1 | /* |
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2 | * Copyright (c) 1982, 1986, 1990, 1993 |
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3 | * The Regents of the University of California. 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 | * 1. Redistributions of source code must retain the above copyright |
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9 | * notice, this list of conditions and the following disclaimer. |
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10 | * 2. Redistributions in binary form must reproduce the above copyright |
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11 | * notice, this list of conditions and the following disclaimer in the |
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12 | * documentation and/or other materials provided with the distribution. |
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13 | * 4. Neither the name of the University nor the names of its contributors |
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14 | * may be used to endorse or promote products derived from this software |
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15 | * without specific prior written permission. |
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16 | * |
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17 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
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18 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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19 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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20 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
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21 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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22 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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23 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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24 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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25 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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26 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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27 | * SUCH DAMAGE. |
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28 | * |
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29 | * @(#)in_pcb.h 8.1 (Berkeley) 6/10/93 |
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30 | * $FreeBSD: src/sys/netinet/in_pcb.h,v 1.89 2006/07/18 22:34:27 ups Exp $ |
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31 | */ |
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32 | |
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33 | /* |
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34 | * $Id$ |
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35 | */ |
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36 | |
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37 | #ifndef _NETINET_IN_PCB_H_ |
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38 | #define _NETINET_IN_PCB_H_ |
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39 | |
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40 | #include <rtems/bsd/sys/queue.h> |
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41 | |
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42 | /* |
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43 | * Common structure pcb for internet protocol implementation. |
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44 | * Here are stored pointers to local and foreign host table |
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45 | * entries, local and foreign socket numbers, and pointers |
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46 | * up (to a socket structure) and down (to a protocol-specific) |
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47 | * control block. |
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48 | */ |
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49 | LIST_HEAD(inpcbhead, inpcb); |
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50 | |
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51 | typedef u_int64_t inp_gen_t; |
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52 | |
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53 | struct inpcb { |
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54 | LIST_ENTRY(inpcb) inp_hash; /* hash list */ |
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55 | LIST_ENTRY(inpcb) inp_list; /* list for all PCBs of this proto */ |
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56 | struct inpcbinfo *inp_pcbinfo; /* PCB list info */ |
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57 | struct in_addr inp_faddr; /* foreign host table entry */ |
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58 | struct in_addr inp_laddr; /* local host table entry */ |
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59 | u_short inp_fport; /* foreign port */ |
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60 | u_short inp_lport; /* local port */ |
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61 | caddr_t inp_ppcb; /* pointer to per-protocol pcb */ |
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62 | struct socket *inp_socket; /* back pointer to socket */ |
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63 | struct route inp_route; /* placeholder for routing entry */ |
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64 | int inp_flags; /* generic IP/datagram flags */ |
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65 | u_char inp_vflag; /* IP version flag (v4/v6) */ |
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66 | u_char inp_ip_ttl; /* time to live proto */ |
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67 | u_char inp_ip_p; /* protocol proto */ |
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68 | u_char inp_ip_minttl; /* minimum TTL or drop */ |
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69 | |
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70 | /* protocol dependent part; options */ |
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71 | struct { |
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72 | u_char inp4_ip_tos; /* type of service proto */ |
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73 | struct mbuf *inp4_options; /* IP options */ |
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74 | struct ip_moptions *inp4_moptions; /* IP multicast options */ |
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75 | } inp_depend4; |
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76 | #define inp_ip_tos inp_depend4.inp4_ip_tos |
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77 | #define inp_options inp_depend4.inp4_options |
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78 | #define inp_moptions inp_depend4.inp4_moptions |
