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
*tb
)
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];
112 printf("connection quality monitor event: ");
114 if (!tb
|| nla_parse_nested(cqm
, NL80211_ATTR_CQM_MAX
, tb
, cqm_policy
)) {
115 printf("missing data!\n");
119 if (cqm
[NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT
]) {
120 enum nl80211_cqm_rssi_threshold_event rssi_event
;
121 rssi_event
= nla_get_u32(cqm
[NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT
]);
122 if (rssi_event
== NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH
)
123 printf("RSSI went above threshold");
125 printf("RSSI went below threshold");
131 static int print_event(struct nl_msg
*msg
, void *arg
)
133 #define PARSE_BEACON_CHAN(_attr, _chan) do { \
134 r = parse_beacon_hint_chan(tb[_attr], \
139 struct genlmsghdr
*gnlh
= nlmsg_data(nlmsg_hdr(msg
));
140 struct nlattr
*tb
[NL80211_ATTR_MAX
+ 1], *nst
;
141 struct print_event_args
*args
= arg
;
145 struct ieee80211_beacon_channel chan_before_beacon
, chan_after_beacon
;
153 gettimeofday(&tv
, NULL
);
154 printf("%ld.%06u: ", (long) tv
.tv_sec
, (unsigned int) tv
.tv_usec
);
157 nla_parse(tb
, NL80211_ATTR_MAX
, genlmsg_attrdata(gnlh
, 0),
158 genlmsg_attrlen(gnlh
, 0), NULL
);
160 if (tb
[NL80211_ATTR_IFINDEX
] && tb
[NL80211_ATTR_WIPHY
]) {
161 if_indextoname(nla_get_u32(tb
[NL80211_ATTR_IFINDEX
]), ifname
);
162 printf("%s (phy #%d): ", ifname
, nla_get_u32(tb
[NL80211_ATTR_WIPHY
]));
163 } else if (tb
[NL80211_ATTR_IFINDEX
]) {
164 if_indextoname(nla_get_u32(tb
[NL80211_ATTR_IFINDEX
]), ifname
);
165 printf("%s: ", ifname
);
166 } else if (tb
[NL80211_ATTR_WIPHY
]) {
167 printf("phy #%d: ", nla_get_u32(tb
[NL80211_ATTR_WIPHY
]));
171 case NL80211_CMD_NEW_WIPHY
:
172 printf("renamed to %s\n", nla_get_string(tb
[NL80211_ATTR_WIPHY_NAME
]));
174 case NL80211_CMD_TRIGGER_SCAN
:
175 printf("scan started\n");
177 case NL80211_CMD_NEW_SCAN_RESULTS
:
178 printf("scan finished:");
179 case NL80211_CMD_SCAN_ABORTED
:
180 if (gnlh
->cmd
== NL80211_CMD_SCAN_ABORTED
)
181 printf("scan aborted:");
182 if (tb
[NL80211_ATTR_SCAN_FREQUENCIES
]) {
183 nla_for_each_nested(nst
, tb
[NL80211_ATTR_SCAN_FREQUENCIES
], rem_nst
)
184 printf(" %d", nla_get_u32(nst
));
187 if (tb
[NL80211_ATTR_SCAN_SSIDS
]) {
188 nla_for_each_nested(nst
, tb
[NL80211_ATTR_SCAN_SSIDS
], rem_nst
) {
190 print_ssid_escaped(nla_len(nst
), nla_data(nst
));
196 case NL80211_CMD_REG_CHANGE
:
197 printf("regulatory domain change: ");
199 reg_type
= nla_get_u8(tb
[NL80211_ATTR_REG_TYPE
]);
202 case NL80211_REGDOM_TYPE_COUNTRY
:
203 printf("set to %s by %s request",
204 nla_get_string(tb
[NL80211_ATTR_REG_ALPHA2
]),
205 reg_initiator_to_string(nla_get_u8(tb
[NL80211_ATTR_REG_INITIATOR
])));
206 if (tb
[NL80211_ATTR_WIPHY
])
207 printf(" on phy%d", nla_get_u32(tb
[NL80211_ATTR_WIPHY
]));
209 case NL80211_REGDOM_TYPE_WORLD
:
210 printf("set to world roaming by %s request",
211 reg_initiator_to_string(nla_get_u8(tb
[NL80211_ATTR_REG_INITIATOR
])));
213 case NL80211_REGDOM_TYPE_CUSTOM_WORLD
:
214 printf("custom world roaming rules in place on phy%d by %s request",
215 nla_get_u32(tb
[NL80211_ATTR_WIPHY
