+++ /dev/null
-/*
- * iwinfo - Wireless Information Library - NL80211 Backend
- *
- * Copyright (C) 2010 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/.
- *
- * The signal handling code is derived from the official madwifi tools,
- * wlanconfig.c in particular. The encryption property handling was
- * inspired by the hostapd madwifi driver.
- *
- * Parts of this code are derived from the Linux iw utility.
- */
-
-#include "iwinfo/nl80211.h"
-#include "iwinfo/wext.h"
-
-#define min(x, y) ((x) < (y)) ? (x) : (y)
-
-static struct nl80211_state *nls = NULL;
-
-static int nl80211_init(void)
-{
- int err, fd;
-
- if (!nls)
- {
- nls = malloc(sizeof(struct nl80211_state));
- if (!nls) {
- err = -ENOMEM;
- goto err;
- }
-
- nls->nl_sock = nl_socket_alloc();
- if (!nls->nl_sock) {
- err = -ENOMEM;
- goto err;
- }
-
- if( genl_connect(nls->nl_sock)) {
- err = -ENOLINK;
- goto err;
- }
-
- fd = nl_socket_get_fd(nls->nl_sock);
- if (fcntl(fd, F_SETFD, fcntl(fd, F_GETFD) | FD_CLOEXEC) < 0)
- {
- err = -EINVAL;
- goto err;
- }
-
- if( genl_ctrl_alloc_cache(nls->nl_sock, &nls->nl_cache)) {
- err = -ENOMEM;
- goto err;
- }
-
- nls->nl80211 = genl_ctrl_search_by_name(nls->nl_cache, "nl80211");
- if (!nls->nl80211)
- {
- err = -ENOENT;
- goto err;
- }
- }
-
- return 0;
-
-
-err:
- nl80211_close();
- return err;
-}
-
-static int nl80211_msg_error(struct sockaddr_nl *nla,
- struct nlmsgerr *err, void *arg)
-{
- int *ret = arg;
- *ret = err->error;
- return NL_STOP;
-}
-
-static int nl80211_msg_finish(struct nl_msg *msg, void *arg)
-{
- int *ret = arg;
- *ret = 0;
- return NL_SKIP;
-}
-
-static int nl80211_msg_ack(struct nl_msg *msg, void *arg)
-{
- int *ret = arg;
- *ret = 0;
- return NL_STOP;
-}
-
-static int nl80211_msg_response(struct nl_msg *msg, void *arg)
-{
- return NL_SKIP;
-}
-
-static void nl80211_free(struct nl80211_msg_conveyor *cv)
-{
- if (cv)
- {
- if (cv->cb)
- nl_cb_put(cv->cb);
-
- if (cv->msg)
- nlmsg_free(cv->msg);
-
- cv->cb = NULL;
- cv->msg = NULL;
- }
-}
-
-static struct nl80211_msg_conveyor * nl80211_msg(const char *ifname, int cmd, int flags)
-{
- static struct nl80211_msg_conveyor cv;
-
- int ifidx = -1, phyidx = -1;
- struct nl_msg *req = NULL;
- struct nl_cb *cb = NULL;
-
- if (nl80211_init() < 0)
- goto err;
-
- if (!strncmp(ifname, "phy", 3))
- phyidx = atoi(&ifname[3]);
- else if (!strncmp(ifname, "radio", 5))
- phyidx = atoi(&ifname[5]);
- else if (!strncmp(ifname, "mon.", 4))
- ifidx = if_nametoindex(&ifname[4]);
- else
- ifidx = if_nametoindex(ifname);
-
- if ((ifidx < 0) && (phyidx < 0))
- return NULL;
-
- req = nlmsg_alloc();
- if (!req)
- goto err;
-
- cb = nl_cb_alloc(NL_CB_DEFAULT);
- if (!cb)
- goto err;
-
- genlmsg_put(req, 0, 0, genl_family_get_id(nls->nl80211), 0,
- flags, cmd, 0);
-
- if (ifidx > -1)
- NLA_PUT_U32(req, NL80211_ATTR_IFINDEX, ifidx);
-
- if (phyidx > -1)
- NLA_PUT_U32(req, NL80211_ATTR_WIPHY, phyidx);
-
- cv.msg = req;
- cv.cb = cb;
-
- return &cv;
-
-err:
-nla_put_failure:
- if (cb)
- nl_cb_put(cb);
-
- if (req)
- nlmsg_free(req);
-
- return NULL;
-}
-
-static struct nl80211_msg_conveyor * nl80211_send(
- struct nl80211_msg_conveyor *cv,
- int (*cb_func)(struct nl_msg *, void *), void *cb_arg
-) {
- static struct nl80211_msg_conveyor rcv;
- int err = 1;
-
- if (cb_func)
- nl_cb_set(cv->cb, NL_CB_VALID, NL_CB_CUSTOM, cb_func, cb_arg);
- else
- nl_cb_set(cv->cb, NL_CB_VALID, NL_CB_CUSTOM, nl80211_msg_response, &rcv);
-
- if (nl_send_auto_complete(nls->nl_sock, cv->msg) < 0)
- goto err;
-
- nl_cb_err(cv->cb, NL_CB_CUSTOM, nl80211_msg_error, &err);
- nl_cb_set(cv->cb, NL_CB_FINISH, NL_CB_CUSTOM, nl80211_msg_finish, &err);
- nl_cb_set(cv->cb, NL_CB_ACK, NL_CB_CUSTOM, nl80211_msg_ack, &err);
-
- while (err > 0)
- nl_recvmsgs(nls->nl_sock, cv->cb);
-
- return &rcv;
-
-err:
- nl_cb_put(cv->cb);
- nlmsg_free(cv->msg);
-
- return NULL;
-}
-
-static struct nlattr ** nl80211_parse(struct nl_msg *msg)
-{
- struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
- static struct nlattr *attr[NL80211_ATTR_MAX + 1];
-
- nla_parse(attr, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
- genlmsg_attrlen(gnlh, 0), NULL);
-
- return attr;
-}
-
-static int nl80211_freq2channel(int freq)
-{
- if (freq == 2484)
- return 14;
-
- if (freq < 2484)
- return (freq - 2407) / 5;
-
- return (freq / 5) - 1000;
-}
-
