xref: /freebsd/sbin/etherswitchcfg/etherswitchcfg.c (revision 74d9553e43cfafc29448d0bb836916aa21dea0de)
1 /*-
2  * Copyright (c) 2011-2012 Stefan Bethke.
3  * 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  *
14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24  * SUCH DAMAGE.
25  *
26  * $FreeBSD$
27  */
28 
29 #include <sys/cdefs.h>
30 __FBSDID("$FreeBSD$");
31 
32 #include <ctype.h>
33 #include <err.h>
34 #include <errno.h>
35 #include <fcntl.h>
36 #include <stdio.h>
37 #include <stdlib.h>
38 #include <string.h>
39 #include <sysexits.h>
40 #include <unistd.h>
41 #include <sys/types.h>
42 #include <sys/ioctl.h>
43 #include <net/if.h>
44 #include <net/if_media.h>
45 #include <dev/etherswitch/etherswitch.h>
46 
47 int	get_media_subtype(int, const char *);
48 int	get_media_mode(int, const char *);
49 int	get_media_options(int, const char *);
50 int	lookup_media_word(struct ifmedia_description *, const char *);
51 void    print_media_word(int, int);
52 void    print_media_word_ifconfig(int);
53 
54 /* some constants */
55 #define IEEE802DOT1Q_VID_MAX	4094
56 #define IFMEDIAREQ_NULISTENTRIES	256
57 
58 enum cmdmode {
59 	MODE_NONE = 0,
60 	MODE_PORT,
61 	MODE_CONFIG,
62 	MODE_VLANGROUP,
63 	MODE_REGISTER,
64 	MODE_PHYREG
65 };
66 
67 struct cfg {
68 	int					fd;
69 	int					verbose;
70 	int					mediatypes;
71 	const char			*controlfile;
72 	etherswitch_conf_t	conf;
73 	etherswitch_info_t	info;
74 	enum cmdmode		mode;
75 	int					unit;
76 };
77 
78 struct cmds {
79 	enum cmdmode	mode;
80 	const char		*name;
81 	int				args;
82 	void 			(*f)(struct cfg *, char *argv[]);
83 };
84 static struct cmds cmds[];
85 
86 /* Must match the ETHERSWITCH_PORT_LED_* enum order */
87 static const char *ledstyles[] = { "default", "on", "off", "blink", NULL };
88 
89 /*
90  * Print a value a la the %b format of the kernel's printf.
91  * Stolen from ifconfig.c.
92  */
93 static void
94 printb(const char *s, unsigned v, const char *bits)
95 {
96 	int i, any = 0;
97 	char c;
98 
99 	if (bits && *bits == 8)
100 		printf("%s=%o", s, v);
101 	else
102 		printf("%s=%x", s, v);
103 	bits++;
104 	if (bits) {
105 		putchar('<');
106 		while ((i = *bits++) != '\0') {
107 			if (v & (1 << (i-1))) {
108 				if (any)
109 					putchar(',');
110 				any = 1;
111 				for (; (c = *bits) > 32; bits++)
112 					putchar(c);
113 			} else
114 				for (; *bits > 32; bits++)
115 					;
116 		}
117 		putchar('>');
118 	}
119 }
120 
121 static int
122 read_register(struct cfg *cfg, int r)
123 {
124 	struct etherswitch_reg er;
125 
126 	er.reg = r;
