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af_inet6.c @ e599318

4.1155-freebsd-126-freebsd-12freebsd-9.3

Last change on this file since e599318 was e599318, checked in by Sebastian Huber <sebastian.huber@…>, on 10/09/13 at 20:52:54

Update files to match FreeBSD layout

Add compatibility with Newlib header files. Some FreeBSD header files
are mapped by the translation script:

o rtems/bsd/sys/_types.h
o rtems/bsd/sys/errno.h
o rtems/bsd/sys/lock.h
o rtems/bsd/sys/param.h
o rtems/bsd/sys/resource.h
o rtems/bsd/sys/time.h
o rtems/bsd/sys/timespec.h
o rtems/bsd/sys/types.h
o rtems/bsd/sys/unistd.h

It is now possible to include <sys/socket.h> directly for example.

Generate one Makefile which builds everything including tests.

Property mode set to 100644

File size: 15.0 KB

Line
1	/*
2	* Copyright (c) 1983, 1993
3	* The Regents of the University of California. All rights reserved.
4	*
5	* Redistribution and use in source and binary forms, with or without
6	* modification, are permitted provided that the following conditions
7	* are met:
8	* 1. Redistributions of source code must retain the above copyright
9	* notice, this list of conditions and the following disclaimer.
10	* 2. Redistributions in binary form must reproduce the above copyright
11	* notice, this list of conditions and the following disclaimer in the
12	* documentation and/or other materials provided with the distribution.
13	* 4. Neither the name of the University nor the names of its contributors
14	* may be used to endorse or promote products derived from this software
15	* without specific prior written permission.
16	*
17	* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20	* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27	* SUCH DAMAGE.
28	*/
29
30	#ifndef lint
31	static const char rcsid[] =
32	"$FreeBSD$";
33	#endif /* not lint */
34
35	#include <rtems/bsd/sys/param.h>
36	#include <sys/ioctl.h>
37	#include <sys/socket.h>
38	#include <net/if.h>
39
40	#include <err.h>
41	#include <stdio.h>
42	#include <stdlib.h>
43	#include <string.h>
44	#include <unistd.h>
45	#include <ifaddrs.h>
46
47	#include <arpa/inet.h>
48
49	#include <netinet/in.h>
50	#include <net/if_var.h> /* for struct ifaddr */
51	#include <netinet/in_var.h>
52	#include <arpa/inet.h>
53	#include <netdb.h>
54
55	#include <netinet6/nd6.h> /* Define ND6_INFINITE_LIFETIME */
56
57	#include "ifconfig.h"
58
59	static struct in6_ifreq in6_ridreq;
60	static struct in6_aliasreq in6_addreq =
61	{ .ifra_flags = 0,
62	.ifra_lifetime = { 0, 0, ND6_INFINITE_LIFETIME, ND6_INFINITE_LIFETIME } };
63	static int ip6lifetime;
64
65	static void in6_fillscopeid(struct sockaddr_in6 *sin6);
66	static int prefix(void *, int);
67	static char *sec2str(time_t);
68	static int explicit_prefix = 0;
69
