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
, lmode
= 1, clmode
, phyidx
;
812 static char nif
[IFNAMSIZ
] = { 0 };
816 /* Only accept phy name in the form of phy%d or radio%d */
820 phyidx
= nl80211_phy_idx_from_phy(ifname
);
822 phyidx
= nl80211_phy_idx_from_uci(ifname
);;
826 memset(nif
, 0, sizeof(nif
));
828 snprintf(buffer
, sizeof(buffer
),
829 "/sys/class/ieee80211/phy%d/device/net", phyidx
);
831 if ((d
= opendir(buffer
)) != NULL
)
833 while ((e
= readdir(d
)) != NULL
)
835 snprintf(buffer
, sizeof(buffer
),
836 "/sys/class/net/%s/ifindex", e
->d_name
);
837 cifidx
= nl80211_readint(buffer
);
842 snprintf(buffer
, sizeof(buffer
),
843 "/sys/class/net/%s/link_mode", e
->d_name
);
844 clmode
= nl80211_readint(buffer
);
846 /* prefer non-supplicant-based devices */
847 if ((ifidx
< 0) || (cifidx
< ifidx
) || ((lmode
== 1) && (clmode
!= 1)))
851 strncpy(nif
, e
->d_name
, sizeof(nif
) - 1);
858 return nif
[0] ? nif
: NULL
;
861 static int nl80211_get_mode_cb(struct nl_msg
*msg
, void *arg
)
864 struct nlattr
**tb
= nl80211_parse(msg
);
865 const int ifmodes
[NL80211_IFTYPE_MAX
+ 1] = {
866 IWINFO_OPMODE_UNKNOWN
, /* unspecified */
867 IWINFO_OPMODE_ADHOC
, /* IBSS */
868 IWINFO_OPMODE_CLIENT
, /* managed */
869 IWINFO_OPMODE_MASTER
, /* AP */
870 IWINFO_OPMODE_AP_VLAN
, /* AP/VLAN */
871 IWINFO_OPMODE_WDS
, /* WDS */
872 IWINFO_OPMODE_MONITOR
, /* monitor */
873 IWINFO_OPMODE_MESHPOINT
, /* mesh point */
874 IWINFO_OPMODE_P2P_CLIENT
, /* P2P-client */
875 IWINFO_OPMODE_P2P_GO
, /* P2P-GO */
878 if (tb
[NL80211_ATTR_IFTYPE
])
879 *mode
= ifmodes
[nla_get_u32(tb
[NL80211_ATTR_IFTYPE
])];
885 static int nl80211_get_mode(const char *ifname
, int *buf
)
889 *buf
= IWINFO_OPMODE_UNKNOWN
;
891 res
= nl80211_phy2ifname(ifname
);
893 nl80211_request(res
? res
: ifname
, NL80211_CMD_GET_INTERFACE
, 0,
894 nl80211_get_mode_cb
, buf
);
896 return (*buf
== IWINFO_OPMODE_UNKNOWN
) ? -1 : 0;
899 static int __nl80211_hostapd_query(const char *ifname
, ...)
902 char *phy
, *search
, *dest
, *key
, *val
, buf
[128];
903 int len
, mode
, found
= 0, match
= 1;
906 if (nl80211_get_mode(ifname
, &mode
))
909 if (mode
!= IWINFO_OPMODE_MASTER
&& mode
!= IWINFO_OPMODE_AP_VLAN
)
912 phy
= nl80211_ifname2phy(ifname
);
917 snprintf(buf
, sizeof(buf
), "/var/run/hostapd-%s.conf", phy
);
918 fp
= fopen(buf
, "r");
923 va_start(ap
, ifname
);
925 /* clear all destination buffers */
928 while ((search
= va_arg(ap_cur
, char *)) != NULL
)
930 dest
= va_arg(ap_cur
, char *);
931 len
= va_arg(ap_cur
, int);
933 memset(dest
, 0, len
);
938 /* iterate applicable lines and copy found values into dest buffers */
939 while (fgets(buf
, sizeof(buf
), fp
))
941 key
= strtok(buf
, " =\t\n");
942 val
= strtok(NULL
, "\n");
944 if (!key
|| !val
|| !*key
|| *key
== '#')
947 if (!strcmp(key
, "interface") || !strcmp(key
, "bss"))
948 match
= !strcmp(ifname
, val
);
955 while ((search
= va_arg(ap_cur
, char *)) != NULL
)
957 dest
= va_arg(ap_cur
, char *);
958 len
= va_arg(ap_cur
, int);
960 if (!strcmp(search
, key
))
962 strncpy(dest
, val
, len
- 1);
978 #define nl80211_hostapd_query(ifname, ...) \
979 __nl80211_hostapd_query(ifname, ##__VA_ARGS__, NULL)
982 static inline int nl80211_wpactl_recv(int sock
, char *buf
, int blen
)
985 struct timeval tv
= { 0, 256000 };
990 memset(buf
, 0, blen
);
992 if (select(sock
+ 1, &rfds
, NULL
, NULL
, &tv
) < 0)
995 if (!FD_ISSET(sock
, &rfds
))
998 return recv(sock
, buf
, blen
- 1, 0);
1001 static int nl80211_wpactl_connect(const char *ifname
, struct sockaddr_un
*local
)
1003 struct sockaddr_un remote
= { 0 };
1004 size_t remote_length
, local_length
;
1006 int sock
= socket(PF_UNIX
, SOCK_DGRAM
, 0);
1010 remote
.sun_family
= AF_UNIX
;
1011 remote_length
= sizeof(remote
.sun_family
) +
1012 sprintf(remote
.sun_path
, "/var/run/wpa_supplicant/%s", ifname
);
1014 /* Set client socket file permissions so that bind() creates the client
1015 * socket with these permissions and there is no need to try to change
1016 * them with chmod() after bind() which would have potential issues with
1017 * race conditions. These permissions are needed to make sure the server
1018 * side (wpa_supplicant or hostapd) can reply to the control interface
1021 * The lchown() calls below after bind() are also part of the needed
1022 * operations to allow the response to go through. Those are using the
1023 * no-deference-symlinks version to avoid races. */
1024 fchmod(sock
, S_IRUSR
| S_IWUSR
| S_IRGRP
| S_IWGRP
);
1026 if (fcntl(sock
, F_SETFD
, fcntl(sock
, F_GETFD
) | FD_CLOEXEC
) < 0)
1032 if (connect(sock
, (struct sockaddr
*)&remote
, remote_length
))
1038 local
->sun_family
= AF_UNIX
;
1039 local_length
= sizeof(local
->sun_family
) +
1040 sprintf(local
->sun_path
, "/var/run/iwinfo-%s-%d", ifname
, getpid());
1042 if (bind(sock
, (struct sockaddr
*)local
, local_length
) < 0)
1048 /* Set group even if we do not have privileges to change owner */
1049 lchown(local
->sun_path
, -1, 101);
1050 lchown(local
->sun_path
, 101, 101);
1055 static int __nl80211_wpactl_query(const char *ifname
, ...)
1058 struct sockaddr_un local
= { 0 };
1059 int len
, mode
, found
= 0, sock
= -1;
1060 char *search
, *dest
, *key
, *val
, *line
, *pos
, buf
[512];
1062 if (nl80211_get_mode(ifname
, &mode
))
1065 if (mode
!= IWINFO_OPMODE_CLIENT
&&
1066 mode
!= IWINFO_OPMODE_ADHOC
&&
1067 mode
!= IWINFO_OPMODE_MESHPOINT
)
1070 sock
= nl80211_wpactl_connect(ifname
, &local
);
1075 va_start(ap
, ifname
);
1077 /* clear all destination buffers */
1078 va_copy(ap_cur
, ap
);
1080 while ((search
= va_arg(ap_cur
, char *)) != NULL
)
1082 dest
= va_arg(ap_cur
, char *);
1083 len
= va_arg(ap_cur
, int);
1085 memset(dest
, 0, len
);
1090 send(sock
, "STATUS", 6, 0);
1094 if (nl80211_wpactl_recv(sock
, buf
, sizeof(buf
)) <= 0)
1100 for (line
= strtok_r(buf
, "\n", &pos
);
1102 line
= strtok_r(NULL
, "\n", &pos
))
1104 key
= strtok(line
, "=");
1105 val
= strtok(NULL
, "\n");
1110 va_copy(ap_cur
, ap
);
1112 while ((search
= va_arg(ap_cur
, char *)) != NULL
)
1114 dest
= va_arg(ap_cur
, char *);
1115 len
= va_arg(ap_cur
, int);
1117 if (!strcmp(search
, key
))
1119 strncpy(dest
, val
, len
- 1);
1134 unlink(local
.sun_path
);
1139 #define nl80211_wpactl_query(ifname, ...) \
1140 __nl80211_wpactl_query(ifname, ##__VA_ARGS__, NULL)
1143 static char * nl80211_ifadd(const char *ifname
)
1145 char path
[PATH_MAX
];
1146 static char nif
[IFNAMSIZ
] = { 0 };
1147 struct nl80211_msg_conveyor
*req
;
1150 req
= nl80211_msg(ifname
, NL80211_CMD_NEW_INTERFACE
, 0);
1153 snprintf(nif
, sizeof(nif
), "tmp.%s", ifname
);
1155 NLA_PUT_STRING(req
->msg
, NL80211_ATTR_IFNAME
, nif
);
1156 NLA_PUT_U32(req
->msg
, NL80211_ATTR_IFTYPE
, NL80211_IFTYPE_STATION
);
1158 nl80211_send(req
, NULL
, NULL
);
1160 snprintf(path
, sizeof(path
) - 1,
1161 "/proc/sys/net/ipv6/conf/%s/disable_ipv6", nif
);
1163 if ((sysfs
= fopen(path
, "w")) != NULL
)
1165 fwrite("0\n", 1, 2, sysfs
);
1178 static void nl80211_ifdel(const char *ifname
)
1180 struct nl80211_msg_conveyor
*req
;
1182 req
= nl80211_msg(ifname
, NL80211_CMD_DEL_INTERFACE
, 0);
1185 NLA_PUT_STRING(req
->msg
, NL80211_ATTR_IFNAME
, ifname
);
1187 nl80211_send(req
, NULL
, NULL
);
1195 static void nl80211_hostapd_hup(const char *ifname
)
1199 char *phy
= nl80211_ifname2phy(ifname
);
1203 snprintf(buf
, sizeof(buf
), "/var/run/wifi-%s.pid", phy
);
1204 if ((fd
= open(buf
, O_RDONLY
)) >= 0)
1206 if (read(fd
, buf
, sizeof(buf
)) > 0)
1218 static int nl80211_probe(const char *ifname
)
1220 return !!nl80211_ifname2phy(ifname
);
1223 struct nl80211_ssid_bssid
{
1224 unsigned char *ssid
;
1225 unsigned char bssid
[7];
1228 static int nl80211_get_macaddr_cb(struct nl_msg
*msg
, void *arg
)
1230 struct nl80211_ssid_bssid
*sb
= arg
;
1231 struct nlattr
**tb
= nl80211_parse(msg
);
1233 if (tb
[NL80211_ATTR_MAC
]) {
1235 memcpy(sb
->bssid
+ 1, nla_data(tb
