2 * iwinfo - Wireless Information Library - NL80211 Backend
4 * Copyright (C) 2010-2013 Jo-Philipp Wich <xm@subsignal.org>
6 * The iwinfo library is free software: you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License version 2
8 * as published by the Free Software Foundation.
10 * The iwinfo library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
13 * See the GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License along
16 * with the iwinfo library. If not, see http://www.gnu.org/licenses/.
18 * The signal handling code is derived from the official madwifi tools,
19 * wlanconfig.c in particular. The encryption property handling was
20 * inspired by the hostapd madwifi driver.
22 * Parts of this code are derived from the Linux iw utility.
32 #include "iwinfo_nl80211.h"
34 #define min(x, y) ((x) < (y)) ? (x) : (y)
36 #define BIT(x) (1ULL<<(x))
38 static struct nl80211_state
*nls
= NULL
;
40 static void nl80211_close(void)
45 genl_family_put(nls
->nlctrl
);
48 genl_family_put(nls
->nl80211
);
51 nl_socket_free(nls
->nl_sock
);
54 nl_cache_free(nls
->nl_cache
);
61 static int nl80211_init(void)
67 nls
= malloc(sizeof(struct nl80211_state
));
73 memset(nls
, 0, sizeof(*nls
));
75 nls
->nl_sock
= nl_socket_alloc();
81 if (genl_connect(nls
->nl_sock
)) {
86 fd
= nl_socket_get_fd(nls
->nl_sock
);
87 if (fcntl(fd
, F_SETFD
, fcntl(fd
, F_GETFD
) | FD_CLOEXEC
) < 0) {
92 if (genl_ctrl_alloc_cache(nls
->nl_sock
, &nls
->nl_cache
)) {
97 nls
->nl80211
= genl_ctrl_search_by_name(nls
->nl_cache
, "nl80211");
103 nls
->nlctrl
= genl_ctrl_search_by_name(nls
->nl_cache
, "nlctrl");
118 static int nl80211_readint(const char *path
)
124 if ((fd
= open(path
, O_RDONLY
)) > -1)
126 if (read(fd
, buffer
, sizeof(buffer
)) > 0)
135 static int nl80211_readstr(const char *path
, char *buffer
, int length
)
140 if ((fd
= open(path
, O_RDONLY
)) > -1)
142 if ((rv
= read(fd
, buffer
, length
- 1)) > 0)
144 if (buffer
[rv
- 1] == '\n')
156 static int nl80211_get_band(int nla_type
)
160 case NL80211_BAND_2GHZ
:
161 return IWINFO_BAND_24
;
162 case NL80211_BAND_5GHZ
:
163 return IWINFO_BAND_5
;
164 case NL80211_BAND_6GHZ
:
165 return IWINFO_BAND_6
;
166 case NL80211_BAND_60GHZ
:
167 return IWINFO_BAND_60
;
174 static int nl80211_msg_error(struct sockaddr_nl
*nla
,
175 struct nlmsgerr
*err
, void *arg
)
182 static int nl80211_msg_finish(struct nl_msg
*msg
, void *arg
)
189 static int nl80211_msg_ack(struct nl_msg
*msg
, void *arg
)
196 static int nl80211_msg_response(struct nl_msg
*msg
, void *arg
)
201 static void nl80211_free(struct nl80211_msg_conveyor
*cv
)
216 static struct nl80211_msg_conveyor
* nl80211_new(struct genl_family
*family
,
219 static struct nl80211_msg_conveyor cv
;
221 struct nl_msg
*req
= NULL
;
222 struct nl_cb
*cb
= NULL
;
228 cb
= nl_cb_alloc(NL_CB_DEFAULT
);
232 genlmsg_put(req
, 0, 0, genl_family_get_id(family
), 0, flags
, cmd
, 0);
246 static struct nl80211_msg_conveyor
* nl80211_ctl(int cmd
, int flags
)
248 if (nl80211_init() < 0)
251 return nl80211_new(nls
->nlctrl
, cmd
, flags
);
254 static const char *nl80211_phy_path_str(const char *phyname
)
256 static char path
[PATH_MAX
];
257 const char *prefix
= "/sys/devices/";
258 int prefix_len
= strlen(prefix
);
261 char buf
[512], *link
;
266 snprintf(buf
, sizeof(buf
), "/sys/class/ieee80211/%s/index", phyname
);
267 phy_idx
= nl80211_readint(buf
);
271 buf_len
= snprintf(buf
, sizeof(buf
), "/sys/class/ieee80211/%s/device", phyname
);
272 link
= realpath(buf
, path
);
276 if (strncmp(link
, prefix
, prefix_len
) != 0)
281 prefix
= "platform/";
282 prefix_len
= strlen(prefix
);
283 if (!strncmp(link
, prefix
, prefix_len
) && strstr(link
, "/pci"))
286 snprintf(buf
+ buf_len
, sizeof(buf
) - buf_len
, "/ieee80211");
291 while ((e
= readdir(d
)) != NULL
) {
294 snprintf(buf
, sizeof(buf
), "/sys/class/ieee80211/%s/index", e
->d_name
);
295 cur_idx
= nl80211_readint(buf
);
299 if (cur_idx
>= phy_idx
)
310 offset
= link
- path
+ strlen(link
);
311 snprintf(path
+ offset
, sizeof(path
) - offset
, "+%d", seq
);
316 static int nl80211_phy_idx_from_path(const char *path
)
320 const char *cur_path
;
329 path_len
= strlen(path
);
333 d
= opendir("/sys/class/ieee80211");
337 while ((e
= readdir(d
)) != NULL
) {
338 cur_path
= nl80211_phy_path_str(e
->d_name
);
342 cur_path_len
= strlen(cur_path
);
343 if (cur_path_len
< path_len
)
346 if (strcmp(cur_path
+ cur_path_len
- path_len
, path
) != 0)
349 snprintf(buf
, sizeof(buf
), "/sys/class/ieee80211/%s/index", e
->d_name
);
350 idx
= nl80211_readint(buf
);
361 static int nl80211_phy_idx_from_macaddr(const char *opt
)
370 snprintf(buf
, sizeof(buf
), "/sys/class/ieee80211/*"); /**/
371 if (glob(buf
, 0, NULL
, &gl
))
374 for (i
= 0; i
< gl
.gl_pathc
; i
++)
376 snprintf(buf
, sizeof(buf
), "%s/macaddress", gl
.gl_pathv
[i
]);
377 if (nl80211_readstr(buf
, buf
, sizeof(buf
)) <= 0)
380 if (fnmatch(opt
, buf
, FNM_CASEFOLD
))
383 snprintf(buf
, sizeof(buf
), "%s/index", gl
.gl_pathv
[i
]);
384 if ((idx
= nl80211_readint(buf
)) > -1)
393 static int nl80211_phy_idx_from_phy(const char *opt
)
400 snprintf(buf
, sizeof(buf
), "/sys/class/ieee80211/%s/index", opt
);
401 return nl80211_readint(buf
);
404 static int nl80211_phy_idx_from_uci(const char *name
)
406 struct uci_section
*s
;
410 s
= iwinfo_uci_get_radio(name
, "mac80211");
414 opt
= uci_lookup_option_string(uci_ctx
, s
, "path");
415 idx
= nl80211_phy_idx_from_path(opt
);
419 opt
= uci_lookup_option_string(uci_ctx
, s
, "macaddr");
420 idx
= nl80211_phy_idx_from_macaddr(opt
);
424 opt
= uci_lookup_option_string(uci_ctx
, s
, "phy");
425 idx
= nl80211_phy_idx_from_phy(opt
);
432 static bool nl80211_is_ifname(const char *name
)
435 char buffer
[PATH_MAX
];
437 snprintf(buffer
, sizeof(buffer
), "/sys/class/net/%s", name
);
438 return !lstat(buffer
, &st
);
441 static struct nl80211_msg_conveyor
* nl80211_msg(const char *ifname
,
444 unsigned int ifidx
= 0;
446 struct nl80211_msg_conveyor
*cv
;
451 if (nl80211_init() < 0)
454 if (!strncmp(ifname
, "mon.", 4))
455 ifidx
= if_nametoindex(&ifname
[4]);
456 else if (nl80211_is_ifname(ifname
))
457 ifidx
= if_nametoindex(ifname
);
460 phyidx
= nl80211_phy_idx_from_phy(ifname
);
462 phyidx
= nl80211_phy_idx_from_uci(ifname
);
465 /* Valid ifidx must be greater than 0 */
466 if ((ifidx
<= 0) && (phyidx
< 0))
469 cv
= nl80211_new(nls
->nl80211
, cmd
, flags
);
474 NLA_PUT_U32(cv
->msg
, NL80211_ATTR_IFINDEX
, ifidx
);
475 else if (phyidx
> -1)
476 NLA_PUT_U32(cv
->msg
, NL80211_ATTR_WIPHY
, phyidx
);
485 static int nl80211_send(struct nl80211_msg_conveyor
*cv
,
486 int (*cb_func
)(struct nl_msg
*, void *),
489 static struct nl80211_msg_conveyor rcv
;
493 nl_cb_set(cv
->cb
, NL_CB_VALID
, NL_CB_CUSTOM
, cb_func
, cb_arg
);
495 nl_cb_set(cv
->cb
, NL_CB_VALID
, NL_CB_CUSTOM
, nl80211_msg_response
, &rcv
);
497 err
= nl_send_auto_complete(nls
->nl_sock
, cv
->msg
);
504 nl_cb_err(cv
->cb
, NL_CB_CUSTOM
, nl80211_msg_error
, &err
);
505 nl_cb_set(cv
->cb
, NL_CB_FINISH
, NL_CB_CUSTOM
, nl80211_msg_finish
, &err
);
506 nl_cb_set(cv
->cb
, NL_CB_ACK
, NL_CB_CUSTOM
, nl80211_msg_ack
, &err
);
509 nl_recvmsgs(nls
->nl_sock
, cv
->cb
);
516 static int nl80211_request(const char *ifname
, int cmd
, int flags
,
517 int (*cb_func
)(struct nl_msg
*, void *),
520 struct nl80211_msg_conveyor
*cv
;
522 cv
= nl80211_msg(ifname
, cmd
, flags
);
527 return nl80211_send(cv
, cb_func
, cb_arg
);
530 static struct nlattr
** nl80211_parse(struct nl_msg
*msg
)
532 struct genlmsghdr
*gnlh
= nlmsg_data(nlmsg_hdr(msg
));
533 static struct nlattr
*attr
[NL80211_ATTR_MAX
+ 1];
535 nla_parse(attr
, NL80211_ATTR_MAX
, genlmsg_attrdata(gnlh
, 0),
536 genlmsg_attrlen(gnlh
, 0), NULL
);
541 static int nl80211_get_protocol_features_cb(struct nl_msg
*msg
, void *arg
)
543 uint32_t *features
= arg
;
544 struct nlattr
**attr
= nl80211_parse(msg
);
546 if (attr
[NL80211_ATTR_PROTOCOL_FEATURES
])
547 *features
= nla_get_u32(attr
[NL80211_ATTR_PROTOCOL_FEATURES
]);
552 static int nl80211_get_protocol_features(const char *ifname
)
554 struct nl80211_msg_conveyor
*req
;
555 uint32_t features
= 0;
557 req
= nl80211_msg(ifname
, NL80211_CMD_GET_PROTOCOL_FEATURES
, 0);
559 nl80211_send(req
, nl80211_get_protocol_features_cb
, &features
);
566 static int nl80211_subscribe_cb(struct nl_msg
*msg
, void *arg
)
568 struct nl80211_group_conveyor
*cv
= arg
;
570 struct nlattr
**attr
= nl80211_parse(msg
);
571 struct nlattr
*mgrpinfo
[CTRL_ATTR_MCAST_GRP_MAX
+ 1];
575 if (!attr
[CTRL_ATTR_MCAST_GROUPS
])
578 nla_for_each_nested(mgrp
, attr
[CTRL_ATTR_MCAST_GROUPS
], mgrpidx
)
580 nla_parse(mgrpinfo
, CTRL_ATTR_MCAST_GRP_MAX
,
581 nla_data(mgrp
), nla_len(mgrp
), NULL
);
583 if (mgrpinfo
[CTRL_ATTR_MCAST_GRP_ID
] &&
584 mgrpinfo
[CTRL_ATTR_MCAST_GRP_NAME
] &&
585 !strncmp(nla_data(mgrpinfo
[CTRL_ATTR_MCAST_GRP_NAME
]),
586 cv
->name
, nla_len(mgrpinfo
[CTRL_ATTR_MCAST_GRP_NAME
])))
588 cv
->id
= nla_get_u32(mgrpinfo
[CTRL_ATTR_MCAST_GRP_ID
]);
596 static int nl80211_subscribe(const char *family
, const char *group
)
598 struct nl80211_group_conveyor cv
= { .name
= group
, .id
= -ENOENT
};
599 struct nl80211_msg_conveyor
*req
;
602 req
= nl80211_ctl(CTRL_CMD_GETFAMILY
, 0);
605 NLA_PUT_STRING(req
->msg
, CTRL_ATTR_FAMILY_NAME
, family
);
606 err
= nl80211_send(req
, nl80211_subscribe_cb
, &cv
);
611 return nl_socket_add_membership(nls
->nl_sock
, cv
.id
);
621 static int nl80211_wait_cb(struct nl_msg
*msg
, void *arg
)
623 struct nl80211_event_conveyor
*cv
= arg
;
624 struct genlmsghdr
*gnlh
= nlmsg_data(nlmsg_hdr(msg
));
626 if (cv
->wait
[gnlh
->cmd
/ 32] & (1 << (gnlh
->cmd
% 32)))
627 cv
->recv
= gnlh
->cmd
;
632 static int nl80211_wait_seq_check(struct nl_msg
*msg
, void *arg
)
637 static int __nl80211_wait(const char *family
, const char *group
, ...)
