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path: root/openssl/crypto/bio/bss_dgram.c
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Diffstat (limited to 'openssl/crypto/bio/bss_dgram.c')
-rw-r--r--openssl/crypto/bio/bss_dgram.c85
1 files changed, 59 insertions, 26 deletions
diff --git a/openssl/crypto/bio/bss_dgram.c b/openssl/crypto/bio/bss_dgram.c
index 1b1e4bec8..899090997 100644
--- a/openssl/crypto/bio/bss_dgram.c
+++ b/openssl/crypto/bio/bss_dgram.c
@@ -77,10 +77,20 @@
#define OPENSSL_SCTP_FORWARD_CUM_TSN_CHUNK_TYPE 0xc0
#endif
-#ifdef OPENSSL_SYS_LINUX
+#if defined(OPENSSL_SYS_LINUX) && !defined(IP_MTU)
#define IP_MTU 14 /* linux is lame */
#endif
+#if defined(__FreeBSD__) && defined(IN6_IS_ADDR_V4MAPPED)
+/* Standard definition causes type-punning problems. */
+#undef IN6_IS_ADDR_V4MAPPED
+#define s6_addr32 __u6_addr.__u6_addr32
+#define IN6_IS_ADDR_V4MAPPED(a) \
+ (((a)->s6_addr32[0] == 0) && \
+ ((a)->s6_addr32[1] == 0) && \
+ ((a)->s6_addr32[2] == htonl(0x0000ffff)))
+#endif
+
#ifdef WATT32
#define sock_write SockWrite /* Watt-32 uses same names */
#define sock_read SockRead
@@ -255,7 +265,7 @@ 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);
+ union { size_t s; int i; } sz = {0};
/* Is a timer active? */
if (data->next_timeout.tv_sec > 0 || data->next_timeout.tv_usec > 0)
@@ -265,8 +275,10 @@ static void dgram_adjust_rcv_timeout(BIO *b)
/* Read current socket timeout */
#ifdef OPENSSL_SYS_WINDOWS
int timeout;
+
+ sz.i = sizeof(timeout);
if (getsockopt(b->num, SOL_SOCKET, SO_RCVTIMEO,
- (void*)&timeout, &sz) < 0)
+ (void*)&timeout, &sz.i) < 0)
{ perror("getsockopt"); }
else
{
@@ -274,9 +286,12 @@ static void dgram_adjust_rcv_timeout(BIO *b)
data->socket_timeout.tv_usec = (timeout % 1000) * 1000;
}
#else
+ sz.i = sizeof(data->socket_timeout);
if ( getsockopt(b->num, SOL_SOCKET, SO_RCVTIMEO,
&(data->socket_timeout), (void *)&sz) < 0)
{ perror("getsockopt"); }
+ else if (sizeof(sz.s)!=sizeof(sz.i) && sz.i==0)
+ OPENSSL_assert(sz.s<=sizeof(data->socket_timeout));
#endif
/* Get current time */
@@ -445,11 +460,10 @@ static long dgram_ctrl(BIO *b, int cmd, long num, void *ptr)
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
+#if defined(OPENSSL_SYS_LINUX) && (defined(IP_MTU_DISCOVER) || defined(IP_MTU))
+ int sockopt_val = 0;
+ socklen_t sockopt_len; /* assume that system supporting IP_MTU is
+ * modern enough to define socklen_t */
socklen_t addr_len;
union {
struct sockaddr sa;
@@ -531,7 +545,7 @@ static long dgram_ctrl(BIO *b, int cmd, long num, void *ptr)
break;
/* (Linux)kernel sets DF bit on outgoing IP packets */
case BIO_CTRL_DGRAM_MTU_DISCOVER:
-#ifdef OPENSSL_SYS_LINUX
+#if defined(OPENSSL_SYS_LINUX) && defined(IP_MTU_DISCOVER) && defined(IP_PMTUDISC_DO)
addr_len = (socklen_t)sizeof(addr);
memset((void *)&addr, 0, sizeof(addr));
if (getsockname(b->num, &addr.sa, &addr_len) < 0)
@@ -539,7 +553,6 @@ static long dgram_ctrl(BIO *b, int cmd, long num, void *ptr)
ret = 0;
break;
}
- sockopt_len = sizeof(sockopt_val);
switch (addr.sa.sa_family)
{
case AF_INET:
@@ -548,7 +561,7 @@ 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 && defined(IPV6_MTU_DISCOVER)
+#if OPENSSL_USE_IPV6 && defined(IPV6_MTU_DISCOVER) && defined(IPV6_PMTUDISC_DO)
case AF_INET6:
sockopt_val = IPV6_PMTUDISC_DO;
if ((ret = setsockopt(b->num, IPPROTO_IPV6, IPV6_MTU_DISCOVER,