-static char * nl80211_getval(const char *ifname, const char *buf, const char *key)
-{
- int i, len;
- char lkey[64] = { 0 };
- const char *ln = buf;
- static char lval[256] = { 0 };
-
- int matched_if = ifname ? 0 : 1;
-
-
- for( i = 0, len = strlen(buf); i < len; i++ )
- {
- if (!lkey[0] && (buf[i] == ' ' || buf[i] == '\t'))
- {
- ln++;
- }
- else if (!lkey[0] && (buf[i] == '='))
- {
- if ((&buf[i] - ln) > 0)
- memcpy(lkey, ln, min(sizeof(lkey) - 1, &buf[i] - ln));
- }
- else if (buf[i] == '\n')
- {
- if (lkey[0])
- {
- memcpy(lval, ln + strlen(lkey) + 1,
- min(sizeof(lval) - 1, &buf[i] - ln - strlen(lkey) - 1));
-
- if ((ifname != NULL) &&
- (!strcmp(lkey, "interface") || !strcmp(lkey, "bss")) )
- {
- matched_if = !strcmp(lval, ifname);
- }
- else if (matched_if && !strcmp(lkey, key))
- {
- return lval;
- }
- }
-
- ln = &buf[i+1];
- memset(lkey, 0, sizeof(lkey));
- memset(lval, 0, sizeof(lval));
- }
- }
-
- return NULL;
-}
-
-static int nl80211_ifname2phy_cb(struct nl_msg *msg, void *arg)
-{
- char *buf = arg;
- struct nlattr **attr = nl80211_parse(msg);
-
- if (attr[NL80211_ATTR_WIPHY_NAME])
- sprintf(buf, "%s", nla_data(attr[NL80211_ATTR_WIPHY_NAME]));
- else
- buf[0] = 0;
-
- return NL_SKIP;
-}
-
-static char * nl80211_ifname2phy(const char *ifname)
-{
- static char phy[32] = { 0 };
- struct nl80211_msg_conveyor *req;
-
- memset(phy, 0, sizeof(phy));
-
- req = nl80211_msg(ifname, NL80211_CMD_GET_WIPHY, 0);
- if (req)
- {
- nl80211_send(req, nl80211_ifname2phy_cb, phy);
- nl80211_free(req);
- }
-
- return phy[0] ? phy : NULL;
-}
-
-static char * nl80211_hostapd_info(const char *ifname)
-{
- char *phy;
- char path[32] = { 0 };
- static char buf[4096] = { 0 };
- FILE *conf;
-
- if ((phy = nl80211_ifname2phy(ifname)) != NULL)
- {
- snprintf(path, sizeof(path), "/var/run/hostapd-%s.conf", phy);
-
- if ((conf = fopen(path, "r")) != NULL)
- {
- fread(buf, sizeof(buf) - 1, 1, conf);
- fclose(conf);
-
- return buf;
- }
- }
-
- return NULL;
-}
-
-static inline int nl80211_wpactl_recv(int sock, char *buf, int blen)
-{
- fd_set rfds;
- struct timeval tv = { 2, 0 };
-
- FD_ZERO(&rfds);
- FD_SET(sock, &rfds);
-
- memset(buf, 0, blen);
-
-
- if (select(sock + 1, &rfds, NULL, NULL, &tv) < 0)
- return -1;
-
- if (!FD_ISSET(sock, &rfds))
- return -1;
-
- return recv(sock, buf, blen, 0);
-}
-
-static char * nl80211_wpactl_info(const char *ifname, const char *cmd,
- const char *event)
-{
- int numtry = 0;
- int sock = -1;
- char *rv = NULL;
- size_t remote_length, local_length;
- static char buffer[10240] = { 0 };
-
- struct sockaddr_un local = { 0 };
- struct sockaddr_un remote = { 0 };
-
-
- sock = socket(PF_UNIX, SOCK_DGRAM, 0);
- if (sock < 0)
- return NULL;
-
- remote.sun_family = AF_UNIX;
- remote_length = sizeof(remote.sun_family) + sprintf(remote.sun_path,
- "/var/run/wpa_supplicant-%s/%s", ifname, ifname);
-
- if (fcntl(sock, F_SETFD, fcntl(sock, F_GETFD) | FD_CLOEXEC) < 0)
- goto out;
-
- if (connect(sock, (struct sockaddr *) &remote, remote_length))
- goto out;
-
- local.sun_family = AF_UNIX;
- local_length = sizeof(local.sun_family) + sprintf(local.sun_path,
- "/var/run/iwinfo-%s-%d", ifname, getpid());
-
- if (bind(sock, (struct sockaddr *) &local, local_length))
- goto out;
-
-
- send(sock, "ATTACH", 6, 0);
-
- if (nl80211_wpactl_recv(sock, buffer, sizeof(buffer)) <= 0)
- goto out;
-
-
- send(sock, cmd, strlen(cmd), 0);
-
- while( numtry++ < 5 )
- {
- if (nl80211_wpactl_recv(sock, buffer, sizeof(buffer)) <= 0)
- {
- if (event)
- continue;
-
- break;
- }
-
- if ((!event && buffer[0] != '<') || strstr(buffer, event))
- break;
- }
-
- rv = buffer;
-
-out:
- close(sock);
-
- if (local.sun_family)
- unlink(local.sun_path);
-
- return rv;
-}
-
-static inline int nl80211_readint(const char *path)
-{
- int fd;
- int rv = -1;
- char buffer[16];
-
- if ((fd = open(path, O_RDONLY)) > -1)
- {
- if (read(fd, buffer, sizeof(buffer)) > 0)
- rv = atoi(buffer);
-
- close(fd);
- }
-
- return rv;
-}
-
-static char * nl80211_phy2ifname(const char *ifname)
-{
- int fd, ifidx = -1, cifidx = -1, phyidx = -1;
- char buffer[64];
- static char nif[IFNAMSIZ] = { 0 };
-
- DIR *d;
- struct dirent *e;
-
- if (!ifname)
- return NULL;
- else if (!strncmp(ifname, "phy", 3))
- phyidx = atoi(&ifname[3]);
- else if (!strncmp(ifname, "radio", 5))
- phyidx = atoi(&ifname[5]);
-
- memset(nif, 0, sizeof(nif));
-
- if (phyidx > -1)
- {
