userns: Convert drm to use kuid and kgid and struct pid where appropriate
Blink Blink this had not been converted to use struct pid ages ago?
- On drm open capture the openers kuid and struct pid.
- On drm close release the kuid and struct pid
- When reporting the uid and pid convert the kuid and struct pid
into values in the appropriate namespace.
Cc: dri-devel@lists.freedesktop.org
Acked-by: Dave Airlie <airlied@redhat.com>
Acked-by: Serge Hallyn <serge.hallyn@canonical.com>
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
diff --git a/drivers/gpu/drm/drm_fops.c b/drivers/gpu/drm/drm_fops.c
index 5062eec..433d2fa 100644
--- a/drivers/gpu/drm/drm_fops.c
+++ b/drivers/gpu/drm/drm_fops.c
@@ -251,7 +251,7 @@
filp->private_data = priv;
priv->filp = filp;
priv->uid = current_euid();
- priv->pid = task_pid_nr(current);
+ priv->pid = get_pid(task_pid(current));
priv->minor = idr_find(&drm_minors_idr, minor_id);
priv->ioctl_count = 0;
/* for compatibility root is always authenticated */
@@ -524,6 +524,7 @@
if (drm_core_check_feature(dev, DRIVER_PRIME))
drm_prime_destroy_file_private(&file_priv->prime);
+ put_pid(file_priv->pid);
kfree(file_priv);
/* ========================================================
diff --git a/drivers/gpu/drm/drm_info.c b/drivers/gpu/drm/drm_info.c
index 8928edb..eb0af39 100644
--- a/drivers/gpu/drm/drm_info.c
+++ b/drivers/gpu/drm/drm_info.c
@@ -191,8 +191,9 @@
seq_printf(m, "%c %3d %5d %5d %10u %10lu\n",
priv->authenticated ? 'y' : 'n',
priv->minor->index,
- priv->pid,
- priv->uid, priv->magic, priv->ioctl_count);
+ pid_vnr(priv->pid),
+ from_kuid_munged(seq_user_ns(m), priv->uid),
+ priv->magic, priv->ioctl_count);
}
mutex_unlock(&dev->struct_mutex);
return 0;
diff --git a/drivers/gpu/drm/drm_ioctl.c b/drivers/gpu/drm/drm_ioctl.c
index 64a62c6..39a4383 100644
--- a/drivers/gpu/drm/drm_ioctl.c
+++ b/drivers/gpu/drm/drm_ioctl.c
@@ -215,8 +215,8 @@
list_for_each_entry(pt, &dev->filelist, lhead) {
if (i++ >= idx) {
client->auth = pt->authenticated;
- client->pid = pt->pid;
- client->uid = pt->uid;
+ client->pid = pid_vnr(pt->pid);
+ client->uid = from_kuid_munged(current_user_ns(), pt->uid);
client->magic = pt->magic;
client->iocs = pt->ioctl_count;
mutex_unlock(&dev->struct_mutex);
diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index d6b67bb..9bc5c6a 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -426,8 +426,8 @@
/** File private data */
struct drm_file {
int authenticated;
- pid_t pid;
- uid_t uid;
+ struct pid *pid;
+ kuid_t uid;
drm_magic_t magic;
unsigned long ioctl_count;
struct list_head lhead;
diff --git a/init/Kconfig b/init/Kconfig
index d09738d..6db6e75 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -936,7 +936,6 @@
depends on QUOTA = n
depends on QUOTACTL = n
depends on BSD_PROCESS_ACCT = n
- depends on DRM = n
# Networking
depends on NET_9P = n
