1 /* 2 * Copyright (c) 1985, 1988 Regents of the University of California. 3 * All rights reserved. 4 * 5 * %sccs.include.redist.c% 6 */ 7 8 #ifndef lint 9 static char sccsid[] = "@(#)ns.c 5.14 (Berkeley) 05/27/92"; 10 #endif /* not lint */ 11 12 #include <sys/param.h> 13 #include <sys/socket.h> 14 #include <sys/socketvar.h> 15 #include <sys/mbuf.h> 16 #include <sys/protosw.h> 17 18 #include <net/route.h> 19 #include <net/if.h> 20 21 #include <netinet/tcp_fsm.h> 22 23 #include <netns/ns.h> 24 #include <netns/ns_pcb.h> 25 #include <netns/idp.h> 26 #include <netns/idp_var.h> 27 #include <netns/ns_error.h> 28 #include <netns/sp.h> 29 #include <netns/spidp.h> 30 #include <netns/spp_timer.h> 31 #include <netns/spp_var.h> 32 #define SANAMES 33 #include <netns/spp_debug.h> 34 35 #include <nlist.h> 36 #include <errno.h> 37 #include <stdio.h> 38 #include <string.h> 39 #include "netstat.h" 40 41 struct nspcb nspcb; 42 struct sppcb sppcb; 43 struct socket sockb; 44 45 static char *ns_prpr __P((struct ns_addr *)); 46 47 static int first = 1; 48 49 /* 50 * Print a summary of connections related to a Network Systems 51 * protocol. For SPP, also give state of connection. 52 * Listening processes (aflag) are suppressed unless the 53 * -a (all) flag is specified. 54 */ 55 56 void 57 nsprotopr(off, name) 58 off_t off; 59 char *name; 60 { 61 struct nspcb cb; 62 register struct nspcb *prev, *next; 63 int isspp; 64 65 if (off == 0) 66 return; 67 isspp = strcmp(name, "spp") == 0; 68 kread(off, (char *)&cb, sizeof (struct nspcb)); 69 nspcb = cb; 70 prev = (struct nspcb *)off; 71 if (nspcb.nsp_next == (struct nspcb *)off) 72 return; 73 for (;nspcb.nsp_next != (struct nspcb *)off; prev = next) { 74 off_t ppcb; 75 76 next = nspcb.nsp_next; 77 kread((off_t)next, (char *)&nspcb, sizeof (nspcb)); 78 if (nspcb.nsp_prev != prev) { 79 printf("???\n"); 80 break; 81 } 82 if (!aflag && ns_nullhost(nspcb.nsp_faddr) ) { 83 continue; 84 } 85 kread((off_t)nspcb.nsp_socket, 86 (char *)&sockb, sizeof (sockb)); 87 ppcb = (off_t) nspcb.nsp_pcb; 88 if (ppcb) { 89 if (isspp) { 90 kread(ppcb, (char *)&sppcb, sizeof (sppcb)); 91 } else continue; 92 } else 93 if (isspp) continue; 94 if (first) { 95 printf("Active NS 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 printf("%8x ", ppcb); 110 printf("%-5.5s %6d %6d ", name, sockb.so_rcv.sb_cc, 111 sockb.so_snd.sb_cc); 112 printf(" %-22.22s", ns_prpr(&nspcb.nsp_laddr)); 113 printf(" %-22.22s", ns_prpr(&nspcb.nsp_faddr)); 114 if (isspp) { 115 extern char *tcpstates[]; 116 if (sppcb.s_state >= TCP_NSTATES) 117 printf(" %d", sppcb.s_state); 118 else 119 printf(" %s", tcpstates[sppcb.s_state]); 120 } 121 putchar('\n'); 122 prev = next; 123 } 124 } 125 #define ANY(x,y,z) \ 126 ((x) ? printf("\t%d %s%s%s -- %s\n",x,y,plural(x),z,"x") : 0) 127 128 /* 129 * Dump SPP statistics structure. 