Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 1 | /* |
Ashok Ponnaiah | 7a41e8c | 2017-12-28 17:13:40 +0530 | [diff] [blame] | 2 | * Copyright (c) 2017-2018 The Linux Foundation. All rights reserved. |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 3 | * |
| 4 | * Permission to use, copy, modify, and/or distribute this software for |
| 5 | * any purpose with or without fee is hereby granted, provided that the |
| 6 | * above copyright notice and this permission notice appear in all |
| 7 | * copies. |
| 8 | * |
| 9 | * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL |
| 10 | * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED |
| 11 | * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE |
| 12 | * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL |
| 13 | * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR |
| 14 | * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER |
| 15 | * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR |
| 16 | * PERFORMANCE OF THIS SOFTWARE. |
| 17 | */ |
| 18 | |
| 19 | /** |
| 20 | * DOC: Public APIs for crypto service |
| 21 | */ |
| 22 | #include <qdf_types.h> |
| 23 | #include <wlan_cmn.h> |
| 24 | #include <wlan_objmgr_cmn.h> |
| 25 | #include <wlan_objmgr_global_obj.h> |
| 26 | #include <wlan_objmgr_psoc_obj.h> |
| 27 | #include <wlan_objmgr_pdev_obj.h> |
| 28 | #include <wlan_objmgr_vdev_obj.h> |
| 29 | #include <wlan_objmgr_peer_obj.h> |
| 30 | |
| 31 | #include "wlan_crypto_global_def.h" |
| 32 | #include "wlan_crypto_global_api.h" |
| 33 | #include "wlan_crypto_def_i.h" |
| 34 | #include "wlan_crypto_param_handling_i.h" |
| 35 | #include "wlan_crypto_obj_mgr_i.h" |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 36 | |
Sathish Kumar | c6cd8dc | 2017-05-31 19:01:08 +0530 | [diff] [blame] | 37 | #include <qdf_module.h> |
| 38 | |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 39 | |
| 40 | const struct wlan_crypto_cipher *wlan_crypto_cipher_ops[WLAN_CRYPTO_CIPHER_MAX]; |
| 41 | |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 42 | /** |
| 43 | * wlan_crypto_vdev_get_crypto_params - called by mlme to get crypto params |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 44 | * @vdev:vdev |
| 45 | * |
| 46 | * This function gets called by mlme to get crypto params |
| 47 | * |
| 48 | * Return: wlan_crypto_params or NULL in case of failure |
| 49 | */ |
| 50 | static struct wlan_crypto_params *wlan_crypto_vdev_get_comp_params( |
| 51 | struct wlan_objmgr_vdev *vdev, |
| 52 | struct wlan_crypto_comp_priv **crypto_priv){ |
| 53 | *crypto_priv = (struct wlan_crypto_comp_priv *) |
| 54 | wlan_get_vdev_crypto_obj(vdev); |
| 55 | if (*crypto_priv == NULL) { |
| 56 | qdf_print("%s[%d] crypto_priv NULL\n", __func__, __LINE__); |
| 57 | return NULL; |
| 58 | } |
| 59 | |
| 60 | return &((*crypto_priv)->crypto_params); |
| 61 | } |
| 62 | |
| 63 | /** |
| 64 | * wlan_crypto_peer_get_crypto_params - called by mlme to get crypto params |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 65 | * @peer:peer |
| 66 | * |
| 67 | * This function gets called by mlme to get crypto params |
| 68 | * |
| 69 | * Return: wlan_crypto_params or NULL in case of failure |
| 70 | */ |
| 71 | static struct wlan_crypto_params *wlan_crypto_peer_get_comp_params( |
| 72 | struct wlan_objmgr_peer *peer, |
| 73 | struct wlan_crypto_comp_priv **crypto_priv){ |
| 74 | |
| 75 | *crypto_priv = (struct wlan_crypto_comp_priv *) |
| 76 | wlan_get_peer_crypto_obj(peer); |
| 77 | if (*crypto_priv == NULL) { |
| 78 | qdf_print("%s[%d] crypto_priv NULL\n", __func__, __LINE__); |
| 79 | return NULL; |
| 80 | } |
| 81 | |
| 82 | return &((*crypto_priv)->crypto_params); |
| 83 | } |
| 84 | |
Ashok Ponnaiah | 13e9f9b | 2017-03-14 04:45:29 +0530 | [diff] [blame] | 85 | static QDF_STATUS wlan_crypto_set_igtk_key(struct wlan_crypto_key *key) |
| 86 | { |
| 87 | return QDF_STATUS_SUCCESS; |
| 88 | } |
Disha Das | 6419ff1 | 2018-02-02 10:21:55 +0530 | [diff] [blame] | 89 | |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 90 | /** |
| 91 | * wlan_crypto_set_param - called by ucfg to set crypto param |
Disha Das | 6419ff1 | 2018-02-02 10:21:55 +0530 | [diff] [blame] | 92 | * @crypto_params: crypto_params |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 93 | * @param: param to be set. |
| 94 | * @value: value |
| 95 | * |
| 96 | * This function gets called from ucfg to set param |
| 97 | * |
| 98 | * Return: QDF_STATUS_SUCCESS - in case of success |
| 99 | */ |
Disha Das | 6419ff1 | 2018-02-02 10:21:55 +0530 | [diff] [blame] | 100 | static QDF_STATUS wlan_crypto_set_param(struct wlan_crypto_params *crypto_params, |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 101 | wlan_crypto_param_type param, |
| 102 | uint32_t value){ |
| 103 | QDF_STATUS status = QDF_STATUS_E_INVAL; |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 104 | |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 105 | switch (param) { |
| 106 | case WLAN_CRYPTO_PARAM_AUTH_MODE: |
| 107 | status = wlan_crypto_set_authmode(crypto_params, value); |
| 108 | break; |
| 109 | case WLAN_CRYPTO_PARAM_UCAST_CIPHER: |
| 110 | status = wlan_crypto_set_ucastciphers(crypto_params, value); |
| 111 | break; |
| 112 | case WLAN_CRYPTO_PARAM_MCAST_CIPHER: |
| 113 | status = wlan_crypto_set_mcastcipher(crypto_params, value); |
| 114 | break; |
| 115 | case WLAN_CRYPTO_PARAM_MGMT_CIPHER: |
| 116 | status = wlan_crypto_set_mgmtcipher(crypto_params, value); |
| 117 | break; |
| 118 | case WLAN_CRYPTO_PARAM_CIPHER_CAP: |
| 119 | status = wlan_crypto_set_cipher_cap(crypto_params, value); |
| 120 | break; |
| 121 | case WLAN_CRYPTO_PARAM_RSN_CAP: |
| 122 | status = wlan_crypto_set_rsn_cap(crypto_params, value); |
| 123 | break; |
| 124 | case WLAN_CRYPTO_PARAM_KEY_MGMT: |
| 125 | status = wlan_crypto_set_key_mgmt(crypto_params, value); |
| 126 | break; |
| 127 | default: |
| 128 | status = QDF_STATUS_E_INVAL; |
| 129 | } |
Disha Das | 6419ff1 | 2018-02-02 10:21:55 +0530 | [diff] [blame] | 130 | return status; |
| 131 | } |
| 132 | |
| 133 | /** |
| 134 | * wlan_crypto_set_vdev_param - called by ucfg to set crypto param |
| 135 | * @vdev: vdev |
| 136 | * @param: param to be set. |
| 137 | * @value: value |
| 138 | * |
| 139 | * This function gets called from ucfg to set param |
| 140 | * |
| 141 | * Return: QDF_STATUS_SUCCESS - in case of success |
| 142 | */ |
| 143 | QDF_STATUS wlan_crypto_set_vdev_param(struct wlan_objmgr_vdev *vdev, |
| 144 | wlan_crypto_param_type param, |
| 145 | uint32_t value){ |
| 146 | QDF_STATUS status = QDF_STATUS_E_INVAL; |
| 147 | struct wlan_crypto_comp_priv *crypto_priv; |
| 148 | struct wlan_crypto_params *crypto_params; |
| 149 | |
| 150 | crypto_priv = (struct wlan_crypto_comp_priv *) |
| 151 | wlan_get_vdev_crypto_obj(vdev); |
| 152 | |
| 153 | if (crypto_priv == NULL) { |
| 154 | qdf_print("%s[%d] crypto_priv NULL\n", __func__, __LINE__); |
| 155 | return QDF_STATUS_E_INVAL; |
| 156 | } |
| 157 | |
| 158 | crypto_params = &(crypto_priv->crypto_params); |
| 159 | |
| 160 | status = wlan_crypto_set_param(crypto_params, param, value); |
| 161 | |
| 162 | return status; |
| 163 | } |
| 164 | |
| 165 | /** |
| 166 | * wlan_crypto_set_param - called by ucfg to set crypto param |
| 167 | * |
| 168 | * @peer: peer |
| 169 | * @param: param to be set. |
| 170 | * @value: value |
| 171 | * |
| 172 | * This function gets called from ucfg to set param |
| 173 | * |
| 174 | * Return: QDF_STATUS_SUCCESS - in case of success |
| 175 | */ |
| 176 | QDF_STATUS wlan_crypto_set_peer_param(struct wlan_objmgr_peer *peer, |
| 177 | wlan_crypto_param_type param, |
| 178 | uint32_t value){ |
| 179 | QDF_STATUS status = QDF_STATUS_E_INVAL; |
| 180 | struct wlan_crypto_comp_priv *crypto_priv; |
| 181 | struct wlan_crypto_params *crypto_params; |
| 182 | |
| 183 | crypto_params = wlan_crypto_peer_get_comp_params(peer, |
| 184 | &crypto_priv); |
| 185 | |
| 186 | if (crypto_priv == NULL) { |
| 187 | qdf_print("%s[%d] crypto_priv NULL\n", __func__, __LINE__); |
| 188 | return QDF_STATUS_E_INVAL; |
| 189 | } |
| 190 | |
| 191 | crypto_params = &(crypto_priv->crypto_params); |
| 192 | |
| 193 | status = wlan_crypto_set_param(crypto_params, param, value); |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 194 | |
| 195 | return status; |
| 196 | } |
| 197 | |
| 198 | /** |
Sathish Kumar | c6cd8dc | 2017-05-31 19:01:08 +0530 | [diff] [blame] | 199 | * wlan_crypto_get_param_value - called by crypto APIs to get value for param |
Sathish Kumar | c6cd8dc | 2017-05-31 19:01:08 +0530 | [diff] [blame] | 200 | * @param: Crypto param type |
| 201 | * @crypto_params: Crypto params struct |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 202 | * |
Sathish Kumar | c6cd8dc | 2017-05-31 19:01:08 +0530 | [diff] [blame] | 203 | * This function gets called from in-within crypto layer |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 204 | * |
| 205 | * Return: value or -1 for failure |
| 206 | */ |
Sathish Kumar | c6cd8dc | 2017-05-31 19:01:08 +0530 | [diff] [blame] | 207 | static int32_t wlan_crypto_get_param_value(wlan_crypto_param_type param, |
| 208 | struct wlan_crypto_params *crypto_params) |
| 209 | { |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 210 | int32_t value = -1; |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 211 | |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 212 | switch (param) { |
| 213 | case WLAN_CRYPTO_PARAM_AUTH_MODE: |
| 214 | value = wlan_crypto_get_authmode(crypto_params); |
| 215 | break; |
| 216 | case WLAN_CRYPTO_PARAM_UCAST_CIPHER: |
| 217 | value = wlan_crypto_get_ucastciphers(crypto_params); |
| 218 | break; |
| 219 | case WLAN_CRYPTO_PARAM_MCAST_CIPHER: |
| 220 | value = wlan_crypto_get_mcastcipher(crypto_params); |
| 221 | break; |
| 222 | case WLAN_CRYPTO_PARAM_MGMT_CIPHER: |
| 223 | value = wlan_crypto_get_mgmtciphers(crypto_params); |
| 224 | break; |
| 225 | case WLAN_CRYPTO_PARAM_CIPHER_CAP: |
| 226 | value = wlan_crypto_get_cipher_cap(crypto_params); |
| 227 | break; |
| 228 | case WLAN_CRYPTO_PARAM_RSN_CAP: |
| 229 | value = wlan_crypto_get_rsn_cap(crypto_params); |
| 230 | break; |
| 231 | case WLAN_CRYPTO_PARAM_KEY_MGMT: |
| 232 | value = wlan_crypto_get_key_mgmt(crypto_params); |
| 233 | break; |
| 234 | default: |
| 235 | value = QDF_STATUS_E_INVAL; |
| 236 | } |
| 237 | |
| 238 | return value; |
| 239 | } |
| 240 | |
Ashok Ponnaiah | f995360 | 2018-01-11 15:39:26 +0530 | [diff] [blame] | 241 | /** |
| 242 | * wlan_crypto_get_param - called to get value for param from vdev |
| 243 | * @vdev: vdev |
| 244 | * @param: Crypto param type |
| 245 | * |
| 246 | * This function gets called to get value for param from vdev |
| 247 | * |
| 248 | * Return: value or -1 for failure |
| 249 | */ |
Sathish Kumar | c6cd8dc | 2017-05-31 19:01:08 +0530 | [diff] [blame] | 250 | int32_t wlan_crypto_get_param(struct wlan_objmgr_vdev *vdev, |
| 251 | wlan_crypto_param_type param) |
| 252 | { |
| 253 | int32_t value = -1; |
| 254 | struct wlan_crypto_comp_priv *crypto_priv; |
| 255 | struct wlan_crypto_params *crypto_params; |
| 256 | crypto_priv = (struct wlan_crypto_comp_priv *) |
| 257 | wlan_get_vdev_crypto_obj(vdev); |
| 258 | |
| 259 | if (crypto_priv == NULL) { |
| 260 | qdf_print("%s[%d] crypto_priv NULL\n", __func__, __LINE__); |
| 261 | return QDF_STATUS_E_INVAL; |
| 262 | } |
| 263 | |
| 264 | crypto_params = &(crypto_priv->crypto_params); |
| 265 | value = wlan_crypto_get_param_value(param, crypto_params); |
| 266 | |
| 267 | return value; |
| 268 | } |
Ashok Ponnaiah | f995360 | 2018-01-11 15:39:26 +0530 | [diff] [blame] | 269 | /** |
| 270 | * wlan_crypto_get_peer_param - called to get value for param from peer |
| 271 | * @peer: peer |
| 272 | * @param: Crypto param type |
| 273 | * |
| 274 | * This function gets called to get value for param from peer |
| 275 | * |
| 276 | * Return: value or -1 for failure |
| 277 | */ |
Sathish Kumar | c6cd8dc | 2017-05-31 19:01:08 +0530 | [diff] [blame] | 278 | int32_t wlan_crypto_get_peer_param(struct wlan_objmgr_peer *peer, |
| 279 | wlan_crypto_param_type param) |
| 280 | { |
| 281 | int32_t value = -1; |
| 282 | struct wlan_crypto_comp_priv *crypto_priv; |
| 283 | struct wlan_crypto_params *crypto_params; |
| 284 | |
| 285 | crypto_params = wlan_crypto_peer_get_comp_params(peer, |
| 286 | &crypto_priv); |
| 287 | |
| 288 | if (crypto_params == NULL) { |
| 289 | qdf_print("%s[%d] crypto_params NULL\n", __func__, __LINE__); |
| 290 | return QDF_STATUS_E_INVAL; |
| 291 | } |
| 292 | value = wlan_crypto_get_param_value(param, crypto_params); |
| 293 | |
| 294 | return value; |
| 295 | } |
Ashok Ponnaiah | 455eb68 | 2018-03-19 10:33:22 +0530 | [diff] [blame] | 296 | qdf_export_symbol(wlan_crypto_get_peer_param); |
Ashok Ponnaiah | f995360 | 2018-01-11 15:39:26 +0530 | [diff] [blame] | 297 | /** |
| 298 | * wlan_crypto_is_htallowed - called to check is HT allowed for cipher |
| 299 | * @vdev: vdev |
| 300 | * @peer: peer |
| 301 | * |
| 302 | * This function gets called to check is HT allowed for cipher. |
| 303 | * HT is not allowed for wep and tkip. |
| 304 | * |
| 305 | * Return: 0 - not allowed or 1 - allowed |
| 306 | */ |
Sathish Kumar | c6cd8dc | 2017-05-31 19:01:08 +0530 | [diff] [blame] | 307 | uint8_t wlan_crypto_is_htallowed(struct wlan_objmgr_vdev *vdev, |
| 308 | struct wlan_objmgr_peer *peer) |
| 309 | { |
| 310 | int32_t ucast_cipher; |
| 311 | |
| 312 | if (!(vdev || peer)) { |
| 313 | qdf_print("%s[%d] Invalid params\n", __func__, __LINE__); |
| 314 | return 0; |
| 315 | } |
| 316 | |
| 317 | if (vdev) |
| 318 | ucast_cipher = wlan_crypto_get_param(vdev, |
| 319 | WLAN_CRYPTO_PARAM_UCAST_CIPHER); |
| 320 | else |
| 321 | ucast_cipher = wlan_crypto_get_peer_param(peer, |
| 322 | WLAN_CRYPTO_PARAM_UCAST_CIPHER); |
| 323 | |
| 324 | return (ucast_cipher & (1 << WLAN_CRYPTO_CIPHER_WEP)) || |
| 325 | ((ucast_cipher & (1 << WLAN_CRYPTO_CIPHER_TKIP)) && |
| 326 | !(ucast_cipher & (1 << WLAN_CRYPTO_CIPHER_AES_CCM)) && |
| 327 | !(ucast_cipher & (1 << WLAN_CRYPTO_CIPHER_AES_GCM)) && |
| 328 | !(ucast_cipher & (1 << WLAN_CRYPTO_CIPHER_AES_GCM_256)) && |
| 329 | !(ucast_cipher & (1 << WLAN_CRYPTO_CIPHER_AES_CCM_256))); |
| 330 | } |
| 331 | qdf_export_symbol(wlan_crypto_is_htallowed); |
| 332 | |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 333 | /** |
| 334 | * wlan_crypto_setkey - called by ucfg to setkey |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 335 | * @vdev: vdev |
| 336 | * @req_key: req_key with cipher type, key macaddress |
| 337 | * |
| 338 | * This function gets called from ucfg to sey key |
| 339 | * |
| 340 | * Return: QDF_STATUS_SUCCESS - in case of success |
| 341 | */ |
| 342 | QDF_STATUS wlan_crypto_setkey(struct wlan_objmgr_vdev *vdev, |
| 343 | struct wlan_crypto_req_key *req_key){ |
| 344 | |
| 345 | QDF_STATUS status = QDF_STATUS_E_INVAL; |
| 346 | struct wlan_crypto_comp_priv *crypto_priv; |
| 347 | struct wlan_crypto_params *crypto_params; |
Ashok Ponnaiah | 439d7b5 | 2017-03-21 11:20:36 +0530 | [diff] [blame] | 348 | struct wlan_objmgr_psoc *psoc; |
| 349 | struct wlan_objmgr_peer *peer; |
Ashok Ponnaiah | b696221 | 2017-07-31 10:12:57 +0530 | [diff] [blame] | 350 | struct wlan_crypto_key *key = NULL; |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 351 | const struct wlan_crypto_cipher *cipher; |
Ashok Ponnaiah | 439d7b5 | 2017-03-21 11:20:36 +0530 | [diff] [blame] | 352 | uint8_t macaddr[WLAN_ALEN] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff}; |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 353 | bool isbcast; |
Jeff Johnson | a426232 | 2017-11-09 09:54:12 -0800 | [diff] [blame] | 354 | enum QDF_OPMODE vdev_mode; |
Nandha Kishore Easwaran | b0ac369 | 2017-12-08 10:39:00 +0530 | [diff] [blame] | 355 | uint8_t igtk_idx = 0; |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 356 | |
Ashok Ponnaiah | 13e9f9b | 2017-03-14 04:45:29 +0530 | [diff] [blame] | 357 | if (!vdev || !req_key || req_key->keylen > (sizeof(req_key->keydata))) { |
Jeff Johnson | 878533e | 2017-09-18 10:07:54 -0700 | [diff] [blame] | 358 | qdf_print("%s[%d] Invalid params vdev%pK, req_key%pK\n", |
Ashok Ponnaiah | 13e9f9b | 2017-03-14 04:45:29 +0530 | [diff] [blame] | 359 | __func__, __LINE__, vdev, req_key); |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 360 | return QDF_STATUS_E_INVAL; |
| 361 | } |
| 362 | |
| 363 | isbcast = qdf_is_macaddr_broadcast( |
| 364 | (struct qdf_mac_addr *)req_key->macaddr); |
Subrat Mishra | 2b75d6d | 2017-08-07 17:36:25 +0530 | [diff] [blame] | 365 | if ((req_key->keylen == 0) && !IS_FILS_CIPHER(req_key->type)) { |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 366 | /* zero length keys, only set default key id if flags are set*/ |
| 367 | if ((req_key->flags & WLAN_CRYPTO_KEY_DEFAULT) |
| 368 | && (req_key->keyix != WLAN_CRYPTO_KEYIX_NONE) |
| 369 | && (!IS_MGMT_CIPHER(req_key->type))) { |
| 370 | wlan_crypto_default_key(vdev, |
| 371 | req_key->macaddr, |
| 372 | req_key->keyix, |
| 373 | !isbcast); |
| 374 | return QDF_STATUS_SUCCESS; |
| 375 | } |
| 376 | qdf_print("%s[%d] req_key len zero\n", __func__, __LINE__); |
| 377 | return QDF_STATUS_E_INVAL; |
| 378 | } |
| 379 | |
| 380 | cipher = wlan_crypto_cipher_ops[req_key->type]; |
| 381 | |
| 382 | if (!cipher && !IS_MGMT_CIPHER(req_key->type)) { |
| 383 | qdf_print("%s[%d] cipher invalid\n", __func__, __LINE__); |
| 384 | return QDF_STATUS_E_INVAL; |
| 385 | } |
| 386 | |
Subrat Mishra | 2b75d6d | 2017-08-07 17:36:25 +0530 | [diff] [blame] | 387 | if (cipher && (!IS_FILS_CIPHER(req_key->type)) && |
| 388 | (!IS_MGMT_CIPHER(req_key->type)) && |
| 389 | ((req_key->keylen != (cipher->keylen / NBBY)) && |
