1/*	$NetBSD: ip.c,v 1.17 2008/04/10 17:16:39 thorpej Exp $	*/
2
3/*
4 * Copyright (c) 1999, 2000 Andrew 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 1.17 2008/04/10 17:16:39 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
55struct mystat {
56	uint64_t i[IP_NSTATS];
57	uint64_t u[UDP_NSTATS];
58};
59
60enum update {
61	UPDATE_TIME,
62	UPDATE_BOOT,
63	UPDATE_RUN,
64};
65
66static enum update update = UPDATE_TIME;
67static struct mystat curstat;
68static struct mystat oldstat;
69static struct mystat newstat;
70
71WINDOW *
72openip(void)
73{
74
75	return (subwin(stdscr, -1, 0, 5, 0));
76}
77
78void
79closeip(WINDOW *w)
80{
81
82	if (w != NULL) {
83		wclear(w);
84		wrefresh(w);
85		delwin(w);
86	}
87}
88
89void
90labelip(void)
91{
92
93	wmove(wnd, 0, 0); wclrtoeol(wnd);
94
95	LHD(0,  "total packets received");
96	LHD(1,  "  passed to upper layers");
97	LHD(2,  "  with bad checksums");
98	LHD(3,  "  too short for header");
99	LHD(4,  "  too short for data");
100	LHD(5,  "  with invalid hlen");
101	LHD(6,  "  with invalid length");
102	LHD(7,  "  with invalid version");
103	LHD(8,  "  too large");
104	LHD(9,  "  option errors");
105	LHD(10, "  fragments received");
106	LHD(11, "  fragments dropped");
107	LHD(12, "  fragments timed out");
108	LHD(13, "  packets reassembled ok");
109
110	LHD(15, "packets forwarded");
111	LHD(16, "  fast forwarded");
112	LHD(17, "  unreachable dests");
113	LHD(18, "  redirects generated");
114
115	RHD(0,  "total packets sent");
116	RHD(1,  "  generated locally");
117	RHD(2,  "  output drops");
118	RHD(3,  "  output fragments generated");
119	RHD(4,  "  fragmentation failed");
120	RHD(5,  "  destinations unreachable");
121	RHD(6,  "  packets output via raw IP");
122	RHD(7,  "  total UDP packets sent");
123
124	RHD(9, "total UDP packets received");
125	RHD(10, "  too short for header");
126	RHD(11, "  invalid checksum");
127	RHD(12, "  invalid length");
128	RHD(13, "  no socket for dest port");
129	RHD(14, "  no socket for broadcast");
130	RHD(15, "  socket buffer full");
131}
132
133void
134showip(void)
135{
136	u_quad_t totalout;
137
138	totalout = curstat.i[IP_STAT_FORWARD] + curstat.i[IP_STAT_LOCALOUT];
139
140	SHOW(i[IP_STAT_TOTAL], 0, 0);
141	mvwprintw(wnd, 0, 35, "%9llu", (unsigned long long)totalout);
142	SHOW(i[IP_STAT_DELIVERED], 1, 0);
143	SHOW(i[IP_STAT_BADSUM], 2, 0);
144	SHOW(i[IP_STAT_TOOSHORT], 3, 0);
145	SHOW(i[IP_STAT_TOOSMALL], 4, 0);
146	SHOW(i[IP_STAT_BADHLEN], 5, 0);
147	SHOW(i[IP_STAT_BADLEN], 6, 0);
148	SHOW(i[IP_STAT_BADVERS], 7, 0);
149	SHOW(i[IP_STAT_TOOLONG], 8, 0);
150	SHOW(i[IP_STAT_BADOPTIONS], 9, 0);
151
152	SHOW(i[IP_STAT_LOCALOUT], 1, 35);
153	SHOW(i[IP_STAT_ODROPPED], 2, 35);
154	SHOW(i[IP_STAT_OFRAGMENTS], 3, 35);
155	SHOW(i[IP_STAT_CANTFRAG], 4, 35);
156	SHOW(i[IP_STAT_NOROUTE], 5, 35);
157	SHOW(i[IP_STAT_RAWOUT], 6, 35);
158	SHOW(u[UDP_STAT_OPACKETS], 7, 35);
159
160	SHOW(i[IP_STAT_FRAGMENTS], 10, 0);
161	SHOW(i[IP_STAT_FRAGDROPPED], 11, 0);
162	SHOW(i[IP_STAT_FRAGTIMEOUT], 12, 0);
163	SHOW(i[IP_STAT_REASSEMBLED], 13, 0);
164
165	SHOW(i[IP_STAT_FORWARD], 15, 0);
166	SHOW(i[IP_STAT_FASTFORWARD], 16, 0);
167	SHOW(i[IP_STAT_CANTFORWARD], 17, 0);
168	SHOW(i[IP_STAT_REDIRECTSENT], 18, 0);
169
170	SHOW(u[UDP_STAT_IPACKETS], 9, 35);
171	SHOW(u[UDP_STAT_HDROPS], 10, 35);
