Bug Summary

File:src/sbin/ifconfig/brconfig.c
Warning:line 851, column 2
Value stored to 'ifrp' is never read

Annotated Source Code

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clang -cc1 -cc1 -triple amd64-unknown-openbsd7.4 -analyze -disable-free -clear-ast-before-backend -disable-llvm-verifier -discard-value-names -main-file-name brconfig.c -analyzer-checker=core -analyzer-checker=apiModeling -analyzer-checker=unix -analyzer-checker=deadcode -analyzer-checker=security.insecureAPI.UncheckedReturn -analyzer-checker=security.insecureAPI.getpw -analyzer-checker=security.insecureAPI.gets -analyzer-checker=security.insecureAPI.mktemp -analyzer-checker=security.insecureAPI.mkstemp -analyzer-checker=security.insecureAPI.vfork -analyzer-checker=nullability.NullPassedToNonnull -analyzer-checker=nullability.NullReturnedFromNonnull -analyzer-output plist -w -setup-static-analyzer -mrelocation-model pic -pic-level 1 -pic-is-pie -mframe-pointer=all -relaxed-aliasing -ffp-contract=on -fno-rounding-math -mconstructor-aliases -funwind-tables=2 -target-cpu x86-64 -target-feature +retpoline-indirect-calls -target-feature +retpoline-indirect-branches -tune-cpu generic -debugger-tuning=gdb -fcoverage-compilation-dir=/usr/src/sbin/ifconfig/obj -resource-dir /usr/local/llvm16/lib/clang/16 -internal-isystem /usr/local/llvm16/lib/clang/16/include -internal-externc-isystem /usr/include -O2 -fdebug-compilation-dir=/usr/src/sbin/ifconfig/obj -ferror-limit 19 -fwrapv -D_RET_PROTECTOR -ret-protector -fcf-protection=branch -fno-jump-tables -fgnuc-version=4.2.1 -vectorize-loops -vectorize-slp -fno-builtin-malloc -fno-builtin-calloc -fno-builtin-realloc -fno-builtin-valloc -fno-builtin-free -fno-builtin-strdup -fno-builtin-strndup -analyzer-output=html -faddrsig -D__GCC_HAVE_DWARF2_CFI_ASM=1 -o /home/ben/Projects/scan/2024-01-11-140451-98009-1 -x c /usr/src/sbin/ifconfig/brconfig.c
1/* $OpenBSD: brconfig.c,v 1.32 2023/11/23 03:38:34 dlg Exp $ */
2
3/*
4 * Copyright (c) 1999, 2000 Jason L. Wright (jason@thought.net)
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
18 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
19 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
20 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
21 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
22 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
24 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
25 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26 * POSSIBILITY OF SUCH DAMAGE.
27 */
28
29#ifndef SMALL
30
31#include <stdio.h>
32#include <sys/types.h>
33#include <sys/stdint.h>
34#include <unistd.h>
35#include <stdlib.h>
36#include <sys/socket.h>
37#include <sys/ioctl.h>
38#include <net/if.h>
39#include <netinet/in.h>
40#include <netinet/if_ether.h>
41#include <net/if_bridge.h>
42#include <netdb.h>
43#include <string.h>
44#include <err.h>
45#include <errno(*__errno()).h>
46#include <getopt.h>
47#include <limits.h>
48#include <arpa/inet.h>
49
50#include "ifconfig.h"
51
52void bridge_ifsetflag(const char *, u_int32_t);
53void bridge_ifclrflag(const char *, u_int32_t);
54
55void bridge_list(char *);
56void bridge_cfg(const char *);
57void bridge_badrule(int, char **, int);
58void bridge_showrule(struct ifbrlreq *);
59int bridge_arprule(struct ifbrlreq *, int *, char ***);
60
61#define IFBAFBITS"\020\1STATIC" "\020\1STATIC"
62#define IFBIFBITS"\020\1LEARNING\2DISCOVER\3BLOCKNONIP\4STP\5EDGE\6AUTOEDGE\7PTP\10AUTOPTP\11SPAN\15LOCAL" \
63"\020\1LEARNING\2DISCOVER\3BLOCKNONIP\4STP\5EDGE\6AUTOEDGE\7PTP\10AUTOPTP\11SPAN\15LOCAL"
64
65#define PV2ID(pv, epri, eaddr)do { epri = pv >> 48; eaddr[0] = pv >> 40; eaddr[
1] = pv >> 32; eaddr[2] = pv >> 24; eaddr[3] = pv
>> 16; eaddr[4] = pv >> 8; eaddr[5] = pv >>
0; } while (0)
do { \
66 epri = pv >> 48; \
67 eaddr[0] = pv >> 40; \
68 eaddr[1] = pv >> 32; \
69 eaddr[2] = pv >> 24; \
70 eaddr[3] = pv >> 16; \
71 eaddr[4] = pv >> 8; \
72 eaddr[5] = pv >> 0; \
73} while (0)
74
75char *stpstates[] = {
76 "disabled",
77 "listening",
78 "learning",
79 "forwarding",
80 "blocking",
81 "discarding"
82};
83char *stpproto[] = {
84 "stp",
85 "(none)",
86 "rstp",
87};
88char *stproles[] = {
89 "disabled",
90 "root",
91 "designated",
92 "alternate",
93 "backup"
94};
95
96
97void
98setdiscover(const char *val, int d)
99{
100 bridge_ifsetflag(val, IFBIF_DISCOVER0x0002);
101}
102
103void
104unsetdiscover(const char *val, int d)
105{
106 bridge_ifclrflag(val, IFBIF_DISCOVER0x0002);
107}
108
109void
110setblocknonip(const char *val, int d)
111{
112 bridge_ifsetflag(val, IFBIF_BLOCKNONIP0x0004);
113}
114
115void
116unsetblocknonip(const char *val, int d)
117{
