1 /* 2 * Copyright (C) 2017 The Android Open Source Project 3 * 4 * Portions copyright (C) 2017 Broadcom Limited 5 * 6 * Licensed under the Apache License, Version 2.0 (the "License"); 7 * you may not use this file except in compliance with the License. 8 * You may obtain a copy of the License at 9 * 10 * http://www.apache.org/licenses/LICENSE-2.0 11 * 12 * Unless required by applicable law or agreed to in writing, software 13 * distributed under the License is distributed on an "AS IS" BASIS, 14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 15 * See the License for the specific language governing permissions and 16 * limitations under the License. 17 */ 18 19 #include <stdint.h> 20 #include <fcntl.h> 21 #include <sys/socket.h> 22 #include <netlink/genl/genl.h> 23 #include <netlink/genl/family.h> 24 #include <netlink/genl/ctrl.h> 25 #include <linux/rtnetlink.h> 26 #include <netpacket/packet.h> 27 #include <linux/filter.h> 28 #include <linux/errqueue.h> 29 30 #include <linux/pkt_sched.h> 31 #include <netlink/object-api.h> 32 #include <netlink/netlink.h> 33 #include <netlink/socket.h> 34 #include <netlink/handlers.h> 35 36 #include <ctype.h> 37 38 #include "wifi_hal.h" 39 #include "common.h" 40 #include "cpp_bindings.h" 41 42 void appendFmt(char *buf, int &offset, const char *fmt, ...) 43 { 44 va_list params; 45 va_start(params, fmt); 46 offset += vsprintf(buf + offset, fmt, params); 47 va_end(params); 48 } 49 50 #define C2S(x) case x: return #x; 51 52 static const char *cmdToString(int cmd) 53 { 54 switch (cmd) { 55 C2S(NL80211_CMD_UNSPEC) 56 C2S(NL80211_CMD_GET_WIPHY) 57 C2S(NL80211_CMD_SET_WIPHY) 58 C2S(NL80211_CMD_NEW_WIPHY) 59 C2S(NL80211_CMD_DEL_WIPHY) 60 C2S(NL80211_CMD_GET_INTERFACE) 61 C2S(NL80211_CMD_SET_INTERFACE) 62 C2S(NL80211_CMD_NEW_INTERFACE) 63 C2S(NL80211_CMD_DEL_INTERFACE) 64 C2S(NL80211_CMD_GET_KEY) 65 C2S(NL80211_CMD_SET_KEY) 66 C2S(NL80211_CMD_NEW_KEY) 67 C2S(NL80211_CMD_DEL_KEY) 68 C2S(NL80211_CMD_GET_BEACON) 69 C2S(NL80211_CMD_SET_BEACON) 70 C2S(NL80211_CMD_START_AP) 71 C2S(NL80211_CMD_STOP_AP) 72 C2S(NL80211_CMD_GET_STATION) 73 C2S(NL80211_CMD_SET_STATION) 74 C2S(NL80211_CMD_NEW_STATION) 75 C2S(NL80211_CMD_DEL_STATION) 76 C2S(NL80211_CMD_GET_MPATH) 77 C2S(NL80211_CMD_SET_MPATH) 78 C2S(NL80211_CMD_NEW_MPATH) 79 C2S(NL80211_CMD_DEL_MPATH) 80 C2S(NL80211_CMD_SET_BSS) 81 C2S(NL80211_CMD_SET_REG) 82 C2S(NL80211_CMD_REQ_SET_REG) 83 C2S(NL80211_CMD_GET_MESH_CONFIG) 