7 #include <netlink/genl/genl.h>
8 #include <netlink/genl/family.h>
9 #include <netlink/genl/ctrl.h>
10 #include <netlink/msg.h>
11 #include <netlink/attr.h>
16 #define WLAN_CAPABILITY_ESS (1<<0)
17 #define WLAN_CAPABILITY_IBSS (1<<1)
18 #define WLAN_CAPABILITY_CF_POLLABLE (1<<2)
19 #define WLAN_CAPABILITY_CF_POLL_REQUEST (1<<3)
20 #define WLAN_CAPABILITY_PRIVACY (1<<4)
21 #define WLAN_CAPABILITY_SHORT_PREAMBLE (1<<5)
22 #define WLAN_CAPABILITY_PBCC (1<<6)
23 #define WLAN_CAPABILITY_CHANNEL_AGILITY (1<<7)
24 #define WLAN_CAPABILITY_SPECTRUM_MGMT (1<<8)
25 #define WLAN_CAPABILITY_QOS (1<<9)
26 #define WLAN_CAPABILITY_SHORT_SLOT_TIME (1<<10)
27 #define WLAN_CAPABILITY_APSD (1<<11)
28 #define WLAN_CAPABILITY_RADIO_MEASURE (1<<12)
29 #define WLAN_CAPABILITY_DSSS_OFDM (1<<13)
30 #define WLAN_CAPABILITY_DEL_BACK (1<<14)
31 #define WLAN_CAPABILITY_IMM_BACK (1<<15)
32 /* DMG (60gHz) 802.11ad */
33 /* type - bits 0..1 */
34 #define WLAN_CAPABILITY_DMG_TYPE_MASK (3<<0)
36 #define WLAN_CAPABILITY_DMG_TYPE_IBSS (1<<0) /* Tx by: STA */
37 #define WLAN_CAPABILITY_DMG_TYPE_PBSS (2<<0) /* Tx by: PCP */
38 #define WLAN_CAPABILITY_DMG_TYPE_AP (3<<0) /* Tx by: AP */
40 #define WLAN_CAPABILITY_DMG_CBAP_ONLY (1<<2)
41 #define WLAN_CAPABILITY_DMG_CBAP_SOURCE (1<<3)
42 #define WLAN_CAPABILITY_DMG_PRIVACY (1<<4)
43 #define WLAN_CAPABILITY_DMG_ECPAC (1<<5)
45 #define WLAN_CAPABILITY_DMG_SPECTRUM_MGMT (1<<8)
46 #define WLAN_CAPABILITY_DMG_RADIO_MEASURE (1<<12)
48 static unsigned char ms_oui
[3] = { 0x00, 0x50, 0xf2 };
49 static unsigned char ieee80211_oui
[3] = { 0x00, 0x0f, 0xac };
50 static unsigned char wfa_oui
[3] = { 0x50, 0x6f, 0x9a };
54 enum print_ie_type type
;
55 bool show_both_ie_sets
;
58 #define IEEE80211_COUNTRY_EXTENSION_ID 201
60 union ieee80211_country_ie_triplet
{
65 } __attribute__ ((packed
)) chans
;
67 __u8 reg_extension_id
;
70 } __attribute__ ((packed
)) ext
;
71 } __attribute__ ((packed
));
73 static int handle_scan(struct nl80211_state
*state
,
76 int argc
, char **argv
,
79 struct nl_msg
*ssids
= NULL
, *freqs
= NULL
;
91 bool passive
= false, have_ssids
= false, have_freqs
= false;
96 ssids
= nlmsg_alloc();
100 freqs
= nlmsg_alloc();
106 for (i
= 0; i
< argc
; i
++) {
109 if (strcmp(argv
[i
], "freq") == 0) {
113 } else if (strcmp(argv
[i
], "ies") == 0) {
116 } else if (strcmp(argv
[i
], "lowpri") == 0) {
118 flags
|= NL80211_SCAN_FLAG_LOW_PRIORITY
;
120 } else if (strcmp(argv
[i
], "flush") == 0) {
122 flags
|= NL80211_SCAN_FLAG_FLUSH
;
124 } else if (strcmp(argv
[i
], "ap-force") == 0) {
126 flags
|= NL80211_SCAN_FLAG_AP
;
128 } else if (strcmp(argv
[i
], "ssid") == 0) {
132 } else if (strcmp(argv
[i
], "passive") == 0) {
140 freq
= strtoul(argv
[i
], &eptr
, 10);
141 if (eptr
!= argv
[i
] + strlen(argv
[i
])) {
142 /* failed to parse as number -- maybe a tag? */
147 NLA_PUT_U32(freqs
, i
, freq
);
150 ies
= parse_hex(argv
[i
], &tmp
);
152 goto nla_put_failure
;
153 NLA_PUT(msg
, NL80211_ATTR_IE
, tmp
, ies
);
158 NLA_PUT(ssids
, i
, strlen(argv
[i
]), argv
[i
]);
164 NLA_PUT(ssids
, 1, 0, "");
166 nla_put_nested(msg
, NL80211_ATTR_SCAN_SSIDS
, ssids
);
169 nla_put_nested(msg
, NL80211_ATTR_SCAN_FREQUENCIES
, freqs
);
171 NLA_PUT_U32(msg
, NL80211_ATTR_SCAN_FLAGS
, flags
);
180 static void tab_on_first(bool *first
)
188 static void print_ssid(const uint8_t type
, uint8_t len
, const uint8_t *data
)
191 print_ssid_escaped(len
, data
);
195 #define BSS_MEMBERSHIP_SELECTOR_VHT_PHY 126
196 #define BSS_MEMBERSHIP_SELECTOR_HT_PHY 127
198 static void print_supprates(const uint8_t type
, uint8_t len
, const uint8_t *data
)
204 for (i
= 0; i
< len
; i
++) {
205 int r
= data
[i
] & 0x7f;
207 if (r
== BSS_MEMBERSHIP_SELECTOR_VHT_PHY
&& data
[i
] & 0x80)
209 else if (r
== BSS_MEMBERSHIP_SELECTOR_HT_PHY
&& data
[i
] & 0x80)
212 printf("%d.%d", r
/2, 5*(r
&1));
214 printf("%s ", data
[i
] & 0x80 ? "*" : "");
219 static void print_ds(const uint8_t type
, uint8_t len
, const uint8_t *data
)
221 printf(" channel %d\n", data
[0]);
224 static const char *country_env_str(char environment
)
226 switch (environment
) {
228 return "Indoor only";
