2019-06-20 22:08:27

by Denis Kenzior

[permalink] [raw]
Subject: [PATCH v2 3/3] nl80211: Include wiphy address setup in NEW_WIPHY

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 <[email protected]>
---
net/wireless/nl80211.c | 25 +++++++++++++++++++++++++
1 file changed, 25 insertions(+)

Changes in v2:
- Move from case 0 to 9

diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 26bab9560c0f..f4b3e6f1dfbf 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -2166,6 +2166,31 @@ static int nl80211_send_wiphy(struct cfg80211_registered_device *rdev,
rdev->wiphy.vht_capa_mod_mask))
goto nla_put_failure;

+ 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);
+ }
+
state->split_start++;
break;
case 10:
--
2.21.0