Add callback path from wpa_supplicant core to AidlManager::listAliases.

Order of calls is:
1. wpas_list_aliases (notify.c)
2. wpas_aidl_list_aliases (aidl.cpp)
3. listAliases (aidl_manager.cpp)

Bug: 281566895
Test: m
Change-Id: If9b97f8cf1088ac001891e1722871761601c61a7

wpa_supplicant/aidl/aidl.cpp

@@ -1074,6 +1074,17 @@ ssize_t wpas_aidl_get_certificate(const char* alias, uint8_t** value)
 	return aidl_manager->getCertificate(alias, value);
 }
 
+ssize_t wpas_aidl_list_aliases(const char *prefix, char ***aliases)
+{
+	AidlManager *aidl_manager = AidlManager::getInstance();
+	if (!aidl_manager)
+		return -1;
+
+	wpa_printf(MSG_INFO, "Requesting aliases from framework");
+
+	return aidl_manager->listAliases(prefix, aliases);
+}
+
 void wpas_aidl_notify_qos_policy_scs_response(struct wpa_supplicant *wpa_s,
 		unsigned int count, int **scs_resp)
 {

wpa_supplicant/aidl/aidl.h

@@ -146,6 +146,7 @@ extern "C"
 	void wpas_aidl_notify_qos_policy_request(struct wpa_supplicant *wpa_s,
 		struct dscp_policy_data *policies, int num_policies);
 	ssize_t wpas_aidl_get_certificate(const char* alias, uint8_t** value);
+	ssize_t wpas_aidl_list_aliases(const char *prefix, char ***aliases);
 	void wpas_aidl_notify_qos_policy_scs_response(struct wpa_supplicant *wpa_s,
 		unsigned int count, int **scs_resp);
 #else   // CONFIG_CTRL_IFACE_AIDL
@@ -334,6 +335,10 @@ static ssize_t wpas_aidl_get_certificate(const char* alias, uint8_t** value)
 {
 	return -1;
 }
+static ssize_t wpas_aidl_list_aliases(const char *prefix, char ***aliases)
+{
+	return -1;
+}
 static void wpas_aidl_notify_qos_policy_scs_response(struct wpa_supplicant *wpa_s,
 	unsigned int count, int **scs_resp) {}
 #endif  // CONFIG_CTRL_IFACE_AIDL

wpa_supplicant/aidl/aidl_manager.cpp

@@ -2607,6 +2607,41 @@ ssize_t AidlManager::getCertificate(const char* alias, uint8_t** value) {
 	return -1;
 }
 
+ssize_t AidlManager::listAliases(const char *prefix, char ***aliases) {
+	if (prefix == nullptr || aliases == nullptr) {
+		wpa_printf(MSG_ERROR, "Null pointer argument was passed to listAliases");
+		return -1;
+	}
+
+	if (auto results =
+			certificate_utils::listAliases(prefix, non_standard_cert_callback_)) {
+		int count = results->size();
+		*aliases = (char **) os_malloc(sizeof(char *) * count);
+		if (*aliases == nullptr) {
+			wpa_printf(MSG_ERROR, "listAliases: os_malloc alias array error");
+			return -1;
+		}
+		os_memset(*aliases, 0, sizeof(char *) * count);
+
+		int index = 0;
+		for (auto it = results->begin(); it != results->end(); ++it) {
+			int alias_len = it->length();
+			char *alias = (char *) os_malloc(alias_len + 1);
+			if (alias == nullptr) {
+				wpa_printf(MSG_ERROR, "listAliases: os_malloc alias string error");
+				for (int i = 0; i < index; ++i) os_free((*aliases)[i]);
+				os_free(*aliases);
+				return -1;
+			}
+			os_memcpy(alias, it->data(), alias_len + 1);
+			(*aliases)[index] = alias;
+			index++;
+		}
+		return count;
+	}
+	return -1;
+}
+
 QosPolicyScsResponseStatusCode getQosPolicyScsResponseStatusCode(int scsResponseCode)
 {
 	QosPolicyScsResponseStatusCode status = QosPolicyScsResponseStatusCode::TIMEOUT;

wpa_supplicant/aidl/aidl_manager.h

@@ -164,6 +164,7 @@ public:
 			struct dscp_policy_data *policies,
 			int num_policies);
 	ssize_t getCertificate(const char* alias, uint8_t** value);
+	ssize_t listAliases(const char *prefix, char ***aliases);
 	void notifyQosPolicyScsResponse(struct wpa_supplicant *wpa_s,
 			unsigned int count, int **scs_resp);
 

wpa_supplicant/notify.c

@@ -1372,6 +1372,10 @@ ssize_t wpas_get_certificate(const char *alias, uint8_t** value)
 	return wpas_aidl_get_certificate(alias, value);
 }
 
+ssize_t wpas_list_aliases(const char *prefix, char ***aliases)
+{
+	return wpas_aidl_list_aliases(prefix, aliases);
+}
 
 void wpas_notify_signal_change(struct wpa_supplicant *wpa_s)
 {

wpa_supplicant/notify.h

@@ -223,6 +223,7 @@ void wpas_notify_qos_policy_request(struct wpa_supplicant *wpa_s,
 		struct dscp_policy_data *policies, int num_policies);
 void wpas_notify_frequency_changed(struct wpa_supplicant *wpa_s, int frequency);
 ssize_t wpas_get_certificate(const char *alias, uint8_t** value);
+ssize_t wpas_list_aliases(const char *prefix, char ***aliases);
 void wpas_notify_pmk_cache_added(struct wpa_supplicant *wpa_s,
 				 struct rsn_pmksa_cache_entry *entry);
 void wpas_notify_signal_change(struct wpa_supplicant *wpa_s);