freebsd-skq/sys/dev/usb/net/if_urndis.c
Hans Petter Selasky ece4b0bd43 Make a bunch of USB debug SYSCTLs tunable, so that their value(s) can
be set before the USB device(s) are probed.
2015-01-05 15:04:17 +00:00

1017 lines
26 KiB
C

/* $OpenBSD: if_urndis.c,v 1.46 2013/12/09 15:45:29 pirofti Exp $ */
/*
* Copyright (c) 2010 Jonathan Armani <armani@openbsd.org>
* Copyright (c) 2010 Fabien Romano <fabien@openbsd.org>
* Copyright (c) 2010 Michael Knudsen <mk@openbsd.org>
* Copyright (c) 2014 Hans Petter Selasky <hselasky@freebsd.org>
* All rights reserved.
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/stdint.h>
#include <sys/stddef.h>
#include <sys/param.h>
#include <sys/queue.h>
#include <sys/types.h>
#include <sys/systm.h>
#include <sys/socket.h>
#include <sys/kernel.h>
#include <sys/bus.h>
#include <sys/module.h>
#include <sys/lock.h>
#include <sys/mutex.h>
#include <sys/condvar.h>
#include <sys/sysctl.h>
#include <sys/sx.h>
#include <sys/unistd.h>
#include <sys/callout.h>
#include <sys/malloc.h>
#include <sys/priv.h>
#include <net/if.h>
#include <net/if_var.h>
#include <dev/usb/usb.h>
#include <dev/usb/usbdi.h>
#include <dev/usb/usbdi_util.h>
#include "usbdevs.h"
#define USB_DEBUG_VAR urndis_debug
#include <dev/usb/usb_debug.h>
#include <dev/usb/usb_process.h>
#include "usb_if.h"
#include <dev/usb/net/usb_ethernet.h>
#include <dev/usb/net/if_urndisreg.h>
#include <dev/usb/usb_cdc.h>
static device_probe_t urndis_probe;
static device_attach_t urndis_attach;
static device_detach_t urndis_detach;
static device_suspend_t urndis_suspend;
static device_resume_t urndis_resume;
static usb_callback_t urndis_bulk_write_callback;
static usb_callback_t urndis_bulk_read_callback;
static usb_callback_t urndis_intr_read_callback;
static uether_fn_t urndis_attach_post;
static uether_fn_t urndis_init;
static uether_fn_t urndis_stop;
static uether_fn_t urndis_start;
static uether_fn_t urndis_setmulti;
static uether_fn_t urndis_setpromisc;
static uint32_t urndis_ctrl_query(struct urndis_softc *, uint32_t, const void **, uint16_t *);
static uint32_t urndis_ctrl_set(struct urndis_softc *, uint32_t, struct urndis_set_req *, uint16_t);
static uint32_t urndis_ctrl_handle_init(struct urndis_softc *, const struct urndis_comp_hdr *);
static uint32_t urndis_ctrl_handle_query(struct urndis_softc *, const struct urndis_comp_hdr *, const void **, uint16_t *);
static uint32_t urndis_ctrl_handle_reset(struct urndis_softc *, const struct urndis_comp_hdr *);
static uint32_t urndis_ctrl_init(struct urndis_softc *);
#ifdef USB_DEBUG
static int urndis_debug = 0;
static SYSCTL_NODE(_hw_usb, OID_AUTO, urndis, CTLFLAG_RW, 0, "USB RNDIS-Ethernet");
SYSCTL_INT(_hw_usb_urndis, OID_AUTO, debug, CTLFLAG_RWTUN, &urndis_debug, 0,
"Debug level");
#endif
static const struct usb_config urndis_config[URNDIS_N_TRANSFER] = {
[URNDIS_BULK_RX] = {
.type = UE_BULK,
.endpoint = UE_ADDR_ANY,
.direction = UE_DIR_RX,
.if_index = 0,
.frames = 1,
.bufsize = RNDIS_RX_MAXLEN,
.flags = {.short_xfer_ok = 1,},
.callback = urndis_bulk_read_callback,
.timeout = 0, /* no timeout */
.usb_mode = USB_MODE_HOST,
},
[URNDIS_BULK_TX] = {
.type = UE_BULK,
.endpoint = UE_ADDR_ANY,
.direction = UE_DIR_TX,
.if_index = 0,
.frames = RNDIS_TX_FRAMES_MAX,