230 return "Outdoor only";
232 return "Indoor/Outdoor";
238 static void print_country(const uint8_t type
, uint8_t len
, const uint8_t *data
)
240 printf(" %.*s", 2, data
);
242 printf("\tEnvironment: %s\n", country_env_str(data
[2]));
248 printf("\t\tNo country IE triplets present\n");
254 union ieee80211_country_ie_triplet
*triplet
= (void *) data
;
256 if (triplet
->ext
.reg_extension_id
>= IEEE80211_COUNTRY_EXTENSION_ID
) {
257 printf("\t\tExtension ID: %d Regulatory Class: %d Coverage class: %d (up to %dm)\n",
258 triplet
->ext
.reg_extension_id
,
259 triplet
->ext
.reg_class
,
260 triplet
->ext
.coverage_class
,
261 triplet
->ext
.coverage_class
* 450);
269 if (triplet
->chans
.first_channel
<= 14)
270 end_channel
= triplet
->chans
.first_channel
+ (triplet
->chans
.num_channels
- 1);
272 end_channel
= triplet
->chans
.first_channel
+ (4 * (triplet
->chans
.num_channels
- 1));
274 printf("\t\tChannels [%d - %d] @ %d dBm\n", triplet
->chans
.first_channel
, end_channel
, triplet
->chans
.max_power
);
283 static void print_powerconstraint(const uint8_t type
, uint8_t len
, const uint8_t *data
)
285 printf(" %d dB\n", data
[0]);
288 static void print_tpcreport(const uint8_t type
, uint8_t len
, const uint8_t *data
)
290 printf(" TX power: %d dBm\n", data
[0]);
291 /* printf(" Link Margin (%d dB) is reserved in Beacons\n", data[1]); */
294 static void print_erp(const uint8_t type
, uint8_t len
, const uint8_t *data
)
297 printf(" <no flags>");
299 printf(" NonERP_Present");
301 printf(" Use_Protection");
303 printf(" Barker_Preamble_Mode");
307 static void print_cipher(const uint8_t *data
)
309 if (memcmp(data
, ms_oui
, 3) == 0) {
312 printf("Use group cipher suite");
327 printf("%.02x-%.02x-%.02x:%d",
328 data
[0], data
[1] ,data
[2], data
[3]);
331 } else if (memcmp(data
, ieee80211_oui
, 3) == 0) {
334 printf("Use group cipher suite");
349 printf("AES-128-CMAC");
355 printf("%.02x-%.02x-%.02x:%d",
356 data
[0], data
[1] ,data
[2], data
[3]);
360 printf("%.02x-%.02x-%.02x:%d",
361 data
[0], data
[1] ,data
[2], data
[3]);
364 static void print_auth(const uint8_t *data
)
366 if (memcmp(data
, ms_oui
, 3) == 0) {
369 printf("IEEE 802.1X");
375 printf("%.02x-%.02x-%.02x:%d",
376 data
[0], data
[1] ,data
[2], data
[3]);
379 } else if (memcmp(data
, ieee80211_oui
, 3) == 0) {
382 printf("IEEE 802.1X");
388 printf("FT/IEEE 802.1X");
394 printf("IEEE 802.1X/SHA-256");
397 printf("PSK/SHA-256");
400 printf("%.02x-%.02x-%.02x:%d",
401 data
[0], data
[1] ,data
[2], data
[3]);
405 printf("%.02x-%.02x-%.02x:%d",
406 data
[0], data
[1] ,data
[2], data
[3]);
409 static void print_rsn_ie(const char *defcipher
, const char *defauth
,
410 uint8_t len
, const uint8_t *data
)
413 __u16 version
, count
, capa
;
416 version
= data
[0] + (data
[1] << 8);
417 tab_on_first(&first
);
418 printf("\t * Version: %d\n", version
);
424 tab_on_first(&first
);
425 printf("\t * Group cipher: %s\n", defcipher
);
426 printf("\t * Pairwise ciphers: %s\n", defcipher
);
430 tab_on_first(&first
);
431 printf("\t * Group cipher: ");
439 tab_on_first(&first
);
440 printf("\t * Pairwise ciphers: %s\n", defcipher
);
444 count
= data
[0] | (data
[1] << 8);
445 if (2 + (count
* 4) > len
)
448 tab_on_first(&first
);
449 printf("\t * Pairwise ciphers:");
450 for (i
= 0; i
< count
; i
++) {
452 print_cipher(data
+ 2 + (i
* 4));
456 data
+= 2 + (count
* 4);
457 len
-= 2 + (count
* 4);
460 tab_on_first(&first
);
461 printf("\t * Authentication suites: %s\n", defauth
);
465 count
= data
[0] | (data
[1] << 8);
466 if (2 + (count
* 4) > len
)
469 tab_on_first(&first
);
470 printf("\t * Authentication suites:");
471 for (i
= 0; i
< count
; i
++) {
473 print_auth(data
+ 2 + (i
* 4));
477 data
+= 2 + (count
* 4);
478 len
-= 2 + (count
* 4);
481 capa
= data
[0] | (data
[1] << 8);
482 tab_on_first(&first
);
483 printf("\t * Capabilities:");
487 printf(" NoPairwise");
488 switch ((capa
& 0x000c) >> 2) {
492 printf(" 2-PTKSA-RC");
495 printf(" 4-PTKSA-RC");
498 printf(" 16-PTKSA-RC");
501 switch ((capa
& 0x0030) >> 4) {
505 printf(" 2-GTKSA-RC");
508 printf(" 4-GTKSA-RC");
511 printf(" 16-GTKSA-RC");
