{
int err, fd;
- if( !nls )
+ if (!nls)
{
nls = malloc(sizeof(struct nl80211_state));
- if( !nls ) {
+ if (!nls) {
err = -ENOMEM;
goto err;
}
nls->nl_sock = nl_socket_alloc();
- if( !nls->nl_sock ) {
+ if (!nls->nl_sock) {
err = -ENOMEM;
goto err;
}
}
fd = nl_socket_get_fd(nls->nl_sock);
- if( fcntl(fd, F_SETFD, fcntl(fd, F_GETFD) | FD_CLOEXEC) < 0 )
+ if (fcntl(fd, F_SETFD, fcntl(fd, F_GETFD) | FD_CLOEXEC) < 0)
{
err = -EINVAL;
goto err;
}
nls->nl80211 = genl_ctrl_search_by_name(nls->nl_cache, "nl80211");
- if( !nls->nl80211 )
+ if (!nls->nl80211)
{
err = -ENOENT;
goto err;
err:
- if( nls && nls->nl_sock )
- nl_socket_free(nls->nl_sock);
-
- if( nls && nls->nl_cache )
- nl_cache_free(nls->nl_cache);
-
- if( nls )
- free(nls);
-
- nls = NULL;
-
+ nl80211_close();
return err;
}
static int nl80211_msg_response(struct nl_msg *msg, void *arg)
{
- struct nl80211_msg_conveyor *cv = arg;
-
- nlmsg_get(msg);
-
- cv->msg = msg;
- cv->hdr = nlmsg_data(nlmsg_hdr(cv->msg));
-
- nla_parse(cv->attr, NL80211_ATTR_MAX,
- genlmsg_attrdata(cv->hdr, 0),
- genlmsg_attrlen(cv->hdr, 0), NULL);
-
return NL_SKIP;
}
static void nl80211_free(struct nl80211_msg_conveyor *cv)
{
- if( cv && cv->cb )
- nl_cb_put(cv->cb);
+ if (cv)
+ {
+ if (cv->cb)
+ nl_cb_put(cv->cb);
- if( cv && cv->msg )
- nlmsg_free(cv->msg);
+ if (cv->msg)
+ nlmsg_free(cv->msg);
- if( cv )
- {
cv->cb = NULL;
cv->msg = NULL;
}
{
static struct nl80211_msg_conveyor cv;
- int ifidx;
+ int ifidx = -1, phyidx = -1;
struct nl_msg *req = NULL;
struct nl_cb *cb = NULL;
- if( nl80211_init() < 0 )
+ if (nl80211_init() < 0)
goto err;
- if( !strncmp(ifname, "mon.", 4) )
+ 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 )
+ if ((ifidx < 0) && (phyidx < 0))
return NULL;
req = nlmsg_alloc();
- if( !req )
+ if (!req)
goto err;
cb = nl_cb_alloc(NL_CB_DEFAULT);
- if( !cb )
+ if (!cb)
goto err;
genlmsg_put(req, 0, 0, genl_family_get_id(nls->nl80211), 0,
flags, cmd, 0);
- NLA_PUT_U32(req, NL80211_ATTR_IFINDEX, ifidx);
+ if (ifidx > -1)
+ NLA_PUT_U32(req, NL80211_ATTR_IFINDEX, ifidx);
- nlmsg_get(req);
+ if (phyidx > -1)
+ NLA_PUT_U32(req, NL80211_ATTR_WIPHY, phyidx);
- cv.msg = req;
- cv.cb = cb;
- cv.custom_cb = 0;
+ cv.msg = req;
+ cv.cb = cb;
return &cv;
err:
nla_put_failure:
- if( cb )
+ if (cb)
nl_cb_put(cb);
- if( req )
+ if (req)
nlmsg_free(req);
return NULL;
}
-static void nl80211_cb(struct nl80211_msg_conveyor *cv,
- int (*cb)(struct nl_msg *, void *), void *arg)
-{
- cv->custom_cb = 1;
- nl_cb_set(cv->cb, NL_CB_VALID, NL_CB_CUSTOM, cb, arg);
-}
-
-static struct nl80211_msg_conveyor * nl80211_send(struct nl80211_msg_conveyor *cv)
-{
+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( !cv->custom_cb )
+ 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 )
+ 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);
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 (freq / 5) - 1000;
}
-static char * nl80211_getval(const char *buf, const char *key)
+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') )
+ if (!lkey[0] && (buf[i] == ' ' || buf[i] == '\t'))
{
ln++;
}
- else if( !lkey[0] && (buf[i] == '=') )
+ else if (!lkey[0] && (buf[i] == '='))
{
- if( (&buf[i] - ln) > 0 )
+ if ((&buf[i] - ln) > 0)
