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.
30 #include "iwinfo_nl80211.h"
32 #define min(x, y) ((x) < (y)) ? (x) : (y)
34 static struct nl80211_state *nls = NULL;
36 static void nl80211_close(void)
41 genl_family_put(nls->nlctrl);
44 genl_family_put(nls->nl80211);
47 nl_socket_free(nls->nl_sock);
50 nl_cache_free(nls->nl_cache);
57 static int nl80211_init(void)
63 nls = malloc(sizeof(struct nl80211_state));
69 memset(nls, 0, sizeof(*nls));
71 nls->nl_sock = nl_socket_alloc();
77 if (genl_connect(nls->nl_sock)) {
82 fd = nl_socket_get_fd(nls->nl_sock);
83 if (fcntl(fd, F_SETFD, fcntl(fd, F_GETFD) | FD_CLOEXEC) < 0) {
88 if (genl_ctrl_alloc_cache(nls->nl_sock, &nls->nl_cache)) {
93 nls->nl80211 = genl_ctrl_search_by_name(nls->nl_cache, "nl80211");
99 nls->nlctrl = genl_ctrl_search_by_name(nls->nl_cache, "nlctrl");
114 static int nl80211_readint(const char *path)
120 if ((fd = open(path, O_RDONLY)) > -1)
122 if (read(fd, buffer, sizeof(buffer)) > 0)
131 static int nl80211_readstr(const char *path, char *buffer, int length)
136 if ((fd = open(path, O_RDONLY)) > -1)
138 if ((rv = read(fd, buffer, length - 1)) > 0)
140 if (buffer[rv - 1] == '\n')
153 static int nl80211_msg_error(struct sockaddr_nl *nla,
154 struct nlmsgerr *err, void *arg)
161 static int nl80211_msg_finish(struct nl_msg *msg, void *arg)
168 static int nl80211_msg_ack(struct nl_msg *msg, void *arg)
175 static int nl80211_msg_response(struct nl_msg *msg, void *arg)
180 static void nl80211_free(struct nl80211_msg_conveyor *cv)
195 static struct nl80211_msg_conveyor * nl80211_new(struct genl_family *family,
198 static struct nl80211_msg_conveyor cv;
200 struct nl_msg *req = NULL;
201 struct nl_cb *cb = NULL;
207 cb = nl_cb_alloc(NL_CB_DEFAULT);
211 genlmsg_put(req, 0, 0, genl_family_get_id(family), 0, flags, cmd, 0);
228 static struct nl80211_msg_conveyor * nl80211_ctl(int cmd, int flags)
230 if (nl80211_init() < 0)
233 return nl80211_new(nls->nlctrl, cmd, flags);
236 static int nl80211_phy_idx_from_uci_path(struct uci_section *s)
243 opt = uci_lookup_option_string(uci_ctx, s, "path");
247 snprintf(buf, sizeof(buf), "/sys/devices/%s/ieee80211/*/index", opt); /**/
248 if (glob(buf, 0, NULL, &gl))
252 idx = nl80211_readint(gl.gl_pathv[0]);
259 static int nl80211_phy_idx_from_uci_macaddr(struct uci_section *s)
266 opt = uci_lookup_option_string(uci_ctx, s, "macaddr");
270 snprintf(buf, sizeof(buf), "/sys/class/ieee80211/*"); /**/
271 if (glob(buf, 0, NULL, &gl))
274 for (i = 0; i < gl.gl_pathc; i++)
276 snprintf(buf, sizeof(buf), "%s/macaddress", gl.gl_pathv[i]);
277 if (nl80211_readstr(buf, buf, sizeof(buf)) <= 0)
280 if (fnmatch(opt, buf, FNM_CASEFOLD))
283 snprintf(buf, sizeof(buf), "%s/index", gl.gl_pathv[i]);
284 if ((idx = nl80211_readint(buf)) > -1)
293 static int nl80211_phy_idx_from_uci_phy(struct uci_section *s)
298 opt = uci_lookup_option_string(uci_ctx, s, "phy");
302 snprintf(buf, sizeof(buf), "/sys/class/ieee80211/%s/index", opt);
303 return nl80211_readint(buf);
306 static int nl80211_phy_idx_from_uci(const char *name)
308 struct uci_section *s;
311 s = iwinfo_uci_get_radio(name, "mac80211");
315 idx = nl80211_phy_idx_from_uci_path(s);
318 idx = nl80211_phy_idx_from_uci_macaddr(s);
321 idx = nl80211_phy_idx_from_uci_phy(s);
328 static struct nl80211_msg_conveyor * nl80211_msg(const char *ifname,
331 int ifidx = -1, phyidx = -1;
332 struct nl80211_msg_conveyor *cv;
337 if (nl80211_init() < 0)
340 if (!strncmp(ifname, "phy", 3))
341 phyidx = atoi(&ifname[3]);
342 else if (!strncmp(ifname, "radio", 5))
343 phyidx = nl80211_phy_idx_from_uci(ifname);
344 else if (!strncmp(ifname, "mon.", 4))
345 ifidx = if_nametoindex(&ifname[4]);
347 ifidx = if_nametoindex(ifname);
349 /* Valid ifidx must be greater than 0 */
350 if ((ifidx <= 0) && (phyidx < 0))
353 cv = nl80211_new(nls->nl80211, cmd, flags);
358 NLA_PUT_U32(cv->msg, NL80211_ATTR_IFINDEX, ifidx);
361 NLA_PUT_U32(cv->msg, NL80211_ATTR_WIPHY, phyidx);
370 static struct nl80211_msg_conveyor * nl80211_send(
371 struct nl80211_msg_conveyor *cv,
372 int (*cb_func)(struct nl_msg *, void *), void *cb_arg
374 static struct nl80211_msg_conveyor rcv;
378 nl_cb_set(cv->cb, NL_CB_VALID, NL_CB_CUSTOM, cb_func, cb_arg);
380 nl_cb_set(cv->cb, NL_CB_VALID, NL_CB_CUSTOM, nl80211_msg_response, &rcv);
382 if (nl_send_auto_complete(nls->nl_sock, cv->msg) < 0)
385 nl_cb_err(cv->cb, NL_CB_CUSTOM, nl80211_msg_error, &err);
386 nl_cb_set(cv->cb, NL_CB_FINISH, NL_CB_CUSTOM, nl80211_msg_finish, &err);
387 nl_cb_set(cv->cb, NL_CB_ACK, NL_CB_CUSTOM, nl80211_msg_ack, &err);
390 nl_recvmsgs(nls->nl_sock, cv->cb);
401 static struct nlattr ** nl80211_parse(struct nl_msg *msg)
403 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
404 static struct nlattr *attr[NL80211_ATTR_MAX + 1];
406 nla_parse(attr, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
407 genlmsg_attrlen(gnlh, 0), NULL);
413 static int nl80211_subscribe_cb(struct nl_msg *msg, void *arg)
415 struct nl80211_group_conveyor *cv = arg;
417 struct nlattr **attr = nl80211_parse(msg);
418 struct nlattr *mgrpinfo[CTRL_ATTR_MCAST_GRP_MAX + 1];
422 if (!attr[CTRL_ATTR_MCAST_GROUPS])
425 nla_for_each_nested(mgrp, attr[CTRL_ATTR_MCAST_GROUPS], mgrpidx)
427 nla_parse(mgrpinfo, CTRL_ATTR_MCAST_GRP_MAX,
428 nla_data(mgrp), nla_len(mgrp), NULL);
430 if (mgrpinfo[CTRL_ATTR_MCAST_GRP_ID] &&
431 mgrpinfo[CTRL_ATTR_MCAST_GRP_NAME] &&
432 !strncmp(nla_data(mgrpinfo[CTRL_ATTR_MCAST_GRP_NAME]),
433 cv->name, nla_len(mgrpinfo[CTRL_ATTR_MCAST_GRP_NAME])))
435 cv->id = nla_get_u32(mgrpinfo[CTRL_ATTR_MCAST_GRP_ID]);
443 static int nl80211_subscribe(const char *family, const char *group)
445 struct nl80211_group_conveyor cv = { .name = group, .id = -ENOENT };
446 struct nl80211_msg_conveyor *req;
448 req = nl80211_ctl(CTRL_CMD_GETFAMILY, 0);
451 NLA_PUT_STRING(req->msg, CTRL_ATTR_FAMILY_NAME, family);
452 nl80211_send(req, nl80211_subscribe_cb, &cv);
458 return nl_socket_add_membership(nls->nl_sock, cv.id);
462 static int nl80211_wait_cb(struct nl_msg *msg, void *arg)
