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41d93087 | 1 | /* |
41d93087 | 2 | * DEBUG: section 14 IP Storage and Handling |
3 | * AUTHOR: Amos Jeffries | |
4 | * | |
5 | * SQUID Internet Object Cache http://squid.nlanr.net/Squid/ | |
6 | * ---------------------------------------------------------- | |
7 | * | |
8 | * Squid is the result of efforts by numerous individuals from the | |
9 | * Internet community. Development is led by Duane Wessels of the | |
10 | * National Laboratory for Applied Network Research and funded by the | |
11 | * National Science Foundation. Squid is Copyrighted (C) 1998 by | |
12 | * the Regents of the University of California. Please see the | |
13 | * COPYRIGHT file for full details. Squid incorporates software | |
14 | * developed and/or copyrighted by other sources. Please see the | |
15 | * CREDITS file for full details. | |
16 | * | |
b7ac5457 | 17 | * This Ip::Address code is copyright (C) 2007 by Treehouse Networks Ltd |
41d93087 | 18 | * of New Zealand. It is published and Lisenced as an extension of |
19 | * squid under the same conditions as the main squid application. | |
20 | * | |
21 | * This program is free software; you can redistribute it and/or modify | |
22 | * it under the terms of the GNU General Public License as published by | |
23 | * the Free Software Foundation; either version 2 of the License, or | |
24 | * (at your option) any later version. | |
26ac0430 | 25 | * |
41d93087 | 26 | * This program is distributed in the hope that it will be useful, |
27 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
28 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
29 | * GNU General Public License for more details. | |
26ac0430 | 30 | * |
41d93087 | 31 | * You should have received a copy of the GNU General Public License |
32 | * along with this program; if not, write to the Free Software | |
33 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA. | |
34 | * | |
35 | */ | |
36 | ||
37 | #include "config.h" | |
27bc2077 AJ |
38 | #include "compat/inet_ntop.h" |
39 | #include "compat/getaddrinfo.h" | |
82b7abe3 | 40 | #include "Debug.h" |
9837e5f0 | 41 | #include "ip/IpAddress.h" |
1ef0b9ce AJ |
42 | #include "util.h" |
43 | ||
41d93087 | 44 | #if HAVE_ASSERT_H |
45 | #include <assert.h> | |
46 | #endif | |
41d93087 | 47 | #if HAVE_STRING_H |
48 | #include <string.h> | |
49 | #endif | |
50 | #if HAVE_ARPA_INET_H | |
489520a9 AJ |
51 | /* for inet_ntoa() */ |
52 | #include <arpa/inet.h> | |
41d93087 | 53 | #endif |
54 | ||
41d93087 | 55 | #ifdef INET6 |
56 | #error "INET6 defined but has been deprecated! Try running bootstrap and configure again." | |
57 | #endif | |
58 | ||
41d93087 | 59 | #if !USE_IPV6 |
60 | // So there are some places where I will drop to using Macros too. | |
61 | // At least I can restrict them to this file so they don't corrupt the app with C code. | |
62 | # define sin6_addr sin_addr | |
63 | # define sin6_port sin_port | |
64 | # define sin6_family sin_family | |
65 | #undef s6_addr | |
66 | # define s6_addr s_addr | |
67 | #endif | |
68 | ||
41d93087 | 69 | /* Debugging only. Dump the address content when a fatal assert is encountered. */ |
70 | #if USE_IPV6 | |
71 | #define IASSERT(a,b) \ | |
68b313c2 | 72 | if(!(b)){ printf("assert \"%s\" at line %d\n", a, __LINE__); \ |
b7ac5457 | 73 | printf("Ip::Address invalid? with IsIPv4()=%c, IsIPv6()=%c\n",(IsIPv4()?'T':'F'),(IsIPv6()?'T':'F')); \ |
41d93087 | 74 | printf("ADDRESS:"); \ |
75 | for(unsigned int i = 0; i < sizeof(m_SocketAddr.sin6_addr); i++) { \ | |
76 | printf(" %x", m_SocketAddr.sin6_addr.s6_addr[i]); \ | |
77 | } printf("\n"); assert(b); \ | |
78 | } | |
79 | #else | |
80 | #define IASSERT(a,b) \ | |
68b313c2 | 81 | if(!(b)){ printf("assert \"%s\" at line %d\n", a, __LINE__); \ |
b7ac5457 | 82 | printf("Ip::Address invalid? with IsIPv4()=%c, IsIPv6()=%c\n",(IsIPv4()?'T':'F'),(IsIPv6()?'T':'F')); \ |
41d93087 | 83 | printf("ADDRESS: %x\n", (unsigned int)m_SocketAddr.sin_addr.s_addr); \ |
84 | assert(b); \ | |
85 | } | |
86 | #endif | |
87 | ||
b7ac5457 | 88 | Ip::Address::Address() |
41d93087 | 89 | { |
90 | SetEmpty(); | |
91 | } | |
92 | ||
b7ac5457 | 93 | Ip::Address::~Address() |
41d93087 | 94 | { |
b7ac5457 | 95 | memset(this,0,sizeof(Ip::Address)); |
41d93087 | 96 | } |
97 | ||
98 | int | |
b7ac5457 | 99 | Ip::Address::GetCIDR() const |
41d93087 | 100 | { |
101 | uint8_t shift,byte; | |
102 | uint8_t bit,caught; | |
103 | int len = 0; | |
104 | #if USE_IPV6 | |
df9617b9 | 105 | const uint8_t *ptr= m_SocketAddr.sin6_addr.s6_addr; |
41d93087 | 106 | #else |
df9617b9 | 107 | const uint8_t *ptr= (uint8_t *)&m_SocketAddr.sin_addr.s_addr; |
41d93087 | 108 | #endif |
109 | ||
110 | /* Let's scan all the bits from Most Significant to Least */ | |
111 | /* Until we find an "0" bit. Then, we return */ | |
112 | shift=0; | |
113 | ||
114 | #if USE_IPV6 | |
115 | /* return IPv4 CIDR for any Mapped address */ | |
116 | /* Thus only check the mapped bit */ | |
117 | ||
26ac0430 | 118 | if ( !IsIPv6() ) { |
41d93087 | 119 | shift = 12; |
120 | } | |
121 | ||
122 | #endif | |
123 | ||
e1381638 | 124 | for (; shift<sizeof(m_SocketAddr.sin6_addr) ; shift++) { |
41d93087 | 125 | byte= *(ptr+shift); |
126 | ||
127 | if (byte == 0xFF) { | |
128 | len += 8; | |
129 | continue ; /* A short-cut */ | |