memcpy(lkey, ln, min(sizeof(lkey) - 1, &buf[i] - ln));
}
- else if( buf[i] == '\n' )
+ else if (buf[i] == '\n')
{
- if( lkey[0] && !strcmp(lkey, key) )
+ if (lkey[0])
{
memcpy(lval, ln + strlen(lkey) + 1,
min(sizeof(lval) - 1, &buf[i] - ln - strlen(lkey) - 1));
- return lval;
+ 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];
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, *res;
+ struct nl80211_msg_conveyor *req;
+
+ memset(phy, 0, sizeof(phy));
req = nl80211_msg(ifname, NL80211_CMD_GET_WIPHY, 0);
- if( req )
+ if (req)
{
- res = nl80211_send(req);
- if( res )
- {
- if( res->attr[NL80211_ATTR_WIPHY_NAME] )
- {
- snprintf(phy, sizeof(phy), "%s",
- nla_get_string(res->attr[NL80211_ATTR_WIPHY_NAME]));
- }
- nl80211_free(res);
- }
+ nl80211_send(req, nl80211_ifname2phy_cb, phy);
nl80211_free(req);
}
static char buf[4096] = { 0 };
FILE *conf;
- if( (phy = nl80211_ifname2phy(ifname)) != NULL )
+ if ((phy = nl80211_ifname2phy(ifname)) != NULL)
{
snprintf(path, sizeof(path), "/var/run/hostapd-%s.conf", phy);
- if( (conf = fopen(path, "r")) != NULL )
+ if ((conf = fopen(path, "r")) != NULL)
{
fread(buf, sizeof(buf) - 1, 1, conf);
fclose(conf);
return NULL;
}
-static char * nl80211_wpasupp_info(const char *ifname, const char *cmd)
+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 sock = -1, len;
+ int numtry = 0;
+ int sock = -1;
char *rv = NULL;
size_t remote_length, local_length;
- static char buffer[1024] = { 0 };
+ static char buffer[10240] = { 0 };
- struct timeval tv = { 2, 0 };
struct sockaddr_un local = { 0 };
struct sockaddr_un remote = { 0 };
- fd_set rfds;
sock = socket(PF_UNIX, SOCK_DGRAM, 0);
- if( sock < 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 )
+ if (fcntl(sock, F_SETFD, fcntl(sock, F_GETFD) | FD_CLOEXEC) < 0)
goto out;
- if( connect(sock, (struct sockaddr *) &remote, remote_length) )
+ 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) )
+ if (bind(sock, (struct sockaddr *) &local, local_length))
goto out;
- send(sock, cmd, strlen(cmd), 0);
- while( 1 )
- {
- FD_ZERO(&rfds);
- FD_SET(sock, &rfds);
+ send(sock, "ATTACH", 6, 0);
+
+ if (nl80211_wpactl_recv(sock, buffer, sizeof(buffer)) <= 0)
+ goto out;
- if( select(sock + 1, &rfds, NULL, NULL, &tv) < 0 )
- goto out;
- if( !FD_ISSET(sock, &rfds) )
- break;
+ send(sock, cmd, strlen(cmd), 0);
- if( (len = recv(sock, buffer, sizeof(buffer), 0)) <= 0 )
- goto out;
+ while( numtry++ < 5 )
+ {
+ if (nl80211_wpactl_recv(sock, buffer, sizeof(buffer)) <= 0)
+ {
+ if (event)
+ continue;
- buffer[len] = 0;
+ break;
+ }
- if( buffer[0] != '<' )
+ if ((!event && buffer[0] != '<') || strstr(buffer, event))
break;
}
out:
close(sock);
- unlink(local.sun_path);
+
+ 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);
{
char *ssid;
- if( !wext_get_ssid(ifname, buf) )
+ if (!wext_get_ssid(ifname, buf))
{
return 0;
}
else if( (ssid = nl80211_hostapd_info(ifname)) &&
- (ssid = nl80211_getval(ssid, "ssid")) )
+ (ssid = nl80211_getval(ifname, ssid, "ssid")) )
{
memcpy(buf, ssid, strlen(ssid));
return 0;
char *bssid;
unsigned char mac[6];
- if( !wext_get_bssid(ifname, buf) )
+ if (!wext_get_bssid(ifname, buf))
{
return 0;
}
- else if( (bssid = nl80211_hostapd_info(ifname)) &&
