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Message-ID: <20250227030952.2319050-6-alistair@alistair23.me>
Date: Thu, 27 Feb 2025 13:09:37 +1000
From: Alistair Francis <alistair@...stair23.me>
To: linux-cxl@...r.kernel.org,
linux-kernel@...r.kernel.org,
lukas@...ner.de,
linux-pci@...r.kernel.org,
bhelgaas@...gle.com,
Jonathan.Cameron@...wei.com,
rust-for-linux@...r.kernel.org,
akpm@...ux-foundation.org
Cc: boqun.feng@...il.com,
bjorn3_gh@...tonmail.com,
wilfred.mallawa@....com,
aliceryhl@...gle.com,
ojeda@...nel.org,
alistair23@...il.com,
a.hindborg@...nel.org,
tmgross@...ch.edu,
gary@...yguo.net,
alex.gaynor@...il.com,
benno.lossin@...ton.me,
Alistair Francis <alistair@...stair23.me>
Subject: [RFC v2 05/20] lib: rspdm: Initial commit of Rust SPDM
This is the initial commit of the Rust SPDM library. It is based on and
compatible with the C SPDM library in the kernel (lib/spdm).
Signed-off-by: Alistair Francis <alistair@...stair23.me>
---
MAINTAINERS | 12 ++
include/linux/spdm.h | 39 ++++++
lib/Kconfig | 16 +++
lib/Makefile | 2 +
lib/rspdm/Makefile | 10 ++
lib/rspdm/consts.rs | 39 ++++++
lib/rspdm/lib.rs | 119 +++++++++++++++++
lib/rspdm/state.rs | 225 ++++++++++++++++++++++++++++++++
lib/rspdm/validator.rs | 66 ++++++++++
rust/bindings/bindings_helper.h | 2 +
rust/kernel/error.rs | 3 +
11 files changed, 533 insertions(+)
create mode 100644 include/linux/spdm.h
create mode 100644 lib/rspdm/Makefile
create mode 100644 lib/rspdm/consts.rs
create mode 100644 lib/rspdm/lib.rs
create mode 100644 lib/rspdm/state.rs
create mode 100644 lib/rspdm/validator.rs
diff --git a/MAINTAINERS b/MAINTAINERS
index 1b0cc181db74..0f37dbdcfd77 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -21376,6 +21376,18 @@ M: Security Officers <security@...nel.org>
S: Supported
F: Documentation/process/security-bugs.rst
+SECURITY PROTOCOL AND DATA MODEL (SPDM)
+M: Jonathan Cameron <jic23@...nel.org>
+M: Lukas Wunner <lukas@...ner.de>
+M: Alistair Francis <alistair@...stair23.me>
+L: linux-coco@...ts.linux.dev
+L: linux-cxl@...r.kernel.org
+L: linux-pci@...r.kernel.org
+S: Maintained
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/devsec/spdm.git
+F: include/linux/spdm.h
+F: lib/rspdm/
+
SECURITY SUBSYSTEM
M: Paul Moore <paul@...l-moore.com>
M: James Morris <jmorris@...ei.org>
diff --git a/include/linux/spdm.h b/include/linux/spdm.h
new file mode 100644
index 000000000000..9835a3202a0e
--- /dev/null
+++ b/include/linux/spdm.h
@@ -0,0 +1,39 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * DMTF Security Protocol and Data Model (SPDM)
+ * https://www.dmtf.org/dsp/DSP0274
+ *
+ * Copyright (C) 2021-22 Huawei
+ * Jonathan Cameron <Jonathan.Cameron@...wei.com>
+ *
+ * Copyright (C) 2022-24 Intel Corporation
+ */
+
+#ifndef _SPDM_H_
+#define _SPDM_H_
+
+#include <linux/types.h>
+
+struct key;
+struct device;
+struct spdm_state;
+struct x509_certificate;
+
+typedef ssize_t (spdm_transport)(void *priv, struct device *dev,
+ const void *request, size_t request_sz,
+ void *response, size_t response_sz);
+
+typedef int (spdm_validate)(struct device *dev, u8 slot,
+ struct x509_certificate *leaf_cert);
+
+struct spdm_state *spdm_create(struct device *dev, spdm_transport *transport,
+ void *transport_priv, u32 transport_sz,
+ struct key *keyring, spdm_validate *validate);
+
+int spdm_authenticate(struct spdm_state *spdm_state);
+
+void spdm_destroy(struct spdm_state *spdm_state);
+
+extern const struct attribute_group spdm_attr_group;
+
+#endif
diff --git a/lib/Kconfig b/lib/Kconfig
index dccb61b7d698..df9c96a440c5 100644
--- a/lib/Kconfig
+++ b/lib/Kconfig
@@ -714,6 +714,22 @@ config LWQ_TEST
help
Run boot-time test of light-weight queuing.
