* libnet_build_fddi.c - Fiber Distributed Data Interface packet assembler
* Copyright (c) 1998 - 2004 Mike D. Schiffman <mike@infonexus.com>
* Jason Damron <jsdamron@hushmail.com>
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
#include "../include/config.h"
#if (!(_WIN32) || (__CYGWIN__))
#include "../include/libnet.h"
#include "../include/win32/libnet.h"
libnet_build_fddi(u_int8_t fc
, u_int8_t
*dst
, u_int8_t
*src
, u_int8_t dsap
,
u_int8_t ssap
, u_int8_t cf
, u_int8_t
*org
, u_int16_t type
, u_int8_t
*payload
,
u_int32_t payload_s
, libnet_t
*l
, libnet_ptag_t ptag
)
struct libnet_fddi_hdr fddi_hdr
;
/* sanity check injection type if we're not in advanced mode */
if (l
->injection_type
!= LIBNET_LINK
&&
!(((l
->injection_type
) & LIBNET_ADV_MASK
)))
snprintf(l
->err_buf
, LIBNET_ERRBUF_SIZE
,
"%s(): called with non-link layer wire injection primitive",
n
= LIBNET_FDDI_H
+ payload_s
;
* Find the existing protocol block if a ptag is specified, or create
p
= libnet_pblock_probe(l
, ptag
, n
, LIBNET_PBLOCK_FDDI_H
);
memset(&fddi_hdr
, 0, sizeof(fddi_hdr
));
fddi_hdr
.fddi_frame_control
= fc
; /* Class/Format/Priority */
memcpy(fddi_hdr
.fddi_dhost
, dst
, FDDI_ADDR_LEN
); /* dst fddi address */
memcpy(fddi_hdr
.fddi_shost
, src
, FDDI_ADDR_LEN
); /* source fddi address */
fddi_hdr
.fddi_llc_dsap
= dsap
; /* */
fddi_hdr
.fddi_llc_ssap
= ssap
; /* */
fddi_hdr
.fddi_llc_control_field
= cf
; /* Class/Format/Priority */
memcpy(&fddi_hdr
.fddi_llc_org_code
, org
, LIBNET_ORG_CODE_SIZE
);
/* Deal with unaligned int16_t for type */
protocol_type
= htons(type
);
memcpy(&fddi_hdr
.fddi_type
, &protocol_type
, sizeof(int16_t)); /* Protocol Type */
n
= libnet_pblock_append(l
, p
, (u_int8_t
*)&fddi_hdr
, LIBNET_FDDI_H
);
if ((payload
&& !payload_s
) || (!payload
&& payload_s
))
snprintf(l
->err_buf
, LIBNET_ERRBUF_SIZE
,
"%s(): payload inconsistency\n", __func__
);
if (payload
&& payload_s
)
n
= libnet_pblock_append(l
, p
, payload
, payload_s
);
return (ptag
? ptag
: libnet_pblock_update(l
, p
, h
, LIBNET_PBLOCK_FDDI_H
));
libnet_pblock_delete(l
, p
);
libnet_autobuild_fddi(u_int8_t fc
, u_int8_t
*dst
, u_int8_t dsap
, u_int8_t ssap
,
u_int8_t cf
, u_int8_t
*org
, u_int16_t type
, libnet_t
*l
)
struct libnet_fddi_addr
*src
;
struct libnet_fddi_hdr fddi_hdr
;
/* sanity check injection type if we're not in advanced mode */
if (l
->injection_type
!= LIBNET_LINK
&&
!(((l
->injection_type
) & LIBNET_ADV_MASK
)))
snprintf(l
->err_buf
, LIBNET_ERRBUF_SIZE
,
"%s(): called with non-link layer wire injection primitive",
ptag
= LIBNET_PTAG_INITIALIZER
;
/* FDDI and Ethernet have the same address size - so just typecast */
src
= (struct libnet_fddi_addr
*) libnet_get_hwaddr(l
);
/* err msg set in libnet_get_hwaddr() */
p
= libnet_pblock_probe(l
, ptag
, n
, LIBNET_PBLOCK_FDDI_H
);
memset(&fddi_hdr
, 0, sizeof(fddi_hdr
));
fddi_hdr
.fddi_frame_control
= fc
; /* Class/Format/Priority */
memcpy(fddi_hdr
.fddi_dhost
, dst
, FDDI_ADDR_LEN
); /* destination fddi address */
memcpy(fddi_hdr
.fddi_shost
, src
, FDDI_ADDR_LEN
); /* source fddi address */
fddi_hdr
.fddi_llc_dsap
= dsap
; /* */
fddi_hdr
.fddi_llc_ssap
= ssap
; /* */
fddi_hdr
.fddi_llc_control_field
= cf
; /* Class/Format/Priority */
memcpy(&fddi_hdr
.fddi_llc_org_code
, org
, LIBNET_ORG_CODE_SIZE
);
/* Deal with unaligned int16_t for type */
protocol_type
= htons(type
);
memcpy(&fddi_hdr
.fddi_type
, &protocol_type
, sizeof(int16_t)); /* Protocol Type */
n
= libnet_pblock_append(l
, p
, (u_int8_t
*)&fddi_hdr
, LIBNET_FDDI_H
);
return (libnet_pblock_update(l
, p
, h
, LIBNET_PBLOCK_FDDI_H
));
libnet_pblock_delete(l
, p
);