]>
git.ipfire.org Git - thirdparty/squid.git/blob - src/ip/Address.cc
2 * DEBUG: section 14 IP Storage and Handling
3 * AUTHOR: Amos Jeffries
5 * SQUID Internet Object Cache http://squid.nlanr.net/Squid/
6 * ----------------------------------------------------------
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.
17 * This Ip::Address code is copyright (C) 2007 by Treehouse Networks Ltd
18 * of New Zealand. It is published and Lisenced as an extension of
19 * squid under the same conditions as the main squid application.
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.
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.
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.
38 #include "compat/inet_ntop.h"
39 #include "compat/getaddrinfo.h"
41 #include "ip/Address.h"
53 #include <arpa/inet.h>
56 /* Debugging only. Dump the address content when a fatal assert is encountered. */
57 #define IASSERT(a,b) \
58 if(!(b)){ printf("assert \"%s\" at line %d\n", a, __LINE__); \
59 printf("Ip::Address invalid? with IsIPv4()=%c, IsIPv6()=%c\n",(IsIPv4()?'T':'F'),(IsIPv6()?'T':'F')); \
61 for(unsigned int i = 0; i < sizeof(m_SocketAddr.sin6_addr); i++) { \
62 printf(" %x", m_SocketAddr.sin6_addr.s6_addr[i]); \
63 } printf("\n"); assert(b); \
66 Ip::Address::Address()
71 Ip::Address::~Address()
73 memset(this,0,sizeof(Ip::Address
));
77 Ip::Address::GetCIDR() const
82 const uint8_t *ptr
= m_SocketAddr
.sin6_addr
.s6_addr
;
84 /* Let's scan all the bits from Most Significant to Least */
85 /* Until we find an "0" bit. Then, we return */
88 /* return IPv4 CIDR for any Mapped address */
89 /* Thus only check the mapped bit */
95 for (; shift
<sizeof(m_SocketAddr
.sin6_addr
) ; shift
++) {
100 continue ; /* A short-cut */
103 for (caught
= 0 , bit
= 7 ; !caught
&& (bit
<= 7); bit
--) {
104 caught
= ((byte
& 0x80) == 0x00); /* Found a '0' at 'bit' ? */
113 break; /* We have found the most significant "0" bit. */
120 Ip::Address::ApplyMask(Ip::Address
const &mask_addr
)
122 uint32_t *p1
= (uint32_t*)(&m_SocketAddr
.sin6_addr
);
123 uint32_t const *p2
= (uint32_t const *)(&mask_addr
.m_SocketAddr
.sin6_addr
);
124 unsigned int blen
= sizeof(m_SocketAddr
.sin6_addr
)/sizeof(uint32_t);
125 unsigned int changes
= 0;
127 for (unsigned int i
= 0; i
< blen
; i
++) {
128 if ((p1
[i
] & p2
[i
]) != p1
[i
])
138 Ip::Address::ApplyMask(const unsigned int cidr
, int mtype
)
140 uint8_t clearbits
= 0;
143 // validation and short-cuts.
147 if (cidr
> 32 && mtype
== AF_INET
)
151 /* CIDR /0 is NoAddr regardless of the IPv4/IPv6 protocol */
156 clearbits
= (uint8_t)( (mtype
==AF_INET6
?128:32) -cidr
);
162 p
= (uint8_t*)(&m_SocketAddr
.sin6_addr
) + 15;
164 for (; clearbits
>0 && p
>= (uint8_t*)&m_SocketAddr
.sin6_addr
; p
-- ) {
166 *p
&= ((0xFF << clearbits
) & 0xFF);
178 Ip::Address::IsSockAddr() const
180 return (m_SocketAddr
.sin6_port
!= 0);
184 Ip::Address::IsIPv4() const
186 return IsAnyAddr() || IsNoAddr() || IN6_IS_ADDR_V4MAPPED( &m_SocketAddr
.sin6_addr
);
190 Ip::Address::IsIPv6() const
192 return IsAnyAddr() || IsNoAddr() || !IN6_IS_ADDR_V4MAPPED( &m_SocketAddr
.sin6_addr
);
196 Ip::Address::IsAnyAddr() const
198 return IN6_IS_ADDR_UNSPECIFIED( &m_SocketAddr
.sin6_addr
);
201 /// NOTE: Does NOT clear the Port stored. Ony the Address and Type.
203 Ip::Address::SetAnyAddr()
205 memset(&m_SocketAddr
.sin6_addr
, 0, sizeof(struct in6_addr
) );
208 /// NOTE: completely empties the Ip::Address structure. Address, Port, Type, everything.
