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c8d86be3 GKH |
1 | /******************************************************************************* |
2 | ||
3 | Copyright(c) 2004 Intel Corporation. All rights reserved. | |
4 | ||
5 | Portions of this file are based on the WEP enablement code provided by the | |
6 | Host AP project hostap-drivers v0.1.3 | |
7 | Copyright (c) 2001-2002, SSH Communications Security Corp and Jouni Malinen | |
8 | <jkmaline@cc.hut.fi> | |
9 | Copyright (c) 2002-2003, Jouni Malinen <jkmaline@cc.hut.fi> | |
10 | ||
11 | This program is free software; you can redistribute it and/or modify it | |
12 | under the terms of version 2 of the GNU General Public License as | |
13 | published by the Free Software Foundation. | |
14 | ||
15 | This program is distributed in the hope that it will be useful, but WITHOUT | |
16 | ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
17 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
18 | more details. | |
19 | ||
20 | You should have received a copy of the GNU General Public License along with | |
21 | this program; if not, write to the Free Software Foundation, Inc., 59 | |
22 | Temple Place - Suite 330, Boston, MA 02111-1307, USA. | |
23 | ||
24 | The full GNU General Public License is included in this distribution in the | |
25 | file called LICENSE. | |
26 | ||
27 | Contact Information: | |
28 | James P. Ketrenos <ipw2100-admin@linux.intel.com> | |
29 | Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 | |
30 | ||
31 | *******************************************************************************/ | |
32 | ||
33 | #include <linux/compiler.h> | |
34 | //#include <linux/config.h> | |
35 | #include <linux/errno.h> | |
36 | #include <linux/if_arp.h> | |
37 | #include <linux/in6.h> | |
38 | #include <linux/in.h> | |
39 | #include <linux/ip.h> | |
40 | #include <linux/kernel.h> | |
41 | #include <linux/module.h> | |
42 | #include <linux/netdevice.h> | |
43 | #include <linux/pci.h> | |
44 | #include <linux/proc_fs.h> | |
45 | #include <linux/skbuff.h> | |
46 | #include <linux/slab.h> | |
47 | #include <linux/tcp.h> | |
48 | #include <linux/types.h> | |
c8d86be3 GKH |
49 | #include <linux/wireless.h> |
50 | #include <linux/etherdevice.h> | |
39550d28 | 51 | #include <linux/uaccess.h> |
c8d86be3 GKH |
52 | #include <net/arp.h> |
53 | #include <net/net_namespace.h> | |
54 | ||
55 | #include "ieee80211.h" | |
56 | ||
57 | MODULE_DESCRIPTION("802.11 data/management/control stack"); | |
58 | MODULE_AUTHOR("Copyright (C) 2004 Intel Corporation <jketreno@linux.intel.com>"); | |
59 | MODULE_LICENSE("GPL"); | |
60 | ||
61 | #define DRV_NAME "ieee80211" | |
62 | ||
63 | static inline int ieee80211_networks_allocate(struct ieee80211_device *ieee) | |
64 | { | |
65 | if (ieee->networks) | |
66 | return 0; | |
67 | ||
7a6cb0d5 JL |
68 | ieee->networks = kcalloc( |
69 | MAX_NETWORK_COUNT, sizeof(struct ieee80211_network), | |
c8d86be3 | 70 | GFP_KERNEL); |
78110bb8 | 71 | if (!ieee->networks) |
c8d86be3 | 72 | return -ENOMEM; |
c8d86be3 | 73 | |
c8d86be3 GKH |
74 | return 0; |
75 | } | |
76 | ||
77 | static inline void ieee80211_networks_free(struct ieee80211_device *ieee) | |
78 | { | |
79 | if (!ieee->networks) | |
80 | return; | |
81 | kfree(ieee->networks); | |
82 | ieee->networks = NULL; | |
83 | } | |
84 | ||
85 | static inline void ieee80211_networks_initialize(struct ieee80211_device *ieee) | |
86 | { | |
87 | int i; | |
88 | ||
89 | INIT_LIST_HEAD(&ieee->network_free_list); | |
90 | INIT_LIST_HEAD(&ieee->network_list); | |
91 | for (i = 0; i < MAX_NETWORK_COUNT; i++) | |
