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path: root/drivers/usb/usbip
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Diffstat (limited to 'drivers/usb/usbip')
-rw-r--r--drivers/usb/usbip/stub_dev.c3
-rw-r--r--drivers/usb/usbip/stub_main.c5
-rw-r--r--drivers/usb/usbip/stub_rx.c58
-rw-r--r--drivers/usb/usbip/stub_tx.c13
-rw-r--r--drivers/usb/usbip/usbip_common.c14
-rw-r--r--drivers/usb/usbip/vhci_hcd.c12
-rw-r--r--drivers/usb/usbip/vhci_rx.c23
-rw-r--r--drivers/usb/usbip/vhci_tx.c3
8 files changed, 75 insertions, 56 deletions
diff --git a/drivers/usb/usbip/stub_dev.c b/drivers/usb/usbip/stub_dev.c
index c653ce533430..1886d8e4f14e 100644
--- a/drivers/usb/usbip/stub_dev.c
+++ b/drivers/usb/usbip/stub_dev.c
@@ -163,8 +163,7 @@ static void stub_shutdown_connection(struct usbip_device *ud)
* step 1?
*/
if (ud->tcp_socket) {
- dev_dbg(&sdev->udev->dev, "shutdown tcp_socket %p\n",
- ud->tcp_socket);
+ dev_dbg(&sdev->udev->dev, "shutdown sockfd\n");
kernel_sock_shutdown(ud->tcp_socket, SHUT_RDWR);
}
diff --git a/drivers/usb/usbip/stub_main.c b/drivers/usb/usbip/stub_main.c
index af10f7b131a4..325b4c05acdd 100644
--- a/drivers/usb/usbip/stub_main.c
+++ b/drivers/usb/usbip/stub_main.c
@@ -252,11 +252,12 @@ void stub_device_cleanup_urbs(struct stub_device *sdev)
struct stub_priv *priv;
struct urb *urb;
- dev_dbg(&sdev->udev->dev, "free sdev %p\n", sdev);
+ dev_dbg(&sdev->udev->dev, "Stub device cleaning up urbs\n");
while ((priv = stub_priv_pop(sdev))) {
urb = priv->urb;
- dev_dbg(&sdev->udev->dev, "free urb %p\n", urb);
+ dev_dbg(&sdev->udev->dev, "free urb seqnum %lu\n",
+ priv->seqnum);
usb_kill_urb(urb);
kmem_cache_free(stub_priv_cache, priv);
diff --git a/drivers/usb/usbip/stub_rx.c b/drivers/usb/usbip/stub_rx.c
index 191b176ffedf..5b807185f79e 100644
--- a/drivers/usb/usbip/stub_rx.c
+++ b/drivers/usb/usbip/stub_rx.c
@@ -225,9 +225,6 @@ static int stub_recv_cmd_unlink(struct stub_device *sdev,
if (priv->seqnum != pdu->u.cmd_unlink.seqnum)
continue;
- dev_info(&priv->urb->dev->dev, "unlink urb %p\n",
- priv->urb);
-
/*
* This matched urb is not completed yet (i.e., be in
* flight in usb hcd hardware/driver). Now we are
@@ -266,8 +263,8 @@ static int stub_recv_cmd_unlink(struct stub_device *sdev,
ret = usb_unlink_urb(priv->urb);
if (ret != -EINPROGRESS)
dev_err(&priv->urb->dev->dev,
- "failed to unlink a urb %p, ret %d\n",
- priv->urb, ret);
+ "failed to unlink a urb # %lu, ret %d\n",
+ priv->seqnum, ret);
return 0;
}
@@ -336,23 +333,34 @@ static struct stub_priv *stub_priv_alloc(struct stub_device *sdev,
return priv;
}
-static int get_pipe(struct stub_device *sdev, int epnum, int dir)
+static int get_pipe(struct stub_device *sdev, struct usbip_header *pdu)
{
struct usb_device *udev = sdev->udev;
struct usb_host_endpoint *ep;
struct usb_endpoint_descriptor *epd = NULL;
+ int epnum = pdu->base.ep;
+ int dir = pdu->base.direction;
+
+ if (epnum < 0 || epnum > 15)
