NOISSUE: Add platform-test and attestation-test wasm examples

Makefile

@@ -198,6 +198,14 @@ hal-test:
 	cd examples/hal-test && cargo build --release
 	cp examples/hal-test/target/wasm32-wasip1/release/hal-test.wasm build/hal-test.wasm
 
+platform-test:
+	cd examples/platform-test && cargo build --release
+	cp examples/platform-test/target/wasm32-wasip1/release/platform-test.wasm build/platform-test.wasm
+
+attestation-test:
+	cd examples/attestation-test && cargo build --release
+	cp examples/attestation-test/target/wasm32-wasip1/release/attestation-test.wasm build/attestation-test.wasm
+
 help:
 	@echo "Usage: make <target>"
 	@echo ""

examples/attestation-test/Cargo.toml

@@ -0,0 +1,8 @@
+[package]
+name = "attestation-test"
+version = "0.1.0"
+edition = "2021"
+
+[[bin]]
+name = "attestation-test"
+path = "src/main.rs"

examples/attestation-test/src/main.rs

@@ -0,0 +1,53 @@
+#[link(wasm_import_module = "elastic:attestation/hal")]
+unsafe extern "C" {
+    #[link_name = "get-attestation"]
+    fn get_attestation(
+        nonce_ptr: i32,
+        nonce_len: i32,
+        out_ptr: i32,
+        out_len_ptr: i32,
+    ) -> i32;
+}
+
+const BUF: usize = 4096;
+
+fn hex(bytes: &[u8]) -> String {
+    bytes.iter().map(|b| format!("{b:02x}")).collect()
+}
+
+fn run() -> i32 {
+    let nonce: [u8; 16] = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16];
+    let mut buf = [0u8; BUF];
+    let mut len: u32 = 0;
+    let rc = unsafe {
+        get_attestation(
+            nonce.as_ptr() as i32,
+            nonce.len() as i32,
+            buf.as_mut_ptr() as i32,
+            &mut len as *mut u32 as i32,
+        )
+    };
+    if rc < 0 {
+        eprintln!(
+            "get-attestation: FAILED (rc={}) msg={}",
+            rc,
+            String::from_utf8_lossy(&buf[..len as usize])
+        );
+        return 1;
+    }
+    println!("get-attestation: ok (report len={})", len);
+    println!("get-attestation report: {}", hex(&buf[..len as usize]));
+    0
+}
+
+#[no_mangle]
+pub extern "C" fn run_export() -> i32 {
+    run()
+}
+
+fn main() {
+    let result = run();
+    if result != 0 {
+        eprintln!("attestation-test failed with exit code: {}", result);
+    }
+}

examples/platform-test/Cargo.toml

@@ -0,0 +1,8 @@
+[package]
+name = "platform-test"
+version = "0.1.0"
+edition = "2021"
+
+[[bin]]
+name = "platform-test"
+path = "src/main.rs"

examples/platform-test/src/main.rs

@@ -0,0 +1,77 @@
+#[link(wasm_import_module = "elastic:tee-hal/platform")]
+unsafe extern "C" {
+    #[link_name = "platform-info"]
+    fn get_platform_info(out_ptr: i32, out_len_ptr: i32) -> i32;
+
+    fn attestation(
+        report_data_ptr: i32,
+        report_data_len: i32,
+        out_ptr: i32,
+        out_len_ptr: i32,
+    ) -> i32;
+}
+
+const BUF: usize = 4096;
+
+fn hex(bytes: &[u8]) -> String {
+    bytes.iter().map(|b| format!("{b:02x}")).collect()
+}
+
+fn run() -> i32 {
+    let mut ok = true;
+
+    {
+        let mut buf = [0u8; BUF];
+        let mut len: u32 = 0;
+        let rc =
+            unsafe { get_platform_info(buf.as_mut_ptr() as i32, &mut len as *mut u32 as i32) };
+        if rc < 0 {
+            eprintln!("get-platform-info: FAILED (rc={})", rc);
+            ok = false;
+        } else {
+            println!(
+                "get-platform-info: {}",
+                String::from_utf8_lossy(&buf[..len as usize])
+            );
+        }
+    }
+
+    {
+        let report_data = [0x42u8; 32];
+        let mut buf = [0u8; BUF];
+        let mut len: u32 = 0;
+        let rc = unsafe {
+            attestation(
+                report_data.as_ptr() as i32,
+                report_data.len() as i32,
+                buf.as_mut_ptr() as i32,
+                &mut len as *mut u32 as i32,
+            )
+        };
+        if rc < 0 {
+            eprintln!(
+                "attestation: FAILED (rc={}) msg={}",
+                rc,
+                String::from_utf8_lossy(&buf[..len as usize])
+            );
+            ok = false;
+        } else {
+            println!("attestation: ok (evidence len={})", len);
+            println!("attestation evidence: {}", hex(&buf[..len as usize]));
+        }
+    }
+
+    if ok { 0 } else { 1 }
+}
+
+#[no_mangle]
+pub extern "C" fn run_export() -> i32 {
+    run()
+}
+
+fn main() {
+    let result = run();
+    if result != 0 {
+        eprintln!("platform-test failed with exit code: {}", result);
+    }
+}