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|
/*
* netsniff-ng - the packet sniffing beast
* Copyright 2009-2012 Daniel Borkmann.
* Parts taken from the Linux kernel, GPL, version 2.
* Subject to the GPL, version 2.
*/
#ifndef BUILT_IN_H
#define BUILT_IN_H
#include <linux/if_packet.h>
#include <assert.h>
#include <endian.h>
#include <byteswap.h>
#include <asm/byteorder.h>
#include <stdint.h>
typedef uint64_t u64;
typedef uint32_t u32;
typedef uint16_t u16;
typedef uint8_t u8;
#ifndef CO_CACHE_LINE_SIZE
# define CO_CACHE_LINE_SIZE (1 << CO_IN_CACHE_SHIFT)
#endif
#ifndef __aligned_16
# define __aligned_16 __attribute__((aligned(16)))
#endif
#ifndef __cacheline_aligned
# define __cacheline_aligned __attribute__((aligned(CO_CACHE_LINE_SIZE)))
#endif
#ifndef __aligned_tpacket
# define __aligned_tpacket __attribute__((aligned(TPACKET_ALIGNMENT)))
#endif
#ifndef __align_tpacket
# define __align_tpacket(x) __attribute__((aligned(TPACKET_ALIGN(x))))
#endif
#ifndef __check_format_printf
# define __check_format_printf(pos_fmtstr, pos_fmtargs) \
__attribute__ ((format (printf, (pos_fmtstr), (pos_fmtargs))))
#endif
#ifndef __packed
# define __packed __attribute__((packed))
#endif
#ifndef round_up
# define round_up(x, alignment) (((x) + (alignment) - 1) & ~((alignment) - 1))
#endif
#ifndef round_up_cacheline
# define round_up_cacheline(x) round_up((x), CO_CACHE_LINE_SIZE)
#endif
#ifndef likely
# define likely(x) __builtin_expect(!!(x), 1)
#endif
#ifndef unlikely
# define unlikely(x) __builtin_expect(!!(x), 0)
#endif
#ifndef constant
# define constant(x) __builtin_constant_p(x)
#endif
#ifndef fmemset
# define fmemset __builtin_memset
#endif
#ifndef fmemcpy
# define fmemcpy __builtin_memcpy
#endif
#ifndef __maybe_unused
# define __maybe_unused __attribute__ ((__unused__))
#endif
#ifndef noinline
# define noinline __attribute__((noinline))
#endif
#ifndef __noreturn
# define __noreturn __attribute__((noreturn))
#endif
#ifndef __hidden
# define __hidden __attribute__((visibility("hidden")))
#endif
#ifndef __pure
# define __pure __attribute__ ((pure))
#endif
#ifndef __force
# define __force /* unimplemented */
#endif
#ifndef force_cast
# define force_cast(type, arg) ((type) (arg))
#endif
#ifndef max
# define max(a, b) \
({ \
typeof (a) _a = (a); \
typeof (b) _b = (b); \
_a > _b ? _a : _b; \
})
#endif /* max */
#ifndef min
# define min(a, b) \
({ \
typeof (a) _a = (a); \
typeof (b) _b = (b); \
_a < _b ? _a : _b; \
})
#endif /* min */
#ifndef ispow2
# define ispow2(x) ({ !!((x) && !((x) & ((x) - 1))); })
#endif
#ifndef offsetof
# define offsetof(type, member) ((size_t) &((type *) 0)->member)
#endif
#ifndef container_of
# define container_of(ptr, type, member) \
({ \
const typeof(((type *) 0)->member) * __mptr = (ptr); \
(type *) ((char *) __mptr - offsetof(type, member)); \
})
#endif
#ifndef array_size
# define array_size(x) (sizeof(x) / sizeof((x)[0]) + __must_be_array(x))
#endif
#ifndef __must_be_array
# define __must_be_array(x) \
build_bug_on_zero(__builtin_types_compatible_p(typeof(x), \
typeof(&x[0])))
#endif
#ifndef build_bug_on_zero
# define build_bug_on_zero(e) (sizeof(char[1 - 2 * !!(e)]) - 1)
#endif
#ifndef bug_on
# define bug_on(cond) assert(!(cond))
#endif
#ifndef bug
# define bug() assert(0)
#endif
#define PAGE_SIZE (getpagesize())
#define PAGE_MASK (~(PAGE_SIZE - 1))
#define PAGE_ALIGN(addr) (((addr) + PAGE_SIZE - 1) & PAGE_MASK)
#if __BYTE_ORDER == __LITTLE_ENDIAN
static inline uint64_t htonll(uint64_t x)
{
return bswap_64(x);
}
static inline uint64_t ntohll(uint64_t x)
{
return bswap_64(x);
}
#elif __BYTE_ORDER == __BIG_ENDIAN
static inline uint64_t htonll(uint64_t x)
{
return x;
}
static inline uint64_t ntohll(uint64_t x)
{
return x;
}
#else
# error __BYTE_ORDER is neither __LITTLE_ENDIAN nor __BIG_ENDIAN
#endif
#ifndef ___constant_swab16
# define ___constant_swab16(x) ((__u16)( \
(((__u16)(x) & (__u16)0x00ffU) << 8) | \
