1/*-
2 * Copyright (c) 1980, 1992, 1993
3 * The Regents of the University of California. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by the University of
16 * California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 */
33
34#include <sys/cdefs.h>
35
| 1/*-
2 * Copyright (c) 1980, 1992, 1993
3 * The Regents of the University of California. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by the University of
16 * California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 */
33
34#include <sys/cdefs.h>
35
|
36__FBSDID("$FreeBSD: head/usr.bin/systat/netstat.c 92922 2002-03-22 01:42:45Z imp $");
| 36__FBSDID("$FreeBSD: head/usr.bin/systat/netstat.c 100591 2002-07-24 03:02:43Z jdp $");
|
37
38#ifdef lint
39static const char sccsid[] = "@(#)netstat.c 8.1 (Berkeley) 6/6/93";
40#endif
41
42/*
43 * netstat
44 */
45#include <sys/param.h>
46#include <sys/queue.h>
47#include <sys/socket.h>
48#include <sys/socketvar.h>
49#include <sys/protosw.h>
50
51#include <netinet/in.h>
52#include <arpa/inet.h>
53#include <net/route.h>
54#include <netinet/in_systm.h>
55#include <netinet/ip.h>
56#include <netinet/in_pcb.h>
57#include <netinet/ip_icmp.h>
58#include <netinet/icmp_var.h>
59#include <netinet/ip_var.h>
60#include <netinet/tcp.h>
61#include <netinet/tcpip.h>
62#include <netinet/tcp_seq.h>
63#include <netinet/tcp_var.h>
64#define TCPSTATES
65#include <netinet/tcp_fsm.h>
66#include <netinet/tcp_timer.h>
67#include <netinet/tcp_var.h>
68#include <netinet/tcp_debug.h>
69#include <netinet/udp.h>
70#include <netinet/udp_var.h>
71
72#include <netdb.h>
73#include <nlist.h>
74#include <paths.h>
75#include <stdlib.h>
76#include <string.h>
77
78#include "systat.h"
79#include "extern.h"
80
81static struct netinfo *enter(struct inpcb *, int, const char *);
82static void enter_kvm(struct inpcb *, struct socket *, int, const char *);
83static void enter_sysctl(struct inpcb *, struct xsocket *, int, const char *);
84static void fetchnetstat_kvm(void);
85static void fetchnetstat_sysctl(void);
86static char *inetname(struct in_addr);
87static void inetprint(struct in_addr *, int, const char *);
88
89#define streq(a,b) (strcmp(a,b)==0)
90#define YMAX(w) ((w)->_maxy-1)
91
92WINDOW *
93opennetstat()
94{
95 sethostent(1);
96 setnetent(1);
97 return (subwin(stdscr, LINES-5-1, 0, 5, 0));
98}
99
100struct netinfo {
101 TAILQ_ENTRY(netinfo) chain;
102 short ni_line; /* line on screen */
103 short ni_seen; /* 0 when not present in list */
104 short ni_flags;
105#define NIF_LACHG 0x1 /* local address changed */
106#define NIF_FACHG 0x2 /* foreign address changed */
107 short ni_state; /* tcp state */
108 const char *ni_proto; /* protocol */
109 struct in_addr ni_laddr; /* local address */
110 long ni_lport; /* local port */
111 struct in_addr ni_faddr; /* foreign address */
112 long ni_fport; /* foreign port */
| 37
38#ifdef lint
39static const char sccsid[] = "@(#)netstat.c 8.1 (Berkeley) 6/6/93";
40#endif
41
42/*
43 * netstat
44 */
45#include <sys/param.h>
46#include <sys/queue.h>
47#include <sys/socket.h>
48#include <sys/socketvar.h>
49#include <sys/protosw.h>
50
51#include <netinet/in.h>
52#include <arpa/inet.h>
53#include <net/route.h>
54#include <netinet/in_systm.h>
55#include <netinet/ip.h>
56#include <netinet/in_pcb.h>
57#include <netinet/ip_icmp.h>
58#include <netinet/icmp_var.h>
59#include <netinet/ip_var.h>
60#include <netinet/tcp.h>
61#include <netinet/tcpip.h>
62#include <netinet/tcp_seq.h>
63#include <netinet/tcp_var.h>
64#define TCPSTATES
65#include <netinet/tcp_fsm.h>
66#include <netinet/tcp_timer.h>
67#include <netinet/tcp_var.h>
68#include <netinet/tcp_debug.h>
69#include <netinet/udp.h>
70#include <netinet/udp_var.h>
71
72#include <netdb.h>
73#include <nlist.h>
74#include <paths.h>
75#include <stdlib.h>
76#include <string.h>
77
78#include "systat.h"
79#include "extern.h"
80
81static struct netinfo *enter(struct inpcb *, int, const char *);
82static void enter_kvm(struct inpcb *, struct socket *, int, const char *);
