| 1 |
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| 2 | #ifndef __ASM_GENERIC_IPCBUF_H
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| 3 | #define __ASM_GENERIC_IPCBUF_H
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| 4 |
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| 5 | #include <linux/posix_types.h>
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| 6 |
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| 7 | |
| 8 | * The generic ipc64_perm structure:
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| 9 | * Note extra padding because this structure is passed back and forth
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| 10 | * between kernel and user space.
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| 11 | *
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| 12 | * ipc64_perm was originally meant to be architecture specific, but
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| 13 | * everyone just ended up making identical copies without specific
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| 14 | * optimizations, so we may just as well all use the same one.
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| 15 | *
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| 16 | * Pad space is left for:
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| 17 | * - 32-bit mode_t on architectures that only had 16 bit
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| 18 | * - 32-bit seq
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| 19 | * - 2 miscellaneous 32-bit values
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| 20 |
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| 21 |
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| 22 | struct ipc64_perm {
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| 23 | __kernel_key_t key;
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| 24 | __kernel_uid32_t uid;
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| 25 | __kernel_gid32_t gid;
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| 26 | __kernel_uid32_t cuid;
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| 27 | __kernel_gid32_t cgid;
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| 28 | __kernel_mode_t mode;
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| 29 |
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| 30 | unsigned char __pad1[4 - sizeof(__kernel_mode_t)];
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| 31 | unsigned short seq;
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| 32 | unsigned short __pad2;
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| 33 | __kernel_ulong_t __unused1;
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| 34 | __kernel_ulong_t __unused2;
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| 35 | };
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| 36 |
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| 37 | #endif
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