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15637ed4 RG |
1 | /* |
2 | * Copyright (c) 1980, 1986 Regents of the University of California. | |
3 | * 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 | * | |
70c5ff60 | 33 | * from: @(#)raw_cb.c 7.11 (Berkeley) 6/28/90 |
4c45483e | 34 | * $Id: raw_cb.c,v 1.3 1993/11/07 17:47:04 wollman Exp $ |
15637ed4 RG |
35 | */ |
36 | ||
37 | #include "param.h" | |
38 | #include "systm.h" | |
39 | #include "mbuf.h" | |
40 | #include "socket.h" | |
41 | #include "socketvar.h" | |
42 | #include "domain.h" | |
43 | #include "protosw.h" | |
44 | #include "errno.h" | |
45 | ||
46 | #include "if.h" | |
47 | #include "route.h" | |
48 | #include "raw_cb.h" | |
49 | #include "../netinet/in.h" | |
50 | ||
51 | #include "machine/mtpr.h" | |
52 | ||
53 | /* | |
54 | * Routines to manage the raw protocol control blocks. | |
55 | * | |
56 | * TODO: | |
57 | * hash lookups by protocol family/protocol + address family | |
58 | * take care of unique address problems per AF? | |
59 | * redo address binding to allow wildcards | |
60 | */ | |
61 | ||
62 | u_long raw_sendspace = RAWSNDQ; | |
63 | u_long raw_recvspace = RAWRCVQ; | |
64 | ||
8ace4366 GW |
65 | struct rawcb rawcb; |
66 | ||
15637ed4 RG |
67 | /* |
68 | * Allocate a control block and a nominal amount | |
69 | * of buffer space for the socket. | |
70 | */ | |
4c45483e | 71 | int |
15637ed4 RG |
72 | raw_attach(so, proto) |
73 | register struct socket *so; | |
74 | int proto; | |
75 | { | |
76 | register struct rawcb *rp = sotorawcb(so); | |
77 | int error; | |
78 | ||
79 | /* | |
80 | * It is assumed that raw_attach is called | |
81 | * after space has been allocated for the | |
82 | * rawcb. | |
83 | */ | |
84 | if (rp == 0) | |
85 | return (ENOBUFS); | |
86 | if (error = soreserve(so, raw_sendspace, raw_recvspace)) | |
87 | return (error); | |
88 | rp->rcb_socket = so; | |
89 | rp->rcb_proto.sp_family = so->so_proto->pr_domain->dom_family; | |
90 | rp->rcb_proto.sp_protocol = proto; | |
91 | insque(rp, &rawcb); | |
92 | return (0); | |
93 | } | |
94 | ||
95 | /* | |
96 | * Detach the raw connection block and discard | |
97 | * socket resources. | |
98 | */ | |
4c45483e | 99 | void |
15637ed4 RG |
100 | raw_detach(rp) |
101 | register struct rawcb *rp; | |
102 | { | |
103 | struct socket *so = rp->rcb_socket; | |
104 | ||
105 | so->so_pcb = 0; | |
106 | sofree(so); | |
107 | remque(rp); | |
108 | #ifdef notdef | |
109 | if (rp->rcb_laddr) | |
110 | m_freem(dtom(rp->rcb_laddr)); | |
111 | rp->rcb_laddr = 0; | |
112 | #endif | |
113 | free((caddr_t)(rp), M_PCB); | |
114 | } | |
115 | ||
116 | /* | |
117 | * Disconnect and possibly release resources. | |
118 | */ | |
4c45483e | 119 | void |
15637ed4 RG |
120 | raw_disconnect(rp) |
121 | struct rawcb *rp; | |
122 | { | |
123 | ||
124 | #ifdef notdef | |
125 | if (rp->rcb_faddr) | |
126 | m_freem(dtom(rp->rcb_faddr)); | |
127 | rp->rcb_faddr = 0; | |
128 | #endif | |
129 | if (rp->rcb_socket->so_state & SS_NOFDREF) | |
130 | raw_detach(rp); | |
131 | } | |
132 | ||
133 | #ifdef notdef | |
134 | raw_bind(so, nam) | |
135 | register struct socket *so; | |
136 | struct mbuf *nam; | |
137 | { | |
138 | struct sockaddr *addr = mtod(nam, struct sockaddr *); | |
139 | register struct rawcb *rp; | |
140 | ||
141 | if (ifnet == 0) | |
142 | return (EADDRNOTAVAIL); | |
143 | rp = sotorawcb(so); | |
144 | nam = m_copym(nam, 0, M_COPYALL, M_WAITOK); | |
145 | rp->rcb_laddr = mtod(nam, struct sockaddr *); | |
146 | return (0); | |
147 | } | |
148 | #endif |