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#include "initrd.h"
#include "init.h"
#include "jove.h"
#include "lib/printf.h"
#include "lib/tar.h"
#include "hal/obj.h"
#include "hal/memory.h"
extern uintptr_t _initrd_module;
PAGEALIGN jove_objdir_t s_initrd_objdir = { 0 };
#define CHECK_IF_INITRD(obj) \
if(obj_gettype(obj) != JOVE_OBJ_INITRD_FILE) { \
reterr(EBADOBJ); \
}
int
initrd_file_name(jove_owned_obj_t *obj, const char **nameptr)
{
CHECK_IF_INITRD(obj);
struct tar_header *file = obj_deref(obj);
*nameptr = tar_filename(file);
return 0;
}
int
initrd_file_size(jove_owned_obj_t *obj, size_t *sizeptr)
{
CHECK_IF_INITRD(obj);
struct tar_header *file = obj_deref(obj);
*sizeptr = tar_filesize(file);
return 0;
}
int
initrd_file_data(jove_owned_obj_t *obj, uintptr_t *dataptr)
{
CHECK_IF_INITRD(obj);
union tar_block *file = obj_deref(obj);
*dataptr = (uintptr_t)&file[1];
return 0;
}
void initrd_setup(void)
{
kprintf("Loading initrd from bootloader:\n");
{
jove_owned_obj_t *initrd_objdir_obj = obj_take(objdir_getlocal(_rootdir_obj, ROOTDIR_INITRD_I));
obj_settype(initrd_objdir_obj, JOVE_OBJ_OBJDIR);
obj_setvalue(initrd_objdir_obj, (uintmax_t)&s_initrd_objdir);
size_t initrd_files = 0;
union tar_block *block = phys_tovirt(_initrd_module);
for(;;) {
struct tar_header *header = &block->header;
if(*header->filename == 0) break;
size_t file_size = tar_filesize(header);
kprintf("File: %s, Size: %i\n", tar_filename(header), file_size);
{
jove_owned_obj_t *initrd_file_obj = obj_take(objdir_getlocal(initrd_objdir_obj, initrd_files++));
obj_settype(initrd_file_obj, JOVE_OBJ_INITRD_FILE);
obj_setvalue(initrd_file_obj, (uintmax_t)block);
obj_release(initrd_file_obj);
}
block = &block[((file_size + 511) / 512) + 1];
}
obj_release(initrd_objdir_obj);
}
}
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