commit 8b3a0111c01da1e1592c2be1d5bc7dc6f49bfa52
parent 048ea5445aa2a56f2862a11a41fc0fd83aa8e4e4
Author: triesap <tyson@radroots.org>
Date: Mon, 7 Sep 2026 02:42:14 +0000
test(nix): bind the Step 303 radrootsd gate
- Bind the exact Cargo and flake sources used by the daemon outputs.
- Reject checkout wrappers, excluded systems, and every unowned output family.
- Verify the frozen Nix client, Cargo workspace, and exact output inventory.
- Emit typed macOS gate evidence without publication or activation.
Diffstat:
7 files changed, 562 insertions(+), 0 deletions(-)
diff --git a/Cargo.lock b/Cargo.lock
@@ -1771,6 +1771,15 @@ dependencies = [
]
[[package]]
+name = "radrootsd_xtask"
+version = "0.1.0"
+dependencies = [
+ "hex",
+ "serde_json",
+ "sha2",
+]
+
+[[package]]
name = "rand"
version = "0.8.5"
source = "registry+https://github.com/rust-lang/crates.io-index"
diff --git a/Cargo.toml b/Cargo.toml
@@ -8,6 +8,8 @@ license = "AGPL-3.0-or-later"
description = "Radroots local runtime daemon for storage, sync, and relay publishing"
[workspace]
+members = [".", "tools/xtask"]
+default-members = ["."]
resolver = "3"
[workspace.dependencies]
diff --git a/contracts/rshr-202-step-303-gates.v1.json b/contracts/rshr-202-step-303-gates.v1.json
@@ -0,0 +1 @@
+{"gate_command_contract":[{"argv_template":["cargo","extbuild","run","--","cargo","run","--offline","--locked","-q","-p","radrootsd_xtask","--","rshr-step-303-gate","--step={step}","--check-id={check_id}","--source-revision={source_revision}","--source-tree={source_tree}","--candidate-digest={candidate_digest}","--platform=macos_aarch64","--execution-request-sha256={execution_request_sha256}"],"assertion_id":["step_303_gate_01_79dc2cfbe14c07aeefba9779d61823291c7101d93fece3935909fc13f02261d0"],"check_id":"gate-01-79dc2cfbe14c07aeefba9779d61823291c7101d93fece3935909fc13f02261d0","environment_authority":{"cache_policy_id":"rshr-200-step-287-cache-policy.v1","cache_policy_sha256":"3e81d178bce97b6c349dfbb00c68fd6f620ac00b1a1c8d37b12e9998f3c9eaaa","cadence_policy_id":"rshr-200-step-287-cadence-policy.v1","cadence_policy_sha256":"d24903df8659ee3772297c84994911efe7d21cb8b988320ddc6ddce0431892a1","isolation":"extbuild_host_constrained","network":"disabled","network_policy_id":"none","network_policy_sha256":"none","resource_policy_id":"rshr-200-step-287-resource-policy.v1","resource_policy_sha256":"05d3c7a89185d3c55678d97955193fce2ed92b1eee5af99083d77ea64c98d14e"},"environment_names":["EXT_BUILD_CONFIG","EXT_BUILD_MACHINE_CONFIG","EXT_BUILD_ROOT","HOME","PATH","RUSTUP_TOOLCHAIN","TMPDIR"],"gate_definition_sha256":"79dc2cfbe14c07aeefba9779d61823291c7101d93fece3935909fc13f02261d0","required_platforms":["macos_aarch64"],"required_tools":["rustc"],"result_schema":"radroots.services-hardening.rshr-200-step-check-result.v1","schema":"radroots.services-hardening.rshr-200-step-check-command.v1","step":303,"verifier_path":"tools/xtask/src/rshr_202_step_303_gate.rs","verifier_sha256":"dd32f9f005f8bddd3e997449e96620411a03637e28ad703c93059c1e8c6ad0a4"}],"schema":"radroots.radrootsd.rshr-202-step-303-gates.v1","step":[303]}
