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Commit | Line | Data |
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41d93087 | 1 | /* |
2cd0bda2 | 2 | * Copyright (C) 1996-2017 The Squid Software Foundation and contributors |
bbc27441 AJ |
3 | * |
4 | * Squid software is distributed under GPLv2+ license and includes | |
5 | * contributions from numerous individuals and organizations. | |
6 | * Please see the COPYING and CONTRIBUTORS files for details. | |
41d93087 | 7 | */ |
bbc27441 AJ |
8 | |
9 | /* DEBUG: section 14 IP Storage and Handling */ | |
10 | ||
f7f3304a | 11 | #include "squid.h" |
82b7abe3 | 12 | #include "Debug.h" |
96d89ea0 | 13 | #include "ip/Address.h" |
055421ee | 14 | #include "ip/tools.h" |
1ef0b9ce AJ |
15 | #include "util.h" |
16 | ||
074d6a40 AJ |
17 | #include <cassert> |
18 | #include <cstring> | |
41d93087 | 19 | #if HAVE_ARPA_INET_H |
489520a9 AJ |
20 | /* for inet_ntoa() */ |
21 | #include <arpa/inet.h> | |
41d93087 | 22 | #endif |
760da772 AJ |
23 | #if HAVE_WS2TCPIP_H |
24 | // Windows IPv6 definitions | |
25 | #include <ws2tcpip.h> | |
26 | #endif | |
27 | ||
28 | // some OS (ie WIndows) define IN6_ADDR_EQUAL instead | |
29 | #if !defined(IN6_ARE_ADDR_EQUAL) && _SQUID_WINDOWS_ | |
30 | #define IN6_ARE_ADDR_EQUAL IN6_ADDR_EQUAL | |
31 | #endif | |
41d93087 | 32 | |
41d93087 | 33 | /* Debugging only. Dump the address content when a fatal assert is encountered. */ |
41d93087 | 34 | #define IASSERT(a,b) \ |
f53969cc SM |
35 | if(!(b)){ printf("assert \"%s\" at line %d\n", a, __LINE__); \ |
36 | printf("Ip::Address invalid? with isIPv4()=%c, isIPv6()=%c\n",(isIPv4()?'T':'F'),(isIPv6()?'T':'F')); \ | |
37 | printf("ADDRESS:"); \ | |
38 | for(unsigned int i = 0; i < sizeof(mSocketAddr_.sin6_addr); ++i) { \ | |
39 | printf(" %x", mSocketAddr_.sin6_addr.s6_addr[i]); \ | |
40 | } printf("\n"); assert(b); \ | |
41 | } | |
41d93087 | 42 | |
41d93087 | 43 | int |
4dd643d5 | 44 | Ip::Address::cidr() const |
41d93087 | 45 | { |
760da772 | 46 | uint8_t shift,ipbyte; |
41d93087 | 47 | uint8_t bit,caught; |
48 | int len = 0; | |
4dd643d5 | 49 | const uint8_t *ptr= mSocketAddr_.sin6_addr.s6_addr; |
41d93087 | 50 | |
51 | /* Let's scan all the bits from Most Significant to Least */ | |
52 | /* Until we find an "0" bit. Then, we return */ | |
53 | shift=0; | |
54 | ||
41d93087 | 55 | /* return IPv4 CIDR for any Mapped address */ |
56 | /* Thus only check the mapped bit */ | |
57 | ||
4dd643d5 | 58 | if ( !isIPv6() ) { |
41d93087 | 59 | shift = 12; |
60 | } | |
61 | ||
4dd643d5 | 62 | for (; shift<sizeof(mSocketAddr_.sin6_addr) ; ++shift) { |
760da772 | 63 | ipbyte= *(ptr+shift); |
41d93087 | 64 | |
760da772 | 65 | if (ipbyte == 0xFF) { |
41d93087 | 66 | len += 8; |
67 | continue ; /* A short-cut */ | |
68 | } | |
69 | ||
5e263176 | 70 | for (caught = 0 , bit= 7 ; !caught && (bit <= 7); --bit) { |
760da772 | 71 | caught = ((ipbyte & 0x80) == 0x00); /* Found a '0' at 'bit' ? */ |
41d93087 | 72 | |
73 | if (!caught) | |
d7ae3534 | 74 | ++len; |
41d93087 | 75 | |
760da772 | 76 | ipbyte <<= 1; |
41d93087 | 77 | } |
78 | ||
79 | if (caught) | |
80 | break; /* We have found the most significant "0" bit. */ | |
81 | } | |
82 | ||
83 | return len; | |
84 | } | |
85 | ||
881c4733 | 86 | int |
4dd643d5 | 87 | Ip::Address::applyMask(Ip::Address const &mask_addr) |
41d93087 | 88 | { |
4dd643d5 AJ |
89 | uint32_t *p1 = (uint32_t*)(&mSocketAddr_.sin6_addr); |
90 | uint32_t const *p2 = (uint32_t const *)(&mask_addr.mSocketAddr_.sin6_addr); | |
91 | unsigned int blen = sizeof(mSocketAddr_.sin6_addr)/sizeof(uint32_t); | |
41d93087 | 92 | unsigned int changes = 0; |
93 | ||
d7ae3534 | 94 | for (unsigned int i = 0; i < blen; ++i) { |
26ac0430 | 95 | if ((p1[i] & p2[i]) != p1[i]) |
d7ae3534 | 96 | ++changes; |
41d93087 | 97 | |
98 | p1[i] &= p2[i]; | |
99 | } | |
100 | ||
41d93087 | 101 | return changes; |
102 | } | |
103 | ||
b7ac5457 | 104 | bool |
4dd643d5 | 105 | Ip::Address::applyMask(const unsigned int cidrMask, int mtype) |
41d93087 | 106 | { |
107 | uint8_t clearbits = 0; | |
108 | uint8_t* p = NULL; | |
109 | ||
41d93087 | 110 | // validation and short-cuts. |
4dd643d5 | 111 | if (cidrMask > 128) |
41d93087 | 112 | return false; |
113 | ||
4dd643d5 | 114 | if (cidrMask > 32 && mtype == AF_INET) |
41d93087 | 115 | return false; |
116 | ||
4dd643d5 | 117 | if (cidrMask == 0) { |
2c1b9590 | 118 | /* CIDR /0 is NoAddr regardless of the IPv4/IPv6 protocol */ |
4dd643d5 | 119 | setNoAddr(); |
2c1b9590 AJ |
120 | return true; |
121 | } | |
122 | ||
4dd643d5 | 123 | clearbits = (uint8_t)( (mtype==AF_INET6?128:32) - cidrMask); |
41d93087 | 124 | |
125 | // short-cut | |
26ac0430 | 126 | if (clearbits == 0) |
41d93087 | 127 | return true; |
128 | ||
