cregit-Linux how code gets into the kernel

Release 4.11 net/ieee802154/nl-mac.c

Directory: net/ieee802154
/*
 * Netlink interface for IEEE 802.15.4 stack
 *
 * Copyright 2007, 2008 Siemens AG
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2
 * as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * Written by:
 * 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); }

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Dmitry Baryshkov717.95%125.00%
Nicolas Dichtel615.38%125.00%
Total39100.00%4100.00%


static __le64 nla_get_hwaddr(const struct nlattr *nla) { return ieee802154_devaddr_from_raw(nla_data(nla)); }

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Dmitry Baryshkov628.57%150.00%
Total21100.00%2100.00%


static int nla_put_shortaddr(struct sk_buff *msg, int type, __le16 addr) { return nla_put_u16(msg, type, le16_to_cpu(addr)); }

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Alexander Aring1446.67%150.00%
Total30100.00%2100.00%


static __le16 nla_get_shortaddr(const struct nlattr *nla) { return cpu_to_le16(nla_get_u16(nla)); }

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Total21100.00%2100.00%


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; }

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Dmitry Baryshkov9786.61%125.00%
David S. Miller1311.61%125.00%
Alexander Aring10.89%125.00%
Johannes Berg10.89%125.00%
Total112100.00%4100.00%


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; }

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Dmitry Baryshkov16245.00%214.29%
Phoebe Buckheister14038.89%321.43%
Alexander Aring3910.83%642.86%
David S. Miller154.17%17.14%
Johannes Berg30.83%17.14%
Eric W. Biedermann10.28%17.14%
Total360100.00%14100.00%

/* 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_strlcpy(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; }

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Dmitry Baryshkov12596.90%150.00%
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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; }

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Dmitry Baryshkov22690.04%133.33%
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Phoebe Buckheister93.59%133.33%
Total251100.00%3100.00%


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; }

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Dmitry Baryshkov13881.18%125.00%
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Total170100.00%4100.00%


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; }

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Dmitry Baryshkov16383.16%125.00%
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Alexander Aring94.59%125.00%
Phoebe Buckheister84.08%125.00%
Total196100.00%4100.00%

/* 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; }

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Dmitry Baryshkov32185.15%116.67%
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Phoebe Buckheister71.86%116.67%
Total377100.00%6100.00%


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; }

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Dmitry Baryshkov17190.48%150.00%
Werner Almesberger189.52%150.00%
Total189100.00%2100.00%


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; }

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Dmitry Baryshkov12997.73%125.00%
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Thomas Graf10.76%125.00%
Eric W. Biedermann10.76%125.00%
Total132100.00%4100.00%


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; }

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Dmitry Baryshkov12699.21%150.00%
Eric W. Biedermann10.79%150.00%
Total127100.00%2100.00%


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; }

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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; }

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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; }

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Phoebe Buckheister19297.96%150.00%
Nicolas Dichtel42.04%150.00%
Total196100.00%2100.00%


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)) goto out_free; dev_put(dev); return ieee802154_nl_reply(msg, info); out_free: nlmsg_free(msg); out_dev: dev_put(dev); return rc; }

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Phoebe Buckheister25696.97%150.00%
Dan Carpenter83.03%150.00%
Total264100.00%2100.00%


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; }

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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; }

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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; }

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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; }

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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); }

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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); }

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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); }

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int ieee802154_llsec_del_key(struct sk_buff *skb, struct genl_info *info) { return ieee802154_nl_llsec_change(skb, info, llsec_remove_key); }

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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; }

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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; }

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int ieee802154_llsec_dump_keys(struct sk_buff *skb, struct netlink_callback *cb) { return ieee802154_llsec_dump_table(skb, cb, llsec_iter_keys); }

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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; }

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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); }

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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); }

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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); }

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int ieee802154_llsec_del_dev(struct sk_buff *skb, struct genl_info *info) { return ieee802154_nl_llsec_change(skb, info, llsec_del_dev); }

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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; }

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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; }

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int ieee802154_llsec_dump_devs(struct sk_buff *skb, struct netlink_callback *cb) { return ieee802154_llsec_dump_table(skb, cb, llsec_iter_devs); }

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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); }

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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); }

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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); }

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int ieee802154_llsec_del_devkey(struct sk_buff *skb, struct genl_info *info) { return ieee802154_nl_llsec_change(skb, info, llsec_del_devkey); }

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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; }

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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; }

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int ieee802154_llsec_dump_devkeys(struct sk_buff *skb, struct netlink_callback *cb) { return ieee802154_llsec_dump_table(skb, cb, llsec_iter_devkeys); }

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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; }

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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); }

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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); }

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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); }

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int ieee802154_llsec_del_seclevel(struct sk_buff *skb, struct genl_info *info) { return ieee802154_nl_llsec_change(skb, info, llsec_del_seclevel); }

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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; }

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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; }

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int ieee802154_llsec_dump_seclevels(struct sk_buff *skb, struct netlink_callback *cb) { return ieee802154_llsec_dump_table(skb, cb, llsec_iter_seclevels); }

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Werner Almesberger831.24%13.45%
David S. Miller280.42%13.45%
Nicolas Dichtel140.21%13.45%
Dan Carpenter80.12%13.45%
Varka Bhadram70.10%26.90%
Johannes Berg40.06%26.90%
Tejun Heo30.04%13.45%
Paul Gortmaker30.04%13.45%
Eric W. Biedermann30.04%13.45%
Thomas Graf10.01%13.45%
Total6685100.00%29100.00%
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