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.
28 #include "iwinfo_nl80211.h"
30 #define min(x, y) ((x) < (y)) ? (x) : (y)
32 static struct nl80211_state
*nls
= NULL
;
34 static void nl80211_close(void)
39 genl_family_put(nls
->nlctrl
);
42 genl_family_put(nls
->nl80211
);
45 nl_socket_free(nls
->nl_sock
);
48 nl_cache_free(nls
->nl_cache
);
55 static int nl80211_init(void)
61 nls
= malloc(sizeof(struct nl80211_state
));
67 memset(nls
, 0, sizeof(*nls
));
69 nls
->nl_sock
= nl_socket_alloc();
75 if (genl_connect(nls
->nl_sock
)) {
80 fd
= nl_socket_get_fd(nls
->nl_sock
);
81 if (fcntl(fd
, F_SETFD
, fcntl(fd
, F_GETFD
) | FD_CLOEXEC
) < 0) {
86 if (genl_ctrl_alloc_cache(nls
->nl_sock
, &nls
->nl_cache
)) {
91 nls
->nl80211
= genl_ctrl_search_by_name(nls
->nl_cache
, "nl80211");
97 nls
->nlctrl
= genl_ctrl_search_by_name(nls
->nl_cache
, "nlctrl");
112 static int nl80211_readint(const char *path
)
118 if ((fd
= open(path
, O_RDONLY
)) > -1)
120 if (read(fd
, buffer
, sizeof(buffer
)) > 0)
129 static int nl80211_readstr(const char *path
, char *buffer
, int length
)
134 if ((fd
= open(path
, O_RDONLY
)) > -1)
136 if ((rv
= read(fd
, buffer
, length
- 1)) > 0)
138 if (buffer
[rv
- 1] == '\n')
151 static int nl80211_msg_error(struct sockaddr_nl
*nla
,
152 struct nlmsgerr
*err
, void *arg
)
159 static int nl80211_msg_finish(struct nl_msg
*msg
, void *arg
)
166 static int nl80211_msg_ack(struct nl_msg
*msg
, void *arg
)
173 static int nl80211_msg_response(struct nl_msg
*msg
, void *arg
)
178 static void nl80211_free(struct nl80211_msg_conveyor
*cv
)
193 static struct nl80211_msg_conveyor
* nl80211_new(struct genl_family
*family
,
196 static struct nl80211_msg_conveyor cv
;
198 struct nl_msg
*req
= NULL
;
199 struct nl_cb
*cb
= NULL
;
205 cb
= nl_cb_alloc(NL_CB_DEFAULT
);
209 genlmsg_put(req
, 0, 0, genl_family_get_id(family
), 0, flags
, cmd
, 0);
227 static struct nl80211_msg_conveyor
* nl80211_ctl(int cmd
, int flags
)
229 if (nl80211_init() < 0)
232 return nl80211_new(nls
->nlctrl
, cmd
, flags
);
235 static int nl80211_phy_idx_from_uci_path(struct uci_section
*s
)
242 opt
= uci_lookup_option_string(uci_ctx
, s
, "path");
246 snprintf(buf
, sizeof(buf
), "/sys/devices/%s/ieee80211/*/index", opt
); /**/
247 if (glob(buf
, 0, NULL
, &gl
))
251 idx
= nl80211_readint(gl
.gl_pathv
[0]);
258 static int nl80211_phy_idx_from_uci_macaddr(struct uci_section
*s
)
265 opt
= uci_lookup_option_string(uci_ctx
, s
, "macaddr");
269 snprintf(buf
, sizeof(buf
), "/sys/class/ieee80211/*", opt
); /**/
270 if (glob(buf
, 0, NULL
, &gl
))
273 for (i
= 0; i
< gl
.gl_pathc
; i
++)
275 snprintf(buf
, sizeof(buf
), "%s/macaddress", gl
.gl_pathv
[i
]);
276 if (nl80211_readstr(buf
, buf
, sizeof(buf
)) <= 0)
279 if (fnmatch(opt
, buf
, FNM_CASEFOLD
))
282 snprintf(buf
, sizeof(buf
), "%s/index", gl
.gl_pathv
[i
]);
283 if ((idx
= nl80211_readint(buf
)) > -1)
292 static int nl80211_phy_idx_from_uci_phy(struct uci_section
*s
)
297 opt
= uci_lookup_option_string(uci_ctx
, s
, "phy");
301 snprintf(buf
, sizeof(buf
), "/sys/class/ieee80211/%s/index", opt
);
302 return nl80211_readint(buf
);
305 static int nl80211_phy_idx_from_uci(const char *name
)
307 struct uci_section
*s
;
310 s
= iwinfo_uci_get_radio(name
, "mac80211");
314 idx
= nl80211_phy_idx_from_uci_path(s
);
317 idx
= nl80211_phy_idx_from_uci_macaddr(s
);
320 idx
= nl80211_phy_idx_from_uci_phy(s
);
327 static struct nl80211_msg_conveyor
* nl80211_msg(const char *ifname
,
330 int ifidx
= -1, phyidx
= -1;
331 struct nl80211_msg_conveyor
*cv
;
336 if (nl80211_init() < 0)
339 if (!strncmp(ifname
, "phy", 3))
340 phyidx
= atoi(&ifname
[3]);
341 else if (!strncmp(ifname
, "radio", 5))
342 phyidx
= nl80211_phy_idx_from_uci(ifname
);
343 else if (!strncmp(ifname
, "mon.", 4))
344 ifidx
= if_nametoindex(&ifname
[4]);
346 ifidx
= if_nametoindex(ifname
);
348 /* Valid ifidx must be greater than 0 */
349 if ((ifidx
<= 0) && (phyidx
< 0))
352 cv
= nl80211_new(nls
->nl80211
, cmd
, flags
);
357 NLA_PUT_U32(cv
->msg
, NL80211_ATTR_IFINDEX
, ifidx
);
360 NLA_PUT_U32(cv
->msg
, NL80211_ATTR_WIPHY
, phyidx
);
369 static struct nl80211_msg_conveyor
* nl80211_send(
370 struct nl80211_msg_conveyor
*cv
,
371 int (*cb_func
)(struct nl_msg
*, void *), void *cb_arg
373 static struct nl80211_msg_conveyor rcv
;
377 nl_cb_set(cv
->cb
, NL_CB_VALID
, NL_CB_CUSTOM
, cb_func
, cb_arg
);
379 nl_cb_set(cv
->cb
, NL_CB_VALID
, NL_CB_CUSTOM
, nl80211_msg_response
, &rcv
);
381 if (nl_send_auto_complete(nls
->nl_sock
, cv
->msg
) < 0)
384 nl_cb_err(cv
->cb
, NL_CB_CUSTOM
, nl80211_msg_error
, &err
);
385 nl_cb_set(cv
->cb
, NL_CB_FINISH
, NL_CB_CUSTOM
, nl80211_msg_finish
, &err
);
386 nl_cb_set(cv
->cb
, NL_CB_ACK
, NL_CB_CUSTOM
, nl80211_msg_ack
, &err
);
389 nl_recvmsgs(nls
->nl_sock
, cv
->cb
);
400 static struct nlattr
** nl80211_parse(struct nl_msg
*msg
)
402 struct genlmsghdr
*gnlh
= nlmsg_data(nlmsg_hdr(msg
));
403 static struct nlattr
*attr
[NL80211_ATTR_MAX
+ 1];
405 nla_parse(attr
, NL80211_ATTR_MAX
, genlmsg_attrdata(gnlh
, 0),
406 genlmsg_attrlen(gnlh
, 0), NULL
);
412 static int nl80211_subscribe_cb(struct nl_msg
*msg
, void *arg
)
414 struct nl80211_group_conveyor
*cv
= arg
;
416 struct nlattr
**attr
= nl80211_parse(msg
);
417 struct nlattr
*mgrpinfo
[CTRL_ATTR_MCAST_GRP_MAX
+ 1];
421 if (!attr
[CTRL_ATTR_MCAST_GROUPS
])
424 nla_for_each_nested(mgrp
, attr
[CTRL_ATTR_MCAST_GROUPS
], mgrpidx
)
426 nla_parse(mgrpinfo
, CTRL_ATTR_MCAST_GRP_MAX
,
427 nla_data(mgrp
), nla_len(mgrp
), NULL
);
429 if (mgrpinfo
[CTRL_ATTR_MCAST_GRP_ID
] &&
430 mgrpinfo
[CTRL_ATTR_MCAST_GRP_NAME
] &&
431 !strncmp(nla_data(mgrpinfo
[CTRL_ATTR_MCAST_GRP_NAME
]),
432 cv
->name
, nla_len(mgrpinfo
[CTRL_ATTR_MCAST_GRP_NAME
])))
434 cv
->id
= nla_get_u32(mgrpinfo
[CTRL_ATTR_MCAST_GRP_ID
]);
442 static int nl80211_subscribe(const char *family
, const char *group
)
444 struct nl80211_group_conveyor cv
= { .name
= group
, .id
= -ENOENT
};
445 struct nl80211_msg_conveyor
*req
;
447 req
= nl80211_ctl(CTRL_CMD_GETFAMILY
, 0);
450 NLA_PUT_STRING(req
->msg
, CTRL_ATTR_FAMILY_NAME
, family
);
451 nl80211_send(req
, nl80211_subscribe_cb
, &cv
);
457 return nl_socket_add_membership(nls
->nl_sock
, cv
.id
);
461 static int nl80211_wait_cb(struct nl_msg
*msg
, void *arg
)
463 struct nl80211_event_conveyor
*cv
= arg
;
464 struct genlmsghdr
*gnlh
= nlmsg_data(nlmsg_hdr(msg
