7 static int no_seq_check(struct nl_msg
*msg
, void *arg
)
12 struct ieee80211_beacon_channel
{
18 static int parse_beacon_hint_chan(struct nlattr
*tb
,
19 struct ieee80211_beacon_channel
*chan
)
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_PASSIVE_SCAN
] = { .type
= NLA_FLAG
},
25 [NL80211_FREQUENCY_ATTR_NO_IBSS
] = { .type
= NLA_FLAG
},
28 if (nla_parse_nested(tb_freq
,
29 NL80211_FREQUENCY_ATTR_MAX
,
34 chan
->center_freq
= nla_get_u32(tb_freq
[NL80211_FREQUENCY_ATTR_FREQ
]);
36 if (tb_freq
[NL80211_FREQUENCY_ATTR_PASSIVE_SCAN
])
37 chan
->passive_scan
= true;
38 if (tb_freq
[NL80211_FREQUENCY_ATTR_NO_IBSS
])
44 static void print_frame(struct print_event_args
*args
, struct nlattr
*attr
)
53 printf(" [no frame]");
55 frame
= nla_data(attr
);
59 printf(" [invalid frame: ");
63 mac_addr_n2a(macbuf
, frame
+ 10);
64 printf(" %s -> ", macbuf
);
65 mac_addr_n2a(macbuf
, frame
+ 4);
68 switch (frame
[0] & 0xfc) {
69 case 0x10: /* assoc resp */
70 case 0x30: /* reassoc resp */
72 tmp
= (frame
[27] << 8) + frame
[26];
73 printf(" status: %d: %s", tmp
, get_status_str(tmp
));
75 case 0x00: /* assoc req */
76 case 0x20: /* reassoc req */
80 tmp
= (frame
[29] << 8) + frame
[28];
81 printf(" status: %d: %s", tmp
, get_status_str(tmp
));
84 case 0xa0: /* disassoc */
85 case 0xc0: /* deauth */
87 tmp
= (frame
[25] << 8) + frame
[24];
88 printf(" reason %d: %s", tmp
, get_reason_str(tmp
));
98 for (i
= 0; i
< len
; i
++)
99 printf(" %.02x", frame
[i
]);
103 static void parse_cqm_event(struct nlattr
**attrs
)
105 static struct nla_policy cqm_policy
[NL80211_ATTR_CQM_MAX
+ 1] = {
106 [NL80211_ATTR_CQM_RSSI_THOLD
] = { .type
= NLA_U32
},
107 [NL80211_ATTR_CQM_RSSI_HYST
] = { .type
= NLA_U32
},
108 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT
] = { .type
= NLA_U32
},
110 struct nlattr
*cqm
[NL80211_ATTR_CQM_MAX
+ 1];
111 struct nlattr
*cqm_attr
= attrs
[NL80211_ATTR_CQM
];
113 printf("connection quality monitor event: ");
116 nla_parse_nested(cqm
, NL80211_ATTR_CQM_MAX
, cqm_attr
, cqm_policy
)) {
117 printf("missing data!\n");
121 if (cqm
[NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT
]) {
122 enum nl80211_cqm_rssi_threshold_event rssi_event
;
123 rssi_event
= nla_get_u32(cqm
[NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT
]);
124 if (rssi_event
== NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH
)
125 printf("RSSI went above threshold\n");
127 printf("RSSI went below threshold\n");
128 } else if (cqm
[NL80211_ATTR_CQM_PKT_LOSS_EVENT
] &&
129 attrs
[NL80211_ATTR_MAC
]) {
133 frames
= nla_get_u32(cqm
[NL80211_ATTR_CQM_PKT_LOSS_EVENT
]);
134 mac_addr_n2a(buf
, nla_data(attrs
[NL80211_ATTR_MAC
]));
