1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause
3 *
4 * Copyright (c) 2023 Alexander V. Chernikov <melifaro@FreeBSD.org>
5 * Copyright (c) 2023 Rubicon Communications, LLC (Netgate)
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 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
26 * SUCH DAMAGE.
27 *
28 */
29 #include <sys/cdefs.h>
30 #include "opt_inet.h"
31 #include "opt_inet6.h"
32
33 #include <sys/param.h>
34 #include <sys/malloc.h>
35 #include <sys/mbuf.h>
36 #include <sys/priv.h>
37 #include <sys/socket.h>
38 #include <sys/ucred.h>
39
40 #include <net/pfvar.h>
41
42 #include <netlink/netlink.h>
43 #include <netlink/netlink_ctl.h>
44 #include <netlink/netlink_generic.h>
45 #include <netlink/netlink_message_writer.h>
46
47 #include <netpfil/pf/pf_nl.h>
48
49 #define DEBUG_MOD_NAME nl_pf
50 #define DEBUG_MAX_LEVEL LOG_DEBUG3
51 #include <netlink/netlink_debug.h>
52 _DECLARE_DEBUG(LOG_DEBUG);
53
54 static bool nlattr_add_pf_threshold(struct nl_writer *, int,
55 struct pf_kthreshold *);
56
57 struct nl_parsed_state {
58 uint8_t version;
59 uint32_t id;
60 uint32_t creatorid;
61 char ifname[IFNAMSIZ];
62 uint16_t proto;
63 sa_family_t af;
64 struct pf_addr addr;
65 struct pf_addr mask;
66 };
67
68 #define _IN(_field) offsetof(struct genlmsghdr, _field)
69 #define _OUT(_field) offsetof(struct nl_parsed_state, _field)
70 static const struct nlattr_parser nla_p_state[] = {
71 { .type = PF_ST_ID, .off = _OUT(id), .cb = nlattr_get_uint32 },
72 { .type = PF_ST_CREATORID, .off = _OUT(creatorid), .cb = nlattr_get_uint32 },
73 { .type = PF_ST_IFNAME, .arg = (const void *)IFNAMSIZ, .off = _OUT(ifname), .cb = nlattr_get_chara },
74 { .type = PF_ST_AF, .off = _OUT(af), .cb = nlattr_get_uint8 },
75 { .type = PF_ST_PROTO, .off = _OUT(proto), .cb = nlattr_get_uint16 },
76 { .type = PF_ST_FILTER_ADDR, .off = _OUT(addr), .cb = nlattr_get_in6_addr },
77 { .type = PF_ST_FILTER_MASK, .off = _OUT(mask), .cb = nlattr_get_in6_addr },
78 };
79 static const struct nlfield_parser nlf_p_generic[] = {
80 { .off_in = _IN(version), .off_out = _OUT(version), .cb = nlf_get_u8 },
81 };
82 #undef _IN
83 #undef _OUT
84 NL_DECLARE_PARSER(state_parser, struct genlmsghdr, nlf_p_generic, nla_p_state);
85
86 static void
dump_addr(struct nl_writer * nw,int attr,const struct pf_addr * addr,int af)87 dump_addr(struct nl_writer *nw, int attr, const struct pf_addr *addr, int af)
88 {
89 switch (af) {
90 case AF_INET:
91 nlattr_add(nw, attr, 4, &addr->v4);
92 break;
93 case AF_INET6:
94 nlattr_add(nw, attr, 16, &addr->v6);
95 break;
96 };
97 }
98
99 static bool
dump_state_peer(struct nl_writer * nw,int attr,const struct pf_state_peer * peer)100 dump_state_peer(struct nl_writer *nw, int attr, const struct pf_state_peer *peer)
101 {
102 int off = nlattr_add_nested(nw, attr);
103 if (off == 0)
104 return (false);
105
106 nlattr_add_u32(nw, PF_STP_SEQLO, peer->seqlo);
107 nlattr_add_u32(nw, PF_STP_SEQHI, peer->seqhi);
108 nlattr_add_u32(nw, PF_STP_SEQDIFF, peer->seqdiff);
109 nlattr_add_u16(nw, PF_STP_MAX_WIN, peer->max_win);
110 nlattr_add_u16(nw, PF_STP_MSS, peer->mss);
111 nlattr_add_u8(nw, PF_STP_STATE, peer->state);
112 nlattr_add_u8(nw, PF_STP_WSCALE, peer->wscale);
113
114 if (peer->scrub != NULL) {
115 struct pf_state_scrub *sc = peer->scrub;
116 uint16_t pfss_flags = sc->pfss_flags & PFSS_TIMESTAMP;
117
118 nlattr_add_u16(nw, PF_STP_PFSS_FLAGS, pfss_flags);
119 nlattr_add_u32(nw, PF_STP_PFSS_TS_MOD, sc->pfss_ts_mod);
120 nlattr_add_u8(nw, PF_STP_PFSS_TTL, sc->pfss_ttl);
121 nlattr_add_u8(nw, PF_STP_SCRUB_FLAG, PF_SCRUB_FLAG_VALID);
122 }
123 nlattr_set_len(nw, off);
124
125 return (true);
126 }
127
128 static bool
dump_state_key(struct nl_writer * nw,int attr,const struct pf_state_key * key)129 dump_state_key(struct nl_writer *nw, int attr, const struct pf_state_key *key)
130 {
131 int off = nlattr_add_nested(nw, attr);
132 if (off == 0)
133 return (false);
134
135 dump_addr(nw, PF_STK_ADDR0, &key->addr[0], key->af);
136 dump_addr(nw, PF_STK_ADDR1, &key->addr[1], key->af);
137 nlattr_add_u16(nw, PF_STK_PORT0, key->port[0]);
138 nlattr_add_u16(nw, PF_STK_PORT1, key->port[1]);
139 nlattr_add_u8(nw, PF_STK_AF, key->af);
140 nlattr_add_u16(nw, PF_STK_PROTO, key->proto);
141
142 nlattr_set_len(nw, off);
143
144 return (true);
145 }
146
147 static int
dump_state(struct nlpcb * nlp,const struct nlmsghdr * hdr,struct pf_kstate * s,struct nl_pstate * npt)148 dump_state(struct nlpcb *nlp, const struct nlmsghdr *hdr, struct pf_kstate *s,
149 struct nl_pstate *npt)
150 {
151 struct nl_writer *nw = npt->nw;
152 int error = 0;
153 int af;
154 struct pf_state_key *key;
155
156 PF_STATE_LOCK_ASSERT(s);
157
158 if (!nlmsg_reply(nw, hdr, sizeof(struct genlmsghdr)))
159 goto enomem;
160
161 struct genlmsghdr *ghdr_new = nlmsg_reserve_object(nw, struct genlmsghdr);
162 ghdr_new->cmd = PFNL_CMD_GETSTATES;
163 ghdr_new->version = 0;
164 ghdr_new->reserved = 0;
165
166 nlattr_add_u64(nw, PF_ST_VERSION, PF_STATE_VERSION);
167
168 key = s->key[PF_SK_WIRE];
169 if (!dump_state_key(nw, PF_ST_KEY_WIRE, key))
170 goto enomem;
171 key = s->key[PF_SK_STACK];
172 if (!dump_state_key(nw, PF_ST_KEY_STACK, key))
173 goto enomem;
174
175 af = s->key[PF_SK_WIRE]->af;
176 nlattr_add_u8(nw, PF_ST_PROTO, s->key[PF_SK_WIRE]->proto);
177 nlattr_add_u8(nw, PF_ST_AF, af);
178
179 nlattr_add_string(nw, PF_ST_IFNAME, s->kif->pfik_name);
180 nlattr_add_string(nw, PF_ST_ORIG_IFNAME, s->orig_kif->pfik_name);
181 dump_addr(nw, PF_ST_RT_ADDR, &s->act.rt_addr, s->act.rt_af);
182 nlattr_add_u32(nw, PF_ST_CREATION, time_uptime - (s->creation / 1000));
183 uint32_t expire = pf_state_expires(s);
184 if (expire > time_uptime)
185 expire = expire - time_uptime;
186 nlattr_add_u32(nw, PF_ST_EXPIRE, expire);
187 nlattr_add_u8(nw, PF_ST_DIRECTION, s->direction);
188 nlattr_add_u8(nw, PF_ST_LOG, s->act.log);
189 nlattr_add_u8(nw, PF_ST_TIMEOUT, s->timeout);
190 nlattr_add_u16(nw, PF_ST_STATE_FLAGS, s->state_flags);
191 uint8_t sync_flags = 0;
192 if (s->sns[PF_SN_LIMIT] != NULL)
193 sync_flags |= PFSYNC_FLAG_SRCNODE;
194 if (s->sns[PF_SN_NAT] != NULL || s->sns[PF_SN_ROUTE])
195 sync_flags |= PFSYNC_FLAG_NATSRCNODE;
196 nlattr_add_u8(nw, PF_ST_SYNC_FLAGS, sync_flags);
197 nlattr_add_u64(nw, PF_ST_ID, s->id);
198 nlattr_add_u32(nw, PF_ST_CREATORID, htonl(s->creatorid));
199
200 nlattr_add_u32(nw, PF_ST_RULE, s->rule ? s->rule->nr : -1);
201 nlattr_add_u32(nw, PF_ST_ANCHOR, s->anchor ? s->anchor->nr : -1);
202 nlattr_add_u32(nw, PF_ST_NAT_RULE, s->nat_rule ? s->nat_rule->nr : -1);
203
204 nlattr_add_u64(nw, PF_ST_PACKETS0, s->packets[0]);
205 nlattr_add_u64(nw, PF_ST_PACKETS1, s->packets[1]);
206 nlattr_add_u64(nw, PF_ST_BYTES0, s->bytes[0]);
207 nlattr_add_u64(nw, PF_ST_BYTES1, s->bytes[1]);
208 nlattr_add_u32(nw, PF_ST_RTABLEID, s->act.rtableid);
209 nlattr_add_u8(nw, PF_ST_MIN_TTL, s->act.min_ttl);
210 nlattr_add_u16(nw, PF_ST_MAX_MSS, s->act.max_mss);
211 nlattr_add_u16(nw, PF_ST_DNPIPE, s->act.dnpipe);
212 nlattr_add_u16(nw, PF_ST_DNRPIPE, s->act.dnrpipe);
213 nlattr_add_u8(nw, PF_ST_RT, s->act.rt);
214 if (s->act.rt_kif != NULL)
215 nlattr_add_string(nw, PF_ST_RT_IFNAME, s->act.rt_kif->pfik_name);
216 uint8_t src_node_flags = 0;
217 if (s->sns[PF_SN_LIMIT] != NULL) {
218 src_node_flags |= PFSTATE_SRC_NODE_LIMIT;
219 if (s->sns[PF_SN_LIMIT]->rule == &V_pf_default_rule)
220 src_node_flags |= PFSTATE_SRC_NODE_LIMIT_GLOBAL;
221 }
222 if (s->sns[PF_SN_NAT] != NULL)
223 src_node_flags |= PFSTATE_SRC_NODE_NAT;
224 if (s->sns[PF_SN_ROUTE] != NULL)
225 src_node_flags |= PFSTATE_SRC_NODE_ROUTE;
226 nlattr_add_u8(nw, PF_ST_SRC_NODE_FLAGS, src_node_flags);
227 nlattr_add_u8(nw, PF_ST_RT_AF, s->act.rt_af);
228
229 if (!dump_state_peer(nw, PF_ST_PEER_SRC, &s->src))
230 goto enomem;
231 if (!dump_state_peer(nw, PF_ST_PEER_DST, &s->dst))
232 goto enomem;
233
234 if (nlmsg_end(nw))
235 return (0);
236
237 enomem:
238 error = ENOMEM;
239 nlmsg_abort(nw);
240 return (error);
241 }
242
243 static int
handle_dumpstates(struct nlpcb * nlp,struct nl_parsed_state * attrs,struct nlmsghdr * hdr,struct nl_pstate * npt)244 handle_dumpstates(struct nlpcb *nlp, struct nl_parsed_state *attrs,
245 struct nlmsghdr *hdr, struct nl_pstate *npt)
246 {
247 int error = 0;
248
249 hdr->nlmsg_flags |= NLM_F_MULTI;
250
251 for (int i = 0; i <= V_pf_hashmask; i++) {
252 struct pf_idhash *ih = &V_pf_idhash[i];
253 struct pf_kstate *s;
254
255 if (LIST_EMPTY(&ih->states))
256 continue;
257
258 PF_HASHROW_LOCK(ih);
259 LIST_FOREACH(s, &ih->states, entry) {
260 sa_family_t af = s->key[PF_SK_WIRE]->af;
261
262 if (s->timeout == PFTM_UNLINKED)
263 continue;
264
265 /* Filter */
266 if (attrs->creatorid != 0 && s->creatorid != attrs->creatorid)
267 continue;
268 if (attrs->ifname[0] != 0 &&
269 strncmp(attrs->ifname, s->kif->pfik_name, IFNAMSIZ) != 0)
270 continue;
271 if (attrs->proto != 0 && s->key[PF_SK_WIRE]->proto != attrs->proto)
272 continue;
273 if (attrs->af != 0 && af != attrs->af)
274 continue;
275 if (pf_match_addr(1, &s->key[PF_SK_WIRE]->addr[0],
276 &attrs->mask, &attrs->addr, af) &&
277 pf_match_addr(1, &s->key[PF_SK_WIRE]->addr[1],
278 &attrs->mask, &attrs->addr, af) &&
279 pf_match_addr(1, &s->key[PF_SK_STACK]->addr[0],
280 &attrs->mask, &attrs->addr, af) &&
281 pf_match_addr(1, &s->key[PF_SK_STACK]->addr[1],
282 &attrs->mask, &attrs->addr, af))
283 continue;
284
285 error = dump_state(nlp, hdr, s, npt);
286 if (error != 0)
287 break;
288 }
289 PF_HASHROW_UNLOCK(ih);
290 }
291
292 if (!nlmsg_end_dump(npt->nw, error, hdr)) {
293 NL_LOG(LOG_DEBUG, "Unable to finalize the dump");
294 return (ENOMEM);
295 }
296
297 return (error);
298 }
299
300 static int
handle_getstate(struct nlpcb * nlp,struct nl_parsed_state * attrs,struct nlmsghdr * hdr,struct nl_pstate * npt)301 handle_getstate(struct nlpcb *nlp, struct nl_parsed_state *attrs,
302 struct nlmsghdr *hdr, struct nl_pstate *npt)
303 {
304 struct pf_kstate *s;
305 int ret;
306
307 s = pf_find_state_byid(attrs->id, attrs->creatorid);
308 if (s == NULL)
309 return (ENOENT);
310 ret = dump_state(nlp, hdr, s, npt);
311 PF_STATE_UNLOCK(s);
312
313 return (ret);
314 }
315
316 static int
dump_creatorid(struct nlpcb * nlp,const struct nlmsghdr * hdr,uint32_t creator,struct nl_pstate * npt)317 dump_creatorid(struct nlpcb *nlp, const struct nlmsghdr *hdr, uint32_t creator,
318 struct nl_pstate *npt)
319 {
320 struct nl_writer *nw = npt->nw;
321
322 if (!nlmsg_reply(nw, hdr, sizeof(struct genlmsghdr)))
323 goto enomem;
324
325 struct genlmsghdr *ghdr_new = nlmsg_reserve_object(nw, struct genlmsghdr);
326 ghdr_new->cmd = PFNL_CMD_GETCREATORS;
327 ghdr_new->version = 0;
328 ghdr_new->reserved = 0;
329
330 nlattr_add_u32(nw, PF_ST_CREATORID, htonl(creator));
331
332 if (nlmsg_end(nw))
333 return (0);
334
335 enomem:
336 nlmsg_abort(nw);
337 return (ENOMEM);