));
466 if (gnlh
->cmd
== cv
->wait
)
467 cv
->recv
= gnlh
->cmd
;
472 static int nl80211_wait_seq_check(struct nl_msg
*msg
, void *arg
)
477 static int nl80211_wait(const char *family
, const char *group
, int cmd
)
479 struct nl80211_event_conveyor cv
= { .wait
= cmd
};
482 if (nl80211_subscribe(family
, group
))
485 cb
= nl_cb_alloc(NL_CB_DEFAULT
);
490 nl_cb_set(cb
, NL_CB_SEQ_CHECK
, NL_CB_CUSTOM
, nl80211_wait_seq_check
, NULL
);
491 nl_cb_set(cb
, NL_CB_VALID
, NL_CB_CUSTOM
, nl80211_wait_cb
, &cv
);
494 nl_recvmsgs(nls
->nl_sock
, cb
);
502 static int nl80211_freq2channel(int freq
)
506 else if (freq
< 2484)
507 return (freq
- 2407) / 5;
508 else if (freq
>= 4910 && freq
<= 4980)
509 return (freq
- 4000) / 5;
511 return (freq
- 5000) / 5;
514 static int nl80211_channel2freq(int channel
, const char *band
)
516 if (!band
|| band
[0] != 'a')
520 else if (channel
< 14)
521 return (channel
* 5) + 2407;
525 if (channel
>= 182 && channel
<= 196)
526 return (channel
* 5) + 4000;
528 return (channel
* 5) + 5000;
534 static char * nl80211_getval(const char *ifname
, const char *buf
, const char *key
)
537 char lkey
[64] = { 0 };
538 const char *ln
= buf
;
539 static char lval
[256] = { 0 };
541 int matched_if
= ifname
? 0 : 1;
544 for( i
= 0, len
= strlen(buf
); i
< len
; i
++ )
546 if (!lkey
[0] && (buf
[i
] == ' ' || buf
[i
] == '\t'))
550 else if (!lkey
[0] && (buf
[i
] == '='))
552 if ((&buf
[i
] - ln
) > 0)
553 memcpy(lkey
, ln
, min(sizeof(lkey
) - 1, &buf
[i
] - ln
));
555 else if (buf
[i
] == '\n')
559 memcpy(lval
, ln
+ strlen(lkey
) + 1,
560 min(sizeof(lval
) - 1, &buf
[i
] - ln
- strlen(lkey
) - 1));
562 if ((ifname
!= NULL
) &&
563 (!strcmp(lkey
, "interface") || !strcmp(lkey
, "bss")) )
565 matched_if
= !strcmp(lval
, ifname
);
567 else if (matched_if
&& !strcmp(lkey
, key
))
574 memset(lkey
, 0, sizeof(lkey
));
575 memset(lval
, 0, sizeof(lval
));
582 static int nl80211_ifname2phy_cb(struct nl_msg
*msg
, void *arg
)
585 struct nlattr
**attr
= nl80211_parse(msg
);
587 if (attr
[NL80211_ATTR_WIPHY_NAME
])
588 memcpy(buf
, nla_data(attr
[NL80211_ATTR_WIPHY_NAME
]),
589 nla_len(attr
[NL80211_ATTR_WIPHY_NAME
]));
596 static char * nl80211_ifname2phy(const char *ifname
)
598 static char phy
[32] = { 0 };
599 struct nl80211_msg_conveyor
*req
;
601 memset(phy
, 0, sizeof(phy
));
603 req
= nl80211_msg(ifname
, NL80211_CMD_GET_WIPHY
, 0);
606 nl80211_send(req
, nl80211_ifname2phy_cb
, phy
);
610 return phy
[0] ? phy
: NULL
;
613 static char * nl80211_phy2ifname(const char *ifname
)
615 int fd
, ifidx
= -1, cifidx
= -1, phyidx
= -1;
617 static char nif
[IFNAMSIZ
] = { 0 };
622 /* Only accept phy name of the form phy%d or radio%d */
625 else if (!strncmp(ifname
, "phy", 3))
626 phyidx
= atoi(&ifname
[3]);
627 else if (!strncmp(ifname
, "radio", 5))
628 phyidx
= nl80211_phy_idx_from_uci(ifname
);
632 memset(nif
, 0, sizeof(nif
));
636 if ((d
= opendir("/sys/class/net")) != NULL
)
638 while ((e
= readdir(d
)) != NULL
)
640 snprintf(buffer
, sizeof(buffer
),
641 "/sys/class/net/%s/phy80211/index", e
->d_name
);
643 if (nl80211_readint(buffer
) == phyidx
)
645 snprintf(buffer
, sizeof(buffer
),
646 "/sys/class/net/%s/ifindex", e
->d_name
);
648 if ((cifidx
= nl80211_readint(buffer
)) >= 0 &&
649 ((ifidx
< 0) || (cifidx
< ifidx
)))
652 strncpy(nif
, e
->d_name
, sizeof(nif
));
661 return nif
[0] ? nif
: NULL
;
664 static int nl80211_get_mode_cb(struct nl_msg
*msg
, void *arg
)
667 struct nlattr
**tb
= nl80211_parse(msg
);
668 const int ifmodes
[NL80211_IFTYPE_MAX
+ 1] = {
669 IWINFO_OPMODE_UNKNOWN
, /* unspecified */
670 IWINFO_OPMODE_ADHOC
, /* IBSS */
671 IWINFO_OPMODE_CLIENT
, /* managed */
672 IWINFO_OPMODE_MASTER
, /* AP */
673 IWINFO_OPMODE_AP_VLAN
, /* AP/VLAN */
674 IWINFO_OPMODE_WDS
, /* WDS */
675 IWINFO_OPMODE_MONITOR
, /* monitor */
676 IWINFO_OPMODE_MESHPOINT
, /* mesh point */
677 IWINFO_OPMODE_P2P_CLIENT
, /* P2P-client */
678 IWINFO_OPMODE_P2P_GO
, /* P2P-GO */
681 if (tb
[NL80211_ATTR_IFTYPE
])
682 *mode
= ifmodes
[nla_get_u32(tb
[NL80211_ATTR_IFTYPE
])];
688 static int nl80211_get_mode(const char *ifname
, int *buf
)
691 struct nl80211_msg_conveyor
*req
;
693 res
= nl80211_phy2ifname(ifname
);
694 req
= nl80211_msg(res
? res
: ifname
, NL80211_CMD_GET_INTERFACE
, 0);
695 *buf
= IWINFO_OPMODE_UNKNOWN
;
699 nl80211_send(req
, nl80211_get_mode_cb
, buf
);
703 return (*buf
== IWINFO_OPMODE_UNKNOWN
) ? -1 : 0;
706 static char * nl80211_hostapd_info(const char *ifname
)
710 char path
[32] = { 0 };
711 static char buf
[4096] = { 0 };
714 if (nl80211_get_mode(ifname
, &mode
))
717 if ((mode
== IWINFO_OPMODE_MASTER
|| mode
== IWINFO_OPMODE_AP_VLAN
) &&
718 (phy
= nl80211_ifname2phy(ifname
)) != NULL
)
720 snprintf(path
, sizeof(path
), "/var/run/hostapd-%s.conf", phy
);
722 if ((conf
= fopen(path
, "r")) != NULL
)
724 fread(buf
, sizeof(buf
) - 1, 1, conf
);
734 static inline int nl80211_wpactl_recv(int sock
, char *buf
, int blen
)
737 struct timeval tv
= { 2, 0 };
742 memset(buf
, 0, blen
);
745 if (select(sock
+ 1, &rfds
, NULL
, NULL
, &tv
) < 0)
748 if (!FD_ISSET(sock
, &rfds
))
751 return recv(sock
, buf
, blen
, 0);
754 static char * nl80211_wpactl_info(const char *ifname
, const char *cmd
,
760 size_t remote_length
, local_length
;
761 static char buffer
[10240] = { 0 };
763 struct sockaddr_un local
= { 0 };
764 struct sockaddr_un remote
= { 0 };
767 sock
= socket(PF_UNIX
, SOCK_DGRAM
, 0);
771 remote
.sun_family
= AF_UNIX
;
772 remote_length
= sizeof(remote
.sun_family
) + sprintf(remote
.sun_path
,
773 "/var/run/wpa_supplicant-%s/%s", ifname
, ifname
);
775 if (fcntl(sock
, F_SETFD
, fcntl(sock
, F_GETFD
) | FD_CLOEXEC
) < 0)
778 if (connect(sock
, (struct sockaddr
*) &remote
, remote_length
))
780 remote_length
= sizeof(remote
.sun_family
) + sprintf(remote
.sun_path
,
781 "/var/run/wpa_supplicant/%s", ifname
);
783 if (connect(sock
, (struct sockaddr
*) &remote
, remote_length
))
787 local
.sun_family
= AF_UNIX
;
788 local_length
= sizeof(local
.sun_family
) +
789 sprintf(local
.sun_path
, "/var/run/iwinfo-%s-%d", ifname
, getpid());
791 if (bind(sock
, (struct sockaddr
*) &local
, local_length
))
797 send(sock
, "ATTACH", 6, 0);
799 if (nl80211_wpactl_recv(sock
, buffer
, sizeof(buffer
)-1) <= 0)
804 send(sock
, cmd
, strlen(cmd
), 0);
806 /* we might have to scan up to 72 channels / 256ms per channel */
