-
Notifications
You must be signed in to change notification settings - Fork 382
/
Copy pathSock_Connect.cpp
1070 lines (914 loc) · 31.5 KB
/
Sock_Connect.cpp
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
#include "ace/Sock_Connect.h"
#include "ace/INET_Addr.h"
#include "ace/Log_Category.h"
#include "ace/Handle_Set.h"
#include "ace/SString.h"
#include "ace/OS_Memory.h"
#include "ace/OS_NS_stdio.h"
#include "ace/ACE.h"
#include "ace/OS_NS_stdlib.h"
#include "ace/OS_NS_string.h"
#include "ace/OS_NS_sys_socket.h"
#include "ace/OS_NS_netdb.h"
#include "ace/OS_NS_unistd.h"
#include "ace/os_include/net/os_if.h"
#if defined (ACE_HAS_IPV6)
# include "ace/Guard_T.h"
# include "ace/Recursive_Thread_Mutex.h"
#endif /* ACE_HAS_IPV6 */
#if defined (ACE_HAS_GETIFADDRS)
# include "ace/os_include/os_ifaddrs.h"
#endif /* ACE_HAS_GETIFADDRS */
#if defined (ACE_VXWORKS) && (ACE_VXWORKS <= 0x670) && defined (__RTP__) && defined (ACE_HAS_IPV6)
const struct in6_addr in6addr_any = IN6ADDR_ANY_INIT;
const struct in6_addr in6addr_nodelocal_allnodes = IN6ADDR_NODELOCAL_ALLNODES_INIT;
const struct in6_addr in6addr_linklocal_allnodes = IN6ADDR_LINKLOCAL_ALLNODES_INIT;
const struct in6_addr in6addr_linklocal_allrouters = IN6ADDR_LINKLOCAL_ALLROUTERS_INIT;
#endif /* ACE_VXWORKS <= 0x670 && __RTP__ && ACE_HAS_IPV6 */
#if defined (ACE_WIN32)
# include "ace/OS_NS_stdio.h"
#endif
#if defined (ACE_HAS_IPV6)
// These defines support a generic usage based on
// the various SIGCF*IF ioctl implementations
# if defined (SIOCGLIFCONF)
# define SIOCGIFCONF_CMD SIOCGLIFCONF
# define IFREQ lifreq
# define IFCONF lifconf
# define IFC_REQ lifc_req
# define IFC_LEN lifc_len
# define IFC_BUF lifc_buf
# define IFR_ADDR lifr_addr
# define IFR_NAME lifr_name
# define IFR_FLAGS lifr_flags
# define SETFAMILY
# define IFC_FAMILY lifc_family
# define IFC_FLAGS lifc_flags
# define SA_FAMILY ss_family
# else
# define SIOCGIFCONF_CMD SIOCGIFCONF
# define IFREQ ifreq
# define IFCONF ifconf
# define IFC_REQ ifc_req
# define IFC_LEN ifc_len
# define IFC_BUF ifc_buf
# define IFR_ADDR ifr_addr
# define IFR_NAME ifr_name
# define IFR_FLAGS ifr_flags
# undef SETFAMILY
# define SA_FAMILY sa_family
# endif /* SIOCGLIFCONF */
# if defined (ACE_HAS_THREADS)
# include "ace/Object_Manager.h"
# endif /* ACE_HAS_THREADS */
namespace
{
// private:
// Used internally so not exported.
// Does this box have ipv4 turned on?
int ace_ipv4_enabled = -1;
// Does this box have ipv6 turned on?
int ace_ipv6_enabled = -1;
}
#else /* ACE_HAS_IPV6 */
# define SIOCGIFCONF_CMD SIOCGIFCONF
# define IFREQ ifreq
# define IFCONF ifconf
# define IFC_REQ ifc_req
# define IFC_LEN ifc_len
# define IFC_BUF ifc_buf
# define IFR_ADDR ifr_addr
# define IFR_NAME ifr_name
# define IFR_FLAGS ifr_flags
# undef SETFAMILY
# define SA_FAMILY sa_family
#endif /* ACE_HAS_IPV6 */
ACE_BEGIN_VERSIONED_NAMESPACE_DECL
// Bind socket to an unused port.
