Annotation of src/usr.bin/netstat/ns.c, Revision 1.1
1.1 ! deraadt 1: /* $NetBSD: ns.c,v 1.8 1995/10/03 21:42:46 thorpej Exp $ */
! 2:
! 3: /*
! 4: * Copyright (c) 1983, 1988, 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. All advertising materials mentioning features or use of this software
! 16: * must display the following acknowledgement:
! 17: * This product includes software developed by the University of
! 18: * California, Berkeley and its contributors.
! 19: * 4. Neither the name of the University nor the names of its contributors
! 20: * may be used to endorse or promote products derived from this software
! 21: * without specific prior written permission.
! 22: *
! 23: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
! 24: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
! 25: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
! 26: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
! 27: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
! 28: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
! 29: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
! 30: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
! 31: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
! 32: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
! 33: * SUCH DAMAGE.
! 34: */
! 35:
! 36: #ifndef lint
! 37: #if 0
! 38: static char sccsid[] = "from: @(#)ns.c 8.1 (Berkeley) 6/6/93";
! 39: #else
! 40: static char *rcsid = "$NetBSD: ns.c,v 1.8 1995/10/03 21:42:46 thorpej Exp $";
! 41: #endif
! 42: #endif /* not lint */
! 43:
! 44: #include <sys/param.h>
! 45: #include <sys/socket.h>
! 46: #include <sys/socketvar.h>
! 47: #include <sys/mbuf.h>
! 48: #include <sys/protosw.h>
! 49:
! 50: #include <net/route.h>
! 51: #include <net/if.h>
! 52:
! 53: #include <netinet/tcp_fsm.h>
! 54:
! 55: #include <netns/ns.h>
! 56: #include <netns/ns_pcb.h>
! 57: #include <netns/idp.h>
! 58: #include <netns/idp_var.h>
! 59: #include <netns/ns_error.h>
! 60: #include <netns/sp.h>
! 61: #include <netns/spidp.h>
! 62: #include <netns/spp_timer.h>
! 63: #include <netns/spp_var.h>
! 64: #define SANAMES
! 65: #include <netns/spp_debug.h>
! 66:
! 67: #include <nlist.h>
! 68: #include <errno.h>
! 69: #include <stdio.h>
! 70: #include <string.h>
! 71: #include "netstat.h"
! 72:
! 73: struct nspcb nspcb;
! 74: struct sppcb sppcb;
! 75: struct socket sockb;
! 76:
! 77: static char *ns_prpr __P((struct ns_addr *));
! 78: static void ns_erputil __P((int, int));
! 79:
! 80: static int first = 1;
! 81:
! 82: /*
! 83: * Print a summary of connections related to a Network Systems
! 84: * protocol. For SPP, also give state of connection.
! 85: * Listening processes (aflag) are suppressed unless the
! 86: * -a (all) flag is specified.
! 87: */
! 88:
! 89: void
! 90: nsprotopr(off, name)
! 91: u_long off;
! 92: char *name;
! 93: {
! 94: struct nspcb cb;
! 95: register struct nspcb *prev, *next;
! 96: int isspp;
! 97:
! 98: if (off == 0)
! 99: return;
! 100: isspp = strcmp(name, "spp") == 0;
! 101: kread(off, (char *)&cb, sizeof (struct nspcb));
! 102: nspcb = cb;
! 103: prev = (struct nspcb *)off;
! 104: if (nspcb.nsp_next == (struct nspcb *)off)
! 105: return;
! 106: for (;nspcb.nsp_next != (struct nspcb *)off; prev = next) {
! 107: u_long ppcb;
! 108:
! 109: next = nspcb.nsp_next;
! 110: kread((u_long)next, (char *)&nspcb, sizeof (nspcb));
! 111: if (nspcb.nsp_prev != prev) {
! 112: printf("???\n");
! 113: break;
! 114: }
! 115: if (!aflag && ns_nullhost(nspcb.nsp_faddr) ) {
! 116: continue;
! 117: }
! 118: kread((u_long)nspcb.nsp_socket,
! 119: (char *)&sockb, sizeof (sockb));
! 120: ppcb = (u_long) nspcb.nsp_pcb;
! 121: if (ppcb) {
! 122: if (isspp) {
! 123: kread(ppcb, (char *)&sppcb, sizeof (sppcb));
! 124: } else continue;
! 125: } else
! 126: if (isspp) continue;
! 127: if (first) {
! 128: printf("Active NS connections");
! 129: if (aflag)
! 130: printf(" (including servers)");
! 131: putchar('\n');
! 132: if (Aflag)
! 133: printf("%-8.8s ", "PCB");
! 134: printf(Aflag ?
