diff options
Diffstat (limited to 'target/linux/s3c24xx/files-2.6.31/drivers/ar6000/wlan/wlan_node.c')
| -rw-r--r-- | target/linux/s3c24xx/files-2.6.31/drivers/ar6000/wlan/wlan_node.c | 371 |
1 files changed, 0 insertions, 371 deletions
diff --git a/target/linux/s3c24xx/files-2.6.31/drivers/ar6000/wlan/wlan_node.c b/target/linux/s3c24xx/files-2.6.31/drivers/ar6000/wlan/wlan_node.c deleted file mode 100644 index b12484597f..0000000000 --- a/target/linux/s3c24xx/files-2.6.31/drivers/ar6000/wlan/wlan_node.c +++ /dev/null @@ -1,371 +0,0 @@ -/*- - * Copyright (c) 2001 Atsushi Onoe - * Copyright (c) 2002-2004 Sam Leffler, Errno Consulting - * Copyright (c) 2004-2005 Atheros Communications - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR - * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES - * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. - * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, - * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT - * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF - * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - * $Id: //depot/sw/releases/olca2.0-GPL/host/wlan/src/wlan_node.c#1 $ - */ -/* - * IEEE 802.11 node handling support. - */ -#include <a_config.h> -#include <athdefs.h> -#include <a_types.h> -#include <a_osapi.h> -#include <a_debug.h> -#include <ieee80211.h> -#include <wlan_api.h> -#include <ieee80211_node.h> -#include <htc_api.h> -#include <wmi.h> -#include <wmi_api.h> - -static void wlan_node_timeout(A_ATH_TIMER arg); -static bss_t * _ieee80211_find_node(struct ieee80211_node_table *nt, - const A_UINT8 *macaddr); - -bss_t * -wlan_node_alloc(struct ieee80211_node_table *nt, int wh_size) -{ - bss_t *ni; - - ni = A_MALLOC_NOWAIT(sizeof(bss_t)); - - if (ni != NULL) { - ni->ni_buf = A_MALLOC_NOWAIT(wh_size); - if (ni->ni_buf == NULL) { - A_FREE(ni); - ni = NULL; - return ni; - } - } else { - return ni; - } - - /* Make sure our lists are clean */ - ni->ni_list_next = NULL; - ni->ni_list_prev = NULL; - ni->ni_hash_next = NULL; - ni->ni_hash_prev = NULL; - - // - // ni_scangen never initialized before and during suspend/resume of winmobile, customer (LG/SEMCO) identified - // that some junk has been stored in this, due to this scan list didn't properly updated - // - ni->ni_scangen = 0; - - return ni; -} - -void -wlan_node_free(bss_t *ni) -{ - if (ni->ni_buf != NULL) { - A_FREE(ni->ni_buf); - } - A_FREE(ni); -} - -void -wlan_setup_node(struct ieee80211_node_table *nt, bss_t *ni, - const A_UINT8 *macaddr) -{ - int hash; - - A_MEMCPY(ni->ni_macaddr, macaddr, IEEE80211_ADDR_LEN); - hash = IEEE80211_NODE_HASH(macaddr); - ieee80211_node_initref(ni); /* mark referenced */ - - ni->ni_tstamp = A_GET_MS(WLAN_NODE_INACT_TIMEOUT_MSEC); - IEEE80211_NODE_LOCK_BH(nt); - - /* Insert at the end of the node list */ - ni->ni_list_next = NULL; - ni->ni_list_prev = nt->nt_node_last; - if(nt->nt_node_last != NULL) - { - nt->nt_node_last->ni_list_next = ni; - } - nt->nt_node_last = ni; - if(nt->nt_node_first == NULL) - { - nt->nt_node_first = ni; - } - - /* Insert into the hash list i.e. the bucket */ - if((ni->ni_hash_next = nt->nt_hash[hash]) != NULL) - { - nt->nt_hash[hash]->ni_hash_prev = ni; - } - ni->ni_hash_prev = NULL; - nt->nt_hash[hash] = ni; - - if (!nt->isTimerArmed) { - A_TIMEOUT_MS(&nt->nt_inact_timer, WLAN_NODE_INACT_TIMEOUT_MSEC, 0); - nt->isTimerArmed = TRUE; - } - - IEEE80211_NODE_UNLOCK_BH(nt); -} - -static bss_t * -_ieee80211_find_node(struct ieee80211_node_table *nt, - const A_UINT8 *macaddr) -{ - bss_t *ni; - int hash; - - IEEE80211_NODE_LOCK_ASSERT(nt); - - hash = IEEE80211_NODE_HASH(macaddr); - for(ni = nt->nt_hash[hash]; ni; ni = ni->ni_hash_next) { - if (IEEE80211_ADDR_EQ(ni->ni_macaddr, macaddr)) { - ieee80211_node_incref(ni); /* mark referenced */ - return ni; - } - } - return NULL; -} - -bss_t * -wlan_find_node(struct ieee80211_node_table *nt, const A_UINT8 *macaddr) -{ - bss_t *ni; - - IEEE80211_NODE_LOCK(nt); - ni = _ieee80211_find_node(nt, macaddr); - IEEE80211_NODE_UNLOCK(nt); - return ni; -} - -/* - * Reclaim a node. If this is the last reference count then - * do the normal free work. Otherwise remove