int
ACE::bind_port (ACE_HANDLE handle, ACE_UINT32 ip_addr, int address_family)
{
ACE_TRACE ("ACE::bind_port");
ACE_INET_Addr addr;
#if defined (ACE_HAS_IPV6)
if (address_family != PF_INET6)
// What do we do if it is PF_"INET6? Since it's 4 bytes, it must be an
// IPV4 address. Is there a difference? Why is this test done? dhinton
#else /* ACE_HAS_IPV6 */
ACE_UNUSED_ARG (address_family);
#endif /* !ACE_HAS_IPV6 */
addr = ACE_INET_Addr ((u_short)0, ip_addr);
#if defined (ACE_HAS_IPV6)
else if (ip_addr != INADDR_ANY)
// address_family == PF_INET6 and a non default IP address means to bind
// to the IPv4-mapped IPv6 address
addr.set ((u_short)0, ip_addr, 1, 1);
#endif /* ACE_HAS_IPV6 */
// The OS kernel should select a free port for us.
return ACE_OS::bind (handle,
(sockaddr*)addr.get_addr(),
addr.get_size());
}
int
ACE::get_bcast_addr (ACE_UINT32 &bcast_addr,
const ACE_TCHAR *host_name,
ACE_UINT32 host_addr,
ACE_HANDLE handle)
{
ACE_TRACE ("ACE::get_bcast_addr");
#if defined (ACE_LACKS_GET_BCAST_ADDR)
ACE_UNUSED_ARG (bcast_addr);
ACE_UNUSED_ARG (host_name);
ACE_UNUSED_ARG (host_addr);
ACE_UNUSED_ARG (handle);
ACE_NOTSUP_RETURN (-1);
#elif !defined(ACE_WIN32)
ACE_HANDLE s = handle;
if (s == ACE_INVALID_HANDLE)
s = ACE_OS::socket (AF_INET, SOCK_STREAM, 0);
if (s == ACE_INVALID_HANDLE)
ACELIB_ERROR_RETURN ((LM_ERROR,
ACE_TEXT ("%p\n"),
ACE_TEXT ("ACE_OS::socket")),
-1);
struct ifconf ifc;
char buf[BUFSIZ];
ifc.ifc_len = sizeof buf;
ifc.ifc_buf = buf;
// Get interface structure and initialize the addresses using UNIX
// techniques
if (ACE_OS::ioctl (s, SIOCGIFCONF_CMD, (char *) &ifc) == -1)
ACELIB_ERROR_RETURN ((LM_ERROR,
ACE_TEXT ("%p\n"),
ACE_TEXT ("ACE::get_bcast_addr:")
ACE_TEXT ("ioctl (get interface configuration)")),
-1);
struct ifreq *ifr = ifc.ifc_req;
struct sockaddr_in ip_addr;
// Get host ip address if necessary.
if (host_name)
{
hostent *hp = ACE_OS::gethostbyname (ACE_TEXT_ALWAYS_CHAR (host_name));
if (hp == 0)
return -1;
else
ACE_OS::memcpy ((char *) &ip_addr.sin_addr.s_addr,
# ifdef ACE_HOSTENT_H_ADDR
(char *) hp->ACE_HOSTENT_H_ADDR,
# else
(char *) hp->h_addr,
# endif
hp->h_length);
}
else
{
ACE_OS::memset ((void *) &ip_addr, 0, sizeof ip_addr);
ACE_OS::memcpy ((void *) &ip_addr.sin_addr,
(void*) &host_addr,
sizeof ip_addr.sin_addr);
}
#if !defined (__QNX__) && !defined (__FreeBSD__) && !defined(__NetBSD__) && !defined (__Lynx__)
for (int n = ifc.ifc_len / sizeof (struct ifreq) ; n > 0;
n--, ifr++)
#else
// see mk_broadcast@SOCK_Dgram_Bcast.cpp
for (int nbytes = ifc.ifc_len; nbytes >= (int) sizeof (struct ifreq) &&
((ifr->ifr_addr.sa_len > sizeof (struct sockaddr)) ?
(nbytes >= (int) sizeof (ifr->ifr_name) + ifr->ifr_addr.sa_len) : 1);
((ifr->ifr_addr.sa_len > sizeof (struct sockaddr)) ?
(nbytes -= sizeof (ifr->ifr_name) + ifr->ifr_addr.sa_len,
ifr = (struct ifreq *)
((caddr_t) &ifr->ifr_addr + ifr->ifr_addr.sa_len)) :
(nbytes -= sizeof (struct ifreq), ifr++)))
#endif /* !defined (__QNX__) && !defined (__FreeBSD__) && !defined(__NetBSD__) && !defined (__Lynx__) */
{
struct sockaddr_in if_addr;
// Compare host ip address with interface ip address.
