2 * Copyright (C) 2004-2007, 2010-2012 Internet Systems Consortium, Inc. ("ISC")
3 * Copyright (C) 1999-2003 Internet Software Consortium.
5 * Permission to use, copy, modify, and/or distribute this software for any
6 * purpose with or without fee is hereby granted, provided that the above
7 * copyright notice and this permission notice appear in all copies.
9 * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
10 * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
11 * AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
12 * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
13 * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
14 * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
15 * PERFORMANCE OF THIS SOFTWARE.
26 #include <isc/buffer.h>
29 #include <isc/netaddr.h>
30 #include <isc/print.h>
31 #include <isc/region.h>
32 #include <isc/sockaddr.h>
33 #include <isc/string.h>
37 isc_sockaddr_equal(const isc_sockaddr_t *a, const isc_sockaddr_t *b) {
38 return (isc_sockaddr_compare(a, b, ISC_SOCKADDR_CMPADDR|
40 ISC_SOCKADDR_CMPSCOPE));
44 isc_sockaddr_eqaddr(const isc_sockaddr_t *a, const isc_sockaddr_t *b) {
45 return (isc_sockaddr_compare(a, b, ISC_SOCKADDR_CMPADDR|
46 ISC_SOCKADDR_CMPSCOPE));
50 isc_sockaddr_compare(const isc_sockaddr_t *a, const isc_sockaddr_t *b,
53 REQUIRE(a != NULL && b != NULL);
55 if (a->length != b->length)
59 * We don't just memcmp because the sin_zero field isn't always
63 if (a->type.sa.sa_family != b->type.sa.sa_family)
65 switch (a->type.sa.sa_family) {
67 if ((flags & ISC_SOCKADDR_CMPADDR) != 0 &&
68 memcmp(&a->type.sin.sin_addr, &b->type.sin.sin_addr,
69 sizeof(a->type.sin.sin_addr)) != 0)
71 if ((flags & ISC_SOCKADDR_CMPPORT) != 0 &&
72 a->type.sin.sin_port != b->type.sin.sin_port)
76 if ((flags & ISC_SOCKADDR_CMPADDR) != 0 &&
77 memcmp(&a->type.sin6.sin6_addr, &b->type.sin6.sin6_addr,
78 sizeof(a->type.sin6.sin6_addr)) != 0)
80 #ifdef ISC_PLATFORM_HAVESCOPEID
82 * If ISC_SOCKADDR_CMPSCOPEZERO is set then don't return
83 * ISC_FALSE if one of the scopes in zero.
85 if ((flags & ISC_SOCKADDR_CMPSCOPE) != 0 &&
86 a->type.sin6.sin6_scope_id != b->type.sin6.sin6_scope_id &&
87 ((flags & ISC_SOCKADDR_CMPSCOPEZERO) == 0 ||
88 (a->type.sin6.sin6_scope_id != 0 &&
89 b->type.sin6.sin6_scope_id != 0)))
92 if ((flags & ISC_SOCKADDR_CMPPORT) != 0 &&
93 a->type.sin6.sin6_port != b->type.sin6.sin6_port)
97 if (memcmp(&a->type, &b->type, a->length) != 0)
104 isc_sockaddr_eqaddrprefix(const isc_sockaddr_t *a, const isc_sockaddr_t *b,
105 unsigned int prefixlen)
107 isc_netaddr_t na, nb;
108 isc_netaddr_fromsockaddr(&na, a);
109 isc_netaddr_fromsockaddr(&nb, b);
110 return (isc_netaddr_eqprefix(&na, &nb, prefixlen));
114 isc_sockaddr_totext(const isc_sockaddr_t *sockaddr, isc_buffer_t *target) {
116 isc_netaddr_t netaddr;
117 char pbuf[sizeof("65000")];
121 REQUIRE(sockaddr != NULL);
124 * Do the port first, giving us the opportunity to check for
125 * unsupported address families before calling
126 * isc_netaddr_fromsockaddr().
