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path: root/trafgen_conf.h
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/*
 * netsniff-ng - the packet sniffing beast
 * Copyright 2009, 2010 Daniel Borkmann.
 * Subject to the GPL, version 2.
 */

#ifndef TRAFGEN_CONF
#define TRAFGEN_CONF

#include <stdint.h>
#include <stdio.h>
#include <sys/types.h>

#define TYPE_INC	0
#define TYPE_DEC	1

enum csum {
	CSUM_IP,
	CSUM_UDP,
	CSUM_TCP,
};

struct counter {
	int type;
	uint8_t min, max, inc, val;
	off_t off;
};

struct randomizer {
	off_t off;
};

struct csum16 {
	off_t off, from, to;
	enum csum which;
};

struct packet {
	uint8_t *payload;
	size_t len;
};

struct packet_dyn {
	struct counter *cnt;
	size_t clen;
	struct randomizer *rnd;
	size_t rlen;
	struct csum16 *csum;
	size_t slen;
};

extern int compile_packets(char *file, int verbose, int cpu, bool invoke_cpp);
extern void cleanup_packets(void);

#endif /* TRAFGEN_CONF */
d2=0c744ea4f77d72b3dcebb7a8f2684633ec79be88'>diff)
tracing: Fix hwlat kthread migration
The hwlat tracer creates a kernel thread at start of the tracer. It is pinned to a single CPU and will move to the next CPU after each period of running. If the user modifies the migration thread's affinity, it will not change after that happens. The original code created the thread at the first instance it was called, but later was changed to destroy the thread after the tracer was finished, and would not be created until the next instance of the tracer was established. The code that initialized the affinity was only called on the initial instantiation of the tracer. After that, it was not initialized, and the previous affinity did not match the current newly created one, making it appear that the user modified the thread's affinity when it did not, and the thread failed to migrate again. Cc: stable@vger.kernel.org Fixes: 0330f7aa8ee6 ("tracing: Have hwlat trace migrate across tracing_cpumask CPUs") Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Diffstat (limited to 'security/tomoyo/file.c')