118 bridge_ifclrflag(val, IFBIF_BLOCKNONIP0x0004);
119}
120
121void
122setlearn(const char *val, int d)
123{
124 bridge_ifsetflag(val, IFBIF_LEARNING0x0001);
125}
126
127void
128unsetlearn(const char *val, int d)
129{
130 bridge_ifclrflag(val, IFBIF_LEARNING0x0001);
131}
132
133void
134setstp(const char *val, int d)
135{
136 bridge_ifsetflag(val, IFBIF_STP0x0008);
137}
138
139void
140unsetstp(const char *val, int d)
141{
142 bridge_ifclrflag(val, IFBIF_STP0x0008);
143}
144
145void
146setedge(const char *val, int d)
147{
148 bridge_ifsetflag(val, IFBIF_BSTP_EDGE0x0010);
149}
150
151void
152unsetedge(const char *val, int d)
153{
154 bridge_ifclrflag(val, IFBIF_BSTP_EDGE0x0010);
155}
156
157void
158setautoedge(const char *val, int d)
159{
160 bridge_ifsetflag(val, IFBIF_BSTP_AUTOEDGE0x0020);
161}
162
163void
164unsetautoedge(const char *val, int d)
165{
166 bridge_ifclrflag(val, IFBIF_BSTP_AUTOEDGE0x0020);
167}
168
169void
170setptp(const char *val, int d)
171{
172 bridge_ifsetflag(val, IFBIF_BSTP_PTP0x0040);
173}
174
175void
176unsetptp(const char *val, int d)
177{
178 bridge_ifclrflag(val, IFBIF_BSTP_PTP0x0040);
179}
180
181void
182setautoptp(const char *val, int d)
183{
184 bridge_ifsetflag(val, IFBIF_BSTP_AUTOPTP0x0080);
185}
186
187void
188unsetautoptp(const char *val, int d)
189{
190 bridge_ifclrflag(val, IFBIF_BSTP_AUTOPTP0x0080);
191}
192
193void
194addlocal(const char *ifsname, int d)
195{
196 struct ifbreq breq;
197
198 if (strncmp(ifsname, "vether", (sizeof("vether") - 1)) != 0)
199 errx(1, "only vether can be local interface");
200
201 /* Add local */
202 strlcpy(breq.ifbr_name, ifname, sizeof(breq.ifbr_name));
203 strlcpy(breq.ifbr_ifsname, ifsname, sizeof(breq.ifbr_ifsname));
204 if (ioctl(sock, SIOCBRDGADDL((unsigned long)0x80000000 | ((sizeof(struct ifbreq) & 0x1fff
) << 16) | ((('i')) << 8) | ((73)))
, (caddr_t)&breq) == -1) {
205 if (errno(*__errno()) == EEXIST17)
206 return;
207 else
208 err(1, "%s: ioctl SIOCBRDGADDL %s", ifname, ifsname);
209 }
210}
211
212void
213bridge_ifsetflag(const char *ifsname, u_int32_t flag)
214{
215 struct ifbreq req;
216
217 strlcpy(req.ifbr_name, ifname, sizeof(req.ifbr_name));
218 strlcpy(req.ifbr_ifsname, ifsname, sizeof(req.ifbr_ifsname));
219 if (ioctl(sock, SIOCBRDGGIFFLGS(((unsigned long)0x80000000|(unsigned long)0x40000000) | ((sizeof
(struct ifbreq) & 0x1fff) << 16) | ((('i')) <<
8) | ((62)))
, (caddr_t)&req) == -1)
220 err(1, "%s: ioctl SIOCBRDGGIFFLGS %s", ifname, ifsname);
221
222 req.ifbr_ifsflags |= flag & ~IFBIF_RO_MASK0x0f00;
223
224 if (ioctl(sock, SIOCBRDGSIFFLGS((unsigned long)0x80000000 | ((sizeof(struct ifbreq) & 0x1fff
) << 16) | ((('i')) << 8) | ((63)))
, (caddr_t)&req) == -1)
225 err(1, "%s: ioctl SIOCBRDGSIFFLGS %s", ifname, ifsname);
226}
227
228void
229bridge_ifclrflag(const char *ifsname, u_int32_t flag)
230{
231 struct ifbreq req;
232
233 strlcpy(req.ifbr_name, ifname, sizeof(req.ifbr_name));
234 strlcpy(req.ifbr_ifsname, ifsname, sizeof(req.ifbr_ifsname));
235
236 if (ioctl(sock, SIOCBRDGGIFFLGS(((unsigned long)0x80000000|(unsigned long)0x40000000) | ((sizeof
(struct ifbreq) & 0x1fff) << 16) | ((('i')) <<
8) | ((62)))
, (caddr_t)&req) == -1)
237 err(1, "%s: ioctl SIOCBRDGGIFFLGS %s", ifname, ifsname);
238
239 req.ifbr_ifsflags &= ~(flag | IFBIF_RO_MASK0x0f00);
240
241 if (ioctl(sock, SIOCBRDGSIFFLGS((unsigned long)0x80000000 | ((sizeof(struct ifbreq) & 0x1fff
) << 16) | ((('i')) << 8) | ((63)))
, (caddr_t)&req) == -1)
242 err(1, "%s: ioctl SIOCBRDGSIFFLGS %s", ifname, ifsname);
243}
244
245void
246bridge_flushall(const char *val, int p)
247{
248 struct ifbreq req;
249
250 strlcpy(req.ifbr_name, ifname, sizeof(req.ifbr_name));
251 req.ifbr_ifsflags = IFBF_FLUSHALL0x1;
252 if (ioctl(sock, SIOCBRDGFLUSH((unsigned long)0x80000000 | ((sizeof(struct ifbreq) & 0x1fff
) << 16) | ((('i')) << 8) | ((72)))
, &req) == -1)
253 err(1, "%s", ifname);
254}
255
256void
257bridge_flush(const char *val, int p)
258{
259 struct ifbreq req;
260
261 strlcpy(req.ifbr_name, ifname, sizeof(req.ifbr_name));
262 req.ifbr_ifsflags = IFBF_FLUSHDYN0x0;
263 if (ioctl(sock, SIOCBRDGFLUSH((unsigned long)0x80000000 | ((sizeof(struct ifbreq) & 0x1fff
) << 16) | ((('i')) << 8) | ((72)))
, &req) == -1)
264 err(1, "%s", ifname);
265}
266
267void
268bridge_cfg(const char *delim)
269{
270 struct ifbropreq ifbp;
271 u_int16_t pri;
272 u_int8_t ht, fd, ma, hc, proto;
273 u_int8_t lladdr[ETHER_ADDR_LEN6];
274 u_int16_t bprio;
275
276 strlcpy(ifbp.ifbop_name, ifname, sizeof(ifbp.ifbop_name));
277 if (ioctl(sock, SIOCBRDGGPARAM(((unsigned long)0x80000000|(unsigned long)0x40000000) | ((sizeof
(struct ifbropreq) & 0x1fff) << 16) | ((('i')) <<
8) | ((88)))
