]>
git.ipfire.org Git - thirdparty/squid.git/blob - src/ip/Address.cc
2 * Copyright (C) 1996-2017 The Squid Software Foundation and contributors
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.
9 /* DEBUG: section 14 IP Storage and Handling */
13 #include "ip/Address.h"
21 #include <arpa/inet.h>
24 // Windows IPv6 definitions
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
33 /* Debugging only. Dump the address content when a fatal assert is encountered. */
34 #define IASSERT(a,b) \
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')); \
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); \
44 Ip::Address::cidr() const
49 const uint8_t *ptr
= mSocketAddr_
.sin6_addr
.s6_addr
;
51 /* Let's scan all the bits from Most Significant to Least */
52 /* Until we find an "0" bit. Then, we return */
55 /* return IPv4 CIDR for any Mapped address */
56 /* Thus only check the mapped bit */
62 for (; shift
<sizeof(mSocketAddr_
.sin6_addr
) ; ++shift
) {
67 continue ; /* A short-cut */
70 for (caught
= 0 , bit
= 7 ; !caught
&& (bit
<= 7); --bit
) {
71 caught
= ((ipbyte
& 0x80) == 0x00); /* Found a '0' at 'bit' ? */
80 break; /* We have found the most significant "0" bit. */
87 Ip::Address::applyMask(Ip::Address
const &mask_addr
)
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);
92 unsigned int changes
= 0;
94 for (unsigned int i
= 0; i
< blen
; ++i
) {
95 if ((p1
[i
] & p2
[i
]) != p1
[i
])
105 Ip::Address::applyMask(const unsigned int cidrMask
, int mtype
)
107 uint8_t clearbits
= 0;
110 // validation and short-cuts.
114 if (cidrMask
> 32 && mtype
== AF_INET
)
118 /* CIDR /0 is NoAddr regardless of the IPv4/IPv6 protocol */
123 clearbits
= (uint8_t)( (mtype
==AF_INET6
?128:32) - cidrMask
);
129 p
= (uint8_t*)(&mSocketAddr_
.sin6_addr
) + 15;
131 for (; clearbits
>0 && p
>= (uint8_t*)&mSocketAddr_
.sin6_addr
; --p
) {
133 *p
&= ((0xFF << clearbits
) & 0xFF);
145 Ip::Address::isSockAddr() const
147 return (mSocketAddr_
.sin6_port
!= 0);
151 Ip::Address::isIPv4() const
153 return IN6_IS_ADDR_V4MAPPED( &mSocketAddr_
.sin6_addr
);
157 Ip::Address::isIPv6() const
163 Ip::Address::isAnyAddr() const
165 return IN6_IS_ADDR_UNSPECIFIED(&mSocketAddr_
.sin6_addr
) || IN6_ARE_ADDR_EQUAL(&mSocketAddr_
.sin6_addr
, &v4_anyaddr
);
168 /// NOTE: Does NOT clear the Port stored. Ony the Address and Type.
170 Ip::Address::setAnyAddr()
172 memset(&mSocketAddr_
.sin6_addr
, 0, sizeof(struct in6_addr
) );
175 /// NOTE: completely empties the Ip::Address structure. Address, Port, Type, everything.
177 Ip::Address::setEmpty()
179 memset(&mSocketAddr_
, 0, sizeof(mSocketAddr_
) );
183 // Bug 2885 comment 78 explains.
184 // In short AIX has a different netinet/in.h union definition
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 }}};
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
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
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
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
217 Ip::Address::setIPv4()
219 if ( isLocalhost() ) {
220 mSocketAddr_
.sin6_addr
= v4_localhost
;
225 mSocketAddr_
.sin6_addr
= v4_anyaddr
;
230 mSocketAddr_
.sin6_addr
= v4_noaddr
;
237 // anything non-IPv4 and non-convertable is BAD.
