2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
4 * Copyright (c) 2003 Ryan McBride. All rights reserved.
5 * Copyright (c) 2004 Max Laier. All rights reserved.
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
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.
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 #include <sys/param.h>
32 #include <sys/errno.h>
33 #include <sys/ioctl.h>
35 #include <sys/socket.h>
38 #include <netinet/in.h>
39 #include <net/pfvar.h>
40 #include <net/if_pfsync.h>
41 #include <net/route.h>
42 #include <arpa/inet.h>
53 void setpfsync_syncdev(const char *, int, int, const struct afswtch *);
54 void unsetpfsync_syncdev(const char *, int, int, const struct afswtch *);
55 void setpfsync_syncpeer(const char *, int, int, const struct afswtch *);
56 void unsetpfsync_syncpeer(const char *, int, int, const struct afswtch *);
57 void setpfsync_syncpeer(const char *, int, int, const struct afswtch *);
58 void setpfsync_maxupd(const char *, int, int, const struct afswtch *);
59 void setpfsync_defer(const char *, int, int, const struct afswtch *);
60 void pfsync_status(int);
63 pfsync_do_ioctl(int s, uint cmd, nvlist_t **nvl)
68 data = nvlist_pack(*nvl, &nvlen);
70 ifr.ifr_cap_nv.buffer = malloc(IFR_CAP_NV_MAXBUFSIZE);
71 memcpy(ifr.ifr_cap_nv.buffer, data, nvlen);
72 ifr.ifr_cap_nv.buf_length = IFR_CAP_NV_MAXBUFSIZE;
73 ifr.ifr_cap_nv.length = nvlen;
76 if (ioctl(s, cmd, (caddr_t)&ifr) == -1) {
77 free(ifr.ifr_cap_nv.buffer);
84 *nvl = nvlist_unpack(ifr.ifr_cap_nv.buffer, ifr.ifr_cap_nv.length, 0);
86 free(ifr.ifr_cap_nv.buffer);
90 free(ifr.ifr_cap_nv.buffer);
95 pfsync_sockaddr_to_syncpeer_nvlist(struct sockaddr_storage *sa)
99 nvl = nvlist_create(0);
104 switch (sa->ss_family) {
107 struct sockaddr_in *in = (struct sockaddr_in *)sa;
108 nvlist_add_number(nvl, "af", in->sin_family);
109 nvlist_add_binary(nvl, "address", in, sizeof(*in));
115 struct sockaddr_in6 *in6 = (struct sockaddr_in6 *)sa;
116 nvlist_add_number(nvl, "af", in6->sin6_family);
117 nvlist_add_binary(nvl, "address", in6, sizeof(*in6));
122 nvlist_add_number(nvl, "af", AF_UNSPEC);
123 nvlist_add_binary(nvl, "address", sa, sizeof(*sa));
131 pfsync_syncpeer_nvlist_to_sockaddr(const nvlist_t *nvl,
132 struct sockaddr_storage *sa)
136 if (!nvlist_exists_number(nvl, "af"))
138 if (!nvlist_exists_binary(nvl, "address"))
141 af = nvlist_get_number(nvl, "af");
146 struct sockaddr_in *in = (struct sockaddr_in *)sa;
148 const void *addr = nvlist_get_binary(nvl, "address", &len);
150 if (len != sizeof(*in))
153 memcpy(in, addr, sizeof(*in));
159 struct sockaddr_in6 *in6 = (struct sockaddr_in6 *)sa;
161 const void *addr = nvlist_get_binary(nvl, "address", &len);
162 if (len != sizeof(*in6))
