diff options
Diffstat (limited to 'src/kernel/fs/vfs.c')
| -rw-r--r-- | src/kernel/fs/vfs.c | 204 |
1 files changed, 0 insertions, 204 deletions
diff --git a/src/kernel/fs/vfs.c b/src/kernel/fs/vfs.c deleted file mode 100644 index 0098d3b..0000000 --- a/src/kernel/fs/vfs.c +++ /dev/null @@ -1,204 +0,0 @@ -#include <stdint.h> -#include <stddef.h> -#include <kernel/fs/vfs.h> -#include <kernel/fs/ext2.h> -#include <kernel/lib/stdlib.h> -#include <kernel/memory/alloc.h> -#include <kernel/system.h> - -struct tree *fs_tree; -struct fs_node *fs_root = NULL; - -uint32_t fs_read(struct fs_node *node, uint32_t offset, uint32_t size, char *buf) -{ - if (node->read != NULL) - return node->read(node, offset, size, buf); - else - return 0; -} - -uint32_t fs_write(struct fs_node *node, uint32_t offset, uint32_t size, char *buf) -{ - if (node->write != NULL) - return node->write(node, offset, size, buf); - else - return 0; -} - -void fs_open(struct fs_node *node) -{ - if (node->open != NULL) - node->open(node); - else // TODO: Better ext2 default open workaround - fs_root->open(node); -} - -void fs_close(struct fs_node *node) -{ - if (node->close != NULL) - node->close(node); - else - fs_root->open(node); -} - -struct dirent *fs_read_dir(struct fs_node *node, uint32_t index) -{ - if ((node->type & DIR_NODE) != 0 && node->find_dir != NULL) - return node->read_dir(node, index); - else - return (struct dirent *)NULL; -} - -struct fs_node *fs_find_dir(struct fs_node *node, char *name) -{ - if ((node->type & DIR_NODE) != 0 && node->find_dir != NULL) - return node->find_dir(node, name); - else - return (struct fs_node *)NULL; -} - -// TODO: This should be somewhere else ig -char *next_str(char *str) -{ - str = &str[strlen(str)]; - - int i = 0; - while (str[i] == 0) - i++; - - return &str[i]; -} - -// By far not the fastest algorithm -struct fs_node *fs_path(struct fs_node *node, char *name) -{ - if (name[0] == '/') - return node; - - char *cpy = (char *)kmalloc(strlen(name) + 2); - strcpy(cpy, name); - cpy[strlen(name) + 1] = 1; - - name = cpy; - char *end = &name[strlen(name)]; - - int len = strlen(name); - for (int i = 0; i < len; i++) - if (name[i] == '/') - name[i] = 0; - - if (strlen(name) == 0) - name = next_str(name); - - do { - node = node->node_ptr; - - while (node != NULL) { - if (strcmp(node->name, name) == 0) - break; - - node = node->link; - } - - if (node == NULL) { - kfree(cpy); - return NULL; - } - - name = next_str(name); - } while ((uint32_t)name < (uint32_t)end); - - kfree(cpy); - return node; -} - -void vfs_ls(char *path) -{ - struct fs_node *dir = fs_path(fs_root, path); - if (dir == NULL) { - warn("Invalid path"); - return; - } - - struct fs_node *link = dir->node_ptr; - - log("Listing for %s", path); - while (link != NULL) { - log(link->name); - link = link->link; - } -} - -struct fs_node *vfs_get_dir(struct fs_node *node, char *name) -{ - char *cpy = (char *)kmalloc(strlen(name) + 2); - char *ref = cpy; - strcpy(cpy, name); - cpy[strlen(name) + 1] = 1; - name = cpy; - - for (int i = strlen(name); i >= 0; i--) - if (name[i] == '/') { - name[i] = 0; - break; - } - - struct fs_node *output; - if (strlen(name) == 0) - output = fs_root; - else - output = fs_path(node, name); - - kfree(ref); - return output; -} - -char *basename(char *name) -{ - for (int i = strlen(name); i >= 0; i--) - if (name[i] == '/') - return &name[i + 1]; - - return name; -} - -// TODO: Implement file touching in ext2 -struct fs_node *vfs_touch(struct fs_node *node, char *name) -{ - struct fs_node *dir = vfs_get_dir(node, name); - - if (dir == NULL) - return NULL; - - struct fs_node *file = (struct fs_node *)kmalloc(sizeof(struct fs_node)); - ext2_node_init(file); - file->type = FILE_NODE; - strcpy(file->name, basename(name)); - - //ext2_file *entry = ext2_new_file(); - //strcpy(file->name, entry->name); - - file->link = dir->node_ptr; - dir->node_ptr = file; - - return file; -} - -struct fs_node *vfs_mkdir(struct fs_node *node, char *name) -{ - struct fs_node *dir = vfs_get_dir(node, name); - if (dir == NULL) { - warn("Invalid path"); - return NULL; - } - - struct fs_node *file = (struct fs_node *)kmalloc(sizeof(struct fs_node)); - ext2_node_init(file); - file->type = DIR_NODE; - strcpy(file->name, basename(name)); - - file->link = dir->node_ptr; - dir->node_ptr = file; - - return file; -}
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