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-rw-r--r--samples/Kconfig11
-rw-r--r--samples/Makefile1
-rw-r--r--samples/bpf/sockex2_kern.c1
-rw-r--r--samples/rust/Kconfig12
-rw-r--r--samples/rust/Makefile1
-rw-r--r--samples/rust/rust_driver_auxiliary.rs120
-rw-r--r--samples/rust/rust_driver_pci.rs5
-rw-r--r--samples/tsm-mr/Makefile2
-rw-r--r--samples/tsm-mr/tsm_mr_sample.c131
9 files changed, 280 insertions, 4 deletions
diff --git a/samples/Kconfig b/samples/Kconfig
index 09011be2391a..6ade17cb16b4 100644
--- a/samples/Kconfig
+++ b/samples/Kconfig
@@ -184,6 +184,17 @@ config SAMPLE_TIMER
bool "Timer sample"
depends on CC_CAN_LINK && HEADERS_INSTALL
+config SAMPLE_TSM_MR
+ tristate "TSM measurement sample"
+ select TSM_MEASUREMENTS
+ select VIRT_DRIVERS
+ help
+ Build a sample module that emulates MRs (Measurement Registers) and
+ exposes them to user mode applications through the TSM sysfs
+ interface (/sys/class/misc/tsm_mr_sample/emulated_mr/).
+
+ The module name will be tsm-mr-sample when built as a module.
+
config SAMPLE_UHID
bool "UHID sample"
depends on CC_CAN_LINK && HEADERS_INSTALL
diff --git a/samples/Makefile b/samples/Makefile
index bf6e6fca5410..c95bac31851c 100644
--- a/samples/Makefile
+++ b/samples/Makefile
@@ -43,3 +43,4 @@ obj-$(CONFIG_SAMPLES_RUST) += rust/
obj-$(CONFIG_SAMPLE_DAMON_WSSE) += damon/
obj-$(CONFIG_SAMPLE_DAMON_PRCL) += damon/
obj-$(CONFIG_SAMPLE_HUNG_TASK) += hung_task/
+obj-$(CONFIG_SAMPLE_TSM_MR) += tsm-mr/
diff --git a/samples/bpf/sockex2_kern.c b/samples/bpf/sockex2_kern.c
index b7997541f7ee..f93d9145ab8a 100644
--- a/samples/bpf/sockex2_kern.c
+++ b/samples/bpf/sockex2_kern.c
@@ -31,7 +31,6 @@ static inline int proto_ports_offset(__u64 proto)
switch (proto) {
case IPPROTO_TCP:
case IPPROTO_UDP:
- case IPPROTO_DCCP:
case IPPROTO_ESP:
case IPPROTO_SCTP:
case IPPROTO_UDPLITE:
diff --git a/samples/rust/Kconfig b/samples/rust/Kconfig
index be491ad9b3af..7f7371a004ee 100644
--- a/samples/rust/Kconfig
+++ b/samples/rust/Kconfig
@@ -93,6 +93,18 @@ config SAMPLE_RUST_DRIVER_FAUX
If unsure, say N.
+config SAMPLE_RUST_DRIVER_AUXILIARY
+ tristate "Auxiliary Driver"
+ depends on PCI
+ select AUXILIARY_BUS
+ help
+ This option builds the Rust auxiliary driver sample.
+
+ To compile this as a module, choose M here:
+ the module will be called rust_driver_auxiliary.
+
+ If unsure, say N.