84 C2S(NL80211_CMD_SET_MESH_CONFIG) 85 C2S(NL80211_CMD_SET_MGMT_EXTRA_IE) 86 C2S(NL80211_CMD_GET_REG) 87 C2S(NL80211_CMD_GET_SCAN) 88 C2S(NL80211_CMD_TRIGGER_SCAN) 89 C2S(NL80211_CMD_NEW_SCAN_RESULTS) 90 C2S(NL80211_CMD_SCAN_ABORTED) 91 C2S(NL80211_CMD_REG_CHANGE) 92 C2S(NL80211_CMD_AUTHENTICATE) 93 C2S(NL80211_CMD_ASSOCIATE) 94 C2S(NL80211_CMD_DEAUTHENTICATE) 95 C2S(NL80211_CMD_DISASSOCIATE) 96 C2S(NL80211_CMD_MICHAEL_MIC_FAILURE) 97 C2S(NL80211_CMD_REG_BEACON_HINT) 98 C2S(NL80211_CMD_JOIN_IBSS) 99 C2S(NL80211_CMD_LEAVE_IBSS) 100 C2S(NL80211_CMD_TESTMODE) 101 C2S(NL80211_CMD_CONNECT) 102 C2S(NL80211_CMD_ROAM) 103 C2S(NL80211_CMD_DISCONNECT) 104 C2S(NL80211_CMD_SET_WIPHY_NETNS) 105 C2S(NL80211_CMD_GET_SURVEY) 106 C2S(NL80211_CMD_NEW_SURVEY_RESULTS) 107 C2S(NL80211_CMD_SET_PMKSA) 108 C2S(NL80211_CMD_DEL_PMKSA) 109 C2S(NL80211_CMD_FLUSH_PMKSA) 110 C2S(NL80211_CMD_REMAIN_ON_CHANNEL) 111 C2S(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL) 112 C2S(NL80211_CMD_SET_TX_BITRATE_MASK) 113 C2S(NL80211_CMD_REGISTER_FRAME) 114 C2S(NL80211_CMD_FRAME) 115 C2S(NL80211_CMD_FRAME_TX_STATUS) 116 C2S(NL80211_CMD_SET_POWER_SAVE) 117 C2S(NL80211_CMD_GET_POWER_SAVE) 118 C2S(NL80211_CMD_SET_CQM) 119 C2S(NL80211_CMD_NOTIFY_CQM) 120 C2S(NL80211_CMD_SET_CHANNEL) 121 C2S(NL80211_CMD_SET_WDS_PEER) 122 C2S(NL80211_CMD_FRAME_WAIT_CANCEL) 123 C2S(NL80211_CMD_JOIN_MESH) 124 C2S(NL80211_CMD_LEAVE_MESH) 125 C2S(NL80211_CMD_UNPROT_DEAUTHENTICATE) 126 C2S(NL80211_CMD_UNPROT_DISASSOCIATE) 127 C2S(NL80211_CMD_NEW_PEER_CANDIDATE) 128 C2S(NL80211_CMD_GET_WOWLAN) 129 C2S(NL80211_CMD_SET_WOWLAN) 130 C2S(NL80211_CMD_START_SCHED_SCAN) 131 C2S(NL80211_CMD_STOP_SCHED_SCAN) 132 C2S(NL80211_CMD_SCHED_SCAN_RESULTS) 133 C2S(NL80211_CMD_SCHED_SCAN_STOPPED) 134 C2S(NL80211_CMD_SET_REKEY_OFFLOAD) 135 C2S(NL80211_CMD_PMKSA_CANDIDATE) 136 C2S(NL80211_CMD_TDLS_OPER) 137 C2S(NL80211_CMD_TDLS_MGMT) 138 C2S(NL80211_CMD_UNEXPECTED_FRAME) 139 C2S(NL80211_CMD_PROBE_CLIENT) 140 C2S(NL80211_CMD_REGISTER_BEACONS) 141 C2S(NL80211_CMD_UNEXPECTED_4ADDR_FRAME) 142 C2S(NL80211_CMD_SET_NOACK_MAP) 143 C2S(NL80211_CMD_CH_SWITCH_NOTIFY) 144 C2S(NL80211_CMD_START_P2P_DEVICE) 145 C2S(NL80211_CMD_STOP_P2P_DEVICE) 146 C2S(NL80211_CMD_CONN_FAILED) 147 C2S(NL80211_CMD_SET_MCAST_RATE) 148 C2S(NL80211_CMD_SET_MAC_ACL) 149 C2S(NL80211_CMD_RADAR_DETECT) 150 C2S(NL80211_CMD_GET_PROTOCOL_FEATURES) 151 C2S(NL80211_CMD_UPDATE_FT_IES) 152 C2S(NL80211_CMD_FT_EVENT) 153 