4dd643d5 | 129 | p = (uint8_t*)(&mSocketAddr_.sin6_addr) + 15; |
41d93087 | 130 | |
4dd643d5 | 131 | for (; clearbits>0 && p >= (uint8_t*)&mSocketAddr_.sin6_addr ; --p ) { |
26ac0430 | 132 | if (clearbits < 8) { |
41d93087 | 133 | *p &= ((0xFF << clearbits) & 0xFF); |
134 | clearbits = 0; | |
135 | } else { | |
136 | *p &= 0x00; | |
137 | clearbits -= 8; | |
138 | } | |
139 | } | |
140 | ||
141 | return true; | |
142 | } | |
143 | ||
b7ac5457 | 144 | bool |
4dd643d5 | 145 | Ip::Address::isSockAddr() const |
41d93087 | 146 | { |
4dd643d5 | 147 | return (mSocketAddr_.sin6_port != 0); |
41d93087 | 148 | } |
149 | ||
b7ac5457 | 150 | bool |
4dd643d5 | 151 | Ip::Address::isIPv4() const |
41d93087 | 152 | { |
4dd643d5 | 153 | return IN6_IS_ADDR_V4MAPPED( &mSocketAddr_.sin6_addr ); |
41d93087 | 154 | } |
155 | ||
b7ac5457 | 156 | bool |
4dd643d5 | 157 | Ip::Address::isIPv6() const |
41d93087 | 158 | { |
4dd643d5 | 159 | return !isIPv4(); |
41d93087 | 160 | } |
161 | ||
b7ac5457 | 162 | bool |
4dd643d5 | 163 | Ip::Address::isAnyAddr() const |
41d93087 | 164 | { |
4dd643d5 | 165 | return IN6_IS_ADDR_UNSPECIFIED(&mSocketAddr_.sin6_addr) || IN6_ARE_ADDR_EQUAL(&mSocketAddr_.sin6_addr, &v4_anyaddr); |
41d93087 | 166 | } |
167 | ||
168 | /// NOTE: Does NOT clear the Port stored. Ony the Address and Type. | |
b7ac5457 | 169 | void |
4dd643d5 | 170 | Ip::Address::setAnyAddr() |
41d93087 | 171 | { |
4dd643d5 | 172 | memset(&mSocketAddr_.sin6_addr, 0, sizeof(struct in6_addr) ); |
41d93087 | 173 | } |
174 | ||
b7ac5457 AJ |
175 | /// NOTE: completely empties the Ip::Address structure. Address, Port, Type, everything. |
176 | void | |
4dd643d5 | 177 | Ip::Address::setEmpty() |
41d93087 | 178 | { |
4dd643d5 | 179 | memset(&mSocketAddr_, 0, sizeof(mSocketAddr_) ); |
41d93087 | 180 | } |
181 | ||
349a322f | 182 | #if _SQUID_AIX_ |
d48a52bf A |
183 | // Bug 2885 comment 78 explains. |
184 | // In short AIX has a different netinet/in.h union definition | |
349a322f AJ |
185 | const struct in6_addr Ip::Address::v4_localhost = {{{ 0x00000000, 0x00000000, 0x0000ffff, 0x7f000001 }}}; |
186 | const struct in6_addr Ip::Address::v4_anyaddr = {{{ 0x00000000, 0x00000000, 0x0000ffff, 0x00000000 }}}; | |
187 | const struct in6_addr Ip::Address::v4_noaddr = {{{ 0x00000000, 0x00000000, 0x0000ffff, 0xffffffff }}}; | |
188 | const struct in6_addr Ip::Address::v6_noaddr = {{{ 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff }}}; | |
189 | #else | |
f53969cc SM |
190 | const struct in6_addr Ip::Address::v4_localhost = {{{ |
191 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | |
192 | 0x00, 0x00, 0xff, 0xff, 0x7f, 0x00, 0x00, 0x01 | |
193 | } | |
194 | } | |
c0248e14 | 195 | }; |
f53969cc SM |
196 | const struct in6_addr Ip::Address::v4_anyaddr = {{{ |
197 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | |
198 | 0x00, 0x00, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00 | |
199 | } | |
200 | } | |
c0248e14 | 201 | }; |
f53969cc SM |
202 | const struct in6_addr Ip::Address::v4_noaddr = {{{ |
203 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | |
204 | 0x00, 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff | |
205 | } | |
206 | } | |
0eb08770 | 207 | }; |
f53969cc SM |
208 | const struct in6_addr Ip::Address::v6_noaddr = {{{ |
209 | 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, | |
210 | 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff | |
211 | } | |
212 | } | |
c0248e14 | 213 | }; |
349a322f | 214 | #endif |
41d93087 | 215 | |
b7ac5457 | 216 | bool |
4dd643d5 | 217 | Ip::Address::setIPv4() |
c0248e14 | 218 | { |
4dd643d5 AJ |
219 | if ( isLocalhost() ) { |
220 | mSocketAddr_.sin6_addr = v4_localhost; | |
41d93087 | 221 | return true; |
222 | } | |
41d93087 | 223 | |
4dd643d5 AJ |
224 | if ( isAnyAddr() ) { |
225 | mSocketAddr_.sin6_addr = v4_anyaddr; | |
41d93087 | 226 | return true; |
227 | } | |
228 | ||
4dd643d5 AJ |
229 | if ( isNoAddr() ) { |
230 | mSocketAddr_.sin6_addr = v4_noaddr; | |
0906f01d CT |
231 | return true; |
232 | } | |
233 | ||
4dd643d5 | 234 | if ( isIPv4()) |
41d93087 | 235 | return true; |
236 | ||
237 | // anything non-IPv4 and non-convertable is BAD. | |
238 | return false; | |
41d93087 | 239 | } |
240 | ||
b7ac5457 | 241 | bool |
4dd643d5 | 242 | Ip::Address::isLocalhost() const |
41d93087 | 243 | { |
4dd643d5 | 244 | return IN6_IS_ADDR_LOOPBACK( &mSocketAddr_.sin6_addr ) || IN6_ARE_ADDR_EQUAL( &mSocketAddr_.sin6_addr, &v4_localhost ); |
41d93087 | 245 | } |
246 | ||
b7ac5457 | 247 | void |
4dd643d5 | 248 | Ip::Address::setLocalhost() |
41d93087 | 249 | { |
055421ee | 250 | if (Ip::EnableIpv6) { |
4dd643d5 AJ |
251 | mSocketAddr_.sin6_addr = in6addr_loopback; |
252 | mSocketAddr_.sin6_family = AF_INET6; | |