70	extern void setnd6flags(const char , int, int, const struct afswtch );
71	extern void setnd6defif(const char , int, int, const struct afswtch );
72
73	static char addr_buf[MAXHOSTNAMELEN 2 + 1]; /for getnameinfo()*/
74
75	static void
76	setifprefixlen(const char *addr, int dummy __unused, int s,
77	const struct afswtch *afp)
78	{
79	if (afp->af_getprefix != NULL)
80	afp->af_getprefix(addr, MASK);
81	explicit_prefix = 1;
82	}
83
84	static void
85	setip6flags(const char *dummyaddr __unused, int flag, int dummysoc __unused,
86	const struct afswtch *afp)
87	{
88	if (afp->af_af != AF_INET6)
89	err(1, "address flags can be set only for inet6 addresses");
90
91	if (flag < 0)
92	in6_addreq.ifra_flags &= ~(-flag);
93	else
94	in6_addreq.ifra_flags \|= flag;
95	}
96
97	static void
98	setip6lifetime(const char cmd, const char val, int s,
99	const struct afswtch *afp)
100	{
101	time_t newval, t;
102	char *ep;
103
104	t = time(NULL);
105	newval = (time_t)strtoul(val, &ep, 0);
106	if (val == ep)
107	errx(1, "invalid %s", cmd);
108	if (afp->af_af != AF_INET6)
109	errx(1, "%s not allowed for the AF", cmd);
110	if (strcmp(cmd, "vltime") == 0) {
111	in6_addreq.ifra_lifetime.ia6t_expire = t + newval;
112	in6_addreq.ifra_lifetime.ia6t_vltime = newval;
113	} else if (strcmp(cmd, "pltime") == 0) {
114	in6_addreq.ifra_lifetime.ia6t_preferred = t + newval;
115	in6_addreq.ifra_lifetime.ia6t_pltime = newval;
116	}
117	}
118
119	static void
120	setip6pltime(const char *seconds, int dummy __unused, int s,
121	const struct afswtch *afp)
122	{
123	setip6lifetime("pltime", seconds, s, afp);
124	}
125
126	static void
127	setip6vltime(const char *seconds, int dummy __unused, int s,
128	const struct afswtch *afp)
129	{
130	setip6lifetime("vltime", seconds, s, afp);
131	}
132
133	static void
134	setip6eui64(const char *cmd, int dummy __unused, int s,
135	const struct afswtch *afp)
136	{
137	struct ifaddrs ifap, ifa;
138	const struct sockaddr_in6 *sin6 = NULL;
139	const struct in6_addr *lladdr = NULL;
140	struct in6_addr *in6;
141
142	if (afp->af_af != AF_INET6)
143	errx(EXIT_FAILURE, "%s not allowed for the AF", cmd);
144	in6 = (struct in6_addr *)&in6_addreq.ifra_addr.sin6_addr;
145	if (memcmp(&in6addr_any.s6_addr[8], &in6->s6_addr[8], 8) != 0)
146	errx(EXIT_FAILURE, "interface index is already filled");
147	if (getifaddrs(&ifap) != 0)
148	err(EXIT_FAILURE, "getifaddrs");
149	for (ifa = ifap; ifa; ifa = ifa->ifa_next) {
150	if (ifa->ifa_addr->sa_family == AF_INET6 &&
151	strcmp(ifa->ifa_name, name) == 0) {
152	sin6 = (const struct sockaddr_in6 *)ifa->ifa_addr;
153	if (IN6_IS_ADDR_LINKLOCAL(&sin6->sin6_addr)) {
154	lladdr = &sin6->sin6_addr;
155	break;
156	}
157	}
158	}
159	if (!lladdr)
160	errx(EXIT_FAILURE, "could not determine link local address");
161
162	memcpy(&in6->s6_addr[8], &lladdr->s6_addr[8], 8);