+config RSPDM
+ bool "Rust SPDM"
+ select CRYPTO
+ select KEYS
+ select ASYMMETRIC_KEY_TYPE
+ select ASYMMETRIC_PUBLIC_KEY_SUBTYPE
+ select X509_CERTIFICATE_PARSER
+ help
+ The Rust implementation of the Security Protocol and Data Model (SPDM)
+ allows for device authentication, measurement, key exchange and
+ encrypted sessions.
+
+ Crypto algorithms negotiated with SPDM are limited to those enabled
+ in .config. Users of SPDM therefore need to also select
+ any algorithms they deem mandatory.
+
endmenu
config GENERIC_IOREMAP
diff --git a/lib/Makefile b/lib/Makefile
index d5cfc7afbbb8..09e1cfe413ef 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -303,6 +303,8 @@ obj-$(CONFIG_PERCPU_TEST) += percpu_test.o
obj-$(CONFIG_ASN1) += asn1_decoder.o
obj-$(CONFIG_ASN1_ENCODER) += asn1_encoder.o
+obj-$(CONFIG_RSPDM) += rspdm/
+
obj-$(CONFIG_FONT_SUPPORT) += fonts/
hostprogs := gen_crc32table
diff --git a/lib/rspdm/Makefile b/lib/rspdm/Makefile
new file mode 100644
index 000000000000..1f62ee2a882d
--- /dev/null
+++ b/lib/rspdm/Makefile
@@ -0,0 +1,10 @@
+# SPDX-License-Identifier: GPL-2.0
+#
+# Rust implementation of the DMTF Security Protocol and Data Model (SPDM)
+# https://www.dmtf.org/dsp/DSP0274
+#
+# Copyright (C) 2024 Western Digital
+
+obj-$(CONFIG_RSPDM) += spdm.o
+
+spdm-y := lib.o
diff --git a/lib/rspdm/consts.rs b/lib/rspdm/consts.rs
new file mode 100644
index 000000000000..311e34c7fae7
--- /dev/null
+++ b/lib/rspdm/consts.rs
@@ -0,0 +1,39 @@
+// SPDX-License-Identifier: GPL-2.0
+
+// Copyright (C) 2024 Western Digital
+
+//! Constants used by the library
+//!
+//! Rust implementation of the DMTF Security Protocol and Data Model (SPDM)
+//! <https://www.dmtf.org/dsp/DSP0274>
+
+pub(crate) const SPDM_REQ: u8 = 0x80;
+pub(crate) const SPDM_ERROR: u8 = 0x7f;
+
+#[expect(dead_code)]
+#[derive(Clone, Copy)]
+pub(crate) enum SpdmErrorCode {
+ InvalidRequest = 0x01,
+ InvalidSession = 0x02,
+ Busy = 0x03,
+ UnexpectedRequest = 0x04,
+ Unspecified = 0x05,
+ DecryptError = 0x06,
+ UnsupportedRequest = 0x07,
+ RequestInFlight = 0x08,
+ InvalidResponseCode = 0x09,
+ SessionLimitExceeded = 0x0a,
+ SessionRequired = 0x0b,
+ ResetRequired = 0x0c,
+ ResponseTooLarge = 0x0d,
+ RequestTooLarge = 0x0e,
+ LargeResponse = 0x0f,
+ MessageLost = 0x10,
+ InvalidPolicy = 0x11,
+ VersionMismatch = 0x41,
+ ResponseNotReady = 0x42,
+ RequestResynch = 0x43,
+ OperationFailed = 0x44,
+ NoPendingRequests = 0x45,
+ VendorDefinedError = 0xff,
+}
diff --git a/lib/rspdm/lib.rs b/lib/rspdm/lib.rs
new file mode 100644
index 000000000000..2bb716140e0a
--- /dev/null
+++ b/lib/rspdm/lib.rs
@@ -0,0 +1,119 @@
+// SPDX-License-Identifier: GPL-2.0
+
+// Copyright (C) 2024 Western Digital
+
+//! Top level library for SPDM
+//!
