Support for new SBServices interface

This lockdown service has been introduced in firmware 3.1 and allows to
re-arrange the Spr*ngboard icons from the computer.

[#99 state:resolved]

Signed-off-by: Matt Colyer <matt@colyer.name>

3 files changed, 325 insertions, 0 deletions

diff --git a/src/Makefile.am b/src/Makefile.am
index ce1d237..d351a8a 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -8,6 +8,7 @@ libiphone_la_SOURCES = iphone.c iphone.h \
 		       lockdown.c lockdown.h\
 		       AFC.c AFC.h\
 		       NotificationProxy.c NotificationProxy.h\
+		       SBServices.c SBServices.h\
 		       userpref.c userpref.h\
 		       utils.c utils.h\
 		       MobileSync.c MobileSync.h
diff --git a/src/SBServices.c b/src/SBServices.c
new file mode 100644
index 0000000..9849415
--- /dev/null
+++ b/src/SBServices.c
@@ -0,0 +1,291 @@
+/*
+ * SBServices.c
+ * SpringBoard Services implementation.
+ *
+ * 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
+ * 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 <stdlib.h>
+#include <unistd.h>
+#include <arpa/inet.h>
+#include <plist/plist.h>
+
+#include "SBServices.h"
+#include "iphone.h"
+#include "utils.h"
+
+/** Locks an sbservices client, done for thread safety stuff.
+ *
+ * @param client The sbservices client to lock.
+ */
+static void sbs_lock(sbservices_client_t client)
+{
+	log_debug_msg("SBServices: Locked\n");
+	g_mutex_lock(client->mutex);
+}
+
+/** Unlocks an sbservices client, done for thread safety stuff.
+ * 
+ * @param client The sbservices client to unlock
+ */
+static void sbs_unlock(sbservices_client_t client)
+{
+	log_debug_msg("SBServices: Unlocked\n");
+	g_mutex_unlock(client->mutex);
+}
+
+sbservices_error_t sbservices_client_new(iphone_device_t device, int dst_port, sbservices_client_t *client)
+{
+	/* makes sure thread environment is available */
+	if (!g_thread_supported())
+		g_thread_init(NULL);
+
+	if (!device)
+		return SBSERVICES_E_INVALID_ARG;
+
+	/* Attempt connection */
+	iphone_connection_t connection = NULL;
+	if (iphone_device_connect(device, dst_port, &connection) != IPHONE_E_SUCCESS) {
+		return SBSERVICES_E_CONN_FAILED;
+	}
+
+	sbservices_client_t client_loc = (sbservices_client_t) malloc(sizeof(struct sbservices_client_int));
+	client_loc->connection = connection;
+	client_loc->mutex = g_mutex_new();
+
+	*client = client_loc;
+	return SBSERVICES_E_SUCCESS;
+}
+
+sbservices_error_t sbservices_client_free(sbservices_client_t client)
+{
+	if (!client)
+		return SBSERVICES_E_INVALID_ARG;
+
+	iphone_device_disconnect(client->connection);
+	client->connection = NULL;
+	if (client->mutex) {
+		g_mutex_free(client->mutex);
+	}
+	free(client);
+
+	return SBSERVICES_E_SUCCESS;
+}
+
+/**
+ * Sends a binary plist to the device using the connection specified in client.
+ * This function is only used internally.
+ *
+ * @param client InstallationProxy to send data to
+ * @param dict plist to send
+ *
+ * @return SBSERVICES_E_SUCCESS on success, SBSERVICES_E_INVALID_ARG when
+ *     client or dict are NULL, SBSERVICES_E_PLIST_ERROR when dict is not a
+ *     valid plist, or SBSERVICES_E_UNKNOWN_ERROR when an unspecified error
+ *     occurs.
+ */
+static sbservices_error_t sbservices_plist_send(sbservices_client_t client, plist_t dict)
+{
+	char *content = NULL;
+	uint32_t length = 0;
+	uint32_t nlen = 0;
+	int bytes = 0;
+	sbservices_error_t res = SBSERVICES_E_UNKNOWN_ERROR;
+
+	if (!client || !dict) {
+		return SBSERVICES_E_INVALID_ARG;
+	}
+
+	plist_to_bin(dict, &content, &length);
+
+	if (!content || length == 0) {
+		return SBSERVICES_E_PLIST_ERROR;
+	}
+
+	nlen = htonl(length);
+	log_debug_msg("%s: sending %d bytes\n", __func__, 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) {
+			if ((uint32_t)bytes == length) {
+				res = SBSERVICES_E_SUCCESS;
+			} else {
+				log_debug_msg("%s: ERROR: Could not send all data (%d of %d)!\n", __func__, bytes, length);
+			}
+		}
+	}
+	if (bytes <= 0) {
+		log_debug_msg("%s: ERROR: sending to device failed.\n", __func__);
+	}
+
+	free(content);
+
+	return res;
+}
+
+sbservices_error_t sbservices_get_icon_state(sbservices_client_t client, plist_t *state)
+{
+	if (!client || !client->connection || !state)
+		return SBSERVICES_E_INVALID_ARG;
+
+	sbservices_error_t res = SBSERVICES_E_UNKNOWN_ERROR;
+	uint32_t pktlen = 0;
+	uint32_t bytes = 0;
+
+	plist_t dict = plist_new_dict();
+	plist_dict_insert_item(dict, "command", plist_new_string("getIconState"));
