#include <openssl/bio.h>
-#ifdef OPENSSL_SYS_WIN32
+#if defined(OPENSSL_SYS_WIN32) || defined(OPENSSL_SYS_VMS)
#include <sys/timeb.h>
#endif
+#ifdef OPENSSL_SYS_LINUX
#define IP_MTU 14 /* linux is lame */
+#endif
#ifdef WATT32
#define sock_write SockWrite /* Watt-32 uses same names */
static int BIO_dgram_should_retry(int s);
+static void get_current_time(struct timeval *t);
+
static BIO_METHOD methods_dgramp=
{
BIO_TYPE_DGRAM,
typedef struct bio_dgram_data_st
{
- struct sockaddr peer;
+#if OPENSSL_USE_IPV6
+ struct sockaddr_storage peer;
+#else
+ struct sockaddr_in peer;
+#endif
unsigned int connected;
unsigned int _errno;
unsigned int mtu;
- struct timeval hstimeoutdiff;
- struct timeval hstimeout;
+ struct timeval next_timeout;
+ struct timeval socket_timeout;
} bio_dgram_data;
BIO_METHOD *BIO_s_datagram(void)
}
return(1);
}
-
+
+static void dgram_adjust_rcv_timeout(BIO *b)
+ {
+#if defined(SO_RCVTIMEO)
+ bio_dgram_data *data = (bio_dgram_data *)b->ptr;
+ int sz = sizeof(int);
+
+ /* Is a timer active? */
+ if (data->next_timeout.tv_sec > 0 || data->next_timeout.tv_usec > 0)
+ {
+ struct timeval timenow, timeleft;
+
+ /* Read current socket timeout */
+#ifdef OPENSSL_SYS_WINDOWS
+ int timeout;
+ if (getsockopt(b->num, SOL_SOCKET, SO_RCVTIMEO,
+ (void*)&timeout, &sz) < 0)
+ { perror("getsockopt"); }
+ else
+ {
+ data->socket_timeout.tv_sec = timeout / 1000;
+ data->socket_timeout.tv_usec = (timeout % 1000) * 1000;
+ }
+#else
+ if ( getsockopt(b->num, SOL_SOCKET, SO_RCVTIMEO,
+ &(data->socket_timeout), (void *)&sz) < 0)
+ { perror("getsockopt"); }
+#endif
+
+ /* Get current time */
+ get_current_time(&timenow);
+
+ /* Calculate time left until timer expires */
+ memcpy(&timeleft, &(data->next_timeout), sizeof(struct timeval));
+ timeleft.tv_sec -= timenow.tv_sec;
+ timeleft.tv_usec -= timenow.tv_usec;
+ if (timeleft.tv_usec < 0)
+ {
+ timeleft.tv_sec--;
+ timeleft.tv_usec += 1000000;
+ }
+
+ if (timeleft.tv_sec < 0)
+ {
+ timeleft.tv_sec = 0;
+ timeleft.tv_usec = 1;
+ }
+
+ /* Adjust socket timeout if next handhake message timer
+ * will expire earlier.
+ */
+ if ((data->socket_timeout.tv_sec == 0 && data->socket_timeout.tv_usec == 0) ||
+ (data->socket_timeout.tv_sec > timeleft.tv_sec) ||
+ (data->socket_timeout.tv_sec == timeleft.tv_sec &&
+ data->socket_timeout.tv_usec >= timeleft.tv_usec))
+ {
+#ifdef OPENSSL_SYS_WINDOWS
+ timeout = timeleft.tv_sec * 1000 + timeleft.tv_usec / 1000;
+ if (setsockopt(b->num, SOL_SOCKET, SO_RCVTIMEO,
+ (void*)&timeout, sizeof(timeout)) < 0)
+ { perror("setsockopt"); }
+#else
+ if ( setsockopt(b->num, SOL_SOCKET, SO_RCVTIMEO, &timeleft,
+ sizeof(struct timeval)) < 0)
+ { perror("setsockopt"); }
+#endif
+ }
+ }
+#endif
+ }
+
+static void dgram_reset_rcv_timeout(BIO *b)
+ {
+#if defined(SO_RCVTIMEO)
+ bio_dgram_data *data = (bio_dgram_data *)b->ptr;
+
+ /* Is a timer active? */
+ if (data->next_timeout.tv_sec > 0 || data->next_timeout.tv_usec > 0)
+ {
+#ifdef OPENSSL_SYS_WINDOWS
+ int timeout = data->socket_timeout.tv_sec * 1000 +
+ data->socket_timeout.tv_usec / 1000;
+ if (setsockopt(b->num, SOL_SOCKET, SO_RCVTIMEO,
+ (void*)&timeout, sizeof(timeout)) < 0)
+ { perror("setsockopt"); }
+#else
+ if ( setsockopt(b->num, SOL_SOCKET, SO_RCVTIMEO, &(data->socket_timeout),
+ sizeof(struct timeval)) < 0)
+ { perror("setsockopt"); }
+#endif
+ }
+#endif
+ }
+
static int dgram_read(BIO *b, char *out, int outl)
{
int ret=0;
bio_dgram_data *data = (bio_dgram_data *)b->ptr;
- struct sockaddr peer;
+#if OPENSSL_USE_IPV6
+ struct sockaddr_storage peer;
+#else
+ struct sockaddr_in peer;
+#endif
int peerlen = sizeof(peer);
if (out != NULL)
* but this is not universal. Cast to (void *) to avoid
* compiler warnings.