172	SHOW(u[UDP_STAT_BADSUM], 11, 35);
173	SHOW(u[UDP_STAT_BADLEN], 12, 35);
174	SHOW(u[UDP_STAT_NOPORT], 13, 35);
175	SHOW(u[UDP_STAT_NOPORTBCAST], 14, 35);
176	SHOW(u[UDP_STAT_FULLSOCK], 15, 35);
177}
178
179int
180initip(void)
181{
182
183	return 1;
184}
185
186void
187fetchip(void)
188{
189	size_t size;
190
191	size = sizeof(newstat.i);
192	if (sysctlbyname("net.inet.ip.stats", newstat.i, &size, NULL, 0) == -1)
193		return;
194	size = sizeof(newstat.u);
195	if (sysctlbyname("net.inet.udp.stats", newstat.u, &size, NULL, 0) == -1)
196		return;
197
198	ADJINETCTR(curstat, oldstat, newstat, i[IP_STAT_TOTAL]);
199	ADJINETCTR(curstat, oldstat, newstat, i[IP_STAT_DELIVERED]);
200	ADJINETCTR(curstat, oldstat, newstat, i[IP_STAT_BADSUM]);
201	ADJINETCTR(curstat, oldstat, newstat, i[IP_STAT_TOOSHORT]);
202	ADJINETCTR(curstat, oldstat, newstat, i[IP_STAT_TOOSMALL]);
203	ADJINETCTR(curstat, oldstat, newstat, i[IP_STAT_BADHLEN]);
204	ADJINETCTR(curstat, oldstat, newstat, i[IP_STAT_BADLEN]);
205	ADJINETCTR(curstat, oldstat, newstat, i[IP_STAT_BADVERS]);
206	ADJINETCTR(curstat, oldstat, newstat, i[IP_STAT_TOOLONG]);
207	ADJINETCTR(curstat, oldstat, newstat, i[IP_STAT_BADOPTIONS]);
208	ADJINETCTR(curstat, oldstat, newstat, i[IP_STAT_LOCALOUT]);
209	ADJINETCTR(curstat, oldstat, newstat, i[IP_STAT_ODROPPED]);
210	ADJINETCTR(curstat, oldstat, newstat, i[IP_STAT_OFRAGMENTS]);
211	ADJINETCTR(curstat, oldstat, newstat, i[IP_STAT_CANTFRAG]);
212	ADJINETCTR(curstat, oldstat, newstat, i[IP_STAT_NOROUTE]);
213	ADJINETCTR(curstat, oldstat, newstat, i[IP_STAT_RAWOUT]);
214	ADJINETCTR(curstat, oldstat, newstat, i[IP_STAT_FRAGMENTS]);
215	ADJINETCTR(curstat, oldstat, newstat, i[IP_STAT_FRAGDROPPED]);
216	ADJINETCTR(curstat, oldstat, newstat, i[IP_STAT_FRAGTIMEOUT]);
217	ADJINETCTR(curstat, oldstat, newstat, i[IP_STAT_REASSEMBLED]);
218	ADJINETCTR(curstat, oldstat, newstat, i[IP_STAT_FORWARD]);
219	ADJINETCTR(curstat, oldstat, newstat, i[IP_STAT_FASTFORWARD]);
220	ADJINETCTR(curstat, oldstat, newstat, i[IP_STAT_CANTFORWARD]);
221	ADJINETCTR(curstat, oldstat, newstat, i[IP_STAT_REDIRECTSENT]);
222	ADJINETCTR(curstat, oldstat, newstat, u[UDP_STAT_OPACKETS]);
223	ADJINETCTR(curstat, oldstat, newstat, u[UDP_STAT_IPACKETS]);
224	ADJINETCTR(curstat, oldstat, newstat, u[UDP_STAT_HDROPS]);
225	ADJINETCTR(curstat, oldstat, newstat, u[UDP_STAT_BADSUM]);
226	ADJINETCTR(curstat, oldstat, newstat, u[UDP_STAT_BADLEN]);
227	ADJINETCTR(curstat, oldstat, newstat, u[UDP_STAT_NOPORT]);
228	ADJINETCTR(curstat, oldstat, newstat, u[UDP_STAT_NOPORTBCAST]);
229	ADJINETCTR(curstat, oldstat, newstat, u[UDP_STAT_FULLSOCK]);
230
231	if (update == UPDATE_TIME)
232		memcpy(&oldstat, &newstat, sizeof(oldstat));
233}
234
235void
236ip_boot(char *args)
237{
238
239	memset(&oldstat, 0, sizeof(oldstat));
240	update = UPDATE_BOOT;
241}
242
243void
244ip_run(char *args)
245{
246
247	if (update != UPDATE_RUN) {
248		memcpy(&oldstat, &newstat, sizeof(oldstat));
249		update = UPDATE_RUN;
250	}
251}
252
253void
254ip_time(char *args)
255{
256
257	if (update != UPDATE_TIME) {
258		memcpy(&oldstat, &newstat, sizeof(oldstat));
259		update = UPDATE_TIME;
260	}
261}
262
263void
264ip_zero(char *args)
265{
266
267	if (update == UPDATE_RUN)
268		memcpy(&oldstat, &newstat, sizeof(oldstat));
269}
270