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 * @(#)uipc_domain.c 8.2 (Berkeley) 10/18/93
| 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 * @(#)uipc_domain.c 8.2 (Berkeley) 10/18/93
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34 * $Id: uipc_domain.c,v 1.17 1997/04/27 20:00:42 wollman Exp $
| 34 * $Id: uipc_domain.c,v 1.18 1997/09/16 11:43:36 bde Exp $
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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/kernel.h>
| 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/kernel.h>
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| 43#include <sys/socketvar.h>
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43#include <sys/systm.h>
| 44#include <sys/systm.h>
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| 45#include <vm/vm_zone.h>
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44 45/* 46 * System initialization 47 * 48 * Note: domain initialization wants to take place on a per domain basis 49 * as a result of traversing a linker set. Most likely, each domain 50 * want to call a registration function rather than being handled here 51 * in domaininit(). Probably this will look like: 52 * 53 * SYSINIT(unique, SI_SUB_PROTO_DOMAI, SI_ORDER_ANY, domain_add, xxx) 54 * 55 * Where 'xxx' is replaced by the address of a parameter struct to be 56 * passed to the doamin_add() function. 57 */ 58 59static int x_save_spl; /* used by kludge*/ 60static void kludge_splimp __P((void *)); 61static void kludge_splx __P((void *)); 62static void domaininit __P((void *)); 63SYSINIT(splimp, SI_SUB_PROTO_BEGIN, SI_ORDER_FIRST, kludge_splimp, &x_save_spl) 64SYSINIT(domain, SI_SUB_PROTO_DOMAIN, SI_ORDER_FIRST, domaininit, NULL) 65SYSINIT(splx, SI_SUB_PROTO_END, SI_ORDER_FIRST, kludge_splx, &x_save_spl) 66 67static void pffasttimo __P((void *)); 68static void pfslowtimo __P((void *)); 69 70struct domain *domains; 71 72#define ADDDOMAIN(x) { \ 73 __CONCAT(x,domain.dom_next) = domains; \ 74 domains = &__CONCAT(x,domain); \ 75} 76 77extern struct linker_set domain_set; 78 79/* ARGSUSED*/ 80static void 81domaininit(dummy) 82 void *dummy; 83{ 84 register struct domain *dp, **dpp; 85 register struct protosw *pr; 86 87 /*
| 46 47/* 48 * System initialization 49 * 50 * Note: domain initialization wants to take place on a per domain basis 51 * as a result of traversing a linker set. Most likely, each domain 52 * want to call a registration function rather than being handled here 53 * in domaininit(). Probably this will look like: 54 * 55 * SYSINIT(unique, SI_SUB_PROTO_DOMAI, SI_ORDER_ANY, domain_add, xxx) 56 * 57 * Where 'xxx' is replaced by the address of a parameter struct to be 58 * passed to the doamin_add() function. 59 */ 60 61static int x_save_spl; /* used by kludge*/ 62static void kludge_splimp __P((void *)); 63static void kludge_splx __P((void *)); 64static void domaininit __P((void *)); 65SYSINIT(splimp, SI_SUB_PROTO_BEGIN, SI_ORDER_FIRST, kludge_splimp, &x_save_spl) 66SYSINIT(domain, SI_SUB_PROTO_DOMAIN, SI_ORDER_FIRST, domaininit, NULL) 67SYSINIT(splx, SI_SUB_PROTO_END, SI_ORDER_FIRST, kludge_splx, &x_save_spl) 68 69static void pffasttimo __P((void *)); 70static void pfslowtimo __P((void *)); 71 72struct domain *domains; 73 74#define ADDDOMAIN(x) { \ 75 __CONCAT(x,domain.dom_next) = domains; \ 76 domains = &__CONCAT(x,domain); \ 77} 78 79extern struct linker_set domain_set; 80 81/* ARGSUSED*/ 82static void 83domaininit(dummy) 84 void *dummy; 85{ 86 register struct domain *dp, **dpp; 87 register struct protosw *pr; 88 89 /*
