Commit a6dab873 authored by Dr. Stephen Henson's avatar Dr. Stephen Henson
Browse files

PR: 2005 

Submitted by: steve@openssl.org

Some systems have broken IPv6 headers and/or implementations. If
OPENSSL_USE_IPV6 is set to 0 IPv6 is not used, if it is set to 1 it is used
and if undefined an attempt is made to detect at compile time by checking
if AF_INET6 is set and excluding known problem platforms.
parent 480b9e5d

crypto/bio/b_sock.c

+2 −7
Original line number Diff line number Diff line
@@ -88,11 +88,6 @@ NETDB_DEFINE_CONTEXT 
static int wsa_init_done=0;

#endif



#if defined(OPENSSL_SYS_BEOS_BONE)		

/* BONE's IP6 support is incomplete */

#undef AF_INET6

#endif



#if 0

static unsigned long BIO_ghbn_hits=0L;

static unsigned long BIO_ghbn_miss=0L;
@@ -654,7 +649,7 @@ int BIO_get_accept_socket(char *host, int bind_mode) 
		if (strchr(h,':'))

			{

			if (h[1]=='\0') h=NULL;

#ifdef AF_INET6

#if OPENSSL_USE_IPV6

			hint.ai_family = AF_INET6;

#else

			h=NULL;
@@ -720,7 +715,7 @@ again: 
			client = server;

			if (h == NULL || strcmp(h,"*") == 0)

				{

#ifdef AF_INET6

#if OPENSSL_USE_IPV6

				if (client.sa_family == AF_INET6)

					{

					struct sockaddr_in6 *sin6 =

crypto/bio/bss_dgram.c

+4 −0
Original line number Diff line number Diff line
@@ -429,12 +429,14 @@ static long dgram_ctrl(BIO *b, int cmd, long num, void *ptr) 
				&sockopt_val, sizeof(sockopt_val))) < 0)

				perror("setsockopt");

			break;

#if OPENSSL_USE_IPV6

		case AF_INET6:

			sockopt_val = IPV6_PMTUDISC_DO;

			if ((ret = setsockopt(b->num, IPPROTO_IPV6, IPV6_MTU_DISCOVER,

				&sockopt_val, sizeof(sockopt_val))) < 0)

				perror("setsockopt");

			break;

#endif

		default:

			ret = -1;

			break;
@@ -470,6 +472,7 @@ static long dgram_ctrl(BIO *b, int cmd, long num, void *ptr) 
				ret = data->mtu;

				}

			break;

#if OPENSSL_USE_IPV6

		case AF_INET6:

			if ((ret = getsockopt(b->num, IPPROTO_IPV6, IPV6_MTU, (void *)&sockopt_val,

				&sockopt_len)) < 0 || sockopt_val < 0)
@@ -485,6 +488,7 @@ static long dgram_ctrl(BIO *b, int cmd, long num, void *ptr) 
				ret = data->mtu;

				}

			break;

#endif

		default:

			ret = 0;

			break;

e_os.h

+12 −0
Original line number Diff line number Diff line
@@ -624,6 +624,18 @@ static unsigned int _strlen31(const char *str) 
#    define INVALID_SOCKET	(-1)

#    endif /* INVALID_SOCKET */

#  endif



/* Some IPv6 implementations are broken, disable them in known bad

 * versions.

 */

#  if !defined(OPENSSL_USE_IPV6)

#    if defined(AF_INET6) && !defined(OPENSSL_SYS_BEOS_BONE) && !defined(NETWARE_CLIB)

#      define OPENSSL_USE_IPV6 1

#    else

#      define OPENSSL_USE_IPV6 0

#    endif

#  endif



#endif



#if defined(__ultrix)