Annotation of src/usr.bin/systat/if.c, Revision 1.16
1.16 ! deraadt 1: /* $OpenBSD: if.c,v 1.15 2009/06/26 06:39:47 jasper Exp $ */
1.1 markus 2: /*
3: * Copyright (c) 2004 Markus Friedl <markus@openbsd.org>
4: *
5: * Permission to use, copy, modify, and distribute this software for any
6: * purpose with or without fee is hereby granted, provided that the above
7: * copyright notice and this permission notice appear in all copies.
8: *
9: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13: * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14: * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15: * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
16: */
1.15 jasper 17:
1.1 markus 18: #include <sys/param.h>
19: #include <sys/types.h>
20: #include <sys/socket.h>
21: #include <sys/sysctl.h>
22: #include <net/if.h>
23: #include <net/if_dl.h>
24: #include <net/route.h>
1.13 deraadt 25: #include <sys/sockio.h>
1.15 jasper 26: #include <sys/ioctl.h>
1.1 markus 27:
28: #include <stdlib.h>
1.5 deraadt 29: #include <string.h>
1.15 jasper 30: #include <unistd.h>
1.1 markus 31:
32: #include "systat.h"
33:
34: static enum state { BOOT, TIME, RUN } state = TIME;
35:
36: struct ifstat {
37: char ifs_name[IFNAMSIZ]; /* interface name */
1.13 deraadt 38: char ifs_description[IFDESCRSIZE];
1.1 markus 39: struct ifcount ifs_cur;
40: struct ifcount ifs_old;
41: struct ifcount ifs_now;
42: } *ifstats;
43:
44: static int nifs = 0;
1.12 canacar 45: static int num_ifs = 0;
1.1 markus 46:
1.12 canacar 47: void print_if(void);
48: int read_if(void);
49: int select_if(void);
50: int if_keyboard_callback(int);
51:
1.16 ! deraadt 52: void fetchifstat(void);
1.12 canacar 53: static void showifstat(struct ifstat *);
54: static void showtotal(void);
55:
56:
57: /* Define fields */
58: field_def fields_if[] = {
59: {"IFACE", 8, 16, 1, FLD_ALIGN_LEFT, -1, 0, 0, 0},
1.13 deraadt 60: {"STATE", 4, 6, 1, FLD_ALIGN_LEFT, -1, 0, 0, 0},
1.12 canacar 61: {"IPKTS", 5, 8, 1, FLD_ALIGN_RIGHT, -1, 0, 0, 0},
62: {"IBYTES", 5, 8, 1, FLD_ALIGN_RIGHT, -1, 0, 0, 0},
63: {"IERRS", 5, 8, 1, FLD_ALIGN_RIGHT, -1, 0, 0, 0},
64: {"OPKTS", 5, 8, 1, FLD_ALIGN_RIGHT, -1, 0, 0, 0},
65: {"OBYTES", 5, 8, 1, FLD_ALIGN_RIGHT, -1, 0, 0, 0},
66: {"OERRS", 5, 8, 1, FLD_ALIGN_RIGHT, -1, 0, 0, 0},
67: {"COLLS", 5, 8, 1, FLD_ALIGN_RIGHT, -1, 0, 0, 0},
1.13 deraadt 68: {"DESC", 14, 64, 1, FLD_ALIGN_LEFT, -1, 0, 0, 0},
1.12 canacar 69: };
70:
71:
72: #define FIELD_ADDR(x) (&fields_if[x])
73:
74: #define FLD_IF_IFACE FIELD_ADDR(0)
75: #define FLD_IF_STATE FIELD_ADDR(1)
76: #define FLD_IF_IPKTS FIELD_ADDR(2)
77: #define FLD_IF_IBYTES FIELD_ADDR(3)
78: #define FLD_IF_IERRS FIELD_ADDR(4)
79: #define FLD_IF_OPKTS FIELD_ADDR(5)
80: #define FLD_IF_OBYTES FIELD_ADDR(6)
