Linus Torvalds 52f6c588c7 Add wait_for_random_bytes() and get_random_*_wait() functions so that ... callers can more safely get random bytes if they can block until the CRNG is initialized. Also print a warning if get_random_*() is called before the CRNG is initialized. By default, only one single-line warning will be printed per boot. If CONFIG_WARN_ALL_UNSEEDED_RANDOM is defined, then a warning will be printed for each function which tries to get random bytes before the CRNG is initialized. This can get spammy for certain architecture types, so it is not enabled by default. -----BEGIN PGP SIGNATURE----- iQEzBAABCAAdFiEEK2m5VNv+CHkogTfJ8vlZVpUNgaMFAllqXNUACgkQ8vlZVpUN gaPtAgf/aUbXZuWYsDQzslHsbzEWi+qz4QgL885/w4L00pEImTTp91Q06SDxWhtB KPvGnZHS3IofxBh2DC+6AwN6dPMoWDCfYhhO6po3FSz0DiPRIQCTuvOb8fhKY1X7 rTdDq2xtDxPGxJ25bMJtlrgzH2XlXPpVyPUeoc9uh87zUK5aesXpUn9kBniRexoz ume+M/cDzPKkwNQpbLq8vzhNjoWMVv0FeW2akVvrjkkWko8nZLZ0R/kIyKQlRPdG LZDXcz0oTHpDS6+ufEo292ZuWm2IGer2YtwHsKyCAsyEWsUqBz2yurtkSj3mAVyC hHafyS+5WNaGdgBmg0zJxxwn5qxxLg== =ua7p -----END PGP SIGNATURE----- Merge tag 'random_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/random Pull random updates from Ted Ts'o: "Add wait_for_random_bytes() and get_random_*_wait() functions so that callers can more safely get random bytes if they can block until the CRNG is initialized. Also print a warning if get_random_*() is called before the CRNG is initialized. By default, only one single-line warning will be printed per boot. If CONFIG_WARN_ALL_UNSEEDED_RANDOM is defined, then a warning will be printed for each function which tries to get random bytes before the CRNG is initialized. This can get spammy for certain architecture types, so it is not enabled by default" * tag 'random_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/random: random: reorder READ_ONCE() in get_random_uXX random: suppress spammy warnings about unseeded randomness random: warn when kernel uses unseeded randomness net/route: use get_random_int for random counter net/neighbor: use get_random_u32 for 32-bit hash random rhashtable: use get_random_u32 for hash_rnd ceph: ensure RNG is seeded before using iscsi: ensure RNG is seeded before use cifs: use get_random_u32 for 32-bit lock random random: add get_random_{bytes,u32,u64,int,long,once}_wait family random: add wait_for_random_bytes() API		2017-07-15 12:44:02 -07:00
..