ACE_OS::memcpy (&if_addr,
&ifr->ifr_addr,
sizeof if_addr);
if (ip_addr.sin_addr.s_addr != if_addr.sin_addr.s_addr)
continue;
if (ifr->ifr_addr.sa_family != AF_INET)
{
ACELIB_ERROR ((LM_ERROR,
ACE_TEXT ("%p\n"),
ACE_TEXT ("ACE::get_bcast_addr:")
ACE_TEXT ("Not AF_INET")));
continue;
}
struct ifreq flags = *ifr;
struct ifreq if_req = *ifr;
if (ACE_OS::ioctl (s, SIOCGIFFLAGS, (char *) &flags) == -1)
{
ACELIB_ERROR ((LM_ERROR,
ACE_TEXT ("%p\n"),
ACE_TEXT ("ACE::get_bcast_addr:")
ACE_TEXT (" ioctl (get interface flags)")));
continue;
}
if (ACE_BIT_DISABLED (flags.ifr_flags, IFF_UP))
{
ACELIB_ERROR ((LM_ERROR,
ACE_TEXT ("%p\n"),
ACE_TEXT ("ACE::get_bcast_addr:")
ACE_TEXT ("Network interface is not up")));
continue;
}
if (ACE_BIT_ENABLED (flags.ifr_flags, IFF_LOOPBACK))
continue;
if (ACE_BIT_ENABLED (flags.ifr_flags, IFF_BROADCAST))
{
if (ACE_OS::ioctl (s,
SIOCGIFBRDADDR,
(char *) &if_req) == -1)
ACELIB_ERROR ((LM_ERROR,
ACE_TEXT ("%p\n"),
ACE_TEXT ("ACE::get_bcast_addr:")
ACE_TEXT ("ioctl (get broadaddr)")));
else
{
ACE_OS::memcpy (&ip_addr,
&if_req.ifr_broadaddr,
sizeof if_req.ifr_broadaddr);
ACE_OS::memcpy ((void *) &host_addr,
(void *) &ip_addr.sin_addr,
sizeof host_addr);
if (handle == ACE_INVALID_HANDLE)
ACE_OS::close (s);
bcast_addr = host_addr;
return 0;
}
}
else
ACELIB_ERROR ((LM_ERROR,
ACE_TEXT ("%p\n"),
ACE_TEXT ("ACE::get_bcast_addr:")
ACE_TEXT ("Broadcast is not enabled for this interface.")));
if (handle == ACE_INVALID_HANDLE)
ACE_OS::close (s);
bcast_addr = host_addr;
return 0;
}
return 0;
#else
ACE_UNUSED_ARG (handle);
ACE_UNUSED_ARG (host_addr);
ACE_UNUSED_ARG (host_name);
bcast_addr = (ACE_UINT32 (INADDR_BROADCAST));
return 0;
#endif /* !ACE_WIN32 */
}
int
ACE::get_fqdn (ACE_INET_Addr const & addr,
char hostname[],
size_t len)
{
#ifndef ACE_LACKS_GETNAMEINFO
const socklen_t addr_size =
# ifdef ACE_HAS_IPV6
(addr.get_type () == PF_INET6) ? sizeof (sockaddr_in6) :
# endif
sizeof (sockaddr_in);
if (ACE_OS::getnameinfo ((const sockaddr *) addr.get_addr (),
addr_size, hostname,
static_cast<ACE_SOCKET_LEN> (len),
0, 0, NI_NAMEREQD) != 0)
return -1;
if (ACE::debug ())
ACELIB_DEBUG ((LM_DEBUG,
ACE_TEXT ("(%P|%t) - ACE::get_fqdn, ")
ACE_TEXT ("canonical host name is %C\n"),
hostname));
return 0;
#else // below, ACE_LACKS_GETNAMEINFO
int h_error; // Not the same as errno!
