| 0,0 → 1,71 |
|---|
| /* |
| * Copyright (c) 2009 Lukas Mejdrech |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * - Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * - 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. |
| * - The name of the author may not be used to endorse or promote products |
| * derived from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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 SUCH DAMAGE. |
| */ |
| |
| /** @addtogroup ip |
| * @{ |
| */ |
| |
| /** |
| * @file |
| */ |
| |
| #include <errno.h> |
| |
| #include <sys/types.h> |
| |
| #include "../../include/ip_client.h" |
| |
| #include "../../structures/packet/packet.h" |
| #include "../../structures/packet/packet_client.h" |
| |
| #include "ip_header.h" |
| |
| int ip_client_prepare_packet( packet_t packet, int protocol, int ttl, int tos, int dont_fragment, int ipopt_length ){ |
| ip_header_ref header; |
| uint8_t * data; |
| int padding; |
| |
| padding = ipopt_length % 4; |
| if( padding ){ |
| padding = 4 - padding; |
| ipopt_length += padding; |
| } |
| data = ( uint8_t * ) packet_prefix( packet, sizeof( ip_header_t ) + padding ); |
| if( ! data ) return ENOMEM; |
| while( padding -- ) data[ sizeof( ip_header_t ) + padding ] = IPOPT_NOOP; |
| header = ( ip_header_ref ) data; |
| header->ihl = ( sizeof( ip_header_t ) + ipopt_length ) / 4; |
| header->ttl = ( ttl > 0 ) ? (( ttl <= MAXTTL ) ? ttl : MAXTTL ) : IPDEFTTL; |
| header->tos = tos; |
| header->protocol = protocol; |
| if( dont_fragment ) header->flags = IPFLAG_DONT_FRAGMENT; |
| return EOK; |
| } |
| |
| /** @} |
| */ |
| Property changes: |
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| Added: svn:eol-style |
|---|
| +native |
|---|
| \ No newline at end of property |
|---|