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 #define BIT(x) (1ULL<<(x))
36 static struct nl80211_state *nls = NULL;
38 static void nl80211_close(void)
43 genl_family_put(nls->nlctrl);
46 genl_family_put(nls->nl80211);
49 nl_socket_free(nls->nl_sock);
52 nl_cache_free(nls->nl_cache);
59 static int nl80211_init(void)
65 nls = malloc(sizeof(struct nl80211_state));
71 memset(nls, 0, sizeof(*nls));
73 nls->nl_sock = nl_socket_alloc();
79 if (genl_connect(nls->nl_sock)) {
84 fd = nl_socket_get_fd(nls->nl_sock);
85 if (fcntl(fd, F_SETFD, fcntl(fd, F_GETFD) | FD_CLOEXEC) < 0) {
90 if (genl_ctrl_alloc_cache(nls->nl_sock, &nls->nl_cache)) {
95 nls->nl80211 = genl_ctrl_search_by_name(nls->nl_cache, "nl80211");
101 nls->nlctrl = genl_ctrl_search_by_name(nls->nl_cache, "nlctrl");
116 static int nl80211_readint(const char *path)
122 if ((fd = open(path, O_RDONLY)) > -1)
124 if (read(fd, buffer, sizeof(buffer)) > 0)
133 static int nl80211_readstr(const char *path, char *buffer, int length)
138 if ((fd = open(path, O_RDONLY)) > -1)
140 if ((rv = read(fd, buffer, length - 1)) > 0)
142 if (buffer[rv - 1] == '\n')
155 static int nl80211_msg_error(struct sockaddr_nl *nla,
156 struct nlmsgerr *err, void *arg)
163 static int nl80211_msg_finish(struct nl_msg *msg, void *arg)
170 static int nl80211_msg_ack(struct nl_msg *msg, void *arg)
177 static int nl80211_msg_response(struct nl_msg *msg, void *arg)
182 static void nl80211_free(struct nl80211_msg_conveyor *cv)
197 static struct nl80211_msg_conveyor * nl80211_new(struct genl_family *family,
200 static struct nl80211_msg_conveyor cv;
202 struct nl_msg *req = NULL;
203 struct nl_cb *cb = NULL;
209 cb = nl_cb_alloc(NL_CB_DEFAULT);
213 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))
248 snprintf(buf, sizeof(buf), "/sys/devices/platform/%s/ieee80211/*/index", opt); /**/
250 if (glob(buf, 0, NULL, &gl))
254 idx = nl80211_readint(gl.gl_pathv[0]);
261 static int nl80211_phy_idx_from_uci_macaddr(struct uci_section *s)
268 opt = uci_lookup_option_string(uci_ctx, s, "macaddr");
272 snprintf(buf, sizeof(buf), "/sys/class/ieee80211/*"); /**/
273 if (glob(buf, 0, NULL, &gl))
276 for (i = 0; i < gl.gl_pathc; i++)
278 snprintf(buf, sizeof(buf), "%s/macaddress", gl.gl_pathv[i]);
279 if (nl80211_readstr(buf, buf, sizeof(buf)) <= 0)
282 if (fnmatch(opt, buf, FNM_CASEFOLD))
285 snprintf(buf, sizeof(buf), "%s/index", gl.gl_pathv[i]);
286 if ((idx = nl80211_readint(buf)) > -1)
295 static int nl80211_phy_idx_from_uci_phy(struct uci_section *s)
300 opt = uci_lookup_option_string(uci_ctx, s, "phy");
304 snprintf(buf, sizeof(buf), "/sys/class/ieee80211/%s/index", opt);
305 return nl80211_readint(buf);
308 static int nl80211_phy_idx_from_uci(const char *name)
310 struct uci_section *s;
313 s = iwinfo_uci_get_radio(name, "mac80211");
317 idx = nl80211_phy_idx_from_uci_path(s);
320 idx = nl80211_phy_idx_from_uci_macaddr(s);
323 idx = nl80211_phy_idx_from_uci_phy(s);
330 static struct nl80211_msg_conveyor * nl80211_msg(const char *ifname,
333 int ifidx = -1, phyidx = -1;
334 struct nl80211_msg_conveyor *cv;
339 if (nl80211_init() < 0)
342 if (!strncmp(ifname, "phy", 3))
343 phyidx = atoi(&ifname[3]);
344 else if (!strncmp(ifname, "radio", 5))
345 phyidx = nl80211_phy_idx_from_uci(ifname);
346 else if (!strncmp(ifname, "mon.", 4))
347 ifidx = if_nametoindex(&ifname[4]);
349 ifidx = if_nametoindex(ifname);
351 /* Valid ifidx must be greater than 0 */
352 if ((ifidx <= 0) && (phyidx < 0))
355 cv = nl80211_new(nls->nl80211, cmd, flags);
360 NLA_PUT_U32(cv->msg, NL80211_ATTR_IFINDEX, ifidx);
363 NLA_PUT_U32(cv->msg, NL80211_ATTR_WIPHY, phyidx);
372 static int nl80211_send(struct nl80211_msg_conveyor *cv,
373 int (*cb_func)(struct nl_msg *, void *),
376 static struct nl80211_msg_conveyor rcv;
380 nl_cb_set(cv->cb, NL_CB_VALID, NL_CB_CUSTOM, cb_func, cb_arg);
382 nl_cb_set(cv->cb, NL_CB_VALID, NL_CB_CUSTOM, nl80211_msg_response, &rcv);
384 err = nl_send_auto_complete(nls->nl_sock, cv->msg);
391 nl_cb_err(cv->cb, NL_CB_CUSTOM, nl80211_msg_error, &err);
392 nl_cb_set(cv->cb, NL_CB_FINISH, NL_CB_CUSTOM, nl80211_msg_finish, &err);
393 nl_cb_set(cv->cb, NL_CB_ACK, NL_CB_CUSTOM, nl80211_msg_ack, &err);
396 nl_recvmsgs(nls->nl_sock, cv->cb);
403 static int nl80211_request(const char *ifname, int cmd, int flags,
404 int (*cb_func)(struct nl_msg *, void *),
407 struct nl80211_msg_conveyor *cv;
409 cv = nl80211_msg(ifname, cmd, flags);
414 return nl80211_send(cv, cb_func, cb_arg);
417 static struct nlattr ** nl80211_parse(struct nl_msg *msg)
419 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
420 static struct nlattr *attr[NL80211_ATTR_MAX + 1];
422 nla_parse(attr, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
423 genlmsg_attrlen(gnlh, 0), NULL);
429 static int nl80211_subscribe_cb(struct nl_msg *msg, void *arg)
431 struct nl80211_group_conveyor *cv = arg;
433 struct nlattr **attr = nl80211_parse(msg);
434 struct nlattr *mgrpinfo[CTRL_ATTR_MCAST_GRP_MAX + 1];
438 if (!attr[CTRL_ATTR_MCAST_GROUPS])
441 nla_for_each_nested(mgrp, attr[CTRL_ATTR_MCAST_GROUPS], mgrpidx)
443 nla_parse(mgrpinfo, CTRL_ATTR_MCAST_GRP_MAX,
444 nla_data(mgrp), nla_len(mgrp), NULL);
446 if (mgrpinfo[CTRL_ATTR_MCAST_GRP_ID] &&
447 mgrpinfo[CTRL_ATTR_MCAST_GRP_NAME] &&
448 !strncmp(nla_data(mgrpinfo[CTRL_ATTR_MCAST_GRP_NAME]),
449 cv->name, nla_len(mgrpinfo[CTRL_ATTR_MCAST_GRP_NAME])))
451 cv->id = nla_get_u32(mgrpinfo[CTRL_ATTR_MCAST_GRP_ID]);
459 static int nl80211_subscribe(const char *family, const char *group)
461 struct nl80211_group_conveyor cv = { .name = group, .id = -ENOENT };
462 struct nl80211_msg_conveyor *req;
465 req = nl80211_ctl(CTRL_CMD_GETFAMILY, 0);
468 NLA_PUT_STRING(req->msg, CTRL_ATTR_FAMILY_NAME, family);
469 err = nl80211_send(req, nl80211_subscribe_cb, &cv);
474 return nl_socket_add_membership(nls->nl_sock, cv.id);
484 static int nl80211_wait_cb(struct nl_msg *msg, void *arg)
486 struct nl80211_event_conveyor *cv = arg;
487 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
489 if (gnlh->cmd == cv->wait)
490 cv->recv = gnlh->cmd;
495 static int nl80211_wait_seq_check(struct nl_msg *msg, void *arg)
500 static int nl80211_wait(const char *family, const char *group, int cmd)
502 struct nl80211_event_conveyor cv = { .wait = cmd };
506 if (nl80211_subscribe(family, group))
509 cb = nl_cb_alloc(NL_CB_DEFAULT);
514 nl_cb_err(cb, NL_CB_CUSTOM, nl80211_msg_error, &err);
515 nl_cb_set(cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, nl80211_wait_seq_check, NULL);
516 nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM, nl80211_wait_cb, &cv );
518 while (!cv.recv && !err)
519 nl_recvmsgs(nls->nl_sock, cb);
527 static int nl80211_freq2channel(int freq)
531 else if (freq < 2484)
532 return (freq - 2407) / 5;