127 	if (ioctl(cfg->fd, IOETHERSWITCHGETREG, &er) != 0)
128 		err(EX_OSERR, "ioctl(IOETHERSWITCHGETREG)");
129 	return (er.val);
130 }
131 
132 static void
133 write_register(struct cfg *cfg, int r, int v)
134 {
135 	struct etherswitch_reg er;
136 
137 	er.reg = r;
138 	er.val = v;
139 	if (ioctl(cfg->fd, IOETHERSWITCHSETREG, &er) != 0)
140 		err(EX_OSERR, "ioctl(IOETHERSWITCHSETREG)");
141 }
142 
143 static int
144 read_phyregister(struct cfg *cfg, int phy, int reg)
145 {
146 	struct etherswitch_phyreg er;
147 
148 	er.phy = phy;
149 	er.reg = reg;
150 	if (ioctl(cfg->fd, IOETHERSWITCHGETPHYREG, &er) != 0)
151 		err(EX_OSERR, "ioctl(IOETHERSWITCHGETPHYREG)");
152 	return (er.val);
153 }
154 
155 static void
156 write_phyregister(struct cfg *cfg, int phy, int reg, int val)
157 {
158 	struct etherswitch_phyreg er;
159 
160 	er.phy = phy;
161 	er.reg = reg;
162 	er.val = val;
163 	if (ioctl(cfg->fd, IOETHERSWITCHSETPHYREG, &er) != 0)
164 		err(EX_OSERR, "ioctl(IOETHERSWITCHSETPHYREG)");
165 }
166 
167 static void
168 set_port_vid(struct cfg *cfg, char *argv[])
169 {
170 	int v;
171 	etherswitch_port_t p;
172 
173 	v = strtol(argv[1], NULL, 0);
174 	if (v < 0 || v > IEEE802DOT1Q_VID_MAX)
175 		errx(EX_USAGE, "pvid must be between 0 and %d",
176 		    IEEE802DOT1Q_VID_MAX);
177 	bzero(&p, sizeof(p));
178 	p.es_port = cfg->unit;
179 	if (ioctl(cfg->fd, IOETHERSWITCHGETPORT, &p) != 0)
180 		err(EX_OSERR, "ioctl(IOETHERSWITCHGETPORT)");
181 	p.es_pvid = v;
182 	if (ioctl(cfg->fd, IOETHERSWITCHSETPORT, &p) != 0)
183 		err(EX_OSERR, "ioctl(IOETHERSWITCHSETPORT)");
184 }
185 
186 static void
187 set_port_flag(struct cfg *cfg, char *argv[])
188 {
189 	char *flag;
190 	int n;
191 	uint32_t f;
192 	etherswitch_port_t p;
193 
194 	n = 0;
195 	f = 0;
196 	flag = argv[0];
197 	if (strcmp(flag, "none") != 0) {
198 		if (*flag == '-') {
199 			n++;
200 			flag++;
201 		}
202 		if (strcasecmp(flag, "striptag") == 0)
203 			f = ETHERSWITCH_PORT_STRIPTAG;
204 		else if (strcasecmp(flag, "addtag") == 0)
205 			f = ETHERSWITCH_PORT_ADDTAG;
206 		else if (strcasecmp(flag, "firstlock") == 0)
207 			f = ETHERSWITCH_PORT_FIRSTLOCK;
208 		else if (strcasecmp(flag, "dropuntagged") == 0)
209 			f = ETHERSWITCH_PORT_DROPUNTAGGED;
210 		else if (strcasecmp(flag, "doubletag") == 0)
211 			f = ETHERSWITCH_PORT_DOUBLE_TAG;
212 		else if (strcasecmp(flag, "ingress") == 0)
213 			f = ETHERSWITCH_PORT_INGRESS;
214 	}
215 	bzero(&p, sizeof(p));
216 	p.es_port = cfg->unit;
217 	if (ioctl(cfg->fd, IOETHERSWITCHGETPORT, &p) != 0)
218 		err(EX_OSERR, "ioctl(IOETHERSWITCHGETPORT)");
