/usr/src/sbin/isakmpd/pf_key

Bug Summary

File:	src/sbin/isakmpd/pf_key_v2.c
Warning:	line 2360, column 3 Value stored to 'scmb' is never read

Annotated Source Code

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clang -cc1 -cc1 -triple amd64-unknown-openbsd7.0 -analyze -disable-free -disable-llvm-verifier -discard-value-names -main-file-name pf_key_v2.c -analyzer-store=region -analyzer-opt-analyze-nested-blocks -analyzer-checker=core -analyzer-checker=apiModeling -analyzer-checker=unix -analyzer-checker=deadcode -analyzer-checker=security.insecureAPI.UncheckedReturn -analyzer-checker=security.insecureAPI.getpw -analyzer-checker=security.insecureAPI.gets -analyzer-checker=security.insecureAPI.mktemp -analyzer-checker=security.insecureAPI.mkstemp -analyzer-checker=security.insecureAPI.vfork -analyzer-checker=nullability.NullPassedToNonnull -analyzer-checker=nullability.NullReturnedFromNonnull -analyzer-output plist -w -setup-static-analyzer -mrelocation-model pic -pic-level 1 -pic-is-pie -mframe-pointer=all -relaxed-aliasing -fno-rounding-math -mconstructor-aliases -munwind-tables -target-cpu x86-64 -target-feature +retpoline-indirect-calls -target-feature +retpoline-indirect-branches -tune-cpu generic -debugger-tuning=gdb -fcoverage-compilation-dir=/usr/src/sbin/isakmpd/obj -resource-dir /usr/local/lib/clang/13.0.0 -I /usr/src/sbin/isakmpd -I . -internal-isystem /usr/local/lib/clang/13.0.0/include -internal-externc-isystem /usr/include -O2 -fdebug-compilation-dir=/usr/src/sbin/isakmpd/obj -ferror-limit 19 -fwrapv -D_RET_PROTECTOR -ret-protector -fgnuc-version=4.2.1 -vectorize-loops -vectorize-slp -fno-builtin-malloc -fno-builtin-calloc -fno-builtin-realloc -fno-builtin-valloc -fno-builtin-free -fno-builtin-strdup -fno-builtin-strndup -analyzer-output=html -faddrsig -D__GCC_HAVE_DWARF2_CFI_ASM=1 -o /home/ben/Projects/vmm/scan-build/2022-01-12-194120-40624-1 -x c /usr/src/sbin/isakmpd/pf_key_v2.c

1	/* $OpenBSD: pf_key_v2.c,v 1.202 2021/10/22 12:30:54 bluhm Exp $ */
2	/* $EOM: pf_key_v2.c,v 1.79 2000/12/12 00:33:19 niklas Exp $ */
3
4	/*
5	* Copyright (c) 1999, 2000, 2001 Niklas Hallqvist. All rights reserved.
6	* Copyright (c) 1999, 2000, 2001 Angelos D. Keromytis. All rights reserved.
7	* Copyright (c) 2001 Håkan Olsson. All rights reserved.
8	*
9	* Redistribution and use in source and binary forms, with or without
10	* modification, are permitted provided that the following conditions
11	* are met:
12	* 1. Redistributions of source code must retain the above copyright
13	* notice, this list of conditions and the following disclaimer.
14	* 2. Redistributions in binary form must reproduce the above copyright
15	* notice, this list of conditions and the following disclaimer in the
16	* documentation and/or other materials provided with the distribution.
17	*
18	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
19	* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
20	* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
21	* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
22	* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
23	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
27	* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28	*/
29
30	/*
31	* This code was written under funding by Ericsson Radio Systems.
32	*/
33
34	#include <sys/types.h>
35	#include <sys/ioctl.h>
36	#include <sys/queue.h>
37	#include <sys/socket.h>
38	#include <sys/uio.h>
39
40	#include <net/pfkeyv2.h>
41	#include <netinet/in.h>
42	#include <netinet/ip_ipsp.h>
43	#include <arpa/inet.h>
44	#include <stdlib.h>
45	#include <poll.h>
46	#include <string.h>
47	#include <unistd.h>
48	#include <pwd.h>
49	#include <errno(*__errno()).h>
50	#include <bitstring.h>
51
52	#include "cert.h"
53	#include "conf.h"
54	#include "connection.h"
55	#include "exchange.h"
56	#include "ipsec.h"
57	#include "ipsec_num.h"
58	#include "key.h"
59	#include "log.h"
60	#include "pf_key_v2.h"
61	#include "sa.h"
62	#include "timer.h"
63	#include "transport.h"
64	#include "ui.h"
65	#include "util.h"
66
67	#include "policy.h"
68
69	#include "udp_encap.h"
70
71	#define IN6_IS_ADDR_FULL(a)(((u_int32_t )(void )(&(a)->__u6_addr.__u6_addr8[0] ) == 0xffffffff) && ((u_int32_t )(void )(&(a)-> __u6_addr.__u6_addr8[4]) == 0xffffffff) && ((u_int32_t )(void )(&(a)->__u6_addr.__u6_addr8[8]) == 0xffffffff ) && ((u_int32_t )(void )(&(a)->__u6_addr.__u6_addr8 [12]) == 0xffffffff)) \
72	(((u_int32_t )(void *)(&(a)->s6_addr__u6_addr.__u6_addr8[0]) == 0xffffffff) && \
73	((u_int32_t )(void *)(&(a)->s6_addr__u6_addr.__u6_addr8[4]) == 0xffffffff) && \
74	((u_int32_t )(void *)(&(a)->s6_addr__u6_addr.__u6_addr8[8]) == 0xffffffff) && \
75	((u_int32_t )(void *)(&(a)->s6_addr__u6_addr.__u6_addr8[12]) == 0xffffffff))
76
77	#define ADDRESS_MAXsizeof "ffff:ffff:ffff:ffff:ffff:ffff:255.255.255.255" sizeof "ffff:ffff:ffff:ffff:ffff:ffff:255.255.255.255"
78
79	/*
80	* PF_KEY v2 always work with 64-bit entities and aligns on 64-bit boundaries.
81	*/
82	#define PF_KEY_V2_CHUNK8 8
83	#define PF_KEY_V2_ROUND(x)(((x) + 8 - 1) & ~(8 - 1)) \
84	(((x) + PF_KEY_V2_CHUNK8 - 1) & ~(PF_KEY_V2_CHUNK8 - 1))
85
86	/* How many microseconds we will wait for a reply from the PF_KEY socket. */
87	#define PF_KEY_REPLY_TIMEOUT1000 1000
88
89	struct pf_key_v2_node {
90	TAILQ_ENTRY(pf_key_v2_node)struct { struct pf_key_v2_node tqe_next; struct pf_key_v2_node *tqe_prev; } link;
91	void *seg;
92	size_t sz;
93	int cnt;
94	u_int16_t type;
95	u_int8_t flags;
96	};
97
98	TAILQ_HEAD(pf_key_v2_msg, pf_key_v2_node)struct pf_key_v2_msg { struct pf_key_v2_node tqh_first; struct pf_key_v2_node *tqh_last; };
99
100	#define PF_KEY_V2_NODE_MALLOCED1 1
101	#define PF_KEY_V2_NODE_MARK2 2
102
103	/* Used to derive "unique" connection identifiers. */
104	int connection_seq = 0;
105
106	static u_int8_t pf_key_v2_convert_id(u_int8_t , int, size_t , int );
107	static struct pf_key_v2_msg pf_key_v2_call(struct pf_key_v2_msg );
108	static struct pf_key_v2_node pf_key_v2_find_ext(struct pf_key_v2_msg ,
109	u_int16_t);
110	static void pf_key_v2_notify(struct pf_key_v2_msg *);
111	static struct pf_key_v2_msg *pf_key_v2_read(u_int32_t);
112	static u_int32_t pf_key_v2_seq(void);
113	static u_int32_t pf_key_v2_write(struct pf_key_v2_msg *);
114	static int pf_key_v2_remove_conf(char *);
115	static int pf_key_v2_conf_refhandle(int, char *);
116
117	static int pf_key_v2_conf_refinc(int, char *);
118
119	/* The socket to use for PF_KEY interactions. */
120	int pf_key_v2_socket;
121
122	static struct pf_key_v2_msg *
123	pf_key_v2_msg_new(struct sadb_msg *msg, int flags)
124	{
125	struct pf_key_v2_node *node;
126	struct pf_key_v2_msg *ret;
127
128	node = malloc(sizeof *node);
129	if (!node)
130	goto cleanup;
131	ret = malloc(sizeof *ret);
132	if (!ret)
133	goto cleanup;
134	TAILQ_INIT(ret)do { (ret)->tqh_first = ((void *)0); (ret)->tqh_last = & (ret)->tqh_first; } while (0);
135	node->seg = msg;
136	node->sz = sizeof *msg;
137	node->type = 0;
138	node->cnt = 1;
139	node->flags = flags;
140	TAILQ_INSERT_HEAD(ret, node, link)do { if (((node)->link.tqe_next = (ret)->tqh_first) != ( (void *)0)) (ret)->tqh_first->link.tqe_prev = &(node )->link.tqe_next; else (ret)->tqh_last = &(node)-> link.tqe_next; (ret)->tqh_first = (node); (node)->link. tqe_prev = &(ret)->tqh_first; } while (0);
141	return ret;
142
143	cleanup:
144	free(node);
145	return 0;
146	}
147
148	/* Add a SZ sized segment SEG to the PF_KEY message MSG. */
149	static int
150	pf_key_v2_msg_add(struct pf_key_v2_msg msg, struct sadb_ext ext, int flags)
151	{
152	struct pf_key_v2_node *node;
153
154	node = malloc(sizeof *node);
155	if (!node)
156	return -1;
157	node->seg = ext;
158	node->sz = ext->sadb_ext_len * PF_KEY_V2_CHUNK8;
159	node->type = ext->sadb_ext_type;
160	node->flags = flags;
161	TAILQ_FIRST(msg)((msg)->tqh_first)->cnt++;
162	TAILQ_INSERT_TAIL(msg, node, link)do { (node)->link.tqe_next = ((void )0); (node)->link. tqe_prev = (msg)->tqh_last; (msg)->tqh_last = (node); ( msg)->tqh_last = &(node)->link.tqe_next; } while (0 );
163	return 0;
164	}
165
166	/* Deallocate the PF_KEY message MSG. */
167	static void
168	pf_key_v2_msg_free(struct pf_key_v2_msg *msg)
169	{
170	struct pf_key_v2_node *np;
171
172	np = TAILQ_FIRST(msg)((msg)->tqh_first);
173	while (np) {
174	TAILQ_REMOVE(msg, np, link)do { if (((np)->link.tqe_next) != ((void )0)) (np)->link .tqe_next->link.tqe_prev = (np)->link.tqe_prev; else (msg )->tqh_last = (np)->link.tqe_prev; (np)->link.tqe_prev = (np)->link.tqe_next; ; ; } while (0);
175	if (np->flags & PF_KEY_V2_NODE_MALLOCED1)
176	free(np->seg);
177	free(np);
178	np = TAILQ_FIRST(msg)((msg)->tqh_first);
179	}
180	free(msg);
181	}
182
183	/* Just return a new sequence number. */
184	static u_int32_t
185	pf_key_v2_seq(void)
186	{
187	static u_int32_t seq = 0;
188
189	return ++seq;
190	}
191
192	/*
193	* Read a PF_KEY packet with SEQ as the sequence number, looping if necessary.
194	* If SEQ is zero just read the first message we see, otherwise we queue
195	* messages up until both the PID and the sequence number match.
196	*/
197	static struct pf_key_v2_msg *
198	pf_key_v2_read(u_int32_t seq)
199	{
200	ssize_t n;
201	u_int8_t *buf = 0;
202	struct pf_key_v2_msg *ret = 0;
203	struct sadb_msg *msg;
204	struct sadb_msg hdr;
205	struct sadb_ext *ext;
206	struct timespec ts;
207	struct pollfd pfd[1];
208
209	pfd[0].fd = pf_key_v2_socket;
210	pfd[0].events = POLLIN0x0001;
211
212	while (1) {
213	/*
214	* If this is a read of a reply we should actually expect the
215	* reply to get lost as PF_KEY is an unreliable service per
216	* the specs. Currently we do this by setting a short timeout,
217	* and if it is not readable in that time, we fail the read.
218	*/
219	if (seq) {
220	n = poll(pfd, 1, PF_KEY_REPLY_TIMEOUT1000 / 1000);
221	if (n == -1) {
222	log_error("pf_key_v2_read: poll() failed");
223	goto cleanup;
224	}
225	if (!n) {
226	log_print("pf_key_v2_read: "
227	"no reply from PF_KEY");
228	goto cleanup;
229	}
230	}
231	n = recv(pf_key_v2_socket, &hdr, sizeof hdr, MSG_PEEK0x2);
232	if (n == -1) {
233	log_error("pf_key_v2_read: recv (%d, ...) failed",
234	pf_key_v2_socket);
235	goto cleanup;
236	}
237	if (n != sizeof hdr) {
238	log_error("pf_key_v2_read: recv (%d, ...) "
239	"returned short packet (%lu bytes)",
240	pf_key_v2_socket, (unsigned long) n);
241	goto cleanup;
242	}
243	buf = reallocarray(NULL((void *)0), hdr.sadb_msg_len, PF_KEY_V2_CHUNK8);
244	if (!buf) {
245	log_error("pf_key_v2_read: reallocarray (%d, %d) failed",
246	hdr.sadb_msg_len, PF_KEY_V2_CHUNK8);
247	goto cleanup;
248	}
249	n = hdr.sadb_msg_len * PF_KEY_V2_CHUNK8;
250
251	n = read(pf_key_v2_socket, buf, n);
252	if (n == -1) {
253	log_error("pf_key_v2_read: read (%d, ...) failed",
254	pf_key_v2_socket);
255	goto cleanup;
256	}
257	if (n != hdr.sadb_msg_len * PF_KEY_V2_CHUNK8) {
258	log_print("pf_key_v2_read: read (%d, ...) "
259	"returned short packet (%lu bytes)",
260	pf_key_v2_socket, (unsigned long) n);
261	goto cleanup;
262	}
263	LOG_DBG_BUF((LOG_SYSDEP, 80, "pf_key_v2_read: msg", buf, n))log_debug_buf (LOG_SYSDEP, 80, "pf_key_v2_read: msg", buf, n);
264
265	/* We drop all messages that is not what we expect. */
266	msg = (struct sadb_msg *) buf;
267	if (msg->sadb_msg_version != PF_KEY_V22 \|\|
268	(msg->sadb_msg_pid != 0 &&
269	msg->sadb_msg_pid != (u_int32_t) getpid())) {
270	if (seq) {
271	free(buf);
272	buf = 0;
273	continue;
274	} else {
275	LOG_DBG((LOG_SYSDEP, 90, "pf_key_v2_read:"log_debug (LOG_SYSDEP, 90, "pf_key_v2_read:" "bad version (%d) or PID (%d, mine is " "%ld), ignored", msg->sadb_msg_version, msg->sadb_msg_pid , (long) getpid())
276	"bad version (%d) or PID (%d, mine is "log_debug (LOG_SYSDEP, 90, "pf_key_v2_read:" "bad version (%d) or PID (%d, mine is " "%ld), ignored", msg->sadb_msg_version, msg->sadb_msg_pid , (long) getpid())
277	"%ld), ignored", msg->sadb_msg_version,log_debug (LOG_SYSDEP, 90, "pf_key_v2_read:" "bad version (%d) or PID (%d, mine is " "%ld), ignored", msg->sadb_msg_version, msg->sadb_msg_pid , (long) getpid())
278	msg->sadb_msg_pid, (long) getpid()))log_debug (LOG_SYSDEP, 90, "pf_key_v2_read:" "bad version (%d) or PID (%d, mine is " "%ld), ignored", msg->sadb_msg_version, msg->sadb_msg_pid , (long) getpid());
279	goto cleanup;
280	}
281	}
282	/* Parse the message. */
283	ret = pf_key_v2_msg_new(msg, PF_KEY_V2_NODE_MALLOCED1);
284	if (!ret)
285	goto cleanup;
286	buf = 0;
287	for (ext = (struct sadb_ext *) (msg + 1);
288	(u_int8_t ) ext - (u_int8_t ) msg <
289	msg->sadb_msg_len * PF_KEY_V2_CHUNK8;
290	ext = (struct sadb_ext ) ((u_int8_t ) ext +
291	ext->sadb_ext_len * PF_KEY_V2_CHUNK8))
292	pf_key_v2_msg_add(ret, ext, 0);
293
294	/*
295	* If the message is not the one we are waiting for, queue it
296	* up.
297	*/
298	if (seq && (msg->sadb_msg_pid != (u_int32_t) getpid() \|\|
299	msg->sadb_msg_seq != seq)) {
300	clock_gettime(CLOCK_MONOTONIC3, &ts);
301	timer_add_event("pf_key_v2_notify",
302	(void () (void )) pf_key_v2_notify, ret, &ts);
303	ret = 0;
304	continue;
305	}
306	return ret;
307	}
308
309	cleanup:
310	free(buf);
311	if (ret)
312	pf_key_v2_msg_free(ret);
313	return 0;
314	}
315
316	/* Write the message in PMSG to the PF_KEY socket. */
317	u_int32_t
318	pf_key_v2_write(struct pf_key_v2_msg *pmsg)
319	{
320	struct iovec *iov = 0;
321	ssize_t n;
322	size_t len;
323	int i, cnt = TAILQ_FIRST(pmsg)((pmsg)->tqh_first)->cnt;
324	char header[80];
325	struct sadb_msg *msg = TAILQ_FIRST(pmsg)((pmsg)->tqh_first)->seg;
326	struct pf_key_v2_node *np = TAILQ_FIRST(pmsg)((pmsg)->tqh_first);
327
328	iov = calloc(cnt, sizeof *iov);
329	if (!iov) {
330	log_error("pf_key_v2_write: malloc (%lu) failed",
331	cnt * (unsigned long) sizeof *iov);
332	return 0;
333	}
334	msg->sadb_msg_version = PF_KEY_V22;
335	msg->sadb_msg_errno = 0;
336	msg->sadb_msg_reserved = 0;
337	msg->sadb_msg_pid = getpid();
338	if (!msg->sadb_msg_seq)
339	msg->sadb_msg_seq = pf_key_v2_seq();
340
341	/* Compute the iovec segments as well as the message length. */
342	len = 0;
343	for (i = 0; i < cnt; i++) {
344	iov[i].iov_base = np->seg;
345	len += iov[i].iov_len = np->sz;
346
347	/*
348	* XXX One can envision setting specific extension fields,
349	* like *_reserved ones here. For now we require them to be
350	* set by the caller.
351	*/
352
353	np = TAILQ_NEXT(np, link)((np)->link.tqe_next);
354	}
355	msg->sadb_msg_len = len / PF_KEY_V2_CHUNK8;
356
357	for (i = 0; i < cnt; i++) {
358	snprintf(header, sizeof header, "pf_key_v2_write: iov[%d]", i);
359	LOG_DBG_BUF((LOG_SYSDEP, 80, header,log_debug_buf (LOG_SYSDEP, 80, header, (u_int8_t *) iov[i].iov_base , iov[i].iov_len)
360	(u_int8_t ) iov[i].iov_base, iov[i].iov_len))log_debug_buf (LOG_SYSDEP, 80, header, (u_int8_t ) iov[i].iov_base , iov[i].iov_len);
361	}
362
363	do {
364	n = writev(pf_key_v2_socket, iov, cnt);
365	} while (n == -1 && (errno(__errno()) == EAGAIN35 \|\| errno(__errno()) == EINTR4));
366	if (n == -1) {
367	log_error("pf_key_v2_write: writev (%d, %p, %d) failed",
368	pf_key_v2_socket, iov, cnt);
369	goto cleanup;
370	}
371	if ((size_t) n != len) {
372	log_error("pf_key_v2_write: "
373	"writev (%d, ...) returned prematurely (%lu)",
374	pf_key_v2_socket, (unsigned long) n);
375	goto cleanup;
376	}
377	free(iov);
378	return msg->sadb_msg_seq;
379
380	cleanup:
381	free(iov);
382	return 0;
383	}
384
385	/*
386	* Do a PF_KEY "call", i.e. write a message MSG, read the reply and return
387	* it to the caller.
388	*/
389	static struct pf_key_v2_msg *
390	pf_key_v2_call(struct pf_key_v2_msg *msg)
391	{
392	u_int32_t seq;
393
394	seq = pf_key_v2_write(msg);
395	if (!seq)
396	return 0;
397	return pf_key_v2_read(seq);
398	}
399
400	/* Find the TYPE extension in MSG. Return zero if none found. */
401	static struct pf_key_v2_node *
402	pf_key_v2_find_ext(struct pf_key_v2_msg *msg, u_int16_t type)
403	{
404	struct pf_key_v2_node *ext;
405
406	for (ext = TAILQ_NEXT(TAILQ_FIRST(msg), link)((((msg)->tqh_first))->link.tqe_next); ext;
407	ext = TAILQ_NEXT(ext, link)((ext)->link.tqe_next))
408	if (ext->type == type)
409	return ext;
410	return 0;
411	}
412
413	/*
414	* Open the PF_KEYv2 sockets and return the descriptor used for notifies.
415	* Return -1 for failure and -2 if no notifies will show up.
