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 int nl80211_phyname_cb(struct nl_msg
*msg
, void *arg
)
748 struct nlattr
**attr
= nl80211_parse(msg
);
750 if (attr
[NL80211_ATTR_WIPHY_NAME
])
751 memcpy(buf
, nla_data(attr
[NL80211_ATTR_WIPHY_NAME
]),
752 nla_len(attr
[NL80211_ATTR_WIPHY_NAME
]));
759 static char * nl80211_ifname2phy(const char *ifname
)
761 static char phy
[32] = { 0 };
763 memset(phy
, 0, sizeof(phy
));
765 nl80211_request(ifname
, NL80211_CMD_GET_WIPHY
, 0,
766 nl80211_phyname_cb
, phy
);
768 return phy
[0] ? phy
: NULL
;
771 static char * nl80211_phyidx2name(unsigned int idx
)
773 struct nl80211_msg_conveyor
*cv
;
774 static char phy
[32] = { 0 };
776 if (nl80211_init() < 0)
779 cv
= nl80211_new(nls
->nl80211
, NL80211_CMD_GET_WIPHY
, 0);
783 NLA_PUT_U32(cv
->msg
, NL80211_ATTR_WIPHY
, idx
);
785 memset(phy
, 0, sizeof(phy
));
786 nl80211_send(cv
, nl80211_phyname_cb
, phy
);
788 return phy
[0] ? phy
: NULL
;
794 static char * nl80211_phy2ifname(const char *ifname
)
796 int ifidx
= -1, cifidx
= -1, phyidx
= -1;
798 static char nif
[IFNAMSIZ
] = { 0 };
803 /* Only accept phy name of the form phy%d or radio%d */
807 phyidx
= nl80211_phy_idx_from_phy(ifname
);
809 phyidx
= nl80211_phy_idx_from_uci(ifname
);;
813 memset(nif
, 0, sizeof(nif
));
817 if ((d
= opendir("/sys/class/net")) != NULL
)
819 while ((e
= readdir(d
)) != NULL
)
821 snprintf(buffer
, sizeof(buffer
),
822 "/sys/class/net/%s/phy80211/index", e
->d_name
);
824 if (nl80211_readint(buffer
) == phyidx
)
826 snprintf(buffer
, sizeof(buffer
),
827 "/sys/class/net/%s/ifindex", e
->d_name
);
829 if ((cifidx
= nl80211_readint(buffer
)) >= 0 &&
830 ((ifidx
< 0) || (cifidx
< ifidx
)))
833 strncpy(nif
, e
->d_name
, sizeof(nif
) - 1);
842 return nif
[0] ? nif
: NULL
;
845 static int nl80211_get_mode_cb(struct nl_msg
*msg
, void *arg
)
848 struct nlattr
**tb
= nl80211_parse(msg
);
849 const int ifmodes
[NL80211_IFTYPE_MAX
+ 1] = {
850 IWINFO_OPMODE_UNKNOWN
, /* unspecified */
851 IWINFO_OPMODE_ADHOC
, /* IBSS */
852 IWINFO_OPMODE_CLIENT
, /* managed */
853 IWINFO_OPMODE_MASTER
, /* AP */
854 IWINFO_OPMODE_AP_VLAN
, /* AP/VLAN */
855 IWINFO_OPMODE_WDS
, /* WDS */
856 IWINFO_OPMODE_MONITOR
, /* monitor */
857 IWINFO_OPMODE_MESHPOINT
, /* mesh point */
858 IWINFO_OPMODE_P2P_CLIENT
, /* P2P-client */
859 IWINFO_OPMODE_P2P_GO
, /* P2P-GO */
862 if (tb
[NL80211_ATTR_IFTYPE
])
863 *mode
= ifmodes
[nla_get_u32(tb
[NL80211_ATTR_IFTYPE
])];
869 static int nl80211_get_mode(const char *ifname
, int *buf
)
873 *buf
= IWINFO_OPMODE_UNKNOWN
;
875 res
= nl80211_phy2ifname(ifname
);
877 nl80211_request(res
? res
: ifname
, NL80211_CMD_GET_INTERFACE
, 0,
878 nl80211_get_mode_cb
, buf
);
880 return (*buf
== IWINFO_OPMODE_UNKNOWN
) ? -1 : 0;
883 static int __nl80211_hostapd_query(const char *ifname
, ...)
886 char *phy
, *search
, *dest
, *key
, *val
, buf
[128];
887 int len
, mode
, found
= 0, match
= 1;
890 if (nl80211_get_mode(ifname
, &mode
))
893 if (mode
!= IWINFO_OPMODE_MASTER
&& mode
!= IWINFO_OPMODE_AP_VLAN
)
896 phy
= nl80211_ifname2phy(ifname
);
901 snprintf(buf
, sizeof(buf
), "/var/run/hostapd-%s.conf", phy
);
902 fp
= fopen(buf
, "r");
907 va_start(ap
, ifname
);
909 /* clear all destination buffers */
912 while ((search
= va_arg(ap_cur
, char *)) != NULL
)
914 dest
= va_arg(ap_cur
, char *);
915 len
= va_arg(ap_cur
, int);
917 memset(dest
, 0, len
);
922 /* iterate applicable lines and copy found values into dest buffers */
923 while (fgets(buf
, sizeof(buf
), fp
))
925 key
= strtok(buf
, " =\t\n");
926 val
= strtok(NULL
, "\n");
928 if (!key
|| !val
|| !*key
|| *key
== '#')
931 if (!strcmp(key
, "interface") || !strcmp(key
, "bss"))
932 match
= !strcmp(ifname
, val
);
939 while ((search
= va_arg(ap_cur
, char *)) != NULL
)
941 dest
= va_arg(ap_cur
, char *);
942 len
= va_arg(ap_cur
, int);
944 if (!strcmp(search
, key
))
946 strncpy(dest
, val
, len
- 1);
962 #define nl80211_hostapd_query(ifname, ...) \
963 __nl80211_hostapd_query(ifname, ##__VA_ARGS__, NULL)
966 static inline int nl80211_wpactl_recv(int sock
, char *buf
, int blen
)
969 struct timeval tv
= { 0, 256000 };
974 memset(buf
, 0, blen
);
976 if (select(sock
+ 1, &rfds
, NULL
, NULL
, &tv
) < 0)
979 if (!FD_ISSET(sock
, &rfds
))
982 return recv(sock
, buf
, blen
- 1, 0);
985 static int nl80211_wpactl_connect(const char *ifname
, struct sockaddr_un
*local
)
987 struct sockaddr_un remote
= { 0 };
988 size_t remote_length
, local_length
;
990 int sock
= socket(PF_UNIX
, SOCK_DGRAM
, 0);
994 remote
.sun_family
= AF_UNIX
;
995 remote_length
= sizeof(remote
.sun_family
) +
996 sprintf(remote
.sun_path
, "/var/run/wpa_supplicant/%s", ifname
);
998 /* Set client socket file permissions so that bind() creates the client
999 * socket with these permissions and there is no need to try to change
1000 * them with chmod() after bind() which would have potential issues with
1001 * race conditions. These permissions are needed to make sure the server
1002 * side (wpa_supplicant or hostapd) can reply to the control interface
1005 * The lchown() calls below after bind() are also part of the needed
1006 * operations to allow the response to go through. Those are using the
1007 * no-deference-symlinks version to avoid races. */
1008 fchmod(sock
, S_IRUSR
| S_IWUSR
| S_IRGRP
| S_IWGRP
);
1010 if (fcntl(sock
, F_SETFD
, fcntl(sock
, F_GETFD
) | FD_CLOEXEC
) < 0)
1016 if (connect(sock
, (struct sockaddr
*)&remote
, remote_length
))
1022 local
->sun_family
= AF_UNIX
;
1023 local_length
= sizeof(local
->sun_family
) +
1024 sprintf(local
->sun_path
, "/var/run/iwinfo-%s-%d", ifname
, getpid());
1026 if (bind(sock
, (struct sockaddr
*)local
, local_length
) < 0)
1032 /* Set group even if we do not have privileges to change owner */
1033 lchown(local
->sun_path
, -1, 101);
1034 lchown(local
->sun_path
, 101, 101);
1039 static int __nl80211_wpactl_query(const char *ifname
, ...)
1042 struct sockaddr_un local
= { 0 };
1043 int len
, mode
, found
= 0, sock
= -1;
1044 char *search
, *dest
, *key
, *val
, *line
, *pos
, buf
[512];
1046 if (nl80211_get_mode(ifname
, &mode
))
1049 if (mode
!= IWINFO_OPMODE_CLIENT
&&
1050 mode
!= IWINFO_OPMODE_ADHOC
&&
1051 mode
!= IWINFO_OPMODE_MESHPOINT
)
1054 sock
= nl80211_wpactl_connect(ifname
, &local
);
1059 va_start(ap
, ifname
);
1061 /* clear all destination buffers */
1062 va_copy(ap_cur
, ap
);
1064 while ((search
= va_arg(ap_cur
, char *)) != NULL
)
1066 dest
= va_arg(ap_cur
, char *);
1067 len
= va_arg(ap_cur
, int);
1069 memset(dest
, 0, len
);
1074 send(sock
, "STATUS", 6, 0);
1078 if (nl80211_wpactl_recv(sock
, buf
, sizeof(buf
)) <= 0)
1084 for (line
= strtok_r(buf
, "\n", &pos
);
1086 line
= strtok_r(NULL
, "\n", &pos
))
1088 key
= strtok(line
, "=");
1089 val
= strtok(NULL
, "\n");
1094 va_copy(ap_cur
, ap
);
1096 while ((search
= va_arg(ap_cur
, char *)) != NULL
)
1098 dest
= va_arg(ap_cur
, char *);
1099 len
= va_arg(ap_cur
, int);
1101 if (!strcmp(search
, key
))
1103 strncpy(dest
, val
, len
- 1);
1118 unlink(local
.sun_path
);
1123 #define nl80211_wpactl_query(ifname, ...) \
1124 __nl80211_wpactl_query(ifname, ##__VA_ARGS__, NULL)
1127 static char * nl80211_ifadd(const char *ifname
)
1129 char path
[PATH_MAX
];
1130 static char nif
[IFNAMSIZ
] = { 0 };
1131 struct nl80211_msg_conveyor
*req
;
1134 req
= nl80211_msg(ifname
, NL80211_CMD_NEW_INTERFACE
, 0);
1137 snprintf(nif
, sizeof(nif
), "tmp.%s", ifname
);
1139 NLA_PUT_STRING(req
