2 * iwinfo - Wireless Information Library - Broadcom wl.o Backend
4 * Copyright (C) 2009 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 * This code is based on the wlc.c utility published by OpenWrt.org .
22 #include "api/broadcom.h"
24 static int wl_ioctl(const char *name, int cmd, void *buf, int len)
34 strncpy(ifr.ifr_name, name, IFNAMSIZ);
35 ifr.ifr_data = (caddr_t) &ioc;
37 return iwinfo_ioctl(SIOCDEVPRIVATE, &ifr);
40 static int wl_iovar(const char *name, const char *cmd, const char *arg,
41 int arglen, void *buf, int buflen)
43 int cmdlen = strlen(cmd) + 1;
45 memcpy(buf, cmd, cmdlen);
47 if (arg && arglen > 0)
48 memcpy(buf + cmdlen, arg, arglen);
50 return wl_ioctl(name, WLC_GET_VAR, buf, buflen);
53 static struct wl_maclist * wl_read_assoclist(const char *ifname)
55 struct wl_maclist *macs;
56 int maclen = 4 + WL_MAX_STA_COUNT * 6;
58 if (strstr(ifname, "wds"))
61 if ((macs = (struct wl_maclist *) malloc(maclen)) != NULL)
63 memset(macs, 0, maclen);
64 macs->count = WL_MAX_STA_COUNT;
66 if (!wl_ioctl(ifname, WLC_GET_ASSOCLIST, macs, maclen))
76 static int wl_probe(const char *ifname)
79 return (!wl_ioctl(ifname, WLC_GET_MAGIC, &magic, sizeof(magic)) &&
80 (magic == WLC_IOCTL_MAGIC));
83 static void wl_close(void)
88 static int wl_get_mode(const char *ifname, int *buf)
91 int ap, infra, passive;
93 if ((ret = wl_ioctl(ifname, WLC_GET_AP, &ap, sizeof(ap))))
96 if ((ret = wl_ioctl(ifname, WLC_GET_INFRA, &infra, sizeof(infra))))
99 if ((ret = wl_ioctl(ifname, WLC_GET_PASSIVE, &passive, sizeof(passive))))
103 *buf = IWINFO_OPMODE_MONITOR;
105 *buf = IWINFO_OPMODE_ADHOC;
107 *buf = IWINFO_OPMODE_MASTER;
109 *buf = IWINFO_OPMODE_CLIENT;
114 static int wl_get_ssid(const char *ifname, char *buf)
119 if (!(ret = wl_ioctl(ifname, WLC_GET_SSID, &ssid, sizeof(ssid))))
120 memcpy(buf, ssid.ssid, ssid.ssid_len);
125 static int wl_get_bssid(const char *ifname, char *buf)
130 if (!(ret = wl_ioctl(ifname, WLC_GET_BSSID, bssid, 6)))
131 sprintf(buf, "%02X:%02X:%02X:%02X:%02X:%02X",
132 (uint8_t)bssid[0], (uint8_t)bssid[1], (uint8_t)bssid[2],
133 (uint8_t)bssid[3], (uint8_t)bssid[4], (uint8_t)bssid[5]
139 static int wl_get_channel(const char *ifname, int *buf)
141 return wl_ioctl(ifname, WLC_GET_CHANNEL, buf, sizeof(buf));
144 static int wl_get_frequency(const char *ifname, int *buf)
146 return wext_ops.frequency(ifname, buf);
149 static int wl_get_txpower(const char *ifname, int *buf)
151 /* WLC_GET_VAR "qtxpower" */
152 return wext_ops.txpower(ifname, buf);
155 static int wl_get_bitrate(const char *ifname, int *buf)
160 if( !(ret = wl_ioctl(ifname, WLC_GET_RATE, &rate, sizeof(rate))) && (rate > 0))
161 *buf = ((rate / 2) * 1000) + ((rate & 1) ? 500 : 0);
166 static int wl_get_signal(const char *ifname, int *buf)
168 unsigned int ap, rssi, i, rssi_count;
169 int ioctl_req_version = 0x2000;
170 char tmp[WLC_IOCTL_MAXLEN];
171 struct wl_maclist *macs = NULL;
172 wl_sta_rssi_t starssi;
174 memset(tmp, 0, WLC_IOCTL_MAXLEN);
175 memcpy(tmp, &ioctl_req_version, sizeof(ioctl_req_version));
177 wl_ioctl(ifname, WLC_GET_BSS_INFO, tmp, WLC_IOCTL_MAXLEN);
179 if (!wl_ioctl(ifname, WLC_GET_AP, &ap, sizeof(ap)) && !ap)
