File: | net/pfkeyv2.c |
Warning: | line 1080, column 11 Although the value stored to 'satype' is used in the enclosing expression, the value is never actually read from 'satype' |
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1 | /* $OpenBSD: pfkeyv2.c,v 1.259 2023/10/11 22:13:16 tobhe Exp $ */ |
2 | |
3 | /* |
4 | * @(#)COPYRIGHT 1.1 (NRL) 17 January 1995 |
5 | * |
6 | * NRL grants permission for redistribution and use in source and binary |
7 | * forms, with or without modification, of the software and documentation |
8 | * created at NRL provided that the following conditions are met: |
9 | * |
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 | * 3. All advertising materials mentioning features or use of this software |
16 | * must display the following acknowledgements: |
17 | * This product includes software developed by the University of |
18 | * California, Berkeley and its contributors. |
19 | * This product includes software developed at the Information |
20 | * Technology Division, US Naval Research Laboratory. |
21 | * 4. Neither the name of the NRL nor the names of its contributors |
22 | * may be used to endorse or promote products derived from this software |
23 | * without specific prior written permission. |
24 | * |
25 | * THE SOFTWARE PROVIDED BY NRL IS PROVIDED BY NRL AND CONTRIBUTORS ``AS |
26 | * IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED |
27 | * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A |
28 | * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL NRL OR |
29 | * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
30 | * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
31 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
32 | * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF |
33 | * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING |
34 | * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
35 | * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
36 | * |
37 | * The views and conclusions contained in the software and documentation |
38 | * are those of the authors and should not be interpreted as representing |
39 | * official policies, either expressed or implied, of the US Naval |
40 | * Research Laboratory (NRL). |
41 | */ |
42 | |
43 | /* |
44 | * Copyright (c) 1995, 1996, 1997, 1998, 1999 Craig Metz. All rights reserved. |
45 | * |
46 | * Redistribution and use in source and binary forms, with or without |
47 | * modification, are permitted provided that the following conditions |
48 | * are met: |
49 | * 1. Redistributions of source code must retain the above copyright |
50 | * notice, this list of conditions and the following disclaimer. |
51 | * 2. Redistributions in binary form must reproduce the above copyright |
52 | * notice, this list of conditions and the following disclaimer in the |
53 | * documentation and/or other materials provided with the distribution. |
54 | * 3. Neither the name of the author nor the names of any contributors |
55 | * may be used to endorse or promote products derived from this software |
56 | * without specific prior written permission. |
57 | * |
58 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
59 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
60 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
61 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
62 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
63 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
64 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
65 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
66 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
67 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
68 | * SUCH DAMAGE. |
69 | */ |
70 | |
71 | #include "pf.h" |
72 | |
73 | #include <sys/param.h> |
74 | #include <sys/socket.h> |
75 | #include <sys/socketvar.h> |
76 | #include <sys/protosw.h> |
77 | #include <sys/domain.h> |
78 | #include <sys/systm.h> |
79 | #include <sys/mbuf.h> |
80 | #include <sys/kernel.h> |
81 | #include <sys/proc.h> |
82 | #include <sys/pool.h> |
83 | #include <sys/mutex.h> |
84 | |
85 | #include <net/route.h> |
86 | #include <netinet/ip_ipsp.h> |
87 | #include <net/pfkeyv2.h> |
88 | #include <net/radix.h> |
89 | #include <netinet/ip_ah.h> |
90 | #include <netinet/ip_esp.h> |
91 | #include <netinet/ip_ipcomp.h> |
92 | #include <crypto/blf.h> |
93 | |
94 | #if NPF1 > 0 |
95 | #include <net/if.h> |
96 | #include <net/pfvar.h> |
97 | #endif |
98 | |
99 | #define PFKEYSNDQ8192 8192 |
100 | #define PFKEYRCVQ8192 8192 |
101 | |
102 | static const struct sadb_alg ealgs[] = { |
103 | { SADB_EALG_NULL11, 0, 0, 0 }, |
104 | { SADB_EALG_3DESCBC3, 64, 192, 192 }, |
105 | { SADB_X_EALG_BLF7, 64, 40, BLF_MAXKEYLEN((16 -2)*4) * 8}, |
106 | { SADB_X_EALG_CAST6, 64, 40, 128}, |
107 | { SADB_X_EALG_AES12, 128, 128, 256}, |
108 | { SADB_X_EALG_AESCTR13, 128, 128 + 32, 256 + 32} |
109 | }; |
110 | |
111 | static const struct sadb_alg aalgs[] = { |
112 | { SADB_AALG_SHA1HMAC3, 0, 160, 160 }, |
113 | { SADB_AALG_MD5HMAC2, 0, 128, 128 }, |
114 | { SADB_X_AALG_RIPEMD160HMAC8, 0, 160, 160 }, |
115 | { SADB_X_AALG_SHA2_2565, 0, 256, 256 }, |
116 | { SADB_X_AALG_SHA2_3846, 0, 384, 384 }, |
117 | { SADB_X_AALG_SHA2_5127, 0, 512, 512 } |
118 | }; |
119 | |
120 | static const struct sadb_alg calgs[] = { |
121 | { SADB_X_CALG_DEFLATE2, 0, 0, 0} |
122 | }; |
123 | |
124 | struct pool pkpcb_pool; |
125 | #define PFKEY_MSG_MAXSZ4096 4096 |
126 | const struct sockaddr pfkey_addr = { 2, PF_KEY30, }; |
127 | const struct domain pfkeydomain; |
128 | |
129 | /* |
130 | * pfkey PCB |
131 | * |
132 | * Locks used to protect struct members in this file: |
133 | * I immutable after creation |
134 | * a atomic operations |
135 | * l pkptable's lock |
136 | * s socket lock |
137 | */ |
138 | struct pkpcb { |
139 | struct socket *kcb_socket; /* [I] associated socket */ |
140 | |
141 | SRPL_ENTRY(pkpcb)struct { struct srp se_next; } kcb_list; /* [l] */ |
142 | struct refcnt kcb_refcnt; /* [a] */ |
143 | int kcb_flags; /* [s] */ |
144 | uint32_t kcb_reg; /* [s] Inc if SATYPE_MAX > 31 */ |
145 | uint32_t kcb_pid; /* [I] */ |
146 | unsigned int kcb_rdomain; /* [I] routing domain */ |
147 | }; |
148 | #define sotokeycb(so)((struct pkpcb *)(so)->so_pcb) ((struct pkpcb *)(so)->so_pcb) |
149 | #define keylock(kp)solock((kp)->kcb_socket) solock((kp)->kcb_socket) |
150 | #define keyunlock(kp)sounlock((kp)->kcb_socket) sounlock((kp)->kcb_socket) |
151 | |
152 | |
153 | struct dump_state { |
154 | struct sadb_msg *sadb_msg; |
155 | struct socket *socket; |
156 | }; |
157 | |
158 | struct pkptable { |
159 | SRPL_HEAD(, pkpcb)struct srpl pkp_list; |
160 | struct srpl_rc pkp_rc; |
161 | struct rwlock pkp_lk; |
162 | }; |
163 | |
164 | struct pkptable pkptable; |
165 | struct mutex pfkeyv2_mtx = MUTEX_INITIALIZER(IPL_MPFLOOR){ ((void *)0), ((((0x9)) > 0x0 && ((0x9)) < 0x9 ) ? 0x9 : ((0x9))), 0x0 }; |
166 | static uint32_t pfkeyv2_seq = 1; |
167 | static int nregistered = 0; |
168 | static int npromisc = 0; |
169 | |
170 | void pfkey_init(void); |
171 | |
172 | int pfkeyv2_attach(struct socket *, int, int); |
173 | int pfkeyv2_detach(struct socket *); |
174 | int pfkeyv2_disconnect(struct socket *); |
175 | int pfkeyv2_shutdown(struct socket *); |
176 | int pfkeyv2_send(struct socket *, struct mbuf *, struct mbuf *, |
177 | struct mbuf *); |
178 | int pfkeyv2_sockaddr(struct socket *, struct mbuf *); |
179 | int pfkeyv2_peeraddr(struct socket *, struct mbuf *); |
180 | int pfkeyv2_output(struct mbuf *, struct socket *); |
181 | int pfkey_sendup(struct pkpcb *, struct mbuf *, int); |
182 | int pfkeyv2_sa_flush(struct tdb *, void *, int); |
183 | int pfkeyv2_policy_flush(struct ipsec_policy *, void *, unsigned int); |
184 | int pfkeyv2_sysctl_policydumper(struct ipsec_policy *, void *, unsigned int); |
185 | |
186 | void keycb_ref(void *, void *); |
187 | void keycb_unref(void *, void *); |
188 | |
189 | /* |
190 | * Wrapper around m_devget(); copy data from contiguous buffer to mbuf |
191 | * chain. |
192 | */ |
193 | int |
194 | pfdatatopacket(void *data, int len, struct mbuf **packet) |
195 | { |
196 | if (!(*packet = m_devget(data, len, 0))) |
197 | return (ENOMEM12); |
198 | |
199 | /* Make sure, all data gets zeroized on free */ |
200 | (*packet)->m_flagsm_hdr.mh_flags |= M_ZEROIZE0x2000; |
201 | |
202 | return (0); |
203 | } |
204 | |
205 | const struct pr_usrreqs pfkeyv2_usrreqs = { |
206 | .pru_attach = pfkeyv2_attach, |
207 | .pru_detach = pfkeyv2_detach, |
208 | .pru_disconnect = pfkeyv2_disconnect, |
209 | .pru_shutdown = pfkeyv2_shutdown, |
210 | .pru_send = pfkeyv2_send, |
211 | .pru_sockaddr = pfkeyv2_sockaddr, |
212 | .pru_peeraddr = pfkeyv2_peeraddr, |
213 | }; |
214 | |
215 | const struct protosw pfkeysw[] = { |
216 | { |
217 | .pr_type = SOCK_RAW3, |
218 | .pr_domain = &pfkeydomain, |
219 | .pr_protocol = PF_KEY_V22, |
220 | .pr_flags = PR_ATOMIC0x0001 | PR_ADDR0x0002, |
221 | .pr_usrreqs = &pfkeyv2_usrreqs, |
222 | .pr_sysctl = pfkeyv2_sysctl, |
223 | } |
224 | }; |
225 | |
226 | const struct domain pfkeydomain = { |
227 | .dom_family = PF_KEY30, |
228 | .dom_name = "PF_KEY", |
229 | .dom_init = pfkey_init, |
230 | .dom_protosw = pfkeysw, |
231 | .dom_protoswNPROTOSW = &pfkeysw[nitems(pfkeysw)(sizeof((pfkeysw)) / sizeof((pfkeysw)[0]))], |
232 | }; |
233 | |
234 | void |
235 | keycb_ref(void *null, void *v) |
236 | { |
237 | struct pkpcb *kp = v; |
238 | |
239 | refcnt_take(&kp->kcb_refcnt); |
240 | } |
241 | |
242 | void |
243 | keycb_unref(void *null, void *v) |
244 | { |
245 | struct pkpcb *kp = v; |
246 | |
247 | refcnt_rele_wake(&kp->kcb_refcnt); |
248 | } |
249 | |
250 | void |
251 | pfkey_init(void) |
252 | { |
253 | rn_init(sizeof(struct sockaddr_encap)); |
254 | srpl_rc_init(&pkptable.pkp_rc, keycb_ref, keycb_unref, NULL((void *)0)); |
255 | rw_init(&pkptable.pkp_lk, "pfkey")_rw_init_flags(&pkptable.pkp_lk, "pfkey", 0, ((void *)0)); |
256 | SRPL_INIT(&pkptable.pkp_list)srp_init(&(&pkptable.pkp_list)->sl_head); |
257 | pool_init(&pkpcb_pool, sizeof(struct pkpcb), 0, |
258 | IPL_SOFTNET0x2, PR_WAITOK0x0001, "pkpcb", NULL((void *)0)); |
259 | pool_init(&ipsec_policy_pool, sizeof(struct ipsec_policy), 0, |
260 | IPL_SOFTNET0x2, 0, "ipsec policy", NULL((void *)0)); |
261 | pool_init(&ipsec_acquire_pool, sizeof(struct ipsec_acquire), 0, |
262 | IPL_SOFTNET0x2, 0, "ipsec acquire", NULL((void *)0)); |
263 | } |
264 | |
265 | |
266 | /* |
267 | * Attach a new PF_KEYv2 socket. |
268 | */ |
269 | int |
270 | pfkeyv2_attach(struct socket *so, int proto, int wait) |
271 | { |
272 | struct pkpcb *kp; |
273 | int error; |
274 | |
275 | if ((so->so_state & SS_PRIV0x080) == 0) |
276 | return EACCES13; |
277 | |
278 | error = soreserve(so, PFKEYSNDQ8192, PFKEYRCVQ8192); |
279 | if (error) |
280 | return (error); |
281 | |
282 | kp = pool_get(&pkpcb_pool, (wait == M_WAIT0x0001 ? PR_WAITOK0x0001 : PR_NOWAIT0x0002) | |
283 | PR_ZERO0x0008); |
284 | if (kp == NULL((void *)0)) |
285 | return (ENOBUFS55); |
286 | so->so_pcb = kp; |
287 | refcnt_init(&kp->kcb_refcnt); |
288 | kp->kcb_socket = so; |
289 | kp->kcb_pid = curproc({struct cpu_info *__ci; asm volatile("movq %%gs:%P1,%0" : "=r" (__ci) :"n" (__builtin_offsetof(struct cpu_info, ci_self))); __ci;})->ci_curproc->p_p->ps_pid; |
290 | kp->kcb_rdomain = rtable_l2(curproc({struct cpu_info *__ci; asm volatile("movq %%gs:%P1,%0" : "=r" (__ci) :"n" (__builtin_offsetof(struct cpu_info, ci_self))); __ci;})->ci_curproc->p_p->ps_rtableid); |
291 | |
292 | so->so_options |= SO_USELOOPBACK0x0040; |
293 | soisconnected(so); |
294 | |
295 | rw_enter(&pkptable.pkp_lk, RW_WRITE0x0001UL); |
296 | SRPL_INSERT_HEAD_LOCKED(&pkptable.pkp_rc, &pkptable.pkp_list, kp, kcb_list)do { void *head; srp_init(&(kp)->kcb_list.se_next); head = srp_get_locked(&(&pkptable.pkp_list)->sl_head); if (head != ((void *)0)) { (&pkptable.pkp_rc)->srpl_ref (&(&pkptable.pkp_rc)->srpl_gc.srp_gc_cookie, head) ; srp_update_locked(&(&pkptable.pkp_rc)->srpl_gc, & (kp)->kcb_list.se_next, head); } (&pkptable.pkp_rc)-> srpl_ref(&(&pkptable.pkp_rc)->srpl_gc.srp_gc_cookie , kp); srp_update_locked(&(&pkptable.pkp_rc)->srpl_gc , &(&pkptable.pkp_list)->sl_head, (kp)); } while ( 0); |
297 | rw_exit(&pkptable.pkp_lk); |
298 | |
299 | return (0); |
300 | } |
301 | |
302 | /* |
303 | * Close a PF_KEYv2 socket. |
304 | */ |
305 | int |
306 | pfkeyv2_detach(struct socket *so) |
307 | { |
308 | struct pkpcb *kp; |
309 | |
310 | soassertlocked(so); |
311 | |
312 | kp = sotokeycb(so)((struct pkpcb *)(so)->so_pcb); |
313 | if (kp == NULL((void *)0)) |
314 | return ENOTCONN57; |
315 | |
316 | if (kp->kcb_flags & |
317 | (PFKEYV2_SOCKETFLAGS_REGISTERED1|PFKEYV2_SOCKETFLAGS_PROMISC2)) { |
318 | mtx_enter(&pfkeyv2_mtx); |
319 | if (kp->kcb_flags & PFKEYV2_SOCKETFLAGS_REGISTERED1) |
320 | nregistered--; |
321 | |
322 | if (kp->kcb_flags & PFKEYV2_SOCKETFLAGS_PROMISC2) |
323 | npromisc--; |
324 | mtx_leave(&pfkeyv2_mtx); |
325 | } |
326 | |
327 | rw_enter(&pkptable.pkp_lk, RW_WRITE0x0001UL); |