165 memcpy(in6, addr, sizeof(*in6));
177 setpfsync_syncdev(const char *val, int d, int s, const struct afswtch *rafp)
179 nvlist_t *nvl = nvlist_create(0);
181 if (strlen(val) > IFNAMSIZ)
182 errx(1, "interface name %s is too long", val);
184 if (pfsync_do_ioctl(s, SIOCGETPFSYNCNV, &nvl) == -1)
185 err(1, "SIOCGETPFSYNCNV");
187 if (nvlist_exists_string(nvl, "syncdev"))
188 nvlist_free_string(nvl, "syncdev");
190 nvlist_add_string(nvl, "syncdev", val);
192 if (pfsync_do_ioctl(s, SIOCSETPFSYNCNV, &nvl) == -1)
193 err(1, "SIOCSETPFSYNCNV");
198 unsetpfsync_syncdev(const char *val, int d, int s, const struct afswtch *rafp)
200 nvlist_t *nvl = nvlist_create(0);
202 if (pfsync_do_ioctl(s, SIOCGETPFSYNCNV, &nvl) == -1)
203 err(1, "SIOCGETPFSYNCNV");
205 if (nvlist_exists_string(nvl, "syncdev"))
206 nvlist_free_string(nvl, "syncdev");
208 nvlist_add_string(nvl, "syncdev", "");
210 if (pfsync_do_ioctl(s, SIOCSETPFSYNCNV, &nvl) == -1)
211 err(1, "SIOCSETPFSYNCNV");
216 setpfsync_syncpeer(const char *val, int d, int s, const struct afswtch *rafp)
218 struct addrinfo *peerres;
219 struct sockaddr_storage addr;
222 nvlist_t *nvl = nvlist_create(0);
224 if (pfsync_do_ioctl(s, SIOCGETPFSYNCNV, &nvl) == -1)
225 err(1, "SIOCGETPFSYNCNV");
227 if ((ecode = getaddrinfo(val, NULL, NULL, &peerres)) != 0)
228 errx(1, "error in parsing address string: %s",
229 gai_strerror(ecode));
231 switch (peerres->ai_family) {
234 struct sockaddr_in *sin = (struct sockaddr_in *)
237 if (IN_MULTICAST(ntohl(sin->sin_addr.s_addr)))
238 errx(1, "syncpeer address cannot be multicast");
240 memcpy(&addr, sin, sizeof(*sin));
245 errx(1, "syncpeer address %s not supported", val);
248 if (nvlist_exists_nvlist(nvl, "syncpeer"))
249 nvlist_free_nvlist(nvl, "syncpeer");
251 nvlist_add_nvlist(nvl, "syncpeer",
252 pfsync_sockaddr_to_syncpeer_nvlist(&addr));
254 if (pfsync_do_ioctl(s, SIOCSETPFSYNCNV, &nvl) == -1)
255 err(1, "SIOCSETPFSYNCNV");
258 freeaddrinfo(peerres);
263 unsetpfsync_syncpeer(const char *val, int d, int s, const struct afswtch *rafp)
265 struct sockaddr_storage addr;
266 memset(&addr, 0, sizeof(addr));
268 nvlist_t *nvl = nvlist_create(0);
270 if (pfsync_do_ioctl(s, SIOCGETPFSYNCNV, &nvl) == -1)
271 err(1, "SIOCGETPFSYNCNV");
273 if (nvlist_exists_nvlist(nvl, "syncpeer"))
274 nvlist_free_nvlist(nvl, "syncpeer");
276 nvlist_add_nvlist(nvl, "syncpeer",
277 pfsync_sockaddr_to_syncpeer_nvlist(&addr));
279 if (pfsync_do_ioctl(s, SIOCSETPFSYNCNV, &nvl) == -1)
280 err(1, "SIOCSETPFSYNCNV");
287 setpfsync_maxupd(const char *val, int d, int s, const struct afswtch *rafp)
290 nvlist_t *nvl = nvlist_create(0);
292 maxupdates = atoi(val);
293 if ((maxupdates < 0) || (maxupdates > 255))
294 errx(1, "maxupd %s: out of range", val);
