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- #ifndef _NET_BPF_H_
- #define _NET_BPF_H_
-
- #ifndef _SYS_TYPES_H_
- #include <sys/types.h>
- #endif
-
- #ifndef _SYS_IOCCOM_H_
- #include <sys/ioccom.h>
- #endif
-
- #ifndef _SYS_TIME_H_
- #include <sys/time.h>
- #endif
-
-
- #define BPF_ALIGNMENT sizeof(long)
- #define BPF_WORDALIGN(x) (((x)+(BPF_ALIGNMENT-1))&~(BPF_ALIGNMENT-1))
-
- #define BPF_MAXINSNS 512
-
- struct bpf_program {
- u_int bf_len;
- struct bpf_insn *bf_insns;
- };
-
- struct bpf_stat {
- u_int bs_recv;
- u_int bs_drop;
- };
-
- struct bpf_version {
- u_short bv_major;
- u_short bv_minor;
- };
-
- #define BPF_MAJOR_VERSION 1
- #define BPF_MINOR_VERSION 1
-
- #define BIOCGBLEN _IOR('B',102,u_int)
- #define BIOCSBLEN _IOWR('B',102,u_int)
- #define BIOCSETF _IOW('B',103,struct bpf_program)
- #define BIOCFLUSH _IO('B',104)
- #define BIOCGDLT _IOR('B',106,u_int)
- #define BIOCGETIF _IOR('B',107,struct ifreq)
- #define BIOCSETIF _IOW('B',108,struct ifreq)
- #define BIOCSRTIMEOUT _IOW('B',109,struct timeval)
- #define BIOCGRTIMEOUT _IOR('B',110,struct timeval)
- #define BIOCGSTATS _IOR('B',111,struct bpf_stat)
- #define BIOCIMMEDIATE _IOW('B',112,u_int)
- #define BIOCVERSION _IOR('B',113,struct bpf_version)
-
- struct bpf_hdr {
- struct timeval bh_tstamp;
- u_long bh_caplen;
- u_long bh_datalen;
- u_short bh_hdrlen;
- u_short bh_pad;
- };
-
- #define DLT_MIAMI 100
-
- #define BPF_CLASS(code) ((code)&0x07)
- #define BPF_LD 0x00
- #define BPF_LDX 0x01
- #define BPF_ST 0x02
- #define BPF_STX 0x03
- #define BPF_ALU 0x04
- #define BPF_JMP 0x05
- #define BPF_RET 0x06
- #define BPF_MISC 0x07
-
- #define BPF_SIZE(code) ((code)&0x18)
- #define BPF_W 0x00
- #define BPF_H 0x08
- #define BPF_B 0x10
- #define BPF_MODE(code) ((code)&0xe0)
- #define BPF_IMM 0x00
- #define BPF_ABS 0x20
- #define BPF_IND 0x40
- #define BPF_MEM 0x60
- #define BPF_LEN 0x80
- #define BPF_MSH 0xa0
-
- #define BPF_OP(code) ((code)&0xf0)
- #define BPF_ADD 0x00
- #define BPF_SUB 0x10
- #define BPF_MUL 0x20
- #define BPF_DIV 0x30
- #define BPF_OR 0x40
- #define BPF_AND 0x50
- #define BPF_LSH 0x60
- #define BPF_RSH 0x70
- #define BPF_NEG 0x80
- #define BPF_JA 0x00
- #define BPF_JEQ 0x10
- #define BPF_JGT 0x20
- #define BPF_JGE 0x30
- #define BPF_JSET 0x40
- #define BPF_SRC(code) ((code)&0x08)
- #define BPF_K 0x00
- #define BPF_X 0x08
-
- #define BPF_RVAL(code) ((code)&0x18)
- #define BPF_A 0x10
-
- #define BPF_MISCOP(code) ((code)&0xf8)
- #define BPF_TAX 0x00
- #define BPF_TXA 0x80
-
- struct bpf_insn {
- u_short code;
- u_char jt;
- u_char jf;
- long k;
- };
-
- #define BPF_MEMWORDS 16
-
- #endif
-