639 struct nl80211_event_conveyor cv
= { };
645 if (nl80211_subscribe(family
, group
))
648 cb
= nl_cb_alloc(NL_CB_DEFAULT
);
653 nl_cb_err(cb
, NL_CB_CUSTOM
, nl80211_msg_error
, &err
);
654 nl_cb_set(cb
, NL_CB_SEQ_CHECK
, NL_CB_CUSTOM
, nl80211_wait_seq_check
, NULL
);
655 nl_cb_set(cb
, NL_CB_VALID
, NL_CB_CUSTOM
, nl80211_wait_cb
, &cv
);
659 for (cmd
= va_arg(ap
, int); cmd
!= 0; cmd
= va_arg(ap
, int))
660 cv
.wait
[cmd
/ 32] |= (1 << (cmd
% 32));
664 while (!cv
.recv
&& !err
)
665 nl_recvmsgs(nls
->nl_sock
, cb
);
672 #define nl80211_wait(family, group, ...) \
673 __nl80211_wait(family, group, __VA_ARGS__, 0)
675 /* This is linux's ieee80211_freq_khz_to_channel() which is:
676 * SPDX-License-Identifier: GPL-2.0
677 * Copyright 2007-2009 Johannes Berg <johannes@sipsolutions.net>
678 * Copyright 2013-2014 Intel Mobile Communications GmbH
679 * Copyright 2017 Intel Deutschland GmbH
680 * Copyright (C) 2018-2022 Intel Corporation
682 static int nl80211_freq2channel(int freq
)
686 else if (freq
< 2484)
687 return (freq
- 2407) / 5;
688 else if (freq
>= 4910 && freq
<= 4980)
689 return (freq
- 4000) / 5;
690 else if (freq
< 5925)
691 return (freq
- 5000) / 5;
692 else if (freq
== 5935)
694 else if (freq
<= 45000) /* DMG band lower limit */
695 /* see 802.11ax D6.1 27.3.22.2 */
696 return (freq
- 5950) / 5;
697 else if (freq
>= 58320 && freq
<= 70200)
698 return (freq
- 56160) / 2160;
703 /* This is linux's ieee80211_channel_to_freq_khz() which is:
704 * SPDX-License-Identifier: GPL-2.0
705 * Copyright 2007-2009 Johannes Berg <johannes@sipsolutions.net>
706 * Copyright 2013-2014 Intel Mobile Communications GmbH
707 * Copyright 2017 Intel Deutschland GmbH
708 * Copyright (C) 2018-2022 Intel Corporation
710 static int nl80211_channel2freq(int channel
, const char *band
, bool ax
)
715 if (!band
|| band
[0] != 'a')
719 else if (channel
< 14)
720 return (channel
* 5) + 2407;
722 else if (strcmp(band
, "ad") == 0)
725 return 56160 + 2160 * channel
;
732 return (channel
* 5) + 5950;
736 if (channel
>= 182 && channel
<= 196)
737 return (channel
* 5) + 4000;
739 return (channel
* 5) + 5000;
745 static uint8_t nl80211_freq2band(int freq
)
747 if (freq
>= 2412 && freq
<= 2484)
748 return IWINFO_BAND_24
;
749 else if (freq
>= 5160 && freq
<= 5885)
750 return IWINFO_BAND_5
;
751 else if (freq
>= 5925 && freq
<= 7125)
752 return IWINFO_BAND_6
;
753 else if (freq
>= 58320 && freq
<= 69120)
754 return IWINFO_BAND_60
;
759 static int nl80211_phyname_cb(struct nl_msg
*msg
, void *arg
)
762 struct nlattr
**attr
= nl80211_parse(msg
);
764 if (attr
[NL80211_ATTR_WIPHY_NAME
])
765 memcpy(buf
, nla_data(attr
[NL80211_ATTR_WIPHY_NAME
]),
766 nla_len(attr
[NL80211_ATTR_WIPHY_NAME
]));
773 static char * nl80211_ifname2phy(const char *ifname
)
775 static char phy
[32] = { 0 };
777 memset(phy
, 0, sizeof(phy
));
779 nl80211_request(ifname
, NL80211_CMD_GET_WIPHY
, 0,
780 nl80211_phyname_cb
, phy
);
782 return phy
[0] ? phy
: NULL
;
785 static char * nl80211_phyidx2name(unsigned int idx
)
787 struct nl80211_msg_conveyor
*cv
;
788 static char phy
[32] = { 0 };
790 if (nl80211_init() < 0)
793 cv
= nl80211_new(nls
->nl80211
, NL80211_CMD_GET_WIPHY
, 0);
797 NLA_PUT_U32(cv
->msg
, NL80211_ATTR_WIPHY
, idx
);
799 memset(phy
, 0, sizeof(phy
));
800 nl80211_send(cv
, nl80211_phyname_cb
, phy
);
802 return phy
[0] ? phy
: NULL
;
808 static char * nl80211_phy2ifname(const char *ifname
)
810 int ifidx
= -1, cifidx
= -1, phyidx
= -1;
812 static char nif
[IFNAMSIZ
] = { 0 };
817 /* Only accept phy name of the form phy%d or radio%d */
821 phyidx
= nl80211_phy_idx_from_phy(ifname
);
823 phyidx
= nl80211_phy_idx_from_uci(ifname
);;
827 memset(nif
, 0, sizeof(nif
));
831 if ((d
= opendir("/sys/class/net")) != NULL
)
833 while ((e
= readdir(d
)) != NULL
)
835 snprintf(buffer
, sizeof(buffer
),
836 "/sys/class/net/%s/phy80211/index", e
->d_name
);
838 if (nl80211_readint(buffer
) == phyidx
)
840 snprintf(buffer
, sizeof(buffer
),
841 "/sys/class/net/%s/ifindex", e
->d_name
);
843 if ((cifidx
= nl80211_readint(buffer
)) >= 0 &&
844 ((ifidx
< 0) || (cifidx
< ifidx
)))
847 strncpy(nif
, e
->d_name
, sizeof(nif
) - 1);
856 return nif
[0] ? nif
: NULL
;
859 static int nl80211_get_mode_cb(struct nl_msg
*msg
, void *arg
)
862 struct nlattr
**tb
= nl80211_parse(msg
);
863 const int ifmodes
[NL80211_IFTYPE_MAX
+ 1] = {
864 IWINFO_OPMODE_UNKNOWN
, /* unspecified */
865 IWINFO_OPMODE_ADHOC
, /* IBSS */
866 IWINFO_OPMODE_CLIENT
, /* managed */
867 IWINFO_OPMODE_MASTER
, /* AP */
868 IWINFO_OPMODE_AP_VLAN
, /* AP/VLAN */
869 IWINFO_OPMODE_WDS
, /* WDS */
870 IWINFO_OPMODE_MONITOR
, /* monitor */
871 IWINFO_OPMODE_MESHPOINT
, /* mesh point */
872 IWINFO_OPMODE_P2P_CLIENT
, /* P2P-client */
873 IWINFO_OPMODE_P2P_GO
, /* P2P-GO */
876 if (tb
[NL80211_ATTR_IFTYPE
])
877 *mode
= ifmodes
[nla_get_u32(tb
[NL80211_ATTR_IFTYPE
])];
883 static int nl80211_get_mode(const char *ifname
, int *buf
)
887 *buf
= IWINFO_OPMODE_UNKNOWN
;
889 res
= nl80211_phy2ifname(ifname
);
891 nl80211_request(res
? res
: ifname
, NL80211_CMD_GET_INTERFACE
, 0,
892 nl80211_get_mode_cb
, buf
);
894 return (*buf
== IWINFO_OPMODE_UNKNOWN
) ? -1 : 0;
897 static int __nl80211_hostapd_query(const char *ifname
, ...)
900 char *phy
, *search
, *dest
, *key
, *val
, buf
[128];
901 int len
, mode
, found
= 0, match
= 1;
904 if (nl80211_get_mode(ifname
, &mode
))
907 if (mode
!= IWINFO_OPMODE_MASTER
&& mode
!= IWINFO_OPMODE_AP_VLAN
)
910 phy
= nl80211_ifname2phy(ifname
);
915 snprintf(buf
, sizeof(buf
), "/var/run/hostapd-%s.conf", phy
);
916 fp
= fopen(buf
, "r");
921 va_start(ap
, ifname
);
923 /* clear all destination buffers */
926 while ((search
= va_arg(ap_cur
, char *)) != NULL
)
928 dest
= va_arg(ap_cur
, char *);
929 len
= va_arg(ap_cur
, int);
931 memset(dest
, 0, len
);
936 /* iterate applicable lines and copy found values into dest buffers */
937 while (fgets(buf
, sizeof(buf
), fp
))
939 key
= strtok(buf
, " =\t\n");
940 val
= strtok(NULL
, "\n");
942 if (!key
|| !val
|| !*key
|| *key
== '#')
945 if (!strcmp(key
, "interface") || !strcmp(key
, "bss"))
946 match
= !strcmp(ifname
, val
);
953 while ((search
= va_arg(ap_cur
, char *)) != NULL
)
955 dest
= va_arg(ap_cur
, char *);
956 len
= va_arg(ap_cur
, int);
958 if (!strcmp(search
, key
))
960 strncpy(dest
, val
, len
- 1);
976 #define nl80211_hostapd_query(ifname, ...) \
977 __nl80211_hostapd_query(ifname, ##__VA_ARGS__, NULL)
980 static inline int nl80211_wpactl_recv(int sock
, char *buf
, int blen
)
983 struct timeval tv
= { 0, 256000 };
988 memset(buf
, 0, blen
);
990 if (select(sock
+ 1, &rfds
, NULL
, NULL
, &tv
) < 0)
993 if (!FD_ISSET(sock
, &rfds
))
996 return recv(sock
, buf
, blen
- 1, 0);
999 static int nl80211_wpactl_connect(const char *ifname
, struct sockaddr_un
*local
)
1001 struct sockaddr_un remote
= { 0 };
1002 size_t remote_length
, local_length
;
1004 int sock
= socket(PF_UNIX
, SOCK_DGRAM
, 0);
1008 remote
.sun_family
= AF_UNIX
;
1009 remote_length
= sizeof(remote
.sun_family
) +
1010 sprintf(remote
.sun_path
, "/var/run/wpa_supplicant/%s", ifname
);
1012 /* Set client socket file permissions so that bind() creates the client
1013 * socket with these permissions and there is no need to try to change
1014 * them with chmod() after bind() which would have potential issues with
1015 * race conditions. These permissions are needed to make sure the server
1016 * side (wpa_supplicant or hostapd) can reply to the control interface
1019 * The lchown() calls below after bind() are also part of the needed
1020 * operations to allow the response to go through. Those are using the
1021 * no-deference-symlinks version to avoid races. */
1022 fchmod(sock
, S_IRUSR
| S_IWUSR
| S_IRGRP
| S_IWGRP
);
1024 if (fcntl(sock
, F_SETFD
, fcntl(sock
, F_GETFD
) | FD_CLOEXEC
) < 0)
1030 if (connect(sock
, (struct sockaddr
*)&remote
, remote_length
))
1036 local
->sun_family
= AF_UNIX
;
1037 local_length
= sizeof(local
->sun_family
) +
1038 sprintf(local
->sun_path
, "/var/run/iwinfo-%s-%d", ifname
, getpid());
1040 if (bind(sock
, (struct sockaddr
*)local
, local_length
) < 0)
1046 /* Set group even if we do not have privileges to change owner */
1047 lchown(local
->sun_path
, -1, 101);
1048 lchown(local
->sun_path
, 101, 101);
1053 static int __nl80211_wpactl_query(const char *ifname
, ...)