! 135: "%-5.5s %-6.6s %-6.6s %-18.18s %-18.18s %s\n" :
! 136: "%-5.5s %-6.6s %-6.6s %-22.22s %-22.22s %s\n",
! 137: "Proto", "Recv-Q", "Send-Q",
! 138: "Local Address", "Foreign Address", "(state)");
! 139: first = 0;
! 140: }
! 141: if (Aflag)
! 142: printf("%8x ", ppcb);
! 143: printf("%-5.5s %6d %6d ", name, sockb.so_rcv.sb_cc,
! 144: sockb.so_snd.sb_cc);
! 145: printf(" %-22.22s", ns_prpr(&nspcb.nsp_laddr));
! 146: printf(" %-22.22s", ns_prpr(&nspcb.nsp_faddr));
! 147: if (isspp) {
! 148: extern char *tcpstates[];
! 149: if (sppcb.s_state >= TCP_NSTATES)
! 150: printf(" %d", sppcb.s_state);
! 151: else
! 152: printf(" %s", tcpstates[sppcb.s_state]);
! 153: }
! 154: putchar('\n');
! 155: prev = next;
! 156: }
! 157: }
! 158: #define ANY(x,y,z) \
! 159: ((x) ? printf("\t%d %s%s%s -- %s\n",x,y,plural(x),z,"x") : 0)
! 160:
! 161: /*
! 162: * Dump SPP statistics structure.
! 163: */
! 164: void
! 165: spp_stats(off, name)
! 166: u_long off;
! 167: char *name;
! 168: {
! 169: struct spp_istat spp_istat;
! 170: #define sppstat spp_istat.newstats
! 171:
! 172: if (off == 0)
! 173: return;
! 174: kread(off, (char *)&spp_istat, sizeof (spp_istat));
! 175: printf("%s:\n", name);
! 176: ANY(spp_istat.nonucn, "connection", " dropped due to no new sockets ");
! 177: ANY(spp_istat.gonawy, "connection", " terminated due to our end dying");
! 178: ANY(spp_istat.nonucn, "connection",
! 179: " dropped due to inability to connect");
! 180: ANY(spp_istat.noconn, "connection",
! 181: " dropped due to inability to connect");
! 182: ANY(spp_istat.notme, "connection",
! 183: " incompleted due to mismatched id's");
! 184: ANY(spp_istat.wrncon, "connection", " dropped due to mismatched id's");
! 185: ANY(spp_istat.bdreas, "packet", " dropped out of sequence");
! 186: ANY(spp_istat.lstdup, "packet", " duplicating the highest packet");
! 187: ANY(spp_istat.notyet, "packet", " refused as exceeding allocation");
! 188: ANY(sppstat.spps_connattempt, "connection", " initiated");
! 189: ANY(sppstat.spps_accepts, "connection", " accepted");
! 190: ANY(sppstat.spps_connects, "connection", " established");
! 191: ANY(sppstat.spps_drops, "connection", " dropped");
! 192: ANY(sppstat.spps_conndrops, "embryonic connection", " dropped");
! 193: ANY(sppstat.spps_closed, "connection", " closed (includes drops)");
! 194: ANY(sppstat.spps_segstimed, "packet", " where we tried to get rtt");
! 195: ANY(sppstat.spps_rttupdated, "time", " we got rtt");
! 196: ANY(sppstat.spps_delack, "delayed ack", " sent");
! 197: ANY(sppstat.spps_timeoutdrop, "connection", " dropped in rxmt timeout");
! 198: ANY(sppstat.spps_rexmttimeo, "retransmit timeout", "");