| 390 | (req_key->type != WLAN_CRYPTO_CIPHER_WEP))) { |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 391 | qdf_print("%s[%d] cipher invalid\n", __func__, __LINE__); |
| 392 | return QDF_STATUS_E_INVAL; |
| 393 | } else if ((req_key->type == WLAN_CRYPTO_CIPHER_WEP) && |
Ashok Ponnaiah | b696221 | 2017-07-31 10:12:57 +0530 | [diff] [blame] | 394 | !((req_key->keylen == WLAN_CRYPTO_KEY_WEP40_LEN) |
| 395 | || (req_key->keylen == WLAN_CRYPTO_KEY_WEP104_LEN) |
| 396 | || (req_key->keylen == WLAN_CRYPTO_KEY_WEP128_LEN))) { |
| 397 | qdf_print("%s[%d] wep key len invalid\n", __func__, __LINE__); |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 398 | return QDF_STATUS_E_INVAL; |
| 399 | } |
| 400 | |
| 401 | if (req_key->keyix == WLAN_CRYPTO_KEYIX_NONE) { |
| 402 | if (req_key->flags != (WLAN_CRYPTO_KEY_XMIT |
| 403 | | WLAN_CRYPTO_KEY_RECV)) { |
Ashok Ponnaiah | 13e9f9b | 2017-03-14 04:45:29 +0530 | [diff] [blame] | 404 | req_key->flags |= (WLAN_CRYPTO_KEY_XMIT |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 405 | | WLAN_CRYPTO_KEY_RECV); |
| 406 | } |
| 407 | } else { |
Disha Das | 55b86c2 | 2018-04-20 15:22:08 +0530 | [diff] [blame] | 408 | if ((req_key->keyix >= WLAN_CRYPTO_MAXKEYIDX) |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 409 | && (!IS_MGMT_CIPHER(req_key->type))) { |
| 410 | return QDF_STATUS_E_INVAL; |
| 411 | } |
| 412 | |
Ashok Ponnaiah | 13e9f9b | 2017-03-14 04:45:29 +0530 | [diff] [blame] | 413 | req_key->flags |= (WLAN_CRYPTO_KEY_XMIT |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 414 | | WLAN_CRYPTO_KEY_RECV); |
Nandha Kishore Easwaran | 786c955 | 2017-06-28 10:54:09 +0530 | [diff] [blame] | 415 | if (isbcast) |
| 416 | req_key->flags |= WLAN_CRYPTO_KEY_GROUP; |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 417 | } |
| 418 | |
Ashok Ponnaiah | 439d7b5 | 2017-03-21 11:20:36 +0530 | [diff] [blame] | 419 | vdev_mode = wlan_vdev_mlme_get_opmode(vdev); |
Vivek | b02a649 | 2017-06-21 08:21:58 +0530 | [diff] [blame] | 420 | |
| 421 | wlan_vdev_obj_lock(vdev); |
Ashok Ponnaiah | 439d7b5 | 2017-03-21 11:20:36 +0530 | [diff] [blame] | 422 | qdf_mem_copy(macaddr, wlan_vdev_mlme_get_macaddr(vdev), WLAN_ALEN); |
| 423 | psoc = wlan_vdev_get_psoc(vdev); |
| 424 | if (!psoc) { |
| 425 | wlan_vdev_obj_unlock(vdev); |
| 426 | qdf_print("%s[%d] psoc NULL\n", __func__, __LINE__); |
| 427 | return QDF_STATUS_E_INVAL; |
| 428 | } |
| 429 | wlan_vdev_obj_unlock(vdev); |
| 430 | |
Rohan Dutta | 3844c60 | 2017-09-01 16:04:25 +0530 | [diff] [blame] | 431 | if (req_key->type == WLAN_CRYPTO_CIPHER_WEP) { |
| 432 | if (wlan_crypto_vdev_has_auth_mode(vdev, |
| 433 | (1 << WLAN_CRYPTO_AUTH_8021X))) { |
| 434 | req_key->flags |= WLAN_CRYPTO_KEY_DEFAULT; |
Rohan Dutta | 3844c60 | 2017-09-01 16:04:25 +0530 | [diff] [blame] | 435 | } |
| 436 | } |
| 437 | |
Ashok Ponnaiah | 439d7b5 | 2017-03-21 11:20:36 +0530 | [diff] [blame] | 438 | if (isbcast) { |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 439 | crypto_params = wlan_crypto_vdev_get_comp_params(vdev, |
| 440 | &crypto_priv); |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 441 | if (crypto_priv == NULL) { |
| 442 | qdf_print("%s[%d] crypto_priv NULL\n", |
| 443 | __func__, __LINE__); |
| 444 | return QDF_STATUS_E_INVAL; |
| 445 | } |
| 446 | |
| 447 | if (IS_MGMT_CIPHER(req_key->type)) { |
Nandha Kishore Easwaran | b0ac369 | 2017-12-08 10:39:00 +0530 | [diff] [blame] | 448 | igtk_idx = req_key->keyix - WLAN_CRYPTO_MAXKEYIDX; |
Disha Das | 76210cd | 2018-04-10 12:44:14 +0530 | [diff] [blame] | 449 | if (igtk_idx >= WLAN_CRYPTO_MAXIGTKKEYIDX) { |
Nandha Kishore Easwaran | b0ac369 | 2017-12-08 10:39:00 +0530 | [diff] [blame] | 450 | qdf_print("%s[%d] igtk key invalid keyid %d \n", |
| 451 | __func__, __LINE__, igtk_idx); |
| 452 | return QDF_STATUS_E_INVAL; |
| 453 | } |
Ashok Ponnaiah | 2a3df50 | 2017-07-07 17:01:41 +0530 | [diff] [blame] | 454 | key = qdf_mem_malloc(sizeof(struct wlan_crypto_key)); |
| 455 | if (key == NULL) { |
| 456 | qdf_print("%s[%d] igtk key alloc failed\n", |
| 457 | __func__, __LINE__); |
| 458 | return QDF_STATUS_E_NOMEM; |
| 459 | } |
Nandha Kishore Easwaran | b0ac369 | 2017-12-08 10:39:00 +0530 | [diff] [blame] | 460 | |
| 461 | if (crypto_priv->igtk_key[igtk_idx]) |
| 462 | qdf_mem_free(crypto_priv->igtk_key[igtk_idx]); |
| 463 | |
| 464 | crypto_priv->igtk_key[igtk_idx] = key; |
Ashok Ponnaiah | 13e9f9b | 2017-03-14 04:45:29 +0530 | [diff] [blame] | 465 | crypto_priv->igtk_key_type = req_key->type; |
Nandha Kishore Easwaran | b0ac369 | 2017-12-08 10:39:00 +0530 | [diff] [blame] | 466 | crypto_priv->def_igtk_tx_keyid = igtk_idx; |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 467 | } else { |
Subrat Mishra | 2b75d6d | 2017-08-07 17:36:25 +0530 | [diff] [blame] | 468 | if (IS_FILS_CIPHER(req_key->type)) { |
| 469 | qdf_print(FL( |
| 470 | "FILS key is not for BroadCast packet\n")); |
| 471 | return QDF_STATUS_E_INVAL; |
| 472 | } |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 473 | if (!HAS_MCAST_CIPHER(crypto_params, req_key->type) |
| 474 | && (req_key->type != WLAN_CRYPTO_CIPHER_WEP)) { |
| 475 | return QDF_STATUS_E_INVAL; |
| 476 | } |
| 477 | if (!crypto_priv->key[req_key->keyix]) { |
| 478 | crypto_priv->key[req_key->keyix] |
| 479 | = qdf_mem_malloc( |
| 480 | sizeof(struct wlan_crypto_key)); |
| 481 | if (!crypto_priv->key[req_key->keyix]) |
| 482 | return QDF_STATUS_E_NOMEM; |
| 483 | } |
| 484 | key = crypto_priv->key[req_key->keyix]; |
| 485 | } |
Nandha Kishore Easwaran | e9f8070 | 2017-07-21 18:00:56 +0530 | [diff] [blame] | 486 | if (vdev_mode == QDF_STA_MODE) { |
| 487 | peer = wlan_vdev_get_bsspeer(vdev); |
Ashok Ponnaiah | b696221 | 2017-07-31 10:12:57 +0530 | [diff] [blame] | 488 | if (!(peer && (QDF_STATUS_SUCCESS |
| 489 | == wlan_objmgr_peer_try_get_ref(peer, |
| 490 | WLAN_CRYPTO_ID)))) { |
Jeff Johnson | 878533e | 2017-09-18 10:07:54 -0700 | [diff] [blame] | 491 | qdf_print("%s[%d] peer %pK failed\n", |
Ashok Ponnaiah | b696221 | 2017-07-31 10:12:57 +0530 | [diff] [blame] | 492 | __func__, __LINE__, peer); |
| 493 | if (IS_MGMT_CIPHER(req_key->type)) { |
Nandha Kishore Easwaran | b0ac369 | 2017-12-08 10:39:00 +0530 | [diff] [blame] | 494 | crypto_priv->igtk_key[igtk_idx] = NULL; |
Ashok Ponnaiah | b696221 | 2017-07-31 10:12:57 +0530 | [diff] [blame] | 495 | crypto_priv->igtk_key_type |
| 496 | = WLAN_CRYPTO_CIPHER_NONE; |
| 497 | } else |
| 498 | crypto_priv->key[req_key->keyix] = NULL; |
| 499 | if (key) |
| 500 | qdf_mem_free(key); |
Nandha Kishore Easwaran | e9f8070 | 2017-07-21 18:00:56 +0530 | [diff] [blame] | 501 | return QDF_STATUS_E_INVAL; |
| 502 | } |
Nandha Kishore Easwaran | e9f8070 | 2017-07-21 18:00:56 +0530 | [diff] [blame] | 503 | qdf_mem_copy(macaddr, wlan_peer_get_macaddr(peer), |
| 504 | WLAN_ALEN); |
Nandha Kishore Easwaran | e9f8070 | 2017-07-21 18:00:56 +0530 | [diff] [blame] | 505 | wlan_objmgr_peer_release_ref(peer, WLAN_CRYPTO_ID); |
| 506 | } |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 507 | } else { |
Amir Patel | d338594 | 2018-05-03 23:01:08 +0530 | [diff] [blame] | 508 | uint8_t pdev_id; |
| 509 | |
| 510 | pdev_id = wlan_objmgr_pdev_get_pdev_id( |
| 511 | wlan_vdev_get_pdev(vdev)); |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 512 | peer = wlan_objmgr_get_peer_by_mac_n_vdev( |
Ashok Ponnaiah | 439d7b5 | 2017-03-21 11:20:36 +0530 | [diff] [blame] | 513 | psoc, |
Amir Patel | d338594 | 2018-05-03 23:01:08 +0530 | [diff] [blame] | 514 | pdev_id, |
Ashok Ponnaiah | 439d7b5 | 2017-03-21 11:20:36 +0530 | [diff] [blame] | 515 | macaddr, |
Amir Patel | d338594 | 2018-05-03 23:01:08 +0530 | [diff] [blame] | 516 | req_key->macaddr, |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 517 | WLAN_CRYPTO_ID); |
Ashok Ponnaiah | 439d7b5 | 2017-03-21 11:20:36 +0530 | [diff] [blame] | 518 | |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 519 | if (peer == NULL) { |
| 520 | qdf_print("%s[%d] peer NULL\n", __func__, __LINE__); |
| 521 | return QDF_STATUS_E_INVAL; |
| 522 | } |
| 523 | |
Ashok Ponnaiah | 439d7b5 | 2017-03-21 11:20:36 +0530 | [diff] [blame] | 524 | qdf_mem_copy(macaddr, req_key->macaddr, WLAN_ALEN); |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 525 | crypto_params = wlan_crypto_peer_get_comp_params(peer, |
| 526 | &crypto_priv); |
| 527 | wlan_objmgr_peer_release_ref(peer, WLAN_CRYPTO_ID); |
| 528 | |
| 529 | if (crypto_priv == NULL) { |
| 530 | qdf_print("%s[%d] crypto_priv NULL\n", |
| 531 | __func__, __LINE__); |
| 532 | return QDF_STATUS_E_INVAL; |
| 533 | } |
| 534 | if (IS_MGMT_CIPHER(req_key->type)) { |
Nandha Kishore Easwaran | b0ac369 | 2017-12-08 10:39:00 +0530 | [diff] [blame] | 535 | igtk_idx = req_key->keyix - WLAN_CRYPTO_MAXKEYIDX; |
Disha Das | 55b86c2 | 2018-04-20 15:22:08 +0530 | [diff] [blame] | 536 | if (igtk_idx >= WLAN_CRYPTO_MAXIGTKKEYIDX) { |
Nandha Kishore Easwaran | b0ac369 | 2017-12-08 10:39:00 +0530 | [diff] [blame] | 537 | qdf_print("%s[%d] igtk key invalid keyid %d \n", |
| 538 | __func__, __LINE__, igtk_idx); |
| 539 | return QDF_STATUS_E_INVAL; |
| 540 | } |
Ashok Ponnaiah | 2a3df50 | 2017-07-07 17:01:41 +0530 | [diff] [blame] | 541 | key = qdf_mem_malloc(sizeof(struct wlan_crypto_key)); |
| 542 | if (key == NULL) { |
| 543 | qdf_print("%s[%d] igtk key alloc failed\n", |
| 544 | __func__, __LINE__); |
| 545 | return QDF_STATUS_E_NOMEM; |
| 546 | } |
Nandha Kishore Easwaran | b0ac369 | 2017-12-08 10:39:00 +0530 | [diff] [blame] | 547 | if (crypto_priv->igtk_key[igtk_idx]) |
| 548 | qdf_mem_free(crypto_priv->igtk_key[igtk_idx]); |
| 549 | |
| 550 | crypto_priv->igtk_key[igtk_idx] = key; |
| 551 | crypto_priv->igtk_key_type = req_key->type; |
| 552 | crypto_priv->def_igtk_tx_keyid = igtk_idx; |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 553 | } else { |
| 554 | uint16_t kid = req_key->keyix; |
| 555 | if (kid == WLAN_CRYPTO_KEYIX_NONE) |
| 556 | kid = 0; |
Radhika Sriram | 00392f3 | 2018-04-04 19:04:49 +0530 | [diff] [blame] | 557 | if (kid >= WLAN_CRYPTO_MAXKEYIDX) { |
| 558 | qdf_print("%s[%d] invalid keyid %d \n", |
| 559 | __func__, __LINE__, kid); |
| 560 | return QDF_STATUS_E_INVAL; |
| 561 | } |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 562 | if (!crypto_priv->key[kid]) { |
| 563 | crypto_priv->key[kid] |
| 564 | = qdf_mem_malloc( |
| 565 | sizeof(struct wlan_crypto_key)); |
| 566 | if (!crypto_priv->key[kid]) |
| 567 | return QDF_STATUS_E_NOMEM; |
| 568 | } |
| 569 | key = crypto_priv->key[kid]; |
| 570 | } |
| 571 | } |
| 572 | |
| 573 | /* alloc key might not required as it is already there */ |
| 574 | key->cipher_table = (void *)cipher; |
| 575 | key->keylen = req_key->keylen; |
| 576 | key->flags = req_key->flags; |
| 577 | |
| 578 | if (req_key->keyix == WLAN_CRYPTO_KEYIX_NONE) |
| 579 | key->keyix = 0; |
| 580 | else |
| 581 | key->keyix = req_key->keyix; |
| 582 | |
Ashok Ponnaiah | 2a3df50 | 2017-07-07 17:01:41 +0530 | [diff] [blame] | 583 | if (req_key->flags & WLAN_CRYPTO_KEY_DEFAULT |
| 584 | && (!IS_MGMT_CIPHER(req_key->type))) { |
Ashok Ponnaiah | 13e9f9b | 2017-03-14 04:45:29 +0530 | [diff] [blame] | 585 | crypto_priv->def_tx_keyid = key->keyix; |
| 586 | key->flags |= WLAN_CRYPTO_KEY_DEFAULT; |
| 587 | } |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 588 | if ((req_key->type == WLAN_CRYPTO_CIPHER_WAPI_SMS4) |
| 589 | || (req_key->type == WLAN_CRYPTO_CIPHER_WAPI_GCM4)) { |
| 590 | uint8_t iv_AP[16] = { 0x5c, 0x36, 0x5c, 0x36, |
| 591 | 0x5c, 0x36, 0x5c, 0x36, |
| 592 | 0x5c, 0x36, 0x5c, 0x36, |
| 593 | 0x5c, 0x36, 0x5c, 0x37}; |
| 594 | uint8_t iv_STA[16] = { 0x5c, 0x36, 0x5c, 0x36, |
| 595 | 0x5c, 0x36, 0x5c, 0x36, |
| 596 | 0x5c, 0x36, 0x5c, 0x36, |
| 597 | 0x5c, 0x36, 0x5c, 0x36}; |
| 598 | |
| 599 | /* During Tx PN should be increment and |
| 600 | * send but as per our implementation we increment only after |
| 601 | * Tx complete. So First packet PN check will be failed. |
| 602 | * To compensate increment the PN here by 2 |
| 603 | */ |
Ashok Ponnaiah | 439d7b5 | 2017-03-21 11:20:36 +0530 | [diff] [blame] | 604 | if (vdev_mode == QDF_SAP_MODE) { |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 605 | iv_AP[15] += 2; |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 606 | qdf_mem_copy(key->recviv, iv_STA, |
| 607 | WLAN_CRYPTO_WAPI_IV_SIZE); |
Ashok Ponnaiah | 2a3df50 | 2017-07-07 17:01:41 +0530 | [diff] [blame] | 608 | qdf_mem_copy(key->txiv, iv_AP, |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 609 | WLAN_CRYPTO_WAPI_IV_SIZE); |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 610 | } else { |
| 611 | iv_STA[15] += 2; |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 612 | qdf_mem_copy(key->recviv, iv_AP, |
| 613 | WLAN_CRYPTO_WAPI_IV_SIZE); |
Ashok Ponnaiah | 2a3df50 | 2017-07-07 17:01:41 +0530 | [diff] [blame] | 614 | qdf_mem_copy(key->txiv, iv_STA, |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 615 | WLAN_CRYPTO_WAPI_IV_SIZE); |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 616 | } |
| 617 | } else { |
| 618 | uint8_t i = 0; |
| 619 | qdf_mem_copy((uint8_t *)(&key->keytsc), |
| 620 | (uint8_t *)(&req_key->keytsc), sizeof(key->keytsc)); |
| 621 | for (i = 0; i < WLAN_CRYPTO_TID_SIZE; i++) { |
| 622 | qdf_mem_copy((uint8_t *)(&key->keyrsc[i]), |
| 623 | (uint8_t *)(&req_key->keyrsc), |
| 624 | sizeof(key->keyrsc[0])); |
| 625 | } |
| 626 | } |
| 627 | |
| 628 | qdf_mem_copy(key->keyval, req_key->keydata, sizeof(key->keyval)); |
| 629 | key->valid = 1; |
Ashok Ponnaiah | 2a3df50 | 2017-07-07 17:01:41 +0530 | [diff] [blame] | 630 | if ((IS_MGMT_CIPHER(req_key->type))) { |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 631 | if (HAS_CIPHER_CAP(crypto_params, |
| 632 | WLAN_CRYPTO_CAP_PMF_OFFLOAD)) { |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 633 | if (WLAN_CRYPTO_TX_OPS_SETKEY(psoc)) { |
| 634 | WLAN_CRYPTO_TX_OPS_SETKEY(psoc)(vdev, |
| 635 | key, macaddr, req_key->type); |
| 636 | } |
| 637 | } |
| 638 | status = wlan_crypto_set_igtk_key(key); |
| 639 | return status; |
Subrat Mishra | 2b75d6d | 2017-08-07 17:36:25 +0530 | [diff] [blame] | 640 | } else if (IS_FILS_CIPHER(req_key->type)) { |
| 641 | /* Take request key object to FILS setkey */ |
| 642 | key->private = req_key; |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 643 | } else { |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 644 | if (WLAN_CRYPTO_TX_OPS_SETKEY(psoc)) { |
| 645 | WLAN_CRYPTO_TX_OPS_SETKEY(psoc)(vdev, key, |
| 646 | macaddr, req_key->type); |
| 647 | } |
| 648 | } |
| 649 | status = cipher->setkey(key); |
| 650 | |
| 651 | return status; |
| 652 | } |
| 653 | |
| 654 | /** |
Ashok Ponnaiah | 23668cd | 2018-04-23 14:22:27 +0530 | [diff] [blame] | 655 | * wlan_crypto_get_keytype - get keytype |
| 656 | * @key: key |
| 657 | * |
| 658 | * This function gets keytype from key |
| 659 | * |
| 660 | * Return: keytype |
| 661 | */ |
| 662 | wlan_crypto_cipher_type wlan_crypto_get_key_type( |
| 663 | struct wlan_crypto_key *key){ |
| 664 | if (key && key->cipher_table) { |
| 665 | return ((struct wlan_crypto_cipher *) |
| 666 | (key->cipher_table))->cipher; |
| 667 | } |
| 668 | return WLAN_CRYPTO_CIPHER_NONE; |
| 669 | } |
| 670 | qdf_export_symbol(wlan_crypto_get_key_type); |
| 671 | /** |
Ashok Ponnaiah | afb8893 | 2018-04-17 10:15:24 +0530 | [diff] [blame] | 672 | * wlan_crypto_vdev_getkey - get key from vdev |
| 673 | * @vdev: vdev |
| 674 | * @keyix: keyix |
| 675 | * |
| 676 | * This function gets key from vdev |
| 677 | * |
| 678 | * Return: key or NULL |
| 679 | */ |
| 680 | struct wlan_crypto_key *wlan_crypto_vdev_getkey(struct wlan_objmgr_vdev *vdev, |
| 681 | uint16_t keyix){ |
| 682 | struct wlan_crypto_comp_priv *crypto_priv; |
| 683 | struct wlan_crypto_params *crypto_params; |
Ashok Ponnaiah | 23668cd | 2018-04-23 14:22:27 +0530 | [diff] [blame] | 684 | struct wlan_crypto_key *key = NULL; |
Ashok Ponnaiah | afb8893 | 2018-04-17 10:15:24 +0530 | [diff] [blame] | 685 | |
| 686 | crypto_params = wlan_crypto_vdev_get_comp_params(vdev, &crypto_priv); |
| 687 | |
| 688 | if (crypto_priv == NULL) { |
| 689 | qdf_print("%s[%d] crypto_priv NULL\n", __func__, __LINE__); |
| 690 | return NULL; |
| 691 | } |
| 692 | |
| 693 | if (keyix == WLAN_CRYPTO_KEYIX_NONE || keyix >= WLAN_CRYPTO_MAXKEYIDX) |
Ashok Ponnaiah | 23668cd | 2018-04-23 14:22:27 +0530 | [diff] [blame] | 694 | key = crypto_priv->key[crypto_priv->def_tx_keyid]; |
Ashok Ponnaiah | afb8893 | 2018-04-17 10:15:24 +0530 | [diff] [blame] | 695 | else |
Ashok Ponnaiah | 23668cd | 2018-04-23 14:22:27 +0530 | [diff] [blame] | 696 | key = crypto_priv->key[keyix]; |
| 697 | |
| 698 | if (key && key->valid) |
| 699 | return key; |
| 700 | |
| 701 | return NULL; |
Ashok Ponnaiah | afb8893 | 2018-04-17 10:15:24 +0530 | [diff] [blame] | 702 | } |
Ashok Ponnaiah | 23668cd | 2018-04-23 14:22:27 +0530 | [diff] [blame] | 703 | qdf_export_symbol(wlan_crypto_vdev_getkey); |
Ashok Ponnaiah | afb8893 | 2018-04-17 10:15:24 +0530 | [diff] [blame] | 704 | |
| 705 | /** |
| 706 | * wlan_crypto_peer_getkey - get key from peer |
| 707 | * @peer: peer |
| 708 | * @keyix: keyix |
| 709 | * |
| 710 | * This function gets key from peer |
| 711 | * |
| 712 | * Return: key or NULL |
| 713 | */ |
| 714 | struct wlan_crypto_key *wlan_crypto_peer_getkey(struct wlan_objmgr_peer *peer, |
| 715 | uint16_t keyix){ |
| 716 | struct wlan_crypto_comp_priv *crypto_priv; |
| 717 | struct wlan_crypto_params *crypto_params; |
Ashok Ponnaiah | 23668cd | 2018-04-23 14:22:27 +0530 | [diff] [blame] | 718 | struct wlan_crypto_key *key = NULL; |
Ashok Ponnaiah | afb8893 | 2018-04-17 10:15:24 +0530 | [diff] [blame] | 719 | |
| 720 | crypto_params = wlan_crypto_peer_get_comp_params(peer, &crypto_priv); |
| 721 | |
| 722 | if (crypto_priv == NULL) { |
| 723 | qdf_print("%s[%d] crypto_priv NULL\n", __func__, __LINE__); |
