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Commit 3fb4eec6 authored by Rémi Bernon's avatar Rémi Bernon Committed by Alexandre Julliard
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winebus.sys: Make hidraw report callbacks consistent.

This was inconsistently forcing the first report byte to the report id. The report ids are stripped when they aren't used, in the packet hidclass.sys provides, but hidraw API wants them all the time, so we need to use an intermediate buffer. Also ioctl length argument have a lower size capacity, so we have to check for it as well. Signed-off-by: 's avatarRémi Bernon <rbernon@codeweavers.com> Signed-off-by: 's avatarAlexandre Julliard <julliard@winehq.org>
parent f884ee46
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Showing with 40 additions and 43 deletions
dlls/winebus.sys/bus_udev.c
View file @ 3fb4eec6
......@@ -720,32 +720,27 @@ static NTSTATUS begin_report_processing(DEVICE_OBJECT *device)
static NTSTATUS hidraw_set_output_report(DEVICE_OBJECT *device, UCHAR id, BYTE *report, DWORD length, ULONG_PTR *written)
{
struct platform_private* ext = impl_from_DEVICE_OBJECT(device);
int rc;
BYTE buffer[8192];
int count = 0;
if (id != 0)
rc = write(ext->device_fd, report, length);
if ((buffer[0] = id))
count = write(ext->device_fd, report, length);
else if (length > sizeof(buffer) - 1)
ERR_(hid_report)("id %d length %u >= 8192, cannot write\n", id, length);
else
{
BYTE report_buffer[1024];
if (length + 1 > sizeof(report_buffer))
{
ERR("Output report buffer too small\n");
return STATUS_UNSUCCESSFUL;
}
report_buffer[0] = 0;
memcpy(&report_buffer[1], report, length);
rc = write(ext->device_fd, report_buffer, length + 1);
memcpy(buffer + 1, report, length);
count = write(ext->device_fd, buffer, length + 1);
}
if (rc > 0)
if (count > 0)
{
*written = rc;
*written = count;
return STATUS_SUCCESS;
}
else
{
TRACE("write failed: %d %d %s\n", rc, errno, strerror(errno));
ERR_(hid_report)("id %d write failed error: %d %s\n", id, errno, strerror(errno));
*written = 0;
return STATUS_UNSUCCESSFUL;
}
......@@ -754,19 +749,28 @@ static NTSTATUS hidraw_set_output_report(DEVICE_OBJECT *device, UCHAR id, BYTE *
static NTSTATUS hidraw_get_feature_report(DEVICE_OBJECT *device, UCHAR id, BYTE *report, DWORD length, ULONG_PTR *read)
{
#if defined(HAVE_LINUX_HIDRAW_H) && defined(HIDIOCGFEATURE)
int rc;
struct platform_private* ext = impl_from_DEVICE_OBJECT(device);
report[0] = id;
length = min(length, 0x1fff);
rc = ioctl(ext->device_fd, HIDIOCGFEATURE(length), report);
if (rc >= 0)
BYTE buffer[8192];
int count = 0;
if ((buffer[0] = id) && length <= 0x1fff)
count = ioctl(ext->device_fd, HIDIOCGFEATURE(length), report);
else if (length > sizeof(buffer) - 1)
ERR_(hid_report)("id %d length %u >= 8192, cannot read\n", id, length);
else
{
*read = rc;
count = ioctl(ext->device_fd, HIDIOCGFEATURE(length + 1), buffer);
memcpy(report, buffer + 1, length);
}
if (count > 0)
{
*read = count;
return STATUS_SUCCESS;
}
else
{
TRACE_(hid_report)("ioctl(HIDIOCGFEATURE(%d)) failed: %d %s\n", length, errno, strerror(errno));
ERR_(hid_report)("id %d read failed, error: %d %s\n", id, errno, strerror(errno));
*read = 0;
return STATUS_UNSUCCESSFUL;
}
......@@ -779,35 +783,28 @@ static NTSTATUS hidraw_get_feature_report(DEVICE_OBJECT *device, UCHAR id, BYTE
static NTSTATUS hidraw_set_feature_report(DEVICE_OBJECT *device, UCHAR id, BYTE *report, DWORD length, ULONG_PTR *written)
{
#if defined(HAVE_LINUX_HIDRAW_H) && defined(HIDIOCSFEATURE)
int rc;
struct platform_private* ext = impl_from_DEVICE_OBJECT(device);
BYTE *feature_buffer;
BYTE buffer[8192];
int count = 0;
if (id == 0)
if ((buffer[0] = id) && length <= 0x1fff)
count = ioctl(ext->device_fd, HIDIOCSFEATURE(length), report);
else if (length > sizeof(buffer) - 1)
ERR_(hid_report)("id %d length %u >= 8192, cannot write\n", id, length);
else
{
if (length + 1 > sizeof(buffer))
{
ERR("Output feature buffer too small\n");
return STATUS_UNSUCCESSFUL;
}
buffer[0] = 0;
memcpy(&buffer[1], report, length);
feature_buffer = buffer;
length = length + 1;
memcpy(buffer + 1, report, length);
count = ioctl(ext->device_fd, HIDIOCSFEATURE(length + 1), buffer);
}
else
feature_buffer = report;
length = min(length, 0x1fff);
rc = ioctl(ext->device_fd, HIDIOCSFEATURE(length), feature_buffer);
if (rc >= 0)
if (count > 0)
{
*written = rc;
*written = count;
return STATUS_SUCCESS;
}
else
{
TRACE_(hid_report)("ioctl(HIDIOCSFEATURE(%d)) failed: %d %s\n", length, errno, strerror(errno));
ERR_(hid_report)("id %d write failed, error: %d %s\n", id, errno, strerror(errno));
*written = 0;
return STATUS_UNSUCCESSFUL;
}
......
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