.bufsize = (RNDIS_TX_FRAMES_MAX * RNDIS_TX_MAXLEN),
.flags = {
.force_short_xfer = 1,
},
.callback = urndis_bulk_write_callback,
.timeout = 10000, /* 10 seconds */
.usb_mode = USB_MODE_HOST,
},
[URNDIS_INTR_RX] = {
.type = UE_INTERRUPT,
.endpoint = UE_ADDR_ANY,
.direction = UE_DIR_RX,
.if_index = 1,
.bufsize = 0, /* use wMaxPacketSize */
.flags = {.short_xfer_ok = 1,.no_pipe_ok = 1,},
.callback = urndis_intr_read_callback,
.timeout = 0,
.usb_mode = USB_MODE_HOST,
},
};
static device_method_t urndis_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, urndis_probe),
DEVMETHOD(device_attach, urndis_attach),
DEVMETHOD(device_detach, urndis_detach),
DEVMETHOD(device_suspend, urndis_suspend),
DEVMETHOD(device_resume, urndis_resume),
DEVMETHOD_END
};
static driver_t urndis_driver = {
.name = "urndis",
.methods = urndis_methods,
.size = sizeof(struct urndis_softc),
};
static devclass_t urndis_devclass;
DRIVER_MODULE(urndis, uhub, urndis_driver, urndis_devclass, NULL, 0);
MODULE_VERSION(urndis, 1);
MODULE_DEPEND(urndis, uether, 1, 1, 1);
MODULE_DEPEND(urndis, usb, 1, 1, 1);
MODULE_DEPEND(urndis, ether, 1, 1, 1);
static const struct usb_ether_methods urndis_ue_methods = {
.ue_attach_post = urndis_attach_post,
.ue_start = urndis_start,
.ue_init = urndis_init,
.ue_stop = urndis_stop,
.ue_setmulti = urndis_setmulti,
.ue_setpromisc = urndis_setpromisc,
};
static const STRUCT_USB_HOST_ID urndis_host_devs[] = {
/* Generic RNDIS class match */
{USB_IFACE_CLASS(UICLASS_WIRELESS), USB_IFACE_SUBCLASS(UISUBCLASS_RF),
USB_IFACE_PROTOCOL(UIPROTO_RNDIS)},
{USB_IFACE_CLASS(UICLASS_IAD), USB_IFACE_SUBCLASS(UISUBCLASS_SYNC),
USB_IFACE_PROTOCOL(UIPROTO_ACTIVESYNC)},
/* HP-WebOS */
{USB_VENDOR(USB_VENDOR_PALM), USB_IFACE_CLASS(UICLASS_CDC),
USB_IFACE_SUBCLASS(UISUBCLASS_ABSTRACT_CONTROL_MODEL),
USB_IFACE_PROTOCOL(0xff)},
};
static int
urndis_probe(device_t dev)
{
struct usb_attach_arg *uaa = device_get_ivars(dev);
return (usbd_lookup_id_by_uaa(urndis_host_devs, sizeof(urndis_host_devs), uaa));
}
static void
urndis_attach_post(struct usb_ether *ue)
{
/* no-op */
return;
}
static int
urndis_attach(device_t dev)
{
struct urndis_softc *sc = device_get_softc(dev);
struct usb_ether *ue = &sc->sc_ue;
struct usb_attach_arg *uaa = device_get_ivars(dev);
struct usb_cdc_cm_descriptor *cmd;
struct {
struct urndis_set_req hdr;
uint32_t filter;
} msg_filter;
const void *buf;
uint16_t bufsz;
uint8_t iface_index[2] = { uaa->info.bIfaceIndex + 1, uaa->info.bIfaceIndex };
int error;
uint8_t i;
sc->sc_ue.ue_udev = uaa->device;
sc->sc_ifaceno_ctl = uaa->info.bIfaceNum;
cmd = usbd_find_descriptor(uaa->device, NULL, uaa->info.bIfaceIndex,
UDESC_CS_INTERFACE, 0xFF, UDESCSUB_CDC_CM, 0xFF);
if (cmd != 0) {
DPRINTF("Call Mode Descriptor found, dataif=%d\n", cmd->bDataInterface);
iface_index[0] = cmd->bDataInterface;
}
device_set_usb_desc(dev);
mtx_init(&sc->sc_mtx, device_get_nameunit(dev), NULL, MTX_DEF);
/* scan the alternate settings looking for a valid one */
for (i = 0; i != 32; i++) {
error = usbd_set_alt_interface_index(uaa->device,
iface_index[0], i);
if (error != 0)
break;
error = usbd_transfer_setup(uaa->device,
iface_index, sc->sc_xfer, urndis_config,
URNDIS_N_TRANSFER, sc, &sc->sc_mtx);
if (error == 0)
break;
}
if ((error != 0) || (i == 32)) {
device_printf(dev, "No valid alternate "