328 | SRPL_REMOVE_LOCKED(&pkptable.pkp_rc, &pkptable.pkp_list, kp, pkpcb,do { struct srp *ref; struct pkpcb *c, *n; ref = &(&pkptable .pkp_list)->sl_head; while ((c = srp_get_locked(ref)) != ( kp)) ref = &c->kcb_list.se_next; n = srp_get_locked(& (c)->kcb_list.se_next); if (n != ((void *)0)) (&pkptable .pkp_rc)->srpl_ref(&(&pkptable.pkp_rc)->srpl_gc .srp_gc_cookie, n); srp_update_locked(&(&pkptable.pkp_rc )->srpl_gc, ref, n); srp_update_locked(&(&pkptable .pkp_rc)->srpl_gc, &c->kcb_list.se_next, ((void *)0 )); } while (0) |
329 | kcb_list)do { struct srp *ref; struct pkpcb *c, *n; ref = &(&pkptable .pkp_list)->sl_head; while ((c = srp_get_locked(ref)) != ( kp)) ref = &c->kcb_list.se_next; n = srp_get_locked(& (c)->kcb_list.se_next); if (n != ((void *)0)) (&pkptable .pkp_rc)->srpl_ref(&(&pkptable.pkp_rc)->srpl_gc .srp_gc_cookie, n); srp_update_locked(&(&pkptable.pkp_rc )->srpl_gc, ref, n); srp_update_locked(&(&pkptable .pkp_rc)->srpl_gc, &c->kcb_list.se_next, ((void *)0 )); } while (0); |
330 | rw_exit(&pkptable.pkp_lk); |
331 | |
332 | sounlock(so); |
333 | /* wait for all references to drop */ |
334 | refcnt_finalize(&kp->kcb_refcnt, "pfkeyrefs"); |
335 | solock(so); |
336 | |
337 | so->so_pcb = NULL((void *)0); |
338 | KASSERT((so->so_state & SS_NOFDREF) == 0)(((so->so_state & 0x001) == 0) ? (void)0 : __assert("diagnostic " , "/usr/src/sys/net/pfkeyv2.c", 338, "(so->so_state & SS_NOFDREF) == 0" )); |
339 | pool_put(&pkpcb_pool, kp); |
340 | |
341 | return (0); |
342 | } |
343 | |
344 | int |
345 | pfkeyv2_disconnect(struct socket *so) |
346 | { |
347 | soisdisconnected(so); |
348 | return (0); |
349 | } |
350 | |
351 | int |
352 | pfkeyv2_shutdown(struct socket *so) |
353 | { |
354 | socantsendmore(so); |
355 | return (0); |
356 | } |
357 | |
358 | int |
359 | pfkeyv2_send(struct socket *so, struct mbuf *m, struct mbuf *nam, |
360 | struct mbuf *control) |
361 | { |
362 | int error; |
363 | |
364 | soassertlocked(so); |
365 | |
366 | if (control && control->m_lenm_hdr.mh_len) { |
367 | error = EOPNOTSUPP45; |
368 | goto out; |
369 | } |
370 | |
371 | if (nam) { |
372 | error = EISCONN56; |
373 | goto out; |
374 | } |
375 | |
376 | error = pfkeyv2_output(m, so); |
377 | m = NULL((void *)0); |
378 | |
379 | out: |
380 | m_freem(control); |
381 | m_freem(m); |
382 | |
383 | return (error); |
384 | } |
385 | |
386 | int |
387 | pfkeyv2_sockaddr(struct socket *so, struct mbuf *nam) |
388 | { |
389 | return (EINVAL22); |
390 | } |
391 | |
392 | int |
393 | pfkeyv2_peeraddr(struct socket *so, struct mbuf *nam) |
394 | { |
395 | /* minimal support, just implement a fake peer address */ |
396 | bcopy(&pfkey_addr, mtod(nam, caddr_t)((caddr_t)((nam)->m_hdr.mh_data)), pfkey_addr.sa_len); |
397 | nam->m_lenm_hdr.mh_len = pfkey_addr.sa_len; |
398 | return (0); |
399 | } |
400 | |
401 | int |
402 | pfkeyv2_output(struct mbuf *mbuf, struct socket *so) |
403 | { |
404 | void *message; |
405 | int error = 0; |
406 | |
407 | #ifdef DIAGNOSTIC1 |
408 | if (!mbuf || !(mbuf->m_flagsm_hdr.mh_flags & M_PKTHDR0x0002)) { |
409 | error = EINVAL22; |
410 | goto ret; |
411 | } |
412 | #endif /* DIAGNOSTIC */ |
413 | |
414 | if (mbuf->m_pkthdrM_dat.MH.MH_pkthdr.len > PFKEY_MSG_MAXSZ4096) { |
415 | error = EMSGSIZE40; |
416 | goto ret; |
417 | } |
418 | |
419 | if (!(message = malloc((unsigned long) mbuf->m_pkthdrM_dat.MH.MH_pkthdr.len, |
420 | M_PFKEY74, M_DONTWAIT0x0002))) { |
421 | error = ENOMEM12; |
422 | goto ret; |
423 | } |
424 | |
425 | m_copydata(mbuf, 0, mbuf->m_pkthdrM_dat.MH.MH_pkthdr.len, message); |
426 | |
427 | /* |
428 | * The socket can't be closed concurrently because the file |
429 | * descriptor reference is still held. |
430 | */ |
431 | |
432 | sounlock(so); |
433 | error = pfkeyv2_dosend(so, message, mbuf->m_pkthdrM_dat.MH.MH_pkthdr.len); |
434 | solock(so); |
435 | |
436 | ret: |
437 | m_freem(mbuf); |
438 | return (error); |
439 | } |
440 | |
441 | int |
442 | pfkey_sendup(struct pkpcb *kp, struct mbuf *m0, int more) |
443 | { |
444 | struct socket *so = kp->kcb_socket; |
445 | struct mbuf *m; |
446 | |
447 | soassertlocked(so); |
448 | |
449 | if (more) { |
450 | if (!(m = m_dup_pkt(m0, 0, M_DONTWAIT0x0002))) |
451 | return (ENOMEM12); |
452 | } else |
453 | m = m0; |
454 | |
455 | if (!sbappendaddr(so, &so->so_rcv, &pfkey_addr, m, NULL((void *)0))) { |
456 | m_freem(m); |
457 | return (ENOBUFS55); |
458 | } |
459 | |
460 | sorwakeup(so); |
461 | return (0); |
462 | } |
463 | |
464 | /* |
465 | * Send a PFKEYv2 message, possibly to many receivers, based on the |
466 | * satype of the socket (which is set by the REGISTER message), and the |
467 | * third argument. |
468 | */ |
469 | int |
470 | pfkeyv2_sendmessage(void **headers, int mode, struct socket *so, |
471 | u_int8_t satype, int count, u_int rdomain) |
472 | { |
473 | int i, j, rval; |
474 | void *p, *buffer = NULL((void *)0); |
475 | struct mbuf *packet; |
476 | struct pkpcb *kp; |
477 | struct sadb_msg *smsg; |
478 | struct srp_ref sr; |
479 | |
480 | /* Find out how much space we'll need... */ |
481 | j = sizeof(struct sadb_msg); |
482 | |
483 | for (i = 1; i <= SADB_EXT_MAX40; i++) |
484 | if (headers[i]) |
485 | j += ((struct sadb_ext *)headers[i])->sadb_ext_len * |
486 | sizeof(uint64_t); |
487 | |
488 | /* ...and allocate it */ |
489 | if (!(buffer = malloc(j + sizeof(struct sadb_msg), M_PFKEY74, |
490 | M_NOWAIT0x0002))) { |
491 | rval = ENOMEM12; |
492 | goto ret; |
493 | } |
494 | |
495 | p = buffer + sizeof(struct sadb_msg); |
496 | bcopy(headers[0], p, sizeof(struct sadb_msg)); |
497 | ((struct sadb_msg *) p)->sadb_msg_len = j / sizeof(uint64_t); |
498 | p += sizeof(struct sadb_msg); |
499 | |
500 | /* Copy payloads in the packet */ |
501 | for (i = 1; i <= SADB_EXT_MAX40; i++) |
502 | if (headers[i]) { |
503 | ((struct sadb_ext *) headers[i])->sadb_ext_type = i; |
504 | bcopy(headers[i], p, EXTLEN(headers[i])(((struct sadb_ext *)(headers[i]))->sadb_ext_len * sizeof( uint64_t))); |
505 | p += EXTLEN(headers[i])(((struct sadb_ext *)(headers[i]))->sadb_ext_len * sizeof( uint64_t)); |
506 | } |
507 | |
508 | if ((rval = pfdatatopacket(buffer + sizeof(struct sadb_msg), |
509 | j, &packet)) != 0) |
510 | goto ret; |
511 | |
512 | switch (mode) { |
513 | case PFKEYV2_SENDMESSAGE_UNICAST1: |
514 | /* |
515 | * Send message to the specified socket, plus all |
516 | * promiscuous listeners. |
517 | */ |
518 | solock(so); |
519 | pfkey_sendup(sotokeycb(so)((struct pkpcb *)(so)->so_pcb), packet, 0); |
520 | sounlock(so); |
521 | |
522 | /* |
523 | * Promiscuous messages contain the original message |
524 | * encapsulated in another sadb_msg header. |
525 | */ |
526 | bzero(buffer, sizeof(struct sadb_msg))__builtin_bzero((buffer), (sizeof(struct sadb_msg))); |
527 | smsg = (struct sadb_msg *) buffer; |
528 | smsg->sadb_msg_version = PF_KEY_V22; |
529 | smsg->sadb_msg_type = SADB_X_PROMISC11; |
530 | smsg->sadb_msg_len = (sizeof(struct sadb_msg) + j) / |
531 | sizeof(uint64_t); |
532 | smsg->sadb_msg_seq = 0; |
533 | |
534 | /* Copy to mbuf chain */ |
535 | if ((rval = pfdatatopacket(buffer, sizeof(struct sadb_msg) + j, |
536 | &packet)) != 0) |
537 | goto ret; |
538 | |
539 | /* |
540 | * Search for promiscuous listeners, skipping the |
541 | * original destination. |
542 | */ |
543 | SRPL_FOREACH(kp, &sr, &pkptable.pkp_list, kcb_list)for ((kp) = srp_enter((&sr), &(&pkptable.pkp_list )->sl_head); (kp) != ((void *)0); (kp) = srp_follow((& sr), &(kp)->kcb_list.se_next)) { |
544 | if (kp->kcb_socket == so || kp->kcb_rdomain != rdomain) |
545 | continue; |
546 | |
547 | keylock(kp)solock((kp)->kcb_socket); |
548 | if (kp->kcb_flags & PFKEYV2_SOCKETFLAGS_PROMISC2) |
549 | pfkey_sendup(kp, packet, 1); |
550 | keyunlock(kp)sounlock((kp)->kcb_socket); |
551 | } |
552 | SRPL_LEAVE(&sr)srp_leave((&sr)); |
553 | m_freem(packet); |
554 | break; |
555 | |
556 | case PFKEYV2_SENDMESSAGE_REGISTERED2: |
557 | /* |
558 | * Send the message to all registered sockets that match |
559 | * the specified satype (e.g., all IPSEC-ESP negotiators) |
560 | */ |
561 | SRPL_FOREACH(kp, &sr, &pkptable.pkp_list, kcb_list)for ((kp) = srp_enter((&sr), &(&pkptable.pkp_list )->sl_head); (kp) != ((void *)0); (kp) = srp_follow((& sr), &(kp)->kcb_list.se_next)) { |
562 | if (kp->kcb_rdomain != rdomain) |
563 | continue; |
564 | |
565 | keylock(kp)solock((kp)->kcb_socket); |
566 | if (kp->kcb_flags & PFKEYV2_SOCKETFLAGS_REGISTERED1) { |
567 | if (!satype) { |
568 | /* Just send to everyone registered */ |
569 | pfkey_sendup(kp, packet, 1); |
570 | } else { |
571 | /* Check for specified satype */ |
572 | if ((1 << satype) & kp->kcb_reg) |
573 | pfkey_sendup(kp, packet, 1); |
574 | } |
575 | } |
576 | keyunlock(kp)sounlock((kp)->kcb_socket); |
577 | } |
578 | SRPL_LEAVE(&sr)srp_leave((&sr)); |
579 | /* Free last/original copy of the packet */ |
580 | m_freem(packet); |
581 | |
582 | /* Encapsulate the original message "inside" an sadb_msg header */ |
583 | bzero(buffer, sizeof(struct sadb_msg))__builtin_bzero((buffer), (sizeof(struct sadb_msg))); |
584 | smsg = (struct sadb_msg *) buffer; |
585 | smsg->sadb_msg_version = PF_KEY_V22; |
586 | smsg->sadb_msg_type = SADB_X_PROMISC11; |
587 | smsg->sadb_msg_len = (sizeof(struct sadb_msg) + j) / |
588 | sizeof(uint64_t); |
589 | smsg->sadb_msg_seq = 0; |
590 | |
591 | /* Convert to mbuf chain */ |
592 | if ((rval = pfdatatopacket(buffer, sizeof(struct sadb_msg) + j, |
593 | &packet)) != 0) |
594 | goto ret; |
595 | |
596 | /* Send to all registered promiscuous listeners */ |
597 | SRPL_FOREACH(kp, &sr, &pkptable.pkp_list, kcb_list)for ((kp) = srp_enter((&sr), &(&pkptable.pkp_list )->sl_head); (kp) != ((void *)0); (kp) = srp_follow((& sr), &(kp)->kcb_list.se_next)) { |
598 | if (kp->kcb_rdomain != rdomain) |
599 | continue; |
600 | |
601 | keylock(kp)solock((kp)->kcb_socket); |
602 | if ((kp->kcb_flags & PFKEYV2_SOCKETFLAGS_PROMISC2) && |
603 | !(kp->kcb_flags & PFKEYV2_SOCKETFLAGS_REGISTERED1)) |
604 | pfkey_sendup(kp, packet, 1); |
605 | keyunlock(kp)sounlock((kp)->kcb_socket); |
606 | } |
607 | SRPL_LEAVE(&sr)srp_leave((&sr)); |
608 | m_freem(packet); |
609 | break; |
610 | |
611 | case PFKEYV2_SENDMESSAGE_BROADCAST3: |
612 | /* Send message to all sockets */ |
613 | SRPL_FOREACH(kp, &sr, &pkptable.pkp_list, kcb_list)for ((kp) = srp_enter((&sr), &(&pkptable.pkp_list )->sl_head); (kp) != ((void *)0); (kp) = srp_follow((& sr), &(kp)->kcb_list.se_next)) { |
614 | if (kp->kcb_rdomain != rdomain) |
615 | continue; |
616 | |
617 | keylock(kp)solock((kp)->kcb_socket); |
618 | pfkey_sendup(kp, packet, 1); |
619 | keyunlock(kp)sounlock((kp)->kcb_socket); |
620 | } |
621 | SRPL_LEAVE(&sr)srp_leave((&sr)); |
622 | m_freem(packet); |
623 | break; |
624 | } |
625 | |
626 | ret: |
627 | if (buffer != NULL((void *)0)) { |
628 | explicit_bzero(buffer, j + sizeof(struct sadb_msg)); |
629 | free(buffer, M_PFKEY74, j + sizeof(struct sadb_msg)); |
630 | } |
631 | |
632 | return (rval); |
633 | } |
634 | |
635 | /* |
636 | * Get SPD information for an ACQUIRE. We setup the message such that |
637 | * the SRC/DST payloads are relative to us (regardless of whether the |
638 | * SPD rule was for incoming or outgoing packets). |
639 | */ |
640 | int |
641 | pfkeyv2_policy(struct ipsec_acquire *ipa, void **headers, void **buffer, |
642 | int *bufferlen) |
643 | { |
644 | union sockaddr_union sunion; |
645 | struct sadb_protocol *sp; |
646 | int rval, i, dir; |
647 | void *p; |
648 | |
649 | /* Find out how big a buffer we need */ |
650 | i = 4 * sizeof(struct sadb_address) + sizeof(struct sadb_protocol); |
651 | bzero(&sunion, sizeof(union sockaddr_union))__builtin_bzero((&sunion), (sizeof(union sockaddr_union)) ); |
652 | |
653 | switch (ipa->ipa_info.sen_type) { |
654 | case SENT_IP40x0001: |
655 | i += 4 * PADUP(sizeof(struct sockaddr_in))(((sizeof(struct sockaddr_in)) + sizeof(uint64_t) - 1) & ~ (sizeof(uint64_t) - 1)); |
656 | sunion.sa.sa_family = AF_INET2; |
657 | sunion.sa.sa_len = sizeof(struct sockaddr_in); |
658 | dir = ipa->ipa_info.sen_directionSen.Sip4.Direction; |
659 | break; |
660 | |
661 | #ifdef INET61 |
662 | case SENT_IP60x0002: |
663 | i += 4 * PADUP(sizeof(struct sockaddr_in6))(((sizeof(struct sockaddr_in6)) + sizeof(uint64_t) - 1) & ~(sizeof(uint64_t) - 1)); |
664 | sunion.sa.sa_family = AF_INET624; |
665 | sunion.sa.sa_len = sizeof(struct sockaddr_in6); |
666 | dir = ipa->ipa_info.sen_ip6_directionSen.Sip6.Direction; |
667 | break; |
668 | #endif /* INET6 */ |
669 | |
670 | default: |
671 | return (EINVAL22); |
672 | } |
673 | |
674 | if (!(p = malloc(i, M_PFKEY74, M_NOWAIT0x0002 | M_ZERO0x0008))) { |
675 | rval = ENOMEM12; |
676 | goto ret; |
677 | } else { |
678 | *buffer = p; |
679 | *bufferlen = i; |
680 | } |
681 | |
682 | if (dir == IPSP_DIRECTION_OUT0x2) |
683 | headers[SADB_X_EXT_SRC_FLOW21] = p; |
684 | else |
685 | headers[SADB_X_EXT_DST_FLOW22] = p; |
686 | switch (sunion.sa.sa_family) { |
687 | case AF_INET2: |
688 | sunion.sin.sin_addr = ipa->ipa_info.sen_ip_srcSen.Sip4.Src; |
689 | sunion.sin.sin_port = ipa->ipa_info.sen_sportSen.Sip4.Sport; |