163
164	freeifaddrs(ifap);
165	}
166
167	static void
168	in6_fillscopeid(struct sockaddr_in6 *sin6)
169	{
170	#if defined(__KAME__) && defined(KAME_SCOPEID)
171	if (IN6_IS_ADDR_LINKLOCAL(&sin6->sin6_addr)) {
172	sin6->sin6_scope_id =
173	ntohs((u_int16_t )&sin6->sin6_addr.s6_addr[2]);
174	sin6->sin6_addr.s6_addr[2] = sin6->sin6_addr.s6_addr[3] = 0;
175	}
176	#endif
177	}
178
179	static void
180	in6_status(int s __unused, const struct ifaddrs *ifa)
181	{
182	struct sockaddr_in6 *sin, null_sin;
183	struct in6_ifreq ifr6;
184	int s6;
185	u_int32_t flags6;
186	struct in6_addrlifetime lifetime;
187	time_t t = time(NULL);
188	int error;
189	u_int32_t scopeid;
190
191	memset(&null_sin, 0, sizeof(null_sin));
192
193	sin = (struct sockaddr_in6 *)ifa->ifa_addr;
194	if (sin == NULL)
195	return;
196
197	strncpy(ifr6.ifr_name, ifr.ifr_name, sizeof(ifr.ifr_name));
198	if ((s6 = socket(AF_INET6, SOCK_DGRAM, 0)) < 0) {
199	warn("socket(AF_INET6,SOCK_DGRAM)");
200	return;
201	}
202	ifr6.ifr_addr = *sin;
203	if (ioctl(s6, SIOCGIFAFLAG_IN6, &ifr6) < 0) {
204	warn("ioctl(SIOCGIFAFLAG_IN6)");
205	close(s6);
206	return;
207	}
208	flags6 = ifr6.ifr_ifru.ifru_flags6;
209	memset(&lifetime, 0, sizeof(lifetime));
210	ifr6.ifr_addr = *sin;
211	if (ioctl(s6, SIOCGIFALIFETIME_IN6, &ifr6) < 0) {
212	warn("ioctl(SIOCGIFALIFETIME_IN6)");
213	close(s6);
214	return;
215	}
216	lifetime = ifr6.ifr_ifru.ifru_lifetime;
217	close(s6);
218
219	/* XXX: embedded link local addr check */
220	if (IN6_IS_ADDR_LINKLOCAL(&sin->sin6_addr) &&
221	(u_short )&sin->sin6_addr.s6_addr[2] != 0) {
222	u_short index;
223
224	index = (u_short )&sin->sin6_addr.s6_addr[2];
225	(u_short )&sin->sin6_addr.s6_addr[2] = 0;
226	if (sin->sin6_scope_id == 0)
227	sin->sin6_scope_id = ntohs(index);
228	}
229	scopeid = sin->sin6_scope_id;
230
231	error = getnameinfo((struct sockaddr *)sin, sin->sin6_len, addr_buf,
232	sizeof(addr_buf), NULL, 0, NI_NUMERICHOST);
233	if (error != 0)
234	inet_ntop(AF_INET6, &sin->sin6_addr, addr_buf,
235	sizeof(addr_buf));
236	printf("\tinet6 %s ", addr_buf);
237
238	if (ifa->ifa_flags & IFF_POINTOPOINT) {
239	sin = (struct sockaddr_in6 *)ifa->ifa_dstaddr;
240	/*
241	* some of the interfaces do not have valid destination
242	* address.
243	*/
244	if (sin != NULL && sin->sin6_family == AF_INET6) {
245	int error;
246
247	/* XXX: embedded link local addr check */
248	if (IN6_IS_ADDR_LINKLOCAL(&sin->sin6_addr) &&
249	(u_short )&sin->sin6_addr.s6_addr[2] != 0) {
250	u_short index;
251
252	index = (u_short )&sin->sin6_addr.s6_addr[2];
253	(u_short )&sin->sin6_addr.s6_addr[2] = 0;
254	if (sin->sin6_scope_id == 0)
255	sin->sin6_scope_id = ntohs(index);
256	}
257
258	error = getnameinfo((struct sockaddr *)sin,
259	sin->sin6_len, addr_buf,
260	sizeof(addr_buf), NULL, 0,
261	NI_NUMERICHOST);
262	if (error != 0)
