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 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 )
goto err;
- if( !strncmp(ifname, "mon.", 4) )
+ 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();
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);
+
+ if( phyidx > -1 )
+ NLA_PUT_U32(req, NL80211_ATTR_WIPHY, phyidx);
nlmsg_get(req);
return rv;
}
+static char * nl80211_phy2ifname(const char *ifname)
+{
+ int fd, phyidx = 0;
+ char buffer[64];
+ static char nif[IFNAMSIZ] = { 0 };
+
+ DIR *d;
+ struct dirent *e;
+
+ if( !strncmp(ifname, "radio", 5) )
+ {
+ phyidx = atoi(&ifname[5]);
+
+ 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( (fd = open(buffer, O_RDONLY)) > 0 )
+ {
+ if( (read(fd, buffer, sizeof(buffer)) > 0) &&
+ (atoi(buffer) == phyidx) )
+ {
+ strncpy(nif, e->d_name, sizeof(nif));
+ }
+
+ close(fd);
+ }
+
+ if( nif[0] )
+ break;
+ }
+
+ closedir(d);
+ }
+ }
+
+ return nif[0] ? nif : NULL;
+}
+
+static char * nl80211_add_tempif(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);
+
+ res = nl80211_send(req);
+ if( res )
+ {
+ rv = nif;
+ nl80211_free(res);
+ }
+
+ nla_put_failure:
+ nl80211_free(req);
+ }
+
+ return rv;
+}
+
+static void nl80211_del_tempif(const char *ifname)
+{
+ struct nl80211_msg_conveyor *req, *res;
+
+ req = nl80211_msg(ifname, NL80211_CMD_DEL_INTERFACE, 0);
+ if( req )
+ {
+ NLA_PUT_STRING(req->msg, NL80211_ATTR_IFNAME, ifname);
+
+ nl80211_free(nl80211_send(req));
+
+ nla_put_failure:
+ nl80211_free(req);
+ }
+}
+
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_scanlist(const char *ifname, char *buf, int *len)
{
- int freq, rssi, qmax, count;
+ int freq, rssi, qmax, count, is_tmp = 0;
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_add_tempif(ifname)) != NULL )
+ {
+ count = nl80211_get_scanlist(res, buf, len);
+ nl80211_del_tempif(res);
+ return count;
+ }
+ }
+
struct iwinfo_scanlist_entry *e = (struct iwinfo_scanlist_entry *)buf;
/* WPA supplicant */
{
if( (res = nl80211_ifname2phy(ifname)) != NULL )
{
- /*
- * This is a big ugly hack, just look away.
- */
+ /* Got a temp interface, don't create yet another one */
+ if( !strncmp(ifname, "tmp.", 4) )
+ {
+ sprintf(cmd, "ifconfig %s up 2>/dev/null", ifname);
+ if( WEXITSTATUS(system(cmd)) )
+ return -1;
+
+ wext_get_scanlist(ifname, buf, len);
+
+ sprintf(cmd, "ifconfig %s down 2>/dev/null", ifname);
+ (void) WEXITSTATUS(system(cmd));
- sprintf(cmd, "ifconfig %s down 2>/dev/null", ifname);
- if( WEXITSTATUS(system(cmd)) )
- goto out;
+ return 0;
+ }
- sprintf(cmd, "iw phy %s interface add scan.%s "
- "type station 2>/dev/null", res, ifname);
- if( WEXITSTATUS(system(cmd)) )
- goto out;
+ /* Spawn a new scan interface */
+ else
+ {
+ sprintf(cmd, "ifconfig %s down 2>/dev/null", ifname);
+ if( WEXITSTATUS(system(cmd)) )
+ goto out;
- sprintf(cmd, "ifconfig scan.%s up 2>/dev/null", ifname);
- if( WEXITSTATUS(system(cmd)) )
- goto out;
+ sprintf(cmd, "iw phy %s interface add scan.%s "
+ "type station 2>/dev/null", res, ifname);
+ if( WEXITSTATUS(system(cmd)) )
+ goto out;
- sprintf(cmd, "scan.%s", ifname);
- wext_get_scanlist(cmd, buf, len);
+ sprintf(cmd, "ifconfig scan.%s up 2>/dev/null", ifname);
+ if( WEXITSTATUS(system(cmd)) )
+ goto out;
- out:
- sprintf(cmd, "ifconfig scan.%s down 2>/dev/null", ifname);
- (void) WEXITSTATUS(system(cmd));
+ sprintf(cmd, "scan.%s", ifname);
+ wext_get_scanlist(cmd, buf, len);
- sprintf(cmd, "iw dev scan.%s del 2>/dev/null", ifname);
- (void) WEXITSTATUS(system(cmd));
+ out:
+ sprintf(cmd, "ifconfig scan.%s down 2>/dev/null", ifname);
+ (void) WEXITSTATUS(system(cmd));
- sprintf(cmd, "ifconfig %s up 2>/dev/null", ifname);
- (void) WEXITSTATUS(system(cmd));
+ sprintf(cmd, "iw dev scan.%s del 2>/dev/null", ifname);
+ (void) WEXITSTATUS(system(cmd));
- sprintf(cmd, "killall -HUP hostapd 2>/dev/null");
- (void) WEXITSTATUS(system(cmd));
+ sprintf(cmd, "ifconfig %s up 2>/dev/null", ifname);
+ (void) WEXITSTATUS(system(cmd));
- return 0;
+ sprintf(cmd, "killall -HUP hostapd 2>/dev/null");
+ (void) WEXITSTATUS(system(cmd));
+
+ return 0;
+ }
}
}
int nl80211_get_freqlist(const char *ifname, char *buf, int *len)
{
- return wext_get_freqlist(ifname, buf, len);
+ char *phy;
+ int count = 0, bands_remain, freqs_remain;
+ struct nl80211_msg_conveyor *req, *res;
+ struct nlattr *bands[NL80211_BAND_ATTR_MAX + 1];
+ struct nlattr *freqs[NL80211_FREQUENCY_ATTR_MAX + 1];
+ struct nlattr *band, *freq;
+ struct iwinfo_freqlist_entry *e = (struct iwinfo_freqlist_entry *)buf;
+
+ 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 },
+ };
+
+ if( !wext_get_freqlist(ifname, buf, len) )
+ return 0;
+
+ req = nl80211_msg(ifname, NL80211_CMD_GET_WIPHY, 0);
+ if( req )
+ {
+ res = nl80211_send(req);
+ if( res )
+ {
+ nla_for_each_nested(band,
+ res->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);
+
+ e->mhz = nla_get_u32(freqs[NL80211_FREQUENCY_ATTR_FREQ]);
+ e->channel = nl80211_freq2channel(e->mhz);
+
+ e++;
+ count++;
+ }
+ }
+ nl80211_free(res);
+ }
+ nl80211_free(req);
+ }
+
+ if( count > 0 )
+ {
+ *len = count * sizeof(struct iwinfo_freqlist_entry);
+ return 0;
+ }
+
+ return -1;
}
int nl80211_get_country(const char *ifname, char *buf)
projects / project / luci.git / blobdiff