690 | break; |
691 | |
692 | #ifdef INET61 |
693 | case AF_INET624: |
694 | sunion.sin6.sin6_addr = ipa->ipa_info.sen_ip6_srcSen.Sip6.Src; |
695 | sunion.sin6.sin6_port = ipa->ipa_info.sen_ip6_sportSen.Sip6.Sport; |
696 | break; |
697 | #endif /* INET6 */ |
698 | } |
699 | export_address(&p, &sunion.sa); |
700 | |
701 | if (dir == IPSP_DIRECTION_OUT0x2) |
702 | headers[SADB_X_EXT_SRC_MASK17] = p; |
703 | else |
704 | headers[SADB_X_EXT_DST_MASK18] = p; |
705 | switch (sunion.sa.sa_family) { |
706 | case AF_INET2: |
707 | sunion.sin.sin_addr = ipa->ipa_mask.sen_ip_srcSen.Sip4.Src; |
708 | sunion.sin.sin_port = ipa->ipa_mask.sen_sportSen.Sip4.Sport; |
709 | break; |
710 | |
711 | #ifdef INET61 |
712 | case AF_INET624: |
713 | sunion.sin6.sin6_addr = ipa->ipa_mask.sen_ip6_srcSen.Sip6.Src; |
714 | sunion.sin6.sin6_port = ipa->ipa_mask.sen_ip6_sportSen.Sip6.Sport; |
715 | break; |
716 | #endif /* INET6 */ |
717 | } |
718 | export_address(&p, &sunion.sa); |
719 | |
720 | if (dir == IPSP_DIRECTION_OUT0x2) |
721 | headers[SADB_X_EXT_DST_FLOW22] = p; |
722 | else |
723 | headers[SADB_X_EXT_SRC_FLOW21] = p; |
724 | switch (sunion.sa.sa_family) { |
725 | case AF_INET2: |
726 | sunion.sin.sin_addr = ipa->ipa_info.sen_ip_dstSen.Sip4.Dst; |
727 | sunion.sin.sin_port = ipa->ipa_info.sen_dportSen.Sip4.Dport; |
728 | break; |
729 | |
730 | #ifdef INET61 |
731 | case AF_INET624: |
732 | sunion.sin6.sin6_addr = ipa->ipa_info.sen_ip6_dstSen.Sip6.Dst; |
733 | sunion.sin6.sin6_port = ipa->ipa_info.sen_ip6_dportSen.Sip6.Dport; |
734 | break; |
735 | #endif /* INET6 */ |
736 | } |
737 | export_address(&p, &sunion.sa); |
738 | |
739 | if (dir == IPSP_DIRECTION_OUT0x2) |
740 | headers[SADB_X_EXT_DST_MASK18] = p; |
741 | else |
742 | headers[SADB_X_EXT_SRC_MASK17] = p; |
743 | switch (sunion.sa.sa_family) { |
744 | case AF_INET2: |
745 | sunion.sin.sin_addr = ipa->ipa_mask.sen_ip_dstSen.Sip4.Dst; |
746 | sunion.sin.sin_port = ipa->ipa_mask.sen_dportSen.Sip4.Dport; |
747 | break; |
748 | |
749 | #ifdef INET61 |
750 | case AF_INET624: |
751 | sunion.sin6.sin6_addr = ipa->ipa_mask.sen_ip6_dstSen.Sip6.Dst; |
752 | sunion.sin6.sin6_port = ipa->ipa_mask.sen_ip6_dportSen.Sip6.Dport; |
753 | break; |
754 | #endif /* INET6 */ |
755 | } |
756 | export_address(&p, &sunion.sa); |
757 | |
758 | headers[SADB_X_EXT_FLOW_TYPE20] = p; |
759 | sp = p; |
760 | sp->sadb_protocol_len = sizeof(struct sadb_protocol) / |
761 | sizeof(u_int64_t); |
762 | switch (sunion.sa.sa_family) { |
763 | case AF_INET2: |
764 | if (ipa->ipa_mask.sen_protoSen.Sip4.Proto) |
765 | sp->sadb_protocol_proto = ipa->ipa_info.sen_protoSen.Sip4.Proto; |
766 | sp->sadb_protocol_direction = ipa->ipa_info.sen_directionSen.Sip4.Direction; |
767 | break; |
768 | |
769 | #ifdef INET61 |
770 | case AF_INET624: |
771 | if (ipa->ipa_mask.sen_ip6_protoSen.Sip6.Proto) |
772 | sp->sadb_protocol_proto = ipa->ipa_info.sen_ip6_protoSen.Sip6.Proto; |
773 | sp->sadb_protocol_direction = ipa->ipa_info.sen_ip6_directionSen.Sip6.Direction; |
774 | break; |
775 | #endif /* INET6 */ |
776 | } |
777 | |
778 | rval = 0; |
779 | |
780 | ret: |
781 | return (rval); |
782 | } |
783 | |
784 | /* |
785 | * Get all the information contained in an SA to a PFKEYV2 message. |
786 | */ |
787 | int |
788 | pfkeyv2_get(struct tdb *tdb, void **headers, void **buffer, int *lenp, |
789 | int *lenused) |
790 | { |
791 | int rval, i; |
792 | void *p; |
793 | |
794 | NET_ASSERT_LOCKED()do { int _s = rw_status(&netlock); if ((splassert_ctl > 0) && (_s != 0x0001UL && _s != 0x0002UL)) splassert_fail (0x0002UL, _s, __func__); } while (0); |
795 | |
796 | /* Find how much space we need */ |
797 | i = sizeof(struct sadb_sa) + sizeof(struct sadb_lifetime) + |
798 | sizeof(struct sadb_x_counter); |
799 | |
800 | if (tdb->tdb_soft_allocations || tdb->tdb_soft_bytes || |
801 | tdb->tdb_soft_timeout || tdb->tdb_soft_first_use) |
802 | i += sizeof(struct sadb_lifetime); |
803 | |
804 | if (tdb->tdb_exp_allocations || tdb->tdb_exp_bytes || |
805 | tdb->tdb_exp_timeout || tdb->tdb_exp_first_use) |
806 | i += sizeof(struct sadb_lifetime); |
807 | |
808 | if (tdb->tdb_last_used) |
809 | i += sizeof(struct sadb_lifetime); |
810 | |
811 | i += sizeof(struct sadb_address) + PADUP(tdb->tdb_src.sa.sa_len)(((tdb->tdb_src.sa.sa_len) + sizeof(uint64_t) - 1) & ~ (sizeof(uint64_t) - 1)); |
812 | i += sizeof(struct sadb_address) + PADUP(tdb->tdb_dst.sa.sa_len)(((tdb->tdb_dst.sa.sa_len) + sizeof(uint64_t) - 1) & ~ (sizeof(uint64_t) - 1)); |
813 | |
814 | if (tdb->tdb_ids) { |
815 | i += sizeof(struct sadb_ident) + PADUP(tdb->tdb_ids->id_local->len)(((tdb->tdb_ids->id_local->len) + sizeof(uint64_t) - 1) & ~(sizeof(uint64_t) - 1)); |
816 | i += sizeof(struct sadb_ident) + PADUP(tdb->tdb_ids->id_remote->len)(((tdb->tdb_ids->id_remote->len) + sizeof(uint64_t) - 1) & ~(sizeof(uint64_t) - 1)); |
817 | } |
818 | |
819 | if (tdb->tdb_amxkey) |
820 | i += sizeof(struct sadb_key) + PADUP(tdb->tdb_amxkeylen)(((tdb->tdb_amxkeylen) + sizeof(uint64_t) - 1) & ~(sizeof (uint64_t) - 1)); |
821 | |
822 | if (tdb->tdb_emxkey) |
823 | i += sizeof(struct sadb_key) + PADUP(tdb->tdb_emxkeylen)(((tdb->tdb_emxkeylen) + sizeof(uint64_t) - 1) & ~(sizeof (uint64_t) - 1)); |
824 | |
825 | if (tdb->tdb_filter.sen_type) { |
826 | i += 2 * sizeof(struct sadb_protocol); |
827 | |
828 | /* We'll need four of them: src, src mask, dst, dst mask. */ |
829 | switch (tdb->tdb_filter.sen_type) { |
830 | case SENT_IP40x0001: |
831 | i += 4 * PADUP(sizeof(struct sockaddr_in))(((sizeof(struct sockaddr_in)) + sizeof(uint64_t) - 1) & ~ (sizeof(uint64_t) - 1)); |
832 | i += 4 * sizeof(struct sadb_address); |
833 | break; |
834 | #ifdef INET61 |
835 | case SENT_IP60x0002: |
836 | i += 4 * PADUP(sizeof(struct sockaddr_in6))(((sizeof(struct sockaddr_in6)) + sizeof(uint64_t) - 1) & ~(sizeof(uint64_t) - 1)); |
837 | i += 4 * sizeof(struct sadb_address); |
838 | break; |
839 | #endif /* INET6 */ |
840 | default: |
841 | rval = EINVAL22; |
842 | goto ret; |
843 | } |
844 | } |
845 | |
846 | if (tdb->tdb_onext) { |
847 | i += sizeof(struct sadb_sa); |
848 | i += sizeof(struct sadb_address) + |
849 | PADUP(tdb->tdb_onext->tdb_dst.sa.sa_len)(((tdb->tdb_onext->tdb_dst.sa.sa_len) + sizeof(uint64_t ) - 1) & ~(sizeof(uint64_t) - 1)); |
850 | i += sizeof(struct sadb_protocol); |
851 | } |
852 | |
853 | if (tdb->tdb_udpencap_port) |
854 | i += sizeof(struct sadb_x_udpencap); |
855 | |
856 | i += sizeof(struct sadb_x_replay); |
857 | |
858 | if (tdb->tdb_mtu > 0) |
859 | i+= sizeof(struct sadb_x_mtu); |
860 | |
861 | if (tdb->tdb_rdomain != tdb->tdb_rdomain_post) |
862 | i += sizeof(struct sadb_x_rdomain); |
863 | |
864 | #if NPF1 > 0 |
865 | if (tdb->tdb_tag) |
866 | i += sizeof(struct sadb_x_tag) + PADUP(PF_TAG_NAME_SIZE)(((64) + sizeof(uint64_t) - 1) & ~(sizeof(uint64_t) - 1)); |
867 | if (tdb->tdb_tap) |
868 | i += sizeof(struct sadb_x_tap); |
869 | #endif |
870 | |
871 | if (ISSET(tdb->tdb_flags, TDBF_IFACE)((tdb->tdb_flags) & (0x400000))) |
872 | i += sizeof(struct sadb_x_iface); |
873 | |
874 | if (lenp) |
875 | *lenp = i; |
876 | |
877 | if (buffer == NULL((void *)0)) { |
878 | rval = 0; |
879 | goto ret; |
880 | } |
881 | |
882 | if (!(p = malloc(i, M_PFKEY74, M_NOWAIT0x0002 | M_ZERO0x0008))) { |
883 | rval = ENOMEM12; |
884 | goto ret; |
885 | } else |
886 | *buffer = p; |
887 | |
888 | headers[SADB_EXT_SA1] = p; |
889 | |
890 | export_sa(&p, tdb); /* Export SA information (mostly flags) */ |
891 | |
892 | /* Export lifetimes where applicable */ |
893 | headers[SADB_EXT_LIFETIME_CURRENT2] = p; |
894 | export_lifetime(&p, tdb, PFKEYV2_LIFETIME_CURRENT2); |
895 | |
896 | if (tdb->tdb_soft_allocations || tdb->tdb_soft_bytes || |
897 | tdb->tdb_soft_first_use || tdb->tdb_soft_timeout) { |
898 | headers[SADB_EXT_LIFETIME_SOFT4] = p; |
899 | export_lifetime(&p, tdb, PFKEYV2_LIFETIME_SOFT1); |
900 | } |
901 | |
902 | if (tdb->tdb_exp_allocations || tdb->tdb_exp_bytes || |
903 | tdb->tdb_exp_first_use || tdb->tdb_exp_timeout) { |
904 | headers[SADB_EXT_LIFETIME_HARD3] = p; |
905 | export_lifetime(&p, tdb, PFKEYV2_LIFETIME_HARD0); |
906 | } |
907 | |
908 | if (tdb->tdb_last_used) { |
909 | headers[SADB_X_EXT_LIFETIME_LASTUSE32] = p; |
910 | export_lifetime(&p, tdb, PFKEYV2_LIFETIME_LASTUSE3); |
911 | } |
912 | |
913 | /* Export TDB source address */ |
914 | headers[SADB_EXT_ADDRESS_SRC5] = p; |
915 | export_address(&p, &tdb->tdb_src.sa); |
916 | |
917 | /* Export TDB destination address */ |
918 | headers[SADB_EXT_ADDRESS_DST6] = p; |
919 | export_address(&p, &tdb->tdb_dst.sa); |
920 | |
921 | /* Export source/destination identities, if present */ |
922 | if (tdb->tdb_ids) |
923 | export_identities(&p, tdb->tdb_ids, tdb->tdb_ids_swapped, headers); |
924 | |
925 | /* Export authentication key, if present */ |
926 | if (tdb->tdb_amxkey) { |
927 | headers[SADB_EXT_KEY_AUTH8] = p; |
928 | export_key(&p, tdb, PFKEYV2_AUTHENTICATION_KEY1); |
929 | } |
930 | |
931 | /* Export encryption key, if present */ |
932 | if (tdb->tdb_emxkey) { |
933 | headers[SADB_EXT_KEY_ENCRYPT9] = p; |
934 | export_key(&p, tdb, PFKEYV2_ENCRYPTION_KEY0); |
935 | } |
936 | |
937 | /* Export flow/filter, if present */ |
938 | if (tdb->tdb_filter.sen_type) |
939 | export_flow(&p, IPSP_IPSEC_USE0, &tdb->tdb_filter, |
940 | &tdb->tdb_filtermask, headers); |
941 | |
942 | if (tdb->tdb_onext) { |
943 | headers[SADB_X_EXT_SA223] = p; |
944 | export_sa(&p, tdb->tdb_onext); |
945 | headers[SADB_X_EXT_DST224] = p; |
946 | export_address(&p, &tdb->tdb_onext->tdb_dst.sa); |
947 | headers[SADB_X_EXT_SATYPE235] = p; |
948 | export_satype(&p, tdb->tdb_onext); |
949 | } |
950 | |
951 | /* Export UDP encapsulation port, if present */ |
952 | if (tdb->tdb_udpencap_port) { |
953 | headers[SADB_X_EXT_UDPENCAP31] = p; |
954 | export_udpencap(&p, tdb); |
955 | } |
956 | |
957 | headers[SADB_X_EXT_REPLAY39] = p; |
958 | export_replay(&p, tdb); |
959 | |
960 | if (tdb->tdb_mtu > 0) { |
961 | headers[SADB_X_EXT_MTU38] = p; |
962 | export_mtu(&p, tdb); |
963 | } |
964 | |
965 | /* Export rdomain switch, if present */ |
966 | if (tdb->tdb_rdomain != tdb->tdb_rdomain_post) { |
967 | headers[SADB_X_EXT_RDOMAIN37] = p; |
968 | export_rdomain(&p, tdb); |
969 | } |
970 | |
971 | #if NPF1 > 0 |
972 | /* Export tag information, if present */ |
973 | if (tdb->tdb_tag) { |
974 | headers[SADB_X_EXT_TAG33] = p; |
975 | export_tag(&p, tdb); |
976 | } |
977 | |
978 | /* Export tap enc(4) device information, if present */ |
979 | if (tdb->tdb_tap) { |
980 | headers[SADB_X_EXT_TAP34] = p; |
981 | export_tap(&p, tdb); |
982 | } |
983 | #endif |
984 | |
985 | /* Export sec(4) interface information, if present */ |
986 | if (ISSET(tdb->tdb_flags, TDBF_IFACE)((tdb->tdb_flags) & (0x400000))) { |
987 | headers[SADB_X_EXT_IFACE40] = p; |
988 | export_iface(&p, tdb); |
989 | } |
990 | |
991 | headers[SADB_X_EXT_COUNTER36] = p; |
992 | export_counter(&p, tdb); |
993 | |
994 | if (lenused) |
995 | *lenused = p - *buffer; |
996 | rval = 0; |
997 | |
998 | ret: |
999 | return (rval); |
1000 | } |
1001 | |
1002 | /* |
1003 | * Dump a TDB. |
1004 | */ |
1005 | int |
1006 | pfkeyv2_dump_walker(struct tdb *tdb, void *state, int last) |
1007 | { |
1008 | struct dump_state *dump_state = (struct dump_state *) state; |
1009 | void *headers[SADB_EXT_MAX40+1], *buffer; |
1010 | int buflen; |
1011 | int rval; |
1012 | |
1013 | /* If not satype was specified, dump all TDBs */ |
1014 | if (!dump_state->sadb_msg->sadb_msg_satype || |
1015 | (tdb->tdb_satype == dump_state->sadb_msg->sadb_msg_satype)) { |
1016 | bzero(headers, sizeof(headers))__builtin_bzero((headers), (sizeof(headers))); |
1017 | headers[0] = (void *) dump_state->sadb_msg; |
1018 | |
1019 | /* Get the information from the TDB to a PFKEYv2 message */ |
1020 | if ((rval = pfkeyv2_get(tdb, headers, &buffer, &buflen, NULL((void *)0))) != 0) |
1021 | return (rval); |
1022 | |
1023 | if (last) |
1024 | ((struct sadb_msg *)headers[0])->sadb_msg_seq = 0; |
1025 | |
1026 | /* Send the message to the specified socket */ |
1027 | rval = pfkeyv2_sendmessage(headers, |
1028 | PFKEYV2_SENDMESSAGE_UNICAST1, dump_state->socket, 0, 0, |
1029 | tdb->tdb_rdomain); |
1030 | |
1031 | explicit_bzero(buffer, buflen); |
1032 | free(buffer, M_PFKEY74, buflen); |
1033 | if (rval) |
1034 | return (rval); |
1035 | } |
1036 | |
1037 | return (0); |
1038 | } |
1039 | |
1040 | /* |
1041 | * Delete an SA. |
1042 | */ |
1043 | int |
1044 | pfkeyv2_sa_flush(struct tdb *tdb, void *satype_vp, int last) |
1045 | { |
1046 | if (!(*((u_int8_t *) satype_vp)) || |
1047 | tdb->tdb_satype == *((u_int8_t *) satype_vp)) |
1048 | tdb_delete(tdb); |
1049 | return (0); |
1050 | } |
1051 | |
1052 | /* |
1053 | * Convert between SATYPEs and IPsec protocols, taking into consideration |
1054 | * sysctl variables enabling/disabling ESP/AH and the presence of the old |
1055 | * IPsec transforms. |
1056 | */ |
1057 | int |
1058 | pfkeyv2_get_proto_alg(u_int8_t satype, u_int8_t *sproto, int *alg) |
1059 | { |
1060 | switch (satype) { |
1061 | #ifdef IPSEC1 |
