ list_for_each_entry(dev, &table->devices, list) {
+ if (nl802154_send_device(skb, NL802154_CMD_NEW_SEC_LEVEL,
+ NETLINK_CB(cb->skb).portid,
+ cb->nlh->nlmsg_seq, NLM_F_MULTI,
+ rdev, wpan_dev->netdev, dev) < 0) {
+ /* TODO */
+ err = -EIO;
+ rdev_unlock_llsec_table(rdev, wpan_dev);
+ goto out_err;
+ }
+ }
+
+ cb->args[2] = 1;
+
+out:
+ rdev_unlock_llsec_table(rdev, wpan_dev);
+ err = skb->len;
+out_err:
+ nl802154_finish_wpan_dev_dump(rdev);
+
+ return err;
+}
+
+static const struct nla_policy nl802154_dev_policy[NL802154_DEV_ATTR_MAX + 1] = {
+ [NL802154_DEV_ATTR_FRAME_COUNTER] = { NLA_U32 },
+ [NL802154_DEV_ATTR_PAN_ID] = { .type = NLA_U16 },
+ [NL802154_DEV_ATTR_SHORT_ADDR] = { .type = NLA_U16 },
+ [NL802154_DEV_ATTR_EXTENDED_ADDR] = { .type = NLA_U64 },
+ [NL802154_DEV_ATTR_SECLEVEL_EXEMPT] = { NLA_U8 },
+ [NL802154_DEV_ATTR_KEY_MODE] = { NLA_U32 },
+};
+
+static int
+ieee802154_llsec_parse_device(struct nlattr *nla,
+ struct ieee802154_llsec_device *dev)
+{
+ struct nlattr *attrs[NL802154_DEV_ATTR_MAX + 1];
+
+ if (!nla || nla_parse_nested_deprecated(attrs, NL802154_DEV_ATTR_MAX, nla, nl802154_dev_policy, NULL))
+ return -EINVAL;
+
+ memset(dev, 0, sizeof(*dev));
+
+ if (!attrs[NL802154_DEV_ATTR_FRAME_COUNTER] ||
+ !attrs[NL802154_DEV_ATTR_PAN_ID] ||
+ !attrs[NL802154_DEV_ATTR_SHORT_ADDR] ||
+ !attrs[NL802154_DEV_ATTR_EXTENDED_ADDR] ||
+ !attrs[NL802154_DEV_ATTR_SECLEVEL_EXEMPT] ||
+ !attrs[NL802154_DEV_ATTR_KEY_MODE])
+ return -EINVAL;
+
+ /* TODO be32 */
+ dev->frame_counter = nla_get_u32(attrs[NL802154_DEV_ATTR_FRAME_COUNTER]);
+ dev->pan_id = nla_get_le16(attrs[NL802154_DEV_ATTR_PAN_ID]);
+ dev->short_addr = nla_get_le16(attrs[NL802154_DEV_ATTR_SHORT_ADDR]);
+ /* TODO rename hwaddr to extended_addr */
+ dev->hwaddr = nla_get_le64(attrs[NL802154_DEV_ATTR_EXTENDED_ADDR]);
+ dev->seclevel_exempt = nla_get_u8(attrs[NL802154_DEV_ATTR_SECLEVEL_EXEMPT]);
+ dev->key_mode = nla_get_u32(attrs[NL802154_DEV_ATTR_KEY_MODE]);
+
+ if (dev->key_mode > NL802154_DEVKEY_MAX ||
+ (dev->seclevel_exempt != 0 && dev->seclevel_exempt != 1))
+ return -EINVAL;
+
+ return 0;
+}
+
+static int nl802154_add_llsec_dev(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 ieee802154_llsec_device dev_desc;
+
+ if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR)
+ return -EOPNOTSUPP;
+
+ if (ieee802154_llsec_parse_device(info->attrs[NL802154_ATTR_SEC_DEVICE],
+ &dev_desc) < 0)
+ return -EINVAL;
+
+ return rdev_add_device(rdev, wpan_dev, &dev_desc);
+}
+
+static int nl802154_del_llsec_dev(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 nlattr *attrs[NL802154_DEV_ATTR_MAX + 1];
+ __le64 extended_addr;
+
+ if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR)
+ return -EOPNOTSUPP;
+
+ if (!info->attrs[NL802154_ATTR_SEC_DEVICE] ||
+ nla_parse_nested_deprecated(attrs, NL802154_DEV_ATTR_MAX, info->attrs[NL802154_ATTR_SEC_DEVICE], nl802154_dev_policy, info->extack))
+ return -EINVAL;
+
+ if (!attrs[NL802154_DEV_ATTR_EXTENDED_ADDR])
+ return -EINVAL;
+
+ extended_addr = nla_get_le64(attrs[NL802154_DEV_ATTR_EXTENDED_ADDR]);
+ return rdev_del_device(rdev, wpan_dev, extended_addr);
+}
+
+static int nl802154_send_devkey(struct sk_buff *msg, u32 cmd, u32 portid,
+ u32 seq, int flags,
+ struct cfg802154_registered_device *rdev,
+ struct net_device *dev, __le64 extended_addr,
+ const struct ieee802154_llsec_device_key *devkey)
+{
+ void *hdr;
+ struct nlattr *nl_devkey, *nl_key_id;
+
+ hdr = nl802154hdr_put(msg, portid, seq, flags, cmd);
+ if (!hdr)
+ return -ENOBUFS;
+
+ if (nla_put_u32(msg, NL802154_ATTR_IFINDEX, dev->ifindex))
+ goto nla_put_failure;
+
+ nl_devkey = nla_nest_start_noflag(msg, NL802154_ATTR_SEC_DEVKEY);
+ if (!nl_devkey)
+ goto nla_put_failure;
+
+ if (nla_put_le64(msg, NL802154_DEVKEY_ATTR_EXTENDED_ADDR,
+ extended_addr, NL802154_DEVKEY_ATTR_PAD) ||
+ nla_put_u32(msg, NL802154_DEVKEY_ATTR_FRAME_COUNTER,
+ devkey->frame_counter))
+ goto nla_put_failure;
+
+ nl_key_id = nla_nest_start_noflag(msg, NL802154_DEVKEY_ATTR_ID);
+ if (!nl_key_id)
+ goto nla_put_failure;
+
+ if (ieee802154_llsec_send_key_id(msg, &devkey->key_id) < 0)
+ goto nla_put_failure;
+
+ nla_nest_end(msg, nl_key_id);
+ nla_nest_end(msg, nl_devkey);
+ genlmsg_end(msg, hdr);
+
+ return 0;
+
+nla_put_failure:
+ genlmsg_cancel(msg, hdr);
+ return -EMSGSIZE;
+}
+
+static int
+nl802154_dump_llsec_devkey(struct sk_buff *skb, struct netlink_callback *cb)
+{
+ struct cfg802154_registered_device *rdev = NULL;
+ struct ieee802154_llsec_device_key *kpos;
+ struct ieee802154_llsec_device *dpos;
+ struct ieee802154_llsec_table *table;
+ struct wpan_dev *wpan_dev;
+ int err;
+
+ err = nl802154_prepare_wpan_dev_dump(skb, cb, &rdev, &wpan_dev);
+ if (err)
+ return err;
+
+ if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR) {
+ err = skb->len;
+ goto out_err;
+ }
+
+ if (!wpan_dev->netdev) {
+ err = -EINVAL;
+ goto out_err;
+ }
+
+ rdev_lock_llsec_table(rdev, wpan_dev);
+ rdev_get_llsec_table(rdev, wpan_dev, &table);
+
+ /* TODO make it like station dump */
+ if (cb->args[2])
+ goto out;
+
+ /* TODO look if remove devkey and do some nested attribute */
+ list_for_each_entry(dpos, &table->devices, list) {
+ list_for_each_entry(kpos, &dpos->keys, list) {
+ if (nl802154_send_devkey(skb,
+ NL802154_CMD_NEW_SEC_LEVEL,
+ NETLINK_CB(cb->skb).portid,
+ cb->nlh->nlmsg_seq,
+ NLM_F_MULTI, rdev,
+ wpan_dev->netdev,
+ dpos->hwaddr,
+ kpos) < 0) {
+ /* TODO */
+ err = -EIO;
+ rdev_unlock_llsec_table(rdev, wpan_dev);
+ goto out_err;
+ }
+ }
+ }
+
+ cb->args[2] = 1;
+
+out:
+ rdev_unlock_llsec_table(rdev, wpan_dev);
+ err = skb->len;
+out_err:
+ nl802154_finish_wpan_dev_dump(rdev);
+
+ return err;
+}
+
+static const struct nla_policy nl802154_devkey_policy[NL802154_DEVKEY_ATTR_MAX + 1] = {
+ [NL802154_DEVKEY_ATTR_FRAME_COUNTER] = { NLA_U32 },
+ [NL802154_DEVKEY_ATTR_EXTENDED_ADDR] = { NLA_U64 },
+ [NL802154_DEVKEY_ATTR_ID] = { NLA_NESTED },
+};
+
+static int nl802154_add_llsec_devkey(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 nlattr *attrs[NL802154_DEVKEY_ATTR_MAX + 1];
+ struct ieee802154_llsec_device_key key;
+ __le64 extended_addr;
+
+ if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR)
+ return -EOPNOTSUPP;
+
+ if (!info->attrs[NL802154_ATTR_SEC_DEVKEY] ||
+ nla_parse_nested_deprecated(attrs, NL802154_DEVKEY_ATTR_MAX, info->attrs[NL802154_ATTR_SEC_DEVKEY], nl802154_devkey_policy, info->extack) < 0)
+ return -EINVAL;
+
+ if (!attrs[NL802154_DEVKEY_ATTR_FRAME_COUNTER] ||
+ !attrs[NL802154_DEVKEY_ATTR_EXTENDED_ADDR])
+ return -EINVAL;
+
+ /* TODO change key.id ? */
+ if (ieee802154_llsec_parse_key_id(attrs[NL802154_DEVKEY_ATTR_ID],
+ &key.key_id) < 0)
+ return -ENOBUFS;
+
+ /* TODO be32 */
+ key.frame_counter = nla_get_u32(attrs[NL802154_DEVKEY_ATTR_FRAME_COUNTER]);
+ /* TODO change naming hwaddr -> extended_addr
+ * check unique identifier short+pan OR extended_addr
+ */
+ extended_addr = nla_get_le64(attrs[NL802154_DEVKEY_ATTR_EXTENDED_ADDR]);
+ return rdev_add_devkey(rdev, wpan_dev, extended_addr, &key);
+}
+
+static int nl802154_del_llsec_devkey(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 nlattr *attrs[NL802154_DEVKEY_ATTR_MAX + 1];
+ struct ieee802154_llsec_device_key key;
+ __le64 extended_addr;
+
+ if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR)
+ return -EOPNOTSUPP;
+
+ if (!info->attrs[NL802154_ATTR_SEC_DEVKEY] ||
+ nla_parse_nested_deprecated(attrs, NL802154_DEVKEY_ATTR_MAX, info->attrs[NL802154_ATTR_SEC_DEVKEY], nl802154_devkey_policy, info->extack))
+ return -EINVAL;
+
+ if (!attrs[NL802154_DEVKEY_ATTR_EXTENDED_ADDR])
+ return -EINVAL;
+
+ /* TODO change key.id ? */
+ if (ieee802154_llsec_parse_key_id(attrs[NL802154_DEVKEY_ATTR_ID],
+ &key.key_id) < 0)
+ return -ENOBUFS;
+
+ /* TODO change naming hwaddr -> extended_addr
+ * check unique identifier short+pan OR extended_addr
+ */
+ extended_addr = nla_get_le64(attrs[NL802154_DEVKEY_ATTR_EXTENDED_ADDR]);
+ return rdev_del_devkey(rdev, wpan_dev, extended_addr, &key);
+}
+
+static int nl802154_send_seclevel(struct sk_buff *msg, u32 cmd, u32 portid,
+ u32 seq, int flags,
+ struct cfg802154_registered_device *rdev,
+ struct net_device *dev,
+ const struct ieee802154_llsec_seclevel *sl)
+{
+ void *hdr;
+ struct nlattr *nl_seclevel;
+
+ hdr = nl802154hdr_put(msg, portid, seq, flags, cmd);
+ if (!hdr)
+ return -ENOBUFS;
+
+ if (nla_put_u32(msg, NL802154_ATTR_IFINDEX, dev->ifindex))
+ goto nla_put_failure;
+
+ nl_seclevel = nla_nest_start_noflag(msg, NL802154_ATTR_SEC_LEVEL);
+ if (!nl_seclevel)
+ goto nla_put_failure;
+
+ if (nla_put_u32(msg, NL802154_SECLEVEL_ATTR_FRAME, sl->frame_type) ||
+ nla_put_u32(msg, NL802154_SECLEVEL_ATTR_LEVELS, sl->sec_levels) ||
+ nla_put_u8(msg, NL802154_SECLEVEL_ATTR_DEV_OVERRIDE,
+ sl->device_override))
+ goto nla_put_failure;
+
+ if (sl->frame_type == NL802154_FRAME_CMD) {
+ if (nla_put_u32(msg, NL802154_SECLEVEL_ATTR_CMD_FRAME,
+ sl->cmd_frame_id))
+ goto nla_put_failure;
+ }
+
+ nla_nest_end(msg, nl_seclevel);
+ genlmsg_end(msg, hdr);
+
+ return 0;
+
+nla_put_failure:
+ genlmsg_cancel(msg, hdr);
+ return -EMSGSIZE;
+}
+
+static int
+nl802154_dump_llsec_seclevel(struct sk_buff *skb, struct netlink_callback *cb)
+{
+ struct cfg802154_registered_device *rdev = NULL;
+ struct ieee802154_llsec_seclevel *sl;
+ struct ieee802154_llsec_table *table;
+ struct wpan_dev *wpan_dev;
+ int err;
+
+ err = nl802154_prepare_wpan_dev_dump(skb, cb, &rdev, &wpan_dev);
+ if (err)
+ return err;
+
+ if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR) {
+ err = skb->len;
+ goto out_err;
+ }
+
+ if (!wpan_dev->netdev) {
+ err = -EINVAL;
+ goto out_err;
+ }
+
+ rdev_lock_llsec_table(rdev, wpan_dev);