*/
- ret=recvfrom(b->num,out,outl,0,&peer,(void *)&peerlen);
+ dgram_adjust_rcv_timeout(b);
+ ret=recvfrom(b->num,out,outl,0,(struct sockaddr *)&peer,(void *)&peerlen);
+ dgram_reset_rcv_timeout(b);
- if ( ! data->connected && ret > 0)
- BIO_ctrl(b, BIO_CTRL_DGRAM_CONNECT, 0, &peer);
+ if ( ! data->connected && ret >= 0)
+ BIO_ctrl(b, BIO_CTRL_DGRAM_SET_PEER, 0, &peer);
BIO_clear_retry_flags(b);
- if (ret <= 0)
+ if (ret < 0)
{
if (BIO_dgram_should_retry(ret))
{
BIO_set_retry_read(b);
data->_errno = get_last_socket_error();
}
- memset(&(data->hstimeout), 0, sizeof(struct timeval));
- }
- else
- {
- if (data->hstimeout.tv_sec > 0 || data->hstimeout.tv_usec > 0)
- {
- struct timeval curtime;
-#ifdef OPENSSL_SYS_WIN32
- struct _timeb tb;
- _ftime(&tb);
- curtime.tv_sec = (long)tb.time;
- curtime.tv_usec = (long)tb.millitm * 1000;
-#else
- gettimeofday(&curtime, NULL);
-#endif
-
- if (curtime.tv_sec >= data->hstimeout.tv_sec &&
- curtime.tv_usec >= data->hstimeout.tv_usec)
- {
- data->_errno = EAGAIN;
- ret = -1;
- memset(&(data->hstimeout), 0, sizeof(struct timeval));
- }
- }
}
}
return(ret);
bio_dgram_data *data = (bio_dgram_data *)b->ptr;
clear_socket_error();
- if ( data->connected )
- ret=writesocket(b->num,in,inl);
- else
+ if ( data->connected )
+ ret=writesocket(b->num,in,inl);
+ else
+#if OPENSSL_USE_IPV6
+ if (data->peer.ss_family == AF_INET)
+#if defined(NETWARE_CLIB) && defined(NETWARE_BSDSOCK)
+ ret=sendto(b->num, (char *)in, inl, 0, (const struct sockaddr *)&data->peer, sizeof(struct sockaddr_in));
+#else
+ ret=sendto(b->num, in, inl, 0, (const struct sockaddr *)&data->peer, sizeof(struct sockaddr_in));
+#endif
+ else
+#if defined(NETWARE_CLIB) && defined(NETWARE_BSDSOCK)
+ ret=sendto(b->num, (char *)in, inl, 0, (const struct sockaddr *)&data->peer, sizeof(struct sockaddr_in6));
+#else
+ ret=sendto(b->num, in, inl, 0, (const struct sockaddr *)&data->peer, sizeof(struct sockaddr_in6));
+#endif
+#else
#if defined(NETWARE_CLIB) && defined(NETWARE_BSDSOCK)
- ret=sendto(b->num, (char *)in, inl, 0, &data->peer, sizeof(data->peer));
+ ret=sendto(b->num, (char *)in, inl, 0, (const struct sockaddr *)&data->peer, sizeof(struct sockaddr_in));
#else
- ret=sendto(b->num, in, inl, 0, &data->peer, sizeof(data->peer));
+ ret=sendto(b->num, in, inl, 0, (const struct sockaddr *)&data->peer, sizeof(struct sockaddr_in));
+#endif
#endif
BIO_clear_retry_flags(b);
if (ret <= 0)
{
- if (BIO_sock_should_retry(ret))