+ goto err_ret;
if (dir == USBIP_DIR_IN)
ep = udev->ep_in[epnum & 0x7f];
else
ep = udev->ep_out[epnum & 0x7f];
- if (!ep) {
- dev_err(&sdev->udev->dev, "no such endpoint?, %d\n",
- epnum);
- BUG();
- }
+ if (!ep)
+ goto err_ret;
epd = &ep->desc;
+
+ /* validate transfer_buffer_length */
+ if (pdu->u.cmd_submit.transfer_buffer_length > INT_MAX) {
+ dev_err(&sdev->udev->dev,
+ "CMD_SUBMIT: -EMSGSIZE transfer_buffer_length %d\n",
+ pdu->u.cmd_submit.transfer_buffer_length);
+ return -1;
+ }
+
if (usb_endpoint_xfer_control(epd)) {
if (dir == USBIP_DIR_OUT)
return usb_sndctrlpipe(udev, epnum);
@@ -375,15 +383,31 @@ static int get_pipe(struct stub_device *sdev, int epnum, int dir)
}
if (usb_endpoint_xfer_isoc(epd)) {
+ /* validate packet size and number of packets */
+ unsigned int maxp, packets, bytes;
+
+ maxp = usb_endpoint_maxp(epd);
+ maxp *= usb_endpoint_maxp_mult(epd);
+ bytes = pdu->u.cmd_submit.transfer_buffer_length;
+ packets = DIV_ROUND_UP(bytes, maxp);
+
+ if (pdu->u.cmd_submit.number_of_packets < 0 ||
+ pdu->u.cmd_submit.number_of_packets > packets) {
+ dev_err(&sdev->udev->dev,
+ "CMD_SUBMIT: isoc invalid num packets %d\n",
+ pdu->u.cmd_submit.number_of_packets);
+ return -1;
+ }
if (dir == USBIP_DIR_OUT)
return usb_sndisocpipe(udev, epnum);
else
return usb_rcvisocpipe(udev, epnum);
}
+err_ret:
/* NOT REACHED */
- dev_err(&sdev->udev->dev, "get pipe, epnum %d\n", epnum);
- return 0;
+ dev_err(&sdev->udev->dev, "CMD_SUBMIT: invalid epnum %d\n", epnum);
+ return -1;
}
static void masking_bogus_flags(struct urb *urb)
@@ -447,7 +471,10 @@ static void stub_recv_cmd_submit(struct stub_device *sdev,
struct stub_priv *priv;
struct usbip_device *ud = &sdev->ud;
struct usb_device *udev = sdev->udev;
- int pipe = get_pipe(sdev, pdu->base.ep, pdu->base.direction);
+ int pipe = get_pipe(sdev, pdu);
+
+ if (pipe == -1)
+ return;
priv = stub_priv_alloc(sdev, pdu);
if (!priv)
@@ -466,7 +493,8 @@ static void stub_recv_cmd_submit(struct stub_device *sdev,
}
/* allocate urb transfer buffer, if needed */
- if (pdu->u.cmd_submit.transfer_buffer_length > 0) {
+ if (pdu->u.cmd_submit.transfer_buffer_length > 0 &&
+ pdu->u.cmd_submit.transfer_buffer_length <= INT_MAX) {
priv->urb->transfer_buffer =
kzalloc(pdu->u.cmd_submit.transfer_buffer_length,
GFP_KERNEL);
diff --git a/drivers/usb/usbip/stub_tx.c b/drivers/usb/usbip/stub_tx.c
index be50cef645d8..96aa375b80d9 100644
--- a/drivers/usb/usbip/stub_tx.c
+++ b/drivers/usb/usbip/stub_tx.c
@@ -102,7 +102,7 @@ void stub_complete(struct urb *urb)
/* link a urb to the queue of tx. */
spin_lock_irqsave(&sdev->priv_lock, flags);
if (sdev->ud.tcp_socket == NULL) {
- usbip_dbg_stub_tx("ignore urb for closed connection %p", urb);
+ usbip_dbg_stub_tx("ignore urb for closed connection\n");
/* It will be freed in stub_device_cleanup_urbs(). */
} else if (priv->unlinking) {
stub_enqueue_ret_unlink(sdev, priv->seqnum, urb->status);