, (caddr_t)&ifbp) == -1) {
278 if (errno(*__errno()) == ENOTTY25)
279 return;
280 err(1, "%s SIOCBRDGGPARAM", ifname);
281 }
282
283 printf("%s", delim);
284 pri = ifbp.ifbop_priority;
285 ht = ifbp.ifbop_hellotime;
286 fd = ifbp.ifbop_fwddelay;
287 ma = ifbp.ifbop_maxage;
288 hc = ifbp.ifbop_holdcount;
289 proto = ifbp.ifbop_protocol;
290
291 printf("priority %u hellotime %u fwddelay %u maxage %u "
292 "holdcnt %u proto %s\n", pri, ht, fd, ma, hc, stpproto[proto]);
293
294 if (aflag)
295 return;
296
297 PV2ID(ifbp.ifbop_desg_bridge, bprio, lladdr)do { bprio = ifbp.ifbop_desg_bridge >> 48; lladdr[0] = ifbp
.ifbop_desg_bridge >> 40; lladdr[1] = ifbp.ifbop_desg_bridge
>> 32; lladdr[2] = ifbp.ifbop_desg_bridge >> 24;
lladdr[3] = ifbp.ifbop_desg_bridge >> 16; lladdr[4] = ifbp
.ifbop_desg_bridge >> 8; lladdr[5] = ifbp.ifbop_desg_bridge
>> 0; } while (0)
;
298 printf("\tdesignated: id %s priority %u\n",
299 ether_ntoa((struct ether_addr *)lladdr), bprio);
300
301 if (ifbp.ifbop_root_bridge == ifbp.ifbop_desg_bridge)
302 return;
303
304 PV2ID(ifbp.ifbop_root_bridge, bprio, lladdr)do { bprio = ifbp.ifbop_root_bridge >> 48; lladdr[0] = ifbp
.ifbop_root_bridge >> 40; lladdr[1] = ifbp.ifbop_root_bridge
>> 32; lladdr[2] = ifbp.ifbop_root_bridge >> 24;
lladdr[3] = ifbp.ifbop_root_bridge >> 16; lladdr[4] = ifbp
.ifbop_root_bridge >> 8; lladdr[5] = ifbp.ifbop_root_bridge
>> 0; } while (0)
;
305 printf("\troot: id %s priority %u ifcost %u port %u\n",
306 ether_ntoa((struct ether_addr *)lladdr), bprio,
307 ifbp.ifbop_root_path_cost, ifbp.ifbop_root_port & 0xfff);
308}
309
310void
311bridge_list(char *delim)
312{
313 struct ifbreq *reqp;
314 struct ifbifconf bifc;
315 int i, len = 8192;
316 char buf[sizeof(reqp->ifbr_ifsname) + 1], *inbuf = NULL((void *)0), *inb;
317
318 while (1) {
319 bifc.ifbic_len = len;
320 inb = realloc(inbuf, len);
321 if (inb == NULL((void *)0))
322 err(1, "malloc");
323 bifc.ifbic_bufifbic_ifbicu.ifbicu_buf = inbuf = inb;
324 strlcpy(bifc.ifbic_name, ifname, sizeof(bifc.ifbic_name));
325 if (ioctl(sock, SIOCBRDGIFS(((unsigned long)0x80000000|(unsigned long)0x40000000) | ((sizeof
(struct ifbreq) & 0x1fff) << 16) | ((('i')) <<
8) | ((66)))
, &bifc) == -1) {
326 if (errno(*__errno()) == ENOTTY25)
327 return;
328 err(1, "%s SIOCBRDGIFS", ifname);
329 }
330 if (bifc.ifbic_len + sizeof(*reqp) < len)
331 break;
332 len *= 2;
333 }
334 for (i = 0; i < bifc.ifbic_len / sizeof(*reqp); i++) {
335 reqp = bifc.ifbic_reqifbic_ifbicu.ifbicu_req + i;
336 strlcpy(buf, reqp->ifbr_ifsname, sizeof(buf));
337 printf("%s%s ", delim, buf);
338 printb("flags", reqp->ifbr_ifsflags, IFBIFBITS"\020\1LEARNING\2DISCOVER\3BLOCKNONIP\4STP\5EDGE\6AUTOEDGE\7PTP\10AUTOPTP\11SPAN\15LOCAL");
339 printf("\n");
340 if (reqp->ifbr_ifsflags & IFBIF_SPAN0x0100)
341 continue;
342 printf("\t\t");
343 printf("port %u ifpriority %u ifcost %u",
344 reqp->ifbr_portno, reqp->ifbr_priority,
345 reqp->ifbr_path_cost);
346 if (reqp->ifbr_protected) {
347 int v;
348
349 v = ffs(reqp->ifbr_protected);
350 printf(" protected %u", v);
351 while (++v < 32) {
352 if ((1 << (v - 1)) & reqp->ifbr_protected)
353 printf(",%u", v);
354 }
355 }
356 if (reqp->ifbr_ifsflags & IFBIF_STP0x0008)
357 printf(" %s role %s",
358 stpstates[reqp->ifbr_state],
359 stproles[reqp->ifbr_role]);
360 printf("\n");
361 bridge_rules(buf, 1);
362 }
363 free(bifc.ifbic_bufifbic_ifbicu.ifbicu_buf);
364}
365
366void
367bridge_add(const char *ifn, int d)
368{
369 struct ifbreq req;
370
371 strlcpy(req.ifbr_name, ifname, sizeof(req.ifbr_name));
372 strlcpy(req.ifbr_ifsname, ifn, sizeof(req.ifbr_ifsname));
373 if (ioctl(sock, SIOCBRDGADD((unsigned long)0x80000000 | ((sizeof(struct ifbreq) & 0x1fff
) << 16) | ((('i')) << 8) | ((60)))
, &req) == -1) {
374 if (errno(*__errno()) == EEXIST17)
375 return;
376 err(1, "%s: %s", ifname, ifn);
377 }
378}
379
380void
381bridge_delete(const char *ifn, int d)
382{
383 struct ifbreq req;
384
385 strlcpy(req.ifbr_name, ifname, sizeof(req.ifbr_name));
386 strlcpy(req.ifbr_ifsname, ifn, sizeof(req.ifbr_ifsname));
387 if (ioctl(sock, SIOCBRDGDEL((unsigned long)0x80000000 | ((sizeof(struct ifbreq) & 0x1fff
) << 16) | ((('i')) << 8) | ((61)))
, &req) == -1)
388 err(1, "%s: %s", ifname, ifn);
389}
390
391void
392bridge_addspan(const char *ifn, int d)
393{
394 struct ifbreq req;
395
396 strlcpy(req.ifbr_name, ifname, sizeof(req.ifbr_name));
397 strlcpy(req.ifbr_ifsname, ifn, sizeof(req.ifbr_ifsname));
398 if (ioctl(sock, SIOCBRDGADDS((unsigned long)0x80000000 | ((sizeof(struct ifbreq) & 0x1fff
) << 16) | ((('i')) << 8) | ((65)))
, &req) == -1) {
399 if (errno(*__errno()) == EEXIST17)
400 return;
401 err(1, "%s: %s", ifname, ifn);
402 }
403}