130 | } | |
131 | ||
132 | for (caught = 0 , bit= 7 ; !caught && (bit <= 7); bit--) { | |
133 | caught = ((byte & 0x80) == 0x00); /* Found a '0' at 'bit' ? */ | |
134 | ||
135 | if (!caught) | |
136 | len++; | |
137 | ||
138 | byte <<= 1; | |
139 | } | |
140 | ||
141 | if (caught) | |
142 | break; /* We have found the most significant "0" bit. */ | |
143 | } | |
144 | ||
145 | return len; | |
146 | } | |
147 | ||
b7ac5457 AJ |
148 | const int |
149 | Ip::Address::ApplyMask(Ip::Address const &mask_addr) | |
41d93087 | 150 | { |
151 | uint32_t *p1 = (uint32_t*)(&m_SocketAddr.sin6_addr); | |
152 | uint32_t const *p2 = (uint32_t const *)(&mask_addr.m_SocketAddr.sin6_addr); | |
153 | unsigned int blen = sizeof(m_SocketAddr.sin6_addr)/sizeof(uint32_t); | |
154 | unsigned int changes = 0; | |
155 | ||
156 | for (unsigned int i = 0; i < blen; i++) { | |
26ac0430 | 157 | if ((p1[i] & p2[i]) != p1[i]) |
41d93087 | 158 | changes++; |
159 | ||
160 | p1[i] &= p2[i]; | |
161 | } | |
162 | ||
b5587d15 AJ |
163 | /* we have found a situation where mask forms or destroys a IPv4 map. */ |
164 | check4Mapped(); | |
165 | ||
41d93087 | 166 | return changes; |
167 | } | |
168 | ||
b7ac5457 AJ |
169 | bool |
170 | Ip::Address::ApplyMask(const unsigned int cidr, int mtype) | |
41d93087 | 171 | { |
172 | uint8_t clearbits = 0; | |
173 | uint8_t* p = NULL; | |
174 | ||
175 | #if !USE_IPV6 | |
176 | IASSERT("mtype != AF_INET6", mtype != AF_INET6); /* using IPv6 in IPv4 is invalid. */ | |
177 | ||
26ac0430 | 178 | if (mtype == AF_UNSPEC) |
41d93087 | 179 | mtype = AF_INET; |
180 | ||
181 | #else | |
26ac0430 | 182 | if (mtype == AF_UNSPEC) |
41d93087 | 183 | mtype = AF_INET6; |
184 | ||
185 | #endif | |
186 | ||
187 | // validation and short-cuts. | |
188 | if (cidr > 128) | |
189 | return false; | |
190 | ||
191 | if (cidr > 32 && mtype == AF_INET) | |
192 | return false; | |
193 | ||
2c1b9590 AJ |
194 | if (cidr == 0) { |
195 | /* CIDR /0 is NoAddr regardless of the IPv4/IPv6 protocol */ | |
196 | SetNoAddr(); | |
197 | return true; | |
198 | } | |
199 | ||
41d93087 | 200 | clearbits = (uint8_t)( (mtype==AF_INET6?128:32) -cidr); |
201 | ||
202 | // short-cut | |
26ac0430 | 203 | if (clearbits == 0) |
41d93087 | 204 | return true; |
205 | ||
206 | #if USE_IPV6 | |
207 | ||
208 | p = (uint8_t*)(&m_SocketAddr.sin6_addr) + 15; | |
209 | ||
210 | #else | |
211 | ||
212 | p = (uint8_t*)(&m_SocketAddr.sin_addr) + 3; | |
213 | ||
214 | #endif | |
215 | ||
216 | for (; clearbits>0 && p >= (uint8_t*)&m_SocketAddr.sin6_addr ; p-- ) { | |
26ac0430 | 217 | if (clearbits < 8) { |
41d93087 | 218 | *p &= ((0xFF << clearbits) & 0xFF); |
219 | clearbits = 0; | |
220 | } else { | |
221 | *p &= 0x00; | |
222 | clearbits -= 8; | |
223 | } | |
224 | } | |
225 | ||
226 | return true; | |
227 | } | |
228 | ||
b7ac5457 AJ |
229 | bool |
230 | Ip::Address::IsSockAddr() const | |
41d93087 | 231 | { |
232 | return (m_SocketAddr.sin6_port != 0); | |
233 | } | |
234 | ||
b7ac5457 AJ |
235 | bool |
236 | Ip::Address::IsIPv4() const | |
41d93087 | 237 | { |
238 | #if USE_IPV6 | |
2c8fff41 | 239 | return IsAnyAddr() || IsNoAddr() || IN6_IS_ADDR_V4MAPPED( &m_SocketAddr.sin6_addr ); |
41d93087 | 240 | #else |
241 | return true; // enforce IPv4 in IPv4-only mode. | |
242 | #endif | |
243 | } | |
244 | ||
b7ac5457 AJ |
245 | bool |
246 | Ip::Address::IsIPv6() const | |
41d93087 | 247 | { |
248 | #if USE_IPV6 | |
2c8fff41 | 249 | return IsAnyAddr() || IsNoAddr() || !IN6_IS_ADDR_V4MAPPED( &m_SocketAddr.sin6_addr ); |
41d93087 | 250 | #else |
251 | return false; // enforce IPv4 in IPv4-only mode. | |
252 | #endif | |
253 | } | |
254 | ||
b7ac5457 AJ |
255 | bool |
256 | Ip::Address::IsAnyAddr() const | |
41d93087 | 257 | { |
258 | #if USE_IPV6 | |
2c8fff41 | 259 | return IN6_IS_ADDR_UNSPECIFIED( &m_SocketAddr.sin6_addr ); |
41d93087 | 260 | #else |
41d93087 | 261 | return (INADDR_ANY == m_SocketAddr.sin_addr.s_addr); |
262 | #endif | |
263 | } | |
264 | ||
265 | /// NOTE: Does NOT clear the Port stored. Ony the Address and Type. | |
b7ac5457 AJ |
266 | void |
267 | Ip::Address::SetAnyAddr() | |
41d93087 | 268 | { |
269 | #if USE_IPV6 | |
270 | memset(&m_SocketAddr.sin6_addr, 0, sizeof(struct in6_addr) ); | |
271 | #else | |
272 | memset(&m_SocketAddr.sin_addr, 0, sizeof(struct in_addr) ); | |
273 | #endif | |
274 | } | |
275 | ||
b7ac5457 AJ |
276 | /// NOTE: completely empties the Ip::Address structure. Address, Port, Type, everything. |
277 | void | |
278 | Ip::Address::SetEmpty() | |
41d93087 | 279 | { |
280 | memset(&m_SocketAddr, 0, sizeof(m_SocketAddr) ); | |
281 | } | |
282 | ||
41d93087 | 283 | #if USE_IPV6 |
b7ac5457 | 284 | const struct in6_addr Ip::Address::v4_localhost = {{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
d5b4b6c7 | 285 | 0x00, 0x00, 0xff, 0xff, 0x7f, 0x00, 0x00, 0x01 }} |
c0248e14 | 286 | }; |
b7ac5457 | 287 | const struct in6_addr Ip::Address::v4_anyaddr = {{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
d5b4b6c7 | 288 | 0x00, 0x00, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00 }} |
c0248e14 | 289 | }; |
b7ac5457 | 290 | const struct in6_addr Ip::Address::v6_noaddr = {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, |
d5b4b6c7 | 291 | 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }} |
c0248e14 HN |
292 | }; |