+//! Rust implementation of the DMTF Security Protocol and Data Model (SPDM)
+//! <https://www.dmtf.org/dsp/DSP0274>
+//!
+//! Top level library, including C compatible public functions to be called
+//! from other subsytems.
+//!
+//! This mimics the C SPDM implementation in the kernel
+
+use core::ffi::{c_int, c_void};
+use core::ptr;
+use core::slice::from_raw_parts_mut;
+use kernel::prelude::*;
+use kernel::{alloc::flags, bindings};
+
+use crate::state::SpdmState;
+
+const __LOG_PREFIX: &[u8] = b"spdm\0";
+
+mod consts;
+mod state;
+mod validator;
+
+/// spdm_create() - Allocate SPDM session
+///
+/// `dev`: Responder device
+/// `transport`: Transport function to perform one message exchange
+/// `transport_priv`: Transport private data
+/// `transport_sz`: Maximum message size the transport is capable of (in bytes)
+/// `keyring`: Trusted root certificates
+/// `validate`: Function to validate additional leaf certificate requirements
+/// (optional, may be %NULL)
+///
+/// Return a pointer to the allocated SPDM session state or NULL on error.
+#[no_mangle]
+pub unsafe extern "C" fn spdm_create(
+ dev: *mut bindings::device,
+ transport: bindings::spdm_transport,
+ transport_priv: *mut c_void,
+ transport_sz: u32,
+ keyring: *mut bindings::key,
+ validate: bindings::spdm_validate,
+) -> *mut SpdmState {
+ match KBox::new(
+ SpdmState::new(
+ dev,
+ transport,
+ transport_priv,
+ transport_sz,
+ keyring,
+ validate,
+ ),
+ flags::GFP_KERNEL,
+ ) {
+ Ok(ret) => KBox::into_raw(ret) as *mut SpdmState,
+ Err(_) => ptr::null_mut(),
+ }
+}
+
+/// spdm_exchange() - Perform SPDM message exchange with device
+///
+/// @spdm_state: SPDM session state
+/// @req: Request message
+/// @req_sz: Size of @req
+/// @rsp: Response message
+/// @rsp_sz: Size of @rsp
+///
+/// Send the request @req to the device via the @transport in @spdm_state and
+/// receive the response into @rsp, respecting the maximum buffer size @rsp_sz.
+/// The request version is automatically populated.
+///
+/// Return response size on success or a negative errno. Response size may be
+/// less than @rsp_sz and the caller is responsible for checking that. It may
+/// also be more than expected (though never more than @rsp_sz), e.g. if the
+/// transport receives only dword-sized chunks.
+#[no_mangle]
+pub unsafe extern "C" fn spdm_exchange(
+ state: &'static mut SpdmState,
+ req: *mut c_void,
+ req_sz: usize,
+ rsp: *mut c_void,
+ rsp_sz: usize,
+) -> isize {
+ let request_buf: &mut [u8] = unsafe { from_raw_parts_mut(req as *mut u8, req_sz) };
+ let response_buf: &mut [u8] = unsafe { from_raw_parts_mut(rsp as *mut u8, rsp_sz) };
+
+ match state.spdm_exchange(request_buf, response_buf) {
+ Ok(ret) => ret as isize,
+ Err(e) => e.to_errno() as isize,
+ }
+}
+
+/// spdm_authenticate() - Authenticate device
+///
+/// @spdm_state: SPDM session state
+///
+/// Authenticate a device through a sequence of GET_VERSION, GET_CAPABILITIES,
+/// NEGOTIATE_ALGORITHMS, GET_DIGESTS, GET_CERTIFICATE and CHALLENGE exchanges.
+///
+/// Perform internal locking to serialize multiple concurrent invocations.
+/// Can be called repeatedly for reauthentication.
+///
+/// Return 0 on success or a negative errno. In particular, -EPROTONOSUPPORT
+/// indicates authentication is not supported by the device.