296 if (pfsync_do_ioctl(s, SIOCGETPFSYNCNV, &nvl) == -1)
297 err(1, "SIOCGETPFSYNCNV");
299 nvlist_free_number(nvl, "maxupdates");
300 nvlist_add_number(nvl, "maxupdates", maxupdates);
302 if (pfsync_do_ioctl(s, SIOCSETPFSYNCNV, &nvl) == -1)
303 err(1, "SIOCSETPFSYNCNV");
310 setpfsync_defer(const char *val, int d, int s, const struct afswtch *rafp)
312 nvlist_t *nvl = nvlist_create(0);
314 if (pfsync_do_ioctl(s, SIOCGETPFSYNCNV, &nvl) == -1)
315 err(1, "SIOCGETPFSYNCNV");
317 nvlist_free_number(nvl, "flags");
318 nvlist_add_number(nvl, "flags", d ? PFSYNCF_DEFER : 0);
320 if (pfsync_do_ioctl(s, SIOCSETPFSYNCNV, &nvl) == -1)
321 err(1, "SIOCSETPFSYNCNV");
330 char syncdev[IFNAMSIZ];
331 char syncpeer_str[NI_MAXHOST];
332 struct sockaddr_storage syncpeer;
337 nvl = nvlist_create(0);
339 if (pfsync_do_ioctl(s, SIOCGETPFSYNCNV, &nvl) == -1) {
344 memset((char *)&syncdev, 0, IFNAMSIZ);
345 if (nvlist_exists_string(nvl, "syncdev"))
346 strlcpy(syncdev, nvlist_get_string(nvl, "syncdev"),
348 if (nvlist_exists_number(nvl, "maxupdates"))
349 maxupdates = nvlist_get_number(nvl, "maxupdates");
350 if (nvlist_exists_number(nvl, "flags"))
351 flags = nvlist_get_number(nvl, "flags");
352 if (nvlist_exists_nvlist(nvl, "syncpeer")) {
353 pfsync_syncpeer_nvlist_to_sockaddr(nvlist_get_nvlist(nvl,
360 if (syncdev[0] != '\0' || syncpeer.ss_family != AF_UNSPEC)
363 if (syncdev[0] != '\0')
364 printf("syncdev: %s ", syncdev);
366 if (syncpeer.ss_family == AF_INET &&
367 ((struct sockaddr_in *)&syncpeer)->sin_addr.s_addr !=
368 htonl(INADDR_PFSYNC_GROUP)) {
370 struct sockaddr *syncpeer_sa =
371 (struct sockaddr *)&syncpeer;
372 if ((error = getnameinfo(syncpeer_sa, syncpeer_sa->sa_len,
373 syncpeer_str, sizeof(syncpeer_str), NULL, 0,
374 NI_NUMERICHOST)) != 0)
375 errx(1, "getnameinfo: %s", gai_strerror(error));
376 printf("syncpeer: %s ", syncpeer_str);
379 printf("maxupd: %d ", maxupdates);
380 printf("defer: %s\n", (flags & PFSYNCF_DEFER) ? "on" : "off");
381 printf("\tsyncok: %d\n", (flags & PFSYNCF_OK) ? 1 : 0);
384 static struct cmd pfsync_cmds[] = {
385 DEF_CMD_ARG("syncdev", setpfsync_syncdev),
386 DEF_CMD("-syncdev", 1, unsetpfsync_syncdev),
387 DEF_CMD_ARG("syncif", setpfsync_syncdev),
388 DEF_CMD("-syncif", 1, unsetpfsync_syncdev),
389 DEF_CMD_ARG("syncpeer", setpfsync_syncpeer),
390 DEF_CMD("-syncpeer", 1, unsetpfsync_syncpeer),
391 DEF_CMD_ARG("maxupd", setpfsync_maxupd),
392 DEF_CMD("defer", 1, setpfsync_defer),
393 DEF_CMD("-defer", 0, setpfsync_defer),
395 static struct afswtch af_pfsync = {
396 .af_name = "af_pfsync",
398 .af_other_status = pfsync_status,
401 static __constructor void
406 for (i = 0; i < nitems(pfsync_cmds); i++)
407 cmd_register(&pfsync_cmds[i]);
408 af_register(&af_pfsync);