338 }
339
340 static int
pf_handle_getstates(struct nlmsghdr * hdr,struct nl_pstate * npt)341 pf_handle_getstates(struct nlmsghdr *hdr, struct nl_pstate *npt)
342 {
343 int error;
344
345 struct nl_parsed_state attrs = {};
346 error = nl_parse_nlmsg(hdr, &state_parser, npt, &attrs);
347 if (error != 0)
348 return (error);
349
350 if (attrs.id != 0)
351 error = handle_getstate(npt->nlp, &attrs, hdr, npt);
352 else
353 error = handle_dumpstates(npt->nlp, &attrs, hdr, npt);
354
355 return (error);
356 }
357
358 static int
pf_handle_getcreators(struct nlmsghdr * hdr,struct nl_pstate * npt)359 pf_handle_getcreators(struct nlmsghdr *hdr, struct nl_pstate *npt)
360 {
361 uint32_t creators[16];
362 int error = 0;
363
364 bzero(creators, sizeof(creators));
365
366 for (int i = 0; i < V_pf_hashmask; i++) {
367 struct pf_idhash *ih = &V_pf_idhash[i];
368 struct pf_kstate *s;
369
370 if (LIST_EMPTY(&ih->states))
371 continue;
372
373 PF_HASHROW_LOCK(ih);
374 LIST_FOREACH(s, &ih->states, entry) {
375 int j;
376 if (s->timeout == PFTM_UNLINKED)
377 continue;
378
379 for (j = 0; j < nitems(creators); j++) {
380 if (creators[j] == s->creatorid)
381 break;
382 if (creators[j] == 0) {
383 creators[j] = s->creatorid;
384 break;
385 }
386 }
387 if (j == nitems(creators))
388 printf("Warning: too many creators!\n");
389 }
390 PF_HASHROW_UNLOCK(ih);
391 }
392
393 hdr->nlmsg_flags |= NLM_F_MULTI;
394 for (int i = 0; i < nitems(creators); i++) {
395 if (creators[i] == 0)
396 break;
397 error = dump_creatorid(npt->nlp, hdr, creators[i], npt);
398 }
399
400 if (!nlmsg_end_dump(npt->nw, error, hdr)) {
401 NL_LOG(LOG_DEBUG, "Unable to finalize the dump");
402 return (ENOMEM);
403 }
404
405 return (error);
406 }
407
408 static int
pf_handle_start(struct nlmsghdr * hdr __unused,struct nl_pstate * npt __unused)409 pf_handle_start(struct nlmsghdr *hdr __unused, struct nl_pstate *npt __unused)
410 {
411 return (pf_start());
412 }
413
414 static int
pf_handle_stop(struct nlmsghdr * hdr __unused,struct nl_pstate * npt __unused)415 pf_handle_stop(struct nlmsghdr *hdr __unused, struct nl_pstate *npt __unused)
416 {
417 return (pf_stop());
418 }
419
420 #define _OUT(_field) offsetof(struct pf_addr_wrap, _field)
421 static const struct nlattr_parser nla_p_addr_wrap[] = {
422 { .type = PF_AT_ADDR, .off = _OUT(v.a.addr), .cb = nlattr_get_in6_addr },
423 { .type = PF_AT_MASK, .off = _OUT(v.a.mask), .cb = nlattr_get_in6_addr },
424 { .type = PF_AT_IFNAME, .off = _OUT(v.ifname), .arg = (void *)IFNAMSIZ,.cb = nlattr_get_chara },
425 { .type = PF_AT_TABLENAME, .off = _OUT(v.tblname), .arg = (void *)PF_TABLE_NAME_SIZE, .cb = nlattr_get_chara },
426 { .type = PF_AT_TYPE, .off = _OUT(type), .cb = nlattr_get_uint8 },
427 { .type = PF_AT_IFLAGS, .off = _OUT(iflags), .cb = nlattr_get_uint8 },
428 };
429 NL_DECLARE_ATTR_PARSER(addr_wrap_parser, nla_p_addr_wrap);
430 #undef _OUT
431
432 static bool
nlattr_add_addr_wrap(struct nl_writer * nw,int attrtype,struct pf_addr_wrap * a)433 nlattr_add_addr_wrap(struct nl_writer *nw, int attrtype, struct pf_addr_wrap *a)
434 {
435 int off = nlattr_add_nested(nw, attrtype);
436
437 nlattr_add_in6_addr(nw, PF_AT_ADDR, &a->v.a.addr.v6);
438 nlattr_add_in6_addr(nw, PF_AT_MASK, &a->v.a.mask.v6);
439 nlattr_add_u8(nw, PF_AT_TYPE, a->type);
440 nlattr_add_u8(nw, PF_AT_IFLAGS, a->iflags);
441
442 if (a->type == PF_ADDR_DYNIFTL) {
443 nlattr_add_string(nw, PF_AT_IFNAME, a->v.ifname);
444 nlattr_add_u32(nw, PF_AT_DYNCNT, a->p.dyncnt);
445 } else if (a->type == PF_ADDR_TABLE) {
446 nlattr_add_string(nw, PF_AT_TABLENAME, a->v.tblname);
447 nlattr_add_u32(nw, PF_AT_TBLCNT, a->p.tblcnt);
448 }
449
450 nlattr_set_len(nw, off);
451
452 return (true);
453 }
454
455 #define _OUT(_field) offsetof(struct pf_rule_addr, _field)
456 static const struct nlattr_parser nla_p_ruleaddr[] = {
457 { .type = PF_RAT_ADDR, .off = _OUT(addr), .arg = &addr_wrap_parser, .cb = nlattr_get_nested },
458 { .type = PF_RAT_SRC_PORT, .off = _OUT(port[0]), .cb = nlattr_get_uint16 },
459 { .type = PF_RAT_DST_PORT, .off = _OUT(port[1]), .cb = nlattr_get_uint16 },
460 { .type = PF_RAT_NEG, .off = _OUT(neg), .cb = nlattr_get_uint8 },
461 { .type = PF_RAT_OP, .off = _OUT(port_op), .cb = nlattr_get_uint8 },
462 };
463 NL_DECLARE_ATTR_PARSER(rule_addr_parser, nla_p_ruleaddr);
464 #undef _OUT
465
466 static bool
nlattr_add_rule_addr(struct nl_writer * nw,int attrtype,struct pf_rule_addr * r)467 nlattr_add_rule_addr(struct nl_writer *nw, int attrtype, struct pf_rule_addr *r)
468 {
469 struct pf_addr_wrap aw = {0};
470 int off = nlattr_add_nested(nw, attrtype);
471
472 bcopy(&(r->addr), &aw, sizeof(struct pf_addr_wrap));
473 pf_addr_copyout(&aw);
474
475 nlattr_add_addr_wrap(nw, PF_RAT_ADDR, &aw);
476 nlattr_add_u16(nw, PF_RAT_SRC_PORT, r->port[0]);
477 nlattr_add_u16(nw, PF_RAT_DST_PORT, r->port[1]);
478 nlattr_add_u8(nw, PF_RAT_NEG, r->neg);
479 nlattr_add_u8(nw, PF_RAT_OP, r->port_op);
480
481 nlattr_set_len(nw, off);
482
483 return (true);
484 }
485
486 #define _OUT(_field) offsetof(struct pf_mape_portset, _field)
487 static const struct nlattr_parser nla_p_mape_portset[] = {
488 { .type = PF_MET_OFFSET, .off = _OUT(offset), .cb = nlattr_get_uint8 },
489 { .type = PF_MET_PSID_LEN, .off = _OUT(psidlen), .cb = nlattr_get_uint8 },
490 {. type = PF_MET_PSID, .off = _OUT(psid), .cb = nlattr_get_uint16 },
491 };
492 NL_DECLARE_ATTR_PARSER(mape_portset_parser, nla_p_mape_portset);
493 #undef _OUT
494
495 static bool
nlattr_add_mape_portset(struct nl_writer * nw,int attrtype,const struct pf_mape_portset * m)496 nlattr_add_mape_portset(struct nl_writer *nw, int attrtype, const struct pf_mape_portset *m)
497 {
498 int off = nlattr_add_nested(nw, attrtype);
499
500 nlattr_add_u8(nw, PF_MET_OFFSET, m->offset);
501 nlattr_add_u8(nw, PF_MET_PSID_LEN, m->psidlen);
502 nlattr_add_u16(nw, PF_MET_PSID, m->psid);
503
504 nlattr_set_len(nw, off);
505
506 return (true);
507 }
508
509 struct nl_parsed_labels
510 {
511 char labels[PF_RULE_MAX_LABEL_COUNT][PF_RULE_LABEL_SIZE];
512 uint32_t i;
513 };
514
515 static int
nlattr_get_pf_rule_labels(struct nlattr * nla,struct nl_pstate * npt,const void * arg,void * target)516 nlattr_get_pf_rule_labels(struct nlattr *nla, struct nl_pstate *npt,
517 const void *arg, void *target)
518 {
519 struct nl_parsed_labels *l = (struct nl_parsed_labels *)target;
520 int ret;
521
522 if (l->i >= PF_RULE_MAX_LABEL_COUNT)
523 return (E2BIG);
524
525 ret = nlattr_get_chara(nla, npt, (void *)PF_RULE_LABEL_SIZE,
526 l->labels[l->i]);
527 if (ret == 0)
528 l->i++;
529
530 return (ret);
531 }
532
533 #define _OUT(_field) offsetof(struct nl_parsed_labels, _field)
534 static const struct nlattr_parser nla_p_labels[] = {
535 { .type = PF_LT_LABEL, .off = 0, .cb = nlattr_get_pf_rule_labels },
536 };
537 NL_DECLARE_ATTR_PARSER(rule_labels_parser, nla_p_labels);
538 #undef _OUT
539
540 static int
nlattr_get_nested_pf_rule_labels(struct nlattr * nla,struct nl_pstate * npt,const void * arg,void * target)541 nlattr_get_nested_pf_rule_labels(struct nlattr *nla, struct nl_pstate *npt, const void *arg, void *target)
542 {
543 struct nl_parsed_labels parsed_labels = { };
544 int error;
545
546 /* Assumes target points to the beginning of the structure */
547 error = nl_parse_header(NLA_DATA(nla), NLA_DATA_LEN(nla), &rule_labels_parser, npt, &parsed_labels);
548 if (error != 0)
549 return (error);
550
551 memcpy(target, parsed_labels.labels, sizeof(parsed_labels.labels));
552
553 return (0);
554 }
555
556 static bool
nlattr_add_labels(struct nl_writer * nw,int attrtype,const struct pf_krule * r)557 nlattr_add_labels(struct nl_writer *nw, int attrtype, const struct pf_krule *r)
558 {
559 int off = nlattr_add_nested(nw, attrtype);
560 int i = 0;
561
562 while (r->label[i][0] != 0
563 && i < PF_RULE_MAX_LABEL_COUNT) {
564 nlattr_add_string(nw, PF_LT_LABEL, r->label[i]);
565 i++;
566 }
567
568 nlattr_set_len(nw, off);
569
570 return (true);
571 }
572
573 #define _OUT(_field) offsetof(struct pf_kpool, _field)
574 static const struct nlattr_parser nla_p_pool[] = {
575 { .type = PF_PT_KEY, .off = _OUT(key), .arg = (void *)sizeof(struct pf_poolhashkey), .cb = nlattr_get_bytes },
576 { .type = PF_PT_COUNTER, .off = _OUT(counter), .cb = nlattr_get_in6_addr },
577 { .type = PF_PT_TBLIDX, .off = _OUT(tblidx), .cb = nlattr_get_uint32 },
578 { .type = PF_PT_PROXY_SRC_PORT, .off = _OUT(proxy_port[0]), .cb = nlattr_get_uint16 },
579 { .type = PF_PT_PROXY_DST_PORT, .off = _OUT(proxy_port[1]), .cb = nlattr_get_uint16 },
580 { .type = PF_PT_OPTS, .off = _OUT(opts), .cb = nlattr_get_uint8 },
581 { .type = PF_PT_MAPE, .off = _OUT(mape), .arg = &mape_portset_parser, .cb = nlattr_get_nested },
582 };
583 NL_DECLARE_ATTR_PARSER(pool_parser, nla_p_pool);
584 #undef _OUT
585
586 static bool
nlattr_add_pool(struct nl_writer * nw,int attrtype,const struct pf_kpool * pool)587 nlattr_add_pool(struct nl_writer *nw, int attrtype, const struct pf_kpool *pool)
588 {
589 int off = nlattr_add_nested(nw, attrtype);
590
591 nlattr_add(nw, PF_PT_KEY, sizeof(struct pf_poolhashkey), &pool->key);
592 nlattr_add_in6_addr(nw, PF_PT_COUNTER, (const struct in6_addr *)&pool->counter);
593 nlattr_add_u32(nw, PF_PT_TBLIDX, pool->tblidx);
594 nlattr_add_u16(nw, PF_PT_PROXY_SRC_PORT, pool->proxy_port[0]);
595 nlattr_add_u16(nw, PF_PT_PROXY_DST_PORT, pool->proxy_port[1]);
596 nlattr_add_u8(nw, PF_PT_OPTS, pool->opts);
597 nlattr_add_mape_portset(nw, PF_PT_MAPE, &pool->mape);
598
599 nlattr_set_len(nw, off);
600
601 return (true);
602 }
603
604 #define _OUT(_field) offsetof(struct pf_rule_uid, _field)
605 static const struct nlattr_parser nla_p_rule_uid[] = {
606 { .type = PF_RUT_UID_LOW, .off = _OUT(uid[0]), .cb = nlattr_get_uint32 },
607 { .type = PF_RUT_UID_HIGH, .off = _OUT(uid[1]), .cb = nlattr_get_uint32 },
608 { .type = PF_RUT_OP, .off = _OUT(op), .cb = nlattr_get_uint8 },
609 };
610 NL_DECLARE_ATTR_PARSER(rule_uid_parser, nla_p_rule_uid);
611 #undef _OUT
612
613 static bool
nlattr_add_rule_uid(struct nl_writer * nw,int attrtype,const struct pf_rule_uid * u)614 nlattr_add_rule_uid(struct nl_writer *nw, int attrtype, const struct pf_rule_uid *u)
615 {
616 int off = nlattr_add_nested(nw, attrtype);
617
618 nlattr_add_u32(nw, PF_RUT_UID_LOW, u->uid[0]);
619 nlattr_add_u32(nw, PF_RUT_UID_HIGH, u->uid[1]);
620 nlattr_add_u8(nw, PF_RUT_OP, u->op);
621
622 nlattr_set_len(nw, off);
623
624 return (true);
625 }
626
627 struct nl_parsed_timeouts
628 {
629 uint32_t timeouts[PFTM_MAX];
630 uint32_t i;
631 };
632
633 static int
nlattr_get_pf_timeout(struct nlattr * nla,struct nl_pstate * npt,const void * arg,void * target)634 nlattr_get_pf_timeout(struct nlattr *nla, struct nl_pstate *npt,
635 const void *arg, void *target)
636 {
637 struct nl_parsed_timeouts *t = (struct nl_parsed_timeouts *)target;