293 | #endif | |
294 | ||
41d93087 | 295 | |
b7ac5457 AJ |
296 | bool |
297 | Ip::Address::SetIPv4() | |
c0248e14 HN |
298 | { |
299 | #if USE_IPV6 | |
26ac0430 | 300 | if ( IsLocalhost() ) { |
2c8fff41 | 301 | m_SocketAddr.sin6_addr = v4_localhost; |
41d93087 | 302 | return true; |
303 | } | |
41d93087 | 304 | |
26ac0430 | 305 | if ( IsAnyAddr() ) { |
c0248e14 | 306 | m_SocketAddr.sin6_addr = v4_anyaddr; |
41d93087 | 307 | return true; |
308 | } | |
309 | ||
26ac0430 | 310 | if ( IsIPv4()) |
41d93087 | 311 | return true; |
312 | ||
313 | // anything non-IPv4 and non-convertable is BAD. | |
314 | return false; | |
315 | #else | |
316 | return true; // Always IPv4 in IPv4-only builds. | |
317 | #endif | |
318 | } | |
319 | ||
b7ac5457 AJ |
320 | bool |
321 | Ip::Address::IsLocalhost() const | |
41d93087 | 322 | { |
323 | #if USE_IPV6 | |
2c8fff41 AJ |
324 | return IN6_IS_ADDR_LOOPBACK( &m_SocketAddr.sin6_addr ) || IN6_ARE_ADDR_EQUAL( &m_SocketAddr.sin6_addr, &v4_localhost ); |
325 | #else | |
41d93087 | 326 | return (htonl(0x7F000001) == m_SocketAddr.sin_addr.s_addr); |
327 | #endif | |
328 | } | |
329 | ||
b7ac5457 AJ |
330 | void |
331 | Ip::Address::SetLocalhost() | |
41d93087 | 332 | { |
333 | #if USE_IPV6 | |
01ed4c98 | 334 | m_SocketAddr.sin6_addr = in6addr_loopback; |
41d93087 | 335 | m_SocketAddr.sin6_family = AF_INET6; |
41d93087 | 336 | #else |
337 | m_SocketAddr.sin_addr.s_addr = htonl(0x7F000001); | |
338 | m_SocketAddr.sin_family = AF_INET; | |
339 | #endif | |
340 | } | |
341 | ||
b7ac5457 AJ |
342 | bool |
343 | Ip::Address::IsSiteLocal6() const | |
a98c2da5 AJ |
344 | { |
345 | #if USE_IPV6 | |
01ed4c98 | 346 | return IN6_IS_ADDR_SITELOCAL( &m_SocketAddr.sin6_addr ); |
a98c2da5 AJ |
347 | #else |
348 | return false; | |
349 | #endif | |
350 | } | |
351 | ||
b7ac5457 AJ |
352 | bool |
353 | Ip::Address::IsSlaac() const | |
a98c2da5 AJ |
354 | { |
355 | #if USE_IPV6 | |
2c8fff41 AJ |
356 | return m_SocketAddr.sin6_addr.s6_addr[10] == htons(0xff) && |
357 | m_SocketAddr.sin6_addr.s6_addr[11] == htons(0xfe); | |
a98c2da5 AJ |
358 | #else |
359 | return false; | |
360 | #endif | |
361 | } | |
362 | ||
b7ac5457 AJ |
363 | bool |
364 | Ip::Address::IsNoAddr() const | |
41d93087 | 365 | { |
366 | // IFF the address == 0xff..ff (all ones) | |
367 | #if USE_IPV6 | |
2c8fff41 AJ |
368 | return IN6_ARE_ADDR_EQUAL( &m_SocketAddr.sin6_addr, &v6_noaddr ); |
369 | #else | |
41d93087 | 370 | return 0xFFFFFFFF == m_SocketAddr.sin_addr.s_addr; |
371 | #endif | |
372 | } | |
373 | ||
b7ac5457 AJ |
374 | void |
375 | Ip::Address::SetNoAddr() | |
41d93087 | 376 | { |
377 | #if USE_IPV6 | |
c0248e14 | 378 | memset(&m_SocketAddr.sin6_addr, 0xFF, sizeof(struct in6_addr) ); |
41d93087 | 379 | m_SocketAddr.sin6_family = AF_INET6; |
380 | #else | |
c0248e14 | 381 | memset(&m_SocketAddr.sin_addr, 0xFF, sizeof(struct in_addr) ); |
41d93087 | 382 | m_SocketAddr.sin_family = AF_INET; |
383 | #endif | |
384 | } | |
385 | ||
386 | #if USE_IPV6 | |
b7ac5457 AJ |
387 | bool |
388 | Ip::Address::GetReverseString6(char buf[MAX_IPSTRLEN], const struct in6_addr &dat) const | |
41d93087 | 389 | { |
390 | char *p = buf; | |
391 | unsigned char const *r = dat.s6_addr; | |
392 | ||
393 | /* RFC1886 says: */ | |
394 | /* 4321:0:1:2:3:4:567:89ab */ | |
395 | /* must be sent */ | |
396 | /* b.a.9.8.7.6.5.0.4.0.0.0.3.0.0.0.2.0.0.0.1.0.0.0.0.0.0.0.1.2.3.4.ip6.int. */ | |
397 | ||
398 | /* Work from the binary field. Anything else may have representation changes. */ | |
399 | /* The sin6_port and sin6_addr members shall be in network byte order. */ | |
400 | ||
401 | /* Compile Err: 'Too many arguments for format. */ | |
402 | ||
26ac0430 | 403 | for (int i = 15; i >= 0; i--, p+=4) { |
41d93087 | 404 | snprintf(p, 5, "%x.%x.", ((r[i])&0xf), (((r[i])>>4)&0xf) ); |
405 | } | |
406 | ||
407 | /* RFC3152 says: */ | |
408 | /* ip6.int is now deprecated TLD, use ip6.arpa instead. */ | |
409 | snprintf(p,10,"ip6.arpa."); | |
410 | ||
411 | return true; | |
412 | } | |
41d93087 | 413 | #endif |
414 | ||
b7ac5457 AJ |
415 | bool |
416 | Ip::Address::GetReverseString4(char buf[MAX_IPSTRLEN], const struct in_addr &dat) const | |
41d93087 | 417 | { |
418 | unsigned int i = (unsigned int) ntohl(dat.s_addr); | |
419 | snprintf(buf, 32, "%u.%u.%u.%u.in-addr.arpa.", | |
420 | i & 255, | |
421 | (i >> 8) & 255, | |
422 | (i >> 16) & 255, | |
423 | (i >> 24) & 255); | |
424 | return true; | |
425 | } | |
426 | ||
b7ac5457 AJ |
427 | bool |
428 | Ip::Address::GetReverseString(char buf[MAX_IPSTRLEN], int show_type) const | |
41d93087 | 429 | { |
430 | ||
26ac0430 | 431 | if (show_type == AF_UNSPEC) { |
41d93087 | 432 | #if USE_IPV6 |
433 | show_type = IsIPv6() ? AF_INET6 : AF_INET ; | |
434 | #else | |
435 | show_type = AF_INET; | |
436 | #endif | |
437 | } | |
438 | ||
439 | if (show_type == AF_INET && IsIPv4()) { | |
440 | #if USE_IPV6 | |
2c8fff41 AJ |
441 | struct in_addr* tmp = (struct in_addr*)&m_SocketAddr.sin6_addr.s6_addr[12]; |
442 | return GetReverseString4(buf, *tmp); | |
41d93087 | 443 | } else if ( show_type == AF_INET6 && IsIPv6() ) { |
444 | return GetReverseString6(buf, m_SocketAddr.sin6_addr); | |
445 | #else | |
446 | return GetReverseString4(buf, m_SocketAddr.sin_addr); | |
447 | #endif | |
448 | } | |
449 | ||