242 Ip::Address::isLocalhost() const
244 return IN6_IS_ADDR_LOOPBACK( &mSocketAddr_
.sin6_addr
) || IN6_ARE_ADDR_EQUAL( &mSocketAddr_
.sin6_addr
, &v4_localhost
);
248 Ip::Address::setLocalhost()
250 if (Ip::EnableIpv6
) {
251 mSocketAddr_
.sin6_addr
= in6addr_loopback
;
252 mSocketAddr_
.sin6_family
= AF_INET6
;
254 mSocketAddr_
.sin6_addr
= v4_localhost
;
255 mSocketAddr_
.sin6_family
= AF_INET
;
260 Ip::Address::isSiteLocal6() const
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
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);
270 Ip::Address::isSiteLocalAuto() const
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);
277 Ip::Address::isNoAddr() const
279 // IFF the address == 0xff..ff (all ones)
280 return IN6_ARE_ADDR_EQUAL( &mSocketAddr_
.sin6_addr
, &v6_noaddr
)
281 || IN6_ARE_ADDR_EQUAL( &mSocketAddr_
.sin6_addr
, &v4_noaddr
);
285 Ip::Address::setNoAddr()
287 memset(&mSocketAddr_
.sin6_addr
, 0xFF, sizeof(struct in6_addr
) );
288 mSocketAddr_
.sin6_family
= AF_INET6
;
292 Ip::Address::getReverseString6(char buf
[MAX_IPSTRLEN
], const struct in6_addr
&dat
) const
295 unsigned char const *r
= dat
.s6_addr
;
298 /* 4321:0:1:2:3:4:567:89ab */
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. */
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. */
305 /* Compile Err: 'Too many arguments for format. */
307 for (int i
= 15; i
>= 0; --i
, p
+=4) {
308 snprintf(p
, 5, "%x.%x.", ((r
[i
])&0xf), (((r
[i
])>>4)&0xf) );
312 /* ip6.int is now deprecated TLD, use ip6.arpa instead. */
313 snprintf(p
,10,"ip6.arpa.");
319 Ip::Address::getReverseString4(char buf
[MAX_IPSTRLEN
], const struct in_addr
&dat
) const
321 unsigned int i
= (unsigned int) ntohl(dat
.s_addr
);
322 snprintf(buf
, 32, "%u.%u.%u.%u.in-addr.arpa.",
331 Ip::Address::getReverseString(char buf
[MAX_IPSTRLEN
], int show_type
) const
334 if (show_type
== AF_UNSPEC
) {
335 show_type
= isIPv6() ? AF_INET6
: AF_INET
;
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
);
345 debugs(14, DBG_CRITICAL
, "Unable to convert '" << toStr(buf
,MAX_IPSTRLEN
) << "' to the rDNS type requested.");
353 Ip::Address::operator =(const Ip::Address
&s
)
355 memcpy(this, &s
, sizeof(Ip::Address
));
359 Ip::Address::Address(const char*s
)
362 lookupHostIP(s
, true);
366 Ip::Address::operator =(const char* s
)
368 return lookupHostIP(s
, true);
372 Ip::Address::GetHostByName(const char* s
)
374 return lookupHostIP(s
, false);
378 Ip::Address::lookupHostIP(const char *s
, bool nodns
)
380 struct addrinfo want
;
381 memset(&want
, 0, sizeof(struct addrinfo
));
383 want
.ai_flags
= AI_NUMERICHOST
; // prevent actual DNS lookups!
387 struct addrinfo
*res
= NULL
;
388 if ( (err
= getaddrinfo(s
, NULL
, &want
, &res
)) != 0) {
389 debugs(14,3, HERE
<< "Given Non-IP '" << s
<< "': " << gai_strerror(err
) );
390 /* free the memory getaddrinfo() dynamically allocated. */
396 struct addrinfo
*resHead
= res
; // we need to free the whole list later
397 if (!Ip::EnableIpv6
) {
398 // if we are IPv6-disabled, use first-IPv4 instead of first-IP.
399 struct addrinfo
*maybeIpv4
= res
;
401 if (maybeIpv4
->ai_family
== AF_INET
)
403 maybeIpv4
= maybeIpv4
->ai_next
;
405 if (maybeIpv4
!= NULL
)
407 // else IPv6-only host, let the caller deal with first-IP anyway.
411 * NP: =(sockaddr_*) may alter the port. we don't want that.
412 * all we have been given as input was an IPA.
414 short portSaved
= port();
418 /* free the memory getaddrinfo() dynamically allocated. */
419 freeaddrinfo(resHead
);
423 Ip::Address::Address(struct sockaddr_in
const &s
)
430 Ip::Address::operator =(struct sockaddr_in
const &s
)
432 map4to6((const in_addr
)s
.sin_addr
, mSocketAddr_
.sin6_addr
);
433 mSocketAddr_
.sin6_port
= s
.sin_port
;
434 mSocketAddr_
.sin6_family
= AF_INET6
;
439 Ip::Address::operator =(const struct sockaddr_storage
&s
)
441 /* some AF_* magic to tell socket types apart and what we need to do */
442 if (s
.ss_family
== AF_INET6
) {
443 memcpy(&mSocketAddr_
, &s
, sizeof(struct sockaddr_in6
));
444 } else { // convert it to our storage mapping.