219 	if (n)
220 		p.es_flags &= ~f;
221 	else
222 		p.es_flags |= f;
223 	if (ioctl(cfg->fd, IOETHERSWITCHSETPORT, &p) != 0)
224 		err(EX_OSERR, "ioctl(IOETHERSWITCHSETPORT)");
225 }
226 
227 static void
228 set_port_media(struct cfg *cfg, char *argv[])
229 {
230 	etherswitch_port_t p;
231 	int ifm_ulist[IFMEDIAREQ_NULISTENTRIES];
232 	int subtype;
233 
234 	bzero(&p, sizeof(p));
235 	p.es_port = cfg->unit;
236 	p.es_ifmr.ifm_ulist = ifm_ulist;
237 	p.es_ifmr.ifm_count = IFMEDIAREQ_NULISTENTRIES;
238 	if (ioctl(cfg->fd, IOETHERSWITCHGETPORT, &p) != 0)
239 		err(EX_OSERR, "ioctl(IOETHERSWITCHGETPORT)");
240 	if (p.es_ifmr.ifm_count == 0)
241 		return;
242 	subtype = get_media_subtype(IFM_TYPE(ifm_ulist[0]), argv[1]);
243 	p.es_ifr.ifr_media = (p.es_ifmr.ifm_current & IFM_IMASK) |
244 	        IFM_TYPE(ifm_ulist[0]) | subtype;
245 	if (ioctl(cfg->fd, IOETHERSWITCHSETPORT, &p) != 0)
246 		err(EX_OSERR, "ioctl(IOETHERSWITCHSETPORT)");
247 }
248 
249 static void
250 set_port_mediaopt(struct cfg *cfg, char *argv[])
251 {
252 	etherswitch_port_t p;
253 	int ifm_ulist[IFMEDIAREQ_NULISTENTRIES];
254 	int options;
255 
256 	bzero(&p, sizeof(p));
257 	p.es_port = cfg->unit;
258 	p.es_ifmr.ifm_ulist = ifm_ulist;
259 	p.es_ifmr.ifm_count = IFMEDIAREQ_NULISTENTRIES;
260 	if (ioctl(cfg->fd, IOETHERSWITCHGETPORT, &p) != 0)
261 		err(EX_OSERR, "ioctl(IOETHERSWITCHGETPORT)");
262 	options = get_media_options(IFM_TYPE(ifm_ulist[0]), argv[1]);
263 	if (options == -1)
264 		errx(EX_USAGE, "invalid media options \"%s\"", argv[1]);
265 	if (options & IFM_HDX) {
266 		p.es_ifr.ifr_media &= ~IFM_FDX;
267 		options &= ~IFM_HDX;
268 	}
269 	p.es_ifr.ifr_media |= options;
270 	if (ioctl(cfg->fd, IOETHERSWITCHSETPORT, &p) != 0)
271 		err(EX_OSERR, "ioctl(IOETHERSWITCHSETPORT)");
272 }
273 
274 static void
275 set_port_led(struct cfg *cfg, char *argv[])
276 {
277 	etherswitch_port_t p;
278 	int led;
279 	int i;
280 
281 	bzero(&p, sizeof(p));
282 	p.es_port = cfg->unit;
283 	if (ioctl(cfg->fd, IOETHERSWITCHGETPORT, &p) != 0)
284 		err(EX_OSERR, "ioctl(IOETHERSWITCHGETPORT)");
285 
286 	led = strtol(argv[1], NULL, 0);
287 	if (led < 1 || led > p.es_nleds)
288 		errx(EX_USAGE, "invalid led number %s; must be between 1 and %d",
289 			argv[1], p.es_nleds);
290 
291 	led--;
292 
293 	for (i=0; ledstyles[i] != NULL; i++) {
294 		if (strcmp(argv[2], ledstyles[i]) == 0) {
295 			p.es_led[led] = i;
296 			break;
297 		}
298 	}
299 	if (ledstyles[i] == NULL)
300 		errx(EX_USAGE, "invalid led style \"%s\"", argv[2]);
301 