| 724 | return NULL; |
| 725 | } |
| 726 | |
| 727 | if (keyix == WLAN_CRYPTO_KEYIX_NONE || keyix >= WLAN_CRYPTO_MAXKEYIDX) |
Ashok Ponnaiah | 23668cd | 2018-04-23 14:22:27 +0530 | [diff] [blame] | 728 | key = crypto_priv->key[crypto_priv->def_tx_keyid]; |
Ashok Ponnaiah | afb8893 | 2018-04-17 10:15:24 +0530 | [diff] [blame] | 729 | else |
Ashok Ponnaiah | 23668cd | 2018-04-23 14:22:27 +0530 | [diff] [blame] | 730 | key = crypto_priv->key[keyix]; |
| 731 | |
| 732 | if (key && key->valid) |
| 733 | return key; |
| 734 | |
| 735 | return NULL; |
Ashok Ponnaiah | afb8893 | 2018-04-17 10:15:24 +0530 | [diff] [blame] | 736 | } |
Ashok Ponnaiah | 23668cd | 2018-04-23 14:22:27 +0530 | [diff] [blame] | 737 | qdf_export_symbol(wlan_crypto_peer_getkey); |
Ashok Ponnaiah | afb8893 | 2018-04-17 10:15:24 +0530 | [diff] [blame] | 738 | |
| 739 | /** |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 740 | * wlan_crypto_getkey - called by ucfg to get key |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 741 | * @vdev: vdev |
| 742 | * @req_key: key value will be copied in this req_key |
| 743 | * @mac_address: mac address of the peer for unicast key |
| 744 | * or broadcast address if group key is requested. |
Ashok Ponnaiah | f995360 | 2018-01-11 15:39:26 +0530 | [diff] [blame] | 745 | * |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 746 | * This function gets called from ucfg to get key |
| 747 | * |
| 748 | * Return: QDF_STATUS_SUCCESS - in case of success |
| 749 | */ |
| 750 | QDF_STATUS wlan_crypto_getkey(struct wlan_objmgr_vdev *vdev, |
| 751 | struct wlan_crypto_req_key *req_key, |
| 752 | uint8_t *mac_addr){ |
Ashok Ponnaiah | 13e9f9b | 2017-03-14 04:45:29 +0530 | [diff] [blame] | 753 | struct wlan_crypto_cipher *cipher_table; |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 754 | struct wlan_crypto_key *key; |
Ashok Ponnaiah | 439d7b5 | 2017-03-21 11:20:36 +0530 | [diff] [blame] | 755 | struct wlan_objmgr_psoc *psoc; |
| 756 | uint8_t macaddr[WLAN_ALEN] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff}; |
| 757 | |
Ashok Ponnaiah | 150a294 | 2017-07-10 17:19:47 +0530 | [diff] [blame] | 758 | if ((req_key->keyix != WLAN_CRYPTO_KEYIX_NONE) && |
| 759 | (req_key->keyix >= WLAN_CRYPTO_MAXKEYIDX)) { |
| 760 | qdf_print("%s[%d] invalid keyix %d\n", __func__, __LINE__, |
| 761 | req_key->keyix); |
| 762 | return QDF_STATUS_E_INVAL; |
| 763 | } |
| 764 | |
Ashok Ponnaiah | 439d7b5 | 2017-03-21 11:20:36 +0530 | [diff] [blame] | 765 | wlan_vdev_obj_lock(vdev); |
| 766 | qdf_mem_copy(macaddr, wlan_vdev_mlme_get_macaddr(vdev), WLAN_ALEN); |
| 767 | psoc = wlan_vdev_get_psoc(vdev); |
| 768 | if (!psoc) { |
| 769 | wlan_vdev_obj_unlock(vdev); |
| 770 | qdf_print("%s[%d] psoc NULL\n", __func__, __LINE__); |
| 771 | return QDF_STATUS_E_INVAL; |
| 772 | } |
| 773 | wlan_vdev_obj_unlock(vdev); |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 774 | |
| 775 | if (qdf_is_macaddr_broadcast((struct qdf_mac_addr *)mac_addr)) { |
Ashok Ponnaiah | afb8893 | 2018-04-17 10:15:24 +0530 | [diff] [blame] | 776 | key = wlan_crypto_vdev_getkey(vdev, req_key->keyix); |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 777 | if (!key) |
| 778 | return QDF_STATUS_E_INVAL; |
| 779 | } else { |
| 780 | struct wlan_objmgr_peer *peer; |
Amir Patel | d338594 | 2018-05-03 23:01:08 +0530 | [diff] [blame] | 781 | uint8_t pdev_id; |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 782 | |
Amir Patel | d338594 | 2018-05-03 23:01:08 +0530 | [diff] [blame] | 783 | pdev_id = wlan_objmgr_pdev_get_pdev_id( |
| 784 | wlan_vdev_get_pdev(vdev)); |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 785 | peer = wlan_objmgr_get_peer_by_mac_n_vdev( |
Ashok Ponnaiah | 439d7b5 | 2017-03-21 11:20:36 +0530 | [diff] [blame] | 786 | psoc, |
Amir Patel | d338594 | 2018-05-03 23:01:08 +0530 | [diff] [blame] | 787 | pdev_id, |
Ashok Ponnaiah | 439d7b5 | 2017-03-21 11:20:36 +0530 | [diff] [blame] | 788 | macaddr, |
Amir Patel | d338594 | 2018-05-03 23:01:08 +0530 | [diff] [blame] | 789 | mac_addr, |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 790 | WLAN_CRYPTO_ID); |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 791 | if (peer == NULL) { |
Nandha Kishore Easwaran | 434838f | 2017-10-29 00:47:11 +0530 | [diff] [blame] | 792 | QDF_TRACE(QDF_MODULE_ID_CRYPTO, QDF_TRACE_LEVEL_ERROR, |
| 793 | "%s[%d] peer NULL\n", __func__, __LINE__); |
| 794 | return QDF_STATUS_E_NOENT; |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 795 | } |
Ashok Ponnaiah | afb8893 | 2018-04-17 10:15:24 +0530 | [diff] [blame] | 796 | key = wlan_crypto_peer_getkey(peer, req_key->keyix); |
Ashok Ponnaiah | c1797fd | 2018-05-04 09:42:02 +0530 | [diff] [blame^] | 797 | wlan_objmgr_peer_release_ref(peer, WLAN_CRYPTO_ID); |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 798 | if (!key) |
| 799 | return QDF_STATUS_E_INVAL; |
| 800 | } |
| 801 | |
| 802 | if (key->valid) { |
| 803 | qdf_mem_copy(req_key->keydata, |
Ashok Ponnaiah | 13e9f9b | 2017-03-14 04:45:29 +0530 | [diff] [blame] | 804 | key->keyval, key->keylen); |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 805 | qdf_mem_copy((uint8_t *)(&req_key->keytsc), |
| 806 | (uint8_t *)(&key->keytsc), |
| 807 | sizeof(req_key->keytsc)); |
| 808 | qdf_mem_copy((uint8_t *)(&req_key->keyrsc), |
| 809 | (uint8_t *)(&key->keyrsc[0]), |
| 810 | sizeof(req_key->keyrsc)); |
| 811 | req_key->keylen = key->keylen; |
Ashok Ponnaiah | 13e9f9b | 2017-03-14 04:45:29 +0530 | [diff] [blame] | 812 | req_key->flags = key->flags; |
| 813 | cipher_table = (struct wlan_crypto_cipher *)key->cipher_table; |
Ashok Ponnaiah | 2a3df50 | 2017-07-07 17:01:41 +0530 | [diff] [blame] | 814 | |
| 815 | if (!cipher_table) |
| 816 | return QDF_STATUS_SUCCESS; |
| 817 | |
Ashok Ponnaiah | 13e9f9b | 2017-03-14 04:45:29 +0530 | [diff] [blame] | 818 | req_key->type = cipher_table->cipher; |
Rohan Dutta | bec3ab7 | 2017-09-22 12:32:23 +0530 | [diff] [blame] | 819 | if (req_key->type == WLAN_CRYPTO_CIPHER_WAPI_SMS4) { |
| 820 | qdf_mem_copy((uint8_t *)(&req_key->txiv), |
| 821 | (uint8_t *)(key->txiv), |
| 822 | sizeof(req_key->txiv)); |
| 823 | qdf_mem_copy((uint8_t *)(&req_key->recviv), |
| 824 | (uint8_t *)(key->recviv), |
| 825 | sizeof(req_key->recviv)); |
| 826 | } |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 827 | } |
| 828 | |
| 829 | return QDF_STATUS_SUCCESS; |
| 830 | } |
| 831 | |
| 832 | /** |
| 833 | * wlan_crypto_delkey - called by ucfg to delete key |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 834 | * @vdev: vdev |
| 835 | * @mac_address: mac address of the peer for unicast key |
| 836 | * or broadcast address if group key is deleted. |
| 837 | * @key_idx: key index to be deleted |
Ashok Ponnaiah | f995360 | 2018-01-11 15:39:26 +0530 | [diff] [blame] | 838 | * |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 839 | * This function gets called from ucfg to delete key |
| 840 | * |
| 841 | * Return: QDF_STATUS_SUCCESS - in case of success |
| 842 | */ |
| 843 | QDF_STATUS wlan_crypto_delkey(struct wlan_objmgr_vdev *vdev, |
| 844 | uint8_t *macaddr, |
| 845 | uint8_t key_idx){ |
| 846 | struct wlan_crypto_comp_priv *crypto_priv; |
| 847 | struct wlan_crypto_params *crypto_params; |
| 848 | struct wlan_crypto_key *key; |
| 849 | struct wlan_crypto_cipher *cipher_table; |
Ashok Ponnaiah | 439d7b5 | 2017-03-21 11:20:36 +0530 | [diff] [blame] | 850 | struct wlan_objmgr_psoc *psoc; |
Ashok Ponnaiah | b696221 | 2017-07-31 10:12:57 +0530 | [diff] [blame] | 851 | uint8_t bssid_mac[WLAN_ALEN]; |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 852 | |
Nandha Kishore Easwaran | b0ac369 | 2017-12-08 10:39:00 +0530 | [diff] [blame] | 853 | if (!vdev || !macaddr || |
Disha Das | 76210cd | 2018-04-10 12:44:14 +0530 | [diff] [blame] | 854 | (key_idx >= |
Nandha Kishore Easwaran | b0ac369 | 2017-12-08 10:39:00 +0530 | [diff] [blame] | 855 | (WLAN_CRYPTO_MAXKEYIDX + WLAN_CRYPTO_MAXIGTKKEYIDX))) { |
Disha Das | 19fa323 | 2018-02-16 14:58:19 +0530 | [diff] [blame] | 856 | QDF_TRACE(QDF_MODULE_ID_CRYPTO, QDF_TRACE_LEVEL_ERROR, |
| 857 | "%s[%d] Invalid params vdev %pK, macaddr %pK" |
Ashok Ponnaiah | 2a3df50 | 2017-07-07 17:01:41 +0530 | [diff] [blame] | 858 | "keyidx %d\n", __func__, __LINE__, vdev, |
| 859 | macaddr, key_idx); |
Ashok Ponnaiah | 13e9f9b | 2017-03-14 04:45:29 +0530 | [diff] [blame] | 860 | return QDF_STATUS_E_INVAL; |
| 861 | } |
Ashok Ponnaiah | 439d7b5 | 2017-03-21 11:20:36 +0530 | [diff] [blame] | 862 | |
| 863 | wlan_vdev_obj_lock(vdev); |
| 864 | qdf_mem_copy(bssid_mac, wlan_vdev_mlme_get_macaddr(vdev), WLAN_ALEN); |
| 865 | psoc = wlan_vdev_get_psoc(vdev); |
| 866 | if (!psoc) { |
| 867 | wlan_vdev_obj_unlock(vdev); |
| 868 | qdf_print("%s[%d] psoc NULL\n", __func__, __LINE__); |
| 869 | return QDF_STATUS_E_INVAL; |
| 870 | } |
| 871 | wlan_vdev_obj_unlock(vdev); |
| 872 | |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 873 | if (qdf_is_macaddr_broadcast((struct qdf_mac_addr *)macaddr)) { |
| 874 | crypto_params = wlan_crypto_vdev_get_comp_params(vdev, |
| 875 | &crypto_priv); |
| 876 | if (crypto_priv == NULL) { |
| 877 | qdf_print("%s[%d] crypto_priv NULL\n", |
| 878 | __func__, __LINE__); |
| 879 | return QDF_STATUS_E_INVAL; |
| 880 | } |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 881 | } else { |
| 882 | struct wlan_objmgr_peer *peer; |
Amir Patel | d338594 | 2018-05-03 23:01:08 +0530 | [diff] [blame] | 883 | uint8_t pdev_id; |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 884 | |
Amir Patel | d338594 | 2018-05-03 23:01:08 +0530 | [diff] [blame] | 885 | pdev_id = wlan_objmgr_pdev_get_pdev_id( |
| 886 | wlan_vdev_get_pdev(vdev)); |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 887 | peer = wlan_objmgr_get_peer_by_mac_n_vdev( |
Amir Patel | d338594 | 2018-05-03 23:01:08 +0530 | [diff] [blame] | 888 | psoc, pdev_id, |
Ashok Ponnaiah | 439d7b5 | 2017-03-21 11:20:36 +0530 | [diff] [blame] | 889 | bssid_mac, |
Amir Patel | d338594 | 2018-05-03 23:01:08 +0530 | [diff] [blame] | 890 | macaddr, |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 891 | WLAN_CRYPTO_ID); |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 892 | if (peer == NULL) { |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 893 | return QDF_STATUS_E_INVAL; |
| 894 | } |
| 895 | crypto_params = wlan_crypto_peer_get_comp_params(peer, |
| 896 | &crypto_priv); |
| 897 | wlan_objmgr_peer_release_ref(peer, WLAN_CRYPTO_ID); |
| 898 | if (crypto_priv == NULL) { |
| 899 | qdf_print("%s[%d] crypto_priv NULL\n", |
| 900 | __func__, __LINE__); |
| 901 | return QDF_STATUS_E_INVAL; |
| 902 | } |
Nandha Kishore Easwaran | b0ac369 | 2017-12-08 10:39:00 +0530 | [diff] [blame] | 903 | } |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 904 | |
Nandha Kishore Easwaran | b0ac369 | 2017-12-08 10:39:00 +0530 | [diff] [blame] | 905 | if (key_idx >= WLAN_CRYPTO_MAXKEYIDX) { |
| 906 | uint8_t igtk_idx = key_idx - WLAN_CRYPTO_MAXKEYIDX; |
Radhika Sriram | 00392f3 | 2018-04-04 19:04:49 +0530 | [diff] [blame] | 907 | if (igtk_idx >= WLAN_CRYPTO_MAXIGTKKEYIDX) { |
| 908 | qdf_print("%s[%d] Igtk key invalid keyid %d\n", |
| 909 | __func__, __LINE__, igtk_idx); |
| 910 | return QDF_STATUS_E_INVAL; |
| 911 | } |
Nandha Kishore Easwaran | b0ac369 | 2017-12-08 10:39:00 +0530 | [diff] [blame] | 912 | key = crypto_priv->igtk_key[igtk_idx]; |
| 913 | crypto_priv->igtk_key[igtk_idx] = NULL; |
Nandha Kishore Easwaran | f832d98 | 2017-12-18 10:42:15 +0530 | [diff] [blame] | 914 | if (key) |
| 915 | key->valid = 0; |
Nandha Kishore Easwaran | b0ac369 | 2017-12-08 10:39:00 +0530 | [diff] [blame] | 916 | } else { |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 917 | key = crypto_priv->key[key_idx]; |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 918 | crypto_priv->key[key_idx] = NULL; |
| 919 | } |
Nandha Kishore Easwaran | b0ac369 | 2017-12-08 10:39:00 +0530 | [diff] [blame] | 920 | |
| 921 | if (!key) |
| 922 | return QDF_STATUS_E_INVAL; |
| 923 | |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 924 | if (key->valid) { |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 925 | cipher_table = (struct wlan_crypto_cipher *)key->cipher_table; |
| 926 | |
| 927 | if (WLAN_CRYPTO_TX_OPS_DELKEY(psoc)) { |
| 928 | WLAN_CRYPTO_TX_OPS_DELKEY(psoc)(vdev, key, |
| 929 | macaddr, cipher_table->cipher); |
| 930 | } |
| 931 | } |
| 932 | qdf_mem_free(key); |
| 933 | |
| 934 | return QDF_STATUS_SUCCESS; |
| 935 | } |
| 936 | |
| 937 | /** |
| 938 | * wlan_crypto_default_key - called by ucfg to set default tx key |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 939 | * @vdev: vdev |
| 940 | * @mac_address: mac address of the peer for unicast key |
| 941 | * or broadcast address if group key need to made default. |
| 942 | * @key_idx: key index to be made as default key |
| 943 | * @unicast: is key was unicast or group key. |
Ashok Ponnaiah | f995360 | 2018-01-11 15:39:26 +0530 | [diff] [blame] | 944 | * |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 945 | * This function gets called from ucfg to set default key |
| 946 | * |
| 947 | * Return: QDF_STATUS_SUCCESS - in case of success |
| 948 | */ |
| 949 | QDF_STATUS wlan_crypto_default_key(struct wlan_objmgr_vdev *vdev, |
| 950 | uint8_t *macaddr, |
| 951 | uint8_t key_idx, |
| 952 | bool unicast){ |
| 953 | struct wlan_crypto_comp_priv *crypto_priv; |
| 954 | struct wlan_crypto_params *crypto_params; |
| 955 | struct wlan_crypto_key *key; |
| 956 | struct wlan_objmgr_psoc *psoc; |
Ashok Ponnaiah | b696221 | 2017-07-31 10:12:57 +0530 | [diff] [blame] | 957 | uint8_t bssid_mac[WLAN_ALEN]; |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 958 | |
Disha Das | 55b86c2 | 2018-04-20 15:22:08 +0530 | [diff] [blame] | 959 | if (!vdev || !macaddr || (key_idx >= WLAN_CRYPTO_MAXKEYIDX)) { |
| 960 | qdf_print("%s[%d] Invalid params vdev %pK, macaddr %pK" |
| 961 | "keyidx %d\n", __func__, __LINE__, |
| 962 | vdev, macaddr, key_idx); |
| 963 | return QDF_STATUS_E_INVAL; |
| 964 | } |
| 965 | |
Ashok Ponnaiah | 439d7b5 | 2017-03-21 11:20:36 +0530 | [diff] [blame] | 966 | wlan_vdev_obj_lock(vdev); |
| 967 | qdf_mem_copy(bssid_mac, wlan_vdev_mlme_get_macaddr(vdev), WLAN_ALEN); |
| 968 | psoc = wlan_vdev_get_psoc(vdev); |
| 969 | if (!psoc) { |
| 970 | wlan_vdev_obj_unlock(vdev); |
| 971 | qdf_print("%s[%d] psoc NULL\n", __func__, __LINE__); |
| 972 | return QDF_STATUS_E_INVAL; |
| 973 | } |
| 974 | wlan_vdev_obj_unlock(vdev); |
| 975 | |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 976 | if (qdf_is_macaddr_broadcast((struct qdf_mac_addr *)macaddr)) { |
| 977 | crypto_params = wlan_crypto_vdev_get_comp_params(vdev, |
| 978 | &crypto_priv); |
| 979 | if (crypto_priv == NULL) { |
| 980 | qdf_print("%s[%d] crypto_priv NULL\n", |
| 981 | __func__, __LINE__); |
| 982 | return QDF_STATUS_E_INVAL; |
| 983 | } |
| 984 | |
| 985 | key = crypto_priv->key[key_idx]; |
| 986 | if (!key) |
| 987 | return QDF_STATUS_E_INVAL; |
| 988 | } else { |
| 989 | struct wlan_objmgr_peer *peer; |
Amir Patel | d338594 | 2018-05-03 23:01:08 +0530 | [diff] [blame] | 990 | uint8_t pdev_id; |
| 991 | |
| 992 | pdev_id = wlan_objmgr_pdev_get_pdev_id( |
| 993 | wlan_vdev_get_pdev(vdev)); |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 994 | peer = wlan_objmgr_get_peer_by_mac_n_vdev( |
Amir Patel | d338594 | 2018-05-03 23:01:08 +0530 | [diff] [blame] | 995 | psoc, pdev_id, |
Ashok Ponnaiah | 439d7b5 | 2017-03-21 11:20:36 +0530 | [diff] [blame] | 996 | bssid_mac, |
Amir Patel | d338594 | 2018-05-03 23:01:08 +0530 | [diff] [blame] | 997 | macaddr, |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 998 | WLAN_CRYPTO_ID); |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 999 | |
| 1000 | if (peer == NULL) { |
| 1001 | qdf_print("%s[%d] peer NULL\n", __func__, __LINE__); |
| 1002 | return QDF_STATUS_E_INVAL; |
| 1003 | } |
| 1004 | crypto_params = wlan_crypto_peer_get_comp_params(peer, |
| 1005 | &crypto_priv); |
| 1006 | wlan_objmgr_peer_release_ref(peer, WLAN_CRYPTO_ID); |
| 1007 | if (crypto_priv == NULL) { |
| 1008 | qdf_print("%s[%d] crypto_priv NULL\n", |
| 1009 | __func__, __LINE__); |
| 1010 | return QDF_STATUS_E_INVAL; |
| 1011 | } |
| 1012 | |
| 1013 | key = crypto_priv->key[key_idx]; |
| 1014 | if (!key) |
| 1015 | return QDF_STATUS_E_INVAL; |
| 1016 | } |
| 1017 | if (!key->valid) |
| 1018 | return QDF_STATUS_E_INVAL; |
| 1019 | |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 1020 | if (WLAN_CRYPTO_TX_OPS_DEFAULTKEY(psoc)) { |
| 1021 | WLAN_CRYPTO_TX_OPS_DEFAULTKEY(psoc)(vdev, key_idx, |
| 1022 | macaddr); |
| 1023 | } |
Ashok Ponnaiah | 13e9f9b | 2017-03-14 04:45:29 +0530 | [diff] [blame] | 1024 | crypto_priv->def_tx_keyid = key_idx; |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 1025 | |
| 1026 | return QDF_STATUS_SUCCESS; |
| 1027 | } |
| 1028 | |
| 1029 | /** |
| 1030 | * wlan_crypto_encap - called by mgmt for encap the frame based on cipher |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 1031 | * @vdev: vdev |
| 1032 | * @wbuf: wbuf |
| 1033 | * @macaddr: macaddr |
| 1034 | * @encapdone: is encapdone already or not. |
Ashok Ponnaiah | f995360 | 2018-01-11 15:39:26 +0530 | [diff] [blame] | 1035 | * |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 1036 | * This function gets called from mgmt txrx to encap frame. |
| 1037 | * |
| 1038 | * Return: QDF_STATUS_SUCCESS - in case of success |
| 1039 | */ |
| 1040 | QDF_STATUS wlan_crypto_encap(struct wlan_objmgr_vdev *vdev, |
| 1041 | qdf_nbuf_t wbuf, |
| 1042 | uint8_t *mac_addr, |
| 1043 | uint8_t encapdone){ |
| 1044 | struct wlan_crypto_comp_priv *crypto_priv; |
| 1045 | struct wlan_crypto_params *crypto_params; |
| 1046 | struct wlan_crypto_key *key; |
| 1047 | QDF_STATUS status; |
