diff options
Diffstat (limited to 'net/mac80211/util.c')
| -rw-r--r-- | net/mac80211/util.c | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/net/mac80211/util.c b/net/mac80211/util.c index 790c32f894c..6b50b6c12da 100644 --- a/net/mac80211/util.c +++ b/net/mac80211/util.c @@ -26,6 +26,9 @@ #include "ieee80211_i.h" #include "ieee80211_rate.h" +#ifdef CONFIG_MAC80211_MESH +#include "mesh.h" +#endif #include "wme.h" /* privid for wiphys to determine whether they belong to us or not */ @@ -146,6 +149,26 @@ int ieee80211_get_hdrlen_from_skb(const struct sk_buff *skb) } EXPORT_SYMBOL(ieee80211_get_hdrlen_from_skb); +#ifdef CONFIG_MAC80211_MESH +int ieee80211_get_mesh_hdrlen(struct ieee80211s_hdr *meshhdr) +{ + int ae = meshhdr->flags & IEEE80211S_FLAGS_AE; + /* 7.1.3.5a.2 */ + switch (ae) { + case 0: + return 5; + case 1: + return 11; + case 2: + return 17; + case 3: + return 23; + default: + return 5; + } +} +#endif + void ieee80211_tx_set_iswep(struct ieee80211_txrx_data *tx) { struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) tx->skb->data; @@ -395,3 +418,31 @@ void ieee80211_iterate_active_interfaces( rcu_read_unlock(); } EXPORT_SYMBOL_GPL(ieee80211_iterate_active_interfaces); + +#ifdef CONFIG_MAC80211_MESH +/** + * ieee80211_new_mesh_header - create a new mesh header + * @meshhdr: uninitialized mesh header + * @sdata: mesh interface to be used + * + * Return the header length. + */ +int ieee80211_new_mesh_header(struct ieee80211s_hdr *meshhdr, + struct ieee80211_sub_if_data *sdata) +{ + meshhdr->flags = 0; + meshhdr->ttl = sdata->u.sta.mshcfg.dot11MeshTTL; + + meshhdr->seqnum[0] = sdata->u.sta.mesh_seqnum[0]++; + meshhdr->seqnum[1] = sdata->u.sta.mesh_seqnum[1]; + meshhdr->seqnum[2] = sdata->u.sta.mesh_seqnum[2]; + + if (sdata->u.sta.mesh_seqnum[0] == 0) { + sdata->u.sta.mesh_seqnum[1]++; + if (sdata->u.sta.mesh_seqnum[1] == 0) + sdata->u.sta.mesh_seqnum[2]++; + } + + return 5; +} +#endif |