515 printf(" MFP-required");
517 printf(" MFP-capable");
519 printf(" Peerkey-enabled");
521 printf(" SPP-AMSDU-capable");
523 printf(" SPP-AMSDU-required");
524 printf(" (0x%.4x)\n", capa
);
530 int pmkid_count
= data
[0] | (data
[1] << 8);
532 if (len
>= 2 + 16 * pmkid_count
) {
533 tab_on_first(&first
);
534 printf("\t * %d PMKIDs\n", pmkid_count
);
535 /* not printing PMKID values */
536 data
+= 2 + 16 * pmkid_count
;
537 len
-= 2 + 16 * pmkid_count
;
543 tab_on_first(&first
);
544 printf("\t * Group mgmt cipher suite: ");
553 printf("\t\t * bogus tail data (%d):", len
);
555 printf(" %.2x", *data
);
563 static void print_rsn(const uint8_t type
, uint8_t len
, const uint8_t *data
)
565 print_rsn_ie("CCMP", "IEEE 802.1X", len
, data
);
568 static void print_ht_capa(const uint8_t type
, uint8_t len
, const uint8_t *data
)
571 print_ht_capability(data
[0] | (data
[1] << 8));
572 print_ampdu_length(data
[2] & 3);
573 print_ampdu_spacing((data
[2] >> 2) & 7);
574 print_ht_mcs(data
+ 3);
577 static const char *ht_secondary_offset
[4] = {
584 static void print_ht_op(const uint8_t type
, uint8_t len
, const uint8_t *data
)
586 static const char *protection
[4] = {
592 static const char *sta_chan_width
[2] = {
598 printf("\t\t * primary channel: %d\n", data
[0]);
599 printf("\t\t * secondary channel offset: %s\n",
600 ht_secondary_offset
[data
[1] & 0x3]);
601 printf("\t\t * STA channel width: %s\n", sta_chan_width
[(data
[1] & 0x4)>>2]);
602 printf("\t\t * RIFS: %d\n", (data
[1] & 0x8)>>3);
603 printf("\t\t * HT protection: %s\n", protection
[data
[2] & 0x3]);
604 printf("\t\t * non-GF present: %d\n", (data
[2] & 0x4) >> 2);
605 printf("\t\t * OBSS non-GF present: %d\n", (data
[2] & 0x10) >> 4);
606 printf("\t\t * dual beacon: %d\n", (data
[4] & 0x40) >> 6);
607 printf("\t\t * dual CTS protection: %d\n", (data
[4] & 0x80) >> 7);
608 printf("\t\t * STBC beacon: %d\n", data
[5] & 0x1);
609 printf("\t\t * L-SIG TXOP Prot: %d\n", (data
[5] & 0x2) >> 1);
610 printf("\t\t * PCO active: %d\n", (data
[5] & 0x4) >> 2);
611 printf("\t\t * PCO phase: %d\n", (data
[5] & 0x8) >> 3);
614 static void print_capabilities(const uint8_t type
, uint8_t len
, const uint8_t *data
)
620 for (i
= 0; i
< len
; i
++) {
623 for (bit
= 0; bit
< 8; bit
++) {
624 if (!(data
[i
] & (1 << bit
)))
632 #define CAPA(bit, name) case bit: printf(" " name); break
634 switch (bit
+ base
) {
635 CAPA(0, "HT Information Exchange Supported");
636 CAPA(1, "reserved (On-demand Beacon)");
637 CAPA(2, "Extended Channel Switching");
638 CAPA(3, "reserved (Wave Indication)");
639 CAPA(4, "PSMP Capability");
640 CAPA(5, "reserved (Service Interval Granularity)");
641 CAPA(6, "S-PSMP Capability");
643 CAPA(8, "Diagnostics");
644 CAPA(9, "Multicast Diagnostics");
645 CAPA(10, "Location Tracking");
647 CAPA(12, "Proxy ARP Service");
648 CAPA(13, "Collocated Interference Reporting");
649 CAPA(14, "Civic Location");
650 CAPA(15, "Geospatial Location");
652 CAPA(17, "WNM-Sleep Mode");
653 CAPA(18, "TIM Broadcast");
654 CAPA(19, "BSS Transition");
655 CAPA(20, "QoS Traffic Capability");
656 CAPA(21, "AC Station Count");
657 CAPA(22, "Multiple BSSID");
658 CAPA(23, "Timing Measurement");
659 CAPA(24, "Channel Usage");
660 CAPA(25, "SSID List");
662 CAPA(27, "UTC TSF Offset");
663 CAPA(28, "TDLS Peer U-APSD Buffer STA Support");
664 CAPA(29, "TDLS Peer PSM Support");
665 CAPA(30, "TDLS channel switching");
666 CAPA(31, "Interworking");
669 CAPA(34, "SSPN Interface");
670 CAPA(35, "Reserved");
671 CAPA(36, "MSGCF Capability");
672 CAPA(37, "TDLS Support");
673 CAPA(38, "TDLS Prohibited");
674 CAPA(39, "TDLS Channel Switching Prohibited");
675 CAPA(40, "Reject Unadmitted Frame");
676 CAPA(44, "Identifier Location");
677 CAPA(45, "U-APSD Coexistence");
678 CAPA(46, "WNM-Notification");
679 CAPA(47, "Reserved");
680 CAPA(48, "UTF-8 SSID");
692 static void print_tim(const uint8_t type
, uint8_t len
, const uint8_t *data
)
694 printf(" DTIM Count %u DTIM Period %u Bitmap Control 0x%x "
696 data
[0], data
[1], data
[2], data
[3]);
698 printf(" (+ %u octet%s)", len
- 4, len
- 4 == 1 ? "" : "s");