302 	if (ioctl(cfg->fd, IOETHERSWITCHSETPORT, &p) != 0)
303 		err(EX_OSERR, "ioctl(IOETHERSWITCHSETPORT)");
304 }
305 
306 static void
307 set_vlangroup_vid(struct cfg *cfg, char *argv[])
308 {
309 	int v;
310 	etherswitch_vlangroup_t vg;
311 
312 	memset(&vg, 0, sizeof(vg));
313 	v = strtol(argv[1], NULL, 0);
314 	if (v < 0 || v > IEEE802DOT1Q_VID_MAX)
315 		errx(EX_USAGE, "vlan must be between 0 and %d", IEEE802DOT1Q_VID_MAX);
316 	vg.es_vlangroup = cfg->unit;
317 	if (ioctl(cfg->fd, IOETHERSWITCHGETVLANGROUP, &vg) != 0)
318 		err(EX_OSERR, "ioctl(IOETHERSWITCHGETVLANGROUP)");
319 	vg.es_vid = v;
320 	if (ioctl(cfg->fd, IOETHERSWITCHSETVLANGROUP, &vg) != 0)
321 		err(EX_OSERR, "ioctl(IOETHERSWITCHSETVLANGROUP)");
322 }
323 
324 static void
325 set_vlangroup_members(struct cfg *cfg, char *argv[])
326 {
327 	etherswitch_vlangroup_t vg;
328 	int member, untagged;
329 	char *c, *d;
330 	int v;
331 
332 	member = untagged = 0;
333 	memset(&vg, 0, sizeof(vg));
334 	if (strcmp(argv[1], "none") != 0) {
335 		for (c=argv[1]; *c; c=d) {
336 			v = strtol(c, &d, 0);
337 			if (d == c)
338 				break;
339 			if (v < 0 || v >= cfg->info.es_nports)
340 				errx(EX_USAGE, "Member port must be between 0 and %d", cfg->info.es_nports-1);
341 			if (d[0] == ',' || d[0] == '\0' ||
342 				((d[0] == 't' || d[0] == 'T') && (d[1] == ',' || d[1] == '\0'))) {
343 				if (d[0] == 't' || d[0] == 'T') {
344 					untagged &= ~ETHERSWITCH_PORTMASK(v);
345 					d++;
346 				} else
347 					untagged |= ETHERSWITCH_PORTMASK(v);
348 				member |= ETHERSWITCH_PORTMASK(v);
349 				d++;
350 			} else
351 				errx(EX_USAGE, "Invalid members specification \"%s\"", d);
352 		}
353 	}
354 	vg.es_vlangroup = cfg->unit;
355 	if (ioctl(cfg->fd, IOETHERSWITCHGETVLANGROUP, &vg) != 0)
356 		err(EX_OSERR, "ioctl(IOETHERSWITCHGETVLANGROUP)");
357 	vg.es_member_ports = member;
358 	vg.es_untagged_ports = untagged;
359 	if (ioctl(cfg->fd, IOETHERSWITCHSETVLANGROUP, &vg) != 0)
360 		err(EX_OSERR, "ioctl(IOETHERSWITCHSETVLANGROUP)");
361 }
362 
363 static int
364 set_register(struct cfg *cfg, char *arg)
365 {
366 	int a, v;
367 	char *c;
368 
369 	a = strtol(arg, &c, 0);
370 	if (c==arg)
371 		return (1);
372 	if (*c == '=') {
373 		v = strtoul(c+1, NULL, 0);
374 		write_register(cfg, a, v);
375 	}
376 	printf("\treg 0x%04x=0x%08x\n", a, read_register(cfg, a));
377 	return (0);
378 }
379 
380 static int
381 set_phyregister(struct cfg *cfg, char *arg)
382 {
383 	int phy, reg, val;
384 	char *c, *d;
385 
386 	phy = strtol(arg, &c, 0);
387 	if (c==arg)
388 		return (1);
389 	if (*c != '.')