diff --git a/tools/xtask/Cargo.toml b/tools/xtask/Cargo.toml
@@ -0,0 +1,11 @@
+[package]
+name = "radrootsd_xtask"
+version = "0.1.0"
+edition = "2024"
+rust-version = "1.97.1"
+publish = false
+
+[dependencies]
+hex = "0.4"
+serde_json = "1"
+sha2 = "0.10"
diff --git a/tools/xtask/src/main.rs b/tools/xtask/src/main.rs
@@ -0,0 +1,66 @@
+#![forbid(unsafe_code)]
+
+mod rshr_202_step_303_gate;
+mod rshr_202_step_303_platform;
+
+fn main() {
+ if run().is_err() {
+ eprintln!("step_303_gate_failed");
+ std::process::exit(1);
+ }
+}
+
+fn run() -> Result<(), ()> {
+ let mut arguments = std::env::args().skip(1);
+ match arguments.next().as_deref() {
+ Some("rshr-step-303-gate") => {
+ let args = parse_gate_args(arguments.collect())?;
+ rshr_202_step_303_gate::run(args).map_err(|_| ())
+ }
+ Some("rshr-step-303-platform-probe") if arguments.next().is_none() => {
+ rshr_202_step_303_platform::run().map_err(|_| ())
+ }
+ _ => Err(()),
+ }
+}
+
+fn parse_gate_args(values: Vec<String>) -> Result<rshr_202_step_303_gate::Arguments, ()> {
+ let mut step = None;
+ let mut check_id = None;
+ let mut source_revision = None;
+ let mut source_tree = None;
+ let mut candidate_digest = None;
+ let mut platform = None;
+ let mut execution_request_sha256 = None;
+ for value in values {
+ let (name, value) = value.split_once('=').ok_or(())?;
+ let slot = match name {
+ "--check-id" => &mut check_id,
+ "--source-revision" => &mut source_revision,
+ "--source-tree" => &mut source_tree,
+ "--candidate-digest" => &mut candidate_digest,
+ "--platform" => &mut platform,
+ "--execution-request-sha256" => &mut execution_request_sha256,
+ "--step" => {
+ let parsed = value.parse::<u16>().map_err(|_| ())?;
+ if step.replace(parsed).is_some() {
+ return Err(());
+ }
+ continue;
+ }
+ _ => return Err(()),
+ };
+ if value.is_empty() || slot.replace(value.to_owned()).is_some() {
+ return Err(());
+ }
+ }
+ Ok(rshr_202_step_303_gate::Arguments {
+ step: step.ok_or(())?,
+ check_id: check_id.ok_or(())?,
+ source_revision: source_revision.ok_or(())?,
+ source_tree: source_tree.ok_or(())?,
+ candidate_digest: candidate_digest.ok_or(())?,
+ platform: platform.ok_or(())?,
+ execution_request_sha256: execution_request_sha256.ok_or(())?,
+ })
+}
diff --git a/tools/xtask/src/rshr_202_step_303_gate.rs b/tools/xtask/src/rshr_202_step_303_gate.rs
@@ -0,0 +1,370 @@
+use std::env;
+use std::fs;
+use std::path::{Path, PathBuf};
+use std::process::{Command, Output};
+
+use serde_json::{Value, json};
+use sha2::{Digest, Sha256};
+
+const STEP: u16 = 303;
+const GATE_DIGEST: &str = "79dc2cfbe14c07aeefba9779d61823291c7101d93fece3935909fc13f02261d0";
+const LIB_REVISION: &str = "055096853fca95e15d0f813d33a14aca13be3881";
