1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
|
/* $OpenBSD: mbufs.c,v 1.36 2014/10/20 07:06:00 jsg Exp $ */
/*
* Copyright (c) 2008 Can Erkin Acar <canacar@openbsd.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <sys/param.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/sysctl.h>
#include <sys/mbuf.h>
#include <sys/pool.h>
#include <net/if.h>
#include <sys/sockio.h>
#include <sys/ioctl.h>
#include <err.h>
#include <errno.h>
#include <ifaddrs.h>
#include <stdlib.h>
#include <string.h>
#include "systat.h"
/* pool info */
int mbpool_index = -1;
int mclpools_index[MCLPOOLS];
int mclpool_count = 0;
struct kinfo_pool mbpool;
u_int mcllivelocks, mcllivelocks_cur, mcllivelocks_diff;
/* interfaces */
static int num_ifs = 0;
struct if_info {
char name[16];
struct if_rxrinfo data;
} *interfaces = NULL;
static int sock;
void print_mb(void);
int read_mb(void);
int select_mb(void);
static void showmbuf(struct if_info *, int, int);
/* Define fields */
field_def fields_mbuf[] = {
{"IFACE", 8, 16, 1, FLD_ALIGN_LEFT, -1, 0, 0, 0},
{"RXDELAY", 5, 8, 1, FLD_ALIGN_RIGHT, -1, 0, 0, 0},
{"TXDELAY", 5, 8, 1, FLD_ALIGN_RIGHT, -1, 0, 0, 0},
{"LIVELOCKS", 5, 10, 1, FLD_ALIGN_RIGHT, -1, 0, 0, 0},
{"SIZE", 3, 5, 1, FLD_ALIGN_RIGHT, -1, 0, 0, 0},
{"ALIVE", 3, 5, 1, FLD_ALIGN_RIGHT, -1, 0, 0, 0},
{"LWM", 3, 5, 1, FLD_ALIGN_RIGHT, -1, 0, 0, 0},
{"HWM", 3, 5, 1, FLD_ALIGN_RIGHT, -1, 0, 0, 0},
{"CWM", 3, 5, 1, FLD_ALIGN_RIGHT, -1, 0, 0, 0},
};
#define FLD_MB_IFACE FIELD_ADDR(fields_mbuf,0)
#define FLD_MB_RXDELAY FIELD_ADDR(fields_mbuf,1)
#define FLD_MB_TXDELAY FIELD_ADDR(fields_mbuf,2)
#define FLD_MB_LLOCKS FIELD_ADDR(fields_mbuf,3)
#define FLD_MB_MSIZE FIELD_ADDR(fields_mbuf,4)
#define FLD_MB_MALIVE FIELD_ADDR(fields_mbuf,5)
#define FLD_MB_MLWM FIELD_ADDR(fields_mbuf,6)
#define FLD_MB_MHWM FIELD_ADDR(fields_mbuf,7)
#define FLD_MB_MCWM FIELD_ADDR(fields_mbuf,8)
/* Define views */
field_def *view_mbuf[] = {
FLD_MB_IFACE,
FLD_MB_LLOCKS, FLD_MB_MSIZE, FLD_MB_MALIVE, FLD_MB_MLWM, FLD_MB_MHWM,
FLD_MB_MCWM, NULL
};
/* Define view managers */
struct view_manager mbuf_mgr = {
"Mbufs", select_mb, read_mb, NULL, print_header,
print_mb, keyboard_callback, NULL, NULL
};
field_view views_mb[] = {
{view_mbuf, "mbufs", '4', &mbuf_mgr},
{NULL, NULL, 0, NULL}
};
int
initmembufs(void)
{
struct if_rxring_info *ifr;
field_view *v;
int i, mib[4], npools;
struct kinfo_pool pool;
char pname[32];
size_t size;
sock = socket(AF_INET, SOCK_DGRAM, 0);
if (sock == -1) {
err(1, "socket()");
/* NOTREACHED */
}
/* set up the "System" interface */
interfaces = calloc(1, sizeof(*interfaces));
if (interfaces == NULL)
err(1, "calloc: interfaces");
ifr = calloc(MCLPOOLS, sizeof(*ifr));
if (ifr == NULL)
err(1, "calloc: system pools");
strlcpy(interfaces[0].name, "System", sizeof(interfaces[0].name));