807 /* this makes up to 18.5s hence 10 tries */
808 while( numtry
++ < 10 )
812 /* make sure there is a terminating nul byte */
813 if (nl80211_wpactl_recv(sock
, buffer
, sizeof(buffer
)-1) <= 0)
821 if ((!event
&& buffer
[0] != '<') || (event
&& strstr(buffer
, event
)))
824 /* there may be more than max(numtry) BSS-ADDED events */
825 /* ignore them similar to wpa_cli */
826 if (buffer
[0] == '<' &&
827 (bracket
=strchr(buffer
,'>')) != NULL
&&
828 strncmp(bracket
+1,"CTRL-EVENT-BSS-ADDED",20) == 0)
837 if (local
.sun_family
)
838 unlink(local
.sun_path
);
843 static char * nl80211_ifadd(const char *ifname
)
846 char *rv
= NULL
, path
[PATH_MAX
];
847 static char nif
[IFNAMSIZ
] = { 0 };
848 struct nl80211_msg_conveyor
*req
, *res
;
851 req
= nl80211_msg(ifname
, NL80211_CMD_NEW_INTERFACE
, 0);
854 snprintf(nif
, sizeof(nif
), "tmp.%s", ifname
);
856 NLA_PUT_STRING(req
->msg
, NL80211_ATTR_IFNAME
, nif
);
857 NLA_PUT_U32(req
->msg
, NL80211_ATTR_IFTYPE
, NL80211_IFTYPE_STATION
);
859 nl80211_send(req
, NULL
, NULL
);
861 snprintf(path
, sizeof(path
) - 1,
862 "/proc/sys/net/ipv6/conf/%s/disable_ipv6", nif
);
864 if ((sysfs
= fopen(path
, "w")) != NULL
)
866 fwrite("0\n", 1, 2, sysfs
);
879 static void nl80211_ifdel(const char *ifname
)
881 struct nl80211_msg_conveyor
*req
;
883 req
= nl80211_msg(ifname
, NL80211_CMD_DEL_INTERFACE
, 0);
886 NLA_PUT_STRING(req
->msg
, NL80211_ATTR_IFNAME
, ifname
);
888 nl80211_send(req
, NULL
, NULL
);
895 static void nl80211_hostapd_hup(const char *ifname
)
899 char *phy
= nl80211_ifname2phy(ifname
);
903 snprintf(buf
, sizeof(buf
), "/var/run/wifi-%s.pid", phy
);
904 if ((fd
= open(buf
, O_RDONLY
)) > 0)
906 if (read(fd
, buf
, sizeof(buf
)) > 0)
918 static int nl80211_probe(const char *ifname
)
920 return !!nl80211_ifname2phy(ifname
);
923 struct nl80211_ssid_bssid
{
925 unsigned char bssid
[7];
928 static int nl80211_get_ssid_bssid_cb(struct nl_msg
*msg
, void *arg
)
932 struct nl80211_ssid_bssid
*sb
= arg
;
933 struct nlattr
**tb
= nl80211_parse(msg
);
934 struct nlattr
*bss
[NL80211_BSS_MAX
+ 1];
936 static struct nla_policy bss_policy
[NL80211_BSS_MAX
+ 1] = {
937 [NL80211_BSS_INFORMATION_ELEMENTS
] = { },
938 [NL80211_BSS_STATUS
] = { .type
= NLA_U32
},
941 if (!tb
[NL80211_ATTR_BSS
] ||
942 nla_parse_nested(bss
, NL80211_BSS_MAX
, tb
[NL80211_ATTR_BSS
],
944 !bss
[NL80211_BSS_BSSID
] ||
945 !bss
[NL80211_BSS_STATUS
] ||
946 !bss
[NL80211_BSS_INFORMATION_ELEMENTS
])
951 switch (nla_get_u32(bss
[NL80211_BSS_STATUS
]))
953 case NL80211_BSS_STATUS_ASSOCIATED
:
954 case NL80211_BSS_STATUS_AUTHENTICATED
:
955 case NL80211_BSS_STATUS_IBSS_JOINED
:
959 ie
= nla_data(bss
[NL80211_BSS_INFORMATION_ELEMENTS
]);
960 ielen
= nla_len(bss
[NL80211_BSS_INFORMATION_ELEMENTS
]);
962 while (ielen
>= 2 && ielen
>= ie
[1])
966 memcpy(sb
->ssid
, ie
+ 2, min(ie
[1], IWINFO_ESSID_MAX_SIZE
));
977 memcpy(sb
->bssid
+ 1, nla_data(bss
[NL80211_BSS_BSSID
]), 6);
986 static int nl80211_get_ssid(const char *ifname
, char *buf
)
989 struct nl80211_msg_conveyor
*req
;
990 struct nl80211_ssid_bssid sb
;
992 /* try to find ssid from scan dump results */
993 res
= nl80211_phy2ifname(ifname
);
994 req
= nl80211_msg(res
? res
: ifname
, NL80211_CMD_GET_SCAN
, NLM_F_DUMP
);
1001 nl80211_send(req
, nl80211_get_ssid_bssid_cb
, &sb
);
1005 /* failed, try to find from hostapd info */
1007 (res
= nl80211_hostapd_info(ifname
)) &&
1008 (res
= nl80211_getval(ifname
, res
, "ssid")))
1010 memcpy(buf
, res
, strlen(res
));
1013 return (*buf
== 0) ? -1 : 0;
1016 static int nl80211_get_bssid(const char *ifname
, char *buf
)
1019 struct nl80211_msg_conveyor
*req
;
1020 struct nl80211_ssid_bssid sb
;
1022 /* try to find bssid from scan dump results */
1023 res
= nl80211_phy2ifname(ifname
);
1024 req
= nl80211_msg(res
? res
: ifname
, NL80211_CMD_GET_SCAN
, NLM_F_DUMP
);
1031 nl80211_send(req
, nl80211_get_ssid_bssid_cb
, &sb
);
1035 /* failed, try to find mac from hostapd info */
1036 if ((sb
.bssid
[0] == 0) &&
1037 (res
= nl80211_hostapd_info(ifname
)) &&
1038 (res
= nl80211_getval(ifname
, res
, "bssid")))
1041 sb
.bssid
[1] = strtol(&res
[0], NULL
, 16);
1042 sb
.bssid
[2] = strtol(&res
[3], NULL
, 16);
1043 sb
.bssid
[3] = strtol(&res
[6], NULL
, 16);
1044 sb
.bssid
[4] = strtol(&res
[9], NULL
, 16);
1045 sb
.bssid
[5] = strtol(&res
[12], NULL
, 16);
1046 sb
.bssid
[6] = strtol(&res
[15], NULL
, 16);
1051 sprintf(buf
, "%02X:%02X:%02X:%02X:%02X:%02X",
1052 sb
.bssid
[1], sb
.bssid
[2], sb
.bssid
[3],
1053 sb
.bssid
[4], sb
.bssid
[5], sb
.bssid
[6]);
1062 static int nl80211_get_frequency_scan_cb(struct nl_msg
*msg
, void *arg
)
1065 struct nlattr
**attr
= nl80211_parse(msg
);
1066 struct nlattr
*binfo
[NL80211_BSS_MAX
+ 1];
1068 static struct nla_policy bss_policy
[NL80211_BSS_MAX
+ 1] = {
1069 [NL80211_BSS_FREQUENCY
] = { .type
= NLA_U32
},
1070 [NL80211_BSS_STATUS
] = { .type
= NLA_U32
},
1073 if (attr
[NL80211_ATTR_BSS
] &&
1074 !nla_parse_nested(binfo
, NL80211_BSS_MAX
,
1075 attr
[NL80211_ATTR_BSS
], bss_policy
))
1077 if (binfo
[NL80211_BSS_STATUS
] && binfo
[NL80211_BSS_FREQUENCY
])
1078 *freq
= nla_get_u32(binfo
[NL80211_BSS_FREQUENCY
]);
1084 static int nl80211_get_frequency_info_cb(struct nl_msg
*msg
, void *arg
)
1087 struct nlattr
**tb
= nl80211_parse(msg
);
1089 if (tb
[NL80211_ATTR_WIPHY_FREQ
])
1090 *freq
= nla_get_u32(tb
[NL80211_ATTR_WIPHY_FREQ
]);
1095 static int nl80211_get_frequency(const char *ifname
, int *buf
)
1098 char *res
, *channel
;
1099 struct nl80211_msg_conveyor
*req
;
1101 /* try to find frequency from interface info */
1102 res
= nl80211_phy2ifname(ifname
);
1103 req
= nl80211_msg(res
? res
: ifname
, NL80211_CMD_GET_INTERFACE
, 0);
1108 nl80211_send(req
, nl80211_get_frequency_info_cb
, buf
);
1112 /* failed, try to find frequency from hostapd info */
1114 (res
= nl80211_hostapd_info(ifname
)) &&
1115 (channel
= nl80211_getval(NULL
, res
, "channel")))
1117 chn
= atoi(channel
);
1118 *buf
= nl80211_channel2freq(chn
, nl80211_getval(NULL
, res
, "hw_mode"));
1122 /* failed, try to find frequency from scan results */
1125 res
= nl80211_phy2ifname(ifname
);
1126 req
= nl80211_msg(res
? res
: ifname
, NL80211_CMD_GET_SCAN
,
1131 nl80211_send(req
, nl80211_get_frequency_scan_cb
, buf
);
1137 return (*buf
== 0) ? -1 : 0;
1140 static int nl80211_get_channel(const char *ifname
, int *buf
)
