uipc_domain.c revision 1.4 1 1.1 cgd /*
2 1.1 cgd * Copyright (c) 1982, 1986 Regents of the University of California.
3 1.1 cgd * All rights reserved.
4 1.1 cgd *
5 1.1 cgd * Redistribution and use in source and binary forms, with or without
6 1.1 cgd * modification, are permitted provided that the following conditions
7 1.1 cgd * are met:
8 1.1 cgd * 1. Redistributions of source code must retain the above copyright
9 1.1 cgd * notice, this list of conditions and the following disclaimer.
10 1.1 cgd * 2. Redistributions in binary form must reproduce the above copyright
11 1.1 cgd * notice, this list of conditions and the following disclaimer in the
12 1.1 cgd * documentation and/or other materials provided with the distribution.
13 1.1 cgd * 3. All advertising materials mentioning features or use of this software
14 1.1 cgd * must display the following acknowledgement:
15 1.1 cgd * This product includes software developed by the University of
16 1.1 cgd * California, Berkeley and its contributors.
17 1.1 cgd * 4. Neither the name of the University nor the names of its contributors
18 1.1 cgd * may be used to endorse or promote products derived from this software
19 1.1 cgd * without specific prior written permission.
20 1.1 cgd *
21 1.1 cgd * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 1.1 cgd * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 1.1 cgd * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 1.1 cgd * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 1.1 cgd * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 1.1 cgd * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 1.1 cgd * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 1.1 cgd * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 1.1 cgd * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 1.1 cgd * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 1.1 cgd * SUCH DAMAGE.
32 1.1 cgd *
33 1.3 cgd * from: @(#)uipc_domain.c 7.9 (Berkeley) 3/4/91
34 1.4 andrew * $Id: uipc_domain.c,v 1.4 1993/06/27 06:01:59 andrew Exp $
35 1.1 cgd */
36 1.1 cgd
37 1.1 cgd #include <sys/cdefs.h>
38 1.1 cgd #include "param.h"
39 1.4 andrew #include "systm.h"
40 1.1 cgd #include "socket.h"
41 1.1 cgd #include "protosw.h"
42 1.1 cgd #include "domain.h"
43 1.1 cgd #include "mbuf.h"
44 1.1 cgd #include "time.h"
45 1.1 cgd #include "kernel.h"
46 1.1 cgd
47 1.1 cgd #define ADDDOMAIN(x) { \
48 1.1 cgd extern struct domain __CONCAT(x,domain); \
49 1.1 cgd __CONCAT(x,domain.dom_next) = domains; \
50 1.1 cgd domains = &__CONCAT(x,domain); \
51 1.1 cgd }
52 1.1 cgd
53 1.4 andrew void pffasttimo __P((caddr_t));
54 1.4 andrew void pfslowtimo __P((caddr_t));
55 1.4 andrew
56 1.4 andrew void
57 1.1 cgd domaininit()
58 1.1 cgd {
59 1.1 cgd register struct domain *dp;
60 1.1 cgd register struct protosw *pr;
61 1.1 cgd
62 1.1 cgd #undef unix
63 1.1 cgd #ifndef lint
64 1.1 cgd ADDDOMAIN(unix);
65 1.1 cgd ADDDOMAIN(route);
66 1.1 cgd #ifdef INET
67 1.1 cgd ADDDOMAIN(inet);
68 1.1 cgd #endif
69 1.1 cgd #ifdef NS
70 1.1 cgd ADDDOMAIN(ns);
71 1.1 cgd #endif
72 1.1 cgd #ifdef ISO
73 1.1 cgd ADDDOMAIN(iso);
74 1.1 cgd #endif
75 1.1 cgd #ifdef RMP
76 1.1 cgd ADDDOMAIN(rmp);
77 1.1 cgd #endif
78 1.1 cgd #ifdef CCITT
79 1.1 cgd ADDDOMAIN(ccitt);
80 1.1 cgd #endif
81 1.2 glass #ifdef IMP
82 1.1 cgd ADDDOMAIN(imp);
83 1.1 cgd #endif
84 1.1 cgd #endif
