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brconfig.c revision 1.13
      1 /*	$NetBSD: brconfig.c,v 1.13 2011/08/29 14:29:21 joerg Exp $	*/
      2 
      3 /*
      4  * Copyright 2001 Wasabi Systems, Inc.
      5  * All rights reserved.
      6  *
      7  * Written by Jason R. Thorpe for Wasabi Systems, Inc.
      8  *
      9  * Redistribution and use in source and binary forms, with or without
     10  * modification, are permitted provided that the following conditions
     11  * are met:
     12  * 1. Redistributions of source code must retain the above copyright
     13  *    notice, this list of conditions and the following disclaimer.
     14  * 2. Redistributions in binary form must reproduce the above copyright
     15  *    notice, this list of conditions and the following disclaimer in the
     16  *    documentation and/or other materials provided with the distribution.
     17  * 3. All advertising materials mentioning features or use of this software
     18  *    must display the following acknowledgement:
     19  *	This product includes software developed for the NetBSD Project by
     20  *	Wasabi Systems, Inc.
     21  * 4. The name of Wasabi Systems, Inc. may not be used to endorse
     22  *    or promote products derived from this software without specific prior
     23  *    written permission.
     24  *
     25  * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
     26  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     27  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     28  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL WASABI SYSTEMS, INC
     29  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     30  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     31  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     32  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     33  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     34  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     35  * POSSIBILITY OF SUCH DAMAGE.
     36  */
     37 
     38 /*
     39  * brconfig(8) --
     40  *
     41  *	Configuration utility for the bridge(4) driver.
     42  */
     43 #include <sys/cdefs.h>
     44 
     45 #ifndef lint
     46 __RCSID("$NetBSD: brconfig.c,v 1.13 2011/08/29 14:29:21 joerg Exp $");
     47 #endif
     48 
     49 
     50 #include <sys/param.h>
     51 #include <sys/socket.h>
     52 #include <sys/ioctl.h>
     53 
     54 #include <net/if.h>
     55 #include <net/if_ether.h>
     56 #include <net/if_bridgevar.h>
     57 
     58 #include <ctype.h>
     59 #include <err.h>
     60 #include <errno.h>
     61 #include <stdio.h>
     62 #include <stdlib.h>
     63 #include <string.h>
     64 #include <unistd.h>
     65 #include <ifaddrs.h>
     66 
     67 struct command {
     68 	const char *cmd_keyword;
     69 	int	cmd_argcnt;
     70 	int	cmd_flags;
     71 	void	(*cmd_func)(const struct command *, int, const char *,
     72 		    char **);
     73 };
     74 
     75 #define	CMD_INVERT	0x01	/* "invert" the sense of the command */
     76 
     77 static void	cmd_add(const struct command *, int, const char *, char **);
     78 static void	cmd_delete(const struct command *, int, const char *, char **);
     79 static void	cmd_up(const struct command *, int, const char *, char **);
     80 static void	cmd_down(const struct command *, int, const char *, char **);
     81 static void	cmd_discover(const struct command *, int, const char *, char **);
     82 static void	cmd_learn(const struct command *, int, const char *, char **);