@@ -565,7 +578,7 @@ static long dgram_ctrl(BIO *b, int cmd, long num, void *ptr)
break;
#endif
case BIO_CTRL_DGRAM_QUERY_MTU:
-#ifdef OPENSSL_SYS_LINUX
+#if defined(OPENSSL_SYS_LINUX) && defined(IP_MTU)
addr_len = (socklen_t)sizeof(addr);
memset((void *)&addr, 0, sizeof(addr));
if (getsockname(b->num, &addr.sa, &addr_len) < 0)
@@ -727,12 +740,15 @@ static long dgram_ctrl(BIO *b, int cmd, long num, void *ptr)
#endif
break;
case BIO_CTRL_DGRAM_GET_RECV_TIMEOUT:
-#ifdef OPENSSL_SYS_WINDOWS
{
- int timeout, sz = sizeof(timeout);
+ union { size_t s; int i; } sz = {0};
+#ifdef OPENSSL_SYS_WINDOWS
+ int timeout;
struct timeval *tv = (struct timeval *)ptr;
+
+ sz.i = sizeof(timeout);
if (getsockopt(b->num, SOL_SOCKET, SO_RCVTIMEO,
- (void*)&timeout, &sz) < 0)
+ (void*)&timeout, &sz.i) < 0)
{ perror("getsockopt"); ret = -1; }
else
{
@@ -740,12 +756,20 @@ static long dgram_ctrl(BIO *b, int cmd, long num, void *ptr)
tv->tv_usec = (timeout % 1000) * 1000;
ret = sizeof(*tv);
}
- }
#else
+ sz.i = sizeof(struct timeval);
if ( getsockopt(b->num, SOL_SOCKET, SO_RCVTIMEO,
- ptr, (void *)&ret) < 0)
+ ptr, (void *)&sz) < 0)
{ perror("getsockopt"); ret = -1; }
+ else if (sizeof(sz.s)!=sizeof(sz.i) && sz.i==0)
+ {
+ OPENSSL_assert(sz.s<=sizeof(struct timeval));
+ ret = (int)sz.s;
+ }
+ else
+ ret = sz.i;
#endif
+ }
break;
#endif
#if defined(SO_SNDTIMEO)
@@ -765,12 +789,15 @@ static long dgram_ctrl(BIO *b, int cmd, long num, void *ptr)
#endif
break;
case BIO_CTRL_DGRAM_GET_SEND_TIMEOUT:
-#ifdef OPENSSL_SYS_WINDOWS
{
- int timeout, sz = sizeof(timeout);
+ union { size_t s; int i; } sz = {0};
+#ifdef OPENSSL_SYS_WINDOWS
+ int timeout;
struct timeval *tv = (struct timeval *)ptr;
+
+ sz.i = sizeof(timeout);
if (getsockopt(b->num, SOL_SOCKET, SO_SNDTIMEO,
- (void*)&timeout, &sz) < 0)
+ (void*)&timeout, &sz.i) < 0)
{ perror("getsockopt"); ret = -1; }
else
{
@@ -778,12 +805,20 @@ static long dgram_ctrl(BIO *b, int cmd, long num, void *ptr)
tv->tv_usec = (timeout % 1000) * 1000;
ret = sizeof(*tv);
}
- }
#else
+ sz.i = sizeof(struct timeval);
if ( getsockopt(b->num, SOL_SOCKET, SO_SNDTIMEO,
- ptr, (void *)&ret) < 0)
+ ptr, (void *)&sz) < 0)
{ perror("getsockopt"); ret = -1; }
+ else if (sizeof(sz.s)!=sizeof(sz.i) && sz.i==0)
+ {
+ OPENSSL_assert(sz.s<=sizeof(struct timeval));
+ ret = (int)sz.s;
+ }
+ else
+ ret = sz.i;
#endif
+ }
break;
#endif
case BIO_CTRL_DGRAM_GET_SEND_TIMER_EXP:
@@ -955,7 +990,6 @@ static int dgram_sctp_free(BIO *a)
#ifdef SCTP_AUTHENTICATION_EVENT
void dgram_sctp_handle_auth_free_key_event(BIO *b, union sctp_notification *snp)
{
- unsigned int sockopt_len = 0;
int ret;
struct sctp_authkey_event* authkeyevent = &snp->sn_auth_event;
@@ -965,9 +999,8 @@ void dgram_sctp_handle_auth_free_key_event(BIO *b, union sctp_notification *snp)
/* delete key */
authkeyid.scact_keynumber = authkeyevent->auth_keynumber;
- sockopt_len = sizeof(struct sctp_authkeyid);
ret = setsockopt(b->num, IPPROTO_SCTP, SCTP_AUTH_DELETE_KEY,
- &authkeyid, sockopt_len);
+ &authkeyid, sizeof(struct sctp_authkeyid));
}
}
#endif
@@ -1298,7 +1331,7 @@ static long dgram_sctp_ctrl(BIO *b, int cmd, long num, void *ptr)
{
long ret=1;
bio_dgram_sctp_data *data = NULL;
- unsigned int sockopt_len = 0;
+ socklen_t sockopt_len = 0;
struct sctp_authkeyid authkeyid;
struct sctp_authkey *authkey;
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-25 10:09:44 +0000