83static void enter_sysctl(struct inpcb *, struct xsocket *, int, const char *);
84static void fetchnetstat_kvm(void);
85static void fetchnetstat_sysctl(void);
86static char *inetname(struct in_addr);
87static void inetprint(struct in_addr *, int, const char *);
88
89#define streq(a,b) (strcmp(a,b)==0)
90#define YMAX(w) ((w)->_maxy-1)
91
92WINDOW *
93opennetstat()
94{
95 sethostent(1);
96 setnetent(1);
97 return (subwin(stdscr, LINES-5-1, 0, 5, 0));
98}
99
100struct netinfo {
101 TAILQ_ENTRY(netinfo) chain;
102 short ni_line; /* line on screen */
103 short ni_seen; /* 0 when not present in list */
104 short ni_flags;
105#define NIF_LACHG 0x1 /* local address changed */
106#define NIF_FACHG 0x2 /* foreign address changed */
107 short ni_state; /* tcp state */
108 const char *ni_proto; /* protocol */
109 struct in_addr ni_laddr; /* local address */
110 long ni_lport; /* local port */
111 struct in_addr ni_faddr; /* foreign address */
112 long ni_fport; /* foreign port */
|
113 long ni_rcvcc; /* rcv buffer character count */
114 long ni_sndcc; /* snd buffer character count */
| 113 u_int ni_rcvcc; /* rcv buffer character count */
114 u_int ni_sndcc; /* snd buffer character count */
|
115};
116
117TAILQ_HEAD(netinfohead, netinfo) netcb = TAILQ_HEAD_INITIALIZER(netcb);
118
119static int aflag = 0;
120static int nflag = 0;
121static int lastrow = 1;
122
123void
124closenetstat(w)
125 WINDOW *w;
126{
127 struct netinfo *p;
128
129 endhostent();
130 endnetent();
131 TAILQ_FOREACH(p, &netcb, chain) {
132 if (p->ni_line != -1)
133 lastrow--;
134 p->ni_line = -1;
135 }
136 if (w != NULL) {
137 wclear(w);
138 wrefresh(w);
139 delwin(w);
140 }
141}
142
143static const char *miblist[] = {
144 "net.inet.tcp.pcblist",
145 "net.inet.udp.pcblist"
146};
147
148struct nlist namelist[] = {
149#define X_TCB 0
150 { "tcb" },
151#define X_UDB 1
152 { "udb" },
153 { "" },
154};
155
156int
157initnetstat()
158{
159 protos = TCP|UDP;
160 return(1);
161}
162
163void
164fetchnetstat()
165{
166 if (use_kvm)
167 fetchnetstat_kvm();
168 else
169 fetchnetstat_sysctl();
170}
171
172static void
173fetchnetstat_kvm()
174{
175 struct inpcb *next;
176 struct netinfo *p;
177 struct inpcbhead head;
178 struct inpcb inpcb;
179 struct socket sockb;
180 struct tcpcb tcpcb;
181 void *off;
182 int istcp;
183
184 if (namelist[X_TCB].n_value == 0)
185 return;
186 TAILQ_FOREACH(p, &netcb, chain)
187 p->ni_seen = 0;
188 if (protos&TCP) {
189 off = NPTR(X_TCB);
190 istcp = 1;
191 }
192 else if (protos&UDP) {
193 off = NPTR(X_UDB);
194 istcp = 0;
195 }
196 else {
197 error("No protocols to display");
198 return;
199 }
200again:
201 KREAD(off, &head, sizeof (struct inpcbhead));
202 LIST_FOREACH(next, &head, inp_list) {
203 KREAD(next, &inpcb, sizeof (inpcb));
204 next = &inpcb;
205 if (!aflag && inet_lnaof(inpcb.inp_laddr) == INADDR_ANY)
206 continue;
207 if (nhosts && !checkhost(&inpcb))
208 continue;
209 if (nports && !checkport(&inpcb))
210 continue;
211 KREAD(inpcb.inp_socket, &sockb, sizeof (sockb));
212 if (istcp) {
213 KREAD(inpcb.inp_ppcb, &tcpcb, sizeof (tcpcb));
214 enter_kvm(&inpcb, &sockb, tcpcb.t_state, "tcp");
215 } else
216 enter_kvm(&inpcb, &sockb, 0, "udp");
217 }
218 if (istcp && (protos&UDP)) {
219 istcp = 0;
220 off = NPTR(X_UDB);
221 goto again;
222 }
223}
224
225static void
226fetchnetstat_sysctl()
227{
228 struct netinfo *p;
229 int idx;
230 struct xinpgen *inpg;
231 char *cur, *end;
232 struct inpcb *inpcb;
233 struct xinpcb *xip;
234 struct xtcpcb *xtp;
235 int plen;
236 size_t lsz;
237
238 TAILQ_FOREACH(p, &netcb, chain)
239 p->ni_seen = 0;
240 if (protos&TCP) {
241 idx = 0;
242 } else if (protos&UDP) {
243 idx = 1;
244 } else {
245 error("No protocols to display");
246 return;
247 }
248
249 for (;idx < 2; idx++) {
250 if (idx == 1 && !(protos&UDP))
251 break;
252 inpg = (struct xinpgen *)sysctl_dynread(miblist[idx], &lsz);
253 if (inpg == NULL) {
254 error("sysctl(%s...) failed", miblist[idx]);
255 continue;
256 }
257 /*
258 * We currently do no require a consistent pcb list.