85 1.1 cgd
86 1.1 cgd for (dp = domains; dp; dp = dp->dom_next) {
87 1.1 cgd if (dp->dom_init)
88 1.1 cgd (*dp->dom_init)();
89 1.1 cgd for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++)
90 1.1 cgd if (pr->pr_init)
91 1.1 cgd (*pr->pr_init)();
92 1.1 cgd }
93 1.1 cgd
94 1.1 cgd if (max_linkhdr < 16) /* XXX */
95 1.1 cgd max_linkhdr = 16;
96 1.1 cgd max_hdr = max_linkhdr + max_protohdr;
97 1.1 cgd max_datalen = MHLEN - max_hdr;
98 1.4 andrew pffasttimo(NULL);
99 1.4 andrew pfslowtimo(NULL);
100 1.1 cgd }
101 1.1 cgd
102 1.1 cgd struct protosw *
103 1.1 cgd pffindtype(family, type)
104 1.1 cgd int family, type;
105 1.1 cgd {
106 1.1 cgd register struct domain *dp;
107 1.1 cgd register struct protosw *pr;
108 1.1 cgd
109 1.1 cgd for (dp = domains; dp; dp = dp->dom_next)
110 1.1 cgd if (dp->dom_family == family)
111 1.1 cgd goto found;
112 1.1 cgd return (0);
113 1.1 cgd found:
114 1.1 cgd for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++)
115 1.1 cgd if (pr->pr_type && pr->pr_type == type)
116 1.1 cgd return (pr);
117 1.1 cgd return (0);
118 1.1 cgd }
119 1.1 cgd
120 1.1 cgd struct protosw *
121 1.1 cgd pffindproto(family, protocol, type)
122 1.1 cgd int family, protocol, type;
123 1.1 cgd {
124 1.1 cgd register struct domain *dp;
125 1.1 cgd register struct protosw *pr;
126 1.1 cgd struct protosw *maybe = 0;
127 1.1 cgd
128 1.1 cgd if (family == 0)
129 1.1 cgd return (0);
130 1.1 cgd for (dp = domains; dp; dp = dp->dom_next)
131 1.1 cgd if (dp->dom_family == family)
132 1.1 cgd goto found;
133 1.1 cgd return (0);
134 1.1 cgd found:
135 1.1 cgd for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++) {
136 1.1 cgd if ((pr->pr_protocol == protocol) && (pr->pr_type == type))
137 1.1 cgd return (pr);
138 1.1 cgd
139 1.1 cgd if (type == SOCK_RAW && pr->pr_type == SOCK_RAW &&
140 1.1 cgd pr->pr_protocol == 0 && maybe == (struct protosw *)0)
141 1.1 cgd maybe = pr;
142 1.1 cgd }
143 1.1 cgd return (maybe);
144 1.1 cgd }
145 1.1 cgd
146 1.4 andrew void
147 1.1 cgd pfctlinput(cmd, sa)
148 1.1 cgd int cmd;
149 1.1 cgd struct sockaddr *sa;
150 1.1 cgd {
151 1.1 cgd register struct domain *dp;
152 1.1 cgd register struct protosw *pr;
153 1.1 cgd
154 1.1 cgd for (dp = domains; dp; dp = dp->dom_next)
155 1.1 cgd for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++)
156 1.1 cgd if (pr->pr_ctlinput)
157 1.1 cgd (*pr->pr_ctlinput)(cmd, sa, (caddr_t) 0);
158 1.1 cgd }
159 1.1 cgd
160 1.4 andrew /* ARGSUSED */
161 1.4 andrew void
162 1.4 andrew pfslowtimo(caddr_t arg)
163 1.1 cgd {
164 1.1 cgd register struct domain *dp;
165 1.1 cgd register struct protosw *pr;
166 1.1 cgd
167 1.1 cgd for (dp = domains; dp; dp = dp->dom_next)
168 1.1 cgd for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++)
169 1.1 cgd if (pr->pr_slowtimo)
170 1.1 cgd (*pr->pr_slowtimo)();
171 1.1 cgd timeout(pfslowtimo, (caddr_t)0, hz/2);
172 1.1 cgd }
173 1.1 cgd
174 1.4 andrew /* ARGSUSED */
175 1.4 andrew void
176 1.4 andrew pffasttimo(caddr_t arg)
177 1.1 cgd {
178 1.1 cgd register struct domain *dp;
179 1.1 cgd register struct protosw *pr;
180 1.1 cgd
181 1.1 cgd for (dp = domains; dp; dp = dp->dom_next)
182 1.1 cgd for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++)
183 1.1 cgd if (pr->pr_fasttimo)
184 1.1 cgd (*pr->pr_fasttimo)();
185 1.1 cgd timeout(pffasttimo, (caddr_t)0, hz/5);
186 1.1 cgd }
187