1062 | case SADB_SATYPE_AH1: |
1063 | if (!ah_enable) |
1064 | return (EOPNOTSUPP45); |
1065 | |
1066 | *sproto = IPPROTO_AH51; |
1067 | |
1068 | if(alg != NULL((void *)0)) |
1069 | *alg = satype = XF_AH2; |
1070 | |
1071 | break; |
1072 | |
1073 | case SADB_SATYPE_ESP2: |
1074 | if (!esp_enable) |
1075 | return (EOPNOTSUPP45); |
1076 | |
1077 | *sproto = IPPROTO_ESP50; |
1078 | |
1079 | if(alg != NULL((void *)0)) |
1080 | *alg = satype = XF_ESP3; |
Although the value stored to 'satype' is used in the enclosing expression, the value is never actually read from 'satype' | |
1081 | |
1082 | break; |
1083 | |
1084 | case SADB_X_SATYPE_IPIP7: |
1085 | *sproto = IPPROTO_IPIP4; |
1086 | |
1087 | if (alg != NULL((void *)0)) |
1088 | *alg = XF_IP41; |
1089 | |
1090 | break; |
1091 | |
1092 | case SADB_X_SATYPE_IPCOMP9: |
1093 | if (!ipcomp_enable) |
1094 | return (EOPNOTSUPP45); |
1095 | |
1096 | *sproto = IPPROTO_IPCOMP108; |
1097 | |
1098 | if(alg != NULL((void *)0)) |
1099 | *alg = satype = XF_IPCOMP6; |
1100 | |
1101 | break; |
1102 | #endif /* IPSEC */ |
1103 | #ifdef TCP_SIGNATURE1 |
1104 | case SADB_X_SATYPE_TCPSIGNATURE8: |
1105 | *sproto = IPPROTO_TCP6; |
1106 | |
1107 | if (alg != NULL((void *)0)) |
1108 | *alg = XF_TCPSIGNATURE5; |
1109 | |
1110 | break; |
1111 | #endif /* TCP_SIGNATURE */ |
1112 | |
1113 | default: /* Nothing else supported */ |
1114 | return (EOPNOTSUPP45); |
1115 | } |
1116 | |
1117 | return (0); |
1118 | } |
1119 | |
1120 | /* |
1121 | * Handle all messages from userland to kernel. |
1122 | */ |
1123 | int |
1124 | pfkeyv2_dosend(struct socket *so, void *message, int len) |
1125 | { |
1126 | int i, j, rval = 0, mode = PFKEYV2_SENDMESSAGE_BROADCAST3; |
1127 | int delflag = 0; |
1128 | struct sockaddr_encap encapdst, encapnetmask; |
1129 | struct ipsec_policy *ipo; |
1130 | struct ipsec_acquire *ipa; |
1131 | struct radix_node_head *rnh; |
1132 | struct radix_node *rn = NULL((void *)0); |
1133 | struct pkpcb *kp, *bkp; |
1134 | void *freeme = NULL((void *)0), *freeme2 = NULL((void *)0), *freeme3 = NULL((void *)0); |
1135 | int freeme_sz = 0, freeme2_sz = 0, freeme3_sz = 0; |
1136 | void *bckptr = NULL((void *)0); |
1137 | void *headers[SADB_EXT_MAX40 + 1]; |
1138 | union sockaddr_union *sunionp; |
1139 | struct tdb *sa1 = NULL((void *)0), *sa2 = NULL((void *)0); |
1140 | struct sadb_msg *smsg; |
1141 | struct sadb_spirange *sprng; |
1142 | struct sadb_sa *ssa; |
1143 | struct sadb_supported *ssup; |
1144 | struct sadb_ident *sid, *did; |
1145 | struct srp_ref sr; |
1146 | struct sadb_x_rdomain *srdomain; |
1147 | u_int rdomain = 0; |
1148 | int promisc; |
1149 | |
1150 | mtx_enter(&pfkeyv2_mtx); |
1151 | promisc = npromisc; |
1152 | mtx_leave(&pfkeyv2_mtx); |
1153 | |
1154 | /* Verify that we received this over a legitimate pfkeyv2 socket */ |
1155 | bzero(headers, sizeof(headers))__builtin_bzero((headers), (sizeof(headers))); |
1156 | |
1157 | kp = sotokeycb(so)((struct pkpcb *)(so)->so_pcb); |
1158 | if (!kp) { |
1159 | rval = EINVAL22; |
1160 | goto ret; |
1161 | } |
1162 | |
1163 | rdomain = kp->kcb_rdomain; |
1164 | |
1165 | /* Validate message format */ |
1166 | if ((rval = pfkeyv2_parsemessage(message, len, headers)) != 0) |
1167 | goto ret; |
1168 | |
1169 | /* If we have any promiscuous listeners, send them a copy of the message */ |
1170 | if (promisc) { |
1171 | struct mbuf *packet; |
1172 | |
1173 | freeme_sz = sizeof(struct sadb_msg) + len; |
1174 | if (!(freeme = malloc(freeme_sz, M_PFKEY74, M_NOWAIT0x0002))) { |
1175 | rval = ENOMEM12; |
1176 | goto ret; |
1177 | } |
1178 | |
1179 | /* Initialize encapsulating header */ |
1180 | bzero(freeme, sizeof(struct sadb_msg))__builtin_bzero((freeme), (sizeof(struct sadb_msg))); |
1181 | smsg = (struct sadb_msg *) freeme; |
1182 | smsg->sadb_msg_version = PF_KEY_V22; |
1183 | smsg->sadb_msg_type = SADB_X_PROMISC11; |
1184 | smsg->sadb_msg_len = (sizeof(struct sadb_msg) + len) / |
1185 | sizeof(uint64_t); |
1186 | smsg->sadb_msg_seq = curproc({struct cpu_info *__ci; asm volatile("movq %%gs:%P1,%0" : "=r" (__ci) :"n" (__builtin_offsetof(struct cpu_info, ci_self))); __ci;})->ci_curproc->p_p->ps_pid; |
1187 | |
1188 | bcopy(message, freeme + sizeof(struct sadb_msg), len); |
1189 | |
1190 | /* Convert to mbuf chain */ |
1191 | if ((rval = pfdatatopacket(freeme, freeme_sz, &packet)) != 0) |
1192 | goto ret; |
1193 | |
1194 | /* Send to all promiscuous listeners */ |
1195 | SRPL_FOREACH(bkp, &sr, &pkptable.pkp_list, kcb_list)for ((bkp) = srp_enter((&sr), &(&pkptable.pkp_list )->sl_head); (bkp) != ((void *)0); (bkp) = srp_follow((& sr), &(bkp)->kcb_list.se_next)) { |
1196 | if (bkp->kcb_rdomain != kp->kcb_rdomain) |
1197 | continue; |
1198 | |
1199 | keylock(bkp)solock((bkp)->kcb_socket); |
1200 | if (bkp->kcb_flags & PFKEYV2_SOCKETFLAGS_PROMISC2) |
1201 | pfkey_sendup(bkp, packet, 1); |
1202 | keyunlock(bkp)sounlock((bkp)->kcb_socket); |
1203 | } |
1204 | SRPL_LEAVE(&sr)srp_leave((&sr)); |
1205 | |
1206 | m_freem(packet); |
1207 | |
1208 | /* Paranoid */ |
1209 | explicit_bzero(freeme, freeme_sz); |
1210 | free(freeme, M_PFKEY74, freeme_sz); |
1211 | freeme = NULL((void *)0); |
1212 | freeme_sz = 0; |
1213 | } |
1214 | |
1215 | /* use specified rdomain */ |
1216 | srdomain = (struct sadb_x_rdomain *) headers[SADB_X_EXT_RDOMAIN37]; |
1217 | if (srdomain) { |
1218 | if (!rtable_exists(srdomain->sadb_x_rdomain_dom1) || |
1219 | !rtable_exists(srdomain->sadb_x_rdomain_dom2)) { |
1220 | rval = EINVAL22; |
1221 | goto ret; |
1222 | } |
1223 | rdomain = srdomain->sadb_x_rdomain_dom1; |
1224 | } |
1225 | |
1226 | smsg = (struct sadb_msg *) headers[0]; |
1227 | switch (smsg->sadb_msg_type) { |
1228 | case SADB_GETSPI1: /* Reserve an SPI */ |
1229 | sa1 = malloc(sizeof (*sa1), M_PFKEY74, M_NOWAIT0x0002 | M_ZERO0x0008); |
1230 | if (sa1 == NULL((void *)0)) { |
1231 | rval = ENOMEM12; |
1232 | goto ret; |
1233 | } |
1234 | |
1235 | sa1->tdb_satype = smsg->sadb_msg_satype; |
1236 | if ((rval = pfkeyv2_get_proto_alg(sa1->tdb_satype, |
1237 | &sa1->tdb_sproto, 0))) |
1238 | goto ret; |
1239 | |
1240 | import_address(&sa1->tdb_src.sa, headers[SADB_EXT_ADDRESS_SRC5]); |
1241 | import_address(&sa1->tdb_dst.sa, headers[SADB_EXT_ADDRESS_DST6]); |
1242 | |
1243 | /* Find an unused SA identifier */ |
1244 | sprng = (struct sadb_spirange *) headers[SADB_EXT_SPIRANGE16]; |
1245 | NET_LOCK()do { rw_enter_write(&netlock); } while (0); |
1246 | sa1->tdb_spi = reserve_spi(rdomain, |
1247 | sprng->sadb_spirange_min, sprng->sadb_spirange_max, |
1248 | &sa1->tdb_src, &sa1->tdb_dst, sa1->tdb_sproto, &rval); |
1249 | if (sa1->tdb_spi == 0) { |
1250 | NET_UNLOCK()do { rw_exit_write(&netlock); } while (0); |
1251 | goto ret; |
1252 | } |
1253 | |
1254 | /* Send a message back telling what the SA (the SPI really) is */ |
1255 | freeme_sz = sizeof(struct sadb_sa); |
1256 | if (!(freeme = malloc(freeme_sz, M_PFKEY74, M_NOWAIT0x0002 | M_ZERO0x0008))) { |
1257 | rval = ENOMEM12; |
1258 | NET_UNLOCK()do { rw_exit_write(&netlock); } while (0); |
1259 | goto ret; |
1260 | } |
1261 | |
1262 | headers[SADB_EXT_SPIRANGE16] = NULL((void *)0); |
1263 | headers[SADB_EXT_SA1] = freeme; |
1264 | bckptr = freeme; |
1265 | |
1266 | /* We really only care about the SPI, but we'll export the SA */ |
1267 | export_sa((void **) &bckptr, sa1); |
1268 | NET_UNLOCK()do { rw_exit_write(&netlock); } while (0); |
1269 | break; |
1270 | |
1271 | case SADB_UPDATE2: |
1272 | ssa = (struct sadb_sa *) headers[SADB_EXT_SA1]; |
1273 | sunionp = (union sockaddr_union *) (headers[SADB_EXT_ADDRESS_DST6] + |
1274 | sizeof(struct sadb_address)); |
1275 | |
1276 | /* Either all or none of the flow must be included */ |
1277 | if ((headers[SADB_X_EXT_SRC_FLOW21] || |
1278 | headers[SADB_X_EXT_PROTOCOL19] || |
1279 | headers[SADB_X_EXT_FLOW_TYPE20] || |
1280 | headers[SADB_X_EXT_DST_FLOW22] || |
1281 | headers[SADB_X_EXT_SRC_MASK17] || |
1282 | headers[SADB_X_EXT_DST_MASK18]) && |
1283 | !(headers[SADB_X_EXT_SRC_FLOW21] && |
1284 | headers[SADB_X_EXT_PROTOCOL19] && |
1285 | headers[SADB_X_EXT_FLOW_TYPE20] && |
1286 | headers[SADB_X_EXT_DST_FLOW22] && |
1287 | headers[SADB_X_EXT_SRC_MASK17] && |
1288 | headers[SADB_X_EXT_DST_MASK18])) { |
1289 | rval = EINVAL22; |
1290 | goto ret; |
1291 | } |
1292 | #ifdef IPSEC1 |
1293 | /* UDP encap has to be enabled and is only supported for ESP */ |
1294 | if (headers[SADB_X_EXT_UDPENCAP31] && |
1295 | (!udpencap_enable || |
1296 | smsg->sadb_msg_satype != SADB_SATYPE_ESP2)) { |
1297 | rval = EINVAL22; |
1298 | goto ret; |
1299 | } |
1300 | #endif /* IPSEC */ |
1301 | |
1302 | /* Find TDB */ |
1303 | NET_LOCK()do { rw_enter_write(&netlock); } while (0); |
1304 | sa2 = gettdb(rdomain, ssa->sadb_sa_spi, sunionp,gettdb_dir((rdomain),(ssa->sadb_sa_spi),(sunionp),(( (smsg ->sadb_msg_satype) == 1 ? 51 : (smsg->sadb_msg_satype) == 2 ? 50 : (smsg->sadb_msg_satype) == 8 ? 6 : (smsg->sadb_msg_satype ) == 9 ? 108: 4 )),0) |
1305 | SADB_X_GETSPROTO(smsg->sadb_msg_satype))gettdb_dir((rdomain),(ssa->sadb_sa_spi),(sunionp),(( (smsg ->sadb_msg_satype) == 1 ? 51 : (smsg->sadb_msg_satype) == 2 ? 50 : (smsg->sadb_msg_satype) == 8 ? 6 : (smsg->sadb_msg_satype ) == 9 ? 108: 4 )),0); |
1306 | |
1307 | /* If there's no such SA, we're done */ |
1308 | if (sa2 == NULL((void *)0)) { |
1309 | rval = ESRCH3; |
1310 | NET_UNLOCK()do { rw_exit_write(&netlock); } while (0); |
1311 | goto ret; |
1312 | } |
1313 | |
1314 | /* If this is a reserved SA */ |
1315 | if (sa2->tdb_flags & TDBF_INVALID0x00010) { |
1316 | struct tdb *newsa; |
1317 | struct ipsecinit ii; |
1318 | int alg; |
1319 | |
1320 | /* Create new TDB */ |
1321 | newsa = tdb_alloc(rdomain); |
1322 | newsa->tdb_satype = smsg->sadb_msg_satype; |
1323 | |
1324 | if ((rval = pfkeyv2_get_proto_alg(newsa->tdb_satype, |
1325 | &newsa->tdb_sproto, &alg))) { |
1326 | tdb_unref(newsa); |
1327 | NET_UNLOCK()do { rw_exit_write(&netlock); } while (0); |
1328 | goto ret; |
1329 | } |
1330 | |
1331 | /* Initialize SA */ |
1332 | bzero(&ii, sizeof(struct ipsecinit))__builtin_bzero((&ii), (sizeof(struct ipsecinit))); |
1333 | import_sa(newsa, headers[SADB_EXT_SA1], &ii); |
1334 | import_address(&newsa->tdb_src.sa, |
1335 | headers[SADB_EXT_ADDRESS_SRC5]); |
1336 | import_address(&newsa->tdb_dst.sa, |
1337 | headers[SADB_EXT_ADDRESS_DST6]); |
1338 | import_lifetime(newsa, |
1339 | headers[SADB_EXT_LIFETIME_CURRENT2], |
1340 | PFKEYV2_LIFETIME_CURRENT2); |
1341 | import_lifetime(newsa, headers[SADB_EXT_LIFETIME_SOFT4], |
1342 | PFKEYV2_LIFETIME_SOFT1); |
1343 | import_lifetime(newsa, headers[SADB_EXT_LIFETIME_HARD3], |
1344 | PFKEYV2_LIFETIME_HARD0); |
1345 | import_key(&ii, headers[SADB_EXT_KEY_AUTH8], |
1346 | PFKEYV2_AUTHENTICATION_KEY1); |
1347 | import_key(&ii, headers[SADB_EXT_KEY_ENCRYPT9], |
1348 | PFKEYV2_ENCRYPTION_KEY0); |
1349 | newsa->tdb_ids_swapped = 1; /* only on TDB_UPDATE */ |
1350 | import_identities(&newsa->tdb_ids, |
1351 | newsa->tdb_ids_swapped, |
1352 | headers[SADB_EXT_IDENTITY_SRC10], |
1353 | headers[SADB_EXT_IDENTITY_DST11]); |
1354 | if ((rval = import_flow(&newsa->tdb_filter, |
1355 | &newsa->tdb_filtermask, |
1356 | headers[SADB_X_EXT_SRC_FLOW21], |
1357 | headers[SADB_X_EXT_SRC_MASK17], |
1358 | headers[SADB_X_EXT_DST_FLOW22], |
1359 | headers[SADB_X_EXT_DST_MASK18], |
1360 | headers[SADB_X_EXT_PROTOCOL19], |
1361 | headers[SADB_X_EXT_FLOW_TYPE20]))) { |
1362 | tdb_unref(newsa); |
1363 | NET_UNLOCK()do { rw_exit_write(&netlock); } while (0); |
1364 | goto ret; |
1365 | } |
1366 | import_udpencap(newsa, headers[SADB_X_EXT_UDPENCAP31]); |
1367 | import_rdomain(newsa, headers[SADB_X_EXT_RDOMAIN37]); |
1368 | #if NPF1 > 0 |
1369 | import_tag(newsa, headers[SADB_X_EXT_TAG33]); |
1370 | import_tap(newsa, headers[SADB_X_EXT_TAP34]); |
1371 | #endif |
1372 | import_iface(newsa, headers[SADB_X_EXT_IFACE40]); |
1373 | |
1374 | /* Exclude sensitive data from reply message. */ |
1375 | headers[SADB_EXT_KEY_AUTH8] = NULL((void *)0); |
1376 | headers[SADB_EXT_KEY_ENCRYPT9] = NULL((void *)0); |
1377 | headers[SADB_X_EXT_LOCAL_AUTH28] = NULL((void *)0); |
1378 | headers[SADB_X_EXT_REMOTE_AUTH29] = NULL((void *)0); |
1379 | |
1380 | newsa->tdb_seq = smsg->sadb_msg_seq; |
1381 | |
1382 | rval = tdb_init(newsa, alg, &ii); |
1383 | if (rval) { |
1384 | rval = EINVAL22; |
1385 | tdb_unref(newsa); |
1386 | NET_UNLOCK()do { rw_exit_write(&netlock); } while (0); |
1387 | goto ret; |
1388 | } |
1389 | |
1390 | newsa->tdb_cur_allocations = sa2->tdb_cur_allocations; |
1391 | |
1392 | /* Delete old version of the SA, insert new one */ |
1393 | tdb_delete(sa2); |
1394 | |
1395 | tdb_addtimeouts(newsa); |
1396 | |
1397 | puttdb(newsa); |
1398 | } else { |
1399 | /* |
1400 | * The SA is already initialized, so we're only allowed to |
1401 | * change lifetimes and some other information; we're |
1402 | * not allowed to change keys, addresses or identities. |
1403 | */ |
1404 | if (headers[SADB_EXT_KEY_AUTH8] || |
1405 | headers[SADB_EXT_KEY_ENCRYPT9] || |
1406 | headers[SADB_EXT_IDENTITY_SRC10] || |
1407 | headers[SADB_EXT_IDENTITY_DST11] || |
