libnet-functions.h

tcp数据流重放工具

 */
libnet_ptag_t           /* packet id on success, -1 on failure */
libnet_build_ospfv2_lsa_rtr(
    u_int16_t,            /* flags */
    u_int16_t,            /* number */
    u_int,              /* id */
    u_int,              /* data */
    u_int8_t,             /* type */
    u_int8_t,             /* type of service */
    u_int16_t,            /* metric */
    u_int8_t *,           /* pointer to packet data (or NULL) */
    u_int32_t,             /* payload length */
    libnet_t *,         /* libnet context pointer */
    libnet_ptag_t       /* packet id */
    );
 
 
/*
 *  libnet_build_ospfv2_lsa_net
 *
 *  Function builds an OSPF lsa net header.
 */
libnet_ptag_t           /* packet id on success, -1 on failure */
libnet_build_ospfv2_lsa_net(
    u_int32_t,             /* netmask */
    u_int,              /* router id */
    u_int8_t *,           /* pointer to packet data (or NULL) */
    u_int32_t,             /* payload length */
    libnet_t *,         /* libnet context pointer */
    libnet_ptag_t       /* packet id */
    );
 
 
/*
 *  libnet_build_ospfv2_lsa_sum
 *
 *  Function builds an OSPF lsa sum header.
 */
libnet_ptag_t           /* packet id on success, -1 on failure */
libnet_build_ospfv2_lsa_sum(
    u_int32_t,             /* netmask */
    u_int,              /* metric */
    u_int,              /* type of service */
    u_int8_t *,           /* pointer to packet data (or NULL) */
    u_int32_t,             /* payload length */
    libnet_t *,         /* libnet context pointer */
    libnet_ptag_t       /* packet id */
    );
 
 
/*
 *  libnet_build_ospfv2_lsa_as
 *
 *  Function builds an OSPF lsa as header.
 */
libnet_ptag_t           /* packet id on success, -1 on failure */
libnet_build_ospfv2_lsa_as(
    u_int32_t,             /* netmask */
    u_int,              /* metric */
    u_int32_t,             /* forward address */
    u_int,              /* tag */
    u_int8_t *,           /* pointer to packet data (or NULL) */
    u_int32_t,             /* payload length */
    libnet_t *,         /* libnet context pointer */
    libnet_ptag_t       /* packet id */
    );


/*
 *  libnet_build_data
 *
 *  Function builds a generic data unit.
 */
libnet_ptag_t           /* packet id on success, -1 on failure */
libnet_build_data(
    u_int8_t *,           /* pointer to packet data (or NULL) */
    u_int32_t,             /* payload length */
    libnet_t *,         /* libnet context pointer */
    libnet_ptag_t       /* packet id */
    );


/*
 *  libnet_build_dhcpv4
 *
 *  Function builds a DHCPv4 header.
 */
libnet_ptag_t           /* packet id on success, -1 on failure */
libnet_build_dhcpv4(
    u_int8_t,             /* opcode */
    u_int8_t,             /* hardware address type */
    u_int8_t,             /* hardware address length */
    u_int8_t,             /* hopcount */
    u_int32_t,             /* transaction ID */
    u_int16_t,            /* number of seconds since trying to bootstrap */
    u_int16_t,            /* unused */
    u_int32_t,             /* client's IP */
    u_int32_t,             /* your IP */
    u_int32_t,             /* server's IP */
    u_int32_t,             /* gateway IP */
    u_int8_t *,           /* client hardware address */
    u_int8_t *,           /* server host name */
    u_int8_t *,           /* boot file name */
    u_int8_t *,           /* pointer to packet data (or NULL) */
    u_int32_t,             /* payload length */
    libnet_t *,         /* libnet context pointer */
    libnet_ptag_t       /* packet id */
    );


/*
 *  libnet_build_bootpv4
 *
 *  Function builds a BOOTPv4 header.
 */
libnet_ptag_t           /* packet id on success, -1 on failure */
libnet_build_bootpv4(
    u_int8_t,             /* opcode */
    u_int8_t,             /* hardware address type */
    u_int8_t,             /* hardware address length */
    u_int8_t,             /* hopcount */
    u_int32_t,             /* transaction ID */
    u_int16_t,            /* number of seconds since trying to bootstrap */
    u_int16_t,            /* flags */
    u_int32_t,             /* client's IP */
    u_int32_t,             /* your IP */
    u_int32_t,             /* server's IP */
    u_int32_t,             /* gateway IP */
    u_int8_t *,           /* client hardware address */
    u_int8_t *,           /* server host name */
    u_int8_t *,           /* boot file name */
    u_int8_t *,           /* pointer to packet data (or NULL) */
    u_int32_t,             /* payload length */
    libnet_t *,         /* libnet context pointer */
    libnet_ptag_t       /* packet id */
    );