     83 static void	cmd_flush(const struct command *, int, const char *, char **);
     84 static void	cmd_flushall(const struct command *, int, const char *, char **);
     85 static void	cmd_static(const struct command *, int, const char *, char **);
     86 static void	cmd_deladdr(const struct command *, int, const char *, char **);
     87 static void	cmd_addr(const struct command *, int, const char *, char **);
     88 static void	cmd_maxaddr(const struct command *, int, const char *, char **);
     89 static void	cmd_hellotime(const struct command *, int, const char *, char **);
     90 static void	cmd_fwddelay(const struct command *, int, const char *, char **);
     91 static void	cmd_maxage(const struct command *, int, const char *, char **);
     92 static void	cmd_priority(const struct command *, int, const char *, char **);
     93 static void	cmd_ifpriority(const struct command *, int, const char *, char **);
     94 static void	cmd_ifpathcost(const struct command *, int, const char *, char **);
     95 static void	cmd_timeout(const struct command *, int, const char *, char **);
     96 static void	cmd_stp(const struct command *, int, const char *, char **);
     97 static void	cmd_ipf(const struct command *, int, const char *, char **);
     98 
     99 static const struct command command_table[] = {
    100 	{ "add",		1,	0,		cmd_add },
    101 	{ "delete",		1,	0,		cmd_delete },
    102 
    103 	{ "up",			0,	0,		cmd_up },
    104 	{ "down",		0,	0,		cmd_down },
    105 
    106 	{ "discover",		1,	0,		cmd_discover },
    107 	{ "-discover",		1,	CMD_INVERT,	cmd_discover },
    108 
    109 	{ "learn",		1,	0,		cmd_learn },
    110 	{ "-learn",		1,	CMD_INVERT,	cmd_learn },
    111 
    112 	{ "flush",		0,	0,		cmd_flush },
    113 	{ "flushall",		0,	0,		cmd_flushall },
    114 
    115 	{ "static",		2,	0,		cmd_static },
    116 	{ "deladdr",		1,	0,		cmd_deladdr },
    117 
    118 	{ "addr",		0,	0,		cmd_addr },
    119 	{ "maxaddr",		1,	0,		cmd_maxaddr },
    120 
    121 	{ "hellotime",		1,	0,		cmd_hellotime },
    122 	{ "fwddelay",		1,	0,		cmd_fwddelay },
    123 	{ "maxage",		1,	0,		cmd_maxage },
    124 	{ "priority",		1,	0,		cmd_priority },
    125 	{ "ifpriority",		2,	0,		cmd_ifpriority },
    126 	{ "ifpathcost",		2,	0,		cmd_ifpathcost },
    127 	{ "timeout",		1,	0,		cmd_timeout },
    128 	{ "stp",		1,	0,		cmd_stp },
    129 	{ "-stp",		1,	CMD_INVERT,	cmd_stp },
    130 
    131         { "ipf",                0,      0,              cmd_ipf },
    132         { "-ipf",               0,      CMD_INVERT,     cmd_ipf },
    133 
    134 	{ NULL,			0,	0,		NULL },
    135 };
    136 
    137 static void	printall(int);
    138 static void	status(int, const char *);
    139 static int	is_bridge(const char *);
    140 static void	show_config(int, const char *, const char *);
    141 static void	show_interfaces(int, const char *, const char *);
    142 static void	show_addresses(int, const char *, const char *);
    143 static int	get_val(const char *, u_long *);
    144 static int	do_cmd(int, const char *, u_long, void *, size_t, int);
    145 static void	do_ifflag(int, const char *, int, int);
    146 static void	do_bridgeflag(int, const char *, const char *, int, int);
    147 
    148 static void	printb(const char *, u_int, const char *);
    149 
    150 __dead static void	usage(void);
    151 
    152 static int	aflag;
    153 
    154 static struct ifreq g_ifr;
    155 static int	g_ifr_updated;
    156 
    157 int
    158 main(int argc, char *argv[])
    159 {
