forked from Minki/linux
872f690341
Calls to nla_strlcpy are now replaced by calls to nla_strscpy which is the new name of this function. Signed-off-by: Francis Laniel <laniel_francis@privacyrequired.com> Reviewed-by: Kees Cook <keescook@chromium.org> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
1342 lines
34 KiB
C
1342 lines
34 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* Netlink interface for IEEE 802.15.4 stack
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*
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* Copyright 2007, 2008 Siemens AG
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*
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* Written by:
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* Sergey Lapin <slapin@ossfans.org>
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* Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
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* Maxim Osipov <maxim.osipov@siemens.com>
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*/
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#include <linux/gfp.h>
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#include <linux/kernel.h>
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#include <linux/if_arp.h>
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#include <linux/netdevice.h>
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#include <linux/ieee802154.h>
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#include <net/netlink.h>
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#include <net/genetlink.h>
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#include <net/sock.h>
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#include <linux/nl802154.h>
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#include <linux/export.h>
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#include <net/af_ieee802154.h>
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#include <net/ieee802154_netdev.h>
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#include <net/cfg802154.h>
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#include "ieee802154.h"
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static int nla_put_hwaddr(struct sk_buff *msg, int type, __le64 hwaddr,
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int padattr)
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{
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return nla_put_u64_64bit(msg, type, swab64((__force u64)hwaddr),
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padattr);
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}
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static __le64 nla_get_hwaddr(const struct nlattr *nla)
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{
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return ieee802154_devaddr_from_raw(nla_data(nla));
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}
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static int nla_put_shortaddr(struct sk_buff *msg, int type, __le16 addr)
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{
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return nla_put_u16(msg, type, le16_to_cpu(addr));
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}
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static __le16 nla_get_shortaddr(const struct nlattr *nla)
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{
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return cpu_to_le16(nla_get_u16(nla));
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}
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static int ieee802154_nl_start_confirm(struct net_device *dev, u8 status)
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{
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struct sk_buff *msg;
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pr_debug("%s\n", __func__);
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msg = ieee802154_nl_create(0, IEEE802154_START_CONF);
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if (!msg)
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return -ENOBUFS;
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if (nla_put_string(msg, IEEE802154_ATTR_DEV_NAME, dev->name) ||
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nla_put_u32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex) ||
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nla_put(msg, IEEE802154_ATTR_HW_ADDR, IEEE802154_ADDR_LEN,
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dev->dev_addr) ||
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nla_put_u8(msg, IEEE802154_ATTR_STATUS, status))
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goto nla_put_failure;
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return ieee802154_nl_mcast(msg, IEEE802154_COORD_MCGRP);
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nla_put_failure:
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nlmsg_free(msg);
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return -ENOBUFS;
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}
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static int ieee802154_nl_fill_iface(struct sk_buff *msg, u32 portid,
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u32 seq, int flags, struct net_device *dev)
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{
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void *hdr;
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struct wpan_phy *phy;
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struct ieee802154_mlme_ops *ops;
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__le16 short_addr, pan_id;
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pr_debug("%s\n", __func__);
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hdr = genlmsg_put(msg, 0, seq, &nl802154_family, flags,
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IEEE802154_LIST_IFACE);
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if (!hdr)
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goto out;
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ops = ieee802154_mlme_ops(dev);
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phy = dev->ieee802154_ptr->wpan_phy;
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BUG_ON(!phy);
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get_device(&phy->dev);
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rtnl_lock();
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short_addr = dev->ieee802154_ptr->short_addr;
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pan_id = dev->ieee802154_ptr->pan_id;
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rtnl_unlock();
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if (nla_put_string(msg, IEEE802154_ATTR_DEV_NAME, dev->name) ||
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nla_put_string(msg, IEEE802154_ATTR_PHY_NAME, wpan_phy_name(phy)) ||
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nla_put_u32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex) ||
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nla_put(msg, IEEE802154_ATTR_HW_ADDR, IEEE802154_ADDR_LEN,
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dev->dev_addr) ||
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nla_put_shortaddr(msg, IEEE802154_ATTR_SHORT_ADDR, short_addr) ||
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nla_put_shortaddr(msg, IEEE802154_ATTR_PAN_ID, pan_id))
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goto nla_put_failure;