"setting found\n");
goto detach;
}
URNDIS_LOCK(sc);
error = urndis_ctrl_query(sc, OID_802_3_PERMANENT_ADDRESS, &buf, &bufsz);
URNDIS_UNLOCK(sc);
if (error != (int)RNDIS_STATUS_SUCCESS) {
device_printf(dev, "Unable to get hardware address\n");
goto detach;
}
if (bufsz != ETHER_ADDR_LEN) {
device_printf(dev, "Invalid address length: %d bytes\n", bufsz);
goto detach;
}
memcpy(&sc->sc_ue.ue_eaddr, buf, ETHER_ADDR_LEN);
/* Initialize packet filter */
sc->sc_filter = RNDIS_PACKET_TYPE_BROADCAST |
RNDIS_PACKET_TYPE_ALL_MULTICAST;
msg_filter.filter = htole32(sc->sc_filter);
URNDIS_LOCK(sc);
error = urndis_ctrl_set(sc, OID_GEN_CURRENT_PACKET_FILTER,
&msg_filter.hdr, sizeof(msg_filter));
URNDIS_UNLOCK(sc);
if (error != (int)RNDIS_STATUS_SUCCESS) {
device_printf(dev, "Unable to set data filters\n");
goto detach;
}
ue->ue_sc = sc;
ue->ue_dev = dev;
ue->ue_udev = uaa->device;
ue->ue_mtx = &sc->sc_mtx;
ue->ue_methods = &urndis_ue_methods;
error = uether_ifattach(ue);
if (error) {
device_printf(dev, "Could not attach interface\n");
goto detach;
}
URNDIS_LOCK(sc);
/* start interrupt endpoint, if any */
usbd_transfer_start(sc->sc_xfer[URNDIS_INTR_RX]);
URNDIS_UNLOCK(sc);
return (0); /* success */
detach:
urndis_detach(dev);
return (ENXIO); /* failure */
}
static int
urndis_detach(device_t dev)
{
struct urndis_softc *sc = device_get_softc(dev);
struct usb_ether *ue = &sc->sc_ue;
/* stop all USB transfers first */
usbd_transfer_unsetup(sc->sc_xfer, URNDIS_N_TRANSFER);
uether_ifdetach(ue);
mtx_destroy(&sc->sc_mtx);
return (0);
}
static void
urndis_start(struct usb_ether *ue)
{
struct urndis_softc *sc = uether_getsc(ue);
/*
* Start the USB transfers, if not already started:
*/
usbd_transfer_start(sc->sc_xfer[URNDIS_BULK_TX]);
usbd_transfer_start(sc->sc_xfer[URNDIS_BULK_RX]);
}
static void
urndis_init(struct usb_ether *ue)
{
struct urndis_softc *sc = uether_getsc(ue);
struct ifnet *ifp = uether_getifp(ue);
URNDIS_LOCK_ASSERT(sc, MA_OWNED);
ifp->if_drv_flags |= IFF_DRV_RUNNING;
urndis_ctrl_init(sc);
/* stall data write direction, which depends on USB mode */
usbd_xfer_set_stall(sc->sc_xfer[URNDIS_BULK_TX]);
/* start data transfers */
urndis_start(ue);
}
static void
urndis_stop(struct usb_ether *ue)
{
struct urndis_softc *sc = uether_getsc(ue);
struct ifnet *ifp = uether_getifp(ue);
URNDIS_LOCK_ASSERT(sc, MA_OWNED);
ifp->if_drv_flags &= ~IFF_DRV_RUNNING;
/*
* stop all the transfers, if not already stopped:
*/
usbd_transfer_stop(sc->sc_xfer[URNDIS_BULK_RX]);
usbd_transfer_stop(sc->sc_xfer[URNDIS_BULK_TX]);
}
static void
urndis_setmulti(struct usb_ether *ue)
{
/* no-op */
return;
}
static void
urndis_setpromisc(struct usb_ether *ue)
{
/* no-op */
return;
}
static int
urndis_suspend(device_t dev)
{
device_printf(dev, "Suspending\n");
return (0);
}
static int
urndis_resume(device_t dev)
{
device_printf(dev, "Resuming\n");
return (0);
}
static usb_error_t
urndis_ctrl_msg(struct urndis_softc *sc, uint8_t rt, uint8_t r,
uint16_t index, uint16_t value, void *buf, uint16_t buflen)
{
usb_device_request_t req;
req.bmRequestType = rt;
req.bRequest = r;
USETW(req.wValue, value);
USETW(req.wIndex, index);
USETW(req.wLength, buflen);
return (usbd_do_request_flags(sc->sc_ue.ue_udev,
&sc->sc_mtx, &req, buf, (rt & UT_READ) ?
