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PR: 2005

Browse source 
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.
This commit is contained in:
Dr. Stephen Henson 2009-08-26 15:15:15 +00:00
parent 480b9e5d29
commit a6dab873d9
3 changed files with 18 additions and 7 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

9
crypto/bio/b_sock.c
View file

@ -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 =

4
crypto/bio/bss_dgram.c
View file

@ -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;

12
e_os.h
View file

@ -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)