Commit graph

12 commits

Author SHA1 Message Date
Gerard Marull-Paretas
5113c1418d subsystems: migrate includes to <zephyr/...>
In order to bring consistency in-tree, migrate all subsystems code to
the new prefix <zephyr/...>. Note that the conversion has been scripted,
refer to zephyrproject-rtos#45388 for more details.

Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
2022-05-09 12:07:35 +02:00
Daniel Leung
9f1fc49ac9 random: remove @return doc for void functions
For functions returning nothing, there is no need to document
with @return, as Doxgen complains about "documented empty
return type of ...".

Signed-off-by: Daniel Leung <daniel.leung@intel.com>
2022-01-12 16:02:16 -05:00
Filip Kokosinski
19fc1ee77c subsys/random: change parameters for timer-based PRNG
PR #36996 disabled running mem_protect/stack_random test on qemu_riscv32
platform because of this test consistently failing on said platform.
This test starts new threads in equal time intervals, and because of
that we get repeating values after performing the modulus operation when
calculating the stack pointer address.

This can be solved by changing the value of the _RAND32_INC constant
that is used to increase the value returned by the timer-based PRNG.

This commit decreases the value of the mentioned constant from
1000000013U to 1000000003U.

Fixes #37006.

Signed-off-by: Filip Kokosinski <fkokosinski@antmicro.com>
2021-08-30 09:32:36 -04:00
Carles Cufi
f86e8a66d8 random: rand32_timer: Avoid alignment faults by using memcpy
The previous implementation assumed that the dst pointer was always
aligned to a 4-byte boundary in platforms that require alignment for
storage of 32-bit integers. Since this is required for certain platforms
(eg. Arm Cortex-M0), use memcpy() instead, which always takes
alignment into account.

Fixes #33969.

Signed-off-by: Carles Cufi <carles.cufi@nordicsemi.no>
2021-04-16 15:34:59 -04:00
Aastha Grover
83b9f69755 code-guideline: Fixing code violation 10.4 Rule
Both operands of an operator in the arithmetic conversions
performed shall have the same essential type category.

Changes are related to converting the integer constants to the
unsigned integer constants

Signed-off-by: Aastha Grover <aastha.grover@intel.com>
2020-10-01 17:13:29 -04:00
Flavio Ceolin
6216c6cf5b random: Add syscalls for random subsystem
Create syscalls to make possible using random APIs from user mode
threads. These APIs can have different implementations, like using
entropy driver or Xoroshiro128. Some of these implementations also have
some globals to preserve state between calls.

Make it run entire in user space would require user adding these globals
to their memeory domains and/or grant access to entropy device. Syscalls
simplify its usage.

Signed-off-by: Flavio Ceolin <flavio.ceolin@intel.com>
2020-07-08 21:05:36 -04:00
Kumar Gala
a1b77fd589 zephyr: replace zephyr integer types with C99 types
git grep -l 'u\(8\|16\|32\|64\)_t' | \
		xargs sed -i "s/u\(8\|16\|32\|64\)_t/uint\1_t/g"
	git grep -l 's\(8\|16\|32\|64\)_t' | \
		xargs sed -i "s/s\(8\|16\|32\|64\)_t/int\1_t/g"

Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2020-06-08 08:23:57 -05:00
Daniel Leung
076eee3abc subsys/random: fix unused value warning
When using LLVM/Clang, it complains about memcpy() being
casted to (void *):

  warning: expression result unused; should this cast be to 'void'? [-Wunused-value]

So change those to (void) instead as the return of memcpy()
is not used anyway.

Signed-off-by: Daniel Leung <daniel.leung@intel.com>
2019-12-20 08:51:53 -05:00
David Leach
afdc63f320 subsys/random: Add cryptographically secure and bulk fill functions
1) Add cryptographically secure random functions to provide
FIPS 140-2 compliant random functions.

2) Add name to random function choice selectors to ease
selection in SOC .defconfig files

3) Add bulk fill random functions.

Signed-off-by: David Leach <david.leach@nxp.com>
2019-11-05 19:36:42 +01:00
Anas Nashif
e1e05a2eac cleanup: include/: move atomic.h to sys/atomic.h
move atomic.h to sys/atomic.h and
create a shim for backward-compatibility.

No functional changes to the headers.
A warning in the shim can be controlled with CONFIG_COMPAT_INCLUDES.

Related to #16539

Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2019-06-27 22:55:49 -04:00
Anas Nashif
68c389c1f8 include: move system timer headers to include/drivers/timer/
Move internal and architecture specific headers from include/drivers to
subfolder for timer:

   include/drivers/timer

Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2019-06-25 15:27:00 -04:00
Leandro Pereira
adce1d1888 subsys: Add random subsystem
Some "random" drivers are not drivers at all: they just implement the
function `sys_rand32_get()`.  Move those to a random subsystem in
preparation for a reorganization.

Signed-off-by: Leandro Pereira <leandro.pereira@intel.com>
2017-11-01 08:26:29 -04:00
Renamed from drivers/random/rand32_timer.c (Browse further)