404
405void
406bridge_delspan(const char *ifn, int d)
407{
408 struct ifbreq req;
409
410 strlcpy(req.ifbr_name, ifname, sizeof(req.ifbr_name));
411 strlcpy(req.ifbr_ifsname, ifn, sizeof(req.ifbr_ifsname));
412 if (ioctl(sock, SIOCBRDGDELS((unsigned long)0x80000000 | ((sizeof(struct ifbreq) & 0x1fff
) << 16) | ((('i')) << 8) | ((66)))
, &req) == -1)
413 err(1, "%s: %s", ifname, ifn);
414}
415
416void
417bridge_timeout(const char *arg, int d)
418{
419 struct ifbrparam bp;
420 const char *errstr;
421
422 bp.ifbrp_ctimeifbrp_ifbrpu.ifbrpu_ctime = strtonum(arg, 0, UINT32_MAX0xffffffffU, &errstr);
423 if (errstr)
424 err(1, "timeout %s is: %s", arg, errstr);
425
426 strlcpy(bp.ifbrp_name, ifname, sizeof(bp.ifbrp_name));
427 if (ioctl(sock, SIOCBRDGSTO((unsigned long)0x80000000 | ((sizeof(struct ifbrparam) &
0x1fff) << 16) | ((('i')) << 8) | ((69)))
, (caddr_t)&bp) == -1)
428 err(1, "%s", ifname);
429}
430
431void
432bridge_maxage(const char *arg, int d)
433{
434 struct ifbrparam bp;
435 const char *errstr;
436
437 bp.ifbrp_maxageifbrp_ifbrpu.ifbrpu_maxage = strtonum(arg, 0, UINT8_MAX0xff, &errstr);
438 if (errstr)
439 errx(1, "maxage %s is: %s", arg, errstr);
440
441 strlcpy(bp.ifbrp_name, ifname, sizeof(bp.ifbrp_name));
442 if (ioctl(sock, SIOCBRDGSMA((unsigned long)0x80000000 | ((sizeof(struct ifbrparam) &
0x1fff) << 16) | ((('i')) << 8) | ((83)))
, (caddr_t)&bp) == -1)
443 err(1, "%s", ifname);
444}
445
446void
447bridge_priority(const char *arg, int d)
448{
449 struct ifbrparam bp;
450 const char *errstr;
451
452 bp.ifbrp_prioifbrp_ifbrpu.ifbrpu_prio = strtonum(arg, 0, UINT16_MAX0xffff, &errstr);
453 if (errstr)
454 errx(1, "spanpriority %s is: %s", arg, errstr);
455
456 strlcpy(bp.ifbrp_name, ifname, sizeof(bp.ifbrp_name));
457 if (ioctl(sock, SIOCBRDGSPRI((unsigned long)0x80000000 | ((sizeof(struct ifbrparam) &
0x1fff) << 16) | ((('i')) << 8) | ((80)))
, (caddr_t)&bp) == -1)
458 err(1, "%s", ifname);
459}
460
461void
462bridge_protect(const char *ifsname, const char *val)
463{
464 struct ifbreq breq;
465 unsigned long v;
466 char *optlist, *str;
467 const char *errstr;
468
469 strlcpy(breq.ifbr_name, ifname, sizeof(breq.ifbr_name));
470 strlcpy(breq.ifbr_ifsname, ifsname, sizeof(breq.ifbr_ifsname));
471 breq.ifbr_protected = 0;
472
473 /* We muck with the string, so copy it. */
474 optlist = strdup(val);
475 if (optlist == NULL((void *)0))
476 err(1, "strdup");
477
478 str = strtok(optlist, ",");
479 while (str != NULL((void *)0)) {
480 v = strtonum(str, 1, 31, &errstr);
481 if (errstr)
482 err(1, "protected domain %s is: %s", str, errstr);
483 breq.ifbr_protected |= (1 << (v - 1));
484 str = strtok(NULL((void *)0), ",");
485 }
486
487 if (ioctl(sock, SIOCBRDGSIFPROT((unsigned long)0x80000000 | ((sizeof(struct ifbreq) & 0x1fff
) << 16) | ((('i')) << 8) | ((74)))
, (caddr_t)&breq) == -1)
488 err(1, "%s: %s", ifname, val);
489
490 free(optlist);
491}
492
493void
494bridge_unprotect(const char *ifsname, int d)
495{
496 struct ifbreq breq;
497
498 strlcpy(breq.ifbr_name, ifname, sizeof(breq.ifbr_name));
499 strlcpy(breq.ifbr_ifsname, ifsname, sizeof(breq.ifbr_ifsname));
500
501 breq.ifbr_protected = 0;
502
503 if (ioctl(sock, SIOCBRDGSIFPROT((unsigned long)0x80000000 | ((sizeof(struct ifbreq) & 0x1fff
) << 16) | ((('i')) << 8) | ((74)))
, (caddr_t)&breq) == -1)
504 err(1, "%s: %d", ifname, 0);
505}
506
507void
508bridge_proto(const char *arg, int d)
509{
510 struct ifbrparam bp;
511 int i, proto = -1;
512
513 for (i = 0; i <= BSTP_PROTO_MAX0x02; i++)
514 if (strcmp(arg, stpproto[i]) == 0) {
515 proto = i;
516 break;
517 }
518 if (proto == -1)
519 errx(1, "invalid arg for proto: %s", arg);
520
521 strlcpy(bp.ifbrp_name, ifname, sizeof(bp.ifbrp_name));
522 bp.ifbrp_prioifbrp_ifbrpu.ifbrpu_prio = proto;
523 if (ioctl(sock, SIOCBRDGSPROTO((unsigned long)0x80000000 | ((sizeof(struct ifbrparam) &
0x1fff) << 16) | ((('i')) << 8) | ((90)))
, (caddr_t)&bp) == -1)
524 err(1, "%s", ifname);
525}
526
527void
528bridge_fwddelay(const char *arg, int d)
529{
530 struct ifbrparam bp;
531 const char *errstr;
532
533 bp.ifbrp_fwddelayifbrp_ifbrpu.ifbrpu_fwddelay = strtonum(arg, 0, UINT8_MAX0xff, &errstr);
534 if (errstr)
535 errx(1, "fwddelay %s is: %s", arg, errstr);
536
537 strlcpy(bp.ifbrp_name, ifname, sizeof(bp.ifbrp_name));
538
539 if (ioctl(sock, SIOCBRDGSFD((unsigned long)0x80000000 | ((sizeof(struct ifbrparam) &
0x1fff) << 16) | ((('i')) << 8) | ((82)))
, (caddr_t)&bp) == -1)
540 err(1, "%s", ifname);
541}
542
543void
544bridge_hellotime(const char *arg, int d)
545{
546 struct ifbrparam bp;
547 const char *errstr;
548
549 bp.ifbrp_hellotimeifbrp_ifbrpu.ifbrpu_hellotime = strtonum(arg, 0, UINT8_MAX0xff, &errstr);