055421ee | 253 | } else { |
4dd643d5 AJ |
254 | mSocketAddr_.sin6_addr = v4_localhost; |
255 | mSocketAddr_.sin6_family = AF_INET; | |
055421ee | 256 | } |
41d93087 | 257 | } |
258 | ||
b7ac5457 | 259 | bool |
4dd643d5 | 260 | Ip::Address::isSiteLocal6() const |
a98c2da5 | 261 | { |
dd19b634 AJ |
262 | // RFC 4193 the site-local allocated range is fc00::/7 |
263 | // with fd00::/8 as the only currently allocated range (so we test it first). | |
264 | // BUG: as of 2010-02 Linux and BSD define IN6_IS_ADDR_SITELOCAL() to check for fec::/10 | |
4dd643d5 AJ |
265 | return mSocketAddr_.sin6_addr.s6_addr[0] == static_cast<uint8_t>(0xfd) || |
266 | mSocketAddr_.sin6_addr.s6_addr[0] == static_cast<uint8_t>(0xfc); | |
a98c2da5 AJ |
267 | } |
268 | ||
b7ac5457 | 269 | bool |
4dd643d5 | 270 | Ip::Address::isSiteLocalAuto() const |
a98c2da5 | 271 | { |
b6a91265 AJ |
272 | return mSocketAddr_.sin6_addr.s6_addr[11] == static_cast<uint8_t>(0xff) && |
273 | mSocketAddr_.sin6_addr.s6_addr[12] == static_cast<uint8_t>(0xfe); | |
a98c2da5 AJ |
274 | } |
275 | ||
b7ac5457 | 276 | bool |
4dd643d5 | 277 | Ip::Address::isNoAddr() const |
41d93087 | 278 | { |
279 | // IFF the address == 0xff..ff (all ones) | |
4dd643d5 AJ |
280 | return IN6_ARE_ADDR_EQUAL( &mSocketAddr_.sin6_addr, &v6_noaddr ) |
281 | || IN6_ARE_ADDR_EQUAL( &mSocketAddr_.sin6_addr, &v4_noaddr ); | |
41d93087 | 282 | } |
283 | ||
b7ac5457 | 284 | void |
4dd643d5 | 285 | Ip::Address::setNoAddr() |
41d93087 | 286 | { |
4dd643d5 AJ |
287 | memset(&mSocketAddr_.sin6_addr, 0xFF, sizeof(struct in6_addr) ); |
288 | mSocketAddr_.sin6_family = AF_INET6; | |
41d93087 | 289 | } |
290 | ||
b7ac5457 | 291 | bool |
4dd643d5 | 292 | Ip::Address::getReverseString6(char buf[MAX_IPSTRLEN], const struct in6_addr &dat) const |
41d93087 | 293 | { |
294 | char *p = buf; | |
295 | unsigned char const *r = dat.s6_addr; | |
296 | ||
297 | /* RFC1886 says: */ | |
298 | /* 4321:0:1:2:3:4:567:89ab */ | |
299 | /* must be sent */ | |
300 | /* 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. */ | |
301 | ||
302 | /* Work from the binary field. Anything else may have representation changes. */ | |
303 | /* The sin6_port and sin6_addr members shall be in network byte order. */ | |
304 | ||
305 | /* Compile Err: 'Too many arguments for format. */ | |
306 | ||
5e263176 | 307 | for (int i = 15; i >= 0; --i, p+=4) { |
41d93087 | 308 | snprintf(p, 5, "%x.%x.", ((r[i])&0xf), (((r[i])>>4)&0xf) ); |
309 | } | |
310 | ||
311 | /* RFC3152 says: */ | |
312 | /* ip6.int is now deprecated TLD, use ip6.arpa instead. */ | |
313 | snprintf(p,10,"ip6.arpa."); | |
314 | ||
315 | return true; | |
316 | } | |
41d93087 | 317 | |
b7ac5457 | 318 | bool |
4dd643d5 | 319 | Ip::Address::getReverseString4(char buf[MAX_IPSTRLEN], const struct in_addr &dat) const |
41d93087 | 320 | { |
321 | unsigned int i = (unsigned int) ntohl(dat.s_addr); | |
322 | snprintf(buf, 32, "%u.%u.%u.%u.in-addr.arpa.", | |
323 | i & 255, | |
324 | (i >> 8) & 255, | |
325 | (i >> 16) & 255, | |
326 | (i >> 24) & 255); | |
327 | return true; | |
328 | } | |
329 | ||
b7ac5457 | 330 | bool |
4dd643d5 | 331 | Ip::Address::getReverseString(char buf[MAX_IPSTRLEN], int show_type) const |
41d93087 | 332 | { |
333 | ||
26ac0430 | 334 | if (show_type == AF_UNSPEC) { |
4dd643d5 | 335 | show_type = isIPv6() ? AF_INET6 : AF_INET ; |
41d93087 | 336 | } |
337 | ||
4dd643d5 AJ |
338 | if (show_type == AF_INET && isIPv4()) { |
339 | struct in_addr* tmp = (struct in_addr*)&mSocketAddr_.sin6_addr.s6_addr[12]; | |
340 | return getReverseString4(buf, *tmp); | |
341 | } else if ( show_type == AF_INET6 && isIPv6() ) { | |
342 | return getReverseString6(buf, mSocketAddr_.sin6_addr); | |
41d93087 | 343 | } |
344 | ||
4dd643d5 | 345 | debugs(14, DBG_CRITICAL, "Unable to convert '" << toStr(buf,MAX_IPSTRLEN) << "' to the rDNS type requested."); |
41d93087 | 346 | |
347 | buf[0] = '\0'; | |
348 | ||
349 | return false; | |
350 | } | |
351 | ||
b7ac5457 AJ |
352 | Ip::Address& |
353 | Ip::Address::operator =(const Ip::Address &s) | |
41d93087 | 354 | { |
b7ac5457 | 355 | memcpy(this, &s, sizeof(Ip::Address)); |
41d93087 | 356 | return *this; |
357 | }; | |
358 | ||
b7ac5457 | 359 | Ip::Address::Address(const char*s) |
41d93087 | 360 | { |
4dd643d5 AJ |
361 | setEmpty(); |
362 | lookupHostIP(s, true); | |
41d93087 | 363 | } |
364 | ||
b7ac5457 AJ |
365 | bool |
366 | Ip::Address::operator =(const char* s) | |
41d93087 | 367 | { |
4dd643d5 | 368 | return lookupHostIP(s, true); |
41d93087 | 369 | } |
370 | ||
b7ac5457 AJ |
371 | bool |
372 | Ip::Address::GetHostByName(const char* s) | |
41d93087 | 373 | { |
4dd643d5 | 374 | return lookupHostIP(s, false); |
41d93087 | 375 | } |
376 | ||
b7ac5457 | 377 | bool |