[NL80211_ATTR_MAC
]),
1236 sizeof(sb
->bssid
) - 1);
1242 static int nl80211_get_ssid_bssid_cb(struct nl_msg
*msg
, void *arg
)
1246 struct nl80211_ssid_bssid
*sb
= arg
;
1247 struct nlattr
**tb
= nl80211_parse(msg
);
1248 struct nlattr
*bss
[NL80211_BSS_MAX
+ 1];
1250 static struct nla_policy bss_policy
[NL80211_BSS_MAX
+ 1] = {
1251 [NL80211_BSS_INFORMATION_ELEMENTS
] = { 0 },
1252 [NL80211_BSS_STATUS
] = { .type
= NLA_U32
},
1255 if (!tb
[NL80211_ATTR_BSS
] ||
1256 nla_parse_nested(bss
, NL80211_BSS_MAX
, tb
[NL80211_ATTR_BSS
],
1258 !bss
[NL80211_BSS_BSSID
] ||
1259 !bss
[NL80211_BSS_STATUS
] ||
1260 !bss
[NL80211_BSS_INFORMATION_ELEMENTS
])
1265 switch (nla_get_u32(bss
[NL80211_BSS_STATUS
]))
1267 case NL80211_BSS_STATUS_ASSOCIATED
:
1268 case NL80211_BSS_STATUS_AUTHENTICATED
:
1269 case NL80211_BSS_STATUS_IBSS_JOINED
:
1273 ie
= nla_data(bss
[NL80211_BSS_INFORMATION_ELEMENTS
]);
1274 ielen
= nla_len(bss
[NL80211_BSS_INFORMATION_ELEMENTS
]);
1276 while (ielen
>= 2 && ielen
>= ie
[1])
1280 memcpy(sb
->ssid
, ie
+ 2, min(ie
[1], IWINFO_ESSID_MAX_SIZE
));
1291 memcpy(sb
->bssid
+ 1, nla_data(bss
[NL80211_BSS_BSSID
]), 6);
1300 static int nl80211_get_ssid(const char *ifname
, char *buf
)
1303 struct nl80211_ssid_bssid sb
= { .ssid
= (unsigned char *)buf
};
1305 /* try to find ssid from scan dump results */
1306 res
= nl80211_phy2ifname(ifname
);
1309 nl80211_request(res
? res
: ifname
, NL80211_CMD_GET_SCAN
, NLM_F_DUMP
,
1310 nl80211_get_ssid_bssid_cb
, &sb
);
1312 /* failed, try to find from hostapd info */
1313 if (sb
.ssid
[0] == 0)
1314 nl80211_hostapd_query(ifname
, "ssid", sb
.ssid
,
1315 IWINFO_ESSID_MAX_SIZE
+ 1);
1317 /* failed, try to obtain Mesh ID */
1318 if (sb
.ssid
[0] == 0)
1319 iwinfo_ubus_query(res
? res
: ifname
, "mesh_id",
1320 buf
, IWINFO_ESSID_MAX_SIZE
+ 1);
1322 return (sb
.ssid
[0] == 0) ? -1 : 0;
1325 static int nl80211_get_bssid(const char *ifname
, char *buf
)
1327 char *res
, bssid
[sizeof("FF:FF:FF:FF:FF:FF\0")];
1328 struct nl80211_ssid_bssid sb
= { };
1330 res
= nl80211_phy2ifname(ifname
);
1332 /* try to obtain mac address via NL80211_CMD_GET_INTERFACE */
1333 nl80211_request(res
? res
: ifname
, NL80211_CMD_GET_INTERFACE
, 0,
1334 nl80211_get_macaddr_cb
, &sb
);
1336 /* failed, try to find bssid from scan dump results */
1337 if (sb
.bssid
[0] == 0)
1338 nl80211_request(res
? res
: ifname
,
1339 NL80211_CMD_GET_SCAN
, NLM_F_DUMP
,
1340 nl80211_get_ssid_bssid_cb
, &sb
);
1342 /* failed, try to find mac from hostapd info */
1343 if ((sb
.bssid
[0] == 0) &&
1344 nl80211_hostapd_query(ifname
, "bssid", bssid
, sizeof(bssid
)))
1347 sb
.bssid
[1] = strtol(&bssid
[0], NULL
, 16);
1348 sb
.bssid
[2] = strtol(&bssid
[3], NULL
, 16);
1349 sb
.bssid
[3] = strtol(&bssid
[6], NULL
, 16);
1350 sb
.bssid
[4] = strtol(&bssid
[9], NULL
, 16);
1351 sb
.bssid
[5] = strtol(&bssid
[12], NULL
, 16);
1352 sb
.bssid
[6] = strtol(&bssid
[15], NULL
, 16);
1357 sprintf(buf
, "%02X:%02X:%02X:%02X:%02X:%02X",
1358 sb
.bssid
[1], sb
.bssid
[2], sb
.bssid
[3],
1359 sb
.bssid
[4], sb
.bssid
[5], sb
.bssid
[6]);
1368 static int nl80211_get_frequency_scan_cb(struct nl_msg
*msg
, void *arg
)
1371 struct nlattr
**attr
= nl80211_parse(msg
);
1372 struct nlattr
*binfo
[NL80211_BSS_MAX
+ 1];
1374 static struct nla_policy bss_policy
[NL80211_BSS_MAX
+ 1] = {
1375 [NL80211_BSS_FREQUENCY
] = { .type
= NLA_U32
},
1376 [NL80211_BSS_STATUS
] = { .type
= NLA_U32
},
1379 if (attr
[NL80211_ATTR_BSS
] &&
1380 !nla_parse_nested(binfo
, NL80211_BSS_MAX
,
1381 attr
[NL80211_ATTR_BSS
], bss_policy
))
1383 if (binfo
[NL80211_BSS_STATUS
] && binfo
[NL80211_BSS_FREQUENCY
])
1384 *freq
= nla_get_u32(binfo
[NL80211_BSS_FREQUENCY
]);
1390 static int nl80211_get_frequency_info_cb(struct nl_msg
*msg
, void *arg
)
1393 struct nlattr
**tb
= nl80211_parse(msg
);
1395 if (tb
[NL80211_ATTR_WIPHY_FREQ
])
1396 *freq
= nla_get_u32(tb
[NL80211_ATTR_WIPHY_FREQ
]);
1401 static int nl80211_get_frequency(const char *ifname
, int *buf
)
1403 char *res
, channel
[4] = { 0 }, hwmode
[3] = { 0 }, ax
[2] = { 0 };
1405 /* try to find frequency from interface info */
1406 res
= nl80211_phy2ifname(ifname
);
1409 nl80211_request(res
? res
: ifname
, NL80211_CMD_GET_INTERFACE
, 0,
1410 nl80211_get_frequency_info_cb
, buf
);
1412 /* failed, try to find frequency from hostapd info */
1414 nl80211_hostapd_query(ifname
, "hw_mode", hwmode
, sizeof(hwmode
),
1415 "channel", channel
, sizeof(channel
),
1416 "ieee80211ax", ax
, sizeof(ax
)) >= 2)
1418 *buf
= nl80211_channel2freq(atoi(channel
), hwmode
, ax
[0] == '1');
1421 /* failed, try to find frequency from scan results */
1424 res
= nl80211_phy2ifname(ifname
);
1426 nl80211_request(res
? res
: ifname
, NL80211_CMD_GET_SCAN
, NLM_F_DUMP
,
1427 nl80211_get_frequency_scan_cb
, buf
);
1430 return (*buf
== 0) ? -1 : 0;
1433 static int nl80211_get_center_freq1_cb(struct nl_msg
*msg
, void *arg
)
1436 struct nlattr
**tb
= nl80211_parse(msg
);
1438 if (tb
[NL80211_ATTR_CENTER_FREQ1
])
1439 *freq
= nla_get_u32(tb
[NL80211_ATTR_CENTER_FREQ1
]);
1444 static int nl80211_get_center_freq1(const char *ifname
, int *buf
)
1448 /* try to find frequency from interface info */
1449 res
= nl80211_phy2ifname(ifname
);
1452 nl80211_request(res
? res
: ifname
, NL80211_CMD_GET_INTERFACE
, 0,
1453 nl80211_get_center_freq1_cb
, buf
);
1455 return (*buf
== 0) ? -1 : 0;
1458 static int nl80211_get_center_freq2_cb(struct nl_msg
*msg
, void *arg
)
1461 struct nlattr
**tb
= nl80211_parse(msg
);
1463 if (tb
[NL80211_ATTR_CENTER_FREQ2
])
1464 *freq
= nla_get_u32(tb
[NL80211_ATTR_CENTER_FREQ2
]);
1469 static int nl80211_get_center_freq2(const char *ifname
, int *buf
)
1473 /* try to find frequency from interface info */
1474 res
= nl80211_phy2ifname(ifname
);
1477 nl80211_request(res
? res
: ifname
, NL80211_CMD_GET_INTERFACE
, 0,
1478 nl80211_get_center_freq2_cb
, buf
);
1480 return (*buf
== 0) ? -1 : 0;
1483 static int nl80211_get_channel(const char *ifname
, int *buf
)
1485 if (!nl80211_get_frequency(ifname
, buf
))
1487 *buf
= nl80211_freq2channel(*buf
);
1494 static int nl80211_get_center_chan1(const char *ifname
, int *buf
)
1496 if (!nl80211_get_center_freq1(ifname
, buf
))
1498 *buf
= nl80211_freq2channel(*buf
);
1505 static int nl80211_get_center_chan2(const char *ifname
, int *buf
)
1507 if (!nl80211_get_center_freq2(ifname
, buf
))
1509 *buf
= nl80211_freq2channel(*buf
);
1516 static int nl80211_get_txpower_cb(struct nl_msg
*msg
, void *arg
)
1519 struct nlattr
**tb
= nl80211_parse(msg
);
1521 if (tb
[NL80211_ATTR_WIPHY_TX_POWER_LEVEL
])
1522 *buf
= iwinfo_mbm2dbm(nla_get_u32(tb
[NL80211_ATTR_WIPHY_TX_POWER_LEVEL
]));
1527 static int nl80211_get_txpower(const char *ifname
, int *buf
)
1531 res
= nl80211_phy2ifname(ifname
);
1534 if (nl80211_request(res
? res
: ifname
, NL80211_CMD_GET_INTERFACE
, 0,
1535 nl80211_get_txpower_cb
, buf
))
1542 static int nl80211_fill_signal_cb(struct nl_msg
*msg
, void *arg
)
1546 struct nl80211_rssi_rate
*rr
= arg
;
1547 struct nlattr
**attr
= nl80211_parse(msg
);
1548 struct nlattr
*sinfo
[NL80211_STA_INFO_MAX
+ 1];
1549 struct nlattr
*rinfo
[NL80211_RATE_INFO_MAX
+ 1];
1551 static struct nla_policy stats_policy
[NL80211_STA_INFO_MAX
+ 1] = {
1552 [NL80211_STA_INFO_INACTIVE_TIME
] = { .type
= NLA_U32
},
1553 [NL80211_STA_INFO_RX_BYTES
] = { .type
= NLA_U32
},
1554 [NL80211_STA_INFO_TX_BYTES
] = { .type
= NLA_U32
},
1555 [NL80211_STA_INFO_RX_PACKETS
] = { .type
= NLA_U32
},
1556 [NL80211_STA_INFO_TX_PACKETS
] = { .type
= NLA_U32
},
1557 [NL80211_STA_INFO_SIGNAL
] = { .type
= NLA_U8
},
1558 [NL80211_STA_INFO_TX_BITRATE
] = { .type
= NLA_NESTED
},
1559 [NL80211_STA_INFO_LLID
] = { .type
= NLA_U16
},
1560 [NL80211_STA_INFO_PLID
] = { .type
= NLA_U16
},
1561 [NL80211_STA_INFO_PLINK_STATE
] = { .type
= NLA_U8
},
1564 static struct nla_policy rate_policy
[NL80211_RATE_INFO_MAX
+ 1] = {
1565 [NL80211_RATE_INFO_BITRATE
] = { .type
= NLA_U16