450 | debugs(14,0, "Unable to convert '" << NtoA(buf,MAX_IPSTRLEN) << "' to the rDNS type requested."); | |
451 | ||
452 | buf[0] = '\0'; | |
453 | ||
454 | return false; | |
455 | } | |
456 | ||
b7ac5457 AJ |
457 | Ip::Address& |
458 | Ip::Address::operator =(const Ip::Address &s) | |
41d93087 | 459 | { |
b7ac5457 | 460 | memcpy(this, &s, sizeof(Ip::Address)); |
41d93087 | 461 | return *this; |
462 | }; | |
463 | ||
b7ac5457 | 464 | Ip::Address::Address(const char*s) |
41d93087 | 465 | { |
466 | SetEmpty(); | |
467 | operator=(s); | |
468 | } | |
469 | ||
b7ac5457 AJ |
470 | bool |
471 | Ip::Address::operator =(const char* s) | |
41d93087 | 472 | { |
473 | return LookupHostIP(s, true); | |
474 | } | |
475 | ||
b7ac5457 AJ |
476 | bool |
477 | Ip::Address::GetHostByName(const char* s) | |
41d93087 | 478 | { |
479 | return LookupHostIP(s, false); | |
480 | } | |
481 | ||
b7ac5457 AJ |
482 | bool |
483 | Ip::Address::LookupHostIP(const char *s, bool nodns) | |
41d93087 | 484 | { |
485 | int err = 0; | |
486 | ||
487 | short port = 0; | |
488 | ||
489 | struct addrinfo *res = NULL; | |
490 | ||
491 | struct addrinfo want; | |
492 | ||
493 | memset(&want, 0, sizeof(struct addrinfo)); | |
26ac0430 | 494 | if (nodns) { |
41d93087 | 495 | want.ai_flags = AI_NUMERICHOST; // prevent actual DNS lookups! |
496 | } | |
497 | #if !USE_IPV6 | |
498 | want.ai_family = AF_INET; | |
499 | #endif | |
500 | ||
27bc2077 AJ |
501 | if ( (err = getaddrinfo(s, NULL, &want, &res)) != 0) { |
502 | debugs(14,3, HERE << "Given Bad IP '" << s << "': " << gai_strerror(err) ); | |
503 | /* free the memory getaddrinfo() dynamically allocated. */ | |
26ac0430 | 504 | if (res) { |
27bc2077 | 505 | freeaddrinfo(res); |
41d93087 | 506 | res = NULL; |
507 | } | |
508 | return false; | |
509 | } | |
510 | ||
511 | /* | |
512 | * NP: =(sockaddr_*) may alter the port. we don't want that. | |
513 | * all we have been given as input was an IPA. | |
514 | */ | |
515 | port = GetPort(); | |
516 | operator=(*res); | |
517 | SetPort(port); | |
518 | ||
27bc2077 AJ |
519 | /* free the memory getaddrinfo() dynamically allocated. */ |
520 | freeaddrinfo(res); | |
41d93087 | 521 | |
522 | res = NULL; | |
523 | ||
524 | return true; | |
525 | } | |
526 | ||
b7ac5457 | 527 | Ip::Address::Address(struct sockaddr_in const &s) |
41d93087 | 528 | { |
529 | SetEmpty(); | |
530 | operator=(s); | |
531 | }; | |
532 | ||
b7ac5457 AJ |
533 | Ip::Address & |
534 | Ip::Address::operator =(struct sockaddr_in const &s) | |
41d93087 | 535 | { |
536 | #if USE_IPV6 | |
537 | Map4to6((const in_addr)s.sin_addr, m_SocketAddr.sin6_addr); | |
538 | m_SocketAddr.sin6_port = s.sin_port; | |
539 | m_SocketAddr.sin6_family = AF_INET6; | |
540 | #else | |
541 | ||
542 | memcpy(&m_SocketAddr, &s, sizeof(struct sockaddr_in)); | |
543 | #endif | |
544 | ||
b5587d15 AJ |
545 | /* maintain stored family values properly */ |
546 | check4Mapped(); | |
547 | ||
41d93087 | 548 | return *this; |
549 | }; | |
550 | ||
b7ac5457 AJ |
551 | Ip::Address & |
552 | Ip::Address::operator =(const struct sockaddr_storage &s) | |
0e1a47f0 AJ |
553 | { |
554 | #if USE_IPV6 | |
555 | /* some AF_* magic to tell socket types apart and what we need to do */ | |
26ac0430 | 556 | if (s.ss_family == AF_INET6) { |
0e1a47f0 | 557 | memcpy(&m_SocketAddr, &s, sizeof(struct sockaddr_in)); |
26ac0430 | 558 | } else { // convert it to our storage mapping. |
0e1a47f0 AJ |
559 | struct sockaddr_in *sin = (struct sockaddr_in*)&s; |
560 | m_SocketAddr.sin6_port = sin->sin_port; | |
561 | Map4to6( sin->sin_addr, m_SocketAddr.sin6_addr); | |
562 | } | |
563 | #else | |
564 | memcpy(&m_SocketAddr, &s, sizeof(struct sockaddr_in)); | |
565 | #endif | |
566 | return *this; | |
567 | }; | |
568 | ||
b7ac5457 AJ |
569 | void |
570 | Ip::Address::check4Mapped() | |
b5587d15 AJ |
571 | { |
572 | // obsolete. | |
573 | // TODO use this NOW to set the sin6_family properly on exporting. not on import. | |
574 | } | |
575 | ||
41d93087 | 576 | #if USE_IPV6 |
b7ac5457 | 577 | Ip::Address::Address(struct sockaddr_in6 const &s) |
41d93087 | 578 | { |
579 | SetEmpty(); | |
580 | operator=(s); | |
581 | }; | |
582 | ||
b7ac5457 AJ |
583 | Ip::Address & |
584 | Ip::Address::operator =(struct sockaddr_in6 const &s) | |
41d93087 | 585 | { |
586 | memcpy(&m_SocketAddr, &s, sizeof(struct sockaddr_in6)); | |
b5587d15 AJ |
587 | |
588 | /* maintain address family properly */ | |
589 | check4Mapped(); | |
41d93087 | 590 | return *this; |
591 | }; | |
41d93087 | 592 | #endif |
593 | ||
b7ac5457 | 594 | Ip::Address::Address(struct in_addr const &s) |
41d93087 | 595 | { |
596 | SetEmpty(); | |
597 | operator=(s); | |
598 | }; | |
599 | ||
b7ac5457 AJ |
600 | Ip::Address & |
601 | Ip::Address::operator =(struct in_addr const &s) | |
41d93087 | 602 | { |
603 | #if USE_IPV6 | |
604 | Map4to6((const in_addr)s, m_SocketAddr.sin6_addr); | |
605 | m_SocketAddr.sin6_family = AF_INET6; | |
b5587d15 | 606 | |
41d93087 | 607 | #else |
b5587d15 | 608 | |
41d93087 | 609 | memcpy(&m_SocketAddr.sin_addr, &s, sizeof(struct in_addr)); |
b5587d15 | 610 | |
41d93087 | 611 | #endif |
b5587d15 AJ |
612 | |
613 | /* maintain stored family type properly */ | |
614 | check4Mapped(); | |
615 | ||
41d93087 | 616 | return *this; |
617 | }; | |
618 | ||
619 | #if USE_IPV6 | |
b7ac5457 | 620 | Ip::Address::Address(struct in6_addr const &s) |