1056 struct sockaddr_un local
= { 0 };
1057 int len
, mode
, found
= 0, sock
= -1;
1058 char *search
, *dest
, *key
, *val
, *line
, *pos
, buf
[512];
1060 if (nl80211_get_mode(ifname
, &mode
))
1063 if (mode
!= IWINFO_OPMODE_CLIENT
&&
1064 mode
!= IWINFO_OPMODE_ADHOC
&&
1065 mode
!= IWINFO_OPMODE_MESHPOINT
)
1068 sock
= nl80211_wpactl_connect(ifname
, &local
);
1073 va_start(ap
, ifname
);
1075 /* clear all destination buffers */
1076 va_copy(ap_cur
, ap
);
1078 while ((search
= va_arg(ap_cur
, char *)) != NULL
)
1080 dest
= va_arg(ap_cur
, char *);
1081 len
= va_arg(ap_cur
, int);
1083 memset(dest
, 0, len
);
1088 send(sock
, "STATUS", 6, 0);
1092 if (nl80211_wpactl_recv(sock
, buf
, sizeof(buf
)) <= 0)
1098 for (line
= strtok_r(buf
, "\n", &pos
);
1100 line
= strtok_r(NULL
, "\n", &pos
))
1102 key
= strtok(line
, "=");
1103 val
= strtok(NULL
, "\n");
1108 va_copy(ap_cur
, ap
);
1110 while ((search
= va_arg(ap_cur
, char *)) != NULL
)
1112 dest
= va_arg(ap_cur
, char *);
1113 len
= va_arg(ap_cur
, int);
1115 if (!strcmp(search
, key
))
1117 strncpy(dest
, val
, len
- 1);
1132 unlink(local
.sun_path
);
1137 #define nl80211_wpactl_query(ifname, ...) \
1138 __nl80211_wpactl_query(ifname, ##__VA_ARGS__, NULL)
1141 static char * nl80211_ifadd(const char *ifname
)
1143 char path
[PATH_MAX
];
1144 static char nif
[IFNAMSIZ
] = { 0 };
1145 struct nl80211_msg_conveyor
*req
;
1148 req
= nl80211_msg(ifname
, NL80211_CMD_NEW_INTERFACE
, 0);
1151 snprintf(nif
, sizeof(nif
), "tmp.%s", ifname
);
1153 NLA_PUT_STRING(req
->msg
, NL80211_ATTR_IFNAME
, nif
);
1154 NLA_PUT_U32(req
->msg
, NL80211_ATTR_IFTYPE
, NL80211_IFTYPE_STATION
);
1156 nl80211_send(req
, NULL
, NULL
);
1158 snprintf(path
, sizeof(path
) - 1,
1159 "/proc/sys/net/ipv6/conf/%s/disable_ipv6", nif
);
1161 if ((sysfs
= fopen(path
, "w")) != NULL
)
1163 fwrite("0\n", 1, 2, sysfs
);
1176 static void nl80211_ifdel(const char *ifname
)
1178 struct nl80211_msg_conveyor
*req
;
1180 req
= nl80211_msg(ifname
, NL80211_CMD_DEL_INTERFACE
, 0);
1183 NLA_PUT_STRING(req
->msg
, NL80211_ATTR_IFNAME
, ifname
);
1185 nl80211_send(req
, NULL
, NULL
);
1193 static void nl80211_hostapd_hup(const char *ifname
)
1197 char *phy
= nl80211_ifname2phy(ifname
);
1201 snprintf(buf
, sizeof(buf
), "/var/run/wifi-%s.pid", phy
);
1202 if ((fd
= open(buf
, O_RDONLY
)) >= 0)
1204 if (read(fd
, buf
, sizeof(buf
)) > 0)
1216 static int nl80211_probe(const char *ifname
)
1218 return !!nl80211_ifname2phy(ifname
);
1221 struct nl80211_ssid_bssid
{
1222 unsigned char *ssid
;
1223 unsigned char bssid
[7];
1226 static int nl80211_get_macaddr_cb(struct nl_msg
*msg
, void *arg
)
1228 struct nl80211_ssid_bssid
*sb
= arg
;
1229 struct nlattr
**tb
= nl80211_parse(msg
);
1231 if (tb
[NL80211_ATTR_MAC
]) {
1233 memcpy(sb
->bssid
+ 1, nla_data(tb
[NL80211_ATTR_MAC
]),
1234 sizeof(sb
->bssid
) - 1);
1240 static int nl80211_get_ssid_bssid_cb(struct nl_msg
*msg
, void *arg
)
1244 struct nl80211_ssid_bssid
*sb
= arg
;
1245 struct nlattr
**tb
= nl80211_parse(msg
);
1246 struct nlattr
*bss
[NL80211_BSS_MAX
+ 1];
1248 static struct nla_policy bss_policy
[NL80211_BSS_MAX
+ 1] = {
1249 [NL80211_BSS_INFORMATION_ELEMENTS
] = { 0 },
1250 [NL80211_BSS_STATUS
] = { .type
= NLA_U32
},
1253 if (!tb
[NL80211_ATTR_BSS
] ||
1254 nla_parse_nested(bss
, NL80211_BSS_MAX
, tb
[NL80211_ATTR_BSS
],
1256 !bss
[NL80211_BSS_BSSID
] ||
1257 !bss
[NL80211_BSS_STATUS
] ||
1258 !bss
[NL80211_BSS_INFORMATION_ELEMENTS
])
1263 switch (nla_get_u32(bss
[NL80211_BSS_STATUS
]))
1265 case NL80211_BSS_STATUS_ASSOCIATED
:
1266 case NL80211_BSS_STATUS_AUTHENTICATED
:
1267 case NL80211_BSS_STATUS_IBSS_JOINED
:
1271 ie
= nla_data(bss
[NL80211_BSS_INFORMATION_ELEMENTS
]);
1272 ielen
= nla_len(bss
[NL80211_BSS_INFORMATION_ELEMENTS
]);
1274 while (ielen
>= 2 && ielen
>= ie
[1])
1278 memcpy(sb
->ssid
, ie
+ 2, min(ie
[1], IWINFO_ESSID_MAX_SIZE
));
1289 memcpy(sb
->bssid
+ 1, nla_data(bss
[NL80211_BSS_BSSID
]), 6);
1298 static int nl80211_get_ssid(const char *ifname
, char *buf
)
1301 struct nl80211_ssid_bssid sb
= { .ssid
= (unsigned char *)buf
};
1303 /* try to find ssid from scan dump results */
1304 res
= nl80211_phy2ifname(ifname
);
1307 nl80211_request(res
? res
: ifname
, NL80211_CMD_GET_SCAN
, NLM_F_DUMP
,
1308 nl80211_get_ssid_bssid_cb
, &sb
);
1310 /* failed, try to find from hostapd info */
1311 if (sb
.ssid
[0] == 0)
1312 nl80211_hostapd_query(ifname
, "ssid", sb
.ssid
,
1313 IWINFO_ESSID_MAX_SIZE
+ 1);
1315 /* failed, try to obtain Mesh ID */
1316 if (sb
.ssid
[0] == 0)
1317 iwinfo_ubus_query(res
? res
: ifname
, "mesh_id",
1318 buf
, IWINFO_ESSID_MAX_SIZE
+ 1);
1320 return (sb
.ssid
[0] == 0) ? -1 : 0;
1323 static int nl80211_get_bssid(const char *ifname
, char *buf
)
1325 char *res
, bssid
[sizeof("FF:FF:FF:FF:FF:FF\0")];
1326 struct nl80211_ssid_bssid sb
= { };
1328 res
= nl80211_phy2ifname(ifname
);
1330 /* try to obtain mac address via NL80211_CMD_GET_INTERFACE */
1331 nl80211_request(res
? res
: ifname
, NL80211_CMD_GET_INTERFACE
, 0,
1332 nl80211_get_macaddr_cb
, &sb
);
1334 /* failed, try to find bssid from scan dump results */
1335 if (sb
.bssid
[0] == 0)
1336 nl80211_request(res
? res
: ifname
,
1337 NL80211_CMD_GET_SCAN
, NLM_F_DUMP
,
1338 nl80211_get_ssid_bssid_cb
, &sb
);
1340 /* failed, try to find mac from hostapd info */
1341 if ((sb
.bssid
[0] == 0) &&
1342 nl80211_hostapd_query(ifname
, "bssid", bssid
, sizeof(bssid
)))
1345 sb
.bssid
[1] = strtol(&bssid
[0], NULL
, 16);
1346 sb
.bssid
[2] = strtol(&bssid
[3], NULL
, 16);
1347 sb
.bssid
[3] = strtol(&bssid
[6], NULL
, 16);
1348 sb
.bssid
[4] = strtol(&bssid
[9], NULL
, 16);
1349 sb
.bssid
[5] = strtol(&bssid
[12], NULL
, 16);
1350 sb
.bssid
[6] = strtol(&bssid
[15], NULL
, 16);
1355 sprintf(buf
, "%02X:%02X:%02X:%02X:%02X:%02X",
1356 sb
.bssid
[1], sb
.bssid
[2], sb
.bssid
[3],
1357 sb
.bssid
[4], sb
.bssid
[5], sb
.bssid
[6]);
1366 static int nl80211_get_frequency_scan_cb(struct nl_msg
*msg
, void *arg
)
1369 struct nlattr
**attr
= nl80211_parse(msg
);
1370 struct nlattr
*binfo
[NL80211_BSS_MAX
+ 1];
1372 static struct nla_policy bss_policy
[NL80211_BSS_MAX
+ 1] = {
1373 [NL80211_BSS_FREQUENCY
] = { .type
= NLA_U32
},
1374 [NL80211_BSS_STATUS
] = { .type
= NLA_U32
},
1377 if (attr
[NL80211_ATTR_BSS
] &&
1378 !nla_parse_nested(binfo
, NL80211_BSS_MAX
,
1379 attr
[NL80211_ATTR_BSS
], bss_policy
))
1381 if (binfo
[NL80211_BSS_STATUS
] && binfo
[NL80211_BSS_FREQUENCY
])
1382 *freq
= nla_get_u32(binfo
[NL80211_BSS_FREQUENCY
]);
1388 static int nl80211_get_frequency_info_cb(struct nl_msg
*msg
, void *arg
)
1391 struct nlattr
**tb
= nl80211_parse(msg
);
1393 if (tb
[NL80211_ATTR_WIPHY_FREQ
])
1394 *freq
= nla_get_u32(tb
[NL80211_ATTR_WIPHY_FREQ
]);
1399 static int nl80211_get_frequency(const char *ifname
, int *buf
)
1401 char *res
, channel
[4] = { 0 }, hwmode
[3] = { 0 }, ax
[2] = { 0 };
1403 /* try to find frequency from interface info */
1404 res
= nl80211_phy2ifname(ifname
);
1407 nl80211_request(res
? res
: ifname
, NL80211_CMD_GET_INTERFACE
, 0,
1408 nl80211_get_frequency_info_cb
, buf
);
1410 /* failed, try to find frequency from hostapd info */
1412 nl80211_hostapd_query(ifname
, "hw_mode", hwmode
, sizeof(hwmode
),
1413 "channel", channel
, sizeof(channel
),
1414 "ieee80211ax", ax
, sizeof(ax
)) >= 2)
1416 *buf
= nl80211_channel2freq(atoi(channel
), hwmode
, ax
[0] == '1');
1419 /* failed, try to find frequency from scan results */
1422 res
= nl80211_phy2ifname(ifname
);
1424 nl80211_request(res
? res
: ifname
, NL80211_CMD_GET_SCAN
, NLM_F_DUMP
,
1425 nl80211_get_frequency_scan_cb
, buf
);
1428 return (*buf
== 0) ? -1 : 0;
1431 static int nl80211_get_center_freq1_cb(struct nl_msg
*msg
, void *arg
)
1434 struct nlattr
**tb
= nl80211_parse(msg
);
1436 if (tb
[NL80211_ATTR_CENTER_FREQ1
])
1437 *freq
= nla_get_u32(tb
[NL80211_ATTR_CENTER_FREQ1
]);
1442 static int nl80211_get_center_freq1(const char *ifname
, int *buf
)
1446 /* try to find frequency from interface info */
1447 res
= nl80211_phy2ifname(ifname
);
1450 nl80211_request(res
? res
: ifname
, NL80211_CMD_GET_INTERFACE
, 0,
1451 nl80211_get_center_freq1_cb
, buf
);
1453 return (*buf
== 0) ? -1 : 0;
1456 static int nl80211_get_center_freq2_cb(struct nl_msg
*msg
, void *arg
)
1459 struct nlattr
**tb
= nl80211_parse(msg
);
1461 if (tb
[NL80211_ATTR_CENTER_FREQ2
])
1462 *freq
= nla_get_u32(tb
[NL80211_ATTR_CENTER_FREQ2
]);
1467 static int nl80211_get_center_freq2(const char *ifname
, int *buf
)
1471 /* try to find frequency from interface info */
1472 res
= nl80211_phy2ifname(ifname
);
1475 nl80211_request(res
? res
: ifname
, NL80211_CMD_GET_INTERFACE
, 0,
1476 nl80211_get_center_freq2_cb
, buf
);
1478 return (*buf
== 0) ? -1 : 0;
1481 static int nl80211_get_channel(const char *ifname
, int *buf
)
1483 if (!nl80211_get_frequency(ifname
, buf
))
1485 *buf
= nl80211_freq2channel(*buf
);
1492 static int nl80211_get_center_chan1(const char *ifname
, int *buf
)
1494 if (!nl80211_get_center_freq1(ifname
, buf
))
1496 *buf
= nl80211_freq2channel(*buf
);
1503 static int nl80211_get_center_chan2(const char *ifname
, int *buf
)
1505 if (!nl80211_get_center_freq2(ifname
, buf
))
1507 *buf
= nl80211_freq2channel(*buf
);
1514 static int nl80211_get_txpower_cb(struct nl_msg
*msg
, void *arg
)
1517 struct nlattr
**tb
= nl80211_parse(msg
);
1519 if (tb
[NL80211_ATTR_WIPHY_TX_POWER_LEVEL
])
1520 *buf
= iwinfo_mbm2dbm(nla_get_u32(tb
[NL80211_ATTR_WIPHY_TX_POWER_LEVEL
]));
1525 static int nl80211_get_txpower(const char *ifname
, int *buf
)
1529 res
= nl80211_phy2ifname(ifname
);
1532 if (nl80211_request(res
? res
: ifname
, NL80211_CMD_GET_INTERFACE
, 0,
1533 nl80211_get_txpower_cb
, buf
))
1540 static int nl80211_fill_signal_cb(struct nl_msg