- (bssid = nl80211_getval(bssid, "bssid")) )
+ 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);
int nl80211_get_channel(const char *ifname, int *buf)
{
- return wext_get_channel(ifname, 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)
{
- return wext_get_frequency(ifname, 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)
}
-static int nl80211_get_signal_cb(struct nl_msg *msg, void *arg)
+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 genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
- struct nlattr *attr[NL80211_ATTR_MAX + 1];
+ struct nlattr **attr = nl80211_parse(msg);
struct nlattr *sinfo[NL80211_STA_INFO_MAX + 1];
struct nlattr *rinfo[NL80211_RATE_INFO_MAX + 1];
[NL80211_RATE_INFO_SHORT_GI] = { .type = NLA_FLAG },
};
- nla_parse(attr, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
- genlmsg_attrlen(gnlh, 0), NULL);
-
- if( attr[NL80211_ATTR_STA_INFO] )
+ 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] )
+ 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 (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] )
+ if (rinfo[NL80211_RATE_INFO_BITRATE])
{
mbit = nla_get_u16(rinfo[NL80211_RATE_INFO_BITRATE]);
rr->rate = rr->rate
return NL_SKIP;
}
-int nl80211_get_bitrate(const char *ifname, int *buf)
+static void nl80211_fill_signal(const char *ifname, struct nl80211_rssi_rate *r)
{
- struct nl80211_rssi_rate rr;
+ DIR *d;
+ struct dirent *de;
struct nl80211_msg_conveyor *req;
- if( !wext_get_bitrate(ifname, buf) )
- return 0;
+ r->rssi = 0;
+ r->rate = 0;
- req = nl80211_msg(ifname, NL80211_CMD_GET_STATION, NLM_F_DUMP);
- if( req )
+ if ((d = opendir("/sys/class/net")) != NULL)
{
- rr.rssi = 0;
- rr.rate = 0;
-
- nl80211_cb(req, nl80211_get_signal_cb, &rr);
- nl80211_send(req);
- nl80211_free(req);
-
- if( rr.rate )
+ while ((de = readdir(d)) != NULL)
{
- *buf = (rr.rate * 100);
- return 0;
+ 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;
- struct nl80211_msg_conveyor *req;
- if( !wext_get_signal(ifname, buf) )
+ if (!wext_get_signal(ifname, buf))
return 0;
- req = nl80211_msg(ifname, NL80211_CMD_GET_STATION, NLM_F_DUMP);
- if( req )
- {
- rr.rssi = 0;
- rr.rate = 0;
-
- nl80211_cb(req, nl80211_get_signal_cb, &rr);
- nl80211_send(req);
- nl80211_free(req);
+ nl80211_fill_signal(ifname, &rr);
- if( rr.rssi )
- {
- *buf = rr.rssi;
- return 0;
- }
+ if (rr.rssi)
+ {
+ *buf = rr.rssi;
+ return 0;
}
return -1;
}
-int nl80211_get_noise(const char *ifname, int *buf)
+static int nl80211_get_noise_cb(struct nl_msg *msg, void *arg)
{
- int rv = -1;
- struct nl80211_msg_conveyor *req, *res;
+ 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_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 )
+ if (req)
{
- res = nl80211_send(req);
- if( res )
+ noise = 0;
+
+ nl80211_send(req, nl80211_get_noise_cb, &noise);
+ nl80211_free(req);
+
+ if (noise)
{
- if( res->attr[NL80211_ATTR_SURVEY_INFO] )
- {
- if( !nla_parse_nested(si, NL80211_SURVEY_INFO_MAX,
- res->attr[NL80211_ATTR_SURVEY_INFO], sp) &&
- si[NL80211_SURVEY_INFO_NOISE] )
- {
- *buf = (int8_t)nla_get_u8(si[NL80211_SURVEY_INFO_NOISE]);
- rv = 0;
- }
- }
- nl80211_free(res);
+ *buf = noise;
+ return 0;
}
- nl80211_free(req);
}
- return rv;
+ return -1;
}