+ if (BIO_dgram_should_retry(ret))
{
BIO_set_retry_write(b);
data->_errno = get_last_socket_error();
int *ip;
struct sockaddr *to = NULL;
bio_dgram_data *data = NULL;
+#if defined(IP_MTU_DISCOVER) || defined(IP_MTU)
long sockopt_val = 0;
unsigned int sockopt_len = 0;
+#endif
+#ifdef OPENSSL_SYS_LINUX
+ socklen_t addr_len;
+ struct sockaddr_storage addr;
+#endif
data = (bio_dgram_data *)b->ptr;
else
{
#endif
- memcpy(&(data->peer),to, sizeof(struct sockaddr));
+#if OPENSSL_USE_IPV6
+ memcpy(&(data->peer),to, sizeof(struct sockaddr_storage));
+#else
+ memcpy(&(data->peer),to, sizeof(struct sockaddr_in));
+#endif
#if 0
}
#endif
break;
/* (Linux)kernel sets DF bit on outgoing IP packets */
-#ifdef IP_MTU_DISCOVER
case BIO_CTRL_DGRAM_MTU_DISCOVER:
- sockopt_val = IP_PMTUDISC_DO;
- if ((ret = setsockopt(b->num, IPPROTO_IP, IP_MTU_DISCOVER,
- &sockopt_val, sizeof(sockopt_val))) < 0)
- perror("setsockopt");
+#ifdef OPENSSL_SYS_LINUX
+ addr_len = (socklen_t)sizeof(struct sockaddr_storage);
+ memset((void *)&addr, 0, sizeof(struct sockaddr_storage));
+ if (getsockname(b->num, (void *)&addr, &addr_len) < 0)
+ {
+ ret = 0;
+ break;
+ }
+ sockopt_len = sizeof(sockopt_val);
+ switch (addr.ss_family)
+ {
+ case AF_INET:
+ sockopt_val = IP_PMTUDISC_DO;
+ if ((ret = setsockopt(b->num, IPPROTO_IP, IP_MTU_DISCOVER,
+ &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;
+ }
+ ret = -1;
+#else
break;
#endif
case BIO_CTRL_DGRAM_QUERY_MTU:
- sockopt_len = sizeof(sockopt_val);
- if ((ret = getsockopt(b->num, IPPROTO_IP, IP_MTU, (void *)&sockopt_val,
- &sockopt_len)) < 0 || sockopt_val < 0)
- { ret = 0; }
- else
+#ifdef OPENSSL_SYS_LINUX
+ addr_len = (socklen_t)sizeof(struct sockaddr_storage);
+ memset((void *)&addr, 0, sizeof(struct sockaddr_storage));
+ if (getsockname(b->num, (void *)&addr, &addr_len) < 0)
{
- data->mtu = sockopt_val;
- ret = data->mtu;
+ ret = 0;
+ break;
}
+ sockopt_len = sizeof(sockopt_val);
+ switch (addr.ss_family)
+ {
+ case AF_INET:
+ if ((ret = getsockopt(b->num, IPPROTO_IP, IP_MTU, (void *)&sockopt_val,
+ &sockopt_len)) < 0 || sockopt_val < 0)
+ {
+ ret = 0;
+ }
+ else
+ {
+ /* we assume that the transport protocol is UDP and no
+ * IP options are used.
+ */
+ data->mtu = sockopt_val - 8 - 20;
+ 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)
+ {
+ ret = 0;
+ }
+ else
+ {
+ /* we assume that the transport protocol is UDP and no
+ * IPV6 options are used.