128 switch (sockaddr->type.sa.sa_family) {
130 snprintf(pbuf, sizeof(pbuf), "%u", ntohs(sockaddr->type.sin.sin_port));
133 snprintf(pbuf, sizeof(pbuf), "%u", ntohs(sockaddr->type.sin6.sin6_port));
135 #ifdef ISC_PLAFORM_HAVESYSUNH
137 plen = strlen(sockaddr->type.sunix.sun_path);
138 if (plen >= isc_buffer_availablelength(target))
139 return (ISC_R_NOSPACE);
141 isc_buffer_putmem(target, sockaddr->type.sunix.sun_path, plen);
144 * Null terminate after used region.
146 isc_buffer_availableregion(target, &avail);
147 INSIST(avail.length >= 1);
148 avail.base[0] = '\0';
150 return (ISC_R_SUCCESS);
153 return (ISC_R_FAILURE);
157 INSIST(plen < sizeof(pbuf));
159 isc_netaddr_fromsockaddr(&netaddr, sockaddr);
160 result = isc_netaddr_totext(&netaddr, target);
161 if (result != ISC_R_SUCCESS)
164 if (1 + plen + 1 > isc_buffer_availablelength(target))
165 return (ISC_R_NOSPACE);
167 isc_buffer_putmem(target, (const unsigned char *)"#", 1);
168 isc_buffer_putmem(target, (const unsigned char *)pbuf, plen);
171 * Null terminate after used region.
173 isc_buffer_availableregion(target, &avail);
174 INSIST(avail.length >= 1);
175 avail.base[0] = '\0';
177 return (ISC_R_SUCCESS);
181 isc_sockaddr_format(const isc_sockaddr_t *sa, char *array, unsigned int size) {
188 isc_buffer_init(&buf, array, size);
189 result = isc_sockaddr_totext(sa, &buf);
190 if (result != ISC_R_SUCCESS) {
192 * The message is the same as in netaddr.c.
194 snprintf(array, size,
195 isc_msgcat_get(isc_msgcat, ISC_MSGSET_NETADDR,
197 "<unknown address, family %u>"),
198 sa->type.sa.sa_family);
199 array[size - 1] = '\0';
204 isc_sockaddr_hash(const isc_sockaddr_t *sockaddr, isc_boolean_t address_only) {
205 unsigned int length = 0;
206 const unsigned char *s = NULL;
210 const struct in6_addr *in6;
212 REQUIRE(sockaddr != NULL);
214 switch (sockaddr->type.sa.sa_family) {
216 s = (const unsigned char *)&sockaddr->type.sin.sin_addr;
217 p = ntohs(sockaddr->type.sin.sin_port);
218 length = sizeof(sockaddr->type.sin.sin_addr.s_addr);
221 in6 = &sockaddr->type.sin6.sin6_addr;
222 if (IN6_IS_ADDR_V4MAPPED(in6)) {
223 s = (const unsigned char *)&in6[12];
224 length = sizeof(sockaddr->type.sin.sin_addr.s_addr);
226 s = (const unsigned char *)in6;
227 length = sizeof(sockaddr->type.sin6.sin6_addr);
229 p = ntohs(sockaddr->type.sin6.sin6_port);
232 UNEXPECTED_ERROR(__FILE__, __LINE__,
233 isc_msgcat_get(isc_msgcat,
235 ISC_MSG_UNKNOWNFAMILY,
236 "unknown address family: %d"),
237 (int)sockaddr->type.sa.sa_family);
238 s = (const unsigned char *)&sockaddr->type;
239 length = sockaddr->length;
243 h = isc_hash_calc(s, length, ISC_TRUE);
245 g = isc_hash_calc((const unsigned char *)&p, sizeof(p),