464 struct nl80211_event_conveyor *cv = arg;
465 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
467 if (gnlh->cmd == cv->wait)
468 cv->recv = gnlh->cmd;
473 static int nl80211_wait_seq_check(struct nl_msg *msg, void *arg)
478 static int nl80211_wait(const char *family, const char *group, int cmd)
480 struct nl80211_event_conveyor cv = { .wait = cmd };
483 if (nl80211_subscribe(family, group))
486 cb = nl_cb_alloc(NL_CB_DEFAULT);
491 nl_cb_set(cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, nl80211_wait_seq_check, NULL);
492 nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM, nl80211_wait_cb, &cv );
495 nl_recvmsgs(nls->nl_sock, cb);
503 static int nl80211_freq2channel(int freq)
507 else if (freq < 2484)
508 return (freq - 2407) / 5;
509 else if (freq >= 4910 && freq <= 4980)
510 return (freq - 4000) / 5;
512 return (freq - 5000) / 5;
515 static int nl80211_channel2freq(int channel, const char *band)
517 if (!band || band[0] != 'a')
521 else if (channel < 14)
522 return (channel * 5) + 2407;
526 if (channel >= 182 && channel <= 196)
527 return (channel * 5) + 4000;
529 return (channel * 5) + 5000;
535 static int nl80211_ifname2phy_cb(struct nl_msg *msg, void *arg)
538 struct nlattr **attr = nl80211_parse(msg);
540 if (attr[NL80211_ATTR_WIPHY_NAME])
541 memcpy(buf, nla_data(attr[NL80211_ATTR_WIPHY_NAME]),
542 nla_len(attr[NL80211_ATTR_WIPHY_NAME]));
549 static char * nl80211_ifname2phy(const char *ifname)
551 static char phy[32] = { 0 };
552 struct nl80211_msg_conveyor *req;
554 memset(phy, 0, sizeof(phy));
556 req = nl80211_msg(ifname, NL80211_CMD_GET_WIPHY, 0);
559 nl80211_send(req, nl80211_ifname2phy_cb, phy);
563 return phy[0] ? phy : NULL;
566 static char * nl80211_phy2ifname(const char *ifname)
568 int ifidx = -1, cifidx = -1, phyidx = -1;
570 static char nif[IFNAMSIZ] = { 0 };
575 /* Only accept phy name of the form phy%d or radio%d */
578 else if (!strncmp(ifname, "phy", 3))
579 phyidx = atoi(&ifname[3]);
580 else if (!strncmp(ifname, "radio", 5))
581 phyidx = nl80211_phy_idx_from_uci(ifname);
585 memset(nif, 0, sizeof(nif));
589 if ((d = opendir("/sys/class/net")) != NULL)
591 while ((e = readdir(d)) != NULL)
593 snprintf(buffer, sizeof(buffer),
594 "/sys/class/net/%s/phy80211/index", e->d_name);
596 if (nl80211_readint(buffer) == phyidx)
598 snprintf(buffer, sizeof(buffer),
599 "/sys/class/net/%s/ifindex", e->d_name);
601 if ((cifidx = nl80211_readint(buffer)) >= 0 &&
602 ((ifidx < 0) || (cifidx < ifidx)))
605 strncpy(nif, e->d_name, sizeof(nif));
614 return nif[0] ? nif : NULL;
617 static int nl80211_get_mode_cb(struct nl_msg *msg, void *arg)
620 struct nlattr **tb = nl80211_parse(msg);
621 const int ifmodes[NL80211_IFTYPE_MAX + 1] = {
622 IWINFO_OPMODE_UNKNOWN, /* unspecified */
623 IWINFO_OPMODE_ADHOC, /* IBSS */
624 IWINFO_OPMODE_CLIENT, /* managed */
625 IWINFO_OPMODE_MASTER, /* AP */
626 IWINFO_OPMODE_AP_VLAN, /* AP/VLAN */
627 IWINFO_OPMODE_WDS, /* WDS */
628 IWINFO_OPMODE_MONITOR, /* monitor */
629 IWINFO_OPMODE_MESHPOINT, /* mesh point */
630 IWINFO_OPMODE_P2P_CLIENT, /* P2P-client */
631 IWINFO_OPMODE_P2P_GO, /* P2P-GO */
634 if (tb[NL80211_ATTR_IFTYPE])
635 *mode = ifmodes[nla_get_u32(tb[NL80211_ATTR_IFTYPE])];
641 static int nl80211_get_mode(const char *ifname, int *buf)
644 struct nl80211_msg_conveyor *req;
646 res = nl80211_phy2ifname(ifname);
647 req = nl80211_msg(res ? res : ifname, NL80211_CMD_GET_INTERFACE, 0);
648 *buf = IWINFO_OPMODE_UNKNOWN;
652 nl80211_send(req, nl80211_get_mode_cb, buf);
656 return (*buf == IWINFO_OPMODE_UNKNOWN) ? -1 : 0;
659 static int __nl80211_hostapd_query(const char *ifname, ...)
662 char *phy, *search, *dest, *key, *val, buf[128];
663 int len, mode, found = 0, match = 1;
666 if (nl80211_get_mode(ifname, &mode))
669 if (mode != IWINFO_OPMODE_MASTER && mode != IWINFO_OPMODE_AP_VLAN)
672 phy = nl80211_ifname2phy(ifname);
677 snprintf(buf, sizeof(buf), "/var/run/hostapd-%s.conf", phy);
678 fp = fopen(buf, "r");
683 va_start(ap, ifname);
685 /* clear all destination buffers */
688 while ((search = va_arg(ap_cur, char *)) != NULL)
690 dest = va_arg(ap_cur, char *);
691 len = va_arg(ap_cur, int);
693 memset(dest, 0, len);
698 /* iterate applicable lines and copy found values into dest buffers */
699 while (fgets(buf, sizeof(buf), fp))
701 key = strtok(buf, " =\t\n");
702 val = strtok(NULL, "\n");
704 if (!key || !val || !*key || *key == '#')
707 if (!strcmp(key, "interface") || !strcmp(key, "bss"))
708 match = !strcmp(ifname, val);
715 while ((search = va_arg(ap_cur, char *)) != NULL)
717 dest = va_arg(ap_cur, char *);
718 len = va_arg(ap_cur, int);
720 if (!strcmp(search, key))
722 strncpy(dest, val, len - 1);
738 #define nl80211_hostapd_query(ifname, ...) \
739 __nl80211_hostapd_query(ifname, ##__VA_ARGS__, NULL)
742 static inline int nl80211_wpactl_recv(int sock, char *buf, int blen)
745 struct timeval tv = { 0, 256000 };
750 memset(buf, 0, blen);
752 if (select(sock + 1, &rfds, NULL, NULL, &tv) < 0)
755 if (!FD_ISSET(sock, &rfds))
758 return recv(sock, buf, blen - 1, 0);
761 static int nl80211_wpactl_connect(const char *ifname, struct sockaddr_un *local)
763 struct sockaddr_un remote = { 0 };
764 size_t remote_length, local_length;
766 int sock = socket(PF_UNIX, SOCK_DGRAM, 0);
770 remote.sun_family = AF_UNIX;
771 remote_length = sizeof(remote.sun_family) +
772 sprintf(remote.sun_path, "/var/run/wpa_supplicant-%s/%s",
775 if (fcntl(sock, F_SETFD, fcntl(sock, F_GETFD) | FD_CLOEXEC) < 0)
781 if (connect(sock, (struct sockaddr *)&remote, remote_length))
783 remote_length = sizeof(remote.sun_family) +
784 sprintf(remote.sun_path, "/var/run/wpa_supplicant/%s", ifname);
786 if (connect(sock, (struct sockaddr *)&remote, remote_length))
793 local->sun_family = AF_UNIX;
794 local_length = sizeof(local->sun_family) +
795 sprintf(local->sun_path, "/var/run/iwinfo-%s-%d", ifname, getpid());
797 if (bind(sock, (struct sockaddr *)local, local_length) < 0)
806 static int __nl80211_wpactl_query(const char *ifname, ...)