+
config SAMPLE_RUST_HOSTPROGS
bool "Host programs"
help
diff --git a/samples/rust/Makefile b/samples/rust/Makefile
index b3c9178d654a..bd2faad63b4f 100644
--- a/samples/rust/Makefile
+++ b/samples/rust/Makefile
@@ -8,6 +8,7 @@ obj-$(CONFIG_SAMPLE_RUST_DMA) += rust_dma.o
obj-$(CONFIG_SAMPLE_RUST_DRIVER_PCI) += rust_driver_pci.o
obj-$(CONFIG_SAMPLE_RUST_DRIVER_PLATFORM) += rust_driver_platform.o
obj-$(CONFIG_SAMPLE_RUST_DRIVER_FAUX) += rust_driver_faux.o
+obj-$(CONFIG_SAMPLE_RUST_DRIVER_AUXILIARY) += rust_driver_auxiliary.o
obj-$(CONFIG_SAMPLE_RUST_CONFIGFS) += rust_configfs.o
rust_print-y := rust_print_main.o rust_print_events.o
diff --git a/samples/rust/rust_driver_auxiliary.rs b/samples/rust/rust_driver_auxiliary.rs
new file mode 100644
index 000000000000..3e15e6d002bb
--- /dev/null
+++ b/samples/rust/rust_driver_auxiliary.rs
@@ -0,0 +1,120 @@
+// SPDX-License-Identifier: GPL-2.0
+
+//! Rust auxiliary driver sample (based on a PCI driver for QEMU's `pci-testdev`).
+//!
+//! To make this driver probe, QEMU must be run with `-device pci-testdev`.
+
+use kernel::{
+ auxiliary, bindings, c_str, device::Core, driver, error::Error, pci, prelude::*, str::CStr,
+ InPlaceModule,
+};
+
+use pin_init::PinInit;
+
+const MODULE_NAME: &CStr = <LocalModule as kernel::ModuleMetadata>::NAME;
+const AUXILIARY_NAME: &CStr = c_str!("auxiliary");
+
+struct AuxiliaryDriver;
+
+kernel::auxiliary_device_table!(
+ AUX_TABLE,
+ MODULE_AUX_TABLE,
+ <AuxiliaryDriver as auxiliary::Driver>::IdInfo,
+ [(auxiliary::DeviceId::new(MODULE_NAME, AUXILIARY_NAME), ())]
+);
+
+impl auxiliary::Driver for AuxiliaryDriver {
+ type IdInfo = ();
+
+ const ID_TABLE: auxiliary::IdTable<Self::IdInfo> = &AUX_TABLE;
+
+ fn probe(adev: &auxiliary::Device<Core>, _info: &Self::IdInfo) -> Result<Pin<KBox<Self>>> {
+ dev_info!(
+ adev.as_ref(),
+ "Probing auxiliary driver for auxiliary device with id={}\n",
+ adev.id()
+ );
+
+ ParentDriver::connect(adev)?;
+
+ let this = KBox::new(Self, GFP_KERNEL)?;
+
+ Ok(this.into())
+ }
+}
+
+struct ParentDriver {
+ _reg: [auxiliary::Registration; 2],
+}
+
+kernel::pci_device_table!(
+ PCI_TABLE,
+ MODULE_PCI_TABLE,
+ <ParentDriver as pci::Driver>::IdInfo,
+ [(
+ pci::DeviceId::from_id(bindings::PCI_VENDOR_ID_REDHAT, 0x5),
+ ()
+ )]
+);
+
+impl pci::Driver for ParentDriver {
+ type IdInfo = ();
+
+ const ID_TABLE: pci::IdTable<Self::IdInfo> = &PCI_TABLE;
+
+ fn probe(pdev: &pci::Device<Core>, _info: &Self::IdInfo) -> Result<Pin<KBox<Self>>> {
+ let this = KBox::new(
+ Self {
+ _reg: [
+ auxiliary::Registration::new(pdev.as_ref(), AUXILIARY_NAME, 0, MODULE_NAME)?,
+ auxiliary::Registration::new(pdev.as_ref(), AUXILIARY_NAME, 1, MODULE_NAME)?,
+ ],
+ },
+ GFP_KERNEL,
+ )?;
+
+ Ok(this.into())
+ }
+}
+
+impl ParentDriver {
+ fn connect(adev: &auxiliary::Device) -> Result<()> {