445 struct sockaddr_in
*sin
= (struct sockaddr_in
*)&s
;
446 mSocketAddr_
.sin6_port
= sin
->sin_port
;
447 map4to6( sin
->sin_addr
, mSocketAddr_
.sin6_addr
);
452 Ip::Address::Address(struct sockaddr_in6
const &s
)
459 Ip::Address::operator =(struct sockaddr_in6
const &s
)
461 memcpy(&mSocketAddr_
, &s
, sizeof(struct sockaddr_in6
));
466 Ip::Address::Address(struct in_addr
const &s
)
473 Ip::Address::operator =(struct in_addr
const &s
)
475 map4to6((const in_addr
)s
, mSocketAddr_
.sin6_addr
);
476 mSocketAddr_
.sin6_family
= AF_INET6
;
480 Ip::Address::Address(struct in6_addr
const &s
)
487 Ip::Address::operator =(struct in6_addr
const &s
)
490 memcpy(&mSocketAddr_
.sin6_addr
, &s
, sizeof(struct in6_addr
));
491 mSocketAddr_
.sin6_family
= AF_INET6
;
496 Ip::Address::Address(const Ip::Address
&s
)
502 Ip::Address::Address(const struct hostent
&s
)
509 Ip::Address::operator =(const struct hostent
&s
)
512 struct in_addr
* ipv4
= NULL
;
514 struct in6_addr
* ipv6
= NULL
;
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 */
524 switch (s
.h_addrtype
) {
527 ipv4
= (in_addr
*)(s
.h_addr_list
[0]);
533 ipv6
= (in6_addr
*)(s
.h_addr_list
[0]);
539 IASSERT("false",false);
546 Ip::Address::Address(const struct addrinfo
&s
)
553 Ip::Address::operator =(const struct addrinfo
&s
)
556 struct sockaddr_in
* ipv4
= NULL
;
558 struct sockaddr_in6
* ipv6
= NULL
;
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 */
571 switch (s
.ai_family
) {
574 ipv4
= (sockaddr_in
*)(s
.ai_addr
);
581 ipv6
= (sockaddr_in6
*)(s
.ai_addr
);
589 // attempt to handle partially initialised addrinfo.
590 // such as those where data only comes from getsockopt()
591 if (s
.ai_addr
!= NULL
) {
592 if (s
.ai_addrlen
== sizeof(struct sockaddr_in6
)) {
593 operator=(*((struct sockaddr_in6
*)s
.ai_addr
));
595 } else if (s
.ai_addrlen
== sizeof(struct sockaddr_in
)) {
596 operator=(*((struct sockaddr_in
*)s
.ai_addr
));
607 Ip::Address::getAddrInfo(struct addrinfo
*&dst
, int force
) const
613 memset(dst
, 0, sizeof(struct addrinfo
));
616 // Mac OS X does not emit a flag indicating the output is numeric (IP address)
620 dst
->ai_flags
= AI_NUMERICHOST
;
623 if (dst
->ai_socktype
== 0)
624 dst
->ai_socktype
= SOCK_STREAM
;
626 if (dst
->ai_socktype
== SOCK_STREAM
// implies TCP
627 && dst
->ai_protocol
== 0)
628 dst
->ai_protocol
= IPPROTO_TCP
;
630 if (dst
->ai_socktype
== SOCK_DGRAM
// implies UDP
631 && dst
->ai_protocol
== 0)
632 dst
->ai_protocol
= IPPROTO_UDP
;
634 if (force
== AF_INET6
|| (force
== AF_UNSPEC
&& Ip::EnableIpv6
&& isIPv6()) ) {
635 dst
->ai_addr
= (struct sockaddr
*)new sockaddr_in6
;
637 memset(dst
->ai_addr
,0,sizeof(struct sockaddr_in6
));
639 getSockAddr(*((struct sockaddr_in6
*)dst
->ai_addr
));
641 dst
->ai_addrlen
= sizeof(struct sockaddr_in6
);
643 dst
->ai_family
= ((struct sockaddr_in6
*)dst
->ai_addr
)->sin6_family
;
647 * Enable only if you must and please report to squid-dev if you find a need for this.
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.
653 * FreeBSD dies horribly when using dual-stack with it set.