*msg
, void *arg
)
1544 struct nl80211_rssi_rate
*rr
= arg
;
1545 struct nlattr
**attr
= nl80211_parse(msg
);
1546 struct nlattr
*sinfo
[NL80211_STA_INFO_MAX
+ 1];
1547 struct nlattr
*rinfo
[NL80211_RATE_INFO_MAX
+ 1];
1549 static struct nla_policy stats_policy
[NL80211_STA_INFO_MAX
+ 1] = {
1550 [NL80211_STA_INFO_INACTIVE_TIME
] = { .type
= NLA_U32
},
1551 [NL80211_STA_INFO_RX_BYTES
] = { .type
= NLA_U32
},
1552 [NL80211_STA_INFO_TX_BYTES
] = { .type
= NLA_U32
},
1553 [NL80211_STA_INFO_RX_PACKETS
] = { .type
= NLA_U32
},
1554 [NL80211_STA_INFO_TX_PACKETS
] = { .type
= NLA_U32
},
1555 [NL80211_STA_INFO_SIGNAL
] = { .type
= NLA_U8
},
1556 [NL80211_STA_INFO_TX_BITRATE
] = { .type
= NLA_NESTED
},
1557 [NL80211_STA_INFO_LLID
] = { .type
= NLA_U16
},
1558 [NL80211_STA_INFO_PLID
] = { .type
= NLA_U16
},
1559 [NL80211_STA_INFO_PLINK_STATE
] = { .type
= NLA_U8
},
1562 static struct nla_policy rate_policy
[NL80211_RATE_INFO_MAX
+ 1] = {
1563 [NL80211_RATE_INFO_BITRATE
] = { .type
= NLA_U16
},
1564 [NL80211_RATE_INFO_MCS
] = { .type
= NLA_U8
},
1565 [NL80211_RATE_INFO_40_MHZ_WIDTH
] = { .type
= NLA_FLAG
},
1566 [NL80211_RATE_INFO_SHORT_GI
] = { .type
= NLA_FLAG
},
1569 if (attr
[NL80211_ATTR_STA_INFO
])
1571 if (!nla_parse_nested(sinfo
, NL80211_STA_INFO_MAX
,
1572 attr
[NL80211_ATTR_STA_INFO
], stats_policy
))
1574 if (sinfo
[NL80211_STA_INFO_SIGNAL
])
1576 dbm
= nla_get_u8(sinfo
[NL80211_STA_INFO_SIGNAL
]);
1577 rr
->rssi
= (rr
->rssi
* rr
->rssi_samples
+ dbm
) / (rr
->rssi_samples
+ 1);
1581 if (sinfo
[NL80211_STA_INFO_TX_BITRATE
])
1583 if (!nla_parse_nested(rinfo
, NL80211_RATE_INFO_MAX
,
1584 sinfo
[NL80211_STA_INFO_TX_BITRATE
],
1587 if (rinfo
[NL80211_RATE_INFO_BITRATE
])
1589 mbit
= nla_get_u16(rinfo
[NL80211_RATE_INFO_BITRATE
]);
1590 rr
->rate
= (rr
->rate
* rr
->rate_samples
+ mbit
) / (rr
->rate_samples
+ 1);
1601 static void nl80211_fill_signal(const char *ifname
, struct nl80211_rssi_rate
*r
)
1606 memset(r
, 0, sizeof(*r
));
1608 if ((d
= opendir("/sys/class/net")) != NULL
)
1610 while ((de
= readdir(d
)) != NULL
)
1612 if (!strncmp(de
->d_name
, ifname
, strlen(ifname
)) &&
1613 (!de
->d_name
[strlen(ifname
)] ||
1614 !strncmp(&de
->d_name
[strlen(ifname
)], ".sta", 4)))
1616 nl80211_request(de
->d_name
, NL80211_CMD_GET_STATION
,
1617 NLM_F_DUMP
, nl80211_fill_signal_cb
, r
);
1625 static int nl80211_get_bitrate(const char *ifname
, int *buf
)
1627 struct nl80211_rssi_rate rr
;
1629 nl80211_fill_signal(ifname
, &rr
);
1631 if (rr
.rate_samples
)
1633 *buf
= (rr
.rate
* 100);
1640 static int nl80211_get_signal(const char *ifname
, int *buf
)
1642 struct nl80211_rssi_rate rr
;
1644 nl80211_fill_signal(ifname
, &rr
);
1646 if (rr
.rssi_samples
)
1655 static int nl80211_get_noise_cb(struct nl_msg
*msg
, void *arg
)
1657 int8_t *noise
= arg
;
1658 struct nlattr
**tb
= nl80211_parse(msg
);
1659 struct nlattr
*si
[NL80211_SURVEY_INFO_MAX
+ 1];
1661 static struct nla_policy sp
[NL80211_SURVEY_INFO_MAX
+ 1] = {
1662 [NL80211_SURVEY_INFO_FREQUENCY
] = { .type
= NLA_U32
},
1663 [NL80211_SURVEY_INFO_NOISE
] = { .type
= NLA_U8
},
1666 if (!tb
[NL80211_ATTR_SURVEY_INFO
])
1669 if (nla_parse_nested(si
, NL80211_SURVEY_INFO_MAX
,
1670 tb
[NL80211_ATTR_SURVEY_INFO
], sp
))
1673 if (!si
[NL80211_SURVEY_INFO_NOISE
])
1676 if (!*noise
|| si
[NL80211_SURVEY_INFO_IN_USE
])
1677 *noise
= (int8_t)nla_get_u8(si
[NL80211_SURVEY_INFO_NOISE
]);
1683 static int nl80211_get_noise(const char *ifname
, int *buf
)
1687 if (nl80211_request(ifname
, NL80211_CMD_GET_SURVEY
, NLM_F_DUMP
,
1688 nl80211_get_noise_cb
, &noise
))
1699 static int nl80211_get_quality(const char *ifname
, int *buf
)
1703 if (!nl80211_get_signal(ifname
, &signal
))
1705 /* A positive signal level is usually just a quality
1706 * value, pass through as-is */
1712 /* The cfg80211 wext compat layer assumes a signal range
1713 * of -110 dBm to -40 dBm, the quality value is derived
1714 * by adding 110 to the signal level */
1719 else if (signal
> -40)
1722 *buf
= (signal
+ 110);
1731 static int nl80211_get_quality_max(const char *ifname
, int *buf
)
1733 /* The cfg80211 wext compat layer assumes a maximum
1740 static int nl80211_check_wepkey(const char *key
)
1744 switch (strlen(key
))
1748 return IWINFO_CIPHER_WEP40
;
1752 return IWINFO_CIPHER_WEP104
;
1763 } wpa_key_mgmt_strings
[] = {
1764 { "IEEE 802.1X/EAP", 0, IWINFO_KMGMT_8021x
},
1765 { "EAP-SUITE-B-192", 4, IWINFO_KMGMT_8021x
},
1766 { "EAP-SUITE-B", 4, IWINFO_KMGMT_8021x
},
1767 { "EAP-SHA384", 4, IWINFO_KMGMT_8021x
},
1768 { "EAP-SHA256", 0, IWINFO_KMGMT_8021x
},
1769 { "PSK-SHA256", 0, IWINFO_KMGMT_PSK
},
1770 { "NONE", 0, IWINFO_KMGMT_NONE
},
1771 { "None", 0, IWINFO_KMGMT_NONE
},
1772 { "PSK", 0, IWINFO_KMGMT_PSK
},
1773 { "EAP", 0, IWINFO_KMGMT_8021x
},
1774 { "SAE", 4, IWINFO_KMGMT_SAE
},
1775 { "OWE", 4, IWINFO_KMGMT_OWE
}
1778 static void parse_wpa_suites(const char *str
, int defversion
,
1779 uint8_t *versions
, uint8_t *suites
)
1783 const char *p
, *q
, *m
, *sep
= " \t\n,-+/";
1789 for (i
= 0; i
< ARRAY_SIZE(wpa_key_mgmt_strings
); i
++)
1791 m
= wpa_key_mgmt_strings
[i
].match
;
1794 if (!strncmp(q
, m
, l
) && (!q
[l
] || strchr(sep
, q
[l
])))
1796 if (wpa_key_mgmt_strings
[i
].version
!= 0)
1797 version
= wpa_key_mgmt_strings
[i
].version
;
1799 version
= defversion
;
1801 *versions
|= version
;
1802 *suites
|= wpa_key_mgmt_strings
[i
].suite
;
1810 q
+= strcspn(q
, sep
);
1812 p
= q
+ strspn(q
, sep
);
1819 } wpa_cipher_strings
[] = {
1820 { "WEP-104", IWINFO_CIPHER_WEP104
},
1821 { "WEP-40", IWINFO_CIPHER_WEP40
},
1822 { "NONE", IWINFO_CIPHER_NONE
},
1823 { "TKIP", IWINFO_CIPHER_TKIP
},
1824 { "CCMP-256",IWINFO_CIPHER_CCMP256
},
1825 { "CCMP", IWINFO_CIPHER_CCMP
},
1826 { "GCMP-256",IWINFO_CIPHER_GCMP256
},
1827 { "GCMP", IWINFO_CIPHER_GCMP
}
1830 static void parse_wpa_ciphers(const char *str
, uint16_t *ciphers
)
1834 const char *m
, *p
, *q
, *sep
= " \t\n,-+/";
1840 for (i
= 0; i
< ARRAY_SIZE(wpa_cipher_strings
); i
++)
1842 m
= wpa_cipher_strings
[i
].match
;
1845 if (!strncmp(q
, m
, l
) && (!q
[l
] || strchr(sep
, q
[l
])))
1847 *ciphers
|= wpa_cipher_strings
[i
].cipher
;
1855 q
+= strcspn(q
, sep
);
1857 p
= q
+ strspn(q
, sep
);
1861 static int nl80211_get_encryption(const char *ifname
, char *buf
)
1865 uint8_t wpa_version
= 0;
1866 char wpa
[2], wpa_key_mgmt
[64], wpa_pairwise
[16], wpa_groupwise
[16];
1867 char auth_algs
[2], wep_key0
[27], wep_key1
[27], wep_key2
[27], wep_key3
[27];
1870 struct iwinfo_crypto_entry
*c
= (struct iwinfo_crypto_entry
*)buf
;
1872 /* WPA supplicant */
1873 if (nl80211_wpactl_query(ifname
,
1874 "pairwise_cipher", wpa_pairwise
, sizeof(wpa_pairwise
),
1875 "group_cipher", wpa_groupwise
, sizeof(wpa_groupwise
),
1876 "key_mgmt", wpa_key_mgmt
, sizeof(wpa_key_mgmt
),
1877 "mode", mode
, sizeof(mode
)))
1880 if (!strcmp(wpa_key_mgmt
, "NONE"))
1882 parse_wpa_ciphers(wpa_pairwise
, &c
->pair_ciphers
);
1883 parse_wpa_ciphers(wpa_groupwise
, &c
->group_ciphers
);
1885 if (c
->pair_ciphers
!= 0 && c
->pair_ciphers
!= IWINFO_CIPHER_NONE
) {
1887 c
->auth_suites
= IWINFO_KMGMT_NONE
;
1888 c
->auth_algs
= IWINFO_AUTH_OPEN
| IWINFO_AUTH_SHARED
;
1891 c
->pair_ciphers
= 0;
1892 c
->group_ciphers
= 0;
1897 else if (!strcmp(mode
, "mesh") && !strcmp(wpa_key_mgmt
, "UNKNOWN"))
1901 c
->auth_suites
= IWINFO_KMGMT_SAE
;
1902 c
->pair_ciphers
= IWINFO_CIPHER_CCMP
;
1903 c
->group_ciphers
= IWINFO_CIPHER_CCMP
;
1909 parse_wpa_ciphers(wpa_pairwise
, &c
->pair_ciphers
);
1910 parse_wpa_ciphers(wpa_groupwise
, &c
->group_ciphers
);
1914 if (!strncmp(p
, "WPA2-", 5) || !strncmp(p
, "WPA2/", 5))
1919 else if (!strncmp(p
, "WPA-", 4))
1925 parse_wpa_suites(p
, wpa_version
, &c
->wpa_version
, &c
->auth_suites
);
1927 c
->enabled
= !!(c
->wpa_version
&& c
->auth_suites
);
1934 else if (nl80211_hostapd_query(ifname
,
1935 "wpa", wpa
, sizeof(wpa
),
1936 "wpa_key_mgmt", wpa_key_mgmt
, sizeof(wpa_key_mgmt
),
1937 "wpa_pairwise", wpa_pairwise
, sizeof(wpa_pairwise
),
1938 "auth_algs", auth_algs
, sizeof(auth_algs
),
1939 "wep_key0", wep_key0
, sizeof(wep_key0
),
1940 "wep_key1", wep_key1
, sizeof(wep_key1
),
1941 "wep_key2", wep_key2
, sizeof(wep_key2
),
1942 "wep_key3", wep_key3
, sizeof(wep_key3
)))
1946 if (wpa_key_mgmt
[0])
1948 for (p
= strtok(wpa_key_mgmt
, " \t"); p
!= NULL
; p
= strtok(NULL
, " \t"))
1950 if (!strncmp(p
, "WPA-", 4))
1953 if (!strncmp(p
, "FT-", 3))
1956 parse_wpa_suites(p
, atoi(wpa
), &c
->wpa_version
, &c
->auth_suites
);
1959 c
->enabled
= c
->wpa_version
? 1 : 0;
1962 if (wpa_pairwise
[0])
1963 parse_wpa_ciphers(wpa_pairwise
, &c
->pair_ciphers
);
1967 switch (atoi(auth_algs
))
1970 c
->auth_algs
|= IWINFO_AUTH_OPEN
;
1974 c
->auth_algs
|= IWINFO_AUTH_SHARED
;
1978 c
->auth_algs
|= IWINFO_AUTH_OPEN
;
1979 c
->auth_algs
|= IWINFO_AUTH_SHARED
;
1983 c
->pair_ciphers
|= nl80211_check_wepkey(wep_key0
);
1984 c
->pair_ciphers
|= nl80211_check_wepkey(wep_key1
);
1985 c
->pair_ciphers
|= nl80211_check_wepkey(wep_key2
);
1986 c
->pair_ciphers
|= nl80211_check_wepkey(wep_key3
);
1988 c
->enabled
= (c
->auth_algs
&& c
->pair_ciphers
) ? 1 : 0;
1991 c
->group_ciphers
= c
->pair_ciphers
;
1996 /* Ad-Hoc or Mesh interfaces without wpa_supplicant are open */
1997 else if (!nl80211_get_mode(ifname
, &opmode
) &&
1998 (opmode
== IWINFO_OPMODE_ADHOC
||
1999 opmode
== IWINFO_OPMODE_MESHPOINT
))
2010 static int nl80211_get_phyname(const char *ifname
, char *buf
)
2014 name
= nl80211_ifname2phy(ifname
);
2021 else if ((name
= nl80211_phy2ifname(ifname
)) != NULL
)
2023 name
= nl80211_ifname2phy(name
);
2027 strcpy(buf
, ifname
);
2036 static void nl80211_parse_rateinfo(struct nlattr
**ri
,
2037 struct iwinfo_rate_entry
*re
)
2039 if (ri