390 		return (1);
391 	d = c+1;
392 	reg = strtol(d, &c, 0);
393 	if (d == c)
394 		return (1);
395 	if (*c == '=') {
396 		val = strtoul(c+1, NULL, 0);
397 		write_phyregister(cfg, phy, reg, val);
398 	}
399 	printf("\treg %d.0x%02x=0x%04x\n", phy, reg, read_phyregister(cfg, phy, reg));
400 	return (0);
401 }
402 
403 static void
404 set_vlan_mode(struct cfg *cfg, char *argv[])
405 {
406 	etherswitch_conf_t conf;
407 
408 	bzero(&conf, sizeof(conf));
409 	conf.cmd = ETHERSWITCH_CONF_VLAN_MODE;
410 	if (strcasecmp(argv[1], "isl") == 0)
411 		conf.vlan_mode = ETHERSWITCH_VLAN_ISL;
412 	else if (strcasecmp(argv[1], "port") == 0)
413 		conf.vlan_mode = ETHERSWITCH_VLAN_PORT;
414 	else if (strcasecmp(argv[1], "dot1q") == 0)
415 		conf.vlan_mode = ETHERSWITCH_VLAN_DOT1Q;
416 	else if (strcasecmp(argv[1], "dot1q4k") == 0)
417 		conf.vlan_mode = ETHERSWITCH_VLAN_DOT1Q_4K;
418 	else if (strcasecmp(argv[1], "qinq") == 0)
419 		conf.vlan_mode = ETHERSWITCH_VLAN_DOUBLE_TAG;
420 	else
421 		conf.vlan_mode = 0;
422 	if (ioctl(cfg->fd, IOETHERSWITCHSETCONF, &conf) != 0)
423 		err(EX_OSERR, "ioctl(IOETHERSWITCHSETCONF)");
424 }
425 
426 static void
427 print_config(struct cfg *cfg)
428 {
429 	const char *c;
430 
431 	/* Get the device name. */
432 	c = strrchr(cfg->controlfile, '/');
433 	if (c != NULL)
434 		c = c + 1;
435 	else
436 		c = cfg->controlfile;
437 
438 	/* Print VLAN mode. */
439 	if (cfg->conf.cmd & ETHERSWITCH_CONF_VLAN_MODE) {
440 		printf("%s: VLAN mode: ", c);
441 		switch (cfg->conf.vlan_mode) {
442 		case ETHERSWITCH_VLAN_ISL:
443 			printf("ISL\n");
444 			break;
445 		case ETHERSWITCH_VLAN_PORT:
446 			printf("PORT\n");
447 			break;
448 		case ETHERSWITCH_VLAN_DOT1Q:
449 			printf("DOT1Q\n");
450 			break;
451 		case ETHERSWITCH_VLAN_DOT1Q_4K:
452 			printf("DOT1Q4K\n");
453 			break;
454 		case ETHERSWITCH_VLAN_DOUBLE_TAG:
455 			printf("QinQ\n");
456 			break;
457 		default:
458 			printf("none\n");
459 		}
460 	}
461 }
462 
463 static void
464 print_port(struct cfg *cfg, int port)
465 {
466 	etherswitch_port_t p;
467 	int ifm_ulist[IFMEDIAREQ_NULISTENTRIES];
468 	int i;
469 
470 	bzero(&p, sizeof(p));
471 	p.es_port = port;
472 	p.es_ifmr.ifm_ulist = ifm_ulist;
473 	p.es_ifmr.ifm_count = IFMEDIAREQ_NULISTENTRIES;
474 	if (ioctl(cfg->fd, IOETHERSWITCHGETPORT, &p) != 0)
475 		err(EX_OSERR, "ioctl(IOETHERSWITCHGETPORT)");
476 	printf("port%d:\n", port);
477 	if (cfg->conf.vlan_mode == ETHERSWITCH_VLAN_DOT1Q)
478 		printf("\tpvid: %d\n", p.es_pvid);
479 	printb("\tflags", p.es_flags, ETHERSWITCH_PORT_FLAGS_BITS);
480 	printf("\n");
481 	if (p.es_nleds) {
482 		printf("\tled: ");
483 		for (i = 0; i < p.es_nleds; i++) {
484 			printf("%d:%s%s", i+1, ledstyles[p.es_led[i]], (i==p.es_nleds-1)?"":" ");
485 		}
486 		printf("\n");
487 	}
488 	printf("\tmedia: ");
489 	print_media_word(p.es_ifmr.ifm_current, 1);
490 	if (p.es_ifmr.ifm_active != p.es_ifmr.ifm_current) {
491 		putchar(' ');
492 		putchar('(');
493 		print_media_word(p.es_ifmr.ifm_active, 0);
494 		putchar(')');
495 	}
496 	putchar('\n');
497 	printf("\tstatus: %s\n", (p.es_ifmr.ifm_status & IFM_ACTIVE) != 0 ? "active" : "no carrier");
498 	if (cfg->mediatypes) {
499 		printf("\tsupported media:\n");