},
1566 [NL80211_RATE_INFO_MCS
] = { .type
= NLA_U8
},
1567 [NL80211_RATE_INFO_40_MHZ_WIDTH
] = { .type
= NLA_FLAG
},
1568 [NL80211_RATE_INFO_SHORT_GI
] = { .type
= NLA_FLAG
},
1571 if (attr
[NL80211_ATTR_STA_INFO
])
1573 if (!nla_parse_nested(sinfo
, NL80211_STA_INFO_MAX
,
1574 attr
[NL80211_ATTR_STA_INFO
], stats_policy
))
1576 if (sinfo
[NL80211_STA_INFO_SIGNAL
])
1578 dbm
= nla_get_u8(sinfo
[NL80211_STA_INFO_SIGNAL
]);
1579 rr
->rssi
= (rr
->rssi
* rr
->rssi_samples
+ dbm
) / (rr
->rssi_samples
+ 1);
1583 if (sinfo
[NL80211_STA_INFO_TX_BITRATE
])
1585 if (!nla_parse_nested(rinfo
, NL80211_RATE_INFO_MAX
,
1586 sinfo
[NL80211_STA_INFO_TX_BITRATE
],
1589 if (rinfo
[NL80211_RATE_INFO_BITRATE
])
1591 mbit
= nla_get_u16(rinfo
[NL80211_RATE_INFO_BITRATE
]);
1592 rr
->rate
= (rr
->rate
* rr
->rate_samples
+ mbit
) / (rr
->rate_samples
+ 1);
1603 static void nl80211_fill_signal(const char *ifname
, struct nl80211_rssi_rate
*r
)
1608 memset(r
, 0, sizeof(*r
));
1610 if ((d
= opendir("/sys/class/net")) != NULL
)
1612 while ((de
= readdir(d
)) != NULL
)
1614 if (!strncmp(de
->d_name
, ifname
, strlen(ifname
)) &&
1615 (!de
->d_name
[strlen(ifname
)] ||
1616 !strncmp(&de
->d_name
[strlen(ifname
)], ".sta", 4)))
1618 nl80211_request(de
->d_name
, NL80211_CMD_GET_STATION
,
1619 NLM_F_DUMP
, nl80211_fill_signal_cb
, r
);
1627 static int nl80211_get_bitrate(const char *ifname
, int *buf
)
1629 struct nl80211_rssi_rate rr
;
1631 nl80211_fill_signal(ifname
, &rr
);
1633 if (rr
.rate_samples
)
1635 *buf
= (rr
.rate
* 100);
1642 static int nl80211_get_signal(const char *ifname
, int *buf
)
1644 struct nl80211_rssi_rate rr
;
1646 nl80211_fill_signal(ifname
, &rr
);
1648 if (rr
.rssi_samples
)
1657 static int nl80211_get_noise_cb(struct nl_msg
*msg
, void *arg
)
1659 int8_t *noise
= arg
;
1660 struct nlattr
**tb
= nl80211_parse(msg
);
1661 struct nlattr
*si
[NL80211_SURVEY_INFO_MAX
+ 1];
1663 static struct nla_policy sp
[NL80211_SURVEY_INFO_MAX
+ 1] = {
1664 [NL80211_SURVEY_INFO_FREQUENCY
] = { .type
= NLA_U32
},
1665 [NL80211_SURVEY_INFO_NOISE
] = { .type
= NLA_U8
},
1668 if (!tb
[NL80211_ATTR_SURVEY_INFO
])
1671 if (nla_parse_nested(si
, NL80211_SURVEY_INFO_MAX
,
1672 tb
[NL80211_ATTR_SURVEY_INFO
], sp
))
1675 if (!si
[NL80211_SURVEY_INFO_NOISE
])
1678 if (!*noise
|| si
[NL80211_SURVEY_INFO_IN_USE
])
1679 *noise
= (int8_t)nla_get_u8(si
[NL80211_SURVEY_INFO_NOISE
]);
1685 static int nl80211_get_noise(const char *ifname
, int *buf
)
1689 if (nl80211_request(ifname
, NL80211_CMD_GET_SURVEY
, NLM_F_DUMP
,
1690 nl80211_get_noise_cb
, &noise
))
1701 static int nl80211_get_quality(const char *ifname
, int *buf
)
1705 if (!nl80211_get_signal(ifname
, &signal
))
1707 /* A positive signal level is usually just a quality
1708 * value, pass through as-is */
1714 /* The cfg80211 wext compat layer assumes a signal range
1715 * of -110 dBm to -40 dBm, the quality value is derived
1716 * by adding 110 to the signal level */
1721 else if (signal
> -40)
1724 *buf
= (signal
+ 110);
1733 static int nl80211_get_quality_max(const char *ifname
, int *buf
)
1735 /* The cfg80211 wext compat layer assumes a maximum
1742 static int nl80211_check_wepkey(const char *key
)
1746 switch (strlen(key
))
1750 return IWINFO_CIPHER_WEP40
;
1754 return IWINFO_CIPHER_WEP104
;
1765 } wpa_key_mgmt_strings
[] = {
1766 { "IEEE 802.1X/EAP", 0, IWINFO_KMGMT_8021x
},
1767 { "EAP-SUITE-B-192", 4, IWINFO_KMGMT_8021x
},
1768 { "EAP-SUITE-B", 4, IWINFO_KMGMT_8021x
},
1769 { "EAP-SHA384", 4, IWINFO_KMGMT_8021x
},
1770 { "EAP-SHA256", 0, IWINFO_KMGMT_8021x
},
1771 { "PSK-SHA256", 0, IWINFO_KMGMT_PSK
},
1772 { "NONE", 0, IWINFO_KMGMT_NONE
},
1773 { "None", 0, IWINFO_KMGMT_NONE
},
1774 { "PSK", 0, IWINFO_KMGMT_PSK
},
1775 { "EAP", 0, IWINFO_KMGMT_8021x
},
1776 { "SAE", 4, IWINFO_KMGMT_SAE
},
1777 { "OWE", 4, IWINFO_KMGMT_OWE
}
1780 static void parse_wpa_suites(const char *str
, int defversion
,
1781 uint8_t *versions
, uint8_t *suites
)
1785 const char *p
, *q
, *m
, *sep
= " \t\n,-+/";
1791 for (i
= 0; i
< ARRAY_SIZE(wpa_key_mgmt_strings
); i
++)
1793 m
= wpa_key_mgmt_strings
[i
].match
;
1796 if (!strncmp(q
, m
, l
) && (!q
[l
] || strchr(sep
, q
[l
])))
1798 if (wpa_key_mgmt_strings
[i
].version
!= 0)
1799 version
= wpa_key_mgmt_strings
[i
].version
;
1801 version
= defversion
;
1803 *versions
|= version
;
1804 *suites
|= wpa_key_mgmt_strings
[i
].suite
;
1812 q
+= strcspn(q
, sep
);
1814 p
= q
+ strspn(q
, sep
);
1821 } wpa_cipher_strings
[] = {
1822 { "WEP-104", IWINFO_CIPHER_WEP104
},
1823 { "WEP-40", IWINFO_CIPHER_WEP40
},
1824 { "NONE", IWINFO_CIPHER_NONE
},
1825 { "TKIP", IWINFO_CIPHER_TKIP
},
1826 { "CCMP-256",IWINFO_CIPHER_CCMP256
},
1827 { "CCMP", IWINFO_CIPHER_CCMP
},
1828 { "GCMP-256",IWINFO_CIPHER_GCMP256
},
1829 { "GCMP", IWINFO_CIPHER_GCMP
}
1832 static void parse_wpa_ciphers(const char *str
, uint16_t *ciphers
)
1836 const char *m
, *p
, *q
, *sep
= " \t\n,-+/";
1842 for (i
= 0; i
< ARRAY_SIZE(wpa_cipher_strings
); i
++)
1844 m
= wpa_cipher_strings
[i
].match
;
1847 if (!strncmp(q
, m
, l
) && (!q
[l
] || strchr(sep
, q
[l
])))
1849 *ciphers
|= wpa_cipher_strings
[i
].cipher
;
1857 q
+= strcspn(q
, sep
);
1859 p
= q
+ strspn(q
, sep
);
1863 static int nl80211_get_encryption(const char *ifname
, char *buf
)
1867 uint8_t wpa_version
= 0;
1868 char wpa
[2], wpa_key_mgmt
[64], wpa_pairwise
[16], wpa_groupwise
[16];
1869 char auth_algs
[2], wep_key0
[27], wep_key1
[27], wep_key2
[27], wep_key3
[27];
1872 struct iwinfo_crypto_entry
*c
= (struct iwinfo_crypto_entry
*)buf
;
1874 /* WPA supplicant */
1875 if (nl80211_wpactl_query(ifname
,
1876 "pairwise_cipher", wpa_pairwise
, sizeof(wpa_pairwise
),
1877 "group_cipher", wpa_groupwise
, sizeof(wpa_groupwise
),
1878 "key_mgmt", wpa_key_mgmt
, sizeof(wpa_key_mgmt
),
1879 "mode", mode
, sizeof(mode
)))
1882 if (!strcmp(wpa_key_mgmt
, "NONE"))
1884 parse_wpa_ciphers(wpa_pairwise
, &c
->pair_ciphers
);
1885 parse_wpa_ciphers(wpa_groupwise
, &c
->group_ciphers
);
1887 if (c
->pair_ciphers
!= 0 && c
->pair_ciphers
!= IWINFO_CIPHER_NONE
) {
1889 c
->auth_suites
= IWINFO_KMGMT_NONE
;
1890 c
->auth_algs
= IWINFO_AUTH_OPEN
| IWINFO_AUTH_SHARED
;
1893 c
->pair_ciphers
= 0;
1894 c
->group_ciphers
= 0;
1899 else if (!strcmp(mode
, "mesh") && !strcmp(wpa_key_mgmt
, "UNKNOWN"))
1903 c
->auth_suites
= IWINFO_KMGMT_SAE
;
1904 c
->pair_ciphers
= IWINFO_CIPHER_CCMP
;
1905 c
->group_ciphers
= IWINFO_CIPHER_CCMP
;
1911 parse_wpa_ciphers(wpa_pairwise
, &c
->pair_ciphers
);
1912 parse_wpa_ciphers(wpa_groupwise
, &c
->group_ciphers
);
1916 if (!strncmp(p
, "WPA2-", 5) || !strncmp(p
, "WPA2/", 5))
1921 else if (!strncmp(p
, "WPA-", 4))
1927 parse_wpa_suites(p
, wpa_version
, &c
->wpa_version
, &c
->auth_suites
);
1929 c
->enabled
= !!(c
->wpa_version
&& c
->auth_suites
);
1936 else if (nl80211_hostapd_query(ifname
,
1937 "wpa", wpa
, sizeof(wpa
),
1938 "wpa_key_mgmt", wpa_key_mgmt
, sizeof(wpa_key_mgmt
),
1939 "wpa_pairwise", wpa_pairwise
, sizeof(wpa_pairwise
),
1940 "auth_algs", auth_algs
, sizeof(auth_algs
),
1941 "wep_key0", wep_key0
, sizeof(wep_key0
),
1942 "wep_key1", wep_key1
, sizeof(wep_key1
),
1943 "wep_key2", wep_key2
, sizeof(wep_key2
),
1944 "wep_key3", wep_key3
, sizeof(wep_key3
)))
1948 if (wpa_key_mgmt
[0])
1950 for (p
= strtok(wpa_key_mgmt
, " \t"); p
!= NULL
; p
= strtok(NULL
, " \t"))
1952 if (!strncmp(p
, "WPA-", 4))
1955 if (!strncmp(p
, "FT-", 3))
1958 parse_wpa_suites(p
, atoi(wpa
), &c
->wpa_version
, &c
->auth_suites
);
1961 c
->enabled
= c
->wpa_version
? 1 : 0;
1964 if (wpa_pairwise
[0])
1965 parse_wpa_ciphers(wpa_pairwise
, &c
->pair_ciphers
);
1969 switch (atoi(auth_algs
))
1972 c
->auth_algs
|= IWINFO_AUTH_OPEN
;
1976 c
->auth_algs
|= IWINFO_AUTH_SHARED
;
1980 c
->auth_algs
|= IWINFO_AUTH_OPEN
;
1981 c
->auth_algs
|= IWINFO_AUTH_SHARED
;
1985 c
->pair_ciphers
|= nl80211_check_wepkey(wep_key0
);
1986 c
->pair_ciphers
|= nl80211_check_wepkey(wep_key1