C2S(NL80211_CMD_CRIT_PROTOCOL_START) 154 C2S(NL80211_CMD_CRIT_PROTOCOL_STOP) 155 C2S(NL80211_CMD_GET_COALESCE) 156 C2S(NL80211_CMD_SET_COALESCE) 157 C2S(NL80211_CMD_CHANNEL_SWITCH) 158 C2S(NL80211_CMD_VENDOR) 159 C2S(NL80211_CMD_SET_QOS_MAP) 160 default: 161 return "NL80211_CMD_UNKNOWN"; 162 } 163 } 164 165 const char *attributeToString(int attribute) 166 { 167 switch (attribute) { 168 C2S(NL80211_ATTR_UNSPEC) 169 170 C2S(NL80211_ATTR_WIPHY) 171 C2S(NL80211_ATTR_WIPHY_NAME) 172 173 C2S(NL80211_ATTR_IFINDEX) 174 C2S(NL80211_ATTR_IFNAME) 175 C2S(NL80211_ATTR_IFTYPE) 176 177 C2S(NL80211_ATTR_MAC) 178 179 C2S(NL80211_ATTR_KEY_DATA) 180 C2S(NL80211_ATTR_KEY_IDX) 181 C2S(NL80211_ATTR_KEY_CIPHER) 182 C2S(NL80211_ATTR_KEY_SEQ) 183 C2S(NL80211_ATTR_KEY_DEFAULT) 184 185 C2S(NL80211_ATTR_BEACON_INTERVAL) 186 C2S(NL80211_ATTR_DTIM_PERIOD) 187 C2S(NL80211_ATTR_BEACON_HEAD) 188 C2S(NL80211_ATTR_BEACON_TAIL) 189 190 C2S(NL80211_ATTR_STA_AID) 191 C2S(NL80211_ATTR_STA_FLAGS) 192 C2S(NL80211_ATTR_STA_LISTEN_INTERVAL) 193 C2S(NL80211_ATTR_STA_SUPPORTED_RATES) 194 C2S(NL80211_ATTR_STA_VLAN) 195 C2S(NL80211_ATTR_STA_INFO) 196 197 C2S(NL80211_ATTR_WIPHY_BANDS) 198 199 C2S(NL80211_ATTR_MNTR_FLAGS) 200 201 C2S(NL80211_ATTR_MESH_ID) 202 C2S(NL80211_ATTR_STA_PLINK_ACTION) 203 C2S(NL80211_ATTR_MPATH_NEXT_HOP) 204 C2S(NL80211_ATTR_MPATH_INFO) 205 206 C2S(NL80211_ATTR_BSS_CTS_PROT) 207 C2S(NL80211_ATTR_BSS_SHORT_PREAMBLE) 208 C2S(NL80211_ATTR_BSS_SHORT_SLOT_TIME) 209 210 C2S(NL80211_ATTR_HT_CAPABILITY) 211 212 C2S(NL80211_ATTR_SUPPORTED_IFTYPES) 213 214 C2S(NL80211_ATTR_REG_ALPHA2) 215 C2S(NL80211_ATTR_REG_RULES) 216 217 C2S(NL80211_ATTR_MESH_CONFIG) 218 219 C2S(NL80211_ATTR_BSS_BASIC_RATES) 220 221 C2S(NL80211_ATTR_WIPHY_TXQ_PARAMS) 222 C2S(NL80211_ATTR_WIPHY_FREQ) 223 C2S(NL80211_ATTR_WIPHY_CHANNEL_TYPE) 224 225 C2S(NL80211_ATTR_KEY_DEFAULT_MGMT) 226 227 C2S(NL80211_ATTR_MGMT_SUBTYPE) 228 C2S(NL80211_ATTR_IE) 229 230 C2S(NL80211_ATTR_MAX_NUM_SCAN_SSIDS) 231 232 C2S(NL80211_ATTR_SCAN_FREQUENCIES) 233 C2S(NL80211_ATTR_SCAN_SSIDS) 234 C2S(NL80211_ATTR_GENERATION) /* replaces old SCAN_GENERATION */ 235 C2S(NL80211_ATTR_BSS) 236 237 C2S(NL80211_ATTR_REG_INITIATOR) 238 C2S(NL80211_ATTR_REG_TYPE) 239 240 C2S(NL80211_ATTR_SUPPORTED_COMMANDS) 241 242 C2S(NL80211_ATTR_FRAME) 243 C2S(NL80211_ATTR_SSID) 244 C2S(NL80211_ATTR_AUTH_TYPE) 245 C2S(NL80211_ATTR_REASON_CODE) 246 247 C2S(NL80211_ATTR_KEY_TYPE) 248 249 C2S(NL80211_ATTR_MAX_SCAN_IE_LEN) 