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Initrd parsing and more VFS funcs.

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Finished the initrd_parse() function for now and added vfs_open(), vfs_close() and vfs_write()
This commit is contained in:
Matheus
2022-08-04 19:31:10 -03:00
parent 28710b6aa8
commit 479c51ec52
4 changed files with 87 additions and 9 deletions
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src/fs/initrd.c
+30 -3
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@@ -7,6 +7,14 @@
#define TAR_BLOCKSIZE 512
#define TAR_FILE 0
#define TAR_HARDLINK 1
#define TAR_SYMLINK 2
#define TAR_CHARDEV 3
#define TAR_BLOCK 4
#define TAR_DIR 5
#define TAR_FIFO 6
static volatile struct limine_module_request modreq = {
.id = LIMINE_MODULE_REQUEST,
.revision = 0
@@ -137,11 +145,30 @@ void initrd_parse(){
if(strncmp("ustar", entry.indicator, 5))
break;
printf("NAME: %s SIZE: %lu\n", entry.name, entry.size);
void* datastart = addr + TAR_BLOCKSIZE;
addr += TAR_BLOCKSIZE + TAR_BLOCKSIZE * (entry.size / TAR_BLOCKSIZE) + (entry.size % TAR_BLOCKSIZE > 0 ? TAR_BLOCKSIZE : 0);
}
switch(entry.type){
case TAR_FILE:
vfs_create(vfs_root(), entry.name, entry.mode);
break;
case TAR_DIR:
vfs_mkdir(vfs_root(), entry.name, entry.mode);
break;
default:
_panic("Unsupported file type in initrd!", 0);
}
if(entry.type != TAR_FILE) continue;
vnode_t *node;
vfs_open(&node, vfs_root(), entry.name);
vfs_write(&node, datastart, entry.size, 0);
vfs_close(&node);
}
}