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| 90 * Before we do any setup, make sure to initialize the 91 * zone allocator we get struct sockets from. The obvious 92 * maximum number of sockets is `maxfiles', but it is possible 93 * to have a socket without an open file (e.g., a connection waiting 94 * to be accept(2)ed). Rather than think up and define a 95 * better value, we just use nmbclusters, since that's what people 96 * are told to increase first when the network runs out of memory. 97 * Perhaps we should have two pools, one of unlimited size 98 * for use during socreate(), and one ZONE_INTERRUPT pool for 99 * use in sonewconn(). 100 */ 101 socket_zone = zinit("socket", sizeof(struct socket), maxsockets, 102 ZONE_INTERRUPT, 0); 103 104 /*
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88 * NB - local domain is always present. 89 */ 90 ADDDOMAIN(local); 91 92 for (dpp = (struct domain **)domain_set.ls_items; *dpp; dpp++) { 93 (**dpp).dom_next = domains; 94 domains = *dpp; 95 } 96
| 105 * NB - local domain is always present. 106 */ 107 ADDDOMAIN(local); 108 109 for (dpp = (struct domain **)domain_set.ls_items; *dpp; dpp++) { 110 (**dpp).dom_next = domains; 111 domains = *dpp; 112 } 113
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97/* - not in our sources 98#ifdef ISDN 99 ADDDOMAIN(isdn); 100#endif 101*/ 102
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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++){
| 114 for (dp = domains; dp; dp = dp->dom_next) { 115 if (dp->dom_init) 116 (*dp->dom_init)(); 117 for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++){
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107#ifdef PRU_OLDSTYLE 108 /* See comments in uipc_socket2.c. */ 109 if (pr->pr_usrreqs == 0 && pr->pr_ousrreq) 110 pr->pr_usrreqs = &pru_oldstyle; 111#else
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112 if (pr->pr_usrreqs == 0) 113 panic("domaininit: %ssw[%d] has no usrreqs!", 114 dp->dom_name, 115 (int)(pr - dp->dom_protosw));
| 118 if (pr->pr_usrreqs == 0) 119 panic("domaininit: %ssw[%d] has no usrreqs!", 120 dp->dom_name, 121 (int)(pr - dp->dom_protosw));
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116#endif
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117 if (pr->pr_init) 118 (*pr->pr_init)(); 119 } 120 } 121 122 if (max_linkhdr < 16) /* XXX */ 123 max_linkhdr = 16; 124 max_hdr = max_linkhdr + max_protohdr; 125 max_datalen = MHLEN - max_hdr; 126 timeout(pffasttimo, (void *)0, 1); 127 timeout(pfslowtimo, (void *)0, 1); 128} 129 130 131/* 132 * The following two operations are kludge code. Most likely, they should 133 * be done as a "domainpreinit()" for the first function and then rolled 134 * in as the last act of "domaininit()" for the second. 135 * 136 * In point of fact, it is questionable why other initialization prior 137 * to this does not also take place at splimp by default. 138 */ 139static void 140kludge_splimp(udata) 141 void *udata; 142{ 143 int *savesplp = udata; 144 145 *savesplp = splimp(); 146} 147 148static void 149kludge_splx(udata) 150 void *udata; 151{ 152 int *savesplp = udata; 153
| 122 if (pr->pr_init) 123 (*pr->pr_init)(); 124 } 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, (void *)0, 1); 132 timeout(pfslowtimo, (void *)0, 1); 133} 134 135 136/* 137 * The following two operations are kludge code. Most likely, they should 138 * be done as a "domainpreinit()" for the first function and then rolled 139 * in as the last act of "domaininit()" for the second. 140 * 141 * In point of fact, it is questionable why other initialization prior 142 * to this does not also take place at splimp by default. 143 */ 144static void 145kludge_splimp(udata) 146 void *udata; 147{ 148 int *savesplp = udata; 149 150 *savesplp = splimp(); 151} 152 153static void 154kludge_splx(udata) 155 void *udata; 156{ 157 int *savesplp = udata; 158
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154 splx( *savesplp);
| 159 splx(*savesplp);
