2008-11-14 23:35:03 +00:00
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--- a/net80211/ieee80211_var.h
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+++ b/net80211/ieee80211_var.h
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@@ -198,6 +198,7 @@ struct ieee80211vap {
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u_int32_t iv_debug; /* debug msg flags */
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struct ieee80211_stats iv_stats; /* statistics */
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+ int iv_max_nodes;
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int iv_monitor_nods_only; /* in monitor mode only nods traffic */
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int iv_monitor_txf_len; /* in monitor mode, truncate tx packets */
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int iv_monitor_phy_errors; /* in monitor mode, accept phy errors */
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--- a/net80211/ieee80211_ioctl.h
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+++ b/net80211/ieee80211_ioctl.h
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@@ -650,6 +650,7 @@ enum {
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IEEE80211_PARAM_RSSI_DIS_THR = 80, /* rssi threshold for disconnection */
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IEEE80211_PARAM_RSSI_DIS_COUNT = 81, /* counter for rssi threshold */
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IEEE80211_PARAM_WDS_SEP = 82, /* move wds stations into separate interfaces */
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+ IEEE80211_PARAM_MAXASSOC = 83, /* maximum associated stations */
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};
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#define SIOCG80211STATS (SIOCDEVPRIVATE+2)
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--- a/net80211/ieee80211_wireless.c
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+++ b/net80211/ieee80211_wireless.c
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@@ -2875,6 +2875,12 @@ ieee80211_ioctl_setparam(struct net_devi
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else
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vap->iv_flags_ext &= ~IEEE80211_FEXT_WDSSEP;
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break;
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+ case IEEE80211_PARAM_MAXASSOC:
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+ if (vap->iv_opmode != IEEE80211_M_HOSTAP)
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+ retv = -EINVAL;
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+ else
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+ vap->iv_max_nodes = value;
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+ break;
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#ifdef ATH_REVERSE_ENGINEERING
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case IEEE80211_PARAM_DUMPREGS:
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ieee80211_dump_registers(dev, info, w, extra);
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@@ -3234,6 +3240,9 @@ ieee80211_ioctl_getparam(struct net_devi
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case IEEE80211_PARAM_WDS_SEP:
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param[0] = !!(vap->iv_flags_ext & IEEE80211_FEXT_WDSSEP);
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break;
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+ case IEEE80211_PARAM_MAXASSOC:
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+ param[0] = vap->iv_max_nodes;
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+ break;
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default:
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return -EOPNOTSUPP;
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}
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@@ -5789,6 +5798,10 @@ static const struct iw_priv_args ieee802
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IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "wdssep"},
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{ IEEE80211_PARAM_WDS_SEP,
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0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "get_wdssep"},
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+ { IEEE80211_PARAM_MAXASSOC,
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+ IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "maxassoc"},
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+ { IEEE80211_PARAM_MAXASSOC,
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+ 0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "get_maxassoc"},
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#ifdef ATH_REVERSE_ENGINEERING
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/*
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--- a/net80211/ieee80211_input.c
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+++ b/net80211/ieee80211_input.c
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2010-11-12 15:14:27 +00:00
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@@ -4020,7 +4020,26 @@ ieee80211_recv_mgmt(struct ieee80211vap
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2008-11-14 23:35:03 +00:00
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vap->iv_stats.is_rx_assoc_norate++;
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return;
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}
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+ if (vap->iv_max_nodes > 0) {
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+ unsigned int active_nodes = 0;
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+ struct ieee80211_node *tni;
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2010-11-12 15:14:27 +00:00
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2008-11-14 23:35:03 +00:00
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+ IEEE80211_NODE_TABLE_LOCK_IRQ(&ic->ic_sta);
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+ TAILQ_FOREACH(tni, &ic->ic_sta.nt_node, ni_list) {
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+ if (tni->ni_vap != vap)
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+ continue;
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+ if (tni->ni_associd == 0)
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+ continue;
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+ active_nodes++;
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+ }
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+ IEEE80211_NODE_TABLE_UNLOCK_IRQ(&ic->ic_sta);
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2010-11-12 15:14:27 +00:00
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+
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2008-11-14 23:35:03 +00:00
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+ if (active_nodes >= vap->iv_max_nodes) {
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+ /* too many nodes connected */
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+ ieee80211_node_leave(ni);
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+ return;
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+ }
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+ }
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if (ni->ni_associd != 0 &&
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IEEE80211_IS_CHAN_ANYG(ic->ic_bsschan)) {
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if ((ni->ni_capinfo & IEEE80211_CAPINFO_SHORT_SLOTTIME)
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