| /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ |
| #ifndef __ASM_GENERIC_IPCBUF_H |
| #define __ASM_GENERIC_IPCBUF_H |
| |
| #include <linux/posix_types.h> |
| |
| /* |
| * The generic ipc64_perm structure: |
| * Note extra padding because this structure is passed back and forth |
| * between kernel and user space. |
| * |
| * ipc64_perm was originally meant to be architecture specific, but |
| * everyone just ended up making identical copies without specific |
| * optimizations, so we may just as well all use the same one. |
| * |
| * Pad space is left for: |
| * - 32-bit mode_t on architectures that only had 16 bit |
| * - 32-bit seq |
| * - 2 miscellaneous 32-bit values |
| */ |
| |
| struct ipc64_perm { |
| __kernel_key_t key; |
| __kernel_uid32_t uid; |
| __kernel_gid32_t gid; |
| __kernel_uid32_t cuid; |
| __kernel_gid32_t cgid; |
| __kernel_mode_t mode; |
| /* pad if mode_t is u16: */ |
| unsigned char __pad1[4 - sizeof(__kernel_mode_t)]; |
| unsigned short seq; |
| unsigned short __pad2; |
| __kernel_ulong_t __unused1; |
| __kernel_ulong_t __unused2; |
| }; |
| |
| #endif /* __ASM_GENERIC_IPCBUF_H */ |
