diff options
Diffstat (limited to 'package/hostapd/patches/500-random_pool_add_kernel.patch')
| -rw-r--r-- | package/hostapd/patches/500-random_pool_add_kernel.patch | 168 |
1 files changed, 168 insertions, 0 deletions
diff --git a/package/hostapd/patches/500-random_pool_add_kernel.patch b/package/hostapd/patches/500-random_pool_add_kernel.patch new file mode 100644 index 000000000..e54e881d8 --- /dev/null +++ b/package/hostapd/patches/500-random_pool_add_kernel.patch @@ -0,0 +1,168 @@ +--- a/src/crypto/random.c ++++ b/src/crypto/random.c +@@ -33,6 +33,8 @@ + #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 +@@ -43,6 +45,8 @@ + #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; +@@ -123,7 +127,7 @@ 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; +@@ -213,16 +217,22 @@ 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 +@@ -257,6 +267,7 @@ 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; + } +@@ -269,6 +280,7 @@ 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; + } + +@@ -284,10 +296,16 @@ 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); + } + + +@@ -444,3 +462,22 @@ void random_deinit(void) + os_free(random_entropy_file); + random_entropy_file = NULL; + } ++ ++#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/wpa_supplicant/Makefile ++++ b/wpa_supplicant/Makefile +@@ -1217,9 +1217,8 @@ 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 ($(CONFIG_CTRL_IFACE), y) +--- a/wpa_supplicant/Android.mk ++++ b/wpa_supplicant/Android.mk +@@ -1161,9 +1161,8 @@ endif + + ifdef CONFIG_NO_RANDOM_POOL + L_CFLAGS += -DCONFIG_NO_RANDOM_POOL +-else +-OBJS += src/crypto/random.c + endif ++OBJS += src/crypto/random.c + + ifdef CONFIG_CTRL_IFACE + ifeq ($(CONFIG_CTRL_IFACE), y) +--- a/hostapd/Android.mk ++++ b/hostapd/Android.mk +@@ -748,11 +748,11 @@ 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/hostapd/Makefile ++++ b/hostapd/Makefile +@@ -755,12 +755,12 @@ 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 |