svr4_sockio.c revision 65302
1/* 2 * Copyright (c) 1998 Mark Newton 3 * Copyright (c) 1995 Christos Zoulas 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. The name of the author may not be used to endorse or promote products 15 * derived from this software without specific prior written permission 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 * 28 * $FreeBSD: head/sys/compat/svr4/svr4_sockio.c 65302 2000-08-31 22:54:09Z obrien $ 29 */ 30 31#include <sys/param.h> 32#include <sys/proc.h> 33#include <sys/systm.h> 34#include <sys/file.h> 35#include <sys/filedesc.h> 36#include <sys/sockio.h> 37#include <sys/socket.h> 38#include <net/if.h> 39 40 41#include <compat/svr4/svr4.h> 42#include <compat/svr4/svr4_util.h> 43#include <compat/svr4/svr4_ioctl.h> 44#include <compat/svr4/svr4_sockio.h> 45 46static int bsd_to_svr4_flags __P((int)); 47 48#define bsd_to_svr4_flag(a) \ 49 if (bf & __CONCAT(I,a)) sf |= __CONCAT(SVR4_I,a) 50 51static int 52bsd_to_svr4_flags(bf) 53 int bf; 54{ 55 int sf = 0; 56 bsd_to_svr4_flag(FF_UP); 57 bsd_to_svr4_flag(FF_BROADCAST); 58 bsd_to_svr4_flag(FF_DEBUG); 59 bsd_to_svr4_flag(FF_LOOPBACK); 60 bsd_to_svr4_flag(FF_POINTOPOINT); 61#if defined(IFF_NOTRAILERS) 62 bsd_to_svr4_flag(FF_NOTRAILERS); 63#endif 64 bsd_to_svr4_flag(FF_RUNNING); 65 bsd_to_svr4_flag(FF_NOARP); 66 bsd_to_svr4_flag(FF_PROMISC); 67 bsd_to_svr4_flag(FF_ALLMULTI); 68 bsd_to_svr4_flag(FF_MULTICAST); 69 return sf; 70} 71 72int 73svr4_sock_ioctl(fp, p, retval, fd, cmd, data) 74 struct file *fp; 75 struct proc *p; 76 register_t *retval; 77 int fd; 78 u_long cmd; 79 caddr_t data; 80{ 81 int error; 82 83 *retval = 0; 84 85 switch (cmd) { 86 case SVR4_SIOCGIFNUM: 87 { 88 struct ifnet *ifp; 89 struct ifaddr *ifa; 90 int ifnum = 0; 91 92 /* 93 * This does not return the number of physical 94 * interfaces (if_index), but the number of interfaces 95 * + addresses like ifconf() does, because this number 96 * is used by code that will call SVR4_SIOCGIFCONF to 97 * find the space needed for SVR4_SIOCGIFCONF. So we 98 * count the number of ifreq entries that the next 99 * SVR4_SIOCGIFCONF will return. Maybe a more correct 100 * fix is to make SVR4_SIOCGIFCONF return only one 101 * entry per physical interface? 102 */ 103 104 for (ifp = ifnet.tqh_first; 105 ifp != 0; ifp = ifp->if_link.tqe_next) 106 if ((ifa = ifp->if_addrhead.tqh_first) == NULL) 107 ifnum++; 108 else 109 for (;ifa != NULL; 110 ifa = ifa->ifa_link.tqe_next) 111 ifnum++; 112 113 114 DPRINTF(("SIOCGIFNUM %d\n", ifnum)); 115 return copyout(&ifnum, data, sizeof(ifnum)); 116 } 117 118 case SVR4_SIOCGIFFLAGS: 119 { 120 struct ifreq br; 121 struct svr4_ifreq sr; 122 123 if ((error = copyin(data, &sr, sizeof(sr))) != 0) 124 return error; 125 126 (void) strncpy(br.ifr_name, sr.svr4_ifr_name, 127 sizeof(br.ifr_name)); 128 if ((error = fo_ioctl(fp, SIOCGIFFLAGS, 129 (caddr_t) &br, p)) != 0) { 130 DPRINTF(("SIOCGIFFLAGS (%s) %s: error %d\n", 131 br.ifr_name, sr.svr4_ifr_name, error)); 132 return error; 133 } 134 135 sr.svr4_ifr_flags = bsd_to_svr4_flags(br.ifr_flags); 136 DPRINTF(("SIOCGIFFLAGS %s = %x\n", 137 sr.svr4_ifr_name, sr.svr4_ifr_flags)); 138 return copyout(&sr, data, sizeof(sr)); 139 } 140 141 case SVR4_SIOCGIFCONF: 142 { 143 struct svr4_ifconf sc; 144 145 if ((error = copyin(data, &sc, sizeof(sc))) != 0) 146 return error; 147 148 DPRINTF(("ifreq %d svr4_ifreq %d ifc_len %d\n", 149 sizeof(struct ifreq), sizeof(struct svr4_ifreq), 150 sc.svr4_ifc_len)); 151 152 if ((error = fo_ioctl(fp, OSIOCGIFCONF, 153 (caddr_t) &sc, p)) != 0) 154 return error; 155 156 DPRINTF(("SIOCGIFCONF\n")); 157 return 0; 158 } 159 160 161 default: 162 DPRINTF(("Unknown svr4 sockio %lx\n", cmd)); 163 return 0; /* ENOSYS really */ 164 } 165} 166