135 printf("peer %s didn't ACK %d packets\n", buf
, frames
);
137 printf("unknown event\n");
140 static const char * key_type_str(enum nl80211_key_type key_type
)
144 case NL80211_KEYTYPE_GROUP
:
146 case NL80211_KEYTYPE_PAIRWISE
:
148 case NL80211_KEYTYPE_PEERKEY
:
151 snprintf(buf
, sizeof(buf
), "unknown(%d)", key_type
);
156 static void parse_mic_failure(struct nlattr
**attrs
)
158 printf("Michael MIC failure event:");
160 if (attrs
[NL80211_ATTR_MAC
]) {
161 char addr
[3 * ETH_ALEN
];
162 mac_addr_n2a(addr
, nla_data(attrs
[NL80211_ATTR_MAC
]));
163 printf(" source MAC address %s", addr
);
166 if (attrs
[NL80211_ATTR_KEY_SEQ
] &&
167 nla_len(attrs
[NL80211_ATTR_KEY_SEQ
]) == 6) {
168 unsigned char *seq
= nla_data(attrs
[NL80211_ATTR_KEY_SEQ
]);
169 printf(" seq=%02x%02x%02x%02x%02x%02x",
170 seq
[0], seq
[1], seq
[2], seq
[3], seq
[4], seq
[5]);
172 if (attrs
[NL80211_ATTR_KEY_TYPE
]) {
173 enum nl80211_key_type key_type
=
174 nla_get_u32(attrs
[NL80211_ATTR_KEY_TYPE
]);
175 printf(" Key Type %s", key_type_str(key_type
));
178 if (attrs
[NL80211_ATTR_KEY_IDX
]) {
179 __u8 key_id
= nla_get_u8(attrs
[NL80211_ATTR_KEY_IDX
]);
180 printf(" Key Id %d", key_id
);
186 static int print_event(struct nl_msg
*msg
, void *arg
)
188 struct genlmsghdr
*gnlh
= nlmsg_data(nlmsg_hdr(msg
));
189 struct nlattr
*tb
[NL80211_ATTR_MAX
+ 1], *nst
;
190 struct print_event_args
*args
= arg
;
194 struct ieee80211_beacon_channel chan_before_beacon
, chan_after_beacon
;
199 if (args
->time
|| args
->reltime
) {
200 unsigned long long usecs
, previous
;
202 previous
= 1000000ULL * args
->ts
.tv_sec
+ args
->ts
.tv_usec
;
203 gettimeofday(&args
->ts
, NULL
);
204 usecs
= 1000000ULL * args
->ts
.tv_sec
+ args
->ts
.tv_usec
;
206 if (!args
->have_ts
) {
208 args
->have_ts
= true;
212 printf("%llu.%06llu: ", usecs
/1000000, usecs
% 1000000);
215 nla_parse(tb
, NL80211_ATTR_MAX
, genlmsg_attrdata(gnlh
, 0),
216 genlmsg_attrlen(gnlh
, 0), NULL
);
218 if (tb
[NL80211_ATTR_IFINDEX
] && tb
[NL80211_ATTR_WIPHY
]) {
219 if_indextoname(nla_get_u32(tb
[NL80211_ATTR_IFINDEX
]), ifname
);
220 printf("%s (phy #%d): ", ifname
, nla_get_u32(tb
[NL80211_ATTR_WIPHY
]));
221 } else if (tb
[NL80211_ATTR_IFINDEX
]) {
222 if_indextoname(nla_get_u32(tb
[NL80211_ATTR_IFINDEX
]), ifname
);
223 printf("%s: ", ifname
);
224 } else if (tb
[NL80211_ATTR_WIPHY
]) {
225 printf("phy #%d: ", nla_get_u32(tb
[NL80211_ATTR_WIPHY
]));
229 case NL80211_CMD_NEW_WIPHY
:
230 printf("renamed to %s\n", nla_get_string(tb
[NL80211_ATTR_WIPHY_NAME
]));
232 case NL80211_CMD_TRIGGER_SCAN
:
233 printf("scan started\n");
235 case NL80211_CMD_NEW_SCAN_RESULTS
:
236 printf("scan finished:");
237 case NL80211_CMD_SCAN_ABORTED
:
238 if (gnlh
