mirror of
git://projects.qi-hardware.com/openwrt-xburst.git
synced 2024-11-15 09:38:28 +02:00
ea6674d9de
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@21357 3c298f89-4303-0410-b956-a3cf2f4a3e73
121 lines
3.5 KiB
Diff
121 lines
3.5 KiB
Diff
--- a/drivers/char/random.c
|
|
+++ b/drivers/char/random.c
|
|
@@ -901,6 +901,65 @@ void add_blkdev_randomness(int major)
|
|
#define subRound(a, b, c, d, e, f, k, data) \
|
|
( e += ROTL( 5, a ) + f( b, c, d ) + k + data, b = ROTL( 30, b ) )
|
|
|
|
+/*
|
|
+ * random_input_words - add bulk entropy to pool
|
|
+ *
|
|
+ * @buf: buffer to add
|
|
+ * @wordcount: number of __u32 words to add
|
|
+ * @ent_count: total amount of entropy (in bits) to credit
|
|
+ *
|
|
+ * this provides bulk input of entropy to the input pool
|
|
+ *
|
|
+ */
|
|
+void random_input_words(__u32 *buf, size_t wordcount, int ent_count)
|
|
+{
|
|
+ if (!random_state)
|
|
+ return;
|
|
+ add_entropy_words(random_state, buf, wordcount);
|
|
+
|
|
+ credit_entropy_store(random_state, ent_count);
|
|
+
|
|
+ DEBUG_ENT("credited %d bits => %d\n",
|
|
+ ent_count, random_state->entropy_count);
|
|
+ /*
|
|
+ * Wake up waiting processes if we have enough
|
|
+ * entropy.
|
|
+ */
|
|
+ if (random_state->entropy_count >= random_read_wakeup_thresh)
|
|
+ wake_up_interruptible(&random_read_wait);
|
|
+}
|
|
+EXPORT_SYMBOL(random_input_words);
|
|
+
|
|
+/*
|
|
+ * random_input_wait - wait until random needs entropy
|
|
+ *
|
|
+ * this function sleeps until the /dev/random subsystem actually
|
|
+ * needs more entropy, and then return the amount of entropy
|
|
+ * that it would be nice to have added to the system.
|
|
+ */
|
|
+int random_input_wait(void)
|
|
+{
|
|
+ int count;
|
|
+
|
|
+ if (!random_state)
|
|
+ return -1;
|
|
+
|
|
+ wait_event_interruptible(random_write_wait,
|
|
+ random_state->entropy_count < random_write_wakeup_thresh);
|
|
+
|
|
+ count = random_write_wakeup_thresh - random_state->entropy_count;
|
|
+
|
|
+ /* likely we got woken up due to a signal */
|
|
+ if (count <= 0) count = random_read_wakeup_thresh;
|
|
+
|
|
+ DEBUG_ENT("requesting %d bits from input_wait()er %d<%d\n",
|
|
+ count,
|
|
+ random_state->entropy_count, random_write_wakeup_thresh);
|
|
+
|
|
+ return count;
|
|
+}
|
|
+EXPORT_SYMBOL(random_input_wait);
|
|
+
|
|
|
|
static void SHATransform(__u32 digest[85], __u32 const data[16])
|
|
{
|
|
--- a/fs/Makefile
|
|
+++ b/fs/Makefile
|
|
@@ -10,6 +10,8 @@ O_TARGET := fs.o
|
|
export-objs := filesystems.o open.o dcache.o buffer.o dquot.o
|
|
mod-subdirs := nls
|
|
|
|
+export-objs += fcntl.o
|
|
+
|
|
obj-y := open.o read_write.o devices.o file_table.o buffer.o \
|
|
super.o block_dev.o char_dev.o stat.o exec.o pipe.o namei.o \
|
|
fcntl.o ioctl.o readdir.o select.o fifo.o locks.o \
|
|
--- a/fs/fcntl.c
|
|
+++ b/fs/fcntl.c
|
|
@@ -12,6 +12,7 @@
|
|
#include <linux/slab.h>
|
|
#include <linux/iobuf.h>
|
|
#include <linux/ptrace.h>
|
|
+#include <linux/module.h>
|
|
|
|
#include <asm/poll.h>
|
|
#include <asm/siginfo.h>
|
|
@@ -199,6 +200,7 @@ asmlinkage long sys_dup(unsigned int fil
|
|
ret = dupfd(file, 0);
|
|
return ret;
|
|
}
|
|
+EXPORT_SYMBOL(sys_dup);
|
|
|
|
#define SETFL_MASK (O_APPEND | O_NONBLOCK | O_NDELAY | FASYNC | O_DIRECT)
|
|
|
|
--- a/include/linux/miscdevice.h
|
|
+++ b/include/linux/miscdevice.h
|
|
@@ -15,6 +15,7 @@
|
|
#define ADB_MOUSE_MINOR 10
|
|
#define MK712_MINOR 15 /* MK712 touch screen */
|
|
#define SYNTH_MINOR 25
|
|
+#define CRYPTODEV_MINOR 70 /* OpenBSD cryptographic framework */
|
|
#define WATCHDOG_MINOR 130 /* Watchdog timer */
|
|
#define TEMP_MINOR 131 /* Temperature Sensor */
|
|
#define RTC_MINOR 135
|
|
--- a/include/linux/random.h
|
|
+++ b/include/linux/random.h
|
|
@@ -53,6 +53,10 @@ extern void add_mouse_randomness(__u32 m
|
|
extern void add_interrupt_randomness(int irq);
|
|
extern void add_blkdev_randomness(int major);
|
|
|
|
+extern void random_input_words(__u32 *buf, size_t wordcount, int ent_count);
|
|
+extern int random_input_wait(void);
|
|
+#define HAS_RANDOM_INPUT_WAIT 1
|
|
+
|
|
extern void get_random_bytes(void *buf, int nbytes);
|
|
void generate_random_uuid(unsigned char uuid_out[16]);
|
|
|