hostent hentry;
ACE_HOSTENT_DATA buf;
char * ip_addr = 0;
int ip_addr_size = 0;
if (addr.get_type () == AF_INET)
{
sockaddr_in * const sock_addr =
reinterpret_cast<sockaddr_in *> (addr.get_addr ());
ip_addr_size = sizeof sock_addr->sin_addr;
ip_addr = (char*) &sock_addr->sin_addr;
}
# ifdef ACE_HAS_IPV6
else
{
sockaddr_in6 * sock_addr =
reinterpret_cast<sockaddr_in6 *> (addr.get_addr ());
ip_addr_size = sizeof sock_addr->sin6_addr;
ip_addr = (char*) &sock_addr->sin6_addr;
}
# endif /* ACE_HAS_IPV6 */
// get the host entry for the address in question
hostent * const hp = ACE_OS::gethostbyaddr_r (ip_addr,
ip_addr_size,
addr.get_type (),
&hentry,
buf,
&h_error);
// if it's not found in the host file or the DNS datase, there is nothing
// much we can do. embed the IP address
if (hp == 0 || hp->h_name == 0)
return -1;
if (ACE::debug())
ACELIB_DEBUG ((LM_DEBUG,
ACE_TEXT ("(%P|%t) - ACE::get_fqdn, ")
ACE_TEXT ("canonical host name is %C\n"),
hp->h_name));
// check if the canonical name is the FQDN
if (!ACE_OS::strchr(hp->h_name, '.'))
{
// list of address
char** p;
// list of aliases
char** q;
// for every address and for every alias within the address, check and
// see if we can locate a FQDN
for (p = hp->h_addr_list; *p != 0; ++p)
{
for (q = hp->h_aliases; *q != 0; ++q)
{
if (ACE_OS::strchr(*q, '.'))
{
// we got an FQDN from an alias. use this
if (ACE_OS::strlen (*q) >= len)
// the hostname is too huge to fit into a
// buffer of size MAXHOSTNAMELEN
// should we check other aliases as well
// before bailing out prematurely?
// for right now, let's do it. this (short name)
// is atleast better than embedding the IP
// address in the profile
continue;
if (ACE::debug ())
ACELIB_DEBUG ((LM_DEBUG,
ACE_TEXT ("(%P|%t) - ACE::get_fqdn, ")
ACE_TEXT ("found fqdn within alias as %C\n"),
*q));
ACE_OS::strcpy (hostname, *q);
return 0;
}
}
}
}
// The canonical name may be an FQDN when we reach here.
// Alternatively, the canonical name (a non FQDN) may be the best
// we can do.
if (ACE_OS::strlen (hp->h_name) >= len)
{
// The hostname is too large to fit into a buffer of size
// MAXHOSTNAMELEN.
return -2;
}
else
{
ACE_OS::strcpy (hostname, hp->h_name);
}
return 0;
#endif /* ACE_LACKS_GETNAMEINFO */
}
#if defined (ACE_WIN32)
static int
get_ip_interfaces_win32 (size_t &count,
ACE_INET_Addr *&addrs)
{
int i, n_interfaces, status;
INTERFACE_INFO info[64];
SOCKET sock;
// Get an (overlapped) DGRAM socket to test with
sock = socket (AF_INET, SOCK_DGRAM, 0);
if (sock == INVALID_SOCKET)
return -1;
DWORD bytes;
status = WSAIoctl(sock,
SIO_GET_INTERFACE_LIST,
0,
0,
info,
sizeof(info),
&bytes,
0,
0);
closesocket (sock);
if (status == SOCKET_ERROR)
return -1;
n_interfaces = bytes / sizeof(INTERFACE_INFO);
// SIO_GET_INTERFACE_LIST does not work for IPv6
// Instead recent versions of Winsock2 add the new opcode
// SIO_ADDRESS_LIST_QUERY.
// If this is not available forget about IPv6 local interfaces:-/
int n_v6_interfaces = 0;
# if defined (ACE_HAS_IPV6) && defined (SIO_ADDRESS_LIST_QUERY)
LPSOCKET_ADDRESS_LIST v6info;
char *buffer;
DWORD buflen = sizeof (SOCKET_ADDRESS_LIST) + (63 * sizeof (SOCKET_ADDRESS));
ACE_NEW_RETURN (buffer,
char[buflen],
-1);
v6info = reinterpret_cast<LPSOCKET_ADDRESS_LIST> (buffer);
// Get an (overlapped) DGRAM socket to test with.