);
1987 c
->pair_ciphers
|= nl80211_check_wepkey(wep_key2
);
1988 c
->pair_ciphers
|= nl80211_check_wepkey(wep_key3
);
1990 c
->enabled
= (c
->auth_algs
&& c
->pair_ciphers
) ? 1 : 0;
1993 c
->group_ciphers
= c
->pair_ciphers
;
1998 /* Ad-Hoc or Mesh interfaces without wpa_supplicant are open */
1999 else if (!nl80211_get_mode(ifname
, &opmode
) &&
2000 (opmode
== IWINFO_OPMODE_ADHOC
||
2001 opmode
== IWINFO_OPMODE_MESHPOINT
))
2012 static int nl80211_get_phyname(const char *ifname
, char *buf
)
2016 name
= nl80211_ifname2phy(ifname
);
2023 else if ((name
= nl80211_phy2ifname(ifname
)) != NULL
)
2025 name
= nl80211_ifname2phy(name
);
2029 strcpy(buf
, ifname
);
2038 static void nl80211_parse_rateinfo(struct nlattr
**ri
,
2039 struct iwinfo_rate_entry
*re
)
2041 if (ri
[NL80211_RATE_INFO_BITRATE32
])
2042 re
->rate
= nla_get_u32(ri
[NL80211_RATE_INFO_BITRATE32
]) * 100;
2043 else if (ri
[NL80211_RATE_INFO_BITRATE
])
2044 re
->rate
= nla_get_u16(ri
[NL80211_RATE_INFO_BITRATE
]) * 100;
2046 if (ri
[NL80211_RATE_INFO_HE_MCS
])
2049 re
->mcs
= nla_get_u8(ri
[NL80211_RATE_INFO_HE_MCS
]);
2051 if (ri
[NL80211_RATE_INFO_HE_NSS
])
2052 re
->nss
= nla_get_u8(ri
[NL80211_RATE_INFO_HE_NSS
]);
2053 if (ri
[NL80211_RATE_INFO_HE_GI
])
2054 re
->he_gi
= nla_get_u8(ri
[NL80211_RATE_INFO_HE_GI
]);
2055 if (ri
[NL80211_RATE_INFO_HE_DCM
])
2056 re
->he_dcm
= nla_get_u8(ri
[NL80211_RATE_INFO_HE_DCM
]);
2058 else if (ri
[NL80211_RATE_INFO_VHT_MCS
])
2061 re
->mcs
= nla_get_u8(ri
[NL80211_RATE_INFO_VHT_MCS
]);
2063 if (ri
[NL80211_RATE_INFO_VHT_NSS
])
2064 re
->nss
= nla_get_u8(ri
[NL80211_RATE_INFO_VHT_NSS
]);
2066 else if (ri
[NL80211_RATE_INFO_MCS
])
2069 re
->mcs
= nla_get_u8(ri
[NL80211_RATE_INFO_MCS
]);
2072 if (ri
[NL80211_RATE_INFO_5_MHZ_WIDTH
])
2074 else if (ri
[NL80211_RATE_INFO_10_MHZ_WIDTH
])
2076 else if (ri
[NL80211_RATE_INFO_40_MHZ_WIDTH
])
2078 else if (ri
[NL80211_RATE_INFO_80_MHZ_WIDTH
])
2080 else if (ri
[NL80211_RATE_INFO_80P80_MHZ_WIDTH
] ||
2081 ri
[NL80211_RATE_INFO_160_MHZ_WIDTH
])
2086 if (ri
[NL80211_RATE_INFO_SHORT_GI
])
2087 re
->is_short_gi
= 1;
2089 re
->is_40mhz
= (re
->mhz
== 40);
2092 static int nl80211_get_survey_cb(struct nl_msg
*msg
, void *arg
)
2094 struct nl80211_array_buf
*arr
= arg
;
2095 struct iwinfo_survey_entry
*e
= arr
->buf
;
2096 struct nlattr
**attr
= nl80211_parse(msg
);
2097 struct nlattr
*sinfo
[NL80211_SURVEY_INFO_MAX
+ 1];
2100 static struct nla_policy survey_policy
[NL80211_SURVEY_INFO_MAX
+ 1] = {
2101 [NL80211_SURVEY_INFO_FREQUENCY
] = { .type
= NLA_U32
},
2102 [NL80211_SURVEY_INFO_NOISE
] = { .type
= NLA_U8
},
2103 [NL80211_SURVEY_INFO_TIME
] = { .type
= NLA_U64
},
2104 [NL80211_SURVEY_INFO_TIME_BUSY
] = { .type
= NLA_U64
},
2105 [NL80211_SURVEY_INFO_TIME_EXT_BUSY
] = { .type
= NLA_U64
},
2106 [NL80211_SURVEY_INFO_TIME_RX
] = { .type
= NLA_U64
},
2107 [NL80211_SURVEY_INFO_TIME_TX
] = { .type
= NLA_U64
},
2110 rc
= nla_parse_nested(sinfo
, NL80211_SURVEY_INFO_MAX
,
2111 attr
[NL80211_ATTR_SURVEY_INFO
],
2116 /* advance to end of array */
2118 memset(e
, 0, sizeof(*e
));
2120 if (sinfo
[NL80211_SURVEY_INFO_FREQUENCY
])
2121 e
->mhz
= nla_get_u32(sinfo
[NL80211_SURVEY_INFO_FREQUENCY
]);
2123 if (sinfo
[NL80211_SURVEY_INFO_NOISE
])
2124 e
->noise
= nla_get_u8(sinfo
[NL80211_SURVEY_INFO_NOISE
]);
2126 if (sinfo
[NL80211_SURVEY_INFO_TIME
])
2127 e
->active_time
= nla_get_u64(sinfo
[NL80211_SURVEY_INFO_TIME
]);
2129 if (sinfo
[NL80211_SURVEY_INFO_TIME_BUSY
])
2130 e
->busy_time
= nla_get_u64(sinfo
[NL80211_SURVEY_INFO_TIME_BUSY
]);
2132 if (sinfo
[NL80211_SURVEY_INFO_TIME_EXT_BUSY
])
2133 e
->busy_time_ext
= nla_get_u64(sinfo
[NL80211_SURVEY_INFO_TIME_EXT_BUSY
]);
2135 if (sinfo
[NL80211_SURVEY_INFO_TIME_RX
])
2136 e
->rxtime
= nla_get_u64(sinfo
[NL80211_SURVEY_INFO_TIME_RX
]);
2138 if (sinfo
[NL80211_SURVEY_INFO_TIME_TX
])
2139 e
->txtime
= nla_get_u64(sinfo
[NL80211_SURVEY_INFO_TIME_TX
]);
2146 static void plink_state_to_str(char *dst
, unsigned state
)
2149 case NL80211_PLINK_LISTEN
:
2150 strcpy(dst
, "LISTEN");
2152 case NL80211_PLINK_OPN_SNT
:
2153 strcpy(dst
, "OPN_SNT");
2155 case NL80211_PLINK_OPN_RCVD
:
2156 strcpy(dst
, "OPN_RCVD");
2158 case NL80211_PLINK_CNF_RCVD
:
2159 strcpy(dst
, "CNF_RCVD");
2161 case NL80211_PLINK_ESTAB
:
2162 strcpy(dst
, "ESTAB");
2164 case NL80211_PLINK_HOLDING
:
2165 strcpy(dst
, "HOLDING");
2167 case NL80211_PLINK_BLOCKED
:
2168 strcpy(dst
, "BLOCKED");
2171 strcpy(dst
, "UNKNOWN");
2176 static void power_mode_to_str(char *dst
, struct nlattr
*a
)
2178 enum nl80211_mesh_power_mode pm
= nla_get_u32(a
);
2181 case NL80211_MESH_POWER_ACTIVE
:
2182 strcpy(dst
, "ACTIVE");
2184 case NL80211_MESH_POWER_LIGHT_SLEEP
:
2185 strcpy(dst
, "LIGHT SLEEP");
2187 case NL80211_MESH_POWER_DEEP_SLEEP
:
2188 strcpy(dst
, "DEEP SLEEP");
2191 strcpy(dst
, "UNKNOWN");
2196 static int nl80211_get_assoclist_cb(struct nl_msg
*msg
, void *arg
)
2198 struct nl80211_array_buf
*arr
= arg
;
2199 struct iwinfo_assoclist_entry
*e
= arr
->buf
;
2200 struct nlattr
**attr
= nl80211_parse(msg
);
2201 struct nlattr
*sinfo
[NL80211_STA_INFO_MAX
+ 1];
2202 struct nlattr
*rinfo
[NL80211_RATE_INFO_MAX
+ 1];
2203 struct nl80211_sta_flag_update
*sta_flags
;
2205 static struct nla_policy stats_policy
[NL80211_STA_INFO_MAX
+ 1] = {
2206 [NL80211_STA_INFO_INACTIVE_TIME
] = { .type
= NLA_U32
},
2207 [NL80211_STA_INFO_RX_PACKETS
] = { .type
= NLA_U32
},
2208 [NL80211_STA_INFO_TX_PACKETS
] = { .type
= NLA_U32
},
2209 [NL80211_STA_INFO_RX_BITRATE
] = { .type
= NLA_NESTED
},
2210 [NL80211_STA_INFO_TX_BITRATE
] = { .type
= NLA_NESTED
},
2211 [NL80211_STA_INFO_SIGNAL
] = { .type
= NLA_U8
},
2212 [NL80211_STA_INFO_SIGNAL_AVG
] = { .type
= NLA_U8
},
2213 [NL80211_STA_INFO_RX_BYTES
] = { .type
= NLA_U32
},
2214 [NL80211_STA_INFO_TX_BYTES
] = { .type
= NLA_U32
},
2215 [NL80211_STA_INFO_TX_RETRIES
] = { .type
= NLA_U32
},
2216 [NL80211_STA_INFO_TX_FAILED
] = { .type
= NLA_U32
},
2217 [NL80211_STA_INFO_CONNECTED_TIME
]= { .type
= NLA_U32
},
2218 [NL80211_STA_INFO_RX_DROP_MISC
] = { .type
= NLA_U64
},
2219 [NL80211_STA_INFO_T_OFFSET
] = { .type
= NLA_U64
},
2220 [NL80211_STA_INFO_STA_FLAGS
] =
2221 { .minlen
= sizeof(struct nl80211_sta_flag_update
) },
2222 [NL80211_STA_INFO_EXPECTED_THROUGHPUT
] = { .type
= NLA_U32
},
2224 [NL80211_STA_INFO_LLID
] = { .type
= NLA_U16
},
2225 [NL80211_STA_INFO_PLID
] = { .type
= NLA_U16
},
2226 [NL80211_STA_INFO_PLINK_STATE
] = { .type
= NLA_U8
},
2227 [NL80211_STA_INFO_LOCAL_PM
] = { .type
= NLA_U32
},
2228 [NL80211_STA_INFO_PEER_PM
] = { .type
= NLA_U32
},
2229 [NL80211_STA_INFO_NONPEER_PM
] = { .type
= NLA_U32
},
2232 static struct nla_policy rate_policy
[NL80211_RATE_INFO_MAX
+ 1] = {
2233 [NL80211_RATE_INFO_BITRATE
] = { .type
= NLA_U16
},
2234 [NL80211_RATE_INFO_MCS
] = { .type
= NLA_U8
},
2235 [NL80211_RATE_INFO_40_MHZ_WIDTH
] = { .type
= NLA_FLAG
},
2236 [NL80211_RATE_INFO_SHORT_GI
] = { .type
= NLA_FLAG
},
2239 /* advance to end of array */
2241 memset(e
, 0, sizeof(*e
));
2243 if (attr
[NL80211_ATTR_MAC
])
2244 memcpy(e
->mac
, nla_data(attr
[NL80211_ATTR_MAC
]), 6);
2246 if (attr
[NL80211_ATTR_STA_INFO
] &&
2247 !nla_parse_nested(sinfo
, NL80211_STA_INFO_MAX
,
2248 attr
[NL80211_ATTR_STA_INFO
], stats_policy
))
2250 if (sinfo
[NL80211_STA_INFO_SIGNAL
])
2251 e
->signal
= nla_get_u8(sinfo
[NL80211_STA_INFO_SIGNAL
]);
2253 if (sinfo
[NL80211_STA_INFO_SIGNAL_AVG
])
2254 e
->signal_avg
= nla_get_u8(sinfo
[NL80211_STA_INFO_SIGNAL_AVG
]);
2256 if (sinfo
[NL80211_STA_INFO_INACTIVE_TIME
])
2257 e
->inactive
= nla_get_u32(sinfo
[NL80211_STA_INFO_INACTIVE_TIME
]);
2259 if (sinfo
[NL80211_STA_INFO_CONNECTED_TIME
])
2260 e
->connected_time
= nla_get_u32(sinfo
[NL80211_STA_INFO_CONNECTED_TIME
]);
2262 if (sinfo
[NL80211_STA_INFO_RX_PACKETS
])
2263 e
->rx_packets
= nla_get_u32(sinfo
[NL80211_STA_INFO_RX_PACKETS
]);
2265 if (sinfo
[NL80211_STA_INFO_TX_PACKETS
])
2266 e
->tx_packets
= nla_get_u32(sinfo