interfaces[0].data.ifri_total = MCLPOOLS;
interfaces[0].data.ifri_entries = ifr;
num_ifs = 1;
/* go through all pools to identify mbuf and cluster pools */
mib[0] = CTL_KERN;
mib[1] = KERN_POOL;
mib[2] = KERN_POOL_NPOOLS;
size = sizeof(npools);
if (sysctl(mib, 3, &npools, &size, NULL, 0) < 0) {
err(1, "sysctl(KERN_POOL_NPOOLS)");
/* NOTREACHED */
}
for (i = 1; i <= npools; i++) {
mib[0] = CTL_KERN;
mib[1] = KERN_POOL;
mib[2] = KERN_POOL_NAME;
mib[3] = i;
size = sizeof(pname);
if (sysctl(mib, 4, &pname, &size, NULL, 0) < 0) {
continue;
}
if (strcmp(pname, "mbpl") == 0) {
mbpool_index = i;
continue;
}
if (strncmp(pname, "mcl", 3) != 0)
continue;
if (mclpool_count == MCLPOOLS) {
warnx("mbufs: Too many mcl* pools");
break;
}
mib[2] = KERN_POOL_POOL;
size = sizeof(pool);
if (sysctl(mib, 4, &pool, &size, NULL, 0) < 0) {
err(1, "sysctl(KERN_POOL_POOL, %d)", i);
/* NOTREACHED */
}
snprintf(ifr[mclpool_count].ifr_name,
sizeof(ifr[mclpool_count].ifr_name), "%dk",
pool.pr_size / 1024);
ifr[mclpool_count].ifr_size = pool.pr_size;
mclpools_index[mclpool_count++] = i;
}
if (mclpool_count != MCLPOOLS)
warnx("mbufs: Unable to read all %d mcl* pools", MCLPOOLS);
/* add view to the engine */
for (v = views_mb; v->name != NULL; v++)
add_view(v);
/* finally read it once */
read_mb();
return(1);
}
int
select_mb(void)
{
num_disp = 0;
return (0);
}
int
read_mb(void)
{
struct kinfo_pool pool;
struct ifaddrs *ifap, *ifa;
struct if_info *ifi;
struct if_rxring_info *ifr;
int mib[4];
int i, p, nif, ret = 1, rv;
u_int rings;
size_t size;
mib[0] = CTL_KERN;
mib[1] = KERN_NETLIVELOCKS;
size = sizeof(mcllivelocks_cur);
if (sysctl(mib, 2, &mcllivelocks_cur, &size, NULL, 0) < 0 &&
errno != EOPNOTSUPP) {
error("sysctl(KERN_NETLIVELOCKS)");
goto exit;
}
mcllivelocks_diff = mcllivelocks_cur - mcllivelocks;
mcllivelocks = mcllivelocks_cur;
num_disp = 0;
if (getifaddrs(&ifap)) {
error("getifaddrs: %s", strerror(errno));
return (1);
}
nif = 1;
for (ifa = ifap; ifa != NULL; ifa = ifa->ifa_next) {
if (ifa->ifa_addr == NULL ||
ifa->ifa_addr->sa_family != AF_LINK)
continue;
nif++;
}
if (num_ifs < nif) {
ifi = reallocarray(interfaces, nif, sizeof(*interfaces));
if (ifi == NULL) {
error("reallocarray: %d interfaces", nif);
goto exit;
}
interfaces = ifi;
while (num_ifs < nif)
memset(&interfaces[num_ifs++], 0, sizeof(*interfaces));
}
/* Fill in the "real" interfaces */
ifi = interfaces + 1;
for (ifa = ifap; ifa != NULL; ifa = ifa->ifa_next) {
if (ifa->ifa_addr == NULL ||
ifa->ifa_addr->sa_family != AF_LINK)
continue;
strlcpy(ifi->name, ifa->ifa_name, sizeof(ifi->name));
for (;;) {
struct ifreq ifreq;
rings = ifi->data.ifri_total;
memset(&ifreq, 0, sizeof(ifreq));
strlcpy(ifreq.ifr_name, ifa->ifa_name,
sizeof(ifreq.ifr_name));
ifreq.ifr_data = (caddr_t)&ifi->data;