// If it fails only return IPv4 interfaces.
sock = socket (AF_INET6, SOCK_DGRAM, IPPROTO_UDP);
if (sock != INVALID_SOCKET)
{
status = WSAIoctl(sock,
SIO_ADDRESS_LIST_QUERY,
0,
0,
v6info,
buflen,
&bytes,
0,
0);
closesocket (sock);
if (status != SOCKET_ERROR)
n_v6_interfaces = v6info->iAddressCount;
}
# endif /* ACE_HAS_IPV6 */
ACE_NEW_RETURN (addrs,
ACE_INET_Addr[n_interfaces + n_v6_interfaces],
-1);
// Now go through the list and transfer the good ones to the list of
// because they're down or don't have an IP address.
for (count = 0, i = 0; i < n_interfaces; ++i)
{
LPINTERFACE_INFO lpii;
struct sockaddr_in *addrp = 0;
lpii = &info[i];
if (!(lpii->iiFlags & IFF_UP))
continue;
// We assume IPv4 addresses here
addrp = reinterpret_cast<struct sockaddr_in *> (&lpii->iiAddress.AddressIn);
if (addrp->sin_addr.s_addr == INADDR_ANY)
continue;
// Set the address for the caller.
addrs[count].set(addrp, sizeof(sockaddr_in));
++count;
}
# if defined (ACE_HAS_IPV6) && defined (SIO_ADDRESS_LIST_QUERY)
// Now go through the list and transfer the good ones to the list of
// because they're down or don't have an IP address.
for (i = 0; i < n_v6_interfaces; i++)
{
struct sockaddr_in6 *addr6p;
if (v6info->Address[i].lpSockaddr->sa_family != AF_INET6)
continue;
addr6p = reinterpret_cast<struct sockaddr_in6 *> (v6info->Address[i].lpSockaddr);
if (IN6_IS_ADDR_UNSPECIFIED(&addr6p->sin6_addr)) // IN6ADDR_ANY?
continue;
// Set the address for the caller.
addrs[count].set(reinterpret_cast<struct sockaddr_in *> (addr6p), sizeof(sockaddr_in6));
++count;
}
delete [] buffer; // Clean up
# endif /* ACE_HAS_IPV6 */
if (count == 0)
{
delete [] addrs;
addrs = 0;
}
return 0;
}
#elif defined (ACE_HAS_GETIFADDRS)
static int
get_ip_interfaces_getifaddrs (size_t &count,
ACE_INET_Addr *&addrs)
{
// Take advantage of the BSD getifaddrs function that simplifies
// access to connected interfaces.
struct ifaddrs *ifap = 0;
struct ifaddrs *p_if = 0;
if (::getifaddrs (&ifap) != 0)
return -1;
// Count number of interfaces.
size_t num_ifs = 0;
for (p_if = ifap; p_if != 0; p_if = p_if->ifa_next)
++num_ifs;
// Now create and initialize output array.
ACE_NEW_RETURN (addrs,
ACE_INET_Addr[num_ifs],
-1); // caller must free
// Pull the address out of each INET interface. Not every interface
// is for IP, so be careful to count properly. When setting the
// INET_Addr, note that the 3rd arg (0) says to leave the byte order
// (already in net byte order from the interface structure) as is.
count = 0;
for (p_if = ifap;
p_if != 0;
p_if = p_if->ifa_next)
{
if (p_if->ifa_addr == 0)
continue;
// Check to see if it's up.
if ((p_if->ifa_flags & IFF_UP) != IFF_UP)
continue;
if (p_if->ifa_addr->sa_family == AF_INET)
{
struct sockaddr_in *addr =
reinterpret_cast<sockaddr_in *> (p_if->ifa_addr);
// Sometimes the kernel returns 0.0.0.0 as the interface
// address, skip those...
if (addr->sin_addr.s_addr != INADDR_ANY)
{
addrs[count].set ((u_short) 0,
addr->sin_addr.s_addr,
0);
addrs[count].set_interface_name (p_if->ifa_name);
++count;
}
}
# if defined (ACE_HAS_IPV6)
else if (p_if->ifa_addr->sa_family == AF_INET6)
{
struct sockaddr_in6 *addr =
reinterpret_cast<sockaddr_in6 *> (p_if->ifa_addr);
// Skip the ANY address
if (!IN6_IS_ADDR_UNSPECIFIED(&addr->sin6_addr))
{
addrs[count].set (reinterpret_cast<struct sockaddr_in *> (addr),
sizeof(sockaddr_in6));
addrs[count].set_interface_name (p_if->ifa_name);
++count;
}
}
# endif /* ACE_HAS_IPV6 */
}
::freeifaddrs (ifap);
return 0;
}
#endif // ACE_WIN32 || ACE_HAS_GETIFADDRS
// return an array of all configured IP interfaces on this host, count
// rc = 0 on success (count == number of interfaces else -1 caller is
// responsible for calling delete [] on parray
int
ACE::get_ip_interfaces (size_t &count, ACE_INET_Addr *&addrs)
{
ACE_TRACE ("ACE::get_ip_interfaces");
count = 0;
addrs = 0;
#if defined (ACE_WIN32)
return get_ip_interfaces_win32 (count, addrs);
#elif defined (ACE_HAS_GETIFADDRS)
return get_ip_interfaces_getifaddrs (count, addrs);
#elif (defined (__unix) || defined (__unix__) || (defined (ACE_VXWORKS) && !defined (ACE_HAS_GETIFADDRS))) && !defined (ACE_LACKS_NETWORKING)
// COMMON (SVR4 and BSD) UNIX CODE
// Call specific routine as necessary.