259 * Try to be robust in case of struct size changes
260 */
261 cur = ((char *)inpg) + inpg->xig_len;
262 /* There is also a trailing struct xinpgen */
263 end = ((char *)inpg) + lsz - inpg->xig_len;
264 if (end <= cur) {
265 free(inpg);
266 continue;
267 }
268 if (idx == 0) { /* TCP */
269 xtp = (struct xtcpcb *)cur;
270 plen = xtp->xt_len;
271 } else {
272 xip = (struct xinpcb *)cur;
273 plen = xip->xi_len;
274 }
275 while (cur + plen <= end) {
276 if (idx == 0) { /* TCP */
277 xtp = (struct xtcpcb *)cur;
278 inpcb = &xtp->xt_inp;
279 } else {
280 xip = (struct xinpcb *)cur;
281 inpcb = &xip->xi_inp;
282 }
283 cur += plen;
284
285 if (!aflag && inet_lnaof(inpcb->inp_laddr) ==
286 INADDR_ANY)
287 continue;
288 if (nhosts && !checkhost(inpcb))
289 continue;
290 if (nports && !checkport(inpcb))
291 continue;
292 if (idx == 0) /* TCP */
293 enter_sysctl(inpcb, &xtp->xt_socket,
294 xtp->xt_tp.t_state, "tcp");
295 else /* UDP */
296 enter_sysctl(inpcb, &xip->xi_socket, 0, "udp");
297 }
298 free(inpg);
299 }
300}
301
302static void
303enter_kvm(inp, so, state, proto)
304 struct inpcb *inp;
305 struct socket *so;
306 int state;
307 const char *proto;
308{
309 struct netinfo *p;
310
311 if ((p = enter(inp, state, proto)) != NULL) {
312 p->ni_rcvcc = so->so_rcv.sb_cc;
313 p->ni_sndcc = so->so_snd.sb_cc;
314 }
315}
316
317static void
318enter_sysctl(inp, so, state, proto)
319 struct inpcb *inp;
320 struct xsocket *so;
321 int state;
322 const char *proto;
323{
324 struct netinfo *p;
325
326 if ((p = enter(inp, state, proto)) != NULL) {
327 p->ni_rcvcc = so->so_rcv.sb_cc;
328 p->ni_sndcc = so->so_snd.sb_cc;
329 }
330}
331
332
333static struct netinfo *
334enter(inp, state, proto)
335 struct inpcb *inp;
336 int state;
337 const char *proto;
338{
339 struct netinfo *p;
340
341 /*
342 * Only take exact matches, any sockets with
343 * previously unbound addresses will be deleted
344 * below in the display routine because they
345 * will appear as ``not seen'' in the kernel
346 * data structures.