->msg
, NL80211_ATTR_IFNAME
, nif
);
1140 NLA_PUT_U32(req
->msg
, NL80211_ATTR_IFTYPE
, NL80211_IFTYPE_STATION
);
1142 nl80211_send(req
, NULL
, NULL
);
1144 snprintf(path
, sizeof(path
) - 1,
1145 "/proc/sys/net/ipv6/conf/%s/disable_ipv6", nif
);
1147 if ((sysfs
= fopen(path
, "w")) != NULL
)
1149 fwrite("0\n", 1, 2, sysfs
);
1162 static void nl80211_ifdel(const char *ifname
)
1164 struct nl80211_msg_conveyor
*req
;
1166 req
= nl80211_msg(ifname
, NL80211_CMD_DEL_INTERFACE
, 0);
1169 NLA_PUT_STRING(req
->msg
, NL80211_ATTR_IFNAME
, ifname
);
1171 nl80211_send(req
, NULL
, NULL
);
1179 static void nl80211_hostapd_hup(const char *ifname
)
1183 char *phy
= nl80211_ifname2phy(ifname
);
1187 snprintf(buf
, sizeof(buf
), "/var/run/wifi-%s.pid", phy
);
1188 if ((fd
= open(buf
, O_RDONLY
)) >= 0)
1190 if (read(fd
, buf
, sizeof(buf
)) > 0)
1202 static int nl80211_probe(const char *ifname
)
1204 return !!nl80211_ifname2phy(ifname
);
1207 struct nl80211_ssid_bssid
{
1208 unsigned char *ssid
;
1209 unsigned char bssid
[7];
1212 static int nl80211_get_macaddr_cb(struct nl_msg
*msg
, void *arg
)
1214 struct nl80211_ssid_bssid
*sb
= arg
;
1215 struct nlattr
**tb
= nl80211_parse(msg
);
1217 if (tb
[NL80211_ATTR_MAC
]) {
1219 memcpy(sb
->bssid
+ 1, nla_data(tb
[NL80211_ATTR_MAC
]),
1220 sizeof(sb
->bssid
) - 1);
1226 static int nl80211_get_ssid_bssid_cb(struct nl_msg
*msg
, void *arg
)
1230 struct nl80211_ssid_bssid
*sb
= arg
;
1231 struct nlattr
**tb
= nl80211_parse(msg
);
1232 struct nlattr
*bss
[NL80211_BSS_MAX
+ 1];
1234 static struct nla_policy bss_policy
[NL80211_BSS_MAX
+ 1] = {
1235 [NL80211_BSS_INFORMATION_ELEMENTS
] = { 0 },
1236 [NL80211_BSS_STATUS
] = { .type
= NLA_U32
},
1239 if (!tb
[NL80211_ATTR_BSS
] ||
1240 nla_parse_nested(bss
, NL80211_BSS_MAX
, tb
[NL80211_ATTR_BSS
],
1242 !bss
[NL80211_BSS_BSSID
] ||
1243 !bss
[NL80211_BSS_STATUS
] ||
1244 !bss
[NL80211_BSS_INFORMATION_ELEMENTS
])
1249 switch (nla_get_u32(bss
[NL80211_BSS_STATUS
]))
1251 case NL80211_BSS_STATUS_ASSOCIATED
:
1252 case NL80211_BSS_STATUS_AUTHENTICATED
:
1253 case NL80211_BSS_STATUS_IBSS_JOINED
:
1257 ie
= nla_data(bss
[NL80211_BSS_INFORMATION_ELEMENTS
]);
1258 ielen
= nla_len(bss
[NL80211_BSS_INFORMATION_ELEMENTS
]);
1260 while (ielen
>= 2 && ielen
>= ie
[1])
1264 memcpy(sb
->ssid
, ie
+ 2, min(ie
[1], IWINFO_ESSID_MAX_SIZE
));
1275 memcpy(sb
->bssid
+ 1, nla_data(bss
[NL80211_BSS_BSSID
]), 6);
1284 static int nl80211_get_ssid(const char *ifname
, char *buf
)
1287 struct nl80211_ssid_bssid sb
= { .ssid
= (unsigned char *)buf
};
1289 /* try to find ssid from scan dump results */
1290 res
= nl80211_phy2ifname(ifname
);
1293 nl80211_request(res
? res
: ifname
, NL80211_CMD_GET_SCAN
, NLM_F_DUMP
,
1294 nl80211_get_ssid_bssid_cb
, &sb
);
1296 /* failed, try to find from hostapd info */
1297 if (sb
.ssid
[0] == 0)
1298 nl80211_hostapd_query(ifname
, "ssid", sb
.ssid
,
1299 IWINFO_ESSID_MAX_SIZE
+ 1);
1301 /* failed, try to obtain Mesh ID */
1302 if (sb
.ssid
[0] == 0)
1303 iwinfo_ubus_query(res
? res
: ifname
, "mesh_id",
1304 buf
, IWINFO_ESSID_MAX_SIZE
+ 1);
1306 return (sb
.ssid
[0] == 0) ? -1 : 0;
1309 static int nl80211_get_bssid(const char *ifname
, char *buf
)
1311 char *res
, bssid
[sizeof("FF:FF:FF:FF:FF:FF\0")];
1312 struct nl80211_ssid_bssid sb
= { };
1314 res
= nl80211_phy2ifname(ifname
);
1316 /* try to obtain mac address via NL80211_CMD_GET_INTERFACE */
1317 nl80211_request(res
? res
: ifname
, NL80211_CMD_GET_INTERFACE
, 0,
1318 nl80211_get_macaddr_cb
, &sb
);
1320 /* failed, try to find bssid from scan dump results */
1321 if (sb
.bssid
[0] == 0)
1322 nl80211_request(res
? res
: ifname
,
1323 NL80211_CMD_GET_SCAN
, NLM_F_DUMP
,
1324 nl80211_get_ssid_bssid_cb
, &sb
);
1326 /* failed, try to find mac from hostapd info */
1327 if ((sb
.bssid
[0] == 0) &&
1328 nl80211_hostapd_query(ifname
, "bssid", bssid
, sizeof(bssid
)))
1331 sb
.bssid
[1] = strtol(&bssid
[0], NULL
, 16);
1332 sb
.bssid
[2] = strtol(&bssid
[3], NULL
, 16);
1333 sb
.bssid
[3] = strtol(&bssid
[6], NULL
, 16);
1334 sb
.bssid
[4] = strtol(&bssid
[9], NULL
, 16);
1335 sb
.bssid
[5] = strtol(&bssid
[12], NULL
, 16);
1336 sb
.bssid
[6] = strtol(&bssid
[15], NULL
, 16);
1341 sprintf(buf
, "%02X:%02X:%02X:%02X:%02X:%02X",
1342 sb
.bssid
[1], sb
.bssid
[2], sb
.bssid
[3],
1343 sb
.bssid
[4], sb
.bssid
[5], sb
.bssid
[6]);
1352 static int nl80211_get_frequency_scan_cb(struct nl_msg
*msg
, void *arg
)
1355 struct nlattr
**attr
= nl80211_parse(msg
);
1356 struct nlattr
*binfo
[NL80211_BSS_MAX
+ 1];
1358 static struct nla_policy bss_policy
[NL80211_BSS_MAX
+ 1] = {
1359 [NL80211_BSS_FREQUENCY
] = { .type
= NLA_U32
},
1360 [NL80211_BSS_STATUS
] = { .type
= NLA_U32
},
1363 if (attr
[NL80211_ATTR_BSS
] &&
1364 !nla_parse_nested(binfo
, NL80211_BSS_MAX
,
1365 attr
[NL80211_ATTR_BSS
], bss_policy
))
1367 if (binfo
[NL80211_BSS_STATUS
] && binfo
[NL80211_BSS_FREQUENCY
])
1368 *freq
= nla_get_u32(binfo
[NL80211_BSS_FREQUENCY
]);
1374 static int nl80211_get_frequency_info_cb(struct nl_msg
*msg
, void *arg
)
1377 struct nlattr
**tb
= nl80211_parse(msg
);
1379 if (tb
[NL80211_ATTR_WIPHY_FREQ
])
1380 *freq
= nla_get_u32(tb
[NL80211_ATTR_WIPHY_FREQ
]);
1385 static int nl80211_get_frequency(const char *ifname
, int *buf
)
1387 char *res
, channel
[4] = { 0 }, hwmode
[3] = { 0 }, ax
[2] = { 0 };
1389 /* try to find frequency from interface info */
1390 res
= nl80211_phy2ifname(ifname
);
1393 nl80211_request(res
? res
: ifname
, NL80211_CMD_GET_INTERFACE
, 0,
1394 nl80211_get_frequency_info_cb
, buf
);
1396 /* failed, try to find frequency from hostapd info */
1398 nl80211_hostapd_query(ifname
, "hw_mode", hwmode
, sizeof(hwmode
),
1399 "channel", channel
, sizeof(channel
),
1400 "ieee80211ax", ax
, sizeof(ax
)) >= 2)
1402 *buf
= nl80211_channel2freq(atoi(channel
), hwmode
, ax
[0] == '1');
1405 /* failed, try to find frequency from scan results */
1408 res
= nl80211_phy2ifname(ifname
);
1410 nl80211_request(res
? res
: ifname
, NL80211_CMD_GET_SCAN
, NLM_F_DUMP
,
1411 nl80211_get_frequency_scan_cb
, buf
);
1414 return (*buf
== 0) ? -1 : 0;
1417 static int nl80211_get_center_freq1_cb(struct nl_msg
*msg
, void *arg
)
1420 struct nlattr
**tb
= nl80211_parse(msg
);
1422 if (tb
[NL80211_ATTR_CENTER_FREQ1
])
1423 *freq
= nla_get_u32(tb
[NL80211_ATTR_CENTER_FREQ1
]);
1428 static int nl80211_get_center_freq1(const char *ifname
, int *buf
)
1432 /* try to find frequency from interface info */
1433 res
= nl80211_phy2ifname(ifname
);
1436 nl80211_request(res
? res
: ifname
, NL80211_CMD_GET_INTERFACE
, 0,
1437 nl80211_get_center_freq1_cb
, buf
);
1439 return (*buf
== 0) ? -1 : 0;
1442 static int nl80211_get_center_freq2_cb(struct nl_msg
*msg
, void *arg
)
1445 struct nlattr
**tb
= nl80211_parse(msg
);
1447 if (tb
[NL80211_ATTR_CENTER_FREQ2
])
1448 *freq
= nla_get_u32(tb
[NL80211_ATTR_CENTER_FREQ2
]);
1453 static int nl80211_get_center_freq2(const char *ifname
, int *buf
)
1457 /* try to find frequency from interface info */
1458 res
= nl80211_phy2ifname(ifname
);
1461 nl80211_request(res
? res
: ifname
, NL80211_CMD_GET_INTERFACE
, 0,
1462 nl80211_get_center_freq2_cb
, buf
);
1464 return (*buf
== 0) ? -1 : 0;
1467 static int nl80211_get_channel(const char *ifname
, int *buf
)
1469 if (!nl80211_get_frequency(ifname
, buf
))
1471 *buf
= nl80211_freq2channel(*buf
);
1478 static int nl80211_get_center_chan1(const char *ifname
, int *buf
)
1480 if (!nl80211_get_center_freq1(ifname
