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-rw-r--r--src/Makefile.am3
-rw-r--r--src/bt_packet_logger.c235
-rw-r--r--src/bt_packet_logger.h36
3 files changed, 273 insertions, 1 deletions
diff --git a/src/Makefile.am b/src/Makefile.am
index 13221b9..1c80ed6 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -57,7 +57,8 @@ libimobiledevice_1_0_la_SOURCES = \
preboard.c preboard.h \
companion_proxy.c companion_proxy.h \
reverse_proxy.c reverse_proxy.h \
- syslog_relay.c syslog_relay.h
+ syslog_relay.c syslog_relay.h \
+ bt_packet_logger.c bt_packet_logger.h
if WIN32
libimobiledevice_1_0_la_LDFLAGS += -avoid-version -static-libgcc
diff --git a/src/bt_packet_logger.c b/src/bt_packet_logger.c
new file mode 100644
index 0000000..5391825
--- /dev/null
+++ b/src/bt_packet_logger.c
@@ -0,0 +1,235 @@
+/*
+ * bt_packet_logger.c
+ * com.apple.bt_packet_logger service implementation.
+ *
+ * Copyright (c) 2021 Geoffrey Kruse, 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
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+#include <string.h>
+#include <stdlib.h>
+
+#include "bt_packet_logger.h"
+#include "lockdown.h"
+#include "common/debug.h"
+
+struct bt_packet_logger_worker_thread {
+ bt_packet_logger_client_t client;
+ bt_packet_logger_receive_cb_t cbfunc;
+ void *user_data;
+};
+
+/**
+ * Convert a service_error_t value to a bt_packet_logger_error_t value.
+ * Used internally to get correct error codes.
+ *
+ * @param err An service_error_t error code
+ *
+ * @return A matching bt_packet_logger_error_t error code,
+ * BT_PACKET_LOGGER_E_UNKNOWN_ERROR otherwise.
+ */
+static bt_packet_logger_error_t bt_packet_logger_error(service_error_t err)
+{
+ switch (err) {
+ case SERVICE_E_SUCCESS:
+ return BT_PACKET_LOGGER_E_SUCCESS;
+ case SERVICE_E_INVALID_ARG:
+ return BT_PACKET_LOGGER_E_INVALID_ARG;
+ case SERVICE_E_MUX_ERROR:
+ return BT_PACKET_LOGGER_E_MUX_ERROR;
+ case SERVICE_E_SSL_ERROR:
+ return BT_PACKET_LOGGER_E_SSL_ERROR;
+ case SERVICE_E_NOT_ENOUGH_DATA:
+ return BT_PACKET_LOGGER_E_NOT_ENOUGH_DATA;
+ case SERVICE_E_TIMEOUT:
+ return BT_PACKET_LOGGER_E_TIMEOUT;
+ default:
+ break;
+ }
+ return BT_PACKET_LOGGER_E_UNKNOWN_ERROR;
+}
+
+LIBIMOBILEDEVICE_API bt_packet_logger_error_t bt_packet_logger_client_new(idevice_t device, lockdownd_service_descriptor_t service, bt_packet_logger_client_t * client)
+{
+ *client = NULL;
+
+ if (!device || !service || service->port == 0 || !client || *client) {
+ debug_info("Incorrect parameter passed to bt_packet_logger_client_new.");
+ return BT_PACKET_LOGGER_E_INVALID_ARG;
+ }
+
+ debug_info("Creating bt_packet_logger_client, port = %d.", service->port);
+
+ service_client_t parent = NULL;
+ bt_packet_logger_error_t ret = bt_packet_logger_error(service_client_new(device, service, &parent));
+ if (ret != BT_PACKET_LOGGER_E_SUCCESS) {
+ debug_info("Creating base service client failed. Error: %i", ret);
+ return ret;
+ }
+
+ bt_packet_logger_client_t client_loc = (bt_packet_logger_client_t) malloc(sizeof(struct bt_packet_logger_client_private));
+ client_loc->parent = parent;
+ client_loc->worker = THREAD_T_NULL;
+
+ *client = client_loc;
+
+ debug_info("bt_packet_logger_client successfully created.");
+ return 0;
+}
+
+LIBIMOBILEDEVICE_API bt_packet_logger_error_t bt_packet_logger_client_start_service(idevice_t device, bt_packet_logger_client_t * client, const char* label)
+{
+ bt_packet_logger_error_t err = BT_PACKET_LOGGER_E_UNKNOWN_ERROR;
+ service_client_factory_start_service(device, BT_PACKETLOGGER_SERVICE_NAME, (void**)client, label, SERVICE_CONSTRUCTOR(bt_packet_logger_client_new), &err);
+ return err;
+}
+
+LIBIMOBILEDEVICE_API bt_packet_logger_error_t bt_packet_logger_client_free(bt_packet_logger_client_t client)
+{
+ if (!client)
+ return BT_PACKET_LOGGER_E_INVALID_ARG;
+ bt_packet_logger_stop_capture(client);
+ bt_packet_logger_error_t err = bt_packet_logger_error(service_client_free(client->parent));
+ free(client);
+
+ return err;
+}
+
+LIBIMOBILEDEVICE_API bt_packet_logger_error_t bt_packet_logger_receive(bt_packet_logger_client_t client, char* data, uint32_t size, uint32_t *received)
+{
