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 5.12 (Berkeley) 06/18/90"; 10 #endif /* not lint */ 11 12 #include <stdio.h> 13 #include <errno.h> 14 #include <nlist.h> 15 16 #include <sys/param.h> 17 #include <sys/socket.h> 18 #include <sys/socketvar.h> 19 #include <sys/mbuf.h> 20 #include <sys/protosw.h> 21 22 #include <net/route.h> 23 #include <net/if.h> 24 25 #include <netinet/tcp_fsm.h> 26 27 #include <netns/ns.h> 28 #include <netns/ns_pcb.h> 29 #include <netns/idp.h> 30 #include <netns/idp_var.h> 31 #include <netns/ns_error.h> 32 #include <netns/sp.h> 33 #include <netns/spidp.h> 34 #include <netns/spp_timer.h> 35 #include <netns/spp_var.h> 36 #define SANAMES 37 #include <netns/spp_debug.h> 38 39 40 struct nspcb nspcb; 41 struct sppcb sppcb; 42 struct socket sockb; 43 extern int Aflag; 44 extern int aflag; 45 extern int nflag; 46 extern char *plural(); 47 char *ns_prpr(); 48 49 static int first = 1; 50 51 /* 52 * Print a summary of connections related to a Network Systems 53 * protocol. For SPP, also give state of connection. 54 * Listening processes (aflag) are suppressed unless the 55 * -a (all) flag is specified. 56 */ 57 58 nsprotopr(off, name) 59 off_t off; 60 char *name; 61 { 62 struct nspcb cb; 63 register struct nspcb *prev, *next; 64 int isspp; 65 66 if (off == 0) 67 return; 68 isspp = strcmp(name, "spp") == 0; 69 kvm_read(off, (char *)&cb, sizeof (struct nspcb)); 70 nspcb = cb; 71 prev = (struct nspcb *)off; 72 if (nspcb.nsp_next == (struct nspcb *)off) 73 return; 74 for (;nspcb.nsp_next != (struct nspcb *)off; prev = next) { 75 off_t ppcb; 76 77 next = nspcb.nsp_next; 78 kvm_read((off_t)next, (char *)&nspcb, sizeof (nspcb)); 79 if (nspcb.nsp_prev != prev) { 80 printf("???\n"); 81 break; 82 } 83 if (!aflag && ns_nullhost(nspcb.nsp_faddr) ) { 84 continue; 85 } 86 kvm_read((off_t)nspcb.nsp_socket, 87 (char *)&sockb, sizeof (sockb)); 88 ppcb = (off_t) nspcb.nsp_pcb; 89 if (ppcb) { 90 if (isspp) { 91 kvm_read(ppcb, (char *)&sppcb, sizeof (sppcb)); 92 } else continue; 93 } else 94 if (isspp) continue; 95 if (first) { 96 printf("Active NS connections"); 97 if (aflag) 98 printf(" (including servers)"); 99 putchar('\n'); 100 if (Aflag) 101 printf("%-8.8s ", "PCB"); 102 printf(Aflag ? 103 "%-5.5s %-6.6s %-6.6s %-18.18s %-18.18s %s\n" : 104 "%-5.5s %-6.6s %-6.6s %-22.22s %-22.22s %s\n", 105 "Proto", "Recv-Q", "Send-Q", 106 "Local Address", "Foreign Address", "(state)"); 107 first = 0; 108 } 109 if (Aflag) 110 printf("%8x ", ppcb); 111 printf("%-5.5s %6d %6d ", name, sockb.so_rcv.sb_cc, 112 sockb.so_snd.sb_cc); 113 printf(" %-22.22s", ns_prpr(&nspcb.nsp_laddr)); 114 printf(" %-22.22s", ns_prpr(&nspcb.nsp_faddr)); 115 if (isspp) { 116 extern char *tcpstates[]; 117 if (sppcb.s_state >= TCP_NSTATES) 118 printf(" %d", sppcb.s_state); 119 else 120 printf(" %s", tcpstates[sppcb.s_state]); 121 } 122 putchar('\n'); 123 prev = next; 124 } 125 } 126 #define ANY(x,y,z) ((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 spp_stats(off, name) 132 off_t off; 133 char *name; 134 { 135 struct spp_istat spp_istat; 136 #define sppstat spp_istat.newstats 137 138 if (off == 0) 139 return; 140 kvm_read(off, (char *)&spp_istat, sizeof (spp_istat)); 141 printf("%s:\n", name); 142 ANY(spp_istat.nonucn, "connection", " dropped due to no new sockets "); 143 ANY(spp_istat.gonawy, "connection", " terminated