Return-path: Received: from mail-ea0-f177.google.com ([209.85.215.177]:46901 "EHLO mail-ea0-f177.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755189Ab3KYT4W (ORCPT ); Mon, 25 Nov 2013 14:56:22 -0500 Received: by mail-ea0-f177.google.com with SMTP id n15so2742079ead.8 for ; Mon, 25 Nov 2013 11:56:21 -0800 (PST) From: Janusz Dziedzic To: linux-wireless@vger.kernel.org Cc: johannes@sipsolutions.net, "Luis R. Rodriguez" Subject: [PATCH v3 1/4] cfg80211: add reg_get_dfs_region() Date: Mon, 25 Nov 2013 20:56:09 +0100 Message-Id: <1385409372-4229-1-git-send-email-janusz.dziedzic@tieto.com> (sfid-20131125_205626_775294_E10CA0CC) Sender: linux-wireless-owner@vger.kernel.org List-ID: From: "Luis R. Rodriguez" This can be used outside of the regulatory context for any checks on the DFS region. The central cfg80211 dfs_region is always used and if it does not match with the wiphy a debug print is issued. Signed-off-by: Luis R. Rodriguez --- net/wireless/reg.c | 27 +++++++++++++++++++++++++++ net/wireless/reg.h | 1 + 2 files changed, 28 insertions(+) diff --git a/net/wireless/reg.c b/net/wireless/reg.c index ec54e1a..7d20d84 100644 --- a/net/wireless/reg.c +++ b/net/wireless/reg.c @@ -135,6 +135,33 @@ static const char *reg_dfs_region_str(enum nl80211_dfs_regions dfs_region) return "Unknown"; } +enum nl80211_dfs_regions reg_get_dfs_region(struct wiphy *wiphy) +{ + const struct ieee80211_regdomain *regd = NULL; + const struct ieee80211_regdomain *wiphy_regd = NULL; + + regd = get_cfg80211_regdom(); + if (!wiphy) + goto out; + + wiphy_regd = get_wiphy_regdom(wiphy); + if (!wiphy_regd) + goto out; + + if (wiphy_regd->dfs_region == regd->dfs_region) + goto out; + + REG_DBG_PRINT("%s: device specific dfs_region " + "(%s) disagrees with cfg80211's " + "central dfs_region (%s)\n", + dev_name(&wiphy->dev), + reg_dfs_region_str(wiphy_regd->dfs_region), + reg_dfs_region_str(regd->dfs_region)); + +out: + return regd->dfs_region; +} + static void rcu_free_regdom(const struct ieee80211_regdomain *r) { if (!r) diff --git a/net/wireless/reg.h b/net/wireless/reg.h index cc4c2c0..02bd8f4 100644 --- a/net/wireless/reg.h +++ b/net/wireless/reg.h @@ -21,6 +21,7 @@ extern const struct ieee80211_regdomain __rcu *cfg80211_regdomain; bool reg_is_valid_request(const char *alpha2); bool is_world_regdom(const char *alpha2); bool reg_supported_dfs_region(enum nl80211_dfs_regions dfs_region); +enum nl80211_dfs_regions reg_get_dfs_region(struct wiphy *wiphy); int regulatory_hint_user(const char *alpha2, enum nl80211_user_reg_hint_type user_reg_hint_type); -- 1.7.9.5