41d93087 | 621 | { |
622 | SetEmpty(); | |
623 | operator=(s); | |
624 | }; | |
625 | ||
b7ac5457 AJ |
626 | Ip::Address & |
627 | Ip::Address::operator =(struct in6_addr const &s) | |
41d93087 | 628 | { |
b5587d15 | 629 | |
41d93087 | 630 | memcpy(&m_SocketAddr.sin6_addr, &s, sizeof(struct in6_addr)); |
631 | m_SocketAddr.sin6_family = AF_INET6; | |
b5587d15 AJ |
632 | |
633 | /* maintain address family type properly */ | |
634 | check4Mapped(); | |
635 | ||
41d93087 | 636 | return *this; |
637 | }; | |
41d93087 | 638 | #endif |
639 | ||
b7ac5457 | 640 | Ip::Address::Address(const Ip::Address &s) |
41d93087 | 641 | { |
642 | SetEmpty(); | |
643 | operator=(s); | |
644 | } | |
645 | ||
b7ac5457 | 646 | Ip::Address::Address(Ip::Address *s) |
41d93087 | 647 | { |
648 | SetEmpty(); | |
1a1f4104 | 649 | if (s) |
b7ac5457 | 650 | memcpy(this, s, sizeof(Ip::Address)); |
41d93087 | 651 | } |
652 | ||
b7ac5457 | 653 | Ip::Address::Address(const struct hostent &s) |
41d93087 | 654 | { |
655 | SetEmpty(); | |
656 | operator=(s); | |
657 | } | |
658 | ||
b7ac5457 AJ |
659 | bool |
660 | Ip::Address::operator =(const struct hostent &s) | |
41d93087 | 661 | { |
662 | ||
663 | struct in_addr* ipv4 = NULL; | |
664 | ||
665 | struct in6_addr* ipv6 = NULL; | |
666 | ||
667 | //struct hostent { | |
668 | // char *h_name; /* official name of host */ | |
669 | // char **h_aliases; /* alias list */ | |
670 | // int h_addrtype; /* host address type */ | |
671 | // int h_length; /* length of address */ | |
672 | // char **h_addr_list; /* list of addresses */ | |
673 | //} | |
674 | ||
26ac0430 | 675 | switch (s.h_addrtype) { |
41d93087 | 676 | |
677 | case AF_INET: | |
678 | ipv4 = (in_addr*)(s.h_addr_list[0]); | |
679 | /* this */ | |
680 | operator=(*ipv4); | |
681 | break; | |
682 | ||
683 | case AF_INET6: | |
684 | ipv6 = (in6_addr*)(s.h_addr_list[0]); | |
685 | #if USE_IPV6 | |
686 | /* this */ | |
687 | operator=(*ipv6); | |
688 | #else | |
689 | ||
690 | debugs(14,1, HERE << "Discarded IPv6 Address. Protocol disabled."); | |
691 | ||
692 | // FIXME see if there is another address in the list that might be usable ?? | |
693 | return false; | |
694 | #endif | |
695 | ||
696 | break; | |
697 | ||
698 | default: | |
26ac0430 AJ |
699 | IASSERT("false",false); |
700 | return false; | |
41d93087 | 701 | } |
702 | ||
703 | return true; | |
704 | } | |
705 | ||
b7ac5457 | 706 | Ip::Address::Address(const struct addrinfo &s) |
41d93087 | 707 | { |
708 | SetEmpty(); | |
709 | operator=(s); | |
710 | } | |
711 | ||
b7ac5457 AJ |
712 | bool |
713 | Ip::Address::operator =(const struct addrinfo &s) | |
41d93087 | 714 | { |
715 | ||
716 | struct sockaddr_in* ipv4 = NULL; | |
717 | ||
718 | struct sockaddr_in6* ipv6 = NULL; | |
719 | ||
720 | //struct addrinfo { | |
721 | // int ai_flags; /* input flags */ | |
722 | // int ai_family; /* protocol family for socket */ | |
723 | // int ai_socktype; /* socket type */ | |
724 | // int ai_protocol; /* protocol for socket */ | |
725 | // socklen_t ai_addrlen; /* length of socket-address */ | |
726 | // struct sockaddr *ai_addr; /* socket-address for socket */ | |
727 | // char *ai_canonname; /* canonical name for service location */ | |
728 | // struct addrinfo *ai_next; /* pointer to next in list */ | |
729 | //} | |
730 | ||
26ac0430 | 731 | switch (s.ai_family) { |
41d93087 | 732 | |
733 | case AF_INET: | |
734 | ipv4 = (sockaddr_in*)(s.ai_addr); | |
735 | /* this */ | |
736 | assert(ipv4); | |
737 | operator=(*ipv4); | |
738 | break; | |
739 | ||
740 | case AF_INET6: | |
741 | ipv6 = (sockaddr_in6*)(s.ai_addr); | |
742 | #if USE_IPV6 | |
743 | /* this */ | |
744 | assert(ipv6); | |
745 | operator=(*ipv6); | |
746 | #else | |
747 | ||
748 | debugs(14,1, HERE << "Discarded IPv6 Address. Protocol disabled."); | |
749 | ||
750 | // see if there is another address in the list that might be usable ?? | |
751 | ||
752 | if (s.ai_next) | |
753 | return operator=(*s.ai_next); | |
754 | else | |
755 | return false; | |
756 | ||
757 | #endif | |
758 | break; | |
759 | ||
760 | case AF_UNSPEC: | |
761 | default: | |
762 | // attempt to handle partially initialised addrinfo. | |
763 | // such as those where data only comes from getsockopt() | |
26ac0430 | 764 | if (s.ai_addr != NULL) { |
41d93087 | 765 | #if USE_IPV6 |
26ac0430 | 766 | if (s.ai_addrlen == sizeof(struct sockaddr_in6)) { |
41d93087 | 767 | operator=(*((struct sockaddr_in6*)s.ai_addr)); |
768 | return true; | |
26ac0430 | 769 | } else |
41d93087 | 770 | #endif |
26ac0430 AJ |
771 | if (s.ai_addrlen == sizeof(struct sockaddr_in)) { |
772 | operator=(*((struct sockaddr_in*)s.ai_addr)); | |
773 | return true; | |
774 | } | |
41d93087 | 775 | } |
776 | return false; | |
777 | } | |
778 | ||
779 | return true; | |
780 | } | |
781 | ||
b7ac5457 AJ |
782 | void |
783 | Ip::Address::GetAddrInfo(struct addrinfo *&dst, int force) const | |
41d93087 | 784 | { |
26ac0430 | 785 | if (dst == NULL) { |
41d93087 | 786 | dst = new addrinfo; |
787 | } | |
788 | ||
789 | memset(dst, 0, sizeof(struct addrinfo)); | |
790 | ||
791 | // set defaults | |
792 | dst->ai_flags = AI_NUMERICHOST; | |
793 | ||
26ac0430 | 794 | if (dst->ai_socktype == 0) |
41d93087 | 795 | dst->ai_socktype = SOCK_STREAM; |
796 | ||
26ac0430 | 797 | if (dst->ai_socktype == SOCK_STREAM // implies TCP |