809 struct sockaddr_un local = { 0 };
810 int len, mode, found = 0, sock = -1;
811 char *search, *dest, *key, *val, *line, *pos, buf[512];
813 if (nl80211_get_mode(ifname, &mode))
816 if (mode != IWINFO_OPMODE_CLIENT && mode != IWINFO_OPMODE_ADHOC)
819 sock = nl80211_wpactl_connect(ifname, &local);
824 va_start(ap, ifname);
826 /* clear all destination buffers */
829 while ((search = va_arg(ap_cur, char *)) != NULL)
831 dest = va_arg(ap_cur, char *);
832 len = va_arg(ap_cur, int);
834 memset(dest, 0, len);
839 send(sock, "STATUS", 6, 0);
843 if (nl80211_wpactl_recv(sock, buf, sizeof(buf)) <= 0)
849 for (line = strtok_r(buf, "\n", &pos);
851 line = strtok_r(NULL, "\n", &pos))
853 key = strtok(line, "=");
854 val = strtok(NULL, "\n");
861 while ((search = va_arg(ap_cur, char *)) != NULL)
863 dest = va_arg(ap_cur, char *);
864 len = va_arg(ap_cur, int);
866 if (!strcmp(search, key))
868 strncpy(dest, val, len - 1);
883 unlink(local.sun_path);
888 #define nl80211_wpactl_query(ifname, ...) \
889 __nl80211_wpactl_query(ifname, ##__VA_ARGS__, NULL)
892 static char * nl80211_ifadd(const char *ifname)
894 char *rv = NULL, path[PATH_MAX];
895 static char nif[IFNAMSIZ] = { 0 };
896 struct nl80211_msg_conveyor *req;
899 req = nl80211_msg(ifname, NL80211_CMD_NEW_INTERFACE, 0);
902 snprintf(nif, sizeof(nif), "tmp.%s", ifname);
904 NLA_PUT_STRING(req->msg, NL80211_ATTR_IFNAME, nif);
905 NLA_PUT_U32(req->msg, NL80211_ATTR_IFTYPE, NL80211_IFTYPE_STATION);
907 nl80211_send(req, NULL, NULL);
909 snprintf(path, sizeof(path) - 1,
910 "/proc/sys/net/ipv6/conf/%s/disable_ipv6", nif);
912 if ((sysfs = fopen(path, "w")) != NULL)
914 fwrite("0\n", 1, 2, sysfs);
927 static void nl80211_ifdel(const char *ifname)
929 struct nl80211_msg_conveyor *req;
931 req = nl80211_msg(ifname, NL80211_CMD_DEL_INTERFACE, 0);
934 NLA_PUT_STRING(req->msg, NL80211_ATTR_IFNAME, ifname);
936 nl80211_send(req, NULL, NULL);
943 static void nl80211_hostapd_hup(const char *ifname)
947 char *phy = nl80211_ifname2phy(ifname);
951 snprintf(buf, sizeof(buf), "/var/run/wifi-%s.pid", phy);
952 if ((fd = open(buf, O_RDONLY)) > 0)
954 if (read(fd, buf, sizeof(buf)) > 0)
966 static int nl80211_probe(const char *ifname)
968 return !!nl80211_ifname2phy(ifname);
971 struct nl80211_ssid_bssid {
973 unsigned char bssid[7];
976 static int nl80211_get_ssid_bssid_cb(struct nl_msg *msg, void *arg)
980 struct nl80211_ssid_bssid *sb = arg;
981 struct nlattr **tb = nl80211_parse(msg);
982 struct nlattr *bss[NL80211_BSS_MAX + 1];
984 static struct nla_policy bss_policy[NL80211_BSS_MAX + 1] = {
985 [NL80211_BSS_INFORMATION_ELEMENTS] = { 0 },
986 [NL80211_BSS_STATUS] = { .type = NLA_U32 },
989 if (!tb[NL80211_ATTR_BSS] ||
990 nla_parse_nested(bss, NL80211_BSS_MAX, tb[NL80211_ATTR_BSS],
992 !bss[NL80211_BSS_BSSID] ||
993 !bss[NL80211_BSS_STATUS] ||
994 !bss[NL80211_BSS_INFORMATION_ELEMENTS])
999 switch (nla_get_u32(bss[NL80211_BSS_STATUS]))
1001 case NL80211_BSS_STATUS_ASSOCIATED:
1002 case NL80211_BSS_STATUS_AUTHENTICATED:
1003 case NL80211_BSS_STATUS_IBSS_JOINED:
1007 ie = nla_data(bss[NL80211_BSS_INFORMATION_ELEMENTS]);
1008 ielen = nla_len(bss[NL80211_BSS_INFORMATION_ELEMENTS]);
1010 while (ielen >= 2 && ielen >= ie[1])
1014 memcpy(sb->ssid, ie + 2, min(ie[1], IWINFO_ESSID_MAX_SIZE));
1025 memcpy(sb->bssid + 1, nla_data(bss[NL80211_BSS_BSSID]), 6);
1034 static int nl80211_get_ssid(const char *ifname, char *buf)
1037 struct nl80211_msg_conveyor *req;
1038 struct nl80211_ssid_bssid sb;
1040 /* try to find ssid from scan dump results */
1041 res = nl80211_phy2ifname(ifname);
1042 req = nl80211_msg(res ? res : ifname, NL80211_CMD_GET_SCAN, NLM_F_DUMP);
1044 sb.ssid = (unsigned char *)buf;
1049 nl80211_send(req, nl80211_get_ssid_bssid_cb, &sb);
1053 /* failed, try to find from hostapd info */
1055 nl80211_hostapd_query(ifname, "ssid", buf, IWINFO_ESSID_MAX_SIZE + 1);
1057 return (*buf == 0) ? -1 : 0;
1060 static int nl80211_get_bssid(const char *ifname, char *buf)
1062 char *res, bssid[sizeof("FF:FF:FF:FF:FF:FF\0")];
1063 struct nl80211_msg_conveyor *req;
1064 struct nl80211_ssid_bssid sb;
1066 /* try to find bssid from scan dump results */
1067 res = nl80211_phy2ifname(ifname);
1068 req = nl80211_msg(res ? res : ifname, NL80211_CMD_GET_SCAN, NLM_F_DUMP);
1075 nl80211_send(req, nl80211_get_ssid_bssid_cb, &sb);
1079 /* failed, try to find mac from hostapd info */
1080 if ((sb.bssid[0] == 0) &&
1081 nl80211_hostapd_query(ifname, "bssid", bssid, sizeof(bssid)))
1084 sb.bssid[1] = strtol(&bssid[0], NULL, 16);
1085 sb.bssid[2] = strtol(&bssid[3], NULL, 16);
1086 sb.bssid[3] = strtol(&bssid[6], NULL, 16);
1087 sb.bssid[4] = strtol(&bssid[9], NULL, 16);
1088 sb.bssid[5] = strtol(&bssid[12], NULL, 16);
1089 sb.bssid[6] = strtol(&bssid[15], NULL, 16);
1094 sprintf(buf, "%02X:%02X:%02X:%02X:%02X:%02X",
1095 sb.bssid[1], sb.bssid[2], sb.bssid[3],
1096 sb.bssid[4], sb.bssid[5], sb.bssid[6]);
1105 static int nl80211_get_frequency_scan_cb(struct nl_msg *msg, void *arg)
1108 struct nlattr **attr = nl80211_parse(msg);
1109 struct nlattr *binfo[NL80211_BSS_MAX + 1];
1111 static struct nla_policy bss_policy[NL80211_BSS_MAX + 1] = {
1112 [NL80211_BSS_FREQUENCY] = { .type = NLA_U32 },
1113 [NL80211_BSS_STATUS] = { .type = NLA_U32 },
1116 if (attr[NL80211_ATTR_BSS] &&
1117 !nla_parse_nested(binfo, NL80211_BSS_MAX,
1118 attr[NL80211_ATTR_BSS], bss_policy))
1120 if (binfo[NL80211_BSS_STATUS] && binfo[NL80211_BSS_FREQUENCY])
1121 *freq = nla_get_u32(binfo[NL80211_BSS_FREQUENCY]);
1127 static int nl80211_get_frequency_info_cb(struct nl_msg *msg, void *arg)
1130 struct nlattr **tb = nl80211_parse(msg);
1132 if (tb[NL80211_ATTR_WIPHY_FREQ])
1133 *freq = nla_get_u32(tb[NL80211_ATTR_WIPHY_FREQ]);
1138 static int nl80211_get_frequency(const char *ifname, int *buf)
1140 char *res, channel[4], hwmode[2];
1141 struct nl80211_msg_conveyor *req;
1143 /* try to find frequency from interface info */
1144 res = nl80211_phy2ifname(ifname);
1145 req = nl80211_msg(res ? res : ifname, NL80211_CMD_GET_INTERFACE, 0);
1150 nl80211_send(req, nl80211_get_frequency_info_cb, buf);
1154 /* failed, try to find frequency from hostapd info */
1156 nl80211_hostapd_query(ifname, "hw_mode", hwmode, sizeof(hwmode),
1157 "channel", channel, sizeof(channel)) == 2)
1159 *buf = nl80211_channel2freq(atoi(channel), hwmode);
1162 /* failed, try to find frequency from scan results */
1165 res = nl80211_phy2ifname(ifname);
1166 req = nl80211_msg(res ? res : ifname, NL80211_CMD_GET_SCAN, NLM_F_DUMP);
1170 nl80211_send(req, nl80211_get_frequency_scan_cb, buf);
1175 return (*buf == 0) ? -1 : 0;
1178 static int nl80211_get_channel(const char *ifname, int *buf)
1180 if (!nl80211_get_frequency(ifname, buf))
1182 *buf = nl80211_freq2channel(*buf);