500 		if (p.es_ifmr.ifm_count > IFMEDIAREQ_NULISTENTRIES)
501 			p.es_ifmr.ifm_count = IFMEDIAREQ_NULISTENTRIES;
502 		for (i=0; i<p.es_ifmr.ifm_count; i++) {
503 			printf("\t\tmedia ");
504 			print_media_word(ifm_ulist[i], 0);
505 			putchar('\n');
506 		}
507 	}
508 }
509 
510 static void
511 print_vlangroup(struct cfg *cfg, int vlangroup)
512 {
513 	etherswitch_vlangroup_t vg;
514 	int i, comma;
515 
516 	vg.es_vlangroup = vlangroup;
517 	if (ioctl(cfg->fd, IOETHERSWITCHGETVLANGROUP, &vg) != 0)
518 		err(EX_OSERR, "ioctl(IOETHERSWITCHGETVLANGROUP)");
519 	if ((vg.es_vid & ETHERSWITCH_VID_VALID) == 0)
520 		return;
521 	vg.es_vid &= ETHERSWITCH_VID_MASK;
522 	printf("vlangroup%d:\n", vlangroup);
523 	if (cfg->conf.vlan_mode == ETHERSWITCH_VLAN_PORT)
524 		printf("\tport: %d\n", vg.es_vid);
525 	else
526 		printf("\tvlan: %d\n", vg.es_vid);
527 	printf("\tmembers ");
528 	comma = 0;
529 	if (vg.es_member_ports != 0)
530 		for (i=0; i<cfg->info.es_nports; i++) {
531 			if ((vg.es_member_ports & ETHERSWITCH_PORTMASK(i)) != 0) {
532 				if (comma)
533 					printf(",");
534 				printf("%d", i);
535 				if ((vg.es_untagged_ports & ETHERSWITCH_PORTMASK(i)) == 0)
536 					printf("t");
537 				comma = 1;
538 			}
539 		}
540 	else
541 		printf("none");
542 	printf("\n");
543 }
544 
545 static void
546 print_info(struct cfg *cfg)
547 {
548 	const char *c;
549 	int i;
550 
551 	c = strrchr(cfg->controlfile, '/');
552 	if (c != NULL)
553 		c = c + 1;
554 	else
555 		c = cfg->controlfile;
556 	if (cfg->verbose) {
557 		printf("%s: %s with %d ports and %d VLAN groups\n", c,
558 		    cfg->info.es_name, cfg->info.es_nports,
559 		    cfg->info.es_nvlangroups);
560 		printf("%s: ", c);
561 		printb("VLAN capabilities",  cfg->info.es_vlan_caps,
562 		    ETHERSWITCH_VLAN_CAPS_BITS);
563 		printf("\n");
564 	}
565 	print_config(cfg);
566 	for (i=0; i<cfg->info.es_nports; i++) {
567 		print_port(cfg, i);
568 	}
569 	for (i=0; i<cfg->info.es_nvlangroups; i++) {
570 		print_vlangroup(cfg, i);
571 	}
572 }
573 
574 static void
575 usage(struct cfg *cfg __unused, char *argv[] __unused)
576 {
577 	fprintf(stderr, "usage: etherswitchctl\n");
578 	fprintf(stderr, "\tetherswitchcfg [-f control file] info\n");
579 	fprintf(stderr, "\tetherswitchcfg [-f control file] config "
580 	    "command parameter\n");
581 	fprintf(stderr, "\t\tconfig commands: vlan_mode\n");
582 	fprintf(stderr, "\tetherswitchcfg [-f control file] phy "
583 	    "phy.register[=value]\n");
584 	fprintf(stderr, "\tetherswitchcfg [-f control file] portX "
585 	    "[flags] command parameter\n");
586 	fprintf(stderr, "\t\tport commands: pvid, media, mediaopt, led\n");
587 	fprintf(stderr, "\tetherswitchcfg [-f control file] reg "
588 	    "register[=value]\n");
589 	fprintf(stderr, "\tetherswitchcfg [-f control file] vlangroupX "
590 	    "command parameter\n");
591 	fprintf(stderr, "\t\tvlangroup commands: vlan, members\n");
592 	exit(EX_USAGE);
593 }
594 
595 static void
596 newmode(struct cfg *cfg, enum cmdmode mode)
597 {
598 	if (mode == cfg->mode)
599 		return;
600 	switch (cfg->mode) {
601 	case MODE_NONE:
602 		break;
603 	case MODE_CONFIG:
604 		/*
605 		 * Read the updated the configuration (it can be different
606 		 * from the last time we read it).