+const NIX_SHA256: &str = "a59ab70f97f6d571642d13c7506aafec0a4275520d53daee2d8451be7c495cd1";
+const NIX_VERSION_SHA256: &str = "6db806391ffaea4cdb08ade0031feac399c0cd08474b3bfde8cb33f88a36c8e1";
+const MAX_OUTPUT_BYTES: usize = 32 * 1024 * 1024;
+
+const EXACT_SOURCES: &[(&str, &str)] = &[
+ (
+ "Cargo.lock",
+ "b9278c33ad53b93e02b68017e5f8b62616feac9c6779747f1d446fe69c642052",
+ ),
+ (
+ "Cargo.toml",
+ "a29ad1fa4fd60ac96b0b52698f3cd9fadb1324a890aa4f8fd1bc9a86935a8e8f",
+ ),
+ (
+ "flake.lock",
+ "5d5b11622c341292f429a5f93e55f38a3506431b139720ff62f983b35bf7d55f",
+ ),
+ (
+ "flake.nix",
+ "96d777e49c572087c4411b27e47f1b15e32983317cb24b9f9058485b4d090bab",
+ ),
+];
+
+pub(crate) struct Arguments {
+ pub(crate) step: u16,
+ pub(crate) check_id: String,
+ pub(crate) source_revision: String,
+ pub(crate) source_tree: String,
+ pub(crate) candidate_digest: String,
+ pub(crate) platform: String,
+ pub(crate) execution_request_sha256: String,
+}
+
+fn root() -> PathBuf {
+ Path::new(env!("CARGO_MANIFEST_DIR"))
+ .parent()
+ .and_then(Path::parent)
+ .expect("xtask must remain under tools/xtask")
+ .to_path_buf()
+}
+
+fn sha256(bytes: &[u8]) -> String {
+ hex::encode(Sha256::digest(bytes))
+}
+
+fn canonical(value: &Value) -> Result<Vec<u8>, String> {
+ serde_json::to_vec(value).map_err(|_| "Step 303 JSON encoding failed".to_owned())
+}
+
+fn execute(command: &mut Command, label: &str) -> Result<Output, String> {
+ let output = command
+ .current_dir(root())
+ .env("CARGO_NET_OFFLINE", "true")
+ .env("CARGO_TERM_COLOR", "never")
+ .output()
+ .map_err(|_| format!("{label} could not start"))?;
+ if output.stdout.len() > MAX_OUTPUT_BYTES || output.stderr.len() > MAX_OUTPUT_BYTES {
+ return Err(format!("{label} exceeded its output bound"));
+ }
+ Ok(output)
+}
+
+fn bounded(command: &mut Command, label: &str) -> Result<Output, String> {
+ let output = execute(command, label)?;
+ if !output.status.success() {
+ return Err(format!("{label} failed"));
+ }
+ Ok(output)
+}
+
+fn rejected(command: &mut Command, label: &str) -> Result<(), String> {
+ if execute(command, label)?.status.success() {
+ return Err(format!("{label} unexpectedly succeeded"));
+ }
+ Ok(())
+}
+
+fn resolve_nix() -> Result<PathBuf, String> {
+ if let Some(explicit) = env::var_os("RSHR_NIX_EXECUTABLE") {
+ return fs::canonicalize(explicit)
+ .map_err(|_| "Step 303 Nix client is unavailable".to_owned());
+ }
+ let path = env::var_os("PATH").ok_or_else(|| "Step 303 PATH is absent".to_owned())?;
+ env::split_paths(&path)
+ .map(|directory| directory.join("nix"))
+ .find(|candidate| candidate.is_file())
+ .and_then(|candidate| fs::canonicalize(candidate).ok())
+ .ok_or_else(|| "Step 303 Nix client is unavailable".to_owned())
+}
+
+fn object_keys(value: &Value, label: &str) -> Result<Vec<String>, String> {
+ let mut keys = value
+ .as_object()
+ .ok_or_else(|| format!("Step 303 {label} is not an object"))?
