ip.c revision 1.15
1 /* $NetBSD: ip.c,v 1.15 2008/04/07 06:31:28 thorpej Exp $ */ 2 3 /* 4 * Copyright (c) 1999, 2000 Andrew Doran <ad (at) NetBSD.org> 5 * 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 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 * 28 */ 29 30 #include <sys/cdefs.h> 31 #ifndef lint 32 __RCSID("$NetBSD: ip.c,v 1.15 2008/04/07 06:31:28 thorpej Exp $"); 33 #endif /* not lint */ 34 35 #include <sys/param.h> 36 #include <sys/sysctl.h> 37 38 #include <netinet/in.h> 39 #include <netinet/in_systm.h> 40 #include <netinet/ip.h> 41 #include <netinet/ip_var.h> 42 #include <netinet/udp.h> 43 #include <netinet/udp_var.h> 44 45 #include <string.h> 46 47 #include "systat.h" 48 #include "extern.h" 49 50 #define LHD(row, str) mvwprintw(wnd, row, 10, str) 51 #define RHD(row, str) mvwprintw(wnd, row, 45, str); 52 #define SHOW(stat, row, col) \ 53 mvwprintw(wnd, row, col, "%9llu", (unsigned long long)curstat.stat) 54 55 struct mystat { 56 uint64_t i[IP_NSTATS]; 57 uint64_t u[UDP_NSTATS]; 58 }; 59 60 enum update { 61 UPDATE_TIME, 62 UPDATE_BOOT, 63 UPDATE_RUN, 64 }; 65 66 static enum update update = UPDATE_TIME; 67 static struct mystat curstat; 68 static struct mystat oldstat; 69 static struct mystat newstat; 70 71 static struct nlist namelist[] = { 72 { .n_name = "_ipstat" }, 73 { .n_name = "_udpstat" }, 74 { .n_name = NULL } 75 }; 76 77 WINDOW * 78 openip(void) 79 { 80 81 return (subwin(stdscr, -1, 0, 5, 0)); 82 } 83 84 void 85 closeip(WINDOW *w) 86 { 87 88 if (w != NULL) { 89 wclear(w); 90 wrefresh(w); 91 delwin(w); 92 } 93 } 94 95 void 96 labelip(void) 97 { 98 99 wmove(wnd, 0, 0); wclrtoeol(wnd); 100 101 LHD(0, "total packets received"); 102 LHD(1, " passed to upper layers"); 103 LHD(2, " with bad checksums"); 104 LHD(3, " too short for header"); 105 LHD(4, " too short for data"); 106 LHD(5, " with invalid hlen"); 107 LHD(6, " with invalid length"); 108 LHD(7, " with invalid version"); 109 LHD(8, " too large"); 110 LHD(9, " option errors"); 111 LHD(10, " fragments received"); 112 LHD(11, " fragments dropped"); 113 LHD(12, " fragments timed out"); 114 LHD(13, " packets reassembled ok"); 115 116 LHD(15, "packets forwarded"); 117 LHD(16, " fast forwarded"); 118 LHD(17, " unreachable dests"); 119 LHD(18, " redirects generated"); 120 121 RHD(0, "total packets sent"); 122 RHD(1, " generated locally"); 123 RHD(2, " output drops"); 124 RHD(3, " output fragments generated"); 125 RHD(4, " fragmentation failed"); 126 RHD(5, " destinations unreachable"); 127 RHD(6, " packets