638 int ret;
639
640 if (t->i >= PFTM_MAX)
641 return (E2BIG);
642
643 ret = nlattr_get_uint32(nla, npt, NULL, &t->timeouts[t->i]);
644 if (ret == 0)
645 t->i++;
646
647 return (ret);
648 }
649
650 #define _OUT(_field) offsetof(struct nl_parsed_timeout, _field)
651 static const struct nlattr_parser nla_p_timeouts[] = {
652 { .type = PF_TT_TIMEOUT, .off = 0, .cb = nlattr_get_pf_timeout },
653 };
654 NL_DECLARE_ATTR_PARSER(timeout_parser, nla_p_timeouts);
655 #undef _OUT
656
657 static int
nlattr_get_nested_timeouts(struct nlattr * nla,struct nl_pstate * npt,const void * arg,void * target)658 nlattr_get_nested_timeouts(struct nlattr *nla, struct nl_pstate *npt, const void *arg, void *target)
659 {
660 struct nl_parsed_timeouts parsed_timeouts = { };
661 int error;
662
663 /* Assumes target points to the beginning of the structure */
664 error = nl_parse_header(NLA_DATA(nla), NLA_DATA_LEN(nla), &timeout_parser, npt, &parsed_timeouts);
665 if (error != 0)
666 return (error);
667
668 memcpy(target, parsed_timeouts.timeouts, sizeof(parsed_timeouts.timeouts));
669
670 return (0);
671 }
672
673 static bool
nlattr_add_timeout(struct nl_writer * nw,int attrtype,uint32_t * timeout)674 nlattr_add_timeout(struct nl_writer *nw, int attrtype, uint32_t *timeout)
675 {
676 int off = nlattr_add_nested(nw, attrtype);
677
678 for (int i = 0; i < PFTM_MAX; i++)
679 nlattr_add_u32(nw, PF_RT_TIMEOUT, timeout[i]);
680
681 nlattr_set_len(nw, off);
682
683 return (true);
684 }
685
686 #define _OUT(_field) offsetof(struct pf_kthreshold, _field)
687 static const struct nlattr_parser nla_p_threshold[] = {
688 { .type = PF_TH_LIMIT, .off = _OUT(limit), .cb = nlattr_get_uint32 },
689 { .type = PF_TH_SECONDS, .off = _OUT(seconds), .cb = nlattr_get_uint32 },
690 };
691 NL_DECLARE_ATTR_PARSER(threshold_parser, nla_p_threshold);
692 #undef _OUT
693
694 #define _OUT(_field) offsetof(struct pf_krule, _field)
695 static const struct nlattr_parser nla_p_rule[] = {
696 { .type = PF_RT_SRC, .off = _OUT(src), .arg = &rule_addr_parser,.cb = nlattr_get_nested },
697 { .type = PF_RT_DST, .off = _OUT(dst), .arg = &rule_addr_parser,.cb = nlattr_get_nested },
698 { .type = PF_RT_RIDENTIFIER, .off = _OUT(ridentifier), .cb = nlattr_get_uint32 },
699 { .type = PF_RT_LABELS, .off = _OUT(label), .arg = &rule_labels_parser,.cb = nlattr_get_nested_pf_rule_labels },
700 { .type = PF_RT_IFNAME, .off = _OUT(ifname), .arg = (void *)IFNAMSIZ, .cb = nlattr_get_chara },
701 { .type = PF_RT_QNAME, .off = _OUT(qname), .arg = (void *)PF_QNAME_SIZE, .cb = nlattr_get_chara },
702 { .type = PF_RT_PQNAME, .off = _OUT(pqname), .arg = (void *)PF_QNAME_SIZE, .cb = nlattr_get_chara },
703 { .type = PF_RT_TAGNAME, .off = _OUT(tagname), .arg = (void *)PF_TAG_NAME_SIZE, .cb = nlattr_get_chara },
704 { .type = PF_RT_MATCH_TAGNAME, .off = _OUT(match_tagname), .arg = (void *)PF_TAG_NAME_SIZE, .cb = nlattr_get_chara },
705 { .type = PF_RT_OVERLOAD_TBLNAME, .off = _OUT(overload_tblname), .arg = (void *)PF_TABLE_NAME_SIZE, .cb = nlattr_get_chara },
706 { .type = PF_RT_RPOOL_RDR, .off = _OUT(rdr), .arg = &pool_parser, .cb = nlattr_get_nested },
707 { .type = PF_RT_OS_FINGERPRINT, .off = _OUT(os_fingerprint), .cb = nlattr_get_uint32 },
708 { .type = PF_RT_RTABLEID, .off = _OUT(rtableid), .cb = nlattr_get_uint32 },
709 { .type = PF_RT_TIMEOUT, .off = _OUT(timeout), .arg = &timeout_parser, .cb = nlattr_get_nested_timeouts },
710 { .type = PF_RT_MAX_STATES, .off = _OUT(max_states), .cb = nlattr_get_uint32 },
711 { .type = PF_RT_MAX_SRC_NODES, .off = _OUT(max_src_nodes), .cb = nlattr_get_uint32 },
712 { .type = PF_RT_MAX_SRC_STATES, .off = _OUT(max_src_states), .cb = nlattr_get_uint32 },
713 { .type = PF_RT_MAX_SRC_CONN_RATE_LIMIT, .off = _OUT(max_src_conn_rate.limit), .cb = nlattr_get_uint32 },
714 { .type = PF_RT_MAX_SRC_CONN_RATE_SECS, .off = _OUT(max_src_conn_rate.seconds), .cb = nlattr_get_uint32 },
715 { .type = PF_RT_DNPIPE, .off = _OUT(dnpipe), .cb = nlattr_get_uint16 },
716 { .type = PF_RT_DNRPIPE, .off = _OUT(dnrpipe), .cb = nlattr_get_uint16 },
717 { .type = PF_RT_DNFLAGS, .off = _OUT(free_flags), .cb = nlattr_get_uint32 },
718 { .type = PF_RT_NR, .off = _OUT(nr), .cb = nlattr_get_uint32 },
719 { .type = PF_RT_PROB, .off = _OUT(prob), .cb = nlattr_get_uint32 },
720 { .type = PF_RT_CUID, .off = _OUT(cuid), .cb = nlattr_get_uint32 },
721 {. type = PF_RT_CPID, .off = _OUT(cpid), .cb = nlattr_get_uint32 },
722 { .type = PF_RT_RETURN_ICMP, .off = _OUT(return_icmp), .cb = nlattr_get_uint16 },
723 { .type = PF_RT_RETURN_ICMP6, .off = _OUT(return_icmp6), .cb = nlattr_get_uint16 },
724 { .type = PF_RT_MAX_MSS, .off = _OUT(max_mss), .cb = nlattr_get_uint16 },
725 { .type = PF_RT_SCRUB_FLAGS, .off = _OUT(scrub_flags), .cb = nlattr_get_uint16 },
726 { .type = PF_RT_UID, .off = _OUT(uid), .arg = &rule_uid_parser, .cb = nlattr_get_nested },
727 { .type = PF_RT_GID, .off = _OUT(gid), .arg = &rule_uid_parser, .cb = nlattr_get_nested },
728 { .type = PF_RT_RULE_FLAG, .off = _OUT(rule_flag), .cb = nlattr_get_uint32 },
729 { .type = PF_RT_ACTION, .off = _OUT(action), .cb = nlattr_get_uint8 },
730 { .type = PF_RT_DIRECTION, .off = _OUT(direction), .cb = nlattr_get_uint8 },
731 { .type = PF_RT_LOG, .off = _OUT(log), .cb = nlattr_get_uint8 },
732 { .type = PF_RT_LOGIF, .off = _OUT(logif), .cb = nlattr_get_uint8 },
733 { .type = PF_RT_QUICK, .off = _OUT(quick), .cb = nlattr_get_uint8 },
734 { .type = PF_RT_IF_NOT, .off = _OUT(ifnot), .cb = nlattr_get_uint8 },
735 { .type = PF_RT_MATCH_TAG_NOT, .off = _OUT(match_tag_not), .cb = nlattr_get_uint8 },
736 { .type = PF_RT_NATPASS, .off = _OUT(natpass), .cb = nlattr_get_uint8 },
737 { .type = PF_RT_KEEP_STATE, .off = _OUT(keep_state), .cb = nlattr_get_uint8 },
738 { .type = PF_RT_AF, .off = _OUT(af), .cb = nlattr_get_uint8 },
739 { .type = PF_RT_PROTO, .off = _OUT(proto), .cb = nlattr_get_uint8 },
740 { .type = PF_RT_TYPE, .off = _OUT(type), .cb = nlattr_get_uint8 },
741 { .type = PF_RT_CODE, .off = _OUT(code), .cb = nlattr_get_uint8 },
742 { .type = PF_RT_FLAGS, .off = _OUT(flags), .cb = nlattr_get_uint8 },
743 { .type = PF_RT_FLAGSET, .off = _OUT(flagset), .cb = nlattr_get_uint8 },
744 { .type = PF_RT_MIN_TTL, .off = _OUT(min_ttl), .cb = nlattr_get_uint8 },
745 { .type = PF_RT_ALLOW_OPTS, .off = _OUT(allow_opts), .cb = nlattr_get_uint8 },
746 { .type = PF_RT_RT, .off = _OUT(rt), .cb = nlattr_get_uint8 },
747 { .type = PF_RT_RETURN_TTL, .off = _OUT(return_ttl), .cb = nlattr_get_uint8 },
748 { .type = PF_RT_TOS, .off = _OUT(tos), .cb = nlattr_get_uint8 },
749 { .type = PF_RT_SET_TOS, .off = _OUT(set_tos), .cb = nlattr_get_uint8 },
750 { .type = PF_RT_ANCHOR_RELATIVE, .off = _OUT(anchor_relative), .cb = nlattr_get_uint8 },
751 { .type = PF_RT_ANCHOR_WILDCARD, .off = _OUT(anchor_wildcard), .cb = nlattr_get_uint8 },
752 { .type = PF_RT_FLUSH, .off = _OUT(flush), .cb = nlattr_get_uint8 },
753 { .type = PF_RT_PRIO, .off = _OUT(prio), .cb = nlattr_get_uint8 },
754 { .type = PF_RT_SET_PRIO, .off = _OUT(set_prio[0]), .cb = nlattr_get_uint8 },
755 { .type = PF_RT_SET_PRIO_REPLY, .off = _OUT(set_prio[1]), .cb = nlattr_get_uint8 },
756 { .type = PF_RT_DIVERT_ADDRESS, .off = _OUT(divert.addr), .cb = nlattr_get_in6_addr },
757 { .type = PF_RT_DIVERT_PORT, .off = _OUT(divert.port), .cb = nlattr_get_uint16 },
758 { .type = PF_RT_RCV_IFNAME, .off = _OUT(rcv_ifname), .arg = (void *)IFNAMSIZ, .cb = nlattr_get_chara },
759 { .type = PF_RT_MAX_SRC_CONN, .off = _OUT(max_src_conn), .cb = nlattr_get_uint32 },
760 { .type = PF_RT_RPOOL_NAT, .off = _OUT(nat), .arg = &pool_parser, .cb = nlattr_get_nested },
761 { .type = PF_RT_NAF, .off = _OUT(naf), .cb = nlattr_get_uint8 },
762 { .type = PF_RT_RPOOL_RT, .off = _OUT(route), .arg = &pool_parser, .cb = nlattr_get_nested },
763 { .type = PF_RT_RCV_IFNOT, .off = _OUT(rcvifnot), .cb = nlattr_get_bool },
764 { .type = PF_RT_PKTRATE, .off = _OUT(pktrate), .arg = &threshold_parser, .cb = nlattr_get_nested },
765 { .type = PF_RT_MAX_PKT_SIZE, .off = _OUT(max_pkt_size), .cb = nlattr_get_uint16 },
766 { .type = PF_RT_TYPE_2, .off = _OUT(type), .cb = nlattr_get_uint16 },
767 { .type = PF_RT_CODE_2, .off = _OUT(code), .cb = nlattr_get_uint16 },
768 };
769 NL_DECLARE_ATTR_PARSER(rule_parser, nla_p_rule);
770 #undef _OUT
771 struct nl_parsed_addrule {
772 struct pf_krule *rule;
773 uint32_t ticket;
774 uint32_t pool_ticket;
775 char *anchor;
776 char *anchor_call;
777 };
778 #define _OUT(_field) offsetof(struct nl_parsed_addrule, _field)
779 static const struct nlattr_parser nla_p_addrule[] = {
780 { .type = PF_ART_TICKET, .off = _OUT(ticket), .cb = nlattr_get_uint32 },
781 { .type = PF_ART_POOL_TICKET, .off = _OUT(pool_ticket), .cb = nlattr_get_uint32 },
782 { .type = PF_ART_ANCHOR, .off = _OUT(anchor), .cb = nlattr_get_string },
783 { .type = PF_ART_ANCHOR_CALL, .off = _OUT(anchor_call), .cb = nlattr_get_string },
784 { .type = PF_ART_RULE, .off = _OUT(rule), .arg = &rule_parser, .cb = nlattr_get_nested_ptr }
785 };
786 #undef _OUT
787 NL_DECLARE_PARSER(addrule_parser, struct genlmsghdr, nlf_p_empty, nla_p_addrule);
788
789 static int
pf_handle_addrule(struct nlmsghdr * hdr,struct nl_pstate * npt)790 pf_handle_addrule(struct nlmsghdr *hdr, struct nl_pstate *npt)
791 {
792 int error;
793 struct nl_parsed_addrule attrs = {};
794
795 attrs.rule = pf_krule_alloc();
796
797 error = nl_parse_nlmsg(hdr, &addrule_parser, npt, &attrs);
798 if (error != 0) {
799 pf_free_rule(attrs.rule);
800 return (error);
801 }
802
803 error = pf_ioctl_addrule(attrs.rule, attrs.ticket, attrs.pool_ticket,
804 attrs.anchor, attrs.anchor_call, nlp_get_cred(npt->nlp)->cr_uid,
805 hdr->nlmsg_pid);
806
807 return (error);
808 }
809
810 #define _OUT(_field) offsetof(struct pfioc_rule, _field)
811 static const struct nlattr_parser nla_p_getrules[] = {
812 { .type = PF_GR_ANCHOR, .off = _OUT(anchor), .arg = (void *)MAXPATHLEN, .cb = nlattr_get_chara },
813 { .type = PF_GR_ACTION, .off = _OUT(rule.action), .cb = nlattr_get_uint8 },
814 };
815 #undef _OUT
816 NL_DECLARE_PARSER(getrules_parser, struct genlmsghdr, nlf_p_empty, nla_p_getrules);
817
818 static int
pf_handle_getrules(struct nlmsghdr * hdr,struct nl_pstate * npt)819 pf_handle_getrules(struct nlmsghdr *hdr, struct nl_pstate *npt)
820 {
821 struct pfioc_rule attrs = {};
822 int error;
823 struct nl_writer *nw = npt->nw;
824 struct genlmsghdr *ghdr_new;
825
826 error = nl_parse_nlmsg(hdr, &getrules_parser, npt, &attrs);
827 if (error != 0)
828 return (error);
829
830 if (!nlmsg_reply(nw, hdr, sizeof(struct genlmsghdr)))
831 return (ENOMEM);
832
833 ghdr_new = nlmsg_reserve_object(nw, struct genlmsghdr);
834 ghdr_new->cmd = PFNL_CMD_GETRULES;
835 ghdr_new->version = 0;
836 ghdr_new->reserved = 0;
837
838 error = pf_ioctl_getrules(&attrs);
839 if (error != 0)
840 goto out;
841
842 nlattr_add_u32(nw, PF_GR_NR, attrs.nr);