- if ((d = opendir("/sys/class/net")) != NULL)
- {
- while( (e = readdir(d)) != NULL )
- {
- snprintf(buffer, sizeof(buffer),
- "/sys/class/net/%s/phy80211/index", e->d_name);
-
- if (nl80211_readint(buffer) == phyidx)
- {
- snprintf(buffer, sizeof(buffer),
- "/sys/class/net/%s/ifindex", e->d_name);
-
- if( (cifidx = nl80211_readint(buffer)) >= 0 &&
- ((ifidx < 0) || (cifidx < ifidx)) )
- {
- ifidx = cifidx;
- strncpy(nif, e->d_name, sizeof(nif));
- }
- }
- }
-
- closedir(d);
- }
- }
-
- return nif[0] ? nif : NULL;
-}
-
-static char * nl80211_ifadd(const char *ifname)
-{
- int phyidx;
- char *rv = NULL;
- static char nif[IFNAMSIZ] = { 0 };
- struct nl80211_msg_conveyor *req, *res;
-
- req = nl80211_msg(ifname, NL80211_CMD_NEW_INTERFACE, 0);
- if (req)
- {
- snprintf(nif, sizeof(nif), "tmp.%s", ifname);
-
- NLA_PUT_STRING(req->msg, NL80211_ATTR_IFNAME, nif);
- NLA_PUT_U32(req->msg, NL80211_ATTR_IFTYPE, NL80211_IFTYPE_STATION);
-
- nl80211_send(req, NULL, NULL);
-
- rv = nif;
-
- nla_put_failure:
- nl80211_free(req);
- }
-
- return rv;
-}
-
-static void nl80211_ifdel(const char *ifname)
-{
- struct nl80211_msg_conveyor *req;
-
- req = nl80211_msg(ifname, NL80211_CMD_DEL_INTERFACE, 0);
- if (req)
- {
- NLA_PUT_STRING(req->msg, NL80211_ATTR_IFNAME, ifname);
-
- nl80211_send(req, NULL, NULL);
-
- nla_put_failure:
- nl80211_free(req);
- }
-}
-
-static void nl80211_hostapd_hup(const char *ifname)
-{
- int fd, pid = 0;
- char buf[32];
- char *phy = nl80211_ifname2phy(ifname);
-
- if (phy)
- {
- snprintf(buf, sizeof(buf), "/var/run/wifi-%s.pid", phy);
- if ((fd = open(buf, O_RDONLY)) > 0)
- {
- if (read(fd, buf, sizeof(buf)) > 0)
- pid = atoi(buf);
-
- close(fd);
- }
-
- if (pid > 0)
- kill(pid, 1);
- }
-}
-
-
-int nl80211_probe(const char *ifname)
-{
- return !!nl80211_ifname2phy(ifname);
-}
-
-void nl80211_close(void)
-{
- if (nls)
- {
- if (nls->nl_sock)
- nl_socket_free(nls->nl_sock);
-
- if (nls->nl_cache)
- nl_cache_free(nls->nl_cache);
-
- free(nls);
- nls = NULL;
- }
-}
-
-int nl80211_get_mode(const char *ifname, char *buf)
-{
- return wext_get_mode(ifname, buf);
-}
-
-int nl80211_get_ssid(const char *ifname, char *buf)
-{
- char *ssid;
-
- if (!wext_get_ssid(ifname, buf))
- {
- return 0;
- }
- else if( (ssid = nl80211_hostapd_info(ifname)) &&
- (ssid = nl80211_getval(ifname, ssid, "ssid")) )
- {
- memcpy(buf, ssid, strlen(ssid));
- return 0;
- }
-
- return -1;
-}
-
-int nl80211_get_bssid(const char *ifname, char *buf)
-{
- char *bssid;
- unsigned char mac[6];
-
- if (!wext_get_bssid(ifname, buf))
- {
- return 0;
- }
- else if((bssid = nl80211_hostapd_info(ifname)) &&
- (bssid = nl80211_getval(ifname, bssid, "bssid")))
- {
- mac[0] = strtol(&bssid[0], NULL, 16);
- mac[1] = strtol(&bssid[3], NULL, 16);
- mac[2] = strtol(&bssid[6], NULL, 16);
- mac[3] = strtol(&bssid[9], NULL, 16);
- mac[4] = strtol(&bssid[12], NULL, 16);
- mac[5] = strtol(&bssid[15], NULL, 16);
-
- sprintf(buf, "%02X:%02X:%02X:%02X:%02X:%02X",
- mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
-
- return 0;
- }
-
- return -1;
-}
-
-int nl80211_get_channel(const char *ifname, int *buf)
-{
- char *first;
-
- if (!wext_get_channel(ifname, buf))
- return 0;
-
- else if ((first = nl80211_phy2ifname(nl80211_ifname2phy(ifname))) != NULL)
- return wext_get_channel(first, buf);
-
- return -1;
-}
-
-int nl80211_get_frequency(const char *ifname, int *buf)
-{
- char *first;
-
- if (!wext_get_frequency(ifname, buf))
- return 0;
-
- else if ((first = nl80211_phy2ifname(nl80211_ifname2phy(ifname))) != NULL)
- return wext_get_frequency(first, buf);
-
- return -1;
-}
-
-int nl80211_get_txpower(const char *ifname, int *buf)
-{
- return wext_get_txpower(ifname, buf);
-}
-
-
-static int nl80211_fill_signal_cb(struct nl_msg *msg, void *arg)
-{
- int8_t dbm;
- int16_t mbit;
- struct nl80211_rssi_rate *rr = arg;
- struct nlattr **attr = nl80211_parse(msg);
- struct nlattr *sinfo[NL80211_STA_INFO_MAX + 1];
- struct nlattr *rinfo[NL80211_RATE_INFO_MAX + 1];
-
- static struct nla_policy stats_policy[NL80211_STA_INFO_MAX + 1] = {
- [NL80211_STA_INFO_INACTIVE_TIME] = { .type = NLA_U32 },
- [NL80211_STA_INFO_RX_BYTES] = { .type = NLA_U32 },
- [NL80211_STA_INFO_TX_BYTES] = { .type = NLA_U32 },
- [NL80211_STA_INFO_RX_PACKETS] = { .type = NLA_U32 },
- [NL80211_STA_INFO_TX_PACKETS] = { .type = NLA_U32 },
