Add qemu 2.4.0

[kvmfornfv.git] / qemu / roms / openhackware / src / libfs / raw.c

diff --git a/qemu/roms/openhackware/src/libfs/raw.c b/qemu/roms/openhackware/src/libfs/raw.c
new file mode 100644 (file)
index 0000000..9ecd23a
--- /dev/null
+++ b/qemu/roms/openhackware/src/libfs/raw.c
@@ -0,0 +1,178 @@
+/*
+ * <raw.c>
+ *
+ * Open Hack'Ware BIOS raw file system management
+ * 
+ * Copyright (c) 2004-2005 Jocelyn Mayer
+ * 
+ *   This program is free software; you can redistribute it and/or
+ *   modify it under the terms of the GNU General Public License V2
+ *   as published by the Free Software Foundation
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program; if not, write to the Free Software
+ *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include "bios.h"
+#include "../libpart/libpart.h"
+#include "libfs.h"
+
+/* Raw filesystem (ie no filesystem) */
+static inode_t *fs_raw_get_inode (inode_t *parent, const unsigned char *name)
+{
+    inode_t *new;
+    fs_t *fs;
+    int flags;
+
+    if (parent != NULL) {
+        return NULL;
+    }
+    /* Open root inode */
+    flags = INODE_TYPE_DIR;
+    fs = NULL;
+    new = malloc(sizeof(inode_t));
+    memset(new, 0, sizeof(inode_t));
+    new->flags = flags;
+    new->name = strdup(name);
+
+    return new;
+}
+
+static void fs_raw_put_inode (inode_t *inode)
+{
+    free(inode);
+}
+
+static uint32_t fs_raw_map_bloc (unused inode_t *inode, uint32_t bloc)
+{
+    if (inode != NULL
+        /* XXX: can't figure out why I did this... */
+        /* && inode == inode->fs->bootfile*/
+        )
+         bloc += inode->blocs[0].bloc;
+
+    return bloc;
+}
+
+static inode_t *fs_raw_get_special_inode (fs_t *fs, int type)
+{
+    const unsigned char *name;
+    inode_t *new, *parent, **inp;
+    int flags;
+
+    new = NULL;
+    name = NULL;
+    parent = NULL;
+    inp = NULL;
+    flags = 0;
+    switch (type) {
+    case FILE_ROOT:
+        if (fs->root != NULL) {
+            new = fs->root;
+        } else {
+            flags = INODE_TYPE_DIR;
+            parent = NULL;
+            name = NULL;
+            inp = &fs->root;
+        }
+        break;
+    case FILE_BOOT:
+        if (fs->bootfile != NULL) {
+            dprintf("bootfile already exists\n");
+            new = fs->bootfile;
+        } else {
+            new = part_private_get(fs_part(fs));
+            if (fs->bootdir == NULL) {
+                dprintf("Get boot directory\n");
+                fs->bootdir = fs_raw_get_special_inode(fs, FILE_BOOTDIR);
+            }
+            parent = fs->bootdir;
+            if (new != NULL) {
+                dprintf("Fix bootfile\n");
+                new->parent = parent;
+                new->fs = fs;
+            } else {
+                dprintf("New bootfile\n");
+                flags = INODE_TYPE_FILE | INODE_FLAG_EXEC | INODE_FLAG_BOOT;
+                name = "ofwboot";
+                inp = &fs->bootfile;
+            }
+        }
+        break;
+    case FILE_BOOTDIR:
+        if (fs->bootdir != NULL) {
+            new = fs->bootdir;
+        } else {
+            flags = INODE_TYPE_DIR;
+            parent = fs->root;
+            name = "boot";
+            inp = &fs->bootdir;
+        }
+        break;
+    default:
+        return NULL;
+    }
+    if (new == NULL) {
+        new = malloc(sizeof(inode_t));
+        memset(new, 0, sizeof(inode_t));
+        new->flags = flags;
+        new->parent = parent;
+        if (name != NULL)
+            new->name = strdup(name);
+        new->fs = fs;
+        *inp = new;
+    }
+    
+    return new;
+}
+
+static fs_ops_t fs_ops_raw = {
+    &fs_raw_get_inode,
+    &fs_raw_put_inode,
+    &fs_raw_map_bloc,
+    &fs_raw_get_special_inode,
+};
+
+int fs_raw_set_bootfile (part_t *part,
+                         uint32_t start_bloc, uint32_t start_offset,
+                         uint32_t size_bloc, uint32_t size_offset)
+{
+    inode_t *new;
+
+    new = malloc(sizeof(inode_t));
+    if (new == NULL)
+        return -1;
+    DPRINTF("%s: pos %d %d size %d %d\n", __func__, start_bloc, start_offset,
+            size_bloc, size_offset);
+    memset(new, 0, sizeof(inode_t));
+    new->flags = INODE_TYPE_FILE | INODE_FLAG_EXEC | INODE_FLAG_BOOT;
+    new->name = "ofwboot";
+    new->blocs[0].bloc = start_bloc;
+    new->blocs[0].offset = start_offset;
+    new->size.bloc = size_bloc;
+    new->size.offset = size_offset;
+    new->nb_blocs = size_bloc;
+    part_private_set(part, new);
+
+    return 0;
+}
+
+int fs_raw_probe (part_t *part, uint32_t *size,
+                  fs_ops_t **fs_ops, unsigned char **name,
+                  unused void **private)
+{
+    DPRINTF("%s: %p map_bloc %p\n", __func__, &fs_ops_raw, &fs_raw_map_bloc);
+    *fs_ops = &fs_ops_raw;
+    *name = "Raw FS";
+    *size = part_size(part);
+
+    return FS_TYPE_RAW;
+}