1*b31382fbSchristos /* $NetBSD: ifstat.c,v 1.4 2016/08/05 07:22:17 christos Exp $ */
26f3aa0fcSscole
3bd7662dcSscole /*
4bd7662dcSscole * Copyright (c) 2003, Trent Nelson, <trent@arpa.com>.
5bd7662dcSscole * All rights reserved.
6bd7662dcSscole *
7bd7662dcSscole * Redistribution and use in source and binary forms, with or without
8bd7662dcSscole * modification, are permitted provided that the following conditions
9bd7662dcSscole * are met:
10bd7662dcSscole * 1. Redistributions of source code must retain the above copyright
11bd7662dcSscole * notice, this list of conditions and the following disclaimer.
12bd7662dcSscole * 2. Redistributions in binary form must reproduce the above copyright
13bd7662dcSscole * notice, this list of conditions and the following disclaimer in the
14bd7662dcSscole * documentation and/or other materials provided with the distribution.
15bd7662dcSscole * 3. The name of the author may not be used to endorse or promote products
16bd7662dcSscole * derived from this software without specific prior written permission.
17bd7662dcSscole *
18bd7662dcSscole * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
19bd7662dcSscole * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20bd7662dcSscole * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21bd7662dcSscole * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
22bd7662dcSscole * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23bd7662dcSscole * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24bd7662dcSscole * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTIFSTAT_ERRUPTION)
25bd7662dcSscole * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26bd7662dcSscole * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27bd7662dcSscole * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28bd7662dcSscole * SUCH DAMAGE.
29bd7662dcSscole *
30bd7662dcSscole * $FreeBSD: releng/10.1/usr.bin/systat/ifstat.c 247037 2013-02-20 14:19:09Z melifaro $
31bd7662dcSscole */
32bd7662dcSscole
33bd7662dcSscole #include <sys/cdefs.h>
34bd7662dcSscole #ifndef lint
35*b31382fbSchristos __RCSID("$NetBSD: ifstat.c,v 1.4 2016/08/05 07:22:17 christos Exp $");
36bd7662dcSscole #endif /* not lint */
37bd7662dcSscole
38bd7662dcSscole #include <sys/types.h>
39bd7662dcSscole #include <sys/socket.h>
40bd7662dcSscole #include <sys/sysctl.h>
41bd7662dcSscole #include <sys/time.h>
42bd7662dcSscole #include <net/if.h>
43bd7662dcSscole
44bd7662dcSscole #include <ifaddrs.h>
45bd7662dcSscole #include <stdlib.h>
46bd7662dcSscole #include <string.h>
47bd7662dcSscole #include <err.h>
48bd7662dcSscole #include <errno.h>
49bd7662dcSscole #include <fnmatch.h>
50bd7662dcSscole
51bd7662dcSscole #include "systat.h"
52bd7662dcSscole #include "extern.h"
53bd7662dcSscole #include "convtbl.h"
54bd7662dcSscole
55bd7662dcSscole /* Column numbers */
56bd7662dcSscole
57bd7662dcSscole #define C1 0 /* 0-19 */
58bd7662dcSscole #define C2 20 /* 20-39 */
59bd7662dcSscole #define C3 40 /* 40-59 */
60bd7662dcSscole #define C4 60 /* 60-80 */
61bd7662dcSscole #define C5 80 /* Used for label positioning. */
62bd7662dcSscole
63bd7662dcSscole static const int col2 = C2;
