1#include <stdint.h> 2#include <stdbool.h> 3#include <net/if.h> 4#include <errno.h> 5#include "iw.h" 6 7static int no_seq_check(struct nl_msg *msg, void *arg) 8{ 9 return NL_OK; 10} 11 12struct ieee80211_beacon_channel { 13 __u16 center_freq; 14 bool no_ir; 15 bool no_ibss; 16}; 17 18static int parse_beacon_hint_chan(struct nlattr *tb, 19 struct ieee80211_beacon_channel *chan) 20{ 21 struct nlattr *tb_freq[NL80211_FREQUENCY_ATTR_MAX + 1]; 22 static struct nla_policy beacon_freq_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = { 23 [NL80211_FREQUENCY_ATTR_FREQ] = { .type = NLA_U32 }, 24 [NL80211_FREQUENCY_ATTR_NO_IR] = { .type = NLA_FLAG }, 25 [__NL80211_FREQUENCY_ATTR_NO_IBSS] = { .type = NLA_FLAG }, 26 }; 27 28 if (nla_parse_nested(tb_freq, 29 NL80211_FREQUENCY_ATTR_MAX, 30 tb, 31 beacon_freq_policy)) 32 return -EINVAL; 33 34 chan->center_freq = nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_FREQ]); 35 36 if (tb_freq[NL80211_FREQUENCY_ATTR_NO_IR]) 37 chan->no_ir = true; 38 if (tb_freq[__NL80211_FREQUENCY_ATTR_NO_IBSS]) 39 chan->no_ibss = true; 40 41 return 0; 42} 43 44static void print_frame(struct print_event_args *args, struct nlattr *attr) 45{ 46 uint8_t *frame; 47 size_t len; 48 int i; 49 char macbuf[6*3]; 50 uint16_t tmp; 51 52 if (!attr) 53 printf(" [no frame]"); 54 55 frame = nla_data(attr); 56 len = nla_len(attr); 57 58 if (len < 26) { 59 printf(" [invalid frame: "); 60 goto print_frame; 61 } 62 63 mac_addr_n2a(macbuf, frame + 10); 64 printf(" %s -> ", macbuf); 65 mac_addr_n2a(macbuf, frame + 4); 66 printf("%s", macbuf); 67 68 switch (frame[0] & 0xfc) { 69 case 0x10: /* assoc resp */ 70 case 0x30: /* reassoc resp */ 71 /* status */ 72 tmp = (frame[27] << 8) + frame[26]; 73 printf(" status: %d: %s", tmp, get_status_str(tmp)); 74 break; 75 case 0x00: /* assoc req */ 76 case 0x20: /* reassoc req */ 77 break; 78 case 0xb0: /* auth */ 79 /* status */ 80 tmp = (frame[29] << 8) + frame[28]; 81 printf(" status: %d: %s", tmp, get_status_str(tmp)); 82 break; 83 case 0xa0: /* disassoc */ 84 case 0xc0: /* deauth */ 85 /* reason */ 86 tmp = (frame[25] << 8) + frame[24]; 87 printf(" reason %d: %s", tmp, get_reason_str(tmp)); 88 break; 89 } 90 91 if (!args->frame) 92 return; 93 94 printf(" [frame:"); 95 96 print_frame: 97 for (i = 0; i < len; i++) 98 printf(" %.02x", frame[i]); 99 printf("]"); 100} 101 102static void parse_cqm_event(struct nlattr **attrs) 103{ 104 static struct nla_policy cqm_policy[NL80211_ATTR_CQM_MAX + 1] = { 105 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 }, 106 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 }, 107 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 }, 108 }; 109 struct nlattr *cqm[NL80211_ATTR_CQM_MAX + 1]; 110 struct nlattr *cqm_attr = attrs[NL80211_ATTR_CQM]; 111 112 printf("CQM event: "); 113 114 if (!cqm_attr || 115 nla_parse_nested(cqm, NL80211_ATTR_CQM_MAX, cqm_attr, cqm_policy)) { 116 printf("missing data!