uipc_domain.c revision 1.24
1 /* $NetBSD: uipc_domain.c,v 1.24 1998/07/05 22:48:07 jonathan 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 8.3 (Berkeley) 2/14/95 36 */ 37 38 #include "opt_inet.h" 39 #include "opt_atalk.h" 40 #include "opt_ccitt.h" 41 #include "opt_iso.h" 42 #include "opt_ns.h" 43 #include "opt_natm.h" 44 45 #include <sys/param.h> 46 #include <sys/socket.h> 47 #include <sys/protosw.h> 48 #include <sys/domain.h> 49 #include <sys/mbuf.h> 50 #include <sys/time.h> 51 #include <sys/kernel.h> 52 #include <sys/systm.h> 53 #include <sys/proc.h> 54 #include <vm/vm.h> 55 #include <sys/sysctl.h> 56 57 void pffasttimo __P((void *)); 58 void pfslowtimo __P((void *)); 59 60 /* 61 * Current time values for fast and slow timeouts. We can use u_int 62 * relatively safely. The fast timer will roll over in 27 years and 63 * the slow timer in 68 years. 64 */ 65 u_int pfslowtimo_now; 66 u_int pffasttimo_now; 67 68 #define ADDDOMAIN(x) { \ 69 extern struct domain __CONCAT(x,domain); \ 70 __CONCAT(x,domain.dom_next) = domains; \ 71 domains = &__CONCAT(x,domain); \ 72 } 73 74 void 75 domaininit() 76 { 77 register struct domain *dp; 78 register struct protosw *pr; 79 80 #undef unix 81 #ifndef lint 82 ADDDOMAIN(unix); 83 ADDDOMAIN(route); 84 #ifdef INET 85 ADDDOMAIN(inet); 86 #endif 87 #ifdef NS 88 ADDDOMAIN(ns); 89 #endif 90 #ifdef ISO 91 ADDDOMAIN(iso); 92 #endif 93 #ifdef CCITT 94 ADDDOMAIN(ccitt); 95 #endif 96 #ifdef NATM 97 ADDDOMAIN(natm); 98 #endif 99 #ifdef NETATALK 100 ADDDOMAIN(atalk); 101 #endif 102 #ifdef notdef /* XXXX */ 103 #include "imp.h" 104 #if NIMP > 0 105 ADDDOMAIN(imp); 106 #endif 107 #endif 108 #endif 109 110 for (dp = domains; dp; dp = dp->dom_next) { 111 if (dp->dom_init) 112 (*dp->dom_init)(); 113 for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++) 114 if (pr->pr_init) 115 (*pr->pr_init)(); 116 } 117 118 if (max_linkhdr < 16) /* XXX */ 119 max_linkhdr = 16; 120 max_hdr = max_linkhdr + max_protohdr; 121 max_datalen = MHLEN - max_hdr; 122 timeout(pffasttimo, NULL, 1); 123 timeout(pfslowtimo, NULL, 1); 124 } 125 126 struct protosw * 127 pffindtype(family, type) 128 int family, type; 129 { 130 register struct domain *dp; 131 register struct protosw *pr; 132 133 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_type && pr->pr_type == type) 140 return (pr); 141 return (0); 142 } 143 144 struct protosw * 145 pffindproto(family, protocol, type) 146 int family, protocol, type; 147 { 148 register struct domain *dp; 149 register struct protosw *pr; 150 struct protosw *maybe = 0; 151 152 if (family == 0) 153 return (0); 154 for (dp = domains; dp; dp = dp->dom_next) 155 if (dp->dom_family == family) 156 goto found; 157 return (0); 158 found: 159 for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++) { 160 if ((pr->pr_protocol == protocol) && (pr->pr_type == type)) 161 return (pr); 162 163 if (type == SOCK_RAW && pr->pr_type == SOCK_RAW && 164 pr->pr_protocol == 0 && maybe == (struct protosw *)0) 165 maybe = pr; 166 } 167 return (maybe); 168 } 169 170 int 171 net_sysctl(name, namelen, oldp, oldlenp, newp, newlen, p) 172 int *name; 173 u_int namelen; 174 void *oldp; 175 size_t *oldlenp; 176 void *newp; 177 size_t newlen; 178 struct proc *p; 179 { 180 register struct domain *dp; 181 register struct protosw *pr; 182 int family, protocol; 183 184 /* 185 * All sysctl names at this level are nonterminal; 186 * next two components are protocol family and protocol number, 187 * then at least one addition component. 188 */ 189 if (namelen < 3) 190 return (EISDIR); /* overloaded */ 191 family = name[0]; 192 protocol = name[1]; 193 194 if (family == 0) 195 return (0); 196 for (dp = domains; dp; dp = dp->dom_next) 197 if (dp->dom_family == family) 198 goto found; 199 return (ENOPROTOOPT); 200 found: 201 for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++) 202 if (pr->pr_protocol == protocol && pr->pr_sysctl) 203 return ((*pr->pr_sysctl)(name + 2, namelen - 2, 204 oldp, oldlenp, newp, newlen)); 205 return (ENOPROTOOPT); 206 } 207 208 void 209 pfctlinput(cmd, sa) 210 int cmd; 211 struct sockaddr *sa; 212 { 213 register struct domain *dp; 214 register struct protosw *pr; 215 216 for (dp = domains; dp; dp = dp->dom_next) 217 for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++) 218 if (pr->pr_ctlinput) 219 (*pr->pr_ctlinput)(cmd, sa, NULL); 220 } 221 222 void 223 pfslowtimo(arg) 224 void *arg; 225 { 226 register struct domain *dp; 227 register struct protosw *pr; 228 229 pfslowtimo_now++; 230 231 for (dp = domains; dp; dp = dp->dom_next) 232 for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++) 233 if (pr->pr_slowtimo) 234 (*pr->pr_slowtimo)(); 235 timeout(pfslowtimo, NULL, hz/2); 236 } 237 238 void 239 pffasttimo(arg) 240 void *arg; 241 { 242 register struct domain *dp; 243 register struct protosw *pr; 244 245 pffasttimo_now++; 246 247 for (dp = domains; dp; dp = dp->dom_next) 248 for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++) 249 if (pr->pr_fasttimo) 250 (*pr->pr_fasttimo)(); 251 timeout(pffasttimo, NULL, hz/5); 252 } 253
Indexes created Fri Sep 26 20:09:58 GMT 2025