    160 	const struct command *cmd;
    161 	char *bridge;
    162 	int sock, ch;
    163 
    164 	if (argc < 2)
    165 		usage();
    166 
    167 	sock = socket(AF_INET, SOCK_DGRAM, 0);
    168 	if (sock < 0)
    169 		err(1, "socket");
    170 
    171 	while ((ch = getopt(argc, argv, "a")) != -1) {
    172 		switch (ch) {
    173 		case 'a':
    174 			aflag = 1;
    175 			break;
    176 
    177 		default:
    178 			usage();
    179 		}
    180 	}
    181 
    182 	argc -= optind;
    183 	argv += optind;
    184 
    185 	if (aflag) {
    186 		if (argc != 0)
    187 			usage();
    188 		printall(sock);
    189 		exit(0);
    190 	}
    191 
    192 	if (argc == 0)
    193 		usage();
    194 
    195 	bridge = argv[0];
    196 
    197 	if (is_bridge(bridge) == 0)
    198 		errx(1, "%s is not a bridge", bridge);
    199 
    200 	/* Get a copy of the interface flags. */
    201 	strlcpy(g_ifr.ifr_name, bridge, sizeof(g_ifr.ifr_name));
    202 	if (ioctl(sock, SIOCGIFFLAGS, &g_ifr) < 0)
    203 		err(1, "unable to get interface flags");
    204 
    205 	argc--;
    206 	argv++;
    207 
    208 	if (argc == 0) {
    209 		status(sock, bridge);
    210 		exit(0);
    211 	}
    212 
    213 	while (argc != 0) {
    214 		for (cmd = command_table; cmd->cmd_keyword != NULL; cmd++) {
    215 			if (strcmp(cmd->cmd_keyword, argv[0]) == 0)
    216 				break;
    217 		}
    218 		if (cmd->cmd_keyword == NULL)
    219 			errx(1, "unknown command: %s", argv[0]);
    220 
    221 		argc--;
    222 		argv++;
    223 
    224 		if (argc < cmd->cmd_argcnt)
    225 			errx(1, "command %s requires %d argument%s",
    226 			    cmd->cmd_keyword, cmd->cmd_argcnt,
    227 			    cmd->cmd_argcnt == 1 ? "" : "s");
    228 
    229 		(*cmd->cmd_func)(cmd, sock, bridge, argv);
    230 
    231 		argc -= cmd->cmd_argcnt;
    232 		argv += cmd->cmd_argcnt;
    233 	}
    234 
    235 	/* If the flags changed, update them. */
    236 	if (g_ifr_updated && ioctl(sock, SIOCSIFFLAGS, &g_ifr) < 0)
    237 		err(1, "unable to set interface flags");
    238 
    239 	exit (0);
    240 }
    241 
    242 static void
    243 usage(void)
    244 {
    245 	static const char *usage_strings[] = {
    246 		"-a",
    247 		"<bridge>",
    248 		"<bridge> up|down",
    249 		"<bridge> addr",
    250 		"<bridge> add <interface>",
    251 		"<bridge> delete <interface>",
    252 		"<bridge> maxaddr <size>",
    253 		"<bridge> timeout <time>",
    254 		"<bridge> static <interface> <address>",
    255 		"<bridge> deladdr <address>",
    256 		"<bridge> flush",
    257 		"<bridge> flushall",
    258 		"<bridge> ipf|-ipf",
    259 		"<bridge> discover|-discover <interface>",
    260 		"<bridge> learn|-learn <interface>",
    261 		"<bridge> stp|-stp <interface>",
    262 		"<bridge> maxage <time>",
    263 		"<bridge> fwddelay <time>",
    264 		"<bridge> hellotime <time>",
    265 		"<bridge> priority <value>",
    266 		"<bridge> ifpriority <interface> <value>",
    267 		"<bridge> ifpathcost <interface> <value>",
    268 		NULL,
    269 	};
    270 	extern const char *__progname;
    271 	int i;
    272 
    273 	for (i = 0; usage_strings[i] != NULL; i++)
    274 		fprintf(stderr, "%s %s %s\n",
    275 		    i == 0 ? "usage:" : "      ",
    276 		    __progname, usage_strings[i]);
    277 
    278 	exit(1);
    279 }
    280 
    281 static int
    282 is_bridge(const char *bridge)
    283 {
    284 
    285 	if (strncmp(bridge, "bridge", 6) != 0 ||
    286 	    isdigit((unsigned char)bridge[6]) == 0)
    287 		return (0);
    288 
    289 	return (1);