533 else if (freq >= 4910 && freq <= 4980)
534 return (freq - 4000) / 5;
536 return (freq - 5000) / 5;
539 static int nl80211_channel2freq(int channel, const char *band)
541 if (!band || band[0] != 'a')
545 else if (channel < 14)
546 return (channel * 5) + 2407;
550 if (channel >= 182 && channel <= 196)
551 return (channel * 5) + 4000;
553 return (channel * 5) + 5000;
559 static int nl80211_ifname2phy_cb(struct nl_msg *msg, void *arg)
562 struct nlattr **attr = nl80211_parse(msg);
564 if (attr[NL80211_ATTR_WIPHY_NAME])
565 memcpy(buf, nla_data(attr[NL80211_ATTR_WIPHY_NAME]),
566 nla_len(attr[NL80211_ATTR_WIPHY_NAME]));
573 static char * nl80211_ifname2phy(const char *ifname)
575 static char phy[32] = { 0 };
577 memset(phy, 0, sizeof(phy));
579 nl80211_request(ifname, NL80211_CMD_GET_WIPHY, 0,
580 nl80211_ifname2phy_cb, phy);
582 return phy[0] ? phy : NULL;
585 static char * nl80211_phy2ifname(const char *ifname)
587 int ifidx = -1, cifidx = -1, phyidx = -1;
589 static char nif[IFNAMSIZ] = { 0 };
594 /* Only accept phy name of the form phy%d or radio%d */
597 else if (!strncmp(ifname, "phy", 3))
598 phyidx = atoi(&ifname[3]);
599 else if (!strncmp(ifname, "radio", 5))
600 phyidx = nl80211_phy_idx_from_uci(ifname);
604 memset(nif, 0, sizeof(nif));
608 if ((d = opendir("/sys/class/net")) != NULL)
610 while ((e = readdir(d)) != NULL)
612 snprintf(buffer, sizeof(buffer),
613 "/sys/class/net/%s/phy80211/index", e->d_name);
615 if (nl80211_readint(buffer) == phyidx)
617 snprintf(buffer, sizeof(buffer),
618 "/sys/class/net/%s/ifindex", e->d_name);
620 if ((cifidx = nl80211_readint(buffer)) >= 0 &&
621 ((ifidx < 0) || (cifidx < ifidx)))
624 strncpy(nif, e->d_name, sizeof(nif) - 1);
633 return nif[0] ? nif : NULL;
636 static int nl80211_get_mode_cb(struct nl_msg *msg, void *arg)
639 struct nlattr **tb = nl80211_parse(msg);
640 const int ifmodes[NL80211_IFTYPE_MAX + 1] = {
641 IWINFO_OPMODE_UNKNOWN, /* unspecified */
642 IWINFO_OPMODE_ADHOC, /* IBSS */
643 IWINFO_OPMODE_CLIENT, /* managed */
644 IWINFO_OPMODE_MASTER, /* AP */
645 IWINFO_OPMODE_AP_VLAN, /* AP/VLAN */
646 IWINFO_OPMODE_WDS, /* WDS */
647 IWINFO_OPMODE_MONITOR, /* monitor */
648 IWINFO_OPMODE_MESHPOINT, /* mesh point */
649 IWINFO_OPMODE_P2P_CLIENT, /* P2P-client */
650 IWINFO_OPMODE_P2P_GO, /* P2P-GO */
653 if (tb[NL80211_ATTR_IFTYPE])
654 *mode = ifmodes[nla_get_u32(tb[NL80211_ATTR_IFTYPE])];
660 static int nl80211_get_mode(const char *ifname, int *buf)
664 *buf = IWINFO_OPMODE_UNKNOWN;
666 res = nl80211_phy2ifname(ifname);
668 nl80211_request(res ? res : ifname, NL80211_CMD_GET_INTERFACE, 0,
669 nl80211_get_mode_cb, buf);
671 return (*buf == IWINFO_OPMODE_UNKNOWN) ? -1 : 0;
674 static int __nl80211_hostapd_query(const char *ifname, ...)
677 char *phy, *search, *dest, *key, *val, buf[128];
678 int len, mode, found = 0, match = 1;
681 if (nl80211_get_mode(ifname, &mode))
684 if (mode != IWINFO_OPMODE_MASTER && mode != IWINFO_OPMODE_AP_VLAN)
687 phy = nl80211_ifname2phy(ifname);
692 snprintf(buf, sizeof(buf), "/var/run/hostapd-%s.conf", phy);
693 fp = fopen(buf, "r");
698 va_start(ap, ifname);
700 /* clear all destination buffers */
703 while ((search = va_arg(ap_cur, char *)) != NULL)
705 dest = va_arg(ap_cur, char *);
706 len = va_arg(ap_cur, int);
708 memset(dest, 0, len);
713 /* iterate applicable lines and copy found values into dest buffers */
714 while (fgets(buf, sizeof(buf), fp))
716 key = strtok(buf, " =\t\n");
717 val = strtok(NULL, "\n");
719 if (!key || !val || !*key || *key == '#')
722 if (!strcmp(key, "interface") || !strcmp(key, "bss"))
723 match = !strcmp(ifname, val);
730 while ((search = va_arg(ap_cur, char *)) != NULL)
732 dest = va_arg(ap_cur, char *);
733 len = va_arg(ap_cur, int);
735 if (!strcmp(search, key))
737 strncpy(dest, val, len - 1);
753 #define nl80211_hostapd_query(ifname, ...) \
754 __nl80211_hostapd_query(ifname, ##__VA_ARGS__, NULL)
757 static inline int nl80211_wpactl_recv(int sock, char *buf, int blen)
760 struct timeval tv = { 0, 256000 };
765 memset(buf, 0, blen);
767 if (select(sock + 1, &rfds, NULL, NULL, &tv) < 0)
770 if (!FD_ISSET(sock, &rfds))
773 return recv(sock, buf, blen - 1, 0);
776 static int nl80211_wpactl_connect(const char *ifname, struct sockaddr_un *local)
778 struct sockaddr_un remote = { 0 };
779 size_t remote_length, local_length;
781 int sock = socket(PF_UNIX, SOCK_DGRAM, 0);
785 remote.sun_family = AF_UNIX;
786 remote_length = sizeof(remote.sun_family) +
787 sprintf(remote.sun_path, "/var/run/wpa_supplicant-%s/%s",
790 if (fcntl(sock, F_SETFD, fcntl(sock, F_GETFD) | FD_CLOEXEC) < 0)
796 if (connect(sock, (struct sockaddr *)&remote, remote_length))
798 remote_length = sizeof(remote.sun_family) +
799 sprintf(remote.sun_path, "/var/run/wpa_supplicant/%s", ifname);
801 if (connect(sock, (struct sockaddr *)&remote, remote_length))
808 local->sun_family = AF_UNIX;
809 local_length = sizeof(local->sun_family) +
810 sprintf(local->sun_path, "/var/run/iwinfo-%s-%d", ifname, getpid());
812 if (bind(sock, (struct sockaddr *)local, local_length) < 0)
821 static int __nl80211_wpactl_query(const char *ifname, ...)
824 struct sockaddr_un local = { 0 };
825 int len, mode, found = 0, sock = -1;
826 char *search, *dest, *key, *val, *line, *pos, buf[512];
828 if (nl80211_get_mode(ifname, &mode))
831 if (mode != IWINFO_OPMODE_CLIENT && mode != IWINFO_OPMODE_ADHOC)
834 sock = nl80211_wpactl_connect(ifname, &local);
839 va_start(ap, ifname);
841 /* clear all destination buffers */
844 while ((search = va_arg(ap_cur, char *)) != NULL)
846 dest = va_arg(ap_cur, char *);
847 len = va_arg(ap_cur, int);
849 memset(dest, 0, len);
854 send(sock, "STATUS", 6, 0);
858 if (nl80211_wpactl_recv(sock, buf, sizeof(buf)) <= 0)
864 for (line = strtok_r(buf, "\n", &pos);
866 line = strtok_r(NULL, "\n", &pos))
868 key = strtok(line, "=");
869 val = strtok(NULL, "\n");
876 while ((search = va_arg(ap_cur, char *)) != NULL)
878 dest = va_arg(ap_cur, char *);
879 len = va_arg(ap_cur, int);
881 if (!strcmp(search, key))
883 strncpy(dest, val, len - 1);
898 unlink(local.sun_path);
903 #define nl80211_wpactl_query(ifname, ...) \
904 __nl80211_wpactl_query(ifname, ##__VA_ARGS__, NULL)
907 static char * nl80211_ifadd(const char *ifname)
910 static char nif[IFNAMSIZ] = { 0 };
911 struct nl80211_msg_conveyor *req;
914 req = nl80211_msg(ifname, NL80211_CMD_NEW_INTERFACE, 0);
917 snprintf(nif, sizeof(nif), "tmp.%s", ifname);
919 NLA_PUT_STRING(req->msg, NL80211_ATTR_IFNAME, nif);
920 NLA_PUT_U32(req->msg, NL80211_ATTR_IFTYPE, NL80211_IFTYPE_STATION);
922 nl80211_send(req, NULL, NULL);
924 snprintf(path, sizeof(path) - 1,
925 "/proc/sys/net/ipv6/conf/%s/disable_ipv6", nif);
927 if ((sysfs = fopen(path, "w")) != NULL)
929 fwrite("0\n", 1, 2, sysfs);
942 static void nl80211_ifdel(const char *ifname)