due to our end dying"); 144 ANY(spp_istat.nonucn, "connection", " dropped due to inability to connect"); 145 ANY(spp_istat.noconn, "connection", " dropped due to inability to connect"); 146 ANY(spp_istat.notme, "connection", " incompleted due to mismatched id's"); 147 ANY(spp_istat.wrncon, "connection", " dropped due to mismatched id's"); 148 ANY(spp_istat.bdreas, "packet", " dropped out of sequence"); 149 ANY(spp_istat.lstdup, "packet", " duplicating the highest packet"); 150 ANY(spp_istat.notyet, "packet", " refused as exceeding allocation"); 151 ANY(sppstat.spps_connattempt, "connection", " initiated"); 152 ANY(sppstat.spps_accepts, "connection", " accepted"); 153 ANY(sppstat.spps_connects, "connection", " established"); 154 ANY(sppstat.spps_drops, "connection", " dropped"); 155 ANY(sppstat.spps_conndrops, "embryonic connection", " dropped"); 156 ANY(sppstat.spps_closed, "connection", " closed (includes drops)"); 157 ANY(sppstat.spps_segstimed, "packet", " where we tried to get rtt"); 158 ANY(sppstat.spps_rttupdated, "time", " we got rtt"); 159 ANY(sppstat.spps_delack, "delayed ack", " sent"); 160 ANY(sppstat.spps_timeoutdrop, "connection", " dropped in rxmt timeout"); 161 ANY(sppstat.spps_rexmttimeo, "retransmit timeout", ""); 162 ANY(sppstat.spps_persisttimeo, "persist timeout", ""); 163 ANY(sppstat.spps_keeptimeo, "keepalive timeout", ""); 164 ANY(sppstat.spps_keepprobe, "keepalive probe", " sent"); 165 ANY(sppstat.spps_keepdrops, "connection", " dropped in keepalive"); 166 ANY(sppstat.spps_sndtotal, "total packet", " sent"); 167 ANY(sppstat.spps_sndpack, "data packet", " sent"); 168 ANY(sppstat.spps_sndbyte, "data byte", " sent"); 169 ANY(sppstat.spps_sndrexmitpack, "data packet", " retransmitted"); 170 ANY(sppstat.spps_sndrexmitbyte, "data byte", " retransmitted"); 171 ANY(sppstat.spps_sndacks, "ack-only packet", " sent"); 172 ANY(sppstat.spps_sndprobe, "window probe", " sent"); 173 ANY(sppstat.spps_sndurg, "packet", " sent with URG only"); 174 ANY(sppstat.spps_sndwinup, "window update-only packet", " sent"); 175 ANY(sppstat.spps_sndctrl, "control (SYN|FIN|RST) packet", " sent"); 176 ANY(sppstat.spps_sndvoid, "request", " to send a non-existant packet"); 177 ANY(sppstat.spps_rcvtotal, "total packet", " received"); 178 ANY(sppstat.spps_rcvpack, "packet", " received in sequence"); 179 ANY(sppstat.spps_rcvbyte, "byte", " received in sequence"); 180 ANY(sppstat.spps_rcvbadsum, "packet", " received with ccksum errs"); 181 ANY(sppstat.spps_rcvbadoff, "packet", " received with bad offset"); 182 ANY(sppstat.spps_rcvshort, "packet", " received too short"); 183 ANY(sppstat.spps_rcvduppack, "duplicate-only packet", " received"); 184 ANY(sppstat.spps_rcvdupbyte, "duplicate-only byte", " received"); 185 ANY(sppstat.spps_rcvpartduppack, "packet", " with some duplicate data"); 186 ANY(sppstat.spps_rcvpartdupbyte, "dup. byte", " in part-dup. packet"); 187 ANY(sppstat.spps_rcvoopack, "out-of-order packet", " received"); 188 ANY(sppstat.spps_rcvoobyte, "out-of-order byte", " received"); 189 ANY(sppstat.spps_rcvpackafterwin, "packet", " with data after window"); 190 ANY(sppstat.spps_rcvbyteafterwin, "byte", " rcvd after window"); 191 ANY(sppstat.spps_rcvafterclose, "packet", " rcvd after 'close'"); 192 ANY(sppstat.spps_rcvwinprobe, "rcvd window probe packet", ""); 193 ANY(sppstat.spps_rcvdupack, "rcvd duplicate ack", ""); 194 ANY(sppstat.spps_rcvacktoomuch, "rcvd ack", " for unsent data"); 195 ANY(sppstat.spps_rcvackpack, "rcvd ack packet", ""); 196 ANY(sppstat.spps_rcvackbyte, "byte", " acked by rcvd acks"); 197 ANY(sppstat.spps_rcvwinupd, "rcvd window update packet", ""); 198 } 199 #undef ANY 200 #define ANY(x,y,z) ((x) ? printf("\t%d %s%s%s\n",x,y,plural(x),z) : 0) 201 202 /* 203 * Dump IDP statistics structure. 