commit 873be31d5e019db4ec85d84d8c0fa0038e57491b
author David Brown <david.brown@linaro.org> Tue Sep 03 12:22:32 2019 -0600
committer Fabio Utzig <utzig@utzig.org> Mon Sep 09 10:00:09 2019 -0300
tree 98710ba6902df0cdd1e476ab722c3b201a29decf
parent 0e6bc7fe1c396a0b831df51d0f8e0cd704c603f4

sim: Add OldCorrect and NoUpgrade dependency types

Add two additional dependency types.  The NoUpgrade type indicates that
this slot should not contain an upgrade at all.  The OldCorrect
indicates a dependency on the old version of the other slot.

Signed-off-by: David Brown <david.brown@linaro.org>
Signed-off-by: Fabio Utzig <utzig@apache.org>

sim/src/image.rs

diff --git a/sim/src/image.rs b/sim/src/image.rs
index 82cd729..88a85be 100644
--- a/sim/src/image.rs
+++ b/sim/src/image.rs
@@ -38,6 +38,7 @@
     BoringDep,
     Depender,
     DepTest,
+    DepType,
     PairDep,
     UpgradeInfo,
 };
@@ -167,7 +168,10 @@
                 Box::new(BoringDep(image_num))
             };
             let primaries = install_image(&mut flash, &slots[0], 42784, &*dep, false);
-            let upgrades = install_image(&mut flash, &slots[1], 46928, &*dep, false);
+            let upgrades = match deps.depends[image_num] {
+                DepType::NoUpgrade => install_no_image(),
+                _ => install_image(&mut flash, &slots[1], 46928, &*dep, false)
+            };
             OneImage {
                 slots: slots,
                 primaries: primaries,
@@ -1228,6 +1232,14 @@
     }
 }
 
+/// Install no image.  This is used when no upgrade happens.
+fn install_no_image() -> ImageData {
+    ImageData {
+        plain: vec![],
+        cipher: None,
+    }
+}
+
 fn make_tlv() -> TlvGen {
     if Caps::EcdsaP224.present() {
         panic!("Ecdsa P224 not supported in Simulator");