diff options
author | Adrian Bunk <bunk@kernel.org> | 2008-03-04 15:26:14 -0800 |
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committer | John W. Linville <linville@tuxdriver.com> | 2008-03-13 16:02:31 -0400 |
commit | 7524d7d6de5d5d3f081de8cf5479819fad339661 (patch) | |
tree | a07c9892a6b1ac65491a6c78b60ca378ca8940f4 /net/ieee80211/softmac/ieee80211softmac_auth.c | |
parent | 2079fcdc06ea01c084044c348dbcd7b3e335ad49 (diff) | |
download | linux-3.10-7524d7d6de5d5d3f081de8cf5479819fad339661.tar.gz linux-3.10-7524d7d6de5d5d3f081de8cf5479819fad339661.tar.bz2 linux-3.10-7524d7d6de5d5d3f081de8cf5479819fad339661.zip |
the scheduled ieee80211 softmac removal
Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net/ieee80211/softmac/ieee80211softmac_auth.c')
-rw-r--r-- | net/ieee80211/softmac/ieee80211softmac_auth.c | 413 |
1 files changed, 0 insertions, 413 deletions
diff --git a/net/ieee80211/softmac/ieee80211softmac_auth.c b/net/ieee80211/softmac/ieee80211softmac_auth.c deleted file mode 100644 index 1a96c257257..00000000000 --- a/net/ieee80211/softmac/ieee80211softmac_auth.c +++ /dev/null @@ -1,413 +0,0 @@ -/* - * This file contains the softmac's authentication logic. - * - * Copyright (c) 2005, 2006 Johannes Berg <johannes@sipsolutions.net> - * Joseph Jezak <josejx@gentoo.org> - * Larry Finger <Larry.Finger@lwfinger.net> - * Danny van Dyk <kugelfang@gentoo.org> - * Michael Buesch <mbuesch@freenet.de> - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of version 2 of the GNU General Public License as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA - * - * The full GNU General Public License is included in this distribution in the - * file called COPYING. - */ - -#include "ieee80211softmac_priv.h" - -static void ieee80211softmac_auth_queue(struct work_struct *work); - -/* Queues an auth request to the desired AP */ -int -ieee80211softmac_auth_req(struct ieee80211softmac_device *mac, - struct ieee80211softmac_network *net) -{ - struct ieee80211softmac_auth_queue_item *auth; - unsigned long flags; - DECLARE_MAC_BUF(mac2); - - if (net->authenticating || net->authenticated) - return 0; - net->authenticating = 1; - - /* Add the network if it's not already added */ - ieee80211softmac_add_network(mac, net); - - dprintk(KERN_NOTICE PFX "Queueing Authentication Request to %s\n", print_mac(mac2, net->bssid)); - /* Queue the auth request */ - auth = (struct ieee80211softmac_auth_queue_item *) - kmalloc(sizeof(struct ieee80211softmac_auth_queue_item), GFP_KERNEL); - if(auth == NULL) - return -ENOMEM; - - auth->net = net; - auth->mac = mac; - auth->retry = IEEE80211SOFTMAC_AUTH_RETRY_LIMIT; - auth->state = IEEE80211SOFTMAC_AUTH_OPEN_REQUEST; - INIT_DELAYED_WORK(&auth->work, ieee80211softmac_auth_queue); - - /* Lock (for list) */ - spin_lock_irqsave(&mac->lock, flags); - - /* add to list */ - list_add_tail(&auth->list, &mac->auth_queue); - queue_delayed_work(mac->wq, &auth->work, 0); - spin_unlock_irqrestore(&mac->lock, flags); - - return 0; -} - - -/* Sends an auth request to the desired AP and handles timeouts */ -static void -ieee80211softmac_auth_queue(struct work_struct *work) -{ - struct ieee80211softmac_device *mac; - struct ieee80211softmac_auth_queue_item *auth; - struct ieee80211softmac_network *net; - unsigned long flags; - DECLARE_MAC_BUF(mac2); - - auth = container_of(work, struct ieee80211softmac_auth_queue_item, - work.work); - net = auth->net; - mac = auth->mac; - - if(auth->retry > 0) { - /* Switch to correct channel for this network */ - mac->set_channel(mac->dev, net->channel); - - /* Lock and set flags */ - spin_lock_irqsave(&mac->lock, flags); - if (unlikely(!mac->running)) { - /* Prevent reschedule on workqueue flush */ - spin_unlock_irqrestore(&mac->lock, flags); - return; - } - net->authenticated = 0; - /* add a timeout call so we eventually give up waiting for an auth reply */ - queue_delayed_work(mac->wq, &auth->work, IEEE80211SOFTMAC_AUTH_TIMEOUT); - auth->retry--; - spin_unlock_irqrestore(&mac->lock, flags); - if (ieee80211softmac_send_mgt_frame(mac, auth->net, IEEE80211_STYPE_AUTH, auth->state)) - dprintk(KERN_NOTICE PFX "Sending Authentication Request to %s failed (this shouldn't happen, wait for the timeout).\n", - print_mac(mac2, net->bssid)); - else - dprintk(KERN_NOTICE PFX "Sent Authentication Request to %s.\n", print_mac(mac2, net->bssid)); - return; - } - - printkl(KERN_WARNING PFX "Authentication timed out with %s\n", print_mac(mac2, net->bssid)); - /* Remove this item from the queue */ - spin_lock_irqsave(&mac->lock, flags); - net->authenticating = 0; - ieee80211softmac_call_events_locked(mac, IEEE80211SOFTMAC_EVENT_AUTH_TIMEOUT, net); - cancel_delayed_work(&auth->work); /* just to make sure... */ - list_del(&auth->list); - spin_unlock_irqrestore(&mac->lock, flags); - /* Free it */ - kfree(auth); -} - -/* Sends a response to an auth challenge (for shared key auth). */ -static void -ieee80211softmac_auth_challenge_response(struct work_struct *work) -{ - struct ieee80211softmac_auth_queue_item *aq = - container_of(work, struct ieee80211softmac_auth_queue_item, - work.work); - - /* Send our response */ - ieee80211softmac_send_mgt_frame(aq->mac, aq->net, IEEE80211_STYPE_AUTH, aq->state); -} - -/* Handle the auth response from the AP - * This should be registered with ieee80211 as handle_auth - */ -int -ieee80211softmac_auth_resp(struct net_device *dev, struct ieee80211_auth *auth) -{ - - struct list_head *list_ptr; - struct ieee80211softmac_device *mac = ieee80211_priv(dev); - struct ieee80211softmac_auth_queue_item *aq = NULL; - struct ieee80211softmac_network *net = NULL; - unsigned long flags; - u8 * data; - DECLARE_MAC_BUF(mac2); - - if (unlikely(!mac->running)) - return -ENODEV; - - /* Find correct auth queue item */ - spin_lock_irqsave(&mac->lock, flags); - list_for_each(list_ptr, &mac->auth_queue) { - aq = list_entry(list_ptr, struct ieee80211softmac_auth_queue_item, list); - net = aq->net; - if (!memcmp(net->bssid, auth->header.addr2, ETH_ALEN)) - break; - else - aq = NULL; - } - spin_unlock_irqrestore(&mac->lock, flags); - - /* Make sure that we've got an auth queue item for this request */ - if(aq == NULL) - { - dprintkl(KERN_DEBUG PFX "Authentication response received from %s but no queue item exists.\n", print_mac(mac2, auth->header.addr2)); - /* Error #? */ - return -1; - } - - /* Check for out of order authentication */ - if(!net->authenticating) - { - dprintkl(KERN_DEBUG PFX "Authentication response received from %s but did not request authentication.