, buf
))
1482 *buf
= nl80211_freq2channel(*buf
);
1489 static int nl80211_get_center_chan2(const char *ifname
, int *buf
)
1491 if (!nl80211_get_center_freq2(ifname
, buf
))
1493 *buf
= nl80211_freq2channel(*buf
);
1500 static int nl80211_get_txpower_cb(struct nl_msg
*msg
, void *arg
)
1503 struct nlattr
**tb
= nl80211_parse(msg
);
1505 if (tb
[NL80211_ATTR_WIPHY_TX_POWER_LEVEL
])
1506 *buf
= iwinfo_mbm2dbm(nla_get_u32(tb
[NL80211_ATTR_WIPHY_TX_POWER_LEVEL
]));
1511 static int nl80211_get_txpower(const char *ifname
, int *buf
)
1515 res
= nl80211_phy2ifname(ifname
);
1518 if (nl80211_request(res
? res
: ifname
, NL80211_CMD_GET_INTERFACE
, 0,
1519 nl80211_get_txpower_cb
, buf
))
1526 static int nl80211_fill_signal_cb(struct nl_msg
*msg
, void *arg
)
1530 struct nl80211_rssi_rate
*rr
= arg
;
1531 struct nlattr
**attr
= nl80211_parse(msg
);
1532 struct nlattr
*sinfo
[NL80211_STA_INFO_MAX
+ 1];
1533 struct nlattr
*rinfo
[NL80211_RATE_INFO_MAX
+ 1];
1535 static struct nla_policy stats_policy
[NL80211_STA_INFO_MAX
+ 1] = {
1536 [NL80211_STA_INFO_INACTIVE_TIME
] = { .type
= NLA_U32
},
1537 [NL80211_STA_INFO_RX_BYTES
] = { .type
= NLA_U32
},
1538 [NL80211_STA_INFO_TX_BYTES
] = { .type
= NLA_U32
},
1539 [NL80211_STA_INFO_RX_PACKETS
] = { .type
= NLA_U32
},
1540 [NL80211_STA_INFO_TX_PACKETS
] = { .type
= NLA_U32
},
1541 [NL80211_STA_INFO_SIGNAL
] = { .type
= NLA_U8
},
1542 [NL80211_STA_INFO_TX_BITRATE
] = { .type
= NLA_NESTED
},
1543 [NL80211_STA_INFO_LLID
] = { .type
= NLA_U16
},
1544 [NL80211_STA_INFO_PLID
] = { .type
= NLA_U16
},
1545 [NL80211_STA_INFO_PLINK_STATE
] = { .type
= NLA_U8
},
1548 static struct nla_policy rate_policy
[NL80211_RATE_INFO_MAX
+ 1] = {
1549 [NL80211_RATE_INFO_BITRATE
] = { .type
= NLA_U16
},
1550 [NL80211_RATE_INFO_MCS
] = { .type
= NLA_U8
},
1551 [NL80211_RATE_INFO_40_MHZ_WIDTH
] = { .type
= NLA_FLAG
},
1552 [NL80211_RATE_INFO_SHORT_GI
] = { .type
= NLA_FLAG
},
1555 if (attr
[NL80211_ATTR_STA_INFO
])
1557 if (!nla_parse_nested(sinfo
, NL80211_STA_INFO_MAX
,
1558 attr
[NL80211_ATTR_STA_INFO
], stats_policy
))
1560 if (sinfo
[NL80211_STA_INFO_SIGNAL
])
1562 dbm
= nla_get_u8(sinfo
[NL80211_STA_INFO_SIGNAL
]);
1563 rr
->rssi
= (rr
->rssi
* rr
->rssi_samples
+ dbm
) / (rr
->rssi_samples
+ 1);
1567 if (sinfo
[NL80211_STA_INFO_TX_BITRATE
])
1569 if (!nla_parse_nested(rinfo
, NL80211_RATE_INFO_MAX
,
1570 sinfo
[NL80211_STA_INFO_TX_BITRATE
],
1573 if (rinfo
[NL80211_RATE_INFO_BITRATE
])
1575 mbit
= nla_get_u16(rinfo
[NL80211_RATE_INFO_BITRATE
]);
1576 rr
->rate
= (rr
->rate
* rr
->rate_samples
+ mbit
) / (rr
->rate_samples
+ 1);
1587 static void nl80211_fill_signal(const char *ifname
, struct nl80211_rssi_rate
*r
)
1592 memset(r
, 0, sizeof(*r
));
1594 if ((d
= opendir("/sys/class/net")) != NULL
)
1596 while ((de
= readdir(d
)) != NULL
)
1598 if (!strncmp(de
->d_name
, ifname
, strlen(ifname
)) &&
1599 (!de
->d_name
[strlen(ifname
)] ||
1600 !strncmp(&de
->d_name
[strlen(ifname
)], ".sta", 4)))
1602 nl80211_request(de
->d_name
, NL80211_CMD_GET_STATION
,
1603 NLM_F_DUMP
, nl80211_fill_signal_cb
, r
);
1611 static int nl80211_get_bitrate(const char *ifname
, int *buf
)
1613 struct nl80211_rssi_rate rr
;
1615 nl80211_fill_signal(ifname
, &rr
);
1617 if (rr
.rate_samples
)
1619 *buf
= (rr
.rate
* 100);
1626 static int nl80211_get_signal(const char *ifname
, int *buf
)
1628 struct nl80211_rssi_rate rr
;
1630 nl80211_fill_signal(ifname
, &rr
);
1632 if (rr
.rssi_samples
)
1641 static int nl80211_get_noise_cb(struct nl_msg
*msg
, void *arg
)
1643 int8_t *noise
= arg
;
1644 struct nlattr
**tb
= nl80211_parse(msg
);
1645 struct nlattr
*si
[NL80211_SURVEY_INFO_MAX
+ 1];
1647 static struct nla_policy sp
[NL80211_SURVEY_INFO_MAX
+ 1] = {
1648 [NL80211_SURVEY_INFO_FREQUENCY
] = { .type
= NLA_U32
},
1649 [NL80211_SURVEY_INFO_NOISE
] = { .type
= NLA_U8
},
1652 if (!tb
[NL80211_ATTR_SURVEY_INFO
])
1655 if (nla_parse_nested(si
, NL80211_SURVEY_INFO_MAX
,
1656 tb
[NL80211_ATTR_SURVEY_INFO
], sp
))
1659 if (!si
[NL80211_SURVEY_INFO_NOISE
])
1662 if (!*noise
|| si
[NL80211_SURVEY_INFO_IN_USE
])
1663 *noise
= (int8_t)nla_get_u8(si
[NL80211_SURVEY_INFO_NOISE
]);
1669 static int nl80211_get_noise(const char *ifname
, int *buf
)
1673 if (nl80211_request(ifname
, NL80211_CMD_GET_SURVEY
, NLM_F_DUMP
,
1674 nl80211_get_noise_cb
, &noise
))
1685 static int nl80211_get_quality(const char *ifname
, int *buf
)
1689 if (!nl80211_get_signal(ifname
, &signal
))
1691 /* A positive signal level is usually just a quality
1692 * value, pass through as-is */
1698 /* The cfg80211 wext compat layer assumes a signal range
1699 * of -110 dBm to -40 dBm, the quality value is derived
1700 * by adding 110 to the signal level */
1705 else if (signal
> -40)
1708 *buf
= (signal
+ 110);
1717 static int nl80211_get_quality_max(const char *ifname
, int *buf
)
1719 /* The cfg80211 wext compat layer assumes a maximum
1726 static int nl80211_check_wepkey(const char *key
)
1730 switch (strlen(key
))
1734 return IWINFO_CIPHER_WEP40
;
1738 return IWINFO_CIPHER_WEP104
;
1749 } wpa_key_mgmt_strings
[] = {
1750 { "IEEE 802.1X/EAP", 0, IWINFO_KMGMT_8021x
},
1751 { "EAP-SUITE-B-192", 4, IWINFO_KMGMT_8021x
},
1752 { "EAP-SUITE-B", 4, IWINFO_KMGMT_8021x
},
1753 { "EAP-SHA384", 4, IWINFO_KMGMT_8021x
},
1754 { "EAP-SHA256", 0, IWINFO_KMGMT_8021x
},
1755 { "PSK-SHA256", 0, IWINFO_KMGMT_PSK
},
1756 { "NONE", 0, IWINFO_KMGMT_NONE
},
1757 { "None", 0, IWINFO_KMGMT_NONE
},
1758 { "PSK", 0, IWINFO_KMGMT_PSK
},
1759 { "EAP", 0, IWINFO_KMGMT_8021x
},
1760 { "SAE", 4, IWINFO_KMGMT_SAE
},
1761 { "OWE", 4, IWINFO_KMGMT_OWE
}
1764 static void parse_wpa_suites(const char *str
, int defversion
,
1765 uint8_t *versions
, uint8_t *suites
)
1769 const char *p
, *q
, *m
, *sep
= " \t\n,-+/";
1775 for (i
= 0; i
< ARRAY_SIZE(wpa_key_mgmt_strings
); i
++)
1777 m
= wpa_key_mgmt_strings
[i
].match
;
1780 if (!strncmp(q
, m
, l
) && (!q
[l
] || strchr(sep
, q
[l
])))
1782 if (wpa_key_mgmt_strings
[i
].version
!= 0)
1783 version
= wpa_key_mgmt_strings
[i
].version
;
1785 version
= defversion
;
1787 *versions
|= version
;
1788 *suites
|= wpa_key_mgmt_strings
[i
].suite
;
1796 q
+= strcspn(q
, sep
);
1798 p
= q
+ strspn(q
, sep
);
1805 } wpa_cipher_strings
[] = {
1806 { "WEP-104", IWINFO_CIPHER_WEP104
},
1807 { "WEP-40", IWINFO_CIPHER_WEP40
},
1808 { "NONE", IWINFO_CIPHER_NONE
},
1809 { "TKIP", IWINFO_CIPHER_TKIP
},
1810 { "CCMP-256",IWINFO_CIPHER_CCMP256
},
1811 { "CCMP", IWINFO_CIPHER_CCMP
},
1812 { "GCMP-256",IWINFO_CIPHER_GCMP256
},
1813 { "GCMP", IWINFO_CIPHER_GCMP
}
1816 static void parse_wpa_ciphers(const char *str
, uint16_t *ciphers
)
1820 const char *m
, *p
, *q
, *sep
= " \t\n,-+/";
1826 for (i
= 0; i
< ARRAY_SIZE(wpa_cipher_strings
); i
++)
1828 m
= wpa_cipher_strings
[i
].match
;
1831 if (!strncmp(q
, m
, l
) && (!q
[l
] || strchr(sep
, q
[l
])))
1833 *ciphers
|= wpa_cipher_strings
[i
].cipher
;
1841 q
+= strcspn(q
, sep
);
1843 p
= q
+ strspn(q
, sep
);
1847 static int nl80211_get_encryption(const char *ifname
, char *buf
)
1851 uint8_t wpa_version
= 0;
1852 char wpa
[2], wpa_key_mgmt
[64], wpa_pairwise
[16], wpa_groupwise
[16];
1853 char auth_algs
[2], wep_key0
[27], wep_key1
[27], wep_key2
[27], wep_key3
[27];
1856 struct iwinfo_crypto_entry
*c
= (struct iwinfo_crypto_entry
*)buf
;
1858 /* WPA supplicant */
1859 if (nl80211_wpactl_query(ifname
,
1860 "pairwise_cipher", wpa_pairwise
, sizeof(wpa_pairwise
),
1861 "group_cipher", wpa_groupwise