+ rdev_get_llsec_table(rdev, wpan_dev, &table);
+
+ /* TODO make it like station dump */
+ if (cb->args[2])
+ goto out;
+
+ list_for_each_entry(sl, &table->security_levels, list) {
+ if (nl802154_send_seclevel(skb, NL802154_CMD_NEW_SEC_LEVEL,
+ NETLINK_CB(cb->skb).portid,
+ cb->nlh->nlmsg_seq, NLM_F_MULTI,
+ rdev, wpan_dev->netdev, sl) < 0) {
+ /* TODO */
+ err = -EIO;
+ rdev_unlock_llsec_table(rdev, wpan_dev);
+ goto out_err;
+ }
+ }
+
+ cb->args[2] = 1;
+
+out:
+ rdev_unlock_llsec_table(rdev, wpan_dev);
+ err = skb->len;
+out_err:
+ nl802154_finish_wpan_dev_dump(rdev);
+
+ return err;
+}
+
+static const struct nla_policy nl802154_seclevel_policy[NL802154_SECLEVEL_ATTR_MAX + 1] = {
+ [NL802154_SECLEVEL_ATTR_LEVELS] = { .type = NLA_U8 },
+ [NL802154_SECLEVEL_ATTR_FRAME] = { .type = NLA_U32 },
+ [NL802154_SECLEVEL_ATTR_CMD_FRAME] = { .type = NLA_U32 },
+ [NL802154_SECLEVEL_ATTR_DEV_OVERRIDE] = { .type = NLA_U8 },
+};
+
+static int
+llsec_parse_seclevel(struct nlattr *nla, struct ieee802154_llsec_seclevel *sl)
+{
+ struct nlattr *attrs[NL802154_SECLEVEL_ATTR_MAX + 1];
+
+ if (!nla || nla_parse_nested_deprecated(attrs, NL802154_SECLEVEL_ATTR_MAX, nla, nl802154_seclevel_policy, NULL))
+ return -EINVAL;
+
+ memset(sl, 0, sizeof(*sl));
+
+ if (!attrs[NL802154_SECLEVEL_ATTR_LEVELS] ||
+ !attrs[NL802154_SECLEVEL_ATTR_FRAME] ||
+ !attrs[NL802154_SECLEVEL_ATTR_DEV_OVERRIDE])
+ return -EINVAL;
+
+ sl->sec_levels = nla_get_u8(attrs[NL802154_SECLEVEL_ATTR_LEVELS]);
+ sl->frame_type = nla_get_u32(attrs[NL802154_SECLEVEL_ATTR_FRAME]);
+ sl->device_override = nla_get_u8(attrs[NL802154_SECLEVEL_ATTR_DEV_OVERRIDE]);
+ if (sl->frame_type > NL802154_FRAME_MAX ||
+ (sl->device_override != 0 && sl->device_override != 1))
+ return -EINVAL;
+
+ if (sl->frame_type == NL802154_FRAME_CMD) {
+ if (!attrs[NL802154_SECLEVEL_ATTR_CMD_FRAME])
+ return -EINVAL;
+
+ sl->cmd_frame_id = nla_get_u32(attrs[NL802154_SECLEVEL_ATTR_CMD_FRAME]);
+ if (sl->cmd_frame_id > NL802154_CMD_FRAME_MAX)
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int nl802154_add_llsec_seclevel(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 ieee802154_llsec_seclevel sl;
+
+ if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR)
+ return -EOPNOTSUPP;
+
+ if (llsec_parse_seclevel(info->attrs[NL802154_ATTR_SEC_LEVEL],
+ &sl) < 0)
+ return -EINVAL;
+
+ return rdev_add_seclevel(rdev, wpan_dev, &sl);
+}
+
+static int nl802154_del_llsec_seclevel(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 ieee802154_llsec_seclevel sl;
+
+ if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR)
+ return -EOPNOTSUPP;
+
+ if (!info->attrs[NL802154_ATTR_SEC_LEVEL] ||
+ llsec_parse_seclevel(info->attrs[NL802154_ATTR_SEC_LEVEL],
+ &sl) < 0)
+ return -EINVAL;
+
+ return rdev_del_seclevel(rdev, wpan_dev, &sl);
+}
+#endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */
+
+#define NL802154_FLAG_NEED_WPAN_PHY 0x01
+#define NL802154_FLAG_NEED_NETDEV 0x02
+#define NL802154_FLAG_NEED_RTNL 0x04
+#define NL802154_FLAG_CHECK_NETDEV_UP 0x08
+#define NL802154_FLAG_NEED_WPAN_DEV 0x10
+
+static int nl802154_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
+ struct genl_info *info)
+{
+ struct cfg802154_registered_device *rdev;
+ struct wpan_dev *wpan_dev;
+ struct net_device *dev;
+ bool rtnl = ops->internal_flags & NL802154_FLAG_NEED_RTNL;
+
+ if (rtnl)
+ rtnl_lock();
+
+ if (ops->internal_flags & NL802154_FLAG_NEED_WPAN_PHY) {
+ rdev = cfg802154_get_dev_from_info(genl_info_net(info), info);
+ if (IS_ERR(rdev)) {
+ if (rtnl)
+ rtnl_unlock();
+ return PTR_ERR(rdev);
+ }
+ info->user_ptr[0] = rdev;
+ } else if (ops->internal_flags & NL802154_FLAG_NEED_NETDEV ||
+ ops->internal_flags & NL802154_FLAG_NEED_WPAN_DEV) {
+ ASSERT_RTNL();
+ wpan_dev = __cfg802154_wpan_dev_from_attrs(genl_info_net(info),
+ info->attrs);
+ if (IS_ERR(wpan_dev)) {
+ if (rtnl)
+ rtnl_unlock();
+ return PTR_ERR(wpan_dev);
+ }
+
+ dev = wpan_dev->netdev;
+ rdev = wpan_phy_to_rdev(wpan_dev->wpan_phy);
+
+ if (ops->internal_flags & NL802154_FLAG_NEED_NETDEV) {
+ if (!dev) {
+ if (rtnl)
+ rtnl_unlock();
+ return -EINVAL;
+ }
+
+ info->user_ptr[1] = dev;
+ } else {
+ info->user_ptr[1] = wpan_dev;
+ }
+
+ if (dev) {
+ if (ops->internal_flags & NL802154_FLAG_CHECK_NETDEV_UP &&
+ !netif_running(dev)) {
+ if (rtnl)
+ rtnl_unlock();
+ return -ENETDOWN;
+ }
+
+ dev_hold(dev);
+ }
+
+ info->user_ptr[0] = rdev;
+ }
+
+ return 0;
+}
+
+static void nl802154_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
+ struct genl_info *info)
+{
+ if (info->user_ptr[1]) {
+ if (ops->internal_flags & NL802154_FLAG_NEED_WPAN_DEV) {
+ struct wpan_dev *wpan_dev = info->user_ptr[1];
+
+ dev_put(wpan_dev->netdev);
+ } else {
+ dev_put(info->user_ptr[1]);
+ }
+ }
+
+ if (ops->internal_flags & NL802154_FLAG_NEED_RTNL)
+ rtnl_unlock();
+}
+
+static const struct genl_ops nl802154_ops[] = {
+ {
+ .cmd = NL802154_CMD_GET_WPAN_PHY,
+ .validate = GENL_DONT_VALIDATE_STRICT |
+ GENL_DONT_VALIDATE_DUMP_STRICT,
+ .doit = nl802154_get_wpan_phy,
+ .dumpit = nl802154_dump_wpan_phy,
+ .done = nl802154_dump_wpan_phy_done,
+ /* can be retrieved by unprivileged users */
+ .internal_flags = NL802154_FLAG_NEED_WPAN_PHY |
+ NL802154_FLAG_NEED_RTNL,
+ },
+ {
+ .cmd = NL802154_CMD_GET_INTERFACE,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+ .doit = nl802154_get_interface,
+ .dumpit = nl802154_dump_interface,
+ /* can be retrieved by unprivileged users */
+ .internal_flags = NL802154_FLAG_NEED_WPAN_DEV |
+ NL802154_FLAG_NEED_RTNL,
+ },
+ {
+ .cmd = NL802154_CMD_NEW_INTERFACE,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+ .doit = nl802154_new_interface,
+ .flags = GENL_ADMIN_PERM,
+ .internal_flags = NL802154_FLAG_NEED_WPAN_PHY |
+ NL802154_FLAG_NEED_RTNL,
+ },
+ {
+ .cmd = NL802154_CMD_DEL_INTERFACE,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+ .doit = nl802154_del_interface,
+ .flags = GENL_ADMIN_PERM,
+ .internal_flags = NL802154_FLAG_NEED_WPAN_DEV |
+ NL802154_FLAG_NEED_RTNL,
+ },
+ {
+ .cmd = NL802154_CMD_SET_CHANNEL,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+ .doit = nl802154_set_channel,
+ .flags = GENL_ADMIN_PERM,
+ .internal_flags = NL802154_FLAG_NEED_WPAN_PHY |
+ NL802154_FLAG_NEED_RTNL,
+ },
+ {
+ .cmd = NL802154_CMD_SET_CCA_MODE,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+ .doit = nl802154_set_cca_mode,
+ .flags = GENL_ADMIN_PERM,
+ .internal_flags = NL802154_FLAG_NEED_WPAN_PHY |
+ NL802154_FLAG_NEED_RTNL,
+ },
+ {
+ .cmd = NL802154_CMD_SET_CCA_ED_LEVEL,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+ .doit = nl802154_set_cca_ed_level,
+ .flags = GENL_ADMIN_PERM,
+ .internal_flags = NL802154_FLAG_NEED_WPAN_PHY |
+ NL802154_FLAG_NEED_RTNL,
+ },
+ {
+ .cmd = NL802154_CMD_SET_TX_POWER,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+ .doit = nl802154_set_tx_power,
+ .flags = GENL_ADMIN_PERM,
+ .internal_flags = NL802154_FLAG_NEED_WPAN_PHY |
+ NL802154_FLAG_NEED_RTNL,
+ },
+ {
+ .cmd = NL802154_CMD_SET_WPAN_PHY_NETNS,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+ .doit = nl802154_wpan_phy_netns,
+ .flags = GENL_ADMIN_PERM,
+ .internal_flags = NL802154_FLAG_NEED_WPAN_PHY |
+ NL802154_FLAG_NEED_RTNL,
+ },
+ {
+ .cmd = NL802154_CMD_SET_PAN_ID,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+ .doit = nl802154_set_pan_id,
+ .flags = GENL_ADMIN_PERM,
+ .internal_flags = NL802154_FLAG_NEED_NETDEV |
+ NL802154_FLAG_NEED_RTNL,
+ },
+ {
+ .cmd = NL802154_CMD_SET_SHORT_ADDR,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+ .doit = nl802154_set_short_addr,
+ .flags = GENL_ADMIN_PERM,
+ .internal_flags = NL802154_FLAG_NEED_NETDEV |
+ NL802154_FLAG_NEED_RTNL,
+ },
+ {
+ .cmd = NL802154_CMD_SET_BACKOFF_EXPONENT,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+ .doit = nl802154_set_backoff_exponent,
+ .flags = GENL_ADMIN_PERM,
+ .internal_flags = NL802154_FLAG_NEED_NETDEV |
+ NL802154_FLAG_NEED_RTNL,
+ },
+ {
+ .cmd = NL802154_CMD_SET_MAX_CSMA_BACKOFFS,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+ .doit = nl802154_set_max_csma_backoffs,
+ .flags = GENL_ADMIN_PERM,
+ .internal_flags = NL802154_FLAG_NEED_NETDEV |
+ NL802154_FLAG_NEED_RTNL,
+ },
+ {
+ .cmd = NL802154_CMD_SET_MAX_FRAME_RETRIES,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+ .doit = nl802154_set_max_frame_retries,
+ .flags = GENL_ADMIN_PERM,
+ .internal_flags = NL802154_FLAG_NEED_NETDEV |
+ NL802154_FLAG_NEED_RTNL,
+ },
+ {
+ .cmd = NL802154_CMD_SET_LBT_MODE,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+ .doit = nl802154_set_lbt_mode,
+ .flags = GENL_ADMIN_PERM,
+ .internal_flags = NL802154_FLAG_NEED_NETDEV |
+ NL802154_FLAG_NEED_RTNL,
+ },
+ {
+ .cmd = NL802154_CMD_SET_ACKREQ_DEFAULT,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+ .doit = nl802154_set_ackreq_default,
+ .flags = GENL_ADMIN_PERM,
+ .internal_flags = NL802154_FLAG_NEED_NETDEV |
+ NL802154_FLAG_NEED_RTNL,
+ },
+#ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL
+ {
+ .cmd = NL802154_CMD_SET_SEC_PARAMS,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+ .doit = nl802154_set_llsec_params,
+ .flags = GENL_ADMIN_PERM,
+ .internal_flags = NL802154_FLAG_NEED_NETDEV |
+ NL802154_FLAG_NEED_RTNL,
+ },
+ {
+ .cmd = NL802154_CMD_GET_SEC_KEY,
+ .validate = GENL_DONT_VALIDATE_STRICT |
+ GENL_DONT_VALIDATE_DUMP_STRICT,
+ /* TODO .doit by matching key id? */
+ .dumpit = nl802154_dump_llsec_key,
+ .flags = GENL_ADMIN_PERM,
+ .internal_flags = NL802154_FLAG_NEED_NETDEV |
+ NL802154_FLAG_NEED_RTNL,
+ },
+ {
+ .cmd = NL802154_CMD_NEW_SEC_KEY,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+ .doit = nl802154_add_llsec_key,
+ .flags = GENL_ADMIN_PERM,