1142 if (!nl80211_get_frequency(ifname
, buf
))
1144 *buf
= nl80211_freq2channel(*buf
);
1152 static int nl80211_get_txpower(const char *ifname
, int *buf
)
1156 char path
[PATH_MAX
];
1158 res
= nl80211_ifname2phy(ifname
);
1159 snprintf(path
, sizeof(path
), "/sys/kernel/debug/ieee80211/%s/power",
1160 res
? res
: ifname
);
1162 if ((*buf
= nl80211_readint(path
)) > -1)
1166 return wext_ops
.txpower(ifname
, buf
);
1170 static int nl80211_fill_signal_cb(struct nl_msg
*msg
, void *arg
)
1174 struct nl80211_rssi_rate
*rr
= arg
;
1175 struct nlattr
**attr
= nl80211_parse(msg
);
1176 struct nlattr
*sinfo
[NL80211_STA_INFO_MAX
+ 1];
1177 struct nlattr
*rinfo
[NL80211_RATE_INFO_MAX
+ 1];
1179 static struct nla_policy stats_policy
[NL80211_STA_INFO_MAX
+ 1] = {
1180 [NL80211_STA_INFO_INACTIVE_TIME
] = { .type
= NLA_U32
},
1181 [NL80211_STA_INFO_RX_BYTES
] = { .type
= NLA_U32
},
1182 [NL80211_STA_INFO_TX_BYTES
] = { .type
= NLA_U32
},
1183 [NL80211_STA_INFO_RX_PACKETS
] = { .type
= NLA_U32
},
1184 [NL80211_STA_INFO_TX_PACKETS
] = { .type
= NLA_U32
},
1185 [NL80211_STA_INFO_SIGNAL
] = { .type
= NLA_U8
},
1186 [NL80211_STA_INFO_TX_BITRATE
] = { .type
= NLA_NESTED
},
1187 [NL80211_STA_INFO_LLID
] = { .type
= NLA_U16
},
1188 [NL80211_STA_INFO_PLID
] = { .type
= NLA_U16
},
1189 [NL80211_STA_INFO_PLINK_STATE
] = { .type
= NLA_U8
},
1192 static struct nla_policy rate_policy
[NL80211_RATE_INFO_MAX
+ 1] = {
1193 [NL80211_RATE_INFO_BITRATE
] = { .type
= NLA_U16
},
1194 [NL80211_RATE_INFO_MCS
] = { .type
= NLA_U8
},
1195 [NL80211_RATE_INFO_40_MHZ_WIDTH
] = { .type
= NLA_FLAG
},
1196 [NL80211_RATE_INFO_SHORT_GI
] = { .type
= NLA_FLAG
},
1199 if (attr
[NL80211_ATTR_STA_INFO
])
1201 if (!nla_parse_nested(sinfo
, NL80211_STA_INFO_MAX
,
1202 attr
[NL80211_ATTR_STA_INFO
], stats_policy
))
1204 if (sinfo
[NL80211_STA_INFO_SIGNAL
])
1206 dbm
= nla_get_u8(sinfo
[NL80211_STA_INFO_SIGNAL
]);
1207 rr
->rssi
= rr
->rssi
? (int8_t)((rr
->rssi
+ dbm
) / 2) : dbm
;
1210 if (sinfo
[NL80211_STA_INFO_TX_BITRATE
])
1212 if (!nla_parse_nested(rinfo
, NL80211_RATE_INFO_MAX
,
1213 sinfo
[NL80211_STA_INFO_TX_BITRATE
],
1216 if (rinfo
[NL80211_RATE_INFO_BITRATE
])
1218 mbit
= nla_get_u16(rinfo
[NL80211_RATE_INFO_BITRATE
]);
1220 ? (int16_t)((rr
->rate
+ mbit
) / 2) : mbit
;
1230 static void nl80211_fill_signal(const char *ifname
, struct nl80211_rssi_rate
*r
)
1234 struct nl80211_msg_conveyor
*req
;
1239 if ((d
= opendir("/sys/class/net")) != NULL
)
1241 while ((de
= readdir(d
)) != NULL
)
1243 if (!strncmp(de
->d_name
, ifname
, strlen(ifname
)) &&
1244 (!de
->d_name
[strlen(ifname
)] ||
1245 !strncmp(&de
->d_name
[strlen(ifname
)], ".sta", 4)))
1247 req
= nl80211_msg(de
->d_name
, NL80211_CMD_GET_STATION
,
1252 nl80211_send(req
, nl80211_fill_signal_cb
, r
);
1262 static int nl80211_get_bitrate(const char *ifname
, int *buf
)
1264 struct nl80211_rssi_rate rr
;
1266 nl80211_fill_signal(ifname
, &rr
);
1270 *buf
= (rr
.rate
* 100);
1277 static int nl80211_get_signal(const char *ifname
, int *buf
)
1279 struct nl80211_rssi_rate rr
;
1281 nl80211_fill_signal(ifname
, &rr
);
1292 static int nl80211_get_noise_cb(struct nl_msg
*msg
, void *arg
)
1294 int8_t *noise
= arg
;
1295 struct nlattr
**tb
= nl80211_parse(msg
);
1296 struct nlattr
*si
[NL80211_SURVEY_INFO_MAX
+ 1];
1298 static struct nla_policy sp
[NL80211_SURVEY_INFO_MAX
+ 1] = {
1299 [NL80211_SURVEY_INFO_FREQUENCY
] = { .type
= NLA_U32
},
1300 [NL80211_SURVEY_INFO_NOISE
] = { .type
= NLA_U8
},
1303 if (!tb
[NL80211_ATTR_SURVEY_INFO
])
1306 if (nla_parse_nested(si
, NL80211_SURVEY_INFO_MAX
,
1307 tb
[NL80211_ATTR_SURVEY_INFO
], sp
))
1310 if (!si
[NL80211_SURVEY_INFO_NOISE
])
1313 if (!*noise
|| si
[NL80211_SURVEY_INFO_IN_USE
])
1314 *noise
= (int8_t)nla_get_u8(si
[NL80211_SURVEY_INFO_NOISE
]);
1320 static int nl80211_get_noise(const char *ifname
, int *buf
)
1323 struct nl80211_msg_conveyor
*req
;
1325 req
= nl80211_msg(ifname
, NL80211_CMD_GET_SURVEY
, NLM_F_DUMP
);
1330 nl80211_send(req
, nl80211_get_noise_cb
, &noise
);
1343 static int nl80211_get_quality(const char *ifname
, int *buf
)
1347 if (!nl80211_get_signal(ifname
, &signal
))
1349 /* A positive signal level is usually just a quality
1350 * value, pass through as-is */
1356 /* The cfg80211 wext compat layer assumes a signal range
1357 * of -110 dBm to -40 dBm, the quality value is derived
1358 * by adding 110 to the signal level */
1363 else if (signal
> -40)
1366 *buf
= (signal
+ 110);
1375 static int nl80211_get_quality_max(const char *ifname
, int *buf
)
1377 /* The cfg80211 wext compat layer assumes a maximum
1384 static int nl80211_get_encryption(const char *ifname
, char *buf
)
1389 struct iwinfo_crypto_entry
*c
= (struct iwinfo_crypto_entry
*)buf
;
1391 /* WPA supplicant */
1392 if ((res
= nl80211_wpactl_info(ifname
, "STATUS", NULL
)) &&
1393 (val
= nl80211_getval(NULL
, res
, "pairwise_cipher")))
1396 if (strstr(val
, "WEP"))
1398 if (strstr(val
, "WEP-40"))
1399 c
->pair_ciphers
|= IWINFO_CIPHER_WEP40
;
1401 else if (strstr(val
, "WEP-104"))
1402 c
->pair_ciphers
|= IWINFO_CIPHER_WEP104
;
1405 c
->group_ciphers
= c
->pair_ciphers
;
1407 c
->auth_suites
|= IWINFO_KMGMT_NONE
;
1408 c
->auth_algs
|= IWINFO_AUTH_OPEN
; /* XXX: assumption */
1414 if (strstr(val
, "TKIP"))
1415 c
->pair_ciphers
|= IWINFO_CIPHER_TKIP
;
1417 else if (strstr(val
, "CCMP"))
1418 c
->pair_ciphers
|= IWINFO_CIPHER_CCMP
;
1420 else if (strstr(val
, "NONE"))
1421 c
->pair_ciphers
|= IWINFO_CIPHER_NONE
;
1423 else if (strstr(val
, "WEP-40"))
1424 c
->pair_ciphers
|= IWINFO_CIPHER_WEP40
;
1426 else if (strstr(val
, "WEP-104"))
1427 c
->pair_ciphers
|= IWINFO_CIPHER_WEP104
;
1430 if ((val
= nl80211_getval(NULL
, res
, "group_cipher")))
1432 if (strstr(val
, "TKIP"))
1433 c
->group_ciphers
|= IWINFO_CIPHER_TKIP
;
1435 else if (strstr(val
, "CCMP"))
1436 c
->group_ciphers
|= IWINFO_CIPHER_CCMP
;
1438 else if (strstr(val
, "NONE"))
1439 c
->group_ciphers
|= IWINFO_CIPHER_NONE
;
1441 else if (strstr(val
, "WEP-40"))
1442 c
->group_ciphers
|= IWINFO_CIPHER_WEP40
;
1444 else if (strstr(val
, "WEP-104"))
1445 c
->group_ciphers
|= IWINFO_CIPHER_WEP104
;
1449 if ((val
= nl80211_getval(NULL
, res
, "key_mgmt")))
1451 if (strstr(val
, "WPA2"))
1454 else if (strstr(val
, "WPA"))
1458 if (strstr(val
, "PSK"))
1459 c
->auth_suites
|= IWINFO_KMGMT_PSK
;
1461 else if (strstr(val
, "EAP") || strstr(val