416	*/
417	int
418	pf_key_v2_open(void)
419	{
420	int fd = -1, err;
421	struct sadb_msg msg;
422	struct pf_key_v2_msg regmsg = 0, ret = 0;
423
424	/* Open the socket we use to speak to IPsec. */
425	pf_key_v2_socket = -1;
426	fd = socket(PF_KEY30, SOCK_RAW3, PF_KEY_V22);
427	if (fd == -1) {
428	log_error("pf_key_v2_open: "
429	"socket (PF_KEY, SOCK_RAW, PF_KEY_V2) failed");
430	goto cleanup;
431	}
432	pf_key_v2_socket = fd;
433
434	/* Register it to get ESP and AH acquires from the kernel. */
435	msg.sadb_msg_seq = 0;
436	msg.sadb_msg_type = SADB_REGISTER7;
437	msg.sadb_msg_satype = SADB_SATYPE_ESP2;
438	regmsg = pf_key_v2_msg_new(&msg, 0);
439	if (!regmsg)
440	goto cleanup;
441	ret = pf_key_v2_call(regmsg);
442	pf_key_v2_msg_free(regmsg);
443	if (!ret)
444	goto cleanup;
445	err = ((struct sadb_msg *)TAILQ_FIRST(ret)((ret)->tqh_first)->seg)->sadb_msg_errno;
446	if (err) {
447	log_print("pf_key_v2_open: REGISTER: %s", strerror(err));
448	goto cleanup;
449	}
450	/* XXX Register the accepted transforms. */
451
452	pf_key_v2_msg_free(ret);
453	ret = 0;
454
455	msg.sadb_msg_seq = 0;
456	msg.sadb_msg_type = SADB_REGISTER7;
457	msg.sadb_msg_satype = SADB_SATYPE_AH1;
458	regmsg = pf_key_v2_msg_new(&msg, 0);
459	if (!regmsg)
460	goto cleanup;
461	ret = pf_key_v2_call(regmsg);
462	pf_key_v2_msg_free(regmsg);
463	if (!ret)
464	goto cleanup;
465	err = ((struct sadb_msg *)TAILQ_FIRST(ret)((ret)->tqh_first)->seg)->sadb_msg_errno;
466	if (err) {
467	log_print("pf_key_v2_open: REGISTER: %s", strerror(err));
468	goto cleanup;
469	}
470	/* XXX Register the accepted transforms. */
471
472	pf_key_v2_msg_free(ret);
473	ret = 0;
474
475	msg.sadb_msg_seq = 0;
476	msg.sadb_msg_type = SADB_REGISTER7;
477	msg.sadb_msg_satype = SADB_X_SATYPE_IPCOMP9;
478	regmsg = pf_key_v2_msg_new(&msg, 0);
479	if (!regmsg)
480	goto cleanup;
481	ret = pf_key_v2_call(regmsg);
482	pf_key_v2_msg_free(regmsg);
483	if (!ret)
484	goto cleanup;
485	err = ((struct sadb_msg *)TAILQ_FIRST(ret)((ret)->tqh_first)->seg)->sadb_msg_errno;
486	if (err) {
487	log_print("pf_key_v2_open: REGISTER: %s", strerror(err));
488	goto cleanup;
489	}
490	/* XXX Register the accepted transforms. */
491
492	pf_key_v2_msg_free(ret);
493
494	return fd;
495
496	cleanup:
497	if (pf_key_v2_socket != -1) {
498	close(pf_key_v2_socket);
499	pf_key_v2_socket = -1;
500	}
501	if (ret)
502	pf_key_v2_msg_free(ret);
503	return -1;
504	}
505
506	/*
507	* Generate a SPI for protocol PROTO and the source/destination pair given by
508	* SRC, SRCLEN, DST & DSTLEN. Stash the SPI size in SZ.
509	*/
510	u_int8_t *
511	pf_key_v2_get_spi(size_t sz, u_int8_t proto, struct sockaddr src,
512	struct sockaddr *dst, u_int32_t seq)
513	{
514	struct sadb_msg msg;
515	struct sadb_sa *sa;
516	struct sadb_address *addr = 0;
517	struct sadb_spirange spirange;
518	struct pf_key_v2_msg getspi = 0, ret = 0;
519	struct pf_key_v2_node *ext;
520	u_int8_t *spi = 0;
521	int len, err;
522
523	msg.sadb_msg_type = SADB_GETSPI1;
524	switch (proto) {
525	case IPSEC_PROTO_IPSEC_ESP3:
526	msg.sadb_msg_satype = SADB_SATYPE_ESP2;
527	break;
528	case IPSEC_PROTO_IPSEC_AH2:
529	msg.sadb_msg_satype = SADB_SATYPE_AH1;
530	break;
531	case IPSEC_PROTO_IPCOMP4:
532	msg.sadb_msg_satype = SADB_X_SATYPE_IPCOMP9;
533	break;
534	default:
535	log_print("pf_key_v2_get_spi: invalid proto %d", proto);
536	goto cleanup;
537	}
538
539	/* Set the sequence number from the ACQUIRE message. */
540	msg.sadb_msg_seq = seq;
541	getspi = pf_key_v2_msg_new(&msg, 0);
542	if (!getspi)
543	goto cleanup;
544
545	/* Setup the ADDRESS extensions. */
546	len =
547	sizeof(struct sadb_address) + PF_KEY_V2_ROUND(SA_LEN(src))(((((src)->sa_len)) + 8 - 1) & ~(8 - 1));
548	addr = calloc(1, len);
549	if (!addr)
550	goto cleanup;
551	addr->sadb_address_exttype = SADB_EXT_ADDRESS_SRC5;
552	addr->sadb_address_len = len / PF_KEY_V2_CHUNK8;
553	addr->sadb_address_reserved = 0;
554	memcpy(addr + 1, src, SA_LEN(src)((src)->sa_len));
555	switch (((struct sockaddr *) (addr + 1))->sa_family) {
556	case AF_INET2:
557	((struct sockaddr_in *) (addr + 1))->sin_port = 0;
558	break;
559	case AF_INET624:
560	((struct sockaddr_in6 *) (addr + 1))->sin6_port = 0;
561	break;
562	}
563	if (pf_key_v2_msg_add(getspi, (struct sadb_ext *) addr,
564	PF_KEY_V2_NODE_MALLOCED1) == -1)
565	goto cleanup;
566	addr = 0;
567
568	len = sizeof(struct sadb_address) + PF_KEY_V2_ROUND(SA_LEN(dst))(((((dst)->sa_len)) + 8 - 1) & ~(8 - 1));
569	addr = calloc(1, len);
570	if (!addr)
571	goto cleanup;
572	addr->sadb_address_exttype = SADB_EXT_ADDRESS_DST6;
573	addr->sadb_address_len = len / PF_KEY_V2_CHUNK8;
574	addr->sadb_address_reserved = 0;
575	memcpy(addr + 1, dst, SA_LEN(dst)((dst)->sa_len));
576	switch (((struct sockaddr *) (addr + 1))->sa_family) {
577	case AF_INET2:
578	((struct sockaddr_in *) (addr + 1))->sin_port = 0;
579	break;
580	case AF_INET624:
581	((struct sockaddr_in6 *) (addr + 1))->sin6_port = 0;
582	break;
583	}
584	if (pf_key_v2_msg_add(getspi, (struct sadb_ext *) addr,
585	PF_KEY_V2_NODE_MALLOCED1) == -1)
586	goto cleanup;
587	addr = 0;
588
589	/* Setup the SPIRANGE extension. */
590	spirange.sadb_spirange_exttype = SADB_EXT_SPIRANGE16;
591	spirange.sadb_spirange_len = sizeof spirange / PF_KEY_V2_CHUNK8;
592	if (proto == IPSEC_PROTO_IPCOMP4) {
593	spirange.sadb_spirange_min = CPI_RESERVED_MAX255 + 1;
594	spirange.sadb_spirange_max = CPI_PRIVATE_MIN61440 - 1;
595	} else {
596	spirange.sadb_spirange_min = IPSEC_SPI_LOW0x100;
597	spirange.sadb_spirange_max = 0xffffffff;
598	}
599	spirange.sadb_spirange_reserved = 0;
600	if (pf_key_v2_msg_add(getspi, (struct sadb_ext *)&spirange, 0) == -1)
601	goto cleanup;
602
603	ret = pf_key_v2_call(getspi);
604	pf_key_v2_msg_free(getspi);
605	getspi = 0;
606	if (!ret)
607	goto cleanup;
608	err = ((struct sadb_msg *)TAILQ_FIRST(ret)((ret)->tqh_first)->seg)->sadb_msg_errno;
609	if (err) {
610	log_print("pf_key_v2_get_spi: GETSPI: %s", strerror(err));
611	goto cleanup;
612	}
613	ext = pf_key_v2_find_ext(ret, SADB_EXT_SA1);
614	if (!ext) {
615	log_print("pf_key_v2_get_spi: no SA extension found");
616	goto cleanup;
617	}
618	sa = ext->seg;
619
620	/* IPCOMP CPIs are only 16 bits long. */
621	*sz = (proto == IPSEC_PROTO_IPCOMP4) ? sizeof(u_int16_t)
622	: sizeof sa->sadb_sa_spi;
623	spi = malloc(*sz);
624	if (!spi)
625	goto cleanup;
626	/* XXX This is ugly. */
627	if (proto == IPSEC_PROTO_IPCOMP4) {
628	u_int32_t tspi = ntohl(sa->sadb_sa_spi)(__uint32_t)(__builtin_constant_p(sa->sadb_sa_spi) ? (__uint32_t )(((__uint32_t)(sa->sadb_sa_spi) & 0xff) << 24 \| ((__uint32_t)(sa->sadb_sa_spi) & 0xff00) << 8 \| ((__uint32_t)(sa->sadb_sa_spi) & 0xff0000) >> 8 \| ((__uint32_t)(sa->sadb_sa_spi) & 0xff000000) >> 24) : __swap32md(sa->sadb_sa_spi));
629	(u_int16_t ) spi = htons((u_int16_t) tspi)(__uint16_t)(__builtin_constant_p((u_int16_t) tspi) ? (__uint16_t )(((__uint16_t)((u_int16_t) tspi) & 0xffU) << 8 \| ( (__uint16_t)((u_int16_t) tspi) & 0xff00U) >> 8) : __swap16md ((u_int16_t) tspi));
630	} else
631	memcpy(spi, &sa->sadb_sa_spi, *sz);
632
633	pf_key_v2_msg_free(ret);
634
635	LOG_DBG_BUF((LOG_SYSDEP, 50, "pf_key_v2_get_spi: spi", spi, sz))log_debug_buf (LOG_SYSDEP, 50, "pf_key_v2_get_spi: spi", spi, sz);
636	return spi;
637
638	cleanup:
639	free(spi);
640	free(addr);
641	if (getspi)
642	pf_key_v2_msg_free(getspi);
643	if (ret)
644	pf_key_v2_msg_free(ret);
645	return 0;
646	}
647
648	/* Fetch SA information from the kernel. XXX OpenBSD only? */
649	struct sa_kinfo *
650	pf_key_v2_get_kernel_sa(u_int8_t *spi, size_t spi_sz, u_int8_t proto,
651	struct sockaddr *dst)
652	{
653	struct sadb_msg msg;
654	struct sadb_sa *ssa;
655	struct sadb_address *addr = 0;
656	struct sockaddr *sa;
657	struct sadb_lifetime *life;
658	struct pf_key_v2_msg gettdb = 0, ret = 0;
659	struct pf_key_v2_node *ext;
660	static struct sa_kinfo ksa;
661	struct sadb_x_udpencap *udpencap;
662	int len, err;
663
664	if (spi_sz != sizeof (ssa->sadb_sa_spi))
665	return 0;
666
667	msg.sadb_msg_type = SADB_GET5;
668	switch (proto) {
669	case IPSEC_PROTO_IPSEC_ESP3:
670	msg.sadb_msg_satype = SADB_SATYPE_ESP2;
671	break;
672	case IPSEC_PROTO_IPSEC_AH2:
673	msg.sadb_msg_satype = SADB_SATYPE_AH1;
674	break;
675	case IPSEC_PROTO_IPCOMP4:
676	msg.sadb_msg_satype = SADB_X_SATYPE_IPCOMP9;
677	break;
678	default:
679	log_print("pf_key_v2_get_kernel_sa: invalid proto %d", proto);
680	goto cleanup;
681	}
682
683	gettdb = pf_key_v2_msg_new(&msg, 0);
684	if (!gettdb)
685	goto cleanup;
686
687	/* SPI */
688	ssa = calloc(1, sizeof *ssa);
689	if (!ssa) {
690	log_print("pf_key_v2_get_kernel_sa: calloc(1, %lu) failed",
691	(unsigned long)sizeof *ssa);
692	goto cleanup;
693	}
694
695	ssa->sadb_sa_exttype = SADB_EXT_SA1;
696	ssa->sadb_sa_len = sizeof *ssa / PF_KEY_V2_CHUNK8;
697	memcpy(&ssa->sadb_sa_spi, spi, sizeof ssa->sadb_sa_spi);
698	ssa->sadb_sa_state = SADB_SASTATE_MATURE1;
699	if (pf_key_v2_msg_add(gettdb, (struct sadb_ext *)ssa,
700	PF_KEY_V2_NODE_MALLOCED1) == -1)
701	goto cleanup;
702	ssa = 0;
703
704	/* Address */
705	len =
706	sizeof(struct sadb_address) + PF_KEY_V2_ROUND(SA_LEN(dst))(((((dst)->sa_len)) + 8 - 1) & ~(8 - 1));
707	addr = calloc(1, len);
708	if (!addr)
709	goto cleanup;
710	addr->sadb_address_exttype = SADB_EXT_ADDRESS_DST6;
711	addr->sadb_address_len = len / PF_KEY_V2_CHUNK8;
712	addr->sadb_address_reserved = 0;
713	memcpy(addr + 1, dst, SA_LEN(dst)((dst)->sa_len));
714	switch (((struct sockaddr *) (addr + 1))->sa_family) {
715	case AF_INET2:
716	((struct sockaddr_in *) (addr + 1))->sin_port = 0;
717	break;
718	case AF_INET624:
719	((struct sockaddr_in6 *) (addr + 1))->sin6_port = 0;
720	break;
721	}
722	if (pf_key_v2_msg_add(gettdb, (struct sadb_ext *)addr,
723	PF_KEY_V2_NODE_MALLOCED1) == -1)
724	goto cleanup;
725	addr = 0;
726
727	ret = pf_key_v2_call(gettdb);
728	pf_key_v2_msg_free(gettdb);
729	gettdb = 0;
730	if (!ret)
731	goto cleanup;
732	err = ((struct sadb_msg *)TAILQ_FIRST(ret)((ret)->tqh_first)->seg)->sadb_msg_errno;
733	if (err) {
734	log_print("pf_key_v2_get_kernel_sa: SADB_GET: %s",
735	strerror(err));
736	goto cleanup;
737	}
738
739	/* Extract the data. */
740	bzero(&ksa, sizeof ksa);
741
742	ext = pf_key_v2_find_ext(ret, SADB_EXT_SA1);
743	if (!ext)
744	goto cleanup;
745
746	ssa = (struct sadb_sa *)ext;
747	ksa.spi = ssa->sadb_sa_spi;
748	ksa.wnd = ssa->sadb_sa_replay;
749	ksa.flags = ssa->sadb_sa_flags;
750
751	ext = pf_key_v2_find_ext(ret, SADB_EXT_LIFETIME_CURRENT2);
752	if (ext) {
753	life = (struct sadb_lifetime *)ext->seg;
754	ksa.cur_allocations = life->sadb_lifetime_allocations;
755	ksa.cur_bytes = life->sadb_lifetime_bytes;
756	ksa.first_use = life->sadb_lifetime_usetime;
757	ksa.established = life->sadb_lifetime_addtime;
758	}
759
760	ext = pf_key_v2_find_ext(ret, SADB_EXT_LIFETIME_SOFT4);
761	if (ext) {
762	life = (struct sadb_lifetime *)ext->seg;
763	ksa.soft_allocations = life->sadb_lifetime_allocations;
764	ksa.soft_bytes = life->sadb_lifetime_bytes;
765	ksa.soft_timeout = life->sadb_lifetime_addtime;
766	ksa.soft_first_use = life->sadb_lifetime_usetime;
767	}
768
769	ext = pf_key_v2_find_ext(ret, SADB_EXT_LIFETIME_HARD3);
770	if (ext) {
771	life = (struct sadb_lifetime *)ext->seg;
772	ksa.exp_allocations = life->sadb_lifetime_allocations;
773	ksa.exp_bytes = life->sadb_lifetime_bytes;
774	ksa.exp_timeout = life->sadb_lifetime_addtime;
775	ksa.exp_first_use = life->sadb_lifetime_usetime;
776	}
777
778	ext = pf_key_v2_find_ext(ret, SADB_X_EXT_LIFETIME_LASTUSE32);
779	if (ext) {
780	life = (struct sadb_lifetime *)ext->seg;
781	ksa.last_used = life->sadb_lifetime_usetime;
782	}
783
784	ext = pf_key_v2_find_ext(ret, SADB_EXT_ADDRESS_SRC5);
785	if (ext) {
786	sa = (struct sockaddr *)ext->seg;
787	memcpy(&ksa.src, sa,
788	sa->sa_family == AF_INET2 ? sizeof(struct sockaddr_in) :
789	sizeof(struct sockaddr_in6));
790	}
791
792	ext = pf_key_v2_find_ext(ret, SADB_EXT_ADDRESS_DST6);
793	if (ext) {
794	sa = (struct sockaddr *)ext->seg;
795	memcpy(&ksa.dst, sa,
796	sa->sa_family == AF_INET2 ? sizeof(struct sockaddr_in) :
797	sizeof(struct sockaddr_in6));
798	}
799
800	ext = pf_key_v2_find_ext(ret, SADB_X_EXT_UDPENCAP31);
801	if (ext) {
802	udpencap = (struct sadb_x_udpencap *)ext->seg;
803	ksa.udpencap_port = udpencap->sadb_x_udpencap_port;
804	}
805
806	pf_key_v2_msg_free(ret);
807
808	LOG_DBG_BUF((LOG_SYSDEP, 50, "pf_key_v2_get_kernel_sa: spi", spi,log_debug_buf (LOG_SYSDEP, 50, "pf_key_v2_get_kernel_sa: spi" , spi, spi_sz)
809	spi_sz))log_debug_buf (LOG_SYSDEP, 50, "pf_key_v2_get_kernel_sa: spi" , spi, spi_sz);
810
811	return &ksa;
812
813	cleanup:
814	free(addr);
815	if (gettdb)
816	pf_key_v2_msg_free(gettdb);
817	if (ret)
818	pf_key_v2_msg_free(ret);
819	return 0;
820	}
821
822	static void
823	pf_key_v2_setup_sockaddr(void res, struct sockaddr src,
824	struct sockaddr *dst, in_port_t port, int ingress)
825	{
826	struct sockaddr_in *ip4_sa;
827	struct sockaddr_in6 *ip6_sa;
828	u_int8_t *p;
829
830	switch (src->sa_family) {
831	case AF_INET2:
832	ip4_sa = (struct sockaddr_in *) res;
833	ip4_sa->sin_family = AF_INET2;
834	ip4_sa->sin_len = sizeof *ip4_sa;
835	ip4_sa->sin_port = port;
836	if (dst)
837	p = (u_int8_t *) (ingress ?
838	&((struct sockaddr_in *)src)->sin_addr.s_addr :
839	&((struct sockaddr_in *)dst)->sin_addr.s_addr);
840	else
841	p = (u_int8_t )&((struct sockaddr_in )src)->sin_addr.s_addr;
842	ip4_sa->sin_addr.s_addr = ((in_addr_t ) p);
843	break;
844
845	case AF_INET624:
846	ip6_sa = (struct sockaddr_in6 *) res;
847	ip6_sa->sin6_family = AF_INET624;
848	ip6_sa->sin6_len = sizeof *ip6_sa;
849	ip6_sa->sin6_port = port;
850	if (dst)
851	p = (u_int8_t *) (ingress ?
852	&((struct sockaddr_in6 *)src)->sin6_addr.s6_addr__u6_addr.__u6_addr8 :
853	&((struct sockaddr_in6 *)dst)->sin6_addr.s6_addr__u6_addr.__u6_addr8);
854	else
855	p = (u_int8_t )&((struct sockaddr_in6 )src)->sin6_addr.s6_addr__u6_addr.__u6_addr8;
856	memcpy(ip6_sa->sin6_addr.s6_addr__u6_addr.__u6_addr8, p, sizeof(struct in6_addr));
857	break;
858
859	default:
860	log_print("pf_key_v2_setup_sockaddr: unknown family %d\n",
861	src->sa_family);
862	break;
863	}
864	}
865
866	/*
867	* Store/update a PF_KEY_V2 security association with full information from the
868	* IKE SA and PROTO into the kernel. INCOMING is set if we are setting the
869	* parameters for the incoming SA, and cleared otherwise.