+#[no_mangle]
+pub unsafe extern "C" fn spdm_authenticate(_state: &'static mut SpdmState) -> c_int {
+ 0
+}
+
+/// spdm_destroy() - Destroy SPDM session
+///
+/// @spdm_state: SPDM session state
+#[no_mangle]
+pub unsafe extern "C" fn spdm_destroy(_state: &'static mut SpdmState) {}
diff --git a/lib/rspdm/state.rs b/lib/rspdm/state.rs
new file mode 100644
index 000000000000..9ebd87603454
--- /dev/null
+++ b/lib/rspdm/state.rs
@@ -0,0 +1,225 @@
+// SPDX-License-Identifier: GPL-2.0
+
+// Copyright (C) 2024 Western Digital
+
+//! The `SpdmState` struct and implementation.
+//!
+//! Rust implementation of the DMTF Security Protocol and Data Model (SPDM)
+//! <https://www.dmtf.org/dsp/DSP0274>
+
+use core::ffi::c_void;
+use kernel::prelude::*;
+use kernel::{
+ bindings,
+ error::{code::EINVAL, to_result, Error},
+ validate::Untrusted,
+};
+
+use crate::consts::{SpdmErrorCode, SPDM_ERROR, SPDM_REQ};
+use crate::validator::{SpdmErrorRsp, SpdmHeader};
+
+/// The current SPDM session state for a device. Based on the
+/// C `struct spdm_state`.
+///
+/// `dev`: Responder device. Used for error reporting and passed to @transport.
+/// `transport`: Transport function to perform one message exchange.
+/// `transport_priv`: Transport private data.
+/// `transport_sz`: Maximum message size the transport is capable of (in bytes).
+/// Used as DataTransferSize in GET_CAPABILITIES exchange.
+/// `keyring`: Keyring against which to check the first certificate in
+/// responder's certificate chain.
+/// `validate`: Function to validate additional leaf certificate requirements.
+///
+/// `version`: Maximum common supported version of requester and responder.
+/// Negotiated during GET_VERSION exchange.
+///
+/// `authenticated`: Whether device was authenticated successfully.
+#[expect(dead_code)]
+pub struct SpdmState {
+ pub(crate) dev: *mut bindings::device,
+ pub(crate) transport: bindings::spdm_transport,
+ pub(crate) transport_priv: *mut c_void,
+ pub(crate) transport_sz: u32,
+ pub(crate) keyring: *mut bindings::key,
+ pub(crate) validate: bindings::spdm_validate,
+
+ // Negotiated state
+ pub(crate) version: u8,
+
+ pub(crate) authenticated: bool,
+}
+
+impl SpdmState {
+ pub(crate) fn new(
+ dev: *mut bindings::device,
+ transport: bindings::spdm_transport,
+ transport_priv: *mut c_void,
+ transport_sz: u32,
+ keyring: *mut bindings::key,
+ validate: bindings::spdm_validate,
+ ) -> Self {
+ SpdmState {
+ dev,
+ transport,
+ transport_priv,
+ transport_sz,
+ keyring,
+ validate,
+ version: 0x10,
+ authenticated: false,
+ }
+ }
+
+ fn spdm_err(&self, rsp: &SpdmErrorRsp) -> Result<(), Error> {
+ match rsp.error_code {
+ SpdmErrorCode::InvalidRequest => {
+ pr_err!("Invalid request\n");
+ Err(EINVAL)
+ }
+ SpdmErrorCode::InvalidSession => {
+ if rsp.version == 0x11 {
+ pr_err!("Invalid session {:#x}\n", rsp.error_data);
+ Err(EINVAL)
+ } else {
+ pr_err!("Undefined error {:#x}\n", rsp.error_code as u8);
+ Err(EINVAL)
+ }
+ }
+ SpdmErrorCode::Busy => {
+ pr_err!("Busy\n");
+ Err(EBUSY)
+ }
