mac80211: move function ieee80211_sta_join_ibss()

this moves ieee80211_sta_join_ibss() up for the next patch (ibss merge).

Signed-off-by: Bruno Randolf <bruno@thinktube.com>
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 159 insertions, 158 deletions

diff --git a/net/mac80211/ieee80211_sta.c b/net/mac80211/ieee80211_sta.c
index a465e38c7252..a84ead49b1e6 100644
--- a/net/mac80211/ieee80211_sta.c
+++ b/net/mac80211/ieee80211_sta.c
@@ -2027,6 +2027,165 @@ void ieee80211_rx_bss_list_deinit(struct net_device *dev)
 }
 
 
+static int ieee80211_sta_join_ibss(struct net_device *dev,
+                                   struct ieee80211_if_sta *ifsta,
+                                   struct ieee80211_sta_bss *bss)
+{
+        struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+        int res, rates, i, j;
+        struct sk_buff *skb;
+        struct ieee80211_mgmt *mgmt;
+        struct ieee80211_tx_control control;
+        struct rate_selection ratesel;
+        u8 *pos;
+        struct ieee80211_sub_if_data *sdata;
+        struct ieee80211_supported_band *sband;
+
+        sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
+
+        /* Remove possible STA entries from other IBSS networks. */
+        sta_info_flush(local, NULL);
+
+        if (local->ops->reset_tsf) {
+                /* Reset own TSF to allow time synchronization work. */
+                local->ops->reset_tsf(local_to_hw(local));
+        }
+        memcpy(ifsta->bssid, bss->bssid, ETH_ALEN);
+        res = ieee80211_if_config(dev);
+        if (res)
+                return res;
+
+        local->hw.conf.beacon_int = bss->beacon_int >= 10 ? bss->beacon_int : 10;
+
+        sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+        sdata->drop_unencrypted = bss->capability &
+                WLAN_CAPABILITY_PRIVACY ? 1 : 0;
+
+        res = ieee80211_set_freq(local, bss->freq);
+
+        if (local->oper_channel->flags & IEEE80211_CHAN_NO_IBSS) {
+                printk(KERN_DEBUG "%s: IBSS not allowed on frequency "
+                       "%d MHz\n", dev->name, local->oper_channel->center_freq);
+                return -1;
+        }
+
+        /* Set beacon template */
+        skb = dev_alloc_skb(local->hw.extra_tx_headroom + 400);
+        do {
+                if (!skb)
+                        break;
+
+                skb_reserve(skb, local->hw.extra_tx_headroom);
+
+                mgmt = (struct ieee80211_mgmt *)
+                        skb_put(skb, 24 + sizeof(mgmt->u.beacon));
+                memset(mgmt, 0, 24 + sizeof(mgmt->u.beacon));
+                mgmt->frame_control = IEEE80211_FC(IEEE80211_FTYPE_MGMT,
+                                                   IEEE80211_STYPE_BEACON);
+                memset(mgmt->da, 0xff, ETH_ALEN);
+                memcpy(mgmt->sa, dev->dev_addr, ETH_ALEN);
+                memcpy(mgmt->bssid, ifsta->bssid, ETH_ALEN);
+                mgmt->u.beacon.beacon_int =
+                        cpu_to_le16(local->hw.conf.beacon_int);
+                mgmt->u.beacon.capab_info = cpu_to_le16(bss->capability);
+
+                pos = skb_put(skb, 2 + ifsta->ssid_len);
+                *pos++ = WLAN_EID_SSID;
+                *pos++ = ifsta->ssid_len;
+                memcpy(pos, ifsta->ssid, ifsta->ssid_len);
+
+                rates = bss->supp_rates_len;
+                if (rates > 8)
+                        rates = 8;
+                pos = skb_put(skb, 2 + rates);
+                *pos++ = WLAN_EID_SUPP_RATES;
+                *pos++ = rates;
+                memcpy(pos, bss->supp_rates, rates);
+
+                if (bss->band == IEEE80211_BAND_2GHZ) {
+                        pos = skb_put(skb, 2 + 1);
+                        *pos++ = WLAN_EID_DS_PARAMS;