1408 | headers[SADB_EXT_SENSITIVITY12]) { |
1409 | rval = EINVAL22; |
1410 | NET_UNLOCK()do { rw_exit_write(&netlock); } while (0); |
1411 | goto ret; |
1412 | } |
1413 | |
1414 | import_sa(sa2, headers[SADB_EXT_SA1], NULL((void *)0)); |
1415 | import_lifetime(sa2, |
1416 | headers[SADB_EXT_LIFETIME_CURRENT2], |
1417 | PFKEYV2_LIFETIME_CURRENT2); |
1418 | import_lifetime(sa2, headers[SADB_EXT_LIFETIME_SOFT4], |
1419 | PFKEYV2_LIFETIME_SOFT1); |
1420 | import_lifetime(sa2, headers[SADB_EXT_LIFETIME_HARD3], |
1421 | PFKEYV2_LIFETIME_HARD0); |
1422 | import_udpencap(sa2, headers[SADB_X_EXT_UDPENCAP31]); |
1423 | #if NPF1 > 0 |
1424 | import_tag(sa2, headers[SADB_X_EXT_TAG33]); |
1425 | import_tap(sa2, headers[SADB_X_EXT_TAP34]); |
1426 | #endif |
1427 | import_iface(sa2, headers[SADB_X_EXT_IFACE40]); |
1428 | |
1429 | tdb_addtimeouts(sa2); |
1430 | |
1431 | if (headers[SADB_EXT_ADDRESS_SRC5] || |
1432 | headers[SADB_EXT_ADDRESS_PROXY7]) { |
1433 | mtx_enter(&tdb_sadb_mtx); |
1434 | tdb_unlink_locked(sa2); |
1435 | import_address((struct sockaddr *)&sa2->tdb_src, |
1436 | headers[SADB_EXT_ADDRESS_SRC5]); |
1437 | import_address((struct sockaddr *)&sa2->tdb_dst, |
1438 | headers[SADB_EXT_ADDRESS_PROXY7]); |
1439 | puttdb_locked(sa2); |
1440 | mtx_leave(&tdb_sadb_mtx); |
1441 | } |
1442 | } |
1443 | NET_UNLOCK()do { rw_exit_write(&netlock); } while (0); |
1444 | |
1445 | break; |
1446 | case SADB_ADD3: |
1447 | ssa = (struct sadb_sa *) headers[SADB_EXT_SA1]; |
1448 | sunionp = (union sockaddr_union *) (headers[SADB_EXT_ADDRESS_DST6] + |
1449 | sizeof(struct sadb_address)); |
1450 | |
1451 | /* Either all or none of the flow must be included */ |
1452 | if ((headers[SADB_X_EXT_SRC_FLOW21] || |
1453 | headers[SADB_X_EXT_PROTOCOL19] || |
1454 | headers[SADB_X_EXT_FLOW_TYPE20] || |
1455 | headers[SADB_X_EXT_DST_FLOW22] || |
1456 | headers[SADB_X_EXT_SRC_MASK17] || |
1457 | headers[SADB_X_EXT_DST_MASK18]) && |
1458 | !(headers[SADB_X_EXT_SRC_FLOW21] && |
1459 | headers[SADB_X_EXT_PROTOCOL19] && |
1460 | headers[SADB_X_EXT_FLOW_TYPE20] && |
1461 | headers[SADB_X_EXT_DST_FLOW22] && |
1462 | headers[SADB_X_EXT_SRC_MASK17] && |
1463 | headers[SADB_X_EXT_DST_MASK18])) { |
1464 | rval = EINVAL22; |
1465 | goto ret; |
1466 | } |
1467 | #ifdef IPSEC1 |
1468 | /* UDP encap has to be enabled and is only supported for ESP */ |
1469 | if (headers[SADB_X_EXT_UDPENCAP31] && |
1470 | (!udpencap_enable || |
1471 | smsg->sadb_msg_satype != SADB_SATYPE_ESP2)) { |
1472 | rval = EINVAL22; |
1473 | goto ret; |
1474 | } |
1475 | #endif /* IPSEC */ |
1476 | |
1477 | NET_LOCK()do { rw_enter_write(&netlock); } while (0); |
1478 | sa2 = gettdb(rdomain, ssa->sadb_sa_spi, sunionp,gettdb_dir((rdomain),(ssa->sadb_sa_spi),(sunionp),(( (smsg ->sadb_msg_satype) == 1 ? 51 : (smsg->sadb_msg_satype) == 2 ? 50 : (smsg->sadb_msg_satype) == 8 ? 6 : (smsg->sadb_msg_satype ) == 9 ? 108: 4 )),0) |
1479 | SADB_X_GETSPROTO(smsg->sadb_msg_satype))gettdb_dir((rdomain),(ssa->sadb_sa_spi),(sunionp),(( (smsg ->sadb_msg_satype) == 1 ? 51 : (smsg->sadb_msg_satype) == 2 ? 50 : (smsg->sadb_msg_satype) == 8 ? 6 : (smsg->sadb_msg_satype ) == 9 ? 108: 4 )),0); |
1480 | |
1481 | /* We can't add an existing SA! */ |
1482 | if (sa2 != NULL((void *)0)) { |
1483 | rval = EEXIST17; |
1484 | NET_UNLOCK()do { rw_exit_write(&netlock); } while (0); |
1485 | goto ret; |
1486 | } |
1487 | |
1488 | /* We can only add "mature" SAs */ |
1489 | if (ssa->sadb_sa_state != SADB_SASTATE_MATURE1) { |
1490 | rval = EINVAL22; |
1491 | NET_UNLOCK()do { rw_exit_write(&netlock); } while (0); |
1492 | goto ret; |
1493 | } |
1494 | |
1495 | { |
1496 | struct tdb *newsa; |
1497 | struct ipsecinit ii; |
1498 | int alg; |
1499 | |
1500 | /* Create new TDB */ |
1501 | newsa = tdb_alloc(rdomain); |
1502 | newsa->tdb_satype = smsg->sadb_msg_satype; |
1503 | |
1504 | if ((rval = pfkeyv2_get_proto_alg(newsa->tdb_satype, |
1505 | &newsa->tdb_sproto, &alg))) { |
1506 | tdb_unref(newsa); |
1507 | NET_UNLOCK()do { rw_exit_write(&netlock); } while (0); |
1508 | goto ret; |
1509 | } |
1510 | |
1511 | /* Initialize SA */ |
1512 | bzero(&ii, sizeof(struct ipsecinit))__builtin_bzero((&ii), (sizeof(struct ipsecinit))); |
1513 | import_sa(newsa, headers[SADB_EXT_SA1], &ii); |
1514 | import_address(&newsa->tdb_src.sa, |
1515 | headers[SADB_EXT_ADDRESS_SRC5]); |
1516 | import_address(&newsa->tdb_dst.sa, |
1517 | headers[SADB_EXT_ADDRESS_DST6]); |
1518 | |
1519 | import_lifetime(newsa, |
1520 | headers[SADB_EXT_LIFETIME_CURRENT2], |
1521 | PFKEYV2_LIFETIME_CURRENT2); |
1522 | import_lifetime(newsa, headers[SADB_EXT_LIFETIME_SOFT4], |
1523 | PFKEYV2_LIFETIME_SOFT1); |
1524 | import_lifetime(newsa, headers[SADB_EXT_LIFETIME_HARD3], |
1525 | PFKEYV2_LIFETIME_HARD0); |
1526 | |
1527 | import_key(&ii, headers[SADB_EXT_KEY_AUTH8], |
1528 | PFKEYV2_AUTHENTICATION_KEY1); |
1529 | import_key(&ii, headers[SADB_EXT_KEY_ENCRYPT9], |
1530 | PFKEYV2_ENCRYPTION_KEY0); |
1531 | |
1532 | import_identities(&newsa->tdb_ids, |
1533 | newsa->tdb_ids_swapped, |
1534 | headers[SADB_EXT_IDENTITY_SRC10], |
1535 | headers[SADB_EXT_IDENTITY_DST11]); |
1536 | |
1537 | if ((rval = import_flow(&newsa->tdb_filter, |
1538 | &newsa->tdb_filtermask, |
1539 | headers[SADB_X_EXT_SRC_FLOW21], |
1540 | headers[SADB_X_EXT_SRC_MASK17], |
1541 | headers[SADB_X_EXT_DST_FLOW22], |
1542 | headers[SADB_X_EXT_DST_MASK18], |
1543 | headers[SADB_X_EXT_PROTOCOL19], |
1544 | headers[SADB_X_EXT_FLOW_TYPE20]))) { |
1545 | tdb_unref(newsa); |
1546 | NET_UNLOCK()do { rw_exit_write(&netlock); } while (0); |
1547 | goto ret; |
1548 | } |
1549 | import_udpencap(newsa, headers[SADB_X_EXT_UDPENCAP31]); |
1550 | import_rdomain(newsa, headers[SADB_X_EXT_RDOMAIN37]); |
1551 | #if NPF1 > 0 |
1552 | import_tag(newsa, headers[SADB_X_EXT_TAG33]); |
1553 | import_tap(newsa, headers[SADB_X_EXT_TAP34]); |
1554 | #endif |
1555 | import_iface(newsa, headers[SADB_X_EXT_IFACE40]); |
1556 | |
1557 | /* Exclude sensitive data from reply message. */ |
1558 | headers[SADB_EXT_KEY_AUTH8] = NULL((void *)0); |
1559 | headers[SADB_EXT_KEY_ENCRYPT9] = NULL((void *)0); |
1560 | headers[SADB_X_EXT_LOCAL_AUTH28] = NULL((void *)0); |
1561 | headers[SADB_X_EXT_REMOTE_AUTH29] = NULL((void *)0); |
1562 | |
1563 | newsa->tdb_seq = smsg->sadb_msg_seq; |
1564 | |
1565 | rval = tdb_init(newsa, alg, &ii); |
1566 | if (rval) { |
1567 | rval = EINVAL22; |
1568 | tdb_unref(newsa); |
1569 | NET_UNLOCK()do { rw_exit_write(&netlock); } while (0); |
1570 | goto ret; |
1571 | } |
1572 | |
1573 | tdb_addtimeouts(newsa); |
1574 | |
1575 | /* Add TDB in table */ |
1576 | puttdb(newsa); |
1577 | } |
1578 | NET_UNLOCK()do { rw_exit_write(&netlock); } while (0); |
1579 | |
1580 | break; |
1581 | |
1582 | case SADB_DELETE4: |
1583 | ssa = (struct sadb_sa *) headers[SADB_EXT_SA1]; |
1584 | sunionp = |
1585 | (union sockaddr_union *)(headers[SADB_EXT_ADDRESS_DST6] + |
1586 | sizeof(struct sadb_address)); |
1587 | |
1588 | NET_LOCK()do { rw_enter_write(&netlock); } while (0); |
1589 | sa2 = gettdb(rdomain, ssa->sadb_sa_spi, sunionp,gettdb_dir((rdomain),(ssa->sadb_sa_spi),(sunionp),(( (smsg ->sadb_msg_satype) == 1 ? 51 : (smsg->sadb_msg_satype) == 2 ? 50 : (smsg->sadb_msg_satype) == 8 ? 6 : (smsg->sadb_msg_satype ) == 9 ? 108: 4 )),0) |
1590 | SADB_X_GETSPROTO(smsg->sadb_msg_satype))gettdb_dir((rdomain),(ssa->sadb_sa_spi),(sunionp),(( (smsg ->sadb_msg_satype) == 1 ? 51 : (smsg->sadb_msg_satype) == 2 ? 50 : (smsg->sadb_msg_satype) == 8 ? 6 : (smsg->sadb_msg_satype ) == 9 ? 108: 4 )),0); |
1591 | if (sa2 == NULL((void *)0)) { |
1592 | rval = ESRCH3; |
1593 | NET_UNLOCK()do { rw_exit_write(&netlock); } while (0); |
1594 | goto ret; |
1595 | } |
1596 | |
1597 | tdb_delete(sa2); |
1598 | NET_UNLOCK()do { rw_exit_write(&netlock); } while (0); |
1599 | |
1600 | break; |
1601 | |
1602 | case SADB_X_ASKPOLICY15: |
1603 | /* Get the relevant policy */ |
1604 | NET_LOCK()do { rw_enter_write(&netlock); } while (0); |
1605 | ipa = ipsec_get_acquire(((struct sadb_x_policy *) |
1606 | headers[SADB_X_EXT_POLICY25])->sadb_x_policy_seq); |
1607 | if (ipa == NULL((void *)0)) { |
1608 | rval = ESRCH3; |
1609 | NET_UNLOCK()do { rw_exit_write(&netlock); } while (0); |
1610 | goto ret; |
1611 | } |
1612 | |
1613 | rval = pfkeyv2_policy(ipa, headers, &freeme, &freeme_sz); |
1614 | NET_UNLOCK()do { rw_exit_write(&netlock); } while (0); |
1615 | ipsec_unref_acquire(ipa); |
1616 | if (rval) |
1617 | mode = PFKEYV2_SENDMESSAGE_UNICAST1; |
1618 | |
1619 | break; |
1620 | |
1621 | case SADB_GET5: |
1622 | ssa = (struct sadb_sa *) headers[SADB_EXT_SA1]; |
1623 | sunionp = |
1624 | (union sockaddr_union *)(headers[SADB_EXT_ADDRESS_DST6] + |
1625 | sizeof(struct sadb_address)); |
1626 | |
1627 | NET_LOCK()do { rw_enter_write(&netlock); } while (0); |
1628 | sa2 = gettdb(rdomain, ssa->sadb_sa_spi, sunionp,gettdb_dir((rdomain),(ssa->sadb_sa_spi),(sunionp),(( (smsg ->sadb_msg_satype) == 1 ? 51 : (smsg->sadb_msg_satype) == 2 ? 50 : (smsg->sadb_msg_satype) == 8 ? 6 : (smsg->sadb_msg_satype ) == 9 ? 108: 4 )),0) |
1629 | SADB_X_GETSPROTO(smsg->sadb_msg_satype))gettdb_dir((rdomain),(ssa->sadb_sa_spi),(sunionp),(( (smsg ->sadb_msg_satype) == 1 ? 51 : (smsg->sadb_msg_satype) == 2 ? 50 : (smsg->sadb_msg_satype) == 8 ? 6 : (smsg->sadb_msg_satype ) == 9 ? 108: 4 )),0); |
1630 | if (sa2 == NULL((void *)0)) { |
1631 | rval = ESRCH3; |
1632 | NET_UNLOCK()do { rw_exit_write(&netlock); } while (0); |
1633 | goto ret; |
1634 | } |
1635 | |
1636 | rval = pfkeyv2_get(sa2, headers, &freeme, &freeme_sz, NULL((void *)0)); |
1637 | NET_UNLOCK()do { rw_exit_write(&netlock); } while (0); |
1638 | if (rval) |
1639 | mode = PFKEYV2_SENDMESSAGE_UNICAST1; |
1640 | |
1641 | break; |
1642 | |
1643 | case SADB_REGISTER7: |
1644 | keylock(kp)solock((kp)->kcb_socket); |
1645 | if (!(kp->kcb_flags & PFKEYV2_SOCKETFLAGS_REGISTERED1)) { |
1646 | kp->kcb_flags |= PFKEYV2_SOCKETFLAGS_REGISTERED1; |
1647 | mtx_enter(&pfkeyv2_mtx); |
1648 | nregistered++; |
1649 | mtx_leave(&pfkeyv2_mtx); |
1650 | } |
1651 | keyunlock(kp)sounlock((kp)->kcb_socket); |
1652 | |
1653 | freeme_sz = sizeof(struct sadb_supported) + sizeof(ealgs); |
1654 | if (!(freeme = malloc(freeme_sz, M_PFKEY74, M_NOWAIT0x0002 | M_ZERO0x0008))) { |
1655 | rval = ENOMEM12; |
1656 | goto ret; |
1657 | } |
1658 | |
1659 | ssup = (struct sadb_supported *) freeme; |
1660 | ssup->sadb_supported_len = freeme_sz / sizeof(uint64_t); |
1661 | |
1662 | { |
1663 | void *p = freeme + sizeof(struct sadb_supported); |
1664 | |
1665 | bcopy(&ealgs[0], p, sizeof(ealgs)); |
1666 | } |
1667 | |
1668 | headers[SADB_EXT_SUPPORTED_ENCRYPT15] = freeme; |
1669 | |
1670 | freeme2_sz = sizeof(struct sadb_supported) + sizeof(aalgs); |
1671 | if (!(freeme2 = malloc(freeme2_sz, M_PFKEY74, |
1672 | M_NOWAIT0x0002 | M_ZERO0x0008))) { |
1673 | rval = ENOMEM12; |
1674 | goto ret; |
1675 | } |
1676 | |
1677 | /* Keep track what this socket has registered for */ |
1678 | keylock(kp)solock((kp)->kcb_socket); |
1679 | kp->kcb_reg |= |
1680 | (1 << ((struct sadb_msg *)message)->sadb_msg_satype); |
1681 | keyunlock(kp)sounlock((kp)->kcb_socket); |
1682 | |
1683 | ssup = (struct sadb_supported *) freeme2; |
1684 | ssup->sadb_supported_len = freeme2_sz / sizeof(uint64_t); |
1685 | |
1686 | { |
1687 | void *p = freeme2 + sizeof(struct sadb_supported); |
1688 | |
1689 | bcopy(&aalgs[0], p, sizeof(aalgs)); |
1690 | } |
1691 | |
1692 | headers[SADB_EXT_SUPPORTED_AUTH14] = freeme2; |
1693 | |
1694 | freeme3_sz = sizeof(struct sadb_supported) + sizeof(calgs); |
1695 | if (!(freeme3 = malloc(freeme3_sz, M_PFKEY74, |
1696 | M_NOWAIT0x0002 | M_ZERO0x0008))) { |
1697 | rval = ENOMEM12; |
1698 | goto ret; |
1699 | } |
1700 | |
1701 | ssup = (struct sadb_supported *) freeme3; |
1702 | ssup->sadb_supported_len = freeme3_sz / sizeof(uint64_t); |
1703 | |
1704 | { |
1705 | void *p = freeme3 + sizeof(struct sadb_supported); |
1706 | |
1707 | bcopy(&calgs[0], p, sizeof(calgs)); |
1708 | } |
1709 | |
1710 | headers[SADB_X_EXT_SUPPORTED_COMP30] = freeme3; |
1711 | |
1712 | break; |
1713 | |
1714 | case SADB_ACQUIRE6: |
1715 | case SADB_EXPIRE8: |
1716 | /* Nothing to handle */ |
1717 | rval = 0; |
1718 | break; |
1719 | |
1720 | case SADB_FLUSH9: |
1721 | rval = 0; |
1722 | |
1723 | NET_LOCK()do { rw_enter_write(&netlock); } while (0); |
1724 | switch (smsg->sadb_msg_satype) { |
1725 | case SADB_SATYPE_UNSPEC0: |
1726 | spd_table_walk(rdomain, pfkeyv2_policy_flush, NULL((void *)0)); |
1727 | /* FALLTHROUGH */ |
1728 | case SADB_SATYPE_AH1: |
1729 | case SADB_SATYPE_ESP2: |
1730 | case SADB_X_SATYPE_IPIP7: |
1731 | case SADB_X_SATYPE_IPCOMP9: |
1732 | #ifdef TCP_SIGNATURE1 |
1733 | case SADB_X_SATYPE_TCPSIGNATURE8: |
1734 | #endif /* TCP_SIGNATURE */ |
1735 | tdb_walk(rdomain, pfkeyv2_sa_flush, |
1736 | (u_int8_t *) &(smsg->sadb_msg_satype)); |
1737 | |
1738 | break; |
1739 | |
1740 | default: |
1741 | rval = EINVAL22; /* Unknown/unsupported type */ |
1742 | } |
1743 | NET_UNLOCK()do { rw_exit_write(&netlock); } while (0); |
1744 | |
1745 | break; |
1746 | |