64bd7662dcSscole static const int col3 = C3;
65bd7662dcSscole static const int col4 = C4;
66bd7662dcSscole
67bd7662dcSscole SLIST_HEAD(, if_stat) curlist;
68bd7662dcSscole
69bd7662dcSscole struct if_stat {
70bd7662dcSscole SLIST_ENTRY(if_stat) link;
71bd7662dcSscole char if_name[IF_NAMESIZE];
72bd7662dcSscole struct ifdatareq if_mib;
73bd7662dcSscole struct timeval tv;
74bd7662dcSscole struct timeval tv_lastchanged;
75bd7662dcSscole u_long if_in_curtraffic;
76bd7662dcSscole u_long if_out_curtraffic;
77bd7662dcSscole u_long if_in_traffic_peak;
78bd7662dcSscole u_long if_out_traffic_peak;
79bd7662dcSscole u_long if_in_curpps;
80bd7662dcSscole u_long if_out_curpps;
81bd7662dcSscole u_long if_in_pps_peak;
82bd7662dcSscole u_long if_out_pps_peak;
83bd7662dcSscole u_int if_row; /* Index into ifmib sysctl */
84bd7662dcSscole u_int if_ypos; /* 0 if not being displayed */
85bd7662dcSscole u_int display;
86bd7662dcSscole u_int match;
87bd7662dcSscole };
88bd7662dcSscole
89bd7662dcSscole extern int curscale;
90bd7662dcSscole extern char *matchline;
91bd7662dcSscole extern int showpps;
92bd7662dcSscole extern int needsort;
93bd7662dcSscole
94bd7662dcSscole static int needclear = 0;
95bd7662dcSscole
96bd7662dcSscole static void right_align_string(struct if_stat *);
97bd7662dcSscole static void getifmibdata(const int, struct ifdatareq *);
98bd7662dcSscole static void sort_interface_list(void);
99bd7662dcSscole static u_int getifnum(void);
100bd7662dcSscole
101bd7662dcSscole #define IFSTAT_ERR(n, s) do { \
102bd7662dcSscole putchar('\014'); \
103bd7662dcSscole closeifstat(wnd); \
104bd7662dcSscole err((n), (s)); \
105bd7662dcSscole } while (0)
106bd7662dcSscole
107bd7662dcSscole #define TOPLINE 5
108bd7662dcSscole #define TOPLABEL \
109bd7662dcSscole " Interface Traffic Peak Total"
110bd7662dcSscole
111bd7662dcSscole #define STARTING_ROW (TOPLINE + 1)
112bd7662dcSscole #define ROW_SPACING (3)
113bd7662dcSscole
114bd7662dcSscole #define IN_col2 (showpps ? ifp->if_in_curpps : ifp->if_in_curtraffic)
115bd7662dcSscole #define OUT_col2 (showpps ? ifp->if_out_curpps : ifp->if_out_curtraffic)
116bd7662dcSscole #define IN_col3 (showpps ? \
117bd7662dcSscole ifp->if_in_pps_peak : ifp->if_in_traffic_peak)
118bd7662dcSscole #define OUT_col3 (showpps ? \
119bd7662dcSscole ifp->if_out_pps_peak : ifp->if_out_traffic_peak)
120bd7662dcSscole #define IN_col4 (showpps ? \
121bd7662dcSscole ifp->if_mib.ifdr_data.ifi_ipackets : ifp->if_mib.ifdr_data.ifi_ibytes)
122bd7662dcSscole #define OUT_col4 (showpps ? \
123bd7662dcSscole ifp->if_mib.ifdr_data.ifi_opackets : ifp->if_mib.ifdr_data.ifi_obytes)
124bd7662dcSscole
125bd7662dcSscole #define EMPTY_COLUMN " "
126bd7662dcSscole #define CLEAR_COLUMN(y, x) mvprintw((y), (x), "%20s", EMPTY_COLUMN);
127bd7662dcSscole
128bd7662dcSscole #define DOPUTRATE(c, r, d) do { \
129bd7662dcSscole CLEAR_COLUMN(r, c); \
130bd7662dcSscole if (showpps) { \
131bd7662dcSscole mvprintw(r, (c), "%10.3f %cp%s ", \
132bd7662dcSscole convert(d##_##c, curscale), \
133bd7662dcSscole *get_string(d##_##c, curscale), \
134bd7662dcSscole "/s"); \
135bd7662dcSscole } \
136bd7662dcSscole else { \