550 if (errstr)
551 errx(1, "hellotime %s is: %s", arg, errstr);
552
553 strlcpy(bp.ifbrp_name, ifname, sizeof(bp.ifbrp_name));
554
555 if (ioctl(sock, SIOCBRDGSHT((unsigned long)0x80000000 | ((sizeof(struct ifbrparam) &
0x1fff) << 16) | ((('i')) << 8) | ((81)))
, (caddr_t)&bp) == -1)
556 err(1, "%s", ifname);
557}
558
559void
560bridge_maxaddr(const char *arg, int d)
561{
562 struct ifbrparam bp;
563 const char *errstr;
564
565 bp.ifbrp_csizeifbrp_ifbrpu.ifbrpu_csize = strtonum(arg, 0, UINT32_MAX0xffffffffU, &errstr);
566 if (errstr)
567 errx(1, "maxaddr %s is: %s", arg, errstr);
568
569 strlcpy(bp.ifbrp_name, ifname, sizeof(bp.ifbrp_name));
570 if (ioctl(sock, SIOCBRDGSCACHE((unsigned long)0x80000000 | ((sizeof(struct ifbrparam) &
0x1fff) << 16) | ((('i')) << 8) | ((64)))
, (caddr_t)&bp) == -1)
571 err(1, "%s", ifname);
572}
573
574void
575bridge_deladdr(const char *addr, int d)
576{
577 struct ifbareq ifba;
578 struct ether_addr *ea;
579
580 strlcpy(ifba.ifba_name, ifname, sizeof(ifba.ifba_name));
581 ea = ether_aton(addr);
582 if (ea == NULL((void *)0))
583 err(1, "Invalid address: %s", addr);
584
585 bcopy(ea, &ifba.ifba_dst, sizeof(struct ether_addr));
586
587 if (ioctl(sock, SIOCBRDGDADDR((unsigned long)0x80000000 | ((sizeof(struct ifbareq) & 0x1fff
) << 16) | ((('i')) << 8) | ((71)))
, &ifba) == -1)
588 err(1, "%s: %s", ifname, addr);
589}
590
591void
592bridge_ifprio(const char *ifsname, const char *val)
593{
594 struct ifbreq breq;
595 const char *errstr;
596
597 breq.ifbr_priority = strtonum(val, 0, UINT8_MAX0xff, &errstr);
598 if (errstr)
599 errx(1, "ifpriority %s is: %s", val, errstr);
600
601 strlcpy(breq.ifbr_name, ifname, sizeof(breq.ifbr_name));
602 strlcpy(breq.ifbr_ifsname, ifsname, sizeof(breq.ifbr_ifsname));
603
604 if (ioctl(sock, SIOCBRDGSIFPRIO((unsigned long)0x80000000 | ((sizeof(struct ifbreq) & 0x1fff
) << 16) | ((('i')) << 8) | ((84)))
, (caddr_t)&breq) == -1)
605 err(1, "%s: %s", ifname, val);
606}
607
608void
609bridge_ifcost(const char *ifsname, const char *val)
610{
611 struct ifbreq breq;
612 const char *errstr;
613
614 breq.ifbr_path_cost = strtonum(val, 0, UINT32_MAX0xffffffffU, &errstr);
615 if (errstr)
616 errx(1, "ifcost %s is: %s", val, errstr);
617
618 strlcpy(breq.ifbr_name, ifname, sizeof(breq.ifbr_name));
619 strlcpy(breq.ifbr_ifsname, ifsname, sizeof(breq.ifbr_ifsname));
620
621 if (ioctl(sock, SIOCBRDGSIFCOST((unsigned long)0x80000000 | ((sizeof(struct ifbreq) & 0x1fff
) << 16) | ((('i')) << 8) | ((85)))
, (caddr_t)&breq) == -1)
622 err(1, "%s: %s", ifname, val);
623}
624
625void
626bridge_noifcost(const char *ifsname, int d)
627{
628 struct ifbreq breq;
629
630 strlcpy(breq.ifbr_name, ifname, sizeof(breq.ifbr_name));
631 strlcpy(breq.ifbr_ifsname, ifsname, sizeof(breq.ifbr_ifsname));
632
633 breq.ifbr_path_cost = 0;
634
635 if (ioctl(sock, SIOCBRDGSIFCOST((unsigned long)0x80000000 | ((sizeof(struct ifbreq) & 0x1fff
) << 16) | ((('i')) << 8) | ((85)))
, (caddr_t)&breq) == -1)
636 err(1, "%s", ifname);
637}
638
639void
640bridge_addaddr(const char *ifsname, const char *addr)
641{
642 struct ifbareq ifba;
643 struct ether_addr *ea;
644
645 strlcpy(ifba.ifba_name, ifname, sizeof(ifba.ifba_name));
646 strlcpy(ifba.ifba_ifsname, ifsname, sizeof(ifba.ifba_ifsname));
647
648 ea = ether_aton(addr);
649 if (ea == NULL((void *)0))
650 errx(1, "Invalid address: %s", addr);
651
652 bcopy(ea, &ifba.ifba_dst, sizeof(struct ether_addr));
653 ifba.ifba_flags = IFBAF_STATIC0x01;
654
655 if (ioctl(sock, SIOCBRDGSADDR(((unsigned long)0x80000000|(unsigned long)0x40000000) | ((sizeof
(struct ifbareq) & 0x1fff) << 16) | ((('i')) <<
8) | ((68)))
, &ifba) == -1)
656 err(1, "%s: %s", ifname, addr);
657}
658
659void
660bridge_addendpoint(const char *endpoint, const char *addr)
661{
662 struct ifbareq ifba;
663 struct ether_addr *ea;
664 struct addrinfo *res;
665 int ecode;
666
667 /* should we handle ports? */
668 ecode = getaddrinfo(endpoint, NULL((void *)0), NULL((void *)0), &res);
669 if (ecode != 0) {
670 errx(1, "%s endpoint %s: %s", ifname, endpoint,
671 gai_strerror(ecode));
672 }
673 if (res->ai_addrlen > sizeof(ifba.ifba_dstsa))
674 errx(1, "%s: addrlen > dstsa", __func__);
675
676 ea = ether_aton(addr);
677 if (ea == NULL((void *)0)) {
678 errx(1, "%s endpoint %s %s: invalid Ethernet address",
679 ifname, endpoint, addr);
680 }
681
682 memset(&ifba, 0, sizeof(ifba));
683 strlcpy(ifba.ifba_name, ifname, sizeof(ifba.ifba_name));
684 strlcpy(ifba.ifba_ifsname, ifname, sizeof(ifba.ifba_ifsname));
685 memcpy(&ifba.ifba_dst, ea, sizeof(struct ether_addr));
686 memcpy(&ifba.ifba_dstsa, res->ai_addr, res->ai_addrlen);
