static int send_reply_devlist(int connfd)
{
struct usbip_exported_device *edev;
struct usbip_usb_device pdu_udev;
struct usbip_usb_interface pdu_uinf;
struct op_devlist_reply reply;
int i;
int rc;
reply.ndev = 0;
/* number of exported devices */
dlist_for_each_data(host_driver->edev_list, edev,
struct usbip_exported_device) {
reply.ndev += 1;
}
info("exportable devices: %d", reply.ndev);
rc = usbip_net_send_op_common(connfd, OP_REP_DEVLIST, ST_OK);
if (rc < 0) {
dbg("usbip_net_send_op_common failed: %#0x", OP_REP_DEVLIST);
return -1;
}
PACK_OP_DEVLIST_REPLY(1, &reply);
rc = usbip_net_send(connfd, &reply, sizeof(reply));
if (rc < 0) {
dbg("usbip_net_send failed: %#0x", OP_REP_DEVLIST);
return -1;
}
dlist_for_each_data(host_driver->edev_list, edev,
struct usbip_exported_device) {
dump_usb_device(&edev->udev);
memcpy(&pdu_udev, &edev->udev, sizeof(pdu_udev));
usbip_net_pack_usb_device(1, &pdu_udev);
rc = usbip_net_send(connfd, &pdu_udev, sizeof(pdu_udev));
if (rc < 0) {
dbg("usbip_net_send failed: pdu_udev");
return -1;
}
for (i = 0; i < edev->udev.bNumInterfaces; i++) {
dump_usb_interface(&edev->uinf[i]);
memcpy(&pdu_uinf, &edev->uinf[i], sizeof(pdu_uinf));
usbip_net_pack_usb_interface(1, &pdu_uinf);
rc = usbip_net_send(connfd, &pdu_uinf,
sizeof(pdu_uinf));
if (rc < 0) {
dbg("usbip_net_send failed: pdu_uinf");
return -1;
}
}
}
return 0;
}
static int query_import_device(int sockfd, char *busid)
{
int rc;
struct op_import_request request;
struct op_import_reply reply;
uint16_t code = OP_REP_IMPORT;
memset(&request, 0, sizeof(request));
memset(&reply, 0, sizeof(reply));
/* send a request */
rc = usbip_net_send_op_common(sockfd, OP_REQ_IMPORT, 0);
if (rc < 0) {
err("send op_common");
return -1;
}
strncpy(request.busid, busid, SYSFS_BUS_ID_SIZE-1);
PACK_OP_IMPORT_REQUEST(0, &request);
rc = usbip_net_send(sockfd, (void *) &request, sizeof(request));
if (rc < 0) {
err("send op_import_request");
return -1;
}
/* receive a reply */
rc = usbip_net_recv_op_common(sockfd, &code);
if (rc < 0) {
err("recv op_common");
return -1;
}
rc = usbip_net_recv(sockfd, (void *) &reply, sizeof(reply));
if (rc < 0) {
err("recv op_import_reply");
return -1;
}
PACK_OP_IMPORT_REPLY(0, &reply);
/* check the reply */
if (strncmp(reply.udev.busid, busid, SYSFS_BUS_ID_SIZE)) {
err("recv different busid %s", reply.udev.busid);
return -1;
}
/* import a device */
return import_device(sockfd, &reply.udev);
}
int usbip_net_send_op_common(int sockfd, uint32_t code, uint32_t status)
{
struct op_common op_common;
int rc;
memset(&op_common, 0, sizeof(op_common));
op_common.version = USBIP_VERSION;
op_common.code = code;
op_common.status = status;
PACK_OP_COMMON(1, &op_common);
rc = usbip_net_send(sockfd, &op_common, sizeof(op_common));
if (rc < 0) {
dbg("usbip_net_send failed: %d", rc);
return -1;
}
return 0;
}
static int recv_request_import(int sockfd)
{
struct op_import_request req;
struct op_common reply;
struct usbip_exported_device *edev;
struct usbip_usb_device pdu_udev;
int found = 0;
int error = 0;
int rc;
memset(&req, 0, sizeof(req));
memset(&reply, 0, sizeof(reply));
rc = usbip_net_recv(sockfd, &req, sizeof(req));
if (rc < 0) {
dbg("usbip_net_recv failed: import request");
return -1;
}
PACK_OP_IMPORT_REQUEST(0, &req);
dlist_for_each_data(host_driver->edev_list, edev,
struct usbip_exported_device) {
if (!strncmp(req.busid, edev->udev.busid, SYSFS_BUS_ID_SIZE)) {
info("found requested device: %s", req.busid);
found = 1;
break;
}
}
if (found) {
/* should set TCP_NODELAY for usbip */
usbip_net_set_nodelay(sockfd);
/* export device needs a TCP/IP socket descriptor */
rc = usbip_host_export_device(edev, sockfd);
if (rc < 0)
error = 1;
} else {
info("requested device not found: %s", req.busid);
error = 1;
}
rc = usbip_net_send_op_common(sockfd, OP_REP_IMPORT,
(!error ? ST_OK : ST_NA));
if (rc < 0) {
dbg("usbip_net_send_op_common failed: %#0x", OP_REP_IMPORT);
return -1;
}
if (error) {
dbg("import request busid %s: failed", req.busid);
return -1;
}
memcpy(&pdu_udev, &edev->udev, sizeof(pdu_udev));
usbip_net_pack_usb_device(1, &pdu_udev);
rc = usbip_net_send(sockfd, &pdu_udev, sizeof(pdu_udev));
if (rc < 0) {
dbg("usbip_net_send failed: devinfo");
return -1;
}
dbg("import request busid %s: complete", req.busid);
return 0;
}