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