\n"); 117 return; 118 } 119 120 if (cqm[NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT]) { 121 enum nl80211_cqm_rssi_threshold_event rssi_event; 122 bool found_one = false; 123 124 rssi_event = nla_get_u32(cqm[NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT]); 125 126 switch (rssi_event) { 127 case NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH: 128 printf("RSSI went above threshold\n"); 129 found_one = true; 130 break; 131 case NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW: 132 printf("RSSI went below threshold\n"); 133 found_one = true; 134 break; 135 case NL80211_CQM_RSSI_BEACON_LOSS_EVENT: 136 printf("Beacon loss detected\n"); 137 found_one = true; 138 break; 139 } 140 141 if (!found_one) 142 printf("Unknown event type: %i\n", rssi_event); 143 } else if (cqm[NL80211_ATTR_CQM_PKT_LOSS_EVENT]) { 144 if (attrs[NL80211_ATTR_MAC]) { 145 uint32_t frames; 146 char buf[3*6]; 147 148 frames = nla_get_u32(cqm[NL80211_ATTR_CQM_PKT_LOSS_EVENT]); 149 mac_addr_n2a(buf, nla_data(attrs[NL80211_ATTR_MAC])); 150 printf("peer %s didn't ACK %d packets\n", buf, frames); 151 } else { 152 printf("PKT-LOSS-EVENT did not have MAC attribute!\n"); 153 } 154 } else if (cqm[NL80211_ATTR_CQM_BEACON_LOSS_EVENT]) { 155 printf("beacon loss\n"); 156 } else { 157 printf("unknown event\n"); 158 } 159} 160 161static const char * key_type_str(enum nl80211_key_type key_type) 162{ 163 static char buf[30]; 164 switch (key_type) { 165 case NL80211_KEYTYPE_GROUP: 166 return "Group"; 167 case NL80211_KEYTYPE_PAIRWISE: 168 return "Pairwise"; 169 case NL80211_KEYTYPE_PEERKEY: 170 return "PeerKey"; 171 default: 172 snprintf(buf, sizeof(buf), "unknown(%d)", key_type); 173 return buf; 174 } 175} 176 177static void parse_mic_failure(struct nlattr **attrs) 178{ 179 printf("Michael MIC failure event:"); 180 181 if (attrs[NL80211_ATTR_MAC]) { 182 char addr[3 * ETH_ALEN]; 183 mac_addr_n2a(addr, nla_data(attrs[NL80211_ATTR_MAC])); 184 printf(" source MAC address %s", addr); 185 } 186 187 if (attrs[NL80211_ATTR_KEY_SEQ] && 188 nla_len(attrs[NL80211_ATTR_KEY_SEQ]) == 6) { 189 unsigned char *seq = nla_data(attrs[NL80211_ATTR_KEY_SEQ]); 190 printf(" seq=%02x%02x%02x%02x%02x%02x", 191 seq[0], seq[1], seq[2], seq[3], seq[4], seq[5]); 192 } 193 if (attrs[NL80211_ATTR_KEY_TYPE]) { 194 enum nl80211_key_type key_type = 195 nla_get_u32(attrs[NL80211_ATTR_KEY_TYPE]); 196 printf(" Key Type %s", key_type_str(key_type)); 197 } 198 199 if (attrs[NL80211_ATTR_KEY_IDX]) { 200 __u8 key_id = nla_get_u8(attrs[NL80211_ATTR_KEY_IDX]); 201 printf(" Key Id %d", key_id); 202 } 203 204 printf("\n"); 205} 206 207static void parse_wowlan_wake_event(struct nlattr **attrs) 208{ 209 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG], 210 *tb_match[NUM_NL80211_ATTR]; 211 212 printf("WoWLAN wakeup\n"); 213 if (!attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) { 214 printf("\twakeup not due to WoWLAN\n"); 215 return; 216 } 217 218 nla_parse(tb, MAX_NL80211_WOWLAN_TRIG, 219 nla_data(attrs[NL80211_ATTR_WOWLAN_TRIGGERS]), 220 nla_len(attrs[NL80211_ATTR_WOWLAN_TRIGGERS]), NULL); 221 222 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) 223 printf("\t* was disconnected\n"); 224 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) 225 printf("\t* magic packet received\n"); 226 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) 227 printf("\t* pattern index: %u\n", 228 nla_get_u32(tb[NL80211_WOWLAN_TRIG_PKT_PATTERN])); 229 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) 230 printf("\t* GTK rekey failure\n"); 231 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) 232 printf("\t* EAP identity request\n"); 233 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) 234 printf("\t* 4-way handshake\n"); 235 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) 236 printf("\t* RF-kill released\n"); 237 if (tb[NL80211_WOWLAN_TRIG_NET_DETECT_RESULTS]) { 238 struct nlattr *match, *freq; 239 int rem_nst, rem_nst2; 240 241 printf("\t* network detected\n"); 242 nla_for_each_nested(match, 243 tb[NL80211_WOWLAN_TRIG_NET_DETECT_RESULTS], 244 rem_nst) { 245 nla_parse(tb_match, NUM_NL80211_ATTR, nla_data(match), 246 nla_len(match), 247 NULL); 248 printf("\t\tSSID: \""); 249 print_ssid_escaped(nla_len(tb_match[NL80211_ATTR_SSID]), 250 nla_data(tb_match[NL80211_ATTR_SSID])); 251 printf("\""); 252 if (tb_match[NL80211_ATTR_SCAN_FREQUENCIES]) { 253 printf(" freq(s):"); 254 nla_for_each_nested(freq, 255 tb_match[NL80211_ATTR_SCAN_FREQUENCIES], 256 rem_nst2) 257 printf(" %d", nla_get_u32(freq)); 258 } 259 printf("\n"); 260 } 261 } 262 if (tb[NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211]) { 263 uint8_t *d = nla_data(tb[NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211]); 264 int l = nla_len(tb[NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211]); 265 int i; 266 printf("\t* packet (might be truncated): "); 267 for (i = 0; i < l; i++) { 268 if (i > 0) 269 printf(":"); 270 printf("%.2x", d[i]); 271 } 272 printf("\n"); 273 } 274 if (tb[NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023]) { 275 uint8_t *d = nla_data(tb[NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023]); 276 int l = nla_len(tb[NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023]); 277 int i; 278 printf("\t* packet (might be truncated): "); 279 for (i = 0; i < l; i++) { 280 if (i > 0) 281 printf(":"); 282 printf("%.2x", d[i]); 283 } 284 printf("\n"); 285 } 286 if (tb[NL80211_WOWLAN_TRIG_WAKEUP_TCP_MATCH]) 287 printf("\t* TCP connection wakeup received\n"); 288 if (tb[NL80211_WOWLAN_TRIG_WAKEUP_TCP_CONNLOST]) 289 printf("\t* TCP connection lost\n"); 290 if (tb[NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS]) 291 printf("\t* TCP