, "802.1X"))
1462 c
->auth_suites
|= IWINFO_KMGMT_8021x
;
1464 else if (strstr(val
, "NONE"))
1465 c
->auth_suites
|= IWINFO_KMGMT_NONE
;
1468 c
->enabled
= (c
->wpa_version
&& c
->auth_suites
) ? 1 : 0;
1475 else if ((res
= nl80211_hostapd_info(ifname
)))
1477 if ((val
= nl80211_getval(ifname
, res
, "wpa")) != NULL
)
1478 c
->wpa_version
= atoi(val
);
1480 val
= nl80211_getval(ifname
, res
, "wpa_key_mgmt");
1482 if (!val
|| strstr(val
, "PSK"))
1483 c
->auth_suites
|= IWINFO_KMGMT_PSK
;
1485 if (val
&& strstr(val
, "EAP"))
1486 c
->auth_suites
|= IWINFO_KMGMT_8021x
;
1488 if (val
&& strstr(val
, "NONE"))
1489 c
->auth_suites
|= IWINFO_KMGMT_NONE
;
1491 if ((val
= nl80211_getval(ifname
, res
, "wpa_pairwise")) != NULL
)
1493 if (strstr(val
, "TKIP"))
1494 c
->pair_ciphers
|= IWINFO_CIPHER_TKIP
;
1496 if (strstr(val
, "CCMP"))
1497 c
->pair_ciphers
|= IWINFO_CIPHER_CCMP
;
1499 if (strstr(val
, "NONE"))
1500 c
->pair_ciphers
|= IWINFO_CIPHER_NONE
;
1503 if ((val
= nl80211_getval(ifname
, res
, "auth_algs")) != NULL
)
1507 c
->auth_algs
|= IWINFO_AUTH_OPEN
;
1511 c
->auth_algs
|= IWINFO_AUTH_SHARED
;
1515 c
->auth_algs
|= IWINFO_AUTH_OPEN
;
1516 c
->auth_algs
|= IWINFO_AUTH_SHARED
;
1523 for (i
= 0; i
< 4; i
++)
1525 snprintf(k
, sizeof(k
), "wep_key%d", i
);
1527 if ((val
= nl80211_getval(ifname
, res
, k
)))
1529 if ((strlen(val
) == 5) || (strlen(val
) == 10))
1530 c
->pair_ciphers
|= IWINFO_CIPHER_WEP40
;
1532 else if ((strlen(val
) == 13) || (strlen(val
) == 26))
1533 c
->pair_ciphers
|= IWINFO_CIPHER_WEP104
;
1538 c
->group_ciphers
= c
->pair_ciphers
;
1539 c
->enabled
= (c
->wpa_version
|| c
->pair_ciphers
) ? 1 : 0;
1547 static int nl80211_get_phyname(const char *ifname
, char *buf
)
1551 name
= nl80211_ifname2phy(ifname
);
1558 else if ((name
= nl80211_phy2ifname(ifname
)) != NULL
)
1560 name
= nl80211_ifname2phy(name
);
1564 strcpy(buf
, ifname
);
1573 static int nl80211_get_assoclist_cb(struct nl_msg
*msg
, void *arg
)
1575 struct nl80211_array_buf
*arr
= arg
;
1576 struct iwinfo_assoclist_entry
*e
= arr
->buf
;
1577 struct nlattr
**attr
= nl80211_parse(msg
);
1578 struct nlattr
*sinfo
[NL80211_STA_INFO_MAX
+ 1];
1579 struct nlattr
*rinfo
[NL80211_RATE_INFO_MAX
+ 1];
1581 static struct nla_policy stats_policy
[NL80211_STA_INFO_MAX
+ 1] = {
1582 [NL80211_STA_INFO_INACTIVE_TIME
] = { .type
= NLA_U32
},
1583 [NL80211_STA_INFO_RX_PACKETS
] = { .type
= NLA_U32
},
1584 [NL80211_STA_INFO_TX_PACKETS
] = { .type
= NLA_U32
},
1585 [NL80211_STA_INFO_RX_BITRATE
] = { .type
= NLA_NESTED
},
1586 [NL80211_STA_INFO_TX_BITRATE
] = { .type
= NLA_NESTED
},
1587 [NL80211_STA_INFO_SIGNAL
] = { .type
= NLA_U8
},
1590 static struct nla_policy rate_policy
[NL80211_RATE_INFO_MAX
+ 1] = {
1591 [NL80211_RATE_INFO_BITRATE
] = { .type
= NLA_U16
},
1592 [NL80211_RATE_INFO_MCS
] = { .type
= NLA_U8
},
1593 [NL80211_RATE_INFO_40_MHZ_WIDTH
] = { .type
= NLA_FLAG
},
1594 [NL80211_RATE_INFO_SHORT_GI
] = { .type
= NLA_FLAG
},
1597 /* advance to end of array */
1599 memset(e
, 0, sizeof(*e
));
1601 if (attr
[NL80211_ATTR_MAC
])
1602 memcpy(e
->mac
, nla_data(attr
[NL80211_ATTR_MAC
]), 6);
1604 if (attr
[NL80211_ATTR_STA_INFO
] &&
1605 !nla_parse_nested(sinfo
, NL80211_STA_INFO_MAX
,
1606 attr
[NL80211_ATTR_STA_INFO
], stats_policy
))
1608 if (sinfo
[NL80211_STA_INFO_SIGNAL
])
1609 e
->signal
= nla_get_u8(sinfo
[NL80211_STA_INFO_SIGNAL
]);
1611 if (sinfo
[NL80211_STA_INFO_INACTIVE_TIME
])
1612 e
->inactive
= nla_get_u32(sinfo
[NL80211_STA_INFO_INACTIVE_TIME
]);
1614 if (sinfo
[NL80211_STA_INFO_RX_PACKETS
])
1615 e
->rx_packets
= nla_get_u32(sinfo
[NL80211_STA_INFO_RX_PACKETS
]);
1617 if (sinfo
[NL80211_STA_INFO_TX_PACKETS
])
1618 e
->tx_packets
= nla_get_u32(sinfo
[NL80211_STA_INFO_TX_PACKETS
]);
1620 if (sinfo
[NL80211_STA_INFO_RX_BITRATE
] &&
1621 !nla_parse_nested(rinfo
, NL80211_RATE_INFO_MAX
,
1622 sinfo
[NL80211_STA_INFO_RX_BITRATE
], rate_policy
))
1624 if (rinfo
[NL80211_RATE_INFO_BITRATE
])
1626 nla_get_u16(rinfo
[NL80211_RATE_INFO_BITRATE
]) * 100;
1628 if (rinfo
[NL80211_RATE_INFO_MCS
])
1629 e
->rx_rate
.mcs
= nla_get_u8(rinfo
[NL80211_RATE_INFO_MCS
]);
1631 if (rinfo
[NL80211_RATE_INFO_40_MHZ_WIDTH
])
1632 e
->rx_rate
.is_40mhz
= 1;
1634 if (rinfo
[NL80211_RATE_INFO_SHORT_GI
])
1635 e
->rx_rate
.is_short_gi
= 1;
1638 if (sinfo
[NL80211_STA_INFO_TX_BITRATE
] &&
1639 !nla_parse_nested(rinfo
, NL80211_RATE_INFO_MAX
,
1640 sinfo
[NL80211_STA_INFO_TX_BITRATE
], rate_policy
))
1642 if (rinfo
[NL80211_RATE_INFO_BITRATE
])
1644 nla_get_u16(rinfo
[NL80211_RATE_INFO_BITRATE
]) * 100;
1646 if (rinfo
[NL80211_RATE_INFO_MCS
])
1647 e
->tx_rate
.mcs
= nla_get_u8(rinfo
[NL80211_RATE_INFO_MCS
]);
1649 if (rinfo
[NL80211_RATE_INFO_40_MHZ_WIDTH
])
1650 e
->tx_rate
.is_40mhz
= 1;
1652 if (rinfo
[NL80211_RATE_INFO_SHORT_GI
])
1653 e
->tx_rate
.is_short_gi
= 1;
1657 e
->noise
= 0; /* filled in by caller */
1663 static int nl80211_get_assoclist(const char *ifname
, char *buf
, int *len
)
1668 struct nl80211_msg_conveyor
*req
;
1669 struct nl80211_array_buf arr
= { .buf
= buf
, .count
= 0 };
1670 struct iwinfo_assoclist_entry
*e
;
1672 if ((d
= opendir("/sys/class/net")) != NULL
)
1674 while ((de
= readdir(d
)) != NULL
)
1676 if (!strncmp(de
->d_name
, ifname
, strlen(ifname
)) &&
1677 (!de
->d_name
[strlen(ifname
)] ||
1678 !strncmp(&de
->d_name
[strlen(ifname
)], ".sta", 4)))
1680 req
= nl80211_msg(de
->d_name
, NL80211_CMD_GET_STATION
,
1685 nl80211_send(req
, nl80211_get_assoclist_cb
, &arr
);
1693 if (!nl80211_get_noise(ifname
, &noise
))
1694 for (i
= 0, e
= arr
.buf
; i
< arr
.count
; i
++, e
++)
1697 *len
= (arr
.count
* sizeof(struct iwinfo_assoclist_entry
));
1704 static int nl80211_get_txpwrlist_cb(struct nl_msg
*msg
, void *arg
)
1707 int ch_cur
, ch_cmp
, bands_remain
, freqs_remain
;
1709 struct nlattr
**attr
= nl80211_parse(msg
);
1710 struct nlattr
*bands
[NL80211_BAND_ATTR_MAX
+ 1];
1711 struct nlattr
*freqs
[NL80211_FREQUENCY_ATTR_MAX
+ 1];
1712 struct nlattr
*band
, *freq
;
1714 static struct nla_policy freq_policy
[NL80211_FREQUENCY_ATTR_MAX
+ 1] = {
1715 [NL80211_FREQUENCY_ATTR_FREQ
] = { .type
= NLA_U32
},
1716 [NL80211_FREQUENCY_ATTR_DISABLED
] = { .type
= NLA_FLAG
},
1717 [NL80211_FREQUENCY_ATTR_PASSIVE_SCAN
] = { .type
= NLA_FLAG
},
1718 [NL80211_FREQUENCY_ATTR_NO_IBSS
] = { .type
= NLA_FLAG
},
1719 [NL80211_FREQUENCY_ATTR_RADAR
] = { .type