/* 
 * libnet_gre_length
 * As length of a GRE 1701 packet depends on flags and version field, this function
 * computes it.
 */
inline u_int32_t          /* length of the packet according to its flags */
libnet_gre_length(
    u_int16_t            /* flags and version */
    );

#define libnet_egre_length libnet_gre_length

/*
 *  libnet_build_gre
 *
 *  Function builds a GRE header.
 */
libnet_ptag_t           /* packet id on success, -1 on failure */
libnet_build_gre(
    u_int16_t,            /* flags and version */
    u_int16_t,            /* type */
    u_int16_t,            /* checksum */
    u_int16_t,            /* offset */
    u_int32_t,             /* key */
    u_int32_t,             /* sequence number*/
    u_int16_t,            /* length for checksum computation */
    u_int8_t *,           /* pointer to packet data (or NULL) */
    u_int32_t,             /* payload length */
    libnet_t *,         /* libnet context pointer */
    libnet_ptag_t       /* packet id */
    );

#define libnet_build_egre libnet_build_gre

/*
 *  libnet_build_gre_sre
 *
 *  Function builds a GRE Source Route Entries header.
 */
libnet_ptag_t           /* packet id on success, -1 on failure */
libnet_build_gre_sre(
    u_int16_t,            /* address family */
    u_int8_t,             /* offset */
    u_int8_t,             /* length */
    u_int8_t *,           /* routing */
    u_int8_t *,           /* pointer to packet data (or NULL) */
    u_int32_t,             /* payload length */
    libnet_t *,         /* libnet context pointer */
    libnet_ptag_t       /* packet id */
    );
/*
 *  libnet_build_gre_last_sre
 *
 *  Function builds the last  GRE Source Route Entries header.
 */
libnet_ptag_t           /* packet id on success, -1 on failure */
libnet_build_gre_last_sre(
    libnet_t *,         /* libnet context pointer */
    libnet_ptag_t       /* packet id */
    );


/*
 *  libnet_build_bgp4_header
 *
 *  Function builds a BGP4 header.
 *
 */
libnet_ptag_t           /* packet id on success, -1 on failure */
libnet_build_bgp4_header(
    u_int8_t *,           /* marker */
    u_int16_t,            /* length */
    u_int8_t,             /* type */
    u_int8_t *,           /* pointer to packet data (or NULL) */
    u_int32_t,             /* payload length */
    libnet_t *,         /* libnet context pointer */
    libnet_ptag_t       /* packet id */
    );

/*
 *  libnet_build_bgp4_open
 *
 *  Function builds a BGP4 open message.
 *
 *  If options are needed (for instance, for authentication), one must use
 *  the payload as no specific pblock is yet provided.
 *
 */
libnet_ptag_t           /* packet id on success, -1 on failure */
libnet_build_bgp4_open(
    u_int8_t,             /* version */
    u_int16_t,            /* my Autonomous System */
    u_int16_t,            /* hold time */
    u_int32_t,             /* BGP Identifier */
    u_int8_t,             /* option length */
    u_int8_t *,           /* pointer to packet data (or NULL) */
    u_int32_t,             /* payload length */
    libnet_t *,         /* libnet context pointer */
    libnet_ptag_t       /* packet id */
    );

/*
 *  libnet_build_bgp4_update
 *
 *  Function builds a BGP4 update message.
 *
 *  the info_len parameter is not present in the packet, but is requested
 *  so that we can compute the needed memory size.
 *
 */
libnet_ptag_t           /* packet id on success, -1 on failure */
libnet_build_bgp4_update(
    u_int16_t,            /* Unfeasible Routes Length */
    u_int8_t *,           /* Withdrawn Routes  */
    u_int16_t,            /* Total Path Attribute Length  */
    u_int8_t *,           /* Path Attributes  */
    u_int16_t,            /* Network Layer Reachability Information length */
    u_int8_t *,           /* Network Layer Reachability Information  */
    u_int8_t *,           /* pointer to packet data (or NULL) */
    u_int32_t,             /* payload length */
    libnet_t *,         /* libnet context pointer */
    libnet_ptag_t       /* packet id */
    );

