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authorGravatar Nikias Bassen2009-09-10 13:28:13 +0200
committerGravatar Martin Szulecki2009-09-12 11:41:38 +0200
commit1f6282ffddec7012df82fa929dfe72cfc74b063a (patch)
tree452c927c07806855f360ee9803111a1f72e05d3c /src/iphone.c
parent26ce10634d277df51c4e9c2bd61b409df3f5b060 (diff)
downloadlibimobiledevice-1f6282ffddec7012df82fa929dfe72cfc74b063a.tar.gz
libimobiledevice-1f6282ffddec7012df82fa929dfe72cfc74b063a.tar.bz2
Public API rework, extension and adaption to latest libusbmuxd-1.0 API.
Diffstat (limited to 'src/iphone.c')
-rw-r--r--src/iphone.c371
1 files changed, 305 insertions, 66 deletions
diff --git a/src/iphone.c b/src/iphone.c
index e694373..80e796b 100644
--- a/src/iphone.c
+++ b/src/iphone.c
@@ -1,8 +1,9 @@
/*
* iphone.c
- * Functions for creating and initializing iPhone structures.
+ * Device discovery and communication interface.
*
* Copyright (c) 2008 Zach C. All Rights Reserved.
+ * Copyright (c) 2009 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
@@ -19,104 +20,161 @@
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
-#include <stdio.h>
#include <stdlib.h>
#include <string.h>
+#include <errno.h>
+#include <usbmuxd.h>
#include "iphone.h"
#include "utils.h"
+static iphone_event_cb_t event_cb = NULL;
+
+static void usbmux_event_cb(const usbmuxd_event_t *event, void *user_data)
+{
+ iphone_event_t ev;
+
+ ev.event = event->event;
+ ev.uuid = event->device.uuid;
+ ev.conn_type = CONNECTION_USBMUXD;
+
+ if (event_cb) {
+ event_cb(&ev, user_data);
+ }
+}
+
/**
- * Retrieves a list of connected devices from usbmuxd and matches their
- * UUID with the given UUID. If the given UUID is NULL then the first
- * device reported by usbmuxd is used.
+ * Register a callback function that will be called when device add/remove
+ * events occur.
*
- * @param device Upon calling this function, a pointer to a location of type
- * iphone_device_t, which must have the value NULL. On return, this location
- * will be filled with a handle to the device.
- * @param uuid The UUID to match.
+ * @param callback Callback function to call.
+ * @param user_data Application-specific data passed as parameter
+ * to the registered callback function.
*
- * @return IPHONE_E_SUCCESS if ok, otherwise an error code.
+ * @return IPHONE_E_SUCCESS on success or an error value when an error occured.
*/
-iphone_error_t iphone_get_device_by_uuid(iphone_device_t * device, const char *uuid)
+iphone_error_t iphone_event_subscribe(iphone_event_cb_t callback, void *user_data)
{
- iphone_device_t phone;
- uint32_t handle = 0;
- char *serial_number = malloc(41);
- usbmuxd_scan_result *dev_list = NULL;
- int i;
-
- if (usbmuxd_scan(&dev_list) < 0) {
- log_debug_msg("%s: usbmuxd_scan returned an error, is usbmuxd running?\n", __func__);
- }
- if (dev_list && dev_list[0].handle > 0) {
- if (!uuid) {
- /* select first device found if no UUID specified */
- handle = dev_list[0].handle;
- strcpy(serial_number, dev_list[0].serial_number);
- } else {
- /* otherwise walk through the list */
- for (i = 0; dev_list[i].handle > 0; i++) {
- log_debug_msg("%s: device handle=%d, uuid=%s\n", __func__, dev_list[i].handle, dev_list[i].serial_number);
- if (strcasecmp(uuid, dev_list[i].serial_number) == 0) {
- handle = dev_list[i].handle;
- strcpy(serial_number, dev_list[i].serial_number);
- break;
- }
- }
- }
- free(dev_list);
-
- if (handle > 0) {
- phone = (iphone_device_t) malloc(sizeof(struct iphone_device_int));
- phone->handle = handle;
- phone->serial_number = serial_number;
- *device = phone;
- return IPHONE_E_SUCCESS;
- }
+ event_cb = callback;
+ int res = usbmuxd_subscribe(usbmux_event_cb, user_data);
+ if (res != 0) {
+ event_cb = NULL;
+ log_debug_msg("%s: Error %d when subscribing usbmux event callback!\n", __func__, res);
+ return IPHONE_E_UNKNOWN_ERROR;
}
+ return IPHONE_E_SUCCESS;
+}
- return IPHONE_E_NO_DEVICE;
+/**
+ * Release the event callback function that has been registered with
+ * iphone_event_subscribe().