870	*/
871	int
872	pf_key_v2_set_spi(struct sa sa, struct proto proto, int incoming,
873	struct sa *isakmp_sa)
874	{
875	struct sadb_msg msg;
876	struct sadb_sa ssa;
877	struct sadb_x_tag stag = NULL((void )0);
878	struct sadb_lifetime *life = 0;
879	struct sadb_address *addr = 0;
880	struct sadb_key *key = 0;
881	struct sadb_ident *sid = 0;
882	struct sockaddr src, dst;
883	struct pf_key_v2_msg update = 0, ret = 0;
884	struct ipsec_proto *iproto = proto->data;
885	size_t len;
886	int keylen, hashlen, err;
887	u_int8_t *pp;
888	int idtype;
889	struct ipsec_sa *isa = sa->data;
890	struct sadb_protocol flowtype, tprotocol;
891	struct sadb_x_udpencap udpencap;
892	char addr_str, s;
893
894	msg.sadb_msg_type = incoming ? SADB_UPDATE2 : SADB_ADD3;
895	switch (proto->proto) {
896	case IPSEC_PROTO_IPSEC_ESP3:
897	msg.sadb_msg_satype = SADB_SATYPE_ESP2;
898	keylen = ipsec_esp_enckeylength(proto);
899	hashlen = ipsec_esp_authkeylength(proto);
900
901	switch (proto->id) {
902	case IPSEC_ESP_3DES3:
903	ssa.sadb_sa_encrypt = SADB_EALG_3DESCBC3;
904	break;
905
906	case IPSEC_ESP_AES12:
907	ssa.sadb_sa_encrypt = SADB_X_EALG_AES12;
908	break;
909
910	case IPSEC_ESP_AES_CTR13:
911	ssa.sadb_sa_encrypt = SADB_X_EALG_AESCTR13;
912	break;
913
914	case IPSEC_ESP_AES_GCM_1620:
915	ssa.sadb_sa_encrypt = SADB_X_EALG_AESGCM1620;
916	break;
917
918	case IPSEC_ESP_AES_GMAC23:
919	ssa.sadb_sa_encrypt = SADB_X_EALG_AESGMAC21;
920	break;
921
922	case IPSEC_ESP_CAST6:
923	ssa.sadb_sa_encrypt = SADB_X_EALG_CAST6;
924	break;
925
926	case IPSEC_ESP_BLOWFISH7:
927	ssa.sadb_sa_encrypt = SADB_X_EALG_BLF7;
928	break;
929
930	case IPSEC_ESP_NULL11:
931	ssa.sadb_sa_encrypt = SADB_EALG_NULL11;
932	break;
933
934	default:
935	LOG_DBG((LOG_SYSDEP, 50, "pf_key_v2_set_spi: "log_debug (LOG_SYSDEP, 50, "pf_key_v2_set_spi: " "unknown encryption algorithm %d" , proto->id)
936	"unknown encryption algorithm %d", proto->id))log_debug (LOG_SYSDEP, 50, "pf_key_v2_set_spi: " "unknown encryption algorithm %d" , proto->id);
937	return -1;
938	}
939
940	switch (iproto->auth) {
941	case IPSEC_AUTH_HMAC_MD51:
942	ssa.sadb_sa_auth = SADB_AALG_MD5HMAC2;
943	break;
944
945	case IPSEC_AUTH_HMAC_SHA2:
946	ssa.sadb_sa_auth = SADB_AALG_SHA1HMAC3;
947	break;
948
949	case IPSEC_AUTH_HMAC_RIPEMD8:
950	ssa.sadb_sa_auth = SADB_X_AALG_RIPEMD160HMAC8;
951	break;
952
953	case IPSEC_AUTH_HMAC_SHA2_2565:
954	ssa.sadb_sa_auth = SADB_X_AALG_SHA2_2565;
955	break;
956
957	case IPSEC_AUTH_HMAC_SHA2_3846:
958	ssa.sadb_sa_auth = SADB_X_AALG_SHA2_3846;
959	break;
960
961	case IPSEC_AUTH_HMAC_SHA2_5127:
962	ssa.sadb_sa_auth = SADB_X_AALG_SHA2_5127;
963	break;
964
965	case IPSEC_AUTH_DES_MAC3:
966	case IPSEC_AUTH_KPDK4:
967	/* XXX We should be supporting KPDK */
968	LOG_DBG((LOG_SYSDEP, 50, "pf_key_v2_set_spi: "log_debug (LOG_SYSDEP, 50, "pf_key_v2_set_spi: " "unknown authentication algorithm %d" , iproto->auth)
969	"unknown authentication algorithm %d",log_debug (LOG_SYSDEP, 50, "pf_key_v2_set_spi: " "unknown authentication algorithm %d" , iproto->auth)
970	iproto->auth))log_debug (LOG_SYSDEP, 50, "pf_key_v2_set_spi: " "unknown authentication algorithm %d" , iproto->auth);
971	return -1;
972
973	default:
974	ssa.sadb_sa_auth = SADB_AALG_NONE0;
975	}
976	break;
977
978	case IPSEC_PROTO_IPSEC_AH2:
979	msg.sadb_msg_satype = SADB_SATYPE_AH1;
980	hashlen = ipsec_ah_keylength(proto);
981	keylen = 0;
982
983	ssa.sadb_sa_encrypt = SADB_EALG_NONE0;
984	switch (proto->id) {
985	case IPSEC_AH_MD52:
986	ssa.sadb_sa_auth = SADB_AALG_MD5HMAC2;
987	break;
988
989	case IPSEC_AH_SHA3:
990	ssa.sadb_sa_auth = SADB_AALG_SHA1HMAC3;
991	break;
992
993	case IPSEC_AH_RIPEMD8:
994	ssa.sadb_sa_auth = SADB_X_AALG_RIPEMD160HMAC8;
995	break;
996
997	case IPSEC_AH_SHA2_2565:
998	ssa.sadb_sa_auth = SADB_X_AALG_SHA2_2565;
999	break;
1000
1001	case IPSEC_AH_SHA2_3846:
1002	ssa.sadb_sa_auth = SADB_X_AALG_SHA2_3846;
1003	break;
1004
1005	case IPSEC_AH_SHA2_5127:
1006	ssa.sadb_sa_auth = SADB_X_AALG_SHA2_5127;
1007	break;
1008
1009	default:
1010	LOG_DBG((LOG_SYSDEP, 50, "pf_key_v2_set_spi: "log_debug (LOG_SYSDEP, 50, "pf_key_v2_set_spi: " "unknown authentication algorithm %d" , proto->id)
1011	"unknown authentication algorithm %d", proto->id))log_debug (LOG_SYSDEP, 50, "pf_key_v2_set_spi: " "unknown authentication algorithm %d" , proto->id);
1012	goto cleanup;
1013	}
1014	break;
1015
1016	case IPSEC_PROTO_IPCOMP4:
1017	msg.sadb_msg_satype = SADB_X_SATYPE_IPCOMP9;
1018	ssa.sadb_sa_auth = SADB_AALG_NONE0;
1019	keylen = 0;
1020	hashlen = 0;
1021
1022	/*
1023	* Put compression algorithm type in the sadb_sa_encrypt
1024	* field.
1025	*/
1026	switch (proto->id) {
1027	case IPSEC_IPCOMP_OUI1:
1028	ssa.sadb_sa_encrypt = SADB_X_CALG_OUI1;
1029	break;
1030
1031	case IPSEC_IPCOMP_DEFLATE2:
1032	ssa.sadb_sa_encrypt = SADB_X_CALG_DEFLATE2;
1033	break;
1034
1035	default:
1036	break;
1037	}
1038	break;
1039
1040	default:
1041	log_print("pf_key_v2_set_spi: invalid proto %d", proto->proto);
1042	goto cleanup;
1043	}
1044	if (incoming)
1045	sa->transport->vtbl->get_src(sa->transport, &dst);
1046	else
1047	sa->transport->vtbl->get_dst(sa->transport, &dst);
1048	msg.sadb_msg_seq = sa->seq;
1049	update = pf_key_v2_msg_new(&msg, 0);
1050	if (!update)
1051	goto cleanup;
1052
1053	/* Setup the rest of the SA extension. */
1054	ssa.sadb_sa_exttype = SADB_EXT_SA1;
1055	ssa.sadb_sa_len = sizeof ssa / PF_KEY_V2_CHUNK8;
1056	if (proto->spi_sz[incoming] == 2) /* IPCOMP uses 16bit CPIs. */
1057	ssa.sadb_sa_spi = htonl(proto->spi[incoming][0] << 8 \|(__uint32_t)(__builtin_constant_p(proto->spi[incoming][0] << 8 \| proto->spi[incoming][1]) ? (__uint32_t)(((__uint32_t) (proto->spi[incoming][0] << 8 \| proto->spi[incoming ][1]) & 0xff) << 24 \| ((__uint32_t)(proto->spi[incoming ][0] << 8 \| proto->spi[incoming][1]) & 0xff00) << 8 \| ((__uint32_t)(proto->spi[incoming][0] << 8 \| proto ->spi[incoming][1]) & 0xff0000) >> 8 \| ((__uint32_t )(proto->spi[incoming][0] << 8 \| proto->spi[incoming ][1]) & 0xff000000) >> 24) : __swap32md(proto->spi [incoming][0] << 8 \| proto->spi[incoming][1]))
1058	proto->spi[incoming][1])(__uint32_t)(__builtin_constant_p(proto->spi[incoming][0] << 8 \| proto->spi[incoming][1]) ? (__uint32_t)(((__uint32_t) (proto->spi[incoming][0] << 8 \| proto->spi[incoming ][1]) & 0xff) << 24 \| ((__uint32_t)(proto->spi[incoming ][0] << 8 \| proto->spi[incoming][1]) & 0xff00) << 8 \| ((__uint32_t)(proto->spi[incoming][0] << 8 \| proto ->spi[incoming][1]) & 0xff0000) >> 8 \| ((__uint32_t )(proto->spi[incoming][0] << 8 \| proto->spi[incoming ][1]) & 0xff000000) >> 24) : __swap32md(proto->spi [incoming][0] << 8 \| proto->spi[incoming][1]));
1059	else
1060	memcpy(&ssa.sadb_sa_spi, proto->spi[incoming],
1061	sizeof ssa.sadb_sa_spi);
1062	ssa.sadb_sa_replay = conf_get_str("General", "Shared-SADB") ? 0 :
1063	iproto->replay_window;
1064	ssa.sadb_sa_state = SADB_SASTATE_MATURE1;
1065	ssa.sadb_sa_flags = 0;
1066	if (iproto->encap_mode == IPSEC_ENCAP_TUNNEL1 \|\|
1067	iproto->encap_mode == IPSEC_ENCAP_UDP_ENCAP_TUNNEL3 \|\|
1068	iproto->encap_mode == IPSEC_ENCAP_UDP_ENCAP_TUNNEL_DRAFT61443)
1069	ssa.sadb_sa_flags = SADB_X_SAFLAGS_TUNNEL0x004;
1070
1071	if (isakmp_sa->flags & SA_FLAG_NAT_T_ENABLE0x100) {
1072	bzero(&udpencap, sizeof udpencap);
1073	ssa.sadb_sa_flags \|= SADB_X_SAFLAGS_UDPENCAP0x200;
1074	udpencap.sadb_x_udpencap_exttype = SADB_X_EXT_UDPENCAP31;
1075	udpencap.sadb_x_udpencap_len =
1076	sizeof udpencap / PF_KEY_V2_CHUNK8;
1077	udpencap.sadb_x_udpencap_port = sockaddr_port(dst);
1078	if (pf_key_v2_msg_add(update, (struct sadb_ext *)&udpencap, 0)
1079	== -1)
1080	goto cleanup;
1081	}
1082
1083	if (pf_key_v2_msg_add(update, (struct sadb_ext *)&ssa, 0) == -1)
1084	goto cleanup;
1085
1086	if (sa->seconds \|\| sa->kilobytes) {
1087	/* Setup the hard limits. */
1088	life = malloc(sizeof *life);
1089	if (!life)
1090	goto cleanup;
1091	life->sadb_lifetime_len = sizeof *life / PF_KEY_V2_CHUNK8;
1092	life->sadb_lifetime_exttype = SADB_EXT_LIFETIME_HARD3;
1093	life->sadb_lifetime_allocations = 0;
1094	life->sadb_lifetime_bytes = sa->kilobytes * 1024;
1095	/*
1096	* XXX I am not sure which one is best in security respect.
1097	* Maybe the RFCs actually mandate what a lifetime really is.
1098	*/
1099	#if 0
1100	life->sadb_lifetime_addtime = 0;
1101	life->sadb_lifetime_usetime = sa->seconds;
1102	#else
1103	life->sadb_lifetime_addtime = sa->seconds;
1104	life->sadb_lifetime_usetime = 0;
1105	#endif
1106	if (pf_key_v2_msg_add(update, (struct sadb_ext *) life,
1107	PF_KEY_V2_NODE_MALLOCED1) == -1)
1108	goto cleanup;
1109	life = 0;
1110
1111	/*
1112	* Setup the soft limits, we use 90 % of the hard ones.
1113	* XXX A configurable ratio would be better.
1114	*/
1115	life = malloc(sizeof *life);
1116	if (!life)
1117	goto cleanup;
1118	life->sadb_lifetime_len = sizeof *life / PF_KEY_V2_CHUNK8;
1119	life->sadb_lifetime_exttype = SADB_EXT_LIFETIME_SOFT4;
1120	life->sadb_lifetime_allocations = 0;
1121	life->sadb_lifetime_bytes = sa->kilobytes * 1024 * 9 / 10;
1122	/*
1123	* XXX I am not sure which one is best in security respect.
1124	* Maybe the RFCs actually mandate what a lifetime really is.
1125	*/
1126	#if 0
1127	life->sadb_lifetime_addtime = 0;
1128	life->sadb_lifetime_usetime = sa->seconds * 9 / 10;
1129	#else
1130	life->sadb_lifetime_addtime = sa->seconds * 9 / 10;
1131	life->sadb_lifetime_usetime = 0;
1132	#endif
1133	if (pf_key_v2_msg_add(update, (struct sadb_ext *) life,
1134	PF_KEY_V2_NODE_MALLOCED1) == -1)
1135	goto cleanup;
1136	life = 0;
1137	}
1138	/*
1139	* Setup the ADDRESS extensions.
1140	*/
1141	if (incoming)
1142	sa->transport->vtbl->get_dst(sa->transport, &src);
1143	else
1144	sa->transport->vtbl->get_src(sa->transport, &src);
1145	len = sizeof *addr + PF_KEY_V2_ROUND(SA_LEN(src))(((((src)->sa_len)) + 8 - 1) & ~(8 - 1));
1146	addr = calloc(1, len);
1147	if (!addr)
1148	goto cleanup;
1149	addr->sadb_address_exttype = SADB_EXT_ADDRESS_SRC5;
1150	addr->sadb_address_len = len / PF_KEY_V2_CHUNK8;
1151	addr->sadb_address_reserved = 0;
1152	memcpy(addr + 1, src, SA_LEN(src)((src)->sa_len));
1153	switch (((struct sockaddr *) (addr + 1))->sa_family) {
1154	case AF_INET2:
1155	((struct sockaddr_in *) (addr + 1))->sin_port = 0;
1156	break;
1157	case AF_INET624:
1158	((struct sockaddr_in6 *) (addr + 1))->sin6_port = 0;
1159	break;
1160	}
1161	if (pf_key_v2_msg_add(update, (struct sadb_ext *) addr,
1162	PF_KEY_V2_NODE_MALLOCED1) == -1)
1163	goto cleanup;
1164	addr = 0;
1165
1166	len = sizeof *addr + PF_KEY_V2_ROUND(SA_LEN(dst))(((((dst)->sa_len)) + 8 - 1) & ~(8 - 1));
1167	addr = calloc(1, len);
1168	if (!addr)
1169	goto cleanup;
1170	addr->sadb_address_exttype = SADB_EXT_ADDRESS_DST6;
1171	addr->sadb_address_len = len / PF_KEY_V2_CHUNK8;
1172	addr->sadb_address_reserved = 0;
1173	memcpy(addr + 1, dst, SA_LEN(dst)((dst)->sa_len));
1174	switch (((struct sockaddr *) (addr + 1))->sa_family) {
1175	case AF_INET2:
1176	((struct sockaddr_in *) (addr + 1))->sin_port = 0;
1177	break;
1178	case AF_INET624:
1179	((struct sockaddr_in6 *) (addr + 1))->sin6_port = 0;
1180	break;
1181	}
1182	if (pf_key_v2_msg_add(update, (struct sadb_ext *) addr,
1183	PF_KEY_V2_NODE_MALLOCED1) == -1)
1184	goto cleanup;
1185	addr = 0;
1186
1187	if (proto->proto != IPSEC_PROTO_IPCOMP4) {
1188	/* Setup the KEY extensions. */
1189	if (hashlen) {
1190	len = sizeof *key + PF_KEY_V2_ROUND(hashlen)(((hashlen) + 8 - 1) & ~(8 - 1));
1191	key = malloc(len);
1192	if (!key)
1193	goto cleanup;
1194	key->sadb_key_exttype = SADB_EXT_KEY_AUTH8;
1195	key->sadb_key_len = len / PF_KEY_V2_CHUNK8;
1196	key->sadb_key_bits = hashlen * 8;
1197	key->sadb_key_reserved = 0;
1198	memcpy(key + 1,
1199	iproto->keymat[incoming] +
1200	(proto->proto ==
1201	IPSEC_PROTO_IPSEC_ESP3 ? keylen : 0),
1202	hashlen);
1203	if (pf_key_v2_msg_add(update, (struct sadb_ext *) key,
1204	PF_KEY_V2_NODE_MALLOCED1) == -1)
1205	goto cleanup;
1206	key = 0;
1207	}
1208	if (keylen) {
1209	len = sizeof *key + PF_KEY_V2_ROUND(keylen)(((keylen) + 8 - 1) & ~(8 - 1));
1210	key = malloc(len);
1211	if (!key)
1212	goto cleanup;
1213	key->sadb_key_exttype = SADB_EXT_KEY_ENCRYPT9;
1214	key->sadb_key_len = len / PF_KEY_V2_CHUNK8;
1215	key->sadb_key_bits = keylen * 8;
1216	key->sadb_key_reserved = 0;
1217	memcpy(key + 1, iproto->keymat[incoming], keylen);
1218	if (pf_key_v2_msg_add(update, (struct sadb_ext *) key,
1219	PF_KEY_V2_NODE_MALLOCED1) == -1)
1220	goto cleanup;
1221	key = 0;
1222	}
1223	}
1224	/* Setup identity extensions. */
1225	if (isakmp_sa->id_i) {
1226	pp = pf_key_v2_convert_id(isakmp_sa->id_i, isakmp_sa->id_i_len,
1227	&len, &idtype);
1228	if (!pp)
1229	goto nosid;
1230
1231	sid = calloc(PF_KEY_V2_ROUND(len + 1)(((len + 1) + 8 - 1) & ~(8 - 1)) + sizeof *sid,
1232	sizeof(u_int8_t));
1233	if (!sid) {
1234	free(pp);
1235	goto cleanup;
1236	}
1237	sid->sadb_ident_type = idtype;
1238	sid->sadb_ident_len = ((sizeof *sid) / PF_KEY_V2_CHUNK8) +
1239	PF_KEY_V2_ROUND(len + 1)(((len + 1) + 8 - 1) & ~(8 - 1)) / PF_KEY_V2_CHUNK8;
1240	if ((isakmp_sa->initiator && !incoming) \|\|
1241	(!isakmp_sa->initiator && incoming))
1242	sid->sadb_ident_exttype = SADB_EXT_IDENTITY_SRC10;
1243	else
1244	sid->sadb_ident_exttype = SADB_EXT_IDENTITY_DST11;
1245
1246	memcpy(sid + 1, pp, len);
1247	free(pp);
1248
1249	if (pf_key_v2_msg_add(update, (struct sadb_ext *) sid,
1250	PF_KEY_V2_NODE_MALLOCED1) == -1)
1251	goto cleanup;
1252	sid = 0;
1253
1254	nosid:
1255	free(sid);
1256	sid = 0;
1257	}
1258	if (isakmp_sa->id_r) {
1259	pp = pf_key_v2_convert_id(isakmp_sa->id_r, isakmp_sa->id_r_len,
1260	&len, &idtype);
1261	if (!pp)
1262	goto nodid;
1263
1264	sid = calloc(PF_KEY_V2_ROUND(len + 1)(((len + 1) + 8 - 1) & ~(8 - 1)) + sizeof *sid,
1265	sizeof(u_int8_t));
1266	if (!sid) {
1267	free(pp);
1268	goto cleanup;
1269	}
1270	sid->sadb_ident_type = idtype;
1271	sid->sadb_ident_len = ((sizeof *sid) / PF_KEY_V2_CHUNK8) +
1272	PF_KEY_V2_ROUND(len + 1)(((len + 1) + 8 - 1) & ~(8 - 1)) / PF_KEY_V2_CHUNK8;
1273	if ((isakmp_sa->initiator && !incoming) \|\|
1274	(!isakmp_sa->initiator && incoming))
1275	sid->sadb_ident_exttype = SADB_EXT_IDENTITY_DST11;
1276	else
1277	sid->sadb_ident_exttype = SADB_EXT_IDENTITY_SRC10;
1278
1279	memcpy(sid + 1, pp, len);
1280	free(pp);
1281
1282	if (pf_key_v2_msg_add(update, (struct sadb_ext *) sid,
1283	PF_KEY_V2_NODE_MALLOCED1) == -1)
1284	goto cleanup;
1285	sid = 0;
1286
1287	nodid:
1288	free(sid);
1289	sid = 0;
1290	}
1291
1292	/* Setup the flow type extension. */
1293	bzero(&flowtype, sizeof flowtype);
1294	flowtype.sadb_protocol_exttype = SADB_X_EXT_FLOW_TYPE20;
1295	flowtype.sadb_protocol_len = sizeof flowtype / PF_KEY_V2_CHUNK8;
1296	flowtype.sadb_protocol_direction = incoming ?
1297	IPSP_DIRECTION_IN0x1 : IPSP_DIRECTION_OUT0x2;
1298
1299	if (pf_key_v2_msg_add(update, (struct sadb_ext *)&flowtype, 0) == -1)
1300	goto cleanup;
1301
1302	bzero(&tprotocol, sizeof tprotocol);
1303	tprotocol.sadb_protocol_exttype = SADB_X_EXT_PROTOCOL19;
1304	tprotocol.sadb_protocol_len = sizeof tprotocol / PF_KEY_V2_CHUNK8;
1305	tprotocol.sadb_protocol_proto = isa->tproto;
1306
1307	if (pf_key_v2_msg_add(update, (struct sadb_ext *)&tprotocol,
1308	0) == -1)
1309	goto cleanup;
1310
1311	len = sizeof *addr + PF_KEY_V2_ROUND(SA_LEN(isa->src_net))(((((isa->src_net)->sa_len)) + 8 - 1) & ~(8 - 1));
1312	addr = calloc(1, len);
1313	if (!addr)
1314	goto cleanup;
1315	addr->sadb_address_exttype = incoming ?
1316	SADB_X_EXT_DST_FLOW22 : SADB_X_EXT_SRC_FLOW21;
1317	addr->sadb_address_len = len / PF_KEY_V2_CHUNK8;
1318	addr->sadb_address_reserved = 0;
1319	pf_key_v2_setup_sockaddr(addr + 1, isa->src_net, 0, isa->sport, 0);
1320	if (pf_key_v2_msg_add(update, (struct sadb_ext *) addr,
1321	PF_KEY_V2_NODE_MALLOCED1) == -1)
1322	goto cleanup;
1323	addr = 0;
1324
1325	addr = calloc(1, len);
1326	if (!addr)
1327	goto cleanup;
1328	addr->sadb_address_exttype =
1329	incoming ? SADB_X_EXT_DST_MASK18 : SADB_X_EXT_SRC_MASK17;
1330	addr->sadb_address_len = len / PF_KEY_V2_CHUNK8;
1331	addr->sadb_address_reserved = 0;
1332	pf_key_v2_setup_sockaddr(addr + 1, isa->src_mask, 0,
1333	isa->sport ? 0xffff : 0, 0);
1334	if (pf_key_v2_msg_add(update, (struct sadb_ext *) addr,
1335	PF_KEY_V2_NODE_MALLOCED1) == -1)
1336	goto cleanup;
1337	addr = 0;
1338
1339	addr = calloc(1, len);
1340	if (!addr)
1341	goto cleanup;
1342	addr->sadb_address_exttype = incoming ?