250 C2S(NL80211_ATTR_CIPHER_SUITES) 251 252 C2S(NL80211_ATTR_FREQ_BEFORE) 253 C2S(NL80211_ATTR_FREQ_AFTER) 254 255 C2S(NL80211_ATTR_FREQ_FIXED) 256 257 258 C2S(NL80211_ATTR_WIPHY_RETRY_SHORT) 259 C2S(NL80211_ATTR_WIPHY_RETRY_LONG) 260 C2S(NL80211_ATTR_WIPHY_FRAG_THRESHOLD) 261 C2S(NL80211_ATTR_WIPHY_RTS_THRESHOLD) 262 263 C2S(NL80211_ATTR_TIMED_OUT) 264 265 C2S(NL80211_ATTR_USE_MFP) 266 267 C2S(NL80211_ATTR_STA_FLAGS2) 268 269 C2S(NL80211_ATTR_CONTROL_PORT) 270 271 C2S(NL80211_ATTR_TESTDATA) 272 273 C2S(NL80211_ATTR_PRIVACY) 274 275 C2S(NL80211_ATTR_DISCONNECTED_BY_AP) 276 C2S(NL80211_ATTR_STATUS_CODE) 277 278 C2S(NL80211_ATTR_CIPHER_SUITES_PAIRWISE) 279 C2S(NL80211_ATTR_CIPHER_SUITE_GROUP) 280 C2S(NL80211_ATTR_WPA_VERSIONS) 281 C2S(NL80211_ATTR_AKM_SUITES) 282 283 C2S(NL80211_ATTR_REQ_IE) 284 C2S(NL80211_ATTR_RESP_IE) 285 286 C2S(NL80211_ATTR_PREV_BSSID) 287 288 C2S(NL80211_ATTR_KEY) 289 C2S(NL80211_ATTR_KEYS) 290 291 C2S(NL80211_ATTR_PID) 292 293 C2S(NL80211_ATTR_4ADDR) 294 295 C2S(NL80211_ATTR_SURVEY_INFO) 296 297 C2S(NL80211_ATTR_PMKID) 298 C2S(NL80211_ATTR_MAX_NUM_PMKIDS) 299 300 C2S(NL80211_ATTR_DURATION) 301 302 C2S(NL80211_ATTR_COOKIE) 303 304 C2S(NL80211_ATTR_WIPHY_COVERAGE_CLASS) 305 306 C2S(NL80211_ATTR_TX_RATES) 307 308 C2S(NL80211_ATTR_FRAME_MATCH) 309 310 C2S(NL80211_ATTR_ACK) 311 312 C2S(NL80211_ATTR_PS_STATE) 313 314 C2S(NL80211_ATTR_CQM) 315 316 C2S(NL80211_ATTR_LOCAL_STATE_CHANGE) 317 318 C2S(NL80211_ATTR_AP_ISOLATE) 319 320 C2S(NL80211_ATTR_WIPHY_TX_POWER_SETTING) 321 C2S(NL80211_ATTR_WIPHY_TX_POWER_LEVEL) 322 323 C2S(NL80211_ATTR_TX_FRAME_TYPES) 324 C2S(NL80211_ATTR_RX_FRAME_TYPES) 325 C2S(NL80211_ATTR_FRAME_TYPE) 326 327 C2S(NL80211_ATTR_CONTROL_PORT_ETHERTYPE) 328 C2S(NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT) 329 330 C2S(NL80211_ATTR_SUPPORT_IBSS_RSN) 331 332 C2S(NL80211_ATTR_WIPHY_ANTENNA_TX) 333 C2S(NL80211_ATTR_WIPHY_ANTENNA_RX) 334 335 C2S(NL80211_ATTR_MCAST_RATE) 336 337 C2S(NL80211_ATTR_OFFCHANNEL_TX_OK) 338 339 C2S(NL80211_ATTR_BSS_HT_OPMODE) 340 341 C2S(NL80211_ATTR_KEY_DEFAULT_TYPES) 342 343 C2S(NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION) 344 345 C2S(NL80211_ATTR_MESH_SETUP) 346 347 C2S(NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX) 348 C2S(NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX) 349 350 C2S(NL80211_ATTR_SUPPORT_MESH_AUTH) 351 C2S(NL80211_ATTR_STA_PLINK_STATE) 352 353 C2S(NL80211_ATTR_WOWLAN_TRIGGERS) 