+ .internal_flags = NL802154_FLAG_NEED_NETDEV |
+ NL802154_FLAG_NEED_RTNL,
+ },
+ {
+ .cmd = NL802154_CMD_DEL_SEC_KEY,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+ .doit = nl802154_del_llsec_key,
+ .flags = GENL_ADMIN_PERM,
+ .internal_flags = NL802154_FLAG_NEED_NETDEV |
+ NL802154_FLAG_NEED_RTNL,
+ },
+ /* TODO unique identifier must short+pan OR extended_addr */
+ {
+ .cmd = NL802154_CMD_GET_SEC_DEV,
+ .validate = GENL_DONT_VALIDATE_STRICT |
+ GENL_DONT_VALIDATE_DUMP_STRICT,
+ /* TODO .doit by matching extended_addr? */
+ .dumpit = nl802154_dump_llsec_dev,
+ .flags = GENL_ADMIN_PERM,
+ .internal_flags = NL802154_FLAG_NEED_NETDEV |
+ NL802154_FLAG_NEED_RTNL,
+ },
+ {
+ .cmd = NL802154_CMD_NEW_SEC_DEV,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+ .doit = nl802154_add_llsec_dev,
+ .flags = GENL_ADMIN_PERM,
+ .internal_flags = NL802154_FLAG_NEED_NETDEV |
+ NL802154_FLAG_NEED_RTNL,
+ },
+ {
+ .cmd = NL802154_CMD_DEL_SEC_DEV,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+ .doit = nl802154_del_llsec_dev,
+ .flags = GENL_ADMIN_PERM,
+ .internal_flags = NL802154_FLAG_NEED_NETDEV |
+ NL802154_FLAG_NEED_RTNL,
+ },
+ /* TODO remove complete devkey, put it as nested? */
+ {
+ .cmd = NL802154_CMD_GET_SEC_DEVKEY,
+ .validate = GENL_DONT_VALIDATE_STRICT |
+ GENL_DONT_VALIDATE_DUMP_STRICT,
+ /* TODO doit by matching ??? */
+ .dumpit = nl802154_dump_llsec_devkey,
+ .flags = GENL_ADMIN_PERM,
+ .internal_flags = NL802154_FLAG_NEED_NETDEV |
+ NL802154_FLAG_NEED_RTNL,
+ },
+ {
+ .cmd = NL802154_CMD_NEW_SEC_DEVKEY,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+ .doit = nl802154_add_llsec_devkey,
+ .flags = GENL_ADMIN_PERM,
+ .internal_flags = NL802154_FLAG_NEED_NETDEV |
+ NL802154_FLAG_NEED_RTNL,
+ },
+ {
+ .cmd = NL802154_CMD_DEL_SEC_DEVKEY,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+ .doit = nl802154_del_llsec_devkey,
+ .flags = GENL_ADMIN_PERM,
+ .internal_flags = NL802154_FLAG_NEED_NETDEV |
+ NL802154_FLAG_NEED_RTNL,
+ },
+ {
+ .cmd = NL802154_CMD_GET_SEC_LEVEL,
+ .validate = GENL_DONT_VALIDATE_STRICT |
+ GENL_DONT_VALIDATE_DUMP_STRICT,
+ /* TODO .doit by matching frame_type? */
+ .dumpit = nl802154_dump_llsec_seclevel,
+ .flags = GENL_ADMIN_PERM,
+ .internal_flags = NL802154_FLAG_NEED_NETDEV |
+ NL802154_FLAG_NEED_RTNL,
+ },
+ {
+ .cmd = NL802154_CMD_NEW_SEC_LEVEL,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+ .doit = nl802154_add_llsec_seclevel,
+ .flags = GENL_ADMIN_PERM,
+ .internal_flags = NL802154_FLAG_NEED_NETDEV |
+ NL802154_FLAG_NEED_RTNL,
+ },
+ {
+ .cmd = NL802154_CMD_DEL_SEC_LEVEL,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+ /* TODO match frame_type only? */
+ .doit = nl802154_del_llsec_seclevel,
+ .flags = GENL_ADMIN_PERM,
+ .internal_flags = NL802154_FLAG_NEED_NETDEV |
+ NL802154_FLAG_NEED_RTNL,
+ },
+#endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */
+};
+
+static struct genl_family nl802154_fam __ro_after_init = {
+ .name = NL802154_GENL_NAME, /* have users key off the name instead */
+ .hdrsize = 0, /* no private header */
+ .version = 1, /* no particular meaning now */
+ .maxattr = NL802154_ATTR_MAX,
+ .policy = nl802154_policy,
+ .netnsok = true,
+ .pre_doit = nl802154_pre_doit,
+ .post_doit = nl802154_post_doit,
+ .module = THIS_MODULE,
+ .ops = nl802154_ops,
+ .n_ops = ARRAY_SIZE(nl802154_ops),
+ .resv_start_op = NL802154_CMD_DEL_SEC_LEVEL + 1,
+ .mcgrps = nl802154_mcgrps,
+ .n_mcgrps = ARRAY_SIZE(nl802154_mcgrps),
+};
+
+/* initialisation/exit functions */
+int __init nl802154_init(void)
+{
+ return genl_register_family(&nl802154_fam);
+}
+
+void nl802154_exit(void)
+{
+ genl_unregister_family(&nl802154_fam);
+}
diff --git a/net/ieee802154/nl802154.h b/net/ieee802154/nl802154.h
new file mode 100644
index 000000000..8c4b6d089
--- /dev/null
+++ b/net/ieee802154/nl802154.h
@@ -0,0 +1,8 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __IEEE802154_NL802154_H
+#define __IEEE802154_NL802154_H
+
+int nl802154_init(void);
+void nl802154_exit(void);
+
+#endif /* __IEEE802154_NL802154_H */
diff --git a/net/ieee802154/nl_policy.c b/net/ieee802154/nl_policy.c
new file mode 100644
index 000000000..0672b2f01
--- /dev/null
+++ b/net/ieee802154/nl_policy.c
@@ -0,0 +1,74 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * nl802154.h
+ *
+ * Copyright (C) 2007, 2008 Siemens AG
+ */
+
+#include <linux/kernel.h>
+#include <net/netlink.h>
+#include <linux/nl802154.h>
+
+#define NLA_HW_ADDR NLA_U64
+
+const struct nla_policy ieee802154_policy[IEEE802154_ATTR_MAX + 1] = {
+ [IEEE802154_ATTR_DEV_NAME] = { .type = NLA_STRING, },
+ [IEEE802154_ATTR_DEV_INDEX] = { .type = NLA_U32, },
+ [IEEE802154_ATTR_PHY_NAME] = { .type = NLA_STRING, },
+
+ [IEEE802154_ATTR_STATUS] = { .type = NLA_U8, },
+ [IEEE802154_ATTR_SHORT_ADDR] = { .type = NLA_U16, },
+ [IEEE802154_ATTR_HW_ADDR] = { .type = NLA_HW_ADDR, },
+ [IEEE802154_ATTR_PAN_ID] = { .type = NLA_U16, },
+ [IEEE802154_ATTR_CHANNEL] = { .type = NLA_U8, },
+ [IEEE802154_ATTR_BCN_ORD] = { .type = NLA_U8, },
+ [IEEE802154_ATTR_SF_ORD] = { .type = NLA_U8, },
+ [IEEE802154_ATTR_PAN_COORD] = { .type = NLA_U8, },
+ [IEEE802154_ATTR_BAT_EXT] = { .type = NLA_U8, },
+ [IEEE802154_ATTR_COORD_REALIGN] = { .type = NLA_U8, },
+ [IEEE802154_ATTR_PAGE] = { .type = NLA_U8, },
+ [IEEE802154_ATTR_DEV_TYPE] = { .type = NLA_U8, },
+ [IEEE802154_ATTR_COORD_SHORT_ADDR] = { .type = NLA_U16, },
+ [IEEE802154_ATTR_COORD_HW_ADDR] = { .type = NLA_HW_ADDR, },
+ [IEEE802154_ATTR_COORD_PAN_ID] = { .type = NLA_U16, },
+ [IEEE802154_ATTR_SRC_SHORT_ADDR] = { .type = NLA_U16, },
+ [IEEE802154_ATTR_SRC_HW_ADDR] = { .type = NLA_HW_ADDR, },
+ [IEEE802154_ATTR_SRC_PAN_ID] = { .type = NLA_U16, },
+ [IEEE802154_ATTR_DEST_SHORT_ADDR] = { .type = NLA_U16, },
+ [IEEE802154_ATTR_DEST_HW_ADDR] = { .type = NLA_HW_ADDR, },
+ [IEEE802154_ATTR_DEST_PAN_ID] = { .type = NLA_U16, },
+
+ [IEEE802154_ATTR_CAPABILITY] = { .type = NLA_U8, },
+ [IEEE802154_ATTR_REASON] = { .type = NLA_U8, },
+ [IEEE802154_ATTR_SCAN_TYPE] = { .type = NLA_U8, },
+ [IEEE802154_ATTR_CHANNELS] = { .type = NLA_U32, },
+ [IEEE802154_ATTR_DURATION] = { .type = NLA_U8, },
+ [IEEE802154_ATTR_ED_LIST] = { .len = 27 },
+ [IEEE802154_ATTR_CHANNEL_PAGE_LIST] = { .len = 32 * 4, },
+
+ [IEEE802154_ATTR_TXPOWER] = { .type = NLA_S8, },
+ [IEEE802154_ATTR_LBT_ENABLED] = { .type = NLA_U8, },
+ [IEEE802154_ATTR_CCA_MODE] = { .type = NLA_U8, },
+ [IEEE802154_ATTR_CCA_ED_LEVEL] = { .type = NLA_S32, },
+ [IEEE802154_ATTR_CSMA_RETRIES] = { .type = NLA_U8, },
+ [IEEE802154_ATTR_CSMA_MIN_BE] = { .type = NLA_U8, },
+ [IEEE802154_ATTR_CSMA_MAX_BE] = { .type = NLA_U8, },
+
+ [IEEE802154_ATTR_FRAME_RETRIES] = { .type = NLA_S8, },
+
+ [IEEE802154_ATTR_LLSEC_ENABLED] = { .type = NLA_U8, },
+ [IEEE802154_ATTR_LLSEC_SECLEVEL] = { .type = NLA_U8, },
+ [IEEE802154_ATTR_LLSEC_KEY_MODE] = { .type = NLA_U8, },
+ [IEEE802154_ATTR_LLSEC_KEY_SOURCE_SHORT] = { .type = NLA_U32, },
+ [IEEE802154_ATTR_LLSEC_KEY_SOURCE_EXTENDED] = { .type = NLA_HW_ADDR, },
+ [IEEE802154_ATTR_LLSEC_KEY_ID] = { .type = NLA_U8, },
+ [IEEE802154_ATTR_LLSEC_FRAME_COUNTER] = { .type = NLA_U32 },
+ [IEEE802154_ATTR_LLSEC_KEY_BYTES] = { .len = 16, },
+ [IEEE802154_ATTR_LLSEC_KEY_USAGE_FRAME_TYPES] = { .type = NLA_U8, },
+ [IEEE802154_ATTR_LLSEC_KEY_USAGE_COMMANDS] = { .len = 258 / 8 },
+ [IEEE802154_ATTR_LLSEC_FRAME_TYPE] = { .type = NLA_U8, },
+ [IEEE802154_ATTR_LLSEC_CMD_FRAME_ID] = { .type = NLA_U8, },
+ [IEEE802154_ATTR_LLSEC_SECLEVELS] = { .type = NLA_U8, },
+ [IEEE802154_ATTR_LLSEC_DEV_OVERRIDE] = { .type = NLA_U8, },
+ [IEEE802154_ATTR_LLSEC_DEV_KEY_MODE] = { .type = NLA_U8, },
+};
diff --git a/net/ieee802154/rdev-ops.h b/net/ieee802154/rdev-ops.h
new file mode 100644
index 000000000..598f5af49
--- /dev/null
+++ b/net/ieee802154/rdev-ops.h
@@ -0,0 +1,321 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __CFG802154_RDEV_OPS
+#define __CFG802154_RDEV_OPS
+
+#include <net/cfg802154.h>
+
+#include "core.h"
+#include "trace.h"
+
+static inline struct net_device *
+rdev_add_virtual_intf_deprecated(struct cfg802154_registered_device *rdev,
+ const char *name,
+ unsigned char name_assign_type,
+ int type)
+{
+ return rdev->ops->add_virtual_intf_deprecated(&rdev->wpan_phy, name,
+ name_assign_type, type);
+}
+
+static inline void
+rdev_del_virtual_intf_deprecated(struct cfg802154_registered_device *rdev,
+ struct net_device *dev)
+{
+ rdev->ops->del_virtual_intf_deprecated(&rdev->wpan_phy, dev);
+}
+
+static inline int
+rdev_suspend(struct cfg802154_registered_device *rdev)
+{
+ int ret;
+ trace_802154_rdev_suspend(&rdev->wpan_phy);
+ ret = rdev->ops->suspend(&rdev->wpan_phy);
+ trace_802154_rdev_return_int(&rdev->wpan_phy, ret);
+ return ret;
+}
+
+static inline int
+rdev_resume(struct cfg802154_registered_device *rdev)
+{
+ int ret;
+ trace_802154_rdev_resume(&rdev->wpan_phy);
+ ret = rdev->ops->resume(&rdev->wpan_phy);
+ trace_802154_rdev_return_int(&rdev->wpan_phy, ret);
+ return ret;
+}
+
+static inline int
+rdev_add_virtual_intf(struct cfg802154_registered_device *rdev, char *name,
+ unsigned char name_assign_type,
+ enum nl802154_iftype type, __le64 extended_addr)
+{
+ int ret;
+
+ trace_802154_rdev_add_virtual_intf(&rdev->wpan_phy, name, type,
+ extended_addr);
+ ret = rdev->ops->add_virtual_intf(&rdev->wpan_phy, name,
+ name_assign_type, type,
+ extended_addr);
+ trace_802154_rdev_return_int(&rdev->wpan_phy, ret);
+ return ret;
+}
+
+static inline int
+rdev_del_virtual_intf(struct cfg802154_registered_device *rdev,
+ struct wpan_dev *wpan_dev)
+{
+ int ret;
+
+ trace_802154_rdev_del_virtual_intf(&rdev->wpan_phy, wpan_dev);
+ ret = rdev->ops->del_virtual_intf(&rdev->wpan_phy, wpan_dev);
