1/* $NetBSD: svr4_32_sockio.c,v 1.20 2008/03/21 21:54:59 ad Exp $ */ 2 3/*- 4 * Copyright (c) 1995, 2008 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Christos Zoulas. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32#include <sys/cdefs.h> 33__KERNEL_RCSID(0, "$NetBSD: svr4_32_sockio.c,v 1.20 2008/03/21 21:54:59 ad Exp $"); 34 35#include <sys/param.h> 36#include <sys/proc.h> 37#include <sys/systm.h> 38#include <sys/file.h> 39#include <sys/filedesc.h> 40#include <sys/ioctl.h> 41#include <sys/termios.h> 42#include <sys/tty.h> 43#include <sys/socket.h> 44#include <sys/mount.h> 45#include <net/if.h> 46#include <sys/malloc.h> 47 48#include <sys/syscallargs.h> 49 50#include <compat/sys/socket.h> 51#include <compat/sys/sockio.h> 52 53#include <compat/svr4_32/svr4_32_types.h> 54#include <compat/svr4_32/svr4_32_util.h> 55#include <compat/svr4_32/svr4_32_signal.h> 56#include <compat/svr4_32/svr4_32_lwp.h> 57#include <compat/svr4_32/svr4_32_ucontext.h> 58#include <compat/svr4_32/svr4_32_syscallargs.h> 59#include <compat/svr4_32/svr4_32_stropts.h> 60#include <compat/svr4_32/svr4_32_ioctl.h> 61#include <compat/svr4_32/svr4_32_sockio.h> 62 63static int bsd_to_svr4_flags(int); 64 65#define bsd_to_svr4_flag(a) \ 66 if (bf & __CONCAT(I,a)) sf |= __CONCAT(SVR4_I,a) 67 68static int 69bsd_to_svr4_flags(int bf) 70{ 71 int sf = 0; 72 bsd_to_svr4_flag(FF_UP); 73 bsd_to_svr4_flag(FF_BROADCAST); 74 bsd_to_svr4_flag(FF_DEBUG); 75 bsd_to_svr4_flag(FF_LOOPBACK); 76 bsd_to_svr4_flag(FF_POINTOPOINT); 77 bsd_to_svr4_flag(FF_NOTRAILERS); 78 bsd_to_svr4_flag(FF_RUNNING); 79 bsd_to_svr4_flag(FF_NOARP); 80 bsd_to_svr4_flag(FF_PROMISC); 81 bsd_to_svr4_flag(FF_ALLMULTI); 82 bsd_to_svr4_flag(FF_MULTICAST); 83 return sf; 84} 85 86int 87svr4_32_sock_ioctl(file_t *fp, struct lwp *l, register_t *retval, int fd, u_long cmd, void *data) 88{ 89 int error; 90 int (*ctl)(file_t *, u_long, void *) = fp->f_ops->fo_ioctl; 91 92 *retval = 0; 93 94 switch (cmd) { 95 case SVR4_SIOCGIFNUM: 96 { 97 struct ifnet *ifp; 98 int ifnum = 0; 99 100 /* 101 * This does not return the number of physical 102 * interfaces (if_index), but the number of interfaces 103 * + addresses like ifconf() does, because this number 104 * is used by code that will call SVR4_SIOCGIFCONF to 105 * find the space needed for SVR4_SIOCGIFCONF. So we 106 * count the number of ifreq entries that the next 107 * SVR4_SIOCGIFCONF will return. Maybe a more correct 108 * fix is to make SVR4_SIOCGIFCONF return only one 109 * entry per physical interface? 110 */ 111 112 IFNET_FOREACH(ifp) 113 ifnum += svr4_count_ifnum(ifp) 114 115 DPRINTF(("SIOCGIFNUM %d\n", ifnum)); 116 return copyout(&ifnum, data, sizeof(ifnum)); 117 } 118 119 case SVR4_32_SIOCGIFFLAGS: 120 { 121 struct oifreq br; 122 struct svr4_32_ifreq sr; 123 124 if ((error = copyin(data, &sr, sizeof(sr))) != 0) 125 return error; 126 127 (void) strncpy(br.ifr_name, sr.svr4_ifr_name, 128 sizeof(br.ifr_name)); 129 130 if ((error = (*ctl)(fp, SIOCGIFFLAGS, &br)) != 0) { 131 DPRINTF(("SIOCGIFFLAGS %s: error %d\n", 132 sr.svr4_ifr_name, error)); 133 return error; 134 } 135 136 sr.svr4_ifr_flags = bsd_to_svr4_flags(br.ifr_flags); 137 DPRINTF(("SIOCGIFFLAGS %s = %x\n", 138 sr.svr4_ifr_name, sr.svr4_ifr_flags)); 139 return copyout(&sr, data, sizeof(sr)); 140 } 141 142 case SVR4_32_SIOCGIFCONF: 143 { 144 struct svr4_32_ifconf sc; 145 struct oifconf ifc; 146 147 if ((error = copyin(data, &sc, sizeof(sc))) != 0) 148 return error; 149 150 DPRINTF(("ifreq %ld svr4_32_ifreq %ld ifc_len %d\n", 151 (unsigned long)sizeof(struct oifreq), 152 (unsigned long)sizeof(struct svr4_32_ifreq), 153 sc.svr4_32_ifc_len)); 154 155 ifc.ifc_len = sc.svr4_32_ifc_len; 156 ifc.ifc_buf = NETBSD32PTR64(sc.ifc_ifcu.ifcu_buf); 157 158 if ((error = (*ctl)(fp, OOSIOCGIFCONF, &ifc)) != 0) 159 return error; 160 161 DPRINTF(("SIOCGIFCONF\n")); 162 return 0; 163 } 164 165 166 default: 167 DPRINTF(("Unknown svr4_32 sockio %lx\n", cmd)); 168 return 0; /* ENOSYS really */ 169 } 170} 171