181 *buf = tmp[WL_BSS_RSSI_OFFSET];
185 rssi = rssi_count = 0;
187 /* Calculate average rssi from conntected stations */
188 if ((macs = wl_read_assoclist(ifname)) != NULL)
190 for (i = 0; i < macs->count; i++)
192 memcpy(starssi.mac, &macs->ea[i], 6);
194 if (!wl_ioctl(ifname, WLC_GET_RSSI, &starssi, 12))
196 rssi -= starssi.rssi;
204 *buf = (rssi == 0 || rssi_count == 0) ? 1 : -(rssi / rssi_count);
210 static int wl_get_noise(const char *ifname, int *buf)
212 unsigned int ap, noise;
213 int ioctl_req_version = 0x2000;
214 char tmp[WLC_IOCTL_MAXLEN];
216 memset(tmp, 0, WLC_IOCTL_MAXLEN);
217 memcpy(tmp, &ioctl_req_version, sizeof(ioctl_req_version));
219 wl_ioctl(ifname, WLC_GET_BSS_INFO, tmp, WLC_IOCTL_MAXLEN);
221 if ((wl_ioctl(ifname, WLC_GET_AP, &ap, sizeof(ap)) < 0) || ap)
223 if (wl_ioctl(ifname, WLC_GET_PHY_NOISE, &noise, sizeof(noise)) < 0)
228 noise = tmp[WL_BSS_NOISE_OFFSET];
236 static int wl_get_quality(const char *ifname, int *buf)
238 return wext_ops.quality(ifname, buf);
241 static int wl_get_quality_max(const char *ifname, int *buf)
243 return wext_ops.quality_max(ifname, buf);
246 static int wl_get_encryption(const char *ifname, char *buf)
248 uint32_t wsec, wauth, wpa;
249 struct iwinfo_crypto_entry *c = (struct iwinfo_crypto_entry *)buf;
251 if( wl_ioctl(ifname, WLC_GET_WPA_AUTH, &wpa, sizeof(uint32_t)) ||
252 wl_ioctl(ifname, WLC_GET_WSEC, &wsec, sizeof(uint32_t)) ||
253 wl_ioctl(ifname, WLC_GET_AUTH, &wauth, sizeof(uint32_t)) )
259 c->pair_ciphers |= IWINFO_CIPHER_TKIP;
263 c->pair_ciphers |= IWINFO_CIPHER_CCMP;
267 c->pair_ciphers |= IWINFO_CIPHER_TKIP;
268 c->pair_ciphers |= IWINFO_CIPHER_CCMP;
276 c->auth_algs |= IWINFO_AUTH_OPEN;
278 else if (wsec && wauth)
279 c->auth_algs |= IWINFO_AUTH_SHARED;
281 /* ToDo: evaluate WEP key lengths */
282 c->pair_ciphers = IWINFO_CIPHER_WEP40 | IWINFO_CIPHER_WEP104;
283 c->auth_suites |= IWINFO_KMGMT_NONE;
288 c->auth_suites |= IWINFO_KMGMT_8021x;
293 c->auth_suites |= IWINFO_KMGMT_PSK;
299 c->auth_suites |= IWINFO_KMGMT_8021x;
304 c->auth_suites |= IWINFO_KMGMT_8021x;
309 c->auth_suites |= IWINFO_KMGMT_PSK;
314 c->auth_suites |= IWINFO_KMGMT_PSK;
321 c->enabled = (c->wpa_version || c->auth_algs) ? 1 : 0;
322 c->group_ciphers = c->pair_ciphers;
327 static int wl_get_phyname(const char *ifname, char *buf)
333 if ((p = strchr(buf, '.')) != NULL)
339 static int wl_get_enctype(const char *ifname, char *buf)
344 if( wl_ioctl(ifname, WLC_GET_WPA_AUTH, &wpa, sizeof(uint32_t)) ||
345 wl_ioctl(ifname, WLC_GET_WSEC, &wsec, sizeof(uint32_t)) )
351 sprintf(algo, "TKIP");
355 sprintf(algo, "CCMP");
359 sprintf(algo, "TKIP, CCMP");
366 sprintf(buf, "%s", wsec ? "WEP" : "None");
370 sprintf(buf, "WPA 802.1X (%s)", algo);
374 sprintf(buf, "WPA PSK (%s)", algo);
378 sprintf(buf, "802.1X (%s)", algo);
382 sprintf(buf, "WPA2 802.1X (%s)", algo);
386 sprintf(buf, "mixed WPA/WPA2 802.1X (%s)", algo);
390 sprintf(buf, "WPA2 PSK (%s)", algo);
394 sprintf(buf, "mixed WPA/WPA2 PSK (%s)", algo);
398 sprintf(buf, "Unknown");
404 static void wl_get_assoclist_cb(const char *ifname,
405 struct iwinfo_assoclist_entry *e)
407 wl_sta_info_t sta = { 0 };
409 if (!wl_iovar(ifname, "sta_info", e->mac, 6, &sta, sizeof(sta)) &&
