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+/*
+ * property_list_service.c
+ * PropertyList service implementation.
+ *
+ * Copyright (c) 2010 Nikias Bassen. All Rights Reserved.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+#include <arpa/inet.h>
+
+#include "property_list_service.h"
+#include "iphone.h"
+#include "debug.h"
+
+/**
+ * Convert an iphone_error_t value to an property_list_service_error_t value.
+ * Used internally to get correct error codes.
+ *
+ * @param err An iphone_error_t error code
+ *
+ * @return A matching property_list_service_error_t error code,
+ * PROPERTY_LIST_SERVICE_E_UNKNOWN_ERROR otherwise.
+ */
+static property_list_service_error_t iphone_to_property_list_service_error(iphone_error_t err)
+{
+ switch (err) {
+ case IPHONE_E_SUCCESS:
+ return PROPERTY_LIST_SERVICE_E_SUCCESS;
+ case IPHONE_E_INVALID_ARG:
+ return PROPERTY_LIST_SERVICE_E_INVALID_ARG;
+ case IPHONE_E_SSL_ERROR:
+ return PROPERTY_LIST_SERVICE_E_SSL_ERROR;
+ default:
+ break;
+ }
+ return PROPERTY_LIST_SERVICE_E_UNKNOWN_ERROR;
+}
+
+/**
+ * Creates a new property list service for the specified port.
+ *
+ * @param device The device to connect to.
+ * @param port The port on the device to connect to, usually opened by a call to
+ * lockdownd_start_service.
+ * @param client Pointer that will be set to a newly allocated
+ * property_list_service_client_t upon successful return.
+ *
+ * @return PROPERTY_LIST_SERVICE_E_SUCCESS on success,
+ * PROPERTY_LIST_SERVICE_E_INVALID_ARG when one of the arguments is invalid,
+ * or PROPERTY_LIST_SERVICE_E_MUX_ERROR when connecting to the device failed.
+ */
+property_list_service_error_t property_list_service_client_new(iphone_device_t device, uint16_t port, property_list_service_client_t *client)
+{
+ if (!device || port == 0 || !client || *client)
+ return PROPERTY_LIST_SERVICE_E_INVALID_ARG;
+
+ /* Attempt connection */
+ iphone_connection_t connection = NULL;
+ if (iphone_device_connect(device, port, &connection) != IPHONE_E_SUCCESS) {
+ return PROPERTY_LIST_SERVICE_E_MUX_ERROR;
+ }
+
+ /* create client object */
+ property_list_service_client_t client_loc = (property_list_service_client_t)malloc(sizeof(struct property_list_service_client_int));
+ client_loc->connection = connection;
+
+ *client = client_loc;
+
+ return PROPERTY_LIST_SERVICE_E_SUCCESS;
+}
+
+/**
+ * Frees a PropertyList service.
+ *
+ * @param client The property list service to free.
+ *
+ * @return PROPERTY_LIST_SERVICE_E_SUCCESS on success,
+ * PROPERTY_LIST_SERVICE_E_INVALID_ARG when client is invalid, or a
+ * PROPERTY_LIST_SERVICE_E_UNKNOWN_ERROR when another error occured.
+ */
+property_list_service_error_t property_list_service_client_free(property_list_service_client_t client)
+{
+ if (!client)
+ return PROPERTY_LIST_SERVICE_E_INVALID_ARG;
+
+ property_list_service_error_t err = iphone_to_property_list_service_error(iphone_device_disconnect(client->connection));
+ free(client);
+ return err;
+}
+
+/**
+ * Sends a plist using the given property list service client.
+ * Internally used generic plist send function.
+ *
+ * @param client The property list service client to use for sending.
+ * @param plist plist to send
+ * @param binary 1 = send binary plist, 0 = send xml plist
+ *
+ * @return PROPERTY_LIST_SERVICE_E_SUCCESS on success,
+ * PROPERTY_LIST_SERVICE_E_INVALID_ARG when one or more parameters are
+ * invalid, PROPERTY_LIST_SERVICE_E_PLIST_ERROR when dict is not a valid
+ * plist, or PROPERTY_LIST_SERVICE_E_UNKNOWN_ERROR when an unspecified
+ * error occurs.