843 nlattr_add_u32(nw, PF_GR_TICKET, attrs.ticket);
844
845 if (!nlmsg_end(nw)) {
846 error = ENOMEM;
847 goto out;
848 }
849
850 return (0);
851
852 out:
853 nlmsg_abort(nw);
854 return (error);
855 }
856
857 struct nl_parsed_get_rule {
858 char anchor[MAXPATHLEN];
859 uint8_t action;
860 uint32_t nr;
861 uint32_t ticket;
862 uint8_t clear;
863 };
864 #define _OUT(_field) offsetof(struct nl_parsed_get_rule, _field)
865 static const struct nlattr_parser nla_p_getrule[] = {
866 { .type = PF_GR_ANCHOR, .off = _OUT(anchor), .arg = (void *)MAXPATHLEN, .cb = nlattr_get_chara },
867 { .type = PF_GR_ACTION, .off = _OUT(action), .cb = nlattr_get_uint8 },
868 { .type = PF_GR_NR, .off = _OUT(nr), .cb = nlattr_get_uint32 },
869 { .type = PF_GR_TICKET, .off = _OUT(ticket), .cb = nlattr_get_uint32 },
870 { .type = PF_GR_CLEAR, .off = _OUT(clear), .cb = nlattr_get_uint8 },
871 };
872 #undef _OUT
873 NL_DECLARE_PARSER(getrule_parser, struct genlmsghdr, nlf_p_empty, nla_p_getrule);
874
875 static int
pf_handle_getrule(struct nlmsghdr * hdr,struct nl_pstate * npt)876 pf_handle_getrule(struct nlmsghdr *hdr, struct nl_pstate *npt)
877 {
878 char anchor_call[MAXPATHLEN];
879 struct nl_parsed_get_rule attrs = {};
880 struct nl_writer *nw = npt->nw;
881 struct genlmsghdr *ghdr_new;
882 struct pf_kruleset *ruleset;
883 struct pf_krule *rule;
884 u_int64_t src_nodes_total = 0;
885 int rs_num;
886 int error;
887
888 error = nl_parse_nlmsg(hdr, &getrule_parser, npt, &attrs);
889 if (error != 0)
890 return (error);
891
892 if (!nlmsg_reply(nw, hdr, sizeof(struct genlmsghdr)))
893 return (ENOMEM);
894
895 ghdr_new = nlmsg_reserve_object(nw, struct genlmsghdr);
896 ghdr_new->cmd = PFNL_CMD_GETRULE;
897 ghdr_new->version = 0;
898 ghdr_new->reserved = 0;
899
900 PF_RULES_WLOCK();
901 ruleset = pf_find_kruleset(attrs.anchor);
902 if (ruleset == NULL) {
903 PF_RULES_WUNLOCK();
904 error = ENOENT;
905 goto out;
906 }
907
908 rs_num = pf_get_ruleset_number(attrs.action);
909 if (rs_num >= PF_RULESET_MAX) {
910 PF_RULES_WUNLOCK();
911 error = EINVAL;
912 goto out;
913 }
914
915 if (attrs.ticket != ruleset->rules[rs_num].active.ticket) {
916 PF_RULES_WUNLOCK();
917 error = EBUSY;
918 goto out;
919 }
920
921 rule = TAILQ_FIRST(ruleset->rules[rs_num].active.ptr);
922 while ((rule != NULL) && (rule->nr != attrs.nr))
923 rule = TAILQ_NEXT(rule, entries);
924 if (rule == NULL) {
925 PF_RULES_WUNLOCK();
926 error = EBUSY;
927 goto out;
928 }
929
930 nlattr_add_rule_addr(nw, PF_RT_SRC, &rule->src);
931 nlattr_add_rule_addr(nw, PF_RT_DST, &rule->dst);
932 nlattr_add_u32(nw, PF_RT_RIDENTIFIER, rule->ridentifier);
933 nlattr_add_labels(nw, PF_RT_LABELS, rule);
934 nlattr_add_string(nw, PF_RT_IFNAME, rule->ifname);
935 nlattr_add_string(nw, PF_RT_QNAME, rule->qname);
936 nlattr_add_string(nw, PF_RT_PQNAME, rule->pqname);
937 nlattr_add_string(nw, PF_RT_TAGNAME, rule->tagname);
938 nlattr_add_string(nw, PF_RT_MATCH_TAGNAME, rule->match_tagname);
939 nlattr_add_string(nw, PF_RT_OVERLOAD_TBLNAME, rule->overload_tblname);
940 nlattr_add_pool(nw, PF_RT_RPOOL_RDR, &rule->rdr);
941 nlattr_add_pool(nw, PF_RT_RPOOL_NAT, &rule->nat);
942 nlattr_add_pool(nw, PF_RT_RPOOL_RT, &rule->route);
943 nlattr_add_u32(nw, PF_RT_OS_FINGERPRINT, rule->os_fingerprint);
944 nlattr_add_u32(nw, PF_RT_RTABLEID, rule->rtableid);
945 nlattr_add_timeout(nw, PF_RT_TIMEOUT, rule->timeout);
946 nlattr_add_u32(nw, PF_RT_MAX_STATES, rule->max_states);
947 nlattr_add_u32(nw, PF_RT_MAX_SRC_NODES, rule->max_src_nodes);
948 nlattr_add_u32(nw, PF_RT_MAX_SRC_STATES, rule->max_src_states);
949 nlattr_add_u32(nw, PF_RT_MAX_SRC_CONN, rule->max_src_conn);
950 nlattr_add_u32(nw, PF_RT_MAX_SRC_CONN_RATE_LIMIT, rule->max_src_conn_rate.limit);
951 nlattr_add_u32(nw, PF_RT_MAX_SRC_CONN_RATE_SECS, rule->max_src_conn_rate.seconds);
952 nlattr_add_u16(nw, PF_RT_MAX_PKT_SIZE, rule->max_pkt_size);
953
954 nlattr_add_u16(nw, PF_RT_DNPIPE, rule->dnpipe);
955 nlattr_add_u16(nw, PF_RT_DNRPIPE, rule->dnrpipe);
956 nlattr_add_u32(nw, PF_RT_DNFLAGS, rule->free_flags);
957
958 nlattr_add_u32(nw, PF_RT_NR, rule->nr);
959 nlattr_add_u32(nw, PF_RT_PROB, rule->prob);
960 nlattr_add_u32(nw, PF_RT_CUID, rule->cuid);
961 nlattr_add_u32(nw, PF_RT_CPID, rule->cpid);
962
963 nlattr_add_u16(nw, PF_RT_RETURN_ICMP, rule->return_icmp);
964 nlattr_add_u16(nw, PF_RT_RETURN_ICMP6, rule->return_icmp6);
965 nlattr_add_u16(nw, PF_RT_RETURN_ICMP6, rule->return_icmp6);
966 nlattr_add_u16(nw, PF_RT_MAX_MSS, rule->max_mss);
967 nlattr_add_u16(nw, PF_RT_SCRUB_FLAGS, rule->scrub_flags);
968
969 nlattr_add_rule_uid(nw, PF_RT_UID, &rule->uid);
970 nlattr_add_rule_uid(nw, PF_RT_GID, (const struct pf_rule_uid *)&rule->gid);
971
972 nlattr_add_string(nw, PF_RT_RCV_IFNAME, rule->rcv_ifname);
973 nlattr_add_bool(nw, PF_RT_RCV_IFNOT, rule->rcvifnot);
974
975 nlattr_add_u32(nw, PF_RT_RULE_FLAG, rule->rule_flag);
976 nlattr_add_u8(nw, PF_RT_ACTION, rule->action);
977 nlattr_add_u8(nw, PF_RT_DIRECTION, rule->direction);
978 nlattr_add_u8(nw, PF_RT_LOG, rule->log);
979 nlattr_add_u8(nw, PF_RT_LOGIF, rule->logif);
980 nlattr_add_u8(nw, PF_RT_QUICK, rule->quick);
981 nlattr_add_u8(nw, PF_RT_IF_NOT, rule->ifnot);
982 nlattr_add_u8(nw, PF_RT_MATCH_TAG_NOT, rule->match_tag_not);
983 nlattr_add_u8(nw, PF_RT_NATPASS, rule->natpass);
984 nlattr_add_u8(nw, PF_RT_KEEP_STATE, rule->keep_state);
985
986 nlattr_add_u8(nw, PF_RT_AF, rule->af);
987 nlattr_add_u8(nw, PF_RT_NAF, rule->naf);
988 nlattr_add_u8(nw, PF_RT_PROTO, rule->proto);
989
990 nlattr_add_u8(nw, PF_RT_TYPE, rule->type);
991 nlattr_add_u8(nw, PF_RT_CODE, rule->code);
992 nlattr_add_u16(nw, PF_RT_TYPE_2, rule->type);
993 nlattr_add_u16(nw, PF_RT_CODE_2, rule->code);
994
995 nlattr_add_u8(nw, PF_RT_FLAGS, rule->flags);
996 nlattr_add_u8(nw, PF_RT_FLAGSET, rule->flagset);
997 nlattr_add_u8(nw, PF_RT_MIN_TTL, rule->min_ttl);
998 nlattr_add_u8(nw, PF_RT_ALLOW_OPTS, rule->allow_opts);
999 nlattr_add_u8(nw, PF_RT_RT, rule->rt);
1000 nlattr_add_u8(nw, PF_RT_RETURN_TTL, rule->return_ttl);
1001 nlattr_add_u8(nw, PF_RT_TOS, rule->tos);
1002 nlattr_add_u8(nw, PF_RT_SET_TOS, rule->set_tos);
1003 nlattr_add_u8(nw, PF_RT_ANCHOR_RELATIVE, rule->anchor_relative);
1004 nlattr_add_u8(nw, PF_RT_ANCHOR_WILDCARD, rule->anchor_wildcard);
1005 nlattr_add_u8(nw, PF_RT_FLUSH, rule->flush);
1006 nlattr_add_u8(nw, PF_RT_PRIO, rule->prio);
1007 nlattr_add_u8(nw, PF_RT_SET_PRIO, rule->set_prio[0]);
1008 nlattr_add_u8(nw, PF_RT_SET_PRIO_REPLY, rule->set_prio[1]);
1009
1010 nlattr_add_in6_addr(nw, PF_RT_DIVERT_ADDRESS, &rule->divert.addr.v6);
1011 nlattr_add_u16(nw, PF_RT_DIVERT_PORT, rule->divert.port);
1012
1013 nlattr_add_u64(nw, PF_RT_PACKETS_IN, pf_counter_u64_fetch(&rule->packets[0]));
1014 nlattr_add_u64(nw, PF_RT_PACKETS_OUT, pf_counter_u64_fetch(&rule->packets[1]));
1015 nlattr_add_u64(nw, PF_RT_BYTES_IN, pf_counter_u64_fetch(&rule->bytes[0]));
1016 nlattr_add_u64(nw, PF_RT_BYTES_OUT, pf_counter_u64_fetch(&rule->bytes[1]));
1017 nlattr_add_u64(nw, PF_RT_EVALUATIONS, pf_counter_u64_fetch(&rule->evaluations));
1018 nlattr_add_u64(nw, PF_RT_TIMESTAMP, pf_get_timestamp(rule));
1019 nlattr_add_u64(nw, PF_RT_STATES_CUR, counter_u64_fetch(rule->states_cur));
1020 nlattr_add_u64(nw, PF_RT_STATES_TOTAL, counter_u64_fetch(rule->states_tot));
1021 for (pf_sn_types_t sn_type=0; sn_type<PF_SN_MAX; sn_type++)
1022 src_nodes_total += counter_u64_fetch(rule->src_nodes[sn_type]);
1023 nlattr_add_u64(nw, PF_RT_SRC_NODES, src_nodes_total);
1024 nlattr_add_u64(nw, PF_RT_SRC_NODES_LIMIT, counter_u64_fetch(rule->src_nodes[PF_SN_LIMIT]));
1025 nlattr_add_u64(nw, PF_RT_SRC_NODES_NAT, counter_u64_fetch(rule->src_nodes[PF_SN_NAT]));
1026 nlattr_add_u64(nw, PF_RT_SRC_NODES_ROUTE, counter_u64_fetch(rule->src_nodes[PF_SN_ROUTE]));
1027 nlattr_add_pf_threshold(nw, PF_RT_PKTRATE, &rule->pktrate);
1028
1029 error = pf_kanchor_copyout(ruleset, rule, anchor_call, sizeof(anchor_call));
1030 MPASS(error == 0);
1031
1032 nlattr_add_string(nw, PF_RT_ANCHOR_CALL, anchor_call);
1033
1034 if (attrs.clear)
1035 pf_krule_clear_counters(rule);
1036
1037 PF_RULES_WUNLOCK();
1038
1039 if (!nlmsg_end(nw)) {
1040 error = ENOMEM;
1041 goto out;
1042 }
1043
1044 return (0);
1045 out:
1046 nlmsg_abort(nw);
1047 return (error);
1048 }
1049
1050 #define _OUT(_field) offsetof(struct pf_kstate_kill, _field)
1051 static const struct nlattr_parser nla_p_clear_states[] = {
1052 { .type = PF_CS_CMP_ID, .off = _OUT(psk_pfcmp.id), .cb = nlattr_get_uint64 },
1053 { .type = PF_CS_CMP_CREATORID, .off = _OUT(psk_pfcmp.creatorid), .cb = nlattr_get_uint32 },
1054 { .type = PF_CS_CMP_DIR, .off = _OUT(psk_pfcmp.direction), .cb = nlattr_get_uint8 },
1055 { .type = PF_CS_AF, .off = _OUT(psk_af), .cb = nlattr_get_uint8 },
1056 { .type = PF_CS_PROTO, .off = _OUT(psk_proto), .cb = nlattr_get_uint8 },
1057 { .type = PF_CS_SRC, .off = _OUT(psk_src), .arg = &rule_addr_parser, .cb = nlattr_get_nested },
1058 { .type = PF_CS_DST, .off = _OUT(psk_dst), .arg = &rule_addr_parser, .cb = nlattr_get_nested },
1059 { .type = PF_CS_RT_ADDR, .off = _OUT(psk_rt_addr), .arg = &rule_addr_parser, .cb = nlattr_get_nested },
1060 { .type = PF_CS_IFNAME, .off = _OUT(psk_ifname), .arg = (void *)IFNAMSIZ, .cb = nlattr_get_chara },
1061 { .type = PF_CS_LABEL, .off = _OUT(psk_label), .arg = (void *)PF_RULE_LABEL_SIZE, .cb = nlattr_get_chara },
1062 { .type = PF_CS_KILL_MATCH, .off = _OUT(psk_kill_match), .cb = nlattr_get_bool },
1063 { .type = PF_CS_NAT, .off = _OUT(psk_nat), .cb = nlattr_get_bool },
1064 };
1065 #undef _OUT
1066 NL_DECLARE_PARSER(clear_states_parser, struct genlmsghdr, nlf_p_empty, nla_p_clear_states);
1067
1068 static int
pf_handle_killclear_states(struct nlmsghdr * hdr,struct nl_pstate * npt,int cmd)1069 pf_handle_killclear_states(struct nlmsghdr *hdr, struct nl_pstate *npt, int cmd)
1070 {
1071 struct pf_kstate_kill kill = {};
1072 struct epoch_tracker et;
1073 struct nl_writer *nw = npt->nw;
1074 struct genlmsghdr *ghdr_new;
1075 int error;
1076 unsigned int killed = 0;
1077
1078 error = nl_parse_nlmsg(hdr, &clear_states_parser, npt, &kill);
1079 if (error != 0)
1080 return (error);
1081
1082 if (!nlmsg_reply(nw, hdr, sizeof(struct genlmsghdr)))
1083 return (ENOMEM);
1084
1085 ghdr_new = nlmsg_reserve_object(nw, struct genlmsghdr);
1086 ghdr_new->cmd = cmd;
1087 ghdr_new->version = 0;
1088 ghdr_new->reserved = 0;
1089
1090 NET_EPOCH_ENTER(et);
1091 if (cmd == PFNL_CMD_KILLSTATES)
1092 pf_killstates(&kill, &killed);
1093 else
1094 killed = pf_clear_states(&kill);
1095 NET_EPOCH_EXIT(et);
1096
1097 nlattr_add_u32(nw, PF_CS_KILLED, killed);
1098
1099 if (! nlmsg_end(nw)) {
1100 error = ENOMEM;
1101 goto out;
1102 }
1103
1104 return (0);
1105
1106 out:
1107 nlmsg_abort(nw);
1108 return (error);
1109 }
1110
1111 static int