137bd7662dcSscole mvprintw(r, (c), "%10.3f %s%s ", \
138bd7662dcSscole convert(d##_##c, curscale), \
139bd7662dcSscole get_string(d##_##c, curscale), \
140bd7662dcSscole "/s"); \
141bd7662dcSscole } \
142bd7662dcSscole } while (0)
143bd7662dcSscole
144bd7662dcSscole #define DOPUTTOTAL(c, r, d) do { \
145bd7662dcSscole CLEAR_COLUMN((r), (c)); \
146bd7662dcSscole if (showpps) { \
147bd7662dcSscole mvprintw((r), (c), "%12.3f %cp ", \
148bd7662dcSscole convert(d##_##c, SC_AUTO), \
149bd7662dcSscole *get_string(d##_##c, SC_AUTO)); \
150bd7662dcSscole } \
151bd7662dcSscole else { \
152bd7662dcSscole mvprintw((r), (c), "%12.3f %s ", \
153bd7662dcSscole convert(d##_##c, SC_AUTO), \
154bd7662dcSscole get_string(d##_##c, SC_AUTO)); \
155bd7662dcSscole } \
156bd7662dcSscole } while (0)
157bd7662dcSscole
158bd7662dcSscole #define PUTRATE(c, r) do { \
159bd7662dcSscole DOPUTRATE(c, (r), IN); \
160bd7662dcSscole DOPUTRATE(c, (r)+1, OUT); \
161bd7662dcSscole } while (0)
162bd7662dcSscole
163bd7662dcSscole #define PUTTOTAL(c, r) do { \
164bd7662dcSscole DOPUTTOTAL(c, (r), IN); \
165bd7662dcSscole DOPUTTOTAL(c, (r)+1, OUT); \
166bd7662dcSscole } while (0)
167bd7662dcSscole
168bd7662dcSscole #define PUTNAME(p) do { \
169bd7662dcSscole mvprintw(p->if_ypos, 0, "%s", p->if_name); \
170bd7662dcSscole mvprintw(p->if_ypos, col2-3, "%s", (const char *)"in"); \
171bd7662dcSscole mvprintw(p->if_ypos+1, col2-3, "%s", (const char *)"out"); \
172bd7662dcSscole } while (0)
173bd7662dcSscole
174bd7662dcSscole WINDOW *
openifstat(void)175bd7662dcSscole openifstat(void)
176bd7662dcSscole {
177bd7662dcSscole return (subwin(stdscr, -1, 0, 5, 0));
178bd7662dcSscole }
179bd7662dcSscole
180bd7662dcSscole void
closeifstat(WINDOW * w)181bd7662dcSscole closeifstat(WINDOW *w)
182bd7662dcSscole {
183bd7662dcSscole struct if_stat *node = NULL;
184bd7662dcSscole
185bd7662dcSscole while (!SLIST_EMPTY(&curlist)) {
186bd7662dcSscole node = SLIST_FIRST(&curlist);
187bd7662dcSscole SLIST_REMOVE_HEAD(&curlist, link);
188bd7662dcSscole free(node);
189bd7662dcSscole }
190bd7662dcSscole
191bd7662dcSscole if (w != NULL) {
192bd7662dcSscole wclear(w);
193bd7662dcSscole wrefresh(w);
194bd7662dcSscole delwin(w);
195bd7662dcSscole }
196bd7662dcSscole
197bd7662dcSscole return;
198bd7662dcSscole }
199bd7662dcSscole
200bd7662dcSscole void
labelifstat(void)201bd7662dcSscole labelifstat(void)
202bd7662dcSscole {
203bd7662dcSscole
204bd7662dcSscole wmove(wnd, TOPLINE, 0);
205bd7662dcSscole wclrtoeol(wnd);
206bd7662dcSscole mvprintw(TOPLINE, 0, "%s", TOPLABEL);
207bd7662dcSscole
208bd7662dcSscole return;
209bd7662dcSscole }
210bd7662dcSscole
211bd7662dcSscole void
showifstat(void)212bd7662dcSscole showifstat(void)
213bd7662dcSscole {
214bd7662dcSscole struct if_stat *ifp = NULL;
215bd7662dcSscole
216bd7662dcSscole SLIST_FOREACH(ifp, &curlist, link) {
217bd7662dcSscole if (ifp->display == 0 || (ifp->match == 0) ||
218bd7662dcSscole ifp->if_ypos > (u_int)(LINES - 3 - 1))
219bd7662dcSscole continue;
220bd7662dcSscole PUTNAME(ifp);
221bd7662dcSscole PUTRATE(col2, ifp->if_ypos);
222bd7662dcSscole PUTRATE(col3, ifp->if_ypos);
223bd7662dcSscole PUTTOTAL(col4, ifp->if_ypos);