130 */ 131 void 132 spp_stats(off, name) 133 off_t off; 134 char *name; 135 { 136 struct spp_istat spp_istat; 137 #define sppstat spp_istat.newstats 138 139 if (off == 0) 140 return; 141 kread(off, (char *)&spp_istat, sizeof (spp_istat)); 142 printf("%s:\n", name); 143 ANY(spp_istat.nonucn, "connection", " dropped due to no new sockets "); 144 ANY(spp_istat.gonawy, "connection", " terminated due to our end dying"); 145 ANY(spp_istat.nonucn, "connection", 146 " dropped due to inability to connect"); 147 ANY(spp_istat.noconn, "connection", 148 " dropped due to inability to connect"); 149 ANY(spp_istat.notme, "connection", 150 " incompleted due to mismatched id's"); 151 ANY(spp_istat.wrncon, "connection", " dropped due to mismatched id's"); 152 ANY(spp_istat.bdreas, "packet", " dropped out of sequence"); 153 ANY(spp_istat.lstdup, "packet", " duplicating the highest packet"); 154 ANY(spp_istat.notyet, "packet", " refused as exceeding allocation"); 155 ANY(sppstat.spps_connattempt, "connection", " initiated"); 156 ANY(sppstat.spps_accepts, "connection", " accepted"); 157 ANY(sppstat.spps_connects, "connection", " established"); 158 ANY(sppstat.spps_drops, "connection", " dropped"); 159 ANY(sppstat.spps_conndrops, "embryonic connection", " dropped"); 160 ANY(sppstat.spps_closed, "connection", " closed (includes drops)"); 161 ANY(sppstat.spps_segstimed, "packet", " where we tried to get rtt"); 162 ANY(sppstat.spps_rttupdated, "time", " we got rtt"); 163 ANY(sppstat.spps_delack, "delayed ack", " sent"); 164 ANY(sppstat.spps_timeoutdrop, "connection", " dropped in rxmt timeout"); 165 ANY(sppstat.spps_rexmttimeo, "retransmit timeout", ""); 166 ANY(sppstat.spps_persisttimeo, "persist timeout", ""); 167 ANY(sppstat.spps_keeptimeo, "keepalive timeout", ""); 168 ANY(sppstat.spps_keepprobe, "keepalive probe", " sent"); 169 ANY(sppstat.spps_keepdrops, "connection", " dropped in keepalive"); 170 ANY(sppstat.spps_sndtotal, "total packet", " sent"); 171 ANY(sppstat.spps_sndpack, "data packet", " sent"); 172 ANY(sppstat.spps_sndbyte, "data byte", " sent"); 173 ANY(sppstat.spps_sndrexmitpack, "data packet", " retransmitted"); 174 ANY(sppstat.spps_sndrexmitbyte, "data byte", " retransmitted"); 175 ANY(sppstat.spps_sndacks, "ack-only packet", " sent"); 176 ANY(sppstat.spps_sndprobe, "window probe", " sent"); 177 ANY(sppstat.spps_sndurg, "packet", " sent with URG only"); 178 ANY(sppstat.spps_sndwinup, "window update-only packet", " sent"); 179 ANY(sppstat.spps_sndctrl, "control (SYN|FIN|RST) packet", " sent"); 180 ANY(sppstat.spps_sndvoid, "request", " to send a non-existant packet"); 181 ANY(sppstat.spps_rcvtotal, "total packet", " received"); 182 ANY(sppstat.spps_rcvpack, "packet", " received in sequence"); 183 ANY(sppstat.spps_rcvbyte, "byte", " received in sequence"); 184 ANY(sppstat.spps_rcvbadsum, "packet", " received with ccksum errs"); 185 ANY(sppstat.spps_rcvbadoff, "packet", " received with bad offset"); 186 ANY(sppstat.spps_rcvshort, "packet", " received too short"); 187 ANY(sppstat.spps_rcvduppack, "duplicate-only packet", " received"); 188 ANY(sppstat.spps_rcvdupbyte, "duplicate-only byte", " received"); 189 ANY(sppstat.spps_rcvpartduppack, "packet", " with some duplicate data"); 190 ANY(sppstat.spps_rcvpartdupbyte, "dup. byte", " in part-dup. packet"); 191 ANY(sppstat.spps_rcvoopack, "out-of-order packet", " received"); 192 ANY(sppstat.spps_rcvoobyte, "out-of-order byte", " received"); 193 ANY(sppstat.spps_rcvpackafterwin, "packet", " with data after window"); 194 ANY(sppstat.spps_rcvbyteafterwin, "byte", " rcvd after window"); 195 ANY(sppstat.spps_rcvafterclose, "packet", " rcvd after 'close'"); 196 ANY(sppstat.spps_rcvwinprobe, "rcvd window probe packet", ""); 197 ANY(sppstat.spps_rcvdupack, "rcvd duplicate ack", ""); 198 ANY(sppstat.spps_rcvacktoomuch, "rcvd ack", " for unsent data"); 199 ANY(sppstat.spps_rcvackpack, "rcvd ack packet", ""); 200 ANY(sppstat.spps_rcvackbyte, "byte", " acked by rcvd acks"); 201 ANY(sppstat.spps_rcvwinupd, "rcvd window update packet", ""); 202 } 203 #undef ANY 204 #define ANY(x,y,z) ((x) ? printf("\t%d %s%s%s\n",x,y,plural(x),z) : 0) 205 206 /* 207 * Dump IDP statistics structure. 