+
+	sbs_lock(client);
+
+	res = sbservices_plist_send(client, dict);
+	plist_free(dict);
+	if (res != SBSERVICES_E_SUCCESS) {
+		log_debug_msg("%s: could not send plist\n", __func__);
+		goto leave_unlock;
+	}
+
+	iphone_device_recv(client->connection, (char*)&pktlen, sizeof(pktlen), &bytes);
+	log_debug_msg("%s: initial read=%i\n", __func__, bytes);
+	if (bytes < 4) {
+		log_debug_msg("%s: initial read failed!\n");
+		res = 0;
+	} else {
+		if ((char)pktlen == 0) {
+			char *content = NULL;
+			uint32_t curlen = 0;
+			pktlen = ntohl(pktlen);
+			log_debug_msg("%s: %d bytes following\n", __func__, pktlen);
+			content = (char*)malloc(pktlen);
+			log_debug_msg("pointer %p\n", content);
+
+			while (curlen < pktlen) {
+				iphone_device_recv(client->connection, content+curlen, pktlen-curlen, &bytes);
+				if (bytes <= 0) {
+					res = SBSERVICES_E_UNKNOWN_ERROR;
+					break;
+				}
+				log_debug_msg("%s: received %d bytes\n", __func__, bytes);
+				curlen += bytes;
+			}
+			log_debug_buffer(content, pktlen);
+			plist_from_bin(content, pktlen, state);
+			res = SBSERVICES_E_SUCCESS;
+			free(content);
+		} else {
+			res = SBSERVICES_E_UNKNOWN_ERROR;
+		}
+	}
+
+leave_unlock:
+	sbs_unlock(client);
+	return res;
+}
+
+sbservices_error_t sbservices_set_icon_state(sbservices_client_t client, plist_t newstate)
+{
+	if (!client || !client->connection || !newstate)
+		return SBSERVICES_E_INVALID_ARG;
+
+	sbservices_error_t res = SBSERVICES_E_UNKNOWN_ERROR;
+
+	plist_t dict = plist_new_dict();
+	plist_dict_insert_item(dict, "command", plist_new_string("setIconState"));
+	plist_dict_insert_item(dict, "iconState", plist_copy(newstate));
+
+	sbs_lock(client);
+
+	res = sbservices_plist_send(client, dict);
+	plist_free(dict);
+	if (res != SBSERVICES_E_SUCCESS) {
+		log_debug_msg("%s: could not send plist\n", __func__);
+		goto leave_unlock;
+	}
+	// NO RESPONSE
+
+leave_unlock:
+	sbs_unlock(client);
+	return res;
+}
+
+sbservices_error_t sbservices_get_icon_pngdata(sbservices_client_t client, const char *bundleId, char **pngdata, uint64_t *pngsize)
+{
+	if (!client || !client->connection || !pngdata)
+		return SBSERVICES_E_INVALID_ARG;
+
+	sbservices_error_t res = SBSERVICES_E_UNKNOWN_ERROR;
+	uint32_t pktlen = 0;
+	uint32_t bytes = 0;
+
+	plist_t dict = plist_new_dict();
+	plist_dict_insert_item(dict, "command", plist_new_string("getIconPNGData"));
+	plist_dict_insert_item(dict, "bundleId", plist_new_string(bundleId));
+
+	sbs_lock(client);
+
+	res = sbservices_plist_send(client, dict);
+	plist_free(dict);
+	if (res != SBSERVICES_E_SUCCESS) {
+		log_debug_msg("%s: could not send plist\n", __func__);
+		goto leave_unlock;
+	}
+
+	iphone_device_recv(client->connection, (char*)&pktlen, sizeof(pktlen), &bytes);
+	log_debug_msg("%s: initial read=%i\n", __func__, bytes);
+	if (bytes < 4) {
+		log_debug_msg("%s: initial read failed!\n");
+		res = 0;
+	} else {
+		if ((char)pktlen == 0) {
+			char *content = NULL;
+			uint32_t curlen = 0;
+			pktlen = ntohl(pktlen);
+			log_debug_msg("%s: %d bytes following\n", __func__, pktlen);
+			content = (char*)malloc(pktlen);
+			log_debug_msg("pointer %p\n", content);
+
+			while (curlen < pktlen) {
+				iphone_device_recv(client->connection, content+curlen, pktlen-curlen, &bytes);
+				if (bytes <= 0) {
+					res = SBSERVICES_E_UNKNOWN_ERROR;
+					break;
+				}
+				log_debug_msg("%s: received %d bytes\n", __func__, bytes);
+				curlen += bytes;
+			}
+			log_debug_buffer(content, pktlen);
+			plist_t pngdict = NULL;
+			plist_from_bin(content, pktlen, &pngdict);
+			plist_t node = plist_dict_get_item(pngdict, "pngData");
+			if (node) {
+				plist_get_data_val(node, pngdata, pngsize);
+			}
+			plist_free(pngdict);
+			res = SBSERVICES_E_SUCCESS;
+			free(content);
+		} else {
+			res = SBSERVICES_E_UNKNOWN_ERROR;
+		}
+	}
+
+leave_unlock:
+	sbs_unlock(client);
+	return res;
+
+}
+
diff --git a/src/SBServices.h b/src/SBServices.h
new file mode 100644
index 0000000..8f923b9
--- /dev/null
+++ b/src/SBServices.h
@@ -0,0 +1,33 @@
+/*
+ * SBServices.h
+ * SpringBoard Services header file.
+ *
+ * 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
+ * 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 
+ */
+#ifndef ISBSERVICES_H
+#define ISBSERVICES_H
+
+#include <glib.h>
+
+#include "libiphone/sbservices.h"
+
+struct sbservices_client_int {
+	iphone_connection_t connection;
+	GMutex *mutex;
+};
+
+#endif