944 struct nl80211_msg_conveyor *req;
947 req = nl80211_msg(ifname, NL80211_CMD_DEL_INTERFACE, 0);
950 NLA_PUT_STRING(req->msg, NL80211_ATTR_IFNAME, ifname);
952 nl80211_send(req, NULL, NULL);
960 static void nl80211_hostapd_hup(const char *ifname)
964 char *phy = nl80211_ifname2phy(ifname);
968 snprintf(buf, sizeof(buf), "/var/run/wifi-%s.pid", phy);
969 if ((fd = open(buf, O_RDONLY)) >= 0)
971 if (read(fd, buf, sizeof(buf)) > 0)
983 static int nl80211_probe(const char *ifname)
985 return !!nl80211_ifname2phy(ifname);
988 struct nl80211_ssid_bssid {
990 unsigned char bssid[7];
993 static int nl80211_get_ssid_bssid_cb(struct nl_msg *msg, void *arg)
997 struct nl80211_ssid_bssid *sb = arg;
998 struct nlattr **tb = nl80211_parse(msg);
999 struct nlattr *bss[NL80211_BSS_MAX + 1];
1001 static struct nla_policy bss_policy[NL80211_BSS_MAX + 1] = {
1002 [NL80211_BSS_INFORMATION_ELEMENTS] = { 0 },
1003 [NL80211_BSS_STATUS] = { .type = NLA_U32 },
1006 if (!tb[NL80211_ATTR_BSS] ||
1007 nla_parse_nested(bss, NL80211_BSS_MAX, tb[NL80211_ATTR_BSS],
1009 !bss[NL80211_BSS_BSSID] ||
1010 !bss[NL80211_BSS_STATUS] ||
1011 !bss[NL80211_BSS_INFORMATION_ELEMENTS])
1016 switch (nla_get_u32(bss[NL80211_BSS_STATUS]))
1018 case NL80211_BSS_STATUS_ASSOCIATED:
1019 case NL80211_BSS_STATUS_AUTHENTICATED:
1020 case NL80211_BSS_STATUS_IBSS_JOINED:
1024 ie = nla_data(bss[NL80211_BSS_INFORMATION_ELEMENTS]);
1025 ielen = nla_len(bss[NL80211_BSS_INFORMATION_ELEMENTS]);
1027 while (ielen >= 2 && ielen >= ie[1])
1031 memcpy(sb->ssid, ie + 2, min(ie[1], IWINFO_ESSID_MAX_SIZE));
1042 memcpy(sb->bssid + 1, nla_data(bss[NL80211_BSS_BSSID]), 6);
1051 static int nl80211_get_ssid(const char *ifname, char *buf)
1054 struct nl80211_ssid_bssid sb = { .ssid = (unsigned char *)buf };
1056 /* try to find ssid from scan dump results */
1057 res = nl80211_phy2ifname(ifname);
1060 nl80211_request(res ? res : ifname, NL80211_CMD_GET_SCAN, NLM_F_DUMP,
1061 nl80211_get_ssid_bssid_cb, &sb);
1063 /* failed, try to find from hostapd info */
1064 if (sb.ssid[0] == 0)
1065 nl80211_hostapd_query(ifname, "ssid", sb.ssid,
1066 IWINFO_ESSID_MAX_SIZE + 1);
1068 return (sb.ssid[0] == 0) ? -1 : 0;
1071 static int nl80211_get_bssid(const char *ifname, char *buf)
1073 char *res, bssid[sizeof("FF:FF:FF:FF:FF:FF\0")];
1074 struct nl80211_ssid_bssid sb = { };
1076 /* try to find bssid from scan dump results */
1077 res = nl80211_phy2ifname(ifname);
1079 nl80211_request(res ? res : ifname, NL80211_CMD_GET_SCAN, NLM_F_DUMP,
1080 nl80211_get_ssid_bssid_cb, &sb);
1082 /* failed, try to find mac from hostapd info */
1083 if ((sb.bssid[0] == 0) &&
1084 nl80211_hostapd_query(ifname, "bssid", bssid, sizeof(bssid)))
1087 sb.bssid[1] = strtol(&bssid[0], NULL, 16);
1088 sb.bssid[2] = strtol(&bssid[3], NULL, 16);
1089 sb.bssid[3] = strtol(&bssid[6], NULL, 16);
1090 sb.bssid[4] = strtol(&bssid[9], NULL, 16);
1091 sb.bssid[5] = strtol(&bssid[12], NULL, 16);
1092 sb.bssid[6] = strtol(&bssid[15], NULL, 16);
1097 sprintf(buf, "%02X:%02X:%02X:%02X:%02X:%02X",
1098 sb.bssid[1], sb.bssid[2], sb.bssid[3],
1099 sb.bssid[4], sb.bssid[5], sb.bssid[6]);
1108 static int nl80211_get_frequency_scan_cb(struct nl_msg *msg, void *arg)
1111 struct nlattr **attr = nl80211_parse(msg);
1112 struct nlattr *binfo[NL80211_BSS_MAX + 1];
1114 static struct nla_policy bss_policy[NL80211_BSS_MAX + 1] = {
1115 [NL80211_BSS_FREQUENCY] = { .type = NLA_U32 },
1116 [NL80211_BSS_STATUS] = { .type = NLA_U32 },
1119 if (attr[NL80211_ATTR_BSS] &&
1120 !nla_parse_nested(binfo, NL80211_BSS_MAX,
1121 attr[NL80211_ATTR_BSS], bss_policy))
1123 if (binfo[NL80211_BSS_STATUS] && binfo[NL80211_BSS_FREQUENCY])
1124 *freq = nla_get_u32(binfo[NL80211_BSS_FREQUENCY]);
1130 static int nl80211_get_frequency_info_cb(struct nl_msg *msg, void *arg)
1133 struct nlattr **tb = nl80211_parse(msg);
1135 if (tb[NL80211_ATTR_WIPHY_FREQ])
1136 *freq = nla_get_u32(tb[NL80211_ATTR_WIPHY_FREQ]);
1141 static int nl80211_get_frequency(const char *ifname, int *buf)
1143 char *res, channel[4], hwmode[2];
1145 /* try to find frequency from interface info */
1146 res = nl80211_phy2ifname(ifname);
1149 nl80211_request(res ? res : ifname, NL80211_CMD_GET_INTERFACE, 0,
1150 nl80211_get_frequency_info_cb, buf);
1152 /* failed, try to find frequency from hostapd info */
1154 nl80211_hostapd_query(ifname, "hw_mode", hwmode, sizeof(hwmode),
1155 "channel", channel, sizeof(channel)) == 2)
1157 *buf = nl80211_channel2freq(atoi(channel), hwmode);
1160 /* failed, try to find frequency from scan results */
1163 res = nl80211_phy2ifname(ifname);
1165 nl80211_request(res ? res : ifname, NL80211_CMD_GET_SCAN, NLM_F_DUMP,
1166 nl80211_get_frequency_scan_cb, buf);
1169 return (*buf == 0) ? -1 : 0;
1172 static int nl80211_get_channel(const char *ifname, int *buf)
1174 if (!nl80211_get_frequency(ifname, buf))
1176 *buf = nl80211_freq2channel(*buf);
1183 static int nl80211_get_txpower_cb(struct nl_msg *msg, void *arg)
1186 struct nlattr **tb = nl80211_parse(msg);
1188 if (tb[NL80211_ATTR_WIPHY_TX_POWER_LEVEL])
1189 *buf = iwinfo_mbm2dbm(nla_get_u32(tb[NL80211_ATTR_WIPHY_TX_POWER_LEVEL]));
1194 static int nl80211_get_txpower(const char *ifname, int *buf)
1198 res = nl80211_phy2ifname(ifname);
1201 if (nl80211_request(res ? res : ifname, NL80211_CMD_GET_INTERFACE, 0,
1202 nl80211_get_txpower_cb, buf))
1209 static int nl80211_fill_signal_cb(struct nl_msg *msg, void *arg)
1213 struct nl80211_rssi_rate *rr = arg;
1214 struct nlattr **attr = nl80211_parse(msg);
1215 struct nlattr *sinfo[NL80211_STA_INFO_MAX + 1];
1216 struct nlattr *rinfo[NL80211_RATE_INFO_MAX + 1];
1218 static struct nla_policy stats_policy[NL80211_STA_INFO_MAX + 1] = {
1219 [NL80211_STA_INFO_INACTIVE_TIME] = { .type = NLA_U32 },
1220 [NL80211_STA_INFO_RX_BYTES] = { .type = NLA_U32 },
1221 [NL80211_STA_INFO_TX_BYTES] = { .type = NLA_U32 },
1222 [NL80211_STA_INFO_RX_PACKETS] = { .type = NLA_U32 },
1223 [NL80211_STA_INFO_TX_PACKETS] = { .type = NLA_U32 },
1224 [NL80211_STA_INFO_SIGNAL] = { .type = NLA_U8 },
1225 [NL80211_STA_INFO_TX_BITRATE] = { .type = NLA_NESTED },
1226 [NL80211_STA_INFO_LLID] = { .type = NLA_U16 },
1227 [NL80211_STA_INFO_PLID] = { .type = NLA_U16 },
1228 [NL80211_STA_INFO_PLINK_STATE] = { .type = NLA_U8 },
1231 static struct nla_policy rate_policy[NL80211_RATE_INFO_MAX + 1] = {
1232 [NL80211_RATE_INFO_BITRATE] = { .type = NLA_U16 },
1233 [NL80211_RATE_INFO_MCS] = { .type = NLA_U8 },
1234 [NL80211_RATE_INFO_40_MHZ_WIDTH] = { .type = NLA_FLAG },
1235 [NL80211_RATE_INFO_SHORT_GI] = { .type = NLA_FLAG },
1238 if (attr[NL80211_ATTR_STA_INFO])
1240 if (!nla_parse_nested(sinfo, NL80211_STA_INFO_MAX,
1241 attr[NL80211_ATTR_STA_INFO], stats_policy))
1243 if (sinfo[NL80211_STA_INFO_SIGNAL])
1245 dbm = nla_get_u8(sinfo[NL80211_STA_INFO_SIGNAL]);