- [NL80211_STA_INFO_SIGNAL] = { .type = NLA_U8 },
- [NL80211_STA_INFO_TX_BITRATE] = { .type = NLA_NESTED },
- [NL80211_STA_INFO_LLID] = { .type = NLA_U16 },
- [NL80211_STA_INFO_PLID] = { .type = NLA_U16 },
- [NL80211_STA_INFO_PLINK_STATE] = { .type = NLA_U8 },
- };
-
- static struct nla_policy rate_policy[NL80211_RATE_INFO_MAX + 1] = {
- [NL80211_RATE_INFO_BITRATE] = { .type = NLA_U16 },
- [NL80211_RATE_INFO_MCS] = { .type = NLA_U8 },
- [NL80211_RATE_INFO_40_MHZ_WIDTH] = { .type = NLA_FLAG },
- [NL80211_RATE_INFO_SHORT_GI] = { .type = NLA_FLAG },
- };
-
- if (attr[NL80211_ATTR_STA_INFO])
- {
- if( !nla_parse_nested(sinfo, NL80211_STA_INFO_MAX,
- attr[NL80211_ATTR_STA_INFO], stats_policy) )
- {
- if (sinfo[NL80211_STA_INFO_SIGNAL])
- {
- dbm = nla_get_u8(sinfo[NL80211_STA_INFO_SIGNAL]);
- rr->rssi = rr->rssi ? (int8_t)((rr->rssi + dbm) / 2) : dbm;
- }
-
- if (sinfo[NL80211_STA_INFO_TX_BITRATE])
- {
- if( !nla_parse_nested(rinfo, NL80211_RATE_INFO_MAX,
- sinfo[NL80211_STA_INFO_TX_BITRATE], rate_policy) )
- {
- if (rinfo[NL80211_RATE_INFO_BITRATE])
- {
- mbit = nla_get_u16(rinfo[NL80211_RATE_INFO_BITRATE]);
- rr->rate = rr->rate
- ? (int16_t)((rr->rate + mbit) / 2) : mbit;
- }
- }
- }
- }
- }
-
- return NL_SKIP;
-}
-
-static void nl80211_fill_signal(const char *ifname, struct nl80211_rssi_rate *r)
-{
- DIR *d;
- struct dirent *de;
- struct nl80211_msg_conveyor *req;
-
- r->rssi = 0;
- r->rate = 0;
-
- if ((d = opendir("/sys/class/net")) != NULL)
- {
- while ((de = readdir(d)) != NULL)
- {
- if (!strncmp(de->d_name, ifname, strlen(ifname)) &&
- (!de->d_name[strlen(ifname)] ||
- !strncmp(&de->d_name[strlen(ifname)], ".sta", 4)))
- {
- req = nl80211_msg(de->d_name, NL80211_CMD_GET_STATION,
- NLM_F_DUMP);
-
- if (req)
- {
- nl80211_send(req, nl80211_fill_signal_cb, r);
- nl80211_free(req);
- }
- }
- }
-
- closedir(d);
- }
-}
-
-int nl80211_get_bitrate(const char *ifname, int *buf)
-{
- struct nl80211_rssi_rate rr;
-
- if (!wext_get_bitrate(ifname, buf))
- return 0;
-
- nl80211_fill_signal(ifname, &rr);
-
- if (rr.rate)
- {
- *buf = (rr.rate * 100);
- return 0;
- }
-
- return -1;
-}
-
-int nl80211_get_signal(const char *ifname, int *buf)
-{
- struct nl80211_rssi_rate rr;
-
- if (!wext_get_signal(ifname, buf))
- return 0;
-
- nl80211_fill_signal(ifname, &rr);
-
- if (rr.rssi)
- {
- *buf = rr.rssi;
- return 0;
- }
-
- return -1;
-}
-
-static int nl80211_get_noise_cb(struct nl_msg *msg, void *arg)
-{
- int8_t *noise = arg;
- struct nlattr **tb = nl80211_parse(msg);
- struct nlattr *si[NL80211_SURVEY_INFO_MAX + 1];
-
- static struct nla_policy sp[NL80211_SURVEY_INFO_MAX + 1] = {
- [NL80211_SURVEY_INFO_FREQUENCY] = { .type = NLA_U32 },
- [NL80211_SURVEY_INFO_NOISE] = { .type = NLA_U8 },
- };
-
- if (!tb[NL80211_ATTR_SURVEY_INFO])
- return NL_SKIP;
-
- if (nla_parse_nested(si, NL80211_SURVEY_INFO_MAX,
- tb[NL80211_ATTR_SURVEY_INFO], sp))
- return NL_SKIP;
-
- if (!si[NL80211_SURVEY_INFO_NOISE])
- return NL_SKIP;
-
- if (!*noise || si[NL80211_SURVEY_INFO_IN_USE])
- *noise = (int8_t)nla_get_u8(si[NL80211_SURVEY_INFO_NOISE]);
-
- return NL_SKIP;
-}
-
-
-int nl80211_get_noise(const char *ifname, int *buf)
-{
- int8_t noise;
- struct nl80211_msg_conveyor *req;
-
- req = nl80211_msg(ifname, NL80211_CMD_GET_SURVEY, NLM_F_DUMP);
- if (req)
- {
- noise = 0;
-
- nl80211_send(req, nl80211_get_noise_cb, &noise);
- nl80211_free(req);
-
- if (noise)
- {
- *buf = noise;
- return 0;
- }
- }
-
- return -1;
-}
-
-int nl80211_get_quality(const char *ifname, int *buf)
-{
- int signal;
-
- if (wext_get_quality(ifname, buf))
- {
- *buf = 0;
-
- if (!nl80211_get_signal(ifname, &signal))
- {
- /* A positive signal level is usually just a quality
- * value, pass through as-is */
- if (signal >= 0)
- {
- *buf = signal;
- }
-
- /* The cfg80211 wext compat layer assumes a signal range
- * of -110 dBm to -40 dBm, the quality value is derived
- * by adding 110 to the signal level */
- else
- {
- if (signal < -110)
- signal = -110;
- else if (signal > -40)
- signal = -40;
-
- *buf = (signal + 110);
- }
- }
- }
-
- return 0;
-}
-
-int nl80211_get_quality_max(const char *ifname, int *buf)
-{
- if (wext_get_quality_max(ifname, buf))
- /* The cfg80211 wext compat layer assumes a maximum
- * quality of 70 */
- *buf = 70;
-
- return 0;
-}
-
-int nl80211_get_encryption(const char *ifname, char *buf)
-{
- int i;
- char k[9];
- char *val, *res;