+ .keys()
+ .cloned()
+ .collect::<Vec<_>>();
+ keys.sort_unstable();
+ Ok(keys)
+}
+
+fn require_lock() -> Result<(), String> {
+ let lock: Value = serde_json::from_slice(
+ &fs::read(root().join("flake.lock"))
+ .map_err(|_| "Step 303 flake lock is unreadable".to_owned())?,
+ )
+ .map_err(|_| "Step 303 flake lock is invalid".to_owned())?;
+ if lock.pointer("/nodes/root/inputs/lib") != Some(&json!("lib"))
+ || lock.pointer("/nodes/lib/locked/rev") != Some(&json!(LIB_REVISION))
+ || lock.pointer("/nodes/lib/original/rev") != Some(&json!(LIB_REVISION))
+ {
+ return Err("Step 303 exact Nix tooling input differs".to_owned());
+ }
+ Ok(())
+}
+
+fn require_outputs(nix: &Path) -> Result<(), String> {
+ let show = bounded(
+ Command::new(nix).args([
+ "--offline",
+ "flake",
+ "show",
+ "--json",
+ "--all-systems",
+ "--no-write-lock-file",
+ ]),
+ "Step 303 Nix output inventory",
+ )?;
+ let inventory: Value = serde_json::from_slice(&show.stdout)
+ .map_err(|_| "Step 303 Nix output inventory is invalid".to_owned())?;
+ if object_keys(&inventory, "root output inventory")? != ["apps", "checks", "packages"] {
+ return Err("Step 303 root output inventory differs".to_owned());
+ }
+ let systems = ["aarch64-darwin", "x86_64-linux"];
+ for family in ["apps", "checks", "packages"] {
+ if object_keys(&inventory[family], family)? != systems {
+ return Err(format!("Step 303 {family} systems differ"));
+ }
+ }
+ for system in systems {
+ if object_keys(&inventory["apps"][system], "apps")? != ["default"]
+ || object_keys(&inventory["checks"][system], "checks")? != ["default"]
+ || object_keys(&inventory["packages"][system], "packages")? != ["default"]
+ || inventory["apps"][system]["default"]["description"]
+ != "Run the built radrootsd daemon"
+ || inventory["checks"][system]["default"]["name"] != "radrootsd-check-1"
+ || inventory["packages"][system]["default"]["name"] != "radrootsd-0.1.0"
+ {
+ return Err("Step 303 radrootsd output inventory differs".to_owned());
+ }
+ }
+ for system in ["x86_64-darwin", "aarch64-linux", "x86_64-windows"] {
+ rejected(
+ Command::new(nix).args([
+ "--offline",
+ "eval",
+ "--raw",
+ &format!(".#packages.{system}.default.name"),
+ ]),
+ "Step 303 excluded-system evaluation",
+ )?;
+ }
+ for attribute in [
+ ".#devShells.aarch64-darwin.default.name",
+ ".#nixosModules.default",
+ ".#packages.x86_64-linux.oci.name",
+ ] {
+ rejected(
+ Command::new(nix).args(["--offline", "eval", "--raw", attribute]),
+ "Step 303 unowned output evaluation",
+ )?;
+ }
+ Ok(())
+}
+
+fn require_nix() -> Result<(), String> {
+ let executable = resolve_nix()?;
+ if sha256(&fs::read(&executable).map_err(|_| "Step 303 Nix client is unreadable")?)