1190 static int nl80211_get_txpower(const char *ifname, int *buf)
1194 char path[PATH_MAX];
1196 res = nl80211_ifname2phy(ifname);
1197 snprintf(path, sizeof(path), "/sys/kernel/debug/ieee80211/%s/power",
1198 res ? res : ifname);
1200 if ((*buf = nl80211_readint(path)) > -1)
1204 return wext_ops.txpower(ifname, buf);
1208 static int nl80211_fill_signal_cb(struct nl_msg *msg, void *arg)
1212 struct nl80211_rssi_rate *rr = arg;
1213 struct nlattr **attr = nl80211_parse(msg);
1214 struct nlattr *sinfo[NL80211_STA_INFO_MAX + 1];
1215 struct nlattr *rinfo[NL80211_RATE_INFO_MAX + 1];
1217 static struct nla_policy stats_policy[NL80211_STA_INFO_MAX + 1] = {
1218 [NL80211_STA_INFO_INACTIVE_TIME] = { .type = NLA_U32 },
1219 [NL80211_STA_INFO_RX_BYTES] = { .type = NLA_U32 },
1220 [NL80211_STA_INFO_TX_BYTES] = { .type = NLA_U32 },
1221 [NL80211_STA_INFO_RX_PACKETS] = { .type = NLA_U32 },
1222 [NL80211_STA_INFO_TX_PACKETS] = { .type = NLA_U32 },
1223 [NL80211_STA_INFO_SIGNAL] = { .type = NLA_U8 },
1224 [NL80211_STA_INFO_TX_BITRATE] = { .type = NLA_NESTED },
1225 [NL80211_STA_INFO_LLID] = { .type = NLA_U16 },
1226 [NL80211_STA_INFO_PLID] = { .type = NLA_U16 },
1227 [NL80211_STA_INFO_PLINK_STATE] = { .type = NLA_U8 },
1230 static struct nla_policy rate_policy[NL80211_RATE_INFO_MAX + 1] = {
1231 [NL80211_RATE_INFO_BITRATE] = { .type = NLA_U16 },
1232 [NL80211_RATE_INFO_MCS] = { .type = NLA_U8 },
1233 [NL80211_RATE_INFO_40_MHZ_WIDTH] = { .type = NLA_FLAG },
1234 [NL80211_RATE_INFO_SHORT_GI] = { .type = NLA_FLAG },
1237 if (attr[NL80211_ATTR_STA_INFO])
1239 if (!nla_parse_nested(sinfo, NL80211_STA_INFO_MAX,
1240 attr[NL80211_ATTR_STA_INFO], stats_policy))
1242 if (sinfo[NL80211_STA_INFO_SIGNAL])
1244 dbm = nla_get_u8(sinfo[NL80211_STA_INFO_SIGNAL]);
1245 rr->rssi = rr->rssi ? (int8_t)((rr->rssi + dbm) / 2) : dbm;
1248 if (sinfo[NL80211_STA_INFO_TX_BITRATE])
1250 if (!nla_parse_nested(rinfo, NL80211_RATE_INFO_MAX,
1251 sinfo[NL80211_STA_INFO_TX_BITRATE],
1254 if (rinfo[NL80211_RATE_INFO_BITRATE])
1256 mbit = nla_get_u16(rinfo[NL80211_RATE_INFO_BITRATE]);
1258 ? (int16_t)((rr->rate + mbit) / 2) : mbit;
1268 static void nl80211_fill_signal(const char *ifname, struct nl80211_rssi_rate *r)
1272 struct nl80211_msg_conveyor *req;
1277 if ((d = opendir("/sys/class/net")) != NULL)
1279 while ((de = readdir(d)) != NULL)
1281 if (!strncmp(de->d_name, ifname, strlen(ifname)) &&
1282 (!de->d_name[strlen(ifname)] ||
1283 !strncmp(&de->d_name[strlen(ifname)], ".sta", 4)))
1285 req = nl80211_msg(de->d_name, NL80211_CMD_GET_STATION,
1290 nl80211_send(req, nl80211_fill_signal_cb, r);
1300 static int nl80211_get_bitrate(const char *ifname, int *buf)
1302 struct nl80211_rssi_rate rr;
1304 nl80211_fill_signal(ifname, &rr);
1308 *buf = (rr.rate * 100);
1315 static int nl80211_get_signal(const char *ifname, int *buf)
1317 struct nl80211_rssi_rate rr;
1319 nl80211_fill_signal(ifname, &rr);
1330 static int nl80211_get_noise_cb(struct nl_msg *msg, void *arg)
1332 int8_t *noise = arg;
1333 struct nlattr **tb = nl80211_parse(msg);
1334 struct nlattr *si[NL80211_SURVEY_INFO_MAX + 1];
1336 static struct nla_policy sp[NL80211_SURVEY_INFO_MAX + 1] = {
1337 [NL80211_SURVEY_INFO_FREQUENCY] = { .type = NLA_U32 },
1338 [NL80211_SURVEY_INFO_NOISE] = { .type = NLA_U8 },
1341 if (!tb[NL80211_ATTR_SURVEY_INFO])
1344 if (nla_parse_nested(si, NL80211_SURVEY_INFO_MAX,
1345 tb[NL80211_ATTR_SURVEY_INFO], sp))
1348 if (!si[NL80211_SURVEY_INFO_NOISE])
1351 if (!*noise || si[NL80211_SURVEY_INFO_IN_USE])
1352 *noise = (int8_t)nla_get_u8(si[NL80211_SURVEY_INFO_NOISE]);
1358 static int nl80211_get_noise(const char *ifname, int *buf)
1361 struct nl80211_msg_conveyor *req;
1363 req = nl80211_msg(ifname, NL80211_CMD_GET_SURVEY, NLM_F_DUMP);
1368 nl80211_send(req, nl80211_get_noise_cb, &noise);
1381 static int nl80211_get_quality(const char *ifname, int *buf)
1385 if (!nl80211_get_signal(ifname, &signal))
1387 /* A positive signal level is usually just a quality
1388 * value, pass through as-is */
1394 /* The cfg80211 wext compat layer assumes a signal range
1395 * of -110 dBm to -40 dBm, the quality value is derived
1396 * by adding 110 to the signal level */
1401 else if (signal > -40)
1404 *buf = (signal + 110);
1413 static int nl80211_get_quality_max(const char *ifname, int *buf)
1415 /* The cfg80211 wext compat layer assumes a maximum
1422 static int nl80211_check_wepkey(const char *key)
1426 switch (strlen(key))
1430 return IWINFO_CIPHER_WEP40;
1434 return IWINFO_CIPHER_WEP104;
1441 static int nl80211_get_encryption(const char *ifname, char *buf)
1443 char wpa[2], wpa_key_mgmt[16], wpa_pairwise[16], wpa_groupwise[16];
1444 char auth_algs[2], wep_key0[27], wep_key1[27], wep_key2[27], wep_key3[27];
1446 struct iwinfo_crypto_entry *c = (struct iwinfo_crypto_entry *)buf;
1448 /* WPA supplicant */
1449 if (nl80211_wpactl_query(ifname,
1450 "pairwise_cipher", wpa_pairwise, sizeof(wpa_pairwise),
1451 "group_cipher", wpa_groupwise, sizeof(wpa_groupwise),
1452 "key_mgmt", wpa_key_mgmt, sizeof(wpa_key_mgmt)))
1455 if (!strcmp(wpa_key_mgmt, "NONE"))
1457 if (strstr(wpa_pairwise, "WEP-40"))
1458 c->pair_ciphers |= IWINFO_CIPHER_WEP40;
1459 else if (strstr(wpa_pairwise, "WEP-104"))
1460 c->pair_ciphers |= IWINFO_CIPHER_WEP104;
1462 if (strstr(wpa_groupwise, "WEP-40"))
1463 c->group_ciphers |= IWINFO_CIPHER_WEP40;
1464 else if (strstr(wpa_groupwise, "WEP-104"))
1465 c->group_ciphers |= IWINFO_CIPHER_WEP104;
1467 c->enabled = !!(c->pair_ciphers | c->group_ciphers);
1468 c->auth_suites |= IWINFO_KMGMT_NONE;
1469 c->auth_algs |= IWINFO_AUTH_OPEN; /* XXX: assumption */
1473 else if (strstr(wpa_key_mgmt, "WPA"))
1475 if (strstr(wpa_pairwise, "TKIP"))
1476 c->pair_ciphers |= IWINFO_CIPHER_TKIP;
1477 else if (strstr(wpa_pairwise, "CCMP"))
1478 c->pair_ciphers |= IWINFO_CIPHER_CCMP;
1479 else if (strstr(wpa_pairwise, "NONE"))
1480 c->pair_ciphers |= IWINFO_CIPHER_NONE;
1481 else if (strstr(wpa_pairwise, "WEP-40"))
1482 c->pair_ciphers |= IWINFO_CIPHER_WEP40;
1483 else if (strstr(wpa_pairwise, "WEP-104"))
1484 c->pair_ciphers |= IWINFO_CIPHER_WEP104;
1486 if (strstr(wpa_groupwise, "TKIP"))
1487 c->group_ciphers |= IWINFO_CIPHER_TKIP;
1488 else if (strstr(wpa_groupwise, "CCMP"))
1489 c->group_ciphers |= IWINFO_CIPHER_CCMP;
1490 else if (strstr(wpa_groupwise, "NONE"))
1491 c->group_ciphers |= IWINFO_CIPHER_NONE;
1492 else if (strstr(wpa_groupwise, "WEP-40"))
1493 c->group_ciphers |= IWINFO_CIPHER_WEP40;
1494 else if (strstr(wpa_groupwise, "WEP-104"))
1495 c->group_ciphers |= IWINFO_CIPHER_WEP104;
1497 if (strstr(wpa_key_mgmt, "WPA2"))
1499 else if (strstr(wpa_key_mgmt, "WPA"))
1502 if (strstr(wpa_key_mgmt, "PSK"))
1503 c->auth_suites |= IWINFO_KMGMT_PSK;