204 */ 205 idp_stats(off, name) 206 off_t off; 207 char *name; 208 { 209 struct idpstat idpstat; 210 211 if (off == 0) 212 return; 213 kvm_read(off, (char *)&idpstat, sizeof (idpstat)); 214 printf("%s:\n", name); 215 ANY(idpstat.idps_toosmall, "packet", " smaller than a header"); 216 ANY(idpstat.idps_tooshort, "packet", " smaller than advertised"); 217 ANY(idpstat.idps_badsum, "packet", " with bad checksums"); 218 } 219 220 static struct { 221 u_short code; 222 char *name; 223 char *where; 224 } ns_errnames[] = { 225 {0, "Unspecified Error", " at Destination"}, 226 {1, "Bad Checksum", " at Destination"}, 227 {2, "No Listener", " at Socket"}, 228 {3, "Packet", " Refused due to lack of space at Destination"}, 229 {01000, "Unspecified Error", " while gatewayed"}, 230 {01001, "Bad Checksum", " while gatewayed"}, 231 {01002, "Packet", " forwarded too many times"}, 232 {01003, "Packet", " too large to be forwarded"}, 233 {-1, 0, 0}, 234 }; 235 236 /* 237 * Dump NS Error statistics structure. 238 */ 239 /*ARGSUSED*/ 240 nserr_stats(off, name) 241 off_t off; 242 char *name; 243 { 244 struct ns_errstat ns_errstat; 245 register int j; 246 register int histoprint = 1; 247 int z; 248 249 if (off == 0) 250 return; 251 kvm_read(off, (char *)&ns_errstat, sizeof (ns_errstat)); 252 printf("NS error statistics:\n"); 253 ANY(ns_errstat.ns_es_error, "call", " to ns_error"); 254 ANY(ns_errstat.ns_es_oldshort, "error", 255 " ignored due to insufficient addressing"); 256 ANY(ns_errstat.ns_es_oldns_err, "error request", 257 " in response to error packets"); 258 ANY(ns_errstat.ns_es_tooshort, "error packet", 259 " received incomplete"); 260 ANY(ns_errstat.ns_es_badcode, "error packet", 261 " received of unknown type"); 262 for(j = 0; j < NS_ERR_MAX; j ++) { 263 z = ns_errstat.ns_es_outhist[j]; 264 if (z && histoprint) { 265 printf("Output Error Histogram:\n"); 266 histoprint = 0; 267 } 268 ns_erputil(z, ns_errstat.ns_es_codes[j]); 269 270 } 271 histoprint = 1; 272 for(j = 0; j < NS_ERR_MAX; j ++) { 273 z = ns_errstat.ns_es_inhist[j]; 274 if (z && histoprint) { 275 printf("Input Error Histogram:\n"); 276 histoprint = 0; 277 } 278 ns_erputil(z, ns_errstat.ns_es_codes[j]); 279 } 280 } 281 static 282 ns_erputil(z, c) 283 { 284 int j; 285 char codebuf[30]; 286 char *name, *where; 287 for(j = 0;; j ++) { 288 if ((name = ns_errnames[j].name) == 0) 289 break; 290 if (ns_errnames[j].code == c) 291 break; 292 } 293 if (name == 0) { 294 if (c > 01000) 295 where = "in transit"; 296 else 297 where = "at destination"; 298 sprintf(codebuf, "Unknown XNS error code 0%o", c); 299 name = codebuf; 300 } else 301 where = ns_errnames[j].where; 302 ANY(z, name, where); 303 } 304 static struct sockaddr_ns ssns = {AF_NS}; 305 306 char *ns_prpr(x) 307 struct ns_addr *x; 308 { 309 extern char *ns_print(); 310 struct sockaddr_ns *sns = &ssns; 311 sns->sns_addr = *x; 312 return(ns_print(sns)); 313 } 314