[NL80211_STA_INFO_TX_PACKETS
]);
2268 if (sinfo
[NL80211_STA_INFO_RX_BITRATE
] &&
2269 !nla_parse_nested(rinfo
, NL80211_RATE_INFO_MAX
,
2270 sinfo
[NL80211_STA_INFO_RX_BITRATE
], rate_policy
))
2271 nl80211_parse_rateinfo(rinfo
, &e
->rx_rate
);
2273 if (sinfo
[NL80211_STA_INFO_TX_BITRATE
] &&
2274 !nla_parse_nested(rinfo
, NL80211_RATE_INFO_MAX
,
2275 sinfo
[NL80211_STA_INFO_TX_BITRATE
], rate_policy
))
2276 nl80211_parse_rateinfo(rinfo
, &e
->tx_rate
);
2278 if (sinfo
[NL80211_STA_INFO_RX_BYTES
])
2279 e
->rx_bytes
= nla_get_u32(sinfo
[NL80211_STA_INFO_RX_BYTES
]);
2281 if (sinfo
[NL80211_STA_INFO_TX_BYTES
])
2282 e
->tx_bytes
= nla_get_u32(sinfo
[NL80211_STA_INFO_TX_BYTES
]);
2284 if (sinfo
[NL80211_STA_INFO_TX_RETRIES
])
2285 e
->tx_retries
= nla_get_u32(sinfo
[NL80211_STA_INFO_TX_RETRIES
]);
2287 if (sinfo
[NL80211_STA_INFO_TX_FAILED
])
2288 e
->tx_failed
= nla_get_u32(sinfo
[NL80211_STA_INFO_TX_FAILED
]);
2290 if (sinfo
[NL80211_STA_INFO_T_OFFSET
])
2291 e
->t_offset
= nla_get_u64(sinfo
[NL80211_STA_INFO_T_OFFSET
]);
2293 if (sinfo
[NL80211_STA_INFO_RX_DROP_MISC
])
2294 e
->rx_drop_misc
= nla_get_u64(sinfo
[NL80211_STA_INFO_RX_DROP_MISC
]);
2296 if (sinfo
[NL80211_STA_INFO_EXPECTED_THROUGHPUT
])
2297 e
->thr
= nla_get_u32(sinfo
[NL80211_STA_INFO_EXPECTED_THROUGHPUT
]);
2300 if (sinfo
[NL80211_STA_INFO_LLID
])
2301 e
->llid
= nla_get_u16(sinfo
[NL80211_STA_INFO_LLID
]);
2303 if (sinfo
[NL80211_STA_INFO_PLID
])
2304 e
->plid
= nla_get_u16(sinfo
[NL80211_STA_INFO_PLID
]);
2306 if (sinfo
[NL80211_STA_INFO_PLINK_STATE
])
2307 plink_state_to_str(e
->plink_state
,
2308 nla_get_u8(sinfo
[NL80211_STA_INFO_PLINK_STATE
]));
2310 if (sinfo
[NL80211_STA_INFO_LOCAL_PM
])
2311 power_mode_to_str(e
->local_ps
, sinfo
[NL80211_STA_INFO_LOCAL_PM
]);
2312 if (sinfo
[NL80211_STA_INFO_PEER_PM
])
2313 power_mode_to_str(e
->peer_ps
, sinfo
[NL80211_STA_INFO_PEER_PM
]);
2314 if (sinfo
[NL80211_STA_INFO_NONPEER_PM
])
2315 power_mode_to_str(e
->nonpeer_ps
, sinfo
[NL80211_STA_INFO_NONPEER_PM
]);
2318 if (sinfo
[NL80211_STA_INFO_STA_FLAGS
])
2320 sta_flags
= (struct nl80211_sta_flag_update
*)
2321 nla_data(sinfo
[NL80211_STA_INFO_STA_FLAGS
]);
2323 if (sta_flags
->mask
& BIT(NL80211_STA_FLAG_AUTHORIZED
) &&
2324 sta_flags
->set
& BIT(NL80211_STA_FLAG_AUTHORIZED
))
2325 e
->is_authorized
= 1;
2327 if (sta_flags
->mask
& BIT(NL80211_STA_FLAG_AUTHENTICATED
) &&
2328 sta_flags
->set
& BIT(NL80211_STA_FLAG_AUTHENTICATED
))
2329 e
->is_authenticated
= 1;
2331 if (sta_flags
->mask
& BIT(NL80211_STA_FLAG_SHORT_PREAMBLE
) &&
2332 sta_flags
->set
& BIT(NL80211_STA_FLAG_SHORT_PREAMBLE
))
2333 e
->is_preamble_short
= 1;
2335 if (sta_flags
->mask
& BIT(NL80211_STA_FLAG_WME
) &&
2336 sta_flags
->set
& BIT(NL80211_STA_FLAG_WME
))
2339 if (sta_flags
->mask
& BIT(NL80211_STA_FLAG_MFP
) &&
2340 sta_flags
->set
& BIT(NL80211_STA_FLAG_MFP
))
2343 if (sta_flags
->mask
& BIT(NL80211_STA_FLAG_TDLS_PEER
) &&
2344 sta_flags
->set
& BIT(NL80211_STA_FLAG_TDLS_PEER
))
2349 e
->noise
= 0; /* filled in by caller */
2355 static int nl80211_get_survey(const char *ifname
, char *buf
, int *len
)
2357 struct nl80211_array_buf arr
= { .buf
= buf
, .count
= 0 };
2360 rc
= nl80211_request(ifname
, NL80211_CMD_GET_SURVEY
,
2361 NLM_F_DUMP
, nl80211_get_survey_cb
, &arr
);
2363 *len
= (arr
.count
* sizeof(struct iwinfo_survey_entry
));
2370 static int nl80211_get_assoclist(const char *ifname
, char *buf
, int *len
)
2375 struct nl80211_array_buf arr
= { .buf
= buf
, .count
= 0 };
2376 struct iwinfo_assoclist_entry
*e
;
2378 if ((d
= opendir("/sys/class/net")) != NULL
)
2380 while ((de
= readdir(d
)) != NULL
)
2382 if (!strncmp(de
->d_name
, ifname
, strlen(ifname
)) &&
2383 (!de
->d_name
[strlen(ifname
)] ||
2384 !strncmp(&de
->d_name
[strlen(ifname
)], ".sta", 4)))
2386 nl80211_request(de
->d_name
, NL80211_CMD_GET_STATION
,
2387 NLM_F_DUMP
, nl80211_get_assoclist_cb
, &arr
);
2393 if (!nl80211_get_noise(ifname
, &noise
))
2394 for (i
= 0, e
= arr
.buf
; i
< arr
.count
; i
++, e
++)
2397 *len
= (arr
.count
* sizeof(struct iwinfo_assoclist_entry
));
2404 static int nl80211_get_txpwrlist_cb(struct nl_msg
*msg
, void *arg
)
2407 int ch_cur
, ch_cmp
, bands_remain
, freqs_remain
;
2409 struct nlattr
**attr
= nl80211_parse(msg
);
2410 struct nlattr
*bands
[NL80211_BAND_ATTR_MAX
+ 1];
2411 struct nlattr
*freqs
[NL80211_FREQUENCY_ATTR_MAX
+ 1];
2412 struct nlattr
*band
, *freq
;
2414 static struct nla_policy freq_policy
[NL80211_FREQUENCY_ATTR_MAX
+ 1] = {
2415 [NL80211_FREQUENCY_ATTR_FREQ
] = { .type
= NLA_U32
},
2416 [NL80211_FREQUENCY_ATTR_DISABLED
] = { .type
= NLA_FLAG
},
2417 [NL80211_FREQUENCY_ATTR_PASSIVE_SCAN
] = { .type
= NLA_FLAG
},
2418 [NL80211_FREQUENCY_ATTR_NO_IBSS
] = { .type
= NLA_FLAG
},
2419 [NL80211_FREQUENCY_ATTR_RADAR
] = { .type
= NLA_FLAG
},
2420 [NL80211_FREQUENCY_ATTR_MAX_TX_POWER
] = { .type
= NLA_U32
},
2423 ch_cur
= *dbm_max
; /* value int* is initialized with channel by caller */
2426 nla_for_each_nested(band
, attr
[NL80211_ATTR_WIPHY_BANDS
], bands_remain
)
2428 nla_parse(bands
, NL80211_BAND_ATTR_MAX
, nla_data(band
),
2429 nla_len(band
), NULL
);
2431 nla_for_each_nested(freq
, bands
[NL80211_BAND_ATTR_FREQS
], freqs_remain
)
2433 nla_parse(freqs
, NL80211_FREQUENCY_ATTR_MAX
,
2434 nla_data(freq
), nla_len(freq
), freq_policy
);
2436 ch_cmp
= nl80211_freq2channel(nla_get_u32(
2437 freqs
[NL80211_FREQUENCY_ATTR_FREQ
]));
2439 if ((!ch_cur
|| (ch_cmp
== ch_cur
)) &&
2440 freqs
[NL80211_FREQUENCY_ATTR_MAX_TX_POWER
])
2442 *dbm_max
= (int)(0.01 * nla_get_u32(
2443 freqs
[NL80211_FREQUENCY_ATTR_MAX_TX_POWER
]));
2453 static int nl80211_get_txpwrlist(const char *ifname
, char *buf
, int *len
)
2456 int dbm_max
= -1, dbm_cur
, dbm_cnt
;
2457 struct iwinfo_txpwrlist_entry entry
;
2459 if (nl80211_get_channel(ifname
, &ch_cur
))
2462 /* initialize the value pointer with channel for callback */
2465 err
= nl80211_request(ifname
, NL80211_CMD_GET_WIPHY
, 0,
2466 nl80211_get_txpwrlist_cb
, &dbm_max
);
2470 for (dbm_cur
= 0, dbm_cnt
= 0;
2472 dbm_cur
++, dbm_cnt
++)
2474 entry
.dbm
= dbm_cur
;
2475 entry
.mw
= iwinfo_dbm2mw(dbm_cur
);
2477 memcpy(&buf
[dbm_cnt
* sizeof(entry
)], &entry
, sizeof(entry
));
2480 entry
.dbm
= dbm_max
;
2481 entry
.mw
= iwinfo_dbm2mw(dbm_max
);
2483 memcpy(&buf
[dbm_cnt
* sizeof(entry
)], &entry
, sizeof(entry
));
2486 *len
= dbm_cnt
* sizeof(entry
);
2493 static void nl80211_get_scancrypto(char *spec
, struct iwinfo_crypto_entry
*c
)
2495 int wpa_version
= 0;
2496 char *p
, *q
, *proto
, *suites
;
2500 for (p
= strtok_r(spec
, "[]", &q
); p
; p
= strtok_r(NULL
, "[]", &q
)) {
2501 if (!strcmp(p
, "WEP")) {
2503 c
->auth_suites
= IWINFO_KMGMT_NONE
;
2504 c
->auth_algs
= IWINFO_AUTH_OPEN
| IWINFO_AUTH_SHARED
;
2505 c
->pair_ciphers
= IWINFO_CIPHER_WEP40
| IWINFO_CIPHER_WEP104
;
2509 proto
= strtok(p
, "-");
2510 suites
= strtok(NULL
, "]");
2512 if (!proto
|| !suites
)
2515 if (!strcmp(proto
, "WPA2") || !strcmp(proto
, "RSN"))
2517 else if (!strcmp(proto
, "WPA"))
2524 parse_wpa_suites(suites
, wpa_version
, &c
->wpa_version
, &c
->auth_suites
);
2525 parse_wpa_ciphers(suites
, &c
->pair_ciphers
);
2530 struct nl80211_scanlist
{
2531 struct iwinfo_scanlist_entry
*e
;
2536 static void nl80211_get_scanlist_ie(struct nlattr
**bss
,
2537 struct iwinfo_scanlist_entry
*e
)
2539 int ielen
= nla_len(bss
[NL80211_BSS_INFORMATION_ELEMENTS
]);
2540 unsigned char *ie
= nla_data(bss
[NL80211_BSS_INFORMATION_ELEMENTS
]);
2541 static unsigned char ms_oui
[3] = { 0x00, 0x50, 0xf2 };
2544 while (ielen
>= 2 && ielen
>= ie
[1])
2549 case 114: /* Mesh ID */
2550 if (e
->ssid
[0] == 0) {
2551 len
= min(ie
[1], IWINFO_ESSID_MAX_SIZE
);
2552 memcpy(e
->ssid
, ie
+ 2, len
);
2558 iwinfo_parse_rsn(&e
->crypto
, ie
+ 2, ie
[1],
2559 IWINFO_CIPHER_CCMP
, IWINFO_KMGMT_8021x
);
2562 case 221: /* Vendor */
2563 if (ie
[1] >= 4 && !memcmp(ie
+ 2, ms_oui
, 3) && ie
[5] == 1)