| 1048 | struct wlan_crypto_cipher *cipher_table; |
Ashok Ponnaiah | 439d7b5 | 2017-03-21 11:20:36 +0530 | [diff] [blame] | 1049 | struct wlan_objmgr_psoc *psoc; |
Subrat Mishra | 2b75d6d | 2017-08-07 17:36:25 +0530 | [diff] [blame] | 1050 | struct wlan_objmgr_peer *peer; |
Ashok Ponnaiah | b696221 | 2017-07-31 10:12:57 +0530 | [diff] [blame] | 1051 | uint8_t bssid_mac[WLAN_ALEN]; |
Amir Patel | d338594 | 2018-05-03 23:01:08 +0530 | [diff] [blame] | 1052 | uint8_t pdev_id; |
Ashok Ponnaiah | 439d7b5 | 2017-03-21 11:20:36 +0530 | [diff] [blame] | 1053 | |
| 1054 | wlan_vdev_obj_lock(vdev); |
| 1055 | qdf_mem_copy(bssid_mac, wlan_vdev_mlme_get_macaddr(vdev), WLAN_ALEN); |
| 1056 | psoc = wlan_vdev_get_psoc(vdev); |
| 1057 | if (!psoc) { |
| 1058 | wlan_vdev_obj_unlock(vdev); |
| 1059 | qdf_print("%s[%d] psoc NULL\n", __func__, __LINE__); |
| 1060 | return QDF_STATUS_E_INVAL; |
| 1061 | } |
| 1062 | wlan_vdev_obj_unlock(vdev); |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 1063 | |
Amir Patel | d338594 | 2018-05-03 23:01:08 +0530 | [diff] [blame] | 1064 | pdev_id = wlan_objmgr_pdev_get_pdev_id(wlan_vdev_get_pdev(vdev)); |
Subrat Mishra | 2b75d6d | 2017-08-07 17:36:25 +0530 | [diff] [blame] | 1065 | /* FILS Encap required only for (Re-)Assoc response */ |
Amir Patel | d338594 | 2018-05-03 23:01:08 +0530 | [diff] [blame] | 1066 | peer = wlan_objmgr_get_peer(psoc, pdev_id, mac_addr, WLAN_CRYPTO_ID); |
Subrat Mishra | 2b75d6d | 2017-08-07 17:36:25 +0530 | [diff] [blame] | 1067 | |
| 1068 | if (!wlan_crypto_is_data_protected((uint8_t *)qdf_nbuf_data(wbuf)) && |
| 1069 | peer && !wlan_crypto_get_peer_fils_aead(peer)) { |
| 1070 | wlan_objmgr_peer_release_ref(peer, WLAN_CRYPTO_ID); |
| 1071 | return QDF_STATUS_E_INVAL; |
| 1072 | } |
| 1073 | |
| 1074 | if (peer) |
| 1075 | wlan_objmgr_peer_release_ref(peer, WLAN_CRYPTO_ID); |
| 1076 | |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 1077 | if (qdf_is_macaddr_broadcast((struct qdf_mac_addr *)mac_addr)) { |
| 1078 | crypto_params = wlan_crypto_vdev_get_comp_params(vdev, |
| 1079 | &crypto_priv); |
| 1080 | if (crypto_priv == NULL) { |
| 1081 | qdf_print("%s[%d] crypto_priv NULL\n", |
| 1082 | __func__, __LINE__); |
| 1083 | return QDF_STATUS_E_INVAL; |
| 1084 | } |
| 1085 | |
| 1086 | key = crypto_priv->key[crypto_priv->def_tx_keyid]; |
| 1087 | if (!key) |
| 1088 | return QDF_STATUS_E_INVAL; |
| 1089 | |
| 1090 | } else { |
| 1091 | struct wlan_objmgr_peer *peer; |
Amir Patel | d338594 | 2018-05-03 23:01:08 +0530 | [diff] [blame] | 1092 | uint8_t pdev_id; |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 1093 | |
Amir Patel | d338594 | 2018-05-03 23:01:08 +0530 | [diff] [blame] | 1094 | pdev_id = wlan_objmgr_pdev_get_pdev_id( |
| 1095 | wlan_vdev_get_pdev(vdev)); |
| 1096 | peer = wlan_objmgr_get_peer_by_mac_n_vdev(psoc, pdev_id, |
| 1097 | bssid_mac, mac_addr, |
| 1098 | WLAN_CRYPTO_ID); |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 1099 | |
| 1100 | if (peer == NULL) { |
| 1101 | qdf_print("%s[%d] crypto_priv NULL\n", |
| 1102 | __func__, __LINE__); |
| 1103 | return QDF_STATUS_E_INVAL; |
| 1104 | } |
| 1105 | crypto_params = wlan_crypto_peer_get_comp_params(peer, |
| 1106 | &crypto_priv); |
| 1107 | wlan_objmgr_peer_release_ref(peer, WLAN_CRYPTO_ID); |
| 1108 | |
| 1109 | if (crypto_priv == NULL) { |
| 1110 | qdf_print("%s[%d] crypto_priv NULL\n", |
| 1111 | __func__, __LINE__); |
| 1112 | return QDF_STATUS_E_INVAL; |
| 1113 | } |
| 1114 | |
| 1115 | key = crypto_priv->key[crypto_priv->def_tx_keyid]; |
| 1116 | if (!key) |
| 1117 | return QDF_STATUS_E_INVAL; |
| 1118 | } |
| 1119 | /* if tkip, is counter measures enabled, then drop the frame */ |
| 1120 | cipher_table = (struct wlan_crypto_cipher *)key->cipher_table; |
| 1121 | status = cipher_table->encap(key, wbuf, encapdone, |
Ashok Ponnaiah | 2a3df50 | 2017-07-07 17:01:41 +0530 | [diff] [blame] | 1122 | ieee80211_hdrsize((uint8_t *)qdf_nbuf_data(wbuf))); |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 1123 | |
| 1124 | return status; |
| 1125 | } |
Manikandan Mohan | a2993a5 | 2018-03-01 16:21:55 -0800 | [diff] [blame] | 1126 | qdf_export_symbol(wlan_crypto_encap); |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 1127 | |
| 1128 | /** |
| 1129 | * wlan_crypto_decap - called by mgmt for decap the frame based on cipher |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 1130 | * @vdev: vdev |
| 1131 | * @wbuf: wbuf |
| 1132 | * @macaddr: macaddr |
| 1133 | * @tid: tid of the frame |
Ashok Ponnaiah | f995360 | 2018-01-11 15:39:26 +0530 | [diff] [blame] | 1134 | * |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 1135 | * This function gets called from mgmt txrx to decap frame. |
| 1136 | * |
| 1137 | * Return: QDF_STATUS_SUCCESS - in case of success |
| 1138 | */ |
| 1139 | QDF_STATUS wlan_crypto_decap(struct wlan_objmgr_vdev *vdev, |
| 1140 | qdf_nbuf_t wbuf, |
| 1141 | uint8_t *mac_addr, |
| 1142 | uint8_t tid){ |
| 1143 | struct wlan_crypto_comp_priv *crypto_priv; |
| 1144 | struct wlan_crypto_params *crypto_params; |
| 1145 | struct wlan_crypto_key *key; |
| 1146 | QDF_STATUS status; |
| 1147 | struct wlan_crypto_cipher *cipher_table; |
Ashok Ponnaiah | 439d7b5 | 2017-03-21 11:20:36 +0530 | [diff] [blame] | 1148 | struct wlan_objmgr_psoc *psoc; |
Subrat Mishra | 2b75d6d | 2017-08-07 17:36:25 +0530 | [diff] [blame] | 1149 | struct wlan_objmgr_peer *peer; |
Ashok Ponnaiah | b696221 | 2017-07-31 10:12:57 +0530 | [diff] [blame] | 1150 | uint8_t bssid_mac[WLAN_ALEN]; |
Ashok Ponnaiah | e25c64c | 2018-04-09 15:34:14 +0530 | [diff] [blame] | 1151 | uint8_t keyid; |
Amir Patel | d338594 | 2018-05-03 23:01:08 +0530 | [diff] [blame] | 1152 | uint8_t pdev_id; |
Ashok Ponnaiah | 439d7b5 | 2017-03-21 11:20:36 +0530 | [diff] [blame] | 1153 | |
| 1154 | wlan_vdev_obj_lock(vdev); |
| 1155 | qdf_mem_copy(bssid_mac, wlan_vdev_mlme_get_macaddr(vdev), WLAN_ALEN); |
| 1156 | psoc = wlan_vdev_get_psoc(vdev); |
| 1157 | if (!psoc) { |
| 1158 | wlan_vdev_obj_unlock(vdev); |
| 1159 | qdf_print("%s[%d] psoc NULL\n", __func__, __LINE__); |
| 1160 | return QDF_STATUS_E_INVAL; |
| 1161 | } |
| 1162 | wlan_vdev_obj_unlock(vdev); |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 1163 | |
Ashok Ponnaiah | e25c64c | 2018-04-09 15:34:14 +0530 | [diff] [blame] | 1164 | keyid = wlan_crypto_get_keyid((uint8_t *)qdf_nbuf_data(wbuf)); |
| 1165 | |
| 1166 | if (keyid >= WLAN_CRYPTO_MAXKEYIDX) |
| 1167 | return QDF_STATUS_E_INVAL; |
| 1168 | |
Amir Patel | d338594 | 2018-05-03 23:01:08 +0530 | [diff] [blame] | 1169 | pdev_id = wlan_objmgr_pdev_get_pdev_id(wlan_vdev_get_pdev(vdev)); |
Subrat Mishra | 2b75d6d | 2017-08-07 17:36:25 +0530 | [diff] [blame] | 1170 | /* FILS Decap required only for (Re-)Assoc request */ |
Amir Patel | d338594 | 2018-05-03 23:01:08 +0530 | [diff] [blame] | 1171 | peer = wlan_objmgr_get_peer(psoc, pdev_id, mac_addr, WLAN_CRYPTO_ID); |
Subrat Mishra | 2b75d6d | 2017-08-07 17:36:25 +0530 | [diff] [blame] | 1172 | |
| 1173 | if (!wlan_crypto_is_data_protected((uint8_t *)qdf_nbuf_data(wbuf)) && |
| 1174 | peer && !wlan_crypto_get_peer_fils_aead(peer)) { |
| 1175 | wlan_objmgr_peer_release_ref(peer, WLAN_CRYPTO_ID); |
| 1176 | return QDF_STATUS_E_INVAL; |
| 1177 | } |
| 1178 | |
| 1179 | if (peer) |
| 1180 | wlan_objmgr_peer_release_ref(peer, WLAN_CRYPTO_ID); |
| 1181 | |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 1182 | if (qdf_is_macaddr_broadcast((struct qdf_mac_addr *)mac_addr)) { |
| 1183 | crypto_params = wlan_crypto_vdev_get_comp_params(vdev, |
| 1184 | &crypto_priv); |
| 1185 | if (crypto_priv == NULL) { |
| 1186 | qdf_print("%s[%d] crypto_priv NULL\n", |
| 1187 | __func__, __LINE__); |
| 1188 | return QDF_STATUS_E_INVAL; |
| 1189 | } |
| 1190 | |
Ashok Ponnaiah | e25c64c | 2018-04-09 15:34:14 +0530 | [diff] [blame] | 1191 | key = crypto_priv->key[keyid]; |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 1192 | if (!key) |
| 1193 | return QDF_STATUS_E_INVAL; |
| 1194 | |
| 1195 | } else { |
| 1196 | struct wlan_objmgr_peer *peer; |
Amir Patel | d338594 | 2018-05-03 23:01:08 +0530 | [diff] [blame] | 1197 | uint8_t pdev_id; |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 1198 | |
Amir Patel | d338594 | 2018-05-03 23:01:08 +0530 | [diff] [blame] | 1199 | pdev_id = wlan_objmgr_pdev_get_pdev_id( |
| 1200 | wlan_vdev_get_pdev(vdev)); |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 1201 | peer = wlan_objmgr_get_peer_by_mac_n_vdev( |
Amir Patel | d338594 | 2018-05-03 23:01:08 +0530 | [diff] [blame] | 1202 | psoc, pdev_id, bssid_mac, |
| 1203 | mac_addr, WLAN_CRYPTO_ID); |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 1204 | if (peer == NULL) { |
| 1205 | qdf_print("%s[%d] peer NULL\n", __func__, __LINE__); |
| 1206 | return QDF_STATUS_E_INVAL; |
| 1207 | } |
| 1208 | |
| 1209 | crypto_params = wlan_crypto_peer_get_comp_params(peer, |
| 1210 | &crypto_priv); |
| 1211 | wlan_objmgr_peer_release_ref(peer, WLAN_CRYPTO_ID); |
| 1212 | |
| 1213 | if (crypto_priv == NULL) { |
| 1214 | qdf_print("%s[%d] crypto_priv NULL\n", |
| 1215 | __func__, __LINE__); |
| 1216 | return QDF_STATUS_E_INVAL; |
| 1217 | } |
| 1218 | |
Ashok Ponnaiah | e25c64c | 2018-04-09 15:34:14 +0530 | [diff] [blame] | 1219 | key = crypto_priv->key[keyid]; |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 1220 | if (!key) |
| 1221 | return QDF_STATUS_E_INVAL; |
| 1222 | } |
| 1223 | /* if tkip, is counter measures enabled, then drop the frame */ |
| 1224 | cipher_table = (struct wlan_crypto_cipher *)key->cipher_table; |
Ashok Ponnaiah | 2a3df50 | 2017-07-07 17:01:41 +0530 | [diff] [blame] | 1225 | status = cipher_table->decap(key, wbuf, tid, |
| 1226 | ieee80211_hdrsize((uint8_t *)qdf_nbuf_data(wbuf))); |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 1227 | |
| 1228 | return status; |
| 1229 | } |
Manikandan Mohan | a2993a5 | 2018-03-01 16:21:55 -0800 | [diff] [blame] | 1230 | qdf_export_symbol(wlan_crypto_decap); |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 1231 | /** |
| 1232 | * wlan_crypto_enmic - called by mgmt for adding mic in frame based on cipher |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 1233 | * @vdev: vdev |
| 1234 | * @wbuf: wbuf |
| 1235 | * @macaddr: macaddr |
| 1236 | * @encapdone: is encapdone already or not. |
Ashok Ponnaiah | f995360 | 2018-01-11 15:39:26 +0530 | [diff] [blame] | 1237 | * |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 1238 | * This function gets called from mgmt txrx to adding mic to the frame. |
| 1239 | * |
| 1240 | * Return: QDF_STATUS_SUCCESS - in case of success |
| 1241 | */ |
| 1242 | QDF_STATUS wlan_crypto_enmic(struct wlan_objmgr_vdev *vdev, |
| 1243 | qdf_nbuf_t wbuf, |
| 1244 | uint8_t *mac_addr, |
| 1245 | uint8_t encapdone){ |
| 1246 | struct wlan_crypto_comp_priv *crypto_priv; |
| 1247 | struct wlan_crypto_params *crypto_params; |
| 1248 | struct wlan_crypto_key *key; |
| 1249 | QDF_STATUS status; |
| 1250 | struct wlan_crypto_cipher *cipher_table; |
Ashok Ponnaiah | 439d7b5 | 2017-03-21 11:20:36 +0530 | [diff] [blame] | 1251 | struct wlan_objmgr_psoc *psoc; |
Ashok Ponnaiah | b696221 | 2017-07-31 10:12:57 +0530 | [diff] [blame] | 1252 | uint8_t bssid_mac[WLAN_ALEN]; |
Ashok Ponnaiah | 439d7b5 | 2017-03-21 11:20:36 +0530 | [diff] [blame] | 1253 | |
Amir Patel | d338594 | 2018-05-03 23:01:08 +0530 | [diff] [blame] | 1254 | |
Ashok Ponnaiah | 439d7b5 | 2017-03-21 11:20:36 +0530 | [diff] [blame] | 1255 | wlan_vdev_obj_lock(vdev); |
| 1256 | qdf_mem_copy(bssid_mac, wlan_vdev_mlme_get_macaddr(vdev), WLAN_ALEN); |
| 1257 | psoc = wlan_vdev_get_psoc(vdev); |
| 1258 | if (!psoc) { |
| 1259 | wlan_vdev_obj_unlock(vdev); |
| 1260 | qdf_print("%s[%d] psoc NULL\n", __func__, __LINE__); |
| 1261 | return QDF_STATUS_E_INVAL; |
| 1262 | } |
| 1263 | wlan_vdev_obj_unlock(vdev); |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 1264 | |
| 1265 | if (qdf_is_macaddr_broadcast((struct qdf_mac_addr *)mac_addr)) { |
| 1266 | crypto_params = wlan_crypto_vdev_get_comp_params(vdev, |
| 1267 | &crypto_priv); |
| 1268 | if (crypto_priv == NULL) { |
| 1269 | qdf_print("%s[%d] crypto_priv NULL\n", |
| 1270 | __func__, __LINE__); |
| 1271 | return QDF_STATUS_E_INVAL; |
| 1272 | } |
| 1273 | |
| 1274 | key = crypto_priv->key[crypto_priv->def_tx_keyid]; |
| 1275 | if (!key) |
| 1276 | return QDF_STATUS_E_INVAL; |
| 1277 | |
| 1278 | } else { |
| 1279 | struct wlan_objmgr_peer *peer; |
Amir Patel | d338594 | 2018-05-03 23:01:08 +0530 | [diff] [blame] | 1280 | uint8_t pdev_id; |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 1281 | |
Amir Patel | d338594 | 2018-05-03 23:01:08 +0530 | [diff] [blame] | 1282 | pdev_id = wlan_objmgr_pdev_get_pdev_id( |
| 1283 | wlan_vdev_get_pdev(vdev)); |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 1284 | peer = wlan_objmgr_get_peer_by_mac_n_vdev( |
Amir Patel | d338594 | 2018-05-03 23:01:08 +0530 | [diff] [blame] | 1285 | psoc, pdev_id, bssid_mac, |
| 1286 | mac_addr, WLAN_CRYPTO_ID); |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 1287 | if (peer == NULL) { |
| 1288 | qdf_print("%s[%d] crypto_priv NULL\n", |
| 1289 | __func__, __LINE__); |
| 1290 | return QDF_STATUS_E_INVAL; |
| 1291 | } |
| 1292 | |
| 1293 | crypto_params = wlan_crypto_peer_get_comp_params(peer, |
| 1294 | &crypto_priv); |
| 1295 | wlan_objmgr_peer_release_ref(peer, WLAN_CRYPTO_ID); |
| 1296 | |
| 1297 | if (crypto_priv == NULL) { |
| 1298 | qdf_print("%s[%d] crypto_priv NULL\n", |
| 1299 | __func__, __LINE__); |
| 1300 | return QDF_STATUS_E_INVAL; |
| 1301 | } |
| 1302 | |
| 1303 | key = crypto_priv->key[crypto_priv->def_tx_keyid]; |
| 1304 | if (!key) |
| 1305 | return QDF_STATUS_E_INVAL; |
| 1306 | } |
| 1307 | /* if tkip, is counter measures enabled, then drop the frame */ |
| 1308 | cipher_table = (struct wlan_crypto_cipher *)key->cipher_table; |
| 1309 | status = cipher_table->enmic(key, wbuf, encapdone, |
Ashok Ponnaiah | 2a3df50 | 2017-07-07 17:01:41 +0530 | [diff] [blame] | 1310 | ieee80211_hdrsize((uint8_t *)qdf_nbuf_data(wbuf))); |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 1311 | |
| 1312 | return status; |
| 1313 | } |
| 1314 | |
| 1315 | /** |
| 1316 | * wlan_crypto_demic - called by mgmt for remove and check mic for |
| 1317 | * the frame based on cipher |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 1318 | * @vdev: vdev |
| 1319 | * @wbuf: wbuf |
| 1320 | * @macaddr: macaddr |
| 1321 | * @tid: tid of the frame |
Ashok Ponnaiah | f995360 | 2018-01-11 15:39:26 +0530 | [diff] [blame] | 1322 | * |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 1323 | * This function gets called from mgmt txrx to decap frame. |
| 1324 | * |
| 1325 | * Return: QDF_STATUS_SUCCESS - in case of success |
| 1326 | */ |
| 1327 | QDF_STATUS wlan_crypto_demic(struct wlan_objmgr_vdev *vdev, |
| 1328 | qdf_nbuf_t wbuf, |
| 1329 | uint8_t *mac_addr, |
| 1330 | uint8_t tid){ |
| 1331 | struct wlan_crypto_comp_priv *crypto_priv; |
| 1332 | struct wlan_crypto_params *crypto_params; |
| 1333 | struct wlan_crypto_key *key; |
| 1334 | QDF_STATUS status; |
| 1335 | struct wlan_crypto_cipher *cipher_table; |
Ashok Ponnaiah | 439d7b5 | 2017-03-21 11:20:36 +0530 | [diff] [blame] | 1336 | struct wlan_objmgr_psoc *psoc; |
Ashok Ponnaiah | b696221 | 2017-07-31 10:12:57 +0530 | [diff] [blame] | 1337 | uint8_t bssid_mac[WLAN_ALEN]; |
Ashok Ponnaiah | 439d7b5 | 2017-03-21 11:20:36 +0530 | [diff] [blame] | 1338 | |
Amir Patel | d338594 | 2018-05-03 23:01:08 +0530 | [diff] [blame] | 1339 | |
Ashok Ponnaiah | 439d7b5 | 2017-03-21 11:20:36 +0530 | [diff] [blame] | 1340 | wlan_vdev_obj_lock(vdev); |
| 1341 | qdf_mem_copy(bssid_mac, wlan_vdev_mlme_get_macaddr(vdev), WLAN_ALEN); |
| 1342 | psoc = wlan_vdev_get_psoc(vdev); |
| 1343 | if (!psoc) { |
| 1344 | wlan_vdev_obj_unlock(vdev); |
| 1345 | qdf_print("%s[%d] psoc NULL\n", __func__, __LINE__); |
| 1346 | return QDF_STATUS_E_INVAL; |
| 1347 | } |
| 1348 | wlan_vdev_obj_unlock(vdev); |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 1349 | |
| 1350 | if (qdf_is_macaddr_broadcast((struct qdf_mac_addr *)mac_addr)) { |
| 1351 | crypto_params = wlan_crypto_vdev_get_comp_params(vdev, |
| 1352 | &crypto_priv); |
| 1353 | if (crypto_priv == NULL) { |
| 1354 | qdf_print("%s[%d] crypto_priv NULL\n", |
| 1355 | __func__, __LINE__); |
| 1356 | return QDF_STATUS_E_INVAL; |
| 1357 | } |
| 1358 | |
| 1359 | key = crypto_priv->key[crypto_priv->def_tx_keyid]; |
| 1360 | if (!key) |
| 1361 | return QDF_STATUS_E_INVAL; |
| 1362 | |
| 1363 | } else { |
| 1364 | struct wlan_objmgr_peer *peer; |
Amir Patel | d338594 | 2018-05-03 23:01:08 +0530 | [diff] [blame] | 1365 | uint8_t pdev_id; |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 1366 | |
Amir Patel | d338594 | 2018-05-03 23:01:08 +0530 | [diff] [blame] | 1367 | pdev_id = wlan_objmgr_pdev_get_pdev_id( |
| 1368 | wlan_vdev_get_pdev(vdev)); |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 1369 | peer = wlan_objmgr_get_peer_by_mac_n_vdev( |
Amir Patel | d338594 | 2018-05-03 23:01:08 +0530 | [diff] [blame] | 1370 | psoc, pdev_id, bssid_mac, |
| 1371 | mac_addr, WLAN_CRYPTO_ID); |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 1372 | if (peer == NULL) { |
| 1373 | qdf_print("%s[%d] peer NULL\n", __func__, __LINE__); |
| 1374 | return QDF_STATUS_E_INVAL; |
| 1375 | } |
| 1376 | |
| 1377 | crypto_params = wlan_crypto_peer_get_comp_params(peer, |
| 1378 | &crypto_priv); |
| 1379 | wlan_objmgr_peer_release_ref(peer, WLAN_CRYPTO_ID); |
| 1380 | |
| 1381 | if (crypto_priv == NULL) { |
| 1382 | qdf_print("%s[%d] crypto_priv NULL\n", |
| 1383 | __func__, __LINE__); |
| 1384 | return QDF_STATUS_E_INVAL; |
| 1385 | } |
| 1386 | |
| 1387 | key = crypto_priv->key[crypto_priv->def_tx_keyid]; |
| 1388 | if (!key) |