ACE_HANDLE handle = ACE::get_handle();
if (handle == ACE_INVALID_HANDLE)
ACELIB_ERROR_RETURN ((LM_ERROR,
ACE_TEXT ("%p\n"),
ACE_TEXT ("ACE::get_ip_interfaces:open")),
-1);
size_t num_ifs = 0;
if (ACE::count_interfaces (handle, num_ifs))
{
ACE_OS::close (handle);
return -1;
}
// ioctl likes to have an extra ifreq structure to mark the end of
// what it returned, so increase the num_ifs by one.
++num_ifs;
struct IFREQ *ifs = 0;
ACE_NEW_RETURN (ifs,
struct IFREQ[num_ifs],
-1);
ACE_OS::memset (ifs, 0, num_ifs * sizeof (struct IFREQ));
std::unique_ptr<struct IFREQ[]> p_ifs (ifs);
if (p_ifs.get() == 0)
{
ACE_OS::close (handle);
errno = ENOMEM;
return -1;
}
struct IFCONF ifcfg;
ACE_OS::memset (&ifcfg, 0, sizeof (struct IFCONF));
# ifdef SETFAMILY
ifcfg.IFC_FAMILY = AF_UNSPEC; // request all families be returned
ifcfg.IFC_FLAGS = 0;
# endif
ifcfg.IFC_REQ = p_ifs.get ();
ifcfg.IFC_LEN = num_ifs * sizeof (struct IFREQ);
if (ACE_OS::ioctl (handle,
SIOCGIFCONF_CMD,
(caddr_t) &ifcfg) == -1)
{
ACE_OS::close (handle);
ACELIB_ERROR_RETURN ((LM_ERROR,
ACE_TEXT ("%p\n"),
ACE_TEXT ("ACE::get_ip_interfaces:")
ACE_TEXT ("ioctl - SIOCGIFCONF failed")),
-1);
}
ACE_OS::close (handle);
// Now create and initialize output array.
ACE_NEW_RETURN (addrs,
ACE_INET_Addr[num_ifs],
-1); // caller must free
struct IFREQ *pcur = p_ifs.get ();
size_t num_ifs_found = ifcfg.IFC_LEN / sizeof (struct IFREQ); // get the number of returned ifs
// Pull the address out of each INET interface. Not every interface
// is for IP, so be careful to count properly. When setting the
// INET_Addr, note that the 3rd arg (0) says to leave the byte order
// (already in net byte order from the interface structure) as is.
count = 0;
for (size_t i = 0;
i < num_ifs_found;
i++)
{
if (pcur->IFR_ADDR.SA_FAMILY == AF_INET
# if defined (ACE_HAS_IPV6)
|| pcur->IFR_ADDR.SA_FAMILY == AF_INET6
# endif
)
{
struct sockaddr_in *addr =
reinterpret_cast<sockaddr_in *> (&pcur->IFR_ADDR);
// Sometimes the kernel returns 0.0.0.0 as an IPv4 interface
// address; skip those...
