diff options
Diffstat (limited to 'contrib/libpcap/bpf/net/bpf.h')
-rw-r--r-- | contrib/libpcap/bpf/net/bpf.h | 132 |
1 files changed, 122 insertions, 10 deletions
diff --git a/contrib/libpcap/bpf/net/bpf.h b/contrib/libpcap/bpf/net/bpf.h index c6910b6..c2eba55 100644 --- a/contrib/libpcap/bpf/net/bpf.h +++ b/contrib/libpcap/bpf/net/bpf.h @@ -38,7 +38,7 @@ * @(#)bpf.h 7.1 (Berkeley) 5/7/91 * * $FreeBSD$ - * @(#) $Header: bpf.h,v 1.36 97/06/12 14:29:53 leres Exp $ (LBL) + * @(#) $Header: /tcpdump/master/libpcap/bpf/net/bpf.h,v 1.44 2000/12/21 10:29:24 guy Exp $ (LBL) */ #ifndef BPF_MAJOR_VERSION @@ -151,13 +151,24 @@ struct bpf_hdr { * 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. */ -#ifdef KERNEL +#if defined(KERNEL) || defined(_KERNEL) #define SIZEOF_BPF_HDR 18 #endif /* * Data-link level type codes. */ + +/* + * These are the types that are the same on all platforms; on other + * platforms, a <net/bpf.h> should be supplied that defines the additional + * DLT_* codes appropriately for that platform (the BSDs, for example, + * should not just pick up this version of "bpf.h"; they should also define + * the additional DLT_* codes used by their kernels, as well as the values + * defined here - and, if the values they use for particular DLT_ types + * differ from those here, they should use their values, not the ones + * here). + */ #define DLT_NULL 0 /* no link-layer encapsulation */ #define DLT_EN10MB 1 /* Ethernet (10Mb) */ #define DLT_EN3MB 2 /* Experimental Ethernet (3Mb) */ @@ -169,13 +180,100 @@ struct bpf_hdr { #define DLT_SLIP 8 /* Serial Line IP */ #define DLT_PPP 9 /* Point-to-point Protocol */ #define DLT_FDDI 10 /* FDDI */ + +/* + * These are values from the traditional libpcap "bpf.h". + * Ports of this to particular platforms should replace these definitions + * with the ones appropriate to that platform, if the values are + * different on that platform. + */ #define DLT_ATM_RFC1483 11 /* LLC/SNAP encapsulated atm */ #define DLT_RAW 12 /* raw IP */ -#define DLT_SLIP_BSDOS 13 /* BSD/OS Serial Line IP */ -#define DLT_PPP_BSDOS 14 /* BSD/OS Point-to-point Protocol */ /* - * The instruction encondings. + * These are values from BSD/OS's "bpf.h". + * These are not the same as the values from the traditional libpcap + * "bpf.h"; however, these values shouldn't be generated by any + * OS other than BSD/OS, so the correct values to use here are the + * BSD/OS values. + * + * Platforms that have already assigned these values to other + * DLT_ codes, however, should give these codes the values + * from that platform, so that programs that use these codes will + * continue to compile - even though they won't correctly read + * files of these types. + */ +#define DLT_SLIP_BSDOS 15 /* BSD/OS Serial Line IP */ +#define DLT_PPP_BSDOS 16 /* BSD/OS Point-to-point Protocol */ + +#define DLT_ATM_CLIP 19 /* Linux Classical-IP over ATM */ + +/* + * This value is defined by NetBSD; other platforms should refrain from + * using it for other purposes, so that NetBSD savefiles with a link + * type of 50 can be read as this type on all platforms. + */ +#define DLT_PPP_SERIAL 50 /* PPP over serial with HDLC encapsulation */ + +/* + * This value was defined by libpcap 0.5; platforms that have defined + * it with a different value should define it here with that value - + * a link type of 104 in a save file will be mapped to DLT_C_HDLC, + * whatever value that happens to be, so programs will correctly + * handle files with that link type regardless of the value of + * DLT_C_HDLC. + * + * The name DLT_C_HDLC was used by BSD/OS; we use that name for source + * compatibility with programs written for BSD/OS. + * + * libpcap 0.5 defined it as DLT_CHDLC; we define DLT_CHDLC as well, + * for source compatibility with programs written for libpcap 0.5. + */ +#define DLT_C_HDLC 104 /* Cisco HDLC */ +#define DLT_CHDLC DLT_C_HDLC + +/* + * Reserved for future use. + * Do not pick other numerical value for these unless you have also + * picked up the tcpdump.org top-of-CVS-tree version of "savefile.c", + * which will arrange that capture files for these DLT_ types have + * the same "network" value on all platforms, regardless of what + * value is chosen for their DLT_ type (thus allowing captures made + * on one platform to be read on other platforms, even if the two + * platforms don't use the same numerical values for all DLT_ types). + */ +#define DLT_IEEE802_11 105 /* IEEE 802.11 wireless */ + +/* + * Values between 106 and 107 are used in capture file headers as + * link-layer types corresponding to DLT_ types that might differ + * between platforms; don't use those values for new DLT_ new types. + */ + +/* + * OpenBSD DLT_LOOP, for loopback devices; it's like DLT_NULL, except + * that the AF_ type in the link-layer header is in network byte order. + * + * OpenBSD defines it as 12, but that collides with DLT_RAW, so we + * define it as 108 here. If OpenBSD picks up this file, it should + * define DLT_LOOP as 12 in its version, as per the comment above - + * and should not use 108 for any purpose. + */ +#define DLT_LOOP 108 + +/* + * Values between 109 and 112 are used in capture file headers as + * link-layer types corresponding to DLT_ types that might differ + * between platforms; don't use those values for new DLT_ new types. + */ + +/* + * This is for Linux cooked sockets. + */ +#define DLT_LINUX_SLL 113 + +/* + * The instruction encodings. */ /* instruction classes */ #define BPF_CLASS(code) ((code) & 0x07) @@ -246,15 +344,29 @@ struct bpf_insn { #define BPF_STMT(code, k) { (u_short)(code), 0, 0, k } #define BPF_JUMP(code, k, jt, jf) { (u_short)(code), jt, jf, k } -#ifdef KERNEL -extern u_int bpf_filter(); -extern void bpfattach(); +#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(); -#else +extern void bpfattach(); +extern void bpfilterattach(); +# endif /* __STDC__ */ +#endif /* BSD && (_KERNEL || KERNEL) */ #if __STDC__ +extern int bpf_validate(struct bpf_insn *, int); extern u_int bpf_filter(struct bpf_insn *, u_char *, u_int, u_int); -#endif +#else +extern int bpf_validate(); +extern u_int bpf_filter(); #endif /* |