+ SpdmErrorCode::UnexpectedRequest => {
+ pr_err!("Unexpected request\n");
+ Err(EINVAL)
+ }
+ SpdmErrorCode::Unspecified => {
+ pr_err!("Unspecified error\n");
+ Err(EINVAL)
+ }
+ SpdmErrorCode::DecryptError => {
+ pr_err!("Decrypt error\n");
+ Err(EIO)
+ }
+ SpdmErrorCode::UnsupportedRequest => {
+ pr_err!("Unsupported request {:#x}\n", rsp.error_data);
+ Err(EINVAL)
+ }
+ SpdmErrorCode::RequestInFlight => {
+ pr_err!("Request in flight\n");
+ Err(EINVAL)
+ }
+ SpdmErrorCode::InvalidResponseCode => {
+ pr_err!("Invalid response code\n");
+ Err(EINVAL)
+ }
+ SpdmErrorCode::SessionLimitExceeded => {
+ pr_err!("Session limit exceeded\n");
+ Err(EBUSY)
+ }
+ SpdmErrorCode::SessionRequired => {
+ pr_err!("Session required\n");
+ Err(EINVAL)
+ }
+ SpdmErrorCode::ResetRequired => {
+ pr_err!("Reset required\n");
+ Err(ECONNRESET)
+ }
+ SpdmErrorCode::ResponseTooLarge => {
+ pr_err!("Response too large\n");
+ Err(EINVAL)
+ }
+ SpdmErrorCode::RequestTooLarge => {
+ pr_err!("Request too large\n");
+ Err(EINVAL)
+ }
+ SpdmErrorCode::LargeResponse => {
+ pr_err!("Large response\n");
+ Err(EMSGSIZE)
+ }
+ SpdmErrorCode::MessageLost => {
+ pr_err!("Message lost\n");
+ Err(EIO)
+ }
+ SpdmErrorCode::InvalidPolicy => {
+ pr_err!("Invalid policy\n");
+ Err(EINVAL)
+ }
+ SpdmErrorCode::VersionMismatch => {
+ pr_err!("Version mismatch\n");
+ Err(EINVAL)
+ }
+ SpdmErrorCode::ResponseNotReady => {
+ pr_err!("Response not ready\n");
+ Err(EINPROGRESS)
+ }
+ SpdmErrorCode::RequestResynch => {
+ pr_err!("Request resynchronization\n");
+ Err(ECONNRESET)
+ }
+ SpdmErrorCode::OperationFailed => {
+ pr_err!("Operation failed\n");
+ Err(EINVAL)
+ }
+ SpdmErrorCode::NoPendingRequests => Err(ENOENT),
+ SpdmErrorCode::VendorDefinedError => {
+ pr_err!("Vendor defined error\n");
+ Err(EINVAL)
+ }
+ }
+ }
+
+ /// Start a SPDM exchange
+ ///
+ /// The data in `request_buf` is sent to the device and the response is
+ /// stored in `response_buf`.
+ pub(crate) fn spdm_exchange(
+ &self,
+ request_buf: &mut [u8],
+ response_buf: &mut [u8],
+ ) -> Result<i32, Error> {
+ let header_size = core::mem::size_of::<SpdmHeader>();
+ let request: &mut SpdmHeader = Untrusted::new_mut(request_buf).validate_mut()?;
+ let response: &SpdmHeader = Untrusted::new_ref(response_buf).validate()?;
+
+ let transport_function = self.transport.ok_or(EINVAL)?;
+ // SAFETY: `transport_function` is provided by the new(), we are
+ // calling the function.
+ let length = unsafe {
+ transport_function(
+ self.transport_priv,
+ self.dev,
+ request_buf.as_ptr() as *const c_void,
+ request_buf.len(),
+ response_buf.as_mut_ptr() as *mut c_void,
+ response_buf.len(),
+ ) as i32
+ };
+ to_result(length)?;
+
+ if (length as usize) < header_size {
+ return Ok(length); // Truncated response is handled by callers
+ }
+ if response.code == SPDM_ERROR {
+ if length as usize >= core::mem::size_of::<SpdmErrorRsp>() {
+ // SAFETY: The response buffer will be at at least as large as
+ // `SpdmErrorRsp` so we can cast the buffer to `SpdmErrorRsp` which
+ // is a packed struct.