, sizeof(wpa_groupwise
),
1862 "key_mgmt", wpa_key_mgmt
, sizeof(wpa_key_mgmt
),
1863 "mode", mode
, sizeof(mode
)))
1866 if (!strcmp(wpa_key_mgmt
, "NONE"))
1868 parse_wpa_ciphers(wpa_pairwise
, &c
->pair_ciphers
);
1869 parse_wpa_ciphers(wpa_groupwise
, &c
->group_ciphers
);
1871 if (c
->pair_ciphers
!= 0 && c
->pair_ciphers
!= IWINFO_CIPHER_NONE
) {
1873 c
->auth_suites
= IWINFO_KMGMT_NONE
;
1874 c
->auth_algs
= IWINFO_AUTH_OPEN
| IWINFO_AUTH_SHARED
;
1877 c
->pair_ciphers
= 0;
1878 c
->group_ciphers
= 0;
1883 else if (!strcmp(mode
, "mesh") && !strcmp(wpa_key_mgmt
, "UNKNOWN"))
1887 c
->auth_suites
= IWINFO_KMGMT_SAE
;
1888 c
->pair_ciphers
= IWINFO_CIPHER_CCMP
;
1889 c
->group_ciphers
= IWINFO_CIPHER_CCMP
;
1895 parse_wpa_ciphers(wpa_pairwise
, &c
->pair_ciphers
);
1896 parse_wpa_ciphers(wpa_groupwise
, &c
->group_ciphers
);
1900 if (!strncmp(p
, "WPA2-", 5) || !strncmp(p
, "WPA2/", 5))
1905 else if (!strncmp(p
, "WPA-", 4))
1911 parse_wpa_suites(p
, wpa_version
, &c
->wpa_version
, &c
->auth_suites
);
1913 c
->enabled
= !!(c
->wpa_version
&& c
->auth_suites
);
1920 else if (nl80211_hostapd_query(ifname
,
1921 "wpa", wpa
, sizeof(wpa
),
1922 "wpa_key_mgmt", wpa_key_mgmt
, sizeof(wpa_key_mgmt
),
1923 "wpa_pairwise", wpa_pairwise
, sizeof(wpa_pairwise
),
1924 "auth_algs", auth_algs
, sizeof(auth_algs
),
1925 "wep_key0", wep_key0
, sizeof(wep_key0
),
1926 "wep_key1", wep_key1
, sizeof(wep_key1
),
1927 "wep_key2", wep_key2
, sizeof(wep_key2
),
1928 "wep_key3", wep_key3
, sizeof(wep_key3
)))
1932 if (wpa_key_mgmt
[0])
1934 for (p
= strtok(wpa_key_mgmt
, " \t"); p
!= NULL
; p
= strtok(NULL
, " \t"))
1936 if (!strncmp(p
, "WPA-", 4))
1939 if (!strncmp(p
, "FT-", 3))
1942 parse_wpa_suites(p
, atoi(wpa
), &c
->wpa_version
, &c
->auth_suites
);
1945 c
->enabled
= c
->wpa_version
? 1 : 0;
1948 if (wpa_pairwise
[0])
1949 parse_wpa_ciphers(wpa_pairwise
, &c
->pair_ciphers
);
1953 switch (atoi(auth_algs
))
1956 c
->auth_algs
|= IWINFO_AUTH_OPEN
;
1960 c
->auth_algs
|= IWINFO_AUTH_SHARED
;
1964 c
->auth_algs
|= IWINFO_AUTH_OPEN
;
1965 c
->auth_algs
|= IWINFO_AUTH_SHARED
;
1969 c
->pair_ciphers
|= nl80211_check_wepkey(wep_key0
);
1970 c
->pair_ciphers
|= nl80211_check_wepkey(wep_key1
);
1971 c
->pair_ciphers
|= nl80211_check_wepkey(wep_key2
);
1972 c
->pair_ciphers
|= nl80211_check_wepkey(wep_key3
);
1974 c
->enabled
= (c
->auth_algs
&& c
->pair_ciphers
) ? 1 : 0;
1977 c
->group_ciphers
= c
->pair_ciphers
;
1982 /* Ad-Hoc or Mesh interfaces without wpa_supplicant are open */
1983 else if (!nl80211_get_mode(ifname
, &opmode
) &&
1984 (opmode
== IWINFO_OPMODE_ADHOC
||
1985 opmode
== IWINFO_OPMODE_MESHPOINT
))
1996 static int nl80211_get_phyname(const char *ifname
, char *buf
)
2000 name
= nl80211_ifname2phy(ifname
);
2007 else if ((name
= nl80211_phy2ifname(ifname
)) != NULL
)
2009 name
= nl80211_ifname2phy(name
);
2013 strcpy(buf
, ifname
);
2022 static void nl80211_parse_rateinfo(struct nlattr
**ri
,
2023 struct iwinfo_rate_entry
*re
)
2025 if (ri
[NL80211_RATE_INFO_BITRATE32
])
2026 re
->rate
= nla_get_u32(ri
[NL80211_RATE_INFO_BITRATE32
]) * 100;
2027 else if (ri
[NL80211_RATE_INFO_BITRATE
])
2028 re
->rate
= nla_get_u16(ri
[NL80211_RATE_INFO_BITRATE
]) * 100;
2030 if (ri
[NL80211_RATE_INFO_HE_MCS
])
2033 re
->mcs
= nla_get_u8(ri
[NL80211_RATE_INFO_HE_MCS
]);
2035 if (ri
[NL80211_RATE_INFO_HE_NSS
])
2036 re
->nss
= nla_get_u8(ri
[NL80211_RATE_INFO_HE_NSS
]);
2037 if (ri
[NL80211_RATE_INFO_HE_GI
])
2038 re
->he_gi
= nla_get_u8(ri
[NL80211_RATE_INFO_HE_GI
]);
2039 if (ri
[NL80211_RATE_INFO_HE_DCM
])
2040 re
->he_dcm
= nla_get_u8(ri
[NL80211_RATE_INFO_HE_DCM
]);
2042 else if (ri
[NL80211_RATE_INFO_VHT_MCS
])
2045 re
->mcs
= nla_get_u8(ri
[NL80211_RATE_INFO_VHT_MCS
]);
2047 if (ri
[NL80211_RATE_INFO_VHT_NSS
])
2048 re
->nss
= nla_get_u8(ri
[NL80211_RATE_INFO_VHT_NSS
]);
2050 else if (ri
[NL80211_RATE_INFO_MCS
])
2053 re
->mcs
= nla_get_u8(ri
[NL80211_RATE_INFO_MCS
]);
2056 if (ri
[NL80211_RATE_INFO_5_MHZ_WIDTH
])
2058 else if (ri
[NL80211_RATE_INFO_10_MHZ_WIDTH
])
2060 else if (ri
[NL80211_RATE_INFO_40_MHZ_WIDTH
])
2062 else if (ri
[NL80211_RATE_INFO_80_MHZ_WIDTH
])
2064 else if (ri
[NL80211_RATE_INFO_80P80_MHZ_WIDTH
] ||
2065 ri
[NL80211_RATE_INFO_160_MHZ_WIDTH
])
2070 if (ri
[NL80211_RATE_INFO_SHORT_GI
])
2071 re
->is_short_gi
= 1;
2073 re
->is_40mhz
= (re
->mhz
== 40);
2076 static int nl80211_get_survey_cb(struct nl_msg
*msg
, void *arg
)
2078 struct nl80211_array_buf
*arr
= arg
;
2079 struct iwinfo_survey_entry
*e
= arr
->buf
;
2080 struct nlattr
**attr
= nl80211_parse(msg
);
2081 struct nlattr
*sinfo
[NL80211_SURVEY_INFO_MAX
+ 1];
2084 static struct nla_policy survey_policy
[NL80211_SURVEY_INFO_MAX
+ 1] = {
2085 [NL80211_SURVEY_INFO_FREQUENCY
] = { .type
= NLA_U32
},
2086 [NL80211_SURVEY_INFO_NOISE
] = { .type
= NLA_U8
},
2087 [NL80211_SURVEY_INFO_TIME
] = { .type
= NLA_U64
},
2088 [NL80211_SURVEY_INFO_TIME_BUSY
] = { .type
= NLA_U64
},
2089 [NL80211_SURVEY_INFO_TIME_EXT_BUSY
] = { .type
= NLA_U64
},
2090 [NL80211_SURVEY_INFO_TIME_RX
] = { .type
= NLA_U64
},
2091 [NL80211_SURVEY_INFO_TIME_TX
] = { .type
= NLA_U64
},
2094 rc
= nla_parse_nested(sinfo
, NL80211_SURVEY_INFO_MAX
,
2095 attr
[NL80211_ATTR_SURVEY_INFO
],
2100 /* advance to end of array */
2102 memset(e
, 0, sizeof(*e
));
2104 if (sinfo
[NL80211_SURVEY_INFO_FREQUENCY
])
2105 e
->mhz
= nla_get_u32(sinfo
[NL80211_SURVEY_INFO_FREQUENCY
]);
2107 if (sinfo
[NL80211_SURVEY_INFO_NOISE
])
2108 e
->noise
= nla_get_u8(sinfo
[NL80211_SURVEY_INFO_NOISE
]);
2110 if (sinfo
[NL80211_SURVEY_INFO_TIME
])
2111 e
->active_time
= nla_get_u64(sinfo
[NL80211_SURVEY_INFO_TIME
]);
2113 if (sinfo
[NL80211_SURVEY_INFO_TIME_BUSY
])
2114 e
->busy_time
= nla_get_u64(sinfo
[NL80211_SURVEY_INFO_TIME_BUSY
]);
2116 if (sinfo
[NL80211_SURVEY_INFO_TIME_EXT_BUSY
])
2117 e
->busy_time_ext
= nla_get_u64(sinfo
[NL80211_SURVEY_INFO_TIME_EXT_BUSY
]);
2119 if (sinfo
[NL80211_SURVEY_INFO_TIME_RX
])
2120 e
->rxtime
= nla_get_u64(sinfo
[NL80211_SURVEY_INFO_TIME_RX
]);
2122 if (sinfo
[NL80211_SURVEY_INFO_TIME_TX
])
2123 e
->txtime
= nla_get_u64(sinfo
[NL80211_SURVEY_INFO_TIME_TX
]);
2130 static void plink_state_to_str(char *dst
, unsigned state
)
2133 case NL80211_PLINK_LISTEN
:
2134 strcpy(dst
, "LISTEN");
2136 case NL80211_PLINK_OPN_SNT
:
2137 strcpy(dst
, "OPN_SNT");
2139 case NL80211_PLINK_OPN_RCVD
:
2140 strcpy(dst
, "OPN_RCVD");
2142 case NL80211_PLINK_CNF_RCVD
:
2143 strcpy(dst
, "CNF_RCVD");
2145 case NL80211_PLINK_ESTAB
:
2146 strcpy(dst
, "ESTAB");
2148 case NL80211_PLINK_HOLDING
:
2149 strcpy(dst
, "HOLDING");
2151 case NL80211_PLINK_BLOCKED
:
2152 strcpy(dst
, "BLOCKED");
2155 strcpy(dst
, "UNKNOWN");
2160 static void power_mode_to_str(char *dst
, struct nlattr
*a
)
2162 enum nl80211_mesh_power_mode pm
= nla_get_u32(a
);
2165 case NL80211_MESH_POWER_ACTIVE
:
2166 strcpy(dst
, "ACTIVE");
2168 case NL80211_MESH_POWER_LIGHT_SLEEP
:
2169 strcpy(dst
, "LIGHT SLEEP");
2171 case NL80211_MESH_POWER_DEEP_SLEEP
:
2172 strcpy(dst
, "DEEP SLEEP");
2175 strcpy(dst
, "UNKNOWN");
2180 static int nl80211_get_assoclist_cb(struct nl_msg
*msg
, void *arg
)
2182 struct nl80211_array_buf
*arr
= arg
;
2183 struct iwinfo_assoclist_entry
*e
= arr
->buf
;
2184 struct nlattr
**attr
= nl80211_parse(msg
);
2185 struct nlattr
*sinfo
[NL80211_STA_INFO_MAX
+ 1];
2186 struct nlattr
*rinfo
[NL80211_RATE_INFO_MAX
+ 1];
2187 struct nl80211_sta_flag_update
*sta_flags
;
2189 static struct nla_policy stats_policy