347 */
348 TAILQ_FOREACH(p, &netcb, chain) {
349 if (!streq(proto, p->ni_proto))
350 continue;
351 if (p->ni_lport != inp->inp_lport ||
352 p->ni_laddr.s_addr != inp->inp_laddr.s_addr)
353 continue;
354 if (p->ni_faddr.s_addr == inp->inp_faddr.s_addr &&
355 p->ni_fport == inp->inp_fport)
356 break;
357 }
358 if (p == NULL) {
359 if ((p = malloc(sizeof(*p))) == NULL) {
360 error("Out of memory");
361 return NULL;
362 }
363 TAILQ_INSERT_HEAD(&netcb, p, chain);
364 p->ni_line = -1;
365 p->ni_laddr = inp->inp_laddr;
366 p->ni_lport = inp->inp_lport;
367 p->ni_faddr = inp->inp_faddr;
368 p->ni_fport = inp->inp_fport;
369 p->ni_proto = strdup(proto);
370 p->ni_flags = NIF_LACHG|NIF_FACHG;
371 }
372 p->ni_state = state;
373 p->ni_seen = 1;
374 return p;
375}
376
377/* column locations */
378#define LADDR 0
379#define FADDR LADDR+23
380#define PROTO FADDR+23
381#define RCVCC PROTO+6
382#define SNDCC RCVCC+7
383#define STATE SNDCC+7
384
385
386void
387labelnetstat()
388{
389 if (use_kvm && namelist[X_TCB].n_type == 0)
390 return;
391 wmove(wnd, 0, 0); wclrtobot(wnd);
392 mvwaddstr(wnd, 0, LADDR, "Local Address");
393 mvwaddstr(wnd, 0, FADDR, "Foreign Address");
394 mvwaddstr(wnd, 0, PROTO, "Proto");
395 mvwaddstr(wnd, 0, RCVCC, "Recv-Q");
396 mvwaddstr(wnd, 0, SNDCC, "Send-Q");
397 mvwaddstr(wnd, 0, STATE, "(state)");
398}
399
400void
401shownetstat()
402{
403 struct netinfo *p, *q;
404
405 /*
406 * First, delete any connections that have gone
407 * away and adjust the position of connections
408 * below to reflect the deleted line.
409 */
410 p = TAILQ_FIRST(&netcb);
411 while (p != NULL) {
412 if (p->ni_line == -1 || p->ni_seen) {
413 p = TAILQ_NEXT(p, chain);
414 continue;
415 }
416 wmove(wnd, p->ni_line, 0); wdeleteln(wnd);
417 TAILQ_FOREACH(q, &netcb, chain)
418 if (q != p && q->ni_line > p->ni_line) {
419 q->ni_line--;
420 /* this shouldn't be necessary */
421 q->ni_flags |= NIF_LACHG|NIF_FACHG;
422 }
423 lastrow--;
424 q = TAILQ_NEXT(p, chain);
425 TAILQ_REMOVE(&netcb, p, chain);
426 free(p);
427 p = q;
428 }
429 /*
430 * Update existing connections and add new ones.
431 */
432 TAILQ_FOREACH(p, &netcb, chain) {
433 if (p->ni_line == -1) {
434 /*
435 * Add a new entry if possible.
436 */
437 if (lastrow > YMAX(wnd))
438 continue;
439 p->ni_line = lastrow++;
440 p->ni_flags |= NIF_LACHG|NIF_FACHG;
441 }
442 if (p->ni_flags & NIF_LACHG) {
443 wmove(wnd, p->ni_line, LADDR);
444 inetprint(&p->ni_laddr, p->ni_lport, p->ni_proto);
445 p->ni_flags &= ~NIF_LACHG;
446 }
447 if (p->ni_flags & NIF_FACHG) {
448 wmove(wnd, p->ni_line, FADDR);
449 inetprint(&p->ni_faddr, p->ni_fport, p->ni_proto);
450 p->ni_flags &= ~NIF_FACHG;
451 }
452 mvwaddstr(wnd, p->ni_line, PROTO, p->ni_proto);
| 115};
116
117TAILQ_HEAD(netinfohead, netinfo) netcb = TAILQ_HEAD_INITIALIZER(netcb);
118
119static int aflag = 0;
120static int nflag = 0;
121static int lastrow = 1;
122
123void
124closenetstat(w)
125 WINDOW *w;
126{
127 struct netinfo *p;
128
129 endhostent();
130 endnetent();
131 TAILQ_FOREACH(p, &netcb, chain) {
132 if (p->ni_line != -1)
133 lastrow--;
134 p->ni_line = -1;
135 }
136 if (w != NULL) {
137 wclear(w);
138 wrefresh(w);
139 delwin(w);
140 }
141}
142
143static const char *miblist[] = {
144 "net.inet.tcp.pcblist",
145 "net.inet.udp.pcblist"
146};
147
148struct nlist namelist[] = {
149#define X_TCB 0
150 { "tcb" },
151#define X_UDB 1
152 { "udb" },
153 { "" },
154};
155
156int
157initnetstat()
158{
159 protos = TCP|UDP;
160 return(1);
161}
162
163void
164fetchnetstat()
165{
166 if (use_kvm)
167 fetchnetstat_kvm();
168 else
169 fetchnetstat_sysctl();
170}
171
172static void
173fetchnetstat_kvm()
174{
175 struct inpcb *next;
176 struct netinfo *p;
177 struct inpcbhead head;
178 struct inpcb inpcb;
179 struct socket sockb;
180 struct tcpcb tcpcb;