92 | list_add_tail(&ieee->networks[i].list, &ieee->network_free_list); | |
93 | } | |
94 | ||
95 | ||
96 | struct net_device *alloc_ieee80211(int sizeof_priv) | |
97 | { | |
98 | struct ieee80211_device *ieee; | |
99 | struct net_device *dev; | |
e3b9b6cf | 100 | int i, err; |
c8d86be3 GKH |
101 | |
102 | IEEE80211_DEBUG_INFO("Initializing...\n"); | |
103 | ||
104 | dev = alloc_etherdev(sizeof(struct ieee80211_device) + sizeof_priv); | |
105 | if (!dev) { | |
106 | IEEE80211_ERROR("Unable to network device.\n"); | |
107 | goto failed; | |
108 | } | |
109 | ieee = netdev_priv(dev); | |
c8d86be3 GKH |
110 | |
111 | ieee->dev = dev; | |
112 | ||
113 | err = ieee80211_networks_allocate(ieee); | |
114 | if (err) { | |
115 | IEEE80211_ERROR("Unable to allocate beacon storage: %d\n", | |
116 | err); | |
117 | goto failed; | |
118 | } | |
119 | ieee80211_networks_initialize(ieee); | |
120 | ||
121 | /* Default fragmentation threshold is maximum payload size */ | |
122 | ieee->fts = DEFAULT_FTS; | |
123 | ieee->scan_age = DEFAULT_MAX_SCAN_AGE; | |
124 | ieee->open_wep = 1; | |
125 | ||
126 | /* Default to enabling full open WEP with host based encrypt/decrypt */ | |
127 | ieee->host_encrypt = 1; | |
128 | ieee->host_decrypt = 1; | |
129 | ieee->ieee802_1x = 1; /* Default to supporting 802.1x */ | |
130 | ||
131 | INIT_LIST_HEAD(&ieee->crypt_deinit_list); | |
132 | init_timer(&ieee->crypt_deinit_timer); | |
133 | ieee->crypt_deinit_timer.data = (unsigned long)ieee; | |
134 | ieee->crypt_deinit_timer.function = ieee80211_crypt_deinit_handler; | |
135 | ||
136 | spin_lock_init(&ieee->lock); | |
137 | spin_lock_init(&ieee->wpax_suitlist_lock); | |
138 | ||
139 | ieee->wpax_type_set = 0; | |
e3b9b6cf YT |
140 | ieee->wpa_enabled = 0; |
141 | ieee->tkip_countermeasures = 0; | |
142 | ieee->drop_unencrypted = 0; | |
143 | ieee->privacy_invoked = 0; | |
144 | ieee->ieee802_1x = 1; | |
c8d86be3 GKH |
145 | ieee->raw_tx = 0; |
146 | ||
147 | ieee80211_softmac_init(ieee); | |
148 | ||
149 | for (i = 0; i < IEEE_IBSS_MAC_HASH_SIZE; i++) | |
150 | INIT_LIST_HEAD(&ieee->ibss_mac_hash[i]); | |
151 | ||
152 | for (i = 0; i < 17; i++) { | |
e3b9b6cf YT |
153 | ieee->last_rxseq_num[i] = -1; |
154 | ieee->last_rxfrag_num[i] = -1; | |
155 | ieee->last_packet_time[i] = 0; | |
c8d86be3 GKH |
156 | } |
157 | //These function were added to load crypte module autoly | |
158 | ieee80211_tkip_null(); | |
159 | ieee80211_wep_null(); | |
160 | ieee80211_ccmp_null(); | |
161 | return dev; | |
162 | ||
163 | failed: | |
164 | if (dev) | |
165 | free_netdev(dev); | |
166 | return NULL; | |
167 | } | |
168 | ||
169 | ||
170 | void free_ieee80211(struct net_device *dev) | |
171 | { | |
172 | struct ieee80211_device *ieee = netdev_priv(dev); | |
173 | ||
174 | int i; | |
175 | struct list_head *p, *q; | |
176 | ||
177 | ||
178 | ieee80211_softmac_free(ieee); | |
179 | del_timer_sync(&ieee->crypt_deinit_timer); | |
180 | ieee80211_crypt_deinit_entries(ieee, 1); | |
181 | ||
182 | for (i = 0; i < WEP_KEYS; i++) { | |
183 | struct ieee80211_crypt_data *crypt = ieee->crypt[i]; | |
184 | if (crypt) { | |
a010a337 | 185 | if (crypt->ops) |
c8d86be3 | 186 | crypt->ops->deinit(crypt->priv); |
c8d86be3 GKH |
187 | kfree(crypt); |
188 | ieee->crypt[i] = NULL; | |
189 | } | |
190 | } | |
191 | ||
192 | ieee80211_networks_free(ieee); | |
193 | ||
194 | for (i = 0; i < IEEE_IBSS_MAC_HASH_SIZE; i++) { | |
195 | list_for_each_safe(p, q, &ieee->ibss_mac_hash[i]) { | |
196 | kfree(list_entry(p, struct ieee_ibss_seq, list)); | |
197 | list_del(p); | |
198 | } | |
199 | } | |
200 | ||
201 | ||
202 | free_netdev(dev); | |
203 | } |