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2a709f28fa
* 0day explit mitigation * Memory corruption prevention * Privilege escalation prevention * Buffer over flow prevention * File System corruption defense * Thread escape prevention This may very well be the most intensive inclusion to BrooklynR. This will not be part of an x86 suite nor it will be released as tool kit. The security core toolkit will remain part of kernel base.
80 lines
2.1 KiB
C
80 lines
2.1 KiB
C
/*
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* include/linux/eventpoll.h ( Efficient event polling implementation )
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* Copyright (C) 2001,...,2006 Davide Libenzi
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* Davide Libenzi <davidel@xmailserver.org>
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*
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*/
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#ifndef _UAPI_LINUX_EVENTPOLL_H
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#define _UAPI_LINUX_EVENTPOLL_H
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/* For O_CLOEXEC */
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#include <linux/fcntl.h>
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#include <linux/types.h>
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/* Flags for epoll_create1. */
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#define EPOLL_CLOEXEC O_CLOEXEC
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/* Valid opcodes to issue to sys_epoll_ctl() */
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#define EPOLL_CTL_ADD 1
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#define EPOLL_CTL_DEL 2
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#define EPOLL_CTL_MOD 3
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/* Set exclusive wakeup mode for the target file descriptor */
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#define EPOLLEXCLUSIVE (1 << 28)
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/*
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* Request the handling of system wakeup events so as to prevent system suspends
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* from happening while those events are being processed.
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*
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* Assuming neither EPOLLET nor EPOLLONESHOT is set, system suspends will not be
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* re-allowed until epoll_wait is called again after consuming the wakeup
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* event(s).
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*
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* Requires CAP_BLOCK_SUSPEND
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*/
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#define EPOLLWAKEUP (1 << 29)
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/* Set the One Shot behaviour for the target file descriptor */
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#define EPOLLONESHOT (1 << 30)
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/* Set the Edge Triggered behaviour for the target file descriptor */
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#define EPOLLET (1 << 31)
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/*
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* On x86-64 make the 64bit structure have the same alignment as the
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* 32bit structure. This makes 32bit emulation easier.
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*
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* UML/x86_64 needs the same packing as x86_64
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*/
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#ifdef __x86_64__
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#define EPOLL_PACKED __attribute__((packed))
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#else
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#define EPOLL_PACKED
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#endif
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struct epoll_event {
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__u32 events;
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__u64 data;
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} EPOLL_PACKED;
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#ifdef CONFIG_PM_SLEEP
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static inline void ep_take_care_of_epollwakeup(struct epoll_event *epev)
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{
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if ((epev->events & EPOLLWAKEUP) && !capable(CAP_BLOCK_SUSPEND))
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epev->events &= ~EPOLLWAKEUP;
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}
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#else
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static inline void ep_take_care_of_epollwakeup(struct epoll_event *epev)
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{
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epev->events &= ~EPOLLWAKEUP;
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}
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#endif
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#endif /* _UAPI_LINUX_EVENTPOLL_H */
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