702 static void print_ibssatim(const uint8_t type
, uint8_t len
, const uint8_t *data
)
704 printf(" %d TUs", (data
[1] << 8) + data
[0]);
707 static void print_vht_capa(const uint8_t type
, uint8_t len
, const uint8_t *data
)
710 print_vht_info(data
[0] | (data
[1] << 8) |
711 (data
[2] << 16) | (data
[3] << 24),
715 static void print_vht_oper(const uint8_t type
, uint8_t len
, const uint8_t *data
)
717 const char *chandwidths
[] = {
718 [0] = "20 or 40 MHz",
725 printf("\t\t * channel width: %d (%s)\n", data
[0],
726 data
[0] < ARRAY_SIZE(chandwidths
) ? chandwidths
[data
[0]] : "unknown");
727 printf("\t\t * center freq segment 1: %d\n", data
[1]);
728 printf("\t\t * center freq segment 2: %d\n", data
[2]);
729 printf("\t\t * VHT basic MCS set: 0x%.2x%.2x\n", data
[4], data
[3]);
732 static void print_obss_scan_params(const uint8_t type
, uint8_t len
, const uint8_t *data
)
735 printf("\t\t * passive dwell: %d TUs\n", (data
[1] << 8) | data
[0]);
736 printf("\t\t * active dwell: %d TUs\n", (data
[3] << 8) | data
[2]);
737 printf("\t\t * channel width trigger scan interval: %d s\n", (data
[5] << 8) | data
[4]);
738 printf("\t\t * scan passive total per channel: %d TUs\n", (data
[7] << 8) | data
[6]);
739 printf("\t\t * scan active total per channel: %d TUs\n", (data
[9] << 8) | data
[8]);
740 printf("\t\t * BSS width channel transition delay factor: %d\n", (data
[11] << 8) | data
[10]);
741 printf("\t\t * OBSS Scan Activity Threshold: %d.%02d %%\n",
742 ((data
[13] << 8) | data
[12]) / 100, ((data
[13] << 8) | data
[12]) % 100);
745 static void print_secchan_offs(const uint8_t type
, uint8_t len
, const uint8_t *data
)
747 if (data
[0] < ARRAY_SIZE(ht_secondary_offset
))
748 printf(" %s (%d)\n", ht_secondary_offset
[data
[0]], data
[0]);
750 printf(" %d\n", data
[0]);
753 static void print_bss_load(const uint8_t type
, uint8_t len
, const uint8_t *data
)
756 printf("\t\t * station count: %d\n", (data
[1] << 8) | data
[0]);
757 printf("\t\t * channel utilisation: %d/255\n", data
[2]);
758 printf("\t\t * available admission capacity: %d [*32us]\n", (data
[4] << 8) | data
[3]);
763 void (*print
)(const uint8_t type
, uint8_t len
, const uint8_t *data
);
764 uint8_t minlen
, maxlen
;
768 static void print_ie(const struct ie_print
*p
, const uint8_t type
,
769 uint8_t len
, const uint8_t *data
)
776 printf("\t%s:", p
->name
);
777 if (len
< p
->minlen
|| len
> p
->maxlen
) {
779 printf(" <invalid: %d bytes:", len
);
780 for (i
= 0; i
< len
; i
++)
781 printf(" %.02x", data
[i
]);
784 printf(" <invalid: 1 byte: %.02x>\n", data
[0]);
786 printf(" <invalid: no data>\n");
790 p
->print(type
, len
, data
);
793 #define PRINT_IGN { \
800 static const struct ie_print ieprinters
[] = {
801 [0] = { "SSID", print_ssid
, 0, 32, BIT(PRINT_SCAN
) | BIT(PRINT_LINK
), },
802 [1] = { "Supported rates", print_supprates
, 0, 255, BIT(PRINT_SCAN
), },
803 [3] = { "DS Parameter set", print_ds
, 1, 1, BIT(PRINT_SCAN
), },
804 [5] = { "TIM", print_tim
, 4, 255, BIT(PRINT_SCAN
), },
805 [6] = { "IBSS ATIM window", print_ibssatim
, 2, 2, BIT(PRINT_SCAN
), },
806 [7] = { "Country", print_country
, 3, 255, BIT(PRINT_SCAN
), },
807 [11] = { "BSS Load", print_bss_load
, 5, 5, BIT(PRINT_SCAN
), },
808 [32] = { "Power constraint", print_powerconstraint
, 1, 1, BIT(PRINT_SCAN
), },
809 [35] = { "TPC report", print_tpcreport
, 2, 2, BIT(PRINT_SCAN
), },
810 [42] = { "ERP", print_erp
, 1, 255, BIT(PRINT_SCAN
), },
811 [45] = { "HT capabilities", print_ht_capa
, 26, 26, BIT(PRINT_SCAN
), },
812 [47] = { "ERP D4.0", print_erp
, 1, 255, BIT(PRINT_SCAN
), },
813 [74] = { "Overlapping BSS scan params", print_obss_scan_params
, 14, 255, BIT(PRINT_SCAN
), },
814 [61] = { "HT operation", print_ht_op
, 22, 22, BIT(PRINT_SCAN
), },
815 [62] = { "Secondary Channel Offset", print_secchan_offs
, 1, 1, BIT(PRINT_SCAN
), },
816 [191] = { "VHT capabilities", print_vht_capa
, 12, 255, BIT(PRINT_SCAN
), },
817 [192] = { "VHT operation", print_vht_oper
, 5, 255, BIT(PRINT_SCAN
), },
818 [48] = { "RSN", print_rsn
, 2, 255, BIT(PRINT_SCAN
), },
819 [50] = { "Extended supported rates", print_supprates
, 0, 255, BIT(PRINT_SCAN
