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da7c5cc6 | 1 | /* |
c4ec2128 | 2 | * Copyright (c) 1982, 1986 Regents of the University of California. |
e0813a30 | 3 | * All rights reserved. |
da7c5cc6 | 4 | * |
e0813a30 | 5 | * Redistribution and use in source and binary forms are permitted |
616d42db KB |
6 | * provided that the above copyright notice and this paragraph are |
7 | * duplicated in all such forms and that any documentation, | |
8 | * advertising materials, and other materials related to such | |
9 | * distribution and use acknowledge that the software was developed | |
10 | * by the University of California, Berkeley. The name of the | |
11 | * University may not be used to endorse or promote products derived | |
12 | * from this software without specific prior written permission. | |
13 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR | |
14 | * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED | |
15 | * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. | |
e0813a30 | 16 | * |
c4ec2128 | 17 | * @(#)sys_socket.c 7.5 (Berkeley) %G% |
da7c5cc6 | 18 | */ |
48aab316 | 19 | |
94368568 JB |
20 | #include "param.h" |
21 | #include "systm.h" | |
94368568 JB |
22 | #include "user.h" |
23 | #include "file.h" | |
24 | #include "mbuf.h" | |
25 | #include "protosw.h" | |
26 | #include "socket.h" | |
27 | #include "socketvar.h" | |
28 | #include "ioctl.h" | |
29 | #include "uio.h" | |
30 | #include "stat.h" | |
48aab316 SL |
31 | |
32 | #include "../net/if.h" | |
33 | #include "../net/route.h" | |
34 | ||
c4ec2128 | 35 | int soo_read(), soo_write(), soo_ioctl(), soo_select(), soo_close(); |
48aab316 | 36 | struct fileops socketops = |
c4ec2128 | 37 | { soo_read, soo_write, soo_ioctl, soo_select, soo_close }; |
48aab316 | 38 | |
c4ec2128 KM |
39 | /* ARGSUSED */ |
40 | soo_read(fp, uio, cred) | |
48aab316 | 41 | struct file *fp; |
48aab316 | 42 | struct uio *uio; |
c4ec2128 | 43 | struct ucred *cred; |
48aab316 | 44 | { |
48aab316 | 45 | |
c4ec2128 KM |
46 | return (soreceive((struct socket *)fp->f_data, (struct mbuf **)0, |
47 | uio, (int *)0, (struct mbuf **)0, (struct mbuf **)0)); | |
48 | } | |
49 | ||
50 | /* ARGSUSED */ | |
51 | soo_write(fp, uio, cred) | |
52 | struct file *fp; | |
53 | struct uio *uio; | |
54 | struct ucred *cred; | |
55 | { | |
56 | ||
57 | return (sosend((struct socket *)fp->f_data, (struct mbuf *)0, | |
58 | uio, 0, (struct mbuf *)0, (struct mbuf *)0)); | |
48aab316 SL |
59 | } |
60 | ||
61 | soo_ioctl(fp, cmd, data) | |
62 | struct file *fp; | |
63 | int cmd; | |
64 | register caddr_t data; | |
65 | { | |
66 | register struct socket *so = (struct socket *)fp->f_data; | |
67 | ||
68 | switch (cmd) { | |
69 | ||
70 | case FIONBIO: | |
71 | if (*(int *)data) | |
72 | so->so_state |= SS_NBIO; | |
73 | else | |
74 | so->so_state &= ~SS_NBIO; | |
1116b929 | 75 | return (0); |
48aab316 SL |
76 | |
77 | case FIOASYNC: | |
78 | if (*(int *)data) | |
79 | so->so_state |= SS_ASYNC; | |
80 | else | |
81 | so->so_state &= ~SS_ASYNC; | |
1116b929 | 82 | return (0); |
48aab316 | 83 | |
8b899dbe SL |
84 | case FIONREAD: |
85 | *(int *)data = so->so_rcv.sb_cc; | |
1116b929 | 86 | return (0); |
8b899dbe | 87 | |
48aab316 | 88 | case SIOCSPGRP: |
a2aebb63 | 89 | so->so_pgid = *(int *)data; |
1116b929 | 90 | return (0); |
48aab316 SL |
91 | |
92 | case SIOCGPGRP: | |
a2aebb63 | 93 | *(int *)data = so->so_pgid; |
1116b929 | 94 | return (0); |
48aab316 SL |
95 | |
96 | case SIOCATMARK: | |
97 | *(int *)data = (so->so_state&SS_RCVATMARK) != 0; | |
1116b929 | 98 | return (0); |
48aab316 | 99 | } |
1116b929 SL |
100 | /* |
101 | * Interface/routing/protocol specific ioctls: | |
102 | * interface and routing ioctls should have a | |
103 | * different entry since a socket's unnecessary | |
104 | */ | |
105 | #define cmdbyte(x) (((x) >> 8) & 0xff) | |
106 | if (cmdbyte(cmd) == 'i') | |
adcb6261 | 107 | return (ifioctl(so, cmd, data)); |
1116b929 SL |
108 | if (cmdbyte(cmd) == 'r') |
109 | return (rtioctl(cmd, data)); | |
110 | return ((*so->so_proto->pr_usrreq)(so, PRU_CONTROL, | |
111 | (struct mbuf *)cmd, (struct mbuf *)data, (struct mbuf *)0)); | |
48aab316 SL |
112 | } |
113 | ||
114 | soo_select(fp, which) | |
115 | struct file *fp; | |
116 | int which; | |
117 | { | |
118 | register struct socket *so = (struct socket *)fp->f_data; | |
119 | register int s = splnet(); | |
120 | ||
121 | switch (which) { | |
122 | ||
123 | case FREAD: | |
124 | if (soreadable(so)) { | |
125 | splx(s); | |
126 | return (1); | |
127 | } | |
128 | sbselqueue(&so->so_rcv); | |
129 | break; | |
130 | ||
131 | case FWRITE: | |
132 | if (sowriteable(so)) { | |
133 | splx(s); | |
134 | return (1); | |
135 | } | |
136 | sbselqueue(&so->so_snd); | |
137 | break; | |
de2c74a5 MK |
138 | |
139 | case 0: | |
140 | if (so->so_oobmark || | |
141 | (so->so_state & SS_RCVATMARK)) { | |
142 | splx(s); | |
143 | return (1); | |
144 | } | |
145 | sbselqueue(&so->so_rcv); | |
146 | break; | |
48aab316 SL |
147 | } |
148 | splx(s); | |
149 | return (0); | |
150 | } | |
151 | ||
502b634a | 152 | /*ARGSUSED*/ |
92438dfc SL |
153 | soo_stat(so, ub) |
154 | register struct socket *so; | |
48aab316 SL |
155 | register struct stat *ub; |
156 | { | |
48aab316 SL |
157 | |
158 | bzero((caddr_t)ub, sizeof (*ub)); | |
48aab316 SL |
159 | return ((*so->so_proto->pr_usrreq)(so, PRU_SENSE, |
160 | (struct mbuf *)ub, (struct mbuf *)0, | |
161 | (struct mbuf *)0)); | |
48aab316 SL |
162 | } |
163 | ||
164 | soo_close(fp) | |
165 | struct file *fp; | |
166 | { | |
ec04fec2 | 167 | int error = 0; |
e0813a30 | 168 | |
ec04fec2 SL |
169 | if (fp->f_data) |
170 | error = soclose((struct socket *)fp->f_data); | |
48aab316 SL |
171 | fp->f_data = 0; |
172 | return (error); | |
173 | } |