Module libafl::utils

Utility functions for AFL

Structs

ChildHandle	Child Process Handle
Lehmer64Rand	XXH3 Based, hopefully speedy, rnd implementation
RomuDuoJrRand	see https://arxiv.org/pdf/2002.11331.pdf
RomuTrioRand	Extremely quick rand implementation see https://arxiv.org/pdf/2002.11331.pdf
XorShift64Rand	XXH3 Based, hopefully speedy, rnd implementation
Xoshiro256StarRand	XXH3 Based, hopefully speedy, rnd implementation

Enums

ForkResult

The ForkResult (result of a fork)

Traits

AsSlice	Can be converted to a slice
HasRand	Has a Rand field, that can be used to get random values
Rand	Ways to get random around here Please note that these are not cryptographically secure Or, even if some might be by accident, at least they are not seeded in a cryptographically secure fashion.
RandomSeed	Initialize Rand types from a source of randomness.

Functions

current_milliseconds	Gets current milliseconds since UNIX_EPOCH
current_nanos	Gets current nanoseconds since UNIX_EPOCH
current_time	Current time
find_mapping_for_address	Get the start and end address, permissions and path of the mapping containing a particular address
find_mapping_for_path	Get the start and end address of the mapping containing with a particular path
fork⚠	Unix has forks.
startable_self	Executes the current process from the beginning, as subprocess. use start_self.status()? to wait for the child
walk_self_maps	Allows one to walk the mappings in /proc/self/maps, caling a callback function for each mapping. If the callback returns true, we stop the walk.

Type Definitions

StdRand

The standard rand implementation for LibAFL. It is usually the right choice, with very good speed and a reasonable randomness. Not cryptographically secure (which is not what you want during fuzzing ;) )