1504 else if (strstr(wpa_key_mgmt, "EAP") ||
1505 strstr(wpa_key_mgmt, "802.1X"))
1506 c->auth_suites |= IWINFO_KMGMT_8021x;
1507 else if (strstr(wpa_key_mgmt, "NONE"))
1508 c->auth_suites |= IWINFO_KMGMT_NONE;
1510 c->enabled = !!(c->wpa_version && c->auth_suites);
1517 else if (nl80211_hostapd_query(ifname,
1518 "wpa", wpa, sizeof(wpa),
1519 "wpa_key_mgmt", wpa_key_mgmt, sizeof(wpa_key_mgmt),
1520 "wpa_pairwise", wpa_pairwise, sizeof(wpa_pairwise),
1521 "auth_algs", auth_algs, sizeof(auth_algs),
1522 "wep_key0", wep_key0, sizeof(wep_key0),
1523 "wep_key1", wep_key1, sizeof(wep_key1),
1524 "wep_key2", wep_key2, sizeof(wep_key2),
1525 "wep_key3", wep_key3, sizeof(wep_key3)))
1527 c->wpa_version = wpa[0] ? atoi(wpa) : 0;
1529 if (wpa_key_mgmt[0])
1531 if (strstr(wpa_key_mgmt, "PSK"))
1532 c->auth_suites |= IWINFO_KMGMT_PSK;
1534 if (strstr(wpa_key_mgmt, "EAP"))
1535 c->auth_suites |= IWINFO_KMGMT_8021x;
1537 if (strstr(wpa_key_mgmt, "NONE"))
1538 c->auth_suites |= IWINFO_KMGMT_NONE;
1542 c->auth_suites |= IWINFO_KMGMT_PSK;
1545 if (wpa_pairwise[0])
1547 if (strstr(wpa_pairwise, "TKIP"))
1548 c->pair_ciphers |= IWINFO_CIPHER_TKIP;
1550 if (strstr(wpa_pairwise, "CCMP"))
1551 c->pair_ciphers |= IWINFO_CIPHER_CCMP;
1553 if (strstr(wpa_pairwise, "NONE"))
1554 c->pair_ciphers |= IWINFO_CIPHER_NONE;
1559 switch(atoi(auth_algs))
1562 c->auth_algs |= IWINFO_AUTH_OPEN;
1566 c->auth_algs |= IWINFO_AUTH_SHARED;
1570 c->auth_algs |= IWINFO_AUTH_OPEN;
1571 c->auth_algs |= IWINFO_AUTH_SHARED;
1575 c->pair_ciphers |= nl80211_check_wepkey(wep_key0);
1576 c->pair_ciphers |= nl80211_check_wepkey(wep_key1);
1577 c->pair_ciphers |= nl80211_check_wepkey(wep_key2);
1578 c->pair_ciphers |= nl80211_check_wepkey(wep_key3);
1581 c->group_ciphers = c->pair_ciphers;
1582 c->enabled = (c->wpa_version || c->pair_ciphers) ? 1 : 0;
1590 static int nl80211_get_phyname(const char *ifname, char *buf)
1594 name = nl80211_ifname2phy(ifname);
1601 else if ((name = nl80211_phy2ifname(ifname)) != NULL)
1603 name = nl80211_ifname2phy(name);
1607 strcpy(buf, ifname);
1616 static int nl80211_get_assoclist_cb(struct nl_msg *msg, void *arg)
1618 struct nl80211_array_buf *arr = arg;
1619 struct iwinfo_assoclist_entry *e = arr->buf;
1620 struct nlattr **attr = nl80211_parse(msg);
1621 struct nlattr *sinfo[NL80211_STA_INFO_MAX + 1];
1622 struct nlattr *rinfo[NL80211_RATE_INFO_MAX + 1];
1624 static struct nla_policy stats_policy[NL80211_STA_INFO_MAX + 1] = {
1625 [NL80211_STA_INFO_INACTIVE_TIME] = { .type = NLA_U32 },
1626 [NL80211_STA_INFO_RX_PACKETS] = { .type = NLA_U32 },
1627 [NL80211_STA_INFO_TX_PACKETS] = { .type = NLA_U32 },
1628 [NL80211_STA_INFO_RX_BITRATE] = { .type = NLA_NESTED },
1629 [NL80211_STA_INFO_TX_BITRATE] = { .type = NLA_NESTED },
1630 [NL80211_STA_INFO_SIGNAL] = { .type = NLA_U8 },
1633 static struct nla_policy rate_policy[NL80211_RATE_INFO_MAX + 1] = {
1634 [NL80211_RATE_INFO_BITRATE] = { .type = NLA_U16 },
1635 [NL80211_RATE_INFO_MCS] = { .type = NLA_U8 },
1636 [NL80211_RATE_INFO_40_MHZ_WIDTH] = { .type = NLA_FLAG },
1637 [NL80211_RATE_INFO_SHORT_GI] = { .type = NLA_FLAG },
1640 /* advance to end of array */
1642 memset(e, 0, sizeof(*e));
1644 if (attr[NL80211_ATTR_MAC])
1645 memcpy(e->mac, nla_data(attr[NL80211_ATTR_MAC]), 6);
1647 if (attr[NL80211_ATTR_STA_INFO] &&
1648 !nla_parse_nested(sinfo, NL80211_STA_INFO_MAX,
1649 attr[NL80211_ATTR_STA_INFO], stats_policy))
1651 if (sinfo[NL80211_STA_INFO_SIGNAL])
1652 e->signal = nla_get_u8(sinfo[NL80211_STA_INFO_SIGNAL]);
1654 if (sinfo[NL80211_STA_INFO_INACTIVE_TIME])
1655 e->inactive = nla_get_u32(sinfo[NL80211_STA_INFO_INACTIVE_TIME]);
1657 if (sinfo[NL80211_STA_INFO_RX_PACKETS])
1658 e->rx_packets = nla_get_u32(sinfo[NL80211_STA_INFO_RX_PACKETS]);
1660 if (sinfo[NL80211_STA_INFO_TX_PACKETS])
1661 e->tx_packets = nla_get_u32(sinfo[NL80211_STA_INFO_TX_PACKETS]);
1663 if (sinfo[NL80211_STA_INFO_RX_BITRATE] &&
1664 !nla_parse_nested(rinfo, NL80211_RATE_INFO_MAX,
1665 sinfo[NL80211_STA_INFO_RX_BITRATE], rate_policy))
1667 if (rinfo[NL80211_RATE_INFO_BITRATE])
1669 nla_get_u16(rinfo[NL80211_RATE_INFO_BITRATE]) * 100;
1671 if (rinfo[NL80211_RATE_INFO_MCS])
1672 e->rx_rate.mcs = nla_get_u8(rinfo[NL80211_RATE_INFO_MCS]);
1674 if (rinfo[NL80211_RATE_INFO_40_MHZ_WIDTH])
1675 e->rx_rate.is_40mhz = 1;
1677 if (rinfo[NL80211_RATE_INFO_SHORT_GI])
1678 e->rx_rate.is_short_gi = 1;
1681 if (sinfo[NL80211_STA_INFO_TX_BITRATE] &&
1682 !nla_parse_nested(rinfo, NL80211_RATE_INFO_MAX,
1683 sinfo[NL80211_STA_INFO_TX_BITRATE], rate_policy))
1685 if (rinfo[NL80211_RATE_INFO_BITRATE])
1687 nla_get_u16(rinfo[NL80211_RATE_INFO_BITRATE]) * 100;
1689 if (rinfo[NL80211_RATE_INFO_MCS])
1690 e->tx_rate.mcs = nla_get_u8(rinfo[NL80211_RATE_INFO_MCS]);
1692 if (rinfo[NL80211_RATE_INFO_40_MHZ_WIDTH])
1693 e->tx_rate.is_40mhz = 1;
1695 if (rinfo[NL80211_RATE_INFO_SHORT_GI])
1696 e->tx_rate.is_short_gi = 1;
1700 e->noise = 0; /* filled in by caller */
1706 static int nl80211_get_assoclist(const char *ifname, char *buf, int *len)
1711 struct nl80211_msg_conveyor *req;
1712 struct nl80211_array_buf arr = { .buf = buf, .count = 0 };
1713 struct iwinfo_assoclist_entry *e;
1715 if ((d = opendir("/sys/class/net")) != NULL)
1717 while ((de = readdir(d)) != NULL)
1719 if (!strncmp(de->d_name, ifname, strlen(ifname)) &&
1720 (!de->d_name[strlen(ifname)] ||
1721 !strncmp(&de->d_name[strlen(ifname)], ".sta", 4)))
1723 req = nl80211_msg(de->d_name, NL80211_CMD_GET_STATION,
1728 nl80211_send(req, nl80211_get_assoclist_cb, &arr);
1736 if (!nl80211_get_noise(ifname, &noise))
1737 for (i = 0, e = arr.buf; i < arr.count; i++, e++)
1740 *len = (arr.count * sizeof(struct iwinfo_assoclist_entry));
1747 static int nl80211_get_txpwrlist_cb(struct nl_msg *msg, void *arg)
1750 int ch_cur, ch_cmp, bands_remain, freqs_remain;
1752 struct nlattr **attr = nl80211_parse(msg);
1753 struct nlattr *bands[NL80211_BAND_ATTR_MAX + 1];
1754 struct nlattr *freqs[NL80211_FREQUENCY_ATTR_MAX + 1];
1755 struct nlattr *band, *freq;
1757 static struct nla_policy freq_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = {
1758 [NL80211_FREQUENCY_ATTR_FREQ] = { .type = NLA_U32 },
1759 [NL80211_FREQUENCY_ATTR_DISABLED] = { .type = NLA_FLAG },
1760 [NL80211_FREQUENCY_ATTR_PASSIVE_SCAN] = { .type = NLA_FLAG },
1761 [NL80211_FREQUENCY_ATTR_NO_IBSS] = { .type = NLA_FLAG },
1762 [NL80211_FREQUENCY_ATTR_RADAR] = { .type = NLA_FLAG },
1763 [NL80211_FREQUENCY_ATTR_MAX_TX_POWER] = { .type = NLA_U32 },
1766 ch_cur = *dbm_max; /* value int* is initialized with channel by caller */
1769 nla_for_each_nested(band, attr[NL80211_ATTR_WIPHY_BANDS], bands_remain)
1771 nla_parse(bands, NL80211_BAND_ATTR_MAX, nla_data(band),
1772 nla_len(band), NULL);