2564 iwinfo_parse_rsn(&e
->crypto
, ie
+ 6, ie
[1] - 4,
2565 IWINFO_CIPHER_TKIP
, IWINFO_KMGMT_PSK
);
2567 case 61: /* HT operation */
2569 e
->ht_chan_info
.primary_chan
= ie
[2];
2570 e
->ht_chan_info
.secondary_chan_off
= ie
[3] & 0x3;
2571 e
->ht_chan_info
.chan_width
= (ie
[4] & 0x4)>>2;
2574 case 192: /* VHT operation */
2576 e
->vht_chan_info
.chan_width
= ie
[2];
2577 e
->vht_chan_info
.center_chan_1
= ie
[3];
2578 e
->vht_chan_info
.center_chan_2
= ie
[4];
2588 static int nl80211_get_scanlist_cb(struct nl_msg
*msg
, void *arg
)
2593 struct nl80211_scanlist
*sl
= arg
;
2594 struct nlattr
**tb
= nl80211_parse(msg
);
2595 struct nlattr
*bss
[NL80211_BSS_MAX
+ 1];
2597 static struct nla_policy bss_policy
[NL80211_BSS_MAX
+ 1] = {
2598 [NL80211_BSS_TSF
] = { .type
= NLA_U64
},
2599 [NL80211_BSS_FREQUENCY
] = { .type
= NLA_U32
},
2600 [NL80211_BSS_BSSID
] = { 0 },
2601 [NL80211_BSS_BEACON_INTERVAL
] = { .type
= NLA_U16
},
2602 [NL80211_BSS_CAPABILITY
] = { .type
= NLA_U16
},
2603 [NL80211_BSS_INFORMATION_ELEMENTS
] = { 0 },
2604 [NL80211_BSS_SIGNAL_MBM
] = { .type
= NLA_U32
},
2605 [NL80211_BSS_SIGNAL_UNSPEC
] = { .type
= NLA_U8
},
2606 [NL80211_BSS_STATUS
] = { .type
= NLA_U32
},
2607 [NL80211_BSS_SEEN_MS_AGO
] = { .type
= NLA_U32
},
2608 [NL80211_BSS_BEACON_IES
] = { 0 },
2611 if (!tb
[NL80211_ATTR_BSS
] ||
2612 nla_parse_nested(bss
, NL80211_BSS_MAX
, tb
[NL80211_ATTR_BSS
],
2614 !bss
[NL80211_BSS_BSSID
])
2619 if (bss
[NL80211_BSS_CAPABILITY
])
2620 caps
= nla_get_u16(bss
[NL80211_BSS_CAPABILITY
]);
2624 memset(sl
->e
, 0, sizeof(*sl
->e
));
2625 memcpy(sl
->e
->mac
, nla_data(bss
[NL80211_BSS_BSSID
]), 6);
2628 sl
->e
->mode
= IWINFO_OPMODE_ADHOC
;
2629 else if (caps
& (1<<0))
2630 sl
->e
->mode
= IWINFO_OPMODE_MASTER
;
2632 sl
->e
->mode
= IWINFO_OPMODE_MESHPOINT
;
2635 sl
->e
->crypto
.enabled
= 1;
2637 if (bss
[NL80211_BSS_FREQUENCY
])
2639 sl
->e
->mhz
= nla_get_u32(bss
[NL80211_BSS_FREQUENCY
]);
2640 sl
->e
->band
= nl80211_freq2band(sl
->e
->mhz
);
2641 sl
->e
->channel
= nl80211_freq2channel(sl
->e
->mhz
);
2644 if (bss
[NL80211_BSS_INFORMATION_ELEMENTS
])
2645 nl80211_get_scanlist_ie(bss
, sl
->e
);
2647 if (bss
[NL80211_BSS_SIGNAL_MBM
])
2650 (uint8_t)((int32_t)nla_get_u32(bss
[NL80211_BSS_SIGNAL_MBM
]) / 100);
2652 rssi
= sl
->e
->signal
- 0x100;
2656 else if (rssi
> -40)
2659 sl
->e
->quality
= (rssi
+ 110);
2660 sl
->e
->quality_max
= 70;
2663 if (sl
->e
->crypto
.enabled
&& !sl
->e
->crypto
.wpa_version
)
2665 sl
->e
->crypto
.auth_algs
= IWINFO_AUTH_OPEN
| IWINFO_AUTH_SHARED
;
2666 sl
->e
->crypto
.pair_ciphers
= IWINFO_CIPHER_WEP40
| IWINFO_CIPHER_WEP104
;
2675 static int nl80211_get_scanlist_nl(const char *ifname
, char *buf
, int *len
)
2677 struct nl80211_scanlist sl
= { .e
= (struct iwinfo_scanlist_entry
*)buf
};
2679 if (nl80211_request(ifname
, NL80211_CMD_TRIGGER_SCAN
, 0, NULL
, NULL
))
2682 if (nl80211_wait("nl80211", "scan",
2683 NL80211_CMD_NEW_SCAN_RESULTS
, NL80211_CMD_SCAN_ABORTED
))
2686 if (nl80211_request(ifname
, NL80211_CMD_GET_SCAN
, NLM_F_DUMP
,
2687 nl80211_get_scanlist_cb
, &sl
))
2690 *len
= sl
.len
* sizeof(struct iwinfo_scanlist_entry
);
2698 static int wpasupp_ssid_decode(const char *in
, char *out
, int outlen
)
2701 (((x) >= 'a') ? ((x) - 'a' + 10) : \
2702 (((x) >= 'A') ? ((x) - 'A' + 10) : ((x) - '0')))
2708 if (len
+ 1 >= outlen
)
2718 out
[len
++] = '\n'; in
++;
2722 out
[len
++] = '\r'; in
++;
2726 out
[len
++] = '\t'; in
++;
2730 out
[len
++] = '\033'; in
++;
2734 if (isxdigit(*(in
+1)) && isxdigit(*(in
+2)))
2735 out
[len
++] = hex(*(in
+1)) * 16 + hex(*(in
+2));
2757 static int nl80211_get_scanlist_wpactl(const char *ifname
, char *buf
, int *len
)
2759 int sock
, qmax
, rssi
, tries
, count
= -1, ready
= 0;
2760 char *pos
, *line
, *bssid
, *freq
, *signal
, *flags
, *ssid
, reply
[4096];
2761 struct sockaddr_un local
= { 0 };
2762 struct iwinfo_scanlist_entry
*e
= (struct iwinfo_scanlist_entry
*)buf
;
2764 sock
= nl80211_wpactl_connect(ifname
, &local
);
2769 send(sock
, "ATTACH", 6, 0);
2770 send(sock
, "SCAN", 4, 0);
2773 * wait for scan results:
2774 * nl80211_wpactl_recv() will use a timeout of 256ms and we need to scan
2775 * 72 channels at most. We'll also receive two "OK" messages acknowledging
2776 * the "ATTACH" and "SCAN" commands and the driver might need a bit extra
2777 * time to process the results, so try 72 + 2 + 1 times.
2779 for (tries
= 0; tries
< 75; tries
++)
2781 if (nl80211_wpactl_recv(sock
, reply
, sizeof(reply
)) <= 0)
2784 /* got an event notification */
2785 if (reply
[0] == '<')
2787 /* scan results are ready */
2788 if (strstr(reply
, "CTRL-EVENT-SCAN-RESULTS"))
2790 /* send "SCAN_RESULTS" command */
2791 ready
= (send(sock
, "SCAN_RESULTS", 12, 0) == 12);
2795 /* is another unrelated event, retry */
2799 /* scanning already in progress, keep awaiting results */
2800 else if (!strcmp(reply
, "FAIL-BUSY\n"))
2805 /* another failure, abort */
2806 else if (!strncmp(reply
, "FAIL-", 5))
2812 /* receive and parse scan results if the wait above didn't time out */
2813 while (ready
&& nl80211_wpactl_recv(sock
, reply
, sizeof(reply
)) > 0)
2815 /* received an event notification, receive again */
2816 if (reply
[0] == '<')
2819 nl80211_get_quality_max(ifname
, &qmax
);
2821 for (line
= strtok_r(reply
, "\n", &pos
);
2823 line
= strtok_r(NULL
, "\n", &pos
))
2825 /* skip header line */
2832 bssid
= strtok(line
, "\t");
2833 freq
= strtok(NULL
, "\t");
2834 signal
= strtok(NULL
, "\t");
2835 flags
= strtok(NULL
, "\t");
2836 ssid
= strtok(NULL
, "\n");
2838 if (!bssid
|| !freq
|| !signal
|| !flags
)
2842 e
->mac
[0] = strtol(&bssid
[0], NULL
, 16);
2843 e
->mac
[1] = strtol(&bssid
[3], NULL
, 16);
2844 e
->mac
[2] = strtol(&bssid
[6], NULL
, 16);
2845 e
->mac
[3] = strtol(&bssid
[9], NULL
, 16);
2846 e
->mac
[4] = strtol(&bssid
[12], NULL
, 16);
2847 e
->mac
[5] = strtol(&bssid
[15], NULL
, 16);
2851 wpasupp_ssid_decode(ssid
, e
->ssid
, sizeof(e
->ssid
));
2856 if (strstr(flags
, "[MESH]"))
2857 e
->mode
= IWINFO_OPMODE_MESHPOINT
;
2858 else if (strstr(flags
, "[IBSS]"))
2859 e
->mode
= IWINFO_OPMODE_ADHOC
;
2861 e
->mode
= IWINFO_OPMODE_MASTER
;
2864 e
->mhz
= atoi(freq
);
2865 e
->band
= nl80211_freq2band(e
->mhz
);
2866 e
->channel
= nl80211_freq2channel(e
->mhz
);
2869 rssi
= atoi(signal
);
2875 /* The cfg80211 wext compat layer assumes a signal range
2876 * of -110 dBm to -40 dBm, the quality value is derived
2877 * by adding 110 to the signal level */
2880 else if (rssi
> -40)
2883 e
->quality
= (rssi
+ 110);
2891 e
->quality_max
= qmax
;
2894 nl80211_get_scancrypto(flags
, &e
->crypto
);
2900 *len
= count
* sizeof(struct iwinfo_scanlist_entry
);
2905 unlink(local
.sun_path
);
2907 return (count
>= 0) ? 0 : -1;
2910 static int nl80211_get_scanlist(const char *ifname
, char *buf
, int *len
)
2917 /* Got a radioX pseudo interface, find some interface on it or create one */
2918 if (!strncmp(ifname
, "radio", 5))
2920 /* Reuse existing interface */
2921 if ((res
= nl80211_phy2ifname(ifname
)) != NULL
)
2923 return nl80211_get_scanlist(res
, buf
, len
);
2926 /* Need to spawn a temporary iface for scanning */
2927 else if ((res
= nl80211_ifadd(ifname
)) != NULL
)
2929 rv
= nl80211_get_scanlist(res
, buf
, len
);
2935 /* WPA supplicant */
2936 if (!nl80211_get_scanlist_wpactl(ifname
, buf
, len
))
2941 /* station / ad-hoc / monitor scan */
2942 else if (!nl80211_get_mode(ifname
, &mode
) &&
2943 (mode
== IWINFO_OPMODE_ADHOC
||
2944 mode
== IWINFO_OPMODE_MASTER
||
2945 mode
== IWINFO_OPMODE_CLIENT
||
2946 mode
== IWINFO_OPMODE_MONITOR
) &&
2947 iwinfo_ifup(ifname
))
2949 return nl80211_get_scanlist_nl(ifname
, buf
, len
);
2955 /* Got a temp interface, don't create yet another one */
2956 if (!strncmp(ifname
, "tmp.", 4))
2958 if (!iwinfo_ifup(ifname
))
2961 rv
= nl80211_get_scanlist_nl(ifname
, buf
, len
);
2962 iwinfo_ifdown(ifname
);
2966 /* Spawn a new scan interface */