/*
 *  libnet_build_bgp4_notification
 *
 *  Function builds a BGP4 notification message.
 *
 *  Use the payload if you need more data to pass
 *
 */
libnet_ptag_t           /* packet id on success, -1 on failure */
libnet_build_bgp4_notification(
    u_int8_t,             /* error code */
    u_int8_t,             /* error subcode  */
    u_int8_t *,           /* pointer to packet data (or NULL) */
    u_int32_t,             /* payload length */
    libnet_t *,         /* libnet context pointer */
    libnet_ptag_t       /* packet id */
    );

libnet_ptag_t
libnet_build_link(
u_int8_t *,       /* destination */
u_int8_t *,       /* source */
u_int16_t,        /* type */
u_int8_t *,       /* pointer to packet data (or NULL) */
u_int32_t,         /* payload length */
libnet_t *,     /* libnet context pointer */
libnet_ptag_t   /* packet id */
	);

libnet_ptag_t
libnet_autobuild_link(
u_int8_t *,
u_int16_t,
libnet_t *
	);
/*
 *  libnet_write
 *
 *  Function writes a packet to the wire.  Libnet will know which injection
 *  method to use, as well as if the user wants checksums to be calculated.
 *  Planned functionality for multiple packets will allow for tunable sleep
 *  times between packet writes.
 */
int                     /* number of bytes written if successful, -1 on error */
libnet_write(
    libnet_t *          /* libnet context pointer */
    );


/*
 *  libnet_write_ipv4
 *
 *  Function writes an ipv4 packet through the raw socket interface.  Used
 *  internally by libnet.
 */
int                     /* number of bytes written if successful, -1 on error */
libnet_write_raw_ipv4(
    libnet_t *,         /* libnet context pointer */
    u_int8_t *,           /* pointer to the assembled packet */
    u_int32_t              /* size of the assembled packet */
    );


/*
 *  libnet_write_ipv6
 *
 *  Function writes an ipv6 packet through the raw socket interface.  Used
 *  internally by libnet.
 */
int                     /* number of bytes written if successful, -1 on error */
libnet_write_raw_ipv6(
    libnet_t *,         /* libnet context pointer */
    u_int8_t *,           /* pointer to the assembled packet */
    u_int32_t              /* size of the assembled packet */
    );


/*
 *  libnet_write_link
 *
 *  Function writes a packet through the link-layer interface.  Used
 *  internally by libnet.
 */
int                     /* number of bytes written if successful, -1 on error */
libnet_write_link(
    libnet_t *,         /* libnet context pointer */
    u_int8_t *,           /* pointer to the assembled packet */
    u_int32_t              /* size of the assembled packet */
    );


/*
 *  libnet_open_raw4
 *
 *  Function opens a IPv4 raw socket and sets IP_HDRINCL socket option.
 *  Under linux it also sets SO_BROADCAST in order to write broadcast packets.
 */
#if ((_WIN32) && !(__CYGWIN__))
SOCKET
libnet_open_raw4(
    libnet_t *
	);
#else
int                     /* opened file desciptor, or -1 on error */
libnet_open_raw4(
    libnet_t *          /* libnet context pointer */
    );
#endif

/*
 *  libnet_close_raw4
 *
 *  Function closes the IPv4 raw socket.
 */
int                     /* 1 upon success, or -1 on error */
libnet_close_raw4(
    libnet_t *          /* libnet context pointer */
    );


/*  
 *  libnet_open_raw6
 * 
 *  Function opens a IPv6 raw socket and sets IP_HDRINCL socket option.
 *  Under linux it also sets SO_BROADCAST in order to write broadcast packets.
 */
int                     /* opened file desciptor, or -1 on error */
libnet_open_raw6(
    libnet_t *          /* libnet context pointer */
    );   
       
       
/*
 *  libnet_close_raw6
 *
 *  Function closes the IPv6 raw socket.
 */
int                     /* 1 upon success, or -1 on error */
libnet_close_raw6(
    libnet_t *          /* libnet context pointer */
    );


/*
 *  libnet_select_device
 *
 *  Function finds a device for use with libnet's link-layer interface.
 */