--- /dev/null
+/*
+ * iwinfo - Wireless Information Library - Broadcom wl.o Backend
+ *
+ * Copyright (C) 2009 Jo-Philipp Wich <xm@subsignal.org>
+ *
+ * The iwinfo library is free software: you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation.
+ *
+ * The iwinfo library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ * See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with the iwinfo library. If not, see http://www.gnu.org/licenses/.
+ *
+ * This code is based on the wlc.c utility published by OpenWrt.org .
+ */
+
+#include "iwinfo_wl.h"
+#include "iwinfo_wext.h"
+
+static int ioctl_socket = -1;
+
+static int wl_ioctl(const char *name, int cmd, void *buf, int len)
+{
+ struct ifreq ifr;
+ wl_ioctl_t ioc;
+
+ /* prepare socket */
+ if( ioctl_socket == -1 )
+ ioctl_socket = socket(AF_INET, SOCK_DGRAM, 0);
+
+ /* do it */
+ ioc.cmd = cmd;
+ ioc.buf = buf;
+ ioc.len = len;
+ strncpy(ifr.ifr_name, name, IFNAMSIZ);
+ ifr.ifr_data = (caddr_t) &ioc;
+
+ return ioctl(ioctl_socket, SIOCDEVPRIVATE, &ifr);
+}
+
+static struct wl_maclist * wl_read_assoclist(const char *ifname)
+{
+ struct wl_maclist *macs;
+ int maclen = 4 + WL_MAX_STA_COUNT * 6;
+
+ if( (macs = (struct wl_maclist *) malloc(maclen)) != NULL )
+ {
+ memset(macs, 0, maclen);
+ macs->count = WL_MAX_STA_COUNT;
+
+ if( !wl_ioctl(ifname, WLC_GET_ASSOCLIST, macs, maclen) )
+ return macs;
+
+ free(macs);
+ }
+
+ return NULL;
+}
+
+
+int wl_probe(const char *ifname)
+{
+ int magic;
+
+ if( !wl_ioctl(ifname, WLC_GET_MAGIC, &magic, sizeof(magic)) && (magic == WLC_IOCTL_MAGIC))
+ return 1;
+
+ return 0;
+}
+
+int wl_get_mode(const char *ifname, char *buf)
+{
+ int ret = -1;
+ int ap, infra, passive;
+
+ if( (ret = wl_ioctl(ifname, WLC_GET_AP, &ap, sizeof(ap))) )
+ return ret;
+
+ if( (ret = wl_ioctl(ifname, WLC_GET_INFRA, &infra, sizeof(infra))) )
+ return ret;
+
+ if( (ret = wl_ioctl(ifname, WLC_GET_PASSIVE, &passive, sizeof(passive))) )
+ return ret;
+
+ if( passive )
+ sprintf(buf, "Monitor");
+ else if( !infra )
+ sprintf(buf, "Ad-Hoc");
+ else if( ap )
+ sprintf(buf, "Master");
+ else
+ sprintf(buf, "Client");
+
+ return 0;
+}
+
+int wl_get_ssid(const char *ifname, char *buf)
+{
+ int ret = -1;
+ wlc_ssid_t ssid;
+
+ if( !(ret = wl_ioctl(ifname, WLC_GET_SSID, &ssid, sizeof(ssid))) )
+ memcpy(buf, ssid.ssid, ssid.ssid_len);
+
+ return ret;
+}
+
+int wl_get_bssid(const char *ifname, char *buf)
+{
+ int ret = -1;
+ char bssid[6];
+
+ if( !(ret = wl_ioctl(ifname, WLC_GET_BSSID, bssid, 6)) )
+ sprintf(buf, "%02X:%02X:%02X:%02X:%02X:%02X",
+ (uint8_t)bssid[0], (uint8_t)bssid[1], (uint8_t)bssid[2],