247 h = h ^ g; /* XXX: we should concatenate h and p first */
254 isc_sockaddr_any(isc_sockaddr_t *sockaddr)
256 memset(sockaddr, 0, sizeof(*sockaddr));
257 sockaddr->type.sin.sin_family = AF_INET;
258 #ifdef ISC_PLATFORM_HAVESALEN
259 sockaddr->type.sin.sin_len = sizeof(sockaddr->type.sin);
261 sockaddr->type.sin.sin_addr.s_addr = INADDR_ANY;
262 sockaddr->type.sin.sin_port = 0;
263 sockaddr->length = sizeof(sockaddr->type.sin);
264 ISC_LINK_INIT(sockaddr, link);
268 isc_sockaddr_any6(isc_sockaddr_t *sockaddr)
270 memset(sockaddr, 0, sizeof(*sockaddr));
271 sockaddr->type.sin6.sin6_family = AF_INET6;
272 #ifdef ISC_PLATFORM_HAVESALEN
273 sockaddr->type.sin6.sin6_len = sizeof(sockaddr->type.sin6);
275 sockaddr->type.sin6.sin6_addr = in6addr_any;
276 sockaddr->type.sin6.sin6_port = 0;
277 sockaddr->length = sizeof(sockaddr->type.sin6);
278 ISC_LINK_INIT(sockaddr, link);
282 isc_sockaddr_fromin(isc_sockaddr_t *sockaddr, const struct in_addr *ina,
285 memset(sockaddr, 0, sizeof(*sockaddr));
286 sockaddr->type.sin.sin_family = AF_INET;
287 #ifdef ISC_PLATFORM_HAVESALEN
288 sockaddr->type.sin.sin_len = sizeof(sockaddr->type.sin);
290 sockaddr->type.sin.sin_addr = *ina;
291 sockaddr->type.sin.sin_port = htons(port);
292 sockaddr->length = sizeof(sockaddr->type.sin);
293 ISC_LINK_INIT(sockaddr, link);
297 isc_sockaddr_anyofpf(isc_sockaddr_t *sockaddr, int pf) {
300 isc_sockaddr_any(sockaddr);
303 isc_sockaddr_any6(sockaddr);
311 isc_sockaddr_fromin6(isc_sockaddr_t *sockaddr, const struct in6_addr *ina6,
314 memset(sockaddr, 0, sizeof(*sockaddr));
315 sockaddr->type.sin6.sin6_family = AF_INET6;
316 #ifdef ISC_PLATFORM_HAVESALEN
317 sockaddr->type.sin6.sin6_len = sizeof(sockaddr->type.sin6);
319 sockaddr->type.sin6.sin6_addr = *ina6;
320 sockaddr->type.sin6.sin6_port = htons(port);
321 sockaddr->length = sizeof(sockaddr->type.sin6);
322 ISC_LINK_INIT(sockaddr, link);
326 isc_sockaddr_v6fromin(isc_sockaddr_t *sockaddr, const struct in_addr *ina,
329 memset(sockaddr, 0, sizeof(*sockaddr));
330 sockaddr->type.sin6.sin6_family = AF_INET6;
331 #ifdef ISC_PLATFORM_HAVESALEN
332 sockaddr->type.sin6.sin6_len = sizeof(sockaddr->type.sin6);
334 sockaddr->type.sin6.sin6_addr.s6_addr[10] = 0xff;
335 sockaddr->type.sin6.sin6_addr.s6_addr[11] = 0xff;
336 memcpy(&sockaddr->type.sin6.sin6_addr.s6_addr[12], ina, 4);
337 sockaddr->type.sin6.sin6_port = htons(port);
338 sockaddr->length = sizeof(sockaddr->type.sin6);
339 ISC_LINK_INIT(sockaddr, link);
343 isc_sockaddr_pf(const isc_sockaddr_t *sockaddr) {
346 * Get the protocol family of 'sockaddr'.
349 #if (AF_INET == PF_INET && AF_INET6 == PF_INET6)
351 * Assume that PF_xxx == AF_xxx for all AF and PF.