USB_SHORT_XFER_OK : 0, NULL, 2000 /* ms */ ));
}
static usb_error_t
urndis_ctrl_send(struct urndis_softc *sc, void *buf, uint16_t len)
{
usb_error_t err;
err = urndis_ctrl_msg(sc, UT_WRITE_CLASS_INTERFACE, UR_GET_STATUS,
sc->sc_ifaceno_ctl, 0, buf, len);
DPRINTF("%s\n", usbd_errstr(err));
return (err);
}
static struct urndis_comp_hdr *
urndis_ctrl_recv(struct urndis_softc *sc)
{
struct urndis_comp_hdr *hdr;
usb_error_t err;
err = urndis_ctrl_msg(sc, UT_READ_CLASS_INTERFACE, UR_CLEAR_FEATURE,
sc->sc_ifaceno_ctl, 0, sc->sc_response_buf, RNDIS_RESPONSE_LEN);
if (err != USB_ERR_NORMAL_COMPLETION)
return (NULL);
hdr = (struct urndis_comp_hdr *)sc->sc_response_buf;
DPRINTF("type 0x%x len %u\n", le32toh(hdr->rm_type),
le32toh(hdr->rm_len));
if (le32toh(hdr->rm_len) > RNDIS_RESPONSE_LEN) {
DPRINTF("ctrl message error: wrong size %u > %u\n",
le32toh(hdr->rm_len), RNDIS_RESPONSE_LEN);
return (NULL);
}
return (hdr);
}
static uint32_t
urndis_ctrl_handle(struct urndis_softc *sc, struct urndis_comp_hdr *hdr,
const void **buf, uint16_t *bufsz)
{
uint32_t rval;
DPRINTF("\n");
if (buf != NULL && bufsz != NULL) {
*buf = NULL;
*bufsz = 0;
}
switch (le32toh(hdr->rm_type)) {
case REMOTE_NDIS_INITIALIZE_CMPLT:
rval = urndis_ctrl_handle_init(sc, hdr);
break;
case REMOTE_NDIS_QUERY_CMPLT:
rval = urndis_ctrl_handle_query(sc, hdr, buf, bufsz);
break;
case REMOTE_NDIS_RESET_CMPLT:
rval = urndis_ctrl_handle_reset(sc, hdr);
break;
case REMOTE_NDIS_KEEPALIVE_CMPLT:
case REMOTE_NDIS_SET_CMPLT:
rval = le32toh(hdr->rm_status);
break;
default:
DPRINTF("ctrl message error: unknown event 0x%x\n",
le32toh(hdr->rm_type));
rval = RNDIS_STATUS_FAILURE;
break;
}
return (rval);
}
static uint32_t
urndis_ctrl_handle_init(struct urndis_softc *sc,
const struct urndis_comp_hdr *hdr)
{
const struct urndis_init_comp *msg;
msg = (const struct urndis_init_comp *)hdr;
DPRINTF("len %u rid %u status 0x%x "
"ver_major %u ver_minor %u devflags 0x%x medium 0x%x pktmaxcnt %u "
"pktmaxsz %u align %u aflistoffset %u aflistsz %u\n",
le32toh(msg->rm_len),
le32toh(msg->rm_rid),
le32toh(msg->rm_status),
le32toh(msg->rm_ver_major),
le32toh(msg->rm_ver_minor),
le32toh(msg->rm_devflags),
le32toh(msg->rm_medium),
le32toh(msg->rm_pktmaxcnt),
le32toh(msg->rm_pktmaxsz),
le32toh(msg->rm_align),
le32toh(msg->rm_aflistoffset),
le32toh(msg->rm_aflistsz));
if (le32toh(msg->rm_status) != RNDIS_STATUS_SUCCESS) {
DPRINTF("init failed 0x%x\n", le32toh(msg->rm_status));
return (le32toh(msg->rm_status));
}
if (le32toh(msg->rm_devflags) != RNDIS_DF_CONNECTIONLESS) {
DPRINTF("wrong device type (current type: 0x%x)\n",
le32toh(msg->rm_devflags));
return (RNDIS_STATUS_FAILURE);
}
if (le32toh(msg->rm_medium) != RNDIS_MEDIUM_802_3) {
DPRINTF("medium not 802.3 (current medium: 0x%x)\n",
le32toh(msg->rm_medium));
return (RNDIS_STATUS_FAILURE);
}
sc->sc_lim_pktsz = le32toh(msg->rm_pktmaxsz);
return (le32toh(msg->rm_status));
}
static uint32_t
urndis_ctrl_handle_query(struct urndis_softc *sc,