output via raw IP"); 128 RHD(7, " total UDP packets sent"); 129 130 RHD(9, "total UDP packets received"); 131 RHD(10, " too short for header"); 132 RHD(11, " invalid checksum"); 133 RHD(12, " invalid length"); 134 RHD(13, " no socket for dest port"); 135 RHD(14, " no socket for broadcast"); 136 RHD(15, " socket buffer full"); 137 } 138 139 void 140 showip(void) 141 { 142 u_quad_t totalout; 143 144 totalout = curstat.i[IP_STAT_FORWARD] + curstat.i[IP_STAT_LOCALOUT]; 145 146 SHOW(i[IP_STAT_TOTAL], 0, 0); 147 mvwprintw(wnd, 0, 35, "%9llu", (unsigned long long)totalout); 148 SHOW(i[IP_STAT_DELIVERED], 1, 0); 149 SHOW(i[IP_STAT_BADSUM], 2, 0); 150 SHOW(i[IP_STAT_TOOSHORT], 3, 0); 151 SHOW(i[IP_STAT_TOOSMALL], 4, 0); 152 SHOW(i[IP_STAT_BADHLEN], 5, 0); 153 SHOW(i[IP_STAT_BADLEN], 6, 0); 154 SHOW(i[IP_STAT_BADVERS], 7, 0); 155 SHOW(i[IP_STAT_TOOLONG], 8, 0); 156 SHOW(i[IP_STAT_BADOPTIONS], 9, 0); 157 158 SHOW(i[IP_STAT_LOCALOUT], 1, 35); 159 SHOW(i[IP_STAT_ODROPPED], 2, 35); 160 SHOW(i[IP_STAT_OFRAGMENTS], 3, 35); 161 SHOW(i[IP_STAT_CANTFRAG], 4, 35); 162 SHOW(i[IP_STAT_NOROUTE], 5, 35); 163 SHOW(i[IP_STAT_RAWOUT], 6, 35); 164 SHOW(u[UDP_STAT_OPACKETS], 7, 35); 165 166 SHOW(i[IP_STAT_FRAGMENTS], 10, 0); 167 SHOW(i[IP_STAT_FRAGDROPPED], 11, 0); 168 SHOW(i[IP_STAT_FRAGTIMEOUT], 12, 0); 169 SHOW(i[IP_STAT_REASSEMBLED], 13, 0); 170 171 SHOW(i[IP_STAT_FORWARD], 15, 0); 172 SHOW(i[IP_STAT_FASTFORWARD], 16, 0); 173 SHOW(i[IP_STAT_CANTFORWARD], 17, 0); 174 SHOW(i[IP_STAT_REDIRECTSENT], 18, 0); 175 176 SHOW(u[UDP_STAT_IPACKETS], 9, 35); 177 SHOW(u[UDP_STAT_HDROPS], 10, 35); 178 SHOW(u[UDP_STAT_BADSUM], 11, 35); 179 SHOW(u[UDP_STAT_BADLEN], 12, 35); 180 SHOW(u[UDP_STAT_NOPORT], 13, 35); 181 SHOW(u[UDP_STAT_NOPORTBCAST], 14, 35); 182 SHOW(u[UDP_STAT_FULLSOCK], 15, 35); 183 } 184 185 int 186 initip(void) 187 { 188 189 if (namelist[0].n_type == 0) { 190 if (kvm_nlist(kd, namelist)) { 191 nlisterr(namelist); 192 return(0); 193 } 194 if ((namelist[0].n_type | namelist[1].n_type) == 0) { 195 error("No namelist"); 196 return(0); 197 } 198 } 199 return 1; 200 } 201 202 void 203 fetchip(void) 204 { 205 206 KREAD((void *)namelist[0].n_value, newstat.i, 207 sizeof(newstat.i)); 208 KREAD((void *)namelist[1].n_value, newstat.u, 209 sizeof(newstat.u)); 210 211 ADJINETCTR(curstat, oldstat, newstat, i[IP_STAT_TOTAL]); 212 ADJINETCTR(curstat, oldstat, newstat, i[IP_STAT_DELIVERED]); 213 ADJINETCTR(curstat, oldstat, newstat, i[IP_STAT_BADSUM]); 214 ADJINETCTR(curstat, oldstat, newstat, i[IP_STAT_TOOSHORT]); 215 