rv = ioctl(sock, SIOCGIFRXR, &ifreq);
if (rv == -1) {
if (errno == ENOTTY) {
free(ifi->data.ifri_entries);
ifi->data.ifri_total = 0;
ifi->data.ifri_entries = NULL;
break;
}
error("ioctl(SIOCGIFRXR) %s", strerror(errno));
break;
}
if (rings >= ifi->data.ifri_total)
break;
ifr = reallocarray(ifi->data.ifri_entries,
ifi->data.ifri_total, sizeof(*ifr));
if (ifr == NULL) {
ifi->data.ifri_total = rings;
error("reallocarray: %u rings",
ifi->data.ifri_total);
goto exit;
}
ifi->data.ifri_entries = ifr;
}
ifi++;
}
/* Fill in the "System" entry from pools */
mib[0] = CTL_KERN;
mib[1] = KERN_POOL;
mib[2] = KERN_POOL_POOL;
mib[3] = mbpool_index;
size = sizeof(mbpool);
if (sysctl(mib, 4, &mbpool, &size, NULL, 0) < 0) {
error("sysctl(KERN_POOL_POOL, %d)", mib[3]);
goto exit;
}
for (i = 0; i < mclpool_count; i++) {
ifr = &interfaces[0].data.ifri_entries[i];
mib[3] = mclpools_index[i];
size = sizeof(pool);
if (sysctl(mib, 4, &pool, &size, NULL, 0) < 0) {
error("sysctl(KERN_POOL_POOL, %d)", mib[3]);
continue;
}
ifr->ifr_info.rxr_alive = pool.pr_nget - pool.pr_nput;
ifr->ifr_info.rxr_hwm = pool.pr_hiwat;
}
num_disp = 1;
ret = 0;
for (i = 0; i < num_ifs; i++) {
struct if_info *ifi = &interfaces[i];
int pnd = num_disp;
for (p = 0; p < ifi->data.ifri_total; p++) {
ifr = &ifi->data.ifri_entries[p];
if (ifr->ifr_info.rxr_alive == 0)
continue;
num_disp++;
}
if (i && pnd == num_disp)
num_disp++;
}
exit:
freeifaddrs(ifap);
return (ret);
}
void
print_mb(void)
{
int i, p, n, count = 0;
showmbuf(interfaces, -1, 1);
for (n = i = 0; i < num_ifs; i++) {
struct if_info *ifi = &interfaces[i];
int pcnt = count;
int showif = i;
if (maxprint > 0 && count >= maxprint)
return;
for (p = 0; p < ifi->data.ifri_total; p++) {
struct if_rxring_info *ifr = &ifi->data.ifri_entries[p];
if (ifr->ifr_info.rxr_alive == 0)
continue;
if (n++ >= dispstart) {
showmbuf(ifi, p, showif);
showif = 0;
count++;
}
}
if (i && pcnt == count) {
/* only print the first line */
if (n++ >= dispstart) {
showmbuf(ifi, -1, 1);
count++;
}
}
}
}
static void
showmbuf(struct if_info *ifi, int p, int showif)
{
if (showif)
print_fld_str(FLD_MB_IFACE, ifi->name);
if (p == -1 && ifi == interfaces) {
print_fld_uint(FLD_MB_LLOCKS, mcllivelocks_diff);
print_fld_size(FLD_MB_MSIZE, mbpool.pr_size);
print_fld_size(FLD_MB_MALIVE, mbpool.pr_nget - mbpool.pr_nput);
print_fld_size(FLD_MB_MHWM, mbpool.pr_hiwat);
}
if (p >= 0 && p < mclpool_count) {
struct if_rxring_info *ifr = &ifi->data.ifri_entries[p];
struct if_rxring *rxr= &ifr->ifr_info;
print_fld_uint(FLD_MB_MSIZE, ifr->ifr_size);
print_fld_uint(FLD_MB_MALIVE, rxr->rxr_alive);
if (rxr->rxr_lwm)
print_fld_size(FLD_MB_MLWM, rxr->rxr_lwm);
if (rxr->rxr_hwm)
print_fld_size(FLD_MB_MHWM, rxr->rxr_hwm);
if (rxr->rxr_cwm)
print_fld_size(FLD_MB_MCWM, rxr->rxr_cwm);
}
end_line();
}
|