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* Copyright (C) 2005-2007 Takahiro Hirofuchi
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#include <sys/types.h>
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#include <arpa/inet.h>
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#include <sys/socket.h>
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#include <netinet/in.h>
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#include "usbip_network.h"
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static const char version[] = PACKAGE_STRING;
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static int send_reply_devlist(int sockfd)
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struct usbip_exported_device *edev;
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struct op_devlist_reply reply;
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/* how many devices are exported ? */
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dlist_for_each_data(stub_driver->edev_list, edev, struct usbip_exported_device) {
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dbg("%d devices are exported", reply.ndev);
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ret = usbip_send_op_common(sockfd, OP_REP_DEVLIST, ST_OK);
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err("send op_common");
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PACK_OP_DEVLIST_REPLY(1, &reply);
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ret = usbip_send(sockfd, (void *) &reply, sizeof(reply));
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err("send op_devlist_reply");
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dlist_for_each_data(stub_driver->edev_list, edev, struct usbip_exported_device) {
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struct usb_device pdu_udev;
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dump_usb_device(&edev->udev);
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memcpy(&pdu_udev, &edev->udev, sizeof(pdu_udev));
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pack_usb_device(1, &pdu_udev);
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ret = usbip_send(sockfd, (void *) &pdu_udev, sizeof(pdu_udev));
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for (int i=0; i < edev->udev.bNumInterfaces; i++) {
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struct usb_interface pdu_uinf;
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dump_usb_interface(&edev->uinf[i]);
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memcpy(&pdu_uinf, &edev->uinf[i], sizeof(pdu_uinf));
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pack_usb_interface(1, &pdu_uinf);
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ret = usbip_send(sockfd, (void *) &pdu_uinf, sizeof(pdu_uinf));
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static int recv_request_devlist(int sockfd)
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struct op_devlist_request req;
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bzero(&req, sizeof(req));
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ret = usbip_recv(sockfd, (void *) &req, sizeof(req));
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err("recv devlist request");
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ret = send_reply_devlist(sockfd);
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err("send devlist reply");
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static int recv_request_import(int sockfd)
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struct op_import_request req;
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struct op_common reply;
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struct usbip_exported_device *edev;
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bzero(&req, sizeof(req));
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bzero(&reply, sizeof(reply));
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ret = usbip_recv(sockfd, (void *) &req, sizeof(req));
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err("recv import request");
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PACK_OP_IMPORT_REQUEST(0, &req);
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dlist_for_each_data(stub_driver->edev_list, edev, struct usbip_exported_device) {
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if (!strncmp(req.busid, edev->udev.busid, SYSFS_BUS_ID_SIZE)) {
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dbg("found requested device %s", req.busid);
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/* should set TCP_NODELAY for usbip */
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usbip_set_nodelay(sockfd);
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/* export_device needs a TCP/IP socket descriptor */
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ret = usbip_stub_export_device(edev, sockfd);
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info("not found requested device %s", req.busid);
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ret = usbip_send_op_common(sockfd, OP_REP_IMPORT, (!error ? ST_OK : ST_NA));
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err("send import reply");
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struct usb_device pdu_udev;
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memcpy(&pdu_udev, &edev->udev, sizeof(pdu_udev));
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pack_usb_device(1, &pdu_udev);
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ret = usbip_send(sockfd, (void *) &pdu_udev, sizeof(pdu_udev));
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static int recv_pdu(int sockfd)
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uint16_t code = OP_UNSPEC;
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ret = usbip_recv_op_common(sockfd, &code);
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err("recv op_common, %d", ret);
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ret = usbip_stub_refresh_device_list();
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ret = recv_request_devlist(sockfd);
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ret = recv_request_import(sockfd);
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err("unknown op_code, %d", code);
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static void log_addrinfo(struct addrinfo *ai)
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char hbuf[NI_MAXHOST];
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char sbuf[NI_MAXSERV];
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ret = getnameinfo(ai->ai_addr, ai->ai_addrlen, hbuf, sizeof(hbuf),
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sbuf, sizeof(sbuf), NI_NUMERICHOST | NI_NUMERICSERV);
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err("getnameinfo, %s", gai_strerror(ret));
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info("listen at [%s]:%s", hbuf, sbuf);
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static struct addrinfo *my_getaddrinfo(char *host, int ai_family)
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struct addrinfo hints, *ai_head;
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bzero(&hints, sizeof(hints));
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hints.ai_family = ai_family;
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hints.ai_socktype = SOCK_STREAM;
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hints.ai_flags = AI_PASSIVE;
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ret = getaddrinfo(host, USBIP_PORT_STRING, &hints, &ai_head);
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err("%s: %s", USBIP_PORT_STRING, gai_strerror(ret));
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static int listen_all_addrinfo(struct addrinfo *ai_head, int lsock[])