263	inet_ntop(AF_INET6, &sin->sin6_addr, addr_buf,
264	sizeof(addr_buf));
265	printf("--> %s ", addr_buf);
266	}
267	}
268
269	sin = (struct sockaddr_in6 *)ifa->ifa_netmask;
270	if (sin == NULL)
271	sin = &null_sin;
272	printf("prefixlen %d ", prefix(&sin->sin6_addr,
273	sizeof(struct in6_addr)));
274
275	if ((flags6 & IN6_IFF_ANYCAST) != 0)
276	printf("anycast ");
277	if ((flags6 & IN6_IFF_TENTATIVE) != 0)
278	printf("tentative ");
279	if ((flags6 & IN6_IFF_DUPLICATED) != 0)
280	printf("duplicated ");
281	if ((flags6 & IN6_IFF_DETACHED) != 0)
282	printf("detached ");
283	if ((flags6 & IN6_IFF_DEPRECATED) != 0)
284	printf("deprecated ");
285	if ((flags6 & IN6_IFF_AUTOCONF) != 0)
286	printf("autoconf ");
287	if ((flags6 & IN6_IFF_TEMPORARY) != 0)
288	printf("temporary ");
289
290	if (scopeid)
291	printf("scopeid 0x%x ", scopeid);
292
293	if (ip6lifetime && (lifetime.ia6t_preferred \|\| lifetime.ia6t_expire)) {
294	printf("pltime ");
295	if (lifetime.ia6t_preferred) {
296	printf("%s ", lifetime.ia6t_preferred < t
297	? "0" : sec2str(lifetime.ia6t_preferred - t));
298	} else
299	printf("infty ");
300
301	printf("vltime ");
302	if (lifetime.ia6t_expire) {
303	printf("%s ", lifetime.ia6t_expire < t
304	? "0" : sec2str(lifetime.ia6t_expire - t));
305	} else
306	printf("infty ");
307	}
308
309	putchar('\n');
310	}
311
312	#define SIN6(x) ((struct sockaddr_in6 *) &(x))
313	static struct sockaddr_in6 *sin6tab[] = {
314	SIN6(in6_ridreq.ifr_addr), SIN6(in6_addreq.ifra_addr),
315	SIN6(in6_addreq.ifra_prefixmask), SIN6(in6_addreq.ifra_dstaddr)
316	};
317
318	static void
319	in6_getprefix(const char *plen, int which)
320	{
321	struct sockaddr_in6 *sin = sin6tab[which];
322	u_char *cp;
323	int len = atoi(plen);
324
325	if ((len < 0) \|\| (len > 128))
326	errx(1, "%s: bad value", plen);
327	sin->sin6_len = sizeof(*sin);
328	if (which != MASK)
329	sin->sin6_family = AF_INET6;
330	if ((len == 0) \|\| (len == 128)) {
331	memset(&sin->sin6_addr, 0xff, sizeof(struct in6_addr));
332	return;
333	}
334	memset((void *)&sin->sin6_addr, 0x00, sizeof(sin->sin6_addr));
335	for (cp = (u_char *)&sin->sin6_addr; len > 7; len -= 8)
336	*cp++ = 0xff;
337	*cp = 0xff << (8 - len);
338	}
339
340	static void
341	in6_getaddr(const char *s, int which)
342	{
343	struct sockaddr_in6 *sin = sin6tab[which];
344	struct addrinfo hints, *res;
345	int error = -1;
346
347	newaddr &= 1;
348
349	sin->sin6_len = sizeof(*sin);
350	if (which != MASK)
351	sin->sin6_family = AF_INET6;
352
353	if (which == ADDR) {
354	char *p = NULL;
355	if((p = strrchr(s, '/')) != NULL) {
356	*p = '\0';
357	in6_getprefix(p + 1, MASK);
358	explicit_prefix = 1;
359	}
360	}
361
362	if (sin->sin6_family == AF_INET6) {
363	bzero(&hints, sizeof(struct addrinfo));
364	hints.ai_family = AF_INET6;