210 Ip::Address::SetEmpty()
212 memset(&m_SocketAddr
, 0, sizeof(m_SocketAddr
) );
215 const struct in6_addr
Ip::Address::v4_localhost
= {{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
216 0x00, 0x00, 0xff, 0xff, 0x7f, 0x00, 0x00, 0x01 }}
218 const struct in6_addr
Ip::Address::v4_anyaddr
= {{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
219 0x00, 0x00, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00 }}
221 const struct in6_addr
Ip::Address::v4_noaddr
= {{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
222 0x00, 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }}
224 const struct in6_addr
Ip::Address::v6_noaddr
= {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
225 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }}
230 Ip::Address::SetIPv4()
232 if ( IsLocalhost() ) {
233 m_SocketAddr
.sin6_addr
= v4_localhost
;
238 m_SocketAddr
.sin6_addr
= v4_anyaddr
;
245 // anything non-IPv4 and non-convertable is BAD.
250 Ip::Address::IsLocalhost() const
252 return IN6_IS_ADDR_LOOPBACK( &m_SocketAddr
.sin6_addr
) || IN6_ARE_ADDR_EQUAL( &m_SocketAddr
.sin6_addr
, &v4_localhost
);
256 Ip::Address::SetLocalhost()
258 if (Ip::EnableIpv6
) {
259 m_SocketAddr
.sin6_addr
= in6addr_loopback
;
260 m_SocketAddr
.sin6_family
= AF_INET6
;
262 m_SocketAddr
.sin6_addr
= v4_localhost
;
263 m_SocketAddr
.sin6_family
= AF_INET
;
268 Ip::Address::IsSiteLocal6() const
270 return IN6_IS_ADDR_SITELOCAL( &m_SocketAddr
.sin6_addr
);
274 Ip::Address::IsSlaac() const
276 return m_SocketAddr
.sin6_addr
.s6_addr
[10] == htons(0xff) &&
277 m_SocketAddr
.sin6_addr
.s6_addr
[11] == htons(0xfe);
281 Ip::Address::IsNoAddr() const
283 // IFF the address == 0xff..ff (all ones)
284 return IN6_ARE_ADDR_EQUAL( &m_SocketAddr
.sin6_addr
, &v6_noaddr
);
288 Ip::Address::SetNoAddr()
290 memset(&m_SocketAddr
.sin6_addr
, 0xFF, sizeof(struct in6_addr
) );
291 m_SocketAddr
.sin6_family
= AF_INET6
;
295 Ip::Address::GetReverseString6(char buf
[MAX_IPSTRLEN
], const struct in6_addr
&dat
) const
298 unsigned char const *r
= dat
.s6_addr
;
301 /* 4321:0:1:2:3:4:567:89ab */
303 /* 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. */
305 /* Work from the binary field. Anything else may have representation changes. */
306 /* The sin6_port and sin6_addr members shall be in network byte order. */
308 /* Compile Err: 'Too many arguments for format. */
310 for (int i
= 15; i
>= 0; i
--, p
+=4) {
311 snprintf(p
, 5, "%x.%x.", ((r
[i
])&0xf), (((r
[i
])>>4)&0xf) );
315 /* ip6.int is now deprecated TLD, use ip6.arpa instead. */
316 snprintf(p
,10,"ip6.arpa.");
322 Ip::Address::GetReverseString4(char buf
[MAX_IPSTRLEN
], const struct in_addr
&dat
) const
324 unsigned int i
= (unsigned int) ntohl(dat
.s_addr
);
325 snprintf(buf
, 32, "%u.%u.%u.%u.in-addr.arpa.",
334 Ip::Address::GetReverseString(char buf
[MAX_IPSTRLEN
], int show_type
) const
337 if (show_type
== AF_UNSPEC
) {
338 show_type
= IsIPv6() ? AF_INET6
: AF_INET
;
341 if (show_type
== AF_INET
&& IsIPv4()) {
342 struct in_addr
* tmp
= (struct in_addr
*)&m_SocketAddr
.sin6_addr
.s6_addr
[12];
343 return GetReverseString4(buf
, *tmp
);
344 } else if ( show_type
== AF_INET6
&& IsIPv6() ) {
345 return GetReverseString6(buf
, m_SocketAddr
.sin6_addr
);
348 debugs(14,0, "Unable to convert '" << NtoA(buf
,MAX_IPSTRLEN
) << "' to the rDNS type requested.");
356 Ip::Address::operator =(const Ip::Address
&s
)
358 memcpy(this, &s
, sizeof(Ip::Address
));
362 Ip::Address::Address(const char*s
)
365 LookupHostIP(s
, true);
369 Ip::Address::operator =(const char* s
)
371 return LookupHostIP(s
, true);
375 Ip::Address::GetHostByName(const char* s
)
377 return LookupHostIP(s
, false);
381 Ip::Address::LookupHostIP(const char *s
, bool nodns
)
387 struct addrinfo
*res
= NULL
;
389 struct addrinfo want
;
391 memset(&want
, 0, sizeof(struct addrinfo
));
393 want
.ai_flags
= AI_NUMERICHOST
; // prevent actual DNS lookups!
