1/* 2 * Copyright (c) 1982, 1986, 1990, 1993 3 * The Regents of the University of California. 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 * 33 * @(#)sys_socket.c 8.1 (Berkeley) 6/10/93
| 1/* 2 * Copyright (c) 1982, 1986, 1990, 1993 3 * The Regents of the University of California. 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 * 33 * @(#)sys_socket.c 8.1 (Berkeley) 6/10/93
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49#include <sys/stat.h> 50 51#include <net/if.h> 52#include <net/route.h> 53 54static int soo_read __P((struct file *fp, struct uio *uio, 55 struct ucred *cred)); 56static int soo_write __P((struct file *fp, struct uio *uio, 57 struct ucred *cred)); 58static int soo_close __P((struct file *fp, struct proc *p)); 59 60struct fileops socketops = 61 { soo_read, soo_write, soo_ioctl, soo_select, soo_close }; 62 63/* ARGSUSED */ 64static int 65soo_read(fp, uio, cred) 66 struct file *fp; 67 struct uio *uio; 68 struct ucred *cred; 69{ 70 71 return (soreceive((struct socket *)fp->f_data, (struct mbuf **)0, 72 uio, (struct mbuf **)0, (struct mbuf **)0, (int *)0)); 73} 74 75/* ARGSUSED */ 76static int 77soo_write(fp, uio, cred) 78 struct file *fp; 79 struct uio *uio; 80 struct ucred *cred; 81{ 82 83 return (sosend((struct socket *)fp->f_data, (struct mbuf *)0, 84 uio, (struct mbuf *)0, (struct mbuf *)0, 0)); 85} 86 87int 88soo_ioctl(fp, cmd, data, p) 89 struct file *fp; 90 int cmd; 91 register caddr_t data; 92 struct proc *p; 93{ 94 register struct socket *so = (struct socket *)fp->f_data; 95 96 switch (cmd) { 97 98 case FIONBIO: 99 if (*(int *)data) 100 so->so_state |= SS_NBIO; 101 else 102 so->so_state &= ~SS_NBIO; 103 return (0); 104 105 case FIOASYNC: 106 if (*(int *)data) { 107 so->so_state |= SS_ASYNC; 108 so->so_rcv.sb_flags |= SB_ASYNC; 109 so->so_snd.sb_flags |= SB_ASYNC; 110 } else { 111 so->so_state &= ~SS_ASYNC; 112 so->so_rcv.sb_flags &= ~SB_ASYNC; 113 so->so_snd.sb_flags &= ~SB_ASYNC; 114 } 115 return (0); 116 117 case FIONREAD: 118 *(int *)data = so->so_rcv.sb_cc; 119 return (0); 120 121 case SIOCSPGRP: 122 so->so_pgid = *(int *)data; 123 return (0); 124 125 case SIOCGPGRP: 126 *(int *)data = so->so_pgid; 127 return (0); 128 129 case SIOCATMARK: 130 *(int *)data = (so->so_state&SS_RCVATMARK) != 0; 131 return (0); 132 } 133 /* 134 * Interface/routing/protocol specific ioctls: 135 * interface and routing ioctls should have a 136 * different entry since a socket's unnecessary 137 */ 138 if (IOCGROUP(cmd) == 'i') 139 return (ifioctl(so, cmd, data, p)); 140 if (IOCGROUP(cmd) == 'r') 141 return (rtioctl(cmd, data, p)); 142 return ((*so->so_proto->pr_usrreqs->pru_control)(so, cmd, data, 0)); 143} 144 145int 146soo_select(fp, which, p) 147 struct file *fp; 148 int which; 149 struct proc *p; 150{ 151 register struct socket *so = (struct socket *)fp->f_data; 152 register int s = splnet(); 153 154 switch (which) { 155 156 case FREAD: 157 if (soreadable(so)) { 158 splx(s); 159 return (1); 160 } 161 selrecord(p, &so->so_rcv.sb_sel); 162 so->so_rcv.sb_flags |= SB_SEL; 163 break; 164 165 case FWRITE: 166 if (sowriteable(so)) { 167 splx(s); 168 return (1); 169 } 170 selrecord(p, &so->so_snd.sb_sel); 171 so->so_snd.sb_flags |= SB_SEL; 172 break; 173 174 case 0: 175 if (so->so_oobmark || (so->so_state & SS_RCVATMARK)) { 176 splx(s); 177 return (1); 178 } 179 selrecord(p, &so->so_rcv.sb_sel); 180 so->so_rcv.sb_flags |= SB_SEL; 181 break; 182 } 183 splx(s); 184 return (0); 185} 186 187int 188soo_stat(so, ub) 189 register struct socket *so; 190 register struct stat *ub; 191{ 192 193 bzero((caddr_t)ub, sizeof (*ub)); 194 ub->st_mode = S_IFSOCK; 195 return ((*so->so_proto->pr_usrreqs->pru_sense)(so, ub)); 196} 197 198/* ARGSUSED */ 199static int 200soo_close(fp, p) 201 struct file *fp; 202 struct proc *p; 203{ 204 int error = 0; 205 206 if (fp->f_data) 207 error = soclose((struct socket *)fp->f_data); 208 fp->f_data = 0; 209 return (error); 210}