    290 }
    291 
    292 static void
    293 printb(const char *s, u_int v, const char *bits)
    294 {
    295 	int i, any = 0;
    296 	char c;
    297 
    298 	if (bits && *bits == 8)
    299 		printf("%s=%o", s, v);
    300 	else
    301 		printf("%s=%x", s, v);
    302 	if (bits) {
    303 		bits++;
    304 		putchar('<');
    305 		while ((i = *bits++) != 0) {
    306 			if (v & (1 << (i-1))) {
    307 				if (any)
    308 					putchar(',');
    309 				any = 1;
    310 				for (; (c = *bits) > 32; bits++)
    311 					putchar(c);
    312 			} else
    313 				for (; *bits > 32; bits++)
    314 					;
    315 		}
    316 		putchar('>');
    317 	}
    318 }
    319 
    320 static void
    321 printall(int sock)
    322 {
    323 	struct ifaddrs *ifap, *ifa;
    324 	char *p;
    325 
    326 	if (getifaddrs(&ifap) != 0)
    327 		err(1, "getifaddrs");
    328 	p = NULL;
    329 	for (ifa = ifap; ifa != NULL; ifa = ifa->ifa_next) {
    330 		if (is_bridge(ifa->ifa_name) == 0)
    331 			continue;
    332 		if (p != NULL && strcmp(p, ifa->ifa_name) == 0)
    333 			continue;
    334 		p = ifa->ifa_name;
    335 		status(sock, ifa->ifa_name);
    336 	}
    337 
    338 	freeifaddrs(ifap);
    339 }
    340 
    341 static void
    342 status(int sock, const char *bridge)
    343 {
    344 	struct ifreq ifr;
    345 	struct ifbrparam bp1, bp2;
    346 
    347 	memset(&ifr, 0, sizeof(ifr));
    348 
    349 	strlcpy(ifr.ifr_name, bridge, sizeof(ifr.ifr_name));
    350 	if (ioctl(sock, SIOCGIFFLAGS, &ifr) < 0)
    351 		err(1, "unable to get flags");
    352 
    353 	printf("%s: ", bridge);
    354 	printb("flags", ifr.ifr_flags, IFFBITS);
    355 	printf("\n");
    356 
    357 	printf("\tConfiguration:\n");
    358 	show_config(sock, bridge, "\t\t");
    359 
    360 	printf("\tInterfaces:\n");
    361 	show_interfaces(sock, bridge, "\t\t");
    362 
    363 	if (do_cmd(sock, bridge, BRDGGCACHE, &bp1, sizeof(bp1), 0) < 0)
    364 		err(1, "unable to get address cache size");
    365 	if (do_cmd(sock, bridge, BRDGGTO, &bp2, sizeof(bp2), 0) < 0)
    366 		err(1, "unable to get address timeout");
    367 
    368 	printf("\tAddress cache (max cache: %u, timeout: %u):\n",
    369 	    bp1.ifbrp_csize, bp2.ifbrp_ctime);
    370 	show_addresses(sock, bridge, "\t\t");
    371 }
    372 
    373 static void
    374 show_config(int sock, const char *bridge, const char *prefix)
    375 {
    376 	struct ifbrparam param;
    377 	u_int32_t ipfflags;
    378 	u_int16_t pri;
    379 	u_int8_t ht, fd, ma;
    380 
    381 	if (do_cmd(sock, bridge, BRDGGPRI, &param, sizeof(param), 0) < 0)
    382 		err(1, "unable to get bridge priority");
    383 	pri = param.ifbrp_prio;
    384 
    385 	if (do_cmd(sock, bridge, BRDGGHT, &param, sizeof(param), 0) < 0)
    386 		err(1, "unable to get hellotime");
    387 	ht = param.ifbrp_hellotime;
    388 
    389 	if (do_cmd(sock, bridge, BRDGGFD, &param, sizeof(param), 0) < 0)
    390 		err(1, "unable to get forward delay");
    391 	fd = param.ifbrp_fwddelay;
    392 
    393 	if (do_cmd(sock, bridge, BRDGGMA, &param, sizeof(param), 0) < 0)
    394 		err(1, "unable to get max age");
    395 	ma = param.ifbrp_maxage;
    396 
    397 	printf("%spriority %u hellotime %u fwddelay %u maxage %u\n",
    398 	    prefix, pri, ht, fd, ma);
    399 
    400 	if (do_cmd(sock, bridge, BRDGGFILT, &param, sizeof(param), 0) < 0) {
    401 		/* err(1, "unable to get ipfilter status"); */
    402 		param.ifbrp_filter = 0;
    403 	}
    404 
    405 	ipfflags = param.ifbrp_filter;
