ifmcstat.c revision 1.8
1 /* $NetBSD: ifmcstat.c,v 1.8 2000/02/26 08:13:25 itojun Exp $ */ 2 3 /* 4 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. 5 * 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 project 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 PROJECT 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 PROJECT 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 32 #include <stdio.h> 33 #include <stdlib.h> 34 #include <fcntl.h> 35 #include <kvm.h> 36 #include <nlist.h> 37 #include <string.h> 38 #include <limits.h> 39 40 #include <sys/types.h> 41 #include <sys/socket.h> 42 #include <net/if.h> 43 #if defined(__FreeBSD__) && __FreeBSD__ >= 3 44 # include <net/if_var.h> 45 #endif 46 #include <net/if_types.h> 47 #include <net/if_dl.h> 48 #include <netinet/in.h> 49 #ifndef __NetBSD__ 50 # ifdef __FreeBSD__ 51 # define KERNEL 52 # endif 53 # include <netinet/if_ether.h> 54 # ifdef __FreeBSD__ 55 # undef KERNEL 56 # endif 57 #else 58 # include <net/if_ether.h> 59 #endif 60 #include <netinet/in_var.h> 61 #include <arpa/inet.h> 62 63 #include <netdb.h> 64 65 kvm_t *kvmd; 66 67 struct nlist nl[] = { 68 #define N_IFNET 0 69 { "_ifnet" }, 70 #if !(defined(__FreeBSD__) && __FreeBSD__ >= 3) 71 #define N_IN6_MK 1 72 { "_in6_mk" }, 73 #endif 74 { "" }, 75 }; 76 77 const char *inet6_n2a __P((struct in6_addr *)); 78 int main __P((void)); 79 char *ifname __P((struct ifnet *)); 80 void kread __P((u_long, void *, int)); 81 #if !(defined(__FreeBSD__) && __FreeBSD__ >= 3) 82 void acmc __P((struct ether_multi *)); 83 #endif 84 void if6_addrlist __P((struct ifaddr *)); 85 void in6_multilist __P((struct in6_multi *)); 86 struct in6_multi * in6_multientry __P((struct in6_multi *)); 87 88 #if !defined(__NetBSD__) && !(defined(__FreeBSD__) && __FreeBSD__ >= 3) && !defined(__OpenBSD__) 89 #ifdef __bsdi__ 90 struct ether_addr { 91 u_int8_t ether_addr_octet[6]; 92 }; 93 #endif 94 static char *ether_ntoa __P((struct ether_addr *)); 95 #endif 96 97 #define KREAD(addr, buf, type) \ 98 kread((u_long)addr, (void *)buf, sizeof(type)) 99 100 #ifdef N_IN6_MK 101 struct multi6_kludge { 102 LIST_ENTRY(multi6_kludge) mk_entry; 103 struct ifnet *mk_ifp; 104 struct in6_multihead mk_head; 105 }; 106 #endif 107 108 const char *inet6_n2a(p) 109 struct in6_addr *p; 110 { 111 static char buf[NI_MAXHOST]; 112 struct sockaddr_in6 sin6; 113 u_int32_t scopeid; 114 #ifdef NI_WITHSCOPEID 115 const int niflags = NI_NUMERICHOST | NI_WITHSCOPEID; 116 #else 117 const int niflags = NI_NUMERICHOST; 118 #endif 119 120 memset(&sin6, 0, sizeof(sin6)); 121 sin6.sin6_family = AF_INET6; 122 sin6.sin6_len = sizeof(struct sockaddr_in6); 123 sin6.sin6_addr = *p; 124 if (IN6_IS_ADDR_LINKLOCAL(p) || IN6_IS_ADDR_MC_LINKLOCAL(p)) { 125 scopeid = ntohs(*(u_int16_t *)&sin6.sin6_addr.s6_addr[2]); 126 if (scopeid) { 127 sin6.sin6_scope_id = scopeid; 128 sin6.sin6_addr.s6_addr[2] = 0; 129 sin6.sin6_addr.s6_addr[3] = 0; 130 } 131 } 132 if (getnameinfo((struct sockaddr *)&sin6, sin6.sin6_len, 133 buf, sizeof(buf), NULL, 0, niflags) == 0) 134 return buf; 135 else 136 return "(invalid)"; 137 } 138 139 int main() 140 { 141 char buf[_POSIX2_LINE_MAX], ifname[IFNAMSIZ]; 142 struct ifnet *ifp, *nifp, ifnet; 