1774 nla_for_each_nested(freq, bands[NL80211_BAND_ATTR_FREQS], freqs_remain)
1776 nla_parse(freqs, NL80211_FREQUENCY_ATTR_MAX,
1777 nla_data(freq), nla_len(freq), freq_policy);
1779 ch_cmp = nl80211_freq2channel(nla_get_u32(
1780 freqs[NL80211_FREQUENCY_ATTR_FREQ]));
1782 if ((!ch_cur || (ch_cmp == ch_cur)) &&
1783 freqs[NL80211_FREQUENCY_ATTR_MAX_TX_POWER])
1785 *dbm_max = (int)(0.01 * nla_get_u32(
1786 freqs[NL80211_FREQUENCY_ATTR_MAX_TX_POWER]));
1796 static int nl80211_get_txpwrlist(const char *ifname, char *buf, int *len)
1799 int dbm_max = -1, dbm_cur, dbm_cnt;
1800 struct nl80211_msg_conveyor *req;
1801 struct iwinfo_txpwrlist_entry entry;
1803 if (nl80211_get_channel(ifname, &ch_cur))
1806 req = nl80211_msg(ifname, NL80211_CMD_GET_WIPHY, 0);
1809 /* initialize the value pointer with channel for callback */
1812 nl80211_send(req, nl80211_get_txpwrlist_cb, &dbm_max);
1818 for (dbm_cur = 0, dbm_cnt = 0;
1820 dbm_cur++, dbm_cnt++)
1822 entry.dbm = dbm_cur;
1823 entry.mw = iwinfo_dbm2mw(dbm_cur);
1825 memcpy(&buf[dbm_cnt * sizeof(entry)], &entry, sizeof(entry));
1828 entry.dbm = dbm_max;
1829 entry.mw = iwinfo_dbm2mw(dbm_max);
1831 memcpy(&buf[dbm_cnt * sizeof(entry)], &entry, sizeof(entry));
1834 *len = dbm_cnt * sizeof(entry);
1841 static void nl80211_get_scancrypto(const char *spec,
1842 struct iwinfo_crypto_entry *c)
1844 if (strstr(spec, "WPA") || strstr(spec, "WEP"))
1848 if (strstr(spec, "WPA2-") && strstr(spec, "WPA-"))
1851 else if (strstr(spec, "WPA2"))
1854 else if (strstr(spec, "WPA"))
1857 else if (strstr(spec, "WEP"))
1858 c->auth_algs = IWINFO_AUTH_OPEN | IWINFO_AUTH_SHARED;
1861 if (strstr(spec, "PSK"))
1862 c->auth_suites |= IWINFO_KMGMT_PSK;
1864 if (strstr(spec, "802.1X") || strstr(spec, "EAP"))
1865 c->auth_suites |= IWINFO_KMGMT_8021x;
1867 if (strstr(spec, "WPA-NONE"))
1868 c->auth_suites |= IWINFO_KMGMT_NONE;
1871 if (strstr(spec, "TKIP"))
1872 c->pair_ciphers |= IWINFO_CIPHER_TKIP;
1874 if (strstr(spec, "CCMP"))
1875 c->pair_ciphers |= IWINFO_CIPHER_CCMP;
1877 if (strstr(spec, "WEP-40"))
1878 c->pair_ciphers |= IWINFO_CIPHER_WEP40;
1880 if (strstr(spec, "WEP-104"))
1881 c->pair_ciphers |= IWINFO_CIPHER_WEP104;
1883 c->group_ciphers = c->pair_ciphers;
1892 struct nl80211_scanlist {
1893 struct iwinfo_scanlist_entry *e;
1898 static void nl80211_get_scanlist_ie(struct nlattr **bss,
1899 struct iwinfo_scanlist_entry *e)
1901 int ielen = nla_len(bss[NL80211_BSS_INFORMATION_ELEMENTS]);
1902 unsigned char *ie = nla_data(bss[NL80211_BSS_INFORMATION_ELEMENTS]);
1903 static unsigned char ms_oui[3] = { 0x00, 0x50, 0xf2 };
1906 while (ielen >= 2 && ielen >= ie[1])
1911 len = min(ie[1], IWINFO_ESSID_MAX_SIZE);
1912 memcpy(e->ssid, ie + 2, len);
1917 iwinfo_parse_rsn(&e->crypto, ie + 2, ie[1],
1918 IWINFO_CIPHER_CCMP, IWINFO_KMGMT_8021x);
1921 case 221: /* Vendor */
1922 if (ie[1] >= 4 && !memcmp(ie + 2, ms_oui, 3) && ie[5] == 1)
1923 iwinfo_parse_rsn(&e->crypto, ie + 6, ie[1] - 4,
1924 IWINFO_CIPHER_TKIP, IWINFO_KMGMT_PSK);
1933 static int nl80211_get_scanlist_cb(struct nl_msg *msg, void *arg)
1938 struct nl80211_scanlist *sl = arg;
1939 struct nlattr **tb = nl80211_parse(msg);
1940 struct nlattr *bss[NL80211_BSS_MAX + 1];
1942 static struct nla_policy bss_policy[NL80211_BSS_MAX + 1] = {
1943 [NL80211_BSS_TSF] = { .type = NLA_U64 },
1944 [NL80211_BSS_FREQUENCY] = { .type = NLA_U32 },
1945 [NL80211_BSS_BSSID] = { 0 },
1946 [NL80211_BSS_BEACON_INTERVAL] = { .type = NLA_U16 },
1947 [NL80211_BSS_CAPABILITY] = { .type = NLA_U16 },
1948 [NL80211_BSS_INFORMATION_ELEMENTS] = { 0 },
1949 [NL80211_BSS_SIGNAL_MBM] = { .type = NLA_U32 },
1950 [NL80211_BSS_SIGNAL_UNSPEC] = { .type = NLA_U8 },
1951 [NL80211_BSS_STATUS] = { .type = NLA_U32 },
1952 [NL80211_BSS_SEEN_MS_AGO] = { .type = NLA_U32 },
1953 [NL80211_BSS_BEACON_IES] = { 0 },
1956 if (!tb[NL80211_ATTR_BSS] ||
1957 nla_parse_nested(bss, NL80211_BSS_MAX, tb[NL80211_ATTR_BSS],
1959 !bss[NL80211_BSS_BSSID])
1964 if (bss[NL80211_BSS_CAPABILITY])
1965 caps = nla_get_u16(bss[NL80211_BSS_CAPABILITY]);
1969 memset(sl->e, 0, sizeof(*sl->e));
1970 memcpy(sl->e->mac, nla_data(bss[NL80211_BSS_BSSID]), 6);
1973 sl->e->mode = IWINFO_OPMODE_ADHOC;
1974 else if (caps & (1<<0))
1975 sl->e->mode = IWINFO_OPMODE_MASTER;
1977 sl->e->mode = IWINFO_OPMODE_MESHPOINT;
1980 sl->e->crypto.enabled = 1;
1982 if (bss[NL80211_BSS_FREQUENCY])
1983 sl->e->channel = nl80211_freq2channel(nla_get_u32(
1984 bss[NL80211_BSS_FREQUENCY]));
1986 if (bss[NL80211_BSS_INFORMATION_ELEMENTS])
1987 nl80211_get_scanlist_ie(bss, sl->e);
1989 if (bss[NL80211_BSS_SIGNAL_MBM])
1992 (uint8_t)((int32_t)nla_get_u32(bss[NL80211_BSS_SIGNAL_MBM]) / 100);
1994 rssi = sl->e->signal - 0x100;
1998 else if (rssi > -40)
2001 sl->e->quality = (rssi + 110);
2002 sl->e->quality_max = 70;
2005 if (sl->e->crypto.enabled && !sl->e->crypto.wpa_version)
2007 sl->e->crypto.auth_algs = IWINFO_AUTH_OPEN | IWINFO_AUTH_SHARED;
2008 sl->e->crypto.pair_ciphers = IWINFO_CIPHER_WEP40 | IWINFO_CIPHER_WEP104;
2017 static int nl80211_get_scanlist_nl(const char *ifname, char *buf, int *len)
2019 struct nl80211_msg_conveyor *req;
2020 struct nl80211_scanlist sl = { .e = (struct iwinfo_scanlist_entry *)buf };
2022 req = nl80211_msg(ifname, NL80211_CMD_TRIGGER_SCAN, 0);
2025 nl80211_send(req, NULL, NULL);
2029 nl80211_wait("nl80211", "scan", NL80211_CMD_NEW_SCAN_RESULTS);
2031 req = nl80211_msg(ifname, NL80211_CMD_GET_SCAN, NLM_F_DUMP);
2034 nl80211_send(req, nl80211_get_scanlist_cb, &sl);
2038 *len = sl.len * sizeof(struct iwinfo_scanlist_entry);
2039 return *len ? 0 : -1;
2042 static int wpasupp_ssid_decode(const char *in, char *out, int outlen)
2045 (((x) >= 'a') ? ((x) - 'a' + 10) : \
2046 (((x) >= 'A') ? ((x) - 'A' + 10) : ((x) - '0')))
2052 if (len + 1 >= outlen)
2062 out[len++] = '\n'; in++;
2066 out[len++] = '\r'; in++;
2070 out[len++] = '\t'; in++;
2074 out[len++] = '\033'; in++;
2078 if (isxdigit(*(in+1)) && isxdigit(*(in+2)))
2079 out[len++] = hex(*(in+1)) * 16 + hex(*(in+2));
2101 static int nl80211_get_scanlist_wpactl(const char *ifname, char *buf, int *len)
2103 int sock, qmax, rssi, tries, count = -1, ready = 0;
2104 char *pos, *line, *bssid, *freq, *signal, *flags, *ssid, reply[4096];
2105 struct sockaddr_un local = { 0 };
2106 struct iwinfo_scanlist_entry *e = (struct iwinfo_scanlist_entry *)buf;
2108 sock = nl80211_wpactl_connect(ifname, &local);
2113 send(sock, "ATTACH", 6, 0);
2114 send(sock, "SCAN", 4, 0);
2117 * wait for scan results:
2118 * nl80211_wpactl_recv() will use a timeout of 256ms and we need to scan
2119 * 72 channels at most. We'll also receive two "OK" messages acknowledging
2120 * the "ATTACH" and "SCAN" commands and the driver might need a bit extra
2121 * time to process the results, so try 72 + 2 + 1 times.
