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1.1 ! root 1: /* ! 2: * Copyright (c) 1983, 1988 Regents of the University of California. ! 3: * All rights reserved. ! 4: * ! 5: * Redistribution and use in source and binary forms are permitted ! 6: * provided that the above copyright notice and this paragraph are ! 7: * duplicated in all such forms and that any documentation, ! 8: * advertising materials, and other materials related to such ! 9: * distribution and use acknowledge that the software was developed ! 10: * by the University of California, Berkeley. The name of the ! 11: * University may not be used to endorse or promote products derived ! 12: * from this software without specific prior written permission. ! 13: * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR ! 14: * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED ! 15: * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. ! 16: */ ! 17: ! 18: #ifndef lint ! 19: static char sccsid[] = "@(#)if.c 5.8 (Berkeley) 6/29/88"; ! 20: #endif /* not lint */ ! 21: ! 22: #include <sys/types.h> ! 23: #include <sys/socket.h> ! 24: ! 25: #include <net/if.h> ! 26: #include <netinet/in.h> ! 27: #include <netinet/in_var.h> ! 28: #include <netns/ns.h> ! 29: ! 30: #include <stdio.h> ! 31: #include <signal.h> ! 32: ! 33: #define YES 1 ! 34: #define NO 0 ! 35: ! 36: extern int kmem; ! 37: extern int tflag; ! 38: extern int dflag; ! 39: extern int nflag; ! 40: extern char *interface; ! 41: extern int unit; ! 42: extern char *routename(), *netname(), *ns_phost(); ! 43: ! 44: /* ! 45: * Print a description of the network interfaces. ! 46: */ ! 47: intpr(interval, ifnetaddr) ! 48: int interval; ! 49: off_t ifnetaddr; ! 50: { ! 51: struct ifnet ifnet; ! 52: union { ! 53: struct ifaddr ifa; ! 54: struct in_ifaddr in; ! 55: } ifaddr; ! 56: off_t ifaddraddr; ! 57: char name[16]; ! 58: ! 59: if (ifnetaddr == 0) { ! 60: printf("ifnet: symbol not defined\n"); ! 61: return; ! 62: } ! 63: if (interval) { ! 64: sidewaysintpr((unsigned)interval, ifnetaddr); ! 65: return; ! 66: } ! 67: klseek(kmem, ifnetaddr, 0); ! 68: read(kmem, (char *)&ifnetaddr, sizeof ifnetaddr); ! 69: printf("%-5.5s %-5.5s %-11.11s %-15.15s %8.8s %5.5s %8.8s %5.5s", ! 70: "Name", "Mtu", "Network", "Address", "Ipkts", "Ierrs", ! 71: "Opkts", "Oerrs"); ! 72: printf(" %5s", "Coll"); ! 73: if (tflag) ! 74: printf(" %s", "Time"); ! 75: if (dflag) ! 76: printf(" %s", "Drop"); ! 77: putchar('\n'); ! 78: ifaddraddr = 0; ! 79: while (ifnetaddr || ifaddraddr) { ! 80: struct sockaddr_in *sin; ! 81: register char *cp; ! 82: int n; ! 83: char *index(); ! 84: struct in_addr inet_makeaddr(); ! 85: ! 86: if (ifaddraddr == 0) { ! 87: klseek(kmem, ifnetaddr, 0); ! 88: read(kmem, (char *)&ifnet, sizeof ifnet); ! 89: klseek(kmem, (off_t)ifnet.if_name, 0); ! 90: read(kmem, name, 16); ! 91: name[15] = '\0'; ! 92: ifnetaddr = (off_t) ifnet.if_next; ! 93: if (interface != 0 && ! 94: (strcmp(name, interface) != 0 || unit != ifnet.if_unit)) ! 95: continue; ! 96: cp = index(name, '\0'); ! 97: *cp++ = ifnet.if_unit + '0'; ! 98: if ((ifnet.if_flags&IFF_UP) == 0) ! 99: *cp++ = '*'; ! 100: *cp = '\0'; ! 101: ifaddraddr = (off_t)ifnet.if_addrlist; ! 102: } ! 103: printf("%-5.5s %-5d ", name, ifnet.if_mtu); ! 104: if (ifaddraddr == 0) { ! 105: printf("%-11.11s ", "none"); ! 106: printf("%-15.15s ", "none"); ! 107: } else { ! 108: klseek(kmem, ifaddraddr, 0); ! 109: read(kmem, (char *)&ifaddr, sizeof ifaddr); ! 