uipc_domain.c revision 1.11
1 /* 2 * Copyright (c) 1982, 1986, 1993 3 * The Regents of the University of California. 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 8.2 (Berkeley) 10/18/93 34 * $Id: uipc_domain.c,v 1.11 1994/05/13 06:01:30 mycroft Exp $ 35 */ 36 37 #include <sys/param.h> 38 #include <sys/socket.h> 39 #include <sys/protosw.h> 40 #include <sys/domain.h> 41 #include <sys/mbuf.h> 42 #include <sys/time.h> 43 #include <sys/kernel.h> 44 #include <sys/systm.h> 45 #include <sys/proc.h> 46 #include <vm/vm.h> 47 #include <sys/sysctl.h> 48 49 void pffasttimo __P((void *)); 50 void pfslowtimo __P((void *)); 51 52 #define ADDDOMAIN(x) { \ 53 extern struct domain __CONCAT(x,domain); \ 54 __CONCAT(x,domain.dom_next) = domains; \ 55 domains = &__CONCAT(x,domain); \ 56 } 57 58 void 59 domaininit() 60 { 61 register struct domain *dp; 62 register struct protosw *pr; 63 64 #undef unix 65 #ifndef lint 66 ADDDOMAIN(unix); 67 ADDDOMAIN(route); 68 #ifdef INET 69 ADDDOMAIN(inet); 70 #endif 71 #ifdef NS 72 ADDDOMAIN(ns); 73 #endif 74 #ifdef ISO 75 ADDDOMAIN(iso); 76 #endif 77 #ifdef CCITT 78 ADDDOMAIN(ccitt); 79 #endif 80 #ifdef notdef /* XXXX */ 81 #include "imp.h" 82 #if NIMP > 0 83 ADDDOMAIN(imp); 84 #endif 85 #endif 86 #endif 87 88 for (dp = domains; dp; dp = dp->dom_next) { 89 if (dp->dom_init) 90 (*dp->dom_init)(); 91 for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++) 92 if (pr->pr_init) 93 (*pr->pr_init)(); 94 } 95 96 if (max_linkhdr < 16) /* XXX */ 97 max_linkhdr = 16; 98 max_hdr = max_linkhdr + max_protohdr; 99 max_datalen = MHLEN - max_hdr; 100 timeout(pffasttimo, NULL, 1); 101 timeout(pfslowtimo, NULL, 1); 102 } 103 104 struct protosw * 105 pffindtype(family, type) 106 int family, type; 107 { 108 register struct domain *dp; 109 register struct protosw *pr; 110 111 for (dp = domains; dp; dp = dp->dom_next) 112 if (dp->dom_family == family) 113 goto found; 114 return (0); 115 found: 116 for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++) 117 if (pr->pr_type && pr->pr_type == type) 118 return (pr); 119 return (0); 120 } 121 122 struct protosw * 123 pffindproto(family, protocol, type) 124 int family, protocol, type; 125 { 126 register struct domain *dp; 127 register struct protosw *pr; 128 struct protosw *maybe = 0; 129 130 if (family == 0) 131 return (0); 132 for (dp = domains; dp; dp = dp->dom_next) 133 if (dp->dom_family == family) 134 goto found; 135 return (0); 136 found: 137 for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++) { 138 if ((pr->pr_protocol == protocol) && (pr->pr_type == type)) 139 return (pr); 140 141 if (type == SOCK_RAW && pr->pr_type == SOCK_RAW && 142 pr->pr_protocol == 0 && maybe == (struct protosw *)0) 143 maybe = pr; 144 } 145 return (maybe); 146 } 147 148 int 149 net_sysctl(name, namelen, oldp, oldlenp, newp, newlen, p) 150 int *name; 151 u_int namelen; 152 void *oldp; 153 size_t *oldlenp; 154 void *newp; 155 size_t newlen; 156 struct proc *p; 157 { 158 register struct domain *dp; 159 register struct protosw *pr; 160 int family, protocol; 161 162 /* 163 * All sysctl names at this level are nonterminal; 164 * next two components are protocol family and protocol number, 165 * then at least one addition component. 166 */ 167 if (namelen < 3) 168 return (EISDIR); /* overloaded */ 169 family = name[0]; 170 protocol = name[1]; 171 172 if (family == 0) 173 return (0); 174 for (dp = domains; dp; dp = dp->dom_next) 175 if (dp->dom_family == family) 176 goto found; 177 return (ENOPROTOOPT); 178 found: 179 for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++) 180 if (pr->pr_protocol == protocol && pr->pr_sysctl) 181 return ((*pr->pr_sysctl)(name + 2, namelen - 2, 182 oldp, oldlenp, newp, newlen)); 183 return (ENOPROTOOPT); 184 } 185 186 void 187 pfctlinput(cmd, sa) 188 int cmd; 189 struct sockaddr *sa; 190 { 191 register struct domain *dp; 192 register struct protosw *pr; 193 194 for (dp = domains; dp; dp = dp->dom_next) 195 for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++) 196 if (pr->pr_ctlinput) 197 (*pr->pr_ctlinput)(cmd, sa, (caddr_t)0); 198 } 199 200 void 201 pfslowtimo(arg) 202 void *arg; 203 { 204 register struct domain *dp; 205 register struct protosw *pr; 206 207 for (dp = domains; dp; dp = dp->dom_next) 208 for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++) 209 if (pr->pr_slowtimo) 210 (*pr->pr_slowtimo)(); 211 timeout(pfslowtimo, NULL, hz/2); 212 } 213 214 void 215 pffasttimo(arg) 216 void *arg; 217 { 218 register struct domain *dp; 219 register struct protosw *pr; 220 221 for (dp = domains; dp; dp = dp->dom_next) 222 for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++) 223 if (pr->pr_fasttimo) 224 (*pr->pr_fasttimo)(); 225 timeout(pffasttimo, NULL, hz/5); 226 } 227
Indexes created Tue Sep 23 07:09:52 GMT 2025