! 199: ANY(sppstat.spps_persisttimeo, "persist timeout", "");
! 200: ANY(sppstat.spps_keeptimeo, "keepalive timeout", "");
! 201: ANY(sppstat.spps_keepprobe, "keepalive probe", " sent");
! 202: ANY(sppstat.spps_keepdrops, "connection", " dropped in keepalive");
! 203: ANY(sppstat.spps_sndtotal, "total packet", " sent");
! 204: ANY(sppstat.spps_sndpack, "data packet", " sent");
! 205: ANY(sppstat.spps_sndbyte, "data byte", " sent");
! 206: ANY(sppstat.spps_sndrexmitpack, "data packet", " retransmitted");
! 207: ANY(sppstat.spps_sndrexmitbyte, "data byte", " retransmitted");
! 208: ANY(sppstat.spps_sndacks, "ack-only packet", " sent");
! 209: ANY(sppstat.spps_sndprobe, "window probe", " sent");
! 210: ANY(sppstat.spps_sndurg, "packet", " sent with URG only");
! 211: ANY(sppstat.spps_sndwinup, "window update-only packet", " sent");
! 212: ANY(sppstat.spps_sndctrl, "control (SYN|FIN|RST) packet", " sent");
! 213: ANY(sppstat.spps_sndvoid, "request", " to send a non-existant packet");
! 214: ANY(sppstat.spps_rcvtotal, "total packet", " received");
! 215: ANY(sppstat.spps_rcvpack, "packet", " received in sequence");
! 216: ANY(sppstat.spps_rcvbyte, "byte", " received in sequence");
! 217: ANY(sppstat.spps_rcvbadsum, "packet", " received with ccksum errs");
! 218: ANY(sppstat.spps_rcvbadoff, "packet", " received with bad offset");
! 219: ANY(sppstat.spps_rcvshort, "packet", " received too short");
! 220: ANY(sppstat.spps_rcvduppack, "duplicate-only packet", " received");
! 221: ANY(sppstat.spps_rcvdupbyte, "duplicate-only byte", " received");
! 222: ANY(sppstat.spps_rcvpartduppack, "packet", " with some duplicate data");
! 223: ANY(sppstat.spps_rcvpartdupbyte, "dup. byte", " in part-dup. packet");
! 224: ANY(sppstat.spps_rcvoopack, "out-of-order packet", " received");
! 225: ANY(sppstat.spps_rcvoobyte, "out-of-order byte", " received");
! 226: ANY(sppstat.spps_rcvpackafterwin, "packet", " with data after window");
! 227: ANY(sppstat.spps_rcvbyteafterwin, "byte", " rcvd after window");
! 228: ANY(sppstat.spps_rcvafterclose, "packet", " rcvd after 'close'");
! 229: ANY(sppstat.spps_rcvwinprobe, "rcvd window probe packet", "");
! 230: ANY(sppstat.spps_rcvdupack, "rcvd duplicate ack", "");
! 231: ANY(sppstat.spps_rcvacktoomuch, "rcvd ack", " for unsent data");
! 232: ANY(sppstat.spps_rcvackpack, "rcvd ack packet", "");
! 233: ANY(sppstat.spps_rcvackbyte, "byte", " acked by rcvd acks");
! 234: ANY(sppstat.spps_rcvwinupd, "rcvd window update packet", "");
! 235: }
! 236: #undef ANY
! 237: #define ANY(x,y,z) ((x) ? printf("\t%d %s%s%s\n",x,y,plural(x),z) : 0)
! 238:
! 239: /*
! 240: * Dump IDP statistics structure.