1246 rr->rssi = rr->rssi ? (int8_t)((rr->rssi + dbm) / 2) : dbm;
1249 if (sinfo[NL80211_STA_INFO_TX_BITRATE])
1251 if (!nla_parse_nested(rinfo, NL80211_RATE_INFO_MAX,
1252 sinfo[NL80211_STA_INFO_TX_BITRATE],
1255 if (rinfo[NL80211_RATE_INFO_BITRATE])
1257 mbit = nla_get_u16(rinfo[NL80211_RATE_INFO_BITRATE]);
1259 ? (int16_t)((rr->rate + mbit) / 2) : mbit;
1269 static void nl80211_fill_signal(const char *ifname, struct nl80211_rssi_rate *r)
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 nl80211_request(de->d_name, NL80211_CMD_GET_STATION,
1286 NLM_F_DUMP, nl80211_fill_signal_cb, r);
1294 static int nl80211_get_bitrate(const char *ifname, int *buf)
1296 struct nl80211_rssi_rate rr;
1298 nl80211_fill_signal(ifname, &rr);
1302 *buf = (rr.rate * 100);
1309 static int nl80211_get_signal(const char *ifname, int *buf)
1311 struct nl80211_rssi_rate rr;
1313 nl80211_fill_signal(ifname, &rr);
1324 static int nl80211_get_noise_cb(struct nl_msg *msg, void *arg)
1326 int8_t *noise = arg;
1327 struct nlattr **tb = nl80211_parse(msg);
1328 struct nlattr *si[NL80211_SURVEY_INFO_MAX + 1];
1330 static struct nla_policy sp[NL80211_SURVEY_INFO_MAX + 1] = {
1331 [NL80211_SURVEY_INFO_FREQUENCY] = { .type = NLA_U32 },
1332 [NL80211_SURVEY_INFO_NOISE] = { .type = NLA_U8 },
1335 if (!tb[NL80211_ATTR_SURVEY_INFO])
1338 if (nla_parse_nested(si, NL80211_SURVEY_INFO_MAX,
1339 tb[NL80211_ATTR_SURVEY_INFO], sp))
1342 if (!si[NL80211_SURVEY_INFO_NOISE])
1345 if (!*noise || si[NL80211_SURVEY_INFO_IN_USE])
1346 *noise = (int8_t)nla_get_u8(si[NL80211_SURVEY_INFO_NOISE]);
1352 static int nl80211_get_noise(const char *ifname, int *buf)
1356 if (nl80211_request(ifname, NL80211_CMD_GET_SURVEY, NLM_F_DUMP,
1357 nl80211_get_noise_cb, &noise))
1368 static int nl80211_get_quality(const char *ifname, int *buf)
1372 if (!nl80211_get_signal(ifname, &signal))
1374 /* A positive signal level is usually just a quality
1375 * value, pass through as-is */
1381 /* The cfg80211 wext compat layer assumes a signal range
1382 * of -110 dBm to -40 dBm, the quality value is derived
1383 * by adding 110 to the signal level */
1388 else if (signal > -40)
1391 *buf = (signal + 110);
1400 static int nl80211_get_quality_max(const char *ifname, int *buf)
1402 /* The cfg80211 wext compat layer assumes a maximum
1409 static int nl80211_check_wepkey(const char *key)
1413 switch (strlen(key))
1417 return IWINFO_CIPHER_WEP40;
1421 return IWINFO_CIPHER_WEP104;
1428 static int nl80211_get_encryption(const char *ifname, char *buf)
1430 char wpa[2], wpa_key_mgmt[16], wpa_pairwise[16], wpa_groupwise[16];
1431 char auth_algs[2], wep_key0[27], wep_key1[27], wep_key2[27], wep_key3[27];
1433 struct iwinfo_crypto_entry *c = (struct iwinfo_crypto_entry *)buf;
1435 /* WPA supplicant */
1436 if (nl80211_wpactl_query(ifname,
1437 "pairwise_cipher", wpa_pairwise, sizeof(wpa_pairwise),
1438 "group_cipher", wpa_groupwise, sizeof(wpa_groupwise),
1439 "key_mgmt", wpa_key_mgmt, sizeof(wpa_key_mgmt)))
1442 if (!strcmp(wpa_key_mgmt, "NONE"))
1444 if (strstr(wpa_pairwise, "WEP-40"))
1445 c->pair_ciphers |= IWINFO_CIPHER_WEP40;
1446 else if (strstr(wpa_pairwise, "WEP-104"))
1447 c->pair_ciphers |= IWINFO_CIPHER_WEP104;
1449 if (strstr(wpa_groupwise, "WEP-40"))
1450 c->group_ciphers |= IWINFO_CIPHER_WEP40;
1451 else if (strstr(wpa_groupwise, "WEP-104"))
1452 c->group_ciphers |= IWINFO_CIPHER_WEP104;
1454 c->enabled = !!(c->pair_ciphers | c->group_ciphers);
1455 c->auth_suites |= IWINFO_KMGMT_NONE;
1456 c->auth_algs |= IWINFO_AUTH_OPEN; /* XXX: assumption */
1460 else if (strstr(wpa_key_mgmt, "WPA"))
1462 if (strstr(wpa_pairwise, "TKIP"))
1463 c->pair_ciphers |= IWINFO_CIPHER_TKIP;
1464 else if (strstr(wpa_pairwise, "CCMP"))
1465 c->pair_ciphers |= IWINFO_CIPHER_CCMP;
1466 else if (strstr(wpa_pairwise, "NONE"))
1467 c->pair_ciphers |= IWINFO_CIPHER_NONE;
1468 else if (strstr(wpa_pairwise, "WEP-40"))
1469 c->pair_ciphers |= IWINFO_CIPHER_WEP40;
1470 else if (strstr(wpa_pairwise, "WEP-104"))
1471 c->pair_ciphers |= IWINFO_CIPHER_WEP104;
1473 if (strstr(wpa_groupwise, "TKIP"))
1474 c->group_ciphers |= IWINFO_CIPHER_TKIP;
1475 else if (strstr(wpa_groupwise, "CCMP"))
1476 c->group_ciphers |= IWINFO_CIPHER_CCMP;
1477 else if (strstr(wpa_groupwise, "NONE"))
1478 c->group_ciphers |= IWINFO_CIPHER_NONE;
1479 else if (strstr(wpa_groupwise, "WEP-40"))
1480 c->group_ciphers |= IWINFO_CIPHER_WEP40;
1481 else if (strstr(wpa_groupwise, "WEP-104"))
1482 c->group_ciphers |= IWINFO_CIPHER_WEP104;
1484 if (strstr(wpa_key_mgmt, "WPA2"))
1486 else if (strstr(wpa_key_mgmt, "WPA"))
1489 if (strstr(wpa_key_mgmt, "PSK"))
1490 c->auth_suites |= IWINFO_KMGMT_PSK;
1491 else if (strstr(wpa_key_mgmt, "EAP") ||
1492 strstr(wpa_key_mgmt, "802.1X"))
1493 c->auth_suites |= IWINFO_KMGMT_8021x;
1494 else if (strstr(wpa_key_mgmt, "NONE"))
1495 c->auth_suites |= IWINFO_KMGMT_NONE;
1497 c->enabled = !!(c->wpa_version && c->auth_suites);
1504 else if (nl80211_hostapd_query(ifname,
1505 "wpa", wpa, sizeof(wpa),
1506 "wpa_key_mgmt", wpa_key_mgmt, sizeof(wpa_key_mgmt),
1507 "wpa_pairwise", wpa_pairwise, sizeof(wpa_pairwise),
1508 "auth_algs", auth_algs, sizeof(auth_algs),
1509 "wep_key0", wep_key0, sizeof(wep_key0),
1510 "wep_key1", wep_key1, sizeof(wep_key1),
1511 "wep_key2", wep_key2, sizeof(wep_key2),
1512 "wep_key3", wep_key3, sizeof(wep_key3)))
1514 c->wpa_version = wpa[0] ? atoi(wpa) : 0;
1516 if (wpa_key_mgmt[0])
1518 if (strstr(wpa_key_mgmt, "PSK"))
1519 c->auth_suites |= IWINFO_KMGMT_PSK;
1521 if (strstr(wpa_key_mgmt, "EAP"))
1522 c->auth_suites |= IWINFO_KMGMT_8021x;
1524 if (strstr(wpa_key_mgmt, "NONE"))
1525 c->auth_suites |= IWINFO_KMGMT_NONE;
1529 c->auth_suites |= IWINFO_KMGMT_PSK;
1532 if (wpa_pairwise[0])
1534 if (strstr(wpa_pairwise, "TKIP"))
1535 c->pair_ciphers |= IWINFO_CIPHER_TKIP;
1537 if (strstr(wpa_pairwise, "CCMP"))
1538 c->pair_ciphers |= IWINFO_CIPHER_CCMP;
1540 if (strstr(wpa_pairwise, "NONE"))
1541 c->pair_ciphers |= IWINFO_CIPHER_NONE;
1546 switch(atoi(auth_algs))
1549 c->auth_algs |= IWINFO_AUTH_OPEN;
1553 c->auth_algs |= IWINFO_AUTH_SHARED;
1557 c->auth_algs |= IWINFO_AUTH_OPEN;
1558 c->auth_algs |= IWINFO_AUTH_SHARED;
1562 c->pair_ciphers |= nl80211_check_wepkey(wep_key0);
1563 c->pair_ciphers |= nl80211_check_wepkey(wep_key1);
1564 c->pair_ciphers |= nl80211_check_wepkey(wep_key2);
1565 c->pair_ciphers |= nl80211_check_wepkey(wep_key3);
1568 c->group_ciphers = c->pair_ciphers;
1569 c->enabled = (c->wpa_version || c->pair_ciphers) ? 1 : 0;
1577 static int nl80211_get_phyname(const char *ifname, char *buf)
1581 name = nl80211_ifname2phy(ifname);
1588 else if ((name = nl80211_phy2ifname(ifname)) != NULL)
1590 name = nl80211_ifname2phy(name);
1594 strcpy(buf, ifname);
1603 static void nl80211_parse_rateinfo(struct nlattr **ri,