connection ran out of tokens\n"); 292} 293 294static int print_event(struct nl_msg *msg, void *arg) 295{ 296 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 297 struct nlattr *tb[NL80211_ATTR_MAX + 1], *nst; 298 struct print_event_args *args = arg; 299 char ifname[100]; 300 char macbuf[6*3]; 301 __u8 reg_type; 302 struct ieee80211_beacon_channel chan_before_beacon, chan_after_beacon; 303 __u32 wiphy_idx = 0; 304 int rem_nst; 305 __u16 status; 306 307 if (args->time || args->reltime) { 308 unsigned long long usecs, previous; 309 310 previous = 1000000ULL * args->ts.tv_sec + args->ts.tv_usec; 311 gettimeofday(&args->ts, NULL); 312 usecs = 1000000ULL * args->ts.tv_sec + args->ts.tv_usec; 313 if (args->reltime) { 314 if (!args->have_ts) { 315 usecs = 0; 316 args->have_ts = true; 317 } else 318 usecs -= previous; 319 } 320 printf("%llu.%06llu: ", usecs/1000000, usecs % 1000000); 321 } 322 323 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), 324 genlmsg_attrlen(gnlh, 0), NULL); 325 326 if (tb[NL80211_ATTR_IFINDEX] && tb[NL80211_ATTR_WIPHY]) { 327 if_indextoname(nla_get_u32(tb[NL80211_ATTR_IFINDEX]), ifname); 328 printf("%s (phy #%d): ", ifname, nla_get_u32(tb[NL80211_ATTR_WIPHY])); 329 } else if (tb[NL80211_ATTR_WDEV] && tb[NL80211_ATTR_WIPHY]) { 330 printf("wdev 0x%llx (phy #%d): ", 331 (unsigned long long)nla_get_u64(tb[NL80211_ATTR_WDEV]), 332 nla_get_u32(tb[NL80211_ATTR_WIPHY])); 333 } else if (tb[NL80211_ATTR_IFINDEX]) { 334 if_indextoname(nla_get_u32(tb[NL80211_ATTR_IFINDEX]), ifname); 335 printf("%s: ", ifname); 336 } else if (tb[NL80211_ATTR_WDEV]) { 337 printf("wdev 0x%llx: ", (unsigned long long)nla_get_u64(tb[NL80211_ATTR_WDEV])); 338 } else if (tb[NL80211_ATTR_WIPHY]) { 339 printf("phy #%d: ", nla_get_u32(tb[NL80211_ATTR_WIPHY])); 340 } 341 342 switch (gnlh->cmd) { 343 case NL80211_CMD_NEW_WIPHY: 344 printf("renamed to %s\n", nla_get_string(tb[NL80211_ATTR_WIPHY_NAME])); 345 break; 346 case NL80211_CMD_TRIGGER_SCAN: 347 printf("scan started\n"); 348 break; 349 case NL80211_CMD_NEW_SCAN_RESULTS: 350 printf("scan finished:"); 351 case NL80211_CMD_SCAN_ABORTED: 352 if (gnlh->cmd == NL80211_CMD_SCAN_ABORTED) 353 printf("scan aborted:"); 354 if (tb[NL80211_ATTR_SCAN_FREQUENCIES]) { 355 nla_for_each_nested(nst, tb[NL80211_ATTR_SCAN_FREQUENCIES], rem_nst) 356 printf(" %d", nla_get_u32(nst)); 357 printf(","); 358 } 359 if (tb[NL80211_ATTR_SCAN_SSIDS]) { 360 nla_for_each_nested(nst, tb[NL80211_ATTR_SCAN_SSIDS], rem_nst) { 361 printf(" \""); 362 print_ssid_escaped(nla_len(nst), nla_data(nst)); 363 printf("\""); 364 } 365 } 366 printf("\n"); 367 break; 368 case NL80211_CMD_START_SCHED_SCAN: 369 printf("scheduled scan started\n"); 370 break; 371 case NL80211_CMD_SCHED_SCAN_STOPPED: 372 printf("sched scan stopped\n"); 373 break; 374 case NL80211_CMD_SCHED_SCAN_RESULTS: 375 printf("got scheduled scan results\n"); 376 break; 