+ self.spdm_err(unsafe { &*(response_buf.as_ptr() as *const SpdmErrorRsp) })?;
+ } else {
+ return Err(EINVAL);
+ }
+ }
+
+ if response.code != request.code & !SPDM_REQ {
+ pr_err!(
+ "Response code {:#x} does not match request code {:#x}\n",
+ response.code,
+ request.code
+ );
+ to_result(-(bindings::EPROTO as i32))?;
+ }
+
+ Ok(length)
+ }
+}
diff --git a/lib/rspdm/validator.rs b/lib/rspdm/validator.rs
new file mode 100644
index 000000000000..a0a3a2f46952
--- /dev/null
+++ b/lib/rspdm/validator.rs
@@ -0,0 +1,66 @@
+// SPDX-License-Identifier: GPL-2.0
+
+// Copyright (C) 2024 Western Digital
+
+//! Related structs and their Validate implementations.
+//!
+//! Rust implementation of the DMTF Security Protocol and Data Model (SPDM)
+//! <https://www.dmtf.org/dsp/DSP0274>
+
+use crate::consts::SpdmErrorCode;
+use core::mem;
+use kernel::prelude::*;
+use kernel::{
+ error::{code::EINVAL, Error},
+ validate::{Unvalidated, Validate},
+};
+
+#[repr(C, packed)]
+pub(crate) struct SpdmHeader {
+ pub(crate) version: u8,
+ pub(crate) code: u8, /* RequestResponseCode */
+ pub(crate) param1: u8,
+ pub(crate) param2: u8,
+}
+
+impl Validate<&Unvalidated<[u8]>> for &SpdmHeader {
+ type Err = Error;
+
+ fn validate(unvalidated: &Unvalidated<[u8]>) -> Result<Self, Self::Err> {
+ let raw = unvalidated.raw();
+ if raw.len() < mem::size_of::<SpdmHeader>() {
+ return Err(EINVAL);
+ }
+
+ let ptr = raw.as_ptr();
+ // CAST: `SpdmHeader` only contains integers and has `repr(C)`.
+ let ptr = ptr.cast::<SpdmHeader>();
+ // SAFETY: `ptr` came from a reference and the cast above is valid.
+ Ok(unsafe { &*ptr })
+ }
+}
+
+impl Validate<&mut Unvalidated<[u8]>> for &mut SpdmHeader {
+ type Err = Error;
+
+ fn validate(unvalidated: &mut Unvalidated<[u8]>) -> Result<Self, Self::Err> {
+ let raw = unvalidated.raw_mut();
+ if raw.len() < mem::size_of::<SpdmHeader>() {
+ return Err(EINVAL);
+ }
+
+ let ptr = raw.as_mut_ptr();
+ // CAST: `SpdmHeader` only contains integers and has `repr(C)`.
+ let ptr = ptr.cast::<SpdmHeader>();
+ // SAFETY: `ptr` came from a reference and the cast above is valid.
+ Ok(unsafe { &mut *ptr })
+ }
+}
+
+#[repr(C, packed)]
+pub(crate) struct SpdmErrorRsp {
+ pub(crate) version: u8,
+ pub(crate) code: u8,
+ pub(crate) error_code: SpdmErrorCode,
+ pub(crate) error_data: u8,
+}
diff --git a/rust/bindings/bindings_helper.h b/rust/bindings/bindings_helper.h
index f46cf3bb7069..42aa62f0c8f5 100644
--- a/rust/bindings/bindings_helper.h
+++ b/rust/bindings/bindings_helper.h
@@ -33,6 +33,8 @@
#include <linux/security.h>
#include <linux/slab.h>
#include <linux/tracepoint.h>
+#include <linux/spdm.h>
+#include <linux/uaccess.h>
#include <linux/wait.h>
#include <linux/workqueue.h>
#include <trace/events/rust_sample.h>
diff --git a/rust/kernel/error.rs b/rust/kernel/error.rs
index f6ecf09cb65f..8ee8674ec485 100644
--- a/rust/kernel/error.rs
+++ b/rust/kernel/error.rs
@@ -83,6 +83,9 @@ macro_rules! declare_err {
declare_err!(EIOCBQUEUED, "iocb queued, will get completion event.");
declare_err!(ERECALLCONFLICT, "Conflict with recalled state.");
declare_err!(ENOGRACE, "NFS file lock reclaim refused.");
+ declare_err!(ECONNRESET, "Connection reset by peer.");
+ declare_err!(EMSGSIZE, "Message too long.");
+ declare_err!(EINPROGRESS, "Operation now in progress.");
}
/// Generic integer kernel error.
--
2.48.1
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