41d93087 | 798 | && dst->ai_protocol == 0) |
799 | dst->ai_protocol = IPPROTO_TCP; | |
800 | ||
26ac0430 | 801 | if (dst->ai_socktype == SOCK_DGRAM // implies UDP |
41d93087 | 802 | && dst->ai_protocol == 0) |
803 | dst->ai_protocol = IPPROTO_UDP; | |
804 | ||
805 | #if USE_IPV6 | |
26ac0430 | 806 | if ( force == AF_INET6 || (force == AF_UNSPEC && IsIPv6()) ) { |
41d93087 | 807 | dst->ai_addr = (struct sockaddr*)new sockaddr_in6; |
808 | ||
809 | memset(dst->ai_addr,0,sizeof(struct sockaddr_in6)); | |
810 | ||
811 | GetSockAddr(*((struct sockaddr_in6*)dst->ai_addr)); | |
812 | ||
813 | dst->ai_addrlen = sizeof(struct sockaddr_in6); | |
814 | ||
815 | dst->ai_family = ((struct sockaddr_in6*)dst->ai_addr)->sin6_family; | |
9d92af86 AJ |
816 | |
817 | #if 0 | |
818 | /** | |
819 | * Enable only if you must and please report to squid-dev if you find a need for this. | |
820 | * | |
821 | * Vista may need this to cope with dual-stack (unsetting IP6_V6ONLY). | |
822 | * http://msdn.microsoft.com/en-us/library/ms738574(VS.85).aspx | |
823 | * Linux appears to only do some things when its present. | |
824 | * (93) Bad Protocol | |
825 | * FreeBSD dies horribly when using dual-stack with it set. | |
826 | * (43) Protocol not supported | |
827 | */ | |
41d93087 | 828 | dst->ai_protocol = IPPROTO_IPV6; |
9d92af86 AJ |
829 | #endif |
830 | ||
41d93087 | 831 | } else |
832 | #endif | |
26ac0430 | 833 | if ( force == AF_INET || (force == AF_UNSPEC && IsIPv4()) ) { |
41d93087 | 834 | |
835 | dst->ai_addr = (struct sockaddr*)new sockaddr_in; | |
836 | ||
837 | memset(dst->ai_addr,0,sizeof(struct sockaddr_in)); | |
838 | ||
839 | GetSockAddr(*((struct sockaddr_in*)dst->ai_addr)); | |
840 | ||
841 | dst->ai_addrlen = sizeof(struct sockaddr_in); | |
842 | ||
843 | dst->ai_family = ((struct sockaddr_in*)dst->ai_addr)->sin_family; | |
26ac0430 | 844 | } else { |
41d93087 | 845 | IASSERT("false",false); |
846 | } | |
847 | } | |
848 | ||
b7ac5457 AJ |
849 | void |
850 | Ip::Address::InitAddrInfo(struct addrinfo *&ai) | |
41d93087 | 851 | { |
26ac0430 | 852 | if (ai == NULL) { |
41d93087 | 853 | ai = new addrinfo; |
854 | memset(ai,0,sizeof(struct addrinfo)); | |
855 | } | |
856 | ||
857 | // remove any existing data. | |
26ac0430 | 858 | if (ai->ai_addr) delete ai->ai_addr; |
41d93087 | 859 | |
860 | ai->ai_addr = (struct sockaddr*)new sockaddr_in6; | |
861 | memset(ai->ai_addr, 0, sizeof(struct sockaddr_in6)); | |
862 | ||
863 | ai->ai_addrlen = sizeof(struct sockaddr_in6); | |
864 | ||
865 | } | |
866 | ||
b7ac5457 AJ |
867 | void |
868 | Ip::Address::FreeAddrInfo(struct addrinfo *&ai) | |
41d93087 | 869 | { |
26ac0430 | 870 | if (ai == NULL) return; |
41d93087 | 871 | |
26ac0430 | 872 | if (ai->ai_addr) delete ai->ai_addr; |
41d93087 | 873 | |
874 | ai->ai_addr = NULL; | |
875 | ||
876 | ai->ai_addrlen = 0; | |
877 | ||
878 | // NP: name fields are NOT allocated at present. | |
879 | delete ai; | |
880 | ||
881 | ai = NULL; | |
882 | } | |
883 | ||
b7ac5457 AJ |
884 | int |
885 | Ip::Address::matchIPAddr(const Ip::Address &rhs) const | |
41d93087 | 886 | { |
887 | #if USE_IPV6 | |
888 | uint8_t *l = (uint8_t*)m_SocketAddr.sin6_addr.s6_addr; | |
889 | uint8_t *r = (uint8_t*)rhs.m_SocketAddr.sin6_addr.s6_addr; | |
890 | #else | |
891 | uint8_t *l = (uint8_t*)&m_SocketAddr.sin_addr.s_addr; | |
892 | uint8_t *r = (uint8_t*)&rhs.m_SocketAddr.sin_addr.s_addr; | |
893 | #endif | |
894 | ||
895 | // loop a byte-wise compare | |
896 | // NP: match MUST be R-to-L : L-to-R produces inconsistent gt/lt results at varying CIDR | |
897 | // expected difference on CIDR is gt/eq or lt/eq ONLY. | |
26ac0430 | 898 | for (unsigned int i = 0 ; i < sizeof(m_SocketAddr.sin6_addr) ; i++) { |
41d93087 | 899 | |
26ac0430 | 900 | if (l[i] < r[i]) |
41d93087 | 901 | return -1; |
902 | ||
26ac0430 | 903 | if (l[i] > r[i]) |
41d93087 | 904 | return 1; |
905 | } | |
906 | ||
907 | return 0; | |
908 | } | |
909 | ||
b7ac5457 AJ |
910 | bool |
911 | Ip::Address::operator ==(const Ip::Address &s) const | |
41d93087 | 912 | { |
913 | return (0 == matchIPAddr(s)); | |
914 | } | |
915 | ||
b7ac5457 AJ |
916 | bool |
917 | Ip::Address::operator !=(const Ip::Address &s) const | |
41d93087 | 918 | { |
919 | return ! ( operator==(s) ); | |
920 | } | |
921 | ||
b7ac5457 AJ |
922 | bool |
923 | Ip::Address::operator <=(const Ip::Address &rhs) const | |
41d93087 | 924 | { |
26ac0430 | 925 | if (IsAnyAddr() && !rhs.IsAnyAddr()) |
41d93087 | 926 | return true; |
927 | ||
928 | return (matchIPAddr(rhs) <= 0); | |
929 | } | |
930 | ||
b7ac5457 AJ |
931 | bool |
932 | Ip::Address::operator >=(const Ip::Address &rhs) const | |
41d93087 | 933 | { |
26ac0430 | 934 | if (IsNoAddr() && !rhs.IsNoAddr()) |
41d93087 | 935 | return true; |
936 | ||
937 | return ( matchIPAddr(rhs) >= 0); | |
938 | } | |
939 | ||
b7ac5457 AJ |
940 | bool |
941 | Ip::Address::operator >(const Ip::Address &rhs) const | |
41d93087 | 942 | { |
26ac0430 | 943 | if (IsNoAddr() && !rhs.IsNoAddr()) |
41d93087 | 944 | return true; |
945 | ||
946 | return ( matchIPAddr(rhs) > 0); | |
947 | } | |
948 | ||
b7ac5457 AJ |
949 | bool |
950 | Ip::Address::operator <(const Ip::Address &rhs) const | |
41d93087 | 951 | { |
6232d0a7 | 952 | if (IsAnyAddr() && !rhs.IsAnyAddr()) |
41d93087 | 953 | return true; |