]),
216 reg_initiator_to_string(nla_get_u32(tb
[NL80211_ATTR_REG_INITIATOR
])));
218 case NL80211_REGDOM_TYPE_INTERSECTION
:
219 printf("intersection used due to a request made by %s",
220 reg_initiator_to_string(nla_get_u32(tb
[NL80211_ATTR_REG_INITIATOR
])));
221 if (tb
[NL80211_ATTR_WIPHY
])
222 printf(" on phy%d", nla_get_u32(tb
[NL80211_ATTR_WIPHY
]));
225 printf("unknown source (upgrade this utility)");
231 case NL80211_CMD_REG_BEACON_HINT
:
233 wiphy_idx
= nla_get_u32(tb
[NL80211_ATTR_WIPHY
]);
235 memset(&chan_before_beacon
, 0, sizeof(chan_before_beacon
));
236 memset(&chan_after_beacon
, 0, sizeof(chan_after_beacon
));
238 PARSE_BEACON_CHAN(NL80211_ATTR_FREQ_BEFORE
, chan_before_beacon
);
239 PARSE_BEACON_CHAN(NL80211_ATTR_FREQ_AFTER
, chan_after_beacon
);
241 if (chan_before_beacon
.center_freq
!= chan_after_beacon
.center_freq
)
244 /* A beacon hint is sent _only_ if something _did_ change */
245 printf("beacon hint:\n");
247 printf("phy%d %d MHz [%d]:\n",
249 chan_before_beacon
.center_freq
,
250 ieee80211_frequency_to_channel(chan_before_beacon
.center_freq
));
252 if (chan_before_beacon
.passive_scan
&& !chan_after_beacon
.passive_scan
)
253 printf("\to active scanning enabled\n");
254 if (chan_before_beacon
.no_ibss
&& !chan_after_beacon
.no_ibss
)
255 printf("\to beaconing enabled\n");
258 case NL80211_CMD_NEW_STATION
:
259 mac_addr_n2a(macbuf
, nla_data(tb
[NL80211_ATTR_MAC
]));
260 printf("new station %s\n", macbuf
);
262 case NL80211_CMD_JOIN_IBSS
:
263 mac_addr_n2a(macbuf
, nla_data(tb
[NL80211_ATTR_MAC
]));
264 printf("IBSS %s joined\n", macbuf
);
266 case NL80211_CMD_AUTHENTICATE
:
268 if (tb
[NL80211_ATTR_FRAME
])
269 print_frame(args
, tb
[NL80211_ATTR_FRAME
]);
270 else if (tb
[NL80211_ATTR_TIMED_OUT
])
271 printf(": timed out");
273 printf(": unknown event");
276 case NL80211_CMD_ASSOCIATE
:
278 if (tb
[NL80211_ATTR_FRAME
])
279 print_frame(args
, tb
[NL80211_ATTR_FRAME
]);
280 else if (tb
[NL80211_ATTR_TIMED_OUT
])
281 printf(": timed out");
283 printf(": unknown event");
286 case NL80211_CMD_DEAUTHENTICATE
:
288 print_frame(args
, tb
[NL80211_ATTR_FRAME
]);
291 case NL80211_CMD_DISASSOCIATE
:
293 print_frame(args
, tb
[NL80211_ATTR_FRAME
]);
296 case NL80211_CMD_CONNECT
:
298 if (!tb
[NL80211_ATTR_STATUS_CODE
])
299 printf("unknown connect status");
300 else if (nla_get_u16(tb
[NL80211_ATTR_STATUS_CODE
]) == 0)
303 status
= nla_get_u16(tb
[NL80211_ATTR_STATUS_CODE
]);
304 printf("failed to connect");
306 if (tb
[NL80211_ATTR_MAC
]) {
307 mac_addr_n2a(macbuf
, nla_data(tb
[NL80211_ATTR_MAC
]));
308 printf(" to %s", macbuf
);
311 printf(", status: %d: %s", status
, get_status_str(status
));
314 case NL80211_CMD_ROAM
:
316 if (tb
[NL80211_ATTR_MAC
]) {
317 mac_addr_n2a(macbuf
, nla_data(tb
[NL80211_ATTR_MAC
]));
318 printf(" to %s", macbuf
);
322 case NL80211_CMD_DISCONNECT
:
323 printf("disconnected");
324 if (tb
[NL80211_ATTR_DISCONNECTED_BY_AP
])
327 printf(" (local request)");
328 if (tb
[NL80211_ATTR_REASON_CODE
])
329 printf(" reason: %d: %s", nla_get_u16(tb
[NL80211_ATTR_REASON_CODE
]),
330 get_reason_str(nla_get_u16(tb
[NL80211_ATTR_REASON_CODE
])));
333 case NL80211_CMD_REMAIN_ON_CHANNEL