const struct urndis_comp_hdr *hdr, const void **buf, uint16_t *bufsz)
{
const struct urndis_query_comp *msg;
uint64_t limit;
msg = (const struct urndis_query_comp *)hdr;
DPRINTF("len %u rid %u status 0x%x "
"buflen %u bufoff %u\n",
le32toh(msg->rm_len),
le32toh(msg->rm_rid),
le32toh(msg->rm_status),
le32toh(msg->rm_infobuflen),
le32toh(msg->rm_infobufoffset));
if (buf != NULL && bufsz != NULL) {
*buf = NULL;
*bufsz = 0;
}
if (le32toh(msg->rm_status) != RNDIS_STATUS_SUCCESS) {
DPRINTF("query failed 0x%x\n", le32toh(msg->rm_status));
return (le32toh(msg->rm_status));
}
limit = le32toh(msg->rm_infobuflen);
limit += le32toh(msg->rm_infobufoffset);
limit += RNDIS_HEADER_OFFSET;
if (limit > (uint64_t)le32toh(msg->rm_len)) {
DPRINTF("ctrl message error: invalid query info "
"len/offset/end_position(%u/%u/%u) -> "
"go out of buffer limit %u\n",
le32toh(msg->rm_infobuflen),
le32toh(msg->rm_infobufoffset),
le32toh(msg->rm_infobuflen) +
le32toh(msg->rm_infobufoffset) + RNDIS_HEADER_OFFSET,
le32toh(msg->rm_len));
return (RNDIS_STATUS_FAILURE);
}
if (buf != NULL && bufsz != NULL) {
*buf = ((const uint8_t *)msg) + RNDIS_HEADER_OFFSET + le32toh(msg->rm_infobufoffset);
*bufsz = le32toh(msg->rm_infobuflen);
}
return (le32toh(msg->rm_status));
}
static uint32_t
urndis_ctrl_handle_reset(struct urndis_softc *sc,
const struct urndis_comp_hdr *hdr)
{
const struct urndis_reset_comp *msg;
uint32_t rval;
msg = (const struct urndis_reset_comp *)hdr;
rval = le32toh(msg->rm_status);
DPRINTF("len %u status 0x%x "
"adrreset %u\n",
le32toh(msg->rm_len),
rval,
le32toh(msg->rm_adrreset));
if (rval != RNDIS_STATUS_SUCCESS) {
DPRINTF("reset failed 0x%x\n", rval);
return (rval);
}
if (msg->rm_adrreset != 0) {
struct {
struct urndis_set_req hdr;
uint32_t filter;
} msg_filter;
msg_filter.filter = htole32(sc->sc_filter);
rval = urndis_ctrl_set(sc, OID_GEN_CURRENT_PACKET_FILTER,
&msg_filter.hdr, sizeof(msg_filter));
if (rval != RNDIS_STATUS_SUCCESS) {
DPRINTF("unable to reset data filters\n");
return (rval);
}
}
return (rval);
}
static uint32_t
urndis_ctrl_init(struct urndis_softc *sc)
{
struct urndis_init_req msg;
struct urndis_comp_hdr *hdr;
uint32_t rval;
msg.rm_type = htole32(REMOTE_NDIS_INITIALIZE_MSG);
msg.rm_len = htole32(sizeof(msg));
msg.rm_rid = htole32(0);
msg.rm_ver_major = htole32(1);
msg.rm_ver_minor = htole32(1);
msg.rm_max_xfersz = htole32(RNDIS_RX_MAXLEN);
DPRINTF("type %u len %u rid %u ver_major %u "
"ver_minor %u max_xfersz %u\n",
le32toh(msg.rm_type),
le32toh(msg.rm_len),
le32toh(msg.rm_rid),
le32toh(msg.rm_ver_major),
le32toh(msg.rm_ver_minor),
le32toh(msg.rm_max_xfersz));
rval = urndis_ctrl_send(sc, &msg, sizeof(msg));
if (rval != RNDIS_STATUS_SUCCESS) {
DPRINTF("init failed\n");
return (rval);
}
if ((hdr = urndis_ctrl_recv(sc)) == NULL) {
DPRINTF("unable to get init response\n");
return (RNDIS_STATUS_FAILURE);
}
rval = urndis_ctrl_handle(sc, hdr, NULL, NULL);
return (rval);
}
#if 0