->cmd
== NL80211_CMD_SCAN_ABORTED
)
239 printf("scan aborted:");
240 if (tb
[NL80211_ATTR_SCAN_FREQUENCIES
]) {
241 nla_for_each_nested(nst
, tb
[NL80211_ATTR_SCAN_FREQUENCIES
], rem_nst
)
242 printf(" %d", nla_get_u32(nst
));
245 if (tb
[NL80211_ATTR_SCAN_SSIDS
]) {
246 nla_for_each_nested(nst
, tb
[NL80211_ATTR_SCAN_SSIDS
], rem_nst
) {
248 print_ssid_escaped(nla_len(nst
), nla_data(nst
));
254 case NL80211_CMD_REG_CHANGE
:
255 printf("regulatory domain change: ");
257 reg_type
= nla_get_u8(tb
[NL80211_ATTR_REG_TYPE
]);
260 case NL80211_REGDOM_TYPE_COUNTRY
:
261 printf("set to %s by %s request",
262 nla_get_string(tb
[NL80211_ATTR_REG_ALPHA2
]),
263 reg_initiator_to_string(nla_get_u8(tb
[NL80211_ATTR_REG_INITIATOR
])));
264 if (tb
[NL80211_ATTR_WIPHY
])
265 printf(" on phy%d", nla_get_u32(tb
[NL80211_ATTR_WIPHY
]));
267 case NL80211_REGDOM_TYPE_WORLD
:
268 printf("set to world roaming by %s request",
269 reg_initiator_to_string(nla_get_u8(tb
[NL80211_ATTR_REG_INITIATOR
])));
271 case NL80211_REGDOM_TYPE_CUSTOM_WORLD
:
272 printf("custom world roaming rules in place on phy%d by %s request",
273 nla_get_u32(tb
[NL80211_ATTR_WIPHY
]),
274 reg_initiator_to_string(nla_get_u32(tb
[NL80211_ATTR_REG_INITIATOR
])));
276 case NL80211_REGDOM_TYPE_INTERSECTION
:
277 printf("intersection used due to a request made by %s",
278 reg_initiator_to_string(nla_get_u32(tb
[NL80211_ATTR_REG_INITIATOR
])));
279 if (tb
[NL80211_ATTR_WIPHY
])
280 printf(" on phy%d", nla_get_u32(tb
[NL80211_ATTR_WIPHY
]));
283 printf("unknown source (upgrade this utility)");
289 case NL80211_CMD_REG_BEACON_HINT
:
291 wiphy_idx
= nla_get_u32(tb
[NL80211_ATTR_WIPHY
]);
293 memset(&chan_before_beacon
, 0, sizeof(chan_before_beacon
));
294 memset(&chan_after_beacon
, 0, sizeof(chan_after_beacon
));
296 if (parse_beacon_hint_chan(tb
[NL80211_ATTR_FREQ_BEFORE
],
297 &chan_before_beacon
))
299 if (parse_beacon_hint_chan(tb
[NL80211_ATTR_FREQ_AFTER
],
303 if (chan_before_beacon
.center_freq
!= chan_after_beacon
.center_freq
)
306 /* A beacon hint is sent _only_ if something _did_ change */
307 printf("beacon hint:\n");
309 printf("phy%d %d MHz [%d]:\n",
311 chan_before_beacon
.center_freq
,
312 ieee80211_frequency_to_channel(chan_before_beacon
.center_freq
));
314 if (chan_before_beacon
.passive_scan
&& !chan_after_beacon
.passive_scan
)
315 printf("\to active scanning enabled\n");
316 if (chan_before_beacon
.no_ibss
&& !chan_after_beacon
.no_ibss
)
317 printf("\to beaconing enabled\n");
320 case NL80211_CMD_NEW_STATION
:
321 mac_addr_n2a(macbuf
, nla_data(tb
[NL80211_ATTR_MAC
]));
322 printf("new station %s\n", macbuf
);
324 case NL80211_CMD_JOIN_IBSS
:
325 mac_addr_n2a(macbuf
, nla_data(tb