224bd7662dcSscole }
225bd7662dcSscole
226bd7662dcSscole return;
227bd7662dcSscole }
228bd7662dcSscole
229bd7662dcSscole int
initifstat(void)230bd7662dcSscole initifstat(void)
231bd7662dcSscole {
232bd7662dcSscole struct if_stat *p = NULL;
233bd7662dcSscole u_int n = 0, i = 0;
234bd7662dcSscole
235bd7662dcSscole n = getifnum();
236bd7662dcSscole if (n <= 0)
237bd7662dcSscole return (-1);
238bd7662dcSscole
239bd7662dcSscole SLIST_INIT(&curlist);
240bd7662dcSscole
241bd7662dcSscole for (i = 0; i < n; i++) {
242bd7662dcSscole p = (struct if_stat *)calloc(1, sizeof(struct if_stat));
243bd7662dcSscole if (p == NULL)
244bd7662dcSscole IFSTAT_ERR(1, "out of memory");
245bd7662dcSscole SLIST_INSERT_HEAD(&curlist, p, link);
246bd7662dcSscole p->if_row = i+1;
247bd7662dcSscole getifmibdata(p->if_row, &p->if_mib);
248bd7662dcSscole right_align_string(p);
249bd7662dcSscole p->match = 1;
250bd7662dcSscole
251bd7662dcSscole /*
252bd7662dcSscole * Initially, we only display interfaces that have
253bd7662dcSscole * received some traffic.
254bd7662dcSscole */
255bd7662dcSscole if (p->if_mib.ifdr_data.ifi_ibytes != 0)
256bd7662dcSscole p->display = 1;
257bd7662dcSscole }
258bd7662dcSscole
259bd7662dcSscole sort_interface_list();
260bd7662dcSscole
261bd7662dcSscole return (1);
262bd7662dcSscole }
263bd7662dcSscole
264bd7662dcSscole void
fetchifstat(void)265bd7662dcSscole fetchifstat(void)
266bd7662dcSscole {
267bd7662dcSscole struct if_stat *ifp = NULL;
268bd7662dcSscole struct timeval tv, new_tv, old_tv;
269bd7662dcSscole double elapsed = 0.0;
270bd7662dcSscole u_int new_inb, new_outb, old_inb, old_outb = 0;
271bd7662dcSscole u_int new_inp, new_outp, old_inp, old_outp = 0;
272bd7662dcSscole
273bd7662dcSscole SLIST_FOREACH(ifp, &curlist, link) {
274bd7662dcSscole /*
275bd7662dcSscole * Grab a copy of the old input/output values before we
276bd7662dcSscole * call getifmibdata().
277bd7662dcSscole */
278bd7662dcSscole old_inb = ifp->if_mib.ifdr_data.ifi_ibytes;
279bd7662dcSscole old_outb = ifp->if_mib.ifdr_data.ifi_obytes;
280bd7662dcSscole old_inp = ifp->if_mib.ifdr_data.ifi_ipackets;
281bd7662dcSscole old_outp = ifp->if_mib.ifdr_data.ifi_opackets;
282bd7662dcSscole TIMESPEC_TO_TIMEVAL(&ifp->tv_lastchanged, &ifp->if_mib.ifdr_data.ifi_lastchange);
283bd7662dcSscole
284bd7662dcSscole (void)gettimeofday(&new_tv, NULL);
285bd7662dcSscole (void)getifmibdata(ifp->if_row, &ifp->if_mib);
286bd7662dcSscole
287bd7662dcSscole new_inb = ifp->if_mib.ifdr_data.ifi_ibytes;
288bd7662dcSscole new_outb = ifp->if_mib.ifdr_data.ifi_obytes;
289bd7662dcSscole new_inp = ifp->if_mib.ifdr_data.ifi_ipackets;
290bd7662dcSscole new_outp = ifp->if_mib.ifdr_data.ifi_opackets;
291bd7662dcSscole
292bd7662dcSscole /* Display interface if it's received some traffic. */
293bd7662dcSscole if (new_inb > 0 && old_inb == 0) {
294bd7662dcSscole ifp->display = 1;
295bd7662dcSscole needsort = 1;
296bd7662dcSscole }
297bd7662dcSscole
298bd7662dcSscole /*
299bd7662dcSscole * The rest is pretty trivial. Calculate the new values
300bd7662dcSscole * for our current traffic rates, and while we're there,
301bd7662dcSscole * see if we have new peak rates.