static uint32_t
urndis_ctrl_halt(struct urndis_softc *sc)
{
struct urndis_halt_req msg;
uint32_t rval;
msg.rm_type = htole32(REMOTE_NDIS_HALT_MSG);
msg.rm_len = htole32(sizeof(msg));
msg.rm_rid = 0;
DPRINTF("type %u len %u rid %u\n",
le32toh(msg.rm_type),
le32toh(msg.rm_len),
le32toh(msg.rm_rid));
rval = urndis_ctrl_send(sc, &msg, sizeof(msg));
if (rval != RNDIS_STATUS_SUCCESS)
printf("halt failed\n");
return (rval);
}
#endif
static uint32_t
urndis_ctrl_query(struct urndis_softc *sc, uint32_t oid, const void **rbuf, uint16_t *rbufsz)
{
struct urndis_query_req msg;
uint32_t rval;
struct urndis_comp_hdr *hdr;
msg.rm_type = htole32(REMOTE_NDIS_QUERY_MSG);
msg.rm_len = htole32(sizeof(msg));
msg.rm_rid = 0; /* XXX */
msg.rm_oid = htole32(oid);
msg.rm_infobuflen = htole32(0);
msg.rm_infobufoffset = 0;
msg.rm_devicevchdl = 0;
DPRINTF("type %u len %u rid %u oid 0x%x "
"infobuflen %u infobufoffset %u devicevchdl %u\n",
le32toh(msg.rm_type),
le32toh(msg.rm_len),
le32toh(msg.rm_rid),
le32toh(msg.rm_oid),
le32toh(msg.rm_infobuflen),
le32toh(msg.rm_infobufoffset),
le32toh(msg.rm_devicevchdl));
rval = urndis_ctrl_send(sc, &msg, sizeof(msg));
if (rval != RNDIS_STATUS_SUCCESS) {
DPRINTF("query failed\n");
return (rval);
}
if ((hdr = urndis_ctrl_recv(sc)) == NULL) {
DPRINTF("unable to get query response\n");
return (RNDIS_STATUS_FAILURE);
}
rval = urndis_ctrl_handle(sc, hdr, rbuf, rbufsz);
return (rval);
}
static uint32_t
urndis_ctrl_set(struct urndis_softc *sc, uint32_t oid, struct urndis_set_req *msg, uint16_t len)
{
struct urndis_comp_hdr *hdr;
uint32_t rval;
uint32_t datalen = len - sizeof(*msg);
msg->rm_type = htole32(REMOTE_NDIS_SET_MSG);
msg->rm_len = htole32(len);
msg->rm_rid = 0; /* XXX */
msg->rm_oid = htole32(oid);
msg->rm_infobuflen = htole32(datalen);
if (datalen != 0) {
msg->rm_infobufoffset = htole32(sizeof(*msg) - RNDIS_HEADER_OFFSET);
} else {
msg->rm_infobufoffset = 0;
}
msg->rm_devicevchdl = 0;
DPRINTF("type %u len %u rid %u oid 0x%x "
"infobuflen %u infobufoffset %u devicevchdl %u\n",
le32toh(msg->rm_type),
le32toh(msg->rm_len),
le32toh(msg->rm_rid),
le32toh(msg->rm_oid),
le32toh(msg->rm_infobuflen),
le32toh(msg->rm_infobufoffset),
le32toh(msg->rm_devicevchdl));
rval = urndis_ctrl_send(sc, msg, len);
if (rval != RNDIS_STATUS_SUCCESS) {
DPRINTF("set failed\n");
return (rval);
}
if ((hdr = urndis_ctrl_recv(sc)) == NULL) {
DPRINTF("unable to get set response\n");
return (RNDIS_STATUS_FAILURE);
}
rval = urndis_ctrl_handle(sc, hdr, NULL, NULL);
if (rval != RNDIS_STATUS_SUCCESS)
DPRINTF("set failed 0x%x\n", rval);
return (rval);
}
static void
urndis_bulk_read_callback(struct usb_xfer *xfer, usb_error_t error)
{
struct urndis_softc *sc = usbd_xfer_softc(xfer);
struct usb_page_cache *pc = usbd_xfer_get_frame(xfer, 0);
struct ifnet *ifp = uether_getifp(&sc->sc_ue);
struct urndis_packet_msg msg;
struct mbuf *m;
int actlen;
int aframes;
int offset;
switch (USB_GET_STATE(xfer)) {
case USB_ST_TRANSFERRED:
usbd_xfer_status(xfer, &actlen, NULL, &aframes, NULL);
DPRINTFN(1, "received %u bytes in %u frames\n", actlen, aframes);
for (offset = 0; actlen >= (uint32_t)sizeof(msg);) {
/* copy out header */
usbd_copy_out(pc, offset, &msg, sizeof(msg));
if (le32toh(0x1234567U) != 0x1234567U) {
/* swap endianness */
msg.rm_type = le32toh(msg.rm_type);
msg.rm_len = le32toh(msg.rm_len);
msg.rm_dataoffset = le32toh(msg.rm_dataoffset);
msg.rm_datalen = le32toh(msg.rm_datalen);
msg.rm_oobdataoffset = le32toh(msg.rm_oobdataoffset);
msg.rm_oobdatalen = le32toh(msg.rm_oobdatalen);
msg.rm_oobdataelements = le32toh(msg.rm_oobdataelements);
msg.rm_pktinfooffset = le32toh(msg.rm_pktinfooffset);
msg.rm_pktinfolen = le32toh(msg.rm_pktinfolen);
msg.rm_vchandle = le32toh(msg.rm_vchandle);
msg.rm_reserved = le32toh(msg.rm_reserved);
}
DPRINTF("len %u data(off:%u len:%u) "
"oobdata(off:%u len:%u nb:%u) perpacket(off:%u len:%u)\n",
msg.rm_len, msg.rm_dataoffset, msg.rm_datalen,
msg.rm_oobdataoffset, msg.rm_oobdatalen,
msg.rm_oobdataelements, msg.rm_pktinfooffset,
msg.rm_pktinfooffset);
/* sanity check the RNDIS header */
if (msg.rm_type != REMOTE_NDIS_PACKET_MSG) {
DPRINTF("invalid type 0x%x != 0x%x\n",
msg.rm_type, REMOTE_NDIS_PACKET_MSG);
goto tr_setup;
} else if (msg.rm_len < (uint32_t)sizeof(msg)) {
DPRINTF("invalid msg len %u < %u\n",
msg.rm_len, (unsigned)sizeof(msg));
goto tr_setup;
} else if (msg.rm_len > (uint32_t)actlen) {
DPRINTF("invalid msg len %u > buffer "
"len %u\n", msg.rm_len, actlen);
goto tr_setup;
} else if (msg.rm_dataoffset >= (uint32_t)actlen) {
DPRINTF("invalid msg dataoffset %u > buffer "
"dataoffset %u\n", msg.rm_dataoffset, actlen);
goto tr_setup;
} else if (msg.rm_datalen > (uint32_t)actlen) {
DPRINTF("invalid msg datalen %u > buffer "
"datalen %u\n", msg.rm_datalen, actlen);
goto tr_setup;
} else if ((msg.rm_dataoffset + msg.rm_datalen +
(uint32_t)__offsetof(struct urndis_packet_msg,
rm_dataoffset)) > (uint32_t)actlen) {
DPRINTF("invalid dataoffset %u larger than %u\n",
msg.rm_dataoffset + msg.rm_datalen +
(uint32_t)__offsetof(struct urndis_packet_msg,
rm_dataoffset), actlen);
goto tr_setup;
} else if (msg.rm_datalen < (uint32_t)sizeof(struct ether_header)) {
if_inc_counter(ifp, IFCOUNTER_IERRORS, 1);
DPRINTF("invalid ethernet size "
"%u < %u\n", msg.rm_datalen, (unsigned)sizeof(struct ether_header));
goto tr_setup;
} else if (msg.rm_datalen > (uint32_t)MCLBYTES) {
if_inc_counter(ifp, IFCOUNTER_IERRORS, 1);
DPRINTF("invalid ethernet size "
"%u > %u\n",
msg.rm_datalen, (unsigned)MCLBYTES);
goto tr_setup;
} else if (msg.rm_datalen > (uint32_t)(MHLEN - ETHER_ALIGN)) {
m = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR);
} else {
m = m_gethdr(M_NOWAIT, MT_DATA);
}
/* check if we have a buffer */
if (m != NULL) {
m_adj(m, ETHER_ALIGN);
usbd_copy_out(pc, offset + msg.rm_dataoffset +
__offsetof(struct urndis_packet_msg,
rm_dataoffset), m->m_data, msg.rm_datalen);
/* enqueue */