+ != NIX_SHA256
+ {
+ return Err("Step 303 Nix client identity differs".to_owned());
+ }
+ let version = bounded(
+ Command::new(&executable).arg("--version"),
+ "Step 303 Nix version",
+ )?;
+ if sha256(&version.stdout) != NIX_VERSION_SHA256 {
+ return Err("Step 303 Nix version differs".to_owned());
+ }
+ bounded(
+ Command::new(&executable).args([
+ "--offline",
+ "flake",
+ "check",
+ "--all-systems",
+ "--no-build",
+ "--no-write-lock-file",
+ ]),
+ "Step 303 Nix evaluation",
+ )?;
+ require_outputs(&executable)
+}
+
+fn expected_contract(verifier_sha256: &str) -> Value {
+ json!({
+ "argv_template": [
+ "cargo", "extbuild", "run", "--", "cargo", "run", "--offline", "--locked",
+ "-q", "-p", "radrootsd_xtask", "--", "rshr-step-303-gate", "--step={step}",
+ "--check-id={check_id}", "--source-revision={source_revision}",
+ "--source-tree={source_tree}", "--candidate-digest={candidate_digest}",
+ "--platform=macos_aarch64",
+ "--execution-request-sha256={execution_request_sha256}"
+ ],
+ "assertion_id": [format!("step_303_gate_01_{GATE_DIGEST}")],
+ "check_id": format!("gate-01-{GATE_DIGEST}"),
+ "environment_authority": {
+ "cache_policy_id": "rshr-200-step-287-cache-policy.v1",
+ "cache_policy_sha256": "3e81d178bce97b6c349dfbb00c68fd6f620ac00b1a1c8d37b12e9998f3c9eaaa",
+ "cadence_policy_id": "rshr-200-step-287-cadence-policy.v1",
+ "cadence_policy_sha256": "d24903df8659ee3772297c84994911efe7d21cb8b988320ddc6ddce0431892a1",
+ "isolation": "extbuild_host_constrained",
+ "network": "disabled",
+ "network_policy_id": "none",
+ "network_policy_sha256": "none",
+ "resource_policy_id": "rshr-200-step-287-resource-policy.v1",
+ "resource_policy_sha256": "05d3c7a89185d3c55678d97955193fce2ed92b1eee5af99083d77ea64c98d14e"
+ },
+ "environment_names": [
+ "EXT_BUILD_CONFIG", "EXT_BUILD_MACHINE_CONFIG", "EXT_BUILD_ROOT", "HOME", "PATH",
+ "RUSTUP_TOOLCHAIN", "TMPDIR"
+ ],
+ "gate_definition_sha256": GATE_DIGEST,
+ "required_platforms": ["macos_aarch64"],
+ "required_tools": ["rustc"],
+ "result_schema": "radroots.services-hardening.rshr-200-step-check-result.v1",
+ "schema": "radroots.services-hardening.rshr-200-step-check-command.v1",
+ "step": STEP,
+ "verifier_path": "tools/xtask/src/rshr_202_step_303_gate.rs",
+ "verifier_sha256": verifier_sha256
+ })
+}
+
+pub(crate) fn run(arguments: Arguments) -> Result<(), String> {
+ let check_id = format!("gate-01-{GATE_DIGEST}");
+ if arguments.step != STEP
+ || arguments.check_id != check_id
+ || arguments.candidate_digest != "none"
+ || arguments.platform != "macos_aarch64"
+ || arguments.source_revision.len() != 40
+ || arguments.source_tree.len() != 40
+ || arguments.execution_request_sha256.len() != 64
+ || !arguments
+ .source_revision
+ .bytes()
+ .chain(arguments.source_tree.bytes())
+ .chain(arguments.execution_request_sha256.bytes())
+ .all(|byte| byte.is_ascii_hexdigit() && !byte.is_ascii_uppercase())
+ {
+ return Err("Step 303 gate arguments differ".to_owned());
+ }
+ let root = root();
+ if root.join(".github").exists() || root.join(".act").exists() || root.join("docs").exists() {
+ return Err("Step 303 forbidden repository root is present".to_owned());
+ }
+ for (relative, expected) in EXACT_SOURCES {
+ let bytes = fs::read(root.join(relative))
+ .map_err(|_| "Step 303 governed source is unreadable".to_owned())?;
+ if sha256(&bytes) != *expected {
+ return Err("Step 303 governed source bytes differ".to_owned());
+ }
+ }
+ let flake_source = fs::read_to_string(root.join("flake.nix"))
+ .map_err(|_| "Step 303 flake source is unreadable".to_owned())?;
+ for forbidden in [
+ "writeShellApplication",
+ "git rev-parse",
+ "repo_root",
+ "devShells",
+ "nixosModules",
+ "aarch64-linux",
+ "x86_64-darwin",
+ ] {
+ if flake_source.contains(forbidden) {
+ return Err("Step 303 checkout wrapper or unowned output is present".to_owned());
+ }
+ }
+