607 		 */
608 		if (ioctl(cfg->fd, IOETHERSWITCHGETCONF, &cfg->conf) != 0)
609 			err(EX_OSERR, "ioctl(IOETHERSWITCHGETCONF)");
610 		print_config(cfg);
611 		break;
612 	case MODE_PORT:
613 		print_port(cfg, cfg->unit);
614 		break;
615 	case MODE_VLANGROUP:
616 		print_vlangroup(cfg, cfg->unit);
617 		break;
618 	case MODE_REGISTER:
619 	case MODE_PHYREG:
620 		break;
621 	}
622 	cfg->mode = mode;
623 }
624 
625 int
626 main(int argc, char *argv[])
627 {
628 	int ch;
629 	struct cfg cfg;
630 	int i;
631 
632 	bzero(&cfg, sizeof(cfg));
633 	cfg.controlfile = "/dev/etherswitch0";
634 	while ((ch = getopt(argc, argv, "f:mv?")) != -1)
635 		switch(ch) {
636 		case 'f':
637 			cfg.controlfile = optarg;
638 			break;
639 		case 'm':
640 			cfg.mediatypes++;
641 			break;
642 		case 'v':
643 			cfg.verbose++;
644 			break;
645 		case '?':
646 			/* FALLTHROUGH */
647 		default:
648 			usage(&cfg, argv);
649 		}
650 	argc -= optind;
651 	argv += optind;
652 	cfg.fd = open(cfg.controlfile, O_RDONLY);
653 	if (cfg.fd < 0)
654 		err(EX_UNAVAILABLE, "Can't open control file: %s", cfg.controlfile);
655 	if (ioctl(cfg.fd, IOETHERSWITCHGETINFO, &cfg.info) != 0)
656 		err(EX_OSERR, "ioctl(IOETHERSWITCHGETINFO)");
657 	if (ioctl(cfg.fd, IOETHERSWITCHGETCONF, &cfg.conf) != 0)
658 		err(EX_OSERR, "ioctl(IOETHERSWITCHGETCONF)");
659 	if (argc == 0) {
660 		print_info(&cfg);
661 		return (0);
662 	}
663 	cfg.mode = MODE_NONE;
664 	while (argc > 0) {
665 		switch(cfg.mode) {
666 		case MODE_NONE:
667 			if (strcmp(argv[0], "info") == 0) {
668 				print_info(&cfg);
669 			} else if (sscanf(argv[0], "port%d", &cfg.unit) == 1) {
670 				if (cfg.unit < 0 || cfg.unit >= cfg.info.es_nports)
671 					errx(EX_USAGE, "port unit must be between 0 and %d", cfg.info.es_nports - 1);
672 				newmode(&cfg, MODE_PORT);
673 			} else if (sscanf(argv[0], "vlangroup%d", &cfg.unit) == 1) {
674 				if (cfg.unit < 0 || cfg.unit >= cfg.info.es_nvlangroups)
675 					errx(EX_USAGE,
676 					    "vlangroup unit must be between 0 and %d",
677 					    cfg.info.es_nvlangroups - 1);
678 				newmode(&cfg, MODE_VLANGROUP);
679 			} else if (strcmp(argv[0], "config") == 0) {
680 				newmode(&cfg, MODE_CONFIG);
681 			} else if (strcmp(argv[0], "phy") == 0) {
682 				newmode(&cfg, MODE_PHYREG);
683 			} else if (strcmp(argv[0], "reg") == 0) {
