1 files changed, 20 insertions, 2 deletions
diff --git a/identity/aidl/default/libeic/EicPresentation.h b/identity/aidl/default/libeic/EicPresentation.h
index 6f7f432960..a031890e58 100644
--- a/identity/aidl/default/libeic/EicPresentation.h
+++ b/identity/aidl/default/libeic/EicPresentation.h
@@ -30,7 +30,13 @@ extern "C" {
 // The maximum size we support for public keys in reader certificates.
 #define EIC_PRESENTATION_MAX_READER_PUBLIC_KEY_SIZE 65
 
+// Constant used to convey that no session is associated with a presentation.
+#define EIC_PRESENTATION_ID_UNSET 0
+
 typedef struct {
+    // A non-zero number unique for this EicPresentation instance
+    uint32_t id;
+
     int featureLevel;
 
     uint8_t storageKey[EIC_AES_128_KEY_SIZE];
@@ -38,6 +44,10 @@ typedef struct {
 
     uint8_t ephemeralPrivateKey[EIC_P256_PRIV_KEY_SIZE];
 
+    // If non-zero (not EIC_PRESENTATION_ID_UNSET), the id of the EicSession object this
+    // presentation object is associated with.
+    uint32_t sessionId;
+
     // The challenge generated with eicPresentationCreateAuthChallenge()
     uint64_t authChallenge;
 
@@ -93,10 +103,18 @@ typedef struct {
     EicCbor cbor;
 } EicPresentation;
 
-bool eicPresentationInit(EicPresentation* ctx, bool testCredential, const char* docType,
-                         size_t docTypeLength, const uint8_t* encryptedCredentialKeys,
+// If sessionId is zero (EIC_PRESENTATION_ID_UNSET), the presentation object is not associated
+// with a session object. Otherwise it's the id of the session object.
+//
+bool eicPresentationInit(EicPresentation* ctx, uint32_t sessionId, bool testCredential,
+                         const char* docType, size_t docTypeLength,
+                         const uint8_t* encryptedCredentialKeys,
                          size_t encryptedCredentialKeysSize);
 
+bool eicPresentationShutdown(EicPresentation* ctx);
+
+bool eicPresentationGetId(EicPresentation* ctx, uint32_t* outId);
+
 bool eicPresentationGenerateSigningKeyPair(EicPresentation* ctx, const char* docType,
                                            size_t docTypeLength, time_t now,
                                            uint8_t* publicKeyCert, size_t* publicKeyCertSize,