Annotation of kernel/bsd/kern/uipc_domain.c, revision 1.1

1.1     ! root        1: /*
        !             2:  * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
        !             3:  *
        !             4:  * @APPLE_LICENSE_HEADER_START@
        !             5:  * 
        !             6:  * Portions Copyright (c) 1999 Apple Computer, Inc.  All Rights
        !             7:  * Reserved.  This file contains Original Code and/or Modifications of
        !             8:  * Original Code as defined in and that are subject to the Apple Public
        !             9:  * Source License Version 1.1 (the "License").  You may not use this file
        !            10:  * except in compliance with the License.  Please obtain a copy of the
        !            11:  * License at http://www.apple.com/publicsource and read it before using
        !            12:  * this file.
        !            13:  * 
        !            14:  * The Original Code and all software distributed under the License are
        !            15:  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
        !            16:  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
        !            17:  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
        !            18:  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
        !            19:  * License for the specific language governing rights and limitations
        !            20:  * under the License.
        !            21:  * 
        !            22:  * @APPLE_LICENSE_HEADER_END@
        !            23:  */
        !            24: 
        !            25: /* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */
        !            26: /*
        !            27:  * Copyright (c) 1982, 1986, 1993
        !            28:  *     The Regents of the University of California.  All rights reserved.
        !            29:  *
        !            30:  * Redistribution and use in source and binary forms, with or without
        !            31:  * modification, are permitted provided that the following conditions
        !            32:  * are met:
        !            33:  * 1. Redistributions of source code must retain the above copyright
        !            34:  *    notice, this list of conditions and the following disclaimer.
        !            35:  * 2. Redistributions in binary form must reproduce the above copyright
        !            36:  *    notice, this list of conditions and the following disclaimer in the
        !            37:  *    documentation and/or other materials provided with the distribution.
        !            38:  * 3. All advertising materials mentioning features or use of this software
        !            39:  *    must display the following acknowledgement:
        !            40:  *     This product includes software developed by the University of
        !            41:  *     California, Berkeley and its contributors.
        !            42:  * 4. Neither the name of the University nor the names of its contributors
        !            43:  *    may be used to endorse or promote products derived from this software
        !            44:  *    without specific prior written permission.
        !            45:  *
        !            46:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
        !            47:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
        !            48:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
        !            49:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
        !            50:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
        !            51:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
        !            52:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
        !            53:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
        !            54:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
        !            55:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
        !            56:  * SUCH DAMAGE.
        !            57:  *
        !            58:  *     @(#)uipc_domain.c       8.3 (Berkeley) 2/14/95
        !            59:  */
        !            60: 
        !            61: #include <sys/param.h>
        !            62: #include <sys/socket.h>
        !            63: #include <sys/protosw.h>
        !            64: #include <sys/domain.h>
        !            65: #include <sys/mbuf.h>
        !            66: #include <sys/time.h>
        !            67: #include <sys/kernel.h>
        !            68: #include <sys/systm.h>
        !            69: #include <sys/proc.h>
        !            70: #include <sys/sysctl.h>
        !            71: 
        !            72: void   pffasttimo __P((void *));
        !            73: void   pfslowtimo __P((void *));
        !            74: 
        !            75: #define        ADDDOMAIN(x)    { \
        !            76:        extern struct domain __CONCAT(x,domain); \
        !            77:        __CONCAT(x,domain.dom_next) = domains; \
        !            78:        domains = &__CONCAT(x,domain); \
        !            79: }
        !            80: 
        !            81: void
        !            82: domaininit()
        !            83: {
        !            84:        register struct domain *dp;
        !            85:        register struct protosw *pr;
        !            86: 
        !            87: #undef unix
        !            88: #ifndef lint
        !            89:        ADDDOMAIN(unix);
        !            90:        ADDDOMAIN(route);
        !            91: #if INET
        !            92:        ADDDOMAIN(inet);
        !            93: #endif
        !            94: #if NS
        !            95:        ADDDOMAIN(ns);
        !            96: #endif
        !            97: #if ISO
        !            98:        ADDDOMAIN(iso);
        !            99: #endif
        !           100: #if CCITT
        !           101:        ADDDOMAIN(ccitt);
        !           102: #endif
        !           103: 
        !           104: #if defined(ppc)
        !           105:        ADDDOMAIN(ndrv);
        !           106: #endif /* ppc */
        !           107: 
        !           108: 
        !           109: #ifdef notdef /* XXXX */
        !           110: #include "imp.h"
        !           111: #if NIMP > 0
        !           112:        ADDDOMAIN(imp);
        !           113: #endif
        !           114: #endif
        !           115: #endif
        !           116: 
        !           117:        for (dp = domains; dp; dp = dp->dom_next) {
        !           118:                if (dp->dom_init)
        !           119:                        (*dp->dom_init)();
        !           120:                for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++)
        !           121:                        if (pr->pr_init)
        !           122:                                (*pr->pr_init)();
        !           123:        }
        !           124: 