[NL80211_ATTR_MAC
]));
326 printf("IBSS %s joined\n", macbuf
);
328 case NL80211_CMD_AUTHENTICATE
:
330 if (tb
[NL80211_ATTR_FRAME
])
331 print_frame(args
, tb
[NL80211_ATTR_FRAME
]);
332 else if (tb
[NL80211_ATTR_TIMED_OUT
])
333 printf(": timed out");
335 printf(": unknown event");
338 case NL80211_CMD_ASSOCIATE
:
340 if (tb
[NL80211_ATTR_FRAME
])
341 print_frame(args
, tb
[NL80211_ATTR_FRAME
]);
342 else if (tb
[NL80211_ATTR_TIMED_OUT
])
343 printf(": timed out");
345 printf(": unknown event");
348 case NL80211_CMD_DEAUTHENTICATE
:
350 print_frame(args
, tb
[NL80211_ATTR_FRAME
]);
353 case NL80211_CMD_DISASSOCIATE
:
355 print_frame(args
, tb
[NL80211_ATTR_FRAME
]);
358 case NL80211_CMD_UNPROT_DEAUTHENTICATE
:
359 printf("unprotected deauth");
360 print_frame(args
, tb
[NL80211_ATTR_FRAME
]);
363 case NL80211_CMD_UNPROT_DISASSOCIATE
:
364 printf("unprotected disassoc");
365 print_frame(args
, tb
[NL80211_ATTR_FRAME
]);
368 case NL80211_CMD_CONNECT
:
370 if (!tb
[NL80211_ATTR_STATUS_CODE
])
371 printf("unknown connect status");
372 else if (nla_get_u16(tb
[NL80211_ATTR_STATUS_CODE
]) == 0)
375 status
= nla_get_u16(tb
[NL80211_ATTR_STATUS_CODE
]);
376 printf("failed to connect");
378 if (tb
[NL80211_ATTR_MAC
]) {
379 mac_addr_n2a(macbuf
, nla_data(tb
[NL80211_ATTR_MAC
]));
380 printf(" to %s", macbuf
);
383 printf(", status: %d: %s", status
, get_status_str(status
));
386 case NL80211_CMD_ROAM
:
388 if (tb
[NL80211_ATTR_MAC
]) {
389 mac_addr_n2a(macbuf
, nla_data(tb
[NL80211_ATTR_MAC
]));
390 printf(" to %s", macbuf
);
394 case NL80211_CMD_DISCONNECT
:
395 printf("disconnected");
396 if (tb
[NL80211_ATTR_DISCONNECTED_BY_AP
])
399 printf(" (local request)");
400 if (tb
[NL80211_ATTR_REASON_CODE
])
401 printf(" reason: %d: %s", nla_get_u16(tb
[NL80211_ATTR_REASON_CODE
]),
402 get_reason_str(nla_get_u16(tb
[NL80211_ATTR_REASON_CODE
])));
405 case NL80211_CMD_REMAIN_ON_CHANNEL
:
406 printf("remain on freq %d (%dms, cookie %llx)\n",
407 nla_get_u32(tb
[NL80211_ATTR_WIPHY_FREQ
]),
408 nla_get_u32(tb
[NL80211_ATTR_DURATION
]),
409 (unsigned long long)nla_get_u64(tb
[NL80211_ATTR_COOKIE
]));
411 case NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL
:
412 printf("done with remain on freq %d (cookie %llx)\n",
413 nla_get_u32(tb
[NL80211_ATTR_WIPHY_FREQ
]),
414 (unsigned long long)nla_get_u64(tb
[NL80211_ATTR_COOKIE
]));
416 case NL80211_CMD_NOTIFY_CQM
:
419 case NL80211_CMD_MICHAEL_MIC_FAILURE
:
420 parse_mic_failure(tb
);
422 case NL80211_CMD_FRAME_TX_STATUS
:
423 printf("mgmt TX status (cookie %llx): %s\n",
424 (unsigned long long)nla_get_u64(tb
[NL80211_ATTR_COOKIE
]),
425 tb
[NL80211_ATTR_ACK
] ? "acked" : "no ack");
428 printf("unknown event %d\n", gnlh