\n",print_mac(mac2, auth->header.addr2)); - return -1; - } - - /* Parse the auth packet */ - switch(le16_to_cpu(auth->algorithm)) { - case WLAN_AUTH_OPEN: - /* Check the status code of the response */ - - switch(le16_to_cpu(auth->status)) { - case WLAN_STATUS_SUCCESS: - /* Update the status to Authenticated */ - spin_lock_irqsave(&mac->lock, flags); - net->authenticating = 0; - net->authenticated = 1; - spin_unlock_irqrestore(&mac->lock, flags); - - /* Send event */ - printkl(KERN_NOTICE PFX "Open Authentication completed with %s\n", print_mac(mac2, net->bssid)); - ieee80211softmac_call_events(mac, IEEE80211SOFTMAC_EVENT_AUTHENTICATED, net); - break; - default: - /* Lock and reset flags */ - spin_lock_irqsave(&mac->lock, flags); - net->authenticated = 0; - net->authenticating = 0; - spin_unlock_irqrestore(&mac->lock, flags); - - printkl(KERN_NOTICE PFX "Open Authentication with %s failed, error code: %i\n", - print_mac(mac2, net->bssid), le16_to_cpup(&auth->status)); - /* Count the error? */ - break; - } - goto free_aq; - break; - case WLAN_AUTH_SHARED_KEY: - /* Figure out where we are in the process */ - switch(le16_to_cpu(auth->transaction)) { - case IEEE80211SOFTMAC_AUTH_SHARED_CHALLENGE: - /* Check to make sure we have a challenge IE */ - data = (u8 *)auth->info_element; - if (*data++ != MFIE_TYPE_CHALLENGE) { - printkl(KERN_NOTICE PFX "Shared Key Authentication failed due to a missing challenge.\n"); - break; - } - /* Save the challenge */ - spin_lock_irqsave(&mac->lock, flags); - net->challenge_len = *data++; - if (net->challenge_len > WLAN_AUTH_CHALLENGE_LEN) - net->challenge_len = WLAN_AUTH_CHALLENGE_LEN; - kfree(net->challenge); - net->challenge = kmemdup(data, net->challenge_len, - GFP_ATOMIC); - if (net->challenge == NULL) { - printkl(KERN_NOTICE PFX "Shared Key " - "Authentication failed due to " - "memory shortage.\n"); - spin_unlock_irqrestore(&mac->lock, flags); - break; - } - aq->state = IEEE80211SOFTMAC_AUTH_SHARED_RESPONSE; - - /* We reuse the work struct from the auth request here. - * It is safe to do so as each one is per-request, and - * at this point (dealing with authentication response) - * we have obviously already sent the initial auth - * request. */ - cancel_delayed_work(&aq->work); - INIT_DELAYED_WORK(&aq->work, &ieee80211softmac_auth_challenge_response); - queue_delayed_work(mac->wq, &aq->work, 0); - spin_unlock_irqrestore(&mac->lock, flags); - return 0; - case IEEE80211SOFTMAC_AUTH_SHARED_PASS: - kfree(net->challenge); - net->challenge = NULL; - net->challenge_len = 0; - /* Check the status code of the response */ - switch(auth->status) { - case WLAN_STATUS_SUCCESS: - /* Update the status to Authenticated */ - spin_lock_irqsave(&mac->lock, flags); - net->authenticating = 0; - net->authenticated = 1; - spin_unlock_irqrestore(&mac->lock, flags); - printkl(KERN_NOTICE PFX "Shared Key Authentication completed with %s\n", - print_mac(mac2, net->bssid)); - ieee80211softmac_call_events(mac, IEEE80211SOFTMAC_EVENT_AUTHENTICATED, net); - break; - default: - printkl(KERN_NOTICE PFX "Shared Key Authentication with %s failed, error code: %i\n", - print_mac(mac2, net->bssid), le16_to_cpup(&auth->status)); - /* Lock and reset flags */ - spin_lock_irqsave(&mac->lock, flags); - net->authenticating = 0; - net->authenticated = 0; - spin_unlock_irqrestore(&mac->lock, flags); - /* Count the error? */ - break; - } - goto free_aq; - break; - default: - printkl(KERN_WARNING PFX "Unhandled Authentication Step: %i\n", auth->transaction); - break; - } - goto free_aq; - break; - default: - /* ERROR */ - goto free_aq; - break; - } - return 0; -free_aq: - /* Cancel the timeout */ - spin_lock_irqsave(&mac->lock, flags); - cancel_delayed_work(&aq->work); - /* Remove this item from the queue */ - list_del(&aq->list); - spin_unlock_irqrestore(&mac->lock, flags); - - /* Free it */ - kfree(aq); - return 0; -} - -/* - * Handle deauthorization - */ -static void -ieee80211softmac_deauth_from_net(struct ieee80211softmac_device *mac, - struct ieee80211softmac_network *net) -{ - struct ieee80211softmac_auth_queue_item *aq = NULL; - struct list_head *list_ptr; - unsigned long flags; - - /* deauthentication implies disassociation */ - ieee80211softmac_disassoc(mac); - - /* Lock and reset status flags */ - spin_lock_irqsave(&mac->lock, flags); - net->authenticating = 0; - net->authenticated = 0; - - /* Find correct auth queue item, if it exists */ - list_for_each(list_ptr, &mac->auth_queue) { - aq = list_entry(list_ptr, struct ieee80211softmac_auth_queue_item, list); - if (!memcmp(net->bssid, aq->net->bssid, ETH_ALEN)) - break; - else - aq = NULL; - } - - /* Cancel pending work */ - if(aq != NULL) - /* Not entirely safe? What about running work? */ - cancel_delayed_work(&aq->work); - - /* Free our network ref */ - ieee80211softmac_del_network_locked(mac, net); - if(net->challenge != NULL) - kfree(net->challenge); - kfree(net); - - /* can't transmit data right now... */ - netif_carrier_off(mac->dev); - spin_unlock_irqrestore(&mac->lock, flags); - - ieee80211softmac_try_reassoc(mac); -} - -/* - * Sends a deauth request to the desired AP - */ -int -ieee80211softmac_deauth_req(struct ieee80211softmac_device *mac, - struct ieee80211softmac_network *net, int reason) -{ - int ret; - - /* Make sure the network is authenticated */ - if (!net->authenticated) - { - dprintkl(KERN_DEBUG PFX "Can't send deauthentication packet, network is not authenticated.\n"); - /* Error okay? */ - return -EPERM; - } - - /* Send the de-auth packet */ - if((ret = ieee80211softmac_send_mgt_frame(mac, net, IEEE80211_STYPE_DEAUTH, reason))) - return ret; - - ieee80211softmac_deauth_from_net(mac, net); - return 0; -} - -/* - * This should be registered with ieee80211 as handle_deauth - */ -int -ieee80211softmac_deauth_resp(struct net_device *dev, struct ieee80211_deauth *deauth) -{ - - struct ieee80211softmac_network *net = NULL; - struct ieee80211softmac_device *mac = ieee80211_priv(dev); - DECLARE_MAC_BUF(mac2); - - if (unlikely(!mac->running)) - return -ENODEV; - - if (!deauth) { - dprintk("deauth without deauth packet. eek!\n"); - return 0; - } - - net = ieee80211softmac_get_network_by_bssid(mac, deauth->header.addr2); - - if (net == NULL) { - dprintkl(KERN_DEBUG PFX "Received deauthentication packet from %s, but that network is unknown.\n", - print_mac(mac2, deauth->header.addr2)); - return 0; - } - - /* Make sure the network is authenticated */ - if(!net->authenticated) - { - dprintkl(KERN_DEBUG PFX "Can't perform deauthentication, network is not authenticated.\n"); - /* Error okay? */ - return -EPERM; - } - - ieee80211softmac_deauth_from_net(mac, net); - - /* let's try to re-associate */ - queue_delayed_work(mac->wq, &mac->associnfo.work, 0); - return 0; -} |