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1.1 ! root 1: /* ! 2: * Copyright (c) 1983 Regents of the University of California. ! 3: * All rights reserved. The Berkeley software License Agreement ! 4: * specifies the terms and conditions for redistribution. ! 5: */ ! 6: ! 7: #ifndef lint ! 8: static char sccsid[] = "@(#)inet.c 5.4 (Berkeley) 2/25/86"; ! 9: #endif not lint ! 10: ! 11: #include <sys/param.h> ! 12: #include <sys/socket.h> ! 13: #include <sys/socketvar.h> ! 14: #include <sys/mbuf.h> ! 15: #include <sys/protosw.h> ! 16: ! 17: #include <net/route.h> ! 18: #include <netinet/in.h> ! 19: #include <netinet/in_systm.h> ! 20: #include <netinet/in_pcb.h> ! 21: #include <netinet/ip.h> ! 22: #include <netinet/ip_icmp.h> ! 23: #include <netinet/icmp_var.h> ! 24: #include <netinet/ip_var.h> ! 25: #include <netinet/tcp.h> ! 26: #include <netinet/tcpip.h> ! 27: #include <netinet/tcp_seq.h> ! 28: #define TCPSTATES ! 29: #include <netinet/tcp_fsm.h> ! 30: #include <netinet/tcp_timer.h> ! 31: #include <netinet/tcp_var.h> ! 32: #include <netinet/tcp_debug.h> ! 33: #include <netinet/udp.h> ! 34: #include <netinet/udp_var.h> ! 35: ! 36: #include <netdb.h> ! 37: ! 38: struct inpcb inpcb; ! 39: struct tcpcb tcpcb; ! 40: struct socket sockb; ! 41: struct protosw proto; ! 42: extern int kmem; ! 43: extern int Aflag; ! 44: extern int aflag; ! 45: extern int nflag; ! 46: ! 47: static int first = 1; ! 48: char *inetname(); ! 49: ! 50: /* ! 51: * Print a summary of connections related to an Internet ! 52: * protocol. For TCP, also give state of connection. ! 53: * Listening processes (aflag) are suppressed unless the ! 54: * -a (all) flag is specified. ! 55: */ ! 56: protopr(off, name) ! 57: off_t off; ! 58: char *name; ! 59: { ! 60: struct inpcb cb; ! 61: register struct inpcb *prev, *next; ! 62: int istcp; ! 63: ! 64: if (off == 0) ! 65: return; ! 66: istcp = strcmp(name, "tcp") == 0; ! 67: klseek(kmem, off, 0); ! 68: read(kmem, &cb, sizeof (struct inpcb)); ! 69: inpcb = cb; ! 70: prev = (struct inpcb *)off; ! 71: if (inpcb.inp_next == (struct inpcb *)off) ! 72: return; ! 73: while (inpcb.inp_next != (struct inpcb *)off) { ! 74: char *cp; ! 75: ! 76: next = inpcb.inp_next; ! 77: klseek(kmem, (off_t)next, 0); ! 78: read(kmem, &inpcb, sizeof (inpcb)); ! 79: if (inpcb.inp_prev != prev) { ! 80: printf("???\n"); ! 81: break; ! 82: } ! 83: if (!aflag && ! 84: inet_lnaof(inpcb.inp_laddr.s_addr) == INADDR_ANY) { ! 85: prev = next; ! 86: continue; ! 87: } ! 88: klseek(kmem, (off_t)inpcb.inp_socket, 0); ! 89: read(kmem, &sockb, sizeof (sockb)); ! 90: if (istcp) { ! 91: klseek(kmem, (off_t)inpcb.inp_ppcb, 0); ! 92: read(kmem, &tcpcb, sizeof (tcpcb)); ! 93: } ! 94: if (first) { ! 95: printf("Active Internet connections"); ! 96: if (aflag) ! 97: printf(" (including servers)"); ! 98: putchar('\n'); ! 99: if (Aflag) ! 100: printf("%-8.8s ", "PCB"); ! 101: printf(Aflag ? ! 102: "%-5.5s %-6.6s %-6.6s %-18.18s %-18.18s %s\n" : ! 103: "%-5.5s %-6.6s %-6.6s %-22.22s %-22.22s %s\n", ! 104: "Proto", "Recv-Q", "Send-Q", ! 105: "Local Address", "Foreign Address", "(state)"); ! 106: first = 0; ! 107: } ! 108: if (Aflag) ! 109: if (istcp) ! 110: printf("%8x ", inpcb.inp_ppcb); ! 111: else ! 112: printf("%8x ", next); ! 113: printf("%-5.5s %6d %6d ", name, sockb.so_rcv.sb_cc, ! 114: sockb.so_snd.sb_cc); ! 115: inetprint(&inpcb.inp_laddr, inpcb.inp_lport, name); ! 116: inetprint(&inpcb.inp_faddr, inpcb.inp_fport, name); ! 117: if (istcp) { ! 118: if (tcpcb.t_state < 0 || tcpcb.t_state >= TCP_NSTATES) ! 119: printf(" %d", tcpcb.t_state); ! 120: else ! 121: printf(" %s", tcpstates[tcpcb.t_state]); ! 122: } ! 123: putchar('\n'); ! 124: prev = next; ! 125: } ! 126: } ! 127: ! 