+                        *pos++ = 1;
+                        *pos++ = ieee80211_frequency_to_channel(bss->freq);
+                }
+
+                pos = skb_put(skb, 2 + 2);
+                *pos++ = WLAN_EID_IBSS_PARAMS;
+                *pos++ = 2;
+                /* FIX: set ATIM window based on scan results */
+                *pos++ = 0;
+                *pos++ = 0;
+
+                if (bss->supp_rates_len > 8) {
+                        rates = bss->supp_rates_len - 8;
+                        pos = skb_put(skb, 2 + rates);
+                        *pos++ = WLAN_EID_EXT_SUPP_RATES;
+                        *pos++ = rates;
+                        memcpy(pos, &bss->supp_rates[8], rates);
+                }
+
+                memset(&control, 0, sizeof(control));
+                rate_control_get_rate(dev, sband, skb, &ratesel);
+                if (!ratesel.rate) {
+                        printk(KERN_DEBUG "%s: Failed to determine TX rate "
+                               "for IBSS beacon\n", dev->name);
+                        break;
+                }
+                control.vif = &sdata->vif;
+                control.tx_rate = ratesel.rate;
+                if (sdata->bss_conf.use_short_preamble &&
+                    ratesel.rate->flags & IEEE80211_RATE_SHORT_PREAMBLE)
+                        control.flags |= IEEE80211_TXCTL_SHORT_PREAMBLE;
+                control.antenna_sel_tx = local->hw.conf.antenna_sel_tx;
+                control.flags |= IEEE80211_TXCTL_NO_ACK;
+                control.retry_limit = 1;
+
+                ifsta->probe_resp = skb_copy(skb, GFP_ATOMIC);
+                if (ifsta->probe_resp) {
+                        mgmt = (struct ieee80211_mgmt *)
+                                ifsta->probe_resp->data;
+                        mgmt->frame_control =
+                                IEEE80211_FC(IEEE80211_FTYPE_MGMT,
+                                             IEEE80211_STYPE_PROBE_RESP);
+                } else {
+                        printk(KERN_DEBUG "%s: Could not allocate ProbeResp "
+                               "template for IBSS\n", dev->name);
+                }
+
+                if (local->ops->beacon_update &&
+                    local->ops->beacon_update(local_to_hw(local),
+                                             skb, &control) == 0) {
+                        printk(KERN_DEBUG "%s: Configured IBSS beacon "
+                               "template\n", dev->name);
+                        skb = NULL;
+                }
+
+                rates = 0;
+                sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
+                for (i = 0; i < bss->supp_rates_len; i++) {
+                        int bitrate = (bss->supp_rates[i] & 0x7f) * 5;
+                        for (j = 0; j < sband->n_bitrates; j++)
+                                if (sband->bitrates[j].bitrate == bitrate)
+                                        rates |= BIT(j);
+                }
+                ifsta->supp_rates_bits[local->hw.conf.channel->band] = rates;
+        } while (0);
+
+        if (skb) {
+                printk(KERN_DEBUG "%s: Failed to configure IBSS beacon "
+                       "template\n", dev->name);
+                dev_kfree_skb(skb);
+        }
+
+        ifsta->state = IEEE80211_IBSS_JOINED;
+        mod_timer(&ifsta->timer, jiffies + IEEE80211_IBSS_MERGE_INTERVAL);
+
+        ieee80211_rx_bss_put(dev, bss);
+
+        return res;
+}
+
+
 static void ieee80211_rx_bss_info(struct net_device *dev,
                                   struct ieee80211_mgmt *mgmt,
                                   size_t len,
@@ -2891,164 +3050,6 @@ static int ieee80211_sta_config_auth(struct net_device *dev,
         return -1;
 }
 