377 case NL80211_CMD_REG_CHANGE: 378 printf("regulatory domain change: "); 379 380 reg_type = nla_get_u8(tb[NL80211_ATTR_REG_TYPE]); 381 382 switch (reg_type) { 383 case NL80211_REGDOM_TYPE_COUNTRY: 384 printf("set to %s by %s request", 385 nla_get_string(tb[NL80211_ATTR_REG_ALPHA2]), 386 reg_initiator_to_string(nla_get_u8(tb[NL80211_ATTR_REG_INITIATOR]))); 387 if (tb[NL80211_ATTR_WIPHY]) 388 printf(" on phy%d", nla_get_u32(tb[NL80211_ATTR_WIPHY])); 389 break; 390 case NL80211_REGDOM_TYPE_WORLD: 391 printf("set to world roaming by %s request", 392 reg_initiator_to_string(nla_get_u8(tb[NL80211_ATTR_REG_INITIATOR]))); 393 break; 394 case NL80211_REGDOM_TYPE_CUSTOM_WORLD: 395 printf("custom world roaming rules in place on phy%d by %s request", 396 nla_get_u32(tb[NL80211_ATTR_WIPHY]), 397 reg_initiator_to_string(nla_get_u32(tb[NL80211_ATTR_REG_INITIATOR]))); 398 break; 399 case NL80211_REGDOM_TYPE_INTERSECTION: 400 printf("intersection used due to a request made by %s", 401 reg_initiator_to_string(nla_get_u32(tb[NL80211_ATTR_REG_INITIATOR]))); 402 if (tb[NL80211_ATTR_WIPHY]) 403 printf(" on phy%d", nla_get_u32(tb[NL80211_ATTR_WIPHY])); 404 break; 405 default: 406 printf("unknown source (upgrade this utility)"); 407 break; 408 } 409 410 printf("\n"); 411 break; 412 case NL80211_CMD_REG_BEACON_HINT: 413 414 wiphy_idx = nla_get_u32(tb[NL80211_ATTR_WIPHY]); 415 416 memset(&chan_before_beacon, 0, sizeof(chan_before_beacon)); 417 memset(&chan_after_beacon, 0, sizeof(chan_after_beacon)); 418 419 if (parse_beacon_hint_chan(tb[NL80211_ATTR_FREQ_BEFORE], 420 &chan_before_beacon)) 421 break; 422 if (parse_beacon_hint_chan(tb[NL80211_ATTR_FREQ_AFTER], 423 &chan_after_beacon)) 424 break; 425 426 if (chan_before_beacon.center_freq != chan_after_beacon.center_freq) 427 break; 428 429 /* A beacon hint is sent _only_ if something _did_ change */ 430 printf("beacon hint:\n"); 431 432 printf("phy%d %d MHz [%d]:\n", 433 wiphy_idx, 434 chan_before_beacon.center_freq, 435 ieee80211_frequency_to_channel(chan_before_beacon.center_freq)); 436 437 if (chan_before_beacon.no_ir && !chan_after_beacon.no_ir) { 438 if (chan_before_beacon.no_ibss && !chan_after_beacon.no_ibss) 439 printf("\to Initiating radiation enabled\n"); 440 else 441 printf("\to active scan enabled\n"); 442 } else if (chan_before_beacon.no_ibss && !chan_after_beacon.no_ibss) { 443 printf("\to ibss enabled\n"); 444 } 445 446 break; 447 case NL80211_CMD_NEW_STATION: 448 mac_addr_n2a(macbuf, nla_data(tb[NL80211_ATTR_MAC])); 449 printf("new station %s\n", macbuf); 450 break; 451 case NL80211_CMD_DEL_STATION: 452 mac_addr_n2a(macbuf, nla_data(tb[NL80211_ATTR_MAC])); 453 printf("del station %s\n", macbuf); 454 break; 455 case NL80211_CMD_JOIN_IBSS: 456 mac_addr_n2a(macbuf, nla_data(tb[NL80211_ATTR_MAC])); 457 printf("IBSS %s joined\n", macbuf); 458 break; 459 case NL80211_CMD_AUTHENTICATE: 460 