1 /* $NetBSD: atalk.c,v 1.7 2001/08/19 02:01:24 itojun 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 #include <sys/cdefs.h> 37 #ifndef lint 38 #if 0 39 static char sccsid[] = "from @(#)atalk.c 1.1 (Whistle) 6/6/96"; 40 #else 41 __RCSID("$NetBSD: atalk.c,v 1.7 2001/08/19 02:01:24 itojun Exp $"); 42 #endif 43 #endif /* not lint */ 44 45 #include <sys/param.h> 46 #include <sys/queue.h> 47 #include <sys/socket.h> 48 #include <sys/socketvar.h> 49 #include <sys/mbuf.h> 50 #include <sys/protosw.h> 51 52 #include <net/route.h> 53 #include <net/if.h> 54 55 #include <netinet/tcp_fsm.h> 56 57 #include <netatalk/at.h> 58 #include <netatalk/ddp_var.h> 59 60 #include <nlist.h> 61 #include <errno.h> 62 #include <stdio.h> 63 #include <string.h> 64 #include "netstat.h" 65 66 struct ddpcb ddpcb; 67 struct socket sockb; 68 69 static int first = 1; 70 71 static char *at_pr_net __P((struct sockaddr_at *, int)); 72 static char *at_pr_host __P((struct sockaddr_at *, int)); 73 static char *at_pr_range __P((struct sockaddr_at *)); 74 static char *at_pr_port __P((struct sockaddr_at *)); 75 76 /* 77 * Print a summary of connections related to a Network Systems 78 * protocol. For XXX, also give state of connection. 79 * Listening processes (aflag) are suppressed unless the 80 * -a (all) flag is specified. 81 */ 82 83 static char * 84 at_pr_net(sat, numeric) 85 struct sockaddr_at *sat; 86 int numeric; 87 { 88 static char mybuf[50]; 89 90 if (!numeric) { 91 switch (sat->sat_addr.s_net) { 92 case 0xffff: 93 return "????"; 94 case ATADDR_ANYNET: 95 return ("*"); 96 } 97 } 98 (void)snprintf(mybuf, sizeof(mybuf), "%hu", ntohs(sat->sat_addr.s_net)); 99 return (mybuf); 100 } 101 102 static char * 103 at_pr_host(sat, numeric) 104 struct sockaddr_at *sat; 105 int numeric; 106 { 107 static char mybuf[50]; 108 109 if (!numeric) { 110 switch (sat->sat_addr.s_node) { 111 case ATADDR_BCAST: 112 return "bcast"; 113 case ATADDR_ANYNODE: 114 return ("*"); 115 } 116 } 117 (void)snprintf(mybuf, sizeof(mybuf), "%d", 118 (unsigned int)sat->sat_addr.s_node); 119 return (mybuf); 120 } 121 122 static char * 123 at_pr_port(sat) 124 struct sockaddr_at *sat; 125 { 126 static char mybuf[50]; 127 128 switch (sat->sat_port) { 129 case ATADDR_ANYPORT: 130 return ("*"); 131 case 0xff: 132 return "????"; 133 default: 134 (void)snprintf(mybuf, sizeof(mybuf), "%d", 135 (unsigned int)sat->sat_port); 136 return (mybuf); 137 } 138 } 139 140 static char * 141 at_pr_range(sat) 142 struct sockaddr_at *sat; 143 { 144 static char mybuf[50]; 145 146 if (sat->sat_range.r_netrange.nr_firstnet 147 != sat->sat_range.r_netrange.nr_lastnet) { 148 (void)snprintf(mybuf, sizeof(mybuf), "%d-%d", 149 ntohs(sat->sat_range.r_netrange.nr_firstnet), 150 ntohs(sat->sat_range.r_netrange.nr_lastnet)); 151 } else { 152 (void)snprintf(mybuf, sizeof(mybuf), "%d", 153 ntohs(sat->sat_range.r_netrange.nr_firstnet)); 154 } 155 return (mybuf); 156 } 157 158 159 /* what == 0 for addr only == 3 160 * 1 for net 161 * 2 for host 162 * 4 for port 163 * 8 for numeric only 164 */ 165 char * 166 atalk_print(sa, what) 167 const struct sockaddr *sa; 168 int what; 169 { 170 struct sockaddr_at *sat = (struct sockaddr_at *) sa; 171 static char mybuf[50]; 172 int numeric = (what & 0x08); 173 174 mybuf[0] = 0; 175 switch (what & 0x13) { 176 case 0: 177 mybuf[0] = 0; 178 break; 179 case 1: 180 (void)snprintf(mybuf, sizeof(mybuf), "%s", 181 at_pr_net(sat, numeric)); 182 break; 183 case 2: 184 (void)snprintf(mybuf, sizeof(mybuf), "%s", 185 at_pr_host(sat, numeric)); 186 break; 187 case 3: 188 (void)snprintf(mybuf, sizeof(mybuf), "%s.%s", 189 at_pr_net(sat, numeric), 190 at_pr_host(sat, numeric)); 191 break; 192 case 0x10: 193 (void)snprintf(mybuf, sizeof(mybuf), "%s", at_pr_range(sat)); 194 } 195 if (what & 4) { 196 (void)snprintf(mybuf + strlen(mybuf), 197 sizeof(mybuf) - strlen(mybuf), ".