| 1389 | return QDF_STATUS_E_INVAL; |
| 1390 | } |
| 1391 | /* if tkip, is counter measures enabled, then drop the frame */ |
| 1392 | cipher_table = (struct wlan_crypto_cipher *)key->cipher_table; |
Ashok Ponnaiah | 2a3df50 | 2017-07-07 17:01:41 +0530 | [diff] [blame] | 1393 | status = cipher_table->demic(key, wbuf, tid, |
| 1394 | ieee80211_hdrsize((uint8_t *)qdf_nbuf_data(wbuf))); |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 1395 | |
| 1396 | return status; |
| 1397 | } |
| 1398 | |
| 1399 | /** |
Ashok Ponnaiah | 2a3df50 | 2017-07-07 17:01:41 +0530 | [diff] [blame] | 1400 | * wlan_crypto_vdev_is_pmf_enabled - called to check is pmf enabled in vdev |
Ashok Ponnaiah | 2a3df50 | 2017-07-07 17:01:41 +0530 | [diff] [blame] | 1401 | * @vdev: vdev |
| 1402 | * |
| 1403 | * This function gets called to check is pmf enabled or not in vdev. |
| 1404 | * |
| 1405 | * Return: true or false |
| 1406 | */ |
| 1407 | bool wlan_crypto_vdev_is_pmf_enabled(struct wlan_objmgr_vdev *vdev) |
| 1408 | { |
| 1409 | |
| 1410 | struct wlan_crypto_comp_priv *crypto_priv; |
| 1411 | struct wlan_crypto_params *vdev_crypto_params; |
| 1412 | |
| 1413 | if (!vdev) |
| 1414 | return false; |
| 1415 | vdev_crypto_params = wlan_crypto_vdev_get_comp_params(vdev, |
| 1416 | &crypto_priv); |
| 1417 | if (crypto_priv == NULL) { |
| 1418 | qdf_print("%s[%d] crypto_priv NULL\n", __func__, __LINE__); |
| 1419 | return QDF_STATUS_E_INVAL; |
| 1420 | } |
| 1421 | |
| 1422 | if ((vdev_crypto_params->rsn_caps & |
| 1423 | WLAN_CRYPTO_RSN_CAP_MFP_ENABLED) |
| 1424 | || (vdev_crypto_params->rsn_caps & |
| 1425 | WLAN_CRYPTO_RSN_CAP_MFP_REQUIRED)) { |
| 1426 | return true; |
| 1427 | } |
| 1428 | |
| 1429 | return false; |
| 1430 | } |
| 1431 | /** |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 1432 | * wlan_crypto_is_pmf_enabled - called by mgmt txrx to check is pmf enabled |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 1433 | * @vdev: vdev |
| 1434 | * @peer: peer |
| 1435 | * |
| 1436 | * This function gets called by mgmt txrx to check is pmf enabled or not. |
| 1437 | * |
| 1438 | * Return: true or false |
| 1439 | */ |
| 1440 | bool wlan_crypto_is_pmf_enabled(struct wlan_objmgr_vdev *vdev, |
| 1441 | struct wlan_objmgr_peer *peer){ |
| 1442 | |
| 1443 | struct wlan_crypto_comp_priv *crypto_priv; |
| 1444 | struct wlan_crypto_params *vdev_crypto_params; |
| 1445 | struct wlan_crypto_params *peer_crypto_params; |
| 1446 | |
| 1447 | if (!vdev || !peer) |
| 1448 | return false; |
| 1449 | vdev_crypto_params = wlan_crypto_vdev_get_comp_params(vdev, |
| 1450 | &crypto_priv); |
| 1451 | if (crypto_priv == NULL) { |
| 1452 | qdf_print("%s[%d] crypto_priv NULL\n", __func__, __LINE__); |
| 1453 | return QDF_STATUS_E_INVAL; |
| 1454 | } |
| 1455 | |
| 1456 | peer_crypto_params = wlan_crypto_peer_get_comp_params(peer, |
| 1457 | &crypto_priv); |
| 1458 | if (crypto_priv == NULL) { |
| 1459 | qdf_print("%s[%d] crypto_priv NULL\n", __func__, __LINE__); |
| 1460 | return QDF_STATUS_E_INVAL; |
| 1461 | } |
| 1462 | if (((vdev_crypto_params->rsn_caps & |
| 1463 | WLAN_CRYPTO_RSN_CAP_MFP_ENABLED) && |
Ashok Ponnaiah | 2a3df50 | 2017-07-07 17:01:41 +0530 | [diff] [blame] | 1464 | (peer_crypto_params->rsn_caps & |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 1465 | WLAN_CRYPTO_RSN_CAP_MFP_ENABLED)) |
| 1466 | || (vdev_crypto_params->rsn_caps & |
| 1467 | WLAN_CRYPTO_RSN_CAP_MFP_REQUIRED)) { |
| 1468 | return true; |
| 1469 | } |
| 1470 | |
| 1471 | return false; |
| 1472 | } |
Ashok Ponnaiah | 7a41e8c | 2017-12-28 17:13:40 +0530 | [diff] [blame] | 1473 | |
| 1474 | static void wlan_crypto_gmac_pn_swap(uint8_t *a, uint8_t *b) |
| 1475 | { |
| 1476 | a[0] = b[5]; |
| 1477 | a[1] = b[4]; |
| 1478 | a[2] = b[3]; |
| 1479 | a[3] = b[2]; |
| 1480 | a[4] = b[1]; |
| 1481 | a[5] = b[0]; |
| 1482 | } |
| 1483 | |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 1484 | /** |
| 1485 | * wlan_crypto_add_mmie - called by mgmt txrx to add mmie in frame |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 1486 | * @vdev: vdev |
| 1487 | * @bfrm: frame starting pointer |
| 1488 | * @len: length of the frame |
| 1489 | * |
| 1490 | * This function gets called by mgmt txrx to add mmie in frame |
| 1491 | * |
| 1492 | * Return: end of frame or NULL in case failure |
| 1493 | */ |
| 1494 | uint8_t *wlan_crypto_add_mmie(struct wlan_objmgr_vdev *vdev, |
| 1495 | uint8_t *bfrm, |
| 1496 | uint32_t len) { |
| 1497 | struct wlan_crypto_key *key; |
Ashok Ponnaiah | 13e9f9b | 2017-03-14 04:45:29 +0530 | [diff] [blame] | 1498 | struct wlan_crypto_mmie *mmie; |
| 1499 | uint8_t *pn, *aad, *buf, *efrm, nounce[12]; |
| 1500 | struct ieee80211_hdr *hdr; |
| 1501 | uint32_t i, hdrlen, mic_len, aad_len; |
Ashok Ponnaiah | 2a3df50 | 2017-07-07 17:01:41 +0530 | [diff] [blame] | 1502 | uint8_t mic[16]; |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 1503 | struct wlan_crypto_comp_priv *crypto_priv; |
| 1504 | struct wlan_crypto_params *crypto_params; |
Disha Das | 55b86c2 | 2018-04-20 15:22:08 +0530 | [diff] [blame] | 1505 | int32_t ret = -1; |
Ashok Ponnaiah | 13e9f9b | 2017-03-14 04:45:29 +0530 | [diff] [blame] | 1506 | |
| 1507 | if (!bfrm) { |
| 1508 | qdf_print("%s[%d] frame is NULL\n", __func__, __LINE__); |
| 1509 | return NULL; |
| 1510 | } |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 1511 | |
| 1512 | crypto_params = wlan_crypto_vdev_get_comp_params(vdev, |
| 1513 | &crypto_priv); |
| 1514 | if (crypto_priv == NULL) { |
| 1515 | qdf_print("%s[%d] crypto_priv NULL\n", __func__, __LINE__); |
| 1516 | return NULL; |
| 1517 | } |
| 1518 | |
Disha Das | 76210cd | 2018-04-10 12:44:14 +0530 | [diff] [blame] | 1519 | if (crypto_priv->def_igtk_tx_keyid >= WLAN_CRYPTO_MAXIGTKKEYIDX) { |
Nandha Kishore Easwaran | b0ac369 | 2017-12-08 10:39:00 +0530 | [diff] [blame] | 1520 | qdf_print("%s[%d] igtk key invalid keyid %d \n", |
| 1521 | __func__, __LINE__, crypto_priv->def_igtk_tx_keyid); |
| 1522 | return NULL; |
| 1523 | } |
| 1524 | |
| 1525 | key = crypto_priv->igtk_key[crypto_priv->def_igtk_tx_keyid]; |
Ashok Ponnaiah | 13e9f9b | 2017-03-14 04:45:29 +0530 | [diff] [blame] | 1526 | if (!key) { |
| 1527 | qdf_print("%s[%d] No igtk key present\n", __func__, __LINE__); |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 1528 | return NULL; |
| 1529 | } |
Ashok Ponnaiah | 13e9f9b | 2017-03-14 04:45:29 +0530 | [diff] [blame] | 1530 | mic_len = (crypto_priv->igtk_key_type |
| 1531 | == WLAN_CRYPTO_CIPHER_AES_CMAC) ? 8 : 16; |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 1532 | |
| 1533 | efrm = bfrm + len; |
Ashok Ponnaiah | 13e9f9b | 2017-03-14 04:45:29 +0530 | [diff] [blame] | 1534 | aad_len = 20; |
| 1535 | hdrlen = sizeof(struct ieee80211_hdr); |
Ashok Ponnaiah | 2a3df50 | 2017-07-07 17:01:41 +0530 | [diff] [blame] | 1536 | len += sizeof(struct wlan_crypto_mmie); |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 1537 | |
Ashok Ponnaiah | 13e9f9b | 2017-03-14 04:45:29 +0530 | [diff] [blame] | 1538 | mmie = (struct wlan_crypto_mmie *) efrm; |
Ashok Ponnaiah | 2a3df50 | 2017-07-07 17:01:41 +0530 | [diff] [blame] | 1539 | qdf_mem_zero((unsigned char *)mmie, sizeof(*mmie)); |
Ashok Ponnaiah | 13e9f9b | 2017-03-14 04:45:29 +0530 | [diff] [blame] | 1540 | mmie->element_id = WLAN_ELEMID_MMIE; |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 1541 | mmie->length = sizeof(*mmie) - 2; |
| 1542 | mmie->key_id = qdf_cpu_to_le16(key->keyix); |
| 1543 | |
Ashok Ponnaiah | 2a3df50 | 2017-07-07 17:01:41 +0530 | [diff] [blame] | 1544 | mic_len = (crypto_priv->igtk_key_type |
| 1545 | == WLAN_CRYPTO_CIPHER_AES_CMAC) ? 8 : 16; |
| 1546 | if (mic_len == 8) { |
| 1547 | mmie->length -= 8; |
| 1548 | len -= 8; |
| 1549 | } |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 1550 | /* PN = PN + 1 */ |
| 1551 | pn = (uint8_t *)&key->keytsc; |
| 1552 | |
| 1553 | for (i = 0; i <= 5; i++) { |
| 1554 | pn[i]++; |
| 1555 | if (pn[i]) |
| 1556 | break; |
| 1557 | } |
| 1558 | |
| 1559 | /* Copy IPN */ |
| 1560 | qdf_mem_copy(mmie->sequence_number, pn, 6); |
| 1561 | |
Ashok Ponnaiah | 13e9f9b | 2017-03-14 04:45:29 +0530 | [diff] [blame] | 1562 | hdr = (struct ieee80211_hdr *) bfrm; |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 1563 | |
Ashok Ponnaiah | 2a3df50 | 2017-07-07 17:01:41 +0530 | [diff] [blame] | 1564 | buf = qdf_mem_malloc(len - hdrlen + 20); |
Ashok Ponnaiah | 13e9f9b | 2017-03-14 04:45:29 +0530 | [diff] [blame] | 1565 | if (!buf) { |
| 1566 | qdf_print("%s[%d] malloc failed\n", __func__, __LINE__); |
| 1567 | return NULL; |
| 1568 | } |
Ashok Ponnaiah | 2a3df50 | 2017-07-07 17:01:41 +0530 | [diff] [blame] | 1569 | qdf_mem_zero(buf, len - hdrlen + 20); |
Ashok Ponnaiah | 13e9f9b | 2017-03-14 04:45:29 +0530 | [diff] [blame] | 1570 | aad = buf; |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 1571 | /* generate BIP AAD: FC(masked) || A1 || A2 || A3 */ |
| 1572 | |
| 1573 | /* FC type/subtype */ |
Ashok Ponnaiah | 13e9f9b | 2017-03-14 04:45:29 +0530 | [diff] [blame] | 1574 | aad[0] = hdr->frame_control & 0xff; |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 1575 | /* Mask FC Retry, PwrMgt, MoreData flags to zero */ |
Ashok Ponnaiah | 13e9f9b | 2017-03-14 04:45:29 +0530 | [diff] [blame] | 1576 | aad[1] = (hdr->frame_control & ~(WLAN_FC_RETRY | WLAN_FC_PWRMGT |
| 1577 | | WLAN_FC_MOREDATA)) >> 8; |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 1578 | /* A1 || A2 || A3 */ |
Ashok Ponnaiah | 13e9f9b | 2017-03-14 04:45:29 +0530 | [diff] [blame] | 1579 | qdf_mem_copy(aad + 2, hdr->addr1, WLAN_ALEN); |
| 1580 | qdf_mem_copy(aad + 8, hdr->addr2, WLAN_ALEN); |
| 1581 | qdf_mem_copy(aad + 14, hdr->addr3, WLAN_ALEN); |
Ashok Ponnaiah | 2a3df50 | 2017-07-07 17:01:41 +0530 | [diff] [blame] | 1582 | qdf_mem_zero(mic, 16); |
| 1583 | |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 1584 | /* |
| 1585 | * MIC = AES-128-CMAC(IGTK, AAD || Management Frame Body || MMIE, 64) |
| 1586 | */ |
Ashok Ponnaiah | 2a3df50 | 2017-07-07 17:01:41 +0530 | [diff] [blame] | 1587 | |
| 1588 | qdf_mem_copy(buf + aad_len, bfrm + hdrlen, len - hdrlen); |
Ashok Ponnaiah | 13e9f9b | 2017-03-14 04:45:29 +0530 | [diff] [blame] | 1589 | if (crypto_priv->igtk_key_type == WLAN_CRYPTO_CIPHER_AES_CMAC) { |
Ashok Ponnaiah | 2a3df50 | 2017-07-07 17:01:41 +0530 | [diff] [blame] | 1590 | |
Ashok Ponnaiah | 13e9f9b | 2017-03-14 04:45:29 +0530 | [diff] [blame] | 1591 | ret = omac1_aes_128(key->keyval, buf, |
Ashok Ponnaiah | 2a3df50 | 2017-07-07 17:01:41 +0530 | [diff] [blame] | 1592 | len + aad_len - hdrlen, mic); |
| 1593 | qdf_mem_copy(mmie->mic, mic, 8); |
| 1594 | |
Ashok Ponnaiah | 13e9f9b | 2017-03-14 04:45:29 +0530 | [diff] [blame] | 1595 | } else if (crypto_priv->igtk_key_type |
| 1596 | == WLAN_CRYPTO_CIPHER_AES_CMAC_256) { |
Ashok Ponnaiah | 2a3df50 | 2017-07-07 17:01:41 +0530 | [diff] [blame] | 1597 | |
Ashok Ponnaiah | 13e9f9b | 2017-03-14 04:45:29 +0530 | [diff] [blame] | 1598 | ret = omac1_aes_256(key->keyval, buf, |
| 1599 | len + aad_len - hdrlen, mmie->mic); |
| 1600 | } else if ((crypto_priv->igtk_key_type == WLAN_CRYPTO_CIPHER_AES_GMAC) |
| 1601 | || (crypto_priv->igtk_key_type |
| 1602 | == WLAN_CRYPTO_CIPHER_AES_GMAC_256)) { |
Ashok Ponnaiah | 2a3df50 | 2017-07-07 17:01:41 +0530 | [diff] [blame] | 1603 | |
Ashok Ponnaiah | 13e9f9b | 2017-03-14 04:45:29 +0530 | [diff] [blame] | 1604 | qdf_mem_copy(nounce, hdr->addr2, WLAN_ALEN); |
Ashok Ponnaiah | 7a41e8c | 2017-12-28 17:13:40 +0530 | [diff] [blame] | 1605 | wlan_crypto_gmac_pn_swap(nounce + 6, pn); |
Ashok Ponnaiah | 13e9f9b | 2017-03-14 04:45:29 +0530 | [diff] [blame] | 1606 | ret = wlan_crypto_aes_gmac(key->keyval, key->keylen, nounce, |
| 1607 | sizeof(nounce), buf, |
| 1608 | len + aad_len - hdrlen, mmie->mic); |
| 1609 | } |
| 1610 | qdf_mem_free(buf); |
| 1611 | if (ret < 0) { |
| 1612 | qdf_print("%s[%d] add mmie failed\n", __func__, __LINE__); |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 1613 | return NULL; |
| 1614 | } |
| 1615 | |
| 1616 | return bfrm + len; |
| 1617 | } |
| 1618 | |
| 1619 | /** |
| 1620 | * wlan_crypto_is_mmie_valid - called by mgmt txrx to check mmie of the frame |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 1621 | * @vdev: vdev |
| 1622 | * @frm: frame starting pointer |
| 1623 | * @efrm: end of frame pointer |
| 1624 | * |
| 1625 | * This function gets called by mgmt txrx to check mmie of the frame |
| 1626 | * |
| 1627 | * Return: true or false |
| 1628 | */ |
| 1629 | bool wlan_crypto_is_mmie_valid(struct wlan_objmgr_vdev *vdev, |
| 1630 | uint8_t *frm, |
| 1631 | uint8_t *efrm){ |
Ashok Ponnaiah | 13e9f9b | 2017-03-14 04:45:29 +0530 | [diff] [blame] | 1632 | struct wlan_crypto_mmie *mmie = NULL; |
| 1633 | uint8_t *ipn, *aad, *buf, mic[16], nounce[12]; |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 1634 | struct wlan_crypto_key *key; |
Ashok Ponnaiah | 13e9f9b | 2017-03-14 04:45:29 +0530 | [diff] [blame] | 1635 | struct ieee80211_hdr *hdr; |
| 1636 | uint16_t mic_len, hdrlen, len; |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 1637 | struct wlan_crypto_comp_priv *crypto_priv; |
| 1638 | struct wlan_crypto_params *crypto_params; |
Ashok Ponnaiah | 13e9f9b | 2017-03-14 04:45:29 +0530 | [diff] [blame] | 1639 | uint8_t aad_len = 20; |
Disha Das | 55b86c2 | 2018-04-20 15:22:08 +0530 | [diff] [blame] | 1640 | int32_t ret = -1; |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 1641 | |
| 1642 | /* check if frame is illegal length */ |
Ashok Ponnaiah | 13e9f9b | 2017-03-14 04:45:29 +0530 | [diff] [blame] | 1643 | if (!frm || !efrm || (efrm < frm) |
| 1644 | || ((efrm - frm) < sizeof(struct ieee80211_hdr))) { |
| 1645 | qdf_print("%s[%d] Invalid params\n", __func__, __LINE__); |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 1646 | return false; |
Ashok Ponnaiah | 13e9f9b | 2017-03-14 04:45:29 +0530 | [diff] [blame] | 1647 | } |
| 1648 | len = efrm - frm; |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 1649 | crypto_priv = (struct wlan_crypto_comp_priv *) |
| 1650 | wlan_get_vdev_crypto_obj(vdev); |
| 1651 | if (crypto_priv == NULL) { |
| 1652 | qdf_print("%s[%d] crypto_priv NULL\n", __func__, __LINE__); |
| 1653 | return false; |
| 1654 | } |
| 1655 | |
| 1656 | crypto_params = &(crypto_priv->crypto_params); |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 1657 | |
Ashok Ponnaiah | 13e9f9b | 2017-03-14 04:45:29 +0530 | [diff] [blame] | 1658 | |
| 1659 | mic_len = (crypto_priv->igtk_key_type |
| 1660 | == WLAN_CRYPTO_CIPHER_AES_CMAC) ? 8 : 16; |
| 1661 | hdrlen = sizeof(struct ieee80211_hdr); |
| 1662 | |
| 1663 | if (mic_len == 8) |
| 1664 | mmie = (struct wlan_crypto_mmie *)(efrm - sizeof(*mmie) + 8); |
| 1665 | else |
| 1666 | mmie = (struct wlan_crypto_mmie *)(efrm - sizeof(*mmie)); |
| 1667 | |
| 1668 | |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 1669 | /* check Elem ID*/ |
Ashok Ponnaiah | 13e9f9b | 2017-03-14 04:45:29 +0530 | [diff] [blame] | 1670 | if ((mmie == NULL) || (mmie->element_id != WLAN_ELEMID_MMIE)) { |
| 1671 | qdf_print("%s[%d] IE is not MMIE\n", __func__, __LINE__); |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 1672 | return false; |
| 1673 | } |
| 1674 | |
Disha Das | 76210cd | 2018-04-10 12:44:14 +0530 | [diff] [blame] | 1675 | if (mmie->key_id >= (WLAN_CRYPTO_MAXKEYIDX + |
Disha Das | 55b86c2 | 2018-04-20 15:22:08 +0530 | [diff] [blame] | 1676 | WLAN_CRYPTO_MAXIGTKKEYIDX) || |
| 1677 | (mmie->key_id < WLAN_CRYPTO_MAXKEYIDX)) { |
Nandha Kishore Easwaran | b0ac369 | 2017-12-08 10:39:00 +0530 | [diff] [blame] | 1678 | qdf_print("%s[%d] keyid not valid\n", __func__, __LINE__); |
| 1679 | return false; |
| 1680 | } |
| 1681 | |
| 1682 | key = crypto_priv->igtk_key[mmie->key_id - WLAN_CRYPTO_MAXKEYIDX]; |
| 1683 | if (!key) { |
| 1684 | qdf_print("%s[%d] No igtk key present\n", __func__, __LINE__); |
| 1685 | return false; |
| 1686 | } |
| 1687 | |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 1688 | /* validate ipn */ |
| 1689 | ipn = mmie->sequence_number; |
| 1690 | if (qdf_mem_cmp(ipn, key->keyrsc, 6) <= 0) { |
Ashok Ponnaiah | 13e9f9b | 2017-03-14 04:45:29 +0530 | [diff] [blame] | 1691 | qdf_print("%s[%d] replay error\n", __func__, __LINE__); |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 1692 | return false; |
| 1693 | } |
| 1694 | |
Ashok Ponnaiah | 2a3df50 | 2017-07-07 17:01:41 +0530 | [diff] [blame] | 1695 | buf = qdf_mem_malloc(len - hdrlen + 20); |
Ashok Ponnaiah | 13e9f9b | 2017-03-14 04:45:29 +0530 | [diff] [blame] | 1696 | if (!buf) { |
| 1697 | qdf_print("%s[%d] malloc failed\n", __func__, __LINE__); |
| 1698 | return false; |
| 1699 | } |
| 1700 | aad = buf; |
| 1701 | |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 1702 | /* construct AAD */ |
Ashok Ponnaiah | 13e9f9b | 2017-03-14 04:45:29 +0530 | [diff] [blame] | 1703 | hdr = (struct ieee80211_hdr *)frm; |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 1704 | /* generate BIP AAD: FC(masked) || A1 || A2 || A3 */ |
| 1705 | |
| 1706 | /* FC type/subtype */ |
Ashok Ponnaiah | 13e9f9b | 2017-03-14 04:45:29 +0530 | [diff] [blame] | 1707 | aad[0] = hdr->frame_control & 0xff; |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 1708 | /* Mask FC Retry, PwrMgt, MoreData flags to zero */ |
Ashok Ponnaiah | 13e9f9b | 2017-03-14 04:45:29 +0530 | [diff] [blame] | 1709 | aad[1] = (hdr->frame_control & ~(WLAN_FC_RETRY | WLAN_FC_PWRMGT |
| 1710 | | WLAN_FC_MOREDATA)) >> 8; |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 1711 | /* A1 || A2 || A3 */ |
Ashok Ponnaiah | 13e9f9b | 2017-03-14 04:45:29 +0530 | [diff] [blame] | 1712 | qdf_mem_copy(aad + 2, hdr->addr1, 3 * WLAN_ALEN); |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 1713 | |
| 1714 | /* |
