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patch file systems with the acl checks
[lunaix-os.git]
/
lunaix-os
/
kernel
/
fs
/
twifs
/
twifs.c
diff --git
a/lunaix-os/kernel/fs/twifs/twifs.c
b/lunaix-os/kernel/fs/twifs/twifs.c
index 729b5f770f7ea164d91f24d7b78e553433b1aa44..3679ee1303f70bc5517544dfc4b0de60d8f34ce8 100644
(file)
--- a/
lunaix-os/kernel/fs/twifs/twifs.c
+++ b/
lunaix-os/kernel/fs/twifs/twifs.c
@@
-8,16
+8,18
@@
* @copyright Copyright (c) 2022
*
*/
* @copyright Copyright (c) 2022
*
*/
-#include <klibc/st
dio
.h>
+#include <klibc/st
rfmt
.h>
#include <klibc/string.h>
#include <lunaix/clock.h>
#include <klibc/string.h>
#include <lunaix/clock.h>
-#include <lunaix/fs.h>
+#include <lunaix/fs
/api
.h>
#include <lunaix/fs/twifs.h>
#include <lunaix/fs/twimap.h>
#include <lunaix/mm/cake.h>
#include <lunaix/mm/valloc.h>
#include <lunaix/spike.h>
#include <lunaix/fs/twifs.h>
#include <lunaix/fs/twimap.h>
#include <lunaix/mm/cake.h>
#include <lunaix/mm/valloc.h>
#include <lunaix/spike.h>
+#include <asm/pagetable.h>
+
static struct twifs_node* fs_root;
static struct cake_pile* twi_pile;
static struct twifs_node* fs_root;
static struct cake_pile* twi_pile;
@@
-56,6
+58,13
@@
__twifs_init_inode(struct v_superblock* vsb, struct v_inode* inode)
{
inode->ops = (struct v_inode_ops*)&twifs_inode_ops;
inode->default_fops = (struct v_file_ops*)&twifs_file_ops;
{
inode->ops = (struct v_inode_ops*)&twifs_inode_ops;
inode->default_fops = (struct v_file_ops*)&twifs_file_ops;
+
+
+ // we set default access right to be 0660.
+ // TODO need a way to allow this to be changed
+
+ fsapi_inode_setaccess(inode, FSACL_u(R, W, _) | FSACL_g(R, W, _));
+ fsapi_inode_setowner(inode, 0, 0);
}
int
}
int
@@
-77,6
+86,12
@@
__twifs_mount(struct v_superblock* vsb, struct v_dnode* mount_point)
return 0;
}
return 0;
}
+int
+__twifs_unmount(struct v_superblock* vsb)
+{
+ return 0;
+}
+
int
__twifs_fwrite(struct v_inode* inode, void* buffer, size_t len, size_t fpos)
{
int
__twifs_fwrite(struct v_inode* inode, void* buffer, size_t len, size_t fpos)
{
@@
-87,6
+102,12
@@
__twifs_fwrite(struct v_inode* inode, void* buffer, size_t len, size_t fpos)
return twi_node->ops.write(inode, buffer, len, fpos);
}
return twi_node->ops.write(inode, buffer, len, fpos);
}
+int
+__twifs_fwrite_pg(struct v_inode* inode, void* buffer, size_t fpos)
+{
+ return __twifs_fwrite(inode, buffer, PAGE_SIZE, fpos);
+}
+
int
__twifs_fread(struct v_inode* inode, void* buffer, size_t len, size_t fpos)
{
int
__twifs_fread(struct v_inode* inode, void* buffer, size_t len, size_t fpos)
{
@@
-97,6
+118,12
@@
__twifs_fread(struct v_inode* inode, void* buffer, size_t len, size_t fpos)
return twi_node->ops.read(inode, buffer, len, fpos);
}
return twi_node->ops.read(inode, buffer, len, fpos);
}
+int
+__twifs_fread_pg(struct v_inode* inode, void* buffer, size_t fpos)
+{
+ return __twifs_fread(inode, buffer, PAGE_SIZE, fpos);
+}
+
struct twifs_node*
__twifs_get_node(struct twifs_node* parent, struct hstr* name)
{
struct twifs_node*
__twifs_get_node(struct twifs_node* parent, struct hstr* name)
{
@@
-118,7
+145,7
@@
__twifs_dirlookup(struct v_inode* inode, struct v_dnode* dnode)
{
struct twifs_node* twi_node = (struct twifs_node*)inode->data;
{
struct twifs_node* twi_node = (struct twifs_node*)inode->data;
- if (!
