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Rewrote IBSS merge (part that updates the IBSS parameters using content from

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received beacons). Merge from branches/madwifi-dfs@3662


git-svn-id: http://madwifi-project.org/svn/madwifi/trunk@4079 0192ed92-7a03-0410-a25b-9323aeb14dbd
This commit is contained in:
benoit 2009-07-11 17:37:55 +00:00
parent d7126f8393
commit a548cc50ad
1 changed files with 51 additions and 6 deletions
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57
net80211/ieee80211_node.c
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@ -562,16 +562,25 @@ ssid_equal(const struct ieee80211_node *a, const struct ieee80211_node *b)
/*
* Join the specified IBSS/BSS network. The node is assumed to
* be passed in with a reference already held for use in assigning
* to iv_bss.
* to iv_bss. Returns 1 on success, 0 on failure.
*/
static int
ieee80211_sta_join1(struct ieee80211_node *selbs)
{
struct ieee80211vap *vap = selbs->ni_vap;
struct ieee80211com *ic = selbs->ni_ic;
struct ieee80211_node *ni_bss = vap->iv_bss;
struct ieee80211_node *obss;
int canreassoc;
/* Check vap->iv_bss at the beginning */
if (ni_bss == NULL) {
IEEE80211_DPRINTF(vap, IEEE80211_MSG_ASSOC,
"%s: BUG: ni_bss is NULL\n",
__func__);
return 0;
}
if (vap->iv_opmode == IEEE80211_M_IBSS) {
/*
* Delete unusable rates; we've already checked
@ -590,11 +599,47 @@ ieee80211_sta_join1(struct ieee80211_node *selbs)
*/
canreassoc = ((obss != NULL) &&
(vap->iv_state == IEEE80211_S_RUN) && ssid_equal(obss, selbs));
vap->iv_bss = selbs;
IEEE80211_ADDR_COPY(vap->iv_bssid, selbs->ni_bssid);
if (obss != NULL)
ieee80211_unref_node(&obss);
ic->ic_bsschan = selbs->ni_chan;
/*
* In IBSS mode, updates vap->iv_bss content from selbs. In other
* modes, set vap->iv_bss = selbs
*/
if (vap->iv_opmode == IEEE80211_M_IBSS) {
IEEE80211_ADDR_COPY(vap->iv_bssid, selbs->ni_bssid);
IEEE80211_ADDR_COPY(ni_bss->ni_bssid, selbs->ni_bssid);
/* FIXME : ni_tstamp should be updated with value from beacons
* only, not from probe responses since ni_tstamp is used to
* synchronize beacons transmission in ath_beacon_config() */
ni_bss->ni_tstamp.tsf = selbs->ni_tstamp.tsf;
ni_bss->ni_intval = selbs->ni_intval;
ni_bss->ni_capinfo = selbs->ni_capinfo;
ni_bss->ni_chan = selbs->ni_chan;
/* Since ESSID matches, we don't need to update it */
ni_bss->ni_fhdwell = selbs->ni_fhdwell;
ni_bss->ni_fhindex = selbs->ni_fhindex;
ni_bss->ni_erp = selbs->ni_erp;
ni_bss->ni_timoff = selbs->ni_timoff;
if (selbs->ni_wme_ie != NULL)
ieee80211_saveie(&ni_bss->ni_wme_ie, selbs->ni_wme_ie);
if (selbs->ni_wpa_ie != NULL)
ieee80211_saveie(&ni_bss->ni_wpa_ie, selbs->ni_wpa_ie);
if (selbs->ni_rsn_ie != NULL)
ieee80211_saveie(&ni_bss->ni_rsn_ie, selbs->ni_rsn_ie);
if (selbs->ni_ath_ie != NULL)
ieee80211_saveath(ni_bss, selbs->ni_ath_ie);
ni_bss->ni_rates = selbs->ni_rates;
/* We got a reference to selbs, so need to unref() */
ieee80211_unref_node(&selbs);
} else {
vap->iv_bss = selbs;
IEEE80211_ADDR_COPY(vap->iv_bssid, selbs->ni_bssid);
if (obss != NULL)
ieee80211_unref_node(&obss);
}
ic->ic_bsschan = vap->iv_bss->ni_chan;
ic->ic_curchan = ic->ic_bsschan;
ic->ic_curmode = ieee80211_chan2mode(ic->ic_curchan);
ic->ic_set_channel(ic);