1604 struct iwinfo_rate_entry *re)
1606 if (ri[NL80211_RATE_INFO_BITRATE32])
1607 re->rate = nla_get_u32(ri[NL80211_RATE_INFO_BITRATE32]) * 100;
1608 else if (ri[NL80211_RATE_INFO_BITRATE])
1609 re->rate = nla_get_u16(ri[NL80211_RATE_INFO_BITRATE]) * 100;
1611 if (ri[NL80211_RATE_INFO_VHT_MCS])
1614 re->mcs = nla_get_u8(ri[NL80211_RATE_INFO_VHT_MCS]);
1616 if (ri[NL80211_RATE_INFO_VHT_NSS])
1617 re->nss = nla_get_u8(ri[NL80211_RATE_INFO_VHT_NSS]);
1619 else if (ri[NL80211_RATE_INFO_MCS])
1622 re->mcs = nla_get_u8(ri[NL80211_RATE_INFO_MCS]);
1625 if (ri[NL80211_RATE_INFO_5_MHZ_WIDTH])
1627 else if (ri[NL80211_RATE_INFO_10_MHZ_WIDTH])
1629 else if (ri[NL80211_RATE_INFO_40_MHZ_WIDTH])
1631 else if (ri[NL80211_RATE_INFO_80_MHZ_WIDTH])
1633 else if (ri[NL80211_RATE_INFO_80P80_MHZ_WIDTH] ||
1634 ri[NL80211_RATE_INFO_160_MHZ_WIDTH])
1639 if (ri[NL80211_RATE_INFO_SHORT_GI])
1640 re->is_short_gi = 1;
1642 re->is_40mhz = (re->mhz == 40);
1645 static int nl80211_get_assoclist_cb(struct nl_msg *msg, void *arg)
1647 struct nl80211_array_buf *arr = arg;
1648 struct iwinfo_assoclist_entry *e = arr->buf;
1649 struct nlattr **attr = nl80211_parse(msg);
1650 struct nlattr *sinfo[NL80211_STA_INFO_MAX + 1];
1651 struct nlattr *rinfo[NL80211_RATE_INFO_MAX + 1];
1652 struct nl80211_sta_flag_update *sta_flags;
1654 static struct nla_policy stats_policy[NL80211_STA_INFO_MAX + 1] = {
1655 [NL80211_STA_INFO_INACTIVE_TIME] = { .type = NLA_U32 },
1656 [NL80211_STA_INFO_RX_PACKETS] = { .type = NLA_U32 },
1657 [NL80211_STA_INFO_TX_PACKETS] = { .type = NLA_U32 },
1658 [NL80211_STA_INFO_RX_BITRATE] = { .type = NLA_NESTED },
1659 [NL80211_STA_INFO_TX_BITRATE] = { .type = NLA_NESTED },
1660 [NL80211_STA_INFO_SIGNAL] = { .type = NLA_U8 },
1661 [NL80211_STA_INFO_RX_BYTES] = { .type = NLA_U32 },
1662 [NL80211_STA_INFO_TX_BYTES] = { .type = NLA_U32 },
1663 [NL80211_STA_INFO_TX_RETRIES] = { .type = NLA_U32 },
1664 [NL80211_STA_INFO_TX_FAILED] = { .type = NLA_U32 },
1665 [NL80211_STA_INFO_T_OFFSET] = { .type = NLA_U64 },
1666 [NL80211_STA_INFO_STA_FLAGS] =
1667 { .minlen = sizeof(struct nl80211_sta_flag_update) },
1670 static struct nla_policy rate_policy[NL80211_RATE_INFO_MAX + 1] = {
1671 [NL80211_RATE_INFO_BITRATE] = { .type = NLA_U16 },
1672 [NL80211_RATE_INFO_MCS] = { .type = NLA_U8 },
1673 [NL80211_RATE_INFO_40_MHZ_WIDTH] = { .type = NLA_FLAG },
1674 [NL80211_RATE_INFO_SHORT_GI] = { .type = NLA_FLAG },
1677 /* advance to end of array */
1679 memset(e, 0, sizeof(*e));
1681 if (attr[NL80211_ATTR_MAC])
1682 memcpy(e->mac, nla_data(attr[NL80211_ATTR_MAC]), 6);
1684 if (attr[NL80211_ATTR_STA_INFO] &&
1685 !nla_parse_nested(sinfo, NL80211_STA_INFO_MAX,
1686 attr[NL80211_ATTR_STA_INFO], stats_policy))
1688 if (sinfo[NL80211_STA_INFO_SIGNAL])
1689 e->signal = nla_get_u8(sinfo[NL80211_STA_INFO_SIGNAL]);
1691 if (sinfo[NL80211_STA_INFO_INACTIVE_TIME])
1692 e->inactive = nla_get_u32(sinfo[NL80211_STA_INFO_INACTIVE_TIME]);
1694 if (sinfo[NL80211_STA_INFO_RX_PACKETS])
1695 e->rx_packets = nla_get_u32(sinfo[NL80211_STA_INFO_RX_PACKETS]);
1697 if (sinfo[NL80211_STA_INFO_TX_PACKETS])
1698 e->tx_packets = nla_get_u32(sinfo[NL80211_STA_INFO_TX_PACKETS]);
1700 if (sinfo[NL80211_STA_INFO_RX_BITRATE] &&
1701 !nla_parse_nested(rinfo, NL80211_RATE_INFO_MAX,
1702 sinfo[NL80211_STA_INFO_RX_BITRATE], rate_policy))
1703 nl80211_parse_rateinfo(rinfo, &e->rx_rate);
1705 if (sinfo[NL80211_STA_INFO_TX_BITRATE] &&
1706 !nla_parse_nested(rinfo, NL80211_RATE_INFO_MAX,
1707 sinfo[NL80211_STA_INFO_TX_BITRATE], rate_policy))
1708 nl80211_parse_rateinfo(rinfo, &e->tx_rate);
1710 if (sinfo[NL80211_STA_INFO_RX_BYTES])
1711 e->rx_bytes = nla_get_u32(sinfo[NL80211_STA_INFO_RX_BYTES]);
1713 if (sinfo[NL80211_STA_INFO_TX_BYTES])
1714 e->tx_bytes = nla_get_u32(sinfo[NL80211_STA_INFO_TX_BYTES]);
1716 if (sinfo[NL80211_STA_INFO_TX_RETRIES])
1717 e->tx_retries = nla_get_u32(sinfo[NL80211_STA_INFO_TX_RETRIES]);
1719 if (sinfo[NL80211_STA_INFO_TX_FAILED])
1720 e->tx_failed = nla_get_u32(sinfo[NL80211_STA_INFO_TX_FAILED]);
1722 if (sinfo[NL80211_STA_INFO_T_OFFSET])
1723 e->t_offset = nla_get_u64(sinfo[NL80211_STA_INFO_T_OFFSET]);
1726 if (sinfo[NL80211_STA_INFO_STA_FLAGS])
1728 sta_flags = (struct nl80211_sta_flag_update *)
1729 nla_data(sinfo[NL80211_STA_INFO_STA_FLAGS]);
1731 if (sta_flags->mask & BIT(NL80211_STA_FLAG_AUTHORIZED) &&
1732 sta_flags->set & BIT(NL80211_STA_FLAG_AUTHORIZED))
1733 e->is_authorized = 1;
1735 if (sta_flags->mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1736 sta_flags->set & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1737 e->is_authenticated = 1;
1739 if (sta_flags->mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) &&
1740 sta_flags->set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
1741 e->is_preamble_short = 1;
1743 if (sta_flags->mask & BIT(NL80211_STA_FLAG_WME) &&
1744 sta_flags->set & BIT(NL80211_STA_FLAG_WME))
1747 if (sta_flags->mask & BIT(NL80211_STA_FLAG_MFP) &&
1748 sta_flags->set & BIT(NL80211_STA_FLAG_MFP))
1751 if (sta_flags->mask & BIT(NL80211_STA_FLAG_TDLS_PEER) &&
1752 sta_flags->set & BIT(NL80211_STA_FLAG_TDLS_PEER))
1757 e->noise = 0; /* filled in by caller */
1763 static int nl80211_get_assoclist(const char *ifname, char *buf, int *len)
1768 struct nl80211_array_buf arr = { .buf = buf, .count = 0 };
1769 struct iwinfo_assoclist_entry *e;
1771 if ((d = opendir("/sys/class/net")) != NULL)
1773 while ((de = readdir(d)) != NULL)
1775 if (!strncmp(de->d_name, ifname, strlen(ifname)) &&
1776 (!de->d_name[strlen(ifname)] ||
1777 !strncmp(&de->d_name[strlen(ifname)], ".sta", 4)))
1779 nl80211_request(de->d_name, NL80211_CMD_GET_STATION,
1780 NLM_F_DUMP, nl80211_get_assoclist_cb, &arr);
1786 if (!nl80211_get_noise(ifname, &noise))
1787 for (i = 0, e = arr.buf; i < arr.count; i++, e++)
1790 *len = (arr.count * sizeof(struct iwinfo_assoclist_entry));
1797 static int nl80211_get_txpwrlist_cb(struct nl_msg *msg, void *arg)
1800 int ch_cur, ch_cmp, bands_remain, freqs_remain;
1802 struct nlattr **attr = nl80211_parse(msg);
1803 struct nlattr *bands[NL80211_BAND_ATTR_MAX + 1];
1804 struct nlattr *freqs[NL80211_FREQUENCY_ATTR_MAX + 1];
1805 struct nlattr *band, *freq;
1807 static struct nla_policy freq_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = {
1808 [NL80211_FREQUENCY_ATTR_FREQ] = { .type = NLA_U32 },
1809 [NL80211_FREQUENCY_ATTR_DISABLED] = { .type = NLA_FLAG },
1810 [NL80211_FREQUENCY_ATTR_PASSIVE_SCAN] = { .type = NLA_FLAG },
1811 [NL80211_FREQUENCY_ATTR_NO_IBSS] = { .type = NLA_FLAG },
1812 [NL80211_FREQUENCY_ATTR_RADAR] = { .type = NLA_FLAG },
1813 [NL80211_FREQUENCY_ATTR_MAX_TX_POWER] = { .type = NLA_U32 },
1816 ch_cur = *dbm_max; /* value int* is initialized with channel by caller */