1343	SADB_X_EXT_SRC_FLOW21 : SADB_X_EXT_DST_FLOW22;
1344	addr->sadb_address_len = len / PF_KEY_V2_CHUNK8;
1345	addr->sadb_address_reserved = 0;
1346	pf_key_v2_setup_sockaddr(addr + 1, isa->dst_net, 0, isa->dport, 0);
1347	if (pf_key_v2_msg_add(update, (struct sadb_ext *) addr,
1348	PF_KEY_V2_NODE_MALLOCED1) == -1)
1349	goto cleanup;
1350	addr = 0;
1351
1352	addr = calloc(1, len);
1353	if (!addr)
1354	goto cleanup;
1355	addr->sadb_address_exttype =
1356	incoming ? SADB_X_EXT_SRC_MASK17 : SADB_X_EXT_DST_MASK18;
1357	addr->sadb_address_len = len / PF_KEY_V2_CHUNK8;
1358	addr->sadb_address_reserved = 0;
1359	pf_key_v2_setup_sockaddr(addr + 1, isa->dst_mask, 0,
1360	isa->dport ? 0xffff : 0, 0);
1361	if (pf_key_v2_msg_add(update, (struct sadb_ext *) addr,
1362	PF_KEY_V2_NODE_MALLOCED1) == -1)
1363	goto cleanup;
1364	addr = 0;
1365
1366	/* Add a pf tag to matching packets of this SA. */
1367	if (sa->tag != NULL((void *)0)) {
1368	len = sizeof(*stag) + PF_KEY_V2_ROUND(strlen(sa->tag) + 1)(((strlen(sa->tag) + 1) + 8 - 1) & ~(8 - 1));
1369	if ((stag = calloc(1, len)) == NULL((void *)0))
1370	goto cleanup;
1371	stag->sadb_x_tag_exttype = SADB_X_EXT_TAG33;
1372	stag->sadb_x_tag_len = len / PF_KEY_V2_CHUNK8;
1373	stag->sadb_x_tag_taglen = strlen(sa->tag) + 1;
1374	s = (char *)(stag + 1);
1375	strlcpy(s, sa->tag, stag->sadb_x_tag_taglen);
1376	if (pf_key_v2_msg_add(update, (struct sadb_ext *)stag,
1377	PF_KEY_V2_NODE_MALLOCED1) == -1)
1378	goto cleanup;
1379	}
1380
1381	/* XXX Here can sensitivity extensions be setup. */
1382
1383	if (sockaddr2text(dst, &addr_str, 0))
1384	addr_str = 0;
1385
1386	LOG_DBG((LOG_SYSDEP, 10, "pf_key_v2_set_spi: "log_debug (LOG_SYSDEP, 10, "pf_key_v2_set_spi: " "satype %d dst %s SPI 0x%x%s%s" , msg.sadb_msg_satype, addr_str ? addr_str : "unknown", (__uint32_t )(__builtin_constant_p(ssa.sadb_sa_spi) ? (__uint32_t)(((__uint32_t )(ssa.sadb_sa_spi) & 0xff) << 24 \| ((__uint32_t)(ssa .sadb_sa_spi) & 0xff00) << 8 \| ((__uint32_t)(ssa.sadb_sa_spi ) & 0xff0000) >> 8 \| ((__uint32_t)(ssa.sadb_sa_spi) & 0xff000000) >> 24) : __swap32md(ssa.sadb_sa_spi) ), sa->tag ? " tag " : "", sa->tag ? sa->tag : "")
1387	"satype %d dst %s SPI 0x%x%s%s", msg.sadb_msg_satype,log_debug (LOG_SYSDEP, 10, "pf_key_v2_set_spi: " "satype %d dst %s SPI 0x%x%s%s" , msg.sadb_msg_satype, addr_str ? addr_str : "unknown", (__uint32_t )(__builtin_constant_p(ssa.sadb_sa_spi) ? (__uint32_t)(((__uint32_t )(ssa.sadb_sa_spi) & 0xff) << 24 \| ((__uint32_t)(ssa .sadb_sa_spi) & 0xff00) << 8 \| ((__uint32_t)(ssa.sadb_sa_spi ) & 0xff0000) >> 8 \| ((__uint32_t)(ssa.sadb_sa_spi) & 0xff000000) >> 24) : __swap32md(ssa.sadb_sa_spi) ), sa->tag ? " tag " : "", sa->tag ? sa->tag : "")
1388	addr_str ? addr_str : "unknown",log_debug (LOG_SYSDEP, 10, "pf_key_v2_set_spi: " "satype %d dst %s SPI 0x%x%s%s" , msg.sadb_msg_satype, addr_str ? addr_str : "unknown", (__uint32_t )(__builtin_constant_p(ssa.sadb_sa_spi) ? (__uint32_t)(((__uint32_t )(ssa.sadb_sa_spi) & 0xff) << 24 \| ((__uint32_t)(ssa .sadb_sa_spi) & 0xff00) << 8 \| ((__uint32_t)(ssa.sadb_sa_spi ) & 0xff0000) >> 8 \| ((__uint32_t)(ssa.sadb_sa_spi) & 0xff000000) >> 24) : __swap32md(ssa.sadb_sa_spi) ), sa->tag ? " tag " : "", sa->tag ? sa->tag : "")
1389	ntohl(ssa.sadb_sa_spi), sa->tag ? " tag " : "",log_debug (LOG_SYSDEP, 10, "pf_key_v2_set_spi: " "satype %d dst %s SPI 0x%x%s%s" , msg.sadb_msg_satype, addr_str ? addr_str : "unknown", (__uint32_t )(__builtin_constant_p(ssa.sadb_sa_spi) ? (__uint32_t)(((__uint32_t )(ssa.sadb_sa_spi) & 0xff) << 24 \| ((__uint32_t)(ssa .sadb_sa_spi) & 0xff00) << 8 \| ((__uint32_t)(ssa.sadb_sa_spi ) & 0xff0000) >> 8 \| ((__uint32_t)(ssa.sadb_sa_spi) & 0xff000000) >> 24) : __swap32md(ssa.sadb_sa_spi) ), sa->tag ? " tag " : "", sa->tag ? sa->tag : "")
1390	sa->tag ? sa->tag : ""))log_debug (LOG_SYSDEP, 10, "pf_key_v2_set_spi: " "satype %d dst %s SPI 0x%x%s%s" , msg.sadb_msg_satype, addr_str ? addr_str : "unknown", (__uint32_t )(__builtin_constant_p(ssa.sadb_sa_spi) ? (__uint32_t)(((__uint32_t )(ssa.sadb_sa_spi) & 0xff) << 24 \| ((__uint32_t)(ssa .sadb_sa_spi) & 0xff00) << 8 \| ((__uint32_t)(ssa.sadb_sa_spi ) & 0xff0000) >> 8 \| ((__uint32_t)(ssa.sadb_sa_spi) & 0xff000000) >> 24) : __swap32md(ssa.sadb_sa_spi) ), sa->tag ? " tag " : "", sa->tag ? sa->tag : "");
1391
1392	free(addr_str);
1393
1394	/*
1395	* Although PF_KEY knows about expirations, it is unreliable per the
1396	* specs thus we need to do them inside isakmpd as well.
1397	*/
1398	if (sa->seconds)
1399	if (sa_setup_expirations(sa))
1400	goto cleanup;
1401
1402	ret = pf_key_v2_call(update);
1403	pf_key_v2_msg_free(update);
1404	update = 0;
1405	if (!ret)
1406	goto cleanup;
1407	err = ((struct sadb_msg *)TAILQ_FIRST(ret)((ret)->tqh_first)->seg)->sadb_msg_errno;
1408	pf_key_v2_msg_free(ret);
1409	ret = 0;
1410
1411	/*
1412	* If we are doing an addition into an SADB shared with our peer,
1413	* errors here are to be expected as the peer will already have
1414	* created the SA, and can thus be ignored.
1415	*/
1416	if (err && !(msg.sadb_msg_type == SADB_ADD3 &&
1417	conf_get_str("General", "Shared-SADB"))) {
1418	log_print("pf_key_v2_set_spi: %s: %s",
1419	msg.sadb_msg_type == SADB_ADD3 ? "ADD" : "UPDATE",
1420	strerror(err));
1421	goto cleanup;
1422	}
1423	LOG_DBG((LOG_SYSDEP, 50, "pf_key_v2_set_spi: done"))log_debug (LOG_SYSDEP, 50, "pf_key_v2_set_spi: done");
1424
1425	return 0;
1426
1427	cleanup:
1428	free(sid);
1429	free(addr);
1430	free(life);
1431	free(key);
1432	if (update)
1433	pf_key_v2_msg_free(update);
1434	if (ret)
1435	pf_key_v2_msg_free(ret);
1436	return -1;
1437	}
1438
1439	static __inline__ int
1440	pf_key_v2_mask_to_bits(u_int32_t mask)
1441	{
1442	u_int32_t hmask = ntohl(mask)(__uint32_t)(__builtin_constant_p(mask) ? (__uint32_t)(((__uint32_t )(mask) & 0xff) << 24 \| ((__uint32_t)(mask) & 0xff00 ) << 8 \| ((__uint32_t)(mask) & 0xff0000) >> 8 \| ((__uint32_t)(mask) & 0xff000000) >> 24) : __swap32md (mask));
1443
1444	return (33 - ffs(~hmask + 1)) % 33;
1445	}
1446
1447	static int
1448	pf_key_v2_mask6_to_bits(u_int8_t *mask)
1449	{
1450	int n;
1451
1452	bit_ffc(mask, 128, &n)do { register bitstr_t __name = (mask); register int __bit, __nbits = (128), __value = -1; for (__bit = 0; __bit < __nbits; ++ __bit) if (!((__name)[((__bit) >> 3)] & (1 << ((__bit)&0x7)))) { __value = __bit; break; } (&n) = __value; } while(0);
1453	return n == -1 ? 128 : n;
1454	}
1455
1456	/*
1457	* Enable/disable a flow.
1458	* XXX Assumes OpenBSD {ADD,DEL}FLOW extensions.
1459	*/
1460	static int
1461	pf_key_v2_flow(struct sockaddr laddr, struct sockaddr lmask,
1462	struct sockaddr raddr, struct sockaddr rmask,
1463	u_int8_t tproto, u_int16_t sport, u_int16_t dport,
1464	u_int8_t spi, u_int8_t proto, struct sockaddr dst,
1465	struct sockaddr *src, int delete, int ingress,
1466	u_int8_t srcid_type, u_int8_t *srcid, int srcid_len,
1467	u_int8_t dstid_type, u_int8_t *dstid, int dstid_len,
1468	struct ipsec_proto *iproto)
1469	{
1470	char laddr_str, lmask_str, raddr_str, rmask_str;
1471
1472	struct sadb_msg msg;
1473	struct sadb_protocol flowtype;
1474	struct sadb_ident *sid = 0;
1475	struct sadb_address *addr = 0;
1476	struct sadb_protocol tprotocol;
1477	struct pf_key_v2_msg flow = 0, ret = 0;
1478	size_t len;
1479	int err;
1480
1481	msg.sadb_msg_type = delete ? SADB_X_DELFLOW13 : SADB_X_ADDFLOW12;
1482	switch (proto) {
1483	case IPSEC_PROTO_IPSEC_ESP3:
1484	msg.sadb_msg_satype = SADB_SATYPE_ESP2;
1485	break;
1486	case IPSEC_PROTO_IPSEC_AH2:
1487	msg.sadb_msg_satype = SADB_SATYPE_AH1;
1488	break;
1489	case IPSEC_PROTO_IPCOMP4:
1490	msg.sadb_msg_satype = SADB_X_SATYPE_IPCOMP9;
1491	break;
1492	default:
1493	log_print("pf_key_v2_flow: invalid proto %d", proto);
1494	goto cleanup;
1495	}
1496	msg.sadb_msg_seq = 0;
1497	flow = pf_key_v2_msg_new(&msg, 0);
1498	if (!flow)
1499	goto cleanup;
1500
1501	if (!delete) {
1502	/* Setup the source ID, if provided. */
1503	if (srcid) {
1504	sid = calloc(
1505	PF_KEY_V2_ROUND(srcid_len + 1)(((srcid_len + 1) + 8 - 1) & ~(8 - 1)) + sizeof *sid,
1506	sizeof(u_int8_t));
1507	if (!sid)
1508	goto cleanup;
1509
1510	sid->sadb_ident_len = ((sizeof *sid) / PF_KEY_V2_CHUNK8)
1511	+ PF_KEY_V2_ROUND(srcid_len + 1)(((srcid_len + 1) + 8 - 1) & ~(8 - 1)) / PF_KEY_V2_CHUNK8;
1512	sid->sadb_ident_exttype = SADB_EXT_IDENTITY_SRC10;
1513	sid->sadb_ident_type = srcid_type;
1514
1515	memcpy(sid + 1, srcid, srcid_len);
1516
1517	if (pf_key_v2_msg_add(flow, (struct sadb_ext *) sid,
1518	PF_KEY_V2_NODE_MALLOCED1) == -1)
1519	goto cleanup;
1520
1521	sid = 0;
1522	}
1523	/* Setup the destination ID, if provided. */
1524	if (dstid) {
1525	sid = calloc(
1526	PF_KEY_V2_ROUND(dstid_len + 1)(((dstid_len + 1) + 8 - 1) & ~(8 - 1)) + sizeof *sid,
1527	sizeof(u_int8_t));
1528	if (!sid)
1529	goto cleanup;
1530
1531	sid->sadb_ident_len = ((sizeof *sid) / PF_KEY_V2_CHUNK8)
1532	+ PF_KEY_V2_ROUND(dstid_len + 1)(((dstid_len + 1) + 8 - 1) & ~(8 - 1)) / PF_KEY_V2_CHUNK8;
1533	sid->sadb_ident_exttype = SADB_EXT_IDENTITY_DST11;
1534	sid->sadb_ident_type = dstid_type;
1535
1536	memcpy(sid + 1, dstid, dstid_len);
1537
1538	if (pf_key_v2_msg_add(flow, (struct sadb_ext *) sid,
1539	PF_KEY_V2_NODE_MALLOCED1) == -1)
1540	goto cleanup;
1541
1542	sid = 0;
1543	}
1544	}
1545	/* Setup the flow type extension. */
1546	bzero(&flowtype, sizeof flowtype);
1547	flowtype.sadb_protocol_exttype = SADB_X_EXT_FLOW_TYPE20;
1548	flowtype.sadb_protocol_len = sizeof flowtype / PF_KEY_V2_CHUNK8;
1549	flowtype.sadb_protocol_direction =
1550	ingress ? IPSP_DIRECTION_IN0x1 : IPSP_DIRECTION_OUT0x2;
1551	flowtype.sadb_protocol_proto = SADB_X_FLOW_TYPE_REQUIRE3;
1552
1553	if (pf_key_v2_msg_add(flow, (struct sadb_ext *)&flowtype, 0) == -1)
1554	goto cleanup;
1555
1556	/*
1557	* Setup the ADDRESS extensions.