[NL80211_STA_INFO_MAX
+ 1] = {
2190 [NL80211_STA_INFO_INACTIVE_TIME
] = { .type
= NLA_U32
},
2191 [NL80211_STA_INFO_RX_PACKETS
] = { .type
= NLA_U32
},
2192 [NL80211_STA_INFO_TX_PACKETS
] = { .type
= NLA_U32
},
2193 [NL80211_STA_INFO_RX_BITRATE
] = { .type
= NLA_NESTED
},
2194 [NL80211_STA_INFO_TX_BITRATE
] = { .type
= NLA_NESTED
},
2195 [NL80211_STA_INFO_SIGNAL
] = { .type
= NLA_U8
},
2196 [NL80211_STA_INFO_SIGNAL_AVG
] = { .type
= NLA_U8
},
2197 [NL80211_STA_INFO_RX_BYTES
] = { .type
= NLA_U32
},
2198 [NL80211_STA_INFO_TX_BYTES
] = { .type
= NLA_U32
},
2199 [NL80211_STA_INFO_TX_RETRIES
] = { .type
= NLA_U32
},
2200 [NL80211_STA_INFO_TX_FAILED
] = { .type
= NLA_U32
},
2201 [NL80211_STA_INFO_CONNECTED_TIME
]= { .type
= NLA_U32
},
2202 [NL80211_STA_INFO_RX_DROP_MISC
] = { .type
= NLA_U64
},
2203 [NL80211_STA_INFO_T_OFFSET
] = { .type
= NLA_U64
},
2204 [NL80211_STA_INFO_STA_FLAGS
] =
2205 { .minlen
= sizeof(struct nl80211_sta_flag_update
) },
2206 [NL80211_STA_INFO_EXPECTED_THROUGHPUT
] = { .type
= NLA_U32
},
2208 [NL80211_STA_INFO_LLID
] = { .type
= NLA_U16
},
2209 [NL80211_STA_INFO_PLID
] = { .type
= NLA_U16
},
2210 [NL80211_STA_INFO_PLINK_STATE
] = { .type
= NLA_U8
},
2211 [NL80211_STA_INFO_LOCAL_PM
] = { .type
= NLA_U32
},
2212 [NL80211_STA_INFO_PEER_PM
] = { .type
= NLA_U32
},
2213 [NL80211_STA_INFO_NONPEER_PM
] = { .type
= NLA_U32
},
2216 static struct nla_policy rate_policy
[NL80211_RATE_INFO_MAX
+ 1] = {
2217 [NL80211_RATE_INFO_BITRATE
] = { .type
= NLA_U16
},
2218 [NL80211_RATE_INFO_MCS
] = { .type
= NLA_U8
},
2219 [NL80211_RATE_INFO_40_MHZ_WIDTH
] = { .type
= NLA_FLAG
},
2220 [NL80211_RATE_INFO_SHORT_GI
] = { .type
= NLA_FLAG
},
2223 /* advance to end of array */
2225 memset(e
, 0, sizeof(*e
));
2227 if (attr
[NL80211_ATTR_MAC
])
2228 memcpy(e
->mac
, nla_data(attr
[NL80211_ATTR_MAC
]), 6);
2230 if (attr
[NL80211_ATTR_STA_INFO
] &&
2231 !nla_parse_nested(sinfo
, NL80211_STA_INFO_MAX
,
2232 attr
[NL80211_ATTR_STA_INFO
], stats_policy
))
2234 if (sinfo
[NL80211_STA_INFO_SIGNAL
])
2235 e
->signal
= nla_get_u8(sinfo
[NL80211_STA_INFO_SIGNAL
]);
2237 if (sinfo
[NL80211_STA_INFO_SIGNAL_AVG
])
2238 e
->signal_avg
= nla_get_u8(sinfo
[NL80211_STA_INFO_SIGNAL_AVG
]);
2240 if (sinfo
[NL80211_STA_INFO_INACTIVE_TIME
])
2241 e
->inactive
= nla_get_u32(sinfo
[NL80211_STA_INFO_INACTIVE_TIME
]);
2243 if (sinfo
[NL80211_STA_INFO_CONNECTED_TIME
])
2244 e
->connected_time
= nla_get_u32(sinfo
[NL80211_STA_INFO_CONNECTED_TIME
]);
2246 if (sinfo
[NL80211_STA_INFO_RX_PACKETS
])
2247 e
->rx_packets
= nla_get_u32(sinfo
[NL80211_STA_INFO_RX_PACKETS
]);
2249 if (sinfo
[NL80211_STA_INFO_TX_PACKETS
])
2250 e
->tx_packets
= nla_get_u32(sinfo
[NL80211_STA_INFO_TX_PACKETS
]);
2252 if (sinfo
[NL80211_STA_INFO_RX_BITRATE
] &&
2253 !nla_parse_nested(rinfo
, NL80211_RATE_INFO_MAX
,
2254 sinfo
[NL80211_STA_INFO_RX_BITRATE
], rate_policy
))
2255 nl80211_parse_rateinfo(rinfo
, &e
->rx_rate
);
2257 if (sinfo
[NL80211_STA_INFO_TX_BITRATE
] &&
2258 !nla_parse_nested(rinfo
, NL80211_RATE_INFO_MAX
,
2259 sinfo
[NL80211_STA_INFO_TX_BITRATE
], rate_policy
))
2260 nl80211_parse_rateinfo(rinfo
, &e
->tx_rate
);
2262 if (sinfo
[NL80211_STA_INFO_RX_BYTES
])
2263 e
->rx_bytes
= nla_get_u32(sinfo
[NL80211_STA_INFO_RX_BYTES
]);
2265 if (sinfo
[NL80211_STA_INFO_TX_BYTES
])
2266 e
->tx_bytes
= nla_get_u32(sinfo
[NL80211_STA_INFO_TX_BYTES
]);
2268 if (sinfo
[NL80211_STA_INFO_TX_RETRIES
])
2269 e
->tx_retries
= nla_get_u32(sinfo
[NL80211_STA_INFO_TX_RETRIES
]);
2271 if (sinfo
[NL80211_STA_INFO_TX_FAILED
])
2272 e
->tx_failed
= nla_get_u32(sinfo
[NL80211_STA_INFO_TX_FAILED
]);
2274 if (sinfo
[NL80211_STA_INFO_T_OFFSET
])
2275 e
->t_offset
= nla_get_u64(sinfo
[NL80211_STA_INFO_T_OFFSET
]);
2277 if (sinfo
[NL80211_STA_INFO_RX_DROP_MISC
])
2278 e
->rx_drop_misc
= nla_get_u64(sinfo
[NL80211_STA_INFO_RX_DROP_MISC
]);
2280 if (sinfo
[NL80211_STA_INFO_EXPECTED_THROUGHPUT
])
2281 e
->thr
= nla_get_u32(sinfo
[NL80211_STA_INFO_EXPECTED_THROUGHPUT
]);
2284 if (sinfo
[NL80211_STA_INFO_LLID
])
2285 e
->llid
= nla_get_u16(sinfo
[NL80211_STA_INFO_LLID
]);
2287 if (sinfo
[NL80211_STA_INFO_PLID
])
2288 e
->plid
= nla_get_u16(sinfo
[NL80211_STA_INFO_PLID
]);
2290 if (sinfo
[NL80211_STA_INFO_PLINK_STATE
])
2291 plink_state_to_str(e
->plink_state
,
2292 nla_get_u8(sinfo
[NL80211_STA_INFO_PLINK_STATE
]));
2294 if (sinfo
[NL80211_STA_INFO_LOCAL_PM
])
2295 power_mode_to_str(e
->local_ps
, sinfo
[NL80211_STA_INFO_LOCAL_PM
]);
2296 if (sinfo
[NL80211_STA_INFO_PEER_PM
])
2297 power_mode_to_str(e
->peer_ps
, sinfo
[NL80211_STA_INFO_PEER_PM
]);
2298 if (sinfo
[NL80211_STA_INFO_NONPEER_PM
])
2299 power_mode_to_str(e
->nonpeer_ps
, sinfo
[NL80211_STA_INFO_NONPEER_PM
]);
2302 if (sinfo
[NL80211_STA_INFO_STA_FLAGS
])
2304 sta_flags
= (struct nl80211_sta_flag_update
*)
2305 nla_data(sinfo
[NL80211_STA_INFO_STA_FLAGS
]);
2307 if (sta_flags
->mask
& BIT(NL80211_STA_FLAG_AUTHORIZED
) &&
2308 sta_flags
->set
& BIT(NL80211_STA_FLAG_AUTHORIZED
))
2309 e
->is_authorized
= 1;
2311 if (sta_flags
->mask
& BIT(NL80211_STA_FLAG_AUTHENTICATED
) &&
2312 sta_flags
->set
& BIT(NL80211_STA_FLAG_AUTHENTICATED
))
2313 e
->is_authenticated
= 1;
2315 if (sta_flags
->mask
& BIT(NL80211_STA_FLAG_SHORT_PREAMBLE
) &&
2316 sta_flags
->set
& BIT(NL80211_STA_FLAG_SHORT_PREAMBLE
))
2317 e
->is_preamble_short
= 1;
2319 if (sta_flags
->mask
& BIT(NL80211_STA_FLAG_WME
) &&
2320 sta_flags
->set
& BIT(NL80211_STA_FLAG_WME
))
2323 if (sta_flags
->mask
& BIT(NL80211_STA_FLAG_MFP
) &&
2324 sta_flags
->set
& BIT(NL80211_STA_FLAG_MFP
))
2327 if (sta_flags
->mask
& BIT(NL80211_STA_FLAG_TDLS_PEER
) &&
2328 sta_flags
->set
& BIT(NL80211_STA_FLAG_TDLS_PEER
))
2333 e
->noise
= 0; /* filled in by caller */
2339 static int nl80211_get_survey(const char *ifname
, char *buf
, int *len
)
2341 struct nl80211_array_buf arr
= { .buf
= buf
, .count
= 0 };
2344 rc
= nl80211_request(ifname
, NL80211_CMD_GET_SURVEY
,
2345 NLM_F_DUMP
, nl80211_get_survey_cb
, &arr
);
2347 *len
= (arr
.count
* sizeof(struct iwinfo_survey_entry
));
2354 static int nl80211_get_assoclist(const char *ifname
, char *buf
, int *len
)
2359 struct nl80211_array_buf arr
= { .buf
= buf
, .count
= 0 };
2360 struct iwinfo_assoclist_entry
*e
;
2362 if ((d
= opendir("/sys/class/net")) != NULL
)
2364 while ((de
= readdir(d
)) != NULL
)
2366 if (!strncmp(de
->d_name
, ifname
, strlen(ifname
)) &&
2367 (!de
->d_name
[strlen(ifname
)] ||
2368 !strncmp(&de
->d_name
[strlen(ifname
)], ".sta", 4)))
2370 nl80211_request(de
->d_name
, NL80211_CMD_GET_STATION
,
2371 NLM_F_DUMP
, nl80211_get_assoclist_cb
, &arr
);
2377 if (!nl80211_get_noise(ifname
, &noise
))
2378 for (i
= 0, e
= arr
.buf
; i
< arr
.count
; i
++, e
++)
2381 *len
= (arr
.count
* sizeof(struct iwinfo_assoclist_entry
));
2388 static int nl80211_get_txpwrlist_cb(struct nl_msg
*msg
, void *arg
)
2391 int ch_cur
, ch_cmp
, bands_remain
, freqs_remain
;
2393 struct nlattr
**attr
= nl80211_parse(msg
);
2394 struct nlattr
*bands
[NL80211_BAND_ATTR_MAX
+ 1];
2395 struct nlattr
*freqs
[NL80211_FREQUENCY_ATTR_MAX
+ 1];
2396 struct nlattr
*band
, *freq
;
2398 static struct nla_policy freq_policy
[NL80211_FREQUENCY_ATTR_MAX
+ 1] = {
2399 [NL80211_FREQUENCY_ATTR_FREQ
] = { .type
= NLA_U32
},
2400 [NL80211_FREQUENCY_ATTR_DISABLED
] = { .type
= NLA_FLAG
},
2401 [NL80211_FREQUENCY_ATTR_PASSIVE_SCAN
] = { .type
= NLA_FLAG
},
2402 [NL80211_FREQUENCY_ATTR_NO_IBSS
] = { .type
= NLA_FLAG
},
2403 [NL80211_FREQUENCY_ATTR_RADAR
