| 1 | /* |
| 2 | * Copyright (c) 1982, 1986 Regents of the University of California. |
| 3 | * All rights reserved. |
| 4 | * |
| 5 | * Redistribution and use in source and binary forms are permitted |
| 6 | * provided that the above copyright notice and this paragraph are |
| 7 | * duplicated in all such forms and that any documentation, |
| 8 | * advertising materials, and other materials related to such |
| 9 | * distribution and use acknowledge that the software was developed |
| 10 | * by the University of California, Berkeley. The name of the |
| 11 | * University may not be used to endorse or promote products derived |
| 12 | * from this software without specific prior written permission. |
| 13 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR |
| 14 | * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED |
| 15 | * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. |
| 16 | * |
| 17 | * @(#)uipc_domain.c 7.6 (Berkeley) %G% |
| 18 | */ |
| 19 | |
| 20 | #include "param.h" |
| 21 | #include "socket.h" |
| 22 | #include "protosw.h" |
| 23 | #include "domain.h" |
| 24 | #include "mbuf.h" |
| 25 | #include "time.h" |
| 26 | #include "kernel.h" |
| 27 | |
| 28 | #define ADDDOMAIN(x) { \ |
| 29 | extern struct domain x/**/domain; \ |
| 30 | x/**/domain.dom_next = domains; \ |
| 31 | domains = &x/**/domain; \ |
| 32 | } |
| 33 | |
| 34 | domaininit() |
| 35 | { |
| 36 | register struct domain *dp; |
| 37 | register struct protosw *pr; |
| 38 | |
| 39 | #ifndef lint |
| 40 | ADDDOMAIN(unix); |
| 41 | ADDDOMAIN(route); |
| 42 | #ifdef INET |
| 43 | ADDDOMAIN(inet); |
| 44 | #endif |
| 45 | #ifdef NS |
| 46 | ADDDOMAIN(ns); |
| 47 | #endif |
| 48 | #ifdef ISO |
| 49 | ADDDOMAIN(iso); |
| 50 | #endif |
| 51 | #ifdef RMP |
| 52 | ADDDOMAIN(rmp); |
| 53 | #endif |
| 54 | #include "imp.h" |
| 55 | #if NIMP > 0 |
| 56 | ADDDOMAIN(imp); |
| 57 | #endif |
| 58 | #endif |
| 59 | |
| 60 | for (dp = domains; dp; dp = dp->dom_next) { |
| 61 | if (dp->dom_init) |
| 62 | (*dp->dom_init)(); |
| 63 | for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++) |
| 64 | if (pr->pr_init) |
| 65 | (*pr->pr_init)(); |
| 66 | } |
| 67 | |
| 68 | if (max_linkhdr < 16) /* XXX */ |
| 69 | max_linkhdr = 16; |
| 70 | max_hdr = max_linkhdr + max_protohdr; |
| 71 | max_datalen = MHLEN - max_hdr; |
| 72 | pffasttimo(); |
| 73 | pfslowtimo(); |
| 74 | } |
| 75 | |
| 76 | struct protosw * |
| 77 | pffindtype(family, type) |
| 78 | int family, type; |
| 79 | { |
| 80 | register struct domain *dp; |
| 81 | register struct protosw *pr; |
| 82 | |
| 83 | for (dp = domains; dp; dp = dp->dom_next) |
| 84 | if (dp->dom_family == family) |
| 85 | goto found; |
| 86 | return (0); |
| 87 | found: |
| 88 | for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++) |
| 89 | if (pr->pr_type && pr->pr_type == type) |
| 90 | return (pr); |
| 91 | return (0); |
| 92 | } |
| 93 | |
| 94 | struct protosw * |
| 95 | pffindproto(family, protocol, type) |
| 96 | int family, protocol, type; |
| 97 | { |
| 98 | register struct domain *dp; |
| 99 | register struct protosw *pr; |
| 100 | struct protosw *maybe = 0; |
| 101 | |
| 102 | if (family == 0) |
| 103 | return (0); |
| 104 | for (dp = domains; dp; dp = dp->dom_next) |
| 105 | if (dp->dom_family == family) |
| 106 | goto found; |
| 107 | return (0); |
| 108 | found: |
| 109 | for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++) { |
| 110 | if ((pr->pr_protocol == protocol) && (pr->pr_type == type)) |
| 111 | return (pr); |
| 112 | |
| 113 | if (type == SOCK_RAW && pr->pr_type == SOCK_RAW && |
| 114 | pr->pr_protocol == 0 && maybe == (struct protosw *)0) |
| 115 | maybe = pr; |
| 116 | } |
| 117 | return (maybe); |
| 118 | } |
| 119 | |
| 120 | pfctlinput(cmd, sa) |
| 121 | int cmd; |
| 122 | struct sockaddr *sa; |
| 123 | { |
| 124 | register struct domain *dp; |
| 125 | register struct protosw *pr; |
| 126 | |
| 127 | for (dp = domains; dp; dp = dp->dom_next) |
| 128 | for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++) |
| 129 | if (pr->pr_ctlinput) |
| 130 | (*pr->pr_ctlinput)(cmd, sa, (caddr_t) 0); |
| 131 | } |
| 132 | |
| 133 | pfslowtimo() |
| 134 | { |
| 135 | register struct domain *dp; |
| 136 | register struct protosw *pr; |
| 137 | |
| 138 | for (dp = domains; dp; dp = dp->dom_next) |
| 139 | for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++) |
| 140 | if (pr->pr_slowtimo) |
| 141 | (*pr->pr_slowtimo)(); |
| 142 | timeout(pfslowtimo, (caddr_t)0, hz/2); |
| 143 | } |
| 144 | |
| 145 | pffasttimo() |
| 146 | { |
| 147 | register struct domain *dp; |
| 148 | register struct protosw *pr; |
| 149 | |
| 150 | for (dp = domains; dp; dp = dp->dom_next) |
| 151 | for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++) |
| 152 | if (pr->pr_fasttimo) |
| 153 | (*pr->pr_fasttimo)(); |
| 154 | timeout(pffasttimo, (caddr_t)0, hz/5); |
| 155 | } |