684 				newmode(&cfg, MODE_REGISTER);
685 			} else if (strcmp(argv[0], "help") == 0) {
686 				usage(&cfg, argv);
687 			} else {
688 				errx(EX_USAGE, "Unknown command \"%s\"", argv[0]);
689 			}
690 			break;
691 		case MODE_PORT:
692 		case MODE_CONFIG:
693 		case MODE_VLANGROUP:
694 			for(i=0; cmds[i].name != NULL; i++) {
695 				if (cfg.mode == cmds[i].mode && strcmp(argv[0], cmds[i].name) == 0) {
696 					if (argc < (cmds[i].args + 1)) {
697 						printf("%s needs %d argument%s\n", cmds[i].name, cmds[i].args, (cmds[i].args==1)?"":",");
698 						break;
699 					}
700 					(cmds[i].f)(&cfg, argv);
701 					argc -= cmds[i].args;
702 					argv += cmds[i].args;
703 					break;
704 				}
705 			}
706 			if (cmds[i].name == NULL) {
707 				newmode(&cfg, MODE_NONE);
708 				continue;
709 			}
710 			break;
711 		case MODE_REGISTER:
712 			if (set_register(&cfg, argv[0]) != 0) {
713 				newmode(&cfg, MODE_NONE);
714 				continue;
715 			}
716 			break;
717 		case MODE_PHYREG:
718 			if (set_phyregister(&cfg, argv[0]) != 0) {
719 				newmode(&cfg, MODE_NONE);
720 				continue;
721 			}
722 			break;
723 		}
724 		argc--;
725 		argv++;
726 	}
727 	/* switch back to command mode to print configuration for last command */
728 	newmode(&cfg, MODE_NONE);
729 	close(cfg.fd);
730 	return (0);
731 }
732 
733 static struct cmds cmds[] = {
734 	{ MODE_PORT, "pvid", 1, set_port_vid },
735 	{ MODE_PORT, "media", 1, set_port_media },
736 	{ MODE_PORT, "mediaopt", 1, set_port_mediaopt },
737 	{ MODE_PORT, "led", 2, set_port_led },
738 	{ MODE_PORT, "addtag", 0, set_port_flag },
739 	{ MODE_PORT, "-addtag", 0, set_port_flag },
740 	{ MODE_PORT, "ingress", 0, set_port_flag },
741 	{ MODE_PORT, "-ingress", 0, set_port_flag },
742 	{ MODE_PORT, "striptag", 0, set_port_flag },
743 	{ MODE_PORT, "-striptag", 0, set_port_flag },
744 	{ MODE_PORT, "doubletag", 0, set_port_flag },
745 	{ MODE_PORT, "-doubletag", 0, set_port_flag },
746 	{ MODE_PORT, "firstlock", 0, set_port_flag },
747 	{ MODE_PORT, "-firstlock", 0, set_port_flag },
748 	{ MODE_PORT, "dropuntagged", 0, set_port_flag },
749 	{ MODE_PORT, "-dropuntagged", 0, set_port_flag },
750 	{ MODE_CONFIG, "vlan_mode", 1, set_vlan_mode },
751 	{ MODE_VLANGROUP, "vlan", 1, set_vlangroup_vid },
752 	{ MODE_VLANGROUP, "members", 1, set_vlangroup_members },
753 	{ 0, NULL, 0, NULL }
754 };
755