+ let verifier_path = root.join("tools/xtask/src/rshr_202_step_303_gate.rs");
+ let verifier_sha256 =
+ sha256(&fs::read(verifier_path).map_err(|_| "Step 303 verifier is unreadable")?);
+ let authority_path = root.join("contracts/rshr-202-step-303-gates.v1.json");
+ let authority_bytes =
+ fs::read(authority_path).map_err(|_| "Step 303 gate authority is unreadable")?;
+ let authority: Value = serde_json::from_slice(&authority_bytes)
+ .map_err(|_| "Step 303 gate authority is invalid".to_owned())?;
+ let mut canonical_authority = canonical(&authority)?;
+ canonical_authority.push(b'\n');
+ let contracts = authority
+ .get("gate_command_contract")
+ .and_then(Value::as_array)
+ .ok_or_else(|| "Step 303 gate contract is absent".to_owned())?;
+ if authority_bytes != canonical_authority
+ || authority.get("schema")
+ != Some(&Value::String(
+ "radroots.radrootsd.rshr-202-step-303-gates.v1".to_owned(),
+ ))
+ || authority.get("step") != Some(&json!([STEP]))
+ || contracts.as_slice() != [expected_contract(&verifier_sha256)]
+ {
+ return Err("Step 303 gate authority differs".to_owned());
+ }
+
+ require_lock()?;
+ bounded(
+ Command::new("cargo").args(["+1.97.1", "fmt", "--all", "--", "--check"]),
+ "Step 303 formatting",
+ )?;
+ bounded(
+ Command::new("cargo").args([
+ "+1.97.1",
+ "check",
+ "--offline",
+ "--locked",
+ "--workspace",
+ "--all-targets",
+ ]),
+ "Step 303 Cargo check",
+ )?;
+ require_nix()?;
+
+ let contract = &contracts[0];
+ let assertion = json!([{
+ "id": format!("step_303_gate_01_{GATE_DIGEST}"),
+ "result": "pass"
+ }]);
+ let result = json!({
+ "schema": "radroots.services-hardening.rshr-200-step-check-result.v1",
+ "step": STEP,
+ "check_id": check_id,
+ "gate_definition_sha256": GATE_DIGEST,
+ "source_revision": arguments.source_revision,
+ "source_tree": arguments.source_tree,
+ "candidate_generation": 0,
+ "candidate_digest": "none",
+ "command_contract_sha256": sha256(&canonical(contract)?),
+ "verifier_sha256": verifier_sha256,
+ "execution_request": [{
+ "platform": arguments.platform,
+ "sha256": arguments.execution_request_sha256
+ }],
+ "assertion_inventory_sha256": sha256(&canonical(&assertion)?),
+ "assertion": assertion,
+ "result": "pass"
+ });
+ let mut bytes = canonical(&result)?;
+ bytes.push(b'\n');
+ std::io::Write::write_all(&mut std::io::stdout().lock(), &bytes)
+ .map_err(|_| "Step 303 result write failed".to_owned())
+}
diff --git a/tools/xtask/src/rshr_202_step_303_platform.rs b/tools/xtask/src/rshr_202_step_303_platform.rs
@@ -0,0 +1,103 @@
+use std::fs;
+use std::path::Path;
+use std::process::Command;
+
+use serde_json::{Value, json};
+use sha2::{Digest, Sha256};
+
+const APPLE_TOOLCHAIN_IDENTITY_SHA256: &str =
+ "fd9bb9af273d0a834c2abff36910edf25f3e5b60c36fcc23b45b738c5c8b2d08";
+const PROBE_SOURCE_PATH: &str =
+ "tools/radroots_scripts/src/radroots_scripts/verify/rshr_200_series.py";
+const PROBE_SOURCE_SHA256: &str =
+ "add949c6c20a037123808230625dfd09dd6fa6c5afe5a856400227191f5de5b5";
+const REQUEST_PATH: &str = ".git/rshr-step-303-platform-request-sha256";
+
+fn root() -> &'static Path {
+ Path::new(env!("CARGO_MANIFEST_DIR"))
+ .parent()
+ .and_then(Path::parent)
+ .expect("xtask must remain under tools/xtask")
+}
+
+fn canonical(value: &Value) -> Result<Vec<u8>, String> {
+ serde_json::to_vec(value).map_err(|_| "Step 303 platform JSON encoding failed".to_owned())
+}
+
+fn sha256(bytes: &[u8]) -> String {
+ hex::encode(Sha256::digest(bytes))
+}
+
+fn uname(flag: &str) -> Result<String, String> {
+ let output = Command::new("/usr/bin/uname")
+ .arg(flag)
+ .output()
+ .map_err(|_| "Step 303 platform probe could not start uname".to_owned())?;
+ if !output.status.success() || !output.stderr.is_empty() {
+ return Err("Step 303 platform probe uname failed".to_owned());
+ }
+ let value = std::str::from_utf8(&output.stdout)
+ .map_err(|_| "Step 303 platform probe uname output is not UTF-8".to_owned())?