1747 | case SADB_DUMP10: |
1748 | { |
1749 | struct dump_state dump_state; |
1750 | dump_state.sadb_msg = (struct sadb_msg *) headers[0]; |
1751 | dump_state.socket = so; |
1752 | |
1753 | NET_LOCK()do { rw_enter_write(&netlock); } while (0); |
1754 | rval = tdb_walk(rdomain, pfkeyv2_dump_walker, &dump_state); |
1755 | NET_UNLOCK()do { rw_exit_write(&netlock); } while (0); |
1756 | if (!rval) |
1757 | goto realret; |
1758 | if ((rval == ENOMEM12) || (rval == ENOBUFS55)) |
1759 | rval = 0; |
1760 | } |
1761 | break; |
1762 | |
1763 | case SADB_X_GRPSPIS14: |
1764 | { |
1765 | struct tdb *tdb1, *tdb2, *tdb3; |
1766 | struct sadb_protocol *sa_proto; |
1767 | |
1768 | ssa = (struct sadb_sa *) headers[SADB_EXT_SA1]; |
1769 | sunionp = (union sockaddr_union *) (headers[SADB_EXT_ADDRESS_DST6] + |
1770 | sizeof(struct sadb_address)); |
1771 | |
1772 | NET_LOCK()do { rw_enter_write(&netlock); } while (0); |
1773 | tdb1 = gettdb(rdomain, ssa->sadb_sa_spi, sunionp,gettdb_dir((rdomain),(ssa->sadb_sa_spi),(sunionp),(( (smsg ->sadb_msg_satype) == 1 ? 51 : (smsg->sadb_msg_satype) == 2 ? 50 : (smsg->sadb_msg_satype) == 8 ? 6 : (smsg->sadb_msg_satype ) == 9 ? 108: 4 )),0) |
1774 | SADB_X_GETSPROTO(smsg->sadb_msg_satype))gettdb_dir((rdomain),(ssa->sadb_sa_spi),(sunionp),(( (smsg ->sadb_msg_satype) == 1 ? 51 : (smsg->sadb_msg_satype) == 2 ? 50 : (smsg->sadb_msg_satype) == 8 ? 6 : (smsg->sadb_msg_satype ) == 9 ? 108: 4 )),0); |
1775 | if (tdb1 == NULL((void *)0)) { |
1776 | rval = ESRCH3; |
1777 | NET_UNLOCK()do { rw_exit_write(&netlock); } while (0); |
1778 | goto ret; |
1779 | } |
1780 | |
1781 | ssa = (struct sadb_sa *) headers[SADB_X_EXT_SA223]; |
1782 | sunionp = (union sockaddr_union *) (headers[SADB_X_EXT_DST224] + |
1783 | sizeof(struct sadb_address)); |
1784 | sa_proto = (struct sadb_protocol *) headers[SADB_X_EXT_SATYPE235]; |
1785 | |
1786 | /* optionally fetch tdb2 from rdomain2 */ |
1787 | tdb2 = gettdb(srdomain ? srdomain->sadb_x_rdomain_dom2 : rdomain,gettdb_dir((srdomain ? srdomain->sadb_x_rdomain_dom2 : rdomain ),(ssa->sadb_sa_spi),(sunionp),(( (sa_proto->sadb_protocol_proto ) == 1 ? 51 : (sa_proto->sadb_protocol_proto) == 2 ? 50 : ( sa_proto->sadb_protocol_proto) == 8 ? 6 : (sa_proto->sadb_protocol_proto ) == 9 ? 108: 4 )),0) |
1788 | ssa->sadb_sa_spi, sunionp,gettdb_dir((srdomain ? srdomain->sadb_x_rdomain_dom2 : rdomain ),(ssa->sadb_sa_spi),(sunionp),(( (sa_proto->sadb_protocol_proto ) == 1 ? 51 : (sa_proto->sadb_protocol_proto) == 2 ? 50 : ( sa_proto->sadb_protocol_proto) == 8 ? 6 : (sa_proto->sadb_protocol_proto ) == 9 ? 108: 4 )),0) |
1789 | SADB_X_GETSPROTO(sa_proto->sadb_protocol_proto))gettdb_dir((srdomain ? srdomain->sadb_x_rdomain_dom2 : rdomain ),(ssa->sadb_sa_spi),(sunionp),(( (sa_proto->sadb_protocol_proto ) == 1 ? 51 : (sa_proto->sadb_protocol_proto) == 2 ? 50 : ( sa_proto->sadb_protocol_proto) == 8 ? 6 : (sa_proto->sadb_protocol_proto ) == 9 ? 108: 4 )),0); |
1790 | if (tdb2 == NULL((void *)0)) { |
1791 | tdb_unref(tdb1); |
1792 | rval = ESRCH3; |
1793 | NET_UNLOCK()do { rw_exit_write(&netlock); } while (0); |
1794 | goto ret; |
1795 | } |
1796 | |
1797 | /* Detect cycles */ |
1798 | for (tdb3 = tdb2; tdb3; tdb3 = tdb3->tdb_onext) |
1799 | if (tdb3 == tdb1) { |
1800 | tdb_unref(tdb1); |
1801 | tdb_unref(tdb2); |
1802 | rval = ESRCH3; |
1803 | NET_UNLOCK()do { rw_exit_write(&netlock); } while (0); |
1804 | goto ret; |
1805 | } |
1806 | |
1807 | /* Maintenance */ |
1808 | if ((tdb1->tdb_onext) && |
1809 | (tdb1->tdb_onext->tdb_inext == tdb1)) { |
1810 | tdb_unref(tdb1->tdb_onext->tdb_inext); |
1811 | tdb1->tdb_onext->tdb_inext = NULL((void *)0); |
1812 | } |
1813 | |
1814 | if ((tdb2->tdb_inext) && |
1815 | (tdb2->tdb_inext->tdb_onext == tdb2)) { |
1816 | tdb_unref(tdb2->tdb_inext->tdb_onext); |
1817 | tdb2->tdb_inext->tdb_onext = NULL((void *)0); |
1818 | } |
1819 | |
1820 | /* Link them */ |
1821 | tdb1->tdb_onext = tdb2; |
1822 | tdb2->tdb_inext = tdb1; |
1823 | NET_UNLOCK()do { rw_exit_write(&netlock); } while (0); |
1824 | } |
1825 | break; |
1826 | |
1827 | case SADB_X_DELFLOW13: |
1828 | delflag = 1; |
1829 | /*FALLTHROUGH*/ |
1830 | case SADB_X_ADDFLOW12: |
1831 | { |
1832 | struct sadb_protocol *sab; |
1833 | union sockaddr_union *ssrc; |
1834 | int exists = 0; |
1835 | |
1836 | NET_LOCK()do { rw_enter_write(&netlock); } while (0); |
1837 | if ((rnh = spd_table_add(rdomain)) == NULL((void *)0)) { |
1838 | rval = ENOMEM12; |
1839 | NET_UNLOCK()do { rw_exit_write(&netlock); } while (0); |
1840 | goto ret; |
1841 | } |
1842 | |
1843 | sab = (struct sadb_protocol *) headers[SADB_X_EXT_FLOW_TYPE20]; |
1844 | |
1845 | if ((sab->sadb_protocol_direction != IPSP_DIRECTION_IN0x1) && |
1846 | (sab->sadb_protocol_direction != IPSP_DIRECTION_OUT0x2)) { |
1847 | rval = EINVAL22; |
1848 | NET_UNLOCK()do { rw_exit_write(&netlock); } while (0); |
1849 | goto ret; |
1850 | } |
1851 | |
1852 | /* If the security protocol wasn't specified, pretend it was ESP */ |
1853 | if (smsg->sadb_msg_satype == 0) |
1854 | smsg->sadb_msg_satype = SADB_SATYPE_ESP2; |
1855 | |
1856 | if (headers[SADB_EXT_ADDRESS_DST6]) |
1857 | sunionp = (union sockaddr_union *) |
1858 | (headers[SADB_EXT_ADDRESS_DST6] + |
1859 | sizeof(struct sadb_address)); |
1860 | else |
1861 | sunionp = NULL((void *)0); |
1862 | |
1863 | if (headers[SADB_EXT_ADDRESS_SRC5]) |
1864 | ssrc = (union sockaddr_union *) |
1865 | (headers[SADB_EXT_ADDRESS_SRC5] + |
1866 | sizeof(struct sadb_address)); |
1867 | else |
1868 | ssrc = NULL((void *)0); |
1869 | |
1870 | if ((rval = import_flow(&encapdst, &encapnetmask, |
1871 | headers[SADB_X_EXT_SRC_FLOW21], headers[SADB_X_EXT_SRC_MASK17], |
1872 | headers[SADB_X_EXT_DST_FLOW22], headers[SADB_X_EXT_DST_MASK18], |
1873 | headers[SADB_X_EXT_PROTOCOL19], |
1874 | headers[SADB_X_EXT_FLOW_TYPE20]))) { |
1875 | NET_UNLOCK()do { rw_exit_write(&netlock); } while (0); |
1876 | goto ret; |
1877 | } |
1878 | |
1879 | /* Determine whether the exact same SPD entry already exists. */ |
1880 | if ((rn = rn_match(&encapdst, rnh)) != NULL((void *)0)) { |
1881 | ipo = (struct ipsec_policy *)rn; |
1882 | |
1883 | /* Verify that the entry is identical */ |
1884 | if (bcmp(&ipo->ipo_addr, &encapdst, |
1885 | sizeof(struct sockaddr_encap)) || |
1886 | bcmp(&ipo->ipo_mask, &encapnetmask, |
1887 | sizeof(struct sockaddr_encap))) |
1888 | ipo = NULL((void *)0); /* Fall through */ |
1889 | else |
1890 | exists = 1; |
1891 | } else |
1892 | ipo = NULL((void *)0); |
1893 | |
1894 | /* |
1895 | * If the existing policy is static, only delete or update |
1896 | * it if the new one is also static. |
1897 | */ |
1898 | if (exists && (ipo->ipo_flags & IPSP_POLICY_STATIC0x0002)) { |
1899 | if (!(sab->sadb_protocol_flags & |
1900 | SADB_X_POLICYFLAGS_POLICY0x0001)) { |
1901 | NET_UNLOCK()do { rw_exit_write(&netlock); } while (0); |
1902 | goto ret; |
1903 | } |
1904 | } |
1905 | |
1906 | /* Delete ? */ |
1907 | if (delflag) { |
1908 | if (exists) { |
1909 | rval = ipsec_delete_policy(ipo); |
1910 | NET_UNLOCK()do { rw_exit_write(&netlock); } while (0); |
1911 | goto ret; |
1912 | } |
1913 | |
1914 | /* If we were asked to delete something non-existent, error. */ |
1915 | rval = ESRCH3; |
1916 | NET_UNLOCK()do { rw_exit_write(&netlock); } while (0); |
1917 | break; |
1918 | } |
1919 | |
1920 | if (!exists) { |
1921 | /* Allocate policy entry */ |
1922 | ipo = pool_get(&ipsec_policy_pool, PR_NOWAIT0x0002|PR_ZERO0x0008); |
1923 | if (ipo == NULL((void *)0)) { |
1924 | rval = ENOMEM12; |
1925 | NET_UNLOCK()do { rw_exit_write(&netlock); } while (0); |
1926 | goto ret; |
1927 | } |
1928 | } |
1929 | |
1930 | switch (sab->sadb_protocol_proto) { |
1931 | case SADB_X_FLOW_TYPE_USE1: |
1932 | ipo->ipo_type = IPSP_IPSEC_USE0; |
1933 | break; |
1934 | |
1935 | case SADB_X_FLOW_TYPE_ACQUIRE2: |
1936 | ipo->ipo_type = IPSP_IPSEC_ACQUIRE1; |
1937 | break; |
1938 | |
1939 | case SADB_X_FLOW_TYPE_REQUIRE3: |
1940 | ipo->ipo_type = IPSP_IPSEC_REQUIRE2; |
1941 | break; |
1942 | |
1943 | case SADB_X_FLOW_TYPE_DENY5: |
1944 | ipo->ipo_type = IPSP_DENY4; |
1945 | break; |
1946 | |
1947 | case SADB_X_FLOW_TYPE_BYPASS4: |
1948 | ipo->ipo_type = IPSP_PERMIT3; |
1949 | break; |
1950 | |
1951 | case SADB_X_FLOW_TYPE_DONTACQ6: |
1952 | ipo->ipo_type = IPSP_IPSEC_DONTACQ5; |
1953 | break; |
1954 | |
1955 | default: |
1956 | if (!exists) |
1957 | pool_put(&ipsec_policy_pool, ipo); |
1958 | else |
1959 | ipsec_delete_policy(ipo); |
1960 | |
1961 | rval = EINVAL22; |
1962 | NET_UNLOCK()do { rw_exit_write(&netlock); } while (0); |
1963 | goto ret; |
1964 | } |
1965 | |
1966 | if (sab->sadb_protocol_flags & SADB_X_POLICYFLAGS_POLICY0x0001) |
1967 | ipo->ipo_flags |= IPSP_POLICY_STATIC0x0002; |
1968 | |
1969 | if (sunionp) |
1970 | bcopy(sunionp, &ipo->ipo_dst, |
1971 | sizeof(union sockaddr_union)); |
1972 | else |
1973 | bzero(&ipo->ipo_dst, sizeof(union sockaddr_union))__builtin_bzero((&ipo->ipo_dst), (sizeof(union sockaddr_union ))); |
1974 | |
1975 | if (ssrc) |
1976 | bcopy(ssrc, &ipo->ipo_src, |
1977 | sizeof(union sockaddr_union)); |
1978 | else |
1979 | bzero(&ipo->ipo_src, sizeof(union sockaddr_union))__builtin_bzero((&ipo->ipo_src), (sizeof(union sockaddr_union ))); |
1980 | |
1981 | ipo->ipo_sproto = SADB_X_GETSPROTO(smsg->sadb_msg_satype)( (smsg->sadb_msg_satype) == 1 ? 51 : (smsg->sadb_msg_satype ) == 2 ? 50 : (smsg->sadb_msg_satype) == 8 ? 6 : (smsg-> sadb_msg_satype) == 9 ? 108: 4 ); |
1982 | |
1983 | if (ipo->ipo_ids) { |
1984 | ipsp_ids_free(ipo->ipo_ids); |
1985 | ipo->ipo_ids = NULL((void *)0); |
1986 | } |
1987 | |
1988 | if ((sid = headers[SADB_EXT_IDENTITY_SRC10]) != NULL((void *)0) && |
1989 | (did = headers[SADB_EXT_IDENTITY_DST11]) != NULL((void *)0)) { |
1990 | import_identities(&ipo->ipo_ids, 0, sid, did); |
1991 | if (ipo->ipo_ids == NULL((void *)0)) { |
1992 | if (exists) |
1993 | ipsec_delete_policy(ipo); |
1994 | else |
1995 | pool_put(&ipsec_policy_pool, ipo); |
1996 | rval = ENOBUFS55; |
1997 | NET_UNLOCK()do { rw_exit_write(&netlock); } while (0); |
1998 | goto ret; |
1999 | } |
2000 | } |
2001 | |
2002 | /* Flow type */ |
2003 | if (!exists) { |
2004 | /* Initialize policy entry */ |
2005 | bcopy(&encapdst, &ipo->ipo_addr, |
2006 | sizeof(struct sockaddr_encap)); |
2007 | bcopy(&encapnetmask, &ipo->ipo_mask, |
2008 | sizeof(struct sockaddr_encap)); |
2009 | |
2010 | TAILQ_INIT(&ipo->ipo_acquires)do { (&ipo->ipo_acquires)->tqh_first = ((void *)0); (&ipo->ipo_acquires)->tqh_last = &(&ipo-> ipo_acquires)->tqh_first; } while (0); |
2011 | ipo->ipo_rdomain = rdomain; |
2012 | refcnt_init(&ipo->ipo_refcnt); |
2013 | |
2014 | /* Add SPD entry */ |
2015 | if ((rnh = spd_table_get(rdomain)) == NULL((void *)0) || |
2016 | (rn = rn_addroute((caddr_t)&ipo->ipo_addr, |
2017 | (caddr_t)&ipo->ipo_mask, rnh, |
2018 | ipo->ipo_nodes, 0)) == NULL((void *)0)) { |
2019 | /* Remove from linked list of policies on TDB */ |
2020 | mtx_enter(&ipo_tdb_mtx); |
2021 | if (ipo->ipo_tdb != NULL((void *)0)) { |
2022 | TAILQ_REMOVE(do { if (((ipo)->ipo_tdb_next.tqe_next) != ((void *)0)) (ipo )->ipo_tdb_next.tqe_next->ipo_tdb_next.tqe_prev = (ipo) ->ipo_tdb_next.tqe_prev; else (&ipo->ipo_tdb->tdb_policy_head )->tqh_last = (ipo)->ipo_tdb_next.tqe_prev; *(ipo)-> ipo_tdb_next.tqe_prev = (ipo)->ipo_tdb_next.tqe_next; ((ipo )->ipo_tdb_next.tqe_prev) = ((void *)-1); ((ipo)->ipo_tdb_next .tqe_next) = ((void *)-1); } while (0) |
2023 | &ipo->ipo_tdb->tdb_policy_head,do { if (((ipo)->ipo_tdb_next.tqe_next) != ((void *)0)) (ipo )->ipo_tdb_next.tqe_next->ipo_tdb_next.tqe_prev = (ipo) ->ipo_tdb_next.tqe_prev; else (&ipo->ipo_tdb->tdb_policy_head )->tqh_last = (ipo)->ipo_tdb_next.tqe_prev; *(ipo)-> ipo_tdb_next.tqe_prev = (ipo)->ipo_tdb_next.tqe_next; ((ipo )->ipo_tdb_next.tqe_prev) = ((void *)-1); ((ipo)->ipo_tdb_next .tqe_next) = ((void *)-1); } while (0) |
2024 | ipo, ipo_tdb_next)do { if (((ipo)->ipo_tdb_next.tqe_next) != ((void *)0)) (ipo )->ipo_tdb_next.tqe_next->ipo_tdb_next.tqe_prev = (ipo) ->ipo_tdb_next.tqe_prev; else (&ipo->ipo_tdb->tdb_policy_head )->tqh_last = (ipo)->ipo_tdb_next.tqe_prev; *(ipo)-> ipo_tdb_next.tqe_prev = (ipo)->ipo_tdb_next.tqe_next; ((ipo )->ipo_tdb_next.tqe_prev) = ((void *)-1); ((ipo)->ipo_tdb_next .tqe_next) = ((void *)-1); } while (0); |
2025 | tdb_unref(ipo->ipo_tdb); |
2026 | ipo->ipo_tdb = NULL((void *)0); |
2027 | } |
2028 | mtx_leave(&ipo_tdb_mtx); |
2029 | if (ipo->ipo_ids) |
2030 | ipsp_ids_free(ipo->ipo_ids); |
2031 | pool_put(&ipsec_policy_pool, ipo); |
2032 | NET_UNLOCK()do { rw_exit_write(&netlock); } while (0); |
2033 | goto ret; |
2034 | } |
2035 | TAILQ_INSERT_HEAD(&ipsec_policy_head, ipo, ipo_list)do { if (((ipo)->ipo_list.tqe_next = (&ipsec_policy_head )->tqh_first) != ((void *)0)) (&ipsec_policy_head)-> tqh_first->ipo_list.tqe_prev = &(ipo)->ipo_list.tqe_next ; else (&ipsec_policy_head)->tqh_last = &(ipo)-> ipo_list.tqe_next; (&ipsec_policy_head)->tqh_first = ( ipo); (ipo)->ipo_list.tqe_prev = &(&ipsec_policy_head )->tqh_first; } while (0); |
2036 | ipsec_in_use++; |
2037 | } else { |
2038 | ipo->ipo_last_searched = ipo->ipo_flags = 0; |