pf_handle_clear_states(struct nlmsghdr * hdr,struct nl_pstate * npt)1112 pf_handle_clear_states(struct nlmsghdr *hdr, struct nl_pstate *npt)
1113 {
1114 return (pf_handle_killclear_states(hdr, npt, PFNL_CMD_CLRSTATES));
1115 }
1116
1117 static int
pf_handle_kill_states(struct nlmsghdr * hdr,struct nl_pstate * npt)1118 pf_handle_kill_states(struct nlmsghdr *hdr, struct nl_pstate *npt)
1119 {
1120 return (pf_handle_killclear_states(hdr, npt, PFNL_CMD_KILLSTATES));
1121 }
1122
1123 struct nl_parsed_set_statusif {
1124 char ifname[IFNAMSIZ];
1125 };
1126 #define _OUT(_field) offsetof(struct nl_parsed_set_statusif, _field)
1127 static const struct nlattr_parser nla_p_set_statusif[] = {
1128 { .type = PF_SS_IFNAME, .off = _OUT(ifname), .arg = (const void *)IFNAMSIZ, .cb = nlattr_get_chara },
1129 };
1130 #undef _OUT
1131 NL_DECLARE_PARSER(set_statusif_parser, struct genlmsghdr, nlf_p_empty, nla_p_set_statusif);
1132
1133 static int
pf_handle_set_statusif(struct nlmsghdr * hdr,struct nl_pstate * npt)1134 pf_handle_set_statusif(struct nlmsghdr *hdr, struct nl_pstate *npt)
1135 {
1136 int error;
1137 struct nl_parsed_set_statusif attrs = {};
1138
1139 error = nl_parse_nlmsg(hdr, &set_statusif_parser, npt, &attrs);
1140 if (error != 0)
1141 return (error);
1142
1143 PF_RULES_WLOCK();
1144 strlcpy(V_pf_status.ifname, attrs.ifname, IFNAMSIZ);
1145 PF_RULES_WUNLOCK();
1146
1147 return (0);
1148 }
1149
1150 static bool
nlattr_add_counters(struct nl_writer * nw,int attr,size_t number,char ** names,counter_u64_t * counters)1151 nlattr_add_counters(struct nl_writer *nw, int attr, size_t number, char **names,
1152 counter_u64_t *counters)
1153 {
1154 for (int i = 0; i < number; i++) {
1155 int off = nlattr_add_nested(nw, attr);
1156 nlattr_add_u32(nw, PF_C_ID, i);
1157 nlattr_add_string(nw, PF_C_NAME, names[i]);
1158 nlattr_add_u64(nw, PF_C_COUNTER, counter_u64_fetch(counters[i]));
1159 nlattr_set_len(nw, off);
1160 }
1161
1162 return (true);
1163 }
1164
1165 static bool
nlattr_add_fcounters(struct nl_writer * nw,int attr,size_t number,char ** names,struct pf_counter_u64 * counters)1166 nlattr_add_fcounters(struct nl_writer *nw, int attr, size_t number, char **names,
1167 struct pf_counter_u64 *counters)
1168 {
1169 for (int i = 0; i < number; i++) {
1170 int off = nlattr_add_nested(nw, attr);
1171 nlattr_add_u32(nw, PF_C_ID, i);
1172 nlattr_add_string(nw, PF_C_NAME, names[i]);
1173 nlattr_add_u64(nw, PF_C_COUNTER, pf_counter_u64_fetch(&counters[i]));
1174 nlattr_set_len(nw, off);
1175 }
1176
1177 return (true);
1178 }
1179
1180 static bool
nlattr_add_u64_array(struct nl_writer * nw,int attr,size_t number,uint64_t * array)1181 nlattr_add_u64_array(struct nl_writer *nw, int attr, size_t number, uint64_t *array)
1182 {
1183 int off = nlattr_add_nested(nw, attr);
1184
1185 for (size_t i = 0; i < number; i++)
1186 nlattr_add_u64(nw, 0, array[i]);
1187
1188 nlattr_set_len(nw, off);
1189
1190 return (true);
1191 }
1192
1193 static int
pf_handle_get_status(struct nlmsghdr * hdr,struct nl_pstate * npt)1194 pf_handle_get_status(struct nlmsghdr *hdr, struct nl_pstate *npt)
1195 {
1196 struct pf_status s;
1197 struct nl_writer *nw = npt->nw;
1198 struct genlmsghdr *ghdr_new;
1199 char *pf_reasons[PFRES_MAX+1] = PFRES_NAMES;
1200 char *pf_lcounter[KLCNT_MAX+1] = KLCNT_NAMES;
1201 char *pf_fcounter[FCNT_MAX+1] = FCNT_NAMES;
1202 time_t since;
1203 int error;
1204
1205 PF_RULES_RLOCK_TRACKER;
1206
1207 if (!nlmsg_reply(nw, hdr, sizeof(struct genlmsghdr)))
1208 return (ENOMEM);
1209
1210 ghdr_new = nlmsg_reserve_object(nw, struct genlmsghdr);
1211 ghdr_new->cmd = PFNL_CMD_GET_STATUS;
1212 ghdr_new->version = 0;
1213 ghdr_new->reserved = 0;
1214
1215 since = time_second - (time_uptime - V_pf_status.since);
1216
1217 PF_RULES_RLOCK();
1218
1219 nlattr_add_string(nw, PF_GS_IFNAME, V_pf_status.ifname);
1220 nlattr_add_bool(nw, PF_GS_RUNNING, V_pf_status.running);
1221 nlattr_add_u32(nw, PF_GS_SINCE, since);
1222 nlattr_add_u32(nw, PF_GS_DEBUG, V_pf_status.debug);
1223 nlattr_add_u32(nw, PF_GS_HOSTID, ntohl(V_pf_status.hostid));
1224 nlattr_add_u32(nw, PF_GS_STATES, V_pf_status.states);
1225 nlattr_add_u32(nw, PF_GS_SRC_NODES, V_pf_status.src_nodes);
1226 nlattr_add_u32(nw, PF_GS_REASSEMBLE, V_pf_status.reass);
1227 nlattr_add_u32(nw, PF_GS_SYNCOOKIES_ACTIVE, V_pf_status.syncookies_active);
1228
1229 nlattr_add_counters(nw, PF_GS_COUNTERS, PFRES_MAX, pf_reasons,
1230 V_pf_status.counters);
1231 nlattr_add_counters(nw, PF_GS_LCOUNTERS, KLCNT_MAX, pf_lcounter,
1232 V_pf_status.lcounters);
1233 nlattr_add_fcounters(nw, PF_GS_FCOUNTERS, FCNT_MAX, pf_fcounter,
1234 V_pf_status.fcounters);
1235 nlattr_add_counters(nw, PF_GS_SCOUNTERS, SCNT_MAX, pf_fcounter,
1236 V_pf_status.scounters);
1237 nlattr_add_counters(nw, PF_GS_NCOUNTERS, NCNT_MAX, pf_fcounter,
1238 V_pf_status.ncounters);
1239 nlattr_add_u64(nw, PF_GS_FRAGMENTS, pf_normalize_get_frag_count());
1240
1241 pfi_update_status(V_pf_status.ifname, &s);
1242 nlattr_add_u64_array(nw, PF_GS_BCOUNTERS, 2 * 2, (uint64_t *)s.bcounters);
1243 nlattr_add_u64_array(nw, PF_GS_PCOUNTERS, 2 * 2 * 2, (uint64_t *)s.pcounters);
1244
1245 nlattr_add(nw, PF_GS_CHKSUM, PF_MD5_DIGEST_LENGTH, V_pf_status.pf_chksum);
1246
1247 PF_RULES_RUNLOCK();
1248
1249 if (!nlmsg_end(nw)) {
1250 error = ENOMEM;
1251 goto out;
1252 }
1253
1254 return (0);
1255
1256 out:
1257 nlmsg_abort(nw);
1258 return (error);
1259 }
1260
1261 static int
pf_handle_clear_status(struct nlmsghdr * hdr,struct nl_pstate * npt)1262 pf_handle_clear_status(struct nlmsghdr *hdr, struct nl_pstate *npt)
1263 {
1264 pf_ioctl_clear_status();
1265
1266 return (0);
1267 }
1268
1269 #define _OUT(_field) offsetof(struct pfioc_natlook, _field)
1270 static const struct nlattr_parser nla_p_natlook[] = {
1271 { .type = PF_NL_AF, .off = _OUT(af), .cb = nlattr_get_uint8 },
1272 { .type = PF_NL_DIRECTION, .off = _OUT(direction), .cb = nlattr_get_uint8 },
1273 { .type = PF_NL_PROTO, .off = _OUT(proto), .cb = nlattr_get_uint8 },
1274 { .type = PF_NL_SRC_ADDR, .off = _OUT(saddr), .cb = nlattr_get_in6_addr },
1275 { .type = PF_NL_DST_ADDR, .off = _OUT(daddr), .cb = nlattr_get_in6_addr },
1276 { .type = PF_NL_SRC_PORT, .off = _OUT(sport), .cb = nlattr_get_uint16 },
1277 { .type = PF_NL_DST_PORT, .off = _OUT(dport), .cb = nlattr_get_uint16 },
1278 };
1279 #undef _OUT
1280 NL_DECLARE_PARSER(natlook_parser, struct genlmsghdr, nlf_p_empty, nla_p_natlook);
1281
1282 static int
pf_handle_natlook(struct nlmsghdr * hdr,struct nl_pstate * npt)1283 pf_handle_natlook(struct nlmsghdr *hdr, struct nl_pstate *npt)
1284 {
1285 struct pfioc_natlook attrs = {};
1286 struct nl_writer *nw = npt->nw;
1287 struct genlmsghdr *ghdr_new;
1288 int error;
1289
1290 error = nl_parse_nlmsg(hdr, &natlook_parser, npt, &attrs);
1291 if (error != 0)
1292 return (error);
1293
1294 error = pf_ioctl_natlook(&attrs);
1295 if (error != 0)
1296 return (error);
1297
1298 if (!nlmsg_reply(nw, hdr, sizeof(struct genlmsghdr)))
1299 return (ENOMEM);
1300
1301 ghdr_new = nlmsg_reserve_object(nw, struct genlmsghdr);
1302 ghdr_new->cmd = PFNL_CMD_NATLOOK;
1303 ghdr_new->version = 0;
1304 ghdr_new->reserved = 0;
1305
1306 nlattr_add_in6_addr(nw, PF_NL_SRC_ADDR, &attrs.rsaddr.v6);
1307 nlattr_add_in6_addr(nw, PF_NL_DST_ADDR, &attrs.rdaddr.v6);
1308 nlattr_add_u16(nw, PF_NL_SRC_PORT, attrs.rsport);
1309 nlattr_add_u16(nw, PF_NL_DST_PORT, attrs.rdport);
1310
1311 if (!nlmsg_end(nw)) {
1312 nlmsg_abort(nw);
1313 return (ENOMEM);
1314 }
1315
1316 return (0);
1317 }
1318
1319 struct pf_nl_set_debug
1320 {
1321 uint32_t level;
1322 };
1323 #define _OUT(_field) offsetof(struct pf_nl_set_debug, _field)
1324 static const struct nlattr_parser nla_p_set_debug[] = {
1325 { .type = PF_SD_LEVEL, .off = _OUT(level), .cb = nlattr_get_uint32 },
1326 };
1327 #undef _OUT
1328 NL_DECLARE_PARSER(set_debug_parser, struct genlmsghdr, nlf_p_empty, nla_p_set_debug);
1329
1330 static int
pf_handle_set_debug(struct nlmsghdr * hdr,struct nl_pstate * npt)1331 pf_handle_set_debug(struct nlmsghdr *hdr, struct nl_pstate *npt)
1332 {
1333 struct pf_nl_set_debug attrs = {};
1334 int error;
1335
1336 error = nl_parse_nlmsg(hdr, &set_debug_parser, npt, &attrs);
1337 if (error != 0)
1338 return (error);
1339
1340 PF_RULES_WLOCK();
1341 V_pf_status.debug = attrs.level;
1342 PF_RULES_WUNLOCK();
1343
1344 return (0);
1345 }
1346
1347 struct pf_nl_set_timeout
1348 {
1349 uint32_t timeout;
1350 uint32_t seconds;
1351 };
1352 #define _OUT(_field) offsetof(struct pf_nl_set_timeout, _field)
1353 static const struct nlattr_parser nla_p_set_timeout[] = {
1354 { .type = PF_TO_TIMEOUT, .off = _OUT(timeout), .cb = nlattr_get_uint32 },
1355 { .type = PF_TO_SECONDS, .off = _OUT(seconds), .cb = nlattr_get_uint32 },
1356 };
1357 #undef _OUT
1358 NL_DECLARE_PARSER(set_timeout_parser, struct genlmsghdr, nlf_p_empty, nla_p_set_timeout);
1359
1360 static int
pf_handle_set_timeout(struct nlmsghdr * hdr,struct nl_pstate * npt)1361 pf_handle_set_timeout(struct nlmsghdr *hdr, struct nl_pstate *npt)
1362 {
1363 struct pf_nl_set_timeout attrs = {};
1364 int error;
1365
1366 error = nl_parse_nlmsg(hdr, &set_timeout_parser, npt, &attrs);
1367 if (error != 0)
1368 return (error);
1369
1370 return (pf_ioctl_set_timeout(attrs.timeout, attrs.seconds, NULL));
1371 }
1372
1373 static int
pf_handle_get_timeout(struct nlmsghdr * hdr,struct nl_pstate * npt)1374 pf_handle_get_timeout(struct nlmsghdr *hdr, struct nl_pstate *npt)
1375 {
1376 struct pf_nl_set_timeout attrs = {};
1377 struct nl_writer *nw = npt->nw;
1378 struct genlmsghdr *ghdr_new;
1379 int error;
1380
1381 error = nl_parse_nlmsg(hdr, &set_timeout_parser, npt, &attrs);
1382 if (error != 0)
1383 return (error);
1384
1385 error = pf_ioctl_get_timeout(attrs.timeout, &attrs.seconds);
1386 if (error != 0)
1387 return (error);
1388
1389 if (!nlmsg_reply(nw, hdr, sizeof(struct genlmsghdr)))
1390 return (ENOMEM);
1391
1392 ghdr_new = nlmsg_reserve_object(nw, struct genlmsghdr);
1393 ghdr_new->cmd = PFNL_CMD_GET_TIMEOUT;
1394 ghdr_new->version = 0;
1395 ghdr_new->reserved = 0;
1396
1397 nlattr_add_u32(nw, PF_TO_SECONDS, attrs.seconds);
1398
1399 if (!nlmsg_end(nw)) {
1400 nlmsg_abort(nw);
1401 return (ENOMEM);
1402 }
1403
1404 return (0);
1405 }
1406
1407 struct pf_nl_set_limit
1408 {
1409 uint32_t index;
1410 uint32_t limit;
1411 };
1412 #define _OUT(_field) offsetof(struct pf_nl_set_limit, _field)
1413 static const struct nlattr_parser nla_p_set_limit[] = {
1414 { .type = PF_LI_INDEX, .off = _OUT(index), .cb = nlattr_get_uint32 },
1415 { .type = PF_LI_LIMIT, .off = _OUT(limit), .cb = nlattr_get_uint32 },
1416 };
1417 #undef _OUT
1418 NL_DECLARE_PARSER(set_limit_parser, struct genlmsghdr, nlf_p_empty, nla_p_set_limit);
1419
1420 static int
pf_handle_set_limit(struct nlmsghdr * hdr,struct nl_pstate * npt)1421 pf_handle_set_limit(struct nlmsghdr *hdr, struct nl_pstate *npt)