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79 | inp_gen_t inp_gencnt; /* generation count of this instance */ |
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80 | }; |
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81 | |
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82 | /* |
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83 | * Interface exported to userland by various protocols which use |
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84 | * inpcbs. Hack alert -- only define if struct xsocket is in scope. |
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85 | */ |
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86 | #ifdef _SYS_SOCKETVAR_H_ |
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87 | struct xinpcb { |
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88 | size_t xi_len; /* length of this structure */ |
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89 | struct inpcb xi_inp; |
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90 | /* struct xsocket xi_socket; ccj removed */ |
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91 | u_int64_t xi_alignment_hack; |
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92 | }; |
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93 | |
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94 | struct xinpgen { |
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95 | size_t xig_len; /* length of this structure */ |
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96 | u_int xig_count; /* number of PCBs at this time */ |
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97 | inp_gen_t xig_gen; /* generation count at this time */ |
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98 | so_gen_t xig_sogen; /* socket generation count at this time */ |
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99 | }; |
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100 | #endif /* _SYS_SOCKETVAR_H_ */ |
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101 | |
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102 | struct inpcbinfo { /* XXX documentation, prefixes */ |
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103 | struct inpcbhead *listhead; |
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104 | struct inpcbhead *hashbase; |
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105 | unsigned long hashmask; |
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106 | unsigned short lastport; |
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107 | unsigned short lastlow; |
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108 | unsigned short lasthi; |
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109 | u_int ipi_count; /* number of pcbs in this list */ |
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110 | u_int64_t ipi_gencnt; /* current generation count */ |
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111 | }; |
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112 | |
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113 | #define INP_PCBHASH(faddr, lport, fport, mask) \ |
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114 | (((faddr) ^ ((faddr) >> 16) ^ (lport) ^ (fport)) & (mask)) |
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115 | |
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116 | /* flags in inp_flags: */ |
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117 | #define INP_RECVOPTS 0x01 /* receive incoming IP options */ |
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118 | #define INP_RECVRETOPTS 0x02 /* receive IP options for reply */ |
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119 | #define INP_RECVDSTADDR 0x04 /* receive IP dst address */ |
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120 | #define INP_HDRINCL 0x08 /* user supplies entire IP header */ |
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121 | #define INP_HIGHPORT 0x10 /* user wants "high" port binding */ |
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122 | #define INP_LOWPORT 0x20 /* user wants "low" port binding */ |
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123 | #define INP_ANONPORT 0x40 /* port chosen for user */ |
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124 | #define INP_RECVIF 0x80 /* receive incoming interface */ |
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125 | #define INP_CONTROLOPTS (INP_RECVOPTS|INP_RECVRETOPTS|INP_RECVDSTADDR|\ |
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126 | INP_RECVIF) |
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127 | |
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128 | #define INPLOOKUP_WILDCARD 1 |
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129 | #define sotoinpcb(so) ((struct inpcb *)(so)->so_pcb) |
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130 | |
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131 | #ifdef _KERNEL |
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132 | void in_losing(struct inpcb *); |
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133 | int in_pcballoc(struct socket *, struct inpcbinfo *); |
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134 | int in_pcbbind(struct inpcb *, struct mbuf *); |
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135 | int in_pcbconnect(struct inpcb *, struct mbuf *); |
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136 | void in_pcbdetach(struct inpcb *); |
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137 | void in_pcbdisconnect(struct inpcb *); |
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138 | int in_pcbladdr(struct inpcb *, struct mbuf *, |
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139 | struct sockaddr_in **); |
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140 | struct inpcb * |
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141 | in_pcblookup(struct inpcbinfo *, |
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142 | struct in_addr, u_int, struct in_addr, u_int, int); |
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143 | struct inpcb * |
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144 | in_pcblookuphash(struct inpcbinfo *, |
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145 | struct in_addr, u_int, struct in_addr, u_int, int); |
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146 | void in_pcbnotify(struct inpcbhead *, struct sockaddr *, |
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147 | u_int, struct in_addr, u_int, int, void (*)(struct inpcb *, int)); |
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148 | void in_pcbrehash(struct inpcb *); |
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149 | void in_setpeeraddr(struct inpcb *, struct mbuf *); |
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150 | void in_setsockaddr(struct inpcb *, struct mbuf *); |
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151 | #endif /* _KERNEL */ |
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152 | |
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153 | #endif /* !_NETINET_IN_PCB_H_ */ |
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