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if (ops->get_mac_params) {
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struct ieee802154_mac_params params;
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rtnl_lock();
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ops->get_mac_params(dev, ¶ms);
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rtnl_unlock();
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if (nla_put_s8(msg, IEEE802154_ATTR_TXPOWER,
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params.transmit_power / 100) ||
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nla_put_u8(msg, IEEE802154_ATTR_LBT_ENABLED, params.lbt) ||
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nla_put_u8(msg, IEEE802154_ATTR_CCA_MODE,
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params.cca.mode) ||
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nla_put_s32(msg, IEEE802154_ATTR_CCA_ED_LEVEL,
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params.cca_ed_level / 100) ||
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nla_put_u8(msg, IEEE802154_ATTR_CSMA_RETRIES,
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params.csma_retries) ||
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nla_put_u8(msg, IEEE802154_ATTR_CSMA_MIN_BE,
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params.min_be) ||
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nla_put_u8(msg, IEEE802154_ATTR_CSMA_MAX_BE,
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params.max_be) ||
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nla_put_s8(msg, IEEE802154_ATTR_FRAME_RETRIES,
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params.frame_retries))
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goto nla_put_failure;
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}
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wpan_phy_put(phy);
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genlmsg_end(msg, hdr);
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return 0;
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nla_put_failure:
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wpan_phy_put(phy);
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genlmsg_cancel(msg, hdr);
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out:
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return -EMSGSIZE;
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}
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/* Requests from userspace */
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static struct net_device *ieee802154_nl_get_dev(struct genl_info *info)
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{
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struct net_device *dev;
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if (info->attrs[IEEE802154_ATTR_DEV_NAME]) {
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char name[IFNAMSIZ + 1];
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nla_strscpy(name, info->attrs[IEEE802154_ATTR_DEV_NAME],
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sizeof(name));
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dev = dev_get_by_name(&init_net, name);
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} else if (info->attrs[IEEE802154_ATTR_DEV_INDEX]) {
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dev = dev_get_by_index(&init_net,
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nla_get_u32(info->attrs[IEEE802154_ATTR_DEV_INDEX]));
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} else {
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return NULL;
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}
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if (!dev)
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return NULL;
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if (dev->type != ARPHRD_IEEE802154) {
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dev_put(dev);
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return NULL;
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}
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return dev;
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}
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int ieee802154_associate_req(struct sk_buff *skb, struct genl_info *info)
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{
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struct net_device *dev;
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struct ieee802154_addr addr;
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u8 page;
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int ret = -EOPNOTSUPP;
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if (!info->attrs[IEEE802154_ATTR_CHANNEL] ||
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!info->attrs[IEEE802154_ATTR_COORD_PAN_ID] ||
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(!info->attrs[IEEE802154_ATTR_COORD_HW_ADDR] &&
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!info->attrs[IEEE802154_ATTR_COORD_SHORT_ADDR]) ||
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!info->attrs[IEEE802154_ATTR_CAPABILITY])
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return -EINVAL;
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dev = ieee802154_nl_get_dev(info);
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if (!dev)
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return -ENODEV;
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if (!ieee802154_mlme_ops(dev)->assoc_req)
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goto out;
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if (info->attrs[IEEE802154_ATTR_COORD_HW_ADDR]) {
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addr.mode = IEEE802154_ADDR_LONG;
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addr.extended_addr = nla_get_hwaddr(
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info->attrs[IEEE802154_ATTR_COORD_HW_ADDR]);
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} else {
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addr.mode = IEEE802154_ADDR_SHORT;
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addr.short_addr = nla_get_shortaddr(
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info->attrs[IEEE802154_ATTR_COORD_SHORT_ADDR]);
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}
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addr.pan_id = nla_get_shortaddr(
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info->attrs[IEEE802154_ATTR_COORD_PAN_ID]);
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if (info->attrs[IEEE802154_ATTR_PAGE])
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page = nla_get_u8(info->attrs[IEEE802154_ATTR_PAGE]);
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else
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page = 0;
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ret = ieee802154_mlme_ops(dev)->assoc_req(dev, &addr,
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nla_get_u8(info->attrs[IEEE802154_ATTR_CHANNEL]),
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page,
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nla_get_u8(info->attrs[IEEE802154_ATTR_CAPABILITY]));
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out:
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dev_put(dev);
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return ret;
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}
