New mobile_image_mounter interface plus ideviceimagemounter tool

1 files changed, 271 insertions, 0 deletions

diff --git a/src/mobile_image_mounter.c b/src/mobile_image_mounter.c
new file mode 100644
index 0000000..7fe0a6d
--- /dev/null
+++ b/src/mobile_image_mounter.c
@@ -0,0 +1,271 @@
+/*
+ * mobile_image_mounter.c
+ * MobileImageMounter 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 <string.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <arpa/inet.h>
+#include <plist/plist.h>
+
+#include "mobile_image_mounter.h"
+#include "property_list_service.h"
+#include "debug.h"
+
+/** Locks an MobileImageMounter client, done for thread safety stuff.
+ *
+ * @param client The MIM to lock
+ */
+static void mobile_image_mounter_lock(mobile_image_mounter_client_t client)
+{
+        g_mutex_lock(client->mutex);
+}
+
+/** Unlocks an MIM client, done for thread safety stuff.
+ * 
+ * @param client The MIM to unlock
+ */
+static void mobile_image_mounter_unlock(mobile_image_mounter_client_t client)
+{
+        g_mutex_unlock(client->mutex);
+}
+
+/**
+ * Convert a property_list_service_error_t value to a
+ * mobile_image_mounter_error_t value.
+ * Used internally to get correct error codes.
+ *
+ * @param err A property_list_service_error_t error code
+ *
+ * @return A matching mobile_image_mounter_error_t error code,
+ *     MOBILE_IMAGE_MOUNTER_E_UNKNOWN_ERROR otherwise.
+ */
+static mobile_image_mounter_error_t mobile_image_mounter_error(property_list_service_error_t err)
+{
+        switch (err) {
+                case PROPERTY_LIST_SERVICE_E_SUCCESS:
+                        return MOBILE_IMAGE_MOUNTER_E_SUCCESS;
+                case PROPERTY_LIST_SERVICE_E_INVALID_ARG:
+                        return MOBILE_IMAGE_MOUNTER_E_INVALID_ARG;
+                case PROPERTY_LIST_SERVICE_E_PLIST_ERROR:
+                        return MOBILE_IMAGE_MOUNTER_E_PLIST_ERROR;
+                case PROPERTY_LIST_SERVICE_E_MUX_ERROR:
+                        return MOBILE_IMAGE_MOUNTER_E_CONN_FAILED;
+                default:
+                        break;
+        }
+        return MOBILE_IMAGE_MOUNTER_E_UNKNOWN_ERROR;
+}
+
+/**
+ * Makes a connection to the MobileImageMounter service on the phone. 
+ * 
+ * @param device The device to connect to.
+ * @param port Destination port (usually given by lockdownd_start_service).
+ * @param client Pointer that will be set to a newly allocated
+ *    mobile_image_mounter_client_t upon successful return.
+ * 
+ * @return MOBILE_IMAGE_MOUNTER_E_SUCCESS on success,
+ *    MOBILE_IMAGE_MOUNTER_E_INVALID_ARG when device is NULL,
+ *    or MOBILE_IMAGE_MOUNTER_E_CONN_FAILED when the connection to the
+ *    device could not be established.
+ */
+mobile_image_mounter_error_t mobile_image_mounter_new(idevice_t device, uint16_t port, mobile_image_mounter_client_t *client)
+{
+        /* makes sure thread environment is available */
+        if (!g_thread_supported())
+                g_thread_init(NULL);
+
+        if (!device)
+                return MOBILE_IMAGE_MOUNTER_E_INVALID_ARG;
+
+        property_list_service_client_t plistclient = NULL;
+        if (property_list_service_client_new(device, port, &plistclient) != PROPERTY_LIST_SERVICE_E_SUCCESS) {
+                return MOBILE_IMAGE_MOUNTER_E_CONN_FAILED;
+        }
+
+        mobile_image_mounter_client_t client_loc = (mobile_image_mounter_client_t) malloc(sizeof(struct mobile_image_mounter_client_int));
+        client_loc->parent = plistclient;
+
+        client_loc->mutex = g_mutex_new();
+
+        *client = client_loc;
+        return MOBILE_IMAGE_MOUNTER_E_SUCCESS;
+}
+
+/**
+ * Disconnects an MobileImageMounter client from the device.
+ * 
+ * @param client The client to disconnect.
+ *
+ * @return MOBILE_IMAGE_MOUNTER_E_SUCCESS on success,
+ *    or MOBILE_IMAGE_MOUNTER_E_INVALID_ARG when client is NULL.
+ */
+mobile_image_mounter_error_t mobile_image_mounter_free(mobile_image_mounter_client_t client)
+{
+        if (!client)
+                return MOBILE_IMAGE_MOUNTER_E_INVALID_ARG;
+
+        property_list_service_client_free(client->parent);
+        client->parent = NULL;
+        if (client->mutex) {
+                g_mutex_free(client->mutex);
+        }
+        free(client);
+
+        return MOBILE_IMAGE_MOUNTER_E_SUCCESS;
+}
+
+/**
+ * Tells if the image of ImageType is already mounted.
+ *
+ * @param client The client use
+ * @param image_type The type of the image to look up
+ * @param result Pointer to a plist that will receive the result of the
+ *    operation.
+ *
+ * @note This function may return MOBILE_IMAGE_MOUNTER_E_SUCCESS even if the
+ *    operation has failed. Check the resulting plist for further information.
