+++ /dev/null
---- a/drivers/char/random.c
-+++ b/drivers/char/random.c
-@@ -139,6 +139,9 @@
- * that might otherwise be identical and have very little entropy
- * available to them (particularly common in the embedded world).
- *
-+ * void random_input_words(__u32 *buf, size_t wordcount, int ent_count)
-+ * int random_input_wait(void);
-+ *
- * add_input_randomness() uses the input layer interrupt timing, as well as
- * the event type information from the hardware.
- *
-@@ -152,6 +155,13 @@
- * seek times do not make for good sources of entropy, as their seek
- * times are usually fairly consistent.
- *
-+ * random_input_words() just provides a raw block of entropy to the input
-+ * pool, such as from a hardware entropy generator.
-+ *
-+ * random_input_wait() suspends the caller until such time as the
-+ * entropy pool falls below the write threshold, and returns a count of how
-+ * much entropy (in bits) is needed to sustain the pool.
-+ *
- * All of these routines try to estimate how many bits of randomness a
- * particular randomness source. They do this by keeping track of the
- * first and second order deltas of the event timings.
-@@ -796,6 +806,63 @@ void add_disk_randomness(struct gendisk
- }
- #endif
-
-+/*
-+ * 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)
-+{
-+ mix_pool_bytes(&input_pool, buf, wordcount*4, NULL);
-+
-+ credit_entropy_bits(&input_pool, ent_count);
-+
-+ DEBUG_ENT("crediting %d bits => %d\n",
-+ ent_count, input_pool.entropy_count);
-+ /*
-+ * Wake up waiting processes if we have enough
-+ * entropy.
-+ */
-+ if (input_pool.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;
-+
-+ wait_event_interruptible(random_write_wait,
-+ input_pool.entropy_count < random_write_wakeup_thresh);
-+
-+ count = random_write_wakeup_thresh - input_pool.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,
-+ input_pool.entropy_count, random_write_wakeup_thresh);
-+
-+ return count;
-+}
-+EXPORT_SYMBOL(random_input_wait);
-+
-+
-+#define EXTRACT_SIZE 10
-+
- /*********************************************************************
- *
- * Entropy extraction routines
---- a/fs/fcntl.c
-+++ b/fs/fcntl.c
-@@ -148,6 +148,7 @@ pid_t f_getown(struct file *filp)
- read_unlock(&filp->f_owner.lock);
- return pid;
- }
-+EXPORT_SYMBOL(sys_dup);
-
- static int f_setown_ex(struct file *filp, unsigned long arg)
- {
---- a/include/linux/miscdevice.h
-+++ b/include/linux/miscdevice.h
-@@ -19,6 +19,7 @@
- #define APOLLO_MOUSE_MINOR 7
- #define PC110PAD_MINOR 9
- /*#define ADB_MOUSE_MINOR 10 FIXME OBSOLETE */
-+#define CRYPTODEV_MINOR 70 /* /dev/crypto */
- #define WATCHDOG_MINOR 130 /* Watchdog timer */
- #define TEMP_MINOR 131 /* Temperature Sensor */
- #define RTC_MINOR 135
---- a/include/uapi/linux/random.h
-+++ b/include/uapi/linux/random.h
-@@ -34,6 +34,30 @@
- /* Clear the entropy pool and associated counters. (Superuser only.) */
- #define RNDCLEARPOOL _IO( 'R', 0x06 )
-
-+#ifdef CONFIG_FIPS_RNG
-+
-+/* Size of seed value - equal to AES blocksize */
-+#define AES_BLOCK_SIZE_BYTES 16
-+#define SEED_SIZE_BYTES AES_BLOCK_SIZE_BYTES
-+/* Size of AES key */
-+#define KEY_SIZE_BYTES 16
-+
-+/* ioctl() structure used by FIPS 140-2 Tests */
-+struct rand_fips_test {
-+ unsigned char key[KEY_SIZE_BYTES]; /* Input */
-+ unsigned char datetime[SEED_SIZE_BYTES]; /* Input */
-+ unsigned char seed[SEED_SIZE_BYTES]; /* Input */
-+ unsigned char result[SEED_SIZE_BYTES]; /* Output */
-+};
-+
-+/* FIPS 140-2 RNG Variable Seed Test. (Superuser only.) */
-+#define RNDFIPSVST _IOWR('R', 0x10, struct rand_fips_test)
-+
-+/* FIPS 140-2 RNG Monte Carlo Test. (Superuser only.) */
-+#define RNDFIPSMCT _IOWR('R', 0x11, struct rand_fips_test)
-+
-+#endif /* #ifdef CONFIG_FIPS_RNG */
-+
- struct rand_pool_info {
- int entropy_count;
- int buf_size;
---- a/include/linux/random.h
-+++ b/include/linux/random.h
-@@ -14,6 +14,10 @@ extern void add_input_randomness(unsigne
- unsigned int value);
- extern void add_interrupt_randomness(int irq, int irq_flags);
-
-+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);
- extern void get_random_bytes_arch(void *buf, int nbytes);
- void generate_random_uuid(unsigned char uuid_out[16]);
---- a/kernel/pid.c
-+++ b/kernel/pid.c
-@@ -423,6 +423,7 @@ void transfer_pid(struct task_struct *ol
- new->pids[type].pid = old->pids[type].pid;
- hlist_replace_rcu(&old->pids[type].node, &new->pids[type].node);
- }
-+EXPORT_SYMBOL(find_task_by_vpid);
-
- struct task_struct *pid_task(struct pid *pid, enum pid_type type)
- {
projects / openwrt / svn-archive / archive.git / blobdiff