1558	*/
1559	len = sizeof *addr + PF_KEY_V2_ROUND(SA_LEN(src))(((((src)->sa_len)) + 8 - 1) & ~(8 - 1));
1560	if (!delete)
1561	{
1562	addr = calloc(1, len);
1563	if (!addr)
1564	goto cleanup;
1565	addr->sadb_address_exttype = SADB_EXT_ADDRESS_DST6;
1566	addr->sadb_address_len = len / PF_KEY_V2_CHUNK8;
1567	addr->sadb_address_reserved = 0;
1568	pf_key_v2_setup_sockaddr(addr + 1, src, dst, 0, ingress);
1569	if (pf_key_v2_msg_add(flow, (struct sadb_ext *) addr,
1570	PF_KEY_V2_NODE_MALLOCED1) == -1)
1571	goto cleanup;
1572	addr = 0;
1573	}
1574	len = sizeof *addr + PF_KEY_V2_ROUND(SA_LEN(laddr))(((((laddr)->sa_len)) + 8 - 1) & ~(8 - 1));
1575	addr = calloc(1, len);
1576	if (!addr)
1577	goto cleanup;
1578	addr->sadb_address_exttype = SADB_X_EXT_SRC_FLOW21;
1579	addr->sadb_address_len = len / PF_KEY_V2_CHUNK8;
1580	addr->sadb_address_reserved = 0;
1581	pf_key_v2_setup_sockaddr(addr + 1, laddr, 0, sport, 0);
1582	if (pf_key_v2_msg_add(flow, (struct sadb_ext *) addr,
1583	PF_KEY_V2_NODE_MALLOCED1) == -1)
1584	goto cleanup;
1585	addr = 0;
1586
1587	addr = calloc(1, len);
1588	if (!addr)
1589	goto cleanup;
1590	addr->sadb_address_exttype = SADB_X_EXT_SRC_MASK17;
1591	addr->sadb_address_len = len / PF_KEY_V2_CHUNK8;
1592	addr->sadb_address_reserved = 0;
1593	pf_key_v2_setup_sockaddr(addr + 1, lmask, 0, sport ? 0xffff : 0, 0);
1594	if (pf_key_v2_msg_add(flow, (struct sadb_ext *) addr,
1595	PF_KEY_V2_NODE_MALLOCED1) == -1)
1596	goto cleanup;
1597	addr = 0;
1598
1599	addr = calloc(1, len);
1600	if (!addr)
1601	goto cleanup;
1602	addr->sadb_address_exttype = SADB_X_EXT_DST_FLOW22;
1603	addr->sadb_address_len = len / PF_KEY_V2_CHUNK8;
1604	addr->sadb_address_reserved = 0;
1605	pf_key_v2_setup_sockaddr(addr + 1, raddr, 0, dport, 0);
1606	if (pf_key_v2_msg_add(flow, (struct sadb_ext *) addr,
1607	PF_KEY_V2_NODE_MALLOCED1) == -1)
1608	goto cleanup;
1609	addr = 0;
1610
1611	addr = calloc(1, len);
1612	if (!addr)
1613	goto cleanup;
1614	addr->sadb_address_exttype = SADB_X_EXT_DST_MASK18;
1615	addr->sadb_address_len = len / PF_KEY_V2_CHUNK8;
1616	addr->sadb_address_reserved = 0;
1617	pf_key_v2_setup_sockaddr(addr + 1, rmask, 0, dport ? 0xffff : 0, 0);
1618	if (pf_key_v2_msg_add(flow, (struct sadb_ext *) addr,
1619	PF_KEY_V2_NODE_MALLOCED1) == -1)
1620	goto cleanup;
1621	addr = 0;
1622
1623	/* Setup the protocol extension. */
1624	bzero(&tprotocol, sizeof tprotocol);
1625	tprotocol.sadb_protocol_exttype = SADB_X_EXT_PROTOCOL19;
1626	tprotocol.sadb_protocol_len = sizeof tprotocol / PF_KEY_V2_CHUNK8;
1627	tprotocol.sadb_protocol_proto = tproto;
1628
1629	if (pf_key_v2_msg_add(flow, (struct sadb_ext *)&tprotocol, 0) == -1)
1630	goto cleanup;
1631
1632	if (sockaddr2text(laddr, &laddr_str, 0))
1633	laddr_str = 0;
1634	if (sockaddr2text(lmask, &lmask_str, 0))
1635	lmask_str = 0;
1636	if (sockaddr2text(raddr, &raddr_str, 0))
1637	raddr_str = 0;
1638	if (sockaddr2text(rmask, &rmask_str, 0))
1639	rmask_str = 0;
1640
1641	LOG_DBG((LOG_SYSDEP, 50,log_debug (LOG_SYSDEP, 50, "pf_key_v2_flow: src %s %s dst %s %s proto %u sport %u dport %u" , laddr_str ? laddr_str : "<??\?>", lmask_str ? lmask_str : "<??\?>", raddr_str ? raddr_str : "<??\?>", rmask_str ? rmask_str : "<??\?>", tproto, (__uint16_t)(__builtin_constant_p (sport) ? (__uint16_t)(((__uint16_t)(sport) & 0xffU) << 8 \| ((__uint16_t)(sport) & 0xff00U) >> 8) : __swap16md (sport)), (__uint16_t)(__builtin_constant_p(dport) ? (__uint16_t )(((__uint16_t)(dport) & 0xffU) << 8 \| ((__uint16_t )(dport) & 0xff00U) >> 8) : __swap16md(dport)))
1642	"pf_key_v2_flow: src %s %s dst %s %s proto %u sport %u dport %u",log_debug (LOG_SYSDEP, 50, "pf_key_v2_flow: src %s %s dst %s %s proto %u sport %u dport %u" , laddr_str ? laddr_str : "<??\?>", lmask_str ? lmask_str : "<??\?>", raddr_str ? raddr_str : "<??\?>", rmask_str ? rmask_str : "<??\?>", tproto, (__uint16_t)(__builtin_constant_p (sport) ? (__uint16_t)(((__uint16_t)(sport) & 0xffU) << 8 \| ((__uint16_t)(sport) & 0xff00U) >> 8) : __swap16md (sport)), (__uint16_t)(__builtin_constant_p(dport) ? (__uint16_t )(((__uint16_t)(dport) & 0xffU) << 8 \| ((__uint16_t )(dport) & 0xff00U) >> 8) : __swap16md(dport)))
1643	laddr_str ? laddr_str : "<??\?>", lmask_str ? lmask_str : "<??\?>",log_debug (LOG_SYSDEP, 50, "pf_key_v2_flow: src %s %s dst %s %s proto %u sport %u dport %u" , laddr_str ? laddr_str : "<??\?>", lmask_str ? lmask_str : "<??\?>", raddr_str ? raddr_str : "<??\?>", rmask_str ? rmask_str : "<??\?>", tproto, (__uint16_t)(__builtin_constant_p (sport) ? (__uint16_t)(((__uint16_t)(sport) & 0xffU) << 8 \| ((__uint16_t)(sport) & 0xff00U) >> 8) : __swap16md (sport)), (__uint16_t)(__builtin_constant_p(dport) ? (__uint16_t )(((__uint16_t)(dport) & 0xffU) << 8 \| ((__uint16_t )(dport) & 0xff00U) >> 8) : __swap16md(dport)))
1644	raddr_str ? raddr_str : "<??\?>", rmask_str ? rmask_str : "<??\?>",log_debug (LOG_SYSDEP, 50, "pf_key_v2_flow: src %s %s dst %s %s proto %u sport %u dport %u" , laddr_str ? laddr_str : "<??\?>", lmask_str ? lmask_str : "<??\?>", raddr_str ? raddr_str : "<??\?>", rmask_str ? rmask_str : "<??\?>", tproto, (__uint16_t)(__builtin_constant_p (sport) ? (__uint16_t)(((__uint16_t)(sport) & 0xffU) << 8 \| ((__uint16_t)(sport) & 0xff00U) >> 8) : __swap16md (sport)), (__uint16_t)(__builtin_constant_p(dport) ? (__uint16_t )(((__uint16_t)(dport) & 0xffU) << 8 \| ((__uint16_t )(dport) & 0xff00U) >> 8) : __swap16md(dport)))
1645	tproto, ntohs(sport), ntohs(dport)))log_debug (LOG_SYSDEP, 50, "pf_key_v2_flow: src %s %s dst %s %s proto %u sport %u dport %u" , laddr_str ? laddr_str : "<??\?>", lmask_str ? lmask_str : "<??\?>", raddr_str ? raddr_str : "<??\?>", rmask_str ? rmask_str : "<??\?>", tproto, (__uint16_t)(__builtin_constant_p (sport) ? (__uint16_t)(((__uint16_t)(sport) & 0xffU) << 8 \| ((__uint16_t)(sport) & 0xff00U) >> 8) : __swap16md (sport)), (__uint16_t)(__builtin_constant_p(dport) ? (__uint16_t )(((__uint16_t)(dport) & 0xffU) << 8 \| ((__uint16_t )(dport) & 0xff00U) >> 8) : __swap16md(dport)));
1646
1647	free(laddr_str);
1648	free(lmask_str);
1649	free(raddr_str);
1650	free(rmask_str);
1651
1652	ret = pf_key_v2_call(flow);
1653	pf_key_v2_msg_free(flow);
1654	flow = 0;
1655	if (!ret)
1656	goto cleanup;
1657	err = ((struct sadb_msg *)TAILQ_FIRST(ret)((ret)->tqh_first)->seg)->sadb_msg_errno;
1658	if (err) {
1659	if (err == ESRCH3) /* These are common and usually
1660	* harmless. */
1661	LOG_DBG((LOG_SYSDEP, 10, "pf_key_v2_flow: %sFLOW: %s",log_debug (LOG_SYSDEP, 10, "pf_key_v2_flow: %sFLOW: %s", delete ? "DEL" : "ADD", strerror(err))
1662	delete ? "DEL" : "ADD", strerror(err)))log_debug (LOG_SYSDEP, 10, "pf_key_v2_flow: %sFLOW: %s", delete ? "DEL" : "ADD", strerror(err));
1663	else
1664	log_print("pf_key_v2_flow: %sFLOW: %s",
1665	delete ? "DEL" : "ADD", strerror(err));
1666	goto cleanup;
1667	}
1668	pf_key_v2_msg_free(ret);
1669
1670	LOG_DBG((LOG_MISC, 50, "pf_key_v2_flow: %sFLOW: done",log_debug (LOG_MISC, 50, "pf_key_v2_flow: %sFLOW: done", delete ? "DEL" : "ADD")
1671	delete ? "DEL" : "ADD"))log_debug (LOG_MISC, 50, "pf_key_v2_flow: %sFLOW: done", delete ? "DEL" : "ADD");
1672
1673	return 0;
1674
1675	cleanup:
1676	free(sid);
1677	free(addr);
1678	if (flow)
1679	pf_key_v2_msg_free(flow);
1680	if (ret)
1681	pf_key_v2_msg_free(ret);
1682	return -1;
1683	}
1684
1685	static u_int8_t *
1686	pf_key_v2_convert_id(u_int8_t id, int idlen, size_t reslen, int *idtype)
1687	{
1688	u_int8_t addr, res = 0;
1689	char addrbuf[ADDRESS_MAXsizeof "ffff:ffff:ffff:ffff:ffff:ffff:255.255.255.255" + 5];
1690
1691	switch (id[0]) {
1692	case IPSEC_ID_FQDN2:
1693	res = calloc(idlen - ISAKMP_ID_DATA_OFF8 + ISAKMP_GEN_SZ4,
1694	sizeof(u_int8_t));
1695	if (!res)
1696	return 0;
1697
1698	*reslen = idlen - ISAKMP_ID_DATA_OFF8 + ISAKMP_GEN_SZ4;
1699	memcpy(res, id + ISAKMP_ID_DATA_OFF8 - ISAKMP_GEN_SZ4, *reslen);
1700	*idtype = SADB_IDENTTYPE_FQDN2;
1701	LOG_DBG((LOG_SYSDEP, 40, "pf_key_v2_convert_id: FQDN %.s",log_debug (LOG_SYSDEP, 40, "pf_key_v2_convert_id: FQDN %.s", (int) *reslen, res)
1702	(int) reslen, res))log_debug (LOG_SYSDEP, 40, "pf_key_v2_convert_id: FQDN %.s", (int) *reslen, res);
1703	return res;
1704
1705	case IPSEC_ID_USER_FQDN3:
1706	res = calloc(idlen - ISAKMP_ID_DATA_OFF8 + ISAKMP_GEN_SZ4,
1707	sizeof(u_int8_t));
1708	if (!res)
1709	return 0;
1710
1711	*reslen = idlen - ISAKMP_ID_DATA_OFF8 + ISAKMP_GEN_SZ4;
1712	memcpy(res, id + ISAKMP_ID_DATA_OFF8 - ISAKMP_GEN_SZ4, *reslen);
1713	*idtype = SADB_IDENTTYPE_USERFQDN3;
1714	LOG_DBG((LOG_SYSDEP, 40, "pf_key_v2_convert_id: UFQDN %.s",log_debug (LOG_SYSDEP, 40, "pf_key_v2_convert_id: UFQDN %.s" , (int) *reslen, res)
1715	(int) reslen, res))log_debug (LOG_SYSDEP, 40, "pf_key_v2_convert_id: UFQDN %.s" , (int) *reslen, res);
1716	return res;
1717
1718	case IPSEC_ID_IPV4_ADDR1:
1719	if (inet_ntop(AF_INET2, id + ISAKMP_ID_DATA_OFF8 - ISAKMP_GEN_SZ4,
1720	addrbuf, ADDRESS_MAXsizeof "ffff:ffff:ffff:ffff:ffff:ffff:255.255.255.255") == NULL((void *)0))
1721	return 0;
1722	*reslen = strlen(addrbuf) + 3;
1723	strlcat(addrbuf, "/32", ADDRESS_MAXsizeof "ffff:ffff:ffff:ffff:ffff:ffff:255.255.255.255" + 5);
1724	res = (u_int8_t *) strdup(addrbuf);
1725	if (!res)
1726	return 0;
1727	*idtype = SADB_IDENTTYPE_PREFIX1;
1728	LOG_DBG((LOG_SYSDEP, 40, "pf_key_v2_convert_id: "log_debug (LOG_SYSDEP, 40, "pf_key_v2_convert_id: " "IPv4 address %s" , res)
1729	"IPv4 address %s", res))log_debug (LOG_SYSDEP, 40, "pf_key_v2_convert_id: " "IPv4 address %s" , res);
1730	return res;
1731
1732	case IPSEC_ID_IPV6_ADDR5:
1733	if (inet_ntop(AF_INET624,
1734	id + ISAKMP_ID_DATA_OFF8 - ISAKMP_GEN_SZ4,
1735	addrbuf, ADDRESS_MAXsizeof "ffff:ffff:ffff:ffff:ffff:ffff:255.255.255.255") == NULL((void *)0))
1736	return 0;
1737	*reslen = strlen(addrbuf) + 4;
1738	strlcat(addrbuf, "/128", ADDRESS_MAXsizeof "ffff:ffff:ffff:ffff:ffff:ffff:255.255.255.255" + 5);
1739	res = (u_int8_t *) strdup(addrbuf);
1740	if (!res)
1741	return 0;
1742	LOG_DBG((LOG_SYSDEP, 40, "pf_key_v2_convert_id: "log_debug (LOG_SYSDEP, 40, "pf_key_v2_convert_id: " "IPv6 address %s" , res)
1743	"IPv6 address %s", res))log_debug (LOG_SYSDEP, 40, "pf_key_v2_convert_id: " "IPv6 address %s" , res);
1744	*idtype = SADB_IDENTTYPE_PREFIX1;
1745	return res;
1746
1747	case IPSEC_ID_IPV4_ADDR_SUBNET4: /* XXX PREFIX */
1748	addr = id + ISAKMP_ID_DATA_OFF8 - ISAKMP_GEN_SZ4;
1749	if (inet_ntop(AF_INET2, addr, addrbuf, ADDRESS_MAXsizeof "ffff:ffff:ffff:ffff:ffff:ffff:255.255.255.255") == NULL((void *)0))
1750	return 0;
1751	snprintf(addrbuf + strlen(addrbuf),
1752	ADDRESS_MAXsizeof "ffff:ffff:ffff:ffff:ffff:ffff:255.255.255.255" - strlen(addrbuf), "/%d",
1753	pf_key_v2_mask_to_bits((u_int32_t )(addr +
1754	sizeof(struct in_addr))));
1755	*reslen = strlen(addrbuf);
1756	res = (u_int8_t *) strdup(addrbuf);
1757	if (!res)
1758	return 0;
1759	*idtype = SADB_IDENTTYPE_PREFIX1;
1760	LOG_DBG((LOG_SYSDEP, 40, "pf_key_v2_convert_id: "log_debug (LOG_SYSDEP, 40, "pf_key_v2_convert_id: " "IPv4 subnet %s" , res)
1761	"IPv4 subnet %s", res))log_debug (LOG_SYSDEP, 40, "pf_key_v2_convert_id: " "IPv4 subnet %s" , res);
1762	return res;
1763
1764	case IPSEC_ID_IPV6_ADDR_SUBNET6: /* XXX PREFIX */
1765	addr = id + ISAKMP_ID_DATA_OFF8 - ISAKMP_GEN_SZ4;
1766	if (inet_ntop(AF_INET624, addr, addrbuf, ADDRESS_MAXsizeof "ffff:ffff:ffff:ffff:ffff:ffff:255.255.255.255") == NULL((void *)0))
1767	return 0;
1768	snprintf(addrbuf + strlen(addrbuf),
1769	ADDRESS_MAXsizeof "ffff:ffff:ffff:ffff:ffff:ffff:255.255.255.255" - strlen(addrbuf), "/%d",
1770	pf_key_v2_mask6_to_bits(addr +
1771	sizeof(struct in6_addr)));
1772	*reslen = strlen(addrbuf);
1773	res = (u_int8_t *) strdup(addrbuf);
1774	if (!res)
1775	return 0;
1776	LOG_DBG((LOG_SYSDEP, 40, "pf_key_v2_convert_id: "log_debug (LOG_SYSDEP, 40, "pf_key_v2_convert_id: " "IPv6 subnet %s" , res)
1777	"IPv6 subnet %s", res))log_debug (LOG_SYSDEP, 40, "pf_key_v2_convert_id: " "IPv6 subnet %s" , res);
1778	*idtype = SADB_IDENTTYPE_PREFIX1;
1779	return res;
1780
1781	case IPSEC_ID_IPV4_RANGE7:
1782	case IPSEC_ID_IPV6_RANGE8:
1783	case IPSEC_ID_DER_ASN1_DN9:
1784	case IPSEC_ID_DER_ASN1_GN10:
1785	case IPSEC_ID_KEY_ID11:
1786	/* XXX Not implemented yet. */
1787	return 0;
1788	}
1789
1790	return 0;
1791	}
1792
1793	/* Enable a flow given an SA. */
1794	int
1795	pf_key_v2_enable_sa(struct sa sa, struct sa isakmp_sa)
1796	{
1797	struct ipsec_sa *isa = sa->data;
1798	struct sockaddr dst, src;
1799	int error;
1800	struct proto *proto = TAILQ_FIRST(&sa->protos)((&sa->protos)->tqh_first);
1801	int sidtype = 0, didtype = 0;
1802	size_t sidlen = 0, didlen = 0;
1803	u_int8_t sid = 0, did = 0;
1804
1805	sa->transport->vtbl->get_dst(sa->transport, &dst);
1806	sa->transport->vtbl->get_src(sa->transport, &src);
1807
1808	if (isakmp_sa->id_i) {
1809	if (isakmp_sa->initiator)
1810	sid = pf_key_v2_convert_id(isakmp_sa->id_i,
1811	isakmp_sa->id_i_len, &sidlen, &sidtype);
1812	else
1813	did = pf_key_v2_convert_id(isakmp_sa->id_i,
1814	isakmp_sa->id_i_len, &didlen, &didtype);
1815	}
1816	if (isakmp_sa->id_r) {
1817	if (isakmp_sa->initiator)
1818	did = pf_key_v2_convert_id(isakmp_sa->id_r,
1819	isakmp_sa->id_r_len, &didlen, &didtype);
1820	else
1821	sid = pf_key_v2_convert_id(isakmp_sa->id_r,
1822	isakmp_sa->id_r_len, &sidlen, &sidtype);
1823	}
1824
1825	error = pf_key_v2_flow(isa->src_net, isa->src_mask, isa->dst_net,
1826	isa->dst_mask, isa->tproto, isa->sport, isa->dport, proto->spi[0],
1827	proto->proto, dst, src, 0, 0, sidtype, sid, sidlen, didtype, did,
1828	didlen, proto->data);
1829	if (error)
1830	goto cleanup;
1831
1832	error = pf_key_v2_flow(isa->dst_net, isa->dst_mask, isa->src_net,
1833	isa->src_mask, isa->tproto, isa->dport, isa->sport, proto->spi[1],
1834	proto->proto, src, dst, 0, 1, sidtype, sid, sidlen, didtype, did,
1835	didlen, proto->data);
1836
1837	cleanup:
1838	free(sid);
1839	free(did);
1840
1841	return error;
1842	}
1843
1844	/* Increase reference count of refcounted sections. */
1845	static int
1846	pf_key_v2_conf_refinc(int af, char *section)
1847	{
1848	char conn[22];
1849	int num;
1850
1851	if (!section)
1852	return 0;
1853
1854	num = conf_get_num(section, "Refcount", 0);
1855	if (num == 0)
1856	return 0;
1857
1858	snprintf(conn, sizeof conn, "%d", num + 1);
1859	conf_set(af, section, "Refcount", conn, 1, 0);
1860	return 0;
1861	}
1862
1863	/*
1864	* Return 0 if the section didn't exist or was removed, non-zero otherwise.
1865	* Don't touch non-refcounted (statically defined) sections.
1866	*/
1867	static int
1868	pf_key_v2_conf_refhandle(int af, char *section)
1869	{
1870	char conn[22];
1871	int num;
1872
1873	if (!section)
1874	return 0;
1875
1876	num = conf_get_num(section, "Refcount", 0);
1877	if (num == 1) {
1878	conf_remove_section(af, section);
1879	num--;
1880	} else if (num != 0) {
1881	snprintf(conn, sizeof conn, "%d", num - 1);
1882	conf_set(af, section, "Refcount", conn, 1, 0);
1883	}
1884	return num;
1885	}
1886
1887	/* Remove all dynamically-established configuration entries. */
1888	static int
1889	pf_key_v2_remove_conf(char *section)
1890	{
1891	char ikepeer, localid, remoteid, configname;
1892	struct conf_list_node *attr;
1893	struct conf_list *attrs;
1894	int af;
1895
1896	if (!section)
1897	return 0;
1898
1899	if (!conf_get_str(section, "Phase"))
1900	return 0;
1901
1902	/* Only remove dynamically-established entries. */
1903	attrs = conf_get_list(section, "Flags");
1904	if (attrs) {
1905	for (attr = TAILQ_FIRST(&attrs->fields)((&attrs->fields)->tqh_first); attr;
1906	attr = TAILQ_NEXT(attr, link)((attr)->link.tqe_next))
1907	if (!strcasecmp(attr->field, "__ondemand"))
1908	goto passed;
1909
1910	conf_free_list(attrs);
1911	}
1912	return 0;
1913
1914	passed:
1915	conf_free_list(attrs);
1916
1917	af = conf_begin();
1918
1919	configname = conf_get_str(section, "Configuration");
1920	pf_key_v2_conf_refhandle(af, configname);
1921
1922	/* These are the Phase 2 Local/Remote IDs. */
1923	localid = conf_get_str(section, "Local-ID");
1924	pf_key_v2_conf_refhandle(af, localid);
1925
1926	remoteid = conf_get_str(section, "Remote-ID");
1927	pf_key_v2_conf_refhandle(af, remoteid);
1928
1929	ikepeer = conf_get_str(section, "ISAKMP-peer");
1930
1931	pf_key_v2_conf_refhandle(af, section);
1932
1933	if (ikepeer) {
1934	remoteid = conf_get_str(ikepeer, "Remote-ID");
1935	localid = conf_get_str(ikepeer, "ID");
1936	configname = conf_get_str(ikepeer, "Configuration");
1937
1938	pf_key_v2_conf_refhandle(af, ikepeer);
1939	pf_key_v2_conf_refhandle(af, configname);
1940
1941	/* Phase 1 IDs */
1942	pf_key_v2_conf_refhandle(af, localid);
1943	pf_key_v2_conf_refhandle(af, remoteid);
1944	}
1945	conf_end(af, 1);
1946	return 0;
1947	}
1948
1949	/* Disable a flow given a SA. */
1950	int
1951	pf_key_v2_disable_sa(struct sa *sa, int incoming)
1952	{
1953	struct ipsec_sa *isa = sa->data;
1954	struct sockaddr dst, src;
1955	struct proto *proto = TAILQ_FIRST(&sa->protos)((&sa->protos)->tqh_first);
1956
1957	sa->transport->vtbl->get_dst(sa->transport, &dst);
1958	sa->transport->vtbl->get_src(sa->transport, &src);
1959
1960	if (!incoming)
1961	return pf_key_v2_flow(isa->src_net, isa->src_mask,
1962	isa->dst_net, isa->dst_mask, isa->tproto, isa->sport,
1963	isa->dport, proto->spi[0], proto->proto, src, dst, 1, 0,
1964	0, 0, 0, 0, 0, 0, proto->data);
1965	else {
1966	return pf_key_v2_flow(isa->dst_net, isa->dst_mask,
1967	isa->src_net, isa->src_mask, isa->tproto, isa->dport,
1968	isa->sport, proto->spi[1], proto->proto, src, dst, 1, 1,
1969	0, 0, 0, 0, 0, 0, proto->data);
1970	}
1971	}
1972
1973	/*
1974	* Delete the IPsec SA represented by the INCOMING direction in protocol PROTO
1975	* of the IKE security association SA. Also delete potential flows tied to it.
1976	*/
1977	int
1978	pf_key_v2_delete_spi(struct sa sa, struct proto proto, int incoming)
1979	{
1980	struct sadb_msg msg;
1981	struct sadb_sa ssa;
1982	struct sadb_address *addr = 0;
1983	struct sockaddr *saddr;
1984	int len, err;
1985	struct pf_key_v2_msg delete = 0, ret = 0;
1986
1987	/* If it's not an established SA, don't proceed. */
1988	if (!(sa->flags & SA_FLAG_READY0x01))
1989	return 0;
1990
1991	if (sa->name && !(sa->flags & SA_FLAG_REPLACED0x08)) {
1992	LOG_DBG((LOG_SYSDEP, 50,log_debug (LOG_SYSDEP, 50, "pf_key_v2_delete_spi: removing configuration %s" , sa->name)
1993	"pf_key_v2_delete_spi: removing configuration %s",log_debug (LOG_SYSDEP, 50, "pf_key_v2_delete_spi: removing configuration %s" , sa->name)
1994	sa->name))log_debug (LOG_SYSDEP, 50, "pf_key_v2_delete_spi: removing configuration %s" , sa->name);
1995	pf_key_v2_remove_conf(sa->name);
1996	}
1997	msg.sadb_msg_type = SADB_DELETE4;
1998	switch (proto->proto) {
1999	case IPSEC_PROTO_IPSEC_ESP3:
2000	msg.sadb_msg_satype = SADB_SATYPE_ESP2;
2001	break;
2002	case IPSEC_PROTO_IPSEC_AH2:
2003	msg.sadb_msg_satype = SADB_SATYPE_AH1;
2004	break;
2005	case IPSEC_PROTO_IPCOMP4:
2006	msg.sadb_msg_satype = SADB_X_SATYPE_IPCOMP9;
2007	break;
2008	default:
2009	log_print("pf_key_v2_delete_spi: invalid proto %d",
2010	proto->proto);
2011	goto cleanup;
2012	}
2013	msg.sadb_msg_seq = 0;
2014	delete = pf_key_v2_msg_new(&msg, 0);
2015	if (!delete)
2016	goto cleanup;
2017
2018	/* Setup the SA extension. */
2019	ssa.sadb_sa_exttype = SADB_EXT_SA1;
2020	ssa.sadb_sa_len = sizeof ssa / PF_KEY_V2_CHUNK8;
2021	memcpy(&ssa.sadb_sa_spi, proto->spi[incoming], sizeof ssa.sadb_sa_spi);
2022	ssa.sadb_sa_replay = 0;
2023	ssa.sadb_sa_state = 0;
2024	ssa.sadb_sa_auth = 0;
2025	ssa.sadb_sa_encrypt = 0;
2026	ssa.sadb_sa_flags = 0;
2027	if (pf_key_v2_msg_add(delete, (struct sadb_ext *)&ssa, 0) == -1)
2028	goto cleanup;
2029
2030	/*
2031	* Setup the ADDRESS extensions.