353 return (sockaddr->type.sa.sa_family);
355 switch (sockaddr->type.sa.sa_family) {
361 FATAL_ERROR(__FILE__, __LINE__,
362 isc_msgcat_get(isc_msgcat, ISC_MSGSET_SOCKADDR,
363 ISC_MSG_UNKNOWNFAMILY,
364 "unknown address family: %d"),
365 (int)sockaddr->type.sa.sa_family);
371 isc_sockaddr_fromnetaddr(isc_sockaddr_t *sockaddr, const isc_netaddr_t *na,
374 memset(sockaddr, 0, sizeof(*sockaddr));
375 sockaddr->type.sin.sin_family = na->family;
376 switch (na->family) {
378 sockaddr->length = sizeof(sockaddr->type.sin);
379 #ifdef ISC_PLATFORM_HAVESALEN
380 sockaddr->type.sin.sin_len = sizeof(sockaddr->type.sin);
382 sockaddr->type.sin.sin_addr = na->type.in;
383 sockaddr->type.sin.sin_port = htons(port);
386 sockaddr->length = sizeof(sockaddr->type.sin6);
387 #ifdef ISC_PLATFORM_HAVESALEN
388 sockaddr->type.sin6.sin6_len = sizeof(sockaddr->type.sin6);
390 memcpy(&sockaddr->type.sin6.sin6_addr, &na->type.in6, 16);
391 #ifdef ISC_PLATFORM_HAVESCOPEID
392 sockaddr->type.sin6.sin6_scope_id = isc_netaddr_getzone(na);
394 sockaddr->type.sin6.sin6_port = htons(port);
399 ISC_LINK_INIT(sockaddr, link);
403 isc_sockaddr_setport(isc_sockaddr_t *sockaddr, in_port_t port) {
404 switch (sockaddr->type.sa.sa_family) {
406 sockaddr->type.sin.sin_port = htons(port);
409 sockaddr->type.sin6.sin6_port = htons(port);
412 FATAL_ERROR(__FILE__, __LINE__,
413 isc_msgcat_get(isc_msgcat, ISC_MSGSET_SOCKADDR,
414 ISC_MSG_UNKNOWNFAMILY,
415 "unknown address family: %d"),
416 (int)sockaddr->type.sa.sa_family);
421 isc_sockaddr_getport(const isc_sockaddr_t *sockaddr) {
424 switch (sockaddr->type.sa.sa_family) {
426 port = ntohs(sockaddr->type.sin.sin_port);
429 port = ntohs(sockaddr->type.sin6.sin6_port);
432 FATAL_ERROR(__FILE__, __LINE__,
433 isc_msgcat_get(isc_msgcat, ISC_MSGSET_SOCKADDR,
434 ISC_MSG_UNKNOWNFAMILY,
435 "unknown address family: %d"),
436 (int)sockaddr->type.sa.sa_family);
443 isc_sockaddr_ismulticast(const isc_sockaddr_t *sockaddr) {
444 isc_netaddr_t netaddr;
446 if (sockaddr->type.sa.sa_family == AF_INET ||
447 sockaddr->type.sa.sa_family == AF_INET6) {
448 isc_netaddr_fromsockaddr(&netaddr, sockaddr);
449 return (isc_netaddr_ismulticast(&netaddr));
455 isc_sockaddr_isexperimental(const isc_sockaddr_t *sockaddr) {
456 isc_netaddr_t netaddr;
458 if (sockaddr->type.sa.sa_family == AF_INET) {
459 isc_netaddr_fromsockaddr(&netaddr, sockaddr);
460 return (isc_netaddr_isexperimental(&netaddr));
466 isc_sockaddr_issitelocal(const isc_sockaddr_t *sockaddr) {
467 isc_netaddr_t netaddr;
469 if (sockaddr->type.sa.sa_family == AF_INET6) {
470 isc_netaddr_fromsockaddr(&netaddr, sockaddr);
471 return (isc_netaddr_issitelocal(&netaddr));
477 isc_sockaddr_islinklocal(const isc_sockaddr_t *sockaddr) {
478 isc_netaddr_t netaddr;
480 if (sockaddr->type.sa.sa_family == AF_INET6) {
481 isc_netaddr_fromsockaddr(&netaddr, sockaddr);
482 return (isc_netaddr_islinklocal(&netaddr));
488 isc_sockaddr_frompath(isc_sockaddr_t *sockaddr, const char *path) {
489 #ifdef ISC_PLATFORM_HAVESYSUNH
490 if (strlen(path) >= sizeof(sockaddr->type.sunix.sun_path))
491 return (ISC_R_NOSPACE);
492 memset(sockaddr, 0, sizeof(*sockaddr));
493 sockaddr->length = sizeof(sockaddr->type.sunix);
494 sockaddr->type.sunix.sun_family = AF_UNIX;
495 #ifdef ISC_PLATFORM_HAVESALEN
496 sockaddr->type.sunix.sun_len =
497 (unsigned char)sizeof(sockaddr->type.sunix);
499 strcpy(sockaddr->type.sunix.sun_path, path);
500 return (ISC_R_SUCCESS);
504 return (ISC_R_NOTIMPLEMENTED);