687 ifba.ifba_flags = IFBAF_STATIC0x01;
688
689 freeaddrinfo(res);
690
691 if (ioctl(sock, SIOCBRDGSADDR(((unsigned long)0x80000000|(unsigned long)0x40000000) | ((sizeof
(struct ifbareq) & 0x1fff) << 16) | ((('i')) <<
8) | ((68)))
, &ifba) == -1)
692 err(1, "%s endpoint %s %s", ifname, endpoint, addr);
693}
694
695void
696bridge_addrs(const char *delim, int d)
697{
698 char dstaddr[NI_MAXHOST256];
699 char dstport[NI_MAXSERV32];
700 const int niflag = NI_NUMERICHOST1|NI_DGRAM16;
701 struct ifbaconf ifbac;
702 struct ifbareq *ifba;
703 char *inbuf = NULL((void *)0), buf[sizeof(ifba->ifba_ifsname) + 1], *inb;
704 struct sockaddr *sa;
705 int i, len = 8192;
706
707 /* ifconfig will call us with the argv of the command */
708 if (strcmp(delim, "addr") == 0)
709 delim = "";
710
711 while (1) {
712 ifbac.ifbac_len = len;
713 inb = realloc(inbuf, len);
714 if (inb == NULL((void *)0))
715 err(1, "malloc");
716 ifbac.ifbac_bufifbac_ifbacu.ifbacu_buf = inbuf = inb;
717 strlcpy(ifbac.ifbac_name, ifname, sizeof(ifbac.ifbac_name));
718 if (ioctl(sock, SIOCBRDGRTS(((unsigned long)0x80000000|(unsigned long)0x40000000) | ((sizeof
(struct ifbaconf) & 0x1fff) << 16) | ((('i')) <<
8) | ((67)))
, &ifbac) == -1) {
719 if (errno(*__errno()) == ENETDOWN50)
720 return;
721 err(1, "%s", ifname);
722 }
723 if (ifbac.ifbac_len + sizeof(*ifba) < len)
724 break;
725 len *= 2;
726 }
727
728 for (i = 0; i < ifbac.ifbac_len / sizeof(*ifba); i++) {
729 ifba = ifbac.ifbac_reqifbac_ifbacu.ifbacu_req + i;
730 strlcpy(buf, ifba->ifba_ifsname, sizeof(buf));
731 printf("%s%s %s %u ", delim, ether_ntoa(&ifba->ifba_dst),
732 buf, ifba->ifba_age);
733 sa = (struct sockaddr *)&ifba->ifba_dstsa;
734 printb("flags", ifba->ifba_flags, IFBAFBITS"\020\1STATIC");
735 if (sa->sa_family != AF_UNSPEC0 &&
736 getnameinfo(sa, sa->sa_len,
737 dstaddr, sizeof(dstaddr),
738 dstport, sizeof(dstport), niflag) == 0)
739 printf(" tunnel %s:%s", dstaddr, dstport);
740 printf("\n");
741 }
742 free(inbuf);
743}
744
745void
746bridge_holdcnt(const char *value, int d)
747{
748 struct ifbrparam bp;
749 const char *errstr;
750
751 bp.ifbrp_txhcifbrp_ifbrpu.ifbrpu_txhc = strtonum(value, 0, UINT8_MAX0xff, &errstr);
752 if (errstr)
753 err(1, "holdcnt %s is: %s", value, errstr);
754
755 strlcpy(bp.ifbrp_name, ifname, sizeof(bp.ifbrp_name));
756 if (ioctl(sock, SIOCBRDGSTXHC((unsigned long)0x80000000 | ((sizeof(struct ifbrparam) &
0x1fff) << 16) | ((('i')) << 8) | ((89)))
, (caddr_t)&bp) == -1)
757 err(1, "%s", ifname);
758}
759
760/*
761 * Check to make sure interface is really a bridge interface.
762 */
763int
764is_bridge()
765{
766 struct ifbaconf ifbac;
767
768 ifbac.ifbac_len = 0;
769 strlcpy(ifbac.ifbac_name, ifname, sizeof(ifbac.ifbac_name));
770 if (ioctl(sock, SIOCBRDGRTS(((unsigned long)0x80000000|(unsigned long)0x40000000) | ((sizeof
(struct ifbaconf) & 0x1fff) << 16) | ((('i')) <<
8) | ((67)))
, (caddr_t)&ifbac) == -1) {
771 if (errno(*__errno()) == ENETDOWN50)
772 return (1);
773 return (0);
774 }
775 return (1);
776}
777
778/* no tpmr(4) specific ioctls, name is enough if ifconfig.c:printif() passed */
779int
780is_tpmr(void)
781{
782 return (strncmp(ifname, "tpmr", sizeof("tpmr") - 1) == 0);
783}
784
785void
786bridge_status(void)
787{
788 struct ifbrparam bp1, bp2;
789
790 if (is_tpmr()) {
791 bridge_list("\t");
792 return;
793 }
794
795 if (!is_bridge())
796 return;
797
798 bridge_cfg("\t");
799 bridge_list("\t");
800
801 if (aflag && !ifaliases)
802 return;
803
804 strlcpy(bp1.ifbrp_name, ifname, sizeof(bp1.ifbrp_name));
805 if (ioctl(sock, SIOCBRDGGCACHE(((unsigned long)0x80000000|(unsigned long)0x40000000) | ((sizeof
(struct ifbrparam) & 0x1fff) << 16) | ((('i')) <<
8) | ((65)))
, (caddr_t)&bp1) == -1)
806 return;
807
808 strlcpy(bp2.ifbrp_name, ifname, sizeof(bp2.ifbrp_name));
809 if (ioctl(sock, SIOCBRDGGTO(((unsigned long)0x80000000|(unsigned long)0x40000000) | ((sizeof
(struct ifbrparam) & 0x1fff) << 16) | ((('i')) <<
8) | ((70)))
, (caddr_t)&bp2) == -1)
810 return;
811
812 printf("\tAddresses (max cache: %u, timeout: %u):\n",
813 bp1.ifbrp_csizeifbrp_ifbrpu.ifbrpu_csize, bp2.ifbrp_ctimeifbrp_ifbrpu.ifbrpu_ctime);
814
815 bridge_addrs("\t\t", 0);
816}
817
818void
819bridge_flushrule(const char *ifsname, int d)
820{
821 struct ifbrlreq req;
822
823 strlcpy(req.ifbr_name, ifname, sizeof(req.ifbr_name));
824 strlcpy(req.ifbr_ifsname, ifsname, sizeof(req.ifbr_ifsname));
825 if (ioctl(sock, SIOCBRDGFRL((unsigned long)0x80000000 | ((sizeof(struct ifbrlreq) & 0x1fff
) << 16) | ((('i')) << 8) | ((78)))
, &req) == -1)
826 err(1, "%s: %s", ifname, ifsname);
827}
828
829void
830bridge_rules(const char *ifsname, int usetab)
831{
832 char *inbuf = NULL((void *)0), *inb;