+ *
+ * @return IPHONE_E_SUCCESS on success or an error value when an error occured.
+ */
+iphone_error_t iphone_event_unsubscribe()
+{
+ event_cb = NULL;
+ int res = usbmuxd_unsubscribe();
+ if (res != 0) {
+ log_debug_msg("%s: Error %d when unsubscribing usbmux event callback!\n", __func__, res);
+ return IPHONE_E_UNKNOWN_ERROR;
+ }
+ return IPHONE_E_SUCCESS;
}
/**
- * This function has the purpose to retrieve a handle to the first
- * attached iPhone/iPod reported by usbmuxd.
+ * Get a list of currently available devices.
*
- * @param Upon calling this function, a pointer to a location of type
- * iphone_device_t, which must have the value NULL. On return, this location
- * will be filled with a handle to the device.
+ * @param devices List of uuids of devices that are currently available.
+ * This list is terminated by a NULL pointer.
+ * @param count Number of devices found.
*
- * @return IPHONE_E_SUCCESS if ok, otherwise an error code.
+ * @return IPHONE_E_SUCCESS on success or an error value when an error occured.
*/
-iphone_error_t iphone_get_device(iphone_device_t * device)
+iphone_error_t iphone_get_device_list(char ***devices, int *count)
{
- return iphone_get_device_by_uuid(device, NULL);
+ usbmuxd_device_info_t *dev_list;
+
+ *devices = NULL;
+ *count = 0;
+
+ if (usbmuxd_get_device_list(&dev_list) < 0) {
+ log_debug_msg("%s: ERROR: usbmuxd is not running!\n", __func__);
+ return IPHONE_E_NO_DEVICE;
+ }
+
+ char **newlist = NULL;
+ int i, newcount = 0;
+
+ for (i = 0; dev_list[i].handle > 0; i++) {
+ newlist = realloc(*devices, sizeof(char*) * (newcount+1));
+ newlist[newcount++] = strdup(dev_list[i].uuid);
+ *devices = newlist;
+ }
+ usbmuxd_free_device_list(dev_list);
+
+ *count = newcount;
+ newlist = realloc(*devices, sizeof(char*) * (newcount+1));
+ newlist[newcount] = NULL;
+ *devices = newlist;
+
+ return IPHONE_E_SUCCESS;
}
-iphone_error_t iphone_device_get_handle(iphone_device_t device, uint32_t *handle)
+/**
+ * Free a list of device uuids.
+ *
+ * @param devices List of uuids to free.
+ *
+ * @return Always returnes IPHONE_E_SUCCESS.
+ */
+iphone_error_t iphone_free_device_list(char **devices)
{
- if (!device)
- return IPHONE_E_INVALID_ARG;
-
- *handle = device->handle;
+ if (devices) {
+ int i = 0;
+ while (devices[i++]) {
+ free(devices[i]);
+ }
+ free(devices);
+ }
return IPHONE_E_SUCCESS;
}
-iphone_error_t iphone_device_get_uuid(iphone_device_t device, char **uuid)
+/**
+ * Creates an iphone_device_t structure for the device specified by uuid,
+ * if the device is available.
+ *
+ * @note The resulting iphone_device_t structure has to be freed with
+ * iphone_device_free() if it is no longer used.
+ *
+ * @param device Upon calling this function, a pointer to a location of type
+ * iphone_device_t. On successful return, this location will be populated.
+ * @param uuid The UUID to match.
+ *
+ * @return IPHONE_E_SUCCESS if ok, otherwise an error code.