4dd643d5 | 378 | Ip::Address::lookupHostIP(const char *s, bool nodns) |
41d93087 | 379 | { |
41d93087 | 380 | struct addrinfo want; |
41d93087 | 381 | memset(&want, 0, sizeof(struct addrinfo)); |
26ac0430 | 382 | if (nodns) { |
41d93087 | 383 | want.ai_flags = AI_NUMERICHOST; // prevent actual DNS lookups! |
384 | } | |
41d93087 | 385 | |
4dd643d5 AJ |
386 | int err = 0; |
387 | struct addrinfo *res = NULL; | |
27bc2077 | 388 | if ( (err = getaddrinfo(s, NULL, &want, &res)) != 0) { |
380de14e | 389 | debugs(14,3, HERE << "Given Non-IP '" << s << "': " << gai_strerror(err) ); |
27bc2077 | 390 | /* free the memory getaddrinfo() dynamically allocated. */ |
4dd643d5 | 391 | if (res) |
27bc2077 | 392 | freeaddrinfo(res); |
41d93087 | 393 | return false; |
394 | } | |
395 | ||
8b96fe86 | 396 | struct addrinfo *resHead = res; // we need to free the whole list later |
430b5d15 AJ |
397 | if (!Ip::EnableIpv6) { |
398 | // if we are IPv6-disabled, use first-IPv4 instead of first-IP. | |
399 | struct addrinfo *maybeIpv4 = res; | |
400 | while (maybeIpv4) { | |
401 | if (maybeIpv4->ai_family == AF_INET) | |
402 | break; | |
403 | maybeIpv4 = maybeIpv4->ai_next; | |
404 | } | |
405 | if (maybeIpv4 != NULL) | |
406 | res = maybeIpv4; | |
407 | // else IPv6-only host, let the caller deal with first-IP anyway. | |
408 | } | |
409 | ||
41d93087 | 410 | /* |
411 | * NP: =(sockaddr_*) may alter the port. we don't want that. | |
412 | * all we have been given as input was an IPA. | |
413 | */ | |
4dd643d5 | 414 | short portSaved = port(); |
41d93087 | 415 | operator=(*res); |
4dd643d5 | 416 | port(portSaved); |
41d93087 | 417 | |
27bc2077 | 418 | /* free the memory getaddrinfo() dynamically allocated. */ |
8b96fe86 | 419 | freeaddrinfo(resHead); |
41d93087 | 420 | return true; |
421 | } | |
422 | ||
b7ac5457 | 423 | Ip::Address::Address(struct sockaddr_in const &s) |
41d93087 | 424 | { |
4dd643d5 | 425 | setEmpty(); |
41d93087 | 426 | operator=(s); |
427 | }; | |
428 | ||
b7ac5457 AJ |
429 | Ip::Address & |
430 | Ip::Address::operator =(struct sockaddr_in const &s) | |
41d93087 | 431 | { |
4dd643d5 AJ |
432 | map4to6((const in_addr)s.sin_addr, mSocketAddr_.sin6_addr); |
433 | mSocketAddr_.sin6_port = s.sin_port; | |
434 | mSocketAddr_.sin6_family = AF_INET6; | |
41d93087 | 435 | return *this; |
436 | }; | |
437 | ||
b7ac5457 AJ |
438 | Ip::Address & |
439 | Ip::Address::operator =(const struct sockaddr_storage &s) | |
0e1a47f0 | 440 | { |
0e1a47f0 | 441 | /* some AF_* magic to tell socket types apart and what we need to do */ |
26ac0430 | 442 | if (s.ss_family == AF_INET6) { |
7da22087 | 443 | memcpy(&mSocketAddr_, &s, sizeof(struct sockaddr_in6)); |
26ac0430 | 444 | } else { // convert it to our storage mapping. |
0e1a47f0 | 445 | struct sockaddr_in *sin = (struct sockaddr_in*)&s; |
4dd643d5 AJ |
446 | mSocketAddr_.sin6_port = sin->sin_port; |
447 | map4to6( sin->sin_addr, mSocketAddr_.sin6_addr); | |
0e1a47f0 | 448 | } |
0e1a47f0 AJ |
449 | return *this; |
450 | }; | |
451 | ||
b7ac5457 | 452 | Ip::Address::Address(struct sockaddr_in6 const &s) |
41d93087 | 453 | { |
4dd643d5 | 454 | setEmpty(); |
41d93087 | 455 | operator=(s); |
456 | }; | |
457 | ||
b7ac5457 AJ |
458 | Ip::Address & |
459 | Ip::Address::operator =(struct sockaddr_in6 const &s) | |
41d93087 | 460 | { |
4dd643d5 | 461 | memcpy(&mSocketAddr_, &s, sizeof(struct sockaddr_in6)); |
b5587d15 | 462 | |
41d93087 | 463 | return *this; |
464 | }; | |
41d93087 | 465 | |
b7ac5457 | 466 | Ip::Address::Address(struct in_addr const &s) |
41d93087 | 467 | { |
4dd643d5 | 468 | setEmpty(); |
41d93087 | 469 | operator=(s); |
470 | }; | |
471 | ||
b7ac5457 AJ |
472 | Ip::Address & |
473 | Ip::Address::operator =(struct in_addr const &s) | |
41d93087 | 474 | { |
4dd643d5 AJ |
475 | map4to6((const in_addr)s, mSocketAddr_.sin6_addr); |
476 | mSocketAddr_.sin6_family = AF_INET6; | |
41d93087 | 477 | return *this; |
478 | }; | |
479 | ||
b7ac5457 | 480 | Ip::Address::Address(struct in6_addr const &s) |
41d93087 | 481 | { |
4dd643d5 | 482 | setEmpty(); |
41d93087 | 483 | operator=(s); |
484 | }; | |
485 | ||
b7ac5457 AJ |
486 | Ip::Address & |
487 | Ip::Address::operator =(struct in6_addr const &s) | |
41d93087 | 488 | { |
b5587d15 | 489 | |
4dd643d5 AJ |
490 | memcpy(&mSocketAddr_.sin6_addr, &s, sizeof(struct in6_addr)); |
491 | mSocketAddr_.sin6_family = AF_INET6; | |
b5587d15 | 492 | |
41d93087 | 493 | return *this; |
494 | }; | |
41d93087 | 495 | |
b7ac5457 | 496 | Ip::Address::Address(const Ip::Address &s) |
41d93087 | 497 | { |
4dd643d5 | 498 | setEmpty(); |
41d93087 | 499 | operator=(s); |
500 | } | |
501 | ||
b7ac5457 | 502 | Ip::Address::Address(const struct hostent &s) |
41d93087 | 503 | { |
4dd643d5 | 504 | setEmpty(); |
