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udp: split out TTL and loop options

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Split setting the TTL and loop parameters in 2 methods as they are not related.
Fix setting the TTL correctly for multicast streams.

See #588245
This commit is contained in:
Jarkko Palviainen 2009-08-31 12:13:07 +02:00 committed by Wim Taymans
parent 6a53d0a2c9
commit e2518fedbe
3 changed files with 96 additions and 19 deletions
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43
gst/udp/gstmultiudpsink.c
View file

@ -723,14 +723,26 @@ gst_multiudpsink_init_send (GstMultiUDPSink * sink)
sink->bytes_to_serve = 0;
sink->bytes_served = 0;
gst_udp_set_loop_ttl (sink->sock, sink->loop, sink->ttl);
gst_multiudpsink_setup_qos_dscp (sink);
/* look for multicast clients and join multicast groups appropriately */
/* look for multicast clients and join multicast groups appropriately
set also ttl and multicast loopback delivery appropriately */
for (clients = sink->clients; clients; clients = g_list_next (clients)) {
client = (GstUDPClient *) clients->data;
if (sink->auto_multicast && gst_udp_is_multicast (&client->theiraddr))
gst_udp_join_group (*(client->sock), &client->theiraddr, NULL);
if (gst_udp_is_multicast (&client->theiraddr)) {
if (sink->auto_multicast) {
if (gst_udp_join_group (*(client->sock), &client->theiraddr, NULL)
!= 0)
goto join_group_failed;
}
if (gst_udp_set_loop (sink->sock, sink->loop) != 0)
goto loop_failed;
if (gst_udp_set_ttl (sink->sock, sink->ttl, TRUE) != 0)
goto ttl_failed;
} else {
if (gst_udp_set_ttl (sink->sock, sink->ttl, FALSE) != 0)
goto ttl_failed;
}
}
return TRUE;
@ -749,6 +761,29 @@ no_broadcast:
g_strerror (errno)));
return FALSE;
}
join_group_failed:
{
CLOSE_IF_REQUESTED (sink);
GST_ELEMENT_ERROR (sink, RESOURCE, SETTINGS, (NULL),
("Could not join multicast group (%d): %s", errno, g_strerror (errno)));
return FALSE;
}
ttl_failed:
{
CLOSE_IF_REQUESTED (sink);
GST_ELEMENT_ERROR (sink, RESOURCE, SETTINGS, (NULL),
("Could not set TTL socket option (%d): %s", errno,
g_strerror (errno)));
return FALSE;
}
loop_failed:
{
CLOSE_IF_REQUESTED (sink);
GST_ELEMENT_ERROR (sink, RESOURCE, SETTINGS, (NULL),
("Could not set loopback socket option (%d): %s", errno,
g_strerror (errno)));
return FALSE;
}
}
static void

69
gst/udp/gstudpnetutils.c
View file

@ -113,7 +113,7 @@ beach:
}
int
gst_udp_set_loop_ttl (int sockfd, gboolean loop, int ttl)
gst_udp_set_loop (int sockfd, gboolean loop)
{
socklen_t socklen;
struct sockaddr_storage addr;
@ -128,29 +128,70 @@ gst_udp_set_loop_ttl (int sockfd, gboolean loop, int ttl)
switch (addr.ss_family) {
case AF_INET:
{
if ((ret =
setsockopt (sockfd, IPPROTO_IP, IP_MULTICAST_LOOP, &l,
sizeof (l))) < 0)
ret = setsockopt (sockfd, IPPROTO_IP, IP_MULTICAST_LOOP, &l, sizeof (l));
if (ret < 0)
return ret;
if ((ret =
setsockopt (sockfd, IPPROTO_IP, IP_MULTICAST_TTL, &ttl,
sizeof (ttl))) < 0)
break;
}
case AF_INET6:
{
ret =
setsockopt (sockfd, IPPROTO_IPV6, IPV6_MULTICAST_LOOP, &l,
sizeof (l));
if (ret < 0)
return ret;
break;
}
default:
#ifdef G_OS_WIN32
WSASetLastError (WSAEAFNOSUPPORT);
#else
errno = EAFNOSUPPORT;
#endif
}
return ret;
}
int
gst_udp_set_ttl (int sockfd, int ttl, gboolean is_multicast)
{
socklen_t socklen;
struct sockaddr_storage addr;
int optname = -1;
int ret = -1;
socklen = sizeof (addr);
if ((ret = getsockname (sockfd, (struct sockaddr *) &addr, &socklen)) < 0) {
return ret;
}
switch (addr.ss_family) {
case AF_INET:
{
optname = (is_multicast == TRUE) ? IP_MULTICAST_TTL : IP_TTL;
ret = setsockopt (sockfd, IPPROTO_IP, optname, &ttl, sizeof (ttl));
if (ret < 0)
return ret;
break;
}
case AF_INET6:
{
if ((ret =
setsockopt (sockfd, IPPROTO_IPV6, IPV6_MULTICAST_LOOP, &l,
sizeof (l))) < 0)
optname =
(is_multicast == TRUE) ? IPV6_MULTICAST_HOPS : IPV6_UNICAST_HOPS;
ret = setsockopt (sockfd, IPPROTO_IPV6, optname, &ttl, sizeof (ttl));
if (ret < 0)
return ret;
if ((ret =
setsockopt (sockfd, IPPROTO_IPV6, IPV6_MULTICAST_HOPS, &ttl,
sizeof (ttl))) < 0)
/* When using IPV4 address with IPV6 socket, both TTL values
must be set in order to actually use the given value.
Has no effect when IPV6 address is used. */
optname = (is_multicast == TRUE) ? IP_MULTICAST_TTL : IP_TTL;
ret = setsockopt (sockfd, IPPROTO_IP, optname, &ttl, sizeof (ttl));
if (ret < 0)
return ret;
break;
}
default:

3
gst/udp/gstudpnetutils.h
View file

@ -80,7 +80,8 @@ int gst_udp_get_sockaddr_length(struct sockaddr_storage *addr);
int gst_udp_get_addr (const char *hostname, int port, struct sockaddr_storage *addr);
int gst_udp_is_multicast (struct sockaddr_storage *addr);
int gst_udp_set_loop_ttl (int sockfd, gboolean loop, int ttl);
int gst_udp_set_loop (int sockfd, gboolean loop);
int gst_udp_set_ttl (int sockfd, int ttl, gboolean is_multicast);
int gst_udp_join_group (int sockfd, struct sockaddr_storage *addr,
gchar *iface);