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consolidate calculation of capabilities ie

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Reviewed by:	avatar
MFC after:	2 weeks
This commit is contained in:
Sam Leffler 2006-02-25 05:36:43 +00:00
parent 177a2f2245
commit 667dad55fc
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=155999
1 changed files with 34 additions and 47 deletions
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81
sys/net80211/ieee80211_output.c
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@ -1040,6 +1040,32 @@ ieee80211_send_probereq(struct ieee80211_node *ni,
return 0;
}
/*
* Calculate capability information for mgt frames.
*/
static u_int16_t
getcapinfo(struct ieee80211com *ic, struct ieee80211_channel *chan)
{
u_int16_t capinfo;
KASSERT(ic->ic_opmode != IEEE80211_M_STA, ("station mode"));
if (ic->ic_opmode == IEEE80211_M_HOSTAP)
capinfo = IEEE80211_CAPINFO_ESS;
else if (ic->ic_opmode == IEEE80211_M_IBSS)
capinfo = IEEE80211_CAPINFO_IBSS;
else
capinfo = 0;
if (ic->ic_flags & IEEE80211_F_PRIVACY)
capinfo |= IEEE80211_CAPINFO_PRIVACY;
if ((ic->ic_flags & IEEE80211_F_SHPREAMBLE) &&
IEEE80211_IS_CHAN_2GHZ(chan))
capinfo |= IEEE80211_CAPINFO_SHORT_PREAMBLE;
if (ic->ic_flags & IEEE80211_F_SHSLOT)
capinfo |= IEEE80211_CAPINFO_SHORT_SLOTTIME;
return capinfo;
}
/*
* Send a management frame. The node is for the destination (or ic_bss
* when in station mode). Nodes other than ic_bss have their reference
@ -1108,17 +1134,7 @@ ieee80211_send_mgmt(struct ieee80211com *ic, struct ieee80211_node *ni,
frm += 8;
*(u_int16_t *)frm = htole16(ic->ic_bss->ni_intval);
frm += 2;
if (ic->ic_opmode == IEEE80211_M_IBSS)
capinfo = IEEE80211_CAPINFO_IBSS;
else
capinfo = IEEE80211_CAPINFO_ESS;
if (ic->ic_flags & IEEE80211_F_PRIVACY)
capinfo |= IEEE80211_CAPINFO_PRIVACY;
if ((ic->ic_flags & IEEE80211_F_SHPREAMBLE) &&
IEEE80211_IS_CHAN_2GHZ(ic->ic_curchan))
capinfo |= IEEE80211_CAPINFO_SHORT_PREAMBLE;
if (ic->ic_flags & IEEE80211_F_SHSLOT)
capinfo |= IEEE80211_CAPINFO_SHORT_SLOTTIME;
capinfo = getcapinfo(ic, ic->ic_curchan);
*(u_int16_t *)frm = htole16(capinfo);
frm += 2;
@ -1259,11 +1275,9 @@ ieee80211_send_mgmt(struct ieee80211com *ic, struct ieee80211_node *ni,
if (m == NULL)
senderr(ENOMEM, is_tx_nobuf);
capinfo = 0;
if (ic->ic_opmode == IEEE80211_M_IBSS)
capinfo |= IEEE80211_CAPINFO_IBSS;
else /* IEEE80211_M_STA */
capinfo |= IEEE80211_CAPINFO_ESS;
KASSERT(ic->ic_opmode == IEEE80211_M_STA,
("wrong mode %u", ic->ic_opmode));
capinfo = IEEE80211_CAPINFO_ESS;
if (ic->ic_flags & IEEE80211_F_PRIVACY)
capinfo |= IEEE80211_CAPINFO_PRIVACY;
/*
@ -1323,14 +1337,7 @@ ieee80211_send_mgmt(struct ieee80211com *ic, struct ieee80211_node *ni,
if (m == NULL)
senderr(ENOMEM, is_tx_nobuf);
capinfo = IEEE80211_CAPINFO_ESS;
if (ic->ic_flags & IEEE80211_F_PRIVACY)
capinfo |= IEEE80211_CAPINFO_PRIVACY;
if ((ic->ic_flags & IEEE80211_F_SHPREAMBLE) &&
IEEE80211_IS_CHAN_2GHZ(ic->ic_curchan))
capinfo |= IEEE80211_CAPINFO_SHORT_PREAMBLE;
if (ic->ic_flags & IEEE80211_F_SHSLOT)
capinfo |= IEEE80211_CAPINFO_SHORT_SLOTTIME;
capinfo = getcapinfo(ic, ic->ic_curchan);
*(u_int16_t *)frm = htole16(capinfo);
frm += 2;
@ -1439,17 +1446,7 @@ ieee80211_beacon_alloc(struct ieee80211com *ic, struct ieee80211_node *ni,
frm += 8;
*(u_int16_t *)frm = htole16(ni->ni_intval);
frm += 2;
if (ic->ic_opmode == IEEE80211_M_IBSS)
capinfo = IEEE80211_CAPINFO_IBSS;
else
capinfo = IEEE80211_CAPINFO_ESS;
if (ic->ic_flags & IEEE80211_F_PRIVACY)
capinfo |= IEEE80211_CAPINFO_PRIVACY;
if ((ic->ic_flags & IEEE80211_F_SHPREAMBLE) &&
IEEE80211_IS_CHAN_2GHZ(ni->ni_chan))
capinfo |= IEEE80211_CAPINFO_SHORT_PREAMBLE;
if (ic->ic_flags & IEEE80211_F_SHSLOT)
capinfo |= IEEE80211_CAPINFO_SHORT_SLOTTIME;
capinfo = getcapinfo(ic, ni->ni_chan);
bo->bo_caps = (u_int16_t *)frm;
*(u_int16_t *)frm = htole16(capinfo);
frm += 2;
@ -1472,7 +1469,7 @@ ieee80211_beacon_alloc(struct ieee80211com *ic, struct ieee80211_node *ni,
*frm++ = 2;
*frm++ = 0; *frm++ = 0; /* TODO: ATIM window */
bo->bo_tim_len = 0;
} else {
} else if (ic->ic_opmode == IEEE80211_M_HOSTAP) {
struct ieee80211_tim_ie *tie = (struct ieee80211_tim_ie *) frm;
tie->tim_ie = IEEE80211_ELEMID_TIM;
@ -1527,17 +1524,7 @@ ieee80211_beacon_update(struct ieee80211com *ic, struct ieee80211_node *ni,
IEEE80211_BEACON_LOCK(ic);
/* XXX faster to recalculate entirely or just changes? */
if (ic->ic_opmode == IEEE80211_M_IBSS)
capinfo = IEEE80211_CAPINFO_IBSS;
else
capinfo = IEEE80211_CAPINFO_ESS;
if (ic->ic_flags & IEEE80211_F_PRIVACY)
capinfo |= IEEE80211_CAPINFO_PRIVACY;
if ((ic->ic_flags & IEEE80211_F_SHPREAMBLE) &&
IEEE80211_IS_CHAN_2GHZ(ni->ni_chan))
capinfo |= IEEE80211_CAPINFO_SHORT_PREAMBLE;
if (ic->ic_flags & IEEE80211_F_SHSLOT)
capinfo |= IEEE80211_CAPINFO_SHORT_SLOTTIME;
capinfo = getcapinfo(ic, ni->ni_chan);
*bo->bo_caps = htole16(capinfo);
if (ic->ic_flags & IEEE80211_F_WME) {