-static int ieee80211_sta_join_ibss(struct net_device *dev,
-                                   struct ieee80211_if_sta *ifsta,
-                                   struct ieee80211_sta_bss *bss)
-{
-        struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
-        int res, rates, i, j;
-        struct sk_buff *skb;
-        struct ieee80211_mgmt *mgmt;
-        struct ieee80211_tx_control control;
-        struct rate_selection ratesel;
-        u8 *pos;
-        struct ieee80211_sub_if_data *sdata;
-        struct ieee80211_supported_band *sband;
-
-        sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
-
-        /* Remove possible STA entries from other IBSS networks. */
-        sta_info_flush(local, NULL);
-
-        if (local->ops->reset_tsf) {
-                /* Reset own TSF to allow time synchronization work. */
-                local->ops->reset_tsf(local_to_hw(local));
-        }
-        memcpy(ifsta->bssid, bss->bssid, ETH_ALEN);
-        res = ieee80211_if_config(dev);
-        if (res)
-                return res;
-
-        local->hw.conf.beacon_int = bss->beacon_int >= 10 ? bss->beacon_int : 10;
-
-        sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-        sdata->drop_unencrypted = bss->capability &
-                WLAN_CAPABILITY_PRIVACY ? 1 : 0;
-
-        res = ieee80211_set_freq(local, bss->freq);
-
-        if (local->oper_channel->flags & IEEE80211_CHAN_NO_IBSS) {
-                printk(KERN_DEBUG "%s: IBSS not allowed on frequency "
-                       "%d MHz\n", dev->name, local->oper_channel->center_freq);
-                return -1;
-        }
-
-        /* Set beacon template based on scan results */
-        skb = dev_alloc_skb(local->hw.extra_tx_headroom + 400);
-        do {
-                if (!skb)
-                        break;
-
-                skb_reserve(skb, local->hw.extra_tx_headroom);
-
-                mgmt = (struct ieee80211_mgmt *)
-                        skb_put(skb, 24 + sizeof(mgmt->u.beacon));
-                memset(mgmt, 0, 24 + sizeof(mgmt->u.beacon));
-                mgmt->frame_control = IEEE80211_FC(IEEE80211_FTYPE_MGMT,
-                                                   IEEE80211_STYPE_BEACON);
-                memset(mgmt->da, 0xff, ETH_ALEN);
-                memcpy(mgmt->sa, dev->dev_addr, ETH_ALEN);
-                memcpy(mgmt->bssid, ifsta->bssid, ETH_ALEN);
-                mgmt->u.beacon.beacon_int =
-                        cpu_to_le16(local->hw.conf.beacon_int);
-                mgmt->u.beacon.capab_info = cpu_to_le16(bss->capability);
-
-                pos = skb_put(skb, 2 + ifsta->ssid_len);
-                *pos++ = WLAN_EID_SSID;
-                *pos++ = ifsta->ssid_len;
-                memcpy(pos, ifsta->ssid, ifsta->ssid_len);
-
-                rates = bss->supp_rates_len;
-                if (rates > 8)
-                        rates = 8;
-                pos = skb_put(skb, 2 + rates);
-                *pos++ = WLAN_EID_SUPP_RATES;
-                *pos++ = rates;
-                memcpy(pos, bss->supp_rates, rates);
-
-                if (bss->band == IEEE80211_BAND_2GHZ) {
-                        pos = skb_put(skb, 2 + 1);
-                        *pos++ = WLAN_EID_DS_PARAMS;
-                        *pos++ = 1;
-                        *pos++ = ieee80211_frequency_to_channel(bss->freq);
-                }
-
-                pos = skb_put(skb, 2 + 2);
-                *pos++ = WLAN_EID_IBSS_PARAMS;
-                *pos++ = 2;
-                /* FIX: set ATIM window based on scan results */
-                *pos++ = 0;
-                *pos++ = 0;
-
-                if (bss->supp_rates_len > 8) {
-                        rates = bss->supp_rates_len - 8;
-                        pos = skb_put(skb, 2 + rates);
-                        *pos++ = WLAN_EID_EXT_SUPP_RATES;
-                        *pos++ = rates;
-                        memcpy(pos, &bss->supp_rates[8], rates);
-                }
-
-                memset(&control, 0, sizeof(control));
-                rate_control_get_rate(dev, sband, skb, &ratesel);
-                if (!ratesel.rate) {
-                        printk(KERN_DEBUG "%s: Failed to determine TX rate "
-                               "for IBSS beacon\n", dev->name);
-                        break;
-                }
-                control.vif = &sdata->vif;
-                control.tx_rate = ratesel.rate;
-                if (sdata->bss_conf.use_short_preamble &&
-                    ratesel.rate->flags & IEEE80211_RATE_SHORT_PREAMBLE)
-                        control.flags |= IEEE80211_TXCTL_SHORT_PREAMBLE;
-                control.antenna_sel_tx = local->hw.conf.antenna_sel_tx;
-                control.flags |= IEEE80211_TXCTL_NO_ACK;
-                control.retry_limit = 1;
-
-                ifsta->probe_resp = skb_copy(skb, GFP_ATOMIC);
-                if (ifsta->probe_resp) {
-                        mgmt = (struct ieee80211_mgmt *)
-                                ifsta->probe_resp->data;
-                        mgmt->frame_control =
-                                IEEE80211_FC(IEEE80211_FTYPE_MGMT,
-                                             IEEE80211_STYPE_PROBE_RESP);
-                } else {
-                        printk(KERN_DEBUG "%s: Could not allocate ProbeResp "
-                               "template for IBSS\n", dev->name);
-                }
-
-                if (local->ops->beacon_update &&
-                    local->ops->beacon_update(local_to_hw(local),
-                                             skb, &control) == 0) {
-                        printk(KERN_DEBUG "%s: Configured IBSS beacon "
-                               "template based on scan results\n", dev->name);
-                        skb = NULL;
-                }
-
-                rates = 0;
-                sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
-                for (i = 0; i < bss->supp_rates_len; i++) {
-                        int bitrate = (bss->supp_rates[i] & 0x7f) * 5;
-                        for (j = 0; j < sband->n_bitrates; j++)
-                                if (sband->bitrates[j].bitrate == bitrate)
-                                        rates |= BIT(j);
-                }
-                ifsta->supp_rates_bits[local->hw.conf.channel->band] = rates;
-        } while (0);
-
-        if (skb) {
-                printk(KERN_DEBUG "%s: Failed to configure IBSS beacon "
-                       "template\n", dev->name);
-                dev_kfree_skb(skb);
-        }
-
-        ifsta->state = IEEE80211_IBSS_JOINED;
-        mod_timer(&ifsta->timer, jiffies + IEEE80211_IBSS_MERGE_INTERVAL);
-
-        ieee80211_rx_bss_put(dev, bss);
-
-        return res;
-}
-
 
 static int ieee80211_sta_create_ibss(struct net_device *dev,
                                      struct ieee80211_if_sta *ifsta)