int nl80211_get_quality(const char *ifname, int *buf)
{
int signal;
- if( wext_get_quality(ifname, buf) )
+ if (wext_get_quality(ifname, buf))
{
*buf = 0;
- if( !nl80211_get_signal(ifname, &signal) )
+ if (!nl80211_get_signal(ifname, &signal))
{
/* A positive signal level is usually just a quality
* value, pass through as-is */
- if( signal >= 0 )
+ if (signal >= 0)
{
*buf = signal;
}
* by adding 110 to the signal level */
else
{
- if( signal < -110 )
+ if (signal < -110)
signal = -110;
- else if( signal > -40 )
+ else if (signal > -40)
signal = -40;
*buf = (signal + 110);
int nl80211_get_quality_max(const char *ifname, int *buf)
{
- if( wext_get_quality_max(ifname, buf) )
+ if (wext_get_quality_max(ifname, buf))
/* The cfg80211 wext compat layer assumes a maximum
* quality of 70 */
*buf = 70;
char *val, *res;
struct iwinfo_crypto_entry *c = (struct iwinfo_crypto_entry *)buf;
- /* Hostapd */
- if( (res = nl80211_hostapd_info(ifname)) &&
- nl80211_getval(res, "interface") )
- {
- if( (val = nl80211_getval(res, "auth_algs")) && (val > 0) )
- {
- c->auth_suites |= IWINFO_KMGMT_NONE;
-
- 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(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;
-
- return 0;
- }
-
-
- if( (val = nl80211_getval(res, "wpa")) != NULL )
- c->wpa_version = atoi(val);
-
-
- val = nl80211_getval(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(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;
- }
-
-
- c->group_ciphers = c->pair_ciphers;
- c->enabled = (c->auth_algs || c->auth_suites) ? 1 : 0;
-
- return 0;
- }
-
/* WPA supplicant */
- else if( (res = nl80211_wpasupp_info(ifname, "STATUS")) &&
- (val = nl80211_getval(res, "pairwise_cipher")) )
+ if( (res = nl80211_wpactl_info(ifname, "STATUS", NULL)) &&
+ (val = nl80211_getval(NULL, res, "pairwise_cipher")) )
{
/* WEP */
- if( strstr(val, "WEP") )
+ if (strstr(val, "WEP"))
{
- if( strstr(val, "WEP-40") )
+ if (strstr(val, "WEP-40"))
c->pair_ciphers |= IWINFO_CIPHER_WEP40;
- else if( strstr(val, "WEP-104") )
+ else if (strstr(val, "WEP-104"))
c->pair_ciphers |= IWINFO_CIPHER_WEP104;
c->enabled = 1;
/* WPA */
else
{
- if( strstr(val, "TKIP") )
+ if (strstr(val, "TKIP"))
c->pair_ciphers |= IWINFO_CIPHER_TKIP;
- else if( strstr(val, "CCMP") )
+ else if (strstr(val, "CCMP"))
c->pair_ciphers |= IWINFO_CIPHER_CCMP;
- else if( strstr(val, "NONE") )
+ else if (strstr(val, "NONE"))
c->pair_ciphers |= IWINFO_CIPHER_NONE;
- else if( strstr(val, "WEP-40") )
+ else if (strstr(val, "WEP-40"))
c->pair_ciphers |= IWINFO_CIPHER_WEP40;
- else if( strstr(val, "WEP-104") )
+ else if (strstr(val, "WEP-104"))
c->pair_ciphers |= IWINFO_CIPHER_WEP104;
- if( (val = nl80211_getval(res, "group_cipher")) )
+ if ((val = nl80211_getval(NULL, res, "group_cipher")))
{
- if( strstr(val, "TKIP") )
+ if (strstr(val, "TKIP"))
c->group_ciphers |= IWINFO_CIPHER_TKIP;
- else if( strstr(val, "CCMP") )
+ else if (strstr(val, "CCMP"))
c->group_ciphers |= IWINFO_CIPHER_CCMP;
- else if( strstr(val, "NONE") )
+ else if (strstr(val, "NONE"))
c->group_ciphers |= IWINFO_CIPHER_NONE;
- else if( strstr(val, "WEP-40") )
+ else if (strstr(val, "WEP-40"))
c->group_ciphers |= IWINFO_CIPHER_WEP40;
- else if( strstr(val, "WEP-104") )
