char *
loader_get_device_name_for_fd(int fd)
{
char *device_name = NULL;
#ifdef HAVE_LIBUDEV
struct udev *udev;
struct udev_device *device;
const char *const_device_name;
UDEV_SYMBOL(struct udev *, udev_new, (void));
UDEV_SYMBOL(const char *, udev_device_get_devnode,
(struct udev_device *));
UDEV_SYMBOL(struct udev_device *, udev_device_unref,
(struct udev_device *));
UDEV_SYMBOL(struct udev *, udev_unref, (struct udev *));
udev = udev_new();
device = udev_device_new_from_fd(udev, fd);
if (device == NULL)
return NULL;
const_device_name = udev_device_get_devnode(device);
if (!const_device_name)
goto out;
device_name = strdup(const_device_name);
out:
udev_device_unref(device);
udev_unref(udev);
#endif
return device_name;
}
static int
libudev_get_pci_id_for_fd(int fd, int *vendor_id, int *chip_id)
{
struct udev *udev = NULL;
struct udev_device *device = NULL, *parent;
const char *pci_id;
UDEV_SYMBOL(struct udev *, udev_new, (void));
UDEV_SYMBOL(struct udev_device *, udev_device_get_parent,
(struct udev_device *));
UDEV_SYMBOL(const char *, udev_device_get_property_value,
(struct udev_device *, const char *));
UDEV_SYMBOL(struct udev_device *, udev_device_unref,
(struct udev_device *));
UDEV_SYMBOL(struct udev *, udev_unref, (struct udev *));
*chip_id = -1;
if (dlsym_failed)
return 0;
udev = udev_new();
device = udev_device_new_from_fd(udev, fd);
if (!device)
goto out;
parent = udev_device_get_parent(device);
if (parent == NULL) {
log_(_LOADER_WARNING, "MESA-LOADER: could not get parent device\n");
goto out;
}
pci_id = udev_device_get_property_value(parent, "PCI_ID");
if (pci_id == NULL) {
log_(_LOADER_INFO, "MESA-LOADER: no PCI ID\n");
*chip_id = -1;
goto out;
} else if (sscanf(pci_id, "%x:%x", vendor_id, chip_id) != 2) {
log_(_LOADER_WARNING, "MESA-LOADER: malformed PCI ID\n");
*chip_id = -1;
goto out;
}
out:
if (device)
udev_device_unref(device);
if (udev)
udev_unref(udev);
return (*chip_id >= 0);
}