41d93087 | 505 | operator=(s); |
506 | } | |
507 | ||
b7ac5457 AJ |
508 | bool |
509 | Ip::Address::operator =(const struct hostent &s) | |
41d93087 | 510 | { |
511 | ||
512 | struct in_addr* ipv4 = NULL; | |
513 | ||
514 | struct in6_addr* ipv6 = NULL; | |
515 | ||
516 | //struct hostent { | |
517 | // char *h_name; /* official name of host */ | |
518 | // char **h_aliases; /* alias list */ | |
519 | // int h_addrtype; /* host address type */ | |
520 | // int h_length; /* length of address */ | |
521 | // char **h_addr_list; /* list of addresses */ | |
522 | //} | |
523 | ||
26ac0430 | 524 | switch (s.h_addrtype) { |
41d93087 | 525 | |
526 | case AF_INET: | |
527 | ipv4 = (in_addr*)(s.h_addr_list[0]); | |
528 | /* this */ | |
529 | operator=(*ipv4); | |
530 | break; | |
531 | ||
532 | case AF_INET6: | |
533 | ipv6 = (in6_addr*)(s.h_addr_list[0]); | |
41d93087 | 534 | /* this */ |
535 | operator=(*ipv6); | |
41d93087 | 536 | break; |
537 | ||
538 | default: | |
26ac0430 AJ |
539 | IASSERT("false",false); |
540 | return false; | |
41d93087 | 541 | } |
542 | ||
543 | return true; | |
544 | } | |
545 | ||
b7ac5457 | 546 | Ip::Address::Address(const struct addrinfo &s) |
41d93087 | 547 | { |
4dd643d5 | 548 | setEmpty(); |
41d93087 | 549 | operator=(s); |
550 | } | |
551 | ||
b7ac5457 AJ |
552 | bool |
553 | Ip::Address::operator =(const struct addrinfo &s) | |
41d93087 | 554 | { |
555 | ||
556 | struct sockaddr_in* ipv4 = NULL; | |
557 | ||
558 | struct sockaddr_in6* ipv6 = NULL; | |
559 | ||
560 | //struct addrinfo { | |
561 | // int ai_flags; /* input flags */ | |
562 | // int ai_family; /* protocol family for socket */ | |
563 | // int ai_socktype; /* socket type */ | |
564 | // int ai_protocol; /* protocol for socket */ | |
565 | // socklen_t ai_addrlen; /* length of socket-address */ | |
566 | // struct sockaddr *ai_addr; /* socket-address for socket */ | |
567 | // char *ai_canonname; /* canonical name for service location */ | |
568 | // struct addrinfo *ai_next; /* pointer to next in list */ | |
569 | //} | |
570 | ||
26ac0430 | 571 | switch (s.ai_family) { |
41d93087 | 572 | |
573 | case AF_INET: | |
574 | ipv4 = (sockaddr_in*)(s.ai_addr); | |
575 | /* this */ | |
576 | assert(ipv4); | |
577 | operator=(*ipv4); | |
578 | break; | |
579 | ||
580 | case AF_INET6: | |
581 | ipv6 = (sockaddr_in6*)(s.ai_addr); | |
41d93087 | 582 | /* this */ |
583 | assert(ipv6); | |
584 | operator=(*ipv6); | |
41d93087 | 585 | break; |
586 | ||
587 | case AF_UNSPEC: | |
588 | default: | |
589 | // attempt to handle partially initialised addrinfo. | |
590 | // such as those where data only comes from getsockopt() | |
26ac0430 | 591 | if (s.ai_addr != NULL) { |
26ac0430 | 592 | if (s.ai_addrlen == sizeof(struct sockaddr_in6)) { |
41d93087 | 593 | operator=(*((struct sockaddr_in6*)s.ai_addr)); |
594 | return true; | |
055421ee AJ |
595 | } else if (s.ai_addrlen == sizeof(struct sockaddr_in)) { |
596 | operator=(*((struct sockaddr_in*)s.ai_addr)); | |
597 | return true; | |
598 | } | |
41d93087 | 599 | } |
600 | return false; | |
601 | } | |
602 | ||
603 | return true; | |
604 | } | |
605 | ||
b7ac5457 | 606 | void |
4dd643d5 | 607 | Ip::Address::getAddrInfo(struct addrinfo *&dst, int force) const |
41d93087 | 608 | { |
26ac0430 | 609 | if (dst == NULL) { |
41d93087 | 610 | dst = new addrinfo; |
611 | } | |
612 | ||
613 | memset(dst, 0, sizeof(struct addrinfo)); | |
614 | ||
615 | // set defaults | |
3db830d3 AJ |
616 | // Mac OS X does not emit a flag indicating the output is numeric (IP address) |
617 | #if _SQUID_APPLE_ | |
618 | dst->ai_flags = 0; | |
619 | #else | |
41d93087 | 620 | dst->ai_flags = AI_NUMERICHOST; |
3db830d3 | 621 | #endif |
41d93087 | 622 | |
26ac0430 | 623 | if (dst->ai_socktype == 0) |
41d93087 | 624 | dst->ai_socktype = SOCK_STREAM; |
625 | ||
26ac0430 | 626 | if (dst->ai_socktype == SOCK_STREAM // implies TCP |
41d93087 | 627 | && dst->ai_protocol == 0) |
628 | dst->ai_protocol = IPPROTO_TCP; | |
629 | ||
26ac0430 | 630 | if (dst->ai_socktype == SOCK_DGRAM // implies UDP |
41d93087 | 631 | && dst->ai_protocol == 0) |
632 | dst->ai_protocol = IPPROTO_UDP; | |
633 | ||
4dd643d5 | 634 | if (force == AF_INET6 || (force == AF_UNSPEC && Ip::EnableIpv6 && isIPv6()) ) { |
41d93087 | 635 | dst->ai_addr = (struct sockaddr*)new sockaddr_in6; |
636 | ||
637 | memset(dst->ai_addr,0,sizeof(struct sockaddr_in6)); | |
638 | ||
4dd643d5 | 639 | getSockAddr(*((struct sockaddr_in6*)dst->ai_addr)); |
41d93087 | 640 | |
641 | dst->ai_addrlen = sizeof(struct sockaddr_in6); | |
642 | ||
643 | dst->ai_family = ((struct sockaddr_in6*)dst->ai_addr)->sin6_family; | |
9d92af86 AJ |
644 | |
645 | #if 0 | |
646 | /** | |
647 | * Enable only if you must and please report to squid-dev if you find a need for this. | |