- struct iwinfo_crypto_entry *c = (struct iwinfo_crypto_entry *)buf;
-
- /* WPA supplicant */
- if( (res = nl80211_wpactl_info(ifname, "STATUS", NULL)) &&
- (val = nl80211_getval(NULL, res, "pairwise_cipher")) )
- {
- /* WEP */
- if (strstr(val, "WEP"))
- {
- if (strstr(val, "WEP-40"))
- c->pair_ciphers |= IWINFO_CIPHER_WEP40;
-
- else if (strstr(val, "WEP-104"))
- c->pair_ciphers |= IWINFO_CIPHER_WEP104;
-
- c->enabled = 1;
- c->group_ciphers = c->pair_ciphers;
-
- c->auth_suites |= IWINFO_KMGMT_NONE;
- c->auth_algs |= IWINFO_AUTH_OPEN; /* XXX: assumption */
- }
-
- /* WPA */
- else
- {
- if (strstr(val, "TKIP"))
- c->pair_ciphers |= IWINFO_CIPHER_TKIP;
-
- else if (strstr(val, "CCMP"))
- c->pair_ciphers |= IWINFO_CIPHER_CCMP;
-
- else if (strstr(val, "NONE"))
- c->pair_ciphers |= IWINFO_CIPHER_NONE;
-
- else if (strstr(val, "WEP-40"))
- c->pair_ciphers |= IWINFO_CIPHER_WEP40;
-
- else if (strstr(val, "WEP-104"))
- c->pair_ciphers |= IWINFO_CIPHER_WEP104;
-
-
- if ((val = nl80211_getval(NULL, res, "group_cipher")))
- {
- if (strstr(val, "TKIP"))
- c->group_ciphers |= IWINFO_CIPHER_TKIP;
-
- else if (strstr(val, "CCMP"))
- c->group_ciphers |= IWINFO_CIPHER_CCMP;
-
- else if (strstr(val, "NONE"))
- c->group_ciphers |= IWINFO_CIPHER_NONE;
-
- else if (strstr(val, "WEP-40"))
- c->group_ciphers |= IWINFO_CIPHER_WEP40;
-
- else if (strstr(val, "WEP-104"))
- c->group_ciphers |= IWINFO_CIPHER_WEP104;
- }
-
-
- if ((val = nl80211_getval(NULL, res, "key_mgmt")))
- {
- if (strstr(val, "WPA2"))
- c->wpa_version = 2;
-
- else if (strstr(val, "WPA"))
- c->wpa_version = 1;
-
-
- if (strstr(val, "PSK"))
- c->auth_suites |= IWINFO_KMGMT_PSK;
-
- else if (strstr(val, "EAP") || strstr(val, "802.1X"))
- c->auth_suites |= IWINFO_KMGMT_8021x;
-
- else if (strstr(val, "NONE"))
- c->auth_suites |= IWINFO_KMGMT_NONE;
- }
-
- c->enabled = (c->wpa_version && c->auth_suites) ? 1 : 0;
- }
-
- return 0;
- }
-
- /* Hostapd */
- else if ((res = nl80211_hostapd_info(ifname)))
- {
- if ((val = nl80211_getval(ifname, res, "wpa")) != NULL)
- c->wpa_version = atoi(val);
-
- val = nl80211_getval(ifname, res, "wpa_key_mgmt");
-
- if (!val || strstr(val, "PSK"))
- c->auth_suites |= IWINFO_KMGMT_PSK;
-
- if (val && strstr(val, "EAP"))
- c->auth_suites |= IWINFO_KMGMT_8021x;
-
- if (val && strstr(val, "NONE"))
- c->auth_suites |= IWINFO_KMGMT_NONE;
-
- if ((val = nl80211_getval(ifname, res, "wpa_pairwise")) != NULL)
- {
- if (strstr(val, "TKIP"))
- c->pair_ciphers |= IWINFO_CIPHER_TKIP;
-
- if (strstr(val, "CCMP"))
- c->pair_ciphers |= IWINFO_CIPHER_CCMP;
-
- if (strstr(val, "NONE"))
- c->pair_ciphers |= IWINFO_CIPHER_NONE;
- }
-
- if ((val = nl80211_getval(ifname, res, "auth_algs")) != NULL)
- {
- switch(atoi(val)) {
- case 1:
- c->auth_algs |= IWINFO_AUTH_OPEN;
- break;
-
- case 2:
- c->auth_algs |= IWINFO_AUTH_SHARED;
- break;
-
- case 3:
- c->auth_algs |= IWINFO_AUTH_OPEN;
- c->auth_algs |= IWINFO_AUTH_SHARED;
- break;
-
- default:
- break;
- }
-
- for( i = 0; i < 4; i++ )
- {
- snprintf(k, sizeof(k), "wep_key%d", i);
-
- if ((val = nl80211_getval(ifname, res, k)))
- {
- if ((strlen(val) == 5) || (strlen(val) == 10))
- c->pair_ciphers |= IWINFO_CIPHER_WEP40;
-
- else if ((strlen(val) == 13) || (strlen(val) == 26))
- c->pair_ciphers |= IWINFO_CIPHER_WEP104;
- }
- }
- }
-
- c->group_ciphers = c->pair_ciphers;
- c->enabled = (c->wpa_version || c->pair_ciphers) ? 1 : 0;
-
- return 0;
- }
-
- return -1;
-}
-
-
-static int nl80211_get_assoclist_cb(struct nl_msg *msg, void *arg)
-{
- struct nl80211_array_buf *arr = arg;
- struct iwinfo_assoclist_entry *e = arr->buf;
- struct nlattr **attr = nl80211_parse(msg);
- struct nlattr *sinfo[NL80211_STA_INFO_MAX + 1];
-
- static struct nla_policy stats_policy[NL80211_STA_INFO_MAX + 1] = {
- [NL80211_STA_INFO_INACTIVE_TIME] = { .type = NLA_U32 },
- [NL80211_STA_INFO_RX_BYTES] = { .type = NLA_U32 },
- [NL80211_STA_INFO_TX_BYTES] = { .type = NLA_U32 },
- [NL80211_STA_INFO_RX_PACKETS] = { .type = NLA_U32 },
- [NL80211_STA_INFO_TX_PACKETS] = { .type = NLA_U32 },
- [NL80211_STA_INFO_SIGNAL] = { .type = NLA_U8 },
- [NL80211_STA_INFO_TX_BITRATE] = { .type = NLA_NESTED },
- [NL80211_STA_INFO_LLID] = { .type = NLA_U16 },
- [NL80211_STA_INFO_PLID] = { .type = NLA_U16 },
- [NL80211_STA_INFO_PLINK_STATE] = { .type = NLA_U8 },
- };
-
- /* advance to end of array */
- e += arr->count;