+ trace_802154_rdev_return_int(&rdev->wpan_phy, ret);
+ return ret;
+}
+
+static inline int
+rdev_set_channel(struct cfg802154_registered_device *rdev, u8 page, u8 channel)
+{
+ int ret;
+
+ trace_802154_rdev_set_channel(&rdev->wpan_phy, page, channel);
+ ret = rdev->ops->set_channel(&rdev->wpan_phy, page, channel);
+ trace_802154_rdev_return_int(&rdev->wpan_phy, ret);
+ return ret;
+}
+
+static inline int
+rdev_set_cca_mode(struct cfg802154_registered_device *rdev,
+ const struct wpan_phy_cca *cca)
+{
+ int ret;
+
+ trace_802154_rdev_set_cca_mode(&rdev->wpan_phy, cca);
+ ret = rdev->ops->set_cca_mode(&rdev->wpan_phy, cca);
+ trace_802154_rdev_return_int(&rdev->wpan_phy, ret);
+ return ret;
+}
+
+static inline int
+rdev_set_cca_ed_level(struct cfg802154_registered_device *rdev, s32 ed_level)
+{
+ int ret;
+
+ trace_802154_rdev_set_cca_ed_level(&rdev->wpan_phy, ed_level);
+ ret = rdev->ops->set_cca_ed_level(&rdev->wpan_phy, ed_level);
+ trace_802154_rdev_return_int(&rdev->wpan_phy, ret);
+ return ret;
+}
+
+static inline int
+rdev_set_tx_power(struct cfg802154_registered_device *rdev,
+ s32 power)
+{
+ int ret;
+
+ trace_802154_rdev_set_tx_power(&rdev->wpan_phy, power);
+ ret = rdev->ops->set_tx_power(&rdev->wpan_phy, power);
+ trace_802154_rdev_return_int(&rdev->wpan_phy, ret);
+ return ret;
+}
+
+static inline int
+rdev_set_pan_id(struct cfg802154_registered_device *rdev,
+ struct wpan_dev *wpan_dev, __le16 pan_id)
+{
+ int ret;
+
+ trace_802154_rdev_set_pan_id(&rdev->wpan_phy, wpan_dev, pan_id);
+ ret = rdev->ops->set_pan_id(&rdev->wpan_phy, wpan_dev, pan_id);
+ trace_802154_rdev_return_int(&rdev->wpan_phy, ret);
+ return ret;
+}
+
+static inline int
+rdev_set_short_addr(struct cfg802154_registered_device *rdev,
+ struct wpan_dev *wpan_dev, __le16 short_addr)
+{
+ int ret;
+
+ trace_802154_rdev_set_short_addr(&rdev->wpan_phy, wpan_dev, short_addr);
+ ret = rdev->ops->set_short_addr(&rdev->wpan_phy, wpan_dev, short_addr);
+ trace_802154_rdev_return_int(&rdev->wpan_phy, ret);
+ return ret;
+}
+
+static inline int
+rdev_set_backoff_exponent(struct cfg802154_registered_device *rdev,
+ struct wpan_dev *wpan_dev, u8 min_be, u8 max_be)
+{
+ int ret;
+
+ trace_802154_rdev_set_backoff_exponent(&rdev->wpan_phy, wpan_dev,
+ min_be, max_be);
+ ret = rdev->ops->set_backoff_exponent(&rdev->wpan_phy, wpan_dev,
+ min_be, max_be);
+ trace_802154_rdev_return_int(&rdev->wpan_phy, ret);
+ return ret;
+}
+
+static inline int
+rdev_set_max_csma_backoffs(struct cfg802154_registered_device *rdev,
+ struct wpan_dev *wpan_dev, u8 max_csma_backoffs)
+{
+ int ret;
+
+ trace_802154_rdev_set_csma_backoffs(&rdev->wpan_phy, wpan_dev,
+ max_csma_backoffs);
+ ret = rdev->ops->set_max_csma_backoffs(&rdev->wpan_phy, wpan_dev,
+ max_csma_backoffs);
+ trace_802154_rdev_return_int(&rdev->wpan_phy, ret);
+ return ret;
+}
+
+static inline int
+rdev_set_max_frame_retries(struct cfg802154_registered_device *rdev,
+ struct wpan_dev *wpan_dev, s8 max_frame_retries)
+{
+ int ret;
+
+ trace_802154_rdev_set_max_frame_retries(&rdev->wpan_phy, wpan_dev,
+ max_frame_retries);
+ ret = rdev->ops->set_max_frame_retries(&rdev->wpan_phy, wpan_dev,
+ max_frame_retries);
+ trace_802154_rdev_return_int(&rdev->wpan_phy, ret);
+ return ret;
+}
+
+static inline int
+rdev_set_lbt_mode(struct cfg802154_registered_device *rdev,
+ struct wpan_dev *wpan_dev, bool mode)
+{
+ int ret;
+
+ trace_802154_rdev_set_lbt_mode(&rdev->wpan_phy, wpan_dev, mode);
+ ret = rdev->ops->set_lbt_mode(&rdev->wpan_phy, wpan_dev, mode);
+ trace_802154_rdev_return_int(&rdev->wpan_phy, ret);
+ return ret;
+}
+
+static inline int
+rdev_set_ackreq_default(struct cfg802154_registered_device *rdev,
+ struct wpan_dev *wpan_dev, bool ackreq)
+{
+ int ret;
+
+ trace_802154_rdev_set_ackreq_default(&rdev->wpan_phy, wpan_dev,
+ ackreq);
+ ret = rdev->ops->set_ackreq_default(&rdev->wpan_phy, wpan_dev, ackreq);
+ trace_802154_rdev_return_int(&rdev->wpan_phy, ret);
+ return ret;
+}
+
+#ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL
+/* TODO this is already a nl802154, so move into ieee802154 */
+static inline void
+rdev_get_llsec_table(struct cfg802154_registered_device *rdev,
+ struct wpan_dev *wpan_dev,
+ struct ieee802154_llsec_table **table)
+{
+ rdev->ops->get_llsec_table(&rdev->wpan_phy, wpan_dev, table);
+}
+
+static inline void
+rdev_lock_llsec_table(struct cfg802154_registered_device *rdev,
+ struct wpan_dev *wpan_dev)
+{
+ rdev->ops->lock_llsec_table(&rdev->wpan_phy, wpan_dev);
+}
+
+static inline void
+rdev_unlock_llsec_table(struct cfg802154_registered_device *rdev,
+ struct wpan_dev *wpan_dev)
+{
+ rdev->ops->unlock_llsec_table(&rdev->wpan_phy, wpan_dev);
+}
+
+static inline int
+rdev_get_llsec_params(struct cfg802154_registered_device *rdev,
+ struct wpan_dev *wpan_dev,
+ struct ieee802154_llsec_params *params)
+{
+ return rdev->ops->get_llsec_params(&rdev->wpan_phy, wpan_dev, params);
+}
+
+static inline int
+rdev_set_llsec_params(struct cfg802154_registered_device *rdev,
+ struct wpan_dev *wpan_dev,
+ const struct ieee802154_llsec_params *params,
+ u32 changed)
+{
+ return rdev->ops->set_llsec_params(&rdev->wpan_phy, wpan_dev, params,
+ changed);
+}
+
+static inline int
+rdev_add_llsec_key(struct cfg802154_registered_device *rdev,
+ struct wpan_dev *wpan_dev,
+ const struct ieee802154_llsec_key_id *id,
+ const struct ieee802154_llsec_key *key)
+{
+ return rdev->ops->add_llsec_key(&rdev->wpan_phy, wpan_dev, id, key);
+}
+
+static inline int
+rdev_del_llsec_key(struct cfg802154_registered_device *rdev,
+ struct wpan_dev *wpan_dev,
+ const struct ieee802154_llsec_key_id *id)
+{
+ return rdev->ops->del_llsec_key(&rdev->wpan_phy, wpan_dev, id);
+}
+
+static inline int
+rdev_add_seclevel(struct cfg802154_registered_device *rdev,
+ struct wpan_dev *wpan_dev,
+ const struct ieee802154_llsec_seclevel *sl)
+{
+ return rdev->ops->add_seclevel(&rdev->wpan_phy, wpan_dev, sl);
+}
+
+static inline int
+rdev_del_seclevel(struct cfg802154_registered_device *rdev,
+ struct wpan_dev *wpan_dev,
+ const struct ieee802154_llsec_seclevel *sl)
+{
+ return rdev->ops->del_seclevel(&rdev->wpan_phy, wpan_dev, sl);
+}
+
+static inline int
+rdev_add_device(struct cfg802154_registered_device *rdev,
+ struct wpan_dev *wpan_dev,
+ const struct ieee802154_llsec_device *dev_desc)
+{
+ return rdev->ops->add_device(&rdev->wpan_phy, wpan_dev, dev_desc);
+}
+
+static inline int
+rdev_del_device(struct cfg802154_registered_device *rdev,
+ struct wpan_dev *wpan_dev, __le64 extended_addr)
+{
+ return rdev->ops->del_device(&rdev->wpan_phy, wpan_dev, extended_addr);
+}
+
+static inline int
+rdev_add_devkey(struct cfg802154_registered_device *rdev,
+ struct wpan_dev *wpan_dev, __le64 extended_addr,
+ const struct ieee802154_llsec_device_key *devkey)
+{
+ return rdev->ops->add_devkey(&rdev->wpan_phy, wpan_dev, extended_addr,
+ devkey);
+}
+
+static inline int
+rdev_del_devkey(struct cfg802154_registered_device *rdev,
+ struct wpan_dev *wpan_dev, __le64 extended_addr,
+ const struct ieee802154_llsec_device_key *devkey)
+{
+ return rdev->ops->del_devkey(&rdev->wpan_phy, wpan_dev, extended_addr,
+ devkey);
+}
+#endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */
+
+#endif /* __CFG802154_RDEV_OPS */
diff --git a/net/ieee802154/socket.c b/net/ieee802154/socket.c
new file mode 100644
index 000000000..1fa2fe041
--- /dev/null
+++ b/net/ieee802154/socket.c
@@ -0,0 +1,1143 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * IEEE802154.4 socket interface
+ *
+ * Copyright 2007, 2008 Siemens AG
+ *
+ * Written by:
+ * Sergey Lapin <slapin@ossfans.org>
+ * Maxim Gorbachyov <maxim.gorbachev@siemens.com>
+ */
+
+#include <linux/net.h>
+#include <linux/capability.h>
+#include <linux/module.h>
+#include <linux/if_arp.h>
+#include <linux/if.h>
+#include <linux/termios.h> /* For TIOCOUTQ/INQ */
+#include <linux/list.h>
+#include <linux/slab.h>
+#include <linux/socket.h>
+#include <net/datalink.h>
+#include <net/psnap.h>
+#include <net/sock.h>
+#include <net/tcp_states.h>
+#include <net/route.h>
+
+#include <net/af_ieee802154.h>
+#include <net/ieee802154_netdev.h>
+
+/* Utility function for families */
+static struct net_device*
+ieee802154_get_dev(struct net *net, const struct ieee802154_addr *addr)
+{
+ struct net_device *dev = NULL;
+ struct net_device *tmp;
+ __le16 pan_id, short_addr;
+ u8 hwaddr[IEEE802154_ADDR_LEN];
+
+ switch (addr->mode) {
+ case IEEE802154_ADDR_LONG:
+ ieee802154_devaddr_to_raw(hwaddr, addr->extended_addr);
+ rcu_read_lock();
+ dev = dev_getbyhwaddr_rcu(net, ARPHRD_IEEE802154, hwaddr);
+ dev_hold(dev);
+ rcu_read_unlock();
+ break;
+ case IEEE802154_ADDR_SHORT:
+ if (addr->pan_id == cpu_to_le16(IEEE802154_PANID_BROADCAST) ||
+ addr->short_addr == cpu_to_le16(IEEE802154_ADDR_UNDEF) ||
+ addr->short_addr == cpu_to_le16(IEEE802154_ADDR_BROADCAST))
+ break;
+
+ rtnl_lock();
+
+ for_each_netdev(net, tmp) {
+ if (tmp->type != ARPHRD_IEEE802154)
+ continue;
+
+ pan_id = tmp->ieee802154_ptr->pan_id;
+ short_addr = tmp->ieee802154_ptr->short_addr;
+ if (pan_id == addr->pan_id &&
+ short_addr == addr->short_addr) {
+ dev = tmp;
+ dev_hold(dev);
+ break;
+ }
+ }
+
+ rtnl_unlock();
+ break;
+ default:
+ pr_warn("Unsupported ieee802154 address type: %d\n",
+ addr->mode);
+ break;
+ }
+
+ return dev;
+}
+
+static int ieee802154_sock_release(struct socket *sock)
+{
+ struct sock *sk = sock->sk;
+
+ if (sk) {
+ sock->sk = NULL;
+ sk->sk_prot->close(sk, 0);
+ }
+ return 0;
+}
+
+static int ieee802154_sock_sendmsg(struct socket *sock, struct msghdr *msg,
+ size_t len)
+{
+ struct sock *sk = sock->sk;
+
+ return sk->sk_prot->sendmsg(sk, msg, len);
+}
+