+ else if (strstr(val, "WEP-104"))
c->group_ciphers |= IWINFO_CIPHER_WEP104;
}
- if( (val = nl80211_getval(res, "key_mgmt")) )
+ if ((val = nl80211_getval(NULL, res, "key_mgmt")))
{
- if( strstr(val, "WPA2") )
+ if (strstr(val, "WPA2"))
c->wpa_version = 2;
- else if( strstr(val, "WPA") )
+ else if (strstr(val, "WPA"))
c->wpa_version = 1;
- if( strstr(val, "PSK") )
+ if (strstr(val, "PSK"))
c->auth_suites |= IWINFO_KMGMT_PSK;
- else if( strstr(val, "EAP") || strstr(val, "802.1X") )
+ else if (strstr(val, "EAP") || strstr(val, "802.1X"))
c->auth_suites |= IWINFO_KMGMT_8021x;
- else if( strstr(val, "NONE") )
+ else if (strstr(val, "NONE"))
c->auth_suites |= IWINFO_KMGMT_NONE;
}
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_assoc_count *ac = arg;
- struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
- struct nlattr *attr[NL80211_ATTR_MAX + 1];
+ 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_PLINK_STATE] = { .type = NLA_U8 },
};
- nla_parse(attr, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
- genlmsg_attrlen(gnlh, 0), NULL);
+ /* advance to end of array */
+ e += arr->count;
- if( attr[NL80211_ATTR_MAC] )
- memcpy(ac->entry->mac, nla_data(attr[NL80211_ATTR_MAC]), 6);
+ if (attr[NL80211_ATTR_MAC])
+ memcpy(e->mac, nla_data(attr[NL80211_ATTR_MAC]), 6);
- if( attr[NL80211_ATTR_STA_INFO] )
+ if (attr[NL80211_ATTR_STA_INFO])
{
- if( !nla_parse_nested(sinfo, NL80211_STA_INFO_MAX,
- attr[NL80211_ATTR_STA_INFO], stats_policy) )
+ if (!nla_parse_nested(sinfo, NL80211_STA_INFO_MAX,
+ attr[NL80211_ATTR_STA_INFO], stats_policy))
{
- if( sinfo[NL80211_STA_INFO_SIGNAL] )
- ac->entry->signal = nla_get_u8(sinfo[NL80211_STA_INFO_SIGNAL]);
+ if (sinfo[NL80211_STA_INFO_SIGNAL])
+ e->signal = nla_get_u8(sinfo[NL80211_STA_INFO_SIGNAL]);
}
}
- ac->entry->noise = ac->noise;
- ac->entry++;
- ac->count++;
+ e->noise = 0; /* filled in by caller */
+ arr->count++;
return NL_SKIP;
}
int nl80211_get_assoclist(const char *ifname, char *buf, int *len)
{
- struct nl80211_assoc_count ac;
+ 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;
- nl80211_get_noise(ifname, &ac.noise);
-
- req = nl80211_msg(ifname, NL80211_CMD_GET_STATION, NLM_F_DUMP);
- if( req )
+ if ((d = opendir("/sys/class/net")) != NULL)
{
- ac.count = 0;
- ac.entry = (struct iwinfo_assoclist_entry *)buf;
+ 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);
- nl80211_cb(req, nl80211_get_assoclist_cb, &ac);
- nl80211_send(req);
- nl80211_free(req);
+ if (req)
+ {
+ nl80211_send(req, nl80211_get_assoclist_cb, &arr);
+ nl80211_free(req);
+ }
+
+ break;
+ }
+ }
+
+ closedir(d);
- *len = (ac.count * sizeof(struct iwinfo_assoclist_entry));
+ 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;
}
-int nl80211_get_txpwrlist(const char *ifname, char *buf, int *len)
+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;
- int dbm_max = -1, dbm_cur, dbm_cnt;
- struct nl80211_msg_conveyor *req, *res;
+
+ 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;
- struct iwinfo_txpwrlist_entry entry;
static struct nla_policy freq_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = {
[NL80211_FREQUENCY_ATTR_FREQ] = { .type = NLA_U32 },
[NL80211_FREQUENCY_ATTR_MAX_TX_POWER] = { .type = NLA_U32 },
};
