28 static int is_clear_halt_cmd(struct urb *urb)  in is_clear_halt_cmd()  argument
32 	req = (struct usb_ctrlrequest *) urb->setup_packet;  in is_clear_halt_cmd()
39 static int is_set_interface_cmd(struct urb *urb)  in is_set_interface_cmd()  argument
43 	req = (struct usb_ctrlrequest *) urb->setup_packet;  in is_set_interface_cmd()
49 static int is_set_configuration_cmd(struct urb *urb)  in is_set_configuration_cmd()  argument
53 	req = (struct usb_ctrlrequest *) urb->setup_packet;  in is_set_configuration_cmd()
59 static int is_reset_device_cmd(struct urb *urb)  in is_reset_device_cmd()  argument
65 	req = (struct usb_ctrlrequest *) urb->setup_packet;  in is_reset_device_cmd()
78 static int tweak_clear_halt_cmd(struct urb *urb)  in tweak_clear_halt_cmd()  argument
86 	req = (struct usb_ctrlrequest *) urb->setup_packet;  in tweak_clear_halt_cmd()
99 		target_pipe = usb_rcvctrlpipe(urb->dev, target_endp);  in tweak_clear_halt_cmd()
101 		target_pipe = usb_sndctrlpipe(urb->dev, target_endp);  in tweak_clear_halt_cmd()
103 	ret = usb_clear_halt(urb->dev, target_pipe);  in tweak_clear_halt_cmd()
105 		dev_err(&urb->dev->dev,  in tweak_clear_halt_cmd()
107 			urb->dev->devnum, target_endp, ret);  in tweak_clear_halt_cmd()
109 		dev_info(&urb->dev->dev,  in tweak_clear_halt_cmd()
111 			 urb->dev->devnum, target_endp);  in tweak_clear_halt_cmd()
116 static int tweak_set_interface_cmd(struct urb *urb)  in tweak_set_interface_cmd()  argument
123 	req = (struct usb_ctrlrequest *) urb->setup_packet;  in tweak_set_interface_cmd()
130 	ret = usb_set_interface(urb->dev, interface, alternate);  in tweak_set_interface_cmd()
132 		dev_err(&urb->dev->dev,  in tweak_set_interface_cmd()
136 		dev_info(&urb->dev->dev,  in tweak_set_interface_cmd()
143 static int tweak_set_configuration_cmd(struct urb *urb)  in tweak_set_configuration_cmd()  argument
145 	struct stub_priv *priv = (struct stub_priv *) urb->context;  in tweak_set_configuration_cmd()
151 	req = (struct usb_ctrlrequest *) urb->setup_packet;  in tweak_set_configuration_cmd()
161 static int tweak_reset_device_cmd(struct urb *urb)  in tweak_reset_device_cmd()  argument
163 	struct stub_priv *priv = (struct stub_priv *) urb->context;  in tweak_reset_device_cmd()
166 	dev_info(&urb->dev->dev, "usb_queue_reset_device\n");  in tweak_reset_device_cmd()
174 		dev_err(&urb->dev->dev, "could not obtain lock to reset device\n");  in tweak_reset_device_cmd()
186 static void tweak_special_requests(struct urb *urb)  in tweak_special_requests()  argument
188 	if (!urb || !urb->setup_packet)  in tweak_special_requests()
191 	if (usb_pipetype(urb->pipe) != PIPE_CONTROL)  in tweak_special_requests()
194 	if (is_clear_halt_cmd(urb))  in tweak_special_requests()
196 		 tweak_clear_halt_cmd(urb);  in tweak_special_requests()
198 	else if (is_set_interface_cmd(urb))  in tweak_special_requests()
200 		tweak_set_interface_cmd(urb);  in tweak_special_requests()
202 	else if (is_set_configuration_cmd(urb))  in tweak_special_requests()
204 		tweak_set_configuration_cmd(urb);  in tweak_special_requests()
206 	else if (is_reset_device_cmd(urb))  in tweak_special_requests()
207 		tweak_reset_device_cmd(urb);  in tweak_special_requests()
233 		dev_info(&priv->urb->dev->dev, "unlink urb %p\n",  in stub_recv_cmd_unlink()
234 			 priv->urb);  in stub_recv_cmd_unlink()
271 		ret = usb_unlink_urb(priv->urb);  in stub_recv_cmd_unlink()
273 			dev_err(&priv->urb->dev->dev,  in stub_recv_cmd_unlink()
275 				priv->urb, ret);  in stub_recv_cmd_unlink()
394 static void masking_bogus_flags(struct urb *urb)  in masking_bogus_flags()  argument
402 	if (!urb || urb->hcpriv || !urb->complete)  in masking_bogus_flags()
404 	dev = urb->dev;  in masking_bogus_flags()
408 	ep = (usb_pipein(urb->pipe) ? dev->ep_in : dev->ep_out)  in masking_bogus_flags()
409 		[usb_pipeendpoint(urb->pipe)];  in masking_bogus_flags()
416 			(struct usb_ctrlrequest *) urb->setup_packet;  in masking_bogus_flags()
445 	urb->transfer_flags &= allowed;  in masking_bogus_flags()
463 		priv->urb = usb_alloc_urb(pdu->u.cmd_submit.number_of_packets,  in stub_recv_cmd_submit()
466 		priv->urb = usb_alloc_urb(0, GFP_KERNEL);  in stub_recv_cmd_submit()
468 	if (!priv->urb) {  in stub_recv_cmd_submit()
476 		priv->urb->transfer_buffer =  in stub_recv_cmd_submit()
479 		if (!priv->urb->transfer_buffer) {  in stub_recv_cmd_submit()
486 	priv->urb->setup_packet = kmemdup(&pdu->u.cmd_submit.setup, 8,  in stub_recv_cmd_submit()
488 	if (!priv->urb->setup_packet) {  in stub_recv_cmd_submit()
495 	priv->urb->context                = (void *) priv;  in stub_recv_cmd_submit()
496 	priv->urb->dev                    = udev;  in stub_recv_cmd_submit()
497 	priv->urb->pipe                   = pipe;  in stub_recv_cmd_submit()
498 	priv->urb->complete               = stub_complete;  in stub_recv_cmd_submit()
500 	usbip_pack_pdu(pdu, priv->urb, USBIP_CMD_SUBMIT, 0);  in stub_recv_cmd_submit()
503 	if (usbip_recv_xbuff(ud, priv->urb) < 0)  in stub_recv_cmd_submit()
506 	if (usbip_recv_iso(ud, priv->urb) < 0)  in stub_recv_cmd_submit()
510 	tweak_special_requests(priv->urb);  in stub_recv_cmd_submit()
512 	masking_bogus_flags(priv->urb);  in stub_recv_cmd_submit()
514 	ret = usb_submit_urb(priv->urb, GFP_KERNEL);  in stub_recv_cmd_submit()
522 		usbip_dump_urb(priv->urb);  in stub_recv_cmd_submit()