+static int ieee802154_sock_bind(struct socket *sock, struct sockaddr *uaddr,
+ int addr_len)
+{
+ struct sock *sk = sock->sk;
+
+ if (sk->sk_prot->bind)
+ return sk->sk_prot->bind(sk, uaddr, addr_len);
+
+ return sock_no_bind(sock, uaddr, addr_len);
+}
+
+static int ieee802154_sock_connect(struct socket *sock, struct sockaddr *uaddr,
+ int addr_len, int flags)
+{
+ struct sock *sk = sock->sk;
+
+ if (addr_len < sizeof(uaddr->sa_family))
+ return -EINVAL;
+
+ if (uaddr->sa_family == AF_UNSPEC)
+ return sk->sk_prot->disconnect(sk, flags);
+
+ return sk->sk_prot->connect(sk, uaddr, addr_len);
+}
+
+static int ieee802154_dev_ioctl(struct sock *sk, struct ifreq __user *arg,
+ unsigned int cmd)
+{
+ struct ifreq ifr;
+ int ret = -ENOIOCTLCMD;
+ struct net_device *dev;
+
+ if (get_user_ifreq(&ifr, NULL, arg))
+ return -EFAULT;
+
+ ifr.ifr_name[IFNAMSIZ-1] = 0;
+
+ dev_load(sock_net(sk), ifr.ifr_name);
+ dev = dev_get_by_name(sock_net(sk), ifr.ifr_name);
+
+ if (!dev)
+ return -ENODEV;
+
+ if (dev->type == ARPHRD_IEEE802154 && dev->netdev_ops->ndo_do_ioctl)
+ ret = dev->netdev_ops->ndo_do_ioctl(dev, &ifr, cmd);
+
+ if (!ret && put_user_ifreq(&ifr, arg))
+ ret = -EFAULT;
+ dev_put(dev);
+
+ return ret;
+}
+
+static int ieee802154_sock_ioctl(struct socket *sock, unsigned int cmd,
+ unsigned long arg)
+{
+ struct sock *sk = sock->sk;
+
+ switch (cmd) {
+ case SIOCGIFADDR:
+ case SIOCSIFADDR:
+ return ieee802154_dev_ioctl(sk, (struct ifreq __user *)arg,
+ cmd);
+ default:
+ if (!sk->sk_prot->ioctl)
+ return -ENOIOCTLCMD;
+ return sk->sk_prot->ioctl(sk, cmd, arg);
+ }
+}
+
+/* RAW Sockets (802.15.4 created in userspace) */
+static HLIST_HEAD(raw_head);
+static DEFINE_RWLOCK(raw_lock);
+
+static int raw_hash(struct sock *sk)
+{
+ write_lock_bh(&raw_lock);
+ sk_add_node(sk, &raw_head);
+ write_unlock_bh(&raw_lock);
+ sock_prot_inuse_add(sock_net(sk), sk->sk_prot, 1);
+
+ return 0;
+}
+
+static void raw_unhash(struct sock *sk)
+{
+ write_lock_bh(&raw_lock);
+ if (sk_del_node_init(sk))
+ sock_prot_inuse_add(sock_net(sk), sk->sk_prot, -1);
+ write_unlock_bh(&raw_lock);
+}
+
+static void raw_close(struct sock *sk, long timeout)
+{
+ sk_common_release(sk);
+}
+
+static int raw_bind(struct sock *sk, struct sockaddr *_uaddr, int len)
+{
+ struct ieee802154_addr addr;
+ struct sockaddr_ieee802154 *uaddr = (struct sockaddr_ieee802154 *)_uaddr;
+ int err = 0;
+ struct net_device *dev = NULL;
+
+ err = ieee802154_sockaddr_check_size(uaddr, len);
+ if (err < 0)
+ return err;
+
+ uaddr = (struct sockaddr_ieee802154 *)_uaddr;
+ if (uaddr->family != AF_IEEE802154)
+ return -EINVAL;
+
+ lock_sock(sk);
+
+ ieee802154_addr_from_sa(&addr, &uaddr->addr);
+ dev = ieee802154_get_dev(sock_net(sk), &addr);
+ if (!dev) {
+ err = -ENODEV;
+ goto out;
+ }
+
+ sk->sk_bound_dev_if = dev->ifindex;
+ sk_dst_reset(sk);
+
+ dev_put(dev);
+out:
+ release_sock(sk);
+
+ return err;
+}
+
+static int raw_connect(struct sock *sk, struct sockaddr *uaddr,
+ int addr_len)
+{
+ return -ENOTSUPP;
+}
+
+static int raw_disconnect(struct sock *sk, int flags)
+{
+ return 0;
+}
+
+static int raw_sendmsg(struct sock *sk, struct msghdr *msg, size_t size)
+{
+ struct net_device *dev;
+ unsigned int mtu;
+ struct sk_buff *skb;
+ int hlen, tlen;
+ int err;
+
+ if (msg->msg_flags & MSG_OOB) {
+ pr_debug("msg->msg_flags = 0x%x\n", msg->msg_flags);
+ return -EOPNOTSUPP;
+ }
+
+ lock_sock(sk);
+ if (!sk->sk_bound_dev_if)
+ dev = dev_getfirstbyhwtype(sock_net(sk), ARPHRD_IEEE802154);
+ else
+ dev = dev_get_by_index(sock_net(sk), sk->sk_bound_dev_if);
+ release_sock(sk);
+
+ if (!dev) {
+ pr_debug("no dev\n");
+ err = -ENXIO;
+ goto out;
+ }
+
+ mtu = IEEE802154_MTU;
+ pr_debug("name = %s, mtu = %u\n", dev->name, mtu);
+
+ if (size > mtu) {
+ pr_debug("size = %zu, mtu = %u\n", size, mtu);
+ err = -EMSGSIZE;
+ goto out_dev;
+ }
+ if (!size) {
+ err = 0;
+ goto out_dev;
+ }
+
+ hlen = LL_RESERVED_SPACE(dev);
+ tlen = dev->needed_tailroom;
+ skb = sock_alloc_send_skb(sk, hlen + tlen + size,
+ msg->msg_flags & MSG_DONTWAIT, &err);
+ if (!skb)
+ goto out_dev;
+
+ skb_reserve(skb, hlen);
+
+ skb_reset_mac_header(skb);
+ skb_reset_network_header(skb);
+
+ err = memcpy_from_msg(skb_put(skb, size), msg, size);
+ if (err < 0)
+ goto out_skb;
+
+ skb->dev = dev;
+ skb->protocol = htons(ETH_P_IEEE802154);
+
+ err = dev_queue_xmit(skb);
+ if (err > 0)
+ err = net_xmit_errno(err);
+
+ dev_put(dev);
+
+ return err ?: size;
+
+out_skb:
+ kfree_skb(skb);
+out_dev:
+ dev_put(dev);
+out:
+ return err;
+}
+
+static int raw_recvmsg(struct sock *sk, struct msghdr *msg, size_t len,
+ int flags, int *addr_len)
+{
+ size_t copied = 0;
+ int err = -EOPNOTSUPP;
+ struct sk_buff *skb;
+
+ skb = skb_recv_datagram(sk, flags, &err);
+ if (!skb)
+ goto out;
+
+ copied = skb->len;
+ if (len < copied) {
+ msg->msg_flags |= MSG_TRUNC;
+ copied = len;
+ }
+
+ err = skb_copy_datagram_msg(skb, 0, msg, copied);
+ if (err)
+ goto done;
+
+ sock_recv_cmsgs(msg, sk, skb);
+
+ if (flags & MSG_TRUNC)
+ copied = skb->len;
+done:
+ skb_free_datagram(sk, skb);
+out:
+ if (err)
+ return err;
+ return copied;
+}
+
+static int raw_rcv_skb(struct sock *sk, struct sk_buff *skb)
+{
+ skb = skb_share_check(skb, GFP_ATOMIC);
+ if (!skb)
+ return NET_RX_DROP;
+
+ if (sock_queue_rcv_skb(sk, skb) < 0) {
+ kfree_skb(skb);
+ return NET_RX_DROP;
+ }
+
+ return NET_RX_SUCCESS;
+}
+
+static void ieee802154_raw_deliver(struct net_device *dev, struct sk_buff *skb)
+{
+ struct sock *sk;
+
+ read_lock(&raw_lock);
+ sk_for_each(sk, &raw_head) {
+ bh_lock_sock(sk);
+ if (!sk->sk_bound_dev_if ||
+ sk->sk_bound_dev_if == dev->ifindex) {
+ struct sk_buff *clone;
+
+ clone = skb_clone(skb, GFP_ATOMIC);
+ if (clone)
+ raw_rcv_skb(sk, clone);
+ }
+ bh_unlock_sock(sk);
+ }
+ read_unlock(&raw_lock);
+}
+
+static int raw_getsockopt(struct sock *sk, int level, int optname,
+ char __user *optval, int __user *optlen)
+{
+ return -EOPNOTSUPP;
+}
+
+static int raw_setsockopt(struct sock *sk, int level, int optname,
+ sockptr_t optval, unsigned int optlen)
+{
+ return -EOPNOTSUPP;
+}
+
+static struct proto ieee802154_raw_prot = {
+ .name = "IEEE-802.15.4-RAW",
+ .owner = THIS_MODULE,
+ .obj_size = sizeof(struct sock),
+ .close = raw_close,
+ .bind = raw_bind,
+ .sendmsg = raw_sendmsg,
+ .recvmsg = raw_recvmsg,
+ .hash = raw_hash,
+ .unhash = raw_unhash,
+ .connect = raw_connect,
+ .disconnect = raw_disconnect,
+ .getsockopt = raw_getsockopt,
+ .setsockopt = raw_setsockopt,
+};
+
+static const struct proto_ops ieee802154_raw_ops = {
+ .family = PF_IEEE802154,
+ .owner = THIS_MODULE,
+ .release = ieee802154_sock_release,
+ .bind = ieee802154_sock_bind,
+ .connect = ieee802154_sock_connect,
+ .socketpair = sock_no_socketpair,
+ .accept = sock_no_accept,
+ .getname = sock_no_getname,
+ .poll = datagram_poll,
+ .ioctl = ieee802154_sock_ioctl,
+ .gettstamp = sock_gettstamp,
+ .listen = sock_no_listen,
+ .shutdown = sock_no_shutdown,
+ .setsockopt = sock_common_setsockopt,
+ .getsockopt = sock_common_getsockopt,
+ .sendmsg = ieee802154_sock_sendmsg,
+ .recvmsg = sock_common_recvmsg,
+ .mmap = sock_no_mmap,
+ .sendpage = sock_no_sendpage,
+};
+
+/* DGRAM Sockets (802.15.4 dataframes) */
+static HLIST_HEAD(dgram_head);
+static DEFINE_RWLOCK(dgram_lock);
+
+struct dgram_sock {
+ struct sock sk;
+
+ struct ieee802154_addr src_addr;
+ struct ieee802154_addr dst_addr;
+
+ unsigned int bound:1;
+ unsigned int connected:1;
+ unsigned int want_ack:1;
+ unsigned int want_lqi:1;
+ unsigned int secen:1;
+ unsigned int secen_override:1;
+ unsigned int seclevel:3;
+ unsigned int seclevel_override:1;
+};
+
+static inline struct dgram_sock *dgram_sk(const struct sock *sk)
+{
+ return container_of(sk, struct dgram_sock, sk);
+}
+
+static int dgram_hash(struct sock *sk)
+{
+ write_lock_bh(&dgram_lock);
+ sk_add_node(sk, &dgram_head);
+ write_unlock_bh(&dgram_lock);
+ sock_prot_inuse_add(sock_net(sk), sk->sk_prot, 1);
+
+ return 0;
+}
+
+static void dgram_unhash(struct sock *sk)
+{
+ write_lock_bh(&dgram_lock);
+ if (sk_del_node_init(sk))
+ sock_prot_inuse_add(sock_net(sk), sk->sk_prot, -1);
+ write_unlock_bh(&dgram_lock);
+}
+
+static int dgram_init(struct sock *sk)
+{
+ struct dgram_sock *ro = dgram_sk(sk);
+
+ ro->want_ack = 1;
+ ro->want_lqi = 0;
+ return 0;
+}
+
+static void dgram_close(struct sock *sk, long timeout)
+{
+ sk_common_release(sk);
+}
+
+static int dgram_bind(struct sock *sk, struct sockaddr *uaddr, int len)
+{
+ struct sockaddr_ieee802154 *addr = (struct sockaddr_ieee802154 *)uaddr;
+ struct ieee802154_addr haddr;
+ struct dgram_sock *ro = dgram_sk(sk);
+ int err = -EINVAL;
+ struct net_device *dev;
+
+ lock_sock(sk);
+
+ ro->bound = 0;
+
+ err = ieee802154_sockaddr_check_size(addr, len);
+ if (err < 0)
+ goto out;
+
+ if (addr->family != AF_IEEE802154) {
+ err = -EINVAL;
+ goto out;
+ }
+
+ ieee802154_addr_from_sa(&haddr, &addr->addr);
+ dev = ieee802154_get_dev(sock_net(sk), &haddr);
+ if (!dev) {
+ err = -ENODEV;
+ goto out;
+ }
+
+ if (dev->type != ARPHRD_IEEE802154) {
+ err = -ENODEV;
+ goto out_put;
+ }
+
+ ro->src_addr = haddr;
+
+ ro->bound = 1;
+ err = 0;
+out_put:
+ dev_put(dev);
+out:
+ release_sock(sk);
+
+ return err;
+}
+
+static int dgram_ioctl(struct sock *sk, int cmd, unsigned long arg)
+{
+ switch (cmd) {
+ case SIOCOUTQ:
+ {
+ int amount = sk_wmem_alloc_get(sk);
+
+ return put_user(amount, (int __user *)arg);
+ }
+
+ case SIOCINQ:
+ {
+ struct sk_buff *skb;
+ unsigned long amount;
+
+ amount = 0;
+ spin_lock_bh(&sk->sk_receive_queue.lock);
+ skb = skb_peek(&sk->sk_receive_queue);
+ if (skb) {
+ /* We will only return the amount
+ * of this packet since that is all
+ * that will be read.