! 241: */
! 242: void
! 243: idp_stats(off, name)
! 244: u_long off;
! 245: char *name;
! 246: {
! 247: struct idpstat idpstat;
! 248:
! 249: if (off == 0)
! 250: return;
! 251: kread(off, (char *)&idpstat, sizeof (idpstat));
! 252: printf("%s:\n", name);
! 253: ANY(idpstat.idps_toosmall, "packet", " smaller than a header");
! 254: ANY(idpstat.idps_tooshort, "packet", " smaller than advertised");
! 255: ANY(idpstat.idps_badsum, "packet", " with bad checksums");
! 256: }
! 257:
! 258: static struct {
! 259: u_short code;
! 260: char *name;
! 261: char *where;
! 262: } ns_errnames[] = {
! 263: {0, "Unspecified Error", " at Destination"},
! 264: {1, "Bad Checksum", " at Destination"},
! 265: {2, "No Listener", " at Socket"},
! 266: {3, "Packet", " Refused due to lack of space at Destination"},
! 267: {01000, "Unspecified Error", " while gatewayed"},
! 268: {01001, "Bad Checksum", " while gatewayed"},
! 269: {01002, "Packet", " forwarded too many times"},
! 270: {01003, "Packet", " too large to be forwarded"},
! 271: {-1, 0, 0},
! 272: };
! 273:
! 274: /*
! 275: * Dump NS Error statistics structure.
! 276: */
! 277: /*ARGSUSED*/
! 278: void
! 279: nserr_stats(off, name)
! 280: u_long off;
! 281: char *name;
! 282: {
! 283: struct ns_errstat ns_errstat;
! 284: register int j;
! 285: register int histoprint = 1;
! 286: int z;
! 287:
! 288: if (off == 0)
! 289: return;
! 290: kread(off, (char *)&ns_errstat, sizeof (ns_errstat));
! 291: printf("NS error statistics:\n");
! 292: ANY(ns_errstat.ns_es_error, "call", " to ns_error");
! 293: ANY(ns_errstat.ns_es_oldshort, "error",
! 294: " ignored due to insufficient addressing");
! 295: ANY(ns_errstat.ns_es_oldns_err, "error request",
! 296: " in response to error packets");
! 297: ANY(ns_errstat.ns_es_tooshort, "error packet",
! 298: " received incomplete");
! 299: ANY(ns_errstat.ns_es_badcode, "error packet",
! 300: " received of unknown type");
! 301: for(j = 0; j < NS_ERR_MAX; j ++) {
! 302: z = ns_errstat.ns_es_outhist[j];
! 303: if (z && histoprint) {
! 304: printf("Output Error Histogram:\n");
! 305: histoprint = 0;
! 306: }
! 307: ns_erputil(z, ns_errstat.ns_es_codes[j]);
! 308:
! 309: }
! 310: histoprint = 1;
! 311: for(j = 0; j < NS_ERR_MAX; j ++) {
! 312: z = ns_errstat.ns_es_inhist[j];
! 313: if (z && histoprint) {
! 314: printf("Input Error Histogram:\n");
! 315: histoprint = 0;
! 316: }
! 317: ns_erputil(z, ns_errstat.ns_es_codes[j]);
! 318: }
! 319: }
! 320:
! 321: static void
! 322: ns_erputil(z, c)
! 323: int z, c;
! 324: {
! 325: int j;
! 326: char codebuf[30];
! 327: char *name, *where;
! 328:
! 329: for(j = 0;; j ++) {
! 330: if ((name = ns_errnames[j].name) == 0)
! 331: break;
! 332: if (ns_errnames[j].code == c)
! 333: break;
! 334: }
! 335: if (name == 0) {
! 336: if (c > 01000)
! 337: where = "in transit";
! 338: else
! 339: where = "at destination";
! 340: sprintf(codebuf, "Unknown XNS error code 0%o", c);
! 341: name = codebuf;
! 342: } else
! 343: where = ns_errnames[j].where;
! 344: ANY(z, name, where);
! 345: }
! 346:
! 347: static struct sockaddr_ns ssns = {AF_NS};
! 348:
! 349: static
! 350: char *ns_prpr(x)
! 351: struct ns_addr *x;
! 352: {
! 353: struct sockaddr_ns *sns = &ssns;
! 354:
! 355: sns->sns_addr = *x;
! 356: return(ns_print((struct sockaddr *)sns));
! 357: }
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