181 void *off;
182 int istcp;
183
184 if (namelist[X_TCB].n_value == 0)
185 return;
186 TAILQ_FOREACH(p, &netcb, chain)
187 p->ni_seen = 0;
188 if (protos&TCP) {
189 off = NPTR(X_TCB);
190 istcp = 1;
191 }
192 else if (protos&UDP) {
193 off = NPTR(X_UDB);
194 istcp = 0;
195 }
196 else {
197 error("No protocols to display");
198 return;
199 }
200again:
201 KREAD(off, &head, sizeof (struct inpcbhead));
202 LIST_FOREACH(next, &head, inp_list) {
203 KREAD(next, &inpcb, sizeof (inpcb));
204 next = &inpcb;
205 if (!aflag && inet_lnaof(inpcb.inp_laddr) == INADDR_ANY)
206 continue;
207 if (nhosts && !checkhost(&inpcb))
208 continue;
209 if (nports && !checkport(&inpcb))
210 continue;
211 KREAD(inpcb.inp_socket, &sockb, sizeof (sockb));
212 if (istcp) {
213 KREAD(inpcb.inp_ppcb, &tcpcb, sizeof (tcpcb));
214 enter_kvm(&inpcb, &sockb, tcpcb.t_state, "tcp");
215 } else
216 enter_kvm(&inpcb, &sockb, 0, "udp");
217 }
218 if (istcp && (protos&UDP)) {
219 istcp = 0;
220 off = NPTR(X_UDB);
221 goto again;
222 }
223}
224
225static void
226fetchnetstat_sysctl()
227{
228 struct netinfo *p;
229 int idx;
230 struct xinpgen *inpg;
231 char *cur, *end;
232 struct inpcb *inpcb;
233 struct xinpcb *xip;
234 struct xtcpcb *xtp;
235 int plen;
236 size_t lsz;
237
238 TAILQ_FOREACH(p, &netcb, chain)
239 p->ni_seen = 0;
240 if (protos&TCP) {
241 idx = 0;
242 } else if (protos&UDP) {
243 idx = 1;
244 } else {
245 error("No protocols to display");
246 return;
247 }
248
249 for (;idx < 2; idx++) {
250 if (idx == 1 && !(protos&UDP))
251 break;
252 inpg = (struct xinpgen *)sysctl_dynread(miblist[idx], &lsz);
253 if (inpg == NULL) {
254 error("sysctl(%s...) failed", miblist[idx]);
255 continue;
256 }
257 /*
258 * We currently do no require a consistent pcb list.
259 * Try to be robust in case of struct size changes
260 */
261 cur = ((char *)inpg) + inpg->xig_len;
262 /* There is also a trailing struct xinpgen */
263 end = ((char *)inpg) + lsz - inpg->xig_len;
264 if (end <= cur) {
265 free(inpg);
266 continue;
267 }
268 if (idx == 0) { /* TCP */
269 xtp = (struct xtcpcb *)cur;
270 plen = xtp->xt_len;
271 } else {
272 xip = (struct xinpcb *)cur;
273 plen = xip->xi_len;
274 }
275 while (cur + plen <= end) {
276 if (idx == 0) { /* TCP */
277 xtp = (struct xtcpcb *)cur;
278 inpcb = &xtp->xt_inp;
279 } else {
280 xip = (struct xinpcb *)cur;
281 inpcb = &xip->xi_inp;
282 }
283 cur += plen;
284
285 if (!aflag && inet_lnaof(inpcb->inp_laddr) ==
286 INADDR_ANY)
287 continue;
288 if (nhosts && !checkhost(inpcb))
289 continue;
290 if (nports && !checkport(inpcb))
291 continue;
292 if (idx == 0) /* TCP */
293 enter_sysctl(inpcb, &xtp->xt_socket,
294 xtp->xt_tp.t_state, "tcp");
295 else /* UDP */
296 enter_sysctl(inpcb, &xip->xi_socket, 0, "udp");
297 }
298 free(inpg);
299 }
300}
301
302static void
303enter_kvm(inp, so, state, proto)
304 struct inpcb *inp;
305 struct socket *so;
306 int state;
307 const char *proto;
308{
309 struct netinfo *p;
310
311 if ((p = enter(inp, state, proto)) != NULL) {
312 p->ni_rcvcc = so->so_rcv.sb_cc;
313 p->ni_sndcc = so->so_snd.sb_cc;
314 }
315}
316
317static void
318enter_sysctl(inp, so, state, proto)
319 struct inpcb *inp;
320 struct xsocket *so;
321 int state;
322 const char *proto;
323{
324 struct netinfo *p;
325
326 if ((p = enter(inp, state, proto)) != NULL) {
327 p->ni_rcvcc = so->so_rcv.sb_cc;
328 p->ni_sndcc = so->so_snd.sb_cc;
329 }
330}
331
332
333static struct netinfo *
334enter(inp, state, proto)
335 struct inpcb *inp;
336 int state;
337 const char *proto;
338{
339 struct netinfo *p;
340
341 /*
342 * Only take exact matches, any sockets with
343 * previously unbound addresses will be deleted
344 * below in the display routine because they
345 * will appear as ``not seen'' in the kernel
346 * data structures.