302bd7662dcSscole */
303bd7662dcSscole old_tv = ifp->tv;
304bd7662dcSscole timersub(&new_tv, &old_tv, &tv);
305bd7662dcSscole elapsed = tv.tv_sec + (tv.tv_usec * 1e-6);
306bd7662dcSscole
307bd7662dcSscole ifp->if_in_curtraffic = new_inb - old_inb;
308bd7662dcSscole ifp->if_out_curtraffic = new_outb - old_outb;
309bd7662dcSscole
310bd7662dcSscole ifp->if_in_curpps = new_inp - old_inp;
311bd7662dcSscole ifp->if_out_curpps = new_outp - old_outp;
312bd7662dcSscole
313bd7662dcSscole /*
314bd7662dcSscole * Rather than divide by the time specified on the comm-
315bd7662dcSscole * and line, we divide by ``elapsed'' as this is likely
316bd7662dcSscole * to be more accurate.
317bd7662dcSscole */
318bd7662dcSscole ifp->if_in_curtraffic /= elapsed;
319bd7662dcSscole ifp->if_out_curtraffic /= elapsed;
320bd7662dcSscole ifp->if_in_curpps /= elapsed;
321bd7662dcSscole ifp->if_out_curpps /= elapsed;
322bd7662dcSscole
323bd7662dcSscole if (ifp->if_in_curtraffic > ifp->if_in_traffic_peak)
324bd7662dcSscole ifp->if_in_traffic_peak = ifp->if_in_curtraffic;
325bd7662dcSscole
326bd7662dcSscole if (ifp->if_out_curtraffic > ifp->if_out_traffic_peak)
327bd7662dcSscole ifp->if_out_traffic_peak = ifp->if_out_curtraffic;
328bd7662dcSscole
329bd7662dcSscole if (ifp->if_in_curpps > ifp->if_in_pps_peak)
330bd7662dcSscole ifp->if_in_pps_peak = ifp->if_in_curpps;
331bd7662dcSscole
332bd7662dcSscole if (ifp->if_out_curpps > ifp->if_out_pps_peak)
333bd7662dcSscole ifp->if_out_pps_peak = ifp->if_out_curpps;
334bd7662dcSscole
335bd7662dcSscole ifp->tv.tv_sec = new_tv.tv_sec;
336bd7662dcSscole ifp->tv.tv_usec = new_tv.tv_usec;
337bd7662dcSscole
338bd7662dcSscole }
339bd7662dcSscole
340bd7662dcSscole if (needsort)
341bd7662dcSscole sort_interface_list();
342bd7662dcSscole
343bd7662dcSscole return;
344bd7662dcSscole }
345bd7662dcSscole
346bd7662dcSscole /*
347bd7662dcSscole * We want to right justify our interface names against the first column
348bd7662dcSscole * (first sixteen or so characters), so we need to do some alignment.