1422 {
1423 struct pf_nl_set_limit attrs = {};
1424 int error;
1425
1426 error = nl_parse_nlmsg(hdr, &set_limit_parser, npt, &attrs);
1427 if (error != 0)
1428 return (error);
1429
1430 return (pf_ioctl_set_limit(attrs.index, attrs.limit, NULL));
1431 }
1432
1433 static int
pf_handle_get_limit(struct nlmsghdr * hdr,struct nl_pstate * npt)1434 pf_handle_get_limit(struct nlmsghdr *hdr, struct nl_pstate *npt)
1435 {
1436 struct pf_nl_set_limit attrs = {};
1437 struct nl_writer *nw = npt->nw;
1438 struct genlmsghdr *ghdr_new;
1439 int error;
1440
1441 error = nl_parse_nlmsg(hdr, &set_limit_parser, npt, &attrs);
1442 if (error != 0)
1443 return (error);
1444
1445 error = pf_ioctl_get_limit(attrs.index, &attrs.limit);
1446 if (error != 0)
1447 return (error);
1448
1449 if (!nlmsg_reply(nw, hdr, sizeof(struct genlmsghdr)))
1450 return (ENOMEM);
1451
1452 ghdr_new = nlmsg_reserve_object(nw, struct genlmsghdr);
1453 ghdr_new->cmd = PFNL_CMD_GET_LIMIT;
1454 ghdr_new->version = 0;
1455 ghdr_new->reserved = 0;
1456
1457 nlattr_add_u32(nw, PF_LI_LIMIT, attrs.limit);
1458
1459 if (!nlmsg_end(nw)) {
1460 nlmsg_abort(nw);
1461 return (ENOMEM);
1462 }
1463
1464 return (0);
1465 }
1466
1467 static int
pf_handle_begin_addrs(struct nlmsghdr * hdr,struct nl_pstate * npt)1468 pf_handle_begin_addrs(struct nlmsghdr *hdr, struct nl_pstate *npt)
1469 {
1470 struct nl_writer *nw = npt->nw;
1471 struct genlmsghdr *ghdr_new;
1472 uint32_t ticket;
1473 int error;
1474
1475 error = pf_ioctl_begin_addrs(&ticket);
1476 if (error != 0)
1477 return (error);
1478
1479 if (!nlmsg_reply(nw, hdr, sizeof(struct genlmsghdr)))
1480 return (ENOMEM);
1481
1482 ghdr_new = nlmsg_reserve_object(nw, struct genlmsghdr);
1483 ghdr_new->cmd = PFNL_CMD_BEGIN_ADDRS;
1484 ghdr_new->version = 0;
1485 ghdr_new->reserved = 0;
1486
1487 nlattr_add_u32(nw, PF_BA_TICKET, ticket);
1488
1489 if (!nlmsg_end(nw)) {
1490 nlmsg_abort(nw);
1491 return (ENOMEM);
1492 }
1493
1494 return (0);
1495 }
1496
1497 static bool
nlattr_add_pool_addr(struct nl_writer * nw,int attrtype,struct pf_pooladdr * a)1498 nlattr_add_pool_addr(struct nl_writer *nw, int attrtype, struct pf_pooladdr *a)
1499 {
1500 int off;
1501
1502 off = nlattr_add_nested(nw, attrtype);
1503
1504 nlattr_add_addr_wrap(nw, PF_PA_ADDR, &a->addr);
1505 nlattr_add_string(nw, PF_PA_IFNAME, a->ifname);
1506
1507 nlattr_set_len(nw, off);
1508
1509 return (true);
1510 }
1511
1512 #define _OUT(_field) offsetof(struct pf_pooladdr, _field)
1513 static const struct nlattr_parser nla_p_pool_addr[] = {
1514 { .type = PF_PA_ADDR, .off = _OUT(addr), .arg = &addr_wrap_parser, .cb = nlattr_get_nested },
1515 { .type = PF_PA_IFNAME, .off = _OUT(ifname), .arg = (void *)IFNAMSIZ, .cb = nlattr_get_chara },
1516 };
1517 NL_DECLARE_ATTR_PARSER(pool_addr_parser, nla_p_pool_addr);
1518 #undef _OUT
1519
1520 #define _OUT(_field) offsetof(struct pf_nl_pooladdr, _field)
1521 static const struct nlattr_parser nla_p_add_addr[] = {
1522 { .type = PF_AA_ACTION, .off = _OUT(action), .cb = nlattr_get_uint32 },
1523 { .type = PF_AA_TICKET, .off = _OUT(ticket), .cb = nlattr_get_uint32 },
1524 { .type = PF_AA_NR, .off = _OUT(nr), .cb = nlattr_get_uint32 },
1525 { .type = PF_AA_R_NUM, .off = _OUT(r_num), .cb = nlattr_get_uint32 },
1526 { .type = PF_AA_R_ACTION, .off = _OUT(r_action), .cb = nlattr_get_uint8 },
1527 { .type = PF_AA_R_LAST, .off = _OUT(r_last), .cb = nlattr_get_uint8 },
1528 { .type = PF_AA_AF, .off = _OUT(af), .cb = nlattr_get_uint8 },
1529 { .type = PF_AA_ANCHOR, .off = _OUT(anchor), .arg = (void *)MAXPATHLEN, .cb = nlattr_get_chara },
1530 { .type = PF_AA_ADDR, .off = _OUT(addr), .arg = &pool_addr_parser, .cb = nlattr_get_nested },
1531 { .type = PF_AA_WHICH, .off = _OUT(which), .cb = nlattr_get_uint32 },
1532 };
1533 #undef _OUT
1534 NL_DECLARE_PARSER(add_addr_parser, struct genlmsghdr, nlf_p_empty, nla_p_add_addr);
1535
1536 static int
pf_handle_add_addr(struct nlmsghdr * hdr,struct nl_pstate * npt)1537 pf_handle_add_addr(struct nlmsghdr *hdr, struct nl_pstate *npt)
1538 {
1539 struct pf_nl_pooladdr attrs = { 0 };
1540 int error;
1541
1542 error = nl_parse_nlmsg(hdr, &add_addr_parser, npt, &attrs);
1543 if (error != 0)
1544 return (error);
1545
1546 if (attrs.which == 0)
1547 attrs.which = PF_RDR;
1548
1549 error = pf_ioctl_add_addr(&attrs);
1550
1551 return (error);
1552 }
1553
1554 static int
pf_handle_get_addrs(struct nlmsghdr * hdr,struct nl_pstate * npt)1555 pf_handle_get_addrs(struct nlmsghdr *hdr, struct nl_pstate *npt)
1556 {
1557 struct pf_nl_pooladdr attrs = { 0 };
1558 struct nl_writer *nw = npt->nw;
1559 struct genlmsghdr *ghdr_new;
1560 int error;
1561
1562 error = nl_parse_nlmsg(hdr, &add_addr_parser, npt, &attrs);
1563 if (error != 0)
1564 return (error);
1565
1566 if (attrs.which == 0)
1567 attrs.which = PF_RDR;
1568
1569 error = pf_ioctl_get_addrs(&attrs);
1570 if (error != 0)
1571 return (error);
1572
1573 if (!nlmsg_reply(nw, hdr, sizeof(struct genlmsghdr)))
1574 return (ENOMEM);
1575
1576 ghdr_new = nlmsg_reserve_object(nw, struct genlmsghdr);
1577 ghdr_new->cmd = PFNL_CMD_GET_ADDRS;
1578 ghdr_new->version = 0;
1579 ghdr_new->reserved = 0;
1580
1581 nlattr_add_u32(nw, PF_AA_NR, attrs.nr);
1582
1583 if (!nlmsg_end(nw)) {
1584 nlmsg_abort(nw);
1585 return (ENOMEM);
1586 }
1587
1588 return (error);
1589 }
1590
1591 static int
pf_handle_get_addr(struct nlmsghdr * hdr,struct nl_pstate * npt)1592 pf_handle_get_addr(struct nlmsghdr *hdr, struct nl_pstate *npt)
1593 {
1594 struct pf_nl_pooladdr attrs = { 0 };
1595 struct nl_writer *nw = npt->nw;
1596 struct genlmsghdr *ghdr_new;
1597 int error;
1598
1599 error = nl_parse_nlmsg(hdr, &add_addr_parser, npt, &attrs);
1600 if (error != 0)
1601 return (error);
1602
1603 if (attrs.which == 0)
1604 attrs.which = PF_RDR;
1605
1606 error = pf_ioctl_get_addr(&attrs);
1607 if (error != 0)
1608 return (error);
1609
1610 if (!nlmsg_reply(nw, hdr, sizeof(struct genlmsghdr)))
1611 return (ENOMEM);
1612
1613 ghdr_new = nlmsg_reserve_object(nw, struct genlmsghdr);
1614 ghdr_new->cmd = PFNL_CMD_GET_ADDR;
1615 ghdr_new->version = 0;
1616 ghdr_new->reserved = 0;
1617
1618 nlattr_add_u32(nw, PF_AA_ACTION, attrs.action);
1619 nlattr_add_u32(nw, PF_AA_TICKET, attrs.ticket);
1620 nlattr_add_u32(nw, PF_AA_NR, attrs.nr);
1621 nlattr_add_u32(nw, PF_AA_R_NUM, attrs.r_num);
1622 nlattr_add_u8(nw, PF_AA_R_ACTION, attrs.r_action);
1623 nlattr_add_u8(nw, PF_AA_R_LAST, attrs.r_last);
1624 nlattr_add_u8(nw, PF_AA_AF, attrs.af);
1625 nlattr_add_string(nw, PF_AA_ANCHOR, attrs.anchor);
1626 nlattr_add_pool_addr(nw, PF_AA_ADDR, &attrs.addr);
1627
1628 if (!nlmsg_end(nw)) {
1629 nlmsg_abort(nw);
1630 return (ENOMEM);
1631 }
1632
1633 return (0);
1634 }
1635
1636 #define _OUT(_field) offsetof(struct pfioc_ruleset, _field)
1637 static const struct nlattr_parser nla_p_ruleset[] = {
1638 { .type = PF_RS_PATH, .off = _OUT(path), .arg = (void *)MAXPATHLEN, .cb = nlattr_get_chara },
1639 { .type = PF_RS_NR, .off = _OUT(nr), .cb = nlattr_get_uint32 },
1640 };
1641 NL_DECLARE_PARSER(ruleset_parser, struct genlmsghdr, nlf_p_empty, nla_p_ruleset);
1642 #undef _OUT
1643
1644 static int
pf_handle_get_rulesets(struct nlmsghdr * hdr,struct nl_pstate * npt)1645 pf_handle_get_rulesets(struct nlmsghdr *hdr, struct nl_pstate *npt)
1646 {
1647 struct pfioc_ruleset attrs = { 0 };
1648 struct nl_writer *nw = npt->nw;
1649 struct genlmsghdr *ghdr_new;
1650 int error;
1651
1652 error = nl_parse_nlmsg(hdr, &ruleset_parser, npt, &attrs);
1653 if (error != 0)
1654 return (error);
1655
1656 error = pf_ioctl_get_rulesets(&attrs);
1657 if (error != 0)
1658 return (error);
1659
1660 if (!nlmsg_reply(nw, hdr, sizeof(struct genlmsghdr)))
1661 return (ENOMEM);
1662
1663 ghdr_new = nlmsg_reserve_object(nw, struct genlmsghdr);
1664 ghdr_new->cmd = PFNL_CMD_GET_RULESETS;
1665 ghdr_new->version = 0;
1666 ghdr_new->reserved = 0;
1667
1668 nlattr_add_u32(nw, PF_RS_NR, attrs.nr);
1669
1670 if (!nlmsg_end(nw)) {
1671 nlmsg_abort(nw);
1672 return (ENOMEM);
1673 }
1674
1675 return (0);
1676 }
1677
1678 static int
pf_handle_get_ruleset(struct nlmsghdr * hdr,struct nl_pstate * npt)1679 pf_handle_get_ruleset(struct nlmsghdr *hdr, struct nl_pstate *npt)
1680 {
1681 struct pfioc_ruleset attrs = { 0 };
1682 struct nl_writer *nw = npt->nw;
1683 struct genlmsghdr *ghdr_new;
1684 int error;
1685
1686 error = nl_parse_nlmsg(hdr, &ruleset_parser, npt, &attrs);
1687 if (error)
1688 return (error);
1689
1690 error = pf_ioctl_get_ruleset(&attrs);
1691 if (error != 0)
1692 return (error);
1693
1694 if (!nlmsg_reply(nw, hdr, sizeof(struct genlmsghdr)))
1695 return (ENOMEM);
1696
1697 ghdr_new = nlmsg_reserve_object(nw, struct genlmsghdr);
1698 ghdr_new->cmd = PFNL_CMD_GET_RULESET;
1699 ghdr_new->version = 0;
1700 ghdr_new->reserved = 0;
1701
1702 nlattr_add_string(nw, PF_RS_NAME, attrs.name);
1703
1704 if (!nlmsg_end(nw)) {
1705 nlmsg_abort(nw);
1706 return (ENOMEM);
1707 }
1708
1709 return (0);
1710 }
1711
1712 static bool
nlattr_add_pf_threshold(struct nl_writer * nw,int attrtype,struct pf_kthreshold * t)1713 nlattr_add_pf_threshold(struct nl_writer *nw, int attrtype,
1714 struct pf_kthreshold *t)
1715 {
1716 int off = nlattr_add_nested(nw, attrtype);
1717 int conn_rate_count = 0;
1718
1719 /* Adjust the connection rate estimate. */
1720 if (t->cr != NULL)
1721 conn_rate_count = counter_rate_get(t->cr);
1722
1723 nlattr_add_u32(nw, PF_TH_LIMIT, t->limit);
1724 nlattr_add_u32(nw, PF_TH_SECONDS, t->seconds);
1725 nlattr_add_u32(nw, PF_TH_COUNT, conn_rate_count);
1726
1727 nlattr_set_len(nw, off);
1728
1729 return (true);
1730 }
1731
1732 static int
pf_handle_get_srcnodes(struct nlmsghdr * hdr,struct nl_pstate * npt)1733 pf_handle_get_srcnodes(struct nlmsghdr *hdr, struct nl_pstate *npt)
1734 {
1735 struct nl_writer *nw = npt->nw;
1736 struct genlmsghdr *ghdr_new;
1737 struct pf_ksrc_node *n;
1738 struct pf_srchash *sh;
1739 int i;
1740 int secs;
1741
1742 hdr->nlmsg_flags |= NLM_F_MULTI;
1743
1744 for (i = 0, sh = V_pf_srchash; i <= V_pf_srchashmask;
1745 i++, sh++) {
1746 /* Avoid locking empty rows. */
1747 if (LIST_EMPTY(&sh->nodes))
1748 continue;
1749
1750 PF_HASHROW_LOCK(sh);
1751 secs = time_uptime;
1752
1753 LIST_FOREACH(n, &sh->nodes, entry) {
1754 if (!nlmsg_reply(nw, hdr, sizeof(struct genlmsghdr))) {
1755 nlmsg_abort(nw);
1756 return (ENOMEM);
1757 }
1758
1759 ghdr_new = nlmsg_reserve_object(nw, struct genlmsghdr);
1760 ghdr_new->cmd = PFNL_CMD_GET_SRCNODES;
1761 ghdr_new->version = 0;
1762 ghdr_new->reserved = 0;
1763
1764 nlattr_add_in6_addr(nw, PF_SN_ADDR, &n->addr.v6);
1765 nlattr_add_in6_addr(nw, PF_SN_RADDR, &n->raddr.v6);
1766 nlattr_add_u32(nw, PF_SN_RULE_NR, n->rule->nr);
1767 nlattr_add_u64(nw, PF_SN_BYTES_IN, counter_u64_fetch(n->bytes[0]));
1768 nlattr_add_u64(nw, PF_SN_BYTES_OUT, counter_u64_fetch(n->bytes[1]));