842	…
fonts	lib/fonts/Kconfig: keep non-Sparc fonts listed together	2017-02-27 18:43:46 -08:00
lz4	lib/lz4: remove back-compat wrappers	2017-02-24 17:46:57 -08:00
lzo	…
mpi	…
raid6	lib/raid6: Add log-of-2 table for RAID6 HW requiring disk position	2017-05-16 10:01:57 +05:30
reed_solomon	…
xz	…
zlib_deflate	…
zlib_inflate	lib/zlib_inflate/inftrees.c: fix potential buffer overflow	2017-05-08 17:15:12 -07:00
.gitignore	…
Kconfig	libnvdimm for 4.13	2017-07-07 09:44:06 -07:00
Kconfig.debug	Add wait_for_random_bytes() and get_random_*_wait() functions so that	2017-07-15 12:44:02 -07:00
Kconfig.kasan	…
Kconfig.kgdb	lib: update location of kgdb documentation	2017-05-16 08:44:22 -03:00
Kconfig.kmemcheck	…
Kconfig.ubsan	…
Makefile	kmod: add test driver to stress test the module loader	2017-07-14 15:05:13 -07:00
argv_split.c	…
asn1_decoder.c	…
assoc_array.c	…
atomic64.c	…
atomic64_test.c	lib/atomic64_test.c: add a test that atomic64_inc_not_zero() returns an int	2017-07-14 15:05:13 -07:00
audit.c	…
bcd.c	…
bch.c	…
bitmap.c	bitmap: optimise bitmap_set and bitmap_clear of a single bit	2017-07-10 16:32:34 -07:00
bitrev.c	…
bsearch.c	lib/bsearch.c: micro-optimize pivot position calculation	2017-07-10 16:32:35 -07:00
btree.c	…
bug.c	debug: Add _ONCE() logic to report_bug()	2017-03-30 09:37:20 +02:00
build_OID_registry	…
bust_spinlocks.c	…
chacha20.c	…
check_signature.c	…
checksum.c	…
clz_ctz.c	…
clz_tab.c	…
cmdline.c	lib/cmdline.c: fix get_options() overflow while parsing ranges	2017-06-23 16:15:55 -07:00
compat_audit.c	…
cordic.c	…
cpu_rmap.c	…
cpumask.c	sched/fair, cpumask: Export for_each_cpu_wrap()	2017-05-15 10:15:23 +02:00
crc-ccitt.c	…
crc-itu-t.c	…
crc-t10dif.c	…
crc4.c	lib: Add crc4 module	2017-06-09 11:52:07 +02:00
crc7.c	…
crc8.c	…
crc16.c	…
crc32.c	lib: add module support to crc32 tests	2017-02-24 17:46:57 -08:00
crc32defs.h	…
crc32test.c	lib: add module support to crc32 tests	2017-02-24 17:46:57 -08:00
ctype.c	…
debug_info.c	…
debug_locks.c	…
debugobjects.c	sched/headers: Prepare for new header dependencies before moving code to <linux/sched/task_stack.h>	2017-03-02 08:42:36 +01:00
dec_and_lock.c	…
decompress.c	…
decompress_bunzip2.c	…
decompress_inflate.c	…
decompress_unlz4.c	lib/decompress_unlz4: change module to work with new LZ4 module version	2017-02-24 17:46:57 -08:00
decompress_unlzma.c	…
decompress_unlzo.c	…
decompress_unxz.c	…
devres.c	devres: fix devm_ioremap_*() offset parameter kerneldoc description	2017-04-24 13:53:13 -05:00
digsig.c	KEYS: Differentiate uses of rcu_dereference_key() and user_key_payload()	2017-03-02 10:09:00 +11:00
div64.c	…
dma-debug.c	dmaengine updates for 4.12-rc1	2017-05-09 15:40:28 -07:00
dma-noop.c	dma: Take into account dma_pfn_offset	2017-06-28 06:55:01 -07:00
dma-virt.c	dma-virt: remove dma_supported and mapping_error methods	2017-06-28 06:54:41 -07:00
dump_stack.c	sched/headers: Prepare for new header dependencies before moving code to <linux/sched/debug.h>	2017-03-02 08:42:34 +01:00
dynamic_debug.c	…
dynamic_queue_limits.c	…
earlycpio.c	…
errseq.c	lib: add errseq_t type and infrastructure for handling it	2017-07-06 07:02:24 -04:00