128: /* ! 129: * Dump TCP statistics structure. ! 130: */ ! 131: tcp_stats(off, name) ! 132: off_t off; ! 133: char *name; ! 134: { ! 135: struct tcpstat tcpstat; ! 136: ! 137: if (off == 0) ! 138: return; ! 139: klseek(kmem, off, 0); ! 140: read(kmem, (char *)&tcpstat, sizeof (tcpstat)); ! 141: printf("%s:\n\t%d incomplete header%s\n", name, ! 142: tcpstat.tcps_hdrops, plural(tcpstat.tcps_hdrops)); ! 143: printf("\t%d bad checksum%s\n", ! 144: tcpstat.tcps_badsum, plural(tcpstat.tcps_badsum)); ! 145: printf("\t%d bad header offset field%s\n", ! 146: tcpstat.tcps_badoff, plural(tcpstat.tcps_badoff)); ! 147: #ifdef notdef ! 148: printf("\t%d bad segment%s\n", ! 149: tcpstat.tcps_badsegs, plural(tcpstat.badsegs)); ! 150: printf("\t%d unacknowledged packet%s\n", ! 151: tcpstat.tcps_unack, plural(tcpstat.tcps_unack)); ! 152: #endif ! 153: } ! 154: ! 155: /* ! 156: * Dump UDP statistics structure. ! 157: */ ! 158: udp_stats(off, name) ! 159: off_t off; ! 160: char *name; ! 161: { ! 162: struct udpstat udpstat; ! 163: ! 164: if (off == 0) ! 165: return; ! 166: klseek(kmem, off, 0); ! 167: read(kmem, (char *)&udpstat, sizeof (udpstat)); ! 168: printf("%s:\n\t%d incomplete header%s\n", name, ! 169: udpstat.udps_hdrops, plural(udpstat.udps_hdrops)); ! 170: printf("\t%d bad data length field%s\n", ! 171: udpstat.udps_badlen, plural(udpstat.udps_badlen)); ! 172: printf("\t%d bad checksum%s\n", ! 173: udpstat.udps_badsum, plural(udpstat.udps_badsum)); ! 174: } ! 175: ! 176: /* ! 177: * Dump IP statistics structure. ! 178: */ ! 179: ip_stats(off, name) ! 180: off_t off; ! 181: char *name; ! 182: { ! 183: struct ipstat ipstat; ! 184: ! 185: if (off == 0) ! 186: return; ! 187: klseek(kmem, off, 0); ! 188: read(kmem, (char *)&ipstat, sizeof (ipstat)); ! 189: printf("%s:\n\t%d total packets received\n", name, ! 190: ipstat.ips_total); ! 191: printf("\t%d bad header checksum%s\n", ! 192: ipstat.ips_badsum, plural(ipstat.ips_badsum)); ! 193: printf("\t%d with size smaller than minimum\n", ipstat.ips_tooshort); ! 194: printf("\t%d with data size < data length\n", ipstat.ips_toosmall); ! 195: printf("\t%d with header length < data size\n", ipstat.ips_badhlen); ! 196: printf("\t%d with data length < header length\n", ipstat.ips_badlen); ! 197: printf("\t%d fragment%s received\n", ! 198: ipstat.ips_fragments, plural(ipstat.ips_fragments)); ! 199: printf("\t%d fragment%s dropped (dup or out of space)\n", ! 200: ipstat.ips_fragdropped, plural(ipstat.ips_fragdropped)); ! 201: printf("\t%d fragment%s dropped after timeout\n", ! 202: ipstat.ips_fragtimeout, plural(ipstat.ips_fragtimeout)); ! 203: printf("\t%d packet%s forwarded\n", ! 204: ipstat.ips_forward, plural(ipstat.ips_forward)); ! 205: printf("\t%d packet%s not forwardable\n", ! 206: ipstat.ips_cantforward, plural(ipstat.ips_cantforward)); ! 207: printf("\t%d redirect%s sent\n", ! 208: ipstat.ips_redirectsent, plural(ipstat.ips_redirectsent)); ! 209: } ! 210: ! 211: static char *icmpnames[] = { ! 212: "echo reply", ! 213: "#1", ! 214: "#2", ! 215: "destination unreachable", ! 216: "source quench", ! 217: "routing redirect", ! 218: "#6", ! 219: "#7", ! 220: "echo", ! 221: "#9", ! 222: "#10", ! 223: "time exceeded", ! 224: "parameter problem", ! 225: "time stamp", ! 226: "time stamp reply", ! 227: "information request", ! 228: "information request reply", ! 229: "address mask request", ! 230: "address mask reply", ! 231: }; ! 232: ! 233: /* ! 234: * Dump ICMP statistics. ! 235: */ ! 236: icmp_stats(off, name) ! 237: off_t off; ! 238: char *name; ! 239: { ! 240: struct icmpstat icmpstat; ! 241: register int i, first; ! 242: ! 243: if (off == 0) ! 244: return; ! 245: klseek(kmem, off, 0); ! 246: read(kmem, (char *)&icmpstat, sizeof (icmpstat)); ! 