954 | ||
955 | return ( matchIPAddr(rhs) < 0); | |
956 | } | |
957 | ||
b7ac5457 AJ |
958 | u_short |
959 | Ip::Address::GetPort() const | |
41d93087 | 960 | { |
961 | return ntohs( m_SocketAddr.sin6_port ); | |
962 | } | |
963 | ||
b7ac5457 AJ |
964 | u_short |
965 | Ip::Address::SetPort(u_short prt) | |
41d93087 | 966 | { |
967 | m_SocketAddr.sin6_port = htons(prt); | |
968 | ||
969 | return prt; | |
970 | } | |
971 | ||
972 | /** | |
973 | * NtoA Given a buffer writes a readable ascii version of the IPA and/or port stored | |
974 | * | |
975 | * Buffer must be of a size large enough to hold the converted address. | |
976 | * This size is provided in the form of a global defined variable MAX_IPSTRLEN | |
977 | * Should a buffer shorter be provided the string result will be truncated | |
978 | * at the length of the available buffer. | |
979 | * | |
980 | * A copy of the buffer is also returned for simple immediate display. | |
981 | */ | |
b7ac5457 AJ |
982 | char * |
983 | Ip::Address::NtoA(char* buf, const unsigned int blen, int force) const | |
41d93087 | 984 | { |
985 | // Ensure we have a buffer. | |
26ac0430 | 986 | if (buf == NULL) { |
41d93087 | 987 | return NULL; |
988 | } | |
989 | ||
990 | /* some external code may have blindly memset a parent. */ | |
991 | /* thats okay, our default is known */ | |
26ac0430 | 992 | if ( IsAnyAddr() ) { |
41d93087 | 993 | #if USE_IPV6 |
d85c3078 | 994 | memcpy(buf,"::\0", min((const unsigned int)3,blen)); |
41d93087 | 995 | #else |
d85c3078 | 996 | memcpy(buf,"0.0.0.0\0", min((const unsigned int)8,blen)); |
41d93087 | 997 | #endif |
998 | return buf; | |
999 | } | |
1000 | ||
1001 | memset(buf,0,blen); // clear buffer before write | |
1002 | ||
1003 | /* Pure-IPv6 CANNOT be displayed in IPv4 format. */ | |
1004 | /* However IPv4 CAN. */ | |
26ac0430 AJ |
1005 | if ( force == AF_INET && !IsIPv4() ) { |
1006 | if ( IsIPv6() ) { | |
d85c3078 | 1007 | memcpy(buf, "{!IPv4}\0", min((const unsigned int)8,blen)); |
41d93087 | 1008 | } |
1009 | return buf; | |
1010 | } | |
1011 | ||
1012 | #if USE_IPV6 | |
26ac0430 | 1013 | if ( force == AF_INET6 || (force == AF_UNSPEC && IsIPv6()) ) { |
41d93087 | 1014 | |
27bc2077 | 1015 | inet_ntop(AF_INET6, &m_SocketAddr.sin6_addr, buf, blen); |
41d93087 | 1016 | |
1017 | } else if ( force == AF_INET || (force == AF_UNSPEC && IsIPv4()) ) { | |
1018 | ||
1019 | struct in_addr tmp; | |
1020 | GetInAddr(tmp); | |
27bc2077 | 1021 | inet_ntop(AF_INET, &tmp, buf, blen); |
41d93087 | 1022 | #else |
26ac0430 | 1023 | if ( force == AF_UNSPEC || (force == AF_INET && IsIPv4()) ) { |
27bc2077 | 1024 | inet_ntop(AF_INET, &m_SocketAddr.sin_addr, buf, blen); |
41d93087 | 1025 | #endif |
1026 | } else { | |
1027 | debugs(14,0,"WARNING: Corrupt IP Address details OR required to display in unknown format (" << | |
26ac0430 | 1028 | force << "). accepted={" << AF_UNSPEC << "," << AF_INET << "," << AF_INET6 << "}"); |
41d93087 | 1029 | fprintf(stderr,"WARNING: Corrupt IP Address details OR required to display in unknown format (%d). accepted={%d,%d,%d} ", |
1030 | force, AF_UNSPEC, AF_INET, AF_INET6); | |
d85c3078 | 1031 | memcpy(buf,"dead:beef::\0", min((const unsigned int)13,blen)); |
41d93087 | 1032 | assert(false); |
1033 | } | |
1034 | ||
1035 | return buf; | |
1036 | } | |
1037 | ||
b7ac5457 AJ |
1038 | unsigned int |
1039 | Ip::Address::ToHostname(char *buf, const unsigned int blen) const | |
e1381638 | 1040 | { |
41d93087 | 1041 | char *p = buf; |
1042 | ||
26ac0430 | 1043 | if (IsIPv6() && blen > 0) { |
41d93087 | 1044 | *p = '['; |
1045 | p++; | |
1046 | } | |
1047 | ||
1048 | /* 7 being space for [,], and port */ | |
26ac0430 | 1049 | if ( IsIPv6() ) |
41d93087 | 1050 | NtoA(p, blen-7, AF_INET6); |
1051 | else | |
1052 | NtoA(p, blen-7, AF_INET); | |
1053 | ||
1054 | // find the end of the new string | |
26ac0430 | 1055 | while (*p != '\0' && p < buf+blen) |
41d93087 | 1056 | p++; |
1057 | ||
26ac0430 | 1058 | if (IsIPv6() && p < (buf+blen-1) ) { |
41d93087 | 1059 | *p = ']'; |
1060 | p++; | |
1061 | } | |
1062 | ||
1063 | /* terminate just in case. */ | |
1064 | *p = '\0'; | |
1065 | ||
1066 | /* return size of buffer now used */ | |
1067 | return (p - buf); | |
1068 | } | |
1069 | ||
b7ac5457 AJ |
1070 | char * |
1071 | Ip::Address::ToURL(char* buf, unsigned int blen) const | |
e1381638 | 1072 | { |
41d93087 | 1073 | char *p = buf; |
1074 | ||
1075 | // Ensure we have a buffer. | |
1076 | ||
26ac0430 | 1077 | if (buf == NULL) { |
41d93087 | 1078 | return NULL; |
1079 | } | |
1080 | ||
1081 | p += ToHostname(p, blen); | |
1082 | ||
26ac0430 | 1083 | if (m_SocketAddr.sin6_port > 0 && p < (buf+blen-6) ) { |
41d93087 | 1084 | /* 6 is max length of expected ':port' (short int) */ |
1085 | snprintf(p, 6,":%d", GetPort() ); | |
1086 | } | |
1087 | ||
1088 | // force a null-terminated string | |
303bfd76 | 1089 | buf[blen-1] = '\0'; |
41d93087 | 1090 | |
1091 | return buf; | |
1092 | } | |
1093 | ||
b7ac5457 AJ |
1094 | void |
1095 | Ip::Address::GetSockAddr(struct sockaddr_storage &addr, const int family) const | |
e1381638 | 1096 | { |
52b694c2 AJ |
1097 | struct sockaddr_in *sin = NULL; |
1098 | ||
26ac0430 | 1099 | if ( family == AF_INET && !IsIPv4()) { |
0e1a47f0 | 1100 | // FIXME INET6: caller using the wrong socket type! |