    406 	printf("%sipfilter %s flags 0x%x\n", prefix,
    407 		(ipfflags & IFBF_FILT_USEIPF) ? "enabled" : "disabled",
    408 		ipfflags);
    409 }
    410 
    411 static void
    412 show_interfaces(int sock, const char *bridge, const char *prefix)
    413 {
    414 	static const char *stpstates[] = {
    415 		"disabled",
    416 		"listening",
    417 		"learning",
    418 		"forwarding",
    419 		"blocking",
    420 	};
    421 	struct ifbifconf bifc;
    422 	struct ifbreq *req;
    423 	char *inbuf = NULL, *ninbuf;
    424 	uint32_t i, len = 8192;
    425 
    426 	for (;;) {
    427 		ninbuf = realloc(inbuf, len);
    428 		if (ninbuf == NULL)
    429 			err(1, "unable to allocate interface buffer");
    430 		bifc.ifbic_len = len;
    431 		bifc.ifbic_buf = inbuf = ninbuf;
    432 		if (do_cmd(sock, bridge, BRDGGIFS, &bifc, sizeof(bifc), 0) < 0)
    433 			err(1, "unable to get interface list");
    434 		if ((bifc.ifbic_len + sizeof(*req)) < len)
    435 			break;
    436 		len *= 2;
    437 	}
    438 
    439 	for (i = 0; i < bifc.ifbic_len / sizeof(*req); i++) {
    440 		req = bifc.ifbic_req + i;
    441 		printf("%s%s ", prefix, req->ifbr_ifsname);
    442 		printb("flags", req->ifbr_ifsflags, IFBIFBITS);
    443 		printf("\n");
    444 		printf("%s\t", prefix);
    445 		printf("port %u priority %u",
    446 		    req->ifbr_portno, req->ifbr_priority);
    447 		if (req->ifbr_ifsflags & IFBIF_STP) {
    448 			printf(" path cost %u", req->ifbr_path_cost);
    449 			if (req->ifbr_state <
    450 			    sizeof(stpstates) / sizeof(stpstates[0]))
    451 				printf(" %s", stpstates[req->ifbr_state]);
    452 			else
    453 				printf(" <unknown state %d>",
    454 				    req->ifbr_state);
    455 		}
    456 		printf("\n");
    457 	}
    458 
    459 	free(inbuf);
    460 }
    461 
    462 static void
    463 show_addresses(int sock, const char *bridge, const char *prefix)
    464 {
    465 	struct ifbaconf ifbac;
    466 	struct ifbareq *ifba;
    467 	char *inbuf = NULL, *ninbuf;
    468 	uint32_t i, len = 8192;
    469 	struct ether_addr ea;
    470 
    471 	for (;;) {
    472 		ninbuf = realloc(inbuf, len);
    473 		if (ninbuf == NULL)
    474 			err(1, "unable to allocate address buffer");
    475 		ifbac.ifbac_len = len;
    476 		ifbac.ifbac_buf = inbuf = ninbuf;
    477 		if (do_cmd(sock, bridge, BRDGRTS, &ifbac, sizeof(ifbac), 0) < 0)
    478 			err(1, "unable to get address cache");
    479 		if ((ifbac.ifbac_len + sizeof(*ifba)) < len)
    480 			break;
    481 		len *= 2;
    482 	}
    483 
    484 	for (i = 0; i < ifbac.ifbac_len / sizeof(*ifba); i++) {
    485 		ifba = ifbac.ifbac_req + i;
    486 		memcpy(ea.ether_addr_octet, ifba->ifba_dst,
    487 		    sizeof(ea.ether_addr_octet));
    488 		printf("%s%s %s %lu ", prefix, ether_ntoa(&ea),
    489 		    ifba->ifba_ifsname, ifba->ifba_expire);
    490 		printb("flags", ifba->ifba_flags, IFBAFBITS);
    491 		printf("\n");
    492 	}
    493 
    494 	free(inbuf);
    495 }
    496 
    497 static int
    498 get_val(const char *cp, u_long *valp)
    499 {
    500 	char *endptr;
    501 	u_long val;
    502 
    503 	errno = 0;
    504 	val = strtoul(cp, &endptr, 0);
    505 	if (cp[0] == '\0' || endptr[0] != '\0' || errno == ERANGE)
    506 		return (-1);
    507 
    508 	*valp = val;
    509 	return (0);
    510 }
    511 
    512 static int
    513 do_cmd(int sock, const char *bridge, u_long op, void *arg, size_t argsize,
    514     int set)
    515 {
    516 	struct ifdrv ifd;
    517 
    518 	memset(&ifd, 0, sizeof(ifd));
    519 
