This crate provides to an interface into the linux
procfs filesystem, usually mounted at
This is a pseudo-filesystem which is available on most every linux system and provides an interface to kernel data structures.
Not all fields/data are available in each kernel. Some fields were added in specific kernel
releases, and other fields are only present in certain kernel configuration options are
enabled. These are represented as
Option fields in this crate.
This crate aims to support all 2.6 kernels (and newer). WSL2 is also supported.
In almost all cases, the documentation is taken from the
proc.5 manual page. This means that
sometimes the style of writing is not very “rusty”, or may do things like reference related files
(instead of referencing related structs). Contributions to improve this are welcome.
While previous versions of the library could panic, this current version aims to be panic-free
in a many situations as possible. Whenever the procfs crate encounters a bug in its own
parsing code, it will return an
InternalError error. This should be considered a
bug and should be reported. If you encounter a panic,
please report that as well.
The following cargo features are available:
chrono– Default. Optional. This feature enables a few methods that return values as
flate2– Default. Optional. This feature enables parsing gzip compressed
/proc/config.gzfile via the
backtrace– Optional. This feature lets you get a stack trace whenever an
Examples can be found in the various modules shown below, or in the examples folder of the code repository.
pub use crate::sys::kernel::BuildInfo as KernelBuildInfo;
pub use crate::sys::kernel::Type as KernelType;
pub use crate::sys::kernel::Version as KernelVersion;
/proc/sys/directory is there so that you don’t even need special tools to do it!