+ */
+ data->mtu = sockopt_val - 8 - 40;
+ ret = data->mtu;
+ }
+ break;
+#endif
+ default:
+ ret = 0;
+ break;
+ }
+#else
+ ret = 0;
+#endif
break;
case BIO_CTRL_DGRAM_GET_MTU:
return data->mtu;
if ( to != NULL)
{
data->connected = 1;
- memcpy(&(data->peer),to, sizeof(struct sockaddr));
+#if OPENSSL_USE_IPV6
+ memcpy(&(data->peer),to, sizeof(struct sockaddr_storage));
+#else
+ memcpy(&(data->peer),to, sizeof(struct sockaddr_in));
+#endif
}
else
{
data->connected = 0;
- memset(&(data->peer), 0x00, sizeof(struct sockaddr));
+#if OPENSSL_USE_IPV6
+ memset(&(data->peer), 0x00, sizeof(struct sockaddr_storage));
+#else
+ memset(&(data->peer), 0x00, sizeof(struct sockaddr_in));
+#endif
}
break;
- case BIO_CTRL_DGRAM_SET_PEER:
- to = (struct sockaddr *) ptr;
+ case BIO_CTRL_DGRAM_GET_PEER:
+ to = (struct sockaddr *) ptr;
- memcpy(&(data->peer), to, sizeof(struct sockaddr));
- break;
- case BIO_CTRL_DGRAM_SET_TIMEOUT:
- if (num > 0)
- {
-#ifdef OPENSSL_SYS_WIN32
- struct _timeb tb;
- _ftime(&tb);
- data->hstimeout.tv_sec = (long)tb.time;
- data->hstimeout.tv_usec = (long)tb.millitm * 1000;
+#if OPENSSL_USE_IPV6
+ memcpy(to, &(data->peer), sizeof(struct sockaddr_storage));
+ ret = sizeof(struct sockaddr_storage);
#else
- gettimeofday(&(data->hstimeout), NULL);
+ memcpy(to, &(data->peer), sizeof(struct sockaddr_in));
+ ret = sizeof(struct sockaddr_in);
#endif
- data->hstimeout.tv_sec += data->hstimeoutdiff.tv_sec;
- data->hstimeout.tv_usec += data->hstimeoutdiff.tv_usec;
- if (data->hstimeout.tv_usec >= 1000000)
- {
- data->hstimeout.tv_sec++;
- data->hstimeout.tv_usec -= 1000000;
- }
- }
- else
- {
- memset(&(data->hstimeout), 0, sizeof(struct timeval));
- }
+ break;
+ case BIO_CTRL_DGRAM_SET_PEER:
+ to = (struct sockaddr *) ptr;
+
+#if OPENSSL_USE_IPV6
+ memcpy(&(data->peer), to, sizeof(struct sockaddr_storage));
+#else
+ memcpy(&(data->peer), to, sizeof(struct sockaddr_in));
+#endif
+ break;
+ case BIO_CTRL_DGRAM_SET_NEXT_TIMEOUT:
+ memcpy(&(data->next_timeout), ptr, sizeof(struct timeval));
break;
#if defined(SO_RCVTIMEO)
case BIO_CTRL_DGRAM_SET_RECV_TIMEOUT:
sizeof(struct timeval)) < 0)
{ perror("setsockopt"); ret = -1; }
#endif
- memcpy(&(data->hstimeoutdiff), ptr, sizeof(struct timeval));
break;
case BIO_CTRL_DGRAM_GET_RECV_TIMEOUT:
#ifdef OPENSSL_SYS_WINDOWS
# endif
#endif
-#if defined(ENOTCONN)
- case ENOTCONN:
-#endif
-
#ifdef EINTR
case EINTR:
#endif
case EALREADY:
#endif
-/* DF bit set, and packet larger than MTU */
-#ifdef EMSGSIZE
- case EMSGSIZE:
-#endif
-
return(1);
/* break; */
default:
return(0);
}
#endif
+
+static void get_current_time(struct timeval *t)
+ {
+#ifdef OPENSSL_SYS_WIN32
+ struct _timeb tb;
+ _ftime(&tb);
+ t->tv_sec = (long)tb.time;
+ t->tv_usec = (long)tb.millitm * 1000;
+#elif defined(OPENSSL_SYS_VMS)
+ struct timeb tb;
+ ftime(&tb);
+ t->tv_sec = (long)tb.time;
+ t->tv_usec = (long)tb.millitm * 1000;
+#else
+ gettimeofday(t, NULL);
+#endif
+ }
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