ADJINETCTR(curstat, oldstat, newstat, i[IP_STAT_TOOSMALL]); 216 ADJINETCTR(curstat, oldstat, newstat, i[IP_STAT_BADHLEN]); 217 ADJINETCTR(curstat, oldstat, newstat, i[IP_STAT_BADLEN]); 218 ADJINETCTR(curstat, oldstat, newstat, i[IP_STAT_BADVERS]); 219 ADJINETCTR(curstat, oldstat, newstat, i[IP_STAT_TOOLONG]); 220 ADJINETCTR(curstat, oldstat, newstat, i[IP_STAT_BADOPTIONS]); 221 ADJINETCTR(curstat, oldstat, newstat, i[IP_STAT_LOCALOUT]); 222 ADJINETCTR(curstat, oldstat, newstat, i[IP_STAT_ODROPPED]); 223 ADJINETCTR(curstat, oldstat, newstat, i[IP_STAT_OFRAGMENTS]); 224 ADJINETCTR(curstat, oldstat, newstat, i[IP_STAT_CANTFRAG]); 225 ADJINETCTR(curstat, oldstat, newstat, i[IP_STAT_NOROUTE]); 226 ADJINETCTR(curstat, oldstat, newstat, i[IP_STAT_RAWOUT]); 227 ADJINETCTR(curstat, oldstat, newstat, i[IP_STAT_FRAGMENTS]); 228 ADJINETCTR(curstat, oldstat, newstat, i[IP_STAT_FRAGDROPPED]); 229 ADJINETCTR(curstat, oldstat, newstat, i[IP_STAT_FRAGTIMEOUT]); 230 ADJINETCTR(curstat, oldstat, newstat, i[IP_STAT_REASSEMBLED]); 231 ADJINETCTR(curstat, oldstat, newstat, i[IP_STAT_FORWARD]); 232 ADJINETCTR(curstat, oldstat, newstat, i[IP_STAT_FASTFORWARD]); 233 ADJINETCTR(curstat, oldstat, newstat, i[IP_STAT_CANTFORWARD]); 234 ADJINETCTR(curstat, oldstat, newstat, i[IP_STAT_REDIRECTSENT]); 235 ADJINETCTR(curstat, oldstat, newstat, u[UDP_STAT_OPACKETS]); 236 ADJINETCTR(curstat, oldstat, newstat, u[UDP_STAT_IPACKETS]); 237 ADJINETCTR(curstat, oldstat, newstat, u[UDP_STAT_HDROPS]); 238 ADJINETCTR(curstat, oldstat, newstat, u[UDP_STAT_BADSUM]); 239 ADJINETCTR(curstat, oldstat, newstat, u[UDP_STAT_BADLEN]); 240 ADJINETCTR(curstat, oldstat, newstat, u[UDP_STAT_NOPORT]); 241 ADJINETCTR(curstat, oldstat, newstat, u[UDP_STAT_NOPORTBCAST]); 242 ADJINETCTR(curstat, oldstat, newstat, u[UDP_STAT_FULLSOCK]); 243 244 if (update == UPDATE_TIME) 245 memcpy(&oldstat, &newstat, sizeof(oldstat)); 246 } 247 248 void 249 ip_boot(char *args) 250 { 251 252 memset(&oldstat, 0, sizeof(oldstat)); 253 update = UPDATE_BOOT; 254 } 255 256 void 257 ip_run(char *args) 258 { 259 260 if (update != UPDATE_RUN) { 261 memcpy(&oldstat, &newstat, sizeof(oldstat)); 262 update = UPDATE_RUN; 263 } 264 } 265 266 void 267 ip_time(char *args) 268 { 269 270 if (update != UPDATE_TIME) { 271 memcpy(&oldstat, &newstat, sizeof(oldstat)); 272 update = UPDATE_TIME; 273 } 274 } 275 276 void 277 ip_zero(char *args) 278 { 279 280 if (update == UPDATE_RUN) 281 memcpy(&oldstat, &newstat, sizeof(oldstat)); 282 } 283
Indexes created Tue Sep 23 14:10:03 GMT 2025