1819 nla_for_each_nested(band, attr[NL80211_ATTR_WIPHY_BANDS], bands_remain)
1821 nla_parse(bands, NL80211_BAND_ATTR_MAX, nla_data(band),
1822 nla_len(band), NULL);
1824 nla_for_each_nested(freq, bands[NL80211_BAND_ATTR_FREQS], freqs_remain)
1826 nla_parse(freqs, NL80211_FREQUENCY_ATTR_MAX,
1827 nla_data(freq), nla_len(freq), freq_policy);
1829 ch_cmp = nl80211_freq2channel(nla_get_u32(
1830 freqs[NL80211_FREQUENCY_ATTR_FREQ]));
1832 if ((!ch_cur || (ch_cmp == ch_cur)) &&
1833 freqs[NL80211_FREQUENCY_ATTR_MAX_TX_POWER])
1835 *dbm_max = (int)(0.01 * nla_get_u32(
1836 freqs[NL80211_FREQUENCY_ATTR_MAX_TX_POWER]));
1846 static int nl80211_get_txpwrlist(const char *ifname, char *buf, int *len)
1849 int dbm_max = -1, dbm_cur, dbm_cnt;
1850 struct nl80211_msg_conveyor *req;
1851 struct iwinfo_txpwrlist_entry entry;
1853 if (nl80211_get_channel(ifname, &ch_cur))
1856 /* initialize the value pointer with channel for callback */
1859 err = nl80211_request(ifname, NL80211_CMD_GET_WIPHY, 0,
1860 nl80211_get_txpwrlist_cb, &dbm_max);
1864 for (dbm_cur = 0, dbm_cnt = 0;
1866 dbm_cur++, dbm_cnt++)
1868 entry.dbm = dbm_cur;
1869 entry.mw = iwinfo_dbm2mw(dbm_cur);
1871 memcpy(&buf[dbm_cnt * sizeof(entry)], &entry, sizeof(entry));
1874 entry.dbm = dbm_max;
1875 entry.mw = iwinfo_dbm2mw(dbm_max);
1877 memcpy(&buf[dbm_cnt * sizeof(entry)], &entry, sizeof(entry));
1880 *len = dbm_cnt * sizeof(entry);
1887 static void nl80211_get_scancrypto(const char *spec,
1888 struct iwinfo_crypto_entry *c)
1890 if (strstr(spec, "WPA") || strstr(spec, "WEP"))
1894 if (strstr(spec, "WPA2-") && strstr(spec, "WPA-"))
1897 else if (strstr(spec, "WPA2"))
1900 else if (strstr(spec, "WPA"))
1903 else if (strstr(spec, "WEP"))
1904 c->auth_algs = IWINFO_AUTH_OPEN | IWINFO_AUTH_SHARED;
1907 if (strstr(spec, "PSK"))
1908 c->auth_suites |= IWINFO_KMGMT_PSK;
1910 if (strstr(spec, "802.1X") || strstr(spec, "EAP"))
1911 c->auth_suites |= IWINFO_KMGMT_8021x;
1913 if (strstr(spec, "WPA-NONE"))
1914 c->auth_suites |= IWINFO_KMGMT_NONE;
1917 if (strstr(spec, "TKIP"))
1918 c->pair_ciphers |= IWINFO_CIPHER_TKIP;
1920 if (strstr(spec, "CCMP"))
1921 c->pair_ciphers |= IWINFO_CIPHER_CCMP;
1923 if (strstr(spec, "WEP-40"))
1924 c->pair_ciphers |= IWINFO_CIPHER_WEP40;
1926 if (strstr(spec, "WEP-104"))
1927 c->pair_ciphers |= IWINFO_CIPHER_WEP104;
1929 c->group_ciphers = c->pair_ciphers;
1938 struct nl80211_scanlist {
1939 struct iwinfo_scanlist_entry *e;
1944 static void nl80211_get_scanlist_ie(struct nlattr **bss,
1945 struct iwinfo_scanlist_entry *e)
1947 int ielen = nla_len(bss[NL80211_BSS_INFORMATION_ELEMENTS]);
1948 unsigned char *ie = nla_data(bss[NL80211_BSS_INFORMATION_ELEMENTS]);
1949 static unsigned char ms_oui[3] = { 0x00, 0x50, 0xf2 };
1952 while (ielen >= 2 && ielen >= ie[1])
1957 len = min(ie[1], IWINFO_ESSID_MAX_SIZE);
1958 memcpy(e->ssid, ie + 2, len);
1963 iwinfo_parse_rsn(&e->crypto, ie + 2, ie[1],
1964 IWINFO_CIPHER_CCMP, IWINFO_KMGMT_8021x);
1967 case 221: /* Vendor */
1968 if (ie[1] >= 4 && !memcmp(ie + 2, ms_oui, 3) && ie[5] == 1)
1969 iwinfo_parse_rsn(&e->crypto, ie + 6, ie[1] - 4,
1970 IWINFO_CIPHER_TKIP, IWINFO_KMGMT_PSK);
1979 static int nl80211_get_scanlist_cb(struct nl_msg *msg, void *arg)
1984 struct nl80211_scanlist *sl = arg;
1985 struct nlattr **tb = nl80211_parse(msg);
1986 struct nlattr *bss[NL80211_BSS_MAX + 1];
1988 static struct nla_policy bss_policy[NL80211_BSS_MAX + 1] = {
1989 [NL80211_BSS_TSF] = { .type = NLA_U64 },
1990 [NL80211_BSS_FREQUENCY] = { .type = NLA_U32 },
1991 [NL80211_BSS_BSSID] = { 0 },
1992 [NL80211_BSS_BEACON_INTERVAL] = { .type = NLA_U16 },
1993 [NL80211_BSS_CAPABILITY] = { .type = NLA_U16 },
1994 [NL80211_BSS_INFORMATION_ELEMENTS] = { 0 },
1995 [NL80211_BSS_SIGNAL_MBM] = { .type = NLA_U32 },
1996 [NL80211_BSS_SIGNAL_UNSPEC] = { .type = NLA_U8 },
1997 [NL80211_BSS_STATUS] = { .type = NLA_U32 },
1998 [NL80211_BSS_SEEN_MS_AGO] = { .type = NLA_U32 },
1999 [NL80211_BSS_BEACON_IES] = { 0 },
2002 if (!tb[NL80211_ATTR_BSS] ||
2003 nla_parse_nested(bss, NL80211_BSS_MAX, tb[NL80211_ATTR_BSS],
2005 !bss[NL80211_BSS_BSSID])
2010 if (bss[NL80211_BSS_CAPABILITY])
2011 caps = nla_get_u16(bss[NL80211_BSS_CAPABILITY]);
2015 memset(sl->e, 0, sizeof(*sl->e));
2016 memcpy(sl->e->mac, nla_data(bss[NL80211_BSS_BSSID]), 6);
2019 sl->e->mode = IWINFO_OPMODE_ADHOC;
2020 else if (caps & (1<<0))
2021 sl->e->mode = IWINFO_OPMODE_MASTER;
2023 sl->e->mode = IWINFO_OPMODE_MESHPOINT;
2026 sl->e->crypto.enabled = 1;
2028 if (bss[NL80211_BSS_FREQUENCY])
2029 sl->e->channel = nl80211_freq2channel(nla_get_u32(
2030 bss[NL80211_BSS_FREQUENCY]));
2032 if (bss[NL80211_BSS_INFORMATION_ELEMENTS])
2033 nl80211_get_scanlist_ie(bss, sl->e);
2035 if (bss[NL80211_BSS_SIGNAL_MBM])
2038 (uint8_t)((int32_t)nla_get_u32(bss[NL80211_BSS_SIGNAL_MBM]) / 100);
2040 rssi = sl->e->signal - 0x100;
2044 else if (rssi > -40)
2047 sl->e->quality = (rssi + 110);
2048 sl->e->quality_max = 70;
2051 if (sl->e->crypto.enabled && !sl->e->crypto.wpa_version)
2053 sl->e->crypto.auth_algs = IWINFO_AUTH_OPEN | IWINFO_AUTH_SHARED;
2054 sl->e->crypto.pair_ciphers = IWINFO_CIPHER_WEP40 | IWINFO_CIPHER_WEP104;
2063 static int nl80211_get_scanlist_nl(const char *ifname, char *buf, int *len)
2065 struct nl80211_scanlist sl = { .e = (struct iwinfo_scanlist_entry *)buf };
2067 if (nl80211_request(ifname, NL80211_CMD_TRIGGER_SCAN, 0, NULL, NULL))
2070 if (nl80211_wait("nl80211", "scan", NL80211_CMD_NEW_SCAN_RESULTS))
2073 if (nl80211_request(ifname, NL80211_CMD_GET_SCAN, NLM_F_DUMP,
2074 nl80211_get_scanlist_cb, &sl))
2077 *len = sl.len * sizeof(struct iwinfo_scanlist_entry);
2085 static int wpasupp_ssid_decode(const char *in, char *out, int outlen)
2088 (((x) >= 'a') ? ((x) - 'a' + 10) : \
2089 (((x) >= 'A') ? ((x) - 'A' + 10) : ((x) - '0')))
2095 if (len + 1 >= outlen)
2105 out[len++] = '\n'; in++;
2109 out[len++] = '\r'; in++;
2113 out[len++] = '\t'; in++;
2117 out[len++] = '\033'; in++;
2121 if (isxdigit(*(in+1)) && isxdigit(*(in+2)))
2122 out[len++] = hex(*(in+1)) * 16 + hex(*(in+2));
2144 static int nl80211_get_scanlist_wpactl(const char *ifname, char *buf, int *len)
2146 int sock, qmax, rssi, tries, count = -1, ready = 0;
2147 char *pos, *line, *bssid, *freq, *signal, *flags, *ssid, reply[4096];
2148 struct sockaddr_un local = { 0 };
2149 struct iwinfo_scanlist_entry *e = (struct iwinfo_scanlist_entry *)buf;
2151 sock = nl80211_wpactl_connect(ifname, &local);
2156 send(sock, "ATTACH", 6, 0);
2157 send(sock, "SCAN", 4, 0);
2160 * wait for scan results:
2161 * nl80211_wpactl_recv() will use a timeout of 256ms and we need to scan
2162 * 72 channels at most. We'll also receive two "OK" messages acknowledging
2163 * the "ATTACH" and "SCAN" commands and the driver might need a bit extra
2164 * time to process the results, so try 72 + 2 + 1 times.