2123 for (tries = 0; tries < 75; tries++)
2125 if (nl80211_wpactl_recv(sock, reply, sizeof(reply)) <= 0)
2128 /* got an event notification */
2129 if (reply[0] == '<')
2131 /* scan results are ready */
2132 if (strstr(reply, "CTRL-EVENT-SCAN-RESULTS"))
2134 /* send "SCAN_RESULTS" command */
2135 ready = (send(sock, "SCAN_RESULTS", 12, 0) == 12);
2139 /* is another unrelated event, retry */
2144 /* receive and parse scan results if the wait above didn't time out */
2145 if (ready && nl80211_wpactl_recv(sock, reply, sizeof(reply)) > 0)
2147 nl80211_get_quality_max(ifname, &qmax);
2149 for (line = strtok_r(reply, "\n", &pos);
2151 line = strtok_r(NULL, "\n", &pos))
2153 /* skip header line */
2160 bssid = strtok(line, "\t");
2161 freq = strtok(NULL, "\t");
2162 signal = strtok(NULL, "\t");
2163 flags = strtok(NULL, "\t");
2164 ssid = strtok(NULL, "\n");
2166 if (!bssid || !freq || !signal || !flags || !ssid)
2170 e->mac[0] = strtol(&bssid[0], NULL, 16);
2171 e->mac[1] = strtol(&bssid[3], NULL, 16);
2172 e->mac[2] = strtol(&bssid[6], NULL, 16);
2173 e->mac[3] = strtol(&bssid[9], NULL, 16);
2174 e->mac[4] = strtol(&bssid[12], NULL, 16);
2175 e->mac[5] = strtol(&bssid[15], NULL, 16);
2178 wpasupp_ssid_decode(ssid, e->ssid, sizeof(e->ssid));
2181 if (strstr(flags, "[MESH]"))
2182 e->mode = IWINFO_OPMODE_MESHPOINT;
2183 else if (strstr(flags, "[IBSS]"))
2184 e->mode = IWINFO_OPMODE_ADHOC;
2186 e->mode = IWINFO_OPMODE_MASTER;
2189 e->channel = nl80211_freq2channel(atoi(freq));
2192 rssi = atoi(signal);
2198 /* The cfg80211 wext compat layer assumes a signal range
2199 * of -110 dBm to -40 dBm, the quality value is derived
2200 * by adding 110 to the signal level */
2203 else if (rssi > -40)
2206 e->quality = (rssi + 110);
2214 e->quality_max = qmax;
2217 nl80211_get_scancrypto(flags, &e->crypto);
2223 *len = count * sizeof(struct iwinfo_scanlist_entry);
2227 unlink(local.sun_path);
2229 return (count >= 0) ? 0 : -1;
2232 static int nl80211_get_scanlist(const char *ifname, char *buf, int *len)
2239 /* Got a radioX pseudo interface, find some interface on it or create one */
2240 if (!strncmp(ifname, "radio", 5))
2242 /* Reuse existing interface */
2243 if ((res = nl80211_phy2ifname(ifname)) != NULL)
2245 return nl80211_get_scanlist(res, buf, len);
2248 /* Need to spawn a temporary iface for scanning */
2249 else if ((res = nl80211_ifadd(ifname)) != NULL)
2251 rv = nl80211_get_scanlist(res, buf, len);
2257 /* WPA supplicant */
2258 if (!nl80211_get_scanlist_wpactl(ifname, buf, len))
2263 /* station / ad-hoc / monitor scan */
2264 else if (!nl80211_get_mode(ifname, &mode) &&
2265 (mode == IWINFO_OPMODE_ADHOC ||
2266 mode == IWINFO_OPMODE_MASTER ||
2267 mode == IWINFO_OPMODE_CLIENT ||
2268 mode == IWINFO_OPMODE_MONITOR) &&
2269 iwinfo_ifup(ifname))
2271 return nl80211_get_scanlist_nl(ifname, buf, len);
2277 /* Got a temp interface, don't create yet another one */
2278 if (!strncmp(ifname, "tmp.", 4))
2280 if (!iwinfo_ifup(ifname))
2283 rv = nl80211_get_scanlist_nl(ifname, buf, len);
2284 iwinfo_ifdown(ifname);
2288 /* Spawn a new scan interface */
2291 if (!(res = nl80211_ifadd(ifname)))
2296 /* if we can take the new interface up, the driver supports an
2297 * additional interface and there's no need to tear down the ap */
2298 if (iwinfo_ifup(res))
2300 rv = nl80211_get_scanlist_nl(res, buf, len);
2304 /* driver cannot create secondary interface, take down ap
2306 else if (iwinfo_ifdown(ifname) && iwinfo_ifup(res))
2308 rv = nl80211_get_scanlist_nl(res, buf, len);
2310 iwinfo_ifup(ifname);
2311 nl80211_hostapd_hup(ifname);
2322 static int nl80211_get_freqlist_cb(struct nl_msg *msg, void *arg)
2324 int bands_remain, freqs_remain;
2326 struct nl80211_array_buf *arr = arg;
2327 struct iwinfo_freqlist_entry *e = arr->buf;
2329 struct nlattr **attr = nl80211_parse(msg);
2330 struct nlattr *bands[NL80211_BAND_ATTR_MAX + 1];
2331 struct nlattr *freqs[NL80211_FREQUENCY_ATTR_MAX + 1];
2332 struct nlattr *band, *freq;
2334 nla_for_each_nested(band, attr[NL80211_ATTR_WIPHY_BANDS], bands_remain)
2336 nla_parse(bands, NL80211_BAND_ATTR_MAX,
2337 nla_data(band), nla_len(band), NULL);
2339 nla_for_each_nested(freq, bands[NL80211_BAND_ATTR_FREQS], freqs_remain)
2341 nla_parse(freqs, NL80211_FREQUENCY_ATTR_MAX,
2342 nla_data(freq), nla_len(freq), NULL);
2344 if (!freqs[NL80211_FREQUENCY_ATTR_FREQ] ||
2345 freqs[NL80211_FREQUENCY_ATTR_DISABLED])
2348 e->mhz = nla_get_u32(freqs[NL80211_FREQUENCY_ATTR_FREQ]);
2349 e->channel = nl80211_freq2channel(e->mhz);
2352 freqs[NL80211_FREQUENCY_ATTR_NO_IR] &&
2353 !freqs[NL80211_FREQUENCY_ATTR_RADAR]
2364 static int nl80211_get_freqlist(const char *ifname, char *buf, int *len)
2366 struct nl80211_msg_conveyor *req;
2367 struct nl80211_array_buf arr = { .buf = buf, .count = 0 };
2369 req = nl80211_msg(ifname, NL80211_CMD_GET_WIPHY, 0);
2372 nl80211_send(req, nl80211_get_freqlist_cb, &arr);
2378 *len = arr.count * sizeof(struct iwinfo_freqlist_entry);
2385 static int nl80211_get_country_cb(struct nl_msg *msg, void *arg)
2388 struct nlattr **attr = nl80211_parse(msg);
2390 if (attr[NL80211_ATTR_REG_ALPHA2])
2391 memcpy(buf, nla_data(attr[NL80211_ATTR_REG_ALPHA2]), 2);
2398 static int nl80211_get_country(const char *ifname, char *buf)
2401 struct nl80211_msg_conveyor *req;
2403 req = nl80211_msg(ifname, NL80211_CMD_GET_REG, 0);
2406 nl80211_send(req, nl80211_get_country_cb, buf);
2416 static int nl80211_get_countrylist(const char *ifname, char *buf, int *len)
2419 struct iwinfo_country_entry *e = (struct iwinfo_country_entry *)buf;
2420 const struct iwinfo_iso3166_label *l;
2422 for (l = IWINFO_ISO3166_NAMES, count = 0; l->iso3166; l++, e++, count++)
2424 e->iso3166 = l->iso3166;
2425 e->ccode[0] = (l->iso3166 / 256);
2426 e->ccode[1] = (l->iso3166 % 256);
2429 *len = (count * sizeof(struct iwinfo_country_entry));
2434 struct nl80211_modes
2441 static int nl80211_get_modelist_cb(struct nl_msg *msg, void *arg)
2443 struct nl80211_modes *m = arg;
2444 int bands_remain, freqs_remain;
2446 uint32_t vht_caps = 0;
2447 struct nlattr **attr = nl80211_parse(msg);
2448 struct nlattr *bands[NL80211_BAND_ATTR_MAX + 1];
2449 struct nlattr *freqs[NL80211_FREQUENCY_ATTR_MAX + 1];
2450 struct nlattr *band, *freq;
2452 if (attr[NL80211_ATTR_WIPHY_BANDS])
