refactor: lpac-jni bridge

libs/lpac-jni/src/main/java/net/typeblog/lpac_jni/LpacJni.kt

@@ -19,14 +19,14 @@ internal object LpacJni {
     // es10c
     // null returns signify errors
     external fun es10cGetEid(handle: Long): String?
-    external fun es10cGetProfilesInfo(handle: Long): List<LocalProfileInfo>
+    external fun es10cGetProfilesInfo(handle: Long, profiles: List<LocalProfileInfo>): Long
     external fun es10cEnableProfile(handle: Long, iccid: String, refresh: Boolean): Int
     external fun es10cDisableProfile(handle: Long, iccid: String, refresh: Boolean): Int
     external fun es10cDeleteProfile(handle: Long, iccid: String): Int
     external fun es10cSetNickname(handle: Long, iccid: String, nickNullTerminated: ByteArray): Int
 
     // es10b
-    external fun es10bListNotification(handle: Long): List<LocalProfileNotification>
+    external fun es10bListNotification(handle: Long, elements: List<LocalProfileNotification>): Int
     external fun es10bDeleteNotification(handle: Long, seqNumber: Long): Int
 
     // es10a

libs/lpac-jni/src/main/java/net/typeblog/lpac_jni/ProfileDiscoveryCallback.kt

@@ -1,5 +1,7 @@
 package net.typeblog.lpac_jni
 
+import java.util.ArrayList
+
 interface ProfileDiscoveryCallback {
-    fun onDiscovered(servers: Set<String>)
+    fun onDiscovered(servers: ArrayList<String>)
 }

libs/lpac-jni/src/main/java/net/typeblog/lpac_jni/impl/LocalProfileAssistantImpl.kt

@@ -108,11 +108,21 @@ class LocalProfileAssistantImpl(
 
     override val profiles: List<LocalProfileInfo>
         @Synchronized
-        get() = LpacJni.es10cGetProfilesInfo(contextHandle)
+        get() {
+            val profiles = mutableListOf<LocalProfileInfo>()
+            val ret = LpacJni.es10cGetProfilesInfo(contextHandle, profiles)
+            if (ret < 0) throw IllegalStateException("Failed to get profiles")
+            return profiles
+        }
 
     override val notifications: List<LocalProfileNotification>
         @Synchronized
-        get() = LpacJni.es10bListNotification(contextHandle).sortedBy { it.seqNumber }.reversed()
+        get() {
+            val notifications = mutableListOf<LocalProfileNotification>()
+            val ret = LpacJni.es10bListNotification(contextHandle, notifications)
+            check(ret > 0) { "Failed to get notifications" }
+            return notifications.sortedBy { it.seqNumber }.reversed()
+        }
 
     override val eID: String
         @Synchronized

libs/lpac-jni/src/main/jni/lpac-jni/lpac-convertor.c

@@ -132,6 +132,19 @@ jobject to_version(JNIEnv *env, const char *version) {
     return (*env)->NewObject(env, version_class, version_constructor, value);
 }
 
+jobject to_string_list(JNIEnv *env, char **values) {
+    jclass array_class = (*env)->FindClass(env, ARRAY_LIST_CLASS);
+    jmethodID array_constructor = (*env)->GetMethodID(env, array_class, "<init>", "()V");
+    jobject elements = (*env)->NewObject(env, array_class, array_constructor);
+    jmethodID add_element = (*env)->GetMethodID(env, array_class, "add", "(Ljava/lang/Object;)Z");
+    jstring element = NULL;
+    for (jsize index = 0; values[index] != NULL; index++) {
+        element = toJString(env, values[index]);
+        (*env)->CallBooleanMethod(env, elements, add_element, element);
+    }
+    return elements;
+}
+
 jobject to_string_set(JNIEnv *env, char **values) {
     jclass set_class = (*env)->FindClass(env, HASH_SET_CLASS);
     jmethodID set_constructor = (*env)->GetMethodID(env, set_class, "<init>", "()V");
@@ -187,9 +200,3 @@ jobject to_profile_management_operation(enum es10b_profile_management_operation
             return NULL;
     }
 }
-
-jobject new_array_list(JNIEnv *env) {
-    jclass array_list_class = (*env)->FindClass(env, ARRAY_LIST_CLASS);
-    jmethodID array_list_constructor = (*env)->GetMethodID(env, array_list_class, "<init>", "()V");
-    return (*env)->NewObject(env, array_list_class, array_list_constructor);
-}

libs/lpac-jni/src/main/jni/lpac-jni/lpac-convertor.h

@@ -13,6 +13,7 @@
 #define LOCAL_PROFILE_NOTIFICATION_CLASS PACKAGE_NAME "/LocalProfileNotification"
 #define PROFILE_MANAGEMENT_OPERATION_CLASS PACKAGE_NAME "/ProfileManagementOperation"
 #define EUICC_CONFIGURED_ADDRESSES_CLASS PACKAGE_NAME "/EuiccConfiguredAddresses"
+#define DISCOVERY_CALLBACK_CLASS PACKAGE_NAME "/ProfileDiscoveryCallback"
 #define VERSION_CLASS PACKAGE_NAME "/Version"
 #define HASH_SET_CLASS "java/util/HashSet"
 #define ARRAY_LIST_CLASS "java/util/ArrayList"
@@ -31,10 +32,10 @@ jobject to_profile_class(enum es10c_profile_class profile_class);
 
 jobject to_version(JNIEnv *env, const char *version);
 