412 e->inactive = sta.idle * 1000;
413 e->rx_packets = sta.rx_ucast_pkts;
414 e->tx_packets = sta.tx_pkts;
415 e->rx_rate.rate = sta.rx_rate;
416 e->tx_rate.rate = sta.tx_rate;
424 static int wl_get_assoclist(const char *ifname, char *buf, int *len)
427 int ap, infra, passive;
430 char devstr[IFNAMSIZ];
431 struct wl_maclist *macs;
432 struct wl_sta_rssi rssi;
433 struct iwinfo_assoclist_entry entry;
436 ap = infra = passive = 0;
438 wl_ioctl(ifname, WLC_GET_AP, &ap, sizeof(ap));
439 wl_ioctl(ifname, WLC_GET_INFRA, &infra, sizeof(infra));
440 wl_ioctl(ifname, WLC_GET_PASSIVE, &passive, sizeof(passive));
442 if (wl_get_noise(ifname, &noise))
445 if ((ap || infra || passive) && ((macs = wl_read_assoclist(ifname)) != NULL))
447 for (i = 0, j = 0; i < macs->count; i++, j += sizeof(struct iwinfo_assoclist_entry))
449 memset(&entry, 0, sizeof(entry));
450 memcpy(rssi.mac, &macs->ea[i], 6);
452 if (!wl_ioctl(ifname, WLC_GET_RSSI, &rssi, sizeof(struct wl_sta_rssi)))
453 entry.signal = (rssi.rssi - 0x100);
458 memcpy(entry.mac, &macs->ea[i], 6);
459 wl_get_assoclist_cb(ifname, &entry);
461 memcpy(&buf[j], &entry, sizeof(entry));
468 else if ((arp = fopen("/proc/net/arp", "r")) != NULL)
472 while (fgets(line, sizeof(line), arp) != NULL)
474 if (sscanf(line, "%*s 0x%*d 0x%*d %17s %*s %s", macstr, devstr) && !strcmp(devstr, ifname))
476 rssi.mac[0] = strtol(&macstr[0], NULL, 16);
477 rssi.mac[1] = strtol(&macstr[3], NULL, 16);
478 rssi.mac[2] = strtol(&macstr[6], NULL, 16);
479 rssi.mac[3] = strtol(&macstr[9], NULL, 16);
480 rssi.mac[4] = strtol(&macstr[12], NULL, 16);
481 rssi.mac[5] = strtol(&macstr[15], NULL, 16);
483 if (!wl_ioctl(ifname, WLC_GET_RSSI, &rssi, sizeof(struct wl_sta_rssi)))
484 entry.signal = (rssi.rssi - 0x100);
489 memcpy(entry.mac, rssi.mac, 6);
490 memcpy(&buf[j], &entry, sizeof(entry));
504 static int wl_get_txpwrlist(const char *ifname, char *buf, int *len)
506 struct iwinfo_txpwrlist_entry entry;
507 uint8_t dbm[11] = { 0, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24 };
508 uint8_t mw[11] = { 1, 3, 6, 10, 15, 25, 39, 63, 100, 158, 251 };
511 for (i = 0; i < 11; i++)
515 memcpy(&buf[i*sizeof(entry)], &entry, sizeof(entry));
518 *len = 11 * sizeof(entry);
522 static int wl_get_scanlist(const char *ifname, char *buf, int *len)
524 return wext_ops.scanlist(ifname, buf, len);
527 static int wl_get_freqlist(const char *ifname, char *buf, int *len)
529 return wext_ops.freqlist(ifname, buf, len);
532 static int wl_get_country(const char *ifname, char *buf)
534 char ccode[WLC_CNTRY_BUF_SZ];
536 if (!wl_ioctl(ifname, WLC_GET_COUNTRY, ccode, WLC_CNTRY_BUF_SZ))
539 if (!strcmp(ccode, "IL0"))
543 else if (!strcmp(ccode, "YU"))
547 memcpy(buf, ccode, 2);
555 static int wl_get_countrylist(const char *ifname, char *buf, int *len)
558 char cdata[WLC_IOCTL_MAXLEN];
559 struct iwinfo_country_entry *c = (struct iwinfo_country_entry *)buf;
560 wl_country_list_t *cl = (wl_country_list_t *)cdata;
562 cl->buflen = sizeof(cdata);
564 if (!wl_ioctl(ifname, WLC_GET_COUNTRY_LIST, cl, cl->buflen))
566 for (i = 0, count = 0; i < cl->count; i++, c++)
568 snprintf(c->ccode, sizeof(c->ccode), "%s", &cl->country_abbrev[i * WLC_CNTRY_BUF_SZ]);