+ (uint8_t)bssid[3], (uint8_t)bssid[4], (uint8_t)bssid[5]
+ );
+
+ return ret;
+}
+
+int wl_get_channel(const char *ifname, int *buf)
+{
+ return wl_ioctl(ifname, WLC_GET_CHANNEL, buf, sizeof(buf));
+}
+
+int wl_get_frequency(const char *ifname, int *buf)
+{
+ return wext_get_frequency(ifname, buf);
+}
+
+int wl_get_txpower(const char *ifname, int *buf)
+{
+ return wext_get_txpower(ifname, buf);
+}
+
+int wl_get_bitrate(const char *ifname, int *buf)
+{
+ int ret = -1;
+ int rate = 0;
+
+ if( !(ret = wl_ioctl(ifname, WLC_GET_RATE, &rate, sizeof(rate))) && (rate > 0))
+ *buf = ((rate / 2) * 1000) + ((rate & 1) ? 500 : 0);
+
+ return ret;
+}
+
+int wl_get_signal(const char *ifname, int *buf)
+{
+ unsigned int ap, rssi, i, rssi_count;
+ int ioctl_req_version = 0x2000;
+ char tmp[WLC_IOCTL_MAXLEN];
+ struct wl_maclist *macs = NULL;
+ wl_sta_rssi_t starssi;
+
+ memset(tmp, 0, WLC_IOCTL_MAXLEN);
+ memcpy(tmp, &ioctl_req_version, sizeof(ioctl_req_version));
+
+ wl_ioctl(ifname, WLC_GET_BSS_INFO, tmp, WLC_IOCTL_MAXLEN);
+
+ if( !wl_ioctl(ifname, WLC_GET_AP, &ap, sizeof(ap)) && !ap )
+ {
+ *buf = tmp[WL_BSS_RSSI_OFFSET];
+ }
+ else
+ {
+ rssi = rssi_count = 0;
+
+ /* Calculate average rssi from conntected stations */
+ if( (macs = wl_read_assoclist(ifname)) != NULL )
+ {
+ for( i = 0; i < macs->count; i++ )
+ {
+ memcpy(starssi.mac, &macs->ea[i], 6);
+
+ if( !wl_ioctl(ifname, WLC_GET_RSSI, &starssi, 12) )
+ {
+ rssi -= starssi.rssi;
+ rssi_count++;
+ }
+ }
+
+ free(macs);
+ }
+
+ *buf = (rssi == 0 || rssi_count == 0) ? 1 : -(rssi / rssi_count);
+ }
+
+ return 0;
+}
+
+int wl_get_noise(const char *ifname, int *buf)
+{
+ unsigned int ap, noise;
+ int ioctl_req_version = 0x2000;
+ char tmp[WLC_IOCTL_MAXLEN];
+
+ memset(tmp, 0, WLC_IOCTL_MAXLEN);
+ memcpy(tmp, &ioctl_req_version, sizeof(ioctl_req_version));
+
+ wl_ioctl(ifname, WLC_GET_BSS_INFO, tmp, WLC_IOCTL_MAXLEN);
+
+ if ((wl_ioctl(ifname, WLC_GET_AP, &ap, sizeof(ap)) < 0) || ap)
+ {
+ if (wl_ioctl(ifname, WLC_GET_PHY_NOISE, &noise, sizeof(noise)) < 0)
+ noise = 0;
+ }
+ else
+ {
+ noise = tmp[WL_BSS_NOISE_OFFSET];
+ }
+
+ *buf = noise;
+
+ return 0;
+}
+
+int wl_get_quality(const char *ifname, int *buf)
+{
+ return wext_get_quality(ifname, buf);
+}
+
+int wl_get_quality_max(const char *ifname, int *buf)
+{
+ return wext_get_quality_max(ifname, buf);
+}
+
+int wl_get_encryption(const char *ifname, char *buf)
+{
+ uint32_t wsec, wauth, wpa;
+ struct iwinfo_crypto_entry *c = (struct iwinfo_crypto_entry *)buf;
+
+ if( wl_ioctl(ifname, WLC_GET_WPA_AUTH, &wpa, sizeof(uint32_t)) ||