printf("auth"); 461 if (tb[NL80211_ATTR_FRAME]) 462 print_frame(args, tb[NL80211_ATTR_FRAME]); 463 else if (tb[NL80211_ATTR_TIMED_OUT]) 464 printf(": timed out"); 465 else 466 printf(": unknown event"); 467 printf("\n"); 468 break; 469 case NL80211_CMD_ASSOCIATE: 470 printf("assoc"); 471 if (tb[NL80211_ATTR_FRAME]) 472 print_frame(args, tb[NL80211_ATTR_FRAME]); 473 else if (tb[NL80211_ATTR_TIMED_OUT]) 474 printf(": timed out"); 475 else 476 printf(": unknown event"); 477 printf("\n"); 478 break; 479 case NL80211_CMD_DEAUTHENTICATE: 480 printf("deauth"); 481 print_frame(args, tb[NL80211_ATTR_FRAME]); 482 printf("\n"); 483 break; 484 case NL80211_CMD_DISASSOCIATE: 485 printf("disassoc"); 486 print_frame(args, tb[NL80211_ATTR_FRAME]); 487 printf("\n"); 488 break; 489 case NL80211_CMD_UNPROT_DEAUTHENTICATE: 490 printf("unprotected deauth"); 491 print_frame(args, tb[NL80211_ATTR_FRAME]); 492 printf("\n"); 493 break; 494 case NL80211_CMD_UNPROT_DISASSOCIATE: 495 printf("unprotected disassoc"); 496 print_frame(args, tb[NL80211_ATTR_FRAME]); 497 printf("\n"); 498 break; 499 case NL80211_CMD_CONNECT: 500 status = 0; 501 if (!tb[NL80211_ATTR_STATUS_CODE]) 502 printf("unknown connect status"); 503 else if (nla_get_u16(tb[NL80211_ATTR_STATUS_CODE]) == 0) 504 printf("connected"); 505 else { 506 status = nla_get_u16(tb[NL80211_ATTR_STATUS_CODE]); 507 printf("failed to connect"); 508 } 509 if (tb[NL80211_ATTR_MAC]) { 510 mac_addr_n2a(macbuf, nla_data(tb[NL80211_ATTR_MAC])); 511 printf(" to %s", macbuf); 512 } 513 if (status) 514 printf(", status: %d: %s", status, get_status_str(status)); 515 printf("\n"); 516 break; 517 case NL80211_CMD_ROAM: 518 printf("roamed"); 519 if (tb[NL80211_ATTR_MAC]) { 520 mac_addr_n2a(macbuf, nla_data(tb[NL80211_ATTR_MAC])); 521 printf(" to %s", macbuf); 522 } 523 printf("\n"); 524 break; 525 case NL80211_CMD_DISCONNECT: 526 printf("disconnected"); 527 if (tb[NL80211_ATTR_DISCONNECTED_BY_AP]) 528 printf(" (by AP)"); 529 else 530 printf(" (local request)"); 531 if (tb[NL80211_ATTR_REASON_CODE]) 532 printf(" reason: %d: %s", nla_get_u16(tb[NL80211_ATTR_REASON_CODE]), 533 get_reason_str(nla_get_u16(tb[NL80211_ATTR_REASON_CODE]))); 534 printf("\n"); 535 break; 536 case NL80211_CMD_REMAIN_ON_CHANNEL: 537 printf("remain on freq %d (%dms, cookie %llx)\n", 538 nla_get_u32(tb[NL80211_ATTR_WIPHY_FREQ]), 539 nla_get_u32(tb[NL80211_ATTR_DURATION]), 540 (unsigned long long)nla_get_u64(tb[NL80211_ATTR_COOKIE])); 541 break; 542 case NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL: 543 printf("done with remain on freq %d (cookie %llx)\n", 544 nla_get_u32(tb[NL80211_ATTR_WIPHY_FREQ]), 545 (unsigned long long)nla_get_u64(tb[NL80211_ATTR_COOKIE])); 546 break; 547 case NL80211_CMD_NOTIFY_CQM: 548 parse_cqm_event(tb); 549 break; 550 case NL80211_CMD_MICHAEL_MIC_FAILURE: 551 parse_mic_failure(tb); 552 break; 553 case