] = { .type
= NLA_FLAG
},
2404 [NL80211_FREQUENCY_ATTR_MAX_TX_POWER
] = { .type
= NLA_U32
},
2407 ch_cur
= *dbm_max
; /* value int* is initialized with channel by caller */
2410 nla_for_each_nested(band
, attr
[NL80211_ATTR_WIPHY_BANDS
], bands_remain
)
2412 nla_parse(bands
, NL80211_BAND_ATTR_MAX
, nla_data(band
),
2413 nla_len(band
), NULL
);
2415 nla_for_each_nested(freq
, bands
[NL80211_BAND_ATTR_FREQS
], freqs_remain
)
2417 nla_parse(freqs
, NL80211_FREQUENCY_ATTR_MAX
,
2418 nla_data(freq
), nla_len(freq
), freq_policy
);
2420 ch_cmp
= nl80211_freq2channel(nla_get_u32(
2421 freqs
[NL80211_FREQUENCY_ATTR_FREQ
]));
2423 if ((!ch_cur
|| (ch_cmp
== ch_cur
)) &&
2424 freqs
[NL80211_FREQUENCY_ATTR_MAX_TX_POWER
])
2426 *dbm_max
= (int)(0.01 * nla_get_u32(
2427 freqs
[NL80211_FREQUENCY_ATTR_MAX_TX_POWER
]));
2437 static int nl80211_get_txpwrlist(const char *ifname
, char *buf
, int *len
)
2440 int dbm_max
= -1, dbm_cur
, dbm_cnt
;
2441 struct iwinfo_txpwrlist_entry entry
;
2443 if (nl80211_get_channel(ifname
, &ch_cur
))
2446 /* initialize the value pointer with channel for callback */
2449 err
= nl80211_request(ifname
, NL80211_CMD_GET_WIPHY
, 0,
2450 nl80211_get_txpwrlist_cb
, &dbm_max
);
2454 for (dbm_cur
= 0, dbm_cnt
= 0;
2456 dbm_cur
++, dbm_cnt
++)
2458 entry
.dbm
= dbm_cur
;
2459 entry
.mw
= iwinfo_dbm2mw(dbm_cur
);
2461 memcpy(&buf
[dbm_cnt
* sizeof(entry
)], &entry
, sizeof(entry
));
2464 entry
.dbm
= dbm_max
;
2465 entry
.mw
= iwinfo_dbm2mw(dbm_max
);
2467 memcpy(&buf
[dbm_cnt
* sizeof(entry
)], &entry
, sizeof(entry
));
2470 *len
= dbm_cnt
* sizeof(entry
);
2477 static void nl80211_get_scancrypto(char *spec
, struct iwinfo_crypto_entry
*c
)
2479 int wpa_version
= 0;
2480 char *p
, *q
, *proto
, *suites
;
2484 for (p
= strtok_r(spec
, "[]", &q
); p
; p
= strtok_r(NULL
, "[]", &q
)) {
2485 if (!strcmp(p
, "WEP")) {
2487 c
->auth_suites
= IWINFO_KMGMT_NONE
;
2488 c
->auth_algs
= IWINFO_AUTH_OPEN
| IWINFO_AUTH_SHARED
;
2489 c
->pair_ciphers
= IWINFO_CIPHER_WEP40
| IWINFO_CIPHER_WEP104
;
2493 proto
= strtok(p
, "-");
2494 suites
= strtok(NULL
, "]");
2496 if (!proto
|| !suites
)
2499 if (!strcmp(proto
, "WPA2") || !strcmp(proto
, "RSN"))
2501 else if (!strcmp(proto
, "WPA"))
2508 parse_wpa_suites(suites
, wpa_version
, &c
->wpa_version
, &c
->auth_suites
);
2509 parse_wpa_ciphers(suites
, &c
->pair_ciphers
);
2514 struct nl80211_scanlist
{
2515 struct iwinfo_scanlist_entry
*e
;
2520 static void nl80211_get_scanlist_ie(struct nlattr
**bss
,
2521 struct iwinfo_scanlist_entry
*e
)
2523 int ielen
= nla_len(bss
[NL80211_BSS_INFORMATION_ELEMENTS
]);
2524 unsigned char *ie
= nla_data(bss
[NL80211_BSS_INFORMATION_ELEMENTS
]);
2525 static unsigned char ms_oui
[3] = { 0x00, 0x50, 0xf2 };
2528 while (ielen
>= 2 && ielen
>= ie
[1])
2533 case 114: /* Mesh ID */
2534 if (e
->ssid
[0] == 0) {
2535 len
= min(ie
[1], IWINFO_ESSID_MAX_SIZE
);
2536 memcpy(e
->ssid
, ie
+ 2, len
);
2542 iwinfo_parse_rsn(&e
->crypto
, ie
+ 2, ie
[1],
2543 IWINFO_CIPHER_CCMP
, IWINFO_KMGMT_8021x
);
2546 case 221: /* Vendor */
2547 if (ie
[1] >= 4 && !memcmp(ie
+ 2, ms_oui
, 3) && ie
[5] == 1)
2548 iwinfo_parse_rsn(&e
->crypto
, ie
+ 6, ie
[1] - 4,
2549 IWINFO_CIPHER_TKIP
, IWINFO_KMGMT_PSK
);
2551 case 61: /* HT oeration */
2553 e
->ht_chan_info
.primary_chan
= ie
[2];
2554 e
->ht_chan_info
.secondary_chan_off
= ie
[3] & 0x3;
2555 e
->ht_chan_info
.chan_width
= (ie
[4] & 0x4)>>2;
2558 case 192: /* VHT operation */
2560 e
->vht_chan_info
.chan_width
= ie
[2];
2561 e
->vht_chan_info
.center_chan_1
= ie
[3];
2562 e
->vht_chan_info
.center_chan_2
= ie
[4];
2572 static int nl80211_get_scanlist_cb(struct nl_msg
*msg
, void *arg
)
2577 struct nl80211_scanlist
*sl
= arg
;
2578 struct nlattr
**tb
= nl80211_parse(msg
);
2579 struct nlattr
*bss
[NL80211_BSS_MAX
+ 1];
2581 static struct nla_policy bss_policy
[NL80211_BSS_MAX
+ 1] = {
2582 [NL80211_BSS_TSF
] = { .type
= NLA_U64
},
2583 [NL80211_BSS_FREQUENCY
] = { .type
= NLA_U32
},
2584 [NL80211_BSS_BSSID
] = { 0 },
2585 [NL80211_BSS_BEACON_INTERVAL
] = { .type
= NLA_U16
},
2586 [NL80211_BSS_CAPABILITY
] = { .type
= NLA_U16
},
2587 [NL80211_BSS_INFORMATION_ELEMENTS
] = { 0 },
2588 [NL80211_BSS_SIGNAL_MBM
] = { .type
= NLA_U32
},
2589 [NL80211_BSS_SIGNAL_UNSPEC
] = { .type
= NLA_U8
},
2590 [NL80211_BSS_STATUS
] = { .type
= NLA_U32
},
2591 [NL80211_BSS_SEEN_MS_AGO
] = { .type
= NLA_U32
},
2592 [NL80211_BSS_BEACON_IES
] = { 0 },
2595 if (!tb
[NL80211_ATTR_BSS
] ||
2596 nla_parse_nested(bss
, NL80211_BSS_MAX
, tb
[NL80211_ATTR_BSS
],
2598 !bss
[NL80211_BSS_BSSID
])
2603 if (bss
[NL80211_BSS_CAPABILITY
])
2604 caps
= nla_get_u16(bss
[NL80211_BSS_CAPABILITY
]);
2608 memset(sl
->e
, 0, sizeof(*sl
->e
));
2609 memcpy(sl
->e
->mac
, nla_data(bss
[NL80211_BSS_BSSID
]), 6);
2612 sl
->e
->mode
= IWINFO_OPMODE_ADHOC
;
2613 else if (caps
& (1<<0))
2614 sl
->e
->mode
= IWINFO_OPMODE_MASTER
;
2616 sl
->e
->mode
= IWINFO_OPMODE_MESHPOINT
;
2619 sl
->e
->crypto
.enabled
= 1;
2621 if (bss
[NL80211_BSS_FREQUENCY
])
2622 sl
->e
->channel
= nl80211_freq2channel(nla_get_u32(
2623 bss
[NL80211_BSS_FREQUENCY
]));
2625 if (bss
[NL80211_BSS_INFORMATION_ELEMENTS
])
2626 nl80211_get_scanlist_ie(bss
, sl
->e
);
2628 if (bss
[NL80211_BSS_SIGNAL_MBM
])
2631 (uint8_t)((int32_t)nla_get_u32(bss
[NL80211_BSS_SIGNAL_MBM
]) / 100);
2633 rssi
= sl
->e
->signal
- 0x100;
2637 else if (rssi
> -40)
2640 sl
->e
->quality
= (rssi
+ 110);
2641 sl
->e
->quality_max
= 70;
2644 if (sl
->e
->crypto
.enabled
&& !sl
->e
->crypto
.wpa_version
)
2646 sl
->e
->crypto
.auth_algs
= IWINFO_AUTH_OPEN
| IWINFO_AUTH_SHARED
;
2647 sl
->e
->crypto
.pair_ciphers
= IWINFO_CIPHER_WEP40
| IWINFO_CIPHER_WEP104
;
2656 static int nl80211_get_scanlist_nl(const char *ifname
, char *buf
, int *len
)
2658 struct nl80211_scanlist sl
= { .e
= (struct iwinfo_scanlist_entry
*)buf
};
2660 if (nl80211_request(ifname
, NL80211_CMD_TRIGGER_SCAN
, 0, NULL
, NULL
))
2663 if (nl80211_wait("nl80211", "scan",
2664 NL80211_CMD_NEW_SCAN_RESULTS
, NL80211_CMD_SCAN_ABORTED
))
2667 if (nl80211_request(ifname
, NL80211_CMD_GET_SCAN
, NLM_F_DUMP
,
2668 nl80211_get_scanlist_cb
, &sl
))
2671 *len
= sl
.len
* sizeof(struct iwinfo_scanlist_entry
);
2679 static int wpasupp_ssid_decode(const char *in
, char *out
, int outlen
)
2682 (((x) >= 'a') ? ((x) - 'a' + 10) : \
2683 (((x) >= 'A') ? ((x) - 'A' + 10) : ((x) - '0')))
2689 if (len
+ 1 >= outlen
)
2699 out
[len
++] = '\n'; in
++;
2703 out
[len
++] = '\r'; in
++;
2707 out
[len
++] = '\t'; in
++;
2711 out
[len
++] = '\033'; in
++;
2715 if (isxdigit(*(in
+1)) && isxdigit(*(in
+2)))
2716 out
[len
++] = hex(*(in
+1)) * 16 + hex(*(in
+2));
2738 static int nl80211_get_scanlist_wpactl(const char *ifname
, char *buf
, int *len
)
2740 int sock
, qmax
, rssi
, tries
, count
= -1, ready
= 0;
2741 char *pos
, *line
, *bssid
, *freq
, *signal
, *flags
, *ssid
, reply
[4096];
2742 struct sockaddr_un local
= { 0 };
2743 struct iwinfo_scanlist_entry
*e
= (struct iwinfo_scanlist_entry
*)buf
;
2745 sock
= nl80211_wpactl_connect(ifname
, &local
);
2750 send(sock
, "ATTACH", 6, 0);
2751 send(sock
, "SCAN", 4, 0);
2754 * wait for scan results:
2755 * nl80211_wpactl_recv() will use a timeout of 256ms and we need to scan
2756 * 72 channels at most. We'll also receive two "OK" messages acknowledging
2757 * the "ATTACH" and "SCAN" commands and the driver might need a bit extra
2758 * time to process the results, so try 72 + 2 + 1 times.