+ */
+iphone_error_t iphone_device_new(iphone_device_t * device, const char *uuid)
{
- if (!device)
- return IPHONE_E_INVALID_ARG;
+ usbmuxd_device_info_t muxdev;
+ int res = usbmuxd_get_device_by_uuid(uuid, &muxdev);
+ if (res > 0) {
+ iphone_device_t phone = (iphone_device_t) malloc(sizeof(struct iphone_device_int));
+ phone->uuid = strdup(muxdev.uuid);
+ phone->conn_type = CONNECTION_USBMUXD;
+ phone->conn_data = (void*)muxdev.handle;
+ *device = phone;
+ return IPHONE_E_SUCCESS;
+ }
+ /* other connection types could follow here */
- *uuid = strdup(device->serial_number);
- return IPHONE_E_SUCCESS;
+ return IPHONE_E_NO_DEVICE;
}
/** Cleans up an iPhone structure, then frees the structure itself.
* This is a library-level function; deals directly with the iPhone to tear
* down relations, but otherwise is mostly internal.
*
- * @param phone A pointer to an iPhone structure.
+ * @param device A pointer to an iPhone structure.
*/
iphone_error_t iphone_device_free(iphone_device_t device)
{
@@ -126,8 +184,189 @@ iphone_error_t iphone_device_free(iphone_device_t device)
ret = IPHONE_E_SUCCESS;
- free(device->serial_number);
+ free(device->uuid);
+
+ if (device->conn_type == CONNECTION_USBMUXD) {
+ device->conn_data = 0;
+ }
+ if (device->conn_data) {
+ free(device->conn_data);
+ }
free(device);
return ret;
}
+/**
+ * Set up a connection to the given device.
+ *
+ * @param device The device to connect to.
+ * @param dst_port The destination port to connect to.
+ * @param connection Pointer to an iphone_connection_t that will be filled
+ * with the necessary data of the connection.
+ *
+ * @return IPHONE_E_SUCCESS if ok, otherwise an error code.
+ */
+iphone_error_t iphone_device_connect(iphone_device_t device, uint16_t dst_port, iphone_connection_t *connection)
+{
+ if (!device) {
+ return IPHONE_E_INVALID_ARG;
+ }
+
+ if (device->conn_type == CONNECTION_USBMUXD) {
+ int sfd = usbmuxd_connect((uint32_t)(device->conn_data), dst_port);
+ if (sfd < 0) {
+ log_debug_msg("%s: ERROR: Connecting to usbmuxd failed: %d (%s)\n", __func__, sfd, strerror(-sfd));
+ return IPHONE_E_UNKNOWN_ERROR;
+ }
+ iphone_connection_t new_connection = (iphone_connection_t)malloc(sizeof(struct iphone_connection_int));
+ new_connection->type = CONNECTION_USBMUXD;
+ new_connection->data = (void*)sfd;
+ *connection = new_connection;
+ return IPHONE_E_SUCCESS;
+ } else {
+ log_debug_msg("%s: Unknown connection type %d\n", __func__, device->conn_type);
+ }
+
+ return IPHONE_E_UNKNOWN_ERROR;
+}
+
+/**
+ * Disconnect from the device and clean up the connection structure.
+ *
+ * @param connection The connection to close.
+ *
+ * @return IPHONE_E_SUCCESS if ok, otherwise an error code.
+ */
+iphone_error_t iphone_device_disconnect(iphone_connection_t connection)
+{
+ if (!connection) {
+ return IPHONE_E_INVALID_ARG;
+ }
+ iphone_error_t result = IPHONE_E_UNKNOWN_ERROR;
+ if (connection->type == CONNECTION_USBMUXD) {
+ usbmuxd_disconnect((int)(connection->data));
+ result = IPHONE_E_SUCCESS;
+ } else {
+ log_debug_msg("%s: Unknown connection type %d\n", __func__, connection->type);
+ }
+ free(connection);
+ return result;
+}
+
+/**
+ * Send data to a device via the given connection.
+ *
+ * @param connection The connection to send data over.
+ * @param data Buffer with data to send.
+ * @param len Size of the buffer to send.
+ * @param sent_bytes Pointer to an uint32_t that will be filled
+ * with the number of bytes actually sent.
+ *
+ * @return IPHONE_E_SUCCESS if ok, otherwise an error code.