2166 for (tries = 0; tries < 75; tries++)
2168 if (nl80211_wpactl_recv(sock, reply, sizeof(reply)) <= 0)
2171 /* got an event notification */
2172 if (reply[0] == '<')
2174 /* scan results are ready */
2175 if (strstr(reply, "CTRL-EVENT-SCAN-RESULTS"))
2177 /* send "SCAN_RESULTS" command */
2178 ready = (send(sock, "SCAN_RESULTS", 12, 0) == 12);
2182 /* is another unrelated event, retry */
2187 /* receive and parse scan results if the wait above didn't time out */
2188 if (ready && nl80211_wpactl_recv(sock, reply, sizeof(reply)) > 0)
2190 nl80211_get_quality_max(ifname, &qmax);
2192 for (line = strtok_r(reply, "\n", &pos);
2194 line = strtok_r(NULL, "\n", &pos))
2196 /* skip header line */
2203 bssid = strtok(line, "\t");
2204 freq = strtok(NULL, "\t");
2205 signal = strtok(NULL, "\t");
2206 flags = strtok(NULL, "\t");
2207 ssid = strtok(NULL, "\n");
2209 if (!bssid || !freq || !signal || !flags || !ssid)
2213 e->mac[0] = strtol(&bssid[0], NULL, 16);
2214 e->mac[1] = strtol(&bssid[3], NULL, 16);
2215 e->mac[2] = strtol(&bssid[6], NULL, 16);
2216 e->mac[3] = strtol(&bssid[9], NULL, 16);
2217 e->mac[4] = strtol(&bssid[12], NULL, 16);
2218 e->mac[5] = strtol(&bssid[15], NULL, 16);
2221 wpasupp_ssid_decode(ssid, e->ssid, sizeof(e->ssid));
2224 if (strstr(flags, "[MESH]"))
2225 e->mode = IWINFO_OPMODE_MESHPOINT;
2226 else if (strstr(flags, "[IBSS]"))
2227 e->mode = IWINFO_OPMODE_ADHOC;
2229 e->mode = IWINFO_OPMODE_MASTER;
2232 e->channel = nl80211_freq2channel(atoi(freq));
2235 rssi = atoi(signal);
2241 /* The cfg80211 wext compat layer assumes a signal range
2242 * of -110 dBm to -40 dBm, the quality value is derived
2243 * by adding 110 to the signal level */
2246 else if (rssi > -40)
2249 e->quality = (rssi + 110);
2257 e->quality_max = qmax;
2260 nl80211_get_scancrypto(flags, &e->crypto);
2266 *len = count * sizeof(struct iwinfo_scanlist_entry);
2270 unlink(local.sun_path);
2272 return (count >= 0) ? 0 : -1;
2275 static int nl80211_get_scanlist(const char *ifname, char *buf, int *len)
2282 /* Got a radioX pseudo interface, find some interface on it or create one */
2283 if (!strncmp(ifname, "radio", 5))
2285 /* Reuse existing interface */
2286 if ((res = nl80211_phy2ifname(ifname)) != NULL)
2288 return nl80211_get_scanlist(res, buf, len);
2291 /* Need to spawn a temporary iface for scanning */
2292 else if ((res = nl80211_ifadd(ifname)) != NULL)
2294 rv = nl80211_get_scanlist(res, buf, len);
2300 /* WPA supplicant */
2301 if (!nl80211_get_scanlist_wpactl(ifname, buf, len))
2306 /* station / ad-hoc / monitor scan */
2307 else if (!nl80211_get_mode(ifname, &mode) &&
2308 (mode == IWINFO_OPMODE_ADHOC ||
2309 mode == IWINFO_OPMODE_MASTER ||
2310 mode == IWINFO_OPMODE_CLIENT ||
2311 mode == IWINFO_OPMODE_MONITOR) &&
2312 iwinfo_ifup(ifname))
2314 return nl80211_get_scanlist_nl(ifname, buf, len);
2320 /* Got a temp interface, don't create yet another one */
2321 if (!strncmp(ifname, "tmp.", 4))
2323 if (!iwinfo_ifup(ifname))
2326 rv = nl80211_get_scanlist_nl(ifname, buf, len);
2327 iwinfo_ifdown(ifname);
2331 /* Spawn a new scan interface */
2334 if (!(res = nl80211_ifadd(ifname)))
2339 /* if we can take the new interface up, the driver supports an
2340 * additional interface and there's no need to tear down the ap */
2341 if (iwinfo_ifup(res))
2343 rv = nl80211_get_scanlist_nl(res, buf, len);
2347 /* driver cannot create secondary interface, take down ap
2349 else if (iwinfo_ifdown(ifname) && iwinfo_ifup(res))
2351 rv = nl80211_get_scanlist_nl(res, buf, len);
2353 iwinfo_ifup(ifname);
2354 nl80211_hostapd_hup(ifname);
2365 static int nl80211_get_freqlist_cb(struct nl_msg *msg, void *arg)
2367 int bands_remain, freqs_remain;
2369 struct nl80211_array_buf *arr = arg;
2370 struct iwinfo_freqlist_entry *e;
2372 struct nlattr **attr = nl80211_parse(msg);
2373 struct nlattr *bands[NL80211_BAND_ATTR_MAX + 1];
2374 struct nlattr *freqs[NL80211_FREQUENCY_ATTR_MAX + 1];
2375 struct nlattr *band, *freq;
2380 if (attr[NL80211_ATTR_WIPHY_BANDS]) {
2381 nla_for_each_nested(band, attr[NL80211_ATTR_WIPHY_BANDS], bands_remain)
2383 nla_parse(bands, NL80211_BAND_ATTR_MAX,
2384 nla_data(band), nla_len(band), NULL);
2386 if (bands[NL80211_BAND_ATTR_FREQS]) {
2387 nla_for_each_nested(freq, bands[NL80211_BAND_ATTR_FREQS], freqs_remain)
2389 nla_parse(freqs, NL80211_FREQUENCY_ATTR_MAX,
2390 nla_data(freq), nla_len(freq), NULL);
2392 if (!freqs[NL80211_FREQUENCY_ATTR_FREQ] ||
2393 freqs[NL80211_FREQUENCY_ATTR_DISABLED])
2396 e->mhz = nla_get_u32(freqs[NL80211_FREQUENCY_ATTR_FREQ]);
2397 e->channel = nl80211_freq2channel(e->mhz);
2400 freqs[NL80211_FREQUENCY_ATTR_NO_IR] &&
2401 !freqs[NL80211_FREQUENCY_ATTR_RADAR]
2414 static int nl80211_get_freqlist(const char *ifname, char *buf, int *len)
2416 struct nl80211_array_buf arr = { .buf = buf, .count = 0 };
2418 if (nl80211_request(ifname, NL80211_CMD_GET_WIPHY, 0,
2419 nl80211_get_freqlist_cb, &arr))
2422 *len = arr.count * sizeof(struct iwinfo_freqlist_entry);
2430 static int nl80211_get_country_cb(struct nl_msg *msg, void *arg)
2433 struct nlattr **attr = nl80211_parse(msg);
2435 if (attr[NL80211_ATTR_REG_ALPHA2])
2436 memcpy(buf, nla_data(attr[NL80211_ATTR_REG_ALPHA2]), 2);
2443 static int nl80211_get_country(const char *ifname, char *buf)
2445 if (nl80211_request(ifname, NL80211_CMD_GET_REG, 0,
2446 nl80211_get_country_cb, buf))
2452 static int nl80211_get_countrylist(const char *ifname, char *buf, int *len)
2455 struct iwinfo_country_entry *e = (struct iwinfo_country_entry *)buf;
2456 const struct iwinfo_iso3166_label *l;
2458 for (l = IWINFO_ISO3166_NAMES, count = 0; l->iso3166; l++, e++, count++)
2460 e->iso3166 = l->iso3166;
2461 e->ccode[0] = (l->iso3166 / 256);
2462 e->ccode[1] = (l->iso3166 % 256);
2466 *len = (count * sizeof(struct iwinfo_country_entry));
2471 struct nl80211_modes
2478 static int nl80211_get_modelist_cb(struct nl_msg *msg, void *arg)
2480 struct nl80211_modes *m = arg;
2481 int bands_remain, freqs_remain;
2483 uint32_t vht_caps = 0;
2484 struct nlattr **attr = nl80211_parse(msg);
2485 struct nlattr *bands[NL80211_BAND_ATTR_MAX + 1];
2486 struct nlattr *freqs[NL80211_FREQUENCY_ATTR_MAX + 1];
2487 struct nlattr *band, *freq;
