uipc_domain.c revision 1.8
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, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the University of 16 * California, Berkeley and its contributors. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * from: @(#)uipc_domain.c 7.9 (Berkeley) 3/4/91 34 * $Id: uipc_domain.c,v 1.8 1994/05/05 05:38:45 cgd Exp $ 35 */ 36 37 #include <sys/cdefs.h> 38 #include <sys/param.h> 39 #include <sys/systm.h> 40 #include <sys/socket.h> 41 #include <sys/protosw.h> 42 #include <sys/domain.h> 43 #include <sys/mbuf.h> 44 #include <sys/time.h> 45 #include <sys/kernel.h> 46 47 #define ADDDOMAIN(x) { \ 48 extern struct domain __CONCAT(x,domain); \ 49 __CONCAT(x,domain.dom_next) = domains; \ 50 domains = &__CONCAT(x,domain); \ 51 } 52 53 void pffasttimo __P((void *)); 54 void pfslowtimo __P((void *)); 55 56 void 57 domaininit() 58 { 59 register struct domain *dp; 60 register struct protosw *pr; 61 62 #undef unix 63 #ifndef lint 64 ADDDOMAIN(unix); 65 ADDDOMAIN(route); 66 #ifdef INET 67 ADDDOMAIN(inet); 68 #endif 69 #ifdef NS 70 ADDDOMAIN(ns); 71 #endif 72 #ifdef ISO 73 ADDDOMAIN(iso); 74 #endif 75 #ifdef RMP 76 ADDDOMAIN(rmp); 77 #endif 78 #ifdef CCITT 79 ADDDOMAIN(ccitt); 80 #endif 81 #ifdef IMP 82 ADDDOMAIN(imp); 83 #endif 84 #endif 85 86 for (dp = domains; dp; dp = dp->dom_next) { 87 if (dp->dom_init) 88 (*dp->dom_init)(); 89 for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++) 90 if (pr->pr_init) 91 (*pr->pr_init)(); 92 } 93 94 if (max_linkhdr < 16) /* XXX */ 95 max_linkhdr = 16; 96 max_hdr = max_linkhdr + max_protohdr; 97 max_datalen = MHLEN - max_hdr; 98 timeout(pffasttimo, (caddr_t)0, 1); 99 timeout(pfslowtimo, (caddr_t)0, 1); 100 } 101 102 struct protosw * 103 pffindtype(family, type) 104 int family, type; 105 { 106 register struct domain *dp; 107 register struct protosw *pr; 108 109 for (dp = domains; dp; dp = dp->dom_next) 110 if (dp->dom_family == family) 111 goto found; 112 return (0); 113 found: 114 for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++) 115 if (pr->pr_type && pr->pr_type == type) 116 return (pr); 117 return (0); 118 } 119 120 struct protosw * 121 pffindproto(family, protocol, type) 122 int family, protocol, type; 123 { 124 register struct domain *dp; 125 register struct protosw *pr; 126 struct protosw *maybe = 0; 127 128 if (family == 0) 129 return (0); 130 for (dp = domains; dp; dp = dp->dom_next) 131 if (dp->dom_family == family) 132 goto found; 133 return (0); 134 found: 135 for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++) { 136 if ((pr->pr_protocol == protocol) && (pr->pr_type == type)) 137 return (pr); 138 139 if (type == SOCK_RAW && pr->pr_type == SOCK_RAW && 140 pr->pr_protocol == 0 && maybe == (struct protosw *)0) 141 maybe = pr; 142 } 143 return (maybe); 144 } 145 146 void 147 pfctlinput(cmd, sa) 148 int cmd; 149 struct sockaddr *sa; 150 { 151 register struct domain *dp; 152 register struct protosw *pr; 153 154 for (dp = domains; dp; dp = dp->dom_next) 155 for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++) 156 if (pr->pr_ctlinput) 157 (*pr->pr_ctlinput)(cmd, sa, (caddr_t) 0); 158 } 159 160 /* ARGSUSED */ 161 void 162 pfslowtimo(arg) 163 void *arg; 164 { 165 register struct domain *dp; 166 register struct protosw *pr; 167 168 for (dp = domains; dp; dp = dp->dom_next) 169 for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++) 170 if (pr->pr_slowtimo) 171 (*pr->pr_slowtimo)(); 172 timeout(pfslowtimo, (caddr_t)0, hz/2); 173 } 174 175 /* ARGSUSED */ 176 void 177 pffasttimo(arg) 178 void *arg; 179 { 180 register struct domain *dp; 181 register struct protosw *pr; 182 183 for (dp = domains; dp; dp = dp->dom_next) 184 for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++) 185 if (pr->pr_fasttimo) 186 (*pr->pr_fasttimo)(); 187 timeout(pffasttimo, (caddr_t)0, hz/5); 188 } 189
Indexes created Tue Sep 23 21:09:50 GMT 2025