Add support for channel info in interface info

[thirdparty/iw.git] / interface.c

diff --git a/interface.c b/interface.c
index 8c07ba1d7420b84ec924b0734271ea7794ec494c..6c90f9d7f2324cfbd8c345251ebbc58968ea54a5 100644 (file)
--- a/interface.c
+++ b/interface.c
@@ -241,6 +241,22 @@ TOPLEVEL(del, NULL, NL80211_CMD_DEL_INTERFACE, 0, CIB_NETDEV, handle_interface_d
         "Remove this virtual interface");
 HIDDEN(interface, del, NULL, NL80211_CMD_DEL_INTERFACE, 0, CIB_NETDEV, handle_interface_del);
 
+static char *channel_type_name(enum nl80211_channel_type channel_type)
+{
+       switch (channel_type) {
+       case NL80211_CHAN_NO_HT:
+               return "NO HT";
+       case NL80211_CHAN_HT20:
+               return "HT20";
+       case NL80211_CHAN_HT40MINUS:
+               return "HT40-";
+       case NL80211_CHAN_HT40PLUS:
+               return "HT40+";
+       default:
+               return "unknown";
+       }
+}
+
 static int print_iface_handler(struct nl_msg *msg, void *arg)
 {
        struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
@@ -267,6 +283,17 @@ static int print_iface_handler(struct nl_msg *msg, void *arg)
                printf("%s\ttype %s\n", indent, iftype_name(nla_get_u32(tb_msg[NL80211_ATTR_IFTYPE])));
        if (!wiphy && tb_msg[NL80211_ATTR_WIPHY])
                printf("%s\twiphy %d\n", indent, nla_get_u32(tb_msg[NL80211_ATTR_WIPHY]));
+       if (tb_msg[NL80211_ATTR_WIPHY_FREQ]) {
+               uint32_t freq = nla_get_u32(tb_msg[NL80211_ATTR_WIPHY_FREQ]);
+               enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
+
+               if (tb_msg[NL80211_ATTR_WIPHY_CHANNEL_TYPE])
+                       channel_type = nla_get_u32(tb_msg[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
+
+               printf("%s\tchannel %d (%d MHz) %s\n", indent,
+                      ieee80211_frequency_to_channel(freq), freq,
+                      channel_type_name(channel_type));
+       }
 
        return NL_SKIP;
 }