), },
820 [114] = { "MESH ID", print_ssid
, 0, 32, BIT(PRINT_SCAN
) | BIT(PRINT_LINK
), },
821 [127] = { "Extended capabilities", print_capabilities
, 0, 255, BIT(PRINT_SCAN
), },
824 static void print_wifi_wpa(const uint8_t type
, uint8_t len
, const uint8_t *data
)
826 print_rsn_ie("TKIP", "IEEE 802.1X", len
, data
);
829 static bool print_wifi_wmm_param(const uint8_t *data
, uint8_t len
)
832 static const char *aci_tbl
[] = { "BE", "BK", "VI", "VO" };
838 printf("Parameter: not version 1: ");
842 printf("\t * Parameter version 1");
847 printf("\n\t\t * u-APSD");
851 for (i
= 0; i
< 4; i
++) {
852 printf("\n\t\t * %s:", aci_tbl
[(data
[0] >> 5) & 3]);
855 printf(" CW %d-%d", (1 << (data
[1] & 0xf)) - 1,
856 (1 << (data
[1] >> 4)) - 1);
857 printf(", AIFSN %d", data
[0] & 0xf);
858 if (data
[2] | data
[3])
859 printf(", TXOP %d usec", (data
[2] + (data
[3] << 8)) * 32);
871 static void print_wifi_wmm(const uint8_t type
, uint8_t len
, const uint8_t *data
)
877 printf(" information:");
880 if (print_wifi_wmm_param(data
+ 1, len
- 1))
884 printf(" type %d:", data
[0]);
888 for(i
= 1; i
< len
; i
++)
889 printf(" %.02x", data
[i
]);
893 static const char * wifi_wps_dev_passwd_id(uint16_t id
)
897 return "Default (PIN)";
899 return "User-specified";
901 return "Machine-specified";
907 return "Registrar-specified";
913 static void print_wifi_wps(const uint8_t type
, uint8_t len
, const uint8_t *data
)
916 __u16 subtype
, sublen
;
919 subtype
= (data
[0] << 8) + data
[1];
920 sublen
= (data
[2] << 8) + data
[3];
926 tab_on_first(&first
);
927 printf("\t * Version: %d.%d\n", data
[4] >> 4, data
[4] & 0xF);
930 tab_on_first(&first
);
931 printf("\t * Device name: %.*s\n", sublen
, data
+ 4);
935 tab_on_first(&first
);
937 printf("\t * Device Password ID: (invalid "
938 "length %d)\n", sublen
);
941 id
= data
[4] << 8 | data
[5];
942 printf("\t * Device Password ID: %u (%s)\n",
943 id
, wifi_wps_dev_passwd_id(id
));
947 tab_on_first(&first
);
948 printf("\t * Manufacturer: %.*s\n", sublen
, data
+ 4);
951 tab_on_first(&first
);
952 printf("\t * Model: %.*s\n", sublen
, data
+ 4);
955 tab_on_first(&first
);
956 printf("\t * Model Number: %.*s\n", sublen
, data
+ 4);
960 tab_on_first(&first
);
961 printf("\t * Response Type: %d%s\n",
962 val
, val
== 3 ? " (AP)" : "");
967 tab_on_first(&first
);
968 printf("\t * RF Bands: 0x%x\n", val
);
973 tab_on_first(&first
);
974 printf("\t * Selected Registrar: 0x%x\n", val
);
978 tab_on_first(&first
);
979 printf("\t * Serial Number: %.*s\n", sublen
, data
+ 4);
983 tab_on_first(&first
);
984 printf("\t * Wi-Fi Protected Setup State: %d%s%s\n",
986 val
== 1 ? " (Unconfigured)" : "",
987 val
== 2 ? " (Configured)" : "");
991 tab_on_first(&first
);
992 printf("\t * UUID: ");
994 printf("(invalid, length=%d)\n", sublen
);
997 printf("%02x%02x%02x%02x-%02x%02x-%02x%02x-"
998 "%02x%02x-%02x%02x%02x%02x%02x%02x\n",
999 data
[4], data
[5], data
[6], data
[7],
1000 data
[8], data
[9], data
[10], data
[11],
1001 data
[12], data
[13], data
[14], data
[15],
1002 data
[16], data
[17], data
[18], data
[19]);
1005 tab_on_first(&first
);
1007 printf("\t * Primary Device Type: (invalid "
1008 "length %d)\n", sublen
);
1011 printf("\t * Primary Device Type: "
1012 "%u-%02x%02x%02x%02x-%u\n",
1013 data
[4] << 8 | data
[5],
1014 data
[6], data
[7], data
[8], data
[9],
1015 data
[10] << 8 | data
[11]);
1020 tab_on_first(&first
);
1021 printf("\t * AP setup locked: 0x%.2x\n", val
);
1026 __u16 meth
= (data
[4] << 8) + data
[5];
1028 tab_on_first(&first
);
1029 printf("\t * %sConfig methods:",
1030 subtype
== 0x1053 ? "Selected Registrar ": "");
1031 #define T(bit, name) do { \
1032 if (meth & (1<<bit)) { \
1052 const __u8
*subdata
= data
+ 4;
1053 __u16 tmplen
= sublen
;
1055 tab_on_first(&first
);
1056 printf("\t * Unknown TLV (%#.4x, %d bytes):",
1059 printf(" %.2x", *subdata
);
1073 printf("\t\t * bogus tail data (%d):", len
);
1075 printf(" %.2x", *data
);
1083 static const struct ie_print wifiprinters
[] = {
1084 [1] = { "WPA", print_wifi_wpa
, 2, 255, BIT(PRINT_SCAN
), },
1085 [2] = { "WMM", print_wifi_wmm
, 1, 255, BIT(PRINT_SCAN