2039 | } |
2040 | NET_UNLOCK()do { rw_exit_write(&netlock); } while (0); |
2041 | } |
2042 | break; |
2043 | |
2044 | case SADB_X_PROMISC11: |
2045 | if (len >= 2 * sizeof(struct sadb_msg)) { |
2046 | struct mbuf *packet; |
2047 | |
2048 | if ((rval = pfdatatopacket(message, len, &packet)) != 0) |
2049 | goto ret; |
2050 | |
2051 | SRPL_FOREACH(bkp, &sr, &pkptable.pkp_list, kcb_list)for ((bkp) = srp_enter((&sr), &(&pkptable.pkp_list )->sl_head); (bkp) != ((void *)0); (bkp) = srp_follow((& sr), &(bkp)->kcb_list.se_next)) { |
2052 | if (bkp == kp || bkp->kcb_rdomain != kp->kcb_rdomain) |
2053 | continue; |
2054 | |
2055 | if (!smsg->sadb_msg_seq || |
2056 | (smsg->sadb_msg_seq == kp->kcb_pid)) { |
2057 | keylock(bkp)solock((bkp)->kcb_socket); |
2058 | pfkey_sendup(bkp, packet, 1); |
2059 | keyunlock(bkp)sounlock((bkp)->kcb_socket); |
2060 | } |
2061 | } |
2062 | SRPL_LEAVE(&sr)srp_leave((&sr)); |
2063 | |
2064 | m_freem(packet); |
2065 | } else { |
2066 | if (len != sizeof(struct sadb_msg)) { |
2067 | rval = EINVAL22; |
2068 | goto ret; |
2069 | } |
2070 | |
2071 | keylock(kp)solock((kp)->kcb_socket); |
2072 | i = (kp->kcb_flags & |
2073 | PFKEYV2_SOCKETFLAGS_PROMISC2) ? 1 : 0; |
2074 | j = smsg->sadb_msg_satype ? 1 : 0; |
2075 | |
2076 | if (i ^ j) { |
2077 | if (j) { |
2078 | kp->kcb_flags |= |
2079 | PFKEYV2_SOCKETFLAGS_PROMISC2; |
2080 | mtx_enter(&pfkeyv2_mtx); |
2081 | npromisc++; |
2082 | mtx_leave(&pfkeyv2_mtx); |
2083 | } else { |
2084 | kp->kcb_flags &= |
2085 | ~PFKEYV2_SOCKETFLAGS_PROMISC2; |
2086 | mtx_enter(&pfkeyv2_mtx); |
2087 | npromisc--; |
2088 | mtx_leave(&pfkeyv2_mtx); |
2089 | } |
2090 | } |
2091 | keyunlock(kp)sounlock((kp)->kcb_socket); |
2092 | } |
2093 | |
2094 | break; |
2095 | |
2096 | default: |
2097 | rval = EINVAL22; |
2098 | goto ret; |
2099 | } |
2100 | |
2101 | ret: |
2102 | if (rval) { |
2103 | if ((rval == EINVAL22) || (rval == ENOMEM12) || (rval == ENOBUFS55)) |
2104 | goto realret; |
2105 | |
2106 | for (i = 1; i <= SADB_EXT_MAX40; i++) |
2107 | headers[i] = NULL((void *)0); |
2108 | |
2109 | smsg->sadb_msg_errno = abs(rval); |
2110 | } else { |
2111 | uint64_t seen = 0LL; |
2112 | |
2113 | for (i = 1; i <= SADB_EXT_MAX40; i++) |
2114 | if (headers[i]) |
2115 | seen |= (1LL << i); |
2116 | |
2117 | if ((seen & sadb_exts_allowed_out[smsg->sadb_msg_type]) |
2118 | != seen) { |
2119 | rval = EPERM1; |
2120 | goto realret; |
2121 | } |
2122 | |
2123 | if ((seen & sadb_exts_required_out[smsg->sadb_msg_type]) != |
2124 | sadb_exts_required_out[smsg->sadb_msg_type]) { |
2125 | rval = EPERM1; |
2126 | goto realret; |
2127 | } |
2128 | } |
2129 | |
2130 | rval = pfkeyv2_sendmessage(headers, mode, so, 0, 0, kp->kcb_rdomain); |
2131 | |
2132 | realret: |
2133 | |
2134 | if (freeme != NULL((void *)0)) |
2135 | explicit_bzero(freeme, freeme_sz); |
2136 | free(freeme, M_PFKEY74, freeme_sz); |
2137 | free(freeme2, M_PFKEY74, freeme2_sz); |
2138 | free(freeme3, M_PFKEY74, freeme3_sz); |
2139 | |
2140 | explicit_bzero(message, len); |
2141 | free(message, M_PFKEY74, len); |
2142 | |
2143 | free(sa1, M_PFKEY74, sizeof(*sa1)); |
2144 | |
2145 | NET_LOCK()do { rw_enter_write(&netlock); } while (0); |
2146 | tdb_unref(sa2); |
2147 | NET_UNLOCK()do { rw_exit_write(&netlock); } while (0); |
2148 | |
2149 | return (rval); |
2150 | } |
2151 | |
2152 | /* |
2153 | * Send an ACQUIRE message to key management, to get a new SA. |
2154 | */ |
2155 | int |
2156 | pfkeyv2_acquire(struct ipsec_policy *ipo, union sockaddr_union *gw, |
2157 | union sockaddr_union *laddr, u_int32_t *seq, struct sockaddr_encap *ddst) |
2158 | { |
2159 | void *p, *headers[SADB_EXT_MAX40 + 1], *buffer = NULL((void *)0); |
2160 | struct sadb_comb *sadb_comb; |
2161 | struct sadb_address *sadd; |
2162 | struct sadb_prop *sa_prop; |
2163 | struct sadb_msg *smsg; |
2164 | int rval = 0; |
2165 | int i, j, registered; |
2166 | |
2167 | mtx_enter(&pfkeyv2_mtx); |
2168 | *seq = pfkeyv2_seq++; |
2169 | |
2170 | registered = nregistered; |
2171 | mtx_leave(&pfkeyv2_mtx); |
2172 | |
2173 | if (!registered) { |
2174 | rval = ESRCH3; |
2175 | goto ret; |
2176 | } |
2177 | |
2178 | /* How large a buffer do we need... XXX we only do one proposal for now */ |
2179 | i = sizeof(struct sadb_msg) + |
2180 | (laddr == NULL((void *)0) ? 0 : sizeof(struct sadb_address) + |
2181 | PADUP(ipo->ipo_src.sa.sa_len)(((ipo->ipo_src.sa.sa_len) + sizeof(uint64_t) - 1) & ~ (sizeof(uint64_t) - 1))) + |
2182 | sizeof(struct sadb_address) + PADUP(gw->sa.sa_len)(((gw->sa.sa_len) + sizeof(uint64_t) - 1) & ~(sizeof(uint64_t ) - 1)) + |
2183 | sizeof(struct sadb_prop) + 1 * sizeof(struct sadb_comb); |
2184 | |
2185 | if (ipo->ipo_ids) { |
2186 | i += sizeof(struct sadb_ident) + PADUP(ipo->ipo_ids->id_local->len)(((ipo->ipo_ids->id_local->len) + sizeof(uint64_t) - 1) & ~(sizeof(uint64_t) - 1)); |
2187 | i += sizeof(struct sadb_ident) + PADUP(ipo->ipo_ids->id_remote->len)(((ipo->ipo_ids->id_remote->len) + sizeof(uint64_t) - 1) & ~(sizeof(uint64_t) - 1)); |
2188 | } |
2189 | |
2190 | /* Allocate */ |
2191 | if (!(p = malloc(i, M_PFKEY74, M_NOWAIT0x0002 | M_ZERO0x0008))) { |
2192 | rval = ENOMEM12; |
2193 | goto ret; |
2194 | } |
2195 | |
2196 | bzero(headers, sizeof(headers))__builtin_bzero((headers), (sizeof(headers))); |
2197 | |
2198 | buffer = p; |
2199 | |
2200 | headers[0] = p; |
2201 | p += sizeof(struct sadb_msg); |
2202 | |
2203 | smsg = (struct sadb_msg *) headers[0]; |
2204 | smsg->sadb_msg_version = PF_KEY_V22; |
2205 | smsg->sadb_msg_type = SADB_ACQUIRE6; |
2206 | smsg->sadb_msg_len = i / sizeof(uint64_t); |
2207 | smsg->sadb_msg_seq = *seq; |
2208 | |
2209 | if (ipo->ipo_sproto == IPPROTO_ESP50) |
2210 | smsg->sadb_msg_satype = SADB_SATYPE_ESP2; |
2211 | else if (ipo->ipo_sproto == IPPROTO_AH51) |
2212 | smsg->sadb_msg_satype = SADB_SATYPE_AH1; |
2213 | else if (ipo->ipo_sproto == IPPROTO_IPCOMP108) |
2214 | smsg->sadb_msg_satype = SADB_X_SATYPE_IPCOMP9; |
2215 | |
2216 | if (laddr) { |
2217 | headers[SADB_EXT_ADDRESS_SRC5] = p; |
2218 | p += sizeof(struct sadb_address) + PADUP(laddr->sa.sa_len)(((laddr->sa.sa_len) + sizeof(uint64_t) - 1) & ~(sizeof (uint64_t) - 1)); |
2219 | sadd = (struct sadb_address *) headers[SADB_EXT_ADDRESS_SRC5]; |
2220 | sadd->sadb_address_len = (sizeof(struct sadb_address) + |
2221 | laddr->sa.sa_len + sizeof(uint64_t) - 1) / |
2222 | sizeof(uint64_t); |
2223 | bcopy(laddr, headers[SADB_EXT_ADDRESS_SRC5] + |
2224 | sizeof(struct sadb_address), laddr->sa.sa_len); |
2225 | } |
2226 | |
2227 | headers[SADB_EXT_ADDRESS_DST6] = p; |
2228 | p += sizeof(struct sadb_address) + PADUP(gw->sa.sa_len)(((gw->sa.sa_len) + sizeof(uint64_t) - 1) & ~(sizeof(uint64_t ) - 1)); |
2229 | sadd = (struct sadb_address *) headers[SADB_EXT_ADDRESS_DST6]; |
2230 | sadd->sadb_address_len = (sizeof(struct sadb_address) + |
2231 | gw->sa.sa_len + sizeof(uint64_t) - 1) / sizeof(uint64_t); |
2232 | bcopy(gw, headers[SADB_EXT_ADDRESS_DST6] + sizeof(struct sadb_address), |
2233 | gw->sa.sa_len); |
2234 | |
2235 | if (ipo->ipo_ids) |
2236 | export_identities(&p, ipo->ipo_ids, 0, headers); |
2237 | |
2238 | headers[SADB_EXT_PROPOSAL13] = p; |
2239 | p += sizeof(struct sadb_prop); |
2240 | sa_prop = (struct sadb_prop *) headers[SADB_EXT_PROPOSAL13]; |
2241 | sa_prop->sadb_prop_num = 1; /* XXX One proposal only */ |
2242 | sa_prop->sadb_prop_len = (sizeof(struct sadb_prop) + |
2243 | (sizeof(struct sadb_comb) * sa_prop->sadb_prop_num)) / |
2244 | sizeof(uint64_t); |
2245 | |
2246 | sadb_comb = p; |
2247 | |
2248 | /* XXX Should actually ask the crypto layer what's supported */ |
2249 | for (j = 0; j < sa_prop->sadb_prop_num; j++) { |
2250 | sadb_comb->sadb_comb_flags = 0; |
2251 | #ifdef IPSEC1 |
2252 | if (ipsec_require_pfs) |
2253 | sadb_comb->sadb_comb_flags |= SADB_SAFLAGS_PFS0x001; |
2254 | |
2255 | /* Set the encryption algorithm */ |
2256 | if (ipo->ipo_sproto == IPPROTO_ESP50) { |
2257 | if (!strncasecmp(ipsec_def_enc, "aes", |
2258 | sizeof("aes"))) { |
2259 | sadb_comb->sadb_comb_encrypt = SADB_X_EALG_AES12; |
2260 | sadb_comb->sadb_comb_encrypt_minbits = 128; |
2261 | sadb_comb->sadb_comb_encrypt_maxbits = 256; |
2262 | } else if (!strncasecmp(ipsec_def_enc, "aesctr", |
2263 | sizeof("aesctr"))) { |
2264 | sadb_comb->sadb_comb_encrypt = SADB_X_EALG_AESCTR13; |
2265 | sadb_comb->sadb_comb_encrypt_minbits = 128+32; |
2266 | sadb_comb->sadb_comb_encrypt_maxbits = 256+32; |
2267 | } else if (!strncasecmp(ipsec_def_enc, "3des", |
2268 | sizeof("3des"))) { |
2269 | sadb_comb->sadb_comb_encrypt = SADB_EALG_3DESCBC3; |
2270 | sadb_comb->sadb_comb_encrypt_minbits = 192; |
2271 | sadb_comb->sadb_comb_encrypt_maxbits = 192; |
2272 | } else if (!strncasecmp(ipsec_def_enc, "blowfish", |
2273 | sizeof("blowfish"))) { |
2274 | sadb_comb->sadb_comb_encrypt = SADB_X_EALG_BLF7; |
2275 | sadb_comb->sadb_comb_encrypt_minbits = 40; |
2276 | sadb_comb->sadb_comb_encrypt_maxbits = BLF_MAXKEYLEN((16 -2)*4) * 8; |
2277 | } else if (!strncasecmp(ipsec_def_enc, "cast128", |
2278 | sizeof("cast128"))) { |
2279 | sadb_comb->sadb_comb_encrypt = SADB_X_EALG_CAST6; |
2280 | sadb_comb->sadb_comb_encrypt_minbits = 40; |
2281 | sadb_comb->sadb_comb_encrypt_maxbits = 128; |
2282 | } |
2283 | } else if (ipo->ipo_sproto == IPPROTO_IPCOMP108) { |
2284 | /* Set the compression algorithm */ |
2285 | if (!strncasecmp(ipsec_def_comp, "deflate", |
2286 | sizeof("deflate"))) { |
2287 | sadb_comb->sadb_comb_encrypt = SADB_X_CALG_DEFLATE2; |
2288 | sadb_comb->sadb_comb_encrypt_minbits = 0; |
2289 | sadb_comb->sadb_comb_encrypt_maxbits = 0; |
2290 | } |
2291 | } |
2292 | |
2293 | /* Set the authentication algorithm */ |
2294 | if (!strncasecmp(ipsec_def_auth, "hmac-sha1", |
2295 | sizeof("hmac-sha1"))) { |
2296 | sadb_comb->sadb_comb_auth = SADB_AALG_SHA1HMAC3; |
2297 | sadb_comb->sadb_comb_auth_minbits = 160; |
2298 | sadb_comb->sadb_comb_auth_maxbits = 160; |
2299 | } else if (!strncasecmp(ipsec_def_auth, "hmac-ripemd160", |
2300 | sizeof("hmac_ripemd160"))) { |
2301 | sadb_comb->sadb_comb_auth = SADB_X_AALG_RIPEMD160HMAC8; |
2302 | sadb_comb->sadb_comb_auth_minbits = 160; |
2303 | sadb_comb->sadb_comb_auth_maxbits = 160; |
2304 | } else if (!strncasecmp(ipsec_def_auth, "hmac-md5", |
2305 | sizeof("hmac-md5"))) { |
2306 | sadb_comb->sadb_comb_auth = SADB_AALG_MD5HMAC2; |
2307 | sadb_comb->sadb_comb_auth_minbits = 128; |
2308 | sadb_comb->sadb_comb_auth_maxbits = 128; |
2309 | } else if (!strncasecmp(ipsec_def_auth, "hmac-sha2-256", |
2310 | sizeof("hmac-sha2-256"))) { |
2311 | sadb_comb->sadb_comb_auth = SADB_X_AALG_SHA2_2565; |
2312 | sadb_comb->sadb_comb_auth_minbits = 256; |
2313 | sadb_comb->sadb_comb_auth_maxbits = 256; |
2314 | } else if (!strncasecmp(ipsec_def_auth, "hmac-sha2-384", |
2315 | sizeof("hmac-sha2-384"))) { |
2316 | sadb_comb->sadb_comb_auth = SADB_X_AALG_SHA2_3846; |
2317 | sadb_comb->sadb_comb_auth_minbits = 384; |
2318 | sadb_comb->sadb_comb_auth_maxbits = 384; |
2319 | } else if (!strncasecmp(ipsec_def_auth, "hmac-sha2-512", |
2320 | sizeof("hmac-sha2-512"))) { |
2321 | sadb_comb->sadb_comb_auth = SADB_X_AALG_SHA2_5127; |
2322 | sadb_comb->sadb_comb_auth_minbits = 512; |
2323 | sadb_comb->sadb_comb_auth_maxbits = 512; |
2324 | } |
2325 | |
2326 | sadb_comb->sadb_comb_soft_allocations = ipsec_soft_allocations; |
2327 | sadb_comb->sadb_comb_hard_allocations = ipsec_exp_allocations; |
2328 | |
2329 | sadb_comb->sadb_comb_soft_bytes = ipsec_soft_bytes; |
2330 | sadb_comb->sadb_comb_hard_bytes = ipsec_exp_bytes; |
2331 | |
2332 | sadb_comb->sadb_comb_soft_addtime = ipsec_soft_timeout; |
2333 | sadb_comb->sadb_comb_hard_addtime = ipsec_exp_timeout; |
2334 | |
2335 | sadb_comb->sadb_comb_soft_usetime = ipsec_soft_first_use; |
2336 | sadb_comb->sadb_comb_hard_usetime = ipsec_exp_first_use; |
2337 | #endif |
2338 | sadb_comb++; |
2339 | } |
2340 | |
2341 | /* Send the ACQUIRE message to all compliant registered listeners. */ |
2342 | if ((rval = pfkeyv2_sendmessage(headers, |
2343 | PFKEYV2_SENDMESSAGE_REGISTERED2, NULL((void *)0), smsg->sadb_msg_satype, 0, |
2344 | ipo->ipo_rdomain)) != 0) |
2345 | goto ret; |
2346 | |
2347 | rval = 0; |
2348 | ret: |
2349 | if (buffer != NULL((void *)0)) { |
2350 | explicit_bzero(buffer, i); |
2351 | free(buffer, M_PFKEY74, i); |
2352 | } |
2353 | |
2354 | return (rval); |
2355 | } |
2356 | |
2357 | /* |
2358 | * Notify key management that an expiration went off. The second argument |
2359 | * specifies the type of expiration (soft or hard). |
2360 | */ |
2361 | int |
2362 | pfkeyv2_expire(struct tdb *tdb, u_int16_t type) |
2363 | { |
2364 | void *p, *headers[SADB_EXT_MAX40+1], *buffer = NULL((void *)0); |
2365 | struct sadb_msg *smsg; |
2366 | int rval = 0; |
2367 | int i; |
2368 | |
2369 | NET_ASSERT_LOCKED()do { int _s = rw_status(&netlock); if ((splassert_ctl > 0) && (_s != 0x0001UL && _s != 0x0002UL)) splassert_fail (0x0002UL, _s, __func__); } while (0); |
2370 | |
2371 | switch (tdb->tdb_sproto) { |
2372 | case IPPROTO_AH51: |
2373 | case IPPROTO_ESP50: |
2374 | case IPPROTO_IPIP4: |
2375 | case IPPROTO_IPCOMP108: |