@@ -181,6 +181,13 @@ static int stub_send_ret_submit(struct stub_device *sdev)
memset(&pdu_header, 0, sizeof(pdu_header));
memset(&msg, 0, sizeof(msg));
+ if (urb->actual_length > 0 && !urb->transfer_buffer) {
+ dev_err(&sdev->udev->dev,
+ "urb: actual_length %d transfer_buffer null\n",
+ urb->actual_length);
+ return -1;
+ }
+
if (usb_pipetype(urb->pipe) == PIPE_ISOCHRONOUS)
iovnum = 2 + urb->number_of_packets;
else
@@ -197,8 +204,8 @@ static int stub_send_ret_submit(struct stub_device *sdev)
/* 1. setup usbip_header */
setup_ret_submit_pdu(&pdu_header, urb);
- usbip_dbg_stub_tx("setup txdata seqnum: %d urb: %p\n",
- pdu_header.base.seqnum, urb);
+ usbip_dbg_stub_tx("setup txdata seqnum: %d\n",
+ pdu_header.base.seqnum);
usbip_header_correct_endian(&pdu_header, 1);
iov[iovnum].iov_base = &pdu_header;
diff --git a/drivers/usb/usbip/usbip_common.c b/drivers/usb/usbip/usbip_common.c
index 8b232290be6b..e24b24fa0f16 100644
--- a/drivers/usb/usbip/usbip_common.c
+++ b/drivers/usb/usbip/usbip_common.c
@@ -335,13 +335,10 @@ int usbip_recv(struct socket *sock, void *buf, int size)
char *bp = buf;
int osize = size;
- usbip_dbg_xmit("enter\n");
-
- if (!sock || !buf || !size) {
- pr_err("invalid arg, sock %p buff %p size %d\n", sock, buf,
- size);
+ if (!sock || !buf || !size)
return -EINVAL;
- }
+
+ usbip_dbg_xmit("enter\n");
do {
sock->sk->sk_allocation = GFP_NOIO;
@@ -354,11 +351,8 @@ int usbip_recv(struct socket *sock, void *buf, int size)
msg.msg_flags = MSG_NOSIGNAL;
result = kernel_recvmsg(sock, &msg, &iov, 1, size, MSG_WAITALL);
- if (result <= 0) {
- pr_debug("receive sock %p buf %p size %u ret %d total %d\n",
- sock, buf, size, result, total);
+ if (result <= 0)
goto err;
- }
size -= result;
buf += result;
diff --git a/drivers/usb/usbip/vhci_hcd.c b/drivers/usb/usbip/vhci_hcd.c
index d6dc165e924b..7f161b095176 100644
--- a/drivers/usb/usbip/vhci_hcd.c
+++ b/drivers/usb/usbip/vhci_hcd.c
@@ -506,9 +506,6 @@ static int vhci_urb_enqueue(struct usb_hcd *hcd, struct urb *urb,
struct vhci_device *vdev;
unsigned long flags;
- usbip_dbg_vhci_hc("enter, usb_hcd %p urb %p mem_flags %d\n",
- hcd, urb, mem_flags);
-
if (portnum > VHCI_HC_PORTS) {
pr_err("invalid port number %d\n", portnum);
return -ENODEV;
@@ -671,8 +668,6 @@ static int vhci_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status)
struct vhci_device *vdev;
unsigned long flags;
- pr_info("dequeue a urb %p\n", urb);
-
spin_lock_irqsave(&vhci->lock, flags);
priv = urb->hcpriv;
@@ -700,7 +695,6 @@ static int vhci_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status)
/* tcp connection is closed */
spin_lock(&vdev->priv_lock);
- pr_info("device %p seems to be disconnected\n", vdev);
list_del(&priv->list);
kfree(priv);
urb->hcpriv = NULL;
@@ -712,8 +706,6 @@ static int vhci_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status)
* vhci_rx will receive RET_UNLINK and give back the URB.
* Otherwise, we give back it here.