| 1715 | * MIC = AES-128-CMAC(IGTK, AAD || Management Frame Body || MMIE, 64) |
| 1716 | */ |
Ashok Ponnaiah | 13e9f9b | 2017-03-14 04:45:29 +0530 | [diff] [blame] | 1717 | qdf_mem_copy(buf + 20, frm + hdrlen, len - hdrlen); |
Ashok Ponnaiah | 2a3df50 | 2017-07-07 17:01:41 +0530 | [diff] [blame] | 1718 | qdf_mem_zero(buf + (len - hdrlen + 20 - mic_len), mic_len); |
| 1719 | qdf_mem_zero(mic, 16); |
Ashok Ponnaiah | 13e9f9b | 2017-03-14 04:45:29 +0530 | [diff] [blame] | 1720 | if (crypto_priv->igtk_key_type == WLAN_CRYPTO_CIPHER_AES_CMAC) { |
Ashok Ponnaiah | 13e9f9b | 2017-03-14 04:45:29 +0530 | [diff] [blame] | 1721 | ret = omac1_aes_128(key->keyval, buf, |
Ashok Ponnaiah | 2a3df50 | 2017-07-07 17:01:41 +0530 | [diff] [blame] | 1722 | len - hdrlen + aad_len, mic); |
Ashok Ponnaiah | 13e9f9b | 2017-03-14 04:45:29 +0530 | [diff] [blame] | 1723 | } else if (crypto_priv->igtk_key_type |
| 1724 | == WLAN_CRYPTO_CIPHER_AES_CMAC_256) { |
| 1725 | ret = omac1_aes_256(key->keyval, buf, |
| 1726 | len + aad_len - hdrlen, mic); |
| 1727 | } else if ((crypto_priv->igtk_key_type == WLAN_CRYPTO_CIPHER_AES_GMAC) |
| 1728 | || (crypto_priv->igtk_key_type |
| 1729 | == WLAN_CRYPTO_CIPHER_AES_GMAC_256)) { |
| 1730 | qdf_mem_copy(nounce, hdr->addr2, WLAN_ALEN); |
Ashok Ponnaiah | 7a41e8c | 2017-12-28 17:13:40 +0530 | [diff] [blame] | 1731 | wlan_crypto_gmac_pn_swap(nounce + 6, ipn); |
Ashok Ponnaiah | 13e9f9b | 2017-03-14 04:45:29 +0530 | [diff] [blame] | 1732 | ret = wlan_crypto_aes_gmac(key->keyval, key->keylen, nounce, |
| 1733 | sizeof(nounce), buf, |
| 1734 | len + aad_len - hdrlen, mic); |
| 1735 | } |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 1736 | |
Ashok Ponnaiah | 13e9f9b | 2017-03-14 04:45:29 +0530 | [diff] [blame] | 1737 | qdf_mem_free(buf); |
| 1738 | |
| 1739 | if (ret < 0) { |
| 1740 | qdf_print("%s[%d] genarate mmie failed\n", __func__, __LINE__); |
| 1741 | return false; |
| 1742 | } |
| 1743 | |
| 1744 | if (qdf_mem_cmp(mic, mmie->mic, mic_len) != 0) { |
| 1745 | qdf_print("%s[%d] mmie mismatch\n", __func__, __LINE__); |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 1746 | /* MMIE MIC mismatch */ |
| 1747 | return false; |
Ashok Ponnaiah | 13e9f9b | 2017-03-14 04:45:29 +0530 | [diff] [blame] | 1748 | } |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 1749 | |
| 1750 | /* Update the receive sequence number */ |
| 1751 | qdf_mem_copy(key->keyrsc, ipn, 6); |
Ashok Ponnaiah | 2a3df50 | 2017-07-07 17:01:41 +0530 | [diff] [blame] | 1752 | qdf_print("%s[%d] mmie matched\n", __func__, __LINE__); |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 1753 | |
| 1754 | return true; |
| 1755 | } |
| 1756 | |
| 1757 | |
| 1758 | static int32_t wlan_crypto_wpa_cipher_to_suite(uint32_t cipher) |
| 1759 | { |
| 1760 | int32_t status = -1; |
| 1761 | |
| 1762 | switch (cipher) { |
| 1763 | case WLAN_CRYPTO_CIPHER_TKIP: |
| 1764 | return WPA_CIPHER_SUITE_TKIP; |
| 1765 | case WLAN_CRYPTO_CIPHER_AES_CCM: |
| 1766 | return WPA_CIPHER_SUITE_CCMP; |
| 1767 | case WLAN_CRYPTO_CIPHER_NONE: |
| 1768 | return WPA_CIPHER_SUITE_NONE; |
| 1769 | } |
| 1770 | |
| 1771 | return status; |
| 1772 | } |
| 1773 | |
| 1774 | static int32_t wlan_crypto_rsn_cipher_to_suite(uint32_t cipher) |
| 1775 | { |
| 1776 | int32_t status = -1; |
| 1777 | |
| 1778 | switch (cipher) { |
| 1779 | case WLAN_CRYPTO_CIPHER_TKIP: |
| 1780 | return RSN_CIPHER_SUITE_TKIP; |
| 1781 | case WLAN_CRYPTO_CIPHER_AES_CCM: |
| 1782 | return RSN_CIPHER_SUITE_CCMP; |
| 1783 | case WLAN_CRYPTO_CIPHER_AES_CCM_256: |
| 1784 | return RSN_CIPHER_SUITE_CCMP_256; |
| 1785 | case WLAN_CRYPTO_CIPHER_AES_GCM: |
| 1786 | return RSN_CIPHER_SUITE_GCMP; |
| 1787 | case WLAN_CRYPTO_CIPHER_AES_GCM_256: |
| 1788 | return RSN_CIPHER_SUITE_GCMP_256; |
| 1789 | case WLAN_CRYPTO_CIPHER_AES_CMAC: |
| 1790 | return RSN_CIPHER_SUITE_AES_CMAC; |
| 1791 | case WLAN_CRYPTO_CIPHER_AES_CMAC_256: |
| 1792 | return RSN_CIPHER_SUITE_BIP_CMAC_256; |
| 1793 | case WLAN_CRYPTO_CIPHER_AES_GMAC: |
| 1794 | return RSN_CIPHER_SUITE_BIP_GMAC_128; |
| 1795 | case WLAN_CRYPTO_CIPHER_AES_GMAC_256: |
| 1796 | return RSN_CIPHER_SUITE_BIP_GMAC_256; |
| 1797 | case WLAN_CRYPTO_CIPHER_NONE: |
| 1798 | return RSN_CIPHER_SUITE_NONE; |
| 1799 | } |
| 1800 | |
| 1801 | return status; |
| 1802 | } |
| 1803 | |
| 1804 | /* |
| 1805 | * Convert an RSN key management/authentication algorithm |
| 1806 | * to an internal code. |
| 1807 | */ |
| 1808 | static int32_t |
| 1809 | wlan_crypto_rsn_keymgmt_to_suite(uint32_t keymgmt) |
| 1810 | { |
| 1811 | int32_t status = -1; |
| 1812 | |
| 1813 | switch (keymgmt) { |
| 1814 | case WLAN_CRYPTO_KEY_MGMT_NONE: |
| 1815 | return RSN_AUTH_KEY_MGMT_NONE; |
| 1816 | case WLAN_CRYPTO_KEY_MGMT_IEEE8021X: |
| 1817 | return RSN_AUTH_KEY_MGMT_UNSPEC_802_1X; |
| 1818 | case WLAN_CRYPTO_KEY_MGMT_PSK: |
| 1819 | return RSN_AUTH_KEY_MGMT_PSK_OVER_802_1X; |
| 1820 | case WLAN_CRYPTO_KEY_MGMT_FT_IEEE8021X: |
| 1821 | return RSN_AUTH_KEY_MGMT_FT_802_1X; |
| 1822 | case WLAN_CRYPTO_KEY_MGMT_FT_PSK: |
| 1823 | return RSN_AUTH_KEY_MGMT_FT_PSK; |
| 1824 | case WLAN_CRYPTO_KEY_MGMT_IEEE8021X_SHA256: |
| 1825 | return RSN_AUTH_KEY_MGMT_802_1X_SHA256; |
| 1826 | case WLAN_CRYPTO_KEY_MGMT_PSK_SHA256: |
| 1827 | return RSN_AUTH_KEY_MGMT_PSK_SHA256; |
| 1828 | case WLAN_CRYPTO_KEY_MGMT_SAE: |
| 1829 | return RSN_AUTH_KEY_MGMT_SAE; |
| 1830 | case WLAN_CRYPTO_KEY_MGMT_FT_SAE: |
| 1831 | return RSN_AUTH_KEY_MGMT_FT_SAE; |
| 1832 | case WLAN_CRYPTO_KEY_MGMT_IEEE8021X_SUITE_B: |
| 1833 | return RSN_AUTH_KEY_MGMT_802_1X_SUITE_B; |
| 1834 | case WLAN_CRYPTO_KEY_MGMT_IEEE8021X_SUITE_B_192: |
| 1835 | return RSN_AUTH_KEY_MGMT_802_1X_SUITE_B_192; |
| 1836 | case WLAN_CRYPTO_KEY_MGMT_CCKM: |
| 1837 | return RSN_AUTH_KEY_MGMT_CCKM; |
| 1838 | case WLAN_CRYPTO_KEY_MGMT_OSEN: |
| 1839 | return RSN_AUTH_KEY_MGMT_OSEN; |
| 1840 | } |
| 1841 | |
| 1842 | return status; |
| 1843 | } |
| 1844 | |
| 1845 | /* |
| 1846 | * Convert an RSN key management/authentication algorithm |
| 1847 | * to an internal code. |
| 1848 | */ |
| 1849 | static int32_t |
| 1850 | wlan_crypto_wpa_keymgmt_to_suite(uint32_t keymgmt) |
| 1851 | { |
| 1852 | int32_t status = -1; |
| 1853 | |
| 1854 | switch (keymgmt) { |
| 1855 | case WLAN_CRYPTO_KEY_MGMT_NONE: |
| 1856 | return WPA_AUTH_KEY_MGMT_NONE; |
| 1857 | case WLAN_CRYPTO_KEY_MGMT_IEEE8021X: |
| 1858 | return WPA_AUTH_KEY_MGMT_UNSPEC_802_1X; |
| 1859 | case WLAN_CRYPTO_KEY_MGMT_PSK: |
| 1860 | return WPA_AUTH_KEY_MGMT_PSK_OVER_802_1X; |
| 1861 | case WLAN_CRYPTO_KEY_MGMT_CCKM: |
| 1862 | return WPA_AUTH_KEY_MGMT_CCKM; |
| 1863 | } |
| 1864 | |
| 1865 | return status; |
| 1866 | } |
| 1867 | /** |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 1868 | * Convert a WPA cipher selector OUI to an internal |
| 1869 | * cipher algorithm. Where appropriate we also |
| 1870 | * record any key length. |
| 1871 | */ |
Ashok Ponnaiah | 439d7b5 | 2017-03-21 11:20:36 +0530 | [diff] [blame] | 1872 | static int32_t wlan_crypto_wpa_suite_to_cipher(uint8_t *sel) |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 1873 | { |
Rohan Dutta | 8b8f00f | 2017-12-13 11:04:14 +0530 | [diff] [blame] | 1874 | uint32_t w = LE_READ_4(sel); |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 1875 | int32_t status = -1; |
| 1876 | |
| 1877 | switch (w) { |
| 1878 | case WPA_CIPHER_SUITE_TKIP: |
| 1879 | return WLAN_CRYPTO_CIPHER_TKIP; |
| 1880 | case WPA_CIPHER_SUITE_CCMP: |
| 1881 | return WLAN_CRYPTO_CIPHER_AES_CCM; |
| 1882 | case WPA_CIPHER_SUITE_NONE: |
| 1883 | return WLAN_CRYPTO_CIPHER_NONE; |
| 1884 | } |
| 1885 | |
| 1886 | return status; |
| 1887 | } |
| 1888 | |
| 1889 | /* |
| 1890 | * Convert a WPA key management/authentication algorithm |
| 1891 | * to an internal code. |
| 1892 | */ |
| 1893 | static int32_t wlan_crypto_wpa_suite_to_keymgmt(uint8_t *sel) |
| 1894 | { |
Rohan Dutta | 8b8f00f | 2017-12-13 11:04:14 +0530 | [diff] [blame] | 1895 | uint32_t w = LE_READ_4(sel); |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 1896 | int32_t status = -1; |
| 1897 | |
| 1898 | switch (w) { |
| 1899 | case WPA_AUTH_KEY_MGMT_UNSPEC_802_1X: |
| 1900 | return WLAN_CRYPTO_KEY_MGMT_IEEE8021X; |
| 1901 | case WPA_AUTH_KEY_MGMT_PSK_OVER_802_1X: |
| 1902 | return WLAN_CRYPTO_KEY_MGMT_PSK; |
| 1903 | case WPA_AUTH_KEY_MGMT_CCKM: |
| 1904 | return WLAN_CRYPTO_KEY_MGMT_CCKM; |
| 1905 | case WPA_AUTH_KEY_MGMT_NONE: |
| 1906 | return WLAN_CRYPTO_KEY_MGMT_NONE; |
| 1907 | } |
| 1908 | return status; |
| 1909 | } |
| 1910 | |
| 1911 | /* |
| 1912 | * Convert a RSN cipher selector OUI to an internal |
| 1913 | * cipher algorithm. Where appropriate we also |
| 1914 | * record any key length. |
| 1915 | */ |
| 1916 | static int32_t wlan_crypto_rsn_suite_to_cipher(uint8_t *sel) |
| 1917 | { |
Rohan Dutta | 8b8f00f | 2017-12-13 11:04:14 +0530 | [diff] [blame] | 1918 | uint32_t w = LE_READ_4(sel); |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 1919 | int32_t status = -1; |
| 1920 | |
| 1921 | switch (w) { |
| 1922 | case RSN_CIPHER_SUITE_TKIP: |
| 1923 | return WLAN_CRYPTO_CIPHER_TKIP; |
| 1924 | case RSN_CIPHER_SUITE_CCMP: |
| 1925 | return WLAN_CRYPTO_CIPHER_AES_CCM; |
| 1926 | case RSN_CIPHER_SUITE_CCMP_256: |
| 1927 | return WLAN_CRYPTO_CIPHER_AES_CCM_256; |
| 1928 | case RSN_CIPHER_SUITE_GCMP: |
| 1929 | return WLAN_CRYPTO_CIPHER_AES_GCM; |
| 1930 | case RSN_CIPHER_SUITE_GCMP_256: |
| 1931 | return WLAN_CRYPTO_CIPHER_AES_GCM_256; |
| 1932 | case RSN_CIPHER_SUITE_AES_CMAC: |
| 1933 | return WLAN_CRYPTO_CIPHER_AES_CMAC; |
| 1934 | case RSN_CIPHER_SUITE_BIP_CMAC_256: |
| 1935 | return WLAN_CRYPTO_CIPHER_AES_CMAC_256; |
| 1936 | case RSN_CIPHER_SUITE_BIP_GMAC_128: |
| 1937 | return WLAN_CRYPTO_CIPHER_AES_GMAC; |
| 1938 | case RSN_CIPHER_SUITE_BIP_GMAC_256: |
| 1939 | return WLAN_CRYPTO_CIPHER_AES_GMAC_256; |
| 1940 | case RSN_CIPHER_SUITE_NONE: |
| 1941 | return WLAN_CRYPTO_CIPHER_NONE; |
| 1942 | } |
| 1943 | |
| 1944 | return status; |
| 1945 | } |
| 1946 | /* |
| 1947 | * Convert an RSN key management/authentication algorithm |
| 1948 | * to an internal code. |
| 1949 | */ |
| 1950 | static int32_t wlan_crypto_rsn_suite_to_keymgmt(uint8_t *sel) |
| 1951 | { |
Rohan Dutta | 8b8f00f | 2017-12-13 11:04:14 +0530 | [diff] [blame] | 1952 | uint32_t w = LE_READ_4(sel); |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 1953 | int32_t status = -1; |
| 1954 | |
| 1955 | switch (w) { |
| 1956 | case RSN_AUTH_KEY_MGMT_UNSPEC_802_1X: |
| 1957 | return WLAN_CRYPTO_KEY_MGMT_IEEE8021X; |
| 1958 | case RSN_AUTH_KEY_MGMT_PSK_OVER_802_1X: |
| 1959 | return WLAN_CRYPTO_KEY_MGMT_PSK; |
| 1960 | case RSN_AUTH_KEY_MGMT_FT_802_1X: |
| 1961 | return WLAN_CRYPTO_KEY_MGMT_FT_IEEE8021X; |
| 1962 | case RSN_AUTH_KEY_MGMT_FT_PSK: |
| 1963 | return WLAN_CRYPTO_KEY_MGMT_FT_PSK; |
| 1964 | case RSN_AUTH_KEY_MGMT_802_1X_SHA256: |
| 1965 | return WLAN_CRYPTO_KEY_MGMT_IEEE8021X_SHA256; |
| 1966 | case RSN_AUTH_KEY_MGMT_PSK_SHA256: |
| 1967 | return WLAN_CRYPTO_KEY_MGMT_PSK_SHA256; |
| 1968 | case RSN_AUTH_KEY_MGMT_SAE: |
| 1969 | return WLAN_CRYPTO_KEY_MGMT_SAE; |
| 1970 | case RSN_AUTH_KEY_MGMT_FT_SAE: |
| 1971 | return WLAN_CRYPTO_KEY_MGMT_FT_SAE; |
| 1972 | case RSN_AUTH_KEY_MGMT_802_1X_SUITE_B: |
| 1973 | return WLAN_CRYPTO_KEY_MGMT_IEEE8021X_SUITE_B; |
| 1974 | case RSN_AUTH_KEY_MGMT_802_1X_SUITE_B_192: |
| 1975 | return WLAN_CRYPTO_KEY_MGMT_IEEE8021X_SUITE_B_192; |
| 1976 | case RSN_AUTH_KEY_MGMT_CCKM: |
| 1977 | return WLAN_CRYPTO_KEY_MGMT_CCKM; |
| 1978 | case RSN_AUTH_KEY_MGMT_OSEN: |
| 1979 | return WLAN_CRYPTO_KEY_MGMT_OSEN; |
| 1980 | } |
| 1981 | |
| 1982 | return status; |
| 1983 | } |
| 1984 | |
| 1985 | /** |
| 1986 | * wlan_crypto_wpaie_check - called by mlme to check the wpaie |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 1987 | * @crypto params: crypto params |
| 1988 | * @iebuf: ie buffer |
| 1989 | * |
| 1990 | * This function gets called by mlme to check the contents of wpa is |
| 1991 | * matching with given crypto params |
| 1992 | * |
| 1993 | * Return: QDF_STATUS_SUCCESS - in case of success |
| 1994 | */ |
| 1995 | QDF_STATUS wlan_crypto_wpaie_check(struct wlan_crypto_params *crypto_params, |
| 1996 | uint8_t *frm){ |
| 1997 | uint8_t len = frm[1]; |
| 1998 | int32_t w; |
| 1999 | int n; |
Ashok Ponnaiah | 439d7b5 | 2017-03-21 11:20:36 +0530 | [diff] [blame] | 2000 | |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 2001 | /* |
| 2002 | * Check the length once for fixed parts: OUI, type, |
| 2003 | * version, mcast cipher, and 2 selector counts. |
| 2004 | * Other, variable-length data, must be checked separately. |
| 2005 | */ |
| 2006 | RESET_AUTHMODE(crypto_params); |
| 2007 | SET_AUTHMODE(crypto_params, WLAN_CRYPTO_AUTH_WPA); |
| 2008 | |
| 2009 | if (len < 14) |
| 2010 | return QDF_STATUS_E_INVAL; |
| 2011 | |
Ashok Ponnaiah | 439d7b5 | 2017-03-21 11:20:36 +0530 | [diff] [blame] | 2012 | frm += 6, len -= 4; |
| 2013 | |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 2014 | w = LE_READ_2(frm); |
| 2015 | if (w != WPA_VERSION) |
| 2016 | return QDF_STATUS_E_INVAL; |
| 2017 | |
| 2018 | frm += 2, len -= 2; |
| 2019 | |
| 2020 | /* multicast/group cipher */ |
| 2021 | RESET_MCAST_CIPHERS(crypto_params); |
Ashok Ponnaiah | 439d7b5 | 2017-03-21 11:20:36 +0530 | [diff] [blame] | 2022 | w = wlan_crypto_wpa_suite_to_cipher(frm); |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 2023 | if (w < 0) |
| 2024 | return QDF_STATUS_E_INVAL; |
| 2025 | SET_MCAST_CIPHER(crypto_params, w); |
| 2026 | frm += 4, len -= 4; |
| 2027 | |
| 2028 | /* unicast ciphers */ |
| 2029 | n = LE_READ_2(frm); |
| 2030 | frm += 2, len -= 2; |
| 2031 | if (len < n*4+2) |
| 2032 | return QDF_STATUS_E_INVAL; |
| 2033 | |
| 2034 | RESET_UCAST_CIPHERS(crypto_params); |
| 2035 | for (; n > 0; n--) { |
Ashok Ponnaiah | 439d7b5 | 2017-03-21 11:20:36 +0530 | [diff] [blame] | 2036 | w = wlan_crypto_wpa_suite_to_cipher(frm); |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 2037 | if (w < 0) |
| 2038 | return QDF_STATUS_E_INVAL; |
| 2039 | SET_UCAST_CIPHER(crypto_params, w); |
| 2040 | frm += 4, len -= 4; |
| 2041 | } |
| 2042 | |
| 2043 | if (!crypto_params->ucastcipherset) |
| 2044 | return QDF_STATUS_E_INVAL; |
| 2045 | |
| 2046 | /* key management algorithms */ |
| 2047 | n = LE_READ_2(frm); |
| 2048 | frm += 2, len -= 2; |
| 2049 | if (len < n*4) |
| 2050 | return QDF_STATUS_E_INVAL; |
| 2051 | |
| 2052 | w = 0; |
| 2053 | RESET_KEY_MGMT(crypto_params); |
| 2054 | for (; n > 0; n--) { |
| 2055 | w = wlan_crypto_wpa_suite_to_keymgmt(frm); |
| 2056 | if (w < 0) |
| 2057 | return QDF_STATUS_E_INVAL; |
| 2058 | SET_KEY_MGMT(crypto_params, w); |
| 2059 | frm += 4, len -= 4; |
| 2060 | } |
| 2061 | |
| 2062 | /* optional capabilities */ |
| 2063 | if (len >= 2) { |
| 2064 | crypto_params->rsn_caps = LE_READ_2(frm); |
| 2065 | frm += 2, len -= 2; |
| 2066 | } |
| 2067 | |
| 2068 | return 0; |
| 2069 | } |
| 2070 | |
| 2071 | /** |
| 2072 | * wlan_crypto_rsnie_check - called by mlme to check the rsnie |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 2073 | * @crypto params: crypto params |
| 2074 | * @iebuf: ie buffer |
| 2075 | * |
| 2076 | * This function gets called by mlme to check the contents of wpa is |
| 2077 | * matching with given crypto params |
| 2078 | * |
| 2079 | * Return: QDF_STATUS_SUCCESS - in case of success |
| 2080 | */ |
| 2081 | QDF_STATUS wlan_crypto_rsnie_check(struct wlan_crypto_params *crypto_params, |
| 2082 | uint8_t *frm){ |
| 2083 | uint8_t len = frm[1]; |
| 2084 | int32_t w; |
| 2085 | int n; |
Ashok Ponnaiah | 439d7b5 | 2017-03-21 11:20:36 +0530 | [diff] [blame] | 2086 | |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 2087 | /* |
| 2088 | * Check the length once for fixed parts: OUI, type, |
| 2089 | * version, mcast cipher, and 2 selector counts. |
| 2090 | * Other, variable-length data, must be checked separately. |
| 2091 | */ |
| 2092 | RESET_AUTHMODE(crypto_params); |
| 2093 | SET_AUTHMODE(crypto_params, WLAN_CRYPTO_AUTH_RSNA); |
| 2094 | |
| 2095 | if (len < 14) |
| 2096 | return QDF_STATUS_E_INVAL; |
| 2097 | |
Rohan Dutta | f8ce810 | 2018-01-18 10:17:47 +0530 | [diff] [blame] | 2098 | frm += 2; |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 2099 | /* NB: iswapoui already validated the OUI and type */ |
| 2100 | w = LE_READ_2(frm); |
| 2101 | if (w != RSN_VERSION) |
| 2102 | return QDF_STATUS_E_INVAL; |
| 2103 | |
| 2104 | frm += 2, len -= 2; |
| 2105 | |
| 2106 | /* multicast/group cipher */ |
| 2107 | RESET_MCAST_CIPHERS(crypto_params); |
| 2108 | w = wlan_crypto_rsn_suite_to_cipher(frm); |
| 2109 | if (w < 0) |
| 2110 | return QDF_STATUS_E_INVAL; |
| 2111 | SET_MCAST_CIPHER(crypto_params, w); |
| 2112 | frm += 4, len -= 4; |
| 2113 | |
| 2114 | /* unicast ciphers */ |
| 2115 | n = LE_READ_2(frm); |
| 2116 | frm += 2, len -= 2; |
| 2117 | if (len < n*4+2) |
| 2118 | return QDF_STATUS_E_INVAL; |
| 2119 | |
| 2120 | RESET_UCAST_CIPHERS(crypto_params); |
| 2121 | for (; n > 0; n--) { |
Ashok Ponnaiah | 439d7b5 | 2017-03-21 11:20:36 +0530 | [diff] [blame] | 2122 | w = wlan_crypto_rsn_suite_to_cipher(frm); |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 2123 | if (w < 0) |
| 2124 | return QDF_STATUS_E_INVAL; |
Ashok Ponnaiah | 439d7b5 | 2017-03-21 11:20:36 +0530 | [diff] [blame] | 2125 | SET_UCAST_CIPHER(crypto_params, w); |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 2126 | frm += 4, len -= 4; |
| 2127 | } |
| 2128 | |
| 2129 | if (crypto_params->ucastcipherset == 0) |
| 2130 | return QDF_STATUS_E_INVAL; |
| 2131 | |
| 2132 | /* key management algorithms */ |
| 2133 | n = LE_READ_2(frm); |
| 2134 | frm += 2, len -= 2; |
| 2135 | if (len < n*4) |
| 2136 | return QDF_STATUS_E_INVAL; |
| 2137 | w = 0; |
| 2138 | |
| 2139 | RESET_KEY_MGMT(crypto_params); |