+ return bt_packet_logger_receive_with_timeout(client, data, size, received, 1000);
+}
+
+LIBIMOBILEDEVICE_API bt_packet_logger_error_t bt_packet_logger_receive_with_timeout(bt_packet_logger_client_t client, char* data, uint32_t size, uint32_t *received, unsigned int timeout)
+{
+ bt_packet_logger_error_t res = BT_PACKET_LOGGER_E_UNKNOWN_ERROR;
+ int bytes = 0;
+
+ if (!client || !data || (size == 0)) {
+ return BT_PACKET_LOGGER_E_INVALID_ARG;
+ }
+
+ res = bt_packet_logger_error(service_receive_with_timeout(client->parent, data, size, (uint32_t*)&bytes, timeout));
+ if (res != BT_PACKET_LOGGER_E_SUCCESS && res != BT_PACKET_LOGGER_E_TIMEOUT && res != BT_PACKET_LOGGER_E_NOT_ENOUGH_DATA) {
+ debug_info("Could not read data, error %d", res);
+ }
+ if (received) {
+ *received = (uint32_t)bytes;
+ }
+
+ return res;
+}
+
+void *bt_packet_logger_worker(void *arg)
+{
+ bt_packet_logger_error_t ret = BT_PACKET_LOGGER_E_UNKNOWN_ERROR;
+ struct bt_packet_logger_worker_thread *btwt = (struct bt_packet_logger_worker_thread*)arg;
+
+ if (!btwt)
+ return NULL;
+
+ debug_info("Running");
+
+ while (btwt->client->parent) {
+ uint32_t bytes = 0;
+ uint16_t len;
+
+ ret = bt_packet_logger_receive_with_timeout(btwt->client, &len, 2, &bytes, 100);
+
+ if (ret == BT_PACKET_LOGGER_E_TIMEOUT || ret == BT_PACKET_LOGGER_E_NOT_ENOUGH_DATA || ((bytes == 0) && (ret == BT_PACKET_LOGGER_E_SUCCESS))) {
+ continue;
+ } else if (ret < 0) {
+ debug_info("Connection to bt packet logger interrupted");
+ break;
+ }
+
+ // todo remove magic and move "c" off stack
+ if(bytes > 0 && len > 12) {
+ char c[65535];
+ debug_info("Reading %u bytes\n", len);
+ ret = bt_packet_logger_receive_with_timeout(btwt->client, c, len, &bytes, 500);
+
+ if(len != bytes) {
+ debug_info("Failed Read Expected %u, Received %u\n", len, bytes);
+ continue;
+ }
+
+ if (ret == BT_PACKET_LOGGER_E_TIMEOUT || ret == BT_PACKET_LOGGER_E_NOT_ENOUGH_DATA || ((bytes == 0) && (ret == BT_PACKET_LOGGER_E_SUCCESS))) {
+ continue;
+ } else if (ret < 0) {
+ debug_info("Connection to bt packet logger interrupted");
+ break;
+ }
+
+ btwt->cbfunc(c, len, btwt->user_data);
+ }
+ }
+
+ if (btwt) {
+ free(btwt);
+ }
+
+ debug_info("Exiting");
+
+ return NULL;
+}
+
+LIBIMOBILEDEVICE_API bt_packet_logger_error_t bt_packet_logger_start_capture(bt_packet_logger_client_t client, bt_packet_logger_receive_cb_t callback, void* user_data)
+{
+ if (!client || !callback)
+ return BT_PACKET_LOGGER_E_INVALID_ARG;
+
+ bt_packet_logger_error_t res = BT_PACKET_LOGGER_E_UNKNOWN_ERROR;
+
+ if (client->worker) {
+ debug_info("Another syslog capture thread appears to be running already.");
+ return res;
+ }
+
+ /* start worker thread */
+ struct bt_packet_logger_worker_thread *btwt = (struct bt_packet_logger_worker_thread*)malloc(sizeof(struct bt_packet_logger_worker_thread));
+ if (btwt) {
+ btwt->client = client;
+ btwt->cbfunc = callback;
+ btwt->user_data = user_data;
+
+ if (thread_new(&client->worker, bt_packet_logger_worker, btwt) == 0) {
+ res = BT_PACKET_LOGGER_E_SUCCESS;
+ }
+ }
+
+ return res;
+}
+
+
+LIBIMOBILEDEVICE_API bt_packet_logger_error_t bt_packet_logger_stop_capture(bt_packet_logger_client_t client)
+{
+ if (client->worker) {
+ /* notify thread to finish */
+ service_client_t parent = client->parent;
+ client->parent = NULL;
+ /* join thread to make it exit */
+ thread_join(client->worker);
+ thread_free(client->worker);
+ client->worker = THREAD_T_NULL;
+ client->parent = parent;
+ }
+
+ return BT_PACKET_LOGGER_E_SUCCESS;
+}
diff --git a/src/bt_packet_logger.h b/src/bt_packet_logger.h
new file mode 100644
index 0000000..1ad906d
--- /dev/null
+++ b/src/bt_packet_logger.h
@@ -0,0 +1,36 @@
+/*
+ * bt_packet_logger.h
+ * com.apple.bt_packet_logger service header file.
+ *
+ * Copyright (c) 2021 Geoffrey Kruse, 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 _SYSLOG_RELAY_H
+#define _SYSLOG_RELAY_H
+
+#include "libimobiledevice/bt_packet_logger.h"
+#include "service.h"
+#include "common/thread.h"
+
+struct bt_packet_logger_client_private {
+ service_client_t parent;
+ THREAD_T worker;
+};
+
+void *bt_packet_logger_worker(void *arg);
+
+#endif