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authorGravatar Nikias Bassen2013-09-17 11:00:31 +0200
committerGravatar Nikias Bassen2013-09-17 11:00:31 +0200
commitc45ae1f6b6f53995a5bc99591688102d11ad2148 (patch)
tree03e36986e4ad61f6345c64b7b2f673eebee33816 /tools/iproxy.c
downloadlibusbmuxd-c45ae1f6b6f53995a5bc99591688102d11ad2148.tar.gz
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initial commit of adapted source tree.
Diffstat (limited to 'tools/iproxy.c')
-rw-r--r--tools/iproxy.c281
1 files changed, 281 insertions, 0 deletions
diff --git a/tools/iproxy.c b/tools/iproxy.c
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+++ b/tools/iproxy.c
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+/*
+ iproxy -- proxy that enables tcp service access to iPhone/iPod
+
+Copyright (C) 2009 Nikias Bassen <nikias@gmx.li>
+Copyright (C) 2009 Paul Sladen <libiphone@paul.sladen.org>
+
+Based upon iTunnel source code, Copyright (c) 2008 Jing Su.
+http://www.cs.toronto.edu/~jingsu/itunnel/
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2 of the License, or
+(at your option) any later version.
+
+This program 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 General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+
+TODO: improve code...
+
+*/
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <fcntl.h>
+#include <stddef.h>
+#include <unistd.h>
+#include <errno.h>
+#ifdef WIN32
+#include <windows.h>
+#include <winsock2.h>
+typedef unsigned int socklen_t;
+#else
+#include <sys/socket.h>
+#include <sys/un.h>
+#include <arpa/inet.h>
+#include <pthread.h>
+#include <netinet/in.h>
+#endif
+#include "sock_stuff.h"
+#include "usbmuxd.h"
+
+static uint16_t listen_port = 0;
+static uint16_t device_port = 0;
+
+struct client_data {
+ int fd;
+ int sfd;
+ volatile int stop_ctos;
+ volatile int stop_stoc;
+};
+
+static void *run_stoc_loop(void *arg)
+{
+ struct client_data *cdata = (struct client_data*)arg;
+ int recv_len;
+ int sent;
+ char buffer[131072];
+
+ printf("%s: fd = %d\n", __func__, cdata->fd);
+
+ while (!cdata->stop_stoc && cdata->fd>0 && cdata->sfd>0) {
+ recv_len = recv_buf_timeout(cdata->sfd, buffer, sizeof(buffer), 0, 5000);
+ if (recv_len <= 0) {
+ if (recv_len == 0) {
+ // try again
+ continue;
+ } else {
+ fprintf(stderr, "recv failed: %s\n", strerror(errno));
+ break;
+ }
+ } else {
+// printf("received %d bytes from server\n", recv_len);
+ // send to socket
+ sent = send_buf(cdata->fd, buffer, recv_len);
+ if (sent < recv_len) {
+ if (sent <= 0) {
+ fprintf(stderr, "send failed: %s\n", strerror(errno));
+ break;
+ } else {
+ fprintf(stderr, "only sent %d from %d bytes\n", sent, recv_len);
+ }
+ } else {
+ // sending succeeded, receive from device
+// printf("pushed %d bytes to client\n", sent);
+ }
+ }
+ }
+ close(cdata->fd);
+ cdata->fd = -1;
+ cdata->stop_ctos = 1;
+
+ return NULL;
+}
+
+static void *run_ctos_loop(void *arg)
+{
+ struct client_data *cdata = (struct client_data*)arg;
+ int recv_len;
+ int sent;
+ char buffer[131072];
+#ifdef WIN32
+ HANDLE stoc = NULL;
+#else
+ pthread_t stoc;
+#endif
+
+ printf("%s: fd = %d\n", __func__, cdata->fd);
+
+ cdata->stop_stoc = 0;
+#ifdef WIN32
+ stoc = CreateThread(NULL, 0, (LPTHREAD_START_ROUTINE)run_stoc_loop, cdata, 0, NULL);
+#else
+ pthread_create(&stoc, NULL, run_stoc_loop, cdata);
+#endif
+
+ while (!cdata->stop_ctos && cdata->fd>0 && cdata->sfd>0) {
+ recv_len = recv_buf_timeout(cdata->fd, buffer, sizeof(buffer), 0, 5000);
+ if (recv_len <= 0) {
+ if (recv_len == 0) {
