diff options
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/ieee80211-mesh.h | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/include/linux/ieee80211-mesh.h b/include/linux/ieee80211-mesh.h index 8fbd31d9538d..482ac0c6d759 100644 --- a/include/linux/ieee80211-mesh.h +++ b/include/linux/ieee80211-mesh.h @@ -387,4 +387,20 @@ static inline bool ieee80211_mesh_preq_size_ok(const u8 *pos, u8 elen) return elen == needed; } +/* IEEE Std 802.11-2016 9.4.2.114 PREP element */ +static inline bool ieee80211_mesh_prep_size_ok(const u8 *pos, u8 elen) +{ + u8 needed; + + /* Check if the element contains flags */ + needed = sizeof(struct ieee80211_mesh_hwmp_prep_top); + if (elen < needed) + return false; + + needed += (ieee80211_mesh_preq_prep_ae_enabled(pos) ? ETH_ALEN : 0) + /* Target External Address */ + + sizeof(struct ieee80211_mesh_hwmp_prep_bottom); + return elen == needed; +} + #endif /* LINUX_IEEE80211_MESH_H */ |