354 C2S(NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED) 355 356 C2S(NL80211_ATTR_SCHED_SCAN_INTERVAL) 357 358 C2S(NL80211_ATTR_INTERFACE_COMBINATIONS) 359 C2S(NL80211_ATTR_SOFTWARE_IFTYPES) 360 361 C2S(NL80211_ATTR_REKEY_DATA) 362 363 C2S(NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS) 364 C2S(NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN) 365 366 C2S(NL80211_ATTR_SCAN_SUPP_RATES) 367 368 C2S(NL80211_ATTR_HIDDEN_SSID) 369 370 C2S(NL80211_ATTR_IE_PROBE_RESP) 371 C2S(NL80211_ATTR_IE_ASSOC_RESP) 372 373 C2S(NL80211_ATTR_STA_WME) 374 C2S(NL80211_ATTR_SUPPORT_AP_UAPSD) 375 376 C2S(NL80211_ATTR_ROAM_SUPPORT) 377 378 C2S(NL80211_ATTR_SCHED_SCAN_MATCH) 379 C2S(NL80211_ATTR_MAX_MATCH_SETS) 380 381 C2S(NL80211_ATTR_PMKSA_CANDIDATE) 382 383 C2S(NL80211_ATTR_TX_NO_CCK_RATE) 384 385 C2S(NL80211_ATTR_TDLS_ACTION) 386 C2S(NL80211_ATTR_TDLS_DIALOG_TOKEN) 387 C2S(NL80211_ATTR_TDLS_OPERATION) 388 C2S(NL80211_ATTR_TDLS_SUPPORT) 389 C2S(NL80211_ATTR_TDLS_EXTERNAL_SETUP) 390 391 C2S(NL80211_ATTR_DEVICE_AP_SME) 392 393 C2S(NL80211_ATTR_DONT_WAIT_FOR_ACK) 394 395 C2S(NL80211_ATTR_FEATURE_FLAGS) 396 397 C2S(NL80211_ATTR_PROBE_RESP_OFFLOAD) 398 399 C2S(NL80211_ATTR_PROBE_RESP) 400 401 C2S(NL80211_ATTR_DFS_REGION) 402 403 C2S(NL80211_ATTR_DISABLE_HT) 404 C2S(NL80211_ATTR_HT_CAPABILITY_MASK) 405 406 C2S(NL80211_ATTR_NOACK_MAP) 407 408 C2S(NL80211_ATTR_INACTIVITY_TIMEOUT) 409 410 C2S(NL80211_ATTR_RX_SIGNAL_DBM) 411 412 C2S(NL80211_ATTR_BG_SCAN_PERIOD) 413 414 C2S(NL80211_ATTR_WDEV) 415 416 C2S(NL80211_ATTR_USER_REG_HINT_TYPE) 417 418 C2S(NL80211_ATTR_CONN_FAILED_REASON) 419 420 C2S(NL80211_ATTR_SAE_DATA) 421 422 C2S(NL80211_ATTR_VHT_CAPABILITY) 423 424 C2S(NL80211_ATTR_SCAN_FLAGS) 425 426 C2S(NL80211_ATTR_CHANNEL_WIDTH) 427 C2S(NL80211_ATTR_CENTER_FREQ1) 428 C2S(NL80211_ATTR_CENTER_FREQ2) 429 430 C2S(NL80211_ATTR_P2P_CTWINDOW) 431 C2S(NL80211_ATTR_P2P_OPPPS) 432 433 C2S(NL80211_ATTR_LOCAL_MESH_POWER_MODE) 434 435 C2S(NL80211_ATTR_ACL_POLICY) 436 437 C2S(NL80211_ATTR_MAC_ADDRS) 438 439 C2S(NL80211_ATTR_MAC_ACL_MAX) 440 441 C2S(NL80211_ATTR_RADAR_EVENT) 442 443 C2S(NL80211_ATTR_EXT_CAPA) 444 C2S(NL80211_ATTR_EXT_CAPA_MASK) 445 446 C2S(NL80211_ATTR_STA_CAPABILITY) 447 C2S(NL80211_ATTR_STA_EXT_CAPABILITY) 448 449 C2S(NL80211_ATTR_PROTOCOL_FEATURES) 450 C2S(NL80211_ATTR_SPLIT_WIPHY_DUMP) 451 452 C2S(NL80211_ATTR_DISABLE_VHT) 453 C2S(NL80211_ATTR_VHT_CAPABILITY_MASK) 454 455 