-
- if (attr[NL80211_ATTR_MAC])
- memcpy(e->mac, nla_data(attr[NL80211_ATTR_MAC]), 6);
-
- if (attr[NL80211_ATTR_STA_INFO])
- {
- if (!nla_parse_nested(sinfo, NL80211_STA_INFO_MAX,
- attr[NL80211_ATTR_STA_INFO], stats_policy))
- {
- if (sinfo[NL80211_STA_INFO_SIGNAL])
- e->signal = nla_get_u8(sinfo[NL80211_STA_INFO_SIGNAL]);
- }
- }
-
- e->noise = 0; /* filled in by caller */
- arr->count++;
-
- return NL_SKIP;
-}
-
-int nl80211_get_assoclist(const char *ifname, char *buf, int *len)
-{
- DIR *d;
- int i, noise = 0;
- struct dirent *de;
- struct nl80211_msg_conveyor *req;
- struct nl80211_array_buf arr = { .buf = buf, .count = 0 };
- struct iwinfo_assoclist_entry *e;
-
- if ((d = opendir("/sys/class/net")) != NULL)
- {
- while ((de = readdir(d)) != NULL)
- {
- if (!strncmp(de->d_name, ifname, strlen(ifname)) &&
- (!de->d_name[strlen(ifname)] ||
- !strncmp(&de->d_name[strlen(ifname)], ".sta", 4)))
- {
- req = nl80211_msg(de->d_name, NL80211_CMD_GET_STATION,
- NLM_F_DUMP);
-
- if (req)
- {
- nl80211_send(req, nl80211_get_assoclist_cb, &arr);
- nl80211_free(req);
- }
-
- break;
- }
- }
-
- closedir(d);
-
- if (!nl80211_get_noise(ifname, &noise))
- for (i = 0, e = arr.buf; i < arr.count; i++, e++)
- e->noise = noise;
-
- *len = (arr.count * sizeof(struct iwinfo_assoclist_entry));
- return 0;
- }
-
- return -1;
-}
-
-static int nl80211_get_txpwrlist_cb(struct nl_msg *msg, void *arg)
-{
- int *dbm_max = arg;
- int ch_cur, ch_cmp, bands_remain, freqs_remain;
-
- struct nlattr **attr = nl80211_parse(msg);
- struct nlattr *bands[NL80211_BAND_ATTR_MAX + 1];
- struct nlattr *freqs[NL80211_FREQUENCY_ATTR_MAX + 1];
- struct nlattr *band, *freq;
-
- static struct nla_policy freq_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = {
- [NL80211_FREQUENCY_ATTR_FREQ] = { .type = NLA_U32 },
- [NL80211_FREQUENCY_ATTR_DISABLED] = { .type = NLA_FLAG },
- [NL80211_FREQUENCY_ATTR_PASSIVE_SCAN] = { .type = NLA_FLAG },
- [NL80211_FREQUENCY_ATTR_NO_IBSS] = { .type = NLA_FLAG },
- [NL80211_FREQUENCY_ATTR_RADAR] = { .type = NLA_FLAG },
- [NL80211_FREQUENCY_ATTR_MAX_TX_POWER] = { .type = NLA_U32 },
- };
-
- ch_cur = *dbm_max; /* value int* is initialized with channel by caller */
- *dbm_max = -1;
-
- nla_for_each_nested(band, attr[NL80211_ATTR_WIPHY_BANDS], bands_remain)
- {
- nla_parse(bands, NL80211_BAND_ATTR_MAX, nla_data(band),
- nla_len(band), NULL);
-
- nla_for_each_nested(freq,
- bands[NL80211_BAND_ATTR_FREQS], freqs_remain)
- {
- nla_parse(freqs, NL80211_FREQUENCY_ATTR_MAX,
- nla_data(freq), nla_len(freq), freq_policy);
-
- ch_cmp = nl80211_freq2channel(
- nla_get_u32(freqs[NL80211_FREQUENCY_ATTR_FREQ]));
-
- if( (!ch_cur || (ch_cmp == ch_cur)) &&
- freqs[NL80211_FREQUENCY_ATTR_MAX_TX_POWER] )
- {
- *dbm_max = (int)(0.01 * nla_get_u32(
- freqs[NL80211_FREQUENCY_ATTR_MAX_TX_POWER]));
-
- break;
- }
- }
- }
-
- return NL_SKIP;
-}
-
-int nl80211_get_txpwrlist(const char *ifname, char *buf, int *len)
-{
- int ch_cur;
- int dbm_max = -1, dbm_cur, dbm_cnt;
- struct nl80211_msg_conveyor *req;
- struct iwinfo_txpwrlist_entry entry;
-
- if (nl80211_get_channel(ifname, &ch_cur))
- ch_cur = 0;
-
- req = nl80211_msg(ifname, NL80211_CMD_GET_WIPHY, 0);
- if (req)
- {
- /* initialize the value pointer with channel for callback */
- dbm_max = ch_cur;
-
- nl80211_send(req, nl80211_get_txpwrlist_cb, &dbm_max);
- nl80211_free(req);
- }
-
- if (dbm_max > -1)
- {
- for (dbm_cur = 0, dbm_cnt = 0;
- dbm_cur < dbm_max;
- dbm_cur++, dbm_cnt++)
- {
- entry.dbm = dbm_cur;
- entry.mw = iwinfo_dbm2mw(dbm_cur);
-
- memcpy(&buf[dbm_cnt * sizeof(entry)], &entry, sizeof(entry));
- }
-
- entry.dbm = dbm_max;
- entry.mw = iwinfo_dbm2mw(dbm_max);
-
- memcpy(&buf[dbm_cnt * sizeof(entry)], &entry, sizeof(entry));
- dbm_cnt++;
-
- *len = dbm_cnt * sizeof(entry);
- return 0;
- }
-
- return -1;
-}
-
-static void nl80211_get_scancrypto(const char *spec,
- struct iwinfo_crypto_entry *c)
-{
- if (strstr(spec, "WPA") || strstr(spec, "WEP"))
- {
- c->enabled = 1;
-
- if (strstr(spec, "WPA2-") && strstr(spec, "WPA-"))
- c->wpa_version = 3;
-
- else if (strstr(spec, "WPA2"))
- c->wpa_version = 2;
-
- else if (strstr(spec, "WPA"))
- c->wpa_version = 1;
-
- else if (strstr(spec, "WEP"))
- c->auth_algs = IWINFO_AUTH_OPEN | IWINFO_AUTH_SHARED;
-
-
- if (strstr(spec, "PSK"))
- c->auth_suites |= IWINFO_KMGMT_PSK;
-