if (addr->sin_addr.s_addr != 0
# if defined (ACE_HAS_IPV6)
|| (addr->sin_family == AF_INET6 &&
!IN6_IS_ADDR_UNSPECIFIED(&reinterpret_cast<sockaddr_in6 *>(addr)->sin6_addr))
# endif
)
{
int addrlen = static_cast<int> (sizeof (struct sockaddr_in));
# if defined (ACE_HAS_IPV6)
if (addr->sin_family == AF_INET6)
addrlen = static_cast<int> (sizeof (struct sockaddr_in6));
# endif
addrs[count].set (addr, addrlen);
++count;
}
}
#if !defined (__QNX__) && !defined (__FreeBSD__) && !defined(__NetBSD__) && !defined (__Lynx__)
++pcur;
#else
if (pcur->ifr_addr.sa_len <= sizeof (struct sockaddr))
{
++pcur;
}
else
{
pcur = (struct ifreq *)
(pcur->ifr_addr.sa_len + (caddr_t) &pcur->ifr_addr);
}
#endif /* !defined (__QNX__) && !defined (__FreeBSD__) && !defined(__NetBSD__) && !defined (__Lynx__) */
}
# if defined (ACE_HAS_IPV6) && !defined (ACE_LACKS_FSCANF)
// Retrieve IPv6 local interfaces by scanning /proc/net/if_inet6 if
// it exists. If we cannot open it then ignore possible IPv6
// interfaces, we did our best;-)
FILE* fp = 0;
char addr_p[8][5];
char s_ipaddr[64];
int scopeid;
struct addrinfo hints, *res0;
int error;
ACE_OS::memset (&hints, 0, sizeof (hints));
hints.ai_flags = AI_NUMERICHOST;
hints.ai_family = AF_INET6;
if ((fp = ACE_OS::fopen (ACE_TEXT ("/proc/net/if_inet6"), ACE_TEXT ("r"))) != 0)
{
while (fscanf (fp,
"%4s%4s%4s%4s%4s%4s%4s%4s %02x %*02x %*02x %*02x %*8s\n",
addr_p[0], addr_p[1], addr_p[2], addr_p[3],
addr_p[4], addr_p[5], addr_p[6], addr_p[7], &scopeid) != EOF)
{
// Format the address intoa proper IPv6 decimal address specification and
// resolve the resulting text using getaddrinfo().
const char* ip_fmt = "%s:%s:%s:%s:%s:%s:%s:%s%%%d";
ACE_OS::snprintf (s_ipaddr, 64, ip_fmt,
addr_p[0], addr_p[1], addr_p[2], addr_p[3],
addr_p[4], addr_p[5], addr_p[6], addr_p[7],
scopeid);
error = ACE_OS::getaddrinfo (s_ipaddr, 0, &hints, &res0);
if (error)
continue;
if (res0->ai_family == AF_INET6 &&
!IN6_IS_ADDR_UNSPECIFIED (&reinterpret_cast<sockaddr_in6 *> (res0->ai_addr)->sin6_addr))
{
addrs[count].set(reinterpret_cast<sockaddr_in *> (res0->ai_addr), res0->ai_addrlen);
++count;
}
ACE_OS::freeaddrinfo (res0);
}
ACE_OS::fclose (fp);
}
# endif /* ACE_HAS_IPV6 && !ACE_LACKS_FSCANF */
return 0;
#else
ACE_UNUSED_ARG (count);
ACE_UNUSED_ARG (addrs);
ACE_NOTSUP_RETURN (-1); // no implementation
#endif /* ACE_WIN32 */
}
// Helper routine for get_ip_interfaces, differs by UNIX platform so
// put into own subroutine. perform some ioctls to retrieve ifconf
// list of ifreq structs.
int
ACE::count_interfaces (ACE_HANDLE handle, size_t &how_many)
{
#if defined (SIOCGIFNUM)
# if defined (SIOCGLIFNUM)
int cmd = SIOCGLIFNUM;
struct lifnum if_num = {AF_UNSPEC,0,0};
# else
int cmd = SIOCGIFNUM;
int if_num = 0;
# endif /* SIOCGLIFNUM */
if (ACE_OS::ioctl (handle, cmd, (caddr_t)&if_num) == -1)
ACELIB_ERROR_RETURN ((LM_ERROR,
ACE_TEXT ("%p\n"),
ACE_TEXT ("ACE::count_interfaces:")
ACE_TEXT ("ioctl - SIOCGLIFNUM failed")),
-1);
# if defined (SIOCGLIFNUM)
how_many = if_num.lifn_count;
# else
how_many = if_num;
# endif /* SIOCGLIFNUM */
return 0;
#elif (defined (__unix) || defined (__unix__) || (defined (ACE_VXWORKS) && !defined (ACE_HAS_GETIFADDRS))) && !defined (ACE_LACKS_NETWORKING)
// Note: DEC CXX doesn't define "unix". BSD compatible OS: HP UX,
// SunOS 4.x perform some ioctls to retrieve ifconf list of
// ifreq structs no SIOCGIFNUM on SunOS 4.x, so use guess and scan
// algorithm
// Probably hard to put this many ifs in a unix box..