| 50#include <sys/stat.h> 51 52#include <net/if.h> 53#include <net/route.h> 54 55static int soo_read __P((struct file *fp, struct uio *uio, 56 struct ucred *cred)); 57static int soo_write __P((struct file *fp, struct uio *uio, 58 struct ucred *cred)); 59static int soo_close __P((struct file *fp, struct proc *p)); 60 61struct fileops socketops = 62 { soo_read, soo_write, soo_ioctl, soo_select, soo_close }; 63 64/* ARGSUSED */ 65static int 66soo_read(fp, uio, cred) 67 struct file *fp; 68 struct uio *uio; 69 struct ucred *cred; 70{ 71 72 return (soreceive((struct socket *)fp->f_data, (struct mbuf **)0, 73 uio, (struct mbuf **)0, (struct mbuf **)0, (int *)0)); 74} 75 76/* ARGSUSED */ 77static int 78soo_write(fp, uio, cred) 79 struct file *fp; 80 struct uio *uio; 81 struct ucred *cred; 82{ 83 84 return (sosend((struct socket *)fp->f_data, (struct mbuf *)0, 85 uio, (struct mbuf *)0, (struct mbuf *)0, 0)); 86} 87 88int 89soo_ioctl(fp, cmd, data, p) 90 struct file *fp; 91 int cmd; 92 register caddr_t data; 93 struct proc *p; 94{ 95 register struct socket *so = (struct socket *)fp->f_data; 96 97 switch (cmd) { 98 99 case FIONBIO: 100 if (*(int *)data) 101 so->so_state |= SS_NBIO; 102 else 103 so->so_state &= ~SS_NBIO; 104 return (0); 105 106 case FIOASYNC: 107 if (*(int *)data) { 108 so->so_state |= SS_ASYNC; 109 so->so_rcv.sb_flags |= SB_ASYNC; 110 so->so_snd.sb_flags |= SB_ASYNC; 111 } else { 112 so->so_state &= ~SS_ASYNC; 113 so->so_rcv.sb_flags &= ~SB_ASYNC; 114 so->so_snd.sb_flags &= ~SB_ASYNC; 115 } 116 return (0); 117 118 case FIONREAD: 119 *(int *)data = so->so_rcv.sb_cc; 120 return (0); 121 122 case SIOCSPGRP: 123 so->so_pgid = *(int *)data; 124 return (0); 125 126 case SIOCGPGRP: 127 *(int *)data = so->so_pgid; 128 return (0); 129 130 case SIOCATMARK: 131 *(int *)data = (so->so_state&SS_RCVATMARK) != 0; 132 return (0); 133 } 134 /* 135 * Interface/routing/protocol specific ioctls: 136 * interface and routing ioctls should have a 137 * different entry since a socket's unnecessary 138 */ 139 if (IOCGROUP(cmd) == 'i') 140 return (ifioctl(so, cmd, data, p)); 141 if (IOCGROUP(cmd) == 'r') 142 return (rtioctl(cmd, data, p)); 143 return ((*so->so_proto->pr_usrreqs->pru_control)(so, cmd, data, 0)); 144} 145 146int 147soo_select(fp, which, p) 148 struct file *fp; 149 int which; 150 struct proc *p; 151{ 152 register struct socket *so = (struct socket *)fp->f_data; 153 register int s = splnet(); 154 155 switch (which) { 156 157 case FREAD: 158 if (soreadable(so)) { 159 splx(s); 160 return (1); 161 } 162 selrecord(p, &so->so_rcv.sb_sel); 163 so->so_rcv.sb_flags |= SB_SEL; 164 break; 165 166 case FWRITE: 167 if (sowriteable(so)) { 168 splx(s); 169 return (1); 170 } 171 selrecord(p, &so->so_snd.sb_sel); 172 so->so_snd.sb_flags |= SB_SEL; 173 break; 174 175 case 0: 176 if (so->so_oobmark || (so->so_state & SS_RCVATMARK)) { 177 splx(s); 178 return (1); 179 } 180 selrecord(p, &so->so_rcv.sb_sel); 181 so->so_rcv.sb_flags |= SB_SEL; 182 break; 183 } 184 splx(s); 185 return (0); 186} 187 188int 189soo_stat(so, ub) 190 register struct socket *so; 191 register struct stat *ub; 192{ 193 194 bzero((caddr_t)ub, sizeof (*ub)); 195 ub->st_mode = S_IFSOCK; 196 return ((*so->so_proto->pr_usrreqs->pru_sense)(so, ub)); 197} 198 199/* ARGSUSED */ 200static int 201soo_close(fp, p) 202 struct file *fp; 203 struct proc *p; 204{ 205 int error = 0; 206 207 if (fp->f_data) 208 error = soclose((struct socket *)fp->f_data); 209 fp->f_data = 0; 210 return (error); 211}
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