+ */
+static property_list_service_error_t internal_plist_send(property_list_service_client_t client, plist_t plist, int binary)
+{
+ property_list_service_error_t res = PROPERTY_LIST_SERVICE_E_UNKNOWN_ERROR;
+ char *content = NULL;
+ uint32_t length = 0;
+ uint32_t nlen = 0;
+ int bytes = 0;
+
+ if (!client || (client && !client->connection) || !plist) {
+ return PROPERTY_LIST_SERVICE_E_INVALID_ARG;
+ }
+
+ if (binary) {
+ plist_to_bin(plist, &content, &length);
+ } else {
+ plist_to_xml(plist, &content, &length);
+ }
+
+ if (!content || length == 0) {
+ return PROPERTY_LIST_SERVICE_E_PLIST_ERROR;
+ }
+
+ nlen = htonl(length);
+ debug_info("sending %d bytes", length);
+ iphone_device_send(client->connection, (const char*)&nlen, sizeof(nlen), (uint32_t*)&bytes);
+ if (bytes == sizeof(nlen)) {
+ iphone_device_send(client->connection, content, length, (uint32_t*)&bytes);
+ if (bytes > 0) {
+ debug_info("sent %d bytes", bytes);
+ debug_plist(plist);
+ if ((uint32_t)bytes == length) {
+ res = PROPERTY_LIST_SERVICE_E_SUCCESS;
+ } else {
+ debug_info("ERROR: Could not send all data (%d of %d)!", bytes, length);
+ }
+ }
+ }
+ if (bytes <= 0) {
+ debug_info("ERROR: sending to device failed.");
+ }
+
+ free(content);
+
+ return res;
+}
+
+/**
+ * Sends an XML plist.
+ *
+ * @param client The property list service client to use for sending.
+ * @param plist plist to send
+ *
+ * @return PROPERTY_LIST_SERVICE_E_SUCCESS on success,
+ * PROPERTY_LIST_SERVICE_E_INVALID_ARG when client or plist is NULL,
+ * PROPERTY_LIST_SERVICE_E_PLIST_ERROR when dict is not a valid plist,
+ * or PROPERTY_LIST_SERVICE_E_UNKNOWN_ERROR when an unspecified error occurs.
+ */
+property_list_service_error_t property_list_service_send_xml_plist(property_list_service_client_t client, plist_t plist)
+{
+ return internal_plist_send(client, plist, 0);
+}
+
+/**
+ * Sends a binary plist.
+ *
+ * @param client The property list service client to use for sending.
+ * @param plist plist to send
+ *
+ * @return PROPERTY_LIST_SERVICE_E_SUCCESS on success,
+ * PROPERTY_LIST_SERVICE_E_INVALID_ARG when client or plist is NULL,
+ * PROPERTY_LIST_SERVICE_E_PLIST_ERROR when dict is not a valid plist,
+ * or PROPERTY_LIST_SERVICE_E_UNKNOWN_ERROR when an unspecified error occurs.
+ */
+property_list_service_error_t property_list_service_send_binary_plist(property_list_service_client_t client, plist_t plist)
+{
+ return internal_plist_send(client, plist, 1);
+}
+
+/**
+ * Receives a plist using the given property list service client.
+ * Internally used generic plist receive function.
+ *
+ * @param client The property list service client to use for receiving
+ * @param plist pointer to a plist_t that will point to the received plist
+ * upon successful return
+ * @param timeout Maximum time in milliseconds to wait for data.
+ *
+ * @return PROPERTY_LIST_SERVICE_E_SUCCESS on success,
+ * PROPERTY_LIST_SERVICE_E_INVALID_ARG when client or *plist is NULL,
+ * PROPERTY_LIST_SERVICE_E_PLIST_ERROR when the received data cannot be
+ * converted to a plist, PROPERTY_LIST_SERVICE_E_MUX_ERROR when a
+ * communication error occurs, or PROPERTY_LIST_SERVICE_E_UNKNOWN_ERROR
+ * when an unspecified error occurs.
+ */
+static property_list_service_error_t internal_plist_recv_timeout(property_list_service_client_t client, plist_t *plist, unsigned int timeout)
+{
+ property_list_service_error_t res = PROPERTY_LIST_SERVICE_E_UNKNOWN_ERROR;
+ uint32_t pktlen = 0;
+ uint32_t bytes = 0;
+
+ if (!client || (client && !client->connection) || !plist) {
+ return PROPERTY_LIST_SERVICE_E_INVALID_ARG;
+ }
+
+ iphone_device_recv_timeout(client->connection, (char*)&pktlen, sizeof(pktlen), &bytes, timeout);
+ debug_info("initial read=%i", bytes);
+ if (bytes < 4) {
+ debug_info("initial read failed!");
+ return PROPERTY_LIST_SERVICE_E_MUX_ERROR;
+ } else {
+ if ((char)pktlen == 0) { /* prevent huge buffers */
+ uint32_t curlen = 0;
+ char *content = NULL;
+ pktlen = ntohl(pktlen);
+ debug_info("%d bytes following", pktlen);
+ content = (char*)malloc(pktlen);
+
+ while (curlen < pktlen) {
+ iphone_device_recv(client->connection, content+curlen, pktlen-curlen, &bytes);
+ if (bytes <= 0) {
+ res = PROPERTY_LIST_SERVICE_E_MUX_ERROR;
+ break;
+ }
+ debug_info("received %d bytes", bytes);
+ curlen += bytes;
+ }
+ if (!memcmp(content, "bplist00", 8)) {
+ plist_from_bin(content, pktlen, plist);
+ } else {
+ plist_from_xml(content, pktlen, plist);
+ }
+ if (*plist) {
+ debug_plist(*plist);
+ res = PROPERTY_LIST_SERVICE_E_SUCCESS;
+ } else {
+ res = PROPERTY_LIST_SERVICE_E_PLIST_ERROR;
+ }
+ free(content);
+ content = NULL;
+ } else {
+ res = PROPERTY_LIST_SERVICE_E_UNKNOWN_ERROR;
+ }
+ }
+ return res;
+}
+
+/**
+ * Receives a plist using the given property list service client with specified
+ * timeout.