110: ifaddraddr = (off_t)ifaddr.ifa.ifa_next; ! 111: switch (ifaddr.ifa.ifa_addr.sa_family) { ! 112: case AF_UNSPEC: ! 113: printf("%-11.11s ", "none"); ! 114: printf("%-15.15s ", "none"); ! 115: break; ! 116: case AF_INET: ! 117: sin = (struct sockaddr_in *)&ifaddr.in.ia_addr; ! 118: #ifdef notdef ! 119: /* can't use inet_makeaddr because kernel ! 120: * keeps nets unshifted. ! 121: */ ! 122: in = inet_makeaddr(ifaddr.in.ia_subnet, ! 123: INADDR_ANY); ! 124: printf("%-11.11s ", netname(in)); ! 125: #else ! 126: printf("%-11.11s ", ! 127: netname(htonl(ifaddr.in.ia_subnet), ! 128: ifaddr.in.ia_subnetmask)); ! 129: #endif ! 130: printf("%-15.15s ", routename(sin->sin_addr)); ! 131: break; ! 132: case AF_NS: ! 133: { ! 134: struct sockaddr_ns *sns = ! 135: (struct sockaddr_ns *)&ifaddr.in.ia_addr; ! 136: u_long net; ! 137: char netnum[8]; ! 138: char *ns_phost(); ! 139: ! 140: *(union ns_net *) &net = sns->sns_addr.x_net; ! 141: sprintf(netnum, "%lxH", ntohl(net)); ! 142: upHex(netnum); ! 143: printf("ns:%-8s ", netnum); ! 144: printf("%-15s ", ns_phost(sns)); ! 145: } ! 146: break; ! 147: default: ! 148: printf("af%2d: ", ifaddr.ifa.ifa_addr.sa_family); ! 149: for (cp = (char *)&ifaddr.ifa.ifa_addr + ! 150: sizeof(struct sockaddr) - 1; ! 151: cp >= ifaddr.ifa.ifa_addr.sa_data; --cp) ! 152: if (*cp != 0) ! 153: break; ! 154: n = cp - (char *)ifaddr.ifa.ifa_addr.sa_data + 1; ! 155: cp = (char *)ifaddr.ifa.ifa_addr.sa_data; ! 156: if (n <= 7) ! 157: while (--n) ! 158: printf("%02d.", *cp++ & 0xff); ! 159: else ! 160: while (--n) ! 161: printf("%02d", *cp++ & 0xff); ! 162: printf("%02d ", *cp & 0xff); ! 163: break; ! 164: } ! 165: } ! 166: printf("%8d %5d %8d %5d %5d", ! 167: ifnet.if_ipackets, ifnet.if_ierrors, ! 168: ifnet.if_opackets, ifnet.if_oerrors, ! 169: ifnet.if_collisions); ! 170: if (tflag) ! 171: printf(" %3d", ifnet.if_timer); ! 172: if (dflag) ! 173: printf(" %3d", ifnet.if_snd.ifq_drops); ! 174: putchar('\n'); ! 175: } ! 176: } ! 177: ! 178: #define MAXIF 10 ! 179: struct iftot { ! 180: char ift_name[16]; /* interface name */ ! 181: int ift_ip; /* input packets */ ! 182: int ift_ie; /* input errors */ ! 183: int ift_op; /* output packets */ ! 184: int ift_oe; /* output errors */ ! 185: int ift_co; /* collisions */ ! 186: int ift_dr; /* drops */ ! 187: } iftot[MAXIF]; ! 188: ! 189: u_char signalled; /* set if alarm goes off "early" */ ! 190: ! 191: /* ! 192: * Print a running summary of interface statistics. ! 193: * Repeat display every interval seconds, showing statistics ! 194: * collected over that interval. Assumes that interval is non-zero. ! 195: * First line printed at top of screen is always cumulative. ! 196: */ ! 197: sidewaysintpr(interval, off) ! 198: unsigned interval; ! 199: off_t off; ! 200: { ! 201: struct ifnet ifnet; ! 202: off_t firstifnet; ! 203: register struct iftot *ip, *total; ! 204: register int line; ! 205: struct iftot *lastif, *sum, *interesting; ! 206: int oldmask; ! 207: int catchalarm(); ! 208: ! 209: klseek(kmem, off, 0); ! 210: read(kmem, (char *)&firstifnet, sizeof (off_t)); ! 211: lastif = iftot; ! 212: sum = iftot + MAXIF - 1; ! 213: total = sum - 1; ! 214: interesting = iftot; ! 215: for (off = firstifnet, ip = iftot; off;) { ! 216: char *cp; ! 217: ! 218: klseek(kmem, off, 0); ! 219: read(kmem, (char *)&ifnet, sizeof ifnet); ! 220: klseek(kmem, (off_t)ifnet.if_name, 0); ! 221: ip->ift_name[0] = '('; ! 