349bd7662dcSscole */
350bd7662dcSscole static void
right_align_string(struct if_stat * ifp)351bd7662dcSscole right_align_string(struct if_stat *ifp)
352bd7662dcSscole {
353ccf7078dSjakllsch if (ifp == NULL || ifp->if_mib.ifdr_name[0] == '\0')
354bd7662dcSscole return;
355bd7662dcSscole
356*b31382fbSchristos snprintf(ifp->if_name, IF_NAMESIZE, "%*s", IF_NAMESIZE - 1,
357*b31382fbSchristos ifp->if_mib.ifdr_name);
358bd7662dcSscole }
359bd7662dcSscole
360bd7662dcSscole static int
check_match(const char * ifname)361bd7662dcSscole check_match(const char *ifname)
362bd7662dcSscole {
363bd7662dcSscole char *p = matchline, *c, t;
364bd7662dcSscole int match = 0, mlen;
365bd7662dcSscole
366bd7662dcSscole if (matchline == NULL)
367bd7662dcSscole return (0);
368bd7662dcSscole
369bd7662dcSscole /* Strip leading whitespaces */
370bd7662dcSscole while (*p == ' ')
371bd7662dcSscole p ++;
372bd7662dcSscole
373bd7662dcSscole c = p;
374bd7662dcSscole while ((mlen = strcspn(c, " ;,")) != 0) {
375bd7662dcSscole p = c + mlen;
376bd7662dcSscole t = *p;
377bd7662dcSscole if (p - c > 0) {
378bd7662dcSscole *p = '\0';
379bd7662dcSscole if (fnmatch(c, ifname, FNM_CASEFOLD) == 0) {
380bd7662dcSscole *p = t;
381bd7662dcSscole return (1);
382bd7662dcSscole }
383bd7662dcSscole *p = t;
384bd7662dcSscole c = p + strspn(p, " ;,");
385bd7662dcSscole }
386bd7662dcSscole else {
387bd7662dcSscole c = p + strspn(p, " ;,");
388bd7662dcSscole }
389bd7662dcSscole }
390bd7662dcSscole
391bd7662dcSscole return (match);
392bd7662dcSscole }
393bd7662dcSscole
394bd7662dcSscole /*
395bd7662dcSscole * This function iterates through our list of interfaces, identifying
396bd7662dcSscole * those that are to be displayed (ifp->display = 1). For each interf-
397bd7662dcSscole * rface that we're displaying, we generate an appropriate position for
398bd7662dcSscole * it on the screen (ifp->if_ypos).
399bd7662dcSscole *
400bd7662dcSscole * This function is called any time a change is made to an interface's
401bd7662dcSscole * ``display'' state.
402bd7662dcSscole */
403bd7662dcSscole void
sort_interface_list(void)404bd7662dcSscole sort_interface_list(void)
405bd7662dcSscole {
406bd7662dcSscole struct if_stat *ifp = NULL;
407bd7662dcSscole u_int y = STARTING_ROW;
408bd7662dcSscole
409bd7662dcSscole SLIST_FOREACH(ifp, &curlist, link) {
410bd7662dcSscole if (matchline && !check_match(ifp->if_mib.ifdr_name))
411bd7662dcSscole ifp->match = 0;
412bd7662dcSscole else
413bd7662dcSscole ifp->match = 1;
414bd7662dcSscole if (ifp->display && ifp->match) {
415bd7662dcSscole ifp->if_ypos = y;
416bd7662dcSscole y += ROW_SPACING;
417bd7662dcSscole }
418bd7662dcSscole }
419bd7662dcSscole
420bd7662dcSscole needsort = 0;
421bd7662dcSscole needclear = 1;
422bd7662dcSscole }
423bd7662dcSscole
424bd7662dcSscole static
425bd7662dcSscole unsigned int
getifnum(void)426bd7662dcSscole getifnum(void)
427bd7662dcSscole {
428bd7662dcSscole struct ifaddrs *ifaddrs = NULL;
429bd7662dcSscole struct ifaddrs *ifa = NULL;
430bd7662dcSscole int num = 0;
431bd7662dcSscole
432bd7662dcSscole if (getifaddrs(&ifaddrs) == 0) {
433bd7662dcSscole for (ifa = ifaddrs; ifa != NULL; ifa = ifa->ifa_next) {
434bd7662dcSscole if (ifa->ifa_addr &&
435bd7662dcSscole ifa->ifa_addr->sa_family == AF_LINK)
436bd7662dcSscole num++;
437bd7662dcSscole }
438bd7662dcSscole
439bd7662dcSscole freeifaddrs(ifaddrs);
440bd7662dcSscole }