%s", at_pr_port(sat)); 198 } 199 return (mybuf); 200 } 201 202 char * 203 atalk_print2(sa, mask, what) 204 const struct sockaddr *sa; 205 const struct sockaddr *mask; 206 int what; 207 { 208 size_t n, l; 209 static char buf[100]; 210 struct sockaddr_at *sat1, *sat2; 211 struct sockaddr_at thesockaddr; 212 struct sockaddr *sa2; 213 214 sat1 = (struct sockaddr_at *) sa; 215 sat2 = (struct sockaddr_at *) mask; 216 sa2 = (struct sockaddr *) & thesockaddr; 217 218 thesockaddr.sat_addr.s_net = sat1->sat_addr.s_net & 219 sat2->sat_addr.s_net; 220 n = snprintf(buf, sizeof(buf), "%s", atalk_print(sa2, 1 | (what & 8))); 221 if (n >= sizeof(buf)) 222 n = sizeof(buf) - 1; 223 else if (n == -1) 224 n = 0; /* What else can be done ? */ 225 if (sat2->sat_addr.s_net != 0xFFFF) { 226 thesockaddr.sat_addr.s_net = sat1->sat_addr.s_net | 227 ~sat2->sat_addr.s_net; 228 l = snprintf(buf + n, sizeof(buf) - n, 229 "-%s", atalk_print(sa2, 1 | (what & 8))); 230 if (l >= sizeof(buf) - n) 231 l = sizeof(buf) - n - 1; 232 if (l > 0) 233 n += l; 234 } 235 if (what & 2) { 236 l = snprintf(buf + n, sizeof(buf) - n, ".%s", 237 atalk_print(sa, what & (~1))); 238 if (l >= sizeof(buf) - n) 239 l = sizeof(buf) - n - 1; 240 if (l > 0) 241 n += l; 242 } 243 return (buf); 244 } 245 246 void 247 atalkprotopr(off, name) 248 u_long off; 249 char *name; 250 { 251 struct ddpcb cb; 252 struct ddpcb *prev, *next; 253 struct ddpcb *initial; 254 int width = 22; 255 if (off == 0) 256 return; 257 if (kread(off, (char *)&initial, sizeof(struct ddpcb *)) < 0) 258 return; 259 ddpcb = cb; 260 prev = (struct ddpcb *)off; 261 for (next = initial; next != NULL; prev = next) { 262 u_long ppcb = (u_long)next; 263 264 if (kread((u_long)next, (char *)&ddpcb, sizeof(ddpcb)) < 0) 265 return; 266 next = ddpcb.ddp_next; 267 #if 0 268 if (!aflag && atalk_nullhost(ddpcb.ddp_lsat)) { 269 continue; 270 } 271 #endif 272 if (kread((u_long)ddpcb.ddp_socket, 273 (char *)&sockb, sizeof(sockb)) < 0) 274 return; 275 if (first) { 276 printf("Active ATALK connections"); 277 if (aflag) 278 printf(" (including servers)"); 279 putchar('\n'); 280 if (Aflag) { 281 width = 18; 282 printf("%-8.8s ", "PCB"); 283 } 284 printf("%-5.5s %-6.6s %-6.6s %*.*s %*.*s %s\n", 285 "Proto", "Recv-Q", "Send-Q", 286 -width, width, "Local Address", 287 -width, width, "Foreign Address", "(state)"); 288 first = 0; 289 } 290 if (Aflag) 291 printf("%8lx ", ppcb); 292 printf("%-5.5s %6ld %6ld ", name, sockb.so_rcv.sb_cc, 293 sockb.so_snd.sb_cc); 294 printf(" %*.*s", -width, width, 295 atalk_print((struct sockaddr *)&ddpcb.ddp_lsat, 7)); 296 printf(" %*.*s", -width, width, 297 atalk_print((struct sockaddr *)&ddpcb.ddp_fsat, 7)); 298 putchar('\n'); 299 } 300 } 301 #define ANY(x,y,z) \ 302 ((sflag==1 || (x)) ? printf("\t%ld %s%s%s\n",x,y,plural(x),z) : 0) 303 304 /* 305 * Dump DDP statistics structure. 306 */ 307 void 308 ddp_stats(off, name) 309 u_long off; 310 char *name; 311 { 312 struct ddpstat ddpstat; 313 314 if (off == 0) 315 return; 316 if (kread(off, (char *)&ddpstat, sizeof(ddpstat)) < 0) 317 return; 318 printf("%s:\n", name); 319 ANY(ddpstat.ddps_short, "packet", " with short headers "); 320 ANY(ddpstat.ddps_long, "packet", " with long headers "); 321 ANY(ddpstat.ddps_nosum, "packet", " with no checksum "); 322 ANY(ddpstat.ddps_tooshort, "packet", " too short "); 323 ANY(ddpstat.ddps_badsum, "packet", " with bad checksum "); 324 ANY(ddpstat.ddps_toosmall, "packet", " with not enough data "); 325 ANY(ddpstat.ddps_forward, "packet", " forwarded "); 326 ANY(ddpstat.ddps_encap, "packet", " encapsulated "); 327 ANY(ddpstat.ddps_cantforward, "packet", " rcvd for unreachable dest "); 328 ANY(ddpstat.ddps_nosockspace, "packet", " dropped due to no socket space "); 329 } 330 #undef ANY 331