:
334 printf("remain on freq %d (%dms, cookie %llx)\n",
335 nla_get_u32(tb
[NL80211_ATTR_WIPHY_FREQ
]),
336 nla_get_u32(tb
[NL80211_ATTR_DURATION
]),
337 (unsigned long long)nla_get_u64(tb
[NL80211_ATTR_COOKIE
]));
339 case NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL
:
340 printf("done with remain on freq %d (cookie %llx)\n",
341 nla_get_u32(tb
[NL80211_ATTR_WIPHY_FREQ
]),
342 (unsigned long long)nla_get_u64(tb
[NL80211_ATTR_COOKIE
]));
344 case NL80211_CMD_NOTIFY_CQM
:
345 parse_cqm_event(tb
[NL80211_ATTR_CQM
]);
348 printf("unknown event %d\n", gnlh
->cmd
);
354 #undef PARSE_BEACON_CHAN
361 struct print_event_args
*pargs
;
364 static int wait_event(struct nl_msg
*msg
, void *arg
)
366 struct wait_event
*wait
= arg
;
367 struct genlmsghdr
*gnlh
= nlmsg_data(nlmsg_hdr(msg
));
370 for (i
= 0; i
< wait
->n_cmds
; i
++) {
371 if (gnlh
->cmd
== wait
->cmds
[i
]) {
372 wait
->cmd
= gnlh
->cmd
;
374 print_event(msg
, wait
->pargs
);
381 int __prepare_listen_events(struct nl80211_state
*state
)
385 /* Configuration multicast group */
386 mcid
= nl_get_multicast_id(state
->nl_sock
, "nl80211", "config");
390 ret
= nl_socket_add_membership(state
->nl_sock
, mcid
);
394 /* Scan multicast group */
395 mcid
= nl_get_multicast_id(state
->nl_sock
, "nl80211", "scan");
397 ret
= nl_socket_add_membership(state
->nl_sock
, mcid
);
402 /* Regulatory multicast group */
403 mcid
= nl_get_multicast_id(state
->nl_sock
, "nl80211", "regulatory");
405 ret
= nl_socket_add_membership(state
->nl_sock
, mcid
);
410 /* MLME multicast group */
411 mcid
= nl_get_multicast_id(state
->nl_sock
, "nl80211", "mlme");
413 ret
= nl_socket_add_membership(state
->nl_sock
, mcid
);
421 __u32
__do_listen_events(struct nl80211_state
*state
,
422 const int n_waits
, const __u32
*waits
,
423 struct print_event_args
*args
)
425 struct nl_cb
*cb
= nl_cb_alloc(iw_debug
? NL_CB_DEBUG
: NL_CB_DEFAULT
);
426 struct wait_event wait_ev
;
429 fprintf(stderr
, "failed to allocate netlink callbacks\n");
433 /* no sequence checking for multicast messages */
434 nl_cb_set(cb
, NL_CB_SEQ_CHECK
, NL_CB_CUSTOM
, no_seq_check
, NULL
);
436 if (n_waits
&& waits
) {
437 wait_ev
.cmds
= waits
;
438 wait_ev
.n_cmds
= n_waits
;
439 wait_ev
.pargs
= args
;
440 nl_cb_set(cb
, NL_CB_VALID
, NL_CB_CUSTOM
, wait_event
, &wait_ev
);
442 nl_cb_set(cb
, NL_CB_VALID
, NL_CB_CUSTOM
, print_event
, args
);
447 nl_recvmsgs(state
->nl_sock
, cb
);
454 __u32
listen_events(struct nl80211_state
*state
,
455 const int n_waits
, const __u32
*waits
)
459 ret
= __prepare_listen_events(state
);
463 return __do_listen_events(state
, n_waits
, waits
, NULL
);
466 static int print_events(struct nl80211_state
*state
,
469 int argc
, char **argv
)
471 struct print_event_args args
;
474 memset(&args
, 0, sizeof(args
));
480 if (strcmp(argv
[0], "-f") == 0)
482 else if (strcmp(argv
[0], "-t") == 0)
493 ret
= __prepare_listen_events(state
);
497 return __do_listen_events(state
, 0, NULL
, &args
);
499 TOPLEVEL(event
, "[-t] [-f]", 0, 0, CIB_NONE
, print_events
,
500 "Monitor events from the kernel.\n"
501 "-t - print timestamp\n"
502 "-f - print full frame for auth/assoc etc.");