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| Rev | Author | Line No. | Line |
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| 4707 | mejdrech | 1 | /* |
| 2 | * Copyright (c) 2009 Lukas Mejdrech |
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| 3 | * All rights reserved. |
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| 4 | * |
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| 5 | * Redistribution and use in source and binary forms, with or without |
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| 6 | * modification, are permitted provided that the following conditions |
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| 7 | * are met: |
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| 8 | * |
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| 9 | * - Redistributions of source code must retain the above copyright |
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| 10 | * notice, this list of conditions and the following disclaimer. |
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| 11 | * - Redistributions in binary form must reproduce the above copyright |
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| 12 | * notice, this list of conditions and the following disclaimer in the |
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| 13 | * documentation and/or other materials provided with the distribution. |
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| 14 | * - The name of the author may not be used to endorse or promote products |
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| 15 | * derived from this software without specific prior written permission. |
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| 16 | * |
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| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
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| 18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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| 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
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| 20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
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| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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| 22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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| 23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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| 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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| 25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
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| 26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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| 27 | */ |
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| 28 | |||
| 29 | /** @addtogroup icmp |
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| 30 | * @{ |
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| 31 | */ |
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| 32 | |||
| 33 | /** @file |
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| 34 | * ICMP client interface implementation. |
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| 35 | * @see icmp_client.h |
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| 36 | */ |
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| 37 | |||
| 38 | #include <errno.h> |
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| 39 | |||
| 40 | #include <sys/types.h> |
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| 41 | |||
| 42 | #include "../../include/icmp_codes.h" |
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| 43 | #include "../../include/icmp_client.h" |
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| 44 | |||
| 45 | #include "../../structures/packet/packet.h" |
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| 46 | #include "../../structures/packet/packet_client.h" |
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| 47 | |||
| 48 | #include "icmp_header.h" |
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| 49 | |||
| 50 | int icmp_client_process_packet( packet_t packet, icmp_type_t * type, icmp_code_t * code, icmp_param_t * pointer, icmp_param_t * mtu ){ |
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| 51 | icmp_header_ref header; |
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| 52 | |||
| 53 | header = ( icmp_header_ref ) packet_get_data( packet ); |
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| 4721 | mejdrech | 54 | if(( ! header ) |
| 55 | || ( packet_get_data_length( packet ) < sizeof( icmp_header_t ))){ |
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| 56 | return 0; |
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| 57 | } |
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| 4707 | mejdrech | 58 | if( type ) * type = header->type; |
| 59 | if( code ) * code = header->code; |
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| 60 | if( pointer ) * pointer = header->un.param.pointer; |
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| 61 | if( mtu ) * mtu = header->un.frag.mtu; |
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| 62 | return sizeof( icmp_header_t ); |
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| 63 | } |
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| 64 | |||
| 4721 | mejdrech | 65 | size_t icmp_client_header_length( packet_t packet ){ |
| 66 | if( packet_get_data_length( packet ) < sizeof( icmp_header_t )){ |
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| 67 | return 0; |
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| 68 | } |
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| 4707 | mejdrech | 69 | return sizeof( icmp_header_t ); |
| 70 | } |
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| 71 | |||
| 72 | /** @} |
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| 73 | */ |