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vfs filesystem mounting

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Matheus
2022-08-02 22:14:32 -03:00
parent 8d90e27f15
commit 2419b2e9e0
6 changed files with 155 additions and 29 deletions
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src/include/kernel/tmpfs.h
+8
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@@ -0,0 +1,8 @@
#ifndef _TMPFS_H_INCLUDE
#define _TMPFS_H_INCLUDE
#include <kernel/vfs.h>
fscalls_t* tmpfs_getfuncs();
#endif
src/include/kernel/vfs.h
+11 -10
View File
@@ -18,6 +18,7 @@ typedef struct {
typedef struct _vnode_t {
stat st;
char* name;
fs_t* fs;
void* fsdata;
size_t refcount;
@@ -28,23 +29,23 @@ typedef struct _vnode_t {
typedef struct _dirnode_t{
vnode_t vnode;
struct _dirnode_t* mountednode;
struct _dirnode_t* mount;
hashtable children;
} dirnode_t;
// fs specific calls called by the vfs on filesystems
typedef struct _fscalls_t {
// prepares the filesystem using a filesystem data pointer and returns the root node
dirnode_t* (*mount)(void*);
// prepares the filesystem using a filesystem data pointer and device, returning the root node in rootptr
int (*mount)(dirnode_t** rootptr, vnode_t* device, int mountflags, void* fsinfo);
// cleanup of the filesystem
int (*umount)();
int (*umount)(fs_t* fs);
// opens a file under a dirnode
// args: parent, name
int (*open)(dirnode_t*, char*);
// cleans up a vfsnode
int (*open)(dirnode_t* parent, char* name);
// cleans up a node
// args: the node to clean
int (*close)(vnode_t*);
int (*close)(vnode_t* node);
// creates a new directory with the right mode
// args: parent, name, mode
int (*mkdir)(dirnode_t* parent, char* name, mode_t mode);
@@ -54,7 +55,7 @@ typedef struct _fscalls_t {
} fscalls_t;
int vfs_mount(dirnode_t* ref, char* device, char* mountpoint, char* fs);
int vfs_mount(dirnode_t* ref, char* device, char* mountpoint, char* fs, int mountflags, void* fsinfo);
int vfs_umount(dirnode_t* ref, char* mountpoint);
int vfs_open(vnode_t* buf, dirnode_t* ref, char* path, int flags, mode_t mode);
int vfs_close(vnode_t* node);
@@ -66,8 +67,8 @@ void vfs_init();
dirnode_t* vfs_root();
void vfs_acquirenode(vnode_t* node);
void vfs_releasenode(vnode_t* node);
vnode_t* vfs_newnode(fs_t* fs, void* fsdata);
dirnode_t* vfs_newdirnode(fs_t* fs, void* fsdata);
vnode_t* vfs_newnode(char* name, fs_t* fs, void* fsdata);
dirnode_t* vfs_newdirnode(char* name, fs_t* fs, void* fsdata);
void vfs_destroynode(vnode_t* node);
int vfs_resolvepath(vnode_t** result, dirnode_t* ref, char* path);