uether_rxmbuf(&sc->sc_ue, m, msg.rm_datalen);
} else {
if_inc_counter(ifp, IFCOUNTER_IERRORS, 1);
}
offset += msg.rm_len;
actlen -= msg.rm_len;
}
case USB_ST_SETUP:
tr_setup:
usbd_xfer_set_frame_len(xfer, 0, RNDIS_RX_MAXLEN);
usbd_xfer_set_frames(xfer, 1);
usbd_transfer_submit(xfer);
uether_rxflush(&sc->sc_ue); /* must be last */
break;
default: /* Error */
DPRINTFN(1, "error = %s\n", usbd_errstr(error));
if (error != USB_ERR_CANCELLED) {
/* try to clear stall first */
usbd_xfer_set_stall(xfer);
usbd_xfer_set_frames(xfer, 0);
usbd_transfer_submit(xfer);
}
break;
}
}
static void
urndis_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error)
{
struct urndis_packet_msg msg;
struct urndis_softc *sc = usbd_xfer_softc(xfer);
struct ifnet *ifp = uether_getifp(&sc->sc_ue);
struct mbuf *m;
unsigned x;
int actlen;
int aframes;
usbd_xfer_status(xfer, &actlen, NULL, &aframes, NULL);
DPRINTFN(1, "\n");
switch (USB_GET_STATE(xfer)) {
case USB_ST_TRANSFERRED:
DPRINTFN(11, "%u bytes in %u frames\n", actlen, aframes);
if_inc_counter(ifp, IFCOUNTER_OPACKETS, 1);
/* FALLTHROUGH */
case USB_ST_SETUP:
tr_setup:
memset(&msg, 0, sizeof(msg));
for (x = 0; x != RNDIS_TX_FRAMES_MAX; x++) {
struct usb_page_cache *pc = usbd_xfer_get_frame(xfer, x);
usbd_xfer_set_frame_offset(xfer, x * RNDIS_TX_MAXLEN, x);
next_pkt:
IFQ_DRV_DEQUEUE(&ifp->if_snd, m);
if (m == NULL)
break;
if ((m->m_pkthdr.len + sizeof(msg)) > RNDIS_TX_MAXLEN) {
DPRINTF("Too big packet\n");
if_inc_counter(ifp, IFCOUNTER_OERRORS, 1);
/* Free buffer */
m_freem(m);
goto next_pkt;
}
msg.rm_type = htole32(REMOTE_NDIS_PACKET_MSG);
msg.rm_len = htole32(sizeof(msg) + m->m_pkthdr.len);
msg.rm_dataoffset = htole32(RNDIS_DATA_OFFSET);
msg.rm_datalen = htole32(m->m_pkthdr.len);
/* copy in all data */
usbd_copy_in(pc, 0, &msg, sizeof(msg));
usbd_m_copy_in(pc, sizeof(msg), m, 0, m->m_pkthdr.len);
usbd_xfer_set_frame_len(xfer, x, sizeof(msg) + m->m_pkthdr.len);
/*
* If there's a BPF listener, bounce a copy of
* this frame to him:
*/
BPF_MTAP(ifp, m);
/* Free buffer */
m_freem(m);
}
if (x != 0) {
usbd_xfer_set_frames(xfer, x);
usbd_transfer_submit(xfer);
}
break;
default: /* Error */
DPRINTFN(11, "transfer error, %s\n", usbd_errstr(error));
/* count output errors */
if_inc_counter(ifp, IFCOUNTER_OERRORS, 1);
if (error != USB_ERR_CANCELLED) {
/* try to clear stall first */
usbd_xfer_set_stall(xfer);
goto tr_setup;
}
break;
}
}
static void
urndis_intr_read_callback(struct usb_xfer *xfer, usb_error_t error)
{
int actlen;
usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL);
switch (USB_GET_STATE(xfer)) {
case USB_ST_TRANSFERRED:
DPRINTF("Received %d bytes\n", actlen);
/* TODO: decode some indications */
/* FALLTHROUGH */
case USB_ST_SETUP:
tr_setup:
usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer));
usbd_transfer_submit(xfer);
break;
default: /* Error */
if (error != USB_ERR_CANCELLED) {
/* start clear stall */
usbd_xfer_set_stall(xfer);
goto tr_setup;
}
break;
}
}