pldm-platform: Add example PDR Decoder

Can decode standalone dumps for debugging, with deku trace enabled.

Signed-off-by: Matt Johnston <matt@codeconstruct.com.au>

Author: mkj

Cargo.lock

@@ -17,6 +17,10 @@ num-derive = { workspace = true }
 num-traits = { workspace = true }
 pldm = { workspace = true }
 
+[dev-dependencies]
+deku = { workspace = true, features = ["logging"] }
+env_logger = { workspace = true }
+
 [features]
 default = ["std"]
 alloc = ["pldm/alloc", "deku/alloc"]

pldm-platform/Cargo.toml

@@ -0,0 +1,39 @@
+//! Decode a single Get PDR Response
+//!
+//! This has basic handling, see requester.rs for a real implementation.
+
+use pldm_platform::deku::DekuContainerRead;
+use pldm_platform::proto::*;
+
+use log::*;
+
+fn main() {
+    env_logger::init();
+
+    let a: Vec<_> = std::env::args().collect();
+    let f = a.get(1).expect("Need input file argument");
+    println!("loading {f}");
+    let d = std::fs::read(f).unwrap();
+
+    let ((rest, _), pdrrsp) = GetPDRResp::from_bytes((&d, 0))
+        .map_err(|e| {
+            println!("GetPDR parse error {e:?}");
+            panic!("Bad GetPDR response")
+        })
+        .unwrap();
+    println!("rsp {pdrrsp:?}");
+    assert!(rest.len() == 0);
+
+    let ((rest, _), pdr) = Pdr::from_bytes((&pdrrsp.record_data, 0))
+        .map_err(|e| {
+            trace!("GetPDR parse error {e}");
+            panic!("Bad GetPDR response")
+        })
+        .unwrap();
+    if !rest.is_empty() {
+        panic!("Extra PDR response");
+    }
+    assert!(rest.len() == 0);
+
+    println!("PDR {pdr:?}");
+}