atalk.c revision 1.12
1 /* $NetBSD: atalk.c,v 1.12 2008/04/24 04:09:27 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. Neither the name of the University nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 */ 31 32 #include <sys/cdefs.h> 33 #ifndef lint 34 #if 0 35 static char sccsid[] = "from @(#)atalk.c 1.1 (Whistle) 6/6/96"; 36 #else 37 __RCSID("$NetBSD: atalk.c,v 1.12 2008/04/24 04:09:27 thorpej Exp $"); 38 #endif 39 #endif /* not lint */ 40 41 #include <sys/param.h> 42 #include <sys/queue.h> 43 #include <sys/socket.h> 44 #include <sys/socketvar.h> 45 #include <sys/mbuf.h> 46 #include <sys/protosw.h> 47 #include <sys/sysctl.h> 48 49 #include <net/route.h> 50 #include <net/if.h> 51 52 #include <netinet/tcp_fsm.h> 53 54 #include <netatalk/at.h> 55 #include <netatalk/ddp_var.h> 56 57 #include <err.h> 58 #include <nlist.h> 59 #include <kvm.h> 60 #include <errno.h> 61 #include <stdio.h> 62 #include <string.h> 63 #include "netstat.h" 64 65 struct ddpcb ddpcb; 66 struct socket sockb; 67 68 static int first = 1; 69 70 /* 71 * Print a summary of connections related to a Network Systems 72 * protocol. For XXX, also give state of connection. 73 * Listening processes (aflag) are suppressed unless the 74 * -a (all) flag is specified. 75 */ 76 77 static char * 78 at_pr_net(struct sockaddr_at *sat, int numeric) 79 { 80 static char mybuf[50]; 81 82 if (!numeric) { 83 switch (sat->sat_addr.s_net) { 84 case 0xffff: 85 return "????"; 86 case ATADDR_ANYNET: 87 return ("*"); 88 } 89 } 90 (void)snprintf(mybuf, sizeof(mybuf), "%hu", ntohs(sat->sat_addr.s_net)); 91 return (mybuf); 92 } 93 94 static char * 95 at_pr_host(struct sockaddr_at *sat, int numeric) 96 { 97 static char mybuf[50]; 98 99 if (!numeric) { 100 switch (sat->sat_addr.s_node) { 101 case ATADDR_BCAST: 102 return "bcast"; 103 case ATADDR_ANYNODE: 104 return ("*"); 105 } 106 } 107 (void)snprintf(mybuf, sizeof(mybuf), "%d", 108 (unsigned int)sat->sat_addr.s_node); 109 return (mybuf); 110 } 111 112 static char * 113 at_pr_port(struct sockaddr_at *sat) 114 { 115 static char mybuf[50]; 116 117 switch (sat->sat_port) { 118 case ATADDR_ANYPORT: 119 return ("*"); 120 case 0xff: 121 return "????"; 122 default: 123 (void)snprintf(mybuf, sizeof(mybuf), "%d", 124 (unsigned int)sat->sat_port); 125 return (mybuf); 126 } 127 } 128 129 static char * 130 at_pr_range(struct sockaddr_at *sat) 131 { 132 static char mybuf[50]; 133 134 if (sat->sat_range.r_netrange.nr_firstnet 135 != sat->sat_range.r_netrange.nr_lastnet) { 136 (void)snprintf(mybuf, sizeof(mybuf), "%d-%d", 137 ntohs(sat->sat_range.r_netrange.nr_firstnet), 138 ntohs(sat->sat_range.r_netrange.nr_lastnet)); 139 } else { 140 (void)snprintf(mybuf, sizeof(mybuf), "%d", 141 ntohs(sat->sat_range.r_netrange.nr_firstnet)); 142 } 143 return (mybuf); 144 } 145 146 147 /* what == 0 for addr only == 3 148 * 1 for net 149 * 2 for host 150 * 4 for port 151 * 8 for numeric only 152 */ 153 char * 154 atalk_print(const struct sockaddr *sa, int what) 155 { 156 struct sockaddr_at *sat = (struct sockaddr_at *) sa; 157 static char mybuf[50]; 158 int numeric = (what & 0x08); 159 160 mybuf[0] = 0; 161 switch (what & 0x13) { 162 case 0: 163 mybuf[0] = 0; 164 break; 165 case 1: 166 (void)snprintf(mybuf, sizeof(mybuf), "%s", 167 at_pr_net(sat, numeric)); 168 break; 169 case 2: 170 (void)snprintf(mybuf, sizeof(mybuf), "%s", 171 at_pr_host(sat, numeric)); 172 break; 173 case 3: 174 (void)snprintf(mybuf, sizeof(mybuf), "%s.%s", 175 at_pr_net(sat, numeric), 176 at_pr_host(sat, numeric)); 177 break; 178 case 0x10: 179 (void)snprintf(mybuf, sizeof(mybuf), "%s", at_pr_range(sat)); 180 } 181 if (what & 4) { 182 (void)snprintf(mybuf + strlen(mybuf), 183 sizeof(mybuf) - strlen(mybuf), ".