247: printf("%s:\n\t%d call%s to icmp_error\n", name, ! 248: icmpstat.icps_error, plural(icmpstat.icps_error)); ! 249: printf("\t%d error%s not generated 'cuz old message was icmp\n", ! 250: icmpstat.icps_oldicmp, plural(icmpstat.icps_oldicmp)); ! 251: for (first = 1, i = 0; i < ICMP_IREQREPLY + 1; i++) ! 252: if (icmpstat.icps_outhist[i] != 0) { ! 253: if (first) { ! 254: printf("\tOutput histogram:\n"); ! 255: first = 0; ! 256: } ! 257: printf("\t\t%s: %d\n", icmpnames[i], ! 258: icmpstat.icps_outhist[i]); ! 259: } ! 260: printf("\t%d message%s with bad code fields\n", ! 261: icmpstat.icps_badcode, plural(icmpstat.icps_badcode)); ! 262: printf("\t%d message%s < minimum length\n", ! 263: icmpstat.icps_tooshort, plural(icmpstat.icps_tooshort)); ! 264: printf("\t%d bad checksum%s\n", ! 265: icmpstat.icps_checksum, plural(icmpstat.icps_checksum)); ! 266: printf("\t%d message%s with bad length\n", ! 267: icmpstat.icps_badlen, plural(icmpstat.icps_badlen)); ! 268: for (first = 1, i = 0; i < ICMP_IREQREPLY + 1; i++) ! 269: if (icmpstat.icps_inhist[i] != 0) { ! 270: if (first) { ! 271: printf("\tInput histogram:\n"); ! 272: first = 0; ! 273: } ! 274: printf("\t\t%s: %d\n", icmpnames[i], ! 275: icmpstat.icps_inhist[i]); ! 276: } ! 277: printf("\t%d message response%s generated\n", ! 278: icmpstat.icps_reflect, plural(icmpstat.icps_reflect)); ! 279: } ! 280: ! 281: /* ! 282: * Pretty print an Internet address (net address + port). ! 283: * If the nflag was specified, use numbers instead of names. ! 284: */ ! 285: inetprint(in, port, proto) ! 286: register struct in_addr *in; ! 287: int port; ! 288: char *proto; ! 289: { ! 290: struct servent *sp = 0; ! 291: char line[80], *cp, *index(); ! 292: int width; ! 293: ! 294: sprintf(line, "%.*s.", (Aflag && !nflag) ? 12 : 16, inetname(*in)); ! 295: cp = index(line, '\0'); ! 296: if (!nflag && port) ! 297: sp = getservbyport(port, proto); ! 298: if (sp || port == 0) ! 299: sprintf(cp, "%.8s", sp ? sp->s_name : "*"); ! 300: else ! 301: sprintf(cp, "%d", ntohs((u_short)port)); ! 302: width = Aflag ? 18 : 22; ! 303: printf(" %-*.*s", width, width, line); ! 304: } ! 305: ! 306: /* ! 307: * Construct an Internet address representation. ! 308: * If the nflag has been supplied, give ! 309: * numeric value, otherwise try for symbolic name. ! 310: */ ! 311: char * ! 312: inetname(in) ! 313: struct in_addr in; ! 314: { ! 315: register char *cp; ! 316: static char line[50]; ! 317: struct hostent *hp; ! 318: struct netent *np; ! 319: static char domain[MAXHOSTNAMELEN + 1]; ! 320: static int first = 1; ! 321: ! 322: if (first && !nflag) { ! 323: first = 0; ! 324: if (gethostname(domain, MAXHOSTNAMELEN) == 0 && ! 325: (cp = index(domain, '.'))) ! 326: (void) strcpy(domain, cp + 1); ! 327: else ! 328: domain[0] = 0; ! 329: } ! 330: cp = 0; ! 331: if (!nflag && in.s_addr != INADDR_ANY) { ! 332: int net = inet_netof(in); ! 333: int lna = inet_lnaof(in); ! 334: ! 335: if (lna == INADDR_ANY) { ! 336: np = getnetbyaddr(net, AF_INET); ! 337: if (np) ! 338: cp = np->n_name; ! 339: } ! 340: if (cp == 0) { ! 341: hp = gethostbyaddr(&in, sizeof (in), AF_INET); ! 342: if (hp) { ! 343: if ((cp = index(hp->h_name, '.')) && ! 344: !strcmp(cp + 1, domain)) ! 345: *cp = 0; ! 346: cp = hp->h_name; ! 347: } ! 348: } ! 349: } ! 350: if (in.s_addr == INADDR_ANY) ! 351: strcpy(line, "*"); ! 352: else if (cp) ! 353: strcpy(line, cp); ! 354: else { ! 355: in.s_addr = ntohl(in.s_addr); ! 356: #define C(x) ((x) & 0xff) ! 357: sprintf(line, "%u.%u.%u.%u", C(in.s_addr >> 24), ! 358: C(in.s_addr >> 16), C(in.s_addr >> 8), C(in.s_addr)); ! 359: } ! 360: return (line); ! 361: }
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