365	error = getaddrinfo(s, NULL, &hints, &res);
366	}
367	if (error != 0) {
368	if (inet_pton(AF_INET6, s, &sin->sin6_addr) != 1)
369	errx(1, "%s: bad value", s);
370	} else
371	bcopy(res->ai_addr, sin, res->ai_addrlen);
372	}
373
374	static int
375	prefix(void *val, int size)
376	{
377	u_char name = (u_char )val;
378	int byte, bit, plen = 0;
379
380	for (byte = 0; byte < size; byte++, plen += 8)
381	if (name[byte] != 0xff)
382	break;
383	if (byte == size)
384	return (plen);
385	for (bit = 7; bit != 0; bit--, plen++)
386	if (!(name[byte] & (1 << bit)))
387	break;
388	for (; bit != 0; bit--)
389	if (name[byte] & (1 << bit))
390	return(0);
391	byte++;
392	for (; byte < size; byte++)
393	if (name[byte])
394	return(0);
395	return (plen);
396	}
397
398	static char *
399	sec2str(time_t total)
400	{
401	static char result[256];
402	int days, hours, mins, secs;
403	int first = 1;
404	char *p = result;
405
406	if (0) {
407	days = total / 3600 / 24;
408	hours = (total / 3600) % 24;
409	mins = (total / 60) % 60;
410	secs = total % 60;
411
412	if (days) {
413	first = 0;
414	p += sprintf(p, "%dd", days);
415	}
416	if (!first \|\| hours) {
417	first = 0;
418	p += sprintf(p, "%dh", hours);
419	}
420	if (!first \|\| mins) {
421	first = 0;
422	p += sprintf(p, "%dm", mins);
423	}
424	sprintf(p, "%ds", secs);
425	} else
426	sprintf(result, "%lu", (unsigned long)total);
427
428	return(result);
429	}
430
431	static void
432	in6_postproc(int s, const struct afswtch *afp)
433	{
434	if (explicit_prefix == 0) {
435	/* Aggregatable address architecture defines all prefixes
436	are 64. So, it is convenient to set prefixlen to 64 if
437	it is not specified. */
438	setifprefixlen("64", 0, s, afp);
439	/* in6_getprefix("64", MASK) if MASK is available here... */
440	}
441	}
442
443	static void
444	in6_status_tunnel(int s)
445	{
446	char src[NI_MAXHOST];
447	char dst[NI_MAXHOST];
448	struct in6_ifreq in6_ifr;
449	const struct sockaddr sa = (const struct sockaddr ) &in6_ifr.ifr_addr;
450
451	memset(&in6_ifr, 0, sizeof(in6_ifr));
452	strncpy(in6_ifr.ifr_name, name, IFNAMSIZ);
453
454	if (ioctl(s, SIOCGIFPSRCADDR_IN6, (caddr_t)&in6_ifr) < 0)
455	return;
456	if (sa->sa_family != AF_INET6)
457	return;
458	in6_fillscopeid(&in6_ifr.ifr_addr);
459	if (getnameinfo(sa, sa->sa_len, src, sizeof(src), 0, 0,
460	NI_NUMERICHOST) != 0)
461	src[0] = '\0';
462
463	if (ioctl(s, SIOCGIFPDSTADDR_IN6, (caddr_t)&in6_ifr) < 0)
464	return;
465	if (sa->sa_family != AF_INET6)
466	return;
467	in6_fillscopeid(&in6_ifr.ifr_addr);
468	if (getnameinfo(sa, sa->sa_len, dst, sizeof(dst), 0, 0,
469	NI_NUMERICHOST) != 0)
470	dst[0] = '\0';
471
472	printf("\ttunnel inet6 %s --> %s\n", src, dst);
473	}
474
475	static void
476	in6_set_tunnel(int s, struct addrinfo srcres, struct addrinfo dstres)
477	{
478	struct in6_aliasreq in6_addreq;
479