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155} 156 157 158 159struct protosw * 160pffindtype(family, type) 161 int family; 162 int type; 163{ 164 register struct domain *dp; 165 register struct protosw *pr; 166 167 for (dp = domains; dp; dp = dp->dom_next) 168 if (dp->dom_family == family) 169 goto found; 170 return (0); 171found: 172 for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++) 173 if (pr->pr_type && pr->pr_type == type) 174 return (pr); 175 return (0); 176} 177 178struct protosw * 179pffindproto(family, protocol, type) 180 int family; 181 int protocol; 182 int type; 183{ 184 register struct domain *dp; 185 register struct protosw *pr; 186 struct protosw *maybe = 0; 187 188 if (family == 0) 189 return (0); 190 for (dp = domains; dp; dp = dp->dom_next) 191 if (dp->dom_family == family) 192 goto found; 193 return (0); 194found: 195 for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++) { 196 if ((pr->pr_protocol == protocol) && (pr->pr_type == type)) 197 return (pr); 198 199 if (type == SOCK_RAW && pr->pr_type == SOCK_RAW && 200 pr->pr_protocol == 0 && maybe == (struct protosw *)0) 201 maybe = pr; 202 } 203 return (maybe); 204} 205 206void 207pfctlinput(cmd, sa) 208 int cmd; 209 struct sockaddr *sa; 210{ 211 register struct domain *dp; 212 register struct protosw *pr; 213 214 for (dp = domains; dp; dp = dp->dom_next) 215 for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++) 216 if (pr->pr_ctlinput) 217 (*pr->pr_ctlinput)(cmd, sa, (void *)0); 218} 219 220static void 221pfslowtimo(arg) 222 void *arg; 223{ 224 register struct domain *dp; 225 register struct protosw *pr; 226 227 for (dp = domains; dp; dp = dp->dom_next) 228 for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++) 229 if (pr->pr_slowtimo) 230 (*pr->pr_slowtimo)(); 231 timeout(pfslowtimo, (void *)0, hz/2); 232} 233 234static void 235pffasttimo(arg) 236 void *arg; 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_fasttimo) 244 (*pr->pr_fasttimo)(); 245 timeout(pffasttimo, (void *)0, hz/5); 246}
| 160} 161 162 163 164struct protosw * 165pffindtype(family, type) 166 int family; 167 int type; 168{ 169 register struct domain *dp; 170 register struct protosw *pr; 171 172 for (dp = domains; dp; dp = dp->dom_next) 173 if (dp->dom_family == family) 174 goto found; 175 return (0); 176found: 177 for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++) 178 if (pr->pr_type && pr->pr_type == type) 179 return (pr); 180 return (0); 181} 182 183struct protosw * 184pffindproto(family, protocol, type) 185 int family; 186 int protocol; 187 int type; 188{ 189 register struct domain *dp; 190 register struct protosw *pr; 191 struct protosw *maybe = 0; 192 193 if (family == 0) 194 return (0); 195 for (dp = domains; dp; dp = dp->dom_next) 196 if (dp->dom_family == family) 197 goto found; 198 return (0); 199found: 200 for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++) { 201 if ((pr->pr_protocol == protocol) && (pr->pr_type == type)) 202 return (pr); 203 204 if (type == SOCK_RAW && pr->pr_type == SOCK_RAW && 205 pr->pr_protocol == 0 && maybe == (struct protosw *)0) 206 maybe = pr; 207 } 208 return (maybe); 209} 210 211void 212pfctlinput(cmd, sa) 213 int cmd; 214 struct sockaddr *sa; 215{ 216 register struct domain *dp; 217 register struct protosw *pr; 218 219 for (dp = domains; dp; dp = dp->dom_next) 220 for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++) 221 if (pr->pr_ctlinput) 222 (*pr->pr_ctlinput)(cmd, sa, (void *)0); 223} 224 225static void 226pfslowtimo(arg) 227 void *arg; 228{ 229 register struct domain *dp; 230 register struct protosw *pr; 231 232 for (dp = domains; dp; dp = dp->dom_next) 233 for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++) 234 if (pr->pr_slowtimo) 235 (*pr->pr_slowtimo)(); 236 timeout(pfslowtimo, (void *)0, hz/2); 237} 238 239static void 240pffasttimo(arg) 241 void *arg; 242{ 243 register struct domain *dp; 244 register struct protosw *pr; 245 246 for (dp = domains; dp; dp = dp->dom_next) 247 for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++) 248 if (pr->pr_fasttimo) 249 (*pr->pr_fasttimo)(); 250 timeout(pffasttimo, (void *)0, hz/5); 251}
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