| 2140 | for (; n > 0; n--) { |
| 2141 | w = wlan_crypto_rsn_suite_to_keymgmt(frm); |
| 2142 | if (w < 0) |
| 2143 | return QDF_STATUS_E_INVAL; |
Ashok Ponnaiah | 439d7b5 | 2017-03-21 11:20:36 +0530 | [diff] [blame] | 2144 | SET_KEY_MGMT(crypto_params, (1 << w)); |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 2145 | frm += 4, len -= 4; |
| 2146 | } |
| 2147 | |
| 2148 | /* optional capabilities */ |
| 2149 | if (len >= 2) { |
| 2150 | crypto_params->rsn_caps = LE_READ_2(frm); |
| 2151 | frm += 2, len -= 2; |
| 2152 | } |
| 2153 | |
| 2154 | return QDF_STATUS_SUCCESS; |
| 2155 | } |
| 2156 | |
| 2157 | /** |
| 2158 | * wlan_crypto_build_wpaie - called by mlme to build wpaie |
Rohan Dutta | 8b8f00f | 2017-12-13 11:04:14 +0530 | [diff] [blame] | 2159 | * @vdev: vdev |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 2160 | * @iebuf: ie buffer |
| 2161 | * |
Rohan Dutta | 8b8f00f | 2017-12-13 11:04:14 +0530 | [diff] [blame] | 2162 | * This function gets called by mlme to build wpaie from given vdev |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 2163 | * |
| 2164 | * Return: end of buffer |
| 2165 | */ |
Rohan Dutta | 8b8f00f | 2017-12-13 11:04:14 +0530 | [diff] [blame] | 2166 | uint8_t *wlan_crypto_build_wpaie(struct wlan_objmgr_vdev *vdev, |
| 2167 | uint8_t *iebuf){ |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 2168 | uint8_t *frm = iebuf; |
| 2169 | uint8_t *selcnt; |
Rohan Dutta | 8b8f00f | 2017-12-13 11:04:14 +0530 | [diff] [blame] | 2170 | struct wlan_crypto_comp_priv *crypto_priv; |
| 2171 | struct wlan_crypto_params *crypto_params; |
| 2172 | |
| 2173 | if (!frm) |
| 2174 | return NULL; |
| 2175 | |
| 2176 | crypto_params = wlan_crypto_vdev_get_comp_params(vdev, &crypto_priv); |
| 2177 | |
| 2178 | if (!crypto_params) |
| 2179 | return NULL; |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 2180 | |
Ashok Ponnaiah | 13e9f9b | 2017-03-14 04:45:29 +0530 | [diff] [blame] | 2181 | *frm++ = WLAN_ELEMID_VENDOR; |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 2182 | *frm++ = 0; |
| 2183 | WLAN_CRYPTO_ADDSELECTOR(frm, WPA_TYPE_OUI); |
| 2184 | WLAN_CRYPTO_ADDSHORT(frm, WPA_VERSION); |
| 2185 | |
| 2186 | |
| 2187 | /* multicast cipher */ |
Rohan Dutta | 8b8f00f | 2017-12-13 11:04:14 +0530 | [diff] [blame] | 2188 | if (MCIPHER_IS_TKIP(crypto_params)) { |
| 2189 | WLAN_CRYPTO_ADDSELECTOR(frm, |
| 2190 | wlan_crypto_wpa_cipher_to_suite( |
| 2191 | WLAN_CRYPTO_CIPHER_TKIP)); |
| 2192 | } else if (MCIPHER_IS_CCMP128(crypto_params)) { |
| 2193 | WLAN_CRYPTO_ADDSELECTOR(frm, |
| 2194 | wlan_crypto_wpa_cipher_to_suite( |
| 2195 | WLAN_CRYPTO_CIPHER_AES_CCM)); |
| 2196 | } |
Rohan Dutta | a301c83 | 2017-11-30 20:29:26 +0530 | [diff] [blame] | 2197 | /* unicast cipher list */ |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 2198 | selcnt = frm; |
| 2199 | WLAN_CRYPTO_ADDSHORT(frm, 0); |
| 2200 | /* do not use CCMP unicast cipher in WPA mode */ |
| 2201 | if (UCIPHER_IS_TKIP(crypto_params)) { |
| 2202 | selcnt[0]++; |
| 2203 | WLAN_CRYPTO_ADDSELECTOR(frm, |
| 2204 | wlan_crypto_wpa_cipher_to_suite( |
| 2205 | WLAN_CRYPTO_CIPHER_TKIP)); |
| 2206 | } |
| 2207 | if (UCIPHER_IS_CCMP128(crypto_params)) { |
| 2208 | selcnt[0]++; |
| 2209 | WLAN_CRYPTO_ADDSELECTOR(frm, |
| 2210 | wlan_crypto_wpa_cipher_to_suite( |
| 2211 | WLAN_CRYPTO_CIPHER_AES_CCM)); |
| 2212 | } |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 2213 | |
| 2214 | /* authenticator selector list */ |
| 2215 | selcnt = frm; |
| 2216 | WLAN_CRYPTO_ADDSHORT(frm, 0); |
| 2217 | |
| 2218 | if (HAS_KEY_MGMT(crypto_params, WLAN_CRYPTO_KEY_MGMT_IEEE8021X)) { |
| 2219 | selcnt[0]++; |
| 2220 | WLAN_CRYPTO_ADDSELECTOR(frm, |
| 2221 | wlan_crypto_wpa_keymgmt_to_suite( |
| 2222 | WLAN_CRYPTO_KEY_MGMT_IEEE8021X)); |
| 2223 | } else if (HAS_KEY_MGMT(crypto_params, WLAN_CRYPTO_KEY_MGMT_PSK)) { |
| 2224 | selcnt[0]++; |
| 2225 | WLAN_CRYPTO_ADDSELECTOR(frm, |
| 2226 | wlan_crypto_wpa_keymgmt_to_suite( |
| 2227 | WLAN_CRYPTO_KEY_MGMT_PSK)); |
| 2228 | } else if (HAS_KEY_MGMT(crypto_params, WLAN_CRYPTO_KEY_MGMT_CCKM)) { |
| 2229 | selcnt[0]++; |
| 2230 | WLAN_CRYPTO_ADDSELECTOR(frm, |
| 2231 | wlan_crypto_wpa_keymgmt_to_suite( |
| 2232 | WLAN_CRYPTO_KEY_MGMT_CCKM)); |
| 2233 | } else { |
| 2234 | selcnt[0]++; |
| 2235 | WLAN_CRYPTO_ADDSELECTOR(frm, |
| 2236 | wlan_crypto_wpa_keymgmt_to_suite( |
| 2237 | WLAN_CRYPTO_KEY_MGMT_NONE)); |
| 2238 | } |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 2239 | /* calculate element length */ |
| 2240 | iebuf[1] = frm - iebuf - 2; |
| 2241 | |
| 2242 | return frm; |
| 2243 | } |
| 2244 | |
| 2245 | /** |
| 2246 | * wlan_crypto_build_rsnie - called by mlme to build rsnie |
Rohan Dutta | 8b8f00f | 2017-12-13 11:04:14 +0530 | [diff] [blame] | 2247 | * @vdev: vdev |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 2248 | * @iebuf: ie buffer |
| 2249 | * |
Rohan Dutta | 8b8f00f | 2017-12-13 11:04:14 +0530 | [diff] [blame] | 2250 | * This function gets called by mlme to build rsnie from given vdev |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 2251 | * |
| 2252 | * Return: end of buffer |
| 2253 | */ |
Rohan Dutta | 8b8f00f | 2017-12-13 11:04:14 +0530 | [diff] [blame] | 2254 | uint8_t *wlan_crypto_build_rsnie(struct wlan_objmgr_vdev *vdev, |
| 2255 | uint8_t *iebuf){ |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 2256 | uint8_t *frm = iebuf; |
| 2257 | uint8_t *selcnt; |
Rohan Dutta | 8b8f00f | 2017-12-13 11:04:14 +0530 | [diff] [blame] | 2258 | struct wlan_crypto_comp_priv *crypto_priv; |
| 2259 | struct wlan_crypto_params *crypto_params; |
| 2260 | |
| 2261 | if (!frm) { |
| 2262 | return NULL; |
| 2263 | } |
| 2264 | |
| 2265 | crypto_params = wlan_crypto_vdev_get_comp_params(vdev, &crypto_priv); |
| 2266 | |
| 2267 | if (!crypto_params) { |
| 2268 | return NULL; |
| 2269 | } |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 2270 | |
Ashok Ponnaiah | 13e9f9b | 2017-03-14 04:45:29 +0530 | [diff] [blame] | 2271 | *frm++ = WLAN_ELEMID_RSN; |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 2272 | *frm++ = 0; |
| 2273 | WLAN_CRYPTO_ADDSHORT(frm, RSN_VERSION); |
| 2274 | |
| 2275 | |
| 2276 | /* multicast cipher */ |
Rohan Dutta | 8b8f00f | 2017-12-13 11:04:14 +0530 | [diff] [blame] | 2277 | if (MCIPHER_IS_TKIP(crypto_params)) { |
| 2278 | WLAN_CRYPTO_ADDSELECTOR(frm, |
| 2279 | wlan_crypto_rsn_cipher_to_suite( |
| 2280 | WLAN_CRYPTO_CIPHER_TKIP)); |
| 2281 | } else if (MCIPHER_IS_CCMP128(crypto_params)) { |
| 2282 | WLAN_CRYPTO_ADDSELECTOR(frm, |
| 2283 | wlan_crypto_rsn_cipher_to_suite( |
| 2284 | WLAN_CRYPTO_CIPHER_AES_CCM)); |
| 2285 | } else if (MCIPHER_IS_CCMP256(crypto_params)) { |
| 2286 | WLAN_CRYPTO_ADDSELECTOR(frm, |
| 2287 | wlan_crypto_rsn_cipher_to_suite( |
| 2288 | WLAN_CRYPTO_CIPHER_AES_CCM_256)); |
| 2289 | } else if (MCIPHER_IS_GCMP128(crypto_params)) { |
| 2290 | WLAN_CRYPTO_ADDSELECTOR(frm, |
| 2291 | wlan_crypto_rsn_cipher_to_suite( |
| 2292 | WLAN_CRYPTO_CIPHER_AES_GCM)); |
| 2293 | } else if (MCIPHER_IS_GCMP256(crypto_params)) { |
| 2294 | WLAN_CRYPTO_ADDSELECTOR(frm, |
| 2295 | wlan_crypto_rsn_cipher_to_suite( |
| 2296 | WLAN_CRYPTO_CIPHER_AES_GCM_256)); |
| 2297 | } |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 2298 | |
| 2299 | /* unicast cipher list */ |
| 2300 | selcnt = frm; |
| 2301 | WLAN_CRYPTO_ADDSHORT(frm, 0); |
| 2302 | /* do not use CCMP unicast cipher in WPA mode */ |
| 2303 | if (UCIPHER_IS_TKIP(crypto_params)) { |
| 2304 | selcnt[0]++; |
| 2305 | WLAN_CRYPTO_ADDSELECTOR(frm, |
Rohan Dutta | 8b8f00f | 2017-12-13 11:04:14 +0530 | [diff] [blame] | 2306 | wlan_crypto_rsn_cipher_to_suite( |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 2307 | WLAN_CRYPTO_CIPHER_TKIP)); |
| 2308 | } |
| 2309 | if (UCIPHER_IS_CCMP128(crypto_params)) { |
| 2310 | selcnt[0]++; |
| 2311 | WLAN_CRYPTO_ADDSELECTOR(frm, |
Rohan Dutta | 8b8f00f | 2017-12-13 11:04:14 +0530 | [diff] [blame] | 2312 | wlan_crypto_rsn_cipher_to_suite( |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 2313 | WLAN_CRYPTO_CIPHER_AES_CCM)); |
| 2314 | } |
| 2315 | if (UCIPHER_IS_CCMP256(crypto_params)) { |
| 2316 | selcnt[0]++; |
| 2317 | WLAN_CRYPTO_ADDSELECTOR(frm, |
| 2318 | wlan_crypto_rsn_cipher_to_suite( |
| 2319 | WLAN_CRYPTO_CIPHER_AES_CCM_256)); |
| 2320 | } |
| 2321 | |
| 2322 | if (UCIPHER_IS_GCMP128(crypto_params)) { |
| 2323 | selcnt[0]++; |
| 2324 | WLAN_CRYPTO_ADDSELECTOR(frm, |
| 2325 | wlan_crypto_rsn_cipher_to_suite( |
| 2326 | WLAN_CRYPTO_CIPHER_AES_GCM)); |
| 2327 | } |
| 2328 | if (UCIPHER_IS_GCMP256(crypto_params)) { |
| 2329 | selcnt[0]++; |
| 2330 | WLAN_CRYPTO_ADDSELECTOR(frm, |
| 2331 | wlan_crypto_rsn_cipher_to_suite( |
| 2332 | WLAN_CRYPTO_CIPHER_AES_GCM_256)); |
| 2333 | } |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 2334 | |
| 2335 | |
| 2336 | /* authenticator selector list */ |
| 2337 | selcnt = frm; |
| 2338 | WLAN_CRYPTO_ADDSHORT(frm, 0); |
| 2339 | if (HAS_KEY_MGMT(crypto_params, WLAN_CRYPTO_KEY_MGMT_CCKM)) { |
| 2340 | selcnt[0]++; |
| 2341 | WLAN_CRYPTO_ADDSELECTOR(frm, |
| 2342 | wlan_crypto_rsn_keymgmt_to_suite( |
| 2343 | WLAN_CRYPTO_KEY_MGMT_CCKM)); |
| 2344 | } else { |
| 2345 | if (HAS_KEY_MGMT(crypto_params, WLAN_CRYPTO_KEY_MGMT_PSK)) { |
| 2346 | selcnt[0]++; |
| 2347 | WLAN_CRYPTO_ADDSELECTOR(frm, |
| 2348 | wlan_crypto_rsn_keymgmt_to_suite( |
| 2349 | WLAN_CRYPTO_KEY_MGMT_PSK)); |
| 2350 | } |
| 2351 | if (HAS_KEY_MGMT(crypto_params, |
| 2352 | WLAN_CRYPTO_KEY_MGMT_IEEE8021X)) { |
| 2353 | selcnt[0]++; |
| 2354 | WLAN_CRYPTO_ADDSELECTOR(frm, |
| 2355 | wlan_crypto_rsn_keymgmt_to_suite( |
| 2356 | WLAN_CRYPTO_KEY_MGMT_IEEE8021X)); |
| 2357 | } |
| 2358 | if (HAS_KEY_MGMT(crypto_params, |
| 2359 | WLAN_CRYPTO_KEY_MGMT_FT_IEEE8021X)) { |
| 2360 | selcnt[0]++; |
| 2361 | WLAN_CRYPTO_ADDSELECTOR(frm, |
| 2362 | wlan_crypto_rsn_keymgmt_to_suite( |
| 2363 | WLAN_CRYPTO_KEY_MGMT_FT_IEEE8021X)); |
| 2364 | } |
| 2365 | if (HAS_KEY_MGMT(crypto_params, WLAN_CRYPTO_KEY_MGMT_FT_PSK)) { |
| 2366 | selcnt[0]++; |
| 2367 | WLAN_CRYPTO_ADDSELECTOR(frm, |
| 2368 | wlan_crypto_rsn_keymgmt_to_suite( |
| 2369 | WLAN_CRYPTO_KEY_MGMT_FT_PSK)); |
| 2370 | } |
| 2371 | if (HAS_KEY_MGMT(crypto_params, |
| 2372 | WLAN_CRYPTO_KEY_MGMT_IEEE8021X_SHA256)) { |
| 2373 | selcnt[0]++; |
| 2374 | WLAN_CRYPTO_ADDSELECTOR(frm, |
| 2375 | wlan_crypto_rsn_keymgmt_to_suite( |
| 2376 | WLAN_CRYPTO_KEY_MGMT_IEEE8021X_SHA256)); |
| 2377 | } |
| 2378 | if (HAS_KEY_MGMT(crypto_params, |
| 2379 | WLAN_CRYPTO_KEY_MGMT_PSK_SHA256)) { |
| 2380 | selcnt[0]++; |
| 2381 | WLAN_CRYPTO_ADDSELECTOR(frm, |
| 2382 | wlan_crypto_rsn_keymgmt_to_suite( |
| 2383 | WLAN_CRYPTO_KEY_MGMT_PSK_SHA256)); |
| 2384 | } |
| 2385 | if (HAS_KEY_MGMT(crypto_params, WLAN_CRYPTO_KEY_MGMT_OSEN)) { |
| 2386 | selcnt[0]++; |
| 2387 | WLAN_CRYPTO_ADDSELECTOR(frm, |
| 2388 | wlan_crypto_rsn_keymgmt_to_suite( |
| 2389 | WLAN_CRYPTO_KEY_MGMT_OSEN)); |
| 2390 | } |
| 2391 | } |
| 2392 | |
Rohan Dutta | 8b8f00f | 2017-12-13 11:04:14 +0530 | [diff] [blame] | 2393 | WLAN_CRYPTO_ADDSHORT(frm, crypto_params->rsn_caps); |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 2394 | /* optional capabilities */ |
| 2395 | if (crypto_params->rsn_caps != 0 && |
| 2396 | crypto_params->rsn_caps != WLAN_CRYPTO_RSN_CAP_PREAUTH){ |
| 2397 | |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 2398 | if (HAS_MGMT_CIPHER(crypto_params, |
| 2399 | WLAN_CRYPTO_CIPHER_AES_CMAC)) { |
| 2400 | selcnt[0]++; |
| 2401 | WLAN_CRYPTO_ADDSELECTOR(frm, |
| 2402 | wlan_crypto_rsn_cipher_to_suite( |
| 2403 | WLAN_CRYPTO_CIPHER_AES_CMAC)); |
| 2404 | } |
| 2405 | if (HAS_MGMT_CIPHER(crypto_params, |
| 2406 | WLAN_CRYPTO_CIPHER_AES_GMAC)) { |
| 2407 | selcnt[0]++; |
| 2408 | WLAN_CRYPTO_ADDSELECTOR(frm, |
| 2409 | wlan_crypto_rsn_cipher_to_suite( |
| 2410 | WLAN_CRYPTO_CIPHER_AES_GMAC)); |
| 2411 | } |
| 2412 | if (HAS_MGMT_CIPHER(crypto_params, |
| 2413 | WLAN_CRYPTO_CIPHER_AES_CMAC_256)) { |
| 2414 | selcnt[0]++; |
| 2415 | WLAN_CRYPTO_ADDSELECTOR(frm, |
| 2416 | wlan_crypto_rsn_cipher_to_suite( |
| 2417 | WLAN_CRYPTO_CIPHER_AES_CMAC_256)); |
| 2418 | } |
| 2419 | |
| 2420 | if (HAS_MGMT_CIPHER(crypto_params, |
| 2421 | WLAN_CRYPTO_CIPHER_AES_GMAC_256)) { |
| 2422 | selcnt[0]++; |
| 2423 | WLAN_CRYPTO_ADDSELECTOR(frm, |
| 2424 | wlan_crypto_rsn_cipher_to_suite( |
| 2425 | WLAN_CRYPTO_CIPHER_AES_GMAC_256)); |
| 2426 | } |
| 2427 | } |
Rohan Dutta | 8b8f00f | 2017-12-13 11:04:14 +0530 | [diff] [blame] | 2428 | |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 2429 | /* calculate element length */ |
| 2430 | iebuf[1] = frm - iebuf - 2; |
| 2431 | |
| 2432 | return frm; |
| 2433 | } |
Ashok Ponnaiah | 2a3df50 | 2017-07-07 17:01:41 +0530 | [diff] [blame] | 2434 | |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 2435 | bool wlan_crypto_rsn_info(struct wlan_objmgr_vdev *vdev, |
| 2436 | struct wlan_crypto_params *crypto_params){ |
| 2437 | struct wlan_crypto_params *my_crypto_params; |
| 2438 | my_crypto_params = wlan_crypto_vdev_get_crypto_params(vdev); |
| 2439 | |
Disha Das | 76210cd | 2018-04-10 12:44:14 +0530 | [diff] [blame] | 2440 | if (!my_crypto_params) |
| 2441 | return false; |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 2442 | /* |
| 2443 | * Check peer's pairwise ciphers. |
| 2444 | * At least one must match with our unicast cipher |
| 2445 | */ |
| 2446 | if (!UCAST_CIPHER_MATCH(crypto_params, my_crypto_params)) |
| 2447 | return false; |
| 2448 | /* |
| 2449 | * Check peer's group cipher is our enabled multicast cipher. |
| 2450 | */ |
| 2451 | if (!MCAST_CIPHER_MATCH(crypto_params, my_crypto_params)) |
| 2452 | return false; |
| 2453 | /* |
| 2454 | * Check peer's key management class set (PSK or UNSPEC) |
| 2455 | */ |
| 2456 | if (!KEY_MGMTSET_MATCH(crypto_params, my_crypto_params)) |
| 2457 | return false; |
| 2458 | |
| 2459 | return true; |
| 2460 | } |
| 2461 | |
Ashok Ponnaiah | 26e6be4 | 2017-07-14 18:13:23 +0530 | [diff] [blame] | 2462 | /* |
| 2463 | * Convert an WAPI CIPHER suite to to an internal code. |
| 2464 | */ |
| 2465 | static int32_t wlan_crypto_wapi_suite_to_cipher(uint8_t *sel) |
| 2466 | { |
| 2467 | uint32_t w = LE_READ_4(sel); |
| 2468 | int32_t status = -1; |
| 2469 | |
| 2470 | switch (w) { |
| 2471 | case (WLAN_WAPI_SEL(WLAN_CRYPTO_WAPI_SMS4_CIPHER)): |
| 2472 | return WLAN_CRYPTO_CIPHER_WAPI_SMS4; |
| 2473 | } |
| 2474 | |
| 2475 | return status; |
| 2476 | } |
| 2477 | |
| 2478 | /* |
| 2479 | * Convert an WAPI key management/authentication algorithm |
| 2480 | * to an internal code. |
| 2481 | */ |
| 2482 | static int32_t wlan_crypto_wapi_keymgmt(u_int8_t *sel) |
| 2483 | { |
| 2484 | uint32_t w = LE_READ_4(sel); |
| 2485 | int32_t status = -1; |
| 2486 | |
| 2487 | switch (w) { |
| 2488 | case (WLAN_WAPI_SEL(WLAN_WAI_PSK)): |
| 2489 | return WLAN_CRYPTO_KEY_MGMT_WAPI_PSK; |
| 2490 | case (WLAN_WAPI_SEL(WLAN_WAI_CERT_OR_SMS4)): |
| 2491 | return WLAN_CRYPTO_KEY_MGMT_WAPI_CERT; |
| 2492 | } |
| 2493 | |
| 2494 | return status; |
| 2495 | } |
| 2496 | /** |
| 2497 | * wlan_crypto_wapiie_check - called by mlme to check the wapiie |
Ashok Ponnaiah | 26e6be4 | 2017-07-14 18:13:23 +0530 | [diff] [blame] | 2498 | * @crypto params: crypto params |
| 2499 | * @iebuf: ie buffer |
| 2500 | * |
| 2501 | * This function gets called by mlme to check the contents of wapi is |
| 2502 | * matching with given crypto params |
| 2503 | * |
| 2504 | * Return: QDF_STATUS_SUCCESS - in case of success |
| 2505 | */ |
| 2506 | QDF_STATUS wlan_crypto_wapiie_check(struct wlan_crypto_params *crypto_params, |
| 2507 | uint8_t *frm) |
| 2508 | { |
| 2509 | uint8_t len = frm[1]; |
| 2510 | int32_t w; |
| 2511 | int n; |
| 2512 | |
| 2513 | /* |
| 2514 | * Check the length once for fixed parts: OUI, type, |
| 2515 | * version, mcast cipher, and 2 selector counts. |
| 2516 | * Other, variable-length data, must be checked separately. |
| 2517 | */ |
| 2518 | RESET_AUTHMODE(crypto_params); |
| 2519 | SET_AUTHMODE(crypto_params, WLAN_CRYPTO_AUTH_WAPI); |
| 2520 | |
| 2521 | if (len < WLAN_CRYPTO_WAPI_IE_LEN) |
| 2522 | return QDF_STATUS_E_INVAL; |
| 2523 | |
| 2524 | |
| 2525 | frm += 2; |
| 2526 | |
| 2527 | w = LE_READ_2(frm); |
| 2528 | frm += 2, len -= 2; |
| 2529 | if (w != WAPI_VERSION) |
| 2530 | return QDF_STATUS_E_INVAL; |
| 2531 | |
| 2532 | n = LE_READ_2(frm); |
| 2533 | frm += 2, len -= 2; |
| 2534 | if (len < n*4+2) |
| 2535 | return QDF_STATUS_E_INVAL; |
| 2536 | |
| 2537 | RESET_KEY_MGMT(crypto_params); |
| 2538 | for (; n > 0; n--) { |
| 2539 | w = wlan_crypto_wapi_keymgmt(frm); |
| 2540 | if (w < 0) |
| 2541 | return QDF_STATUS_E_INVAL; |
| 2542 | |
| 2543 | SET_KEY_MGMT(crypto_params, w); |
| 2544 | frm += 4, len -= 4; |
| 2545 | } |
| 2546 | |
| 2547 | /* unicast ciphers */ |
| 2548 | n = LE_READ_2(frm); |
| 2549 | frm += 2, len -= 2; |
| 2550 | if (len < n*4+2) |
| 2551 | return QDF_STATUS_E_INVAL; |
| 2552 | |
| 2553 | RESET_UCAST_CIPHERS(crypto_params); |
| 2554 | for (; n > 0; n--) { |
| 2555 | w = wlan_crypto_wapi_suite_to_cipher(frm); |
| 2556 | if (w < 0) |
| 2557 | return QDF_STATUS_E_INVAL; |
| 2558 | SET_UCAST_CIPHER(crypto_params, w); |
| 2559 | frm += 4, len -= 4; |
| 2560 | } |
| 2561 | |
| 2562 | if (!crypto_params->ucastcipherset) |
| 2563 | return QDF_STATUS_E_INVAL; |
| 2564 | |
| 2565 | /* multicast/group cipher */ |
| 2566 | RESET_MCAST_CIPHERS(crypto_params); |
| 2567 | w = wlan_crypto_wapi_suite_to_cipher(frm); |
| 2568 | |
| 2569 | if (w < 0) |
| 2570 | return QDF_STATUS_E_INVAL; |
| 2571 | |
| 2572 | SET_MCAST_CIPHER(crypto_params, w); |
| 2573 | frm += 4, len -= 4; |
| 2574 | |
| 2575 | return QDF_STATUS_SUCCESS; |
| 2576 | } |
| 2577 | |
| 2578 | /** |
| 2579 | * wlan_crypto_build_wapiie - called by mlme to build wapi ie |