    520 	strlcpy(ifd.ifd_name, bridge, sizeof(ifd.ifd_name));
    521 	ifd.ifd_cmd = op;
    522 	ifd.ifd_len = argsize;
    523 	ifd.ifd_data = arg;
    524 
    525 	return (ioctl(sock, set ? SIOCSDRVSPEC : SIOCGDRVSPEC, &ifd));
    526 }
    527 
    528 static void
    529 do_ifflag(int sock, const char *bridge, int flag, int set)
    530 {
    531 
    532 	if (set)
    533 		g_ifr.ifr_flags |= flag;
    534 	else
    535 		g_ifr.ifr_flags &= ~flag;
    536 
    537 	g_ifr_updated = 1;
    538 }
    539 
    540 static void
    541 do_bridgeflag(int sock, const char *bridge, const char *ifs, int flag,
    542     int set)
    543 {
    544 	struct ifbreq req;
    545 
    546 	strlcpy(req.ifbr_ifsname, ifs, sizeof(req.ifbr_ifsname));
    547 
    548 	if (do_cmd(sock, bridge, BRDGGIFFLGS, &req, sizeof(req), 0) < 0)
    549 		err(1, "unable to get bridge flags");
    550 
    551 	if (set)
    552 		req.ifbr_ifsflags |= flag;
    553 	else
    554 		req.ifbr_ifsflags &= ~flag;
    555 
    556 	if (do_cmd(sock, bridge, BRDGSIFFLGS, &req, sizeof(req), 1) < 0)
    557 		err(1, "unable to set bridge flags");
    558 }
    559 
    560 static void
    561 cmd_add(const struct command *cmd, int sock, const char *bridge,
    562     char **argv)
    563 {
    564 	struct ifbreq req;
    565 
    566 	memset(&req, 0, sizeof(req));
    567 
    568 	strlcpy(req.ifbr_ifsname, argv[0], sizeof(req.ifbr_ifsname));
    569 	if (do_cmd(sock, bridge, BRDGADD, &req, sizeof(req), 1) < 0)
    570 		err(1, "%s %s", cmd->cmd_keyword, argv[0]);
    571 }
    572 
    573 static void
    574 cmd_delete(const struct command *cmd, int sock, const char *bridge,
    575     char **argv)
    576 {
    577 	struct ifbreq req;
    578 
    579 	memset(&req, 0, sizeof(req));
    580 	strlcpy(req.ifbr_ifsname, argv[0], sizeof(req.ifbr_ifsname));
    581 	if (do_cmd(sock, bridge, BRDGDEL, &req, sizeof(req), 1) < 0)
    582 		err(1, "%s %s", cmd->cmd_keyword, argv[0]);
    583 }
    584 
    585 static void
    586 cmd_up(const struct command *cmd, int sock, const char *bridge,
    587     char **argv)
    588 {
    589 
    590 	do_ifflag(sock, bridge, IFF_UP, 1);
    591 }
    592 
    593 static void
    594 cmd_down(const struct command *cmd, int sock, const char *bridge,
    595     char **argv)
    596 {
    597 
    598 	do_ifflag(sock, bridge, IFF_UP, 0);
    599 }
    600 
    601 static void
    602 cmd_discover(const struct command *cmd, int sock, const char *bridge,
    603     char **argv)
    604 {
    605 
    606 	do_bridgeflag(sock, bridge, argv[0], IFBIF_DISCOVER,
    607 	    (cmd->cmd_flags & CMD_INVERT) ? 0 : 1);
    608 }
    609 
    610 static void
    611 cmd_learn(const struct command *cmd, int sock, const char *bridge,
    612     char **argv)
    613 {
    614 
    615 	do_bridgeflag(sock, bridge, argv[0], IFBIF_LEARNING,
    616 	    (cmd->cmd_flags & CMD_INVERT) ? 0 : 1);
    617 }
    618 
    619 static void
    620 cmd_stp(const struct command *cmd, int sock, const char *bridge,
    621     char **argv)
    622 {
    623 
    624 	do_bridgeflag(sock, bridge, argv[0], IFBIF_STP,
    625 	    (cmd->cmd_flags & CMD_INVERT) ? 0 : 1);
    626 }
    627 
    628 static void
    629 cmd_flush(const struct command *cmd, int sock, const char *bridge,
    630     char **argv)
    631 {
    632 	struct ifbreq req;
    633 
    634 	memset(&req, 0, sizeof(req));
    635 	req.ifbr_ifsflags = IFBF_FLUSHDYN;
    636 	if (do_cmd(sock, bridge, BRDGFLUSH, &req, sizeof(req), 1) < 0)
    637 		err(1, "%s", cmd->cmd_keyword);