347 */
348 TAILQ_FOREACH(p, &netcb, chain) {
349 if (!streq(proto, p->ni_proto))
350 continue;
351 if (p->ni_lport != inp->inp_lport ||
352 p->ni_laddr.s_addr != inp->inp_laddr.s_addr)
353 continue;
354 if (p->ni_faddr.s_addr == inp->inp_faddr.s_addr &&
355 p->ni_fport == inp->inp_fport)
356 break;
357 }
358 if (p == NULL) {
359 if ((p = malloc(sizeof(*p))) == NULL) {
360 error("Out of memory");
361 return NULL;
362 }
363 TAILQ_INSERT_HEAD(&netcb, p, chain);
364 p->ni_line = -1;
365 p->ni_laddr = inp->inp_laddr;
366 p->ni_lport = inp->inp_lport;
367 p->ni_faddr = inp->inp_faddr;
368 p->ni_fport = inp->inp_fport;
369 p->ni_proto = strdup(proto);
370 p->ni_flags = NIF_LACHG|NIF_FACHG;
371 }
372 p->ni_state = state;
373 p->ni_seen = 1;
374 return p;
375}
376
377/* column locations */
378#define LADDR 0
379#define FADDR LADDR+23
380#define PROTO FADDR+23
381#define RCVCC PROTO+6
382#define SNDCC RCVCC+7
383#define STATE SNDCC+7
384
385
386void
387labelnetstat()
388{
389 if (use_kvm && namelist[X_TCB].n_type == 0)
390 return;
391 wmove(wnd, 0, 0); wclrtobot(wnd);
392 mvwaddstr(wnd, 0, LADDR, "Local Address");
393 mvwaddstr(wnd, 0, FADDR, "Foreign Address");
394 mvwaddstr(wnd, 0, PROTO, "Proto");
395 mvwaddstr(wnd, 0, RCVCC, "Recv-Q");
396 mvwaddstr(wnd, 0, SNDCC, "Send-Q");
397 mvwaddstr(wnd, 0, STATE, "(state)");
398}
399
400void
401shownetstat()
402{
403 struct netinfo *p, *q;
404
405 /*
406 * First, delete any connections that have gone
407 * away and adjust the position of connections
408 * below to reflect the deleted line.
409 */
410 p = TAILQ_FIRST(&netcb);
411 while (p != NULL) {
412 if (p->ni_line == -1 || p->ni_seen) {
413 p = TAILQ_NEXT(p, chain);
414 continue;
415 }
416 wmove(wnd, p->ni_line, 0); wdeleteln(wnd);
417 TAILQ_FOREACH(q, &netcb, chain)
418 if (q != p && q->ni_line > p->ni_line) {
419 q->ni_line--;
420 /* this shouldn't be necessary */
421 q->ni_flags |= NIF_LACHG|NIF_FACHG;
422 }
423 lastrow--;
424 q = TAILQ_NEXT(p, chain);
425 TAILQ_REMOVE(&netcb, p, chain);
426 free(p);
427 p = q;
428 }
429 /*
430 * Update existing connections and add new ones.
431 */
432 TAILQ_FOREACH(p, &netcb, chain) {
433 if (p->ni_line == -1) {
434 /*
435 * Add a new entry if possible.