+jobject to_string_list(JNIEnv *env, char **values);
+
 jobject to_string_set(JNIEnv *env, char **values);
 
 jobject build_profile_metadata(JNIEnv *env, struct es8p_metadata *metadata);
 
 jobject to_profile_management_operation(enum es10b_profile_management_operation operation);
-
-jobject new_array_list(JNIEnv *env);

libs/lpac-jni/src/main/jni/lpac-jni/lpac-discovery.c

@@ -7,6 +7,23 @@
 #include "lpac-convertor.h"
 #include "lpac-discovery.h"
 
+jclass euicc_configured_addresses_class;
+jmethodID euicc_configured_addresses_constructor;
+
+jmethodID on_discovered;
+
+void lpac_discovery_init(JNIEnv *env) {
+    jclass download_callback_class = (*env)->FindClass(env, DISCOVERY_CALLBACK_CLASS);
+    on_discovered = (*env)->GetMethodID(env, download_callback_class, "onDiscovered",
+                                        "(Ljava/util/ArrayList;)V");
+
+    euicc_configured_addresses_class = (*env)->FindClass(env, EUICC_CONFIGURED_ADDRESSES_CLASS);
+    euicc_configured_addresses_class = (*env)->NewGlobalRef(env, euicc_configured_addresses_class);
+    euicc_configured_addresses_constructor = (*env)->GetMethodID(
+            env, euicc_configured_addresses_class, "<init>",
+            "(Ljava/lang/String;Ljava/lang/String;)V");
+}
+
 JNIEXPORT jobject JNICALL
 Java_net_typeblog_lpac_1jni_LpacJni_es10aGetEuiccConfiguredAddresses(
         JNIEnv *env,
@@ -19,21 +36,11 @@ Java_net_typeblog_lpac_1jni_LpacJni_es10aGetEuiccConfiguredAddresses(
     if (es10a_get_euicc_configured_addresses(ctx, &addresses) < 0) {
         goto out;
     }
-    jclass configured_addresses_class = (*env)->FindClass(env, EUICC_CONFIGURED_ADDRESSES_CLASS);
-    jmethodID configured_addresses_constructor = (*env)->GetMethodID(
-            env, configured_addresses_class, "<init>",
-            "("
-            "Ljava/lang/String;" // default dp address
-            "Ljava/lang/String;" // root ds address
-            ")"
-            "V" // (returns) void
-    );
-    ret = (*env)->NewObject(
-            env, configured_addresses_class,
-            configured_addresses_constructor,
-            toJString(env, addresses.defaultDpAddress),
-            toJString(env, addresses.rootDsAddress)
-    );
+    jstring default_dp_address = toJString(env, addresses.defaultDpAddress);
+    jstring root_ds_address = toJString(env, addresses.rootDsAddress);
+    ret = (*env)->NewObject(env, euicc_configured_addresses_class,
+                            euicc_configured_addresses_constructor,
+                            default_dp_address, root_ds_address);
     out:
     es10a_euicc_configured_addresses_free(&addresses);
     return ret;
@@ -50,10 +57,6 @@ Java_net_typeblog_lpac_1jni_LpacJni_discoveryProfile(
 ) {
     struct euicc_ctx *ctx = (struct euicc_ctx *) handle;
 
-    jclass callback_class = (*env)->GetObjectClass(env, callback);
-    jmethodID on_discovered = (*env)->GetMethodID(env, callback_class, "onDiscovered",
-                                                  "(Ljava/util/Set;)V");
-
     const char *_address = (*env)->GetStringUTFChars(env, address, NULL);
     const char *_imei = NULL;
 
@@ -95,7 +98,7 @@ Java_net_typeblog_lpac_1jni_LpacJni_discoveryProfile(
         goto out;
     }
 
-    (*env)->CallVoidMethod(env, callback, on_discovered, to_string_set(env, smdp_list));
+    (*env)->CallVoidMethod(env, callback, on_discovered, to_string_list(env, smdp_list));
 
     out:
 

libs/lpac-jni/src/main/jni/lpac-jni/lpac-discovery.h

@@ -2,3 +2,5 @@
 
 #include <jni.h>
 #include "lpac-jni.h"
+
+void lpac_discovery_init(JNIEnv *env);

libs/lpac-jni/src/main/jni/lpac-jni/lpac-jni.c

@@ -22,6 +22,7 @@ jint JNI_OnLoad(JavaVM *vm, void *reserved) {
 
     interface_wrapper_init(env);
     lpac_convertor_init(env);
+    lpac_discovery_init(env);
     lpac_download_init(env);
 
     return JNI_VERSION_1_6;
@@ -29,8 +30,7 @@ jint JNI_OnLoad(JavaVM *vm, void *reserved) {
 