    638 }
    639 
    640 static void
    641 cmd_flushall(const struct command *cmd, int sock, const char *bridge,
    642     char **argv)
    643 {
    644 	struct ifbreq req;
    645 
    646 	memset(&req, 0, sizeof(req));
    647 	req.ifbr_ifsflags = IFBF_FLUSHALL;
    648 	if (do_cmd(sock, bridge, BRDGFLUSH, &req, sizeof(req), 1) < 0)
    649 		err(1, "%s", cmd->cmd_keyword);
    650 }
    651 
    652 static void
    653 cmd_static(const struct command *cmd, int sock, const char *bridge,
    654     char **argv)
    655 {
    656 	struct ifbareq req;
    657 	struct ether_addr *ea;
    658 
    659 	memset(&req, 0, sizeof(req));
    660 	strlcpy(req.ifba_ifsname, argv[0], sizeof(req.ifba_ifsname));
    661 
    662 	ea = ether_aton(argv[1]);
    663 	if (ea == NULL)
    664 		errx(1, "%s: invalid address: %s", cmd->cmd_keyword, argv[1]);
    665 
    666 	memcpy(req.ifba_dst, ea->ether_addr_octet, sizeof(req.ifba_dst));
    667 	req.ifba_flags = IFBAF_STATIC;
    668 
    669 	if (do_cmd(sock, bridge, BRDGSADDR, &req, sizeof(req), 1) < 0)
    670 		err(1, "%s %s %s", cmd->cmd_keyword, argv[0], argv[1]);
    671 }
    672 
    673 static void
    674 cmd_deladdr(const struct command *cmd, int sock, const char *bridge,
    675     char **argv)
    676 {
    677 	struct ifbareq req;
    678 	struct ether_addr *ea;
    679 
    680 	memset(&req, 0, sizeof(req));
    681 
    682 	ea = ether_aton(argv[0]);
    683 	if (ea == NULL)
    684 		errx(1, "%s: invalid address: %s", cmd->cmd_keyword, argv[0]);
    685 
    686 	memcpy(req.ifba_dst, ea->ether_addr_octet, sizeof(req.ifba_dst));
    687 
    688 	if (do_cmd(sock, bridge, BRDGDADDR, &req, sizeof(req), 1) < 0)
    689 		err(1, "%s %s", cmd->cmd_keyword, argv[0]);
    690 }
    691 
    692 static void
    693 cmd_addr(const struct command *cmd, int sock, const char *bridge,
    694     char **argv)
    695 {
    696 
    697 	show_addresses(sock, bridge, "\t");
    698 }
    699 
    700 static void
    701 cmd_maxaddr(const struct command *cmd, int sock, const char *bridge,
    702     char **argv)
    703 {
    704 	struct ifbrparam param;
    705 	u_long val;
    706 
    707 	if (get_val(argv[0], &val) < 0 || (val & ~0xffffffff) != 0)
    708 		errx(1, "%s: invalid value: %s", cmd->cmd_keyword, argv[0]);
    709 
    710 	param.ifbrp_csize = val & 0xffffffff;
    711 
    712 	if (do_cmd(sock, bridge, BRDGSCACHE, &param, sizeof(param), 1) < 0)
    713 		err(1, "%s %s", cmd->cmd_keyword, argv[0]);
    714 }
    715 
    716 static void
    717 cmd_hellotime(const struct command *cmd, int sock, const char *bridge,
    718     char **argv)
    719 {
    720 	struct ifbrparam param;
    721 	u_long val;
    722 
    723 	if (get_val(argv[0], &val) < 0 || (val & ~0xff) != 0)
    724 		errx(1, "%s: invalid value: %s", cmd->cmd_keyword, argv[0]);
    725 
    726 	param.ifbrp_hellotime = val & 0xff;
    727 
    728 	if (do_cmd(sock, bridge, BRDGSHT, &param, sizeof(param), 1) < 0)
    729 		err(1, "%s %s", cmd->cmd_keyword, argv[0]);
    730 }
    731 
    732 static void
    733 cmd_fwddelay(const struct command *cmd, int sock, const char *bridge,
    734     char **argv)
    735 {
    736 	struct ifbrparam param;
    737 	u_long val;
    738 
    739 	if (get_val(argv[0], &val) < 0 || (val & ~0xff) != 0)
    740 		errx(1, "%s: invalid value: %s", cmd->cmd_keyword, argv[0]);
    741 
    742 	param.ifbrp_fwddelay = val & 0xff;
    743 
    744 	if (do_cmd(sock, bridge, BRDGSFD, &param, sizeof(param), 1) < 0)
    745 		err(1, "%s %s", cmd->cmd_keyword, argv[0]);