436 */
437 if (lastrow > YMAX(wnd))
438 continue;
439 p->ni_line = lastrow++;
440 p->ni_flags |= NIF_LACHG|NIF_FACHG;
441 }
442 if (p->ni_flags & NIF_LACHG) {
443 wmove(wnd, p->ni_line, LADDR);
444 inetprint(&p->ni_laddr, p->ni_lport, p->ni_proto);
445 p->ni_flags &= ~NIF_LACHG;
446 }
447 if (p->ni_flags & NIF_FACHG) {
448 wmove(wnd, p->ni_line, FADDR);
449 inetprint(&p->ni_faddr, p->ni_fport, p->ni_proto);
450 p->ni_flags &= ~NIF_FACHG;
451 }
452 mvwaddstr(wnd, p->ni_line, PROTO, p->ni_proto);
|
453 mvwprintw(wnd, p->ni_line, RCVCC, "%6d", p->ni_rcvcc);
454 mvwprintw(wnd, p->ni_line, SNDCC, "%6d", p->ni_sndcc);
| 453 mvwprintw(wnd, p->ni_line, RCVCC, "%6u", p->ni_rcvcc);
454 mvwprintw(wnd, p->ni_line, SNDCC, "%6u", p->ni_sndcc);
|
455 if (streq(p->ni_proto, "tcp")) {
456 if (p->ni_state < 0 || p->ni_state >= TCP_NSTATES)
457 mvwprintw(wnd, p->ni_line, STATE, "%d",
458 p->ni_state);
459 else
460 mvwaddstr(wnd, p->ni_line, STATE,
461 tcpstates[p->ni_state]);
462 }
463 wclrtoeol(wnd);
464 }
465 if (lastrow < YMAX(wnd)) {
466 wmove(wnd, lastrow, 0); wclrtobot(wnd);
467 wmove(wnd, YMAX(wnd), 0); wdeleteln(wnd); /* XXX */
468 }
469}
470
471/*
472 * Pretty print an Internet address (net address + port).
473 * If the nflag was specified, use numbers instead of names.
474 */
475static void
476inetprint(in, port, proto)
477 struct in_addr *in;
478 int port;
479 const char *proto;
480{
481 struct servent *sp = 0;
482 char line[80], *cp;
483
484 snprintf(line, sizeof(line), "%.*s.", 16, inetname(*in));
485 cp = index(line, '\0');
486 if (!nflag && port)
487 sp = getservbyport(port, proto);
488 if (sp || port == 0)
489 snprintf(cp, sizeof(line) - (cp - line), "%.8s",
490 sp ? sp->s_name : "*");
491 else
492 snprintf(cp, sizeof(line) - (cp - line), "%d",
493 ntohs((u_short)port));
494 /* pad to full column to clear any garbage */
495 cp = index(line, '\0');
496 while (cp - line < 22)
497 *cp++ = ' ';
498 line[22] = '\0';
499 waddstr(wnd, line);
500}
501
502/*
503 * Construct an Internet address representation.
504 * If the nflag has been supplied, give
505 * numeric value, otherwise try for symbolic name.
506 */
507static char *
508inetname(in)
509 struct in_addr in;
510{
511 char *cp = 0;
512 static char line[50];
513 struct hostent *hp;
514 struct netent *np;
515
516 if (!nflag && in.s_addr != INADDR_ANY) {
517 int net = inet_netof(in);
518 int lna = inet_lnaof(in);
519
520 if (lna == INADDR_ANY) {
521 np = getnetbyaddr(net, AF_INET);
522 if (np)
523 cp = np->n_name;
524 }
525 if (cp == 0) {
526 hp = gethostbyaddr((char *)&in, sizeof (in), AF_INET);
527 if (hp)
528 cp = hp->h_name;
529 }
530 }
531 if (in.s_addr == INADDR_ANY)
532 strcpy(line, "*");
533 else if (cp)
534 snprintf(line, sizeof(line), "%s", cp);
535 else {
536 in.s_addr = ntohl(in.s_addr);
537#define C(x) ((x) & 0xff)
538 snprintf(line, sizeof(line), "%u.%u.%u.%u", C(in.s_addr >> 24),
539 C(in.s_addr >> 16), C(in.s_addr >> 8), C(in.s_addr));
540 }
541 return (line);
542}
543
544int
545cmdnetstat(cmd, args)
546 const char *cmd, *args;
547{
548 if (prefix(cmd, "all")) {
549 aflag = !aflag;
550 goto fixup;
551 }
552 if (prefix(cmd, "numbers") || prefix(cmd, "names")) {
553 struct netinfo *p;
554 int new;
555
556 new = prefix(cmd, "numbers");
557 if (new == nflag)
558 return (1);
559 TAILQ_FOREACH(p, &netcb, chain) {
560 if (p->ni_line == -1)
561 continue;
562 p->ni_flags |= NIF_LACHG|NIF_FACHG;
563 }
564 nflag = new;
565 goto redisplay;
566 }
567 if (!netcmd(cmd, args))
568 return (0);
569fixup:
570 fetchnetstat();
571redisplay:
572 shownetstat();
573 refresh();
574 return (1);
575}
| 455 if (streq(p->ni_proto, "tcp")) {
456 if (p->ni_state < 0 || p->ni_state >= TCP_NSTATES)
457 mvwprintw(wnd, p->ni_line, STATE, "%d",
458 p->ni_state);
459 else
460 mvwaddstr(wnd, p->ni_line, STATE,
461 tcpstates[p->ni_state]);
462 }
463 wclrtoeol(wnd);
464 }
465 if (lastrow < YMAX(wnd)) {
466 wmove(wnd, lastrow, 0); wclrtobot(wnd);
467 wmove(wnd, YMAX(wnd), 0); wdeleteln(wnd); /* XXX */
468 }
469}
470
471/*
472 * Pretty print an Internet address (net address + port).