= NLA_FLAG
},
1720 [NL80211_FREQUENCY_ATTR_MAX_TX_POWER
] = { .type
= NLA_U32
},
1723 ch_cur
= *dbm_max
; /* value int* is initialized with channel by caller */
1726 nla_for_each_nested(band
, attr
[NL80211_ATTR_WIPHY_BANDS
], bands_remain
)
1728 nla_parse(bands
, NL80211_BAND_ATTR_MAX
, nla_data(band
),
1729 nla_len(band
), NULL
);
1731 nla_for_each_nested(freq
, bands
[NL80211_BAND_ATTR_FREQS
], freqs_remain
)
1733 nla_parse(freqs
, NL80211_FREQUENCY_ATTR_MAX
,
1734 nla_data(freq
), nla_len(freq
), freq_policy
);
1736 ch_cmp
= nl80211_freq2channel(nla_get_u32(
1737 freqs
[NL80211_FREQUENCY_ATTR_FREQ
]));
1739 if ((!ch_cur
|| (ch_cmp
== ch_cur
)) &&
1740 freqs
[NL80211_FREQUENCY_ATTR_MAX_TX_POWER
])
1742 *dbm_max
= (int)(0.01 * nla_get_u32(
1743 freqs
[NL80211_FREQUENCY_ATTR_MAX_TX_POWER
]));
1753 static int nl80211_get_txpwrlist(const char *ifname
, char *buf
, int *len
)
1756 int dbm_max
= -1, dbm_cur
, dbm_cnt
;
1757 struct nl80211_msg_conveyor
*req
;
1758 struct iwinfo_txpwrlist_entry entry
;
1760 if (nl80211_get_channel(ifname
, &ch_cur
))
1763 req
= nl80211_msg(ifname
, NL80211_CMD_GET_WIPHY
, 0);
1766 /* initialize the value pointer with channel for callback */
1769 nl80211_send(req
, nl80211_get_txpwrlist_cb
, &dbm_max
);
1775 for (dbm_cur
= 0, dbm_cnt
= 0;
1777 dbm_cur
++, dbm_cnt
++)
1779 entry
.dbm
= dbm_cur
;
1780 entry
.mw
= iwinfo_dbm2mw(dbm_cur
);
1782 memcpy(&buf
[dbm_cnt
* sizeof(entry
)], &entry
, sizeof(entry
));
1785 entry
.dbm
= dbm_max
;
1786 entry
.mw
= iwinfo_dbm2mw(dbm_max
);
1788 memcpy(&buf
[dbm_cnt
* sizeof(entry
)], &entry
, sizeof(entry
));
1791 *len
= dbm_cnt
* sizeof(entry
);
1798 static void nl80211_get_scancrypto(const char *spec
,
1799 struct iwinfo_crypto_entry
*c
)
1801 if (strstr(spec
, "WPA") || strstr(spec
, "WEP"))
1805 if (strstr(spec
, "WPA2-") && strstr(spec
, "WPA-"))
1808 else if (strstr(spec
, "WPA2"))
1811 else if (strstr(spec
, "WPA"))
1814 else if (strstr(spec
, "WEP"))
1815 c
->auth_algs
= IWINFO_AUTH_OPEN
| IWINFO_AUTH_SHARED
;
1818 if (strstr(spec
, "PSK"))
1819 c
->auth_suites
|= IWINFO_KMGMT_PSK
;
1821 if (strstr(spec
, "802.1X") || strstr(spec
, "EAP"))
1822 c
->auth_suites
|= IWINFO_KMGMT_8021x
;
1824 if (strstr(spec
, "WPA-NONE"))
1825 c
->auth_suites
|= IWINFO_KMGMT_NONE
;
1828 if (strstr(spec
, "TKIP"))
1829 c
->pair_ciphers
|= IWINFO_CIPHER_TKIP
;
1831 if (strstr(spec
, "CCMP"))
1832 c
->pair_ciphers
|= IWINFO_CIPHER_CCMP
;
1834 if (strstr(spec
, "WEP-40"))
1835 c
->pair_ciphers
|= IWINFO_CIPHER_WEP40
;
1837 if (strstr(spec
, "WEP-104"))
1838 c
->pair_ciphers
|= IWINFO_CIPHER_WEP104
;
1840 c
->group_ciphers
= c
->pair_ciphers
;
1849 struct nl80211_scanlist
{
1850 struct iwinfo_scanlist_entry
*e
;
1855 static void nl80211_get_scanlist_ie(struct nlattr
**bss
,
1856 struct iwinfo_scanlist_entry
*e
)
1858 int ielen
= nla_len(bss
[NL80211_BSS_INFORMATION_ELEMENTS
]);
1859 unsigned char *ie
= nla_data(bss
[NL80211_BSS_INFORMATION_ELEMENTS
]);
1860 static unsigned char ms_oui
[3] = { 0x00, 0x50, 0xf2 };
1863 while (ielen
>= 2 && ielen
>= ie
[1])
1868 len
= min(ie
[1], IWINFO_ESSID_MAX_SIZE
);
1869 memcpy(e
->ssid
, ie
+ 2, len
);
1874 iwinfo_parse_rsn(&e
->crypto
, ie
+ 2, ie
[1],
1875 IWINFO_CIPHER_CCMP
, IWINFO_KMGMT_8021x
);
1878 case 221: /* Vendor */
1879 if (ie
[1] >= 4 && !memcmp(ie
+ 2, ms_oui
, 3) && ie
[5] == 1)
1880 iwinfo_parse_rsn(&e
->crypto
, ie
+ 6, ie
[1] - 4,
1881 IWINFO_CIPHER_TKIP
, IWINFO_KMGMT_PSK
);
1890 static int nl80211_get_scanlist_cb(struct nl_msg
*msg
, void *arg
)
1895 struct nl80211_scanlist
*sl
= arg
;
1896 struct nlattr
**tb
= nl80211_parse(msg
);
1897 struct nlattr
*bss
[NL80211_BSS_MAX
+ 1];
1899 static struct nla_policy bss_policy
[NL80211_BSS_MAX
+ 1] = {
1900 [NL80211_BSS_TSF
] = { .type
= NLA_U64
},
1901 [NL80211_BSS_FREQUENCY
] = { .type
= NLA_U32
},
1902 [NL80211_BSS_BSSID
] = { },
1903 [NL80211_BSS_BEACON_INTERVAL
] = { .type
= NLA_U16
},
1904 [NL80211_BSS_CAPABILITY
] = { .type
= NLA_U16
},
1905 [NL80211_BSS_INFORMATION_ELEMENTS
] = { },
1906 [NL80211_BSS_SIGNAL_MBM
] = { .type
= NLA_U32
},
1907 [NL80211_BSS_SIGNAL_UNSPEC
] = { .type
= NLA_U8
},
1908 [NL80211_BSS_STATUS
] = { .type
= NLA_U32
},
1909 [NL80211_BSS_SEEN_MS_AGO
] = { .type
= NLA_U32
},
1910 [NL80211_BSS_BEACON_IES
] = { },
1913 if (!tb
[NL80211_ATTR_BSS
] ||
1914 nla_parse_nested(bss
, NL80211_BSS_MAX
, tb
[NL80211_ATTR_BSS
],
1916 !bss
[NL80211_BSS_BSSID
])
1921 if (bss
[NL80211_BSS_CAPABILITY
])
1922 caps
= nla_get_u16(bss
[NL80211_BSS_CAPABILITY
]);
1926 memset(sl
->e
, 0, sizeof(*sl
->e
));
1927 memcpy(sl
->e
->mac
, nla_data(bss
[NL80211_BSS_BSSID
]), 6);
1930 sl
->e
->mode
= IWINFO_OPMODE_ADHOC
;
1931 else if (caps
& (1<<0))
1932 sl
->e
->mode
= IWINFO_OPMODE_MASTER
;
1934 sl
->e
->mode
= IWINFO_OPMODE_MESHPOINT
;
1937 sl
->e
->crypto
.enabled
= 1;
1939 if (bss
[NL80211_BSS_FREQUENCY
])
1940 sl
->e
->channel
= nl80211_freq2channel(nla_get_u32(
1941 bss
[NL80211_BSS_FREQUENCY
]));
1943 if (bss
[NL80211_BSS_INFORMATION_ELEMENTS
])
1944 nl80211_get_scanlist_ie(bss
, sl
->e
);
1946 if (bss
[NL80211_BSS_SIGNAL_MBM
])
1949 (uint8_t)((int32_t)nla_get_u32(bss
[NL80211_BSS_SIGNAL_MBM
]) / 100);
1951 rssi
= sl
->e
->signal
- 0x100;
1955 else if (rssi
> -40)
1958 sl
->e
->quality
= (rssi
+ 110);
1959 sl
->e
->quality_max
= 70;
1962 if (sl
->e
->crypto
.enabled
&& !sl
->e
->crypto
.wpa_version
)
1964 sl
->e
->crypto
.auth_algs
= IWINFO_AUTH_OPEN
| IWINFO_AUTH_SHARED
;
1965 sl
->e
->crypto
.pair_ciphers
= IWINFO_CIPHER_WEP40
| IWINFO_CIPHER_WEP104
;
1974 static int nl80211_get_scanlist_nl(const char *ifname
, char *buf
, int *len
)
1976 struct nl80211_msg_conveyor
*req
;
1977 struct nl80211_scanlist sl
= { .e
= (struct iwinfo_scanlist_entry
*)buf
};
1979 req
= nl80211_msg(ifname
, NL80211_CMD_TRIGGER_SCAN
, 0);
1982 nl80211_send(req
, NULL
, NULL
);
1986 nl80211_wait("nl80211", "scan", NL80211_CMD_NEW_SCAN_RESULTS
);
1988 req
= nl80211_msg(ifname
, NL80211_CMD_GET_SCAN
, NLM_F_DUMP
);
1991 nl80211_send(req
, nl80211_get_scanlist_cb
, &sl
);
1995 *len
= sl
.len
* sizeof(struct iwinfo_scanlist_entry
);
1996 return *len
? 0 : -1;
1999 static int wpasupp_ssid_decode(const char *in
, char *out
, int outlen
)
2002 (((x) >= 'a') ? ((x) - 'a' + 10) : \
2003 (((x) >= 'A') ? ((x) - 'A' + 10) : ((x) - '0')))
2009 if (len
+ 1 >= outlen
)
2019 out
[len
++] = '\n'; in
++;
2023 out
[len