569 c->iso3166 = c->ccode[0] * 256 + c->ccode[1];
572 if (!strcmp(c->ccode, "IL0"))
576 else if (!strcmp(c->ccode, "YU"))
580 *len = (i * sizeof(struct iwinfo_country_entry));
587 static int wl_get_hwmodelist(const char *ifname, int *buf)
590 uint i, band[WLC_BAND_ALL], bands;
592 if (!wl_ioctl(ifname, WLC_GET_PHYTYPE, &phytype, sizeof(phytype)) &&
593 !wl_ioctl(ifname, WLC_GET_BANDLIST, band, sizeof(band)))
599 *buf = IWINFO_80211_A;
602 *buf = IWINFO_80211_B;
604 case WLC_PHY_TYPE_AC:
605 *buf |= IWINFO_80211_AC;
606 case WLC_PHY_TYPE_HT:
608 *buf |= IWINFO_80211_N;
609 case WLC_PHY_TYPE_LP:
612 for (i = 1; i <= band[0]; i++)
616 if (bands & WLC_BAND_5G)
617 *buf |= IWINFO_80211_A;
618 if (bands & WLC_BAND_2G)
620 *buf |= IWINFO_80211_B;
621 *buf |= IWINFO_80211_G;
633 static int wl_get_htmodelist(const char *ifname, int *buf)
637 if (!wl_get_hwmodelist(ifname, &modes))
641 /* FIXME: determine real capabilities */
643 if (modes & IWINFO_80211_N)
644 *buf |= IWINFO_HTMODE_HT20 | IWINFO_HTMODE_HT40;
646 if (modes & IWINFO_80211_AC)
647 *buf |= IWINFO_HTMODE_VHT20 | IWINFO_HTMODE_VHT40 |
656 static int wl_get_mbssid_support(const char *ifname, int *buf)
658 wlc_rev_info_t revinfo;
660 /* Multi bssid support only works on corerev >= 9 */
661 if (!wl_ioctl(ifname, WLC_GET_REVINFO, &revinfo, sizeof(revinfo)))
663 if (revinfo.corerev >= 9)
673 static int wl_get_hardware_id(const char *ifname, char *buf)
675 wlc_rev_info_t revinfo;
676 struct iwinfo_hardware_id *ids = (struct iwinfo_hardware_id *)buf;
678 if (wl_ioctl(ifname, WLC_GET_REVINFO, &revinfo, sizeof(revinfo)))
681 ids->vendor_id = revinfo.vendorid;
682 ids->device_id = revinfo.deviceid;
683 ids->subsystem_vendor_id = revinfo.boardvendor;
684 ids->subsystem_device_id = revinfo.boardid;
689 static int wl_get_hardware_name(const char *ifname, char *buf)
691 struct iwinfo_hardware_id ids;
693 if (wl_get_hardware_id(ifname, (char *)&ids))
696 sprintf(buf, "Broadcom BCM%04X", ids.device_id);
701 static int wl_get_txpower_offset(const char *ifname, int *buf)
708 if ((p = popen("/usr/sbin/nvram get opo", "r")) != NULL)
710 if (fread(off, 1, sizeof(off), p))
711 *buf = strtoul(off, NULL, 16);
719 static int wl_get_frequency_offset(const char *ifname, int *buf)
726 const struct iwinfo_ops wl_ops = {
729 .channel = wl_get_channel,
730 .frequency = wl_get_frequency,
731 .frequency_offset = wl_get_frequency_offset,
732 .txpower = wl_get_txpower,
733 .txpower_offset = wl_get_txpower_offset,
734 .bitrate = wl_get_bitrate,
735 .signal = wl_get_signal,
736 .noise = wl_get_noise,
737 .quality = wl_get_quality,
738 .quality_max = wl_get_quality_max,
739 .mbssid_support = wl_get_mbssid_support,
740 .hwmodelist = wl_get_hwmodelist,
741 .htmodelist = wl_get_htmodelist,
744 .bssid = wl_get_bssid,
745 .country = wl_get_country,
746 .hardware_id = wl_get_hardware_id,
747 .hardware_name = wl_get_hardware_name,
748 .encryption = wl_get_encryption,
749 .phyname = wl_get_phyname,
750 .assoclist = wl_get_assoclist,
751 .txpwrlist = wl_get_txpwrlist,
752 .scanlist = wl_get_scanlist,
753 .freqlist = wl_get_freqlist,
754 .countrylist = wl_get_countrylist,