480	memset(&in6_addreq, 0, sizeof(in6_addreq));
481	strncpy(in6_addreq.ifra_name, name, IFNAMSIZ);
482	memcpy(&in6_addreq.ifra_addr, srcres->ai_addr, srcres->ai_addr->sa_len);
483	memcpy(&in6_addreq.ifra_dstaddr, dstres->ai_addr,
484	dstres->ai_addr->sa_len);
485
486	if (ioctl(s, SIOCSIFPHYADDR_IN6, &in6_addreq) < 0)
487	warn("SIOCSIFPHYADDR_IN6");
488	}
489
490	static struct cmd inet6_cmds[] = {
491	DEF_CMD_ARG("prefixlen", setifprefixlen),
492	DEF_CMD("anycast", IN6_IFF_ANYCAST, setip6flags),
493	DEF_CMD("tentative", IN6_IFF_TENTATIVE, setip6flags),
494	DEF_CMD("-tentative", -IN6_IFF_TENTATIVE, setip6flags),
495	DEF_CMD("deprecated", IN6_IFF_DEPRECATED, setip6flags),
496	DEF_CMD("-deprecated", -IN6_IFF_DEPRECATED, setip6flags),
497	DEF_CMD("autoconf", IN6_IFF_AUTOCONF, setip6flags),
498	DEF_CMD("-autoconf", -IN6_IFF_AUTOCONF, setip6flags),
499	DEF_CMD("accept_rtadv", ND6_IFF_ACCEPT_RTADV, setnd6flags),
500	DEF_CMD("-accept_rtadv",-ND6_IFF_ACCEPT_RTADV, setnd6flags),
501	DEF_CMD("defaultif", 1, setnd6defif),
502	DEF_CMD("-defaultif", -1, setnd6defif),
503	DEF_CMD("ifdisabled", ND6_IFF_IFDISABLED, setnd6flags),
504	DEF_CMD("-ifdisabled", -ND6_IFF_IFDISABLED, setnd6flags),
505	DEF_CMD("nud", ND6_IFF_PERFORMNUD, setnd6flags),
506	DEF_CMD("-nud", -ND6_IFF_PERFORMNUD, setnd6flags),
507	DEF_CMD("prefer_source",ND6_IFF_PREFER_SOURCE, setnd6flags),
508	DEF_CMD("-prefer_source",-ND6_IFF_PREFER_SOURCE,setnd6flags),
509	DEF_CMD_ARG("pltime", setip6pltime),
510	DEF_CMD_ARG("vltime", setip6vltime),
511	DEF_CMD("eui64", 0, setip6eui64),
512	};
513
514	static struct afswtch af_inet6 = {
515	.af_name = "inet6",
516	.af_af = AF_INET6,
517	.af_status = in6_status,
518	.af_getaddr = in6_getaddr,
519	.af_getprefix = in6_getprefix,
520	.af_postproc = in6_postproc,
521	.af_status_tunnel = in6_status_tunnel,
522	.af_settunnel = in6_set_tunnel,
523	.af_difaddr = SIOCDIFADDR_IN6,
524	.af_aifaddr = SIOCAIFADDR_IN6,
525	.af_ridreq = &in6_addreq,
526	.af_addreq = &in6_addreq,
527	};
528
529	static void
530	in6_Lopt_cb(const char *optarg __unused)
531	{
532	ip6lifetime++; /* print IPv6 address lifetime */
533	}
534	#ifdef __rtems__
535	static struct ifconfig_option in6_Lopt = { .opt = "L", .opt_usage = "[-L]", .cb = in6_Lopt_cb };
536	#else
537	static struct option in6_Lopt = { .opt = "L", .opt_usage = "[-L]", .cb = in6_Lopt_cb };
538	#endif
539
540	static __constructor void
541	inet6_ctor(void)
542	{
543	#define N(a) (sizeof(a) / sizeof(a[0]))
544	size_t i;
545
546	for (i = 0; i < N(inet6_cmds); i++)
547	cmd_register(&inet6_cmds[i]);
548	af_register(&af_inet6);
549	opt_register(&in6_Lopt);
550	#undef N
551	}

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source: rtems-libbsd/freebsd/sbin/ifconfig/af_inet6.c @ e599318

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