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/*
 * netsniff-ng - the packet sniffing beast
 * Copyright (C) 2009, 2010 Daniel Borkmann
 * Copyright (C) 2012 Christoph Jaeger <christoph@netsniff-ng.org>
 * Subject to the GPL, version 2.
 */

#ifndef PROTO_H
#define PROTO_H

#include <ctype.h>
#include <stdint.h>

#include "tprintf.h"

struct pkt_buff;

struct protocol {
	/* Needs to be filled out by user */
	const unsigned int key;
	void (*print_full)(struct pkt_buff *pkt);
	void (*print_less)(struct pkt_buff *pkt);
	/* Used by program logic */
	struct protocol *next;
	void (*process)   (struct pkt_buff *pkt);
};

extern void empty(struct pkt_buff *pkt);
extern void _hex(uint8_t *ptr, size_t len);
extern void hex(struct pkt_buff *pkt);
extern void _ascii(uint8_t *ptr, size_t len);
extern void ascii(struct pkt_buff *pkt);
extern void hex_ascii(struct pkt_buff *pkt);

#endif /* PROTO_H */
_init() we did not set xcomp_bv to reflect the XSAVES format since at the time there is no valid data. However, after we do copy_init_fpstate_to_fpregs() in fpu__clear(), as in commit: b22cbe404a9c x86/fpu: Fix invalid FPU ptrace state after execve() and when __fpu_restore_sig() does fpu__restore() for a COMPAT-mode app, a #GP occurs. This can be easily triggered by doing valgrind on a COMPAT-mode "Hello World," as reported by Joakim Tjernlund and others: https://bugzilla.kernel.org/show_bug.cgi?id=190061 Fix it by setting xcomp_bv correctly. This patch also moves the xcomp_bv initialization to the proper place, which was in copyin_to_xsaves() as of: 4c833368f0bf x86/fpu: Set the xcomp_bv when we fake up a XSAVES area which fixed the bug too, but it's more efficient and cleaner to initialize things once per boot, not for every signal handling operation. Reported-by: Kevin Hao <haokexin@gmail.com> Reported-by: Joakim Tjernlund <Joakim.Tjernlund@infinera.com> Signed-off-by: Yu-cheng Yu <yu-cheng.yu@intel.com> Cc: Andy Lutomirski <luto@kernel.org> Cc: Borislav Petkov <bp@suse.de> Cc: Dave Hansen <dave.hansen@linux.intel.com> Cc: Fenghua Yu <fenghua.yu@intel.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ravi V. Shankar <ravi.v.shankar@intel.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: haokexin@gmail.com Link: http://lkml.kernel.org/r/1485212084-4418-1-git-send-email-yu-cheng.yu@intel.com [ Combined it with 4c833368f0bf. ] Signed-off-by: Ingo Molnar <mingo@kernel.org>
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