--- a/src/crypto/random.c
+++ b/src/crypto/random.c
-@@ -48,6 +48,8 @@
+@@ -38,6 +38,8 @@
+ #include "sha1.h"
+ #include "random.h"
+
++#define RANDOM_STAMPFILE "/var/run/.random_available"
++
+ #define POOL_WORDS 32
+ #define POOL_WORDS_MASK (POOL_WORDS - 1)
+ #define POOL_TAP1 26
+@@ -48,6 +50,8 @@
#define EXTRACT_LEN 16
#define MIN_READY_MARK 2
static u32 pool[POOL_WORDS];
static unsigned int input_rotate = 0;
static unsigned int pool_pos = 0;
-@@ -122,7 +124,7 @@ static void random_extract(u8 *out)
+@@ -128,7 +132,7 @@ static void random_extract(u8 *out)
}
{
struct os_time t;
static unsigned int count = 0;
-@@ -335,3 +337,22 @@ void random_deinit(void)
- random_close_fd();
- #endif /* __linux__ */
+@@ -197,16 +201,22 @@ int random_get_bytes(void *buf, size_t l
+ int random_pool_ready(void)
+ {
+ #ifdef __linux__
++ struct stat st;
+ int fd;
+ ssize_t res;
+
++ if (stat(RANDOM_STAMPFILE, &st) == 0)
++ return 1;
++
+ /*
+ * Make sure that there is reasonable entropy available before allowing
+ * some key derivation operations to proceed.
+ */
+
+- if (dummy_key_avail == sizeof(dummy_key))
++ if (dummy_key_avail == sizeof(dummy_key)) {
++ random_mark_pool_ready();
+ return 1; /* Already initialized - good to continue */
++ }
+
+ /*
+ * Try to fetch some more data from the kernel high quality
+@@ -241,6 +251,7 @@ int random_pool_ready(void)
+ if (dummy_key_avail == sizeof(dummy_key)) {
+ if (own_pool_ready < MIN_READY_MARK)
+ own_pool_ready = MIN_READY_MARK;
++ random_mark_pool_ready();
+ random_write_entropy();
+ return 1;
+ }
+@@ -253,6 +264,7 @@ int random_pool_ready(void)
+ total_collected + 10 * own_pool_ready > MIN_COLLECT_ENTROPY) {
+ wpa_printf(MSG_INFO, "random: Allow operation to proceed "
+ "based on internal entropy");
++ random_mark_pool_ready();
+ return 1;
+ }
+
+@@ -268,10 +280,16 @@ int random_pool_ready(void)
+
+ void random_mark_pool_ready(void)
+ {
++ int fd;
++
+ own_pool_ready++;
+ wpa_printf(MSG_DEBUG, "random: Mark internal entropy pool to be "
+ "ready (count=%u/%u)", own_pool_ready, MIN_READY_MARK);
+ random_write_entropy();
++
++ fd = open(RANDOM_STAMPFILE, O_CREAT | O_WRONLY | O_EXCL | O_NOFOLLOW, 0600);
++ if (fd >= 0)
++ close(fd);
+ }
+
+
+@@ -428,3 +446,22 @@ void random_deinit(void)
+ os_free(random_entropy_file);
+ random_entropy_file = NULL;
}
+
+#endif /* CONFIG_NO_RANDOM_POOL */
+ random_pool_add_randomness(buf, len);
+#endif
+}
---- a/hostapd/Makefile
-+++ b/hostapd/Makefile
-@@ -698,11 +698,11 @@ endif
- ifdef CONFIG_NO_RANDOM_POOL
- CFLAGS += -DCONFIG_NO_RANDOM_POOL
- else
--OBJS += ../src/crypto/random.o
--HOBJS += ../src/crypto/random.o
- HOBJS += $(SHA1OBJS)
- HOBJS += ../src/crypto/md5.o
- endif
-+OBJS += ../src/crypto/random.o
-+HOBJS += ../src/crypto/random.o
-
- ifdef CONFIG_RADIUS_SERVER
- CFLAGS += -DRADIUS_SERVER
--- a/wpa_supplicant/Makefile
+++ b/wpa_supplicant/Makefile
-@@ -1101,9 +1101,8 @@ endif
+@@ -1137,9 +1137,8 @@ endif
ifdef CONFIG_NO_RANDOM_POOL
CFLAGS += -DCONFIG_NO_RANDOM_POOL
ifeq ($(CONFIG_CTRL_IFACE), y)
--- a/wpa_supplicant/Android.mk
+++ b/wpa_supplicant/Android.mk
-@@ -1102,9 +1102,8 @@ endif
+@@ -1132,9 +1132,8 @@ endif
ifdef CONFIG_NO_RANDOM_POOL
L_CFLAGS += -DCONFIG_NO_RANDOM_POOL
ifeq ($(CONFIG_CTRL_IFACE), y)
--- a/hostapd/Android.mk
+++ b/hostapd/Android.mk
-@@ -717,11 +717,11 @@ endif
+@@ -720,11 +720,11 @@ endif
ifdef CONFIG_NO_RANDOM_POOL
L_CFLAGS += -DCONFIG_NO_RANDOM_POOL
else
ifdef CONFIG_RADIUS_SERVER
L_CFLAGS += -DRADIUS_SERVER
---- a/src/crypto/random.h
-+++ b/src/crypto/random.h
-@@ -18,17 +18,16 @@
- #ifdef CONFIG_NO_RANDOM_POOL
- #define random_init() do { } while (0)
- #define random_deinit() do { } while (0)
--#define random_add_randomness(b, l) do { } while (0)
- #define random_get_bytes(b, l) os_get_random((b), (l))
- #define random_pool_ready() 1
- #define random_mark_pool_ready() do { } while (0)
- #else /* CONFIG_NO_RANDOM_POOL */
- void random_init(void);
- void random_deinit(void);
--void random_add_randomness(const void *buf, size_t len);
- int random_get_bytes(void *buf, size_t len);
- int random_pool_ready(void);
- void random_mark_pool_ready(void);
- #endif /* CONFIG_NO_RANDOM_POOL */
-+void random_add_randomness(const void *buf, size_t len);
-
- #endif /* RANDOM_H */
+--- a/hostapd/Makefile
++++ b/hostapd/Makefile
+@@ -707,12 +707,12 @@ endif
+ ifdef CONFIG_NO_RANDOM_POOL
+ CFLAGS += -DCONFIG_NO_RANDOM_POOL
+ else
+-OBJS += ../src/crypto/random.o
+-HOBJS += ../src/crypto/random.o
+ HOBJS += ../src/utils/eloop.o
+ HOBJS += $(SHA1OBJS)
+ HOBJS += ../src/crypto/md5.o
+ endif
++OBJS += ../src/crypto/random.o
++HOBJS += ../src/crypto/random.o
+
+ ifdef CONFIG_RADIUS_SERVER
+ CFLAGS += -DRADIUS_SERVER