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| 4707 | mejdrech | 1 | /* |
| 2 | * Copyright (c) 2008 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 module. |
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| 35 | */ |
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| 36 | |||
| 37 | #ifndef __NET_ICMP_H__ |
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| 38 | #define __NET_ICMP_H__ |
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| 39 | |||
| 4715 | mejdrech | 40 | #include <atomic.h> |
| 4707 | mejdrech | 41 | #include <fibril_sync.h> |
| 42 | |||
| 4715 | mejdrech | 43 | #include "../../include/icmp_codes.h" |
| 4707 | mejdrech | 44 | |
| 4715 | mejdrech | 45 | #include "../../structures/int_map.h" |
| 46 | #include "../../structures/generic_field.h" |
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| 47 | |||
| 48 | #include "icmp_header.h" |
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| 49 | |||
| 4707 | mejdrech | 50 | /** Type definition of the ICMP global data. |
| 51 | * @see icmp_globals |
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| 52 | */ |
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| 53 | typedef struct icmp_globals icmp_globals_t; |
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| 54 | |||
| 4715 | mejdrech | 55 | /** Timeout locks map. |
| 56 | * Maps message identifiers to timeout implementing atomic variables. |
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| 57 | * Sending fibril waits for its associated atomic variable to be set nonzero. |
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| 58 | * Receiving fibril sets the associated atomic variable with the return value. |
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| 59 | */ |
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| 60 | INT_MAP_DECLARE( time_locks, atomic_t ); |
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| 61 | |||
| 62 | /** Echo specific data field. |
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| 63 | * Used for bundle modules. |
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| 64 | * The bundle module gets an index to the assigned echo specific data while connecting. |
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| 65 | * The index is used in the future semi-remote calls instead of the ICMP phone. |
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| 66 | */ |
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| 67 | GENERIC_FIELD_DECLARE( echo_data, icmp_echo_t ); |
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| 68 | |||
| 4707 | mejdrech | 69 | /** ICMP global data. |
| 70 | */ |
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| 71 | struct icmp_globals{ |
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| 72 | /** IP module phone. |
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| 73 | */ |
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| 74 | int ip_phone; |
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| 75 | /** Reserved packet prefix length. |
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| 76 | */ |
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| 77 | size_t prefix; |
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| 78 | /** Maximal packet content length. |
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| 79 | */ |
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| 80 | size_t content; |
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| 81 | /** Reserved packet suffix length. |
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| 82 | */ |
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| 83 | size_t suffix; |
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| 84 | /** Packet address length. |
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| 85 | */ |
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| 86 | size_t addr_len; |
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| 87 | /** Networking module phone. |
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| 88 | */ |
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| 89 | int net_phone; |
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| 4715 | mejdrech | 90 | /** The last used identifier number. |
| 91 | */ |
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| 92 | icmp_param_t last_used_id; |
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| 93 | /** The budled modules assigned echo specific data. |
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| 94 | */ |
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| 95 | echo_data_t echo_data; |
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| 96 | /** Echo timeout locks. |
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| 97 | */ |
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| 98 | time_locks_t time_locks; |
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| 4707 | mejdrech | 99 | /** Safety lock. |
| 100 | */ |
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| 101 | fibril_rwlock_t lock; |
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| 102 | }; |
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| 103 | |||
| 104 | #endif |
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| 105 | |||
| 106 | /** @} |
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| 107 | */ |
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| 108 |