- if( nl80211_get_channel(ifname, &ch_cur) )
- return -1;
+ ch_cur = *dbm_max; /* value int* is initialized with channel by caller */
+ *dbm_max = -1;
- req = nl80211_msg(ifname, NL80211_CMD_GET_WIPHY, 0);
- if( req )
+ nla_for_each_nested(band, attr[NL80211_ATTR_WIPHY_BANDS], bands_remain)
{
- res = nl80211_send(req);
- if( res )
+ 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_for_each_nested(band,
- res->attr[NL80211_ATTR_WIPHY_BANDS], bands_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] )
{
- nla_parse(bands, NL80211_BAND_ATTR_MAX, nla_data(band),
- nla_len(band), NULL);
+ *dbm_max = (int)(0.01 * nla_get_u32(
+ freqs[NL80211_FREQUENCY_ATTR_MAX_TX_POWER]));
- 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);
+ break;
+ }
+ }
+ }
- ch_cmp = nl80211_freq2channel(
- nla_get_u32(freqs[NL80211_FREQUENCY_ATTR_FREQ]));
+ return NL_SKIP;
+}
- if( (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]));
+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;
- break;
- }
- }
- }
+ if (nl80211_get_channel(ifname, &ch_cur))
+ ch_cur = 0;
- nl80211_free(res);
- }
+ 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 )
+ if (dbm_max > -1)
{
- for( dbm_cur = 0, dbm_cnt = 0;
+ for (dbm_cur = 0, dbm_cnt = 0;
dbm_cur < dbm_max;
- dbm_cur += 2, dbm_cnt++ )
+ dbm_cur++, dbm_cnt++)
{
entry.dbm = dbm_cur;
- entry.mw = wext_dbm2mw(dbm_cur);
+ entry.mw = iwinfo_dbm2mw(dbm_cur);
memcpy(&buf[dbm_cnt * sizeof(entry)], &entry, sizeof(entry));
}
entry.dbm = dbm_max;
- entry.mw = wext_dbm2mw(dbm_max);
+ entry.mw = iwinfo_dbm2mw(dbm_max);
memcpy(&buf[dbm_cnt * sizeof(entry)], &entry, sizeof(entry));
dbm_cnt++;
static void nl80211_get_scancrypto(const char *spec,
struct iwinfo_crypto_entry *c)
{
- if( strstr(spec, "OPEN") )
- {
- c->enabled = 0;
- }
- else
+ if (strstr(spec, "WPA") || strstr(spec, "WEP"))
{
c->enabled = 1;
- if( strstr(spec, "WPA2-") && strstr(spec, "WPA-") )
+ if (strstr(spec, "WPA2-") && strstr(spec, "WPA-"))
c->wpa_version = 3;
- else if( strstr(spec, "WPA2") )
+ else if (strstr(spec, "WPA2"))
c->wpa_version = 2;
- else if( strstr(spec, "WPA") )
+ else if (strstr(spec, "WPA"))
c->wpa_version = 1;
- else if( strstr(spec, "WEP") )
+ else if (strstr(spec, "WEP"))
c->auth_algs = IWINFO_AUTH_OPEN | IWINFO_AUTH_SHARED;
- if( strstr(spec, "PSK") )
+ if (strstr(spec, "PSK"))
c->auth_suites |= IWINFO_KMGMT_PSK;
- if( strstr(spec, "802.1X") || strstr(spec, "EAP") )
+ if (strstr(spec, "802.1X") || strstr(spec, "EAP"))
c->auth_suites |= IWINFO_KMGMT_8021x;
- if( strstr(spec, "WPA-NONE") )
+ if (strstr(spec, "WPA-NONE"))
c->auth_suites |= IWINFO_KMGMT_NONE;
- if( strstr(spec, "TKIP") )
+ if (strstr(spec, "TKIP"))
c->pair_ciphers |= IWINFO_CIPHER_TKIP;
- if( strstr(spec, "CCMP") )
+ if (strstr(spec, "CCMP"))
c->pair_ciphers |= IWINFO_CIPHER_CCMP;
- if( strstr(spec, "WEP-40") )
+ if (strstr(spec, "WEP-40"))
c->pair_ciphers |= IWINFO_CIPHER_WEP40;
- if( strstr(spec, "WEP-104") )
+ 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 cmd[256];
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_wpasupp_info(ifname, "SCAN")) &&
- !strcmp(res, "OK\n") )
+ if ((res = nl80211_wpactl_info(ifname, "SCAN", "CTRL-EVENT-SCAN-RESULTS")))
{
- sleep(2);
-