[NL80211_RATE_INFO_BITRATE32
])
2040 re
->rate
= nla_get_u32(ri
[NL80211_RATE_INFO_BITRATE32
]) * 100;
2041 else if (ri
[NL80211_RATE_INFO_BITRATE
])
2042 re
->rate
= nla_get_u16(ri
[NL80211_RATE_INFO_BITRATE
]) * 100;
2044 if (ri
[NL80211_RATE_INFO_HE_MCS
])
2047 re
->mcs
= nla_get_u8(ri
[NL80211_RATE_INFO_HE_MCS
]);
2049 if (ri
[NL80211_RATE_INFO_HE_NSS
])
2050 re
->nss
= nla_get_u8(ri
[NL80211_RATE_INFO_HE_NSS
]);
2051 if (ri
[NL80211_RATE_INFO_HE_GI
])
2052 re
->he_gi
= nla_get_u8(ri
[NL80211_RATE_INFO_HE_GI
]);
2053 if (ri
[NL80211_RATE_INFO_HE_DCM
])
2054 re
->he_dcm
= nla_get_u8(ri
[NL80211_RATE_INFO_HE_DCM
]);
2056 else if (ri
[NL80211_RATE_INFO_VHT_MCS
])
2059 re
->mcs
= nla_get_u8(ri
[NL80211_RATE_INFO_VHT_MCS
]);
2061 if (ri
[NL80211_RATE_INFO_VHT_NSS
])
2062 re
->nss
= nla_get_u8(ri
[NL80211_RATE_INFO_VHT_NSS
]);
2064 else if (ri
[NL80211_RATE_INFO_MCS
])
2067 re
->mcs
= nla_get_u8(ri
[NL80211_RATE_INFO_MCS
]);
2070 if (ri
[NL80211_RATE_INFO_5_MHZ_WIDTH
])
2072 else if (ri
[NL80211_RATE_INFO_10_MHZ_WIDTH
])
2074 else if (ri
[NL80211_RATE_INFO_40_MHZ_WIDTH
])
2076 else if (ri
[NL80211_RATE_INFO_80_MHZ_WIDTH
])
2078 else if (ri
[NL80211_RATE_INFO_80P80_MHZ_WIDTH
] ||
2079 ri
[NL80211_RATE_INFO_160_MHZ_WIDTH
])
2084 if (ri
[NL80211_RATE_INFO_SHORT_GI
])
2085 re
->is_short_gi
= 1;
2087 re
->is_40mhz
= (re
->mhz
== 40);
2090 static int nl80211_get_survey_cb(struct nl_msg
*msg
, void *arg
)
2092 struct nl80211_array_buf
*arr
= arg
;
2093 struct iwinfo_survey_entry
*e
= arr
->buf
;
2094 struct nlattr
**attr
= nl80211_parse(msg
);
2095 struct nlattr
*sinfo
[NL80211_SURVEY_INFO_MAX
+ 1];
2098 static struct nla_policy survey_policy
[NL80211_SURVEY_INFO_MAX
+ 1] = {
2099 [NL80211_SURVEY_INFO_FREQUENCY
] = { .type
= NLA_U32
},
2100 [NL80211_SURVEY_INFO_NOISE
] = { .type
= NLA_U8
},
2101 [NL80211_SURVEY_INFO_TIME
] = { .type
= NLA_U64
},
2102 [NL80211_SURVEY_INFO_TIME_BUSY
] = { .type
= NLA_U64
},
2103 [NL80211_SURVEY_INFO_TIME_EXT_BUSY
] = { .type
= NLA_U64
},
2104 [NL80211_SURVEY_INFO_TIME_RX
] = { .type
= NLA_U64
},
2105 [NL80211_SURVEY_INFO_TIME_TX
] = { .type
= NLA_U64
},
2108 rc
= nla_parse_nested(sinfo
, NL80211_SURVEY_INFO_MAX
,
2109 attr
[NL80211_ATTR_SURVEY_INFO
],
2114 /* advance to end of array */
2116 memset(e
, 0, sizeof(*e
));
2118 if (sinfo
[NL80211_SURVEY_INFO_FREQUENCY
])
2119 e
->mhz
= nla_get_u32(sinfo
[NL80211_SURVEY_INFO_FREQUENCY
]);
2121 if (sinfo
[NL80211_SURVEY_INFO_NOISE
])
2122 e
->noise
= nla_get_u8(sinfo
[NL80211_SURVEY_INFO_NOISE
]);
2124 if (sinfo
[NL80211_SURVEY_INFO_TIME
])
2125 e
->active_time
= nla_get_u64(sinfo
[NL80211_SURVEY_INFO_TIME
]);
2127 if (sinfo
[NL80211_SURVEY_INFO_TIME_BUSY
])
2128 e
->busy_time
= nla_get_u64(sinfo
[NL80211_SURVEY_INFO_TIME_BUSY
]);
2130 if (sinfo
[NL80211_SURVEY_INFO_TIME_EXT_BUSY
])
2131 e
->busy_time_ext
= nla_get_u64(sinfo
[NL80211_SURVEY_INFO_TIME_EXT_BUSY
]);
2133 if (sinfo
[NL80211_SURVEY_INFO_TIME_RX
])
2134 e
->rxtime
= nla_get_u64(sinfo
[NL80211_SURVEY_INFO_TIME_RX
]);
2136 if (sinfo
[NL80211_SURVEY_INFO_TIME_TX
])
2137 e
->txtime
= nla_get_u64(sinfo
[NL80211_SURVEY_INFO_TIME_TX
]);
2144 static void plink_state_to_str(char *dst
, unsigned state
)
2147 case NL80211_PLINK_LISTEN
:
2148 strcpy(dst
, "LISTEN");
2150 case NL80211_PLINK_OPN_SNT
:
2151 strcpy(dst
, "OPN_SNT");
2153 case NL80211_PLINK_OPN_RCVD
:
2154 strcpy(dst
, "OPN_RCVD");
2156 case NL80211_PLINK_CNF_RCVD
:
2157 strcpy(dst
, "CNF_RCVD");
2159 case NL80211_PLINK_ESTAB
:
2160 strcpy(dst
, "ESTAB");
2162 case NL80211_PLINK_HOLDING
:
2163 strcpy(dst
, "HOLDING");
2165 case NL80211_PLINK_BLOCKED
:
2166 strcpy(dst
, "BLOCKED");
2169 strcpy(dst
, "UNKNOWN");
2174 static void power_mode_to_str(char *dst
, struct nlattr
*a
)
2176 enum nl80211_mesh_power_mode pm
= nla_get_u32(a
);
2179 case NL80211_MESH_POWER_ACTIVE
:
2180 strcpy(dst
, "ACTIVE");
2182 case NL80211_MESH_POWER_LIGHT_SLEEP
:
2183 strcpy(dst
, "LIGHT SLEEP");
2185 case NL80211_MESH_POWER_DEEP_SLEEP
:
2186 strcpy(dst
, "DEEP SLEEP");
2189 strcpy(dst
, "UNKNOWN");
2194 static int nl80211_get_assoclist_cb(struct nl_msg
*msg
, void *arg
)
2196 struct nl80211_array_buf
*arr
= arg
;
2197 struct iwinfo_assoclist_entry
*e
= arr
->buf
;
2198 struct nlattr
**attr
= nl80211_parse(msg
);
2199 struct nlattr
*sinfo
[NL80211_STA_INFO_MAX
+ 1];
2200 struct nlattr
*rinfo
[NL80211_RATE_INFO_MAX
+ 1];
2201 struct nl80211_sta_flag_update
*sta_flags
;
2203 static struct nla_policy stats_policy
[NL80211_STA_INFO_MAX
+ 1] = {
2204 [NL80211_STA_INFO_INACTIVE_TIME
] = { .type
= NLA_U32
},
2205 [NL80211_STA_INFO_RX_PACKETS
] = { .type
= NLA_U32
},
2206 [NL80211_STA_INFO_TX_PACKETS
] = { .type
= NLA_U32
},
2207 [NL80211_STA_INFO_RX_BITRATE
] = { .type
= NLA_NESTED
},
2208 [NL80211_STA_INFO_TX_BITRATE
] = { .type
= NLA_NESTED
},
2209 [NL80211_STA_INFO_SIGNAL
] = { .type
= NLA_U8
},
2210 [NL80211_STA_INFO_SIGNAL_AVG
] = { .type
= NLA_U8
},
2211 [NL80211_STA_INFO_RX_BYTES
] = { .type
= NLA_U32
},
2212 [NL80211_STA_INFO_TX_BYTES
] = { .type
= NLA_U32
},
2213 [NL80211_STA_INFO_TX_RETRIES
] = { .type
= NLA_U32
},
2214 [NL80211_STA_INFO_TX_FAILED
] = { .type
= NLA_U32
},
2215 [NL80211_STA_INFO_CONNECTED_TIME
]= { .type
= NLA_U32
},
2216 [NL80211_STA_INFO_RX_DROP_MISC
] = { .type
= NLA_U64
},
2217 [NL80211_STA_INFO_T_OFFSET
] = { .type
= NLA_U64
},
2218 [NL80211_STA_INFO_STA_FLAGS
] =
2219 { .minlen
= sizeof(struct nl80211_sta_flag_update
) },
2220 [NL80211_STA_INFO_EXPECTED_THROUGHPUT
] = { .type
= NLA_U32
},
2222 [NL80211_STA_INFO_LLID
] = { .type
= NLA_U16
},
2223 [NL80211_STA_INFO_PLID
] = { .type
= NLA_U16
},
2224 [NL80211_STA_INFO_PLINK_STATE
] = { .type
= NLA_U8
},
2225 [NL80211_STA_INFO_LOCAL_PM
] = { .type
= NLA_U32
},
2226 [NL80211_STA_INFO_PEER_PM
] = { .type
= NLA_U32
},
2227 [NL80211_STA_INFO_NONPEER_PM
] = { .type
= NLA_U32
},
2230 static struct nla_policy rate_policy
[NL80211_RATE_INFO_MAX
+ 1] = {
2231 [NL80211_RATE_INFO_BITRATE
] = { .type
= NLA_U16
},
2232 [NL80211_RATE_INFO_MCS
] = { .type
= NLA_U8
},
2233 [NL80211_RATE_INFO_40_MHZ_WIDTH
] = { .type
= NLA_FLAG
},
2234 [NL80211_RATE_INFO_SHORT_GI
] = { .type
= NLA_FLAG
},
2237 /* advance to end of array */
2239 memset(e
, 0, sizeof(*e
));
2241 if (attr
[NL80211_ATTR_MAC
])
2242 memcpy(e
->mac
, nla_data(attr
[NL80211_ATTR_MAC
]), 6);
2244 if (attr
[NL80211_ATTR_STA_INFO
] &&
2245 !nla_parse_nested(sinfo
, NL80211_STA_INFO_MAX
,
2246 attr
[NL80211_ATTR_STA_INFO
], stats_policy
))
2248 if (sinfo
[NL80211_STA_INFO_SIGNAL
])
2249 e
->signal
= nla_get_u8(sinfo
[NL80211_STA_INFO_SIGNAL
]);
2251 if (sinfo
[NL80211_STA_INFO_SIGNAL_AVG
])
2252 e
->signal_avg
= nla_get_u8(sinfo
[NL80211_STA_INFO_SIGNAL_AVG
]);
2254 if (sinfo
[NL80211_STA_INFO_INACTIVE_TIME
])
2255 e
->inactive
= nla_get_u32(sinfo
[NL80211_STA_INFO_INACTIVE_TIME
]);
2257 if (sinfo
[NL80211_STA_INFO_CONNECTED_TIME
])
2258 e
->connected_time
= nla_get_u32(sinfo
[NL80211_STA_INFO_CONNECTED_TIME
]);
2260 if (sinfo
[NL80211_STA_INFO_RX_PACKETS
])
2261 e
->rx_packets
= nla_get_u32(sinfo
[NL80211_STA_INFO_RX_PACKETS
]);
2263 if (sinfo
[NL80211_STA_INFO_TX_PACKETS
])
2264 e
->tx_packets
= nla_get_u32(sinfo
[NL80211_STA_INFO_TX_PACKETS
]);
2266 if (sinfo
[NL80211_STA_INFO_RX_BITRATE
] &&
2267 !nla_parse_nested(rinfo
, NL80211_RATE_INFO_MAX
,
2268 sinfo
[NL80211_STA_INFO_RX_BITRATE
], rate_policy
))
2269 nl80211_parse_rateinfo(rinfo
, &e
->rx_rate
);
2271 if (sinfo
[NL80211_STA_INFO_TX_BITRATE
] &&
2272 !nla_parse_nested(rinfo
, NL80211_RATE_INFO_MAX
,
2273 sinfo
[NL80211_STA_INFO_TX_BITRATE
], rate_policy
))
2274 nl80211_parse_rateinfo(rinfo
, &e
->tx_rate
);
2276 if (sinfo
[NL80211_STA_INFO_RX_BYTES
])
2277 e
->rx_bytes
= nla_get_u32(sinfo
[NL80211_STA_INFO_RX_BYTES
]);
2279 if (sinfo
[NL80211_STA_INFO_TX_BYTES
])
2280 e
->tx_bytes
= nla_get_u32(sinfo
[NL80211_STA_INFO_TX_BYTES
]);
2282 if (sinfo
[NL80211_STA_INFO_TX_RETRIES
])
2283 e
->tx_retries
= nla_get_u32(sinfo
[NL80211_STA_INFO_TX_RETRIES
]);
2285 if (sinfo
[NL80211_STA_INFO_TX_FAILED
])
2286 e
->tx_failed
= nla_get_u32(sinfo
[NL80211_STA_INFO_TX_FAILED
]);
2288 if (sinfo
[NL80211_STA_INFO_T_OFFSET
])
2289 e
->t_offset
= nla_get_u64(sinfo
[NL80211_STA_INFO_T_OFFSET
]);
2291 if (sinfo
[NL80211_STA_INFO_RX_DROP_MISC
])
2292 e
->rx_drop_misc
= nla_get_u64(sinfo
[NL80211_STA_INFO_RX_DROP_MISC
]);
2294 if (sinfo
[NL80211_STA_INFO_EXPECTED_THROUGHPUT
])
2295 e
->thr
= nla_get_u32(sinfo
[NL80211_STA_INFO_EXPECTED_THROUGHPUT
]);
2298 if (sinfo
[NL80211_STA_INFO_LLID
])
2299 e
->llid
= nla_get_u16(sinfo
[NL80211_STA_INFO_LLID
]);
2301 if (sinfo
[NL80211_STA_INFO_PLID
])
2302 e
->plid
= nla_get_u16(sinfo
[NL80211_STA_INFO_PLID
]);
2304 if (sinfo
[NL80211_STA_INFO_PLINK_STATE
])
2305 plink_state_to_str(e
->plink_state
,
2306 nla_get_u8(sinfo
[NL80211_STA_INFO_PLINK_STATE
]));
2308 if (sinfo
[NL80211_STA_INFO_LOCAL_PM
])
2309 power_mode_to_str(e
->local_ps
, sinfo
[NL80211_STA_INFO_LOCAL_PM
]);
2310 if (sinfo
[NL80211_STA_INFO_PEER_PM
])
2311 power_mode_to_str(e
->peer_ps
, sinfo
[NL80211_STA_INFO_PEER_PM
]);
2312 if (sinfo
[NL80211_STA_INFO_NONPEER_PM
])
2313 power_mode_to_str(e
->nonpeer_ps
, sinfo
[NL80211_STA_INFO_NONPEER_PM
]);
2316 if (sinfo
[NL80211_STA_INFO_STA_FLAGS
])
2318 sta_flags
= (struct nl80211_sta_flag_update
*)
2319 nla_data(sinfo
[NL80211_STA_INFO_STA_FLAGS
]);
2321 if (sta_flags
->mask
& BIT(NL80211_STA_FLAG_AUTHORIZED
) &&
2322 sta_flags
->set
& BIT(NL80211_STA_FLAG_AUTHORIZED
))
2323 e
->is_authorized
= 1;
2325 if (sta_flags
->mask
& BIT(NL80211_STA_FLAG_AUTHENTICATED
) &&
2326 sta_flags
->set
& BIT(NL80211_STA_FLAG_AUTHENTICATED
))
2327 e
->is_authenticated
= 1;
2329 if (sta_flags
->mask
& BIT(NL80211_STA_FLAG_SHORT_PREAMBLE
) &&
2330 sta_flags
->set