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int ieee802154_associate_resp(struct sk_buff *skb, struct genl_info *info)
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{
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struct net_device *dev;
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struct ieee802154_addr addr;
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int ret = -EOPNOTSUPP;
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if (!info->attrs[IEEE802154_ATTR_STATUS] ||
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!info->attrs[IEEE802154_ATTR_DEST_HW_ADDR] ||
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!info->attrs[IEEE802154_ATTR_DEST_SHORT_ADDR])
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return -EINVAL;
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dev = ieee802154_nl_get_dev(info);
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if (!dev)
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return -ENODEV;
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if (!ieee802154_mlme_ops(dev)->assoc_resp)
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goto out;
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addr.mode = IEEE802154_ADDR_LONG;
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addr.extended_addr = nla_get_hwaddr(
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info->attrs[IEEE802154_ATTR_DEST_HW_ADDR]);
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rtnl_lock();
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addr.pan_id = dev->ieee802154_ptr->pan_id;
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rtnl_unlock();
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ret = ieee802154_mlme_ops(dev)->assoc_resp(dev, &addr,
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nla_get_shortaddr(info->attrs[IEEE802154_ATTR_DEST_SHORT_ADDR]),
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nla_get_u8(info->attrs[IEEE802154_ATTR_STATUS]));
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out:
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dev_put(dev);
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return ret;
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}
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int ieee802154_disassociate_req(struct sk_buff *skb, struct genl_info *info)
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{
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struct net_device *dev;
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struct ieee802154_addr addr;
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int ret = -EOPNOTSUPP;
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if ((!info->attrs[IEEE802154_ATTR_DEST_HW_ADDR] &&
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!info->attrs[IEEE802154_ATTR_DEST_SHORT_ADDR]) ||
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!info->attrs[IEEE802154_ATTR_REASON])
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return -EINVAL;
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dev = ieee802154_nl_get_dev(info);
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if (!dev)
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return -ENODEV;
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if (!ieee802154_mlme_ops(dev)->disassoc_req)
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goto out;
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if (info->attrs[IEEE802154_ATTR_DEST_HW_ADDR]) {
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addr.mode = IEEE802154_ADDR_LONG;
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addr.extended_addr = nla_get_hwaddr(
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info->attrs[IEEE802154_ATTR_DEST_HW_ADDR]);
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} else {
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addr.mode = IEEE802154_ADDR_SHORT;
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addr.short_addr = nla_get_shortaddr(
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info->attrs[IEEE802154_ATTR_DEST_SHORT_ADDR]);
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}
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rtnl_lock();
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addr.pan_id = dev->ieee802154_ptr->pan_id;
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rtnl_unlock();
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ret = ieee802154_mlme_ops(dev)->disassoc_req(dev, &addr,
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nla_get_u8(info->attrs[IEEE802154_ATTR_REASON]));
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out:
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dev_put(dev);
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return ret;
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}
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/* PANid, channel, beacon_order = 15, superframe_order = 15,
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* PAN_coordinator, battery_life_extension = 0,
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* coord_realignment = 0, security_enable = 0
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*/
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int ieee802154_start_req(struct sk_buff *skb, struct genl_info *info)
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{
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struct net_device *dev;
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struct ieee802154_addr addr;
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u8 channel, bcn_ord, sf_ord;
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u8 page;
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int pan_coord, blx, coord_realign;
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int ret = -EBUSY;
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if (!info->attrs[IEEE802154_ATTR_COORD_PAN_ID] ||
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!info->attrs[IEEE802154_ATTR_COORD_SHORT_ADDR] ||
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!info->attrs[IEEE802154_ATTR_CHANNEL] ||
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!info->attrs[IEEE802154_ATTR_BCN_ORD] ||
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!info->attrs[IEEE802154_ATTR_SF_ORD] ||
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!info->attrs[IEEE802154_ATTR_PAN_COORD] ||
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!info->attrs[IEEE802154_ATTR_BAT_EXT] ||
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!info->attrs[IEEE802154_ATTR_COORD_REALIGN]
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)
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return -EINVAL;
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dev = ieee802154_nl_get_dev(info);
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if (!dev)
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return -ENODEV;
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if (netif_running(dev))
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goto out;
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if (!ieee802154_mlme_ops(dev)->start_req) {
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ret = -EOPNOTSUPP;
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goto out;
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}
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addr.mode = IEEE802154_ADDR_SHORT;
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addr.short_addr = nla_get_shortaddr(