*/
- pr_info("gives back urb %p\n", urb);
-
usb_hcd_unlink_urb_from_ep(hcd, urb);
spin_unlock_irqrestore(&vhci->lock, flags);
@@ -741,8 +733,6 @@ static int vhci_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status)
unlink->unlink_seqnum = priv->seqnum;
- pr_info("device %p seems to be still connected\n", vdev);
-
/* send cmd_unlink and try to cancel the pending URB in the
* peer */
list_add_tail(&unlink->list, &vdev->unlink_tx);
@@ -823,7 +813,7 @@ static void vhci_shutdown_connection(struct usbip_device *ud)
/* need this? see stub_dev.c */
if (ud->tcp_socket) {
- pr_debug("shutdown tcp_socket %p\n", ud->tcp_socket);
+ pr_debug("shutdown tcp_socket\n");
kernel_sock_shutdown(ud->tcp_socket, SHUT_RDWR);
}
diff --git a/drivers/usb/usbip/vhci_rx.c b/drivers/usb/usbip/vhci_rx.c
index fc2d319e2360..5943deeec115 100644
--- a/drivers/usb/usbip/vhci_rx.c
+++ b/drivers/usb/usbip/vhci_rx.c
@@ -37,24 +37,23 @@ struct urb *pickup_urb_and_free_priv(struct vhci_device *vdev, __u32 seqnum)
urb = priv->urb;
status = urb->status;
- usbip_dbg_vhci_rx("find urb %p vurb %p seqnum %u\n",
- urb, priv, seqnum);
+ usbip_dbg_vhci_rx("find urb seqnum %u\n", seqnum);
switch (status) {
case -ENOENT:
/* fall through */
case -ECONNRESET:
- dev_info(&urb->dev->dev,
- "urb %p was unlinked %ssynchronuously.\n", urb,
- status == -ENOENT ? "" : "a");
+ dev_dbg(&urb->dev->dev,
+ "urb seq# %u was unlinked %ssynchronuously\n",
+ seqnum, status == -ENOENT ? "" : "a");
break;
case -EINPROGRESS:
/* no info output */
break;
default:
- dev_info(&urb->dev->dev,
- "urb %p may be in a error, status %d\n", urb,
- status);
+ dev_dbg(&urb->dev->dev,
+ "urb seq# %u may be in a error, status %d\n",
+ seqnum, status);
}
list_del(&priv->list);
@@ -80,8 +79,8 @@ static void vhci_recv_ret_submit(struct vhci_device *vdev,
spin_unlock_irqrestore(&vdev->priv_lock, flags);
if (!urb) {
- pr_err("cannot find a urb of seqnum %u\n", pdu->base.seqnum);
- pr_info("max seqnum %d\n",
+ pr_err("cannot find a urb of seqnum %u max seqnum %d\n",
+ pdu->base.seqnum,
atomic_read(&vhci->seqnum));
usbip_event_add(ud, VDEV_EVENT_ERROR_TCP);
return;
@@ -104,7 +103,7 @@ static void vhci_recv_ret_submit(struct vhci_device *vdev,
if (usbip_dbg_flag_vhci_rx)
usbip_dump_urb(urb);
- usbip_dbg_vhci_rx("now giveback urb %p\n", urb);
+ usbip_dbg_vhci_rx("now giveback urb %u\n", pdu->base.seqnum);
spin_lock_irqsave(&vhci->lock, flags);
usb_hcd_unlink_urb_from_ep(vhci_to_hcd(vhci), urb);
@@ -170,7 +169,7 @@ static void vhci_recv_ret_unlink(struct vhci_device *vdev,
pr_info("the urb (seqnum %d) was already given back\n",
pdu->base.seqnum);
} else {
- usbip_dbg_vhci_rx("now giveback urb %p\n", urb);
+ usbip_dbg_vhci_rx("now giveback urb %d\n", pdu->base.seqnum);
/* If unlink is successful, status is -ECONNRESET */
urb->status = pdu->u.ret_unlink.status;
diff --git a/drivers/usb/usbip/vhci_tx.c b/drivers/usb/usbip/vhci_tx.c
index 3e7878fe2fd4..a9a663a578b6 100644
--- a/drivers/usb/usbip/vhci_tx.c
+++ b/drivers/usb/usbip/vhci_tx.c
@@ -83,7 +83,8 @@ static int vhci_send_cmd_submit(struct vhci_device *vdev)
memset(&msg, 0, sizeof(msg));
memset(&iov, 0, sizeof(iov));
- usbip_dbg_vhci_tx("setup txdata urb %p\n", urb);
+ usbip_dbg_vhci_tx("setup txdata urb seqnum %lu\n",
+ priv->seqnum);
/* 1. setup usbip_header */
setup_cmd_submit_pdu(&pdu_header, urb);
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-28 22:31:34 +0000