diff options
Diffstat (limited to 'bsd/drm/auth.c')
| -rw-r--r-- | bsd/drm/auth.c | 168 |
1 files changed, 0 insertions, 168 deletions
diff --git a/bsd/drm/auth.c b/bsd/drm/auth.c deleted file mode 100644 index 37d17be5..00000000 --- a/bsd/drm/auth.c +++ /dev/null @@ -1,168 +0,0 @@ -/* auth.c -- IOCTLs for authentication -*- c -*- - * Created: Tue Feb 2 08:37:54 1999 by faith@precisioninsight.com - * - * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas. - * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California. - * All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice (including the next - * paragraph) shall be included in all copies or substantial portions of the - * Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR - * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, - * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER - * DEALINGS IN THE SOFTWARE. - * - * Authors: - * Rickard E. (Rik) Faith <faith@valinux.com> - * - */ - -#define __NO_VERSION__ -#include "drmP.h" - -static int drm_hash_magic(drm_magic_t magic) -{ - return magic & (DRM_HASH_SIZE-1); -} - -static drm_file_t *drm_find_file(drm_device_t *dev, drm_magic_t magic) -{ - drm_file_t *retval = NULL; - drm_magic_entry_t *pt; - int hash = drm_hash_magic(magic); - - lockmgr(&dev->dev_lock, LK_EXCLUSIVE, 0, curproc); - for (pt = dev->magiclist[hash].head; pt; pt = pt->next) { - if (pt->priv->authenticated) continue; - if (pt->magic == magic) { - retval = pt->priv; - break; - } - } - lockmgr(&dev->dev_lock, LK_RELEASE, 0, curproc); - - return retval; -} - -int drm_add_magic(drm_device_t *dev, drm_file_t *priv, drm_magic_t magic) -{ - int hash; - drm_magic_entry_t *entry; - - DRM_DEBUG("%d\n", magic); - - hash = drm_hash_magic(magic); - entry = drm_alloc(sizeof(*entry), DRM_MEM_MAGIC); - if (!entry) return ENOMEM; - entry->magic = magic; - entry->priv = priv; - entry->next = NULL; - - lockmgr(&dev->dev_lock, LK_EXCLUSIVE, 0, curproc); - if (dev->magiclist[hash].tail) { - dev->magiclist[hash].tail->next = entry; - dev->magiclist[hash].tail = entry; - } else { - dev->magiclist[hash].head = entry; - dev->magiclist[hash].tail = entry; - } - lockmgr(&dev->dev_lock, LK_RELEASE, 0, curproc); - - return 0; -} - -int drm_remove_magic(drm_device_t *dev, drm_magic_t magic) -{ - drm_magic_entry_t *prev = NULL; - drm_magic_entry_t *pt; - int hash; - - DRM_DEBUG("%d\n", magic); - hash = drm_hash_magic(magic); - - lockmgr(&dev->dev_lock, LK_EXCLUSIVE, 0, curproc); - for (pt = dev->magiclist[hash].head; pt; prev = pt, pt = pt->next) { - if (pt->magic == magic) { - if (dev->magiclist[hash].head == pt) { - dev->magiclist[hash].head = pt->next; - } - if (dev->magiclist[hash].tail == pt) { - dev->magiclist[hash].tail = prev; - } - if (prev) { - prev->next = pt->next; - } - lockmgr(&dev->dev_lock, LK_RELEASE, 0, curproc); - return 0; - } - } - lockmgr(&dev->dev_lock, LK_RELEASE, 0, curproc); - - drm_free(pt, sizeof(*pt), DRM_MEM_MAGIC); - - return EINVAL; -} - -int drm_getmagic(dev_t kdev, u_long cmd, caddr_t data, - int flags, struct proc *p) -{ - static drm_magic_t sequence = 0; -#if 0 - static struct simplelock lock; /* XXX */ -#endif - drm_device_t *dev = kdev->si_drv1; - drm_file_t *priv; - drm_auth_t auth; - - /* Find unique magic */ - priv = drm_find_file_by_proc(dev, p); - if (!priv) { - DRM_DEBUG("can't find file structure\n"); - return EINVAL; - } - if (priv->magic) { - auth.magic = priv->magic; - } else { - do { - simple_lock(&lock); - if (!sequence) ++sequence; /* reserve 0 */ - auth.magic = sequence++; - simple_unlock(&lock); - } while (drm_find_file(dev, auth.magic)); - priv->magic = auth.magic; - drm_add_magic(dev, priv, auth.magic); - } - - DRM_DEBUG("%u\n", auth.magic); - *(drm_auth_t *) data = auth; - return 0; -} - -int drm_authmagic(dev_t kdev, u_long cmd, caddr_t data, - int flags, struct proc *p) -{ - drm_device_t *dev = kdev->si_drv1; - drm_auth_t auth; - drm_file_t *file; - - auth = *(drm_auth_t *) data; - DRM_DEBUG("%u\n", auth.magic); - if ((file = drm_find_file(dev, auth.magic))) { - file->authenticated = 1; - drm_remove_magic(dev, auth.magic); - return 0; - } - return EINVAL; -} |