648 | * | |
649 | * Vista may need this to cope with dual-stack (unsetting IP6_V6ONLY). | |
650 | * http://msdn.microsoft.com/en-us/library/ms738574(VS.85).aspx | |
651 | * Linux appears to only do some things when its present. | |
652 | * (93) Bad Protocol | |
653 | * FreeBSD dies horribly when using dual-stack with it set. | |
654 | * (43) Protocol not supported | |
655 | */ | |
41d93087 | 656 | dst->ai_protocol = IPPROTO_IPV6; |
9d92af86 AJ |
657 | #endif |
658 | ||
4dd643d5 | 659 | } else if ( force == AF_INET || (force == AF_UNSPEC && isIPv4()) ) { |
41d93087 | 660 | |
055421ee | 661 | dst->ai_addr = (struct sockaddr*)new sockaddr_in; |
41d93087 | 662 | |
055421ee | 663 | memset(dst->ai_addr,0,sizeof(struct sockaddr_in)); |
41d93087 | 664 | |
4dd643d5 | 665 | getSockAddr(*((struct sockaddr_in*)dst->ai_addr)); |
41d93087 | 666 | |
055421ee | 667 | dst->ai_addrlen = sizeof(struct sockaddr_in); |
41d93087 | 668 | |
055421ee AJ |
669 | dst->ai_family = ((struct sockaddr_in*)dst->ai_addr)->sin_family; |
670 | } else { | |
671 | IASSERT("false",false); | |
672 | } | |
41d93087 | 673 | } |
674 | ||
b7ac5457 | 675 | void |
851614a8 | 676 | Ip::Address::InitAddr(struct addrinfo *&ai) |
41d93087 | 677 | { |
26ac0430 | 678 | if (ai == NULL) { |
41d93087 | 679 | ai = new addrinfo; |
680 | memset(ai,0,sizeof(struct addrinfo)); | |
681 | } | |
682 | ||
683 | // remove any existing data. | |
26ac0430 | 684 | if (ai->ai_addr) delete ai->ai_addr; |
41d93087 | 685 | |
686 | ai->ai_addr = (struct sockaddr*)new sockaddr_in6; | |
687 | memset(ai->ai_addr, 0, sizeof(struct sockaddr_in6)); | |
688 | ||
689 | ai->ai_addrlen = sizeof(struct sockaddr_in6); | |
690 | ||
691 | } | |
692 | ||
b7ac5457 | 693 | void |
851614a8 | 694 | Ip::Address::FreeAddr(struct addrinfo *&ai) |
41d93087 | 695 | { |
26ac0430 | 696 | if (ai == NULL) return; |
41d93087 | 697 | |
26ac0430 | 698 | if (ai->ai_addr) delete ai->ai_addr; |
41d93087 | 699 | |
700 | ai->ai_addr = NULL; | |
701 | ||
702 | ai->ai_addrlen = 0; | |
703 | ||
704 | // NP: name fields are NOT allocated at present. | |
705 | delete ai; | |
706 | ||
707 | ai = NULL; | |
708 | } | |
709 | ||
b7ac5457 AJ |
710 | int |
711 | Ip::Address::matchIPAddr(const Ip::Address &rhs) const | |
41d93087 | 712 | { |
4dd643d5 AJ |
713 | uint8_t *l = (uint8_t*)mSocketAddr_.sin6_addr.s6_addr; |
714 | uint8_t *r = (uint8_t*)rhs.mSocketAddr_.sin6_addr.s6_addr; | |
41d93087 | 715 | |
716 | // loop a byte-wise compare | |
717 | // NP: match MUST be R-to-L : L-to-R produces inconsistent gt/lt results at varying CIDR | |
718 | // expected difference on CIDR is gt/eq or lt/eq ONLY. | |
4dd643d5 | 719 | for (unsigned int i = 0 ; i < sizeof(mSocketAddr_.sin6_addr) ; ++i) { |
41d93087 | 720 | |
26ac0430 | 721 | if (l[i] < r[i]) |
41d93087 | 722 | return -1; |
723 | ||
26ac0430 | 724 | if (l[i] > r[i]) |
41d93087 | 725 | return 1; |
726 | } | |
727 | ||
728 | return 0; | |
729 | } | |
730 | ||
a67d2b2e AR |
731 | int |
732 | Ip::Address::compareWhole(const Ip::Address &rhs) const | |
607a7bd4 AR |
733 | { |
734 | return memcmp(this, &rhs, sizeof(*this)); | |
735 | } | |
736 | ||
b7ac5457 AJ |
737 | bool |
738 | Ip::Address::operator ==(const Ip::Address &s) const | |
41d93087 | 739 | { |
740 | return (0 == matchIPAddr(s)); | |
741 | } | |
742 | ||
b7ac5457 AJ |
743 | bool |
744 | Ip::Address::operator !=(const Ip::Address &s) const | |
41d93087 | 745 | { |
746 | return ! ( operator==(s) ); | |
747 | } | |
748 | ||
b7ac5457 AJ |
749 | bool |
750 | Ip::Address::operator <=(const Ip::Address &rhs) const | |
41d93087 | 751 | { |
4dd643d5 | 752 | if (isAnyAddr() && !rhs.isAnyAddr()) |
41d93087 | 753 | return true; |
754 | ||
755 | return (matchIPAddr(rhs) <= 0); | |
756 | } | |
757 | ||
b7ac5457 AJ |
758 | bool |
759 | Ip::Address::operator >=(const Ip::Address &rhs) const | |
41d93087 | 760 | { |
4dd643d5 | 761 | if (isNoAddr() && !rhs.isNoAddr()) |
41d93087 | 762 | return true; |
763 | ||
764 | return ( matchIPAddr(rhs) >= 0); | |
765 | } | |
766 | ||
b7ac5457 AJ |
767 | bool |
768 | Ip::Address::operator >(const Ip::Address &rhs) const | |
41d93087 | 769 | { |
4dd643d5 | 770 | if (isNoAddr() && !rhs.isNoAddr()) |
41d93087 | 771 | return true; |
772 | ||
773 | return ( matchIPAddr(rhs) > 0); | |
774 | } | |
775 | ||
b7ac5457 AJ |
776 | bool |
777 | Ip::Address::operator <(const Ip::Address &rhs) const | |
41d93087 | 778 | { |
4dd643d5 | 779 | if (isAnyAddr() && !rhs.isAnyAddr()) |
41d93087 | 780 | return true; |
781 | ||
782 | return ( matchIPAddr(rhs) < 0); | |
783 | } | |
784 | ||
f45dd259 | 785 | unsigned short |
4dd643d5 | 786 | Ip::Address::port() const |
41d93087 | 787 | { |
4dd643d5 | 788 | return ntohs( mSocketAddr_.sin6_port ); |