2969 if (!(res
= nl80211_ifadd(ifname
)))
2974 /* if we can take the new interface up, the driver supports an
2975 * additional interface and there's no need to tear down the ap */
2976 if (iwinfo_ifup(res
))
2978 rv
= nl80211_get_scanlist_nl(res
, buf
, len
);
2982 /* driver cannot create secondary interface, take down ap
2984 else if (iwinfo_ifdown(ifname
) && iwinfo_ifup(res
))
2986 rv
= nl80211_get_scanlist_nl(res
, buf
, len
);
2988 iwinfo_ifup(ifname
);
2989 nl80211_hostapd_hup(ifname
);
3002 static int nl80211_get_freqlist_cb(struct nl_msg
*msg
, void *arg
)
3004 int bands_remain
, freqs_remain
;
3006 struct nl80211_array_buf
*arr
= arg
;
3007 struct iwinfo_freqlist_entry
*e
;
3009 struct nlattr
**attr
= nl80211_parse(msg
);
3010 struct nlattr
*bands
[NL80211_BAND_ATTR_MAX
+ 1];
3011 struct nlattr
*freqs
[NL80211_FREQUENCY_ATTR_MAX
+ 1];
3012 struct nlattr
*band
, *freq
;
3017 if (attr
[NL80211_ATTR_WIPHY_BANDS
]) {
3018 nla_for_each_nested(band
, attr
[NL80211_ATTR_WIPHY_BANDS
], bands_remain
)
3020 nla_parse(bands
, NL80211_BAND_ATTR_MAX
,
3021 nla_data(band
), nla_len(band
), NULL
);
3023 if (bands
[NL80211_BAND_ATTR_FREQS
]) {
3024 nla_for_each_nested(freq
, bands
[NL80211_BAND_ATTR_FREQS
], freqs_remain
)
3026 nla_parse(freqs
, NL80211_FREQUENCY_ATTR_MAX
,
3027 nla_data(freq
), nla_len(freq
), NULL
);
3029 if (!freqs
[NL80211_FREQUENCY_ATTR_FREQ
] ||
3030 freqs
[NL80211_FREQUENCY_ATTR_DISABLED
])
3033 e
->band
= nl80211_get_band(band
->nla_type
);
3034 e
->mhz
= nla_get_u32(freqs
[NL80211_FREQUENCY_ATTR_FREQ
]);
3035 e
->channel
= nl80211_freq2channel(e
->mhz
);
3037 if (freqs
[NL80211_FREQUENCY_ATTR_NO_HT40_MINUS
])
3038 e
->flags
|= IWINFO_FREQ_NO_HT40MINUS
;
3039 if (freqs
[NL80211_FREQUENCY_ATTR_NO_HT40_PLUS
])
3040 e
->flags
|= IWINFO_FREQ_NO_HT40PLUS
;
3041 if (freqs
[NL80211_FREQUENCY_ATTR_NO_80MHZ
])
3042 e
->flags
|= IWINFO_FREQ_NO_80MHZ
;
3043 if (freqs
[NL80211_FREQUENCY_ATTR_NO_160MHZ
])
3044 e
->flags
|= IWINFO_FREQ_NO_160MHZ
;
3045 if (freqs
[NL80211_FREQUENCY_ATTR_NO_20MHZ
])
3046 e
->flags
|= IWINFO_FREQ_NO_20MHZ
;
3047 if (freqs
[NL80211_FREQUENCY_ATTR_NO_10MHZ
])
3048 e
->flags
|= IWINFO_FREQ_NO_10MHZ
;
3049 if (freqs
[NL80211_FREQUENCY_ATTR_NO_HE
])
3050 e
->flags
|= IWINFO_FREQ_NO_HE
;
3051 if (freqs
[NL80211_FREQUENCY_ATTR_NO_IR
] &&
3052 !freqs
[NL80211_FREQUENCY_ATTR_RADAR
])
3053 e
->flags
|= IWINFO_FREQ_NO_IR
;
3054 if (freqs
[NL80211_FREQUENCY_ATTR_INDOOR_ONLY
])
3055 e
->flags
|= IWINFO_FREQ_INDOOR_ONLY
;
3057 /* keep backwards compatibility */
3058 e
->restricted
= (e
->flags
& IWINFO_FREQ_NO_IR
) ? 1 : 0;
3070 static int nl80211_get_freqlist(const char *ifname
, char *buf
, int *len
)
3072 struct nl80211_msg_conveyor
*cv
;
3073 struct nl80211_array_buf arr
= { .buf
= buf
, .count
= 0 };
3074 uint32_t features
= nl80211_get_protocol_features(ifname
);
3077 flags
= features
& NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP
? NLM_F_DUMP
: 0;
3078 cv
= nl80211_msg(ifname
, NL80211_CMD_GET_WIPHY
, flags
);
3082 NLA_PUT_FLAG(cv
->msg
, NL80211_ATTR_SPLIT_WIPHY_DUMP
);
3083 if (nl80211_send(cv
, nl80211_get_freqlist_cb
, &arr
))
3086 *len
= arr
.count
* sizeof(struct iwinfo_freqlist_entry
);
3096 static int nl80211_get_country_cb(struct nl_msg
*msg
, void *arg
)
3099 struct nlattr
**attr
= nl80211_parse(msg
);
3101 if (attr
[NL80211_ATTR_REG_ALPHA2
])
3102 memcpy(buf
, nla_data(attr
[NL80211_ATTR_REG_ALPHA2
]), 2);
3109 static int nl80211_get_country(const char *ifname
, char *buf
)
3111 if (nl80211_request(ifname
, NL80211_CMD_GET_REG
, 0,
3112 nl80211_get_country_cb
, buf
))
3118 static int nl80211_get_countrylist(const char *ifname
, char *buf
, int *len
)
3121 struct iwinfo_country_entry
*e
= (struct iwinfo_country_entry
*)buf
;
3122 const struct iwinfo_iso3166_label
*l
;
3124 for (l
= IWINFO_ISO3166_NAMES
, count
= 0; l
->iso3166
; l
++, e
++, count
++)
3126 e
->iso3166
= l
->iso3166
;
3127 e
->ccode
[0] = (l
->iso3166
/ 256);
3128 e
->ccode
[1] = (l
->iso3166
% 256);
3132 *len
= (count
* sizeof(struct iwinfo_country_entry
));
3137 struct nl80211_modes
3147 uint16_t he_phy_cap
[6];
3150 static void nl80211_eval_modelist(struct nl80211_modes
*m
)
3152 /* Treat any nonzero capability as 11n */
3155 m
->hw
|= IWINFO_80211_N
;
3156 m
->ht
|= IWINFO_HTMODE_HT20
;
3158 if (m
->nl_ht
& (1 << 1))
3159 m
->ht
|= IWINFO_HTMODE_HT40
;
3162 if (m
->he_phy_cap
[0] != 0) {
3163 m
->hw
|= IWINFO_80211_AX
;
3164 m
->ht
|= IWINFO_HTMODE_HE20
;
3166 if (m
->he_phy_cap
[0] & BIT(9))
3167 m
->ht
|= IWINFO_HTMODE_HE40
;
3168 if (m
->he_phy_cap
[0] & BIT(10))
3169 m
->ht
|= IWINFO_HTMODE_HE40
| IWINFO_HTMODE_HE80
;
3170 if (m
->he_phy_cap
[0] & BIT(11))
3171 m
->ht
|= IWINFO_HTMODE_HE160
;
3172 if (m
->he_phy_cap
[0] & BIT(12))
3173 m
->ht
|= IWINFO_HTMODE_HE160
| IWINFO_HTMODE_HE80_80
;
3176 if (m
->bands
& IWINFO_BAND_24
)
3178 m
->hw
|= IWINFO_80211_B
;
3179 m
->hw
|= IWINFO_80211_G
;
3182 if (m
->bands
& IWINFO_BAND_5
)
3184 /* Treat any nonzero capability as 11ac */
3187 m
->hw
|= IWINFO_80211_AC
;
3188 m
->ht
|= IWINFO_HTMODE_VHT20
| IWINFO_HTMODE_VHT40
| IWINFO_HTMODE_VHT80
;
3190 switch ((m
->nl_vht
>> 2) & 3)
3193 m
->ht
|= IWINFO_HTMODE_VHT80_80
;
3197 m
->ht
|= IWINFO_HTMODE_VHT160
;
3202 m
->hw
|= IWINFO_80211_A
;
3206 if (m
->bands
& IWINFO_BAND_60
)
3208 m
->hw
|= IWINFO_80211_AD
;
3213 static int nl80211_get_modelist_cb(struct nl_msg
*msg
, void *arg
)
3215 struct nl80211_modes
*m
= arg
;
3217 struct nlattr
**attr
= nl80211_parse(msg
);
3218 struct nlattr
*bands
[NL80211_BAND_ATTR_MAX
+ 1];
3219 struct nlattr
*band
;
3221 if (attr
[NL80211_ATTR_WIPHY_BANDS
])
3223 nla_for_each_nested(band
, attr
[NL80211_ATTR_WIPHY_BANDS
], bands_remain
)
3225 m
->bands
|= nl80211_get_band(band
->nla_type
);
3227 nla_parse(bands
, NL80211_BAND_ATTR_MAX
,
3228 nla_data(band
), nla_len(band
), NULL
);
3230 if (bands
[NL80211_BAND_ATTR_HT_CAPA
])
3231 m
->nl_ht
= nla_get_u16(bands
[NL80211_BAND_ATTR_HT_CAPA
]);
3233 if (bands
[NL80211_BAND_ATTR_VHT_CAPA
])
3234 m
->nl_vht
= nla_get_u32(bands
[NL80211_BAND_ATTR_VHT_CAPA
]);
3236 if (bands
[NL80211_BAND_ATTR_IFTYPE_DATA
]) {
3237 struct nlattr
*tb
[NL80211_BAND_IFTYPE_ATTR_MAX
+ 1];
3238 struct nlattr
*nl_iftype
;
3242 nla_for_each_nested(nl_iftype
, bands
[NL80211_BAND_ATTR_IFTYPE_DATA
], rem_band
) {
3243 nla_parse(tb
, NL80211_BAND_IFTYPE_ATTR_MAX
,
3244 nla_data(nl_iftype
), nla_len(nl_iftype
), NULL
);
3245 if (tb
[NL80211_BAND_IFTYPE_ATTR_HE_CAP_PHY
]) {
3246 len
= nla_len(tb
[NL80211_BAND_IFTYPE_ATTR_HE_CAP_PHY
]);
3248 if (len
> sizeof(m
->he_phy_cap
) - 1)
3249 len
= sizeof(m
->he_phy_cap
) - 1;
3250 memcpy(&((__u8
*)m
->he_phy_cap
)[1],
3251 nla_data(tb
[NL80211_BAND_IFTYPE_ATTR_HE_CAP_PHY
]),
3264 static int nl80211_get_hwmodelist(const char *ifname
, int *buf
)
3266 struct nl80211_msg_conveyor
*cv
;
3267 struct nl80211_modes m
= {};
3268 uint32_t features
= nl80211_get_protocol_features(ifname
);
3271 flags
= features
& NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP
? NLM_F_DUMP
: 0;
3272 cv
= nl80211_msg(ifname
, NL80211_CMD_GET_WIPHY
, flags
);
3276 NLA_PUT_FLAG(cv
->msg
, NL80211_ATTR_SPLIT_WIPHY_DUMP
);
3277 if (nl80211_send(cv
, nl80211_get_modelist_cb
, &m
))
3278 goto nla_put_failure
;
3280 nl80211_eval_modelist(&m
);
3297 static int nl80211_get_htmode_cb(struct nl_msg
*msg
, void *arg
)
3299 struct nlattr
**tb
= nl80211_parse(msg
);
3301 struct chan_info
*chn
= arg
;
3303 if ((cur
= tb
[NL80211_ATTR_CHANNEL_WIDTH
]))
3304 chn
->width
= nla_get_u32(cur
);
3306 if ((cur
= tb
[NL80211_ATTR_BSS_HT_OPMODE
]))
3307 chn
->mode
= nla_get_u32(cur
);
3312 static int nl80211_get_htmode(const char *ifname
, int *buf
)
3314 struct chan_info chn
= { 0 };
3315 char *res
, b
[2] = { 0 };
3319 res
= nl80211_phy2ifname(ifname
);
3322 err
= nl80211_request(res
? res
: ifname
,
3323 NL80211_CMD_GET_INTERFACE
, 0,
3324 nl80211_get_htmode_cb