extable.c	lib/extable.c: use bsearch() library function in search_extable()	2017-07-10 16:32:35 -07:00
fault-inject.c	fault-inject: simplify access check for fail-nth	2017-07-14 15:05:13 -07:00
fdt.c	…
fdt_empty_tree.c	…
fdt_ro.c	…
fdt_rw.c	…
fdt_strerror.c	…
fdt_sw.c	…
fdt_wip.c	…
find_bit.c	lib/find_bit.c: micro-optimise find_next_*_bit	2017-02-24 17:46:57 -08:00
flex_array.c	…
flex_proportions.c	percpu_counter: Rename __percpu_counter_add to percpu_counter_add_batch	2017-06-20 15:42:32 -04:00
gcd.c	…
gen_crc32table.c	…
genalloc.c	…
glob.c	lib: add module support to glob tests	2017-02-24 17:46:57 -08:00
globtest.c	lib: add module support to glob tests	2017-02-24 17:46:57 -08:00
hexdump.c	…
hweight.c	…
idr.c	…
inflate.c	…
int_sqrt.c	…
interval_tree.c	…
interval_tree_test.c	lib/interval_tree_test.c: allow full tree search	2017-07-10 16:32:35 -07:00
iomap.c	…
iomap_copy.c	…
iommu-common.c	…
iommu-helper.c	…
ioremap.c	mm: convert generic code to 5-level paging	2017-03-09 11:48:47 -08:00
iov_iter.c	Merge branch 'uaccess-work.iov_iter' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2017-07-07 20:39:20 -07:00
irq_poll.c	…
irq_regs.c	…
is_single_threaded.c	sched/headers: Prepare to move 'init_task' and 'init_thread_union' from <linux/sched.h> to <linux/sched/task.h>	2017-03-02 08:42:38 +01:00
jedec_ddr_data.c	…
kasprintf.c	…
kfifo.c	…
klist.c	…
kobject.c	kobject: Export kobject_get_unless_zero()	2017-03-22 20:11:35 -06:00
kobject_uevent.c	kobject: support passing in variables for synthetic uevents	2017-05-25 18:30:51 +02:00
kstrtox.c	lib/kstrtox.c: use "unsigned int" more	2017-07-10 16:32:34 -07:00
kstrtox.h	…
lcm.c	…
libcrc32c.c	crypto: Work around deallocated stack frame reference gcc bug on sparc.	2017-06-08 17:36:03 +08:00
list_debug.c	bug: switch data corruption check to __must_check	2017-02-24 17:46:56 -08:00
list_sort.c	lib: add module support to linked list sorting tests	2017-05-08 17:15:10 -07:00
llist.c	…
locking-selftest-hardirq.h	…
locking-selftest-mutex.h	…
locking-selftest-rlock-hardirq.h	…
locking-selftest-rlock-softirq.h	…
locking-selftest-rlock.h	…
locking-selftest-rsem.h	…
locking-selftest-rtmutex.h	locking/selftest: Add RT-mutex support	2017-06-08 10:35:50 +02:00
locking-selftest-softirq.h	…
locking-selftest-spin-hardirq.h	…
locking-selftest-spin-softirq.h	…
locking-selftest-spin.h	…
locking-selftest-wlock-hardirq.h	…
locking-selftest-wlock-softirq.h	…
locking-selftest-wlock.h	…
locking-selftest-wsem.h	…
locking-selftest.c	locking/selftest: Add RT-mutex support	2017-06-08 10:35:50 +02:00
lockref.c	…
lru_cache.c	…
memory-notifier-error-inject.c	…
memweight.c	…
net_utils.c	…
netdev-notifier-error-inject.c	…
nlattr.c	net: manual clean code which call skb_put_[data:zero]	2017-06-20 13:30:15 -04:00
nmi_backtrace.c	printk: Use the main logbuf in NMI when logbuf_lock is available	2017-05-19 14:42:19 +02:00
nodemask.c	…
notifier-error-inject.c	…
notifier-error-inject.h	…
of-reconfig-notifier-error-inject.c	…
oid_registry.c	…
once.c	…
parman.c	…
parser.c	…
pci_iomap.c	…
percpu-refcount.c	percpu-refcount: support synchronous switch to atomic mode.	2017-03-22 19:18:43 -07:00