        !           125: if (max_linkhdr < 16)          /* XXX */
        !           126: max_linkhdr = 16;
        !           127:        max_hdr = max_linkhdr + max_protohdr;
        !           128:        max_datalen = MHLEN - max_hdr;
        !           129:        timeout(pffasttimo, NULL, 1);
        !           130:        timeout(pfslowtimo, NULL, 1);
        !           131: }
        !           132: 
        !           133: struct protosw *
        !           134: pffindtype(family, type)
        !           135:        int family, type;
        !           136: {
        !           137:        register struct domain *dp;
        !           138:        register struct protosw *pr;
        !           139: 
        !           140:        for (dp = domains; dp; dp = dp->dom_next)
        !           141:                if (dp->dom_family == family)
        !           142:                        goto found;
        !           143:        return (0);
        !           144: found:
        !           145:        for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++)
        !           146:                if (pr->pr_type && pr->pr_type == type)
        !           147:                        return (pr);
        !           148:        return (0);
        !           149: }
        !           150: 
        !           151: struct protosw *
        !           152: pffindproto(family, protocol, type)
        !           153:        int family, protocol, type;
        !           154: {
        !           155:        register struct domain *dp;
        !           156:        register struct protosw *pr;
        !           157:        struct protosw *maybe = 0;
        !           158: 
        !           159:        if (family == 0)
        !           160:                return (0);
        !           161:        for (dp = domains; dp; dp = dp->dom_next)
        !           162:                if (dp->dom_family == family)
        !           163:                        goto found;
        !           164:        return (0);
        !           165: found:
        !           166:        for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++) {
        !           167:                if ((pr->pr_protocol == protocol) && (pr->pr_type == type))
        !           168:                        return (pr);
        !           169: 
        !           170:                if (type == SOCK_RAW && pr->pr_type == SOCK_RAW &&
        !           171:                    pr->pr_protocol == 0 && maybe == (struct protosw *)0)
        !           172:                        maybe = pr;
        !           173:        }
        !           174:        return (maybe);
        !           175: }
        !           176: 
        !           177: int
        !           178: net_sysctl(name, namelen, oldp, oldlenp, newp, newlen, p)
        !           179:        int *name;
        !           180:        u_int namelen;
        !           181:        void *oldp;
        !           182:        size_t *oldlenp;
        !           183:        void *newp;
        !           184:        size_t newlen;
        !           185:        struct proc *p;
        !           186: {
        !           187:        register struct domain *dp;
        !           188:        register struct protosw *pr;
        !           189:        int family, protocol;
        !           190: 
        !           191:        /*
        !           192:         * All sysctl names at this level are nonterminal;
        !           193:         * next two components are protocol family and protocol number,
        !           194:         * then at least one addition component.
        !           195:         */
        !           196:        if (namelen < 3)
        !           197:                return (EISDIR);                /* overloaded */
        !           198:        family = name[0];
        !           199:        protocol = name[1];
        !           200: 
        !           201:        if (family == 0)
        !           202:                return (0);
        !           203:        for (dp = domains; dp; dp = dp->dom_next)
        !           204:                if (dp->dom_family == family)
        !           205:                        goto found;
        !           206:        return (ENOPROTOOPT);
        !           207: found:
        !           208:        for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++)
        !           209:                if (pr->pr_protocol == protocol && pr->pr_sysctl)
        !           210:                        return ((*pr->pr_sysctl)(name + 2, namelen - 2,
        !           211:                            oldp, oldlenp, newp, newlen));
        !           212:        return (ENOPROTOOPT);
        !           213: }
        !           214: 
        !           215: void
        !           216: pfctlinput(cmd, sa)
        !           217:        int cmd;
        !           218:        struct sockaddr *sa;
        !           219: {
        !           220:        register struct domain *dp;
        !           221:        register struct protosw *pr;
        !           222: 
        !           223:        for (dp = domains; dp; dp = dp->dom_next)
        !           224:                for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++)
        !           225:                        if (pr->pr_ctlinput)
        !           226:                                (*pr->pr_ctlinput)(cmd, sa, (caddr_t)0);
        !           227: }
        !           228: 
        !           229: void
        !           230: pfslowtimo(arg)
        !           231:        void *arg;
        !           232: {
        !           233:        register struct domain *dp;
        !           234:        register struct protosw *pr;
        !           235: 
        !           236:        for (dp = domains; dp; dp = dp->dom_next)
        !           237:                for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++)
        !           238:                        if (pr->pr_slowtimo)
        !           239:                                (*pr->pr_slowtimo)();
        !           240:        timeout(pfslowtimo, NULL, hz/2);
        !           241: }
        !           242: 
        !           243: void
        !           244: pffasttimo(arg)
        !           245:        void *arg;
        !           246: {
        !           247:        register struct domain *dp;
        !           248:        register struct protosw *pr;
        !           249: 
        !           250:        for (dp = domains; dp; dp = dp->dom_next)
        !           251:                for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++)
        !           252:                        if (pr->pr_fasttimo)
        !           253:                                (*pr->pr_fasttimo)();
        !           254:        timeout(pffasttimo, NULL, hz/5);
        !           255: }

unix.superglobalmegacorp.com

This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.