, &chn
);
3328 if (nl80211_hostapd_query(res
? res
: ifname
, "ieee80211ax", b
, sizeof(b
)))
3330 else if (nl80211_wpactl_query(res
? res
: ifname
, "wifi_generation", b
, sizeof(b
)))
3333 switch (chn
.width
) {
3334 case NL80211_CHAN_WIDTH_20
:
3336 *buf
= IWINFO_HTMODE_HE20
;
3337 else if (chn
.mode
== -1)
3338 *buf
= IWINFO_HTMODE_VHT20
;
3340 *buf
= IWINFO_HTMODE_HT20
;
3342 case NL80211_CHAN_WIDTH_40
:
3344 *buf
= IWINFO_HTMODE_HE40
;
3345 else if (chn
.mode
== -1)
3346 *buf
= IWINFO_HTMODE_VHT40
;
3348 *buf
= IWINFO_HTMODE_HT40
;
3350 case NL80211_CHAN_WIDTH_80
:
3352 *buf
= IWINFO_HTMODE_HE80
;
3354 *buf
= IWINFO_HTMODE_VHT80
;
3356 case NL80211_CHAN_WIDTH_80P80
:
3358 *buf
= IWINFO_HTMODE_HE80_80
;
3360 *buf
= IWINFO_HTMODE_VHT80_80
;
3362 case NL80211_CHAN_WIDTH_160
:
3364 *buf
= IWINFO_HTMODE_HE160
;
3366 *buf
= IWINFO_HTMODE_VHT160
;
3368 case NL80211_CHAN_WIDTH_5
:
3369 case NL80211_CHAN_WIDTH_10
:
3370 case NL80211_CHAN_WIDTH_20_NOHT
:
3371 *buf
= IWINFO_HTMODE_NOHT
;
3380 static int nl80211_get_htmodelist(const char *ifname
, int *buf
)
3382 struct nl80211_msg_conveyor
*cv
;
3383 struct nl80211_modes m
= {};
3384 uint32_t features
= nl80211_get_protocol_features(ifname
);
3387 flags
= features
& NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP
? NLM_F_DUMP
: 0;
3388 cv
= nl80211_msg(ifname
, NL80211_CMD_GET_WIPHY
, flags
);
3392 NLA_PUT_FLAG(cv
->msg
, NL80211_ATTR_SPLIT_WIPHY_DUMP
);
3393 if (nl80211_send(cv
, nl80211_get_modelist_cb
, &m
))
3394 goto nla_put_failure
;
3396 nl80211_eval_modelist(&m
);
3409 static int nl80211_get_ifcomb_cb(struct nl_msg
*msg
, void *arg
)
3411 struct nlattr
**attr
= nl80211_parse(msg
);
3412 struct nlattr
*comb
;
3414 int comb_rem
, limit_rem
, mode_rem
;
3417 if (!attr
[NL80211_ATTR_INTERFACE_COMBINATIONS
])
3420 nla_for_each_nested(comb
, attr
[NL80211_ATTR_INTERFACE_COMBINATIONS
], comb_rem
)
3422 static struct nla_policy iface_combination_policy
[NUM_NL80211_IFACE_COMB
] = {
3423 [NL80211_IFACE_COMB_LIMITS
] = { .type
= NLA_NESTED
},
3424 [NL80211_IFACE_COMB_MAXNUM
] = { .type
= NLA_U32
},
3426 struct nlattr
*tb_comb
[NUM_NL80211_IFACE_COMB
+1];
3427 static struct nla_policy iface_limit_policy
[NUM_NL80211_IFACE_LIMIT
] = {
3428 [NL80211_IFACE_LIMIT_TYPES
] = { .type
= NLA_NESTED
},
3429 [NL80211_IFACE_LIMIT_MAX
] = { .type
= NLA_U32
},
3431 struct nlattr
*tb_limit
[NUM_NL80211_IFACE_LIMIT
+1];
3432 struct nlattr
*limit
;
3434 nla_parse_nested(tb_comb
, NUM_NL80211_IFACE_COMB
, comb
, iface_combination_policy
);
3436 if (!tb_comb
[NL80211_IFACE_COMB_LIMITS
])
3439 nla_for_each_nested(limit
, tb_comb
[NL80211_IFACE_COMB_LIMITS
], limit_rem
)
3441 struct nlattr
*mode
;
3443 nla_parse_nested(tb_limit
, NUM_NL80211_IFACE_LIMIT
, limit
, iface_limit_policy
);
3445 if (!tb_limit
[NL80211_IFACE_LIMIT_TYPES
] ||
3446 !tb_limit
[NL80211_IFACE_LIMIT_MAX
])
3449 if (nla_get_u32(tb_limit
[NL80211_IFACE_LIMIT_MAX
]) < 2)
3452 nla_for_each_nested(mode
, tb_limit
[NL80211_IFACE_LIMIT_TYPES
], mode_rem
) {
3453 if (nla_type(mode
) == NL80211_IFTYPE_AP
)
3462 static int nl80211_get_mbssid_support(const char *ifname
, int *buf
)
3464 if (nl80211_request(ifname
, NL80211_CMD_GET_WIPHY
, 0,
3465 nl80211_get_ifcomb_cb
, buf
))
3471 static int nl80211_hardware_id_from_fdt(struct iwinfo_hardware_id
*id
, const char *ifname
)
3473 char *phy
, path
[PATH_MAX
];
3475 /* Try to determine the phy name from the given interface */
3476 phy
= nl80211_ifname2phy(ifname
);
3478 snprintf(path
, sizeof(path
), "/sys/class/%s/%s/device/of_node/compatible",
3479 phy
? "ieee80211" : "net", phy
? phy
: ifname
);
3481 if (nl80211_readstr(path
, id
->compatible
, sizeof(id
->compatible
)) <= 0)
3488 static int nl80211_get_hardware_id(const char *ifname
, char *buf
)
3490 struct iwinfo_hardware_id
*id
= (struct iwinfo_hardware_id
*)buf
;
3491 char *phy
, num
[8], path
[PATH_MAX
];
3494 struct { const char *path
; uint16_t *dest
; } lookup
[] = {
3495 { "vendor", &id
->vendor_id
},
3496 { "device", &id
->device_id
},
3497 { "subsystem_vendor", &id
->subsystem_vendor_id
},
3498 { "subsystem_device", &id
->subsystem_device_id
},
3499 { "../idVendor", &id
->subsystem_vendor_id
},
3500 { "../idProduct", &id
->subsystem_device_id
}
3503 memset(id
, 0, sizeof(*id
));
3505 /* Try to determine the phy name from the given interface */
3506 phy
= nl80211_ifname2phy(ifname
);
3508 for (i
= 0; i
< ARRAY_SIZE(lookup
); i
++)
3510 snprintf(path
, sizeof(path
), "/sys/class/%s/%s/device/%s",
3511 phy
? "ieee80211" : "net",
3512 phy
? phy
: ifname
, lookup
[i
].path
);
3514 if (nl80211_readstr(path
, num
, sizeof(num
)) > 0)
3515 *lookup
[i
].dest
= strtoul(num
, NULL
, 16);
3518 /* Failed to obtain hardware PCI/USB IDs... */
3519 if (id
->vendor_id
== 0 && id
->device_id
== 0 &&
3520 id
->subsystem_vendor_id
== 0 && id
->subsystem_device_id
== 0)
3521 /* ... first fallback to FDT ... */
3522 if (nl80211_hardware_id_from_fdt(id
, ifname
) == -1)
3523 /* ... then board config */
3524 return iwinfo_hardware_id_from_mtd(id
);
3529 static const struct iwinfo_hardware_entry
*
3530 nl80211_get_hardware_entry(const char *ifname
)
3532 struct iwinfo_hardware_id id
;
3534 if (nl80211_get_hardware_id(ifname
, (char *)&id
))
3537 return iwinfo_hardware(&id
);
3540 static int nl80211_get_hardware_name(const char *ifname
, char *buf
)
3542 const struct iwinfo_hardware_entry
*hw
;
3544 if (!(hw
= nl80211_get_hardware_entry(ifname
)))
3545 sprintf(buf
, "Generic MAC80211");
3547 sprintf(buf
, "%s %s", hw
->vendor_name
, hw
->device_name
);
3552 static int nl80211_get_txpower_offset(const char *ifname
, int *buf
)
3554 const struct iwinfo_hardware_entry
*hw
;
3556 if (!(hw
= nl80211_get_hardware_entry(ifname
)))
3559 *buf
= hw
->txpower_offset
;
3563 static int nl80211_get_frequency_offset(const char *ifname
, int *buf
)
3565 const struct iwinfo_hardware_entry
*hw
;
3567 if (!(hw
= nl80211_get_hardware_entry(ifname
)))
3570 *buf
= hw
->frequency_offset
;
3574 static int nl80211_lookup_phyname(const char *section
, char *buf
)
3579 if (!strncmp(section
, "path=", 5))
3580 idx
= nl80211_phy_idx_from_path(section
+ 5);
3581 else if (!strncmp(section
, "macaddr=", 8))
3582 idx
= nl80211_phy_idx_from_macaddr(section
+ 8);
3584 idx
= nl80211_phy_idx_from_uci(section
);
3589 name
= nl80211_phyidx2name(idx
);
3597 static int nl80211_phy_path(const char *phyname
, const char **path
)
3599 if (strchr(phyname
, '/'))
3602 *path
= nl80211_phy_path_str(phyname
);
3609 const struct iwinfo_ops nl80211_ops
= {
3611 .probe
= nl80211_probe
,
3612 .channel
= nl80211_get_channel
,
3613 .center_chan1
= nl80211_get_center_chan1
,
3614 .center_chan2
= nl80211_get_center_chan2
,
3615 .frequency
= nl80211_get_frequency
,
3616 .frequency_offset
= nl80211_get_frequency_offset
,
3617 .txpower
= nl80211_get_txpower
,
3618 .txpower_offset
= nl80211_get_txpower_offset
,
3619 .bitrate
= nl80211_get_bitrate
,
3620 .signal
= nl80211_get_signal
,
3621 .noise
= nl80211_get_noise
,
3622 .quality
= nl80211_get_quality
,
3623 .quality_max
= nl80211_get_quality_max
,
3624 .mbssid_support
= nl80211_get_mbssid_support
,
3625 .hwmodelist
= nl80211_get_hwmodelist
,
3626 .htmodelist
= nl80211_get_htmodelist
,
3627 .htmode
= nl80211_get_htmode
,
3628 .mode
= nl80211_get_mode
,
3629 .ssid
= nl80211_get_ssid
,
3630 .bssid
= nl80211_get_bssid
,
3631 .country
= nl80211_get_country
,
3632 .hardware_id
= nl80211_get_hardware_id
,
3633 .hardware_name
= nl80211_get_hardware_name
,
3634 .encryption
= nl80211_get_encryption
,
3635 .phyname
= nl80211_get_phyname
,
3636 .assoclist
= nl80211_get_assoclist
,
3637 .txpwrlist
= nl80211_get_txpwrlist
,
3638 .scanlist
= nl80211_get_scanlist
,
3639 .freqlist
= nl80211_get_freqlist
,
3640 .countrylist
= nl80211_get_countrylist
,
3641 .survey
= nl80211_get_survey
,
3642 .lookup_phy
= nl80211_lookup_phyname
,
3643 .phy_path
= nl80211_phy_path
,
3644 .close
= nl80211_close