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backends: Allow opening /sys/ files on MetaLauncher

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libinput may want to access those for fetching LED status, as those are
requested readonly, just forward the request to plain open().

https://bugzilla.gnome.org/show_bug.cgi?id=778472
This commit is contained in:
Carlos Garnacho 2017-02-11 00:00:59 +01:00
parent ead62f1901
commit 2d18b18fe5
1 changed files with 20 additions and 0 deletions
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20
src/backends/native/meta-launcher.c
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@ -58,6 +58,7 @@ struct _MetaLauncher
Login1Session *session_proxy; Login1Session *session_proxy;
Login1Seat *seat_proxy; Login1Seat *seat_proxy;
GHashTable *sysfs_fds;
gboolean session_active; gboolean session_active;
int kms_fd; int kms_fd;
@ -220,6 +221,15 @@ on_evdev_device_open (const char *path,
int fd; int fd;
int major, minor; int major, minor;
/* Allow readonly access to sysfs */
if (g_str_has_prefix (path, "/sys/"))
{
fd = open (path, flags);
if (fd >= 0)
g_hash_table_add (self->sysfs_fds, GINT_TO_POINTER (fd));
return fd;
}
if (!get_device_info_from_path (path, &major, &minor)) if (!get_device_info_from_path (path, &major, &minor))
{ {
g_set_error (error, g_set_error (error,
@ -243,6 +253,14 @@ on_evdev_device_close (int fd,
int major, minor; int major, minor;
GError *error = NULL; GError *error = NULL;
if (g_hash_table_lookup (self->sysfs_fds, GINT_TO_POINTER (fd)))
{
/* /sys/ paths just need close() here */
g_hash_table_remove (self->sysfs_fds, GINT_TO_POINTER (fd));
close (fd);
return;
}
if (!get_device_info_from_fd (fd, &major, &minor)) if (!get_device_info_from_fd (fd, &major, &minor))
{ {
g_warning ("Could not get device info for fd %d: %m", fd); g_warning ("Could not get device info for fd %d: %m", fd);
@ -540,6 +558,7 @@ meta_launcher_new (GError **error)
self = g_slice_new0 (MetaLauncher); self = g_slice_new0 (MetaLauncher);
self->session_proxy = g_object_ref (session_proxy); self->session_proxy = g_object_ref (session_proxy);
self->seat_proxy = g_object_ref (seat_proxy); self->seat_proxy = g_object_ref (seat_proxy);
self->sysfs_fds = g_hash_table_new (NULL, NULL);
self->session_active = TRUE; self->session_active = TRUE;
self->kms_fd = kms_fd; self->kms_fd = kms_fd;
@ -565,6 +584,7 @@ meta_launcher_free (MetaLauncher *self)
{ {
g_object_unref (self->seat_proxy); g_object_unref (self->seat_proxy);
g_object_unref (self->session_proxy); g_object_unref (self->session_proxy);
g_hash_table_destroy (self->sysfs_fds);
g_free (self->kms_file_path); g_free (self->kms_file_path);
g_slice_free (MetaLauncher, self); g_slice_free (MetaLauncher, self);
} }