*
* @(#)bpf.h 7.1 (Berkeley) 5/7/91
*
- * @(#) $Header: /tcpdump/master/libpcap/bpf/net/Attic/bpf.h,v 1.67 2003-01-23 07:24:53 guy Exp $ (LBL)
+ * @(#) $Header: /tcpdump/master/libpcap/pcap-bpf.h,v 1.1 2003-02-11 01:46:06 guy Exp $ (LBL)
+ */
+
+/*
+ * This is libpcap's cut-down version of bpf.h; it includes only
+ * the stuff needed for the code generator and the userland BPF
+ * interpreter, and the libpcap APIs for setting filters, etc..
+ *
+ * "pcap-bpf.c" will include the native OS version, as it deals with
+ * the OS's BPF implementation.
+ *
+ * XXX - should this all just be moved to "pcap.h"?
*/
#ifndef BPF_MAJOR_VERSION
#define BPF_MINBUFSIZE 32
/*
- * Structure for BIOCSETF.
+ * Structure for "pcap_compile()", "pcap_setfilter()", etc..
*/
struct bpf_program {
u_int bf_len;
struct bpf_insn *bf_insns;
};
-/*
- * Struct returned by BIOCGSTATS.
- */
-struct bpf_stat {
- u_int bs_recv; /* number of packets received */
- u_int bs_drop; /* number of packets dropped */
-};
-
/*
* Struct return by BIOCVERSION. This represents the version number of
* the filter language described by the instruction encodings below.
#define BPF_MAJOR_VERSION 1
#define BPF_MINOR_VERSION 1
-/*
- * BPF ioctls
- *
- * The first set is for compatibility with Sun's pcc style
- * header files. If your using gcc, we assume that you
- * have run fixincludes so the latter set should work.
- */
-#if (defined(sun) || defined(ibm032)) && !defined(__GNUC__)
-#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 BIOCPROMISC _IO(B,105)
-#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)
-#define BIOCSTCPF _IOW(B,114, struct bpf_program)
-#define BIOCSUDPF _IOW(B,115, struct bpf_program)
-#else
-#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 BIOCPROMISC _IO('B',105)
-#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)
-#define BIOCSTCPF _IOW('B',114, struct bpf_program)
-#define BIOCSUDPF _IOW('B',115, struct bpf_program)
-#endif
-
-/*
- * Structure prepended to each packet.
- */
-struct bpf_hdr {
- struct timeval bh_tstamp; /* time stamp */
- bpf_u_int32 bh_caplen; /* length of captured portion */
- bpf_u_int32 bh_datalen; /* original length of packet */
- u_short bh_hdrlen; /* length of bpf header (this struct
- plus alignment padding) */
-};
-/*
- * Because the structure above is not a multiple of 4 bytes, some compilers
- * will insist on inserting padding; hence, sizeof(struct bpf_hdr) won't work.
- * Only the kernel needs to know about it; applications use bh_hdrlen.
- */
-#if defined(KERNEL) || defined(_KERNEL)
-#define SIZEOF_BPF_HDR 18
-#endif
-
/*
* Data-link level type codes.
*/
#define BPF_STMT(code, k) { (u_short)(code), 0, 0, k }
#define BPF_JUMP(code, k, jt, jf) { (u_short)(code), jt, jf, k }
-#if defined(BSD) && (defined(KERNEL) || defined(_KERNEL))
-/*
- * Systems based on non-BSD kernels don't have ifnet's (or they don't mean
- * anything if it is in <net/if.h>) and won't work like this.
- */
-# if __STDC__
-extern void bpf_tap(struct ifnet *, u_char *, u_int);
-extern void bpf_mtap(struct ifnet *, struct mbuf *);
-extern void bpfattach(struct ifnet *, u_int, u_int);
-extern void bpfilterattach(int);
-# else
-extern void bpf_tap();
-extern void bpf_mtap();
-extern void bpfattach();
-extern void bpfilterattach();
-# endif /* __STDC__ */
-#endif /* BSD && (_KERNEL || KERNEL) */
#if __STDC__ || defined(__cplusplus)
extern int bpf_validate(struct bpf_insn *, int);
extern u_int bpf_filter(struct bpf_insn *, u_char *, u_int, u_int);