), },
1086 [4] = { "WPS", print_wifi_wps
, 0, 255, BIT(PRINT_SCAN
), },
1089 static inline void print_p2p(const uint8_t type
, uint8_t len
, const uint8_t *data
)
1097 sublen
= (data
[2] << 8) + data
[1];
1099 if (sublen
> len
- 3)
1103 case 0x02: /* capability */
1104 tab_on_first(&first
);
1106 printf("\t * malformed capability\n");
1109 printf("\t * Group capa: 0x%.2x, Device capa: 0x%.2x\n",
1112 case 0x0d: /* device info */
1113 if (sublen
< 6 + 2 + 8 + 1) {
1114 printf("\t * malformed device info\n");
1117 /* fall through for now */
1118 case 0x00: /* status */
1119 case 0x01: /* minor reason */
1120 case 0x03: /* device ID */
1121 case 0x04: /* GO intent */
1122 case 0x05: /* configuration timeout */
1123 case 0x06: /* listen channel */
1124 case 0x07: /* group BSSID */
1125 case 0x08: /* ext listen timing */
1126 case 0x09: /* intended interface address */
1127 case 0x0a: /* manageability */
1128 case 0x0b: /* channel list */
1129 case 0x0c: /* NoA */
1130 case 0x0e: /* group info */
1131 case 0x0f: /* group ID */
1132 case 0x10: /* interface */
1133 case 0x11: /* operating channel */
1134 case 0x12: /* invitation flags */
1135 case 0xdd: /* vendor specific */
1137 const __u8
*subdata
= data
+ 4;
1138 __u16 tmplen
= sublen
;
1140 tab_on_first(&first
);
1141 printf("\t * Unknown TLV (%#.2x, %d bytes):",
1144 printf(" %.2x", *subdata
);
1158 tab_on_first(&first
);
1159 printf("\t * bogus tail data (%d):", len
);
1161 printf(" %.2x", *data
);
1169 static const struct ie_print wfa_printers
[] = {
1170 [9] = { "P2P", print_p2p
, 2, 255, BIT(PRINT_SCAN
), },
1173 static void print_vendor(unsigned char len
, unsigned char *data
,
1174 bool unknown
, enum print_ie_type ptype
)
1179 printf("\tVendor specific: <too short> data:");
1180 for(i
= 0; i
< len
; i
++)
1181 printf(" %.02x", data
[i
]);
1186 if (len
>= 4 && memcmp(data
, ms_oui
, 3) == 0) {
1187 if (data
[3] < ARRAY_SIZE(wifiprinters
) &&
1188 wifiprinters
[data
[3]].name
&&
1189 wifiprinters
[data
[3]].flags
& BIT(ptype
)) {
1190 print_ie(&wifiprinters
[data
[3]], data
[3], len
- 4, data
+ 4);
1195 printf("\tMS/WiFi %#.2x, data:", data
[3]);
1196 for(i
= 0; i
< len
- 4; i
++)
1197 printf(" %.02x", data
[i
+ 4]);
1202 if (len
>= 4 && memcmp(data
, wfa_oui
, 3) == 0) {
1203 if (data
[3] < ARRAY_SIZE(wfa_printers
) &&
1204 wfa_printers
[data
[3]].name
&&
1205 wfa_printers
[data
[3]].flags
& BIT(ptype
)) {
1206 print_ie(&wfa_printers
[data
[3]], data
[3], len
- 4, data
+ 4);
1211 printf("\tWFA %#.2x, data:", data
[3]);
1212 for(i
= 0; i
< len
- 4; i
++)
1213 printf(" %.02x", data
[i
+ 4]);
1221 printf("\tVendor specific: OUI %.2x:%.2x:%.2x, data:",
1222 data
[0], data
[1], data
[2]);
1223 for (i
= 3; i
< len
; i
++)
1224 printf(" %.2x", data
[i
]);
1228 void print_ies(unsigned char *ie
, int ielen
, bool unknown
,
1229 enum print_ie_type ptype
)
1231 while (ielen
>= 2 && ielen
>= ie
[1]) {
1232 if (ie
[0] < ARRAY_SIZE(ieprinters
) &&
1233 ieprinters
[ie
[0]].name
&&
1234 ieprinters
[ie
[0]].flags
& BIT(ptype
)) {
1235 print_ie(&ieprinters
[ie
[0]], ie
[0], ie
[1], ie
+ 2);
1236 } else if (ie
[0] == 221 /* vendor */) {
1237 print_vendor(ie
[1], ie
+ 2, unknown
, ptype
);
1238 } else if (unknown
) {
1241 printf("\tUnknown IE (%d):", ie
[0]);
1242 for (i
=0; i
<ie
[1]; i
++)
1243 printf(" %.2x", ie
[2+i
]);
1251 static void print_capa_dmg(__u16 capa
)
1253 switch (capa
& WLAN_CAPABILITY_DMG_TYPE_MASK
) {
1254 case WLAN_CAPABILITY_DMG_TYPE_AP
:
1257 case WLAN_CAPABILITY_DMG_TYPE_PBSS
:
1260 case WLAN_CAPABILITY_DMG_TYPE_IBSS
:
1261 printf(" DMG_IBSS");
1265 if (capa
& WLAN_CAPABILITY_DMG_CBAP_ONLY
)
1266 printf(" CBAP_Only");
1267 if (capa
& WLAN_CAPABILITY_DMG_CBAP_SOURCE
)
1268 printf(" CBAP_Src");
1269 if (capa
& WLAN_CAPABILITY_DMG_PRIVACY
)
1271 if (capa
& WLAN_CAPABILITY_DMG_ECPAC
)
1273 if (capa
& WLAN_CAPABILITY_DMG_SPECTRUM_MGMT
)
1274 printf(" SpectrumMgmt");
1275 if (capa
& WLAN_CAPABILITY_DMG_RADIO_MEASURE
)
1276 printf(" RadioMeasure");
1279 static void print_capa_non_dmg(__u16 capa
)
1281 if (capa
& WLAN_CAPABILITY_ESS
)
1283 if (capa
& WLAN_CAPABILITY_IBSS
)
