diff options
| author | Andrew Scull <ascull@google.com> | 2022-05-30 10:00:08 +0000 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2022-06-23 12:58:18 -0400 |
| commit | 3f807c6b81219555ac964f2623cfcbd1103151fa (patch) | |
| tree | 86067661215f9dc62b0e88b6ee3573112297f78d /drivers | |
| parent | eabc4e2980b25f16e6d2805077aaa6ecbc074d63 (diff) | |
| download | u-boot-3f807c6b81219555ac964f2623cfcbd1103151fa.zip u-boot-3f807c6b81219555ac964f2623cfcbd1103151fa.tar.gz u-boot-3f807c6b81219555ac964f2623cfcbd1103151fa.tar.bz2 | |
fuzzing_engine: Add fuzzing engine uclass
This new class of device will provide fuzzing inputs from a fuzzing
engine.
Signed-off-by: Andrew Scull <ascull@google.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/Kconfig | 2 | ||||
| -rw-r--r-- | drivers/Makefile | 1 | ||||
| -rw-r--r-- | drivers/fuzz/Kconfig | 9 | ||||
| -rw-r--r-- | drivers/fuzz/Makefile | 7 | ||||
| -rw-r--r-- | drivers/fuzz/fuzzing_engine-uclass.c | 28 |
5 files changed, 47 insertions, 0 deletions
diff --git a/drivers/Kconfig b/drivers/Kconfig index b26ca8c..8b6fead 100644 --- a/drivers/Kconfig +++ b/drivers/Kconfig @@ -40,6 +40,8 @@ source "drivers/fastboot/Kconfig" source "drivers/firmware/Kconfig" +source "drivers/fuzz/Kconfig" + source "drivers/fpga/Kconfig" source "drivers/gpio/Kconfig" diff --git a/drivers/Makefile b/drivers/Makefile index 67c8af7..d63fd1c 100644 --- a/drivers/Makefile +++ b/drivers/Makefile @@ -115,6 +115,7 @@ obj-$(CONFIG_W1) += w1/ obj-$(CONFIG_W1_EEPROM) += w1-eeprom/ obj-$(CONFIG_MACH_PIC32) += ddr/microchip/ +obj-$(CONFIG_FUZZ) += fuzz/ obj-$(CONFIG_DM_HWSPINLOCK) += hwspinlock/ obj-$(CONFIG_DM_RNG) += rng/ endif diff --git a/drivers/fuzz/Kconfig b/drivers/fuzz/Kconfig new file mode 100644 index 0000000..a03120f --- /dev/null +++ b/drivers/fuzz/Kconfig @@ -0,0 +1,9 @@ +config DM_FUZZING_ENGINE + bool "Driver support for fuzzing engine devices" + depends on DM + help + Enable driver model for fuzzing engine devices. This interface is + used to get successive inputs from a fuzzing engine that aims to + explore different code paths in a fuzz test. The fuzzing engine may + be instrumenting the execution in order to more effectively generate + inputs that explore different code paths. diff --git a/drivers/fuzz/Makefile b/drivers/fuzz/Makefile new file mode 100644 index 0000000..acd8949 --- /dev/null +++ b/drivers/fuzz/Makefile @@ -0,0 +1,7 @@ +# SPDX-License-Identifier: GPL-2.0+ +# +# Copyright (c) 2022 Google, Inc. +# Written by Andrew Scull <ascull@google.com> +# + +obj-$(CONFIG_DM_FUZZING_ENGINE) += fuzzing_engine-uclass.o diff --git a/drivers/fuzz/fuzzing_engine-uclass.c b/drivers/fuzz/fuzzing_engine-uclass.c new file mode 100644 index 0000000..b16f1c4 --- /dev/null +++ b/drivers/fuzz/fuzzing_engine-uclass.c @@ -0,0 +1,28 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * Copyright (c) 2022 Google, Inc. + * Written by Andrew Scull <ascull@google.com> + */ + +#define LOG_CATEGORY UCLASS_FUZZING_ENGINE + +#include <common.h> +#include <dm.h> +#include <fuzzing_engine.h> + +int dm_fuzzing_engine_get_input(struct udevice *dev, + const uint8_t **data, + size_t *size) +{ + const struct dm_fuzzing_engine_ops *ops = device_get_ops(dev); + + if (!ops->get_input) + return -ENOSYS; + + return ops->get_input(dev, data, size); +} + +UCLASS_DRIVER(fuzzing_engine) = { + .name = "fuzzing_engine", + .id = UCLASS_FUZZING_ENGINE, +}; |