uipc_domain.c revision 1.19
1 /* $NetBSD: uipc_domain.c,v 1.19 1998/05/06 01:11:46 thorpej 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 <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 /* 54 * Current time values for fast and slow timeouts. We can use u_int 55 * relatively safely. The fast timer will roll over in 27 years and 56 * the slow timer in 68 years. 57 */ 58 u_int pfslowtimo_now; 59 u_int pffasttimo_now; 60 61 #define ADDDOMAIN(x) { \ 62 extern struct domain __CONCAT(x,domain); \ 63 __CONCAT(x,domain.dom_next) = domains; \ 64 domains = &__CONCAT(x,domain); \ 65 } 66 67 void 68 domaininit() 69 { 70 register struct domain *dp; 71 register struct protosw *pr; 72 73 #undef unix 74 #ifndef lint 75 ADDDOMAIN(unix); 76 ADDDOMAIN(route); 77 #ifdef INET 78 ADDDOMAIN(inet); 79 #endif 80 #ifdef NS 81 ADDDOMAIN(ns); 82 #endif 83 #ifdef ISO 84 ADDDOMAIN(iso); 85 #endif 86 #ifdef CCITT 87 ADDDOMAIN(ccitt); 88 #endif 89 #ifdef NATM 90 ADDDOMAIN(natm); 91 #endif 92 #ifdef NETATALK 93 ADDDOMAIN(atalk); 94 #endif 95 #ifdef notdef /* XXXX */ 96 #include "imp.h" 97 #if NIMP > 0 98 ADDDOMAIN(imp); 99 #endif 100 #endif 101 #endif 102 103 for (dp = domains; dp; dp = dp->dom_next) { 104 if (dp->dom_init) 105 (*dp->dom_init)(); 106 for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++) 107 if (pr->pr_init) 108 (*pr->pr_init)(); 109 } 110 111 if (max_linkhdr < 16) /* XXX */ 112 max_linkhdr = 16; 113 max_hdr = max_linkhdr + max_protohdr; 114 max_datalen = MHLEN - max_hdr; 115 timeout(pffasttimo, NULL, 1); 116 timeout(pfslowtimo, NULL, 1); 117 } 118 119 struct protosw * 120 pffindtype(family, type) 121 int family, type; 122 { 123 register struct domain *dp; 124 register struct protosw *pr; 125 126 for (dp = domains; dp; dp = dp->dom_next) 127 if (dp->dom_family == family) 128 goto found; 129 return (0); 130 found: 131 for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++) 132 if (pr->pr_type && pr->pr_type == type) 133 return (pr); 134 return (0); 135 } 136 137 struct protosw * 138 pffindproto(family, protocol, type) 139 int family, protocol, type; 140 { 141 register struct domain *dp; 142 register struct protosw *pr; 143 struct protosw *maybe = 0; 144 145 if (family == 0) 146 return (0); 147 for (dp = domains; dp; dp = dp->dom_next) 148 if (dp->dom_family == family) 149 goto found; 150 return (0); 151 found: 152 for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++) { 153 if ((pr->pr_protocol == protocol) && (pr->pr_type == type)) 154 return (pr); 155 156 if (type == SOCK_RAW && pr->pr_type == SOCK_RAW && 157 pr->pr_protocol == 0 && maybe == (struct protosw *)0) 158 maybe = pr; 159 } 160 return (maybe); 161 } 162 163 int 164 net_sysctl(name, namelen, oldp, oldlenp, newp, newlen, p) 165 int *name; 166 u_int namelen; 167 void *oldp; 168 size_t *oldlenp; 169 void *newp; 170 size_t newlen; 171 struct proc *p; 172 { 173 register struct domain *dp; 174 register struct protosw *pr; 175 int family, protocol; 176 177 /* 178 * All sysctl names at this level are nonterminal; 179 * next two components are protocol family and protocol number, 180 * then at least one addition component. 181 */ 182 if (namelen < 3) 183 return (EISDIR); /* overloaded */ 184 family = name[0]; 185 protocol = name[1]; 186 187 if (family == 0) 188 return (0); 189 for (dp = domains; dp; dp = dp->dom_next) 190 if (dp->dom_family == family) 191 goto found; 192 return (ENOPROTOOPT); 193 found: 194 for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++) 195 if (pr->pr_protocol == protocol && pr->pr_sysctl) 196 return ((*pr->pr_sysctl)(name + 2, namelen - 2, 197 oldp, oldlenp, newp, newlen)); 198 return (ENOPROTOOPT); 199 } 200 201 void 202 pfctlinput(cmd, sa) 203 int cmd; 204 struct sockaddr *sa; 205 { 206 register struct domain *dp; 207 register struct protosw *pr; 208 209 for (dp = domains; dp; dp = dp->dom_next) 210 for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++) 211 if (pr->pr_ctlinput) 212 (*pr->pr_ctlinput)(cmd, sa, NULL); 213 } 214 215 void 216 pfslowtimo(arg) 217 void *arg; 218 { 219 register struct domain *dp; 220 register struct protosw *pr; 221 222 pfslowtimo_now++; 223 224 for (dp = domains; dp; dp = dp->dom_next) 225 for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++) 226 if (pr->pr_slowtimo) 227 (*pr->pr_slowtimo)(); 228 timeout(pfslowtimo, NULL, hz/2); 229 } 230 231 void 232 pffasttimo(arg) 233 void *arg; 234 { 235 register struct domain *dp; 236 register struct protosw *pr; 237 238 pffasttimo_now++; 239 240 for (dp = domains; dp; dp = dp->dom_next) 241 for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++) 242 if (pr->pr_fasttimo) 243 (*pr->pr_fasttimo)(); 244 timeout(pffasttimo, NULL, hz/5); 245 } 246
Indexes created Tue Sep 23 02:09:52 GMT 2025