1/*-
2 * SPDX-License-Identifier: BSD-3-Clause
3 *
4 * Copyright (c) 1980, 1992, 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
34__FBSDID("$FreeBSD$");
35
36#ifdef lint
37static const char sccsid[] = "@(#)mbufs.c	8.1 (Berkeley) 6/6/93";
38#endif
39
40/* From:
41	"Id: mbufs.c,v 1.5 1997/02/24 20:59:03 wollman Exp"
42*/
43
44#ifdef INET6
45#include <sys/param.h>
46#include <sys/types.h>
47#include <sys/socket.h>
48#include <sys/sysctl.h>
49
50#include <netinet/in.h>
51#include <netinet/in_systm.h>
52#include <netinet/ip.h>
53#include <netinet6/ip6_var.h>
54
55#include <inttypes.h>
56#include <stdlib.h>
57#include <string.h>
58#include <paths.h>
59
60#include "systat.h"
61#include "extern.h"
62#include "mode.h"
63
64static struct ip6stat curstat, initstat, oldstat;
65
66/*-
67--0         1         2         3         4         5         6         7
68--0123456789012345678901234567890123456789012345678901234567890123456789012345
6900        IPv6 Input                         IPv6 Output
70019999999 total packets received   999999999 total packets sent
71029999999 - too short for header   999999999 - generated locally
72039999999 - too short for data     999999999 - output drops
73049999999 - with invalid version   999999999 output fragments generated
74059999999 total fragments received 999999999 - fragmentation failed
75069999999 - fragments dropped      999999999 destinations unreachable
76079999999 - fragments timed out    999999999 packets output via raw IP
77089999999 - fragments overflown
78099999999 - packets reassembled ok           Input next-header histogram
79109999999 packets forwarded        999999999  - destination options
80119999999 - unreachable dests      999999999  - hop-by-hop options
81129999999 - redirects generated    999999999  - IPv4
82139999999 option errors            999999999  - TCP
83149999999 unwanted multicasts      999999999  - UDP
84159999999 delivered to upper layer 999999999  - IPv6
85169999999 bad scope packets        999999999  - routing header
86179999999 address selection failed 999999999  - fragmentation header
8718                                 999999999  - ICMP6
8819                                 999999999  - none
89--0123456789012345678901234567890123456789012345678901234567890123456789012345
90--0         1         2         3         4         5         6         7
91*/
92
93WINDOW *
94openip6(void)
95{
96	return (subwin(stdscr, LINES-3-1, 0, MAINWIN_ROW, 0));
97}
98
99void
100closeip6(WINDOW *w)
101{
102	if (w == NULL)
103		return;
104	wclear(w);
105	wrefresh(w);
106	delwin(w);
107}
108
109void
110labelip6(void)
111{
112	wmove(wnd, 0, 0); wclrtoeol(wnd);
113#define L(row, str) mvwprintw(wnd, row, 10, str)
114#define R(row, str) mvwprintw(wnd, row, 45, str);
115	L(0, "IPv6 Input");		R(0, "IPv6 Output");
116	L(1, "total packets received");	R(1, "total packets sent");
117	L(2, "- too short for header");	R(2, "- generated locally");
118	L(3, "- too short for data");	R(3, "- output drops");
119	L(4, "- with invalid version");	R(4, "output fragments generated");
120	L(5, "total fragments received"); R(5, "- fragmentation failed");
121	L(6, "- fragments dropped");	R(6, "destinations unreachable");
122	L(7, "- fragments timed out");	R(7, "packets output via raw IP");
123	L(8, "- fragments overflown");
124	L(9, "- atomic fragments"); 	R(9, "Input next-header histogram");
125	L(10, "- packets reassembled ok"); R(10, " - destination options");
126	L(11, "packets forwarded");	R(11, " - hop-by-hop options");
127	L(12, "- unreachable dests");	R(12, " - IPv4");
128	L(13, "- redirects generated");	R(13, " - TCP");
129	L(14, "option errors");		R(14, " - UDP");
130	L(15, "unwanted multicasts");	R(15, " - IPv6");
131	L(16, "delivered to upper layer"); R(16, " - routing header");
132	L(17, "bad scope packets");	R(17, " - fragmentation header");
133	L(18, "address selection failed");R(18, " - ICMP6");
134					R(19, " - none");
135#undef L
