1 /* 2 * Copyright (c) 1982, 1986, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * %sccs.include.redist.c% 6 * 7 * @(#)uipc_domain.c 8.3 (Berkeley) 02/14/95 8 */ 9 10 #include <sys/param.h> 11 #include <sys/socket.h> 12 #include <sys/protosw.h> 13 #include <sys/domain.h> 14 #include <sys/mbuf.h> 15 #include <sys/time.h> 16 #include <sys/kernel.h> 17 #include <sys/systm.h> 18 #include <sys/proc.h> 19 #include <vm/vm.h> 20 #include <sys/sysctl.h> 21 22 void pffasttimo __P((void *)); 23 void pfslowtimo __P((void *)); 24 25 #define ADDDOMAIN(x) { \ 26 extern struct domain __CONCAT(x,domain); \ 27 __CONCAT(x,domain.dom_next) = domains; \ 28 domains = &__CONCAT(x,domain); \ 29 } 30 31 void 32 domaininit() 33 { 34 register struct domain *dp; 35 register struct protosw *pr; 36 37 #undef unix 38 #ifndef lint 39 ADDDOMAIN(unix); 40 ADDDOMAIN(route); 41 #ifdef INET 42 ADDDOMAIN(inet); 43 #endif 44 #ifdef NS 45 ADDDOMAIN(ns); 46 #endif 47 #ifdef ISO 48 ADDDOMAIN(iso); 49 #endif 50 #ifdef CCITT 51 ADDDOMAIN(ccitt); 52 #endif 53 #include "imp.h" 54 #if NIMP > 0 55 ADDDOMAIN(imp); 56 #endif 57 #endif 58 59 for (dp = domains; dp; dp = dp->dom_next) { 60 if (dp->dom_init) 61 (*dp->dom_init)(); 62 for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++) 63 if (pr->pr_init) 64 (*pr->pr_init)(); 65 } 66 67 if (max_linkhdr < 16) /* XXX */ 68 max_linkhdr = 16; 69 max_hdr = max_linkhdr + max_protohdr; 70 max_datalen = MHLEN - max_hdr; 71 timeout(pffasttimo, NULL, 1); 72 timeout(pfslowtimo, NULL, 1); 73 } 74 75 struct protosw * 76 pffindtype(family, type) 77 int family, type; 78 { 79 register struct domain *dp; 80 register struct protosw *pr; 81 82 for (dp = domains; dp; dp = dp->dom_next) 83 if (dp->dom_family == family) 84 goto found; 85 return (0); 86 found: 87 for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++) 88 if (pr->pr_type && pr->pr_type == type) 89 return (pr); 90 return (0); 91 } 92 93 struct protosw * 94 pffindproto(family, protocol, type) 95 int family, protocol, type; 96 { 97 register struct domain *dp; 98 register struct protosw *pr; 99 struct protosw *maybe = 0; 100 101 if (family == 0) 102 return (0); 103 for (dp = domains; dp; dp = dp->dom_next) 104 if (dp->dom_family == family) 105 goto found; 106 return (0); 107 found: 108 for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++) { 109 if ((pr->pr_protocol == protocol) && (pr->pr_type == type)) 110 return (pr); 111 112 if (type == SOCK_RAW && pr->pr_type == SOCK_RAW && 113 pr->pr_protocol == 0 && maybe == (struct protosw *)0) 114 maybe = pr; 115 } 116 return (maybe); 117 } 118 119 int 120 net_sysctl(name, namelen, oldp, oldlenp, newp, newlen, p) 121 int *name; 122 u_int namelen; 123 void *oldp; 124 size_t *oldlenp; 125 void *newp; 126 size_t newlen; 127 struct proc *p; 128 { 129 register struct domain *dp; 130 register struct protosw *pr; 131 int family, protocol; 132 133 /* 134 * All sysctl names at this level are nonterminal; 135 * next two components are protocol family and protocol number, 136 * then at least one addition component. 137 */ 138 if (namelen < 3) 139 return (EISDIR); /* overloaded */ 140 family = name[0]; 141 protocol = name[1]; 142 143 if (family == 0) 144 return (0); 145 for (dp = domains; dp; dp = dp->dom_next) 146 if (dp->dom_family == family) 147 goto found; 148 return (ENOPROTOOPT); 149 found: 150 for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++) 151 if (pr->pr_protocol == protocol && pr->pr_sysctl) 152 return ((*pr->pr_sysctl)(name + 2, namelen - 2, 153 oldp, oldlenp, newp, newlen)); 154 return (ENOPROTOOPT); 155 } 156 157 void 158 pfctlinput(cmd, sa) 159 int cmd; 160 struct sockaddr *sa; 161 { 162 register struct domain *dp; 163 register struct protosw *pr; 164 165 for (dp = domains; dp; dp = dp->dom_next) 166 for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++) 167 if (pr->pr_ctlinput) 168 (*pr->pr_ctlinput)(cmd, sa, (caddr_t)0); 169 } 170 171 void 172 pfslowtimo(arg) 173 void *arg; 174 { 175 register struct domain *dp; 176 register struct protosw *pr; 177 178 for (dp = domains; dp; dp = dp->dom_next) 179 for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++) 180 if (pr->pr_slowtimo) 181 (*pr->pr_slowtimo)(); 182 timeout(pfslowtimo, NULL, hz/2); 183 } 184 185 void 186 pffasttimo(arg) 187 void *arg; 188 { 189 register struct domain *dp; 190 register struct protosw *pr; 191 192 for (dp = domains; dp; dp = dp->dom_next) 193 for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++) 194 if (pr->pr_fasttimo) 195 (*pr->pr_fasttimo)(); 196 timeout(pffasttimo, NULL, hz/5); 197 } 198