& BIT(NL80211_STA_FLAG_SHORT_PREAMBLE
))
2331 e
->is_preamble_short
= 1;
2333 if (sta_flags
->mask
& BIT(NL80211_STA_FLAG_WME
) &&
2334 sta_flags
->set
& BIT(NL80211_STA_FLAG_WME
))
2337 if (sta_flags
->mask
& BIT(NL80211_STA_FLAG_MFP
) &&
2338 sta_flags
->set
& BIT(NL80211_STA_FLAG_MFP
))
2341 if (sta_flags
->mask
& BIT(NL80211_STA_FLAG_TDLS_PEER
) &&
2342 sta_flags
->set
& BIT(NL80211_STA_FLAG_TDLS_PEER
))
2347 e
->noise
= 0; /* filled in by caller */
2353 static int nl80211_get_survey(const char *ifname
, char *buf
, int *len
)
2355 struct nl80211_array_buf arr
= { .buf
= buf
, .count
= 0 };
2358 rc
= nl80211_request(ifname
, NL80211_CMD_GET_SURVEY
,
2359 NLM_F_DUMP
, nl80211_get_survey_cb
, &arr
);
2361 *len
= (arr
.count
* sizeof(struct iwinfo_survey_entry
));
2368 static int nl80211_get_assoclist(const char *ifname
, char *buf
, int *len
)
2373 struct nl80211_array_buf arr
= { .buf
= buf
, .count
= 0 };
2374 struct iwinfo_assoclist_entry
*e
;
2376 if ((d
= opendir("/sys/class/net")) != NULL
)
2378 while ((de
= readdir(d
)) != NULL
)
2380 if (!strncmp(de
->d_name
, ifname
, strlen(ifname
)) &&
2381 (!de
->d_name
[strlen(ifname
)] ||
2382 !strncmp(&de
->d_name
[strlen(ifname
)], ".sta", 4)))
2384 nl80211_request(de
->d_name
, NL80211_CMD_GET_STATION
,
2385 NLM_F_DUMP
, nl80211_get_assoclist_cb
, &arr
);
2391 if (!nl80211_get_noise(ifname
, &noise
))
2392 for (i
= 0, e
= arr
.buf
; i
< arr
.count
; i
++, e
++)
2395 *len
= (arr
.count
* sizeof(struct iwinfo_assoclist_entry
));
2402 static int nl80211_get_txpwrlist_cb(struct nl_msg
*msg
, void *arg
)
2405 int ch_cur
, ch_cmp
, bands_remain
, freqs_remain
;
2407 struct nlattr
**attr
= nl80211_parse(msg
);
2408 struct nlattr
*bands
[NL80211_BAND_ATTR_MAX
+ 1];
2409 struct nlattr
*freqs
[NL80211_FREQUENCY_ATTR_MAX
+ 1];
2410 struct nlattr
*band
, *freq
;
2412 static struct nla_policy freq_policy
[NL80211_FREQUENCY_ATTR_MAX
+ 1] = {
2413 [NL80211_FREQUENCY_ATTR_FREQ
] = { .type
= NLA_U32
},
2414 [NL80211_FREQUENCY_ATTR_DISABLED
] = { .type
= NLA_FLAG
},
2415 [NL80211_FREQUENCY_ATTR_PASSIVE_SCAN
] = { .type
= NLA_FLAG
},
2416 [NL80211_FREQUENCY_ATTR_NO_IBSS
] = { .type
= NLA_FLAG
},
2417 [NL80211_FREQUENCY_ATTR_RADAR
] = { .type
= NLA_FLAG
},
2418 [NL80211_FREQUENCY_ATTR_MAX_TX_POWER
] = { .type
= NLA_U32
},
2421 ch_cur
= *dbm_max
; /* value int* is initialized with channel by caller */
2424 nla_for_each_nested(band
, attr
[NL80211_ATTR_WIPHY_BANDS
], bands_remain
)
2426 nla_parse(bands
, NL80211_BAND_ATTR_MAX
, nla_data(band
),
2427 nla_len(band
), NULL
);
2429 nla_for_each_nested(freq
, bands
[NL80211_BAND_ATTR_FREQS
], freqs_remain
)
2431 nla_parse(freqs
, NL80211_FREQUENCY_ATTR_MAX
,
2432 nla_data(freq
), nla_len(freq
), freq_policy
);
2434 ch_cmp
= nl80211_freq2channel(nla_get_u32(
2435 freqs
[NL80211_FREQUENCY_ATTR_FREQ
]));
2437 if ((!ch_cur
|| (ch_cmp
== ch_cur
)) &&
2438 freqs
[NL80211_FREQUENCY_ATTR_MAX_TX_POWER
])
2440 *dbm_max
= (int)(0.01 * nla_get_u32(
2441 freqs
[NL80211_FREQUENCY_ATTR_MAX_TX_POWER
]));
2451 static int nl80211_get_txpwrlist(const char *ifname
, char *buf
, int *len
)
2454 int dbm_max
= -1, dbm_cur
, dbm_cnt
;
2455 struct iwinfo_txpwrlist_entry entry
;
2457 if (nl80211_get_channel(ifname
, &ch_cur
))
2460 /* initialize the value pointer with channel for callback */
2463 err
= nl80211_request(ifname
, NL80211_CMD_GET_WIPHY
, 0,
2464 nl80211_get_txpwrlist_cb
, &dbm_max
);
2468 for (dbm_cur
= 0, dbm_cnt
= 0;
2470 dbm_cur
++, dbm_cnt
++)
2472 entry
.dbm
= dbm_cur
;
2473 entry
.mw
= iwinfo_dbm2mw(dbm_cur
);
2475 memcpy(&buf
[dbm_cnt
* sizeof(entry
)], &entry
, sizeof(entry
));
2478 entry
.dbm
= dbm_max
;
2479 entry
.mw
= iwinfo_dbm2mw(dbm_max
);
2481 memcpy(&buf
[dbm_cnt
* sizeof(entry
)], &entry
, sizeof(entry
));
2484 *len
= dbm_cnt
* sizeof(entry
);
2491 static void nl80211_get_scancrypto(char *spec
, struct iwinfo_crypto_entry
*c
)
2493 int wpa_version
= 0;
2494 char *p
, *q
, *proto
, *suites
;
2498 for (p
= strtok_r(spec
, "[]", &q
); p
; p
= strtok_r(NULL
, "[]", &q
)) {
2499 if (!strcmp(p
, "WEP")) {
2501 c
->auth_suites
= IWINFO_KMGMT_NONE
;
2502 c
->auth_algs
= IWINFO_AUTH_OPEN
| IWINFO_AUTH_SHARED
;
2503 c
->pair_ciphers
= IWINFO_CIPHER_WEP40
| IWINFO_CIPHER_WEP104
;
2507 proto
= strtok(p
, "-");
2508 suites
= strtok(NULL
, "]");
2510 if (!proto
|| !suites
)
2513 if (!strcmp(proto
, "WPA2") || !strcmp(proto
, "RSN"))
2515 else if (!strcmp(proto
, "WPA"))
2522 parse_wpa_suites(suites
, wpa_version
, &c
->wpa_version
, &c
->auth_suites
);
2523 parse_wpa_ciphers(suites
, &c
->pair_ciphers
);
2528 struct nl80211_scanlist
{
2529 struct iwinfo_scanlist_entry
*e
;
2534 static void nl80211_get_scanlist_ie(struct nlattr
**bss
,
2535 struct iwinfo_scanlist_entry
*e
)
2537 int ielen
= nla_len(bss
[NL80211_BSS_INFORMATION_ELEMENTS
]);
2538 unsigned char *ie
= nla_data(bss
[NL80211_BSS_INFORMATION_ELEMENTS
]);
2539 static unsigned char ms_oui
[3] = { 0x00, 0x50, 0xf2 };
2542 while (ielen
>= 2 && ielen
>= ie
[1])
2547 case 114: /* Mesh ID */
2548 if (e
->ssid
[0] == 0) {
2549 len
= min(ie
[1], IWINFO_ESSID_MAX_SIZE
);
2550 memcpy(e
->ssid
, ie
+ 2, len
);
2556 iwinfo_parse_rsn(&e
->crypto
, ie
+ 2, ie
[1],
2557 IWINFO_CIPHER_CCMP
, IWINFO_KMGMT_8021x
);
2560 case 221: /* Vendor */
2561 if (ie
[1] >= 4 && !memcmp(ie
+ 2, ms_oui
, 3) && ie
[5] == 1)
2562 iwinfo_parse_rsn(&e
->crypto
, ie
+ 6, ie
[1] - 4,
2563 IWINFO_CIPHER_TKIP
, IWINFO_KMGMT_PSK
);
2565 case 61: /* HT oeration */
2567 e
->ht_chan_info
.primary_chan
= ie
[2];
2568 e
->ht_chan_info
.secondary_chan_off
= ie
[3] & 0x3;
2569 e
->ht_chan_info
.chan_width
= (ie
[4] & 0x4)>>2;
2572 case 192: /* VHT operation */
2574 e
->vht_chan_info
.chan_width
= ie
[2];
2575 e
->vht_chan_info
.center_chan_1
= ie
[3];
2576 e
->vht_chan_info
.center_chan_2
= ie
[4];
2586 static int nl80211_get_scanlist_cb(struct nl_msg
*msg
, void *arg
)
2591 struct nl80211_scanlist
*sl
= arg
;
2592 struct nlattr
**tb
= nl80211_parse(msg
);
2593 struct nlattr
*bss
[NL80211_BSS_MAX
+ 1];
2595 static struct nla_policy bss_policy
[NL80211_BSS_MAX
+ 1] = {
2596 [NL80211_BSS_TSF
] = { .type
= NLA_U64
},
2597 [NL80211_BSS_FREQUENCY
] = { .type
= NLA_U32
},
2598 [NL80211_BSS_BSSID
] = { 0 },
2599 [NL80211_BSS_BEACON_INTERVAL
] = { .type
= NLA_U16
},
2600 [NL80211_BSS_CAPABILITY
] = { .type
= NLA_U16
},
2601 [NL80211_BSS_INFORMATION_ELEMENTS
] = { 0 },
2602 [NL80211_BSS_SIGNAL_MBM
] = { .type
= NLA_U32
},
2603 [NL80211_BSS_SIGNAL_UNSPEC
] = { .type
= NLA_U8
},
2604 [NL80211_BSS_STATUS
] = { .type
= NLA_U32
},
2605 [NL80211_BSS_SEEN_MS_AGO
] = { .type
= NLA_U32
},
2606 [NL80211_BSS_BEACON_IES
] = { 0 },
2609 if (!tb
[NL80211_ATTR_BSS
] ||
2610 nla_parse_nested(bss
, NL80211_BSS_MAX
, tb
[NL80211_ATTR_BSS
],
2612 !bss
[NL80211_BSS_BSSID
])
2617 if (bss
[NL80211_BSS_CAPABILITY
])
2618 caps
= nla_get_u16(bss
[NL80211_BSS_CAPABILITY
]);
2622 memset(sl
->e
, 0, sizeof(*sl
->e
));
2623 memcpy(sl
->e
->mac
, nla_data(bss
[NL80211_BSS_BSSID
]), 6);
2626 sl
->e
->mode
= IWINFO_OPMODE_ADHOC
;
2627 else if (caps
& (1<<0))
2628 sl
->e
->mode
= IWINFO_OPMODE_MASTER
;
2630 sl
->e
->mode
= IWINFO_OPMODE_MESHPOINT
;
2633 sl
->e
->crypto
.enabled
= 1;
2635 if (bss
[NL80211_BSS_FREQUENCY
])
2637 sl
->e
->mhz
= nla_get_u32(bss
[NL80211_BSS_FREQUENCY
]);
2638 sl
->e
->band
= nl80211_freq2band(sl
->e
->mhz
);
2639 sl
->e
->channel
= nl80211_freq2channel(sl
->e
->mhz
);
2642 if (bss
[NL80211_BSS_INFORMATION_ELEMENTS
])
2643 nl80211_get_scanlist_ie(bss
, sl
->e
);
2645 if (bss
[NL80211_BSS_SIGNAL_MBM
])
2648 (uint8_t)((int32_t)nla_get_u32(bss
[NL80211_BSS_SIGNAL_MBM
]) / 100);
2650 rssi
= sl
->e
->signal
- 0x100;
2654 else if (rssi
> -40)
2657 sl
->e
->quality
= (rssi
+ 110);
2658 sl
->e
->quality_max
= 70;
2661 if (sl
->e
->crypto
.enabled
&& !sl
->e
->crypto
.wpa_version
)
2663 sl
->e
->crypto
.auth_algs
= IWINFO_AUTH_OPEN
| IWINFO_AUTH_SHARED
;
2664 sl
->e
->crypto
.pair_ciphers
= IWINFO_CIPHER_WEP40
| IWINFO_CIPHER_WEP104
;
2673 static int nl80211_get_scanlist_nl(const char *ifname
, char *buf
, int *len
)
2675 struct nl80211_scanlist sl
= { .e
= (struct iwinfo_scanlist_entry
*)buf
};
2677 if (nl80211_request(ifname
, NL80211_CMD_TRIGGER_SCAN
, 0, NULL
, NULL
))
2680 if (nl80211_wait("nl80211", "scan",
2681 NL80211_CMD_NEW_SCAN_RESULTS
, NL80211_CMD_SCAN_ABORTED
))
2684 if (nl80211_request(ifname
, NL80211_CMD_GET_SCAN
, NLM_F_DUMP
,
2685 nl80211_get_scanlist_cb
, &sl
))
2688 *len
= sl
.len
* sizeof(struct iwinfo_scanlist_entry
);
2696 static int wpasupp_ssid_decode(const char *in
, char *out
, int outlen
)
2699 (((x) >= 'a') ? ((x) - 'a' + 10) : \
2700 (((x) >= 'A') ? ((x) - 'A' + 10) : ((x) - '0')))
2706 if (len
+ 1 >= outlen
)
2716 out
[len
++] = '\n'; in
++;
2720 out
[len
++] = '\r'; in
++;
2724 out
[len
++] = '\t'; in
++;
2728 out
[len
++] = '\033'; in
++;
2732 if (isxdigit(*(in
+1)) && isxdigit(*(in
+2)))
2733 out
[len
++] = hex(*(in
+1)) * 16 + hex(*(in
+2));
2755 static int nl80211_get_scanlist_wpactl(const char *ifname
, char *buf
, int *len
)
2757 int sock
, qmax
, rssi
, tries
, count
= -1, ready
= 0;
2758 char *pos
, *line
, *bssid
, *freq
, *signal
, *flags
, *ssid
, reply
[4096];
2759 struct sockaddr_un local
= { 0 };
2760 struct iwinfo_scanlist_entry
*e
= (struct iwinfo_scanlist_entry
*)buf
;
2762 sock
= nl80211_wpactl_connect(ifname
, &local
);
2767 send(sock
, "ATTACH", 6, 0);
2768 send(sock
, "SCAN", 4, 0);
2771 * wait for scan results:
2772 * nl80211_wpactl_recv() will use a timeout of 256ms and we need to scan
2773 * 72 channels at most. We'll also receive two "OK" messages acknowledging
2774 * the "ATTACH" and "SCAN" commands and the driver might need a bit extra
2775 * time to process the results, so try 72 + 2 + 1 times.
