Virtual filesystem WIP!HEADmaster

3 files changed, 62 insertions, 0 deletions

diff --git a/include/kernel/heap.h b/include/kernel/heap.h
index dfadf36..abb9bdf 100644
--- a/include/kernel/heap.h
+++ b/include/kernel/heap.h
@@ -1,5 +1,7 @@
 #include <stddef.h>
+#include <stdint.h>
 void *kmalloc(size_t);
 void *kmalloc_a(size_t);
 void *kmalloc_p(size_t, void**);
 void *kmalloc_ap(size_t, void**);
+void kmalloc_set_addr(uint32_t);
diff --git a/include/kernel/multiboot.h b/include/kernel/multiboot.h
index e1f7cf0..2d415bf 100644
--- a/include/kernel/multiboot.h
+++ b/include/kernel/multiboot.h
@@ -1,3 +1,6 @@
+#ifndef _MULTIBOOT_H_
+#define _MULTIBOOT_H_
+
 #include <stdint.h>
 
 struct multiboot_aout_symbol_table_t
@@ -38,6 +41,13 @@ struct vbe_info_t {
     uint16_t reserved2;
 } __attribute__((packed));
 
+struct multiboot_mod_t {
+    uint32_t mod_start;
+    uint32_t mod_end;
+    uint32_t mod_str;
+    uint32_t reserved;
+} __attribute__((packed));
+
 struct multiboot_info_t
 {
     /* Multiboot info version number */
@@ -88,3 +98,5 @@ struct multiboot_info_t
     uint16_t vbe_interface_off;
     uint16_t vbe_interface_len;
 } __attribute__((packed));
+
+#endif
diff --git a/include/kernel/vfs.h b/include/kernel/vfs.h
new file mode 100644
index 0000000..4977665
--- /dev/null
+++ b/include/kernel/vfs.h
@@ -0,0 +1,48 @@
+#include <stdint.h>
+
+#define VFS_DIR 0
+#define VFS_REG 1
+#define VFS_SPEC 2
+
+#define VFS_TYPEMASK 0x3
+
+struct vfs_node {
+    unsigned int flags;
+    char *name;
+    uint64_t file_len;
+    unsigned char *contents;
+    struct vfs_node *parent;
+    struct vfs_node *next;
+    struct vfs_node *child;
+};
+
+#define DT_BLK (1<<0)
+#define DT_CHR (1<<1)
+#define DT_DIR (1<<2)
+#define DT_FIFO (1<<3)
+#define DT_LNK (1<<4)
+#define DT_REG (1<<5)
+#define DT_SOCK (1<<6)
+#define DT_UNKNOWN (1<<7)
+
+struct dirent {
+    unsigned char d_type;
+    char d_name[256];
+};
+
+/* initializes an empty filesystem on the heap */
+struct vfs_node *vfs_init(void);
+
+/* creates a new, empty directory UNDER a directory node */
+int vfs_mkdir(struct vfs_node*, const char *name);
+
+/* creates a new, empty, regular file under a directory node */
+int vfs_creat(struct vfs_node*, const char *name);
+
+typedef struct DIR {
+    struct vfs_node *node;
+} DIR;
+
+DIR *vfs_opendir(struct vfs_node*);
+
+struct dirent *vfs_readdir(DIR *dirp);