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info->attrs[IEEE802154_ATTR_COORD_SHORT_ADDR]);
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addr.pan_id = nla_get_shortaddr(
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info->attrs[IEEE802154_ATTR_COORD_PAN_ID]);
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channel = nla_get_u8(info->attrs[IEEE802154_ATTR_CHANNEL]);
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bcn_ord = nla_get_u8(info->attrs[IEEE802154_ATTR_BCN_ORD]);
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sf_ord = nla_get_u8(info->attrs[IEEE802154_ATTR_SF_ORD]);
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pan_coord = nla_get_u8(info->attrs[IEEE802154_ATTR_PAN_COORD]);
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blx = nla_get_u8(info->attrs[IEEE802154_ATTR_BAT_EXT]);
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coord_realign = nla_get_u8(info->attrs[IEEE802154_ATTR_COORD_REALIGN]);
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if (info->attrs[IEEE802154_ATTR_PAGE])
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page = nla_get_u8(info->attrs[IEEE802154_ATTR_PAGE]);
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else
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page = 0;
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if (addr.short_addr == cpu_to_le16(IEEE802154_ADDR_BROADCAST)) {
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ieee802154_nl_start_confirm(dev, IEEE802154_NO_SHORT_ADDRESS);
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dev_put(dev);
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return -EINVAL;
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}
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rtnl_lock();
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ret = ieee802154_mlme_ops(dev)->start_req(dev, &addr, channel, page,
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bcn_ord, sf_ord, pan_coord, blx, coord_realign);
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rtnl_unlock();
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|
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/* FIXME: add validation for unused parameters to be sane
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* for SoftMAC
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*/
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ieee802154_nl_start_confirm(dev, IEEE802154_SUCCESS);
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out:
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dev_put(dev);
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return ret;
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}
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|
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int ieee802154_scan_req(struct sk_buff *skb, struct genl_info *info)
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{
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struct net_device *dev;
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int ret = -EOPNOTSUPP;
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u8 type;
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u32 channels;
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u8 duration;
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u8 page;
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|
|
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if (!info->attrs[IEEE802154_ATTR_SCAN_TYPE] ||
|
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!info->attrs[IEEE802154_ATTR_CHANNELS] ||
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!info->attrs[IEEE802154_ATTR_DURATION])
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return -EINVAL;
|
|
|
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dev = ieee802154_nl_get_dev(info);
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if (!dev)
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return -ENODEV;
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if (!ieee802154_mlme_ops(dev)->scan_req)
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goto out;
|
|
|
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type = nla_get_u8(info->attrs[IEEE802154_ATTR_SCAN_TYPE]);
|
|
channels = nla_get_u32(info->attrs[IEEE802154_ATTR_CHANNELS]);
|
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duration = nla_get_u8(info->attrs[IEEE802154_ATTR_DURATION]);
|
|
|
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if (info->attrs[IEEE802154_ATTR_PAGE])
|
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page = nla_get_u8(info->attrs[IEEE802154_ATTR_PAGE]);
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else
|
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page = 0;
|
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|
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ret = ieee802154_mlme_ops(dev)->scan_req(dev, type, channels,
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page, duration);
|
|
|
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out:
|
|
dev_put(dev);
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return ret;
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|
}
|
|
|
|
int ieee802154_list_iface(struct sk_buff *skb, struct genl_info *info)
|
|
{
|
|
/* Request for interface name, index, type, IEEE address,
|
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* PAN Id, short address
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|
*/
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|
struct sk_buff *msg;
|
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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)
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|
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;
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int s_idx = cb->args[0];
|
|
|
|
pr_debug("%s\n", __func__);
|
|
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|
idx = 0;
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|
for_each_netdev(net, dev) {
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if (idx < s_idx || dev->type != ARPHRD_IEEE802154)
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goto cont;
|
|
|
|
if (ieee802154_nl_fill_iface(skb, NETLINK_CB(cb->skb).portid,
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cb->nlh->nlmsg_seq,
|
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NLM_F_MULTI, dev) < 0)
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|
break;
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|
cont:
|
|
idx++;
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|
}
|
|
cb->args[0] = idx;
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|
|
|
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, ¶ms);
|
|
|
|
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, ¶ms);
|
|
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] &&
|
|
!(info->attrs[IEEE802154_ATTR_SHORT_ADDR] ||
|
|
info->attrs[IEEE802154_ATTR_HW_ADDR]))
|
|
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 {
|
|
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, ¶ms);
|
|
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, ¶ms.out_key))
|
|
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, ¶ms.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, ¶ms, 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 rc = 0, 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 rc = -EMSGSIZE;
|
|
}
|
|
|
|
data->s_idx2++;
|
|
}
|
|
|
|
data->s_idx++;
|
|
}
|
|
|
|
return rc;
|
|
}
|
|
|
|
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);
|
|
}
|