2454 nla_for_each_nested(band, attr[NL80211_ATTR_WIPHY_BANDS], bands_remain)
2456 nla_parse(bands, NL80211_BAND_ATTR_MAX,
2457 nla_data(band), nla_len(band), NULL);
2459 if (bands[NL80211_BAND_ATTR_HT_CAPA])
2460 caps = nla_get_u16(bands[NL80211_BAND_ATTR_HT_CAPA]);
2462 /* Treat any nonzero capability as 11n */
2465 m->hw |= IWINFO_80211_N;
2466 m->ht |= IWINFO_HTMODE_HT20;
2468 if (caps & (1 << 1))
2469 m->ht |= IWINFO_HTMODE_HT40;
2472 nla_for_each_nested(freq, bands[NL80211_BAND_ATTR_FREQS],
2475 nla_parse(freqs, NL80211_FREQUENCY_ATTR_MAX,
2476 nla_data(freq), nla_len(freq), NULL);
2478 if (!freqs[NL80211_FREQUENCY_ATTR_FREQ])
2481 if (nla_get_u32(freqs[NL80211_FREQUENCY_ATTR_FREQ]) < 2485)
2483 m->hw |= IWINFO_80211_B;
2484 m->hw |= IWINFO_80211_G;
2486 else if (bands[NL80211_BAND_ATTR_VHT_CAPA])
2488 vht_caps = nla_get_u32(bands[NL80211_BAND_ATTR_VHT_CAPA]);
2490 /* Treat any nonzero capability as 11ac */
2493 m->hw |= IWINFO_80211_AC;
2494 m->ht |= IWINFO_HTMODE_VHT20 | IWINFO_HTMODE_VHT40 | IWINFO_HTMODE_VHT80;
2496 switch ((vht_caps >> 2) & 3)
2499 m->ht |= IWINFO_HTMODE_VHT80_80;
2503 m->ht |= IWINFO_HTMODE_VHT160;
2507 else if (!(m->hw & IWINFO_80211_AC))
2509 m->hw |= IWINFO_80211_A;
2520 static int nl80211_get_hwmodelist(const char *ifname, int *buf)
2522 struct nl80211_msg_conveyor *req;
2523 struct nl80211_modes m = { 0 };
2525 req = nl80211_msg(ifname, NL80211_CMD_GET_WIPHY, 0);
2528 nl80211_send(req, nl80211_get_modelist_cb, &m);
2541 static int nl80211_get_htmodelist(const char *ifname, int *buf)
2543 struct nl80211_msg_conveyor *req;
2544 struct nl80211_modes m = { 0 };
2546 req = nl80211_msg(ifname, NL80211_CMD_GET_WIPHY, 0);
2549 nl80211_send(req, nl80211_get_modelist_cb, &m);
2563 static int nl80211_get_ifcomb_cb(struct nl_msg *msg, void *arg)
2565 struct nlattr **attr = nl80211_parse(msg);
2566 struct nlattr *comb;
2568 int comb_rem, limit_rem, mode_rem;
2571 if (!attr[NL80211_ATTR_INTERFACE_COMBINATIONS])
2574 nla_for_each_nested(comb, attr[NL80211_ATTR_INTERFACE_COMBINATIONS], comb_rem)
2576 static struct nla_policy iface_combination_policy[NUM_NL80211_IFACE_COMB] = {
2577 [NL80211_IFACE_COMB_LIMITS] = { .type = NLA_NESTED },
2578 [NL80211_IFACE_COMB_MAXNUM] = { .type = NLA_U32 },
2580 struct nlattr *tb_comb[NUM_NL80211_IFACE_COMB+1];
2581 static struct nla_policy iface_limit_policy[NUM_NL80211_IFACE_LIMIT] = {
2582 [NL80211_IFACE_LIMIT_TYPES] = { .type = NLA_NESTED },
2583 [NL80211_IFACE_LIMIT_MAX] = { .type = NLA_U32 },
2585 struct nlattr *tb_limit[NUM_NL80211_IFACE_LIMIT+1];
2586 struct nlattr *limit;
2588 nla_parse_nested(tb_comb, NUM_NL80211_IFACE_COMB, comb, iface_combination_policy);
2590 if (!tb_comb[NL80211_IFACE_COMB_LIMITS])
2593 nla_for_each_nested(limit, tb_comb[NL80211_IFACE_COMB_LIMITS], limit_rem)
2595 struct nlattr *mode;
2597 nla_parse_nested(tb_limit, NUM_NL80211_IFACE_LIMIT, limit, iface_limit_policy);
2599 if (!tb_limit[NL80211_IFACE_LIMIT_TYPES] ||
2600 !tb_limit[NL80211_IFACE_LIMIT_MAX])
2603 if (nla_get_u32(tb_limit[NL80211_IFACE_LIMIT_MAX]) < 2)
2606 nla_for_each_nested(mode, tb_limit[NL80211_IFACE_LIMIT_TYPES], mode_rem) {
2607 if (nla_type(mode) == NL80211_IFTYPE_AP)
2616 static int nl80211_get_mbssid_support(const char *ifname, int *buf)
2618 struct nl80211_msg_conveyor *req;
2620 req = nl80211_msg(ifname, NL80211_CMD_GET_WIPHY, 0);
2624 nl80211_send(req, nl80211_get_ifcomb_cb, buf);
2629 static int nl80211_get_hardware_id(const char *ifname, char *buf)
2634 /* Got a radioX pseudo interface, find some interface on it or create one */
2635 if (!strncmp(ifname, "radio", 5))
2637 /* Reuse existing interface */
2638 if ((res = nl80211_phy2ifname(ifname)) != NULL)
2640 rv = wext_ops.hardware_id(res, buf);
2643 /* Need to spawn a temporary iface for finding IDs */
2644 else if ((res = nl80211_ifadd(ifname)) != NULL)
2646 rv = wext_ops.hardware_id(res, buf);
2652 rv = wext_ops.hardware_id(ifname, buf);
2655 /* Failed to obtain hardware IDs, search board config */
2658 rv = iwinfo_hardware_id_from_mtd((struct iwinfo_hardware_id *)buf);
2664 static const struct iwinfo_hardware_entry *
2665 nl80211_get_hardware_entry(const char *ifname)
2667 struct iwinfo_hardware_id id;
2669 if (nl80211_get_hardware_id(ifname, (char *)&id))
2672 return iwinfo_hardware(&id);
2675 static int nl80211_get_hardware_name(const char *ifname, char *buf)
2677 const struct iwinfo_hardware_entry *hw;
2679 if (!(hw = nl80211_get_hardware_entry(ifname)))
2680 sprintf(buf, "Generic MAC80211");
2682 sprintf(buf, "%s %s", hw->vendor_name, hw->device_name);
2687 static int nl80211_get_txpower_offset(const char *ifname, int *buf)
2689 const struct iwinfo_hardware_entry *hw;
2691 if (!(hw = nl80211_get_hardware_entry(ifname)))
2694 *buf = hw->txpower_offset;
2698 static int nl80211_get_frequency_offset(const char *ifname, int *buf)
2700 const struct iwinfo_hardware_entry *hw;
2702 if (!(hw = nl80211_get_hardware_entry(ifname)))
2705 *buf = hw->frequency_offset;
2709 static int nl80211_lookup_phyname(const char *section, char *buf)
2713 if ((idx = nl80211_phy_idx_from_uci(section)) < 0)
2716 sprintf(buf, "phy%d", idx);
2720 const struct iwinfo_ops nl80211_ops = {
2722 .probe = nl80211_probe,
2723 .channel = nl80211_get_channel,
2724 .frequency = nl80211_get_frequency,
2725 .frequency_offset = nl80211_get_frequency_offset,
2726 .txpower = nl80211_get_txpower,
2727 .txpower_offset = nl80211_get_txpower_offset,
2728 .bitrate = nl80211_get_bitrate,
2729 .signal = nl80211_get_signal,
2730 .noise = nl80211_get_noise,
2731 .quality = nl80211_get_quality,
2732 .quality_max = nl80211_get_quality_max,
2733 .mbssid_support = nl80211_get_mbssid_support,
2734 .hwmodelist = nl80211_get_hwmodelist,
2735 .htmodelist = nl80211_get_htmodelist,
2736 .mode = nl80211_get_mode,
2737 .ssid = nl80211_get_ssid,
2738 .bssid = nl80211_get_bssid,
2739 .country = nl80211_get_country,
2740 .hardware_id = nl80211_get_hardware_id,
2741 .hardware_name = nl80211_get_hardware_name,
2742 .encryption = nl80211_get_encryption,
2743 .phyname = nl80211_get_phyname,
2744 .assoclist = nl80211_get_assoclist,
2745 .txpwrlist = nl80211_get_txpwrlist,
2746 .scanlist = nl80211_get_scanlist,
2747 .freqlist = nl80211_get_freqlist,
2748 .countrylist = nl80211_get_countrylist,
2749 .lookup_phy = nl80211_lookup_phyname,
2750 .close = nl80211_close