81: #define FLD_IF_OERRS FIELD_ADDR(7)
82: #define FLD_IF_COLLS FIELD_ADDR(8)
1.13 deraadt 83: #define FLD_IF_DESC FIELD_ADDR(9)
1.12 canacar 84:
85:
86: /* Define views */
87: field_def *view_if_0[] = {
1.13 deraadt 88: FLD_IF_IFACE, FLD_IF_STATE, FLD_IF_DESC, FLD_IF_IPKTS,
89: FLD_IF_IBYTES, FLD_IF_IERRS, FLD_IF_OPKTS, FLD_IF_OBYTES,
90: FLD_IF_OERRS, FLD_IF_COLLS, NULL
1.12 canacar 91: };
92:
93: /* Define view managers */
94:
95: struct view_manager ifstat_mgr = {
96: "Ifstat", select_if, read_if, NULL, print_header,
97: print_if, if_keyboard_callback, NULL, NULL
98: };
99:
100: field_view views_if[] = {
101: {view_if_0, "ifstat", '1', &ifstat_mgr},
102: {NULL, NULL, 0, NULL}
103: };
1.7 claudio 104:
1.1 markus 105:
106: int
107: initifstat(void)
108: {
1.12 canacar 109: field_view *v;
110: read_if();
111: for (v = views_if; v->name != NULL; v++)
112: add_view(v);
1.1 markus 113:
114: return(1);
115: }
116:
117: #define UPDATE(x, y) do { \
1.2 deraadt 118: ifs->ifs_now.x = ifm.y; \
1.1 markus 119: ifs->ifs_cur.x = ifs->ifs_now.x - ifs->ifs_old.x; \
1.4 dlg 120: if (state == TIME) {\
121: ifs->ifs_old.x = ifs->ifs_now.x; \
122: ifs->ifs_cur.x /= naptime; \
123: } \
1.1 markus 124: sum.x += ifs->ifs_cur.x; \
125: } while(0)
126:
127:
128: void
129: rt_getaddrinfo(struct sockaddr *sa, int addrs, struct sockaddr **info)
130: {
131: int i;
132:
133: for (i = 0; i < RTAX_MAX; i++) {
134: if (addrs & (1 << i)) {
135: info[i] = sa;
136: sa = (struct sockaddr *) ((char *)(sa) +
137: roundup(sa->sa_len, sizeof(long)));
138: } else
139: info[i] = NULL;
140: }
141: }
142:
1.12 canacar 143:
144:
145: int
146: select_if(void)
147: {
148: num_disp = num_ifs + 1;
149: return (0);
150: }
151:
152: int
153: read_if(void)
154: {
155: fetchifstat();
156: num_disp = num_ifs + 1;
157:
158: return 0;
159: }
160:
1.1 markus 161: void
1.12 canacar 162: print_if(void)
163: {
164: int n, i, count = 0;
165:
166: for (n = 0, i = 0; n < nifs; n++) {
167: if (ifstats[n].ifs_name[0] == '\0')
168: continue;
169: if (i++ < dispstart)
170: continue;
171: if (i == num_disp)
172: break;
173: showifstat(ifstats + n);
174: if (maxprint > 0 && ++count >= maxprint)
175: return;
176: }
177: showtotal();
178: }
179:
180:
1.16 ! deraadt 181: void
1.1 markus 182: fetchifstat(void)
183: {
184: struct ifstat *newstats, *ifs;
1.2 deraadt 185: struct if_msghdr ifm;
1.1 markus 186: struct sockaddr *info[RTAX_MAX];
187: struct sockaddr_dl *sdl;
188: char *buf, *next, *lim;
1.13 deraadt 189: static int s = -1;
1.5 deraadt 190: int mib[6];
1.1 markus 191: size_t need;
192:
193: mib[0] = CTL_NET;
194: mib[1] = AF_ROUTE;
195: mib[2] = 0;
196: mib[3] = 0;
197: mib[4] = NET_RT_IFLIST;
198: mib[5] = 0;
199:
200: if (sysctl(mib, 6, NULL, &need, NULL, 0) == -1)
201: return;
202: if ((buf = malloc(need)) == NULL)
203: return;
204: if (sysctl(mib, 6, buf, &need, NULL, 0) == -1) {
205: free(buf);
206: return;
207: }
208:
209: bzero(&sum, sizeof(sum));
1.12 canacar 210: num_ifs = 0;
1.1 markus 211:
212: lim = buf + need;
1.2 deraadt 213: for (next = buf; next < lim; next += ifm.ifm_msglen) {
214: bcopy(next, &ifm, sizeof ifm);
1.14 claudio 215: if (ifm.ifm_version != RTM_VERSION ||
216: ifm.ifm_type != RTM_IFINFO ||
217: !(ifm.ifm_addrs & RTA_IFP))
1.1 markus 218: continue;
1.2 deraadt 219: if (ifm.ifm_index >= nifs) {
1.12 canacar 220: if ((newstats = realloc(ifstats, (ifm.ifm_index + 4)
221: * sizeof(struct ifstat))) == NULL)
1.1 markus 222: continue;
223: ifstats = newstats;
1.2 deraadt 224: for (; nifs < ifm.ifm_index + 4; nifs++)
1.12 canacar 225: bzero(&ifstats[nifs], sizeof(*ifstats));
1.1 markus 226: }
1.2 deraadt 227: ifs = &ifstats[ifm.ifm_index];
1.1 markus 228: if (ifs->ifs_name[0] == '\0') {
229: bzero(&info, sizeof(info));
1.2 deraadt 230: rt_getaddrinfo(
231: (struct sockaddr *)((struct if_msghdr *)next + 1),
232: ifm.ifm_addrs, info);
1.13 deraadt 233: sdl = (struct sockaddr_dl *)info[RTAX_IFP];
234:
235: if (sdl && sdl->sdl_family == AF_LINK &&
236: sdl->sdl_nlen > 0) {
237: struct ifreq ifrdesc;
238: char ifdescr[IFDESCRSIZE];
239: int s;
240:
241: bcopy(sdl->sdl_data, ifs->ifs_name,
242: sdl->sdl_nlen);
243: ifs->ifs_name[sdl->sdl_nlen] = '\0';
244:
245: /* Get the interface description */
246: memset(&ifrdesc, 0, sizeof(ifrdesc));
247: strlcpy(ifrdesc.ifr_name, ifs->ifs_name,
248: sizeof(ifrdesc.ifr_name));
249: ifrdesc.ifr_data = (caddr_t)&ifdescr;
250:
251: s = socket(AF_INET, SOCK_DGRAM, 0);
252: if (s != -1) {
253: if (ioctl(s, SIOCGIFDESCR, &ifrdesc) == 0)
254: strlcpy(ifs->ifs_description,
255: ifrdesc.ifr_data,
256: sizeof(ifs->ifs_description));
257: close(s);
1.3 dlg 258: }
1.1 markus 259: }
260: if (ifs->ifs_name[0] == '\0')
261: continue;
262: }
1.12 canacar 263: num_ifs++;
1.1 markus 264: UPDATE(ifc_ip, ifm_data.ifi_ipackets);
265: UPDATE(ifc_ib, ifm_data.ifi_ibytes);
266: UPDATE(ifc_ie, ifm_data.ifi_ierrors);
267: UPDATE(ifc_op, ifm_data.ifi_opackets);
268: UPDATE(ifc_ob, ifm_data.ifi_obytes);
269: UPDATE(ifc_oe, ifm_data.ifi_oerrors);
270: UPDATE(ifc_co, ifm_data.ifi_collisions);
1.7 claudio 271: ifs->ifs_cur.ifc_flags = ifm.ifm_flags;
272: ifs->ifs_cur.ifc_state = ifm.ifm_data.ifi_link_state;
1.1 markus 273: }
274: free(buf);
275: }
276:
277:
1.12 canacar 278: static void
279: showifstat(struct ifstat *ifs)
1.1 markus 280: {
1.12 canacar 281: print_fld_str(FLD_IF_IFACE, ifs->ifs_name);
1.1 markus 282:
1.12 canacar 283: tb_start();
284: tbprintf("%s", ifs->ifs_cur.ifc_flags & IFF_UP ?