833 struct ifbrlconf ifc;
834 struct ifbrlreq *ifrp;
835 int len = 8192, i;
836
837 while (1) {
838 ifc.ifbrl_len = len;
839 inb = realloc(inbuf, len);
840 if (inb == NULL((void *)0))
841 err(1, "malloc");
842 ifc.ifbrl_bufifbrl_ifbrlu.ifbrlu_buf = inbuf = inb;
843 strlcpy(ifc.ifbrl_name, ifname, sizeof(ifc.ifbrl_name));
844 strlcpy(ifc.ifbrl_ifsname, ifsname, sizeof(ifc.ifbrl_ifsname));
845 if (ioctl(sock, SIOCBRDGGRL(((unsigned long)0x80000000|(unsigned long)0x40000000) | ((sizeof
(struct ifbrlconf) & 0x1fff) << 16) | ((('i')) <<
8) | ((79)))
, &ifc) == -1)
846 err(1, "ioctl(SIOCBRDGGRL)");
847 if (ifc.ifbrl_len + sizeof(*ifrp) < len)
848 break;
849 len *= 2;
850 }
851 ifrp = ifc.ifbrl_reqifbrl_ifbrlu.ifbrlu_req;
Value stored to 'ifrp' is never read
852 for (i = 0; i < ifc.ifbrl_len; i += sizeof(*ifrp)) {
853 ifrp = (struct ifbrlreq *)((caddr_t)ifc.ifbrl_reqifbrl_ifbrlu.ifbrlu_req + i);
854
855 if (usetab)
856 printf("\t");
857
858 bridge_showrule(ifrp);
859 }
860}
861
862void
863bridge_showrule(struct ifbrlreq *r)
864{
865 if (r->ifbr_action == BRL_ACTION_BLOCK0x01)
866 printf("block ");
867 else if (r->ifbr_action == BRL_ACTION_PASS0x02)
868 printf("pass ");
869 else
870 printf("[neither block nor pass?]\n");
871
872 if ((r->ifbr_flags & (BRL_FLAG_IN0x08 | BRL_FLAG_OUT0x04)) ==
873 (BRL_FLAG_IN0x08 | BRL_FLAG_OUT0x04))
874 printf("in/out ");
875 else if (r->ifbr_flags & BRL_FLAG_IN0x08)
876 printf("in ");
877 else if (r->ifbr_flags & BRL_FLAG_OUT0x04)
878 printf("out ");
879 else
880 printf("[neither in nor out?]\n");
881
882 printf("on %s", r->ifbr_ifsname);
883
884 if (r->ifbr_flags & BRL_FLAG_SRCVALID0x02)
885 printf(" src %s", ether_ntoa(&r->ifbr_src));
886 if (r->ifbr_flags & BRL_FLAG_DSTVALID0x01)
887 printf(" dst %s", ether_ntoa(&r->ifbr_dst));
888 if (r->ifbr_tagname[0])
889 printf(" tag %s", r->ifbr_tagname);
890
891 if (r->ifbr_arpf.brla_flags & BRLA_ARP0x01)
892 printf(" arp");
893 if (r->ifbr_arpf.brla_flags & BRLA_RARP0x02)
894 printf(" rarp");
895 if (r->ifbr_arpf.brla_op == ARPOP_REQUEST1 ||
896 r->ifbr_arpf.brla_op == ARPOP_REVREQUEST3)
897 printf(" request");
898 if (r->ifbr_arpf.brla_op == ARPOP_REPLY2 ||
899 r->ifbr_arpf.brla_op == ARPOP_REVREPLY4)
900 printf(" reply");
901 if (r->ifbr_arpf.brla_flags & BRLA_SHA0x10)
902 printf(" sha %s", ether_ntoa(&r->ifbr_arpf.brla_sha));
903 if (r->ifbr_arpf.brla_flags & BRLA_THA0x40)
904 printf(" tha %s", ether_ntoa(&r->ifbr_arpf.brla_tha));
905 if (r->ifbr_arpf.brla_flags & BRLA_SPA0x20)
906 printf(" spa %s", inet_ntoa(r->ifbr_arpf.brla_spa));
907 if (r->ifbr_arpf.brla_flags & BRLA_TPA0x80)
908 printf(" tpa %s", inet_ntoa(r->ifbr_arpf.brla_tpa));
909
910 printf("\n");
911}
912
913/*
914 * Parse a rule definition and send it upwards.
915 *
916 * Syntax:
917 * {block|pass} {in|out|in/out} on {ifs} [src {mac}] [dst {mac}]
918 */
919int
920bridge_rule(int targc, char **targv, int ln)
921{
922 char **argv = targv;
923 int argc = targc;
924 struct ifbrlreq rule;
925 struct ether_addr *ea, *dea;
926
927 if (argc == 0) {
928 warnx("invalid rule");
929 return (1);
930 }
931 bzero(&rule, sizeof(rule));
932 strlcpy(rule.ifbr_name, ifname, sizeof(rule.ifbr_name));
933
934 if (strcmp(argv[0], "block") == 0)
935 rule.ifbr_action = BRL_ACTION_BLOCK0x01;
936 else if (strcmp(argv[0], "pass") == 0)
937 rule.ifbr_action = BRL_ACTION_PASS0x02;
938 else
939 goto bad_rule;
940 argc--; argv++;
941
942 if (argc == 0) {
943 bridge_badrule(targc, targv, ln);
944 return (1);
945 }
946 if (strcmp(argv[0], "in") == 0)
947 rule.ifbr_flags |= BRL_FLAG_IN0x08;
948 else if (strcmp(argv[0], "out") == 0)
949 rule.ifbr_flags |= BRL_FLAG_OUT0x04;
950 else if (strcmp(argv[0], "in/out") == 0)
951 rule.ifbr_flags |= BRL_FLAG_IN0x08 | BRL_FLAG_OUT0x04;
952 else if (strcmp(argv[0], "on") == 0) {
953 rule.ifbr_flags |= BRL_FLAG_IN0x08 | BRL_FLAG_OUT0x04;
954 argc++; argv--;
955 } else
956 goto bad_rule;
957 argc--; argv++;
958
959 if (argc == 0 || strcmp(argv[0], "on"))
960 goto bad_rule;
961 argc--; argv++;
962
963 if (argc == 0)
964 goto bad_rule;
965 strlcpy(rule.ifbr_ifsname, argv[0], sizeof(rule.ifbr_ifsname));
966 argc--; argv++;
967
968 while (argc) {
969 dea = NULL((void *)0);
970 if (strcmp(argv[0], "dst") == 0) {
971 if (rule.ifbr_flags & BRL_FLAG_DSTVALID0x01)
972 goto bad_rule;
973 rule.ifbr_flags |= BRL_FLAG_DSTVALID0x01;
974 dea = &rule.ifbr_dst;
975 argc--; argv++;
976 } else if (strcmp(argv[0], "src") == 0) {
977 if (rule.ifbr_flags & BRL_FLAG_SRCVALID0x02)
978 goto bad_rule;
979 rule.ifbr_flags |= BRL_FLAG_SRCVALID0x02;
980 dea = &rule.ifbr_src;
981 argc--; argv++;
982 } else if (strcmp(argv[0], "tag") == 0) {
983 if (argc < 2) {