percpu_counter.c	writeback: rework wb_[dec|inc]_stat family of functions	2017-07-12 16:26:05 -07:00
percpu_ida.c	sched/headers: Prepare to remove the <linux/gfp.h> include from <linux/sched.h>	2017-03-02 08:42:34 +01:00
percpu_test.c	…
plist.c	sched/headers: Prepare for new header dependencies before moving code to <linux/sched/clock.h>	2017-03-02 08:42:27 +01:00
pm-notifier-error-inject.c	…
prime_numbers.c	…
radix-tree.c	lockdep: allow to disable reclaim lockup detection	2017-05-03 15:52:09 -07:00
random32.c	…
ratelimit.c	…
rational.c	…
rbtree.c	rbtree: use designated initializers	2017-02-24 17:46:57 -08:00
rbtree_test.c	…
reciprocal_div.c	…
refcount.c	locking/refcount: Create unchecked atomic_t implementation	2017-06-28 18:54:46 +02:00
rhashtable.c	Add wait_for_random_bytes() and get_random_*_wait() functions so that	2017-07-15 12:44:02 -07:00
sbitmap.c	sbitmap: add sbitmap_get_shallow() operation	2017-04-14 14:06:52 -06:00
scatterlist.c	scatterlist: add sg_zero_buffer() helper	2017-06-15 14:30:14 +02:00
seq_buf.c	…
sg_pool.c	…
sg_split.c	…
sha1.c	…
show_mem.c	…
siphash.c	…
smp_processor_id.c	sched/core: Enable might_sleep() and smp_processor_id() checks early	2017-05-23 10:01:38 +02:00
sort.c	lib: add CONFIG_TEST_SORT to enable self-test of sort()	2017-02-24 17:46:57 -08:00
stackdepot.c	…
stmp_device.c	…
string.c	include/linux/string.h: add the option of fortified string.h functions	2017-07-12 16:26:03 -07:00
string_helpers.c	…
strncpy_from_user.c	…
strnlen_user.c	kill strlen_user()	2017-05-15 23:40:22 -04:00
swiotlb.c	…
syscall.c	lib/syscall: Clear return values when no stack	2017-03-24 07:43:35 +01:00
test-kstrtox.c	…
test-string_helpers.c	…
test_bitmap.c	bitmap: optimise bitmap_set and bitmap_clear of a single bit	2017-07-10 16:32:34 -07:00
test_bpf.c	net: introduce __skb_put_[zero, data, u8]	2017-06-20 13:30:14 -04:00
test_firmware.c	…
test_hash.c	…
test_hexdump.c	…
test_kasan.c	kasan: report only the first error by default	2017-03-31 17:13:30 -07:00
test_kmod.c	kmod: add test driver to stress test the module loader	2017-07-14 15:05:13 -07:00
test_list_sort.c	lib: add module support to linked list sorting tests	2017-05-08 17:15:10 -07:00
test_module.c	…
test_parman.c	lib: fix spelling mistake: "actualy" -> "actually"	2017-02-26 11:03:38 -05:00
test_printf.c	…
test_rhashtable.c	…
test_siphash.c	…
test_sort.c	Revert "lib/test_sort.c: make it explicitly non-modular"	2017-05-08 17:15:10 -07:00
test_static_key_base.c	…
test_static_keys.c	…
test_sysctl.c	test_sysctl: test against int proc_dointvec() array support	2017-07-12 16:26:00 -07:00
test_user_copy.c	lib: remove check for AVR32 arch in test_user_copy	2017-05-01 09:36:30 +02:00
test_uuid.c	uuid: hoist helpers uuid_equal() and uuid_copy() from xfs	2017-06-05 16:59:04 +02:00
textsearch.c	…
timerqueue.c	…
ts_bm.c	…
ts_fsm.c	…
ts_kmp.c	…
ubsan.c	…
ubsan.h	…
ucs2_string.c	…
usercopy.c	copy_{from,to}_user(): move kasan checks and might_fault() out-of-line	2017-06-29 22:21:20 -04:00
uuid.c	uuid: hoist uuid_is_null() helper from libnvdimm	2017-06-05 16:59:05 +02:00
vsprintf.c	DeviceTree for 4.13:	2017-07-07 10:37:54 -07:00
win_minmax.c	…