net/mac802154/mac_cmd.c

   1 /*
   2  * MAC commands interface
   3  *
   4  * Copyright 2007-2012 Siemens AG
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License version 2
   8  * as published by the Free Software Foundation.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * Written by:
  16  * Sergey Lapin <slapin@ossfans.org>
  17  * Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
  18  * Alexander Smirnov <alex.bluesman.smirnov@gmail.com>
  19  */
  20
  21 #include <linux/skbuff.h>
  22 #include <linux/if_arp.h>
  23 #include <linux/ieee802154.h>
  24
  25 #include <net/ieee802154_netdev.h>
  26 #include <net/cfg802154.h>
  27 #include <net/mac802154.h>
  28
  29 #include "ieee802154_i.h"
  30 #include "driver-ops.h"
  31
  32 static int mac802154_mlme_start_req(struct net_device *dev,
  33                                     struct ieee802154_addr *addr,
  34                                     u8 channel, u8 page,
  35                                     u8 bcn_ord, u8 sf_ord,
  36                                     u8 pan_coord, u8 blx,
  37                                     u8 coord_realign)
  38 {
  39         struct ieee802154_mlme_ops *ops = ieee802154_mlme_ops(dev);
  40         int rc = 0;
  41
  42         BUG_ON(addr->mode != IEEE802154_ADDR_SHORT);
  43
  44         mac802154_dev_set_pan_id(dev, addr->pan_id);
  45         mac802154_dev_set_short_addr(dev, addr->short_addr);
  46         mac802154_dev_set_page_channel(dev, page, channel);
  47
  48         if (ops->llsec) {
  49                 struct ieee802154_llsec_params params;
  50                 int changed = 0;
  51
  52                 params.coord_shortaddr = addr->short_addr;
  53                 changed |= IEEE802154_LLSEC_PARAM_COORD_SHORTADDR;
  54
  55                 params.pan_id = addr->pan_id;
  56                 changed |= IEEE802154_LLSEC_PARAM_PAN_ID;
  57
  58                 params.hwaddr = ieee802154_devaddr_from_raw(dev->dev_addr);
  59                 changed |= IEEE802154_LLSEC_PARAM_HWADDR;
  60
  61                 params.coord_hwaddr = params.hwaddr;
  62                 changed |= IEEE802154_LLSEC_PARAM_COORD_HWADDR;
  63
  64                 rc = ops->llsec->set_params(dev, &params, changed);
  65         }
  66
  67         return rc;
  68 }
  69
  70 static int mac802154_set_mac_params(struct net_device *dev,
  71                                     const struct ieee802154_mac_params *params)
  72 {
  73         struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
  74         struct ieee802154_local *local = sdata->local;
  75         int ret;
  76
  77         mutex_lock(&sdata->local->iflist_mtx);
  78         sdata->mac_params = *params;
  79         mutex_unlock(&sdata->local->iflist_mtx);
  80
  81         if (local->hw.flags & IEEE802154_HW_TXPOWER) {
  82                 ret = drv_set_tx_power(local, params->transmit_power);
  83                 if (ret < 0)
  84                         return ret;
  85         }
  86
  87         if (local->hw.flags & IEEE802154_HW_CCA_MODE) {
  88                 ret = drv_set_cca_mode(local, params->cca_mode);
  89                 if (ret < 0)
  90                         return ret;
  91         }
  92
  93         if (local->hw.flags & IEEE802154_HW_CCA_ED_LEVEL) {
  94                 ret = drv_set_cca_ed_level(local, params->cca_ed_level);
  95                 if (ret < 0)
  96                         return ret;
  97         }
  98
  99         return 0;
 100 }
 101
 102 static void mac802154_get_mac_params(struct net_device *dev,
 103                                      struct ieee802154_mac_params *params)
 104 {
 105         struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
 106
 107         mutex_lock(&sdata->local->iflist_mtx);
 108         *params = sdata->mac_params;
 109         mutex_unlock(&sdata->local->iflist_mtx);
 110 }
 111
 112 static struct ieee802154_llsec_ops mac802154_llsec_ops = {
 113         .get_params = mac802154_get_params,
 114         .set_params = mac802154_set_params,
 115         .add_key = mac802154_add_key,
 116         .del_key = mac802154_del_key,
 117         .add_dev = mac802154_add_dev,
 118         .del_dev = mac802154_del_dev,
 119         .add_devkey = mac802154_add_devkey,
 120         .del_devkey = mac802154_del_devkey,
 121         .add_seclevel = mac802154_add_seclevel,
 122         .del_seclevel = mac802154_del_seclevel,
 123         .lock_table = mac802154_lock_table,
 124         .get_table = mac802154_get_table,
 125         .unlock_table = mac802154_unlock_table,
 126 };
 127
 128 struct ieee802154_mlme_ops mac802154_mlme_wpan = {
 129         .start_req = mac802154_mlme_start_req,
 130         .get_pan_id = mac802154_dev_get_pan_id,
 131         .get_short_addr = mac802154_dev_get_short_addr,
 132         .get_dsn = mac802154_dev_get_dsn,
 133
 134         .llsec = &mac802154_llsec_ops,
 135
 136         .set_mac_params = mac802154_set_mac_params,
 137         .get_mac_params = mac802154_get_mac_params,
 138 };