From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wi0-f182.google.com ([209.85.212.182]:37176 "EHLO mail-wi0-f182.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753762AbbDGLuI (ORCPT ); Tue, 7 Apr 2015 07:50:08 -0400 Received: by wiaa2 with SMTP id a2so15276568wia.0 for ; Tue, 07 Apr 2015 04:50:07 -0700 (PDT) From: Alexander Aring Subject: [PATCHv3 bluetooth-next 2/4] nl802154: add set interface cmd Date: Tue, 7 Apr 2015 13:49:51 +0200 Message-Id: <1428407393-16005-3-git-send-email-alex.aring@gmail.com> In-Reply-To: <1428407393-16005-1-git-send-email-alex.aring@gmail.com> References: <1428407393-16005-1-git-send-email-alex.aring@gmail.com> Sender: linux-wpan-owner@vger.kernel.org List-ID: To: linux-wpan@vger.kernel.org Cc: kernel@pengutronix.de, mkl@pengutronix.de, Alexander Aring This patch introduce the NL802154_CMD_SET_INTERFACE command which handles setting of all wpan interface mac attributes. his will introduce an easilier wpan mac settings handling in userspace application with nl802154. Signed-off-by: Alexander Aring --- net/ieee802154/nl802154.c | 110 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 110 insertions(+) diff --git a/net/ieee802154/nl802154.c b/net/ieee802154/nl802154.c index c12c07f..e2f50ba 100644 --- a/net/ieee802154/nl802154.c +++ b/net/ieee802154/nl802154.c @@ -603,6 +603,108 @@ static int nl802154_get_interface(struct sk_buff *skb, struct genl_info *info) return genlmsg_reply(msg, info); } +static int nl802154_set_interface(struct sk_buff *skb, struct genl_info *info) +{ + struct cfg802154_registered_device *rdev = info->user_ptr[0]; + struct net_device *dev = info->user_ptr[1]; + struct wpan_dev *wpan_dev = dev->ieee802154_ptr; + int ret; + + if (info->attrs[NL802154_ATTR_PAN_ID]) { + __le16 pan_id; + + if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR) + return -EINVAL; + + if (netif_running(dev)) + return -EBUSY; + + pan_id = nla_get_le16(info->attrs[NL802154_ATTR_PAN_ID]); + ret = rdev_set_pan_id(rdev, wpan_dev, pan_id); + if (ret < 0) + return ret; + } + + if (info->attrs[NL802154_ATTR_SHORT_ADDR]) { + __le16 short_addr; + + if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR) + return -EINVAL; + + if (netif_running(dev)) + return -EBUSY; + + short_addr = nla_get_le16(info->attrs[NL802154_ATTR_SHORT_ADDR]); + + ret = rdev_set_short_addr(rdev, wpan_dev, short_addr); + if (ret < 0) + return ret; + } + + if (info->attrs[NL802154_ATTR_MAX_FRAME_RETRIES]) { + s8 max_frame_retries; + + if (netif_running(dev)) + return -EBUSY; + + max_frame_retries = nla_get_s8( + info->attrs[NL802154_ATTR_MAX_FRAME_RETRIES]); + if (max_frame_retries < -1 || max_frame_retries > 7) + return -EINVAL; + + ret = rdev_set_max_frame_retries(rdev, wpan_dev, + max_frame_retries); + if (ret < 0) + return ret; + } + + if (info->attrs[NL802154_ATTR_MIN_BE] && + info->attrs[NL802154_ATTR_MAX_BE]) { + u8 min_be, max_be; + + if (netif_running(dev)) + return -EBUSY; + + min_be = nla_get_u8(info->attrs[NL802154_ATTR_MIN_BE]); + max_be = nla_get_u8(info->attrs[NL802154_ATTR_MAX_BE]); + if (max_be < 3 || max_be > 8 || min_be > max_be) + return -EINVAL; + + ret = rdev_set_backoff_exponent(rdev, wpan_dev, min_be, max_be); + if (ret < 0) + return ret; + } + + if (info->attrs[NL802154_ATTR_MAX_CSMA_BACKOFFS]) { + u8 max_csma_backoffs; + + if (netif_running(dev)) + return -EBUSY; + + max_csma_backoffs = nla_get_u8( + info->attrs[NL802154_ATTR_MAX_CSMA_BACKOFFS]); + if (max_csma_backoffs > 5) + return -EINVAL; + + ret = rdev_set_max_csma_backoffs(rdev, wpan_dev, + max_csma_backoffs); + if (ret < 0) + return ret; + } + + if (info->attrs[NL802154_ATTR_LBT_MODE]) { + bool mode; + + if (netif_running(dev)) + return -EBUSY; + + mode = !!nla_get_u8(info->attrs[NL802154_ATTR_LBT_MODE]); + return rdev_set_lbt_mode(rdev, wpan_dev, mode); + } + + return 0; +} + static int nl802154_new_interface(struct sk_buff *skb, struct genl_info *info) { struct cfg802154_registered_device *rdev = info->user_ptr[0]; @@ -964,6 +1066,14 @@ static const struct genl_ops nl802154_ops[] = { NL802154_FLAG_NEED_RTNL, }, { + .cmd = NL802154_CMD_SET_INTERFACE, + .doit = nl802154_set_interface, + .policy = nl802154_policy, + .flags = GENL_ADMIN_PERM, + .internal_flags = NL802154_FLAG_NEED_NETDEV | + NL802154_FLAG_NEED_RTNL, + }, + { .cmd = NL802154_CMD_DEL_INTERFACE, .doit = nl802154_del_interface, .policy = nl802154_policy, -- 2.3.5