2760 for (tries
= 0; tries
< 75; tries
++)
2762 if (nl80211_wpactl_recv(sock
, reply
, sizeof(reply
)) <= 0)
2765 /* got an event notification */
2766 if (reply
[0] == '<')
2768 /* scan results are ready */
2769 if (strstr(reply
, "CTRL-EVENT-SCAN-RESULTS"))
2771 /* send "SCAN_RESULTS" command */
2772 ready
= (send(sock
, "SCAN_RESULTS", 12, 0) == 12);
2776 /* is another unrelated event, retry */
2780 /* scanning already in progress, keep awaiting results */
2781 else if (!strcmp(reply
, "FAIL-BUSY\n"))
2786 /* another failure, abort */
2787 else if (!strncmp(reply
, "FAIL-", 5))
2793 /* receive and parse scan results if the wait above didn't time out */
2794 while (ready
&& nl80211_wpactl_recv(sock
, reply
, sizeof(reply
)) > 0)
2796 /* received an event notification, receive again */
2797 if (reply
[0] == '<')
2800 nl80211_get_quality_max(ifname
, &qmax
);
2802 for (line
= strtok_r(reply
, "\n", &pos
);
2804 line
= strtok_r(NULL
, "\n", &pos
))
2806 /* skip header line */
2813 bssid
= strtok(line
, "\t");
2814 freq
= strtok(NULL
, "\t");
2815 signal
= strtok(NULL
, "\t");
2816 flags
= strtok(NULL
, "\t");
2817 ssid
= strtok(NULL
, "\n");
2819 if (!bssid
|| !freq
|| !signal
|| !flags
)
2823 e
->mac
[0] = strtol(&bssid
[0], NULL
, 16);
2824 e
->mac
[1] = strtol(&bssid
[3], NULL
, 16);
2825 e
->mac
[2] = strtol(&bssid
[6], NULL
, 16);
2826 e
->mac
[3] = strtol(&bssid
[9], NULL
, 16);
2827 e
->mac
[4] = strtol(&bssid
[12], NULL
, 16);
2828 e
->mac
[5] = strtol(&bssid
[15], NULL
, 16);
2832 wpasupp_ssid_decode(ssid
, e
->ssid
, sizeof(e
->ssid
));
2837 if (strstr(flags
, "[MESH]"))
2838 e
->mode
= IWINFO_OPMODE_MESHPOINT
;
2839 else if (strstr(flags
, "[IBSS]"))
2840 e
->mode
= IWINFO_OPMODE_ADHOC
;
2842 e
->mode
= IWINFO_OPMODE_MASTER
;
2845 e
->channel
= nl80211_freq2channel(atoi(freq
));
2848 rssi
= atoi(signal
);
2854 /* The cfg80211 wext compat layer assumes a signal range
2855 * of -110 dBm to -40 dBm, the quality value is derived
2856 * by adding 110 to the signal level */
2859 else if (rssi
> -40)
2862 e
->quality
= (rssi
+ 110);
2870 e
->quality_max
= qmax
;
2873 nl80211_get_scancrypto(flags
, &e
->crypto
);
2879 *len
= count
* sizeof(struct iwinfo_scanlist_entry
);
2884 unlink(local
.sun_path
);
2886 return (count
>= 0) ? 0 : -1;
2889 static int nl80211_get_scanlist(const char *ifname
, char *buf
, int *len
)
2896 /* Got a radioX pseudo interface, find some interface on it or create one */
2897 if (!strncmp(ifname
, "radio", 5))
2899 /* Reuse existing interface */
2900 if ((res
= nl80211_phy2ifname(ifname
)) != NULL
)
2902 return nl80211_get_scanlist(res
, buf
, len
);
2905 /* Need to spawn a temporary iface for scanning */
2906 else if ((res
= nl80211_ifadd(ifname
)) != NULL
)
2908 rv
= nl80211_get_scanlist(res
, buf
, len
);
2914 /* WPA supplicant */
2915 if (!nl80211_get_scanlist_wpactl(ifname
, buf
, len
))
2920 /* station / ad-hoc / monitor scan */
2921 else if (!nl80211_get_mode(ifname
, &mode
) &&
2922 (mode
== IWINFO_OPMODE_ADHOC
||
2923 mode
== IWINFO_OPMODE_MASTER
||
2924 mode
== IWINFO_OPMODE_CLIENT
||
2925 mode
== IWINFO_OPMODE_MONITOR
) &&
2926 iwinfo_ifup(ifname
))
2928 return nl80211_get_scanlist_nl(ifname
, buf
, len
);
2934 /* Got a temp interface, don't create yet another one */
2935 if (!strncmp(ifname
, "tmp.", 4))
2937 if (!iwinfo_ifup(ifname
))
2940 rv
= nl80211_get_scanlist_nl(ifname
, buf
, len
);
2941 iwinfo_ifdown(ifname
);
2945 /* Spawn a new scan interface */
2948 if (!(res
= nl80211_ifadd(ifname
)))
2953 /* if we can take the new interface up, the driver supports an
2954 * additional interface and there's no need to tear down the ap */
2955 if (iwinfo_ifup(res
))
2957 rv
= nl80211_get_scanlist_nl(res
, buf
, len
);
2961 /* driver cannot create secondary interface, take down ap
2963 else if (iwinfo_ifdown(ifname
) && iwinfo_ifup(res
))
2965 rv
= nl80211_get_scanlist_nl(res
, buf
, len
);
2967 iwinfo_ifup(ifname
);
2968 nl80211_hostapd_hup(ifname
);
2981 static int nl80211_get_freqlist_cb(struct nl_msg
*msg
, void *arg
)
2983 int bands_remain
, freqs_remain
;
2985 struct nl80211_array_buf
*arr
= arg
;
2986 struct iwinfo_freqlist_entry
*e
;
2988 struct nlattr
**attr
= nl80211_parse(msg
);
2989 struct nlattr
*bands
[NL80211_BAND_ATTR_MAX
+ 1];
2990 struct nlattr
*freqs
[NL80211_FREQUENCY_ATTR_MAX
+ 1];
2991 struct nlattr
*band
, *freq
;
2996 if (attr
[NL80211_ATTR_WIPHY_BANDS
]) {
2997 nla_for_each_nested(band
, attr
[NL80211_ATTR_WIPHY_BANDS
], bands_remain
)
2999 nla_parse(bands
, NL80211_BAND_ATTR_MAX
,
3000 nla_data(band
), nla_len(band
), NULL
);
3002 if (bands
[NL80211_BAND_ATTR_FREQS
]) {
3003 nla_for_each_nested(freq
, bands
[NL80211_BAND_ATTR_FREQS
], freqs_remain
)
3005 nla_parse(freqs
, NL80211_FREQUENCY_ATTR_MAX
,
3006 nla_data(freq
), nla_len(freq
), NULL
);
3008 if (!freqs
[NL80211_FREQUENCY_ATTR_FREQ
] ||
3009 freqs
[NL80211_FREQUENCY_ATTR_DISABLED
])
3012 e
->mhz
= nla_get_u32(freqs
[NL80211_FREQUENCY_ATTR_FREQ
]);
3013 e
->channel
= nl80211_freq2channel(e
->mhz
);
3016 freqs
[NL80211_FREQUENCY_ATTR_NO_IR
] &&
3017 !freqs
[NL80211_FREQUENCY_ATTR_RADAR
]
3020 if (freqs
[NL80211_FREQUENCY_ATTR_NO_HT40_MINUS
])
3021 e
->flags
|= IWINFO_FREQ_NO_HT40MINUS
;
3022 if (freqs
[NL80211_FREQUENCY_ATTR_NO_HT40_PLUS
])
3023 e
->flags
|= IWINFO_FREQ_NO_HT40PLUS
;
3024 if (freqs
[NL80211_FREQUENCY_ATTR_NO_80MHZ
])
3025 e
->flags
|= IWINFO_FREQ_NO_80MHZ
;
3026 if (freqs
[NL80211_FREQUENCY_ATTR_NO_160MHZ
])
3027 e
->flags
|= IWINFO_FREQ_NO_160MHZ
;
3028 if (freqs
[NL80211_FREQUENCY_ATTR_NO_20MHZ
])
3029 e
->flags
|= IWINFO_FREQ_NO_20MHZ
;
3030 if (freqs
[NL80211_FREQUENCY_ATTR_NO_10MHZ
])
3031 e
->flags
|= IWINFO_FREQ_NO_10MHZ
;
3032 if (freqs
[NL80211_FREQUENCY_ATTR_NO_HE
])
3033 e
->flags
|= IWINFO_FREQ_NO_HE
;
3045 static int nl80211_get_freqlist(const char *ifname
, char *buf
, int *len
)
3047 struct nl80211_msg_conveyor
*cv
;
3048 struct nl80211_array_buf arr
= { .buf
= buf
, .count
= 0 };
3049 uint32_t features
= nl80211_get_protocol_features(ifname
);
3052 flags
= features
& NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP
? NLM_F_DUMP
: 0;
3053 cv
= nl80211_msg(ifname
, NL80211_CMD_GET_WIPHY
, flags
);
3057 NLA_PUT_FLAG(cv
->msg
, NL80211_ATTR_SPLIT_WIPHY_DUMP
);
3058 if (nl80211_send(cv
, nl80211_get_freqlist_cb
, &arr
))
3061 *len
= arr
.count
* sizeof(struct iwinfo_freqlist_entry
);
3071 static int nl80211_get_country_cb(struct nl_msg
*msg
, void *arg
)
3074 struct nlattr
**attr
= nl80211_parse(msg
);
3076 if (attr
[NL80211_ATTR_REG_ALPHA2
])
3077 memcpy(buf
, nla_data(attr
[NL80211_ATTR_REG_ALPHA2
]), 2);
3084 static int nl80211_get_country(const char *ifname
, char *buf
)
3086 if (nl80211_request(ifname
, NL80211_CMD_GET_REG
, 0,
3087 nl80211_get_country_cb
, buf
))
3093 static int nl80211_get_countrylist(const char *ifname
, char *buf
, int *len
)
3096 struct iwinfo_country_entry
*e
= (struct iwinfo_country_entry
*)buf
;
3097 const struct iwinfo_iso3166_label
*l
;
3099 for (l
= IWINFO_ISO3166_NAMES
, count
= 0; l
->iso3166
; l
++, e
++, count
++)
3101 e
->iso3166
= l
->iso3166
;
3102 e
->ccode
[0] = (l
->iso3166
/ 256);
3103 e
->ccode
[1] = (l
->iso3166
% 256);
3107 *len
= (count
* sizeof(struct iwinfo_country_entry
));
3112 struct nl80211_modes
3122 uint16_t he_phy_cap
[6];
3125 static void nl80211_eval_modelist(struct nl80211_modes
*m
)
3127 /* Treat any nonzero capability as 11n */
3130 m
->hw
|= IWINFO_80211_N
;
3131 m
->ht
|= IWINFO_HTMODE_HT20
;
3133 if (m
->nl_ht
& (1 << 1))
3134 m
->ht
|= IWINFO_HTMODE_HT40
;
3137 if (m
->he_phy_cap
[0] != 0) {
3138 m
->hw
|= IWINFO_80211_AX
;
3139 m
->ht
|= IWINFO_HTMODE_HE20
;
3141 if (m
->he_phy_cap
[0] & BIT(9))
3142 m
->ht
|= IWINFO_HTMODE_HE40
;
3143 if (m
->he_phy_cap
[0] & BIT(10))
3144 m
->ht
|= IWINFO_HTMODE_HE40
| IWINFO_HTMODE_HE80
;
3145 if (m
->he_phy_cap
[0] & BIT(11))
3146 m
->ht
|= IWINFO_HTMODE_HE160
;
3147 if (m
->he_phy_cap
[0] & BIT(12))
3148 m
->ht
|= IWINFO_HTMODE_HE160
| IWINFO_HTMODE_HE80_80
;
3151 if (m
->bands
& IWINFO_BAND_24
)
3153 m
->hw
|= IWINFO_80211_B
;
3154 m
->hw
|= IWINFO_80211_G
;
3157 if (m
->bands
& IWINFO_BAND_5
)
3159 /* Treat any nonzero capability as 11ac */
3162 m
->hw
|= IWINFO_80211_AC
;
3163 m
->ht
|= IWINFO_HTMODE_VHT20
| IWINFO_HTMODE_VHT40
| IWINFO_HTMODE_VHT80
;
3165 switch ((m
->nl_vht
>> 2) & 3)
3168 m
->ht
|= IWINFO_HTMODE_VHT80_80
;
3172 m
->ht
|= IWINFO_HTMODE_VHT160
;
3177 m
->hw
|= IWINFO_80211_A
;
3181 if (m
->bands
& IWINFO_BAND_60
)
3183 m
->hw
|= IWINFO_80211_AD
;
3188 static int nl80211_get_modelist_cb(struct nl_msg
*msg
, void *arg
)
3190 struct nl80211_modes
*m
= arg
;
3192 struct nlattr
**attr
= nl80211_parse(msg
);
3193 struct nlattr
*bands
[NL80211_BAND_ATTR_MAX
+ 1];
3194 struct nlattr
*band
;
3196 if (attr
[NL80211_ATTR_WIPHY_BANDS
])
3198 nla_for_each_nested(band
, attr
[NL80211_ATTR_WIPHY_BANDS
], bands_remain
)
3200 m
->bands
|= nl80211_get_band(band
->nla_type
);
3202 nla_parse(bands
, NL80211_BAND_ATTR_MAX
,
3203 nla_data(band
), nla_len(band
), NULL
);
3205 if (bands
[NL80211_BAND_ATTR_HT_CAPA
])
3206 m
->nl_ht
= nla_get_u16(bands
[NL80211_BAND_ATTR_HT_CAPA
]);
3208 if (bands
[NL80211_BAND_ATTR_VHT_CAPA
])
3209 m
->nl_vht
= nla_get_u32(bands
[NL80211_BAND_ATTR_VHT_CAPA
]);
3211 if (bands
[NL80211_BAND_ATTR_IFTYPE_DATA
]) {
3212 struct nlattr
*tb
[NL80211_BAND_IFTYPE_ATTR_MAX
+ 1];
3213 struct nlattr
*nl_iftype
;
3217 nla_for_each_nested(nl_iftype
, bands
[NL80211_BAND_ATTR_IFTYPE_DATA
], rem_band
) {
3218 nla_parse(tb
