1 | /*- |
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2 | * Copyright (c) 1996-2000 |
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3 | * University of Southern California/Information Sciences Institute. |
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4 | * All rights reserved. |
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5 | * |
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6 | * Redistribution and use in source and binary forms, with or without |
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7 | * modification, are permitted provided that the following conditions |
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8 | * are met: |
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9 | * 1. 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 | * 2. 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 | * 3. Neither the name of the project nor the names of its contributors |
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15 | * may be used to endorse or promote products derived from this software |
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16 | * without specific prior written permission. |
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17 | * |
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18 | * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND |
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19 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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20 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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21 | * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE |
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22 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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23 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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24 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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25 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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26 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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27 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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28 | * SUCH DAMAGE. |
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29 | * |
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30 | * $FreeBSD$ |
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31 | */ |
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32 | |
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33 | #ifndef _NETINET_PIM_H_ |
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34 | #define _NETINET_PIM_H_ |
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35 | |
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36 | /* |
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37 | * Protocol Independent Multicast (PIM) definitions. |
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38 | * RFC 2362, June 1998. |
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39 | * |
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40 | * Written by Ahmed Helmy, USC/SGI, July 1996. |
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41 | * Modified by George Edmond Eddy (Rusty), ISI, February 1998. |
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42 | * Modified by Pavlin Radoslavov, USC/ISI, May 1998, October 2000. |
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43 | */ |
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44 | |
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45 | #include <rtems/bsd/sys/types.h> |
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46 | |
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47 | #ifndef _PIM_VT |
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48 | #ifndef BYTE_ORDER |
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49 | # error BYTE_ORDER is not defined! |
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50 | #endif |
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51 | #if (BYTE_ORDER != BIG_ENDIAN) && (BYTE_ORDER != LITTLE_ENDIAN) |
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52 | # error BYTE_ORDER must be defined to either BIG_ENDIAN or LITTLE_ENDIAN |
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53 | #endif |
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54 | #endif /* ! _PIM_VT */ |
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55 | |
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56 | /* |
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57 | * PIM packet header |
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58 | */ |
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59 | struct pim { |
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60 | #ifdef _PIM_VT |
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61 | uint8_t pim_vt; /* PIM version and message type */ |
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62 | #else /* ! _PIM_VT */ |
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63 | #if BYTE_ORDER == BIG_ENDIAN |
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64 | u_int pim_vers:4, /* PIM protocol version */ |
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65 | pim_type:4; /* PIM message type */ |
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66 | #endif |
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67 | #if BYTE_ORDER == LITTLE_ENDIAN |
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68 | u_int pim_type:4, /* PIM message type */ |
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69 | pim_vers:4; /* PIM protocol version */ |
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70 | #endif |
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71 | #endif /* ! _PIM_VT */ |
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72 | uint8_t pim_reserved; /* Reserved */ |
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73 | uint16_t pim_cksum; /* IP-style checksum */ |
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74 | }; |
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75 | /* KAME-related name backward compatibility */ |
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76 | #define pim_ver pim_vers |
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77 | #define pim_rsv pim_reserved |
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78 | |
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79 | #ifdef _PIM_VT |
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80 | #define PIM_MAKE_VT(v, t) (0xff & (((v) << 4) | (0x0f & (t)))) |
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81 | #define PIM_VT_V(x) (((x) >> 4) & 0x0f) |
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82 | #define PIM_VT_T(x) ((x) & 0x0f) |
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83 | #endif /* _PIM_VT */ |
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84 | |
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85 | #define PIM_VERSION 2 |
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86 | #define PIM_MINLEN 8 /* PIM message min. length */ |
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87 | #define PIM_REG_MINLEN (PIM_MINLEN+20) /* PIM Register hdr + inner IPv4 hdr */ |
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88 | #define PIM6_REG_MINLEN (PIM_MINLEN+40) /* PIM Register hdr + inner IPv6 hdr */ |
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89 | |
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90 | /* |
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91 | * PIM message types |
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92 | */ |
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93 | #define PIM_HELLO 0x0 /* PIM-SM and PIM-DM */ |
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94 | #define PIM_REGISTER 0x1 /* PIM-SM only */ |
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95 | #define PIM_REGISTER_STOP 0x2 /* PIM-SM only */ |
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96 | #define PIM_JOIN_PRUNE 0x3 /* PIM-SM and PIM-DM */ |
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97 | #define PIM_BOOTSTRAP 0x4 /* PIM-SM only */ |
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98 | #define PIM_ASSERT 0x5 /* PIM-SM and PIM-DM */ |
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99 | #define PIM_GRAFT 0x6 /* PIM-DM only */ |
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100 | #define PIM_GRAFT_ACK 0x7 /* PIM-DM only */ |
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101 | #define PIM_CAND_RP_ADV 0x8 /* PIM-SM only */ |
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102 | #define PIM_ALL_DF_ELECTION 0xa /* Bidir-PIM-SM only */ |
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103 | |
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104 | /* |
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105 | * PIM-Register message flags |
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106 | */ |
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107 | #define PIM_BORDER_REGISTER 0x80000000U /* The Border bit (host-order) */ |
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108 | #define PIM_NULL_REGISTER 0x40000000U /* The Null-Register bit (host-order)*/ |
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109 | |
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110 | /* |
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111 | * All-PIM-Routers IPv4 and IPv6 multicast addresses |
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112 | */ |
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113 | #define INADDR_ALLPIM_ROUTERS_GROUP (uint32_t)0xe000000dU /* 224.0.0.13 */ |
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114 | #define IN6ADDR_LINKLOCAL_ALLPIM_ROUTERS "ff02::d" |
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115 | #define IN6ADDR_LINKLOCAL_ALLPIM_ROUTERS_INIT \ |
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116 | {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ |
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117 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0d }}} |
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118 | |
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119 | #endif /* _NETINET_PIM_H_ */ |
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