Systemd/src/boot/efi/util.h
Zbigniew Jędrzejewski-Szmek 7a2cb0228c boot: avoid 32-bit calculation for a 64-bit lvalue
Coverity CID#1399116:
> Potentially overflowing expression
> gpt_header_buffer.gpt_header.SizeOfPartitionEntry * gpt_header_buffer.gpt_header.NumberOfPartitionEntries
> with type unsigned int (32 bits, unsigned) is evaluated using 32-bit
> arithmetic, and then used in a context that expects an expression of type
> UINTN (64 bits, unsigned).

Let's import the ALIGN_TO macro to sd-boot and use it to avoid the issue.
2019-03-12 13:32:45 +01:00

69 lines
2 KiB
C

/* SPDX-License-Identifier: LGPL-2.1+ */
#pragma once
#include <efi.h>
#include <efilib.h>
#define ELEMENTSOF(x) (sizeof(x)/sizeof((x)[0]))
#define OFFSETOF(x,y) __builtin_offsetof(x,y)
static inline UINTN ALIGN_TO(UINTN l, UINTN ali) {
return ((l + ali - 1) & ~(ali - 1));
}
static inline const CHAR16 *yes_no(BOOLEAN b) {
return b ? L"yes" : L"no";
}
EFI_STATUS parse_boolean(const CHAR8 *v, BOOLEAN *b);
UINT64 ticks_read(void);
UINT64 ticks_freq(void);
UINT64 time_usec(void);
EFI_STATUS efivar_set(const CHAR16 *name, const CHAR16 *value, BOOLEAN persistent);
EFI_STATUS efivar_set_raw(const EFI_GUID *vendor, const CHAR16 *name, const VOID *buf, UINTN size, BOOLEAN persistent);
EFI_STATUS efivar_set_int(CHAR16 *name, UINTN i, BOOLEAN persistent);
VOID efivar_set_time_usec(CHAR16 *name, UINT64 usec);
EFI_STATUS efivar_get(const CHAR16 *name, CHAR16 **value);
EFI_STATUS efivar_get_raw(const EFI_GUID *vendor, const CHAR16 *name, CHAR8 **buffer, UINTN *size);
EFI_STATUS efivar_get_int(const CHAR16 *name, UINTN *i);
CHAR8 *strchra(CHAR8 *s, CHAR8 c);
CHAR16 *stra_to_path(CHAR8 *stra);
CHAR16 *stra_to_str(CHAR8 *stra);
EFI_STATUS file_read(EFI_FILE_HANDLE dir, const CHAR16 *name, UINTN off, UINTN size, CHAR8 **content, UINTN *content_size);
static inline void FreePoolp(void *p) {
void *q = *(void**) p;
if (!q)
return;
FreePool(q);
}
#define _cleanup_(x) __attribute__((__cleanup__(x)))
#define _cleanup_freepool_ _cleanup_(FreePoolp)
static inline void FileHandleClosep(EFI_FILE_HANDLE *handle) {
if (!*handle)
return;
uefi_call_wrapper((*handle)->Close, 1, *handle);
}
const EFI_GUID loader_guid;
#define UINTN_MAX (~(UINTN)0)
#define INTN_MAX ((INTN)(UINTN_MAX>>1))
#define TAKE_PTR(ptr) \
({ \
typeof(ptr) _ptr_ = (ptr); \
(ptr) = NULL; \
_ptr_; \
})