, NL80211_BAND_IFTYPE_ATTR_MAX
,
3219 nla_data(nl_iftype
), nla_len(nl_iftype
), NULL
);
3220 if (tb
[NL80211_BAND_IFTYPE_ATTR_HE_CAP_PHY
]) {
3221 len
= nla_len(tb
[NL80211_BAND_IFTYPE_ATTR_HE_CAP_PHY
]);
3223 if (len
> sizeof(m
->he_phy_cap
) - 1)
3224 len
= sizeof(m
->he_phy_cap
) - 1;
3225 memcpy(&((__u8
*)m
->he_phy_cap
)[1],
3226 nla_data(tb
[NL80211_BAND_IFTYPE_ATTR_HE_CAP_PHY
]),
3239 static int nl80211_get_hwmodelist(const char *ifname
, int *buf
)
3241 struct nl80211_msg_conveyor
*cv
;
3242 struct nl80211_modes m
= {};
3243 uint32_t features
= nl80211_get_protocol_features(ifname
);
3246 flags
= features
& NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP
? NLM_F_DUMP
: 0;
3247 cv
= nl80211_msg(ifname
, NL80211_CMD_GET_WIPHY
, flags
);
3251 NLA_PUT_FLAG(cv
->msg
, NL80211_ATTR_SPLIT_WIPHY_DUMP
);
3252 if (nl80211_send(cv
, nl80211_get_modelist_cb
, &m
))
3253 goto nla_put_failure
;
3255 nl80211_eval_modelist(&m
);
3272 static int nl80211_get_htmode_cb(struct nl_msg
*msg
, void *arg
)
3274 struct nlattr
**tb
= nl80211_parse(msg
);
3276 struct chan_info
*chn
= arg
;
3278 if ((cur
= tb
[NL80211_ATTR_CHANNEL_WIDTH
]))
3279 chn
->width
= nla_get_u32(cur
);
3281 if ((cur
= tb
[NL80211_ATTR_BSS_HT_OPMODE
]))
3282 chn
->mode
= nla_get_u32(cur
);
3287 static int nl80211_get_htmode(const char *ifname
, int *buf
)
3289 struct chan_info chn
= { 0 };
3290 char *res
, b
[2] = { 0 };
3294 res
= nl80211_phy2ifname(ifname
);
3297 err
= nl80211_request(res
? res
: ifname
,
3298 NL80211_CMD_GET_INTERFACE
, 0,
3299 nl80211_get_htmode_cb
, &chn
);
3303 if (nl80211_hostapd_query(res
? res
: ifname
, "ieee80211ax", b
, sizeof(b
)))
3305 else if (nl80211_wpactl_query(res
? res
: ifname
, "wifi_generation", b
, sizeof(b
)))
3308 switch (chn
.width
) {
3309 case NL80211_CHAN_WIDTH_20
:
3311 *buf
= IWINFO_HTMODE_HE20
;
3312 else if (chn
.mode
== -1)
3313 *buf
= IWINFO_HTMODE_VHT20
;
3315 *buf
= IWINFO_HTMODE_HT20
;
3317 case NL80211_CHAN_WIDTH_40
:
3319 *buf
= IWINFO_HTMODE_HE40
;
3320 else if (chn
.mode
== -1)
3321 *buf
= IWINFO_HTMODE_VHT40
;
3323 *buf
= IWINFO_HTMODE_HT40
;
3325 case NL80211_CHAN_WIDTH_80
:
3327 *buf
= IWINFO_HTMODE_HE80
;
3329 *buf
= IWINFO_HTMODE_VHT80
;
3331 case NL80211_CHAN_WIDTH_80P80
:
3333 *buf
= IWINFO_HTMODE_HE80_80
;
3335 *buf
= IWINFO_HTMODE_VHT80_80
;
3337 case NL80211_CHAN_WIDTH_160
:
3339 *buf
= IWINFO_HTMODE_HE160
;
3341 *buf
= IWINFO_HTMODE_VHT160
;
3343 case NL80211_CHAN_WIDTH_5
:
3344 case NL80211_CHAN_WIDTH_10
:
3345 case NL80211_CHAN_WIDTH_20_NOHT
:
3346 *buf
= IWINFO_HTMODE_NOHT
;
3355 static int nl80211_get_htmodelist(const char *ifname
, int *buf
)
3357 struct nl80211_msg_conveyor
*cv
;
3358 struct nl80211_modes m
= {};
3359 uint32_t features
= nl80211_get_protocol_features(ifname
);
3362 flags
= features
& NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP
? NLM_F_DUMP
: 0;
3363 cv
= nl80211_msg(ifname
, NL80211_CMD_GET_WIPHY
, flags
);
3367 NLA_PUT_FLAG(cv
->msg
, NL80211_ATTR_SPLIT_WIPHY_DUMP
);
3368 if (nl80211_send(cv
, nl80211_get_modelist_cb
, &m
))
3369 goto nla_put_failure
;
3371 nl80211_eval_modelist(&m
);
3384 static int nl80211_get_ifcomb_cb(struct nl_msg
*msg
, void *arg
)
3386 struct nlattr
**attr
= nl80211_parse(msg
);
3387 struct nlattr
*comb
;
3389 int comb_rem
, limit_rem
, mode_rem
;
3392 if (!attr
[NL80211_ATTR_INTERFACE_COMBINATIONS
])
3395 nla_for_each_nested(comb
, attr
[NL80211_ATTR_INTERFACE_COMBINATIONS
], comb_rem
)
3397 static struct nla_policy iface_combination_policy
[NUM_NL80211_IFACE_COMB
] = {
3398 [NL80211_IFACE_COMB_LIMITS
] = { .type
= NLA_NESTED
},
3399 [NL80211_IFACE_COMB_MAXNUM
] = { .type
= NLA_U32
},
3401 struct nlattr
*tb_comb
[NUM_NL80211_IFACE_COMB
+1];
3402 static struct nla_policy iface_limit_policy
[NUM_NL80211_IFACE_LIMIT
] = {
3403 [NL80211_IFACE_LIMIT_TYPES
] = { .type
= NLA_NESTED
},
3404 [NL80211_IFACE_LIMIT_MAX
] = { .type
= NLA_U32
},
3406 struct nlattr
*tb_limit
[NUM_NL80211_IFACE_LIMIT
+1];
3407 struct nlattr
*limit
;
3409 nla_parse_nested(tb_comb
, NUM_NL80211_IFACE_COMB
, comb
, iface_combination_policy
);
3411 if (!tb_comb
[NL80211_IFACE_COMB_LIMITS
])
3414 nla_for_each_nested(limit
, tb_comb
[NL80211_IFACE_COMB_LIMITS
], limit_rem
)
3416 struct nlattr
*mode
;
3418 nla_parse_nested(tb_limit
, NUM_NL80211_IFACE_LIMIT
, limit
, iface_limit_policy
);
3420 if (!tb_limit
[NL80211_IFACE_LIMIT_TYPES
] ||
3421 !tb_limit
[NL80211_IFACE_LIMIT_MAX
])
3424 if (nla_get_u32(tb_limit
[NL80211_IFACE_LIMIT_MAX
]) < 2)
3427 nla_for_each_nested(mode
, tb_limit
[NL80211_IFACE_LIMIT_TYPES
], mode_rem
) {
3428 if (nla_type(mode
) == NL80211_IFTYPE_AP
)
3437 static int nl80211_get_mbssid_support(const char *ifname
, int *buf
)
3439 if (nl80211_request(ifname
, NL80211_CMD_GET_WIPHY
, 0,
3440 nl80211_get_ifcomb_cb
, buf
))
3446 static int nl80211_hardware_id_from_fdt(struct iwinfo_hardware_id
*id
, const char *ifname
)
3448 char *phy
, path
[PATH_MAX
];
3450 /* Try to determine the phy name from the given interface */
3451 phy
= nl80211_ifname2phy(ifname
);
3453 snprintf(path
, sizeof(path
), "/sys/class/%s/%s/device/of_node/compatible",
3454 phy
? "ieee80211" : "net", phy
? phy
: ifname
);
3456 if (nl80211_readstr(path
, id
->compatible
, sizeof(id
->compatible
)) <= 0)
3463 static int nl80211_get_hardware_id(const char *ifname
, char *buf
)
3465 struct iwinfo_hardware_id
*id
= (struct iwinfo_hardware_id
*)buf
;
3466 char *phy
, num
[8], path
[PATH_MAX
];
3469 struct { const char *path
; uint16_t *dest
; } lookup
[] = {
3470 { "vendor", &id
->vendor_id
},
3471 { "device", &id
->device_id
},
3472 { "subsystem_vendor", &id
->subsystem_vendor_id
},
3473 { "subsystem_device", &id
->subsystem_device_id
},
3474 { "../idVendor", &id
->subsystem_vendor_id
},
3475 { "../idProduct", &id
->subsystem_device_id
}
3478 memset(id
, 0, sizeof(*id
));
3480 /* Try to determine the phy name from the given interface */
3481 phy
= nl80211_ifname2phy(ifname
);
3483 for (i
= 0; i
< ARRAY_SIZE(lookup
); i
++)
3485 snprintf(path
, sizeof(path
), "/sys/class/%s/%s/device/%s",
3486 phy
? "ieee80211" : "net",
3487 phy
? phy
: ifname
, lookup
[i
].path
);
3489 if (nl80211_readstr(path
, num
, sizeof(num
)) > 0)
3490 *lookup
[i
].dest
= strtoul(num
, NULL
, 16);
3493 /* Failed to obtain hardware PCI/USB IDs... */
3494 if (id
->vendor_id
== 0 && id
->device_id
== 0 &&
3495 id
->subsystem_vendor_id
== 0 && id
->subsystem_device_id
== 0)
3496 /* ... first fallback to FDT ... */
3497 if (nl80211_hardware_id_from_fdt(id
, ifname
) == -1)
3498 /* ... then board config */
3499 return iwinfo_hardware_id_from_mtd(id
);
3504 static const struct iwinfo_hardware_entry
*
3505 nl80211_get_hardware_entry(const char *ifname
)
3507 struct iwinfo_hardware_id id
;
3509 if (nl80211_get_hardware_id(ifname
, (char *)&id
))
3512 return iwinfo_hardware(&id
);
3515 static int nl80211_get_hardware_name(const char *ifname
, char *buf
)
3517 const struct iwinfo_hardware_entry
*hw
;
3519 if (!(hw
= nl80211_get_hardware_entry(ifname
)))
3520 sprintf(buf
, "Generic MAC80211");
3522 sprintf(buf
, "%s %s", hw
->vendor_name
, hw
->device_name
);
3527 static int nl80211_get_txpower_offset(const char *ifname
, int *buf
)
3529 const struct iwinfo_hardware_entry
*hw
;
3531 if (!(hw
= nl80211_get_hardware_entry(ifname
)))
3534 *buf
= hw
->txpower_offset
;
3538 static int nl80211_get_frequency_offset(const char *ifname
, int *buf
)
3540 const struct iwinfo_hardware_entry
*hw
;
3542 if (!(hw
= nl80211_get_hardware_entry(ifname
)))
3545 *buf
= hw
->frequency_offset
;
3549 static int nl80211_lookup_phyname(const char *section
, char *buf
)
3554 if (!strncmp(section
, "path=", 5))
3555 idx
= nl80211_phy_idx_from_path(section
+ 5);
3556 else if (!strncmp(section
, "macaddr=", 8))
3557 idx
= nl80211_phy_idx_from_macaddr(section
+ 8);
3559 idx
= nl80211_phy_idx_from_uci(section
);
3564 name
= nl80211_phyidx2name(idx
);
3572 static int nl80211_phy_path(const char *phyname
, const char **path
)
3574 if (strchr(phyname
, '/'))
3577 *path
= nl80211_phy_path_str(phyname
);
3584 const struct iwinfo_ops nl80211_ops
= {
3586 .probe
= nl80211_probe
,
3587 .channel
= nl80211_get_channel
,
3588 .center_chan1
= nl80211_get_center_chan1
,
3589 .center_chan2
= nl80211_get_center_chan2
,
3590 .frequency
= nl80211_get_frequency
,
3591 .frequency_offset
= nl80211_get_frequency_offset
,
3592 .txpower
= nl80211_get_txpower
,
3593 .txpower_offset
= nl80211_get_txpower_offset
,
3594 .bitrate
= nl80211_get_bitrate
,
3595 .signal
= nl80211_get_signal
,
3596 .noise
= nl80211_get_noise
,
3597 .quality
= nl80211_get_quality
,
3598 .quality_max
= nl80211_get_quality_max
,
3599 .mbssid_support
= nl80211_get_mbssid_support
,
3600 .hwmodelist
= nl80211_get_hwmodelist
,
3601 .htmodelist
= nl80211_get_htmodelist
,
3602 .htmode
= nl80211_get_htmode
,
3603 .mode
= nl80211_get_mode
,
3604 .ssid
= nl80211_get_ssid
,
3605 .bssid
= nl80211_get_bssid
,
3606 .country
= nl80211_get_country
,
3607 .hardware_id
= nl80211_get_hardware_id
,
3608 .hardware_name
= nl80211_get_hardware_name
,
3609 .encryption
= nl80211_get_encryption
,
3610 .phyname
= nl80211_get_phyname
,
3611 .assoclist
= nl80211_get_assoclist
,
3612 .txpwrlist
= nl80211_get_txpwrlist
,
3613 .scanlist
= nl80211_get_scanlist
,
3614 .freqlist
= nl80211_get_freqlist
,
3615 .countrylist
= nl80211_get_countrylist
,
3616 .survey
= nl80211_get_survey
,
3617 .lookup_phy
= nl80211_lookup_phyname
,
3618 .phy_path
= nl80211_phy_path
,
3619 .close
= nl80211_close