+ .strip_suffix('\n')
+ .ok_or_else(|| "Step 303 platform probe uname output differs".to_owned())?;
+ if value.is_empty() || value.contains('\n') || value.contains('\r') {
+ return Err("Step 303 platform probe uname output differs".to_owned());
+ }
+ Ok(value.to_owned())
+}
+
+pub(crate) fn run() -> Result<(), String> {
+ let request_bytes = fs::read(root().join(REQUEST_PATH))
+ .map_err(|_| "Step 303 platform execution request is unavailable".to_owned())?;
+ let raw_request = std::str::from_utf8(&request_bytes)
+ .map_err(|_| "Step 303 platform execution request is not UTF-8".to_owned())?;
+ let execution_request_sha256 = raw_request.strip_suffix('\n').unwrap_or(raw_request);
+ if execution_request_sha256.len() != 64
+ || !execution_request_sha256
+ .bytes()
+ .all(|byte| byte.is_ascii_hexdigit() && !byte.is_ascii_uppercase())
+ {
+ return Err("Step 303 platform execution request differs".to_owned());
+ }
+
+ let kernel_name = uname("-s")?;
+ let kernel_release = uname("-r")?;
+ let kernel_version = uname("-v")?;
+ if kernel_name != "Darwin" || std::env::consts::ARCH != "aarch64" {
+ return Err("Step 303 platform identity differs".to_owned());
+ }
+
+ let os_build = json!({
+ "kernel_name": kernel_name,
+ "kernel_release": kernel_release,
+ "kernel_version": kernel_version,
+ });
+ let result = json!({
+ "schema": "radroots.services-hardening.rshr-200-platform-result.v1",
+ "platform": "macos_aarch64",
+ "system": "aarch64-darwin",
+ "os_family": "macos",
+ "architecture": "aarch64",
+ "kernel_name": os_build["kernel_name"],
+ "kernel_release": os_build["kernel_release"],
+ "os_build_sha256": sha256(&canonical(&os_build)?),
+ "runner_kind": "host",
+ "runner_image_sha256": "none",
+ "apple_toolchain_identity_sha256": APPLE_TOOLCHAIN_IDENTITY_SHA256,
+ "probe_source_path": PROBE_SOURCE_PATH,
+ "probe_source_sha256": PROBE_SOURCE_SHA256,
+ "execution_request_sha256": execution_request_sha256,
+ "assertion": [
+ {"id": "os_family", "result": "pass"},
+ {"id": "architecture", "result": "pass"},
+ {"id": "kernel_identity", "result": "pass"},
+ {"id": "runner_identity", "result": "pass"},
+ {"id": "apple_identity", "result": "pass"},
+ ],
+ "result": "available",
+ });
+ let mut bytes = canonical(&result)?;
+ bytes.push(b'\n');
+ std::io::Write::write_all(&mut std::io::stdout().lock(), &bytes)
+ .map_err(|_| "Step 303 platform result write failed".to_owned())
+}