+ let parent = adev.parent().ok_or(EINVAL)?;
+ let pdev: &pci::Device = parent.try_into()?;
+
+ dev_info!(
+ adev.as_ref(),
+ "Connect auxiliary {} with parent: VendorID={:#x}, DeviceID={:#x}\n",
+ adev.id(),
+ pdev.vendor_id(),
+ pdev.device_id()
+ );
+
+ Ok(())
+ }
+}
+
+#[pin_data]
+struct SampleModule {
+ #[pin]
+ _pci_driver: driver::Registration<pci::Adapter<ParentDriver>>,
+ #[pin]
+ _aux_driver: driver::Registration<auxiliary::Adapter<AuxiliaryDriver>>,
+}
+
+impl InPlaceModule for SampleModule {
+ fn init(module: &'static kernel::ThisModule) -> impl PinInit<Self, Error> {
+ try_pin_init!(Self {
+ _pci_driver <- driver::Registration::new(MODULE_NAME, module),
+ _aux_driver <- driver::Registration::new(MODULE_NAME, module),
+ })
+ }
+}
+
+module! {
+ type: SampleModule,
+ name: "rust_driver_auxiliary",
+ author: "Danilo Krummrich",
+ description: "Rust auxiliary driver",
+ license: "GPL v2",
+}
diff --git a/samples/rust/rust_driver_pci.rs b/samples/rust/rust_driver_pci.rs
index 2bb260aebc9e..15147e4401b2 100644
--- a/samples/rust/rust_driver_pci.rs
+++ b/samples/rust/rust_driver_pci.rs
@@ -83,12 +83,11 @@ impl pci::Driver for SampleDriver {
GFP_KERNEL,
)?;
- let bar = drvdata.bar.try_access().ok_or(ENXIO)?;
-
+ let bar = drvdata.bar.access(pdev.as_ref())?;
dev_info!(
pdev.as_ref(),
"pci-testdev data-match count: {}\n",
- Self::testdev(info, &bar)?
+ Self::testdev(info, bar)?
);
Ok(drvdata.into())
diff --git a/samples/tsm-mr/Makefile b/samples/tsm-mr/Makefile
new file mode 100644
index 000000000000..587c3947b3a7
--- /dev/null
+++ b/samples/tsm-mr/Makefile
@@ -0,0 +1,2 @@
+# SPDX-License-Identifier: GPL-2.0-only
+obj-$(CONFIG_SAMPLE_TSM_MR) += tsm_mr_sample.o
diff --git a/samples/tsm-mr/tsm_mr_sample.c b/samples/tsm-mr/tsm_mr_sample.c
new file mode 100644
index 000000000000..a2c652148639
--- /dev/null
+++ b/samples/tsm-mr/tsm_mr_sample.c
@@ -0,0 +1,131 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/* Copyright(c) 2024-2005 Intel Corporation. All rights reserved. */
+
+#define pr_fmt(x) KBUILD_MODNAME ": " x
+
+#include <linux/module.h>
+#include <linux/tsm-mr.h>
+#include <linux/miscdevice.h>
+#include <crypto/hash.h>
+
+static struct {
+ u8 static_mr[SHA384_DIGEST_SIZE];
+ u8 config_mr[SHA512_DIGEST_SIZE];
+ u8 rtmr0[SHA256_DIGEST_SIZE];
+ u8 rtmr1[SHA384_DIGEST_SIZE];
+ u8 report_digest[SHA512_DIGEST_SIZE];
+} sample_report = {
+ .static_mr = "static_mr",
+ .config_mr = "config_mr",
+ .rtmr0 = "rtmr0",
+ .rtmr1 = "rtmr1",
+};
+
+static int sample_report_refresh(const struct tsm_measurements *tm)
+{
+ struct crypto_shash *tfm;
+ int rc;
+
+ tfm = crypto_alloc_shash(hash_algo_name[HASH_ALGO_SHA512], 0, 0);
+ if (IS_ERR(tfm)) {
+ pr_err("crypto_alloc_shash failed: %ld\n", PTR_ERR(tfm));
+ return PTR_ERR(tfm);
+ }
+