+ wl_ioctl(ifname, WLC_GET_WSEC, &wsec, sizeof(uint32_t)) ||
+ wl_ioctl(ifname, WLC_GET_AUTH, &wauth, sizeof(uint32_t)) )
+ return -1;
+
+ switch(wsec)
+ {
+ case 2:
+ c->pair_ciphers |= IWINFO_CIPHER_TKIP;
+ break;
+
+ case 4:
+ c->pair_ciphers |= IWINFO_CIPHER_CCMP;
+ break;
+
+ case 6:
+ c->pair_ciphers |= IWINFO_CIPHER_TKIP;
+ c->pair_ciphers |= IWINFO_CIPHER_CCMP;
+ break;
+ }
+
+ switch(wpa)
+ {
+ case 0:
+ if( wsec && !wauth )
+ c->auth_algs |= IWINFO_AUTH_OPEN;
+
+ else if( wsec && wauth )
+ c->auth_algs |= IWINFO_AUTH_SHARED;
+
+ /* ToDo: evaluate WEP key lengths */
+ c->auth_ciphers = IWINFO_CIPHER_WEP40 | IWINFO_CIPHER_WEP104;
+ c->auth_suites |= IWINFO_KMGMT_NONE;
+ break;
+
+ case 2:
+ c->wpa_version = 1;
+ c->auth_suites |= IWINFO_KMGMT_8021x;
+ break;
+
+ case 4:
+ c->wpa_version = 1;
+ c->auth_suites |= IWINFO_KMGMT_PSK;
+ break;
+
+ case 32:
+ case 64:
+ c->wpa_version = 2;
+ c->auth_suites |= IWINFO_KMGMT_8021x;
+ break;
+
+ case 66:
+ c->wpa_version = 3;
+ c->auth_suites |= IWINFO_KMGMT_8021x;
+ break;
+
+ case 128:
+ c->wpa_version = 2;
+ c->auth_suites |= IWINFO_KMGMT_PSK;
+ break;
+
+ case 132:
+ c->wpa_version = 3;
+ c->auth_suites |= IWINFO_KMGMT_PSK;
+ break;
+
+ default:
+ break;
+ }
+
+ c->enabled = (c->wpa_version || c->auth_algs) ? 1 : 0;
+ c->group_ciphers = c->pair_ciphers;
+
+ return 0;
+}
+
+int wl_get_enctype(const char *ifname, char *buf)
+{
+ uint32_t wsec, wpa;
+ char algo[11];
+
+ if( wl_ioctl(ifname, WLC_GET_WPA_AUTH, &wpa, sizeof(uint32_t)) ||
+ wl_ioctl(ifname, WLC_GET_WSEC, &wsec, sizeof(uint32_t)) )
+ return -1;
+
+ switch(wsec)
+ {
+ case 2:
+ sprintf(algo, "TKIP");
+ break;
+
+ case 4:
+ sprintf(algo, "CCMP");
+ break;
+
+ case 6:
+ sprintf(algo, "TKIP, CCMP");
+ break;
+ }
+
+ switch(wpa)
+ {
+ case 0:
+ sprintf(buf, "%s", wsec ? "WEP" : "None");
+ break;
+
+ case 2:
+ sprintf(buf, "WPA 802.1X (%s)", algo);
+ break;
+
+ case 4:
+ sprintf(buf, "WPA PSK (%s)", algo);
+ break;
+
+ case 32:
+ sprintf(buf, "802.1X (%s)", algo);
+ break;
+
+ case 64:
+ sprintf(buf, "WPA2 802.1X (%s)", algo);
+ break;
+
+ case 66:
+ sprintf(buf, "mixed WPA/WPA2 802.1X (%s)", algo);
+ break;
+
+ case 128:
+ sprintf(buf, "WPA2 PSK (%s)", algo);
+ break;
+
+ case 132:
+ sprintf(buf, "mixed WPA/WPA2 PSK (%s)", algo);
+ break;
+
+ default:
+ sprintf(buf, "Unknown");
+ }
+
+ return 0;
+}
+
+int wl_get_assoclist(const char *ifname, char *buf, int *len)
+{
+ int i, j, noise;
+ int ap, infra, passive;
+ char line[128];
+ char macstr[18];
+ char devstr[IFNAMSIZ];
+ struct wl_maclist *macs;
+ struct wl_sta_rssi rssi;
+ struct iwinfo_assoclist_entry entry;