    746 }
    747 
    748 static void
    749 cmd_maxage(const struct command *cmd, int sock, const char *bridge,
    750     char **argv)
    751 {
    752 	struct ifbrparam param;
    753 	u_long val;
    754 
    755 	if (get_val(argv[0], &val) < 0 || (val & ~0xff) != 0)
    756 		errx(1, "%s: invalid value: %s", cmd->cmd_keyword, argv[0]);
    757 
    758 	param.ifbrp_maxage = val & 0xff;
    759 
    760 	if (do_cmd(sock, bridge, BRDGSMA, &param, sizeof(param), 1) < 0)
    761 		err(1, "%s %s", cmd->cmd_keyword, argv[0]);
    762 }
    763 
    764 static void
    765 cmd_priority(const struct command *cmd, int sock, const char *bridge,
    766     char **argv)
    767 {
    768 	struct ifbrparam param;
    769 	u_long val;
    770 
    771 	if (get_val(argv[0], &val) < 0 || (val & ~0xffff) != 0)
    772 		errx(1, "%s: invalid value: %s", cmd->cmd_keyword, argv[0]);
    773 
    774 	param.ifbrp_prio = val & 0xffff;
    775 
    776 	if (do_cmd(sock, bridge, BRDGSPRI, &param, sizeof(param), 1) < 0)
    777 		err(1, "%s %s", cmd->cmd_keyword, argv[0]);
    778 }
    779 
    780 static void
    781 cmd_ifpriority(const struct command *cmd, int sock, const char *bridge,
    782     char **argv)
    783 {
    784 	struct ifbreq req;
    785 	u_long val;
    786 
    787 	memset(&req, 0, sizeof(req));
    788 
    789 	if (get_val(argv[1], &val) < 0 || (val & ~0xff) != 0)
    790 		errx(1, "%s: invalid value: %s", cmd->cmd_keyword, argv[1]);
    791 
    792 	strlcpy(req.ifbr_ifsname, argv[0], sizeof(req.ifbr_ifsname));
    793 	req.ifbr_priority = val & 0xff;
    794 
    795 	if (do_cmd(sock, bridge, BRDGSIFPRIO, &req, sizeof(req), 1) < 0)
    796 		err(1, "%s %s", cmd->cmd_keyword, argv[0]);
    797 }
    798 
    799 static void
    800 cmd_ifpathcost(const struct command *cmd, int sock, const char *bridge,
    801     char **argv)
    802 {
    803 	struct ifbreq req;
    804 	u_long val;
    805 
    806 	memset(&req, 0, sizeof(req));
    807 
    808 	if (get_val(argv[1], &val) < 0 || (val & ~0xff) != 0)
    809 		errx(1, "%s: invalid value: %s", cmd->cmd_keyword, argv[1]);
    810 
    811 	strlcpy(req.ifbr_ifsname, argv[0], sizeof(req.ifbr_ifsname));
    812 	req.ifbr_path_cost = val & 0xffff;
    813 
    814 	if (do_cmd(sock, bridge, BRDGSIFCOST, &req, sizeof(req), 1) < 0)
    815 		err(1, "%s %s", cmd->cmd_keyword, argv[0]);
    816 }
    817 
    818 static void
    819 cmd_timeout(const struct command *cmd, int sock, const char *bridge,
    820     char **argv)
    821 {
    822 	struct ifbrparam param;
    823 	u_long val;
    824 
    825 	if (get_val(argv[0], &val) < 0 || (val & ~0xffffffff) != 0)
    826 		errx(1, "%s: invalid value: %s", cmd->cmd_keyword, argv[0]);
    827 
    828 	param.ifbrp_ctime = val & 0xffffffff;
    829 
    830 	if (do_cmd(sock, bridge, BRDGSTO, &param, sizeof(param), 1) < 0)
    831 		err(1, "%s %s", cmd->cmd_keyword, argv[0]);
    832 }
    833 
    834 static void
    835 cmd_ipf(const struct command *cmd, int sock, const char *bridge,
    836     char **argv)
    837 {
    838         struct ifbrparam param;
    839 
    840         if (do_cmd(sock, bridge, BRDGGFILT, &param, sizeof(param), 0) < 0)
    841 		err(1, "%s", cmd->cmd_keyword);
    842 
    843         param.ifbrp_filter &= ~IFBF_FILT_USEIPF;
    844         param.ifbrp_filter |= (cmd->cmd_flags & CMD_INVERT) ? 0 : IFBF_FILT_USEIPF;
    845         if (do_cmd(sock, bridge, BRDGSFILT, &param, sizeof(param), 1) < 0)
    846 		err(1, "%s %x", cmd->cmd_keyword, param.ifbrp_filter);
    847 }
    848