654 * (43) Protocol not supported
656 dst
->ai_protocol
= IPPROTO_IPV6
;
659 } else if ( force
== AF_INET
|| (force
== AF_UNSPEC
&& isIPv4()) ) {
661 dst
->ai_addr
= (struct sockaddr
*)new sockaddr_in
;
663 memset(dst
->ai_addr
,0,sizeof(struct sockaddr_in
));
665 getSockAddr(*((struct sockaddr_in
*)dst
->ai_addr
));
667 dst
->ai_addrlen
= sizeof(struct sockaddr_in
);
669 dst
->ai_family
= ((struct sockaddr_in
*)dst
->ai_addr
)->sin_family
;
671 IASSERT("false",false);
676 Ip::Address::InitAddr(struct addrinfo
*&ai
)
680 memset(ai
,0,sizeof(struct addrinfo
));
683 // remove any existing data.
684 if (ai
->ai_addr
) delete ai
->ai_addr
;
686 ai
->ai_addr
= (struct sockaddr
*)new sockaddr_in6
;
687 memset(ai
->ai_addr
, 0, sizeof(struct sockaddr_in6
));
689 ai
->ai_addrlen
= sizeof(struct sockaddr_in6
);
694 Ip::Address::FreeAddr(struct addrinfo
*&ai
)
696 if (ai
== NULL
) return;
698 if (ai
->ai_addr
) delete ai
->ai_addr
;
704 // NP: name fields are NOT allocated at present.
711 Ip::Address::matchIPAddr(const Ip::Address
&rhs
) const
713 uint8_t *l
= (uint8_t*)mSocketAddr_
.sin6_addr
.s6_addr
;
714 uint8_t *r
= (uint8_t*)rhs
.mSocketAddr_
.sin6_addr
.s6_addr
;
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.
719 for (unsigned int i
= 0 ; i
< sizeof(mSocketAddr_
.sin6_addr
) ; ++i
) {
732 Ip::Address::compareWhole(const Ip::Address
&rhs
) const
734 return memcmp(this, &rhs
, sizeof(*this));
738 Ip::Address::operator ==(const Ip::Address
&s
) const
740 return (0 == matchIPAddr(s
));
744 Ip::Address::operator !=(const Ip::Address
&s
) const
746 return ! ( operator==(s
) );
750 Ip::Address::operator <=(const Ip::Address
&rhs
) const
752 if (isAnyAddr() && !rhs
.isAnyAddr())
755 return (matchIPAddr(rhs
) <= 0);
759 Ip::Address::operator >=(const Ip::Address
&rhs
) const
761 if (isNoAddr() && !rhs
.isNoAddr())
764 return ( matchIPAddr(rhs
) >= 0);
768 Ip::Address::operator >(const Ip::Address
&rhs
) const
770 if (isNoAddr() && !rhs
.isNoAddr())
773 return ( matchIPAddr(rhs
) > 0);
777 Ip::Address::operator <(const Ip::Address
&rhs
) const
779 if (isAnyAddr() && !rhs
.isAnyAddr())
782 return ( matchIPAddr(rhs
) < 0);
786 Ip::Address::port() const
788 return ntohs( mSocketAddr_
.sin6_port
);
792 Ip::Address::port(unsigned short prt
)
794 mSocketAddr_
.sin6_port
= htons(prt
);
800 * toStr Given a buffer writes a readable ascii version of the IPA and/or port stored
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.
807 * A copy of the buffer is also returned for simple immediate display.
810 Ip::Address::toStr(char* buf
, const unsigned int blen
, int force
) const
812 // Ensure we have a buffer.