2777 for (tries
= 0; tries
< 75; tries
++)
2779 if (nl80211_wpactl_recv(sock
, reply
, sizeof(reply
)) <= 0)
2782 /* got an event notification */
2783 if (reply
[0] == '<')
2785 /* scan results are ready */
2786 if (strstr(reply
, "CTRL-EVENT-SCAN-RESULTS"))
2788 /* send "SCAN_RESULTS" command */
2789 ready
= (send(sock
, "SCAN_RESULTS", 12, 0) == 12);
2793 /* is another unrelated event, retry */
2797 /* scanning already in progress, keep awaiting results */
2798 else if (!strcmp(reply
, "FAIL-BUSY\n"))
2803 /* another failure, abort */
2804 else if (!strncmp(reply
, "FAIL-", 5))
2810 /* receive and parse scan results if the wait above didn't time out */
2811 while (ready
&& nl80211_wpactl_recv(sock
, reply
, sizeof(reply
)) > 0)
2813 /* received an event notification, receive again */
2814 if (reply
[0] == '<')
2817 nl80211_get_quality_max(ifname
, &qmax
);
2819 for (line
= strtok_r(reply
, "\n", &pos
);
2821 line
= strtok_r(NULL
, "\n", &pos
))
2823 /* skip header line */
2830 bssid
= strtok(line
, "\t");
2831 freq
= strtok(NULL
, "\t");
2832 signal
= strtok(NULL
, "\t");
2833 flags
= strtok(NULL
, "\t");
2834 ssid
= strtok(NULL
, "\n");
2836 if (!bssid
|| !freq
|| !signal
|| !flags
)
2840 e
->mac
[0] = strtol(&bssid
[0], NULL
, 16);
2841 e
->mac
[1] = strtol(&bssid
[3], NULL
, 16);
2842 e
->mac
[2] = strtol(&bssid
[6], NULL
, 16);
2843 e
->mac
[3] = strtol(&bssid
[9], NULL
, 16);
2844 e
->mac
[4] = strtol(&bssid
[12], NULL
, 16);
2845 e
->mac
[5] = strtol(&bssid
[15], NULL
, 16);
2849 wpasupp_ssid_decode(ssid
, e
->ssid
, sizeof(e
->ssid
));
2854 if (strstr(flags
, "[MESH]"))
2855 e
->mode
= IWINFO_OPMODE_MESHPOINT
;
2856 else if (strstr(flags
, "[IBSS]"))
2857 e
->mode
= IWINFO_OPMODE_ADHOC
;
2859 e
->mode
= IWINFO_OPMODE_MASTER
;
2862 e
->mhz
= atoi(freq
);
2863 e
->band
= nl80211_freq2band(e
->mhz
);
2864 e
->channel
= nl80211_freq2channel(e
->mhz
);
2867 rssi
= atoi(signal
);
2873 /* The cfg80211 wext compat layer assumes a signal range
2874 * of -110 dBm to -40 dBm, the quality value is derived
2875 * by adding 110 to the signal level */
2878 else if (rssi
> -40)
2881 e
->quality
= (rssi
+ 110);
2889 e
->quality_max
= qmax
;
2892 nl80211_get_scancrypto(flags
, &e
->crypto
);
2898 *len
= count
* sizeof(struct iwinfo_scanlist_entry
);
2903 unlink(local
.sun_path
);
2905 return (count
>= 0) ? 0 : -1;
2908 static int nl80211_get_scanlist(const char *ifname
, char *buf
, int *len
)
2915 /* Got a radioX pseudo interface, find some interface on it or create one */
2916 if (!strncmp(ifname
, "radio", 5))
2918 /* Reuse existing interface */
2919 if ((res
= nl80211_phy2ifname(ifname
)) != NULL
)
2921 return nl80211_get_scanlist(res
, buf
, len
);
2924 /* Need to spawn a temporary iface for scanning */
2925 else if ((res
= nl80211_ifadd(ifname
)) != NULL
)
2927 rv
= nl80211_get_scanlist(res
, buf
, len
);
2933 /* WPA supplicant */
2934 if (!nl80211_get_scanlist_wpactl(ifname
, buf
, len
))
2939 /* station / ad-hoc / monitor scan */
2940 else if (!nl80211_get_mode(ifname
, &mode
) &&
2941 (mode
== IWINFO_OPMODE_ADHOC
||
2942 mode
== IWINFO_OPMODE_MASTER
||
2943 mode
== IWINFO_OPMODE_CLIENT
||
2944 mode
== IWINFO_OPMODE_MONITOR
) &&
2945 iwinfo_ifup(ifname
))
2947 return nl80211_get_scanlist_nl(ifname
, buf
, len
);
2953 /* Got a temp interface, don't create yet another one */
2954 if (!strncmp(ifname
, "tmp.", 4))
2956 if (!iwinfo_ifup(ifname
))
2959 rv
= nl80211_get_scanlist_nl(ifname
, buf
, len
);
2960 iwinfo_ifdown(ifname
);
2964 /* Spawn a new scan interface */
2967 if (!(res
= nl80211_ifadd(ifname
)))
2972 /* if we can take the new interface up, the driver supports an
2973 * additional interface and there's no need to tear down the ap */
2974 if (iwinfo_ifup(res
))
2976 rv
= nl80211_get_scanlist_nl(res
, buf
, len
);
2980 /* driver cannot create secondary interface, take down ap
2982 else if (iwinfo_ifdown(ifname
) && iwinfo_ifup(res
))
2984 rv
= nl80211_get_scanlist_nl(res
, buf
, len
);
2986 iwinfo_ifup(ifname
);
2987 nl80211_hostapd_hup(ifname
);
3000 static int nl80211_get_freqlist_cb(struct nl_msg
*msg
, void *arg
)
3002 int bands_remain
, freqs_remain
;
3004 struct nl80211_array_buf
*arr
= arg
;
3005 struct iwinfo_freqlist_entry
*e
;
3007 struct nlattr
**attr
= nl80211_parse(msg
);
3008 struct nlattr
*bands
[NL80211_BAND_ATTR_MAX
+ 1];
3009 struct nlattr
*freqs
[NL80211_FREQUENCY_ATTR_MAX
+ 1];
3010 struct nlattr
*band
, *freq
;
3015 if (attr
[NL80211_ATTR_WIPHY_BANDS
]) {
3016 nla_for_each_nested(band
, attr
[NL80211_ATTR_WIPHY_BANDS
], bands_remain
)
3018 nla_parse(bands
, NL80211_BAND_ATTR_MAX
,
3019 nla_data(band
), nla_len(band
), NULL
);
3021 if (bands
[NL80211_BAND_ATTR_FREQS
]) {
3022 nla_for_each_nested(freq
, bands
[NL80211_BAND_ATTR_FREQS
], freqs_remain
)
3024 nla_parse(freqs
, NL80211_FREQUENCY_ATTR_MAX
,
3025 nla_data(freq
), nla_len(freq
), NULL
);
3027 if (!freqs
[NL80211_FREQUENCY_ATTR_FREQ
] ||
3028 freqs
[NL80211_FREQUENCY_ATTR_DISABLED
])
3031 e
->band
= nl80211_get_band(band
->nla_type
);
3032 e
->mhz
= nla_get_u32(freqs
[NL80211_FREQUENCY_ATTR_FREQ
]);
3033 e
->channel
= nl80211_freq2channel(e
->mhz
);
3035 if (freqs
[NL80211_FREQUENCY_ATTR_NO_HT40_MINUS
])
3036 e
->flags
|= IWINFO_FREQ_NO_HT40MINUS
;
3037 if (freqs
[NL80211_FREQUENCY_ATTR_NO_HT40_PLUS
])
3038 e
->flags
|= IWINFO_FREQ_NO_HT40PLUS
;
3039 if (freqs
[NL80211_FREQUENCY_ATTR_NO_80MHZ
])
3040 e
->flags
|= IWINFO_FREQ_NO_80MHZ
;
3041 if (freqs
[NL80211_FREQUENCY_ATTR_NO_160MHZ
])
3042 e
->flags
|= IWINFO_FREQ_NO_160MHZ
;
3043 if (freqs
[NL80211_FREQUENCY_ATTR_NO_20MHZ
])
3044 e
->flags
|= IWINFO_FREQ_NO_20MHZ
;
3045 if (freqs
[NL80211_FREQUENCY_ATTR_NO_10MHZ
])
3046 e
->flags
|= IWINFO_FREQ_NO_10MHZ
;
3047 if (freqs
[NL80211_FREQUENCY_ATTR_NO_HE
])
3048 e
->flags
|= IWINFO_FREQ_NO_HE
;
3049 if (freqs
[NL80211_FREQUENCY_ATTR_NO_IR
] &&
3050 !freqs
[NL80211_FREQUENCY_ATTR_RADAR
])
3051 e
->flags
|= IWINFO_FREQ_NO_IR
;
3052 if (freqs
[NL80211_FREQUENCY_ATTR_INDOOR_ONLY
])
3053 e
->flags
|= IWINFO_FREQ_INDOOR_ONLY
;
3055 /* keep backwards compatibility */
3056 e
->restricted
= (e
->flags
& IWINFO_FREQ_NO_IR
) ? 1 : 0;
3068 static int nl80211_get_freqlist(const char *ifname
, char *buf
, int *len
)
3070 struct nl80211_msg_conveyor
*cv
;
3071 struct nl80211_array_buf arr
= { .buf
= buf
, .count
= 0 };
3072 uint32_t features
= nl80211_get_protocol_features(ifname
);
3075 flags
= features
& NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP
? NLM_F_DUMP
: 0;
3076 cv
= nl80211_msg(ifname
, NL80211_CMD_GET_WIPHY
, flags
);
3080 NLA_PUT_FLAG(cv
->msg
, NL80211_ATTR_SPLIT_WIPHY_DUMP
);
3081 if (nl80211_send(cv
, nl80211_get_freqlist_cb
, &arr
))
3084 *len
= arr
.count
* sizeof(struct iwinfo_freqlist_entry
);
3094 static int nl80211_get_country_cb(struct nl_msg
*msg
, void *arg
)
3097 struct nlattr
**attr
= nl80211_parse(msg
);
3099 if (attr
[NL80211_ATTR_REG_ALPHA2
])
3100 memcpy(buf
, nla_data(attr
[NL80211_ATTR_REG_ALPHA2
]), 2);
3107 static int nl80211_get_country(const char *ifname
, char *buf
)
3109 if (nl80211_request(ifname
, NL80211_CMD_GET_REG
, 0,
3110 nl80211_get_country_cb
, buf
))
3116 static int nl80211_get_countrylist(const char *ifname
, char *buf
, int *len
)
3119 struct iwinfo_country_entry
*e
= (struct iwinfo_country_entry
*)buf
;
3120 const struct iwinfo_iso3166_label
*l
;
3122 for (l
= IWINFO_ISO3166_NAMES
, count
= 0; l
->iso3166
; l
++, e
++, count
++)
3124 e
->iso3166
= l
->iso3166
;
3125 e
->ccode
[0] = (l
->iso3166
/ 256);
3126 e
->ccode
[1] = (l
->iso3166
% 256);
3130 *len
= (count
* sizeof(struct iwinfo_country_entry
));
3135 struct nl80211_modes
3145 uint16_t he_phy_cap
[6];
3148 static void nl80211_eval_modelist(struct nl80211_modes
*m
)
3150 /* Treat any nonzero capability as 11n */
3153 m
->hw
|= IWINFO_80211_N
;
3154 m
->ht
|= IWINFO_HTMODE_HT20
;
3156 if (m
->nl_ht
& (1 << 1))
3157 m
->ht
|= IWINFO_HTMODE_HT40
;
3160 if (m
->he_phy_cap
[0] != 0) {
3161 m
->hw
|= IWINFO_80211_AX
;
3162 m
->ht
|= IWINFO_HTMODE_HE20
;
3164 if (m
->he_phy_cap
[0] & BIT(9))
3165 m
->ht
|= IWINFO_HTMODE_HE40
;
3166 if (m
->he_phy_cap
[0] & BIT(10))
3167 m
->ht
|= IWINFO_HTMODE_HE40
| IWINFO_HTMODE_HE80
;
3168 if (m
->he_phy_cap
[0] & BIT(11))
3169 m
->ht
|= IWINFO_HTMODE_HE160
;
3170 if (m
->he_phy_cap
[0] & BIT(12))
3171 m
->ht
|= IWINFO_HTMODE_HE160
| IWINFO_HTMODE_HE80_80
;
3174 if (m
->bands
& IWINFO_BAND_24
)
3176 m
->hw
|= IWINFO_80211_B
;
3177 m
->hw
|= IWINFO_80211_G
;
3180 if (m
->bands
& IWINFO_BAND_5
)
3182 /* Treat any nonzero capability as 11ac */
3185 m
->hw
|= IWINFO_80211_AC
;
3186 m
->ht
|= IWINFO_HTMODE_VHT20
| IWINFO_HTMODE_VHT40
| IWINFO_HTMODE_VHT80
;
3188 switch ((m
->nl_vht
>> 2) & 3)
3191 m
->ht
|= IWINFO_HTMODE_VHT80_80
;
3195 m
->ht
|= IWINFO_HTMODE_VHT160
;
3200 m
->hw
|= IWINFO_80211_A
;
3204 if (m
->bands
& IWINFO_BAND_60
)
3206 m
->hw
|= IWINFO_80211_AD
;
3211 static int nl80211_get_modelist_cb(struct nl_msg
*msg
, void *arg
)
3213 struct nl80211_modes
*m
= arg
;
3215 struct nlattr
**attr
= nl80211_parse(msg
);
3216 struct nlattr
*bands
[NL80211_BAND_ATTR_MAX
+ 1];
3217 struct nlattr
*band
;
3219 if (attr
[NL80211_ATTR_WIPHY_BANDS
])
3221 nla_for_each_nested(band
, attr
[NL80211_ATTR_WIPHY_BANDS
], bands_remain
)
3223 m
->bands
|= nl80211_get_band(band
->nla_type
);
3225 nla_parse(bands
, NL80211_BAND_ATTR_MAX
,
3226 nla_data(band
), nla_len(band
), NULL
);
3228 if (bands
[NL80211_BAND_ATTR_HT_CAPA
])
3229 m
->nl_ht
= nla_get_u16(bands
[NL80211_BAND_ATTR_HT_CAPA
]);
3231 if (bands
[NL80211_BAND_ATTR_VHT_CAPA
])
3232 m
->nl_vht
= nla_get_u32(bands
[NL80211_BAND_ATTR_VHT_CAPA
]);
3234 if (bands
[NL80211_BAND_ATTR_IFTYPE_DATA
]) {
