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wpa_supplicant is started from /init.*.rc on Android and that seems
to be using umask 0077 which would leave the control interface
directory without group access. This breaks things since Wi-Fi
framework assumes that this directory can be accessed by other
applications in the wifi group. Fix this by adding group access even
if umask value would prevent this.

Signed-hostap: Pontus Fuchs <pontus.fuchs at gmail.com>
---
 hostapd/ctrl_iface.c |   15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/hostapd/ctrl_iface.c b/hostapd/ctrl_iface.c
index 1d4fe0d..bd16b17 100644
--- a/hostapd/ctrl_iface.c
+++ b/hostapd/ctrl_iface.c
@@ -1003,6 +1003,21 @@ int hostapd_ctrl_iface_init(struct hostapd_data *hapd)
 		return -1;
 	}
 
+#ifdef ANDROID
+	/*
+	 * Android is using umask 0077 which would leave the control interface
+	 * directory without group access. This breaks things since Wi-Fi
+	 * framework assumes that this directory can be accessed by other
+	 * applications in the wifi group. Fix this by adding group access even
+	 * if umask value would prevent this.
+	 */
+	if (chmod(hapd->conf->ctrl_interface, S_IRWXU | S_IRWXG) < 0) {
+		wpa_printf(MSG_ERROR, "CTRL: Could not chmod directory: %s",
+			   strerror(errno));
+		/* Try to continue anyway */
+	}
+#endif /* ANDROID */
+
 	if (os_strlen(hapd->conf->ctrl_interface) + 1 +
 	    os_strlen(hapd->conf->iface) >= sizeof(addr.sun_path))
 		goto fail;
-- 
1.7.10.4