 JNIEXPORT jlong JNICALL
 Java_net_typeblog_lpac_1jni_LpacJni_createContext(
-        JNIEnv *env,
-        jobject thiz,
+        JNIEnv *env, jobject thiz,
         jbyteArray isdr_aid,
         jobject apdu_interface,
         jobject http_interface
@@ -104,17 +104,21 @@ Java_net_typeblog_lpac_1jni_LpacJni_es10cGetEid(JNIEnv *env, jobject thiz, jlong
     return ret;
 }
 
-JNIEXPORT jobject JNICALL
+JNIEXPORT jlong JNICALL
 Java_net_typeblog_lpac_1jni_LpacJni_es10cGetProfilesInfo(
         JNIEnv *env,
         __attribute__((unused)) jobject thiz,
-        jlong handle
+        jlong handle,
+        jobject profiles
 ) {
     struct euicc_ctx *ctx = (struct euicc_ctx *) handle;
     struct es10c_profile_info_list *info = NULL;
-    jobject profile_list = new_array_list(env);
     int ret = es10c_get_profiles_info(ctx, &info);
-    if (ret < 0) goto out;
+    if (ret < 0) return ret;
+
+    jclass profile_list_class = (*env)->GetObjectClass(env, profiles);
+    jmethodID add_profile = (*env)->GetMethodID(env, profile_list_class, "add",
+                                                "(Ljava/lang/Object;)Z");
 
     jclass profile_info_class = (*env)->FindClass(env, LOCAL_PROFILE_INFO_CLASS);
     jmethodID profile_info_class_constructor = (*env)->GetMethodID(
@@ -131,9 +135,6 @@ Java_net_typeblog_lpac_1jni_LpacJni_es10cGetProfilesInfo(
             "V" // (returns) void
     );
 
-    jclass profile_list_class = (*env)->GetObjectClass(env, profile_list);
-    jmethodID add_profile = (*env)->GetMethodID(env, profile_list_class, "add", "(Ljava/lang/Object;)Z");
-
     jobject element = NULL;
     while (info) {
         element = (*env)->NewObject(
@@ -146,12 +147,12 @@ Java_net_typeblog_lpac_1jni_LpacJni_es10cGetProfilesInfo(
                 toJString(env, info->isdpAid),
                 to_profile_class(info->profileClass)
         );
-        (*env)->CallBooleanMethod(env, profile_list, add_profile, element);
+        (*env)->CallBooleanMethod(env, profiles, add_profile, element);
         info = info->next;
     }
-    out:
+
     es10c_profile_info_list_free_all(info);
-    return profile_list;
+    return ret;
 }
 
 JNIEXPORT jint JNICALL

libs/lpac-jni/src/main/jni/lpac-jni/lpac-notifications.c

@@ -5,15 +5,15 @@
 #include "lpac-convertor.h"
 #include "lpac-notifications.h"
 
-JNIEXPORT jobject JNICALL
+JNIEXPORT jint JNICALL
 Java_net_typeblog_lpac_1jni_LpacJni_es10bListNotification(
         JNIEnv *env,
-        __attribute__((unused)) jobject thiz,
-        jlong handle
+        jobject thiz,
+        jlong handle,
+        jobject notifications
 ) {
     struct euicc_ctx *ctx = (struct euicc_ctx *) handle;
     struct es10b_notification_metadata_list *metadata = NULL;
-    jobject notification_list = new_array_list(env);
     int ret = es10b_list_notification(ctx, &metadata);
     if (ret < 0) goto out;
 
@@ -29,26 +29,28 @@ Java_net_typeblog_lpac_1jni_LpacJni_es10bListNotification(
             ")"
             "V" // (returns) void
     );
-
-    jclass notification_list_class = (*env)->GetObjectClass(env, notification_list);
-    jmethodID add_notification = (*env)->GetMethodID(env, notification_list_class, "add", "(Ljava/lang/Object;)Z");
+    jmethodID add_notification = (*env)->GetMethodID(
+            env,
+            (*env)->GetObjectClass(env, notifications),
+            "add", "(Ljava/lang/Object;)Z"
+    );
 
     jobject element;
     while (metadata) {
+        jlong sequence_number = metadata->seqNumber;
+        jobject operation = to_profile_management_operation(metadata->profileManagementOperation);
+        jstring address = toJString(env, metadata->notificationAddress);
+        jstring iccid = toJString(env, metadata->iccid);
         element = (*env)->NewObject(
                 env, local_profile_notification_class, local_profile_notification_constructor,
-                (jlong) metadata->seqNumber,
-                to_profile_management_operation(metadata->profileManagementOperation),
-                toJString(env, metadata->notificationAddress),
-                toJString(env, metadata->iccid)
-        );
-        (*env)->CallBooleanMethod(env, notification_list, add_notification, element);
+                sequence_number, operation, address, iccid);
+        (*env)->CallBooleanMethod(env, notifications, add_notification, element);
         metadata = metadata->next;
     }
 
     out:
     es10b_notification_metadata_list_free_all(metadata);
-    return notification_list;
+    return ret;
 }
 
 JNIEXPORT jint JNICALL