1285 if (capa
& WLAN_CAPABILITY_CF_POLLABLE
)
1286 printf(" CfPollable");
1287 if (capa
& WLAN_CAPABILITY_CF_POLL_REQUEST
)
1288 printf(" CfPollReq");
1289 if (capa
& WLAN_CAPABILITY_PRIVACY
)
1291 if (capa
& WLAN_CAPABILITY_SHORT_PREAMBLE
)
1292 printf(" ShortPreamble");
1293 if (capa
& WLAN_CAPABILITY_PBCC
)
1295 if (capa
& WLAN_CAPABILITY_CHANNEL_AGILITY
)
1296 printf(" ChannelAgility");
1297 if (capa
& WLAN_CAPABILITY_SPECTRUM_MGMT
)
1298 printf(" SpectrumMgmt");
1299 if (capa
& WLAN_CAPABILITY_QOS
)
1301 if (capa
& WLAN_CAPABILITY_SHORT_SLOT_TIME
)
1302 printf(" ShortSlotTime");
1303 if (capa
& WLAN_CAPABILITY_APSD
)
1305 if (capa
& WLAN_CAPABILITY_RADIO_MEASURE
)
1306 printf(" RadioMeasure");
1307 if (capa
& WLAN_CAPABILITY_DSSS_OFDM
)
1308 printf(" DSSS-OFDM");
1309 if (capa
& WLAN_CAPABILITY_DEL_BACK
)
1310 printf(" DelayedBACK");
1311 if (capa
& WLAN_CAPABILITY_IMM_BACK
)
1312 printf(" ImmediateBACK");
1315 static int print_bss_handler(struct nl_msg
*msg
, void *arg
)
1317 struct nlattr
*tb
[NL80211_ATTR_MAX
+ 1];
1318 struct genlmsghdr
*gnlh
= nlmsg_data(nlmsg_hdr(msg
));
1319 struct nlattr
*bss
[NL80211_BSS_MAX
+ 1];
1320 char mac_addr
[20], dev
[20];
1321 static struct nla_policy bss_policy
[NL80211_BSS_MAX
+ 1] = {
1322 [NL80211_BSS_TSF
] = { .type
= NLA_U64
},
1323 [NL80211_BSS_FREQUENCY
] = { .type
= NLA_U32
},
1324 [NL80211_BSS_BSSID
] = { },
1325 [NL80211_BSS_BEACON_INTERVAL
] = { .type
= NLA_U16
},
1326 [NL80211_BSS_CAPABILITY
] = { .type
= NLA_U16
},
1327 [NL80211_BSS_INFORMATION_ELEMENTS
] = { },
1328 [NL80211_BSS_SIGNAL_MBM
] = { .type
= NLA_U32
},
1329 [NL80211_BSS_SIGNAL_UNSPEC
] = { .type
= NLA_U8
},
1330 [NL80211_BSS_STATUS
] = { .type
= NLA_U32
},
1331 [NL80211_BSS_SEEN_MS_AGO
] = { .type
= NLA_U32
},
1332 [NL80211_BSS_BEACON_IES
] = { },
1334 struct scan_params
*params
= arg
;
1335 int show
= params
->show_both_ie_sets
? 2 : 1;
1336 bool is_dmg
= false;
1338 nla_parse(tb
, NL80211_ATTR_MAX
, genlmsg_attrdata(gnlh
, 0),
1339 genlmsg_attrlen(gnlh
, 0), NULL
);
1341 if (!tb
[NL80211_ATTR_BSS
]) {
1342 fprintf(stderr
, "bss info missing!\n");
1345 if (nla_parse_nested(bss
, NL80211_BSS_MAX
,
1346 tb
[NL80211_ATTR_BSS
],
1348 fprintf(stderr
, "failed to parse nested attributes!\n");
1352 if (!bss
[NL80211_BSS_BSSID
])
1355 mac_addr_n2a(mac_addr
, nla_data(bss
[NL80211_BSS_BSSID
]));
1356 printf("BSS %s", mac_addr
);
1357 if (tb
[NL80211_ATTR_IFINDEX
]) {
1358 if_indextoname(nla_get_u32(tb
[NL80211_ATTR_IFINDEX
]), dev
);
1359 printf("(on %s)", dev
);
1362 if (bss
[NL80211_BSS_STATUS
]) {
1363 switch (nla_get_u32(bss
[NL80211_BSS_STATUS
])) {
1364 case NL80211_BSS_STATUS_AUTHENTICATED
:
1365 printf(" -- authenticated");
1367 case NL80211_BSS_STATUS_ASSOCIATED
:
1368 printf(" -- associated");
1370 case NL80211_BSS_STATUS_IBSS_JOINED
:
1371 printf(" -- joined");
1374 printf(" -- unknown status: %d",
1375 nla_get_u32(bss
[NL80211_BSS_STATUS
]));
1381 if (bss
[NL80211_BSS_TSF
]) {
1382 unsigned long long tsf
;
1383 tsf
= (unsigned long long)nla_get_u64(bss
[NL80211_BSS_TSF
]);
1384 printf("\tTSF: %llu usec (%llud, %.2lld:%.2llu:%.2llu)\n",
1385 tsf
, tsf
/1000/1000/60/60/24, (tsf
/1000/1000/60/60) % 24,
1386 (tsf
/1000/1000/60) % 60, (tsf
/1000/1000) % 60);
1388 if (bss
[NL80211_BSS_FREQUENCY
]) {
1389 int freq
= nla_get_u32(bss
[NL80211_BSS_FREQUENCY
]);
1390 printf("\tfreq: %d\n", freq
);
1394 if (bss
[NL80211_BSS_BEACON_INTERVAL
])
1395 printf("\tbeacon interval: %d TUs\n",
1396 nla_get_u16(bss
[NL80211_BSS_BEACON_INTERVAL
]));
1397 if (bss
[NL80211_BSS_CAPABILITY
]) {
1398 __u16 capa
= nla_get_u16(bss
[NL80211_BSS_CAPABILITY
]);
1399 printf("\tcapability:");
1401 print_capa_dmg(capa
);
1403 print_capa_non_dmg(capa
);
1404 printf(" (0x%.4x)\n", capa
);
1406 if (bss
[NL80211_BSS_SIGNAL_MBM
]) {
1407 int s
= nla_get_u32(bss
[NL80211_BSS_SIGNAL_MBM
]);
1408 printf("\tsignal: %d.%.2d dBm\n", s
/100, s
%100);
1410 if (bss
[NL80211_BSS_SIGNAL_UNSPEC
]) {
1411 unsigned char s
= nla_get_u8(bss
[NL80211_BSS_SIGNAL_UNSPEC
]);
1412 printf("\tsignal: %d/100\n", s
);
1414 if (bss
[NL80211_BSS_SEEN_MS_AGO
]) {
1415 int age
= nla_get_u32(bss