NL80211_CMD_FRAME_TX_STATUS: 554 printf("mgmt TX status (cookie %llx): %s\n", 555 (unsigned long long)nla_get_u64(tb[NL80211_ATTR_COOKIE]), 556 tb[NL80211_ATTR_ACK] ? "acked" : "no ack"); 557 break; 558 case NL80211_CMD_PMKSA_CANDIDATE: 559 printf("PMKSA candidate found\n"); 560 break; 561 case NL80211_CMD_SET_WOWLAN: 562 parse_wowlan_wake_event(tb); 563 break; 564 case NL80211_CMD_PROBE_CLIENT: 565 if (tb[NL80211_ATTR_MAC]) 566 mac_addr_n2a(macbuf, nla_data(tb[NL80211_ATTR_MAC])); 567 else 568 strcpy(macbuf, "??"); 569 printf("probe client %s (cookie %llx): %s\n", 570 macbuf, 571 (unsigned long long)nla_get_u64(tb[NL80211_ATTR_COOKIE]), 572 tb[NL80211_ATTR_ACK] ? "acked" : "no ack"); 573 break; 574 case NL80211_CMD_VENDOR: 575 printf("vendor event %.6x:%d\n", 576 nla_get_u32(tb[NL80211_ATTR_VENDOR_ID]), 577 nla_get_u32(tb[NL80211_ATTR_VENDOR_SUBCMD])); 578 if (args->frame && tb[NL80211_ATTR_VENDOR_DATA]) 579 iw_hexdump("vendor event", 580 nla_data(tb[NL80211_ATTR_VENDOR_DATA]), 581 nla_len(tb[NL80211_ATTR_VENDOR_DATA])); 582 break; 583 case NL80211_CMD_RADAR_DETECT: 584 printf("radar event "); 585 if (tb[NL80211_ATTR_RADAR_EVENT]) { 586 switch (nla_get_u32(tb[NL80211_ATTR_RADAR_EVENT])) { 587 case NL80211_RADAR_DETECTED: 588 printf("(radar detected)"); 589 break; 590 case NL80211_RADAR_CAC_FINISHED: 591 printf("(cac finished)"); 592 break; 593 case NL80211_RADAR_CAC_ABORTED: 594 printf("(cac aborted)"); 595 break; 596 case NL80211_RADAR_NOP_FINISHED: 597 printf("(nop finished)"); 598 break; 599 default: 600 printf("(unknown)"); 601 break; 602 }; 603 } else { 604 printf("(unknown)"); 605 } 606 printf("\n"); 607 break; 608 case NL80211_CMD_DEL_WIPHY: 609 printf("delete wiphy\n"); 610 break; 611 default: 612 printf("unknown event %d (%s)\n", 613 gnlh->cmd, command_name(gnlh->cmd)); 614 break; 615 } 616 617 fflush(stdout); 618 return NL_SKIP; 619} 620 621struct wait_event { 622 int n_cmds; 623 const __u32 *cmds; 624 __u32 cmd; 625 struct print_event_args *pargs; 626}; 627 628static int wait_event(struct nl_msg *msg, void *arg) 629{ 630 struct wait_event *wait = arg; 631 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); 632 int i; 633 634 for (i = 0; i < wait->n_cmds; i++) { 635 if (gnlh->cmd == wait->cmds[i]) { 636 wait->cmd = gnlh->cmd; 637 if (wait->pargs) 638 print_event(msg, wait->pargs); 639 } 640 } 641 642 return NL_SKIP; 643} 644 645int __prepare_listen_events(struct nl80211_state *state) 646{ 647 int mcid, ret; 648 649 /* Configuration multicast group */ 650 mcid = nl_get_multicast_id(state->nl_sock, "nl80211", "config"); 651 if (mcid < 0) 652 return mcid; 653 654 ret = nl_socket_add_membership(state->nl_sock, mcid); 655 if (ret) 656 return ret; 657 658 /* Scan multicast group */ 659 mcid = nl_get_multicast_id(state->nl_sock, "nl80211", "scan"); 660 if (mcid >= 0) { 661 ret = nl_socket_add_membership(state->nl_sock, mcid); 662 if (ret) 663 return ret; 664 } 665 666 /* Regulatory multicast group */ 667 mcid = nl_get_multicast_id(state->nl_sock, "nl80211", "regulatory"); 668 if (mcid >= 0) { 669 ret = nl_socket_add_membership(state->nl_sock, mcid); 670 if (ret) 671 return ret; 672 } 673 674 /* MLME multicast group */ 675 mcid = nl_get_multicast_id(state->nl_sock, "nl80211", "mlme"); 676 if (mcid >= 0) { 677 ret = nl_socket_add_membership(state->nl_sock, mcid); 678 if (ret) 679 return ret; 680 } 681 682 mcid = nl_get_multicast_id(state->nl_sock, "nl80211", "vendor"); 683 if (mcid >= 0) { 684 ret = nl_socket_add_membership(state->nl_sock, mcid); 685 if (ret) 686 return ret; 687 } 688 689 return 0; 690} 691 692__u32 __do_listen_events(struct nl80211_state *state, 693 const int n_waits, const __u32 *waits, 694 struct print_event_args *args) 695{ 696 struct nl_cb *cb = nl_cb_alloc(iw_debug ? NL_CB_DEBUG : NL_CB_DEFAULT); 697 struct wait_event wait_ev; 698 699 if (!cb) { 700 fprintf(stderr, "failed to allocate netlink callbacks\n"); 701 return -ENOMEM; 702 } 703 704 /* no sequence checking for multicast messages */ 705 nl_cb_set(cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, no_seq_check, NULL); 706 707 if (n_waits && waits) { 708 wait_ev.cmds = waits; 709 wait_ev.n_cmds = n_waits; 710 wait_ev.pargs = args; 711 nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM, wait_event, &wait_ev); 712 } else 713 nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM, print_event, args); 714 715 wait_ev.cmd = 0; 716 717 while (!wait_ev.cmd) 718 nl_recvmsgs(state->nl_sock, cb); 719 720 nl_cb_put(cb); 721 722 return wait_ev.cmd; 723} 724 725__u32 listen_events(struct nl80211_state *state, 726 const int n_waits, const __u32 *waits) 727{ 728 int ret; 729 730 ret = __prepare_listen_events(state); 731 if (ret) 732 return ret; 733 734 return __do_listen_events(state, n_waits, waits, NULL); 735} 736 737static int print_events(struct nl80211_state *state, 738 struct nl_cb *cb, 739 struct nl_msg *msg, 740 int argc, char **argv, 741 enum id_input id) 742{ 743 struct print_event_args args; 744 int ret; 745 746 memset(&args, 0, sizeof(args)); 747 748 argc--; 749 argv++; 750 751 while (argc > 0) { 752 if (strcmp(argv[0], "-f") == 0) 753 args.frame = true; 754 else if (strcmp(argv[0], "-t") == 0) 755 args.time = true; 756 else if (strcmp(argv[0], "-r") == 0) 757 args.reltime = true; 758 else 759 return 1; 760 argc--; 761 argv++; 762 } 763 764 if (args.time && args.reltime) 765 return 1; 766 767 if (argc) 768 return 1; 769 770 ret = __prepare_listen_events(state); 771 if (ret) 772 return ret; 773 774 return __do_listen_events(state, 0, NULL, &args); 775} 776TOPLEVEL(event, "[-t] [-r] [-f]", 0, 0, CIB_NONE, print_events, 777 "Monitor events from the kernel.\n" 778 "-t - print timestamp\n" 779 "-r - print relative timstamp\n" 780 "-f - print full frame for auth/assoc etc."); 781