diff options
Diffstat (limited to 'sys/include')
| -rw-r--r-- | sys/include/fs/tmpfs.h | 73 | ||||
| -rw-r--r-- | sys/include/sys/mount.h | 2 |
2 files changed, 75 insertions, 0 deletions
diff --git a/sys/include/fs/tmpfs.h b/sys/include/fs/tmpfs.h new file mode 100644 index 0000000..b2a5bbe --- /dev/null +++ b/sys/include/fs/tmpfs.h @@ -0,0 +1,73 @@ +/* + * Copyright (c) 2023-2025 Ian Marco Moffett and the Osmora Team. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of Hyra nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef _FS_TMPFS_H_ +#define _FS_TMPFS_H_ + +#include <sys/types.h> +#include <sys/limits.h> +#include <sys/vnode.h> +#include <sys/queue.h> +#include <sys/spinlock.h> +#include <vm/vm_obj.h> + +extern const struct vops g_tmpfs_vops; + +/* Tmpfs node types */ +#define TMPFS_NONE (VNON) /* No type */ +#define TMPFS_REG (VREG) /* Regular file [f] */ +#define TMPFS_DIR (VDIR) /* Directory [d] */ + +struct tmpfs_node; + +/* + * A tmpfs node represents an object within the + * tmpfs namespace such as a file, directory, etc. + * + * @rpath: /tmp/ relative path (for lookups) + * @type: The tmpfs node type [one-to-one to vtype] + * @len: Length of buffer + * @data: The backing file data + * @dirvp: Vnode of the parent node + * @vp: Vnode of the current node + * @lock: Lock protecting this node + */ +struct tmpfs_node { + char rpath[PATH_MAX]; + uint8_t type; + size_t len; + void *data; + struct vnode *dirvp; + struct vnode *vp; + struct spinlock lock; + TAILQ_HEAD(, tmpfs_node) dirents; + TAILQ_ENTRY(tmpfs_node) link; +}; + +#endif /* !_FS_TMPFS_H_ */ diff --git a/sys/include/sys/mount.h b/sys/include/sys/mount.h index 1fcdbfa..636c7bf 100644 --- a/sys/include/sys/mount.h +++ b/sys/include/sys/mount.h @@ -47,6 +47,7 @@ #define MOUNT_RAMFS "initramfs" #define MOUNT_DEVFS "devfs" #define MOUNT_CTLFS "ctlfs" +#define MOUNT_TMPFS "tmpfs" struct vfsops; struct mount; @@ -59,6 +60,7 @@ extern mountlist_t g_mountlist; extern const struct vfsops g_initramfs_vfsops; extern const struct vfsops g_devfs_vfsops; extern const struct vfsops g_ctlfs_vfsops; +extern const struct vfsops g_tmpfs_vfsops; struct mount { char *name; |