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author | Johannes Berg <johannes.berg@intel.com> | 2015-03-31 15:36:22 +0200 |
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committer | Johannes Berg <johannes.berg@intel.com> | 2015-04-07 13:56:41 +0200 |
commit | 29464ccc78f1e8f77b8c37ddbe95af46d13c2ec2 (patch) | |
tree | f5cc33762959fb5346b111e4123160a928691e90 /net/wireless | |
parent | mac80211: add an intermediate software queue implementation (diff) | |
download | linux-29464ccc78f1e8f77b8c37ddbe95af46d13c2ec2.tar.xz linux-29464ccc78f1e8f77b8c37ddbe95af46d13c2ec2.zip |
cfg80211: move IE split utilities here from mac80211
As the next patch will require the IE splitting utility functions
in cfg80211, move them there from mac80211.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/wireless')
-rw-r--r-- | net/wireless/util.c | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/net/wireless/util.c b/net/wireless/util.c index f218b151530a..70051ab52f4f 100644 --- a/net/wireless/util.c +++ b/net/wireless/util.c @@ -1290,6 +1290,47 @@ int cfg80211_get_p2p_attr(const u8 *ies, unsigned int len, } EXPORT_SYMBOL(cfg80211_get_p2p_attr); +static bool ieee80211_id_in_list(const u8 *ids, int n_ids, u8 id) +{ + int i; + + for (i = 0; i < n_ids; i++) + if (ids[i] == id) + return true; + return false; +} + +size_t ieee80211_ie_split_ric(const u8 *ies, size_t ielen, + const u8 *ids, int n_ids, + const u8 *after_ric, int n_after_ric, + size_t offset) +{ + size_t pos = offset; + + while (pos < ielen && ieee80211_id_in_list(ids, n_ids, ies[pos])) { + if (ies[pos] == WLAN_EID_RIC_DATA && n_after_ric) { + pos += 2 + ies[pos + 1]; + + while (pos < ielen && + !ieee80211_id_in_list(after_ric, n_after_ric, + ies[pos])) + pos += 2 + ies[pos + 1]; + } else { + pos += 2 + ies[pos + 1]; + } + } + + return pos; +} +EXPORT_SYMBOL(ieee80211_ie_split_ric); + +size_t ieee80211_ie_split(const u8 *ies, size_t ielen, + const u8 *ids, int n_ids, size_t offset) +{ + return ieee80211_ie_split_ric(ies, ielen, ids, n_ids, NULL, 0, offset); +} +EXPORT_SYMBOL(ieee80211_ie_split); + bool ieee80211_operating_class_to_band(u8 operating_class, enum ieee80211_band *band) { |