Displaying 4 results from an estimated 4 matches for "hwrng_attr_seed_stor".
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hwrng_attr_seed_store
2014 Jul 09
2
[PATCH v2 1/2] hwrng: fetch randomness only after device init
On Wed, Jul 09, 2014 at 06:38:22PM +0530, Amit Shah wrote:
> On (Wed) 09 Jul 2014 [07:53:17], Jason Cooper wrote:
> > On Sat, Jul 05, 2014 at 11:04:52AM +0530, Amit Shah wrote:
> > > Commit d9e7972619334 "hwrng: add randomness to system from rng sources"
> > > added a call to rng_get_data() from the hwrng_register() function.
> > > However, some rng
2014 Jul 09
2
[PATCH v2 1/2] hwrng: fetch randomness only after device init
On Wed, Jul 09, 2014 at 06:38:22PM +0530, Amit Shah wrote:
> On (Wed) 09 Jul 2014 [07:53:17], Jason Cooper wrote:
> > On Sat, Jul 05, 2014 at 11:04:52AM +0530, Amit Shah wrote:
> > > Commit d9e7972619334 "hwrng: add randomness to system from rng sources"
> > > added a call to rng_get_data() from the hwrng_register() function.
> > > However, some rng
2014 Jul 09
2
[RFC PATCH] hwrng: sysfs entry rng_seed_kernel, was: "Re: [PATCH v2 1/2] hwrng: fetch randomness only after device init"
...return ret;
}
+/*
+ * seed the kernel's entropy pool from the current hwrng.
+ *
+ * 'echo "n" >rng_seed_kernel', where n >= 0.
+ * n = 0: default size added (16 bytes)
+ * 0 < n <= 256: n bytes added.
+ * n > 256: 256 bytes added.
+ */
+static ssize_t hwrng_attr_seed_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t len)
+{
+ int err;
+ u8 sz;
+
+ if (!current_rng)
+ return -ENODEV;
+
+ err = kstrtou8(buf, 10, &sz);
+ if (err)
+ return err;
+
+ err = mutex_lock_interruptible(&rng_mutex);
+ if (err)
+ ret...
2014 Jul 09
2
[RFC PATCH] hwrng: sysfs entry rng_seed_kernel, was: "Re: [PATCH v2 1/2] hwrng: fetch randomness only after device init"
...return ret;
}
+/*
+ * seed the kernel's entropy pool from the current hwrng.
+ *
+ * 'echo "n" >rng_seed_kernel', where n >= 0.
+ * n = 0: default size added (16 bytes)
+ * 0 < n <= 256: n bytes added.
+ * n > 256: 256 bytes added.
+ */
+static ssize_t hwrng_attr_seed_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t len)
+{
+ int err;
+ u8 sz;
+
+ if (!current_rng)
+ return -ENODEV;
+
+ err = kstrtou8(buf, 10, &sz);
+ if (err)
+ return err;
+
+ err = mutex_lock_interruptible(&rng_mutex);
+ if (err)
+ ret...