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hostapd: make entropy collection contribute to the kernel pool

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SVN-Revision: 26272
This commit is contained in:
Felix Fietkau
2011-03-22 21:00:54 +00:00
parent 771d6f18f6
commit 85b859a2b6
2 changed files with 120 additions and 47 deletions
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120
package/hostapd/patches/700-random_pool_add_kernel.patch Normal file
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@@ -0,0 +1,120 @@
--- a/src/crypto/random.c
+++ b/src/crypto/random.c
@@ -47,6 +47,8 @@
#define EXTRACT_LEN 16
#define MIN_READY_MARK 2
+#ifndef CONFIG_NO_RANDOM_POOL
+
static u32 pool[POOL_WORDS];
static unsigned int input_rotate = 0;
static unsigned int pool_pos = 0;
@@ -120,7 +122,7 @@ static void random_extract(u8 *out)
}
-void random_add_randomness(const void *buf, size_t len)
+static void random_pool_add_randomness(const void *buf, size_t len)
{
struct os_time t;
static unsigned int count = 0;
@@ -260,3 +262,22 @@ void random_mark_pool_ready(void)
wpa_printf(MSG_DEBUG, "random: Mark internal entropy pool to be "
"ready (count=%u/%u)", own_pool_ready, MIN_READY_MARK);
}
+
+#endif /* CONFIG_NO_RANDOM_POOL */
+
+
+void random_add_randomness(const void *buf, size_t len)
+{
+#ifdef __linux__
+ int fd;
+
+ fd = open("/dev/random", O_RDWR);
+ if (fd >= 0) {
+ write(fd, buf, len);
+ close(fd);
+ }
+#endif
+#ifndef 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 += $(SHA1OBJS)
HOBJS += ../src/crypto/md5.o
endif
+OBJS += ../src/crypto/random.o
+HOBJS += ../src/crypto/random.o
ifdef CONFIG_RADIUS_SERVER
CFLAGS += -DRADIUS_SERVER
--- a/wpa_supplicant/Makefile
+++ b/wpa_supplicant/Makefile
@@ -1101,9 +1101,8 @@ endif
ifdef CONFIG_NO_RANDOM_POOL
CFLAGS += -DCONFIG_NO_RANDOM_POOL
-else
-OBJS += ../src/crypto/random.o
endif
+OBJS += ../src/crypto/random.o
ifdef CONFIG_CTRL_IFACE
ifeq ($(CONFIG_CTRL_IFACE), y)
--- a/wpa_supplicant/Android.mk
+++ b/wpa_supplicant/Android.mk
@@ -1102,9 +1102,8 @@ endif
ifdef CONFIG_NO_RANDOM_POOL
L_CFLAGS += -DCONFIG_NO_RANDOM_POOL
-else
-OBJS += src/crypto/random.c
endif
+OBJS += src/crypto/random.c
ifdef CONFIG_CTRL_IFACE
ifeq ($(CONFIG_CTRL_IFACE), y)
--- a/hostapd/Android.mk
+++ b/hostapd/Android.mk
@@ -717,11 +717,11 @@ endif
ifdef CONFIG_NO_RANDOM_POOL
L_CFLAGS += -DCONFIG_NO_RANDOM_POOL
else
-OBJS += src/crypto/random.c
-HOBJS += src/crypto/random.c
HOBJS += $(SHA1OBJS)
HOBJS += src/crypto/md5.c
endif
+OBJS += src/crypto/random.c
+HOBJS += src/crypto/random.c
ifdef CONFIG_RADIUS_SERVER
L_CFLAGS += -DRADIUS_SERVER
--- a/src/crypto/random.h
+++ b/src/crypto/random.h
@@ -16,15 +16,14 @@
#define RANDOM_H
#ifdef CONFIG_NO_RANDOM_POOL
-#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_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 */