+ FILE *arp;
+
+ ap = infra = passive = 0;
+
+ wl_ioctl(ifname, WLC_GET_AP, &ap, sizeof(ap));
+ wl_ioctl(ifname, WLC_GET_INFRA, &infra, sizeof(infra));
+ wl_ioctl(ifname, WLC_GET_PASSIVE, &passive, sizeof(passive));
+
+ if( wl_get_noise(ifname, &noise) )
+ noise = 0;
+
+ if( (ap || infra || passive) && ((macs = wl_read_assoclist(ifname)) != NULL) )
+ {
+ for( i = 0, j = 0; i < macs->count; i++, j += sizeof(struct iwinfo_assoclist_entry) )
+ {
+ memcpy(rssi.mac, &macs->ea[i], 6);
+
+ if( !wl_ioctl(ifname, WLC_GET_RSSI, &rssi, sizeof(struct wl_sta_rssi)) )
+ entry.signal = (rssi.rssi - 0x100);
+ else
+ entry.signal = 0;
+
+ entry.noise = noise;
+ memcpy(entry.mac, &macs->ea[i], 6);
+ memcpy(&buf[j], &entry, sizeof(entry));
+ }
+
+ *len = j;
+ free(macs);
+ return 0;
+ }
+ else if( (arp = fopen("/proc/net/arp", "r")) != NULL )
+ {
+ j = 0;
+
+ while( fgets(line, sizeof(line), arp) != NULL )
+ {
+ if( sscanf(line, "%*s 0x%*d 0x%*d %17s %*s %s", macstr, devstr) && !strcmp(devstr, ifname) )
+ {
+ rssi.mac[0] = strtol(&macstr[0], NULL, 16);
+ rssi.mac[1] = strtol(&macstr[3], NULL, 16);
+ rssi.mac[2] = strtol(&macstr[6], NULL, 16);
+ rssi.mac[3] = strtol(&macstr[9], NULL, 16);
+ rssi.mac[4] = strtol(&macstr[12], NULL, 16);
+ rssi.mac[5] = strtol(&macstr[15], NULL, 16);
+
+ if( !wl_ioctl(ifname, WLC_GET_RSSI, &rssi, sizeof(struct wl_sta_rssi)) )
+ entry.signal = (rssi.rssi - 0x100);
+ else
+ entry.signal = 0;
+
+ entry.noise = noise;
+ memcpy(entry.mac, rssi.mac, 6);
+ memcpy(&buf[j], &entry, sizeof(entry));
+
+ j += sizeof(entry);
+ }
+ }
+
+ *len = j;
+ (void) fclose(arp);
+ return 0;
+ }
+
+ return -1;
+}
+
+int wl_get_txpwrlist(const char *ifname, char *buf, int *len)
+{
+ struct iwinfo_txpwrlist_entry entry;
+ uint8_t dbm[8] = { 0, 6, 8, 10, 12, 14, 16, 18 };
+ uint8_t mw[8] = { 1, 3, 6, 10, 15, 25, 39, 63 };
+ int i;
+
+ for( i = 0; i < 8; i++ )
+ {
+ entry.dbm = dbm[i];
+ entry.mw = mw[i];
+ memcpy(&buf[i*sizeof(entry)], &entry, sizeof(entry));
+ }
+
+ *len = 8 * sizeof(entry);
+ return 0;
+}
+
+int wl_get_scanlist(const char *ifname, char *buf, int *len)
+{
+ return wext_get_scanlist(ifname, buf, len);
+}
+
+int wl_get_freqlist(const char *ifname, char *buf, int *len)
+{
+ return wext_get_freqlist(ifname, buf, len);
+}
+
+int wl_get_mbssid_support(const char *ifname, int *buf)
+{
+ wlc_rev_info_t revinfo;
+
+ /* Multi bssid support only works on corerev >= 9 */
+ if( !wl_ioctl(ifname, WLC_GET_REVINFO, &revinfo, sizeof(revinfo)) )
+ {
+ if( revinfo.corerev >= 9 )
+ {
+ *buf = 1;
+ return 0;
+ }
+ }
+
+ return -1;
+}
+
projects / project / luci.git / blobdiff