1 /* $NetBSD: if_43.c,v 1.3 2010/11/06 17:20:07 christos Exp $ */ 2 3 /* 4 * Copyright (c) 1982, 1986, 1989, 1990, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. Neither the name of the University nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 * 31 * @(#)uipc_syscalls.c 8.4 (Berkeley) 2/21/94 32 */ 33 34 #include <sys/cdefs.h> 35 __KERNEL_RCSID(0, "$NetBSD: if_43.c,v 1.3 2010/11/06 17:20:07 christos Exp $"); 36 37 #if defined(_KERNEL_OPT) 38 #include "opt_compat_netbsd.h" 39 #endif 40 41 #include <sys/param.h> 42 #include <sys/systm.h> 43 #include <sys/filedesc.h> 44 #include <sys/kernel.h> 45 #include <sys/proc.h> 46 #include <sys/file.h> 47 #include <sys/socket.h> 48 #include <sys/socketvar.h> 49 #include <sys/stat.h> 50 #include <sys/ioctl.h> 51 #include <sys/fcntl.h> 52 #include <sys/malloc.h> 53 #include <sys/syslog.h> 54 #include <sys/unistd.h> 55 #include <sys/resourcevar.h> 56 #include <sys/mbuf.h> /* for MLEN */ 57 #include <sys/protosw.h> 58 59 #include <sys/mount.h> 60 #include <sys/syscallargs.h> 61 62 #include <net/if.h> 63 #include <net/bpf.h> 64 #include <net/route.h> 65 #include <netinet/in.h> 66 #include <netinet/in_systm.h> 67 #include <netinet/ip.h> 68 #include <net/if_gre.h> 69 #include <net/if_atm.h> 70 #include <net/if_tap.h> 71 #include <net80211/ieee80211_ioctl.h> 72 #include <netinet6/in6_var.h> 73 #include <netinet6/nd6.h> 74 #include <compat/sys/socket.h> 75 #include <compat/sys/sockio.h> 76 77 #include <compat/common/compat_util.h> 78 79 #include <uvm/uvm_extern.h> 80 81 u_long 82 compat_cvtcmd(u_long cmd) 83 { 84 u_long ncmd; 85 86 if (IOCPARM_LEN(cmd) != sizeof(struct oifreq)) 87 return cmd; 88 89 switch (cmd) { 90 case OSIOCSIFADDR: 91 return SIOCSIFADDR; 92 case OOSIOCGIFADDR: 93 return SIOCGIFADDR; 94 case OSIOCSIFDSTADDR: 95 return SIOCSIFDSTADDR; 96 case OOSIOCGIFDSTADDR: 97 return SIOCGIFDSTADDR; 98 case OSIOCSIFFLAGS: 99 return SIOCSIFFLAGS; 100 case OSIOCGIFFLAGS: 101 return SIOCGIFFLAGS; 102 case OOSIOCGIFBRDADDR: 103 return SIOCGIFBRDADDR; 104 case OSIOCSIFBRDADDR: 105 return SIOCSIFBRDADDR; 106 case OOSIOCGIFCONF: 107 return SIOCGIFCONF; 108 case OOSIOCGIFNETMASK: 109 return SIOCGIFNETMASK; 110 case OSIOCSIFNETMASK: 111 return SIOCSIFNETMASK; 112 case OSIOCGIFCONF: 113 return SIOCGIFCONF; 114 case OSIOCADDMULTI: 115 return SIOCADDMULTI; 116 case OSIOCDELMULTI: 117 return SIOCDELMULTI; 118 case OSIOCSIFMEDIA: 119 return SIOCSIFMEDIA; 120 case OSIOCGIFMTU: 121 return SIOCGIFMTU; 122 case OSIOCGIFDATA: 123 return SIOCGIFDATA; 124 case OSIOCZIFDATA: 125 return SIOCZIFDATA; 126 case OBIOCGETIF: 127 return BIOCGETIF; 128 case OBIOCSETIF: 129 return BIOCSETIF; 130 case OTAPGIFNAME: 131 return TAPGIFNAME; 132 default: 133 /* 134 * XXX: the following code should be removed and the 135 * needing treatment ioctls should move to the switch 136 * above. 