396 else if (!Ip::EnableIpv6
)
397 want
.ai_family
= AF_INET
; // maybe prevent IPv6 DNS lookups.
400 if ( (err
= getaddrinfo(s
, NULL
, &want
, &res
)) != 0) {
401 debugs(14,3, HERE
<< "Given Bad IP '" << s
<< "': " << gai_strerror(err
) );
402 /* free the memory getaddrinfo() dynamically allocated. */
411 * NP: =(sockaddr_*) may alter the port. we don't want that.
412 * all we have been given as input was an IPA.
418 /* free the memory getaddrinfo() dynamically allocated. */
426 Ip::Address::Address(struct sockaddr_in
const &s
)
433 Ip::Address::operator =(struct sockaddr_in
const &s
)
435 Map4to6((const in_addr
)s
.sin_addr
, m_SocketAddr
.sin6_addr
);
436 m_SocketAddr
.sin6_port
= s
.sin_port
;
437 m_SocketAddr
.sin6_family
= AF_INET6
;
442 Ip::Address::operator =(const struct sockaddr_storage
&s
)
444 /* some AF_* magic to tell socket types apart and what we need to do */
445 if (s
.ss_family
== AF_INET6
) {
446 memcpy(&m_SocketAddr
, &s
, sizeof(struct sockaddr_in
));
447 } else { // convert it to our storage mapping.
448 struct sockaddr_in
*sin
= (struct sockaddr_in
*)&s
;
449 m_SocketAddr
.sin6_port
= sin
->sin_port
;
450 Map4to6( sin
->sin_addr
, m_SocketAddr
.sin6_addr
);
455 Ip::Address::Address(struct sockaddr_in6
const &s
)
462 Ip::Address::operator =(struct sockaddr_in6
const &s
)
464 memcpy(&m_SocketAddr
, &s
, sizeof(struct sockaddr_in6
));
469 Ip::Address::Address(struct in_addr
const &s
)
476 Ip::Address::operator =(struct in_addr
const &s
)
478 Map4to6((const in_addr
)s
, m_SocketAddr
.sin6_addr
);
479 m_SocketAddr
.sin6_family
= AF_INET6
;
483 Ip::Address::Address(struct in6_addr
const &s
)
490 Ip::Address::operator =(struct in6_addr
const &s
)
493 memcpy(&m_SocketAddr
.sin6_addr
, &s
, sizeof(struct in6_addr
));
494 m_SocketAddr
.sin6_family
= AF_INET6
;
499 Ip::Address::Address(const Ip::Address
&s
)
505 Ip::Address::Address(Ip::Address
*s
)
509 memcpy(this, s
, sizeof(Ip::Address
));
512 Ip::Address::Address(const struct hostent
&s
)
519 Ip::Address::operator =(const struct hostent
&s
)
522 struct in_addr
* ipv4
= NULL
;
524 struct in6_addr
* ipv6
= NULL
;
527 // char *h_name; /* official name of host */
528 // char **h_aliases; /* alias list */
529 // int h_addrtype; /* host address type */
530 // int h_length; /* length of address */
531 // char **h_addr_list; /* list of addresses */
534 switch (s
.h_addrtype
) {
537 ipv4
= (in_addr
*)(s
.h_addr_list
[0]);
543 ipv6
= (in6_addr
*)(s
.h_addr_list
[0]);
549 IASSERT("false",false);
556 Ip::Address::Address(const struct addrinfo
&s
)
563 Ip::Address::operator =(const struct addrinfo
&s
)
566 struct sockaddr_in
* ipv4
= NULL
;
568 struct sockaddr_in6
* ipv6
= NULL
;
571 // int ai_flags; /* input flags */
572 // int ai_family; /* protocol family for socket */
573 // int ai_socktype; /* socket type */
574 // int ai_protocol; /* protocol for socket */
575 // socklen_t ai_addrlen; /* length of socket-address */
576 // struct sockaddr *ai_addr; /* socket-address for socket */
577 // char *ai_canonname; /* canonical name for service location */
578 // struct addrinfo *ai_next; /* pointer to next in list */
581 switch (s
.ai_family
) {
584 ipv4
= (sockaddr_in
*)(s
.ai_addr
);
591 ipv6
= (sockaddr_in6
*)(s
.ai_addr
);
599 // attempt to handle partially initialised addrinfo.