285: "up" : "dn");
1.7 claudio 286:
1.12 canacar 287: switch (ifs->ifs_cur.ifc_state) {
1.7 claudio 288: case LINK_STATE_UP:
1.8 reyk 289: case LINK_STATE_HALF_DUPLEX:
290: case LINK_STATE_FULL_DUPLEX:
1.12 canacar 291: tbprintf(":U");
292: break;
1.7 claudio 293: case LINK_STATE_DOWN:
1.12 canacar 294: tbprintf (":D");
295: break;
1.7 claudio 296: }
1.12 canacar 297:
298: print_fld_tb(FLD_IF_STATE);
1.13 deraadt 299:
300: print_fld_str(FLD_IF_DESC, ifs->ifs_description);
1.12 canacar 301:
302: print_fld_size(FLD_IF_IBYTES, ifs->ifs_cur.ifc_ib);
303: print_fld_size(FLD_IF_IPKTS, ifs->ifs_cur.ifc_ip);
304: print_fld_size(FLD_IF_IERRS, ifs->ifs_cur.ifc_ie);
305:
306: print_fld_size(FLD_IF_OBYTES, ifs->ifs_cur.ifc_ob);
307: print_fld_size(FLD_IF_OPKTS, ifs->ifs_cur.ifc_op);
308: print_fld_size(FLD_IF_OERRS, ifs->ifs_cur.ifc_oe);
309:
310: print_fld_size(FLD_IF_COLLS, ifs->ifs_cur.ifc_co);
311:
312: end_line();
1.7 claudio 313: }
1.6 deraadt 314:
1.12 canacar 315: static void
316: showtotal(void)
1.1 markus 317: {
1.12 canacar 318: print_fld_str(FLD_IF_IFACE, "Totals");
319:
320: print_fld_size(FLD_IF_IBYTES, sum.ifc_ib);
321: print_fld_size(FLD_IF_IPKTS, sum.ifc_ip);
322: print_fld_size(FLD_IF_IERRS, sum.ifc_ie);
323:
324: print_fld_size(FLD_IF_OBYTES, sum.ifc_ob);
325: print_fld_size(FLD_IF_OPKTS, sum.ifc_op);
326: print_fld_size(FLD_IF_OERRS, sum.ifc_oe);
327:
328: print_fld_size(FLD_IF_COLLS, sum.ifc_co);
329:
330: end_line();
1.1 markus 331:
332: }
333:
334: int
1.12 canacar 335: if_keyboard_callback(int ch)
1.1 markus 336: {
337: struct ifstat *ifs;
338:
1.12 canacar 339: switch (ch) {
340: case 'r':
341: for (ifs = ifstats; ifs < ifstats + nifs; ifs++)
342: ifs->ifs_old = ifs->ifs_now;
1.1 markus 343: state = RUN;
1.12 canacar 344: gotsig_alarm = 1;
345:
346: break;
347: case 'b':
1.1 markus 348: state = BOOT;
349: for (ifs = ifstats; ifs < ifstats + nifs; ifs++)
350: bzero(&ifs->ifs_old, sizeof(ifs->ifs_old));
1.12 canacar 351: gotsig_alarm = 1;
352: break;
353: case 't':
1.1 markus 354: state = TIME;
1.12 canacar 355: gotsig_alarm = 1;
356: break;
357: default:
358: return keyboard_callback(ch);
359: };
360:
361: return 1;
1.1 markus 362: }
1.12 canacar 363:
![[BACK]](/icons/back.gif){kind=icon}
Return to if.c CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [local] / src / usr.bin / systat