Change in osmo-bts[master]: osmo_mcast_sock: make sure SO_REUSEADDR is applied

[dexter]

dexter has uploaded this change for review. ( https://gerrit.osmocom.org/10589


Change subject: osmo_mcast_sock: make sure SO_REUSEADDR is applied
......................................................................

osmo_mcast_sock: make sure SO_REUSEADDR is applied

osmo-bts-virtual uses UDP multicast to communicate with its virtphy
counterpart. At the momemnt SO_REUSEADDR is not applied for those
multicast connections because OSMO_SOCK_F_UDP_REUSEADDR is not set. This
makes prevents the proper function of UDP multicast.

- Make sure OSMO_SOCK_F_UDP_REUSEADDR is set

Change-Id: I7f27758b7aa786c8dbae669cbcde10baab8e4845
Depends: libosmocore I1399a428467ca12f1564a14eb8ffb294d4f59874
Related: OS#3497
---
M src/osmo-bts-virtual/osmo_mcast_sock.c
1 file changed, 3 insertions(+), 2 deletions(-)



  git pull ssh://gerrit.osmocom.org:29418/osmo-bts refs/changes/89/10589/1

diff --git a/src/osmo-bts-virtual/osmo_mcast_sock.c b/src/osmo-bts-virtual/osmo_mcast_sock.c
index f092a73..c0f0af5 100644
--- a/src/osmo-bts-virtual/osmo_mcast_sock.c
+++ b/src/osmo-bts-virtual/osmo_mcast_sock.c
@@ -17,7 +17,7 @@
 			    uint16_t tx_mcast_port, bool loopback)
 {
 	int rc;
-	unsigned int flags = OSMO_SOCK_F_CONNECT;
+	unsigned int flags = OSMO_SOCK_F_CONNECT | OSMO_SOCK_F_UDP_REUSEADDR;
 
 	if (!loopback)
 		flags |= OSMO_SOCK_F_NO_MCAST_LOOP;
@@ -41,6 +41,7 @@
 			    void *osmo_fd_data)
 {
 	int rc;
+	unsigned int flags = OSMO_SOCK_F_BIND | OSMO_SOCK_F_NO_MCAST_ALL | OSMO_SOCK_F_UDP_REUSEADDR;
 
 	ofd->cb = fd_rx_cb;
 	ofd->when = BSC_FD_READ;
@@ -48,7 +49,7 @@
 
 	/* Create mcast client socket */
 	rc = osmo_sock_init_ofd(ofd, AF_INET, SOCK_DGRAM, IPPROTO_UDP,
-				NULL, mcast_port, OSMO_SOCK_F_BIND|OSMO_SOCK_F_NO_MCAST_ALL);
+				NULL, mcast_port, flags);
 	if (rc < 0) {
 		perror("Could not create mcast client socket");
 		return rc;

-- 
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Gerrit-Project: osmo-bts
Gerrit-Branch: master
Gerrit-MessageType: newchange
Gerrit-Change-Id: I7f27758b7aa786c8dbae669cbcde10baab8e4845
Gerrit-Change-Number: 10589
Gerrit-PatchSet: 1
Gerrit-Owner: dexter <pmaier at sysmocom.de>
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