nl80211: Print if_indices list in debug log

This makes it easier to debug dynamic interface addition/removal.

Signed-off-by: Jouni Malinen <j@w1.fi>

diff --git a/src/drivers/driver_nl80211.c b/src/drivers/driver_nl80211.c
index 3ecce19132410f7d5748d6cee3260496ef9f4414..1d504a39dc6a75f49921f726cf7a86c8b747ebdd 100644 (file)
--- a/src/drivers/driver_nl80211.c
+++ b/src/drivers/driver_nl80211.c
@@ -9446,6 +9446,29 @@ static int i802_sta_disassoc(void *priv, const u8 *own_addr, const u8 *addr,
 }
 
 
+static void dump_ifidx(struct wpa_driver_nl80211_data *drv)
+{
+       char buf[200], *pos, *end;
+       int i, res;
+
+       pos = buf;
+       end = pos + sizeof(buf);
+
+       for (i = 0; i < drv->num_if_indices; i++) {
+               if (!drv->if_indices[i])
+                       continue;
+               res = os_snprintf(pos, end - pos, " %d", drv->if_indices[i]);
+               if (res < 0 || res >= end - pos)
+                       break;
+               pos += res;
+       }
+       *pos = '\0';
+
+       wpa_printf(MSG_DEBUG, "nl80211: if_indices[%d]:%s",
+                  drv->num_if_indices, buf);
+}
+
+
 static void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
 {
        int i;
@@ -9456,6 +9479,7 @@ static void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
        for (i = 0; i < drv->num_if_indices; i++) {
                if (drv->if_indices[i] == 0) {
                        drv->if_indices[i] = ifidx;
+                       dump_ifidx(drv);
                        return;
                }
        }
@@ -9481,6 +9505,7 @@ static void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
                          sizeof(drv->default_if_indices));
        drv->if_indices[drv->num_if_indices] = ifidx;
        drv->num_if_indices++;
+       dump_ifidx(drv);
 }
 
 
@@ -9494,6 +9519,7 @@ static void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
                        break;
                }
        }
+       dump_ifidx(drv);
 }