222: read(kmem, ip->ift_name + 1, 15); ! 223: if (interface && strcmp(ip->ift_name + 1, interface) == 0 && ! 224: unit == ifnet.if_unit) ! 225: interesting = ip; ! 226: ip->ift_name[15] = '\0'; ! 227: cp = index(ip->ift_name, '\0'); ! 228: sprintf(cp, "%d)", ifnet.if_unit); ! 229: ip++; ! 230: if (ip >= iftot + MAXIF - 2) ! 231: break; ! 232: off = (off_t) ifnet.if_next; ! 233: } ! 234: lastif = ip; ! 235: ! 236: (void)signal(SIGALRM, catchalarm); ! 237: signalled = NO; ! 238: (void)alarm(interval); ! 239: banner: ! 240: printf(" input %-6.6s output ", interesting->ift_name); ! 241: if (lastif - iftot > 0) { ! 242: if (dflag) ! 243: printf(" "); ! 244: printf(" input (Total) output"); ! 245: } ! 246: for (ip = iftot; ip < iftot + MAXIF; ip++) { ! 247: ip->ift_ip = 0; ! 248: ip->ift_ie = 0; ! 249: ip->ift_op = 0; ! 250: ip->ift_oe = 0; ! 251: ip->ift_co = 0; ! 252: ip->ift_dr = 0; ! 253: } ! 254: putchar('\n'); ! 255: printf("%8.8s %5.5s %8.8s %5.5s %5.5s ", ! 256: "packets", "errs", "packets", "errs", "colls"); ! 257: if (dflag) ! 258: printf("%5.5s ", "drops"); ! 259: if (lastif - iftot > 0) ! 260: printf(" %8.8s %5.5s %8.8s %5.5s %5.5s", ! 261: "packets", "errs", "packets", "errs", "colls"); ! 262: if (dflag) ! 263: printf(" %5.5s", "drops"); ! 264: putchar('\n'); ! 265: fflush(stdout); ! 266: line = 0; ! 267: loop: ! 268: sum->ift_ip = 0; ! 269: sum->ift_ie = 0; ! 270: sum->ift_op = 0; ! 271: sum->ift_oe = 0; ! 272: sum->ift_co = 0; ! 273: sum->ift_dr = 0; ! 274: for (off = firstifnet, ip = iftot; off && ip < lastif; ip++) { ! 275: klseek(kmem, off, 0); ! 276: read(kmem, (char *)&ifnet, sizeof ifnet); ! 277: if (ip == interesting) { ! 278: printf("%8d %5d %8d %5d %5d", ! 279: ifnet.if_ipackets - ip->ift_ip, ! 280: ifnet.if_ierrors - ip->ift_ie, ! 281: ifnet.if_opackets - ip->ift_op, ! 282: ifnet.if_oerrors - ip->ift_oe, ! 283: ifnet.if_collisions - ip->ift_co); ! 284: if (dflag) ! 285: printf(" %5d", ! 286: ifnet.if_snd.ifq_drops - ip->ift_dr); ! 287: } ! 288: ip->ift_ip = ifnet.if_ipackets; ! 289: ip->ift_ie = ifnet.if_ierrors; ! 290: ip->ift_op = ifnet.if_opackets; ! 291: ip->ift_oe = ifnet.if_oerrors; ! 292: ip->ift_co = ifnet.if_collisions; ! 293: ip->ift_dr = ifnet.if_snd.ifq_drops; ! 294: sum->ift_ip += ip->ift_ip; ! 295: sum->ift_ie += ip->ift_ie; ! 296: sum->ift_op += ip->ift_op; ! 297: sum->ift_oe += ip->ift_oe; ! 298: sum->ift_co += ip->ift_co; ! 299: sum->ift_dr += ip->ift_dr; ! 300: off = (off_t) ifnet.if_next; ! 301: } ! 302: if (lastif - iftot > 0) { ! 303: printf(" %8d %5d %8d %5d %5d", ! 304: sum->ift_ip - total->ift_ip, ! 305: sum->ift_ie - total->ift_ie, ! 306: sum->ift_op - total->ift_op, ! 307: sum->ift_oe - total->ift_oe, ! 308: sum->ift_co - total->ift_co); ! 309: if (dflag) ! 310: printf(" %5d", sum->ift_dr - total->ift_dr); ! 311: } ! 312: *total = *sum; ! 313: putchar('\n'); ! 314: fflush(stdout); ! 315: line++; ! 316: oldmask = sigblock(sigmask(SIGALRM)); ! 317: if (! signalled) { ! 318: sigpause(0); ! 319: } ! 320: sigsetmask(oldmask); ! 321: signalled = NO; ! 322: (void)alarm(interval); ! 323: if (line == 21) ! 324: goto banner; ! 325: goto loop; ! 326: /*NOTREACHED*/ ! 327: } ! 328: ! 329: /* ! 330: * Called if an interval expires before sidewaysintpr has completed a loop. ! 331: * Sets a flag to not wait for the alarm. ! 332: */ ! 333: catchalarm() ! 334: { ! 335: signalled = YES; ! 336: }
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