143 #ifndef __NetBSD__ 144 struct arpcom arpcom; 145 #else 146 struct ethercom ec; 147 struct sockaddr_dl sdl; 148 #endif 149 150 if ((kvmd = kvm_openfiles(NULL, NULL, NULL, O_RDONLY, buf)) == NULL) { 151 perror("kvm_openfiles"); 152 exit(1); 153 } 154 if (kvm_nlist(kvmd, nl) < 0) { 155 perror("kvm_nlist"); 156 exit(1); 157 } 158 if (nl[N_IFNET].n_value == 0) { 159 printf("symbol %s not found\n", nl[N_IFNET].n_name); 160 exit(1); 161 } 162 KREAD(nl[N_IFNET].n_value, &ifp, struct ifnet *); 163 while (ifp) { 164 KREAD(ifp, &ifnet, struct ifnet); 165 printf("%s:\n", if_indextoname(ifnet.if_index, ifname)); 166 167 #if defined(__NetBSD__) || defined(__OpenBSD__) 168 if6_addrlist(ifnet.if_addrlist.tqh_first); 169 nifp = ifnet.if_list.tqe_next; 170 #elif defined(__FreeBSD__) && __FreeBSD__ >= 3 171 if6_addrlist(TAILQ_FIRST(&ifnet.if_addrhead)); 172 nifp = ifnet.if_link.tqe_next; 173 #else 174 if6_addrlist(ifnet.if_addrlist); 175 nifp = ifnet.if_next; 176 #endif 177 178 #ifdef __NetBSD__ 179 KREAD(ifnet.if_sadl, &sdl, struct sockaddr_dl); 180 if (sdl.sdl_type == IFT_ETHER) { 181 printf("\tenaddr %s", 182 ether_ntoa((struct ether_addr *)LLADDR(&sdl))); 183 KREAD(ifp, &ec, struct ethercom); 184 printf(" multicnt %d", ec.ec_multicnt); 185 acmc(ec.ec_multiaddrs.lh_first); 186 printf("\n"); 187 } 188 #elif defined(__FreeBSD__) && __FreeBSD__ >= 3 189 /* not supported */ 190 #else 191 if (ifnet.if_type == IFT_ETHER) { 192 KREAD(ifp, &arpcom, struct arpcom); 193 printf("\tenaddr %s", 194 ether_ntoa((struct ether_addr *)arpcom.ac_enaddr)); 195 KREAD(ifp, &arpcom, struct arpcom); 196 printf(" multicnt %d", arpcom.ac_multicnt); 197 #ifdef __OpenBSD__ 198 acmc(arpcom.ac_multiaddrs.lh_first); 199 #else 200 acmc(arpcom.ac_multiaddrs); 201 #endif 202 printf("\n"); 203 } 204 #endif 205 206 ifp = nifp; 207 } 208 209 exit(0); 210 /*NOTREACHED*/ 211 } 212 213 char *ifname(ifp) 214 struct ifnet *ifp; 215 { 216 static char buf[BUFSIZ]; 217 #if defined(__NetBSD__) || defined(__OpenBSD__) 218 struct ifnet ifnet; 219 #endif 220 221 #if defined(__NetBSD__) || defined(__OpenBSD__) 222 KREAD(ifp, &ifnet, struct ifnet); 223 strncpy(buf, ifnet.if_xname, BUFSIZ); 224 #else 225 KREAD(ifp->if_name, buf, IFNAMSIZ); 226 #endif 227 return buf; 228 } 229 230 void kread(addr, buf, len) 231 u_long addr; 232 void *buf; 233 int len; 234 { 235 if (kvm_read(kvmd, addr, buf, len) != len) { 236 perror("kvm_read"); 237 exit(1); 238 } 239 } 240 241 #if !(defined(__FreeBSD__) && __FreeBSD__ >= 3) 242 void acmc(am) 243 struct ether_multi *am; 244 { 245 struct ether_multi em; 246 247 while (am) { 248 KREAD(am, &em, struct ether_multi); 249 250 printf("\n\t\t"); 251 printf("%s -- ", ether_ntoa((struct ether_addr *)em.enm_addrlo)); 252 printf("%s ", ether_ntoa((struct ether_addr *)&em.enm_addrhi)); 253 printf("%d", em.enm_refcount); 254 #if !defined(__NetBSD__) && !defined(__OpenBSD__) 255 am = em.enm_next; 256 #else 257 am = em.enm_list.le_next; 258 #endif 259 } 260 } 261 #endif 262 263 void 264 if6_addrlist(ifap) 265 struct ifaddr *ifap; 266 { 267 struct ifaddr ifa; 268 struct sockaddr sa; 269 struct in6_ifaddr if6a; 270 struct in6_multi *mc = 0; 271 struct ifaddr *ifap0; 272 273 ifap0 = ifap; 274 while (ifap) { 275 KREAD(ifap, &ifa, struct ifaddr); 276 if (ifa.ifa_addr == NULL) 277 goto nextifap; 278 KREAD(ifa.ifa_addr, &sa, struct sockaddr); 279 if (sa.sa_family != PF_INET6) 280 goto nextifap; 281 KREAD(ifap, &if6a, struct in6_ifaddr); 282 printf("\tinet6 %s\n", inet6_n2a(&if6a.ia_addr.sin6_addr)); 283 #if !