From 4476475e2c69d7eedb7cf28a0f053c83f701b83b Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@openwrt.org>
Date: Sat, 2 Apr 2011 19:44:51 +0000
Subject: hostapd: write a stampfile when the random pool has been initialized
- fixes rejected assoc attempts after hostapd restart
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@26415 3c298f89-4303-0410-b956-a3cf2f4a3e73
---
.../patches/700-random_pool_add_kernel.patch | 45 ++++++++++++++++++++--
1 file changed, 42 insertions(+), 3 deletions(-)
diff --git a/package/hostapd/patches/700-random_pool_add_kernel.patch b/package/hostapd/patches/700-random_pool_add_kernel.patch
index 8475ac6234..8ba40e5deb 100644
--- a/package/hostapd/patches/700-random_pool_add_kernel.patch
+++ b/package/hostapd/patches/700-random_pool_add_kernel.patch
@@ -1,6 +1,15 @@
--- 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
@@ -9,7 +18,7 @@
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)
+@@ -122,7 +126,7 @@ static void random_extract(u8 *out)
}
@@ -18,7 +27,37 @@
{
struct os_time t;
static unsigned int count = 0;
-@@ -335,3 +337,22 @@ void random_deinit(void)
+@@ -191,9 +195,13 @@ 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.
+@@ -258,9 +266,15 @@ 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);
++
++ fd = open(RANDOM_STAMPFILE, O_CREAT | O_WRONLY | O_EXCL | O_NOFOLLOW, 0600);
++ if (fd >= 0)
++ close(fd);
+ }
+
+
+@@ -335,3 +349,22 @@ void random_deinit(void)
random_close_fd();
#endif /* __linux__ */
}
--
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