+ rc = crypto_shash_tfm_digest(tfm, (u8 *)&sample_report,
+ offsetof(typeof(sample_report),
+ report_digest),
+ sample_report.report_digest);
+ crypto_free_shash(tfm);
+ if (rc)
+ pr_err("crypto_shash_tfm_digest failed: %d\n", rc);
+ return rc;
+}
+
+static int sample_report_extend_mr(const struct tsm_measurements *tm,
+ const struct tsm_measurement_register *mr,
+ const u8 *data)
+{
+ SHASH_DESC_ON_STACK(desc, 0);
+ int rc;
+
+ desc->tfm = crypto_alloc_shash(hash_algo_name[mr->mr_hash], 0, 0);
+ if (IS_ERR(desc->tfm)) {
+ pr_err("crypto_alloc_shash failed: %ld\n", PTR_ERR(desc->tfm));
+ return PTR_ERR(desc->tfm);
+ }
+
+ rc = crypto_shash_init(desc);
+ if (!rc)
+ rc = crypto_shash_update(desc, mr->mr_value, mr->mr_size);
+ if (!rc)
+ rc = crypto_shash_finup(desc, data, mr->mr_size, mr->mr_value);
+ crypto_free_shash(desc->tfm);
+ if (rc)
+ pr_err("SHA calculation failed: %d\n", rc);
+ return rc;
+}
+
+#define MR_(mr, hash) .mr_value = &sample_report.mr, TSM_MR_(mr, hash)
+static const struct tsm_measurement_register sample_mrs[] = {
+ /* static MR, read-only */
+ { MR_(static_mr, SHA384) },
+ /* config MR, read-only */
+ { MR_(config_mr, SHA512) | TSM_MR_F_NOHASH },
+ /* RTMR, direct extension prohibited */
+ { MR_(rtmr0, SHA256) | TSM_MR_F_LIVE },
+ /* RTMR, direct extension allowed */
+ { MR_(rtmr1, SHA384) | TSM_MR_F_RTMR },
+ /* RTMR, crypto agile, alaised to rtmr0 and rtmr1, respectively */
+ { .mr_value = &sample_report.rtmr0,
+ TSM_MR_(rtmr_crypto_agile, SHA256) | TSM_MR_F_RTMR },
+ { .mr_value = &sample_report.rtmr1,
+ TSM_MR_(rtmr_crypto_agile, SHA384) | TSM_MR_F_RTMR },
+ /* sha512 digest of the whole structure */
+ { MR_(report_digest, SHA512) | TSM_MR_F_LIVE },
+};
+#undef MR_
+
+static struct tsm_measurements sample_tm = {
+ .mrs = sample_mrs,
+ .nr_mrs = ARRAY_SIZE(sample_mrs),
+ .refresh = sample_report_refresh,
+ .write = sample_report_extend_mr,
+};
+
+static const struct attribute_group *sample_groups[] = {
+ NULL,
+ NULL,
+};
+
+static struct miscdevice sample_misc_dev = {
+ .name = KBUILD_MODNAME,
+ .minor = MISC_DYNAMIC_MINOR,
+ .groups = sample_groups,
+};
+
+static int __init tsm_mr_sample_init(void)
+{
+ int rc;
+
+ sample_groups[0] = tsm_mr_create_attribute_group(&sample_tm);
+ if (IS_ERR(sample_groups[0]))
+ return PTR_ERR(sample_groups[0]);
+
+ rc = misc_register(&sample_misc_dev);
+ if (rc)
+ tsm_mr_free_attribute_group(sample_groups[0]);
+ return rc;
+}
+
+static void __exit tsm_mr_sample_exit(void)
+{
+ misc_deregister(&sample_misc_dev);
+ tsm_mr_free_attribute_group(sample_groups[0]);
+}
+
+module_init(tsm_mr_sample_init);
+module_exit(tsm_mr_sample_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("Sample module using tsm-mr to expose emulated MRs");
generated by cgit (git 2.34.1) at 2025-05-30 14:00:40 +0000