(defined(__FreeBSD__) && __FreeBSD__ >= 3) 284 mc = mc ? mc : if6a.ia6_multiaddrs.lh_first; 285 #endif 286 nextifap: 287 #if defined(__NetBSD__) || defined(__OpenBSD__) 288 ifap = ifa.ifa_list.tqe_next; 289 #elif defined(__FreeBSD__) && __FreeBSD__ >= 3 290 ifap = ifa.ifa_link.tqe_next; 291 #else 292 ifap = ifa.ifa_next; 293 #endif /* __FreeBSD__ >= 3 */ 294 } 295 #if defined(__FreeBSD__) && __FreeBSD__ >= 3 296 if (ifap0) { 297 struct ifnet ifnet; 298 struct ifmultiaddr ifm, *ifmp = 0; 299 struct sockaddr_in6 sin6; 300 struct in6_multi in6m; 301 struct sockaddr_dl sdl; 302 int in6_multilist_done = 0; 303 304 KREAD(ifap0, &ifa, struct ifaddr); 305 KREAD(ifa.ifa_ifp, &ifnet, struct ifnet); 306 if (ifnet.if_multiaddrs.lh_first) 307 ifmp = ifnet.if_multiaddrs.lh_first; 308 while (ifmp) { 309 KREAD(ifmp, &ifm, struct ifmultiaddr); 310 if (ifm.ifma_addr == NULL) 311 goto nextmulti; 312 KREAD(ifm.ifma_addr, &sa, struct sockaddr); 313 if (sa.sa_family != AF_INET6) 314 goto nextmulti; 315 (void)in6_multientry((struct in6_multi *) 316 ifm.ifma_protospec); 317 if (ifm.ifma_lladdr == 0) 318 goto nextmulti; 319 KREAD(ifm.ifma_lladdr, &sdl, struct sockaddr_dl); 320 printf("\t\t\tmcast-macaddr %s multicnt %d\n", 321 ether_ntoa((struct ether_addr *)LLADDR(&sdl)), 322 ifm.ifma_refcount); 323 nextmulti: 324 ifmp = ifm.ifma_link.le_next; 325 } 326 } 327 #else 328 if (mc) 329 in6_multilist(mc); 330 #endif 331 #ifdef N_IN6_MK 332 if (nl[N_IN6_MK].n_value != 0) { 333 LIST_HEAD(in6_mktype, multi6_kludge) in6_mk; 334 struct multi6_kludge *mkp, mk; 335 char *nam; 336 337 KREAD(nl[N_IN6_MK].n_value, &in6_mk, struct in6_mktype); 338 KREAD(ifap0, &ifa, struct ifaddr); 339 340 nam = strdup(ifname(ifa.ifa_ifp)); 341 342 for (mkp = in6_mk.lh_first; mkp; mkp = mk.mk_entry.le_next) { 343 KREAD(mkp, &mk, struct multi6_kludge); 344 if (strcmp(nam, ifname(mk.mk_ifp)) == 0 && 345 mk.mk_head.lh_first) { 346 printf("\t(on kludge entry for %s)\n", nam); 347 in6_multilist(mk.mk_head.lh_first); 348 } 349 } 350 351 free(nam); 352 } 353 #endif 354 } 355 356 struct in6_multi * 357 in6_multientry(mc) 358 struct in6_multi *mc; 359 { 360 struct in6_multi multi; 361 362 KREAD(mc, &multi, struct in6_multi); 363 printf("\t\tgroup %s", inet6_n2a(&multi.in6m_addr)); 364 printf(" refcnt %u\n", multi.in6m_refcount); 365 return(multi.in6m_entry.le_next); 366 } 367 368 void 369 in6_multilist(mc) 370 struct in6_multi *mc; 371 { 372 while (mc) 373 mc = in6_multientry(mc); 374 } 375 376 #if !defined(__NetBSD__) && !(defined(__FreeBSD__) && __FreeBSD__ >= 3) && !defined(__OpenBSD__) 377 static char * 378 ether_ntoa(e) 379 struct ether_addr *e; 380 { 381 static char buf[20]; 382 u_char *p; 383 384 p = (u_char *)e; 385 386 snprintf(buf, sizeof(buf), "%02x:%02x:%02x:%02x:%02x:%02x", 387 p[0], p[1], p[2], p[3], p[4], p[5]); 388 return buf; 389 } 390 #endif 391
Indexes created Tue Sep 23 02:09:52 GMT 2025