Ashok Ponnaiah | 26e6be4 | 2017-07-14 18:13:23 +0530 | [diff] [blame] | 2580 | * @vdev: vdev |
| 2581 | * @iebuf: ie buffer |
| 2582 | * |
| 2583 | * This function gets called by mlme to build wapi ie from given vdev |
| 2584 | * |
| 2585 | * Return: end of buffer |
| 2586 | */ |
| 2587 | uint8_t *wlan_crypto_build_wapiie(struct wlan_objmgr_vdev *vdev, |
| 2588 | uint8_t *iebuf) |
| 2589 | { |
| 2590 | uint8_t *frm; |
| 2591 | uint8_t *selcnt; |
| 2592 | struct wlan_crypto_comp_priv *crypto_priv; |
| 2593 | struct wlan_crypto_params *crypto_params; |
| 2594 | |
| 2595 | frm = iebuf; |
| 2596 | if (!frm) { |
| 2597 | qdf_print("%s[%d] ie buffer NULL\n", __func__, __LINE__); |
| 2598 | return NULL; |
| 2599 | } |
| 2600 | |
| 2601 | crypto_params = wlan_crypto_vdev_get_comp_params(vdev, &crypto_priv); |
| 2602 | |
| 2603 | if (!crypto_params) { |
| 2604 | qdf_print("%s[%d] crypto_params NULL\n", __func__, __LINE__); |
| 2605 | return NULL; |
| 2606 | } |
| 2607 | |
| 2608 | *frm++ = WLAN_ELEMID_WAPI; |
| 2609 | *frm++ = 0; |
| 2610 | |
| 2611 | WLAN_CRYPTO_ADDSHORT(frm, WAPI_VERSION); |
| 2612 | |
| 2613 | /* authenticator selector list */ |
| 2614 | selcnt = frm; |
| 2615 | WLAN_CRYPTO_ADDSHORT(frm, 0); |
| 2616 | |
| 2617 | if (HAS_KEY_MGMT(crypto_params, WLAN_CRYPTO_KEY_MGMT_WAPI_PSK)) { |
| 2618 | selcnt[0]++; |
| 2619 | WLAN_CRYPTO_ADDSELECTOR(frm, |
| 2620 | WLAN_WAPI_SEL(WLAN_WAI_PSK)); |
| 2621 | } |
| 2622 | |
| 2623 | if (HAS_KEY_MGMT(crypto_params, WLAN_CRYPTO_KEY_MGMT_WAPI_CERT)) { |
| 2624 | selcnt[0]++; |
| 2625 | WLAN_CRYPTO_ADDSELECTOR(frm, |
| 2626 | WLAN_WAPI_SEL(WLAN_WAI_CERT_OR_SMS4)); |
| 2627 | } |
| 2628 | |
| 2629 | /* unicast cipher list */ |
| 2630 | selcnt = frm; |
| 2631 | WLAN_CRYPTO_ADDSHORT(frm, 0); |
| 2632 | |
| 2633 | if (UCIPHER_IS_SMS4(crypto_params)) { |
| 2634 | selcnt[0]++; |
| 2635 | WLAN_CRYPTO_ADDSELECTOR(frm, |
| 2636 | WLAN_WAPI_SEL(WLAN_CRYPTO_WAPI_SMS4_CIPHER)); |
| 2637 | } |
| 2638 | |
| 2639 | WLAN_CRYPTO_ADDSELECTOR(frm, |
| 2640 | WLAN_WAPI_SEL(WLAN_CRYPTO_WAPI_SMS4_CIPHER)); |
| 2641 | |
| 2642 | /* optional capabilities */ |
| 2643 | WLAN_CRYPTO_ADDSHORT(frm, crypto_params->rsn_caps); |
| 2644 | |
| 2645 | /* calculate element length */ |
| 2646 | iebuf[1] = frm - iebuf - 2; |
| 2647 | |
| 2648 | return frm; |
| 2649 | |
| 2650 | } |
| 2651 | |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 2652 | /** |
| 2653 | * wlan_crypto_pn_check - called by data patch for PN check |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 2654 | * @vdev: vdev |
| 2655 | * @wbuf: wbuf |
| 2656 | * |
| 2657 | * This function gets called by data patch for PN check |
| 2658 | * |
| 2659 | * Return: QDF_STATUS |
| 2660 | */ |
| 2661 | QDF_STATUS wlan_crypto_pn_check(struct wlan_objmgr_vdev *vdev, |
| 2662 | qdf_nbuf_t wbuf){ |
| 2663 | /* Need to check is there real requirement for this function |
| 2664 | * as PN check is already handled in decap function. |
| 2665 | */ |
| 2666 | return QDF_STATUS_SUCCESS; |
| 2667 | } |
| 2668 | |
| 2669 | /** |
| 2670 | * wlan_crypto_vdev_get_crypto_params - called by mlme to get crypto params |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 2671 | * @vdev:vdev |
| 2672 | * |
| 2673 | * This function gets called by mlme to get crypto params |
| 2674 | * |
| 2675 | * Return: wlan_crypto_params or NULL in case of failure |
| 2676 | */ |
| 2677 | struct wlan_crypto_params *wlan_crypto_vdev_get_crypto_params( |
| 2678 | struct wlan_objmgr_vdev *vdev){ |
| 2679 | struct wlan_crypto_comp_priv *crypto_priv; |
| 2680 | |
| 2681 | return wlan_crypto_vdev_get_comp_params(vdev, &crypto_priv); |
| 2682 | } |
| 2683 | |
| 2684 | /** |
| 2685 | * wlan_crypto_peer_get_crypto_params - called by mlme to get crypto params |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 2686 | * @peer:peer |
| 2687 | * |
| 2688 | * This function gets called by mlme to get crypto params |
| 2689 | * |
| 2690 | * Return: wlan_crypto_params or NULL in case of failure |
| 2691 | */ |
| 2692 | struct wlan_crypto_params *wlan_crypto_peer_get_crypto_params( |
| 2693 | struct wlan_objmgr_peer *peer){ |
| 2694 | struct wlan_crypto_comp_priv *crypto_priv; |
| 2695 | |
| 2696 | return wlan_crypto_peer_get_comp_params(peer, &crypto_priv); |
| 2697 | } |
| 2698 | |
| 2699 | |
| 2700 | QDF_STATUS wlan_crypto_set_peer_wep_keys(struct wlan_objmgr_vdev *vdev, |
Srinivas Pitla | ea71ebf | 2018-01-04 17:07:42 +0530 | [diff] [blame] | 2701 | struct wlan_objmgr_peer *peer) |
| 2702 | { |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 2703 | struct wlan_crypto_comp_priv *crypto_priv; |
Ashok Ponnaiah | b696221 | 2017-07-31 10:12:57 +0530 | [diff] [blame] | 2704 | struct wlan_crypto_comp_priv *sta_crypto_priv; |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 2705 | struct wlan_crypto_params *crypto_params; |
| 2706 | struct wlan_crypto_key *key; |
Ashok Ponnaiah | b696221 | 2017-07-31 10:12:57 +0530 | [diff] [blame] | 2707 | struct wlan_crypto_key *sta_key; |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 2708 | struct wlan_crypto_cipher *cipher_table; |
| 2709 | struct wlan_objmgr_psoc *psoc; |
Srinivas Pitla | ea71ebf | 2018-01-04 17:07:42 +0530 | [diff] [blame] | 2710 | uint8_t *mac_addr; |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 2711 | int i; |
Jeff Johnson | a426232 | 2017-11-09 09:54:12 -0800 | [diff] [blame] | 2712 | enum QDF_OPMODE opmode; |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 2713 | |
| 2714 | if (!vdev) |
| 2715 | return QDF_STATUS_E_NULL_VALUE; |
Srinivas Pitla | ea71ebf | 2018-01-04 17:07:42 +0530 | [diff] [blame] | 2716 | |
| 2717 | if (!peer) { |
| 2718 | qdf_print("%s[%d] peer NULL\n", __func__, __LINE__); |
| 2719 | return QDF_STATUS_E_INVAL; |
| 2720 | } |
| 2721 | |
Ashok Ponnaiah | 439d7b5 | 2017-03-21 11:20:36 +0530 | [diff] [blame] | 2722 | opmode = wlan_vdev_mlme_get_opmode(vdev); |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 2723 | psoc = wlan_vdev_get_psoc(vdev); |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 2724 | |
Ashok Ponnaiah | 439d7b5 | 2017-03-21 11:20:36 +0530 | [diff] [blame] | 2725 | if (!psoc) { |
| 2726 | qdf_print("%s[%d] psoc NULL\n", __func__, __LINE__); |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 2727 | return QDF_STATUS_E_NULL_VALUE; |
Ashok Ponnaiah | 439d7b5 | 2017-03-21 11:20:36 +0530 | [diff] [blame] | 2728 | } |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 2729 | |
Srinivas Pitla | ea71ebf | 2018-01-04 17:07:42 +0530 | [diff] [blame] | 2730 | wlan_peer_obj_lock(peer); |
| 2731 | mac_addr = wlan_peer_get_macaddr(peer); |
| 2732 | wlan_peer_obj_unlock(peer); |
| 2733 | |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 2734 | crypto_params = wlan_crypto_vdev_get_comp_params(vdev, |
| 2735 | &crypto_priv); |
| 2736 | if (crypto_priv == NULL) { |
| 2737 | qdf_print("%s[%d] crypto_priv NULL\n", __func__, __LINE__); |
| 2738 | return QDF_STATUS_E_NULL_VALUE; |
| 2739 | } |
| 2740 | |
| 2741 | /* push only valid static WEP keys from vap */ |
| 2742 | if (AUTH_IS_8021X(crypto_params)) |
| 2743 | return QDF_STATUS_E_INVAL; |
| 2744 | |
Ashok Ponnaiah | b696221 | 2017-07-31 10:12:57 +0530 | [diff] [blame] | 2745 | if (opmode == QDF_STA_MODE) { |
| 2746 | peer = wlan_vdev_get_bsspeer(vdev); |
Ashok Ponnaiah | b696221 | 2017-07-31 10:12:57 +0530 | [diff] [blame] | 2747 | if (!peer) { |
| 2748 | qdf_print("%s[%d] peer NULL\n", __func__, __LINE__); |
| 2749 | return QDF_STATUS_E_INVAL; |
| 2750 | } |
| 2751 | } |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 2752 | |
Ashok Ponnaiah | b696221 | 2017-07-31 10:12:57 +0530 | [diff] [blame] | 2753 | wlan_crypto_peer_get_comp_params(peer, &sta_crypto_priv); |
Ashok Ponnaiah | b696221 | 2017-07-31 10:12:57 +0530 | [diff] [blame] | 2754 | if (sta_crypto_priv == NULL) { |
| 2755 | qdf_print("%s[%d] sta priv is null\n", __func__, __LINE__); |
| 2756 | return QDF_STATUS_E_INVAL; |
| 2757 | } |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 2758 | |
| 2759 | for (i = 0; i < WLAN_CRYPTO_MAXKEYIDX; i++) { |
| 2760 | if (crypto_priv->key[i]) { |
| 2761 | key = crypto_priv->key[i]; |
| 2762 | if (!key || !key->valid) |
| 2763 | continue; |
| 2764 | |
| 2765 | cipher_table = (struct wlan_crypto_cipher *) |
| 2766 | key->cipher_table; |
| 2767 | |
| 2768 | if (cipher_table->cipher == WLAN_CRYPTO_CIPHER_WEP) { |
Ashok Ponnaiah | b696221 | 2017-07-31 10:12:57 +0530 | [diff] [blame] | 2769 | sta_key = qdf_mem_malloc( |
| 2770 | sizeof(struct wlan_crypto_key)); |
| 2771 | if (!sta_key) { |
| 2772 | qdf_print("%s[%d] key alloc failed\n", |
| 2773 | __func__, __LINE__); |
| 2774 | return QDF_STATUS_E_NOMEM; |
| 2775 | } |
| 2776 | sta_crypto_priv->key[i] = sta_key; |
| 2777 | qdf_mem_copy(sta_key, key, |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 2778 | sizeof(struct wlan_crypto_key)); |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 2779 | |
Ashok Ponnaiah | b696221 | 2017-07-31 10:12:57 +0530 | [diff] [blame] | 2780 | sta_key->flags &= ~WLAN_CRYPTO_KEY_DEFAULT; |
Ashok Ponnaiah | 4db9b8f | 2017-07-05 16:09:29 +0530 | [diff] [blame] | 2781 | |
Ashok Ponnaiah | b696221 | 2017-07-31 10:12:57 +0530 | [diff] [blame] | 2782 | if (crypto_priv->def_tx_keyid == i) { |
| 2783 | sta_key->flags |
| 2784 | |= WLAN_CRYPTO_KEY_DEFAULT; |
| 2785 | sta_crypto_priv->def_tx_keyid = |
| 2786 | crypto_priv->def_tx_keyid; |
| 2787 | } |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 2788 | /* setting the broadcast/multicast key for sta*/ |
| 2789 | if (opmode == QDF_STA_MODE || |
| 2790 | opmode == QDF_IBSS_MODE){ |
| 2791 | if (WLAN_CRYPTO_TX_OPS_SETKEY(psoc)) { |
| 2792 | WLAN_CRYPTO_TX_OPS_SETKEY(psoc)( |
Ashok Ponnaiah | b696221 | 2017-07-31 10:12:57 +0530 | [diff] [blame] | 2793 | vdev, sta_key, mac_addr, |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 2794 | cipher_table->cipher); |
| 2795 | } |
| 2796 | } |
| 2797 | |
| 2798 | /* setting unicast key */ |
Ashok Ponnaiah | b696221 | 2017-07-31 10:12:57 +0530 | [diff] [blame] | 2799 | sta_key->flags &= ~WLAN_CRYPTO_KEY_GROUP; |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 2800 | if (WLAN_CRYPTO_TX_OPS_SETKEY(psoc)) { |
| 2801 | WLAN_CRYPTO_TX_OPS_SETKEY(psoc)(vdev, |
Ashok Ponnaiah | b696221 | 2017-07-31 10:12:57 +0530 | [diff] [blame] | 2802 | sta_key, mac_addr, |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 2803 | cipher_table->cipher); |
| 2804 | } |
| 2805 | } |
| 2806 | } |
| 2807 | } |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 2808 | |
| 2809 | return QDF_STATUS_SUCCESS; |
| 2810 | } |
| 2811 | |
| 2812 | /** |
| 2813 | * wlan_crypto_register_crypto_rx_ops - set crypto_rx_ops |
Ashok Ponnaiah | 89d2881 | 2017-02-17 22:10:20 +0530 | [diff] [blame] | 2814 | * @crypto_rx_ops: crypto_rx_ops |
| 2815 | * |
| 2816 | * This function gets called by object manger to register crypto rx ops. |
| 2817 | * |
| 2818 | * Return: QDF_STATUS |
| 2819 | */ |
| 2820 | QDF_STATUS wlan_crypto_register_crypto_rx_ops( |
| 2821 | struct wlan_lmac_if_crypto_rx_ops *crypto_rx_ops){ |
| 2822 | crypto_rx_ops->crypto_encap = wlan_crypto_encap; |
| 2823 | crypto_rx_ops->crypto_decap = wlan_crypto_decap; |
| 2824 | crypto_rx_ops->crypto_enmic = wlan_crypto_enmic; |
| 2825 | crypto_rx_ops->crypto_demic = wlan_crypto_demic; |
| 2826 | crypto_rx_ops->set_peer_wep_keys = wlan_crypto_set_peer_wep_keys; |
| 2827 | |
| 2828 | return QDF_STATUS_SUCCESS; |
| 2829 | } |
Ashok Ponnaiah | 13e9f9b | 2017-03-14 04:45:29 +0530 | [diff] [blame] | 2830 | |
| 2831 | /** |
| 2832 | * wlan_crypto_get_crypto_rx_ops - get crypto_rx_ops from psoc |
Ashok Ponnaiah | 13e9f9b | 2017-03-14 04:45:29 +0530 | [diff] [blame] | 2833 | * @psoc: psoc |
| 2834 | * |
| 2835 | * This function gets called by umac to get the crypto_rx_ops |
| 2836 | * |
| 2837 | * Return: crypto_rx_ops |
| 2838 | */ |
| 2839 | struct wlan_lmac_if_crypto_rx_ops *wlan_crypto_get_crypto_rx_ops( |
| 2840 | struct wlan_objmgr_psoc *psoc) |
| 2841 | { |
| 2842 | |
| 2843 | return &(psoc->soc_cb.rx_ops.crypto_rx_ops); |
| 2844 | } |
Manikandan Mohan | a2993a5 | 2018-03-01 16:21:55 -0800 | [diff] [blame] | 2845 | qdf_export_symbol(wlan_crypto_get_crypto_rx_ops); |
Ashok Ponnaiah | 2a3df50 | 2017-07-07 17:01:41 +0530 | [diff] [blame] | 2846 | |
| 2847 | /** |
| 2848 | * wlan_crypto_vdev_has_auth_mode - check authmode for vdev |
Ashok Ponnaiah | 2a3df50 | 2017-07-07 17:01:41 +0530 | [diff] [blame] | 2849 | * @vdev: vdev |
| 2850 | * @authvalue: authvalue to be checked |
| 2851 | * |
| 2852 | * This function check is authvalue passed is set in vdev or not |
| 2853 | * |
| 2854 | * Return: true or false |
| 2855 | */ |
| 2856 | bool wlan_crypto_vdev_has_auth_mode(struct wlan_objmgr_vdev *vdev, |
| 2857 | wlan_crypto_auth_mode authvalue) |
| 2858 | { |
| 2859 | return wlan_crypto_get_param(vdev, WLAN_CRYPTO_PARAM_AUTH_MODE) |
| 2860 | & authvalue; |
| 2861 | } |
Ashok Ponnaiah | 455eb68 | 2018-03-19 10:33:22 +0530 | [diff] [blame] | 2862 | qdf_export_symbol(wlan_crypto_vdev_has_auth_mode); |
Ashok Ponnaiah | 2a3df50 | 2017-07-07 17:01:41 +0530 | [diff] [blame] | 2863 | |
| 2864 | /** |
| 2865 | * wlan_crypto_peer_has_auth_mode - check authmode for peer |
Ashok Ponnaiah | 2a3df50 | 2017-07-07 17:01:41 +0530 | [diff] [blame] | 2866 | * @peer: peer |
| 2867 | * @authvalue: authvalue to be checked |
| 2868 | * |
| 2869 | * This function check is authvalue passed is set in peer or not |
| 2870 | * |
| 2871 | * Return: true or false |
| 2872 | */ |
| 2873 | bool wlan_crypto_peer_has_auth_mode(struct wlan_objmgr_peer *peer, |
| 2874 | wlan_crypto_auth_mode authvalue) |
| 2875 | { |
| 2876 | return wlan_crypto_get_peer_param(peer, WLAN_CRYPTO_PARAM_AUTH_MODE) |
| 2877 | & authvalue; |
| 2878 | } |
Ashok Ponnaiah | 455eb68 | 2018-03-19 10:33:22 +0530 | [diff] [blame] | 2879 | qdf_export_symbol(wlan_crypto_peer_has_auth_mode); |
Subrat Mishra | 2b75d6d | 2017-08-07 17:36:25 +0530 | [diff] [blame] | 2880 | |
Ashok Ponnaiah | afb8893 | 2018-04-17 10:15:24 +0530 | [diff] [blame] | 2881 | /** |
| 2882 | * wlan_crypto_vdev_has_ucastcipher - check ucastcipher for vdev |
| 2883 | * @vdev: vdev |
| 2884 | * @ucastcipher: ucastcipher to be checked |
| 2885 | * |
| 2886 | * This function check is ucastcipher passed is set in vdev or not |
| 2887 | * |
| 2888 | * Return: true or false |
| 2889 | */ |
| 2890 | bool wlan_crypto_vdev_has_ucastcipher(struct wlan_objmgr_vdev *vdev, |
| 2891 | wlan_crypto_cipher_type ucastcipher) |
| 2892 | { |
| 2893 | return wlan_crypto_get_param(vdev, WLAN_CRYPTO_PARAM_UCAST_CIPHER) |
| 2894 | & ucastcipher; |
| 2895 | } |
| 2896 | qdf_export_symbol(wlan_crypto_vdev_has_ucastcipher); |
| 2897 | |
| 2898 | /** |
| 2899 | * wlan_crypto_peer_has_ucastcipher - check ucastcipher for peer |
| 2900 | * @peer: peer |
| 2901 | * @ucastcipher: ucastcipher to be checked |
| 2902 | * |
| 2903 | * This function check is ucastcipher passed is set in peer or not |
| 2904 | * |
| 2905 | * Return: true or false |
| 2906 | */ |
| 2907 | bool wlan_crypto_peer_has_ucastcipher(struct wlan_objmgr_peer *peer, |
| 2908 | wlan_crypto_cipher_type ucastcipher) |
| 2909 | { |
| 2910 | return wlan_crypto_get_peer_param(peer, WLAN_CRYPTO_PARAM_UCAST_CIPHER) |
| 2911 | & ucastcipher; |
| 2912 | } |
| 2913 | qdf_export_symbol(wlan_crypto_peer_has_ucastcipher); |
| 2914 | |
| 2915 | /** |
| 2916 | * wlan_crypto_vdev_has_mcastcipher - check mcastcipher for vdev |
| 2917 | * @vdev: vdev |
| 2918 | * @mcastcipher: mcastcipher to be checked |
| 2919 | * |
| 2920 | * This function check is mcastcipher passed is set in vdev or not |
| 2921 | * |
| 2922 | * Return: true or false |
| 2923 | */ |
| 2924 | bool wlan_crypto_vdev_has_mcastcipher(struct wlan_objmgr_vdev *vdev, |
| 2925 | wlan_crypto_cipher_type mcastcipher) |
| 2926 | { |
| 2927 | return wlan_crypto_get_param(vdev, WLAN_CRYPTO_PARAM_MCAST_CIPHER) |
| 2928 | & mcastcipher; |
| 2929 | } |
| 2930 | qdf_export_symbol(wlan_crypto_vdev_has_mcastcipher); |
| 2931 | |
| 2932 | /** |
| 2933 | * wlan_crypto_peer_has_mcastcipher - check mcastcipher for peer |
| 2934 | * @peer: peer |
| 2935 | * @mcastcipher: mcastcipher to be checked |
| 2936 | * |
| 2937 | * This function check is mcastcipher passed is set in peer or not |
| 2938 | * |
| 2939 | * Return: true or false |
| 2940 | */ |
| 2941 | bool wlan_crypto_peer_has_mcastcipher(struct wlan_objmgr_peer *peer, |
| 2942 | wlan_crypto_cipher_type mcastcipher) |
| 2943 | { |
| 2944 | return wlan_crypto_get_peer_param(peer, WLAN_CRYPTO_PARAM_UCAST_CIPHER) |
| 2945 | & mcastcipher; |
| 2946 | } |
| 2947 | qdf_export_symbol(wlan_crypto_peer_has_mcastcipher); |
| 2948 | |
Subrat Mishra | 2b75d6d | 2017-08-07 17:36:25 +0530 | [diff] [blame] | 2949 | uint8_t wlan_crypto_get_peer_fils_aead(struct wlan_objmgr_peer *peer) |
| 2950 | { |
| 2951 | struct wlan_crypto_comp_priv *crypto_priv = NULL; |
| 2952 | |
| 2953 | if (!peer) { |
| 2954 | qdf_print(FL("Invalid Input\n")); |
| 2955 | return 0; |
| 2956 | } |
| 2957 | |
| 2958 | crypto_priv = wlan_get_peer_crypto_obj(peer); |
| 2959 | if (!crypto_priv) { |
| 2960 | qdf_print(FL("crypto_priv NULL\n")); |
| 2961 | return 0; |
| 2962 | } |
| 2963 | |
| 2964 | return crypto_priv->fils_aead_set; |
| 2965 | } |
| 2966 | |
| 2967 | void |
| 2968 | wlan_crypto_set_peer_fils_aead(struct wlan_objmgr_peer *peer, uint8_t value) |
| 2969 | { |
| 2970 | struct wlan_crypto_comp_priv *crypto_priv = NULL; |
| 2971 | |
| 2972 | if (!peer) { |
| 2973 | qdf_print(FL("Invalid Input\n")); |
| 2974 | return; |
| 2975 | } |
| 2976 | |
| 2977 | crypto_priv = wlan_get_peer_crypto_obj(peer); |
| 2978 | if (!crypto_priv) { |
| 2979 | qdf_print(FL("crypto_priv NULL\n")); |
| 2980 | return; |
| 2981 | } |
| 2982 | |
| 2983 | crypto_priv->fils_aead_set = value; |
| 2984 | } |