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authorJoel Sherrill <joel.sherrill@OARcorp.com>2011-07-14 19:16:09 +0000
committerJoel Sherrill <joel.sherrill@OARcorp.com>2011-07-14 19:16:09 +0000
commit067489b904f74af62da93425f1195a93ea40d293 (patch)
treeeebcc2f64f9e2c01e11cc7cf738b5173bb30b866 /cpukit
parent2011-07-14 Jennifer Averett <Jennifer.Averett@OARcorp.com> (diff)
downloadrtems-067489b904f74af62da93425f1195a93ea40d293.tar.bz2
2011-07-14 Gene Smith <gene.smith@siemens.com>
PR 1381/networking * libnetworking/netinet/ip_output.c: If a null or unreachable gateway is specified either statically in networkconfig.h or from dhcp/bootp, sendto() fails on multicast send with errno 118 Host
Diffstat (limited to 'cpukit')
-rw-r--r--cpukit/ChangeLog7
-rw-r--r--cpukit/libnetworking/netinet/ip_output.c9
2 files changed, 16 insertions, 0 deletions
diff --git a/cpukit/ChangeLog b/cpukit/ChangeLog
index 0f8a4fe809..3e09b33ded 100644
--- a/cpukit/ChangeLog
+++ b/cpukit/ChangeLog
@@ -1,3 +1,10 @@
+2011-07-14 Gene Smith <gene.smith@siemens.com>
+
+ PR 1381/networking
+ * libnetworking/netinet/ip_output.c: If a null or unreachable gateway
+ is specified either statically in networkconfig.h or from dhcp/bootp,
+ sendto() fails on multicast send with errno 118 Host
+
2011-07-13 Till Straumann <strauman@slac.stanford.edu>
PR 1775/filesystem
diff --git a/cpukit/libnetworking/netinet/ip_output.c b/cpukit/libnetworking/netinet/ip_output.c
index 510f9d046b..cf112de564 100644
--- a/cpukit/libnetworking/netinet/ip_output.c
+++ b/cpukit/libnetworking/netinet/ip_output.c
@@ -167,6 +167,15 @@ ip_output(struct mbuf *m0, struct mbuf *opt, struct route *ro, int flags,
ifp = ia->ia_ifp;
ip->ip_ttl = 1;
isbroadcast = in_broadcast(dst->sin_addr, ifp);
+ } else if (IN_MULTICAST(ntohl(ip->ip_dst.s_addr)) &&
+ imo != NULL && imo->imo_multicast_ifp != NULL) {
+ /*
+ * Bypass the normal routing lookup for multicast
+ * packets if the interface is specified.
+ */
+ ifp = imo->imo_multicast_ifp;
+ IFP_TO_IA(ifp, ia);
+ isbroadcast = 0; /* fool gcc */
} else {
/*
* If this is the case, we probably don't want to allocate