600 // such as those where data only comes from getsockopt()
601 if (s
.ai_addr
!= NULL
) {
602 if (s
.ai_addrlen
== sizeof(struct sockaddr_in6
)) {
603 operator=(*((struct sockaddr_in6
*)s
.ai_addr
));
605 } else if (s
.ai_addrlen
== sizeof(struct sockaddr_in
)) {
606 operator=(*((struct sockaddr_in
*)s
.ai_addr
));
617 Ip::Address::GetAddrInfo(struct addrinfo
*&dst
, int force
) const
623 memset(dst
, 0, sizeof(struct addrinfo
));
626 dst
->ai_flags
= AI_NUMERICHOST
;
628 if (dst
->ai_socktype
== 0)
629 dst
->ai_socktype
= SOCK_STREAM
;
631 if (dst
->ai_socktype
== SOCK_STREAM
// implies TCP
632 && dst
->ai_protocol
== 0)
633 dst
->ai_protocol
= IPPROTO_TCP
;
635 if (dst
->ai_socktype
== SOCK_DGRAM
// implies UDP
636 && dst
->ai_protocol
== 0)
637 dst
->ai_protocol
= IPPROTO_UDP
;
639 if (force
== AF_INET6
|| (force
== AF_UNSPEC
&& IsIPv6()) ) {
640 dst
->ai_addr
= (struct sockaddr
*)new sockaddr_in6
;
642 memset(dst
->ai_addr
,0,sizeof(struct sockaddr_in6
));
644 GetSockAddr(*((struct sockaddr_in6
*)dst
->ai_addr
));
646 dst
->ai_addrlen
= sizeof(struct sockaddr_in6
);
648 dst
->ai_family
= ((struct sockaddr_in6
*)dst
->ai_addr
)->sin6_family
;
652 * Enable only if you must and please report to squid-dev if you find a need for this.
654 * Vista may need this to cope with dual-stack (unsetting IP6_V6ONLY).
655 * http://msdn.microsoft.com/en-us/library/ms738574(VS.85).aspx
656 * Linux appears to only do some things when its present.
658 * FreeBSD dies horribly when using dual-stack with it set.
659 * (43) Protocol not supported
661 dst
->ai_protocol
= IPPROTO_IPV6
;
664 } else if ( force
== AF_INET
|| (force
== AF_UNSPEC
&& IsIPv4()) ) {
666 dst
->ai_addr
= (struct sockaddr
*)new sockaddr_in
;
668 memset(dst
->ai_addr
,0,sizeof(struct sockaddr_in
));
670 GetSockAddr(*((struct sockaddr_in
*)dst
->ai_addr
));
672 dst
->ai_addrlen
= sizeof(struct sockaddr_in
);
674 dst
->ai_family
= ((struct sockaddr_in
*)dst
->ai_addr
)->sin_family
;
676 IASSERT("false",false);
681 Ip::Address::InitAddrInfo(struct addrinfo
*&ai
)
685 memset(ai
,0,sizeof(struct addrinfo
));
688 // remove any existing data.
689 if (ai
->ai_addr
) delete ai
->ai_addr
;
691 ai
->ai_addr
= (struct sockaddr
*)new sockaddr_in6
;
692 memset(ai
->ai_addr
, 0, sizeof(struct sockaddr_in6
));
694 ai
->ai_addrlen
= sizeof(struct sockaddr_in6
);
699 Ip::Address::FreeAddrInfo(struct addrinfo
*&ai
)
701 if (ai
== NULL
) return;
703 if (ai
->ai_addr
) delete ai
->ai_addr
;
709 // NP: name fields are NOT allocated at present.
