uipc_domain.c revision 1.28
1 /* $NetBSD: uipc_domain.c,v 1.28 1999/08/05 04:04:28 sommerfeld 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_ipsec.h" 40 #include "opt_atalk.h" 41 #include "opt_ccitt.h" 42 #include "opt_iso.h" 43 #include "opt_ns.h" 44 #include "opt_natm.h" 45 #include "arp.h" 46 47 #include <sys/param.h> 48 #include <sys/socket.h> 49 #include <sys/protosw.h> 50 #include <sys/domain.h> 51 #include <sys/mbuf.h> 52 #include <sys/time.h> 53 #include <sys/kernel.h> 54 #include <sys/systm.h> 55 #include <sys/proc.h> 56 #include <vm/vm.h> 57 #include <sys/sysctl.h> 58 59 void pffasttimo __P((void *)); 60 void pfslowtimo __P((void *)); 61 62 /* 63 * Current time values for fast and slow timeouts. We can use u_int 64 * relatively safely. The fast timer will roll over in 27 years and 65 * the slow timer in 68 years. 66 */ 67 u_int pfslowtimo_now; 68 u_int pffasttimo_now; 69 70 #define ADDDOMAIN(x) { \ 71 extern struct domain __CONCAT(x,domain); \ 72 __CONCAT(x,domain.dom_next) = domains; \ 73 domains = &__CONCAT(x,domain); \ 74 } 75 76 void 77 domaininit() 78 { 79 register struct domain *dp; 80 register struct protosw *pr; 81 82 #undef unix 83 /* 84 * KAME NOTE: ADDDOMAIN(route) is moved to the last part so that 85 * it will be initialized as the *first* element. confusing! 86 */ 87 #ifndef lint 88 ADDDOMAIN(unix); 89 #ifdef INET 90 ADDDOMAIN(inet); 91 #endif 92 #ifdef INET6 93 ADDDOMAIN(inet6); 94 #endif 95 #ifdef NS 96 ADDDOMAIN(ns); 97 #endif 98 #ifdef ISO 99 ADDDOMAIN(iso); 100 #endif 101 #ifdef CCITT 102 ADDDOMAIN(ccitt); 103 #endif 104 #ifdef NATM 105 ADDDOMAIN(natm); 106 #endif 107 #ifdef NETATALK 108 ADDDOMAIN(atalk); 109 #endif 110 #ifdef IPSEC 111 ADDDOMAIN(key); 112 #endif 113 #if NARP > 0 114 ADDDOMAIN(arp); 115 #endif 116 ADDDOMAIN(route); 117 #endif /* ! lint */ 118 119 for (dp = domains; dp; dp = dp->dom_next) { 120 if (dp->dom_init) 121 (*dp->dom_init)(); 122 for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++) 123 if (pr->pr_init) 124 (*pr->pr_init)(); 125 } 126 127 if (max_linkhdr < 16) /* XXX */ 128 max_linkhdr = 16; 129 max_hdr = max_linkhdr + max_protohdr; 130 max_datalen = MHLEN - max_hdr; 131 timeout(pffasttimo, NULL, 1); 132 timeout(pfslowtimo, NULL, 1); 133 } 134 135 struct protosw * 136 pffindtype(family, type) 137 int family, type; 138 { 139 register struct domain *dp; 140 register struct protosw *pr; 141 142 for (dp = domains; dp; dp = dp->dom_next) 143 if (dp->dom_family == family) 144 goto found; 145 return (0); 146 found: 147 for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++) 148 if (pr->pr_type && pr->pr_type == type) 149 return (pr); 150 return (0); 151 } 152 153 struct protosw * 154 pffindproto(family, protocol, type) 155 int family, protocol, type; 156 { 157 register struct domain *dp; 158 register struct protosw *pr; 159 struct protosw *maybe = 0; 160 161 if (family == 0) 162 return (0); 163 for (dp = domains; dp; dp = dp->dom_next) 164 if (dp->dom_family == family) 165 goto found; 166 return (0); 167 found: 168 for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++) { 169 if ((pr->pr_protocol == protocol) && (pr->pr_type == type)) 170 return (pr); 171 172 if (type == SOCK_RAW && pr->pr_type == SOCK_RAW && 173 pr->pr_protocol == 0 && maybe == (struct protosw *)0) 174 maybe = pr; 175 } 176 return (maybe); 177 } 178 179 int 180 net_sysctl(name, namelen, oldp, oldlenp, newp, newlen, p) 181 int *name; 182 u_int namelen; 183 void *oldp; 184 size_t *oldlenp; 185 void *newp; 186 size_t newlen; 187 struct proc *p; 188 { 189 register struct domain *dp; 190 register struct protosw *pr; 191 int family, protocol; 192 193 /* 194 * All sysctl names at this level are nonterminal. 195 * PF_KEY: next component is protocol family, and then at least one 196 * additional component. 197 * usually: next two components are protocol family and protocol 198 * number, then at least one addition component. 199 */ 200 if (namelen < 2) 201 return (EISDIR); /* overloaded */ 202 family = name[0]; 203 204 if (family == 0) 205 return (0); 206 for (dp = domains; dp; dp = dp->dom_next) 207 if (dp->dom_family == family) 208 goto found; 209 return (ENOPROTOOPT); 210 found: 211 switch (family) { 212 #ifdef IPSEC 213 case PF_KEY: 214 pr = dp->dom_protosw; 215 if (pr->pr_sysctl) 216 return ((*pr->pr_sysctl)(name + 1, namelen - 1, 217 oldp, oldlenp, newp, newlen)); 218 return (ENOPROTOOPT); 219 #endif 220 default: 221 break; 222 } 223 if (namelen < 3) 224 return (EISDIR); /* overloaded */ 225 protocol = name[1]; 226 for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++) 227 if (pr->pr_protocol == protocol && pr->pr_sysctl) 228 return ((*pr->pr_sysctl)(name + 2, namelen - 2, 229 oldp, oldlenp, newp, newlen)); 230 return (ENOPROTOOPT); 231 } 232 233 void 234 pfctlinput(cmd, sa) 235 int cmd; 236 struct sockaddr *sa; 237 { 238 register struct domain *dp; 239 register struct protosw *pr; 240 241 for (dp = domains; dp; dp = dp->dom_next) 242 for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++) 243 if (pr->pr_ctlinput) 244 (*pr->pr_ctlinput)(cmd, sa, NULL); 245 } 246 247 void 248 pfslowtimo(arg) 249 void *arg; 250 { 251 register struct domain *dp; 252 register struct protosw *pr; 253 254 pfslowtimo_now++; 255 256 for (dp = domains; dp; dp = dp->dom_next) 257 for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++) 258 if (pr->pr_slowtimo) 259 (*pr->pr_slowtimo)(); 260 timeout(pfslowtimo, NULL, hz/2); 261 } 262 263 void 264 pffasttimo(arg) 265 void *arg; 266 { 267 register struct domain *dp; 268 register struct protosw *pr; 269 270 pffasttimo_now++; 271 272 for (dp = domains; dp; dp = dp->dom_next) 273 for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++) 274 if (pr->pr_fasttimo) 275 (*pr->pr_fasttimo)(); 276 timeout(pffasttimo, NULL, hz/5); 277 } 278
Indexes created Thu Sep 25 16:09:42 GMT 2025