2489 if (attr[NL80211_ATTR_WIPHY_BANDS])
2491 nla_for_each_nested(band, attr[NL80211_ATTR_WIPHY_BANDS], bands_remain)
2493 nla_parse(bands, NL80211_BAND_ATTR_MAX,
2494 nla_data(band), nla_len(band), NULL);
2496 if (bands[NL80211_BAND_ATTR_HT_CAPA])
2497 caps = nla_get_u16(bands[NL80211_BAND_ATTR_HT_CAPA]);
2499 /* Treat any nonzero capability as 11n */
2502 m->hw |= IWINFO_80211_N;
2503 m->ht |= IWINFO_HTMODE_HT20;
2505 if (caps & (1 << 1))
2506 m->ht |= IWINFO_HTMODE_HT40;
2509 nla_for_each_nested(freq, bands[NL80211_BAND_ATTR_FREQS],
2512 nla_parse(freqs, NL80211_FREQUENCY_ATTR_MAX,
2513 nla_data(freq), nla_len(freq), NULL);
2515 if (!freqs[NL80211_FREQUENCY_ATTR_FREQ])
2518 if (nla_get_u32(freqs[NL80211_FREQUENCY_ATTR_FREQ]) < 2485)
2520 m->hw |= IWINFO_80211_B;
2521 m->hw |= IWINFO_80211_G;
2523 else if (bands[NL80211_BAND_ATTR_VHT_CAPA])
2525 vht_caps = nla_get_u32(bands[NL80211_BAND_ATTR_VHT_CAPA]);
2527 /* Treat any nonzero capability as 11ac */
2530 m->hw |= IWINFO_80211_AC;
2531 m->ht |= IWINFO_HTMODE_VHT20 | IWINFO_HTMODE_VHT40 | IWINFO_HTMODE_VHT80;
2533 switch ((vht_caps >> 2) & 3)
2536 m->ht |= IWINFO_HTMODE_VHT80_80;
2540 m->ht |= IWINFO_HTMODE_VHT160;
2544 else if (!(m->hw & IWINFO_80211_AC))
2546 m->hw |= IWINFO_80211_A;
2557 static int nl80211_get_hwmodelist(const char *ifname, int *buf)
2559 struct nl80211_modes m = { 0 };
2561 if (nl80211_request(ifname, NL80211_CMD_GET_WIPHY, 0,
2562 nl80211_get_modelist_cb, &m))
2576 static int nl80211_get_htmodelist(const char *ifname, int *buf)
2578 struct nl80211_modes m = { 0 };
2580 if (nl80211_request(ifname, NL80211_CMD_GET_WIPHY, 0,
2581 nl80211_get_modelist_cb, &m))
2596 static int nl80211_get_ifcomb_cb(struct nl_msg *msg, void *arg)
2598 struct nlattr **attr = nl80211_parse(msg);
2599 struct nlattr *comb;
2601 int comb_rem, limit_rem, mode_rem;
2604 if (!attr[NL80211_ATTR_INTERFACE_COMBINATIONS])
2607 nla_for_each_nested(comb, attr[NL80211_ATTR_INTERFACE_COMBINATIONS], comb_rem)
2609 static struct nla_policy iface_combination_policy[NUM_NL80211_IFACE_COMB] = {
2610 [NL80211_IFACE_COMB_LIMITS] = { .type = NLA_NESTED },
2611 [NL80211_IFACE_COMB_MAXNUM] = { .type = NLA_U32 },
2613 struct nlattr *tb_comb[NUM_NL80211_IFACE_COMB+1];
2614 static struct nla_policy iface_limit_policy[NUM_NL80211_IFACE_LIMIT] = {
2615 [NL80211_IFACE_LIMIT_TYPES] = { .type = NLA_NESTED },
2616 [NL80211_IFACE_LIMIT_MAX] = { .type = NLA_U32 },
2618 struct nlattr *tb_limit[NUM_NL80211_IFACE_LIMIT+1];
2619 struct nlattr *limit;
2621 nla_parse_nested(tb_comb, NUM_NL80211_IFACE_COMB, comb, iface_combination_policy);
2623 if (!tb_comb[NL80211_IFACE_COMB_LIMITS])
2626 nla_for_each_nested(limit, tb_comb[NL80211_IFACE_COMB_LIMITS], limit_rem)
2628 struct nlattr *mode;
2630 nla_parse_nested(tb_limit, NUM_NL80211_IFACE_LIMIT, limit, iface_limit_policy);
2632 if (!tb_limit[NL80211_IFACE_LIMIT_TYPES] ||
2633 !tb_limit[NL80211_IFACE_LIMIT_MAX])
2636 if (nla_get_u32(tb_limit[NL80211_IFACE_LIMIT_MAX]) < 2)
2639 nla_for_each_nested(mode, tb_limit[NL80211_IFACE_LIMIT_TYPES], mode_rem) {
2640 if (nla_type(mode) == NL80211_IFTYPE_AP)
2649 static int nl80211_get_mbssid_support(const char *ifname, int *buf)
2651 if (nl80211_request(ifname, NL80211_CMD_GET_WIPHY, 0,
2652 nl80211_get_ifcomb_cb, buf))
2658 static int nl80211_get_hardware_id(const char *ifname, char *buf)
2663 /* Got a radioX pseudo interface, find some interface on it or create one */
2664 if (!strncmp(ifname, "radio", 5))
2666 /* Reuse existing interface */
2667 if ((res = nl80211_phy2ifname(ifname)) != NULL)
2669 rv = wext_ops.hardware_id(res, buf);
2672 /* Need to spawn a temporary iface for finding IDs */
2673 else if ((res = nl80211_ifadd(ifname)) != NULL)
2675 rv = wext_ops.hardware_id(res, buf);
2681 rv = wext_ops.hardware_id(ifname, buf);
2684 /* Failed to obtain hardware IDs, search board config */
2687 rv = iwinfo_hardware_id_from_mtd((struct iwinfo_hardware_id *)buf);
2693 static const struct iwinfo_hardware_entry *
2694 nl80211_get_hardware_entry(const char *ifname)
2696 struct iwinfo_hardware_id id;
2698 if (nl80211_get_hardware_id(ifname, (char *)&id))
2701 return iwinfo_hardware(&id);
2704 static int nl80211_get_hardware_name(const char *ifname, char *buf)
2706 const struct iwinfo_hardware_entry *hw;
2708 if (!(hw = nl80211_get_hardware_entry(ifname)))
2709 sprintf(buf, "Generic MAC80211");
2711 sprintf(buf, "%s %s", hw->vendor_name, hw->device_name);
2716 static int nl80211_get_txpower_offset(const char *ifname, int *buf)
2718 const struct iwinfo_hardware_entry *hw;
2720 if (!(hw = nl80211_get_hardware_entry(ifname)))
2723 *buf = hw->txpower_offset;
2727 static int nl80211_get_frequency_offset(const char *ifname, int *buf)
2729 const struct iwinfo_hardware_entry *hw;
2731 if (!(hw = nl80211_get_hardware_entry(ifname)))
2734 *buf = hw->frequency_offset;
2738 static int nl80211_lookup_phyname(const char *section, char *buf)
2742 if ((idx = nl80211_phy_idx_from_uci(section)) < 0)
2745 sprintf(buf, "phy%d", idx);
2749 const struct iwinfo_ops nl80211_ops = {
2751 .probe = nl80211_probe,
2752 .channel = nl80211_get_channel,
2753 .frequency = nl80211_get_frequency,
2754 .frequency_offset = nl80211_get_frequency_offset,
2755 .txpower = nl80211_get_txpower,
2756 .txpower_offset = nl80211_get_txpower_offset,
2757 .bitrate = nl80211_get_bitrate,
2758 .signal = nl80211_get_signal,
2759 .noise = nl80211_get_noise,
2760 .quality = nl80211_get_quality,
2761 .quality_max = nl80211_get_quality_max,
2762 .mbssid_support = nl80211_get_mbssid_support,
2763 .hwmodelist = nl80211_get_hwmodelist,
2764 .htmodelist = nl80211_get_htmodelist,
2765 .mode = nl80211_get_mode,
2766 .ssid = nl80211_get_ssid,
2767 .bssid = nl80211_get_bssid,
2768 .country = nl80211_get_country,
2769 .hardware_id = nl80211_get_hardware_id,
2770 .hardware_name = nl80211_get_hardware_name,
2771 .encryption = nl80211_get_encryption,
2772 .phyname = nl80211_get_phyname,
2773 .assoclist = nl80211_get_assoclist,
2774 .txpwrlist = nl80211_get_txpwrlist,
2775 .scanlist = nl80211_get_scanlist,
2776 .freqlist = nl80211_get_freqlist,
2777 .countrylist = nl80211_get_countrylist,
2778 .lookup_phy = nl80211_lookup_phyname,
2779 .close = nl80211_close