817 /* some external code may have blindly memset a parent. */
818 /* thats okay, our default is known */
821 memcpy(buf
,"::\0", min(static_cast<unsigned int>(3),blen
));
823 memcpy(buf
,"0.0.0.0\0", min(static_cast<unsigned int>(8),blen
));
827 memset(buf
,0,blen
); // clear buffer before write
829 /* Pure-IPv6 CANNOT be displayed in IPv4 format. */
830 /* However IPv4 CAN. */
831 if ( force
== AF_INET
&& !isIPv4() ) {
833 memcpy(buf
, "{!IPv4}\0", min(static_cast<unsigned int>(8),blen
));
838 if ( force
== AF_INET6
|| (force
== AF_UNSPEC
&& isIPv6()) ) {
840 inet_ntop(AF_INET6
, &mSocketAddr_
.sin6_addr
, buf
, blen
);
842 } else if ( force
== AF_INET
|| (force
== AF_UNSPEC
&& isIPv4()) ) {
846 inet_ntop(AF_INET
, &tmp
, buf
, blen
);
848 debugs(14, DBG_CRITICAL
, "WARNING: Corrupt IP Address details OR required to display in unknown format (" <<
849 force
<< "). accepted={" << AF_UNSPEC
<< "," << AF_INET
<< "," << AF_INET6
<< "}");
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
);
852 memcpy(buf
,"dead:beef::\0", min(static_cast<unsigned int>(13),blen
));
860 Ip::Address::toHostStr(char *buf
, const unsigned int blen
) const
864 if (isIPv6() && blen
> 0) {
869 /* 8 being space for [ ] : and port digits */
871 toStr(p
, blen
-8, AF_INET6
);
873 toStr(p
, blen
-8, AF_INET
);
875 // find the end of the new string
876 while (*p
!= '\0' && p
< buf
+blen
)
879 if (isIPv6() && p
< (buf
+blen
-1) ) {
884 /* terminate just in case. */
887 /* return size of buffer now used */
892 Ip::Address::toUrl(char* buf
, unsigned int blen
) const
896 // Ensure we have a buffer.
902 p
+= toHostStr(p
, blen
);
904 if (mSocketAddr_
.sin6_port
> 0 && p
<= (buf
+blen
-7) ) {
905 // ':port' (short int) needs at most 6 bytes plus 1 for 0-terminator
906 snprintf(p
, 7, ":%d", port() );
909 // force a null-terminated string
916 Ip::Address::getSockAddr(struct sockaddr_storage
&addr
, const int family
) const
918 struct sockaddr_in
*sin
= NULL
;
920 if ( family
== AF_INET
&& !isIPv4()) {
921 // FIXME INET6: caller using the wrong socket type!
922 debugs(14, DBG_CRITICAL
, HERE
<< "Ip::Address::getSockAddr : Cannot convert non-IPv4 to IPv4. from " << *this);
926 if ( family
== AF_INET6
|| (family
== AF_UNSPEC
&& isIPv6()) ) {
927 struct sockaddr_in6
*ss6
= (struct sockaddr_in6
*)&addr
;
929 } else if ( family
== AF_INET
|| (family
== AF_UNSPEC
&& isIPv4()) ) {
930 sin
= (struct sockaddr_in
*)&addr
;
933 IASSERT("false",false);
938 Ip::Address::getSockAddr(struct sockaddr_in
&buf
) const
941 buf
.sin_family
= AF_INET
;
942 buf
.sin_port
= mSocketAddr_
.sin6_port
;
943 map6to4( mSocketAddr_
.sin6_addr
, buf
.sin_addr
);
945 debugs(14, DBG_CRITICAL
, HERE
<< "Ip::Address::getSockAddr : Cannot convert non-IPv4 to IPv4. from " << *this );
947 memset(&buf
,0xFFFFFFFF,sizeof(struct sockaddr_in
));
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 */
953 buf
.sin_len
= sizeof(struct sockaddr_in
);
958 Ip::Address::getSockAddr(struct sockaddr_in6
&buf
) const
960 memcpy(&buf
, &mSocketAddr_
, sizeof(struct sockaddr_in6
));
961 /* maintain address family. It may have changed inside us. */
962 buf
.sin6_family
= AF_INET6
;
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 */
966 buf
.sin6_len
= sizeof(struct sockaddr_in6
);
971 Ip::Address::map4to6(const struct in_addr
&in
, struct in6_addr
&out
) const
973 /* check for special cases */
975 if ( in
.s_addr
== 0x00000000) {
978 } else if ( in
.s_addr
== 0xFFFFFFFF) {
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];
992 Ip::Address::map6to4(const struct in6_addr
&in
, struct in_addr
&out
) const
998 memset(&out
, 0, sizeof(struct in_addr
));
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];
1006 Ip::Address::getInAddr(struct in6_addr
&buf
) const
1008 memcpy(&buf
, &mSocketAddr_
.sin6_addr
, sizeof(struct in6_addr
));
1012 Ip::Address::getInAddr(struct in_addr
&buf
) const
1015 map6to4(mSocketAddr_
.sin6_addr
, buf
);
1020 // non-compatible IPv6 Pure Address
1022 debugs(14, DBG_IMPORTANT
, HERE
<< "Ip::Address::getInAddr : Cannot convert non-IPv4 to IPv4. IPA=" << *this);
1023 memset(&buf
,0xFFFFFFFF,sizeof(struct in_addr
));