1769 nlattr_add_u64(nw, PF_SN_PACKETS_IN, counter_u64_fetch(n->packets[0]));
1770 nlattr_add_u64(nw, PF_SN_PACKETS_OUT, counter_u64_fetch(n->packets[1]));
1771 nlattr_add_u32(nw, PF_SN_STATES, n->states);
1772 nlattr_add_u32(nw, PF_SN_CONNECTIONS, n->conn);
1773 nlattr_add_u8(nw, PF_SN_AF, n->af);
1774 nlattr_add_u8(nw, PF_SN_RAF, n->raf);
1775 nlattr_add_u8(nw, PF_SN_RULE_TYPE, n->ruletype);
1776
1777 nlattr_add_u64(nw, PF_SN_CREATION, secs - n->creation);
1778 if (n->expire > secs)
1779 nlattr_add_u64(nw, PF_SN_EXPIRE, n->expire - secs);
1780 else
1781 nlattr_add_u64(nw, PF_SN_EXPIRE, 0);
1782
1783 nlattr_add_pf_threshold(nw, PF_SN_CONNECTION_RATE,
1784 &n->conn_rate);
1785
1786 nlattr_add_u8(nw, PF_SN_NODE_TYPE, n->type);
1787
1788 if (!nlmsg_end(nw)) {
1789 PF_HASHROW_UNLOCK(sh);
1790 nlmsg_abort(nw);
1791 return (ENOMEM);
1792 }
1793 }
1794 PF_HASHROW_UNLOCK(sh);
1795 }
1796
1797 return (0);
1798 }
1799
1800 #define _OUT(_field) offsetof(struct pfioc_table, _field)
1801 static const struct nlattr_parser nla_p_table[] = {
1802 { .type = PF_T_ANCHOR, .off = _OUT(pfrio_table.pfrt_anchor), .arg = (void *)MAXPATHLEN, .cb = nlattr_get_chara },
1803 { .type = PF_T_NAME, .off = _OUT(pfrio_table.pfrt_name), .arg = (void *)PF_TABLE_NAME_SIZE, .cb = nlattr_get_chara },
1804 { .type = PF_T_TABLE_FLAGS, .off = _OUT(pfrio_table.pfrt_flags), .cb = nlattr_get_uint32 },
1805 { .type = PF_T_FLAGS, .off = _OUT(pfrio_flags), .cb = nlattr_get_uint32 },
1806 };
1807 static const struct nlfield_parser nlf_p_table[] = {};
1808 NL_DECLARE_PARSER(table_parser, struct genlmsghdr, nlf_p_table, nla_p_table);
1809 #undef _OUT
1810 static int
pf_handle_clear_tables(struct nlmsghdr * hdr,struct nl_pstate * npt)1811 pf_handle_clear_tables(struct nlmsghdr *hdr, struct nl_pstate *npt)
1812 {
1813 struct pfioc_table attrs = { 0 };
1814 struct nl_writer *nw = npt->nw;
1815 struct genlmsghdr *ghdr_new;
1816 int ndel = 0;
1817 int error;
1818
1819 error = nl_parse_nlmsg(hdr, &table_parser, npt, &attrs);
1820 if (error != 0)
1821 return (error);
1822
1823 PF_RULES_WLOCK();
1824 error = pfr_clr_tables(&attrs.pfrio_table, &ndel, attrs.pfrio_flags | PFR_FLAG_USERIOCTL);
1825 PF_RULES_WUNLOCK();
1826 if (error != 0)
1827 return (error);
1828
1829 if (!nlmsg_reply(nw, hdr, sizeof(struct genlmsghdr)))
1830 return (ENOMEM);
1831
1832 ghdr_new = nlmsg_reserve_object(nw, struct genlmsghdr);
1833 ghdr_new->cmd = PFNL_CMD_CLEAR_TABLES;
1834 ghdr_new->version = 0;
1835 ghdr_new->reserved = 0;
1836
1837 nlattr_add_u32(nw, PF_T_NBR_DELETED, ndel);
1838
1839 if (!nlmsg_end(nw)) {
1840 nlmsg_abort(nw);
1841 return (ENOMEM);
1842 }
1843
1844 return (0);
1845 }
1846
1847 static int
pf_handle_add_table(struct nlmsghdr * hdr,struct nl_pstate * npt)1848 pf_handle_add_table(struct nlmsghdr *hdr, struct nl_pstate *npt)
1849 {
1850 struct pfioc_table attrs = { 0 };
1851 struct nl_writer *nw = npt->nw;
1852 struct genlmsghdr *ghdr_new;
1853 int error;
1854
1855 error = nl_parse_nlmsg(hdr, &table_parser, npt, &attrs);
1856 if (error != 0)
1857 return (error);
1858
1859 PF_RULES_WLOCK();
1860 error = pfr_add_tables(&attrs.pfrio_table, 1, &attrs.pfrio_nadd,
1861 attrs.pfrio_flags | PFR_FLAG_USERIOCTL);
1862 PF_RULES_WUNLOCK();
1863 if (error != 0)
1864 return (error);
1865
1866 if (!nlmsg_reply(nw, hdr, sizeof(struct genlmsghdr)))
1867 return (ENOMEM);
1868
1869 ghdr_new = nlmsg_reserve_object(nw, struct genlmsghdr);
1870 ghdr_new->cmd = PFNL_CMD_ADD_TABLE;
1871 ghdr_new->version = 0;
1872 ghdr_new->reserved = 0;
1873
1874 nlattr_add_u32(nw, PF_T_NBR_ADDED, attrs.pfrio_nadd);
1875
1876 if (!nlmsg_end(nw)) {
1877 nlmsg_abort(nw);
1878 return (ENOMEM);
1879 }
1880
1881 return (0);
1882 }
1883
1884 static int
pf_handle_del_table(struct nlmsghdr * hdr,struct nl_pstate * npt)1885 pf_handle_del_table(struct nlmsghdr *hdr, struct nl_pstate *npt)
1886 {
1887 struct pfioc_table attrs = { 0 };
1888 struct nl_writer *nw = npt->nw;
1889 struct genlmsghdr *ghdr_new;
1890 int error;
1891
1892 error = nl_parse_nlmsg(hdr, &table_parser, npt, &attrs);
1893 if (error != 0)
1894 return (error);
1895
1896 PF_RULES_WLOCK();
1897 error = pfr_del_tables(&attrs.pfrio_table, 1, &attrs.pfrio_ndel,
1898 attrs.pfrio_flags | PFR_FLAG_USERIOCTL);
1899 PF_RULES_WUNLOCK();
1900 if (error != 0)
1901 return (error);
1902
1903 if (!nlmsg_reply(nw, hdr, sizeof(struct genlmsghdr)))
1904 return (ENOMEM);
1905
1906 ghdr_new = nlmsg_reserve_object(nw, struct genlmsghdr);
1907 ghdr_new->cmd = PFNL_CMD_ADD_TABLE;
1908 ghdr_new->version = 0;
1909 ghdr_new->reserved = 0;
1910
1911 nlattr_add_u32(nw, PF_T_NBR_DELETED, attrs.pfrio_ndel);
1912
1913 if (!nlmsg_end(nw)) {
1914 nlmsg_abort(nw);
1915 return (ENOMEM);
1916 }
1917
1918 return (0);
1919 }
1920
1921 static bool
nlattr_add_pfr_table(struct nl_writer * nw,int attrtype,struct pfr_table * t)1922 nlattr_add_pfr_table(struct nl_writer *nw, int attrtype,
1923 struct pfr_table *t)
1924 {
1925 int off = nlattr_add_nested(nw, attrtype);
1926
1927 nlattr_add_string(nw, PF_T_ANCHOR, t->pfrt_anchor);
1928 nlattr_add_string(nw, PF_T_NAME, t->pfrt_name);
1929 nlattr_add_u32(nw, PF_T_TABLE_FLAGS, t->pfrt_flags);
1930
1931 nlattr_set_len(nw, off);
1932
1933 return (true);
1934 }
1935
1936 static int
pf_handle_get_tstats(struct nlmsghdr * hdr,struct nl_pstate * npt)1937 pf_handle_get_tstats(struct nlmsghdr *hdr, struct nl_pstate *npt)
1938 {
1939 struct pfioc_table attrs = { 0 };
1940 struct nl_writer *nw = npt->nw;
1941 struct genlmsghdr *ghdr_new;
1942 struct pfr_tstats *pfrtstats;
1943 int error;
1944 int n;
1945
1946 PF_RULES_RLOCK_TRACKER;
1947
1948 error = nl_parse_nlmsg(hdr, &table_parser, npt, &attrs);
1949 if (error != 0)
1950 return (error);
1951
1952 PF_TABLE_STATS_LOCK();
1953 PF_RULES_RLOCK();
1954
1955 n = pfr_table_count(&attrs.pfrio_table, attrs.pfrio_flags);
1956 pfrtstats = mallocarray(n,
1957 sizeof(struct pfr_tstats), M_PF, M_NOWAIT | M_ZERO);
1958
1959 error = pfr_get_tstats(&attrs.pfrio_table, pfrtstats,
1960 &n, attrs.pfrio_flags | PFR_FLAG_USERIOCTL);
1961
1962 PF_RULES_RUNLOCK();
1963 PF_TABLE_STATS_UNLOCK();
1964
1965 if (error == 0) {
1966 hdr->nlmsg_flags |= NLM_F_MULTI;
1967
1968 for (int i = 0; i < n; i++) {
1969 uint64_t refcnt[PFR_REFCNT_MAX];
1970
1971 if (!nlmsg_reply(nw, hdr, sizeof(struct genlmsghdr))) {
1972 error = ENOMEM;
1973 break;
1974 }
1975
1976 ghdr_new = nlmsg_reserve_object(nw, struct genlmsghdr);
1977 ghdr_new->cmd = PFNL_CMD_GET_TSTATS;
1978 ghdr_new->version = 0;
1979 ghdr_new->reserved = 0;
1980
1981 nlattr_add_pfr_table(nw, PF_TS_TABLE,
1982 &pfrtstats[i].pfrts_t);
1983 nlattr_add_u64_array(nw, PF_TS_PACKETS,
1984 PFR_DIR_MAX * PFR_OP_TABLE_MAX,
1985 (uint64_t *)pfrtstats[i].pfrts_packets);
1986 nlattr_add_u64_array(nw, PF_TS_BYTES,
1987 PFR_DIR_MAX * PFR_OP_TABLE_MAX,
1988 (uint64_t *)pfrtstats[i].pfrts_bytes);
1989 nlattr_add_u64(nw, PF_TS_MATCH,
1990 pfrtstats[i].pfrts_match);
1991 nlattr_add_u64(nw, PF_TS_NOMATCH,
1992 pfrtstats[i].pfrts_nomatch);
1993 nlattr_add_u64(nw, PF_TS_TZERO,
1994 pfrtstats[i].pfrts_tzero);
1995 nlattr_add_u64(nw, PF_TS_CNT, pfrtstats[i].pfrts_cnt);
1996
1997 for (int j = 0; j < PFR_REFCNT_MAX; j++)
1998 refcnt[j] = pfrtstats[i].pfrts_refcnt[j];
1999
2000 nlattr_add_u64_array(nw, PF_TS_REFCNT, PFR_REFCNT_MAX,
2001 refcnt);
2002
2003 if (! nlmsg_end(nw)) {
2004 error = ENOMEM;
2005 break;
2006 }
2007 }
2008 }
2009 free(pfrtstats, M_PF);
2010
2011 if (!nlmsg_end_dump(npt->nw, error, hdr)) {
2012 NL_LOG(LOG_DEBUG, "Unable to finalize the dump");
2013 return (ENOMEM);
2014 }
2015
2016 return (error);
2017 }
2018
2019 static int
pf_handle_clear_tstats(struct nlmsghdr * hdr,struct nl_pstate * npt)2020 pf_handle_clear_tstats(struct nlmsghdr *hdr, struct nl_pstate *npt)
2021 {
2022 struct pfioc_table attrs = { 0 };
2023 struct nl_writer *nw = npt->nw;
2024 struct genlmsghdr *ghdr_new;
2025 int error;
2026 int nzero;
2027
2028 PF_RULES_RLOCK_TRACKER;
2029
2030 error = nl_parse_nlmsg(hdr, &table_parser, npt, &attrs);
2031 if (error != 0)
2032 return (error);
2033
2034 PF_TABLE_STATS_LOCK();
2035 PF_RULES_RLOCK();
2036 error = pfr_clr_tstats(&attrs.pfrio_table, 1,
2037 &nzero, attrs.pfrio_flags | PFR_FLAG_USERIOCTL);
2038 PF_RULES_RUNLOCK();
2039 PF_TABLE_STATS_UNLOCK();
2040
2041 if (!nlmsg_reply(nw, hdr, sizeof(struct genlmsghdr)))
2042 return (ENOMEM);
2043
2044 ghdr_new = nlmsg_reserve_object(nw, struct genlmsghdr);
2045 ghdr_new->cmd = PFNL_CMD_CLR_TSTATS;
2046 ghdr_new->version = 0;
2047 ghdr_new->reserved = 0;
2048
2049 nlattr_add_u64(nw, PF_TS_NZERO, nzero);
2050
2051 if (! nlmsg_end(nw))
2052 error = ENOMEM;
2053
2054 return (error);
2055 }
2056
2057 static int
pf_handle_clear_addrs(struct nlmsghdr * hdr,struct nl_pstate * npt)2058 pf_handle_clear_addrs(struct nlmsghdr *hdr, struct nl_pstate *npt)
2059 {
2060 struct pfioc_table attrs = { 0 };
2061 struct nl_writer *nw = npt->nw;
2062 struct genlmsghdr *ghdr_new;
2063 int error;
2064 int ndel;
2065
2066 error = nl_parse_nlmsg(hdr, &table_parser, npt, &attrs);
2067 if (error != 0)
2068 return (error);
2069
2070 PF_RULES_WLOCK();
2071 error = pfr_clr_addrs(&attrs.pfrio_table, &ndel,
2072 attrs.pfrio_flags | PFR_FLAG_USERIOCTL);
2073 PF_RULES_WUNLOCK();
2074
2075 if (error)
2076 return (error);
2077
2078 if (!nlmsg_reply(nw, hdr, sizeof(struct genlmsghdr)))
2079 return (ENOMEM);
2080
2081 ghdr_new = nlmsg_reserve_object(nw, struct genlmsghdr);
2082 ghdr_new->cmd = PFNL_CMD_CLR_ADDRS;
2083 ghdr_new->version = 0;
2084 ghdr_new->reserved = 0;
2085
2086 nlattr_add_u64(nw, PF_T_NBR_DELETED, ndel);
2087
2088 if (!nlmsg_end(nw))
2089 return (ENOMEM);
2090
2091 return (error);
2092 }
2093
2094 TAILQ_HEAD(pfr_addrq, pfr_addr_item);
2095 struct nl_parsed_table_addrs {
2096 struct pfr_table table;
2097 uint32_t flags;
2098 struct pfr_addr addrs[256];
2099 size_t addr_count;
2100 int nadd;
2101 int ndel;
2102 };
2103 #define _OUT(_field) offsetof(struct pfr_addr, _field)
2104 static const struct nlattr_parser nla_p_pfr_addr[] = {
2105 { .type = PFR_A_AF, .off = _OUT(pfra_af), .cb = nlattr_get_uint8 },
2106 { .type = PFR_A_NET, .off = _OUT(pfra_net), .cb = nlattr_get_uint8 },
2107 { .type = PFR_A_NOT, .off = _OUT(pfra_not), .cb = nlattr_get_bool },
2108 { .type = PFR_A_ADDR, .off = _OUT(pfra_u), .cb = nlattr_get_in6_addr },
2109 };
2110 #undef _OUT
2111 NL_DECLARE_ATTR_PARSER(pfra_addr_parser, nla_p_pfr_addr);
2112
2113 static int
nlattr_get_pfr_addr(struct nlattr * nla,struct nl_pstate * npt,const void * arg,void * target)2114 nlattr_get_pfr_addr(struct nlattr *nla, struct nl_pstate *npt, const void *arg,
2115 void *target)
2116 {
2117 struct nl_parsed_table_addrs *attrs = target;
2118 struct pfr_addr addr = { 0 };
2119 int error;
2120
2121 if (attrs->addr_count >= nitems(attrs->addrs))
2122 return (E2BIG);