- if (strstr(spec, "802.1X") || strstr(spec, "EAP"))
- c->auth_suites |= IWINFO_KMGMT_8021x;
-
- if (strstr(spec, "WPA-NONE"))
- c->auth_suites |= IWINFO_KMGMT_NONE;
-
-
- if (strstr(spec, "TKIP"))
- c->pair_ciphers |= IWINFO_CIPHER_TKIP;
-
- if (strstr(spec, "CCMP"))
- c->pair_ciphers |= IWINFO_CIPHER_CCMP;
-
- if (strstr(spec, "WEP-40"))
- c->pair_ciphers |= IWINFO_CIPHER_WEP40;
-
- if (strstr(spec, "WEP-104"))
- c->pair_ciphers |= IWINFO_CIPHER_WEP104;
-
- c->group_ciphers = c->pair_ciphers;
- }
- else
- {
- c->enabled = 0;
- }
-}
-
-int nl80211_get_scanlist(const char *ifname, char *buf, int *len)
-{
- int freq, rssi, qmax, count;
- char *res;
- char ssid[128] = { 0 };
- char bssid[18] = { 0 };
- char cipher[256] = { 0 };
-
- /* Got a radioX pseudo interface, find some interface on it or create one */
- if (!strncmp(ifname, "radio", 5))
- {
- /* Reuse existing interface */
- if ((res = nl80211_phy2ifname(ifname)) != NULL)
- {
- return nl80211_get_scanlist(res, buf, len);
- }
-
- /* Need to spawn a temporary iface for scanning */
- else if ((res = nl80211_ifadd(ifname)) != NULL)
- {
- count = nl80211_get_scanlist(res, buf, len);
- nl80211_ifdel(res);
- return count;
- }
- }
-
- struct iwinfo_scanlist_entry *e = (struct iwinfo_scanlist_entry *)buf;
-
- /* WPA supplicant */
- if ((res = nl80211_wpactl_info(ifname, "SCAN", "CTRL-EVENT-SCAN-RESULTS")))
- {
- if ((res = nl80211_wpactl_info(ifname, "SCAN_RESULTS", NULL)))
- {
- nl80211_get_quality_max(ifname, &qmax);
-
- /* skip header line */
- while( *res++ != '\n' );
-
- count = 0;
-
- while( sscanf(res, "%17s %d %d %255s%*[ \t]%127[^\n]\n",
- bssid, &freq, &rssi, cipher, ssid) > 0 )
- {
- /* BSSID */
- e->mac[0] = strtol(&bssid[0], NULL, 16);
- e->mac[1] = strtol(&bssid[3], NULL, 16);
- e->mac[2] = strtol(&bssid[6], NULL, 16);
- e->mac[3] = strtol(&bssid[9], NULL, 16);
- e->mac[4] = strtol(&bssid[12], NULL, 16);
- e->mac[5] = strtol(&bssid[15], NULL, 16);
-
- /* SSID */
- memcpy(e->ssid, ssid,
- min(strlen(ssid), sizeof(e->ssid) - 1));
-
- /* Mode (assume master) */
- sprintf((char *)e->mode, "Master");
-
- /* Channel */
- e->channel = nl80211_freq2channel(freq);
-
- /* Signal */
- e->signal = rssi;
-
- /* Quality */
- if (rssi < 0)
- {
- /* The cfg80211 wext compat layer assumes a signal range
- * of -110 dBm to -40 dBm, the quality value is derived
- * by adding 110 to the signal level */
- if (rssi < -110)
- rssi = -110;
- else if (rssi > -40)
- rssi = -40;
-
- e->quality = (rssi + 110);
- }
- else
- {
- e->quality = rssi;
- }
-
- /* Max. Quality */
- e->quality_max = qmax;
-
- /* Crypto */
- nl80211_get_scancrypto(cipher, &e->crypto);
-
- /* advance to next line */
- while( *res && *res++ != '\n' );
-
- count++;
- e++;
-
- memset(ssid, 0, sizeof(ssid));
- memset(bssid, 0, sizeof(bssid));
- memset(cipher, 0, sizeof(cipher));
- }
-
- *len = count * sizeof(struct iwinfo_scanlist_entry);
- return 0;
- }
- }
-
- /* AP scan */
- else
- {
- /* Got a temp interface, don't create yet another one */
- if (!strncmp(ifname, "tmp.", 4))
- {
- if (!iwinfo_ifup(ifname))
- return -1;
-
- wext_get_scanlist(ifname, buf, len);
- iwinfo_ifdown(ifname);
- return 0;
- }
-
- /* Spawn a new scan interface */
- else
- {
- if (!(res = nl80211_ifadd(ifname)))
- goto out;
-
- if (!iwinfo_ifmac(res))
- goto out;
-
- /* if we can take the new interface up, the driver supports an
- * additional interface and there's no need to tear down the ap */
- if (iwinfo_ifup(res))
- {
- wext_get_scanlist(res, buf, len);
- iwinfo_ifdown(res);
- }
-
- /* driver cannot create secondary interface, take down ap
- * during scan */
- else if (iwinfo_ifdown(ifname) && iwinfo_ifup(res))
- {
- wext_get_scanlist(res, buf, len);
- iwinfo_ifdown(res);
- iwinfo_ifup(ifname);
- nl80211_hostapd_hup(ifname);
- }
-
- out:
- nl80211_ifdel(res);
- return 0;
- }
- }
-
- return -1;
-}
-
-static int nl80211_get_freqlist_cb(struct nl_msg *msg, void *arg)
-{
- int bands_remain, freqs_remain;
-
- struct nl80211_array_buf *arr = arg;
- struct iwinfo_freqlist_entry *e = arr->buf;
-
- struct nlattr **attr = nl80211_parse(msg);
- struct nlattr *bands[NL80211_BAND_ATTR_MAX + 1];
- struct nlattr *freqs[NL80211_FREQUENCY_ATTR_MAX + 1];
- struct nlattr *band, *freq;
-
- static struct nla_policy freq_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = {
- [NL80211_FREQUENCY_ATTR_FREQ] = { .type = NLA_U32 },