716 Ip::Address::matchIPAddr(const Ip::Address
&rhs
) const
718 uint8_t *l
= (uint8_t*)m_SocketAddr
.sin6_addr
.s6_addr
;
719 uint8_t *r
= (uint8_t*)rhs
.m_SocketAddr
.sin6_addr
.s6_addr
;
721 // loop a byte-wise compare
722 // NP: match MUST be R-to-L : L-to-R produces inconsistent gt/lt results at varying CIDR
723 // expected difference on CIDR is gt/eq or lt/eq ONLY.
724 for (unsigned int i
= 0 ; i
< sizeof(m_SocketAddr
.sin6_addr
) ; i
++) {
737 Ip::Address::compareWhole(const Ip::Address
&rhs
) const
739 return memcmp(this, &rhs
, sizeof(*this));
743 Ip::Address::operator ==(const Ip::Address
&s
) const
745 return (0 == matchIPAddr(s
));
749 Ip::Address::operator !=(const Ip::Address
&s
) const
751 return ! ( operator==(s
) );
755 Ip::Address::operator <=(const Ip::Address
&rhs
) const
757 if (IsAnyAddr() && !rhs
.IsAnyAddr())
760 return (matchIPAddr(rhs
) <= 0);
764 Ip::Address::operator >=(const Ip::Address
&rhs
) const
766 if (IsNoAddr() && !rhs
.IsNoAddr())
769 return ( matchIPAddr(rhs
) >= 0);
773 Ip::Address::operator >(const Ip::Address
&rhs
) const
775 if (IsNoAddr() && !rhs
.IsNoAddr())
778 return ( matchIPAddr(rhs
) > 0);
782 Ip::Address::operator <(const Ip::Address
&rhs
) const
784 if (IsAnyAddr() && !rhs
.IsAnyAddr())
787 return ( matchIPAddr(rhs
) < 0);
791 Ip::Address::GetPort() const
793 return ntohs( m_SocketAddr
.sin6_port
);
797 Ip::Address::SetPort(u_short prt
)
799 m_SocketAddr
.sin6_port
= htons(prt
);
805 * NtoA Given a buffer writes a readable ascii version of the IPA and/or port stored
807 * Buffer must be of a size large enough to hold the converted address.
808 * This size is provided in the form of a global defined variable MAX_IPSTRLEN
809 * Should a buffer shorter be provided the string result will be truncated
810 * at the length of the available buffer.
812 * A copy of the buffer is also returned for simple immediate display.
815 Ip::Address::NtoA(char* buf
, const unsigned int blen
, int force
) const
817 // Ensure we have a buffer.
822 /* some external code may have blindly memset a parent. */
823 /* thats okay, our default is known */
825 memcpy(buf
,"::\0", min(static_cast<unsigned int>(3),blen
));
829 memset(buf
,0,blen
); // clear buffer before write
831 /* Pure-IPv6 CANNOT be displayed in IPv4 format. */
832 /* However IPv4 CAN. */
833 if ( force
== AF_INET
&& !IsIPv4() ) {
835 memcpy(buf
, "{!IPv4}\0", min(static_cast<unsigned int>(8),blen
));
840 if ( force
== AF_INET6
|| (force
== AF_UNSPEC
&& IsIPv6()) ) {
842 inet_ntop(AF_INET6
, &m_SocketAddr
.sin6_addr
, buf
, blen
);
844 } else if ( force
== AF_INET
|| (force
== AF_UNSPEC
&& IsIPv4()) ) {
848 inet_ntop(AF_INET
, &tmp
, buf
, blen
);
850 debugs(14,0,"WARNING: Corrupt IP Address details OR required to display in unknown format (" <<
851 force
<< "). accepted={" << AF_UNSPEC
<< "," << AF_INET
<< "," << AF_INET6
<< "}");
852 fprintf(stderr
,"WARNING: Corrupt IP Address details OR required to display in unknown format (%d). accepted={%d,%d,%d} ",
853 force
, AF_UNSPEC
, AF_INET
, AF_INET6
);
854 memcpy(buf
,"dead:beef::\0", min(static_cast<unsigned int>(13),blen
));
862 Ip::Address::ToHostname(char *buf
, const unsigned int blen
) const
866 if (IsIPv6() && blen
> 0) {
871 /* 8 being space for [ ] : and port digits */
873 NtoA(p
, blen
-8, AF_INET6
);
875 NtoA(p
, blen
-8, AF_INET
);
877 // find the end of the new string
878 while (*p
!= '\0' && p
< buf
+blen
)
881 if (IsIPv6() && p
< (buf
+blen
-1) ) {
886 /* terminate just in case. */
889 /* return size of buffer now used */
894 Ip::Address::ToURL(char* buf
, unsigned int blen
) const
898 // Ensure we have a buffer.