3235 struct nlattr
*tb
[NL80211_BAND_IFTYPE_ATTR_MAX
+ 1];
3236 struct nlattr
*nl_iftype
;
3240 nla_for_each_nested(nl_iftype
, bands
[NL80211_BAND_ATTR_IFTYPE_DATA
], rem_band
) {
3241 nla_parse(tb
, NL80211_BAND_IFTYPE_ATTR_MAX
,
3242 nla_data(nl_iftype
), nla_len(nl_iftype
), NULL
);
3243 if (tb
[NL80211_BAND_IFTYPE_ATTR_HE_CAP_PHY
]) {
3244 len
= nla_len(tb
[NL80211_BAND_IFTYPE_ATTR_HE_CAP_PHY
]);
3246 if (len
> sizeof(m
->he_phy_cap
) - 1)
3247 len
= sizeof(m
->he_phy_cap
) - 1;
3248 memcpy(&((__u8
*)m
->he_phy_cap
)[1],
3249 nla_data(tb
[NL80211_BAND_IFTYPE_ATTR_HE_CAP_PHY
]),
3262 static int nl80211_get_hwmodelist(const char *ifname
, int *buf
)
3264 struct nl80211_msg_conveyor
*cv
;
3265 struct nl80211_modes m
= {};
3266 uint32_t features
= nl80211_get_protocol_features(ifname
);
3269 flags
= features
& NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP
? NLM_F_DUMP
: 0;
3270 cv
= nl80211_msg(ifname
, NL80211_CMD_GET_WIPHY
, flags
);
3274 NLA_PUT_FLAG(cv
->msg
, NL80211_ATTR_SPLIT_WIPHY_DUMP
);
3275 if (nl80211_send(cv
, nl80211_get_modelist_cb
, &m
))
3276 goto nla_put_failure
;
3278 nl80211_eval_modelist(&m
);
3295 static int nl80211_get_htmode_cb(struct nl_msg
*msg
, void *arg
)
3297 struct nlattr
**tb
= nl80211_parse(msg
);
3299 struct chan_info
*chn
= arg
;
3301 if ((cur
= tb
[NL80211_ATTR_CHANNEL_WIDTH
]))
3302 chn
->width
= nla_get_u32(cur
);
3304 if ((cur
= tb
[NL80211_ATTR_BSS_HT_OPMODE
]))
3305 chn
->mode
= nla_get_u32(cur
);
3310 static int nl80211_get_htmode(const char *ifname
, int *buf
)
3312 struct chan_info chn
= { 0 };
3313 char *res
, b
[2] = { 0 };
3317 res
= nl80211_phy2ifname(ifname
);
3320 err
= nl80211_request(res
? res
: ifname
,
3321 NL80211_CMD_GET_INTERFACE
, 0,
3322 nl80211_get_htmode_cb
, &chn
);
3326 if (nl80211_hostapd_query(res
? res
: ifname
, "ieee80211ax", b
, sizeof(b
)))
3328 else if (nl80211_wpactl_query(res
? res
: ifname
, "wifi_generation", b
, sizeof(b
)))
3331 switch (chn
.width
) {
3332 case NL80211_CHAN_WIDTH_20
:
3334 *buf
= IWINFO_HTMODE_HE20
;
3335 else if (chn
.mode
== -1)
3336 *buf
= IWINFO_HTMODE_VHT20
;
3338 *buf
= IWINFO_HTMODE_HT20
;
3340 case NL80211_CHAN_WIDTH_40
:
3342 *buf
= IWINFO_HTMODE_HE40
;
3343 else if (chn
.mode
== -1)
3344 *buf
= IWINFO_HTMODE_VHT40
;
3346 *buf
= IWINFO_HTMODE_HT40
;
3348 case NL80211_CHAN_WIDTH_80
:
3350 *buf
= IWINFO_HTMODE_HE80
;
3352 *buf
= IWINFO_HTMODE_VHT80
;
3354 case NL80211_CHAN_WIDTH_80P80
:
3356 *buf
= IWINFO_HTMODE_HE80_80
;
3358 *buf
= IWINFO_HTMODE_VHT80_80
;
3360 case NL80211_CHAN_WIDTH_160
:
3362 *buf
= IWINFO_HTMODE_HE160
;
3364 *buf
= IWINFO_HTMODE_VHT160
;
3366 case NL80211_CHAN_WIDTH_5
:
3367 case NL80211_CHAN_WIDTH_10
:
3368 case NL80211_CHAN_WIDTH_20_NOHT
:
3369 *buf
= IWINFO_HTMODE_NOHT
;
3378 static int nl80211_get_htmodelist(const char *ifname
, int *buf
)
3380 struct nl80211_msg_conveyor
*cv
;
3381 struct nl80211_modes m
= {};
3382 uint32_t features
= nl80211_get_protocol_features(ifname
);
3385 flags
= features
& NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP
? NLM_F_DUMP
: 0;
3386 cv
= nl80211_msg(ifname
, NL80211_CMD_GET_WIPHY
, flags
);
3390 NLA_PUT_FLAG(cv
->msg
, NL80211_ATTR_SPLIT_WIPHY_DUMP
);
3391 if (nl80211_send(cv
, nl80211_get_modelist_cb
, &m
))
3392 goto nla_put_failure
;
3394 nl80211_eval_modelist(&m
);
3407 static int nl80211_get_ifcomb_cb(struct nl_msg
*msg
, void *arg
)
3409 struct nlattr
**attr
= nl80211_parse(msg
);
3410 struct nlattr
*comb
;
3412 int comb_rem
, limit_rem
, mode_rem
;
3415 if (!attr
[NL80211_ATTR_INTERFACE_COMBINATIONS
])
3418 nla_for_each_nested(comb
, attr
[NL80211_ATTR_INTERFACE_COMBINATIONS
], comb_rem
)
3420 static struct nla_policy iface_combination_policy
[NUM_NL80211_IFACE_COMB
] = {
3421 [NL80211_IFACE_COMB_LIMITS
] = { .type
= NLA_NESTED
},
3422 [NL80211_IFACE_COMB_MAXNUM
] = { .type
= NLA_U32
},
3424 struct nlattr
*tb_comb
[NUM_NL80211_IFACE_COMB
+1];
3425 static struct nla_policy iface_limit_policy
[NUM_NL80211_IFACE_LIMIT
] = {
3426 [NL80211_IFACE_LIMIT_TYPES
] = { .type
= NLA_NESTED
},
3427 [NL80211_IFACE_LIMIT_MAX
] = { .type
= NLA_U32
},
3429 struct nlattr
*tb_limit
[NUM_NL80211_IFACE_LIMIT
+1];
3430 struct nlattr
*limit
;
3432 nla_parse_nested(tb_comb
, NUM_NL80211_IFACE_COMB
, comb
, iface_combination_policy
);
3434 if (!tb_comb
[NL80211_IFACE_COMB_LIMITS
])
3437 nla_for_each_nested(limit
, tb_comb
[NL80211_IFACE_COMB_LIMITS
], limit_rem
)
3439 struct nlattr
*mode
;
3441 nla_parse_nested(tb_limit
, NUM_NL80211_IFACE_LIMIT
, limit
, iface_limit_policy
);
3443 if (!tb_limit
[NL80211_IFACE_LIMIT_TYPES
] ||
3444 !tb_limit
[NL80211_IFACE_LIMIT_MAX
])
3447 if (nla_get_u32(tb_limit
[NL80211_IFACE_LIMIT_MAX
]) < 2)
3450 nla_for_each_nested(mode
, tb_limit
[NL80211_IFACE_LIMIT_TYPES
], mode_rem
) {
3451 if (nla_type(mode
) == NL80211_IFTYPE_AP
)
3460 static int nl80211_get_mbssid_support(const char *ifname
, int *buf
)
3462 if (nl80211_request(ifname
, NL80211_CMD_GET_WIPHY
, 0,
3463 nl80211_get_ifcomb_cb
, buf
))
3469 static int nl80211_hardware_id_from_fdt(struct iwinfo_hardware_id
*id
, const char *ifname
)
3471 char *phy
, path
[PATH_MAX
];
3473 /* Try to determine the phy name from the given interface */
3474 phy
= nl80211_ifname2phy(ifname
);
3476 snprintf(path
, sizeof(path
), "/sys/class/%s/%s/device/of_node/compatible",
3477 phy
? "ieee80211" : "net", phy
? phy
: ifname
);
3479 if (nl80211_readstr(path
, id
->compatible
, sizeof(id
->compatible
)) <= 0)
3486 static int nl80211_get_hardware_id(const char *ifname
, char *buf
)
3488 struct iwinfo_hardware_id
*id
= (struct iwinfo_hardware_id
*)buf
;
3489 char *phy
, num
[8], path
[PATH_MAX
];
3492 struct { const char *path
; uint16_t *dest
; } lookup
[] = {
3493 { "vendor", &id
->vendor_id
},
3494 { "device", &id
->device_id
},
3495 { "subsystem_vendor", &id
->subsystem_vendor_id
},
3496 { "subsystem_device", &id
->subsystem_device_id
},
3497 { "../idVendor", &id
->subsystem_vendor_id
},
3498 { "../idProduct", &id
->subsystem_device_id
}
3501 memset(id
, 0, sizeof(*id
));
3503 /* Try to determine the phy name from the given interface */
3504 phy
= nl80211_ifname2phy(ifname
);
3506 for (i
= 0; i
< ARRAY_SIZE(lookup
); i
++)
3508 snprintf(path
, sizeof(path
), "/sys/class/%s/%s/device/%s",
3509 phy
? "ieee80211" : "net",
3510 phy
? phy
: ifname
, lookup
[i
].path
);
3512 if (nl80211_readstr(path
, num
, sizeof(num
)) > 0)
3513 *lookup
[i
].dest
= strtoul(num
, NULL
, 16);
3516 /* Failed to obtain hardware PCI/USB IDs... */
3517 if (id
->vendor_id
== 0 && id
->device_id
== 0 &&
3518 id
->subsystem_vendor_id
== 0 && id
->subsystem_device_id
== 0)
3519 /* ... first fallback to FDT ... */
3520 if (nl80211_hardware_id_from_fdt(id
, ifname
) == -1)
3521 /* ... then board config */
3522 return iwinfo_hardware_id_from_mtd(id
);
3527 static const struct iwinfo_hardware_entry
*
3528 nl80211_get_hardware_entry(const char *ifname
)
3530 struct iwinfo_hardware_id id
;
3532 if (nl80211_get_hardware_id(ifname
, (char *)&id
))
3535 return iwinfo_hardware(&id
);
3538 static int nl80211_get_hardware_name(const char *ifname
, char *buf
)
3540 const struct iwinfo_hardware_entry
*hw
;
3542 if (!(hw
= nl80211_get_hardware_entry(ifname
)))
3543 sprintf(buf
, "Generic MAC80211");
3545 sprintf(buf
, "%s %s", hw
->vendor_name
, hw
->device_name
);
3550 static int nl80211_get_txpower_offset(const char *ifname
, int *buf
)
3552 const struct iwinfo_hardware_entry
*hw
;
3554 if (!(hw
= nl80211_get_hardware_entry(ifname
)))
3557 *buf
= hw
->txpower_offset
;
3561 static int nl80211_get_frequency_offset(const char *ifname
, int *buf
)
3563 const struct iwinfo_hardware_entry
*hw
;
3565 if (!(hw
= nl80211_get_hardware_entry(ifname
)))
3568 *buf
= hw
->frequency_offset
;
3572 static int nl80211_lookup_phyname(const char *section
, char *buf
)
3577 if (!strncmp(section
, "path=", 5))
3578 idx
= nl80211_phy_idx_from_path(section
+ 5);
3579 else if (!strncmp(section
, "macaddr=", 8))
3580 idx
= nl80211_phy_idx_from_macaddr(section
+ 8);
3582 idx
= nl80211_phy_idx_from_uci(section
);
3587 name
= nl80211_phyidx2name(idx
);
3595 static int nl80211_phy_path(const char *phyname
, const char **path
)
3597 if (strchr(phyname
, '/'))
3600 *path
= nl80211_phy_path_str(phyname
);
3607 const struct iwinfo_ops nl80211_ops
= {
3609 .probe
= nl80211_probe
,
3610 .channel
= nl80211_get_channel
,
3611 .center_chan1
= nl80211_get_center_chan1
,
3612 .center_chan2
= nl80211_get_center_chan2
,
3613 .frequency
= nl80211_get_frequency
,
3614 .frequency_offset
= nl80211_get_frequency_offset
,
3615 .txpower
= nl80211_get_txpower
,
3616 .txpower_offset
= nl80211_get_txpower_offset
,
3617 .bitrate
= nl80211_get_bitrate
,
3618 .signal
= nl80211_get_signal
,
3619 .noise
= nl80211_get_noise
,
3620 .quality
= nl80211_get_quality
,
3621 .quality_max
= nl80211_get_quality_max
,
3622 .mbssid_support
= nl80211_get_mbssid_support
,
3623 .hwmodelist
= nl80211_get_hwmodelist
,
3624 .htmodelist
= nl80211_get_htmodelist
,
3625 .htmode
= nl80211_get_htmode
,
3626 .mode
= nl80211_get_mode
,
3627 .ssid
= nl80211_get_ssid
,
3628 .bssid
= nl80211_get_bssid
,
3629 .country
= nl80211_get_country
,
3630 .hardware_id
= nl80211_get_hardware_id
,
3631 .hardware_name
= nl80211_get_hardware_name
,
3632 .encryption
= nl80211_get_encryption
,
3633 .phyname
= nl80211_get_phyname
,
3634 .assoclist
= nl80211_get_assoclist
,
3635 .txpwrlist
= nl80211_get_txpwrlist
,
3636 .scanlist
= nl80211_get_scanlist
,
3637 .freqlist
= nl80211_get_freqlist
,
3638 .countrylist
= nl80211_get_countrylist
,
3639 .survey
= nl80211_get_survey
,
3640 .lookup_phy
= nl80211_lookup_phyname
,
3641 .phy_path
= nl80211_phy_path
,
3642 .close
= nl80211_close