(twi_node->itype & VFS_IFDIR
)) {
+ if (!
check_directory_node(inode
)) {
return ENOTDIR;
}
return ENOTDIR;
}
@@
-151,14
+178,17
@@
int
__twifs_iterate_dir(struct v_file* file, struct dir_context* dctx)
{
struct twifs_node* twi_node = (struct twifs_node*)(file->inode->data);
__twifs_iterate_dir(struct v_file* file, struct dir_context* dctx)
{
struct twifs_node* twi_node = (struct twifs_node*)(file->inode->data);
-
int counter = 0
;
+
unsigned int counter = 2
;
struct twifs_node *pos, *n;
struct twifs_node *pos, *n;
+ if (fsapi_handle_pseudo_dirent(file, dctx)) {
+ return 1;
+ }
+
llist_for_each(pos, n, &twi_node->children, siblings)
{
llist_for_each(pos, n, &twi_node->children, siblings)
{
- if (counter++ >= dctx->index) {
- dctx->index = counter;
- dctx->read_complete_callback(
+ if (counter++ >= file->f_pos) {
+ fsapi_dir_report(
dctx, pos->name.value, pos->name.len, vfs_get_dtype(pos->itype));
return 1;
}
dctx, pos->name.value, pos->name.len, vfs_get_dtype(pos->itype));
return 1;
}
@@
-180,7
+210,7
@@
__twifs_openfile(struct v_inode* inode, struct v_file* file)
int
twifs_rm_node(struct twifs_node* node)
{
int
twifs_rm_node(struct twifs_node* node)
{
- if (
(node->itype &
VFS_IFDIR) && !llist_empty(&node->children)) {
+ if (
check_itype(node->itype,
VFS_IFDIR) && !llist_empty(&node->children)) {
return ENOTEMPTY;
}
llist_delete(&node->siblings);
return ENOTEMPTY;
}
llist_delete(&node->siblings);
@@
-192,9
+222,9
@@
struct twifs_node*
twifs_file_node_vargs(struct twifs_node* parent, const char* fmt, va_list args)
{
char buf[VFS_NAME_MAXLEN];
twifs_file_node_vargs(struct twifs_node* parent, const char* fmt, va_list args)
{
char buf[VFS_NAME_MAXLEN];
- size_t len =
__ksprintf_internal
(buf, fmt, VFS_NAME_MAXLEN, args);
+ size_t len =
ksnprintfv
(buf, fmt, VFS_NAME_MAXLEN, args);
- return __twifs_new_node(parent ? parent : fs_root, buf, len,
VFS_IFSEQDEV
);
+ return __twifs_new_node(parent ? parent : fs_root, buf, len,
F_FILE
);
}
struct twifs_node*
}
struct twifs_node*
@@
-217,7
+247,7
@@
twifs_dir_node(struct twifs_node* parent, const char* fmt, ...)
va_start(args, fmt);
char buf[VFS_NAME_MAXLEN];
va_start(args, fmt);
char buf[VFS_NAME_MAXLEN];
- size_t len =
__ksprintf_internal
(buf, fmt, VFS_NAME_MAXLEN, args);
+ size_t len =
ksnprintfv
(buf, fmt, VFS_NAME_MAXLEN, args);
struct twifs_node* twi_node =
__twifs_new_node(parent ? parent : fs_root, buf, len, VFS_IFDIR);
struct twifs_node* twi_node =
__twifs_new_node(parent ? parent : fs_root, buf, len, VFS_IFDIR);
@@
-229,28
+259,21
@@
twifs_dir_node(struct twifs_node* parent, const char* fmt, ...)
void
twifs_init()
{
void
twifs_init()
{
- twi_pile = cake_new_pile("twifs_node", sizeof(struct twifs_node), 1, 0);
-
- struct filesystem* twifs = vzalloc(sizeof(struct filesystem));
- twifs->fs_name = HSTR("twifs", 5);
- twifs->mount = __twifs_mount;
- twifs->types = FSTYPE_ROFS;
- twifs->fs_id = 0;
-
- fsm_register(twifs);
+ struct filesystem* fs;
+ fs = fsapi_fs_declare("twifs", FSTYPE_PSEUDO | FSTYPE_ROFS);
+
+ fsapi_fs_set_mntops(fs, __twifs_mount, __twifs_unmount);
+ fsapi_fs_finalise(fs);
+ twi_pile = cake_new_pile("twifs_node", sizeof(struct twifs_node), 1, 0);
fs_root = twifs_dir_node(NULL, NULL, 0, 0);
}
fs_root = twifs_dir_node(NULL, NULL, 0, 0);
}
+EXPORT_FILE_SYSTEM(twifs, twifs_init);
void
twifs_register_plugins()
{
void
twifs_register_plugins()
{
- int i = 0;
- ptr_t init_twifs_plugin_fn;
- ldga_foreach(twiplugin_inits, ptr_t, i, init_twifs_plugin_fn)
- {
- ((void (*)())init_twifs_plugin_fn)();
- }
+ ldga_invoke_fn0(twiplugin_inits);
}
int
}
int
@@
-279,9
+302,9
@@
twifs_mapping(struct twifs_node* parent, void* data, const char* fmt, ...)
const struct v_file_ops twifs_file_ops = { .close = default_file_close,
.read = __twifs_fread,
const struct v_file_ops twifs_file_ops = { .close = default_file_close,
.read = __twifs_fread,
- .read_page = __twifs_fread,
+ .read_page = __twifs_fread
_pg
,
.write = __twifs_fwrite,
.write = __twifs_fwrite,
- .write_page = __twifs_fwrite,
+ .write_page = __twifs_fwrite
_pg
,
.readdir = __twifs_iterate_dir };
const struct v_inode_ops twifs_inode_ops = { .dir_lookup = __twifs_dirlookup,
.readdir = __twifs_iterate_dir };
const struct v_inode_ops twifs_inode_ops = { .dir_lookup = __twifs_dirlookup,