473 * If the nflag was specified, use numbers instead of names.
474 */
475static void
476inetprint(in, port, proto)
477 struct in_addr *in;
478 int port;
479 const char *proto;
480{
481 struct servent *sp = 0;
482 char line[80], *cp;
483
484 snprintf(line, sizeof(line), "%.*s.", 16, inetname(*in));
485 cp = index(line, '\0');
486 if (!nflag && port)
487 sp = getservbyport(port, proto);
488 if (sp || port == 0)
489 snprintf(cp, sizeof(line) - (cp - line), "%.8s",
490 sp ? sp->s_name : "*");
491 else
492 snprintf(cp, sizeof(line) - (cp - line), "%d",
493 ntohs((u_short)port));
494 /* pad to full column to clear any garbage */
495 cp = index(line, '\0');
496 while (cp - line < 22)
497 *cp++ = ' ';
498 line[22] = '\0';
499 waddstr(wnd, line);
500}
501
502/*
503 * Construct an Internet address representation.
504 * If the nflag has been supplied, give
505 * numeric value, otherwise try for symbolic name.
506 */
507static char *
508inetname(in)
509 struct in_addr in;
510{
511 char *cp = 0;
512 static char line[50];
513 struct hostent *hp;
514 struct netent *np;
515
516 if (!nflag && in.s_addr != INADDR_ANY) {
517 int net = inet_netof(in);
518 int lna = inet_lnaof(in);
519
520 if (lna == INADDR_ANY) {
521 np = getnetbyaddr(net, AF_INET);
522 if (np)
523 cp = np->n_name;
524 }
525 if (cp == 0) {
526 hp = gethostbyaddr((char *)&in, sizeof (in), AF_INET);
527 if (hp)
528 cp = hp->h_name;
529 }
530 }
531 if (in.s_addr == INADDR_ANY)
532 strcpy(line, "*");
533 else if (cp)
534 snprintf(line, sizeof(line), "%s", cp);
535 else {
536 in.s_addr = ntohl(in.s_addr);
537#define C(x) ((x) & 0xff)
538 snprintf(line, sizeof(line), "%u.%u.%u.%u", C(in.s_addr >> 24),
539 C(in.s_addr >> 16), C(in.s_addr >> 8), C(in.s_addr));
540 }
541 return (line);
542}
543
544int
545cmdnetstat(cmd, args)
546 const char *cmd, *args;
547{
548 if (prefix(cmd, "all")) {
549 aflag = !aflag;
550 goto fixup;
551 }
552 if (prefix(cmd, "numbers") || prefix(cmd, "names")) {
553 struct netinfo *p;
554 int new;
555
556 new = prefix(cmd, "numbers");
557 if (new == nflag)
558 return (1);
559 TAILQ_FOREACH(p, &netcb, chain) {
560 if (p->ni_line == -1)
561 continue;
562 p->ni_flags |= NIF_LACHG|NIF_FACHG;
563 }
564 nflag = new;
565 goto redisplay;
566 }
567 if (!netcmd(cmd, args))
568 return (0);
569fixup:
570 fetchnetstat();
571redisplay:
572 shownetstat();
573 refresh();
574 return (1);
575}
|