441bd7662dcSscole
442bd7662dcSscole return num;
443bd7662dcSscole }
444bd7662dcSscole
445bd7662dcSscole static void
getifmibdata(int row,struct ifdatareq * data)446bd7662dcSscole getifmibdata(int row, struct ifdatareq *data)
447bd7662dcSscole {
448bd7662dcSscole struct ifaddrs *ifaddrs = NULL;
449bd7662dcSscole struct ifaddrs *ifa = NULL;
450bd7662dcSscole int found = 0;
451bd7662dcSscole int num = 0;
452bd7662dcSscole
453bd7662dcSscole if (getifaddrs(&ifaddrs) != 0) {
454bd7662dcSscole IFSTAT_ERR(2, "getifmibdata() error getting interface data");
455bd7662dcSscole return;
456bd7662dcSscole }
457bd7662dcSscole
458bd7662dcSscole for (ifa = ifaddrs; ifa != NULL; ifa = ifa->ifa_next) {
459bd7662dcSscole if (ifa->ifa_addr &&
460bd7662dcSscole ifa->ifa_addr->sa_family == AF_LINK) {
461bd7662dcSscole num++;
462bd7662dcSscole
463bd7662dcSscole /*
464bd7662dcSscole * expecting rows to start with 1 not 0,
465bd7662dcSscole * see freebsd "man ifmib"
466bd7662dcSscole */
467bd7662dcSscole if (num == row) {
468bd7662dcSscole found = 1;
469bd7662dcSscole data->ifdr_data = *(struct if_data *)ifa->ifa_data;
470bd7662dcSscole strncpy(data->ifdr_name, ifa->ifa_name, IF_NAMESIZE);
471bd7662dcSscole break;
472bd7662dcSscole }
473bd7662dcSscole }
474bd7662dcSscole }
475bd7662dcSscole
476bd7662dcSscole freeifaddrs(ifaddrs);
477bd7662dcSscole
478bd7662dcSscole if (!found) {
479bd7662dcSscole IFSTAT_ERR(2, "getifmibdata() error finding row");
480bd7662dcSscole }
481bd7662dcSscole }
482bd7662dcSscole
483bd7662dcSscole int
cmdifstat(const char * cmd,const char * args)484bd7662dcSscole cmdifstat(const char *cmd, const char *args)
485bd7662dcSscole {
486bd7662dcSscole int retval = 0;
487bd7662dcSscole
488bd7662dcSscole retval = ifcmd(cmd, args);
489bd7662dcSscole /* ifcmd() returns 1 on success */
490bd7662dcSscole if (retval == 1) {
491bd7662dcSscole showifstat();
492bd7662dcSscole refresh();
493bd7662dcSscole if (needclear) {
494bd7662dcSscole werase(wnd);
495bd7662dcSscole labelifstat();
496bd7662dcSscole needclear = 0;
497bd7662dcSscole }
498bd7662dcSscole }
499bd7662dcSscole
500bd7662dcSscole return (retval);
501bd7662dcSscole }
502bd7662dcSscole
503bd7662dcSscole void
ifstat_scale(char * args)504bd7662dcSscole ifstat_scale(char* args)
505bd7662dcSscole {
506bd7662dcSscole cmdifstat("scale", args ? args : "");
507bd7662dcSscole }
508bd7662dcSscole
509bd7662dcSscole void
ifstat_pps(char * args)510bd7662dcSscole ifstat_pps(char* args)
511bd7662dcSscole {
512bd7662dcSscole cmdifstat("pps", "");
513bd7662dcSscole }
514bd7662dcSscole
515bd7662dcSscole void
ifstat_match(char * args)516bd7662dcSscole ifstat_match(char* args)
517bd7662dcSscole {
518bd7662dcSscole cmdifstat("match", args ? args : "");
519bd7662dcSscole
520bd7662dcSscole /*
521bd7662dcSscole * force erase after match command because it is possible for
522bd7662dcSscole * another command to be sent in the interval before the window
523bd7662dcSscole * finishes redrawing completely. That stale data remains in window
524bd7662dcSscole * and never gets overwritten because there are fewer interfaces
525bd7662dcSscole * being drawn on screen. Only an issue for match command because
526bd7662dcSscole * pps and scale don't change the number of interfaces being drawn.
527bd7662dcSscole */
528bd7662dcSscole werase(wnd);
529bd7662dcSscole labelifstat();
530bd7662dcSscole }
531