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| author | Johannes Berg | 2018-05-28 15:47:41 +0200 |
|---|---|---|
| committer | Johannes Berg | 2018-06-15 13:34:40 +0200 |
| commit | b9771d41aee7aa3207b985422a1cc19e8342bc50 (patch) | |
| tree | 13413533108492a4bb95aa282abf426fab1d707e /net/mac80211/util.c | |
| parent | nl80211: add scan features for improved scan privacy (diff) | |
| download | kernel-qcow2-linux-b9771d41aee7aa3207b985422a1cc19e8342bc50.tar.gz kernel-qcow2-linux-b9771d41aee7aa3207b985422a1cc19e8342bc50.tar.xz kernel-qcow2-linux-b9771d41aee7aa3207b985422a1cc19e8342bc50.zip | |
mac80211: support scan features for improved scan privacy
Support the new random SN and minimal probe request contents
scan flags for the case of software scan - for hardware scan
the drivers need to opt in, but may need to do only that,
depending on their implementation.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Diffstat (limited to 'net/mac80211/util.c')
| -rw-r--r-- | net/mac80211/util.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/net/mac80211/util.c b/net/mac80211/util.c index 0325133552ad..b744b10465c3 100644 --- a/net/mac80211/util.c +++ b/net/mac80211/util.c @@ -1433,6 +1433,9 @@ static int ieee80211_build_preq_ies_band(struct ieee80211_local *local, chandef->chan->center_freq); } + if (flags & IEEE80211_PROBE_FLAG_MIN_CONTENT) + goto done; + /* insert custom IEs that go before HT */ if (ie && ie_len) { static const u8 before_ht[] = { @@ -1510,6 +1513,7 @@ static int ieee80211_build_preq_ies_band(struct ieee80211_local *local, return pos - buffer; out_err: WARN_ONCE(1, "not enough space for preq IEs\n"); + done: return pos - buffer; } |