C2S(NL80211_ATTR_MDID) 456 C2S(NL80211_ATTR_IE_RIC) 457 458 C2S(NL80211_ATTR_CRIT_PROT_ID) 459 C2S(NL80211_ATTR_MAX_CRIT_PROT_DURATION) 460 461 C2S(NL80211_ATTR_PEER_AID) 462 463 C2S(NL80211_ATTR_COALESCE_RULE) 464 465 C2S(NL80211_ATTR_CH_SWITCH_COUNT) 466 C2S(NL80211_ATTR_CH_SWITCH_BLOCK_TX) 467 C2S(NL80211_ATTR_CSA_IES) 468 C2S(NL80211_ATTR_CSA_C_OFF_BEACON) 469 C2S(NL80211_ATTR_CSA_C_OFF_PRESP) 470 471 C2S(NL80211_ATTR_RXMGMT_FLAGS) 472 473 C2S(NL80211_ATTR_STA_SUPPORTED_CHANNELS) 474 475 C2S(NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES) 476 477 C2S(NL80211_ATTR_HANDLE_DFS) 478 479 C2S(NL80211_ATTR_SUPPORT_5_MHZ) 480 C2S(NL80211_ATTR_SUPPORT_10_MHZ) 481 482 C2S(NL80211_ATTR_OPMODE_NOTIF) 483 484 C2S(NL80211_ATTR_VENDOR_ID) 485 C2S(NL80211_ATTR_VENDOR_SUBCMD) 486 C2S(NL80211_ATTR_VENDOR_DATA) 487 C2S(NL80211_ATTR_VENDOR_EVENTS) 488 489 C2S(NL80211_ATTR_QOS_MAP) 490 default: 491 return "NL80211_ATTR_UNKNOWN"; 492 } 493 } 494 495 void WifiEvent::log() { 496 parse(); 497 498 byte *data = (byte *)genlmsg_attrdata(mHeader, 0); 499 int len = genlmsg_attrlen(mHeader, 0); 500 ALOGD("cmd = %s, len = %d", get_cmdString(), len); 501 ALOGD("vendor_id = %04x, vendor_subcmd = %d", get_vendor_id(), get_vendor_subcmd()); 502 503 for (int i = 0; i < len; i += 16) { 504 char line[81]; 505 int linelen = min(16, len - i); 506 int offset = 0; 507 appendFmt(line, offset, "%02x", data[i]); 508 for (int j = 1; j < linelen; j++) { 509 appendFmt(line, offset, " %02x", data[i+j]); 510 } 511 512 for (int j = linelen; j < 16; j++) { 513 appendFmt(line, offset, " "); 514 } 515 516 line[23] = '-'; 517 518 appendFmt(line, offset, " "); 519 520 for (int j = 0; j < linelen; j++) { 521 if (isprint(data[i+j])) { 522 appendFmt(line, offset, "%c", data[i+j]); 523 } else { 524 appendFmt(line, offset, "-"); 525 } 526 } 527 528 ALOGD("%s", line); 529 } 530 531 for (unsigned i = 0; i < NL80211_ATTR_MAX_INTERNAL; i++) { 532 if (mAttributes[i] != NULL) { 533 ALOGD("found attribute %s", attributeToString(i)); 534 } 535 } 536 537 ALOGD("-- End of message --"); 538 } 539 540 const char *WifiEvent::get_cmdString() { 541 return cmdToString(get_cmd()); 542 } 543 544 545 int WifiEvent::parse() { 546 if (mHeader != NULL) { 547 return WIFI_SUCCESS; 548 } 549 mHeader = (genlmsghdr *)nlmsg_data(nlmsg_hdr(mMsg)); 550 int result = nla_parse(mAttributes, NL80211_ATTR_MAX_INTERNAL, genlmsg_attrdata(mHeader, 0), 551 genlmsg_attrlen(mHeader, 