290 lines
7.1 KiB
C
290 lines
7.1 KiB
C
/* $OpenBSD: uipc_domain.c,v 1.65 2024/01/11 14:15:11 bluhm Exp $ */
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/* $NetBSD: uipc_domain.c,v 1.14 1996/02/09 19:00:44 christos Exp $ */
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/*
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* Copyright (c) 1982, 1986, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)uipc_domain.c 8.2 (Berkeley) 10/18/93
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*/
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#include <sys/param.h>
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#include <sys/socket.h>
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#include <sys/protosw.h>
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#include <sys/domain.h>
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#include <sys/mbuf.h>
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#include <sys/systm.h>
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#include <sys/sysctl.h>
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#include <sys/timeout.h>
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#include "bpfilter.h"
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#include "pflow.h"
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const struct domain *const domains[] = {
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#ifdef MPLS
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&mplsdomain,
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#endif
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#if defined (IPSEC) || defined (TCP_SIGNATURE)
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&pfkeydomain,
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#endif
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#ifdef INET6
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&inet6domain,
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#endif /* INET6 */
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&inetdomain,
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&unixdomain,
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&routedomain,
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NULL
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};
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void pffasttimo(void *);
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void pfslowtimo(void *);
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void
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domaininit(void)
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{
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const struct domain *dp;
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const struct protosw *pr;
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static struct timeout pffast_timeout;
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static struct timeout pfslow_timeout;
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int i;
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for (i = 0; (dp = domains[i]) != NULL; i++) {
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if (dp->dom_init)
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(*dp->dom_init)();
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for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++)
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if (pr->pr_init)
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(*pr->pr_init)();
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}
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/*
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* max_linkhdr of 64 was chosen to encompass tunnelling
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* traffic in IP payloads, eg, by etherip(4) or gif(4),
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* without needing to prepend an mbuf to fit those
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* headers.
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*/
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if (max_linkhdr < 64)
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max_linkhdr = 64;
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max_hdr = max_linkhdr + max_protohdr;
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timeout_set_proc(&pffast_timeout, pffasttimo, &pffast_timeout);
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timeout_set_proc(&pfslow_timeout, pfslowtimo, &pfslow_timeout);
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timeout_add(&pffast_timeout, 1);
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timeout_add(&pfslow_timeout, 1);
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}
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const struct domain *
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pffinddomain(int family)
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{
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const struct domain *dp;
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int i;
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for (i = 0; (dp = domains[i]) != NULL; i++) {
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if (dp->dom_family == family)
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return (dp);
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}
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return (NULL);
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}
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const struct protosw *
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pffindtype(int family, int type)
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{
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const struct domain *dp;
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const struct protosw *pr;
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dp = pffinddomain(family);
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if (dp == NULL)
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return (NULL);
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for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++)
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if (pr->pr_type && pr->pr_type == type)
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return (pr);
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return (NULL);
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}
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const struct protosw *
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pffindproto(int family, int protocol, int type)
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{
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const struct domain *dp;
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const struct protosw *pr;
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const struct protosw *maybe = NULL;
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if (family == PF_UNSPEC)
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return (NULL);
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dp = pffinddomain(family);
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if (dp == NULL)
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return (NULL);
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for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++) {
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if ((pr->pr_protocol == protocol) && (pr->pr_type == type))
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return (pr);
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if (type == SOCK_RAW && pr->pr_type == SOCK_RAW &&
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pr->pr_protocol == 0 && maybe == NULL)
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maybe = pr;
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}
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return (maybe);
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}
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static int
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net_link_sysctl(int *name, u_int namelen, void *oldp, size_t *oldlenp,
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void *newp, size_t newlen)
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{
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int node;
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int error;
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/*
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* All sysctl names at this level are nonterminal.
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*/
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if (namelen < 2)
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return (EISDIR); /* overloaded */
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node = name[0];
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namelen--;
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name++;
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switch (node) {
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case NET_LINK_IFRXQ:
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error = net_ifiq_sysctl(name, namelen, oldp, oldlenp,
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newp, newlen);
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break;
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default:
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error = ENOPROTOOPT;
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break;
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}
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return (error);
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}
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int
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net_sysctl(int *name, u_int namelen, void *oldp, size_t *oldlenp, void *newp,
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size_t newlen, struct proc *p)
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{
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const struct domain *dp;
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const struct protosw *pr;
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int family, protocol;
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/*
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* All sysctl names at this level are nonterminal.
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* Usually: next two components are protocol family and protocol
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* number, then at least one addition component.
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*/
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if (namelen < 2)
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return (EISDIR); /* overloaded */
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family = name[0];
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if (family == PF_UNSPEC)
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return (0);
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if (family == PF_LINK)
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return (net_link_sysctl(name + 1, namelen - 1, oldp, oldlenp,
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newp, newlen));
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if (family == PF_UNIX)
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return (uipc_sysctl(name + 1, namelen - 1, oldp, oldlenp,
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newp, newlen));
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#if NBPFILTER > 0
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if (family == PF_BPF)
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return (bpf_sysctl(name + 1, namelen - 1, oldp, oldlenp,
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newp, newlen));
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#endif
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#if NPFLOW > 0
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if (family == PF_PFLOW)
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return (pflow_sysctl(name + 1, namelen - 1, oldp, oldlenp,
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newp, newlen));
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#endif
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#ifdef PIPEX
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if (family == PF_PIPEX)
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return (pipex_sysctl(name + 1, namelen - 1, oldp, oldlenp,
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newp, newlen));
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#endif
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#ifdef MPLS
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if (family == PF_MPLS)
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return (mpls_sysctl(name + 1, namelen - 1, oldp, oldlenp,
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newp, newlen));
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#endif
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dp = pffinddomain(family);
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if (dp == NULL)
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return (ENOPROTOOPT);
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if (namelen < 3)
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return (EISDIR); /* overloaded */
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protocol = name[1];
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for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++)
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if (pr->pr_protocol == protocol && pr->pr_sysctl)
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return ((*pr->pr_sysctl)(name + 2, namelen - 2,
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oldp, oldlenp, newp, newlen));
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return (ENOPROTOOPT);
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}
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void
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pfctlinput(int cmd, struct sockaddr *sa)
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{
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const struct domain *dp;
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const struct protosw *pr;
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int i;
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NET_ASSERT_LOCKED();
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for (i = 0; (dp = domains[i]) != NULL; i++) {
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for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++)
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if (pr->pr_ctlinput)
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(*pr->pr_ctlinput)(cmd, sa, 0, NULL);
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}
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}
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void
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pfslowtimo(void *arg)
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{
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struct timeout *to = (struct timeout *)arg;
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const struct domain *dp;
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const struct protosw *pr;
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int i;
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for (i = 0; (dp = domains[i]) != NULL; i++) {
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for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++)
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if (pr->pr_slowtimo)
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(*pr->pr_slowtimo)();
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}
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timeout_add_msec(to, 500);
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}
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void
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pffasttimo(void *arg)
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{
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struct timeout *to = (struct timeout *)arg;
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const struct domain *dp;
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const struct protosw *pr;
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int i;
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for (i = 0; (dp = domains[i]) != NULL; i++) {
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for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++)
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if (pr->pr_fasttimo)
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(*pr->pr_fasttimo)();
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}
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timeout_add_msec(to, 200);
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}
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