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| Rev | Author | Line No. | Line |
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| 3912 | 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 net_nil |
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| 30 | * @{ |
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| 31 | */ |
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| 32 | |||
| 33 | /** @file |
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| 34 | * Internetwork layer services - network interface layer service type translation. |
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| 35 | */ |
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| 36 | |||
| 37 | #ifndef __NET_PROTOCOL_MAP_H__ |
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| 38 | #define __NET_PROTOCOL_MAP_H__ |
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| 39 | |||
| 40 | #include <ipc/services.h> |
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| 41 | |||
| 42 | #include "ethernet_protocols.h" |
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| 43 | |||
| 44 | /** Maps the internetwork layer service to the network interface layer type. |
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| 45 | * @param nil Network interface layer service. Input parameter. |
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| 46 | * @param il Internetwork layer service. Input parameter. |
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| 47 | * @returns Network interface layer type of the internetworking layer service. |
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| 48 | * @returns 0 if mapping is not found. |
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| 49 | */ |
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| 50 | static inline int protocol_map( services_t nil, services_t il ){ |
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| 51 | switch( nil ){ |
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| 52 | case SERVICE_ETHERNET: |
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| 53 | switch( il ){ |
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| 54 | case SERVICE_IP: |
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| 55 | return ETH_P_IP; |
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| 56 | case SERVICE_ARP: |
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| 57 | return ETH_P_ARP; |
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| 58 | default: |
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| 59 | return 0; |
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| 60 | } |
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| 61 | default: |
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| 62 | return 0; |
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| 63 | } |
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| 64 | } |
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| 65 | |||
| 66 | /** Maps the network interface layer type to the internetwork layer service. |
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| 67 | * @param nil Network interface layer service. Input parameter. |
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| 68 | * @param protocol Network interface layer type. Input parameter. |
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| 69 | * @returns Internetwork layer service of the network interface layer type. |
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| 70 | * @returns 0 if mapping is not found. |
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| 71 | */ |
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| 72 | static inline services_t protocol_unmap( services_t nil, int protocol ){ |
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| 73 | switch( nil ){ |
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| 74 | case SERVICE_ETHERNET: |
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| 75 | switch( protocol ){ |
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| 76 | case ETH_P_IP: |
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| 77 | return SERVICE_IP; |
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| 78 | case ETH_P_ARP: |
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| 79 | return SERVICE_ARP; |
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| 80 | default: |
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| 81 | return 0; |
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| 82 | } |
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| 83 | default: |
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| 84 | return 0; |
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| 85 | } |
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| 86 | } |
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| 87 | |||
| 88 | #endif |
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| 89 | |||
| 90 | /** @} |
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| 91 | */ |