41d93087 | 789 | } |
790 | ||
f45dd259 | 791 | unsigned short |
4dd643d5 | 792 | Ip::Address::port(unsigned short prt) |
41d93087 | 793 | { |
4dd643d5 | 794 | mSocketAddr_.sin6_port = htons(prt); |
41d93087 | 795 | |
796 | return prt; | |
797 | } | |
798 | ||
799 | /** | |
4dd643d5 | 800 | * toStr Given a buffer writes a readable ascii version of the IPA and/or port stored |
41d93087 | 801 | * |
802 | * Buffer must be of a size large enough to hold the converted address. | |
803 | * This size is provided in the form of a global defined variable MAX_IPSTRLEN | |
804 | * Should a buffer shorter be provided the string result will be truncated | |
805 | * at the length of the available buffer. | |
806 | * | |
807 | * A copy of the buffer is also returned for simple immediate display. | |
808 | */ | |
b7ac5457 | 809 | char * |
4dd643d5 | 810 | Ip::Address::toStr(char* buf, const unsigned int blen, int force) const |
41d93087 | 811 | { |
812 | // Ensure we have a buffer. | |
26ac0430 | 813 | if (buf == NULL) { |
41d93087 | 814 | return NULL; |
815 | } | |
816 | ||
817 | /* some external code may have blindly memset a parent. */ | |
818 | /* thats okay, our default is known */ | |
4dd643d5 AJ |
819 | if ( isAnyAddr() ) { |
820 | if (isIPv6()) | |
8ea75675 | 821 | memcpy(buf,"::\0", min(static_cast<unsigned int>(3),blen)); |
4dd643d5 | 822 | else if (isIPv4()) |
8ea75675 | 823 | memcpy(buf,"0.0.0.0\0", min(static_cast<unsigned int>(8),blen)); |
41d93087 | 824 | return buf; |
825 | } | |
826 | ||
827 | memset(buf,0,blen); // clear buffer before write | |
828 | ||
829 | /* Pure-IPv6 CANNOT be displayed in IPv4 format. */ | |
830 | /* However IPv4 CAN. */ | |
4dd643d5 AJ |
831 | if ( force == AF_INET && !isIPv4() ) { |
832 | if ( isIPv6() ) { | |
1dc746da | 833 | memcpy(buf, "{!IPv4}\0", min(static_cast<unsigned int>(8),blen)); |
41d93087 | 834 | } |
835 | return buf; | |
836 | } | |
837 | ||
4dd643d5 | 838 | if ( force == AF_INET6 || (force == AF_UNSPEC && isIPv6()) ) { |
41d93087 | 839 | |
4dd643d5 | 840 | inet_ntop(AF_INET6, &mSocketAddr_.sin6_addr, buf, blen); |
41d93087 | 841 | |
4dd643d5 | 842 | } else if ( force == AF_INET || (force == AF_UNSPEC && isIPv4()) ) { |
41d93087 | 843 | |
844 | struct in_addr tmp; | |
4dd643d5 | 845 | getInAddr(tmp); |
27bc2077 | 846 | inet_ntop(AF_INET, &tmp, buf, blen); |
41d93087 | 847 | } else { |
fa84c01d | 848 | debugs(14, DBG_CRITICAL, "WARNING: Corrupt IP Address details OR required to display in unknown format (" << |
26ac0430 | 849 | force << "). accepted={" << AF_UNSPEC << "," << AF_INET << "," << AF_INET6 << "}"); |
41d93087 | 850 | fprintf(stderr,"WARNING: Corrupt IP Address details OR required to display in unknown format (%d). accepted={%d,%d,%d} ", |
851 | force, AF_UNSPEC, AF_INET, AF_INET6); | |
1dc746da | 852 | memcpy(buf,"dead:beef::\0", min(static_cast<unsigned int>(13),blen)); |
41d93087 | 853 | assert(false); |
854 | } | |
855 | ||
856 | return buf; | |
857 | } | |
858 | ||
b7ac5457 | 859 | unsigned int |
4dd643d5 | 860 | Ip::Address::toHostStr(char *buf, const unsigned int blen) const |
e1381638 | 861 | { |
41d93087 | 862 | char *p = buf; |
863 | ||
4dd643d5 | 864 | if (isIPv6() && blen > 0) { |
41d93087 | 865 | *p = '['; |
d7ae3534 | 866 | ++p; |
41d93087 | 867 | } |
868 | ||
188a640f | 869 | /* 8 being space for [ ] : and port digits */ |
4dd643d5 AJ |
870 | if ( isIPv6() ) |
871 | toStr(p, blen-8, AF_INET6); | |
41d93087 | 872 | else |
4dd643d5 | 873 | toStr(p, blen-8, AF_INET); |
41d93087 | 874 | |
875 | // find the end of the new string | |
26ac0430 | 876 | while (*p != '\0' && p < buf+blen) |
d7ae3534 | 877 | ++p; |
41d93087 | 878 | |
4dd643d5 | 879 | if (isIPv6() && p < (buf+blen-1) ) { |
41d93087 | 880 | *p = ']'; |
d7ae3534 | 881 | ++p; |
41d93087 | 882 | } |
883 | ||
884 | /* terminate just in case. */ | |
885 | *p = '\0'; | |
886 | ||
887 | /* return size of buffer now used */ | |
888 | return (p - buf); | |
889 | } | |
890 | ||
b7ac5457 | 891 | char * |
4dd643d5 | 892 | Ip::Address::toUrl(char* buf, unsigned int blen) const |
e1381638 | 893 | { |
41d93087 | 894 | char *p = buf; |
895 | ||
896 | // Ensure we have a buffer. | |
897 | ||
26ac0430 | 898 | if (buf == NULL) { |
41d93087 | 899 | return NULL; |
900 | } | |
901 | ||
4dd643d5 | 902 | p += toHostStr(p, blen); |
41d93087 | 903 | |
4dd643d5 | 904 | if (mSocketAddr_.sin6_port > 0 && p <= (buf+blen-7) ) { |
842fe4cc | 905 | // ':port' (short int) needs at most 6 bytes plus 1 for 0-terminator |
4dd643d5 | 906 | snprintf(p, 7, ":%d", port() ); |
41d93087 | 907 | } |
908 | ||
909 | // force a null-terminated string | |
303bfd76 | 910 | buf[blen-1] = '\0'; |
41d93087 | 911 | |
912 | return buf; | |
913 | } | |
