static int irda_nl_set_mode(struct sk_buff *skb, struct genl_info *info) { struct net_device * dev; struct irlap_cb * irlap; u32 mode; if (!info->attrs[IRDA_NL_ATTR_MODE]) return -EINVAL; mode = nla_get_u32(info->attrs[IRDA_NL_ATTR_MODE]); IRDA_DEBUG(5, "%s(): Switching to mode: %d\n", __func__, mode); dev = ifname_to_netdev(&init_net, info); if (!dev) return -ENODEV; irlap = (struct irlap_cb *)dev->atalk_ptr; if (!irlap) { dev_put(dev); return -ENODEV; } irlap->mode = mode; dev_put(dev); return 0; }
static struct wl1251 *ifname_to_wl1251(struct net *net, struct genl_info *info) { struct net_device *netdev; struct wireless_dev *wdev; struct wiphy *wiphy; struct ieee80211_hw *hw; netdev = ifname_to_netdev(net, info); if (netdev == NULL) { wl1251_error("Wrong interface"); return NULL; } wdev = netdev->ieee80211_ptr; if (wdev == NULL) { wl1251_error("ieee80211_ptr is NULL"); return NULL; } wiphy = wdev->wiphy; if (wiphy == NULL) { wl1251_error("wiphy is NULL"); return NULL; } hw = wiphy_priv(wiphy); if (hw == NULL) { wl1251_error("hw is NULL"); return NULL; } dev_put(netdev); return hw->priv; }
static int irda_nl_get_mode(struct sk_buff *skb, struct genl_info *info) { struct net_device * dev; struct irlap_cb * irlap; struct sk_buff *msg; void *hdr; int ret = -ENOBUFS; dev = ifname_to_netdev(&init_net, info); if (!dev) return -ENODEV; msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); if (!msg) { dev_put(dev); return -ENOMEM; } irlap = (struct irlap_cb *)dev->atalk_ptr; if (!irlap) { ret = -ENODEV; goto err_out; } hdr = genlmsg_put(msg, info->snd_portid, info->snd_seq, &irda_nl_family, 0, IRDA_NL_CMD_GET_MODE); if (hdr == NULL) { ret = -EMSGSIZE; goto err_out; } if(nla_put_string(msg, IRDA_NL_ATTR_IFNAME, dev->name)) goto err_out; if(nla_put_u32(msg, IRDA_NL_ATTR_MODE, irlap->mode)) goto err_out; genlmsg_end(msg, hdr); return genlmsg_reply(msg, info); err_out: nlmsg_free(msg); dev_put(dev); return ret; }