+ */
+iphone_error_t iphone_device_send(iphone_connection_t connection, const char *data, uint32_t len, uint32_t *sent_bytes)
+{
+ if (!connection || !data) {
+ return IPHONE_E_INVALID_ARG;
+ }
+
+ if (connection->type == CONNECTION_USBMUXD) {
+ int res = usbmuxd_send((int)(connection->data), data, len, sent_bytes);
+ if (res < 0) {
+ log_debug_msg("%s: ERROR: usbmuxd_send returned %d (%s)\n", __func__, res, strerror(-res));
+ return IPHONE_E_UNKNOWN_ERROR;
+ }
+ return IPHONE_E_SUCCESS;
+ } else {
+ log_debug_msg("%s: Unknown connection type %d\n", __func__, connection->type);
+ }
+ return IPHONE_E_UNKNOWN_ERROR;
+}
+
+/**
+ * Receive data from a device via the given connection.
+ * This function will return after the given timeout even if no data has been
+ * received.
+ *
+ * @param connection The connection to receive data from.
+ * @param data Buffer that will be filled with the received data.
+ * This buffer has to be large enough to hold len bytes.
+ * @param len Buffer size or number of bytes to receive.
+ * @param recv_bytes Number of bytes actually received.
+ * @param timeout Timeout in milliseconds after which this function should
+ * return even if no data has been received.
+ *
+ * @return IPHONE_E_SUCCESS if ok, otherwise an error code.
+ */
+iphone_error_t iphone_device_recv_timeout(iphone_connection_t connection, char *data, uint32_t len, uint32_t *recv_bytes, unsigned int timeout)
+{
+ if (!connection) {
+ return IPHONE_E_INVALID_ARG;
+ }
+
+ if (connection->type == CONNECTION_USBMUXD) {
+ int res = usbmuxd_recv_timeout((int)(connection->data), data, len, recv_bytes, timeout);
+ if (res < 0) {
+ log_debug_msg("%s: ERROR: usbmuxd_recv_timeout returned %d (%s)\n", __func__, res, strerror(-res));
+ return IPHONE_E_UNKNOWN_ERROR;
+ }
+ } else {
+ log_debug_msg("%s: Unknown connection type %d\n", __func__, connection->type);
+ }
+ return IPHONE_E_UNKNOWN_ERROR;
+}
+
+/**
+ * Receive data from a device via the given connection.
+ * This function is like iphone_device_recv_timeout, but with a predefined
+ * reasonable timeout.
+ *
+ * @param connection The connection to receive data from.
+ * @param data Buffer that will be filled with the received data.
+ * This buffer has to be large enough to hold len bytes.
+ * @param len Buffer size or number of bytes to receive.
+ * @param recv_bytes Number of bytes actually received.
+ *
+ * @return IPHONE_E_SUCCESS if ok, otherwise an error code.
+ */
+iphone_error_t iphone_device_recv(iphone_connection_t connection, char *data, uint32_t len, uint32_t *recv_bytes)
+{
+ if (!connection) {
+ return -EINVAL;
+ }
+
+ if (connection->type == CONNECTION_USBMUXD) {
+ int res = usbmuxd_recv((int)(connection->data), data, len, recv_bytes);
+ if (res < 0) {
+ log_debug_msg("%s: ERROR: usbmuxd_recv returned %d (%s)\n", __func__, res, strerror(-res));
+ return IPHONE_E_UNKNOWN_ERROR;
+ }
+ } else {
+ log_debug_msg("%s: Unknown connection type %d\n", __func__, connection->type);
+ }
+ return IPHONE_E_UNKNOWN_ERROR;
+}
+
+iphone_error_t iphone_device_get_handle(iphone_device_t device, uint32_t *handle)
+{
+ if (!device)
+ return IPHONE_E_INVALID_ARG;
+
+ if (device->conn_type == CONNECTION_USBMUXD) {
+ *handle = (uint32_t)device->conn_data;
+ return IPHONE_E_SUCCESS;
+ } else {
+ log_debug_msg("%s: Unknown connection type %d\n", __func__, device->conn_type);
+ }
+ return IPHONE_E_UNKNOWN_ERROR;
+}
+
+iphone_error_t iphone_device_get_uuid(iphone_device_t device, char **uuid)
+{
+ if (!device)
+ return IPHONE_E_INVALID_ARG;
+
+ *uuid = strdup(device->uuid);
+ return IPHONE_E_SUCCESS;
+}
+