2376 | #ifdef TCP_SIGNATURE1 |
2377 | case IPPROTO_TCP6: |
2378 | #endif /* TCP_SIGNATURE */ |
2379 | break; |
2380 | |
2381 | default: |
2382 | rval = EOPNOTSUPP45; |
2383 | goto ret; |
2384 | } |
2385 | |
2386 | i = sizeof(struct sadb_msg) + sizeof(struct sadb_sa) + |
2387 | 2 * sizeof(struct sadb_lifetime) + |
2388 | sizeof(struct sadb_address) + PADUP(tdb->tdb_src.sa.sa_len)(((tdb->tdb_src.sa.sa_len) + sizeof(uint64_t) - 1) & ~ (sizeof(uint64_t) - 1)) + |
2389 | sizeof(struct sadb_address) + PADUP(tdb->tdb_dst.sa.sa_len)(((tdb->tdb_dst.sa.sa_len) + sizeof(uint64_t) - 1) & ~ (sizeof(uint64_t) - 1)); |
2390 | |
2391 | if (!(p = malloc(i, M_PFKEY74, M_NOWAIT0x0002 | M_ZERO0x0008))) { |
2392 | rval = ENOMEM12; |
2393 | goto ret; |
2394 | } |
2395 | |
2396 | bzero(headers, sizeof(headers))__builtin_bzero((headers), (sizeof(headers))); |
2397 | |
2398 | buffer = p; |
2399 | |
2400 | headers[0] = p; |
2401 | p += sizeof(struct sadb_msg); |
2402 | |
2403 | smsg = (struct sadb_msg *) headers[0]; |
2404 | smsg->sadb_msg_version = PF_KEY_V22; |
2405 | smsg->sadb_msg_type = SADB_EXPIRE8; |
2406 | smsg->sadb_msg_satype = tdb->tdb_satype; |
2407 | smsg->sadb_msg_len = i / sizeof(uint64_t); |
2408 | |
2409 | mtx_enter(&pfkeyv2_mtx); |
2410 | smsg->sadb_msg_seq = pfkeyv2_seq++; |
2411 | mtx_leave(&pfkeyv2_mtx); |
2412 | |
2413 | headers[SADB_EXT_SA1] = p; |
2414 | export_sa(&p, tdb); |
2415 | |
2416 | headers[SADB_EXT_LIFETIME_CURRENT2] = p; |
2417 | export_lifetime(&p, tdb, PFKEYV2_LIFETIME_CURRENT2); |
2418 | |
2419 | headers[type] = p; |
2420 | export_lifetime(&p, tdb, type == SADB_EXT_LIFETIME_SOFT4 ? |
2421 | PFKEYV2_LIFETIME_SOFT1 : PFKEYV2_LIFETIME_HARD0); |
2422 | |
2423 | headers[SADB_EXT_ADDRESS_SRC5] = p; |
2424 | export_address(&p, &tdb->tdb_src.sa); |
2425 | |
2426 | headers[SADB_EXT_ADDRESS_DST6] = p; |
2427 | export_address(&p, &tdb->tdb_dst.sa); |
2428 | |
2429 | if ((rval = pfkeyv2_sendmessage(headers, PFKEYV2_SENDMESSAGE_BROADCAST3, |
2430 | NULL((void *)0), 0, 0, tdb->tdb_rdomain)) != 0) |
2431 | goto ret; |
2432 | /* XXX */ |
2433 | if (tdb->tdb_rdomain != tdb->tdb_rdomain_post) |
2434 | if ((rval = pfkeyv2_sendmessage(headers, |
2435 | PFKEYV2_SENDMESSAGE_BROADCAST3, NULL((void *)0), 0, 0, |
2436 | tdb->tdb_rdomain_post)) != 0) |
2437 | goto ret; |
2438 | |
2439 | rval = 0; |
2440 | |
2441 | ret: |
2442 | if (buffer != NULL((void *)0)) { |
2443 | explicit_bzero(buffer, i); |
2444 | free(buffer, M_PFKEY74, i); |
2445 | } |
2446 | |
2447 | return (rval); |
2448 | } |
2449 | |
2450 | struct pfkeyv2_sysctl_walk { |
2451 | void *w_where; |
2452 | size_t w_len; |
2453 | int w_op; |
2454 | u_int8_t w_satype; |
2455 | }; |
2456 | |
2457 | int |
2458 | pfkeyv2_sysctl_walker(struct tdb *tdb, void *arg, int last) |
2459 | { |
2460 | struct pfkeyv2_sysctl_walk *w = (struct pfkeyv2_sysctl_walk *)arg; |
2461 | void *buffer = NULL((void *)0); |
2462 | int error = 0; |
2463 | int usedlen, buflen, i; |
2464 | |
2465 | if (w->w_satype != SADB_SATYPE_UNSPEC0 && |
2466 | w->w_satype != tdb->tdb_satype) |
2467 | return (0); |
2468 | |
2469 | if (w->w_where) { |
2470 | void *headers[SADB_EXT_MAX40+1]; |
2471 | struct sadb_msg msg; |
2472 | |
2473 | bzero(headers, sizeof(headers))__builtin_bzero((headers), (sizeof(headers))); |
2474 | if ((error = pfkeyv2_get(tdb, headers, &buffer, &buflen, |
2475 | &usedlen)) != 0) |
2476 | goto done; |
2477 | if (w->w_len < sizeof(msg) + usedlen) { |
2478 | error = ENOMEM12; |
2479 | goto done; |
2480 | } |
2481 | /* prepend header */ |
2482 | bzero(&msg, sizeof(msg))__builtin_bzero((&msg), (sizeof(msg))); |
2483 | msg.sadb_msg_version = PF_KEY_V22; |
2484 | msg.sadb_msg_satype = tdb->tdb_satype; |
2485 | msg.sadb_msg_type = SADB_DUMP10; |
2486 | msg.sadb_msg_len = (sizeof(msg) + usedlen) / sizeof(uint64_t); |
2487 | if ((error = copyout(&msg, w->w_where, sizeof(msg))) != 0) |
2488 | goto done; |
2489 | w->w_where += sizeof(msg); |
2490 | w->w_len -= sizeof(msg); |
2491 | /* set extension type */ |
2492 | for (i = 1; i <= SADB_EXT_MAX40; i++) |
2493 | if (headers[i]) |
2494 | ((struct sadb_ext *) |
2495 | headers[i])->sadb_ext_type = i; |
2496 | if ((error = copyout(buffer, w->w_where, usedlen)) != 0) |
2497 | goto done; |
2498 | w->w_where += usedlen; |
2499 | w->w_len -= usedlen; |
2500 | } else { |
2501 | if ((error = pfkeyv2_get(tdb, NULL((void *)0), NULL((void *)0), &buflen, NULL((void *)0))) != 0) |
2502 | return (error); |
2503 | w->w_len += buflen; |
2504 | w->w_len += sizeof(struct sadb_msg); |
2505 | } |
2506 | |
2507 | done: |
2508 | if (buffer != NULL((void *)0)) { |
2509 | explicit_bzero(buffer, buflen); |
2510 | free(buffer, M_PFKEY74, buflen); |
2511 | } |
2512 | return (error); |
2513 | } |
2514 | |
2515 | int |
2516 | pfkeyv2_dump_policy(struct ipsec_policy *ipo, void **headers, void **buffer, |
2517 | int *lenp) |
2518 | { |
2519 | int i, rval, perm; |
2520 | void *p; |
2521 | |
2522 | /* Find how much space we need. */ |
2523 | i = 2 * sizeof(struct sadb_protocol); |
2524 | |
2525 | /* We'll need four of them: src, src mask, dst, dst mask. */ |
2526 | switch (ipo->ipo_addr.sen_type) { |
2527 | case SENT_IP40x0001: |
2528 | i += 4 * PADUP(sizeof(struct sockaddr_in))(((sizeof(struct sockaddr_in)) + sizeof(uint64_t) - 1) & ~ (sizeof(uint64_t) - 1)); |
2529 | i += 4 * sizeof(struct sadb_address); |
2530 | break; |
2531 | #ifdef INET61 |
2532 | case SENT_IP60x0002: |
2533 | i += 4 * PADUP(sizeof(struct sockaddr_in6))(((sizeof(struct sockaddr_in6)) + sizeof(uint64_t) - 1) & ~(sizeof(uint64_t) - 1)); |
2534 | i += 4 * sizeof(struct sadb_address); |
2535 | break; |
2536 | #endif /* INET6 */ |
2537 | default: |
2538 | return (EINVAL22); |
2539 | } |
2540 | |
2541 | /* Local address, might be zeroed. */ |
2542 | switch (ipo->ipo_src.sa.sa_family) { |
2543 | case 0: |
2544 | break; |
2545 | case AF_INET2: |
2546 | i += PADUP(sizeof(struct sockaddr_in))(((sizeof(struct sockaddr_in)) + sizeof(uint64_t) - 1) & ~ (sizeof(uint64_t) - 1)); |
2547 | i += sizeof(struct sadb_address); |
2548 | break; |
2549 | #ifdef INET61 |
2550 | case AF_INET624: |
2551 | i += PADUP(sizeof(struct sockaddr_in6))(((sizeof(struct sockaddr_in6)) + sizeof(uint64_t) - 1) & ~(sizeof(uint64_t) - 1)); |
2552 | i += sizeof(struct sadb_address); |
2553 | break; |
2554 | #endif /* INET6 */ |
2555 | default: |
2556 | return (EINVAL22); |
2557 | } |
2558 | |
2559 | /* Remote address, might be zeroed. XXX ??? */ |
2560 | switch (ipo->ipo_dst.sa.sa_family) { |
2561 | case 0: |
2562 | break; |
2563 | case AF_INET2: |
2564 | i += PADUP(sizeof(struct sockaddr_in))(((sizeof(struct sockaddr_in)) + sizeof(uint64_t) - 1) & ~ (sizeof(uint64_t) - 1)); |
2565 | i += sizeof(struct sadb_address); |
2566 | break; |
2567 | #ifdef INET61 |
2568 | case AF_INET624: |
2569 | i += PADUP(sizeof(struct sockaddr_in6))(((sizeof(struct sockaddr_in6)) + sizeof(uint64_t) - 1) & ~(sizeof(uint64_t) - 1)); |
2570 | i += sizeof(struct sadb_address); |
2571 | break; |
2572 | #endif /* INET6 */ |
2573 | default: |
2574 | return (EINVAL22); |
2575 | } |
2576 | |
2577 | if (ipo->ipo_ids) { |
2578 | i += sizeof(struct sadb_ident) + PADUP(ipo->ipo_ids->id_local->len)(((ipo->ipo_ids->id_local->len) + sizeof(uint64_t) - 1) & ~(sizeof(uint64_t) - 1)); |
2579 | i += sizeof(struct sadb_ident) + PADUP(ipo->ipo_ids->id_remote->len)(((ipo->ipo_ids->id_remote->len) + sizeof(uint64_t) - 1) & ~(sizeof(uint64_t) - 1)); |
2580 | } |
2581 | |
2582 | if (lenp) |
2583 | *lenp = i; |
2584 | |
2585 | if (buffer == NULL((void *)0)) { |
2586 | rval = 0; |
2587 | goto ret; |
2588 | } |
2589 | |
2590 | if (!(p = malloc(i, M_PFKEY74, M_NOWAIT0x0002 | M_ZERO0x0008))) { |
2591 | rval = ENOMEM12; |
2592 | goto ret; |
2593 | } else |
2594 | *buffer = p; |
2595 | |
2596 | /* Local address. */ |
2597 | if (ipo->ipo_src.sa.sa_family) { |
2598 | headers[SADB_EXT_ADDRESS_SRC5] = p; |
2599 | export_address(&p, &ipo->ipo_src.sa); |
2600 | } |
2601 | |
2602 | /* Remote address. */ |
2603 | if (ipo->ipo_dst.sa.sa_family) { |
2604 | headers[SADB_EXT_ADDRESS_DST6] = p; |
2605 | export_address(&p, &ipo->ipo_dst.sa); |
2606 | } |
2607 | |
2608 | /* Get actual flow. */ |
2609 | export_flow(&p, ipo->ipo_type, &ipo->ipo_addr, &ipo->ipo_mask, |
2610 | headers); |
2611 | |
2612 | /* Add ids only when we are root. */ |
2613 | perm = suser(curproc({struct cpu_info *__ci; asm volatile("movq %%gs:%P1,%0" : "=r" (__ci) :"n" (__builtin_offsetof(struct cpu_info, ci_self))); __ci;})->ci_curproc); |
2614 | if (perm == 0 && ipo->ipo_ids) |
2615 | export_identities(&p, ipo->ipo_ids, 0, headers); |
2616 | |
2617 | rval = 0; |
2618 | ret: |
2619 | return (rval); |
2620 | } |
2621 | |
2622 | int |
2623 | pfkeyv2_sysctl_policydumper(struct ipsec_policy *ipo, void *arg, |
2624 | unsigned int tableid) |
2625 | { |
2626 | struct pfkeyv2_sysctl_walk *w = (struct pfkeyv2_sysctl_walk *)arg; |
2627 | void *buffer = NULL((void *)0); |
2628 | int i, buflen, error = 0; |
2629 | |
2630 | if (w->w_where) { |
2631 | void *headers[SADB_EXT_MAX40 + 1]; |
2632 | struct sadb_msg msg; |
2633 | |
2634 | bzero(headers, sizeof(headers))__builtin_bzero((headers), (sizeof(headers))); |
2635 | if ((error = pfkeyv2_dump_policy(ipo, headers, &buffer, |
2636 | &buflen)) != 0) |
2637 | goto done; |
2638 | if (w->w_len < buflen) { |
2639 | error = ENOMEM12; |
2640 | goto done; |
2641 | } |
2642 | /* prepend header */ |
2643 | bzero(&msg, sizeof(msg))__builtin_bzero((&msg), (sizeof(msg))); |
2644 | msg.sadb_msg_version = PF_KEY_V22; |
2645 | if (ipo->ipo_sproto == IPPROTO_ESP50) |
2646 | msg.sadb_msg_satype = SADB_SATYPE_ESP2; |
2647 | else if (ipo->ipo_sproto == IPPROTO_AH51) |
2648 | msg.sadb_msg_satype = SADB_SATYPE_AH1; |
2649 | else if (ipo->ipo_sproto == IPPROTO_IPCOMP108) |
2650 | msg.sadb_msg_satype = SADB_X_SATYPE_IPCOMP9; |
2651 | else if (ipo->ipo_sproto == IPPROTO_IPIP4) |
2652 | msg.sadb_msg_satype = SADB_X_SATYPE_IPIP7; |
2653 | msg.sadb_msg_type = SADB_X_SPDDUMP16; |
2654 | msg.sadb_msg_len = (sizeof(msg) + buflen) / sizeof(uint64_t); |
2655 | if ((error = copyout(&msg, w->w_where, sizeof(msg))) != 0) |
2656 | goto done; |
2657 | w->w_where += sizeof(msg); |
2658 | w->w_len -= sizeof(msg); |
2659 | /* set extension type */ |
2660 | for (i = 1; i <= SADB_EXT_MAX40; i++) |
2661 | if (headers[i]) |
2662 | ((struct sadb_ext *) |
2663 | headers[i])->sadb_ext_type = i; |
2664 | if ((error = copyout(buffer, w->w_where, buflen)) != 0) |
2665 | goto done; |
2666 | w->w_where += buflen; |
2667 | w->w_len -= buflen; |
2668 | } else { |
2669 | if ((error = pfkeyv2_dump_policy(ipo, NULL((void *)0), NULL((void *)0), |
2670 | &buflen)) != 0) |
2671 | goto done; |
2672 | w->w_len += buflen; |
2673 | w->w_len += sizeof(struct sadb_msg); |
2674 | } |
2675 | |
2676 | done: |
2677 | if (buffer) |
2678 | free(buffer, M_PFKEY74, buflen); |
2679 | return (error); |
2680 | } |
2681 | |
2682 | int |
2683 | pfkeyv2_policy_flush(struct ipsec_policy *ipo, void *arg, unsigned int tableid) |
2684 | { |
2685 | int error; |
2686 | |
2687 | error = ipsec_delete_policy(ipo); |
2688 | if (error == 0) |
2689 | error = EAGAIN35; |
2690 | |
2691 | return (error); |
2692 | } |
2693 | |
2694 | int |
2695 | pfkeyv2_sysctl(int *name, u_int namelen, void *oldp, size_t *oldlenp, |
2696 | void *new, size_t newlen) |
2697 | { |
2698 | struct pfkeyv2_sysctl_walk w; |
2699 | int error = EINVAL22; |
2700 | u_int rdomain; |
2701 | u_int tableid; |
2702 | |
2703 | if (new) |
2704 | return (EPERM1); |
2705 | if (namelen < 1) |
2706 | return (EINVAL22); |
2707 | w.w_op = name[0]; |
2708 | w.w_satype = name[1]; |
2709 | w.w_where = oldp; |
2710 | w.w_len = oldp ? *oldlenp : 0; |
2711 | |
2712 | if (namelen == 3) { |
2713 | tableid = name[2]; |
2714 | if (!rtable_exists(tableid)) |
2715 | return (ENOENT2); |
2716 | } else |
2717 | tableid = curproc({struct cpu_info *__ci; asm volatile("movq %%gs:%P1,%0" : "=r" (__ci) :"n" (__builtin_offsetof(struct cpu_info, ci_self))); __ci;})->ci_curproc->p_p->ps_rtableid; |
2718 | rdomain = rtable_l2(tableid); |
2719 | |
2720 | switch(w.w_op) { |
2721 | case NET_KEY_SADB_DUMP1: |
2722 | if ((error = suser(curproc({struct cpu_info *__ci; asm volatile("movq %%gs:%P1,%0" : "=r" (__ci) :"n" (__builtin_offsetof(struct cpu_info, ci_self))); __ci;})->ci_curproc)) != 0) |
2723 | return (error); |
2724 | NET_LOCK()do { rw_enter_write(&netlock); } while (0); |
2725 | error = tdb_walk(rdomain, pfkeyv2_sysctl_walker, &w); |
2726 | NET_UNLOCK()do { rw_exit_write(&netlock); } while (0); |
2727 | if (oldp) |
2728 | *oldlenp = w.w_where - oldp; |
2729 | else |
2730 | *oldlenp = w.w_len; |
2731 | break; |
2732 | |
2733 | case NET_KEY_SPD_DUMP2: |
2734 | NET_LOCK_SHARED()do { rw_enter_read(&netlock); } while (0); |
2735 | error = spd_table_walk(rdomain, |
2736 | pfkeyv2_sysctl_policydumper, &w); |
2737 | NET_UNLOCK_SHARED()do { rw_exit_read(&netlock); } while (0); |
2738 | if (oldp) |
2739 | *oldlenp = w.w_where - oldp; |
2740 | else |
2741 | *oldlenp = w.w_len; |
2742 | break; |
2743 | } |
2744 | |
2745 | return (error); |
2746 | } |