0), NULL); 552 553 // ALOGD("event len = %d", nlmsg_hdr(mMsg)->nlmsg_len); 554 return result; 555 } 556 557 int WifiRequest::create(int family, uint8_t cmd, int flags, int hdrlen) { 558 559 destroy(); 560 561 mMsg = nlmsg_alloc(); 562 if (mMsg != NULL) { 563 genlmsg_put(mMsg, /* pid = */ 0, /* seq = */ 0, family, 564 hdrlen, flags, cmd, /* version = */ 0); 565 return WIFI_SUCCESS; 566 } else { 567 return WIFI_ERROR_OUT_OF_MEMORY; 568 } 569 } 570 571 int WifiRequest::create(uint32_t id, int subcmd) { 572 int res = create(NL80211_CMD_VENDOR); 573 if (res < 0) { 574 return res; 575 } 576 577 res = put_u32(NL80211_ATTR_VENDOR_ID, id); 578 if (res < 0) { 579 return res; 580 } 581 582 res = put_u32(NL80211_ATTR_VENDOR_SUBCMD, subcmd); 583 if (res < 0) { 584 return res; 585 } 586 587 if (mIface != -1) { 588 res = set_iface_id(mIface); 589 } 590 591 return res; 592 } 593 594 595 static int no_seq_check(struct nl_msg *msg, void *arg) 596 { 597 return NL_OK; 598 } 599 600 int WifiCommand::requestResponse() { 601 int err = create(); /* create the message */ 602 if (err < 0) { 603 return err; 604 } 605 606 return requestResponse(mMsg); 607 } 608 609 int WifiCommand::requestResponse(WifiRequest& request) { 610 int err = 0; 611 612 struct nl_cb *cb = nl_cb_alloc(NL_CB_DEFAULT); 613 if (!cb) 614 goto out; 615 616 err = nl_send_auto_complete(mInfo->cmd_sock, request.getMessage()); /* send message */ 617 if (err < 0) 618 goto out; 619 620 err = 1; 621 622 nl_cb_set(cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, no_seq_check, NULL); 623 nl_cb_err(cb, NL_CB_CUSTOM, error_handler, &err); 624 nl_cb_set(cb, NL_CB_FINISH, NL_CB_CUSTOM, finish_handler, &err); 625 nl_cb_set(cb, NL_CB_ACK, NL_CB_CUSTOM, ack_handler, &err); 626 nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM, response_handler, this); 627 628 while (err > 0) { /* wait for reply */ 629 int res = nl_recvmsgs(mInfo->cmd_sock, cb); 630 if (res) { 631 ALOGE("nl80211: %s->nl_recvmsgs failed: %d", __func__, res); 632 } 633 } 634 out: 635 nl_cb_put(cb); 636 return err; 637 } 638 639 int WifiCommand::requestEvent(int cmd) { 640 641 ALOGD("requesting event %d", cmd); 642 643 int res = wifi_register_handler(wifiHandle(), cmd, event_handler, this); 644 if (res < 0) { 645 return res; 646 } 647 648 res = create(); /* create the message */ 649 if (res < 0) 650 goto out; 651 652 ALOGD("waiting for response %d", cmd); 653 654 res = nl_send_auto_complete(mInfo->cmd_sock, mMsg.getMessage()); /* send message */ 655 if (res < 0) 656 goto out; 657 658 ALOGD("waiting for event %d", cmd); 659 res = mCondition.wait(); 660 if (res < 0) 661 goto out; 662 663 out: 664 wifi_unregister_handler(wifiHandle(), cmd); 665 return res; 666 } 667 668 int WifiCommand::requestVendorEvent(uint32_t id, int subcmd) { 669 670 int res = wifi_register_vendor_handler(wifiHandle(), id, subcmd, event_handler, this); 671 if (res < 0) { 672 return res; 673 } 674 675 res = create(); /* create the message */ 676 if (res < 0) 677 goto out; 678 679 res = nl_send_auto_complete(mInfo->cmd_sock, mMsg.getMessage()); /* send message */ 680 if (res < 0) 681 goto out; 682 683 res = mCondition.wait(); 684 if (res < 0) 685 goto out; 686 687 out: 688 wifi_unregister_vendor_handler(wifiHandle(), id, subcmd); 689 return res; 690 } 691 692 /* Event handlers */ 693 int WifiCommand::response_handler(struct nl_msg *msg, void *arg) { 694 // ALOGD("response_handler called"); 695 WifiCommand *cmd = (WifiCommand *)arg; 696 WifiEvent reply(msg); 697 int res = reply.parse(); 698 if (res < 0) { 699 ALOGE("Failed to parse reply message = %d", res); 700 return NL_SKIP; 701 } else { 702 // reply.log(); 703 return cmd->handleResponse(reply); 704 } 705 } 706 707 int WifiCommand::event_handler(struct nl_msg *msg, void *arg) { 708 WifiCommand *cmd = (WifiCommand *)arg; 709 WifiEvent event(msg); 710 int res = event.parse(); 711 if (res < 0) { 712 ALOGE("Failed to parse event = %d", res); 713 res = NL_SKIP; 714 } else { 715 res = cmd->handleEvent(event); 716 } 717 718 cmd->mCondition.signal(); 719 return res; 720 } 721 722 /* Other event handlers */ 723 int WifiCommand::valid_handler(struct nl_msg *msg, void *arg) { 724 // ALOGD("valid_handler called"); 725 int *err = (int *)arg; 726 *err = 0; 727 return NL_SKIP; 728 } 729 730 int WifiCommand::ack_handler(struct nl_msg *msg, void *arg) { 731 // ALOGD("ack_handler called"); 732 int *err = (int *)arg; 733 *err = 0; 734 return NL_STOP; 735 } 736 737 int WifiCommand::finish_handler(struct nl_msg *msg, void *arg) { 738 // ALOGD("finish_handler called"); 739 int *ret = (int *)arg; 740 *ret = 0; 741 return NL_SKIP; 742 } 743 744 int WifiCommand::error_handler(struct sockaddr_nl *nla, struct nlmsgerr *err, void *arg) { 745 int *ret = (int *)arg; 746 *ret = err->error; 747 748 // ALOGD("error_handler received : %d", err->error); 749 return NL_SKIP; 750 } 751