+ */
+ amount = skb->len - ieee802154_hdr_length(skb);
+ }
+ spin_unlock_bh(&sk->sk_receive_queue.lock);
+ return put_user(amount, (int __user *)arg);
+ }
+ }
+
+ return -ENOIOCTLCMD;
+}
+
+/* FIXME: autobind */
+static int dgram_connect(struct sock *sk, struct sockaddr *uaddr,
+ int len)
+{
+ struct sockaddr_ieee802154 *addr = (struct sockaddr_ieee802154 *)uaddr;
+ struct dgram_sock *ro = dgram_sk(sk);
+ int err = 0;
+
+ err = ieee802154_sockaddr_check_size(addr, len);
+ if (err < 0)
+ return err;
+
+ if (addr->family != AF_IEEE802154)
+ return -EINVAL;
+
+ lock_sock(sk);
+
+ if (!ro->bound) {
+ err = -ENETUNREACH;
+ goto out;
+ }
+
+ ieee802154_addr_from_sa(&ro->dst_addr, &addr->addr);
+ ro->connected = 1;
+
+out:
+ release_sock(sk);
+ return err;
+}
+
+static int dgram_disconnect(struct sock *sk, int flags)
+{
+ struct dgram_sock *ro = dgram_sk(sk);
+
+ lock_sock(sk);
+ ro->connected = 0;
+ release_sock(sk);
+
+ return 0;
+}
+
+static int dgram_sendmsg(struct sock *sk, struct msghdr *msg, size_t size)
+{
+ struct net_device *dev;
+ unsigned int mtu;
+ struct sk_buff *skb;
+ struct ieee802154_mac_cb *cb;
+ struct dgram_sock *ro = dgram_sk(sk);
+ struct ieee802154_addr dst_addr;
+ DECLARE_SOCKADDR(struct sockaddr_ieee802154*, daddr, msg->msg_name);
+ int hlen, tlen;
+ int err;
+
+ if (msg->msg_flags & MSG_OOB) {
+ pr_debug("msg->msg_flags = 0x%x\n", msg->msg_flags);
+ return -EOPNOTSUPP;
+ }
+
+ if (msg->msg_name) {
+ if (ro->connected)
+ return -EISCONN;
+ if (msg->msg_namelen < IEEE802154_MIN_NAMELEN)
+ return -EINVAL;
+ err = ieee802154_sockaddr_check_size(daddr, msg->msg_namelen);
+ if (err < 0)
+ return err;
+ ieee802154_addr_from_sa(&dst_addr, &daddr->addr);
+ } else {
+ if (!ro->connected)
+ return -EDESTADDRREQ;
+ dst_addr = ro->dst_addr;
+ }
+
+ if (!ro->bound)
+ dev = dev_getfirstbyhwtype(sock_net(sk), ARPHRD_IEEE802154);
+ else
+ dev = ieee802154_get_dev(sock_net(sk), &ro->src_addr);
+
+ if (!dev) {
+ pr_debug("no dev\n");
+ err = -ENXIO;
+ goto out;
+ }
+ mtu = IEEE802154_MTU;
+ pr_debug("name = %s, mtu = %u\n", dev->name, mtu);
+
+ if (size > mtu) {
+ pr_debug("size = %zu, mtu = %u\n", size, mtu);
+ err = -EMSGSIZE;
+ goto out_dev;
+ }
+
+ hlen = LL_RESERVED_SPACE(dev);
+ tlen = dev->needed_tailroom;
+ skb = sock_alloc_send_skb(sk, hlen + tlen + size,
+ msg->msg_flags & MSG_DONTWAIT,
+ &err);
+ if (!skb)
+ goto out_dev;
+
+ skb_reserve(skb, hlen);
+
+ skb_reset_network_header(skb);
+
+ cb = mac_cb_init(skb);
+ cb->type = IEEE802154_FC_TYPE_DATA;
+ cb->ackreq = ro->want_ack;
+ cb->secen = ro->secen;
+ cb->secen_override = ro->secen_override;
+ cb->seclevel = ro->seclevel;
+ cb->seclevel_override = ro->seclevel_override;
+
+ err = wpan_dev_hard_header(skb, dev, &dst_addr,
+ ro->bound ? &ro->src_addr : NULL, size);
+ if (err < 0)
+ goto out_skb;
+
+ err = memcpy_from_msg(skb_put(skb, size), msg, size);
+ if (err < 0)
+ goto out_skb;
+
+ skb->dev = dev;
+ skb->protocol = htons(ETH_P_IEEE802154);
+
+ err = dev_queue_xmit(skb);
+ if (err > 0)
+ err = net_xmit_errno(err);
+
+ dev_put(dev);
+
+ return err ?: size;
+
+out_skb:
+ kfree_skb(skb);
+out_dev:
+ dev_put(dev);
+out:
+ return err;
+}
+
+static int dgram_recvmsg(struct sock *sk, struct msghdr *msg, size_t len,
+ int flags, int *addr_len)
+{
+ size_t copied = 0;
+ int err = -EOPNOTSUPP;
+ struct sk_buff *skb;
+ struct dgram_sock *ro = dgram_sk(sk);
+ DECLARE_SOCKADDR(struct sockaddr_ieee802154 *, saddr, msg->msg_name);
+
+ skb = skb_recv_datagram(sk, flags, &err);
+ if (!skb)
+ goto out;
+
+ copied = skb->len;
+ if (len < copied) {
+ msg->msg_flags |= MSG_TRUNC;
+ copied = len;
+ }
+
+ /* FIXME: skip headers if necessary ?! */
+ err = skb_copy_datagram_msg(skb, 0, msg, copied);
+ if (err)
+ goto done;
+
+ sock_recv_cmsgs(msg, sk, skb);
+
+ if (saddr) {
+ /* Clear the implicit padding in struct sockaddr_ieee802154
+ * (16 bits between 'family' and 'addr') and in struct
+ * ieee802154_addr_sa (16 bits at the end of the structure).
+ */
+ memset(saddr, 0, sizeof(*saddr));
+
+ saddr->family = AF_IEEE802154;
+ ieee802154_addr_to_sa(&saddr->addr, &mac_cb(skb)->source);
+ *addr_len = sizeof(*saddr);
+ }
+
+ if (ro->want_lqi) {
+ err = put_cmsg(msg, SOL_IEEE802154, WPAN_WANTLQI,
+ sizeof(uint8_t), &(mac_cb(skb)->lqi));
+ if (err)
+ goto done;
+ }
+
+ if (flags & MSG_TRUNC)
+ copied = skb->len;
+done:
+ skb_free_datagram(sk, skb);
+out:
+ if (err)
+ return err;
+ return copied;
+}
+
+static int dgram_rcv_skb(struct sock *sk, struct sk_buff *skb)
+{
+ skb = skb_share_check(skb, GFP_ATOMIC);
+ if (!skb)
+ return NET_RX_DROP;
+
+ if (sock_queue_rcv_skb(sk, skb) < 0) {
+ kfree_skb(skb);
+ return NET_RX_DROP;
+ }
+
+ return NET_RX_SUCCESS;
+}
+
+static inline bool
+ieee802154_match_sock(__le64 hw_addr, __le16 pan_id, __le16 short_addr,
+ struct dgram_sock *ro)
+{
+ if (!ro->bound)
+ return true;
+
+ if (ro->src_addr.mode == IEEE802154_ADDR_LONG &&
+ hw_addr == ro->src_addr.extended_addr)
+ return true;
+
+ if (ro->src_addr.mode == IEEE802154_ADDR_SHORT &&
+ pan_id == ro->src_addr.pan_id &&
+ short_addr == ro->src_addr.short_addr)
+ return true;
+
+ return false;
+}
+
+static int ieee802154_dgram_deliver(struct net_device *dev, struct sk_buff *skb)
+{
+ struct sock *sk, *prev = NULL;
+ int ret = NET_RX_SUCCESS;
+ __le16 pan_id, short_addr;
+ __le64 hw_addr;
+
+ /* Data frame processing */
+ BUG_ON(dev->type != ARPHRD_IEEE802154);
+
+ pan_id = dev->ieee802154_ptr->pan_id;
+ short_addr = dev->ieee802154_ptr->short_addr;
+ hw_addr = dev->ieee802154_ptr->extended_addr;
+
+ read_lock(&dgram_lock);
+ sk_for_each(sk, &dgram_head) {
+ if (ieee802154_match_sock(hw_addr, pan_id, short_addr,
+ dgram_sk(sk))) {
+ if (prev) {
+ struct sk_buff *clone;
+
+ clone = skb_clone(skb, GFP_ATOMIC);
+ if (clone)
+ dgram_rcv_skb(prev, clone);
+ }
+
+ prev = sk;
+ }
+ }
+
+ if (prev) {
+ dgram_rcv_skb(prev, skb);
+ } else {
+ kfree_skb(skb);
+ ret = NET_RX_DROP;
+ }
+ read_unlock(&dgram_lock);
+
+ return ret;
+}
+
+static int dgram_getsockopt(struct sock *sk, int level, int optname,
+ char __user *optval, int __user *optlen)
+{
+ struct dgram_sock *ro = dgram_sk(sk);
+
+ int val, len;
+
+ if (level != SOL_IEEE802154)
+ return -EOPNOTSUPP;
+
+ if (get_user(len, optlen))
+ return -EFAULT;
+
+ len = min_t(unsigned int, len, sizeof(int));
+
+ switch (optname) {
+ case WPAN_WANTACK:
+ val = ro->want_ack;
+ break;
+ case WPAN_WANTLQI:
+ val = ro->want_lqi;
+ break;
+ case WPAN_SECURITY:
+ if (!ro->secen_override)
+ val = WPAN_SECURITY_DEFAULT;
+ else if (ro->secen)
+ val = WPAN_SECURITY_ON;
+ else
+ val = WPAN_SECURITY_OFF;
+ break;
+ case WPAN_SECURITY_LEVEL:
+ if (!ro->seclevel_override)
+ val = WPAN_SECURITY_LEVEL_DEFAULT;
+ else
+ val = ro->seclevel;
+ break;
+ default:
+ return -ENOPROTOOPT;
+ }
+
+ if (put_user(len, optlen))
+ return -EFAULT;
+ if (copy_to_user(optval, &val, len))
+ return -EFAULT;
+ return 0;
+}
+
+static int dgram_setsockopt(struct sock *sk, int level, int optname,
+ sockptr_t optval, unsigned int optlen)
+{
+ struct dgram_sock *ro = dgram_sk(sk);
+ struct net *net = sock_net(sk);
+ int val;
+ int err = 0;
+
+ if (optlen < sizeof(int))
+ return -EINVAL;
+
+ if (copy_from_sockptr(&val, optval, sizeof(int)))
+ return -EFAULT;
+
+ lock_sock(sk);
+
+ switch (optname) {
+ case WPAN_WANTACK:
+ ro->want_ack = !!val;
+ break;
+ case WPAN_WANTLQI:
+ ro->want_lqi = !!val;
+ break;
+ case WPAN_SECURITY:
+ if (!ns_capable(net->user_ns, CAP_NET_ADMIN) &&
+ !ns_capable(net->user_ns, CAP_NET_RAW)) {
+ err = -EPERM;
+ break;
+ }
+
+ switch (val) {
+ case WPAN_SECURITY_DEFAULT:
+ ro->secen_override = 0;
+ break;
+ case WPAN_SECURITY_ON:
+ ro->secen_override = 1;
+ ro->secen = 1;
+ break;
+ case WPAN_SECURITY_OFF:
+ ro->secen_override = 1;
+ ro->secen = 0;
+ break;
+ default:
+ err = -EINVAL;
+ break;
+ }
+ break;
+ case WPAN_SECURITY_LEVEL:
+ if (!ns_capable(net->user_ns, CAP_NET_ADMIN) &&
+ !ns_capable(net->user_ns, CAP_NET_RAW)) {
+ err = -EPERM;
+ break;
+ }
+
+ if (val < WPAN_SECURITY_LEVEL_DEFAULT ||
+ val > IEEE802154_SCF_SECLEVEL_ENC_MIC128) {
+ err = -EINVAL;
+ } else if (val == WPAN_SECURITY_LEVEL_DEFAULT) {
+ ro->seclevel_override = 0;
+ } else {
