uipc_domain.c revision 1.14
1 /* $NetBSD: uipc_domain.c,v 1.14 1996/02/09 19:00:44 christos Exp $ */ 2 3 /* 4 * Copyright (c) 1982, 1986, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by the University of 18 * California, Berkeley and its contributors. 19 * 4. Neither the name of the University nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 * 35 * @(#)uipc_domain.c 8.2 (Berkeley) 10/18/93 36 */ 37 38 #include <sys/param.h> 39 #include <sys/socket.h> 40 #include <sys/protosw.h> 41 #include <sys/domain.h> 42 #include <sys/mbuf.h> 43 #include <sys/time.h> 44 #include <sys/kernel.h> 45 #include <sys/systm.h> 46 #include <sys/proc.h> 47 #include <vm/vm.h> 48 #include <sys/sysctl.h> 49 50 void pffasttimo __P((void *)); 51 void pfslowtimo __P((void *)); 52 53 #define ADDDOMAIN(x) { \ 54 extern struct domain __CONCAT(x,domain); \ 55 __CONCAT(x,domain.dom_next) = domains; \ 56 domains = &__CONCAT(x,domain); \ 57 } 58 59 void 60 domaininit() 61 { 62 register struct domain *dp; 63 register struct protosw *pr; 64 65 #undef unix 66 #ifndef lint 67 ADDDOMAIN(unix); 68 ADDDOMAIN(route); 69 #ifdef INET 70 ADDDOMAIN(inet); 71 #endif 72 #ifdef NS 73 ADDDOMAIN(ns); 74 #endif 75 #ifdef ISO 76 ADDDOMAIN(iso); 77 #endif 78 #ifdef CCITT 79 ADDDOMAIN(ccitt); 80 #endif 81 #ifdef notdef /* XXXX */ 82 #include "imp.h" 83 #if NIMP > 0 84 ADDDOMAIN(imp); 85 #endif 86 #endif 87 #endif 88 89 for (dp = domains; dp; dp = dp->dom_next) { 90 if (dp->dom_init) 91 (*dp->dom_init)(); 92 for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++) 93 if (pr->pr_init) 94 (*pr->pr_init)(); 95 } 96 97 if (max_linkhdr < 16) /* XXX */ 98 max_linkhdr = 16; 99 max_hdr = max_linkhdr + max_protohdr; 100 max_datalen = MHLEN - max_hdr; 101 timeout(pffasttimo, NULL, 1); 102 timeout(pfslowtimo, NULL, 1); 103 } 104 105 struct protosw * 106 pffindtype(family, type) 107 int family, type; 108 { 109 register struct domain *dp; 110 register struct protosw *pr; 111 112 for (dp = domains; dp; dp = dp->dom_next) 113 if (dp->dom_family == family) 114 goto found; 115 return (0); 116 found: 117 for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++) 118 if (pr->pr_type && pr->pr_type == type) 119 return (pr); 120 return (0); 121 } 122 123 struct protosw * 124 pffindproto(family, protocol, type) 125 int family, protocol, type; 126 { 127 register struct domain *dp; 128 register struct protosw *pr; 129 struct protosw *maybe = 0; 130 131 if (family == 0) 132 return (0); 133 for (dp = domains; dp; dp = dp->dom_next) 134 if (dp->dom_family == family) 135 goto found; 136 return (0); 137 found: 138 for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++) { 139 if ((pr->pr_protocol == protocol) && (pr->pr_type == type)) 140 return (pr); 141 142 if (type == SOCK_RAW && pr->pr_type == SOCK_RAW && 143 pr->pr_protocol == 0 && maybe == (struct protosw *)0) 144 maybe = pr; 145 } 146 return (maybe); 147 } 148 149 int 150 net_sysctl(name, namelen, oldp, oldlenp, newp, newlen, p) 151 int *name; 152 u_int namelen; 153 void *oldp; 154 size_t *oldlenp; 155 void *newp; 156 size_t newlen; 157 struct proc *p; 158 { 159 register struct domain *dp; 160 register struct protosw *pr; 161 int family, protocol; 162 163 /* 164 * All sysctl names at this level are nonterminal; 165 * next two components are protocol family and protocol number, 166 * then at least one addition component. 167 */ 168 if (namelen < 3) 169 return (EISDIR); /* overloaded */ 170 family = name[0]; 171 protocol = name[1]; 172 173 if (family == 0) 174 return (0); 175 for (dp = domains; dp; dp = dp->dom_next) 176 if (dp->dom_family == family) 177 goto found; 178 return (ENOPROTOOPT); 179 found: 180 for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++) 181 if (pr->pr_protocol == protocol && pr->pr_sysctl) 182 return ((*pr->pr_sysctl)(name + 2, namelen - 2, 183 oldp, oldlenp, newp, newlen)); 184 return (ENOPROTOOPT); 185 } 186 187 void 188 pfctlinput(cmd, sa) 189 int cmd; 190 struct sockaddr *sa; 191 { 192 register struct domain *dp; 193 register struct protosw *pr; 194 195 for (dp = domains; dp; dp = dp->dom_next) 196 for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++) 197 if (pr->pr_ctlinput) 198 (*pr->pr_ctlinput)(cmd, sa, NULL); 199 } 200 201 void 202 pfslowtimo(arg) 203 void *arg; 204 { 205 register struct domain *dp; 206 register struct protosw *pr; 207 208 for (dp = domains; dp; dp = dp->dom_next) 209 for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++) 210 if (pr->pr_slowtimo) 211 (*pr->pr_slowtimo)(); 212 timeout(pfslowtimo, NULL, hz/2); 213 } 214 215 void 216 pffasttimo(arg) 217 void *arg; 218 { 219 register struct domain *dp; 220 register struct protosw *pr; 221 222 for (dp = domains; dp; dp = dp->dom_next) 223 for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++) 224 if (pr->pr_fasttimo) 225 (*pr->pr_fasttimo)(); 226 timeout(pffasttimo, NULL, hz/5); 227 } 228
Indexes created Sat Oct 11 14:09:46 GMT 2025