1 /* $NetBSD: ip.c,v 1.6 2000/04/27 21:40:41 thorpej Exp $ */ 2 3 /* 4 * Copyright (c) 1999 Andy Doran <ad@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 1.6 2000/04/27 21:40:41 thorpej Exp $"); 33 #endif /* not lint */ 34 35 #include <sys/param.h> 36 #include <sys/types.h> 37 #include <sys/socket.h> 38 #include <sys/sysctl.h> 39 40 #include <netinet/in.h> 41 #include <netinet/in_systm.h> 42 #include <netinet/ip.h> 43 #include <netinet/ip_var.h> 44 #include <netinet/udp.h> 45 #include <netinet/udp_var.h> 46 47 #include <stdlib.h> 48 #include <string.h> 49 #include <paths.h> 50 #include <nlist.h> 51 #include <kvm.h> 52 53 #include "systat.h" 54 #include "extern.h" 55 56 #define LHD(row, str) mvwprintw(wnd, row, 10, str) 57 #define RHD(row, str) mvwprintw(wnd, row, 45, str); 58 #define SHOW(stat, row, col) \ 59 mvwprintw(wnd, row, col, "%9llu", (unsigned long long)curstat.stat) 60 61 struct mystat { 62 struct ipstat i; 63 struct udpstat u; 64 }; 65 66 static struct mystat curstat; 67 68 static struct nlist namelist[] = { 69 { "_ipstat" }, 70 { "_udpstat" }, 71 { "" } 72 }; 73 74 WINDOW * 75 openip(void) 76 { 77 78 return (subwin(stdscr, LINES-5-1, 0, 5, 0)); 79 } 80 81 void 82 closeip(w) 83 WINDOW *w; 84 { 85 86 if (w != NULL) { 87 wclear(w); 88 wrefresh(w); 89 delwin(w); 90 } 91 } 92 93 void 94 labelip(void) 95 { 96 97 wmove(wnd, 0, 0); wclrtoeol(wnd); 98 99 LHD(0, "total packets received"); 100 LHD(1, " passed to upper layers"); 101 LHD(2, " with bad checksums"); 102 LHD(3, " too short for header"); 103 LHD(4, " too short for data"); 104 LHD(5, " with invalid hlen"); 105 LHD(6, " with invalid length"); 106 LHD(7, " with invalid version"); 107 LHD(8, " too large"); 108 LHD(9, " option errors"); 109 LHD(10, " fragments received"); 110 LHD(11, " fragments dropped"); 111 LHD(12, " fragments timed out"); 112 LHD(13, " packets reassembled ok"); 113 114 LHD(15, "packets forwarded"); 115 LHD(16, " fast forwarded"); 116 LHD(17, " unreachable dests"); 117 LHD(18, " redirects generated"); 118 119 RHD(0, "total packets sent"); 120 RHD(1, " generated locally"); 121 RHD(2, " output drops"); 122 RHD(3, " output fragments generated"); 123 RHD(4, " fragmentation failed"); 124 RHD(5, " destinations unreachable"); 125 RHD(6, " packets output via raw IP"); 126 RHD(7, " total UDP packets sent"); 127 128 RHD(9, "total UDP packets recieved"); 129 RHD(10, " too short for header"); 130 RHD(11, " invalid checksum"); 131 RHD(12, " invalid length"); 132 RHD(13, " no socket for dest port"); 133 RHD(14, " no socket for broadcast"); 134 RHD(15, " socket buffer full"); 135 } 136 137 void 138 showip(void) 139 { 140 u_quad_t totalout; 141 142 totalout = curstat.i.ips_forward + curstat.i.ips_localout; 143 144 SHOW(i.ips_total, 0, 0); 145 mvwprintw(wnd, 0, 35, "%9llu", (unsigned long long)totalout); 146 SHOW(i.ips_delivered, 1, 0); 147 SHOW(i.ips_badsum, 2, 0); 148 SHOW(i.ips_tooshort, 3, 0); 149 SHOW(i.ips_toosmall, 4, 0); 150 SHOW(i.ips_badhlen, 5, 0); 151 SHOW(i.ips_badlen, 6, 0); 152 SHOW(i.ips_badvers, 7, 0); 153 SHOW(i.ips_toolong, 8, 0); 154 SHOW(i.ips_badoptions, 9, 0); 155 156 SHOW(i.ips_localout, 1, 35); 157 SHOW(i.ips_odropped, 2, 35); 158 SHOW(i.ips_ofragments, 3, 35); 159 SHOW(i.ips_cantfrag, 4, 35); 160 SHOW(i.ips_noroute, 5, 35); 161 SHOW(i.ips_rawout, 6, 35); 162 SHOW(u.udps_opackets, 7, 35); 163 164 SHOW(i.ips_fragments, 10, 0); 165 SHOW(i.ips_fragdropped, 11, 0); 166 SHOW(i.ips_fragtimeout, 12, 0); 167 SHOW(i.ips_reassembled, 13, 0); 168 169 SHOW(i.ips_forward, 15, 0); 170 SHOW(i.ips_fastforward, 16, 0); 171 SHOW(i.ips_cantforward, 17, 0); 172 SHOW(i.ips_redirectsent, 18, 0); 173 174 SHOW(u.udps_ipackets, 9, 35); 175 SHOW(u.udps_hdrops, 10, 35); 176 SHOW(u.udps_badsum, 11, 35); 177 SHOW(u.udps_badlen, 12, 35); 178 SHOW(u.udps_noport, 13, 35); 179 SHOW(u.udps_noportbcast, 14, 35); 180 SHOW(u.udps_fullsock, 15, 35); 181 } 182 183 int 184 initip(void) 185 { 186 187 if (namelist[0].n_type == 0) { 188 if (kvm_nlist(kd, namelist)) { 189 nlisterr(namelist); 190 return(0); 191 } 192 if ((namelist[0].n_type | namelist[1].n_type) == 0) { 193 error("No namelist"); 194 return(0); 195 } 196 } 197 return 1; 198 } 199 200 void 201 fetchip(void) 202 { 203 204 KREAD((void *)namelist[0].n_value, &curstat.i, sizeof(curstat.i)); 205 KREAD((void *)namelist[1].n_value, &curstat.u, sizeof(curstat.u)); 206 } 207