b7ac5457 | 1101 | debugs(14, DBG_CRITICAL, HERE << "Ip::Address::GetSockAddr : Cannot convert non-IPv4 to IPv4. from " << *this); |
0e1a47f0 AJ |
1102 | assert(false); |
1103 | } | |
1104 | ||
1105 | #if USE_IPV6 | |
26ac0430 | 1106 | if ( family == AF_INET6 || (family == AF_UNSPEC && IsIPv6()) ) { |
1ef0b9ce AJ |
1107 | struct sockaddr_in6 *ss6 = (struct sockaddr_in6*)&addr; |
1108 | GetSockAddr(*ss6); | |
26ac0430 | 1109 | } else if ( family == AF_INET || (family == AF_UNSPEC && IsIPv4()) ) { |
52b694c2 | 1110 | sin = (struct sockaddr_in*)&addr; |
1ef0b9ce | 1111 | GetSockAddr(*sin); |
52b694c2 AJ |
1112 | } else { |
1113 | IASSERT("false",false); | |
0e1a47f0 | 1114 | } |
8c37ea44 | 1115 | #else /* not USE_IPV6 */ |
52b694c2 | 1116 | sin = (struct sockaddr_in*)&addr; |
1ef0b9ce | 1117 | GetSockAddr(*sin); |
8c37ea44 | 1118 | #endif /* USE_IPV6 */ |
0e1a47f0 AJ |
1119 | } |
1120 | ||
b7ac5457 AJ |
1121 | void |
1122 | Ip::Address::GetSockAddr(struct sockaddr_in &buf) const | |
e1381638 | 1123 | { |
41d93087 | 1124 | #if USE_IPV6 |
1125 | ||
26ac0430 | 1126 | if ( IsIPv4() ) { |
41d93087 | 1127 | buf.sin_family = AF_INET; |
1128 | buf.sin_port = m_SocketAddr.sin6_port; | |
1129 | Map6to4( m_SocketAddr.sin6_addr, buf.sin_addr); | |
26ac0430 | 1130 | } else { |
b7ac5457 | 1131 | debugs(14, DBG_CRITICAL, HERE << "Ip::Address::GetSockAddr : Cannot convert non-IPv4 to IPv4. from " << *this ); |
41d93087 | 1132 | |
1133 | memset(&buf,0xFFFFFFFF,sizeof(struct sockaddr_in)); | |
1134 | assert(false); | |
1135 | } | |
1136 | ||
1137 | #else | |
1138 | ||
1139 | memcpy(&buf, &m_SocketAddr, sizeof(struct sockaddr_in)); | |
1140 | ||
26ac0430 | 1141 | if (buf.sin_family == 0) { |
41d93087 | 1142 | buf.sin_family = AF_INET; |
1143 | } | |
1144 | ||
1145 | #endif | |
12f45551 AJ |
1146 | |
1147 | #if HAVE_SIN_LEN_IN_SAI | |
1148 | /* not all OS have this field, BUT when they do it can be a problem if set wrong */ | |
1ef0b9ce | 1149 | buf.sin_len = sizeof(struct sockaddr_in); |
12f45551 AJ |
1150 | #endif |
1151 | ||
41d93087 | 1152 | } |
1153 | ||
1154 | #if USE_IPV6 | |
b7ac5457 AJ |
1155 | void |
1156 | Ip::Address::GetSockAddr(struct sockaddr_in6 &buf) const | |
e1381638 | 1157 | { |
41d93087 | 1158 | memcpy(&buf, &m_SocketAddr, sizeof(struct sockaddr_in6)); |
1159 | /* maintain address family. It may have changed inside us. */ | |
1160 | buf.sin6_family = AF_INET6; | |
12f45551 AJ |
1161 | |
1162 | #if HAVE_SIN6_LEN_IN_SAI | |
1163 | /* not all OS have this field, BUT when they do it can be a problem if set wrong */ | |
1ef0b9ce | 1164 | buf.sin6_len = sizeof(struct sockaddr_in6); |
12f45551 | 1165 | #endif |
41d93087 | 1166 | } |
41d93087 | 1167 | #endif |
1168 | ||
1169 | #if USE_IPV6 | |
b7ac5457 AJ |
1170 | void |
1171 | Ip::Address::Map4to6(const struct in_addr &in, struct in6_addr &out) const | |
e1381638 | 1172 | { |
41d93087 | 1173 | /* check for special cases */ |
1174 | ||
26ac0430 | 1175 | if ( in.s_addr == 0x00000000) { |
41d93087 | 1176 | /* ANYADDR */ |
41d93087 | 1177 | memset(&out, 0, sizeof(struct in6_addr)); |
26ac0430 | 1178 | } else if ( in.s_addr == 0xFFFFFFFF) { |
41d93087 | 1179 | /* NOADDR */ |
2c8fff41 | 1180 | memset(&out, 255, sizeof(struct in6_addr)); |
26ac0430 | 1181 | } else { |
41d93087 | 1182 | /* general */ |
41d93087 | 1183 | memset(&out, 0, sizeof(struct in6_addr)); |
2c8fff41 AJ |
1184 | out.s6_addr[10] = 0xFF; |
1185 | out.s6_addr[11] = 0xFF; | |
1186 | out.s6_addr[12] = ((uint8_t *)&in.s_addr)[0]; | |
1187 | out.s6_addr[13] = ((uint8_t *)&in.s_addr)[1]; | |
1188 | out.s6_addr[14] = ((uint8_t *)&in.s_addr)[2]; | |
1189 | out.s6_addr[15] = ((uint8_t *)&in.s_addr)[3]; | |
41d93087 | 1190 | } |
1191 | } | |
1192 | ||
b7ac5457 AJ |
1193 | void |
1194 | Ip::Address::Map6to4(const struct in6_addr &in, struct in_addr &out) const | |
e1381638 | 1195 | { |
41d93087 | 1196 | /* ANYADDR */ |
1197 | /* NOADDR */ | |
1198 | /* general */ | |
1199 | ||
1200 | memset(&out, 0, sizeof(struct in_addr)); | |
2c8fff41 AJ |
1201 | ((uint8_t *)&out.s_addr)[0] = in.s6_addr[12]; |
1202 | ((uint8_t *)&out.s_addr)[1] = in.s6_addr[13]; | |
1203 | ((uint8_t *)&out.s_addr)[2] = in.s6_addr[14]; | |
1204 | ((uint8_t *)&out.s_addr)[3] = in.s6_addr[15]; | |
41d93087 | 1205 | } |
1206 | ||
b7ac5457 AJ |
1207 | void |
1208 | Ip::Address::GetInAddr(in6_addr &buf) const | |
e1381638 | 1209 | { |
41d93087 | 1210 | memcpy(&buf, &m_SocketAddr.sin6_addr, sizeof(struct in6_addr)); |
1211 | } | |
41d93087 | 1212 | #endif |
1213 | ||
b7ac5457 AJ |
1214 | bool |
1215 | Ip::Address::GetInAddr(struct in_addr &buf) const | |
e1381638 | 1216 | { |
41d93087 | 1217 | |
1218 | #if USE_IPV6 | |
26ac0430 | 1219 | if ( IsIPv4() ) { |
41d93087 | 1220 | Map6to4((const in6_addr)m_SocketAddr.sin6_addr, buf); |
1221 | return true; | |
1222 | } | |
1223 | #else | |
1224 | ||
26ac0430 | 1225 | if ( IsIPv4() ) { |
41d93087 | 1226 | memcpy(&buf, &m_SocketAddr.sin_addr, sizeof(struct in_addr)); |
1227 | return true; | |
1228 | } | |
1229 | #endif | |
1230 | ||
1231 | // default: | |
1232 | // non-compatible IPv6 Pure Address | |
1233 | ||
b7ac5457 | 1234 | debugs(14,1, HERE << "Ip::Address::GetInAddr : Cannot convert non-IPv4 to IPv4. IPA=" << *this); |
41d93087 | 1235 | memset(&buf,0xFFFFFFFF,sizeof(struct in_addr)); |
1236 | assert(false); | |
1237 | return false; | |
1238 | } |