Received-SPF: pass (google.com: best guess record for domain of linux-wireless-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67;
From:   Denis Kenzior <denkenz@gmail.com>
To:     Johannes Berg <johannes@sipsolutions.net>
Cc:     linux-wireless@vger.kernel.org, Denis Kenzior <denkenz@gmail.com>
Subject: [PATCH 3/3] nl80211: Include wiphy address setup in NEW_WIPHY
Date:   Wed, 19 Jun 2019 17:36:06 -0500
Message-Id: <20190619223606.4575-3-denkenz@gmail.com>
In-Reply-To: <20190619223606.4575-1-denkenz@gmail.com>
References: <20190619223606.4575-1-denkenz@gmail.com>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Sender: linux-wireless-owner@vger.kernel.org
Precedence: bulk

Include wiphy address setup in wiphy dumps and new wiphy events.  The
wiphy permanent address is exposed as ATTR_MAC.  If addr_mask is setup,
then it is included as ATTR_MAC_MASK attribute.  If multiple addresses
are available, then their are exposed in a nested ATTR_MAC_ADDRS array.

This information is already exposed via sysfs, but it makes sense to
include it in the wiphy dump as well.

Signed-off-by: Denis Kenzior <denkenz@gmail.com>
---
 net/wireless/nl80211.c | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 26bab9560c0f..65f3d47d9b63 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -1852,6 +1852,31 @@ static int nl80211_send_wiphy(struct cfg80211_registered_device *rdev,
 
 	switch (state->split_start) {
 	case 0:
+		if (nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN,
+			    rdev->wiphy.perm_addr))
+			goto nla_put_failure;
+
+		if (!is_zero_ether_addr(rdev->wiphy.addr_mask) &&
+		    nla_put(msg, NL80211_ATTR_MAC_MASK, ETH_ALEN,
+			    rdev->wiphy.addr_mask))
+			goto nla_put_failure;
+
+		if (rdev->wiphy.n_addresses > 1) {
+			void *attr;
+
+			attr = nla_nest_start_noflag(msg,
+						     NL80211_ATTR_MAC_ADDRS);
+			if (!attr)
+				goto nla_put_failure;
+
+			for (i = 0; i < rdev->wiphy.n_addresses; i++)
+				if (nla_put(msg, i + 1, ETH_ALEN,
+					    rdev->wiphy.addresses[i].addr))
+					goto nla_put_failure;
+
+			nla_nest_end(msg, attr);
+		}
+
 		if (nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
 			       rdev->wiphy.retry_short) ||
 		    nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
-- 
2.21.0