[NL80211_BSS_SEEN_MS_AGO
]);
1416 printf("\tlast seen: %d ms ago\n", age
);
1419 if (bss
[NL80211_BSS_INFORMATION_ELEMENTS
] && show
--) {
1420 if (bss
[NL80211_BSS_BEACON_IES
])
1421 printf("\tInformation elements from Probe Response "
1423 print_ies(nla_data(bss
[NL80211_BSS_INFORMATION_ELEMENTS
]),
1424 nla_len(bss
[NL80211_BSS_INFORMATION_ELEMENTS
]),
1425 params
->unknown
, params
->type
);
1427 if (bss
[NL80211_BSS_BEACON_IES
] && show
--) {
1428 printf("\tInformation elements from Beacon frame:\n");
1429 print_ies(nla_data(bss
[NL80211_BSS_BEACON_IES
]),
1430 nla_len(bss
[NL80211_BSS_BEACON_IES
]),
1431 params
->unknown
, params
->type
);
1437 static struct scan_params scan_params
;
1439 static int handle_scan_dump(struct nl80211_state
*state
,
1442 int argc
, char **argv
,
1448 memset(&scan_params
, 0, sizeof(scan_params
));
1450 if (argc
== 1 && !strcmp(argv
[0], "-u"))
1451 scan_params
.unknown
= true;
1452 else if (argc
== 1 && !strcmp(argv
[0], "-b"))
1453 scan_params
.show_both_ie_sets
= true;
1455 scan_params
.type
= PRINT_SCAN
;
1457 nl_cb_set(cb
, NL_CB_VALID
, NL_CB_CUSTOM
, print_bss_handler
,
1462 static int handle_scan_combined(struct nl80211_state
*state
,
1465 int argc
, char **argv
,
1469 static char *dump_argv
[] = {
1475 static const __u32 cmds
[] = {
1476 NL80211_CMD_NEW_SCAN_RESULTS
,
1477 NL80211_CMD_SCAN_ABORTED
,
1479 int trig_argc
, dump_argc
, err
;
1481 if (argc
>= 3 && !strcmp(argv
[2], "-u")) {
1483 dump_argv
[3] = "-u";
1484 } else if (argc
>= 3 && !strcmp(argv
[2], "-b")) {
1486 dump_argv
[3] = "-b";
1490 trig_argc
= 3 + (argc
- 2) + (3 - dump_argc
);
1491 trig_argv
= calloc(trig_argc
, sizeof(*trig_argv
));
1494 trig_argv
[0] = argv
[0];
1495 trig_argv
[1] = "scan";
1496 trig_argv
[2] = "trigger";
1498 for (i
= 0; i
< argc
- 2 - (dump_argc
- 3); i
++)
1499 trig_argv
[i
+ 3] = argv
[i
+ 2 + (dump_argc
- 3)];
1500 err
= handle_cmd(state
, id
, trig_argc
, trig_argv
);
1506 * WARNING: DO NOT COPY THIS CODE INTO YOUR APPLICATION
1508 * This code has a bug, which requires creating a separate
1509 * nl80211 socket to fix:
1510 * It is possible for a NL80211_CMD_NEW_SCAN_RESULTS or
1511 * NL80211_CMD_SCAN_ABORTED message to be sent by the kernel
1512 * before (!) we listen to it, because we only start listening
1513 * after we send our scan request.
1515 * Doing it the other way around has a race condition as well,
1516 * if you first open the events socket you may get a notification
1517 * for a previous scan.
1519 * The only proper way to fix this would be to listen to events
1520 * before sending the command, and for the kernel to send the
1521 * scan request along with the event, so that you can match up
1522 * whether the scan you requested was finished or aborted (this
1523 * may result in processing a scan that another application
1524 * requested, but that doesn't seem to be a problem).
1526 * Alas, the kernel doesn't do that (yet).
1529 if (listen_events(state
, ARRAY_SIZE(cmds
), cmds
) ==
1530 NL80211_CMD_SCAN_ABORTED
) {
1531 printf("scan aborted!\n");
1535 dump_argv
[0] = argv
[0];
1536 return handle_cmd(state
, id
, dump_argc
, dump_argv
);
1538 TOPLEVEL(scan
, "[-u] [freq <freq>*] [ies <hex as 00:11:..>] [lowpri,flush,ap-force] [ssid <ssid>*|passive]", 0, 0,
1539 CIB_NETDEV
, handle_scan_combined
,
1540 "Scan on the given frequencies and probe for the given SSIDs\n"
1541 "(or wildcard if not given) unless passive scanning is requested.\n"
1542 "If -u is specified print unknown data in the scan results.\n"
1543 "Specified (vendor) IEs must be well-formed.");
1544 COMMAND(scan
, dump
, "[-u]",
1545 NL80211_CMD_GET_SCAN
, NLM_F_DUMP
, CIB_NETDEV
, handle_scan_dump
,
1546 "Dump the current scan results. If -u is specified, print unknown\n"
1547 "data in scan results.");
1548 COMMAND(scan
, trigger
, "[freq <freq>*] [ies <hex as 00:11:..>] [lowpri,flush,ap-force] [ssid <ssid>*|passive]",
1549 NL80211_CMD_TRIGGER_SCAN
, 0, CIB_NETDEV
, handle_scan
,
1550 "Trigger a scan on the given frequencies with probing for the given\n"
1551 "SSIDs (or wildcard if not given) unless passive scanning is requested.");