++] = '\r'; in
++;
2027 out
[len
++] = '\t'; in
++;
2031 out
[len
++] = '\e'; in
++;
2035 if (isxdigit(*(in
+1)) && isxdigit(*(in
+2)))
2036 out
[len
++] = hex(*(in
+1)) * 16 + hex(*(in
+2));
2058 static int nl80211_get_scanlist(const char *ifname
, char *buf
, int *len
)
2060 int freq
, rssi
, qmax
, count
, mode
;
2062 char ssid
[129] = { 0 };
2063 char bssid
[18] = { 0 };
2064 char cipher
[256] = { 0 };
2066 /* Got a radioX pseudo interface, find some interface on it or create one */
2067 if (!strncmp(ifname
, "radio", 5))
2069 /* Reuse existing interface */
2070 if ((res
= nl80211_phy2ifname(ifname
)) != NULL
)
2072 return nl80211_get_scanlist(res
, buf
, len
);
2075 /* Need to spawn a temporary iface for scanning */
2076 else if ((res
= nl80211_ifadd(ifname
)) != NULL
)
2078 count
= nl80211_get_scanlist(res
, buf
, len
);
2084 struct iwinfo_scanlist_entry
*e
= (struct iwinfo_scanlist_entry
*)buf
;
2086 /* WPA supplicant */
2087 if ((res
= nl80211_wpactl_info(ifname
, "SCAN", "CTRL-EVENT-SCAN-RESULTS")))
2089 if ((res
= nl80211_wpactl_info(ifname
, "SCAN_RESULTS", NULL
)))
2091 nl80211_get_quality_max(ifname
, &qmax
);
2098 /* skip log lines */
2103 /* skip header line */
2107 if (sscanf(res
, "%17s %d %d %255s%*[ \t]%128[^\n]\n",
2108 bssid
, &freq
, &rssi
, cipher
, ssid
) < 5)
2110 /* skip malformed lines */
2114 e
->mac
[0] = strtol(&bssid
[0], NULL
, 16);
2115 e
->mac
[1] = strtol(&bssid
[3], NULL
, 16);
2116 e
->mac
[2] = strtol(&bssid
[6], NULL
, 16);
2117 e
->mac
[3] = strtol(&bssid
[9], NULL
, 16);
2118 e
->mac
[4] = strtol(&bssid
[12], NULL
, 16);
2119 e
->mac
[5] = strtol(&bssid
[15], NULL
, 16);
2122 wpasupp_ssid_decode(ssid
, e
->ssid
, sizeof(e
->ssid
));
2124 /* Mode (assume master) */
2125 if (strstr(cipher
,"[MESH]"))
2126 e
->mode
= IWINFO_OPMODE_MESHPOINT
;
2128 e
->mode
= IWINFO_OPMODE_MASTER
;
2131 e
->channel
= nl80211_freq2channel(freq
);
2139 /* The cfg80211 wext compat layer assumes a signal range
2140 * of -110 dBm to -40 dBm, the quality value is derived
2141 * by adding 110 to the signal level */
2144 else if (rssi
> -40)
2147 e
->quality
= (rssi
+ 110);
2155 e
->quality_max
= qmax
;
2158 nl80211_get_scancrypto(cipher
, &e
->crypto
);
2163 memset(ssid
, 0, sizeof(ssid
));
2164 memset(bssid
, 0, sizeof(bssid
));
2165 memset(cipher
, 0, sizeof(cipher
));
2168 /* advance to next line */
2169 while( *res
&& *res
++ != '\n' );
2173 *len
= count
* sizeof(struct iwinfo_scanlist_entry
);
2178 /* station / ad-hoc / monitor scan */
2179 else if (!nl80211_get_mode(ifname
, &mode
) &&
2180 (mode
== IWINFO_OPMODE_ADHOC
||
2181 mode
== IWINFO_OPMODE_MASTER
||
2182 mode
== IWINFO_OPMODE_CLIENT
||
2183 mode
== IWINFO_OPMODE_MONITOR
) &&
2184 iwinfo_ifup(ifname
))
2186 return nl80211_get_scanlist_nl(ifname
, buf
, len
);
2192 /* Got a temp interface, don't create yet another one */
2193 if (!strncmp(ifname
, "tmp.", 4))
2195 if (!iwinfo_ifup(ifname
))
2198 nl80211_get_scanlist_nl(ifname
, buf
, len
);
2199 iwinfo_ifdown(ifname
);
2203 /* Spawn a new scan interface */
2206 if (!(res
= nl80211_ifadd(ifname
)))
2211 /* if we can take the new interface up, the driver supports an
2212 * additional interface and there's no need to tear down the ap */
2213 if (iwinfo_ifup(res
))
2215 nl80211_get_scanlist_nl(res
, buf
, len
);
2219 /* driver cannot create secondary interface, take down ap
2221 else if (iwinfo_ifdown(ifname
) && iwinfo_ifup(res
))
2223 nl80211_get_scanlist_nl(res
, buf
, len
);
2225 iwinfo_ifup(ifname
);
2226 nl80211_hostapd_hup(ifname
);
2238 static int nl80211_get_freqlist_cb(struct nl_msg
*msg
, void *arg
)
2240 int bands_remain
, freqs_remain
;
2242 struct nl80211_array_buf
*arr
= arg
;
2243 struct iwinfo_freqlist_entry
*e
= arr
->buf
;
2245 struct nlattr
**attr
= nl80211_parse(msg
);
2246 struct nlattr
*bands
[NL80211_BAND_ATTR_MAX
+ 1];
2247 struct nlattr
*freqs
[NL80211_FREQUENCY_ATTR_MAX
+ 1];
2248 struct nlattr
*band
, *freq
;
2250 static struct nla_policy freq_policy
[NL80211_FREQUENCY_ATTR_MAX
+ 1] = {
2251 [NL80211_FREQUENCY_ATTR_FREQ
] = { .type
= NLA_U32
},
2252 [NL80211_FREQUENCY_ATTR_DISABLED
] = { .type
= NLA_FLAG
},
2253 [NL80211_FREQUENCY_ATTR_PASSIVE_SCAN
] = { .type
= NLA_FLAG
},
2254 [NL80211_FREQUENCY_ATTR_NO_IBSS
] = { .type
= NLA_FLAG
},
2255 [NL80211_FREQUENCY_ATTR_RADAR
] = { .type
= NLA_FLAG
},
2256 [NL80211_FREQUENCY_ATTR_MAX_TX_POWER
] = { .type
= NLA_U32
},
2259 nla_for_each_nested(band
, attr
[NL80211_ATTR_WIPHY_BANDS
], bands_remain
)
2261 nla_parse(bands
, NL80211_BAND_ATTR_MAX
,
2262 nla_data(band
), nla_len(band
), NULL
);
2264 nla_for_each_nested(freq
, bands
[NL80211_BAND_ATTR_FREQS
], freqs_remain
)
2266 nla_parse(freqs
, NL80211_FREQUENCY_ATTR_MAX
,
2267 nla_data(freq
), nla_len(freq
), NULL
);
2269 if (!freqs
[NL80211_FREQUENCY_ATTR_FREQ
] ||
2270 freqs
[NL80211_FREQUENCY_ATTR_DISABLED
])
2273 e
->mhz
= nla_get_u32(freqs
[NL80211_FREQUENCY_ATTR_FREQ
]);
2274 e
->channel
= nl80211_freq2channel(e
->mhz
);
2277 freqs
[NL80211_FREQUENCY_ATTR_PASSIVE_SCAN
] ||
2278 freqs
[NL80211_FREQUENCY_ATTR_NO_IBSS
] ||
2279 freqs
[NL80211_FREQUENCY_ATTR_RADAR
]
2290 static int nl80211_get_freqlist(const char *ifname
, char *buf
, int *len
)
2292 struct nl80211_msg_conveyor
*req
;
2293 struct nl80211_array_buf arr
= { .buf
= buf
, .count
= 0 };
2295 req
= nl80211_msg(ifname
, NL80211_CMD_GET_WIPHY
, 0);
2298 nl80211_send(req
, nl80211_get_freqlist_cb
, &arr
);
2304 *len
= arr
.count
* sizeof(struct iwinfo_freqlist_entry
);
2311 static int nl80211_get_country_cb(struct nl_msg
*msg
, void *arg
)
2314 struct nlattr
**attr
= nl80211_parse(msg
);
2316 if (attr
[NL80211_ATTR_REG_ALPHA2
])
2317 memcpy(buf
, nla_data(attr
[NL80211_ATTR_REG_ALPHA2
]), 2);
2324 static int nl80211_get_country(const char *ifname
, char *buf
)
2327 struct nl80211_msg_conveyor
*req
;
2329 req
= nl80211_msg(ifname
, NL80211_CMD_GET_REG
, 0);
2332 nl80211_send(req
, nl80211_get_country_cb
, buf
);
2342 static int nl80211_get_countrylist(const char *ifname
, char *buf
, int *len
)
2345 struct iwinfo_country_entry
*e
= (struct iwinfo_country_entry
*)buf
;
2346 const struct iwinfo_iso3166_label
*l
;
2348 for (l
= IWINFO_ISO3166_NAMES
, count
= 0; l
->iso3166
; l
++, e
++, count
++)
2350 e
->iso3166
= l
->iso3166
;
2351 e
->ccode
[0] = (l
->iso3166
/ 256);
2352 e
->ccode
[1] = (l
->iso3166
% 256);
2355 *len
= (count
