Clean out for expt

Signed-off-by: Ian Moffett <ian@osmora.org>

1 files changed, 0 insertions, 262 deletions

diff --git a/sys/fs/initramfs.c b/sys/fs/initramfs.c
deleted file mode 100644
index e15c00d..0000000
--- a/sys/fs/initramfs.c
+++ /dev/null
@@ -1,262 +0,0 @@
-/*
- * Copyright (c) 2023-2024 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.
- */
-
-#include <fs/initramfs.h>
-#include <sys/cdefs.h>
-#include <sys/types.h>
-#include <sys/limine.h>
-#include <sys/errno.h>
-#include <sys/panic.h>
-#include <sys/vfs.h>
-#include <sys/vnode.h>
-#include <vm/dynalloc.h>
-#include <string.h>
-
-__MODULE_NAME("initramfs");
-__KERNEL_META("$Hyra$: initramfs.c, Ian Marco Moffett, "
-              "Initial ram filesystem");
-
-static volatile struct limine_module_request mod_req = {
-    .id = LIMINE_MODULE_REQUEST,
-    .revision = 0
-};
-
-static const char *initramfs = NULL;
-static size_t initramfs_size = 0;
-
-#define TAR_TYPEFLAG_NORMAL     '0'
-#define TAR_TYPEFLAG_HARDLINK   '1'
-#define TAR_TYPEFLAG_DIR        '5'
-
-struct tar_hdr {
-    char filename[100];
-    char mode[8];
-    char uid[8];
-    char gid[8];
-    char size[12];
-    char mtime[12];
-    char checksum[8];
-    char type;
-    char link_name[100];
-    char magic[6];
-    char version[2];
-    char uname[32];
-    char gname[32];
-    char dev_major[8];
-    char dev_minor[8];
-    char prefix[155];
-};
-
-static struct tar_hdr *initramfs_from_path(struct tar_hdr *hdr,
-                                           const char *path);
-
-static size_t
-getsize(const char *in);
-
-static inline char *
-hdr_to_contents(struct tar_hdr *hdr)
-{
-    return ((char*)hdr) + 0x200;
-}
-
-static int
-vop_vget(struct vnode *parent, const char *name, struct vnode **vp)
-{
-    struct tar_hdr *hdr;
-    struct vnode *vnode;
-    int status;
-    int vtype = VREG;
-
-    if (initramfs == NULL) {
-        return -EIO;
-    }
-
-    hdr = initramfs_from_path((void *)initramfs, name);
-
-    if (hdr == NULL) {
-        return -ENOENT;
-    }
-
-    if (hdr->type == TAR_TYPEFLAG_DIR) {
-        vtype = VDIR;
-    }
-
-    /* Allocate vnode for this file */
-    if ((status = vfs_alloc_vnode(&vnode, NULL, vtype)) != 0) {
-        return status;
-    }
-
-    vnode->parent = parent;
-    vnode->data = hdr;
-
-    vnode->vops = &g_initramfs_vops;
-    *vp = vnode;
-    return 0;
-}
-
-static int
-vop_read(struct vnode *vp, struct sio_txn *sio)
-{
-    struct tar_hdr *hdr;
-    size_t size;
-    char *contents;
-    char *buf = sio->buf;
-
-    if (vp->data == NULL) {
-        return -EIO;
-    }
-
-    hdr = vp->data;
-    size = getsize(hdr->size);
-    contents = hdr_to_contents(hdr);
-
-    for (size_t i = sio->offset; i < sio->len; ++i) {
-        if (i >= size) {
-            return i + 1;
-        }
-        buf[i - sio->offset] = contents[i];
-    }
-
-    return sio->len;
-}
-
-static int
-vop_getattr(struct vnode *vp, struct vattr *vattr)
-{
-    struct tar_hdr *hdr = vp->data;
-
-    if (hdr == NULL) {
-        return -EIO;
-    }
-
-    switch (hdr->type) {
-    case TAR_TYPEFLAG_NORMAL:
-        vattr->type = VREG;
-        break;
-    case TAR_TYPEFLAG_DIR:
-        vattr->type = VDIR;
-        break;
-    }
-
-    vattr->size = getsize(hdr->size);
-    return 0;
-}
-
-static char *
-get_module(const char *path, uint64_t *size) {
-    for (uint64_t i = 0; i < mod_req.response->module_count; ++i) {
-        if (strcmp(mod_req.response->modules[i]->path, path) == 0) {
-            *size = mod_req.response->modules[i]->size;
-            return mod_req.response->modules[i]->address;
-        }
-    }
-
-    return NULL;
-}
-
-static size_t
-getsize(const char *in)
-{
-    size_t size = 0, count = 1;
-
-    for (size_t j = 11; j > 0; --j, count *= 8) {
-        size += (in[j-1]-'0')*count;
-    }
-
-    return size;
-}
-
-static int
-initramfs_init(struct fs_info *info, struct vnode *source)
-{
-    if (source != NULL)
-        return -EINVAL;
-
-    initramfs = get_module("/boot/initramfs.tar", &initramfs_size);
-    info->caps = FSCAP_FULLPATH;
-
-    if (initramfs == NULL) {
-        panic("Failed to load initramfs\n");
-    }
-
-    return 0;
-}
-
-static struct tar_hdr *
-initramfs_from_path(struct tar_hdr *hdr, const char *path)
-{
-
-    uintptr_t addr = (uintptr_t)hdr;
-    size_t size;
-
-    if (*path != '/') {
-        return NULL;
-    }
-    ++path;
-
-    while (strcmp(hdr->magic, "ustar") == 0) {
-        size = getsize(hdr->size);
-
-        if (strcmp(hdr->filename, path) == 0) {
-            return hdr;
-        }
-
-        addr += 512 + __ALIGN_UP(size, 512);
-        hdr = (struct tar_hdr *)addr;
-    }
-
-    return NULL;
-}
-
-const char *
-initramfs_open(const char *path)
-{
-    struct tar_hdr *hdr;
-
-    if (initramfs == NULL) {
-        return NULL;
-    }
-
-    if (strlen(path) > 99) {
-        return NULL;
-    }
-
-    hdr = initramfs_from_path((void *)initramfs, path);
-    return (hdr == NULL) ? NULL : hdr_to_contents(hdr);
-}
-
-struct vfsops g_initramfs_ops = {
-    .init = initramfs_init,
-};
-
-struct vops g_initramfs_vops = {
-    .vget = vop_vget,
-    .read = vop_read,
-    .getattr = vop_getattr
-};