%s", at_pr_port(sat)); 184 } 185 return (mybuf); 186 } 187 188 char * 189 atalk_print2(const struct sockaddr *sa, const struct sockaddr *mask, int what) 190 { 191 int n, l; 192 static char buf[100]; 193 struct sockaddr_at *sat1, *sat2; 194 struct sockaddr_at thesockaddr; 195 struct sockaddr *sa2; 196 197 sat1 = (struct sockaddr_at *) sa; 198 sat2 = (struct sockaddr_at *) mask; 199 sa2 = (struct sockaddr *) & thesockaddr; 200 201 thesockaddr.sat_addr.s_net = sat1->sat_addr.s_net & 202 sat2->sat_addr.s_net; 203 n = snprintf(buf, sizeof(buf), "%s", atalk_print(sa2, 1 | (what & 8))); 204 if (n >= sizeof(buf)) 205 n = sizeof(buf) - 1; 206 else if (n == -1) 207 n = 0; /* What else can be done ? */ 208 if (sat2->sat_addr.s_net != 0xFFFF) { 209 thesockaddr.sat_addr.s_net = sat1->sat_addr.s_net | 210 ~sat2->sat_addr.s_net; 211 l = snprintf(buf + n, sizeof(buf) - n, 212 "-%s", atalk_print(sa2, 1 | (what & 8))); 213 if (l >= sizeof(buf) - n) 214 l = sizeof(buf) - n - 1; 215 if (l > 0) 216 n += l; 217 } 218 if (what & 2) { 219 l = snprintf(buf + n, sizeof(buf) - n, ".%s", 220 atalk_print(sa, what & (~1))); 221 if (l >= sizeof(buf) - n) 222 l = sizeof(buf) - n - 1; 223 if (l > 0) 224 n += l; 225 } 226 return (buf); 227 } 228 229 void 230 atalkprotopr(u_long off, char *name) 231 { 232 struct ddpcb cb; 233 struct ddpcb *prev, *next; 234 struct ddpcb *initial; 235 int width = 22; 236 if (off == 0) 237 return; 238 if (kread(off, (char *)&initial, sizeof(struct ddpcb *)) < 0) 239 return; 240 ddpcb = cb; 241 prev = (struct ddpcb *)off; 242 for (next = initial; next != NULL; prev = next) { 243 u_long ppcb = (u_long)next; 244 245 if (kread((u_long)next, (char *)&ddpcb, sizeof(ddpcb)) < 0) 246 return; 247 next = ddpcb.ddp_next; 248 #if 0 249 if (!aflag && atalk_nullhost(ddpcb.ddp_lsat)) { 250 continue; 251 } 252 #endif 253 if (kread((u_long)ddpcb.ddp_socket, 254 (char *)&sockb, sizeof(sockb)) < 0) 255 return; 256 if (first) { 257 printf("Active ATALK connections"); 258 if (aflag) 259 printf(" (including servers)"); 260 putchar('\n'); 261 if (Aflag) { 262 width = 18; 263 printf("%-8.8s ", "PCB"); 264 } 265 printf("%-5.5s %-6.6s %-6.6s %*.*s %*.*s %s\n", 266 "Proto", "Recv-Q", "Send-Q", 267 -width, width, "Local Address", 268 -width, width, "Foreign Address", "(state)"); 269 first = 0; 270 } 271 if (Aflag) 272 printf("%8lx ", ppcb); 273 printf("%-5.5s %6ld %6ld ", name, sockb.so_rcv.sb_cc, 274 sockb.so_snd.sb_cc); 275 printf(" %*.*s", -width, width, 276 atalk_print((struct sockaddr *)&ddpcb.ddp_lsat, 7)); 277 printf(" %*.*s", -width, width, 278 atalk_print((struct sockaddr *)&ddpcb.ddp_fsat, 7)); 279 putchar('\n'); 280 } 281 } 282 #define ANY(x,y,z) \ 283 ((sflag==1 || (x)) ? printf("\t%llu %s%s%s\n",(unsigned long long)x,y,plural(x),z) : 0) 284 285 /* 286 * Dump DDP statistics structure. 287 */ 288 void 289 ddp_stats(u_long off, char *name) 290 { 291 uint64_t ddpstat[DDP_NSTATS]; 292 293 if (use_sysctl) { 294 size_t size = sizeof(ddpstat); 295 296 if (sysctlbyname("net.at.ddp.stats", ddpstat, &size, 297 NULL, 0) == -1) 298 return; 299 } else { 300 warnx("%s stats not available via KVM.", name); 301 return; 302 } 303 304 printf("%s:\n", name); 305 306 ANY(ddpstat[DDP_STAT_SHORT], "packet", " with short headers "); 307 ANY(ddpstat[DDP_STAT_LONG], "packet", " with long headers "); 308 ANY(ddpstat[DDP_STAT_NOSUM], "packet", " with no checksum "); 309 ANY(ddpstat[DDP_STAT_TOOSHORT], "packet", " too short "); 310 ANY(ddpstat[DDP_STAT_BADSUM], "packet", " with bad checksum "); 311 ANY(ddpstat[DDP_STAT_TOOSMALL], "packet", " with not enough data "); 312 ANY(ddpstat[DDP_STAT_FORWARD], "packet", " forwarded "); 313 ANY(ddpstat[DDP_STAT_ENCAP], "packet", " encapsulated "); 314 ANY(ddpstat[DDP_STAT_CANTFORWARD], "packet", " rcvd for unreachable dest "); 315 ANY(ddpstat[DDP_STAT_NOSOCKSPACE], "packet", " dropped due to no socket space "); 316 } 317 #undef ANY 318
Indexes created Sun Sep 21 20:09:37 GMT 2025