* sizeof(struct iwinfo_country_entry
));
2359 static int nl80211_get_hwmodelist_cb(struct nl_msg
*msg
, void *arg
)
2362 int bands_remain
, freqs_remain
;
2364 uint32_t vht_caps
= 0;
2365 struct nlattr
**attr
= nl80211_parse(msg
);
2366 struct nlattr
*bands
[NL80211_BAND_ATTR_MAX
+ 1];
2367 struct nlattr
*freqs
[NL80211_FREQUENCY_ATTR_MAX
+ 1];
2368 struct nlattr
*band
, *freq
;
2372 if (attr
[NL80211_ATTR_WIPHY_BANDS
])
2374 nla_for_each_nested(band
, attr
[NL80211_ATTR_WIPHY_BANDS
], bands_remain
)
2376 nla_parse(bands
, NL80211_BAND_ATTR_MAX
,
2377 nla_data(band
), nla_len(band
), NULL
);
2379 if (bands
[NL80211_BAND_ATTR_HT_CAPA
])
2380 caps
= nla_get_u16(bands
[NL80211_BAND_ATTR_HT_CAPA
]);
2382 /* Treat any nonzero capability as 11n */
2384 *modes
|= IWINFO_80211_N
;
2386 nla_for_each_nested(freq
, bands
[NL80211_BAND_ATTR_FREQS
],
2389 nla_parse(freqs
, NL80211_FREQUENCY_ATTR_MAX
,
2390 nla_data(freq
), nla_len(freq
), NULL
);
2392 if (!freqs
[NL80211_FREQUENCY_ATTR_FREQ
])
2395 if (nla_get_u32(freqs
[NL80211_FREQUENCY_ATTR_FREQ
]) < 2485)
2397 *modes
|= IWINFO_80211_B
;
2398 *modes
|= IWINFO_80211_G
;
2400 else if (bands
[NL80211_BAND_ATTR_VHT_CAPA
])
2402 vht_caps
= nla_get_u32(bands
[NL80211_BAND_ATTR_VHT_CAPA
]);
2404 /* Treat any nonzero capability as 11ac */
2406 *modes
|= IWINFO_80211_AC
;
2408 else if (!(*modes
& IWINFO_80211_AC
))
2410 *modes
|= IWINFO_80211_A
;
2419 static int nl80211_get_hwmodelist(const char *ifname
, int *buf
)
2421 struct nl80211_msg_conveyor
*req
;
2423 req
= nl80211_msg(ifname
, NL80211_CMD_GET_WIPHY
, 0);
2426 nl80211_send(req
, nl80211_get_hwmodelist_cb
, buf
);
2430 return *buf
? 0 : -1;
2433 static int nl80211_get_ifcomb_cb(struct nl_msg
*msg
, void *arg
)
2435 struct nlattr
**attr
= nl80211_parse(msg
);
2436 struct nlattr
*comb
;
2438 int comb_rem
, limit_rem
, mode_rem
;
2441 if (!attr
[NL80211_ATTR_INTERFACE_COMBINATIONS
])
2444 nla_for_each_nested(comb
, attr
[NL80211_ATTR_INTERFACE_COMBINATIONS
], comb_rem
)
2446 static struct nla_policy iface_combination_policy
[NUM_NL80211_IFACE_COMB
] = {
2447 [NL80211_IFACE_COMB_LIMITS
] = { .type
= NLA_NESTED
},
2448 [NL80211_IFACE_COMB_MAXNUM
] = { .type
= NLA_U32
},
2450 struct nlattr
*tb_comb
[NUM_NL80211_IFACE_COMB
+1];
2451 static struct nla_policy iface_limit_policy
[NUM_NL80211_IFACE_LIMIT
] = {
2452 [NL80211_IFACE_LIMIT_TYPES
] = { .type
= NLA_NESTED
},
2453 [NL80211_IFACE_LIMIT_MAX
] = { .type
= NLA_U32
},
2455 struct nlattr
*tb_limit
[NUM_NL80211_IFACE_LIMIT
+1];
2456 struct nlattr
*limit
;
2458 nla_parse_nested(tb_comb
, NUM_NL80211_IFACE_COMB
, comb
, iface_combination_policy
);
2460 if (!tb_comb
[NL80211_IFACE_COMB_LIMITS
])
2463 nla_for_each_nested(limit
, tb_comb
[NL80211_IFACE_COMB_LIMITS
], limit_rem
)
2465 struct nlattr
*mode
;
2467 nla_parse_nested(tb_limit
, NUM_NL80211_IFACE_LIMIT
, limit
, iface_limit_policy
);
2469 if (!tb_limit
[NL80211_IFACE_LIMIT_TYPES
] ||
2470 !tb_limit
[NL80211_IFACE_LIMIT_MAX
])
2473 if (nla_get_u32(tb_limit
[NL80211_IFACE_LIMIT_MAX
]) < 2)
2476 nla_for_each_nested(mode
, tb_limit
[NL80211_IFACE_LIMIT_TYPES
], mode_rem
) {
2477 if (nla_type(mode
) == NL80211_IFTYPE_AP
)
2486 static int nl80211_get_mbssid_support(const char *ifname
, int *buf
)
2488 struct nl80211_msg_conveyor
*req
;
2490 req
= nl80211_msg(ifname
, NL80211_CMD_GET_WIPHY
, 0);
2494 nl80211_send(req
, nl80211_get_ifcomb_cb
, buf
);
2499 static int nl80211_get_hardware_id(const char *ifname
, char *buf
)
2504 /* Got a radioX pseudo interface, find some interface on it or create one */
2505 if (!strncmp(ifname
, "radio", 5))
2507 /* Reuse existing interface */
2508 if ((res
= nl80211_phy2ifname(ifname
)) != NULL
)
2510 rv
= wext_ops
.hardware_id(res
, buf
);
2513 /* Need to spawn a temporary iface for finding IDs */
2514 else if ((res
= nl80211_ifadd(ifname
)) != NULL
)
2516 rv
= wext_ops
.hardware_id(res
, buf
);
2522 rv
= wext_ops
.hardware_id(ifname
, buf
);
2525 /* Failed to obtain hardware IDs, search board config */
2528 rv
= iwinfo_hardware_id_from_mtd((struct iwinfo_hardware_id
*)buf
);
2534 static const struct iwinfo_hardware_entry
*
2535 nl80211_get_hardware_entry(const char *ifname
)
2537 struct iwinfo_hardware_id id
;
2539 if (nl80211_get_hardware_id(ifname
, (char *)&id
))
2542 return iwinfo_hardware(&id
);
2545 static int nl80211_get_hardware_name(const char *ifname
, char *buf
)
2547 const struct iwinfo_hardware_entry
*hw
;
2549 if (!(hw
= nl80211_get_hardware_entry(ifname
)))
2550 sprintf(buf
, "Generic MAC80211");
2552 sprintf(buf
, "%s %s", hw
->vendor_name
, hw
->device_name
);
2557 static int nl80211_get_txpower_offset(const char *ifname
, int *buf
)
2559 const struct iwinfo_hardware_entry
*hw
;
2561 if (!(hw
= nl80211_get_hardware_entry(ifname
)))
2564 *buf
= hw
->txpower_offset
;
2568 static int nl80211_get_frequency_offset(const char *ifname
, int *buf
)
2570 const struct iwinfo_hardware_entry
*hw
;
2572 if (!(hw
= nl80211_get_hardware_entry(ifname
)))
2575 *buf
= hw
->frequency_offset
;
2579 static int nl80211_lookup_phyname(const char *section
, char *buf
)
2583 if ((idx
= nl80211_phy_idx_from_uci(section
)) < 0)
2586 sprintf(buf
, "phy%d", idx
);
2590 const struct iwinfo_ops nl80211_ops
= {
2592 .probe
= nl80211_probe
,
2593 .channel
= nl80211_get_channel
,
2594 .frequency
= nl80211_get_frequency
,
2595 .frequency_offset
= nl80211_get_frequency_offset
,
2596 .txpower
= nl80211_get_txpower
,
2597 .txpower_offset
= nl80211_get_txpower_offset
,
2598 .bitrate
= nl80211_get_bitrate
,
2599 .signal
= nl80211_get_signal
,
2600 .noise
= nl80211_get_noise
,
2601 .quality
= nl80211_get_quality
,
2602 .quality_max
= nl80211_get_quality_max
,
2603 .mbssid_support
= nl80211_get_mbssid_support
,
2604 .hwmodelist
= nl80211_get_hwmodelist
,
2605 .mode
= nl80211_get_mode
,
2606 .ssid
= nl80211_get_ssid
,
2607 .bssid
= nl80211_get_bssid
,
2608 .country
= nl80211_get_country
,
2609 .hardware_id
= nl80211_get_hardware_id
,
2610 .hardware_name
= nl80211_get_hardware_name
,
2611 .encryption
= nl80211_get_encryption
,
2612 .phyname
= nl80211_get_phyname
,
2613 .assoclist
= nl80211_get_assoclist
,
2614 .txpwrlist
= nl80211_get_txpwrlist
,
2615 .scanlist
= nl80211_get_scanlist
,
2616 .freqlist
= nl80211_get_freqlist
,
2617 .countrylist
= nl80211_get_countrylist
,
2618 .lookup_phy
= nl80211_lookup_phyname
,
2619 .close
= nl80211_close