->cmd
);
440 struct print_event_args
*pargs
;
443 static int wait_event(struct nl_msg
*msg
, void *arg
)
445 struct wait_event
*wait
= arg
;
446 struct genlmsghdr
*gnlh
= nlmsg_data(nlmsg_hdr(msg
));
449 for (i
= 0; i
< wait
->n_cmds
; i
++) {
450 if (gnlh
->cmd
== wait
->cmds
[i
]) {
451 wait
->cmd
= gnlh
->cmd
;
453 print_event(msg
, wait
->pargs
);
460 int __prepare_listen_events(struct nl80211_state
*state
)
464 /* Configuration multicast group */
465 mcid
= nl_get_multicast_id(state
->nl_sock
, "nl80211", "config");
469 ret
= nl_socket_add_membership(state
->nl_sock
, mcid
);
473 /* Scan multicast group */
474 mcid
= nl_get_multicast_id(state
->nl_sock
, "nl80211", "scan");
476 ret
= nl_socket_add_membership(state
->nl_sock
, mcid
);
481 /* Regulatory multicast group */
482 mcid
= nl_get_multicast_id(state
->nl_sock
, "nl80211", "regulatory");
484 ret
= nl_socket_add_membership(state
->nl_sock
, mcid
);
489 /* MLME multicast group */
490 mcid
= nl_get_multicast_id(state
->nl_sock
, "nl80211", "mlme");
492 ret
= nl_socket_add_membership(state
->nl_sock
, mcid
);
500 __u32
__do_listen_events(struct nl80211_state
*state
,
501 const int n_waits
, const __u32
*waits
,
502 struct print_event_args
*args
)
504 struct nl_cb
*cb
= nl_cb_alloc(iw_debug
? NL_CB_DEBUG
: NL_CB_DEFAULT
);
505 struct wait_event wait_ev
;
508 fprintf(stderr
, "failed to allocate netlink callbacks\n");
512 /* no sequence checking for multicast messages */
513 nl_cb_set(cb
, NL_CB_SEQ_CHECK
, NL_CB_CUSTOM
, no_seq_check
, NULL
);
515 if (n_waits
&& waits
) {
516 wait_ev
.cmds
= waits
;
517 wait_ev
.n_cmds
= n_waits
;
518 wait_ev
.pargs
= args
;
519 nl_cb_set(cb
, NL_CB_VALID
, NL_CB_CUSTOM
, wait_event
, &wait_ev
);
521 nl_cb_set(cb
, NL_CB_VALID
, NL_CB_CUSTOM
, print_event
, args
);
526 nl_recvmsgs(state
->nl_sock
, cb
);
533 __u32
listen_events(struct nl80211_state
*state
,
534 const int n_waits
, const __u32
*waits
)
538 ret
= __prepare_listen_events(state
);
542 return __do_listen_events(state
, n_waits
, waits
, NULL
);
545 static int print_events(struct nl80211_state
*state
,
548 int argc
, char **argv
)
550 struct print_event_args args
;
553 memset(&args
, 0, sizeof(args
));
559 if (strcmp(argv
[0], "-f") == 0)
561 else if (strcmp(argv
[0], "-t") == 0)
563 else if (strcmp(argv
[0], "-r") == 0)
571 if (args
.time
&& args
.reltime
)
577 ret
= __prepare_listen_events(state
);
581 return __do_listen_events(state
, 0, NULL
, &args
);
583 TOPLEVEL(event
, "[-t] [-r] [-f]", 0, 0, CIB_NONE
, print_events
,
584 "Monitor events from the kernel.\n"
585 "-t - print timestamp\n"
586 "-r - print relative timstamp\n"
587 "-f - print full frame for auth/assoc etc.");