2032	*/
2033	if (incoming)
2034	sa->transport->vtbl->get_dst(sa->transport, &saddr);
2035	else
2036	sa->transport->vtbl->get_src(sa->transport, &saddr);
2037	len = sizeof *addr + PF_KEY_V2_ROUND(SA_LEN(saddr))(((((saddr)->sa_len)) + 8 - 1) & ~(8 - 1));
2038	addr = calloc(1, len);
2039	if (!addr)
2040	goto cleanup;
2041	addr->sadb_address_exttype = SADB_EXT_ADDRESS_SRC5;
2042	addr->sadb_address_len = len / PF_KEY_V2_CHUNK8;
2043	addr->sadb_address_reserved = 0;
2044	memcpy(addr + 1, saddr, SA_LEN(saddr)((saddr)->sa_len));
2045	switch (saddr->sa_family) {
2046	case AF_INET2:
2047	((struct sockaddr_in *) (addr + 1))->sin_port = 0;
2048	break;
2049	case AF_INET624:
2050	((struct sockaddr_in6 *) (addr + 1))->sin6_port = 0;
2051	break;
2052	}
2053	if (pf_key_v2_msg_add(delete, (struct sadb_ext *) addr,
2054	PF_KEY_V2_NODE_MALLOCED1) == -1)
2055	goto cleanup;
2056	addr = 0;
2057
2058	if (incoming)
2059	sa->transport->vtbl->get_src(sa->transport, &saddr);
2060	else
2061	sa->transport->vtbl->get_dst(sa->transport, &saddr);
2062	len = sizeof *addr + PF_KEY_V2_ROUND(SA_LEN(saddr))(((((saddr)->sa_len)) + 8 - 1) & ~(8 - 1));
2063	addr = calloc(1, len);
2064	if (!addr)
2065	goto cleanup;
2066	addr->sadb_address_exttype = SADB_EXT_ADDRESS_DST6;
2067	addr->sadb_address_len = len / PF_KEY_V2_CHUNK8;
2068	addr->sadb_address_reserved = 0;
2069	memcpy(addr + 1, saddr, SA_LEN(saddr)((saddr)->sa_len));
2070	switch (saddr->sa_family) {
2071	case AF_INET2:
2072	((struct sockaddr_in *) (addr + 1))->sin_port = 0;
2073	break;
2074	case AF_INET624:
2075	((struct sockaddr_in6 *) (addr + 1))->sin6_port = 0;
2076	break;
2077	}
2078	if (pf_key_v2_msg_add(delete, (struct sadb_ext *) addr,
2079	PF_KEY_V2_NODE_MALLOCED1) == -1)
2080	goto cleanup;
2081	addr = 0;
2082
2083	ret = pf_key_v2_call(delete);
2084	pf_key_v2_msg_free(delete);
2085	delete = 0;
2086	if (!ret)
2087	goto cleanup;
2088	err = ((struct sadb_msg *)TAILQ_FIRST(ret)((ret)->tqh_first)->seg)->sadb_msg_errno;
2089	if (err) {
2090	LOG_DBG((LOG_SYSDEP, 10, "pf_key_v2_delete_spi: DELETE: %s",log_debug (LOG_SYSDEP, 10, "pf_key_v2_delete_spi: DELETE: %s" , strerror(err))
2091	strerror(err)))log_debug (LOG_SYSDEP, 10, "pf_key_v2_delete_spi: DELETE: %s" , strerror(err));
2092	goto cleanup;
2093	}
2094	pf_key_v2_msg_free(ret);
2095
2096	LOG_DBG((LOG_SYSDEP, 50, "pf_key_v2_delete_spi: done"))log_debug (LOG_SYSDEP, 50, "pf_key_v2_delete_spi: done");
2097
2098	return 0;
2099
2100	cleanup:
2101	free(addr);
2102	if (delete)
2103	pf_key_v2_msg_free(delete);
2104	if (ret)
2105	pf_key_v2_msg_free(ret);
2106	return -1;
2107	}
2108
2109	static void
2110	pf_key_v2_stayalive(struct exchange exchange, void vconn, int fail)
2111	{
2112	char *conn = vconn;
2113	struct sa *sa;
2114
2115	/* XXX What if it is phase 1 ? */
2116	sa = sa_lookup_by_name(conn, 2);
2117	if (sa)
2118	sa->flags \|= SA_FLAG_STAYALIVE0x02;
2119
2120	/*
2121	* Remove failed configuration entry -- call twice because it is
2122	* created with a Refcount of 2.
2123	*/
2124	if (fail && (!exchange \|\| exchange->name)) {
2125	pf_key_v2_remove_conf(conn);
2126	pf_key_v2_remove_conf(conn);
2127	}
2128	free(conn);
2129	}
2130
2131	/* Check if a connection CONN exists, otherwise establish it. */
2132	void
2133	pf_key_v2_connection_check(char *conn)
2134	{
2135	if (!sa_lookup_by_name(conn, 2)) {
2136	LOG_DBG((LOG_SYSDEP, 70,log_debug (LOG_SYSDEP, 70, "pf_key_v2_connection_check: SA for %s missing" , conn)
2137	"pf_key_v2_connection_check: SA for %s missing", conn))log_debug (LOG_SYSDEP, 70, "pf_key_v2_connection_check: SA for %s missing" , conn);
2138	exchange_establish(conn, pf_key_v2_stayalive, conn, 0);
2139	} else {
2140	LOG_DBG((LOG_SYSDEP, 70, "pf_key_v2_connection_check: "log_debug (LOG_SYSDEP, 70, "pf_key_v2_connection_check: " "SA for %s exists" , conn)
2141	"SA for %s exists", conn))log_debug (LOG_SYSDEP, 70, "pf_key_v2_connection_check: " "SA for %s exists" , conn);
2142	free(conn);
2143	}
2144	}
2145
2146	/* Handle a PF_KEY lifetime expiration message PMSG. */
2147	static void
2148	pf_key_v2_expire(struct pf_key_v2_msg *pmsg)
2149	{
2150	struct sadb_msg *msg;
2151	struct sadb_sa *ssa;
2152	struct sadb_address *dst;
2153	struct sockaddr *dstaddr;
2154	struct sadb_lifetime life, lifecurrent;
2155	struct sa *sa;
2156	struct pf_key_v2_node lifenode, ext;
2157	char *dst_str;
2158
2159	msg = (struct sadb_msg *)TAILQ_FIRST(pmsg)((pmsg)->tqh_first)->seg;
2160	ext = pf_key_v2_find_ext(pmsg, SADB_EXT_SA1);
2161	if (!ext) {
2162	log_print("pf_key_v2_expire: no SA extension found");
2163	return;
2164	}
2165	ssa = ext->seg;
2166	ext = pf_key_v2_find_ext(pmsg, SADB_EXT_ADDRESS_DST6);
2167	if (!ext) {
2168	log_print("pf_key_v2_expire: "
2169	"no destination address extension found");
2170	return;
2171	}
2172	dst = ext->seg;
2173	dstaddr = (struct sockaddr *) (dst + 1);
2174	lifenode = pf_key_v2_find_ext(pmsg, SADB_EXT_LIFETIME_HARD3);
2175	if (!lifenode)
2176	lifenode = pf_key_v2_find_ext(pmsg, SADB_EXT_LIFETIME_SOFT4);
2177	if (!lifenode) {
2178	log_print("pf_key_v2_expire: no lifetime extension found");
2179	return;
2180	}
2181	life = lifenode->seg;
2182
2183	lifenode = pf_key_v2_find_ext(pmsg, SADB_EXT_LIFETIME_CURRENT2);
2184	if (!lifenode) {
2185	log_print("pf_key_v2_expire: "
2186	"no current lifetime extension found");
2187	return;
2188	}
2189	lifecurrent = lifenode->seg;
2190
2191	if (sockaddr2text(dstaddr, &dst_str, 0))
2192	dst_str = 0;
2193
2194	LOG_DBG((LOG_SYSDEP, 20, "pf_key_v2_expire: "log_debug (LOG_SYSDEP, 20, "pf_key_v2_expire: " "%s dst %s SPI %x sproto %d" , life->sadb_lifetime_exttype == 4 ? "SOFT" : "HARD", dst_str ? dst_str : "<unknown>", (__uint32_t)(__builtin_constant_p (ssa->sadb_sa_spi) ? (__uint32_t)(((__uint32_t)(ssa->sadb_sa_spi ) & 0xff) << 24 \| ((__uint32_t)(ssa->sadb_sa_spi ) & 0xff00) << 8 \| ((__uint32_t)(ssa->sadb_sa_spi ) & 0xff0000) >> 8 \| ((__uint32_t)(ssa->sadb_sa_spi ) & 0xff000000) >> 24) : __swap32md(ssa->sadb_sa_spi )), msg->sadb_msg_satype)
2195	"%s dst %s SPI %x sproto %d",log_debug (LOG_SYSDEP, 20, "pf_key_v2_expire: " "%s dst %s SPI %x sproto %d" , life->sadb_lifetime_exttype == 4 ? "SOFT" : "HARD", dst_str ? dst_str : "<unknown>", (__uint32_t)(__builtin_constant_p (ssa->sadb_sa_spi) ? (__uint32_t)(((__uint32_t)(ssa->sadb_sa_spi ) & 0xff) << 24 \| ((__uint32_t)(ssa->sadb_sa_spi ) & 0xff00) << 8 \| ((__uint32_t)(ssa->sadb_sa_spi ) & 0xff0000) >> 8 \| ((__uint32_t)(ssa->sadb_sa_spi ) & 0xff000000) >> 24) : __swap32md(ssa->sadb_sa_spi )), msg->sadb_msg_satype)
2196	life->sadb_lifetime_exttype == SADB_EXT_LIFETIME_SOFT ? "SOFT"log_debug (LOG_SYSDEP, 20, "pf_key_v2_expire: " "%s dst %s SPI %x sproto %d" , life->sadb_lifetime_exttype == 4 ? "SOFT" : "HARD", dst_str ? dst_str : "<unknown>", (__uint32_t)(__builtin_constant_p (ssa->sadb_sa_spi) ? (__uint32_t)(((__uint32_t)(ssa->sadb_sa_spi ) & 0xff) << 24 \| ((__uint32_t)(ssa->sadb_sa_spi ) & 0xff00) << 8 \| ((__uint32_t)(ssa->sadb_sa_spi ) & 0xff0000) >> 8 \| ((__uint32_t)(ssa->sadb_sa_spi ) & 0xff000000) >> 24) : __swap32md(ssa->sadb_sa_spi )), msg->sadb_msg_satype)
2197	: "HARD", dst_str ? dst_str : "<unknown>",log_debug (LOG_SYSDEP, 20, "pf_key_v2_expire: " "%s dst %s SPI %x sproto %d" , life->sadb_lifetime_exttype == 4 ? "SOFT" : "HARD", dst_str ? dst_str : "<unknown>", (__uint32_t)(__builtin_constant_p (ssa->sadb_sa_spi) ? (__uint32_t)(((__uint32_t)(ssa->sadb_sa_spi ) & 0xff) << 24 \| ((__uint32_t)(ssa->sadb_sa_spi ) & 0xff00) << 8 \| ((__uint32_t)(ssa->sadb_sa_spi ) & 0xff0000) >> 8 \| ((__uint32_t)(ssa->sadb_sa_spi ) & 0xff000000) >> 24) : __swap32md(ssa->sadb_sa_spi )), msg->sadb_msg_satype)
2198	ntohl(ssa->sadb_sa_spi), msg->sadb_msg_satype))log_debug (LOG_SYSDEP, 20, "pf_key_v2_expire: " "%s dst %s SPI %x sproto %d" , life->sadb_lifetime_exttype == 4 ? "SOFT" : "HARD", dst_str ? dst_str : "<unknown>", (__uint32_t)(__builtin_constant_p (ssa->sadb_sa_spi) ? (__uint32_t)(((__uint32_t)(ssa->sadb_sa_spi ) & 0xff) << 24 \| ((__uint32_t)(ssa->sadb_sa_spi ) & 0xff00) << 8 \| ((__uint32_t)(ssa->sadb_sa_spi ) & 0xff0000) >> 8 \| ((__uint32_t)(ssa->sadb_sa_spi ) & 0xff000000) >> 24) : __swap32md(ssa->sadb_sa_spi )), msg->sadb_msg_satype);
2199
2200	free(dst_str);
2201
2202	/*
2203	* Find the IPsec SA. The IPsec stack has two SAs for every IKE SA,
2204	* one outgoing and one incoming, we regard expirations for any of
2205	* them as an expiration of the full IKE SA. Likewise, in
2206	* protection suites consisting of more than one protocol, any
2207	* expired individual IPsec stack SA will be seen as an expiration
2208	* of the full suite.
2209	*/
2210	switch (msg->sadb_msg_satype) {
2211	case SADB_SATYPE_ESP2:
2212	sa = ipsec_sa_lookup(dstaddr, ssa->sadb_sa_spi,
2213	IPSEC_PROTO_IPSEC_ESP3);
2214	break;
2215
2216	case SADB_SATYPE_AH1:
2217	sa = ipsec_sa_lookup(dstaddr, ssa->sadb_sa_spi,
2218	IPSEC_PROTO_IPSEC_AH2);
2219	break;
2220
2221	case SADB_X_SATYPE_IPCOMP9:
2222	sa = ipsec_sa_lookup(dstaddr, ssa->sadb_sa_spi,
2223	IPSEC_PROTO_IPCOMP4);
2224	break;
2225
2226	default:
2227	/* XXX Log? */
2228	sa = 0;
2229	break;
2230	}
2231
2232	/* If the SA is already gone, don't do anything. */
2233	if (!sa)
2234	return;
2235
2236	/*
2237	* If we got a notification, try to renegotiate the SA -- unless of
2238	* course it has already been replaced by another.
2239	* Also, ignore SAs that were not dynamically established, or that
2240	* did not see any use.
2241	*/
2242	if (!(sa->flags & SA_FLAG_REPLACED0x08) &&
2243	(sa->flags & SA_FLAG_ONDEMAND0x04) &&
2244	lifecurrent->sadb_lifetime_bytes)
2245	exchange_establish(sa->name, 0, 0, 0);
2246
2247	if (life->sadb_lifetime_exttype == SADB_EXT_LIFETIME_HARD3) {
2248	/* Remove the old SA, it isn't useful anymore. */
2249	sa_free(sa);
2250	}
2251	}
2252
2253	static int
2254	mask4len(const struct sockaddr_in *mask)
2255	{
2256	int len;
2257	u_int32_t m;
2258
2259	len = 0;
2260	for (m = 0x80000000; m & ntohl(mask->sin_addr.s_addr)(__uint32_t)(__builtin_constant_p(mask->sin_addr.s_addr) ? (__uint32_t)(((__uint32_t)(mask->sin_addr.s_addr) & 0xff ) << 24 \| ((__uint32_t)(mask->sin_addr.s_addr) & 0xff00) << 8 \| ((__uint32_t)(mask->sin_addr.s_addr) & 0xff0000) >> 8 \| ((__uint32_t)(mask->sin_addr .s_addr) & 0xff000000) >> 24) : __swap32md(mask-> sin_addr.s_addr)); m >>= 1)
2261	len++;
2262	if (len == 32)
2263	len = -1;
2264	return len;
2265	}
2266
2267	#ifndef s6_addr8__u6_addr.__u6_addr8
2268	#define s6_addr8__u6_addr.__u6_addr8 __u6_addr.__u6_addr8
2269	#endif
2270
2271	static int
2272	mask6len(const struct sockaddr_in6 *mask)
2273	{
2274	int i, len;
2275	u_int8_t m;
2276
2277	len = 0;
2278	for (i = 0, m = 0; i < 16 && !m; i++)
2279	for (m = 0x80; m & mask->sin6_addr.s6_addr8__u6_addr.__u6_addr8[i]; m >>= 1)
2280	len++;
2281	if (len == 128)
2282	len = -1;
2283	return len;
2284	}
2285
2286	static int
2287	phase2id(char str, size_t size, const char side, const char *sflow,
2288	int masklen, u_int8_t proto, u_int16_t port)
2289	{
2290	char smasklen[10], sproto[10], sport[10];
2291
2292	smasklen[0] = sproto[0] = sport[0] = 0;
2293	if (masklen != -1)
2294	snprintf(smasklen, sizeof smasklen, "/%d", masklen);
2295	if (proto)
2296	snprintf(sproto, sizeof sproto, "=%u", proto);
2297	if (port)
2298	snprintf(sport, sizeof sport, ":%u", ntohs(port)(__uint16_t)(__builtin_constant_p(port) ? (__uint16_t)(((__uint16_t )(port) & 0xffU) << 8 \| ((__uint16_t)(port) & 0xff00U ) >> 8) : __swap16md(port)));
2299
2300	return snprintf(str, size, "%s-%s%s%s%s", side, sflow, smasklen,
2301	sproto, sport);
2302	}
2303
2304	/* Handle a PF_KEY SA ACQUIRE message PMSG. */
2305	static void
2306	pf_key_v2_acquire(struct pf_key_v2_msg *pmsg)
2307	{
2308	struct sadb_msg *msg, askpolicy_msg;
2309	struct pf_key_v2_msg askpolicy = 0, ret = 0;
2310	struct sadb_x_policy policy;
2311	struct sadb_address dst = 0, src = 0;
2312	struct sockaddr dstaddr, srcaddr = 0;
2313	struct sadb_comb *scmb = 0;
2314	struct sadb_prop *sprp = 0;
2315	struct sadb_ident srcident = 0, dstident = 0;
2316	char dstbuf[ADDRESS_MAXsizeof "ffff:ffff:ffff:ffff:ffff:ffff:255.255.255.255"], srcbuf[ADDRESS_MAXsizeof "ffff:ffff:ffff:ffff:ffff:ffff:255.255.255.255"], *peer = 0;
2317	char confname[120], *conn = 0;
2318	char srcid = 0, dstid = 0, *prefstring = 0;
2319	int slen, af, afamily, masklen;
2320	struct sockaddr smask, sflow, dmask, dflow;
2321	struct sadb_protocol *sproto;
2322	char ssflow[ADDRESS_MAXsizeof "ffff:ffff:ffff:ffff:ffff:ffff:255.255.255.255"], sdflow[ADDRESS_MAXsizeof "ffff:ffff:ffff:ffff:ffff:ffff:255.255.255.255"];
2323	char sdmask[ADDRESS_MAXsizeof "ffff:ffff:ffff:ffff:ffff:ffff:255.255.255.255"], ssmask[ADDRESS_MAXsizeof "ffff:ffff:ffff:ffff:ffff:ffff:255.255.255.255"];
2324	int dmasklen, smasklen;
2325	char sidtype = 0, didtype = 0;
2326	char lname[100], dname[100], configname[200];
2327	int shostflag = 0, dhostflag = 0;
2328	struct pf_key_v2_node *ext;
2329	struct passwd *pwd = 0;
2330	u_int16_t sport = 0, dport = 0;
2331	u_int8_t tproto = 0;
2332	char tmbuf[sizeof sport * 3 + 1], *xform;
2333	int connlen;
2334
2335	/* This needs to be dynamically allocated. */
2336	connlen = 22;
2337	conn = malloc(connlen);
2338	if (!conn) {
2339	log_error("pf_key_v2_acquire: malloc (%d) failed", connlen);
2340	return;
2341	}
2342	msg = (struct sadb_msg *)TAILQ_FIRST(pmsg)((pmsg)->tqh_first)->seg;
2343
2344	ext = pf_key_v2_find_ext(pmsg, SADB_EXT_ADDRESS_DST6);
2345	if (!ext) {
2346	log_print("pf_key_v2_acquire: "
2347	"no destination address specified");
2348	free(conn);
2349	return;
2350	}
2351	dst = ext->seg;
2352
2353	ext = pf_key_v2_find_ext(pmsg, SADB_EXT_ADDRESS_SRC5);
2354	if (ext)
2355	src = ext->seg;
2356
2357	ext = pf_key_v2_find_ext(pmsg, SADB_EXT_PROPOSAL13);
2358	if (ext) {
2359	sprp = ext->seg;
2360	scmb = (struct sadb_comb *) (sprp + 1);
	Value stored to 'scmb' is never read
2361	}
2362	ext = pf_key_v2_find_ext(pmsg, SADB_EXT_IDENTITY_SRC10);
2363	if (ext)
2364	srcident = ext->seg;
2365
2366	ext = pf_key_v2_find_ext(pmsg, SADB_EXT_IDENTITY_DST11);
2367	if (ext)
2368	dstident = ext->seg;
2369
2370	/* Ask the kernel for the matching policy. */
2371	bzero(&askpolicy_msg, sizeof askpolicy_msg);
2372	askpolicy_msg.sadb_msg_type = SADB_X_ASKPOLICY15;
2373	askpolicy = pf_key_v2_msg_new(&askpolicy_msg, 0);
2374	if (!askpolicy)
2375	goto fail;
2376
2377	policy.sadb_x_policy_exttype = SADB_X_EXT_POLICY25;
2378	policy.sadb_x_policy_len = sizeof policy / PF_KEY_V2_CHUNK8;
2379	policy.sadb_x_policy_seq = msg->sadb_msg_seq;
2380	if (pf_key_v2_msg_add(askpolicy, (struct sadb_ext *)&policy, 0) == -1)
2381	goto fail;
2382
2383	ret = pf_key_v2_call(askpolicy);
2384	if (!ret)
2385	goto fail;
2386
2387	/* Now we have all the information needed. */
2388
2389	ext = pf_key_v2_find_ext(ret, SADB_X_EXT_SRC_FLOW21);
2390	if (!ext) {
2391	log_print("pf_key_v2_acquire: no source flow extension found");
2392	goto fail;
2393	}
2394	sflow = (struct sockaddr ) (((struct sadb_address ) ext->seg) + 1);
2395
2396	ext = pf_key_v2_find_ext(ret, SADB_X_EXT_DST_FLOW22);
2397	if (!ext) {
2398	log_print("pf_key_v2_acquire: "
2399	"no destination flow extension found");
2400	goto fail;
2401	}
2402	dflow = (struct sockaddr ) (((struct sadb_address ) ext->seg) + 1);
2403	ext = pf_key_v2_find_ext(ret, SADB_X_EXT_SRC_MASK17);
2404	if (!ext) {