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int n = 0; /* number of sockets */
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for (ai = ai_head; ai && n < MAXSOCK; ai = ai->ai_next) {
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lsock[n] = socket(ai->ai_family, ai->ai_socktype, ai->ai_protocol);
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usbip_set_reuseaddr(lsock[n]);
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usbip_set_nodelay(lsock[n]);
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if (lsock[n] >= FD_SETSIZE) {
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ret = bind(lsock[n], ai->ai_addr, ai->ai_addrlen);
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ret = listen(lsock[n], SOMAXCONN);
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/* next if succeed */
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err("no socket to listen to");
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dbg("listen %d address%s", n, (n==1)?"":"es");
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static int tcpd_auth(int csock)
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struct request_info request;
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request_init(&request, RQ_DAEMON, "usbipd", RQ_FILE, csock, 0);
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ret = hosts_access(&request);
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static int my_accept(int lsock)
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struct sockaddr_storage ss;
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socklen_t len = sizeof(ss);
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char host[NI_MAXHOST], port[NI_MAXSERV];
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bzero(&ss, sizeof(ss));
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csock = accept(lsock, (struct sockaddr *) &ss, &len);
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ret = getnameinfo((struct sockaddr *) &ss, len,
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host, sizeof(host), port, sizeof(port),
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(NI_NUMERICHOST | NI_NUMERICSERV));
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err("getnameinfo, %s", gai_strerror(ret));
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ret = tcpd_auth(csock);
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info("deny access from %s", host);
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info("connected from %s:%s", host, port);
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GMainLoop *main_loop;
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static void signal_handler(int i)
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dbg("signal catched, code %d", i);
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g_main_loop_quit(main_loop);
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static void set_signal(void)
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struct sigaction act;
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bzero(&act, sizeof(act));
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act.sa_handler = signal_handler;
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sigemptyset(&act.sa_mask);
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sigaction(SIGTERM, &act, NULL);
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sigaction(SIGINT, &act, NULL);
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gboolean process_comming_request(GIOChannel *gio, GIOCondition condition,
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gpointer data __attribute__((unused)))
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if (condition & (G_IO_ERR | G_IO_HUP | G_IO_NVAL))
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g_error("unknown condition");
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if (condition & G_IO_IN) {
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lsock = g_io_channel_unix_get_fd(gio);
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csock = my_accept(lsock);
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ret = recv_pdu(csock);
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err("process recieved pdu");
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static void do_standalone_mode(gboolean daemonize)
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struct addrinfo *ai_head;
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ret = usbip_names_init(USBIDS_FILE);
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ret = usbip_stub_driver_open();
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g_error("driver open failed");
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g_error("daemonizing failed: %s", g_strerror(errno));
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usbip_use_syslog = 1;
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ai_head = my_getaddrinfo(NULL, PF_UNSPEC);
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n = listen_all_addrinfo(ai_head, lsock);
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g_error("no socket to listen to");
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for (int i = 0; i < n; i++) {
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gio = g_io_channel_unix_new(lsock[i]);
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g_io_add_watch(gio, (G_IO_IN | G_IO_ERR | G_IO_HUP | G_IO_NVAL),
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process_comming_request, NULL);
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info("usbipd start (%s)", version);
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main_loop = g_main_loop_new(FALSE, FALSE);
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g_main_loop_run(main_loop);
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freeaddrinfo(ai_head);
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usbip_stub_driver_close();
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static const char help_message[] = "\
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Usage: usbipd [options] \n\
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Run as a daemon process. \n\
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Print debugging information. \n\
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Print this help. \n";
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static void show_help(void)
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printf("%s", help_message);
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static const struct option longopts[] = {
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{"daemon", no_argument, NULL, 'D'},
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{"debug", no_argument, NULL, 'd'},
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{"version", no_argument, NULL, 'v'},
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{"help", no_argument, NULL, 'h'},
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int main(int argc, char *argv[])
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gboolean daemonize = FALSE;
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cmd_standalone_mode = 1,
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} cmd = cmd_standalone_mode;
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usbip_use_stderr = 1;
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usbip_use_syslog = 0;
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g_warning("running non-root?");
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c = getopt_long(argc, argv, "vhdD", longopts, &index);
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case cmd_standalone_mode:
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do_standalone_mode(daemonize);
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printf("%s\n", version);