984 warnx("missing tag name");
985 goto bad_rule;
986 }
987 if (rule.ifbr_tagname[0]) {
988 warnx("tag already defined");
989 goto bad_rule;
990 }
991 argc--; argv++;
992 if (strlcpy(rule.ifbr_tagname, argv[0],
993 PF_TAG_NAME_SIZE64) > PF_TAG_NAME_SIZE64) {
994 warnx("tag name '%s' too long", argv[0]);
995 goto bad_rule;
996 }
997 argc--; argv++;
998 } else if (strcmp(argv[0], "arp") == 0) {
999 rule.ifbr_arpf.brla_flags |= BRLA_ARP0x01;
1000 argc--; argv++;
1001 if (bridge_arprule(&rule, &argc, &argv) == -1)
1002 goto bad_rule;
1003 } else if (strcmp(argv[0], "rarp") == 0) {
1004 rule.ifbr_arpf.brla_flags |= BRLA_RARP0x02;
1005 argc--; argv++;
1006 if (bridge_arprule(&rule, &argc, &argv) == -1)
1007 goto bad_rule;
1008 } else
1009 goto bad_rule;
1010
1011 if (dea != NULL((void *)0)) {
1012 if (argc == 0)
1013 goto bad_rule;
1014 ea = ether_aton(argv[0]);
1015 if (ea == NULL((void *)0)) {
1016 warnx("invalid address: %s", argv[0]);
1017 return (1);
1018 }
1019 bcopy(ea, dea, sizeof(*dea));
1020 argc--; argv++;
1021 }
1022 }
1023
1024 if (ioctl(sock, SIOCBRDGARL((unsigned long)0x80000000 | ((sizeof(struct ifbrlreq) & 0x1fff
) << 16) | ((('i')) << 8) | ((77)))
, &rule) == -1) {
1025 warn("%s", ifname);
1026 return (1);
1027 }
1028 return (0);
1029
1030bad_rule:
1031 bridge_badrule(targc, targv, ln);
1032 return (1);
1033}
1034
1035int
1036bridge_arprule(struct ifbrlreq *rule, int *argc, char ***argv)
1037{
1038 while (*argc) {
1039 struct ether_addr *ea, *dea = NULL((void *)0);
1040 struct in_addr ia, *dia = NULL((void *)0);
1041
1042 if (strcmp((*argv)[0], "request") == 0) {
1043 if (rule->ifbr_arpf.brla_flags & BRLA_ARP0x01)
1044 rule->ifbr_arpf.brla_op = ARPOP_REQUEST1;
1045 else if (rule->ifbr_arpf.brla_flags & BRLA_RARP0x02)
1046 rule->ifbr_arpf.brla_op = ARPOP_REVREQUEST3;
1047 else
1048 errx(1, "bridge_arprule: arp/rarp undefined");
1049 } else if (strcmp((*argv)[0], "reply") == 0) {
1050 if (rule->ifbr_arpf.brla_flags & BRLA_ARP0x01)
1051 rule->ifbr_arpf.brla_op = ARPOP_REPLY2;
1052 else if (rule->ifbr_arpf.brla_flags & BRLA_RARP0x02)
1053 rule->ifbr_arpf.brla_op = ARPOP_REVREPLY4;
1054 else
1055 errx(1, "bridge_arprule: arp/rarp undefined");
1056 } else if (strcmp((*argv)[0], "sha") == 0) {
1057 rule->ifbr_arpf.brla_flags |= BRLA_SHA0x10;
1058 dea = &rule->ifbr_arpf.brla_sha;
1059 } else if (strcmp((*argv)[0], "tha") == 0) {
1060 rule->ifbr_arpf.brla_flags |= BRLA_THA0x40;
1061 dea = &rule->ifbr_arpf.brla_tha;
1062 } else if (strcmp((*argv)[0], "spa") == 0) {
1063 rule->ifbr_arpf.brla_flags |= BRLA_SPA0x20;
1064 dia = &rule->ifbr_arpf.brla_spa;
1065 } else if (strcmp((*argv)[0], "tpa") == 0) {
1066 rule->ifbr_arpf.brla_flags |= BRLA_TPA0x80;
1067 dia = &rule->ifbr_arpf.brla_tpa;
1068 } else
1069 return (0);
1070
1071 (*argc)--; (*argv)++;
1072 if (dea != NULL((void *)0)) {
1073 if (*argc == 0)
1074 return (-1);
1075 ea = ether_aton((*argv)[0]);
1076 if (ea == NULL((void *)0)) {
1077 warnx("invalid address: %s", (*argv)[0]);
1078 return (-1);
1079 }
1080 bcopy(ea, dea, sizeof(*dea));
1081 (*argc)--; (*argv)++;
1082 }
1083 if (dia != NULL((void *)0)) {
1084 if (*argc == 0)
1085 return (-1);
1086 ia.s_addr = inet_addr((*argv)[0]);
1087 if (ia.s_addr == INADDR_NONE((u_int32_t)(0xffffffff))) {
1088 warnx("invalid address: %s", (*argv)[0]);
1089 return (-1);
1090 }
1091 bcopy(&ia, dia, sizeof(*dia));
1092 (*argc)--; (*argv)++;
1093 }
1094 }
1095 return (0);
1096}
1097
1098
1099#define MAXRULEWORDS32 32
1100
1101void
1102bridge_rulefile(const char *fname, int d)
1103{
1104 FILE *f;
1105 char *str, *argv[MAXRULEWORDS32], buf[1024];
1106 int ln = 0, argc = 0;
1107
1108 f = fopen(fname, "r");
1109 if (f == NULL((void *)0))
1110 err(1, "%s", fname);
1111
1112 while (fgets(buf, sizeof(buf), f) != NULL((void *)0)) {
1113 ln++;
1114 if (buf[0] == '#' || buf[0] == '\n')
1115 continue;
1116
1117 argc = 0;
1118 str = strtok(buf, "\n\t\r ");
1119 while (str != NULL((void *)0) && argc < MAXRULEWORDS32) {
1120 argv[argc++] = str;
1121 str = strtok(NULL((void *)0), "\n\t\r ");
1122 }
1123
1124 /* Rule is too long if there's more. */
1125 if (str != NULL((void *)0)) {
1126 warnx("invalid rule: %d: %s ...", ln, buf);
1127 continue;
1128 }
1129
1130 bridge_rule(argc, argv, ln);
1131 }
1132 fclose(f);
1133}
1134
1135void
1136bridge_badrule(int argc, char *argv[], int ln)
1137{
1138 extern const char *__progname;
1139 int i;
1140
1141 fprintf(stderr(&__sF[2]), "%s: invalid rule: ", __progname);
1142 if (ln != -1)
1143 fprintf(stderr(&__sF[2]), "%d: ", ln);
1144 for (i = 0; i < argc; i++)
1145 fprintf(stderr(&__sF[2]), "%s ", argv[i]);
1146 fprintf(stderr(&__sF[2]), "\n");
1147}
1148
1149#endif