904 p
+= ToHostname(p
, blen
);
906 if (m_SocketAddr
.sin6_port
> 0 && p
<= (buf
+blen
-7) ) {
907 // ':port' (short int) needs at most 6 bytes plus 1 for 0-terminator
908 snprintf(p
, 7, ":%d", GetPort() );
911 // force a null-terminated string
918 Ip::Address::GetSockAddr(struct sockaddr_storage
&addr
, const int family
) const
920 struct sockaddr_in
*sin
= NULL
;
922 if ( family
== AF_INET
&& !IsIPv4()) {
923 // FIXME INET6: caller using the wrong socket type!
924 debugs(14, DBG_CRITICAL
, HERE
<< "Ip::Address::GetSockAddr : Cannot convert non-IPv4 to IPv4. from " << *this);
928 if ( family
== AF_INET6
|| (family
== AF_UNSPEC
&& IsIPv6()) ) {
929 struct sockaddr_in6
*ss6
= (struct sockaddr_in6
*)&addr
;
931 } else if ( family
== AF_INET
|| (family
== AF_UNSPEC
&& IsIPv4()) ) {
932 sin
= (struct sockaddr_in
*)&addr
;
935 IASSERT("false",false);
940 Ip::Address::GetSockAddr(struct sockaddr_in
&buf
) const
943 buf
.sin_family
= AF_INET
;
944 buf
.sin_port
= m_SocketAddr
.sin6_port
;
945 Map6to4( m_SocketAddr
.sin6_addr
, buf
.sin_addr
);
947 debugs(14, DBG_CRITICAL
, HERE
<< "Ip::Address::GetSockAddr : Cannot convert non-IPv4 to IPv4. from " << *this );
949 memset(&buf
,0xFFFFFFFF,sizeof(struct sockaddr_in
));
953 #if HAVE_SIN_LEN_IN_SAI
954 /* not all OS have this field, BUT when they do it can be a problem if set wrong */
955 buf
.sin_len
= sizeof(struct sockaddr_in
);
960 Ip::Address::GetSockAddr(struct sockaddr_in6
&buf
) const
962 memcpy(&buf
, &m_SocketAddr
, sizeof(struct sockaddr_in6
));
963 /* maintain address family. It may have changed inside us. */
964 buf
.sin6_family
= AF_INET6
;
966 #if HAVE_SIN6_LEN_IN_SAI
967 /* not all OS have this field, BUT when they do it can be a problem if set wrong */
968 buf
.sin6_len
= sizeof(struct sockaddr_in6
);
973 Ip::Address::Map4to6(const struct in_addr
&in
, struct in6_addr
&out
) const
975 /* check for special cases */
977 if ( in
.s_addr
== 0x00000000) {
980 } else if ( in
.s_addr
== 0xFFFFFFFF) {
986 out
.s6_addr
[12] = ((uint8_t *)&in
.s_addr
)[0];
987 out
.s6_addr
[13] = ((uint8_t *)&in
.s_addr
)[1];
988 out
.s6_addr
[14] = ((uint8_t *)&in
.s_addr
)[2];
989 out
.s6_addr
[15] = ((uint8_t *)&in
.s_addr
)[3];
994 Ip::Address::Map6to4(const struct in6_addr
&in
, struct in_addr
&out
) const
1000 memset(&out
, 0, sizeof(struct in_addr
));
1001 ((uint8_t *)&out
.s_addr
)[0] = in
.s6_addr
[12];
1002 ((uint8_t *)&out
.s_addr
)[1] = in
.s6_addr
[13];
1003 ((uint8_t *)&out
.s_addr
)[2] = in
.s6_addr
[14];
1004 ((uint8_t *)&out
.s_addr
)[3] = in
.s6_addr
[15];
1008 Ip::Address::GetInAddr(in6_addr
&buf
) const
1010 memcpy(&buf
, &m_SocketAddr
.sin6_addr
, sizeof(struct in6_addr
));
1014 Ip::Address::GetInAddr(struct in_addr
&buf
) const
1017 Map6to4((const in6_addr
)m_SocketAddr
.sin6_addr
, buf
);
1022 // non-compatible IPv6 Pure Address
1024 debugs(14,1, HERE
<< "Ip::Address::GetInAddr : Cannot convert non-IPv4 to IPv4. IPA=" << *this);
1025 memset(&buf
,0xFFFFFFFF,sizeof(struct in_addr
));