2405	log_print("pf_key_v2_acquire: no source mask extension found");
2406	goto fail;
2407	}
2408	smask = (struct sockaddr ) (((struct sadb_address ) ext->seg) + 1);
2409
2410	ext = pf_key_v2_find_ext(ret, SADB_X_EXT_DST_MASK18);
2411	if (!ext) {
2412	log_print("pf_key_v2_acquire: "
2413	"no destination mask extension found");
2414	goto fail;
2415	}
2416	dmask = (struct sockaddr ) (((struct sadb_address ) ext->seg) + 1);
2417
2418	ext = pf_key_v2_find_ext(ret, SADB_X_EXT_FLOW_TYPE20);
2419	if (!ext) {
2420	log_print("pf_key_v2_acquire: no flow type extension found");
2421	goto fail;
2422	}
2423	sproto = ext->seg;
2424	tproto = sproto->sadb_protocol_proto;
2425
2426	bzero(ssflow, sizeof ssflow);
2427	bzero(sdflow, sizeof sdflow);
2428	bzero(ssmask, sizeof ssmask);
2429	bzero(sdmask, sizeof sdmask);
2430	smasklen = dmasklen = -1;
2431
2432	sidtype = didtype = "IPV4_ADDR_SUBNET"; /* default */
2433
2434	switch (sflow->sa_family) {
2435	case AF_INET2:
2436	if (inet_ntop(AF_INET2,
2437	&((struct sockaddr_in *) sflow)->sin_addr, ssflow,
2438	ADDRESS_MAXsizeof "ffff:ffff:ffff:ffff:ffff:ffff:255.255.255.255") == NULL((void *)0)) {
2439	log_print("pf_key_v2_acquire: inet_ntop failed");
2440	goto fail;
2441	}
2442	sport = ((struct sockaddr_in *) sflow)->sin_port;
2443	if (inet_ntop(AF_INET2,
2444	&((struct sockaddr_in *) dflow)->sin_addr, sdflow,
2445	ADDRESS_MAXsizeof "ffff:ffff:ffff:ffff:ffff:ffff:255.255.255.255") == NULL((void *)0)) {
2446	log_print("pf_key_v2_acquire: inet_ntop failed");
2447	goto fail;
2448	}
2449	dport = ((struct sockaddr_in *) dflow)->sin_port;
2450	if (inet_ntop(AF_INET2,
2451	&((struct sockaddr_in *) smask)->sin_addr, ssmask,
2452	ADDRESS_MAXsizeof "ffff:ffff:ffff:ffff:ffff:ffff:255.255.255.255") == NULL((void *)0)) {
2453	log_print("pf_key_v2_acquire: inet_ntop failed");
2454	goto fail;
2455	}
2456	if (inet_ntop(AF_INET2,
2457	&((struct sockaddr_in *) dmask)->sin_addr, sdmask,
2458	ADDRESS_MAXsizeof "ffff:ffff:ffff:ffff:ffff:ffff:255.255.255.255") == NULL((void *)0)) {
2459	log_print("pf_key_v2_acquire: inet_ntop failed");
2460	goto fail;
2461	}
2462	smasklen = mask4len((struct sockaddr_in *) smask);
2463	dmasklen = mask4len((struct sockaddr_in *) dmask);
2464	if (((struct sockaddr_in *) smask)->sin_addr.s_addr ==
2465	INADDR_BROADCAST((u_int32_t)(0xffffffff))) {
2466	shostflag = 1;
2467	sidtype = "IPV4_ADDR";
2468	}
2469	if (((struct sockaddr_in *) dmask)->sin_addr.s_addr ==
2470	INADDR_BROADCAST((u_int32_t)(0xffffffff))) {
2471	dhostflag = 1;
2472	didtype = "IPV4_ADDR";
2473	}
2474	break;
2475
2476	case AF_INET624:
2477	if (inet_ntop(AF_INET624,
2478	&((struct sockaddr_in6 *) sflow)->sin6_addr,
2479	ssflow, ADDRESS_MAXsizeof "ffff:ffff:ffff:ffff:ffff:ffff:255.255.255.255") == NULL((void *)0)) {
2480	log_print("pf_key_v2_acquire: inet_ntop failed");
2481	goto fail;
2482	}
2483	sport = ((struct sockaddr_in6 *) sflow)->sin6_port;
2484	if (inet_ntop(AF_INET624,
2485	&((struct sockaddr_in6 *) dflow)->sin6_addr,
2486	sdflow, ADDRESS_MAXsizeof "ffff:ffff:ffff:ffff:ffff:ffff:255.255.255.255") == NULL((void *)0)) {
2487	log_print("pf_key_v2_acquire: inet_ntop failed");
2488	goto fail;
2489	}
2490	dport = ((struct sockaddr_in6 *) dflow)->sin6_port;
2491	if (inet_ntop(AF_INET624,
2492	&((struct sockaddr_in6 *) smask)->sin6_addr,
2493	ssmask, ADDRESS_MAXsizeof "ffff:ffff:ffff:ffff:ffff:ffff:255.255.255.255") == NULL((void *)0)) {
2494	log_print("pf_key_v2_acquire: inet_ntop failed");
2495	goto fail;
2496	}
2497	if (inet_ntop(AF_INET624,
2498	&((struct sockaddr_in6 *) dmask)->sin6_addr,
2499	sdmask, ADDRESS_MAXsizeof "ffff:ffff:ffff:ffff:ffff:ffff:255.255.255.255") == NULL((void *)0)) {
2500	log_print("pf_key_v2_acquire: inet_ntop failed");
2501	goto fail;
2502	}
2503	smasklen = mask6len((struct sockaddr_in6 *) smask);
2504	dmasklen = mask6len((struct sockaddr_in6 *) dmask);
2505	sidtype = didtype = "IPV6_ADDR_SUBNET";
2506	if (IN6_IS_ADDR_FULL(&((struct sockaddr_in6 )smask)->sin6_addr)(((u_int32_t )(void )(&(&((struct sockaddr_in6 )smask )->sin6_addr)->__u6_addr.__u6_addr8[0]) == 0xffffffff) && ((u_int32_t )(void )(&(&((struct sockaddr_in6 )smask )->sin6_addr)->__u6_addr.__u6_addr8[4]) == 0xffffffff) && ((u_int32_t )(void )(&(&((struct sockaddr_in6 )smask )->sin6_addr)->__u6_addr.__u6_addr8[8]) == 0xffffffff) && ((u_int32_t )(void )(&(&((struct sockaddr_in6 *)smask )->sin6_addr)->__u6_addr.__u6_addr8[12]) == 0xffffffff) )) {
2507	shostflag = 1;
2508	sidtype = "IPV6_ADDR";
2509	}
2510	if (IN6_IS_ADDR_FULL(&((struct sockaddr_in6 )dmask)->sin6_addr)(((u_int32_t )(void )(&(&((struct sockaddr_in6 )dmask )->sin6_addr)->__u6_addr.__u6_addr8[0]) == 0xffffffff) && ((u_int32_t )(void )(&(&((struct sockaddr_in6 )dmask )->sin6_addr)->__u6_addr.__u6_addr8[4]) == 0xffffffff) && ((u_int32_t )(void )(&(&((struct sockaddr_in6 )dmask )->sin6_addr)->__u6_addr.__u6_addr8[8]) == 0xffffffff) && ((u_int32_t )(void )(&(&((struct sockaddr_in6 *)dmask )->sin6_addr)->__u6_addr.__u6_addr8[12]) == 0xffffffff) )) {
2511	dhostflag = 1;
2512	didtype = "IPV6_ADDR";
2513	}
2514	break;
2515	}
2516
2517	dstaddr = (struct sockaddr *)(dst + 1);
2518	bzero(dstbuf, sizeof dstbuf);
2519	bzero(srcbuf, sizeof srcbuf);
2520
2521	if (dstaddr->sa_family == 0) {
2522	/*
2523	* Destination was not specified in the flow -- can we derive
2524	* it?
2525	*/
2526	if (dhostflag == 0) {
2527	log_print("pf_key_v2_acquire: "
2528	"Cannot determine precise destination");
2529	goto fail;
2530	}
2531	dstaddr = dflow;
2532	}
2533	switch (dstaddr->sa_family) {
2534	case AF_INET2:
2535	if (inet_ntop(AF_INET2,
2536	&((struct sockaddr_in *) dstaddr)->sin_addr,
2537	dstbuf, ADDRESS_MAXsizeof "ffff:ffff:ffff:ffff:ffff:ffff:255.255.255.255") == NULL((void *)0)) {
2538	log_print("pf_key_v2_acquire: inet_ntop failed");
2539	goto fail;
2540	}
2541	LOG_DBG((LOG_SYSDEP, 20,log_debug (LOG_SYSDEP, 20, "pf_key_v2_acquire: dst=%s sproto %d" , dstbuf, msg->sadb_msg_satype)
2542	"pf_key_v2_acquire: dst=%s sproto %d", dstbuf,log_debug (LOG_SYSDEP, 20, "pf_key_v2_acquire: dst=%s sproto %d" , dstbuf, msg->sadb_msg_satype)
2543	msg->sadb_msg_satype))log_debug (LOG_SYSDEP, 20, "pf_key_v2_acquire: dst=%s sproto %d" , dstbuf, msg->sadb_msg_satype);
2544	break;
2545
2546	case AF_INET624:
2547	if (inet_ntop(AF_INET624,
2548	&((struct sockaddr_in6 *) dstaddr)->sin6_addr,
2549	dstbuf, ADDRESS_MAXsizeof "ffff:ffff:ffff:ffff:ffff:ffff:255.255.255.255") == NULL((void *)0)) {
2550	log_print("pf_key_v2_acquire: inet_ntop failed");
2551	goto fail;
2552	}
2553	LOG_DBG((LOG_SYSDEP, 20,log_debug (LOG_SYSDEP, 20, "pf_key_v2_acquire: dst=%s sproto %d" , dstbuf, msg->sadb_msg_satype)
2554	"pf_key_v2_acquire: dst=%s sproto %d", dstbuf,log_debug (LOG_SYSDEP, 20, "pf_key_v2_acquire: dst=%s sproto %d" , dstbuf, msg->sadb_msg_satype)
2555	msg->sadb_msg_satype))log_debug (LOG_SYSDEP, 20, "pf_key_v2_acquire: dst=%s sproto %d" , dstbuf, msg->sadb_msg_satype);
2556	break;
2557	}
2558
2559	if (src) {
2560	srcaddr = (struct sockaddr *) (src + 1);
2561
2562	switch (srcaddr->sa_family) {
2563	case AF_INET2:
2564	if (inet_ntop(AF_INET2,
2565	&((struct sockaddr_in *) srcaddr)->sin_addr,
2566	srcbuf, ADDRESS_MAXsizeof "ffff:ffff:ffff:ffff:ffff:ffff:255.255.255.255") == NULL((void *)0)) {
2567	log_print("pf_key_v2_acquire: "
2568	"inet_ntop failed");
2569	goto fail;
2570	}
2571	break;
2572
2573	case AF_INET624:
2574	if (inet_ntop(AF_INET624,
2575	&((struct sockaddr_in6 *)srcaddr)->sin6_addr,
2576	srcbuf, ADDRESS_MAXsizeof "ffff:ffff:ffff:ffff:ffff:ffff:255.255.255.255") == NULL((void *)0)) {
2577	log_print("pf_key_v2_acquire: "
2578	"inet_ntop failed");
2579	goto fail;
2580	}
2581	break;
2582
2583	default:
2584	/*
2585	* The kernel will pass an all '0' EXT_ADDRESS_SRC if
2586	* it wasn't specified for the flow. In that case, do
2587	* NOT specify the srcaddr in the Peer-name below
2588	*/
2589	srcbuf[0] = 0;
2590	srcaddr = NULL((void *)0);
2591	break;
2592	}
2593	}
2594	/* Insert source ID. */
2595	if (srcident) {
2596	slen = (srcident->sadb_ident_len * sizeof(u_int64_t))
2597	- sizeof(struct sadb_ident);
2598	if (((unsigned char *) (srcident + 1))[slen - 1] != '\0') {
2599	log_print("pf_key_v2_acquire: "
2600	"source identity not NUL-terminated");
2601	goto fail;
2602	}
2603	/* Check for valid type. */
2604	switch (srcident->sadb_ident_type) {
2605	case SADB_IDENTTYPE_PREFIX1:
2606	/* Determine what the address family is. */
2607	srcid = memchr(srcident + 1, ':', slen);
2608	if (srcid)
2609	afamily = AF_INET624;
2610	else
2611	afamily = AF_INET2;
2612
2613	srcid = memchr(srcident + 1, '/', slen);
2614	if (!srcid) {
2615	log_print("pf_key_v2_acquire: "
2616	"badly formatted PREFIX identity");
2617	goto fail;
2618	}
2619	masklen = atoi(srcid + 1);
2620
2621	/* XXX We only support host addresses. */
2622	if ((afamily == AF_INET624 && masklen != 128) \|\|
2623	(afamily == AF_INET2 && masklen != 32)) {
2624	log_print("pf_key_v2_acquire: "
2625	"non-host address specified in source "
2626	"identity (mask length %d), ignoring "
2627	"request", masklen);
2628	goto fail;
2629	}
2630	/*
2631	* NUL-terminate the PREFIX string at the separator,
2632	* then dup.
2633	*/
2634	*srcid = '\0';
2635	if (asprintf(&srcid, "id-%s",
2636	(char *) (srcident + 1)) == -1) {
2637	log_error("pf_key_v2_acquire: asprintf() failed");
2638	goto fail;
2639	}
2640
2641	/* Set the section if it doesn't already exist. */
2642	af = conf_begin();
2643	if (!conf_get_str(srcid, "ID-type")) {
2644	if (conf_set(af, srcid, "ID-type",
2645	afamily == AF_INET2 ? "IPV4_ADDR" :
2646	"IPV6_ADDR", 1, 0) \|\|
2647	conf_set(af, srcid, "Refcount", "1", 1, 0) \|\|
2648	conf_set(af, srcid, "Address",
2649	(char *) (srcident + 1), 1, 0)) {
2650	conf_end(af, 0);
2651	goto fail;
2652	}
2653	} else
2654	pf_key_v2_conf_refinc(af, srcid);
2655	conf_end(af, 1);
2656	break;
2657
2658	case SADB_IDENTTYPE_FQDN2:
2659	prefstring = "FQDN";
2660	/FALLTHROUGH/
2661	case SADB_IDENTTYPE_USERFQDN3:
2662	if (!prefstring) {
2663	prefstring = "USER_FQDN";
2664
2665	/*
2666	* Check whether there is a string following
2667	* the header; if no, that there is a user ID
2668	* (and acquire the login name). If there is
2669	* both a string and a user ID, check that
2670	* they match.
2671	*/
2672	if ((slen == 0) &&
2673	(srcident->sadb_ident_id == 0)) {
2674	log_print("pf_key_v2_acquire: "
2675	"no user FQDN or ID provided");
2676	goto fail;
2677	}
2678	if (srcident->sadb_ident_id) {
2679	pwd =
2680	getpwuid(srcident->sadb_ident_id);
2681	if (!pwd) {
2682	log_error("pf_key_v2_acquire: "
2683	"could not acquire "
2684	"username from provided "
2685	"ID %llu",
2686	srcident->sadb_ident_id);
2687	goto fail;
2688	}
2689	if (slen != 0)
2690	if (strcmp(pwd->pw_name,
2691	(char *) (srcident + 1))
2692	!= 0) {
2693	log_print("pf_key_v2_acquire: "
2694	"provided user "
2695	"name and ID do "
2696	"not match (%s != "
2697	"%s)",
2698	(char *) (srcident + 1),
2699	pwd->pw_name);
2700	/*
2701	* String has
2702	* precedence, per
2703	* RFC 2367.
2704	*/
2705	}
2706	}
2707	}
2708	if (asprintf(&srcid, "id-%s",
2709	slen ? (char *) (srcident + 1) : pwd->pw_name) == -1) {
2710	log_error("pf_key_v2_acquire: asprintf() failed");
2711	goto fail;
2712	}
2713	pwd = 0;
2714
2715	/* Set the section if it doesn't already exist. */
2716	af = conf_begin();
2717	if (!conf_get_str(srcid, "ID-type")) {
2718	if (conf_set(af, srcid, "ID-type", prefstring,
2719	1, 0) \|\|
2720	conf_set(af, srcid, "Refcount", "1", 1, 0) \|\|
2721	conf_set(af, srcid, "Name",
2722	srcid + 3, 1, 0)) {
2723	conf_end(af, 0);
2724	goto fail;
2725	}
2726	} else
2727	pf_key_v2_conf_refinc(af, srcid);
2728	conf_end(af, 1);
2729	break;
2730
2731	default:
2732	LOG_DBG((LOG_SYSDEP, 20,log_debug (LOG_SYSDEP, 20, "pf_key_v2_acquire: invalid source ID type %d" , srcident->sadb_ident_type)
2733	"pf_key_v2_acquire: invalid source ID type %d",log_debug (LOG_SYSDEP, 20, "pf_key_v2_acquire: invalid source ID type %d" , srcident->sadb_ident_type)
2734	srcident->sadb_ident_type))log_debug (LOG_SYSDEP, 20, "pf_key_v2_acquire: invalid source ID type %d" , srcident->sadb_ident_type);
2735	goto fail;
2736	}
2737
2738	LOG_DBG((LOG_SYSDEP, 50,log_debug (LOG_SYSDEP, 50, "pf_key_v2_acquire: constructed source ID \"%s\"" , srcid)
2739	"pf_key_v2_acquire: constructed source ID \"%s\"", srcid))log_debug (LOG_SYSDEP, 50, "pf_key_v2_acquire: constructed source ID \"%s\"" , srcid);
2740	prefstring = 0;
2741	}
2742	/* Insert destination ID. */
2743	if (dstident) {
2744	slen = (dstident->sadb_ident_len * sizeof(u_int64_t))
2745	- sizeof(struct sadb_ident);
2746
2747	/* Check for valid type. */
2748	switch (dstident->sadb_ident_type) {
2749	case SADB_IDENTTYPE_PREFIX1:
2750	/* Determine what the address family is. */
2751	dstid = memchr(dstident + 1, ':', slen);
2752	if (dstid)
2753	afamily = AF_INET624;
2754	else
2755	afamily = AF_INET2;
2756
2757	dstid = memchr(dstident + 1, '/', slen);
2758	if (!dstid) {
2759	log_print("pf_key_v2_acquire: "
2760	"badly formatted PREFIX identity");
2761	goto fail;
2762	}
2763	masklen = atoi(dstid + 1);
2764
2765	/* XXX We only support host addresses. */
2766	if ((afamily == AF_INET624 && masklen != 128) \|\|
2767	(afamily == AF_INET2 && masklen != 32)) {
2768	log_print("pf_key_v2_acquire: "
2769	"non-host address specified in "
2770	"destination identity (mask length %d), "
2771	"ignoring request", masklen);
2772	goto fail;
2773	}
2774	/*
2775	* NUL-terminate the PREFIX string at the separator,
2776	* then dup.
2777	*/
2778	*dstid = '\0';
2779	if (asprintf(&dstid, "id-%s",
2780	(char *) (dstident + 1)) == -1) {
2781	log_error("pf_key_v2_acquire: asprintf() failed");
2782	goto fail;
2783	}
2784
2785	/* Set the section if it doesn't already exist. */
2786	af = conf_begin();
2787	if (!conf_get_str(dstid, "ID-type")) {
2788	if (conf_set(af, dstid, "ID-type",
2789	afamily == AF_INET2 ? "IPV4_ADDR" :
2790	"IPV6_ADDR", 1, 0) \|\|
2791	conf_set(af, dstid, "Refcount", "1", 1, 0) \|\|
2792	conf_set(af, dstid, "Address",
2793	(char *) (dstident + 1), 1, 0)) {
2794	conf_end(af, 0);
2795	goto fail;
2796	}
2797	} else
2798	pf_key_v2_conf_refinc(af, dstid);
2799	conf_end(af, 1);
2800	break;
2801
2802	case SADB_IDENTTYPE_FQDN2:
2803	prefstring = "FQDN";
2804	/FALLTHROUGH/
2805	case SADB_IDENTTYPE_USERFQDN3:
2806	if (!prefstring) {
2807	prefstring = "USER_FQDN";
2808
2809	/*
2810	* Check whether there is a string following
2811	* the header; if no, that there is a user ID
2812	* (and acquire the login name). If there is
2813	* both a string and a user ID, check that
2814	* they match.
2815	*/
2816	if (slen == 0 &&
2817	dstident->sadb_ident_id == 0) {
2818	log_print("pf_key_v2_acquire: "
2819	"no user FQDN or ID provided");
2820	goto fail;
2821	}
2822	if (dstident->sadb_ident_id) {
2823	pwd = getpwuid(dstident->sadb_ident_id);
2824	if (!pwd) {
2825	log_error("pf_key_v2_acquire: "
2826	"could not acquire "
2827	"username from provided "
2828	"ID %llu",
2829	dstident->sadb_ident_id);
2830	goto fail;
2831	}
2832	if (slen != 0)
2833	if (strcmp(pwd->pw_name,
2834	(char *) (dstident + 1))
2835	!= 0) {
2836	log_print("pf_key_v2_acquire: "
2837	"provided user "
2838	"name and ID do "
2839	"not match (%s != "
2840	"%s)",
2841	(char *) (dstident + 1),
2842	pwd->pw_name);
2843	/*
2844	* String has
2845	* precedence, per RF
2846	* 2367.