+ *
+ * @return MOBILE_IMAGE_MOUNTER_E_SUCCESS on success, or an error code on error
+ */
+mobile_image_mounter_error_t mobile_image_mounter_lookup_image(mobile_image_mounter_client_t client, const char *image_type, plist_t *result)
+{
+        if (!client || !image_type || !result) {
+                return MOBILE_IMAGE_MOUNTER_E_INVALID_ARG;
+        }
+        mobile_image_mounter_lock(client);
+
+        plist_t dict = plist_new_dict();
+        plist_dict_insert_item(dict,"Command", plist_new_string("LookupImage"));
+        plist_dict_insert_item(dict,"ImageType", plist_new_string(image_type));
+
+        mobile_image_mounter_error_t res = mobile_image_mounter_error(property_list_service_send_xml_plist(client->parent, dict));
+        plist_free(dict);
+
+        if (res != MOBILE_IMAGE_MOUNTER_E_SUCCESS) {
+                debug_info("%s: Error sending XML plist to device!", __func__);
+                goto leave_unlock;
+        }
+
+        res = mobile_image_mounter_error(property_list_service_receive_plist(client->parent, result));
+        if (res != MOBILE_IMAGE_MOUNTER_E_SUCCESS) {
+                debug_info("%s: Error receiving response from device!", __func__);
+        }
+
+leave_unlock:
+        mobile_image_mounter_unlock(client);
+        return res;
+}
+
+/**
+ * Mounts an image on the device.
+ *
+ * @param client The connected MobileImageMounter client.
+ * @param image_path The absolute path of the image to mount. The image must
+ *    be present before calling this function.
+ * @param image_signature Pointer to a buffer holding the images' signature
+ * @param signature_length Length of the signature image_signature points to
+ * @param image_type Type of image to mount
+ * @param result Pointer to a plist that will receive the result of the
+ *    operation.
+ *
+ * @note This function may return MOBILE_IMAGE_MOUNTER_E_SUCCESS even if the
+ *    operation has failed. Check the resulting plist for further information.
+ *
+ * @return MOBILE_IMAGE_MOUNTER_E_SUCCESS on success,
+ *    MOBILE_IMAGE_MOUNTER_E_INVALID_ARG when on ore more parameters are
+ *    invalid, or another error code otherwise.
+ */
+mobile_image_mounter_error_t mobile_image_mounter_mount_image(mobile_image_mounter_client_t client, const char *image_path, const char *image_signature, uint16_t signature_length, const char *image_type, plist_t *result)
+{
+        if (!client || !image_path || !image_signature || (signature_length == 0) || !image_type || !result) {
+                return MOBILE_IMAGE_MOUNTER_E_INVALID_ARG;
+        }
+        mobile_image_mounter_lock(client);
+
+        plist_t dict = plist_new_dict();
+        plist_dict_insert_item(dict, "Command", plist_new_string("MountImage"));
+        plist_dict_insert_item(dict, "ImagePath", plist_new_string(image_path));
+        plist_dict_insert_item(dict, "ImageSignature", plist_new_data(image_signature, signature_length));
+        plist_dict_insert_item(dict, "ImageType", plist_new_string(image_type));
+
+        mobile_image_mounter_error_t res = mobile_image_mounter_error(property_list_service_send_xml_plist(client->parent, dict));
+        plist_free(dict);
+
+        if (res != MOBILE_IMAGE_MOUNTER_E_SUCCESS) {
+                debug_info("%s: Error sending XML plist to device!", __func__);
+                goto leave_unlock;
+        }
+
+        res = mobile_image_mounter_error(property_list_service_receive_plist(client->parent, result));
+        if (res != MOBILE_IMAGE_MOUNTER_E_SUCCESS) {
+                debug_info("%s: Error receiving response from device!", __func__);
+        }
+
+leave_unlock:
+        mobile_image_mounter_unlock(client);
+        return res;
+}
+
+/**
+ * Hangs up the connection to the MobileImageMounter service.
+ * This functions has to be called before freeing up a mobile_image_mounter
+ * instance. If not, errors appear in the device's syslog.
+ *
+ * @param client The client to hang up
+ *
+ * @return MOBILE_IMAGE_MOUNTER_E_SUCCESS on success,
+ *     MOBILE_IMAGE_MOUNTER_E_INVALID_ARG if client is invalid,
+ *     or another error code otherwise.
+ */
+mobile_image_mounter_error_t mobile_image_mounter_hangup(mobile_image_mounter_client_t client)
+{
+        if (!client) {
+                return MOBILE_IMAGE_MOUNTER_E_INVALID_ARG;
+        }
+        mobile_image_mounter_lock(client);
+
+        plist_t dict = plist_new_dict();
+        plist_dict_insert_item(dict, "Command", plist_new_string("Hangup"));
+
+        mobile_image_mounter_error_t res = mobile_image_mounter_error(property_list_service_send_xml_plist(client->parent, dict));
+        plist_free(dict);
+
+        if (res != MOBILE_IMAGE_MOUNTER_E_SUCCESS) {
+                debug_info("%s: Error sending XML plist to device!", __func__);
+                goto leave_unlock;
+        }
+
+        dict = NULL;
+        res = mobile_image_mounter_error(property_list_service_receive_plist(client->parent, &dict));
+        if (res != MOBILE_IMAGE_MOUNTER_E_SUCCESS) {
+                debug_info("%s: Error receiving response from device!", __func__);
+        }
+        if (dict) {
+                debug_plist(dict);
+                plist_free(dict);
+        }
+
+leave_unlock:
+        mobile_image_mounter_unlock(client);
+        return res;
+}