2123
2124 error = nlattr_get_nested(nla, npt, &pfra_addr_parser, &addr);
2125 if (error != 0)
2126 return (error);
2127
2128 memcpy(&attrs->addrs[attrs->addr_count], &addr, sizeof(addr));
2129 attrs->addr_count++;
2130
2131 return (0);
2132 }
2133
2134 NL_DECLARE_ATTR_PARSER(nested_table_parser, nla_p_table);
2135
2136 #define _OUT(_field) offsetof(struct nl_parsed_table_addrs, _field)
2137 static const struct nlattr_parser nla_p_table_addr[] = {
2138 { .type = PF_TA_TABLE, .off = _OUT(table), .arg = &nested_table_parser, .cb = nlattr_get_nested },
2139 { .type = PF_TA_ADDR, .cb = nlattr_get_pfr_addr },
2140 { .type = PF_TA_FLAGS, .off = _OUT(flags), .cb = nlattr_get_uint32 },
2141 };
2142 NL_DECLARE_PARSER(table_addr_parser, struct genlmsghdr, nlf_p_empty, nla_p_table_addr);
2143 #undef _OUT
2144
2145 static int
pf_handle_table_add_addrs(struct nlmsghdr * hdr,struct nl_pstate * npt)2146 pf_handle_table_add_addrs(struct nlmsghdr *hdr, struct nl_pstate *npt)
2147 {
2148 struct nl_parsed_table_addrs attrs = { 0 };
2149 struct nl_writer *nw = npt->nw;
2150 struct genlmsghdr *ghdr_new;
2151 int error;
2152
2153 error = nl_parse_nlmsg(hdr, &table_addr_parser, npt, &attrs);
2154 if (error != 0)
2155 return (error);
2156
2157 PF_RULES_WLOCK();
2158 error = pfr_add_addrs(&attrs.table, &attrs.addrs[0],
2159 attrs.addr_count, &attrs.nadd, attrs.flags | PFR_FLAG_USERIOCTL);
2160 PF_RULES_WUNLOCK();
2161
2162 if (!nlmsg_reply(nw, hdr, sizeof(struct genlmsghdr)))
2163 return (ENOMEM);
2164
2165 ghdr_new = nlmsg_reserve_object(nw, struct genlmsghdr);
2166 ghdr_new->cmd = PFNL_CMD_TABLE_ADD_ADDR;
2167 ghdr_new->version = 0;
2168 ghdr_new->reserved = 0;
2169
2170 nlattr_add_u32(nw, PF_TA_NBR_ADDED, attrs.nadd);
2171
2172 if (!nlmsg_end(nw))
2173 return (ENOMEM);
2174
2175 return (error);
2176 }
2177
2178 static int
pf_handle_table_del_addrs(struct nlmsghdr * hdr,struct nl_pstate * npt)2179 pf_handle_table_del_addrs(struct nlmsghdr *hdr, struct nl_pstate *npt)
2180 {
2181 struct nl_parsed_table_addrs attrs = { 0 };
2182 struct nl_writer *nw = npt->nw;
2183 struct genlmsghdr *ghdr_new;
2184 int error;
2185
2186 error = nl_parse_nlmsg(hdr, &table_addr_parser, npt, &attrs);
2187 if (error != 0)
2188 return (error);
2189
2190 PF_RULES_WLOCK();
2191 error = pfr_del_addrs(&attrs.table, &attrs.addrs[0],
2192 attrs.addr_count, &attrs.ndel, attrs.flags | PFR_FLAG_USERIOCTL);
2193 PF_RULES_WUNLOCK();
2194
2195 if (!nlmsg_reply(nw, hdr, sizeof(struct genlmsghdr)))
2196 return (ENOMEM);
2197
2198 ghdr_new = nlmsg_reserve_object(nw, struct genlmsghdr);
2199 ghdr_new->cmd = PFNL_CMD_TABLE_DEL_ADDR;
2200 ghdr_new->version = 0;
2201 ghdr_new->reserved = 0;
2202
2203 nlattr_add_u32(nw, PF_TA_NBR_DELETED, attrs.ndel);
2204
2205 if (!nlmsg_end(nw))
2206 return (ENOMEM);
2207
2208 return (error);
2209 }
2210
2211 static const struct nlhdr_parser *all_parsers[] = {
2212 &state_parser,
2213 &addrule_parser,
2214 &getrules_parser,
2215 &clear_states_parser,
2216 &set_statusif_parser,
2217 &natlook_parser,
2218 &set_debug_parser,
2219 &set_timeout_parser,
2220 &set_limit_parser,
2221 &pool_addr_parser,
2222 &add_addr_parser,
2223 &ruleset_parser,
2224 &table_parser,
2225 &table_addr_parser,
2226 };
2227
2228 static uint16_t family_id;
2229
2230 static const struct genl_cmd pf_cmds[] = {
2231 {
2232 .cmd_num = PFNL_CMD_GETSTATES,
2233 .cmd_name = "GETSTATES",
2234 .cmd_cb = pf_handle_getstates,
2235 .cmd_flags = GENL_CMD_CAP_DO | GENL_CMD_CAP_DUMP | GENL_CMD_CAP_HASPOL,
2236 .cmd_priv = PRIV_NETINET_PF,
2237 },
2238 {
2239 .cmd_num = PFNL_CMD_GETCREATORS,
2240 .cmd_name = "GETCREATORS",
2241 .cmd_cb = pf_handle_getcreators,
2242 .cmd_flags = GENL_CMD_CAP_DO | GENL_CMD_CAP_DUMP | GENL_CMD_CAP_HASPOL,
2243 .cmd_priv = PRIV_NETINET_PF,
2244 },
2245 {
2246 .cmd_num = PFNL_CMD_START,
2247 .cmd_name = "START",
2248 .cmd_cb = pf_handle_start,
2249 .cmd_flags = GENL_CMD_CAP_DO | GENL_CMD_CAP_HASPOL,
2250 .cmd_priv = PRIV_NETINET_PF,
2251 },
2252 {
2253 .cmd_num = PFNL_CMD_STOP,
2254 .cmd_name = "STOP",
2255 .cmd_cb = pf_handle_stop,
2256 .cmd_flags = GENL_CMD_CAP_DO | GENL_CMD_CAP_HASPOL,
2257 .cmd_priv = PRIV_NETINET_PF,
2258 },
2259 {
2260 .cmd_num = PFNL_CMD_ADDRULE,
2261 .cmd_name = "ADDRULE",
2262 .cmd_cb = pf_handle_addrule,
2263 .cmd_flags = GENL_CMD_CAP_DO | GENL_CMD_CAP_DUMP | GENL_CMD_CAP_HASPOL,
2264 .cmd_priv = PRIV_NETINET_PF,
2265 },
2266 {
2267 .cmd_num = PFNL_CMD_GETRULES,
2268 .cmd_name = "GETRULES",
2269 .cmd_cb = pf_handle_getrules,
2270 .cmd_flags = GENL_CMD_CAP_DUMP | GENL_CMD_CAP_HASPOL,
2271 .cmd_priv = PRIV_NETINET_PF,
2272 },
2273 {
2274 .cmd_num = PFNL_CMD_GETRULE,
2275 .cmd_name = "GETRULE",
2276 .cmd_cb = pf_handle_getrule,
2277 .cmd_flags = GENL_CMD_CAP_DUMP | GENL_CMD_CAP_HASPOL,
2278 .cmd_priv = PRIV_NETINET_PF,
2279 },
2280 {
2281 .cmd_num = PFNL_CMD_CLRSTATES,
2282 .cmd_name = "CLRSTATES",
2283 .cmd_cb = pf_handle_clear_states,
2284 .cmd_flags = GENL_CMD_CAP_DO | GENL_CMD_CAP_DUMP | GENL_CMD_CAP_HASPOL,
2285 .cmd_priv = PRIV_NETINET_PF,
2286 },
2287 {
2288 .cmd_num = PFNL_CMD_KILLSTATES,
2289 .cmd_name = "KILLSTATES",
2290 .cmd_cb = pf_handle_kill_states,
2291 .cmd_flags = GENL_CMD_CAP_DO | GENL_CMD_CAP_DUMP | GENL_CMD_CAP_HASPOL,
2292 .cmd_priv = PRIV_NETINET_PF,
2293 },
2294 {
2295 .cmd_num = PFNL_CMD_SET_STATUSIF,
2296 .cmd_name = "SETSTATUSIF",
2297 .cmd_cb = pf_handle_set_statusif,
2298 .cmd_flags = GENL_CMD_CAP_DO | GENL_CMD_CAP_HASPOL,
2299 .cmd_priv = PRIV_NETINET_PF,
2300 },
2301 {
2302 .cmd_num = PFNL_CMD_GET_STATUS,
2303 .cmd_name = "GETSTATUS",
2304 .cmd_cb = pf_handle_get_status,
2305 .cmd_flags = GENL_CMD_CAP_DUMP | GENL_CMD_CAP_HASPOL,
2306 .cmd_priv = PRIV_NETINET_PF,
2307 },
2308 {
2309 .cmd_num = PFNL_CMD_CLEAR_STATUS,
2310 .cmd_name = "CLEARSTATUS",
2311 .cmd_cb = pf_handle_clear_status,
2312 .cmd_flags = GENL_CMD_CAP_DO | GENL_CMD_CAP_HASPOL,
2313 .cmd_priv = PRIV_NETINET_PF,
2314 },
2315 {
2316 .cmd_num = PFNL_CMD_NATLOOK,
2317 .cmd_name = "NATLOOK",
2318 .cmd_cb = pf_handle_natlook,
2319 .cmd_flags = GENL_CMD_CAP_DUMP | GENL_CMD_CAP_HASPOL,
2320 .cmd_priv = PRIV_NETINET_PF,
2321 },
2322 {
2323 .cmd_num = PFNL_CMD_SET_DEBUG,
2324 .cmd_name = "SET_DEBUG",
2325 .cmd_cb = pf_handle_set_debug,
2326 .cmd_flags = GENL_CMD_CAP_DO | GENL_CMD_CAP_HASPOL,
2327 .cmd_priv = PRIV_NETINET_PF,
2328 },
2329 {
2330 .cmd_num = PFNL_CMD_SET_TIMEOUT,
2331 .cmd_name = "SET_TIMEOUT",
2332 .cmd_cb = pf_handle_set_timeout,
2333 .cmd_flags = GENL_CMD_CAP_DO | GENL_CMD_CAP_HASPOL,
2334 .cmd_priv = PRIV_NETINET_PF,
2335 },
2336 {
2337 .cmd_num = PFNL_CMD_GET_TIMEOUT,
2338 .cmd_name = "GET_TIMEOUT",
2339 .cmd_cb = pf_handle_get_timeout,
2340 .cmd_flags = GENL_CMD_CAP_DUMP | GENL_CMD_CAP_HASPOL,
2341 .cmd_priv = PRIV_NETINET_PF,
2342 },
2343 {
2344 .cmd_num = PFNL_CMD_SET_LIMIT,
2345 .cmd_name = "SET_LIMIT",
2346 .cmd_cb = pf_handle_set_limit,
2347 .cmd_flags = GENL_CMD_CAP_DO | GENL_CMD_CAP_HASPOL,
2348 .cmd_priv = PRIV_NETINET_PF,
2349 },
2350 {
2351 .cmd_num = PFNL_CMD_GET_LIMIT,
2352 .cmd_name = "GET_LIMIT",
2353 .cmd_cb = pf_handle_get_limit,
2354 .cmd_flags = GENL_CMD_CAP_DUMP | GENL_CMD_CAP_HASPOL,
2355 .cmd_priv = PRIV_NETINET_PF,
2356 },
2357 {
2358 .cmd_num = PFNL_CMD_BEGIN_ADDRS,
2359 .cmd_name = "BEGIN_ADDRS",
2360 .cmd_cb = pf_handle_begin_addrs,
2361 .cmd_flags = GENL_CMD_CAP_DO | GENL_CMD_CAP_DUMP | GENL_CMD_CAP_HASPOL,
2362 .cmd_priv = PRIV_NETINET_PF,
2363 },
2364 {
2365 .cmd_num = PFNL_CMD_ADD_ADDR,
2366 .cmd_name = "ADD_ADDR",
2367 .cmd_cb = pf_handle_add_addr,
2368 .cmd_flags = GENL_CMD_CAP_DO | GENL_CMD_CAP_HASPOL,
2369 .cmd_priv = PRIV_NETINET_PF,
2370 },
2371 {
2372 .cmd_num = PFNL_CMD_GET_ADDRS,
2373 .cmd_name = "GET_ADDRS",
2374 .cmd_cb = pf_handle_get_addrs,
2375 .cmd_flags = GENL_CMD_CAP_DUMP | GENL_CMD_CAP_HASPOL,
2376 .cmd_priv = PRIV_NETINET_PF,
2377 },
2378 {
2379 .cmd_num = PFNL_CMD_GET_ADDR,
2380 .cmd_name = "GET_ADDRS",
2381 .cmd_cb = pf_handle_get_addr,
2382 .cmd_flags = GENL_CMD_CAP_DUMP | GENL_CMD_CAP_HASPOL,
2383 .cmd_priv = PRIV_NETINET_PF,
2384 },
2385 {
2386 .cmd_num = PFNL_CMD_GET_RULESETS,
2387 .cmd_name = "GET_RULESETS",
2388 .cmd_cb = pf_handle_get_rulesets,
2389 .cmd_flags = GENL_CMD_CAP_DUMP | GENL_CMD_CAP_HASPOL,
2390 .cmd_priv = PRIV_NETINET_PF,
2391 },
2392 {
2393 .cmd_num = PFNL_CMD_GET_RULESET,
2394 .cmd_name = "GET_RULESET",
2395 .cmd_cb = pf_handle_get_ruleset,
2396 .cmd_flags = GENL_CMD_CAP_DUMP | GENL_CMD_CAP_HASPOL,
2397 .cmd_priv = PRIV_NETINET_PF,
2398 },
2399 {
2400 .cmd_num = PFNL_CMD_GET_SRCNODES,
2401 .cmd_name = "GET_SRCNODES",
2402 .cmd_cb = pf_handle_get_srcnodes,
2403 .cmd_flags = GENL_CMD_CAP_DUMP | GENL_CMD_CAP_HASPOL,
2404 .cmd_priv = PRIV_NETINET_PF,
2405 },
2406 {
2407 .cmd_num = PFNL_CMD_CLEAR_TABLES,
2408 .cmd_name = "CLEAR_TABLES",
2409 .cmd_cb = pf_handle_clear_tables,
2410 .cmd_flags = GENL_CMD_CAP_DO | GENL_CMD_CAP_HASPOL,
2411 .cmd_priv = PRIV_NETINET_PF,
2412 },
2413 {
2414 .cmd_num = PFNL_CMD_ADD_TABLE,
2415 .cmd_name = "ADD_TABLE",
2416 .cmd_cb = pf_handle_add_table,
2417 .cmd_flags = GENL_CMD_CAP_DO | GENL_CMD_CAP_HASPOL,
2418 .cmd_priv = PRIV_NETINET_PF,
2419 },
2420 {
2421 .cmd_num = PFNL_CMD_DEL_TABLE,
2422 .cmd_name = "DEL_TABLE",
2423 .cmd_cb = pf_handle_del_table,
2424 .cmd_flags = GENL_CMD_CAP_DO | GENL_CMD_CAP_HASPOL,
2425 .cmd_priv = PRIV_NETINET_PF,
2426 },
2427 {
2428 .cmd_num = PFNL_CMD_GET_TSTATS,
2429 .cmd_name = "GET_TSTATS",
2430 .cmd_cb = pf_handle_get_tstats,
2431 .cmd_flags = GENL_CMD_CAP_DUMP | GENL_CMD_CAP_HASPOL,
2432 .cmd_priv = PRIV_NETINET_PF,
2433 },
2434 {
2435 .cmd_num = PFNL_CMD_CLR_TSTATS,
2436 .cmd_name = "CLR_TSTATS",
2437 .cmd_cb = pf_handle_clear_tstats,
2438 .cmd_flags = GENL_CMD_CAP_DO | GENL_CMD_CAP_HASPOL,
2439 .cmd_priv = PRIV_NETINET_PF,
2440 },
2441 {
2442 .cmd_num = PFNL_CMD_CLR_ADDRS,
2443 .cmd_name = "CRL_ADDRS",
2444 .cmd_cb = pf_handle_clear_addrs,
2445 .cmd_flags = GENL_CMD_CAP_DO | GENL_CMD_CAP_HASPOL,
2446 .cmd_priv = PRIV_NETINET_PF,
2447 },
2448 {
2449 .cmd_num = PFNL_CMD_TABLE_ADD_ADDR,
2450 .cmd_name = "TABLE_ADD_ADDRS",
2451 .cmd_cb = pf_handle_table_add_addrs,
2452 .cmd_flags = GENL_CMD_CAP_DO | GENL_CMD_CAP_HASPOL,
2453 .cmd_priv = PRIV_NETINET_PF,
2454 },
2455 {
2456 .cmd_num = PFNL_CMD_TABLE_DEL_ADDR,
2457 .cmd_name = "TABLE_DEL_ADDRS",
2458 .cmd_cb = pf_handle_table_del_addrs,
2459 .cmd_flags = GENL_CMD_CAP_DO | GENL_CMD_CAP_HASPOL,
2460 .cmd_priv = PRIV_NETINET_PF,
2461 },
2462 };
2463
2464 void
pf_nl_register(void)2465 pf_nl_register(void)
2466 {
2467 NL_VERIFY_PARSERS(all_parsers);
2468
2469 family_id = genl_register_family(PFNL_FAMILY_NAME, 0, 2, PFNL_CMD_MAX);
2470 genl_register_cmds(family_id, pf_cmds, nitems(pf_cmds));
2471 }
2472
2473 void
pf_nl_unregister(void)2474 pf_nl_unregister(void)
2475 {
2476 genl_unregister_family(family_id);
2477 }
2478