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add ieee80211_hdrspace and ieee80211_anyhdrspace to calculate the space

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for an ieee80211 header taking into account padding requirements
This commit is contained in:
Sam Leffler 2004-12-31 20:56:32 +00:00
parent 4e844c9453
commit dfefa312d9
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=139509
1 changed files with 30 additions and 0 deletions
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30
sys/net80211/ieee80211_var.h
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@ -282,6 +282,36 @@ ieee80211_key_update_end(struct ieee80211com *ic)
ic->ic_crypto.cs_key_update_end(ic);
}
/*
* XXX these need to be here for IEEE80211_F_DATAPAD
*/
/*
* Return the space occupied by the 802.11 header and any
* padding required by the driver. This works for a
* management or data frame.
*/
static __inline int
ieee80211_hdrspace(struct ieee80211com *ic, const void *data)
{
int size = ieee80211_hdrsize(data);
if (ic->ic_flags & IEEE80211_F_DATAPAD)
size = roundup(size, sizeof(u_int32_t));
return size;
}
/*
* Like ieee80211_hdrspace, but handles any type of frame.
*/
static __inline int
ieee80211_anyhdrspace(struct ieee80211com *ic, const void *data)
{
int size = ieee80211_anyhdrsize(data);
if (ic->ic_flags & IEEE80211_F_DATAPAD)
size = roundup(size, sizeof(u_int32_t));
return size;
}
#define IEEE80211_MSG_DEBUG 0x40000000 /* IFF_DEBUG equivalent */
#define IEEE80211_MSG_DUMPPKTS 0x20000000 /* IFF_LINK2 equivalant */
#define IEEE80211_MSG_CRYPTO 0x10000000 /* crypto work */