(((__u16)(x) & (__u16)0xff00U) >> 8)))
#endif
#ifndef ___constant_swab32
# define ___constant_swab32(x) ((__u32)( \
(((__u32)(x) & (__u32)0x000000ffUL) << 24) | \
(((__u32)(x) & (__u32)0x0000ff00UL) << 8) | \
(((__u32)(x) & (__u32)0x00ff0000UL) >> 8) | \
(((__u32)(x) & (__u32)0xff000000UL) >> 24)))
#endif
#if __BYTE_ORDER == __LITTLE_ENDIAN
static inline u16 cpu_to_be16(u16 val)
{
return bswap_16(val);
}
static inline u32 cpu_to_be32(u32 val)
{
return bswap_32(val);
}
static inline u64 cpu_to_be64(u64 val)
{
return bswap_64(val);
}
static inline u16 cpu_to_le16(u16 val)
{
return val;
}
static inline u32 cpu_to_le32(u32 val)
{
return val;
}
static inline u64 cpu_to_le64(u64 val)
{
return val;
}
# ifndef __constant_htonl
# define __constant_htonl(x) ((__force __be32)___constant_swab32((x)))
# endif
# ifndef __constant_ntohl
# define __constant_ntohl(x) ___constant_swab32((__force __be32)(x))
# endif
# ifndef __constant_htons
# define __constant_htons(x) ((__force __be16)___constant_swab16((x)))
# endif
# ifndef __constant_ntohs
# define __constant_ntohs(x) ___constant_swab16((__force __be16)(x))
# endif
#elif __BYTE_ORDER == __BIG_ENDIAN
static inline u16 cpu_to_be16(u16 val)
{
return val;
}
static inline u32 cpu_to_be32(u32 val)
{
return val;
}
static inline u64 cpu_to_be64(u64 val)
{
return val;
}
static inline u16 cpu_to_le16(u16 val)
{
return bswap_16(val);
}
static inline u32 cpu_to_le32(u32 val)
{
return bswap_32(val);
}
static inline u64 cpu_to_le64(u64 val)
{
return bswap_64(val);
}
# ifndef __constant_htonl
# define __constant_htonl(x) ((__force __be32)(__u32)(x))
# endif
# ifndef __constant_ntohl
# define __constant_ntohl(x) ((__force __u32)(__be32)(x))
# endif
# ifndef __constant_htons
# define __constant_htons(x) ((__force __be16)(__u16)(x))
# endif
# ifndef __constant_ntohs
# define __constant_ntohs(x) ((__force __u16)(__be16)(x))
# endif
#else
# error __BYTE_ORDER is neither __LITTLE_ENDIAN nor __BIG_ENDIAN
#endif
#define le64_to_cpu cpu_to_le64
#define le32_to_cpu cpu_to_le32
#define le16_to_cpu cpu_to_le16
#define be64_to_cpu cpu_to_be64
#define be32_to_cpu cpu_to_be32
#define be16_to_cpu cpu_to_be16
#undef memset
#undef memcpy
#define memset fmemset
#define memcpy fmemcpy
#if defined(__amd64__) || defined(__x86_64__) || defined(__AMD64__) || \
defined(_M_X64) || defined(__amd64)
# define CO_IN_CACHE_SHIFT 7
#elif defined(__i386__) || defined(__x86__) || defined(__X86__) || \
defined(_M_IX86) || defined(__i386)
# define CO_IN_CACHE_SHIFT 7
#elif defined(__ia64__) || defined(__IA64__) || defined(__M_IA64)
# define CO_IN_CACHE_SHIFT 6
#elif defined(__SPU__)
# define CO_IN_CACHE_SHIFT 7
#elif defined(__powerpc64__) || defined(__ppc64__) || defined(__PPC64__) || \
defined(_ARCH_PPC64)
# define CO_IN_CACHE_SHIFT 8
#elif defined(__powerpc__) || defined(__ppc__) || defined(__PPC__) || \
defined(_ARCH_PPC)
# define CO_IN_CACHE_SHIFT 7
#elif defined(__sparcv9__) || defined(__sparcv9)
# define CO_IN_CACHE_SHIFT 6
#elif defined(__sparc_v8__)
# define CO_IN_CACHE_SHIFT 5
#elif defined(__sparc__) || defined(__sparc)
# define CO_IN_CACHE_SHIFT 5
#elif defined(__ARM_EABI__)
# define CO_IN_CACHE_SHIFT 5
#elif defined(__arm__)
# define CO_IN_CACHE_SHIFT 5
#elif defined(__mips__) || defined(__mips) || defined(__MIPS__)
# if defined(_ABIO32)
# define CO_IN_CACHE_SHIFT 5
# elif defined(_ABIN32)
# define CO_IN_CACHE_SHIFT 5
# else
# define CO_IN_CACHE_SHIFT 6
# endif
#else
# define CO_IN_CACHE_SHIFT 5
#endif
#ifndef TP_STATUS_TS_SOFTWARE
# define TP_STATUS_TS_SOFTWARE (1 << 29)
#endif
#ifndef TP_STATUS_TS_SYS_HARDWARE
# define TP_STATUS_TS_SYS_HARDWARE (1 << 30)
#endif
#ifndef TP_STATUS_TS_RAW_HARDWARE
# define TP_STATUS_TS_RAW_HARDWARE (1 << 31)
#endif
#ifndef POLLRDNORM
# define POLLRDNORM 0x0040
#endif
#ifndef POLLWRNORM
# define POLLWRNORM 0x0100
#endif
#ifndef POLLRDHUP
# define POLLRDHUP 0x2000
#endif
#endif /* BUILT_IN_H */
|
