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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, 1990, 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: * @(#)sys_socket.c 8.1 (Berkeley) 6/10/93
59: */
60:
61: #include <sys/param.h>
62: #include <sys/systm.h>
63: #include <sys/file.h>
64: #include <sys/mbuf.h>
65: #include <sys/protosw.h>
66: #include <sys/socket.h>
67: #include <sys/socketvar.h>
68: #include <sys/ioctl.h>
69: #include <sys/stat.h>
70:
71: #include <net/if.h>
72: #include <net/route.h>
73:
74: struct fileops socketops =
75: { soo_read, soo_write, soo_ioctl, soo_select, soo_close };
76:
77: /* ARGSUSED */
78: int
79: soo_read(fp, uio, cred)
80: struct file *fp;
81: struct uio *uio;
82: struct ucred *cred;
83: {
84:
85: return (soreceive((struct socket *)fp->f_data, (struct mbuf **)0,
86: uio, (struct mbuf **)0, (struct mbuf **)0, (int *)0));
87: }
88:
89: /* ARGSUSED */
90: int
91: soo_write(fp, uio, cred)
92: struct file *fp;
93: struct uio *uio;
94: struct ucred *cred;
95: {
96:
97: return (sosend((struct socket *)fp->f_data, (struct mbuf *)0,
98: uio, (struct mbuf *)0, (struct mbuf *)0, 0));
99: }
100:
101: int
102: soo_ioctl(fp, cmd, data, p)
103: struct file *fp;
104: u_long cmd;
105: register caddr_t data;
106: struct proc *p;
107: {
108: register struct socket *so = (struct socket *)fp->f_data;
109:
110: switch (cmd) {
111:
112: case FIONBIO:
113: if (*(int *)data)
114: so->so_state |= SS_NBIO;
115: else
116: so->so_state &= ~SS_NBIO;
117: return (0);
118:
119: case FIOASYNC:
120: if (*(int *)data) {
121: so->so_state |= SS_ASYNC;
122: so->so_rcv.sb_flags |= SB_ASYNC;
123: so->so_snd.sb_flags |= SB_ASYNC;
124: } else {
125: so->so_state &= ~SS_ASYNC;
126: so->so_rcv.sb_flags &= ~SB_ASYNC;
127: so->so_snd.sb_flags &= ~SB_ASYNC;
128: }
129: return (0);
130:
131: case FIONREAD:
132: *(int *)data = so->so_rcv.sb_cc;
133: return (0);
134:
135: case SIOCSPGRP:
136: so->so_pgid = *(int *)data;
137: return (0);
138:
139: case SIOCGPGRP:
140: *(int *)data = so->so_pgid;
141: return (0);
142:
143: case SIOCATMARK:
144: *(int *)data = (so->so_state&SS_RCVATMARK) != 0;
145: return (0);
146: }
147: /*
148: * Interface/routing/protocol specific ioctls:
149: * interface and routing ioctls should have a
150: * different entry since a socket's unnecessary
151: */
152: if (IOCGROUP(cmd) == 'i')
153: return (ifioctl(so, cmd, data, p));
154: if (IOCGROUP(cmd) == 'r')
155: return (rtioctl(cmd, data, p));
156: return ((*so->so_proto->pr_usrreq)(so, PRU_CONTROL,
157: (struct mbuf *)cmd, (struct mbuf *)data, (struct mbuf *)0));
158: }
159:
160: int
161: soo_select(fp, which, p)
162: struct file *fp;
163: int which;
164: struct proc *p;
165: {
166: register struct socket *so = (struct socket *)fp->f_data;
167: register int s = splnet();
168:
169: switch (which) {
170:
171: case FREAD:
172: if (soreadable(so)) {
173: splx(s);
174: return (1);
175: }
176: selrecord(p, &so->so_rcv.sb_sel);
177: so->so_rcv.sb_flags |= SB_SEL;
178: break;
179:
180: case FWRITE:
181: if (sowriteable(so)) {
182: splx(s);
183: return (1);
184: }
185: selrecord(p, &so->so_snd.sb_sel);
186: so->so_snd.sb_flags |= SB_SEL;
187: break;
188:
189: case 0:
190: if (so->so_oobmark || (so->so_state & SS_RCVATMARK)) {
191: splx(s);
192: return (1);
193: }
194: selrecord(p, &so->so_rcv.sb_sel);
195: so->so_rcv.sb_flags |= SB_SEL;
196: break;
197: }
198: splx(s);
199: return (0);
200: }
201:
202: int
203: soo_stat(so, ub)
204: register struct socket *so;
205: register struct stat *ub;
206: {
207:
208: bzero((caddr_t)ub, sizeof (*ub));
209: ub->st_mode = S_IFSOCK;
210: return ((*so->so_proto->pr_usrreq)(so, PRU_SENSE,
211: (struct mbuf *)ub, (struct mbuf *)0,
212: (struct mbuf *)0));
213: }
214:
215: /* ARGSUSED */
216: int
217: soo_close(fp, p)
218: struct file *fp;
219: struct proc *p;
220: {
221: int error = 0;
222:
223: if (fp->f_data)
224: error = soclose((struct socket *)fp->f_data);
225: fp->f_data = 0;
226: return (error);
227: }
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