+ ro->seclevel_override = 1;
+ ro->seclevel = val;
+ }
+ break;
+ default:
+ err = -ENOPROTOOPT;
+ break;
+ }
+
+ release_sock(sk);
+ return err;
+}
+
+static struct proto ieee802154_dgram_prot = {
+ .name = "IEEE-802.15.4-MAC",
+ .owner = THIS_MODULE,
+ .obj_size = sizeof(struct dgram_sock),
+ .init = dgram_init,
+ .close = dgram_close,
+ .bind = dgram_bind,
+ .sendmsg = dgram_sendmsg,
+ .recvmsg = dgram_recvmsg,
+ .hash = dgram_hash,
+ .unhash = dgram_unhash,
+ .connect = dgram_connect,
+ .disconnect = dgram_disconnect,
+ .ioctl = dgram_ioctl,
+ .getsockopt = dgram_getsockopt,
+ .setsockopt = dgram_setsockopt,
+};
+
+static const struct proto_ops ieee802154_dgram_ops = {
+ .family = PF_IEEE802154,
+ .owner = THIS_MODULE,
+ .release = ieee802154_sock_release,
+ .bind = ieee802154_sock_bind,
+ .connect = ieee802154_sock_connect,
+ .socketpair = sock_no_socketpair,
+ .accept = sock_no_accept,
+ .getname = sock_no_getname,
+ .poll = datagram_poll,
+ .ioctl = ieee802154_sock_ioctl,
+ .gettstamp = sock_gettstamp,
+ .listen = sock_no_listen,
+ .shutdown = sock_no_shutdown,
+ .setsockopt = sock_common_setsockopt,
+ .getsockopt = sock_common_getsockopt,
+ .sendmsg = ieee802154_sock_sendmsg,
+ .recvmsg = sock_common_recvmsg,
+ .mmap = sock_no_mmap,
+ .sendpage = sock_no_sendpage,
+};
+
+static void ieee802154_sock_destruct(struct sock *sk)
+{
+ skb_queue_purge(&sk->sk_receive_queue);
+}
+
+/* Create a socket. Initialise the socket, blank the addresses
+ * set the state.
+ */
+static int ieee802154_create(struct net *net, struct socket *sock,
+ int protocol, int kern)
+{
+ struct sock *sk;
+ int rc;
+ struct proto *proto;
+ const struct proto_ops *ops;
+
+ if (!net_eq(net, &init_net))
+ return -EAFNOSUPPORT;
+
+ switch (sock->type) {
+ case SOCK_RAW:
+ rc = -EPERM;
+ if (!capable(CAP_NET_RAW))
+ goto out;
+ proto = &ieee802154_raw_prot;
+ ops = &ieee802154_raw_ops;
+ break;
+ case SOCK_DGRAM:
+ proto = &ieee802154_dgram_prot;
+ ops = &ieee802154_dgram_ops;
+ break;
+ default:
+ rc = -ESOCKTNOSUPPORT;
+ goto out;
+ }
+
+ rc = -ENOMEM;
+ sk = sk_alloc(net, PF_IEEE802154, GFP_KERNEL, proto, kern);
+ if (!sk)
+ goto out;
+ rc = 0;
+
+ sock->ops = ops;
+
+ sock_init_data(sock, sk);
+ sk->sk_destruct = ieee802154_sock_destruct;
+ sk->sk_family = PF_IEEE802154;
+
+ /* Checksums on by default */
+ sock_set_flag(sk, SOCK_ZAPPED);
+
+ if (sk->sk_prot->hash) {
+ rc = sk->sk_prot->hash(sk);
+ if (rc) {
+ sk_common_release(sk);
+ goto out;
+ }
+ }
+
+ if (sk->sk_prot->init) {
+ rc = sk->sk_prot->init(sk);
+ if (rc)
+ sk_common_release(sk);
+ }
+out:
+ return rc;
+}
+
+static const struct net_proto_family ieee802154_family_ops = {
+ .family = PF_IEEE802154,
+ .create = ieee802154_create,
+ .owner = THIS_MODULE,
+};
+
+static int ieee802154_rcv(struct sk_buff *skb, struct net_device *dev,
+ struct packet_type *pt, struct net_device *orig_dev)
+{
+ if (!netif_running(dev))
+ goto drop;
+ pr_debug("got frame, type %d, dev %p\n", dev->type, dev);
+#ifdef DEBUG
+ print_hex_dump_bytes("ieee802154_rcv ",
+ DUMP_PREFIX_NONE, skb->data, skb->len);
+#endif
+
+ if (!net_eq(dev_net(dev), &init_net))
+ goto drop;
+
+ ieee802154_raw_deliver(dev, skb);
+
+ if (dev->type != ARPHRD_IEEE802154)
+ goto drop;
+
+ if (skb->pkt_type != PACKET_OTHERHOST)
+ return ieee802154_dgram_deliver(dev, skb);
+
+drop:
+ kfree_skb(skb);
+ return NET_RX_DROP;
+}
+
+static struct packet_type ieee802154_packet_type = {
+ .type = htons(ETH_P_IEEE802154),
+ .func = ieee802154_rcv,
+};
+
+static int __init af_ieee802154_init(void)
+{
+ int rc;
+
+ rc = proto_register(&ieee802154_raw_prot, 1);
+ if (rc)
+ goto out;
+
+ rc = proto_register(&ieee802154_dgram_prot, 1);
+ if (rc)
+ goto err_dgram;
+
+ /* Tell SOCKET that we are alive */
+ rc = sock_register(&ieee802154_family_ops);
+ if (rc)
+ goto err_sock;
+ dev_add_pack(&ieee802154_packet_type);
+
+ rc = 0;
+ goto out;
+
+err_sock:
+ proto_unregister(&ieee802154_dgram_prot);
+err_dgram:
+ proto_unregister(&ieee802154_raw_prot);
+out:
+ return rc;
+}
+
+static void __exit af_ieee802154_remove(void)
+{
+ dev_remove_pack(&ieee802154_packet_type);
+ sock_unregister(PF_IEEE802154);
+ proto_unregister(&ieee802154_dgram_prot);
+ proto_unregister(&ieee802154_raw_prot);
+}
+
+module_init(af_ieee802154_init);
+module_exit(af_ieee802154_remove);
+
+MODULE_LICENSE("GPL");
+MODULE_ALIAS_NETPROTO(PF_IEEE802154);
diff --git a/net/ieee802154/sysfs.c b/net/ieee802154/sysfs.c
new file mode 100644
index 000000000..d29039338
--- /dev/null
+++ b/net/ieee802154/sysfs.c
@@ -0,0 +1,111 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ *
+ * Authors:
+ * Alexander Aring <aar@pengutronix.de>
+ *
+ * Based on: net/wireless/sysfs.c
+ */
+
+#include <linux/device.h>
+#include <linux/rtnetlink.h>
+
+#include <net/cfg802154.h>
+
+#include "core.h"
+#include "sysfs.h"
+#include "rdev-ops.h"
+
+static inline struct cfg802154_registered_device *
+dev_to_rdev(struct device *dev)
+{
+ return container_of(dev, struct cfg802154_registered_device,
+ wpan_phy.dev);
+}
+
+#define SHOW_FMT(name, fmt, member) \
+static ssize_t name ## _show(struct device *dev, \
+ struct device_attribute *attr, \
+ char *buf) \
+{ \
+ return sprintf(buf, fmt "\n", dev_to_rdev(dev)->member); \
+} \
+static DEVICE_ATTR_RO(name)
+
+SHOW_FMT(index, "%d", wpan_phy_idx);
+
+static ssize_t name_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct wpan_phy *wpan_phy = &dev_to_rdev(dev)->wpan_phy;
+
+ return sprintf(buf, "%s\n", dev_name(&wpan_phy->dev));
+}
+static DEVICE_ATTR_RO(name);
+
+static void wpan_phy_release(struct device *dev)
+{
+ struct cfg802154_registered_device *rdev = dev_to_rdev(dev);
+
+ cfg802154_dev_free(rdev);
+}
+
+static struct attribute *pmib_attrs[] = {
+ &dev_attr_index.attr,
+ &dev_attr_name.attr,
+ NULL,
+};
+ATTRIBUTE_GROUPS(pmib);
+
+#ifdef CONFIG_PM_SLEEP
+static int wpan_phy_suspend(struct device *dev)
+{
+ struct cfg802154_registered_device *rdev = dev_to_rdev(dev);
+ int ret = 0;
+
+ if (rdev->ops->suspend) {
+ rtnl_lock();
+ ret = rdev_suspend(rdev);
+ rtnl_unlock();
+ }
+
+ return ret;
+}
+
+static int wpan_phy_resume(struct device *dev)
+{
+ struct cfg802154_registered_device *rdev = dev_to_rdev(dev);
+ int ret = 0;
+
+ if (rdev->ops->resume) {
+ rtnl_lock();
+ ret = rdev_resume(rdev);
+ rtnl_unlock();
+ }
+
+ return ret;
+}
+
+static SIMPLE_DEV_PM_OPS(wpan_phy_pm_ops, wpan_phy_suspend, wpan_phy_resume);
+#define WPAN_PHY_PM_OPS (&wpan_phy_pm_ops)
+#else
+#define WPAN_PHY_PM_OPS NULL
+#endif
+
+struct class wpan_phy_class = {
+ .name = "ieee802154",
+ .dev_release = wpan_phy_release,
+ .dev_groups = pmib_groups,
+ .pm = WPAN_PHY_PM_OPS,
+};
+
+int wpan_phy_sysfs_init(void)
+{
+ return class_register(&wpan_phy_class);
+}
+
+void wpan_phy_sysfs_exit(void)
+{
+ class_unregister(&wpan_phy_class);
+}
diff --git a/net/ieee802154/sysfs.h b/net/ieee802154/sysfs.h
new file mode 100644
index 000000000..337545b63
--- /dev/null
+++ b/net/ieee802154/sysfs.h
@@ -0,0 +1,10 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __IEEE802154_SYSFS_H
+#define __IEEE802154_SYSFS_H
+
+int wpan_phy_sysfs_init(void);
+void wpan_phy_sysfs_exit(void);
+
+extern struct class wpan_phy_class;
+
+#endif /* __IEEE802154_SYSFS_H */
diff --git a/net/ieee802154/trace.c b/net/ieee802154/trace.c
new file mode 100644
index 000000000..95f997fad
--- /dev/null
+++ b/net/ieee802154/trace.c
@@ -0,0 +1,7 @@
+#include <linux/module.h>
+
+#ifndef __CHECKER__
+#define CREATE_TRACE_POINTS
+#include "trace.h"
+
+#endif
diff --git a/net/ieee802154/trace.h b/net/ieee802154/trace.h
new file mode 100644
index 000000000..19c2e5d60
--- /dev/null
+++ b/net/ieee802154/trace.h
@@ -0,0 +1,319 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Based on net/wireless/trace.h */
+
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM cfg802154
+
+#if !defined(__RDEV_CFG802154_OPS_TRACE) || defined(TRACE_HEADER_MULTI_READ)
+#define __RDEV_CFG802154_OPS_TRACE
+
+#include <linux/tracepoint.h>
+
+#include <net/cfg802154.h>
+
+#define MAXNAME 32
+#define WPAN_PHY_ENTRY __array(char, wpan_phy_name, MAXNAME)
+#define WPAN_PHY_ASSIGN strlcpy(__entry->wpan_phy_name, \
+ wpan_phy_name(wpan_phy), \