2847	*/
2848	}
2849	}
2850	}
2851	if (asprintf(&dstid, "id-%s",
2852	slen ? (char *) (dstident + 1) : pwd->pw_name) == -1) {
2853	log_error("pf_key_v2_acquire: asprintf() failed");
2854	goto fail;
2855	}
2856	pwd = 0;
2857
2858	/* Set the section if it doesn't already exist. */
2859	af = conf_begin();
2860	if (!conf_get_str(dstid, "ID-type")) {
2861	if (conf_set(af, dstid, "ID-type", prefstring,
2862	1, 0) \|\|
2863	conf_set(af, dstid, "Refcount", "1", 1, 0) \|\|
2864	conf_set(af, dstid, "Name",
2865	dstid + 3, 1, 0)) {
2866	conf_end(af, 0);
2867	goto fail;
2868	}
2869	} else
2870	pf_key_v2_conf_refinc(af, dstid);
2871	conf_end(af, 1);
2872	break;
2873
2874	default:
2875	LOG_DBG((LOG_SYSDEP, 20, "pf_key_v2_acquire: "log_debug (LOG_SYSDEP, 20, "pf_key_v2_acquire: " "invalid destination ID type %d" , dstident->sadb_ident_type)
2876	"invalid destination ID type %d",log_debug (LOG_SYSDEP, 20, "pf_key_v2_acquire: " "invalid destination ID type %d" , dstident->sadb_ident_type)
2877	dstident->sadb_ident_type))log_debug (LOG_SYSDEP, 20, "pf_key_v2_acquire: " "invalid destination ID type %d" , dstident->sadb_ident_type);
2878	goto fail;
2879	}
2880
2881	LOG_DBG((LOG_SYSDEP, 50,log_debug (LOG_SYSDEP, 50, "pf_key_v2_acquire: constructed destination ID \"%s\"" , dstid)
2882	"pf_key_v2_acquire: constructed destination ID \"%s\"",log_debug (LOG_SYSDEP, 50, "pf_key_v2_acquire: constructed destination ID \"%s\"" , dstid)
2883	dstid))log_debug (LOG_SYSDEP, 50, "pf_key_v2_acquire: constructed destination ID \"%s\"" , dstid);
2884	}
2885	/* Now we've placed the necessary IDs in the configuration space. */
2886
2887	/* Get a new connection sequence number. */
2888	for (;; connection_seq++) {
2889	snprintf(conn, connlen, "Connection-%u", connection_seq);
2890
2891	/* Does it exist ? */
2892	if (!conf_get_str(conn, "Phase"))
2893	break;
2894	}
2895
2896	/*
2897	* Set the IPsec connection entry. In particular, the following fields:
2898	* - Phase
2899	* - ISAKMP-peer
2900	* - Local-ID/Remote-ID (if provided)
2901	* - Acquire-ID (sequence number of kernel message, e.g., PF_KEYv2)
2902	* - Configuration
2903	*
2904	* Also set the following section:
2905	* [peer-dstaddr(-local-srcaddr)]
2906	* with these fields:
2907	* - Phase
2908	* - ID (if provided)
2909	* - Remote-ID (if provided)
2910	* - Local-address (if provided)
2911	* - Address
2912	* - Configuration (if an entry phase1-dstaddr-srcadd)
2913	* exists -- otherwise use the defaults)
2914	*/
2915
2916	/*
2917	* The various cases:
2918	* - peer-dstaddr
2919	* - peer-dstaddr-local-srcaddr
2920	*/
2921	if (asprintf(&peer, "peer-%s%s%s", dstbuf, srcaddr ? "-local-" : "",
2922	srcaddr ? srcbuf : "") == -1)
2923	goto fail;
2924
2925	/*
2926	* Set the IPsec connection section. Refcount is set to 2, because
2927	* it will be linked both to the incoming and the outgoing SA.
2928	*/
2929	af = conf_begin();
2930	if (conf_set(af, conn, "Phase", "2", 0, 0) \|\|
2931	conf_set(af, conn, "Flags", "__ondemand", 0, 0) \|\|
2932	conf_set(af, conn, "Refcount", "2", 0, 0) \|\|
2933	conf_set(af, conn, "ISAKMP-peer", peer, 0, 0)) {
2934	conf_end(af, 0);
2935	goto fail;
2936	}
2937	/* Set the sequence number. */
2938	snprintf(lname, sizeof lname, "%u", msg->sadb_msg_seq);
2939	if (conf_set(af, conn, "Acquire-ID", lname, 0, 0)) {
2940	conf_end(af, 0);
2941	goto fail;
2942	}
2943	/*
2944	* Set Phase 2 IDs -- this is the Local-ID section.
2945	* - from-address
2946	* - from-address=proto
2947	* - from-address=proto:port
2948	* - from-network/masklen
2949	* - from-network/masklen=proto
2950	* - from-network/masklen=proto:port
2951	*/
2952	phase2id(lname, sizeof lname, "from", ssflow, smasklen, tproto, sport);
2953	if (conf_set(af, conn, "Local-ID", lname, 0, 0)) {
2954	conf_end(af, 0);
2955	goto fail;
2956	}
2957	if (!conf_get_str(lname, "ID-type")) {
2958	if (conf_set(af, lname, "Refcount", "1", 0, 0)) {
2959	conf_end(af, 0);
2960	goto fail;
2961	}
2962	if (shostflag) {
2963	if (conf_set(af, lname, "ID-type", sidtype, 0, 0) \|\|
2964	conf_set(af, lname, "Address", ssflow, 0, 0)) {
2965	conf_end(af, 0);
2966	goto fail;
2967	}
2968	} else {
2969	if (conf_set(af, lname, "ID-type", sidtype, 0, 0) \|\|
2970	conf_set(af, lname, "Network", ssflow, 0, 0) \|\|
2971	conf_set(af, lname, "Netmask", ssmask, 0, 0)) {
2972	conf_end(af, 0);
2973	goto fail;
2974	}
2975	}
2976	if (tproto) {
2977	snprintf(tmbuf, sizeof sport * 3 + 1, "%u", tproto);
2978	if (conf_set(af, lname, "Protocol", tmbuf, 0, 0)) {
2979	conf_end(af, 0);
2980	goto fail;
2981	}
2982	if (sport) {
2983	snprintf(tmbuf, sizeof sport * 3 + 1, "%u",
2984	ntohs(sport)(__uint16_t)(__builtin_constant_p(sport) ? (__uint16_t)(((__uint16_t )(sport) & 0xffU) << 8 \| ((__uint16_t)(sport) & 0xff00U) >> 8) : __swap16md(sport)));
2985	if (conf_set(af, lname, "Port", tmbuf, 0, 0)) {
2986	conf_end(af, 0);
2987	goto fail;
2988	}
2989	}
2990	}
2991	} else
2992	pf_key_v2_conf_refinc(af, lname);
2993
2994	/*
2995	* Set Remote-ID section.
2996	* to-address
2997	* to-address=proto
2998	* to-address=proto:port
2999	* to-network/masklen
3000	* to-network/masklen=proto
3001	* to-network/masklen=proto:port
3002	*/
3003	phase2id(dname, sizeof dname, "to", sdflow, dmasklen, tproto, dport);
3004	if (conf_set(af, conn, "Remote-ID", dname, 0, 0)) {
3005	conf_end(af, 0);
3006	goto fail;
3007	}
3008	if (!conf_get_str(dname, "ID-type")) {
3009	if (conf_set(af, dname, "Refcount", "1", 0, 0)) {
3010	conf_end(af, 0);
3011	goto fail;
3012	}
3013	if (dhostflag) {
3014	if (conf_set(af, dname, "ID-type", didtype, 0, 0) \|\|
3015	conf_set(af, dname, "Address", sdflow, 0, 0)) {
3016	conf_end(af, 0);
3017	goto fail;
3018	}
3019	} else {
3020	if (conf_set(af, dname, "ID-type", didtype, 0, 0) \|\|
3021	conf_set(af, dname, "Network", sdflow, 0, 0) \|\|
3022	conf_set(af, dname, "Netmask", sdmask, 0, 0)) {
3023	conf_end(af, 0);
3024	goto fail;
3025	}
3026	}
3027
3028	if (tproto) {
3029	snprintf(tmbuf, sizeof dport * 3 + 1, "%u", tproto);
3030	if (conf_set(af, dname, "Protocol", tmbuf, 0, 0)) {
3031	conf_end(af, 0);
3032	goto fail;
3033	}
3034	if (dport) {
3035	snprintf(tmbuf, sizeof dport * 3 + 1, "%u",
3036	ntohs(dport)(__uint16_t)(__builtin_constant_p(dport) ? (__uint16_t)(((__uint16_t )(dport) & 0xffU) << 8 \| ((__uint16_t)(dport) & 0xff00U) >> 8) : __swap16md(dport)));
3037	if (conf_set(af, dname, "Port", tmbuf, 0, 0)) {
3038	conf_end(af, 0);
3039	goto fail;
3040	}
3041	}
3042	}
3043	} else
3044	pf_key_v2_conf_refinc(af, dname);
3045
3046	/*
3047	* XXX
3048	* We should be using information from the proposal to set this up.
3049	* At least, we should make this selectable.
3050	*/
3051
3052	/*
3053	* Phase 2 configuration.
3054	* - phase2-from-address-to-address
3055	* - ...
3056	* - phase2-from-net/len=proto:port-to-net/len=proto:port
3057	*/
3058	snprintf(configname, sizeof configname, "phase2-%s-%s", lname, dname);
3059	if (conf_set(af, conn, "Configuration", configname, 0, 0)) {
3060	conf_end(af, 0);
3061	goto fail;
3062	}
3063	if (!conf_get_str(configname, "Exchange_type")) {
3064	if (conf_set(af, configname, "Exchange_type", "Quick_mode",
3065	0, 0) \|\|
3066	conf_set(af, peer, "Refcount", "1", 0, 0) \|\|
3067	conf_set(af, configname, "DOI", "IPSEC", 0, 0)) {
3068	conf_end(af, 0);
3069	goto fail;
3070	}
3071	if (conf_get_str("General", "Default-phase-2-suites")) {
3072	if (conf_set(af, configname, "Suites",
3073	conf_get_str("General", "Default-phase-2-suites"),
3074	0, 0)) {
3075	conf_end(af, 0);
3076	goto fail;
3077	}
3078	} else {
3079	if (conf_set(af, configname, "Suites",
3080	"QM-ESP-3DES-SHA-PFS-SUITE", 0, 0)) {
3081	conf_end(af, 0);
3082	goto fail;
3083	}
3084	}
3085	} else
3086	pf_key_v2_conf_refinc(af, configname);
3087
3088	/* Set the ISAKMP-peer section. */
3089	if (!conf_get_str(peer, "Phase")) {
3090	if (conf_set(af, peer, "Phase", "1", 0, 0) \|\|
3091	conf_set(af, peer, "Refcount", "1", 0, 0) \|\|
3092	conf_set(af, peer, "Address", dstbuf, 0, 0)) {
3093	conf_end(af, 0);
3094	goto fail;
3095	}
3096	if (srcaddr && conf_set(af, peer, "Local-address", srcbuf, 0,
3097	0)) {
3098	conf_end(af, 0);
3099	goto fail;
3100	}
3101	snprintf(confname, sizeof confname, "phase1-%s", peer);
3102	if (conf_set(af, peer, "Configuration", confname, 0, 0)) {
3103	conf_end(af, 0);
3104	goto fail;
3105	}
3106
3107	/* Phase 1 configuration. */
3108	if (!conf_get_str(confname, "exchange_type")) {
3109	xform = conf_get_str("Default-phase-1-configuration",
3110	"Transforms");
3111	if (conf_set(af, confname, "Transforms", xform ? xform :
3112	"3DES-SHA-RSA_SIG", 0, 0)) {
3113	conf_end(af, 0);
3114	goto fail;
3115	}
3116
3117	if (conf_set(af, confname, "Exchange_Type", "ID_PROT",
3118	0, 0) \|\|
3119	conf_set(af, confname, "DOI", "IPSEC", 0, 0) \|\|
3120	conf_set(af, confname, "Refcount", "1", 0, 0)) {
3121	conf_end(af, 0);
3122	goto fail;
3123	}
3124	} else
3125	pf_key_v2_conf_refinc(af, confname);
3126
3127	/* The ID we should use in Phase 1. */
3128	if (srcid && conf_set(af, peer, "ID", srcid, 0, 0)) {
3129	conf_end(af, 0);
3130	goto fail;
3131	}
3132	/* The ID the other side should use in Phase 1. */
3133	if (dstid && conf_set(af, peer, "Remote-ID", dstid, 0, 0)) {
3134	conf_end(af, 0);
3135	goto fail;
3136	}
3137	} else
3138	pf_key_v2_conf_refinc(af, peer);
3139
3140	/* All done. */
3141	conf_end(af, 1);
3142
3143	/* Let's rock 'n roll. */
3144	connection_record_passive(conn);
3145	pf_key_v2_connection_check(conn);
3146	conn = 0;
3147
3148	/* Fall-through to cleanup. */
3149	fail:
3150	if (ret)
3151	pf_key_v2_msg_free(ret);
3152	if (askpolicy)
3153	pf_key_v2_msg_free(askpolicy);
3154	free(srcid);
3155	free(dstid);
3156	free(peer);
3157	free(conn);
3158	return;
3159	}
3160
3161	static void
3162	pf_key_v2_notify(struct pf_key_v2_msg *msg)
3163	{
3164	switch (((struct sadb_msg *)TAILQ_FIRST(msg)((msg)->tqh_first)->seg)->sadb_msg_type) {
3165	case SADB_EXPIRE8:
3166	pf_key_v2_expire(msg);
3167	break;
3168
3169	case SADB_ACQUIRE6:
3170	if (!ui_daemon_passive)
3171	pf_key_v2_acquire(msg);
3172	break;
3173
3174	default:
3175	log_print("pf_key_v2_notify: unexpected message type (%d)",
3176	((struct sadb_msg *)TAILQ_FIRST(msg)((msg)->tqh_first)->seg)->sadb_msg_type);
3177	}
3178	pf_key_v2_msg_free(msg);
3179	}
3180
3181	void
3182	pf_key_v2_handler(int fd)
3183	{
3184	struct pf_key_v2_msg *msg;
3185	int n;
3186
3187	/*
3188	* As synchronous read/writes to the socket can have taken place
3189	* between the select(2) call of the main loop and this handler, we
3190	* need to recheck the readability.
3191	*/
3192	if (ioctl(pf_key_v2_socket, FIONREAD((unsigned long)0x40000000 \| ((sizeof(int) & 0x1fff) << 16) \| ((('f')) << 8) \| ((127))), &n) == -1) {
3193	log_error("pf_key_v2_handler: ioctl (%d, FIONREAD, &n) failed",
3194	pf_key_v2_socket);
3195	return;
3196	}
3197	if (!n)
3198	return;
3199
3200	msg = pf_key_v2_read(0);
3201	if (msg)
3202	pf_key_v2_notify(msg);
3203	}
3204
3205	/*
3206	* Group 2 IPsec SAs given by the PROTO1 and PROTO2 protocols of the SA IKE
3207	* security association in a chain.
3208	* XXX Assumes OpenBSD GRPSPIS extension.
3209	*/
3210	int
3211	pf_key_v2_group_spis(struct sa sa, struct proto proto1,
3212	struct proto *proto2, int incoming)
3213	{
3214	struct sadb_msg msg;
3215	struct sadb_sa sa1, sa2;
3216	struct sadb_address *addr = 0;
3217	struct sadb_protocol protocol;
3218	struct pf_key_v2_msg grpspis = 0, ret = 0;
3219	struct sockaddr *saddr;
3220	int err;
3221	size_t len;
3222
3223	msg.sadb_msg_type = SADB_X_GRPSPIS14;
3224	switch (proto1->proto) {
3225	case IPSEC_PROTO_IPSEC_ESP3:
3226	msg.sadb_msg_satype = SADB_SATYPE_ESP2;
3227	break;
3228	case IPSEC_PROTO_IPSEC_AH2:
3229	msg.sadb_msg_satype = SADB_SATYPE_AH1;
3230	break;
3231	case IPSEC_PROTO_IPCOMP4:
3232	msg.sadb_msg_satype = SADB_X_SATYPE_IPCOMP9;
3233	break;
3234	default:
3235	log_print("pf_key_v2_group_spis: invalid proto %d",
3236	proto1->proto);
3237	goto cleanup;
3238	}
3239	msg.sadb_msg_seq = 0;
3240	grpspis = pf_key_v2_msg_new(&msg, 0);
3241	if (!grpspis)
3242	goto cleanup;
3243
3244	/* Setup the SA extensions. */
3245	sa1.sadb_sa_exttype = SADB_EXT_SA1;
3246	sa1.sadb_sa_len = sizeof sa1 / PF_KEY_V2_CHUNK8;
3247	memcpy(&sa1.sadb_sa_spi, proto1->spi[incoming],
3248	sizeof sa1.sadb_sa_spi);
3249	sa1.sadb_sa_replay = 0;
3250	sa1.sadb_sa_state = 0;
3251	sa1.sadb_sa_auth = 0;
3252	sa1.sadb_sa_encrypt = 0;
3253	sa1.sadb_sa_flags = 0;
3254	if (pf_key_v2_msg_add(grpspis, (struct sadb_ext *)&sa1, 0) == -1)
3255	goto cleanup;
3256
3257	sa2.sadb_sa_exttype = SADB_X_EXT_SA223;
3258	sa2.sadb_sa_len = sizeof sa2 / PF_KEY_V2_CHUNK8;
3259	memcpy(&sa2.sadb_sa_spi, proto2->spi[incoming],
3260	sizeof sa2.sadb_sa_spi);
3261	sa2.sadb_sa_replay = 0;
3262	sa2.sadb_sa_state = 0;
3263	sa2.sadb_sa_auth = 0;
3264	sa2.sadb_sa_encrypt = 0;
3265	sa2.sadb_sa_flags = 0;
3266	if (pf_key_v2_msg_add(grpspis, (struct sadb_ext *)&sa2, 0) == -1)
3267	goto cleanup;
3268
3269	/*
3270	* Setup the ADDRESS extensions.
3271	*/
3272	if (incoming)
3273	sa->transport->vtbl->get_src(sa->transport, &saddr);
3274	else
3275	sa->transport->vtbl->get_dst(sa->transport, &saddr);
3276	len = sizeof *addr + PF_KEY_V2_ROUND(SA_LEN(saddr))(((((saddr)->sa_len)) + 8 - 1) & ~(8 - 1));
3277	addr = calloc(1, len);
3278	if (!addr)
3279	goto cleanup;
3280	addr->sadb_address_exttype = SADB_EXT_ADDRESS_DST6;
3281	addr->sadb_address_len = len / PF_KEY_V2_CHUNK8;
3282	addr->sadb_address_reserved = 0;
3283	memcpy(addr + 1, saddr, SA_LEN(saddr)((saddr)->sa_len));
3284	((struct sockaddr_in *) (addr + 1))->sin_port = 0;
3285	if (pf_key_v2_msg_add(grpspis, (struct sadb_ext *) addr,
3286	PF_KEY_V2_NODE_MALLOCED1) == -1)
3287	goto cleanup;
3288	addr = 0;
3289
3290	addr = calloc(1, len);
3291	if (!addr)
3292	goto cleanup;
3293	addr->sadb_address_exttype = SADB_X_EXT_DST224;
3294	addr->sadb_address_len = len / PF_KEY_V2_CHUNK8;
3295	addr->sadb_address_reserved = 0;
3296	memcpy(addr + 1, saddr, SA_LEN(saddr)((saddr)->sa_len));
3297	((struct sockaddr_in *) (addr + 1))->sin_port = 0;
3298	if (pf_key_v2_msg_add(grpspis, (struct sadb_ext *) addr,
3299	PF_KEY_V2_NODE_MALLOCED1) == -1)
3300	goto cleanup;
3301	addr = 0;
3302
3303	/* Setup the sa type extension. */
3304	protocol.sadb_protocol_exttype = SADB_X_EXT_SATYPE235;
3305	protocol.sadb_protocol_len = sizeof protocol / PF_KEY_V2_CHUNK8;
3306	switch (proto2->proto) {
3307	case IPSEC_PROTO_IPSEC_ESP3:
3308	protocol.sadb_protocol_proto = SADB_SATYPE_ESP2;
3309	break;
3310	case IPSEC_PROTO_IPSEC_AH2:
3311	protocol.sadb_protocol_proto = SADB_SATYPE_AH1;
3312	break;
3313	case IPSEC_PROTO_IPCOMP4:
3314	protocol.sadb_protocol_proto = SADB_X_SATYPE_IPCOMP9;
3315	break;
3316	default:
3317	log_print("pf_key_v2_group_spis: invalid proto %d",
3318	proto2->proto);
3319	goto cleanup;
3320	}
3321	protocol.sadb_protocol_reserved2 = 0;
3322	if (pf_key_v2_msg_add(grpspis,
3323	(struct sadb_ext *)&protocol, 0) == -1)
3324	goto cleanup;
3325
3326	ret = pf_key_v2_call(grpspis);
3327	pf_key_v2_msg_free(grpspis);
3328	grpspis = 0;
3329	if (!ret)
3330	goto cleanup;
3331	err = ((struct sadb_msg *)TAILQ_FIRST(ret)((ret)->tqh_first)->seg)->sadb_msg_errno;
3332	if (err) {
3333	log_print("pf_key_v2_group_spis: GRPSPIS: %s", strerror(err));
3334	goto cleanup;
3335	}
3336	pf_key_v2_msg_free(ret);
3337
3338	LOG_DBG((LOG_SYSDEP, 50, "pf_key_v2_group_spis: done"))log_debug (LOG_SYSDEP, 50, "pf_key_v2_group_spis: done");
3339
3340	return 0;
3341
3342	cleanup:
3343	free(addr);
3344	if (grpspis)
3345	pf_key_v2_msg_free(grpspis);
3346	if (ret)
3347	pf_key_v2_msg_free(ret);
3348	return -1;
3349	}