- [NL80211_FREQUENCY_ATTR_DISABLED] = { .type = NLA_FLAG },
- [NL80211_FREQUENCY_ATTR_PASSIVE_SCAN] = { .type = NLA_FLAG },
- [NL80211_FREQUENCY_ATTR_NO_IBSS] = { .type = NLA_FLAG },
- [NL80211_FREQUENCY_ATTR_RADAR] = { .type = NLA_FLAG },
- [NL80211_FREQUENCY_ATTR_MAX_TX_POWER] = { .type = NLA_U32 },
- };
-
- nla_for_each_nested(band, attr[NL80211_ATTR_WIPHY_BANDS], bands_remain)
- {
- nla_parse(bands, NL80211_BAND_ATTR_MAX, nla_data(band),
- nla_len(band), NULL);
-
- nla_for_each_nested(freq,
- bands[NL80211_BAND_ATTR_FREQS], freqs_remain)
- {
- nla_parse(freqs, NL80211_FREQUENCY_ATTR_MAX,
- nla_data(freq), nla_len(freq), NULL);
-
- if( !freqs[NL80211_FREQUENCY_ATTR_FREQ] ||
- freqs[NL80211_FREQUENCY_ATTR_DISABLED] )
- continue;
-
- e->mhz = nla_get_u32(freqs[NL80211_FREQUENCY_ATTR_FREQ]);
- e->channel = nl80211_freq2channel(e->mhz);
-
- e->restricted = (
- freqs[NL80211_FREQUENCY_ATTR_PASSIVE_SCAN] ||
- freqs[NL80211_FREQUENCY_ATTR_NO_IBSS] ||
- freqs[NL80211_FREQUENCY_ATTR_RADAR]
- ) ? 1 : 0;
-
- e++;
- arr->count++;
- }
- }
-
- return NL_SKIP;
-}
-
-int nl80211_get_freqlist(const char *ifname, char *buf, int *len)
-{
- struct nl80211_msg_conveyor *req;
- struct nl80211_array_buf arr = { .buf = buf, .count = 0 };
-
- req = nl80211_msg(ifname, NL80211_CMD_GET_WIPHY, 0);
- if (req)
- {
- nl80211_send(req, nl80211_get_freqlist_cb, &arr);
- nl80211_free(req);
- }
-
- if (arr.count > 0)
- {
- *len = arr.count * sizeof(struct iwinfo_freqlist_entry);
- return 0;
- }
-
- return -1;
-}
-
-static int nl80211_get_country_cb(struct nl_msg *msg, void *arg)
-{
- char *buf = arg;
- struct nlattr **attr = nl80211_parse(msg);
-
- if (attr[NL80211_ATTR_REG_ALPHA2])
- memcpy(buf, nla_data(attr[NL80211_ATTR_REG_ALPHA2]), 2);
- else
- buf[0] = 0;
-
- return NL_SKIP;
-}
-
-int nl80211_get_country(const char *ifname, char *buf)
-{
- int rv = -1;
- struct nl80211_msg_conveyor *req;
-
- req = nl80211_msg(ifname, NL80211_CMD_GET_REG, 0);
- if (req)
- {
- nl80211_send(req, nl80211_get_country_cb, buf);
- nl80211_free(req);
-
- if (buf[0])
- rv = 0;
- }
-
- return rv;
-}
-
-int nl80211_get_countrylist(const char *ifname, char *buf, int *len)
-{
- int i, count;
- struct iwinfo_country_entry *e = (struct iwinfo_country_entry *)buf;
- const struct iwinfo_iso3166_label *l;
-
- for( l = IWINFO_ISO3166_NAMES, count = 0; l->iso3166; l++, e++, count++ )
- {
- e->iso3166 = l->iso3166;
- e->ccode[0] = (l->iso3166 / 256);
- e->ccode[1] = (l->iso3166 % 256);
- }
-
- *len = (count * sizeof(struct iwinfo_country_entry));
- return 0;
-}
-
-static int nl80211_get_hwmodelist_cb(struct nl_msg *msg, void *arg)
-{
- int *modes = arg;
- int bands_remain, freqs_remain;
- uint16_t caps = 0;
- struct nlattr **attr = nl80211_parse(msg);
- struct nlattr *bands[NL80211_BAND_ATTR_MAX + 1];
- struct nlattr *freqs[NL80211_FREQUENCY_ATTR_MAX + 1];
- struct nlattr *band, *freq;
-
- *modes = 0;
-
- if (attr[NL80211_ATTR_WIPHY_BANDS])
- {
- nla_for_each_nested(band, attr[NL80211_ATTR_WIPHY_BANDS], bands_remain)
- {
- nla_parse(bands, NL80211_BAND_ATTR_MAX, nla_data(band),
- nla_len(band), NULL);
-
- if (bands[NL80211_BAND_ATTR_HT_CAPA])
- caps = nla_get_u16(bands[NL80211_BAND_ATTR_HT_CAPA]);
-
- /* Treat any nonzero capability as 11n */
- if (caps > 0)
- *modes |= IWINFO_80211_N;
-
- nla_for_each_nested(freq,
- bands[NL80211_BAND_ATTR_FREQS], freqs_remain)
- {
- nla_parse(freqs, NL80211_FREQUENCY_ATTR_MAX,
- nla_data(freq), nla_len(freq), NULL);
-
- if (!freqs[NL80211_FREQUENCY_ATTR_FREQ])
- continue;
-
- if (nla_get_u32(freqs[NL80211_FREQUENCY_ATTR_FREQ]) < 2485)
- {
- *modes |= IWINFO_80211_B;
- *modes |= IWINFO_80211_G;
- }
- else
- {
- *modes |= IWINFO_80211_A;
- }
- }
- }
- }
-
- return NL_SKIP;
-}
-
-int nl80211_get_hwmodelist(const char *ifname, int *buf)
-{
- struct nl80211_msg_conveyor *req;
-
- req = nl80211_msg(ifname, NL80211_CMD_GET_WIPHY, 0);
- if (req)
- {
- nl80211_send(req, nl80211_get_hwmodelist_cb, buf);
- nl80211_free(req);
- }
-
- return *buf ? 0 : -1;
-}
-
-int nl80211_get_mbssid_support(const char *ifname, int *buf)
-{
- /* Test whether we can create another interface */
- char *nif = nl80211_ifadd(ifname);
-
- if (nif)
- {
- *buf = (iwinfo_ifmac(nif) && iwinfo_ifup(nif));
-
- iwinfo_ifdown(nif);
- nl80211_ifdel(nif);
-
- return 0;
- }
-
- return -1;
-}
projects / project / luci.git / blobdiff