+ MAXNAME)
+#define WPAN_PHY_PR_FMT "%s"
+#define WPAN_PHY_PR_ARG __entry->wpan_phy_name
+
+#define WPAN_DEV_ENTRY __field(u32, identifier)
+#define WPAN_DEV_ASSIGN (__entry->identifier) = (!IS_ERR_OR_NULL(wpan_dev) \
+ ? wpan_dev->identifier : 0)
+#define WPAN_DEV_PR_FMT "wpan_dev(%u)"
+#define WPAN_DEV_PR_ARG (__entry->identifier)
+
+#define WPAN_CCA_ENTRY __field(enum nl802154_cca_modes, cca_mode) \
+ __field(enum nl802154_cca_opts, cca_opt)
+#define WPAN_CCA_ASSIGN \
+ do { \
+ (__entry->cca_mode) = cca->mode; \
+ (__entry->cca_opt) = cca->opt; \
+ } while (0)
+#define WPAN_CCA_PR_FMT "cca_mode: %d, cca_opt: %d"
+#define WPAN_CCA_PR_ARG __entry->cca_mode, __entry->cca_opt
+
+#define BOOL_TO_STR(bo) (bo) ? "true" : "false"
+
+/*************************************************************
+ * rdev->ops traces *
+ *************************************************************/
+
+DECLARE_EVENT_CLASS(wpan_phy_only_evt,
+ TP_PROTO(struct wpan_phy *wpan_phy),
+ TP_ARGS(wpan_phy),
+ TP_STRUCT__entry(
+ WPAN_PHY_ENTRY
+ ),
+ TP_fast_assign(
+ WPAN_PHY_ASSIGN;
+ ),
+ TP_printk(WPAN_PHY_PR_FMT, WPAN_PHY_PR_ARG)
+);
+
+DEFINE_EVENT(wpan_phy_only_evt, 802154_rdev_suspend,
+ TP_PROTO(struct wpan_phy *wpan_phy),
+ TP_ARGS(wpan_phy)
+);
+
+DEFINE_EVENT(wpan_phy_only_evt, 802154_rdev_resume,
+ TP_PROTO(struct wpan_phy *wpan_phy),
+ TP_ARGS(wpan_phy)
+);
+
+TRACE_EVENT(802154_rdev_add_virtual_intf,
+ TP_PROTO(struct wpan_phy *wpan_phy, char *name,
+ enum nl802154_iftype type, __le64 extended_addr),
+ TP_ARGS(wpan_phy, name, type, extended_addr),
+ TP_STRUCT__entry(
+ WPAN_PHY_ENTRY
+ __string(vir_intf_name, name ? name : "<noname>")
+ __field(enum nl802154_iftype, type)
+ __field(__le64, extended_addr)
+ ),
+ TP_fast_assign(
+ WPAN_PHY_ASSIGN;
+ __assign_str(vir_intf_name, name ? name : "<noname>");
+ __entry->type = type;
+ __entry->extended_addr = extended_addr;
+ ),
+ TP_printk(WPAN_PHY_PR_FMT ", virtual intf name: %s, type: %d, extended addr: 0x%llx",
+ WPAN_PHY_PR_ARG, __get_str(vir_intf_name), __entry->type,
+ __le64_to_cpu(__entry->extended_addr))
+);
+
+TRACE_EVENT(802154_rdev_del_virtual_intf,
+ TP_PROTO(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev),
+ TP_ARGS(wpan_phy, wpan_dev),
+ TP_STRUCT__entry(
+ WPAN_PHY_ENTRY
+ WPAN_DEV_ENTRY
+ ),
+ TP_fast_assign(
+ WPAN_PHY_ASSIGN;
+ WPAN_DEV_ASSIGN;
+ ),
+ TP_printk(WPAN_PHY_PR_FMT ", " WPAN_DEV_PR_FMT, WPAN_PHY_PR_ARG,
+ WPAN_DEV_PR_ARG)
+);
+
+TRACE_EVENT(802154_rdev_set_channel,
+ TP_PROTO(struct wpan_phy *wpan_phy, u8 page, u8 channel),
+ TP_ARGS(wpan_phy, page, channel),
+ TP_STRUCT__entry(
+ WPAN_PHY_ENTRY
+ __field(u8, page)
+ __field(u8, channel)
+ ),
+ TP_fast_assign(
+ WPAN_PHY_ASSIGN;
+ __entry->page = page;
+ __entry->channel = channel;
+ ),
+ TP_printk(WPAN_PHY_PR_FMT ", page: %d, channel: %d", WPAN_PHY_PR_ARG,
+ __entry->page, __entry->channel)
+);
+
+TRACE_EVENT(802154_rdev_set_tx_power,
+ TP_PROTO(struct wpan_phy *wpan_phy, s32 power),
+ TP_ARGS(wpan_phy, power),
+ TP_STRUCT__entry(
+ WPAN_PHY_ENTRY
+ __field(s32, power)
+ ),
+ TP_fast_assign(
+ WPAN_PHY_ASSIGN;
+ __entry->power = power;
+ ),
+ TP_printk(WPAN_PHY_PR_FMT ", mbm: %d", WPAN_PHY_PR_ARG,
+ __entry->power)
+);
+
+TRACE_EVENT(802154_rdev_set_cca_mode,
+ TP_PROTO(struct wpan_phy *wpan_phy, const struct wpan_phy_cca *cca),
+ TP_ARGS(wpan_phy, cca),
+ TP_STRUCT__entry(
+ WPAN_PHY_ENTRY
+ WPAN_CCA_ENTRY
+ ),
+ TP_fast_assign(
+ WPAN_PHY_ASSIGN;
+ WPAN_CCA_ASSIGN;
+ ),
+ TP_printk(WPAN_PHY_PR_FMT ", " WPAN_CCA_PR_FMT, WPAN_PHY_PR_ARG,
+ WPAN_CCA_PR_ARG)
+);
+
+TRACE_EVENT(802154_rdev_set_cca_ed_level,
+ TP_PROTO(struct wpan_phy *wpan_phy, s32 ed_level),
+ TP_ARGS(wpan_phy, ed_level),
+ TP_STRUCT__entry(
+ WPAN_PHY_ENTRY
+ __field(s32, ed_level)
+ ),
+ TP_fast_assign(
+ WPAN_PHY_ASSIGN;
+ __entry->ed_level = ed_level;
+ ),
+ TP_printk(WPAN_PHY_PR_FMT ", ed level: %d", WPAN_PHY_PR_ARG,
+ __entry->ed_level)
+);
+
+DECLARE_EVENT_CLASS(802154_le16_template,
+ TP_PROTO(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev,
+ __le16 le16arg),
+ TP_ARGS(wpan_phy, wpan_dev, le16arg),
+ TP_STRUCT__entry(
+ WPAN_PHY_ENTRY
+ WPAN_DEV_ENTRY
+ __field(__le16, le16arg)
+ ),
+ TP_fast_assign(
+ WPAN_PHY_ASSIGN;
+ WPAN_DEV_ASSIGN;
+ __entry->le16arg = le16arg;
+ ),
+ TP_printk(WPAN_PHY_PR_FMT ", " WPAN_DEV_PR_FMT ", pan id: 0x%04x",
+ WPAN_PHY_PR_ARG, WPAN_DEV_PR_ARG,
+ __le16_to_cpu(__entry->le16arg))
+);
+
+DEFINE_EVENT(802154_le16_template, 802154_rdev_set_pan_id,
+ TP_PROTO(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev,
+ __le16 le16arg),
+ TP_ARGS(wpan_phy, wpan_dev, le16arg)
+);
+
+DEFINE_EVENT_PRINT(802154_le16_template, 802154_rdev_set_short_addr,
+ TP_PROTO(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev,
+ __le16 le16arg),
+ TP_ARGS(wpan_phy, wpan_dev, le16arg),
+ TP_printk(WPAN_PHY_PR_FMT ", " WPAN_DEV_PR_FMT ", short addr: 0x%04x",
+ WPAN_PHY_PR_ARG, WPAN_DEV_PR_ARG,
+ __le16_to_cpu(__entry->le16arg))
+);
+
+TRACE_EVENT(802154_rdev_set_backoff_exponent,
+ TP_PROTO(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev,
+ u8 min_be, u8 max_be),
+ TP_ARGS(wpan_phy, wpan_dev, min_be, max_be),
+ TP_STRUCT__entry(
+ WPAN_PHY_ENTRY
+ WPAN_DEV_ENTRY
+ __field(u8, min_be)
+ __field(u8, max_be)
+ ),
+ TP_fast_assign(
+ WPAN_PHY_ASSIGN;
+ WPAN_DEV_ASSIGN;
+ __entry->min_be = min_be;
+ __entry->max_be = max_be;
+ ),
+
+ TP_printk(WPAN_PHY_PR_FMT ", " WPAN_DEV_PR_FMT
+ ", min be: %d, max be: %d", WPAN_PHY_PR_ARG,
+ WPAN_DEV_PR_ARG, __entry->min_be, __entry->max_be)
+);
+
+TRACE_EVENT(802154_rdev_set_csma_backoffs,
+ TP_PROTO(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev,
+ u8 max_csma_backoffs),
+ TP_ARGS(wpan_phy, wpan_dev, max_csma_backoffs),
+ TP_STRUCT__entry(
+ WPAN_PHY_ENTRY
+ WPAN_DEV_ENTRY
+ __field(u8, max_csma_backoffs)
+ ),
+ TP_fast_assign(
+ WPAN_PHY_ASSIGN;
+ WPAN_DEV_ASSIGN;
+ __entry->max_csma_backoffs = max_csma_backoffs;
+ ),
+
+ TP_printk(WPAN_PHY_PR_FMT ", " WPAN_DEV_PR_FMT
+ ", max csma backoffs: %d", WPAN_PHY_PR_ARG,
+ WPAN_DEV_PR_ARG, __entry->max_csma_backoffs)
+);
+
+TRACE_EVENT(802154_rdev_set_max_frame_retries,
+ TP_PROTO(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev,
+ s8 max_frame_retries),
+ TP_ARGS(wpan_phy, wpan_dev, max_frame_retries),
+ TP_STRUCT__entry(
+ WPAN_PHY_ENTRY
+ WPAN_DEV_ENTRY
+ __field(s8, max_frame_retries)
+ ),
+ TP_fast_assign(
+ WPAN_PHY_ASSIGN;
+ WPAN_DEV_ASSIGN;
+ __entry->max_frame_retries = max_frame_retries;
+ ),
+
+ TP_printk(WPAN_PHY_PR_FMT ", " WPAN_DEV_PR_FMT
+ ", max frame retries: %d", WPAN_PHY_PR_ARG,
+ WPAN_DEV_PR_ARG, __entry->max_frame_retries)
+);
+
+TRACE_EVENT(802154_rdev_set_lbt_mode,
+ TP_PROTO(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev,
+ bool mode),
+ TP_ARGS(wpan_phy, wpan_dev, mode),
+ TP_STRUCT__entry(
+ WPAN_PHY_ENTRY
+ WPAN_DEV_ENTRY
+ __field(bool, mode)
+ ),
+ TP_fast_assign(
+ WPAN_PHY_ASSIGN;
+ WPAN_DEV_ASSIGN;
+ __entry->mode = mode;
+ ),
+ TP_printk(WPAN_PHY_PR_FMT ", " WPAN_DEV_PR_FMT
+ ", lbt mode: %s", WPAN_PHY_PR_ARG,
+ WPAN_DEV_PR_ARG, BOOL_TO_STR(__entry->mode))
+);
+
+TRACE_EVENT(802154_rdev_set_ackreq_default,
+ TP_PROTO(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev,
+ bool ackreq),
+ TP_ARGS(wpan_phy, wpan_dev, ackreq),
+ TP_STRUCT__entry(
+ WPAN_PHY_ENTRY
+ WPAN_DEV_ENTRY
+ __field(bool, ackreq)
+ ),
+ TP_fast_assign(
+ WPAN_PHY_ASSIGN;
+ WPAN_DEV_ASSIGN;
+ __entry->ackreq = ackreq;
+ ),
+ TP_printk(WPAN_PHY_PR_FMT ", " WPAN_DEV_PR_FMT
+ ", ackreq default: %s", WPAN_PHY_PR_ARG,
+ WPAN_DEV_PR_ARG, BOOL_TO_STR(__entry->ackreq))
+);
+
+TRACE_EVENT(802154_rdev_return_int,
+ TP_PROTO(struct wpan_phy *wpan_phy, int ret),
+ TP_ARGS(wpan_phy, ret),
+ TP_STRUCT__entry(
+ WPAN_PHY_ENTRY
+ __field(int, ret)
+ ),
+ TP_fast_assign(
+ WPAN_PHY_ASSIGN;
+ __entry->ret = ret;
+ ),
+ TP_printk(WPAN_PHY_PR_FMT ", returned: %d", WPAN_PHY_PR_ARG,
+ __entry->ret)
+);
+
+#endif /* !__RDEV_CFG802154_OPS_TRACE || TRACE_HEADER_MULTI_READ */
+
+#undef TRACE_INCLUDE_PATH
+#define TRACE_INCLUDE_PATH .
+#undef TRACE_INCLUDE_FILE
+#define TRACE_INCLUDE_FILE trace
+#include <trace/define_trace.h>
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-03 23:35:39 +0000