UbiquitousOS
/
anolis-cloud-kernel
mirror of https://gitee.com/anolis/cloud-kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

usbip: tools: usbipd: exclude exported devices from exportable device list 

usbipd includes exported devices in response to exportable device list.
Exclude exported devices from exportable device list to avoid:

- import requests for devices that are exported only to fail the request.
- revealing devices that are imported by a client to another client.

Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Shuah Khan 2018-03-21 20:21:56 -06:00 committed by Greg Kroah-Hartman
parent 1cbd53c8cd
commit 2699126bcf
1 changed files with 15 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
tools/usb/usbip/src/usbipd.c
View File

@ -175,10 +175,21 @@ static int send_reply_devlist(int connfd)
struct list_head *j;
int rc, i;
/*
* Exclude devices that are already exported to a client from
* the exportable device list to avoid:
* - import requests for devices that are exported only to
* fail the request.
* - revealing devices that are imported by a client to
* another client.
*/
reply.ndev = 0;
/* number of exported devices */
list_for_each(j, &driver->edev_list) {
reply.ndev += 1;
edev = list_entry(j, struct usbip_exported_device, node);
if (edev->status != SDEV_ST_USED)
reply.ndev += 1;
}
info("exportable devices: %d", reply.ndev);
@ -197,6 +208,9 @@ static int send_reply_devlist(int connfd)
list_for_each(j, &driver->edev_list) {
edev = list_entry(j, struct usbip_exported_device, node);
if (edev->status == SDEV_ST_USED)
continue;
dump_usb_device(&edev->udev);
memcpy(&pdu_udev, &edev->udev, sizeof(pdu_udev));
usbip_net_pack_usb_device(1, &pdu_udev);