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path: root/trafgen_conf.h
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#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,
	CSUM_UDP6,
	CSUM_TCP6,
};

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

#endif /* TRAFGEN_CONF */
h=nds-private-remove&id=052662cada1f2104dedfab68866e403a508e045c'>052662cada1f2104dedfab68866e403a508e045c (diff)
lkdtm: Do not use flush_icache_range() on user addresses
The flush_icache_range() API is meant to be used on kernel addresses only as it may not have the infrastructure (exception entries) to handle user memory faults. The lkdtm execute_user_location() function tests the kernel execution of user space addresses by mmap'ing an anonymous page, copying some code together with cache maintenance and attempting to run it. However, the cache maintenance step may fail because of the incorrect API usage described above. The patch changes lkdtm to use access_process_vm() for copying the code into user space which would take care of the necessary cache maintenance. Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> [kees: export access_process_vm() for module use] Signed-off-by: Kees Cook <keescook@chromium.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch/sh')