914 | ||
b7ac5457 | 915 | void |
4dd643d5 | 916 | Ip::Address::getSockAddr(struct sockaddr_storage &addr, const int family) const |
e1381638 | 917 | { |
52b694c2 AJ |
918 | struct sockaddr_in *sin = NULL; |
919 | ||
4dd643d5 | 920 | if ( family == AF_INET && !isIPv4()) { |
0e1a47f0 | 921 | // FIXME INET6: caller using the wrong socket type! |
4dd643d5 | 922 | debugs(14, DBG_CRITICAL, HERE << "Ip::Address::getSockAddr : Cannot convert non-IPv4 to IPv4. from " << *this); |
0e1a47f0 AJ |
923 | assert(false); |
924 | } | |
925 | ||
4dd643d5 | 926 | if ( family == AF_INET6 || (family == AF_UNSPEC && isIPv6()) ) { |
1ef0b9ce | 927 | struct sockaddr_in6 *ss6 = (struct sockaddr_in6*)&addr; |
4dd643d5 AJ |
928 | getSockAddr(*ss6); |
929 | } else if ( family == AF_INET || (family == AF_UNSPEC && isIPv4()) ) { | |
52b694c2 | 930 | sin = (struct sockaddr_in*)&addr; |
4dd643d5 | 931 | getSockAddr(*sin); |
52b694c2 AJ |
932 | } else { |
933 | IASSERT("false",false); | |
0e1a47f0 | 934 | } |
0e1a47f0 AJ |
935 | } |
936 | ||
b7ac5457 | 937 | void |
4dd643d5 | 938 | Ip::Address::getSockAddr(struct sockaddr_in &buf) const |
e1381638 | 939 | { |
4dd643d5 | 940 | if ( isIPv4() ) { |
41d93087 | 941 | buf.sin_family = AF_INET; |
4dd643d5 AJ |
942 | buf.sin_port = mSocketAddr_.sin6_port; |
943 | map6to4( mSocketAddr_.sin6_addr, buf.sin_addr); | |
26ac0430 | 944 | } else { |
4dd643d5 | 945 | debugs(14, DBG_CRITICAL, HERE << "Ip::Address::getSockAddr : Cannot convert non-IPv4 to IPv4. from " << *this ); |
41d93087 | 946 | |
947 | memset(&buf,0xFFFFFFFF,sizeof(struct sockaddr_in)); | |
948 | assert(false); | |
949 | } | |
950 | ||
12f45551 AJ |
951 | #if HAVE_SIN_LEN_IN_SAI |
952 | /* not all OS have this field, BUT when they do it can be a problem if set wrong */ | |
1ef0b9ce | 953 | buf.sin_len = sizeof(struct sockaddr_in); |
12f45551 | 954 | #endif |
41d93087 | 955 | } |
956 | ||
b7ac5457 | 957 | void |
4dd643d5 | 958 | Ip::Address::getSockAddr(struct sockaddr_in6 &buf) const |
e1381638 | 959 | { |
4dd643d5 | 960 | memcpy(&buf, &mSocketAddr_, sizeof(struct sockaddr_in6)); |
41d93087 | 961 | /* maintain address family. It may have changed inside us. */ |
962 | buf.sin6_family = AF_INET6; | |
12f45551 AJ |
963 | |
964 | #if HAVE_SIN6_LEN_IN_SAI | |
965 | /* not all OS have this field, BUT when they do it can be a problem if set wrong */ | |
1ef0b9ce | 966 | buf.sin6_len = sizeof(struct sockaddr_in6); |
12f45551 | 967 | #endif |
41d93087 | 968 | } |
41d93087 | 969 | |
b7ac5457 | 970 | void |
4dd643d5 | 971 | Ip::Address::map4to6(const struct in_addr &in, struct in6_addr &out) const |
e1381638 | 972 | { |
41d93087 | 973 | /* check for special cases */ |
974 | ||
26ac0430 | 975 | if ( in.s_addr == 0x00000000) { |
41d93087 | 976 | /* ANYADDR */ |
0eb08770 | 977 | out = v4_anyaddr; |
26ac0430 | 978 | } else if ( in.s_addr == 0xFFFFFFFF) { |
41d93087 | 979 | /* NOADDR */ |
0eb08770 | 980 | out = v4_noaddr; |
26ac0430 | 981 | } else { |
41d93087 | 982 | /* general */ |
0eb08770 | 983 | out = v4_anyaddr; |
2c8fff41 AJ |
984 | out.s6_addr[12] = ((uint8_t *)&in.s_addr)[0]; |
985 | out.s6_addr[13] = ((uint8_t *)&in.s_addr)[1]; | |
986 | out.s6_addr[14] = ((uint8_t *)&in.s_addr)[2]; | |
987 | out.s6_addr[15] = ((uint8_t *)&in.s_addr)[3]; | |
41d93087 | 988 | } |
989 | } | |
990 | ||
b7ac5457 | 991 | void |
4dd643d5 | 992 | Ip::Address::map6to4(const struct in6_addr &in, struct in_addr &out) const |
e1381638 | 993 | { |
41d93087 | 994 | /* ANYADDR */ |
995 | /* NOADDR */ | |
996 | /* general */ | |
997 | ||
998 | memset(&out, 0, sizeof(struct in_addr)); | |
2c8fff41 AJ |
999 | ((uint8_t *)&out.s_addr)[0] = in.s6_addr[12]; |
1000 | ((uint8_t *)&out.s_addr)[1] = in.s6_addr[13]; | |
1001 | ((uint8_t *)&out.s_addr)[2] = in.s6_addr[14]; | |
1002 | ((uint8_t *)&out.s_addr)[3] = in.s6_addr[15]; | |
41d93087 | 1003 | } |
1004 | ||
b7ac5457 | 1005 | void |
68fb74b0 | 1006 | Ip::Address::getInAddr(struct in6_addr &buf) const |
e1381638 | 1007 | { |
4dd643d5 | 1008 | memcpy(&buf, &mSocketAddr_.sin6_addr, sizeof(struct in6_addr)); |
41d93087 | 1009 | } |
41d93087 | 1010 | |
b7ac5457 | 1011 | bool |
4dd643d5 | 1012 | Ip::Address::getInAddr(struct in_addr &buf) const |
e1381638 | 1013 | { |
4dd643d5 | 1014 | if ( isIPv4() ) { |
68fb74b0 | 1015 | map6to4(mSocketAddr_.sin6_addr, buf); |
41d93087 | 1016 | return true; |
1017 | } | |
41d93087 | 1018 | |
1019 | // default: | |
1020 | // non-compatible IPv6 Pure Address | |
1021 | ||
4dd643d5 | 1022 | debugs(14, DBG_IMPORTANT, HERE << "Ip::Address::getInAddr : Cannot convert non-IPv4 to IPv4. IPA=" << *this); |
41d93087 | 1023 | memset(&buf,0xFFFFFFFF,sizeof(struct in_addr)); |
1024 | assert(false); | |
1025 | return false; | |
1026 | } | |
f53969cc | 1027 |