137 */ 138 ncmd = ((cmd) & ~(IOCPARM_MASK << IOCPARM_SHIFT)) | 139 (sizeof(struct ifreq) << IOCPARM_SHIFT); 140 switch (ncmd) { 141 case BIOCGETIF: 142 case BIOCSETIF: 143 case GREDSOCK: 144 case GREGADDRD: 145 case GREGADDRS: 146 case GREGPROTO: 147 case GRESADDRD: 148 case GRESADDRS: 149 case GRESPROTO: 150 case GRESSOCK: 151 #ifdef COMPAT_20 152 case OSIOCG80211STATS: 153 case OSIOCG80211ZSTATS: 154 #endif /* COMPAT_20 */ 155 case SIOCADDMULTI: 156 case SIOCDELMULTI: 157 case SIOCDIFADDR: 158 case SIOCDIFADDR_IN6: 159 case SIOCDIFPHYADDR: 160 case SIOCGDEFIFACE_IN6: 161 case SIOCG80211NWID: 162 case SIOCG80211STATS: 163 case SIOCG80211ZSTATS: 164 case SIOCGIFADDR: 165 case SIOCGIFADDR_IN6: 166 case SIOCGIFAFLAG_IN6: 167 case SIOCGIFALIFETIME_IN6: 168 case SIOCGIFBRDADDR: 169 case SIOCGIFDLT: 170 case SIOCGIFDSTADDR: 171 case SIOCGIFDSTADDR_IN6: 172 case SIOCGIFFLAGS: 173 case SIOCGIFGENERIC: 174 case SIOCGIFMETRIC: 175 case SIOCGIFMTU: 176 case SIOCGIFNETMASK: 177 case SIOCGIFNETMASK_IN6: 178 case SIOCGIFPDSTADDR: 179 case SIOCGIFPDSTADDR_IN6: 180 case SIOCGIFPSRCADDR: 181 case SIOCGIFPSRCADDR_IN6: 182 case SIOCGIFSTAT_ICMP6: 183 case SIOCGIFSTAT_IN6: 184 case SIOCGPVCSIF: 185 case SIOCGVH: 186 case SIOCIFCREATE: 187 case SIOCIFDESTROY: 188 case SIOCS80211NWID: 189 case SIOCSDEFIFACE_IN6: 190 case SIOCSIFADDR: 191 case SIOCSIFADDR_IN6: 192 case SIOCSIFBRDADDR: 193 case SIOCSIFDSTADDR: 194 case SIOCSIFDSTADDR_IN6: 195 case SIOCSIFFLAGS: 196 case SIOCSIFGENERIC: 197 case SIOCSIFMEDIA: 198 case SIOCSIFMETRIC: 199 case SIOCSIFMTU: 200 case SIOCSIFNETMASK: 201 case SIOCSIFNETMASK_IN6: 202 case SIOCSNDFLUSH_IN6: 203 case SIOCSPFXFLUSH_IN6: 204 case SIOCSPVCSIF: 205 case SIOCSRTRFLUSH_IN6: 206 case SIOCSVH: 207 case TAPGIFNAME: 208 return ncmd; 209 default: 210 return cmd; 211 } 212 } 213 } 214 215 int 216 compat_ifioctl(struct socket *so, u_long ocmd, u_long cmd, void *data, 217 struct lwp *l) 218 { 219 int error; 220 struct ifreq *ifr = data; 221 struct ifnet *ifp = ifunit(ifr->ifr_name); 222 struct sockaddr *sa; 223 224 if (ifp == NULL) 225 return ENXIO; 226 227 switch (ocmd) { 228 case OSIOCSIFADDR: 229 case OSIOCSIFDSTADDR: 230 case OSIOCSIFBRDADDR: 231 case OSIOCSIFNETMASK: 232 sa = &ifr->ifr_addr; 233 #if BYTE_ORDER != BIG_ENDIAN 234 if (sa->sa_family == 0 && sa->sa_len < 16) { 235 sa->sa_family = sa->sa_len; 236 sa->sa_len = 16; 237 } 238 #else 239 if (sa->sa_len == 0) 240 sa->sa_len = 16; 241 #endif 242 break; 243 244 case OOSIOCGIFADDR: 245 cmd = SIOCGIFADDR; 246 break; 247 248 case OOSIOCGIFDSTADDR: 249 cmd = SIOCGIFDSTADDR; 250 break; 251 252 case OOSIOCGIFBRDADDR: 253 cmd = SIOCGIFBRDADDR; 254 break; 255 256 case OOSIOCGIFNETMASK: 257 cmd = SIOCGIFNETMASK; 258 } 259 260 error = (*so->so_proto->pr_usrreq)(so, PRU_CONTROL, 261 (struct mbuf *)cmd, (struct mbuf *)ifr, (struct mbuf *)ifp, l); 262 263 switch (ocmd) { 264 case OOSIOCGIFADDR: 265 case OOSIOCGIFDSTADDR: 266 case OOSIOCGIFBRDADDR: 267 case OOSIOCGIFNETMASK: 268 *(u_int16_t *)&ifr->ifr_addr = 269 ((struct sockaddr *)&ifr->ifr_addr)->sa_family; 270 } 271 return error; 272 } 273