EFI_STATUS readFile(
IN EFI_FILE *dir,
IN INT32 index,
IN EFI_SYSTEM_TABLE *systab,
IN VOID *buf
)
{
EFI_STATUS status;
EFI_FILE *file;
CHAR16 filename[10]; // Allow up to 9999 stories (Probably going to have to increase buffer size when this engine gets super popular :)
INT32 index
tostring(index, filename);
Status=dir->Open(dir, &file, filename, EFI_FILE_MODE_READ, EFI_FILE_READ_ONLY); // open the file
EFI_FILE_INFO *fileinfo;
UINTN infosize = SIZE_OF_EFI_FILE_INFO;
EFI_GUID info_type = EFI_FILE_INFO_ID;
status = file->GetInfo(file, &info_type, &infosize, NULL); // get the info size of file
systab->BootServices->AllocatePool(AllocateAnyPages, infosize, (VOID **)&fileinfo);
status=file->GetInfo(file, &info_type, &infosize, fileinfo); // get info of file
UINTN filesize = fileinfo->FileSize; // get filesize from info
systab->BootServices->AllocatePool(AllocateAnyPages, filesize, (VOID **)&buf); // Allocate some room
status=file->Read(file, &filesize, buf);
systab->BootServices->FreePool(buf);
systab->BootServices->FreePool(fileinfo);
return EFI_SUCCESS;
}
static int
efifs_stat(struct open_file *f, struct stat *sb)
{
EFI_FILE *file = f->f_fsdata;
union fileinfo fi;
EFI_STATUS status;
UINTN sz;
if (file == NULL)
return (EBADF);
bzero(sb, sizeof(*sb));
sz = sizeof(fi);
status = file->GetInfo(file, &fi_guid, &sz, &fi);
if (EFI_ERROR(status))
return (efi_status_to_errno(status));
sb->st_mode = S_IRUSR | S_IRGRP | S_IROTH;
if ((fi.info.Attribute & EFI_FILE_READ_ONLY) == 0)
sb->st_mode |= S_IWUSR | S_IWGRP | S_IWOTH;
if (fi.info.Attribute & EFI_FILE_DIRECTORY)
sb->st_mode |= S_IFDIR;
else
sb->st_mode |= S_IFREG;
sb->st_nlink = 1;
sb->st_atime = efi_time(&fi.info.LastAccessTime);
sb->st_mtime = efi_time(&fi.info.ModificationTime);
sb->st_ctime = efi_time(&fi.info.CreateTime);
sb->st_size = fi.info.FileSize;
sb->st_blocks = fi.info.PhysicalSize / S_BLKSIZE;
sb->st_blksize = S_BLKSIZE;
sb->st_birthtime = sb->st_ctime;
return (0);
}
/*
* Print information about disks
*/
static void
efifs_dev_print(int verbose)
{
union {
EFI_FILE_SYSTEM_INFO info;
char buffer[1024];
} fi;
char line[80];
EFI_FILE_IO_INTERFACE *fsif;
EFI_FILE *volume;
EFI_HANDLE h;
EFI_STATUS status;
UINTN sz;
int i, unit;
for (unit = 0, h = efi_find_handle(&efifs_dev, 0);
h != NULL; h = efi_find_handle(&efifs_dev, ++unit)) {
sprintf(line, " %s%d: ", efifs_dev.dv_name, unit);
pager_output(line);
status = BS->HandleProtocol(h, &sfs_guid, (VOID **)&fsif);
if (EFI_ERROR(status))
goto err;
status = fsif->OpenVolume(fsif, &volume);
if (EFI_ERROR(status))
goto err;
sz = sizeof(fi);
status = volume->GetInfo(volume, &fs_guid, &sz, &fi);
volume->Close(volume);
if (EFI_ERROR(status))
goto err;
if (fi.info.ReadOnly)
pager_output("[RO] ");
else
pager_output(" ");
for (i = 0; fi.info.VolumeLabel[i] != 0; i++)
fi.buffer[i] = fi.info.VolumeLabel[i];
fi.buffer[i] = 0;
if (fi.buffer[0] != 0)
pager_output(fi.buffer);
else
pager_output("EFI filesystem");
pager_output("\n");
continue;
err:
sprintf(line, "[--] error %d: unable to obtain information\n",
efi_status_to_errno(status));
pager_output(line);
}
}