it from the node - * table and mark it gone by clearing the back-reference. - */ -void -wlan_node_reclaim(struct ieee80211_node_table *nt, bss_t *ni) -{ - IEEE80211_NODE_LOCK(nt); - - if(ni->ni_list_prev == NULL) - { - /* First in list so fix the list head */ - nt->nt_node_first = ni->ni_list_next; - } - else - { - ni->ni_list_prev->ni_list_next = ni->ni_list_next; - } - - if(ni->ni_list_next == NULL) - { - /* Last in list so fix list tail */ - nt->nt_node_last = ni->ni_list_prev; - } - else - { - ni->ni_list_next->ni_list_prev = ni->ni_list_prev; - } - - if(ni->ni_hash_prev == NULL) - { - /* First in list so fix the list head */ - int hash; - hash = IEEE80211_NODE_HASH(ni->ni_macaddr); - nt->nt_hash[hash] = ni->ni_hash_next; - } - else - { - ni->ni_hash_prev->ni_hash_next = ni->ni_hash_next; - } - - if(ni->ni_hash_next != NULL) - { - ni->ni_hash_next->ni_hash_prev = ni->ni_hash_prev; - } - wlan_node_free(ni); - - IEEE80211_NODE_UNLOCK(nt); -} - -static void -wlan_node_dec_free(bss_t *ni) -{ - if (ieee80211_node_dectestref(ni)) { - wlan_node_free(ni); - } -} - -void -wlan_free_allnodes(struct ieee80211_node_table *nt) -{ - bss_t *ni; - - while ((ni = nt->nt_node_first) != NULL) { - wlan_node_reclaim(nt, ni); - } -} - -void -wlan_iterate_nodes(struct ieee80211_node_table *nt, wlan_node_iter_func *f, - void *arg) -{ - bss_t *ni; - A_UINT32 gen; - - gen = ++nt->nt_scangen; - - IEEE80211_NODE_LOCK(nt); - for (ni = nt->nt_node_first; ni; ni = ni->ni_list_next) { - if (ni->ni_scangen != gen) { - ni->ni_scangen = gen; - (void) ieee80211_node_incref(ni); - (*f)(arg, ni); - wlan_node_dec_free(ni); - } - } - IEEE80211_NODE_UNLOCK(nt); -} - -/* - * Node table support. - */ -void -wlan_node_table_init(void *wmip, struct ieee80211_node_table *nt) -{ - int i; - - AR_DEBUG_PRINTF(ATH_DEBUG_WLAN, ("node table = 0x%x\n", (A_UINT32)nt)); - IEEE80211_NODE_LOCK_INIT(nt); - - nt->nt_node_first = nt->nt_node_last = NULL; - for(i = 0; i < IEEE80211_NODE_HASHSIZE; i++) - { - nt->nt_hash[i] = NULL; - } - A_INIT_TIMER(&nt->nt_inact_timer, wlan_node_timeout, nt); - nt->isTimerArmed = FALSE; - nt->nt_wmip = wmip; -} - -static void -wlan_node_timeout(A_ATH_TIMER arg) -{ - struct ieee80211_node_table *nt = (struct ieee80211_node_table *)arg; - bss_t *bss, *nextBss; - A_UINT8 myBssid[IEEE80211_ADDR_LEN], reArmTimer = FALSE; - - wmi_get_current_bssid(nt->nt_wmip, myBssid); - - bss = nt->nt_node_first; - while (bss != NULL) - { - nextBss = bss->ni_list_next; - if (A_MEMCMP(myBssid, bss->ni_macaddr, sizeof(myBssid)) != 0) - { - - if (bss->ni_tstamp <= A_GET_MS(0)) - { - /* - * free up all but the current bss - if set - */ - wlan_node_reclaim(nt, bss); - } - else - { - /* - * Re-arm timer, only when we have a bss other than - * current bss AND it is not aged-out. - */ - reArmTimer = TRUE; - } - } - bss = nextBss; - } - - if(reArmTimer) - A_TIMEOUT_MS(&nt->nt_inact_timer, WLAN_NODE_INACT_TIMEOUT_MSEC, 0); - - nt->isTimerArmed = reArmTimer; -} - -void -wlan_node_table_cleanup(struct ieee80211_node_table *nt) -{ - A_UNTIMEOUT(&nt->nt_inact_timer); - A_DELETE_TIMER(&nt->nt_inact_timer); - wlan_free_allnodes(nt); - IEEE80211_NODE_LOCK_DESTROY(nt); -} - -bss_t * -wlan_find_Ssidnode (struct ieee80211_node_table *nt, A_UCHAR *pSsid, - A_UINT32 ssidLength, A_BOOL bIsWPA2) -{ - bss_t *ni = NULL; - A_UCHAR *pIESsid = NULL; - - IEEE80211_NODE_LOCK (nt); - - for (ni = nt->nt_node_first; ni; ni = ni->ni_list_next) { - pIESsid = ni->ni_cie.ie_ssid; - if (pIESsid[1] <= 32) { - - // Step 1 : Check SSID - if (0x00 == memcmp (pSsid, &pIESsid[2], ssidLength)) { - - // Step 2 : if SSID matches, check WPA or WPA2 - if (TRUE == bIsWPA2 && NULL != ni->ni_cie.ie_rsn) { - ieee80211_node_incref (ni); /* mark referenced */ - IEEE80211_NODE_UNLOCK (nt); - return ni; - } - if (FALSE == bIsWPA2 && NULL != ni->ni_cie.ie_wpa) { - ieee80211_node_incref(ni); /* mark referenced */ - IEEE80211_NODE_UNLOCK (nt); - return ni; - } - } - } - } - - IEEE80211_NODE_UNLOCK (nt); - - return NULL; -} - -void -wlan_node_return (struct ieee80211_node_table *nt, bss_t *ni) -{ - IEEE80211_NODE_LOCK (nt); - wlan_node_dec_free (ni); - IEEE80211_NODE_UNLOCK (nt); -} |