1 files changed, 72 insertions, 0 deletions
diff --git a/testing/wpa_actiond/wait-for-three-failed-PONGs-before-disco.patch b/testing/wpa_actiond/wait-for-three-failed-PONGs-before-disco.patch
new file mode 100644
index 00000000000..3e0f22b68ad
--- /dev/null
+++ b/testing/wpa_actiond/wait-for-three-failed-PONGs-before-disco.patch
@@ -0,0 +1,72 @@
+From 8b74c8b3f69e501560e5f0c25cbcbc4aefcbc0ed Mon Sep 17 00:00:00 2001
+From: Emil Velikov <emil.l.velikov@gmail.com>
+Date: Mon, 21 Aug 2017 11:34:00 +0200
+Subject: [PATCH] wpa_actiond: Wait for three "failed" PONGs before
+ disconnecting
+
+When the system is very low on resources, select() may return 0 even
+when wpa_supplicant is alive and kicking.
+
+Don't disconnect as soon at that occurs - wait three times and clearly
+log it.
+
+Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
+---
+ wpa_actiond.c | 11 +++++++++++
+ 1 file changed, 11 insertions(+)
+
+diff --git a/wpa_actiond.c b/wpa_actiond.c
+index d60d885..03a9d7f 100644
+--- a/wpa_actiond.c
++++ b/wpa_actiond.c
+@@ -292,6 +292,7 @@ static void loop(const char *iface, const char *ctrlpath, const int disconnect_t
+   /* path to control socket */
+   char *ctrlsock = NULL;
+   int ctrlsocklen;
++  int pong_failures = 0;
+ 
+   ssid[0] = '\0';
+   old_ssid[0] = '\0';
+@@ -359,6 +360,7 @@ static void loop(const char *iface, const char *ctrlpath, const int disconnect_t
+         }
+         logevent(WPA_ACTIOND_LOG_TERMINATE, iface, "");
+         state = WPA_ACTIOND_STATE_TERMINATED;
++        pong_failures = 0;
+         break;
+       case 0:
+         if (state == WPA_ACTIOND_STATE_CONNECTION_LOST) {
+@@ -372,8 +374,15 @@ static void loop(const char *iface, const char *ctrlpath, const int disconnect_t
+             reply_len = 0;
+           reply[reply_len] = '\0';
+           if(!str_match(reply, "PONG")) {
++            if (pong_failures <= 3) {
++              logevent(WPA_ACTIOND_LOG_CUSTOM_ERROR, iface, "wpa_supplicant failed to reply (PONG)");
++              pong_failures++;
++              break;
++            }
++
+             /* supplicant has been terminated */
+             if(state == WPA_ACTIOND_STATE_CONNECTED || state == WPA_ACTIOND_STATE_CONNECTION_LOST) {
++              logevent(WPA_ACTIOND_LOG_CUSTOM_ERROR, iface, "wpa_supplicant failed to reply three times in a row - disconnecting");
+               logevent(WPA_ACTIOND_LOG_DISCONNECTED, iface, ssid);
+               action(WPA_ACTIOND_ACTION_DISCONNECT, iface, ssid, idstr, wpa_ctrl_get_fd(ctrl), script);
+             }
+@@ -381,6 +390,7 @@ static void loop(const char *iface, const char *ctrlpath, const int disconnect_t
+             state = WPA_ACTIOND_STATE_TERMINATED;
+           }
+         }
++        pong_failures = 0;
+         break;
+       default:
+         /* event received */
+@@ -446,6 +456,7 @@ static void loop(const char *iface, const char *ctrlpath, const int disconnect_t
+             /* we are not interested in this event */
+             break;
+         }
++        pong_failures = 0;
+     }
+   }
+ 
+-- 
+2.15.0
+