208 */ 209 void 210 idp_stats(off, name) 211 off_t off; 212 char *name; 213 { 214 struct idpstat idpstat; 215 216 if (off == 0) 217 return; 218 kread(off, (char *)&idpstat, sizeof (idpstat)); 219 printf("%s:\n", name); 220 ANY(idpstat.idps_toosmall, "packet", " smaller than a header"); 221 ANY(idpstat.idps_tooshort, "packet", " smaller than advertised"); 222 ANY(idpstat.idps_badsum, "packet", " with bad checksums"); 223 } 224 225 static struct { 226 u_short code; 227 char *name; 228 char *where; 229 } ns_errnames[] = { 230 {0, "Unspecified Error", " at Destination"}, 231 {1, "Bad Checksum", " at Destination"}, 232 {2, "No Listener", " at Socket"}, 233 {3, "Packet", " Refused due to lack of space at Destination"}, 234 {01000, "Unspecified Error", " while gatewayed"}, 235 {01001, "Bad Checksum", " while gatewayed"}, 236 {01002, "Packet", " forwarded too many times"}, 237 {01003, "Packet", " too large to be forwarded"}, 238 {-1, 0, 0}, 239 }; 240 241 /* 242 * Dump NS Error statistics structure. 243 */ 244 /*ARGSUSED*/ 245 void 246 nserr_stats(off, name) 247 off_t off; 248 char *name; 249 { 250 struct ns_errstat ns_errstat; 251 register int j; 252 register int histoprint = 1; 253 int z; 254 255 if (off == 0) 256 return; 257 kread(off, (char *)&ns_errstat, sizeof (ns_errstat)); 258 printf("NS error statistics:\n"); 259 ANY(ns_errstat.ns_es_error, "call", " to ns_error"); 260 ANY(ns_errstat.ns_es_oldshort, "error", 261 " ignored due to insufficient addressing"); 262 ANY(ns_errstat.ns_es_oldns_err, "error request", 263 " in response to error packets"); 264 ANY(ns_errstat.ns_es_tooshort, "error packet", 265 " received incomplete"); 266 ANY(ns_errstat.ns_es_badcode, "error packet", 267 " received of unknown type"); 268 for(j = 0; j < NS_ERR_MAX; j ++) { 269 z = ns_errstat.ns_es_outhist[j]; 270 if (z && histoprint) { 271 printf("Output Error Histogram:\n"); 272 histoprint = 0; 273 } 274 ns_erputil(z, ns_errstat.ns_es_codes[j]); 275 276 } 277 histoprint = 1; 278 for(j = 0; j < NS_ERR_MAX; j ++) { 279 z = ns_errstat.ns_es_inhist[j]; 280 if (z && histoprint) { 281 printf("Input Error Histogram:\n"); 282 histoprint = 0; 283 } 284 ns_erputil(z, ns_errstat.ns_es_codes[j]); 285 } 286 } 287 288 static void 289 ns_erputil(z, c) 290 int z, c; 291 { 292 int j; 293 char codebuf[30]; 294 char *name, *where; 295 296 for(j = 0;; j ++) { 297 if ((name = ns_errnames[j].name) == 0) 298 break; 299 if (ns_errnames[j].code == c) 300 break; 301 } 302 if (name == 0) { 303 if (c > 01000) 304 where = "in transit"; 305 else 306 where = "at destination"; 307 sprintf(codebuf, "Unknown XNS error code 0%o", c); 308 name = codebuf; 309 } else 310 where = ns_errnames[j].where; 311 ANY(z, name, where); 312 } 313 314 static struct sockaddr_ns ssns = {AF_NS}; 315 316 static 317 char *ns_prpr(x) 318 struct ns_addr *x; 319 { 320 struct sockaddr_ns *sns = &ssns; 321 322 sns->sns_addr = *x; 323 return(ns_print((struct sockaddr *)sns)); 324 } 325