+ * Binary or XML plists are automatically handled.
+ *
+ * @param client The property list service client to use for receiving
+ * @param plist pointer to a plist_t that will point to the received plist
+ * upon successful return
+ * @param timeout Maximum time in milliseconds to wait for data.
+ *
+ * @return PROPERTY_LIST_SERVICE_E_SUCCESS on success,
+ * PROPERTY_LIST_SERVICE_E_INVALID_ARG when connection or *plist is NULL,
+ * PROPERTY_LIST_SERVICE_E_PLIST_ERROR when the received data cannot be
+ * converted to a plist, PROPERTY_LIST_SERVICE_E_MUX_ERROR when a
+ * communication error occurs, or PROPERTY_LIST_SERVICE_E_UNKNOWN_ERROR when
+ * an unspecified error occurs.
+ */
+property_list_service_error_t property_list_service_receive_plist_with_timeout(property_list_service_client_t client, plist_t *plist, unsigned int timeout)
+{
+ return internal_plist_recv_timeout(client, plist, timeout);
+}
+
+/**
+ * Receives a plist using the given property list service client.
+ * Binary or XML plists are automatically handled.
+ *
+ * This function is like property_list_service_receive_plist_with_timeout
+ * using a timeout of 10 seconds.
+ * @see property_list_service_receive_plist_with_timeout
+ *
+ * @param client The property list service client to use for receiving
+ * @param plist pointer to a plist_t that will point to the received plist
+ * upon successful return
+ *
+ * @return PROPERTY_LIST_SERVICE_E_SUCCESS on success,
+ * PROPERTY_LIST_SERVICE_E_INVALID_ARG when client or *plist is NULL,
+ * PROPERTY_LIST_SERVICE_E_PLIST_ERROR when the received data cannot be
+ * converted to a plist, PROPERTY_LIST_SERVICE_E_MUX_ERROR when a
+ * communication error occurs, or PROPERTY_LIST_SERVICE_E_UNKNOWN_ERROR when
+ * an unspecified error occurs.
+ */
+property_list_service_error_t property_list_service_receive_plist(property_list_service_client_t client, plist_t *plist)
+{
+ return internal_plist_recv_timeout(client, plist, 10000);
+}
+
+/**
+ * Enable SSL for the given property list service client.
+ *
+ * @param client The connected property list service client for which SSL
+ * should be enabled.
+ *
+ * @return PROPERTY_LIST_SERVICE_E_SUCCESS on success,
+ * PROPERTY_LIST_SERVICE_E_INVALID_ARG if client or client->connection is
+ * NULL, PROPERTY_LIST_SERVICE_E_SSL_ERROR when SSL could not be enabled,
+ * or PROPERTY_LIST_SERVICE_E_UNKNOWN_ERROR otherwise.
+ */
+property_list_service_error_t property_list_service_enable_ssl(property_list_service_client_t client)
+{
+ if (!client || !client->connection)
+ return PROPERTY_LIST_SERVICE_E_INVALID_ARG;
+ return iphone_to_property_list_service_error(iphone_connection_enable_ssl(client->connection));
+}
+
+/**
+ * Disable SSL for the given property list service client.
+ *
+ * @param client The connected property list service client for which SSL
+ * should be disabled.
+ *
+ * @return PROPERTY_LIST_SERVICE_E_SUCCESS on success,
+ * PROPERTY_LIST_SERVICE_E_INVALID_ARG if client or client->connection is
+ * NULL, or PROPERTY_LIST_SERVICE_E_UNKNOWN_ERROR otherwise.
+ */
+property_list_service_error_t property_list_service_disable_ssl(property_list_service_client_t client)
+{
+ if (!client || !client->connection)
+ return PROPERTY_LIST_SERVICE_E_INVALID_ARG;
+ return iphone_to_property_list_service_error(iphone_connection_disable_ssl(client->connection));
+}
+