+ // try again
+ continue;
+ } else {
+ fprintf(stderr, "recv failed: %s\n", strerror(errno));
+ break;
+ }
+ } else {
+// printf("pulled %d bytes from client\n", recv_len);
+ // send to local socket
+ sent = send_buf(cdata->sfd, buffer, recv_len);
+ if (sent < recv_len) {
+ if (sent <= 0) {
+ fprintf(stderr, "send failed: %s\n", strerror(errno));
+ break;
+ } else {
+ fprintf(stderr, "only sent %d from %d bytes\n", sent, recv_len);
+ }
+ } else {
+ // sending succeeded, receive from device
+// printf("sent %d bytes to server\n", sent);
+ }
+ }
+ }
+ close(cdata->fd);
+ cdata->fd = -1;
+ cdata->stop_stoc = 1;
+
+#ifdef WIN32
+ WaitForSingleObject(stoc, INFINITE);
+#else
+ pthread_join(stoc, NULL);
+#endif
+
+ return NULL;
+}
+
+static void *acceptor_thread(void *arg)
+{
+ struct client_data *cdata;
+ usbmuxd_device_info_t *dev_list = NULL;
+#ifdef WIN32
+ HANDLE ctos = NULL;
+#else
+ pthread_t ctos;
+#endif
+ int count;
+
+ if (!arg) {
+ fprintf(stderr, "invalid client_data provided!\n");
+ return NULL;
+ }
+
+ cdata = (struct client_data*)arg;
+
+ if ((count = usbmuxd_get_device_list(&dev_list)) < 0) {
+ printf("Connecting to usbmuxd failed, terminating.\n");
+ free(dev_list);
+ return NULL;
+ }
+
+ fprintf(stdout, "Number of available devices == %d\n", count);
+
+ if (dev_list == NULL || dev_list[0].handle == 0) {
+ printf("No connected device found, terminating.\n");
+ free(dev_list);
+ return NULL;
+ }
+
+ fprintf(stdout, "Requesting connecion to device handle == %d (serial: %s), port %d\n", dev_list[0].handle, dev_list[0].udid, device_port);
+
+ cdata->sfd = usbmuxd_connect(dev_list[0].handle, device_port);
+ free(dev_list);
+ if (cdata->sfd < 0) {
+ fprintf(stderr, "Error connecting to device!\n");
+ } else {
+ cdata->stop_ctos = 0;
+#ifdef WIN32
+ ctos = CreateThread(NULL, 0, (LPTHREAD_START_ROUTINE)run_ctos_loop, cdata, 0, NULL);
+ WaitForSingleObject(ctos, INFINITE);
+#else
+ pthread_create(&ctos, NULL, run_ctos_loop, cdata);
+ pthread_join(ctos, NULL);
+#endif
+ }
+
+ if (cdata->fd > 0) {
+ close(cdata->fd);
+ }
+ if (cdata->sfd > 0) {
+ close(cdata->sfd);
+ }
+
+ return NULL;
+}
+
+int main(int argc, char **argv)
+{
+ int mysock = -1;
+
+ if (argc != 3) {
+ printf("usage: %s LOCAL_TCP_PORT DEVICE_TCP_PORT\n", argv[0]);
+ return 0;
+ }
+
+ listen_port = atoi(argv[1]);
+ device_port = atoi(argv[2]);
+
+ if (!listen_port) {
+ fprintf(stderr, "Invalid listen_port specified!\n");
+ return -EINVAL;
+ }
+
+ if (!device_port) {
+ fprintf(stderr, "Invalid device_port specified!\n");
+ return -EINVAL;
+ }
+
+ // first create the listening socket endpoint waiting for connections.
+ mysock = create_socket(listen_port);
+ if (mysock < 0) {
+ fprintf(stderr, "Error creating socket: %s\n", strerror(errno));
+ return -errno;
+ } else {
+#ifdef WIN32
+ HANDLE acceptor = NULL;
+#else
+ pthread_t acceptor;
+#endif
+ struct sockaddr_in c_addr;
+ socklen_t len = sizeof(struct sockaddr_in);
+ struct client_data cdata;
+ int c_sock;
+ while (1) {
+ printf("waiting for connection\n");
+ c_sock = accept(mysock, (struct sockaddr*)&c_addr, &len);
+ if (c_sock) {
+ printf("accepted connection, fd = %d\n", c_sock);
+ cdata.fd = c_sock;
+#ifdef WIN32
+ acceptor = CreateThread(NULL, 0, (LPTHREAD_START_ROUTINE)acceptor_thread, &cdata, 0, NULL);
+ WaitForSingleObject(acceptor, INFINITE);
+#else
+ pthread_create(&acceptor, NULL, acceptor_thread, &cdata);
+ pthread_join(acceptor, NULL);
+#endif
+ } else {
+ break;
+ }
+ }
+ close(c_sock);
+ close(mysock);
+ }
+
+ return 0;
+}