int const MAX_INTERFACES = 50;
// HACK - set to an unreasonable number
int const num_ifs = MAX_INTERFACES;
struct ifconf ifcfg;
size_t ifreq_size = num_ifs * sizeof (struct ifreq);
struct ifreq *p_ifs;
#if defined (ACE_HAS_ALLOC_HOOKS)
p_ifs = (struct IFREQ *)ACE_Allocator::instance()->malloc (ifreq_size);
#else
p_ifs = (struct ifreq *) ACE_OS::malloc (ifreq_size);
#endif /* ACE_HAS_ALLOC_HOOKS */
if (!p_ifs)
{
errno = ENOMEM;
return -1;
}
ACE_OS::memset (p_ifs, 0, ifreq_size);
ACE_OS::memset (&ifcfg, 0, sizeof (struct ifconf));
ifcfg.ifc_req = p_ifs;
ifcfg.ifc_len = ifreq_size;
if (ACE_OS::ioctl (handle,
SIOCGIFCONF_CMD,
(caddr_t) &ifcfg) == -1)
{
#if defined (ACE_HAS_ALLOC_HOOKS)
ACE_Allocator::instance()->free (ifcfg.ifc_req);
#else
ACE_OS::free (ifcfg.ifc_req);
#endif /* ACE_HAS_ALLOC_HOOKS */
ACELIB_ERROR_RETURN ((LM_ERROR,
ACE_TEXT ("%p\n"),
ACE_TEXT ("ACE::count_interfaces:")
ACE_TEXT ("ioctl - SIOCGIFCONF failed")),
-1);
}
int if_count = 0;
int i = 0;
// get if address out of ifreq buffers. ioctl puts a blank-named
// interface to mark the end of the returned interfaces.
for (i = 0;
i < num_ifs;
i++)
{
/* In OpenBSD, the length of the list is returned. */
ifcfg.ifc_len -= sizeof (struct ifreq);
if (ifcfg.ifc_len < 0)
break;
++if_count;
# if !defined (__QNX__) && !defined (__FreeBSD__) && !defined(__NetBSD__) && !defined (__Lynx__)
++p_ifs;
# else
if (p_ifs->ifr_addr.sa_len <= sizeof (struct sockaddr))
{
++p_ifs;
}
else
{
p_ifs = (struct ifreq *)
(p_ifs->ifr_addr.sa_len + (caddr_t) &p_ifs->ifr_addr);
}
# endif /* !defined (__QNX__) && !defined (__FreeBSD__) && !defined(__NetBSD__) && !defined (__Lynx__) */
}
#if defined (ACE_HAS_ALLOC_HOOKS)
ACE_Allocator::instance()->free (ifcfg.ifc_req);
#else
ACE_OS::free (ifcfg.ifc_req);
#endif /* ACE_HAS_ALLOC_HOOKS */
# if defined (ACE_HAS_IPV6)
FILE* fp = 0;
if ((fp = ACE_OS::fopen (ACE_TEXT ("/proc/net/if_inet6"), ACE_TEXT ("r"))) != 0)
{
// Scan the lines according to the expected format but don't really read any input
while (fscanf (fp, "%*32s %*02x %*02x %*02x %*02x %*8s\n") != EOF)
{
++if_count;
}
ACE_OS::fclose (fp);
}
# endif /* ACE_HAS_IPV6 && !ACE_LACKS_FSCANF */
how_many = if_count;
return 0;
#else
ACE_UNUSED_ARG (handle);
ACE_UNUSED_ARG (how_many);
ACE_NOTSUP_RETURN (-1); // no implementation
#endif /* sparc && SIOCGIFNUM */
}
// Routine to return a handle from which ioctl() requests can be made.
ACE_HANDLE
ACE::get_handle ()
{
ACE_HANDLE handle = ACE_INVALID_HANDLE;
#if defined (__unix) || defined (__unix__) || (defined (ACE_VXWORKS) && (ACE_VXWORKS >= 0x600))
// Note: DEC CXX doesn't define "unix" BSD compatible OS: SunOS 4.x
handle = ACE_OS::socket (PF_INET, SOCK_DGRAM, 0);
#endif /* __unux */
return handle;
}
#if defined (ACE_HAS_IPV6)
static int
ip_check (int &ipvn_enabled, int pf)
{
// We only get to this point if ipvn_enabled was -1 in the caller.
// Perform Double-Checked Locking Optimization.
ACE_MT (ACE_GUARD_RETURN (ACE_Recursive_Thread_Mutex, ace_mon,
*ACE_Static_Object_Lock::instance (), 0));
if (ipvn_enabled == -1)
{
#if defined (ACE_WIN32)
static bool recursing = false;
if (recursing) return 1;