136#undef R
137}
138
139static void
140domode(struct ip6stat *ret)
141{
142	const struct ip6stat *sub;
143	int divisor = 1, i;
144
145	switch(currentmode) {
146	case display_RATE:
147		sub = &oldstat;
148		divisor = (delay > 1000000) ? delay / 1000000 : 1;
149		break;
150	case display_DELTA:
151		sub = &oldstat;
152		break;
153	case display_SINCE:
154		sub = &initstat;
155		break;
156	default:
157		*ret = curstat;
158		return;
159	}
160#define DO(stat) ret->stat = (curstat.stat - sub->stat) / divisor
161	DO(ip6s_total);
162	DO(ip6s_tooshort);
163	DO(ip6s_toosmall);
164	DO(ip6s_fragments);
165	DO(ip6s_fragdropped);
166	DO(ip6s_fragtimeout);
167	DO(ip6s_fragoverflow);
168	DO(ip6s_atomicfrags);
169	DO(ip6s_forward);
170	DO(ip6s_cantforward);
171	DO(ip6s_redirectsent);
172	DO(ip6s_delivered);
173	DO(ip6s_localout);
174	DO(ip6s_odropped);
175	DO(ip6s_reassembled);
176	DO(ip6s_fragmented);
177	DO(ip6s_ofragments);
178	DO(ip6s_cantfrag);
179	DO(ip6s_badoptions);
180	DO(ip6s_noroute);
181	DO(ip6s_badvers);
182	DO(ip6s_rawout);
183	DO(ip6s_notmember);
184	for (i = 0; i < 256; i++)
185		DO(ip6s_nxthist[i]);
186	DO(ip6s_badscope);
187	DO(ip6s_sources_none);
188#undef DO
189}
190
191void
192showip6(void)
193{
194	struct ip6stat stats;
195	uint64_t totalout;
196
197	domode(&stats);
198	totalout = stats.ip6s_forward + stats.ip6s_localout;
199
200#define DO(stat, row, col) \
201	mvwprintw(wnd, row, col, "%9"PRIu64, stats.stat)
202
203	DO(ip6s_total, 1, 0);
204	mvwprintw(wnd, 1, 35, "%9"PRIu64, totalout);
205	DO(ip6s_tooshort, 2, 0);
206	DO(ip6s_localout, 2, 35);
207	DO(ip6s_toosmall, 3, 0);
208	DO(ip6s_odropped, 3, 35);
209	DO(ip6s_badvers, 4, 0);
210	DO(ip6s_ofragments, 4, 35);
211	DO(ip6s_fragments, 5, 0);
212	DO(ip6s_cantfrag, 5, 35);
213	DO(ip6s_fragdropped, 6, 0);
214	DO(ip6s_noroute, 6, 35);
215	DO(ip6s_fragtimeout, 7, 0);
216	DO(ip6s_rawout, 7, 35);
217	DO(ip6s_fragoverflow, 8, 0);
218	DO(ip6s_atomicfrags, 9, 0);
219	DO(ip6s_reassembled, 10, 0);
220	DO(ip6s_forward, 11, 0);
221	DO(ip6s_nxthist[IPPROTO_DSTOPTS], 10, 35);
222	DO(ip6s_cantforward, 12, 0);
223	DO(ip6s_nxthist[IPPROTO_HOPOPTS], 11, 35);
224	DO(ip6s_redirectsent, 13, 0);
225	DO(ip6s_nxthist[IPPROTO_IPV4], 12, 35);
226	DO(ip6s_badoptions, 14, 0);
227	DO(ip6s_nxthist[IPPROTO_TCP], 13, 35);
228	DO(ip6s_notmember, 15, 0);
229	DO(ip6s_nxthist[IPPROTO_UDP], 14, 35);
230	DO(ip6s_delivered, 16, 0);
231	DO(ip6s_nxthist[IPPROTO_IPV6], 15, 35);
232	DO(ip6s_badscope, 17, 0);
233	DO(ip6s_nxthist[IPPROTO_ROUTING], 16, 35);
234	DO(ip6s_sources_none, 18, 0);
235	DO(ip6s_nxthist[IPPROTO_FRAGMENT], 17, 35);
236	DO(ip6s_nxthist[IPPROTO_ICMPV6], 18, 35);
237	DO(ip6s_nxthist[IPPROTO_NONE], 19, 35);
238#undef DO
239}
240
241int
242initip6(void)
243{
244	size_t len;
245	int name[4];
246
247	name[0] = CTL_NET;
248	name[1] = PF_INET6;
249	name[2] = IPPROTO_IPV6;
250	name[3] = IPV6CTL_STATS;
251
252	len = 0;
253	if (sysctl(name, 4, 0, &len, 0, 0) < 0) {
254		error("sysctl getting ip6stat size failed");
255		return 0;
256	}
257	if (len > sizeof curstat) {
258		error("ip6stat structure has grown--recompile systat!");
259		return 0;
260	}
261	if (sysctl(name, 4, &initstat, &len, 0, 0) < 0) {
262		error("sysctl getting ip6stat failed");
263		return 0;
264	}
265	oldstat = initstat;
266	return 1;
267}
268
269void
270resetip6(void)
271{
272	size_t len;
273	int name[4];
274
275	name[0] = CTL_NET;
276	name[1] = PF_INET6;
277	name[2] = IPPROTO_IPV6;
278	name[3] = IPV6CTL_STATS;
279
280	len = sizeof initstat;
281	if (sysctl(name, 4, &initstat, &len, 0, 0) < 0) {
282		error("sysctl getting ipstat failed");
283	}
284
285	oldstat = initstat;
286}
287
288void
289fetchip6(void)
290{
291	int name[4];
292	size_t len;
293
294	oldstat = curstat;
295	name[0] = CTL_NET;
296	name[1] = PF_INET6;
297	name[2] = IPPROTO_IPV6;
298	name[3] = IPV6CTL_STATS;
299	len = sizeof curstat;
300
301	if (sysctl(name, 4, &curstat, &len, 0, 0) < 0)
302		return;
303}
304
305#endif
306