- if( (res = nl80211_wpasupp_info(ifname, "SCAN_RESULTS")) )
+ if ((res = nl80211_wpactl_info(ifname, "SCAN_RESULTS", NULL)))
{
nl80211_get_quality_max(ifname, &qmax);
count = 0;
- while( sscanf(res, "%17s %d %d %255s %127[^\n]\n",
+ while( sscanf(res, "%17s %d %d %255s%*[ \t]%127[^\n]\n",
bssid, &freq, &rssi, cipher, ssid) > 0 )
{
/* BSSID */
e->signal = rssi;
/* Quality */
- if( rssi < 0 )
+ 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 )
+ if (rssi < -110)
rssi = -110;
- else if( rssi > -40 )
+ else if (rssi > -40)
rssi = -40;
e->quality = (rssi + 110);
count++;
e++;
+
+ memset(ssid, 0, sizeof(ssid));
+ memset(bssid, 0, sizeof(bssid));
+ memset(cipher, 0, sizeof(cipher));
}
*len = count * sizeof(struct iwinfo_scanlist_entry);
/* AP scan */
else
{
- if( (res = nl80211_ifname2phy(ifname)) != NULL )
+ /* Got a temp interface, don't create yet another one */
+ if (!strncmp(ifname, "tmp.", 4))
{
- /*
- * This is a big ugly hack, just look away.
- */
+ if (!iwinfo_ifup(ifname))
+ return -1;
- sprintf(cmd, "ifconfig %s down 2>/dev/null", ifname);
- if( WEXITSTATUS(system(cmd)) )
- goto out;
+ wext_get_scanlist(ifname, buf, len);
+ iwinfo_ifdown(ifname);
+ return 0;
+ }
- sprintf(cmd, "iw phy %s interface add scan.%s "
- "type station 2>/dev/null", res, ifname);
- if( WEXITSTATUS(system(cmd)) )
+ /* Spawn a new scan interface */
+ else
+ {
+ if (!(res = nl80211_ifadd(ifname)))
goto out;
- sprintf(cmd, "ifconfig scan.%s up 2>/dev/null", ifname);
- if( WEXITSTATUS(system(cmd)) )
+ if (!iwinfo_ifmac(res))
goto out;
- sprintf(cmd, "scan.%s", ifname);
- wext_get_scanlist(cmd, buf, len);
+ /* 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;
+}
- out:
- sprintf(cmd, "ifconfig scan.%s down 2>/dev/null", ifname);
- (void) WEXITSTATUS(system(cmd));
+static int nl80211_get_freqlist_cb(struct nl_msg *msg, void *arg)
+{
+ int bands_remain, freqs_remain;
- sprintf(cmd, "iw dev scan.%s del 2>/dev/null", ifname);
- (void) WEXITSTATUS(system(cmd));
+ struct nl80211_array_buf *arr = arg;
+ struct iwinfo_freqlist_entry *e = arr->buf;
- sprintf(cmd, "ifconfig %s up 2>/dev/null", ifname);
- (void) WEXITSTATUS(system(cmd));
+ 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;
- sprintf(cmd, "killall -HUP hostapd 2>/dev/null");
- (void) WEXITSTATUS(system(cmd));
+ 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 },
+ };
- return 0;
+ 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 -1;
+ return NL_SKIP;
}
int nl80211_get_freqlist(const char *ifname, char *buf, int *len)
{
- return wext_get_freqlist(ifname, buf, 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, *res;
+ struct nl80211_msg_conveyor *req;
req = nl80211_msg(ifname, NL80211_CMD_GET_REG, 0);
- if( req )
+ if (req)
{
- res = nl80211_send(req);
- if( res )
- {
- if( res->attr[NL80211_ATTR_REG_ALPHA2] )
- {
- memcpy(buf, nla_data(res->attr[NL80211_ATTR_REG_ALPHA2]), 2);
- rv = 0;
- }
- nl80211_free(res);
- }
+ nl80211_send(req, nl80211_get_country_cb, buf);
nl80211_free(req);
+
+ if (buf[0])
+ rv = 0;
}
return rv;
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)
{
- /* We assume that multi bssid is always possible */
- *buf = 1;
- return 0;
+ /* 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