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Posted to commits@nuttx.apache.org by bt...@apache.org on 2020/12/05 18:45:04 UTC
[incubator-nuttx] 01/03: net/igmp: add MULTICAST_TTL support
This is an automated email from the ASF dual-hosted git repository.
btashton pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/incubator-nuttx.git
commit 4af687b8c23b6775eaf9660076d2054055219a1e
Author: chao.an <an...@xiaomi.com>
AuthorDate: Thu Dec 3 13:53:50 2020 +0800
net/igmp: add MULTICAST_TTL support
Signed-off-by: chao.an <an...@xiaomi.com>
---
net/inet/ipv4_setsockopt.c | 30 ++++++++++++++++++++++++++++--
1 file changed, 28 insertions(+), 2 deletions(-)
diff --git a/net/inet/ipv4_setsockopt.c b/net/inet/ipv4_setsockopt.c
index e1e21eb..b5bb7bc 100644
--- a/net/inet/ipv4_setsockopt.c
+++ b/net/inet/ipv4_setsockopt.c
@@ -51,6 +51,7 @@
#include "netdev/netdev.h"
#include "igmp/igmp.h"
#include "inet/inet.h"
+#include "udp/udp.h"
#ifdef CONFIG_NET_IPv4
@@ -184,12 +185,37 @@ int ipv4_setsockopt(FAR struct socket *psock, int option,
}
break;
+ case IP_MULTICAST_TTL: /* Set/read the time-to-live value of
+ * outgoing multicast packets */
+ {
+ if (psock->s_type != SOCK_DGRAM ||
+ value_len != sizeof(int))
+ {
+ ret = -EINVAL;
+ }
+ else
+ {
+ FAR struct udp_conn_s *conn;
+ int ttl = *(FAR int *)value;
+
+ if (ttl <= 0 || ttl > 255)
+ {
+ ret = -EINVAL;
+ }
+ else
+ {
+ conn = (FAR struct udp_conn_s *)psock->s_conn;
+ conn->ttl = ttl;
+ ret = OK;
+ }
+ }
+ }
+ break;
+
/* The following IPv4 socket options are defined, but not implemented */
case IP_MULTICAST_IF: /* Set local device for a multicast
* socket */
- case IP_MULTICAST_TTL: /* Set/read the time-to-live value of
- * outgoing multicast packets */
case IP_MULTICAST_LOOP: /* Set/read boolean that determines
* whether sent multicast packets
* should be looped back to local